diff options
| author | Kalle Valo <kvalo@codeaurora.org> | 2015-11-17 20:49:23 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2015-11-18 12:20:36 +0300 |
| commit | 58619b14d106e453e3924810fac16a8644b04db1 (patch) | |
| tree | 46f76b765f3e469cb651ae1d7dc8cafac4fc975e /drivers/net/wireless/b43/main.c | |
| parent | 30fe0f9b8c755d9aab04bb7c98ce9c7835c3bd24 (diff) | |
| download | linux-58619b14d106e453e3924810fac16a8644b04db1.tar.xz | |
b43: move under broadcom vendor directory
Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/b43/main.c')
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 5895 |
1 files changed, 0 insertions, 5895 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c deleted file mode 100644 index ec013fbd6a81..000000000000 --- a/drivers/net/wireless/b43/main.c +++ /dev/null @@ -1,5895 +0,0 @@ -/* - - Broadcom B43 wireless driver - - Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> - Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it> - Copyright (c) 2005-2009 Michael Buesch <m@bues.ch> - Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> - Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> - Copyright (c) 2010-2011 Rafał Miłecki <zajec5@gmail.com> - - SDIO support - Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es> - - Some parts of the code in this file are derived from the ipw2200 - driver Copyright(c) 2003 - 2004 Intel Corporation. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; see the file COPYING. If not, write to - the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, - Boston, MA 02110-1301, USA. - -*/ - -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/if_arp.h> -#include <linux/etherdevice.h> -#include <linux/firmware.h> -#include <linux/workqueue.h> -#include <linux/skbuff.h> -#include <linux/io.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> -#include <asm/unaligned.h> - -#include "b43.h" -#include "main.h" -#include "debugfs.h" -#include "phy_common.h" -#include "phy_g.h" -#include "phy_n.h" -#include "dma.h" -#include "pio.h" -#include "sysfs.h" -#include "xmit.h" -#include "lo.h" -#include "sdio.h" -#include <linux/mmc/sdio_func.h> - -MODULE_DESCRIPTION("Broadcom B43 wireless driver"); -MODULE_AUTHOR("Martin Langer"); -MODULE_AUTHOR("Stefano Brivio"); -MODULE_AUTHOR("Michael Buesch"); -MODULE_AUTHOR("Gábor Stefanik"); -MODULE_AUTHOR("Rafał Miłecki"); -MODULE_LICENSE("GPL"); - -MODULE_FIRMWARE("b43/ucode11.fw"); -MODULE_FIRMWARE("b43/ucode13.fw"); -MODULE_FIRMWARE("b43/ucode14.fw"); -MODULE_FIRMWARE("b43/ucode15.fw"); -MODULE_FIRMWARE("b43/ucode16_mimo.fw"); -MODULE_FIRMWARE("b43/ucode5.fw"); -MODULE_FIRMWARE("b43/ucode9.fw"); - -static int modparam_bad_frames_preempt; -module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); -MODULE_PARM_DESC(bad_frames_preempt, - "enable(1) / disable(0) Bad Frames Preemption"); - -static char modparam_fwpostfix[16]; -module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); -MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); - -static int modparam_hwpctl; -module_param_named(hwpctl, modparam_hwpctl, int, 0444); -MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); - -static int modparam_nohwcrypt; -module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); -MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); - -static int modparam_hwtkip; -module_param_named(hwtkip, modparam_hwtkip, int, 0444); -MODULE_PARM_DESC(hwtkip, "Enable hardware tkip."); - -static int modparam_qos = 1; -module_param_named(qos, modparam_qos, int, 0444); -MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); - -static int modparam_btcoex = 1; -module_param_named(btcoex, modparam_btcoex, int, 0444); -MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)"); - -int b43_modparam_verbose = B43_VERBOSITY_DEFAULT; -module_param_named(verbose, b43_modparam_verbose, int, 0644); -MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug"); - -static int b43_modparam_pio = 0; -module_param_named(pio, b43_modparam_pio, int, 0644); -MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO"); - -static int modparam_allhwsupport = !IS_ENABLED(CONFIG_BRCMSMAC); -module_param_named(allhwsupport, modparam_allhwsupport, int, 0444); -MODULE_PARM_DESC(allhwsupport, "Enable support for all hardware (even it if overlaps with the brcmsmac driver)"); - -#ifdef CONFIG_B43_BCMA -static const struct bcma_device_id b43_bcma_tbl[] = { - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x15, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1C, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1E, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x28, BCMA_ANY_CLASS), - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x2A, BCMA_ANY_CLASS), - {}, -}; -MODULE_DEVICE_TABLE(bcma, b43_bcma_tbl); -#endif - -#ifdef CONFIG_B43_SSB -static const struct ssb_device_id b43_ssb_tbl[] = { - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15), - SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), - {}, -}; -MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); -#endif - -/* Channel and ratetables are shared for all devices. - * They can't be const, because ieee80211 puts some precalculated - * data in there. This data is the same for all devices, so we don't - * get concurrency issues */ -#define RATETAB_ENT(_rateid, _flags) \ - { \ - .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ - .hw_value = (_rateid), \ - .flags = (_flags), \ - } - -/* - * NOTE: When changing this, sync with xmit.c's - * b43_plcp_get_bitrate_idx_* functions! - */ -static struct ieee80211_rate __b43_ratetable[] = { - RATETAB_ENT(B43_CCK_RATE_1MB, 0), - RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), - RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), - RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), - RATETAB_ENT(B43_OFDM_RATE_6MB, 0), - RATETAB_ENT(B43_OFDM_RATE_9MB, 0), - RATETAB_ENT(B43_OFDM_RATE_12MB, 0), - RATETAB_ENT(B43_OFDM_RATE_18MB, 0), - RATETAB_ENT(B43_OFDM_RATE_24MB, 0), - RATETAB_ENT(B43_OFDM_RATE_36MB, 0), - RATETAB_ENT(B43_OFDM_RATE_48MB, 0), - RATETAB_ENT(B43_OFDM_RATE_54MB, 0), -}; - -#define b43_a_ratetable (__b43_ratetable + 4) -#define b43_a_ratetable_size 8 -#define b43_b_ratetable (__b43_ratetable + 0) -#define b43_b_ratetable_size 4 -#define b43_g_ratetable (__b43_ratetable + 0) -#define b43_g_ratetable_size 12 - -#define CHAN2G(_channel, _freq, _flags) { \ - .band = IEEE80211_BAND_2GHZ, \ - .center_freq = (_freq), \ - .hw_value = (_channel), \ - .flags = (_flags), \ - .max_antenna_gain = 0, \ - .max_power = 30, \ -} -static struct ieee80211_channel b43_2ghz_chantable[] = { - CHAN2G(1, 2412, 0), - CHAN2G(2, 2417, 0), - CHAN2G(3, 2422, 0), - CHAN2G(4, 2427, 0), - CHAN2G(5, 2432, 0), - CHAN2G(6, 2437, 0), - CHAN2G(7, 2442, 0), - CHAN2G(8, 2447, 0), - CHAN2G(9, 2452, 0), - CHAN2G(10, 2457, 0), - CHAN2G(11, 2462, 0), - CHAN2G(12, 2467, 0), - CHAN2G(13, 2472, 0), - CHAN2G(14, 2484, 0), -}; - -/* No support for the last 3 channels (12, 13, 14) */ -#define b43_2ghz_chantable_limited_size 11 -#undef CHAN2G - -#define CHAN4G(_channel, _flags) { \ - .band = IEEE80211_BAND_5GHZ, \ - .center_freq = 4000 + (5 * (_channel)), \ - .hw_value = (_channel), \ - .flags = (_flags), \ - .max_antenna_gain = 0, \ - .max_power = 30, \ -} -#define CHAN5G(_channel, _flags) { \ - .band = IEEE80211_BAND_5GHZ, \ - .center_freq = 5000 + (5 * (_channel)), \ - .hw_value = (_channel), \ - .flags = (_flags), \ - .max_antenna_gain = 0, \ - .max_power = 30, \ -} -static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { - CHAN4G(184, 0), CHAN4G(186, 0), - CHAN4G(188, 0), CHAN4G(190, 0), - CHAN4G(192, 0), CHAN4G(194, 0), - CHAN4G(196, 0), CHAN4G(198, 0), - CHAN4G(200, 0), CHAN4G(202, 0), - CHAN4G(204, 0), CHAN4G(206, 0), - CHAN4G(208, 0), CHAN4G(210, 0), - CHAN4G(212, 0), CHAN4G(214, 0), - CHAN4G(216, 0), CHAN4G(218, 0), - CHAN4G(220, 0), CHAN4G(222, 0), - CHAN4G(224, 0), CHAN4G(226, 0), - CHAN4G(228, 0), - CHAN5G(32, 0), CHAN5G(34, 0), - CHAN5G(36, 0), CHAN5G(38, 0), - CHAN5G(40, 0), CHAN5G(42, 0), - CHAN5G(44, 0), CHAN5G(46, 0), - CHAN5G(48, 0), CHAN5G(50, 0), - CHAN5G(52, 0), CHAN5G(54, 0), - CHAN5G(56, 0), CHAN5G(58, 0), - CHAN5G(60, 0), CHAN5G(62, 0), - CHAN5G(64, 0), CHAN5G(66, 0), - CHAN5G(68, 0), CHAN5G(70, 0), - CHAN5G(72, 0), CHAN5G(74, 0), - CHAN5G(76, 0), CHAN5G(78, 0), - CHAN5G(80, 0), CHAN5G(82, 0), - CHAN5G(84, 0), CHAN5G(86, 0), - CHAN5G(88, 0), CHAN5G(90, 0), - CHAN5G(92, 0), CHAN5G(94, 0), - CHAN5G(96, 0), CHAN5G(98, 0), - CHAN5G(100, 0), CHAN5G(102, 0), - CHAN5G(104, 0), CHAN5G(106, 0), - CHAN5G(108, 0), CHAN5G(110, 0), - CHAN5G(112, 0), CHAN5G(114, 0), - CHAN5G(116, 0), CHAN5G(118, 0), - CHAN5G(120, 0), CHAN5G(122, 0), - CHAN5G(124, 0), CHAN5G(126, 0), - CHAN5G(128, 0), CHAN5G(130, 0), - CHAN5G(132, 0), CHAN5G(134, 0), - CHAN5G(136, 0), CHAN5G(138, 0), - CHAN5G(140, 0), CHAN5G(142, 0), - CHAN5G(144, 0), CHAN5G(145, 0), - CHAN5G(146, 0), CHAN5G(147, 0), - CHAN5G(148, 0), CHAN5G(149, 0), - CHAN5G(150, 0), CHAN5G(151, 0), - CHAN5G(152, 0), CHAN5G(153, 0), - CHAN5G(154, 0), CHAN5G(155, 0), - CHAN5G(156, 0), CHAN5G(157, 0), - CHAN5G(158, 0), CHAN5G(159, 0), - CHAN5G(160, 0), CHAN5G(161, 0), - CHAN5G(162, 0), CHAN5G(163, 0), - CHAN5G(164, 0), CHAN5G(165, 0), - CHAN5G(166, 0), CHAN5G(168, 0), - CHAN5G(170, 0), CHAN5G(172, 0), - CHAN5G(174, 0), CHAN5G(176, 0), - CHAN5G(178, 0), CHAN5G(180, 0), - CHAN5G(182, 0), -}; - -static struct ieee80211_channel b43_5ghz_nphy_chantable_limited[] = { - CHAN5G(36, 0), CHAN5G(40, 0), - CHAN5G(44, 0), CHAN5G(48, 0), - CHAN5G(149, 0), CHAN5G(153, 0), - CHAN5G(157, 0), CHAN5G(161, 0), - CHAN5G(165, 0), -}; - -static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { - CHAN5G(34, 0), CHAN5G(36, 0), - CHAN5G(38, 0), CHAN5G(40, 0), - CHAN5G(42, 0), CHAN5G(44, 0), - CHAN5G(46, 0), CHAN5G(48, 0), - CHAN5G(52, 0), CHAN5G(56, 0), - CHAN5G(60, 0), CHAN5G(64, 0), - CHAN5G(100, 0), CHAN5G(104, 0), - CHAN5G(108, 0), CHAN5G(112, 0), - CHAN5G(116, 0), CHAN5G(120, 0), - CHAN5G(124, 0), CHAN5G(128, 0), - CHAN5G(132, 0), CHAN5G(136, 0), - CHAN5G(140, 0), CHAN5G(149, 0), - CHAN5G(153, 0), CHAN5G(157, 0), - CHAN5G(161, 0), CHAN5G(165, 0), - CHAN5G(184, 0), CHAN5G(188, 0), - CHAN5G(192, 0), CHAN5G(196, 0), - CHAN5G(200, 0), CHAN5G(204, 0), - CHAN5G(208, 0), CHAN5G(212, 0), - CHAN5G(216, 0), -}; -#undef CHAN4G -#undef CHAN5G - -static struct ieee80211_supported_band b43_band_5GHz_nphy = { - .band = IEEE80211_BAND_5GHZ, - .channels = b43_5ghz_nphy_chantable, - .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), - .bitrates = b43_a_ratetable, - .n_bitrates = b43_a_ratetable_size, -}; - -static struct ieee80211_supported_band b43_band_5GHz_nphy_limited = { - .band = IEEE80211_BAND_5GHZ, - .channels = b43_5ghz_nphy_chantable_limited, - .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable_limited), - .bitrates = b43_a_ratetable, - .n_bitrates = b43_a_ratetable_size, -}; - -static struct ieee80211_supported_band b43_band_5GHz_aphy = { - .band = IEEE80211_BAND_5GHZ, - .channels = b43_5ghz_aphy_chantable, - .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), - .bitrates = b43_a_ratetable, - .n_bitrates = b43_a_ratetable_size, -}; - -static struct ieee80211_supported_band b43_band_2GHz = { - .band = IEEE80211_BAND_2GHZ, - .channels = b43_2ghz_chantable, - .n_channels = ARRAY_SIZE(b43_2ghz_chantable), - .bitrates = b43_g_ratetable, - .n_bitrates = b43_g_ratetable_size, -}; - -static struct ieee80211_supported_band b43_band_2ghz_limited = { - .band = IEEE80211_BAND_2GHZ, - .channels = b43_2ghz_chantable, - .n_channels = b43_2ghz_chantable_limited_size, - .bitrates = b43_g_ratetable, - .n_bitrates = b43_g_ratetable_size, -}; - -static void b43_wireless_core_exit(struct b43_wldev *dev); -static int b43_wireless_core_init(struct b43_wldev *dev); -static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev); -static int b43_wireless_core_start(struct b43_wldev *dev); -static void b43_op_bss_info_changed(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *conf, - u32 changed); - -static int b43_ratelimit(struct b43_wl *wl) -{ - if (!wl || !wl->current_dev) - return 1; - if (b43_status(wl->current_dev) < B43_STAT_STARTED) - return 1; - /* We are up and running. - * Ratelimit the messages to avoid DoS over the net. */ - return net_ratelimit(); -} - -void b43info(struct b43_wl *wl, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - if (b43_modparam_verbose < B43_VERBOSITY_INFO) - return; - if (!b43_ratelimit(wl)) - return; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - printk(KERN_INFO "b43-%s: %pV", - (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); - - va_end(args); -} - -void b43err(struct b43_wl *wl, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - if (b43_modparam_verbose < B43_VERBOSITY_ERROR) - return; - if (!b43_ratelimit(wl)) - return; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - printk(KERN_ERR "b43-%s ERROR: %pV", - (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); - - va_end(args); -} - -void b43warn(struct b43_wl *wl, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - if (b43_modparam_verbose < B43_VERBOSITY_WARN) - return; - if (!b43_ratelimit(wl)) - return; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - printk(KERN_WARNING "b43-%s warning: %pV", - (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); - - va_end(args); -} - -void b43dbg(struct b43_wl *wl, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; - - if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) - return; - - va_start(args, fmt); - - vaf.fmt = fmt; - vaf.va = &args; - - printk(KERN_DEBUG "b43-%s debug: %pV", - (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); - - va_end(args); -} - -static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) -{ - u32 macctl; - - B43_WARN_ON(offset % 4 != 0); - - macctl = b43_read32(dev, B43_MMIO_MACCTL); - if (macctl & B43_MACCTL_BE) - val = swab32(val); - - b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); - mmiowb(); - b43_write32(dev, B43_MMIO_RAM_DATA, val); -} - -static inline void b43_shm_control_word(struct b43_wldev *dev, - u16 routing, u16 offset) -{ - u32 control; - - /* "offset" is the WORD offset. */ - control = routing; - control <<= 16; - control |= offset; - b43_write32(dev, B43_MMIO_SHM_CONTROL, control); -} - -u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) -{ - u32 ret; - - if (routing == B43_SHM_SHARED) { - B43_WARN_ON(offset & 0x0001); - if (offset & 0x0003) { - /* Unaligned access */ - b43_shm_control_word(dev, routing, offset >> 2); - ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); - b43_shm_control_word(dev, routing, (offset >> 2) + 1); - ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16; - - goto out; - } - offset >>= 2; - } - b43_shm_control_word(dev, routing, offset); - ret = b43_read32(dev, B43_MMIO_SHM_DATA); -out: - return ret; -} - -u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) -{ - u16 ret; - - if (routing == B43_SHM_SHARED) { - B43_WARN_ON(offset & 0x0001); - if (offset & 0x0003) { - /* Unaligned access */ - b43_shm_control_word(dev, routing, offset >> 2); - ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); - - goto out; - } - offset >>= 2; - } - b43_shm_control_word(dev, routing, offset); - ret = b43_read16(dev, B43_MMIO_SHM_DATA); -out: - return ret; -} - -void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) -{ - if (routing == B43_SHM_SHARED) { - B43_WARN_ON(offset & 0x0001); - if (offset & 0x0003) { - /* Unaligned access */ - b43_shm_control_word(dev, routing, offset >> 2); - b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, - value & 0xFFFF); - b43_shm_control_word(dev, routing, (offset >> 2) + 1); - b43_write16(dev, B43_MMIO_SHM_DATA, - (value >> 16) & 0xFFFF); - return; - } - offset >>= 2; - } - b43_shm_control_word(dev, routing, offset); - b43_write32(dev, B43_MMIO_SHM_DATA, value); -} - -void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) -{ - if (routing == B43_SHM_SHARED) { - B43_WARN_ON(offset & 0x0001); - if (offset & 0x0003) { - /* Unaligned access */ - b43_shm_control_word(dev, routing, offset >> 2); - b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); - return; - } - offset >>= 2; - } - b43_shm_control_word(dev, routing, offset); - b43_write16(dev, B43_MMIO_SHM_DATA, value); -} - -/* Read HostFlags */ -u64 b43_hf_read(struct b43_wldev *dev) -{ - u64 ret; - - ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF3); - ret <<= 16; - ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF2); - ret <<= 16; - ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1); - - return ret; -} - -/* Write HostFlags */ -void b43_hf_write(struct b43_wldev *dev, u64 value) -{ - u16 lo, mi, hi; - - lo = (value & 0x00000000FFFFULL); - mi = (value & 0x0000FFFF0000ULL) >> 16; - hi = (value & 0xFFFF00000000ULL) >> 32; - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF1, lo); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF2, mi); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTF3, hi); -} - -/* Read the firmware capabilities bitmask (Opensource firmware only) */ -static u16 b43_fwcapa_read(struct b43_wldev *dev) -{ - B43_WARN_ON(!dev->fw.opensource); - return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); -} - -void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) -{ - u32 low, high; - - B43_WARN_ON(dev->dev->core_rev < 3); - - /* The hardware guarantees us an atomic read, if we - * read the low register first. */ - low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); - high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); - - *tsf = high; - *tsf <<= 32; - *tsf |= low; -} - -static void b43_time_lock(struct b43_wldev *dev) -{ - b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_TBTTHOLD); - /* Commit the write */ - b43_read32(dev, B43_MMIO_MACCTL); -} - -static void b43_time_unlock(struct b43_wldev *dev) -{ - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_TBTTHOLD, 0); - /* Commit the write */ - b43_read32(dev, B43_MMIO_MACCTL); -} - -static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) -{ - u32 low, high; - - B43_WARN_ON(dev->dev->core_rev < 3); - - low = tsf; - high = (tsf >> 32); - /* The hardware guarantees us an atomic write, if we - * write the low register first. */ - b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); - mmiowb(); - b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); - mmiowb(); -} - -void b43_tsf_write(struct b43_wldev *dev, u64 tsf) -{ - b43_time_lock(dev); - b43_tsf_write_locked(dev, tsf); - b43_time_unlock(dev); -} - -static -void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac) -{ - static const u8 zero_addr[ETH_ALEN] = { 0 }; - u16 data; - - if (!mac) - mac = zero_addr; - - offset |= 0x0020; - b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); - - data = mac[0]; - data |= mac[1] << 8; - b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); - data = mac[2]; - data |= mac[3] << 8; - b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); - data = mac[4]; - data |= mac[5] << 8; - b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); -} - -static void b43_write_mac_bssid_templates(struct b43_wldev *dev) -{ - const u8 *mac; - const u8 *bssid; - u8 mac_bssid[ETH_ALEN * 2]; - int i; - u32 tmp; - - bssid = dev->wl->bssid; - mac = dev->wl->mac_addr; - - b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); - - memcpy(mac_bssid, mac, ETH_ALEN); - memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); - - /* Write our MAC address and BSSID to template ram */ - for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { - tmp = (u32) (mac_bssid[i + 0]); - tmp |= (u32) (mac_bssid[i + 1]) << 8; - tmp |= (u32) (mac_bssid[i + 2]) << 16; - tmp |= (u32) (mac_bssid[i + 3]) << 24; - b43_ram_write(dev, 0x20 + i, tmp); - } -} - -static void b43_upload_card_macaddress(struct b43_wldev *dev) -{ - b43_write_mac_bssid_templates(dev); - b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); -} - -static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) -{ - /* slot_time is in usec. */ - /* This test used to exit for all but a G PHY. */ - if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) - return; - b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time); - /* Shared memory location 0x0010 is the slot time and should be - * set to slot_time; however, this register is initially 0 and changing - * the value adversely affects the transmit rate for BCM4311 - * devices. Until this behavior is unterstood, delete this step - * - * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); - */ -} - -static void b43_short_slot_timing_enable(struct b43_wldev *dev) -{ - b43_set_slot_time(dev, 9); -} - -static void b43_short_slot_timing_disable(struct b43_wldev *dev) -{ - b43_set_slot_time(dev, 20); -} - -/* DummyTransmission function, as documented on - * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission - */ -void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on) -{ - struct b43_phy *phy = &dev->phy; - unsigned int i, max_loop; - u16 value; - u32 buffer[5] = { - 0x00000000, - 0x00D40000, - 0x00000000, - 0x01000000, - 0x00000000, - }; - - if (ofdm) { - max_loop = 0x1E; - buffer[0] = 0x000201CC; - } else { - max_loop = 0xFA; - buffer[0] = 0x000B846E; - } - - for (i = 0; i < 5; i++) - b43_ram_write(dev, i * 4, buffer[i]); - - b43_write16(dev, B43_MMIO_XMTSEL, 0x0000); - - if (dev->dev->core_rev < 11) - b43_write16(dev, B43_MMIO_WEPCTL, 0x0000); - else - b43_write16(dev, B43_MMIO_WEPCTL, 0x0100); - - value = (ofdm ? 0x41 : 0x40); - b43_write16(dev, B43_MMIO_TXE0_PHYCTL, value); - if (phy->type == B43_PHYTYPE_N || phy->type == B43_PHYTYPE_LP || - phy->type == B43_PHYTYPE_LCN) - b43_write16(dev, B43_MMIO_TXE0_PHYCTL1, 0x1A02); - - b43_write16(dev, B43_MMIO_TXE0_WM_0, 0x0000); - b43_write16(dev, B43_MMIO_TXE0_WM_1, 0x0000); - - b43_write16(dev, B43_MMIO_XMTTPLATETXPTR, 0x0000); - b43_write16(dev, B43_MMIO_XMTTXCNT, 0x0014); - b43_write16(dev, B43_MMIO_XMTSEL, 0x0826); - b43_write16(dev, B43_MMIO_TXE0_CTL, 0x0000); - - if (!pa_on && phy->type == B43_PHYTYPE_N) - ; /*b43_nphy_pa_override(dev, false) */ - - switch (phy->type) { - case B43_PHYTYPE_N: - case B43_PHYTYPE_LCN: - b43_write16(dev, B43_MMIO_TXE0_AUX, 0x00D0); - break; - case B43_PHYTYPE_LP: - b43_write16(dev, B43_MMIO_TXE0_AUX, 0x0050); - break; - default: - b43_write16(dev, B43_MMIO_TXE0_AUX, 0x0030); - } - b43_read16(dev, B43_MMIO_TXE0_AUX); - - if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) - b43_radio_write16(dev, 0x0051, 0x0017); - for (i = 0x00; i < max_loop; i++) { - value = b43_read16(dev, B43_MMIO_TXE0_STATUS); - if (value & 0x0080) - break; - udelay(10); - } - for (i = 0x00; i < 0x0A; i++) { - value = b43_read16(dev, B43_MMIO_TXE0_STATUS); - if (value & 0x0400) - break; - udelay(10); - } - for (i = 0x00; i < 0x19; i++) { - value = b43_read16(dev, B43_MMIO_IFSSTAT); - if (!(value & 0x0100)) - break; - udelay(10); - } - if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) - b43_radio_write16(dev, 0x0051, 0x0037); -} - -static void key_write(struct b43_wldev *dev, - u8 index, u8 algorithm, const u8 *key) -{ - unsigned int i; - u32 offset; - u16 value; - u16 kidx; - - /* Key index/algo block */ - kidx = b43_kidx_to_fw(dev, index); - value = ((kidx << 4) | algorithm); - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); - - /* Write the key to the Key Table Pointer offset */ - offset = dev->ktp + (index * B43_SEC_KEYSIZE); - for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { - value = key[i]; - value |= (u16) (key[i + 1]) << 8; - b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); - } -} - -static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr) -{ - u32 addrtmp[2] = { 0, 0, }; - u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; - - if (b43_new_kidx_api(dev)) - pairwise_keys_start = B43_NR_GROUP_KEYS; - - B43_WARN_ON(index < pairwise_keys_start); - /* We have four default TX keys and possibly four default RX keys. - * Physical mac 0 is mapped to physical key 4 or 8, depending - * on the firmware version. - * So we must adjust the index here. - */ - index -= pairwise_keys_start; - B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); - - if (addr) { - addrtmp[0] = addr[0]; - addrtmp[0] |= ((u32) (addr[1]) << 8); - addrtmp[0] |= ((u32) (addr[2]) << 16); - addrtmp[0] |= ((u32) (addr[3]) << 24); - addrtmp[1] = addr[4]; - addrtmp[1] |= ((u32) (addr[5]) << 8); - } - - /* Receive match transmitter address (RCMTA) mechanism */ - b43_shm_write32(dev, B43_SHM_RCMTA, - (index * 2) + 0, addrtmp[0]); - b43_shm_write16(dev, B43_SHM_RCMTA, - (index * 2) + 1, addrtmp[1]); -} - -/* The ucode will use phase1 key with TEK key to decrypt rx packets. - * When a packet is received, the iv32 is checked. - * - if it doesn't the packet is returned without modification (and software - * decryption can be done). That's what happen when iv16 wrap. - * - if it does, the rc4 key is computed, and decryption is tried. - * Either it will success and B43_RX_MAC_DEC is returned, - * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned - * and the packet is not usable (it got modified by the ucode). - * So in order to never have B43_RX_MAC_DECERR, we should provide - * a iv32 and phase1key that match. Because we drop packets in case of - * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all - * packets will be lost without higher layer knowing (ie no resync possible - * until next wrap). - * - * NOTE : this should support 50 key like RCMTA because - * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50 - */ -static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32, - u16 *phase1key) -{ - unsigned int i; - u32 offset; - u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; - - if (!modparam_hwtkip) - return; - - if (b43_new_kidx_api(dev)) - pairwise_keys_start = B43_NR_GROUP_KEYS; - - B43_WARN_ON(index < pairwise_keys_start); - /* We have four default TX keys and possibly four default RX keys. - * Physical mac 0 is mapped to physical key 4 or 8, depending - * on the firmware version. - * So we must adjust the index here. - */ - index -= pairwise_keys_start; - B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); - - if (b43_debug(dev, B43_DBG_KEYS)) { - b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n", - index, iv32); - } - /* Write the key to the RX tkip shared mem */ - offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4); - for (i = 0; i < 10; i += 2) { - b43_shm_write16(dev, B43_SHM_SHARED, offset + i, - phase1key ? phase1key[i / 2] : 0); - } - b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32); - b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16); -} - -static void b43_op_update_tkip_key(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_key_conf *keyconf, - struct ieee80211_sta *sta, - u32 iv32, u16 *phase1key) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - int index = keyconf->hw_key_idx; - - if (B43_WARN_ON(!modparam_hwtkip)) - return; - - /* This is only called from the RX path through mac80211, where - * our mutex is already locked. */ - B43_WARN_ON(!mutex_is_locked(&wl->mutex)); - dev = wl->current_dev; - B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED); - - keymac_write(dev, index, NULL); /* First zero out mac to avoid race */ - - rx_tkip_phase1_write(dev, index, iv32, phase1key); - /* only pairwise TKIP keys are supported right now */ - if (WARN_ON(!sta)) - return; - keymac_write(dev, index, sta->addr); -} - -static void do_key_write(struct b43_wldev *dev, - u8 index, u8 algorithm, - const u8 *key, size_t key_len, const u8 *mac_addr) -{ - u8 buf[B43_SEC_KEYSIZE] = { 0, }; - u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; - - if (b43_new_kidx_api(dev)) - pairwise_keys_start = B43_NR_GROUP_KEYS; - - B43_WARN_ON(index >= ARRAY_SIZE(dev->key)); - B43_WARN_ON(key_len > B43_SEC_KEYSIZE); - - if (index >= pairwise_keys_start) - keymac_write(dev, index, NULL); /* First zero out mac. */ - if (algorithm == B43_SEC_ALGO_TKIP) { - /* - * We should provide an initial iv32, phase1key pair. - * We could start with iv32=0 and compute the corresponding - * phase1key, but this means calling ieee80211_get_tkip_key - * with a fake skb (or export other tkip function). - * Because we are lazy we hope iv32 won't start with - * 0xffffffff and let's b43_op_update_tkip_key provide a - * correct pair. - */ - rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf); - } else if (index >= pairwise_keys_start) /* clear it */ - rx_tkip_phase1_write(dev, index, 0, NULL); - if (key) - memcpy(buf, key, key_len); - key_write(dev, index, algorithm, buf); - if (index >= pairwise_keys_start) - keymac_write(dev, index, mac_addr); - - dev->key[index].algorithm = algorithm; -} - -static int b43_key_write(struct b43_wldev *dev, - int index, u8 algorithm, - const u8 *key, size_t key_len, - const u8 *mac_addr, - struct ieee80211_key_conf *keyconf) -{ - int i; - int pairwise_keys_start; - - /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block: - * - Temporal Encryption Key (128 bits) - * - Temporal Authenticator Tx MIC Key (64 bits) - * - Temporal Authenticator Rx MIC Key (64 bits) - * - * Hardware only store TEK - */ - if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32) - key_len = 16; - if (key_len > B43_SEC_KEYSIZE) - return -EINVAL; - for (i = 0; i < ARRAY_SIZE(dev->key); i++) { - /* Check that we don't already have this key. */ - B43_WARN_ON(dev->key[i].keyconf == keyconf); - } - if (index < 0) { - /* Pairwise key. Get an empty slot for the key. */ - if (b43_new_kidx_api(dev)) - pairwise_keys_start = B43_NR_GROUP_KEYS; - else - pairwise_keys_start = B43_NR_GROUP_KEYS * 2; - for (i = pairwise_keys_start; - i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS; - i++) { - B43_WARN_ON(i >= ARRAY_SIZE(dev->key)); - if (!dev->key[i].keyconf) { - /* found empty */ - index = i; - break; - } - } - if (index < 0) { - b43warn(dev->wl, "Out of hardware key memory\n"); - return -ENOSPC; - } - } else - B43_WARN_ON(index > 3); - - do_key_write(dev, index, algorithm, key, key_len, mac_addr); - if ((index <= 3) && !b43_new_kidx_api(dev)) { - /* Default RX key */ - B43_WARN_ON(mac_addr); - do_key_write(dev, index + 4, algorithm, key, key_len, NULL); - } - keyconf->hw_key_idx = index; - dev->key[index].keyconf = keyconf; - - return 0; -} - -static int b43_key_clear(struct b43_wldev *dev, int index) -{ - if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key)))) - return -EINVAL; - do_key_write(dev, index, B43_SEC_ALGO_NONE, - NULL, B43_SEC_KEYSIZE, NULL); - if ((index <= 3) && !b43_new_kidx_api(dev)) { - do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, - NULL, B43_SEC_KEYSIZE, NULL); - } - dev->key[index].keyconf = NULL; - - return 0; -} - -static void b43_clear_keys(struct b43_wldev *dev) -{ - int i, count; - - if (b43_new_kidx_api(dev)) - count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; - else - count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; - for (i = 0; i < count; i++) - b43_key_clear(dev, i); -} - -static void b43_dump_keymemory(struct b43_wldev *dev) -{ - unsigned int i, index, count, offset, pairwise_keys_start; - u8 mac[ETH_ALEN]; - u16 algo; - u32 rcmta0; - u16 rcmta1; - u64 hf; - struct b43_key *key; - - if (!b43_debug(dev, B43_DBG_KEYS)) - return; - - hf = b43_hf_read(dev); - b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", - !!(hf & B43_HF_USEDEFKEYS)); - if (b43_new_kidx_api(dev)) { - pairwise_keys_start = B43_NR_GROUP_KEYS; - count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; - } else { - pairwise_keys_start = B43_NR_GROUP_KEYS * 2; - count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; - } - for (index = 0; index < count; index++) { - key = &(dev->key[index]); - printk(KERN_DEBUG "Key slot %02u: %s", - index, (key->keyconf == NULL) ? " " : "*"); - offset = dev->ktp + (index * B43_SEC_KEYSIZE); - for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { - u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); - printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); - } - - algo = b43_shm_read16(dev, B43_SHM_SHARED, - B43_SHM_SH_KEYIDXBLOCK + (index * 2)); - printk(" Algo: %04X/%02X", algo, key->algorithm); - - if (index >= pairwise_keys_start) { - if (key->algorithm == B43_SEC_ALGO_TKIP) { - printk(" TKIP: "); - offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4); - for (i = 0; i < 14; i += 2) { - u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); - printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); - } - } - rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, - ((index - pairwise_keys_start) * 2) + 0); - rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, - ((index - pairwise_keys_start) * 2) + 1); - *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); - *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); - printk(" MAC: %pM", mac); - } else - printk(" DEFAULT KEY"); - printk("\n"); - } -} - -void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) -{ - u32 macctl; - u16 ucstat; - bool hwps; - bool awake; - int i; - - B43_WARN_ON((ps_flags & B43_PS_ENABLED) && - (ps_flags & B43_PS_DISABLED)); - B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); - - if (ps_flags & B43_PS_ENABLED) { - hwps = true; - } else if (ps_flags & B43_PS_DISABLED) { - hwps = false; - } else { - //TODO: If powersave is not off and FIXME is not set and we are not in adhoc - // and thus is not an AP and we are associated, set bit 25 - } - if (ps_flags & B43_PS_AWAKE) { - awake = true; - } else if (ps_flags & B43_PS_ASLEEP) { - awake = false; - } else { - //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, - // or we are associated, or FIXME, or the latest PS-Poll packet sent was - // successful, set bit26 - } - -/* FIXME: For now we force awake-on and hwps-off */ - hwps = false; - awake = true; - - macctl = b43_read32(dev, B43_MMIO_MACCTL); - if (hwps) - macctl |= B43_MACCTL_HWPS; - else - macctl &= ~B43_MACCTL_HWPS; - if (awake) - macctl |= B43_MACCTL_AWAKE; - else - macctl &= ~B43_MACCTL_AWAKE; - b43_write32(dev, B43_MMIO_MACCTL, macctl); - /* Commit write */ - b43_read32(dev, B43_MMIO_MACCTL); - if (awake && dev->dev->core_rev >= 5) { - /* Wait for the microcode to wake up. */ - for (i = 0; i < 100; i++) { - ucstat = b43_shm_read16(dev, B43_SHM_SHARED, - B43_SHM_SH_UCODESTAT); - if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) - break; - udelay(10); - } - } -} - -/* http://bcm-v4.sipsolutions.net/802.11/PHY/BmacCorePllReset */ -void b43_wireless_core_phy_pll_reset(struct b43_wldev *dev) -{ - struct bcma_drv_cc *bcma_cc __maybe_unused; - struct ssb_chipcommon *ssb_cc __maybe_unused; - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - bcma_cc = &dev->dev->bdev->bus->drv_cc; - - bcma_cc_write32(bcma_cc, BCMA_CC_CHIPCTL_ADDR, 0); - bcma_cc_mask32(bcma_cc, BCMA_CC_CHIPCTL_DATA, ~0x4); - bcma_cc_set32(bcma_cc, BCMA_CC_CHIPCTL_DATA, 0x4); - bcma_cc_mask32(bcma_cc, BCMA_CC_CHIPCTL_DATA, ~0x4); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - ssb_cc = &dev->dev->sdev->bus->chipco; - - chipco_write32(ssb_cc, SSB_CHIPCO_CHIPCTL_ADDR, 0); - chipco_mask32(ssb_cc, SSB_CHIPCO_CHIPCTL_DATA, ~0x4); - chipco_set32(ssb_cc, SSB_CHIPCO_CHIPCTL_DATA, 0x4); - chipco_mask32(ssb_cc, SSB_CHIPCO_CHIPCTL_DATA, ~0x4); - break; -#endif - } -} - -#ifdef CONFIG_B43_BCMA -static void b43_bcma_phy_reset(struct b43_wldev *dev) -{ - u32 flags; - - /* Put PHY into reset */ - flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - flags |= B43_BCMA_IOCTL_PHY_RESET; - flags |= B43_BCMA_IOCTL_PHY_BW_20MHZ; /* Make 20 MHz def */ - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags); - udelay(2); - - b43_phy_take_out_of_reset(dev); -} - -static void b43_bcma_wireless_core_reset(struct b43_wldev *dev, bool gmode) -{ - u32 req = B43_BCMA_CLKCTLST_80211_PLL_REQ | - B43_BCMA_CLKCTLST_PHY_PLL_REQ; - u32 status = B43_BCMA_CLKCTLST_80211_PLL_ST | - B43_BCMA_CLKCTLST_PHY_PLL_ST; - u32 flags; - - flags = B43_BCMA_IOCTL_PHY_CLKEN; - if (gmode) - flags |= B43_BCMA_IOCTL_GMODE; - b43_device_enable(dev, flags); - - if (dev->phy.type == B43_PHYTYPE_AC) { - u16 tmp; - - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - tmp &= ~B43_BCMA_IOCTL_DAC; - tmp |= 0x100; - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); - - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - tmp &= ~B43_BCMA_IOCTL_PHY_CLKEN; - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); - - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - tmp |= B43_BCMA_IOCTL_PHY_CLKEN; - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); - } - - bcma_core_set_clockmode(dev->dev->bdev, BCMA_CLKMODE_FAST); - b43_bcma_phy_reset(dev); - bcma_core_pll_ctl(dev->dev->bdev, req, status, true); -} -#endif - -#ifdef CONFIG_B43_SSB -static void b43_ssb_wireless_core_reset(struct b43_wldev *dev, bool gmode) -{ - u32 flags = 0; - - if (gmode) - flags |= B43_TMSLOW_GMODE; - flags |= B43_TMSLOW_PHYCLKEN; - flags |= B43_TMSLOW_PHYRESET; - if (dev->phy.type == B43_PHYTYPE_N) - flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */ - b43_device_enable(dev, flags); - msleep(2); /* Wait for the PLL to turn on. */ - - b43_phy_take_out_of_reset(dev); -} -#endif - -void b43_wireless_core_reset(struct b43_wldev *dev, bool gmode) -{ - u32 macctl; - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - b43_bcma_wireless_core_reset(dev, gmode); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - b43_ssb_wireless_core_reset(dev, gmode); - break; -#endif - } - - /* Turn Analog ON, but only if we already know the PHY-type. - * This protects against very early setup where we don't know the - * PHY-type, yet. wireless_core_reset will be called once again later, - * when we know the PHY-type. */ - if (dev->phy.ops) - dev->phy.ops->switch_analog(dev, 1); - - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl &= ~B43_MACCTL_GMODE; - if (gmode) - macctl |= B43_MACCTL_GMODE; - macctl |= B43_MACCTL_IHR_ENABLED; - b43_write32(dev, B43_MMIO_MACCTL, macctl); -} - -static void handle_irq_transmit_status(struct b43_wldev *dev) -{ - u32 v0, v1; - u16 tmp; - struct b43_txstatus stat; - - while (1) { - v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); - if (!(v0 & 0x00000001)) - break; - v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); - - stat.cookie = (v0 >> 16); - stat.seq = (v1 & 0x0000FFFF); - stat.phy_stat = ((v1 & 0x00FF0000) >> 16); - tmp = (v0 & 0x0000FFFF); - stat.frame_count = ((tmp & 0xF000) >> 12); - stat.rts_count = ((tmp & 0x0F00) >> 8); - stat.supp_reason = ((tmp & 0x001C) >> 2); - stat.pm_indicated = !!(tmp & 0x0080); - stat.intermediate = !!(tmp & 0x0040); - stat.for_ampdu = !!(tmp & 0x0020); - stat.acked = !!(tmp & 0x0002); - - b43_handle_txstatus(dev, &stat); - } -} - -static void drain_txstatus_queue(struct b43_wldev *dev) -{ - u32 dummy; - - if (dev->dev->core_rev < 5) - return; - /* Read all entries from the microcode TXstatus FIFO - * and throw them away. - */ - while (1) { - dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); - if (!(dummy & 0x00000001)) - break; - dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); - } -} - -static u32 b43_jssi_read(struct b43_wldev *dev) -{ - u32 val = 0; - - val = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_JSSI1); - val <<= 16; - val |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_JSSI0); - - return val; -} - -static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) -{ - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_JSSI0, - (jssi & 0x0000FFFF)); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_JSSI1, - (jssi & 0xFFFF0000) >> 16); -} - -static void b43_generate_noise_sample(struct b43_wldev *dev) -{ - b43_jssi_write(dev, 0x7F7F7F7F); - b43_write32(dev, B43_MMIO_MACCMD, - b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); -} - -static void b43_calculate_link_quality(struct b43_wldev *dev) -{ - /* Top half of Link Quality calculation. */ - - if (dev->phy.type != B43_PHYTYPE_G) - return; - if (dev->noisecalc.calculation_running) - return; - dev->noisecalc.calculation_running = true; - dev->noisecalc.nr_samples = 0; - - b43_generate_noise_sample(dev); -} - -static void handle_irq_noise(struct b43_wldev *dev) -{ - struct b43_phy_g *phy = dev->phy.g; - u16 tmp; - u8 noise[4]; - u8 i, j; - s32 average; - - /* Bottom half of Link Quality calculation. */ - - if (dev->phy.type != B43_PHYTYPE_G) - return; - - /* Possible race condition: It might be possible that the user - * changed to a different channel in the meantime since we - * started the calculation. We ignore that fact, since it's - * not really that much of a problem. The background noise is - * an estimation only anyway. Slightly wrong results will get damped - * by the averaging of the 8 sample rounds. Additionally the - * value is shortlived. So it will be replaced by the next noise - * calculation round soon. */ - - B43_WARN_ON(!dev->noisecalc.calculation_running); - *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); - if (noise[0] == 0x7F || noise[1] == 0x7F || - noise[2] == 0x7F || noise[3] == 0x7F) - goto generate_new; - - /* Get the noise samples. */ - B43_WARN_ON(dev->noisecalc.nr_samples >= 8); - i = dev->noisecalc.nr_samples; - noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); - noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); - noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); - noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); - dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; - dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; - dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; - dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; - dev->noisecalc.nr_samples++; - if (dev->noisecalc.nr_samples == 8) { - /* Calculate the Link Quality by the noise samples. */ - average = 0; - for (i = 0; i < 8; i++) { - for (j = 0; j < 4; j++) - average += dev->noisecalc.samples[i][j]; - } - average /= (8 * 4); - average *= 125; - average += 64; - average /= 128; - tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); - tmp = (tmp / 128) & 0x1F; - if (tmp >= 8) - average += 2; - else - average -= 25; - if (tmp == 8) - average -= 72; - else - average -= 48; - - dev->stats.link_noise = average; - dev->noisecalc.calculation_running = false; - return; - } -generate_new: - b43_generate_noise_sample(dev); -} - -static void handle_irq_tbtt_indication(struct b43_wldev *dev) -{ - if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { - ///TODO: PS TBTT - } else { - if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) - b43_power_saving_ctl_bits(dev, 0); - } - if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) - dev->dfq_valid = true; -} - -static void handle_irq_atim_end(struct b43_wldev *dev) -{ - if (dev->dfq_valid) { - b43_write32(dev, B43_MMIO_MACCMD, - b43_read32(dev, B43_MMIO_MACCMD) - | B43_MACCMD_DFQ_VALID); - dev->dfq_valid = false; - } -} - -static void handle_irq_pmq(struct b43_wldev *dev) -{ - u32 tmp; - - //TODO: AP mode. - - while (1) { - tmp = b43_read32(dev, B43_MMIO_PS_STATUS); - if (!(tmp & 0x00000008)) - break; - } - /* 16bit write is odd, but correct. */ - b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); -} - -static void b43_write_template_common(struct b43_wldev *dev, - const u8 *data, u16 size, - u16 ram_offset, - u16 shm_size_offset, u8 rate) -{ - u32 i, tmp; - struct b43_plcp_hdr4 plcp; - - plcp.data = 0; - b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); - b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); - ram_offset += sizeof(u32); - /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. - * So leave the first two bytes of the next write blank. - */ - tmp = (u32) (data[0]) << 16; - tmp |= (u32) (data[1]) << 24; - b43_ram_write(dev, ram_offset, tmp); - ram_offset += sizeof(u32); - for (i = 2; i < size; i += sizeof(u32)) { - tmp = (u32) (data[i + 0]); - if (i + 1 < size) - tmp |= (u32) (data[i + 1]) << 8; - if (i + 2 < size) - tmp |= (u32) (data[i + 2]) << 16; - if (i + 3 < size) - tmp |= (u32) (data[i + 3]) << 24; - b43_ram_write(dev, ram_offset + i - 2, tmp); - } - b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, - size + sizeof(struct b43_plcp_hdr6)); -} - -/* Check if the use of the antenna that ieee80211 told us to - * use is possible. This will fall back to DEFAULT. - * "antenna_nr" is the antenna identifier we got from ieee80211. */ -u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, - u8 antenna_nr) -{ - u8 antenna_mask; - - if (antenna_nr == 0) { - /* Zero means "use default antenna". That's always OK. */ - return 0; - } - - /* Get the mask of available antennas. */ - if (dev->phy.gmode) - antenna_mask = dev->dev->bus_sprom->ant_available_bg; - else - antenna_mask = dev->dev->bus_sprom->ant_available_a; - - if (!(antenna_mask & (1 << (antenna_nr - 1)))) { - /* This antenna is not available. Fall back to default. */ - return 0; - } - - return antenna_nr; -} - -/* Convert a b43 antenna number value to the PHY TX control value. */ -static u16 b43_antenna_to_phyctl(int antenna) -{ - switch (antenna) { - case B43_ANTENNA0: - return B43_TXH_PHY_ANT0; - case B43_ANTENNA1: - return B43_TXH_PHY_ANT1; - case B43_ANTENNA2: - return B43_TXH_PHY_ANT2; - case B43_ANTENNA3: - return B43_TXH_PHY_ANT3; - case B43_ANTENNA_AUTO0: - case B43_ANTENNA_AUTO1: - return B43_TXH_PHY_ANT01AUTO; - } - B43_WARN_ON(1); - return 0; -} - -static void b43_write_beacon_template(struct b43_wldev *dev, - u16 ram_offset, - u16 shm_size_offset) -{ - unsigned int i, len, variable_len; - const struct ieee80211_mgmt *bcn; - const u8 *ie; - bool tim_found = false; - unsigned int rate; - u16 ctl; - int antenna; - struct ieee80211_tx_info *info; - unsigned long flags; - struct sk_buff *beacon_skb; - - spin_lock_irqsave(&dev->wl->beacon_lock, flags); - info = IEEE80211_SKB_CB(dev->wl->current_beacon); - rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; - /* Clone the beacon, so it cannot go away, while we write it to hw. */ - beacon_skb = skb_clone(dev->wl->current_beacon, GFP_ATOMIC); - spin_unlock_irqrestore(&dev->wl->beacon_lock, flags); - - if (!beacon_skb) { - b43dbg(dev->wl, "Could not upload beacon. " - "Failed to clone beacon skb."); - return; - } - - bcn = (const struct ieee80211_mgmt *)(beacon_skb->data); - len = min_t(size_t, beacon_skb->len, - 0x200 - sizeof(struct b43_plcp_hdr6)); - - b43_write_template_common(dev, (const u8 *)bcn, - len, ram_offset, shm_size_offset, rate); - - /* Write the PHY TX control parameters. */ - antenna = B43_ANTENNA_DEFAULT; - antenna = b43_antenna_to_phyctl(antenna); - ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); - /* We can't send beacons with short preamble. Would get PHY errors. */ - ctl &= ~B43_TXH_PHY_SHORTPRMBL; - ctl &= ~B43_TXH_PHY_ANT; - ctl &= ~B43_TXH_PHY_ENC; - ctl |= antenna; - if (b43_is_cck_rate(rate)) - ctl |= B43_TXH_PHY_ENC_CCK; - else - ctl |= B43_TXH_PHY_ENC_OFDM; - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); - - /* Find the position of the TIM and the DTIM_period value - * and write them to SHM. */ - ie = bcn->u.beacon.variable; - variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); - for (i = 0; i < variable_len - 2; ) { - uint8_t ie_id, ie_len; - - ie_id = ie[i]; - ie_len = ie[i + 1]; - if (ie_id == 5) { - u16 tim_position; - u16 dtim_period; - /* This is the TIM Information Element */ - - /* Check whether the ie_len is in the beacon data range. */ - if (variable_len < ie_len + 2 + i) - break; - /* A valid TIM is at least 4 bytes long. */ - if (ie_len < 4) - break; - tim_found = true; - - tim_position = sizeof(struct b43_plcp_hdr6); - tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); - tim_position += i; - - dtim_period = ie[i + 3]; - - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_TIMBPOS, tim_position); - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_DTIMPER, dtim_period); - break; - } - i += ie_len + 2; - } - if (!tim_found) { - /* - * If ucode wants to modify TIM do it behind the beacon, this - * will happen, for example, when doing mesh networking. - */ - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_TIMBPOS, - len + sizeof(struct b43_plcp_hdr6)); - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_DTIMPER, 0); - } - b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); - - dev_kfree_skb_any(beacon_skb); -} - -static void b43_upload_beacon0(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - - if (wl->beacon0_uploaded) - return; - b43_write_beacon_template(dev, B43_SHM_SH_BT_BASE0, B43_SHM_SH_BTL0); - wl->beacon0_uploaded = true; -} - -static void b43_upload_beacon1(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - - if (wl->beacon1_uploaded) - return; - b43_write_beacon_template(dev, B43_SHM_SH_BT_BASE1, B43_SHM_SH_BTL1); - wl->beacon1_uploaded = true; -} - -static void handle_irq_beacon(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - u32 cmd, beacon0_valid, beacon1_valid; - - if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && - !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) && - !b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) - return; - - /* This is the bottom half of the asynchronous beacon update. */ - - /* Ignore interrupt in the future. */ - dev->irq_mask &= ~B43_IRQ_BEACON; - - cmd = b43_read32(dev, B43_MMIO_MACCMD); - beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); - beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); - - /* Schedule interrupt manually, if busy. */ - if (beacon0_valid && beacon1_valid) { - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); - dev->irq_mask |= B43_IRQ_BEACON; - return; - } - - if (unlikely(wl->beacon_templates_virgin)) { - /* We never uploaded a beacon before. - * Upload both templates now, but only mark one valid. */ - wl->beacon_templates_virgin = false; - b43_upload_beacon0(dev); - b43_upload_beacon1(dev); - cmd = b43_read32(dev, B43_MMIO_MACCMD); - cmd |= B43_MACCMD_BEACON0_VALID; - b43_write32(dev, B43_MMIO_MACCMD, cmd); - } else { - if (!beacon0_valid) { - b43_upload_beacon0(dev); - cmd = b43_read32(dev, B43_MMIO_MACCMD); - cmd |= B43_MACCMD_BEACON0_VALID; - b43_write32(dev, B43_MMIO_MACCMD, cmd); - } else if (!beacon1_valid) { - b43_upload_beacon1(dev); - cmd = b43_read32(dev, B43_MMIO_MACCMD); - cmd |= B43_MACCMD_BEACON1_VALID; - b43_write32(dev, B43_MMIO_MACCMD, cmd); - } - } -} - -static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev) -{ - u32 old_irq_mask = dev->irq_mask; - - /* update beacon right away or defer to irq */ - handle_irq_beacon(dev); - if (old_irq_mask != dev->irq_mask) { - /* The handler updated the IRQ mask. */ - B43_WARN_ON(!dev->irq_mask); - if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) { - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); - } else { - /* Device interrupts are currently disabled. That means - * we just ran the hardirq handler and scheduled the - * IRQ thread. The thread will write the IRQ mask when - * it finished, so there's nothing to do here. Writing - * the mask _here_ would incorrectly re-enable IRQs. */ - } - } -} - -static void b43_beacon_update_trigger_work(struct work_struct *work) -{ - struct b43_wl *wl = container_of(work, struct b43_wl, - beacon_update_trigger); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { - if (b43_bus_host_is_sdio(dev->dev)) { - /* wl->mutex is enough. */ - b43_do_beacon_update_trigger_work(dev); - mmiowb(); - } else { - spin_lock_irq(&wl->hardirq_lock); - b43_do_beacon_update_trigger_work(dev); - mmiowb(); - spin_unlock_irq(&wl->hardirq_lock); - } - } - mutex_unlock(&wl->mutex); -} - -/* Asynchronously update the packet templates in template RAM. */ -static void b43_update_templates(struct b43_wl *wl) -{ - struct sk_buff *beacon, *old_beacon; - unsigned long flags; - - /* This is the top half of the asynchronous beacon update. - * The bottom half is the beacon IRQ. - * Beacon update must be asynchronous to avoid sending an - * invalid beacon. This can happen for example, if the firmware - * transmits a beacon while we are updating it. */ - - /* We could modify the existing beacon and set the aid bit in - * the TIM field, but that would probably require resizing and - * moving of data within the beacon template. - * Simply request a new beacon and let mac80211 do the hard work. */ - beacon = ieee80211_beacon_get(wl->hw, wl->vif); - if (unlikely(!beacon)) - return; - - spin_lock_irqsave(&wl->beacon_lock, flags); - old_beacon = wl->current_beacon; - wl->current_beacon = beacon; - wl->beacon0_uploaded = false; - wl->beacon1_uploaded = false; - spin_unlock_irqrestore(&wl->beacon_lock, flags); - - ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger); - - if (old_beacon) - dev_kfree_skb_any(old_beacon); -} - -static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) -{ - b43_time_lock(dev); - if (dev->dev->core_rev >= 3) { - b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); - b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); - } else { - b43_write16(dev, 0x606, (beacon_int >> 6)); - b43_write16(dev, 0x610, beacon_int); - } - b43_time_unlock(dev); - b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); -} - -static void b43_handle_firmware_panic(struct b43_wldev *dev) -{ - u16 reason; - - /* Read the register that contains the reason code for the panic. */ - reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); - b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); - - switch (reason) { - default: - b43dbg(dev->wl, "The panic reason is unknown.\n"); - /* fallthrough */ - case B43_FWPANIC_DIE: - /* Do not restart the controller or firmware. - * The device is nonfunctional from now on. - * Restarting would result in this panic to trigger again, - * so we avoid that recursion. */ - break; - case B43_FWPANIC_RESTART: - b43_controller_restart(dev, "Microcode panic"); - break; - } -} - -static void handle_irq_ucode_debug(struct b43_wldev *dev) -{ - unsigned int i, cnt; - u16 reason, marker_id, marker_line; - __le16 *buf; - - /* The proprietary firmware doesn't have this IRQ. */ - if (!dev->fw.opensource) - return; - - /* Read the register that contains the reason code for this IRQ. */ - reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); - - switch (reason) { - case B43_DEBUGIRQ_PANIC: - b43_handle_firmware_panic(dev); - break; - case B43_DEBUGIRQ_DUMP_SHM: - if (!B43_DEBUG) - break; /* Only with driver debugging enabled. */ - buf = kmalloc(4096, GFP_ATOMIC); - if (!buf) { - b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); - goto out; - } - for (i = 0; i < 4096; i += 2) { - u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); - buf[i / 2] = cpu_to_le16(tmp); - } - b43info(dev->wl, "Shared memory dump:\n"); - print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, - 16, 2, buf, 4096, 1); - kfree(buf); - break; - case B43_DEBUGIRQ_DUMP_REGS: - if (!B43_DEBUG) - break; /* Only with driver debugging enabled. */ - b43info(dev->wl, "Microcode register dump:\n"); - for (i = 0, cnt = 0; i < 64; i++) { - u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); - if (cnt == 0) - printk(KERN_INFO); - printk("r%02u: 0x%04X ", i, tmp); - cnt++; - if (cnt == 6) { - printk("\n"); - cnt = 0; - } - } - printk("\n"); - break; - case B43_DEBUGIRQ_MARKER: - if (!B43_DEBUG) - break; /* Only with driver debugging enabled. */ - marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, - B43_MARKER_ID_REG); - marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, - B43_MARKER_LINE_REG); - b43info(dev->wl, "The firmware just executed the MARKER(%u) " - "at line number %u\n", - marker_id, marker_line); - break; - default: - b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", - reason); - } -out: - /* Acknowledge the debug-IRQ, so the firmware can continue. */ - b43_shm_write16(dev, B43_SHM_SCRATCH, - B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); -} - -static void b43_do_interrupt_thread(struct b43_wldev *dev) -{ - u32 reason; - u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; - u32 merged_dma_reason = 0; - int i; - - if (unlikely(b43_status(dev) != B43_STAT_STARTED)) - return; - - reason = dev->irq_reason; - for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { - dma_reason[i] = dev->dma_reason[i]; - merged_dma_reason |= dma_reason[i]; - } - - if (unlikely(reason & B43_IRQ_MAC_TXERR)) - b43err(dev->wl, "MAC transmission error\n"); - - if (unlikely(reason & B43_IRQ_PHY_TXERR)) { - b43err(dev->wl, "PHY transmission error\n"); - rmb(); - if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { - atomic_set(&dev->phy.txerr_cnt, - B43_PHY_TX_BADNESS_LIMIT); - b43err(dev->wl, "Too many PHY TX errors, " - "restarting the controller\n"); - b43_controller_restart(dev, "PHY TX errors"); - } - } - - if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK))) { - b43err(dev->wl, - "Fatal DMA error: 0x%08X, 0x%08X, 0x%08X, 0x%08X, 0x%08X, 0x%08X\n", - dma_reason[0], dma_reason[1], - dma_reason[2], dma_reason[3], - dma_reason[4], dma_reason[5]); - b43err(dev->wl, "This device does not support DMA " - "on your system. It will now be switched to PIO.\n"); - /* Fall back to PIO transfers if we get fatal DMA errors! */ - dev->use_pio = true; - b43_controller_restart(dev, "DMA error"); - return; - } - - if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) - handle_irq_ucode_debug(dev); - if (reason & B43_IRQ_TBTT_INDI) - handle_irq_tbtt_indication(dev); - if (reason & B43_IRQ_ATIM_END) - handle_irq_atim_end(dev); - if (reason & B43_IRQ_BEACON) - handle_irq_beacon(dev); - if (reason & B43_IRQ_PMQ) - handle_irq_pmq(dev); - if (reason & B43_IRQ_TXFIFO_FLUSH_OK) - ;/* TODO */ - if (reason & B43_IRQ_NOISESAMPLE_OK) - handle_irq_noise(dev); - - /* Check the DMA reason registers for received data. */ - if (dma_reason[0] & B43_DMAIRQ_RDESC_UFLOW) { - if (B43_DEBUG) - b43warn(dev->wl, "RX descriptor underrun\n"); - b43_dma_handle_rx_overflow(dev->dma.rx_ring); - } - if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { - if (b43_using_pio_transfers(dev)) - b43_pio_rx(dev->pio.rx_queue); - else - b43_dma_rx(dev->dma.rx_ring); - } - B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); - B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); - B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); - B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); - B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); - - if (reason & B43_IRQ_TX_OK) - handle_irq_transmit_status(dev); - - /* Re-enable interrupts on the device by restoring the current interrupt mask. */ - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); - -#if B43_DEBUG - if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { - dev->irq_count++; - for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { - if (reason & (1 << i)) - dev->irq_bit_count[i]++; - } - } -#endif -} - -/* Interrupt thread handler. Handles device interrupts in thread context. */ -static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id) -{ - struct b43_wldev *dev = dev_id; - - mutex_lock(&dev->wl->mutex); - b43_do_interrupt_thread(dev); - mmiowb(); - mutex_unlock(&dev->wl->mutex); - - return IRQ_HANDLED; -} - -static irqreturn_t b43_do_interrupt(struct b43_wldev *dev) -{ - u32 reason; - - /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses. - * On SDIO, this runs under wl->mutex. */ - - reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); - if (reason == 0xffffffff) /* shared IRQ */ - return IRQ_NONE; - reason &= dev->irq_mask; - if (!reason) - return IRQ_NONE; - - dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) - & 0x0001FC00; - dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) - & 0x0000DC00; - dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) - & 0x0000DC00; - dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) - & 0x0001DC00; - dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) - & 0x0000DC00; -/* Unused ring - dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) - & 0x0000DC00; -*/ - - /* ACK the interrupt. */ - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); - b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); - b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); - b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); - b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); - b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); -/* Unused ring - b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); -*/ - - /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */ - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); - /* Save the reason bitmasks for the IRQ thread handler. */ - dev->irq_reason = reason; - - return IRQ_WAKE_THREAD; -} - -/* Interrupt handler top-half. This runs with interrupts disabled. */ -static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) -{ - struct b43_wldev *dev = dev_id; - irqreturn_t ret; - - if (unlikely(b43_status(dev) < B43_STAT_STARTED)) - return IRQ_NONE; - - spin_lock(&dev->wl->hardirq_lock); - ret = b43_do_interrupt(dev); - mmiowb(); - spin_unlock(&dev->wl->hardirq_lock); - - return ret; -} - -/* SDIO interrupt handler. This runs in process context. */ -static void b43_sdio_interrupt_handler(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - irqreturn_t ret; - - mutex_lock(&wl->mutex); - - ret = b43_do_interrupt(dev); - if (ret == IRQ_WAKE_THREAD) - b43_do_interrupt_thread(dev); - - mutex_unlock(&wl->mutex); -} - -void b43_do_release_fw(struct b43_firmware_file *fw) -{ - release_firmware(fw->data); - fw->data = NULL; - fw->filename = NULL; -} - -static void b43_release_firmware(struct b43_wldev *dev) -{ - complete(&dev->fw_load_complete); - b43_do_release_fw(&dev->fw.ucode); - b43_do_release_fw(&dev->fw.pcm); - b43_do_release_fw(&dev->fw.initvals); - b43_do_release_fw(&dev->fw.initvals_band); -} - -static void b43_print_fw_helptext(struct b43_wl *wl, bool error) -{ - const char text[] = - "You must go to " \ - "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \ - "and download the correct firmware for this driver version. " \ - "Please carefully read all instructions on this website.\n"; - - if (error) - b43err(wl, text); - else - b43warn(wl, text); -} - -static void b43_fw_cb(const struct firmware *firmware, void *context) -{ - struct b43_request_fw_context *ctx = context; - - ctx->blob = firmware; - complete(&ctx->dev->fw_load_complete); -} - -int b43_do_request_fw(struct b43_request_fw_context *ctx, - const char *name, - struct b43_firmware_file *fw, bool async) -{ - struct b43_fw_header *hdr; - u32 size; - int err; - - if (!name) { - /* Don't fetch anything. Free possibly cached firmware. */ - /* FIXME: We should probably keep it anyway, to save some headache - * on suspend/resume with multiband devices. */ - b43_do_release_fw(fw); - return 0; - } - if (fw->filename) { - if ((fw->type == ctx->req_type) && - (strcmp(fw->filename, name) == 0)) - return 0; /* Already have this fw. */ - /* Free the cached firmware first. */ - /* FIXME: We should probably do this later after we successfully - * got the new fw. This could reduce headache with multiband devices. - * We could also redesign this to cache the firmware for all possible - * bands all the time. */ - b43_do_release_fw(fw); - } - - switch (ctx->req_type) { - case B43_FWTYPE_PROPRIETARY: - snprintf(ctx->fwname, sizeof(ctx->fwname), - "b43%s/%s.fw", - modparam_fwpostfix, name); - break; - case B43_FWTYPE_OPENSOURCE: - snprintf(ctx->fwname, sizeof(ctx->fwname), - "b43-open%s/%s.fw", - modparam_fwpostfix, name); - break; - default: - B43_WARN_ON(1); - return -ENOSYS; - } - if (async) { - /* do this part asynchronously */ - init_completion(&ctx->dev->fw_load_complete); - err = request_firmware_nowait(THIS_MODULE, 1, ctx->fwname, - ctx->dev->dev->dev, GFP_KERNEL, - ctx, b43_fw_cb); - if (err < 0) { - pr_err("Unable to load firmware\n"); - return err; - } - wait_for_completion(&ctx->dev->fw_load_complete); - if (ctx->blob) - goto fw_ready; - /* On some ARM systems, the async request will fail, but the next sync - * request works. For this reason, we fall through here - */ - } - err = request_firmware(&ctx->blob, ctx->fwname, - ctx->dev->dev->dev); - if (err == -ENOENT) { - snprintf(ctx->errors[ctx->req_type], - sizeof(ctx->errors[ctx->req_type]), - "Firmware file \"%s\" not found\n", - ctx->fwname); - return err; - } else if (err) { - snprintf(ctx->errors[ctx->req_type], - sizeof(ctx->errors[ctx->req_type]), - "Firmware file \"%s\" request failed (err=%d)\n", - ctx->fwname, err); - return err; - } -fw_ready: - if (ctx->blob->size < sizeof(struct b43_fw_header)) - goto err_format; - hdr = (struct b43_fw_header *)(ctx->blob->data); - switch (hdr->type) { - case B43_FW_TYPE_UCODE: - case B43_FW_TYPE_PCM: - size = be32_to_cpu(hdr->size); - if (size != ctx->blob->size - sizeof(struct b43_fw_header)) - goto err_format; - /* fallthrough */ - case B43_FW_TYPE_IV: - if (hdr->ver != 1) - goto err_format; - break; - default: - goto err_format; - } - - fw->data = ctx->blob; - fw->filename = name; - fw->type = ctx->req_type; - - return 0; - -err_format: - snprintf(ctx->errors[ctx->req_type], - sizeof(ctx->errors[ctx->req_type]), - "Firmware file \"%s\" format error.\n", ctx->fwname); - release_firmware(ctx->blob); - - return -EPROTO; -} - -/* http://bcm-v4.sipsolutions.net/802.11/Init/Firmware */ -static int b43_try_request_fw(struct b43_request_fw_context *ctx) -{ - struct b43_wldev *dev = ctx->dev; - struct b43_firmware *fw = &ctx->dev->fw; - struct b43_phy *phy = &dev->phy; - const u8 rev = ctx->dev->dev->core_rev; - const char *filename; - int err; - - /* Get microcode */ - filename = NULL; - switch (rev) { - case 42: - if (phy->type == B43_PHYTYPE_AC) - filename = "ucode42"; - break; - case 40: - if (phy->type == B43_PHYTYPE_AC) - filename = "ucode40"; - break; - case 33: - if (phy->type == B43_PHYTYPE_LCN40) - filename = "ucode33_lcn40"; - break; - case 30: - if (phy->type == B43_PHYTYPE_N) - filename = "ucode30_mimo"; - break; - case 29: - if (phy->type == B43_PHYTYPE_HT) - filename = "ucode29_mimo"; - break; - case 26: - if (phy->type == B43_PHYTYPE_HT) - filename = "ucode26_mimo"; - break; - case 28: - case 25: - if (phy->type == B43_PHYTYPE_N) - filename = "ucode25_mimo"; - else if (phy->type == B43_PHYTYPE_LCN) - filename = "ucode25_lcn"; - break; - case 24: - if (phy->type == B43_PHYTYPE_LCN) - filename = "ucode24_lcn"; - break; - case 23: - if (phy->type == B43_PHYTYPE_N) - filename = "ucode16_mimo"; - break; - case 16 ... 19: - if (phy->type == B43_PHYTYPE_N) - filename = "ucode16_mimo"; - else if (phy->type == B43_PHYTYPE_LP) - filename = "ucode16_lp"; - break; - case 15: - filename = "ucode15"; - break; - case 14: - filename = "ucode14"; - break; - case 13: - filename = "ucode13"; - break; - case 11 ... 12: - filename = "ucode11"; - break; - case 5 ... 10: - filename = "ucode5"; - break; - } - if (!filename) - goto err_no_ucode; - err = b43_do_request_fw(ctx, filename, &fw->ucode, true); - if (err) - goto err_load; - - /* Get PCM code */ - if ((rev >= 5) && (rev <= 10)) - filename = "pcm5"; - else if (rev >= 11) - filename = NULL; - else - goto err_no_pcm; - fw->pcm_request_failed = false; - err = b43_do_request_fw(ctx, filename, &fw->pcm, false); - if (err == -ENOENT) { - /* We did not find a PCM file? Not fatal, but - * core rev <= 10 must do without hwcrypto then. */ - fw->pcm_request_failed = true; - } else if (err) - goto err_load; - - /* Get initvals */ - filename = NULL; - switch (dev->phy.type) { - case B43_PHYTYPE_G: - if (rev == 13) - filename = "b0g0initvals13"; - else if (rev >= 5 && rev <= 10) - filename = "b0g0initvals5"; - break; - case B43_PHYTYPE_N: - if (rev == 30) - filename = "n16initvals30"; - else if (rev == 28 || rev == 25) - filename = "n0initvals25"; - else if (rev == 24) - filename = "n0initvals24"; - else if (rev == 23) - filename = "n0initvals16"; /* What about n0initvals22? */ - else if (rev >= 16 && rev <= 18) - filename = "n0initvals16"; - else if (rev >= 11 && rev <= 12) - filename = "n0initvals11"; - break; - case B43_PHYTYPE_LP: - if (rev >= 16 && rev <= 18) - filename = "lp0initvals16"; - else if (rev == 15) - filename = "lp0initvals15"; - else if (rev == 14) - filename = "lp0initvals14"; - else if (rev == 13) - filename = "lp0initvals13"; - break; - case B43_PHYTYPE_HT: - if (rev == 29) - filename = "ht0initvals29"; - else if (rev == 26) - filename = "ht0initvals26"; - break; - case B43_PHYTYPE_LCN: - if (rev == 24) - filename = "lcn0initvals24"; - break; - case B43_PHYTYPE_LCN40: - if (rev == 33) - filename = "lcn400initvals33"; - break; - case B43_PHYTYPE_AC: - if (rev == 42) - filename = "ac1initvals42"; - else if (rev == 40) - filename = "ac0initvals40"; - break; - } - if (!filename) - goto err_no_initvals; - err = b43_do_request_fw(ctx, filename, &fw->initvals, false); - if (err) - goto err_load; - - /* Get bandswitch initvals */ - filename = NULL; - switch (dev->phy.type) { - case B43_PHYTYPE_G: - if (rev == 13) - filename = "b0g0bsinitvals13"; - else if (rev >= 5 && rev <= 10) - filename = "b0g0bsinitvals5"; - break; - case B43_PHYTYPE_N: - if (rev == 30) - filename = "n16bsinitvals30"; - else if (rev == 28 || rev == 25) - filename = "n0bsinitvals25"; - else if (rev == 24) - filename = "n0bsinitvals24"; - else if (rev == 23) - filename = "n0bsinitvals16"; /* What about n0bsinitvals22? */ - else if (rev >= 16 && rev <= 18) - filename = "n0bsinitvals16"; - else if (rev >= 11 && rev <= 12) - filename = "n0bsinitvals11"; - break; - case B43_PHYTYPE_LP: - if (rev >= 16 && rev <= 18) - filename = "lp0bsinitvals16"; - else if (rev == 15) - filename = "lp0bsinitvals15"; - else if (rev == 14) - filename = "lp0bsinitvals14"; - else if (rev == 13) - filename = "lp0bsinitvals13"; - break; - case B43_PHYTYPE_HT: - if (rev == 29) - filename = "ht0bsinitvals29"; - else if (rev == 26) - filename = "ht0bsinitvals26"; - break; - case B43_PHYTYPE_LCN: - if (rev == 24) - filename = "lcn0bsinitvals24"; - break; - case B43_PHYTYPE_LCN40: - if (rev == 33) - filename = "lcn400bsinitvals33"; - break; - case B43_PHYTYPE_AC: - if (rev == 42) - filename = "ac1bsinitvals42"; - else if (rev == 40) - filename = "ac0bsinitvals40"; - break; - } - if (!filename) - goto err_no_initvals; - err = b43_do_request_fw(ctx, filename, &fw->initvals_band, false); - if (err) - goto err_load; - - fw->opensource = (ctx->req_type == B43_FWTYPE_OPENSOURCE); - - return 0; - -err_no_ucode: - err = ctx->fatal_failure = -EOPNOTSUPP; - b43err(dev->wl, "The driver does not know which firmware (ucode) " - "is required for your device (wl-core rev %u)\n", rev); - goto error; - -err_no_pcm: - err = ctx->fatal_failure = -EOPNOTSUPP; - b43err(dev->wl, "The driver does not know which firmware (PCM) " - "is required for your device (wl-core rev %u)\n", rev); - goto error; - -err_no_initvals: - err = ctx->fatal_failure = -EOPNOTSUPP; - b43err(dev->wl, "The driver does not know which firmware (initvals) " - "is required for your device (wl-core rev %u)\n", rev); - goto error; - -err_load: - /* We failed to load this firmware image. The error message - * already is in ctx->errors. Return and let our caller decide - * what to do. */ - goto error; - -error: - b43_release_firmware(dev); - return err; -} - -static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl); -static void b43_one_core_detach(struct b43_bus_dev *dev); -static int b43_rng_init(struct b43_wl *wl); - -static void b43_request_firmware(struct work_struct *work) -{ - struct b43_wl *wl = container_of(work, - struct b43_wl, firmware_load); - struct b43_wldev *dev = wl->current_dev; - struct b43_request_fw_context *ctx; - unsigned int i; - int err; - const char *errmsg; - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return; - ctx->dev = dev; - - ctx->req_type = B43_FWTYPE_PROPRIETARY; - err = b43_try_request_fw(ctx); - if (!err) - goto start_ieee80211; /* Successfully loaded it. */ - /* Was fw version known? */ - if (ctx->fatal_failure) - goto out; - - /* proprietary fw not found, try open source */ - ctx->req_type = B43_FWTYPE_OPENSOURCE; - err = b43_try_request_fw(ctx); - if (!err) - goto start_ieee80211; /* Successfully loaded it. */ - if(ctx->fatal_failure) - goto out; - - /* Could not find a usable firmware. Print the errors. */ - for (i = 0; i < B43_NR_FWTYPES; i++) { - errmsg = ctx->errors[i]; - if (strlen(errmsg)) - b43err(dev->wl, "%s", errmsg); - } - b43_print_fw_helptext(dev->wl, 1); - goto out; - -start_ieee80211: - wl->hw->queues = B43_QOS_QUEUE_NUM; - if (!modparam_qos || dev->fw.opensource) - wl->hw->queues = 1; - - err = ieee80211_register_hw(wl->hw); - if (err) - goto err_one_core_detach; - wl->hw_registred = true; - b43_leds_register(wl->current_dev); - - /* Register HW RNG driver */ - b43_rng_init(wl); - - goto out; - -err_one_core_detach: - b43_one_core_detach(dev->dev); - -out: - kfree(ctx); -} - -static int b43_upload_microcode(struct b43_wldev *dev) -{ - struct wiphy *wiphy = dev->wl->hw->wiphy; - const size_t hdr_len = sizeof(struct b43_fw_header); - const __be32 *data; - unsigned int i, len; - u16 fwrev, fwpatch, fwdate, fwtime; - u32 tmp, macctl; - int err = 0; - - /* Jump the microcode PSM to offset 0 */ - macctl = b43_read32(dev, B43_MMIO_MACCTL); - B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); - macctl |= B43_MACCTL_PSM_JMP0; - b43_write32(dev, B43_MMIO_MACCTL, macctl); - /* Zero out all microcode PSM registers and shared memory. */ - for (i = 0; i < 64; i++) - b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); - for (i = 0; i < 4096; i += 2) - b43_shm_write16(dev, B43_SHM_SHARED, i, 0); - - /* Upload Microcode. */ - data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); - len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); - b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); - for (i = 0; i < len; i++) { - b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); - udelay(10); - } - - if (dev->fw.pcm.data) { - /* Upload PCM data. */ - data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); - len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); - b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); - b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); - /* No need for autoinc bit in SHM_HW */ - b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); - for (i = 0; i < len; i++) { - b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); - udelay(10); - } - } - - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); - - /* Start the microcode PSM */ - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_JMP0, - B43_MACCTL_PSM_RUN); - - /* Wait for the microcode to load and respond */ - i = 0; - while (1) { - tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); - if (tmp == B43_IRQ_MAC_SUSPENDED) - break; - i++; - if (i >= 20) { - b43err(dev->wl, "Microcode not responding\n"); - b43_print_fw_helptext(dev->wl, 1); - err = -ENODEV; - goto error; - } - msleep(50); - } - b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ - - /* Get and check the revisions. */ - fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); - fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); - fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); - fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); - - if (fwrev <= 0x128) { - b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " - "binary drivers older than version 4.x is unsupported. " - "You must upgrade your firmware files.\n"); - b43_print_fw_helptext(dev->wl, 1); - err = -EOPNOTSUPP; - goto error; - } - dev->fw.rev = fwrev; - dev->fw.patch = fwpatch; - if (dev->fw.rev >= 598) - dev->fw.hdr_format = B43_FW_HDR_598; - else if (dev->fw.rev >= 410) - dev->fw.hdr_format = B43_FW_HDR_410; - else - dev->fw.hdr_format = B43_FW_HDR_351; - WARN_ON(dev->fw.opensource != (fwdate == 0xFFFF)); - - dev->qos_enabled = dev->wl->hw->queues > 1; - /* Default to firmware/hardware crypto acceleration. */ - dev->hwcrypto_enabled = true; - - if (dev->fw.opensource) { - u16 fwcapa; - - /* Patchlevel info is encoded in the "time" field. */ - dev->fw.patch = fwtime; - b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", - dev->fw.rev, dev->fw.patch); - - fwcapa = b43_fwcapa_read(dev); - if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { - b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); - /* Disable hardware crypto and fall back to software crypto. */ - dev->hwcrypto_enabled = false; - } - /* adding QoS support should use an offline discovery mechanism */ - WARN(fwcapa & B43_FWCAPA_QOS, "QoS in OpenFW not supported\n"); - } else { - b43info(dev->wl, "Loading firmware version %u.%u " - "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", - fwrev, fwpatch, - (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, - (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); - if (dev->fw.pcm_request_failed) { - b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " - "Hardware accelerated cryptography is disabled.\n"); - b43_print_fw_helptext(dev->wl, 0); - } - } - - snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u", - dev->fw.rev, dev->fw.patch); - wiphy->hw_version = dev->dev->core_id; - - if (dev->fw.hdr_format == B43_FW_HDR_351) { - /* We're over the deadline, but we keep support for old fw - * until it turns out to be in major conflict with something new. */ - b43warn(dev->wl, "You are using an old firmware image. " - "Support for old firmware will be removed soon " - "(official deadline was July 2008).\n"); - b43_print_fw_helptext(dev->wl, 0); - } - - return 0; - -error: - /* Stop the microcode PSM. */ - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN, - B43_MACCTL_PSM_JMP0); - - return err; -} - -static int b43_write_initvals(struct b43_wldev *dev, - const struct b43_iv *ivals, - size_t count, - size_t array_size) -{ - const struct b43_iv *iv; - u16 offset; - size_t i; - bool bit32; - - BUILD_BUG_ON(sizeof(struct b43_iv) != 6); - iv = ivals; - for (i = 0; i < count; i++) { - if (array_size < sizeof(iv->offset_size)) - goto err_format; - array_size -= sizeof(iv->offset_size); - offset = be16_to_cpu(iv->offset_size); - bit32 = !!(offset & B43_IV_32BIT); - offset &= B43_IV_OFFSET_MASK; - if (offset >= 0x1000) - goto err_format; - if (bit32) { - u32 value; - - if (array_size < sizeof(iv->data.d32)) - goto err_format; - array_size -= sizeof(iv->data.d32); - - value = get_unaligned_be32(&iv->data.d32); - b43_write32(dev, offset, value); - - iv = (const struct b43_iv *)((const uint8_t *)iv + - sizeof(__be16) + - sizeof(__be32)); - } else { - u16 value; - - if (array_size < sizeof(iv->data.d16)) - goto err_format; - array_size -= sizeof(iv->data.d16); - - value = be16_to_cpu(iv->data.d16); - b43_write16(dev, offset, value); - - iv = (const struct b43_iv *)((const uint8_t *)iv + - sizeof(__be16) + - sizeof(__be16)); - } - } - if (array_size) - goto err_format; - - return 0; - -err_format: - b43err(dev->wl, "Initial Values Firmware file-format error.\n"); - b43_print_fw_helptext(dev->wl, 1); - - return -EPROTO; -} - -static int b43_upload_initvals(struct b43_wldev *dev) -{ - const size_t hdr_len = sizeof(struct b43_fw_header); - const struct b43_fw_header *hdr; - struct b43_firmware *fw = &dev->fw; - const struct b43_iv *ivals; - size_t count; - - hdr = (const struct b43_fw_header *)(fw->initvals.data->data); - ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); - count = be32_to_cpu(hdr->size); - return b43_write_initvals(dev, ivals, count, - fw->initvals.data->size - hdr_len); -} - -static int b43_upload_initvals_band(struct b43_wldev *dev) -{ - const size_t hdr_len = sizeof(struct b43_fw_header); - const struct b43_fw_header *hdr; - struct b43_firmware *fw = &dev->fw; - const struct b43_iv *ivals; - size_t count; - - if (!fw->initvals_band.data) - return 0; - - hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); - ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); - count = be32_to_cpu(hdr->size); - return b43_write_initvals(dev, ivals, count, - fw->initvals_band.data->size - hdr_len); -} - -/* Initialize the GPIOs - * http://bcm-specs.sipsolutions.net/GPIO - */ - -#ifdef CONFIG_B43_SSB -static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev) -{ - struct ssb_bus *bus = dev->dev->sdev->bus; - -#ifdef CONFIG_SSB_DRIVER_PCICORE - return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev); -#else - return bus->chipco.dev; -#endif -} -#endif - -static int b43_gpio_init(struct b43_wldev *dev) -{ -#ifdef CONFIG_B43_SSB - struct ssb_device *gpiodev; -#endif - u32 mask, set; - - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_GPOUTSMSK, 0); - b43_maskset16(dev, B43_MMIO_GPIO_MASK, ~0, 0xF); - - mask = 0x0000001F; - set = 0x0000000F; - if (dev->dev->chip_id == 0x4301) { - mask |= 0x0060; - set |= 0x0060; - } else if (dev->dev->chip_id == 0x5354) { - /* Don't allow overtaking buttons GPIOs */ - set &= 0x2; /* 0x2 is LED GPIO on BCM5354 */ - } - - if (0 /* FIXME: conditional unknown */ ) { - b43_write16(dev, B43_MMIO_GPIO_MASK, - b43_read16(dev, B43_MMIO_GPIO_MASK) - | 0x0100); - /* BT Coexistance Input */ - mask |= 0x0080; - set |= 0x0080; - /* BT Coexistance Out */ - mask |= 0x0100; - set |= 0x0100; - } - if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) { - /* PA is controlled by gpio 9, let ucode handle it */ - b43_write16(dev, B43_MMIO_GPIO_MASK, - b43_read16(dev, B43_MMIO_GPIO_MASK) - | 0x0200); - mask |= 0x0200; - set |= 0x0200; - } - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - bcma_chipco_gpio_control(&dev->dev->bdev->bus->drv_cc, mask, set); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - gpiodev = b43_ssb_gpio_dev(dev); - if (gpiodev) - ssb_write32(gpiodev, B43_GPIO_CONTROL, - (ssb_read32(gpiodev, B43_GPIO_CONTROL) - & ~mask) | set); - break; -#endif - } - - return 0; -} - -/* Turn off all GPIO stuff. Call this on module unload, for example. */ -static void b43_gpio_cleanup(struct b43_wldev *dev) -{ -#ifdef CONFIG_B43_SSB - struct ssb_device *gpiodev; -#endif - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - bcma_chipco_gpio_control(&dev->dev->bdev->bus->drv_cc, ~0, 0); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - gpiodev = b43_ssb_gpio_dev(dev); - if (gpiodev) - ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); - break; -#endif - } -} - -/* http://bcm-specs.sipsolutions.net/EnableMac */ -void b43_mac_enable(struct b43_wldev *dev) -{ - if (b43_debug(dev, B43_DBG_FIRMWARE)) { - u16 fwstate; - - fwstate = b43_shm_read16(dev, B43_SHM_SHARED, - B43_SHM_SH_UCODESTAT); - if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && - (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { - b43err(dev->wl, "b43_mac_enable(): The firmware " - "should be suspended, but current state is %u\n", - fwstate); - } - } - - dev->mac_suspended--; - B43_WARN_ON(dev->mac_suspended < 0); - if (dev->mac_suspended == 0) { - b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_ENABLED); - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, - B43_IRQ_MAC_SUSPENDED); - /* Commit writes */ - b43_read32(dev, B43_MMIO_MACCTL); - b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); - b43_power_saving_ctl_bits(dev, 0); - } -} - -/* http://bcm-specs.sipsolutions.net/SuspendMAC */ -void b43_mac_suspend(struct b43_wldev *dev) -{ - int i; - u32 tmp; - - might_sleep(); - B43_WARN_ON(dev->mac_suspended < 0); - - if (dev->mac_suspended == 0) { - b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_ENABLED, 0); - /* force pci to flush the write */ - b43_read32(dev, B43_MMIO_MACCTL); - for (i = 35; i; i--) { - tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); - if (tmp & B43_IRQ_MAC_SUSPENDED) - goto out; - udelay(10); - } - /* Hm, it seems this will take some time. Use msleep(). */ - for (i = 40; i; i--) { - tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); - if (tmp & B43_IRQ_MAC_SUSPENDED) - goto out; - msleep(1); - } - b43err(dev->wl, "MAC suspend failed\n"); - } -out: - dev->mac_suspended++; -} - -/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */ -void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on) -{ - u32 tmp; - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - if (on) - tmp |= B43_BCMA_IOCTL_MACPHYCLKEN; - else - tmp &= ~B43_BCMA_IOCTL_MACPHYCLKEN; - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); - if (on) - tmp |= B43_TMSLOW_MACPHYCLKEN; - else - tmp &= ~B43_TMSLOW_MACPHYCLKEN; - ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); - break; -#endif - } -} - -/* brcms_b_switch_macfreq */ -void b43_mac_switch_freq(struct b43_wldev *dev, u8 spurmode) -{ - u16 chip_id = dev->dev->chip_id; - - if (chip_id == BCMA_CHIP_ID_BCM4331) { - switch (spurmode) { - case 2: /* 168 Mhz: 2^26/168 = 0x61862 */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x1862); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x6); - break; - case 1: /* 164 Mhz: 2^26/164 = 0x63e70 */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x3e70); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x6); - break; - default: /* 160 Mhz: 2^26/160 = 0x66666 */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x6666); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x6); - break; - } - } else if (chip_id == BCMA_CHIP_ID_BCM43131 || - chip_id == BCMA_CHIP_ID_BCM43217 || - chip_id == BCMA_CHIP_ID_BCM43222 || - chip_id == BCMA_CHIP_ID_BCM43224 || - chip_id == BCMA_CHIP_ID_BCM43225 || - chip_id == BCMA_CHIP_ID_BCM43227 || - chip_id == BCMA_CHIP_ID_BCM43228) { - switch (spurmode) { - case 2: /* 126 Mhz */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x2082); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); - break; - case 1: /* 123 Mhz */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x5341); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); - break; - default: /* 120 Mhz */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x8889); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8); - break; - } - } else if (dev->phy.type == B43_PHYTYPE_LCN) { - switch (spurmode) { - case 1: /* 82 Mhz */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x7CE0); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC); - break; - default: /* 80 Mhz */ - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0xCCCD); - b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC); - break; - } - } -} - -static void b43_adjust_opmode(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - u32 ctl; - u16 cfp_pretbtt; - - ctl = b43_read32(dev, B43_MMIO_MACCTL); - /* Reset status to STA infrastructure mode. */ - ctl &= ~B43_MACCTL_AP; - ctl &= ~B43_MACCTL_KEEP_CTL; - ctl &= ~B43_MACCTL_KEEP_BADPLCP; - ctl &= ~B43_MACCTL_KEEP_BAD; - ctl &= ~B43_MACCTL_PROMISC; - ctl &= ~B43_MACCTL_BEACPROMISC; - ctl |= B43_MACCTL_INFRA; - - if (b43_is_mode(wl, NL80211_IFTYPE_AP) || - b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) - ctl |= B43_MACCTL_AP; - else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) - ctl &= ~B43_MACCTL_INFRA; - - if (wl->filter_flags & FIF_CONTROL) - ctl |= B43_MACCTL_KEEP_CTL; - if (wl->filter_flags & FIF_FCSFAIL) - ctl |= B43_MACCTL_KEEP_BAD; - if (wl->filter_flags & FIF_PLCPFAIL) - ctl |= B43_MACCTL_KEEP_BADPLCP; - if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) - ctl |= B43_MACCTL_BEACPROMISC; - - /* Workaround: On old hardware the HW-MAC-address-filter - * doesn't work properly, so always run promisc in filter - * it in software. */ - if (dev->dev->core_rev <= 4) - ctl |= B43_MACCTL_PROMISC; - - b43_write32(dev, B43_MMIO_MACCTL, ctl); - - cfp_pretbtt = 2; - if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { - if (dev->dev->chip_id == 0x4306 && - dev->dev->chip_rev == 3) - cfp_pretbtt = 100; - else - cfp_pretbtt = 50; - } - b43_write16(dev, 0x612, cfp_pretbtt); - - /* FIXME: We don't currently implement the PMQ mechanism, - * so always disable it. If we want to implement PMQ, - * we need to enable it here (clear DISCPMQ) in AP mode. - */ - if (0 /* ctl & B43_MACCTL_AP */) - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_DISCPMQ, 0); - else - b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_DISCPMQ); -} - -static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) -{ - u16 offset; - - if (is_ofdm) { - offset = 0x480; - offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; - } else { - offset = 0x4C0; - offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; - } - b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, - b43_shm_read16(dev, B43_SHM_SHARED, offset)); -} - -static void b43_rate_memory_init(struct b43_wldev *dev) -{ - switch (dev->phy.type) { - case B43_PHYTYPE_A: - case B43_PHYTYPE_G: - case B43_PHYTYPE_N: - case B43_PHYTYPE_LP: - case B43_PHYTYPE_HT: - case B43_PHYTYPE_LCN: - b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_9MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); - b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); - if (dev->phy.type == B43_PHYTYPE_A) - break; - /* fallthrough */ - case B43_PHYTYPE_B: - b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); - b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); - b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); - b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); - break; - default: - B43_WARN_ON(1); - } -} - -/* Set the default values for the PHY TX Control Words. */ -static void b43_set_phytxctl_defaults(struct b43_wldev *dev) -{ - u16 ctl = 0; - - ctl |= B43_TXH_PHY_ENC_CCK; - ctl |= B43_TXH_PHY_ANT01AUTO; - ctl |= B43_TXH_PHY_TXPWR; - - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); -} - -/* Set the TX-Antenna for management frames sent by firmware. */ -static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) -{ - u16 ant; - u16 tmp; - - ant = b43_antenna_to_phyctl(antenna); - - /* For ACK/CTS */ - tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); - tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); - /* For Probe Resposes */ - tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); - tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); -} - -/* This is the opposite of b43_chip_init() */ -static void b43_chip_exit(struct b43_wldev *dev) -{ - b43_phy_exit(dev); - b43_gpio_cleanup(dev); - /* firmware is released later */ -} - -/* Initialize the chip - * http://bcm-specs.sipsolutions.net/ChipInit - */ -static int b43_chip_init(struct b43_wldev *dev) -{ - struct b43_phy *phy = &dev->phy; - int err; - u32 macctl; - u16 value16; - - /* Initialize the MAC control */ - macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; - if (dev->phy.gmode) - macctl |= B43_MACCTL_GMODE; - macctl |= B43_MACCTL_INFRA; - b43_write32(dev, B43_MMIO_MACCTL, macctl); - - err = b43_upload_microcode(dev); - if (err) - goto out; /* firmware is released later */ - - err = b43_gpio_init(dev); - if (err) - goto out; /* firmware is released later */ - - err = b43_upload_initvals(dev); - if (err) - goto err_gpio_clean; - - err = b43_upload_initvals_band(dev); - if (err) - goto err_gpio_clean; - - /* Turn the Analog on and initialize the PHY. */ - phy->ops->switch_analog(dev, 1); - err = b43_phy_init(dev); - if (err) - goto err_gpio_clean; - - /* Disable Interference Mitigation. */ - if (phy->ops->interf_mitigation) - phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); - - /* Select the antennae */ - if (phy->ops->set_rx_antenna) - phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); - b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); - - if (phy->type == B43_PHYTYPE_B) { - value16 = b43_read16(dev, 0x005E); - value16 |= 0x0004; - b43_write16(dev, 0x005E, value16); - } - b43_write32(dev, 0x0100, 0x01000000); - if (dev->dev->core_rev < 5) - b43_write32(dev, 0x010C, 0x01000000); - - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_INFRA, 0); - b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_INFRA); - - /* Probe Response Timeout value */ - /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 0); - - /* Initially set the wireless operation mode. */ - b43_adjust_opmode(dev); - - if (dev->dev->core_rev < 3) { - b43_write16(dev, 0x060E, 0x0000); - b43_write16(dev, 0x0610, 0x8000); - b43_write16(dev, 0x0604, 0x0000); - b43_write16(dev, 0x0606, 0x0200); - } else { - b43_write32(dev, 0x0188, 0x80000000); - b43_write32(dev, 0x018C, 0x02000000); - } - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); - b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001FC00); - b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); - b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); - b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); - b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); - b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); - - b43_mac_phy_clock_set(dev, true); - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - /* FIXME: 0xE74 is quite common, but should be read from CC */ - b43_write16(dev, B43_MMIO_POWERUP_DELAY, 0xE74); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - b43_write16(dev, B43_MMIO_POWERUP_DELAY, - dev->dev->sdev->bus->chipco.fast_pwrup_delay); - break; -#endif - } - - err = 0; - b43dbg(dev->wl, "Chip initialized\n"); -out: - return err; - -err_gpio_clean: - b43_gpio_cleanup(dev); - return err; -} - -static void b43_periodic_every60sec(struct b43_wldev *dev) -{ - const struct b43_phy_operations *ops = dev->phy.ops; - - if (ops->pwork_60sec) - ops->pwork_60sec(dev); - - /* Force check the TX power emission now. */ - b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); -} - -static void b43_periodic_every30sec(struct b43_wldev *dev) -{ - /* Update device statistics. */ - b43_calculate_link_quality(dev); -} - -static void b43_periodic_every15sec(struct b43_wldev *dev) -{ - struct b43_phy *phy = &dev->phy; - u16 wdr; - - if (dev->fw.opensource) { - /* Check if the firmware is still alive. - * It will reset the watchdog counter to 0 in its idle loop. */ - wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); - if (unlikely(wdr)) { - b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); - b43_controller_restart(dev, "Firmware watchdog"); - return; - } else { - b43_shm_write16(dev, B43_SHM_SCRATCH, - B43_WATCHDOG_REG, 1); - } - } - - if (phy->ops->pwork_15sec) - phy->ops->pwork_15sec(dev); - - atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); - wmb(); - -#if B43_DEBUG - if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { - unsigned int i; - - b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n", - dev->irq_count / 15, - dev->tx_count / 15, - dev->rx_count / 15); - dev->irq_count = 0; - dev->tx_count = 0; - dev->rx_count = 0; - for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { - if (dev->irq_bit_count[i]) { - b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n", - dev->irq_bit_count[i] / 15, i, (1 << i)); - dev->irq_bit_count[i] = 0; - } - } - } -#endif -} - -static void do_periodic_work(struct b43_wldev *dev) -{ - unsigned int state; - - state = dev->periodic_state; - if (state % 4 == 0) - b43_periodic_every60sec(dev); - if (state % 2 == 0) - b43_periodic_every30sec(dev); - b43_periodic_every15sec(dev); -} - -/* Periodic work locking policy: - * The whole periodic work handler is protected by - * wl->mutex. If another lock is needed somewhere in the - * pwork callchain, it's acquired in-place, where it's needed. - */ -static void b43_periodic_work_handler(struct work_struct *work) -{ - struct b43_wldev *dev = container_of(work, struct b43_wldev, - periodic_work.work); - struct b43_wl *wl = dev->wl; - unsigned long delay; - - mutex_lock(&wl->mutex); - - if (unlikely(b43_status(dev) != B43_STAT_STARTED)) - goto out; - if (b43_debug(dev, B43_DBG_PWORK_STOP)) - goto out_requeue; - - do_periodic_work(dev); - - dev->periodic_state++; -out_requeue: - if (b43_debug(dev, B43_DBG_PWORK_FAST)) - delay = msecs_to_jiffies(50); - else - delay = round_jiffies_relative(HZ * 15); - ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay); -out: - mutex_unlock(&wl->mutex); -} - -static void b43_periodic_tasks_setup(struct b43_wldev *dev) -{ - struct delayed_work *work = &dev->periodic_work; - - dev->periodic_state = 0; - INIT_DELAYED_WORK(work, b43_periodic_work_handler); - ieee80211_queue_delayed_work(dev->wl->hw, work, 0); -} - -/* Check if communication with the device works correctly. */ -static int b43_validate_chipaccess(struct b43_wldev *dev) -{ - u32 v, backup0, backup4; - - backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0); - backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4); - - /* Check for read/write and endianness problems. */ - b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); - if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) - goto error; - b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); - if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) - goto error; - - /* Check if unaligned 32bit SHM_SHARED access works properly. - * However, don't bail out on failure, because it's noncritical. */ - b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122); - b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344); - b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566); - b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788); - if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344) - b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n"); - b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD); - if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 || - b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD || - b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB || - b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788) - b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n"); - - b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0); - b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4); - - if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) { - /* The 32bit register shadows the two 16bit registers - * with update sideeffects. Validate this. */ - b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); - b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); - if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) - goto error; - if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) - goto error; - } - b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); - - v = b43_read32(dev, B43_MMIO_MACCTL); - v |= B43_MACCTL_GMODE; - if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) - goto error; - - return 0; -error: - b43err(dev->wl, "Failed to validate the chipaccess\n"); - return -ENODEV; -} - -static void b43_security_init(struct b43_wldev *dev) -{ - dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); - /* KTP is a word address, but we address SHM bytewise. - * So multiply by two. - */ - dev->ktp *= 2; - /* Number of RCMTA address slots */ - b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS); - /* Clear the key memory. */ - b43_clear_keys(dev); -} - -#ifdef CONFIG_B43_HWRNG -static int b43_rng_read(struct hwrng *rng, u32 *data) -{ - struct b43_wl *wl = (struct b43_wl *)rng->priv; - struct b43_wldev *dev; - int count = -ENODEV; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) { - *data = b43_read16(dev, B43_MMIO_RNG); - count = sizeof(u16); - } - mutex_unlock(&wl->mutex); - - return count; -} -#endif /* CONFIG_B43_HWRNG */ - -static void b43_rng_exit(struct b43_wl *wl) -{ -#ifdef CONFIG_B43_HWRNG - if (wl->rng_initialized) - hwrng_unregister(&wl->rng); -#endif /* CONFIG_B43_HWRNG */ -} - -static int b43_rng_init(struct b43_wl *wl) -{ - int err = 0; - -#ifdef CONFIG_B43_HWRNG - snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), - "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); - wl->rng.name = wl->rng_name; - wl->rng.data_read = b43_rng_read; - wl->rng.priv = (unsigned long)wl; - wl->rng_initialized = true; - err = hwrng_register(&wl->rng); - if (err) { - wl->rng_initialized = false; - b43err(wl, "Failed to register the random " - "number generator (%d)\n", err); - } -#endif /* CONFIG_B43_HWRNG */ - - return err; -} - -static void b43_tx_work(struct work_struct *work) -{ - struct b43_wl *wl = container_of(work, struct b43_wl, tx_work); - struct b43_wldev *dev; - struct sk_buff *skb; - int queue_num; - int err = 0; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) { - mutex_unlock(&wl->mutex); - return; - } - - for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) { - while (skb_queue_len(&wl->tx_queue[queue_num])) { - skb = skb_dequeue(&wl->tx_queue[queue_num]); - if (b43_using_pio_transfers(dev)) - err = b43_pio_tx(dev, skb); - else - err = b43_dma_tx(dev, skb); - if (err == -ENOSPC) { - wl->tx_queue_stopped[queue_num] = 1; - ieee80211_stop_queue(wl->hw, queue_num); - skb_queue_head(&wl->tx_queue[queue_num], skb); - break; - } - if (unlikely(err)) - ieee80211_free_txskb(wl->hw, skb); - err = 0; - } - - if (!err) - wl->tx_queue_stopped[queue_num] = 0; - } - -#if B43_DEBUG - dev->tx_count++; -#endif - mutex_unlock(&wl->mutex); -} - -static void b43_op_tx(struct ieee80211_hw *hw, - struct ieee80211_tx_control *control, - struct sk_buff *skb) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - - if (unlikely(skb->len < 2 + 2 + 6)) { - /* Too short, this can't be a valid frame. */ - ieee80211_free_txskb(hw, skb); - return; - } - B43_WARN_ON(skb_shinfo(skb)->nr_frags); - - skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb); - if (!wl->tx_queue_stopped[skb->queue_mapping]) { - ieee80211_queue_work(wl->hw, &wl->tx_work); - } else { - ieee80211_stop_queue(wl->hw, skb->queue_mapping); - } -} - -static void b43_qos_params_upload(struct b43_wldev *dev, - const struct ieee80211_tx_queue_params *p, - u16 shm_offset) -{ - u16 params[B43_NR_QOSPARAMS]; - int bslots, tmp; - unsigned int i; - - if (!dev->qos_enabled) - return; - - bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; - - memset(¶ms, 0, sizeof(params)); - - params[B43_QOSPARAM_TXOP] = p->txop * 32; - params[B43_QOSPARAM_CWMIN] = p->cw_min; - params[B43_QOSPARAM_CWMAX] = p->cw_max; - params[B43_QOSPARAM_CWCUR] = p->cw_min; - params[B43_QOSPARAM_AIFS] = p->aifs; - params[B43_QOSPARAM_BSLOTS] = bslots; - params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; - - for (i = 0; i < ARRAY_SIZE(params); i++) { - if (i == B43_QOSPARAM_STATUS) { - tmp = b43_shm_read16(dev, B43_SHM_SHARED, - shm_offset + (i * 2)); - /* Mark the parameters as updated. */ - tmp |= 0x100; - b43_shm_write16(dev, B43_SHM_SHARED, - shm_offset + (i * 2), - tmp); - } else { - b43_shm_write16(dev, B43_SHM_SHARED, - shm_offset + (i * 2), - params[i]); - } - } -} - -/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ -static const u16 b43_qos_shm_offsets[] = { - /* [mac80211-queue-nr] = SHM_OFFSET, */ - [0] = B43_QOS_VOICE, - [1] = B43_QOS_VIDEO, - [2] = B43_QOS_BESTEFFORT, - [3] = B43_QOS_BACKGROUND, -}; - -/* Update all QOS parameters in hardware. */ -static void b43_qos_upload_all(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - struct b43_qos_params *params; - unsigned int i; - - if (!dev->qos_enabled) - return; - - BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != - ARRAY_SIZE(wl->qos_params)); - - b43_mac_suspend(dev); - for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { - params = &(wl->qos_params[i]); - b43_qos_params_upload(dev, &(params->p), - b43_qos_shm_offsets[i]); - } - b43_mac_enable(dev); -} - -static void b43_qos_clear(struct b43_wl *wl) -{ - struct b43_qos_params *params; - unsigned int i; - - /* Initialize QoS parameters to sane defaults. */ - - BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != - ARRAY_SIZE(wl->qos_params)); - - for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { - params = &(wl->qos_params[i]); - - switch (b43_qos_shm_offsets[i]) { - case B43_QOS_VOICE: - params->p.txop = 0; - params->p.aifs = 2; - params->p.cw_min = 0x0001; - params->p.cw_max = 0x0001; - break; - case B43_QOS_VIDEO: - params->p.txop = 0; - params->p.aifs = 2; - params->p.cw_min = 0x0001; - params->p.cw_max = 0x0001; - break; - case B43_QOS_BESTEFFORT: - params->p.txop = 0; - params->p.aifs = 3; - params->p.cw_min = 0x0001; - params->p.cw_max = 0x03FF; - break; - case B43_QOS_BACKGROUND: - params->p.txop = 0; - params->p.aifs = 7; - params->p.cw_min = 0x0001; - params->p.cw_max = 0x03FF; - break; - default: - B43_WARN_ON(1); - } - } -} - -/* Initialize the core's QOS capabilities */ -static void b43_qos_init(struct b43_wldev *dev) -{ - if (!dev->qos_enabled) { - /* Disable QOS support. */ - b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF); - b43_write16(dev, B43_MMIO_IFSCTL, - b43_read16(dev, B43_MMIO_IFSCTL) - & ~B43_MMIO_IFSCTL_USE_EDCF); - b43dbg(dev->wl, "QoS disabled\n"); - return; - } - - /* Upload the current QOS parameters. */ - b43_qos_upload_all(dev); - - /* Enable QOS support. */ - b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); - b43_write16(dev, B43_MMIO_IFSCTL, - b43_read16(dev, B43_MMIO_IFSCTL) - | B43_MMIO_IFSCTL_USE_EDCF); - b43dbg(dev->wl, "QoS enabled\n"); -} - -static int b43_op_conf_tx(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, u16 _queue, - const struct ieee80211_tx_queue_params *params) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - unsigned int queue = (unsigned int)_queue; - int err = -ENODEV; - - if (queue >= ARRAY_SIZE(wl->qos_params)) { - /* Queue not available or don't support setting - * params on this queue. Return success to not - * confuse mac80211. */ - return 0; - } - BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != - ARRAY_SIZE(wl->qos_params)); - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) - goto out_unlock; - - memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); - b43_mac_suspend(dev); - b43_qos_params_upload(dev, &(wl->qos_params[queue].p), - b43_qos_shm_offsets[queue]); - b43_mac_enable(dev); - err = 0; - -out_unlock: - mutex_unlock(&wl->mutex); - - return err; -} - -static int b43_op_get_stats(struct ieee80211_hw *hw, - struct ieee80211_low_level_stats *stats) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - - mutex_lock(&wl->mutex); - memcpy(stats, &wl->ieee_stats, sizeof(*stats)); - mutex_unlock(&wl->mutex); - - return 0; -} - -static u64 b43_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - u64 tsf; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - - if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) - b43_tsf_read(dev, &tsf); - else - tsf = 0; - - mutex_unlock(&wl->mutex); - - return tsf; -} - -static void b43_op_set_tsf(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, u64 tsf) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - - if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) - b43_tsf_write(dev, tsf); - - mutex_unlock(&wl->mutex); -} - -static const char *band_to_string(enum ieee80211_band band) -{ - switch (band) { - case IEEE80211_BAND_5GHZ: - return "5"; - case IEEE80211_BAND_2GHZ: - return "2.4"; - default: - break; - } - B43_WARN_ON(1); - return ""; -} - -/* Expects wl->mutex locked */ -static int b43_switch_band(struct b43_wldev *dev, - struct ieee80211_channel *chan) -{ - struct b43_phy *phy = &dev->phy; - bool gmode; - u32 tmp; - - switch (chan->band) { - case IEEE80211_BAND_5GHZ: - gmode = false; - break; - case IEEE80211_BAND_2GHZ: - gmode = true; - break; - default: - B43_WARN_ON(1); - return -EINVAL; - } - - if (!((gmode && phy->supports_2ghz) || - (!gmode && phy->supports_5ghz))) { - b43err(dev->wl, "This device doesn't support %s-GHz band\n", - band_to_string(chan->band)); - return -ENODEV; - } - - if (!!phy->gmode == !!gmode) { - /* This device is already running. */ - return 0; - } - - b43dbg(dev->wl, "Switching to %s GHz band\n", - band_to_string(chan->band)); - - /* Some new devices don't need disabling radio for band switching */ - if (!(phy->type == B43_PHYTYPE_N && phy->rev >= 3)) - b43_software_rfkill(dev, true); - - phy->gmode = gmode; - b43_phy_put_into_reset(dev); - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL); - if (gmode) - tmp |= B43_BCMA_IOCTL_GMODE; - else - tmp &= ~B43_BCMA_IOCTL_GMODE; - bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW); - if (gmode) - tmp |= B43_TMSLOW_GMODE; - else - tmp &= ~B43_TMSLOW_GMODE; - ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp); - break; -#endif - } - b43_phy_take_out_of_reset(dev); - - b43_upload_initvals_band(dev); - - b43_phy_init(dev); - - return 0; -} - -static void b43_set_beacon_listen_interval(struct b43_wldev *dev, u16 interval) -{ - interval = min_t(u16, interval, (u16)0xFF); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BCN_LI, interval); -} - -/* Write the short and long frame retry limit values. */ -static void b43_set_retry_limits(struct b43_wldev *dev, - unsigned int short_retry, - unsigned int long_retry) -{ - /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing - * the chip-internal counter. */ - short_retry = min(short_retry, (unsigned int)0xF); - long_retry = min(long_retry, (unsigned int)0xF); - - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, - short_retry); - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, - long_retry); -} - -static int b43_op_config(struct ieee80211_hw *hw, u32 changed) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - struct b43_phy *phy = &dev->phy; - struct ieee80211_conf *conf = &hw->conf; - int antenna; - int err = 0; - - mutex_lock(&wl->mutex); - b43_mac_suspend(dev); - - if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) - b43_set_beacon_listen_interval(dev, conf->listen_interval); - - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { - phy->chandef = &conf->chandef; - phy->channel = conf->chandef.chan->hw_value; - - /* Switch the band (if necessary). */ - err = b43_switch_band(dev, conf->chandef.chan); - if (err) - goto out_mac_enable; - - /* Switch to the requested channel. - * The firmware takes care of races with the TX handler. - */ - b43_switch_channel(dev, phy->channel); - } - - if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) - b43_set_retry_limits(dev, conf->short_frame_max_tx_count, - conf->long_frame_max_tx_count); - changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; - if (!changed) - goto out_mac_enable; - - dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR); - - /* Adjust the desired TX power level. */ - if (conf->power_level != 0) { - if (conf->power_level != phy->desired_txpower) { - phy->desired_txpower = conf->power_level; - b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | - B43_TXPWR_IGNORE_TSSI); - } - } - - /* Antennas for RX and management frame TX. */ - antenna = B43_ANTENNA_DEFAULT; - b43_mgmtframe_txantenna(dev, antenna); - antenna = B43_ANTENNA_DEFAULT; - if (phy->ops->set_rx_antenna) - phy->ops->set_rx_antenna(dev, antenna); - - if (wl->radio_enabled != phy->radio_on) { - if (wl->radio_enabled) { - b43_software_rfkill(dev, false); - b43info(dev->wl, "Radio turned on by software\n"); - if (!dev->radio_hw_enable) { - b43info(dev->wl, "The hardware RF-kill button " - "still turns the radio physically off. " - "Press the button to turn it on.\n"); - } - } else { - b43_software_rfkill(dev, true); - b43info(dev->wl, "Radio turned off by software\n"); - } - } - -out_mac_enable: - b43_mac_enable(dev); - mutex_unlock(&wl->mutex); - - return err; -} - -static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates) -{ - struct ieee80211_supported_band *sband = - dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; - struct ieee80211_rate *rate; - int i; - u16 basic, direct, offset, basic_offset, rateptr; - - for (i = 0; i < sband->n_bitrates; i++) { - rate = &sband->bitrates[i]; - - if (b43_is_cck_rate(rate->hw_value)) { - direct = B43_SHM_SH_CCKDIRECT; - basic = B43_SHM_SH_CCKBASIC; - offset = b43_plcp_get_ratecode_cck(rate->hw_value); - offset &= 0xF; - } else { - direct = B43_SHM_SH_OFDMDIRECT; - basic = B43_SHM_SH_OFDMBASIC; - offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); - offset &= 0xF; - } - - rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); - - if (b43_is_cck_rate(rate->hw_value)) { - basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); - basic_offset &= 0xF; - } else { - basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); - basic_offset &= 0xF; - } - - /* - * Get the pointer that we need to point to - * from the direct map - */ - rateptr = b43_shm_read16(dev, B43_SHM_SHARED, - direct + 2 * basic_offset); - /* and write it to the basic map */ - b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, - rateptr); - } -} - -static void b43_op_bss_info_changed(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *conf, - u32 changed) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - - dev = wl->current_dev; - if (!dev || b43_status(dev) < B43_STAT_STARTED) - goto out_unlock_mutex; - - B43_WARN_ON(wl->vif != vif); - - if (changed & BSS_CHANGED_BSSID) { - if (conf->bssid) - memcpy(wl->bssid, conf->bssid, ETH_ALEN); - else - eth_zero_addr(wl->bssid); - } - - if (b43_status(dev) >= B43_STAT_INITIALIZED) { - if (changed & BSS_CHANGED_BEACON && - (b43_is_mode(wl, NL80211_IFTYPE_AP) || - b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || - b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) - b43_update_templates(wl); - - if (changed & BSS_CHANGED_BSSID) - b43_write_mac_bssid_templates(dev); - } - - b43_mac_suspend(dev); - - /* Update templates for AP/mesh mode. */ - if (changed & BSS_CHANGED_BEACON_INT && - (b43_is_mode(wl, NL80211_IFTYPE_AP) || - b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || - b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) && - conf->beacon_int) - b43_set_beacon_int(dev, conf->beacon_int); - - if (changed & BSS_CHANGED_BASIC_RATES) - b43_update_basic_rates(dev, conf->basic_rates); - - if (changed & BSS_CHANGED_ERP_SLOT) { - if (conf->use_short_slot) - b43_short_slot_timing_enable(dev); - else - b43_short_slot_timing_disable(dev); - } - - b43_mac_enable(dev); -out_unlock_mutex: - mutex_unlock(&wl->mutex); -} - -static int b43_op_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 b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - u8 algorithm; - u8 index; - int err; - static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - - if (modparam_nohwcrypt) - return -ENOSPC; /* User disabled HW-crypto */ - - if ((vif->type == NL80211_IFTYPE_ADHOC || - vif->type == NL80211_IFTYPE_MESH_POINT) && - (key->cipher == WLAN_CIPHER_SUITE_TKIP || - key->cipher == WLAN_CIPHER_SUITE_CCMP) && - !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { - /* - * For now, disable hw crypto for the RSN IBSS group keys. This - * could be optimized in the future, but until that gets - * implemented, use of software crypto for group addressed - * frames is a acceptable to allow RSN IBSS to be used. - */ - return -EOPNOTSUPP; - } - - mutex_lock(&wl->mutex); - - dev = wl->current_dev; - err = -ENODEV; - if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) - goto out_unlock; - - if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { - /* We don't have firmware for the crypto engine. - * Must use software-crypto. */ - err = -EOPNOTSUPP; - goto out_unlock; - } - - err = -EINVAL; - switch (key->cipher) { - case WLAN_CIPHER_SUITE_WEP40: - algorithm = B43_SEC_ALGO_WEP40; - break; - case WLAN_CIPHER_SUITE_WEP104: - algorithm = B43_SEC_ALGO_WEP104; - break; - case WLAN_CIPHER_SUITE_TKIP: - algorithm = B43_SEC_ALGO_TKIP; - break; - case WLAN_CIPHER_SUITE_CCMP: - algorithm = B43_SEC_ALGO_AES; - break; - default: - B43_WARN_ON(1); - goto out_unlock; - } - index = (u8) (key->keyidx); - if (index > 3) - goto out_unlock; - - switch (cmd) { - case SET_KEY: - if (algorithm == B43_SEC_ALGO_TKIP && - (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) || - !modparam_hwtkip)) { - /* We support only pairwise key */ - err = -EOPNOTSUPP; - goto out_unlock; - } - - if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { - if (WARN_ON(!sta)) { - err = -EOPNOTSUPP; - goto out_unlock; - } - /* Pairwise key with an assigned MAC address. */ - err = b43_key_write(dev, -1, algorithm, - key->key, key->keylen, - sta->addr, key); - } else { - /* Group key */ - err = b43_key_write(dev, index, algorithm, - key->key, key->keylen, NULL, key); - } - if (err) - goto out_unlock; - - if (algorithm == B43_SEC_ALGO_WEP40 || - algorithm == B43_SEC_ALGO_WEP104) { - b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); - } else { - b43_hf_write(dev, - b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); - } - key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; - if (algorithm == B43_SEC_ALGO_TKIP) - key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; - break; - case DISABLE_KEY: { - err = b43_key_clear(dev, key->hw_key_idx); - if (err) - goto out_unlock; - break; - } - default: - B43_WARN_ON(1); - } - -out_unlock: - if (!err) { - b43dbg(wl, "%s hardware based encryption for keyidx: %d, " - "mac: %pM\n", - cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, - sta ? sta->addr : bcast_addr); - b43_dump_keymemory(dev); - } - mutex_unlock(&wl->mutex); - - return err; -} - -static void b43_op_configure_filter(struct ieee80211_hw *hw, - unsigned int changed, unsigned int *fflags, - u64 multicast) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (!dev) { - *fflags = 0; - goto out_unlock; - } - - *fflags &= FIF_ALLMULTI | - FIF_FCSFAIL | - FIF_PLCPFAIL | - FIF_CONTROL | - FIF_OTHER_BSS | - FIF_BCN_PRBRESP_PROMISC; - - changed &= FIF_ALLMULTI | - FIF_FCSFAIL | - FIF_PLCPFAIL | - FIF_CONTROL | - FIF_OTHER_BSS | - FIF_BCN_PRBRESP_PROMISC; - - wl->filter_flags = *fflags; - - if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) - b43_adjust_opmode(dev); - -out_unlock: - mutex_unlock(&wl->mutex); -} - -/* Locking: wl->mutex - * Returns the current dev. This might be different from the passed in dev, - * because the core might be gone away while we unlocked the mutex. */ -static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev) -{ - struct b43_wl *wl; - struct b43_wldev *orig_dev; - u32 mask; - int queue_num; - - if (!dev) - return NULL; - wl = dev->wl; -redo: - if (!dev || b43_status(dev) < B43_STAT_STARTED) - return dev; - - /* Cancel work. Unlock to avoid deadlocks. */ - mutex_unlock(&wl->mutex); - cancel_delayed_work_sync(&dev->periodic_work); - cancel_work_sync(&wl->tx_work); - b43_leds_stop(dev); - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (!dev || b43_status(dev) < B43_STAT_STARTED) { - /* Whoops, aliens ate up the device while we were unlocked. */ - return dev; - } - - /* Disable interrupts on the device. */ - b43_set_status(dev, B43_STAT_INITIALIZED); - if (b43_bus_host_is_sdio(dev->dev)) { - /* wl->mutex is locked. That is enough. */ - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); - b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ - } else { - spin_lock_irq(&wl->hardirq_lock); - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); - b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ - spin_unlock_irq(&wl->hardirq_lock); - } - /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */ - orig_dev = dev; - mutex_unlock(&wl->mutex); - if (b43_bus_host_is_sdio(dev->dev)) { - b43_sdio_free_irq(dev); - } else { - synchronize_irq(dev->dev->irq); - free_irq(dev->dev->irq, dev); - } - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (!dev) - return dev; - if (dev != orig_dev) { - if (b43_status(dev) >= B43_STAT_STARTED) - goto redo; - return dev; - } - mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); - B43_WARN_ON(mask != 0xFFFFFFFF && mask); - - /* Drain all TX queues. */ - for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) { - while (skb_queue_len(&wl->tx_queue[queue_num])) { - struct sk_buff *skb; - - skb = skb_dequeue(&wl->tx_queue[queue_num]); - ieee80211_free_txskb(wl->hw, skb); - } - } - - b43_mac_suspend(dev); - b43_leds_exit(dev); - b43dbg(wl, "Wireless interface stopped\n"); - - return dev; -} - -/* Locking: wl->mutex */ -static int b43_wireless_core_start(struct b43_wldev *dev) -{ - int err; - - B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); - - drain_txstatus_queue(dev); - if (b43_bus_host_is_sdio(dev->dev)) { - err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler); - if (err) { - b43err(dev->wl, "Cannot request SDIO IRQ\n"); - goto out; - } - } else { - err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler, - b43_interrupt_thread_handler, - IRQF_SHARED, KBUILD_MODNAME, dev); - if (err) { - b43err(dev->wl, "Cannot request IRQ-%d\n", - dev->dev->irq); - goto out; - } - } - - /* We are ready to run. */ - ieee80211_wake_queues(dev->wl->hw); - b43_set_status(dev, B43_STAT_STARTED); - - /* Start data flow (TX/RX). */ - b43_mac_enable(dev); - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); - - /* Start maintenance work */ - b43_periodic_tasks_setup(dev); - - b43_leds_init(dev); - - b43dbg(dev->wl, "Wireless interface started\n"); -out: - return err; -} - -static char *b43_phy_name(struct b43_wldev *dev, u8 phy_type) -{ - switch (phy_type) { - case B43_PHYTYPE_A: - return "A"; - case B43_PHYTYPE_B: - return "B"; - case B43_PHYTYPE_G: - return "G"; - case B43_PHYTYPE_N: - return "N"; - case B43_PHYTYPE_LP: - return "LP"; - case B43_PHYTYPE_SSLPN: - return "SSLPN"; - case B43_PHYTYPE_HT: - return "HT"; - case B43_PHYTYPE_LCN: - return "LCN"; - case B43_PHYTYPE_LCNXN: - return "LCNXN"; - case B43_PHYTYPE_LCN40: - return "LCN40"; - case B43_PHYTYPE_AC: - return "AC"; - } - return "UNKNOWN"; -} - -/* Get PHY and RADIO versioning numbers */ -static int b43_phy_versioning(struct b43_wldev *dev) -{ - struct b43_phy *phy = &dev->phy; - const u8 core_rev = dev->dev->core_rev; - u32 tmp; - u8 analog_type; - u8 phy_type; - u8 phy_rev; - u16 radio_manuf; - u16 radio_id; - u16 radio_rev; - u8 radio_ver; - int unsupported = 0; - - /* Get PHY versioning */ - tmp = b43_read16(dev, B43_MMIO_PHY_VER); - analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; - phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; - phy_rev = (tmp & B43_PHYVER_VERSION); - - /* LCNXN is continuation of N which run out of revisions */ - if (phy_type == B43_PHYTYPE_LCNXN) { - phy_type = B43_PHYTYPE_N; - phy_rev += 16; - } - - switch (phy_type) { -#ifdef CONFIG_B43_PHY_G - case B43_PHYTYPE_G: - if (phy_rev > 9) - unsupported = 1; - break; -#endif -#ifdef CONFIG_B43_PHY_N - case B43_PHYTYPE_N: - if (phy_rev >= 19) - unsupported = 1; - break; -#endif -#ifdef CONFIG_B43_PHY_LP - case B43_PHYTYPE_LP: - if (phy_rev > 2) - unsupported = 1; - break; -#endif -#ifdef CONFIG_B43_PHY_HT - case B43_PHYTYPE_HT: - if (phy_rev > 1) - unsupported = 1; - break; -#endif -#ifdef CONFIG_B43_PHY_LCN - case B43_PHYTYPE_LCN: - if (phy_rev > 1) - unsupported = 1; - break; -#endif -#ifdef CONFIG_B43_PHY_AC - case B43_PHYTYPE_AC: - if (phy_rev > 1) - unsupported = 1; - break; -#endif - default: - unsupported = 1; - } - if (unsupported) { - b43err(dev->wl, "FOUND UNSUPPORTED PHY (Analog %u, Type %d (%s), Revision %u)\n", - analog_type, phy_type, b43_phy_name(dev, phy_type), - phy_rev); - return -EOPNOTSUPP; - } - b43info(dev->wl, "Found PHY: Analog %u, Type %d (%s), Revision %u\n", - analog_type, phy_type, b43_phy_name(dev, phy_type), phy_rev); - - /* Get RADIO versioning */ - if (core_rev == 40 || core_rev == 42) { - radio_manuf = 0x17F; - - b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, 0); - radio_rev = b43_read16(dev, B43_MMIO_RADIO24_DATA); - - b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, 1); - radio_id = b43_read16(dev, B43_MMIO_RADIO24_DATA); - - radio_ver = 0; /* Is there version somewhere? */ - } else if (core_rev >= 24) { - u16 radio24[3]; - - for (tmp = 0; tmp < 3; tmp++) { - b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, tmp); - radio24[tmp] = b43_read16(dev, B43_MMIO_RADIO24_DATA); - } - - radio_manuf = 0x17F; - radio_id = (radio24[2] << 8) | radio24[1]; - radio_rev = (radio24[0] & 0xF); - radio_ver = (radio24[0] & 0xF0) >> 4; - } else { - if (dev->dev->chip_id == 0x4317) { - if (dev->dev->chip_rev == 0) - tmp = 0x3205017F; - else if (dev->dev->chip_rev == 1) - tmp = 0x4205017F; - else - tmp = 0x5205017F; - } else { - b43_write16f(dev, B43_MMIO_RADIO_CONTROL, - B43_RADIOCTL_ID); - tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); - b43_write16f(dev, B43_MMIO_RADIO_CONTROL, - B43_RADIOCTL_ID); - tmp |= b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; - } - radio_manuf = (tmp & 0x00000FFF); - radio_id = (tmp & 0x0FFFF000) >> 12; - radio_rev = (tmp & 0xF0000000) >> 28; - radio_ver = 0; /* Probably not available on old hw */ - } - - if (radio_manuf != 0x17F /* Broadcom */) - unsupported = 1; - switch (phy_type) { - case B43_PHYTYPE_A: - if (radio_id != 0x2060) - unsupported = 1; - if (radio_rev != 1) - unsupported = 1; - if (radio_manuf != 0x17F) - unsupported = 1; - break; - case B43_PHYTYPE_B: - if ((radio_id & 0xFFF0) != 0x2050) - unsupported = 1; - break; - case B43_PHYTYPE_G: - if (radio_id != 0x2050) - unsupported = 1; - break; - case B43_PHYTYPE_N: - if (radio_id != 0x2055 && radio_id != 0x2056 && - radio_id != 0x2057) - unsupported = 1; - if (radio_id == 0x2057 && - !(radio_rev == 9 || radio_rev == 14)) - unsupported = 1; - break; - case B43_PHYTYPE_LP: - if (radio_id != 0x2062 && radio_id != 0x2063) - unsupported = 1; - break; - case B43_PHYTYPE_HT: - if (radio_id != 0x2059) - unsupported = 1; - break; - case B43_PHYTYPE_LCN: - if (radio_id != 0x2064) - unsupported = 1; - break; - case B43_PHYTYPE_AC: - if (radio_id != 0x2069) - unsupported = 1; - break; - default: - B43_WARN_ON(1); - } - if (unsupported) { - b43err(dev->wl, - "FOUND UNSUPPORTED RADIO (Manuf 0x%X, ID 0x%X, Revision %u, Version %u)\n", - radio_manuf, radio_id, radio_rev, radio_ver); - return -EOPNOTSUPP; - } - b43info(dev->wl, - "Found Radio: Manuf 0x%X, ID 0x%X, Revision %u, Version %u\n", - radio_manuf, radio_id, radio_rev, radio_ver); - - /* FIXME: b43 treats "id" as "ver" and ignores the real "ver" */ - phy->radio_manuf = radio_manuf; - phy->radio_ver = radio_id; - phy->radio_rev = radio_rev; - - phy->analog = analog_type; - phy->type = phy_type; - phy->rev = phy_rev; - - return 0; -} - -static void setup_struct_phy_for_init(struct b43_wldev *dev, - struct b43_phy *phy) -{ - phy->hardware_power_control = !!modparam_hwpctl; - phy->next_txpwr_check_time = jiffies; - /* PHY TX errors counter. */ - atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); - -#if B43_DEBUG - phy->phy_locked = false; - phy->radio_locked = false; -#endif -} - -static void setup_struct_wldev_for_init(struct b43_wldev *dev) -{ - dev->dfq_valid = false; - - /* Assume the radio is enabled. If it's not enabled, the state will - * immediately get fixed on the first periodic work run. */ - dev->radio_hw_enable = true; - - /* Stats */ - memset(&dev->stats, 0, sizeof(dev->stats)); - - setup_struct_phy_for_init(dev, &dev->phy); - - /* IRQ related flags */ - dev->irq_reason = 0; - memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); - dev->irq_mask = B43_IRQ_MASKTEMPLATE; - if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) - dev->irq_mask &= ~B43_IRQ_PHY_TXERR; - - dev->mac_suspended = 1; - - /* Noise calculation context */ - memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); -} - -static void b43_bluetooth_coext_enable(struct b43_wldev *dev) -{ - struct ssb_sprom *sprom = dev->dev->bus_sprom; - u64 hf; - - if (!modparam_btcoex) - return; - if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) - return; - if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) - return; - - hf = b43_hf_read(dev); - if (sprom->boardflags_lo & B43_BFL_BTCMOD) - hf |= B43_HF_BTCOEXALT; - else - hf |= B43_HF_BTCOEX; - b43_hf_write(dev, hf); -} - -static void b43_bluetooth_coext_disable(struct b43_wldev *dev) -{ - if (!modparam_btcoex) - return; - //TODO -} - -static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) -{ - struct ssb_bus *bus; - u32 tmp; - -#ifdef CONFIG_B43_SSB - if (dev->dev->bus_type != B43_BUS_SSB) - return; -#else - return; -#endif - - bus = dev->dev->sdev->bus; - - if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) || - (bus->chip_id == 0x4312)) { - tmp = ssb_read32(dev->dev->sdev, SSB_IMCFGLO); - tmp &= ~SSB_IMCFGLO_REQTO; - tmp &= ~SSB_IMCFGLO_SERTO; - tmp |= 0x3; - ssb_write32(dev->dev->sdev, SSB_IMCFGLO, tmp); - ssb_commit_settings(bus); - } -} - -static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) -{ - u16 pu_delay; - - /* The time value is in microseconds. */ - if (dev->phy.type == B43_PHYTYPE_A) - pu_delay = 3700; - else - pu_delay = 1050; - if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) - pu_delay = 500; - if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) - pu_delay = max(pu_delay, (u16)2400); - - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); -} - -/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ -static void b43_set_pretbtt(struct b43_wldev *dev) -{ - u16 pretbtt; - - /* The time value is in microseconds. */ - if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { - pretbtt = 2; - } else { - if (dev->phy.type == B43_PHYTYPE_A) - pretbtt = 120; - else - pretbtt = 250; - } - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); - b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); -} - -/* Shutdown a wireless core */ -/* Locking: wl->mutex */ -static void b43_wireless_core_exit(struct b43_wldev *dev) -{ - B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED); - if (!dev || b43_status(dev) != B43_STAT_INITIALIZED) - return; - - b43_set_status(dev, B43_STAT_UNINIT); - - /* Stop the microcode PSM. */ - b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN, - B43_MACCTL_PSM_JMP0); - - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - bcma_host_pci_down(dev->dev->bdev->bus); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - /* TODO */ - break; -#endif - } - - b43_dma_free(dev); - b43_pio_free(dev); - b43_chip_exit(dev); - dev->phy.ops->switch_analog(dev, 0); - if (dev->wl->current_beacon) { - dev_kfree_skb_any(dev->wl->current_beacon); - dev->wl->current_beacon = NULL; - } - - b43_device_disable(dev, 0); - b43_bus_may_powerdown(dev); -} - -/* Initialize a wireless core */ -static int b43_wireless_core_init(struct b43_wldev *dev) -{ - struct ssb_sprom *sprom = dev->dev->bus_sprom; - struct b43_phy *phy = &dev->phy; - int err; - u64 hf; - - B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); - - err = b43_bus_powerup(dev, 0); - if (err) - goto out; - if (!b43_device_is_enabled(dev)) - b43_wireless_core_reset(dev, phy->gmode); - - /* Reset all data structures. */ - setup_struct_wldev_for_init(dev); - phy->ops->prepare_structs(dev); - - /* Enable IRQ routing to this device. */ - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - bcma_host_pci_irq_ctl(dev->dev->bdev->bus, - dev->dev->bdev, true); - bcma_host_pci_up(dev->dev->bdev->bus); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - ssb_pcicore_dev_irqvecs_enable(&dev->dev->sdev->bus->pcicore, - dev->dev->sdev); - break; -#endif - } - - b43_imcfglo_timeouts_workaround(dev); - b43_bluetooth_coext_disable(dev); - if (phy->ops->prepare_hardware) { - err = phy->ops->prepare_hardware(dev); - if (err) - goto err_busdown; - } - err = b43_chip_init(dev); - if (err) - goto err_busdown; - b43_shm_write16(dev, B43_SHM_SHARED, - B43_SHM_SH_WLCOREREV, dev->dev->core_rev); - hf = b43_hf_read(dev); - if (phy->type == B43_PHYTYPE_G) { - hf |= B43_HF_SYMW; - if (phy->rev == 1) - hf |= B43_HF_GDCW; - if (sprom->boardflags_lo & B43_BFL_PACTRL) - hf |= B43_HF_OFDMPABOOST; - } - if (phy->radio_ver == 0x2050) { - if (phy->radio_rev == 6) - hf |= B43_HF_4318TSSI; - if (phy->radio_rev < 6) - hf |= B43_HF_VCORECALC; - } - if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW) - hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */ -#if defined(CONFIG_B43_SSB) && defined(CONFIG_SSB_DRIVER_PCICORE) - if (dev->dev->bus_type == B43_BUS_SSB && - dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI && - dev->dev->sdev->bus->pcicore.dev->id.revision <= 10) - hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */ -#endif - hf &= ~B43_HF_SKCFPUP; - b43_hf_write(dev, hf); - - /* tell the ucode MAC capabilities */ - if (dev->dev->core_rev >= 13) { - u32 mac_hw_cap = b43_read32(dev, B43_MMIO_MAC_HW_CAP); - - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_MACHW_L, - mac_hw_cap & 0xffff); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_MACHW_H, - (mac_hw_cap >> 16) & 0xffff); - } - - b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, - B43_DEFAULT_LONG_RETRY_LIMIT); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); - - /* Disable sending probe responses from firmware. - * Setting the MaxTime to one usec will always trigger - * a timeout, so we never send any probe resp. - * A timeout of zero is infinite. */ - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); - - b43_rate_memory_init(dev); - b43_set_phytxctl_defaults(dev); - - /* Minimum Contention Window */ - if (phy->type == B43_PHYTYPE_B) - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); - else - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); - /* Maximum Contention Window */ - b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); - - /* write phytype and phyvers */ - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PHYTYPE, phy->type); - b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PHYVER, phy->rev); - - if (b43_bus_host_is_pcmcia(dev->dev) || - b43_bus_host_is_sdio(dev->dev)) { - dev->__using_pio_transfers = true; - err = b43_pio_init(dev); - } else if (dev->use_pio) { - b43warn(dev->wl, "Forced PIO by use_pio module parameter. " - "This should not be needed and will result in lower " - "performance.\n"); - dev->__using_pio_transfers = true; - err = b43_pio_init(dev); - } else { - dev->__using_pio_transfers = false; - err = b43_dma_init(dev); - } - if (err) - goto err_chip_exit; - b43_qos_init(dev); - b43_set_synth_pu_delay(dev, 1); - b43_bluetooth_coext_enable(dev); - - b43_bus_powerup(dev, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)); - b43_upload_card_macaddress(dev); - b43_security_init(dev); - - ieee80211_wake_queues(dev->wl->hw); - - b43_set_status(dev, B43_STAT_INITIALIZED); - -out: - return err; - -err_chip_exit: - b43_chip_exit(dev); -err_busdown: - b43_bus_may_powerdown(dev); - B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); - return err; -} - -static int b43_op_add_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - int err = -EOPNOTSUPP; - - /* TODO: allow WDS/AP devices to coexist */ - - if (vif->type != NL80211_IFTYPE_AP && - vif->type != NL80211_IFTYPE_MESH_POINT && - vif->type != NL80211_IFTYPE_STATION && - vif->type != NL80211_IFTYPE_WDS && - vif->type != NL80211_IFTYPE_ADHOC) - return -EOPNOTSUPP; - - mutex_lock(&wl->mutex); - if (wl->operating) - goto out_mutex_unlock; - - b43dbg(wl, "Adding Interface type %d\n", vif->type); - - dev = wl->current_dev; - wl->operating = true; - wl->vif = vif; - wl->if_type = vif->type; - memcpy(wl->mac_addr, vif->addr, ETH_ALEN); - - b43_adjust_opmode(dev); - b43_set_pretbtt(dev); - b43_set_synth_pu_delay(dev, 0); - b43_upload_card_macaddress(dev); - - err = 0; - out_mutex_unlock: - mutex_unlock(&wl->mutex); - - if (err == 0) - b43_op_bss_info_changed(hw, vif, &vif->bss_conf, ~0); - - return err; -} - -static void b43_op_remove_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - - b43dbg(wl, "Removing Interface type %d\n", vif->type); - - mutex_lock(&wl->mutex); - - B43_WARN_ON(!wl->operating); - B43_WARN_ON(wl->vif != vif); - wl->vif = NULL; - - wl->operating = false; - - b43_adjust_opmode(dev); - eth_zero_addr(wl->mac_addr); - b43_upload_card_macaddress(dev); - - mutex_unlock(&wl->mutex); -} - -static int b43_op_start(struct ieee80211_hw *hw) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - int did_init = 0; - int err = 0; - - /* Kill all old instance specific information to make sure - * the card won't use it in the short timeframe between start - * and mac80211 reconfiguring it. */ - eth_zero_addr(wl->bssid); - eth_zero_addr(wl->mac_addr); - wl->filter_flags = 0; - wl->radiotap_enabled = false; - b43_qos_clear(wl); - wl->beacon0_uploaded = false; - wl->beacon1_uploaded = false; - wl->beacon_templates_virgin = true; - wl->radio_enabled = true; - - mutex_lock(&wl->mutex); - - if (b43_status(dev) < B43_STAT_INITIALIZED) { - err = b43_wireless_core_init(dev); - if (err) - goto out_mutex_unlock; - did_init = 1; - } - - if (b43_status(dev) < B43_STAT_STARTED) { - err = b43_wireless_core_start(dev); - if (err) { - if (did_init) - b43_wireless_core_exit(dev); - goto out_mutex_unlock; - } - } - - /* XXX: only do if device doesn't support rfkill irq */ - wiphy_rfkill_start_polling(hw->wiphy); - - out_mutex_unlock: - mutex_unlock(&wl->mutex); - - /* - * Configuration may have been overwritten during initialization. - * Reload the configuration, but only if initialization was - * successful. Reloading the configuration after a failed init - * may hang the system. - */ - if (!err) - b43_op_config(hw, ~0); - - return err; -} - -static void b43_op_stop(struct ieee80211_hw *hw) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - - cancel_work_sync(&(wl->beacon_update_trigger)); - - if (!dev) - goto out; - - mutex_lock(&wl->mutex); - if (b43_status(dev) >= B43_STAT_STARTED) { - dev = b43_wireless_core_stop(dev); - if (!dev) - goto out_unlock; - } - b43_wireless_core_exit(dev); - wl->radio_enabled = false; - -out_unlock: - mutex_unlock(&wl->mutex); -out: - cancel_work_sync(&(wl->txpower_adjust_work)); -} - -static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, - struct ieee80211_sta *sta, bool set) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - - b43_update_templates(wl); - - return 0; -} - -static void b43_op_sta_notify(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - enum sta_notify_cmd notify_cmd, - struct ieee80211_sta *sta) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - - B43_WARN_ON(!vif || wl->vif != vif); -} - -static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - const u8 *mac_addr) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { - /* Disable CFP update during scan on other channels. */ - b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP); - } - mutex_unlock(&wl->mutex); -} - -static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw, - struct ieee80211_vif *vif) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev; - - mutex_lock(&wl->mutex); - dev = wl->current_dev; - if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { - /* Re-enable CFP update. */ - b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP); - } - mutex_unlock(&wl->mutex); -} - -static int b43_op_get_survey(struct ieee80211_hw *hw, int idx, - struct survey_info *survey) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - struct ieee80211_conf *conf = &hw->conf; - - if (idx != 0) - return -ENOENT; - - survey->channel = conf->chandef.chan; - survey->filled = SURVEY_INFO_NOISE_DBM; - survey->noise = dev->stats.link_noise; - - return 0; -} - -static const struct ieee80211_ops b43_hw_ops = { - .tx = b43_op_tx, - .conf_tx = b43_op_conf_tx, - .add_interface = b43_op_add_interface, - .remove_interface = b43_op_remove_interface, - .config = b43_op_config, - .bss_info_changed = b43_op_bss_info_changed, - .configure_filter = b43_op_configure_filter, - .set_key = b43_op_set_key, - .update_tkip_key = b43_op_update_tkip_key, - .get_stats = b43_op_get_stats, - .get_tsf = b43_op_get_tsf, - .set_tsf = b43_op_set_tsf, - .start = b43_op_start, - .stop = b43_op_stop, - .set_tim = b43_op_beacon_set_tim, - .sta_notify = b43_op_sta_notify, - .sw_scan_start = b43_op_sw_scan_start_notifier, - .sw_scan_complete = b43_op_sw_scan_complete_notifier, - .get_survey = b43_op_get_survey, - .rfkill_poll = b43_rfkill_poll, -}; - -/* Hard-reset the chip. Do not call this directly. - * Use b43_controller_restart() - */ -static void b43_chip_reset(struct work_struct *work) -{ - struct b43_wldev *dev = - container_of(work, struct b43_wldev, restart_work); - struct b43_wl *wl = dev->wl; - int err = 0; - int prev_status; - - mutex_lock(&wl->mutex); - - prev_status = b43_status(dev); - /* Bring the device down... */ - if (prev_status >= B43_STAT_STARTED) { - dev = b43_wireless_core_stop(dev); - if (!dev) { - err = -ENODEV; - goto out; - } - } - if (prev_status >= B43_STAT_INITIALIZED) - b43_wireless_core_exit(dev); - - /* ...and up again. */ - if (prev_status >= B43_STAT_INITIALIZED) { - err = b43_wireless_core_init(dev); - if (err) - goto out; - } - if (prev_status >= B43_STAT_STARTED) { - err = b43_wireless_core_start(dev); - if (err) { - b43_wireless_core_exit(dev); - goto out; - } - } -out: - if (err) - wl->current_dev = NULL; /* Failed to init the dev. */ - mutex_unlock(&wl->mutex); - - if (err) { - b43err(wl, "Controller restart FAILED\n"); - return; - } - - /* reload configuration */ - b43_op_config(wl->hw, ~0); - if (wl->vif) - b43_op_bss_info_changed(wl->hw, wl->vif, &wl->vif->bss_conf, ~0); - - b43info(wl, "Controller restarted\n"); -} - -static int b43_setup_bands(struct b43_wldev *dev, - bool have_2ghz_phy, bool have_5ghz_phy) -{ - struct ieee80211_hw *hw = dev->wl->hw; - struct b43_phy *phy = &dev->phy; - bool limited_2g; - bool limited_5g; - - /* We don't support all 2 GHz channels on some devices */ - limited_2g = phy->radio_ver == 0x2057 && - (phy->radio_rev == 9 || phy->radio_rev == 14); - limited_5g = phy->radio_ver == 0x2057 && - phy->radio_rev == 9; - - if (have_2ghz_phy) - hw->wiphy->bands[IEEE80211_BAND_2GHZ] = limited_2g ? - &b43_band_2ghz_limited : &b43_band_2GHz; - if (dev->phy.type == B43_PHYTYPE_N) { - if (have_5ghz_phy) - hw->wiphy->bands[IEEE80211_BAND_5GHZ] = limited_5g ? - &b43_band_5GHz_nphy_limited : - &b43_band_5GHz_nphy; - } else { - if (have_5ghz_phy) - hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; - } - - dev->phy.supports_2ghz = have_2ghz_phy; - dev->phy.supports_5ghz = have_5ghz_phy; - - return 0; -} - -static void b43_wireless_core_detach(struct b43_wldev *dev) -{ - /* We release firmware that late to not be required to re-request - * is all the time when we reinit the core. */ - b43_release_firmware(dev); - b43_phy_free(dev); -} - -static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy, - bool *have_5ghz_phy) -{ - u16 dev_id = 0; - -#ifdef CONFIG_B43_BCMA - if (dev->dev->bus_type == B43_BUS_BCMA && - dev->dev->bdev->bus->hosttype == BCMA_HOSTTYPE_PCI) - dev_id = dev->dev->bdev->bus->host_pci->device; -#endif -#ifdef CONFIG_B43_SSB - if (dev->dev->bus_type == B43_BUS_SSB && - dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI) - dev_id = dev->dev->sdev->bus->host_pci->device; -#endif - /* Override with SPROM value if available */ - if (dev->dev->bus_sprom->dev_id) - dev_id = dev->dev->bus_sprom->dev_id; - - /* Note: below IDs can be "virtual" (not maching e.g. real PCI ID) */ - switch (dev_id) { - case 0x4324: /* BCM4306 */ - case 0x4312: /* BCM4311 */ - case 0x4319: /* BCM4318 */ - case 0x4328: /* BCM4321 */ - case 0x432b: /* BCM4322 */ - case 0x4350: /* BCM43222 */ - case 0x4353: /* BCM43224 */ - case 0x0576: /* BCM43224 */ - case 0x435f: /* BCM6362 */ - case 0x4331: /* BCM4331 */ - case 0x4359: /* BCM43228 */ - case 0x43a0: /* BCM4360 */ - case 0x43b1: /* BCM4352 */ - /* Dual band devices */ - *have_2ghz_phy = true; - *have_5ghz_phy = true; - return; - case 0x4321: /* BCM4306 */ - /* There are 14e4:4321 PCI devs with 2.4 GHz BCM4321 (N-PHY) */ - if (dev->phy.type != B43_PHYTYPE_G) - break; - /* fall through */ - case 0x4313: /* BCM4311 */ - case 0x431a: /* BCM4318 */ - case 0x432a: /* BCM4321 */ - case 0x432d: /* BCM4322 */ - case 0x4352: /* BCM43222 */ - case 0x435a: /* BCM43228 */ - case 0x4333: /* BCM4331 */ - case 0x43a2: /* BCM4360 */ - case 0x43b3: /* BCM4352 */ - /* 5 GHz only devices */ - *have_2ghz_phy = false; - *have_5ghz_phy = true; - return; - } - - /* As a fallback, try to guess using PHY type */ - switch (dev->phy.type) { - case B43_PHYTYPE_A: - *have_2ghz_phy = false; - *have_5ghz_phy = true; - return; - case B43_PHYTYPE_G: - case B43_PHYTYPE_N: - case B43_PHYTYPE_LP: - case B43_PHYTYPE_HT: - case B43_PHYTYPE_LCN: - *have_2ghz_phy = true; - *have_5ghz_phy = false; - return; - } - - B43_WARN_ON(1); -} - -static int b43_wireless_core_attach(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - struct b43_phy *phy = &dev->phy; - int err; - u32 tmp; - bool have_2ghz_phy = false, have_5ghz_phy = false; - - /* Do NOT do any device initialization here. - * Do it in wireless_core_init() instead. - * This function is for gathering basic information about the HW, only. - * Also some structs may be set up here. But most likely you want to have - * that in core_init(), too. - */ - - err = b43_bus_powerup(dev, 0); - if (err) { - b43err(wl, "Bus powerup failed\n"); - goto out; - } - - phy->do_full_init = true; - - /* Try to guess supported bands for the first init needs */ - switch (dev->dev->bus_type) { -#ifdef CONFIG_B43_BCMA - case B43_BUS_BCMA: - tmp = bcma_aread32(dev->dev->bdev, BCMA_IOST); - have_2ghz_phy = !!(tmp & B43_BCMA_IOST_2G_PHY); - have_5ghz_phy = !!(tmp & B43_BCMA_IOST_5G_PHY); - break; -#endif -#ifdef CONFIG_B43_SSB - case B43_BUS_SSB: - if (dev->dev->core_rev >= 5) { - tmp = ssb_read32(dev->dev->sdev, SSB_TMSHIGH); - have_2ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_2GHZ_PHY); - have_5ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_5GHZ_PHY); - } else - B43_WARN_ON(1); - break; -#endif - } - - dev->phy.gmode = have_2ghz_phy; - b43_wireless_core_reset(dev, dev->phy.gmode); - - /* Get the PHY type. */ - err = b43_phy_versioning(dev); - if (err) - goto err_powerdown; - - /* Get real info about supported bands */ - b43_supported_bands(dev, &have_2ghz_phy, &have_5ghz_phy); - - /* We don't support 5 GHz on some PHYs yet */ - if (have_5ghz_phy) { - switch (dev->phy.type) { - case B43_PHYTYPE_A: - case B43_PHYTYPE_G: - case B43_PHYTYPE_LP: - case B43_PHYTYPE_HT: - b43warn(wl, "5 GHz band is unsupported on this PHY\n"); - have_5ghz_phy = false; - } - } - - if (!have_2ghz_phy && !have_5ghz_phy) { - b43err(wl, "b43 can't support any band on this device\n"); - err = -EOPNOTSUPP; - goto err_powerdown; - } - - err = b43_phy_allocate(dev); - if (err) - goto err_powerdown; - - dev->phy.gmode = have_2ghz_phy; - b43_wireless_core_reset(dev, dev->phy.gmode); - - err = b43_validate_chipaccess(dev); - if (err) - goto err_phy_free; - err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); - if (err) - goto err_phy_free; - - /* Now set some default "current_dev" */ - if (!wl->current_dev) - wl->current_dev = dev; - INIT_WORK(&dev->restart_work, b43_chip_reset); - - dev->phy.ops->switch_analog(dev, 0); - b43_device_disable(dev, 0); - b43_bus_may_powerdown(dev); - -out: - return err; - -err_phy_free: - b43_phy_free(dev); -err_powerdown: - b43_bus_may_powerdown(dev); - return err; -} - -static void b43_one_core_detach(struct b43_bus_dev *dev) -{ - struct b43_wldev *wldev; - struct b43_wl *wl; - - /* Do not cancel ieee80211-workqueue based work here. - * See comment in b43_remove(). */ - - wldev = b43_bus_get_wldev(dev); - wl = wldev->wl; - b43_debugfs_remove_device(wldev); - b43_wireless_core_detach(wldev); - list_del(&wldev->list); - b43_bus_set_wldev(dev, NULL); - kfree(wldev); -} - -static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl) -{ - struct b43_wldev *wldev; - int err = -ENOMEM; - - wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); - if (!wldev) - goto out; - - wldev->use_pio = b43_modparam_pio; - wldev->dev = dev; - wldev->wl = wl; - b43_set_status(wldev, B43_STAT_UNINIT); - wldev->bad_frames_preempt = modparam_bad_frames_preempt; - INIT_LIST_HEAD(&wldev->list); - - err = b43_wireless_core_attach(wldev); - if (err) - goto err_kfree_wldev; - - b43_bus_set_wldev(dev, wldev); - b43_debugfs_add_device(wldev); - - out: - return err; - - err_kfree_wldev: - kfree(wldev); - return err; -} - -#define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ - (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ - (pdev->device == _device) && \ - (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ - (pdev->subsystem_device == _subdevice) ) - -#ifdef CONFIG_B43_SSB -static void b43_sprom_fixup(struct ssb_bus *bus) -{ - struct pci_dev *pdev; - - /* boardflags workarounds */ - if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && - bus->chip_id == 0x4301 && bus->sprom.board_rev == 0x74) - bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; - if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && - bus->boardinfo.type == 0x4E && bus->sprom.board_rev > 0x40) - bus->sprom.boardflags_lo |= B43_BFL_PACTRL; - if (bus->bustype == SSB_BUSTYPE_PCI) { - pdev = bus->host_pci; - if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || - IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || - IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || - IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || - IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || - IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || - IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) - bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; - } -} - -static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl) -{ - struct ieee80211_hw *hw = wl->hw; - - ssb_set_devtypedata(dev->sdev, NULL); - ieee80211_free_hw(hw); -} -#endif - -static struct b43_wl *b43_wireless_init(struct b43_bus_dev *dev) -{ - struct ssb_sprom *sprom = dev->bus_sprom; - struct ieee80211_hw *hw; - struct b43_wl *wl; - char chip_name[6]; - int queue_num; - - hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); - if (!hw) { - b43err(NULL, "Could not allocate ieee80211 device\n"); - return ERR_PTR(-ENOMEM); - } - wl = hw_to_b43_wl(hw); - - /* fill hw info */ - ieee80211_hw_set(hw, RX_INCLUDES_FCS); - ieee80211_hw_set(hw, SIGNAL_DBM); - - hw->wiphy->interface_modes = - BIT(NL80211_IFTYPE_AP) | - BIT(NL80211_IFTYPE_MESH_POINT) | - BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_WDS) | - BIT(NL80211_IFTYPE_ADHOC); - - hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; - - wl->hw_registred = false; - hw->max_rates = 2; - SET_IEEE80211_DEV(hw, dev->dev); - if (is_valid_ether_addr(sprom->et1mac)) - SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); - else - SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); - - /* Initialize struct b43_wl */ - wl->hw = hw; - mutex_init(&wl->mutex); - spin_lock_init(&wl->hardirq_lock); - spin_lock_init(&wl->beacon_lock); - INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); - INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); - INIT_WORK(&wl->tx_work, b43_tx_work); - - /* Initialize queues and flags. */ - for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) { - skb_queue_head_init(&wl->tx_queue[queue_num]); - wl->tx_queue_stopped[queue_num] = 0; - } - - snprintf(chip_name, ARRAY_SIZE(chip_name), - (dev->chip_id > 0x9999) ? "%d" : "%04X", dev->chip_id); - b43info(wl, "Broadcom %s WLAN found (core revision %u)\n", chip_name, - dev->core_rev); - return wl; -} - -#ifdef CONFIG_B43_BCMA -static int b43_bcma_probe(struct bcma_device *core) -{ - struct b43_bus_dev *dev; - struct b43_wl *wl; - int err; - - if (!modparam_allhwsupport && - (core->id.rev == 0x17 || core->id.rev == 0x18)) { - pr_err("Support for cores revisions 0x17 and 0x18 disabled by module param allhwsupport=0. Try b43.allhwsupport=1\n"); - return -ENOTSUPP; - } - - dev = b43_bus_dev_bcma_init(core); - if (!dev) - return -ENODEV; - - wl = b43_wireless_init(dev); - if (IS_ERR(wl)) { - err = PTR_ERR(wl); - goto bcma_out; - } - - err = b43_one_core_attach(dev, wl); - if (err) - goto bcma_err_wireless_exit; - - /* setup and start work to load firmware */ - INIT_WORK(&wl->firmware_load, b43_request_firmware); - schedule_work(&wl->firmware_load); - -bcma_out: - return err; - -bcma_err_wireless_exit: - ieee80211_free_hw(wl->hw); - return err; -} - -static void b43_bcma_remove(struct bcma_device *core) -{ - struct b43_wldev *wldev = bcma_get_drvdata(core); - struct b43_wl *wl = wldev->wl; - - /* We must cancel any work here before unregistering from ieee80211, - * as the ieee80211 unreg will destroy the workqueue. */ - cancel_work_sync(&wldev->restart_work); - cancel_work_sync(&wl->firmware_load); - - B43_WARN_ON(!wl); - if (!wldev->fw.ucode.data) - return; /* NULL if firmware never loaded */ - if (wl->current_dev == wldev && wl->hw_registred) { - b43_leds_stop(wldev); - ieee80211_unregister_hw(wl->hw); - } - - b43_one_core_detach(wldev->dev); - - /* Unregister HW RNG driver */ - b43_rng_exit(wl); - - b43_leds_unregister(wl); - - ieee80211_free_hw(wl->hw); -} - -static struct bcma_driver b43_bcma_driver = { - .name = KBUILD_MODNAME, - .id_table = b43_bcma_tbl, - .probe = b43_bcma_probe, - .remove = b43_bcma_remove, -}; -#endif - -#ifdef CONFIG_B43_SSB -static -int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id) -{ - struct b43_bus_dev *dev; - struct b43_wl *wl; - int err; - - dev = b43_bus_dev_ssb_init(sdev); - if (!dev) - return -ENOMEM; - - wl = ssb_get_devtypedata(sdev); - if (wl) { - b43err(NULL, "Dual-core devices are not supported\n"); - err = -ENOTSUPP; - goto err_ssb_kfree_dev; - } - - b43_sprom_fixup(sdev->bus); - - wl = b43_wireless_init(dev); - if (IS_ERR(wl)) { - err = PTR_ERR(wl); - goto err_ssb_kfree_dev; - } - ssb_set_devtypedata(sdev, wl); - B43_WARN_ON(ssb_get_devtypedata(sdev) != wl); - - err = b43_one_core_attach(dev, wl); - if (err) - goto err_ssb_wireless_exit; - - /* setup and start work to load firmware */ - INIT_WORK(&wl->firmware_load, b43_request_firmware); - schedule_work(&wl->firmware_load); - - return err; - -err_ssb_wireless_exit: - b43_wireless_exit(dev, wl); -err_ssb_kfree_dev: - kfree(dev); - return err; -} - -static void b43_ssb_remove(struct ssb_device *sdev) -{ - struct b43_wl *wl = ssb_get_devtypedata(sdev); - struct b43_wldev *wldev = ssb_get_drvdata(sdev); - struct b43_bus_dev *dev = wldev->dev; - - /* We must cancel any work here before unregistering from ieee80211, - * as the ieee80211 unreg will destroy the workqueue. */ - cancel_work_sync(&wldev->restart_work); - cancel_work_sync(&wl->firmware_load); - - B43_WARN_ON(!wl); - if (!wldev->fw.ucode.data) - return; /* NULL if firmware never loaded */ - if (wl->current_dev == wldev && wl->hw_registred) { - b43_leds_stop(wldev); - ieee80211_unregister_hw(wl->hw); - } - - b43_one_core_detach(dev); - - /* Unregister HW RNG driver */ - b43_rng_exit(wl); - - b43_leds_unregister(wl); - b43_wireless_exit(dev, wl); -} - -static struct ssb_driver b43_ssb_driver = { - .name = KBUILD_MODNAME, - .id_table = b43_ssb_tbl, - .probe = b43_ssb_probe, - .remove = b43_ssb_remove, -}; -#endif /* CONFIG_B43_SSB */ - -/* Perform a hardware reset. This can be called from any context. */ -void b43_controller_restart(struct b43_wldev *dev, const char *reason) -{ - /* Must avoid requeueing, if we are in shutdown. */ - if (b43_status(dev) < B43_STAT_INITIALIZED) - return; - b43info(dev->wl, "Controller RESET (%s) ...\n", reason); - ieee80211_queue_work(dev->wl->hw, &dev->restart_work); -} - -static void b43_print_driverinfo(void) -{ - const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", - *feat_leds = "", *feat_sdio = ""; - -#ifdef CONFIG_B43_PCI_AUTOSELECT - feat_pci = "P"; -#endif -#ifdef CONFIG_B43_PCMCIA - feat_pcmcia = "M"; -#endif -#ifdef CONFIG_B43_PHY_N - feat_nphy = "N"; -#endif -#ifdef CONFIG_B43_LEDS - feat_leds = "L"; -#endif -#ifdef CONFIG_B43_SDIO - feat_sdio = "S"; -#endif - printk(KERN_INFO "Broadcom 43xx driver loaded " - "[ Features: %s%s%s%s%s ]\n", - feat_pci, feat_pcmcia, feat_nphy, - feat_leds, feat_sdio); -} - -static int __init b43_init(void) -{ - int err; - - b43_debugfs_init(); - err = b43_sdio_init(); - if (err) - goto err_dfs_exit; -#ifdef CONFIG_B43_BCMA - err = bcma_driver_register(&b43_bcma_driver); - if (err) - goto err_sdio_exit; -#endif -#ifdef CONFIG_B43_SSB - err = ssb_driver_register(&b43_ssb_driver); - if (err) - goto err_bcma_driver_exit; -#endif - b43_print_driverinfo(); - - return err; - -#ifdef CONFIG_B43_SSB -err_bcma_driver_exit: -#endif -#ifdef CONFIG_B43_BCMA - bcma_driver_unregister(&b43_bcma_driver); -err_sdio_exit: -#endif - b43_sdio_exit(); -err_dfs_exit: - b43_debugfs_exit(); - return err; -} - -static void __exit b43_exit(void) -{ -#ifdef CONFIG_B43_SSB - ssb_driver_unregister(&b43_ssb_driver); -#endif -#ifdef CONFIG_B43_BCMA - bcma_driver_unregister(&b43_bcma_driver); -#endif - b43_sdio_exit(); - b43_debugfs_exit(); -} - -module_init(b43_init) -module_exit(b43_exit) |