diff options
Diffstat (limited to 'drivers/net/wireless/b43/main.c')
-rw-r--r-- | drivers/net/wireless/b43/main.c | 232 |
1 files changed, 113 insertions, 119 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 79b685e300c7..6456afebdba1 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -80,8 +80,8 @@ static int modparam_nohwcrypt; module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); -int b43_modparam_qos = 1; -module_param_named(qos, b43_modparam_qos, int, 0444); +static int modparam_qos = 1; +module_param_named(qos, modparam_qos, int, 0444); MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); static int modparam_btcoex = 1; @@ -538,6 +538,13 @@ void b43_hf_write(struct b43_wldev *dev, u64 value) b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); } +/* Read the firmware capabilities bitmask (Opensource firmware only) */ +static u16 b43_fwcapa_read(struct b43_wldev *dev) +{ + B43_WARN_ON(!dev->fw.opensource); + return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); +} + void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) { u32 low, high; @@ -673,32 +680,6 @@ static void b43_short_slot_timing_disable(struct b43_wldev *dev) b43_set_slot_time(dev, 20); } -/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. - * Returns the _previously_ enabled IRQ mask. - */ -static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask) -{ - u32 old_mask; - - old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask); - - return old_mask; -} - -/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable. - * Returns the _previously_ enabled IRQ mask. - */ -static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask) -{ - u32 old_mask; - - old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask); - - return old_mask; -} - /* Synchronize IRQ top- and bottom-half. * IRQs must be masked before calling this. * This must not be called with the irq_lock held. @@ -1593,7 +1574,7 @@ static void handle_irq_beacon(struct b43_wldev *dev) /* This is the bottom half of the asynchronous beacon update. */ /* Ignore interrupt in the future. */ - dev->irq_savedstate &= ~B43_IRQ_BEACON; + dev->irq_mask &= ~B43_IRQ_BEACON; cmd = b43_read32(dev, B43_MMIO_MACCMD); beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); @@ -1602,7 +1583,7 @@ static void handle_irq_beacon(struct b43_wldev *dev) /* Schedule interrupt manually, if busy. */ if (beacon0_valid && beacon1_valid) { b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); - dev->irq_savedstate |= B43_IRQ_BEACON; + dev->irq_mask |= B43_IRQ_BEACON; return; } @@ -1641,11 +1622,9 @@ static void b43_beacon_update_trigger_work(struct work_struct *work) if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { spin_lock_irq(&wl->irq_lock); /* update beacon right away or defer to irq */ - dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); handle_irq_beacon(dev); /* The handler might have updated the IRQ mask. */ - b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, - dev->irq_savedstate); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); mmiowb(); spin_unlock_irq(&wl->irq_lock); } @@ -1879,7 +1858,7 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev) if (reason & B43_IRQ_TX_OK) handle_irq_transmit_status(dev); - b43_interrupt_enable(dev, dev->irq_savedstate); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); mmiowb(); spin_unlock_irqrestore(&dev->wl->irq_lock, flags); } @@ -1893,7 +1872,9 @@ static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); +/* Unused ring b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); +*/ } /* Interrupt handler top-half */ @@ -1903,18 +1884,19 @@ static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) struct b43_wldev *dev = dev_id; u32 reason; - if (!dev) - return IRQ_NONE; + B43_WARN_ON(!dev); spin_lock(&dev->wl->irq_lock); - if (b43_status(dev) < B43_STAT_STARTED) + if (unlikely(b43_status(dev) < B43_STAT_STARTED)) { + /* This can only happen on shared IRQ lines. */ goto out; + } reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); if (reason == 0xffffffff) /* shared IRQ */ goto out; ret = IRQ_HANDLED; - reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); + reason &= dev->irq_mask; if (!reason) goto out; @@ -1928,16 +1910,18 @@ static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) & 0x0001DC00; dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) & 0x0000DC00; +/* Unused ring dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) & 0x0000DC00; +*/ b43_interrupt_ack(dev, reason); /* disable all IRQs. They are enabled again in the bottom half. */ - dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); /* save the reason code and call our bottom half. */ dev->irq_reason = reason; tasklet_schedule(&dev->isr_tasklet); - out: +out: mmiowb(); spin_unlock(&dev->wl->irq_lock); @@ -2330,12 +2314,34 @@ static int b43_upload_microcode(struct b43_wldev *dev) dev->fw.patch = fwpatch; dev->fw.opensource = (fwdate == 0xFFFF); + /* Default to use-all-queues. */ + dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues; + dev->qos_enabled = !!modparam_qos; + /* Default to firmware/hardware crypto acceleration. */ + dev->hwcrypto_enabled = 1; + if (dev->fw.opensource) { + u16 fwcapa; + /* Patchlevel info is encoded in the "time" field. */ dev->fw.patch = fwtime; - b43info(dev->wl, "Loading OpenSource firmware version %u.%u%s\n", - dev->fw.rev, dev->fw.patch, - dev->fw.pcm_request_failed ? " (Hardware crypto not supported)" : ""); + b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", + dev->fw.rev, dev->fw.patch); + + fwcapa = b43_fwcapa_read(dev); + if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { + b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); + /* Disable hardware crypto and fall back to software crypto. */ + dev->hwcrypto_enabled = 0; + } + if (!(fwcapa & B43_FWCAPA_QOS)) { + b43info(dev->wl, "QoS not supported by firmware\n"); + /* Disable QoS. Tweak hw->queues to 1. It will be restored before + * ieee80211_unregister to make sure the networking core can + * properly free possible resources. */ + dev->wl->hw->queues = 1; + dev->qos_enabled = 0; + } } else { b43info(dev->wl, "Loading firmware version %u.%u " "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", @@ -2980,6 +2986,7 @@ static void b43_security_init(struct b43_wldev *dev) b43_clear_keys(dev); } +#ifdef CONFIG_B43_HWRNG static int b43_rng_read(struct hwrng *rng, u32 *data) { struct b43_wl *wl = (struct b43_wl *)rng->priv; @@ -2995,17 +3002,21 @@ static int b43_rng_read(struct hwrng *rng, u32 *data) return (sizeof(u16)); } +#endif /* CONFIG_B43_HWRNG */ static void b43_rng_exit(struct b43_wl *wl) { +#ifdef CONFIG_B43_HWRNG if (wl->rng_initialized) hwrng_unregister(&wl->rng); +#endif /* CONFIG_B43_HWRNG */ } static int b43_rng_init(struct b43_wl *wl) { - int err; + int err = 0; +#ifdef CONFIG_B43_HWRNG snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); wl->rng.name = wl->rng_name; @@ -3018,6 +3029,7 @@ static int b43_rng_init(struct b43_wl *wl) b43err(wl, "Failed to register the random " "number generator (%d)\n", err); } +#endif /* CONFIG_B43_HWRNG */ return err; } @@ -3485,14 +3497,9 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed) if (phy->ops->set_rx_antenna) phy->ops->set_rx_antenna(dev, antenna); - /* Update templates for AP/mesh mode. */ - if (b43_is_mode(wl, NL80211_IFTYPE_AP) || - b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) - b43_set_beacon_int(dev, conf->beacon_int); - if (!!conf->radio_enabled != phy->radio_on) { if (conf->radio_enabled) { - b43_software_rfkill(dev, RFKILL_STATE_UNBLOCKED); + b43_software_rfkill(dev, false); b43info(dev->wl, "Radio turned on by software\n"); if (!dev->radio_hw_enable) { b43info(dev->wl, "The hardware RF-kill button " @@ -3500,7 +3507,7 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed) "Press the button to turn it on.\n"); } } else { - b43_software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED); + b43_software_rfkill(dev, true); b43info(dev->wl, "Radio turned off by software\n"); } } @@ -3565,14 +3572,45 @@ static void b43_op_bss_info_changed(struct ieee80211_hw *hw, { struct b43_wl *wl = hw_to_b43_wl(hw); struct b43_wldev *dev; + unsigned long flags; mutex_lock(&wl->mutex); dev = wl->current_dev; if (!dev || b43_status(dev) < B43_STAT_STARTED) goto out_unlock_mutex; + + B43_WARN_ON(wl->vif != vif); + + spin_lock_irqsave(&wl->irq_lock, flags); + if (changed & BSS_CHANGED_BSSID) { + if (conf->bssid) + memcpy(wl->bssid, conf->bssid, ETH_ALEN); + else + memset(wl->bssid, 0, ETH_ALEN); + } + + if (b43_status(dev) >= B43_STAT_INITIALIZED) { + if (changed & BSS_CHANGED_BEACON && + (b43_is_mode(wl, NL80211_IFTYPE_AP) || + b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || + b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) + b43_update_templates(wl); + + if (changed & BSS_CHANGED_BSSID) + b43_write_mac_bssid_templates(dev); + } + spin_unlock_irqrestore(&wl->irq_lock, flags); + b43_mac_suspend(dev); + /* Update templates for AP/mesh mode. */ + if (changed & BSS_CHANGED_BEACON_INT && + (b43_is_mode(wl, NL80211_IFTYPE_AP) || + b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || + b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) + b43_set_beacon_int(dev, conf->beacon_int); + if (changed & BSS_CHANGED_BASIC_RATES) b43_update_basic_rates(dev, conf->basic_rates); @@ -3586,8 +3624,6 @@ static void b43_op_bss_info_changed(struct ieee80211_hw *hw, b43_mac_enable(dev); out_unlock_mutex: mutex_unlock(&wl->mutex); - - return; } static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, @@ -3620,7 +3656,7 @@ static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) goto out_unlock; - if (dev->fw.pcm_request_failed) { + if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { /* We don't have firmware for the crypto engine. * Must use software-crypto. */ err = -EOPNOTSUPP; @@ -3630,7 +3666,7 @@ static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, err = -EINVAL; switch (key->alg) { case ALG_WEP: - if (key->keylen == LEN_WEP40) + if (key->keylen == WLAN_KEY_LEN_WEP40) algorithm = B43_SEC_ALGO_WEP40; else algorithm = B43_SEC_ALGO_WEP104; @@ -3745,41 +3781,6 @@ static void b43_op_configure_filter(struct ieee80211_hw *hw, spin_unlock_irqrestore(&wl->irq_lock, flags); } -static int b43_op_config_interface(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_if_conf *conf) -{ - struct b43_wl *wl = hw_to_b43_wl(hw); - struct b43_wldev *dev = wl->current_dev; - unsigned long flags; - - if (!dev) - return -ENODEV; - mutex_lock(&wl->mutex); - spin_lock_irqsave(&wl->irq_lock, flags); - B43_WARN_ON(wl->vif != vif); - if (conf->bssid) - memcpy(wl->bssid, conf->bssid, ETH_ALEN); - else - memset(wl->bssid, 0, ETH_ALEN); - if (b43_status(dev) >= B43_STAT_INITIALIZED) { - if (b43_is_mode(wl, NL80211_IFTYPE_AP) || - b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) { - B43_WARN_ON(vif->type != wl->if_type); - if (conf->changed & IEEE80211_IFCC_BEACON) - b43_update_templates(wl); - } else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) { - if (conf->changed & IEEE80211_IFCC_BEACON) - b43_update_templates(wl); - } - b43_write_mac_bssid_templates(dev); - } - spin_unlock_irqrestore(&wl->irq_lock, flags); - mutex_unlock(&wl->mutex); - - return 0; -} - /* Locking: wl->mutex */ static void b43_wireless_core_stop(struct b43_wldev *dev) { @@ -3793,7 +3794,7 @@ static void b43_wireless_core_stop(struct b43_wldev *dev) * setting the status to INITIALIZED, as the interrupt handler * won't care about IRQs then. */ spin_lock_irqsave(&wl->irq_lock, flags); - dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */ spin_unlock_irqrestore(&wl->irq_lock, flags); b43_synchronize_irq(dev); @@ -3834,7 +3835,7 @@ static int b43_wireless_core_start(struct b43_wldev *dev) /* Start data flow (TX/RX). */ b43_mac_enable(dev); - b43_interrupt_enable(dev, dev->irq_savedstate); + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); /* Start maintainance work */ b43_periodic_tasks_setup(dev); @@ -3997,9 +3998,9 @@ static void setup_struct_wldev_for_init(struct b43_wldev *dev) /* IRQ related flags */ dev->irq_reason = 0; memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); - dev->irq_savedstate = B43_IRQ_MASKTEMPLATE; + dev->irq_mask = B43_IRQ_MASKTEMPLATE; if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) - dev->irq_savedstate &= ~B43_IRQ_PHY_TXERR; + dev->irq_mask &= ~B43_IRQ_PHY_TXERR; dev->mac_suspended = 1; @@ -4326,7 +4327,6 @@ static int b43_op_start(struct ieee80211_hw *hw) struct b43_wldev *dev = wl->current_dev; int did_init = 0; int err = 0; - bool do_rfkill_exit = 0; /* Kill all old instance specific information to make sure * the card won't use it in the short timeframe between start @@ -4340,18 +4340,12 @@ static int b43_op_start(struct ieee80211_hw *hw) wl->beacon1_uploaded = 0; wl->beacon_templates_virgin = 1; - /* First register RFkill. - * LEDs that are registered later depend on it. */ - b43_rfkill_init(dev); - mutex_lock(&wl->mutex); if (b43_status(dev) < B43_STAT_INITIALIZED) { err = b43_wireless_core_init(dev); - if (err) { - do_rfkill_exit = 1; + if (err) goto out_mutex_unlock; - } did_init = 1; } @@ -4360,17 +4354,16 @@ static int b43_op_start(struct ieee80211_hw *hw) if (err) { if (did_init) b43_wireless_core_exit(dev); - do_rfkill_exit = 1; goto out_mutex_unlock; } } + /* XXX: only do if device doesn't support rfkill irq */ + wiphy_rfkill_start_polling(hw->wiphy); + out_mutex_unlock: mutex_unlock(&wl->mutex); - if (do_rfkill_exit) - b43_rfkill_exit(dev); - return err; } @@ -4379,7 +4372,6 @@ static void b43_op_stop(struct ieee80211_hw *hw) struct b43_wl *wl = hw_to_b43_wl(hw); struct b43_wldev *dev = wl->current_dev; - b43_rfkill_exit(dev); cancel_work_sync(&(wl->beacon_update_trigger)); mutex_lock(&wl->mutex); @@ -4449,7 +4441,6 @@ static const struct ieee80211_ops b43_hw_ops = { .remove_interface = b43_op_remove_interface, .config = b43_op_config, .bss_info_changed = b43_op_bss_info_changed, - .config_interface = b43_op_config_interface, .configure_filter = b43_op_configure_filter, .set_key = b43_op_set_key, .get_stats = b43_op_get_stats, @@ -4462,6 +4453,7 @@ static const struct ieee80211_ops b43_hw_ops = { .sta_notify = b43_op_sta_notify, .sw_scan_start = b43_op_sw_scan_start_notifier, .sw_scan_complete = b43_op_sw_scan_complete_notifier, + .rfkill_poll = b43_rfkill_poll, }; /* Hard-reset the chip. Do not call this directly. @@ -4764,6 +4756,7 @@ static int b43_wireless_init(struct ssb_device *dev) b43err(NULL, "Could not allocate ieee80211 device\n"); goto out; } + wl = hw_to_b43_wl(hw); /* fill hw info */ hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | @@ -4777,7 +4770,8 @@ static int b43_wireless_init(struct ssb_device *dev) BIT(NL80211_IFTYPE_WDS) | BIT(NL80211_IFTYPE_ADHOC); - hw->queues = b43_modparam_qos ? 4 : 1; + hw->queues = modparam_qos ? 4 : 1; + wl->mac80211_initially_registered_queues = hw->queues; hw->max_rates = 2; SET_IEEE80211_DEV(hw, dev->dev); if (is_valid_ether_addr(sprom->et1mac)) @@ -4785,9 +4779,7 @@ static int b43_wireless_init(struct ssb_device *dev) else SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); - /* Get and initialize struct b43_wl */ - wl = hw_to_b43_wl(hw); - memset(wl, 0, sizeof(*wl)); + /* Initialize struct b43_wl */ wl->hw = hw; spin_lock_init(&wl->irq_lock); rwlock_init(&wl->tx_lock); @@ -4853,8 +4845,13 @@ static void b43_remove(struct ssb_device *dev) cancel_work_sync(&wldev->restart_work); B43_WARN_ON(!wl); - if (wl->current_dev == wldev) + if (wl->current_dev == wldev) { + /* Restore the queues count before unregistering, because firmware detect + * might have modified it. Restoring is important, so the networking + * stack can properly free resources. */ + wl->hw->queues = wl->mac80211_initially_registered_queues; ieee80211_unregister_hw(wl->hw); + } b43_one_core_detach(dev); @@ -4949,7 +4946,7 @@ static struct ssb_driver b43_ssb_driver = { static void b43_print_driverinfo(void) { const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", - *feat_leds = "", *feat_rfkill = ""; + *feat_leds = ""; #ifdef CONFIG_B43_PCI_AUTOSELECT feat_pci = "P"; @@ -4963,14 +4960,11 @@ static void b43_print_driverinfo(void) #ifdef CONFIG_B43_LEDS feat_leds = "L"; #endif -#ifdef CONFIG_B43_RFKILL - feat_rfkill = "R"; -#endif printk(KERN_INFO "Broadcom 43xx driver loaded " - "[ Features: %s%s%s%s%s, Firmware-ID: " + "[ Features: %s%s%s%s, Firmware-ID: " B43_SUPPORTED_FIRMWARE_ID " ]\n", feat_pci, feat_pcmcia, feat_nphy, - feat_leds, feat_rfkill); + feat_leds); } static int __init b43_init(void) |