diff options
author | John W. Linville <linville@tuxdriver.com> | 2011-04-04 16:10:36 -0400 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-04-04 16:10:36 -0400 |
commit | 18d6a0f5b6693d630a8da9dfd6cac1ea4e5dccab (patch) | |
tree | fe8405c00398b6b74d76c7dec61196732a4e33b1 /drivers/net/wireless/iwlwifi/iwl-agn.c | |
parent | 83860c594f65945b1a2c99e84338e1145cd34890 (diff) | |
parent | 7eaa6a5e964f1ab02d849bda36950c0d30be8ce2 (diff) | |
download | op-kernel-dev-18d6a0f5b6693d630a8da9dfd6cac1ea4e5dccab.zip op-kernel-dev-18d6a0f5b6693d630a8da9dfd6cac1ea4e5dccab.tar.gz |
Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-agn.c | 266 |
1 files changed, 21 insertions, 245 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 7adc60e..28ac0d4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -409,7 +409,7 @@ int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, * Tell nic where to find circular buffer of Tx Frame Descriptors for * given Tx queue, and enable the DMA channel used for that queue. * - * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA + * supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA * channels supported in hardware. */ int iwl_hw_tx_queue_init(struct iwl_priv *priv, @@ -845,191 +845,6 @@ static inline void iwl_synchronize_irq(struct iwl_priv *priv) tasklet_kill(&priv->irq_tasklet); } -static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) -{ - u32 inta, handled = 0; - u32 inta_fh; - unsigned long flags; - u32 i; -#ifdef CONFIG_IWLWIFI_DEBUG - u32 inta_mask; -#endif - - spin_lock_irqsave(&priv->lock, flags); - - /* Ack/clear/reset pending uCode interrupts. - * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, - * and will clear only when CSR_FH_INT_STATUS gets cleared. */ - inta = iwl_read32(priv, CSR_INT); - iwl_write32(priv, CSR_INT, inta); - - /* Ack/clear/reset pending flow-handler (DMA) interrupts. - * Any new interrupts that happen after this, either while we're - * in this tasklet, or later, will show up in next ISR/tasklet. */ - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & IWL_DL_ISR) { - /* just for debug */ - inta_mask = iwl_read32(priv, CSR_INT_MASK); - IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", - inta, inta_mask, inta_fh); - } -#endif - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not - * atomic, make sure that inta covers all the interrupts that - * we've discovered, even if FH interrupt came in just after - * reading CSR_INT. */ - if (inta_fh & CSR49_FH_INT_RX_MASK) - inta |= CSR_INT_BIT_FH_RX; - if (inta_fh & CSR49_FH_INT_TX_MASK) - inta |= CSR_INT_BIT_FH_TX; - - /* Now service all interrupt bits discovered above. */ - if (inta & CSR_INT_BIT_HW_ERR) { - IWL_ERR(priv, "Hardware error detected. Restarting.\n"); - - /* Tell the device to stop sending interrupts */ - iwl_disable_interrupts(priv); - - priv->isr_stats.hw++; - iwl_irq_handle_error(priv); - - handled |= CSR_INT_BIT_HW_ERR; - - return; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { - /* NIC fires this, but we don't use it, redundant with WAKEUP */ - if (inta & CSR_INT_BIT_SCD) { - IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " - "the frame/frames.\n"); - priv->isr_stats.sch++; - } - - /* Alive notification via Rx interrupt will do the real work */ - if (inta & CSR_INT_BIT_ALIVE) { - IWL_DEBUG_ISR(priv, "Alive interrupt\n"); - priv->isr_stats.alive++; - } - } -#endif - /* Safely ignore these bits for debug checks below */ - inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); - - /* HW RF KILL switch toggled */ - if (inta & CSR_INT_BIT_RF_KILL) { - int hw_rf_kill = 0; - if (!(iwl_read32(priv, CSR_GP_CNTRL) & - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)) - hw_rf_kill = 1; - - IWL_WARN(priv, "RF_KILL bit toggled to %s.\n", - hw_rf_kill ? "disable radio" : "enable radio"); - - priv->isr_stats.rfkill++; - - /* driver only loads ucode once setting the interface up. - * the driver allows loading the ucode even if the radio - * is killed. Hence update the killswitch state here. The - * rfkill handler will care about restarting if needed. - */ - if (!test_bit(STATUS_ALIVE, &priv->status)) { - if (hw_rf_kill) - set_bit(STATUS_RF_KILL_HW, &priv->status); - else - clear_bit(STATUS_RF_KILL_HW, &priv->status); - wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill); - } - - handled |= CSR_INT_BIT_RF_KILL; - } - - /* Chip got too hot and stopped itself */ - if (inta & CSR_INT_BIT_CT_KILL) { - IWL_ERR(priv, "Microcode CT kill error detected.\n"); - priv->isr_stats.ctkill++; - handled |= CSR_INT_BIT_CT_KILL; - } - - /* Error detected by uCode */ - if (inta & CSR_INT_BIT_SW_ERR) { - IWL_ERR(priv, "Microcode SW error detected. " - " Restarting 0x%X.\n", inta); - priv->isr_stats.sw++; - iwl_irq_handle_error(priv); - handled |= CSR_INT_BIT_SW_ERR; - } - - /* - * uCode wakes up after power-down sleep. - * Tell device about any new tx or host commands enqueued, - * and about any Rx buffers made available while asleep. - */ - if (inta & CSR_INT_BIT_WAKEUP) { - IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); - iwl_rx_queue_update_write_ptr(priv, &priv->rxq); - for (i = 0; i < priv->hw_params.max_txq_num; i++) - iwl_txq_update_write_ptr(priv, &priv->txq[i]); - priv->isr_stats.wakeup++; - handled |= CSR_INT_BIT_WAKEUP; - } - - /* All uCode command responses, including Tx command responses, - * Rx "responses" (frame-received notification), and other - * notifications from uCode come through here*/ - if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { - iwl_rx_handle(priv); - priv->isr_stats.rx++; - handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); - } - - /* This "Tx" DMA channel is used only for loading uCode */ - if (inta & CSR_INT_BIT_FH_TX) { - IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); - priv->isr_stats.tx++; - handled |= CSR_INT_BIT_FH_TX; - /* Wake up uCode load routine, now that load is complete */ - priv->ucode_write_complete = 1; - wake_up_interruptible(&priv->wait_command_queue); - } - - if (inta & ~handled) { - IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); - priv->isr_stats.unhandled++; - } - - if (inta & ~(priv->inta_mask)) { - IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", - inta & ~priv->inta_mask); - IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); - } - - /* Re-enable all interrupts */ - /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &priv->status)) - iwl_enable_interrupts(priv); - /* Re-enable RF_KILL if it occurred */ - else if (handled & CSR_INT_BIT_RF_KILL) - iwl_enable_rfkill_int(priv); - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { - inta = iwl_read32(priv, CSR_INT); - inta_mask = iwl_read32(priv, CSR_INT_MASK); - inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); - IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " - "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); - } -#endif -} - /* tasklet for iwlagn interrupt */ static void iwl_irq_tasklet(struct iwl_priv *priv) { @@ -1171,7 +986,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); iwl_write32(priv, CSR_FH_INT_STATUS, - CSR49_FH_INT_RX_MASK); + CSR_FH_INT_RX_MASK); } if (inta & CSR_INT_BIT_RX_PERIODIC) { handled |= CSR_INT_BIT_RX_PERIODIC; @@ -1209,7 +1024,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) /* This "Tx" DMA channel is used only for loading uCode */ if (inta & CSR_INT_BIT_FH_TX) { - iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_TX_MASK); + iwl_write32(priv, CSR_FH_INT_STATUS, CSR_FH_INT_TX_MASK); IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); priv->isr_stats.tx++; handled |= CSR_INT_BIT_FH_TX; @@ -1444,28 +1259,19 @@ static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, switch (api_ver) { default: - /* - * 4965 doesn't revision the firmware file format - * along with the API version, it always uses v1 - * file format. - */ - if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != - CSR_HW_REV_TYPE_4965) { - hdr_size = 28; - if (ucode_raw->size < hdr_size) { - IWL_ERR(priv, "File size too small!\n"); - return -EINVAL; - } - pieces->build = le32_to_cpu(ucode->u.v2.build); - pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); - pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); - pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); - pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); - pieces->boot_size = le32_to_cpu(ucode->u.v2.boot_size); - src = ucode->u.v2.data; - break; + hdr_size = 28; + if (ucode_raw->size < hdr_size) { + IWL_ERR(priv, "File size too small!\n"); + return -EINVAL; } - /* fall through for 4965 */ + pieces->build = le32_to_cpu(ucode->u.v2.build); + pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); + pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); + pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); + pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); + pieces->boot_size = le32_to_cpu(ucode->u.v2.boot_size); + src = ucode->u.v2.data; + break; case 0: case 1: case 2: @@ -3348,6 +3154,10 @@ int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, } break; case IEEE80211_AMPDU_TX_OPERATIONAL: + buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); + + iwlagn_txq_agg_queue_setup(priv, sta, tid, buf_size); + /* * If the limit is 0, then it wasn't initialised yet, * use the default. We can do that since we take the @@ -3750,12 +3560,8 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) priv->watchdog.data = (unsigned long)priv; priv->watchdog.function = iwl_bg_watchdog; - if (!priv->cfg->base_params->use_isr_legacy) - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl_irq_tasklet, (unsigned long)priv); - else - tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) - iwl_irq_tasklet_legacy, (unsigned long)priv); + tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) + iwl_irq_tasklet, (unsigned long)priv); } static void iwl_cancel_deferred_work(struct iwl_priv *priv) @@ -3968,14 +3774,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) * 1. Allocating HW data ************************/ - /* Disabling hardware scan means that mac80211 will perform scans - * "the hard way", rather than using device's scan. */ - if (cfg->mod_params->disable_hw_scan) { - dev_printk(KERN_DEBUG, &(pdev->dev), - "sw scan support is deprecated\n"); - iwlagn_hw_ops.hw_scan = NULL; - } - hw = iwl_alloc_all(cfg); if (!hw) { err = -ENOMEM; @@ -4585,43 +4383,21 @@ module_exit(iwl_exit); module_init(iwl_init); #ifdef CONFIG_IWLWIFI_DEBUG -module_param_named(debug50, iwl_debug_level, uint, S_IRUGO); -MODULE_PARM_DESC(debug50, "50XX debug output mask (deprecated)"); module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "debug output mask"); #endif -module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO); -MODULE_PARM_DESC(swcrypto50, - "using crypto in software (default 0 [hardware]) (deprecated)"); module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); -module_param_named(queues_num50, - iwlagn_mod_params.num_of_queues, int, S_IRUGO); -MODULE_PARM_DESC(queues_num50, - "number of hw queues in 50xx series (deprecated)"); module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); MODULE_PARM_DESC(queues_num, "number of hw queues."); -module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO); -MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)"); module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); -module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K, - int, S_IRUGO); -MODULE_PARM_DESC(amsdu_size_8K50, - "enable 8K amsdu size in 50XX series (deprecated)"); module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, int, S_IRUGO); MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); -module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO); -MODULE_PARM_DESC(fw_restart50, - "restart firmware in case of error (deprecated)"); module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); -module_param_named( - disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO); -MODULE_PARM_DESC(disable_hw_scan, - "disable hardware scanning (default 0) (deprecated)"); module_param_named(ucode_alternative, iwlagn_wanted_ucode_alternative, int, S_IRUGO); |