diff options
Diffstat (limited to 'drivers/net/wireless')
27 files changed, 16690 insertions, 0 deletions
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 8d1541bbe257..7bed87e63da2 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -579,6 +579,7 @@ config ADM8211 source "drivers/net/wireless/hostap/Kconfig" source "drivers/net/wireless/bcm43xx/Kconfig" +source "drivers/net/wireless/b43/Kconfig" source "drivers/net/wireless/zd1211rw/Kconfig" endmenu diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index e9bffdae0a04..765dbbcf54be 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_PRISM54) += prism54/ obj-$(CONFIG_HOSTAP) += hostap/ obj-$(CONFIG_BCM43XX) += bcm43xx/ +obj-$(CONFIG_B43) += b43/ obj-$(CONFIG_ZD1211RW) += zd1211rw/ # 16-bit wireless PCMCIA client drivers diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig new file mode 100644 index 000000000000..4620119891f2 --- /dev/null +++ b/drivers/net/wireless/b43/Kconfig @@ -0,0 +1,119 @@ +config B43 + tristate "Broadcom 43xx wireless support (mac80211 stack)" + depends on SSB_POSSIBLE && MAC80211 && WLAN_80211 + select SSB + select FW_LOADER + select HW_RANDOM + ---help--- + b43 is a driver for the Broadcom 43xx series wireless devices. + + Check "lspci" for something like + "Broadcom Corporation BCM43XX 802.11 Wireless LAN Controller" + to determine whether you own such a device. + + This driver supports the new BCM43xx IEEE 802.11G devices, but not + the old IEEE 802.11B devices. Old devices are supported by + the b43legacy driver. + Note that this has nothing to do with the standard that your AccessPoint + supports (A, B, G or a combination). + IEEE 802.11G devices can talk to IEEE 802.11B AccessPoints. + + It is safe to include both b43 and b43legacy as the underlying glue + layer will automatically load the correct version for your device. + + This driver uses V4 firmware, which must be installed separately using + b43-fwcutter. + + This driver can be built as a module (recommended) that will be called "b43". + If unsure, say M. + +# Auto-select SSB PCI-HOST support, if possible +config B43_PCI_AUTOSELECT + bool + depends on B43 && SSB_PCIHOST_POSSIBLE + select SSB_PCIHOST + default y + +# Auto-select SSB PCICORE driver, if possible +config B43_PCICORE_AUTOSELECT + bool + depends on B43 && SSB_DRIVER_PCICORE_POSSIBLE + select SSB_DRIVER_PCICORE + default y + +config B43_PCMCIA + bool "Broadcom 43xx PCMCIA device support (EXPERIMENTAL)" + depends on B43 && SSB_PCMCIAHOST_POSSIBLE && EXPERIMENTAL + select SSB_PCMCIAHOST + ---help--- + Broadcom 43xx PCMCIA device support. + + Support for 16bit PCMCIA devices. + Please note that most PC-CARD devices are _NOT_ 16bit PCMCIA + devices, but 32bit CardBUS devices. CardBUS devices are supported + out of the box by b43. + + With this config option you can drive b43 cards in + CompactFlash formfactor in a PCMCIA adaptor. + CF b43 cards can sometimes be found in handheld PCs. + + It's safe to select Y here, even if you don't have a B43 PCMCIA device. + + If unsure, say N. + +config B43_DEBUG + bool "Broadcom 43xx debugging" + depends on B43 + ---help--- + Broadcom 43xx debugging messages. + + Say Y, if you want to find out why the driver does not + work for you. + +config B43_DMA + bool + depends on B43 +config B43_PIO + bool + depends on B43 + +choice + prompt "Broadcom 43xx data transfer mode" + depends on B43 + default B43_DMA_AND_PIO_MODE + +config B43_DMA_AND_PIO_MODE + bool "DMA + PIO" + select B43_DMA + select B43_PIO + ---help--- + Include both, Direct Memory Access (DMA) and Programmed I/O (PIO) + data transfer modes. + The actually used mode is selectable through the module + parameter "pio". If the module parameter is pio=0, DMA is used. + Otherwise PIO is used. DMA is default. + + If unsure, choose this option. + +config B43_DMA_MODE + bool "DMA (Direct Memory Access) only" + select B43_DMA + ---help--- + Only include Direct Memory Access (DMA). + This reduces the size of the driver module, by omitting the PIO code. + +config B43_PIO_MODE + bool "PIO (Programmed I/O) only" + select B43_PIO + ---help--- + Only include Programmed I/O (PIO). + This reduces the size of the driver module, by omitting the DMA code. + Please note that PIO transfers are slow (compared to DMA). + + Also note that not all devices of the 43xx series support PIO. + The 4306 (Apple Airport Extreme and others) supports PIO, while + the 4318 is known to _not_ support PIO. + + Only use PIO, if DMA does not work for you. + +endchoice diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile new file mode 100644 index 000000000000..370935b84c5e --- /dev/null +++ b/drivers/net/wireless/b43/Makefile @@ -0,0 +1,17 @@ +# b43 core +b43-y += main.o +b43-y += tables.o +b43-y += phy.o +b43-y += sysfs.o +b43-y += leds.o +b43-y += xmit.o +b43-y += lo.o +# b43 PCMCIA support +b43-$(CONFIG_B43_PCMCIA) += pcmcia.o +# b43 debugging +b43-$(CONFIG_B43_DEBUG) += debugfs.o +# b43 DMA and PIO +b43-$(CONFIG_B43_DMA) += dma.o +b43-$(CONFIG_B43_PIO) += pio.o + +obj-$(CONFIG_B43) += b43.o diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h new file mode 100644 index 000000000000..270a2112de2a --- /dev/null +++ b/drivers/net/wireless/b43/b43.h @@ -0,0 +1,845 @@ +#ifndef B43_H_ +#define B43_H_ + +#include <linux/kernel.h> +#include <linux/spinlock.h> +#include <linux/interrupt.h> +#include <linux/hw_random.h> +#include <linux/ssb/ssb.h> +#include <net/mac80211.h> + +#include "debugfs.h" +#include "leds.h" +#include "lo.h" +#include "phy.h" + +#ifdef CONFIG_B43_DEBUG +# define B43_DEBUG 1 +#else +# define B43_DEBUG 0 +#endif + +#define B43_RX_MAX_SSI 60 + +/* MMIO offsets */ +#define B43_MMIO_DMA0_REASON 0x20 +#define B43_MMIO_DMA0_IRQ_MASK 0x24 +#define B43_MMIO_DMA1_REASON 0x28 +#define B43_MMIO_DMA1_IRQ_MASK 0x2C +#define B43_MMIO_DMA2_REASON 0x30 +#define B43_MMIO_DMA2_IRQ_MASK 0x34 +#define B43_MMIO_DMA3_REASON 0x38 +#define B43_MMIO_DMA3_IRQ_MASK 0x3C +#define B43_MMIO_DMA4_REASON 0x40 +#define B43_MMIO_DMA4_IRQ_MASK 0x44 +#define B43_MMIO_DMA5_REASON 0x48 +#define B43_MMIO_DMA5_IRQ_MASK 0x4C +#define B43_MMIO_MACCTL 0x120 +#define B43_MMIO_STATUS2_BITFIELD 0x124 +#define B43_MMIO_GEN_IRQ_REASON 0x128 +#define B43_MMIO_GEN_IRQ_MASK 0x12C +#define B43_MMIO_RAM_CONTROL 0x130 +#define B43_MMIO_RAM_DATA 0x134 +#define B43_MMIO_PS_STATUS 0x140 +#define B43_MMIO_RADIO_HWENABLED_HI 0x158 +#define B43_MMIO_SHM_CONTROL 0x160 +#define B43_MMIO_SHM_DATA 0x164 +#define B43_MMIO_SHM_DATA_UNALIGNED 0x166 +#define B43_MMIO_XMITSTAT_0 0x170 +#define B43_MMIO_XMITSTAT_1 0x174 +#define B43_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */ +#define B43_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */ + +/* 32-bit DMA */ +#define B43_MMIO_DMA32_BASE0 0x200 +#define B43_MMIO_DMA32_BASE1 0x220 +#define B43_MMIO_DMA32_BASE2 0x240 +#define B43_MMIO_DMA32_BASE3 0x260 +#define B43_MMIO_DMA32_BASE4 0x280 +#define B43_MMIO_DMA32_BASE5 0x2A0 +/* 64-bit DMA */ +#define B43_MMIO_DMA64_BASE0 0x200 +#define B43_MMIO_DMA64_BASE1 0x240 +#define B43_MMIO_DMA64_BASE2 0x280 +#define B43_MMIO_DMA64_BASE3 0x2C0 +#define B43_MMIO_DMA64_BASE4 0x300 +#define B43_MMIO_DMA64_BASE5 0x340 +/* PIO */ +#define B43_MMIO_PIO1_BASE 0x300 +#define B43_MMIO_PIO2_BASE 0x310 +#define B43_MMIO_PIO3_BASE 0x320 +#define B43_MMIO_PIO4_BASE 0x330 + +#define B43_MMIO_PHY_VER 0x3E0 +#define B43_MMIO_PHY_RADIO 0x3E2 +#define B43_MMIO_PHY0 0x3E6 +#define B43_MMIO_ANTENNA 0x3E8 +#define B43_MMIO_CHANNEL 0x3F0 +#define B43_MMIO_CHANNEL_EXT 0x3F4 +#define B43_MMIO_RADIO_CONTROL 0x3F6 +#define B43_MMIO_RADIO_DATA_HIGH 0x3F8 +#define B43_MMIO_RADIO_DATA_LOW 0x3FA +#define B43_MMIO_PHY_CONTROL 0x3FC +#define B43_MMIO_PHY_DATA 0x3FE +#define B43_MMIO_MACFILTER_CONTROL 0x420 +#define B43_MMIO_MACFILTER_DATA 0x422 +#define B43_MMIO_RCMTA_COUNT 0x43C +#define B43_MMIO_RADIO_HWENABLED_LO 0x49A +#define B43_MMIO_GPIO_CONTROL 0x49C +#define B43_MMIO_GPIO_MASK 0x49E +#define B43_MMIO_TSF_0 0x632 /* core rev < 3 only */ +#define B43_MMIO_TSF_1 0x634 /* core rev < 3 only */ +#define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */ +#define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */ +#define B43_MMIO_RNG 0x65A +#define B43_MMIO_POWERUP_DELAY 0x6A8 + +/* SPROM boardflags_lo values */ +#define B43_BFL_BTCOEXIST 0x0001 /* implements Bluetooth coexistance */ +#define B43_BFL_PACTRL 0x0002 /* GPIO 9 controlling the PA */ +#define B43_BFL_AIRLINEMODE 0x0004 /* implements GPIO 13 radio disable indication */ +#define B43_BFL_RSSI 0x0008 /* software calculates nrssi slope. */ +#define B43_BFL_ENETSPI 0x0010 /* has ephy roboswitch spi */ +#define B43_BFL_XTAL_NOSLOW 0x0020 /* no slow clock available */ +#define B43_BFL_CCKHIPWR 0x0040 /* can do high power CCK transmission */ +#define B43_BFL_ENETADM 0x0080 /* has ADMtek switch */ +#define B43_BFL_ENETVLAN 0x0100 /* can do vlan */ +#define B43_BFL_AFTERBURNER 0x0200 /* supports Afterburner mode */ +#define B43_BFL_NOPCI 0x0400 /* leaves PCI floating */ +#define B43_BFL_FEM 0x0800 /* supports the Front End Module */ +#define B43_BFL_EXTLNA 0x1000 /* has an external LNA */ +#define B43_BFL_HGPA 0x2000 /* had high gain PA */ +#define B43_BFL_BTCMOD 0x4000 /* BFL_BTCOEXIST is given in alternate GPIOs */ +#define B43_BFL_ALTIQ 0x8000 /* alternate I/Q settings */ + +/* GPIO register offset, in both ChipCommon and PCI core. */ +#define B43_GPIO_CONTROL 0x6c + +/* SHM Routing */ +enum { + B43_SHM_UCODE, /* Microcode memory */ + B43_SHM_SHARED, /* Shared memory */ + B43_SHM_SCRATCH, /* Scratch memory */ + B43_SHM_HW, /* Internal hardware register */ + B43_SHM_RCMTA, /* Receive match transmitter address (rev >= 5 only) */ +}; +/* SHM Routing modifiers */ +#define B43_SHM_AUTOINC_R 0x0200 /* Auto-increment address on read */ +#define B43_SHM_AUTOINC_W 0x0100 /* Auto-increment address on write */ +#define B43_SHM_AUTOINC_RW (B43_SHM_AUTOINC_R | \ + B43_SHM_AUTOINC_W) + +/* Misc SHM_SHARED offsets */ +#define B43_SHM_SH_WLCOREREV 0x0016 /* 802.11 core revision */ +#define B43_SHM_SH_PCTLWDPOS 0x0008 +#define B43_SHM_SH_RXPADOFF 0x0034 /* RX Padding data offset (PIO only) */ +#define B43_SHM_SH_PHYVER 0x0050 /* PHY version */ +#define B43_SHM_SH_PHYTYPE 0x0052 /* PHY type */ +#define B43_SHM_SH_ANTSWAP 0x005C /* Antenna swap threshold */ +#define B43_SHM_SH_HOSTFLO 0x005E /* Hostflags for ucode options (low) */ +#define B43_SHM_SH_HOSTFHI 0x0060 /* Hostflags for ucode options (high) */ +#define B43_SHM_SH_RFATT 0x0064 /* Current radio attenuation value */ +#define B43_SHM_SH_RADAR 0x0066 /* Radar register */ +#define B43_SHM_SH_PHYTXNOI 0x006E /* PHY noise directly after TX (lower 8bit only) */ +#define B43_SHM_SH_RFRXSP1 0x0072 /* RF RX SP Register 1 */ +#define B43_SHM_SH_CHAN 0x00A0 /* Current channel (low 8bit only) */ +#define B43_SHM_SH_CHAN_5GHZ 0x0100 /* Bit set, if 5Ghz channel */ +#define B43_SHM_SH_BCMCFIFOID 0x0108 /* Last posted cookie to the bcast/mcast FIFO */ +/* SHM_SHARED TX FIFO variables */ +#define B43_SHM_SH_SIZE01 0x0098 /* TX FIFO size for FIFO 0 (low) and 1 (high) */ +#define B43_SHM_SH_SIZE23 0x009A /* TX FIFO size for FIFO 2 and 3 */ +#define B43_SHM_SH_SIZE45 0x009C /* TX FIFO size for FIFO 4 and 5 */ +#define B43_SHM_SH_SIZE67 0x009E /* TX FIFO size for FIFO 6 and 7 */ +/* SHM_SHARED background noise */ +#define B43_SHM_SH_JSSI0 0x0088 /* Measure JSSI 0 */ +#define B43_SHM_SH_JSSI1 0x008A /* Measure JSSI 1 */ +#define B43_SHM_SH_JSSIAUX 0x008C /* Measure JSSI AUX */ +/* SHM_SHARED crypto engine */ +#define B43_SHM_SH_DEFAULTIV 0x003C /* Default IV location */ +#define B43_SHM_SH_NRRXTRANS 0x003E /* # of soft RX transmitter addresses (max 8) */ +#define B43_SHM_SH_KTP 0x0056 /* Key table pointer */ +#define B43_SHM_SH_TKIPTSCTTAK 0x0318 +#define B43_SHM_SH_KEYIDXBLOCK 0x05D4 /* Key index/algorithm block (v4 firmware) */ +#define B43_SHM_SH_PSM 0x05F4 /* PSM transmitter address match block (rev < 5) */ +/* SHM_SHARED WME variables */ +#define B43_SHM_SH_EDCFSTAT 0x000E /* EDCF status */ +#define B43_SHM_SH_TXFCUR 0x0030 /* TXF current index */ +#define B43_SHM_SH_EDCFQ 0x0240 /* EDCF Q info */ +/* SHM_SHARED powersave mode related */ +#define B43_SHM_SH_SLOTT 0x0010 /* Slot time */ +#define B43_SHM_SH_DTIMPER 0x0012 /* DTIM period */ +#define B43_SHM_SH_NOSLPZNATDTIM 0x004C /* NOSLPZNAT DTIM */ +/* SHM_SHARED beacon variables */ +#define B43_SHM_SH_BTL0 0x0018 /* Beacon template length 0 */ +#define B43_SHM_SH_BTL1 0x001A /* Beacon template length 1 */ +#define B43_SHM_SH_BTSFOFF 0x001C /* Beacon TSF offset */ +#define B43_SHM_SH_TIMBPOS 0x001E /* TIM B position in beacon */ +#define B43_SHM_SH_SFFBLIM 0x0044 /* Short frame fallback retry limit */ +#define B43_SHM_SH_LFFBLIM 0x0046 /* Long frame fallback retry limit */ +#define B43_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word (see PHY TX control) */ +/* SHM_SHARED ACK/CTS control */ +#define B43_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word (see PHY TX control) */ +/* SHM_SHARED probe response variables */ +#define B43_SHM_SH_PRSSID 0x0160 /* Probe Response SSID */ +#define B43_SHM_SH_PRSSIDLEN 0x0048 /* Probe Response SSID length */ +#define B43_SHM_SH_PRTLEN 0x004A /* Probe Response template length */ +#define B43_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */ +#define B43_SHM_SH_PRPHYCTL 0x0188 /* Probe Response PHY TX control word */ +/* SHM_SHARED rate tables */ +#define B43_SHM_SH_OFDMDIRECT 0x01C0 /* Pointer to OFDM direct map */ +#define B43_SHM_SH_OFDMBASIC 0x01E0 /* Pointer to OFDM basic rate map */ +#define B43_SHM_SH_CCKDIRECT 0x0200 /* Pointer to CCK direct map */ +#define B43_SHM_SH_CCKBASIC 0x0220 /* Pointer to CCK basic rate map */ +/* SHM_SHARED microcode soft registers */ +#define B43_SHM_SH_UCODEREV 0x0000 /* Microcode revision */ +#define B43_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */ +#define B43_SHM_SH_UCODEDATE 0x0004 /* Microcode date */ +#define B43_SHM_SH_UCODETIME 0x0006 /* Microcode time */ +#define B43_SHM_SH_UCODESTAT 0x0040 /* Microcode debug status code */ +#define B43_SHM_SH_UCODESTAT_INVALID 0 +#define B43_SHM_SH_UCODESTAT_INIT 1 +#define B43_SHM_SH_UCODESTAT_ACTIVE 2 +#define B43_SHM_SH_UCODESTAT_SUSP 3 /* suspended */ +#define B43_SHM_SH_UCODESTAT_SLEEP 4 /* asleep (PS) */ +#define B43_SHM_SH_MAXBFRAMES 0x0080 /* Maximum number of frames in a burst */ +#define B43_SHM_SH_SPUWKUP 0x0094 /* pre-wakeup for synth PU in us */ +#define B43_SHM_SH_PRETBTT 0x0096 /* pre-TBTT in us */ + +/* SHM_SCRATCH offsets */ +#define B43_SHM_SC_MINCONT 0x0003 /* Minimum contention window */ +#define B43_SHM_SC_MAXCONT 0x0004 /* Maximum contention window */ +#define B43_SHM_SC_CURCONT 0x0005 /* Current contention window */ +#define B43_SHM_SC_SRLIMIT 0x0006 /* Short retry count limit */ +#define B43_SHM_SC_LRLIMIT 0x0007 /* Long retry count limit */ +#define B43_SHM_SC_DTIMC 0x0008 /* Current DTIM count */ +#define B43_SHM_SC_BTL0LEN 0x0015 /* Beacon 0 template length */ +#define B43_SHM_SC_BTL1LEN 0x0016 /* Beacon 1 template length */ +#define B43_SHM_SC_SCFB 0x0017 /* Short frame transmit count threshold for rate fallback */ +#define B43_SHM_SC_LCFB 0x0018 /* Long frame transmit count threshold for rate fallback */ + +/* Hardware Radio Enable masks */ +#define B43_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16) +#define B43_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4) + +/* HostFlags. See b43_hf_read/write() */ +#define B43_HF_ANTDIVHELP 0x00000001 /* ucode antenna div helper */ +#define B43_HF_SYMW 0x00000002 /* G-PHY SYM workaround */ +#define B43_HF_RXPULLW 0x00000004 /* RX pullup workaround */ +#define B43_HF_CCKBOOST 0x00000008 /* 4dB CCK power boost (exclusive with OFDM boost) */ +#define B43_HF_BTCOEX 0x00000010 /* Bluetooth coexistance */ +#define B43_HF_GDCW 0x00000020 /* G-PHY DV canceller filter bw workaround */ +#define B43_HF_OFDMPABOOST 0x00000040 /* Enable PA gain boost for OFDM */ +#define B43_HF_ACPR 0x00000080 /* Disable for Japan, channel 14 */ +#define B43_HF_EDCF 0x00000100 /* on if WME and MAC suspended */ +#define B43_HF_TSSIRPSMW 0x00000200 /* TSSI reset PSM ucode workaround */ +#define B43_HF_DSCRQ 0x00000400 /* Disable slow clock request in ucode */ +#define B43_HF_ACIW 0x00000800 /* ACI workaround: shift bits by 2 on PHY CRS */ +#define B43_HF_2060W 0x00001000 /* 2060 radio workaround */ +#define B43_HF_RADARW 0x00002000 /* Radar workaround */ +#define B43_HF_USEDEFKEYS 0x00004000 /* Enable use of default keys */ +#define B43_HF_BT4PRIOCOEX 0x00010000 /* Bluetooth 2-priority coexistance */ +#define B43_HF_FWKUP 0x00020000 /* Fast wake-up ucode */ +#define B43_HF_VCORECALC 0x00040000 /* Force VCO recalculation when powering up synthpu */ +#define B43_HF_PCISCW 0x00080000 /* PCI slow clock workaround */ +#define B43_HF_4318TSSI 0x00200000 /* 4318 TSSI */ +#define B43_HF_FBCMCFIFO 0x00400000 /* Flush bcast/mcast FIFO immediately */ +#define B43_HF_HWPCTL 0x00800000 /* Enable hardwarre power control */ +#define B43_HF_BTCOEXALT 0x01000000 /* Bluetooth coexistance in alternate pins */ +#define B43_HF_TXBTCHECK 0x02000000 /* Bluetooth check during transmission */ +#define B43_HF_SKCFPUP 0x04000000 /* Skip CFP update */ + +/* MacFilter offsets. */ +#define B43_MACFILTER_SELF 0x0000 +#define B43_MACFILTER_BSSID 0x0003 + +/* PowerControl */ +#define B43_PCTL_IN 0xB0 +#define B43_PCTL_OUT 0xB4 +#define B43_PCTL_OUTENABLE 0xB8 +#define B43_PCTL_XTAL_POWERUP 0x40 +#define B43_PCTL_PLL_POWERDOWN 0x80 + +/* PowerControl Clock Modes */ +#define B43_PCTL_CLK_FAST 0x00 +#define B43_PCTL_CLK_SLOW 0x01 +#define B43_PCTL_CLK_DYNAMIC 0x02 + +#define B43_PCTL_FORCE_SLOW 0x0800 +#define B43_PCTL_FORCE_PLL 0x1000 +#define B43_PCTL_DYN_XTAL 0x2000 + +/* PHYVersioning */ +#define B43_PHYTYPE_A 0x00 +#define B43_PHYTYPE_B 0x01 +#define B43_PHYTYPE_G 0x02 + +/* PHYRegisters */ +#define B43_PHY_ILT_A_CTRL 0x0072 +#define B43_PHY_ILT_A_DATA1 0x0073 +#define B43_PHY_ILT_A_DATA2 0x0074 +#define B43_PHY_G_LO_CONTROL 0x0810 +#define B43_PHY_ILT_G_CTRL 0x0472 +#define B43_PHY_ILT_G_DATA1 0x0473 +#define B43_PHY_ILT_G_DATA2 0x0474 +#define B43_PHY_A_PCTL 0x007B +#define B43_PHY_G_PCTL 0x0029 +#define B43_PHY_A_CRS 0x0029 +#define B43_PHY_RADIO_BITFIELD 0x0401 +#define B43_PHY_G_CRS 0x0429 +#define B43_PHY_NRSSILT_CTRL 0x0803 +#define B43_PHY_NRSSILT_DATA 0x0804 + +/* RadioRegisters */ +#define B43_RADIOCTL_ID 0x01 + +/* MAC Control bitfield */ +#define B43_MACCTL_ENABLED 0x00000001 /* MAC Enabled */ +#define B43_MACCTL_PSM_RUN 0x00000002 /* Run Microcode */ +#define B43_MACCTL_PSM_JMP0 0x00000004 /* Microcode jump to 0 */ +#define B43_MACCTL_SHM_ENABLED 0x00000100 /* SHM Enabled */ +#define B43_MACCTL_SHM_UPPER 0x00000200 /* SHM Upper */ +#define B43_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */ +#define B43_MACCTL_PSM_DBG 0x00002000 /* Microcode debugging enabled */ +#define B43_MACCTL_GPOUTSMSK 0x0000C000 /* GPOUT Select Mask */ +#define B43_MACCTL_BE 0x00010000 /* Big Endian mode */ +#define B43_MACCTL_INFRA 0x00020000 /* Infrastructure mode */ +#define B43_MACCTL_AP 0x00040000 /* AccessPoint mode */ +#define B43_MACCTL_RADIOLOCK 0x00080000 /* Radio lock */ +#define B43_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */ +#define B43_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep frames with bad PLCP */ +#define B43_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */ +#define B43_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */ +#define B43_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */ +#define B43_MACCTL_HWPS 0x02000000 /* Hardware Power Saving */ +#define B43_MACCTL_AWAKE 0x04000000 /* Device is awake */ +#define B43_MACCTL_CLOSEDNET 0x08000000 /* Closed net (no SSID bcast) */ +#define B43_MACCTL_TBTTHOLD 0x10000000 /* TBTT Hold */ +#define B43_MACCTL_DISCTXSTAT 0x20000000 /* Discard TX status */ +#define B43_MACCTL_DISCPMQ 0x40000000 /* Discard Power Management Queue */ +#define B43_MACCTL_GMODE 0x80000000 /* G Mode */ + +/* 802.11 core specific TM State Low flags */ +#define B43_TMSLOW_GMODE 0x20000000 /* G Mode Enable */ +#define B43_TMSLOW_PLLREFSEL 0x00200000 /* PLL Frequency Reference Select */ +#define B43_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Control Enable (rev >= 5) */ +#define B43_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */ +#define B43_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */ + +/* 802.11 core specific TM State High flags */ +#define B43_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available (rev >= 5) */ +#define B43_TMSHIGH_APHY 0x00020000 /* A-PHY available (rev >= 5) */ +#define B43_TMSHIGH_GPHY 0x00010000 /* G-PHY available (rev >= 5) */ + +/* Generic-Interrupt reasons. */ +#define B43_IRQ_MAC_SUSPENDED 0x00000001 +#define B43_IRQ_BEACON 0x00000002 +#define B43_IRQ_TBTT_INDI 0x00000004 +#define B43_IRQ_BEACON_TX_OK 0x00000008 +#define B43_IRQ_BEACON_CANCEL 0x00000010 +#define B43_IRQ_ATIM_END 0x00000020 +#define B43_IRQ_PMQ 0x00000040 +#define B43_IRQ_PIO_WORKAROUND 0x00000100 +#define B43_IRQ_MAC_TXERR 0x00000200 +#define B43_IRQ_PHY_TXERR 0x00000800 +#define B43_IRQ_PMEVENT 0x00001000 +#define B43_IRQ_TIMER0 0x00002000 +#define B43_IRQ_TIMER1 0x00004000 +#define B43_IRQ_DMA 0x00008000 +#define B43_IRQ_TXFIFO_FLUSH_OK 0x00010000 +#define B43_IRQ_CCA_MEASURE_OK 0x00020000 +#define B43_IRQ_NOISESAMPLE_OK 0x00040000 +#define B43_IRQ_UCODE_DEBUG 0x08000000 +#define B43_IRQ_RFKILL 0x10000000 +#define B43_IRQ_TX_OK 0x20000000 +#define B43_IRQ_PHY_G_CHANGED 0x40000000 +#define B43_IRQ_TIMEOUT 0x80000000 + +#define B43_IRQ_ALL 0xFFFFFFFF +#define B43_IRQ_MASKTEMPLATE (B43_IRQ_MAC_SUSPENDED | \ + B43_IRQ_BEACON | \ + B43_IRQ_TBTT_INDI | \ + B43_IRQ_ATIM_END | \ + B43_IRQ_PMQ | \ + B43_IRQ_MAC_TXERR | \ + B43_IRQ_PHY_TXERR | \ + B43_IRQ_DMA | \ + B43_IRQ_TXFIFO_FLUSH_OK | \ + B43_IRQ_NOISESAMPLE_OK | \ + B43_IRQ_UCODE_DEBUG | \ + B43_IRQ_RFKILL | \ + B43_IRQ_TX_OK) + +/* Device specific rate values. + * The actual values defined here are (rate_in_mbps * 2). + * Some code depends on this. Don't change it. */ +#define B43_CCK_RATE_1MB 0x02 +#define B43_CCK_RATE_2MB 0x04 +#define B43_CCK_RATE_5MB 0x0B +#define B43_CCK_RATE_11MB 0x16 +#define B43_OFDM_RATE_6MB 0x0C +#define B43_OFDM_RATE_9MB 0x12 +#define B43_OFDM_RATE_12MB 0x18 +#define B43_OFDM_RATE_18MB 0x24 +#define B43_OFDM_RATE_24MB 0x30 +#define B43_OFDM_RATE_36MB 0x48 +#define B43_OFDM_RATE_48MB 0x60 +#define B43_OFDM_RATE_54MB 0x6C +/* Convert a b43 rate value to a rate in 100kbps */ +#define B43_RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2) + +#define B43_DEFAULT_SHORT_RETRY_LIMIT 7 +#define B43_DEFAULT_LONG_RETRY_LIMIT 4 + +/* Max size of a security key */ +#define B43_SEC_KEYSIZE 16 +/* Security algorithms. */ +enum { + B43_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */ + B43_SEC_ALGO_WEP40, + B43_SEC_ALGO_TKIP, + B43_SEC_ALGO_AES, + B43_SEC_ALGO_WEP104, + B43_SEC_ALGO_AES_LEGACY, +}; + +struct b43_dmaring; +struct b43_pioqueue; + +/* The firmware file header */ +#define B43_FW_TYPE_UCODE 'u' +#define B43_FW_TYPE_PCM 'p' +#define B43_FW_TYPE_IV 'i' +struct b43_fw_header { + /* File type */ + u8 type; + /* File format version */ + u8 ver; + u8 __padding[2]; + /* Size of the data. For ucode and PCM this is in bytes. + * For IV this is number-of-ivs. */ + __be32 size; +} __attribute__((__packed__)); + +/* Initial Value file format */ +#define B43_IV_OFFSET_MASK 0x7FFF +#define B43_IV_32BIT 0x8000 +struct b43_iv { + __be16 offset_size; + union { + __be16 d16; + __be32 d32; + } data __attribute__((__packed__)); +} __attribute__((__packed__)); + + +#define B43_PHYMODE(phytype) (1 << (phytype)) +#define B43_PHYMODE_A B43_PHYMODE(B43_PHYTYPE_A) +#define B43_PHYMODE_B B43_PHYMODE(B43_PHYTYPE_B) +#define B43_PHYMODE_G B43_PHYMODE(B43_PHYTYPE_G) + +struct b43_phy { + /* Possible PHYMODEs on this PHY */ + u8 possible_phymodes; + /* GMODE bit enabled? */ + bool gmode; + /* Possible ieee80211 subsystem hwmodes for this PHY. + * Which mode is selected, depends on thr GMODE enabled bit */ +#define B43_MAX_PHYHWMODES 2 + struct ieee80211_hw_mode hwmodes[B43_MAX_PHYHWMODES]; + + /* Analog Type */ + u8 analog; + /* B43_PHYTYPE_ */ + u8 type; + /* PHY revision number. */ + u8 rev; + + /* Radio versioning */ + u16 radio_manuf; /* Radio manufacturer */ + u16 radio_ver; /* Radio version */ + u8 radio_rev; /* Radio revision */ + + bool radio_on; /* Radio switched on/off */ + bool locked; /* Only used in b43_phy_{un}lock() */ + bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */ + + /* ACI (adjacent channel interference) flags. */ + bool aci_enable; + bool aci_wlan_automatic; + bool aci_hw_rssi; + + u16 minlowsig[2]; + u16 minlowsigpos[2]; + + /* TSSI to dBm table in use */ + const s8 *tssi2dbm; + /* Target idle TSSI */ + int tgt_idle_tssi; + /* Current idle TSSI */ + int cur_idle_tssi; + + /* LocalOscillator control values. */ + struct b43_txpower_lo_control *lo_control; + /* Values from b43_calc_loopback_gain() */ + s16 max_lb_gain; /* Maximum Loopback gain in hdB */ + s16 trsw_rx_gain; /* TRSW RX gain in hdB */ + s16 lna_lod_gain; /* LNA lod */ + s16 lna_gain; /* LNA */ + s16 pga_gain; /* PGA */ + + /* PHY lock for core.rev < 3 + * This lock is only used by b43_phy_{un}lock() + */ + spinlock_t lock; + + /* Desired TX power level (in dBm). + * This is set by the user and adjusted in b43_phy_xmitpower(). */ + u8 power_level; + /* A-PHY TX Power control value. */ + u16 txpwr_offset; + + /* Current TX power level attenuation control values */ + struct b43_bbatt bbatt; + struct b43_rfatt rfatt; + u8 tx_control; /* B43_TXCTL_XXX */ +#ifdef CONFIG_B43_DEBUG + bool manual_txpower_control; /* Manual TX-power control enabled? */ +#endif + /* Hardware Power Control enabled? */ + bool hardware_power_control; + + /* Current Interference Mitigation mode */ + int interfmode; + /* Stack of saved values from the Interference Mitigation code. + * Each value in the stack is layed out as follows: + * bit 0-11: offset + * bit 12-15: register ID + * bit 16-32: value + * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT + */ +#define B43_INTERFSTACK_SIZE 26 + u32 interfstack[B43_INTERFSTACK_SIZE]; //FIXME: use a data structure + + /* Saved values from the NRSSI Slope calculation */ + s16 nrssi[2]; + s32 nrssislope; + /* In memory nrssi lookup table. */ + s8 nrssi_lt[64]; + + /* current channel */ + u8 channel; + + u16 lofcal; + + u16 initval; //FIXME rename? +}; + +/* Data structures for DMA transmission, per 80211 core. */ +struct b43_dma { + struct b43_dmaring *tx_ring0; + struct b43_dmaring *tx_ring1; + struct b43_dmaring *tx_ring2; + struct b43_dmaring *tx_ring3; + struct b43_dmaring *tx_ring4; + struct b43_dmaring *tx_ring5; + + struct b43_dmaring *rx_ring0; + struct b43_dmaring *rx_ring3; /* only available on core.rev < 5 */ +}; + +/* Data structures for PIO transmission, per 80211 core. */ +struct b43_pio { + struct b43_pioqueue *queue0; + struct b43_pioqueue *queue1; + struct b43_pioqueue *queue2; + struct b43_pioqueue *queue3; +}; + +/* Context information for a noise calculation (Link Quality). */ +struct b43_noise_calculation { + u8 channel_at_start; + bool calculation_running; + u8 nr_samples; + s8 samples[8][4]; +}; + +struct b43_stats { + u8 link_noise; + /* Store the last TX/RX times here for updating the leds. */ + unsigned long last_tx; + unsigned long last_rx; +}; + +struct b43_key { + /* If keyconf is NULL, this key is disabled. + * keyconf is a cookie. Don't derefenrence it outside of the set_key + * path, because b43 doesn't own it. */ + struct ieee80211_key_conf *keyconf; + u8 algorithm; +}; + +struct b43_wldev; + +/* Data structure for the WLAN parts (802.11 cores) of the b43 chip. */ +struct b43_wl { + /* Pointer to the active wireless device on this chip */ + struct b43_wldev *current_dev; + /* Pointer to the ieee80211 hardware data structure */ + struct ieee80211_hw *hw; + + spinlock_t irq_lock; + struct mutex mutex; + spinlock_t leds_lock; + + /* We can only have one operating interface (802.11 core) + * at a time. General information about this interface follows. + */ + + /* Opaque ID of the operating interface (!= monitor + * interface) from the ieee80211 subsystem. + * Do not modify. + */ + int if_id; + /* The MAC address of the operating interface. */ + u8 mac_addr[ETH_ALEN]; + /* Current BSSID */ + u8 bssid[ETH_ALEN]; + /* Interface type. (IEEE80211_IF_TYPE_XXX) */ + int if_type; + /* Counter of active monitor interfaces. */ + int monitor; + /* Is the card operating in AP, STA or IBSS mode? */ + bool operating; + /* Promisc mode active? + * Note that (monitor != 0) implies promisc. + */ + bool promisc; + /* Stats about the wireless interface */ + struct ieee80211_low_level_stats ieee_stats; + + struct hwrng rng; + u8 rng_initialized; + char rng_name[30 + 1]; + + /* List of all wireless devices on this chip */ + struct list_head devlist; + u8 nr_devs; +}; + +/* Pointers to the firmware data and meta information about it. */ +struct b43_firmware { + /* Microcode */ + const struct firmware *ucode; + /* PCM code */ + const struct firmware *pcm; + /* Initial MMIO values for the firmware */ + const struct firmware *initvals; + /* Initial MMIO values for the firmware, band-specific */ + const struct firmware *initvals_band; + /* Firmware revision */ + u16 rev; + /* Firmware patchlevel */ + u16 patch; +}; + +/* Device (802.11 core) initialization status. */ +enum { + B43_STAT_UNINIT = 0, /* Uninitialized. */ + B43_STAT_INITIALIZED = 1, /* Initialized, but not started, yet. */ + B43_STAT_STARTED = 2, /* Up and running. */ +}; +#define b43_status(wldev) atomic_read(&(wldev)->__init_status) +#define b43_set_status(wldev, stat) do { \ + atomic_set(&(wldev)->__init_status, (stat)); \ + smp_wmb(); \ + } while (0) + +/* XXX--- HOW LOCKING WORKS IN B43 ---XXX + * + * You should always acquire both, wl->mutex and wl->irq_lock unless: + * - You don't need to acquire wl->irq_lock, if the interface is stopped. + * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet + * and packet TX path (and _ONLY_ there.) + */ + +/* Data structure for one wireless device (802.11 core) */ +struct b43_wldev { + struct ssb_device *dev; + struct b43_wl *wl; + + /* The device initialization status. + * Use b43_status() to query. */ + atomic_t __init_status; + /* Saved init status for handling suspend. */ + int suspend_init_status; + + bool __using_pio; /* Internal, use b43_using_pio(). */ + bool bad_frames_preempt; /* Use "Bad Frames Preemption" (default off) */ + bool reg124_set_0x4; /* Some variable to keep track of IRQ stuff. */ + bool short_preamble; /* TRUE, if short preamble is enabled. */ + bool short_slot; /* TRUE, if short slot timing is enabled. */ + bool radio_hw_enable; /* saved state of radio hardware enabled state */ + + /* PHY/Radio device. */ + struct b43_phy phy; + union { + /* DMA engines. */ + struct b43_dma dma; + /* PIO engines. */ + struct b43_pio pio; + }; + + /* Various statistics about the physical device. */ + struct b43_stats stats; + +#define B43_NR_LEDS 4 + struct b43_led leds[B43_NR_LEDS]; + + /* Reason code of the last interrupt. */ + u32 irq_reason; + u32 dma_reason[6]; + /* saved irq enable/disable state bitfield. */ + u32 irq_savedstate; + /* Link Quality calculation context. */ + struct b43_noise_calculation noisecalc; + /* if > 0 MAC is suspended. if == 0 MAC is enabled. */ + int mac_suspended; + + /* Interrupt Service Routine tasklet (bottom-half) */ + struct tasklet_struct isr_tasklet; + + /* Periodic tasks */ + struct delayed_work periodic_work; + unsigned int periodic_state; + + struct work_struct restart_work; + + /* encryption/decryption */ + u16 ktp; /* Key table pointer */ + u8 max_nr_keys; + struct b43_key key[58]; + + /* Cached beacon template while uploading the template. */ + struct sk_buff *cached_beacon; + + /* Firmware data */ + struct b43_firmware fw; + + /* Devicelist in struct b43_wl (all 802.11 cores) */ + struct list_head list; + + /* Debugging stuff follows. */ +#ifdef CONFIG_B43_DEBUG + struct b43_dfsentry *dfsentry; +#endif +}; + +static inline struct b43_wl *hw_to_b43_wl(struct ieee80211_hw *hw) +{ + return hw->priv; +} + +/* Helper function, which returns a boolean. + * TRUE, if PIO is used; FALSE, if DMA is used. + */ +#if defined(CONFIG_B43_DMA) && defined(CONFIG_B43_PIO) +static inline int b43_using_pio(struct b43_wldev *dev) +{ + return dev->__using_pio; +} +#elif defined(CONFIG_B43_DMA) +static inline int b43_using_pio(struct b43_wldev *dev) +{ + return 0; +} +#elif defined(CONFIG_B43_PIO) +static inline int b43_using_pio(struct b43_wldev *dev) +{ + return 1; +} +#else +# error "Using neither DMA nor PIO? Confused..." +#endif + +static inline struct b43_wldev *dev_to_b43_wldev(struct device *dev) +{ + struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); + return ssb_get_drvdata(ssb_dev); +} + +/* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */ +static inline int b43_is_mode(struct b43_wl *wl, int type) +{ + if (type == IEEE80211_IF_TYPE_MNTR) + return !!(wl->monitor); + return (wl->operating && wl->if_type == type); +} + +static inline u16 b43_read16(struct b43_wldev *dev, u16 offset) +{ + return ssb_read16(dev->dev, offset); +} + +static inline void b43_write16(struct b43_wldev *dev, u16 offset, u16 value) +{ + ssb_write16(dev->dev, offset, value); +} + +static inline u32 b43_read32(struct b43_wldev *dev, u16 offset) +{ + return ssb_read32(dev->dev, offset); +} + +static inline void b43_write32(struct b43_wldev *dev, u16 offset, u32 value) +{ + ssb_write32(dev->dev, offset, value); +} + +/* Message printing */ +void b43info(struct b43_wl *wl, const char *fmt, ...) + __attribute__ ((format(printf, 2, 3))); +void b43err(struct b43_wl *wl, const char *fmt, ...) + __attribute__ ((format(printf, 2, 3))); +void b43warn(struct b43_wl *wl, const char *fmt, ...) + __attribute__ ((format(printf, 2, 3))); +#if B43_DEBUG +void b43dbg(struct b43_wl *wl, const char *fmt, ...) + __attribute__ ((format(printf, 2, 3))); +#else /* DEBUG */ +# define b43dbg(wl, fmt...) do { /* nothing */ } while (0) +#endif /* DEBUG */ + +/* A WARN_ON variant that vanishes when b43 debugging is disabled. + * This _also_ evaluates the arg with debugging disabled. */ +#if B43_DEBUG +# define B43_WARN_ON(x) WARN_ON(x) +#else +static inline bool __b43_warn_on_dummy(bool x) { return x; } +# define B43_WARN_ON(x) __b43_warn_on_dummy(unlikely(!!(x))) +#endif + +/** Limit a value between two limits */ +#ifdef limit_value +# undef limit_value +#endif +#define limit_value(value, min, max) \ + ({ \ + typeof(value) __value = (value); \ + typeof(value) __min = (min); \ + typeof(value) __max = (max); \ + if (__value < __min) \ + __value = __min; \ + else if (__value > __max) \ + __value = __max; \ + __value; \ + }) + +/* Convert an integer to a Q5.2 value */ +#define INT_TO_Q52(i) ((i) << 2) +/* Convert a Q5.2 value to an integer (precision loss!) */ +#define Q52_TO_INT(q52) ((q52) >> 2) +/* Macros for printing a value in Q5.2 format */ +#define Q52_FMT "%u.%u" +#define Q52_ARG(q52) Q52_TO_INT(q52), ((((q52) & 0x3) * 100) / 4) + +#endif /* B43_H_ */ diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c new file mode 100644 index 000000000000..f82e3ef9bd73 --- /dev/null +++ b/drivers/net/wireless/b43/debugfs.c @@ -0,0 +1,654 @@ +/* + + Broadcom B43 wireless driver + + debugfs driver debugging code + + Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/fs.h> +#include <linux/debugfs.h> +#include <linux/slab.h> +#include <linux/netdevice.h> +#include <linux/pci.h> +#include <linux/mutex.h> + +#include "b43.h" +#include "main.h" +#include "debugfs.h" +#include "dma.h" +#include "pio.h" +#include "xmit.h" + + +/* The root directory. */ +struct dentry *rootdir; + +struct b43_debugfs_fops { + ssize_t (*read)(struct b43_wldev *dev, char *buf, size_t bufsize); + int (*write)(struct b43_wldev *dev, const char *buf, size_t count); + struct file_operations fops; + /* Offset of struct b43_dfs_file in struct b43_dfsentry */ + size_t file_struct_offset; + /* Take wl->irq_lock before calling read/write? */ + bool take_irqlock; +}; + +static inline +struct b43_dfs_file * fops_to_dfs_file(struct b43_wldev *dev, + const struct b43_debugfs_fops *dfops) +{ + void *p; + + p = dev->dfsentry; + p += dfops->file_struct_offset; + + return p; +} + + +#define fappend(fmt, x...) \ + do { \ + if (bufsize - count) \ + count += snprintf(buf + count, \ + bufsize - count, \ + fmt , ##x); \ + else \ + printk(KERN_ERR "b43: fappend overflow\n"); \ + } while (0) + + +/* wl->irq_lock is locked */ +ssize_t tsf_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + ssize_t count = 0; + u64 tsf; + + b43_tsf_read(dev, &tsf); + fappend("0x%08x%08x\n", + (unsigned int)((tsf & 0xFFFFFFFF00000000ULL) >> 32), + (unsigned int)(tsf & 0xFFFFFFFFULL)); + + return count; +} + +/* wl->irq_lock is locked */ +int tsf_write_file(struct b43_wldev *dev, const char *buf, size_t count) +{ + u64 tsf; + + if (sscanf(buf, "%llu", (unsigned long long *)(&tsf)) != 1) + return -EINVAL; + b43_tsf_write(dev, tsf); + + return 0; +} + +/* wl->irq_lock is locked */ +ssize_t ucode_regs_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + ssize_t count = 0; + int i; + + for (i = 0; i < 64; i++) { + fappend("r%d = 0x%04x\n", i, + b43_shm_read16(dev, B43_SHM_SCRATCH, i)); + } + + return count; +} + +/* wl->irq_lock is locked */ +ssize_t shm_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + ssize_t count = 0; + int i; + u16 tmp; + __le16 *le16buf = (__le16 *)buf; + + for (i = 0; i < 0x1000; i++) { + if (bufsize <= 0) + break; + tmp = b43_shm_read16(dev, B43_SHM_SHARED, 2 * i); + le16buf[i] = cpu_to_le16(tmp); + count += sizeof(tmp); + bufsize -= sizeof(tmp); + } + + return count; +} + +ssize_t txstat_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + struct b43_txstatus_log *log = &dev->dfsentry->txstatlog; + ssize_t count = 0; + unsigned long flags; + int i, idx; + struct b43_txstatus *stat; + + spin_lock_irqsave(&log->lock, flags); + if (log->end < 0) { + fappend("Nothing transmitted, yet\n"); + goto out_unlock; + } + fappend("b43 TX status reports:\n\n" + "index | cookie | seq | phy_stat | frame_count | " + "rts_count | supp_reason | pm_indicated | " + "intermediate | for_ampdu | acked\n" "---\n"); + i = log->end + 1; + idx = 0; + while (1) { + if (i == B43_NR_LOGGED_TXSTATUS) + i = 0; + stat = &(log->log[i]); + if (stat->cookie) { + fappend("%03d | " + "0x%04X | 0x%04X | 0x%02X | " + "0x%X | 0x%X | " + "%u | %u | " + "%u | %u | %u\n", + idx, + stat->cookie, stat->seq, stat->phy_stat, + stat->frame_count, stat->rts_count, + stat->supp_reason, stat->pm_indicated, + stat->intermediate, stat->for_ampdu, + stat->acked); + idx++; + } + if (i == log->end) + break; + i++; + } +out_unlock: + spin_unlock_irqrestore(&log->lock, flags); + + return count; +} + +ssize_t txpower_g_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + ssize_t count = 0; + + if (dev->phy.type != B43_PHYTYPE_G) { + fappend("Device is not a G-PHY\n"); + goto out; + } + fappend("Control: %s\n", dev->phy.manual_txpower_control ? + "MANUAL" : "AUTOMATIC"); + fappend("Baseband attenuation: %u\n", dev->phy.bbatt.att); + fappend("Radio attenuation: %u\n", dev->phy.rfatt.att); + fappend("TX Mixer Gain: %s\n", + (dev->phy.tx_control & B43_TXCTL_TXMIX) ? "ON" : "OFF"); + fappend("PA Gain 2dB: %s\n", + (dev->phy.tx_control & B43_TXCTL_PA2DB) ? "ON" : "OFF"); + fappend("PA Gain 3dB: %s\n", + (dev->phy.tx_control & B43_TXCTL_PA3DB) ? "ON" : "OFF"); + fappend("\n\n"); + fappend("You can write to this file:\n"); + fappend("Writing \"auto\" enables automatic txpower control.\n"); + fappend + ("Writing the attenuation values as \"bbatt rfatt txmix pa2db pa3db\" " + "enables manual txpower control.\n"); + fappend("Example: 5 4 0 0 1\n"); + fappend("Enables manual control with Baseband attenuation 5, " + "Radio attenuation 4, No TX Mixer Gain, " + "No PA Gain 2dB, With PA Gain 3dB.\n"); +out: + return count; +} + +int txpower_g_write_file(struct b43_wldev *dev, const char *buf, size_t count) +{ + unsigned long flags; + unsigned long phy_flags; + int err = 0; + + spin_lock_irqsave(&dev->wl->irq_lock, flags); + if (dev->phy.type != B43_PHYTYPE_G) { + err = -ENODEV; + goto out_unlock; + } + if ((count >= 4) && (memcmp(buf, "auto", 4) == 0)) { + /* Automatic control */ + dev->phy.manual_txpower_control = 0; + b43_phy_xmitpower(dev); + } else { + int bbatt = 0, rfatt = 0, txmix = 0, pa2db = 0, pa3db = 0; + /* Manual control */ + if (sscanf(buf, "%d %d %d %d %d", &bbatt, &rfatt, + &txmix, &pa2db, &pa3db) != 5) { + err = -EINVAL; + goto out_unlock; + } + b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); + dev->phy.manual_txpower_control = 1; + dev->phy.bbatt.att = bbatt; + dev->phy.rfatt.att = rfatt; + dev->phy.tx_control = 0; + if (txmix) + dev->phy.tx_control |= B43_TXCTL_TXMIX; + if (pa2db) + dev->phy.tx_control |= B43_TXCTL_PA2DB; + if (pa3db) + dev->phy.tx_control |= B43_TXCTL_PA3DB; + b43_phy_lock(dev, phy_flags); + b43_radio_lock(dev); + b43_set_txpower_g(dev, &dev->phy.bbatt, + &dev->phy.rfatt, dev->phy.tx_control); + b43_radio_unlock(dev); + b43_phy_unlock(dev, phy_flags); + } +out_unlock: + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); + + return err; +} + +/* wl->irq_lock is locked */ +int restart_write_file(struct b43_wldev *dev, const char *buf, size_t count) +{ + int err = 0; + + if (count > 0 && buf[0] == '1') { + b43_controller_restart(dev, "manually restarted"); + } else + err = -EINVAL; + + return err; +} + +static ssize_t append_lo_table(ssize_t count, char *buf, const size_t bufsize, + struct b43_loctl table[B43_NR_BB][B43_NR_RF]) +{ + unsigned int i, j; + struct b43_loctl *ctl; + + for (i = 0; i < B43_NR_BB; i++) { + for (j = 0; j < B43_NR_RF; j++) { + ctl = &(table[i][j]); + fappend("(bbatt %2u, rfatt %2u) -> " + "(I %+3d, Q %+3d, Used: %d, Calibrated: %d)\n", + i, j, ctl->i, ctl->q, + ctl->used, + b43_loctl_is_calibrated(ctl)); + } + } + + return count; +} + +ssize_t loctls_read_file(struct b43_wldev *dev, char *buf, size_t bufsize) +{ + ssize_t count = 0; + struct b43_txpower_lo_control *lo; + int i, err = 0; + + if (dev->phy.type != B43_PHYTYPE_G) { + fappend("Device is not a G-PHY\n"); + err = -ENODEV; + goto out; + } + lo = dev->phy.lo_control; + fappend("-- Local Oscillator calibration data --\n\n"); + fappend("Measured: %d, Rebuild: %d, HW-power-control: %d\n", + lo->lo_measured, + lo->rebuild, + dev->phy.hardware_power_control); + fappend("TX Bias: 0x%02X, TX Magn: 0x%02X\n", + lo->tx_bias, lo->tx_magn); + fappend("Power Vector: 0x%08X%08X\n", + (unsigned int)((lo->power_vector & 0xFFFFFFFF00000000ULL) >> 32), + (unsigned int)(lo->power_vector & 0x00000000FFFFFFFFULL)); + fappend("\nControl table WITH PADMIX:\n"); + count = append_lo_table(count, buf, bufsize, lo->with_padmix); + fappend("\nControl table WITHOUT PADMIX:\n"); + count = append_lo_table(count, buf, bufsize, lo->no_padmix); + fappend("\nUsed RF attenuation values: Value(WithPadmix flag)\n"); + for (i = 0; i < lo->rfatt_list.len; i++) { + fappend("%u(%d), ", + lo->rfatt_list.list[i].att, + lo->rfatt_list.list[i].with_padmix); + } + fappend("\n"); + fappend("\nUsed Baseband attenuation values:\n"); + for (i = 0; i < lo->bbatt_list.len; i++) { + fappend("%u, ", + lo->bbatt_list.list[i].att); + } + fappend("\n"); + +out: + return err ? err : count; +} + +#undef fappend + +static int b43_debugfs_open(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct b43_wldev *dev; + struct b43_debugfs_fops *dfops; + struct b43_dfs_file *dfile; + ssize_t ret; + char *buf; + const size_t bufsize = 1024 * 128; + const size_t buforder = get_order(bufsize); + int err = 0; + + if (!count) + return 0; + dev = file->private_data; + if (!dev) + return -ENODEV; + + mutex_lock(&dev->wl->mutex); + if (b43_status(dev) < B43_STAT_INITIALIZED) { + err = -ENODEV; + goto out_unlock; + } + + dfops = container_of(file->f_op, struct b43_debugfs_fops, fops); + if (!dfops->read) { + err = -ENOSYS; + goto out_unlock; + } + dfile = fops_to_dfs_file(dev, dfops); + + if (!dfile->buffer) { + buf = (char *)__get_free_pages(GFP_KERNEL, buforder); + if (!buf) { + err = -ENOMEM; + goto out_unlock; + } + memset(buf, 0, bufsize); + if (dfops->take_irqlock) { + spin_lock_irq(&dev->wl->irq_lock); + ret = dfops->read(dev, buf, bufsize); + spin_unlock_irq(&dev->wl->irq_lock); + } else + ret = dfops->read(dev, buf, bufsize); + if (ret <= 0) { + free_pages((unsigned long)buf, buforder); + err = ret; + goto out_unlock; + } + dfile->data_len = ret; + dfile->buffer = buf; + } + + ret = simple_read_from_buffer(userbuf, count, ppos, + dfile->buffer, + dfile->data_len); + if (*ppos >= dfile->data_len) { + free_pages((unsigned long)dfile->buffer, buforder); + dfile->buffer = NULL; + dfile->data_len = 0; + } +out_unlock: + mutex_unlock(&dev->wl->mutex); + + return err ? err : ret; +} + +static ssize_t b43_debugfs_write(struct file *file, + const char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct b43_wldev *dev; + struct b43_debugfs_fops *dfops; + char *buf; + int err = 0; + + if (!count) + return 0; + if (count > PAGE_SIZE) + return -E2BIG; + dev = file->private_data; + if (!dev) + return -ENODEV; + + mutex_lock(&dev->wl->mutex); + if (b43_status(dev) < B43_STAT_INITIALIZED) { + err = -ENODEV; + goto out_unlock; + } + + dfops = container_of(file->f_op, struct b43_debugfs_fops, fops); + if (!dfops->write) { + err = -ENOSYS; + goto out_unlock; + } + + buf = (char *)get_zeroed_page(GFP_KERNEL); + if (!buf) { + err = -ENOMEM; + goto out_unlock; + } + if (copy_from_user(buf, userbuf, count)) { + err = -EFAULT; + goto out_freepage; + } + if (dfops->take_irqlock) { + spin_lock_irq(&dev->wl->irq_lock); + err = dfops->write(dev, buf, count); + spin_unlock_irq(&dev->wl->irq_lock); + } else + err = dfops->write(dev, buf, count); + if (err) + goto out_freepage; + +out_freepage: + free_page((unsigned long)buf); +out_unlock: + mutex_unlock(&dev->wl->mutex); + + return err ? err : count; +} + + +#define B43_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \ + static struct b43_debugfs_fops fops_##name = { \ + .read = _read, \ + .write = _write, \ + .fops = { \ + .open = b43_debugfs_open, \ + .read = b43_debugfs_read, \ + .write = b43_debugfs_write, \ + }, \ + .file_struct_offset = offsetof(struct b43_dfsentry, \ + file_##name), \ + .take_irqlock = _take_irqlock, \ + } + +B43_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1); +B43_DEBUGFS_FOPS(ucode_regs, ucode_regs_read_file, NULL, 1); +B43_DEBUGFS_FOPS(shm, shm_read_file, NULL, 1); +B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0); +B43_DEBUGFS_FOPS(txpower_g, txpower_g_read_file, txpower_g_write_file, 0); +B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1); +B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL, 0); + + +int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature) +{ + return !!(dev->dfsentry && dev->dfsentry->dyn_debug[feature]); +} + +static void b43_remove_dynamic_debug(struct b43_wldev *dev) +{ + struct b43_dfsentry *e = dev->dfsentry; + int i; + + for (i = 0; i < __B43_NR_DYNDBG; i++) + debugfs_remove(e->dyn_debug_dentries[i]); +} + +static void b43_add_dynamic_debug(struct b43_wldev *dev) +{ + struct b43_dfsentry *e = dev->dfsentry; + struct dentry *d; + +#define add_dyn_dbg(name, id, initstate) do { \ + e->dyn_debug[id] = (initstate); \ + d = debugfs_create_bool(name, 0600, e->subdir, \ + &(e->dyn_debug[id])); \ + if (!IS_ERR(d)) \ + e->dyn_debug_dentries[id] = d; \ + } while (0) + + add_dyn_dbg("debug_xmitpower", B43_DBG_XMITPOWER, 0); + add_dyn_dbg("debug_dmaoverflow", B43_DBG_DMAOVERFLOW, 0); + add_dyn_dbg("debug_dmaverbose", B43_DBG_DMAVERBOSE, 0); + add_dyn_dbg("debug_pwork_fast", B43_DBG_PWORK_FAST, 0); + add_dyn_dbg("debug_pwork_stop", B43_DBG_PWORK_STOP, 0); + +#undef add_dyn_dbg +} + +void b43_debugfs_add_device(struct b43_wldev *dev) +{ + struct b43_dfsentry *e; + struct b43_txstatus_log *log; + char devdir[16]; + + B43_WARN_ON(!dev); + e = kzalloc(sizeof(*e), GFP_KERNEL); + if (!e) { + b43err(dev->wl, "debugfs: add device OOM\n"); + return; + } + e->dev = dev; + log = &e->txstatlog; + log->log = kcalloc(B43_NR_LOGGED_TXSTATUS, + sizeof(struct b43_txstatus), GFP_KERNEL); + if (!log->log) { + b43err(dev->wl, "debugfs: add device txstatus OOM\n"); + kfree(e); + return; + } + log->end = -1; + spin_lock_init(&log->lock); + + dev->dfsentry = e; + + snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy)); + e->subdir = debugfs_create_dir(devdir, rootdir); + if (!e->subdir || IS_ERR(e->subdir)) { + if (e->subdir == ERR_PTR(-ENODEV)) { + b43dbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not " + "enabled in kernel config\n"); + } else { + b43err(dev->wl, "debugfs: cannot create %s directory\n", + devdir); + } + dev->dfsentry = NULL; + kfree(log->log); + kfree(e); + return; + } + +#define ADD_FILE(name, mode) \ + do { \ + struct dentry *d; \ + d = debugfs_create_file(__stringify(name), \ + mode, e->subdir, dev, \ + &fops_##name.fops); \ + e->file_##name.dentry = NULL; \ + if (!IS_ERR(d)) \ + e->file_##name.dentry = d; \ + } while (0) + + + ADD_FILE(tsf, 0600); + ADD_FILE(ucode_regs, 0400); + ADD_FILE(shm, 0400); + ADD_FILE(txstat, 0400); + ADD_FILE(txpower_g, 0600); + ADD_FILE(restart, 0200); + ADD_FILE(loctls, 0400); + +#undef ADD_FILE + + b43_add_dynamic_debug(dev); +} + +void b43_debugfs_remove_device(struct b43_wldev *dev) +{ + struct b43_dfsentry *e; + + if (!dev) + return; + e = dev->dfsentry; + if (!e) + return; + b43_remove_dynamic_debug(dev); + + debugfs_remove(e->file_tsf.dentry); + debugfs_remove(e->file_ucode_regs.dentry); + debugfs_remove(e->file_shm.dentry); + debugfs_remove(e->file_txstat.dentry); + debugfs_remove(e->file_txpower_g.dentry); + debugfs_remove(e->file_restart.dentry); + debugfs_remove(e->file_loctls.dentry); + + debugfs_remove(e->subdir); + kfree(e->txstatlog.log); + kfree(e); +} + +void b43_debugfs_log_txstat(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ + struct b43_dfsentry *e = dev->dfsentry; + struct b43_txstatus_log *log; + struct b43_txstatus *cur; + int i; + + if (!e) + return; + log = &e->txstatlog; + B43_WARN_ON(!irqs_disabled()); + spin_lock(&log->lock); + i = log->end + 1; + if (i == B43_NR_LOGGED_TXSTATUS) + i = 0; + log->end = i; + cur = &(log->log[i]); + memcpy(cur, status, sizeof(*cur)); + spin_unlock(&log->lock); +} + +void b43_debugfs_init(void) +{ + rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); + if (IS_ERR(rootdir)) + rootdir = NULL; +} + +void b43_debugfs_exit(void) +{ + debugfs_remove(rootdir); +} diff --git a/drivers/net/wireless/b43/debugfs.h b/drivers/net/wireless/b43/debugfs.h new file mode 100644 index 000000000000..6eebe858db5a --- /dev/null +++ b/drivers/net/wireless/b43/debugfs.h @@ -0,0 +1,89 @@ +#ifndef B43_DEBUGFS_H_ +#define B43_DEBUGFS_H_ + +struct b43_wldev; +struct b43_txstatus; + +enum b43_dyndbg { /* Dynamic debugging features */ + B43_DBG_XMITPOWER, + B43_DBG_DMAOVERFLOW, + B43_DBG_DMAVERBOSE, + B43_DBG_PWORK_FAST, + B43_DBG_PWORK_STOP, + __B43_NR_DYNDBG, +}; + +#ifdef CONFIG_B43_DEBUG + +struct dentry; + +#define B43_NR_LOGGED_TXSTATUS 100 + +struct b43_txstatus_log { + struct b43_txstatus *log; + int end; + spinlock_t lock; +}; + +struct b43_dfs_file { + struct dentry *dentry; + char *buffer; + size_t data_len; +}; + +struct b43_dfsentry { + struct b43_wldev *dev; + struct dentry *subdir; + + struct b43_dfs_file file_tsf; + struct b43_dfs_file file_ucode_regs; + struct b43_dfs_file file_shm; + struct b43_dfs_file file_txstat; + struct b43_dfs_file file_txpower_g; + struct b43_dfs_file file_restart; + struct b43_dfs_file file_loctls; + + struct b43_txstatus_log txstatlog; + + /* Enabled/Disabled list for the dynamic debugging features. */ + u32 dyn_debug[__B43_NR_DYNDBG]; + /* Dentries for the dynamic debugging entries. */ + struct dentry *dyn_debug_dentries[__B43_NR_DYNDBG]; +}; + +int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature); + +void b43_debugfs_init(void); +void b43_debugfs_exit(void); +void b43_debugfs_add_device(struct b43_wldev *dev); +void b43_debugfs_remove_device(struct b43_wldev *dev); +void b43_debugfs_log_txstat(struct b43_wldev *dev, + const struct b43_txstatus *status); + +#else /* CONFIG_B43_DEBUG */ + +static inline int b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature) +{ + return 0; +} + +static inline void b43_debugfs_init(void) +{ +} +static inline void b43_debugfs_exit(void) +{ +} +static inline void b43_debugfs_add_device(struct b43_wldev *dev) +{ +} +static inline void b43_debugfs_remove_device(struct b43_wldev *dev) +{ +} +static inline void b43_debugfs_log_txstat(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ +} + +#endif /* CONFIG_B43_DEBUG */ + +#endif /* B43_DEBUGFS_H_ */ diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c new file mode 100644 index 000000000000..5e8f8ac0f1dd --- /dev/null +++ b/drivers/net/wireless/b43/dma.c @@ -0,0 +1,1494 @@ +/* + + Broadcom B43 wireless driver + + DMA ringbuffer and descriptor allocation/management + + Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de> + + Some code in this file is derived from the b44.c driver + Copyright (C) 2002 David S. Miller + Copyright (C) Pekka Pietikainen + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "dma.h" +#include "main.h" +#include "debugfs.h" +#include "xmit.h" + +#include <linux/dma-mapping.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/skbuff.h> + +/* 32bit DMA ops. */ +static +struct b43_dmadesc_generic *op32_idx2desc(struct b43_dmaring *ring, + int slot, + struct b43_dmadesc_meta **meta) +{ + struct b43_dmadesc32 *desc; + + *meta = &(ring->meta[slot]); + desc = ring->descbase; + desc = &(desc[slot]); + + return (struct b43_dmadesc_generic *)desc; +} + +static void op32_fill_descriptor(struct b43_dmaring *ring, + struct b43_dmadesc_generic *desc, + dma_addr_t dmaaddr, u16 bufsize, + int start, int end, int irq) +{ + struct b43_dmadesc32 *descbase = ring->descbase; + int slot; + u32 ctl; + u32 addr; + u32 addrext; + + slot = (int)(&(desc->dma32) - descbase); + B43_WARN_ON(!(slot >= 0 && slot < ring->nr_slots)); + + addr = (u32) (dmaaddr & ~SSB_DMA_TRANSLATION_MASK); + addrext = (u32) (dmaaddr & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + addr |= ssb_dma_translation(ring->dev->dev); + ctl = (bufsize - ring->frameoffset) + & B43_DMA32_DCTL_BYTECNT; + if (slot == ring->nr_slots - 1) + ctl |= B43_DMA32_DCTL_DTABLEEND; + if (start) + ctl |= B43_DMA32_DCTL_FRAMESTART; + if (end) + ctl |= B43_DMA32_DCTL_FRAMEEND; + if (irq) + ctl |= B43_DMA32_DCTL_IRQ; + ctl |= (addrext << B43_DMA32_DCTL_ADDREXT_SHIFT) + & B43_DMA32_DCTL_ADDREXT_MASK; + + desc->dma32.control = cpu_to_le32(ctl); + desc->dma32.address = cpu_to_le32(addr); +} + +static void op32_poke_tx(struct b43_dmaring *ring, int slot) +{ + b43_dma_write(ring, B43_DMA32_TXINDEX, + (u32) (slot * sizeof(struct b43_dmadesc32))); +} + +static void op32_tx_suspend(struct b43_dmaring *ring) +{ + b43_dma_write(ring, B43_DMA32_TXCTL, b43_dma_read(ring, B43_DMA32_TXCTL) + | B43_DMA32_TXSUSPEND); +} + +static void op32_tx_resume(struct b43_dmaring *ring) +{ + b43_dma_write(ring, B43_DMA32_TXCTL, b43_dma_read(ring, B43_DMA32_TXCTL) + & ~B43_DMA32_TXSUSPEND); +} + +static int op32_get_current_rxslot(struct b43_dmaring *ring) +{ + u32 val; + + val = b43_dma_read(ring, B43_DMA32_RXSTATUS); + val &= B43_DMA32_RXDPTR; + + return (val / sizeof(struct b43_dmadesc32)); +} + +static void op32_set_current_rxslot(struct b43_dmaring *ring, int slot) +{ + b43_dma_write(ring, B43_DMA32_RXINDEX, + (u32) (slot * sizeof(struct b43_dmadesc32))); +} + +static const struct b43_dma_ops dma32_ops = { + .idx2desc = op32_idx2desc, + .fill_descriptor = op32_fill_descriptor, + .poke_tx = op32_poke_tx, + .tx_suspend = op32_tx_suspend, + .tx_resume = op32_tx_resume, + .get_current_rxslot = op32_get_current_rxslot, + .set_current_rxslot = op32_set_current_rxslot, +}; + +/* 64bit DMA ops. */ +static +struct b43_dmadesc_generic *op64_idx2desc(struct b43_dmaring *ring, + int slot, + struct b43_dmadesc_meta **meta) +{ + struct b43_dmadesc64 *desc; + + *meta = &(ring->meta[slot]); + desc = ring->descbase; + desc = &(desc[slot]); + + return (struct b43_dmadesc_generic *)desc; +} + +static void op64_fill_descriptor(struct b43_dmaring *ring, + struct b43_dmadesc_generic *desc, + dma_addr_t dmaaddr, u16 bufsize, + int start, int end, int irq) +{ + struct b43_dmadesc64 *descbase = ring->descbase; + int slot; + u32 ctl0 = 0, ctl1 = 0; + u32 addrlo, addrhi; + u32 addrext; + + slot = (int)(&(desc->dma64) - descbase); + B43_WARN_ON(!(slot >= 0 && slot < ring->nr_slots)); + + addrlo = (u32) (dmaaddr & 0xFFFFFFFF); + addrhi = (((u64) dmaaddr >> 32) & ~SSB_DMA_TRANSLATION_MASK); + addrext = (((u64) dmaaddr >> 32) & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + addrhi |= ssb_dma_translation(ring->dev->dev); + if (slot == ring->nr_slots - 1) + ctl0 |= B43_DMA64_DCTL0_DTABLEEND; + if (start) + ctl0 |= B43_DMA64_DCTL0_FRAMESTART; + if (end) + ctl0 |= B43_DMA64_DCTL0_FRAMEEND; + if (irq) + ctl0 |= B43_DMA64_DCTL0_IRQ; + ctl1 |= (bufsize - ring->frameoffset) + & B43_DMA64_DCTL1_BYTECNT; + ctl1 |= (addrext << B43_DMA64_DCTL1_ADDREXT_SHIFT) + & B43_DMA64_DCTL1_ADDREXT_MASK; + + desc->dma64.control0 = cpu_to_le32(ctl0); + desc->dma64.control1 = cpu_to_le32(ctl1); + desc->dma64.address_low = cpu_to_le32(addrlo); + desc->dma64.address_high = cpu_to_le32(addrhi); +} + +static void op64_poke_tx(struct b43_dmaring *ring, int slot) +{ + b43_dma_write(ring, B43_DMA64_TXINDEX, + (u32) (slot * sizeof(struct b43_dmadesc64))); +} + +static void op64_tx_suspend(struct b43_dmaring *ring) +{ + b43_dma_write(ring, B43_DMA64_TXCTL, b43_dma_read(ring, B43_DMA64_TXCTL) + | B43_DMA64_TXSUSPEND); +} + +static void op64_tx_resume(struct b43_dmaring *ring) +{ + b43_dma_write(ring, B43_DMA64_TXCTL, b43_dma_read(ring, B43_DMA64_TXCTL) + & ~B43_DMA64_TXSUSPEND); +} + +static int op64_get_current_rxslot(struct b43_dmaring *ring) +{ + u32 val; + + val = b43_dma_read(ring, B43_DMA64_RXSTATUS); + val &= B43_DMA64_RXSTATDPTR; + + return (val / sizeof(struct b43_dmadesc64)); +} + +static void op64_set_current_rxslot(struct b43_dmaring *ring, int slot) +{ + b43_dma_write(ring, B43_DMA64_RXINDEX, + (u32) (slot * sizeof(struct b43_dmadesc64))); +} + +static const struct b43_dma_ops dma64_ops = { + .idx2desc = op64_idx2desc, + .fill_descriptor = op64_fill_descriptor, + .poke_tx = op64_poke_tx, + .tx_suspend = op64_tx_suspend, + .tx_resume = op64_tx_resume, + .get_current_rxslot = op64_get_current_rxslot, + .set_current_rxslot = op64_set_current_rxslot, +}; + +static inline int free_slots(struct b43_dmaring *ring) +{ + return (ring->nr_slots - ring->used_slots); +} + +static inline int next_slot(struct b43_dmaring *ring, int slot) +{ + B43_WARN_ON(!(slot >= -1 && slot <= ring->nr_slots - 1)); + if (slot == ring->nr_slots - 1) + return 0; + return slot + 1; +} + +static inline int prev_slot(struct b43_dmaring *ring, int slot) +{ + B43_WARN_ON(!(slot >= 0 && slot <= ring->nr_slots - 1)); + if (slot == 0) + return ring->nr_slots - 1; + return slot - 1; +} + +#ifdef CONFIG_B43_DEBUG +static void update_max_used_slots(struct b43_dmaring *ring, + int current_used_slots) +{ + if (current_used_slots <= ring->max_used_slots) + return; + ring->max_used_slots = current_used_slots; + if (b43_debug(ring->dev, B43_DBG_DMAVERBOSE)) { + b43dbg(ring->dev->wl, + "max_used_slots increased to %d on %s ring %d\n", + ring->max_used_slots, + ring->tx ? "TX" : "RX", ring->index); + } +} +#else +static inline + void update_max_used_slots(struct b43_dmaring *ring, int current_used_slots) +{ +} +#endif /* DEBUG */ + +/* Request a slot for usage. */ +static inline int request_slot(struct b43_dmaring *ring) +{ + int slot; + + B43_WARN_ON(!ring->tx); + B43_WARN_ON(ring->stopped); + B43_WARN_ON(free_slots(ring) == 0); + + slot = next_slot(ring, ring->current_slot); + ring->current_slot = slot; + ring->used_slots++; + + update_max_used_slots(ring, ring->used_slots); + + return slot; +} + +/* Mac80211-queue to b43-ring mapping */ +static struct b43_dmaring *priority_to_txring(struct b43_wldev *dev, + int queue_priority) +{ + struct b43_dmaring *ring; + +/*FIXME: For now we always run on TX-ring-1 */ + return dev->dma.tx_ring1; + + /* 0 = highest priority */ + switch (queue_priority) { + default: + B43_WARN_ON(1); + /* fallthrough */ + case 0: + ring = dev->dma.tx_ring3; + break; + case 1: + ring = dev->dma.tx_ring2; + break; + case 2: + ring = dev->dma.tx_ring1; + break; + case 3: + ring = dev->dma.tx_ring0; + break; + case 4: + ring = dev->dma.tx_ring4; + break; + case 5: + ring = dev->dma.tx_ring5; + break; + } + + return ring; +} + +/* Bcm43xx-ring to mac80211-queue mapping */ +static inline int txring_to_priority(struct b43_dmaring *ring) +{ + static const u8 idx_to_prio[] = { 3, 2, 1, 0, 4, 5, }; + +/*FIXME: have only one queue, for now */ + return 0; + + return idx_to_prio[ring->index]; +} + +u16 b43_dmacontroller_base(int dma64bit, int controller_idx) +{ + static const u16 map64[] = { + B43_MMIO_DMA64_BASE0, + B43_MMIO_DMA64_BASE1, + B43_MMIO_DMA64_BASE2, + B43_MMIO_DMA64_BASE3, + B43_MMIO_DMA64_BASE4, + B43_MMIO_DMA64_BASE5, + }; + static const u16 map32[] = { + B43_MMIO_DMA32_BASE0, + B43_MMIO_DMA32_BASE1, + B43_MMIO_DMA32_BASE2, + B43_MMIO_DMA32_BASE3, + B43_MMIO_DMA32_BASE4, + B43_MMIO_DMA32_BASE5, + }; + + if (dma64bit) { + B43_WARN_ON(!(controller_idx >= 0 && + controller_idx < ARRAY_SIZE(map64))); + return map64[controller_idx]; + } + B43_WARN_ON(!(controller_idx >= 0 && + controller_idx < ARRAY_SIZE(map32))); + return map32[controller_idx]; +} + +static inline + dma_addr_t map_descbuffer(struct b43_dmaring *ring, + unsigned char *buf, size_t len, int tx) +{ + dma_addr_t dmaaddr; + + if (tx) { + dmaaddr = dma_map_single(ring->dev->dev->dev, + buf, len, DMA_TO_DEVICE); + } else { + dmaaddr = dma_map_single(ring->dev->dev->dev, + buf, len, DMA_FROM_DEVICE); + } + + return dmaaddr; +} + +static inline + void unmap_descbuffer(struct b43_dmaring *ring, + dma_addr_t addr, size_t len, int tx) +{ + if (tx) { + dma_unmap_single(ring->dev->dev->dev, addr, len, DMA_TO_DEVICE); + } else { + dma_unmap_single(ring->dev->dev->dev, + addr, len, DMA_FROM_DEVICE); + } +} + +static inline + void sync_descbuffer_for_cpu(struct b43_dmaring *ring, + dma_addr_t addr, size_t len) +{ + B43_WARN_ON(ring->tx); + dma_sync_single_for_cpu(ring->dev->dev->dev, + addr, len, DMA_FROM_DEVICE); +} + +static inline + void sync_descbuffer_for_device(struct b43_dmaring *ring, + dma_addr_t addr, size_t len) +{ + B43_WARN_ON(ring->tx); + dma_sync_single_for_device(ring->dev->dev->dev, + addr, len, DMA_FROM_DEVICE); +} + +static inline + void free_descriptor_buffer(struct b43_dmaring *ring, + struct b43_dmadesc_meta *meta) +{ + if (meta->skb) { + dev_kfree_skb_any(meta->skb); + meta->skb = NULL; + } +} + +static int alloc_ringmemory(struct b43_dmaring *ring) +{ + struct device *dev = ring->dev->dev->dev; + + ring->descbase = dma_alloc_coherent(dev, B43_DMA_RINGMEMSIZE, + &(ring->dmabase), GFP_KERNEL); + if (!ring->descbase) { + b43err(ring->dev->wl, "DMA ringmemory allocation failed\n"); + return -ENOMEM; + } + memset(ring->descbase, 0, B43_DMA_RINGMEMSIZE); + + return 0; +} + +static void free_ringmemory(struct b43_dmaring *ring) +{ + struct device *dev = ring->dev->dev->dev; + + dma_free_coherent(dev, B43_DMA_RINGMEMSIZE, + ring->descbase, ring->dmabase); +} + +/* Reset the RX DMA channel */ +int b43_dmacontroller_rx_reset(struct b43_wldev *dev, u16 mmio_base, int dma64) +{ + int i; + u32 value; + u16 offset; + + might_sleep(); + + offset = dma64 ? B43_DMA64_RXCTL : B43_DMA32_RXCTL; + b43_write32(dev, mmio_base + offset, 0); + for (i = 0; i < 10; i++) { + offset = dma64 ? B43_DMA64_RXSTATUS : B43_DMA32_RXSTATUS; + value = b43_read32(dev, mmio_base + offset); + if (dma64) { + value &= B43_DMA64_RXSTAT; + if (value == B43_DMA64_RXSTAT_DISABLED) { + i = -1; + break; + } + } else { + value &= B43_DMA32_RXSTATE; + if (value == B43_DMA32_RXSTAT_DISABLED) { + i = -1; + break; + } + } + msleep(1); + } + if (i != -1) { + b43err(dev->wl, "DMA RX reset timed out\n"); + return -ENODEV; + } + + return 0; +} + +/* Reset the RX DMA channel */ +int b43_dmacontroller_tx_reset(struct b43_wldev *dev, u16 mmio_base, int dma64) +{ + int i; + u32 value; + u16 offset; + + might_sleep(); + + for (i = 0; i < 10; i++) { + offset = dma64 ? B43_DMA64_TXSTATUS : B43_DMA32_TXSTATUS; + value = b43_read32(dev, mmio_base + offset); + if (dma64) { + value &= B43_DMA64_TXSTAT; + if (value == B43_DMA64_TXSTAT_DISABLED || + value == B43_DMA64_TXSTAT_IDLEWAIT || + value == B43_DMA64_TXSTAT_STOPPED) + break; + } else { + value &= B43_DMA32_TXSTATE; + if (value == B43_DMA32_TXSTAT_DISABLED || + value == B43_DMA32_TXSTAT_IDLEWAIT || + value == B43_DMA32_TXSTAT_STOPPED) + break; + } + msleep(1); + } + offset = dma64 ? B43_DMA64_TXCTL : B43_DMA32_TXCTL; + b43_write32(dev, mmio_base + offset, 0); + for (i = 0; i < 10; i++) { + offset = dma64 ? B43_DMA64_TXSTATUS : B43_DMA32_TXSTATUS; + value = b43_read32(dev, mmio_base + offset); + if (dma64) { + value &= B43_DMA64_TXSTAT; + if (value == B43_DMA64_TXSTAT_DISABLED) { + i = -1; + break; + } + } else { + value &= B43_DMA32_TXSTATE; + if (value == B43_DMA32_TXSTAT_DISABLED) { + i = -1; + break; + } + } + msleep(1); + } + if (i != -1) { + b43err(dev->wl, "DMA TX reset timed out\n"); + return -ENODEV; + } + /* ensure the reset is completed. */ + msleep(1); + + return 0; +} + +static int setup_rx_descbuffer(struct b43_dmaring *ring, + struct b43_dmadesc_generic *desc, + struct b43_dmadesc_meta *meta, gfp_t gfp_flags) +{ + struct b43_rxhdr_fw4 *rxhdr; + struct b43_hwtxstatus *txstat; + dma_addr_t dmaaddr; + struct sk_buff *skb; + + B43_WARN_ON(ring->tx); + + skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags); + if (unlikely(!skb)) + return -ENOMEM; + dmaaddr = map_descbuffer(ring, skb->data, ring->rx_buffersize, 0); + if (dma_mapping_error(dmaaddr)) { + /* ugh. try to realloc in zone_dma */ + gfp_flags |= GFP_DMA; + + dev_kfree_skb_any(skb); + + skb = __dev_alloc_skb(ring->rx_buffersize, gfp_flags); + if (unlikely(!skb)) + return -ENOMEM; + dmaaddr = map_descbuffer(ring, skb->data, + ring->rx_buffersize, 0); + } + + if (dma_mapping_error(dmaaddr)) { + dev_kfree_skb_any(skb); + return -EIO; + } + + meta->skb = skb; + meta->dmaaddr = dmaaddr; + ring->ops->fill_descriptor(ring, desc, dmaaddr, + ring->rx_buffersize, 0, 0, 0); + + rxhdr = (struct b43_rxhdr_fw4 *)(skb->data); + rxhdr->frame_len = 0; + txstat = (struct b43_hwtxstatus *)(skb->data); + txstat->cookie = 0; + + return 0; +} + +/* Allocate the initial descbuffers. + * This is used for an RX ring only. + */ +static int alloc_initial_descbuffers(struct b43_dmaring *ring) +{ + int i, err = -ENOMEM; + struct b43_dmadesc_generic *desc; + struct b43_dmadesc_meta *meta; + + for (i = 0; i < ring->nr_slots; i++) { + desc = ring->ops->idx2desc(ring, i, &meta); + + err = setup_rx_descbuffer(ring, desc, meta, GFP_KERNEL); + if (err) { + b43err(ring->dev->wl, + "Failed to allocate initial descbuffers\n"); + goto err_unwind; + } + } + mb(); + ring->used_slots = ring->nr_slots; + err = 0; + out: + return err; + + err_unwind: + for (i--; i >= 0; i--) { + desc = ring->ops->idx2desc(ring, i, &meta); + + unmap_descbuffer(ring, meta->dmaaddr, ring->rx_buffersize, 0); + dev_kfree_skb(meta->skb); + } + goto out; +} + +/* Do initial setup of the DMA controller. + * Reset the controller, write the ring busaddress + * and switch the "enable" bit on. + */ +static int dmacontroller_setup(struct b43_dmaring *ring) +{ + int err = 0; + u32 value; + u32 addrext; + u32 trans = ssb_dma_translation(ring->dev->dev); + + if (ring->tx) { + if (ring->dma64) { + u64 ringbase = (u64) (ring->dmabase); + + addrext = ((ringbase >> 32) & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + value = B43_DMA64_TXENABLE; + value |= (addrext << B43_DMA64_TXADDREXT_SHIFT) + & B43_DMA64_TXADDREXT_MASK; + b43_dma_write(ring, B43_DMA64_TXCTL, value); + b43_dma_write(ring, B43_DMA64_TXRINGLO, + (ringbase & 0xFFFFFFFF)); + b43_dma_write(ring, B43_DMA64_TXRINGHI, + ((ringbase >> 32) & + ~SSB_DMA_TRANSLATION_MASK) + | trans); + } else { + u32 ringbase = (u32) (ring->dmabase); + + addrext = (ringbase & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + value = B43_DMA32_TXENABLE; + value |= (addrext << B43_DMA32_TXADDREXT_SHIFT) + & B43_DMA32_TXADDREXT_MASK; + b43_dma_write(ring, B43_DMA32_TXCTL, value); + b43_dma_write(ring, B43_DMA32_TXRING, + (ringbase & ~SSB_DMA_TRANSLATION_MASK) + | trans); + } + } else { + err = alloc_initial_descbuffers(ring); + if (err) + goto out; + if (ring->dma64) { + u64 ringbase = (u64) (ring->dmabase); + + addrext = ((ringbase >> 32) & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + value = (ring->frameoffset << B43_DMA64_RXFROFF_SHIFT); + value |= B43_DMA64_RXENABLE; + value |= (addrext << B43_DMA64_RXADDREXT_SHIFT) + & B43_DMA64_RXADDREXT_MASK; + b43_dma_write(ring, B43_DMA64_RXCTL, value); + b43_dma_write(ring, B43_DMA64_RXRINGLO, + (ringbase & 0xFFFFFFFF)); + b43_dma_write(ring, B43_DMA64_RXRINGHI, + ((ringbase >> 32) & + ~SSB_DMA_TRANSLATION_MASK) + | trans); + b43_dma_write(ring, B43_DMA64_RXINDEX, 200); + } else { + u32 ringbase = (u32) (ring->dmabase); + + addrext = (ringbase & SSB_DMA_TRANSLATION_MASK) + >> SSB_DMA_TRANSLATION_SHIFT; + value = (ring->frameoffset << B43_DMA32_RXFROFF_SHIFT); + value |= B43_DMA32_RXENABLE; + value |= (addrext << B43_DMA32_RXADDREXT_SHIFT) + & B43_DMA32_RXADDREXT_MASK; + b43_dma_write(ring, B43_DMA32_RXCTL, value); + b43_dma_write(ring, B43_DMA32_RXRING, + (ringbase & ~SSB_DMA_TRANSLATION_MASK) + | trans); + b43_dma_write(ring, B43_DMA32_RXINDEX, 200); + } + } + + out: + return err; +} + +/* Shutdown the DMA controller. */ +static void dmacontroller_cleanup(struct b43_dmaring *ring) +{ + if (ring->tx) { + b43_dmacontroller_tx_reset(ring->dev, ring->mmio_base, + ring->dma64); + if (ring->dma64) { + b43_dma_write(ring, B43_DMA64_TXRINGLO, 0); + b43_dma_write(ring, B43_DMA64_TXRINGHI, 0); + } else + b43_dma_write(ring, B43_DMA32_TXRING, 0); + } else { + b43_dmacontroller_rx_reset(ring->dev, ring->mmio_base, + ring->dma64); + if (ring->dma64) { + b43_dma_write(ring, B43_DMA64_RXRINGLO, 0); + b43_dma_write(ring, B43_DMA64_RXRINGHI, 0); + } else + b43_dma_write(ring, B43_DMA32_RXRING, 0); + } +} + +static void free_all_descbuffers(struct b43_dmaring *ring) +{ + struct b43_dmadesc_generic *desc; + struct b43_dmadesc_meta *meta; + int i; + + if (!ring->used_slots) + return; + for (i = 0; i < ring->nr_slots; i++) { + desc = ring->ops->idx2desc(ring, i, &meta); + + if (!meta->skb) { + B43_WARN_ON(!ring->tx); + continue; + } + if (ring->tx) { + unmap_descbuffer(ring, meta->dmaaddr, + meta->skb->len, 1); + } else { + unmap_descbuffer(ring, meta->dmaaddr, + ring->rx_buffersize, 0); + } + free_descriptor_buffer(ring, meta); + } +} + +static u64 supported_dma_mask(struct b43_wldev *dev) +{ + u32 tmp; + u16 mmio_base; + + tmp = b43_read32(dev, SSB_TMSHIGH); + if (tmp & SSB_TMSHIGH_DMA64) + return DMA_64BIT_MASK; + mmio_base = b43_dmacontroller_base(0, 0); + b43_write32(dev, mmio_base + B43_DMA32_TXCTL, B43_DMA32_TXADDREXT_MASK); + tmp = b43_read32(dev, mmio_base + B43_DMA32_TXCTL); + if (tmp & B43_DMA32_TXADDREXT_MASK) + return DMA_32BIT_MASK; + + return DMA_30BIT_MASK; +} + +/* Main initialization function. */ +static +struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, + int controller_index, + int for_tx, int dma64) +{ + struct b43_dmaring *ring; + int err; + int nr_slots; + dma_addr_t dma_test; + + ring = kzalloc(sizeof(*ring), GFP_KERNEL); + if (!ring) + goto out; + + nr_slots = B43_RXRING_SLOTS; + if (for_tx) + nr_slots = B43_TXRING_SLOTS; + + ring->meta = kcalloc(nr_slots, sizeof(struct b43_dmadesc_meta), + GFP_KERNEL); + if (!ring->meta) + goto err_kfree_ring; + if (for_tx) { + ring->txhdr_cache = kcalloc(nr_slots, + sizeof(struct b43_txhdr_fw4), + GFP_KERNEL); + if (!ring->txhdr_cache) + goto err_kfree_meta; + + /* test for ability to dma to txhdr_cache */ + dma_test = dma_map_single(dev->dev->dev, + ring->txhdr_cache, + sizeof(struct b43_txhdr_fw4), + DMA_TO_DEVICE); + + if (dma_mapping_error(dma_test)) { + /* ugh realloc */ + kfree(ring->txhdr_cache); + ring->txhdr_cache = kcalloc(nr_slots, + sizeof(struct + b43_txhdr_fw4), + GFP_KERNEL | GFP_DMA); + if (!ring->txhdr_cache) + goto err_kfree_meta; + + dma_test = dma_map_single(dev->dev->dev, + ring->txhdr_cache, + sizeof(struct b43_txhdr_fw4), + DMA_TO_DEVICE); + + if (dma_mapping_error(dma_test)) + goto err_kfree_txhdr_cache; + } + + dma_unmap_single(dev->dev->dev, + dma_test, sizeof(struct b43_txhdr_fw4), + DMA_TO_DEVICE); + } + + ring->dev = dev; + ring->nr_slots = nr_slots; + ring->mmio_base = b43_dmacontroller_base(dma64, controller_index); + ring->index = controller_index; + ring->dma64 = !!dma64; + if (dma64) + ring->ops = &dma64_ops; + else + ring->ops = &dma32_ops; + if (for_tx) { + ring->tx = 1; + ring->current_slot = -1; + } else { + if (ring->index == 0) { + ring->rx_buffersize = B43_DMA0_RX_BUFFERSIZE; + ring->frameoffset = B43_DMA0_RX_FRAMEOFFSET; + } else if (ring->index == 3) { + ring->rx_buffersize = B43_DMA3_RX_BUFFERSIZE; + ring->frameoffset = B43_DMA3_RX_FRAMEOFFSET; + } else + B43_WARN_ON(1); + } + spin_lock_init(&ring->lock); +#ifdef CONFIG_B43_DEBUG + ring->last_injected_overflow = jiffies; +#endif + + err = alloc_ringmemory(ring); + if (err) + goto err_kfree_txhdr_cache; + err = dmacontroller_setup(ring); + if (err) + goto err_free_ringmemory; + + out: + return ring; + + err_free_ringmemory: + free_ringmemory(ring); + err_kfree_txhdr_cache: + kfree(ring->txhdr_cache); + err_kfree_meta: + kfree(ring->meta); + err_kfree_ring: + kfree(ring); + ring = NULL; + goto out; +} + +/* Main cleanup function. */ +static void b43_destroy_dmaring(struct b43_dmaring *ring) +{ + if (!ring) + return; + + b43dbg(ring->dev->wl, "DMA-%s 0x%04X (%s) max used slots: %d/%d\n", + (ring->dma64) ? "64" : "32", + ring->mmio_base, + (ring->tx) ? "TX" : "RX", ring->max_used_slots, ring->nr_slots); + /* Device IRQs are disabled prior entering this function, + * so no need to take care of concurrency with rx handler stuff. + */ + dmacontroller_cleanup(ring); + free_all_descbuffers(ring); + free_ringmemory(ring); + + kfree(ring->txhdr_cache); + kfree(ring->meta); + kfree(ring); +} + +void b43_dma_free(struct b43_wldev *dev) +{ + struct b43_dma *dma; + + if (b43_using_pio(dev)) + return; + dma = &dev->dma; + + b43_destroy_dmaring(dma->rx_ring3); + dma->rx_ring3 = NULL; + b43_destroy_dmaring(dma->rx_ring0); + dma->rx_ring0 = NULL; + + b43_destroy_dmaring(dma->tx_ring5); + dma->tx_ring5 = NULL; + b43_destroy_dmaring(dma->tx_ring4); + dma->tx_ring4 = NULL; + b43_destroy_dmaring(dma->tx_ring3); + dma->tx_ring3 = NULL; + b43_destroy_dmaring(dma->tx_ring2); + dma->tx_ring2 = NULL; + b43_destroy_dmaring(dma->tx_ring1); + dma->tx_ring1 = NULL; + b43_destroy_dmaring(dma->tx_ring0); + dma->tx_ring0 = NULL; +} + +int b43_dma_init(struct b43_wldev *dev) +{ + struct b43_dma *dma = &dev->dma; + struct b43_dmaring *ring; + int err; + u64 dmamask; + int dma64 = 0; + + dmamask = supported_dma_mask(dev); + if (dmamask == DMA_64BIT_MASK) + dma64 = 1; + + err = ssb_dma_set_mask(dev->dev, dmamask); + if (err) { +#ifdef B43_PIO + b43warn(dev->wl, "DMA for this device not supported. " + "Falling back to PIO\n"); + dev->__using_pio = 1; + return -EAGAIN; +#else + b43err(dev->wl, "DMA for this device not supported and " + "no PIO support compiled in\n"); + return -EOPNOTSUPP; +#endif + } + + err = -ENOMEM; + /* setup TX DMA channels. */ + ring = b43_setup_dmaring(dev, 0, 1, dma64); + if (!ring) + goto out; + dma->tx_ring0 = ring; + + ring = b43_setup_dmaring(dev, 1, 1, dma64); + if (!ring) + goto err_destroy_tx0; + dma->tx_ring1 = ring; + + ring = b43_setup_dmaring(dev, 2, 1, dma64); + if (!ring) + goto err_destroy_tx1; + dma->tx_ring2 = ring; + + ring = b43_setup_dmaring(dev, 3, 1, dma64); + if (!ring) + goto err_destroy_tx2; + dma->tx_ring3 = ring; + + ring = b43_setup_dmaring(dev, 4, 1, dma64); + if (!ring) + goto err_destroy_tx3; + dma->tx_ring4 = ring; + + ring = b43_setup_dmaring(dev, 5, 1, dma64); + if (!ring) + goto err_destroy_tx4; + dma->tx_ring5 = ring; + + /* setup RX DMA channels. */ + ring = b43_setup_dmaring(dev, 0, 0, dma64); + if (!ring) + goto err_destroy_tx5; + dma->rx_ring0 = ring; + + if (dev->dev->id.revision < 5) { + ring = b43_setup_dmaring(dev, 3, 0, dma64); + if (!ring) + goto err_destroy_rx0; + dma->rx_ring3 = ring; + } + + b43dbg(dev->wl, "%d-bit DMA initialized\n", + (dmamask == DMA_64BIT_MASK) ? 64 : + (dmamask == DMA_32BIT_MASK) ? 32 : 30); + err = 0; + out: + return err; + + err_destroy_rx0: + b43_destroy_dmaring(dma->rx_ring0); + dma->rx_ring0 = NULL; + err_destroy_tx5: + b43_destroy_dmaring(dma->tx_ring5); + dma->tx_ring5 = NULL; + err_destroy_tx4: + b43_destroy_dmaring(dma->tx_ring4); + dma->tx_ring4 = NULL; + err_destroy_tx3: + b43_destroy_dmaring(dma->tx_ring3); + dma->tx_ring3 = NULL; + err_destroy_tx2: + b43_destroy_dmaring(dma->tx_ring2); + dma->tx_ring2 = NULL; + err_destroy_tx1: + b43_destroy_dmaring(dma->tx_ring1); + dma->tx_ring1 = NULL; + err_destroy_tx0: + b43_destroy_dmaring(dma->tx_ring0); + dma->tx_ring0 = NULL; + goto out; +} + +/* Generate a cookie for the TX header. */ +static u16 generate_cookie(struct b43_dmaring *ring, int slot) +{ + u16 cookie = 0x1000; + + /* Use the upper 4 bits of the cookie as + * DMA controller ID and store the slot number + * in the lower 12 bits. + * Note that the cookie must never be 0, as this + * is a special value used in RX path. + */ + switch (ring->index) { + case 0: + cookie = 0xA000; + break; + case 1: + cookie = 0xB000; + break; + case 2: + cookie = 0xC000; + break; + case 3: + cookie = 0xD000; + break; + case 4: + cookie = 0xE000; + break; + case 5: + cookie = 0xF000; + break; + } + B43_WARN_ON(slot & ~0x0FFF); + cookie |= (u16) slot; + + return cookie; +} + +/* Inspect a cookie and find out to which controller/slot it belongs. */ +static +struct b43_dmaring *parse_cookie(struct b43_wldev *dev, u16 cookie, int *slot) +{ + struct b43_dma *dma = &dev->dma; + struct b43_dmaring *ring = NULL; + + switch (cookie & 0xF000) { + case 0xA000: + ring = dma->tx_ring0; + break; + case 0xB000: + ring = dma->tx_ring1; + break; + case 0xC000: + ring = dma->tx_ring2; + break; + case 0xD000: + ring = dma->tx_ring3; + break; + case 0xE000: + ring = dma->tx_ring4; + break; + case 0xF000: + ring = dma->tx_ring5; + break; + default: + B43_WARN_ON(1); + } + *slot = (cookie & 0x0FFF); + B43_WARN_ON(!(ring && *slot >= 0 && *slot < ring->nr_slots)); + + return ring; +} + +static int dma_tx_fragment(struct b43_dmaring *ring, + struct sk_buff *skb, + struct ieee80211_tx_control *ctl) +{ + const struct b43_dma_ops *ops = ring->ops; + u8 *header; + int slot; + int err; + struct b43_dmadesc_generic *desc; + struct b43_dmadesc_meta *meta; + struct b43_dmadesc_meta *meta_hdr; + struct sk_buff *bounce_skb; + +#define SLOTS_PER_PACKET 2 + B43_WARN_ON(skb_shinfo(skb)->nr_frags); + + /* Get a slot for the header. */ + slot = request_slot(ring); + desc = ops->idx2desc(ring, slot, &meta_hdr); + memset(meta_hdr, 0, sizeof(*meta_hdr)); + + header = &(ring->txhdr_cache[slot * sizeof(struct b43_txhdr_fw4)]); + b43_generate_txhdr(ring->dev, header, + skb->data, skb->len, ctl, + generate_cookie(ring, slot)); + + meta_hdr->dmaaddr = map_descbuffer(ring, (unsigned char *)header, + sizeof(struct b43_txhdr_fw4), 1); + if (dma_mapping_error(meta_hdr->dmaaddr)) + return -EIO; + ops->fill_descriptor(ring, desc, meta_hdr->dmaaddr, + sizeof(struct b43_txhdr_fw4), 1, 0, 0); + + /* Get a slot for the payload. */ + slot = request_slot(ring); + desc = ops->idx2desc(ring, slot, &meta); + memset(meta, 0, sizeof(*meta)); + + memcpy(&meta->txstat.control, ctl, sizeof(*ctl)); + meta->skb = skb; + meta->is_last_fragment = 1; + + meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1); + /* create a bounce buffer in zone_dma on mapping failure. */ + if (dma_mapping_error(meta->dmaaddr)) { + bounce_skb = __dev_alloc_skb(skb->len, GFP_ATOMIC | GFP_DMA); + if (!bounce_skb) { + err = -ENOMEM; + goto out_unmap_hdr; + } + + memcpy(skb_put(bounce_skb, skb->len), skb->data, skb->len); + dev_kfree_skb_any(skb); + skb = bounce_skb; + meta->skb = skb; + meta->dmaaddr = map_descbuffer(ring, skb->data, skb->len, 1); + if (dma_mapping_error(meta->dmaaddr)) { + err = -EIO; + goto out_free_bounce; + } + } + + ops->fill_descriptor(ring, desc, meta->dmaaddr, skb->len, 0, 1, 1); + + /* Now transfer the whole frame. */ + wmb(); + ops->poke_tx(ring, next_slot(ring, slot)); + return 0; + + out_free_bounce: + dev_kfree_skb_any(skb); + out_unmap_hdr: + unmap_descbuffer(ring, meta_hdr->dmaaddr, + sizeof(struct b43_txhdr_fw4), 1); + return err; +} + +static inline int should_inject_overflow(struct b43_dmaring *ring) +{ +#ifdef CONFIG_B43_DEBUG + if (unlikely(b43_debug(ring->dev, B43_DBG_DMAOVERFLOW))) { + /* Check if we should inject another ringbuffer overflow + * to test handling of this situation in the stack. */ + unsigned long next_overflow; + + next_overflow = ring->last_injected_overflow + HZ; + if (time_after(jiffies, next_overflow)) { + ring->last_injected_overflow = jiffies; + b43dbg(ring->dev->wl, + "Injecting TX ring overflow on " + "DMA controller %d\n", ring->index); + return 1; + } + } +#endif /* CONFIG_B43_DEBUG */ + return 0; +} + +int b43_dma_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl) +{ + struct b43_dmaring *ring; + int err = 0; + unsigned long flags; + + ring = priority_to_txring(dev, ctl->queue); + spin_lock_irqsave(&ring->lock, flags); + B43_WARN_ON(!ring->tx); + if (unlikely(free_slots(ring) < SLOTS_PER_PACKET)) { + b43warn(dev->wl, "DMA queue overflow\n"); + err = -ENOSPC; + goto out_unlock; + } + /* Check if the queue was stopped in mac80211, + * but we got called nevertheless. + * That would be a mac80211 bug. */ + B43_WARN_ON(ring->stopped); + + err = dma_tx_fragment(ring, skb, ctl); + if (unlikely(err)) { + b43err(dev->wl, "DMA tx mapping failure\n"); + goto out_unlock; + } + ring->nr_tx_packets++; + if ((free_slots(ring) < SLOTS_PER_PACKET) || + should_inject_overflow(ring)) { + /* This TX ring is full. */ + ieee80211_stop_queue(dev->wl->hw, txring_to_priority(ring)); + ring->stopped = 1; + if (b43_debug(dev, B43_DBG_DMAVERBOSE)) { + b43dbg(dev->wl, "Stopped TX ring %d\n", ring->index); + } + } + out_unlock: + spin_unlock_irqrestore(&ring->lock, flags); + + return err; +} + +void b43_dma_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ + const struct b43_dma_ops *ops; + struct b43_dmaring *ring; + struct b43_dmadesc_generic *desc; + struct b43_dmadesc_meta *meta; + int slot; + + ring = parse_cookie(dev, status->cookie, &slot); + if (unlikely(!ring)) + return; + B43_WARN_ON(!irqs_disabled()); + spin_lock(&ring->lock); + + B43_WARN_ON(!ring->tx); + ops = ring->ops; + while (1) { + B43_WARN_ON(!(slot >= 0 && slot < ring->nr_slots)); + desc = ops->idx2desc(ring, slot, &meta); + + if (meta->skb) + unmap_descbuffer(ring, meta->dmaaddr, meta->skb->len, + 1); + else + unmap_descbuffer(ring, meta->dmaaddr, + sizeof(struct b43_txhdr_fw4), 1); + + if (meta->is_last_fragment) { + B43_WARN_ON(!meta->skb); + /* Call back to inform the ieee80211 subsystem about the + * status of the transmission. + * Some fields of txstat are already filled in dma_tx(). + */ + if (status->acked) { + meta->txstat.flags |= IEEE80211_TX_STATUS_ACK; + } else { + if (!(meta->txstat.control.flags + & IEEE80211_TXCTL_NO_ACK)) + meta->txstat.excessive_retries = 1; + } + if (status->frame_count == 0) { + /* The frame was not transmitted at all. */ + meta->txstat.retry_count = 0; + } else + meta->txstat.retry_count = status->frame_count - 1; + ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb, + &(meta->txstat)); + /* skb is freed by ieee80211_tx_status_irqsafe() */ + meta->skb = NULL; + } else { + /* No need to call free_descriptor_buffer here, as + * this is only the txhdr, which is not allocated. + */ + B43_WARN_ON(meta->skb); + } + + /* Everything unmapped and free'd. So it's not used anymore. */ + ring->used_slots--; + + if (meta->is_last_fragment) + break; + slot = next_slot(ring, slot); + } + dev->stats.last_tx = jiffies; + if (ring->stopped) { + B43_WARN_ON(free_slots(ring) < SLOTS_PER_PACKET); + ieee80211_wake_queue(dev->wl->hw, txring_to_priority(ring)); + ring->stopped = 0; + if (b43_debug(dev, B43_DBG_DMAVERBOSE)) { + b43dbg(dev->wl, "Woke up TX ring %d\n", ring->index); + } + } + + spin_unlock(&ring->lock); +} + +void b43_dma_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats) +{ + const int nr_queues = dev->wl->hw->queues; + struct b43_dmaring *ring; + struct ieee80211_tx_queue_stats_data *data; + unsigned long flags; + int i; + + for (i = 0; i < nr_queues; i++) { + data = &(stats->data[i]); + ring = priority_to_txring(dev, i); + + spin_lock_irqsave(&ring->lock, flags); + data->len = ring->used_slots / SLOTS_PER_PACKET; + data->limit = ring->nr_slots / SLOTS_PER_PACKET; + data->count = ring->nr_tx_packets; + spin_unlock_irqrestore(&ring->lock, flags); + } +} + +static void dma_rx(struct b43_dmaring *ring, int *slot) +{ + const struct b43_dma_ops *ops = ring->ops; + struct b43_dmadesc_generic *desc; + struct b43_dmadesc_meta *meta; + struct b43_rxhdr_fw4 *rxhdr; + struct sk_buff *skb; + u16 len; + int err; + dma_addr_t dmaaddr; + + desc = ops->idx2desc(ring, *slot, &meta); + + sync_descbuffer_for_cpu(ring, meta->dmaaddr, ring->rx_buffersize); + skb = meta->skb; + + if (ring->index == 3) { + /* We received an xmit status. */ + struct b43_hwtxstatus *hw = (struct b43_hwtxstatus *)skb->data; + int i = 0; + + while (hw->cookie == 0) { + if (i > 100) + break; + i++; + udelay(2); + barrier(); + } + b43_handle_hwtxstatus(ring->dev, hw); + /* recycle the descriptor buffer. */ + sync_descbuffer_for_device(ring, meta->dmaaddr, + ring->rx_buffersize); + + return; + } + rxhdr = (struct b43_rxhdr_fw4 *)skb->data; + len = le16_to_cpu(rxhdr->frame_len); + if (len == 0) { + int i = 0; + + do { + udelay(2); + barrier(); + len = le16_to_cpu(rxhdr->frame_len); + } while (len == 0 && i++ < 5); + if (unlikely(len == 0)) { + /* recycle the descriptor buffer. */ + sync_descbuffer_for_device(ring, meta->dmaaddr, + ring->rx_buffersize); + goto drop; + } + } + if (unlikely(len > ring->rx_buffersize)) { + /* The data did not fit into one descriptor buffer + * and is split over multiple buffers. + * This should never happen, as we try to allocate buffers + * big enough. So simply ignore this packet. + */ + int cnt = 0; + s32 tmp = len; + + while (1) { + desc = ops->idx2desc(ring, *slot, &meta); + /* recycle the descriptor buffer. */ + sync_descbuffer_for_device(ring, meta->dmaaddr, + ring->rx_buffersize); + *slot = next_slot(ring, *slot); + cnt++; + tmp -= ring->rx_buffersize; + if (tmp <= 0) + break; + } + b43err(ring->dev->wl, "DMA RX buffer too small " + "(len: %u, buffer: %u, nr-dropped: %d)\n", + len, ring->rx_buffersize, cnt); + goto drop; + } + + dmaaddr = meta->dmaaddr; + err = setup_rx_descbuffer(ring, desc, meta, GFP_ATOMIC); + if (unlikely(err)) { + b43dbg(ring->dev->wl, "DMA RX: setup_rx_descbuffer() failed\n"); + sync_descbuffer_for_device(ring, dmaaddr, ring->rx_buffersize); + goto drop; + } + + unmap_descbuffer(ring, dmaaddr, ring->rx_buffersize, 0); + skb_put(skb, len + ring->frameoffset); + skb_pull(skb, ring->frameoffset); + + b43_rx(ring->dev, skb, rxhdr); + drop: + return; +} + +void b43_dma_rx(struct b43_dmaring *ring) +{ + const struct b43_dma_ops *ops = ring->ops; + int slot, current_slot; + int used_slots = 0; + + B43_WARN_ON(ring->tx); + current_slot = ops->get_current_rxslot(ring); + B43_WARN_ON(!(current_slot >= 0 && current_slot < ring->nr_slots)); + + slot = ring->current_slot; + for (; slot != current_slot; slot = next_slot(ring, slot)) { + dma_rx(ring, &slot); + update_max_used_slots(ring, ++used_slots); + } + ops->set_current_rxslot(ring, slot); + ring->current_slot = slot; +} + +static void b43_dma_tx_suspend_ring(struct b43_dmaring *ring) +{ + unsigned long flags; + + spin_lock_irqsave(&ring->lock, flags); + B43_WARN_ON(!ring->tx); + ring->ops->tx_suspend(ring); + spin_unlock_irqrestore(&ring->lock, flags); +} + +static void b43_dma_tx_resume_ring(struct b43_dmaring *ring) +{ + unsigned long flags; + + spin_lock_irqsave(&ring->lock, flags); + B43_WARN_ON(!ring->tx); + ring->ops->tx_resume(ring); + spin_unlock_irqrestore(&ring->lock, flags); +} + +void b43_dma_tx_suspend(struct b43_wldev *dev) +{ + b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); + b43_dma_tx_suspend_ring(dev->dma.tx_ring0); + b43_dma_tx_suspend_ring(dev->dma.tx_ring1); + b43_dma_tx_suspend_ring(dev->dma.tx_ring2); + b43_dma_tx_suspend_ring(dev->dma.tx_ring3); + b43_dma_tx_suspend_ring(dev->dma.tx_ring4); + b43_dma_tx_suspend_ring(dev->dma.tx_ring5); +} + +void b43_dma_tx_resume(struct b43_wldev *dev) +{ + b43_dma_tx_resume_ring(dev->dma.tx_ring5); + b43_dma_tx_resume_ring(dev->dma.tx_ring4); + b43_dma_tx_resume_ring(dev->dma.tx_ring3); + b43_dma_tx_resume_ring(dev->dma.tx_ring2); + b43_dma_tx_resume_ring(dev->dma.tx_ring1); + b43_dma_tx_resume_ring(dev->dma.tx_ring0); + b43_power_saving_ctl_bits(dev, 0); +} diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h new file mode 100644 index 000000000000..3eed185be725 --- /dev/null +++ b/drivers/net/wireless/b43/dma.h @@ -0,0 +1,337 @@ +#ifndef B43_DMA_H_ +#define B43_DMA_H_ + +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/workqueue.h> +#include <linux/linkage.h> +#include <asm/atomic.h> + +#include "b43.h" + +/* DMA-Interrupt reasons. */ +#define B43_DMAIRQ_FATALMASK ((1 << 10) | (1 << 11) | (1 << 12) \ + | (1 << 14) | (1 << 15)) +#define B43_DMAIRQ_NONFATALMASK (1 << 13) +#define B43_DMAIRQ_RX_DONE (1 << 16) + +/*** 32-bit DMA Engine. ***/ + +/* 32-bit DMA controller registers. */ +#define B43_DMA32_TXCTL 0x00 +#define B43_DMA32_TXENABLE 0x00000001 +#define B43_DMA32_TXSUSPEND 0x00000002 +#define B43_DMA32_TXLOOPBACK 0x00000004 +#define B43_DMA32_TXFLUSH 0x00000010 +#define B43_DMA32_TXADDREXT_MASK 0x00030000 +#define B43_DMA32_TXADDREXT_SHIFT 16 +#define B43_DMA32_TXRING 0x04 +#define B43_DMA32_TXINDEX 0x08 +#define B43_DMA32_TXSTATUS 0x0C +#define B43_DMA32_TXDPTR 0x00000FFF +#define B43_DMA32_TXSTATE 0x0000F000 +#define B43_DMA32_TXSTAT_DISABLED 0x00000000 +#define B43_DMA32_TXSTAT_ACTIVE 0x00001000 +#define B43_DMA32_TXSTAT_IDLEWAIT 0x00002000 +#define B43_DMA32_TXSTAT_STOPPED 0x00003000 +#define B43_DMA32_TXSTAT_SUSP 0x00004000 +#define B43_DMA32_TXERROR 0x000F0000 +#define B43_DMA32_TXERR_NOERR 0x00000000 +#define B43_DMA32_TXERR_PROT 0x00010000 +#define B43_DMA32_TXERR_UNDERRUN 0x00020000 +#define B43_DMA32_TXERR_BUFREAD 0x00030000 +#define B43_DMA32_TXERR_DESCREAD 0x00040000 +#define B43_DMA32_TXACTIVE 0xFFF00000 +#define B43_DMA32_RXCTL 0x10 +#define B43_DMA32_RXENABLE 0x00000001 +#define B43_DMA32_RXFROFF_MASK 0x000000FE +#define B43_DMA32_RXFROFF_SHIFT 1 +#define B43_DMA32_RXDIRECTFIFO 0x00000100 +#define B43_DMA32_RXADDREXT_MASK 0x00030000 +#define B43_DMA32_RXADDREXT_SHIFT 16 +#define B43_DMA32_RXRING 0x14 +#define B43_DMA32_RXINDEX 0x18 +#define B43_DMA32_RXSTATUS 0x1C +#define B43_DMA32_RXDPTR 0x00000FFF +#define B43_DMA32_RXSTATE 0x0000F000 +#define B43_DMA32_RXSTAT_DISABLED 0x00000000 +#define B43_DMA32_RXSTAT_ACTIVE 0x00001000 +#define B43_DMA32_RXSTAT_IDLEWAIT 0x00002000 +#define B43_DMA32_RXSTAT_STOPPED 0x00003000 +#define B43_DMA32_RXERROR 0x000F0000 +#define B43_DMA32_RXERR_NOERR 0x00000000 +#define B43_DMA32_RXERR_PROT 0x00010000 +#define B43_DMA32_RXERR_OVERFLOW 0x00020000 +#define B43_DMA32_RXERR_BUFWRITE 0x00030000 +#define B43_DMA32_RXERR_DESCREAD 0x00040000 +#define B43_DMA32_RXACTIVE 0xFFF00000 + +/* 32-bit DMA descriptor. */ +struct b43_dmadesc32 { + __le32 control; + __le32 address; +} __attribute__ ((__packed__)); +#define B43_DMA32_DCTL_BYTECNT 0x00001FFF +#define B43_DMA32_DCTL_ADDREXT_MASK 0x00030000 +#define B43_DMA32_DCTL_ADDREXT_SHIFT 16 +#define B43_DMA32_DCTL_DTABLEEND 0x10000000 +#define B43_DMA32_DCTL_IRQ 0x20000000 +#define B43_DMA32_DCTL_FRAMEEND 0x40000000 +#define B43_DMA32_DCTL_FRAMESTART 0x80000000 + +/*** 64-bit DMA Engine. ***/ + +/* 64-bit DMA controller registers. */ +#define B43_DMA64_TXCTL 0x00 +#define B43_DMA64_TXENABLE 0x00000001 +#define B43_DMA64_TXSUSPEND 0x00000002 +#define B43_DMA64_TXLOOPBACK 0x00000004 +#define B43_DMA64_TXFLUSH 0x00000010 +#define B43_DMA64_TXADDREXT_MASK 0x00030000 +#define B43_DMA64_TXADDREXT_SHIFT 16 +#define B43_DMA64_TXINDEX 0x04 +#define B43_DMA64_TXRINGLO 0x08 +#define B43_DMA64_TXRINGHI 0x0C +#define B43_DMA64_TXSTATUS 0x10 +#define B43_DMA64_TXSTATDPTR 0x00001FFF +#define B43_DMA64_TXSTAT 0xF0000000 +#define B43_DMA64_TXSTAT_DISABLED 0x00000000 +#define B43_DMA64_TXSTAT_ACTIVE 0x10000000 +#define B43_DMA64_TXSTAT_IDLEWAIT 0x20000000 +#define B43_DMA64_TXSTAT_STOPPED 0x30000000 +#define B43_DMA64_TXSTAT_SUSP 0x40000000 +#define B43_DMA64_TXERROR 0x14 +#define B43_DMA64_TXERRDPTR 0x0001FFFF +#define B43_DMA64_TXERR 0xF0000000 +#define B43_DMA64_TXERR_NOERR 0x00000000 +#define B43_DMA64_TXERR_PROT 0x10000000 +#define B43_DMA64_TXERR_UNDERRUN 0x20000000 +#define B43_DMA64_TXERR_TRANSFER 0x30000000 +#define B43_DMA64_TXERR_DESCREAD 0x40000000 +#define B43_DMA64_TXERR_CORE 0x50000000 +#define B43_DMA64_RXCTL 0x20 +#define B43_DMA64_RXENABLE 0x00000001 +#define B43_DMA64_RXFROFF_MASK 0x000000FE +#define B43_DMA64_RXFROFF_SHIFT 1 +#define B43_DMA64_RXDIRECTFIFO 0x00000100 +#define B43_DMA64_RXADDREXT_MASK 0x00030000 +#define B43_DMA64_RXADDREXT_SHIFT 16 +#define B43_DMA64_RXINDEX 0x24 +#define B43_DMA64_RXRINGLO 0x28 +#define B43_DMA64_RXRINGHI 0x2C +#define B43_DMA64_RXSTATUS 0x30 +#define B43_DMA64_RXSTATDPTR 0x00001FFF +#define B43_DMA64_RXSTAT 0xF0000000 +#define B43_DMA64_RXSTAT_DISABLED 0x00000000 +#define B43_DMA64_RXSTAT_ACTIVE 0x10000000 +#define B43_DMA64_RXSTAT_IDLEWAIT 0x20000000 +#define B43_DMA64_RXSTAT_STOPPED 0x30000000 +#define B43_DMA64_RXSTAT_SUSP 0x40000000 +#define B43_DMA64_RXERROR 0x34 +#define B43_DMA64_RXERRDPTR 0x0001FFFF +#define B43_DMA64_RXERR 0xF0000000 +#define B43_DMA64_RXERR_NOERR 0x00000000 +#define B43_DMA64_RXERR_PROT 0x10000000 +#define B43_DMA64_RXERR_UNDERRUN 0x20000000 +#define B43_DMA64_RXERR_TRANSFER 0x30000000 +#define B43_DMA64_RXERR_DESCREAD 0x40000000 +#define B43_DMA64_RXERR_CORE 0x50000000 + +/* 64-bit DMA descriptor. */ +struct b43_dmadesc64 { + __le32 control0; + __le32 control1; + __le32 address_low; + __le32 address_high; +} __attribute__ ((__packed__)); +#define B43_DMA64_DCTL0_DTABLEEND 0x10000000 +#define B43_DMA64_DCTL0_IRQ 0x20000000 +#define B43_DMA64_DCTL0_FRAMEEND 0x40000000 +#define B43_DMA64_DCTL0_FRAMESTART 0x80000000 +#define B43_DMA64_DCTL1_BYTECNT 0x00001FFF +#define B43_DMA64_DCTL1_ADDREXT_MASK 0x00030000 +#define B43_DMA64_DCTL1_ADDREXT_SHIFT 16 + +struct b43_dmadesc_generic { + union { + struct b43_dmadesc32 dma32; + struct b43_dmadesc64 dma64; + } __attribute__ ((__packed__)); +} __attribute__ ((__packed__)); + +/* Misc DMA constants */ +#define B43_DMA_RINGMEMSIZE PAGE_SIZE +#define B43_DMA0_RX_FRAMEOFFSET 30 +#define B43_DMA3_RX_FRAMEOFFSET 0 + +/* DMA engine tuning knobs */ +#define B43_TXRING_SLOTS 128 +#define B43_RXRING_SLOTS 64 +#define B43_DMA0_RX_BUFFERSIZE (2304 + 100) +#define B43_DMA3_RX_BUFFERSIZE 16 + +#ifdef CONFIG_B43_DMA + +struct sk_buff; +struct b43_private; +struct b43_txstatus; + +struct b43_dmadesc_meta { + /* The kernel DMA-able buffer. */ + struct sk_buff *skb; + /* DMA base bus-address of the descriptor buffer. */ + dma_addr_t dmaaddr; + /* ieee80211 TX status. Only used once per 802.11 frag. */ + bool is_last_fragment; + struct ieee80211_tx_status txstat; +}; + +struct b43_dmaring; + +/* Lowlevel DMA operations that differ between 32bit and 64bit DMA. */ +struct b43_dma_ops { + struct b43_dmadesc_generic *(*idx2desc) (struct b43_dmaring * ring, + int slot, + struct b43_dmadesc_meta ** + meta); + void (*fill_descriptor) (struct b43_dmaring * ring, + struct b43_dmadesc_generic * desc, + dma_addr_t dmaaddr, u16 bufsize, int start, + int end, int irq); + void (*poke_tx) (struct b43_dmaring * ring, int slot); + void (*tx_suspend) (struct b43_dmaring * ring); + void (*tx_resume) (struct b43_dmaring * ring); + int (*get_current_rxslot) (struct b43_dmaring * ring); + void (*set_current_rxslot) (struct b43_dmaring * ring, int slot); +}; + +struct b43_dmaring { + /* Lowlevel DMA ops. */ + const struct b43_dma_ops *ops; + /* Kernel virtual base address of the ring memory. */ + void *descbase; + /* Meta data about all descriptors. */ + struct b43_dmadesc_meta *meta; + /* Cache of TX headers for each slot. + * This is to avoid an allocation on each TX. + * This is NULL for an RX ring. + */ + u8 *txhdr_cache; + /* (Unadjusted) DMA base bus-address of the ring memory. */ + dma_addr_t dmabase; + /* Number of descriptor slots in the ring. */ + int nr_slots; + /* Number of used descriptor slots. */ + int used_slots; + /* Currently used slot in the ring. */ + int current_slot; + /* Total number of packets sent. Statistics only. */ + unsigned int nr_tx_packets; + /* Frameoffset in octets. */ + u32 frameoffset; + /* Descriptor buffer size. */ + u16 rx_buffersize; + /* The MMIO base register of the DMA controller. */ + u16 mmio_base; + /* DMA controller index number (0-5). */ + int index; + /* Boolean. Is this a TX ring? */ + bool tx; + /* Boolean. 64bit DMA if true, 32bit DMA otherwise. */ + bool dma64; + /* Boolean. Is this ring stopped at ieee80211 level? */ + bool stopped; + /* Lock, only used for TX. */ + spinlock_t lock; + struct b43_wldev *dev; +#ifdef CONFIG_B43_DEBUG + /* Maximum number of used slots. */ + int max_used_slots; + /* Last time we injected a ring overflow. */ + unsigned long last_injected_overflow; +#endif /* CONFIG_B43_DEBUG */ +}; + +static inline u32 b43_dma_read(struct b43_dmaring *ring, u16 offset) +{ + return b43_read32(ring->dev, ring->mmio_base + offset); +} + +static inline + void b43_dma_write(struct b43_dmaring *ring, u16 offset, u32 value) +{ + b43_write32(ring->dev, ring->mmio_base + offset, value); +} + +int b43_dma_init(struct b43_wldev *dev); +void b43_dma_free(struct b43_wldev *dev); + +int b43_dmacontroller_rx_reset(struct b43_wldev *dev, + u16 dmacontroller_mmio_base, int dma64); +int b43_dmacontroller_tx_reset(struct b43_wldev *dev, + u16 dmacontroller_mmio_base, int dma64); + +u16 b43_dmacontroller_base(int dma64bit, int dmacontroller_idx); + +void b43_dma_tx_suspend(struct b43_wldev *dev); +void b43_dma_tx_resume(struct b43_wldev *dev); + +void b43_dma_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats); + +int b43_dma_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl); +void b43_dma_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status); + +void b43_dma_rx(struct b43_dmaring *ring); + +#else /* CONFIG_B43_DMA */ + +static inline int b43_dma_init(struct b43_wldev *dev) +{ + return 0; +} +static inline void b43_dma_free(struct b43_wldev *dev) +{ +} +static inline + int b43_dmacontroller_rx_reset(struct b43_wldev *dev, + u16 dmacontroller_mmio_base, int dma64) +{ + return 0; +} +static inline + int b43_dmacontroller_tx_reset(struct b43_wldev *dev, + u16 dmacontroller_mmio_base, int dma64) +{ + return 0; +} +static inline + void b43_dma_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats) +{ +} +static inline + int b43_dma_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl) +{ + return 0; +} +static inline + void b43_dma_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ +} +static inline void b43_dma_rx(struct b43_dmaring *ring) +{ +} +static inline void b43_dma_tx_suspend(struct b43_wldev *dev) +{ +} +static inline void b43_dma_tx_resume(struct b43_wldev *dev) +{ +} + +#endif /* CONFIG_B43_DMA */ +#endif /* B43_DMA_H_ */ diff --git a/drivers/net/wireless/b43/leds.c b/drivers/net/wireless/b43/leds.c new file mode 100644 index 000000000000..535f960412d7 --- /dev/null +++ b/drivers/net/wireless/b43/leds.c @@ -0,0 +1,299 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Stefano Brivio <st3@riseup.net> + Michael Buesch <mb@bu3sch.de> + Danny van Dyk <kugelfang@gentoo.org> + Andreas Jaggi <andreas.jaggi@waterwave.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "leds.h" +#include "main.h" + +static void b43_led_changestate(struct b43_led *led) +{ + struct b43_wldev *dev = led->dev; + const int index = b43_led_index(led); + const u16 mask = (1 << index); + u16 ledctl; + + B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS)); + B43_WARN_ON(!led->blink_interval); + ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); + ledctl = (ledctl & mask) ? (ledctl & ~mask) : (ledctl | mask); + b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); +} + +static void b43_led_blink(unsigned long d) +{ + struct b43_led *led = (struct b43_led *)d; + struct b43_wldev *dev = led->dev; + unsigned long flags; + + spin_lock_irqsave(&dev->wl->leds_lock, flags); + if (led->blink_interval) { + b43_led_changestate(led); + mod_timer(&led->blink_timer, jiffies + led->blink_interval); + } + spin_unlock_irqrestore(&dev->wl->leds_lock, flags); +} + +static void b43_led_blink_start(struct b43_led *led, unsigned long interval) +{ + if (led->blink_interval) + return; + led->blink_interval = interval; + b43_led_changestate(led); + led->blink_timer.expires = jiffies + interval; + add_timer(&led->blink_timer); +} + +static void b43_led_blink_stop(struct b43_led *led, int sync) +{ + struct b43_wldev *dev = led->dev; + const int index = b43_led_index(led); + u16 ledctl; + + if (!led->blink_interval) + return; + if (unlikely(sync)) + del_timer_sync(&led->blink_timer); + else + del_timer(&led->blink_timer); + led->blink_interval = 0; + + /* Make sure the LED is turned off. */ + B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS)); + ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); + if (led->activelow) + ledctl |= (1 << index); + else + ledctl &= ~(1 << index); + b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); +} + +static void b43_led_init_hardcoded(struct b43_wldev *dev, + struct b43_led *led, int led_index) +{ + struct ssb_bus *bus = dev->dev->bus; + + /* This function is called, if the behaviour (and activelow) + * information for a LED is missing in the SPROM. + * We hardcode the behaviour values for various devices here. + * Note that the B43_LED_TEST_XXX behaviour values can + * be used to figure out which led is mapped to which index. + */ + + switch (led_index) { + case 0: + led->behaviour = B43_LED_ACTIVITY; + led->activelow = 1; + if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ) + led->behaviour = B43_LED_RADIO_ALL; + break; + case 1: + led->behaviour = B43_LED_RADIO_B; + if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK) + led->behaviour = B43_LED_ASSOC; + break; + case 2: + led->behaviour = B43_LED_RADIO_A; + break; + case 3: + led->behaviour = B43_LED_OFF; + break; + default: + B43_WARN_ON(1); + } +} + +int b43_leds_init(struct b43_wldev *dev) +{ + struct b43_led *led; + u8 sprom[4]; + int i; + + sprom[0] = dev->dev->bus->sprom.r1.gpio0; + sprom[1] = dev->dev->bus->sprom.r1.gpio1; + sprom[2] = dev->dev->bus->sprom.r1.gpio2; + sprom[3] = dev->dev->bus->sprom.r1.gpio3; + + for (i = 0; i < B43_NR_LEDS; i++) { + led = &(dev->leds[i]); + led->dev = dev; + setup_timer(&led->blink_timer, + b43_led_blink, (unsigned long)led); + + if (sprom[i] == 0xFF) { + b43_led_init_hardcoded(dev, led, i); + } else { + led->behaviour = sprom[i] & B43_LED_BEHAVIOUR; + led->activelow = !!(sprom[i] & B43_LED_ACTIVELOW); + } + } + + return 0; +} + +void b43_leds_exit(struct b43_wldev *dev) +{ + struct b43_led *led; + int i; + + for (i = 0; i < B43_NR_LEDS; i++) { + led = &(dev->leds[i]); + b43_led_blink_stop(led, 1); + } + b43_leds_switch_all(dev, 0); +} + +void b43_leds_update(struct b43_wldev *dev, int activity) +{ + struct b43_led *led; + struct b43_phy *phy = &dev->phy; + const int transferring = + (jiffies - dev->stats.last_tx) < B43_LED_XFER_THRES; + int i, turn_on; + unsigned long interval = 0; + u16 ledctl; + unsigned long flags; + + spin_lock_irqsave(&dev->wl->leds_lock, flags); + ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); + for (i = 0; i < B43_NR_LEDS; i++) { + led = &(dev->leds[i]); + + turn_on = 0; + switch (led->behaviour) { + case B43_LED_INACTIVE: + continue; + case B43_LED_OFF: + break; + case B43_LED_ON: + turn_on = 1; + break; + case B43_LED_ACTIVITY: + turn_on = activity; + break; + case B43_LED_RADIO_ALL: + turn_on = phy->radio_on && b43_is_hw_radio_enabled(dev); + break; + case B43_LED_RADIO_A: + turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev) + && phy->type == B43_PHYTYPE_A); + break; + case B43_LED_RADIO_B: + turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev) + && (phy->type == B43_PHYTYPE_B + || phy->type == B43_PHYTYPE_G)); + break; + case B43_LED_MODE_BG: + if (phy->type == B43_PHYTYPE_G + && b43_is_hw_radio_enabled(dev) + && 1 /*FIXME: using G rates. */ ) + turn_on = 1; + break; + case B43_LED_TRANSFER: + if (transferring) + b43_led_blink_start(led, B43_LEDBLINK_MEDIUM); + else + b43_led_blink_stop(led, 0); + continue; + case B43_LED_APTRANSFER: + if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) { + if (transferring) { + interval = B43_LEDBLINK_FAST; + turn_on = 1; + } + } else { + turn_on = 1; + if (0 /*TODO: not assoc */ ) + interval = B43_LEDBLINK_SLOW; + else if (transferring) + interval = B43_LEDBLINK_FAST; + else + turn_on = 0; + } + if (turn_on) + b43_led_blink_start(led, interval); + else + b43_led_blink_stop(led, 0); + continue; + case B43_LED_WEIRD: + //TODO + break; + case B43_LED_ASSOC: + if (1 /*dev->softmac->associated */ ) + turn_on = 1; + break; +#ifdef CONFIG_B43_DEBUG + case B43_LED_TEST_BLINKSLOW: + b43_led_blink_start(led, B43_LEDBLINK_SLOW); + continue; + case B43_LED_TEST_BLINKMEDIUM: + b43_led_blink_start(led, B43_LEDBLINK_MEDIUM); + continue; + case B43_LED_TEST_BLINKFAST: + b43_led_blink_start(led, B43_LEDBLINK_FAST); + continue; +#endif /* CONFIG_B43_DEBUG */ + default: + B43_WARN_ON(1); + }; + + if (led->activelow) + turn_on = !turn_on; + if (turn_on) + ledctl |= (1 << i); + else + ledctl &= ~(1 << i); + } + b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); + spin_unlock_irqrestore(&dev->wl->leds_lock, flags); +} + +void b43_leds_switch_all(struct b43_wldev *dev, int on) +{ + struct b43_led *led; + u16 ledctl; + int i; + int bit_on; + unsigned long flags; + + spin_lock_irqsave(&dev->wl->leds_lock, flags); + ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL); + for (i = 0; i < B43_NR_LEDS; i++) { + led = &(dev->leds[i]); + if (led->behaviour == B43_LED_INACTIVE) + continue; + if (on) + bit_on = led->activelow ? 0 : 1; + else + bit_on = led->activelow ? 1 : 0; + if (bit_on) + ledctl |= (1 << i); + else + ledctl &= ~(1 << i); + } + b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl); + spin_unlock_irqrestore(&dev->wl->leds_lock, flags); +} diff --git a/drivers/net/wireless/b43/leds.h b/drivers/net/wireless/b43/leds.h new file mode 100644 index 000000000000..36b46cfda220 --- /dev/null +++ b/drivers/net/wireless/b43/leds.h @@ -0,0 +1,55 @@ +#ifndef B43_LEDS_H_ +#define B43_LEDS_H_ + +#include <linux/types.h> +#include <linux/timer.h> + +struct b43_led { + u8 behaviour:7; + u8 activelow:1; + + struct b43_wldev *dev; + struct timer_list blink_timer; + unsigned long blink_interval; +}; +#define b43_led_index(led) ((int)((led) - (led)->dev->leds)) + +/* Delay between state changes when blinking in jiffies */ +#define B43_LEDBLINK_SLOW (HZ / 1) +#define B43_LEDBLINK_MEDIUM (HZ / 4) +#define B43_LEDBLINK_FAST (HZ / 8) + +#define B43_LED_XFER_THRES (HZ / 100) + +#define B43_LED_BEHAVIOUR 0x7F +#define B43_LED_ACTIVELOW 0x80 +enum { /* LED behaviour values */ + B43_LED_OFF, + B43_LED_ON, + B43_LED_ACTIVITY, + B43_LED_RADIO_ALL, + B43_LED_RADIO_A, + B43_LED_RADIO_B, + B43_LED_MODE_BG, + B43_LED_TRANSFER, + B43_LED_APTRANSFER, + B43_LED_WEIRD, //FIXME + B43_LED_ASSOC, + B43_LED_INACTIVE, + + /* Behaviour values for testing. + * With these values it is easier to figure out + * the real behaviour of leds, in case the SPROM + * is missing information. + */ + B43_LED_TEST_BLINKSLOW, + B43_LED_TEST_BLINKMEDIUM, + B43_LED_TEST_BLINKFAST, +}; + +int b43_leds_init(struct b43_wldev *dev); +void b43_leds_exit(struct b43_wldev *dev); +void b43_leds_update(struct b43_wldev *dev, int activity); +void b43_leds_switch_all(struct b43_wldev *dev, int on); + +#endif /* B43_LEDS_H_ */ diff --git a/drivers/net/wireless/b43/lo.c b/drivers/net/wireless/b43/lo.c new file mode 100644 index 000000000000..b14a1753a0d7 --- /dev/null +++ b/drivers/net/wireless/b43/lo.c @@ -0,0 +1,1261 @@ +/* + + Broadcom B43 wireless driver + + G PHY LO (LocalOscillator) Measuring and Control routines + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Copyright (c) 2005, 2006 Stefano Brivio <st3@riseup.net> + Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> + Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "lo.h" +#include "phy.h" +#include "main.h" + +#include <linux/delay.h> +#include <linux/sched.h> + + +/* Define to 1 to always calibrate all possible LO control pairs. + * This is a workaround until we fix the partial LO calibration optimization. */ +#define B43_CALIB_ALL_LOCTLS 1 + + +/* Write the LocalOscillator Control (adjust) value-pair. */ +static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control) +{ + struct b43_phy *phy = &dev->phy; + u16 value; + u16 reg; + + if (B43_DEBUG) { + if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) { + b43dbg(dev->wl, "Invalid LO control pair " + "(I: %d, Q: %d)\n", control->i, control->q); + dump_stack(); + return; + } + } + + value = (u8) (control->q); + value |= ((u8) (control->i)) << 8; + + reg = (phy->type == B43_PHYTYPE_B) ? 0x002F : B43_PHY_LO_CTL; + b43_phy_write(dev, reg, value); +} + +static int assert_rfatt_and_bbatt(const struct b43_rfatt *rfatt, + const struct b43_bbatt *bbatt, + struct b43_wldev *dev) +{ + int err = 0; + + /* Check the attenuation values against the LO control array sizes. */ + if (unlikely(rfatt->att >= B43_NR_RF)) { + b43err(dev->wl, "rfatt(%u) >= size of LO array\n", rfatt->att); + err = -EINVAL; + } + if (unlikely(bbatt->att >= B43_NR_BB)) { + b43err(dev->wl, "bbatt(%u) >= size of LO array\n", bbatt->att); + err = -EINVAL; + } + + return err; +} + +#if !B43_CALIB_ALL_LOCTLS +static +struct b43_loctl *b43_get_lo_g_ctl_nopadmix(struct b43_wldev *dev, + const struct b43_rfatt *rfatt, + const struct b43_bbatt *bbatt) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + + if (assert_rfatt_and_bbatt(rfatt, bbatt, dev)) + return &(lo->no_padmix[0][0]); /* Just prevent a crash */ + return &(lo->no_padmix[bbatt->att][rfatt->att]); +} +#endif /* !B43_CALIB_ALL_LOCTLS */ + +struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev, + const struct b43_rfatt *rfatt, + const struct b43_bbatt *bbatt) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + + if (assert_rfatt_and_bbatt(rfatt, bbatt, dev)) + return &(lo->no_padmix[0][0]); /* Just prevent a crash */ + if (rfatt->with_padmix) + return &(lo->with_padmix[bbatt->att][rfatt->att]); + return &(lo->no_padmix[bbatt->att][rfatt->att]); +} + +/* Call a function for every possible LO control value-pair. */ +static void b43_call_for_each_loctl(struct b43_wldev *dev, + void (*func) (struct b43_wldev *, + struct b43_loctl *)) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *ctl = phy->lo_control; + int i, j; + + for (i = 0; i < B43_NR_BB; i++) { + for (j = 0; j < B43_NR_RF; j++) + func(dev, &(ctl->with_padmix[i][j])); + } + for (i = 0; i < B43_NR_BB; i++) { + for (j = 0; j < B43_NR_RF; j++) + func(dev, &(ctl->no_padmix[i][j])); + } +} + +static u16 lo_b_r15_loop(struct b43_wldev *dev) +{ + int i; + u16 ret = 0; + + for (i = 0; i < 10; i++) { + b43_phy_write(dev, 0x0015, 0xAFA0); + udelay(1); + b43_phy_write(dev, 0x0015, 0xEFA0); + udelay(10); + b43_phy_write(dev, 0x0015, 0xFFA0); + udelay(40); + ret += b43_phy_read(dev, 0x002C); + } + + return ret; +} + +void b43_lo_b_measure(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 regstack[12] = { 0 }; + u16 mls; + u16 fval; + int i, j; + + regstack[0] = b43_phy_read(dev, 0x0015); + regstack[1] = b43_radio_read16(dev, 0x0052) & 0xFFF0; + + if (phy->radio_ver == 0x2053) { + regstack[2] = b43_phy_read(dev, 0x000A); + regstack[3] = b43_phy_read(dev, 0x002A); + regstack[4] = b43_phy_read(dev, 0x0035); + regstack[5] = b43_phy_read(dev, 0x0003); + regstack[6] = b43_phy_read(dev, 0x0001); + regstack[7] = b43_phy_read(dev, 0x0030); + + regstack[8] = b43_radio_read16(dev, 0x0043); + regstack[9] = b43_radio_read16(dev, 0x007A); + regstack[10] = b43_read16(dev, 0x03EC); + regstack[11] = b43_radio_read16(dev, 0x0052) & 0x00F0; + + b43_phy_write(dev, 0x0030, 0x00FF); + b43_write16(dev, 0x03EC, 0x3F3F); + b43_phy_write(dev, 0x0035, regstack[4] & 0xFF7F); + b43_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0); + } + b43_phy_write(dev, 0x0015, 0xB000); + b43_phy_write(dev, 0x002B, 0x0004); + + if (phy->radio_ver == 0x2053) { + b43_phy_write(dev, 0x002B, 0x0203); + b43_phy_write(dev, 0x002A, 0x08A3); + } + + phy->minlowsig[0] = 0xFFFF; + + for (i = 0; i < 4; i++) { + b43_radio_write16(dev, 0x0052, regstack[1] | i); + lo_b_r15_loop(dev); + } + for (i = 0; i < 10; i++) { + b43_radio_write16(dev, 0x0052, regstack[1] | i); + mls = lo_b_r15_loop(dev) / 10; + if (mls < phy->minlowsig[0]) { + phy->minlowsig[0] = mls; + phy->minlowsigpos[0] = i; + } + } + b43_radio_write16(dev, 0x0052, regstack[1] | phy->minlowsigpos[0]); + + phy->minlowsig[1] = 0xFFFF; + + for (i = -4; i < 5; i += 2) { + for (j = -4; j < 5; j += 2) { + if (j < 0) + fval = (0x0100 * i) + j + 0x0100; + else + fval = (0x0100 * i) + j; + b43_phy_write(dev, 0x002F, fval); + mls = lo_b_r15_loop(dev) / 10; + if (mls < phy->minlowsig[1]) { + phy->minlowsig[1] = mls; + phy->minlowsigpos[1] = fval; + } + } + } + phy->minlowsigpos[1] += 0x0101; + + b43_phy_write(dev, 0x002F, phy->minlowsigpos[1]); + if (phy->radio_ver == 0x2053) { + b43_phy_write(dev, 0x000A, regstack[2]); + b43_phy_write(dev, 0x002A, regstack[3]); + b43_phy_write(dev, 0x0035, regstack[4]); + b43_phy_write(dev, 0x0003, regstack[5]); + b43_phy_write(dev, 0x0001, regstack[6]); + b43_phy_write(dev, 0x0030, regstack[7]); + + b43_radio_write16(dev, 0x0043, regstack[8]); + b43_radio_write16(dev, 0x007A, regstack[9]); + + b43_radio_write16(dev, 0x0052, + (b43_radio_read16(dev, 0x0052) & 0x000F) + | regstack[11]); + + b43_write16(dev, 0x03EC, regstack[10]); + } + b43_phy_write(dev, 0x0015, regstack[0]); +} + +static u16 lo_measure_feedthrough(struct b43_wldev *dev, + u16 lna, u16 pga, u16 trsw_rx) +{ + struct b43_phy *phy = &dev->phy; + u16 rfover; + u16 feedthrough; + + if (phy->gmode) { + lna <<= B43_PHY_RFOVERVAL_LNA_SHIFT; + pga <<= B43_PHY_RFOVERVAL_PGA_SHIFT; + + B43_WARN_ON(lna & ~B43_PHY_RFOVERVAL_LNA); + B43_WARN_ON(pga & ~B43_PHY_RFOVERVAL_PGA); +/*FIXME This assertion fails B43_WARN_ON(trsw_rx & ~(B43_PHY_RFOVERVAL_TRSWRX | + B43_PHY_RFOVERVAL_BW)); +*/ + trsw_rx &= (B43_PHY_RFOVERVAL_TRSWRX | B43_PHY_RFOVERVAL_BW); + + /* Construct the RF Override Value */ + rfover = B43_PHY_RFOVERVAL_UNK; + rfover |= pga; + rfover |= lna; + rfover |= trsw_rx; + if ((dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_EXTLNA) && + phy->rev > 6) + rfover |= B43_PHY_RFOVERVAL_EXTLNA; + + b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); + b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); + udelay(10); + rfover |= B43_PHY_RFOVERVAL_BW_LBW; + b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); + udelay(10); + rfover |= B43_PHY_RFOVERVAL_BW_LPF; + b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); + udelay(10); + b43_phy_write(dev, B43_PHY_PGACTL, 0xF300); + } else { + pga |= B43_PHY_PGACTL_UNKNOWN; + b43_phy_write(dev, B43_PHY_PGACTL, pga); + udelay(10); + pga |= B43_PHY_PGACTL_LOWBANDW; + b43_phy_write(dev, B43_PHY_PGACTL, pga); + udelay(10); + pga |= B43_PHY_PGACTL_LPF; + b43_phy_write(dev, B43_PHY_PGACTL, pga); + } + udelay(21); + feedthrough = b43_phy_read(dev, B43_PHY_LO_LEAKAGE); + + /* This is a good place to check if we need to relax a bit, + * as this is the main function called regularly + * in the LO calibration. */ + cond_resched(); + + return feedthrough; +} + +/* TXCTL Register and Value Table. + * Returns the "TXCTL Register". + * "value" is the "TXCTL Value". + * "pad_mix_gain" is the PAD Mixer Gain. + */ +static u16 lo_txctl_register_table(struct b43_wldev *dev, + u16 * value, u16 * pad_mix_gain) +{ + struct b43_phy *phy = &dev->phy; + u16 reg, v, padmix; + + if (phy->type == B43_PHYTYPE_B) { + v = 0x30; + if (phy->radio_rev <= 5) { + reg = 0x43; + padmix = 0; + } else { + reg = 0x52; + padmix = 5; + } + } else { + if (phy->rev >= 2 && phy->radio_rev == 8) { + reg = 0x43; + v = 0x10; + padmix = 2; + } else { + reg = 0x52; + v = 0x30; + padmix = 5; + } + } + if (value) + *value = v; + if (pad_mix_gain) + *pad_mix_gain = padmix; + + return reg; +} + +static void lo_measure_txctl_values(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 reg, mask; + u16 trsw_rx, pga; + u16 radio_pctl_reg; + + static const u8 tx_bias_values[] = { + 0x09, 0x08, 0x0A, 0x01, 0x00, + 0x02, 0x05, 0x04, 0x06, + }; + static const u8 tx_magn_values[] = { + 0x70, 0x40, + }; + + if (!has_loopback_gain(phy)) { + radio_pctl_reg = 6; + trsw_rx = 2; + pga = 0; + } else { + int lb_gain; /* Loopback gain (in dB) */ + + trsw_rx = 0; + lb_gain = phy->max_lb_gain / 2; + if (lb_gain > 10) { + radio_pctl_reg = 0; + pga = abs(10 - lb_gain) / 6; + pga = limit_value(pga, 0, 15); + } else { + int cmp_val; + int tmp; + + pga = 0; + cmp_val = 0x24; + if ((phy->rev >= 2) && + (phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) + cmp_val = 0x3C; + tmp = lb_gain; + if ((10 - lb_gain) < cmp_val) + tmp = (10 - lb_gain); + if (tmp < 0) + tmp += 6; + else + tmp += 3; + cmp_val /= 4; + tmp /= 4; + if (tmp >= cmp_val) + radio_pctl_reg = cmp_val; + else + radio_pctl_reg = tmp; + } + } + b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43) + & 0xFFF0) | radio_pctl_reg); + b43_phy_set_baseband_attenuation(dev, 2); + + reg = lo_txctl_register_table(dev, &mask, NULL); + mask = ~mask; + b43_radio_write16(dev, reg, b43_radio_read16(dev, reg) + & mask); + + if (has_tx_magnification(phy)) { + int i, j; + int feedthrough; + int min_feedth = 0xFFFF; + u8 tx_magn, tx_bias; + + for (i = 0; i < ARRAY_SIZE(tx_magn_values); i++) { + tx_magn = tx_magn_values[i]; + b43_radio_write16(dev, 0x52, + (b43_radio_read16(dev, 0x52) + & 0xFF0F) | tx_magn); + for (j = 0; j < ARRAY_SIZE(tx_bias_values); j++) { + tx_bias = tx_bias_values[j]; + b43_radio_write16(dev, 0x52, + (b43_radio_read16(dev, 0x52) + & 0xFFF0) | tx_bias); + feedthrough = + lo_measure_feedthrough(dev, 0, pga, + trsw_rx); + if (feedthrough < min_feedth) { + lo->tx_bias = tx_bias; + lo->tx_magn = tx_magn; + min_feedth = feedthrough; + } + if (lo->tx_bias == 0) + break; + } + b43_radio_write16(dev, 0x52, + (b43_radio_read16(dev, 0x52) + & 0xFF00) | lo->tx_bias | lo-> + tx_magn); + } + } else { + lo->tx_magn = 0; + lo->tx_bias = 0; + b43_radio_write16(dev, 0x52, b43_radio_read16(dev, 0x52) + & 0xFFF0); /* TX bias == 0 */ + } +} + +static void lo_read_power_vector(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 i; + u64 tmp; + u64 power_vector = 0; + int rf_offset, bb_offset; + struct b43_loctl *loctl; + + for (i = 0; i < 8; i += 2) { + tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i); + /* Clear the top byte. We get holes in the bitmap... */ + tmp &= 0xFF; + power_vector |= (tmp << (i * 8)); + /* Clear the vector on the device. */ + b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0); + } + + if (power_vector) + lo->power_vector = power_vector; + power_vector = lo->power_vector; + + for (i = 0; i < 64; i++) { + if (power_vector & ((u64) 1ULL << i)) { + /* Now figure out which b43_loctl corresponds + * to this bit. + */ + rf_offset = i / lo->rfatt_list.len; + bb_offset = i % lo->rfatt_list.len; //FIXME? + loctl = + b43_get_lo_g_ctl(dev, + &lo->rfatt_list.list[rf_offset], + &lo->bbatt_list.list[bb_offset]); + /* And mark it as "used", as the device told us + * through the bitmap it is using it. + */ + loctl->used = 1; + } + } +} + +/* 802.11/LO/GPHY/MeasuringGains */ +static void lo_measure_gain_values(struct b43_wldev *dev, + s16 max_rx_gain, int use_trsw_rx) +{ + struct b43_phy *phy = &dev->phy; + u16 tmp; + + if (max_rx_gain < 0) + max_rx_gain = 0; + + if (has_loopback_gain(phy)) { + int trsw_rx = 0; + int trsw_rx_gain; + + if (use_trsw_rx) { + trsw_rx_gain = phy->trsw_rx_gain / 2; + if (max_rx_gain >= trsw_rx_gain) { + trsw_rx_gain = max_rx_gain - trsw_rx_gain; + trsw_rx = 0x20; + } + } else + trsw_rx_gain = max_rx_gain; + if (trsw_rx_gain < 9) { + phy->lna_lod_gain = 0; + } else { + phy->lna_lod_gain = 1; + trsw_rx_gain -= 8; + } + trsw_rx_gain = limit_value(trsw_rx_gain, 0, 0x2D); + phy->pga_gain = trsw_rx_gain / 3; + if (phy->pga_gain >= 5) { + phy->pga_gain -= 5; + phy->lna_gain = 2; + } else + phy->lna_gain = 0; + } else { + phy->lna_gain = 0; + phy->trsw_rx_gain = 0x20; + if (max_rx_gain >= 0x14) { + phy->lna_lod_gain = 1; + phy->pga_gain = 2; + } else if (max_rx_gain >= 0x12) { + phy->lna_lod_gain = 1; + phy->pga_gain = 1; + } else if (max_rx_gain >= 0xF) { + phy->lna_lod_gain = 1; + phy->pga_gain = 0; + } else { + phy->lna_lod_gain = 0; + phy->pga_gain = 0; + } + } + + tmp = b43_radio_read16(dev, 0x7A); + if (phy->lna_lod_gain == 0) + tmp &= ~0x0008; + else + tmp |= 0x0008; + b43_radio_write16(dev, 0x7A, tmp); +} + +struct lo_g_saved_values { + u8 old_channel; + + /* Core registers */ + u16 reg_3F4; + u16 reg_3E2; + + /* PHY registers */ + u16 phy_lo_mask; + u16 phy_extg_01; + u16 phy_dacctl_hwpctl; + u16 phy_dacctl; + u16 phy_base_14; + u16 phy_hpwr_tssictl; + u16 phy_analogover; + u16 phy_analogoverval; + u16 phy_rfover; + u16 phy_rfoverval; + u16 phy_classctl; + u16 phy_base_3E; + u16 phy_crs0; + u16 phy_pgactl; + u16 phy_base_2A; + u16 phy_syncctl; + u16 phy_base_30; + u16 phy_base_06; + + /* Radio registers */ + u16 radio_43; + u16 radio_7A; + u16 radio_52; +}; + +static void lo_measure_setup(struct b43_wldev *dev, + struct lo_g_saved_values *sav) +{ + struct ssb_sprom *sprom = &dev->dev->bus->sprom; + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 tmp; + + if (b43_has_hardware_pctl(phy)) { + sav->phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK); + sav->phy_extg_01 = b43_phy_read(dev, B43_PHY_EXTG(0x01)); + sav->phy_dacctl_hwpctl = b43_phy_read(dev, B43_PHY_DACCTL); + sav->phy_base_14 = b43_phy_read(dev, B43_PHY_BASE(0x14)); + sav->phy_hpwr_tssictl = b43_phy_read(dev, B43_PHY_HPWR_TSSICTL); + + b43_phy_write(dev, B43_PHY_HPWR_TSSICTL, + b43_phy_read(dev, B43_PHY_HPWR_TSSICTL) + | 0x100); + b43_phy_write(dev, B43_PHY_EXTG(0x01), + b43_phy_read(dev, B43_PHY_EXTG(0x01)) + | 0x40); + b43_phy_write(dev, B43_PHY_DACCTL, + b43_phy_read(dev, B43_PHY_DACCTL) + | 0x40); + b43_phy_write(dev, B43_PHY_BASE(0x14), + b43_phy_read(dev, B43_PHY_BASE(0x14)) + | 0x200); + } + if (phy->type == B43_PHYTYPE_B && + phy->radio_ver == 0x2050 && phy->radio_rev < 6) { + b43_phy_write(dev, B43_PHY_BASE(0x16), 0x410); + b43_phy_write(dev, B43_PHY_BASE(0x17), 0x820); + } + if (!lo->rebuild && b43_has_hardware_pctl(phy)) + lo_read_power_vector(dev); + if (phy->rev >= 2) { + sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER); + sav->phy_analogoverval = + b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); + sav->phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER); + sav->phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); + sav->phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL); + sav->phy_base_3E = b43_phy_read(dev, B43_PHY_BASE(0x3E)); + sav->phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0); + + b43_phy_write(dev, B43_PHY_CLASSCTL, + b43_phy_read(dev, B43_PHY_CLASSCTL) + & 0xFFFC); + b43_phy_write(dev, B43_PHY_CRS0, b43_phy_read(dev, B43_PHY_CRS0) + & 0x7FFF); + b43_phy_write(dev, B43_PHY_ANALOGOVER, + b43_phy_read(dev, B43_PHY_ANALOGOVER) + | 0x0003); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + b43_phy_read(dev, B43_PHY_ANALOGOVERVAL) + & 0xFFFC); + if (phy->type == B43_PHYTYPE_G) { + if ((phy->rev >= 7) && + (sprom->r1.boardflags_lo & B43_BFL_EXTLNA)) { + b43_phy_write(dev, B43_PHY_RFOVER, 0x933); + } else { + b43_phy_write(dev, B43_PHY_RFOVER, 0x133); + } + } else { + b43_phy_write(dev, B43_PHY_RFOVER, 0); + } + b43_phy_write(dev, B43_PHY_BASE(0x3E), 0); + } + sav->reg_3F4 = b43_read16(dev, 0x3F4); + sav->reg_3E2 = b43_read16(dev, 0x3E2); + sav->radio_43 = b43_radio_read16(dev, 0x43); + sav->radio_7A = b43_radio_read16(dev, 0x7A); + sav->phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL); + sav->phy_base_2A = b43_phy_read(dev, B43_PHY_BASE(0x2A)); + sav->phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL); + sav->phy_dacctl = b43_phy_read(dev, B43_PHY_DACCTL); + + if (!has_tx_magnification(phy)) { + sav->radio_52 = b43_radio_read16(dev, 0x52); + sav->radio_52 &= 0x00F0; + } + if (phy->type == B43_PHYTYPE_B) { + sav->phy_base_30 = b43_phy_read(dev, B43_PHY_BASE(0x30)); + sav->phy_base_06 = b43_phy_read(dev, B43_PHY_BASE(0x06)); + b43_phy_write(dev, B43_PHY_BASE(0x30), 0x00FF); + b43_phy_write(dev, B43_PHY_BASE(0x06), 0x3F3F); + } else { + b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) + | 0x8000); + } + b43_write16(dev, 0x3F4, b43_read16(dev, 0x3F4) + & 0xF000); + + tmp = + (phy->type == B43_PHYTYPE_G) ? B43_PHY_LO_MASK : B43_PHY_BASE(0x2E); + b43_phy_write(dev, tmp, 0x007F); + + tmp = sav->phy_syncctl; + b43_phy_write(dev, B43_PHY_SYNCCTL, tmp & 0xFF7F); + tmp = sav->radio_7A; + b43_radio_write16(dev, 0x007A, tmp & 0xFFF0); + + b43_phy_write(dev, B43_PHY_BASE(0x2A), 0x8A3); + if (phy->type == B43_PHYTYPE_G || + (phy->type == B43_PHYTYPE_B && + phy->radio_ver == 0x2050 && phy->radio_rev >= 6)) { + b43_phy_write(dev, B43_PHY_BASE(0x2B), 0x1003); + } else + b43_phy_write(dev, B43_PHY_BASE(0x2B), 0x0802); + if (phy->rev >= 2) + b43_dummy_transmission(dev); + b43_radio_selectchannel(dev, 6, 0); + b43_radio_read16(dev, 0x51); /* dummy read */ + if (phy->type == B43_PHYTYPE_G) + b43_phy_write(dev, B43_PHY_BASE(0x2F), 0); + if (lo->rebuild) + lo_measure_txctl_values(dev); + if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) { + b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078); + } else { + if (phy->type == B43_PHYTYPE_B) + b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x8078); + else + b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078); + } +} + +static void lo_measure_restore(struct b43_wldev *dev, + struct lo_g_saved_values *sav) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 tmp; + + if (phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); + tmp = (phy->pga_gain << 8); + b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA0); + udelay(5); + b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA2); + udelay(2); + b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA3); + } else { + tmp = (phy->pga_gain | 0xEFA0); + b43_phy_write(dev, B43_PHY_PGACTL, tmp); + } + if (b43_has_hardware_pctl(phy)) { + b43_gphy_dc_lt_init(dev); + } else { + if (lo->rebuild) + b43_lo_g_adjust_to(dev, 3, 2, 0); + else + b43_lo_g_adjust(dev); + } + if (phy->type == B43_PHYTYPE_G) { + if (phy->rev >= 3) + b43_phy_write(dev, B43_PHY_BASE(0x2E), 0xC078); + else + b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x8078); + if (phy->rev >= 2) + b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x0202); + else + b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x0101); + } + b43_write16(dev, 0x3F4, sav->reg_3F4); + b43_phy_write(dev, B43_PHY_PGACTL, sav->phy_pgactl); + b43_phy_write(dev, B43_PHY_BASE(0x2A), sav->phy_base_2A); + b43_phy_write(dev, B43_PHY_SYNCCTL, sav->phy_syncctl); + b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl); + b43_radio_write16(dev, 0x43, sav->radio_43); + b43_radio_write16(dev, 0x7A, sav->radio_7A); + if (!has_tx_magnification(phy)) { + tmp = sav->radio_52; + b43_radio_write16(dev, 0x52, (b43_radio_read16(dev, 0x52) + & 0xFF0F) | tmp); + } + b43_write16(dev, 0x3E2, sav->reg_3E2); + if (phy->type == B43_PHYTYPE_B && + phy->radio_ver == 0x2050 && phy->radio_rev <= 5) { + b43_phy_write(dev, B43_PHY_BASE(0x30), sav->phy_base_30); + b43_phy_write(dev, B43_PHY_BASE(0x06), sav->phy_base_06); + } + if (phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_ANALOGOVER, sav->phy_analogover); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + sav->phy_analogoverval); + b43_phy_write(dev, B43_PHY_CLASSCTL, sav->phy_classctl); + b43_phy_write(dev, B43_PHY_RFOVER, sav->phy_rfover); + b43_phy_write(dev, B43_PHY_RFOVERVAL, sav->phy_rfoverval); + b43_phy_write(dev, B43_PHY_BASE(0x3E), sav->phy_base_3E); + b43_phy_write(dev, B43_PHY_CRS0, sav->phy_crs0); + } + if (b43_has_hardware_pctl(phy)) { + tmp = (sav->phy_lo_mask & 0xBFFF); + b43_phy_write(dev, B43_PHY_LO_MASK, tmp); + b43_phy_write(dev, B43_PHY_EXTG(0x01), sav->phy_extg_01); + b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl_hwpctl); + b43_phy_write(dev, B43_PHY_BASE(0x14), sav->phy_base_14); + b43_phy_write(dev, B43_PHY_HPWR_TSSICTL, sav->phy_hpwr_tssictl); + } + b43_radio_selectchannel(dev, sav->old_channel, 1); +} + +struct b43_lo_g_statemachine { + int current_state; + int nr_measured; + int state_val_multiplier; + u16 lowest_feedth; + struct b43_loctl min_loctl; +}; + +/* Loop over each possible value in this state. */ +static int lo_probe_possible_loctls(struct b43_wldev *dev, + struct b43_loctl *probe_loctl, + struct b43_lo_g_statemachine *d) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + struct b43_loctl test_loctl; + struct b43_loctl orig_loctl; + struct b43_loctl prev_loctl = { + .i = -100, + .q = -100, + }; + int i; + int begin, end; + int found_lower = 0; + u16 feedth; + + static const struct b43_loctl modifiers[] = { + {.i = 1,.q = 1,}, + {.i = 1,.q = 0,}, + {.i = 1,.q = -1,}, + {.i = 0,.q = -1,}, + {.i = -1,.q = -1,}, + {.i = -1,.q = 0,}, + {.i = -1,.q = 1,}, + {.i = 0,.q = 1,}, + }; + + if (d->current_state == 0) { + begin = 1; + end = 8; + } else if (d->current_state % 2 == 0) { + begin = d->current_state - 1; + end = d->current_state + 1; + } else { + begin = d->current_state - 2; + end = d->current_state + 2; + } + if (begin < 1) + begin += 8; + if (end > 8) + end -= 8; + + memcpy(&orig_loctl, probe_loctl, sizeof(struct b43_loctl)); + i = begin; + d->current_state = i; + while (1) { + B43_WARN_ON(!(i >= 1 && i <= 8)); + memcpy(&test_loctl, &orig_loctl, sizeof(struct b43_loctl)); + test_loctl.i += modifiers[i - 1].i * d->state_val_multiplier; + test_loctl.q += modifiers[i - 1].q * d->state_val_multiplier; + if ((test_loctl.i != prev_loctl.i || + test_loctl.q != prev_loctl.q) && + (abs(test_loctl.i) <= 16 && abs(test_loctl.q) <= 16)) { + b43_lo_write(dev, &test_loctl); + feedth = lo_measure_feedthrough(dev, phy->lna_gain, + phy->pga_gain, + phy->trsw_rx_gain); + if (feedth < d->lowest_feedth) { + memcpy(probe_loctl, &test_loctl, + sizeof(struct b43_loctl)); + found_lower = 1; + d->lowest_feedth = feedth; + if ((d->nr_measured < 2) && + (!has_loopback_gain(phy) || lo->rebuild)) + break; + } + } + memcpy(&prev_loctl, &test_loctl, sizeof(prev_loctl)); + if (i == end) + break; + if (i == 8) + i = 1; + else + i++; + d->current_state = i; + } + + return found_lower; +} + +static void lo_probe_loctls_statemachine(struct b43_wldev *dev, + struct b43_loctl *loctl, + int *max_rx_gain) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + struct b43_lo_g_statemachine d; + u16 feedth; + int found_lower; + struct b43_loctl probe_loctl; + int max_repeat = 1, repeat_cnt = 0; + + d.nr_measured = 0; + d.state_val_multiplier = 1; + if (has_loopback_gain(phy) && !lo->rebuild) + d.state_val_multiplier = 3; + + memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl)); + if (has_loopback_gain(phy) && lo->rebuild) + max_repeat = 4; + do { + b43_lo_write(dev, &d.min_loctl); + feedth = lo_measure_feedthrough(dev, phy->lna_gain, + phy->pga_gain, + phy->trsw_rx_gain); + if (!lo->rebuild && feedth < 0x258) { + if (feedth >= 0x12C) + *max_rx_gain += 6; + else + *max_rx_gain += 3; + feedth = lo_measure_feedthrough(dev, phy->lna_gain, + phy->pga_gain, + phy->trsw_rx_gain); + } + d.lowest_feedth = feedth; + + d.current_state = 0; + do { + B43_WARN_ON(! + (d.current_state >= 0 + && d.current_state <= 8)); + memcpy(&probe_loctl, &d.min_loctl, + sizeof(struct b43_loctl)); + found_lower = + lo_probe_possible_loctls(dev, &probe_loctl, &d); + if (!found_lower) + break; + if ((probe_loctl.i == d.min_loctl.i) && + (probe_loctl.q == d.min_loctl.q)) + break; + memcpy(&d.min_loctl, &probe_loctl, + sizeof(struct b43_loctl)); + d.nr_measured++; + } while (d.nr_measured < 24); + memcpy(loctl, &d.min_loctl, sizeof(struct b43_loctl)); + + if (has_loopback_gain(phy)) { + if (d.lowest_feedth > 0x1194) + *max_rx_gain -= 6; + else if (d.lowest_feedth < 0x5DC) + *max_rx_gain += 3; + if (repeat_cnt == 0) { + if (d.lowest_feedth <= 0x5DC) { + d.state_val_multiplier = 1; + repeat_cnt++; + } else + d.state_val_multiplier = 2; + } else if (repeat_cnt == 2) + d.state_val_multiplier = 1; + } + lo_measure_gain_values(dev, *max_rx_gain, + has_loopback_gain(phy)); + } while (++repeat_cnt < max_repeat); +} + +#if B43_CALIB_ALL_LOCTLS +static const struct b43_rfatt b43_full_rfatt_list_items[] = { + { .att = 0, .with_padmix = 0, }, + { .att = 1, .with_padmix = 0, }, + { .att = 2, .with_padmix = 0, }, + { .att = 3, .with_padmix = 0, }, + { .att = 4, .with_padmix = 0, }, + { .att = 5, .with_padmix = 0, }, + { .att = 6, .with_padmix = 0, }, + { .att = 7, .with_padmix = 0, }, + { .att = 8, .with_padmix = 0, }, + { .att = 9, .with_padmix = 0, }, + { .att = 10, .with_padmix = 0, }, + { .att = 11, .with_padmix = 0, }, + { .att = 12, .with_padmix = 0, }, + { .att = 13, .with_padmix = 0, }, + { .att = 14, .with_padmix = 0, }, + { .att = 15, .with_padmix = 0, }, + { .att = 0, .with_padmix = 1, }, + { .att = 1, .with_padmix = 1, }, + { .att = 2, .with_padmix = 1, }, + { .att = 3, .with_padmix = 1, }, + { .att = 4, .with_padmix = 1, }, + { .att = 5, .with_padmix = 1, }, + { .att = 6, .with_padmix = 1, }, + { .att = 7, .with_padmix = 1, }, + { .att = 8, .with_padmix = 1, }, + { .att = 9, .with_padmix = 1, }, + { .att = 10, .with_padmix = 1, }, + { .att = 11, .with_padmix = 1, }, + { .att = 12, .with_padmix = 1, }, + { .att = 13, .with_padmix = 1, }, + { .att = 14, .with_padmix = 1, }, + { .att = 15, .with_padmix = 1, }, +}; +static const struct b43_rfatt_list b43_full_rfatt_list = { + .list = b43_full_rfatt_list_items, + .len = ARRAY_SIZE(b43_full_rfatt_list_items), +}; + +static const struct b43_bbatt b43_full_bbatt_list_items[] = { + { .att = 0, }, + { .att = 1, }, + { .att = 2, }, + { .att = 3, }, + { .att = 4, }, + { .att = 5, }, + { .att = 6, }, + { .att = 7, }, + { .att = 8, }, + { .att = 9, }, + { .att = 10, }, + { .att = 11, }, +}; +static const struct b43_bbatt_list b43_full_bbatt_list = { + .list = b43_full_bbatt_list_items, + .len = ARRAY_SIZE(b43_full_bbatt_list_items), +}; +#endif /* B43_CALIB_ALL_LOCTLS */ + +static void lo_measure(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + struct b43_loctl loctl = { + .i = 0, + .q = 0, + }; + struct b43_loctl *ploctl; + int max_rx_gain; + int rfidx, bbidx; + const struct b43_bbatt_list *bbatt_list; + const struct b43_rfatt_list *rfatt_list; + + /* Values from the "TXCTL Register and Value Table" */ + u16 txctl_reg; + u16 txctl_value; + u16 pad_mix_gain; + + bbatt_list = &lo->bbatt_list; + rfatt_list = &lo->rfatt_list; +#if B43_CALIB_ALL_LOCTLS + bbatt_list = &b43_full_bbatt_list; + rfatt_list = &b43_full_rfatt_list; +#endif + + txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain); + + for (rfidx = 0; rfidx < rfatt_list->len; rfidx++) { + + b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43) + & 0xFFF0) | + rfatt_list->list[rfidx].att); + b43_radio_write16(dev, txctl_reg, + (b43_radio_read16(dev, txctl_reg) + & ~txctl_value) + | (rfatt_list->list[rfidx].with_padmix ? + txctl_value : 0)); + + for (bbidx = 0; bbidx < bbatt_list->len; bbidx++) { + if (lo->rebuild) { +#if B43_CALIB_ALL_LOCTLS + ploctl = b43_get_lo_g_ctl(dev, + &rfatt_list->list[rfidx], + &bbatt_list->list[bbidx]); +#else + ploctl = b43_get_lo_g_ctl_nopadmix(dev, + &rfatt_list-> + list[rfidx], + &bbatt_list-> + list[bbidx]); +#endif + } else { + ploctl = b43_get_lo_g_ctl(dev, + &rfatt_list->list[rfidx], + &bbatt_list->list[bbidx]); + if (!ploctl->used) + continue; + } + memcpy(&loctl, ploctl, sizeof(loctl)); + loctl.i = 0; + loctl.q = 0; + + max_rx_gain = rfatt_list->list[rfidx].att * 2; + max_rx_gain += bbatt_list->list[bbidx].att / 2; + if (rfatt_list->list[rfidx].with_padmix) + max_rx_gain -= pad_mix_gain; + if (has_loopback_gain(phy)) + max_rx_gain += phy->max_lb_gain; + lo_measure_gain_values(dev, max_rx_gain, + has_loopback_gain(phy)); + + b43_phy_set_baseband_attenuation(dev, + bbatt_list->list[bbidx].att); + lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain); + if (phy->type == B43_PHYTYPE_B) { + loctl.i++; + loctl.q++; + } + b43_loctl_set_calibrated(&loctl, 1); + memcpy(ploctl, &loctl, sizeof(loctl)); + } + } +} + +#if B43_DEBUG +static void do_validate_loctl(struct b43_wldev *dev, struct b43_loctl *control) +{ + const int is_initializing = (b43_status(dev) == B43_STAT_UNINIT); + int i = control->i; + int q = control->q; + + if (b43_loctl_is_calibrated(control)) { + if ((abs(i) > 16) || (abs(q) > 16)) + goto error; + } else { + if (control->used) + goto error; + if (dev->phy.lo_control->rebuild) { + control->i = 0; + control->q = 0; + if ((i != B43_LOCTL_POISON) || + (q != B43_LOCTL_POISON)) + goto error; + } + } + if (is_initializing && control->used) + goto error; + + return; +error: + b43err(dev->wl, "LO control pair validation failed " + "(I: %d, Q: %d, used %u, calib: %u, initing: %d)\n", + i, q, control->used, + b43_loctl_is_calibrated(control), + is_initializing); +} + +static void validate_all_loctls(struct b43_wldev *dev) +{ + b43_call_for_each_loctl(dev, do_validate_loctl); +} + +static void do_reset_calib(struct b43_wldev *dev, struct b43_loctl *control) +{ + if (dev->phy.lo_control->rebuild || + control->used) { + b43_loctl_set_calibrated(control, 0); + control->i = B43_LOCTL_POISON; + control->q = B43_LOCTL_POISON; + } +} + +static void reset_all_loctl_calibration_states(struct b43_wldev *dev) +{ + b43_call_for_each_loctl(dev, do_reset_calib); +} + +#else /* B43_DEBUG */ +static inline void validate_all_loctls(struct b43_wldev *dev) { } +static inline void reset_all_loctl_calibration_states(struct b43_wldev *dev) { } +#endif /* B43_DEBUG */ + +void b43_lo_g_measure(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct lo_g_saved_values uninitialized_var(sav); + + B43_WARN_ON((phy->type != B43_PHYTYPE_B) && + (phy->type != B43_PHYTYPE_G)); + + sav.old_channel = phy->channel; + lo_measure_setup(dev, &sav); + reset_all_loctl_calibration_states(dev); + lo_measure(dev); + lo_measure_restore(dev, &sav); + + validate_all_loctls(dev); + + phy->lo_control->lo_measured = 1; + phy->lo_control->rebuild = 0; +} + +#if B43_DEBUG +static void validate_loctl_calibration(struct b43_wldev *dev, + struct b43_loctl *loctl, + struct b43_rfatt *rfatt, + struct b43_bbatt *bbatt) +{ + if (b43_loctl_is_calibrated(loctl)) + return; + if (!dev->phy.lo_control->lo_measured) { + /* On init we set the attenuation values before we + * calibrated the LO. I guess that's OK. */ + return; + } + b43err(dev->wl, "Adjusting Local Oscillator to an uncalibrated " + "control pair: rfatt=%u,%spadmix bbatt=%u\n", + rfatt->att, + (rfatt->with_padmix) ? "" : "no-", + bbatt->att); +} +#else +static inline void validate_loctl_calibration(struct b43_wldev *dev, + struct b43_loctl *loctl, + struct b43_rfatt *rfatt, + struct b43_bbatt *bbatt) +{ +} +#endif + +static inline void fixup_rfatt_for_txcontrol(struct b43_rfatt *rf, + u8 tx_control) +{ + if (tx_control & B43_TXCTL_TXMIX) { + if (rf->att < 5) + rf->att = 4; + } +} + +void b43_lo_g_adjust(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_rfatt rf; + struct b43_loctl *loctl; + + memcpy(&rf, &phy->rfatt, sizeof(rf)); + fixup_rfatt_for_txcontrol(&rf, phy->tx_control); + + loctl = b43_get_lo_g_ctl(dev, &rf, &phy->bbatt); + validate_loctl_calibration(dev, loctl, &rf, &phy->bbatt); + b43_lo_write(dev, loctl); +} + +void b43_lo_g_adjust_to(struct b43_wldev *dev, + u16 rfatt, u16 bbatt, u16 tx_control) +{ + struct b43_rfatt rf; + struct b43_bbatt bb; + struct b43_loctl *loctl; + + memset(&rf, 0, sizeof(rf)); + memset(&bb, 0, sizeof(bb)); + rf.att = rfatt; + bb.att = bbatt; + fixup_rfatt_for_txcontrol(&rf, tx_control); + loctl = b43_get_lo_g_ctl(dev, &rf, &bb); + validate_loctl_calibration(dev, loctl, &rf, &bb); + b43_lo_write(dev, loctl); +} + +static void do_mark_unused(struct b43_wldev *dev, struct b43_loctl *control) +{ + control->used = 0; +} + +void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + + b43_call_for_each_loctl(dev, do_mark_unused); + lo->rebuild = 1; +} + +void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_rfatt rf; + + memcpy(&rf, &phy->rfatt, sizeof(rf)); + fixup_rfatt_for_txcontrol(&rf, phy->tx_control); + + b43_get_lo_g_ctl(dev, &rf, &phy->bbatt)->used = 1; +} diff --git a/drivers/net/wireless/b43/lo.h b/drivers/net/wireless/b43/lo.h new file mode 100644 index 000000000000..455615d1f8c6 --- /dev/null +++ b/drivers/net/wireless/b43/lo.h @@ -0,0 +1,112 @@ +#ifndef B43_LO_H_ +#define B43_LO_H_ + +#include "phy.h" + +struct b43_wldev; + +/* Local Oscillator control value-pair. */ +struct b43_loctl { + /* Control values. */ + s8 i; + s8 q; + /* "Used by hardware" flag. */ + bool used; +#ifdef CONFIG_B43_DEBUG + /* Is this lo-control-array entry calibrated? */ + bool calibrated; +#endif +}; + +/* Debugging: Poison value for i and q values. */ +#define B43_LOCTL_POISON 111 + +/* loctl->calibrated debugging mechanism */ +#ifdef CONFIG_B43_DEBUG +static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl, + bool calibrated) +{ + loctl->calibrated = calibrated; +} +static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl) +{ + return loctl->calibrated; +} +#else +static inline void b43_loctl_set_calibrated(struct b43_loctl *loctl, + bool calibrated) +{ +} +static inline bool b43_loctl_is_calibrated(struct b43_loctl *loctl) +{ + return 1; +} +#endif + +/* TX Power LO Control Array. + * Value-pairs to adjust the LocalOscillator are stored + * in this structure. + * There are two different set of values. One for "Flag is Set" + * and one for "Flag is Unset". + * By "Flag" the flag in struct b43_rfatt is meant. + * The Value arrays are two-dimensional. The first index + * is the baseband attenuation and the second index + * is the radio attenuation. + * Use b43_get_lo_g_ctl() to retrieve a value from the lists. + */ +struct b43_txpower_lo_control { +#define B43_NR_BB 12 +#define B43_NR_RF 16 + /* LO Control values, with PAD Mixer */ + struct b43_loctl with_padmix[B43_NR_BB][B43_NR_RF]; + /* LO Control values, without PAD Mixer */ + struct b43_loctl no_padmix[B43_NR_BB][B43_NR_RF]; + + /* Flag to indicate a complete rebuild of the two tables above + * to the LO measuring code. */ + bool rebuild; + + /* Lists of valid RF and BB attenuation values for this device. */ + struct b43_rfatt_list rfatt_list; + struct b43_bbatt_list bbatt_list; + + /* Current TX Bias value */ + u8 tx_bias; + /* Current TX Magnification Value (if used by the device) */ + u8 tx_magn; + + /* GPHY LO is measured. */ + bool lo_measured; + + /* Saved device PowerVector */ + u64 power_vector; +}; + +/* Measure the BPHY Local Oscillator. */ +void b43_lo_b_measure(struct b43_wldev *dev); +/* Measure the BPHY/GPHY Local Oscillator. */ +void b43_lo_g_measure(struct b43_wldev *dev); + +/* Adjust the Local Oscillator to the saved attenuation + * and txctl values. + */ +void b43_lo_g_adjust(struct b43_wldev *dev); +/* Adjust to specific values. */ +void b43_lo_g_adjust_to(struct b43_wldev *dev, + u16 rfatt, u16 bbatt, u16 tx_control); + +/* Mark all possible b43_lo_g_ctl as "unused" */ +void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev); +/* Mark the b43_lo_g_ctl corresponding to the current + * attenuation values as used. + */ +void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev); + +/* Get a reference to a LO Control value pair in the + * TX Power LO Control Array. + */ +struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev, + const struct b43_rfatt *rfatt, + const struct b43_bbatt *bbatt); + +#endif /* B43_LO_H_ */ diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c new file mode 100644 index 000000000000..184ebe3ed738 --- /dev/null +++ b/drivers/net/wireless/b43/main.c @@ -0,0 +1,4091 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> + Copyright (c) 2005 Stefano Brivio <st3@riseup.net> + Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> + Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> + + Some parts of the code in this file are derived from the ipw2200 + driver Copyright(c) 2003 - 2004 Intel Corporation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/moduleparam.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <linux/version.h> +#include <linux/firmware.h> +#include <linux/wireless.h> +#include <linux/workqueue.h> +#include <linux/skbuff.h> +#include <linux/dma-mapping.h> +#include <asm/unaligned.h> + +#include "b43.h" +#include "main.h" +#include "debugfs.h" +#include "phy.h" +#include "dma.h" +#include "pio.h" +#include "sysfs.h" +#include "xmit.h" +#include "sysfs.h" +#include "lo.h" +#include "pcmcia.h" + +MODULE_DESCRIPTION("Broadcom B43 wireless driver"); +MODULE_AUTHOR("Martin Langer"); +MODULE_AUTHOR("Stefano Brivio"); +MODULE_AUTHOR("Michael Buesch"); +MODULE_LICENSE("GPL"); + +extern char *nvram_get(char *name); + +#if defined(CONFIG_B43_DMA) && defined(CONFIG_B43_PIO) +static int modparam_pio; +module_param_named(pio, modparam_pio, int, 0444); +MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode"); +#elif defined(CONFIG_B43_DMA) +# define modparam_pio 0 +#elif defined(CONFIG_B43_PIO) +# define modparam_pio 1 +#endif + +static int modparam_bad_frames_preempt; +module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); +MODULE_PARM_DESC(bad_frames_preempt, + "enable(1) / disable(0) Bad Frames Preemption"); + +static int modparam_short_retry = B43_DEFAULT_SHORT_RETRY_LIMIT; +module_param_named(short_retry, modparam_short_retry, int, 0444); +MODULE_PARM_DESC(short_retry, "Short-Retry-Limit (0 - 15)"); + +static int modparam_long_retry = B43_DEFAULT_LONG_RETRY_LIMIT; +module_param_named(long_retry, modparam_long_retry, int, 0444); +MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)"); + +static int modparam_noleds; +module_param_named(noleds, modparam_noleds, int, 0444); +MODULE_PARM_DESC(noleds, "Turn off all LED activity"); + +static char modparam_fwpostfix[16]; +module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); +MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); + +static int modparam_mon_keep_bad; +module_param_named(mon_keep_bad, modparam_mon_keep_bad, int, 0444); +MODULE_PARM_DESC(mon_keep_bad, "Keep bad frames in monitor mode"); + +static int modparam_mon_keep_badplcp; +module_param_named(mon_keep_badplcp, modparam_mon_keep_bad, int, 0444); +MODULE_PARM_DESC(mon_keep_badplcp, "Keep frames with bad PLCP in monitor mode"); + +static int modparam_hwpctl; +module_param_named(hwpctl, modparam_hwpctl, int, 0444); +MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); + +static int modparam_nohwcrypt; +module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); +MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); + +static const struct ssb_device_id b43_ssb_tbl[] = { + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), + SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), + SSB_DEVTABLE_END +}; + +MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); + +/* Channel and ratetables are shared for all devices. + * They can't be const, because ieee80211 puts some precalculated + * data in there. This data is the same for all devices, so we don't + * get concurrency issues */ +#define RATETAB_ENT(_rateid, _flags) \ + { \ + .rate = B43_RATE_TO_BASE100KBPS(_rateid), \ + .val = (_rateid), \ + .val2 = (_rateid), \ + .flags = (_flags), \ + } +static struct ieee80211_rate __b43_ratetable[] = { + RATETAB_ENT(B43_CCK_RATE_1MB, IEEE80211_RATE_CCK), + RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_CCK_2), + RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_CCK_2), + RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_CCK_2), + RATETAB_ENT(B43_OFDM_RATE_6MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_9MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_12MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_18MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_24MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_36MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_48MB, IEEE80211_RATE_OFDM), + RATETAB_ENT(B43_OFDM_RATE_54MB, IEEE80211_RATE_OFDM), +}; + +#define b43_a_ratetable (__b43_ratetable + 4) +#define b43_a_ratetable_size 8 +#define b43_b_ratetable (__b43_ratetable + 0) +#define b43_b_ratetable_size 4 +#define b43_g_ratetable (__b43_ratetable + 0) +#define b43_g_ratetable_size 12 + +#define CHANTAB_ENT(_chanid, _freq) \ + { \ + .chan = (_chanid), \ + .freq = (_freq), \ + .val = (_chanid), \ + .flag = IEEE80211_CHAN_W_SCAN | \ + IEEE80211_CHAN_W_ACTIVE_SCAN | \ + IEEE80211_CHAN_W_IBSS, \ + .power_level = 0xFF, \ + .antenna_max = 0xFF, \ + } +static struct ieee80211_channel b43_bg_chantable[] = { + CHANTAB_ENT(1, 2412), + CHANTAB_ENT(2, 2417), + CHANTAB_ENT(3, 2422), + CHANTAB_ENT(4, 2427), + CHANTAB_ENT(5, 2432), + CHANTAB_ENT(6, 2437), + CHANTAB_ENT(7, 2442), + CHANTAB_ENT(8, 2447), + CHANTAB_ENT(9, 2452), + CHANTAB_ENT(10, 2457), + CHANTAB_ENT(11, 2462), + CHANTAB_ENT(12, 2467), + CHANTAB_ENT(13, 2472), + CHANTAB_ENT(14, 2484), +}; + +#define b43_bg_chantable_size ARRAY_SIZE(b43_bg_chantable) +static struct ieee80211_channel b43_a_chantable[] = { + CHANTAB_ENT(36, 5180), + CHANTAB_ENT(40, 5200), + CHANTAB_ENT(44, 5220), + CHANTAB_ENT(48, 5240), + CHANTAB_ENT(52, 5260), + CHANTAB_ENT(56, 5280), + CHANTAB_ENT(60, 5300), + CHANTAB_ENT(64, 5320), + CHANTAB_ENT(149, 5745), + CHANTAB_ENT(153, 5765), + CHANTAB_ENT(157, 5785), + CHANTAB_ENT(161, 5805), + CHANTAB_ENT(165, 5825), +}; + +#define b43_a_chantable_size ARRAY_SIZE(b43_a_chantable) + +static void b43_wireless_core_exit(struct b43_wldev *dev); +static int b43_wireless_core_init(struct b43_wldev *dev); +static void b43_wireless_core_stop(struct b43_wldev *dev); +static int b43_wireless_core_start(struct b43_wldev *dev); + +static int b43_ratelimit(struct b43_wl *wl) +{ + if (!wl || !wl->current_dev) + return 1; + if (b43_status(wl->current_dev) < B43_STAT_STARTED) + return 1; + /* We are up and running. + * Ratelimit the messages to avoid DoS over the net. */ + return net_ratelimit(); +} + +void b43info(struct b43_wl *wl, const char *fmt, ...) +{ + va_list args; + + if (!b43_ratelimit(wl)) + return; + va_start(args, fmt); + printk(KERN_INFO "b43-%s: ", + (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); + vprintk(fmt, args); + va_end(args); +} + +void b43err(struct b43_wl *wl, const char *fmt, ...) +{ + va_list args; + + if (!b43_ratelimit(wl)) + return; + va_start(args, fmt); + printk(KERN_ERR "b43-%s ERROR: ", + (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); + vprintk(fmt, args); + va_end(args); +} + +void b43warn(struct b43_wl *wl, const char *fmt, ...) +{ + va_list args; + + if (!b43_ratelimit(wl)) + return; + va_start(args, fmt); + printk(KERN_WARNING "b43-%s warning: ", + (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); + vprintk(fmt, args); + va_end(args); +} + +#if B43_DEBUG +void b43dbg(struct b43_wl *wl, const char *fmt, ...) +{ + va_list args; + + va_start(args, fmt); + printk(KERN_DEBUG "b43-%s debug: ", + (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); + vprintk(fmt, args); + va_end(args); +} +#endif /* DEBUG */ + +static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) +{ + u32 macctl; + + B43_WARN_ON(offset % 4 != 0); + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + if (macctl & B43_MACCTL_BE) + val = swab32(val); + + b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); + mmiowb(); + b43_write32(dev, B43_MMIO_RAM_DATA, val); +} + +static inline + void b43_shm_control_word(struct b43_wldev *dev, u16 routing, u16 offset) +{ + u32 control; + + /* "offset" is the WORD offset. */ + + control = routing; + control <<= 16; + control |= offset; + b43_write32(dev, B43_MMIO_SHM_CONTROL, control); +} + +u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) +{ + u32 ret; + + if (routing == B43_SHM_SHARED) { + B43_WARN_ON(offset & 0x0001); + if (offset & 0x0003) { + /* Unaligned access */ + b43_shm_control_word(dev, routing, offset >> 2); + ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); + ret <<= 16; + b43_shm_control_word(dev, routing, (offset >> 2) + 1); + ret |= b43_read16(dev, B43_MMIO_SHM_DATA); + + return ret; + } + offset >>= 2; + } + b43_shm_control_word(dev, routing, offset); + ret = b43_read32(dev, B43_MMIO_SHM_DATA); + + return ret; +} + +u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset) +{ + u16 ret; + + if (routing == B43_SHM_SHARED) { + B43_WARN_ON(offset & 0x0001); + if (offset & 0x0003) { + /* Unaligned access */ + b43_shm_control_word(dev, routing, offset >> 2); + ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); + + return ret; + } + offset >>= 2; + } + b43_shm_control_word(dev, routing, offset); + ret = b43_read16(dev, B43_MMIO_SHM_DATA); + + return ret; +} + +void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) +{ + if (routing == B43_SHM_SHARED) { + B43_WARN_ON(offset & 0x0001); + if (offset & 0x0003) { + /* Unaligned access */ + b43_shm_control_word(dev, routing, offset >> 2); + mmiowb(); + b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, + (value >> 16) & 0xffff); + mmiowb(); + b43_shm_control_word(dev, routing, (offset >> 2) + 1); + mmiowb(); + b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff); + return; + } + offset >>= 2; + } + b43_shm_control_word(dev, routing, offset); + mmiowb(); + b43_write32(dev, B43_MMIO_SHM_DATA, value); +} + +void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) +{ + if (routing == B43_SHM_SHARED) { + B43_WARN_ON(offset & 0x0001); + if (offset & 0x0003) { + /* Unaligned access */ + b43_shm_control_word(dev, routing, offset >> 2); + mmiowb(); + b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); + return; + } + offset >>= 2; + } + b43_shm_control_word(dev, routing, offset); + mmiowb(); + b43_write16(dev, B43_MMIO_SHM_DATA, value); +} + +/* Read HostFlags */ +u32 b43_hf_read(struct b43_wldev * dev) +{ + u32 ret; + + ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); + ret <<= 16; + ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); + + return ret; +} + +/* Write HostFlags */ +void b43_hf_write(struct b43_wldev *dev, u32 value) +{ + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_HOSTFLO, (value & 0x0000FFFF)); + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_HOSTFHI, ((value & 0xFFFF0000) >> 16)); +} + +void b43_tsf_read(struct b43_wldev *dev, u64 * tsf) +{ + /* We need to be careful. As we read the TSF from multiple + * registers, we should take care of register overflows. + * In theory, the whole tsf read process should be atomic. + * We try to be atomic here, by restaring the read process, + * if any of the high registers changed (overflew). + */ + if (dev->dev->id.revision >= 3) { + u32 low, high, high2; + + do { + high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); + low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); + high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); + } while (unlikely(high != high2)); + + *tsf = high; + *tsf <<= 32; + *tsf |= low; + } else { + u64 tmp; + u16 v0, v1, v2, v3; + u16 test1, test2, test3; + + do { + v3 = b43_read16(dev, B43_MMIO_TSF_3); + v2 = b43_read16(dev, B43_MMIO_TSF_2); + v1 = b43_read16(dev, B43_MMIO_TSF_1); + v0 = b43_read16(dev, B43_MMIO_TSF_0); + + test3 = b43_read16(dev, B43_MMIO_TSF_3); + test2 = b43_read16(dev, B43_MMIO_TSF_2); + test1 = b43_read16(dev, B43_MMIO_TSF_1); + } while (v3 != test3 || v2 != test2 || v1 != test1); + + *tsf = v3; + *tsf <<= 48; + tmp = v2; + tmp <<= 32; + *tsf |= tmp; + tmp = v1; + tmp <<= 16; + *tsf |= tmp; + *tsf |= v0; + } +} + +static void b43_time_lock(struct b43_wldev *dev) +{ + u32 macctl; + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl |= B43_MACCTL_TBTTHOLD; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Commit the write */ + b43_read32(dev, B43_MMIO_MACCTL); +} + +static void b43_time_unlock(struct b43_wldev *dev) +{ + u32 macctl; + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_TBTTHOLD; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Commit the write */ + b43_read32(dev, B43_MMIO_MACCTL); +} + +static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) +{ + /* Be careful with the in-progress timer. + * First zero out the low register, so we have a full + * register-overflow duration to complete the operation. + */ + if (dev->dev->id.revision >= 3) { + u32 lo = (tsf & 0x00000000FFFFFFFFULL); + u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32; + + b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0); + mmiowb(); + b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi); + mmiowb(); + b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo); + } else { + u16 v0 = (tsf & 0x000000000000FFFFULL); + u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16; + u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32; + u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48; + + b43_write16(dev, B43_MMIO_TSF_0, 0); + mmiowb(); + b43_write16(dev, B43_MMIO_TSF_3, v3); + mmiowb(); + b43_write16(dev, B43_MMIO_TSF_2, v2); + mmiowb(); + b43_write16(dev, B43_MMIO_TSF_1, v1); + mmiowb(); + b43_write16(dev, B43_MMIO_TSF_0, v0); + } +} + +void b43_tsf_write(struct b43_wldev *dev, u64 tsf) +{ + b43_time_lock(dev); + b43_tsf_write_locked(dev, tsf); + b43_time_unlock(dev); +} + +static +void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac) +{ + static const u8 zero_addr[ETH_ALEN] = { 0 }; + u16 data; + + if (!mac) + mac = zero_addr; + + offset |= 0x0020; + b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); + + data = mac[0]; + data |= mac[1] << 8; + b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); + data = mac[2]; + data |= mac[3] << 8; + b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); + data = mac[4]; + data |= mac[5] << 8; + b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); +} + +static void b43_write_mac_bssid_templates(struct b43_wldev *dev) +{ + const u8 *mac; + const u8 *bssid; + u8 mac_bssid[ETH_ALEN * 2]; + int i; + u32 tmp; + + bssid = dev->wl->bssid; + mac = dev->wl->mac_addr; + + b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); + + memcpy(mac_bssid, mac, ETH_ALEN); + memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); + + /* Write our MAC address and BSSID to template ram */ + for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { + tmp = (u32) (mac_bssid[i + 0]); + tmp |= (u32) (mac_bssid[i + 1]) << 8; + tmp |= (u32) (mac_bssid[i + 2]) << 16; + tmp |= (u32) (mac_bssid[i + 3]) << 24; + b43_ram_write(dev, 0x20 + i, tmp); + } +} + +static void b43_upload_card_macaddress(struct b43_wldev *dev, + const u8 * mac_addr) +{ + if (mac_addr) + memcpy(dev->wl->mac_addr, mac_addr, ETH_ALEN); + else + memset(dev->wl->mac_addr, 0, ETH_ALEN); + b43_write_mac_bssid_templates(dev); + b43_macfilter_set(dev, B43_MACFILTER_SELF, mac_addr); +} + +static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) +{ + /* slot_time is in usec. */ + if (dev->phy.type != B43_PHYTYPE_G) + return; + b43_write16(dev, 0x684, 510 + slot_time); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); +} + +static void b43_short_slot_timing_enable(struct b43_wldev *dev) +{ + b43_set_slot_time(dev, 9); + dev->short_slot = 1; +} + +static void b43_short_slot_timing_disable(struct b43_wldev *dev) +{ + b43_set_slot_time(dev, 20); + dev->short_slot = 0; +} + +/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. + * Returns the _previously_ enabled IRQ mask. + */ +static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask) +{ + u32 old_mask; + + old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask); + + return old_mask; +} + +/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable. + * Returns the _previously_ enabled IRQ mask. + */ +static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask) +{ + u32 old_mask; + + old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask); + + return old_mask; +} + +/* Synchronize IRQ top- and bottom-half. + * IRQs must be masked before calling this. + * This must not be called with the irq_lock held. + */ +static void b43_synchronize_irq(struct b43_wldev *dev) +{ + synchronize_irq(dev->dev->irq); + tasklet_kill(&dev->isr_tasklet); +} + +/* DummyTransmission function, as documented on + * http://bcm-specs.sipsolutions.net/DummyTransmission + */ +void b43_dummy_transmission(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + unsigned int i, max_loop; + u16 value; + u32 buffer[5] = { + 0x00000000, + 0x00D40000, + 0x00000000, + 0x01000000, + 0x00000000, + }; + + switch (phy->type) { + case B43_PHYTYPE_A: + max_loop = 0x1E; + buffer[0] = 0x000201CC; + break; + case B43_PHYTYPE_B: + case B43_PHYTYPE_G: + max_loop = 0xFA; + buffer[0] = 0x000B846E; + break; + default: + B43_WARN_ON(1); + return; + } + + for (i = 0; i < 5; i++) + b43_ram_write(dev, i * 4, buffer[i]); + + /* Commit writes */ + b43_read32(dev, B43_MMIO_MACCTL); + + b43_write16(dev, 0x0568, 0x0000); + b43_write16(dev, 0x07C0, 0x0000); + value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0); + b43_write16(dev, 0x050C, value); + b43_write16(dev, 0x0508, 0x0000); + b43_write16(dev, 0x050A, 0x0000); + b43_write16(dev, 0x054C, 0x0000); + b43_write16(dev, 0x056A, 0x0014); + b43_write16(dev, 0x0568, 0x0826); + b43_write16(dev, 0x0500, 0x0000); + b43_write16(dev, 0x0502, 0x0030); + + if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) + b43_radio_write16(dev, 0x0051, 0x0017); + for (i = 0x00; i < max_loop; i++) { + value = b43_read16(dev, 0x050E); + if (value & 0x0080) + break; + udelay(10); + } + for (i = 0x00; i < 0x0A; i++) { + value = b43_read16(dev, 0x050E); + if (value & 0x0400) + break; + udelay(10); + } + for (i = 0x00; i < 0x0A; i++) { + value = b43_read16(dev, 0x0690); + if (!(value & 0x0100)) + break; + udelay(10); + } + if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) + b43_radio_write16(dev, 0x0051, 0x0037); +} + +static void key_write(struct b43_wldev *dev, + u8 index, u8 algorithm, const u8 * key) +{ + unsigned int i; + u32 offset; + u16 value; + u16 kidx; + + /* Key index/algo block */ + kidx = b43_kidx_to_fw(dev, index); + value = ((kidx << 4) | algorithm); + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); + + /* Write the key to the Key Table Pointer offset */ + offset = dev->ktp + (index * B43_SEC_KEYSIZE); + for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { + value = key[i]; + value |= (u16) (key[i + 1]) << 8; + b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); + } +} + +static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr) +{ + u32 addrtmp[2] = { 0, 0, }; + u8 per_sta_keys_start = 8; + + if (b43_new_kidx_api(dev)) + per_sta_keys_start = 4; + + B43_WARN_ON(index < per_sta_keys_start); + /* We have two default TX keys and possibly two default RX keys. + * Physical mac 0 is mapped to physical key 4 or 8, depending + * on the firmware version. + * So we must adjust the index here. + */ + index -= per_sta_keys_start; + + if (addr) { + addrtmp[0] = addr[0]; + addrtmp[0] |= ((u32) (addr[1]) << 8); + addrtmp[0] |= ((u32) (addr[2]) << 16); + addrtmp[0] |= ((u32) (addr[3]) << 24); + addrtmp[1] = addr[4]; + addrtmp[1] |= ((u32) (addr[5]) << 8); + } + + if (dev->dev->id.revision >= 5) { + /* Receive match transmitter address mechanism */ + b43_shm_write32(dev, B43_SHM_RCMTA, + (index * 2) + 0, addrtmp[0]); + b43_shm_write16(dev, B43_SHM_RCMTA, + (index * 2) + 1, addrtmp[1]); + } else { + /* RXE (Receive Engine) and + * PSM (Programmable State Machine) mechanism + */ + if (index < 8) { + /* TODO write to RCM 16, 19, 22 and 25 */ + } else { + b43_shm_write32(dev, B43_SHM_SHARED, + B43_SHM_SH_PSM + (index * 6) + 0, + addrtmp[0]); + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_PSM + (index * 6) + 4, + addrtmp[1]); + } + } +} + +static void do_key_write(struct b43_wldev *dev, + u8 index, u8 algorithm, + const u8 * key, size_t key_len, const u8 * mac_addr) +{ + u8 buf[B43_SEC_KEYSIZE] = { 0, }; + u8 per_sta_keys_start = 8; + + if (b43_new_kidx_api(dev)) + per_sta_keys_start = 4; + + B43_WARN_ON(index >= dev->max_nr_keys); + B43_WARN_ON(key_len > B43_SEC_KEYSIZE); + + if (index >= per_sta_keys_start) + keymac_write(dev, index, NULL); /* First zero out mac. */ + if (key) + memcpy(buf, key, key_len); + key_write(dev, index, algorithm, buf); + if (index >= per_sta_keys_start) + keymac_write(dev, index, mac_addr); + + dev->key[index].algorithm = algorithm; +} + +static int b43_key_write(struct b43_wldev *dev, + int index, u8 algorithm, + const u8 * key, size_t key_len, + const u8 * mac_addr, + struct ieee80211_key_conf *keyconf) +{ + int i; + int sta_keys_start; + + if (key_len > B43_SEC_KEYSIZE) + return -EINVAL; + for (i = 0; i < dev->max_nr_keys; i++) { + /* Check that we don't already have this key. */ + B43_WARN_ON(dev->key[i].keyconf == keyconf); + } + if (index < 0) { + /* Either pairwise key or address is 00:00:00:00:00:00 + * for transmit-only keys. Search the index. */ + if (b43_new_kidx_api(dev)) + sta_keys_start = 4; + else + sta_keys_start = 8; + for (i = sta_keys_start; i < dev->max_nr_keys; i++) { + if (!dev->key[i].keyconf) { + /* found empty */ + index = i; + break; + } + } + if (index < 0) { + b43err(dev->wl, "Out of hardware key memory\n"); + return -ENOSPC; + } + } else + B43_WARN_ON(index > 3); + + do_key_write(dev, index, algorithm, key, key_len, mac_addr); + if ((index <= 3) && !b43_new_kidx_api(dev)) { + /* Default RX key */ + B43_WARN_ON(mac_addr); + do_key_write(dev, index + 4, algorithm, key, key_len, NULL); + } + keyconf->hw_key_idx = index; + dev->key[index].keyconf = keyconf; + + return 0; +} + +static int b43_key_clear(struct b43_wldev *dev, int index) +{ + if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys))) + return -EINVAL; + do_key_write(dev, index, B43_SEC_ALGO_NONE, + NULL, B43_SEC_KEYSIZE, NULL); + if ((index <= 3) && !b43_new_kidx_api(dev)) { + do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, + NULL, B43_SEC_KEYSIZE, NULL); + } + dev->key[index].keyconf = NULL; + + return 0; +} + +static void b43_clear_keys(struct b43_wldev *dev) +{ + int i; + + for (i = 0; i < dev->max_nr_keys; i++) + b43_key_clear(dev, i); +} + +void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) +{ + u32 macctl; + u16 ucstat; + bool hwps; + bool awake; + int i; + + B43_WARN_ON((ps_flags & B43_PS_ENABLED) && + (ps_flags & B43_PS_DISABLED)); + B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); + + if (ps_flags & B43_PS_ENABLED) { + hwps = 1; + } else if (ps_flags & B43_PS_DISABLED) { + hwps = 0; + } else { + //TODO: If powersave is not off and FIXME is not set and we are not in adhoc + // and thus is not an AP and we are associated, set bit 25 + } + if (ps_flags & B43_PS_AWAKE) { + awake = 1; + } else if (ps_flags & B43_PS_ASLEEP) { + awake = 0; + } else { + //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, + // or we are associated, or FIXME, or the latest PS-Poll packet sent was + // successful, set bit26 + } + +/* FIXME: For now we force awake-on and hwps-off */ + hwps = 0; + awake = 1; + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + if (hwps) + macctl |= B43_MACCTL_HWPS; + else + macctl &= ~B43_MACCTL_HWPS; + if (awake) + macctl |= B43_MACCTL_AWAKE; + else + macctl &= ~B43_MACCTL_AWAKE; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Commit write */ + b43_read32(dev, B43_MMIO_MACCTL); + if (awake && dev->dev->id.revision >= 5) { + /* Wait for the microcode to wake up. */ + for (i = 0; i < 100; i++) { + ucstat = b43_shm_read16(dev, B43_SHM_SHARED, + B43_SHM_SH_UCODESTAT); + if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) + break; + udelay(10); + } + } +} + +/* Turn the Analog ON/OFF */ +static void b43_switch_analog(struct b43_wldev *dev, int on) +{ + b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4); +} + +void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) +{ + u32 tmslow; + u32 macctl; + + flags |= B43_TMSLOW_PHYCLKEN; + flags |= B43_TMSLOW_PHYRESET; + ssb_device_enable(dev->dev, flags); + msleep(2); /* Wait for the PLL to turn on. */ + + /* Now take the PHY out of Reset again */ + tmslow = ssb_read32(dev->dev, SSB_TMSLOW); + tmslow |= SSB_TMSLOW_FGC; + tmslow &= ~B43_TMSLOW_PHYRESET; + ssb_write32(dev->dev, SSB_TMSLOW, tmslow); + ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ + msleep(1); + tmslow &= ~SSB_TMSLOW_FGC; + ssb_write32(dev->dev, SSB_TMSLOW, tmslow); + ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ + msleep(1); + + /* Turn Analog ON */ + b43_switch_analog(dev, 1); + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_GMODE; + if (flags & B43_TMSLOW_GMODE) + macctl |= B43_MACCTL_GMODE; + macctl |= B43_MACCTL_IHR_ENABLED; + b43_write32(dev, B43_MMIO_MACCTL, macctl); +} + +static void handle_irq_transmit_status(struct b43_wldev *dev) +{ + u32 v0, v1; + u16 tmp; + struct b43_txstatus stat; + + while (1) { + v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); + if (!(v0 & 0x00000001)) + break; + v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); + + stat.cookie = (v0 >> 16); + stat.seq = (v1 & 0x0000FFFF); + stat.phy_stat = ((v1 & 0x00FF0000) >> 16); + tmp = (v0 & 0x0000FFFF); + stat.frame_count = ((tmp & 0xF000) >> 12); + stat.rts_count = ((tmp & 0x0F00) >> 8); + stat.supp_reason = ((tmp & 0x001C) >> 2); + stat.pm_indicated = !!(tmp & 0x0080); + stat.intermediate = !!(tmp & 0x0040); + stat.for_ampdu = !!(tmp & 0x0020); + stat.acked = !!(tmp & 0x0002); + + b43_handle_txstatus(dev, &stat); + } +} + +static void drain_txstatus_queue(struct b43_wldev *dev) +{ + u32 dummy; + + if (dev->dev->id.revision < 5) + return; + /* Read all entries from the microcode TXstatus FIFO + * and throw them away. + */ + while (1) { + dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); + if (!(dummy & 0x00000001)) + break; + dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); + } +} + +static u32 b43_jssi_read(struct b43_wldev *dev) +{ + u32 val = 0; + + val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); + val <<= 16; + val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); + + return val; +} + +static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) +{ + b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); + b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); +} + +static void b43_generate_noise_sample(struct b43_wldev *dev) +{ + b43_jssi_write(dev, 0x7F7F7F7F); + b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, + b43_read32(dev, B43_MMIO_STATUS2_BITFIELD) + | (1 << 4)); + B43_WARN_ON(dev->noisecalc.channel_at_start != dev->phy.channel); +} + +static void b43_calculate_link_quality(struct b43_wldev *dev) +{ + /* Top half of Link Quality calculation. */ + + if (dev->noisecalc.calculation_running) + return; + dev->noisecalc.channel_at_start = dev->phy.channel; + dev->noisecalc.calculation_running = 1; + dev->noisecalc.nr_samples = 0; + + b43_generate_noise_sample(dev); +} + +static void handle_irq_noise(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 tmp; + u8 noise[4]; + u8 i, j; + s32 average; + + /* Bottom half of Link Quality calculation. */ + + B43_WARN_ON(!dev->noisecalc.calculation_running); + if (dev->noisecalc.channel_at_start != phy->channel) + goto drop_calculation; + *((u32 *) noise) = cpu_to_le32(b43_jssi_read(dev)); + if (noise[0] == 0x7F || noise[1] == 0x7F || + noise[2] == 0x7F || noise[3] == 0x7F) + goto generate_new; + + /* Get the noise samples. */ + B43_WARN_ON(dev->noisecalc.nr_samples >= 8); + i = dev->noisecalc.nr_samples; + noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); + noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); + noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); + noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); + dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; + dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; + dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; + dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; + dev->noisecalc.nr_samples++; + if (dev->noisecalc.nr_samples == 8) { + /* Calculate the Link Quality by the noise samples. */ + average = 0; + for (i = 0; i < 8; i++) { + for (j = 0; j < 4; j++) + average += dev->noisecalc.samples[i][j]; + } + average /= (8 * 4); + average *= 125; + average += 64; + average /= 128; + tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); + tmp = (tmp / 128) & 0x1F; + if (tmp >= 8) + average += 2; + else + average -= 25; + if (tmp == 8) + average -= 72; + else + average -= 48; + + dev->stats.link_noise = average; + drop_calculation: + dev->noisecalc.calculation_running = 0; + return; + } + generate_new: + b43_generate_noise_sample(dev); +} + +static void handle_irq_tbtt_indication(struct b43_wldev *dev) +{ + if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) { + ///TODO: PS TBTT + } else { + if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) + b43_power_saving_ctl_bits(dev, 0); + } + dev->reg124_set_0x4 = 0; + if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) + dev->reg124_set_0x4 = 1; +} + +static void handle_irq_atim_end(struct b43_wldev *dev) +{ + if (!dev->reg124_set_0x4 /*FIXME rename this variable */ ) + return; + b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, + b43_read32(dev, B43_MMIO_STATUS2_BITFIELD) + | 0x4); +} + +static void handle_irq_pmq(struct b43_wldev *dev) +{ + u32 tmp; + + //TODO: AP mode. + + while (1) { + tmp = b43_read32(dev, B43_MMIO_PS_STATUS); + if (!(tmp & 0x00000008)) + break; + } + /* 16bit write is odd, but correct. */ + b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); +} + +static void b43_write_template_common(struct b43_wldev *dev, + const u8 * data, u16 size, + u16 ram_offset, + u16 shm_size_offset, u8 rate) +{ + u32 i, tmp; + struct b43_plcp_hdr4 plcp; + + plcp.data = 0; + b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); + b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); + ram_offset += sizeof(u32); + /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. + * So leave the first two bytes of the next write blank. + */ + tmp = (u32) (data[0]) << 16; + tmp |= (u32) (data[1]) << 24; + b43_ram_write(dev, ram_offset, tmp); + ram_offset += sizeof(u32); + for (i = 2; i < size; i += sizeof(u32)) { + tmp = (u32) (data[i + 0]); + if (i + 1 < size) + tmp |= (u32) (data[i + 1]) << 8; + if (i + 2 < size) + tmp |= (u32) (data[i + 2]) << 16; + if (i + 3 < size) + tmp |= (u32) (data[i + 3]) << 24; + b43_ram_write(dev, ram_offset + i - 2, tmp); + } + b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, + size + sizeof(struct b43_plcp_hdr6)); +} + +static void b43_write_beacon_template(struct b43_wldev *dev, + u16 ram_offset, + u16 shm_size_offset, u8 rate) +{ + int len; + const u8 *data; + + B43_WARN_ON(!dev->cached_beacon); + len = min((size_t) dev->cached_beacon->len, + 0x200 - sizeof(struct b43_plcp_hdr6)); + data = (const u8 *)(dev->cached_beacon->data); + b43_write_template_common(dev, data, + len, ram_offset, shm_size_offset, rate); +} + +static void b43_write_probe_resp_plcp(struct b43_wldev *dev, + u16 shm_offset, u16 size, u8 rate) +{ + struct b43_plcp_hdr4 plcp; + u32 tmp; + __le16 dur; + + plcp.data = 0; + b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); + dur = ieee80211_generic_frame_duration(dev->wl->hw, + dev->wl->if_id, size, + B43_RATE_TO_BASE100KBPS(rate)); + /* Write PLCP in two parts and timing for packet transfer */ + tmp = le32_to_cpu(plcp.data); + b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF); + b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16); + b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur)); +} + +/* Instead of using custom probe response template, this function + * just patches custom beacon template by: + * 1) Changing packet type + * 2) Patching duration field + * 3) Stripping TIM + */ +static u8 *b43_generate_probe_resp(struct b43_wldev *dev, + u16 * dest_size, u8 rate) +{ + const u8 *src_data; + u8 *dest_data; + u16 src_size, elem_size, src_pos, dest_pos; + __le16 dur; + struct ieee80211_hdr *hdr; + + B43_WARN_ON(!dev->cached_beacon); + src_size = dev->cached_beacon->len; + src_data = (const u8 *)dev->cached_beacon->data; + + if (unlikely(src_size < 0x24)) { + b43dbg(dev->wl, "b43_generate_probe_resp: " "invalid beacon\n"); + return NULL; + } + + dest_data = kmalloc(src_size, GFP_ATOMIC); + if (unlikely(!dest_data)) + return NULL; + + /* 0x24 is offset of first variable-len Information-Element + * in beacon frame. + */ + memcpy(dest_data, src_data, 0x24); + src_pos = dest_pos = 0x24; + for (; src_pos < src_size - 2; src_pos += elem_size) { + elem_size = src_data[src_pos + 1] + 2; + if (src_data[src_pos] != 0x05) { /* TIM */ + memcpy(dest_data + dest_pos, src_data + src_pos, + elem_size); + dest_pos += elem_size; + } + } + *dest_size = dest_pos; + hdr = (struct ieee80211_hdr *)dest_data; + + /* Set the frame control. */ + hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_PROBE_RESP); + dur = ieee80211_generic_frame_duration(dev->wl->hw, + dev->wl->if_id, *dest_size, + B43_RATE_TO_BASE100KBPS(rate)); + hdr->duration_id = dur; + + return dest_data; +} + +static void b43_write_probe_resp_template(struct b43_wldev *dev, + u16 ram_offset, + u16 shm_size_offset, u8 rate) +{ + u8 *probe_resp_data; + u16 size; + + B43_WARN_ON(!dev->cached_beacon); + size = dev->cached_beacon->len; + probe_resp_data = b43_generate_probe_resp(dev, &size, rate); + if (unlikely(!probe_resp_data)) + return; + + /* Looks like PLCP headers plus packet timings are stored for + * all possible basic rates + */ + b43_write_probe_resp_plcp(dev, 0x31A, size, B43_CCK_RATE_1MB); + b43_write_probe_resp_plcp(dev, 0x32C, size, B43_CCK_RATE_2MB); + b43_write_probe_resp_plcp(dev, 0x33E, size, B43_CCK_RATE_5MB); + b43_write_probe_resp_plcp(dev, 0x350, size, B43_CCK_RATE_11MB); + + size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6)); + b43_write_template_common(dev, probe_resp_data, + size, ram_offset, shm_size_offset, rate); + kfree(probe_resp_data); +} + +static int b43_refresh_cached_beacon(struct b43_wldev *dev, + struct sk_buff *beacon) +{ + if (dev->cached_beacon) + kfree_skb(dev->cached_beacon); + dev->cached_beacon = beacon; + + return 0; +} + +static void b43_update_templates(struct b43_wldev *dev) +{ + u32 status; + + B43_WARN_ON(!dev->cached_beacon); + + b43_write_beacon_template(dev, 0x68, 0x18, B43_CCK_RATE_1MB); + b43_write_beacon_template(dev, 0x468, 0x1A, B43_CCK_RATE_1MB); + b43_write_probe_resp_template(dev, 0x268, 0x4A, B43_CCK_RATE_11MB); + + status = b43_read32(dev, B43_MMIO_STATUS2_BITFIELD); + status |= 0x03; + b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status); +} + +static void b43_refresh_templates(struct b43_wldev *dev, struct sk_buff *beacon) +{ + int err; + + err = b43_refresh_cached_beacon(dev, beacon); + if (unlikely(err)) + return; + b43_update_templates(dev); +} + +static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len) +{ + u32 tmp; + u16 i, len; + + len = min((u16) ssid_len, (u16) 0x100); + for (i = 0; i < len; i += sizeof(u32)) { + tmp = (u32) (ssid[i + 0]); + if (i + 1 < len) + tmp |= (u32) (ssid[i + 1]) << 8; + if (i + 2 < len) + tmp |= (u32) (ssid[i + 2]) << 16; + if (i + 3 < len) + tmp |= (u32) (ssid[i + 3]) << 24; + b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp); + } + b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len); +} + +static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) +{ + b43_time_lock(dev); + if (dev->dev->id.revision >= 3) { + b43_write32(dev, 0x188, (beacon_int << 16)); + } else { + b43_write16(dev, 0x606, (beacon_int >> 6)); + b43_write16(dev, 0x610, beacon_int); + } + b43_time_unlock(dev); +} + +static void handle_irq_beacon(struct b43_wldev *dev) +{ + u32 status; + + if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) + return; + + dev->irq_savedstate &= ~B43_IRQ_BEACON; + status = b43_read32(dev, B43_MMIO_STATUS2_BITFIELD); + + if (!dev->cached_beacon || ((status & 0x1) && (status & 0x2))) { + /* ACK beacon IRQ. */ + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); + dev->irq_savedstate |= B43_IRQ_BEACON; + if (dev->cached_beacon) + kfree_skb(dev->cached_beacon); + dev->cached_beacon = NULL; + return; + } + if (!(status & 0x1)) { + b43_write_beacon_template(dev, 0x68, 0x18, B43_CCK_RATE_1MB); + status |= 0x1; + b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status); + } + if (!(status & 0x2)) { + b43_write_beacon_template(dev, 0x468, 0x1A, B43_CCK_RATE_1MB); + status |= 0x2; + b43_write32(dev, B43_MMIO_STATUS2_BITFIELD, status); + } +} + +static void handle_irq_ucode_debug(struct b43_wldev *dev) +{ + //TODO +} + +/* Interrupt handler bottom-half */ +static void b43_interrupt_tasklet(struct b43_wldev *dev) +{ + u32 reason; + u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; + u32 merged_dma_reason = 0; + int i, activity = 0; + unsigned long flags; + + spin_lock_irqsave(&dev->wl->irq_lock, flags); + + B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED); + + reason = dev->irq_reason; + for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { + dma_reason[i] = dev->dma_reason[i]; + merged_dma_reason |= dma_reason[i]; + } + + if (unlikely(reason & B43_IRQ_MAC_TXERR)) + b43err(dev->wl, "MAC transmission error\n"); + + if (unlikely(reason & B43_IRQ_PHY_TXERR)) + b43err(dev->wl, "PHY transmission error\n"); + + if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | + B43_DMAIRQ_NONFATALMASK))) { + if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { + b43err(dev->wl, "Fatal DMA error: " + "0x%08X, 0x%08X, 0x%08X, " + "0x%08X, 0x%08X, 0x%08X\n", + dma_reason[0], dma_reason[1], + dma_reason[2], dma_reason[3], + dma_reason[4], dma_reason[5]); + b43_controller_restart(dev, "DMA error"); + mmiowb(); + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); + return; + } + if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { + b43err(dev->wl, "DMA error: " + "0x%08X, 0x%08X, 0x%08X, " + "0x%08X, 0x%08X, 0x%08X\n", + dma_reason[0], dma_reason[1], + dma_reason[2], dma_reason[3], + dma_reason[4], dma_reason[5]); + } + } + + if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) + handle_irq_ucode_debug(dev); + if (reason & B43_IRQ_TBTT_INDI) + handle_irq_tbtt_indication(dev); + if (reason & B43_IRQ_ATIM_END) + handle_irq_atim_end(dev); + if (reason & B43_IRQ_BEACON) + handle_irq_beacon(dev); + if (reason & B43_IRQ_PMQ) + handle_irq_pmq(dev); + if (reason & B43_IRQ_TXFIFO_FLUSH_OK) ; + /*TODO*/ if (reason & B43_IRQ_NOISESAMPLE_OK) + handle_irq_noise(dev); + + /* Check the DMA reason registers for received data. */ + if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { + if (b43_using_pio(dev)) + b43_pio_rx(dev->pio.queue0); + else + b43_dma_rx(dev->dma.rx_ring0); + /* We intentionally don't set "activity" to 1, here. */ + } + B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); + B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); + if (dma_reason[3] & B43_DMAIRQ_RX_DONE) { + if (b43_using_pio(dev)) + b43_pio_rx(dev->pio.queue3); + else + b43_dma_rx(dev->dma.rx_ring3); + activity = 1; + } + B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); + B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); + + if (reason & B43_IRQ_TX_OK) { + handle_irq_transmit_status(dev); + activity = 1; + //TODO: In AP mode, this also causes sending of powersave responses. + } + + if (!modparam_noleds) + b43_leds_update(dev, activity); + b43_interrupt_enable(dev, dev->irq_savedstate); + mmiowb(); + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); +} + +static void pio_irq_workaround(struct b43_wldev *dev, u16 base, int queueidx) +{ + u16 rxctl; + + rxctl = b43_read16(dev, base + B43_PIO_RXCTL); + if (rxctl & B43_PIO_RXCTL_DATAAVAILABLE) + dev->dma_reason[queueidx] |= B43_DMAIRQ_RX_DONE; + else + dev->dma_reason[queueidx] &= ~B43_DMAIRQ_RX_DONE; +} + +static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) +{ + if (b43_using_pio(dev) && + (dev->dev->id.revision < 3) && + (!(reason & B43_IRQ_PIO_WORKAROUND))) { + /* Apply a PIO specific workaround to the dma_reasons */ + pio_irq_workaround(dev, B43_MMIO_PIO1_BASE, 0); + pio_irq_workaround(dev, B43_MMIO_PIO2_BASE, 1); + pio_irq_workaround(dev, B43_MMIO_PIO3_BASE, 2); + pio_irq_workaround(dev, B43_MMIO_PIO4_BASE, 3); + } + + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); + + b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); + b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); + b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); + b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); + b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); + b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); +} + +/* Interrupt handler top-half */ +static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) +{ + irqreturn_t ret = IRQ_NONE; + struct b43_wldev *dev = dev_id; + u32 reason; + + if (!dev) + return IRQ_NONE; + + spin_lock(&dev->wl->irq_lock); + + if (b43_status(dev) < B43_STAT_STARTED) + goto out; + reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); + if (reason == 0xffffffff) /* shared IRQ */ + goto out; + ret = IRQ_HANDLED; + reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); + if (!reason) + goto out; + + dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) + & 0x0001DC00; + dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) + & 0x0000DC00; + dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) + & 0x0000DC00; + dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) + & 0x0001DC00; + dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) + & 0x0000DC00; + dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) + & 0x0000DC00; + + b43_interrupt_ack(dev, reason); + /* disable all IRQs. They are enabled again in the bottom half. */ + dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); + /* save the reason code and call our bottom half. */ + dev->irq_reason = reason; + tasklet_schedule(&dev->isr_tasklet); + out: + mmiowb(); + spin_unlock(&dev->wl->irq_lock); + + return ret; +} + +static void b43_release_firmware(struct b43_wldev *dev) +{ + release_firmware(dev->fw.ucode); + dev->fw.ucode = NULL; + release_firmware(dev->fw.pcm); + dev->fw.pcm = NULL; + release_firmware(dev->fw.initvals); + dev->fw.initvals = NULL; + release_firmware(dev->fw.initvals_band); + dev->fw.initvals_band = NULL; +} + +static void b43_print_fw_helptext(struct b43_wl *wl) +{ + b43err(wl, "You must go to " + "http://linuxwireless.org/en/users/Drivers/bcm43xx#devicefirmware " + "and download the correct firmware (version 4).\n"); +} + +static int do_request_fw(struct b43_wldev *dev, + const char *name, + const struct firmware **fw) +{ + const size_t plen = sizeof(modparam_fwpostfix) + 32; + char path[plen]; + struct b43_fw_header *hdr; + u32 size; + int err; + + if (!name) + return 0; + + snprintf(path, ARRAY_SIZE(path), + "b43%s/%s.fw", + modparam_fwpostfix, name); + err = request_firmware(fw, path, dev->dev->dev); + if (err) { + b43err(dev->wl, "Firmware file \"%s\" not found " + "or load failed.\n", path); + return err; + } + if ((*fw)->size < sizeof(struct b43_fw_header)) + goto err_format; + hdr = (struct b43_fw_header *)((*fw)->data); + switch (hdr->type) { + case B43_FW_TYPE_UCODE: + case B43_FW_TYPE_PCM: + size = be32_to_cpu(hdr->size); + if (size != (*fw)->size - sizeof(struct b43_fw_header)) + goto err_format; + /* fallthrough */ + case B43_FW_TYPE_IV: + if (hdr->ver != 1) + goto err_format; + break; + default: + goto err_format; + } + + return err; + +err_format: + b43err(dev->wl, "Firmware file \"%s\" format error.\n", path); + return -EPROTO; +} + +static int b43_request_firmware(struct b43_wldev *dev) +{ + struct b43_firmware *fw = &dev->fw; + const u8 rev = dev->dev->id.revision; + const char *filename; + u32 tmshigh; + int err; + + tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); + if (!fw->ucode) { + if ((rev >= 5) && (rev <= 10)) + filename = "ucode5"; + else if ((rev >= 11) && (rev <= 12)) + filename = "ucode11"; + else if (rev >= 13) + filename = "ucode13"; + else + goto err_no_ucode; + err = do_request_fw(dev, filename, &fw->ucode); + if (err) + goto err_load; + } + if (!fw->pcm) { + if ((rev >= 5) && (rev <= 10)) + filename = "pcm5"; + else if (rev >= 11) + filename = NULL; + else + goto err_no_pcm; + err = do_request_fw(dev, filename, &fw->pcm); + if (err) + goto err_load; + } + if (!fw->initvals) { + switch (dev->phy.type) { + case B43_PHYTYPE_A: + if ((rev >= 5) && (rev <= 10)) { + if (tmshigh & B43_TMSHIGH_GPHY) + filename = "a0g1initvals5"; + else + filename = "a0g0initvals5"; + } else + goto err_no_initvals; + break; + case B43_PHYTYPE_G: + if ((rev >= 5) && (rev <= 10)) + filename = "b0g0initvals5"; + else if (rev >= 13) + filename = "lp0initvals13"; + else + goto err_no_initvals; + break; + default: + goto err_no_initvals; + } + err = do_request_fw(dev, filename, &fw->initvals); + if (err) + goto err_load; + } + if (!fw->initvals_band) { + switch (dev->phy.type) { + case B43_PHYTYPE_A: + if ((rev >= 5) && (rev <= 10)) { + if (tmshigh & B43_TMSHIGH_GPHY) + filename = "a0g1bsinitvals5"; + else + filename = "a0g0bsinitvals5"; + } else if (rev >= 11) + filename = NULL; + else + goto err_no_initvals; + break; + case B43_PHYTYPE_G: + if ((rev >= 5) && (rev <= 10)) + filename = "b0g0bsinitvals5"; + else if (rev >= 11) + filename = NULL; + else + goto err_no_initvals; + break; + default: + goto err_no_initvals; + } + err = do_request_fw(dev, filename, &fw->initvals_band); + if (err) + goto err_load; + } + + return 0; + +err_load: + b43_print_fw_helptext(dev->wl); + goto error; + +err_no_ucode: + err = -ENODEV; + b43err(dev->wl, "No microcode available for core rev %u\n", rev); + goto error; + +err_no_pcm: + err = -ENODEV; + b43err(dev->wl, "No PCM available for core rev %u\n", rev); + goto error; + +err_no_initvals: + err = -ENODEV; + b43err(dev->wl, "No Initial Values firmware file for PHY %u, " + "core rev %u\n", dev->phy.type, rev); + goto error; + +error: + b43_release_firmware(dev); + return err; +} + +static int b43_upload_microcode(struct b43_wldev *dev) +{ + const size_t hdr_len = sizeof(struct b43_fw_header); + const __be32 *data; + unsigned int i, len; + u16 fwrev, fwpatch, fwdate, fwtime; + u32 tmp; + int err = 0; + + /* Upload Microcode. */ + data = (__be32 *) (dev->fw.ucode->data + hdr_len); + len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32); + b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); + for (i = 0; i < len; i++) { + b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); + udelay(10); + } + + if (dev->fw.pcm) { + /* Upload PCM data. */ + data = (__be32 *) (dev->fw.pcm->data + hdr_len); + len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32); + b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); + b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); + /* No need for autoinc bit in SHM_HW */ + b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); + for (i = 0; i < len; i++) { + b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); + udelay(10); + } + } + + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); + b43_write32(dev, B43_MMIO_MACCTL, + B43_MACCTL_PSM_RUN | + B43_MACCTL_IHR_ENABLED | B43_MACCTL_INFRA); + + /* Wait for the microcode to load and respond */ + i = 0; + while (1) { + tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); + if (tmp == B43_IRQ_MAC_SUSPENDED) + break; + i++; + if (i >= 50) { + b43err(dev->wl, "Microcode not responding\n"); + b43_print_fw_helptext(dev->wl); + err = -ENODEV; + goto out; + } + udelay(10); + } + b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ + + /* Get and check the revisions. */ + fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); + fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); + fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); + fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); + + if (fwrev <= 0x128) { + b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " + "binary drivers older than version 4.x is unsupported. " + "You must upgrade your firmware files.\n"); + b43_print_fw_helptext(dev->wl); + b43_write32(dev, B43_MMIO_MACCTL, 0); + err = -EOPNOTSUPP; + goto out; + } + b43dbg(dev->wl, "Loading firmware version %u.%u " + "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", + fwrev, fwpatch, + (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, + (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); + + dev->fw.rev = fwrev; + dev->fw.patch = fwpatch; + + out: + return err; +} + +static int b43_write_initvals(struct b43_wldev *dev, + const struct b43_iv *ivals, + size_t count, + size_t array_size) +{ + const struct b43_iv *iv; + u16 offset; + size_t i; + bool bit32; + + BUILD_BUG_ON(sizeof(struct b43_iv) != 6); + iv = ivals; + for (i = 0; i < count; i++) { + if (array_size < sizeof(iv->offset_size)) + goto err_format; + array_size -= sizeof(iv->offset_size); + offset = be16_to_cpu(iv->offset_size); + bit32 = !!(offset & B43_IV_32BIT); + offset &= B43_IV_OFFSET_MASK; + if (offset >= 0x1000) + goto err_format; + if (bit32) { + u32 value; + + if (array_size < sizeof(iv->data.d32)) + goto err_format; + array_size -= sizeof(iv->data.d32); + + value = be32_to_cpu(get_unaligned(&iv->data.d32)); + b43_write32(dev, offset, value); + + iv = (const struct b43_iv *)((const uint8_t *)iv + + sizeof(__be16) + + sizeof(__be32)); + } else { + u16 value; + + if (array_size < sizeof(iv->data.d16)) + goto err_format; + array_size -= sizeof(iv->data.d16); + + value = be16_to_cpu(iv->data.d16); + b43_write16(dev, offset, value); + + iv = (const struct b43_iv *)((const uint8_t *)iv + + sizeof(__be16) + + sizeof(__be16)); + } + } + if (array_size) + goto err_format; + + return 0; + +err_format: + b43err(dev->wl, "Initial Values Firmware file-format error.\n"); + b43_print_fw_helptext(dev->wl); + + return -EPROTO; +} + +static int b43_upload_initvals(struct b43_wldev *dev) +{ + const size_t hdr_len = sizeof(struct b43_fw_header); + const struct b43_fw_header *hdr; + struct b43_firmware *fw = &dev->fw; + const struct b43_iv *ivals; + size_t count; + int err; + + hdr = (const struct b43_fw_header *)(fw->initvals->data); + ivals = (const struct b43_iv *)(fw->initvals->data + hdr_len); + count = be32_to_cpu(hdr->size); + err = b43_write_initvals(dev, ivals, count, + fw->initvals->size - hdr_len); + if (err) + goto out; + if (fw->initvals_band) { + hdr = (const struct b43_fw_header *)(fw->initvals_band->data); + ivals = (const struct b43_iv *)(fw->initvals_band->data + hdr_len); + count = be32_to_cpu(hdr->size); + err = b43_write_initvals(dev, ivals, count, + fw->initvals_band->size - hdr_len); + if (err) + goto out; + } +out: + + return err; +} + +/* Initialize the GPIOs + * http://bcm-specs.sipsolutions.net/GPIO + */ +static int b43_gpio_init(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct ssb_device *gpiodev, *pcidev = NULL; + u32 mask, set; + + b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) + & ~B43_MACCTL_GPOUTSMSK); + + b43_leds_switch_all(dev, 0); + b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) + | 0x000F); + + mask = 0x0000001F; + set = 0x0000000F; + if (dev->dev->bus->chip_id == 0x4301) { + mask |= 0x0060; + set |= 0x0060; + } + if (0 /* FIXME: conditional unknown */ ) { + b43_write16(dev, B43_MMIO_GPIO_MASK, + b43_read16(dev, B43_MMIO_GPIO_MASK) + | 0x0100); + mask |= 0x0180; + set |= 0x0180; + } + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_PACTRL) { + b43_write16(dev, B43_MMIO_GPIO_MASK, + b43_read16(dev, B43_MMIO_GPIO_MASK) + | 0x0200); + mask |= 0x0200; + set |= 0x0200; + } + if (dev->dev->id.revision >= 2) + mask |= 0x0010; /* FIXME: This is redundant. */ + +#ifdef CONFIG_SSB_DRIVER_PCICORE + pcidev = bus->pcicore.dev; +#endif + gpiodev = bus->chipco.dev ? : pcidev; + if (!gpiodev) + return 0; + ssb_write32(gpiodev, B43_GPIO_CONTROL, + (ssb_read32(gpiodev, B43_GPIO_CONTROL) + & mask) | set); + + return 0; +} + +/* Turn off all GPIO stuff. Call this on module unload, for example. */ +static void b43_gpio_cleanup(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct ssb_device *gpiodev, *pcidev = NULL; + +#ifdef CONFIG_SSB_DRIVER_PCICORE + pcidev = bus->pcicore.dev; +#endif + gpiodev = bus->chipco.dev ? : pcidev; + if (!gpiodev) + return; + ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); +} + +/* http://bcm-specs.sipsolutions.net/EnableMac */ +void b43_mac_enable(struct b43_wldev *dev) +{ + dev->mac_suspended--; + B43_WARN_ON(dev->mac_suspended < 0); + if (dev->mac_suspended == 0) { + b43_write32(dev, B43_MMIO_MACCTL, + b43_read32(dev, B43_MMIO_MACCTL) + | B43_MACCTL_ENABLED); + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, + B43_IRQ_MAC_SUSPENDED); + /* Commit writes */ + b43_read32(dev, B43_MMIO_MACCTL); + b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); + b43_power_saving_ctl_bits(dev, 0); + } +} + +/* http://bcm-specs.sipsolutions.net/SuspendMAC */ +void b43_mac_suspend(struct b43_wldev *dev) +{ + int i; + u32 tmp; + + B43_WARN_ON(dev->mac_suspended < 0); + if (dev->mac_suspended == 0) { + b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); + b43_write32(dev, B43_MMIO_MACCTL, + b43_read32(dev, B43_MMIO_MACCTL) + & ~B43_MACCTL_ENABLED); + /* force pci to flush the write */ + b43_read32(dev, B43_MMIO_MACCTL); + for (i = 10000; i; i--) { + tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); + if (tmp & B43_IRQ_MAC_SUSPENDED) + goto out; + udelay(1); + } + b43err(dev->wl, "MAC suspend failed\n"); + } + out: + dev->mac_suspended++; +} + +static void b43_adjust_opmode(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + u32 ctl; + u16 cfp_pretbtt; + + ctl = b43_read32(dev, B43_MMIO_MACCTL); + /* Reset status to STA infrastructure mode. */ + ctl &= ~B43_MACCTL_AP; + ctl &= ~B43_MACCTL_KEEP_CTL; + ctl &= ~B43_MACCTL_KEEP_BADPLCP; + ctl &= ~B43_MACCTL_KEEP_BAD; + ctl &= ~B43_MACCTL_PROMISC; + ctl |= B43_MACCTL_INFRA; + + if (wl->operating) { + switch (wl->if_type) { + case IEEE80211_IF_TYPE_AP: + ctl |= B43_MACCTL_AP; + break; + case IEEE80211_IF_TYPE_IBSS: + ctl &= ~B43_MACCTL_INFRA; + break; + case IEEE80211_IF_TYPE_STA: + case IEEE80211_IF_TYPE_MNTR: + case IEEE80211_IF_TYPE_WDS: + break; + default: + B43_WARN_ON(1); + } + } + if (wl->monitor) { + ctl |= B43_MACCTL_KEEP_CTL; + if (modparam_mon_keep_bad) + ctl |= B43_MACCTL_KEEP_BAD; + if (modparam_mon_keep_badplcp) + ctl |= B43_MACCTL_KEEP_BADPLCP; + } + if (wl->promisc) + ctl |= B43_MACCTL_PROMISC; + /* Workaround: On old hardware the HW-MAC-address-filter + * doesn't work properly, so always run promisc in filter + * it in software. */ + if (dev->dev->id.revision <= 4) + ctl |= B43_MACCTL_PROMISC; + + b43_write32(dev, B43_MMIO_MACCTL, ctl); + + cfp_pretbtt = 2; + if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { + if (dev->dev->bus->chip_id == 0x4306 && + dev->dev->bus->chip_rev == 3) + cfp_pretbtt = 100; + else + cfp_pretbtt = 50; + } + b43_write16(dev, 0x612, cfp_pretbtt); +} + +static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) +{ + u16 offset; + + if (is_ofdm) { + offset = 0x480; + offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; + } else { + offset = 0x4C0; + offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; + } + b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, + b43_shm_read16(dev, B43_SHM_SHARED, offset)); +} + +static void b43_rate_memory_init(struct b43_wldev *dev) +{ + switch (dev->phy.type) { + case B43_PHYTYPE_A: + case B43_PHYTYPE_G: + b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); + b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); + if (dev->phy.type == B43_PHYTYPE_A) + break; + /* fallthrough */ + case B43_PHYTYPE_B: + b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); + b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); + b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); + b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); + break; + default: + B43_WARN_ON(1); + } +} + +/* Set the TX-Antenna for management frames sent by firmware. */ +static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) +{ + u16 ant = 0; + u16 tmp; + + switch (antenna) { + case B43_ANTENNA0: + ant |= B43_TX4_PHY_ANT0; + break; + case B43_ANTENNA1: + ant |= B43_TX4_PHY_ANT1; + break; + case B43_ANTENNA_AUTO: + ant |= B43_TX4_PHY_ANTLAST; + break; + default: + B43_WARN_ON(1); + } + + /* FIXME We also need to set the other flags of the PHY control field somewhere. */ + + /* For Beacons */ + tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); + tmp = (tmp & ~B43_TX4_PHY_ANT) | ant; + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, tmp); + /* For ACK/CTS */ + tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); + tmp = (tmp & ~B43_TX4_PHY_ANT) | ant; + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); + /* For Probe Resposes */ + tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); + tmp = (tmp & ~B43_TX4_PHY_ANT) | ant; + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); +} + +/* This is the opposite of b43_chip_init() */ +static void b43_chip_exit(struct b43_wldev *dev) +{ + b43_radio_turn_off(dev); + if (!modparam_noleds) + b43_leds_exit(dev); + b43_gpio_cleanup(dev); + /* firmware is released later */ +} + +/* Initialize the chip + * http://bcm-specs.sipsolutions.net/ChipInit + */ +static int b43_chip_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + int err, tmp; + u32 value32; + u16 value16; + + b43_write32(dev, B43_MMIO_MACCTL, + B43_MACCTL_PSM_JMP0 | B43_MACCTL_IHR_ENABLED); + + err = b43_request_firmware(dev); + if (err) + goto out; + err = b43_upload_microcode(dev); + if (err) + goto out; /* firmware is released later */ + + err = b43_gpio_init(dev); + if (err) + goto out; /* firmware is released later */ + err = b43_upload_initvals(dev); + if (err) + goto err_gpio_cleanup; + b43_radio_turn_on(dev); + dev->radio_hw_enable = b43_is_hw_radio_enabled(dev); + b43dbg(dev->wl, "Radio %s by hardware\n", + (dev->radio_hw_enable == 0) ? "disabled" : "enabled"); + + b43_write16(dev, 0x03E6, 0x0000); + err = b43_phy_init(dev); + if (err) + goto err_radio_off; + + /* Select initial Interference Mitigation. */ + tmp = phy->interfmode; + phy->interfmode = B43_INTERFMODE_NONE; + b43_radio_set_interference_mitigation(dev, tmp); + + b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT); + b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); + + if (phy->type == B43_PHYTYPE_B) { + value16 = b43_read16(dev, 0x005E); + value16 |= 0x0004; + b43_write16(dev, 0x005E, value16); + } + b43_write32(dev, 0x0100, 0x01000000); + if (dev->dev->id.revision < 5) + b43_write32(dev, 0x010C, 0x01000000); + + b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) + & ~B43_MACCTL_INFRA); + b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) + | B43_MACCTL_INFRA); + /* Let beacons come through */ + b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) + | B43_MACCTL_BEACPROMISC); + + if (b43_using_pio(dev)) { + b43_write32(dev, 0x0210, 0x00000100); + b43_write32(dev, 0x0230, 0x00000100); + b43_write32(dev, 0x0250, 0x00000100); + b43_write32(dev, 0x0270, 0x00000100); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0034, 0x0000); + } + + /* Probe Response Timeout value */ + /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ + b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); + + /* Initially set the wireless operation mode. */ + b43_adjust_opmode(dev); + + if (dev->dev->id.revision < 3) { + b43_write16(dev, 0x060E, 0x0000); + b43_write16(dev, 0x0610, 0x8000); + b43_write16(dev, 0x0604, 0x0000); + b43_write16(dev, 0x0606, 0x0200); + } else { + b43_write32(dev, 0x0188, 0x80000000); + b43_write32(dev, 0x018C, 0x02000000); + } + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); + b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); + b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); + b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); + b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); + b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); + b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); + + value32 = ssb_read32(dev->dev, SSB_TMSLOW); + value32 |= 0x00100000; + ssb_write32(dev->dev, SSB_TMSLOW, value32); + + b43_write16(dev, B43_MMIO_POWERUP_DELAY, + dev->dev->bus->chipco.fast_pwrup_delay); + + err = 0; + b43dbg(dev->wl, "Chip initialized\n"); + out: + return err; + + err_radio_off: + b43_radio_turn_off(dev); + err_gpio_cleanup: + b43_gpio_cleanup(dev); + goto out; +} + +static void b43_periodic_every120sec(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->type != B43_PHYTYPE_G || phy->rev < 2) + return; + + b43_mac_suspend(dev); + b43_lo_g_measure(dev); + b43_mac_enable(dev); + if (b43_has_hardware_pctl(phy)) + b43_lo_g_ctl_mark_all_unused(dev); +} + +static void b43_periodic_every60sec(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (!b43_has_hardware_pctl(phy)) + b43_lo_g_ctl_mark_all_unused(dev); + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_RSSI) { + b43_mac_suspend(dev); + b43_calc_nrssi_slope(dev); + if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) { + u8 old_chan = phy->channel; + + /* VCO Calibration */ + if (old_chan >= 8) + b43_radio_selectchannel(dev, 1, 0); + else + b43_radio_selectchannel(dev, 13, 0); + b43_radio_selectchannel(dev, old_chan, 0); + } + b43_mac_enable(dev); + } +} + +static void b43_periodic_every30sec(struct b43_wldev *dev) +{ + /* Update device statistics. */ + b43_calculate_link_quality(dev); +} + +static void b43_periodic_every15sec(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->type == B43_PHYTYPE_G) { + //TODO: update_aci_moving_average + if (phy->aci_enable && phy->aci_wlan_automatic) { + b43_mac_suspend(dev); + if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) { + if (0 /*TODO: bunch of conditions */ ) { + b43_radio_set_interference_mitigation + (dev, B43_INTERFMODE_MANUALWLAN); + } + } else if (1 /*TODO*/) { + /* + if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) { + b43_radio_set_interference_mitigation(dev, + B43_INTERFMODE_NONE); + } + */ + } + b43_mac_enable(dev); + } else if (phy->interfmode == B43_INTERFMODE_NONWLAN && + phy->rev == 1) { + //TODO: implement rev1 workaround + } + } + b43_phy_xmitpower(dev); //FIXME: unless scanning? + //TODO for APHY (temperature?) +} + +static void b43_periodic_every1sec(struct b43_wldev *dev) +{ + int radio_hw_enable; + + /* check if radio hardware enabled status changed */ + radio_hw_enable = b43_is_hw_radio_enabled(dev); + if (unlikely(dev->radio_hw_enable != radio_hw_enable)) { + dev->radio_hw_enable = radio_hw_enable; + b43dbg(dev->wl, "Radio hardware status changed to %s\n", + (radio_hw_enable == 0) ? "disabled" : "enabled"); + b43_leds_update(dev, 0); + } +} + +static void do_periodic_work(struct b43_wldev *dev) +{ + unsigned int state; + + state = dev->periodic_state; + if (state % 120 == 0) + b43_periodic_every120sec(dev); + if (state % 60 == 0) + b43_periodic_every60sec(dev); + if (state % 30 == 0) + b43_periodic_every30sec(dev); + if (state % 15 == 0) + b43_periodic_every15sec(dev); + b43_periodic_every1sec(dev); +} + +/* Estimate a "Badness" value based on the periodic work + * state-machine state. "Badness" is worse (bigger), if the + * periodic work will take longer. + */ +static int estimate_periodic_work_badness(unsigned int state) +{ + int badness = 0; + + if (state % 120 == 0) /* every 120 sec */ + badness += 10; + if (state % 60 == 0) /* every 60 sec */ + badness += 5; + if (state % 30 == 0) /* every 30 sec */ + badness += 1; + if (state % 15 == 0) /* every 15 sec */ + badness += 1; + +#define BADNESS_LIMIT 4 + return badness; +} + +static void b43_periodic_work_handler(struct work_struct *work) +{ + struct b43_wldev *dev = + container_of(work, struct b43_wldev, periodic_work.work); + unsigned long flags, delay; + u32 savedirqs = 0; + int badness; + + mutex_lock(&dev->wl->mutex); + + if (unlikely(b43_status(dev) != B43_STAT_STARTED)) + goto out; + if (b43_debug(dev, B43_DBG_PWORK_STOP)) + goto out_requeue; + + badness = estimate_periodic_work_badness(dev->periodic_state); + if (badness > BADNESS_LIMIT) { + spin_lock_irqsave(&dev->wl->irq_lock, flags); + /* Suspend TX as we don't want to transmit packets while + * we recalibrate the hardware. */ + b43_tx_suspend(dev); + savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL); + /* Periodic work will take a long time, so we want it to + * be preemtible and release the spinlock. */ + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); + b43_synchronize_irq(dev); + + do_periodic_work(dev); + + spin_lock_irqsave(&dev->wl->irq_lock, flags); + b43_interrupt_enable(dev, savedirqs); + b43_tx_resume(dev); + mmiowb(); + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); + } else { + /* Take the global driver lock. This will lock any operation. */ + spin_lock_irqsave(&dev->wl->irq_lock, flags); + + do_periodic_work(dev); + + mmiowb(); + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); + } + dev->periodic_state++; + out_requeue: + if (b43_debug(dev, B43_DBG_PWORK_FAST)) + delay = msecs_to_jiffies(50); + else + delay = round_jiffies(HZ); + queue_delayed_work(dev->wl->hw->workqueue, &dev->periodic_work, delay); + out: + mutex_unlock(&dev->wl->mutex); +} + +static void b43_periodic_tasks_setup(struct b43_wldev *dev) +{ + struct delayed_work *work = &dev->periodic_work; + + dev->periodic_state = 0; + INIT_DELAYED_WORK(work, b43_periodic_work_handler); + queue_delayed_work(dev->wl->hw->workqueue, work, 0); +} + +/* Validate access to the chip (SHM) */ +static int b43_validate_chipaccess(struct b43_wldev *dev) +{ + u32 value; + u32 shm_backup; + + shm_backup = b43_shm_read32(dev, B43_SHM_SHARED, 0); + b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); + if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) + goto error; + b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); + if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) + goto error; + b43_shm_write32(dev, B43_SHM_SHARED, 0, shm_backup); + + value = b43_read32(dev, B43_MMIO_MACCTL); + if ((value | B43_MACCTL_GMODE) != + (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) + goto error; + + value = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); + if (value) + goto error; + + return 0; + error: + b43err(dev->wl, "Failed to validate the chipaccess\n"); + return -ENODEV; +} + +static void b43_security_init(struct b43_wldev *dev) +{ + dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20; + B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key)); + dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); + /* KTP is a word address, but we address SHM bytewise. + * So multiply by two. + */ + dev->ktp *= 2; + if (dev->dev->id.revision >= 5) { + /* Number of RCMTA address slots */ + b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8); + } + b43_clear_keys(dev); +} + +static int b43_rng_read(struct hwrng *rng, u32 * data) +{ + struct b43_wl *wl = (struct b43_wl *)rng->priv; + unsigned long flags; + + /* Don't take wl->mutex here, as it could deadlock with + * hwrng internal locking. It's not needed to take + * wl->mutex here, anyway. */ + + spin_lock_irqsave(&wl->irq_lock, flags); + *data = b43_read16(wl->current_dev, B43_MMIO_RNG); + spin_unlock_irqrestore(&wl->irq_lock, flags); + + return (sizeof(u16)); +} + +static void b43_rng_exit(struct b43_wl *wl) +{ + if (wl->rng_initialized) + hwrng_unregister(&wl->rng); +} + +static int b43_rng_init(struct b43_wl *wl) +{ + int err; + + snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), + "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); + wl->rng.name = wl->rng_name; + wl->rng.data_read = b43_rng_read; + wl->rng.priv = (unsigned long)wl; + wl->rng_initialized = 1; + err = hwrng_register(&wl->rng); + if (err) { + wl->rng_initialized = 0; + b43err(wl, "Failed to register the random " + "number generator (%d)\n", err); + } + + return err; +} + +static int b43_tx(struct ieee80211_hw *hw, + struct sk_buff *skb, struct ieee80211_tx_control *ctl) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + int err = -ENODEV; + unsigned long flags; + + if (unlikely(!dev)) + goto out; + if (unlikely(b43_status(dev) < B43_STAT_STARTED)) + goto out; + /* DMA-TX is done without a global lock. */ + if (b43_using_pio(dev)) { + spin_lock_irqsave(&wl->irq_lock, flags); + err = b43_pio_tx(dev, skb, ctl); + spin_unlock_irqrestore(&wl->irq_lock, flags); + } else + err = b43_dma_tx(dev, skb, ctl); + out: + if (unlikely(err)) + return NETDEV_TX_BUSY; + return NETDEV_TX_OK; +} + +static int b43_conf_tx(struct ieee80211_hw *hw, + int queue, + const struct ieee80211_tx_queue_params *params) +{ + return 0; +} + +static int b43_get_tx_stats(struct ieee80211_hw *hw, + struct ieee80211_tx_queue_stats *stats) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + unsigned long flags; + int err = -ENODEV; + + if (!dev) + goto out; + spin_lock_irqsave(&wl->irq_lock, flags); + if (likely(b43_status(dev) >= B43_STAT_STARTED)) { + if (b43_using_pio(dev)) + b43_pio_get_tx_stats(dev, stats); + else + b43_dma_get_tx_stats(dev, stats); + err = 0; + } + spin_unlock_irqrestore(&wl->irq_lock, flags); + out: + return err; +} + +static int b43_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + unsigned long flags; + + spin_lock_irqsave(&wl->irq_lock, flags); + memcpy(stats, &wl->ieee_stats, sizeof(*stats)); + spin_unlock_irqrestore(&wl->irq_lock, flags); + + return 0; +} + +static const char *phymode_to_string(unsigned int phymode) +{ + switch (phymode) { + case B43_PHYMODE_A: + return "A"; + case B43_PHYMODE_B: + return "B"; + case B43_PHYMODE_G: + return "G"; + default: + B43_WARN_ON(1); + } + return ""; +} + +static int find_wldev_for_phymode(struct b43_wl *wl, + unsigned int phymode, + struct b43_wldev **dev, bool * gmode) +{ + struct b43_wldev *d; + + list_for_each_entry(d, &wl->devlist, list) { + if (d->phy.possible_phymodes & phymode) { + /* Ok, this device supports the PHY-mode. + * Now figure out how the gmode bit has to be + * set to support it. */ + if (phymode == B43_PHYMODE_A) + *gmode = 0; + else + *gmode = 1; + *dev = d; + + return 0; + } + } + + return -ESRCH; +} + +static void b43_put_phy_into_reset(struct b43_wldev *dev) +{ + struct ssb_device *sdev = dev->dev; + u32 tmslow; + + tmslow = ssb_read32(sdev, SSB_TMSLOW); + tmslow &= ~B43_TMSLOW_GMODE; + tmslow |= B43_TMSLOW_PHYRESET; + tmslow |= SSB_TMSLOW_FGC; + ssb_write32(sdev, SSB_TMSLOW, tmslow); + msleep(1); + + tmslow = ssb_read32(sdev, SSB_TMSLOW); + tmslow &= ~SSB_TMSLOW_FGC; + tmslow |= B43_TMSLOW_PHYRESET; + ssb_write32(sdev, SSB_TMSLOW, tmslow); + msleep(1); +} + +/* Expects wl->mutex locked */ +static int b43_switch_phymode(struct b43_wl *wl, unsigned int new_mode) +{ + struct b43_wldev *up_dev; + struct b43_wldev *down_dev; + int err; + bool gmode = 0; + int prev_status; + + err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode); + if (err) { + b43err(wl, "Could not find a device for %s-PHY mode\n", + phymode_to_string(new_mode)); + return err; + } + if ((up_dev == wl->current_dev) && + (!!wl->current_dev->phy.gmode == !!gmode)) { + /* This device is already running. */ + return 0; + } + b43dbg(wl, "Reconfiguring PHYmode to %s-PHY\n", + phymode_to_string(new_mode)); + down_dev = wl->current_dev; + + prev_status = b43_status(down_dev); + /* Shutdown the currently running core. */ + if (prev_status >= B43_STAT_STARTED) + b43_wireless_core_stop(down_dev); + if (prev_status >= B43_STAT_INITIALIZED) + b43_wireless_core_exit(down_dev); + + if (down_dev != up_dev) { + /* We switch to a different core, so we put PHY into + * RESET on the old core. */ + b43_put_phy_into_reset(down_dev); + } + + /* Now start the new core. */ + up_dev->phy.gmode = gmode; + if (prev_status >= B43_STAT_INITIALIZED) { + err = b43_wireless_core_init(up_dev); + if (err) { + b43err(wl, "Fatal: Could not initialize device for " + "newly selected %s-PHY mode\n", + phymode_to_string(new_mode)); + goto init_failure; + } + } + if (prev_status >= B43_STAT_STARTED) { + err = b43_wireless_core_start(up_dev); + if (err) { + b43err(wl, "Fatal: Coult not start device for " + "newly selected %s-PHY mode\n", + phymode_to_string(new_mode)); + b43_wireless_core_exit(up_dev); + goto init_failure; + } + } + B43_WARN_ON(b43_status(up_dev) != prev_status); + + wl->current_dev = up_dev; + + return 0; + init_failure: + /* Whoops, failed to init the new core. No core is operating now. */ + wl->current_dev = NULL; + return err; +} + +static int b43_antenna_from_ieee80211(u8 antenna) +{ + switch (antenna) { + case 0: /* default/diversity */ + return B43_ANTENNA_DEFAULT; + case 1: /* Antenna 0 */ + return B43_ANTENNA0; + case 2: /* Antenna 1 */ + return B43_ANTENNA1; + default: + return B43_ANTENNA_DEFAULT; + } +} + +static int b43_dev_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev; + struct b43_phy *phy; + unsigned long flags; + unsigned int new_phymode = 0xFFFF; + int antenna_tx; + int antenna_rx; + int err = 0; + u32 savedirqs; + + antenna_tx = b43_antenna_from_ieee80211(conf->antenna_sel_tx); + antenna_rx = b43_antenna_from_ieee80211(conf->antenna_sel_rx); + + mutex_lock(&wl->mutex); + + /* Switch the PHY mode (if necessary). */ + switch (conf->phymode) { + case MODE_IEEE80211A: + new_phymode = B43_PHYMODE_A; + break; + case MODE_IEEE80211B: + new_phymode = B43_PHYMODE_B; + break; + case MODE_IEEE80211G: + new_phymode = B43_PHYMODE_G; + break; + default: + B43_WARN_ON(1); + } + err = b43_switch_phymode(wl, new_phymode); + if (err) + goto out_unlock_mutex; + dev = wl->current_dev; + phy = &dev->phy; + + /* Disable IRQs while reconfiguring the device. + * This makes it possible to drop the spinlock throughout + * the reconfiguration process. */ + spin_lock_irqsave(&wl->irq_lock, flags); + if (b43_status(dev) < B43_STAT_STARTED) { + spin_unlock_irqrestore(&wl->irq_lock, flags); + goto out_unlock_mutex; + } + savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL); + spin_unlock_irqrestore(&wl->irq_lock, flags); + b43_synchronize_irq(dev); + + /* Switch to the requested channel. + * The firmware takes care of races with the TX handler. */ + if (conf->channel_val != phy->channel) + b43_radio_selectchannel(dev, conf->channel_val, 0); + + /* Enable/Disable ShortSlot timing. */ + if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) != + dev->short_slot) { + B43_WARN_ON(phy->type != B43_PHYTYPE_G); + if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) + b43_short_slot_timing_enable(dev); + else + b43_short_slot_timing_disable(dev); + } + + /* Adjust the desired TX power level. */ + if (conf->power_level != 0) { + if (conf->power_level != phy->power_level) { + phy->power_level = conf->power_level; + b43_phy_xmitpower(dev); + } + } + + /* Antennas for RX and management frame TX. */ + b43_mgmtframe_txantenna(dev, antenna_tx); + b43_set_rx_antenna(dev, antenna_rx); + + /* Update templates for AP mode. */ + if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) + b43_set_beacon_int(dev, conf->beacon_int); + + spin_lock_irqsave(&wl->irq_lock, flags); + b43_interrupt_enable(dev, savedirqs); + mmiowb(); + spin_unlock_irqrestore(&wl->irq_lock, flags); + out_unlock_mutex: + mutex_unlock(&wl->mutex); + + return err; +} + +static int b43_dev_set_key(struct ieee80211_hw *hw, + set_key_cmd cmd, const u8 *local_addr, + const u8 *addr, struct ieee80211_key_conf *key) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + unsigned long flags; + u8 algorithm; + u8 index; + int err = -EINVAL; + + if (modparam_nohwcrypt) + return -ENOSPC; /* User disabled HW-crypto */ + + if (!dev) + return -ENODEV; + switch (key->alg) { + case ALG_NONE: + algorithm = B43_SEC_ALGO_NONE; + break; + case ALG_WEP: + if (key->keylen == 5) + algorithm = B43_SEC_ALGO_WEP40; + else + algorithm = B43_SEC_ALGO_WEP104; + break; + case ALG_TKIP: + algorithm = B43_SEC_ALGO_TKIP; + break; + case ALG_CCMP: + algorithm = B43_SEC_ALGO_AES; + break; + default: + B43_WARN_ON(1); + goto out; + } + + index = (u8) (key->keyidx); + if (index > 3) + goto out; + + mutex_lock(&wl->mutex); + spin_lock_irqsave(&wl->irq_lock, flags); + + if (b43_status(dev) < B43_STAT_INITIALIZED) { + err = -ENODEV; + goto out_unlock; + } + + switch (cmd) { + case SET_KEY: + if (algorithm == B43_SEC_ALGO_TKIP) { + /* FIXME: No TKIP hardware encryption for now. */ + err = -EOPNOTSUPP; + goto out_unlock; + } + + if (is_broadcast_ether_addr(addr)) { + /* addr is FF:FF:FF:FF:FF:FF for default keys */ + err = b43_key_write(dev, index, algorithm, + key->key, key->keylen, NULL, key); + } else { + /* + * either pairwise key or address is 00:00:00:00:00:00 + * for transmit-only keys + */ + err = b43_key_write(dev, -1, algorithm, + key->key, key->keylen, addr, key); + } + if (err) + goto out_unlock; + + if (algorithm == B43_SEC_ALGO_WEP40 || + algorithm == B43_SEC_ALGO_WEP104) { + b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); + } else { + b43_hf_write(dev, + b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); + } + key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + break; + case DISABLE_KEY: { + err = b43_key_clear(dev, key->hw_key_idx); + if (err) + goto out_unlock; + break; + } + default: + B43_WARN_ON(1); + } +out_unlock: + spin_unlock_irqrestore(&wl->irq_lock, flags); + mutex_unlock(&wl->mutex); +out: + if (!err) { + b43dbg(wl, "%s hardware based encryption for keyidx: %d, " + "mac: " MAC_FMT "\n", + cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, + MAC_ARG(addr)); + } + return err; +} + +static void b43_set_multicast_list(struct ieee80211_hw *hw, + unsigned short netflags, int mc_count) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + unsigned long flags; + + if (!dev) + return; + spin_lock_irqsave(&wl->irq_lock, flags); + if (wl->promisc != !!(netflags & IFF_PROMISC)) { + wl->promisc = !!(netflags & IFF_PROMISC); + if (b43_status(dev) >= B43_STAT_INITIALIZED) + b43_adjust_opmode(dev); + } + spin_unlock_irqrestore(&wl->irq_lock, flags); +} + +static int b43_config_interface(struct ieee80211_hw *hw, + int if_id, struct ieee80211_if_conf *conf) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev = wl->current_dev; + unsigned long flags; + + if (!dev) + return -ENODEV; + mutex_lock(&wl->mutex); + spin_lock_irqsave(&wl->irq_lock, flags); + if (conf->type != IEEE80211_IF_TYPE_MNTR) { + B43_WARN_ON(wl->if_id != if_id); + if (conf->bssid) + memcpy(wl->bssid, conf->bssid, ETH_ALEN); + else + memset(wl->bssid, 0, ETH_ALEN); + if (b43_status(dev) >= B43_STAT_INITIALIZED) { + if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) { + B43_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP); + b43_set_ssid(dev, conf->ssid, conf->ssid_len); + if (conf->beacon) + b43_refresh_templates(dev, conf->beacon); + } + b43_write_mac_bssid_templates(dev); + } + } + spin_unlock_irqrestore(&wl->irq_lock, flags); + mutex_unlock(&wl->mutex); + + return 0; +} + +/* Locking: wl->mutex */ +static void b43_wireless_core_stop(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + unsigned long flags; + + if (b43_status(dev) < B43_STAT_STARTED) + return; + b43_set_status(dev, B43_STAT_INITIALIZED); + + mutex_unlock(&wl->mutex); + /* Must unlock as it would otherwise deadlock. No races here. + * Cancel the possibly running self-rearming periodic work. */ + cancel_delayed_work_sync(&dev->periodic_work); + mutex_lock(&wl->mutex); + + ieee80211_stop_queues(wl->hw); //FIXME this could cause a deadlock, as mac80211 seems buggy. + + /* Disable and sync interrupts. */ + spin_lock_irqsave(&wl->irq_lock, flags); + dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); + b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */ + spin_unlock_irqrestore(&wl->irq_lock, flags); + b43_synchronize_irq(dev); + + b43_mac_suspend(dev); + free_irq(dev->dev->irq, dev); + b43dbg(wl, "Wireless interface stopped\n"); +} + +/* Locking: wl->mutex */ +static int b43_wireless_core_start(struct b43_wldev *dev) +{ + int err; + + B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); + + drain_txstatus_queue(dev); + err = request_irq(dev->dev->irq, b43_interrupt_handler, + IRQF_SHARED, KBUILD_MODNAME, dev); + if (err) { + b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); + goto out; + } + + /* We are ready to run. */ + b43_set_status(dev, B43_STAT_STARTED); + + /* Start data flow (TX/RX). */ + b43_mac_enable(dev); + b43_interrupt_enable(dev, dev->irq_savedstate); + ieee80211_start_queues(dev->wl->hw); + + /* Start maintainance work */ + b43_periodic_tasks_setup(dev); + + b43dbg(dev->wl, "Wireless interface started\n"); + out: + return err; +} + +/* Get PHY and RADIO versioning numbers */ +static int b43_phy_versioning(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u32 tmp; + u8 analog_type; + u8 phy_type; + u8 phy_rev; + u16 radio_manuf; + u16 radio_ver; + u16 radio_rev; + int unsupported = 0; + + /* Get PHY versioning */ + tmp = b43_read16(dev, B43_MMIO_PHY_VER); + analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; + phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; + phy_rev = (tmp & B43_PHYVER_VERSION); + switch (phy_type) { + case B43_PHYTYPE_A: + if (phy_rev >= 4) + unsupported = 1; + break; + case B43_PHYTYPE_B: + if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 + && phy_rev != 7) + unsupported = 1; + break; + case B43_PHYTYPE_G: + if (phy_rev > 8) + unsupported = 1; + break; + default: + unsupported = 1; + }; + if (unsupported) { + b43err(dev->wl, "FOUND UNSUPPORTED PHY " + "(Analog %u, Type %u, Revision %u)\n", + analog_type, phy_type, phy_rev); + return -EOPNOTSUPP; + } + b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", + analog_type, phy_type, phy_rev); + + /* Get RADIO versioning */ + if (dev->dev->bus->chip_id == 0x4317) { + if (dev->dev->bus->chip_rev == 0) + tmp = 0x3205017F; + else if (dev->dev->bus->chip_rev == 1) + tmp = 0x4205017F; + else + tmp = 0x5205017F; + } else { + b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); + tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH); + tmp <<= 16; + b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); + tmp |= b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); + } + radio_manuf = (tmp & 0x00000FFF); + radio_ver = (tmp & 0x0FFFF000) >> 12; + radio_rev = (tmp & 0xF0000000) >> 28; + switch (phy_type) { + case B43_PHYTYPE_A: + if (radio_ver != 0x2060) + unsupported = 1; + if (radio_rev != 1) + unsupported = 1; + if (radio_manuf != 0x17F) + unsupported = 1; + break; + case B43_PHYTYPE_B: + if ((radio_ver & 0xFFF0) != 0x2050) + unsupported = 1; + break; + case B43_PHYTYPE_G: + if (radio_ver != 0x2050) + unsupported = 1; + break; + default: + B43_WARN_ON(1); + } + if (unsupported) { + b43err(dev->wl, "FOUND UNSUPPORTED RADIO " + "(Manuf 0x%X, Version 0x%X, Revision %u)\n", + radio_manuf, radio_ver, radio_rev); + return -EOPNOTSUPP; + } + b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", + radio_manuf, radio_ver, radio_rev); + + phy->radio_manuf = radio_manuf; + phy->radio_ver = radio_ver; + phy->radio_rev = radio_rev; + + phy->analog = analog_type; + phy->type = phy_type; + phy->rev = phy_rev; + + return 0; +} + +static void setup_struct_phy_for_init(struct b43_wldev *dev, + struct b43_phy *phy) +{ + struct b43_txpower_lo_control *lo; + int i; + + memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig)); + memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos)); + + /* Flags */ + phy->locked = 0; + + phy->aci_enable = 0; + phy->aci_wlan_automatic = 0; + phy->aci_hw_rssi = 0; + + lo = phy->lo_control; + if (lo) { + memset(lo, 0, sizeof(*(phy->lo_control))); + lo->rebuild = 1; + lo->tx_bias = 0xFF; + } + phy->max_lb_gain = 0; + phy->trsw_rx_gain = 0; + phy->txpwr_offset = 0; + + /* NRSSI */ + phy->nrssislope = 0; + for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++) + phy->nrssi[i] = -1000; + for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++) + phy->nrssi_lt[i] = i; + + phy->lofcal = 0xFFFF; + phy->initval = 0xFFFF; + + spin_lock_init(&phy->lock); + phy->interfmode = B43_INTERFMODE_NONE; + phy->channel = 0xFF; + + phy->hardware_power_control = !!modparam_hwpctl; +} + +static void setup_struct_wldev_for_init(struct b43_wldev *dev) +{ + /* Flags */ + dev->reg124_set_0x4 = 0; + + /* Stats */ + memset(&dev->stats, 0, sizeof(dev->stats)); + + setup_struct_phy_for_init(dev, &dev->phy); + + /* IRQ related flags */ + dev->irq_reason = 0; + memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); + dev->irq_savedstate = B43_IRQ_MASKTEMPLATE; + + dev->mac_suspended = 1; + + /* Noise calculation context */ + memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); +} + +static void b43_bluetooth_coext_enable(struct b43_wldev *dev) +{ + struct ssb_sprom *sprom = &dev->dev->bus->sprom; + u32 hf; + + if (!(sprom->r1.boardflags_lo & B43_BFL_BTCOEXIST)) + return; + if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) + return; + + hf = b43_hf_read(dev); + if (sprom->r1.boardflags_lo & B43_BFL_BTCMOD) + hf |= B43_HF_BTCOEXALT; + else + hf |= B43_HF_BTCOEX; + b43_hf_write(dev, hf); + //TODO +} + +static void b43_bluetooth_coext_disable(struct b43_wldev *dev) +{ //TODO +} + +static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) +{ +#ifdef CONFIG_SSB_DRIVER_PCICORE + struct ssb_bus *bus = dev->dev->bus; + u32 tmp; + + if (bus->pcicore.dev && + bus->pcicore.dev->id.coreid == SSB_DEV_PCI && + bus->pcicore.dev->id.revision <= 5) { + /* IMCFGLO timeouts workaround. */ + tmp = ssb_read32(dev->dev, SSB_IMCFGLO); + tmp &= ~SSB_IMCFGLO_REQTO; + tmp &= ~SSB_IMCFGLO_SERTO; + switch (bus->bustype) { + case SSB_BUSTYPE_PCI: + case SSB_BUSTYPE_PCMCIA: + tmp |= 0x32; + break; + case SSB_BUSTYPE_SSB: + tmp |= 0x53; + break; + } + ssb_write32(dev->dev, SSB_IMCFGLO, tmp); + } +#endif /* CONFIG_SSB_DRIVER_PCICORE */ +} + +/* Shutdown a wireless core */ +/* Locking: wl->mutex */ +static void b43_wireless_core_exit(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED); + if (b43_status(dev) != B43_STAT_INITIALIZED) + return; + b43_set_status(dev, B43_STAT_UNINIT); + + b43_rng_exit(dev->wl); + b43_pio_free(dev); + b43_dma_free(dev); + b43_chip_exit(dev); + b43_radio_turn_off(dev); + b43_switch_analog(dev, 0); + if (phy->dyn_tssi_tbl) + kfree(phy->tssi2dbm); + kfree(phy->lo_control); + phy->lo_control = NULL; + ssb_device_disable(dev->dev, 0); + ssb_bus_may_powerdown(dev->dev->bus); +} + +/* Initialize a wireless core */ +static int b43_wireless_core_init(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + struct ssb_bus *bus = dev->dev->bus; + struct ssb_sprom *sprom = &bus->sprom; + struct b43_phy *phy = &dev->phy; + int err; + u32 hf, tmp; + + B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); + + err = ssb_bus_powerup(bus, 0); + if (err) + goto out; + if (!ssb_device_is_enabled(dev->dev)) { + tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; + b43_wireless_core_reset(dev, tmp); + } + + if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) { + phy->lo_control = + kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL); + if (!phy->lo_control) { + err = -ENOMEM; + goto err_busdown; + } + } + setup_struct_wldev_for_init(dev); + + err = b43_phy_init_tssi2dbm_table(dev); + if (err) + goto err_kfree_lo_control; + + /* Enable IRQ routing to this device. */ + ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); + + b43_imcfglo_timeouts_workaround(dev); + b43_bluetooth_coext_disable(dev); + b43_phy_early_init(dev); + err = b43_chip_init(dev); + if (err) + goto err_kfree_tssitbl; + b43_shm_write16(dev, B43_SHM_SHARED, + B43_SHM_SH_WLCOREREV, dev->dev->id.revision); + hf = b43_hf_read(dev); + if (phy->type == B43_PHYTYPE_G) { + hf |= B43_HF_SYMW; + if (phy->rev == 1) + hf |= B43_HF_GDCW; + if (sprom->r1.boardflags_lo & B43_BFL_PACTRL) + hf |= B43_HF_OFDMPABOOST; + } else if (phy->type == B43_PHYTYPE_B) { + hf |= B43_HF_SYMW; + if (phy->rev >= 2 && phy->radio_ver == 0x2050) + hf &= ~B43_HF_GDCW; + } + b43_hf_write(dev, hf); + + /* Short/Long Retry Limit. + * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing + * the chip-internal counter. + */ + tmp = limit_value(modparam_short_retry, 0, 0xF); + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, tmp); + tmp = limit_value(modparam_long_retry, 0, 0xF); + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, tmp); + + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); + + /* Disable sending probe responses from firmware. + * Setting the MaxTime to one usec will always trigger + * a timeout, so we never send any probe resp. + * A timeout of zero is infinite. */ + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); + + b43_rate_memory_init(dev); + + /* Minimum Contention Window */ + if (phy->type == B43_PHYTYPE_B) { + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); + } else { + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); + } + /* Maximum Contention Window */ + b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); + + do { + if (b43_using_pio(dev)) { + err = b43_pio_init(dev); + } else { + err = b43_dma_init(dev); + if (!err) + b43_qos_init(dev); + } + } while (err == -EAGAIN); + if (err) + goto err_chip_exit; + +//FIXME +#if 1 + b43_write16(dev, 0x0612, 0x0050); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0416, 0x0050); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0414, 0x01F4); +#endif + + b43_bluetooth_coext_enable(dev); + + ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */ + memset(wl->bssid, 0, ETH_ALEN); + b43_upload_card_macaddress(dev, NULL); + b43_security_init(dev); + b43_rng_init(wl); + + b43_set_status(dev, B43_STAT_INITIALIZED); + + out: + return err; + + err_chip_exit: + b43_chip_exit(dev); + err_kfree_tssitbl: + if (phy->dyn_tssi_tbl) + kfree(phy->tssi2dbm); + err_kfree_lo_control: + kfree(phy->lo_control); + phy->lo_control = NULL; + err_busdown: + ssb_bus_may_powerdown(bus); + B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); + return err; +} + +static int b43_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev; + unsigned long flags; + int err = -EOPNOTSUPP; + int did_init = 0; + + mutex_lock(&wl->mutex); + if ((conf->type != IEEE80211_IF_TYPE_MNTR) && wl->operating) + goto out_mutex_unlock; + + b43dbg(wl, "Adding Interface type %d\n", conf->type); + + dev = wl->current_dev; + if (b43_status(dev) < B43_STAT_INITIALIZED) { + err = b43_wireless_core_init(dev); + if (err) + goto out_mutex_unlock; + did_init = 1; + } + if (b43_status(dev) < B43_STAT_STARTED) { + err = b43_wireless_core_start(dev); + if (err) { + if (did_init) + b43_wireless_core_exit(dev); + goto out_mutex_unlock; + } + } + + spin_lock_irqsave(&wl->irq_lock, flags); + switch (conf->type) { + case IEEE80211_IF_TYPE_MNTR: + wl->monitor++; + break; + default: + wl->operating = 1; + wl->if_id = conf->if_id; + wl->if_type = conf->type; + b43_upload_card_macaddress(dev, conf->mac_addr); + } + b43_adjust_opmode(dev); + spin_unlock_irqrestore(&wl->irq_lock, flags); + + err = 0; + out_mutex_unlock: + mutex_unlock(&wl->mutex); + + return err; +} + +static void b43_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct b43_wl *wl = hw_to_b43_wl(hw); + struct b43_wldev *dev; + unsigned long flags; + + b43dbg(wl, "Removing Interface type %d\n", conf->type); + + mutex_lock(&wl->mutex); + if (conf->type == IEEE80211_IF_TYPE_MNTR) { + wl->monitor--; + B43_WARN_ON(wl->monitor < 0); + } else { + B43_WARN_ON(!wl->operating); + wl->operating = 0; + } + + dev = wl->current_dev; + if (!wl->operating && wl->monitor == 0) { + /* No interface left. */ + if (b43_status(dev) >= B43_STAT_STARTED) + b43_wireless_core_stop(dev); + b43_wireless_core_exit(dev); + } else { + /* Just monitor interfaces left. */ + spin_lock_irqsave(&wl->irq_lock, flags); + b43_adjust_opmode(dev); + if (!wl->operating) + b43_upload_card_macaddress(dev, NULL); + spin_unlock_irqrestore(&wl->irq_lock, flags); + } + mutex_unlock(&wl->mutex); +} + +static const struct ieee80211_ops b43_hw_ops = { + .tx = b43_tx, + .conf_tx = b43_conf_tx, + .add_interface = b43_add_interface, + .remove_interface = b43_remove_interface, + .config = b43_dev_config, + .config_interface = b43_config_interface, + .set_multicast_list = b43_set_multicast_list, + .set_key = b43_dev_set_key, + .get_stats = b43_get_stats, + .get_tx_stats = b43_get_tx_stats, +}; + +/* Hard-reset the chip. Do not call this directly. + * Use b43_controller_restart() + */ +static void b43_chip_reset(struct work_struct *work) +{ + struct b43_wldev *dev = + container_of(work, struct b43_wldev, restart_work); + struct b43_wl *wl = dev->wl; + int err = 0; + int prev_status; + + mutex_lock(&wl->mutex); + + prev_status = b43_status(dev); + /* Bring the device down... */ + if (prev_status >= B43_STAT_STARTED) + b43_wireless_core_stop(dev); + if (prev_status >= B43_STAT_INITIALIZED) + b43_wireless_core_exit(dev); + + /* ...and up again. */ + if (prev_status >= B43_STAT_INITIALIZED) { + err = b43_wireless_core_init(dev); + if (err) + goto out; + } + if (prev_status >= B43_STAT_STARTED) { + err = b43_wireless_core_start(dev); + if (err) { + b43_wireless_core_exit(dev); + goto out; + } + } + out: + mutex_unlock(&wl->mutex); + if (err) + b43err(wl, "Controller restart FAILED\n"); + else + b43info(wl, "Controller restarted\n"); +} + +static int b43_setup_modes(struct b43_wldev *dev, + int have_aphy, int have_bphy, int have_gphy) +{ + struct ieee80211_hw *hw = dev->wl->hw; + struct ieee80211_hw_mode *mode; + struct b43_phy *phy = &dev->phy; + int cnt = 0; + int err; + +/*FIXME: Don't tell ieee80211 about an A-PHY, because we currently don't support A-PHY. */ + have_aphy = 0; + + phy->possible_phymodes = 0; + for (; 1; cnt++) { + if (have_aphy) { + B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES); + mode = &phy->hwmodes[cnt]; + + mode->mode = MODE_IEEE80211A; + mode->num_channels = b43_a_chantable_size; + mode->channels = b43_a_chantable; + mode->num_rates = b43_a_ratetable_size; + mode->rates = b43_a_ratetable; + err = ieee80211_register_hwmode(hw, mode); + if (err) + return err; + + phy->possible_phymodes |= B43_PHYMODE_A; + have_aphy = 0; + continue; + } + if (have_bphy) { + B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES); + mode = &phy->hwmodes[cnt]; + + mode->mode = MODE_IEEE80211B; + mode->num_channels = b43_bg_chantable_size; + mode->channels = b43_bg_chantable; + mode->num_rates = b43_b_ratetable_size; + mode->rates = b43_b_ratetable; + err = ieee80211_register_hwmode(hw, mode); + if (err) + return err; + + phy->possible_phymodes |= B43_PHYMODE_B; + have_bphy = 0; + continue; + } + if (have_gphy) { + B43_WARN_ON(cnt >= B43_MAX_PHYHWMODES); + mode = &phy->hwmodes[cnt]; + + mode->mode = MODE_IEEE80211G; + mode->num_channels = b43_bg_chantable_size; + mode->channels = b43_bg_chantable; + mode->num_rates = b43_g_ratetable_size; + mode->rates = b43_g_ratetable; + err = ieee80211_register_hwmode(hw, mode); + if (err) + return err; + + phy->possible_phymodes |= B43_PHYMODE_G; + have_gphy = 0; + continue; + } + break; + } + + return 0; +} + +static void b43_wireless_core_detach(struct b43_wldev *dev) +{ + /* We release firmware that late to not be required to re-request + * is all the time when we reinit the core. */ + b43_release_firmware(dev); +} + +static int b43_wireless_core_attach(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + struct ssb_bus *bus = dev->dev->bus; + struct pci_dev *pdev = bus->host_pci; + int err; + int have_aphy = 0, have_bphy = 0, have_gphy = 0; + u32 tmp; + + /* Do NOT do any device initialization here. + * Do it in wireless_core_init() instead. + * This function is for gathering basic information about the HW, only. + * Also some structs may be set up here. But most likely you want to have + * that in core_init(), too. + */ + + err = ssb_bus_powerup(bus, 0); + if (err) { + b43err(wl, "Bus powerup failed\n"); + goto out; + } + /* Get the PHY type. */ + if (dev->dev->id.revision >= 5) { + u32 tmshigh; + + tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); + have_aphy = !!(tmshigh & B43_TMSHIGH_APHY); + have_gphy = !!(tmshigh & B43_TMSHIGH_GPHY); + if (!have_aphy && !have_gphy) + have_bphy = 1; + } else if (dev->dev->id.revision == 4) { + have_gphy = 1; + have_aphy = 1; + } else + have_bphy = 1; + + /* Initialize LEDs structs. */ + err = b43_leds_init(dev); + if (err) + goto err_powerdown; + + dev->phy.gmode = (have_gphy || have_bphy); + tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; + b43_wireless_core_reset(dev, tmp); + + err = b43_phy_versioning(dev); + if (err) + goto err_leds_exit; + /* Check if this device supports multiband. */ + if (!pdev || + (pdev->device != 0x4312 && + pdev->device != 0x4319 && pdev->device != 0x4324)) { + /* No multiband support. */ + have_aphy = 0; + have_bphy = 0; + have_gphy = 0; + switch (dev->phy.type) { + case B43_PHYTYPE_A: + have_aphy = 1; + break; + case B43_PHYTYPE_B: + have_bphy = 1; + break; + case B43_PHYTYPE_G: + have_gphy = 1; + break; + default: + B43_WARN_ON(1); + } + } + dev->phy.gmode = (have_gphy || have_bphy); + tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; + b43_wireless_core_reset(dev, tmp); + + err = b43_validate_chipaccess(dev); + if (err) + goto err_leds_exit; + err = b43_setup_modes(dev, have_aphy, have_bphy, have_gphy); + if (err) + goto err_leds_exit; + + /* Now set some default "current_dev" */ + if (!wl->current_dev) + wl->current_dev = dev; + INIT_WORK(&dev->restart_work, b43_chip_reset); + + b43_radio_turn_off(dev); + b43_switch_analog(dev, 0); + ssb_device_disable(dev->dev, 0); + ssb_bus_may_powerdown(bus); + +out: + return err; + +err_leds_exit: + b43_leds_exit(dev); +err_powerdown: + ssb_bus_may_powerdown(bus); + return err; +} + +static void b43_one_core_detach(struct ssb_device *dev) +{ + struct b43_wldev *wldev; + struct b43_wl *wl; + + wldev = ssb_get_drvdata(dev); + wl = wldev->wl; + cancel_work_sync(&wldev->restart_work); + b43_debugfs_remove_device(wldev); + b43_wireless_core_detach(wldev); + list_del(&wldev->list); + wl->nr_devs--; + ssb_set_drvdata(dev, NULL); + kfree(wldev); +} + +static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) +{ + struct b43_wldev *wldev; + struct pci_dev *pdev; + int err = -ENOMEM; + + if (!list_empty(&wl->devlist)) { + /* We are not the first core on this chip. */ + pdev = dev->bus->host_pci; + /* Only special chips support more than one wireless + * core, although some of the other chips have more than + * one wireless core as well. Check for this and + * bail out early. + */ + if (!pdev || + ((pdev->device != 0x4321) && + (pdev->device != 0x4313) && (pdev->device != 0x431A))) { + b43dbg(wl, "Ignoring unconnected 802.11 core\n"); + return -ENODEV; + } + } + + wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); + if (!wldev) + goto out; + + wldev->dev = dev; + wldev->wl = wl; + b43_set_status(wldev, B43_STAT_UNINIT); + wldev->bad_frames_preempt = modparam_bad_frames_preempt; + tasklet_init(&wldev->isr_tasklet, + (void (*)(unsigned long))b43_interrupt_tasklet, + (unsigned long)wldev); + if (modparam_pio) + wldev->__using_pio = 1; + INIT_LIST_HEAD(&wldev->list); + + err = b43_wireless_core_attach(wldev); + if (err) + goto err_kfree_wldev; + + list_add(&wldev->list, &wl->devlist); + wl->nr_devs++; + ssb_set_drvdata(dev, wldev); + b43_debugfs_add_device(wldev); + + out: + return err; + + err_kfree_wldev: + kfree(wldev); + return err; +} + +static void b43_sprom_fixup(struct ssb_bus *bus) +{ + /* boardflags workarounds */ + if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && + bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) + bus->sprom.r1.boardflags_lo |= B43_BFL_BTCOEXIST; + if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && + bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) + bus->sprom.r1.boardflags_lo |= B43_BFL_PACTRL; + + /* Handle case when gain is not set in sprom */ + if (bus->sprom.r1.antenna_gain_a == 0xFF) + bus->sprom.r1.antenna_gain_a = 2; + if (bus->sprom.r1.antenna_gain_bg == 0xFF) + bus->sprom.r1.antenna_gain_bg = 2; + + /* Convert Antennagain values to Q5.2 */ + bus->sprom.r1.antenna_gain_a <<= 2; + bus->sprom.r1.antenna_gain_bg <<= 2; +} + +static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) +{ + struct ieee80211_hw *hw = wl->hw; + + ssb_set_devtypedata(dev, NULL); + ieee80211_free_hw(hw); +} + +static int b43_wireless_init(struct ssb_device *dev) +{ + struct ssb_sprom *sprom = &dev->bus->sprom; + struct ieee80211_hw *hw; + struct b43_wl *wl; + int err = -ENOMEM; + + b43_sprom_fixup(dev->bus); + + hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); + if (!hw) { + b43err(NULL, "Could not allocate ieee80211 device\n"); + goto out; + } + + /* fill hw info */ + hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE | + IEEE80211_HW_MONITOR_DURING_OPER; + hw->max_signal = 100; + hw->max_rssi = -110; + hw->max_noise = -110; + hw->queues = 1; /* FIXME: hardware has more queues */ + SET_IEEE80211_DEV(hw, dev->dev); + if (is_valid_ether_addr(sprom->r1.et1mac)) + SET_IEEE80211_PERM_ADDR(hw, sprom->r1.et1mac); + else + SET_IEEE80211_PERM_ADDR(hw, sprom->r1.il0mac); + + /* Get and initialize struct b43_wl */ + wl = hw_to_b43_wl(hw); + memset(wl, 0, sizeof(*wl)); + wl->hw = hw; + spin_lock_init(&wl->irq_lock); + spin_lock_init(&wl->leds_lock); + mutex_init(&wl->mutex); + INIT_LIST_HEAD(&wl->devlist); + + ssb_set_devtypedata(dev, wl); + b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id); + err = 0; + out: + return err; +} + +static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) +{ + struct b43_wl *wl; + int err; + int first = 0; + + wl = ssb_get_devtypedata(dev); + if (!wl) { + /* Probing the first core. Must setup common struct b43_wl */ + first = 1; + err = b43_wireless_init(dev); + if (err) + goto out; + wl = ssb_get_devtypedata(dev); + B43_WARN_ON(!wl); + } + err = b43_one_core_attach(dev, wl); + if (err) + goto err_wireless_exit; + + if (first) { + err = ieee80211_register_hw(wl->hw); + if (err) + goto err_one_core_detach; + } + + out: + return err; + + err_one_core_detach: + b43_one_core_detach(dev); + err_wireless_exit: + if (first) + b43_wireless_exit(dev, wl); + return err; +} + +static void b43_remove(struct ssb_device *dev) +{ + struct b43_wl *wl = ssb_get_devtypedata(dev); + struct b43_wldev *wldev = ssb_get_drvdata(dev); + + B43_WARN_ON(!wl); + if (wl->current_dev == wldev) + ieee80211_unregister_hw(wl->hw); + + b43_one_core_detach(dev); + + if (list_empty(&wl->devlist)) { + /* Last core on the chip unregistered. + * We can destroy common struct b43_wl. + */ + b43_wireless_exit(dev, wl); + } +} + +/* Perform a hardware reset. This can be called from any context. */ +void b43_controller_restart(struct b43_wldev *dev, const char *reason) +{ + /* Must avoid requeueing, if we are in shutdown. */ + if (b43_status(dev) < B43_STAT_INITIALIZED) + return; + b43info(dev->wl, "Controller RESET (%s) ...\n", reason); + queue_work(dev->wl->hw->workqueue, &dev->restart_work); +} + +#ifdef CONFIG_PM + +static int b43_suspend(struct ssb_device *dev, pm_message_t state) +{ + struct b43_wldev *wldev = ssb_get_drvdata(dev); + struct b43_wl *wl = wldev->wl; + + b43dbg(wl, "Suspending...\n"); + + mutex_lock(&wl->mutex); + wldev->suspend_init_status = b43_status(wldev); + if (wldev->suspend_init_status >= B43_STAT_STARTED) + b43_wireless_core_stop(wldev); + if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) + b43_wireless_core_exit(wldev); + mutex_unlock(&wl->mutex); + + b43dbg(wl, "Device suspended.\n"); + + return 0; +} + +static int b43_resume(struct ssb_device *dev) +{ + struct b43_wldev *wldev = ssb_get_drvdata(dev); + struct b43_wl *wl = wldev->wl; + int err = 0; + + b43dbg(wl, "Resuming...\n"); + + mutex_lock(&wl->mutex); + if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) { + err = b43_wireless_core_init(wldev); + if (err) { + b43err(wl, "Resume failed at core init\n"); + goto out; + } + } + if (wldev->suspend_init_status >= B43_STAT_STARTED) { + err = b43_wireless_core_start(wldev); + if (err) { + b43_wireless_core_exit(wldev); + b43err(wl, "Resume failed at core start\n"); + goto out; + } + } + mutex_unlock(&wl->mutex); + + b43dbg(wl, "Device resumed.\n"); + out: + return err; +} + +#else /* CONFIG_PM */ +# define b43_suspend NULL +# define b43_resume NULL +#endif /* CONFIG_PM */ + +static struct ssb_driver b43_ssb_driver = { + .name = KBUILD_MODNAME, + .id_table = b43_ssb_tbl, + .probe = b43_probe, + .remove = b43_remove, + .suspend = b43_suspend, + .resume = b43_resume, +}; + +static int __init b43_init(void) +{ + int err; + + b43_debugfs_init(); + err = b43_pcmcia_init(); + if (err) + goto err_dfs_exit; + err = ssb_driver_register(&b43_ssb_driver); + if (err) + goto err_pcmcia_exit; + + return err; + +err_pcmcia_exit: + b43_pcmcia_exit(); +err_dfs_exit: + b43_debugfs_exit(); + return err; +} + +static void __exit b43_exit(void) +{ + ssb_driver_unregister(&b43_ssb_driver); + b43_pcmcia_exit(); + b43_debugfs_exit(); +} + +module_init(b43_init) +module_exit(b43_exit) diff --git a/drivers/net/wireless/b43/main.h b/drivers/net/wireless/b43/main.h new file mode 100644 index 000000000000..bd8fcf72dc5d --- /dev/null +++ b/drivers/net/wireless/b43/main.h @@ -0,0 +1,142 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Stefano Brivio <st3@riseup.net> + Michael Buesch <mb@bu3sch.de> + Danny van Dyk <kugelfang@gentoo.org> + Andreas Jaggi <andreas.jaggi@waterwave.ch> + + Some parts of the code in this file are derived from the ipw2200 + driver Copyright(c) 2003 - 2004 Intel Corporation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#ifndef B43_MAIN_H_ +#define B43_MAIN_H_ + +#include "b43.h" + +#define P4D_BYT3S(magic, nr_bytes) u8 __p4dding##magic[nr_bytes] +#define P4D_BYTES(line, nr_bytes) P4D_BYT3S(line, nr_bytes) +/* Magic helper macro to pad structures. Ignore those above. It's magic. */ +#define PAD_BYTES(nr_bytes) P4D_BYTES( __LINE__ , (nr_bytes)) + +/* Lightweight function to convert a frequency (in Mhz) to a channel number. */ +static inline u8 b43_freq_to_channel_a(int freq) +{ + return ((freq - 5000) / 5); +} +static inline u8 b43_freq_to_channel_bg(int freq) +{ + u8 channel; + + if (freq == 2484) + channel = 14; + else + channel = (freq - 2407) / 5; + + return channel; +} +static inline u8 b43_freq_to_channel(struct b43_wldev *dev, int freq) +{ + if (dev->phy.type == B43_PHYTYPE_A) + return b43_freq_to_channel_a(freq); + return b43_freq_to_channel_bg(freq); +} + +/* Lightweight function to convert a channel number to a frequency (in Mhz). */ +static inline int b43_channel_to_freq_a(u8 channel) +{ + return (5000 + (5 * channel)); +} +static inline int b43_channel_to_freq_bg(u8 channel) +{ + int freq; + + if (channel == 14) + freq = 2484; + else + freq = 2407 + (5 * channel); + + return freq; +} +static inline int b43_channel_to_freq(struct b43_wldev *dev, u8 channel) +{ + if (dev->phy.type == B43_PHYTYPE_A) + return b43_channel_to_freq_a(channel); + return b43_channel_to_freq_bg(channel); +} + +static inline int b43_is_cck_rate(int rate) +{ + return (rate == B43_CCK_RATE_1MB || + rate == B43_CCK_RATE_2MB || + rate == B43_CCK_RATE_5MB || rate == B43_CCK_RATE_11MB); +} + +static inline int b43_is_ofdm_rate(int rate) +{ + return !b43_is_cck_rate(rate); +} + +static inline int b43_is_hw_radio_enabled(struct b43_wldev *dev) +{ + /* function to return state of hardware enable of radio + * returns 0 if radio disabled, 1 if radio enabled + */ + struct b43_phy *phy = &dev->phy; + + if (phy->rev >= 3) + return ((b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI) + & B43_MMIO_RADIO_HWENABLED_HI_MASK) + == 0) ? 1 : 0; + else + return ((b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO) + & B43_MMIO_RADIO_HWENABLED_LO_MASK) + == 0) ? 0 : 1; +} + +void b43_tsf_read(struct b43_wldev *dev, u64 * tsf); +void b43_tsf_write(struct b43_wldev *dev, u64 tsf); + +u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset); +u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset); +void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value); +void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value); + +u32 b43_hf_read(struct b43_wldev *dev); +void b43_hf_write(struct b43_wldev *dev, u32 value); + +void b43_dummy_transmission(struct b43_wldev *dev); + +void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags); + +void b43_mac_suspend(struct b43_wldev *dev); +void b43_mac_enable(struct b43_wldev *dev); + +void b43_controller_restart(struct b43_wldev *dev, const char *reason); + +#define B43_PS_ENABLED (1 << 0) /* Force enable hardware power saving */ +#define B43_PS_DISABLED (1 << 1) /* Force disable hardware power saving */ +#define B43_PS_AWAKE (1 << 2) /* Force device awake */ +#define B43_PS_ASLEEP (1 << 3) /* Force device asleep */ +void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags); + +#endif /* B43_MAIN_H_ */ diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c new file mode 100644 index 000000000000..3e75a8a12c96 --- /dev/null +++ b/drivers/net/wireless/b43/pcmcia.c @@ -0,0 +1,157 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2007 Michael Buesch <mb@bu3sch.de> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/ssb/ssb.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/ciscode.h> +#include <pcmcia/ds.h> +#include <pcmcia/cisreg.h> + +static /*const */ struct pcmcia_device_id b43_pcmcia_tbl[] = { + PCMCIA_DEVICE_MANF_CARD(0x2D0, 0x448), + PCMCIA_DEVICE_NULL, +}; + +MODULE_DEVICE_TABLE(pcmcia, b43_pcmcia_tbl); + +#ifdef CONFIG_PM +static int b43_pcmcia_suspend(struct pcmcia_device *dev) +{ + //TODO + return 0; +} + +static int b43_pcmcia_resume(struct pcmcia_device *dev) +{ + //TODO + return 0; +} +#else /* CONFIG_PM */ +# define b43_pcmcia_suspend NULL +# define b43_pcmcia_resume NULL +#endif /* CONFIG_PM */ + +static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev) +{ + struct ssb_bus *ssb; + win_req_t win; + memreq_t mem; + tuple_t tuple; + cisparse_t parse; + int err = -ENOMEM; + int res; + unsigned char buf[64]; + + ssb = kzalloc(sizeof(*ssb), GFP_KERNEL); + if (!ssb) + goto out; + + err = -ENODEV; + tuple.DesiredTuple = CISTPL_CONFIG; + tuple.Attributes = 0; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + + res = pcmcia_get_first_tuple(dev, &tuple); + if (res != CS_SUCCESS) + goto err_kfree_ssb; + res = pcmcia_get_tuple_data(dev, &tuple); + if (res != CS_SUCCESS) + goto err_kfree_ssb; + res = pcmcia_parse_tuple(dev, &tuple, &parse); + if (res != CS_SUCCESS) + goto err_kfree_ssb; + + dev->conf.ConfigBase = parse.config.base; + dev->conf.Present = parse.config.rmask[0]; + + dev->io.BasePort2 = 0; + dev->io.NumPorts2 = 0; + dev->io.Attributes2 = 0; + + win.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE | WIN_USE_WAIT; + win.Base = 0; + win.Size = SSB_CORE_SIZE; + win.AccessSpeed = 1000; + res = pcmcia_request_window(&dev, &win, &dev->win); + if (res != CS_SUCCESS) + goto err_kfree_ssb; + + mem.CardOffset = 0; + mem.Page = 0; + res = pcmcia_map_mem_page(dev->win, &mem); + if (res != CS_SUCCESS) + goto err_kfree_ssb; + + res = pcmcia_request_configuration(dev, &dev->conf); + if (res != CS_SUCCESS) + goto err_disable; + + err = ssb_bus_pcmciabus_register(ssb, dev, win.Base); + dev->priv = ssb; + + out: + return err; + err_disable: + pcmcia_disable_device(dev); + err_kfree_ssb: + kfree(ssb); + return err; +} + +static void __devexit b43_pcmcia_remove(struct pcmcia_device *dev) +{ + struct ssb_bus *ssb = dev->priv; + + ssb_bus_unregister(ssb); + pcmcia_release_window(dev->win); + pcmcia_disable_device(dev); + kfree(ssb); + dev->priv = NULL; +} + +static struct pcmcia_driver b43_pcmcia_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "b43-pcmcia", + }, + .id_table = b43_pcmcia_tbl, + .probe = b43_pcmcia_probe, + .remove = b43_pcmcia_remove, + .suspend = b43_pcmcia_suspend, + .resume = b43_pcmcia_resume, +}; + +int b43_pcmcia_init(void) +{ + return pcmcia_register_driver(&b43_pcmcia_driver); +} + +void b43_pcmcia_exit(void) +{ + pcmcia_unregister_driver(&b43_pcmcia_driver); +} diff --git a/drivers/net/wireless/b43/pcmcia.h b/drivers/net/wireless/b43/pcmcia.h new file mode 100644 index 000000000000..85f120a67cbe --- /dev/null +++ b/drivers/net/wireless/b43/pcmcia.h @@ -0,0 +1,20 @@ +#ifndef B43_PCMCIA_H_ +#define B43_PCMCIA_H_ + +#ifdef CONFIG_B43_PCMCIA + +int b43_pcmcia_init(void); +void b43_pcmcia_exit(void); + +#else /* CONFIG_B43_PCMCIA */ + +static inline int b43_pcmcia_init(void) +{ + return 0; +} +static inline void b43_pcmcia_exit(void) +{ +} + +#endif /* CONFIG_B43_PCMCIA */ +#endif /* B43_PCMCIA_H_ */ diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c new file mode 100644 index 000000000000..3282893021b0 --- /dev/null +++ b/drivers/net/wireless/b43/phy.c @@ -0,0 +1,4351 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Copyright (c) 2005, 2006 Stefano Brivio <st3@riseup.net> + Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> + Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include <linux/delay.h> +#include <linux/types.h> + +#include "b43.h" +#include "phy.h" +#include "main.h" +#include "tables.h" +#include "lo.h" + +static const s8 b43_tssi2dbm_b_table[] = { + 0x4D, 0x4C, 0x4B, 0x4A, + 0x4A, 0x49, 0x48, 0x47, + 0x47, 0x46, 0x45, 0x45, + 0x44, 0x43, 0x42, 0x42, + 0x41, 0x40, 0x3F, 0x3E, + 0x3D, 0x3C, 0x3B, 0x3A, + 0x39, 0x38, 0x37, 0x36, + 0x35, 0x34, 0x32, 0x31, + 0x30, 0x2F, 0x2D, 0x2C, + 0x2B, 0x29, 0x28, 0x26, + 0x25, 0x23, 0x21, 0x1F, + 0x1D, 0x1A, 0x17, 0x14, + 0x10, 0x0C, 0x06, 0x00, + -7, -7, -7, -7, + -7, -7, -7, -7, + -7, -7, -7, -7, +}; + +static const s8 b43_tssi2dbm_g_table[] = { + 77, 77, 77, 76, + 76, 76, 75, 75, + 74, 74, 73, 73, + 73, 72, 72, 71, + 71, 70, 70, 69, + 68, 68, 67, 67, + 66, 65, 65, 64, + 63, 63, 62, 61, + 60, 59, 58, 57, + 56, 55, 54, 53, + 52, 50, 49, 47, + 45, 43, 40, 37, + 33, 28, 22, 14, + 5, -7, -20, -20, + -20, -20, -20, -20, + -20, -20, -20, -20, +}; + +const u8 b43_radio_channel_codes_bg[] = { + 12, 17, 22, 27, + 32, 37, 42, 47, + 52, 57, 62, 67, + 72, 84, +}; + +static void b43_phy_initg(struct b43_wldev *dev); + +/* Reverse the bits of a 4bit value. + * Example: 1101 is flipped 1011 + */ +static u16 flip_4bit(u16 value) +{ + u16 flipped = 0x0000; + + B43_WARN_ON(value & ~0x000F); + + flipped |= (value & 0x0001) << 3; + flipped |= (value & 0x0002) << 1; + flipped |= (value & 0x0004) >> 1; + flipped |= (value & 0x0008) >> 3; + + return flipped; +} + +static void generate_rfatt_list(struct b43_wldev *dev, + struct b43_rfatt_list *list) +{ + struct b43_phy *phy = &dev->phy; + + /* APHY.rev < 5 || GPHY.rev < 6 */ + static const struct b43_rfatt rfatt_0[] = { + {.att = 3,.with_padmix = 0,}, + {.att = 1,.with_padmix = 0,}, + {.att = 5,.with_padmix = 0,}, + {.att = 7,.with_padmix = 0,}, + {.att = 9,.with_padmix = 0,}, + {.att = 2,.with_padmix = 0,}, + {.att = 0,.with_padmix = 0,}, + {.att = 4,.with_padmix = 0,}, + {.att = 6,.with_padmix = 0,}, + {.att = 8,.with_padmix = 0,}, + {.att = 1,.with_padmix = 1,}, + {.att = 2,.with_padmix = 1,}, + {.att = 3,.with_padmix = 1,}, + {.att = 4,.with_padmix = 1,}, + }; + /* Radio.rev == 8 && Radio.version == 0x2050 */ + static const struct b43_rfatt rfatt_1[] = { + {.att = 2,.with_padmix = 1,}, + {.att = 4,.with_padmix = 1,}, + {.att = 6,.with_padmix = 1,}, + {.att = 8,.with_padmix = 1,}, + {.att = 10,.with_padmix = 1,}, + {.att = 12,.with_padmix = 1,}, + {.att = 14,.with_padmix = 1,}, + }; + /* Otherwise */ + static const struct b43_rfatt rfatt_2[] = { + {.att = 0,.with_padmix = 1,}, + {.att = 2,.with_padmix = 1,}, + {.att = 4,.with_padmix = 1,}, + {.att = 6,.with_padmix = 1,}, + {.att = 8,.with_padmix = 1,}, + {.att = 9,.with_padmix = 1,}, + {.att = 9,.with_padmix = 1,}, + }; + + if ((phy->type == B43_PHYTYPE_A && phy->rev < 5) || + (phy->type == B43_PHYTYPE_G && phy->rev < 6)) { + /* Software pctl */ + list->list = rfatt_0; + list->len = ARRAY_SIZE(rfatt_0); + list->min_val = 0; + list->max_val = 9; + return; + } + if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { + /* Hardware pctl */ + list->list = rfatt_1; + list->len = ARRAY_SIZE(rfatt_1); + list->min_val = 2; + list->max_val = 14; + return; + } + /* Hardware pctl */ + list->list = rfatt_2; + list->len = ARRAY_SIZE(rfatt_2); + list->min_val = 0; + list->max_val = 9; +} + +static void generate_bbatt_list(struct b43_wldev *dev, + struct b43_bbatt_list *list) +{ + static const struct b43_bbatt bbatt_0[] = { + {.att = 0,}, + {.att = 1,}, + {.att = 2,}, + {.att = 3,}, + {.att = 4,}, + {.att = 5,}, + {.att = 6,}, + {.att = 7,}, + {.att = 8,}, + }; + + list->list = bbatt_0; + list->len = ARRAY_SIZE(bbatt_0); + list->min_val = 0; + list->max_val = 8; +} + +bool b43_has_hardware_pctl(struct b43_phy *phy) +{ + if (!phy->hardware_power_control) + return 0; + switch (phy->type) { + case B43_PHYTYPE_A: + if (phy->rev >= 5) + return 1; + break; + case B43_PHYTYPE_G: + if (phy->rev >= 6) + return 1; + break; + default: + B43_WARN_ON(1); + } + return 0; +} + +static void b43_shm_clear_tssi(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + switch (phy->type) { + case B43_PHYTYPE_A: + b43_shm_write16(dev, B43_SHM_SHARED, 0x0068, 0x7F7F); + b43_shm_write16(dev, B43_SHM_SHARED, 0x006a, 0x7F7F); + break; + case B43_PHYTYPE_B: + case B43_PHYTYPE_G: + b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F); + b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F); + break; + } +} + +void b43_raw_phy_lock(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + B43_WARN_ON(!irqs_disabled()); + + /* We had a check for MACCTL==0 here, but I think that doesn't + * make sense, as MACCTL is never 0 when this is called. + * --mb */ + B43_WARN_ON(b43_read32(dev, B43_MMIO_MACCTL) == 0); + + if (dev->dev->id.revision < 3) { + b43_mac_suspend(dev); + spin_lock(&phy->lock); + } else { + if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) + b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); + } + phy->locked = 1; +} + +void b43_raw_phy_unlock(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + B43_WARN_ON(!irqs_disabled()); + if (dev->dev->id.revision < 3) { + if (phy->locked) { + spin_unlock(&phy->lock); + b43_mac_enable(dev); + } + } else { + if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) + b43_power_saving_ctl_bits(dev, 0); + } + phy->locked = 0; +} + +/* Different PHYs require different register routing flags. + * This adjusts (and does sanity checks on) the routing flags. + */ +static inline u16 adjust_phyreg_for_phytype(struct b43_phy *phy, + u16 offset, struct b43_wldev *dev) +{ + if (phy->type == B43_PHYTYPE_A) { + /* OFDM registers are base-registers for the A-PHY. */ + offset &= ~B43_PHYROUTE_OFDM_GPHY; + } + if (offset & B43_PHYROUTE_EXT_GPHY) { + /* Ext-G registers are only available on G-PHYs */ + if (phy->type != B43_PHYTYPE_G) { + b43dbg(dev->wl, "EXT-G PHY access at " + "0x%04X on %u type PHY\n", offset, phy->type); + } + } + + return offset; +} + +u16 b43_phy_read(struct b43_wldev * dev, u16 offset) +{ + struct b43_phy *phy = &dev->phy; + + offset = adjust_phyreg_for_phytype(phy, offset, dev); + b43_write16(dev, B43_MMIO_PHY_CONTROL, offset); + return b43_read16(dev, B43_MMIO_PHY_DATA); +} + +void b43_phy_write(struct b43_wldev *dev, u16 offset, u16 val) +{ + struct b43_phy *phy = &dev->phy; + + offset = adjust_phyreg_for_phytype(phy, offset, dev); + b43_write16(dev, B43_MMIO_PHY_CONTROL, offset); + mmiowb(); + b43_write16(dev, B43_MMIO_PHY_DATA, val); +} + +static void b43_radio_set_txpower_a(struct b43_wldev *dev, u16 txpower); + +/* Adjust the transmission power output (G-PHY) */ +void b43_set_txpower_g(struct b43_wldev *dev, + const struct b43_bbatt *bbatt, + const struct b43_rfatt *rfatt, u8 tx_control) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 bb, rf; + u16 tx_bias, tx_magn; + + bb = bbatt->att; + rf = rfatt->att; + tx_bias = lo->tx_bias; + tx_magn = lo->tx_magn; + if (unlikely(tx_bias == 0xFF)) + tx_bias = 0; + + /* Save the values for later */ + phy->tx_control = tx_control; + memcpy(&phy->rfatt, rfatt, sizeof(*rfatt)); + memcpy(&phy->bbatt, bbatt, sizeof(*bbatt)); + + if (b43_debug(dev, B43_DBG_XMITPOWER)) { + b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), " + "rfatt(%u), tx_control(0x%02X), " + "tx_bias(0x%02X), tx_magn(0x%02X)\n", + bb, rf, tx_control, tx_bias, tx_magn); + } + + b43_phy_set_baseband_attenuation(dev, bb); + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf); + if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { + b43_radio_write16(dev, 0x43, + (rf & 0x000F) | (tx_control & 0x0070)); + } else { + b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43) + & 0xFFF0) | (rf & 0x000F)); + b43_radio_write16(dev, 0x52, (b43_radio_read16(dev, 0x52) + & ~0x0070) | (tx_control & + 0x0070)); + } + if (has_tx_magnification(phy)) { + b43_radio_write16(dev, 0x52, tx_magn | tx_bias); + } else { + b43_radio_write16(dev, 0x52, (b43_radio_read16(dev, 0x52) + & 0xFFF0) | (tx_bias & 0x000F)); + } + if (phy->type == B43_PHYTYPE_G) + b43_lo_g_adjust(dev); +} + +static void default_baseband_attenuation(struct b43_wldev *dev, + struct b43_bbatt *bb) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->radio_ver == 0x2050 && phy->radio_rev < 6) + bb->att = 0; + else + bb->att = 2; +} + +static void default_radio_attenuation(struct b43_wldev *dev, + struct b43_rfatt *rf) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + + rf->with_padmix = 0; + + if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM && + bus->boardinfo.type == SSB_BOARD_BCM4309G) { + if (bus->boardinfo.rev < 0x43) { + rf->att = 2; + return; + } else if (bus->boardinfo.rev < 0x51) { + rf->att = 3; + return; + } + } + + if (phy->type == B43_PHYTYPE_A) { + rf->att = 0x60; + return; + } + + switch (phy->radio_ver) { + case 0x2053: + switch (phy->radio_rev) { + case 1: + rf->att = 6; + return; + } + break; + case 0x2050: + switch (phy->radio_rev) { + case 0: + rf->att = 5; + return; + case 1: + if (phy->type == B43_PHYTYPE_G) { + if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM + && bus->boardinfo.type == SSB_BOARD_BCM4309G + && bus->boardinfo.rev >= 30) + rf->att = 3; + else if (bus->boardinfo.vendor == + SSB_BOARDVENDOR_BCM + && bus->boardinfo.type == + SSB_BOARD_BU4306) + rf->att = 3; + else + rf->att = 1; + } else { + if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM + && bus->boardinfo.type == SSB_BOARD_BCM4309G + && bus->boardinfo.rev >= 30) + rf->att = 7; + else + rf->att = 6; + } + return; + case 2: + if (phy->type == B43_PHYTYPE_G) { + if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM + && bus->boardinfo.type == SSB_BOARD_BCM4309G + && bus->boardinfo.rev >= 30) + rf->att = 3; + else if (bus->boardinfo.vendor == + SSB_BOARDVENDOR_BCM + && bus->boardinfo.type == + SSB_BOARD_BU4306) + rf->att = 5; + else if (bus->chip_id == 0x4320) + rf->att = 4; + else + rf->att = 3; + } else + rf->att = 6; + return; + case 3: + rf->att = 5; + return; + case 4: + case 5: + rf->att = 1; + return; + case 6: + case 7: + rf->att = 5; + return; + case 8: + rf->att = 0xA; + rf->with_padmix = 1; + return; + case 9: + default: + rf->att = 5; + return; + } + } + rf->att = 5; +} + +static u16 default_tx_control(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->radio_ver != 0x2050) + return 0; + if (phy->radio_rev == 1) + return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX; + if (phy->radio_rev < 6) + return B43_TXCTL_PA2DB; + if (phy->radio_rev == 8) + return B43_TXCTL_TXMIX; + return 0; +} + +/* This func is called "PHY calibrate" in the specs... */ +void b43_phy_early_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + + default_baseband_attenuation(dev, &phy->bbatt); + default_radio_attenuation(dev, &phy->rfatt); + phy->tx_control = (default_tx_control(dev) << 4); + + /* Commit previous writes */ + b43_read32(dev, B43_MMIO_MACCTL); + + if (phy->type == B43_PHYTYPE_B || phy->type == B43_PHYTYPE_G) { + generate_rfatt_list(dev, &lo->rfatt_list); + generate_bbatt_list(dev, &lo->bbatt_list); + } + if (phy->type == B43_PHYTYPE_G && phy->rev == 1) { + /* Workaround: Temporarly disable gmode through the early init + * phase, as the gmode stuff is not needed for phy rev 1 */ + phy->gmode = 0; + b43_wireless_core_reset(dev, 0); + b43_phy_initg(dev); + phy->gmode = 1; + b43_wireless_core_reset(dev, B43_TMSLOW_GMODE); + } +} + +/* GPHY_TSSI_Power_Lookup_Table_Init */ +static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + int i; + u16 value; + + for (i = 0; i < 32; i++) + b43_ofdmtab_write16(dev, 0x3C20, i, phy->tssi2dbm[i]); + for (i = 32; i < 64; i++) + b43_ofdmtab_write16(dev, 0x3C00, i - 32, phy->tssi2dbm[i]); + for (i = 0; i < 64; i += 2) { + value = (u16) phy->tssi2dbm[i]; + value |= ((u16) phy->tssi2dbm[i + 1]) << 8; + b43_phy_write(dev, 0x380 + (i / 2), value); + } +} + +/* GPHY_Gain_Lookup_Table_Init */ +static void b43_gphy_gain_lt_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + u16 nr_written = 0; + u16 tmp; + u8 rf, bb; + + if (!lo->lo_measured) { + b43_phy_write(dev, 0x3FF, 0); + return; + } + + for (rf = 0; rf < lo->rfatt_list.len; rf++) { + for (bb = 0; bb < lo->bbatt_list.len; bb++) { + if (nr_written >= 0x40) + return; + tmp = lo->bbatt_list.list[bb].att; + tmp <<= 8; + if (phy->radio_rev == 8) + tmp |= 0x50; + else + tmp |= 0x40; + tmp |= lo->rfatt_list.list[rf].att; + b43_phy_write(dev, 0x3C0 + nr_written, tmp); + nr_written++; + } + } +} + +/* GPHY_DC_Lookup_Table */ +void b43_gphy_dc_lt_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct b43_txpower_lo_control *lo = phy->lo_control; + struct b43_loctl *loctl0; + struct b43_loctl *loctl1; + int i; + int rf_offset, bb_offset; + u16 tmp; + + for (i = 0; i < lo->rfatt_list.len + lo->bbatt_list.len; i += 2) { + rf_offset = i / lo->rfatt_list.len; + bb_offset = i % lo->rfatt_list.len; + + loctl0 = b43_get_lo_g_ctl(dev, &lo->rfatt_list.list[rf_offset], + &lo->bbatt_list.list[bb_offset]); + if (i + 1 < lo->rfatt_list.len * lo->bbatt_list.len) { + rf_offset = (i + 1) / lo->rfatt_list.len; + bb_offset = (i + 1) % lo->rfatt_list.len; + + loctl1 = + b43_get_lo_g_ctl(dev, + &lo->rfatt_list.list[rf_offset], + &lo->bbatt_list.list[bb_offset]); + } else + loctl1 = loctl0; + + tmp = ((u16) loctl0->q & 0xF); + tmp |= ((u16) loctl0->i & 0xF) << 4; + tmp |= ((u16) loctl1->q & 0xF) << 8; + tmp |= ((u16) loctl1->i & 0xF) << 12; //FIXME? + b43_phy_write(dev, 0x3A0 + (i / 2), tmp); + } +} + +static void hardware_pctl_init_aphy(struct b43_wldev *dev) +{ + //TODO +} + +static void hardware_pctl_init_gphy(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + b43_phy_write(dev, 0x0036, (b43_phy_read(dev, 0x0036) & 0xFFC0) + | (phy->tgt_idle_tssi - phy->cur_idle_tssi)); + b43_phy_write(dev, 0x0478, (b43_phy_read(dev, 0x0478) & 0xFF00) + | (phy->tgt_idle_tssi - phy->cur_idle_tssi)); + b43_gphy_tssi_power_lt_init(dev); + b43_gphy_gain_lt_init(dev); + b43_phy_write(dev, 0x0060, b43_phy_read(dev, 0x0060) & 0xFFBF); + b43_phy_write(dev, 0x0014, 0x0000); + + B43_WARN_ON(phy->rev < 6); + b43_phy_write(dev, 0x0478, b43_phy_read(dev, 0x0478) + | 0x0800); + b43_phy_write(dev, 0x0478, b43_phy_read(dev, 0x0478) + & 0xFEFF); + b43_phy_write(dev, 0x0801, b43_phy_read(dev, 0x0801) + & 0xFFBF); + + b43_gphy_dc_lt_init(dev); +} + +/* HardwarePowerControl init for A and G PHY */ +static void b43_hardware_pctl_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (!b43_has_hardware_pctl(phy)) { + /* No hardware power control */ + b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL); + return; + } + /* Init the hwpctl related hardware */ + switch (phy->type) { + case B43_PHYTYPE_A: + hardware_pctl_init_aphy(dev); + break; + case B43_PHYTYPE_G: + hardware_pctl_init_gphy(dev); + break; + default: + B43_WARN_ON(1); + } + /* Enable hardware pctl in firmware. */ + b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL); +} + +static void b43_hardware_pctl_early_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (!b43_has_hardware_pctl(phy)) { + b43_phy_write(dev, 0x047A, 0xC111); + return; + } + + b43_phy_write(dev, 0x0036, b43_phy_read(dev, 0x0036) & 0xFEFF); + b43_phy_write(dev, 0x002F, 0x0202); + b43_phy_write(dev, 0x047C, b43_phy_read(dev, 0x047C) | 0x0002); + b43_phy_write(dev, 0x047A, b43_phy_read(dev, 0x047A) | 0xF000); + if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) { + b43_phy_write(dev, 0x047A, (b43_phy_read(dev, 0x047A) + & 0xFF0F) | 0x0010); + b43_phy_write(dev, 0x005D, b43_phy_read(dev, 0x005D) + | 0x8000); + b43_phy_write(dev, 0x004E, (b43_phy_read(dev, 0x004E) + & 0xFFC0) | 0x0010); + b43_phy_write(dev, 0x002E, 0xC07F); + b43_phy_write(dev, 0x0036, b43_phy_read(dev, 0x0036) + | 0x0400); + } else { + b43_phy_write(dev, 0x0036, b43_phy_read(dev, 0x0036) + | 0x0200); + b43_phy_write(dev, 0x0036, b43_phy_read(dev, 0x0036) + | 0x0400); + b43_phy_write(dev, 0x005D, b43_phy_read(dev, 0x005D) + & 0x7FFF); + b43_phy_write(dev, 0x004F, b43_phy_read(dev, 0x004F) + & 0xFFFE); + b43_phy_write(dev, 0x004E, (b43_phy_read(dev, 0x004E) + & 0xFFC0) | 0x0010); + b43_phy_write(dev, 0x002E, 0xC07F); + b43_phy_write(dev, 0x047A, (b43_phy_read(dev, 0x047A) + & 0xFF0F) | 0x0010); + } +} + +/* Intialize B/G PHY power control + * as described in http://bcm-specs.sipsolutions.net/InitPowerControl + */ +static void b43_phy_init_pctl(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + struct b43_rfatt old_rfatt; + struct b43_bbatt old_bbatt; + u8 old_tx_control = 0; + + if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) && + (bus->boardinfo.type == SSB_BOARD_BU4306)) + return; + + b43_phy_write(dev, 0x0028, 0x8018); + + /* This does something with the Analog... */ + b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0) + & 0xFFDF); + + if (phy->type == B43_PHYTYPE_G && !phy->gmode) + return; + b43_hardware_pctl_early_init(dev); + if (phy->cur_idle_tssi == 0) { + if (phy->radio_ver == 0x2050 && phy->analog == 0) { + b43_radio_write16(dev, 0x0076, + (b43_radio_read16(dev, 0x0076) + & 0x00F7) | 0x0084); + } else { + struct b43_rfatt rfatt; + struct b43_bbatt bbatt; + + memcpy(&old_rfatt, &phy->rfatt, sizeof(old_rfatt)); + memcpy(&old_bbatt, &phy->bbatt, sizeof(old_bbatt)); + old_tx_control = phy->tx_control; + + bbatt.att = 11; + if (phy->radio_rev == 8) { + rfatt.att = 15; + rfatt.with_padmix = 1; + } else { + rfatt.att = 9; + rfatt.with_padmix = 0; + } + b43_set_txpower_g(dev, &bbatt, &rfatt, 0); + } + b43_dummy_transmission(dev); + phy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI); + if (B43_DEBUG) { + /* Current-Idle-TSSI sanity check. */ + if (abs(phy->cur_idle_tssi - phy->tgt_idle_tssi) >= 20) { + b43dbg(dev->wl, + "!WARNING! Idle-TSSI phy->cur_idle_tssi " + "measuring failed. (cur=%d, tgt=%d). Disabling TX power " + "adjustment.\n", phy->cur_idle_tssi, + phy->tgt_idle_tssi); + phy->cur_idle_tssi = 0; + } + } + if (phy->radio_ver == 0x2050 && phy->analog == 0) { + b43_radio_write16(dev, 0x0076, + b43_radio_read16(dev, 0x0076) + & 0xFF7B); + } else { + b43_set_txpower_g(dev, &old_bbatt, + &old_rfatt, old_tx_control); + } + } + b43_hardware_pctl_init(dev); + b43_shm_clear_tssi(dev); +} + +static void b43_phy_agcsetup(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 offset = 0x0000; + + if (phy->rev == 1) + offset = 0x4C00; + + b43_ofdmtab_write16(dev, offset, 0, 0x00FE); + b43_ofdmtab_write16(dev, offset, 1, 0x000D); + b43_ofdmtab_write16(dev, offset, 2, 0x0013); + b43_ofdmtab_write16(dev, offset, 3, 0x0019); + + if (phy->rev == 1) { + b43_ofdmtab_write16(dev, 0x1800, 0, 0x2710); + b43_ofdmtab_write16(dev, 0x1801, 0, 0x9B83); + b43_ofdmtab_write16(dev, 0x1802, 0, 0x9B83); + b43_ofdmtab_write16(dev, 0x1803, 0, 0x0F8D); + b43_phy_write(dev, 0x0455, 0x0004); + } + + b43_phy_write(dev, 0x04A5, (b43_phy_read(dev, 0x04A5) + & 0x00FF) | 0x5700); + b43_phy_write(dev, 0x041A, (b43_phy_read(dev, 0x041A) + & 0xFF80) | 0x000F); + b43_phy_write(dev, 0x041A, (b43_phy_read(dev, 0x041A) + & 0xC07F) | 0x2B80); + b43_phy_write(dev, 0x048C, (b43_phy_read(dev, 0x048C) + & 0xF0FF) | 0x0300); + + b43_radio_write16(dev, 0x007A, b43_radio_read16(dev, 0x007A) + | 0x0008); + + b43_phy_write(dev, 0x04A0, (b43_phy_read(dev, 0x04A0) + & 0xFFF0) | 0x0008); + b43_phy_write(dev, 0x04A1, (b43_phy_read(dev, 0x04A1) + & 0xF0FF) | 0x0600); + b43_phy_write(dev, 0x04A2, (b43_phy_read(dev, 0x04A2) + & 0xF0FF) | 0x0700); + b43_phy_write(dev, 0x04A0, (b43_phy_read(dev, 0x04A0) + & 0xF0FF) | 0x0100); + + if (phy->rev == 1) { + b43_phy_write(dev, 0x04A2, (b43_phy_read(dev, 0x04A2) + & 0xFFF0) | 0x0007); + } + + b43_phy_write(dev, 0x0488, (b43_phy_read(dev, 0x0488) + & 0xFF00) | 0x001C); + b43_phy_write(dev, 0x0488, (b43_phy_read(dev, 0x0488) + & 0xC0FF) | 0x0200); + b43_phy_write(dev, 0x0496, (b43_phy_read(dev, 0x0496) + & 0xFF00) | 0x001C); + b43_phy_write(dev, 0x0489, (b43_phy_read(dev, 0x0489) + & 0xFF00) | 0x0020); + b43_phy_write(dev, 0x0489, (b43_phy_read(dev, 0x0489) + & 0xC0FF) | 0x0200); + b43_phy_write(dev, 0x0482, (b43_phy_read(dev, 0x0482) + & 0xFF00) | 0x002E); + b43_phy_write(dev, 0x0496, (b43_phy_read(dev, 0x0496) + & 0x00FF) | 0x1A00); + b43_phy_write(dev, 0x0481, (b43_phy_read(dev, 0x0481) + & 0xFF00) | 0x0028); + b43_phy_write(dev, 0x0481, (b43_phy_read(dev, 0x0481) + & 0x00FF) | 0x2C00); + + if (phy->rev == 1) { + b43_phy_write(dev, 0x0430, 0x092B); + b43_phy_write(dev, 0x041B, (b43_phy_read(dev, 0x041B) + & 0xFFE1) | 0x0002); + } else { + b43_phy_write(dev, 0x041B, b43_phy_read(dev, 0x041B) + & 0xFFE1); + b43_phy_write(dev, 0x041F, 0x287A); + b43_phy_write(dev, 0x0420, (b43_phy_read(dev, 0x0420) + & 0xFFF0) | 0x0004); + } + + if (phy->rev >= 6) { + b43_phy_write(dev, 0x0422, 0x287A); + b43_phy_write(dev, 0x0420, (b43_phy_read(dev, 0x0420) + & 0x0FFF) | 0x3000); + } + + b43_phy_write(dev, 0x04A8, (b43_phy_read(dev, 0x04A8) + & 0x8080) | 0x7874); + b43_phy_write(dev, 0x048E, 0x1C00); + + offset = 0x0800; + if (phy->rev == 1) { + offset = 0x5400; + b43_phy_write(dev, 0x04AB, (b43_phy_read(dev, 0x04AB) + & 0xF0FF) | 0x0600); + b43_phy_write(dev, 0x048B, 0x005E); + b43_phy_write(dev, 0x048C, (b43_phy_read(dev, 0x048C) + & 0xFF00) | 0x001E); + b43_phy_write(dev, 0x048D, 0x0002); + } + b43_ofdmtab_write16(dev, offset, 0, 0x00); + b43_ofdmtab_write16(dev, offset, 1, 0x07); + b43_ofdmtab_write16(dev, offset, 2, 0x10); + b43_ofdmtab_write16(dev, offset, 3, 0x1C); + + if (phy->rev >= 6) { + b43_phy_write(dev, 0x0426, b43_phy_read(dev, 0x0426) + & 0xFFFC); + b43_phy_write(dev, 0x0426, b43_phy_read(dev, 0x0426) + & 0xEFFF); + } +} + +static void b43_phy_setupg(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + u16 i; + + B43_WARN_ON(phy->type != B43_PHYTYPE_G); + if (phy->rev == 1) { + b43_phy_write(dev, 0x0406, 0x4F19); + b43_phy_write(dev, B43_PHY_G_CRS, + (b43_phy_read(dev, B43_PHY_G_CRS) & 0xFC3F) | + 0x0340); + b43_phy_write(dev, 0x042C, 0x005A); + b43_phy_write(dev, 0x0427, 0x001A); + + for (i = 0; i < B43_TAB_FINEFREQG_SIZE; i++) + b43_ofdmtab_write16(dev, 0x5800, i, + b43_tab_finefreqg[i]); + for (i = 0; i < B43_TAB_NOISEG1_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1800, i, b43_tab_noiseg1[i]); + for (i = 0; i < B43_TAB_ROTOR_SIZE; i++) + b43_ofdmtab_write16(dev, 0x2000, i, b43_tab_rotor[i]); + } else { + /* nrssi values are signed 6-bit values. Not sure why we write 0x7654 here... */ + b43_nrssi_hw_write(dev, 0xBA98, (s16) 0x7654); + + if (phy->rev == 2) { + b43_phy_write(dev, 0x04C0, 0x1861); + b43_phy_write(dev, 0x04C1, 0x0271); + } else if (phy->rev > 2) { + b43_phy_write(dev, 0x04C0, 0x0098); + b43_phy_write(dev, 0x04C1, 0x0070); + b43_phy_write(dev, 0x04C9, 0x0080); + } + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) | 0x800); + + for (i = 0; i < 64; i++) + b43_ofdmtab_write16(dev, 0x4000, i, i); + for (i = 0; i < B43_TAB_NOISEG2_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1800, i, b43_tab_noiseg2[i]); + } + + if (phy->rev <= 2) + for (i = 0; i < B43_TAB_NOISESCALEG_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1400, i, + b43_tab_noisescaleg1[i]); + else if ((phy->rev >= 7) && (b43_phy_read(dev, 0x0449) & 0x0200)) + for (i = 0; i < B43_TAB_NOISESCALEG_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1400, i, + b43_tab_noisescaleg3[i]); + else + for (i = 0; i < B43_TAB_NOISESCALEG_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1400, i, + b43_tab_noisescaleg2[i]); + + if (phy->rev == 2) + for (i = 0; i < B43_TAB_SIGMASQR_SIZE; i++) + b43_ofdmtab_write16(dev, 0x5000, i, + b43_tab_sigmasqr1[i]); + else if ((phy->rev > 2) && (phy->rev <= 8)) + for (i = 0; i < B43_TAB_SIGMASQR_SIZE; i++) + b43_ofdmtab_write16(dev, 0x5000, i, + b43_tab_sigmasqr2[i]); + + if (phy->rev == 1) { + for (i = 0; i < B43_TAB_RETARD_SIZE; i++) + b43_ofdmtab_write32(dev, 0x2400, i, b43_tab_retard[i]); + for (i = 4; i < 20; i++) + b43_ofdmtab_write16(dev, 0x5400, i, 0x0020); + b43_phy_agcsetup(dev); + + if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) && + (bus->boardinfo.type == SSB_BOARD_BU4306) && + (bus->boardinfo.rev == 0x17)) + return; + + b43_ofdmtab_write16(dev, 0x5001, 0, 0x0002); + b43_ofdmtab_write16(dev, 0x5002, 0, 0x0001); + } else { + for (i = 0; i < 0x20; i++) + b43_ofdmtab_write16(dev, 0x1000, i, 0x0820); + b43_phy_agcsetup(dev); + b43_phy_read(dev, 0x0400); /* dummy read */ + b43_phy_write(dev, 0x0403, 0x1000); + b43_ofdmtab_write16(dev, 0x3C02, 0, 0x000F); + b43_ofdmtab_write16(dev, 0x3C03, 0, 0x0014); + + if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) && + (bus->boardinfo.type == SSB_BOARD_BU4306) && + (bus->boardinfo.rev == 0x17)) + return; + + b43_ofdmtab_write16(dev, 0x0401, 0, 0x0002); + b43_ofdmtab_write16(dev, 0x0402, 0, 0x0001); + } +} + +/* Initialize the noisescaletable for APHY */ +static void b43_phy_init_noisescaletbl(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + int i; + + for (i = 0; i < 12; i++) { + if (phy->rev == 2) + b43_ofdmtab_write16(dev, 0x1400, i, 0x6767); + else + b43_ofdmtab_write16(dev, 0x1400, i, 0x2323); + } + if (phy->rev == 2) + b43_ofdmtab_write16(dev, 0x1400, i, 0x6700); + else + b43_ofdmtab_write16(dev, 0x1400, i, 0x2300); + for (i = 0; i < 11; i++) { + if (phy->rev == 2) + b43_ofdmtab_write16(dev, 0x1400, i, 0x6767); + else + b43_ofdmtab_write16(dev, 0x1400, i, 0x2323); + } + if (phy->rev == 2) + b43_ofdmtab_write16(dev, 0x1400, i, 0x0067); + else + b43_ofdmtab_write16(dev, 0x1400, i, 0x0023); +} + +static void b43_phy_setupa(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 i; + + B43_WARN_ON(phy->type != B43_PHYTYPE_A); + switch (phy->rev) { + case 2: + b43_phy_write(dev, 0x008E, 0x3800); + b43_phy_write(dev, 0x0035, 0x03FF); + b43_phy_write(dev, 0x0036, 0x0400); + + b43_ofdmtab_write16(dev, 0x3807, 0, 0x0051); + + b43_phy_write(dev, 0x001C, 0x0FF9); + b43_phy_write(dev, 0x0020, b43_phy_read(dev, 0x0020) & 0xFF0F); + b43_ofdmtab_write16(dev, 0x3C0C, 0, 0x07BF); + b43_radio_write16(dev, 0x0002, 0x07BF); + + b43_phy_write(dev, 0x0024, 0x4680); + b43_phy_write(dev, 0x0020, 0x0003); + b43_phy_write(dev, 0x001D, 0x0F40); + b43_phy_write(dev, 0x001F, 0x1C00); + + b43_phy_write(dev, 0x002A, (b43_phy_read(dev, 0x002A) + & 0x00FF) | 0x0400); + b43_phy_write(dev, 0x002B, b43_phy_read(dev, 0x002B) + & 0xFBFF); + b43_phy_write(dev, 0x008E, 0x58C1); + + b43_ofdmtab_write16(dev, 0x0803, 0, 0x000F); + b43_ofdmtab_write16(dev, 0x0804, 0, 0x001F); + b43_ofdmtab_write16(dev, 0x0805, 0, 0x002A); + b43_ofdmtab_write16(dev, 0x0805, 0, 0x0030); + b43_ofdmtab_write16(dev, 0x0807, 0, 0x003A); + + b43_ofdmtab_write16(dev, 0x0000, 0, 0x0013); + b43_ofdmtab_write16(dev, 0x0000, 1, 0x0013); + b43_ofdmtab_write16(dev, 0x0000, 2, 0x0013); + b43_ofdmtab_write16(dev, 0x0000, 3, 0x0013); + b43_ofdmtab_write16(dev, 0x0000, 4, 0x0015); + b43_ofdmtab_write16(dev, 0x0000, 5, 0x0015); + b43_ofdmtab_write16(dev, 0x0000, 6, 0x0019); + + b43_ofdmtab_write16(dev, 0x0404, 0, 0x0003); + b43_ofdmtab_write16(dev, 0x0405, 0, 0x0003); + b43_ofdmtab_write16(dev, 0x0406, 0, 0x0007); + + for (i = 0; i < 16; i++) + b43_ofdmtab_write16(dev, 0x4000, i, (0x8 + i) & 0x000F); + + b43_ofdmtab_write16(dev, 0x3003, 0, 0x1044); + b43_ofdmtab_write16(dev, 0x3004, 0, 0x7201); + b43_ofdmtab_write16(dev, 0x3006, 0, 0x0040); + b43_ofdmtab_write16(dev, 0x3001, 0, + (b43_ofdmtab_read16(dev, 0x3001, 0) & + 0x0010) | 0x0008); + + for (i = 0; i < B43_TAB_FINEFREQA_SIZE; i++) + b43_ofdmtab_write16(dev, 0x5800, i, + b43_tab_finefreqa[i]); + for (i = 0; i < B43_TAB_NOISEA2_SIZE; i++) + b43_ofdmtab_write16(dev, 0x1800, i, b43_tab_noisea2[i]); + for (i = 0; i < B43_TAB_ROTOR_SIZE; i++) + b43_ofdmtab_write32(dev, 0x2000, i, b43_tab_rotor[i]); + b43_phy_init_noisescaletbl(dev); + for (i = 0; i < B43_TAB_RETARD_SIZE; i++) + b43_ofdmtab_write32(dev, 0x2400, i, b43_tab_retard[i]); + break; + case 3: + for (i = 0; i < 64; i++) + b43_ofdmtab_write16(dev, 0x4000, i, i); + + b43_ofdmtab_write16(dev, 0x3807, 0, 0x0051); + + b43_phy_write(dev, 0x001C, 0x0FF9); + b43_phy_write(dev, 0x0020, b43_phy_read(dev, 0x0020) & 0xFF0F); + b43_radio_write16(dev, 0x0002, 0x07BF); + + b43_phy_write(dev, 0x0024, 0x4680); + b43_phy_write(dev, 0x0020, 0x0003); + b43_phy_write(dev, 0x001D, 0x0F40); + b43_phy_write(dev, 0x001F, 0x1C00); + b43_phy_write(dev, 0x002A, (b43_phy_read(dev, 0x002A) + & 0x00FF) | 0x0400); + + b43_ofdmtab_write16(dev, 0x3000, 1, + (b43_ofdmtab_read16(dev, 0x3000, 1) + & 0x0010) | 0x0008); + for (i = 0; i < B43_TAB_NOISEA3_SIZE; i++) { + b43_ofdmtab_write16(dev, 0x1800, i, b43_tab_noisea3[i]); + } + b43_phy_init_noisescaletbl(dev); + for (i = 0; i < B43_TAB_SIGMASQR_SIZE; i++) { + b43_ofdmtab_write16(dev, 0x5000, i, + b43_tab_sigmasqr1[i]); + } + + b43_phy_write(dev, 0x0003, 0x1808); + + b43_ofdmtab_write16(dev, 0x0803, 0, 0x000F); + b43_ofdmtab_write16(dev, 0x0804, 0, 0x001F); + b43_ofdmtab_write16(dev, 0x0805, 0, 0x002A); + b43_ofdmtab_write16(dev, 0x0805, 0, 0x0030); + b43_ofdmtab_write16(dev, 0x0807, 0, 0x003A); + + b43_ofdmtab_write16(dev, 0x0000, 0, 0x0013); + b43_ofdmtab_write16(dev, 0x0001, 0, 0x0013); + b43_ofdmtab_write16(dev, 0x0002, 0, 0x0013); + b43_ofdmtab_write16(dev, 0x0003, 0, 0x0013); + b43_ofdmtab_write16(dev, 0x0004, 0, 0x0015); + b43_ofdmtab_write16(dev, 0x0005, 0, 0x0015); + b43_ofdmtab_write16(dev, 0x0006, 0, 0x0019); + + b43_ofdmtab_write16(dev, 0x0404, 0, 0x0003); + b43_ofdmtab_write16(dev, 0x0405, 0, 0x0003); + b43_ofdmtab_write16(dev, 0x0406, 0, 0x0007); + + b43_ofdmtab_write16(dev, 0x3C02, 0, 0x000F); + b43_ofdmtab_write16(dev, 0x3C03, 0, 0x0014); + break; + default: + B43_WARN_ON(1); + } +} + +/* Initialize APHY. This is also called for the GPHY in some cases. */ +static void b43_phy_inita(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + u16 tval; + + might_sleep(); + + if (phy->type == B43_PHYTYPE_A) { + b43_phy_setupa(dev); + } else { + b43_phy_setupg(dev); + if (phy->gmode && + (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_PACTRL)) + b43_phy_write(dev, 0x046E, 0x03CF); + return; + } + + b43_phy_write(dev, B43_PHY_A_CRS, + (b43_phy_read(dev, B43_PHY_A_CRS) & 0xF83C) | 0x0340); + b43_phy_write(dev, 0x0034, 0x0001); + + //TODO: RSSI AGC + b43_phy_write(dev, B43_PHY_A_CRS, + b43_phy_read(dev, B43_PHY_A_CRS) | (1 << 14)); + b43_radio_init2060(dev); + + if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) && + ((bus->boardinfo.type == SSB_BOARD_BU4306) || + (bus->boardinfo.type == SSB_BOARD_BU4309))) { + if (phy->lofcal == 0xFFFF) { + //TODO: LOF Cal + b43_radio_set_tx_iq(dev); + } else + b43_radio_write16(dev, 0x001E, phy->lofcal); + } + + b43_phy_write(dev, 0x007A, 0xF111); + + if (phy->cur_idle_tssi == 0) { + b43_radio_write16(dev, 0x0019, 0x0000); + b43_radio_write16(dev, 0x0017, 0x0020); + + tval = b43_ofdmtab_read16(dev, 0x3001, 0); + if (phy->rev == 1) { + b43_ofdmtab_write16(dev, 0x3001, 0, + (b43_ofdmtab_read16(dev, 0x3001, 0) + & 0xFF87) + | 0x0058); + } else { + b43_ofdmtab_write16(dev, 0x3001, 0, + (b43_ofdmtab_read16(dev, 0x3001, 0) + & 0xFFC3) + | 0x002C); + } + b43_dummy_transmission(dev); + phy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_A_PCTL); + b43_ofdmtab_write16(dev, 0x3001, 0, tval); + + b43_radio_set_txpower_a(dev, 0x0018); + } + b43_shm_clear_tssi(dev); +} + +static void b43_phy_initb2(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 offset, val; + + b43_write16(dev, 0x03EC, 0x3F22); + b43_phy_write(dev, 0x0020, 0x301C); + b43_phy_write(dev, 0x0026, 0x0000); + b43_phy_write(dev, 0x0030, 0x00C6); + b43_phy_write(dev, 0x0088, 0x3E00); + val = 0x3C3D; + for (offset = 0x0089; offset < 0x00A7; offset++) { + b43_phy_write(dev, offset, val); + val -= 0x0202; + } + b43_phy_write(dev, 0x03E4, 0x3000); + if (phy->channel == 0xFF) + b43_radio_selectchannel(dev, B43_DEFAULT_CHANNEL_BG, 0); + else + b43_radio_selectchannel(dev, phy->channel, 0); + if (phy->radio_ver != 0x2050) { + b43_radio_write16(dev, 0x0075, 0x0080); + b43_radio_write16(dev, 0x0079, 0x0081); + } + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x0050, 0x0023); + if (phy->radio_ver == 0x2050) { + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x005A, 0x0070); + b43_radio_write16(dev, 0x005B, 0x007B); + b43_radio_write16(dev, 0x005C, 0x00B0); + b43_radio_write16(dev, 0x007A, 0x000F); + b43_phy_write(dev, 0x0038, 0x0677); + b43_radio_init2050(dev); + } + b43_phy_write(dev, 0x0014, 0x0080); + b43_phy_write(dev, 0x0032, 0x00CA); + b43_phy_write(dev, 0x0032, 0x00CC); + b43_phy_write(dev, 0x0035, 0x07C2); + b43_lo_b_measure(dev); + b43_phy_write(dev, 0x0026, 0xCC00); + if (phy->radio_ver != 0x2050) + b43_phy_write(dev, 0x0026, 0xCE00); + b43_write16(dev, B43_MMIO_CHANNEL_EXT, 0x1000); + b43_phy_write(dev, 0x002A, 0x88A3); + if (phy->radio_ver != 0x2050) + b43_phy_write(dev, 0x002A, 0x88C2); + b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt, phy->tx_control); + b43_phy_init_pctl(dev); +} + +static void b43_phy_initb4(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 offset, val; + + b43_write16(dev, 0x03EC, 0x3F22); + b43_phy_write(dev, 0x0020, 0x301C); + b43_phy_write(dev, 0x0026, 0x0000); + b43_phy_write(dev, 0x0030, 0x00C6); + b43_phy_write(dev, 0x0088, 0x3E00); + val = 0x3C3D; + for (offset = 0x0089; offset < 0x00A7; offset++) { + b43_phy_write(dev, offset, val); + val -= 0x0202; + } + b43_phy_write(dev, 0x03E4, 0x3000); + if (phy->channel == 0xFF) + b43_radio_selectchannel(dev, B43_DEFAULT_CHANNEL_BG, 0); + else + b43_radio_selectchannel(dev, phy->channel, 0); + if (phy->radio_ver != 0x2050) { + b43_radio_write16(dev, 0x0075, 0x0080); + b43_radio_write16(dev, 0x0079, 0x0081); + } + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x0050, 0x0023); + if (phy->radio_ver == 0x2050) { + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x005A, 0x0070); + b43_radio_write16(dev, 0x005B, 0x007B); + b43_radio_write16(dev, 0x005C, 0x00B0); + b43_radio_write16(dev, 0x007A, 0x000F); + b43_phy_write(dev, 0x0038, 0x0677); + b43_radio_init2050(dev); + } + b43_phy_write(dev, 0x0014, 0x0080); + b43_phy_write(dev, 0x0032, 0x00CA); + if (phy->radio_ver == 0x2050) + b43_phy_write(dev, 0x0032, 0x00E0); + b43_phy_write(dev, 0x0035, 0x07C2); + + b43_lo_b_measure(dev); + + b43_phy_write(dev, 0x0026, 0xCC00); + if (phy->radio_ver == 0x2050) + b43_phy_write(dev, 0x0026, 0xCE00); + b43_write16(dev, B43_MMIO_CHANNEL_EXT, 0x1100); + b43_phy_write(dev, 0x002A, 0x88A3); + if (phy->radio_ver == 0x2050) + b43_phy_write(dev, 0x002A, 0x88C2); + b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt, phy->tx_control); + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_RSSI) { + b43_calc_nrssi_slope(dev); + b43_calc_nrssi_threshold(dev); + } + b43_phy_init_pctl(dev); +} + +static void b43_phy_initb5(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + u16 offset, value; + u8 old_channel; + + if (phy->analog == 1) { + b43_radio_write16(dev, 0x007A, b43_radio_read16(dev, 0x007A) + | 0x0050); + } + if ((bus->boardinfo.vendor != SSB_BOARDVENDOR_BCM) && + (bus->boardinfo.type != SSB_BOARD_BU4306)) { + value = 0x2120; + for (offset = 0x00A8; offset < 0x00C7; offset++) { + b43_phy_write(dev, offset, value); + value += 0x202; + } + } + b43_phy_write(dev, 0x0035, (b43_phy_read(dev, 0x0035) & 0xF0FF) + | 0x0700); + if (phy->radio_ver == 0x2050) + b43_phy_write(dev, 0x0038, 0x0667); + + if (phy->gmode || phy->rev >= 2) { + if (phy->radio_ver == 0x2050) { + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) + | 0x0020); + b43_radio_write16(dev, 0x0051, + b43_radio_read16(dev, 0x0051) + | 0x0004); + } + b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000); + + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x0100); + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) | 0x2000); + + b43_phy_write(dev, 0x001C, 0x186A); + + b43_phy_write(dev, 0x0013, + (b43_phy_read(dev, 0x0013) & 0x00FF) | 0x1900); + b43_phy_write(dev, 0x0035, + (b43_phy_read(dev, 0x0035) & 0xFFC0) | 0x0064); + b43_phy_write(dev, 0x005D, + (b43_phy_read(dev, 0x005D) & 0xFF80) | 0x000A); + } + + if (dev->bad_frames_preempt) { + b43_phy_write(dev, B43_PHY_RADIO_BITFIELD, + b43_phy_read(dev, + B43_PHY_RADIO_BITFIELD) | (1 << 11)); + } + + if (phy->analog == 1) { + b43_phy_write(dev, 0x0026, 0xCE00); + b43_phy_write(dev, 0x0021, 0x3763); + b43_phy_write(dev, 0x0022, 0x1BC3); + b43_phy_write(dev, 0x0023, 0x06F9); + b43_phy_write(dev, 0x0024, 0x037E); + } else + b43_phy_write(dev, 0x0026, 0xCC00); + b43_phy_write(dev, 0x0030, 0x00C6); + b43_write16(dev, 0x03EC, 0x3F22); + + if (phy->analog == 1) + b43_phy_write(dev, 0x0020, 0x3E1C); + else + b43_phy_write(dev, 0x0020, 0x301C); + + if (phy->analog == 0) + b43_write16(dev, 0x03E4, 0x3000); + + old_channel = phy->channel; + /* Force to channel 7, even if not supported. */ + b43_radio_selectchannel(dev, 7, 0); + + if (phy->radio_ver != 0x2050) { + b43_radio_write16(dev, 0x0075, 0x0080); + b43_radio_write16(dev, 0x0079, 0x0081); + } + + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x0050, 0x0023); + + if (phy->radio_ver == 0x2050) { + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x005A, 0x0070); + } + + b43_radio_write16(dev, 0x005B, 0x007B); + b43_radio_write16(dev, 0x005C, 0x00B0); + + b43_radio_write16(dev, 0x007A, b43_radio_read16(dev, 0x007A) | 0x0007); + + b43_radio_selectchannel(dev, old_channel, 0); + + b43_phy_write(dev, 0x0014, 0x0080); + b43_phy_write(dev, 0x0032, 0x00CA); + b43_phy_write(dev, 0x002A, 0x88A3); + + b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt, phy->tx_control); + + if (phy->radio_ver == 0x2050) + b43_radio_write16(dev, 0x005D, 0x000D); + + b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004); +} + +static void b43_phy_initb6(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 offset, val; + u8 old_channel; + + b43_phy_write(dev, 0x003E, 0x817A); + b43_radio_write16(dev, 0x007A, + (b43_radio_read16(dev, 0x007A) | 0x0058)); + if (phy->radio_rev == 4 || phy->radio_rev == 5) { + b43_radio_write16(dev, 0x51, 0x37); + b43_radio_write16(dev, 0x52, 0x70); + b43_radio_write16(dev, 0x53, 0xB3); + b43_radio_write16(dev, 0x54, 0x9B); + b43_radio_write16(dev, 0x5A, 0x88); + b43_radio_write16(dev, 0x5B, 0x88); + b43_radio_write16(dev, 0x5D, 0x88); + b43_radio_write16(dev, 0x5E, 0x88); + b43_radio_write16(dev, 0x7D, 0x88); + b43_hf_write(dev, b43_hf_read(dev) + | B43_HF_TSSIRPSMW); + } + B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */ + if (phy->radio_rev == 8) { + b43_radio_write16(dev, 0x51, 0); + b43_radio_write16(dev, 0x52, 0x40); + b43_radio_write16(dev, 0x53, 0xB7); + b43_radio_write16(dev, 0x54, 0x98); + b43_radio_write16(dev, 0x5A, 0x88); + b43_radio_write16(dev, 0x5B, 0x6B); + b43_radio_write16(dev, 0x5C, 0x0F); + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_ALTIQ) { + b43_radio_write16(dev, 0x5D, 0xFA); + b43_radio_write16(dev, 0x5E, 0xD8); + } else { + b43_radio_write16(dev, 0x5D, 0xF5); + b43_radio_write16(dev, 0x5E, 0xB8); + } + b43_radio_write16(dev, 0x0073, 0x0003); + b43_radio_write16(dev, 0x007D, 0x00A8); + b43_radio_write16(dev, 0x007C, 0x0001); + b43_radio_write16(dev, 0x007E, 0x0008); + } + val = 0x1E1F; + for (offset = 0x0088; offset < 0x0098; offset++) { + b43_phy_write(dev, offset, val); + val -= 0x0202; + } + val = 0x3E3F; + for (offset = 0x0098; offset < 0x00A8; offset++) { + b43_phy_write(dev, offset, val); + val -= 0x0202; + } + val = 0x2120; + for (offset = 0x00A8; offset < 0x00C8; offset++) { + b43_phy_write(dev, offset, (val & 0x3F3F)); + val += 0x0202; + } + if (phy->type == B43_PHYTYPE_G) { + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x0020); + b43_radio_write16(dev, 0x0051, + b43_radio_read16(dev, 0x0051) | 0x0004); + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x0100); + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) | 0x2000); + b43_phy_write(dev, 0x5B, 0); + b43_phy_write(dev, 0x5C, 0); + } + + old_channel = phy->channel; + if (old_channel >= 8) + b43_radio_selectchannel(dev, 1, 0); + else + b43_radio_selectchannel(dev, 13, 0); + + b43_radio_write16(dev, 0x0050, 0x0020); + b43_radio_write16(dev, 0x0050, 0x0023); + udelay(40); + if (phy->radio_rev < 6 || phy->radio_rev == 8) { + b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C) + | 0x0002)); + b43_radio_write16(dev, 0x50, 0x20); + } + if (phy->radio_rev <= 2) { + b43_radio_write16(dev, 0x7C, 0x20); + b43_radio_write16(dev, 0x5A, 0x70); + b43_radio_write16(dev, 0x5B, 0x7B); + b43_radio_write16(dev, 0x5C, 0xB0); + } + b43_radio_write16(dev, 0x007A, + (b43_radio_read16(dev, 0x007A) & 0x00F8) | 0x0007); + + b43_radio_selectchannel(dev, old_channel, 0); + + b43_phy_write(dev, 0x0014, 0x0200); + if (phy->radio_rev >= 6) + b43_phy_write(dev, 0x2A, 0x88C2); + else + b43_phy_write(dev, 0x2A, 0x8AC0); + b43_phy_write(dev, 0x0038, 0x0668); + b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt, phy->tx_control); + if (phy->radio_rev <= 5) { + b43_phy_write(dev, 0x5D, (b43_phy_read(dev, 0x5D) + & 0xFF80) | 0x0003); + } + if (phy->radio_rev <= 2) + b43_radio_write16(dev, 0x005D, 0x000D); + + if (phy->analog == 4) { + b43_write16(dev, 0x3E4, 9); + b43_phy_write(dev, 0x61, b43_phy_read(dev, 0x61) + & 0x0FFF); + } else { + b43_phy_write(dev, 0x0002, (b43_phy_read(dev, 0x0002) & 0xFFC0) + | 0x0004); + } + if (phy->type == B43_PHYTYPE_B) { + b43_write16(dev, 0x03E6, 0x8140); + b43_phy_write(dev, 0x0016, 0x0410); + b43_phy_write(dev, 0x0017, 0x0820); + b43_phy_write(dev, 0x0062, 0x0007); + b43_radio_init2050(dev); + b43_lo_g_measure(dev); + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_RSSI) { + b43_calc_nrssi_slope(dev); + b43_calc_nrssi_threshold(dev); + } + b43_phy_init_pctl(dev); + } else if (phy->type == B43_PHYTYPE_G) + b43_write16(dev, 0x03E6, 0x0); +} + +static void b43_calc_loopback_gain(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 backup_phy[16] = { 0 }; + u16 backup_radio[3]; + u16 backup_bband; + u16 i, j, loop_i_max; + u16 trsw_rx; + u16 loop1_outer_done, loop1_inner_done; + + backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0); + backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG); + backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER); + backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL); + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER); + backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); + } + backup_phy[6] = b43_phy_read(dev, B43_PHY_BASE(0x5A)); + backup_phy[7] = b43_phy_read(dev, B43_PHY_BASE(0x59)); + backup_phy[8] = b43_phy_read(dev, B43_PHY_BASE(0x58)); + backup_phy[9] = b43_phy_read(dev, B43_PHY_BASE(0x0A)); + backup_phy[10] = b43_phy_read(dev, B43_PHY_BASE(0x03)); + backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK); + backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL); + backup_phy[13] = b43_phy_read(dev, B43_PHY_BASE(0x2B)); + backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL); + backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE); + backup_bband = phy->bbatt.att; + backup_radio[0] = b43_radio_read16(dev, 0x52); + backup_radio[1] = b43_radio_read16(dev, 0x43); + backup_radio[2] = b43_radio_read16(dev, 0x7A); + + b43_phy_write(dev, B43_PHY_CRS0, + b43_phy_read(dev, B43_PHY_CRS0) & 0x3FFF); + b43_phy_write(dev, B43_PHY_CCKBBANDCFG, + b43_phy_read(dev, B43_PHY_CCKBBANDCFG) | 0x8000); + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) | 0x0002); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) & 0xFFFD); + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) | 0x0001); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) & 0xFFFE); + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, B43_PHY_ANALOGOVER, + b43_phy_read(dev, B43_PHY_ANALOGOVER) | 0x0001); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + b43_phy_read(dev, + B43_PHY_ANALOGOVERVAL) & 0xFFFE); + b43_phy_write(dev, B43_PHY_ANALOGOVER, + b43_phy_read(dev, B43_PHY_ANALOGOVER) | 0x0002); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + b43_phy_read(dev, + B43_PHY_ANALOGOVERVAL) & 0xFFFD); + } + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) | 0x000C); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) | 0x000C); + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) | 0x0030); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + (b43_phy_read(dev, B43_PHY_RFOVERVAL) + & 0xFFCF) | 0x10); + + b43_phy_write(dev, B43_PHY_BASE(0x5A), 0x0780); + b43_phy_write(dev, B43_PHY_BASE(0x59), 0xC810); + b43_phy_write(dev, B43_PHY_BASE(0x58), 0x000D); + + b43_phy_write(dev, B43_PHY_BASE(0x0A), + b43_phy_read(dev, B43_PHY_BASE(0x0A)) | 0x2000); + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, B43_PHY_ANALOGOVER, + b43_phy_read(dev, B43_PHY_ANALOGOVER) | 0x0004); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + b43_phy_read(dev, + B43_PHY_ANALOGOVERVAL) & 0xFFFB); + } + b43_phy_write(dev, B43_PHY_BASE(0x03), + (b43_phy_read(dev, B43_PHY_BASE(0x03)) + & 0xFF9F) | 0x40); + + if (phy->radio_rev == 8) { + b43_radio_write16(dev, 0x43, 0x000F); + } else { + b43_radio_write16(dev, 0x52, 0); + b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43) + & 0xFFF0) | 0x9); + } + b43_phy_set_baseband_attenuation(dev, 11); + + if (phy->rev >= 3) + b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020); + else + b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020); + b43_phy_write(dev, B43_PHY_LO_CTL, 0); + + b43_phy_write(dev, B43_PHY_BASE(0x2B), + (b43_phy_read(dev, B43_PHY_BASE(0x2B)) + & 0xFFC0) | 0x01); + b43_phy_write(dev, B43_PHY_BASE(0x2B), + (b43_phy_read(dev, B43_PHY_BASE(0x2B)) + & 0xC0FF) | 0x800); + + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) | 0x0100); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) & 0xCFFF); + + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_EXTLNA) { + if (phy->rev >= 7) { + b43_phy_write(dev, B43_PHY_RFOVER, + b43_phy_read(dev, B43_PHY_RFOVER) + | 0x0800); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) + | 0x8000); + } + } + b43_radio_write16(dev, 0x7A, b43_radio_read16(dev, 0x7A) + & 0x00F7); + + j = 0; + loop_i_max = (phy->radio_rev == 8) ? 15 : 9; + for (i = 0; i < loop_i_max; i++) { + for (j = 0; j < 16; j++) { + b43_radio_write16(dev, 0x43, i); + b43_phy_write(dev, B43_PHY_RFOVERVAL, + (b43_phy_read(dev, B43_PHY_RFOVERVAL) + & 0xF0FF) | (j << 8)); + b43_phy_write(dev, B43_PHY_PGACTL, + (b43_phy_read(dev, B43_PHY_PGACTL) + & 0x0FFF) | 0xA000); + b43_phy_write(dev, B43_PHY_PGACTL, + b43_phy_read(dev, B43_PHY_PGACTL) + | 0xF000); + udelay(20); + if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC) + goto exit_loop1; + } + } + exit_loop1: + loop1_outer_done = i; + loop1_inner_done = j; + if (j >= 8) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + b43_phy_read(dev, B43_PHY_RFOVERVAL) + | 0x30); + trsw_rx = 0x1B; + for (j = j - 8; j < 16; j++) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + (b43_phy_read(dev, B43_PHY_RFOVERVAL) + & 0xF0FF) | (j << 8)); + b43_phy_write(dev, B43_PHY_PGACTL, + (b43_phy_read(dev, B43_PHY_PGACTL) + & 0x0FFF) | 0xA000); + b43_phy_write(dev, B43_PHY_PGACTL, + b43_phy_read(dev, B43_PHY_PGACTL) + | 0xF000); + udelay(20); + trsw_rx -= 3; + if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC) + goto exit_loop2; + } + } else + trsw_rx = 0x18; + exit_loop2: + + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]); + } + b43_phy_write(dev, B43_PHY_BASE(0x5A), backup_phy[6]); + b43_phy_write(dev, B43_PHY_BASE(0x59), backup_phy[7]); + b43_phy_write(dev, B43_PHY_BASE(0x58), backup_phy[8]); + b43_phy_write(dev, B43_PHY_BASE(0x0A), backup_phy[9]); + b43_phy_write(dev, B43_PHY_BASE(0x03), backup_phy[10]); + b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]); + b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]); + b43_phy_write(dev, B43_PHY_BASE(0x2B), backup_phy[13]); + b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]); + + b43_phy_set_baseband_attenuation(dev, backup_bband); + + b43_radio_write16(dev, 0x52, backup_radio[0]); + b43_radio_write16(dev, 0x43, backup_radio[1]); + b43_radio_write16(dev, 0x7A, backup_radio[2]); + + b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003); + udelay(10); + b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]); + b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]); + b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]); + b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]); + + phy->max_lb_gain = + ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11; + phy->trsw_rx_gain = trsw_rx * 2; +} + +static void b43_phy_initg(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 tmp; + + if (phy->rev == 1) + b43_phy_initb5(dev); + else + b43_phy_initb6(dev); + + if (phy->rev >= 2 || phy->gmode) + b43_phy_inita(dev); + + if (phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_ANALOGOVER, 0); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0); + } + if (phy->rev == 2) { + b43_phy_write(dev, B43_PHY_RFOVER, 0); + b43_phy_write(dev, B43_PHY_PGACTL, 0xC0); + } + if (phy->rev > 5) { + b43_phy_write(dev, B43_PHY_RFOVER, 0x400); + b43_phy_write(dev, B43_PHY_PGACTL, 0xC0); + } + if (phy->gmode || phy->rev >= 2) { + tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM); + tmp &= B43_PHYVER_VERSION; + if (tmp == 3 || tmp == 5) { + b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816); + b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006); + } + if (tmp == 5) { + b43_phy_write(dev, B43_PHY_OFDM(0xCC), + (b43_phy_read(dev, B43_PHY_OFDM(0xCC)) + & 0x00FF) | 0x1F00); + } + } + if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2) + b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78); + if (phy->radio_rev == 8) { + b43_phy_write(dev, B43_PHY_EXTG(0x01), + b43_phy_read(dev, B43_PHY_EXTG(0x01)) + | 0x80); + b43_phy_write(dev, B43_PHY_OFDM(0x3E), + b43_phy_read(dev, B43_PHY_OFDM(0x3E)) + | 0x4); + } + if (has_loopback_gain(phy)) + b43_calc_loopback_gain(dev); + + if (phy->radio_rev != 8) { + if (phy->initval == 0xFFFF) + phy->initval = b43_radio_init2050(dev); + else + b43_radio_write16(dev, 0x0078, phy->initval); + } + if (phy->lo_control->tx_bias == 0xFF) { + b43_lo_g_measure(dev); + } else { + if (has_tx_magnification(phy)) { + b43_radio_write16(dev, 0x52, + (b43_radio_read16(dev, 0x52) & 0xFF00) + | phy->lo_control->tx_bias | phy-> + lo_control->tx_magn); + } else { + b43_radio_write16(dev, 0x52, + (b43_radio_read16(dev, 0x52) & 0xFFF0) + | phy->lo_control->tx_bias); + } + if (phy->rev >= 6) { + b43_phy_write(dev, B43_PHY_BASE(0x36), + (b43_phy_read(dev, B43_PHY_BASE(0x36)) + & 0x0FFF) | (phy->lo_control-> + tx_bias << 12)); + } + if (dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_PACTRL) + b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x8075); + else + b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x807F); + if (phy->rev < 2) + b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x101); + else + b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x202); + } + if (phy->gmode || phy->rev >= 2) { + b43_lo_g_adjust(dev); + b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078); + } + + if (!(dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_RSSI)) { + /* The specs state to update the NRSSI LT with + * the value 0x7FFFFFFF here. I think that is some weird + * compiler optimization in the original driver. + * Essentially, what we do here is resetting all NRSSI LT + * entries to -32 (see the limit_value() in nrssi_hw_update()) + */ + b43_nrssi_hw_update(dev, 0xFFFF); //FIXME? + b43_calc_nrssi_threshold(dev); + } else if (phy->gmode || phy->rev >= 2) { + if (phy->nrssi[0] == -1000) { + B43_WARN_ON(phy->nrssi[1] != -1000); + b43_calc_nrssi_slope(dev); + } else + b43_calc_nrssi_threshold(dev); + } + if (phy->radio_rev == 8) + b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230); + b43_phy_init_pctl(dev); + /* FIXME: The spec says in the following if, the 0 should be replaced + 'if OFDM may not be used in the current locale' + but OFDM is legal everywhere */ + if ((dev->dev->bus->chip_id == 0x4306 + && dev->dev->bus->chip_package == 2) || 0) { + b43_phy_write(dev, B43_PHY_CRS0, b43_phy_read(dev, B43_PHY_CRS0) + & 0xBFFF); + b43_phy_write(dev, B43_PHY_OFDM(0xC3), + b43_phy_read(dev, B43_PHY_OFDM(0xC3)) + & 0x7FFF); + } +} + +/* Set the baseband attenuation value on chip. */ +void b43_phy_set_baseband_attenuation(struct b43_wldev *dev, + u16 baseband_attenuation) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->analog == 0) { + b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0) + & 0xFFF0) | + baseband_attenuation); + } else if (phy->analog > 1) { + b43_phy_write(dev, B43_PHY_DACCTL, + (b43_phy_read(dev, B43_PHY_DACCTL) + & 0xFFC3) | (baseband_attenuation << 2)); + } else { + b43_phy_write(dev, B43_PHY_DACCTL, + (b43_phy_read(dev, B43_PHY_DACCTL) + & 0xFF87) | (baseband_attenuation << 3)); + } +} + +/* http://bcm-specs.sipsolutions.net/EstimatePowerOut + * This function converts a TSSI value to dBm in Q5.2 + */ +static s8 b43_phy_estimate_power_out(struct b43_wldev *dev, s8 tssi) +{ + struct b43_phy *phy = &dev->phy; + s8 dbm = 0; + s32 tmp; + + tmp = (phy->tgt_idle_tssi - phy->cur_idle_tssi + tssi); + + switch (phy->type) { + case B43_PHYTYPE_A: + tmp += 0x80; + tmp = limit_value(tmp, 0x00, 0xFF); + dbm = phy->tssi2dbm[tmp]; + //TODO: There's a FIXME on the specs + break; + case B43_PHYTYPE_B: + case B43_PHYTYPE_G: + tmp = limit_value(tmp, 0x00, 0x3F); + dbm = phy->tssi2dbm[tmp]; + break; + default: + B43_WARN_ON(1); + } + + return dbm; +} + +void b43_put_attenuation_into_ranges(struct b43_wldev *dev, + int *_bbatt, int *_rfatt) +{ + int rfatt = *_rfatt; + int bbatt = *_bbatt; + struct b43_txpower_lo_control *lo = dev->phy.lo_control; + + /* Get baseband and radio attenuation values into their permitted ranges. + * Radio attenuation affects power level 4 times as much as baseband. */ + + /* Range constants */ + const int rf_min = lo->rfatt_list.min_val; + const int rf_max = lo->rfatt_list.max_val; + const int bb_min = lo->bbatt_list.min_val; + const int bb_max = lo->bbatt_list.max_val; + + while (1) { + if (rfatt > rf_max && bbatt > bb_max - 4) + break; /* Can not get it into ranges */ + if (rfatt < rf_min && bbatt < bb_min + 4) + break; /* Can not get it into ranges */ + if (bbatt > bb_max && rfatt > rf_max - 1) + break; /* Can not get it into ranges */ + if (bbatt < bb_min && rfatt < rf_min + 1) + break; /* Can not get it into ranges */ + + if (bbatt > bb_max) { + bbatt -= 4; + rfatt += 1; + continue; + } + if (bbatt < bb_min) { + bbatt += 4; + rfatt -= 1; + continue; + } + if (rfatt > rf_max) { + rfatt -= 1; + bbatt += 4; + continue; + } + if (rfatt < rf_min) { + rfatt += 1; + bbatt -= 4; + continue; + } + break; + } + + *_rfatt = limit_value(rfatt, rf_min, rf_max); + *_bbatt = limit_value(bbatt, bb_min, bb_max); +} + +/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */ +void b43_phy_xmitpower(struct b43_wldev *dev) +{ + struct ssb_bus *bus = dev->dev->bus; + struct b43_phy *phy = &dev->phy; + + if (phy->cur_idle_tssi == 0) + return; + if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) && + (bus->boardinfo.type == SSB_BOARD_BU4306)) + return; +#ifdef CONFIG_B43_DEBUG + if (phy->manual_txpower_control) + return; +#endif + + switch (phy->type) { + case B43_PHYTYPE_A:{ + + //TODO: Nothing for A PHYs yet :-/ + + break; + } + case B43_PHYTYPE_B: + case B43_PHYTYPE_G:{ + u16 tmp; + s8 v0, v1, v2, v3; + s8 average; + int max_pwr; + int desired_pwr, estimated_pwr, pwr_adjust; + int rfatt_delta, bbatt_delta; + int rfatt, bbatt; + u8 tx_control; + unsigned long phylock_flags; + + tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0058); + v0 = (s8) (tmp & 0x00FF); + v1 = (s8) ((tmp & 0xFF00) >> 8); + tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x005A); + v2 = (s8) (tmp & 0x00FF); + v3 = (s8) ((tmp & 0xFF00) >> 8); + tmp = 0; + + if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F + || v3 == 0x7F) { + tmp = + b43_shm_read16(dev, B43_SHM_SHARED, 0x0070); + v0 = (s8) (tmp & 0x00FF); + v1 = (s8) ((tmp & 0xFF00) >> 8); + tmp = + b43_shm_read16(dev, B43_SHM_SHARED, 0x0072); + v2 = (s8) (tmp & 0x00FF); + v3 = (s8) ((tmp & 0xFF00) >> 8); + if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F + || v3 == 0x7F) + return; + v0 = (v0 + 0x20) & 0x3F; + v1 = (v1 + 0x20) & 0x3F; + v2 = (v2 + 0x20) & 0x3F; + v3 = (v3 + 0x20) & 0x3F; + tmp = 1; + } + b43_shm_clear_tssi(dev); + + average = (v0 + v1 + v2 + v3 + 2) / 4; + + if (tmp + && (b43_shm_read16(dev, B43_SHM_SHARED, 0x005E) & + 0x8)) + average -= 13; + + estimated_pwr = + b43_phy_estimate_power_out(dev, average); + + max_pwr = dev->dev->bus->sprom.r1.maxpwr_bg; + if ((dev->dev->bus->sprom.r1. + boardflags_lo & B43_BFL_PACTRL) + && (phy->type == B43_PHYTYPE_G)) + max_pwr -= 0x3; + if (unlikely(max_pwr <= 0)) { + b43warn(dev->wl, + "Invalid max-TX-power value in SPROM.\n"); + max_pwr = 60; /* fake it */ + dev->dev->bus->sprom.r1.maxpwr_bg = max_pwr; + } + + /*TODO: + max_pwr = min(REG - dev->dev->bus->sprom.antennagain_bgphy - 0x6, max_pwr) + where REG is the max power as per the regulatory domain + */ + + /* Get desired power (in Q5.2) */ + desired_pwr = INT_TO_Q52(phy->power_level); + /* And limit it. max_pwr already is Q5.2 */ + desired_pwr = limit_value(desired_pwr, 0, max_pwr); + if (b43_debug(dev, B43_DBG_XMITPOWER)) { + b43dbg(dev->wl, + "Current TX power output: " Q52_FMT + " dBm, " "Desired TX power output: " + Q52_FMT " dBm\n", Q52_ARG(estimated_pwr), + Q52_ARG(desired_pwr)); + } + + /* Calculate the adjustment delta. */ + pwr_adjust = desired_pwr - estimated_pwr; + + /* RF attenuation delta. */ + rfatt_delta = ((pwr_adjust + 7) / 8); + /* Lower attenuation => Bigger power output. Negate it. */ + rfatt_delta = -rfatt_delta; + + /* Baseband attenuation delta. */ + bbatt_delta = pwr_adjust / 2; + /* Lower attenuation => Bigger power output. Negate it. */ + bbatt_delta = -bbatt_delta; + /* RF att affects power level 4 times as much as + * Baseband attennuation. Subtract it. */ + bbatt_delta -= 4 * rfatt_delta; + + /* So do we finally need to adjust something? */ + if ((rfatt_delta == 0) && (bbatt_delta == 0)) { + b43_lo_g_ctl_mark_cur_used(dev); + return; + } + + /* Calculate the new attenuation values. */ + bbatt = phy->bbatt.att; + bbatt += bbatt_delta; + rfatt = phy->rfatt.att; + rfatt += rfatt_delta; + + b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); + tx_control = phy->tx_control; + if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) { + if (rfatt <= 1) { + if (tx_control == 0) { + tx_control = + B43_TXCTL_PA2DB | + B43_TXCTL_TXMIX; + rfatt += 2; + bbatt += 2; + } else if (dev->dev->bus->sprom.r1. + boardflags_lo & + B43_BFL_PACTRL) { + bbatt += 4 * (rfatt - 2); + rfatt = 2; + } + } else if (rfatt > 4 && tx_control) { + tx_control = 0; + if (bbatt < 3) { + rfatt -= 3; + bbatt += 2; + } else { + rfatt -= 2; + bbatt -= 2; + } + } + } + /* Save the control values */ + phy->tx_control = tx_control; + b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt); + phy->rfatt.att = rfatt; + phy->bbatt.att = bbatt; + + /* Adjust the hardware */ + b43_phy_lock(dev, phylock_flags); + b43_radio_lock(dev); + b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt, + phy->tx_control); + b43_lo_g_ctl_mark_cur_used(dev); + b43_radio_unlock(dev); + b43_phy_unlock(dev, phylock_flags); + break; + } + default: + B43_WARN_ON(1); + } +} + +static inline s32 b43_tssi2dbm_ad(s32 num, s32 den) +{ + if (num < 0) + return num / den; + else + return (num + den / 2) / den; +} + +static inline + s8 b43_tssi2dbm_entry(s8 entry[], u8 index, s16 pab0, s16 pab1, s16 pab2) +{ + s32 m1, m2, f = 256, q, delta; + s8 i = 0; + + m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32); + m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1); + do { + if (i > 15) + return -EINVAL; + q = b43_tssi2dbm_ad(f * 4096 - + b43_tssi2dbm_ad(m2 * f, 16) * f, 2048); + delta = abs(q - f); + f = q; + i++; + } while (delta >= 2); + entry[index] = limit_value(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128); + return 0; +} + +/* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */ +int b43_phy_init_tssi2dbm_table(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + s16 pab0, pab1, pab2; + u8 idx; + s8 *dyn_tssi2dbm; + + if (phy->type == B43_PHYTYPE_A) { + pab0 = (s16) (dev->dev->bus->sprom.r1.pa1b0); + pab1 = (s16) (dev->dev->bus->sprom.r1.pa1b1); + pab2 = (s16) (dev->dev->bus->sprom.r1.pa1b2); + } else { + pab0 = (s16) (dev->dev->bus->sprom.r1.pa0b0); + pab1 = (s16) (dev->dev->bus->sprom.r1.pa0b1); + pab2 = (s16) (dev->dev->bus->sprom.r1.pa0b2); + } + + if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) { + phy->tgt_idle_tssi = 0x34; + phy->tssi2dbm = b43_tssi2dbm_b_table; + return 0; + } + + if (pab0 != 0 && pab1 != 0 && pab2 != 0 && + pab0 != -1 && pab1 != -1 && pab2 != -1) { + /* The pabX values are set in SPROM. Use them. */ + if (phy->type == B43_PHYTYPE_A) { + if ((s8) dev->dev->bus->sprom.r1.itssi_a != 0 && + (s8) dev->dev->bus->sprom.r1.itssi_a != -1) + phy->tgt_idle_tssi = + (s8) (dev->dev->bus->sprom.r1.itssi_a); + else + phy->tgt_idle_tssi = 62; + } else { + if ((s8) dev->dev->bus->sprom.r1.itssi_bg != 0 && + (s8) dev->dev->bus->sprom.r1.itssi_bg != -1) + phy->tgt_idle_tssi = + (s8) (dev->dev->bus->sprom.r1.itssi_bg); + else + phy->tgt_idle_tssi = 62; + } + dyn_tssi2dbm = kmalloc(64, GFP_KERNEL); + if (dyn_tssi2dbm == NULL) { + b43err(dev->wl, "Could not allocate memory" + "for tssi2dbm table\n"); + return -ENOMEM; + } + for (idx = 0; idx < 64; idx++) + if (b43_tssi2dbm_entry + (dyn_tssi2dbm, idx, pab0, pab1, pab2)) { + phy->tssi2dbm = NULL; + b43err(dev->wl, "Could not generate " + "tssi2dBm table\n"); + kfree(dyn_tssi2dbm); + return -ENODEV; + } + phy->tssi2dbm = dyn_tssi2dbm; + phy->dyn_tssi_tbl = 1; + } else { + /* pabX values not set in SPROM. */ + switch (phy->type) { + case B43_PHYTYPE_A: + /* APHY needs a generated table. */ + phy->tssi2dbm = NULL; + b43err(dev->wl, "Could not generate tssi2dBm " + "table (wrong SPROM info)!\n"); + return -ENODEV; + case B43_PHYTYPE_B: + phy->tgt_idle_tssi = 0x34; + phy->tssi2dbm = b43_tssi2dbm_b_table; + break; + case B43_PHYTYPE_G: + phy->tgt_idle_tssi = 0x34; + phy->tssi2dbm = b43_tssi2dbm_g_table; + break; + } + } + + return 0; +} + +int b43_phy_init(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + int err = -ENODEV; + + switch (phy->type) { + case B43_PHYTYPE_A: + if (phy->rev == 2 || phy->rev == 3) { + b43_phy_inita(dev); + err = 0; + } + break; + case B43_PHYTYPE_B: + switch (phy->rev) { + case 2: + b43_phy_initb2(dev); + err = 0; + break; + case 4: + b43_phy_initb4(dev); + err = 0; + break; + case 5: + b43_phy_initb5(dev); + err = 0; + break; + case 6: + b43_phy_initb6(dev); + err = 0; + break; + } + break; + case B43_PHYTYPE_G: + b43_phy_initg(dev); + err = 0; + break; + } + if (err) + b43err(dev->wl, "Unknown PHYTYPE found\n"); + + return err; +} + +void b43_set_rx_antenna(struct b43_wldev *dev, int antenna) +{ + struct b43_phy *phy = &dev->phy; + u32 hf; + u16 tmp; + int autodiv = 0; + + if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1) + autodiv = 1; + + hf = b43_hf_read(dev); + hf &= ~B43_HF_ANTDIVHELP; + b43_hf_write(dev, hf); + + switch (phy->type) { + case B43_PHYTYPE_A: + case B43_PHYTYPE_G: + tmp = b43_phy_read(dev, B43_PHY_BBANDCFG); + tmp &= ~B43_PHY_BBANDCFG_RXANT; + tmp |= (autodiv ? B43_ANTENNA_AUTO0 : antenna) + << B43_PHY_BBANDCFG_RXANT_SHIFT; + b43_phy_write(dev, B43_PHY_BBANDCFG, tmp); + + if (autodiv) { + tmp = b43_phy_read(dev, B43_PHY_ANTDWELL); + if (antenna == B43_ANTENNA_AUTO0) + tmp &= ~B43_PHY_ANTDWELL_AUTODIV1; + else + tmp |= B43_PHY_ANTDWELL_AUTODIV1; + b43_phy_write(dev, B43_PHY_ANTDWELL, tmp); + } + if (phy->type == B43_PHYTYPE_G) { + tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT); + if (autodiv) + tmp |= B43_PHY_ANTWRSETT_ARXDIV; + else + tmp &= ~B43_PHY_ANTWRSETT_ARXDIV; + b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp); + if (phy->rev >= 2) { + tmp = b43_phy_read(dev, B43_PHY_OFDM61); + tmp |= B43_PHY_OFDM61_10; + b43_phy_write(dev, B43_PHY_OFDM61, tmp); + + tmp = + b43_phy_read(dev, B43_PHY_DIVSRCHGAINBACK); + tmp = (tmp & 0xFF00) | 0x15; + b43_phy_write(dev, B43_PHY_DIVSRCHGAINBACK, + tmp); + + if (phy->rev == 2) { + b43_phy_write(dev, B43_PHY_ADIVRELATED, + 8); + } else { + tmp = + b43_phy_read(dev, + B43_PHY_ADIVRELATED); + tmp = (tmp & 0xFF00) | 8; + b43_phy_write(dev, B43_PHY_ADIVRELATED, + tmp); + } + } + if (phy->rev >= 6) + b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC); + } else { + if (phy->rev < 3) { + tmp = b43_phy_read(dev, B43_PHY_ANTDWELL); + tmp = (tmp & 0xFF00) | 0x24; + b43_phy_write(dev, B43_PHY_ANTDWELL, tmp); + } else { + tmp = b43_phy_read(dev, B43_PHY_OFDM61); + tmp |= 0x10; + b43_phy_write(dev, B43_PHY_OFDM61, tmp); + if (phy->analog == 3) { + b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT, + 0x1D); + b43_phy_write(dev, B43_PHY_ADIVRELATED, + 8); + } else { + b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT, + 0x3A); + tmp = + b43_phy_read(dev, + B43_PHY_ADIVRELATED); + tmp = (tmp & 0xFF00) | 8; + b43_phy_write(dev, B43_PHY_ADIVRELATED, + tmp); + } + } + } + break; + case B43_PHYTYPE_B: + tmp = b43_phy_read(dev, B43_PHY_CCKBBANDCFG); + tmp &= ~B43_PHY_BBANDCFG_RXANT; + tmp |= (autodiv ? B43_ANTENNA_AUTO0 : antenna) + << B43_PHY_BBANDCFG_RXANT_SHIFT; + b43_phy_write(dev, B43_PHY_CCKBBANDCFG, tmp); + break; + default: + B43_WARN_ON(1); + } + + hf |= B43_HF_ANTDIVHELP; + b43_hf_write(dev, hf); +} + +/* Get the freq, as it has to be written to the device. */ +static inline u16 channel2freq_bg(u8 channel) +{ + B43_WARN_ON(!(channel >= 1 && channel <= 14)); + + return b43_radio_channel_codes_bg[channel - 1]; +} + +/* Get the freq, as it has to be written to the device. */ +static inline u16 channel2freq_a(u8 channel) +{ + B43_WARN_ON(channel > 200); + + return (5000 + 5 * channel); +} + +void b43_radio_lock(struct b43_wldev *dev) +{ + u32 macctl; + + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl |= B43_MACCTL_RADIOLOCK; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Commit the write and wait for the device + * to exit any radio register access. */ + b43_read32(dev, B43_MMIO_MACCTL); + udelay(10); +} + +void b43_radio_unlock(struct b43_wldev *dev) +{ + u32 macctl; + + /* Commit any write */ + b43_read16(dev, B43_MMIO_PHY_VER); + /* unlock */ + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_RADIOLOCK; + b43_write32(dev, B43_MMIO_MACCTL, macctl); +} + +u16 b43_radio_read16(struct b43_wldev *dev, u16 offset) +{ + struct b43_phy *phy = &dev->phy; + + switch (phy->type) { + case B43_PHYTYPE_A: + offset |= 0x0040; + break; + case B43_PHYTYPE_B: + if (phy->radio_ver == 0x2053) { + if (offset < 0x70) + offset += 0x80; + else if (offset < 0x80) + offset += 0x70; + } else if (phy->radio_ver == 0x2050) { + offset |= 0x80; + } else + B43_WARN_ON(1); + break; + case B43_PHYTYPE_G: + offset |= 0x80; + break; + } + + b43_write16(dev, B43_MMIO_RADIO_CONTROL, offset); + return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); +} + +void b43_radio_write16(struct b43_wldev *dev, u16 offset, u16 val) +{ + b43_write16(dev, B43_MMIO_RADIO_CONTROL, offset); + mmiowb(); + b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, val); +} + +static void b43_set_all_gains(struct b43_wldev *dev, + s16 first, s16 second, s16 third) +{ + struct b43_phy *phy = &dev->phy; + u16 i; + u16 start = 0x08, end = 0x18; + u16 tmp; + u16 table; + + if (phy->rev <= 1) { + start = 0x10; + end = 0x20; + } + + table = B43_OFDMTAB_GAINX; + if (phy->rev <= 1) + table = B43_OFDMTAB_GAINX_R1; + for (i = 0; i < 4; i++) + b43_ofdmtab_write16(dev, table, i, first); + + for (i = start; i < end; i++) + b43_ofdmtab_write16(dev, table, i, second); + + if (third != -1) { + tmp = ((u16) third << 14) | ((u16) third << 6); + b43_phy_write(dev, 0x04A0, + (b43_phy_read(dev, 0x04A0) & 0xBFBF) | tmp); + b43_phy_write(dev, 0x04A1, + (b43_phy_read(dev, 0x04A1) & 0xBFBF) | tmp); + b43_phy_write(dev, 0x04A2, + (b43_phy_read(dev, 0x04A2) & 0xBFBF) | tmp); + } + b43_dummy_transmission(dev); +} + +static void b43_set_original_gains(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 i, tmp; + u16 table; + u16 start = 0x0008, end = 0x0018; + + if (phy->rev <= 1) { + start = 0x0010; + end = 0x0020; + } + + table = B43_OFDMTAB_GAINX; + if (phy->rev <= 1) + table = B43_OFDMTAB_GAINX_R1; + for (i = 0; i < 4; i++) { + tmp = (i & 0xFFFC); + tmp |= (i & 0x0001) << 1; + tmp |= (i & 0x0002) >> 1; + + b43_ofdmtab_write16(dev, table, i, tmp); + } + + for (i = start; i < end; i++) + b43_ofdmtab_write16(dev, table, i, i - start); + + b43_phy_write(dev, 0x04A0, + (b43_phy_read(dev, 0x04A0) & 0xBFBF) | 0x4040); + b43_phy_write(dev, 0x04A1, + (b43_phy_read(dev, 0x04A1) & 0xBFBF) | 0x4040); + b43_phy_write(dev, 0x04A2, + (b43_phy_read(dev, 0x04A2) & 0xBFBF) | 0x4000); + b43_dummy_transmission(dev); +} + +/* Synthetic PU workaround */ +static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel) +{ + struct b43_phy *phy = &dev->phy; + + might_sleep(); + + if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) { + /* We do not need the workaround. */ + return; + } + + if (channel <= 10) { + b43_write16(dev, B43_MMIO_CHANNEL, + channel2freq_bg(channel + 4)); + } else { + b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1)); + } + msleep(1); + b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel)); +} + +u8 b43_radio_aci_detect(struct b43_wldev *dev, u8 channel) +{ + struct b43_phy *phy = &dev->phy; + u8 ret = 0; + u16 saved, rssi, temp; + int i, j = 0; + + saved = b43_phy_read(dev, 0x0403); + b43_radio_selectchannel(dev, channel, 0); + b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5); + if (phy->aci_hw_rssi) + rssi = b43_phy_read(dev, 0x048A) & 0x3F; + else + rssi = saved & 0x3F; + /* clamp temp to signed 5bit */ + if (rssi > 32) + rssi -= 64; + for (i = 0; i < 100; i++) { + temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F; + if (temp > 32) + temp -= 64; + if (temp < rssi) + j++; + if (j >= 20) + ret = 1; + } + b43_phy_write(dev, 0x0403, saved); + + return ret; +} + +u8 b43_radio_aci_scan(struct b43_wldev * dev) +{ + struct b43_phy *phy = &dev->phy; + u8 ret[13]; + unsigned int channel = phy->channel; + unsigned int i, j, start, end; + unsigned long phylock_flags; + + if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0))) + return 0; + + b43_phy_lock(dev, phylock_flags); + b43_radio_lock(dev); + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) & 0xFFFC); + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, B43_PHY_G_CRS) & 0x7FFF); + b43_set_all_gains(dev, 3, 8, 1); + + start = (channel - 5 > 0) ? channel - 5 : 1; + end = (channel + 5 < 14) ? channel + 5 : 13; + + for (i = start; i <= end; i++) { + if (abs(channel - i) > 2) + ret[i - 1] = b43_radio_aci_detect(dev, i); + } + b43_radio_selectchannel(dev, channel, 0); + b43_phy_write(dev, 0x0802, + (b43_phy_read(dev, 0x0802) & 0xFFFC) | 0x0003); + b43_phy_write(dev, 0x0403, b43_phy_read(dev, 0x0403) & 0xFFF8); + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, B43_PHY_G_CRS) | 0x8000); + b43_set_original_gains(dev); + for (i = 0; i < 13; i++) { + if (!ret[i]) + continue; + end = (i + 5 < 13) ? i + 5 : 13; + for (j = i; j < end; j++) + ret[j] = 1; + } + b43_radio_unlock(dev); + b43_phy_unlock(dev, phylock_flags); + + return ret[channel - 1]; +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val) +{ + b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset); + mmiowb(); + b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val); +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset) +{ + u16 val; + + b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset); + val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA); + + return (s16) val; +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val) +{ + u16 i; + s16 tmp; + + for (i = 0; i < 64; i++) { + tmp = b43_nrssi_hw_read(dev, i); + tmp -= val; + tmp = limit_value(tmp, -32, 31); + b43_nrssi_hw_write(dev, i, tmp); + } +} + +/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */ +void b43_nrssi_mem_update(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + s16 i, delta; + s32 tmp; + + delta = 0x1F - phy->nrssi[0]; + for (i = 0; i < 64; i++) { + tmp = (i - delta) * phy->nrssislope; + tmp /= 0x10000; + tmp += 0x3A; + tmp = limit_value(tmp, 0, 0x3F); + phy->nrssi_lt[i] = tmp; + } +} + +static void b43_calc_nrssi_offset(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 backup[20] = { 0 }; + s16 v47F; + u16 i; + u16 saved = 0xFFFF; + + backup[0] = b43_phy_read(dev, 0x0001); + backup[1] = b43_phy_read(dev, 0x0811); + backup[2] = b43_phy_read(dev, 0x0812); + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + backup[3] = b43_phy_read(dev, 0x0814); + backup[4] = b43_phy_read(dev, 0x0815); + } + backup[5] = b43_phy_read(dev, 0x005A); + backup[6] = b43_phy_read(dev, 0x0059); + backup[7] = b43_phy_read(dev, 0x0058); + backup[8] = b43_phy_read(dev, 0x000A); + backup[9] = b43_phy_read(dev, 0x0003); + backup[10] = b43_radio_read16(dev, 0x007A); + backup[11] = b43_radio_read16(dev, 0x0043); + + b43_phy_write(dev, 0x0429, b43_phy_read(dev, 0x0429) & 0x7FFF); + b43_phy_write(dev, 0x0001, + (b43_phy_read(dev, 0x0001) & 0x3FFF) | 0x4000); + b43_phy_write(dev, 0x0811, b43_phy_read(dev, 0x0811) | 0x000C); + b43_phy_write(dev, 0x0812, + (b43_phy_read(dev, 0x0812) & 0xFFF3) | 0x0004); + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) & ~(0x1 | 0x2)); + if (phy->rev >= 6) { + backup[12] = b43_phy_read(dev, 0x002E); + backup[13] = b43_phy_read(dev, 0x002F); + backup[14] = b43_phy_read(dev, 0x080F); + backup[15] = b43_phy_read(dev, 0x0810); + backup[16] = b43_phy_read(dev, 0x0801); + backup[17] = b43_phy_read(dev, 0x0060); + backup[18] = b43_phy_read(dev, 0x0014); + backup[19] = b43_phy_read(dev, 0x0478); + + b43_phy_write(dev, 0x002E, 0); + b43_phy_write(dev, 0x002F, 0); + b43_phy_write(dev, 0x080F, 0); + b43_phy_write(dev, 0x0810, 0); + b43_phy_write(dev, 0x0478, b43_phy_read(dev, 0x0478) | 0x0100); + b43_phy_write(dev, 0x0801, b43_phy_read(dev, 0x0801) | 0x0040); + b43_phy_write(dev, 0x0060, b43_phy_read(dev, 0x0060) | 0x0040); + b43_phy_write(dev, 0x0014, b43_phy_read(dev, 0x0014) | 0x0200); + } + b43_radio_write16(dev, 0x007A, b43_radio_read16(dev, 0x007A) | 0x0070); + b43_radio_write16(dev, 0x007A, b43_radio_read16(dev, 0x007A) | 0x0080); + udelay(30); + + v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F == 31) { + for (i = 7; i >= 4; i--) { + b43_radio_write16(dev, 0x007B, i); + udelay(20); + v47F = + (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F < 31 && saved == 0xFFFF) + saved = i; + } + if (saved == 0xFFFF) + saved = 4; + } else { + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) & 0x007F); + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, 0x0814, + b43_phy_read(dev, 0x0814) | 0x0001); + b43_phy_write(dev, 0x0815, + b43_phy_read(dev, 0x0815) & 0xFFFE); + } + b43_phy_write(dev, 0x0811, b43_phy_read(dev, 0x0811) | 0x000C); + b43_phy_write(dev, 0x0812, b43_phy_read(dev, 0x0812) | 0x000C); + b43_phy_write(dev, 0x0811, b43_phy_read(dev, 0x0811) | 0x0030); + b43_phy_write(dev, 0x0812, b43_phy_read(dev, 0x0812) | 0x0030); + b43_phy_write(dev, 0x005A, 0x0480); + b43_phy_write(dev, 0x0059, 0x0810); + b43_phy_write(dev, 0x0058, 0x000D); + if (phy->rev == 0) { + b43_phy_write(dev, 0x0003, 0x0122); + } else { + b43_phy_write(dev, 0x000A, b43_phy_read(dev, 0x000A) + | 0x2000); + } + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, 0x0814, + b43_phy_read(dev, 0x0814) | 0x0004); + b43_phy_write(dev, 0x0815, + b43_phy_read(dev, 0x0815) & 0xFFFB); + } + b43_phy_write(dev, 0x0003, (b43_phy_read(dev, 0x0003) & 0xFF9F) + | 0x0040); + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x000F); + b43_set_all_gains(dev, 3, 0, 1); + b43_radio_write16(dev, 0x0043, (b43_radio_read16(dev, 0x0043) + & 0x00F0) | 0x000F); + udelay(30); + v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F == -32) { + for (i = 0; i < 4; i++) { + b43_radio_write16(dev, 0x007B, i); + udelay(20); + v47F = + (s16) ((b43_phy_read(dev, 0x047F) >> 8) & + 0x003F); + if (v47F >= 0x20) + v47F -= 0x40; + if (v47F > -31 && saved == 0xFFFF) + saved = i; + } + if (saved == 0xFFFF) + saved = 3; + } else + saved = 0; + } + b43_radio_write16(dev, 0x007B, saved); + + if (phy->rev >= 6) { + b43_phy_write(dev, 0x002E, backup[12]); + b43_phy_write(dev, 0x002F, backup[13]); + b43_phy_write(dev, 0x080F, backup[14]); + b43_phy_write(dev, 0x0810, backup[15]); + } + if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */ + b43_phy_write(dev, 0x0814, backup[3]); + b43_phy_write(dev, 0x0815, backup[4]); + } + b43_phy_write(dev, 0x005A, backup[5]); + b43_phy_write(dev, 0x0059, backup[6]); + b43_phy_write(dev, 0x0058, backup[7]); + b43_phy_write(dev, 0x000A, backup[8]); + b43_phy_write(dev, 0x0003, backup[9]); + b43_radio_write16(dev, 0x0043, backup[11]); + b43_radio_write16(dev, 0x007A, backup[10]); + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2); + b43_phy_write(dev, 0x0429, b43_phy_read(dev, 0x0429) | 0x8000); + b43_set_original_gains(dev); + if (phy->rev >= 6) { + b43_phy_write(dev, 0x0801, backup[16]); + b43_phy_write(dev, 0x0060, backup[17]); + b43_phy_write(dev, 0x0014, backup[18]); + b43_phy_write(dev, 0x0478, backup[19]); + } + b43_phy_write(dev, 0x0001, backup[0]); + b43_phy_write(dev, 0x0812, backup[2]); + b43_phy_write(dev, 0x0811, backup[1]); +} + +void b43_calc_nrssi_slope(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + u16 backup[18] = { 0 }; + u16 tmp; + s16 nrssi0, nrssi1; + + switch (phy->type) { + case B43_PHYTYPE_B: + backup[0] = b43_radio_read16(dev, 0x007A); + backup[1] = b43_radio_read16(dev, 0x0052); + backup[2] = b43_radio_read16(dev, 0x0043); + backup[3] = b43_phy_read(dev, 0x0030); + backup[4] = b43_phy_read(dev, 0x0026); + backup[5] = b43_phy_read(dev, 0x0015); + backup[6] = b43_phy_read(dev, 0x002A); + backup[7] = b43_phy_read(dev, 0x0020); + backup[8] = b43_phy_read(dev, 0x005A); + backup[9] = b43_phy_read(dev, 0x0059); + backup[10] = b43_phy_read(dev, 0x0058); + backup[11] = b43_read16(dev, 0x03E2); + backup[12] = b43_read16(dev, 0x03E6); + backup[13] = b43_read16(dev, B43_MMIO_CHANNEL_EXT); + + tmp = b43_radio_read16(dev, 0x007A); + tmp &= (phy->rev >= 5) ? 0x007F : 0x000F; + b43_radio_write16(dev, 0x007A, tmp); + b43_phy_write(dev, 0x0030, 0x00FF); + b43_write16(dev, 0x03EC, 0x7F7F); + b43_phy_write(dev, 0x0026, 0x0000); + b43_phy_write(dev, 0x0015, b43_phy_read(dev, 0x0015) | 0x0020); + b43_phy_write(dev, 0x002A, 0x08A3); + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x0080); + + nrssi0 = (s16) b43_phy_read(dev, 0x0027); + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) & 0x007F); + if (phy->rev >= 2) { + b43_write16(dev, 0x03E6, 0x0040); + } else if (phy->rev == 0) { + b43_write16(dev, 0x03E6, 0x0122); + } else { + b43_write16(dev, B43_MMIO_CHANNEL_EXT, + b43_read16(dev, + B43_MMIO_CHANNEL_EXT) & 0x2000); + } + b43_phy_write(dev, 0x0020, 0x3F3F); + b43_phy_write(dev, 0x0015, 0xF330); + b43_radio_write16(dev, 0x005A, 0x0060); + b43_radio_write16(dev, 0x0043, + b43_radio_read16(dev, 0x0043) & 0x00F0); + b43_phy_write(dev, 0x005A, 0x0480); + b43_phy_write(dev, 0x0059, 0x0810); + b43_phy_write(dev, 0x0058, 0x000D); + udelay(20); + + nrssi1 = (s16) b43_phy_read(dev, 0x0027); + b43_phy_write(dev, 0x0030, backup[3]); + b43_radio_write16(dev, 0x007A, backup[0]); + b43_write16(dev, 0x03E2, backup[11]); + b43_phy_write(dev, 0x0026, backup[4]); + b43_phy_write(dev, 0x0015, backup[5]); + b43_phy_write(dev, 0x002A, backup[6]); + b43_synth_pu_workaround(dev, phy->channel); + if (phy->rev != 0) + b43_write16(dev, 0x03F4, backup[13]); + + b43_phy_write(dev, 0x0020, backup[7]); + b43_phy_write(dev, 0x005A, backup[8]); + b43_phy_write(dev, 0x0059, backup[9]); + b43_phy_write(dev, 0x0058, backup[10]); + b43_radio_write16(dev, 0x0052, backup[1]); + b43_radio_write16(dev, 0x0043, backup[2]); + + if (nrssi0 == nrssi1) + phy->nrssislope = 0x00010000; + else + phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1); + + if (nrssi0 <= -4) { + phy->nrssi[0] = nrssi0; + phy->nrssi[1] = nrssi1; + } + break; + case B43_PHYTYPE_G: + if (phy->radio_rev >= 9) + return; + if (phy->radio_rev == 8) + b43_calc_nrssi_offset(dev); + + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, B43_PHY_G_CRS) & 0x7FFF); + b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) & 0xFFFC); + backup[7] = b43_read16(dev, 0x03E2); + b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000); + backup[0] = b43_radio_read16(dev, 0x007A); + backup[1] = b43_radio_read16(dev, 0x0052); + backup[2] = b43_radio_read16(dev, 0x0043); + backup[3] = b43_phy_read(dev, 0x0015); + backup[4] = b43_phy_read(dev, 0x005A); + backup[5] = b43_phy_read(dev, 0x0059); + backup[6] = b43_phy_read(dev, 0x0058); + backup[8] = b43_read16(dev, 0x03E6); + backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT); + if (phy->rev >= 3) { + backup[10] = b43_phy_read(dev, 0x002E); + backup[11] = b43_phy_read(dev, 0x002F); + backup[12] = b43_phy_read(dev, 0x080F); + backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL); + backup[14] = b43_phy_read(dev, 0x0801); + backup[15] = b43_phy_read(dev, 0x0060); + backup[16] = b43_phy_read(dev, 0x0014); + backup[17] = b43_phy_read(dev, 0x0478); + b43_phy_write(dev, 0x002E, 0); + b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0); + switch (phy->rev) { + case 4: + case 6: + case 7: + b43_phy_write(dev, 0x0478, + b43_phy_read(dev, 0x0478) + | 0x0100); + b43_phy_write(dev, 0x0801, + b43_phy_read(dev, 0x0801) + | 0x0040); + break; + case 3: + case 5: + b43_phy_write(dev, 0x0801, + b43_phy_read(dev, 0x0801) + & 0xFFBF); + break; + } + b43_phy_write(dev, 0x0060, b43_phy_read(dev, 0x0060) + | 0x0040); + b43_phy_write(dev, 0x0014, b43_phy_read(dev, 0x0014) + | 0x0200); + } + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x0070); + b43_set_all_gains(dev, 0, 8, 0); + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) & 0x00F7); + if (phy->rev >= 2) { + b43_phy_write(dev, 0x0811, + (b43_phy_read(dev, 0x0811) & 0xFFCF) | + 0x0030); + b43_phy_write(dev, 0x0812, + (b43_phy_read(dev, 0x0812) & 0xFFCF) | + 0x0010); + } + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x0080); + udelay(20); + + nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); + if (nrssi0 >= 0x0020) + nrssi0 -= 0x0040; + + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) & 0x007F); + if (phy->rev >= 2) { + b43_phy_write(dev, 0x0003, (b43_phy_read(dev, 0x0003) + & 0xFF9F) | 0x0040); + } + + b43_write16(dev, B43_MMIO_CHANNEL_EXT, + b43_read16(dev, B43_MMIO_CHANNEL_EXT) + | 0x2000); + b43_radio_write16(dev, 0x007A, + b43_radio_read16(dev, 0x007A) | 0x000F); + b43_phy_write(dev, 0x0015, 0xF330); + if (phy->rev >= 2) { + b43_phy_write(dev, 0x0812, + (b43_phy_read(dev, 0x0812) & 0xFFCF) | + 0x0020); + b43_phy_write(dev, 0x0811, + (b43_phy_read(dev, 0x0811) & 0xFFCF) | + 0x0020); + } + + b43_set_all_gains(dev, 3, 0, 1); + if (phy->radio_rev == 8) { + b43_radio_write16(dev, 0x0043, 0x001F); + } else { + tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F; + b43_radio_write16(dev, 0x0052, tmp | 0x0060); + tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0; + b43_radio_write16(dev, 0x0043, tmp | 0x0009); + } + b43_phy_write(dev, 0x005A, 0x0480); + b43_phy_write(dev, 0x0059, 0x0810); + b43_phy_write(dev, 0x0058, 0x000D); + udelay(20); + nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F); + if (nrssi1 >= 0x0020) + nrssi1 -= 0x0040; + if (nrssi0 == nrssi1) + phy->nrssislope = 0x00010000; + else + phy->nrssislope = 0x00400000 / (nrssi0 - nrssi1); + if (nrssi0 >= -4) { + phy->nrssi[0] = nrssi1; + phy->nrssi[1] = nrssi0; + } + if (phy->rev >= 3) { + b43_phy_write(dev, 0x002E, backup[10]); + b43_phy_write(dev, 0x002F, backup[11]); + b43_phy_write(dev, 0x080F, backup[12]); + b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]); + } + if (phy->rev >= 2) { + b43_phy_write(dev, 0x0812, + b43_phy_read(dev, 0x0812) & 0xFFCF); + b43_phy_write(dev, 0x0811, + b43_phy_read(dev, 0x0811) & 0xFFCF); + } + + b43_radio_write16(dev, 0x007A, backup[0]); + b43_radio_write16(dev, 0x0052, backup[1]); + b43_radio_write16(dev, 0x0043, backup[2]); + b43_write16(dev, 0x03E2, backup[7]); + b43_write16(dev, 0x03E6, backup[8]); + b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]); + b43_phy_write(dev, 0x0015, backup[3]); + b43_phy_write(dev, 0x005A, backup[4]); + b43_phy_write(dev, 0x0059, backup[5]); + b43_phy_write(dev, 0x0058, backup[6]); + b43_synth_pu_workaround(dev, phy->channel); + b43_phy_write(dev, 0x0802, + b43_phy_read(dev, 0x0802) | (0x0001 | 0x0002)); + b43_set_original_gains(dev); + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, B43_PHY_G_CRS) | 0x8000); + if (phy->rev >= 3) { + b43_phy_write(dev, 0x0801, backup[14]); + b43_phy_write(dev, 0x0060, backup[15]); + b43_phy_write(dev, 0x0014, backup[16]); + b43_phy_write(dev, 0x0478, backup[17]); + } + b43_nrssi_mem_update(dev); + b43_calc_nrssi_threshold(dev); + break; + default: + B43_WARN_ON(1); + } +} + +void b43_calc_nrssi_threshold(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + s32 threshold; + s32 a, b; + s16 tmp16; + u16 tmp_u16; + + switch (phy->type) { + case B43_PHYTYPE_B:{ + if (phy->radio_ver != 0x2050) + return; + if (! + (dev->dev->bus->sprom.r1. + boardflags_lo & B43_BFL_RSSI)) + return; + + if (phy->radio_rev >= 6) { + threshold = + (phy->nrssi[1] - phy->nrssi[0]) * 32; + threshold += 20 * (phy->nrssi[0] + 1); + threshold /= 40; + } else + threshold = phy->nrssi[1] - 5; + + threshold = limit_value(threshold, 0, 0x3E); + b43_phy_read(dev, 0x0020); /* dummy read */ + b43_phy_write(dev, 0x0020, + (((u16) threshold) << 8) | 0x001C); + + if (phy->radio_rev >= 6) { + b43_phy_write(dev, 0x0087, 0x0E0D); + b43_phy_write(dev, 0x0086, 0x0C0B); + b43_phy_write(dev, 0x0085, 0x0A09); + b43_phy_write(dev, 0x0084, 0x0808); + b43_phy_write(dev, 0x0083, 0x0808); + b43_phy_write(dev, 0x0082, 0x0604); + b43_phy_write(dev, 0x0081, 0x0302); + b43_phy_write(dev, 0x0080, 0x0100); + } + break; + } + case B43_PHYTYPE_G: + if (!phy->gmode || + !(dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_RSSI)) { + tmp16 = b43_nrssi_hw_read(dev, 0x20); + if (tmp16 >= 0x20) + tmp16 -= 0x40; + if (tmp16 < 3) { + b43_phy_write(dev, 0x048A, + (b43_phy_read(dev, 0x048A) + & 0xF000) | 0x09EB); + } else { + b43_phy_write(dev, 0x048A, + (b43_phy_read(dev, 0x048A) + & 0xF000) | 0x0AED); + } + } else { + if (phy->interfmode == B43_INTERFMODE_NONWLAN) { + a = 0xE; + b = 0xA; + } else if (!phy->aci_wlan_automatic && phy->aci_enable) { + a = 0x13; + b = 0x12; + } else { + a = 0xE; + b = 0x11; + } + + a = a * (phy->nrssi[1] - phy->nrssi[0]); + a += (phy->nrssi[0] << 6); + if (a < 32) + a += 31; + else + a += 32; + a = a >> 6; + a = limit_value(a, -31, 31); + + b = b * (phy->nrssi[1] - phy->nrssi[0]); + b += (phy->nrssi[0] << 6); + if (b < 32) + b += 31; + else + b += 32; + b = b >> 6; + b = limit_value(b, -31, 31); + + tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000; + tmp_u16 |= ((u32) b & 0x0000003F); + tmp_u16 |= (((u32) a & 0x0000003F) << 6); + b43_phy_write(dev, 0x048A, tmp_u16); + } + break; + default: + B43_WARN_ON(1); + } +} + +/* Stack implementation to save/restore values from the + * interference mitigation code. + * It is save to restore values in random order. + */ +static void _stack_save(u32 * _stackptr, size_t * stackidx, + u8 id, u16 offset, u16 value) +{ + u32 *stackptr = &(_stackptr[*stackidx]); + + B43_WARN_ON(offset & 0xF000); + B43_WARN_ON(id & 0xF0); + *stackptr = offset; + *stackptr |= ((u32) id) << 12; + *stackptr |= ((u32) value) << 16; + (*stackidx)++; + B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE); +} + +static u16 _stack_restore(u32 * stackptr, u8 id, u16 offset) +{ + size_t i; + + B43_WARN_ON(offset & 0xF000); + B43_WARN_ON(id & 0xF0); + for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) { + if ((*stackptr & 0x00000FFF) != offset) + continue; + if (((*stackptr & 0x0000F000) >> 12) != id) + continue; + return ((*stackptr & 0xFFFF0000) >> 16); + } + B43_WARN_ON(1); + + return 0; +} + +#define phy_stacksave(offset) \ + do { \ + _stack_save(stack, &stackidx, 0x1, (offset), \ + b43_phy_read(dev, (offset))); \ + } while (0) +#define phy_stackrestore(offset) \ + do { \ + b43_phy_write(dev, (offset), \ + _stack_restore(stack, 0x1, \ + (offset))); \ + } while (0) +#define radio_stacksave(offset) \ + do { \ + _stack_save(stack, &stackidx, 0x2, (offset), \ + b43_radio_read16(dev, (offset))); \ + } while (0) +#define radio_stackrestore(offset) \ + do { \ + b43_radio_write16(dev, (offset), \ + _stack_restore(stack, 0x2, \ + (offset))); \ + } while (0) +#define ofdmtab_stacksave(table, offset) \ + do { \ + _stack_save(stack, &stackidx, 0x3, (offset)|(table), \ + b43_ofdmtab_read16(dev, (table), (offset))); \ + } while (0) +#define ofdmtab_stackrestore(table, offset) \ + do { \ + b43_ofdmtab_write16(dev, (table), (offset), \ + _stack_restore(stack, 0x3, \ + (offset)|(table))); \ + } while (0) + +static void +b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode) +{ + struct b43_phy *phy = &dev->phy; + u16 tmp, flipped; + size_t stackidx = 0; + u32 *stack = phy->interfstack; + + switch (mode) { + case B43_INTERFMODE_NONWLAN: + if (phy->rev != 1) { + b43_phy_write(dev, 0x042B, + b43_phy_read(dev, 0x042B) | 0x0800); + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, + B43_PHY_G_CRS) & ~0x4000); + break; + } + radio_stacksave(0x0078); + tmp = (b43_radio_read16(dev, 0x0078) & 0x001E); + flipped = flip_4bit(tmp); + if (flipped < 10 && flipped >= 8) + flipped = 7; + else if (flipped >= 10) + flipped -= 3; + flipped = flip_4bit(flipped); + flipped = (flipped << 1) | 0x0020; + b43_radio_write16(dev, 0x0078, flipped); + + b43_calc_nrssi_threshold(dev); + + phy_stacksave(0x0406); + b43_phy_write(dev, 0x0406, 0x7E28); + + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) | 0x0800); + b43_phy_write(dev, B43_PHY_RADIO_BITFIELD, + b43_phy_read(dev, + B43_PHY_RADIO_BITFIELD) | 0x1000); + + phy_stacksave(0x04A0); + b43_phy_write(dev, 0x04A0, + (b43_phy_read(dev, 0x04A0) & 0xC0C0) | 0x0008); + phy_stacksave(0x04A1); + b43_phy_write(dev, 0x04A1, + (b43_phy_read(dev, 0x04A1) & 0xC0C0) | 0x0605); + phy_stacksave(0x04A2); + b43_phy_write(dev, 0x04A2, + (b43_phy_read(dev, 0x04A2) & 0xC0C0) | 0x0204); + phy_stacksave(0x04A8); + b43_phy_write(dev, 0x04A8, + (b43_phy_read(dev, 0x04A8) & 0xC0C0) | 0x0803); + phy_stacksave(0x04AB); + b43_phy_write(dev, 0x04AB, + (b43_phy_read(dev, 0x04AB) & 0xC0C0) | 0x0605); + + phy_stacksave(0x04A7); + b43_phy_write(dev, 0x04A7, 0x0002); + phy_stacksave(0x04A3); + b43_phy_write(dev, 0x04A3, 0x287A); + phy_stacksave(0x04A9); + b43_phy_write(dev, 0x04A9, 0x2027); + phy_stacksave(0x0493); + b43_phy_write(dev, 0x0493, 0x32F5); + phy_stacksave(0x04AA); + b43_phy_write(dev, 0x04AA, 0x2027); + phy_stacksave(0x04AC); + b43_phy_write(dev, 0x04AC, 0x32F5); + break; + case B43_INTERFMODE_MANUALWLAN: + if (b43_phy_read(dev, 0x0033) & 0x0800) + break; + + phy->aci_enable = 1; + + phy_stacksave(B43_PHY_RADIO_BITFIELD); + phy_stacksave(B43_PHY_G_CRS); + if (phy->rev < 2) { + phy_stacksave(0x0406); + } else { + phy_stacksave(0x04C0); + phy_stacksave(0x04C1); + } + phy_stacksave(0x0033); + phy_stacksave(0x04A7); + phy_stacksave(0x04A3); + phy_stacksave(0x04A9); + phy_stacksave(0x04AA); + phy_stacksave(0x04AC); + phy_stacksave(0x0493); + phy_stacksave(0x04A1); + phy_stacksave(0x04A0); + phy_stacksave(0x04A2); + phy_stacksave(0x048A); + phy_stacksave(0x04A8); + phy_stacksave(0x04AB); + if (phy->rev == 2) { + phy_stacksave(0x04AD); + phy_stacksave(0x04AE); + } else if (phy->rev >= 3) { + phy_stacksave(0x04AD); + phy_stacksave(0x0415); + phy_stacksave(0x0416); + phy_stacksave(0x0417); + ofdmtab_stacksave(0x1A00, 0x2); + ofdmtab_stacksave(0x1A00, 0x3); + } + phy_stacksave(0x042B); + phy_stacksave(0x048C); + + b43_phy_write(dev, B43_PHY_RADIO_BITFIELD, + b43_phy_read(dev, B43_PHY_RADIO_BITFIELD) + & ~0x1000); + b43_phy_write(dev, B43_PHY_G_CRS, + (b43_phy_read(dev, B43_PHY_G_CRS) + & 0xFFFC) | 0x0002); + + b43_phy_write(dev, 0x0033, 0x0800); + b43_phy_write(dev, 0x04A3, 0x2027); + b43_phy_write(dev, 0x04A9, 0x1CA8); + b43_phy_write(dev, 0x0493, 0x287A); + b43_phy_write(dev, 0x04AA, 0x1CA8); + b43_phy_write(dev, 0x04AC, 0x287A); + + b43_phy_write(dev, 0x04A0, (b43_phy_read(dev, 0x04A0) + & 0xFFC0) | 0x001A); + b43_phy_write(dev, 0x04A7, 0x000D); + + if (phy->rev < 2) { + b43_phy_write(dev, 0x0406, 0xFF0D); + } else if (phy->rev == 2) { + b43_phy_write(dev, 0x04C0, 0xFFFF); + b43_phy_write(dev, 0x04C1, 0x00A9); + } else { + b43_phy_write(dev, 0x04C0, 0x00C1); + b43_phy_write(dev, 0x04C1, 0x0059); + } + + b43_phy_write(dev, 0x04A1, (b43_phy_read(dev, 0x04A1) + & 0xC0FF) | 0x1800); + b43_phy_write(dev, 0x04A1, (b43_phy_read(dev, 0x04A1) + & 0xFFC0) | 0x0015); + b43_phy_write(dev, 0x04A8, (b43_phy_read(dev, 0x04A8) + & 0xCFFF) | 0x1000); + b43_phy_write(dev, 0x04A8, (b43_phy_read(dev, 0x04A8) + & 0xF0FF) | 0x0A00); + b43_phy_write(dev, 0x04AB, (b43_phy_read(dev, 0x04AB) + & 0xCFFF) | 0x1000); + b43_phy_write(dev, 0x04AB, (b43_phy_read(dev, 0x04AB) + & 0xF0FF) | 0x0800); + b43_phy_write(dev, 0x04AB, (b43_phy_read(dev, 0x04AB) + & 0xFFCF) | 0x0010); + b43_phy_write(dev, 0x04AB, (b43_phy_read(dev, 0x04AB) + & 0xFFF0) | 0x0005); + b43_phy_write(dev, 0x04A8, (b43_phy_read(dev, 0x04A8) + & 0xFFCF) | 0x0010); + b43_phy_write(dev, 0x04A8, (b43_phy_read(dev, 0x04A8) + & 0xFFF0) | 0x0006); + b43_phy_write(dev, 0x04A2, (b43_phy_read(dev, 0x04A2) + & 0xF0FF) | 0x0800); + b43_phy_write(dev, 0x04A0, (b43_phy_read(dev, 0x04A0) + & 0xF0FF) | 0x0500); + b43_phy_write(dev, 0x04A2, (b43_phy_read(dev, 0x04A2) + & 0xFFF0) | 0x000B); + + if (phy->rev >= 3) { + b43_phy_write(dev, 0x048A, b43_phy_read(dev, 0x048A) + & ~0x8000); + b43_phy_write(dev, 0x0415, (b43_phy_read(dev, 0x0415) + & 0x8000) | 0x36D8); + b43_phy_write(dev, 0x0416, (b43_phy_read(dev, 0x0416) + & 0x8000) | 0x36D8); + b43_phy_write(dev, 0x0417, (b43_phy_read(dev, 0x0417) + & 0xFE00) | 0x016D); + } else { + b43_phy_write(dev, 0x048A, b43_phy_read(dev, 0x048A) + | 0x1000); + b43_phy_write(dev, 0x048A, (b43_phy_read(dev, 0x048A) + & 0x9FFF) | 0x2000); + b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW); + } + if (phy->rev >= 2) { + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) + | 0x0800); + } + b43_phy_write(dev, 0x048C, (b43_phy_read(dev, 0x048C) + & 0xF0FF) | 0x0200); + if (phy->rev == 2) { + b43_phy_write(dev, 0x04AE, (b43_phy_read(dev, 0x04AE) + & 0xFF00) | 0x007F); + b43_phy_write(dev, 0x04AD, (b43_phy_read(dev, 0x04AD) + & 0x00FF) | 0x1300); + } else if (phy->rev >= 6) { + b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F); + b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F); + b43_phy_write(dev, 0x04AD, b43_phy_read(dev, 0x04AD) + & 0x00FF); + } + b43_calc_nrssi_slope(dev); + break; + default: + B43_WARN_ON(1); + } +} + +static void +b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode) +{ + struct b43_phy *phy = &dev->phy; + u32 *stack = phy->interfstack; + + switch (mode) { + case B43_INTERFMODE_NONWLAN: + if (phy->rev != 1) { + b43_phy_write(dev, 0x042B, + b43_phy_read(dev, 0x042B) & ~0x0800); + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, + B43_PHY_G_CRS) | 0x4000); + break; + } + radio_stackrestore(0x0078); + b43_calc_nrssi_threshold(dev); + phy_stackrestore(0x0406); + b43_phy_write(dev, 0x042B, b43_phy_read(dev, 0x042B) & ~0x0800); + if (!dev->bad_frames_preempt) { + b43_phy_write(dev, B43_PHY_RADIO_BITFIELD, + b43_phy_read(dev, B43_PHY_RADIO_BITFIELD) + & ~(1 << 11)); + } + b43_phy_write(dev, B43_PHY_G_CRS, + b43_phy_read(dev, B43_PHY_G_CRS) | 0x4000); + phy_stackrestore(0x04A0); + phy_stackrestore(0x04A1); + phy_stackrestore(0x04A2); + phy_stackrestore(0x04A8); + phy_stackrestore(0x04AB); + phy_stackrestore(0x04A7); + phy_stackrestore(0x04A3); + phy_stackrestore(0x04A9); + phy_stackrestore(0x0493); + phy_stackrestore(0x04AA); + phy_stackrestore(0x04AC); + break; + case B43_INTERFMODE_MANUALWLAN: + if (!(b43_phy_read(dev, 0x0033) & 0x0800)) + break; + + phy->aci_enable = 0; + + phy_stackrestore(B43_PHY_RADIO_BITFIELD); + phy_stackrestore(B43_PHY_G_CRS); + phy_stackrestore(0x0033); + phy_stackrestore(0x04A3); + phy_stackrestore(0x04A9); + phy_stackrestore(0x0493); + phy_stackrestore(0x04AA); + phy_stackrestore(0x04AC); + phy_stackrestore(0x04A0); + phy_stackrestore(0x04A7); + if (phy->rev >= 2) { + phy_stackrestore(0x04C0); + phy_stackrestore(0x04C1); + } else + phy_stackrestore(0x0406); + phy_stackrestore(0x04A1); + phy_stackrestore(0x04AB); + phy_stackrestore(0x04A8); + if (phy->rev == 2) { + phy_stackrestore(0x04AD); + phy_stackrestore(0x04AE); + } else if (phy->rev >= 3) { + phy_stackrestore(0x04AD); + phy_stackrestore(0x0415); + phy_stackrestore(0x0416); + phy_stackrestore(0x0417); + ofdmtab_stackrestore(0x1A00, 0x2); + ofdmtab_stackrestore(0x1A00, 0x3); + } + phy_stackrestore(0x04A2); + phy_stackrestore(0x048A); + phy_stackrestore(0x042B); + phy_stackrestore(0x048C); + b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW); + b43_calc_nrssi_slope(dev); + break; + default: + B43_WARN_ON(1); + } +} + +#undef phy_stacksave +#undef phy_stackrestore +#undef radio_stacksave +#undef radio_stackrestore +#undef ofdmtab_stacksave +#undef ofdmtab_stackrestore + +int b43_radio_set_interference_mitigation(struct b43_wldev *dev, int mode) +{ + struct b43_phy *phy = &dev->phy; + int currentmode; + + if ((phy->type != B43_PHYTYPE_G) || (phy->rev == 0) || (!phy->gmode)) + return -ENODEV; + + phy->aci_wlan_automatic = 0; + switch (mode) { + case B43_INTERFMODE_AUTOWLAN: + phy->aci_wlan_automatic = 1; + if (phy->aci_enable) + mode = B43_INTERFMODE_MANUALWLAN; + else + mode = B43_INTERFMODE_NONE; + break; + case B43_INTERFMODE_NONE: + case B43_INTERFMODE_NONWLAN: + case B43_INTERFMODE_MANUALWLAN: + break; + default: + return -EINVAL; + } + + currentmode = phy->interfmode; + if (currentmode == mode) + return 0; + if (currentmode != B43_INTERFMODE_NONE) + b43_radio_interference_mitigation_disable(dev, currentmode); + + if (mode == B43_INTERFMODE_NONE) { + phy->aci_enable = 0; + phy->aci_hw_rssi = 0; + } else + b43_radio_interference_mitigation_enable(dev, mode); + phy->interfmode = mode; + + return 0; +} + +static u16 b43_radio_core_calibration_value(struct b43_wldev *dev) +{ + u16 reg, index, ret; + + static const u8 rcc_table[] = { + 0x02, 0x03, 0x01, 0x0F, + 0x06, 0x07, 0x05, 0x0F, + 0x0A, 0x0B, 0x09, 0x0F, + 0x0E, 0x0F, 0x0D, 0x0F, + }; + + reg = b43_radio_read16(dev, 0x60); + index = (reg & 0x001E) >> 1; + ret = rcc_table[index] << 1; + ret |= (reg & 0x0001); + ret |= 0x0020; + + return ret; +} + +#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0)) +static u16 radio2050_rfover_val(struct b43_wldev *dev, + u16 phy_register, unsigned int lpd) +{ + struct b43_phy *phy = &dev->phy; + struct ssb_sprom *sprom = &(dev->dev->bus->sprom); + + if (!phy->gmode) + return 0; + + if (has_loopback_gain(phy)) { + int max_lb_gain = phy->max_lb_gain; + u16 extlna; + u16 i; + + if (phy->radio_rev == 8) + max_lb_gain += 0x3E; + else + max_lb_gain += 0x26; + if (max_lb_gain >= 0x46) { + extlna = 0x3000; + max_lb_gain -= 0x46; + } else if (max_lb_gain >= 0x3A) { + extlna = 0x1000; + max_lb_gain -= 0x3A; + } else if (max_lb_gain >= 0x2E) { + extlna = 0x2000; + max_lb_gain -= 0x2E; + } else { + extlna = 0; + max_lb_gain -= 0x10; + } + + for (i = 0; i < 16; i++) { + max_lb_gain -= (i * 6); + if (max_lb_gain < 6) + break; + } + + if ((phy->rev < 7) || + !(sprom->r1.boardflags_lo & B43_BFL_EXTLNA)) { + if (phy_register == B43_PHY_RFOVER) { + return 0x1B3; + } else if (phy_register == B43_PHY_RFOVERVAL) { + extlna |= (i << 8); + switch (lpd) { + case LPD(0, 1, 1): + return 0x0F92; + case LPD(0, 0, 1): + case LPD(1, 0, 1): + return (0x0092 | extlna); + case LPD(1, 0, 0): + return (0x0093 | extlna); + } + B43_WARN_ON(1); + } + B43_WARN_ON(1); + } else { + if (phy_register == B43_PHY_RFOVER) { + return 0x9B3; + } else if (phy_register == B43_PHY_RFOVERVAL) { + if (extlna) + extlna |= 0x8000; + extlna |= (i << 8); + switch (lpd) { + case LPD(0, 1, 1): + return 0x8F92; + case LPD(0, 0, 1): + return (0x8092 | extlna); + case LPD(1, 0, 1): + return (0x2092 | extlna); + case LPD(1, 0, 0): + return (0x2093 | extlna); + } + B43_WARN_ON(1); + } + B43_WARN_ON(1); + } + } else { + if ((phy->rev < 7) || + !(sprom->r1.boardflags_lo & B43_BFL_EXTLNA)) { + if (phy_register == B43_PHY_RFOVER) { + return 0x1B3; + } else if (phy_register == B43_PHY_RFOVERVAL) { + switch (lpd) { + case LPD(0, 1, 1): + return 0x0FB2; + case LPD(0, 0, 1): + return 0x00B2; + case LPD(1, 0, 1): + return 0x30B2; + case LPD(1, 0, 0): + return 0x30B3; + } + B43_WARN_ON(1); + } + B43_WARN_ON(1); + } else { + if (phy_register == B43_PHY_RFOVER) { + return 0x9B3; + } else if (phy_register == B43_PHY_RFOVERVAL) { + switch (lpd) { + case LPD(0, 1, 1): + return 0x8FB2; + case LPD(0, 0, 1): + return 0x80B2; + case LPD(1, 0, 1): + return 0x20B2; + case LPD(1, 0, 0): + return 0x20B3; + } + B43_WARN_ON(1); + } + B43_WARN_ON(1); + } + } + return 0; +} + +struct init2050_saved_values { + /* Core registers */ + u16 reg_3EC; + u16 reg_3E6; + u16 reg_3F4; + /* Radio registers */ + u16 radio_43; + u16 radio_51; + u16 radio_52; + /* PHY registers */ + u16 phy_pgactl; + u16 phy_base_5A; + u16 phy_base_59; + u16 phy_base_58; + u16 phy_base_30; + u16 phy_rfover; + u16 phy_rfoverval; + u16 phy_analogover; + u16 phy_analogoverval; + u16 phy_crs0; + u16 phy_classctl; + u16 phy_lo_mask; + u16 phy_lo_ctl; + u16 phy_syncctl; +}; + +u16 b43_radio_init2050(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + struct init2050_saved_values sav; + u16 rcc; + u16 radio78; + u16 ret; + u16 i, j; + u32 tmp1 = 0, tmp2 = 0; + + memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */ + + sav.radio_43 = b43_radio_read16(dev, 0x43); + sav.radio_51 = b43_radio_read16(dev, 0x51); + sav.radio_52 = b43_radio_read16(dev, 0x52); + sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL); + sav.phy_base_5A = b43_phy_read(dev, B43_PHY_BASE(0x5A)); + sav.phy_base_59 = b43_phy_read(dev, B43_PHY_BASE(0x59)); + sav.phy_base_58 = b43_phy_read(dev, B43_PHY_BASE(0x58)); + + if (phy->type == B43_PHYTYPE_B) { + sav.phy_base_30 = b43_phy_read(dev, B43_PHY_BASE(0x30)); + sav.reg_3EC = b43_read16(dev, 0x3EC); + + b43_phy_write(dev, B43_PHY_BASE(0x30), 0xFF); + b43_write16(dev, 0x3EC, 0x3F3F); + } else if (phy->gmode || phy->rev >= 2) { + sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER); + sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); + sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER); + sav.phy_analogoverval = + b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); + sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0); + sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL); + + b43_phy_write(dev, B43_PHY_ANALOGOVER, + b43_phy_read(dev, B43_PHY_ANALOGOVER) + | 0x0003); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + b43_phy_read(dev, B43_PHY_ANALOGOVERVAL) + & 0xFFFC); + b43_phy_write(dev, B43_PHY_CRS0, b43_phy_read(dev, B43_PHY_CRS0) + & 0x7FFF); + b43_phy_write(dev, B43_PHY_CLASSCTL, + b43_phy_read(dev, B43_PHY_CLASSCTL) + & 0xFFFC); + if (has_loopback_gain(phy)) { + sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK); + sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL); + + if (phy->rev >= 3) + b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020); + else + b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020); + b43_phy_write(dev, B43_PHY_LO_CTL, 0); + } + + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, + LPD(0, 1, 1))); + b43_phy_write(dev, B43_PHY_RFOVER, + radio2050_rfover_val(dev, B43_PHY_RFOVER, 0)); + } + b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000); + + sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL); + b43_phy_write(dev, B43_PHY_SYNCCTL, b43_phy_read(dev, B43_PHY_SYNCCTL) + & 0xFF7F); + sav.reg_3E6 = b43_read16(dev, 0x3E6); + sav.reg_3F4 = b43_read16(dev, 0x3F4); + + if (phy->analog == 0) { + b43_write16(dev, 0x03E6, 0x0122); + } else { + if (phy->analog >= 2) { + b43_phy_write(dev, B43_PHY_BASE(0x03), + (b43_phy_read(dev, B43_PHY_BASE(0x03)) + & 0xFFBF) | 0x40); + } + b43_write16(dev, B43_MMIO_CHANNEL_EXT, + (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000)); + } + + rcc = b43_radio_core_calibration_value(dev); + + if (phy->type == B43_PHYTYPE_B) + b43_radio_write16(dev, 0x78, 0x26); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, + LPD(0, 1, 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF); + b43_phy_write(dev, B43_PHY_BASE(0x2B), 0x1403); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, B43_PHY_RFOVERVAL, + LPD(0, 0, 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0); + b43_radio_write16(dev, 0x51, b43_radio_read16(dev, 0x51) + | 0x0004); + if (phy->radio_rev == 8) { + b43_radio_write16(dev, 0x43, 0x1F); + } else { + b43_radio_write16(dev, 0x52, 0); + b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43) + & 0xFFF0) | 0x0009); + } + b43_phy_write(dev, B43_PHY_BASE(0x58), 0); + + for (i = 0; i < 16; i++) { + b43_phy_write(dev, B43_PHY_BASE(0x5A), 0x0480); + b43_phy_write(dev, B43_PHY_BASE(0x59), 0xC810); + b43_phy_write(dev, B43_PHY_BASE(0x58), 0x000D); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); + udelay(10); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0); + udelay(10); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, 0))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0); + udelay(20); + tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE); + b43_phy_write(dev, B43_PHY_BASE(0x58), 0); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); + } + udelay(10); + + b43_phy_write(dev, B43_PHY_BASE(0x58), 0); + tmp1++; + tmp1 >>= 9; + + for (i = 0; i < 16; i++) { + radio78 = ((flip_4bit(i) << 1) | 0x20); + b43_radio_write16(dev, 0x78, radio78); + udelay(10); + for (j = 0; j < 16; j++) { + b43_phy_write(dev, B43_PHY_BASE(0x5A), 0x0D80); + b43_phy_write(dev, B43_PHY_BASE(0x59), 0xC810); + b43_phy_write(dev, B43_PHY_BASE(0x58), 0x000D); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, + 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); + udelay(10); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, + 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0); + udelay(10); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, + 0))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0); + udelay(10); + tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE); + b43_phy_write(dev, B43_PHY_BASE(0x58), 0); + if (phy->gmode || phy->rev >= 2) { + b43_phy_write(dev, B43_PHY_RFOVERVAL, + radio2050_rfover_val(dev, + B43_PHY_RFOVERVAL, + LPD(1, 0, + 1))); + } + b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0); + } + tmp2++; + tmp2 >>= 8; + if (tmp1 < tmp2) + break; + } + + /* Restore the registers */ + b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl); + b43_radio_write16(dev, 0x51, sav.radio_51); + b43_radio_write16(dev, 0x52, sav.radio_52); + b43_radio_write16(dev, 0x43, sav.radio_43); + b43_phy_write(dev, B43_PHY_BASE(0x5A), sav.phy_base_5A); + b43_phy_write(dev, B43_PHY_BASE(0x59), sav.phy_base_59); + b43_phy_write(dev, B43_PHY_BASE(0x58), sav.phy_base_58); + b43_write16(dev, 0x3E6, sav.reg_3E6); + if (phy->analog != 0) + b43_write16(dev, 0x3F4, sav.reg_3F4); + b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl); + b43_synth_pu_workaround(dev, phy->channel); + if (phy->type == B43_PHYTYPE_B) { + b43_phy_write(dev, B43_PHY_BASE(0x30), sav.phy_base_30); + b43_write16(dev, 0x3EC, sav.reg_3EC); + } else if (phy->gmode) { + b43_write16(dev, B43_MMIO_PHY_RADIO, + b43_read16(dev, B43_MMIO_PHY_RADIO) + & 0x7FFF); + b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover); + b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval); + b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover); + b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, + sav.phy_analogoverval); + b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0); + b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl); + if (has_loopback_gain(phy)) { + b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask); + b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl); + } + } + if (i > 15) + ret = radio78; + else + ret = rcc; + + return ret; +} + +void b43_radio_init2060(struct b43_wldev *dev) +{ + int err; + + b43_radio_write16(dev, 0x0004, 0x00C0); + b43_radio_write16(dev, 0x0005, 0x0008); + b43_radio_write16(dev, 0x0009, 0x0040); + b43_radio_write16(dev, 0x0005, 0x00AA); + b43_radio_write16(dev, 0x0032, 0x008F); + b43_radio_write16(dev, 0x0006, 0x008F); + b43_radio_write16(dev, 0x0034, 0x008F); + b43_radio_write16(dev, 0x002C, 0x0007); + b43_radio_write16(dev, 0x0082, 0x0080); + b43_radio_write16(dev, 0x0080, 0x0000); + b43_radio_write16(dev, 0x003F, 0x00DA); + b43_radio_write16(dev, 0x0005, b43_radio_read16(dev, 0x0005) & ~0x0008); + b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0010); + b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0020); + b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0020); + msleep(1); /* delay 400usec */ + + b43_radio_write16(dev, 0x0081, + (b43_radio_read16(dev, 0x0081) & ~0x0020) | 0x0010); + msleep(1); /* delay 400usec */ + + b43_radio_write16(dev, 0x0005, + (b43_radio_read16(dev, 0x0005) & ~0x0008) | 0x0008); + b43_radio_write16(dev, 0x0085, b43_radio_read16(dev, 0x0085) & ~0x0010); + b43_radio_write16(dev, 0x0005, b43_radio_read16(dev, 0x0005) & ~0x0008); + b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0040); + b43_radio_write16(dev, 0x0081, + (b43_radio_read16(dev, 0x0081) & ~0x0040) | 0x0040); + b43_radio_write16(dev, 0x0005, + (b43_radio_read16(dev, 0x0081) & ~0x0008) | 0x0008); + b43_phy_write(dev, 0x0063, 0xDDC6); + b43_phy_write(dev, 0x0069, 0x07BE); + b43_phy_write(dev, 0x006A, 0x0000); + + err = b43_radio_selectchannel(dev, B43_DEFAULT_CHANNEL_A, 0); + B43_WARN_ON(err); + + msleep(1); +} + +static inline u16 freq_r3A_value(u16 frequency) +{ + u16 value; + + if (frequency < 5091) + value = 0x0040; + else if (frequency < 5321) + value = 0x0000; + else if (frequency < 5806) + value = 0x0080; + else + value = 0x0040; + + return value; +} + +void b43_radio_set_tx_iq(struct b43_wldev *dev) +{ + static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 }; + static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A }; + u16 tmp = b43_radio_read16(dev, 0x001E); + int i, j; + + for (i = 0; i < 5; i++) { + for (j = 0; j < 5; j++) { + if (tmp == (data_high[i] << 4 | data_low[j])) { + b43_phy_write(dev, 0x0069, + (i - j) << 8 | 0x00C0); + return; + } + } + } +} + +int b43_radio_selectchannel(struct b43_wldev *dev, + u8 channel, int synthetic_pu_workaround) +{ + struct b43_phy *phy = &dev->phy; + u16 r8, tmp; + u16 freq; + u16 channelcookie; + + /* First we set the channel radio code to prevent the + * firmware from sending ghost packets. + */ + channelcookie = channel; + if (phy->type == B43_PHYTYPE_A) + channelcookie |= 0x100; + b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN, channelcookie); + + if (phy->type == B43_PHYTYPE_A) { + if (channel > 200) + return -EINVAL; + freq = channel2freq_a(channel); + + r8 = b43_radio_read16(dev, 0x0008); + b43_write16(dev, 0x03F0, freq); + b43_radio_write16(dev, 0x0008, r8); + + //TODO: write max channel TX power? to Radio 0x2D + tmp = b43_radio_read16(dev, 0x002E); + tmp &= 0x0080; + //TODO: OR tmp with the Power out estimation for this channel? + b43_radio_write16(dev, 0x002E, tmp); + + if (freq >= 4920 && freq <= 5500) { + /* + * r8 = (((freq * 15 * 0xE1FC780F) >> 32) / 29) & 0x0F; + * = (freq * 0.025862069 + */ + r8 = 3 * freq / 116; /* is equal to r8 = freq * 0.025862 */ + } + b43_radio_write16(dev, 0x0007, (r8 << 4) | r8); + b43_radio_write16(dev, 0x0020, (r8 << 4) | r8); + b43_radio_write16(dev, 0x0021, (r8 << 4) | r8); + b43_radio_write16(dev, 0x0022, (b43_radio_read16(dev, 0x0022) + & 0x000F) | (r8 << 4)); + b43_radio_write16(dev, 0x002A, (r8 << 4)); + b43_radio_write16(dev, 0x002B, (r8 << 4)); + b43_radio_write16(dev, 0x0008, (b43_radio_read16(dev, 0x0008) + & 0x00F0) | (r8 << 4)); + b43_radio_write16(dev, 0x0029, (b43_radio_read16(dev, 0x0029) + & 0xFF0F) | 0x00B0); + b43_radio_write16(dev, 0x0035, 0x00AA); + b43_radio_write16(dev, 0x0036, 0x0085); + b43_radio_write16(dev, 0x003A, (b43_radio_read16(dev, 0x003A) + & 0xFF20) | + freq_r3A_value(freq)); + b43_radio_write16(dev, 0x003D, + b43_radio_read16(dev, 0x003D) & 0x00FF); + b43_radio_write16(dev, 0x0081, (b43_radio_read16(dev, 0x0081) + & 0xFF7F) | 0x0080); + b43_radio_write16(dev, 0x0035, + b43_radio_read16(dev, 0x0035) & 0xFFEF); + b43_radio_write16(dev, 0x0035, (b43_radio_read16(dev, 0x0035) + & 0xFFEF) | 0x0010); + b43_radio_set_tx_iq(dev); + //TODO: TSSI2dbm workaround + b43_phy_xmitpower(dev); //FIXME correct? + } else { + if ((channel < 1) || (channel > 14)) + return -EINVAL; + + if (synthetic_pu_workaround) + b43_synth_pu_workaround(dev, channel); + + b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel)); + + if (channel == 14) { + if (dev->dev->bus->sprom.r1.country_code == + SSB_SPROM1CCODE_JAPAN) + b43_hf_write(dev, + b43_hf_read(dev) & ~B43_HF_ACPR); + else + b43_hf_write(dev, + b43_hf_read(dev) | B43_HF_ACPR); + b43_write16(dev, B43_MMIO_CHANNEL_EXT, + b43_read16(dev, B43_MMIO_CHANNEL_EXT) + | (1 << 11)); + } else { + b43_write16(dev, B43_MMIO_CHANNEL_EXT, + b43_read16(dev, B43_MMIO_CHANNEL_EXT) + & 0xF7BF); + } + } + + phy->channel = channel; + /* Wait for the radio to tune to the channel and stabilize. */ + msleep(8); + + return 0; +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */ +static u16 b43_get_txgain_base_band(u16 txpower) +{ + u16 ret; + + B43_WARN_ON(txpower > 63); + + if (txpower >= 54) + ret = 2; + else if (txpower >= 49) + ret = 4; + else if (txpower >= 44) + ret = 5; + else + ret = 6; + + return ret; +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */ +static u16 b43_get_txgain_freq_power_amp(u16 txpower) +{ + u16 ret; + + B43_WARN_ON(txpower > 63); + + if (txpower >= 32) + ret = 0; + else if (txpower >= 25) + ret = 1; + else if (txpower >= 20) + ret = 2; + else if (txpower >= 12) + ret = 3; + else + ret = 4; + + return ret; +} + +/* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */ +static u16 b43_get_txgain_dac(u16 txpower) +{ + u16 ret; + + B43_WARN_ON(txpower > 63); + + if (txpower >= 54) + ret = txpower - 53; + else if (txpower >= 49) + ret = txpower - 42; + else if (txpower >= 44) + ret = txpower - 37; + else if (txpower >= 32) + ret = txpower - 32; + else if (txpower >= 25) + ret = txpower - 20; + else if (txpower >= 20) + ret = txpower - 13; + else if (txpower >= 12) + ret = txpower - 8; + else + ret = txpower; + + return ret; +} + +static void b43_radio_set_txpower_a(struct b43_wldev *dev, u16 txpower) +{ + struct b43_phy *phy = &dev->phy; + u16 pamp, base, dac, t; + + txpower = limit_value(txpower, 0, 63); + + pamp = b43_get_txgain_freq_power_amp(txpower); + pamp <<= 5; + pamp &= 0x00E0; + b43_phy_write(dev, 0x0019, pamp); + + base = b43_get_txgain_base_band(txpower); + base &= 0x000F; + b43_phy_write(dev, 0x0017, base | 0x0020); + + t = b43_ofdmtab_read16(dev, 0x3000, 1); + t &= 0x0007; + + dac = b43_get_txgain_dac(txpower); + dac <<= 3; + dac |= t; + + b43_ofdmtab_write16(dev, 0x3000, 1, dac); + + phy->txpwr_offset = txpower; + + //TODO: FuncPlaceholder (Adjust BB loft cancel) +} + +void b43_radio_turn_on(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + int err; + + might_sleep(); + + if (phy->radio_on) + return; + + switch (phy->type) { + case B43_PHYTYPE_A: + b43_radio_write16(dev, 0x0004, 0x00C0); + b43_radio_write16(dev, 0x0005, 0x0008); + b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) & 0xFFF7); + b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) & 0xFFF7); + b43_radio_init2060(dev); + break; + case B43_PHYTYPE_B: + case B43_PHYTYPE_G: + b43_phy_write(dev, 0x0015, 0x8000); + b43_phy_write(dev, 0x0015, 0xCC00); + b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000)); + err = b43_radio_selectchannel(dev, B43_DEFAULT_CHANNEL_BG, 1); + B43_WARN_ON(err); + break; + default: + B43_WARN_ON(1); + } + phy->radio_on = 1; + b43dbg(dev->wl, "Radio turned on\n"); +} + +void b43_radio_turn_off(struct b43_wldev *dev) +{ + struct b43_phy *phy = &dev->phy; + + if (phy->type == B43_PHYTYPE_A) { + b43_radio_write16(dev, 0x0004, 0x00FF); + b43_radio_write16(dev, 0x0005, 0x00FB); + b43_phy_write(dev, 0x0010, b43_phy_read(dev, 0x0010) | 0x0008); + b43_phy_write(dev, 0x0011, b43_phy_read(dev, 0x0011) | 0x0008); + } + if (phy->type == B43_PHYTYPE_G && dev->dev->id.revision >= 5) { + b43_phy_write(dev, 0x0811, b43_phy_read(dev, 0x0811) | 0x008C); + b43_phy_write(dev, 0x0812, b43_phy_read(dev, 0x0812) & 0xFF73); + } else + b43_phy_write(dev, 0x0015, 0xAA00); + phy->radio_on = 0; + b43dbg(dev->wl, "Radio turned off\n"); +} diff --git a/drivers/net/wireless/b43/phy.h b/drivers/net/wireless/b43/phy.h new file mode 100644 index 000000000000..d1f623cb9b34 --- /dev/null +++ b/drivers/net/wireless/b43/phy.h @@ -0,0 +1,297 @@ +#ifndef B43_PHY_H_ +#define B43_PHY_H_ + +#include <linux/types.h> + +struct b43_wldev; +struct b43_phy; + +/*** PHY Registers ***/ + +/* Routing */ +#define B43_PHYROUTE_OFDM_GPHY 0x400 +#define B43_PHYROUTE_EXT_GPHY 0x800 + +/* Base registers. */ +#define B43_PHY_BASE(reg) (reg) +/* OFDM (A) registers of a G-PHY */ +#define B43_PHY_OFDM(reg) ((reg) | B43_PHYROUTE_OFDM_GPHY) +/* Extended G-PHY registers */ +#define B43_PHY_EXTG(reg) ((reg) | B43_PHYROUTE_EXT_GPHY) + +/* OFDM (A) PHY Registers */ +#define B43_PHY_VERSION_OFDM B43_PHY_OFDM(0x00) /* Versioning register for A-PHY */ +#define B43_PHY_BBANDCFG B43_PHY_OFDM(0x01) /* Baseband config */ +#define B43_PHY_BBANDCFG_RXANT 0x180 /* RX Antenna selection */ +#define B43_PHY_BBANDCFG_RXANT_SHIFT 7 +#define B43_PHY_PWRDOWN B43_PHY_OFDM(0x03) /* Powerdown */ +#define B43_PHY_CRSTHRES1 B43_PHY_OFDM(0x06) /* CRS Threshold 1 */ +#define B43_PHY_LNAHPFCTL B43_PHY_OFDM(0x1C) /* LNA/HPF control */ +#define B43_PHY_ADIVRELATED B43_PHY_OFDM(0x27) /* FIXME rename */ +#define B43_PHY_CRS0 B43_PHY_OFDM(0x29) +#define B43_PHY_ANTDWELL B43_PHY_OFDM(0x2B) /* Antenna dwell */ +#define B43_PHY_ANTDWELL_AUTODIV1 0x0100 /* Automatic RX diversity start antenna */ +#define B43_PHY_ENCORE B43_PHY_OFDM(0x49) /* "Encore" (RangeMax / BroadRange) */ +#define B43_PHY_ENCORE_EN 0x0200 /* Encore enable */ +#define B43_PHY_LMS B43_PHY_OFDM(0x55) +#define B43_PHY_OFDM61 B43_PHY_OFDM(0x61) /* FIXME rename */ +#define B43_PHY_OFDM61_10 0x0010 /* FIXME rename */ +#define B43_PHY_IQBAL B43_PHY_OFDM(0x69) /* I/Q balance */ +#define B43_PHY_OTABLECTL B43_PHY_OFDM(0x72) /* OFDM table control (see below) */ +#define B43_PHY_OTABLEOFF 0x03FF /* OFDM table offset (see below) */ +#define B43_PHY_OTABLENR 0xFC00 /* OFDM table number (see below) */ +#define B43_PHY_OTABLENR_SHIFT 10 +#define B43_PHY_OTABLEI B43_PHY_OFDM(0x73) /* OFDM table data I */ +#define B43_PHY_OTABLEQ B43_PHY_OFDM(0x74) /* OFDM table data Q */ +#define B43_PHY_HPWR_TSSICTL B43_PHY_OFDM(0x78) /* Hardware power TSSI control */ +#define B43_PHY_NRSSITHRES B43_PHY_OFDM(0x8A) /* NRSSI threshold */ +#define B43_PHY_ANTWRSETT B43_PHY_OFDM(0x8C) /* Antenna WR settle */ +#define B43_PHY_ANTWRSETT_ARXDIV 0x2000 /* Automatic RX diversity enabled */ +#define B43_PHY_CLIPPWRDOWNT B43_PHY_OFDM(0x93) /* Clip powerdown threshold */ +#define B43_PHY_OFDM9B B43_PHY_OFDM(0x9B) /* FIXME rename */ +#define B43_PHY_N1P1GAIN B43_PHY_OFDM(0xA0) +#define B43_PHY_P1P2GAIN B43_PHY_OFDM(0xA1) +#define B43_PHY_N1N2GAIN B43_PHY_OFDM(0xA2) +#define B43_PHY_CLIPTHRES B43_PHY_OFDM(0xA3) +#define B43_PHY_CLIPN1P2THRES B43_PHY_OFDM(0xA4) +#define B43_PHY_DIVSRCHIDX B43_PHY_OFDM(0xA8) /* Divider search gain/index */ +#define B43_PHY_CLIPP2THRES B43_PHY_OFDM(0xA9) +#define B43_PHY_CLIPP3THRES B43_PHY_OFDM(0xAA) +#define B43_PHY_DIVP1P2GAIN B43_PHY_OFDM(0xAB) +#define B43_PHY_DIVSRCHGAINBACK B43_PHY_OFDM(0xAD) /* Divider search gain back */ +#define B43_PHY_DIVSRCHGAINCHNG B43_PHY_OFDM(0xAE) /* Divider search gain change */ +#define B43_PHY_CRSTHRES1_R1 B43_PHY_OFDM(0xC0) /* CRS Threshold 1 (rev 1 only) */ +#define B43_PHY_CRSTHRES2_R1 B43_PHY_OFDM(0xC1) /* CRS Threshold 2 (rev 1 only) */ +#define B43_PHY_TSSIP_LTBASE B43_PHY_OFDM(0x380) /* TSSI power lookup table base */ +#define B43_PHY_DC_LTBASE B43_PHY_OFDM(0x3A0) /* DC lookup table base */ +#define B43_PHY_GAIN_LTBASE B43_PHY_OFDM(0x3C0) /* Gain lookup table base */ + +/* CCK (B) PHY Registers */ +#define B43_PHY_VERSION_CCK B43_PHY_BASE(0x00) /* Versioning register for B-PHY */ +#define B43_PHY_CCKBBANDCFG B43_PHY_BASE(0x01) /* Contains antenna 0/1 control bit */ +#define B43_PHY_PGACTL B43_PHY_BASE(0x15) /* PGA control */ +#define B43_PHY_PGACTL_LPF 0x1000 /* Low pass filter (?) */ +#define B43_PHY_PGACTL_LOWBANDW 0x0040 /* Low bandwidth flag */ +#define B43_PHY_PGACTL_UNKNOWN 0xEFA0 +#define B43_PHY_FBCTL1 B43_PHY_BASE(0x18) /* Frequency bandwidth control 1 */ +#define B43_PHY_ITSSI B43_PHY_BASE(0x29) /* Idle TSSI */ +#define B43_PHY_LO_LEAKAGE B43_PHY_BASE(0x2D) /* Measured LO leakage */ +#define B43_PHY_ENERGY B43_PHY_BASE(0x33) /* Energy */ +#define B43_PHY_SYNCCTL B43_PHY_BASE(0x35) +#define B43_PHY_FBCTL2 B43_PHY_BASE(0x38) /* Frequency bandwidth control 2 */ +#define B43_PHY_DACCTL B43_PHY_BASE(0x60) /* DAC control */ +#define B43_PHY_RCCALOVER B43_PHY_BASE(0x78) /* RC calibration override */ + +/* Extended G-PHY Registers */ +#define B43_PHY_CLASSCTL B43_PHY_EXTG(0x02) /* Classify control */ +#define B43_PHY_GTABCTL B43_PHY_EXTG(0x03) /* G-PHY table control (see below) */ +#define B43_PHY_GTABOFF 0x03FF /* G-PHY table offset (see below) */ +#define B43_PHY_GTABNR 0xFC00 /* G-PHY table number (see below) */ +#define B43_PHY_GTABNR_SHIFT 10 +#define B43_PHY_GTABDATA B43_PHY_EXTG(0x04) /* G-PHY table data */ +#define B43_PHY_LO_MASK B43_PHY_EXTG(0x0F) /* Local Oscillator control mask */ +#define B43_PHY_LO_CTL B43_PHY_EXTG(0x10) /* Local Oscillator control */ +#define B43_PHY_RFOVER B43_PHY_EXTG(0x11) /* RF override */ +#define B43_PHY_RFOVERVAL B43_PHY_EXTG(0x12) /* RF override value */ +#define B43_PHY_RFOVERVAL_EXTLNA 0x8000 +#define B43_PHY_RFOVERVAL_LNA 0x7000 +#define B43_PHY_RFOVERVAL_LNA_SHIFT 12 +#define B43_PHY_RFOVERVAL_PGA 0x0F00 +#define B43_PHY_RFOVERVAL_PGA_SHIFT 8 +#define B43_PHY_RFOVERVAL_UNK 0x0010 /* Unknown, always set. */ +#define B43_PHY_RFOVERVAL_TRSWRX 0x00E0 +#define B43_PHY_RFOVERVAL_BW 0x0003 /* Bandwidth flags */ +#define B43_PHY_RFOVERVAL_BW_LPF 0x0001 /* Low Pass Filter */ +#define B43_PHY_RFOVERVAL_BW_LBW 0x0002 /* Low Bandwidth (when set), high when unset */ +#define B43_PHY_ANALOGOVER B43_PHY_EXTG(0x14) /* Analog override */ +#define B43_PHY_ANALOGOVERVAL B43_PHY_EXTG(0x15) /* Analog override value */ + +/*** OFDM table numbers ***/ +#define B43_OFDMTAB(number, offset) (((number) << B43_PHY_OTABLENR_SHIFT) | (offset)) +#define B43_OFDMTAB_AGC1 B43_OFDMTAB(0x00, 0) +#define B43_OFDMTAB_GAIN0 B43_OFDMTAB(0x00, 0) +#define B43_OFDMTAB_GAINX B43_OFDMTAB(0x01, 0) //TODO rename +#define B43_OFDMTAB_GAIN1 B43_OFDMTAB(0x01, 4) +#define B43_OFDMTAB_AGC3 B43_OFDMTAB(0x02, 0) +#define B43_OFDMTAB_GAIN2 B43_OFDMTAB(0x02, 3) +#define B43_OFDMTAB_LNAHPFGAIN1 B43_OFDMTAB(0x03, 0) +#define B43_OFDMTAB_WRSSI B43_OFDMTAB(0x04, 0) +#define B43_OFDMTAB_LNAHPFGAIN2 B43_OFDMTAB(0x04, 0) +#define B43_OFDMTAB_NOISESCALE B43_OFDMTAB(0x05, 0) +#define B43_OFDMTAB_AGC2 B43_OFDMTAB(0x06, 0) +#define B43_OFDMTAB_ROTOR B43_OFDMTAB(0x08, 0) +#define B43_OFDMTAB_ADVRETARD B43_OFDMTAB(0x09, 0) +#define B43_OFDMTAB_DAC B43_OFDMTAB(0x0C, 0) +#define B43_OFDMTAB_DC B43_OFDMTAB(0x0E, 7) +#define B43_OFDMTAB_PWRDYN2 B43_OFDMTAB(0x0E, 12) +#define B43_OFDMTAB_LNAGAIN B43_OFDMTAB(0x0E, 13) +//TODO +#define B43_OFDMTAB_LPFGAIN B43_OFDMTAB(0x0F, 12) +#define B43_OFDMTAB_RSSI B43_OFDMTAB(0x10, 0) +//TODO +#define B43_OFDMTAB_AGC1_R1 B43_OFDMTAB(0x13, 0) +#define B43_OFDMTAB_GAINX_R1 B43_OFDMTAB(0x14, 0) //TODO rename +#define B43_OFDMTAB_MINSIGSQ B43_OFDMTAB(0x14, 1) +#define B43_OFDMTAB_AGC3_R1 B43_OFDMTAB(0x15, 0) +#define B43_OFDMTAB_WRSSI_R1 B43_OFDMTAB(0x15, 4) +#define B43_OFDMTAB_TSSI B43_OFDMTAB(0x15, 0) +#define B43_OFDMTAB_DACRFPABB B43_OFDMTAB(0x16, 0) +#define B43_OFDMTAB_DACOFF B43_OFDMTAB(0x17, 0) +#define B43_OFDMTAB_DCBIAS B43_OFDMTAB(0x18, 0) + +u16 b43_ofdmtab_read16(struct b43_wldev *dev, u16 table, u16 offset); +void b43_ofdmtab_write16(struct b43_wldev *dev, u16 table, + u16 offset, u16 value); +u32 b43_ofdmtab_read32(struct b43_wldev *dev, u16 table, u16 offset); +void b43_ofdmtab_write32(struct b43_wldev *dev, u16 table, + u16 offset, u32 value); + +/*** G-PHY table numbers */ +#define B43_GTAB(number, offset) (((number) << B43_PHY_GTABNR_SHIFT) | (offset)) +#define B43_GTAB_NRSSI B43_GTAB(0x00, 0) +#define B43_GTAB_TRFEMW B43_GTAB(0x0C, 0x120) +#define B43_GTAB_ORIGTR B43_GTAB(0x2E, 0x298) + +u16 b43_gtab_read(struct b43_wldev *dev, u16 table, u16 offset); //TODO implement +void b43_gtab_write(struct b43_wldev *dev, u16 table, u16 offset, u16 value); //TODO implement + +#define B43_DEFAULT_CHANNEL_A 36 +#define B43_DEFAULT_CHANNEL_BG 6 + +enum { + B43_ANTENNA0, /* Antenna 0 */ + B43_ANTENNA1, /* Antenna 0 */ + B43_ANTENNA_AUTO1, /* Automatic, starting with antenna 1 */ + B43_ANTENNA_AUTO0, /* Automatic, starting with antenna 0 */ + + B43_ANTENNA_AUTO = B43_ANTENNA_AUTO0, + B43_ANTENNA_DEFAULT = B43_ANTENNA_AUTO, +}; + +enum { + B43_INTERFMODE_NONE, + B43_INTERFMODE_NONWLAN, + B43_INTERFMODE_MANUALWLAN, + B43_INTERFMODE_AUTOWLAN, +}; + +/* Masks for the different PHY versioning registers. */ +#define B43_PHYVER_ANALOG 0xF000 +#define B43_PHYVER_ANALOG_SHIFT 12 +#define B43_PHYVER_TYPE 0x0F00 +#define B43_PHYVER_TYPE_SHIFT 8 +#define B43_PHYVER_VERSION 0x00FF + +void b43_raw_phy_lock(struct b43_wldev *dev); +#define b43_phy_lock(dev, flags) \ + do { \ + local_irq_save(flags); \ + b43_raw_phy_lock(dev); \ + } while (0) +void b43_raw_phy_unlock(struct b43_wldev *dev); +#define b43_phy_unlock(dev, flags) \ + do { \ + b43_raw_phy_unlock(dev); \ + local_irq_restore(flags); \ + } while (0) + +u16 b43_phy_read(struct b43_wldev *dev, u16 offset); +void b43_phy_write(struct b43_wldev *dev, u16 offset, u16 val); + +int b43_phy_init_tssi2dbm_table(struct b43_wldev *dev); + +void b43_phy_early_init(struct b43_wldev *dev); +int b43_phy_init(struct b43_wldev *dev); + +void b43_set_rx_antenna(struct b43_wldev *dev, int antenna); + +void b43_phy_xmitpower(struct b43_wldev *dev); +void b43_gphy_dc_lt_init(struct b43_wldev *dev); + +/* Returns the boolean whether the board has HardwarePowerControl */ +bool b43_has_hardware_pctl(struct b43_phy *phy); +/* Returns the boolean whether "TX Magnification" is enabled. */ +#define has_tx_magnification(phy) \ + (((phy)->rev >= 2) && \ + ((phy)->radio_ver == 0x2050) && \ + ((phy)->radio_rev == 8)) +/* Card uses the loopback gain stuff */ +#define has_loopback_gain(phy) \ + (((phy)->rev > 1) || ((phy)->gmode)) + +/* Radio Attenuation (RF Attenuation) */ +struct b43_rfatt { + u8 att; /* Attenuation value */ + bool with_padmix; /* Flag, PAD Mixer enabled. */ +}; +struct b43_rfatt_list { + /* Attenuation values list */ + const struct b43_rfatt *list; + u8 len; + /* Minimum/Maximum attenuation values */ + u8 min_val; + u8 max_val; +}; + +/* Baseband Attenuation */ +struct b43_bbatt { + u8 att; /* Attenuation value */ +}; +struct b43_bbatt_list { + /* Attenuation values list */ + const struct b43_bbatt *list; + u8 len; + /* Minimum/Maximum attenuation values */ + u8 min_val; + u8 max_val; +}; + +/* tx_control bits. */ +#define B43_TXCTL_PA3DB 0x40 /* PA Gain 3dB */ +#define B43_TXCTL_PA2DB 0x20 /* PA Gain 2dB */ +#define B43_TXCTL_TXMIX 0x10 /* TX Mixer Gain */ + +/* Write BasebandAttenuation value to the device. */ +void b43_phy_set_baseband_attenuation(struct b43_wldev *dev, + u16 baseband_attenuation); + +extern const u8 b43_radio_channel_codes_bg[]; + +void b43_radio_lock(struct b43_wldev *dev); +void b43_radio_unlock(struct b43_wldev *dev); + +u16 b43_radio_read16(struct b43_wldev *dev, u16 offset); +void b43_radio_write16(struct b43_wldev *dev, u16 offset, u16 val); + +u16 b43_radio_init2050(struct b43_wldev *dev); +void b43_radio_init2060(struct b43_wldev *dev); + +void b43_radio_turn_on(struct b43_wldev *dev); +void b43_radio_turn_off(struct b43_wldev *dev); + +int b43_radio_selectchannel(struct b43_wldev *dev, u8 channel, + int synthetic_pu_workaround); + +u8 b43_radio_aci_detect(struct b43_wldev *dev, u8 channel); +u8 b43_radio_aci_scan(struct b43_wldev *dev); + +int b43_radio_set_interference_mitigation(struct b43_wldev *dev, int mode); + +void b43_calc_nrssi_slope(struct b43_wldev *dev); +void b43_calc_nrssi_threshold(struct b43_wldev *dev); +s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset); +void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val); +void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val); +void b43_nrssi_mem_update(struct b43_wldev *dev); + +void b43_radio_set_tx_iq(struct b43_wldev *dev); +u16 b43_radio_calibrationvalue(struct b43_wldev *dev); + +void b43_put_attenuation_into_ranges(struct b43_wldev *dev, + int *_bbatt, int *_rfatt); + +void b43_set_txpower_g(struct b43_wldev *dev, + const struct b43_bbatt *bbatt, + const struct b43_rfatt *rfatt, u8 tx_control); + +#endif /* B43_PHY_H_ */ diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c new file mode 100644 index 000000000000..4ac91fdd356e --- /dev/null +++ b/drivers/net/wireless/b43/pio.c @@ -0,0 +1,650 @@ +/* + + Broadcom B43 wireless driver + + PIO Transmission + + Copyright (c) 2005 Michael Buesch <mb@bu3sch.de> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "pio.h" +#include "main.h" +#include "xmit.h" + +#include <linux/delay.h> + +static void tx_start(struct b43_pioqueue *queue) +{ + b43_pio_write(queue, B43_PIO_TXCTL, B43_PIO_TXCTL_INIT); +} + +static void tx_octet(struct b43_pioqueue *queue, u8 octet) +{ + if (queue->need_workarounds) { + b43_pio_write(queue, B43_PIO_TXDATA, octet); + b43_pio_write(queue, B43_PIO_TXCTL, B43_PIO_TXCTL_WRITELO); + } else { + b43_pio_write(queue, B43_PIO_TXCTL, B43_PIO_TXCTL_WRITELO); + b43_pio_write(queue, B43_PIO_TXDATA, octet); + } +} + +static u16 tx_get_next_word(const u8 * txhdr, + const u8 * packet, + size_t txhdr_size, unsigned int *pos) +{ + const u8 *source; + unsigned int i = *pos; + u16 ret; + + if (i < txhdr_size) { + source = txhdr; + } else { + source = packet; + i -= txhdr_size; + } + ret = le16_to_cpu(*((u16 *) (source + i))); + *pos += 2; + + return ret; +} + +static void tx_data(struct b43_pioqueue *queue, + u8 * txhdr, const u8 * packet, unsigned int octets) +{ + u16 data; + unsigned int i = 0; + + if (queue->need_workarounds) { + data = tx_get_next_word(txhdr, packet, + sizeof(struct b43_txhdr_fw4), &i); + b43_pio_write(queue, B43_PIO_TXDATA, data); + } + b43_pio_write(queue, B43_PIO_TXCTL, + B43_PIO_TXCTL_WRITELO | B43_PIO_TXCTL_WRITEHI); + while (i < octets - 1) { + data = tx_get_next_word(txhdr, packet, + sizeof(struct b43_txhdr_fw4), &i); + b43_pio_write(queue, B43_PIO_TXDATA, data); + } + if (octets % 2) + tx_octet(queue, + packet[octets - sizeof(struct b43_txhdr_fw4) - 1]); +} + +static void tx_complete(struct b43_pioqueue *queue, struct sk_buff *skb) +{ + if (queue->need_workarounds) { + b43_pio_write(queue, B43_PIO_TXDATA, skb->data[skb->len - 1]); + b43_pio_write(queue, B43_PIO_TXCTL, + B43_PIO_TXCTL_WRITELO | B43_PIO_TXCTL_COMPLETE); + } else { + b43_pio_write(queue, B43_PIO_TXCTL, B43_PIO_TXCTL_COMPLETE); + } +} + +static u16 generate_cookie(struct b43_pioqueue *queue, + struct b43_pio_txpacket *packet) +{ + u16 cookie = 0x0000; + int packetindex; + + /* We use the upper 4 bits for the PIO + * controller ID and the lower 12 bits + * for the packet index (in the cache). + */ + switch (queue->mmio_base) { + case B43_MMIO_PIO1_BASE: + break; + case B43_MMIO_PIO2_BASE: + cookie = 0x1000; + break; + case B43_MMIO_PIO3_BASE: + cookie = 0x2000; + break; + case B43_MMIO_PIO4_BASE: + cookie = 0x3000; + break; + default: + B43_WARN_ON(1); + } + packetindex = pio_txpacket_getindex(packet); + B43_WARN_ON(packetindex & ~0x0FFF); + cookie |= (u16) packetindex; + + return cookie; +} + +static +struct b43_pioqueue *parse_cookie(struct b43_wldev *dev, + u16 cookie, struct b43_pio_txpacket **packet) +{ + struct b43_pio *pio = &dev->pio; + struct b43_pioqueue *queue = NULL; + int packetindex; + + switch (cookie & 0xF000) { + case 0x0000: + queue = pio->queue0; + break; + case 0x1000: + queue = pio->queue1; + break; + case 0x2000: + queue = pio->queue2; + break; + case 0x3000: + queue = pio->queue3; + break; + default: + B43_WARN_ON(1); + } + packetindex = (cookie & 0x0FFF); + B43_WARN_ON(!(packetindex >= 0 && packetindex < B43_PIO_MAXTXPACKETS)); + *packet = &(queue->tx_packets_cache[packetindex]); + + return queue; +} + +union txhdr_union { + struct b43_txhdr_fw4 txhdr_fw4; +}; + +static void pio_tx_write_fragment(struct b43_pioqueue *queue, + struct sk_buff *skb, + struct b43_pio_txpacket *packet, + size_t txhdr_size) +{ + union txhdr_union txhdr_data; + u8 *txhdr = NULL; + unsigned int octets; + + txhdr = (u8 *) (&txhdr_data.txhdr_fw4); + + B43_WARN_ON(skb_shinfo(skb)->nr_frags); + b43_generate_txhdr(queue->dev, + txhdr, skb->data, skb->len, + &packet->txstat.control, + generate_cookie(queue, packet)); + + tx_start(queue); + octets = skb->len + txhdr_size; + if (queue->need_workarounds) + octets--; + tx_data(queue, txhdr, (u8 *) skb->data, octets); + tx_complete(queue, skb); +} + +static void free_txpacket(struct b43_pio_txpacket *packet) +{ + struct b43_pioqueue *queue = packet->queue; + + if (packet->skb) + dev_kfree_skb_any(packet->skb); + list_move(&packet->list, &queue->txfree); + queue->nr_txfree++; +} + +static int pio_tx_packet(struct b43_pio_txpacket *packet) +{ + struct b43_pioqueue *queue = packet->queue; + struct sk_buff *skb = packet->skb; + u16 octets; + + octets = (u16) skb->len + sizeof(struct b43_txhdr_fw4); + if (queue->tx_devq_size < octets) { + b43warn(queue->dev->wl, "PIO queue too small. " + "Dropping packet.\n"); + /* Drop it silently (return success) */ + free_txpacket(packet); + return 0; + } + B43_WARN_ON(queue->tx_devq_packets > B43_PIO_MAXTXDEVQPACKETS); + B43_WARN_ON(queue->tx_devq_used > queue->tx_devq_size); + /* Check if there is sufficient free space on the device + * TX queue. If not, return and let the TX tasklet + * retry later. + */ + if (queue->tx_devq_packets == B43_PIO_MAXTXDEVQPACKETS) + return -EBUSY; + if (queue->tx_devq_used + octets > queue->tx_devq_size) + return -EBUSY; + /* Now poke the device. */ + pio_tx_write_fragment(queue, skb, packet, sizeof(struct b43_txhdr_fw4)); + + /* Account for the packet size. + * (We must not overflow the device TX queue) + */ + queue->tx_devq_packets++; + queue->tx_devq_used += octets; + + /* Transmission started, everything ok, move the + * packet to the txrunning list. + */ + list_move_tail(&packet->list, &queue->txrunning); + + return 0; +} + +static void tx_tasklet(unsigned long d) +{ + struct b43_pioqueue *queue = (struct b43_pioqueue *)d; + struct b43_wldev *dev = queue->dev; + unsigned long flags; + struct b43_pio_txpacket *packet, *tmp_packet; + int err; + u16 txctl; + + spin_lock_irqsave(&dev->wl->irq_lock, flags); + if (queue->tx_frozen) + goto out_unlock; + txctl = b43_pio_read(queue, B43_PIO_TXCTL); + if (txctl & B43_PIO_TXCTL_SUSPEND) + goto out_unlock; + + list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) { + /* Try to transmit the packet. This can fail, if + * the device queue is full. In case of failure, the + * packet is left in the txqueue. + * If transmission succeed, the packet is moved to txrunning. + * If it is impossible to transmit the packet, it + * is dropped. + */ + err = pio_tx_packet(packet); + if (err) + break; + } + out_unlock: + spin_unlock_irqrestore(&dev->wl->irq_lock, flags); +} + +static void setup_txqueues(struct b43_pioqueue *queue) +{ + struct b43_pio_txpacket *packet; + int i; + + queue->nr_txfree = B43_PIO_MAXTXPACKETS; + for (i = 0; i < B43_PIO_MAXTXPACKETS; i++) { + packet = &(queue->tx_packets_cache[i]); + + packet->queue = queue; + INIT_LIST_HEAD(&packet->list); + + list_add(&packet->list, &queue->txfree); + } +} + +static +struct b43_pioqueue *b43_setup_pioqueue(struct b43_wldev *dev, + u16 pio_mmio_base) +{ + struct b43_pioqueue *queue; + u16 qsize; + + queue = kzalloc(sizeof(*queue), GFP_KERNEL); + if (!queue) + goto out; + + queue->dev = dev; + queue->mmio_base = pio_mmio_base; + queue->need_workarounds = (dev->dev->id.revision < 3); + + INIT_LIST_HEAD(&queue->txfree); + INIT_LIST_HEAD(&queue->txqueue); + INIT_LIST_HEAD(&queue->txrunning); + tasklet_init(&queue->txtask, tx_tasklet, (unsigned long)queue); + + b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) + & ~B43_MACCTL_BE); + + qsize = b43_read16(dev, queue->mmio_base + B43_PIO_TXQBUFSIZE); + if (qsize == 0) { + b43err(dev->wl, "This card does not support PIO " + "operation mode. Please use DMA mode " + "(module parameter pio=0).\n"); + goto err_freequeue; + } + if (qsize <= B43_PIO_TXQADJUST) { + b43err(dev->wl, "PIO tx device-queue too small (%u)\n", qsize); + goto err_freequeue; + } + qsize -= B43_PIO_TXQADJUST; + queue->tx_devq_size = qsize; + + setup_txqueues(queue); + + out: + return queue; + + err_freequeue: + kfree(queue); + queue = NULL; + goto out; +} + +static void cancel_transfers(struct b43_pioqueue *queue) +{ + struct b43_pio_txpacket *packet, *tmp_packet; + + tasklet_disable(&queue->txtask); + + list_for_each_entry_safe(packet, tmp_packet, &queue->txrunning, list) + free_txpacket(packet); + list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) + free_txpacket(packet); +} + +static void b43_destroy_pioqueue(struct b43_pioqueue *queue) +{ + if (!queue) + return; + + cancel_transfers(queue); + kfree(queue); +} + +void b43_pio_free(struct b43_wldev *dev) +{ + struct b43_pio *pio; + + if (!b43_using_pio(dev)) + return; + pio = &dev->pio; + + b43_destroy_pioqueue(pio->queue3); + pio->queue3 = NULL; + b43_destroy_pioqueue(pio->queue2); + pio->queue2 = NULL; + b43_destroy_pioqueue(pio->queue1); + pio->queue1 = NULL; + b43_destroy_pioqueue(pio->queue0); + pio->queue0 = NULL; +} + +int b43_pio_init(struct b43_wldev *dev) +{ + struct b43_pio *pio = &dev->pio; + struct b43_pioqueue *queue; + int err = -ENOMEM; + + queue = b43_setup_pioqueue(dev, B43_MMIO_PIO1_BASE); + if (!queue) + goto out; + pio->queue0 = queue; + + queue = b43_setup_pioqueue(dev, B43_MMIO_PIO2_BASE); + if (!queue) + goto err_destroy0; + pio->queue1 = queue; + + queue = b43_setup_pioqueue(dev, B43_MMIO_PIO3_BASE); + if (!queue) + goto err_destroy1; + pio->queue2 = queue; + + queue = b43_setup_pioqueue(dev, B43_MMIO_PIO4_BASE); + if (!queue) + goto err_destroy2; + pio->queue3 = queue; + + if (dev->dev->id.revision < 3) + dev->irq_savedstate |= B43_IRQ_PIO_WORKAROUND; + + b43dbg(dev->wl, "PIO initialized\n"); + err = 0; + out: + return err; + + err_destroy2: + b43_destroy_pioqueue(pio->queue2); + pio->queue2 = NULL; + err_destroy1: + b43_destroy_pioqueue(pio->queue1); + pio->queue1 = NULL; + err_destroy0: + b43_destroy_pioqueue(pio->queue0); + pio->queue0 = NULL; + goto out; +} + +int b43_pio_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl) +{ + struct b43_pioqueue *queue = dev->pio.queue1; + struct b43_pio_txpacket *packet; + + B43_WARN_ON(queue->tx_suspended); + B43_WARN_ON(list_empty(&queue->txfree)); + + packet = list_entry(queue->txfree.next, struct b43_pio_txpacket, list); + packet->skb = skb; + + memset(&packet->txstat, 0, sizeof(packet->txstat)); + memcpy(&packet->txstat.control, ctl, sizeof(*ctl)); + + list_move_tail(&packet->list, &queue->txqueue); + queue->nr_txfree--; + queue->nr_tx_packets++; + B43_WARN_ON(queue->nr_txfree >= B43_PIO_MAXTXPACKETS); + + tasklet_schedule(&queue->txtask); + + return 0; +} + +void b43_pio_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ + struct b43_pioqueue *queue; + struct b43_pio_txpacket *packet; + + queue = parse_cookie(dev, status->cookie, &packet); + if (B43_WARN_ON(!queue)) + return; + + queue->tx_devq_packets--; + queue->tx_devq_used -= + (packet->skb->len + sizeof(struct b43_txhdr_fw4)); + + if (status->acked) { + packet->txstat.flags |= IEEE80211_TX_STATUS_ACK; + } else { + if (!(packet->txstat.control.flags & IEEE80211_TXCTL_NO_ACK)) + packet->txstat.excessive_retries = 1; + } + if (status->frame_count == 0) { + /* The frame was not transmitted at all. */ + packet->txstat.retry_count = 0; + } else + packet->txstat.retry_count = status->frame_count - 1; + ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb, + &(packet->txstat)); + packet->skb = NULL; + + free_txpacket(packet); + /* If there are packets on the txqueue, poke the tasklet + * to transmit them. + */ + if (!list_empty(&queue->txqueue)) + tasklet_schedule(&queue->txtask); +} + +void b43_pio_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats) +{ + struct b43_pio *pio = &dev->pio; + struct b43_pioqueue *queue; + struct ieee80211_tx_queue_stats_data *data; + + queue = pio->queue1; + data = &(stats->data[0]); + data->len = B43_PIO_MAXTXPACKETS - queue->nr_txfree; + data->limit = B43_PIO_MAXTXPACKETS; + data->count = queue->nr_tx_packets; +} + +static void pio_rx_error(struct b43_pioqueue *queue, + int clear_buffers, const char *error) +{ + int i; + + b43err(queue->dev->wl, "PIO RX error: %s\n", error); + b43_pio_write(queue, B43_PIO_RXCTL, B43_PIO_RXCTL_READY); + if (clear_buffers) { + B43_WARN_ON(queue->mmio_base != B43_MMIO_PIO1_BASE); + for (i = 0; i < 15; i++) { + /* Dummy read. */ + b43_pio_read(queue, B43_PIO_RXDATA); + } + } +} + +void b43_pio_rx(struct b43_pioqueue *queue) +{ + u16 preamble[21] = { 0 }; + struct b43_rxhdr_fw4 *rxhdr; + u16 tmp, len, macstat; + int i, preamble_readwords; + struct sk_buff *skb; + + tmp = b43_pio_read(queue, B43_PIO_RXCTL); + if (!(tmp & B43_PIO_RXCTL_DATAAVAILABLE)) + return; + b43_pio_write(queue, B43_PIO_RXCTL, B43_PIO_RXCTL_DATAAVAILABLE); + + for (i = 0; i < 10; i++) { + tmp = b43_pio_read(queue, B43_PIO_RXCTL); + if (tmp & B43_PIO_RXCTL_READY) + goto data_ready; + udelay(10); + } + b43dbg(queue->dev->wl, "PIO RX timed out\n"); + return; + data_ready: + + len = b43_pio_read(queue, B43_PIO_RXDATA); + if (unlikely(len > 0x700)) { + pio_rx_error(queue, 0, "len > 0x700"); + return; + } + if (unlikely(len == 0 && queue->mmio_base != B43_MMIO_PIO4_BASE)) { + pio_rx_error(queue, 0, "len == 0"); + return; + } + preamble[0] = cpu_to_le16(len); + if (queue->mmio_base == B43_MMIO_PIO4_BASE) + preamble_readwords = 14 / sizeof(u16); + else + preamble_readwords = 18 / sizeof(u16); + for (i = 0; i < preamble_readwords; i++) { + tmp = b43_pio_read(queue, B43_PIO_RXDATA); + preamble[i + 1] = cpu_to_le16(tmp); + } + rxhdr = (struct b43_rxhdr_fw4 *)preamble; + macstat = le16_to_cpu(rxhdr->mac_status); + if (macstat & B43_RX_MAC_FCSERR) { + pio_rx_error(queue, + (queue->mmio_base == B43_MMIO_PIO1_BASE), + "Frame FCS error"); + return; + } + if (queue->mmio_base == B43_MMIO_PIO4_BASE) { + /* We received an xmit status. */ + struct b43_hwtxstatus *hw; + + hw = (struct b43_hwtxstatus *)(preamble + 1); + b43_handle_hwtxstatus(queue->dev, hw); + + return; + } + + skb = dev_alloc_skb(len); + if (unlikely(!skb)) { + pio_rx_error(queue, 1, "OOM"); + return; + } + skb_put(skb, len); + for (i = 0; i < len - 1; i += 2) { + tmp = b43_pio_read(queue, B43_PIO_RXDATA); + *((u16 *) (skb->data + i)) = cpu_to_le16(tmp); + } + if (len % 2) { + tmp = b43_pio_read(queue, B43_PIO_RXDATA); + skb->data[len - 1] = (tmp & 0x00FF); +/* The specs say the following is required, but + * it is wrong and corrupts the PLCP. If we don't do + * this, the PLCP seems to be correct. So ifdef it out for now. + */ +#if 0 + if (rxflags2 & B43_RXHDR_FLAGS2_TYPE2FRAME) + skb->data[2] = (tmp & 0xFF00) >> 8; + else + skb->data[0] = (tmp & 0xFF00) >> 8; +#endif + } + b43_rx(queue->dev, skb, rxhdr); +} + +void b43_pio_tx_suspend(struct b43_pioqueue *queue) +{ + b43_power_saving_ctl_bits(queue->dev, B43_PS_AWAKE); + b43_pio_write(queue, B43_PIO_TXCTL, b43_pio_read(queue, B43_PIO_TXCTL) + | B43_PIO_TXCTL_SUSPEND); +} + +void b43_pio_tx_resume(struct b43_pioqueue *queue) +{ + b43_pio_write(queue, B43_PIO_TXCTL, b43_pio_read(queue, B43_PIO_TXCTL) + & ~B43_PIO_TXCTL_SUSPEND); + b43_power_saving_ctl_bits(queue->dev, 0); + tasklet_schedule(&queue->txtask); +} + +void b43_pio_freeze_txqueues(struct b43_wldev *dev) +{ + struct b43_pio *pio; + + B43_WARN_ON(!b43_using_pio(dev)); + pio = &dev->pio; + pio->queue0->tx_frozen = 1; + pio->queue1->tx_frozen = 1; + pio->queue2->tx_frozen = 1; + pio->queue3->tx_frozen = 1; +} + +void b43_pio_thaw_txqueues(struct b43_wldev *dev) +{ + struct b43_pio *pio; + + B43_WARN_ON(!b43_using_pio(dev)); + pio = &dev->pio; + pio->queue0->tx_frozen = 0; + pio->queue1->tx_frozen = 0; + pio->queue2->tx_frozen = 0; + pio->queue3->tx_frozen = 0; + if (!list_empty(&pio->queue0->txqueue)) + tasklet_schedule(&pio->queue0->txtask); + if (!list_empty(&pio->queue1->txqueue)) + tasklet_schedule(&pio->queue1->txtask); + if (!list_empty(&pio->queue2->txqueue)) + tasklet_schedule(&pio->queue2->txtask); + if (!list_empty(&pio->queue3->txqueue)) + tasklet_schedule(&pio->queue3->txtask); +} diff --git a/drivers/net/wireless/b43/pio.h b/drivers/net/wireless/b43/pio.h new file mode 100644 index 000000000000..46d6d2ea9b5f --- /dev/null +++ b/drivers/net/wireless/b43/pio.h @@ -0,0 +1,153 @@ +#ifndef B43_PIO_H_ +#define B43_PIO_H_ + +#include "b43.h" + +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/skbuff.h> + +#define B43_PIO_TXCTL 0x00 +#define B43_PIO_TXDATA 0x02 +#define B43_PIO_TXQBUFSIZE 0x04 +#define B43_PIO_RXCTL 0x08 +#define B43_PIO_RXDATA 0x0A + +#define B43_PIO_TXCTL_WRITELO (1 << 0) +#define B43_PIO_TXCTL_WRITEHI (1 << 1) +#define B43_PIO_TXCTL_COMPLETE (1 << 2) +#define B43_PIO_TXCTL_INIT (1 << 3) +#define B43_PIO_TXCTL_SUSPEND (1 << 7) + +#define B43_PIO_RXCTL_DATAAVAILABLE (1 << 0) +#define B43_PIO_RXCTL_READY (1 << 1) + +/* PIO constants */ +#define B43_PIO_MAXTXDEVQPACKETS 31 +#define B43_PIO_TXQADJUST 80 + +/* PIO tuning knobs */ +#define B43_PIO_MAXTXPACKETS 256 + +#ifdef CONFIG_B43_PIO + +struct b43_pioqueue; +struct b43_xmitstatus; + +struct b43_pio_txpacket { + struct b43_pioqueue *queue; + struct sk_buff *skb; + struct ieee80211_tx_status txstat; + struct list_head list; +}; + +#define pio_txpacket_getindex(packet) ((int)((packet) - (packet)->queue->tx_packets_cache)) + +struct b43_pioqueue { + struct b43_wldev *dev; + u16 mmio_base; + + bool tx_suspended; + bool tx_frozen; + bool need_workarounds; /* Workarounds needed for core.rev < 3 */ + + /* Adjusted size of the device internal TX buffer. */ + u16 tx_devq_size; + /* Used octets of the device internal TX buffer. */ + u16 tx_devq_used; + /* Used packet slots in the device internal TX buffer. */ + u8 tx_devq_packets; + /* Packets from the txfree list can + * be taken on incoming TX requests. + */ + struct list_head txfree; + unsigned int nr_txfree; + /* Packets on the txqueue are queued, + * but not completely written to the chip, yet. + */ + struct list_head txqueue; + /* Packets on the txrunning queue are completely + * posted to the device. We are waiting for the txstatus. + */ + struct list_head txrunning; + /* Total number or packets sent. + * (This counter can obviously wrap). + */ + unsigned int nr_tx_packets; + struct tasklet_struct txtask; + struct b43_pio_txpacket tx_packets_cache[B43_PIO_MAXTXPACKETS]; +}; + +static inline u16 b43_pio_read(struct b43_pioqueue *queue, u16 offset) +{ + return b43_read16(queue->dev, queue->mmio_base + offset); +} + +static inline + void b43_pio_write(struct b43_pioqueue *queue, u16 offset, u16 value) +{ + b43_write16(queue->dev, queue->mmio_base + offset, value); + mmiowb(); +} + +int b43_pio_init(struct b43_wldev *dev); +void b43_pio_free(struct b43_wldev *dev); + +int b43_pio_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl); +void b43_pio_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status); +void b43_pio_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats); +void b43_pio_rx(struct b43_pioqueue *queue); + +/* Suspend TX queue in hardware. */ +void b43_pio_tx_suspend(struct b43_pioqueue *queue); +void b43_pio_tx_resume(struct b43_pioqueue *queue); +/* Suspend (freeze) the TX tasklet (software level). */ +void b43_pio_freeze_txqueues(struct b43_wldev *dev); +void b43_pio_thaw_txqueues(struct b43_wldev *dev); + +#else /* CONFIG_B43_PIO */ + +static inline int b43_pio_init(struct b43_wldev *dev) +{ + return 0; +} +static inline void b43_pio_free(struct b43_wldev *dev) +{ +} +static inline + int b43_pio_tx(struct b43_wldev *dev, + struct sk_buff *skb, struct ieee80211_tx_control *ctl) +{ + return 0; +} +static inline + void b43_pio_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ +} +static inline + void b43_pio_get_tx_stats(struct b43_wldev *dev, + struct ieee80211_tx_queue_stats *stats) +{ +} +static inline void b43_pio_rx(struct b43_pioqueue *queue) +{ +} +static inline void b43_pio_tx_suspend(struct b43_pioqueue *queue) +{ +} +static inline void b43_pio_tx_resume(struct b43_pioqueue *queue) +{ +} +static inline void b43_pio_freeze_txqueues(struct b43_wldev *dev) +{ +} +static inline void b43_pio_thaw_txqueues(struct b43_wldev *dev) +{ +} + +#endif /* CONFIG_B43_PIO */ +#endif /* B43_PIO_H_ */ diff --git a/drivers/net/wireless/b43/sysfs.c b/drivers/net/wireless/b43/sysfs.c new file mode 100644 index 000000000000..fcb777383e70 --- /dev/null +++ b/drivers/net/wireless/b43/sysfs.c @@ -0,0 +1,235 @@ +/* + + Broadcom B43 wireless driver + + SYSFS support routines + + Copyright (c) 2006 Michael Buesch <mb@bu3sch.de> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "sysfs.h" +#include "main.h" +#include "phy.h" + +#include <linux/capability.h> + +#define GENERIC_FILESIZE 64 + +static int get_integer(const char *buf, size_t count) +{ + char tmp[10 + 1] = { 0 }; + int ret = -EINVAL; + + if (count == 0) + goto out; + count = min(count, (size_t) 10); + memcpy(tmp, buf, count); + ret = simple_strtol(tmp, NULL, 10); + out: + return ret; +} + +static int get_boolean(const char *buf, size_t count) +{ + if (count != 0) { + if (buf[0] == '1') + return 1; + if (buf[0] == '0') + return 0; + if (count >= 4 && memcmp(buf, "true", 4) == 0) + return 1; + if (count >= 5 && memcmp(buf, "false", 5) == 0) + return 0; + if (count >= 3 && memcmp(buf, "yes", 3) == 0) + return 1; + if (count >= 2 && memcmp(buf, "no", 2) == 0) + return 0; + if (count >= 2 && memcmp(buf, "on", 2) == 0) + return 1; + if (count >= 3 && memcmp(buf, "off", 3) == 0) + return 0; + } + return -EINVAL; +} + +static ssize_t b43_attr_interfmode_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + ssize_t count = 0; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + mutex_lock(&wldev->wl->mutex); + + switch (wldev->phy.interfmode) { + case B43_INTERFMODE_NONE: + count = + snprintf(buf, PAGE_SIZE, + "0 (No Interference Mitigation)\n"); + break; + case B43_INTERFMODE_NONWLAN: + count = + snprintf(buf, PAGE_SIZE, + "1 (Non-WLAN Interference Mitigation)\n"); + break; + case B43_INTERFMODE_MANUALWLAN: + count = + snprintf(buf, PAGE_SIZE, + "2 (WLAN Interference Mitigation)\n"); + break; + default: + B43_WARN_ON(1); + } + + mutex_unlock(&wldev->wl->mutex); + + return count; +} + +static ssize_t b43_attr_interfmode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + unsigned long flags; + int err; + int mode; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + mode = get_integer(buf, count); + switch (mode) { + case 0: + mode = B43_INTERFMODE_NONE; + break; + case 1: + mode = B43_INTERFMODE_NONWLAN; + break; + case 2: + mode = B43_INTERFMODE_MANUALWLAN; + break; + case 3: + mode = B43_INTERFMODE_AUTOWLAN; + break; + default: + return -EINVAL; + } + + mutex_lock(&wldev->wl->mutex); + spin_lock_irqsave(&wldev->wl->irq_lock, flags); + + err = b43_radio_set_interference_mitigation(wldev, mode); + if (err) { + b43err(wldev->wl, "Interference Mitigation not " + "supported by device\n"); + } + mmiowb(); + spin_unlock_irqrestore(&wldev->wl->irq_lock, flags); + mutex_unlock(&wldev->wl->mutex); + + return err ? err : count; +} + +static DEVICE_ATTR(interference, 0644, + b43_attr_interfmode_show, b43_attr_interfmode_store); + +static ssize_t b43_attr_preamble_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + ssize_t count; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + mutex_lock(&wldev->wl->mutex); + + if (wldev->short_preamble) + count = + snprintf(buf, PAGE_SIZE, "1 (Short Preamble enabled)\n"); + else + count = + snprintf(buf, PAGE_SIZE, "0 (Short Preamble disabled)\n"); + + mutex_unlock(&wldev->wl->mutex); + + return count; +} + +static ssize_t b43_attr_preamble_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct b43_wldev *wldev = dev_to_b43_wldev(dev); + unsigned long flags; + int value; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + value = get_boolean(buf, count); + if (value < 0) + return value; + mutex_lock(&wldev->wl->mutex); + spin_lock_irqsave(&wldev->wl->irq_lock, flags); + + wldev->short_preamble = !!value; + + spin_unlock_irqrestore(&wldev->wl->irq_lock, flags); + mutex_unlock(&wldev->wl->mutex); + + return count; +} + +static DEVICE_ATTR(shortpreamble, 0644, + b43_attr_preamble_show, b43_attr_preamble_store); + +int b43_sysfs_register(struct b43_wldev *wldev) +{ + struct device *dev = wldev->dev->dev; + int err; + + B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED); + + err = device_create_file(dev, &dev_attr_interference); + if (err) + goto out; + err = device_create_file(dev, &dev_attr_shortpreamble); + if (err) + goto err_remove_interfmode; + + out: + return err; + err_remove_interfmode: + device_remove_file(dev, &dev_attr_interference); + goto out; +} + +void b43_sysfs_unregister(struct b43_wldev *wldev) +{ + struct device *dev = wldev->dev->dev; + + device_remove_file(dev, &dev_attr_shortpreamble); + device_remove_file(dev, &dev_attr_interference); +} diff --git a/drivers/net/wireless/b43/sysfs.h b/drivers/net/wireless/b43/sysfs.h new file mode 100644 index 000000000000..12bda9ef1a85 --- /dev/null +++ b/drivers/net/wireless/b43/sysfs.h @@ -0,0 +1,9 @@ +#ifndef B43_SYSFS_H_ +#define B43_SYSFS_H_ + +struct b43_wldev; + +int b43_sysfs_register(struct b43_wldev *dev); +void b43_sysfs_unregister(struct b43_wldev *dev); + +#endif /* B43_SYSFS_H_ */ diff --git a/drivers/net/wireless/b43/tables.c b/drivers/net/wireless/b43/tables.c new file mode 100644 index 000000000000..15a87183a572 --- /dev/null +++ b/drivers/net/wireless/b43/tables.c @@ -0,0 +1,375 @@ +/* + + Broadcom B43 wireless driver + + Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, + Copyright (c) 2005 Stefano Brivio <st3@riseup.net> + Copyright (c) 2006, 2006 Michael Buesch <mb@bu3sch.de> + Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> + Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "b43.h" +#include "tables.h" +#include "phy.h" + +const u32 b43_tab_rotor[] = { + 0xFEB93FFD, 0xFEC63FFD, /* 0 */ + 0xFED23FFD, 0xFEDF3FFD, + 0xFEEC3FFE, 0xFEF83FFE, + 0xFF053FFE, 0xFF113FFE, + 0xFF1E3FFE, 0xFF2A3FFF, /* 8 */ + 0xFF373FFF, 0xFF443FFF, + 0xFF503FFF, 0xFF5D3FFF, + 0xFF693FFF, 0xFF763FFF, + 0xFF824000, 0xFF8F4000, /* 16 */ + 0xFF9B4000, 0xFFA84000, + 0xFFB54000, 0xFFC14000, + 0xFFCE4000, 0xFFDA4000, + 0xFFE74000, 0xFFF34000, /* 24 */ + 0x00004000, 0x000D4000, + 0x00194000, 0x00264000, + 0x00324000, 0x003F4000, + 0x004B4000, 0x00584000, /* 32 */ + 0x00654000, 0x00714000, + 0x007E4000, 0x008A3FFF, + 0x00973FFF, 0x00A33FFF, + 0x00B03FFF, 0x00BC3FFF, /* 40 */ + 0x00C93FFF, 0x00D63FFF, + 0x00E23FFE, 0x00EF3FFE, + 0x00FB3FFE, 0x01083FFE, + 0x01143FFE, 0x01213FFD, /* 48 */ + 0x012E3FFD, 0x013A3FFD, + 0x01473FFD, +}; + +const u32 b43_tab_retard[] = { + 0xDB93CB87, 0xD666CF64, /* 0 */ + 0xD1FDD358, 0xCDA6D826, + 0xCA38DD9F, 0xC729E2B4, + 0xC469E88E, 0xC26AEE2B, + 0xC0DEF46C, 0xC073FA62, /* 8 */ + 0xC01D00D5, 0xC0760743, + 0xC1560D1E, 0xC2E51369, + 0xC4ED18FF, 0xC7AC1ED7, + 0xCB2823B2, 0xCEFA28D9, /* 16 */ + 0xD2F62D3F, 0xD7BB3197, + 0xDCE53568, 0xE1FE3875, + 0xE7D13B35, 0xED663D35, + 0xF39B3EC4, 0xF98E3FA7, /* 24 */ + 0x00004000, 0x06723FA7, + 0x0C653EC4, 0x129A3D35, + 0x182F3B35, 0x1E023875, + 0x231B3568, 0x28453197, /* 32 */ + 0x2D0A2D3F, 0x310628D9, + 0x34D823B2, 0x38541ED7, + 0x3B1318FF, 0x3D1B1369, + 0x3EAA0D1E, 0x3F8A0743, /* 40 */ + 0x3FE300D5, 0x3F8DFA62, + 0x3F22F46C, 0x3D96EE2B, + 0x3B97E88E, 0x38D7E2B4, + 0x35C8DD9F, 0x325AD826, /* 48 */ + 0x2E03D358, 0x299ACF64, + 0x246DCB87, +}; + +const u16 b43_tab_finefreqa[] = { + 0x0082, 0x0082, 0x0102, 0x0182, /* 0 */ + 0x0202, 0x0282, 0x0302, 0x0382, + 0x0402, 0x0482, 0x0502, 0x0582, + 0x05E2, 0x0662, 0x06E2, 0x0762, + 0x07E2, 0x0842, 0x08C2, 0x0942, /* 16 */ + 0x09C2, 0x0A22, 0x0AA2, 0x0B02, + 0x0B82, 0x0BE2, 0x0C62, 0x0CC2, + 0x0D42, 0x0DA2, 0x0E02, 0x0E62, + 0x0EE2, 0x0F42, 0x0FA2, 0x1002, /* 32 */ + 0x1062, 0x10C2, 0x1122, 0x1182, + 0x11E2, 0x1242, 0x12A2, 0x12E2, + 0x1342, 0x13A2, 0x1402, 0x1442, + 0x14A2, 0x14E2, 0x1542, 0x1582, /* 48 */ + 0x15E2, 0x1622, 0x1662, 0x16C1, + 0x1701, 0x1741, 0x1781, 0x17E1, + 0x1821, 0x1861, 0x18A1, 0x18E1, + 0x1921, 0x1961, 0x19A1, 0x19E1, /* 64 */ + 0x1A21, 0x1A61, 0x1AA1, 0x1AC1, + 0x1B01, 0x1B41, 0x1B81, 0x1BA1, + 0x1BE1, 0x1C21, 0x1C41, 0x1C81, + 0x1CA1, 0x1CE1, 0x1D01, 0x1D41, /* 80 */ + 0x1D61, 0x1DA1, 0x1DC1, 0x1E01, + 0x1E21, 0x1E61, 0x1E81, 0x1EA1, + 0x1EE1, 0x1F01, 0x1F21, 0x1F41, + 0x1F81, 0x1FA1, 0x1FC1, 0x1FE1, /* 96 */ + 0x2001, 0x2041, 0x2061, 0x2081, + 0x20A1, 0x20C1, 0x20E1, 0x2101, + 0x2121, 0x2141, 0x2161, 0x2181, + 0x21A1, 0x21C1, 0x21E1, 0x2201, /* 112 */ + 0x2221, 0x2241, 0x2261, 0x2281, + 0x22A1, 0x22C1, 0x22C1, 0x22E1, + 0x2301, 0x2321, 0x2341, 0x2361, + 0x2361, 0x2381, 0x23A1, 0x23C1, /* 128 */ + 0x23E1, 0x23E1, 0x2401, 0x2421, + 0x2441, 0x2441, 0x2461, 0x2481, + 0x2481, 0x24A1, 0x24C1, 0x24C1, + 0x24E1, 0x2501, 0x2501, 0x2521, /* 144 */ + 0x2541, 0x2541, 0x2561, 0x2561, + 0x2581, 0x25A1, 0x25A1, 0x25C1, + 0x25C1, 0x25E1, 0x2601, 0x2601, + 0x2621, 0x2621, 0x2641, 0x2641, /* 160 */ + 0x2661, 0x2661, 0x2681, 0x2681, + 0x26A1, 0x26A1, 0x26C1, 0x26C1, + 0x26E1, 0x26E1, 0x2701, 0x2701, + 0x2721, 0x2721, 0x2740, 0x2740, /* 176 */ + 0x2760, 0x2760, 0x2780, 0x2780, + 0x2780, 0x27A0, 0x27A0, 0x27C0, + 0x27C0, 0x27E0, 0x27E0, 0x27E0, + 0x2800, 0x2800, 0x2820, 0x2820, /* 192 */ + 0x2820, 0x2840, 0x2840, 0x2840, + 0x2860, 0x2860, 0x2880, 0x2880, + 0x2880, 0x28A0, 0x28A0, 0x28A0, + 0x28C0, 0x28C0, 0x28C0, 0x28E0, /* 208 */ + 0x28E0, 0x28E0, 0x2900, 0x2900, + 0x2900, 0x2920, 0x2920, 0x2920, + 0x2940, 0x2940, 0x2940, 0x2960, + 0x2960, 0x2960, 0x2960, 0x2980, /* 224 */ + 0x2980, 0x2980, 0x29A0, 0x29A0, + 0x29A0, 0x29A0, 0x29C0, 0x29C0, + 0x29C0, 0x29E0, 0x29E0, 0x29E0, + 0x29E0, 0x2A00, 0x2A00, 0x2A00, /* 240 */ + 0x2A00, 0x2A20, 0x2A20, 0x2A20, + 0x2A20, 0x2A40, 0x2A40, 0x2A40, + 0x2A40, 0x2A60, 0x2A60, 0x2A60, +}; + +const u16 b43_tab_finefreqg[] = { + 0x0089, 0x02E9, 0x0409, 0x04E9, /* 0 */ + 0x05A9, 0x0669, 0x0709, 0x0789, + 0x0829, 0x08A9, 0x0929, 0x0989, + 0x0A09, 0x0A69, 0x0AC9, 0x0B29, + 0x0BA9, 0x0BE9, 0x0C49, 0x0CA9, /* 16 */ + 0x0D09, 0x0D69, 0x0DA9, 0x0E09, + 0x0E69, 0x0EA9, 0x0F09, 0x0F49, + 0x0FA9, 0x0FE9, 0x1029, 0x1089, + 0x10C9, 0x1109, 0x1169, 0x11A9, /* 32 */ + 0x11E9, 0x1229, 0x1289, 0x12C9, + 0x1309, 0x1349, 0x1389, 0x13C9, + 0x1409, 0x1449, 0x14A9, 0x14E9, + 0x1529, 0x1569, 0x15A9, 0x15E9, /* 48 */ + 0x1629, 0x1669, 0x16A9, 0x16E8, + 0x1728, 0x1768, 0x17A8, 0x17E8, + 0x1828, 0x1868, 0x18A8, 0x18E8, + 0x1928, 0x1968, 0x19A8, 0x19E8, /* 64 */ + 0x1A28, 0x1A68, 0x1AA8, 0x1AE8, + 0x1B28, 0x1B68, 0x1BA8, 0x1BE8, + 0x1C28, 0x1C68, 0x1CA8, 0x1CE8, + 0x1D28, 0x1D68, 0x1DC8, 0x1E08, /* 80 */ + 0x1E48, 0x1E88, 0x1EC8, 0x1F08, + 0x1F48, 0x1F88, 0x1FE8, 0x2028, + 0x2068, 0x20A8, 0x2108, 0x2148, + 0x2188, 0x21C8, 0x2228, 0x2268, /* 96 */ + 0x22C8, 0x2308, 0x2348, 0x23A8, + 0x23E8, 0x2448, 0x24A8, 0x24E8, + 0x2548, 0x25A8, 0x2608, 0x2668, + 0x26C8, 0x2728, 0x2787, 0x27E7, /* 112 */ + 0x2847, 0x28C7, 0x2947, 0x29A7, + 0x2A27, 0x2AC7, 0x2B47, 0x2BE7, + 0x2CA7, 0x2D67, 0x2E47, 0x2F67, + 0x3247, 0x3526, 0x3646, 0x3726, /* 128 */ + 0x3806, 0x38A6, 0x3946, 0x39E6, + 0x3A66, 0x3AE6, 0x3B66, 0x3BC6, + 0x3C45, 0x3CA5, 0x3D05, 0x3D85, + 0x3DE5, 0x3E45, 0x3EA5, 0x3EE5, /* 144 */ + 0x3F45, 0x3FA5, 0x4005, 0x4045, + 0x40A5, 0x40E5, 0x4145, 0x4185, + 0x41E5, 0x4225, 0x4265, 0x42C5, + 0x4305, 0x4345, 0x43A5, 0x43E5, /* 160 */ + 0x4424, 0x4464, 0x44C4, 0x4504, + 0x4544, 0x4584, 0x45C4, 0x4604, + 0x4644, 0x46A4, 0x46E4, 0x4724, + 0x4764, 0x47A4, 0x47E4, 0x4824, /* 176 */ + 0x4864, 0x48A4, 0x48E4, 0x4924, + 0x4964, 0x49A4, 0x49E4, 0x4A24, + 0x4A64, 0x4AA4, 0x4AE4, 0x4B23, + 0x4B63, 0x4BA3, 0x4BE3, 0x4C23, /* 192 */ + 0x4C63, 0x4CA3, 0x4CE3, 0x4D23, + 0x4D63, 0x4DA3, 0x4DE3, 0x4E23, + 0x4E63, 0x4EA3, 0x4EE3, 0x4F23, + 0x4F63, 0x4FC3, 0x5003, 0x5043, /* 208 */ + 0x5083, 0x50C3, 0x5103, 0x5143, + 0x5183, 0x51E2, 0x5222, 0x5262, + 0x52A2, 0x52E2, 0x5342, 0x5382, + 0x53C2, 0x5402, 0x5462, 0x54A2, /* 224 */ + 0x5502, 0x5542, 0x55A2, 0x55E2, + 0x5642, 0x5682, 0x56E2, 0x5722, + 0x5782, 0x57E1, 0x5841, 0x58A1, + 0x5901, 0x5961, 0x59C1, 0x5A21, /* 240 */ + 0x5AA1, 0x5B01, 0x5B81, 0x5BE1, + 0x5C61, 0x5D01, 0x5D80, 0x5E20, + 0x5EE0, 0x5FA0, 0x6080, 0x61C0, +}; + +const u16 b43_tab_noisea2[] = { + 0x0001, 0x0001, 0x0001, 0xFFFE, + 0xFFFE, 0x3FFF, 0x1000, 0x0393, +}; + +const u16 b43_tab_noisea3[] = { + 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36, + 0x4C4C, 0x4C4C, 0x4C4C, 0x2D36, +}; + +const u16 b43_tab_noiseg1[] = { + 0x013C, 0x01F5, 0x031A, 0x0631, + 0x0001, 0x0001, 0x0001, 0x0001, +}; + +const u16 b43_tab_noiseg2[] = { + 0x5484, 0x3C40, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, +}; + +const u16 b43_tab_noisescaleg1[] = { + 0x6C77, 0x5162, 0x3B40, 0x3335, /* 0 */ + 0x2F2D, 0x2A2A, 0x2527, 0x1F21, + 0x1A1D, 0x1719, 0x1616, 0x1414, + 0x1414, 0x1400, 0x1414, 0x1614, + 0x1716, 0x1A19, 0x1F1D, 0x2521, /* 16 */ + 0x2A27, 0x2F2A, 0x332D, 0x3B35, + 0x5140, 0x6C62, 0x0077, +}; + +const u16 b43_tab_noisescaleg2[] = { + 0xD8DD, 0xCBD4, 0xBCC0, 0XB6B7, /* 0 */ + 0xB2B0, 0xADAD, 0xA7A9, 0x9FA1, + 0x969B, 0x9195, 0x8F8F, 0x8A8A, + 0x8A8A, 0x8A00, 0x8A8A, 0x8F8A, + 0x918F, 0x9695, 0x9F9B, 0xA7A1, /* 16 */ + 0xADA9, 0xB2AD, 0xB6B0, 0xBCB7, + 0xCBC0, 0xD8D4, 0x00DD, +}; + +const u16 b43_tab_noisescaleg3[] = { + 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 0 */ + 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, + 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, + 0xA4A4, 0xA400, 0xA4A4, 0xA4A4, + 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, /* 16 */ + 0xA4A4, 0xA4A4, 0xA4A4, 0xA4A4, + 0xA4A4, 0xA4A4, 0x00A4, +}; + +const u16 b43_tab_sigmasqr1[] = { + 0x007A, 0x0075, 0x0071, 0x006C, /* 0 */ + 0x0067, 0x0063, 0x005E, 0x0059, + 0x0054, 0x0050, 0x004B, 0x0046, + 0x0042, 0x003D, 0x003D, 0x003D, + 0x003D, 0x003D, 0x003D, 0x003D, /* 16 */ + 0x003D, 0x003D, 0x003D, 0x003D, + 0x003D, 0x003D, 0x0000, 0x003D, + 0x003D, 0x003D, 0x003D, 0x003D, + 0x003D, 0x003D, 0x003D, 0x003D, /* 32 */ + 0x003D, 0x003D, 0x003D, 0x003D, + 0x0042, 0x0046, 0x004B, 0x0050, + 0x0054, 0x0059, 0x005E, 0x0063, + 0x0067, 0x006C, 0x0071, 0x0075, /* 48 */ + 0x007A, +}; + +const u16 b43_tab_sigmasqr2[] = { + 0x00DE, 0x00DC, 0x00DA, 0x00D8, /* 0 */ + 0x00D6, 0x00D4, 0x00D2, 0x00CF, + 0x00CD, 0x00CA, 0x00C7, 0x00C4, + 0x00C1, 0x00BE, 0x00BE, 0x00BE, + 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 16 */ + 0x00BE, 0x00BE, 0x00BE, 0x00BE, + 0x00BE, 0x00BE, 0x0000, 0x00BE, + 0x00BE, 0x00BE, 0x00BE, 0x00BE, + 0x00BE, 0x00BE, 0x00BE, 0x00BE, /* 32 */ + 0x00BE, 0x00BE, 0x00BE, 0x00BE, + 0x00C1, 0x00C4, 0x00C7, 0x00CA, + 0x00CD, 0x00CF, 0x00D2, 0x00D4, + 0x00D6, 0x00D8, 0x00DA, 0x00DC, /* 48 */ + 0x00DE, +}; + +static inline void assert_sizes(void) +{ + BUILD_BUG_ON(B43_TAB_ROTOR_SIZE != ARRAY_SIZE(b43_tab_rotor)); + BUILD_BUG_ON(B43_TAB_RETARD_SIZE != ARRAY_SIZE(b43_tab_retard)); + BUILD_BUG_ON(B43_TAB_FINEFREQA_SIZE != ARRAY_SIZE(b43_tab_finefreqa)); + BUILD_BUG_ON(B43_TAB_FINEFREQG_SIZE != ARRAY_SIZE(b43_tab_finefreqg)); + BUILD_BUG_ON(B43_TAB_NOISEA2_SIZE != ARRAY_SIZE(b43_tab_noisea2)); + BUILD_BUG_ON(B43_TAB_NOISEA3_SIZE != ARRAY_SIZE(b43_tab_noisea3)); + BUILD_BUG_ON(B43_TAB_NOISEG1_SIZE != ARRAY_SIZE(b43_tab_noiseg1)); + BUILD_BUG_ON(B43_TAB_NOISEG2_SIZE != ARRAY_SIZE(b43_tab_noiseg2)); + BUILD_BUG_ON(B43_TAB_NOISESCALEG_SIZE != + ARRAY_SIZE(b43_tab_noisescaleg1)); + BUILD_BUG_ON(B43_TAB_NOISESCALEG_SIZE != + ARRAY_SIZE(b43_tab_noisescaleg2)); + BUILD_BUG_ON(B43_TAB_NOISESCALEG_SIZE != + ARRAY_SIZE(b43_tab_noisescaleg3)); + BUILD_BUG_ON(B43_TAB_SIGMASQR_SIZE != ARRAY_SIZE(b43_tab_sigmasqr1)); + BUILD_BUG_ON(B43_TAB_SIGMASQR_SIZE != ARRAY_SIZE(b43_tab_sigmasqr2)); +} + +u16 b43_ofdmtab_read16(struct b43_wldev *dev, u16 table, u16 offset) +{ + assert_sizes(); + + b43_phy_write(dev, B43_PHY_OTABLECTL, table + offset); + return b43_phy_read(dev, B43_PHY_OTABLEI); +} + +void b43_ofdmtab_write16(struct b43_wldev *dev, u16 table, + u16 offset, u16 value) +{ + b43_phy_write(dev, B43_PHY_OTABLECTL, table + offset); + b43_phy_write(dev, B43_PHY_OTABLEI, value); +} + +u32 b43_ofdmtab_read32(struct b43_wldev *dev, u16 table, u16 offset) +{ + u32 ret; + + b43_phy_write(dev, B43_PHY_OTABLECTL, table + offset); + ret = b43_phy_read(dev, B43_PHY_OTABLEQ); + ret <<= 16; + ret |= b43_phy_read(dev, B43_PHY_OTABLEI); + + return ret; +} + +void b43_ofdmtab_write32(struct b43_wldev *dev, u16 table, + u16 offset, u32 value) +{ + b43_phy_write(dev, B43_PHY_OTABLECTL, table + offset); + b43_phy_write(dev, B43_PHY_OTABLEI, value); + b43_phy_write(dev, B43_PHY_OTABLEQ, (value >> 16)); +} + +u16 b43_gtab_read(struct b43_wldev *dev, u16 table, u16 offset) +{ + b43_phy_write(dev, B43_PHY_GTABCTL, table + offset); + return b43_phy_read(dev, B43_PHY_GTABDATA); +} + +void b43_gtab_write(struct b43_wldev *dev, u16 table, u16 offset, u16 value) +{ + b43_phy_write(dev, B43_PHY_GTABCTL, table + offset); + b43_phy_write(dev, B43_PHY_GTABDATA, value); +} diff --git a/drivers/net/wireless/b43/tables.h b/drivers/net/wireless/b43/tables.h new file mode 100644 index 000000000000..64635d7b518c --- /dev/null +++ b/drivers/net/wireless/b43/tables.h @@ -0,0 +1,28 @@ +#ifndef B43_TABLES_H_ +#define B43_TABLES_H_ + +#define B43_TAB_ROTOR_SIZE 53 +extern const u32 b43_tab_rotor[]; +#define B43_TAB_RETARD_SIZE 53 +extern const u32 b43_tab_retard[]; +#define B43_TAB_FINEFREQA_SIZE 256 +extern const u16 b43_tab_finefreqa[]; +#define B43_TAB_FINEFREQG_SIZE 256 +extern const u16 b43_tab_finefreqg[]; +#define B43_TAB_NOISEA2_SIZE 8 +extern const u16 b43_tab_noisea2[]; +#define B43_TAB_NOISEA3_SIZE 8 +extern const u16 b43_tab_noisea3[]; +#define B43_TAB_NOISEG1_SIZE 8 +extern const u16 b43_tab_noiseg1[]; +#define B43_TAB_NOISEG2_SIZE 8 +extern const u16 b43_tab_noiseg2[]; +#define B43_TAB_NOISESCALEG_SIZE 27 +extern const u16 b43_tab_noisescaleg1[]; +extern const u16 b43_tab_noisescaleg2[]; +extern const u16 b43_tab_noisescaleg3[]; +#define B43_TAB_SIGMASQR_SIZE 53 +extern const u16 b43_tab_sigmasqr1[]; +extern const u16 b43_tab_sigmasqr2[]; + +#endif /* B43_TABLES_H_ */ diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c new file mode 100644 index 000000000000..e6174b6f11fb --- /dev/null +++ b/drivers/net/wireless/b43/xmit.c @@ -0,0 +1,648 @@ +/* + + Broadcom B43 wireless driver + + Transmission (TX/RX) related functions. + + Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> + Copyright (C) 2005 Stefano Brivio <st3@riseup.net> + Copyright (C) 2005, 2006 Michael Buesch <mb@bu3sch.de> + Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> + Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, + Boston, MA 02110-1301, USA. + +*/ + +#include "xmit.h" +#include "phy.h" +#include "dma.h" +#include "pio.h" + +/* Extract the bitrate out of a CCK PLCP header. */ +static u8 b43_plcp_get_bitrate_cck(struct b43_plcp_hdr6 *plcp) +{ + switch (plcp->raw[0]) { + case 0x0A: + return B43_CCK_RATE_1MB; + case 0x14: + return B43_CCK_RATE_2MB; + case 0x37: + return B43_CCK_RATE_5MB; + case 0x6E: + return B43_CCK_RATE_11MB; + } + B43_WARN_ON(1); + return 0; +} + +/* Extract the bitrate out of an OFDM PLCP header. */ +static u8 b43_plcp_get_bitrate_ofdm(struct b43_plcp_hdr6 *plcp) +{ + switch (plcp->raw[0] & 0xF) { + case 0xB: + return B43_OFDM_RATE_6MB; + case 0xF: + return B43_OFDM_RATE_9MB; + case 0xA: + return B43_OFDM_RATE_12MB; + case 0xE: + return B43_OFDM_RATE_18MB; + case 0x9: + return B43_OFDM_RATE_24MB; + case 0xD: + return B43_OFDM_RATE_36MB; + case 0x8: + return B43_OFDM_RATE_48MB; + case 0xC: + return B43_OFDM_RATE_54MB; + } + B43_WARN_ON(1); + return 0; +} + +u8 b43_plcp_get_ratecode_cck(const u8 bitrate) +{ + switch (bitrate) { + case B43_CCK_RATE_1MB: + return 0x0A; + case B43_CCK_RATE_2MB: + return 0x14; + case B43_CCK_RATE_5MB: + return 0x37; + case B43_CCK_RATE_11MB: + return 0x6E; + } + B43_WARN_ON(1); + return 0; +} + +u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate) +{ + switch (bitrate) { + case B43_OFDM_RATE_6MB: + return 0xB; + case B43_OFDM_RATE_9MB: + return 0xF; + case B43_OFDM_RATE_12MB: + return 0xA; + case B43_OFDM_RATE_18MB: + return 0xE; + case B43_OFDM_RATE_24MB: + return 0x9; + case B43_OFDM_RATE_36MB: + return 0xD; + case B43_OFDM_RATE_48MB: + return 0x8; + case B43_OFDM_RATE_54MB: + return 0xC; + } + B43_WARN_ON(1); + return 0; +} + +void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp, + const u16 octets, const u8 bitrate) +{ + __le32 *data = &(plcp->data); + __u8 *raw = plcp->raw; + + if (b43_is_ofdm_rate(bitrate)) { + *data = b43_plcp_get_ratecode_ofdm(bitrate); + B43_WARN_ON(octets & 0xF000); + *data |= (octets << 5); + *data = cpu_to_le32(*data); + } else { + u32 plen; + + plen = octets * 16 / bitrate; + if ((octets * 16 % bitrate) > 0) { + plen++; + if ((bitrate == B43_CCK_RATE_11MB) + && ((octets * 8 % 11) < 4)) { + raw[1] = 0x84; + } else + raw[1] = 0x04; + } else + raw[1] = 0x04; + *data |= cpu_to_le32(plen << 16); + raw[0] = b43_plcp_get_ratecode_cck(bitrate); + } +} + +static u8 b43_calc_fallback_rate(u8 bitrate) +{ + switch (bitrate) { + case B43_CCK_RATE_1MB: + return B43_CCK_RATE_1MB; + case B43_CCK_RATE_2MB: + return B43_CCK_RATE_1MB; + case B43_CCK_RATE_5MB: + return B43_CCK_RATE_2MB; + case B43_CCK_RATE_11MB: + return B43_CCK_RATE_5MB; + case B43_OFDM_RATE_6MB: + return B43_CCK_RATE_5MB; + case B43_OFDM_RATE_9MB: + return B43_OFDM_RATE_6MB; + case B43_OFDM_RATE_12MB: + return B43_OFDM_RATE_9MB; + case B43_OFDM_RATE_18MB: + return B43_OFDM_RATE_12MB; + case B43_OFDM_RATE_24MB: + return B43_OFDM_RATE_18MB; + case B43_OFDM_RATE_36MB: + return B43_OFDM_RATE_24MB; + case B43_OFDM_RATE_48MB: + return B43_OFDM_RATE_36MB; + case B43_OFDM_RATE_54MB: + return B43_OFDM_RATE_48MB; + } + B43_WARN_ON(1); + return 0; +} + +static void generate_txhdr_fw4(struct b43_wldev *dev, + struct b43_txhdr_fw4 *txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, + const struct ieee80211_tx_control *txctl, + u16 cookie) +{ + const struct b43_phy *phy = &dev->phy; + const struct ieee80211_hdr *wlhdr = + (const struct ieee80211_hdr *)fragment_data; + int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)); + u16 fctl = le16_to_cpu(wlhdr->frame_control); + u8 rate, rate_fb; + int rate_ofdm, rate_fb_ofdm; + unsigned int plcp_fragment_len; + u32 mac_ctl = 0; + u16 phy_ctl = 0; + u8 extra_ft = 0; + + memset(txhdr, 0, sizeof(*txhdr)); + + rate = txctl->tx_rate; + rate_ofdm = b43_is_ofdm_rate(rate); + rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate; + rate_fb_ofdm = b43_is_ofdm_rate(rate_fb); + + if (rate_ofdm) + txhdr->phy_rate = b43_plcp_get_ratecode_ofdm(rate); + else + txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate); + txhdr->mac_frame_ctl = wlhdr->frame_control; + memcpy(txhdr->tx_receiver, wlhdr->addr1, 6); + + /* Calculate duration for fallback rate */ + if ((rate_fb == rate) || + (wlhdr->duration_id & cpu_to_le16(0x8000)) || + (wlhdr->duration_id == cpu_to_le16(0))) { + /* If the fallback rate equals the normal rate or the + * dur_id field contains an AID, CFP magic or 0, + * use the original dur_id field. */ + txhdr->dur_fb = wlhdr->duration_id; + } else { + int fbrate_base100kbps = B43_RATE_TO_BASE100KBPS(rate_fb); + txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw, + dev->wl->if_id, + fragment_len, + fbrate_base100kbps); + } + + plcp_fragment_len = fragment_len + FCS_LEN; + if (use_encryption) { + u8 key_idx = (u16) (txctl->key_idx); + struct b43_key *key; + int wlhdr_len; + size_t iv_len; + + B43_WARN_ON(key_idx >= dev->max_nr_keys); + key = &(dev->key[key_idx]); + B43_WARN_ON(!key->keyconf); + + /* Hardware appends ICV. */ + plcp_fragment_len += txctl->icv_len; + + key_idx = b43_kidx_to_fw(dev, key_idx); + mac_ctl |= (key_idx << B43_TX4_MAC_KEYIDX_SHIFT) & + B43_TX4_MAC_KEYIDX; + mac_ctl |= (key->algorithm << B43_TX4_MAC_KEYALG_SHIFT) & + B43_TX4_MAC_KEYALG; + wlhdr_len = ieee80211_get_hdrlen(fctl); + iv_len = min((size_t) txctl->iv_len, + ARRAY_SIZE(txhdr->iv)); + memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len); + } + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp), + plcp_fragment_len, rate); + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp_fb), + plcp_fragment_len, rate_fb); + + /* Extra Frame Types */ + if (rate_fb_ofdm) + extra_ft |= B43_TX4_EFT_FBOFDM; + + /* Set channel radio code. Note that the micrcode ORs 0x100 to + * this value before comparing it to the value in SHM, if this + * is a 5Ghz packet. + */ + txhdr->chan_radio_code = phy->channel; + + /* PHY TX Control word */ + if (rate_ofdm) + phy_ctl |= B43_TX4_PHY_OFDM; + if (dev->short_preamble) + phy_ctl |= B43_TX4_PHY_SHORTPRMBL; + switch (txctl->antenna_sel_tx) { + case 0: + phy_ctl |= B43_TX4_PHY_ANTLAST; + break; + case 1: + phy_ctl |= B43_TX4_PHY_ANT0; + break; + case 2: + phy_ctl |= B43_TX4_PHY_ANT1; + break; + default: + B43_WARN_ON(1); + } + + /* MAC control */ + if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK)) + mac_ctl |= B43_TX4_MAC_ACK; + if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && + ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL))) + mac_ctl |= B43_TX4_MAC_HWSEQ; + if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT) + mac_ctl |= B43_TX4_MAC_STMSDU; + if (phy->type == B43_PHYTYPE_A) + mac_ctl |= B43_TX4_MAC_5GHZ; + + /* Generate the RTS or CTS-to-self frame */ + if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) || + (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) { + unsigned int len; + struct ieee80211_hdr *hdr; + int rts_rate, rts_rate_fb; + int rts_rate_ofdm, rts_rate_fb_ofdm; + + rts_rate = txctl->rts_cts_rate; + rts_rate_ofdm = b43_is_ofdm_rate(rts_rate); + rts_rate_fb = b43_calc_fallback_rate(rts_rate); + rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); + + if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { + ieee80211_ctstoself_get(dev->wl->hw, dev->wl->if_id, + fragment_data, fragment_len, + txctl, + (struct ieee80211_cts *)(txhdr-> + rts_frame)); + mac_ctl |= B43_TX4_MAC_SENDCTS; + len = sizeof(struct ieee80211_cts); + } else { + ieee80211_rts_get(dev->wl->hw, dev->wl->if_id, + fragment_data, fragment_len, txctl, + (struct ieee80211_rts *)(txhdr-> + rts_frame)); + mac_ctl |= B43_TX4_MAC_SENDRTS; + len = sizeof(struct ieee80211_rts); + } + len += FCS_LEN; + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr-> + rts_plcp), len, + rts_rate); + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr-> + rts_plcp_fb), + len, rts_rate_fb); + hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame); + txhdr->rts_dur_fb = hdr->duration_id; + if (rts_rate_ofdm) { + extra_ft |= B43_TX4_EFT_RTSOFDM; + txhdr->phy_rate_rts = + b43_plcp_get_ratecode_ofdm(rts_rate); + } else + txhdr->phy_rate_rts = + b43_plcp_get_ratecode_cck(rts_rate); + if (rts_rate_fb_ofdm) + extra_ft |= B43_TX4_EFT_RTSFBOFDM; + mac_ctl |= B43_TX4_MAC_LONGFRAME; + } + + /* Magic cookie */ + txhdr->cookie = cpu_to_le16(cookie); + + /* Apply the bitfields */ + txhdr->mac_ctl = cpu_to_le32(mac_ctl); + txhdr->phy_ctl = cpu_to_le16(phy_ctl); + txhdr->extra_ft = extra_ft; +} + +void b43_generate_txhdr(struct b43_wldev *dev, + u8 * txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, + const struct ieee80211_tx_control *txctl, u16 cookie) +{ + generate_txhdr_fw4(dev, (struct b43_txhdr_fw4 *)txhdr, + fragment_data, fragment_len, txctl, cookie); +} + +static s8 b43_rssi_postprocess(struct b43_wldev *dev, + u8 in_rssi, int ofdm, + int adjust_2053, int adjust_2050) +{ + struct b43_phy *phy = &dev->phy; + s32 tmp; + + switch (phy->radio_ver) { + case 0x2050: + if (ofdm) { + tmp = in_rssi; + if (tmp > 127) + tmp -= 256; + tmp *= 73; + tmp /= 64; + if (adjust_2050) + tmp += 25; + else + tmp -= 3; + } else { + if (dev->dev->bus->sprom.r1. + boardflags_lo & B43_BFL_RSSI) { + if (in_rssi > 63) + in_rssi = 63; + tmp = phy->nrssi_lt[in_rssi]; + tmp = 31 - tmp; + tmp *= -131; + tmp /= 128; + tmp -= 57; + } else { + tmp = in_rssi; + tmp = 31 - tmp; + tmp *= -149; + tmp /= 128; + tmp -= 68; + } + if (phy->type == B43_PHYTYPE_G && adjust_2050) + tmp += 25; + } + break; + case 0x2060: + if (in_rssi > 127) + tmp = in_rssi - 256; + else + tmp = in_rssi; + break; + default: + tmp = in_rssi; + tmp -= 11; + tmp *= 103; + tmp /= 64; + if (adjust_2053) + tmp -= 109; + else + tmp -= 83; + } + + return (s8) tmp; +} + +//TODO +#if 0 +static s8 b43_rssinoise_postprocess(struct b43_wldev *dev, u8 in_rssi) +{ + struct b43_phy *phy = &dev->phy; + s8 ret; + + if (phy->type == B43_PHYTYPE_A) { + //TODO: Incomplete specs. + ret = 0; + } else + ret = b43_rssi_postprocess(dev, in_rssi, 0, 1, 1); + + return ret; +} +#endif + +void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) +{ + struct ieee80211_rx_status status; + struct b43_plcp_hdr6 *plcp; + struct ieee80211_hdr *wlhdr; + const struct b43_rxhdr_fw4 *rxhdr = _rxhdr; + u16 fctl; + u16 phystat0, phystat3, chanstat, mactime; + u32 macstat; + u16 chanid; + u8 jssi; + int padding; + + memset(&status, 0, sizeof(status)); + + /* Get metadata about the frame from the header. */ + phystat0 = le16_to_cpu(rxhdr->phy_status0); + phystat3 = le16_to_cpu(rxhdr->phy_status3); + jssi = rxhdr->jssi; + macstat = le32_to_cpu(rxhdr->mac_status); + mactime = le16_to_cpu(rxhdr->mac_time); + chanstat = le16_to_cpu(rxhdr->channel); + + if (macstat & B43_RX_MAC_FCSERR) + dev->wl->ieee_stats.dot11FCSErrorCount++; + if (macstat & B43_RX_MAC_DECERR) { + /* Decryption with the given key failed. + * Drop the packet. We also won't be able to decrypt it with + * the key in software. */ + goto drop; + } + + /* Skip PLCP and padding */ + padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0; + if (unlikely(skb->len < (sizeof(struct b43_plcp_hdr6) + padding))) { + b43dbg(dev->wl, "RX: Packet size underrun (1)\n"); + goto drop; + } + plcp = (struct b43_plcp_hdr6 *)(skb->data + padding); + skb_pull(skb, sizeof(struct b43_plcp_hdr6) + padding); + /* The skb contains the Wireless Header + payload data now */ + if (unlikely(skb->len < (2 + 2 + 6 /*minimum hdr */ + FCS_LEN))) { + b43dbg(dev->wl, "RX: Packet size underrun (2)\n"); + goto drop; + } + wlhdr = (struct ieee80211_hdr *)(skb->data); + fctl = le16_to_cpu(wlhdr->frame_control); + skb_trim(skb, skb->len - FCS_LEN); + + if (macstat & B43_RX_MAC_DEC) { + unsigned int keyidx; + int wlhdr_len; + + keyidx = ((macstat & B43_RX_MAC_KEYIDX) + >> B43_RX_MAC_KEYIDX_SHIFT); + /* We must adjust the key index here. We want the "physical" + * key index, but the ucode passed it slightly different. + */ + keyidx = b43_kidx_to_raw(dev, keyidx); + B43_WARN_ON(keyidx >= dev->max_nr_keys); + + if (dev->key[keyidx].algorithm != B43_SEC_ALGO_NONE) { + wlhdr_len = ieee80211_get_hdrlen(fctl); + if (unlikely(skb->len < (wlhdr_len + 3))) { + b43dbg(dev->wl, + "RX: Packet size underrun (3)\n"); + goto drop; + } + status.flag |= RX_FLAG_DECRYPTED; + } + } + + status.ssi = b43_rssi_postprocess(dev, jssi, + (phystat0 & B43_RX_PHYST0_OFDM), + (phystat0 & B43_RX_PHYST0_GAINCTL), + (phystat3 & B43_RX_PHYST3_TRSTATE)); + status.noise = dev->stats.link_noise; + /* the next line looks wrong, but is what mac80211 wants */ + status.signal = (jssi * 100) / B43_RX_MAX_SSI; + if (phystat0 & B43_RX_PHYST0_OFDM) + status.rate = b43_plcp_get_bitrate_ofdm(plcp); + else + status.rate = b43_plcp_get_bitrate_cck(plcp); + status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT); + status.mactime = mactime; + + chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT; + switch (chanstat & B43_RX_CHAN_PHYTYPE) { + case B43_PHYTYPE_A: + status.phymode = MODE_IEEE80211A; + status.freq = chanid; + status.channel = b43_freq_to_channel_a(chanid); + break; + case B43_PHYTYPE_B: + status.phymode = MODE_IEEE80211B; + status.freq = chanid + 2400; + status.channel = b43_freq_to_channel_bg(chanid + 2400); + break; + case B43_PHYTYPE_G: + status.phymode = MODE_IEEE80211G; + status.freq = chanid + 2400; + status.channel = b43_freq_to_channel_bg(chanid + 2400); + break; + default: + B43_WARN_ON(1); + } + + dev->stats.last_rx = jiffies; + ieee80211_rx_irqsafe(dev->wl->hw, skb, &status); + + return; +drop: + b43dbg(dev->wl, "RX: Packet dropped\n"); + dev_kfree_skb_any(skb); +} + +void b43_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status) +{ + b43_debugfs_log_txstat(dev, status); + + if (status->intermediate) + return; + if (status->for_ampdu) + return; + if (!status->acked) + dev->wl->ieee_stats.dot11ACKFailureCount++; + if (status->rts_count) { + if (status->rts_count == 0xF) //FIXME + dev->wl->ieee_stats.dot11RTSFailureCount++; + else + dev->wl->ieee_stats.dot11RTSSuccessCount++; + } + + if (b43_using_pio(dev)) + b43_pio_handle_txstatus(dev, status); + else + b43_dma_handle_txstatus(dev, status); +} + +/* Handle TX status report as received through DMA/PIO queues */ +void b43_handle_hwtxstatus(struct b43_wldev *dev, + const struct b43_hwtxstatus *hw) +{ + struct b43_txstatus status; + u8 tmp; + + status.cookie = le16_to_cpu(hw->cookie); + status.seq = le16_to_cpu(hw->seq); + status.phy_stat = hw->phy_stat; + tmp = hw->count; + status.frame_count = (tmp >> 4); + status.rts_count = (tmp & 0x0F); + tmp = hw->flags; + status.supp_reason = ((tmp & 0x1C) >> 2); + status.pm_indicated = !!(tmp & 0x80); + status.intermediate = !!(tmp & 0x40); + status.for_ampdu = !!(tmp & 0x20); + status.acked = !!(tmp & 0x02); + + b43_handle_txstatus(dev, &status); +} + +/* Stop any TX operation on the device (suspend the hardware queues) */ +void b43_tx_suspend(struct b43_wldev *dev) +{ + if (b43_using_pio(dev)) + b43_pio_freeze_txqueues(dev); + else + b43_dma_tx_suspend(dev); +} + +/* Resume any TX operation on the device (resume the hardware queues) */ +void b43_tx_resume(struct b43_wldev *dev) +{ + if (b43_using_pio(dev)) + b43_pio_thaw_txqueues(dev); + else + b43_dma_tx_resume(dev); +} + +#if 0 +static void upload_qos_parms(struct b43_wldev *dev, + const u16 * parms, u16 offset) +{ + int i; + + for (i = 0; i < B43_NR_QOSPARMS; i++) { + b43_shm_write16(dev, B43_SHM_SHARED, + offset + (i * 2), parms[i]); + } +} +#endif + +/* Initialize the QoS parameters */ +void b43_qos_init(struct b43_wldev *dev) +{ + /* FIXME: This function must probably be called from the mac80211 + * config callback. */ + return; + + b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); + //FIXME kill magic + b43_write16(dev, 0x688, b43_read16(dev, 0x688) | 0x4); + + /*TODO: We might need some stack support here to get the values. */ +} diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h new file mode 100644 index 000000000000..03bddd251618 --- /dev/null +++ b/drivers/net/wireless/b43/xmit.h @@ -0,0 +1,250 @@ +#ifndef B43_XMIT_H_ +#define B43_XMIT_H_ + +#include "main.h" + +#define _b43_declare_plcp_hdr(size) \ + struct b43_plcp_hdr##size { \ + union { \ + __le32 data; \ + __u8 raw[size]; \ + } __attribute__((__packed__)); \ + } __attribute__((__packed__)) + +/* struct b43_plcp_hdr4 */ +_b43_declare_plcp_hdr(4); +/* struct b43_plcp_hdr6 */ +_b43_declare_plcp_hdr(6); + +#undef _b43_declare_plcp_hdr + +/* TX header for v4 firmware */ +struct b43_txhdr_fw4 { + __le32 mac_ctl; /* MAC TX control */ + __le16 mac_frame_ctl; /* Copy of the FrameControl field */ + __le16 tx_fes_time_norm; /* TX FES Time Normal */ + __le16 phy_ctl; /* PHY TX control */ + __le16 phy_ctl_0; /* Unused */ + __le16 phy_ctl_1; /* Unused */ + __le16 phy_ctl_rts_0; /* Unused */ + __le16 phy_ctl_rts_1; /* Unused */ + __u8 phy_rate; /* PHY rate */ + __u8 phy_rate_rts; /* PHY rate for RTS/CTS */ + __u8 extra_ft; /* Extra Frame Types */ + __u8 chan_radio_code; /* Channel Radio Code */ + __u8 iv[16]; /* Encryption IV */ + __u8 tx_receiver[6]; /* TX Frame Receiver address */ + __le16 tx_fes_time_fb; /* TX FES Time Fallback */ + struct b43_plcp_hdr6 rts_plcp_fb; /* RTS fallback PLCP */ + __le16 rts_dur_fb; /* RTS fallback duration */ + struct b43_plcp_hdr6 plcp_fb; /* Fallback PLCP */ + __le16 dur_fb; /* Fallback duration */ + __le16 mm_dur_time; /* Unused */ + __le16 mm_dur_time_fb; /* Unused */ + __le32 time_stamp; /* Timestamp */ + PAD_BYTES(2); + __le16 cookie; /* TX frame cookie */ + __le16 tx_status; /* TX status */ + struct b43_plcp_hdr6 rts_plcp; /* RTS PLCP */ + __u8 rts_frame[16]; /* The RTS frame (if used) */ + PAD_BYTES(2); + struct b43_plcp_hdr6 plcp; /* Main PLCP */ +} __attribute__ ((__packed__)); + +/* MAC TX control */ +#define B43_TX4_MAC_KEYIDX 0x0FF00000 /* Security key index */ +#define B43_TX4_MAC_KEYIDX_SHIFT 20 +#define B43_TX4_MAC_KEYALG 0x00070000 /* Security key algorithm */ +#define B43_TX4_MAC_KEYALG_SHIFT 16 +#define B43_TX4_MAC_LIFETIME 0x00001000 +#define B43_TX4_MAC_FRAMEBURST 0x00000800 +#define B43_TX4_MAC_SENDCTS 0x00000400 +#define B43_TX4_MAC_AMPDU 0x00000300 +#define B43_TX4_MAC_AMPDU_SHIFT 8 +#define B43_TX4_MAC_5GHZ 0x00000080 +#define B43_TX4_MAC_IGNPMQ 0x00000020 +#define B43_TX4_MAC_HWSEQ 0x00000010 /* Use Hardware Sequence Number */ +#define B43_TX4_MAC_STMSDU 0x00000008 /* Start MSDU */ +#define B43_TX4_MAC_SENDRTS 0x00000004 +#define B43_TX4_MAC_LONGFRAME 0x00000002 +#define B43_TX4_MAC_ACK 0x00000001 + +/* Extra Frame Types */ +#define B43_TX4_EFT_FBOFDM 0x0001 /* Data frame fallback rate type */ +#define B43_TX4_EFT_RTSOFDM 0x0004 /* RTS/CTS rate type */ +#define B43_TX4_EFT_RTSFBOFDM 0x0010 /* RTS/CTS fallback rate type */ + +/* PHY TX control word */ +#define B43_TX4_PHY_OFDM 0x0001 /* Data frame rate type */ +#define B43_TX4_PHY_SHORTPRMBL 0x0010 /* Use short preamble */ +#define B43_TX4_PHY_ANT 0x03C0 /* Antenna selection */ +#define B43_TX4_PHY_ANT0 0x0000 /* Use antenna 0 */ +#define B43_TX4_PHY_ANT1 0x0100 /* Use antenna 1 */ +#define B43_TX4_PHY_ANTLAST 0x0300 /* Use last used antenna */ + +void b43_generate_txhdr(struct b43_wldev *dev, + u8 * txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, + const struct ieee80211_tx_control *txctl, u16 cookie); + +/* Transmit Status */ +struct b43_txstatus { + u16 cookie; /* The cookie from the txhdr */ + u16 seq; /* Sequence number */ + u8 phy_stat; /* PHY TX status */ + u8 frame_count; /* Frame transmit count */ + u8 rts_count; /* RTS transmit count */ + u8 supp_reason; /* Suppression reason */ + /* flags */ + u8 pm_indicated; /* PM mode indicated to AP */ + u8 intermediate; /* Intermediate status notification (not final) */ + u8 for_ampdu; /* Status is for an AMPDU (afterburner) */ + u8 acked; /* Wireless ACK received */ +}; + +/* txstatus supp_reason values */ +enum { + B43_TXST_SUPP_NONE, /* Not suppressed */ + B43_TXST_SUPP_PMQ, /* Suppressed due to PMQ entry */ + B43_TXST_SUPP_FLUSH, /* Suppressed due to flush request */ + B43_TXST_SUPP_PREV, /* Previous fragment failed */ + B43_TXST_SUPP_CHAN, /* Channel mismatch */ + B43_TXST_SUPP_LIFE, /* Lifetime expired */ + B43_TXST_SUPP_UNDER, /* Buffer underflow */ + B43_TXST_SUPP_ABNACK, /* Afterburner NACK */ +}; + +/* Transmit Status as received through DMA/PIO on old chips */ +struct b43_hwtxstatus { + PAD_BYTES(4); + __le16 cookie; + u8 flags; + u8 count; + PAD_BYTES(2); + __le16 seq; + u8 phy_stat; + PAD_BYTES(1); +} __attribute__ ((__packed__)); + +/* Receive header for v4 firmware. */ +struct b43_rxhdr_fw4 { + __le16 frame_len; /* Frame length */ + PAD_BYTES(2); + __le16 phy_status0; /* PHY RX Status 0 */ + __u8 jssi; /* PHY RX Status 1: JSSI */ + __u8 sig_qual; /* PHY RX Status 1: Signal Quality */ + __le16 phy_status2; /* PHY RX Status 2 */ + __le16 phy_status3; /* PHY RX Status 3 */ + __le32 mac_status; /* MAC RX status */ + __le16 mac_time; + __le16 channel; +} __attribute__ ((__packed__)); + +/* PHY RX Status 0 */ +#define B43_RX_PHYST0_GAINCTL 0x4000 /* Gain Control */ +#define B43_RX_PHYST0_PLCPHCF 0x0200 +#define B43_RX_PHYST0_PLCPFV 0x0100 +#define B43_RX_PHYST0_SHORTPRMBL 0x0080 /* Received with Short Preamble */ +#define B43_RX_PHYST0_LCRS 0x0040 +#define B43_RX_PHYST0_ANT 0x0020 /* Antenna */ +#define B43_RX_PHYST0_UNSRATE 0x0010 +#define B43_RX_PHYST0_CLIP 0x000C +#define B43_RX_PHYST0_CLIP_SHIFT 2 +#define B43_RX_PHYST0_FTYPE 0x0003 /* Frame type */ +#define B43_RX_PHYST0_CCK 0x0000 /* Frame type: CCK */ +#define B43_RX_PHYST0_OFDM 0x0001 /* Frame type: OFDM */ +#define B43_RX_PHYST0_PRE_N 0x0002 /* Pre-standard N-PHY frame */ +#define B43_RX_PHYST0_STD_N 0x0003 /* Standard N-PHY frame */ + +/* PHY RX Status 2 */ +#define B43_RX_PHYST2_LNAG 0xC000 /* LNA Gain */ +#define B43_RX_PHYST2_LNAG_SHIFT 14 +#define B43_RX_PHYST2_PNAG 0x3C00 /* PNA Gain */ +#define B43_RX_PHYST2_PNAG_SHIFT 10 +#define B43_RX_PHYST2_FOFF 0x03FF /* F offset */ + +/* PHY RX Status 3 */ +#define B43_RX_PHYST3_DIGG 0x1800 /* DIG Gain */ +#define B43_RX_PHYST3_DIGG_SHIFT 11 +#define B43_RX_PHYST3_TRSTATE 0x0400 /* TR state */ + +/* MAC RX Status */ +#define B43_RX_MAC_BEACONSENT 0x00008000 /* Beacon send flag */ +#define B43_RX_MAC_KEYIDX 0x000007E0 /* Key index */ +#define B43_RX_MAC_KEYIDX_SHIFT 5 +#define B43_RX_MAC_DECERR 0x00000010 /* Decrypt error */ +#define B43_RX_MAC_DEC 0x00000008 /* Decryption attempted */ +#define B43_RX_MAC_PADDING 0x00000004 /* Pad bytes present */ +#define B43_RX_MAC_RESP 0x00000002 /* Response frame transmitted */ +#define B43_RX_MAC_FCSERR 0x00000001 /* FCS error */ + +/* RX channel */ +#define B43_RX_CHAN_GAIN 0xFC00 /* Gain */ +#define B43_RX_CHAN_GAIN_SHIFT 10 +#define B43_RX_CHAN_ID 0x03FC /* Channel ID */ +#define B43_RX_CHAN_ID_SHIFT 2 +#define B43_RX_CHAN_PHYTYPE 0x0003 /* PHY type */ + +u8 b43_plcp_get_ratecode_cck(const u8 bitrate); +u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate); + +void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp, + const u16 octets, const u8 bitrate); + +void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr); + +void b43_handle_txstatus(struct b43_wldev *dev, + const struct b43_txstatus *status); + +void b43_handle_hwtxstatus(struct b43_wldev *dev, + const struct b43_hwtxstatus *hw); + +void b43_tx_suspend(struct b43_wldev *dev); +void b43_tx_resume(struct b43_wldev *dev); + +#define B43_NR_QOSPARMS 22 +enum { + B43_QOSPARM_TXOP = 0, + B43_QOSPARM_CWMIN, + B43_QOSPARM_CWMAX, + B43_QOSPARM_CWCUR, + B43_QOSPARM_AIFS, + B43_QOSPARM_BSLOTS, + B43_QOSPARM_REGGAP, + B43_QOSPARM_STATUS, +}; +void b43_qos_init(struct b43_wldev *dev); + +/* Helper functions for converting the key-table index from "firmware-format" + * to "raw-format" and back. The firmware API changed for this at some revision. + * We need to account for that here. */ +static inline int b43_new_kidx_api(struct b43_wldev *dev) +{ + /* FIXME: Not sure the change was at rev 351 */ + return (dev->fw.rev >= 351); +} +static inline u8 b43_kidx_to_fw(struct b43_wldev *dev, u8 raw_kidx) +{ + u8 firmware_kidx; + if (b43_new_kidx_api(dev)) { + firmware_kidx = raw_kidx; + } else { + if (raw_kidx >= 4) /* Is per STA key? */ + firmware_kidx = raw_kidx - 4; + else + firmware_kidx = raw_kidx; /* TX default key */ + } + return firmware_kidx; +} +static inline u8 b43_kidx_to_raw(struct b43_wldev *dev, u8 firmware_kidx) +{ + u8 raw_kidx; + if (b43_new_kidx_api(dev)) + raw_kidx = firmware_kidx; + else + raw_kidx = firmware_kidx + 4; /* RX default keys or per STA keys */ + return raw_kidx; +} + +#endif /* B43_XMIT_H_ */ |