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authorKalle Valo <kvalo@codeaurora.org>2015-11-17 19:49:26 +0200
committerKalle Valo <kvalo@codeaurora.org>2015-11-18 11:24:09 +0200
commit423e3ce336499ddb4e094f40649d12d9820f785b (patch)
tree42fb1ba3096034f8e84c09d086813d829fa41536 /drivers/net/wireless/b43legacy/main.c
parent58619b14d106e453e3924810fac16a8644b04db1 (diff)
b43legacy: 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/b43legacy/main.c')
-rw-r--r--drivers/net/wireless/b43legacy/main.c4062
1 files changed, 0 insertions, 4062 deletions
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
deleted file mode 100644
index afc1fb3e38df..000000000000
--- a/drivers/net/wireless/b43legacy/main.c
+++ /dev/null
@@ -1,4062 +0,0 @@
-/*
- *
- * Broadcom B43legacy wireless driver
- *
- * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
- * Copyright (c) 2005-2008 Stefano Brivio <stefano.brivio@polimi.it>
- * Copyright (c) 2005, 2006 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) 2007 Larry Finger <Larry.Finger@lwfinger.net>
- *
- * 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/sched.h>
-#include <linux/skbuff.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <net/dst.h>
-#include <asm/unaligned.h>
-
-#include "b43legacy.h"
-#include "main.h"
-#include "debugfs.h"
-#include "phy.h"
-#include "dma.h"
-#include "pio.h"
-#include "sysfs.h"
-#include "xmit.h"
-#include "radio.h"
-
-
-MODULE_DESCRIPTION("Broadcom B43legacy wireless driver");
-MODULE_AUTHOR("Martin Langer");
-MODULE_AUTHOR("Stefano Brivio");
-MODULE_AUTHOR("Michael Buesch");
-MODULE_LICENSE("GPL");
-
-MODULE_FIRMWARE("b43legacy/ucode2.fw");
-MODULE_FIRMWARE("b43legacy/ucode4.fw");
-
-#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
-static int modparam_pio;
-module_param_named(pio, modparam_pio, int, 0444);
-MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
-#elif defined(CONFIG_B43LEGACY_DMA)
-# define modparam_pio 0
-#elif defined(CONFIG_B43LEGACY_PIO)
-# define modparam_pio 1
-#endif
-
-static int modparam_bad_frames_preempt;
-module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
-MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames"
- " Preemption");
-
-static char modparam_fwpostfix[16];
-module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
-MODULE_PARM_DESC(fwpostfix, "Postfix for the firmware files to load.");
-
-/* The following table supports BCM4301, BCM4303 and BCM4306/2 devices. */
-static const struct ssb_device_id b43legacy_ssb_tbl[] = {
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 2),
- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 4),
- {},
-};
-MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl);
-
-
-/* Channel and ratetables are shared for all devices.
- * They can't be const, because ieee80211 puts some precalculated
- * data in there. This data is the same for all devices, so we don't
- * get concurrency issues */
-#define RATETAB_ENT(_rateid, _flags) \
- { \
- .bitrate = B43legacy_RATE_TO_100KBPS(_rateid), \
- .hw_value = (_rateid), \
- .flags = (_flags), \
- }
-/*
- * NOTE: When changing this, sync with xmit.c's
- * b43legacy_plcp_get_bitrate_idx_* functions!
- */
-static struct ieee80211_rate __b43legacy_ratetable[] = {
- RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0),
- RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
- RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0),
- RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0),
-};
-#define b43legacy_b_ratetable (__b43legacy_ratetable + 0)
-#define b43legacy_b_ratetable_size 4
-#define b43legacy_g_ratetable (__b43legacy_ratetable + 0)
-#define b43legacy_g_ratetable_size 12
-
-#define CHANTAB_ENT(_chanid, _freq) \
- { \
- .center_freq = (_freq), \
- .hw_value = (_chanid), \
- }
-static struct ieee80211_channel b43legacy_bg_chantable[] = {
- CHANTAB_ENT(1, 2412),
- CHANTAB_ENT(2, 2417),
- CHANTAB_ENT(3, 2422),
- CHANTAB_ENT(4, 2427),
- CHANTAB_ENT(5, 2432),
- CHANTAB_ENT(6, 2437),
- CHANTAB_ENT(7, 2442),
- CHANTAB_ENT(8, 2447),
- CHANTAB_ENT(9, 2452),
- CHANTAB_ENT(10, 2457),
- CHANTAB_ENT(11, 2462),
- CHANTAB_ENT(12, 2467),
- CHANTAB_ENT(13, 2472),
- CHANTAB_ENT(14, 2484),
-};
-
-static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = {
- .channels = b43legacy_bg_chantable,
- .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
- .bitrates = b43legacy_b_ratetable,
- .n_bitrates = b43legacy_b_ratetable_size,
-};
-
-static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = {
- .channels = b43legacy_bg_chantable,
- .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
- .bitrates = b43legacy_g_ratetable,
- .n_bitrates = b43legacy_g_ratetable_size,
-};
-
-static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev);
-static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev);
-static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev);
-static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev);
-
-
-static int b43legacy_ratelimit(struct b43legacy_wl *wl)
-{
- if (!wl || !wl->current_dev)
- return 1;
- if (b43legacy_status(wl->current_dev) < B43legacy_STAT_STARTED)
- return 1;
- /* We are up and running.
- * Ratelimit the messages to avoid DoS over the net. */
- return net_ratelimit();
-}
-
-void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_INFO "b43legacy-%s: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_ERR "b43legacy-%s ERROR: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- if (!b43legacy_ratelimit(wl))
- return;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_WARNING "b43legacy-%s warning: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-
-#if B43legacy_DEBUG
-void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
-{
- struct va_format vaf;
- va_list args;
-
- va_start(args, fmt);
-
- vaf.fmt = fmt;
- vaf.va = &args;
-
- printk(KERN_DEBUG "b43legacy-%s debug: %pV",
- (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
-
- va_end(args);
-}
-#endif /* DEBUG */
-
-static void b43legacy_ram_write(struct b43legacy_wldev *dev, u16 offset,
- u32 val)
-{
- u32 status;
-
- B43legacy_WARN_ON(offset % 4 != 0);
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- if (status & B43legacy_MACCTL_BE)
- val = swab32(val);
-
- b43legacy_write32(dev, B43legacy_MMIO_RAM_CONTROL, offset);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_RAM_DATA, val);
-}
-
-static inline
-void b43legacy_shm_control_word(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u32 control;
-
- /* "offset" is the WORD offset. */
-
- control = routing;
- control <<= 16;
- control |= offset;
- b43legacy_write32(dev, B43legacy_MMIO_SHM_CONTROL, control);
-}
-
-u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u32 ret;
-
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- ret = b43legacy_read16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED);
- ret <<= 16;
- b43legacy_shm_control_word(dev, routing,
- (offset >> 2) + 1);
- ret |= b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- ret = b43legacy_read32(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
-}
-
-u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
- u16 routing, u16 offset)
-{
- u16 ret;
-
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- ret = b43legacy_read16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED);
-
- return ret;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- ret = b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
-
- return ret;
-}
-
-void b43legacy_shm_write32(struct b43legacy_wldev *dev,
- u16 routing, u16 offset,
- u32 value)
-{
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- mmiowb();
- b43legacy_write16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED,
- (value >> 16) & 0xffff);
- mmiowb();
- b43legacy_shm_control_word(dev, routing,
- (offset >> 2) + 1);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA,
- value & 0xffff);
- return;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, value);
-}
-
-void b43legacy_shm_write16(struct b43legacy_wldev *dev, u16 routing, u16 offset,
- u16 value)
-{
- if (routing == B43legacy_SHM_SHARED) {
- B43legacy_WARN_ON((offset & 0x0001) != 0);
- if (offset & 0x0003) {
- /* Unaligned access */
- b43legacy_shm_control_word(dev, routing, offset >> 2);
- mmiowb();
- b43legacy_write16(dev,
- B43legacy_MMIO_SHM_DATA_UNALIGNED,
- value);
- return;
- }
- offset >>= 2;
- }
- b43legacy_shm_control_word(dev, routing, offset);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, value);
-}
-
-/* Read HostFlags */
-u32 b43legacy_hf_read(struct b43legacy_wldev *dev)
-{
- u32 ret;
-
- ret = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFHI);
- ret <<= 16;
- ret |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFLO);
-
- return ret;
-}
-
-/* Write HostFlags */
-void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value)
-{
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFLO,
- (value & 0x0000FFFF));
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_HOSTFHI,
- ((value & 0xFFFF0000) >> 16));
-}
-
-void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf)
-{
- /* We need to be careful. As we read the TSF from multiple
- * registers, we should take care of register overflows.
- * In theory, the whole tsf read process should be atomic.
- * We try to be atomic here, by restaring the read process,
- * if any of the high registers changed (overflew).
- */
- if (dev->dev->id.revision >= 3) {
- u32 low;
- u32 high;
- u32 high2;
-
- do {
- high = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_HIGH);
- low = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_LOW);
- high2 = b43legacy_read32(dev,
- B43legacy_MMIO_REV3PLUS_TSF_HIGH);
- } while (unlikely(high != high2));
-
- *tsf = high;
- *tsf <<= 32;
- *tsf |= low;
- } else {
- u64 tmp;
- u16 v0;
- u16 v1;
- u16 v2;
- u16 v3;
- u16 test1;
- u16 test2;
- u16 test3;
-
- do {
- v3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
- v2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
- v1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
- v0 = b43legacy_read16(dev, B43legacy_MMIO_TSF_0);
-
- test3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
- test2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
- test1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
- } while (v3 != test3 || v2 != test2 || v1 != test1);
-
- *tsf = v3;
- *tsf <<= 48;
- tmp = v2;
- tmp <<= 32;
- *tsf |= tmp;
- tmp = v1;
- tmp <<= 16;
- *tsf |= tmp;
- *tsf |= v0;
- }
-}
-
-static void b43legacy_time_lock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- status |= B43legacy_MACCTL_TBTTHOLD;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
- mmiowb();
-}
-
-static void b43legacy_time_unlock(struct b43legacy_wldev *dev)
-{
- u32 status;
-
- status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- status &= ~B43legacy_MACCTL_TBTTHOLD;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
-}
-
-static void b43legacy_tsf_write_locked(struct b43legacy_wldev *dev, u64 tsf)
-{
- /* Be careful with the in-progress timer.
- * First zero out the low register, so we have a full
- * register-overflow duration to complete the operation.
- */
- if (dev->dev->id.revision >= 3) {
- u32 lo = (tsf & 0x00000000FFFFFFFFULL);
- u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
-
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, 0);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_HIGH,
- hi);
- mmiowb();
- b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW,
- lo);
- } else {
- u16 v0 = (tsf & 0x000000000000FFFFULL);
- u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
- u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
- u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
-
- b43legacy_write16(dev, B43legacy_MMIO_TSF_0, 0);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_3, v3);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_2, v2);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_1, v1);
- mmiowb();
- b43legacy_write16(dev, B43legacy_MMIO_TSF_0, v0);
- }
-}
-
-void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf)
-{
- b43legacy_time_lock(dev);
- b43legacy_tsf_write_locked(dev, tsf);
- b43legacy_time_unlock(dev);
-}
-
-static
-void b43legacy_macfilter_set(struct b43legacy_wldev *dev,
- u16 offset, const u8 *mac)
-{
- static const u8 zero_addr[ETH_ALEN] = { 0 };
- u16 data;
-
- if (!mac)
- mac = zero_addr;
-
- offset |= 0x0020;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_CONTROL, offset);
-
- data = mac[0];
- data |= mac[1] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
- data = mac[2];
- data |= mac[3] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
- data = mac[4];
- data |= mac[5] << 8;
- b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
-}
-
-static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev *dev)
-{
- static const u8 zero_addr[ETH_ALEN] = { 0 };
- const u8 *mac = dev->wl->mac_addr;
- const u8 *bssid = dev->wl->bssid;
- u8 mac_bssid[ETH_ALEN * 2];
- int i;
- u32 tmp;
-
- if (!bssid)
- bssid = zero_addr;
- if (!mac)
- mac = zero_addr;
-
- b43legacy_macfilter_set(dev, B43legacy_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;
- b43legacy_ram_write(dev, 0x20 + i, tmp);
- b43legacy_ram_write(dev, 0x78 + i, tmp);
- b43legacy_ram_write(dev, 0x478 + i, tmp);
- }
-}
-
-static void b43legacy_upload_card_macaddress(struct b43legacy_wldev *dev)
-{
- b43legacy_write_mac_bssid_templates(dev);
- b43legacy_macfilter_set(dev, B43legacy_MACFILTER_SELF,
- dev->wl->mac_addr);
-}
-
-static void b43legacy_set_slot_time(struct b43legacy_wldev *dev,
- u16 slot_time)
-{
- /* slot_time is in usec. */
- if (dev->phy.type != B43legacy_PHYTYPE_G)
- return;
- b43legacy_write16(dev, 0x684, 510 + slot_time);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0010,
- slot_time);
-}
-
-static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev *dev)
-{
- b43legacy_set_slot_time(dev, 9);
-}
-
-static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev *dev)
-{
- b43legacy_set_slot_time(dev, 20);
-}
-
-/* Synchronize IRQ top- and bottom-half.
- * IRQs must be masked before calling this.
- * This must not be called with the irq_lock held.
- */
-static void b43legacy_synchronize_irq(struct b43legacy_wldev *dev)
-{
- synchronize_irq(dev->dev->irq);
- tasklet_kill(&dev->isr_tasklet);
-}
-
-/* DummyTransmission function, as documented on
- * http://bcm-specs.sipsolutions.net/DummyTransmission
- */
-void b43legacy_dummy_transmission(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- unsigned int i;
- unsigned int max_loop;
- u16 value;
- u32 buffer[5] = {
- 0x00000000,
- 0x00D40000,
- 0x00000000,
- 0x01000000,
- 0x00000000,
- };
-
- switch (phy->type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- max_loop = 0xFA;
- buffer[0] = 0x000B846E;
- break;
- default:
- B43legacy_BUG_ON(1);
- return;
- }
-
- for (i = 0; i < 5; i++)
- b43legacy_ram_write(dev, i * 4, buffer[i]);
-
- /* dummy read follows */
- b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
-
- b43legacy_write16(dev, 0x0568, 0x0000);
- b43legacy_write16(dev, 0x07C0, 0x0000);
- b43legacy_write16(dev, 0x050C, 0x0000);
- b43legacy_write16(dev, 0x0508, 0x0000);
- b43legacy_write16(dev, 0x050A, 0x0000);
- b43legacy_write16(dev, 0x054C, 0x0000);
- b43legacy_write16(dev, 0x056A, 0x0014);
- b43legacy_write16(dev, 0x0568, 0x0826);
- b43legacy_write16(dev, 0x0500, 0x0000);
- b43legacy_write16(dev, 0x0502, 0x0030);
-
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43legacy_radio_write16(dev, 0x0051, 0x0017);
- for (i = 0x00; i < max_loop; i++) {
- value = b43legacy_read16(dev, 0x050E);
- if (value & 0x0080)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43legacy_read16(dev, 0x050E);
- if (value & 0x0400)
- break;
- udelay(10);
- }
- for (i = 0x00; i < 0x0A; i++) {
- value = b43legacy_read16(dev, 0x0690);
- if (!(value & 0x0100))
- break;
- udelay(10);
- }
- if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
- b43legacy_radio_write16(dev, 0x0051, 0x0037);
-}
-
-/* Turn the Analog ON/OFF */
-static void b43legacy_switch_analog(struct b43legacy_wldev *dev, int on)
-{
- b43legacy_write16(dev, B43legacy_MMIO_PHY0, on ? 0 : 0xF4);
-}
-
-void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags)
-{
- u32 tmslow;
- u32 macctl;
-
- flags |= B43legacy_TMSLOW_PHYCLKEN;
- flags |= B43legacy_TMSLOW_PHYRESET;
- ssb_device_enable(dev->dev, flags);
- msleep(2); /* Wait for the PLL to turn on. */
-
- /* Now take the PHY out of Reset again */
- tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
- tmslow |= SSB_TMSLOW_FGC;
- tmslow &= ~B43legacy_TMSLOW_PHYRESET;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
- tmslow &= ~SSB_TMSLOW_FGC;
- ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
- ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
- msleep(1);
-
- /* Turn Analog ON */
- b43legacy_switch_analog(dev, 1);
-
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_GMODE;
- if (flags & B43legacy_TMSLOW_GMODE) {
- macctl |= B43legacy_MACCTL_GMODE;
- dev->phy.gmode = true;
- } else
- dev->phy.gmode = false;
- macctl |= B43legacy_MACCTL_IHR_ENABLED;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-}
-
-static void handle_irq_transmit_status(struct b43legacy_wldev *dev)
-{
- u32 v0;
- u32 v1;
- u16 tmp;
- struct b43legacy_txstatus stat;
-
- while (1) {
- v0 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
- if (!(v0 & 0x00000001))
- break;
- v1 = b43legacy_read32(dev, B43legacy_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);
-
- b43legacy_handle_txstatus(dev, &stat);
- }
-}
-
-static void drain_txstatus_queue(struct b43legacy_wldev *dev)
-{
- u32 dummy;
-
- if (dev->dev->id.revision < 5)
- return;
- /* Read all entries from the microcode TXstatus FIFO
- * and throw them away.
- */
- while (1) {
- dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
- if (!(dummy & 0x00000001))
- break;
- dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
- }
-}
-
-static u32 b43legacy_jssi_read(struct b43legacy_wldev *dev)
-{
- u32 val = 0;
-
- val = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x40A);
- val <<= 16;
- val |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x408);
-
- return val;
-}
-
-static void b43legacy_jssi_write(struct b43legacy_wldev *dev, u32 jssi)
-{
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x408,
- (jssi & 0x0000FFFF));
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x40A,
- (jssi & 0xFFFF0000) >> 16);
-}
-
-static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev)
-{
- b43legacy_jssi_write(dev, 0x7F7F7F7F);
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
- b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
- | B43legacy_MACCMD_BGNOISE);
- B43legacy_WARN_ON(dev->noisecalc.channel_at_start !=
- dev->phy.channel);
-}
-
-static void b43legacy_calculate_link_quality(struct b43legacy_wldev *dev)
-{
- /* Top half of Link Quality calculation. */
-
- if (dev->noisecalc.calculation_running)
- return;
- dev->noisecalc.channel_at_start = dev->phy.channel;
- dev->noisecalc.calculation_running = true;
- dev->noisecalc.nr_samples = 0;
-
- b43legacy_generate_noise_sample(dev);
-}
-
-static void handle_irq_noise(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u16 tmp;
- u8 noise[4];
- u8 i;
- u8 j;
- s32 average;
-
- /* Bottom half of Link Quality calculation. */
-
- B43legacy_WARN_ON(!dev->noisecalc.calculation_running);
- if (dev->noisecalc.channel_at_start != phy->channel)
- goto drop_calculation;
- *((__le32 *)noise) = cpu_to_le32(b43legacy_jssi_read(dev));
- if (noise[0] == 0x7F || noise[1] == 0x7F ||
- noise[2] == 0x7F || noise[3] == 0x7F)
- goto generate_new;
-
- /* Get the noise samples. */
- B43legacy_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 = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x40C);
- tmp = (tmp / 128) & 0x1F;
- if (tmp >= 8)
- average += 2;
- else
- average -= 25;
- if (tmp == 8)
- average -= 72;
- else
- average -= 48;
-
- dev->stats.link_noise = average;
-drop_calculation:
- dev->noisecalc.calculation_running = false;
- return;
- }
-generate_new:
- b43legacy_generate_noise_sample(dev);
-}
-
-static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev)
-{
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
- /* TODO: PS TBTT */
- } else {
- if (1/*FIXME: the last PSpoll frame was sent successfully */)
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
- }
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
- dev->dfq_valid = true;
-}
-
-static void handle_irq_atim_end(struct b43legacy_wldev *dev)
-{
- if (dev->dfq_valid) {
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
- b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
- | B43legacy_MACCMD_DFQ_VALID);
- dev->dfq_valid = false;
- }
-}
-
-static void handle_irq_pmq(struct b43legacy_wldev *dev)
-{
- u32 tmp;
-
- /* TODO: AP mode. */
-
- while (1) {
- tmp = b43legacy_read32(dev, B43legacy_MMIO_PS_STATUS);
- if (!(tmp & 0x00000008))
- break;
- }
- /* 16bit write is odd, but correct. */
- b43legacy_write16(dev, B43legacy_MMIO_PS_STATUS, 0x0002);
-}
-
-static void b43legacy_write_template_common(struct b43legacy_wldev *dev,
- const u8 *data, u16 size,
- u16 ram_offset,
- u16 shm_size_offset, u8 rate)
-{
- u32 i;
- u32 tmp;
- struct b43legacy_plcp_hdr4 plcp;
-
- plcp.data = 0;
- b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
- b43legacy_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;
- b43legacy_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;
- b43legacy_ram_write(dev, ram_offset + i - 2, tmp);
- }
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_size_offset,
- size + sizeof(struct b43legacy_plcp_hdr6));
-}
-
-/* Convert a b43legacy antenna number value to the PHY TX control value. */
-static u16 b43legacy_antenna_to_phyctl(int antenna)
-{
- switch (antenna) {
- case B43legacy_ANTENNA0:
- return B43legacy_TX4_PHY_ANT0;
- case B43legacy_ANTENNA1:
- return B43legacy_TX4_PHY_ANT1;
- }
- return B43legacy_TX4_PHY_ANTLAST;
-}
-
-static void b43legacy_write_beacon_template(struct b43legacy_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 = IEEE80211_SKB_CB(dev->wl->current_beacon);
-
- bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
- len = min_t(size_t, dev->wl->current_beacon->len,
- 0x200 - sizeof(struct b43legacy_plcp_hdr6));
- rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
-
- b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset,
- shm_size_offset, rate);
-
- /* Write the PHY TX control parameters. */
- antenna = B43legacy_ANTENNA_DEFAULT;
- antenna = b43legacy_antenna_to_phyctl(antenna);
- ctl = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL);
- /* We can't send beacons with short preamble. Would get PHY errors. */
- ctl &= ~B43legacy_TX4_PHY_SHORTPRMBL;
- ctl &= ~B43legacy_TX4_PHY_ANT;
- ctl &= ~B43legacy_TX4_PHY_ENC;
- ctl |= antenna;
- ctl |= B43legacy_TX4_PHY_ENC_CCK;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_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 b43legacy_plcp_hdr6);
- tim_position += offsetof(struct ieee80211_mgmt,
- u.beacon.variable);
- tim_position += i;
-
- dtim_period = ie[i + 3];
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_TIMPOS, tim_position);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_DTIMP, dtim_period);
- break;
- }
- i += ie_len + 2;
- }
- if (!tim_found) {
- b43legacywarn(dev->wl, "Did not find a valid TIM IE in the "
- "beacon template packet. AP or IBSS operation "
- "may be broken.\n");
- } else
- b43legacydbg(dev->wl, "Updated beacon template\n");
-}
-
-static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
- u16 shm_offset, u16 size,
- struct ieee80211_rate *rate)
-{
- struct b43legacy_plcp_hdr4 plcp;
- u32 tmp;
- __le16 dur;
-
- plcp.data = 0;
- b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif,
- IEEE80211_BAND_2GHZ,
- size,
- rate);
- /* Write PLCP in two parts and timing for packet transfer */
- tmp = le32_to_cpu(plcp.data);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset,
- tmp & 0xFFFF);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 2,
- tmp >> 16);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 6,
- le16_to_cpu(dur));
-}
-
-/* Instead of using custom probe response template, this function
- * just patches custom beacon template by:
- * 1) Changing packet type
- * 2) Patching duration field
- * 3) Stripping TIM
- */
-static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
- u16 *dest_size,
- struct ieee80211_rate *rate)
-{
- const u8 *src_data;
- u8 *dest_data;
- u16 src_size, elem_size, src_pos, dest_pos;
- __le16 dur;
- struct ieee80211_hdr *hdr;
- size_t ie_start;
-
- src_size = dev->wl->current_beacon->len;
- src_data = (const u8 *)dev->wl->current_beacon->data;
-
- /* Get the start offset of the variable IEs in the packet. */
- ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
- B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt,
- u.beacon.variable));
-
- if (B43legacy_WARN_ON(src_size < ie_start))
- return NULL;
-
- dest_data = kmalloc(src_size, GFP_ATOMIC);
- if (unlikely(!dest_data))
- return NULL;
-
- /* Copy the static data and all Information Elements, except the TIM. */
- memcpy(dest_data, src_data, ie_start);
- src_pos = ie_start;
- dest_pos = ie_start;
- for ( ; src_pos < src_size - 2; src_pos += elem_size) {
- elem_size = src_data[src_pos + 1] + 2;
- if (src_data[src_pos] == 5) {
- /* This is the TIM. */
- continue;
- }
- memcpy(dest_data + dest_pos, src_data + src_pos, elem_size);
- dest_pos += elem_size;
- }
- *dest_size = dest_pos;
- hdr = (struct ieee80211_hdr *)dest_data;
-
- /* Set the frame control. */
- hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_PROBE_RESP);
- dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->vif,
- IEEE80211_BAND_2GHZ,
- *dest_size,
- rate);
- hdr->duration_id = dur;
-
- return dest_data;
-}
-
-static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
- u16 ram_offset,
- u16 shm_size_offset,
- struct ieee80211_rate *rate)
-{
- const u8 *probe_resp_data;
- u16 size;
-
- size = dev->wl->current_beacon->len;
- probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate);
- if (unlikely(!probe_resp_data))
- return;
-
- /* Looks like PLCP headers plus packet timings are stored for
- * all possible basic rates
- */
- b43legacy_write_probe_resp_plcp(dev, 0x31A, size,
- &b43legacy_b_ratetable[0]);
- b43legacy_write_probe_resp_plcp(dev, 0x32C, size,
- &b43legacy_b_ratetable[1]);
- b43legacy_write_probe_resp_plcp(dev, 0x33E, size,
- &b43legacy_b_ratetable[2]);
- b43legacy_write_probe_resp_plcp(dev, 0x350, size,
- &b43legacy_b_ratetable[3]);
-
- size = min_t(size_t, size,
- 0x200 - sizeof(struct b43legacy_plcp_hdr6));
- b43legacy_write_template_common(dev, probe_resp_data,
- size, ram_offset,
- shm_size_offset, rate->hw_value);
- kfree(probe_resp_data);
-}
-
-static void b43legacy_upload_beacon0(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
-
- if (wl->beacon0_uploaded)
- return;
- b43legacy_write_beacon_template(dev, 0x68, 0x18);
- /* FIXME: Probe resp upload doesn't really belong here,
- * but we don't use that feature anyway. */
- b43legacy_write_probe_resp_template(dev, 0x268, 0x4A,
- &__b43legacy_ratetable[3]);
- wl->beacon0_uploaded = true;
-}
-
-static void b43legacy_upload_beacon1(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
-
- if (wl->beacon1_uploaded)
- return;
- b43legacy_write_beacon_template(dev, 0x468, 0x1A);
- wl->beacon1_uploaded = true;
-}
-
-static void handle_irq_beacon(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- u32 cmd, beacon0_valid, beacon1_valid;
-
- if (!b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
- return;
-
- /* This is the bottom half of the asynchronous beacon update. */
-
- /* Ignore interrupt in the future. */
- dev->irq_mask &= ~B43legacy_IRQ_BEACON;
-
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- beacon0_valid = (cmd & B43legacy_MACCMD_BEACON0_VALID);
- beacon1_valid = (cmd & B43legacy_MACCMD_BEACON1_VALID);
-
- /* Schedule interrupt manually, if busy. */
- if (beacon0_valid && beacon1_valid) {
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, B43legacy_IRQ_BEACON);
- dev->irq_mask |= B43legacy_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;
- b43legacy_upload_beacon0(dev);
- b43legacy_upload_beacon1(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON0_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- } else {
- if (!beacon0_valid) {
- b43legacy_upload_beacon0(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON0_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- } else if (!beacon1_valid) {
- b43legacy_upload_beacon1(dev);
- cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
- cmd |= B43legacy_MACCMD_BEACON1_VALID;
- b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
- }
- }
-}
-
-static void b43legacy_beacon_update_trigger_work(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
- beacon_update_trigger);
- struct b43legacy_wldev *dev;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (likely(dev && (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED))) {
- spin_lock_irq(&wl->irq_lock);
- /* Update beacon right away or defer to IRQ. */
- handle_irq_beacon(dev);
- /* The handler might have updated the IRQ mask. */
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
- dev->irq_mask);
- mmiowb();
- spin_unlock_irq(&wl->irq_lock);
- }
- mutex_unlock(&wl->mutex);
-}
-
-/* Asynchronously update the packet templates in template RAM.
- * Locking: Requires wl->irq_lock to be locked. */
-static void b43legacy_update_templates(struct b43legacy_wl *wl)
-{
- struct sk_buff *beacon;
- /* This is the top half of the ansynchronous 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;
-
- if (wl->current_beacon)
- dev_kfree_skb_any(wl->current_beacon);
- wl->current_beacon = beacon;
- wl->beacon0_uploaded = false;
- wl->beacon1_uploaded = false;
- ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
-}
-
-static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev,
- u16 beacon_int)
-{
- b43legacy_time_lock(dev);
- if (dev->dev->id.revision >= 3) {
- b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_REP,
- (beacon_int << 16));
- b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_START,
- (beacon_int << 10));
- } else {
- b43legacy_write16(dev, 0x606, (beacon_int >> 6));
- b43legacy_write16(dev, 0x610, beacon_int);
- }
- b43legacy_time_unlock(dev);
- b43legacydbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
-}
-
-static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
-{
-}
-
-/* Interrupt handler bottom-half */
-static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
-{
- u32 reason;
- u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
- u32 merged_dma_reason = 0;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&dev->wl->irq_lock, flags);
-
- B43legacy_WARN_ON(b43legacy_status(dev) <
- B43legacy_STAT_INITIALIZED);
-
- 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 & B43legacy_IRQ_MAC_TXERR))
- b43legacyerr(dev->wl, "MAC transmission error\n");
-
- if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) {
- b43legacyerr(dev->wl, "PHY transmission error\n");
- rmb();
- if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
- b43legacyerr(dev->wl, "Too many PHY TX errors, "
- "restarting the controller\n");
- b43legacy_controller_restart(dev, "PHY TX errors");
- }
- }
-
- if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK |
- B43legacy_DMAIRQ_NONFATALMASK))) {
- if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) {
- b43legacyerr(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]);
- b43legacy_controller_restart(dev, "DMA error");
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
- return;
- }
- if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK)
- b43legacyerr(dev->wl, "DMA error: "
- "0x%08X, 0x%08X, 0x%08X, "
- "0x%08X, 0x%08X, 0x%08X\n",
- dma_reason[0], dma_reason[1],
- dma_reason[2], dma_reason[3],
- dma_reason[4], dma_reason[5]);
- }
-
- if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG))
- handle_irq_ucode_debug(dev);
- if (reason & B43legacy_IRQ_TBTT_INDI)
- handle_irq_tbtt_indication(dev);
- if (reason & B43legacy_IRQ_ATIM_END)
- handle_irq_atim_end(dev);
- if (reason & B43legacy_IRQ_BEACON)
- handle_irq_beacon(dev);
- if (reason & B43legacy_IRQ_PMQ)
- handle_irq_pmq(dev);
- if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK)
- ;/*TODO*/
- if (reason & B43legacy_IRQ_NOISESAMPLE_OK)
- handle_irq_noise(dev);
-
- /* Check the DMA reason registers for received data. */
- if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) {
- if (b43legacy_using_pio(dev))
- b43legacy_pio_rx(dev->pio.queue0);
- else
- b43legacy_dma_rx(dev->dma.rx_ring0);
- }
- B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE);
- B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE);
- if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) {
- if (b43legacy_using_pio(dev))
- b43legacy_pio_rx(dev->pio.queue3);
- else
- b43legacy_dma_rx(dev->dma.rx_ring3);
- }
- B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE);
- B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE);
-
- if (reason & B43legacy_IRQ_TX_OK)
- handle_irq_transmit_status(dev);
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- mmiowb();
- spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
-}
-
-static void pio_irq_workaround(struct b43legacy_wldev *dev,
- u16 base, int queueidx)
-{
- u16 rxctl;
-
- rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL);
- if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE)
- dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE;
- else
- dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE;
-}
-
-static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason)
-{
- if (b43legacy_using_pio(dev) &&
- (dev->dev->id.revision < 3) &&
- (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) {
- /* Apply a PIO specific workaround to the dma_reasons */
- pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2);
- pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3);
- }
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason);
-
- b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON,
- dev->dma_reason[0]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON,
- dev->dma_reason[1]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON,
- dev->dma_reason[2]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON,
- dev->dma_reason[3]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON,
- dev->dma_reason[4]);
- b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON,
- dev->dma_reason[5]);
-}
-
-/* Interrupt handler top-half */
-static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id)
-{
- irqreturn_t ret = IRQ_NONE;
- struct b43legacy_wldev *dev = dev_id;
- u32 reason;
-
- B43legacy_WARN_ON(!dev);
-
- spin_lock(&dev->wl->irq_lock);
-
- if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED))
- /* This can only happen on shared IRQ lines. */
- goto out;
- reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (reason == 0xffffffff) /* shared IRQ */
- goto out;
- ret = IRQ_HANDLED;
- reason &= dev->irq_mask;
- if (!reason)
- goto out;
-
- dev->dma_reason[0] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA0_REASON)
- & 0x0001DC00;
- dev->dma_reason[1] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA1_REASON)
- & 0x0000DC00;
- dev->dma_reason[2] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA2_REASON)
- & 0x0000DC00;
- dev->dma_reason[3] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA3_REASON)
- & 0x0001DC00;
- dev->dma_reason[4] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA4_REASON)
- & 0x0000DC00;
- dev->dma_reason[5] = b43legacy_read32(dev,
- B43legacy_MMIO_DMA5_REASON)
- & 0x0000DC00;
-
- b43legacy_interrupt_ack(dev, reason);
- /* Disable all IRQs. They are enabled again in the bottom half. */
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- /* Save the reason code and call our bottom half. */
- dev->irq_reason = reason;
- tasklet_schedule(&dev->isr_tasklet);
-out:
- mmiowb();
- spin_unlock(&dev->wl->irq_lock);
-
- return ret;
-}
-
-static void b43legacy_release_firmware(struct b43legacy_wldev *dev)
-{
- release_firmware(dev->fw.ucode);
- dev->fw.ucode = NULL;
- release_firmware(dev->fw.pcm);
- dev->fw.pcm = NULL;
- release_firmware(dev->fw.initvals);
- dev->fw.initvals = NULL;
- release_firmware(dev->fw.initvals_band);
- dev->fw.initvals_band = NULL;
-}
-
-static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl)
-{
- b43legacyerr(wl, "You must go to http://wireless.kernel.org/en/users/"
- "Drivers/b43#devicefirmware "
- "and download the correct firmware (version 3).\n");
-}
-
-static void b43legacy_fw_cb(const struct firmware *firmware, void *context)
-{
- struct b43legacy_wldev *dev = context;
-
- dev->fwp = firmware;
- complete(&dev->fw_load_complete);
-}
-
-static int do_request_fw(struct b43legacy_wldev *dev,
- const char *name,
- const struct firmware **fw, bool async)
-{
- char path[sizeof(modparam_fwpostfix) + 32];
- struct b43legacy_fw_header *hdr;
- u32 size;
- int err;
-
- if (!name)
- return 0;
-
- snprintf(path, ARRAY_SIZE(path),
- "b43legacy%s/%s.fw",
- modparam_fwpostfix, name);
- b43legacyinfo(dev->wl, "Loading firmware %s\n", path);
- if (async) {
- init_completion(&dev->fw_load_complete);
- err = request_firmware_nowait(THIS_MODULE, 1, path,
- dev->dev->dev, GFP_KERNEL,
- dev, b43legacy_fw_cb);
- if (err) {
- b43legacyerr(dev->wl, "Unable to load firmware\n");
- return err;
- }
- /* stall here until fw ready */
- wait_for_completion(&dev->fw_load_complete);
- if (!dev->fwp)
- err = -EINVAL;
- *fw = dev->fwp;
- } else {
- err = request_firmware(fw, path, dev->dev->dev);
- }
- if (err) {
- b43legacyerr(dev->wl, "Firmware file \"%s\" not found "
- "or load failed.\n", path);
- return err;
- }
- if ((*fw)->size < sizeof(struct b43legacy_fw_header))
- goto err_format;
- hdr = (struct b43legacy_fw_header *)((*fw)->data);
- switch (hdr->type) {
- case B43legacy_FW_TYPE_UCODE:
- case B43legacy_FW_TYPE_PCM:
- size = be32_to_cpu(hdr->size);
- if (size != (*fw)->size - sizeof(struct b43legacy_fw_header))
- goto err_format;
- /* fallthrough */
- case B43legacy_FW_TYPE_IV:
- if (hdr->ver != 1)
- goto err_format;
- break;
- default:
- goto err_format;
- }
-
- return err;
-
-err_format:
- b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path);
- return -EPROTO;
-}
-
-static int b43legacy_one_core_attach(struct ssb_device *dev,
- struct b43legacy_wl *wl);
-static void b43legacy_one_core_detach(struct ssb_device *dev);
-
-static void b43legacy_request_firmware(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work,
- struct b43legacy_wl, firmware_load);
- struct b43legacy_wldev *dev = wl->current_dev;
- struct b43legacy_firmware *fw = &dev->fw;
- const u8 rev = dev->dev->id.revision;
- const char *filename;
- int err;
-
- if (!fw->ucode) {
- if (rev == 2)
- filename = "ucode2";
- else if (rev == 4)
- filename = "ucode4";
- else
- filename = "ucode5";
- err = do_request_fw(dev, filename, &fw->ucode, true);
- if (err)
- goto err_load;
- }
- if (!fw->pcm) {
- if (rev < 5)
- filename = "pcm4";
- else
- filename = "pcm5";
- err = do_request_fw(dev, filename, &fw->pcm, false);
- if (err)
- goto err_load;
- }
- if (!fw->initvals) {
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0initvals5";
- else if (rev == 2 || rev == 4)
- filename = "b0g0initvals2";
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals, false);
- if (err)
- goto err_load;
- }
- if (!fw->initvals_band) {
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- case B43legacy_PHYTYPE_G:
- if ((rev >= 5) && (rev <= 10))
- filename = "b0g0bsinitvals5";
- else if (rev >= 11)
- filename = NULL;
- else if (rev == 2 || rev == 4)
- filename = NULL;
- else
- goto err_no_initvals;
- break;
- default:
- goto err_no_initvals;
- }
- err = do_request_fw(dev, filename, &fw->initvals_band, false);
- if (err)
- goto err_load;
- }
- err = ieee80211_register_hw(wl->hw);
- if (err)
- goto err_one_core_detach;
- return;
-
-err_one_core_detach:
- b43legacy_one_core_detach(dev->dev);
- goto error;
-
-err_load:
- b43legacy_print_fw_helptext(dev->wl);
- goto error;
-
-err_no_initvals:
- err = -ENODEV;
- b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, "
- "core rev %u\n", dev->phy.type, rev);
- goto error;
-
-error:
- b43legacy_release_firmware(dev);
- return;
-}
-
-static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
-{
- struct wiphy *wiphy = dev->wl->hw->wiphy;
- const size_t hdr_len = sizeof(struct b43legacy_fw_header);
- const __be32 *data;
- unsigned int i;
- unsigned int len;
- u16 fwrev;
- u16 fwpatch;
- u16 fwdate;
- u16 fwtime;
- u32 tmp, macctl;
- int err = 0;
-
- /* Jump the microcode PSM to offset 0 */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN);
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
- /* Zero out all microcode PSM registers and shared memory. */
- for (i = 0; i < 64; i++)
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0);
- for (i = 0; i < 4096; i += 2)
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0);
-
- /* Upload Microcode. */
- data = (__be32 *) (dev->fw.ucode->data + hdr_len);
- len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32);
- b43legacy_shm_control_word(dev,
- B43legacy_SHM_UCODE |
- B43legacy_SHM_AUTOINC_W,
- 0x0000);
- for (i = 0; i < len; i++) {
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
- be32_to_cpu(data[i]));
- udelay(10);
- }
-
- if (dev->fw.pcm) {
- /* Upload PCM data. */
- data = (__be32 *) (dev->fw.pcm->data + hdr_len);
- len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32);
- b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA);
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000);
- /* No need for autoinc bit in SHM_HW */
- b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB);
- for (i = 0; i < len; i++) {
- b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
- be32_to_cpu(data[i]));
- udelay(10);
- }
- }
-
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
- B43legacy_IRQ_ALL);
-
- /* Start the microcode PSM */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_JMP0;
- macctl |= B43legacy_MACCTL_PSM_RUN;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- /* Wait for the microcode to load and respond */
- i = 0;
- while (1) {
- tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (tmp == B43legacy_IRQ_MAC_SUSPENDED)
- break;
- i++;
- if (i >= B43legacy_IRQWAIT_MAX_RETRIES) {
- b43legacyerr(dev->wl, "Microcode not responding\n");
- b43legacy_print_fw_helptext(dev->wl);
- err = -ENODEV;
- goto error;
- }
- msleep_interruptible(50);
- if (signal_pending(current)) {
- err = -EINTR;
- goto error;
- }
- }
- /* dummy read follows */
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
-
- /* Get and check the revisions. */
- fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEREV);
- fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEPATCH);
- fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODEDATE);
- fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_UCODETIME);
-
- if (fwrev > 0x128) {
- b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
- " Only firmware from binary drivers version 3.x"
- " is supported. You must change your firmware"
- " files.\n");
- b43legacy_print_fw_helptext(dev->wl);
- err = -EOPNOTSUPP;
- goto error;
- }
- b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
- "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
- (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
- (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
- fwtime & 0x1F);
-
- dev->fw.rev = fwrev;
- dev->fw.patch = fwpatch;
-
- snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
- dev->fw.rev, dev->fw.patch);
- wiphy->hw_version = dev->dev->id.coreid;
-
- return 0;
-
-error:
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_RUN;
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- return err;
-}
-
-static int b43legacy_write_initvals(struct b43legacy_wldev *dev,
- const struct b43legacy_iv *ivals,
- size_t count,
- size_t array_size)
-{
- const struct b43legacy_iv *iv;
- u16 offset;
- size_t i;
- bool bit32;
-
- BUILD_BUG_ON(sizeof(struct b43legacy_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 & B43legacy_IV_32BIT);
- offset &= B43legacy_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);
- b43legacy_write32(dev, offset, value);
-
- iv = (const struct b43legacy_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);
- b43legacy_write16(dev, offset, value);
-
- iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
- sizeof(__be16) +
- sizeof(__be16));
- }
- }
- if (array_size)
- goto err_format;
-
- return 0;
-
-err_format:
- b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n");
- b43legacy_print_fw_helptext(dev->wl);
-
- return -EPROTO;
-}
-
-static int b43legacy_upload_initvals(struct b43legacy_wldev *dev)
-{
- const size_t hdr_len = sizeof(struct b43legacy_fw_header);
- const struct b43legacy_fw_header *hdr;
- struct b43legacy_firmware *fw = &dev->fw;
- const struct b43legacy_iv *ivals;
- size_t count;
- int err;
-
- hdr = (const struct b43legacy_fw_header *)(fw->initvals->data);
- ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43legacy_write_initvals(dev, ivals, count,
- fw->initvals->size - hdr_len);
- if (err)
- goto out;
- if (fw->initvals_band) {
- hdr = (const struct b43legacy_fw_header *)
- (fw->initvals_band->data);
- ivals = (const struct b43legacy_iv *)(fw->initvals_band->data
- + hdr_len);
- count = be32_to_cpu(hdr->size);
- err = b43legacy_write_initvals(dev, ivals, count,
- fw->initvals_band->size - hdr_len);
- if (err)
- goto out;
- }
-out:
-
- return err;
-}
-
-/* Initialize the GPIOs
- * http://bcm-specs.sipsolutions.net/GPIO
- */
-static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
- u32 mask;
- u32 set;
-
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- & 0xFFFF3FFF);
-
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
- b43legacy_read16(dev,
- B43legacy_MMIO_GPIO_MASK)
- | 0x000F);
-
- mask = 0x0000001F;
- set = 0x0000000F;
- if (dev->dev->bus->chip_id == 0x4301) {
- mask |= 0x0060;
- set |= 0x0060;
- }
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) {
- b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
- b43legacy_read16(dev,
- B43legacy_MMIO_GPIO_MASK)
- | 0x0200);
- mask |= 0x0200;
- set |= 0x0200;
- }
- if (dev->dev->id.revision >= 2)
- mask |= 0x0010; /* FIXME: This is redundant. */
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return 0;
- ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
- (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
- & ~mask) | set);
-
- return 0;
-}
-
-/* Turn off all GPIO stuff. Call this on module unload, for example. */
-static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev)
-{
- struct ssb_bus *bus = dev->dev->bus;
- struct ssb_device *gpiodev, *pcidev = NULL;
-
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- pcidev = bus->pcicore.dev;
-#endif
- gpiodev = bus->chipco.dev ? : pcidev;
- if (!gpiodev)
- return;
- ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0);
-}
-
-/* http://bcm-specs.sipsolutions.net/EnableMac */
-void b43legacy_mac_enable(struct b43legacy_wldev *dev)
-{
- dev->mac_suspended--;
- B43legacy_WARN_ON(dev->mac_suspended < 0);
- B43legacy_WARN_ON(irqs_disabled());
- if (dev->mac_suspended == 0) {
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- | B43legacy_MACCTL_ENABLED);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
- B43legacy_IRQ_MAC_SUSPENDED);
- /* the next two are dummy reads */
- b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- b43legacy_power_saving_ctl_bits(dev, -1, -1);
-
- /* Re-enable IRQs. */
- spin_lock_irq(&dev->wl->irq_lock);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
- dev->irq_mask);
- spin_unlock_irq(&dev->wl->irq_lock);
- }
-}
-
-/* http://bcm-specs.sipsolutions.net/SuspendMAC */
-void b43legacy_mac_suspend(struct b43legacy_wldev *dev)
-{
- int i;
- u32 tmp;
-
- might_sleep();
- B43legacy_WARN_ON(irqs_disabled());
- B43legacy_WARN_ON(dev->mac_suspended < 0);
-
- if (dev->mac_suspended == 0) {
- /* Mask IRQs before suspending MAC. Otherwise
- * the MAC stays busy and won't suspend. */
- spin_lock_irq(&dev->wl->irq_lock);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- spin_unlock_irq(&dev->wl->irq_lock);
- b43legacy_synchronize_irq(dev);
-
- b43legacy_power_saving_ctl_bits(dev, -1, 1);
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
- b43legacy_read32(dev,
- B43legacy_MMIO_MACCTL)
- & ~B43legacy_MACCTL_ENABLED);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- for (i = 40; i; i--) {
- tmp = b43legacy_read32(dev,
- B43legacy_MMIO_GEN_IRQ_REASON);
- if (tmp & B43legacy_IRQ_MAC_SUSPENDED)
- goto out;
- msleep(1);
- }
- b43legacyerr(dev->wl, "MAC suspend failed\n");
- }
-out:
- dev->mac_suspended++;
-}
-
-static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- u32 ctl;
- u16 cfp_pretbtt;
-
- ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- /* Reset status to STA infrastructure mode. */
- ctl &= ~B43legacy_MACCTL_AP;
- ctl &= ~B43legacy_MACCTL_KEEP_CTL;
- ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP;
- ctl &= ~B43legacy_MACCTL_KEEP_BAD;
- ctl &= ~B43legacy_MACCTL_PROMISC;
- ctl &= ~B43legacy_MACCTL_BEACPROMISC;
- ctl |= B43legacy_MACCTL_INFRA;
-
- if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
- ctl |= B43legacy_MACCTL_AP;
- else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))
- ctl &= ~B43legacy_MACCTL_INFRA;
-
- if (wl->filter_flags & FIF_CONTROL)
- ctl |= B43legacy_MACCTL_KEEP_CTL;
- if (wl->filter_flags & FIF_FCSFAIL)
- ctl |= B43legacy_MACCTL_KEEP_BAD;
- if (wl->filter_flags & FIF_PLCPFAIL)
- ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
- if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
- ctl |= B43legacy_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->id.revision <= 4)
- ctl |= B43legacy_MACCTL_PROMISC;
-
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl);
-
- cfp_pretbtt = 2;
- if ((ctl & B43legacy_MACCTL_INFRA) &&
- !(ctl & B43legacy_MACCTL_AP)) {
- if (dev->dev->bus->chip_id == 0x4306 &&
- dev->dev->bus->chip_rev == 3)
- cfp_pretbtt = 100;
- else
- cfp_pretbtt = 50;
- }
- b43legacy_write16(dev, 0x612, cfp_pretbtt);
-}
-
-static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev,
- u16 rate,
- int is_ofdm)
-{
- u16 offset;
-
- if (is_ofdm) {
- offset = 0x480;
- offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
- } else {
- offset = 0x4C0;
- offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
- }
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20,
- b43legacy_shm_read16(dev,
- B43legacy_SHM_SHARED, offset));
-}
-
-static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev)
-{
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_G:
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1);
- b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1);
- /* fallthrough */
- case B43legacy_PHYTYPE_B:
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0);
- b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0);
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-}
-
-/* Set the TX-Antenna for management frames sent by firmware. */
-static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev,
- int antenna)
-{
- u16 ant = 0;
- u16 tmp;
-
- switch (antenna) {
- case B43legacy_ANTENNA0:
- ant |= B43legacy_TX4_PHY_ANT0;
- break;
- case B43legacy_ANTENNA1:
- ant |= B43legacy_TX4_PHY_ANT1;
- break;
- case B43legacy_ANTENNA_AUTO:
- ant |= B43legacy_TX4_PHY_ANTLAST;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
-
- /* FIXME We also need to set the other flags of the PHY control
- * field somewhere. */
-
- /* For Beacons */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_BEACPHYCTL, tmp);
- /* For ACK/CTS */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_ACKCTSPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_ACKCTSPHYCTL, tmp);
- /* For Probe Resposes */
- tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRPHYCTL);
- tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRPHYCTL, tmp);
-}
-
-/* This is the opposite of b43legacy_chip_init() */
-static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
-{
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_gpio_cleanup(dev);
- /* firmware is released later */
-}
-
-/* Initialize the chip
- * http://bcm-specs.sipsolutions.net/ChipInit
- */
-static int b43legacy_chip_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int err;
- int tmp;
- u32 value32, macctl;
- u16 value16;
-
- /* Initialize the MAC control */
- macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED;
- if (dev->phy.gmode)
- macctl |= B43legacy_MACCTL_GMODE;
- macctl |= B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- err = b43legacy_upload_microcode(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43legacy_gpio_init(dev);
- if (err)
- goto out; /* firmware is released later */
-
- err = b43legacy_upload_initvals(dev);
- if (err)
- goto err_gpio_clean;
- b43legacy_radio_turn_on(dev);
-
- b43legacy_write16(dev, 0x03E6, 0x0000);
- err = b43legacy_phy_init(dev);
- if (err)
- goto err_radio_off;
-
- /* Select initial Interference Mitigation. */
- tmp = phy->interfmode;
- phy->interfmode = B43legacy_INTERFMODE_NONE;
- b43legacy_radio_set_interference_mitigation(dev, tmp);
-
- b43legacy_phy_set_antenna_diversity(dev);
- b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT);
-
- if (phy->type == B43legacy_PHYTYPE_B) {
- value16 = b43legacy_read16(dev, 0x005E);
- value16 |= 0x0004;
- b43legacy_write16(dev, 0x005E, value16);
- }
- b43legacy_write32(dev, 0x0100, 0x01000000);
- if (dev->dev->id.revision < 5)
- b43legacy_write32(dev, 0x010C, 0x01000000);
-
- value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- value32 &= ~B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
- value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- value32 |= B43legacy_MACCTL_INFRA;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
-
- if (b43legacy_using_pio(dev)) {
- b43legacy_write32(dev, 0x0210, 0x00000100);
- b43legacy_write32(dev, 0x0230, 0x00000100);
- b43legacy_write32(dev, 0x0250, 0x00000100);
- b43legacy_write32(dev, 0x0270, 0x00000100);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034,
- 0x0000);
- }
-
- /* Probe Response Timeout value */
- /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000);
-
- /* Initially set the wireless operation mode. */
- b43legacy_adjust_opmode(dev);
-
- if (dev->dev->id.revision < 3) {
- b43legacy_write16(dev, 0x060E, 0x0000);
- b43legacy_write16(dev, 0x0610, 0x8000);
- b43legacy_write16(dev, 0x0604, 0x0000);
- b43legacy_write16(dev, 0x0606, 0x0200);
- } else {
- b43legacy_write32(dev, 0x0188, 0x80000000);
- b43legacy_write32(dev, 0x018C, 0x02000000);
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000);
- b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
- b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
-
- value32 = ssb_read32(dev->dev, SSB_TMSLOW);
- value32 |= B43legacy_TMSLOW_MACPHYCLKEN;
- ssb_write32(dev->dev, SSB_TMSLOW, value32);
-
- b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY,
- dev->dev->bus->chipco.fast_pwrup_delay);
-
- /* PHY TX errors counter. */
- atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
-
- B43legacy_WARN_ON(err != 0);
- b43legacydbg(dev->wl, "Chip initialized\n");
-out:
- return err;
-
-err_radio_off:
- b43legacy_radio_turn_off(dev, 1);
-err_gpio_clean:
- b43legacy_gpio_cleanup(dev);
- goto out;
-}
-
-static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
-
- if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2)
- return;
-
- b43legacy_mac_suspend(dev);
- b43legacy_phy_lo_g_measure(dev);
- b43legacy_mac_enable(dev);
-}
-
-static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev)
-{
- b43legacy_phy_lo_mark_all_unused(dev);
- if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
- b43legacy_mac_suspend(dev);
- b43legacy_calc_nrssi_slope(dev);
- b43legacy_mac_enable(dev);
- }
-}
-
-static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev)
-{
- /* Update device statistics. */
- b43legacy_calculate_link_quality(dev);
-}
-
-static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev)
-{
- b43legacy_phy_xmitpower(dev); /* FIXME: unless scanning? */
-
- atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
- wmb();
-}
-
-static void do_periodic_work(struct b43legacy_wldev *dev)
-{
- unsigned int state;
-
- state = dev->periodic_state;
- if (state % 8 == 0)
- b43legacy_periodic_every120sec(dev);
- if (state % 4 == 0)
- b43legacy_periodic_every60sec(dev);
- if (state % 2 == 0)
- b43legacy_periodic_every30sec(dev);
- b43legacy_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 b43legacy_periodic_work_handler(struct work_struct *work)
-{
- struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev,
- periodic_work.work);
- struct b43legacy_wl *wl = dev->wl;
- unsigned long delay;
-
- mutex_lock(&wl->mutex);
-
- if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED))
- goto out;
- if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP))
- goto out_requeue;
-
- do_periodic_work(dev);
-
- dev->periodic_state++;
-out_requeue:
- if (b43legacy_debug(dev, B43legacy_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 b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev)
-{
- struct delayed_work *work = &dev->periodic_work;
-
- dev->periodic_state = 0;
- INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler);
- ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
-}
-
-/* Validate access to the chip (SHM) */
-static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev)
-{
- u32 value;
- u32 shm_backup;
-
- shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0);
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA);
- if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
- 0xAA5555AA)
- goto error;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55);
- if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
- 0x55AAAA55)
- goto error;
- b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup);
-
- value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- if ((value | B43legacy_MACCTL_GMODE) !=
- (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED))
- goto error;
-
- value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
- if (value)
- goto error;
-
- return 0;
-error:
- b43legacyerr(dev->wl, "Failed to validate the chipaccess\n");
- return -ENODEV;
-}
-
-static void b43legacy_security_init(struct b43legacy_wldev *dev)
-{
- dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
- B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
- dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- 0x0056);
- /* KTP is a word address, but we address SHM bytewise.
- * So multiply by two.
- */
- dev->ktp *= 2;
- if (dev->dev->id.revision >= 5)
- /* Number of RCMTA address slots */
- b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT,
- dev->max_nr_keys - 8);
-}
-
-#ifdef CONFIG_B43LEGACY_HWRNG
-static int b43legacy_rng_read(struct hwrng *rng, u32 *data)
-{
- struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv;
- unsigned long flags;
-
- /* Don't take wl->mutex here, as it could deadlock with
- * hwrng internal locking. It's not needed to take
- * wl->mutex here, anyway. */
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return (sizeof(u16));
-}
-#endif
-
-static void b43legacy_rng_exit(struct b43legacy_wl *wl)
-{
-#ifdef CONFIG_B43LEGACY_HWRNG
- if (wl->rng_initialized)
- hwrng_unregister(&wl->rng);
-#endif
-}
-
-static int b43legacy_rng_init(struct b43legacy_wl *wl)
-{
- int err = 0;
-
-#ifdef CONFIG_B43LEGACY_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 = b43legacy_rng_read;
- wl->rng.priv = (unsigned long)wl;
- wl->rng_initialized = 1;
- err = hwrng_register(&wl->rng);
- if (err) {
- wl->rng_initialized = 0;
- b43legacyerr(wl, "Failed to register the random "
- "number generator (%d)\n", err);
- }
-
-#endif
- return err;
-}
-
-static void b43legacy_tx_work(struct work_struct *work)
-{
- struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
- tx_work);
- struct b43legacy_wldev *dev;
- struct sk_buff *skb;
- int queue_num;
- int err = 0;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- if (unlikely(!dev || b43legacy_status(dev) < B43legacy_STAT_STARTED)) {
- mutex_unlock(&wl->mutex);
- return;
- }
-
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- while (skb_queue_len(&wl->tx_queue[queue_num])) {
- skb = skb_dequeue(&wl->tx_queue[queue_num]);
- if (b43legacy_using_pio(dev))
- err = b43legacy_pio_tx(dev, skb);
- else
- err = b43legacy_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))
- dev_kfree_skb(skb); /* Drop it */
- err = 0;
- }
-
- if (!err)
- wl->tx_queue_stopped[queue_num] = 0;
- }
-
- mutex_unlock(&wl->mutex);
-}
-
-static void b43legacy_op_tx(struct ieee80211_hw *hw,
- struct ieee80211_tx_control *control,
- struct sk_buff *skb)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
-
- if (unlikely(skb->len < 2 + 2 + 6)) {
- /* Too short, this can't be a valid frame. */
- dev_kfree_skb_any(skb);
- return;
- }
- B43legacy_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 int b43legacy_op_conf_tx(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, u16 queue,
- const struct ieee80211_tx_queue_params *params)
-{
- return 0;
-}
-
-static int b43legacy_op_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- memcpy(stats, &wl->ieee_stats, sizeof(*stats));
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static const char *phymode_to_string(unsigned int phymode)
-{
- switch (phymode) {
- case B43legacy_PHYMODE_B:
- return "B";
- case B43legacy_PHYMODE_G:
- return "G";
- default:
- B43legacy_BUG_ON(1);
- }
- return "";
-}
-
-static int find_wldev_for_phymode(struct b43legacy_wl *wl,
- unsigned int phymode,
- struct b43legacy_wldev **dev,
- bool *gmode)
-{
- struct b43legacy_wldev *d;
-
- list_for_each_entry(d, &wl->devlist, list) {
- if (d->phy.possible_phymodes & phymode) {
- /* Ok, this device supports the PHY-mode.
- * Set the gmode bit. */
- *gmode = true;
- *dev = d;
-
- return 0;
- }
- }
-
- return -ESRCH;
-}
-
-static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev)
-{
- struct ssb_device *sdev = dev->dev;
- u32 tmslow;
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~B43legacy_TMSLOW_GMODE;
- tmslow |= B43legacy_TMSLOW_PHYRESET;
- tmslow |= SSB_TMSLOW_FGC;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-
- tmslow = ssb_read32(sdev, SSB_TMSLOW);
- tmslow &= ~SSB_TMSLOW_FGC;
- tmslow |= B43legacy_TMSLOW_PHYRESET;
- ssb_write32(sdev, SSB_TMSLOW, tmslow);
- msleep(1);
-}
-
-/* Expects wl->mutex locked */
-static int b43legacy_switch_phymode(struct b43legacy_wl *wl,
- unsigned int new_mode)
-{
- struct b43legacy_wldev *uninitialized_var(up_dev);
- struct b43legacy_wldev *down_dev;
- int err;
- bool gmode = false;
- int prev_status;
-
- err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
- if (err) {
- b43legacyerr(wl, "Could not find a device for %s-PHY mode\n",
- phymode_to_string(new_mode));
- return err;
- }
- if ((up_dev == wl->current_dev) &&
- (!!wl->current_dev->phy.gmode == !!gmode))
- /* This device is already running. */
- return 0;
- b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
- phymode_to_string(new_mode));
- down_dev = wl->current_dev;
-
- prev_status = b43legacy_status(down_dev);
- /* Shutdown the currently running core. */
- if (prev_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(down_dev);
- if (prev_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(down_dev);
-
- if (down_dev != up_dev)
- /* We switch to a different core, so we put PHY into
- * RESET on the old core. */
- b43legacy_put_phy_into_reset(down_dev);
-
- /* Now start the new core. */
- up_dev->phy.gmode = gmode;
- if (prev_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(up_dev);
- if (err) {
- b43legacyerr(wl, "Fatal: Could not initialize device"
- " for newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- goto init_failure;
- }
- }
- if (prev_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(up_dev);
- if (err) {
- b43legacyerr(wl, "Fatal: Could not start device for "
- "newly selected %s-PHY mode\n",
- phymode_to_string(new_mode));
- b43legacy_wireless_core_exit(up_dev);
- goto init_failure;
- }
- }
- B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status);
-
- b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0);
-
- wl->current_dev = up_dev;
-
- return 0;
-init_failure:
- /* Whoops, failed to init the new core. No core is operating now. */
- wl->current_dev = NULL;
- return err;
-}
-
-/* Write the short and long frame retry limit values. */
-static void b43legacy_set_retry_limits(struct b43legacy_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);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
-}
-
-static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
- u32 changed)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- struct b43legacy_phy *phy;
- struct ieee80211_conf *conf = &hw->conf;
- unsigned long flags;
- unsigned int new_phymode = 0xFFFF;
- int antenna_tx;
- int err = 0;
-
- antenna_tx = B43legacy_ANTENNA_DEFAULT;
-
- mutex_lock(&wl->mutex);
- dev = wl->current_dev;
- phy = &dev->phy;
-
- if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
- b43legacy_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_unlock_mutex;
-
- /* Switch the PHY mode (if necessary). */
- switch (conf->chandef.chan->band) {
- case IEEE80211_BAND_2GHZ:
- if (phy->type == B43legacy_PHYTYPE_B)
- new_phymode = B43legacy_PHYMODE_B;
- else
- new_phymode = B43legacy_PHYMODE_G;
- break;
- default:
- B43legacy_WARN_ON(1);
- }
- err = b43legacy_switch_phymode(wl, new_phymode);
- if (err)
- goto out_unlock_mutex;
-
- /* Disable IRQs while reconfiguring the device.
- * This makes it possible to drop the spinlock throughout
- * the reconfiguration process. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- goto out_unlock_mutex;
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43legacy_synchronize_irq(dev);
-
- /* Switch to the requested channel.
- * The firmware takes care of races with the TX handler. */
- if (conf->chandef.chan->hw_value != phy->channel)
- b43legacy_radio_selectchannel(dev, conf->chandef.chan->hw_value,
- 0);
-
- 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->power_level) {
- phy->power_level = conf->power_level;
- b43legacy_phy_xmitpower(dev);
- }
- }
-
- /* Antennas for RX and management frame TX. */
- b43legacy_mgmtframe_txantenna(dev, antenna_tx);
-
- if (wl->radio_enabled != phy->radio_on) {
- if (wl->radio_enabled) {
- b43legacy_radio_turn_on(dev);
- b43legacyinfo(dev->wl, "Radio turned on by software\n");
- if (!dev->radio_hw_enable)
- b43legacyinfo(dev->wl, "The hardware RF-kill"
- " button still turns the radio"
- " physically off. Press the"
- " button to turn it on.\n");
- } else {
- b43legacy_radio_turn_off(dev, 0);
- b43legacyinfo(dev->wl, "Radio turned off by"
- " software\n");
- }
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- mmiowb();
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-out_unlock_mutex:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
-{
- struct ieee80211_supported_band *sband =
- dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
- 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 (b43legacy_is_cck_rate(rate->hw_value)) {
- direct = B43legacy_SHM_SH_CCKDIRECT;
- basic = B43legacy_SHM_SH_CCKBASIC;
- offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
- offset &= 0xF;
- } else {
- direct = B43legacy_SHM_SH_OFDMDIRECT;
- basic = B43legacy_SHM_SH_OFDMBASIC;
- offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
- offset &= 0xF;
- }
-
- rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
-
- if (b43legacy_is_cck_rate(rate->hw_value)) {
- basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
- basic_offset &= 0xF;
- } else {
- basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
- basic_offset &= 0xF;
- }
-
- /*
- * Get the pointer that we need to point to
- * from the direct map
- */
- rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
- direct + 2 * basic_offset);
- /* and write it to the basic map */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- basic + 2 * offset, rateptr);
- }
-}
-
-static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *conf,
- u32 changed)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- unsigned long flags;
-
- mutex_lock(&wl->mutex);
- B43legacy_WARN_ON(wl->vif != vif);
-
- dev = wl->current_dev;
-
- /* Disable IRQs while reconfiguring the device.
- * This makes it possible to drop the spinlock throughout
- * the reconfiguration process. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- goto out_unlock_mutex;
- }
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
-
- if (changed & BSS_CHANGED_BSSID) {
- b43legacy_synchronize_irq(dev);
-
- if (conf->bssid)
- memcpy(wl->bssid, conf->bssid, ETH_ALEN);
- else
- eth_zero_addr(wl->bssid);
- }
-
- if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
- if (changed & BSS_CHANGED_BEACON &&
- (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
- b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
- b43legacy_update_templates(wl);
-
- if (changed & BSS_CHANGED_BSSID)
- b43legacy_write_mac_bssid_templates(dev);
- }
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- b43legacy_mac_suspend(dev);
-
- if (changed & BSS_CHANGED_BEACON_INT &&
- (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
- b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
- b43legacy_set_beacon_int(dev, conf->beacon_int);
-
- if (changed & BSS_CHANGED_BASIC_RATES)
- b43legacy_update_basic_rates(dev, conf->basic_rates);
-
- if (changed & BSS_CHANGED_ERP_SLOT) {
- if (conf->use_short_slot)
- b43legacy_short_slot_timing_enable(dev);
- else
- b43legacy_short_slot_timing_disable(dev);
- }
-
- b43legacy_mac_enable(dev);
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
- /* XXX: why? */
- mmiowb();
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- out_unlock_mutex:
- mutex_unlock(&wl->mutex);
-}
-
-static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed,
- unsigned int *fflags,u64 multicast)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- if (!dev) {
- *fflags = 0;
- return;
- }
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- *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 && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED)
- b43legacy_adjust_opmode(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-}
-
-/* Locking: wl->mutex */
-static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- unsigned long flags;
- int queue_num;
-
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
- return;
-
- /* Disable and sync interrupts. We must do this before than
- * setting the status to INITIALIZED, as the interrupt handler
- * won't care about IRQs then. */
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
- b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK); /* flush */
- spin_unlock_irqrestore(&wl->irq_lock, flags);
- b43legacy_synchronize_irq(dev);
-
- b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
-
- mutex_unlock(&wl->mutex);
- /* Must unlock as it would otherwise deadlock. No races here.
- * Cancel the possibly running self-rearming periodic work. */
- cancel_delayed_work_sync(&dev->periodic_work);
- cancel_work_sync(&wl->tx_work);
- mutex_lock(&wl->mutex);
-
- /* Drain all TX queues. */
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- while (skb_queue_len(&wl->tx_queue[queue_num]))
- dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
- }
-
-b43legacy_mac_suspend(dev);
- free_irq(dev->dev->irq, dev);
- b43legacydbg(wl, "Wireless interface stopped\n");
-}
-
-/* Locking: wl->mutex */
-static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev)
-{
- int err;
-
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED);
-
- drain_txstatus_queue(dev);
- err = request_irq(dev->dev->irq, b43legacy_interrupt_handler,
- IRQF_SHARED, KBUILD_MODNAME, dev);
- if (err) {
- b43legacyerr(dev->wl, "Cannot request IRQ-%d\n",
- dev->dev->irq);
- goto out;
- }
- /* We are ready to run. */
- ieee80211_wake_queues(dev->wl->hw);
- b43legacy_set_status(dev, B43legacy_STAT_STARTED);
-
- /* Start data flow (TX/RX) */
- b43legacy_mac_enable(dev);
- b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
-
- /* Start maintenance work */
- b43legacy_periodic_tasks_setup(dev);
-
- b43legacydbg(dev->wl, "Wireless interface started\n");
-out:
- return err;
-}
-
-/* Get PHY and RADIO versioning numbers */
-static int b43legacy_phy_versioning(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u32 tmp;
- u8 analog_type;
- u8 phy_type;
- u8 phy_rev;
- u16 radio_manuf;
- u16 radio_ver;
- u16 radio_rev;
- int unsupported = 0;
-
- /* Get PHY versioning */
- tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER);
- analog_type = (tmp & B43legacy_PHYVER_ANALOG)
- >> B43legacy_PHYVER_ANALOG_SHIFT;
- phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT;
- phy_rev = (tmp & B43legacy_PHYVER_VERSION);
- switch (phy_type) {
- case B43legacy_PHYTYPE_B:
- if (phy_rev != 2 && phy_rev != 4
- && phy_rev != 6 && phy_rev != 7)
- unsupported = 1;
- break;
- case B43legacy_PHYTYPE_G:
- if (phy_rev > 8)
- unsupported = 1;
- break;
- default:
- unsupported = 1;
- }
- if (unsupported) {
- b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY "
- "(Analog %u, Type %u, Revision %u)\n",
- analog_type, phy_type, phy_rev);
- return -EOPNOTSUPP;
- }
- b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
- analog_type, phy_type, phy_rev);
-
-
- /* Get RADIO versioning */
- if (dev->dev->bus->chip_id == 0x4317) {
- if (dev->dev->bus->chip_rev == 0)
- tmp = 0x3205017F;
- else if (dev->dev->bus->chip_rev == 1)
- tmp = 0x4205017F;
- else
- tmp = 0x5205017F;
- } else {
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
- B43legacy_RADIOCTL_ID);
- tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH);
- tmp <<= 16;
- b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
- B43legacy_RADIOCTL_ID);
- tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
- }
- radio_manuf = (tmp & 0x00000FFF);
- radio_ver = (tmp & 0x0FFFF000) >> 12;
- radio_rev = (tmp & 0xF0000000) >> 28;
- switch (phy_type) {
- case B43legacy_PHYTYPE_B:
- if ((radio_ver & 0xFFF0) != 0x2050)
- unsupported = 1;
- break;
- case B43legacy_PHYTYPE_G:
- if (radio_ver != 0x2050)
- unsupported = 1;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
- if (unsupported) {
- b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO "
- "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
- radio_manuf, radio_ver, radio_rev);
- return -EOPNOTSUPP;
- }
- b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X,"
- " Revision %u\n", radio_manuf, radio_ver, radio_rev);
-
-
- phy->radio_manuf = radio_manuf;
- phy->radio_ver = radio_ver;
- phy->radio_rev = radio_rev;
-
- phy->analog = analog_type;
- phy->type = phy_type;
- phy->rev = phy_rev;
-
- return 0;
-}
-
-static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
- struct b43legacy_phy *phy)
-{
- struct b43legacy_lopair *lo;
- int i;
-
- memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
- memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
-
- /* 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;
-
- phy->savedpctlreg = 0xFFFF;
- phy->aci_enable = false;
- phy->aci_wlan_automatic = false;
- phy->aci_hw_rssi = false;
-
- lo = phy->_lo_pairs;
- if (lo)
- memset(lo, 0, sizeof(struct b43legacy_lopair) *
- B43legacy_LO_COUNT);
- phy->max_lb_gain = 0;
- phy->trsw_rx_gain = 0;
-
- /* Set default attenuation values. */
- phy->bbatt = b43legacy_default_baseband_attenuation(dev);
- phy->rfatt = b43legacy_default_radio_attenuation(dev);
- phy->txctl1 = b43legacy_default_txctl1(dev);
- phy->txpwr_offset = 0;
-
- /* NRSSI */
- phy->nrssislope = 0;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
- phy->nrssi[i] = -1000;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
- phy->nrssi_lt[i] = i;
-
- phy->lofcal = 0xFFFF;
- phy->initval = 0xFFFF;
-
- phy->interfmode = B43legacy_INTERFMODE_NONE;
- phy->channel = 0xFF;
-}
-
-static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
-{
- /* Flags */
- dev->dfq_valid = false;
-
- /* 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 = B43legacy_IRQ_MASKTEMPLATE;
-
- dev->mac_suspended = 1;
-
- /* Noise calculation context */
- memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
-}
-
-static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
- bool idle) {
- u16 pu_delay = 1050;
-
- if (b43legacy_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);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_SPUWKUP, pu_delay);
-}
-
-/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
-static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev)
-{
- u16 pretbtt;
-
- /* The time value is in microseconds. */
- if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
- pretbtt = 2;
- else
- pretbtt = 250;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRETBTT, pretbtt);
- b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt);
-}
-
-/* Shutdown a wireless core */
-/* Locking: wl->mutex */
-static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- u32 macctl;
-
- B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED);
- if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED)
- return;
- b43legacy_set_status(dev, B43legacy_STAT_UNINIT);
-
- /* Stop the microcode PSM. */
- macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
- macctl &= ~B43legacy_MACCTL_PSM_RUN;
- macctl |= B43legacy_MACCTL_PSM_JMP0;
- b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
-
- b43legacy_leds_exit(dev);
- b43legacy_rng_exit(dev->wl);
- b43legacy_pio_free(dev);
- b43legacy_dma_free(dev);
- b43legacy_chip_exit(dev);
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_switch_analog(dev, 0);
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- if (dev->wl->current_beacon) {
- dev_kfree_skb_any(dev->wl->current_beacon);
- dev->wl->current_beacon = NULL;
- }
-
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(dev->dev->bus);
-}
-
-static void prepare_phy_data_for_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_phy *phy = &dev->phy;
- int i;
-
- /* Set default attenuation values. */
- phy->bbatt = b43legacy_default_baseband_attenuation(dev);
- phy->rfatt = b43legacy_default_radio_attenuation(dev);
- phy->txctl1 = b43legacy_default_txctl1(dev);
- phy->txctl2 = 0xFFFF;
- phy->txpwr_offset = 0;
-
- /* NRSSI */
- phy->nrssislope = 0;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
- phy->nrssi[i] = -1000;
- for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
- phy->nrssi_lt[i] = i;
-
- phy->lofcal = 0xFFFF;
- phy->initval = 0xFFFF;
-
- phy->aci_enable = false;
- phy->aci_wlan_automatic = false;
- phy->aci_hw_rssi = false;
-
- phy->antenna_diversity = 0xFFFF;
- memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
- memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
-
- /* Flags */
- phy->calibrated = 0;
-
- if (phy->_lo_pairs)
- memset(phy->_lo_pairs, 0,
- sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT);
- memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
-}
-
-/* Initialize a wireless core */
-static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct b43legacy_phy *phy = &dev->phy;
- struct ssb_sprom *sprom = &dev->dev->bus->sprom;
- int err;
- u32 hf;
- u32 tmp;
-
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
-
- err = ssb_bus_powerup(bus, 0);
- if (err)
- goto out;
- if (!ssb_device_is_enabled(dev->dev)) {
- tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
- }
-
- if ((phy->type == B43legacy_PHYTYPE_B) ||
- (phy->type == B43legacy_PHYTYPE_G)) {
- phy->_lo_pairs = kzalloc(sizeof(struct b43legacy_lopair)
- * B43legacy_LO_COUNT,
- GFP_KERNEL);
- if (!phy->_lo_pairs)
- return -ENOMEM;
- }
- setup_struct_wldev_for_init(dev);
-
- err = b43legacy_phy_init_tssi2dbm_table(dev);
- if (err)
- goto err_kfree_lo_control;
-
- /* Enable IRQ routing to this device. */
- ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
-
- prepare_phy_data_for_init(dev);
- b43legacy_phy_calibrate(dev);
- err = b43legacy_chip_init(dev);
- if (err)
- goto err_kfree_tssitbl;
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_WLCOREREV,
- dev->dev->id.revision);
- hf = b43legacy_hf_read(dev);
- if (phy->type == B43legacy_PHYTYPE_G) {
- hf |= B43legacy_HF_SYMW;
- if (phy->rev == 1)
- hf |= B43legacy_HF_GDCW;
- if (sprom->boardflags_lo & B43legacy_BFL_PACTRL)
- hf |= B43legacy_HF_OFDMPABOOST;
- } else if (phy->type == B43legacy_PHYTYPE_B) {
- hf |= B43legacy_HF_SYMW;
- if (phy->rev >= 2 && phy->radio_ver == 0x2050)
- hf &= ~B43legacy_HF_GDCW;
- }
- b43legacy_hf_write(dev, hf);
-
- b43legacy_set_retry_limits(dev,
- B43legacy_DEFAULT_SHORT_RETRY_LIMIT,
- B43legacy_DEFAULT_LONG_RETRY_LIMIT);
-
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- 0x0044, 3);
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- 0x0046, 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. */
- b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
- B43legacy_SHM_SH_PRMAXTIME, 1);
-
- b43legacy_rate_memory_init(dev);
-
- /* Minimum Contention Window */
- if (phy->type == B43legacy_PHYTYPE_B)
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0003, 31);
- else
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0003, 15);
- /* Maximum Contention Window */
- b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
- 0x0004, 1023);
-
- do {
- if (b43legacy_using_pio(dev))
- err = b43legacy_pio_init(dev);
- else {
- err = b43legacy_dma_init(dev);
- if (!err)
- b43legacy_qos_init(dev);
- }
- } while (err == -EAGAIN);
- if (err)
- goto err_chip_exit;
-
- b43legacy_set_synth_pu_delay(dev, 1);
-
- ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
- b43legacy_upload_card_macaddress(dev);
- b43legacy_security_init(dev);
- b43legacy_rng_init(wl);
-
- ieee80211_wake_queues(dev->wl->hw);
- b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
-
- b43legacy_leds_init(dev);
-out:
- return err;
-
-err_chip_exit:
- b43legacy_chip_exit(dev);
-err_kfree_tssitbl:
- if (phy->dyn_tssi_tbl)
- kfree(phy->tssi2dbm);
-err_kfree_lo_control:
- kfree(phy->lo_control);
- phy->lo_control = NULL;
- ssb_bus_may_powerdown(bus);
- B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
- return err;
-}
-
-static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev;
- unsigned long flags;
- int err = -EOPNOTSUPP;
-
- /* TODO: allow WDS/AP devices to coexist */
-
- if (vif->type != NL80211_IFTYPE_AP &&
- 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;
-
- b43legacydbg(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);
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_adjust_opmode(dev);
- b43legacy_set_pretbtt(dev);
- b43legacy_set_synth_pu_delay(dev, 0);
- b43legacy_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- err = 0;
- out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_op_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
- unsigned long flags;
-
- b43legacydbg(wl, "Removing Interface type %d\n", vif->type);
-
- mutex_lock(&wl->mutex);
-
- B43legacy_WARN_ON(!wl->operating);
- B43legacy_WARN_ON(wl->vif != vif);
- wl->vif = NULL;
-
- wl->operating = false;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_adjust_opmode(dev);
- eth_zero_addr(wl->mac_addr);
- b43legacy_upload_card_macaddress(dev);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- mutex_unlock(&wl->mutex);
-}
-
-static int b43legacy_op_start(struct ieee80211_hw *hw)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_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->beacon0_uploaded = false;
- wl->beacon1_uploaded = false;
- wl->beacon_templates_virgin = true;
- wl->radio_enabled = true;
-
- mutex_lock(&wl->mutex);
-
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(dev);
- if (err)
- goto out_mutex_unlock;
- did_init = 1;
- }
-
- if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(dev);
- if (err) {
- if (did_init)
- b43legacy_wireless_core_exit(dev);
- goto out_mutex_unlock;
- }
- }
-
- wiphy_rfkill_start_polling(hw->wiphy);
-
-out_mutex_unlock:
- mutex_unlock(&wl->mutex);
-
- return err;
-}
-
-static void b43legacy_op_stop(struct ieee80211_hw *hw)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_wldev *dev = wl->current_dev;
-
- cancel_work_sync(&(wl->beacon_update_trigger));
-
- mutex_lock(&wl->mutex);
- if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(dev);
- b43legacy_wireless_core_exit(dev);
- wl->radio_enabled = false;
- mutex_unlock(&wl->mutex);
-}
-
-static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
- struct ieee80211_sta *sta, bool set)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- unsigned long flags;
-
- spin_lock_irqsave(&wl->irq_lock, flags);
- b43legacy_update_templates(wl);
- spin_unlock_irqrestore(&wl->irq_lock, flags);
-
- return 0;
-}
-
-static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx,
- struct survey_info *survey)
-{
- struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
- struct b43legacy_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 b43legacy_hw_ops = {
- .tx = b43legacy_op_tx,
- .conf_tx = b43legacy_op_conf_tx,
- .add_interface = b43legacy_op_add_interface,
- .remove_interface = b43legacy_op_remove_interface,
- .config = b43legacy_op_dev_config,
- .bss_info_changed = b43legacy_op_bss_info_changed,
- .configure_filter = b43legacy_op_configure_filter,
- .get_stats = b43legacy_op_get_stats,
- .start = b43legacy_op_start,
- .stop = b43legacy_op_stop,
- .set_tim = b43legacy_op_beacon_set_tim,
- .get_survey = b43legacy_op_get_survey,
- .rfkill_poll = b43legacy_rfkill_poll,
-};
-
-/* Hard-reset the chip. Do not call this directly.
- * Use b43legacy_controller_restart()
- */
-static void b43legacy_chip_reset(struct work_struct *work)
-{
- struct b43legacy_wldev *dev =
- container_of(work, struct b43legacy_wldev, restart_work);
- struct b43legacy_wl *wl = dev->wl;
- int err = 0;
- int prev_status;
-
- mutex_lock(&wl->mutex);
-
- prev_status = b43legacy_status(dev);
- /* Bring the device down... */
- if (prev_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(dev);
- if (prev_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(dev);
-
- /* ...and up again. */
- if (prev_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(dev);
- if (err)
- goto out;
- }
- if (prev_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(dev);
- if (err) {
- b43legacy_wireless_core_exit(dev);
- goto out;
- }
- }
-out:
- if (err)
- wl->current_dev = NULL; /* Failed to init the dev. */
- mutex_unlock(&wl->mutex);
- if (err)
- b43legacyerr(wl, "Controller restart FAILED\n");
- else
- b43legacyinfo(wl, "Controller restarted\n");
-}
-
-static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
- int have_bphy,
- int have_gphy)
-{
- struct ieee80211_hw *hw = dev->wl->hw;
- struct b43legacy_phy *phy = &dev->phy;
-
- phy->possible_phymodes = 0;
- if (have_bphy) {
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &b43legacy_band_2GHz_BPHY;
- phy->possible_phymodes |= B43legacy_PHYMODE_B;
- }
-
- if (have_gphy) {
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &b43legacy_band_2GHz_GPHY;
- phy->possible_phymodes |= B43legacy_PHYMODE_G;
- }
-
- return 0;
-}
-
-static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev)
-{
- /* We release firmware that late to not be required to re-request
- * is all the time when we reinit the core. */
- b43legacy_release_firmware(dev);
-}
-
-static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
-{
- struct b43legacy_wl *wl = dev->wl;
- struct ssb_bus *bus = dev->dev->bus;
- struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
- int err;
- int have_bphy = 0;
- int have_gphy = 0;
- u32 tmp;
-
- /* Do NOT do any device initialization here.
- * Do it in wireless_core_init() instead.
- * This function is for gathering basic information about the HW, only.
- * Also some structs may be set up here. But most likely you want to
- * have that in core_init(), too.
- */
-
- err = ssb_bus_powerup(bus, 0);
- if (err) {
- b43legacyerr(wl, "Bus powerup failed\n");
- goto out;
- }
- /* Get the PHY type. */
- if (dev->dev->id.revision >= 5) {
- u32 tmshigh;
-
- tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
- have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY);
- if (!have_gphy)
- have_bphy = 1;
- } else if (dev->dev->id.revision == 4)
- have_gphy = 1;
- else
- have_bphy = 1;
-
- dev->phy.gmode = (have_gphy || have_bphy);
- dev->phy.radio_on = true;
- tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
-
- err = b43legacy_phy_versioning(dev);
- if (err)
- goto err_powerdown;
- /* Check if this device supports multiband. */
- if (!pdev ||
- (pdev->device != 0x4312 &&
- pdev->device != 0x4319 &&
- pdev->device != 0x4324)) {
- /* No multiband support. */
- have_bphy = 0;
- have_gphy = 0;
- switch (dev->phy.type) {
- case B43legacy_PHYTYPE_B:
- have_bphy = 1;
- break;
- case B43legacy_PHYTYPE_G:
- have_gphy = 1;
- break;
- default:
- B43legacy_BUG_ON(1);
- }
- }
- dev->phy.gmode = (have_gphy || have_bphy);
- tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
- b43legacy_wireless_core_reset(dev, tmp);
-
- err = b43legacy_validate_chipaccess(dev);
- if (err)
- goto err_powerdown;
- err = b43legacy_setup_modes(dev, have_bphy, have_gphy);
- if (err)
- goto err_powerdown;
-
- /* Now set some default "current_dev" */
- if (!wl->current_dev)
- wl->current_dev = dev;
- INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
-
- b43legacy_radio_turn_off(dev, 1);
- b43legacy_switch_analog(dev, 0);
- ssb_device_disable(dev->dev, 0);
- ssb_bus_may_powerdown(bus);
-
-out:
- return err;
-
-err_powerdown:
- ssb_bus_may_powerdown(bus);
- return err;
-}
-
-static void b43legacy_one_core_detach(struct ssb_device *dev)
-{
- struct b43legacy_wldev *wldev;
- struct b43legacy_wl *wl;
-
- /* Do not cancel ieee80211-workqueue based work here.
- * See comment in b43legacy_remove(). */
-
- wldev = ssb_get_drvdata(dev);
- wl = wldev->wl;
- b43legacy_debugfs_remove_device(wldev);
- b43legacy_wireless_core_detach(wldev);
- list_del(&wldev->list);
- wl->nr_devs--;
- ssb_set_drvdata(dev, NULL);
- kfree(wldev);
-}
-
-static int b43legacy_one_core_attach(struct ssb_device *dev,
- struct b43legacy_wl *wl)
-{
- struct b43legacy_wldev *wldev;
- int err = -ENOMEM;
-
- wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
- if (!wldev)
- goto out;
-
- wldev->dev = dev;
- wldev->wl = wl;
- b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
- wldev->bad_frames_preempt = modparam_bad_frames_preempt;
- tasklet_init(&wldev->isr_tasklet,
- (void (*)(unsigned long))b43legacy_interrupt_tasklet,
- (unsigned long)wldev);
- if (modparam_pio)
- wldev->__using_pio = true;
- INIT_LIST_HEAD(&wldev->list);
-
- err = b43legacy_wireless_core_attach(wldev);
- if (err)
- goto err_kfree_wldev;
-
- list_add(&wldev->list, &wl->devlist);
- wl->nr_devs++;
- ssb_set_drvdata(dev, wldev);
- b43legacy_debugfs_add_device(wldev);
-out:
- return err;
-
-err_kfree_wldev:
- kfree(wldev);
- return err;
-}
-
-static void b43legacy_sprom_fixup(struct ssb_bus *bus)
-{
- /* boardflags workarounds */
- if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
- bus->boardinfo.type == 0x4E &&
- bus->sprom.board_rev > 0x40)
- bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL;
-}
-
-static void b43legacy_wireless_exit(struct ssb_device *dev,
- struct b43legacy_wl *wl)
-{
- struct ieee80211_hw *hw = wl->hw;
-
- ssb_set_devtypedata(dev, NULL);
- ieee80211_free_hw(hw);
-}
-
-static int b43legacy_wireless_init(struct ssb_device *dev)
-{
- struct ssb_sprom *sprom = &dev->bus->sprom;
- struct ieee80211_hw *hw;
- struct b43legacy_wl *wl;
- int err = -ENOMEM;
- int queue_num;
-
- b43legacy_sprom_fixup(dev->bus);
-
- hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops);
- if (!hw) {
- b43legacyerr(NULL, "Could not allocate ieee80211 device\n");
- goto out;
- }
-
- /* 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_STATION) |
- BIT(NL80211_IFTYPE_WDS) |
- BIT(NL80211_IFTYPE_ADHOC);
- hw->queues = 1; /* FIXME: hardware has more queues */
- 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);
-
- /* Get and initialize struct b43legacy_wl */
- wl = hw_to_b43legacy_wl(hw);
- memset(wl, 0, sizeof(*wl));
- wl->hw = hw;
- spin_lock_init(&wl->irq_lock);
- spin_lock_init(&wl->leds_lock);
- mutex_init(&wl->mutex);
- INIT_LIST_HEAD(&wl->devlist);
- INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work);
- INIT_WORK(&wl->tx_work, b43legacy_tx_work);
-
- /* Initialize queues and flags. */
- for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
- skb_queue_head_init(&wl->tx_queue[queue_num]);
- wl->tx_queue_stopped[queue_num] = 0;
- }
-
- ssb_set_devtypedata(dev, wl);
- b43legacyinfo(wl, "Broadcom %04X WLAN found (core revision %u)\n",
- dev->bus->chip_id, dev->id.revision);
- err = 0;
-out:
- return err;
-}
-
-static int b43legacy_probe(struct ssb_device *dev,
- const struct ssb_device_id *id)
-{
- struct b43legacy_wl *wl;
- int err;
- int first = 0;
-
- wl = ssb_get_devtypedata(dev);
- if (!wl) {
- /* Probing the first core - setup common struct b43legacy_wl */
- first = 1;
- err = b43legacy_wireless_init(dev);
- if (err)
- goto out;
- wl = ssb_get_devtypedata(dev);
- B43legacy_WARN_ON(!wl);
- }
- err = b43legacy_one_core_attach(dev, wl);
- if (err)
- goto err_wireless_exit;
-
- /* setup and start work to load firmware */
- INIT_WORK(&wl->firmware_load, b43legacy_request_firmware);
- schedule_work(&wl->firmware_load);
-
-out:
- return err;
-
-err_wireless_exit:
- if (first)
- b43legacy_wireless_exit(dev, wl);
- return err;
-}
-
-static void b43legacy_remove(struct ssb_device *dev)
-{
- struct b43legacy_wl *wl = ssb_get_devtypedata(dev);
- struct b43legacy_wldev *wldev = ssb_get_drvdata(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);
- complete(&wldev->fw_load_complete);
-
- B43legacy_WARN_ON(!wl);
- if (!wldev->fw.ucode)
- return; /* NULL if fw never loaded */
- if (wl->current_dev == wldev)
- ieee80211_unregister_hw(wl->hw);
-
- b43legacy_one_core_detach(dev);
-
- if (list_empty(&wl->devlist))
- /* Last core on the chip unregistered.
- * We can destroy common struct b43legacy_wl.
- */
- b43legacy_wireless_exit(dev, wl);
-}
-
-/* Perform a hardware reset. This can be called from any context. */
-void b43legacy_controller_restart(struct b43legacy_wldev *dev,
- const char *reason)
-{
- /* Must avoid requeueing, if we are in shutdown. */
- if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
- return;
- b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason);
- ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
-}
-
-#ifdef CONFIG_PM
-
-static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state)
-{
- struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
- struct b43legacy_wl *wl = wldev->wl;
-
- b43legacydbg(wl, "Suspending...\n");
-
- mutex_lock(&wl->mutex);
- wldev->suspend_init_status = b43legacy_status(wldev);
- if (wldev->suspend_init_status >= B43legacy_STAT_STARTED)
- b43legacy_wireless_core_stop(wldev);
- if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED)
- b43legacy_wireless_core_exit(wldev);
- mutex_unlock(&wl->mutex);
-
- b43legacydbg(wl, "Device suspended.\n");
-
- return 0;
-}
-
-static int b43legacy_resume(struct ssb_device *dev)
-{
- struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
- struct b43legacy_wl *wl = wldev->wl;
- int err = 0;
-
- b43legacydbg(wl, "Resuming...\n");
-
- mutex_lock(&wl->mutex);
- if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) {
- err = b43legacy_wireless_core_init(wldev);
- if (err) {
- b43legacyerr(wl, "Resume failed at core init\n");
- goto out;
- }
- }
- if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) {
- err = b43legacy_wireless_core_start(wldev);
- if (err) {
- b43legacy_wireless_core_exit(wldev);
- b43legacyerr(wl, "Resume failed at core start\n");
- goto out;
- }
- }
-
- b43legacydbg(wl, "Device resumed.\n");
-out:
- mutex_unlock(&wl->mutex);
- return err;
-}
-
-#else /* CONFIG_PM */
-# define b43legacy_suspend NULL
-# define b43legacy_resume NULL
-#endif /* CONFIG_PM */
-
-static struct ssb_driver b43legacy_ssb_driver = {
- .name = KBUILD_MODNAME,
- .id_table = b43legacy_ssb_tbl,
- .probe = b43legacy_probe,
- .remove = b43legacy_remove,
- .suspend = b43legacy_suspend,
- .resume = b43legacy_resume,
-};
-
-static void b43legacy_print_driverinfo(void)
-{
- const char *feat_pci = "", *feat_leds = "",
- *feat_pio = "", *feat_dma = "";
-
-#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
- feat_pci = "P";
-#endif
-#ifdef CONFIG_B43LEGACY_LEDS
- feat_leds = "L";
-#endif
-#ifdef CONFIG_B43LEGACY_PIO
- feat_pio = "I";
-#endif
-#ifdef CONFIG_B43LEGACY_DMA
- feat_dma = "D";
-#endif
- printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
- "[ Features: %s%s%s%s ]\n",
- feat_pci, feat_leds, feat_pio, feat_dma);
-}
-
-static int __init b43legacy_init(void)
-{
- int err;
-
- b43legacy_debugfs_init();
-
- err = ssb_driver_register(&b43legacy_ssb_driver);
- if (err)
- goto err_dfs_exit;
-
- b43legacy_print_driverinfo();
-
- return err;
-
-err_dfs_exit:
- b43legacy_debugfs_exit();
- return err;
-}
-
-static void __exit b43legacy_exit(void)
-{
- ssb_driver_unregister(&b43legacy_ssb_driver);
- b43legacy_debugfs_exit();
-}
-
-module_init(b43legacy_init)
-module_exit(b43legacy_exit)