From d2b21f191753abd12c4063776cb1a3d635397509 Mon Sep 17 00:00:00 2001 From: Colin McCabe Date: Fri, 9 Jan 2009 14:58:09 -0800 Subject: libertas: if_spi, driver for libertas GSPI devices Add initial support for libertas devices using a GSPI interface. This has been tested with the 8686. GSPI is intended to be used on embedded systems. Board-specific parameters are required (see libertas_spi.h). Thanks to everyone who took a look at the earlier versions of the patch. Signed-off-by: Colin McCabe Signed-off-by: Andrey Yurovsky Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net/wireless/Kconfig') diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index e4f9f747de88..2dddbd012a99 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -151,6 +151,12 @@ config LIBERTAS_SDIO ---help--- A driver for Marvell Libertas 8385 and 8686 SDIO devices. +config LIBERTAS_SPI + tristate "Marvell Libertas 8686 SPI 802.11b/g cards" + depends on LIBERTAS && SPI && GENERIC_GPIO + ---help--- + A driver for Marvell Libertas 8686 SPI devices. + config LIBERTAS_DEBUG bool "Enable full debugging output in the Libertas module." depends on LIBERTAS -- cgit v1.2.3 From 49c1d2085b92a392189d44a06840cbd9ec147da2 Mon Sep 17 00:00:00 2001 From: Andrey Borzenkov Date: Sat, 17 Jan 2009 15:53:45 +0300 Subject: Move orinoco Kconfig entries into drivers/net/wireless/orinoco/Kconfig Since driver now lives in separate subdirectory, move Kconfig entries in own file so they can be tweaked indepndently. It complements "orinoco: Move sources to a subdirectory". Signed-off-by: Andrey Borzenkov Acked-by: Pavel Roskin Signed-off-by: John W. Linville --- drivers/net/wireless/Kconfig | 122 +---------------------------------- drivers/net/wireless/orinoco/Kconfig | 120 ++++++++++++++++++++++++++++++++++ 2 files changed, 121 insertions(+), 121 deletions(-) create mode 100644 drivers/net/wireless/orinoco/Kconfig (limited to 'drivers/net/wireless/Kconfig') diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 2dddbd012a99..fe819a785714 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -194,127 +194,6 @@ config AIRO The driver can be compiled as a module and will be named "airo". -config HERMES - tristate "Hermes chipset 802.11b support (Orinoco/Prism2/Symbol)" - depends on (PPC_PMAC || PCI || PCMCIA) && WLAN_80211 - select WIRELESS_EXT - select FW_LOADER - select CRYPTO - select CRYPTO_MICHAEL_MIC - ---help--- - A driver for 802.11b wireless cards based on the "Hermes" or - Intersil HFA384x (Prism 2) MAC controller. This includes the vast - majority of the PCMCIA 802.11b cards (which are nearly all rebadges) - - except for the Cisco/Aironet cards. Cards supported include the - Apple Airport (not a PCMCIA card), WavelanIEEE/Orinoco, - Cabletron/EnteraSys Roamabout, ELSA AirLancer, MELCO Buffalo, Avaya, - IBM High Rate Wireless, Farralon Syyline, Samsung MagicLAN, Netgear - MA401, LinkSys WPC-11, D-Link DWL-650, 3Com AirConnect, Intel - IPW2011, and Symbol Spectrum24 High Rate amongst others. - - This option includes the guts of the driver, but in order to - actually use a card you will also need to enable support for PCMCIA - Hermes cards, PLX9052 based PCI adaptors or the Apple Airport below. - - You will also very likely also need the Wireless Tools in order to - configure your card and that /etc/pcmcia/wireless.opts works : - - -config HERMES_CACHE_FW_ON_INIT - bool "Cache Hermes firmware on driver initialisation" - depends on HERMES - default y - ---help--- - Say Y to cache any firmware required by the Hermes drivers - on startup. The firmware will remain cached until the - driver is unloaded. The cache uses 64K of RAM. - - Otherwise load the firmware from userspace as required. In - this case the driver should be unloaded and restarted - whenever the firmware is changed. - - If you are not sure, say Y. - -config APPLE_AIRPORT - tristate "Apple Airport support (built-in)" - depends on PPC_PMAC && HERMES - help - Say Y here to support the Airport 802.11b wireless Ethernet hardware - built into the Macintosh iBook and other recent PowerPC-based - Macintosh machines. This is essentially a Lucent Orinoco card with - a non-standard interface. - - This driver does not support the Airport Extreme (802.11b/g). Use - the BCM43xx driver for Airport Extreme cards. - -config PLX_HERMES - tristate "Hermes in PLX9052 based PCI adaptor support (Netgear MA301 etc.)" - depends on PCI && HERMES - help - Enable support for PCMCIA cards supported by the "Hermes" (aka - orinoco) driver when used in PLX9052 based PCI adaptors. These - adaptors are not a full PCMCIA controller but act as a more limited - PCI <-> PCMCIA bridge. Several vendors sell such adaptors so that - 802.11b PCMCIA cards can be used in desktop machines. The Netgear - MA301 is such an adaptor. - -config TMD_HERMES - tristate "Hermes in TMD7160 based PCI adaptor support" - depends on PCI && HERMES - help - Enable support for PCMCIA cards supported by the "Hermes" (aka - orinoco) driver when used in TMD7160 based PCI adaptors. These - adaptors are not a full PCMCIA controller but act as a more limited - PCI <-> PCMCIA bridge. Several vendors sell such adaptors so that - 802.11b PCMCIA cards can be used in desktop machines. - -config NORTEL_HERMES - tristate "Nortel emobility PCI adaptor support" - depends on PCI && HERMES - help - Enable support for PCMCIA cards supported by the "Hermes" (aka - orinoco) driver when used in Nortel emobility PCI adaptors. These - adaptors are not full PCMCIA controllers, but act as a more limited - PCI <-> PCMCIA bridge. - -config PCI_HERMES - tristate "Prism 2.5 PCI 802.11b adaptor support" - depends on PCI && HERMES - help - Enable support for PCI and mini-PCI 802.11b wireless NICs based on - the Prism 2.5 chipset. These are true PCI cards, not the 802.11b - PCMCIA cards bundled with PCI<->PCMCIA adaptors which are also - common. Some of the built-in wireless adaptors in laptops are of - this variety. - -config PCMCIA_HERMES - tristate "Hermes PCMCIA card support" - depends on PCMCIA && HERMES - ---help--- - A driver for "Hermes" chipset based PCMCIA wireless adaptors, such - as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/ - EnteraSys RoamAbout 802.11, ELSA Airlancer, Melco Buffalo and - others). It should also be usable on various Prism II based cards - such as the Linksys, D-Link and Farallon Skyline. It should also - work on Symbol cards such as the 3Com AirConnect and Ericsson WLAN. - - You will very likely need the Wireless Tools in order to - configure your card and that /etc/pcmcia/wireless.opts works: - . - -config PCMCIA_SPECTRUM - tristate "Symbol Spectrum24 Trilogy PCMCIA card support" - depends on PCMCIA && HERMES - ---help--- - - This is a driver for 802.11b cards using RAM-loadable Symbol - firmware, such as Symbol Wireless Networker LA4100, CompactFlash - cards by Socket Communications and Intel PRO/Wireless 2011B. - - This driver requires firmware download on startup. Utilities - for downloading Symbol firmware are available at - - config ATMEL tristate "Atmel at76c50x chipset 802.11b support" depends on (PCI || PCMCIA) && WLAN_80211 @@ -596,5 +475,6 @@ source "drivers/net/wireless/b43/Kconfig" source "drivers/net/wireless/b43legacy/Kconfig" source "drivers/net/wireless/zd1211rw/Kconfig" source "drivers/net/wireless/rt2x00/Kconfig" +source "drivers/net/wireless/orinoco/Kconfig" endmenu diff --git a/drivers/net/wireless/orinoco/Kconfig b/drivers/net/wireless/orinoco/Kconfig new file mode 100644 index 000000000000..44411eb4e91b --- /dev/null +++ b/drivers/net/wireless/orinoco/Kconfig @@ -0,0 +1,120 @@ +config HERMES + tristate "Hermes chipset 802.11b support (Orinoco/Prism2/Symbol)" + depends on (PPC_PMAC || PCI || PCMCIA) && WLAN_80211 + select WIRELESS_EXT + select FW_LOADER + select CRYPTO + select CRYPTO_MICHAEL_MIC + ---help--- + A driver for 802.11b wireless cards based on the "Hermes" or + Intersil HFA384x (Prism 2) MAC controller. This includes the vast + majority of the PCMCIA 802.11b cards (which are nearly all rebadges) + - except for the Cisco/Aironet cards. Cards supported include the + Apple Airport (not a PCMCIA card), WavelanIEEE/Orinoco, + Cabletron/EnteraSys Roamabout, ELSA AirLancer, MELCO Buffalo, Avaya, + IBM High Rate Wireless, Farralon Syyline, Samsung MagicLAN, Netgear + MA401, LinkSys WPC-11, D-Link DWL-650, 3Com AirConnect, Intel + IPW2011, and Symbol Spectrum24 High Rate amongst others. + + This option includes the guts of the driver, but in order to + actually use a card you will also need to enable support for PCMCIA + Hermes cards, PLX9052 based PCI adaptors or the Apple Airport below. + + You will also very likely also need the Wireless Tools in order to + configure your card and that /etc/pcmcia/wireless.opts works : + + +config HERMES_CACHE_FW_ON_INIT + bool "Cache Hermes firmware on driver initialisation" + depends on HERMES + default y + ---help--- + Say Y to cache any firmware required by the Hermes drivers + on startup. The firmware will remain cached until the + driver is unloaded. The cache uses 64K of RAM. + + Otherwise load the firmware from userspace as required. In + this case the driver should be unloaded and restarted + whenever the firmware is changed. + + If you are not sure, say Y. + +config APPLE_AIRPORT + tristate "Apple Airport support (built-in)" + depends on PPC_PMAC && HERMES + help + Say Y here to support the Airport 802.11b wireless Ethernet hardware + built into the Macintosh iBook and other recent PowerPC-based + Macintosh machines. This is essentially a Lucent Orinoco card with + a non-standard interface. + + This driver does not support the Airport Extreme (802.11b/g). Use + the BCM43xx driver for Airport Extreme cards. + +config PLX_HERMES + tristate "Hermes in PLX9052 based PCI adaptor support (Netgear MA301 etc.)" + depends on PCI && HERMES + help + Enable support for PCMCIA cards supported by the "Hermes" (aka + orinoco) driver when used in PLX9052 based PCI adaptors. These + adaptors are not a full PCMCIA controller but act as a more limited + PCI <-> PCMCIA bridge. Several vendors sell such adaptors so that + 802.11b PCMCIA cards can be used in desktop machines. The Netgear + MA301 is such an adaptor. + +config TMD_HERMES + tristate "Hermes in TMD7160 based PCI adaptor support" + depends on PCI && HERMES + help + Enable support for PCMCIA cards supported by the "Hermes" (aka + orinoco) driver when used in TMD7160 based PCI adaptors. These + adaptors are not a full PCMCIA controller but act as a more limited + PCI <-> PCMCIA bridge. Several vendors sell such adaptors so that + 802.11b PCMCIA cards can be used in desktop machines. + +config NORTEL_HERMES + tristate "Nortel emobility PCI adaptor support" + depends on PCI && HERMES + help + Enable support for PCMCIA cards supported by the "Hermes" (aka + orinoco) driver when used in Nortel emobility PCI adaptors. These + adaptors are not full PCMCIA controllers, but act as a more limited + PCI <-> PCMCIA bridge. + +config PCI_HERMES + tristate "Prism 2.5 PCI 802.11b adaptor support" + depends on PCI && HERMES + help + Enable support for PCI and mini-PCI 802.11b wireless NICs based on + the Prism 2.5 chipset. These are true PCI cards, not the 802.11b + PCMCIA cards bundled with PCI<->PCMCIA adaptors which are also + common. Some of the built-in wireless adaptors in laptops are of + this variety. + +config PCMCIA_HERMES + tristate "Hermes PCMCIA card support" + depends on PCMCIA && HERMES + ---help--- + A driver for "Hermes" chipset based PCMCIA wireless adaptors, such + as the Lucent WavelanIEEE/Orinoco cards and their OEM (Cabletron/ + EnteraSys RoamAbout 802.11, ELSA Airlancer, Melco Buffalo and + others). It should also be usable on various Prism II based cards + such as the Linksys, D-Link and Farallon Skyline. It should also + work on Symbol cards such as the 3Com AirConnect and Ericsson WLAN. + + You will very likely need the Wireless Tools in order to + configure your card and that /etc/pcmcia/wireless.opts works: + . + +config PCMCIA_SPECTRUM + tristate "Symbol Spectrum24 Trilogy PCMCIA card support" + depends on PCMCIA && HERMES + ---help--- + + This is a driver for 802.11b cards using RAM-loadable Symbol + firmware, such as Symbol Wireless Networker LA4100, CompactFlash + cards by Socket Communications and Intel PRO/Wireless 2011B. + + This driver requires firmware download on startup. Utilities + for downloading Symbol firmware are available at + -- cgit v1.2.3 From 1264b951463a00efebe1bb596499aaad620ec8af Mon Sep 17 00:00:00 2001 From: Kalle Valo Date: Sat, 7 Feb 2009 09:27:10 +0200 Subject: at76c50x-usb: add driver This is a driver for usb devices based on at76c50x chipset. This is a mac80211 port of the original at76_usb driver. Signed-off-by: Kalle Valo Signed-off-by: John W. Linville --- drivers/net/wireless/Kconfig | 8 + drivers/net/wireless/Makefile | 2 + drivers/net/wireless/at76c50x-usb.c | 2465 +++++++++++++++++++++++++++++++++++ drivers/net/wireless/at76c50x-usb.h | 463 +++++++ 4 files changed, 2938 insertions(+) create mode 100644 drivers/net/wireless/at76c50x-usb.c create mode 100644 drivers/net/wireless/at76c50x-usb.h (limited to 'drivers/net/wireless/Kconfig') diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index fe819a785714..1294175cab20 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -228,6 +228,14 @@ config PCMCIA_ATMEL Enable support for PCMCIA cards containing the Atmel at76c502 and at76c504 chips. +config AT76C50X_USB + tristate "Atmel at76c503/at76c505/at76c505a USB cards" + depends on MAC80211 && WLAN_80211 && USB + select FW_LOADER + ---help--- + Enable support for USB Wireless devices using Atmel at76c503, + at76c505 or at76c505a chips. + config AIRO_CS tristate "Cisco/Aironet 34X/35X/4500/4800 PCMCIA cards" depends on PCMCIA && (BROKEN || !M32R) && WLAN_80211 diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index ac590e1ca8be..e2574cafe051 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -24,6 +24,8 @@ obj-$(CONFIG_ATMEL) += atmel.o obj-$(CONFIG_PCI_ATMEL) += atmel_pci.o obj-$(CONFIG_PCMCIA_ATMEL) += atmel_cs.o +obj-$(CONFIG_AT76C50X_USB) += at76c50x-usb.o + obj-$(CONFIG_PRISM54) += prism54/ obj-$(CONFIG_HOSTAP) += hostap/ diff --git a/drivers/net/wireless/at76c50x-usb.c b/drivers/net/wireless/at76c50x-usb.c new file mode 100644 index 000000000000..e8868aef02b9 --- /dev/null +++ b/drivers/net/wireless/at76c50x-usb.c @@ -0,0 +1,2465 @@ +/* + * at76c503/at76c505 USB driver + * + * Copyright (c) 2002 - 2003 Oliver Kurth + * Copyright (c) 2004 Joerg Albert + * Copyright (c) 2004 Nick Jones + * Copyright (c) 2004 Balint Seeber + * Copyright (c) 2007 Guido Guenther + * Copyright (c) 2007 Kalle Valo + * + * 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 file is part of the Berlios driver for WLAN USB devices based on the + * Atmel AT76C503A/505/505A. + * + * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed + * + * TODO for the mac80211 port: + * o adhoc support + * o RTS/CTS support + * o Power Save Mode support + * o support for short/long preambles + * o export variables through debugfs/sysfs + * o remove hex2str + * o remove mac2str + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "at76c50x-usb.h" + +/* Version information */ +#define DRIVER_NAME "at76c50x-usb" +#define DRIVER_VERSION "0.17" +#define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" + +/* at76_debug bits */ +#define DBG_PROGRESS 0x00000001 /* authentication/accociation */ +#define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ +#define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ +#define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ +#define DBG_TX_DATA 0x00000010 /* tx header */ +#define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ +#define DBG_TX_MGMT 0x00000040 /* tx management */ +#define DBG_RX_DATA 0x00000080 /* rx data header */ +#define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ +#define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ +#define DBG_RX_BEACON 0x00000400 /* rx beacon */ +#define DBG_RX_CTRL 0x00000800 /* rx control */ +#define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ +#define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ +#define DBG_DEVSTART 0x00004000 /* fw download, device start */ +#define DBG_URB 0x00008000 /* rx urb status, ... */ +#define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ +#define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ +#define DBG_PM 0x00040000 /* power management settings */ +#define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ +#define DBG_PARAMS 0x00100000 /* show configured parameters */ +#define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ +#define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ +#define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ +#define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ +#define DBG_MIB 0x02000000 /* dump all MIBs on startup */ +#define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ +#define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ +#define DBG_FW 0x10000000 /* firmware download */ +#define DBG_DFU 0x20000000 /* device firmware upgrade */ +#define DBG_CMD 0x40000000 +#define DBG_MAC80211 0x80000000 + +#define DBG_DEFAULTS 0 + +/* Use our own dbg macro */ +#define at76_dbg(bits, format, arg...) \ + do { \ + if (at76_debug & (bits)) \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + } while (0) + +#define at76_dbg_dump(bits, buf, len, format, arg...) \ + do { \ + if (at76_debug & (bits)) { \ + printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ + ## arg); \ + print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \ + buf, len); \ + } \ + } while (0) + +static int at76_debug = DBG_DEFAULTS; + +/* Protect against concurrent firmware loading and parsing */ +static struct mutex fw_mutex; + +static struct fwentry firmwares[] = { + [0] = { "" }, + [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, + [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, + [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, + [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, + [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, + [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, + [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, + [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, +}; + +#define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) + +static struct usb_device_id dev_table[] = { + /* + * at76c503-i3861 + */ + /* Generic AT76C503/3861 device */ + { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Linksys WUSB11 v2.1/v2.6 */ + { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Netgear MA101 rev. A */ + { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Tekram U300C / Allnet ALL0193 */ + { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* HP HN210W J7801A */ + { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Sitecom/Z-Com/Zyxel M4Y-750 */ + { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink/Askey WLL013 (intersil) */ + { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ + { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BenQ AWL300 */ + { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Addtron AWU-120, Compex WLU11 */ + { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Intel AP310 AnyPoint II USB */ + { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Dynalink L11U */ + { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* Arescom WL-210, FCC id 07J-GL2411USB */ + { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* I-O DATA WN-B11/USB */ + { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* BT Voyager 1010 */ + { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, + /* + * at76c503-i3863 + */ + /* Generic AT76C503/3863 device */ + { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* Samsung SWL-2100U */ + { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, + /* + * at76c503-rfmd + */ + /* Generic AT76C503/RFMD device */ + { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* Dynalink/Askey WLL013 (rfmd) */ + { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, + /* Linksys WUSB11 v2.6 */ + { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, + /* Network Everywhere NWU11B */ + { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, + /* Netgear MA101 rev. B */ + { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* D-Link DWL-120 rev. E */ + { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, + /* Actiontec 802UAT1, HWU01150-01UK */ + { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, + /* AirVast W-Buddie WN210 */ + { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, + /* Dick Smith Electronics XH1153 802.11b USB adapter */ + { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, + /* CNet CNUSB611 */ + { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, + /* FiberLine FL-WL200U */ + { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, + /* BenQ AWL400 USB stick */ + { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, + /* 3Com 3CRSHEW696 */ + { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, + /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ + { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, + /* Belkin F5D6050, version 2 */ + { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, + /* iBlitzz, BWU613 (not *B or *SB) */ + { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, + /* Gigabyte GN-WLBM101 */ + { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, + /* Planex GW-US11S */ + { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, + /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ + { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini */ + { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, + /* Corega Wireless LAN USB-11 mini2 */ + { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, + /* Uniden PCW100 */ + { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, + /* + * at76c503-rfmd-acc + */ + /* SMC2664W */ + { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ + { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, + /* + * at76c505-rfmd + */ + /* Generic AT76C505/RFMD */ + { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, + /* + * at76c505-rfmd2958 + */ + /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ + { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Fiberline FL-WL240U */ + { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, + /* CNet CNUSB-611G */ + { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Linksys WUSB11 v2.8 */ + { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ + { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Corega WLAN USB Stick 11 */ + { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, + /* Microstar MSI Box MS6978 */ + { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, + /* + * at76c505a-rfmd2958 + */ + /* Generic AT76C505A device */ + { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, + /* Generic AT76C505AS device */ + { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, + /* Siemens Gigaset USB WLAN Adapter 11 */ + { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, + /* + * at76c505amx-rfmd + */ + /* Generic AT76C505AMX device */ + { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, + { } +}; + +MODULE_DEVICE_TABLE(usb, dev_table); + +/* Supported rates of this hardware, bit 7 marks basic rates */ +static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; + +static const char *const preambles[] = { "long", "short", "auto" }; + +/* Firmware download */ +/* DFU states */ +#define STATE_IDLE 0x00 +#define STATE_DETACH 0x01 +#define STATE_DFU_IDLE 0x02 +#define STATE_DFU_DOWNLOAD_SYNC 0x03 +#define STATE_DFU_DOWNLOAD_BUSY 0x04 +#define STATE_DFU_DOWNLOAD_IDLE 0x05 +#define STATE_DFU_MANIFEST_SYNC 0x06 +#define STATE_DFU_MANIFEST 0x07 +#define STATE_DFU_MANIFEST_WAIT_RESET 0x08 +#define STATE_DFU_UPLOAD_IDLE 0x09 +#define STATE_DFU_ERROR 0x0a + +/* DFU commands */ +#define DFU_DETACH 0 +#define DFU_DNLOAD 1 +#define DFU_UPLOAD 2 +#define DFU_GETSTATUS 3 +#define DFU_CLRSTATUS 4 +#define DFU_GETSTATE 5 +#define DFU_ABORT 6 + +#define FW_BLOCK_SIZE 1024 + +struct dfu_status { + unsigned char status; + unsigned char poll_timeout[3]; + unsigned char state; + unsigned char string; +} __attribute__((packed)); + +static inline int at76_is_intersil(enum board_type board) +{ + return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); +} + +static inline int at76_is_503rfmd(enum board_type board) +{ + return (board == BOARD_503 || board == BOARD_503_ACC); +} + +static inline int at76_is_505a(enum board_type board) +{ + return (board == BOARD_505A || board == BOARD_505AMX); +} + +/* Load a block of the first (internal) part of the firmware */ +static int at76_load_int_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, + USB_TYPE_CLASS | USB_DIR_OUT | + USB_RECIP_INTERFACE, blockno, 0, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static int at76_dfu_get_status(struct usb_device *udev, + struct dfu_status *status) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, status, sizeof(struct dfu_status), + USB_CTRL_GET_TIMEOUT); + return ret; +} + +static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, + USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, + 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); + return ret; +} + +/* Convert timeout from the DFU status to jiffies */ +static inline unsigned long at76_get_timeout(struct dfu_status *s) +{ + return msecs_to_jiffies((s->poll_timeout[2] << 16) + | (s->poll_timeout[1] << 8) + | (s->poll_timeout[0])); +} + +/* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use + * its value in jiffies in the MANIFEST_SYNC state. */ +static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, + int manifest_sync_timeout) +{ + u8 *block; + struct dfu_status dfu_stat_buf; + int ret = 0; + int need_dfu_state = 1; + int is_done = 0; + u8 dfu_state = 0; + u32 dfu_timeout = 0; + int bsize = 0; + int blockno = 0; + + at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, + manifest_sync_timeout); + + if (!size) { + dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); + return -EINVAL; + } + + block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return -ENOMEM; + + do { + if (need_dfu_state) { + ret = at76_dfu_get_state(udev, &dfu_state); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "cannot get DFU state: %d\n", ret); + goto exit; + } + need_dfu_state = 0; + } + + switch (dfu_state) { + case STATE_DFU_DOWNLOAD_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret >= 0) { + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + } else + dev_printk(KERN_ERR, &udev->dev, + "at76_dfu_get_status returned %d\n", + ret); + break; + + case STATE_DFU_DOWNLOAD_BUSY: + at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); + need_dfu_state = 1; + + at76_dbg(DBG_DFU, "DFU: Resetting device"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_DOWNLOAD_IDLE: + at76_dbg(DBG_DFU, "DOWNLOAD..."); + /* fall through */ + case STATE_DFU_IDLE: + at76_dbg(DBG_DFU, "DFU IDLE"); + + bsize = min_t(int, size, FW_BLOCK_SIZE); + memcpy(block, buf, bsize); + at76_dbg(DBG_DFU, "int fw, size left = %5d, " + "bsize = %4d, blockno = %2d", size, bsize, + blockno); + ret = + at76_load_int_fw_block(udev, blockno, block, bsize); + buf += bsize; + size -= bsize; + blockno++; + + if (ret != bsize) + dev_printk(KERN_ERR, &udev->dev, + "at76_load_int_fw_block " + "returned %d\n", ret); + need_dfu_state = 1; + break; + + case STATE_DFU_MANIFEST_SYNC: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); + + ret = at76_dfu_get_status(udev, &dfu_stat_buf); + if (ret < 0) + break; + + dfu_state = dfu_stat_buf.state; + dfu_timeout = at76_get_timeout(&dfu_stat_buf); + need_dfu_state = 0; + + /* override the timeout from the status response, + needed for AT76C505A */ + if (manifest_sync_timeout > 0) + dfu_timeout = manifest_sync_timeout; + + at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); + schedule_timeout_interruptible(dfu_timeout); + break; + + case STATE_DFU_MANIFEST: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); + is_done = 1; + break; + + case STATE_DFU_MANIFEST_WAIT_RESET: + at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); + is_done = 1; + break; + + case STATE_DFU_UPLOAD_IDLE: + at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); + break; + + case STATE_DFU_ERROR: + at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); + ret = -EPIPE; + break; + + default: + at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); + ret = -EINVAL; + break; + } + } while (!is_done && (ret >= 0)); + +exit: + kfree(block); + if (ret >= 0) + ret = 0; + + return ret; +} + +#define HEX2STR_BUFFERS 4 +#define HEX2STR_MAX_LEN 64 +#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) + +/* Convert binary data into hex string */ +static char *hex2str(void *buf, int len) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; + char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; + char *obuf = ret; + u8 *ibuf = buf; + + if (len > HEX2STR_MAX_LEN) + len = HEX2STR_MAX_LEN; + + if (len <= 0) { + ret[0] = '\0'; + return ret; + } + + while (len--) { + *obuf++ = BIN2HEX(*ibuf >> 4); + *obuf++ = BIN2HEX(*ibuf & 0xf); + *obuf++ = '-'; + ibuf++; + } + *(--obuf) = '\0'; + + return ret; +} + +#define MAC2STR_BUFFERS 4 + +static inline char *mac2str(u8 *mac) +{ + static atomic_t a = ATOMIC_INIT(0); + static char bufs[MAC2STR_BUFFERS][6 * 3]; + char *str; + + str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; + sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + return str; +} + +/* LED trigger */ +static int tx_activity; +static void at76_ledtrig_tx_timerfunc(unsigned long data); +static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); +DEFINE_LED_TRIGGER(ledtrig_tx); + +static void at76_ledtrig_tx_timerfunc(unsigned long data) +{ + static int tx_lastactivity; + + if (tx_lastactivity != tx_activity) { + tx_lastactivity = tx_activity; + led_trigger_event(ledtrig_tx, LED_FULL); + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); + } else + led_trigger_event(ledtrig_tx, LED_OFF); +} + +static void at76_ledtrig_tx_activity(void) +{ + tx_activity++; + if (!timer_pending(&ledtrig_tx_timer)) + mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); +} + +static int at76_remap(struct usb_device *udev) +{ + int ret; + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, + USB_TYPE_VENDOR | USB_DIR_OUT | + USB_RECIP_INTERFACE, 0, 0, NULL, 0, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + return 0; +} + +static int at76_get_op_mode(struct usb_device *udev) +{ + int ret; + u8 op_mode; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x01, 0, &op_mode, 1, + USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + else if (ret < 1) + return -EIO; + else + return op_mode; +} + +/* Load a block of the second ("external") part of the firmware */ +static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, + void *block, int size) +{ + return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0x0802, blockno, block, size, + USB_CTRL_GET_TIMEOUT); +} + +static inline int at76_get_hw_cfg(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0a02, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Intersil boards use a different "value" for GetHWConfig requests */ +static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, + union at76_hwcfg *buf, int buf_size) +{ + return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, 0x0902, 0, + buf, buf_size, USB_CTRL_GET_TIMEOUT); +} + +/* Get the hardware configuration for the adapter and put it to the appropriate + * fields of 'priv' (the GetHWConfig request and interpretation of the result + * depends on the board type) */ +static int at76_get_hw_config(struct at76_priv *priv) +{ + int ret; + union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); + + if (!hwcfg) + return -ENOMEM; + + if (at76_is_intersil(priv->board_type)) { + ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, + sizeof(hwcfg->i)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->i.regulatory_domain; + } else if (at76_is_503rfmd(priv->board_type)) { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r3.regulatory_domain; + } else { + ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); + if (ret < 0) + goto exit; + memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); + priv->regulatory_domain = hwcfg->r5.regulatory_domain; + } + +exit: + kfree(hwcfg); + if (ret < 0) + printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static struct reg_domain const *at76_get_reg_domain(u16 code) +{ + int i; + static struct reg_domain const fd_tab[] = { + { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ + { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ + { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ + { 0x31, "Spain", 0x600 }, /* ch 10-11 */ + { 0x32, "France", 0x1e00 }, /* ch 10-13 */ + { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ + { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ + { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ + { 0x00, "", 0xffffffff } /* ch 1-32 */ + }; + + /* Last entry is fallback for unknown domain code */ + for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) + if (code == fd_tab[i].code) + break; + + return &fd_tab[i]; +} + +static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, + int buf_size) +{ + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, + USB_CTRL_GET_TIMEOUT); + if (ret >= 0 && ret != buf_size) + return -EIO; + return ret; +} + +/* Return positive number for status, negative for an error */ +static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) +{ + u8 stat_buf[40]; + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, + USB_TYPE_VENDOR | USB_DIR_IN | + USB_RECIP_INTERFACE, cmd, 0, stat_buf, + sizeof(stat_buf), USB_CTRL_GET_TIMEOUT); + if (ret < 0) + return ret; + + return stat_buf[5]; +} + +#define MAKE_CMD_CASE(c) case (c): return #c + +static const char *at76_get_cmd_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_CASE(CMD_SET_MIB); + MAKE_CMD_CASE(CMD_GET_MIB); + MAKE_CMD_CASE(CMD_SCAN); + MAKE_CMD_CASE(CMD_JOIN); + MAKE_CMD_CASE(CMD_START_IBSS); + MAKE_CMD_CASE(CMD_RADIO_ON); + MAKE_CMD_CASE(CMD_RADIO_OFF); + MAKE_CMD_CASE(CMD_STARTUP); + } + + return "UNKNOWN"; +} + +static int at76_set_card_command(struct usb_device *udev, int cmd, void *buf, + int buf_size) +{ + int ret; + struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + + buf_size, GFP_KERNEL); + + if (!cmd_buf) + return -ENOMEM; + + cmd_buf->cmd = cmd; + cmd_buf->reserved = 0; + cmd_buf->size = cpu_to_le16(buf_size); + memcpy(cmd_buf->data, buf, buf_size); + + at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, + "issuing command %s (0x%02x)", + at76_get_cmd_string(cmd), cmd); + + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, + USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, + 0, 0, cmd_buf, + sizeof(struct at76_command) + buf_size, + USB_CTRL_GET_TIMEOUT); + kfree(cmd_buf); + return ret; +} + +#define MAKE_CMD_STATUS_CASE(c) case (c): return #c +static const char *at76_get_cmd_status_string(u8 cmd_status) +{ + switch (cmd_status) { + MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); + MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); + MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); + MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); + MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); + MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); + MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); + } + + return "UNKNOWN"; +} + +/* Wait until the command is completed */ +static int at76_wait_completion(struct at76_priv *priv, int cmd) +{ + int status = 0; + unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; + + do { + status = at76_get_cmd_status(priv->udev, cmd); + if (status < 0) { + printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", + wiphy_name(priv->hw->wiphy), status); + break; + } + + at76_dbg(DBG_WAIT_COMPLETE, + "%s: Waiting on cmd %d, status = %d (%s)", + wiphy_name(priv->hw->wiphy), cmd, status, + at76_get_cmd_status_string(status)); + + if (status != CMD_STATUS_IN_PROGRESS + && status != CMD_STATUS_IDLE) + break; + + schedule_timeout_interruptible(HZ / 10); /* 100 ms */ + if (time_after(jiffies, timeout)) { + printk(KERN_ERR + "%s: completion timeout for command %d\n", + wiphy_name(priv->hw->wiphy), cmd); + status = -ETIMEDOUT; + break; + } + } while (1); + + return status; +} + +static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) +{ + int ret; + + ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, + offsetof(struct set_mib_buffer, + data) + buf->size); + if (ret < 0) + return ret; + + ret = at76_wait_completion(priv, CMD_SET_MIB); + if (ret != CMD_STATUS_COMPLETE) { + printk(KERN_INFO + "%s: set_mib: at76_wait_completion failed " + "with %d\n", wiphy_name(priv->hw->wiphy), ret); + ret = -EIO; + } + + return ret; +} + +/* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ +static int at76_set_radio(struct at76_priv *priv, int enable) +{ + int ret; + int cmd; + + if (priv->radio_on == enable) + return 0; + + cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; + + ret = at76_set_card_command(priv->udev, cmd, NULL, 0); + if (ret < 0) + printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", + wiphy_name(priv->hw->wiphy), cmd, ret); + else + ret = 1; + + priv->radio_on = enable; + return ret; +} + +/* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ +static int at76_set_pm_mode(struct at76_priv *priv) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC_MGMT; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); + priv->mib_buf.data.byte = priv->pm_mode; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_preamble(struct at76_priv *priv, u8 type) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, preamble_type); + priv->mib_buf.data.byte = type; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_frag(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_rts(struct at76_priv *priv, u16 size) +{ + int ret = 0; + + priv->mib_buf.type = MIB_MAC; + priv->mib_buf.size = 2; + priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); + priv->mib_buf.data.word = cpu_to_le16(size); + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) +{ + int ret = 0; + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); + priv->mib_buf.data.byte = onoff; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + return ret; +} + +static void at76_dump_mib_mac_addr(struct at76_priv *priv) +{ + int i; + int ret; + struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, + sizeof(struct mib_mac_addr)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", + wiphy_name(priv->hw->wiphy), + mac2str(m->mac_addr), m->res[0], m->res[1]); + for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " + "status %d", wiphy_name(priv->hw->wiphy), i, + mac2str(m->group_addr[i]), m->group_addr_status[i]); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_wep(struct at76_priv *priv) +{ + int i; + int ret; + int key_len; + struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, + sizeof(struct mib_mac_wep)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " + "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " + "encr_level %u key %d", wiphy_name(priv->hw->wiphy), + m->privacy_invoked, m->wep_default_key_id, + m->wep_key_mapping_len, m->exclude_unencrypted, + le32_to_cpu(m->wep_icv_error_count), + le32_to_cpu(m->wep_excluded_count), m->encryption_level, + m->wep_default_key_id); + + key_len = (m->encryption_level == 1) ? + WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; + + for (i = 0; i < WEP_KEYS; i++) + at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", + wiphy_name(priv->hw->wiphy), i, + hex2str(m->wep_default_keyvalue[i], key_len)); +exit: + kfree(m); +} + +static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) +{ + int ret; + struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), + GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, + sizeof(struct mib_mac_mgmt)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " + "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " + "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " + "current_bssid %s current_essid %s current_bss_type %d " + "pm_mode %d ibss_change %d res %d " + "multi_domain_capability_implemented %d " + "international_roaming %d country_string %.3s", + wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), + le16_to_cpu(m->CFP_max_duration), + le16_to_cpu(m->medium_occupancy_limit), + le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), + m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, + m->CFP_period, mac2str(m->current_bssid), + hex2str(m->current_essid, IW_ESSID_MAX_SIZE), + m->current_bss_type, m->power_mgmt_mode, m->ibss_change, + m->res, m->multi_domain_capability_implemented, + m->multi_domain_capability_enabled, m->country_string); +exit: + kfree(m); +} + +static void at76_dump_mib_mac(struct at76_priv *priv) +{ + int ret; + struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " + "max_rx_lifetime %d frag_threshold %d rts_threshold %d " + "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " + "scan_type %d scan_channel %d probe_delay %u " + "min_channel_time %d max_channel_time %d listen_int %d " + "desired_ssid %s desired_bssid %s desired_bsstype %d", + wiphy_name(priv->hw->wiphy), + le32_to_cpu(m->max_tx_msdu_lifetime), + le32_to_cpu(m->max_rx_lifetime), + le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), + le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), + m->short_retry_time, m->long_retry_time, m->scan_type, + m->scan_channel, le16_to_cpu(m->probe_delay), + le16_to_cpu(m->min_channel_time), + le16_to_cpu(m->max_channel_time), + le16_to_cpu(m->listen_interval), + hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), + mac2str(m->desired_bssid), m->desired_bsstype); +exit: + kfree(m); +} + +static void at76_dump_mib_phy(struct at76_priv *priv) +{ + int ret; + struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " + "sifs_time %d preamble_length %d plcp_header_length %d " + "mpdu_max_length %d cca_mode_supported %d operation_rate_set " + "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " + "phy_type %d current_reg_domain %d", + wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), + le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), + le16_to_cpu(m->preamble_length), + le16_to_cpu(m->plcp_header_length), + le16_to_cpu(m->mpdu_max_length), + le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], + m->operation_rate_set[1], m->operation_rate_set[2], + m->operation_rate_set[3], m->channel_id, m->current_cca_mode, + m->phy_type, m->current_reg_domain); +exit: + kfree(m); +} + +static void at76_dump_mib_local(struct at76_priv *priv) +{ + int ret; + struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " + "txautorate_fallback %d ssid_size %d promiscuous_mode %d " + "preamble_type %d", wiphy_name(priv->hw->wiphy), + m->beacon_enable, + m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, + m->preamble_type); +exit: + kfree(m); +} + +static void at76_dump_mib_mdomain(struct at76_priv *priv) +{ + int ret; + struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); + + if (!m) + return; + + ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, + sizeof(struct mib_mdomain)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto exit; + } + + at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", + wiphy_name(priv->hw->wiphy), + hex2str(m->channel_list, sizeof(m->channel_list))); + + at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", + wiphy_name(priv->hw->wiphy), + hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); +exit: + kfree(m); +} + +/* Enable monitor mode */ +static int at76_start_monitor(struct at76_priv *priv) +{ + struct at76_req_scan scan; + int ret; + + memset(&scan, 0, sizeof(struct at76_req_scan)); + memset(scan.bssid, 0xff, ETH_ALEN); + + scan.channel = priv->channel; + scan.scan_type = SCAN_TYPE_PASSIVE; + scan.international_scan = 0; + + ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); + if (ret >= 0) + ret = at76_get_cmd_status(priv->udev, CMD_SCAN); + + return ret; +} + +/* Calculate padding from txbuf->wlength (which excludes the USB TX header), + likely to compensate a flaw in the AT76C503A USB part ... */ +static inline int at76_calc_padding(int wlen) +{ + /* add the USB TX header */ + wlen += AT76_TX_HDRLEN; + + wlen = wlen % 64; + + if (wlen < 50) + return 50 - wlen; + + if (wlen >= 61) + return 64 + 50 - wlen; + + return 0; +} + +static void at76_rx_callback(struct urb *urb) +{ + struct at76_priv *priv = urb->context; + + priv->rx_tasklet.data = (unsigned long)urb; + tasklet_schedule(&priv->rx_tasklet); + return; +} + +static int at76_submit_rx_urb(struct at76_priv *priv) +{ + int ret; + int size; + struct sk_buff *skb = priv->rx_skb; + + if (!priv->rx_urb) { + printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", + wiphy_name(priv->hw->wiphy), __func__); + return -EFAULT; + } + + if (!skb) { + skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); + if (!skb) { + printk(KERN_ERR "%s: cannot allocate rx skbuff\n", + wiphy_name(priv->hw->wiphy)); + ret = -ENOMEM; + goto exit; + } + priv->rx_skb = skb; + } else { + skb_push(skb, skb_headroom(skb)); + skb_trim(skb, 0); + } + + size = skb_tailroom(skb); + usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, + skb_put(skb, size), size, at76_rx_callback, priv); + ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); + if (ret < 0) { + if (ret == -ENODEV) + at76_dbg(DBG_DEVSTART, + "usb_submit_urb returned -ENODEV"); + else + printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + } + +exit: + if (ret < 0 && ret != -ENODEV) + printk(KERN_ERR "%s: cannot submit rx urb - please unload the " + "driver and/or power cycle the device\n", + wiphy_name(priv->hw->wiphy)); + + return ret; +} + +/* Download external firmware */ +static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) +{ + int ret; + int op_mode; + int blockno = 0; + int bsize; + u8 *block; + u8 *buf = fwe->extfw; + int size = fwe->extfw_size; + + if (!buf || !size) + return -ENOENT; + + op_mode = at76_get_op_mode(udev); + at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); + + if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { + dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", + op_mode); + return -EINVAL; + } + + block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return -ENOMEM; + + at76_dbg(DBG_DEVSTART, "downloading external firmware"); + + /* for fw >= 0.100, the device needs an extra empty block */ + do { + bsize = min_t(int, size, FW_BLOCK_SIZE); + memcpy(block, buf, bsize); + at76_dbg(DBG_DEVSTART, + "ext fw, size left = %5d, bsize = %4d, blockno = %2d", + size, bsize, blockno); + ret = at76_load_ext_fw_block(udev, blockno, block, bsize); + if (ret != bsize) { + dev_printk(KERN_ERR, &udev->dev, + "loading %dth firmware block failed: %d\n", + blockno, ret); + goto exit; + } + buf += bsize; + size -= bsize; + blockno++; + } while (bsize > 0); + + if (at76_is_505a(fwe->board_type)) { + at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); + schedule_timeout_interruptible(HZ / 5 + 1); + } + +exit: + kfree(block); + if (ret < 0) + dev_printk(KERN_ERR, &udev->dev, + "downloading external firmware failed: %d\n", ret); + return ret; +} + +/* Download internal firmware */ +static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) +{ + int ret; + int need_remap = !at76_is_505a(fwe->board_type); + + ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, + need_remap ? 0 : 2 * HZ); + + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "downloading internal fw failed with %d\n", ret); + goto exit; + } + + at76_dbg(DBG_DEVSTART, "sending REMAP"); + + /* no REMAP for 505A (see SF driver) */ + if (need_remap) { + ret = at76_remap(udev); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, + "sending REMAP failed with %d\n", ret); + goto exit; + } + } + + at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); + schedule_timeout_interruptible(2 * HZ + 1); + usb_reset_device(udev); + +exit: + return ret; +} + +static int at76_startup_device(struct at76_priv *priv) +{ + struct at76_card_config *ccfg = &priv->card_config; + int ret; + + at76_dbg(DBG_PARAMS, + "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " + "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, + priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE), + priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", + priv->channel, priv->wep_enabled ? "enabled" : "disabled", + priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); + at76_dbg(DBG_PARAMS, + "%s param: preamble %s rts %d retry %d frag %d " + "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), + preambles[priv->preamble_type], priv->rts_threshold, + priv->short_retry_limit, priv->frag_threshold, + priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == + TX_RATE_2MBIT ? "2MBit" : priv->txrate == + TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == + TX_RATE_11MBIT ? "11MBit" : priv->txrate == + TX_RATE_AUTO ? "auto" : "", priv->auth_mode); + at76_dbg(DBG_PARAMS, + "%s param: pm_mode %d pm_period %d auth_mode %s " + "scan_times %d %d scan_mode %s", + wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, + priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", + priv->scan_min_time, priv->scan_max_time, + priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); + + memset(ccfg, 0, sizeof(struct at76_card_config)); + ccfg->promiscuous_mode = 0; + ccfg->short_retry_limit = priv->short_retry_limit; + + if (priv->wep_enabled) { + if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) + ccfg->encryption_type = 2; + else + ccfg->encryption_type = 1; + + /* jal: always exclude unencrypted if WEP is active */ + ccfg->exclude_unencrypted = 1; + } else { + ccfg->exclude_unencrypted = 0; + ccfg->encryption_type = 0; + } + + ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); + ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); + + memcpy(ccfg->basic_rate_set, hw_rates, 4); + /* jal: really needed, we do a set_mib for autorate later ??? */ + ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); + ccfg->channel = priv->channel; + ccfg->privacy_invoked = priv->wep_enabled; + memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); + ccfg->ssid_len = priv->essid_size; + + ccfg->wep_default_key_id = priv->wep_key_id; + memcpy(ccfg->wep_default_key_value, priv->wep_keys, + sizeof(priv->wep_keys)); + + ccfg->short_preamble = priv->preamble_type; + ccfg->beacon_period = cpu_to_le16(priv->beacon_period); + + ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, + sizeof(struct at76_card_config)); + if (ret < 0) { + printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return ret; + } + + at76_wait_completion(priv, CMD_STARTUP); + + /* remove BSSID from previous run */ + memset(priv->bssid, 0, ETH_ALEN); + + if (at76_set_radio(priv, 1) == 1) + at76_wait_completion(priv, CMD_RADIO_ON); + + ret = at76_set_preamble(priv, priv->preamble_type); + if (ret < 0) + return ret; + + ret = at76_set_frag(priv, priv->frag_threshold); + if (ret < 0) + return ret; + + ret = at76_set_rts(priv, priv->rts_threshold); + if (ret < 0) + return ret; + + ret = at76_set_autorate_fallback(priv, + priv->txrate == TX_RATE_AUTO ? 1 : 0); + if (ret < 0) + return ret; + + ret = at76_set_pm_mode(priv); + if (ret < 0) + return ret; + + if (at76_debug & DBG_MIB) { + at76_dump_mib_mac(priv); + at76_dump_mib_mac_addr(priv); + at76_dump_mib_mac_mgmt(priv); + at76_dump_mib_mac_wep(priv); + at76_dump_mib_mdomain(priv); + at76_dump_mib_phy(priv); + at76_dump_mib_local(priv); + } + + return 0; +} + +/* Enable or disable promiscuous mode */ +static void at76_work_set_promisc(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + work_set_promisc); + int ret = 0; + + mutex_lock(&priv->mtx); + + priv->mib_buf.type = MIB_LOCAL; + priv->mib_buf.size = 1; + priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); + priv->mib_buf.data.byte = priv->promisc ? 1 : 0; + + ret = at76_set_mib(priv, &priv->mib_buf); + if (ret < 0) + printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + + mutex_unlock(&priv->mtx); +} + +/* Submit Rx urb back to the device */ +static void at76_work_submit_rx(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + work_submit_rx); + + mutex_lock(&priv->mtx); + at76_submit_rx_urb(priv); + mutex_unlock(&priv->mtx); +} + +static void at76_rx_tasklet(unsigned long param) +{ + struct urb *urb = (struct urb *)param; + struct at76_priv *priv = urb->context; + struct at76_rx_buffer *buf; + struct ieee80211_rx_status rx_status = { 0 }; + + if (priv->device_unplugged) { + at76_dbg(DBG_DEVSTART, "device unplugged"); + if (urb) + at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); + return; + } + + if (!priv->rx_skb || !priv->rx_skb->data) + return; + + buf = (struct at76_rx_buffer *)priv->rx_skb->data; + + if (urb->status != 0) { + if (urb->status != -ENOENT && urb->status != -ECONNRESET) + at76_dbg(DBG_URB, + "%s %s: - nonzero Rx bulk status received: %d", + __func__, wiphy_name(priv->hw->wiphy), + urb->status); + return; + } + + at76_dbg(DBG_RX_ATMEL_HDR, + "%s: rx frame: rate %d rssi %d noise %d link %d", + wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, + buf->noise_level, buf->link_quality); + + skb_pull(priv->rx_skb, AT76_RX_HDRLEN); + skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); + at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, + priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); + + rx_status.signal = buf->rssi; + rx_status.flag |= RX_FLAG_DECRYPTED; + rx_status.flag |= RX_FLAG_IV_STRIPPED; + + at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", + priv->rx_skb->len, priv->rx_skb->data_len); + ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status); + + /* Use a new skb for the next receive */ + priv->rx_skb = NULL; + + at76_submit_rx_urb(priv); +} + +/* Load firmware into kernel memory and parse it */ +static struct fwentry *at76_load_firmware(struct usb_device *udev, + enum board_type board_type) +{ + int ret; + char *str; + struct at76_fw_header *fwh; + struct fwentry *fwe = &firmwares[board_type]; + + mutex_lock(&fw_mutex); + + if (fwe->loaded) { + at76_dbg(DBG_FW, "re-using previously loaded fw"); + goto exit; + } + + at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); + ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); + if (ret < 0) { + dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", + fwe->fwname); + dev_printk(KERN_ERR, &udev->dev, + "you may need to download the firmware from " + "http://developer.berlios.de/projects/at76c503a/\n"); + goto exit; + } + + at76_dbg(DBG_FW, "got it."); + fwh = (struct at76_fw_header *)(fwe->fw->data); + + if (fwe->fw->size <= sizeof(*fwh)) { + dev_printk(KERN_ERR, &udev->dev, + "firmware is too short (0x%zx)\n", fwe->fw->size); + goto exit; + } + + /* CRC currently not checked */ + fwe->board_type = le32_to_cpu(fwh->board_type); + if (fwe->board_type != board_type) { + dev_printk(KERN_ERR, &udev->dev, + "board type mismatch, requested %u, got %u\n", + board_type, fwe->board_type); + goto exit; + } + + fwe->fw_version.major = fwh->major; + fwe->fw_version.minor = fwh->minor; + fwe->fw_version.patch = fwh->patch; + fwe->fw_version.build = fwh->build; + + str = (char *)fwh + le32_to_cpu(fwh->str_offset); + fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); + fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); + fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); + fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); + + fwe->loaded = 1; + + dev_printk(KERN_DEBUG, &udev->dev, + "using firmware %s (version %d.%d.%d-%d)\n", + fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); + + at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, + le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), + le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); + at76_dbg(DBG_DEVSTART, "firmware id %s", str); + +exit: + mutex_unlock(&fw_mutex); + + if (fwe->loaded) + return fwe; + else + return NULL; +} + +static void at76_mac80211_tx_callback(struct urb *urb) +{ + struct at76_priv *priv = urb->context; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + switch (urb->status) { + case 0: + /* success */ + info->flags |= IEEE80211_TX_STAT_ACK; + break; + case -ENOENT: + case -ECONNRESET: + /* fail, urb has been unlinked */ + /* FIXME: add error message */ + break; + default: + at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", + __func__, urb->status); + break; + } + + memset(&info->status, 0, sizeof(info->status)); + + ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); + + priv->tx_skb = NULL; + + ieee80211_wake_queues(priv->hw); +} + +static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct at76_priv *priv = hw->priv; + struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + int padding, submit_len, ret; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + if (priv->tx_urb->status == -EINPROGRESS) { + printk(KERN_ERR "%s: %s called while tx urb is pending\n", + wiphy_name(priv->hw->wiphy), __func__); + return NETDEV_TX_BUSY; + } + + ieee80211_stop_queues(hw); + + at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ + + WARN_ON(priv->tx_skb != NULL); + + priv->tx_skb = skb; + padding = at76_calc_padding(skb->len); + submit_len = AT76_TX_HDRLEN + skb->len + padding; + + /* setup 'Atmel' header */ + memset(tx_buffer, 0, sizeof(*tx_buffer)); + tx_buffer->padding = padding; + tx_buffer->wlength = cpu_to_le16(skb->len); + tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; + memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); + memcpy(tx_buffer->packet, skb->data, skb->len); + + at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", + wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), + tx_buffer->padding, tx_buffer->tx_rate); + + /* send stuff */ + at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, + "%s(): tx_buffer %d bytes:", __func__, submit_len); + usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, + submit_len, at76_mac80211_tx_callback, priv); + ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); + if (ret) { + printk(KERN_ERR "%s: error in tx submit urb: %d\n", + wiphy_name(priv->hw->wiphy), ret); + if (ret == -EINVAL) + printk(KERN_ERR + "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", + wiphy_name(priv->hw->wiphy), priv->tx_urb, + priv->tx_urb->hcpriv, priv->tx_urb->complete); + } + + return 0; +} + +static int at76_mac80211_start(struct ieee80211_hw *hw) +{ + struct at76_priv *priv = hw->priv; + int ret; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + ret = at76_submit_rx_urb(priv); + if (ret < 0) { + printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + goto error; + } + + at76_startup_device(priv); + + at76_start_monitor(priv); + +error: + mutex_unlock(&priv->mtx); + + return 0; +} + +static void at76_mac80211_stop(struct ieee80211_hw *hw) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + if (!priv->device_unplugged) { + /* We are called by "ifconfig ethX down", not because the + * device is not available anymore. */ + at76_set_radio(priv, 0); + + /* We unlink rx_urb because at76_open() re-submits it. + * If unplugged, at76_delete_device() takes care of it. */ + usb_kill_urb(priv->rx_urb); + } + + mutex_unlock(&priv->mtx); +} + +static int at76_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct at76_priv *priv = hw->priv; + int ret = 0; + + at76_dbg(DBG_MAC80211, "%s()", __func__); + + mutex_lock(&priv->mtx); + + switch (conf->type) { + case NL80211_IFTYPE_STATION: + priv->iw_mode = IW_MODE_INFRA; + break; + default: + ret = -EOPNOTSUPP; + goto exit; + } + +exit: + mutex_unlock(&priv->mtx); + + return ret; +} + +static void at76_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + at76_dbg(DBG_MAC80211, "%s()", __func__); +} + +static int at76_join(struct at76_priv *priv) +{ + struct at76_req_join join; + int ret; + + memset(&join, 0, sizeof(struct at76_req_join)); + memcpy(join.essid, priv->essid, priv->essid_size); + join.essid_size = priv->essid_size; + memcpy(join.bssid, priv->bssid, ETH_ALEN); + join.bss_type = INFRASTRUCTURE_MODE; + join.channel = priv->channel; + join.timeout = cpu_to_le16(2000); + + at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); + ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, + sizeof(struct at76_req_join)); + + if (ret < 0) { + printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return 0; + } + + ret = at76_wait_completion(priv, CMD_JOIN); + at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); + if (ret != CMD_STATUS_COMPLETE) { + printk(KERN_ERR "%s: at76_wait_completion failed: %d\n", + wiphy_name(priv->hw->wiphy), ret); + return 0; + } + + at76_set_pm_mode(priv); + + return 0; +} + +static void at76_dwork_hw_scan(struct work_struct *work) +{ + struct at76_priv *priv = container_of(work, struct at76_priv, + dwork_hw_scan.work); + int ret; + + mutex_lock(&priv->mtx); + + ret = at76_get_cmd_status(priv->udev, CMD_SCAN); + at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); + + /* FIXME: add maximum time for scan to complete */ + + if (ret != CMD_STATUS_COMPLETE) { + queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, + SCAN_POLL_INTERVAL); + goto exit; + } + + ieee80211_scan_completed(priv->hw); + + if (is_valid_ether_addr(priv->bssid)) + at76_join(priv); + + ieee80211_wake_queues(priv->hw); + +exit: + mutex_unlock(&priv->mtx); +} + +static int at76_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) +{ + struct at76_priv *priv = hw->priv; + struct at76_req_scan scan; + int ret; + + at76_dbg(DBG_MAC80211, "%s():", __func__); + at76_dbg_dump(DBG_MAC80211, ssid, len, "ssid %zd bytes:", len); + + mutex_lock(&priv->mtx); + + ieee80211_stop_queues(hw); + + memset(&scan, 0, sizeof(struct at76_req_scan)); + memset(scan.bssid, 0xFF, ETH_ALEN); + scan.scan_type = SCAN_TYPE_ACTIVE; + if (priv->essid_size > 0) { + memcpy(scan.essid, ssid, len); + scan.essid_size = len; + } + scan.min_channel_time = cpu_to_le16(priv->scan_min_time); + scan.max_channel_time = cpu_to_le16(priv->scan_max_time); + scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); + scan.international_scan = 0; + + at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); + ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); + + if (ret < 0) { + err("CMD_SCAN failed: %d", ret); + goto exit; + } + + queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, + SCAN_POLL_INTERVAL); + +exit: + mutex_unlock(&priv->mtx); + + return 0; +} + +static int at76_config(struct ieee80211_hw *hw, u32 changed) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d", + __func__, hw->conf.channel->hw_value, + hw->conf.radio_enabled); + at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); + + mutex_lock(&priv->mtx); + + priv->channel = hw->conf.channel->hw_value; + + if (is_valid_ether_addr(priv->bssid)) + at76_join(priv); + else + at76_start_monitor(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +static int at76_config_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_if_conf *conf) +{ + struct at76_priv *priv = hw->priv; + + at76_dbg(DBG_MAC80211, "%s():", __func__); + at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); + + mutex_lock(&priv->mtx); + + memcpy(priv->bssid, conf->bssid, ETH_ALEN); + + if (is_valid_ether_addr(priv->bssid)) + /* mac80211 is joining a bss */ + at76_join(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +/* must be atomic */ +static void at76_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, int mc_count, + struct dev_addr_list *mc_list) +{ + struct at76_priv *priv = hw->priv; + int flags; + + at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " + "total_flags=0x%08x mc_count=%d", + __func__, changed_flags, *total_flags, mc_count); + + flags = changed_flags & AT76_SUPPORTED_FILTERS; + *total_flags = AT76_SUPPORTED_FILTERS; + + /* FIXME: access to priv->promisc should be protected with + * priv->mtx, but it's impossible because this function needs to be + * atomic */ + + if (flags && !priv->promisc) { + /* mac80211 wants us to enable promiscuous mode */ + priv->promisc = 1; + } else if (!flags && priv->promisc) { + /* we need to disable promiscuous mode */ + priv->promisc = 0; + } else + return; + + queue_work(hw->workqueue, &priv->work_set_promisc); +} + +static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct at76_priv *priv = hw->priv; + + int i; + + at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d " + "key->keylen %d", + __func__, cmd, key->alg, key->keyidx, key->keylen); + + if (key->alg != ALG_WEP) + return -EOPNOTSUPP; + + key->hw_key_idx = key->keyidx; + + mutex_lock(&priv->mtx); + + switch (cmd) { + case SET_KEY: + memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); + priv->wep_keys_len[key->keyidx] = key->keylen; + + /* FIXME: find out how to do this properly */ + priv->wep_key_id = key->keyidx; + + break; + case DISABLE_KEY: + default: + priv->wep_keys_len[key->keyidx] = 0; + break; + } + + priv->wep_enabled = 0; + + for (i = 0; i < WEP_KEYS; i++) { + if (priv->wep_keys_len[i] != 0) + priv->wep_enabled = 1; + } + + at76_startup_device(priv); + + mutex_unlock(&priv->mtx); + + return 0; +} + +static const struct ieee80211_ops at76_ops = { + .tx = at76_mac80211_tx, + .add_interface = at76_add_interface, + .remove_interface = at76_remove_interface, + .config = at76_config, + .config_interface = at76_config_interface, + .configure_filter = at76_configure_filter, + .start = at76_mac80211_start, + .stop = at76_mac80211_stop, + .hw_scan = at76_hw_scan, + .set_key = at76_set_key, +}; + +/* Allocate network device and initialize private data */ +static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) +{ + struct ieee80211_hw *hw; + struct at76_priv *priv; + + hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); + if (!hw) { + printk(KERN_ERR DRIVER_NAME ": could not register" + " ieee80211_hw\n"); + return NULL; + } + + priv = hw->priv; + priv->hw = hw; + + priv->udev = udev; + + mutex_init(&priv->mtx); + INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); + INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); + INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); + + priv->rx_tasklet.func = at76_rx_tasklet; + priv->rx_tasklet.data = 0; + + priv->pm_mode = AT76_PM_OFF; + priv->pm_period = 0; + + /* unit us */ + priv->hw->channel_change_time = 100000; + + return priv; +} + +static int at76_alloc_urbs(struct at76_priv *priv, + struct usb_interface *interface) +{ + struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; + int i; + int buffer_size; + struct usb_host_interface *iface_desc; + + at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); + + at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, + interface->altsetting[0].desc.bNumEndpoints); + + ep_in = NULL; + ep_out = NULL; + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { + endpoint = &iface_desc->endpoint[i].desc; + + at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", + __func__, i, endpoint->bEndpointAddress, + endpoint->bmAttributes); + + if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) + ep_in = endpoint; + + if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) + ep_out = endpoint; + } + + if (!ep_in || !ep_out) { + dev_printk(KERN_ERR, &interface->dev, + "bulk endpoints missing\n"); + return -ENXIO; + } + + priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); + priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); + + priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!priv->rx_urb || !priv->tx_urb) { + dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); + return -ENOMEM; + } + + buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; + priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!priv->bulk_out_buffer) { + dev_printk(KERN_ERR, &interface->dev, + "cannot allocate output buffer\n"); + return -ENOMEM; + } + + at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); + + return 0; +} + +static struct ieee80211_rate at76_rates[] = { + { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, + { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, + { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, + { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, +}; + +static struct ieee80211_channel at76_channels[] = { + { .center_freq = 2412, .hw_value = 1 }, + { .center_freq = 2417, .hw_value = 2 }, + { .center_freq = 2422, .hw_value = 3 }, + { .center_freq = 2427, .hw_value = 4 }, + { .center_freq = 2432, .hw_value = 5 }, + { .center_freq = 2437, .hw_value = 6 }, + { .center_freq = 2442, .hw_value = 7 }, + { .center_freq = 2447, .hw_value = 8 }, + { .center_freq = 2452, .hw_value = 9 }, + { .center_freq = 2457, .hw_value = 10 }, + { .center_freq = 2462, .hw_value = 11 }, + { .center_freq = 2467, .hw_value = 12 }, + { .center_freq = 2472, .hw_value = 13 }, + { .center_freq = 2484, .hw_value = 14 } +}; + +static struct ieee80211_supported_band at76_supported_band = { + .channels = at76_channels, + .n_channels = ARRAY_SIZE(at76_channels), + .bitrates = at76_rates, + .n_bitrates = ARRAY_SIZE(at76_rates), +}; + +/* Register network device and initialize the hardware */ +static int at76_init_new_device(struct at76_priv *priv, + struct usb_interface *interface) +{ + int ret; + + /* set up the endpoint information */ + /* check out the endpoints */ + + at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", + interface->cur_altsetting->desc.bNumEndpoints); + + ret = at76_alloc_urbs(priv, interface); + if (ret < 0) + goto exit; + + /* MAC address */ + ret = at76_get_hw_config(priv); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "cannot get MAC address\n"); + goto exit; + } + + priv->domain = at76_get_reg_domain(priv->regulatory_domain); + + priv->channel = DEF_CHANNEL; + priv->iw_mode = IW_MODE_INFRA; + priv->rts_threshold = DEF_RTS_THRESHOLD; + priv->frag_threshold = DEF_FRAG_THRESHOLD; + priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; + priv->txrate = TX_RATE_AUTO; + priv->preamble_type = PREAMBLE_TYPE_LONG; + priv->beacon_period = 100; + priv->auth_mode = WLAN_AUTH_OPEN; + priv->scan_min_time = DEF_SCAN_MIN_TIME; + priv->scan_max_time = DEF_SCAN_MAX_TIME; + priv->scan_mode = SCAN_TYPE_ACTIVE; + + /* mac80211 initialisation */ + priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); + priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band; + priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | + IEEE80211_HW_SIGNAL_UNSPEC; + + SET_IEEE80211_DEV(priv->hw, &interface->dev); + SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); + + ret = ieee80211_register_hw(priv->hw); + if (ret) { + printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", + ret); + goto exit; + } + + priv->mac80211_registered = 1; + + printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", + wiphy_name(priv->hw->wiphy), + interface->dev.bus_id, mac2str(priv->mac_addr), + priv->fw_version.major, priv->fw_version.minor, + priv->fw_version.patch, priv->fw_version.build); + printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", + wiphy_name(priv->hw->wiphy), + priv->regulatory_domain, priv->domain->name); + +exit: + return ret; +} + +static void at76_delete_device(struct at76_priv *priv) +{ + at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); + + /* The device is gone, don't bother turning it off */ + priv->device_unplugged = 1; + + if (priv->mac80211_registered) + ieee80211_unregister_hw(priv->hw); + + /* assuming we used keventd, it must quiesce too */ + flush_scheduled_work(); + + kfree(priv->bulk_out_buffer); + + if (priv->tx_urb) { + usb_kill_urb(priv->tx_urb); + usb_free_urb(priv->tx_urb); + } + if (priv->rx_urb) { + usb_kill_urb(priv->rx_urb); + usb_free_urb(priv->rx_urb); + } + + at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); + + if (priv->rx_skb) + kfree_skb(priv->rx_skb); + + usb_put_dev(priv->udev); + + at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", + __func__); + ieee80211_free_hw(priv->hw); + + at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); +} + +static int at76_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + int ret; + struct at76_priv *priv; + struct fwentry *fwe; + struct usb_device *udev; + int op_mode; + int need_ext_fw = 0; + struct mib_fw_version fwv; + int board_type = (int)id->driver_info; + + udev = usb_get_dev(interface_to_usbdev(interface)); + + /* Load firmware into kernel memory */ + fwe = at76_load_firmware(udev, board_type); + if (!fwe) { + ret = -ENOENT; + goto error; + } + + op_mode = at76_get_op_mode(udev); + + at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); + + /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? + we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ + + if (op_mode == OPMODE_HW_CONFIG_MODE) { + dev_printk(KERN_ERR, &interface->dev, + "cannot handle a device in HW_CONFIG_MODE\n"); + ret = -EBUSY; + goto error; + } + + if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH + && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { + /* download internal firmware part */ + dev_printk(KERN_DEBUG, &interface->dev, + "downloading internal firmware\n"); + ret = at76_load_internal_fw(udev, fwe); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "error %d downloading internal firmware\n", + ret); + goto error; + } + usb_put_dev(udev); + return ret; + } + + /* Internal firmware already inside the device. Get firmware + * version to test if external firmware is loaded. + * This works only for newer firmware, e.g. the Intersil 0.90.x + * says "control timeout on ep0in" and subsequent + * at76_get_op_mode() fail too :-( */ + + /* if version >= 0.100.x.y or device with built-in flash we can + * query the device for the fw version */ + if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) + || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { + ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); + if (ret < 0 || (fwv.major | fwv.minor) == 0) + need_ext_fw = 1; + } else + /* No way to check firmware version, reload to be sure */ + need_ext_fw = 1; + + if (need_ext_fw) { + dev_printk(KERN_DEBUG, &interface->dev, + "downloading external firmware\n"); + + ret = at76_load_external_fw(udev, fwe); + if (ret) + goto error; + + /* Re-check firmware version */ + ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); + if (ret < 0) { + dev_printk(KERN_ERR, &interface->dev, + "error %d getting firmware version\n", ret); + goto error; + } + } + + priv = at76_alloc_new_device(udev); + if (!priv) { + ret = -ENOMEM; + goto error; + } + + usb_set_intfdata(interface, priv); + + memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); + priv->board_type = board_type; + + ret = at76_init_new_device(priv, interface); + if (ret < 0) + at76_delete_device(priv); + + return ret; + +error: + usb_put_dev(udev); + return ret; +} + +static void at76_disconnect(struct usb_interface *interface) +{ + struct at76_priv *priv; + + priv = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + /* Disconnect after loading internal firmware */ + if (!priv) + return; + + printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy)); + at76_delete_device(priv); + dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); +} + +/* Structure for registering this driver with the USB subsystem */ +static struct usb_driver at76_driver = { + .name = DRIVER_NAME, + .probe = at76_probe, + .disconnect = at76_disconnect, + .id_table = dev_table, +}; + +static int __init at76_mod_init(void) +{ + int result; + + printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); + + mutex_init(&fw_mutex); + + /* register this driver with the USB subsystem */ + result = usb_register(&at76_driver); + if (result < 0) + printk(KERN_ERR DRIVER_NAME + ": usb_register failed (status %d)\n", result); + + led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); + return result; +} + +static void __exit at76_mod_exit(void) +{ + int i; + + printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); + usb_deregister(&at76_driver); + for (i = 0; i < ARRAY_SIZE(firmwares); i++) { + if (firmwares[i].fw) + release_firmware(firmwares[i].fw); + } + led_trigger_unregister_simple(ledtrig_tx); +} + +module_param_named(debug, at76_debug, int, 0600); +MODULE_PARM_DESC(debug, "Debugging level"); + +module_init(at76_mod_init); +module_exit(at76_mod_exit); + +MODULE_AUTHOR("Oliver Kurth "); +MODULE_AUTHOR("Joerg Albert "); +MODULE_AUTHOR("Alex "); +MODULE_AUTHOR("Nick Jones"); +MODULE_AUTHOR("Balint Seeber "); +MODULE_AUTHOR("Pavel Roskin "); +MODULE_AUTHOR("Guido Guenther "); +MODULE_AUTHOR("Kalle Valo "); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/wireless/at76c50x-usb.h b/drivers/net/wireless/at76c50x-usb.h new file mode 100644 index 000000000000..1ec5ccffdbc0 --- /dev/null +++ b/drivers/net/wireless/at76c50x-usb.h @@ -0,0 +1,463 @@ +/* + * Copyright (c) 2002,2003 Oliver Kurth + * (c) 2003,2004 Joerg Albert + * (c) 2007 Guido Guenther + * + * 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 driver was based on information from the Sourceforge driver + * released and maintained by Atmel: + * + * http://sourceforge.net/projects/atmelwlandriver/ + * + * Although the code was completely re-written, + * it would have been impossible without Atmel's decision to + * release an Open Source driver (unfortunately the firmware was + * kept binary only). Thanks for that decision to Atmel! + */ + +#ifndef _AT76_USB_H +#define _AT76_USB_H + +/* Board types */ +enum board_type { + BOARD_503_ISL3861 = 1, + BOARD_503_ISL3863 = 2, + BOARD_503 = 3, + BOARD_503_ACC = 4, + BOARD_505 = 5, + BOARD_505_2958 = 6, + BOARD_505A = 7, + BOARD_505AMX = 8 +}; + +#define CMD_STATUS_IDLE 0x00 +#define CMD_STATUS_COMPLETE 0x01 +#define CMD_STATUS_UNKNOWN 0x02 +#define CMD_STATUS_INVALID_PARAMETER 0x03 +#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04 +#define CMD_STATUS_TIME_OUT 0x07 +#define CMD_STATUS_IN_PROGRESS 0x08 +#define CMD_STATUS_HOST_FAILURE 0xff +#define CMD_STATUS_SCAN_FAILED 0xf0 + +/* answers to get op mode */ +#define OPMODE_NONE 0x00 +#define OPMODE_NORMAL_NIC_WITH_FLASH 0x01 +#define OPMODE_HW_CONFIG_MODE 0x02 +#define OPMODE_DFU_MODE_WITH_FLASH 0x03 +#define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04 + +#define CMD_SET_MIB 0x01 +#define CMD_GET_MIB 0x02 +#define CMD_SCAN 0x03 +#define CMD_JOIN 0x04 +#define CMD_START_IBSS 0x05 +#define CMD_RADIO_ON 0x06 +#define CMD_RADIO_OFF 0x07 +#define CMD_STARTUP 0x0B + +#define MIB_LOCAL 0x01 +#define MIB_MAC_ADDR 0x02 +#define MIB_MAC 0x03 +#define MIB_MAC_MGMT 0x05 +#define MIB_MAC_WEP 0x06 +#define MIB_PHY 0x07 +#define MIB_FW_VERSION 0x08 +#define MIB_MDOMAIN 0x09 + +#define ADHOC_MODE 1 +#define INFRASTRUCTURE_MODE 2 + +/* values for struct mib_local, field preamble_type */ +#define PREAMBLE_TYPE_LONG 0 +#define PREAMBLE_TYPE_SHORT 1 +#define PREAMBLE_TYPE_AUTO 2 + +/* values for tx_rate */ +#define TX_RATE_1MBIT 0 +#define TX_RATE_2MBIT 1 +#define TX_RATE_5_5MBIT 2 +#define TX_RATE_11MBIT 3 +#define TX_RATE_AUTO 4 + +/* power management modes */ +#define AT76_PM_OFF 1 +#define AT76_PM_ON 2 +#define AT76_PM_SMART 3 + +struct hwcfg_r505 { + u8 cr39_values[14]; + u8 reserved1[14]; + u8 bb_cr[14]; + u8 pidvid[4]; + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + u8 reserved2[14]; + u8 cr15_values[14]; + u8 reserved3[3]; +} __attribute__((packed)); + +struct hwcfg_rfmd { + u8 cr20_values[14]; + u8 cr21_values[14]; + u8 bb_cr[14]; + u8 pidvid[4]; + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + u8 low_power_values[14]; + u8 normal_power_values[14]; + u8 reserved1[3]; +} __attribute__((packed)); + +struct hwcfg_intersil { + u8 mac_addr[ETH_ALEN]; + u8 cr31_values[14]; + u8 cr58_values[14]; + u8 pidvid[4]; + u8 regulatory_domain; + u8 reserved[1]; +} __attribute__((packed)); + +union at76_hwcfg { + struct hwcfg_intersil i; + struct hwcfg_rfmd r3; + struct hwcfg_r505 r5; +}; + +#define WEP_SMALL_KEY_LEN (40 / 8) +#define WEP_LARGE_KEY_LEN (104 / 8) +#define WEP_KEYS (4) + +struct at76_card_config { + u8 exclude_unencrypted; + u8 promiscuous_mode; + u8 short_retry_limit; + u8 encryption_type; + __le16 rts_threshold; + __le16 fragmentation_threshold; /* 256..2346 */ + u8 basic_rate_set[4]; + u8 auto_rate_fallback; /* 0,1 */ + u8 channel; + u8 privacy_invoked; + u8 wep_default_key_id; /* 0..3 */ + u8 current_ssid[32]; + u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN]; + u8 ssid_len; + u8 short_preamble; + __le16 beacon_period; +} __attribute__((packed)); + +struct at76_command { + u8 cmd; + u8 reserved; + __le16 size; + u8 data[0]; +} __attribute__((packed)); + +/* Length of Atmel-specific Rx header before 802.11 frame */ +#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet) + +struct at76_rx_buffer { + __le16 wlength; + u8 rx_rate; + u8 newbss; + u8 fragmentation; + u8 rssi; + u8 link_quality; + u8 noise_level; + __le32 rx_time; + u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; +} __attribute__((packed)); + +/* Length of Atmel-specific Tx header before 802.11 frame */ +#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet) + +struct at76_tx_buffer { + __le16 wlength; + u8 tx_rate; + u8 padding; + u8 reserved[4]; + u8 packet[IEEE80211_MAX_FRAG_THRESHOLD]; +} __attribute__((packed)); + +/* defines for scan_type below */ +#define SCAN_TYPE_ACTIVE 0 +#define SCAN_TYPE_PASSIVE 1 + +struct at76_req_scan { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 scan_type; + u8 channel; + __le16 probe_delay; + __le16 min_channel_time; + __le16 max_channel_time; + u8 essid_size; + u8 international_scan; +} __attribute__((packed)); + +struct at76_req_ibss { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + u8 essid_size; + u8 reserved[3]; +} __attribute__((packed)); + +struct at76_req_join { + u8 bssid[ETH_ALEN]; + u8 essid[32]; + u8 bss_type; + u8 channel; + __le16 timeout; + u8 essid_size; + u8 reserved; +} __attribute__((packed)); + +struct set_mib_buffer { + u8 type; + u8 size; + u8 index; + u8 reserved; + union { + u8 byte; + __le16 word; + u8 addr[ETH_ALEN]; + } data; +} __attribute__((packed)); + +struct mib_local { + u16 reserved0; + u8 beacon_enable; + u8 txautorate_fallback; + u8 reserved1; + u8 ssid_size; + u8 promiscuous_mode; + u16 reserved2; + u8 preamble_type; + u16 reserved3; +} __attribute__((packed)); + +struct mib_mac_addr { + u8 mac_addr[ETH_ALEN]; + u8 res[2]; /* ??? */ + u8 group_addr[4][ETH_ALEN]; + u8 group_addr_status[4]; +} __attribute__((packed)); + +struct mib_mac { + __le32 max_tx_msdu_lifetime; + __le32 max_rx_lifetime; + __le16 frag_threshold; + __le16 rts_threshold; + __le16 cwmin; + __le16 cwmax; + u8 short_retry_time; + u8 long_retry_time; + u8 scan_type; /* active or passive */ + u8 scan_channel; + __le16 probe_delay; /* delay before ProbeReq in active scan, RO */ + __le16 min_channel_time; + __le16 max_channel_time; + __le16 listen_interval; + u8 desired_ssid[32]; + u8 desired_bssid[ETH_ALEN]; + u8 desired_bsstype; /* ad-hoc or infrastructure */ + u8 reserved2; +} __attribute__((packed)); + +struct mib_mac_mgmt { + __le16 beacon_period; + __le16 CFP_max_duration; + __le16 medium_occupancy_limit; + __le16 station_id; /* assoc id */ + __le16 ATIM_window; + u8 CFP_mode; + u8 privacy_option_implemented; + u8 DTIM_period; + u8 CFP_period; + u8 current_bssid[ETH_ALEN]; + u8 current_essid[32]; + u8 current_bss_type; + u8 power_mgmt_mode; + /* rfmd and 505 */ + u8 ibss_change; + u8 res; + u8 multi_domain_capability_implemented; + u8 multi_domain_capability_enabled; + u8 country_string[3]; + u8 reserved[3]; +} __attribute__((packed)); + +struct mib_mac_wep { + u8 privacy_invoked; /* 0 disable encr., 1 enable encr */ + u8 wep_default_key_id; + u8 wep_key_mapping_len; + u8 exclude_unencrypted; + __le32 wep_icv_error_count; + __le32 wep_excluded_count; + u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN]; + u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */ +} __attribute__((packed)); + +struct mib_phy { + __le32 ed_threshold; + + __le16 slot_time; + __le16 sifs_time; + __le16 preamble_length; + __le16 plcp_header_length; + __le16 mpdu_max_length; + __le16 cca_mode_supported; + + u8 operation_rate_set[4]; + u8 channel_id; + u8 current_cca_mode; + u8 phy_type; + u8 current_reg_domain; +} __attribute__((packed)); + +struct mib_fw_version { + u8 major; + u8 minor; + u8 patch; + u8 build; +} __attribute__((packed)); + +struct mib_mdomain { + u8 tx_powerlevel[14]; + u8 channel_list[14]; /* 0 for invalid channels */ +} __attribute__((packed)); + +struct at76_fw_header { + __le32 crc; /* CRC32 of the whole image */ + __le32 board_type; /* firmware compatibility code */ + u8 build; /* firmware build number */ + u8 patch; /* firmware patch level */ + u8 minor; /* firmware minor version */ + u8 major; /* firmware major version */ + __le32 str_offset; /* offset of the copyright string */ + __le32 int_fw_offset; /* internal firmware image offset */ + __le32 int_fw_len; /* internal firmware image length */ + __le32 ext_fw_offset; /* external firmware image offset */ + __le32 ext_fw_len; /* external firmware image length */ +} __attribute__((packed)); + +/* a description of a regulatory domain and the allowed channels */ +struct reg_domain { + u16 code; + char const *name; + u32 channel_map; /* if bit N is set, channel (N+1) is allowed */ +}; + +/* Data for one loaded firmware file */ +struct fwentry { + const char *const fwname; + const struct firmware *fw; + int extfw_size; + int intfw_size; + /* pointer to loaded firmware, no need to free */ + u8 *extfw; /* external firmware, extfw_size bytes long */ + u8 *intfw; /* internal firmware, intfw_size bytes long */ + enum board_type board_type; /* board type */ + struct mib_fw_version fw_version; + int loaded; /* Loaded and parsed successfully */ +}; + +struct at76_priv { + struct usb_device *udev; /* USB device pointer */ + + struct sk_buff *rx_skb; /* skbuff for receiving data */ + struct sk_buff *tx_skb; /* skbuff for transmitting data */ + void *bulk_out_buffer; /* buffer for sending data */ + + struct urb *tx_urb; /* URB for sending data */ + struct urb *rx_urb; /* URB for receiving data */ + + unsigned int tx_pipe; /* bulk out pipe */ + unsigned int rx_pipe; /* bulk in pipe */ + + struct mutex mtx; /* locks this structure */ + + /* work queues */ + struct work_struct work_set_promisc; + struct work_struct work_submit_rx; + struct delayed_work dwork_hw_scan; + + struct tasklet_struct rx_tasklet; + + /* the WEP stuff */ + int wep_enabled; /* 1 if WEP is enabled */ + int wep_key_id; /* key id to be used */ + u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */ + u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */ + + int channel; + int iw_mode; + u8 bssid[ETH_ALEN]; + u8 essid[IW_ESSID_MAX_SIZE]; + int essid_size; + int radio_on; + int promisc; + + int preamble_type; /* 0 - long, 1 - short, 2 - auto */ + int auth_mode; /* authentication type: 0 open, 1 shared key */ + int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */ + int frag_threshold; /* threshold for fragmentation of tx packets */ + int rts_threshold; /* threshold for RTS mechanism */ + int short_retry_limit; + + int scan_min_time; /* scan min channel time */ + int scan_max_time; /* scan max channel time */ + int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */ + int scan_need_any; /* if set, need to scan for any ESSID */ + + u16 assoc_id; /* current association ID, if associated */ + + u8 pm_mode; /* power management mode */ + u32 pm_period; /* power management period in microseconds */ + + struct reg_domain const *domain; /* reg domain description */ + + /* These fields contain HW config provided by the device (not all of + * these fields are used by all board types) */ + u8 mac_addr[ETH_ALEN]; + u8 regulatory_domain; + + struct at76_card_config card_config; + + enum board_type board_type; + struct mib_fw_version fw_version; + + unsigned int device_unplugged:1; + unsigned int netdev_registered:1; + struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */ + + int beacon_period; /* period of mgmt beacons, Kus */ + + struct ieee80211_hw *hw; + int mac80211_registered; +}; + +#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS + +#define SCAN_POLL_INTERVAL (HZ / 4) + +#define CMD_COMPLETION_TIMEOUT (5 * HZ) + +#define DEF_RTS_THRESHOLD 1536 +#define DEF_FRAG_THRESHOLD 1536 +#define DEF_SHORT_RETRY_LIMIT 8 +#define DEF_CHANNEL 10 +#define DEF_SCAN_MIN_TIME 10 +#define DEF_SCAN_MAX_TIME 120 + +/* the max padding size for tx in bytes (see calc_padding) */ +#define MAX_PADDING_SIZE 53 + +#endif /* _AT76_USB_H */ -- cgit v1.2.3 From a66098daacee2f354dab311b58011e7076aa248c Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 10 Mar 2009 10:13:33 +0100 Subject: mwl8k: Marvell TOPDOG wireless driver Add a driver for Marvell 88w8xxx TOPDOG PCI/PCIe wireless parts. This initial version supports the 88w8687 802.11b/g PCIe part on channels 1-11, and only STA mode is currently implemented. Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/Kconfig | 9 + drivers/net/wireless/Makefile | 2 + drivers/net/wireless/mwl8k.c | 3789 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 3800 insertions(+) create mode 100644 drivers/net/wireless/mwl8k.c (limited to 'drivers/net/wireless/Kconfig') diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 1294175cab20..612fffe100a6 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -473,6 +473,15 @@ config MAC80211_HWSIM To compile this driver as a module, choose M here: the module will be called mac80211_hwsim. If unsure, say N. +config MWL8K + tristate "Marvell 88W8xxx PCI/PCIe Wireless support" + depends on MAC80211 && PCI && WLAN_80211 && EXPERIMENTAL + ---help--- + This driver supports Marvell TOPDOG 802.11 wireless cards. + + To compile this driver as a module, choose M here: the module + will be called mwl8k. If unsure, say N. + source "drivers/net/wireless/p54/Kconfig" source "drivers/net/wireless/ath5k/Kconfig" source "drivers/net/wireless/ath9k/Kconfig" diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index e2574cafe051..d780487c420f 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -48,6 +48,8 @@ obj-$(CONFIG_LIBERTAS_THINFIRM) += libertas_tf/ obj-$(CONFIG_ADM8211) += adm8211.o +obj-$(CONFIG_MWL8K) += mwl8k.o + obj-$(CONFIG_IWLWIFI) += iwlwifi/ obj-$(CONFIG_RT2X00) += rt2x00/ diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c new file mode 100644 index 000000000000..57a0268d1bae --- /dev/null +++ b/drivers/net/wireless/mwl8k.c @@ -0,0 +1,3789 @@ +/* + * drivers/net/wireless/mwl8k.c driver for Marvell TOPDOG 802.11 Wireless cards + * + * Copyright (C) 2008 Marvell Semiconductor Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver" +#define MWL8K_NAME KBUILD_MODNAME +#define MWL8K_VERSION "0.9.1" + +MODULE_DESCRIPTION(MWL8K_DESC); +MODULE_VERSION(MWL8K_VERSION); +MODULE_AUTHOR("Lennert Buytenhek "); +MODULE_LICENSE("GPL"); + +static DEFINE_PCI_DEVICE_TABLE(mwl8k_table) = { + { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = 8687, }, + { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = 8687, }, + { } +}; +MODULE_DEVICE_TABLE(pci, mwl8k_table); + +#define IEEE80211_ADDR_LEN ETH_ALEN + +/* Register definitions */ +#define MWL8K_HIU_GEN_PTR 0x00000c10 +#define MWL8K_MODE_STA 0x0000005a +#define MWL8K_MODE_AP 0x000000a5 +#define MWL8K_HIU_INT_CODE 0x00000c14 +#define MWL8K_FWSTA_READY 0xf0f1f2f4 +#define MWL8K_FWAP_READY 0xf1f2f4a5 +#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 +#define MWL8K_HIU_SCRATCH 0x00000c40 + +/* Host->device communications */ +#define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18 +#define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c +#define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 +#define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 +#define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 +#define MWL8K_H2A_INT_DUMMY (1 << 20) +#define MWL8K_H2A_INT_RESET (1 << 15) +#define MWL8K_H2A_INT_PS (1 << 2) +#define MWL8K_H2A_INT_DOORBELL (1 << 1) +#define MWL8K_H2A_INT_PPA_READY (1 << 0) + +/* Device->host communications */ +#define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c +#define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30 +#define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 +#define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 +#define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c +#define MWL8K_A2H_INT_DUMMY (1 << 20) +#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) +#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) +#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) +#define MWL8K_A2H_INT_RADIO_ON (1 << 6) +#define MWL8K_A2H_INT_RADIO_OFF (1 << 5) +#define MWL8K_A2H_INT_MAC_EVENT (1 << 3) +#define MWL8K_A2H_INT_OPC_DONE (1 << 2) +#define MWL8K_A2H_INT_RX_READY (1 << 1) +#define MWL8K_A2H_INT_TX_DONE (1 << 0) + +#define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ + MWL8K_A2H_INT_CHNL_SWITCHED | \ + MWL8K_A2H_INT_QUEUE_EMPTY | \ + MWL8K_A2H_INT_RADAR_DETECT | \ + MWL8K_A2H_INT_RADIO_ON | \ + MWL8K_A2H_INT_RADIO_OFF | \ + MWL8K_A2H_INT_MAC_EVENT | \ + MWL8K_A2H_INT_OPC_DONE | \ + MWL8K_A2H_INT_RX_READY | \ + MWL8K_A2H_INT_TX_DONE) + +/* WME stream classes */ +#define WME_AC_BE 0 /* best effort */ +#define WME_AC_BK 1 /* background */ +#define WME_AC_VI 2 /* video */ +#define WME_AC_VO 3 /* voice */ + +#define MWL8K_RX_QUEUES 1 +#define MWL8K_TX_QUEUES 4 + +struct mwl8k_rx_queue { + int rx_desc_count; + + /* hw receives here */ + int rx_head; + + /* refill descs here */ + int rx_tail; + + struct mwl8k_rx_desc *rx_desc_area; + dma_addr_t rx_desc_dma; + struct sk_buff **rx_skb; +}; + +struct mwl8k_skb { + /* + * The DMA engine requires a modification to the payload. + * If the skbuff is shared/cloned, it needs to be unshared. + * This method is used to ensure the stack always gets back + * the skbuff it sent for transmission. + */ + struct sk_buff *clone; + struct sk_buff *skb; +}; + +struct mwl8k_tx_queue { + /* hw transmits here */ + int tx_head; + + /* sw appends here */ + int tx_tail; + + struct ieee80211_tx_queue_stats tx_stats; + struct mwl8k_tx_desc *tx_desc_area; + dma_addr_t tx_desc_dma; + struct mwl8k_skb *tx_skb; +}; + +/* Pointers to the firmware data and meta information about it. */ +struct mwl8k_firmware { + /* Microcode */ + struct firmware *ucode; + + /* Boot helper code */ + struct firmware *helper; +}; + +struct mwl8k_priv { + void __iomem *regs; + struct ieee80211_hw *hw; + + struct pci_dev *pdev; + u8 name[16]; + /* firmware access lock */ + spinlock_t fw_lock; + + /* firmware files and meta data */ + struct mwl8k_firmware fw; + u32 part_num; + + /* lock held over TX and TX reap */ + spinlock_t tx_lock; + u32 int_mask; + + struct ieee80211_vif *vif; + struct list_head vif_list; + + struct ieee80211_channel *current_channel; + + /* power management status cookie from firmware */ + u32 *cookie; + dma_addr_t cookie_dma; + + u16 num_mcaddrs; + u16 region_code; + u8 hw_rev; + __le32 fw_rev; + u32 wep_enabled; + + /* + * Running count of TX packets in flight, to avoid + * iterating over the transmit rings each time. + */ + int pending_tx_pkts; + + struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; + struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; + + /* PHY parameters */ + struct ieee80211_supported_band band; + struct ieee80211_channel channels[14]; + struct ieee80211_rate rates[12]; + + /* RF preamble: Short, Long or Auto */ + u8 radio_preamble; + u8 radio_state; + + /* WMM MODE 1 for enabled; 0 for disabled */ + bool wmm_mode; + + /* Set if PHY config is in progress */ + bool inconfig; + + /* XXX need to convert this to handle multiple interfaces */ + bool capture_beacon; + u8 capture_bssid[IEEE80211_ADDR_LEN]; + struct sk_buff *beacon_skb; + + /* + * This FJ worker has to be global as it is scheduled from the + * RX handler. At this point we don't know which interface it + * belongs to until the list of bssids waiting to complete join + * is checked. + */ + struct work_struct finalize_join_worker; + + /* Tasklet to reclaim TX descriptors and buffers after tx */ + struct tasklet_struct tx_reclaim_task; + + /* Work thread to serialize configuration requests */ + struct workqueue_struct *config_wq; + struct completion *hostcmd_wait; + struct completion *tx_wait; +}; + +/* Per interface specific private data */ +struct mwl8k_vif { + struct list_head node; + + /* backpointer to parent config block */ + struct mwl8k_priv *priv; + + /* BSS config of AP or IBSS from mac80211*/ + struct ieee80211_bss_conf bss_info; + + /* BSSID of AP or IBSS */ + u8 bssid[IEEE80211_ADDR_LEN]; + u8 mac_addr[IEEE80211_ADDR_LEN]; + + /* + * Subset of supported legacy rates. + * Intersection of AP and STA supported rates. + */ + struct ieee80211_rate legacy_rates[12]; + + /* number of supported legacy rates */ + u8 legacy_nrates; + + /* Number of supported MCS rates. Work in progress */ + u8 mcs_nrates; + + /* Index into station database.Returned by update_sta_db call */ + u8 peer_id; + + /* Non AMPDU sequence number assigned by driver */ + u16 seqno; + + /* Note:There is no channel info, + * refer to the master channel info in priv + */ +}; + +#define MWL8K_VIF(_vif) (struct mwl8k_vif *)(&((_vif)->drv_priv)) + +static const struct ieee80211_channel mwl8k_channels[] = { + { .center_freq = 2412, .hw_value = 1, }, + { .center_freq = 2417, .hw_value = 2, }, + { .center_freq = 2422, .hw_value = 3, }, + { .center_freq = 2427, .hw_value = 4, }, + { .center_freq = 2432, .hw_value = 5, }, + { .center_freq = 2437, .hw_value = 6, }, + { .center_freq = 2442, .hw_value = 7, }, + { .center_freq = 2447, .hw_value = 8, }, + { .center_freq = 2452, .hw_value = 9, }, + { .center_freq = 2457, .hw_value = 10, }, + { .center_freq = 2462, .hw_value = 11, }, +}; + +static const struct ieee80211_rate mwl8k_rates[] = { + { .bitrate = 10, .hw_value = 2, }, + { .bitrate = 20, .hw_value = 4, }, + { .bitrate = 55, .hw_value = 11, }, + { .bitrate = 60, .hw_value = 12, }, + { .bitrate = 90, .hw_value = 18, }, + { .bitrate = 110, .hw_value = 22, }, + { .bitrate = 120, .hw_value = 24, }, + { .bitrate = 180, .hw_value = 36, }, + { .bitrate = 240, .hw_value = 48, }, + { .bitrate = 360, .hw_value = 72, }, + { .bitrate = 480, .hw_value = 96, }, + { .bitrate = 540, .hw_value = 108, }, +}; + +/* Radio settings */ +#define MWL8K_RADIO_FORCE 0x2 +#define MWL8K_RADIO_ENABLE 0x1 +#define MWL8K_RADIO_DISABLE 0x0 +#define MWL8K_RADIO_AUTO_PREAMBLE 0x0005 +#define MWL8K_RADIO_SHORT_PREAMBLE 0x0003 +#define MWL8K_RADIO_LONG_PREAMBLE 0x0001 + +/* WMM */ +#define MWL8K_WMM_ENABLE 1 +#define MWL8K_WMM_DISABLE 0 + +#define MWL8K_RADIO_DEFAULT_PREAMBLE MWL8K_RADIO_LONG_PREAMBLE + +/* Slot time */ + +/* Short Slot: 9us slot time */ +#define MWL8K_SHORT_SLOTTIME 1 + +/* Long slot: 20us slot time */ +#define MWL8K_LONG_SLOTTIME 0 + +/* Set or get info from Firmware */ +#define MWL8K_CMD_SET 0x0001 +#define MWL8K_CMD_GET 0x0000 + +/* Firmware command codes */ +#define MWL8K_CMD_CODE_DNLD 0x0001 +#define MWL8K_CMD_GET_HW_SPEC 0x0003 +#define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010 +#define MWL8K_CMD_GET_STAT 0x0014 +#define MWL8K_CMD_RADIO_CONTROL 0x001C +#define MWL8K_CMD_RF_TX_POWER 0x001E +#define MWL8K_CMD_SET_PRE_SCAN 0x0107 +#define MWL8K_CMD_SET_POST_SCAN 0x0108 +#define MWL8K_CMD_SET_RF_CHANNEL 0x010A +#define MWL8K_CMD_SET_SLOT 0x0114 +#define MWL8K_CMD_MIMO_CONFIG 0x0125 +#define MWL8K_CMD_ENABLE_SNIFFER 0x0150 +#define MWL8K_CMD_SET_WMM_MODE 0x0123 +#define MWL8K_CMD_SET_EDCA_PARAMS 0x0115 +#define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111 +#define MWL8K_CMD_UPDATE_STADB 0x1123 +#define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203 +#define MWL8K_CMD_SET_LINKADAPT_MODE 0x0129 +#define MWL8K_CMD_SET_AID 0x010d +#define MWL8K_CMD_SET_RATE 0x0110 +#define MWL8K_CMD_USE_FIXED_RATE 0x0126 +#define MWL8K_CMD_RTS_THRESHOLD 0x0113 +#define MWL8K_CMD_ENCRYPTION 0x1122 + +static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) +{ +#define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\ + snprintf(buf, bufsize, "%s", #x);\ + return buf;\ + } while (0) + switch (cmd & (~0x8000)) { + MWL8K_CMDNAME(CODE_DNLD); + MWL8K_CMDNAME(GET_HW_SPEC); + MWL8K_CMDNAME(MAC_MULTICAST_ADR); + MWL8K_CMDNAME(GET_STAT); + MWL8K_CMDNAME(RADIO_CONTROL); + MWL8K_CMDNAME(RF_TX_POWER); + MWL8K_CMDNAME(SET_PRE_SCAN); + MWL8K_CMDNAME(SET_POST_SCAN); + MWL8K_CMDNAME(SET_RF_CHANNEL); + MWL8K_CMDNAME(SET_SLOT); + MWL8K_CMDNAME(MIMO_CONFIG); + MWL8K_CMDNAME(ENABLE_SNIFFER); + MWL8K_CMDNAME(SET_WMM_MODE); + MWL8K_CMDNAME(SET_EDCA_PARAMS); + MWL8K_CMDNAME(SET_FINALIZE_JOIN); + MWL8K_CMDNAME(UPDATE_STADB); + MWL8K_CMDNAME(SET_RATEADAPT_MODE); + MWL8K_CMDNAME(SET_LINKADAPT_MODE); + MWL8K_CMDNAME(SET_AID); + MWL8K_CMDNAME(SET_RATE); + MWL8K_CMDNAME(USE_FIXED_RATE); + MWL8K_CMDNAME(RTS_THRESHOLD); + MWL8K_CMDNAME(ENCRYPTION); + default: + snprintf(buf, bufsize, "0x%x", cmd); + } +#undef MWL8K_CMDNAME + + return buf; +} + +/* Hardware and firmware reset */ +static void mwl8k_hw_reset(struct mwl8k_priv *priv) +{ + iowrite32(MWL8K_H2A_INT_RESET, + priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + iowrite32(MWL8K_H2A_INT_RESET, + priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + msleep(20); +} + +/* Release fw image */ +static void mwl8k_release_fw(struct firmware **fw) +{ + if (*fw == NULL) + return; + release_firmware(*fw); + *fw = NULL; +} + +static void mwl8k_release_firmware(struct mwl8k_priv *priv) +{ + mwl8k_release_fw(&priv->fw.ucode); + mwl8k_release_fw(&priv->fw.helper); +} + +/* Request fw image */ +static int mwl8k_request_fw(struct mwl8k_priv *priv, + const char *fname, struct firmware **fw) +{ + /* release current image */ + if (*fw != NULL) + mwl8k_release_fw(fw); + + return request_firmware((const struct firmware **)fw, + fname, &priv->pdev->dev); +} + +static int mwl8k_request_firmware(struct mwl8k_priv *priv, u32 part_num) +{ + u8 filename[64]; + int rc; + + priv->part_num = part_num; + + snprintf(filename, sizeof(filename), + "mwl8k/helper_%u.fw", priv->part_num); + + rc = mwl8k_request_fw(priv, filename, &priv->fw.helper); + if (rc) { + printk(KERN_ERR + "%s Error requesting helper firmware file %s\n", + pci_name(priv->pdev), filename); + return rc; + } + + snprintf(filename, sizeof(filename), + "mwl8k/fmimage_%u.fw", priv->part_num); + + rc = mwl8k_request_fw(priv, filename, &priv->fw.ucode); + if (rc) { + printk(KERN_ERR "%s Error requesting firmware file %s\n", + pci_name(priv->pdev), filename); + mwl8k_release_fw(&priv->fw.helper); + return rc; + } + + return 0; +} + +struct mwl8k_cmd_pkt { + __le16 code; + __le16 length; + __le16 seq_num; + __le16 result; + char payload[0]; +} __attribute__((packed)); + +/* + * Firmware loading. + */ +static int +mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length) +{ + void __iomem *regs = priv->regs; + dma_addr_t dma_addr; + int rc; + int loops; + + dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(priv->pdev, dma_addr)) + return -ENOMEM; + + iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); + iowrite32(0, regs + MWL8K_HIU_INT_CODE); + iowrite32(MWL8K_H2A_INT_DOORBELL, + regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + iowrite32(MWL8K_H2A_INT_DUMMY, + regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + + rc = -ETIMEDOUT; + loops = 1000; + do { + u32 int_code; + + int_code = ioread32(regs + MWL8K_HIU_INT_CODE); + if (int_code == MWL8K_INT_CODE_CMD_FINISHED) { + iowrite32(0, regs + MWL8K_HIU_INT_CODE); + rc = 0; + break; + } + + udelay(1); + } while (--loops); + + pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE); + + /* + * Clear 'command done' interrupt bit. + */ + loops = 1000; + do { + u32 status; + + status = ioread32(priv->regs + + MWL8K_HIU_A2H_INTERRUPT_STATUS); + if (status & MWL8K_A2H_INT_OPC_DONE) { + iowrite32(~MWL8K_A2H_INT_OPC_DONE, + priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); + ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); + break; + } + + udelay(1); + } while (--loops); + + return rc; +} + +static int mwl8k_load_fw_image(struct mwl8k_priv *priv, + const u8 *data, size_t length) +{ + struct mwl8k_cmd_pkt *cmd; + int done; + int rc = 0; + + cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD); + cmd->seq_num = 0; + cmd->result = 0; + + done = 0; + while (length) { + int block_size = length > 256 ? 256 : length; + + memcpy(cmd->payload, data + done, block_size); + cmd->length = cpu_to_le16(block_size); + + rc = mwl8k_send_fw_load_cmd(priv, cmd, + sizeof(*cmd) + block_size); + if (rc) + break; + + done += block_size; + length -= block_size; + } + + if (!rc) { + cmd->length = 0; + rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd)); + } + + kfree(cmd); + + return rc; +} + +static int mwl8k_feed_fw_image(struct mwl8k_priv *priv, + const u8 *data, size_t length) +{ + unsigned char *buffer; + int may_continue, rc = 0; + u32 done, prev_block_size; + + buffer = kmalloc(1024, GFP_KERNEL); + if (buffer == NULL) + return -ENOMEM; + + done = 0; + prev_block_size = 0; + may_continue = 1000; + while (may_continue > 0) { + u32 block_size; + + block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH); + if (block_size & 1) { + block_size &= ~1; + may_continue--; + } else { + done += prev_block_size; + length -= prev_block_size; + } + + if (block_size > 1024 || block_size > length) { + rc = -EOVERFLOW; + break; + } + + if (length == 0) { + rc = 0; + break; + } + + if (block_size == 0) { + rc = -EPROTO; + may_continue--; + udelay(1); + continue; + } + + prev_block_size = block_size; + memcpy(buffer, data + done, block_size); + + rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size); + if (rc) + break; + } + + if (!rc && length != 0) + rc = -EREMOTEIO; + + kfree(buffer); + + return rc; +} + +static int mwl8k_load_firmware(struct mwl8k_priv *priv) +{ + int loops, rc; + + const u8 *ucode = priv->fw.ucode->data; + size_t ucode_len = priv->fw.ucode->size; + const u8 *helper = priv->fw.helper->data; + size_t helper_len = priv->fw.helper->size; + + if (!memcmp(ucode, "\x01\x00\x00\x00", 4)) { + rc = mwl8k_load_fw_image(priv, helper, helper_len); + if (rc) { + printk(KERN_ERR "%s: unable to load firmware " + "helper image\n", pci_name(priv->pdev)); + return rc; + } + msleep(1); + + rc = mwl8k_feed_fw_image(priv, ucode, ucode_len); + } else { + rc = mwl8k_load_fw_image(priv, ucode, ucode_len); + } + + if (rc) { + printk(KERN_ERR "%s: unable to load firmware data\n", + pci_name(priv->pdev)); + return rc; + } + + iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR); + msleep(1); + + loops = 200000; + do { + if (ioread32(priv->regs + MWL8K_HIU_INT_CODE) + == MWL8K_FWSTA_READY) + break; + udelay(1); + } while (--loops); + + return loops ? 0 : -ETIMEDOUT; +} + + +/* + * Defines shared between transmission and reception. + */ +/* HT control fields for firmware */ +struct ewc_ht_info { + __le16 control1; + __le16 control2; + __le16 control3; +} __attribute__((packed)); + +/* Firmware Station database operations */ +#define MWL8K_STA_DB_ADD_ENTRY 0 +#define MWL8K_STA_DB_MODIFY_ENTRY 1 +#define MWL8K_STA_DB_DEL_ENTRY 2 +#define MWL8K_STA_DB_FLUSH 3 + +/* Peer Entry flags - used to define the type of the peer node */ +#define MWL8K_PEER_TYPE_ACCESSPOINT 2 +#define MWL8K_PEER_TYPE_ADHOC_STATION 4 + +#define MWL8K_IEEE_LEGACY_DATA_RATES 12 +#define MWL8K_MCS_BITMAP_SIZE 16 +#define pad_size 16 + +struct peer_capability_info { + /* Peer type - AP vs. STA. */ + __u8 peer_type; + + /* Basic 802.11 capabilities from assoc resp. */ + __le16 basic_caps; + + /* Set if peer supports 802.11n high throughput (HT). */ + __u8 ht_support; + + /* Valid if HT is supported. */ + __le16 ht_caps; + __u8 extended_ht_caps; + struct ewc_ht_info ewc_info; + + /* Legacy rate table. Intersection of our rates and peer rates. */ + __u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES]; + + /* HT rate table. Intersection of our rates and peer rates. */ + __u8 ht_rates[MWL8K_MCS_BITMAP_SIZE]; + __u8 pad[pad_size]; + + /* If set, interoperability mode, no proprietary extensions. */ + __u8 interop; + __u8 pad2; + __u8 station_id; + __le16 amsdu_enabled; +} __attribute__((packed)); + +/* Inline functions to manipulate QoS field in data descriptor. */ +static inline u16 mwl8k_qos_setbit_tid(u16 qos, u8 tid) +{ + u16 val_mask = 0x000f; + u16 qos_mask = ~val_mask; + + /* TID bits 0-3 */ + return (qos & qos_mask) | (tid & val_mask); +} + +static inline u16 mwl8k_qos_setbit_eosp(u16 qos) +{ + u16 val_mask = 1 << 4; + + /* End of Service Period Bit 4 */ + return qos | val_mask; +} + +static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy) +{ + u16 val_mask = 0x3; + u8 shift = 5; + u16 qos_mask = ~(val_mask << shift); + + /* Ack Policy Bit 5-6 */ + return (qos & qos_mask) | ((ack_policy & val_mask) << shift); +} + +static inline u16 mwl8k_qos_setbit_amsdu(u16 qos) +{ + u16 val_mask = 1 << 7; + + /* AMSDU present Bit 7 */ + return qos | val_mask; +} + +static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len) +{ + u16 val_mask = 0xff; + u8 shift = 8; + u16 qos_mask = ~(val_mask << shift); + + /* Queue Length Bits 8-15 */ + return (qos & qos_mask) | ((len & val_mask) << shift); +} + +/* DMA header used by firmware and hardware. */ +struct mwl8k_dma_data { + __le16 fwlen; + struct ieee80211_hdr wh; +} __attribute__((packed)); + +/* Routines to add/remove DMA header from skb. */ +static inline int mwl8k_remove_dma_header(struct sk_buff *skb) +{ + struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)(skb->data); + void *dst, *src = &tr->wh; + __le16 fc = tr->wh.frame_control; + int hdrlen = ieee80211_hdrlen(fc); + u16 space = sizeof(struct mwl8k_dma_data) - hdrlen; + + dst = (void *)tr + space; + if (dst != src) { + memmove(dst, src, hdrlen); + skb_pull(skb, space); + } + + return 0; +} + +static inline struct sk_buff *mwl8k_add_dma_header(struct sk_buff *skb) +{ + struct ieee80211_hdr *wh; + u32 hdrlen, pktlen; + struct mwl8k_dma_data *tr; + + wh = (struct ieee80211_hdr *)skb->data; + hdrlen = ieee80211_hdrlen(wh->frame_control); + pktlen = skb->len; + + /* + * Copy up/down the 802.11 header; the firmware requires + * we present a 2-byte payload length followed by a + * 4-address header (w/o QoS), followed (optionally) by + * any WEP/ExtIV header (but only filled in for CCMP). + */ + if (hdrlen != sizeof(struct mwl8k_dma_data)) + skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen); + + tr = (struct mwl8k_dma_data *)skb->data; + if (wh != &tr->wh) + memmove(&tr->wh, wh, hdrlen); + + /* Clear addr4 */ + memset(tr->wh.addr4, 0, IEEE80211_ADDR_LEN); + + /* + * Firmware length is the length of the fully formed "802.11 + * payload". That is, everything except for the 802.11 header. + * This includes all crypto material including the MIC. + */ + tr->fwlen = cpu_to_le16(pktlen - hdrlen); + + return skb; +} + + +/* + * Packet reception. + */ +#define MWL8K_RX_CTRL_KEY_INDEX_MASK 0x30 +#define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02 +#define MWL8K_RX_CTRL_AMPDU 0x01 + +struct mwl8k_rx_desc { + __le16 pkt_len; + __u8 link_quality; + __u8 noise_level; + __le32 pkt_phys_addr; + __le32 next_rx_desc_phys_addr; + __le16 qos_control; + __le16 rate_info; + __le32 pad0[4]; + __u8 rssi; + __u8 channel; + __le16 pad1; + __u8 rx_ctrl; + __u8 rx_status; + __u8 pad2[2]; +} __attribute__((packed)); + +#define MWL8K_RX_DESCS 256 +#define MWL8K_RX_MAXSZ 3800 + +static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_rx_queue *rxq = priv->rxq + index; + int size; + int i; + + rxq->rx_desc_count = 0; + rxq->rx_head = 0; + rxq->rx_tail = 0; + + size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc); + + rxq->rx_desc_area = + pci_alloc_consistent(priv->pdev, size, &rxq->rx_desc_dma); + if (rxq->rx_desc_area == NULL) { + printk(KERN_ERR "%s: failed to alloc RX descriptors\n", + priv->name); + return -ENOMEM; + } + memset(rxq->rx_desc_area, 0, size); + + rxq->rx_skb = kmalloc(MWL8K_RX_DESCS * + sizeof(*rxq->rx_skb), GFP_KERNEL); + if (rxq->rx_skb == NULL) { + printk(KERN_ERR "%s: failed to alloc RX skbuff list\n", + priv->name); + pci_free_consistent(priv->pdev, size, + rxq->rx_desc_area, rxq->rx_desc_dma); + return -ENOMEM; + } + memset(rxq->rx_skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->rx_skb)); + + for (i = 0; i < MWL8K_RX_DESCS; i++) { + struct mwl8k_rx_desc *rx_desc; + int nexti; + + rx_desc = rxq->rx_desc_area + i; + nexti = (i + 1) % MWL8K_RX_DESCS; + + rx_desc->next_rx_desc_phys_addr = + cpu_to_le32(rxq->rx_desc_dma + + nexti * sizeof(*rx_desc)); + rx_desc->rx_ctrl = + cpu_to_le32(MWL8K_RX_CTRL_OWNED_BY_HOST); + } + + return 0; +} + +static int rxq_refill(struct ieee80211_hw *hw, int index, int limit) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_rx_queue *rxq = priv->rxq + index; + int refilled; + + refilled = 0; + while (rxq->rx_desc_count < MWL8K_RX_DESCS && limit--) { + struct sk_buff *skb; + int rx; + + skb = dev_alloc_skb(MWL8K_RX_MAXSZ); + if (skb == NULL) + break; + + rxq->rx_desc_count++; + + rx = rxq->rx_tail; + rxq->rx_tail = (rx + 1) % MWL8K_RX_DESCS; + + rxq->rx_desc_area[rx].pkt_phys_addr = + cpu_to_le32(pci_map_single(priv->pdev, skb->data, + MWL8K_RX_MAXSZ, DMA_FROM_DEVICE)); + + rxq->rx_desc_area[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ); + rxq->rx_skb[rx] = skb; + wmb(); + rxq->rx_desc_area[rx].rx_ctrl = 0; + + refilled++; + } + + return refilled; +} + +/* Must be called only when the card's reception is completely halted */ +static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_rx_queue *rxq = priv->rxq + index; + int i; + + for (i = 0; i < MWL8K_RX_DESCS; i++) { + if (rxq->rx_skb[i] != NULL) { + unsigned long addr; + + addr = le32_to_cpu(rxq->rx_desc_area[i].pkt_phys_addr); + pci_unmap_single(priv->pdev, addr, MWL8K_RX_MAXSZ, + PCI_DMA_FROMDEVICE); + kfree_skb(rxq->rx_skb[i]); + rxq->rx_skb[i] = NULL; + } + } + + kfree(rxq->rx_skb); + rxq->rx_skb = NULL; + + pci_free_consistent(priv->pdev, + MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc), + rxq->rx_desc_area, rxq->rx_desc_dma); + rxq->rx_desc_area = NULL; +} + + +/* + * Scan a list of BSSIDs to process for finalize join. + * Allows for extension to process multiple BSSIDs. + */ +static inline int +mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh) +{ + return priv->capture_beacon && + ieee80211_is_beacon(wh->frame_control) && + !compare_ether_addr(wh->addr3, priv->capture_bssid); +} + +static inline void mwl8k_save_beacon(struct mwl8k_priv *priv, + struct sk_buff *skb) +{ + priv->capture_beacon = false; + memset(priv->capture_bssid, 0, IEEE80211_ADDR_LEN); + + /* + * Use GFP_ATOMIC as rxq_process is called from + * the primary interrupt handler, memory allocation call + * must not sleep. + */ + priv->beacon_skb = skb_copy(skb, GFP_ATOMIC); + if (priv->beacon_skb != NULL) + queue_work(priv->config_wq, + &priv->finalize_join_worker); +} + +static int rxq_process(struct ieee80211_hw *hw, int index, int limit) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_rx_queue *rxq = priv->rxq + index; + int processed; + + processed = 0; + while (rxq->rx_desc_count && limit--) { + struct mwl8k_rx_desc *rx_desc; + struct sk_buff *skb; + struct ieee80211_rx_status status; + unsigned long addr; + struct ieee80211_hdr *wh; + + rx_desc = rxq->rx_desc_area + rxq->rx_head; + if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST)) + break; + rmb(); + + skb = rxq->rx_skb[rxq->rx_head]; + rxq->rx_skb[rxq->rx_head] = NULL; + + rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS; + rxq->rx_desc_count--; + + addr = le32_to_cpu(rx_desc->pkt_phys_addr); + pci_unmap_single(priv->pdev, addr, + MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE); + + skb_put(skb, le16_to_cpu(rx_desc->pkt_len)); + if (mwl8k_remove_dma_header(skb)) { + dev_kfree_skb(skb); + continue; + } + + wh = (struct ieee80211_hdr *)skb->data; + + /* + * Check for pending join operation. save a copy of + * the beacon and schedule a tasklet to send finalize + * join command to the firmware. + */ + if (mwl8k_capture_bssid(priv, wh)) + mwl8k_save_beacon(priv, skb); + + memset(&status, 0, sizeof(status)); + status.mactime = 0; + status.signal = -rx_desc->rssi; + status.noise = -rx_desc->noise_level; + status.qual = rx_desc->link_quality; + status.antenna = 1; + status.rate_idx = 1; + status.flag = 0; + status.band = IEEE80211_BAND_2GHZ; + status.freq = ieee80211_channel_to_frequency(rx_desc->channel); + ieee80211_rx_irqsafe(hw, skb, &status); + + processed++; + } + + return processed; +} + + +/* + * Packet transmission. + */ + +/* Transmit queue assignment. */ +enum { + MWL8K_WME_AC_BK = 0, /* background access */ + MWL8K_WME_AC_BE = 1, /* best effort access */ + MWL8K_WME_AC_VI = 2, /* video access */ + MWL8K_WME_AC_VO = 3, /* voice access */ +}; + +/* Transmit packet ACK policy */ +#define MWL8K_TXD_ACK_POLICY_NORMAL 0 +#define MWL8K_TXD_ACK_POLICY_NONE 1 +#define MWL8K_TXD_ACK_POLICY_NO_EXPLICIT 2 +#define MWL8K_TXD_ACK_POLICY_BLOCKACK 3 + +#define GET_TXQ(_ac) (\ + ((_ac) == WME_AC_VO) ? MWL8K_WME_AC_VO : \ + ((_ac) == WME_AC_VI) ? MWL8K_WME_AC_VI : \ + ((_ac) == WME_AC_BK) ? MWL8K_WME_AC_BK : \ + MWL8K_WME_AC_BE) + +#define MWL8K_TXD_STATUS_IDLE 0x00000000 +#define MWL8K_TXD_STATUS_USED 0x00000001 +#define MWL8K_TXD_STATUS_OK 0x00000001 +#define MWL8K_TXD_STATUS_OK_RETRY 0x00000002 +#define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004 +#define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008 +#define MWL8K_TXD_STATUS_BROADCAST_TX 0x00000010 +#define MWL8K_TXD_STATUS_FAILED_LINK_ERROR 0x00000020 +#define MWL8K_TXD_STATUS_FAILED_EXCEED_LIMIT 0x00000040 +#define MWL8K_TXD_STATUS_FAILED_AGING 0x00000080 +#define MWL8K_TXD_STATUS_HOST_CMD 0x40000000 +#define MWL8K_TXD_STATUS_FW_OWNED 0x80000000 +#define MWL8K_TXD_SOFTSTALE 0x80 +#define MWL8K_TXD_SOFTSTALE_MGMT_RETRY 0x01 + +struct mwl8k_tx_desc { + __le32 status; + __u8 data_rate; + __u8 tx_priority; + __le16 qos_control; + __le32 pkt_phys_addr; + __le16 pkt_len; + __u8 dest_MAC_addr[IEEE80211_ADDR_LEN]; + __le32 next_tx_desc_phys_addr; + __le32 reserved; + __le16 rate_info; + __u8 peer_id; + __u8 tx_frag_cnt; +} __attribute__((packed)); + +#define MWL8K_TX_DESCS 128 + +static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_tx_queue *txq = priv->txq + index; + int size; + int i; + + memset(&txq->tx_stats, 0, + sizeof(struct ieee80211_tx_queue_stats)); + txq->tx_stats.limit = MWL8K_TX_DESCS; + txq->tx_head = 0; + txq->tx_tail = 0; + + size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc); + + txq->tx_desc_area = + pci_alloc_consistent(priv->pdev, size, &txq->tx_desc_dma); + if (txq->tx_desc_area == NULL) { + printk(KERN_ERR "%s: failed to alloc TX descriptors\n", + priv->name); + return -ENOMEM; + } + memset(txq->tx_desc_area, 0, size); + + txq->tx_skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->tx_skb), + GFP_KERNEL); + if (txq->tx_skb == NULL) { + printk(KERN_ERR "%s: failed to alloc TX skbuff list\n", + priv->name); + pci_free_consistent(priv->pdev, size, + txq->tx_desc_area, txq->tx_desc_dma); + return -ENOMEM; + } + memset(txq->tx_skb, 0, MWL8K_TX_DESCS * sizeof(*txq->tx_skb)); + + for (i = 0; i < MWL8K_TX_DESCS; i++) { + struct mwl8k_tx_desc *tx_desc; + int nexti; + + tx_desc = txq->tx_desc_area + i; + nexti = (i + 1) % MWL8K_TX_DESCS; + + tx_desc->status = 0; + tx_desc->next_tx_desc_phys_addr = + cpu_to_le32(txq->tx_desc_dma + + nexti * sizeof(*tx_desc)); + } + + return 0; +} + +static inline void mwl8k_tx_start(struct mwl8k_priv *priv) +{ + iowrite32(MWL8K_H2A_INT_PPA_READY, + priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + iowrite32(MWL8K_H2A_INT_DUMMY, + priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + ioread32(priv->regs + MWL8K_HIU_INT_CODE); +} + +static inline int mwl8k_txq_busy(struct mwl8k_priv *priv) +{ + return priv->pending_tx_pkts; +} + +struct mwl8k_txq_info { + u32 fw_owned; + u32 drv_owned; + u32 unused; + u32 len; + u32 head; + u32 tail; +}; + +static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, + struct mwl8k_txq_info txinfo[], + u32 num_queues) +{ + int count, desc, status; + struct mwl8k_tx_queue *txq; + struct mwl8k_tx_desc *tx_desc; + int ndescs = 0; + + memset(txinfo, 0, num_queues * sizeof(struct mwl8k_txq_info)); + spin_lock_bh(&priv->tx_lock); + for (count = 0; count < num_queues; count++) { + txq = priv->txq + count; + txinfo[count].len = txq->tx_stats.len; + txinfo[count].head = txq->tx_head; + txinfo[count].tail = txq->tx_tail; + for (desc = 0; desc < MWL8K_TX_DESCS; desc++) { + tx_desc = txq->tx_desc_area + desc; + status = le32_to_cpu(tx_desc->status); + + if (status & MWL8K_TXD_STATUS_FW_OWNED) + txinfo[count].fw_owned++; + else + txinfo[count].drv_owned++; + + if (tx_desc->pkt_len == 0) + txinfo[count].unused++; + } + } + spin_unlock_bh(&priv->tx_lock); + + return ndescs; +} + +static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms) +{ + u32 count = 0; + unsigned long timeout = 0; + struct mwl8k_priv *priv = hw->priv; + DECLARE_COMPLETION_ONSTACK(cmd_wait); + + might_sleep(); + + if (priv->tx_wait != NULL) + printk(KERN_ERR "WARNING Previous TXWaitEmpty instance\n"); + + spin_lock_bh(&priv->tx_lock); + count = mwl8k_txq_busy(priv); + if (count) { + priv->tx_wait = &cmd_wait; + if (priv->radio_state) + mwl8k_tx_start(priv); + } + spin_unlock_bh(&priv->tx_lock); + + if (count) { + struct mwl8k_txq_info txinfo[4]; + int index; + int newcount; + + timeout = wait_for_completion_timeout(&cmd_wait, + msecs_to_jiffies(delay_ms)); + if (timeout) + return 0; + + spin_lock_bh(&priv->tx_lock); + priv->tx_wait = NULL; + newcount = mwl8k_txq_busy(priv); + spin_unlock_bh(&priv->tx_lock); + + printk(KERN_ERR "%s(%u) TIMEDOUT:%ums Pend:%u-->%u\n", + __func__, __LINE__, delay_ms, count, newcount); + + mwl8k_scan_tx_ring(priv, txinfo, 4); + for (index = 0 ; index < 4; index++) + printk(KERN_ERR + "TXQ:%u L:%u H:%u T:%u FW:%u DRV:%u U:%u\n", + index, + txinfo[index].len, + txinfo[index].head, + txinfo[index].tail, + txinfo[index].fw_owned, + txinfo[index].drv_owned, + txinfo[index].unused); + return -ETIMEDOUT; + } + + return 0; +} + +#define MWL8K_TXD_OK (MWL8K_TXD_STATUS_OK | \ + MWL8K_TXD_STATUS_OK_RETRY | \ + MWL8K_TXD_STATUS_OK_MORE_RETRY) +#define MWL8K_TXD_SUCCESS(stat) ((stat) & MWL8K_TXD_OK) +#define MWL8K_TXD_FAIL_RETRY(stat) \ + ((stat) & (MWL8K_TXD_STATUS_FAILED_EXCEED_LIMIT)) + +static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_tx_queue *txq = priv->txq + index; + int wake = 0; + + while (txq->tx_stats.len > 0) { + int tx; + int rc; + struct mwl8k_tx_desc *tx_desc; + unsigned long addr; + size_t size; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + u32 status; + + rc = 0; + tx = txq->tx_head; + tx_desc = txq->tx_desc_area + tx; + + status = le32_to_cpu(tx_desc->status); + + if (status & MWL8K_TXD_STATUS_FW_OWNED) { + if (!force) + break; + tx_desc->status &= + ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED); + } + + txq->tx_head = (tx + 1) % MWL8K_TX_DESCS; + BUG_ON(txq->tx_stats.len == 0); + txq->tx_stats.len--; + priv->pending_tx_pkts--; + + addr = le32_to_cpu(tx_desc->pkt_phys_addr); + size = (u32)(le16_to_cpu(tx_desc->pkt_len)); + skb = txq->tx_skb[tx].skb; + txq->tx_skb[tx].skb = NULL; + + BUG_ON(skb == NULL); + pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE); + + rc = mwl8k_remove_dma_header(skb); + + /* Mark descriptor as unused */ + tx_desc->pkt_phys_addr = 0; + tx_desc->pkt_len = 0; + + if (txq->tx_skb[tx].clone) { + /* Replace with original skb + * before returning to stack + * as buffer has been cloned + */ + dev_kfree_skb(skb); + skb = txq->tx_skb[tx].clone; + txq->tx_skb[tx].clone = NULL; + } + + if (rc) { + /* Something has gone wrong here. + * Failed to remove DMA header. + * Print error message and drop packet. + */ + printk(KERN_ERR "%s: Error removing DMA header from " + "tx skb 0x%p.\n", priv->name, skb); + + dev_kfree_skb(skb); + continue; + } + + info = IEEE80211_SKB_CB(skb); + ieee80211_tx_info_clear_status(info); + + /* Convert firmware status stuff into tx_status */ + if (MWL8K_TXD_SUCCESS(status)) { + /* Transmit OK */ + info->flags |= IEEE80211_TX_STAT_ACK; + } + + ieee80211_tx_status_irqsafe(hw, skb); + + wake = !priv->inconfig && priv->radio_state; + } + + if (wake) + ieee80211_wake_queue(hw, index); +} + +/* must be called only when the card's transmit is completely halted */ +static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_tx_queue *txq = priv->txq + index; + + mwl8k_txq_reclaim(hw, index, 1); + + kfree(txq->tx_skb); + txq->tx_skb = NULL; + + pci_free_consistent(priv->pdev, + MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc), + txq->tx_desc_area, txq->tx_desc_dma); + txq->tx_desc_area = NULL; +} + +static int +mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb) +{ + struct mwl8k_priv *priv = hw->priv; + struct ieee80211_tx_info *tx_info; + struct ieee80211_hdr *wh; + struct mwl8k_tx_queue *txq; + struct mwl8k_tx_desc *tx; + struct mwl8k_dma_data *tr; + struct mwl8k_vif *mwl8k_vif; + struct sk_buff *org_skb = skb; + dma_addr_t dma; + u16 qos = 0; + bool qosframe = false, ampduframe = false; + bool mcframe = false, eapolframe = false; + bool amsduframe = false; + __le16 fc; + + txq = priv->txq + index; + tx = txq->tx_desc_area + txq->tx_tail; + + BUG_ON(txq->tx_skb[txq->tx_tail].skb != NULL); + + /* + * Append HW DMA header to start of packet. Drop packet if + * there is not enough space or a failure to unshare/unclone + * the skb. + */ + skb = mwl8k_add_dma_header(skb); + + if (skb == NULL) { + printk(KERN_DEBUG "%s: failed to prepend HW DMA " + "header, dropping TX frame.\n", priv->name); + dev_kfree_skb(org_skb); + return NETDEV_TX_OK; + } + + tx_info = IEEE80211_SKB_CB(skb); + mwl8k_vif = MWL8K_VIF(tx_info->control.vif); + tr = (struct mwl8k_dma_data *)skb->data; + wh = &tr->wh; + fc = wh->frame_control; + qosframe = ieee80211_is_data_qos(fc); + mcframe = is_multicast_ether_addr(wh->addr1); + ampduframe = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU); + + if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { + u16 seqno = mwl8k_vif->seqno; + wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); + wh->seq_ctrl |= cpu_to_le16(seqno << 4); + mwl8k_vif->seqno = seqno++ % 4096; + } + + if (qosframe) + qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh))); + + dma = pci_map_single(priv->pdev, skb->data, + skb->len, PCI_DMA_TODEVICE); + + if (pci_dma_mapping_error(priv->pdev, dma)) { + printk(KERN_DEBUG "%s: failed to dma map skb, " + "dropping TX frame.\n", priv->name); + + if (org_skb != NULL) + dev_kfree_skb(org_skb); + if (skb != NULL) + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + + /* Set desc header, cpu bit order. */ + tx->status = 0; + tx->data_rate = 0; + tx->tx_priority = index; + tx->qos_control = 0; + tx->rate_info = 0; + tx->peer_id = mwl8k_vif->peer_id; + + amsduframe = !!(qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT); + + /* Setup firmware control bit fields for each frame type. */ + if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) { + tx->data_rate = 0; + qos = mwl8k_qos_setbit_eosp(qos); + /* Set Queue size to unspecified */ + qos = mwl8k_qos_setbit_qlen(qos, 0xff); + } else if (ieee80211_is_data(fc)) { + tx->data_rate = 1; + if (mcframe) + tx->status |= MWL8K_TXD_STATUS_MULTICAST_TX; + + /* + * Tell firmware to not send EAPOL pkts in an + * aggregate. Verify against mac80211 tx path. If + * stack turns off AMPDU for an EAPOL frame this + * check will be removed. + */ + if (eapolframe) { + qos = mwl8k_qos_setbit_ack(qos, + MWL8K_TXD_ACK_POLICY_NORMAL); + } else { + /* Send pkt in an aggregate if AMPDU frame. */ + if (ampduframe) + qos = mwl8k_qos_setbit_ack(qos, + MWL8K_TXD_ACK_POLICY_BLOCKACK); + else + qos = mwl8k_qos_setbit_ack(qos, + MWL8K_TXD_ACK_POLICY_NORMAL); + + if (amsduframe) + qos = mwl8k_qos_setbit_amsdu(qos); + } + } + + /* Convert to little endian */ + tx->qos_control = cpu_to_le16(qos); + tx->status = cpu_to_le32(tx->status); + tx->pkt_phys_addr = cpu_to_le32(dma); + tx->pkt_len = cpu_to_le16(skb->len); + + txq->tx_skb[txq->tx_tail].skb = skb; + txq->tx_skb[txq->tx_tail].clone = + skb == org_skb ? NULL : org_skb; + + spin_lock_bh(&priv->tx_lock); + + tx->status = cpu_to_le32(MWL8K_TXD_STATUS_OK | + MWL8K_TXD_STATUS_FW_OWNED); + wmb(); + txq->tx_stats.len++; + priv->pending_tx_pkts++; + txq->tx_stats.count++; + txq->tx_tail++; + + if (txq->tx_tail == MWL8K_TX_DESCS) + txq->tx_tail = 0; + if (txq->tx_head == txq->tx_tail) + ieee80211_stop_queue(hw, index); + + if (priv->inconfig) { + /* + * Silently queue packet when we are in the middle of + * a config cycle. Notify firmware only if we are + * waiting for TXQs to empty. If a packet is sent + * before .config() is complete, perhaps it is better + * to drop the packet, as the channel is being changed + * and the packet will end up on the wrong channel. + */ + printk(KERN_ERR "%s(): WARNING TX activity while " + "in config\n", __func__); + + if (priv->tx_wait != NULL) + mwl8k_tx_start(priv); + } else + mwl8k_tx_start(priv); + + spin_unlock_bh(&priv->tx_lock); + + return NETDEV_TX_OK; +} + + +/* + * Command processing. + */ + +/* Timeout firmware commands after 2000ms */ +#define MWL8K_CMD_TIMEOUT_MS 2000 + +static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) +{ + DECLARE_COMPLETION_ONSTACK(cmd_wait); + struct mwl8k_priv *priv = hw->priv; + void __iomem *regs = priv->regs; + dma_addr_t dma_addr; + unsigned int dma_size; + int rc; + u16 __iomem *result; + unsigned long timeout = 0; + u8 buf[32]; + + cmd->result = 0xFFFF; + dma_size = le16_to_cpu(cmd->length); + dma_addr = pci_map_single(priv->pdev, cmd, dma_size, + PCI_DMA_BIDIRECTIONAL); + if (pci_dma_mapping_error(priv->pdev, dma_addr)) + return -ENOMEM; + + if (priv->hostcmd_wait != NULL) + printk(KERN_ERR "WARNING host command in progress\n"); + + spin_lock_irq(&priv->fw_lock); + priv->hostcmd_wait = &cmd_wait; + iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR); + iowrite32(MWL8K_H2A_INT_DOORBELL, + regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + iowrite32(MWL8K_H2A_INT_DUMMY, + regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS); + spin_unlock_irq(&priv->fw_lock); + + timeout = wait_for_completion_timeout(&cmd_wait, + msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS)); + + result = &cmd->result; + if (!timeout) { + spin_lock_irq(&priv->fw_lock); + priv->hostcmd_wait = NULL; + spin_unlock_irq(&priv->fw_lock); + printk(KERN_ERR "%s: Command %s timeout after %u ms\n", + priv->name, + mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), + MWL8K_CMD_TIMEOUT_MS); + rc = -ETIMEDOUT; + } else { + rc = *result ? -EINVAL : 0; + if (rc) + printk(KERN_ERR "%s: Command %s error 0x%x\n", + priv->name, + mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), + *result); + } + + pci_unmap_single(priv->pdev, dma_addr, dma_size, + PCI_DMA_BIDIRECTIONAL); + return rc; +} + +/* + * GET_HW_SPEC. + */ +struct mwl8k_cmd_get_hw_spec { + struct mwl8k_cmd_pkt header; + __u8 hw_rev; + __u8 host_interface; + __le16 num_mcaddrs; + __u8 perm_addr[IEEE80211_ADDR_LEN]; + __le16 region_code; + __le32 fw_rev; + __le32 ps_cookie; + __le32 caps; + __u8 mcs_bitmap[16]; + __le32 rx_queue_ptr; + __le32 num_tx_queues; + __le32 tx_queue_ptrs[MWL8K_TX_QUEUES]; + __le32 caps2; + __le32 num_tx_desc_per_queue; + __le32 total_rx_desc; +} __attribute__((packed)); + +static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_cmd_get_hw_spec *cmd; + int rc; + int i; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr)); + cmd->ps_cookie = cpu_to_le32(priv->cookie_dma); + cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rx_desc_dma); + cmd->num_tx_queues = MWL8K_TX_QUEUES; + for (i = 0; i < MWL8K_TX_QUEUES; i++) + cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].tx_desc_dma); + cmd->num_tx_desc_per_queue = MWL8K_TX_DESCS; + cmd->total_rx_desc = MWL8K_RX_DESCS; + + rc = mwl8k_post_cmd(hw, &cmd->header); + + if (!rc) { + SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr); + priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs); + priv->fw_rev = cmd->fw_rev; + priv->hw_rev = cmd->hw_rev; + priv->region_code = le16_to_cpu(cmd->region_code); + } + + kfree(cmd); + return rc; +} + +/* + * CMD_MAC_MULTICAST_ADR. + */ +struct mwl8k_cmd_mac_multicast_adr { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 numaddr; + __u8 addr[1][IEEE80211_ADDR_LEN]; +}; + +#define MWL8K_ENABLE_RX_MULTICAST 0x000F +static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, + int mc_count, + struct dev_addr_list *mclist) +{ + struct mwl8k_cmd_mac_multicast_adr *cmd; + int index = 0; + int rc; + int size = sizeof(*cmd) + ((mc_count - 1) * IEEE80211_ADDR_LEN); + cmd = kzalloc(size, GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR); + cmd->header.length = cpu_to_le16(size); + cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); + cmd->numaddr = cpu_to_le16(mc_count); + while ((index < mc_count) && mclist) { + if (mclist->da_addrlen != IEEE80211_ADDR_LEN) { + rc = -EINVAL; + goto mwl8k_cmd_mac_multicast_adr_exit; + } + memcpy(cmd->addr[index], mclist->da_addr, IEEE80211_ADDR_LEN); + index++; + mclist = mclist->next; + } + + rc = mwl8k_post_cmd(hw, &cmd->header); + +mwl8k_cmd_mac_multicast_adr_exit: + kfree(cmd); + return rc; +} + +/* + * CMD_802_11_GET_STAT. + */ +struct mwl8k_cmd_802_11_get_stat { + struct mwl8k_cmd_pkt header; + __le16 action; + __le32 stats[64]; +} __attribute__((packed)); + +#define MWL8K_STAT_ACK_FAILURE 9 +#define MWL8K_STAT_RTS_FAILURE 12 +#define MWL8K_STAT_FCS_ERROR 24 +#define MWL8K_STAT_RTS_SUCCESS 11 + +static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + struct mwl8k_cmd_802_11_get_stat *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_GET); + + rc = mwl8k_post_cmd(hw, &cmd->header); + if (!rc) { + stats->dot11ACKFailureCount = + le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]); + stats->dot11RTSFailureCount = + le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]); + stats->dot11FCSErrorCount = + le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]); + stats->dot11RTSSuccessCount = + le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]); + } + kfree(cmd); + + return rc; +} + +/* + * CMD_802_11_RADIO_CONTROL. + */ +struct mwl8k_cmd_802_11_radio_control { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 control; + __le16 radio_on; +} __attribute__((packed)); + +static int mwl8k_cmd_802_11_radio_control(struct ieee80211_hw *hw, int enable) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_cmd_802_11_radio_control *cmd; + int rc; + + if (((enable & MWL8K_RADIO_ENABLE) == priv->radio_state) && + !(enable & MWL8K_RADIO_FORCE)) + return 0; + + enable &= MWL8K_RADIO_ENABLE; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET); + cmd->control = cpu_to_le16(priv->radio_preamble); + cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + if (!rc) + priv->radio_state = enable; + + return rc; +} + +static int +mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble) +{ + struct mwl8k_priv *priv; + + if (hw == NULL || hw->priv == NULL) + return -EINVAL; + priv = hw->priv; + + priv->radio_preamble = (short_preamble ? + MWL8K_RADIO_SHORT_PREAMBLE : + MWL8K_RADIO_LONG_PREAMBLE); + + return mwl8k_cmd_802_11_radio_control(hw, + MWL8K_RADIO_ENABLE | MWL8K_RADIO_FORCE); +} + +/* + * CMD_802_11_RF_TX_POWER. + */ +#define MWL8K_TX_POWER_LEVEL_TOTAL 8 + +struct mwl8k_cmd_802_11_rf_tx_power { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 support_level; + __le16 current_level; + __le16 reserved; + __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL]; +} __attribute__((packed)); + +static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw *hw, int dBm) +{ + struct mwl8k_cmd_802_11_rf_tx_power *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET); + cmd->support_level = cpu_to_le16(dBm); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_PRE_SCAN. + */ +struct mwl8k_cmd_set_pre_scan { + struct mwl8k_cmd_pkt header; +} __attribute__((packed)); + +static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw) +{ + struct mwl8k_cmd_set_pre_scan *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_POST_SCAN. + */ +struct mwl8k_cmd_set_post_scan { + struct mwl8k_cmd_pkt header; + __le32 isibss; + __u8 bssid[IEEE80211_ADDR_LEN]; +} __attribute__((packed)); + +static int +mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 mac[IEEE80211_ADDR_LEN]) +{ + struct mwl8k_cmd_set_post_scan *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->isibss = 0; + memcpy(cmd->bssid, mac, IEEE80211_ADDR_LEN); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_RF_CHANNEL. + */ +struct mwl8k_cmd_set_rf_channel { + struct mwl8k_cmd_pkt header; + __le16 action; + __u8 current_channel; + __le32 channel_flags; +} __attribute__((packed)); + +static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw, + struct ieee80211_channel *channel) +{ + struct mwl8k_cmd_set_rf_channel *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET); + cmd->current_channel = channel->hw_value; + if (channel->band == IEEE80211_BAND_2GHZ) + cmd->channel_flags = cpu_to_le32(0x00000081); + else + cmd->channel_flags = cpu_to_le32(0x00000000); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_SLOT. + */ +struct mwl8k_cmd_set_slot { + struct mwl8k_cmd_pkt header; + __le16 action; + __u8 short_slot; +} __attribute__((packed)); + +static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, int slot_time) +{ + struct mwl8k_cmd_set_slot *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET); + cmd->short_slot = slot_time == MWL8K_SHORT_SLOTTIME ? 1 : 0; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_MIMO_CONFIG. + */ +struct mwl8k_cmd_mimo_config { + struct mwl8k_cmd_pkt header; + __le32 action; + __u8 rx_antenna_map; + __u8 tx_antenna_map; +} __attribute__((packed)); + +static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx) +{ + struct mwl8k_cmd_mimo_config *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET); + cmd->rx_antenna_map = rx; + cmd->tx_antenna_map = tx; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_ENABLE_SNIFFER. + */ +struct mwl8k_cmd_enable_sniffer { + struct mwl8k_cmd_pkt header; + __le32 action; +} __attribute__((packed)); + +static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) +{ + struct mwl8k_cmd_enable_sniffer *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = enable ? cpu_to_le32((u32)MWL8K_CMD_SET) : 0; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_RATE_ADAPT_MODE. + */ +struct mwl8k_cmd_set_rate_adapt_mode { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 mode; +} __attribute__((packed)); + +static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode) +{ + struct mwl8k_cmd_set_rate_adapt_mode *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(MWL8K_CMD_SET); + cmd->mode = cpu_to_le16(mode); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_WMM_MODE. + */ +struct mwl8k_cmd_set_wmm { + struct mwl8k_cmd_pkt header; + __le16 action; +} __attribute__((packed)); + +static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_cmd_set_wmm *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = enable ? cpu_to_le16(MWL8K_CMD_SET) : 0; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + if (!rc) + priv->wmm_mode = enable; + + return rc; +} + +/* + * CMD_SET_RTS_THRESHOLD. + */ +struct mwl8k_cmd_rts_threshold { + struct mwl8k_cmd_pkt header; + __le16 action; + __le16 threshold; +} __attribute__((packed)); + +static int mwl8k_rts_threshold(struct ieee80211_hw *hw, + u16 action, u16 *threshold) +{ + struct mwl8k_cmd_rts_threshold *cmd; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->action = cpu_to_le16(action); + cmd->threshold = cpu_to_le16(*threshold); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_EDCA_PARAMS. + */ +struct mwl8k_cmd_set_edca_params { + struct mwl8k_cmd_pkt header; + + /* See MWL8K_SET_EDCA_XXX below */ + __le16 action; + + /* TX opportunity in units of 32 us */ + __le16 txop; + + /* Log exponent of max contention period: 0...15*/ + __u8 log_cw_max; + + /* Log exponent of min contention period: 0...15 */ + __u8 log_cw_min; + + /* Adaptive interframe spacing in units of 32us */ + __u8 aifs; + + /* TX queue to configure */ + __u8 txq; +} __attribute__((packed)); + +#define MWL8K_GET_EDCA_ALL 0 +#define MWL8K_SET_EDCA_CW 0x01 +#define MWL8K_SET_EDCA_TXOP 0x02 +#define MWL8K_SET_EDCA_AIFS 0x04 + +#define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \ + MWL8K_SET_EDCA_TXOP | \ + MWL8K_SET_EDCA_AIFS) + +static int +mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, + __u16 cw_min, __u16 cw_max, + __u8 aifs, __u16 txop) +{ + struct mwl8k_cmd_set_edca_params *cmd; + u32 log_cw_min, log_cw_max; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + log_cw_min = ilog2(cw_min+1); + log_cw_max = ilog2(cw_max+1); + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); + cmd->txop = cpu_to_le16(txop); + cmd->log_cw_max = (u8)log_cw_max; + cmd->log_cw_min = (u8)log_cw_min; + cmd->aifs = aifs; + cmd->txq = qnum; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_FINALIZE_JOIN. + */ + +/* FJ beacon buffer size is compiled into the firmware. */ +#define MWL8K_FJ_BEACON_MAXLEN 128 + +struct mwl8k_cmd_finalize_join { + struct mwl8k_cmd_pkt header; + __le32 sleep_interval; /* Number of beacon periods to sleep */ + __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN]; +} __attribute__((packed)); + +static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, + __u16 framelen, __u16 dtim) +{ + struct mwl8k_cmd_finalize_join *cmd; + struct ieee80211_mgmt *payload = frame; + u16 hdrlen; + u32 payload_len; + int rc; + + if (frame == NULL) + return -EINVAL; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + if (dtim) + cmd->sleep_interval = cpu_to_le32(dtim); + else + cmd->sleep_interval = cpu_to_le32(1); + + hdrlen = ieee80211_hdrlen(payload->frame_control); + + payload_len = framelen > hdrlen ? framelen - hdrlen : 0; + + /* XXX TBD Might just have to abort and return an error */ + if (payload_len > MWL8K_FJ_BEACON_MAXLEN) + printk(KERN_ERR "%s(): WARNING: Incomplete beacon " + "sent to firmware. Sz=%u MAX=%u\n", __func__, + payload_len, MWL8K_FJ_BEACON_MAXLEN); + + payload_len = payload_len > MWL8K_FJ_BEACON_MAXLEN ? + MWL8K_FJ_BEACON_MAXLEN : payload_len; + + if (payload && payload_len) + memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + return rc; +} + +/* + * CMD_UPDATE_STADB. + */ +struct mwl8k_cmd_update_sta_db { + struct mwl8k_cmd_pkt header; + + /* See STADB_ACTION_TYPE */ + __le32 action; + + /* Peer MAC address */ + __u8 peer_addr[IEEE80211_ADDR_LEN]; + + __le32 reserved; + + /* Peer info - valid during add/update. */ + struct peer_capability_info peer_info; +} __attribute__((packed)); + +static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, __u32 action) +{ + struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); + struct ieee80211_bss_conf *info = &mv_vif->bss_info; + struct mwl8k_cmd_update_sta_db *cmd; + struct peer_capability_info *peer_info; + struct ieee80211_rate *bitrates = mv_vif->legacy_rates; + DECLARE_MAC_BUF(mac); + int rc; + __u8 count, *rates; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + cmd->action = cpu_to_le32(action); + peer_info = &cmd->peer_info; + memcpy(cmd->peer_addr, mv_vif->bssid, IEEE80211_ADDR_LEN); + + switch (action) { + case MWL8K_STA_DB_ADD_ENTRY: + case MWL8K_STA_DB_MODIFY_ENTRY: + /* Build peer_info block */ + peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT; + peer_info->basic_caps = cpu_to_le16(info->assoc_capability); + peer_info->interop = 1; + peer_info->amsdu_enabled = 0; + + rates = peer_info->legacy_rates; + for (count = 0 ; count < mv_vif->legacy_nrates; count++) + rates[count] = bitrates[count].hw_value; + + rc = mwl8k_post_cmd(hw, &cmd->header); + if (rc == 0) + mv_vif->peer_id = peer_info->station_id; + + break; + + case MWL8K_STA_DB_DEL_ENTRY: + case MWL8K_STA_DB_FLUSH: + default: + rc = mwl8k_post_cmd(hw, &cmd->header); + if (rc == 0) + mv_vif->peer_id = 0; + break; + } + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_AID. + */ +#define IEEE80211_OPMODE_DISABLED 0x00 +#define IEEE80211_OPMODE_NON_MEMBER_PROT_MODE 0x01 +#define IEEE80211_OPMODE_ONE_20MHZ_STA_PROT_MODE 0x02 +#define IEEE80211_OPMODE_HTMIXED_PROT_MODE 0x03 + +#define MWL8K_RATE_INDEX_MAX_ARRAY 14 + +#define MWL8K_FRAME_PROT_DISABLED 0x00 +#define MWL8K_FRAME_PROT_11G 0x07 +#define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02 +#define MWL8K_FRAME_PROT_11N_HT_ALL 0x06 +#define MWL8K_FRAME_PROT_MASK 0x07 + +struct mwl8k_cmd_update_set_aid { + struct mwl8k_cmd_pkt header; + __le16 aid; + + /* AP's MAC address (BSSID) */ + __u8 bssid[IEEE80211_ADDR_LEN]; + __le16 protection_mode; + __u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; +} __attribute__((packed)); + +static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); + struct ieee80211_bss_conf *info = &mv_vif->bss_info; + struct mwl8k_cmd_update_set_aid *cmd; + struct ieee80211_rate *bitrates = mv_vif->legacy_rates; + int count; + u16 prot_mode; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + cmd->aid = cpu_to_le16(info->aid); + + memcpy(cmd->bssid, mv_vif->bssid, IEEE80211_ADDR_LEN); + + prot_mode = MWL8K_FRAME_PROT_DISABLED; + + if (info->use_cts_prot) { + prot_mode = MWL8K_FRAME_PROT_11G; + } else { + switch (info->ht.operation_mode & + IEEE80211_HT_OP_MODE_PROTECTION) { + case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: + prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY; + break; + case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: + prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL; + break; + default: + prot_mode = MWL8K_FRAME_PROT_DISABLED; + break; + } + } + + cmd->protection_mode = cpu_to_le16(prot_mode); + + for (count = 0; count < mv_vif->legacy_nrates; count++) + cmd->supp_rates[count] = bitrates[count].hw_value; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_SET_RATE. + */ +struct mwl8k_cmd_update_rateset { + struct mwl8k_cmd_pkt header; + __u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY]; + + /* Bitmap for supported MCS codes. */ + __u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES]; + __u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES]; +} __attribute__((packed)); + +static int mwl8k_update_rateset(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); + struct mwl8k_cmd_update_rateset *cmd; + struct ieee80211_rate *bitrates = mv_vif->legacy_rates; + int count; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + for (count = 0; count < mv_vif->legacy_nrates; count++) + cmd->legacy_rates[count] = bitrates[count].hw_value; + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + +/* + * CMD_USE_FIXED_RATE. + */ +#define MWL8K_RATE_TABLE_SIZE 8 +#define MWL8K_UCAST_RATE 0 +#define MWL8K_MCAST_RATE 1 +#define MWL8K_BCAST_RATE 2 + +#define MWL8K_USE_FIXED_RATE 0x0001 +#define MWL8K_USE_AUTO_RATE 0x0002 + +struct mwl8k_rate_entry { + /* Set to 1 if HT rate, 0 if legacy. */ + __le32 is_ht_rate; + + /* Set to 1 to use retry_count field. */ + __le32 enable_retry; + + /* Specified legacy rate or MCS. */ + __le32 rate; + + /* Number of allowed retries. */ + __le32 retry_count; +} __attribute__((packed)); + +struct mwl8k_rate_table { + /* 1 to allow specified rate and below */ + __le32 allow_rate_drop; + __le32 num_rates; + struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE]; +} __attribute__((packed)); + +struct mwl8k_cmd_use_fixed_rate { + struct mwl8k_cmd_pkt header; + __le32 action; + struct mwl8k_rate_table rate_table; + + /* Unicast, Broadcast or Multicast */ + __le32 rate_type; + __le32 reserved1; + __le32 reserved2; +} __attribute__((packed)); + +static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw, + u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table) +{ + struct mwl8k_cmd_use_fixed_rate *cmd; + int count; + int rc; + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (cmd == NULL) + return -ENOMEM; + + cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE); + cmd->header.length = cpu_to_le16(sizeof(*cmd)); + + cmd->action = cpu_to_le32(action); + cmd->rate_type = cpu_to_le32(rate_type); + + if (rate_table != NULL) { + /* Copy over each field manually so + * that bitflipping can be done + */ + cmd->rate_table.allow_rate_drop = + cpu_to_le32(rate_table->allow_rate_drop); + cmd->rate_table.num_rates = + cpu_to_le32(rate_table->num_rates); + + for (count = 0; count < rate_table->num_rates; count++) { + struct mwl8k_rate_entry *dst = + &cmd->rate_table.rate_entry[count]; + struct mwl8k_rate_entry *src = + &rate_table->rate_entry[count]; + + dst->is_ht_rate = cpu_to_le32(src->is_ht_rate); + dst->enable_retry = cpu_to_le32(src->enable_retry); + dst->rate = cpu_to_le32(src->rate); + dst->retry_count = cpu_to_le32(src->retry_count); + } + } + + rc = mwl8k_post_cmd(hw, &cmd->header); + kfree(cmd); + + return rc; +} + + +/* + * Interrupt handling. + */ +static irqreturn_t mwl8k_interrupt(int irq, void *dev_id) +{ + struct ieee80211_hw *hw = dev_id; + struct mwl8k_priv *priv = hw->priv; + u32 status; + + status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); + iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); + + status &= priv->int_mask; + if (!status) + return IRQ_NONE; + + if (status & MWL8K_A2H_INT_TX_DONE) + tasklet_schedule(&priv->tx_reclaim_task); + + if (status & MWL8K_A2H_INT_RX_READY) { + while (rxq_process(hw, 0, 1)) + rxq_refill(hw, 0, 1); + } + + if (status & MWL8K_A2H_INT_OPC_DONE) { + if (priv->hostcmd_wait != NULL) { + complete(priv->hostcmd_wait); + priv->hostcmd_wait = NULL; + } + } + + if (status & MWL8K_A2H_INT_QUEUE_EMPTY) { + if (!priv->inconfig && + priv->radio_state && + mwl8k_txq_busy(priv)) + mwl8k_tx_start(priv); + } + + return IRQ_HANDLED; +} + + +/* + * Core driver operations. + */ +static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct mwl8k_priv *priv = hw->priv; + int index = skb_get_queue_mapping(skb); + int rc; + + if (priv->current_channel == NULL) { + printk(KERN_DEBUG "%s: dropped TX frame since radio " + "disabled\n", priv->name); + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + + rc = mwl8k_txq_xmit(hw, index, skb); + + return rc; +} + +struct mwl8k_work_struct { + /* Initialized by mwl8k_queue_work(). */ + struct work_struct wt; + + /* Required field passed in to mwl8k_queue_work(). */ + struct ieee80211_hw *hw; + + /* Required field passed in to mwl8k_queue_work(). */ + int (*wfunc)(struct work_struct *w); + + /* Initialized by mwl8k_queue_work(). */ + struct completion *cmd_wait; + + /* Result code. */ + int rc; + + /* + * Optional field. Refer to explanation of MWL8K_WQ_XXX_XXX + * flags for explanation. Defaults to MWL8K_WQ_DEFAULT_OPTIONS. + */ + u32 options; + + /* Optional field. Defaults to MWL8K_CONFIG_TIMEOUT_MS. */ + unsigned long timeout_ms; + + /* Optional field. Defaults to MWL8K_WQ_TXWAIT_ATTEMPTS. */ + u32 txwait_attempts; + + /* Optional field. Defaults to MWL8K_TXWAIT_MS. */ + u32 tx_timeout_ms; + u32 step; +}; + +/* Flags controlling behavior of config queue requests */ + +/* Caller spins while waiting for completion. */ +#define MWL8K_WQ_SPIN 0x00000001 + +/* Wait for TX queues to empty before proceeding with configuration. */ +#define MWL8K_WQ_TX_WAIT_EMPTY 0x00000002 + +/* Queue request and return immediately. */ +#define MWL8K_WQ_POST_REQUEST 0x00000004 + +/* + * Caller sleeps and waits for task complete notification. + * Do not use in atomic context. + */ +#define MWL8K_WQ_SLEEP 0x00000008 + +/* Free work struct when task is done. */ +#define MWL8K_WQ_FREE_WORKSTRUCT 0x00000010 + +/* + * Config request is queued and returns to caller imediately. Use + * this in atomic context. Work struct is freed by mwl8k_queue_work() + * when this flag is set. + */ +#define MWL8K_WQ_QUEUE_ONLY (MWL8K_WQ_POST_REQUEST | \ + MWL8K_WQ_FREE_WORKSTRUCT) + +/* Default work queue behavior is to sleep and wait for tx completion. */ +#define MWL8K_WQ_DEFAULT_OPTIONS (MWL8K_WQ_SLEEP | MWL8K_WQ_TX_WAIT_EMPTY) + +/* + * Default config request timeout. Add adjustments to make sure the + * config thread waits long enough for both tx wait and cmd wait before + * timing out. + */ + +/* Time to wait for all TXQs to drain. TX Doorbell is pressed each time. */ +#define MWL8K_TXWAIT_TIMEOUT_MS 1000 + +/* Default number of TX wait attempts. */ +#define MWL8K_WQ_TXWAIT_ATTEMPTS 4 + +/* Total time to wait for TXQ to drain. */ +#define MWL8K_TXWAIT_MS (MWL8K_TXWAIT_TIMEOUT_MS * \ + MWL8K_WQ_TXWAIT_ATTEMPTS) + +/* Scheduling slop. */ +#define MWL8K_OS_SCHEDULE_OVERHEAD_MS 200 + +#define MWL8K_CONFIG_TIMEOUT_MS (MWL8K_CMD_TIMEOUT_MS + \ + MWL8K_TXWAIT_MS + \ + MWL8K_OS_SCHEDULE_OVERHEAD_MS) + +static void mwl8k_config_thread(struct work_struct *wt) +{ + struct mwl8k_work_struct *worker = (struct mwl8k_work_struct *)wt; + struct ieee80211_hw *hw = worker->hw; + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + + spin_lock_irq(&priv->tx_lock); + priv->inconfig = true; + spin_unlock_irq(&priv->tx_lock); + + ieee80211_stop_queues(hw); + + /* + * Wait for host queues to drain before doing PHY + * reconfiguration. This avoids interrupting any in-flight + * DMA transfers to the hardware. + */ + if (worker->options & MWL8K_WQ_TX_WAIT_EMPTY) { + u32 timeout; + u32 time_remaining; + u32 iter; + u32 tx_wait_attempts = worker->txwait_attempts; + + time_remaining = worker->tx_timeout_ms; + if (!tx_wait_attempts) + tx_wait_attempts = 1; + + timeout = worker->tx_timeout_ms/tx_wait_attempts; + if (!timeout) + timeout = 1; + + iter = tx_wait_attempts; + do { + int wait_time; + + if (time_remaining > timeout) { + time_remaining -= timeout; + wait_time = timeout; + } else + wait_time = time_remaining; + + if (!wait_time) + wait_time = 1; + + rc = mwl8k_tx_wait_empty(hw, wait_time); + if (rc) + printk(KERN_ERR "%s() txwait timeout=%ums " + "Retry:%u/%u\n", __func__, timeout, + tx_wait_attempts - iter + 1, + tx_wait_attempts); + + } while (rc && --iter); + + rc = iter ? 0 : -ETIMEDOUT; + } + if (!rc) + rc = worker->wfunc(wt); + + spin_lock_irq(&priv->tx_lock); + priv->inconfig = false; + if (priv->pending_tx_pkts && priv->radio_state) + mwl8k_tx_start(priv); + spin_unlock_irq(&priv->tx_lock); + ieee80211_wake_queues(hw); + + worker->rc = rc; + if (worker->options & MWL8K_WQ_SLEEP) + complete(worker->cmd_wait); + + if (worker->options & MWL8K_WQ_FREE_WORKSTRUCT) + kfree(wt); +} + +static int mwl8k_queue_work(struct ieee80211_hw *hw, + struct mwl8k_work_struct *worker, + struct workqueue_struct *wqueue, + int (*wfunc)(struct work_struct *w)) +{ + unsigned long timeout = 0; + int rc = 0; + + DECLARE_COMPLETION_ONSTACK(cmd_wait); + + if (!worker->timeout_ms) + worker->timeout_ms = MWL8K_CONFIG_TIMEOUT_MS; + + if (!worker->options) + worker->options = MWL8K_WQ_DEFAULT_OPTIONS; + + if (!worker->txwait_attempts) + worker->txwait_attempts = MWL8K_WQ_TXWAIT_ATTEMPTS; + + if (!worker->tx_timeout_ms) + worker->tx_timeout_ms = MWL8K_TXWAIT_MS; + + worker->hw = hw; + worker->cmd_wait = &cmd_wait; + worker->rc = 1; + worker->wfunc = wfunc; + + INIT_WORK(&worker->wt, mwl8k_config_thread); + queue_work(wqueue, &worker->wt); + + if (worker->options & MWL8K_WQ_POST_REQUEST) { + rc = 0; + } else { + if (worker->options & MWL8K_WQ_SPIN) { + timeout = worker->timeout_ms; + while (timeout && (worker->rc > 0)) { + mdelay(1); + timeout--; + } + } else if (worker->options & MWL8K_WQ_SLEEP) + timeout = wait_for_completion_timeout(&cmd_wait, + msecs_to_jiffies(worker->timeout_ms)); + + if (timeout) + rc = worker->rc; + else { + cancel_work_sync(&worker->wt); + rc = -ETIMEDOUT; + } + } + + return rc; +} + +struct mwl8k_start_worker { + struct mwl8k_work_struct header; +}; + +static int mwl8k_start_wt(struct work_struct *wt) +{ + struct mwl8k_start_worker *worker = (struct mwl8k_start_worker *)wt; + struct ieee80211_hw *hw = worker->header.hw; + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + + if (priv->vif != NULL) { + rc = -EIO; + goto mwl8k_start_exit; + } + + /* Turn on radio */ + if (mwl8k_cmd_802_11_radio_control(hw, MWL8K_RADIO_ENABLE)) { + rc = -EIO; + goto mwl8k_start_exit; + } + + /* Purge TX/RX HW queues */ + if (mwl8k_cmd_set_pre_scan(hw)) { + rc = -EIO; + goto mwl8k_start_exit; + } + + if (mwl8k_cmd_set_post_scan(hw, "\x00\x00\x00\x00\x00\x00")) { + rc = -EIO; + goto mwl8k_start_exit; + } + + /* Enable firmware rate adaptation */ + if (mwl8k_cmd_setrateadaptmode(hw, 0)) { + rc = -EIO; + goto mwl8k_start_exit; + } + + /* Disable WMM. WMM gets enabled when stack sends WMM parms */ + if (mwl8k_set_wmm(hw, MWL8K_WMM_DISABLE)) { + rc = -EIO; + goto mwl8k_start_exit; + } + + /* Disable sniffer mode */ + if (mwl8k_enable_sniffer(hw, 0)) + rc = -EIO; + +mwl8k_start_exit: + return rc; +} + +static int mwl8k_start(struct ieee80211_hw *hw) +{ + struct mwl8k_start_worker *worker; + struct mwl8k_priv *priv = hw->priv; + int rc; + + /* Enable tx reclaim tasklet */ + tasklet_enable(&priv->tx_reclaim_task); + + rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, + IRQF_SHARED, MWL8K_NAME, hw); + if (rc) { + printk(KERN_ERR "%s: failed to register IRQ handler\n", + priv->name); + rc = -EIO; + goto mwl8k_start_disable_tasklet; + } + + /* Enable interrupts */ + iowrite32(priv->int_mask, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) { + rc = -ENOMEM; + goto mwl8k_start_disable_irq; + } + + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, mwl8k_start_wt); + kfree(worker); + if (!rc) + return rc; + + if (rc == -ETIMEDOUT) + printk(KERN_ERR "%s() timed out\n", __func__); + + rc = -EIO; + +mwl8k_start_disable_irq: + spin_lock_irq(&priv->tx_lock); + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + spin_unlock_irq(&priv->tx_lock); + free_irq(priv->pdev->irq, hw); + +mwl8k_start_disable_tasklet: + tasklet_disable(&priv->tx_reclaim_task); + + return rc; +} + +struct mwl8k_stop_worker { + struct mwl8k_work_struct header; +}; + +static int mwl8k_stop_wt(struct work_struct *wt) +{ + struct mwl8k_stop_worker *worker = (struct mwl8k_stop_worker *)wt; + struct ieee80211_hw *hw = worker->header.hw; + int rc; + + rc = mwl8k_cmd_802_11_radio_control(hw, MWL8K_RADIO_DISABLE); + + return rc; +} + +static void mwl8k_stop(struct ieee80211_hw *hw) +{ + int rc; + struct mwl8k_stop_worker *worker; + struct mwl8k_priv *priv = hw->priv; + int i; + + if (priv->vif != NULL) + return; + + ieee80211_stop_queues(hw); + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return; + + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, mwl8k_stop_wt); + kfree(worker); + if (rc == -ETIMEDOUT) + printk(KERN_ERR "%s() timed out\n", __func__); + + /* Disable interrupts */ + spin_lock_irq(&priv->tx_lock); + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + spin_unlock_irq(&priv->tx_lock); + free_irq(priv->pdev->irq, hw); + + /* Stop finalize join worker */ + cancel_work_sync(&priv->finalize_join_worker); + if (priv->beacon_skb != NULL) + dev_kfree_skb(priv->beacon_skb); + + /* Stop tx reclaim tasklet */ + tasklet_disable(&priv->tx_reclaim_task); + + /* Stop config thread */ + flush_workqueue(priv->config_wq); + + /* Return all skbs to mac80211 */ + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_reclaim(hw, i, 1); +} + +static int mwl8k_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_vif *mwl8k_vif; + + /* + * We only support one active interface at a time. + */ + if (priv->vif != NULL) + return -EBUSY; + + /* + * We only support managed interfaces for now. + */ + if (conf->type != NL80211_IFTYPE_STATION && + conf->type != NL80211_IFTYPE_MONITOR) + return -EINVAL; + + /* Clean out driver private area */ + mwl8k_vif = MWL8K_VIF(conf->vif); + memset(mwl8k_vif, 0, sizeof(*mwl8k_vif)); + + /* Save the mac address */ + memcpy(mwl8k_vif->mac_addr, conf->mac_addr, IEEE80211_ADDR_LEN); + + /* Back pointer to parent config block */ + mwl8k_vif->priv = priv; + + /* Setup initial PHY parameters */ + memcpy(mwl8k_vif->legacy_rates , + priv->rates, sizeof(mwl8k_vif->legacy_rates)); + mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); + + /* Set Initial sequence number to zero */ + mwl8k_vif->seqno = 0; + + priv->vif = conf->vif; + priv->current_channel = NULL; + + return 0; +} + +static void mwl8k_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct mwl8k_priv *priv = hw->priv; + + if (priv->vif == NULL) + return; + + priv->vif = NULL; +} + +struct mwl8k_config_worker { + struct mwl8k_work_struct header; + u32 changed; +}; + +static int mwl8k_config_wt(struct work_struct *wt) +{ + struct mwl8k_config_worker *worker = + (struct mwl8k_config_worker *)wt; + struct ieee80211_hw *hw = worker->header.hw; + struct ieee80211_conf *conf = &hw->conf; + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + + if (!conf->radio_enabled) { + mwl8k_cmd_802_11_radio_control(hw, MWL8K_RADIO_DISABLE); + priv->current_channel = NULL; + rc = 0; + goto mwl8k_config_exit; + } + + if (mwl8k_cmd_802_11_radio_control(hw, MWL8K_RADIO_ENABLE)) { + rc = -EINVAL; + goto mwl8k_config_exit; + } + + priv->current_channel = conf->channel; + + if (mwl8k_cmd_set_rf_channel(hw, conf->channel)) { + rc = -EINVAL; + goto mwl8k_config_exit; + } + + if (conf->power_level > 18) + conf->power_level = 18; + if (mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level)) { + rc = -EINVAL; + goto mwl8k_config_exit; + } + + if (mwl8k_cmd_mimo_config(hw, 0x7, 0x7)) + rc = -EINVAL; + +mwl8k_config_exit: + return rc; +} + +static int mwl8k_config(struct ieee80211_hw *hw, u32 changed) +{ + int rc = 0; + struct mwl8k_config_worker *worker; + struct mwl8k_priv *priv = hw->priv; + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return -ENOMEM; + + worker->changed = changed; + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, mwl8k_config_wt); + if (rc == -ETIMEDOUT) { + printk(KERN_ERR "%s() timed out.\n", __func__); + rc = -EINVAL; + } + + kfree(worker); + + /* + * mac80211 will crash on anything other than -EINVAL on + * error. Looks like wireless extensions which calls mac80211 + * may be the actual culprit... + */ + return rc ? -EINVAL : 0; +} + +static int mwl8k_config_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_if_conf *conf) +{ + struct mwl8k_vif *mv_vif = MWL8K_VIF(vif); + u32 changed = conf->changed; + + if (changed & IEEE80211_IFCC_BSSID) + memcpy(mv_vif->bssid, conf->bssid, IEEE80211_ADDR_LEN); + + return 0; +} + +struct mwl8k_bss_info_changed_worker { + struct mwl8k_work_struct header; + struct ieee80211_vif *vif; + struct ieee80211_bss_conf *info; + u32 changed; +}; + +static int mwl8k_bss_info_changed_wt(struct work_struct *wt) +{ + struct mwl8k_bss_info_changed_worker *worker = + (struct mwl8k_bss_info_changed_worker *)wt; + struct ieee80211_hw *hw = worker->header.hw; + struct ieee80211_vif *vif = worker->vif; + struct ieee80211_bss_conf *info = worker->info; + u32 changed; + int rc; + + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif); + + changed = worker->changed; + priv->capture_beacon = false; + + if (info->assoc) { + memcpy(&mwl8k_vif->bss_info, info, + sizeof(struct ieee80211_bss_conf)); + + /* Install rates */ + if (mwl8k_update_rateset(hw, vif)) + goto mwl8k_bss_info_changed_exit; + + /* Turn on rate adaptation */ + if (mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE, + MWL8K_UCAST_RATE, NULL)) + goto mwl8k_bss_info_changed_exit; + + /* Set radio preamble */ + if (mwl8k_set_radio_preamble(hw, + info->use_short_preamble)) + goto mwl8k_bss_info_changed_exit; + + /* Set slot time */ + if (mwl8k_cmd_set_slot(hw, info->use_short_slot ? + MWL8K_SHORT_SLOTTIME : MWL8K_LONG_SLOTTIME)) + goto mwl8k_bss_info_changed_exit; + + /* Update peer rate info */ + if (mwl8k_cmd_update_sta_db(hw, vif, + MWL8K_STA_DB_MODIFY_ENTRY)) + goto mwl8k_bss_info_changed_exit; + + /* Set AID */ + if (mwl8k_cmd_set_aid(hw, vif)) + goto mwl8k_bss_info_changed_exit; + + /* + * Finalize the join. Tell rx handler to process + * next beacon from our BSSID. + */ + memcpy(priv->capture_bssid, + mwl8k_vif->bssid, IEEE80211_ADDR_LEN); + priv->capture_beacon = true; + } else { + mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY); + memset(&mwl8k_vif->bss_info, 0, + sizeof(struct ieee80211_bss_conf)); + memset(mwl8k_vif->bssid, 0, IEEE80211_ADDR_LEN); + } + +mwl8k_bss_info_changed_exit: + rc = 0; + return rc; +} + +static void mwl8k_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *info, + u32 changed) +{ + struct mwl8k_bss_info_changed_worker *worker; + struct mwl8k_priv *priv = hw->priv; + int rc; + + if ((changed & BSS_CHANGED_ASSOC) == 0) + return; + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return; + + worker->vif = vif; + worker->info = info; + worker->changed = changed; + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, + mwl8k_bss_info_changed_wt); + kfree(worker); + if (rc == -ETIMEDOUT) + printk(KERN_ERR "%s() timed out\n", __func__); +} + +struct mwl8k_configure_filter_worker { + struct mwl8k_work_struct header; + unsigned int changed_flags; + unsigned int *total_flags; + int mc_count; + struct dev_addr_list *mclist; +}; + +#define MWL8K_SUPPORTED_IF_FLAGS FIF_BCN_PRBRESP_PROMISC + +static int mwl8k_configure_filter_wt(struct work_struct *wt) +{ + struct mwl8k_configure_filter_worker *worker = + (struct mwl8k_configure_filter_worker *)wt; + + struct ieee80211_hw *hw = worker->header.hw; + unsigned int changed_flags = worker->changed_flags; + unsigned int *total_flags = worker->total_flags; + int mc_count = worker->mc_count; + struct dev_addr_list *mclist = worker->mclist; + + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_vif *mv_vif; + int rc = 0; + + if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { + if (*total_flags & FIF_BCN_PRBRESP_PROMISC) + rc = mwl8k_cmd_set_pre_scan(hw); + else { + mv_vif = MWL8K_VIF(priv->vif); + rc = mwl8k_cmd_set_post_scan(hw, mv_vif->bssid); + } + } + + if (rc) + goto mwl8k_configure_filter_exit; + if (mc_count) { + mc_count = mc_count < priv->num_mcaddrs ? + mc_count : priv->num_mcaddrs; + rc = mwl8k_cmd_mac_multicast_adr(hw, mc_count, mclist); + if (rc) + printk(KERN_ERR + "%s()Error setting multicast addresses\n", + __func__); + } + +mwl8k_configure_filter_exit: + return rc; +} + +static void mwl8k_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, + int mc_count, + struct dev_addr_list *mclist) +{ + + struct mwl8k_configure_filter_worker *worker; + struct mwl8k_priv *priv = hw->priv; + + /* Clear unsupported feature flags */ + *total_flags &= MWL8K_SUPPORTED_IF_FLAGS; + + if (!(changed_flags & MWL8K_SUPPORTED_IF_FLAGS) && !mc_count) + return; + + worker = kzalloc(sizeof(*worker), GFP_ATOMIC); + if (worker == NULL) + return; + + worker->header.options = MWL8K_WQ_QUEUE_ONLY | MWL8K_WQ_TX_WAIT_EMPTY; + worker->changed_flags = changed_flags; + worker->total_flags = total_flags; + worker->mc_count = mc_count; + worker->mclist = mclist; + + mwl8k_queue_work(hw, &worker->header, priv->config_wq, + mwl8k_configure_filter_wt); +} + +struct mwl8k_set_rts_threshold_worker { + struct mwl8k_work_struct header; + u32 value; +}; + +static int mwl8k_set_rts_threshold_wt(struct work_struct *wt) +{ + struct mwl8k_set_rts_threshold_worker *worker = + (struct mwl8k_set_rts_threshold_worker *)wt; + + struct ieee80211_hw *hw = worker->header.hw; + u16 threshold = (u16)(worker->value); + int rc; + + rc = mwl8k_rts_threshold(hw, MWL8K_CMD_SET, &threshold); + + return rc; +} + +static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value) +{ + int rc; + struct mwl8k_set_rts_threshold_worker *worker; + struct mwl8k_priv *priv = hw->priv; + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return -ENOMEM; + + worker->value = value; + + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, + mwl8k_set_rts_threshold_wt); + kfree(worker); + + if (rc == -ETIMEDOUT) { + printk(KERN_ERR "%s() timed out\n", __func__); + rc = -EINVAL; + } + + return rc; +} + +struct mwl8k_conf_tx_worker { + struct mwl8k_work_struct header; + u16 queue; + const struct ieee80211_tx_queue_params *params; +}; + +static int mwl8k_conf_tx_wt(struct work_struct *wt) +{ + struct mwl8k_conf_tx_worker *worker = + (struct mwl8k_conf_tx_worker *)wt; + + struct ieee80211_hw *hw = worker->header.hw; + u16 queue = worker->queue; + const struct ieee80211_tx_queue_params *params = worker->params; + + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + + if (priv->wmm_mode == MWL8K_WMM_DISABLE) + if (mwl8k_set_wmm(hw, MWL8K_WMM_ENABLE)) { + rc = -EINVAL; + goto mwl8k_conf_tx_exit; + } + + if (mwl8k_set_edca_params(hw, GET_TXQ(queue), params->cw_min, + params->cw_max, params->aifs, params->txop)) + rc = -EINVAL; +mwl8k_conf_tx_exit: + return rc; +} + +static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue, + const struct ieee80211_tx_queue_params *params) +{ + int rc; + struct mwl8k_conf_tx_worker *worker; + struct mwl8k_priv *priv = hw->priv; + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return -ENOMEM; + + worker->queue = queue; + worker->params = params; + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, mwl8k_conf_tx_wt); + kfree(worker); + if (rc == -ETIMEDOUT) { + printk(KERN_ERR "%s() timed out\n", __func__); + rc = -EINVAL; + } + return rc; +} + +static int mwl8k_get_tx_stats(struct ieee80211_hw *hw, + struct ieee80211_tx_queue_stats *stats) +{ + struct mwl8k_priv *priv = hw->priv; + struct mwl8k_tx_queue *txq; + int index; + + spin_lock_bh(&priv->tx_lock); + for (index = 0; index < MWL8K_TX_QUEUES; index++) { + txq = priv->txq + index; + memcpy(&stats[index], &txq->tx_stats, + sizeof(struct ieee80211_tx_queue_stats)); + } + spin_unlock_bh(&priv->tx_lock); + return 0; +} + +struct mwl8k_get_stats_worker { + struct mwl8k_work_struct header; + struct ieee80211_low_level_stats *stats; +}; + +static int mwl8k_get_stats_wt(struct work_struct *wt) +{ + struct mwl8k_get_stats_worker *worker = + (struct mwl8k_get_stats_worker *)wt; + + return mwl8k_cmd_802_11_get_stat(worker->header.hw, worker->stats); +} + +static int mwl8k_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + int rc; + struct mwl8k_get_stats_worker *worker; + struct mwl8k_priv *priv = hw->priv; + + worker = kzalloc(sizeof(*worker), GFP_KERNEL); + if (worker == NULL) + return -ENOMEM; + + worker->stats = stats; + rc = mwl8k_queue_work(hw, &worker->header, + priv->config_wq, mwl8k_get_stats_wt); + + kfree(worker); + if (rc == -ETIMEDOUT) { + printk(KERN_ERR "%s() timed out\n", __func__); + rc = -EINVAL; + } + + return rc; +} + +static const struct ieee80211_ops mwl8k_ops = { + .tx = mwl8k_tx, + .start = mwl8k_start, + .stop = mwl8k_stop, + .add_interface = mwl8k_add_interface, + .remove_interface = mwl8k_remove_interface, + .config = mwl8k_config, + .config_interface = mwl8k_config_interface, + .bss_info_changed = mwl8k_bss_info_changed, + .configure_filter = mwl8k_configure_filter, + .set_rts_threshold = mwl8k_set_rts_threshold, + .conf_tx = mwl8k_conf_tx, + .get_tx_stats = mwl8k_get_tx_stats, + .get_stats = mwl8k_get_stats, +}; + +static void mwl8k_tx_reclaim_handler(unsigned long data) +{ + int i; + struct ieee80211_hw *hw = (struct ieee80211_hw *) data; + struct mwl8k_priv *priv = hw->priv; + + spin_lock_bh(&priv->tx_lock); + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_reclaim(hw, i, 0); + + if (priv->tx_wait != NULL) { + int count = mwl8k_txq_busy(priv); + if (count == 0) { + complete(priv->tx_wait); + priv->tx_wait = NULL; + } + } + spin_unlock_bh(&priv->tx_lock); +} + +static void mwl8k_finalize_join_worker(struct work_struct *work) +{ + struct mwl8k_priv *priv = + container_of(work, struct mwl8k_priv, finalize_join_worker); + struct sk_buff *skb = priv->beacon_skb; + u8 dtim = (MWL8K_VIF(priv->vif))->bss_info.dtim_period; + + mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); + dev_kfree_skb(skb); + + priv->beacon_skb = NULL; +} + +static int __devinit mwl8k_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct ieee80211_hw *hw; + struct mwl8k_priv *priv; + DECLARE_MAC_BUF(mac); + int rc; + int i; + u8 *fw; + + rc = pci_enable_device(pdev); + if (rc) { + printk(KERN_ERR "%s: Cannot enable new PCI device\n", + MWL8K_NAME); + return rc; + } + + rc = pci_request_regions(pdev, MWL8K_NAME); + if (rc) { + printk(KERN_ERR "%s: Cannot obtain PCI resources\n", + MWL8K_NAME); + return rc; + } + + pci_set_master(pdev); + + hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops); + if (hw == NULL) { + printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME); + rc = -ENOMEM; + goto err_free_reg; + } + + priv = hw->priv; + priv->hw = hw; + priv->pdev = pdev; + priv->hostcmd_wait = NULL; + priv->tx_wait = NULL; + priv->inconfig = false; + priv->wep_enabled = 0; + priv->wmm_mode = false; + priv->pending_tx_pkts = 0; + strncpy(priv->name, MWL8K_NAME, sizeof(priv->name)); + + spin_lock_init(&priv->fw_lock); + + SET_IEEE80211_DEV(hw, &pdev->dev); + pci_set_drvdata(pdev, hw); + + priv->regs = pci_iomap(pdev, 1, 0x10000); + if (priv->regs == NULL) { + printk(KERN_ERR "%s: Cannot map device memory\n", priv->name); + goto err_iounmap; + } + + memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels)); + priv->band.band = IEEE80211_BAND_2GHZ; + priv->band.channels = priv->channels; + priv->band.n_channels = ARRAY_SIZE(mwl8k_channels); + priv->band.bitrates = priv->rates; + priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates); + hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band; + + BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates)); + memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates)); + + /* + * Extra headroom is the size of the required DMA header + * minus the size of the smallest 802.11 frame (CTS frame). + */ + hw->extra_tx_headroom = + sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts); + + hw->channel_change_time = 10; + + hw->queues = MWL8K_TX_QUEUES; + + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_MONITOR); + + /* Set rssi and noise values to dBm */ + hw->flags |= (IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM); + hw->vif_data_size = sizeof(struct mwl8k_vif); + priv->vif = NULL; + + /* Set default radio state and preamble */ + priv->radio_preamble = MWL8K_RADIO_DEFAULT_PREAMBLE; + priv->radio_state = MWL8K_RADIO_DISABLE; + + /* Finalize join worker */ + INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker); + + /* TX reclaim tasklet */ + tasklet_init(&priv->tx_reclaim_task, + mwl8k_tx_reclaim_handler, (unsigned long)hw); + tasklet_disable(&priv->tx_reclaim_task); + + /* Config workthread */ + priv->config_wq = create_singlethread_workqueue("mwl8k_config"); + if (priv->config_wq == NULL) + goto err_iounmap; + + /* Power management cookie */ + priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma); + if (priv->cookie == NULL) + goto err_iounmap; + + rc = mwl8k_rxq_init(hw, 0); + if (rc) + goto err_iounmap; + rxq_refill(hw, 0, INT_MAX); + + spin_lock_init(&priv->tx_lock); + + for (i = 0; i < MWL8K_TX_QUEUES; i++) { + rc = mwl8k_txq_init(hw, i); + if (rc) + goto err_free_queues; + } + + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS); + priv->int_mask = 0; + iowrite32(priv->int_mask, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL); + iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK); + + rc = request_irq(priv->pdev->irq, &mwl8k_interrupt, + IRQF_SHARED, MWL8K_NAME, hw); + if (rc) { + printk(KERN_ERR "%s: failed to register IRQ handler\n", + priv->name); + goto err_free_queues; + } + + /* Reset firmware and hardware */ + mwl8k_hw_reset(priv); + + /* Ask userland hotplug daemon for the device firmware */ + rc = mwl8k_request_firmware(priv, (u32)id->driver_data); + if (rc) { + printk(KERN_ERR "%s: Firmware files not found\n", priv->name); + goto err_free_irq; + } + + /* Load firmware into hardware */ + rc = mwl8k_load_firmware(priv); + if (rc) { + printk(KERN_ERR "%s: Cannot start firmware\n", priv->name); + goto err_stop_firmware; + } + + /* Reclaim memory once firmware is successfully loaded */ + mwl8k_release_firmware(priv); + + /* + * Temporarily enable interrupts. Initial firmware host + * commands use interrupts and avoids polling. Disable + * interrupts when done. + */ + priv->int_mask |= MWL8K_A2H_EVENTS; + + iowrite32(priv->int_mask, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + + /* Get config data, mac addrs etc */ + rc = mwl8k_cmd_get_hw_spec(hw); + if (rc) { + printk(KERN_ERR "%s: Cannot initialise firmware\n", priv->name); + goto err_stop_firmware; + } + + /* Turn radio off */ + rc = mwl8k_cmd_802_11_radio_control(hw, MWL8K_RADIO_DISABLE); + if (rc) { + printk(KERN_ERR "%s: Cannot disable\n", priv->name); + goto err_stop_firmware; + } + + /* Disable interrupts */ + spin_lock_irq(&priv->tx_lock); + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + spin_unlock_irq(&priv->tx_lock); + free_irq(priv->pdev->irq, hw); + + rc = ieee80211_register_hw(hw); + if (rc) { + printk(KERN_ERR "%s: Cannot register device\n", priv->name); + goto err_stop_firmware; + } + + fw = (u8 *)&priv->fw_rev; + printk(KERN_INFO "%s: 88W%u %s\n", priv->name, priv->part_num, + MWL8K_DESC); + printk(KERN_INFO "%s: Driver Ver:%s Firmware Ver:%u.%u.%u.%u\n", + priv->name, MWL8K_VERSION, fw[3], fw[2], fw[1], fw[0]); + printk(KERN_INFO "%s: MAC Address: %s\n", priv->name, + print_mac(mac, hw->wiphy->perm_addr)); + + return 0; + +err_stop_firmware: + mwl8k_hw_reset(priv); + mwl8k_release_firmware(priv); + +err_free_irq: + spin_lock_irq(&priv->tx_lock); + iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK); + spin_unlock_irq(&priv->tx_lock); + free_irq(priv->pdev->irq, hw); + +err_free_queues: + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_deinit(hw, i); + mwl8k_rxq_deinit(hw, 0); + +err_iounmap: + if (priv->cookie != NULL) + pci_free_consistent(priv->pdev, 4, + priv->cookie, priv->cookie_dma); + + if (priv->regs != NULL) + pci_iounmap(pdev, priv->regs); + + if (priv->config_wq != NULL) + destroy_workqueue(priv->config_wq); + + pci_set_drvdata(pdev, NULL); + ieee80211_free_hw(hw); + +err_free_reg: + pci_release_regions(pdev); + pci_disable_device(pdev); + + return rc; +} + +static void __devexit mwl8k_remove(struct pci_dev *pdev) +{ + printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__); +} + +static void __devexit mwl8k_shutdown(struct pci_dev *pdev) +{ + struct ieee80211_hw *hw = pci_get_drvdata(pdev); + struct mwl8k_priv *priv; + int i; + + if (hw == NULL) + return; + priv = hw->priv; + + ieee80211_stop_queues(hw); + + /* Remove tx reclaim tasklet */ + tasklet_kill(&priv->tx_reclaim_task); + + /* Stop config thread */ + destroy_workqueue(priv->config_wq); + + /* Stop hardware */ + mwl8k_hw_reset(priv); + + /* Return all skbs to mac80211 */ + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_reclaim(hw, i, 1); + + ieee80211_unregister_hw(hw); + + for (i = 0; i < MWL8K_TX_QUEUES; i++) + mwl8k_txq_deinit(hw, i); + + mwl8k_rxq_deinit(hw, 0); + + pci_free_consistent(priv->pdev, 4, + priv->cookie, priv->cookie_dma); + + pci_iounmap(pdev, priv->regs); + pci_set_drvdata(pdev, NULL); + ieee80211_free_hw(hw); + pci_release_regions(pdev); + pci_disable_device(pdev); +} + +static struct pci_driver mwl8k_driver = { + .name = MWL8K_NAME, + .id_table = mwl8k_table, + .probe = mwl8k_probe, + .remove = __devexit_p(mwl8k_remove), + .shutdown = __devexit_p(mwl8k_shutdown), +}; + +static int __init mwl8k_init(void) +{ + return pci_register_driver(&mwl8k_driver); +} + +static void __exit mwl8k_exit(void) +{ + pci_unregister_driver(&mwl8k_driver); +} + +module_init(mwl8k_init); +module_exit(mwl8k_exit); -- cgit v1.2.3 From 75ca88c9701bf8f65fc1f009f10dd64b0378b977 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 21 Mar 2009 23:11:49 +0100 Subject: ar9170: update Makefile, Kconfig and MAINTAINERS This patch update all necessary Makefile and Kconfig files. Now you can then enable ar9170 in the kernel configuration under: Device Drivers ---> [*] Network device support ---> Wireless LAN ---> [*] Wireless LAN (IEEE 802.11) Atheros AR9170 support Atheros AR9170 USB support Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- MAINTAINERS | 8 ++++++++ drivers/net/wireless/Kconfig | 1 + drivers/net/wireless/Makefile | 1 + drivers/net/wireless/ar9170/Kconfig | 28 ++++++++++++++++++++++++++++ drivers/net/wireless/ar9170/Makefile | 5 +++++ 5 files changed, 43 insertions(+) create mode 100644 drivers/net/wireless/ar9170/Kconfig create mode 100644 drivers/net/wireless/ar9170/Makefile (limited to 'drivers/net/wireless/Kconfig') diff --git a/MAINTAINERS b/MAINTAINERS index bdadcb3c3f48..64c89c215b01 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -765,6 +765,14 @@ L: linux-wireless@vger.kernel.org L: ath9k-devel@lists.ath9k.org S: Supported +ATHEROS AR9170 WIRELESS DRIVER +P: Christian Lamparter +M: chunkeey@web.de +L: linux-wireless@vger.kernel.org +W: http://wireless.kernel.org/en/users/Drivers/ar9170 +S: Maintained +F: drivers/net/wireless/ar9170/ + ATI_REMOTE2 DRIVER P: Ville Syrjala M: syrjala@sci.fi diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 612fffe100a6..8a0823588c51 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -485,6 +485,7 @@ config MWL8K source "drivers/net/wireless/p54/Kconfig" source "drivers/net/wireless/ath5k/Kconfig" source "drivers/net/wireless/ath9k/Kconfig" +source "drivers/net/wireless/ar9170/Kconfig" source "drivers/net/wireless/ipw2x00/Kconfig" source "drivers/net/wireless/iwlwifi/Kconfig" source "drivers/net/wireless/hostap/Kconfig" diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index d780487c420f..5e7c9acb6bec 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -57,5 +57,6 @@ obj-$(CONFIG_P54_COMMON) += p54/ obj-$(CONFIG_ATH5K) += ath5k/ obj-$(CONFIG_ATH9K) += ath9k/ +obj-$(CONFIG_AR9170_COMMON) += ar9170/ obj-$(CONFIG_MAC80211_HWSIM) += mac80211_hwsim.o diff --git a/drivers/net/wireless/ar9170/Kconfig b/drivers/net/wireless/ar9170/Kconfig new file mode 100644 index 000000000000..f6611876e285 --- /dev/null +++ b/drivers/net/wireless/ar9170/Kconfig @@ -0,0 +1,28 @@ +config AR9170_COMMON + tristate "Atheros AR9170 support" + depends on WLAN_80211 && MAC80211 && EXPERIMENTAL + help + This is common code for AR9170 based devices. + This module does nothing by itself - the USB/(SPI) frontends + also need to be enabled in order to support any devices. + + Say Y if you have the hardware, or M to build a module called + ar9170common. + +config AR9170_USB + tristate "Atheros AR9170 USB support" + depends on AR9170_COMMON && USB + select FW_LOADER + help + This is a driver for the Atheros "otus" 802.11n USB devices. + + These devices require additional firmware (2 files). + For now, these files can be downloaded from here: + http://wireless.kernel.org/en/users/Drivers/ar9170 + + If you choose to build a module, it'll be called ar9170usb. + +config AR9170_LEDS + bool + depends on AR9170_COMMON && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = AR9170_COMMON) + default y diff --git a/drivers/net/wireless/ar9170/Makefile b/drivers/net/wireless/ar9170/Makefile new file mode 100644 index 000000000000..59b174dd466a --- /dev/null +++ b/drivers/net/wireless/ar9170/Makefile @@ -0,0 +1,5 @@ +ar9170common-objs += main.o cmd.o mac.o phy.o led.o +ar9170usb-objs += usb.o + +obj-$(CONFIG_AR9170_COMMON) += ar9170common.o +obj-$(CONFIG_AR9170_USB) += ar9170usb.o -- cgit v1.2.3