diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-core.c | 691 |
1 files changed, 424 insertions, 267 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 2dc928755454..574d36658702 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -47,6 +47,37 @@ MODULE_VERSION(IWLWIFI_VERSION); MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); MODULE_LICENSE("GPL"); +static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = { + {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP, + 0, COEX_UNASSOC_IDLE_FLAGS}, + {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP, + 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS}, + {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP, + 0, COEX_UNASSOC_AUTO_SCAN_FLAGS}, + {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP, + 0, COEX_CALIBRATION_FLAGS}, + {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP, + 0, COEX_PERIODIC_CALIBRATION_FLAGS}, + {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP, + 0, COEX_CONNECTION_ESTAB_FLAGS}, + {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP, + 0, COEX_ASSOCIATED_IDLE_FLAGS}, + {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP, + 0, COEX_ASSOC_MANUAL_SCAN_FLAGS}, + {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP, + 0, COEX_ASSOC_AUTO_SCAN_FLAGS}, + {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP, + 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS}, + {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS}, + {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS}, + {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP, + 0, COEX_STAND_ALONE_DEBUG_FLAGS}, + {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP, + 0, COEX_IPAN_ASSOC_LEVEL_FLAGS}, + {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS}, + {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS} +}; + #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ IWL_RATE_SISO_##s##M_PLCP, \ @@ -178,6 +209,7 @@ u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) } return ant; } +EXPORT_SYMBOL(iwl_toggle_tx_ant); const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; EXPORT_SYMBOL(iwl_bcast_addr); @@ -224,7 +256,10 @@ int iwl_hw_nic_init(struct iwl_priv *priv) /* nic_init */ spin_lock_irqsave(&priv->lock, flags); priv->cfg->ops->lib->apm_ops.init(priv); - iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); + + /* Set interrupt coalescing timer to 512 usecs */ + iwl_write8(priv, CSR_INT_COALESCING, 512 / 32); + spin_unlock_irqrestore(&priv->lock, flags); ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); @@ -416,8 +451,7 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; ht_info->cap |= IEEE80211_HT_CAP_SGI_20; ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & - (WLAN_HT_CAP_SM_PS_DISABLED << 2)); - + (priv->cfg->sm_ps_mode << 2)); max_bit_rate = MAX_BIT_RATE_20_MHZ; if (priv->hw_params.ht40_channel & BIT(band)) { ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; @@ -452,28 +486,6 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, } } -static void iwlcore_init_hw_rates(struct iwl_priv *priv, - struct ieee80211_rate *rates) -{ - int i; - - for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { - rates[i].bitrate = iwl_rates[i].ieee * 5; - rates[i].hw_value = i; /* Rate scaling will work on indexes */ - rates[i].hw_value_short = i; - rates[i].flags = 0; - if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { - /* - * If CCK != 1M then set short preamble rate flag. - */ - rates[i].flags |= - (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? - 0 : IEEE80211_RATE_SHORT_PREAMBLE; - } - } -} - - /** * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom */ @@ -605,11 +617,27 @@ void iwlcore_free_geos(struct iwl_priv *priv) } EXPORT_SYMBOL(iwlcore_free_geos); +/* + * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this + * function. + */ +void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info, + __le32 *tx_flags) +{ + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { + *tx_flags |= TX_CMD_FLG_RTS_MSK; + *tx_flags &= ~TX_CMD_FLG_CTS_MSK; + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + *tx_flags &= ~TX_CMD_FLG_RTS_MSK; + *tx_flags |= TX_CMD_FLG_CTS_MSK; + } +} +EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag); + static bool is_single_rx_stream(struct iwl_priv *priv) { return !priv->current_ht_config.is_ht || - ((priv->current_ht_config.mcs.rx_mask[1] == 0) && - (priv->current_ht_config.mcs.rx_mask[2] == 0)); + priv->current_ht_config.single_chain_sufficient; } static u8 iwl_is_channel_extension(struct iwl_priv *priv, @@ -635,10 +663,9 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, struct ieee80211_sta_ht_cap *sta_ht_inf) { - struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; + struct iwl_ht_config *ht_conf = &priv->current_ht_config; - if ((!iwl_ht_conf->is_ht) || - (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ)) + if (!ht_conf->is_ht || !ht_conf->is_40mhz) return 0; /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 @@ -654,7 +681,7 @@ u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, #endif return iwl_is_channel_extension(priv, priv->band, le16_to_cpu(priv->staging_rxon.channel), - iwl_ht_conf->extension_chan_offset); + ht_conf->extension_chan_offset); } EXPORT_SYMBOL(iwl_is_ht40_tx_allowed); @@ -878,11 +905,11 @@ u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); -void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) +void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) { struct iwl_rxon_cmd *rxon = &priv->staging_rxon; - if (!ht_info->is_ht) { + if (!ht_conf->is_ht) { rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | RXON_FLG_HT40_PROT_MSK | @@ -893,7 +920,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) /* FIXME: if the definition of ht_protection changed, the "translation" * will be needed for rxon->flags */ - rxon->flags |= cpu_to_le32(ht_info->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); + rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); /* Set up channel bandwidth: * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ @@ -902,10 +929,10 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); if (iwl_is_ht40_tx_allowed(priv, NULL)) { /* pure ht40 */ - if (ht_info->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { + if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; /* Note: control channel is opposite of extension channel */ - switch (ht_info->extension_chan_offset) { + switch (ht_conf->extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; break; @@ -915,7 +942,7 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) } } else { /* Note: control channel is opposite of extension channel */ - switch (ht_info->extension_chan_offset) { + switch (ht_conf->extension_chan_offset) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; @@ -938,14 +965,10 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) if (priv->cfg->ops->hcmd->set_rxon_chain) priv->cfg->ops->hcmd->set_rxon_chain(priv); - IWL_DEBUG_ASSOC(priv, "supported HT rate 0x%X 0x%X 0x%X " - "rxon flags 0x%X operation mode :0x%X " + IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " "extension channel offset 0x%x\n", - ht_info->mcs.rx_mask[0], - ht_info->mcs.rx_mask[1], - ht_info->mcs.rx_mask[2], - le32_to_cpu(rxon->flags), ht_info->ht_protection, - ht_info->extension_chan_offset); + le32_to_cpu(rxon->flags), ht_conf->ht_protection, + ht_conf->extension_chan_offset); return; } EXPORT_SYMBOL(iwl_set_rxon_ht); @@ -955,44 +978,50 @@ EXPORT_SYMBOL(iwl_set_rxon_ht); #define IWL_NUM_IDLE_CHAINS_DUAL 2 #define IWL_NUM_IDLE_CHAINS_SINGLE 1 -/* Determine how many receiver/antenna chains to use. - * More provides better reception via diversity. Fewer saves power. +/* + * Determine how many receiver/antenna chains to use. + * + * More provides better reception via diversity. Fewer saves power + * at the expense of throughput, but only when not in powersave to + * start with. + * * MIMO (dual stream) requires at least 2, but works better with 3. * This does not determine *which* chains to use, just how many. */ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) { - bool is_single = is_single_rx_stream(priv); - bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); - /* # of Rx chains to use when expecting MIMO. */ - if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == - WLAN_HT_CAP_SM_PS_STATIC))) + if (is_single_rx_stream(priv)) return IWL_NUM_RX_CHAINS_SINGLE; else return IWL_NUM_RX_CHAINS_MULTIPLE; } +/* + * When we are in power saving mode, unless device support spatial + * multiplexing power save, use the active count for rx chain count. + */ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) { - int idle_cnt; + int idle_cnt = active_cnt; bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); + /* # Rx chains when idling and maybe trying to save power */ - switch (priv->current_ht_config.sm_ps) { + switch (priv->cfg->sm_ps_mode) { case WLAN_HT_CAP_SM_PS_STATIC: + idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; + break; case WLAN_HT_CAP_SM_PS_DYNAMIC: idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL : - IWL_NUM_IDLE_CHAINS_SINGLE; + IWL_NUM_IDLE_CHAINS_SINGLE; break; case WLAN_HT_CAP_SM_PS_DISABLED: - idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; break; case WLAN_HT_CAP_SM_PS_INVALID: default: - IWL_ERR(priv, "invalid mimo ps mode %d\n", - priv->current_ht_config.sm_ps); + IWL_ERR(priv, "invalid sm_ps mode %u\n", + priv->cfg->sm_ps_mode); WARN_ON(1); - idle_cnt = -1; break; } return idle_cnt; @@ -1005,7 +1034,7 @@ static u8 iwl_count_chain_bitmap(u32 chain_bitmap) res = (chain_bitmap & BIT(0)) >> 0; res += (chain_bitmap & BIT(1)) >> 1; res += (chain_bitmap & BIT(2)) >> 2; - res += (chain_bitmap & BIT(4)) >> 4; + res += (chain_bitmap & BIT(3)) >> 3; return res; } @@ -1281,18 +1310,28 @@ static void iwl_set_rate(struct iwl_priv *priv) void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; struct iwl_csa_notification *csa = &(pkt->u.csa_notif); - IWL_DEBUG_11H(priv, "CSA notif: channel %d, status %d\n", - le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); - rxon->channel = csa->channel; - priv->staging_rxon.channel = csa->channel; + + if (priv->switch_rxon.switch_in_progress) { + if (!le32_to_cpu(csa->status) && + (csa->channel == priv->switch_rxon.channel)) { + rxon->channel = csa->channel; + priv->staging_rxon.channel = csa->channel; + IWL_DEBUG_11H(priv, "CSA notif: channel %d\n", + le16_to_cpu(csa->channel)); + } else + IWL_ERR(priv, "CSA notif (fail) : channel %d\n", + le16_to_cpu(csa->channel)); + + priv->switch_rxon.switch_in_progress = false; + } } EXPORT_SYMBOL(iwl_rx_csa); #ifdef CONFIG_IWLWIFI_DEBUG -static void iwl_print_rx_config_cmd(struct iwl_priv *priv) +void iwl_print_rx_config_cmd(struct iwl_priv *priv) { struct iwl_rxon_cmd *rxon = &priv->staging_rxon; @@ -1310,6 +1349,7 @@ static void iwl_print_rx_config_cmd(struct iwl_priv *priv) IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); } +EXPORT_SYMBOL(iwl_print_rx_config_cmd); #endif /** * iwl_irq_handle_error - called for HW or SW error interrupt from card @@ -1322,12 +1362,11 @@ void iwl_irq_handle_error(struct iwl_priv *priv) /* Cancel currently queued command. */ clear_bit(STATUS_HCMD_ACTIVE, &priv->status); + priv->cfg->ops->lib->dump_nic_error_log(priv); + priv->cfg->ops->lib->dump_nic_event_log(priv, false); #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) { - priv->cfg->ops->lib->dump_nic_error_log(priv); - priv->cfg->ops->lib->dump_nic_event_log(priv); + if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) iwl_print_rx_config_cmd(priv); - } #endif wake_up_interruptible(&priv->wait_command_queue); @@ -1346,6 +1385,160 @@ void iwl_irq_handle_error(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_irq_handle_error); +int iwl_apm_stop_master(struct iwl_priv *priv) +{ + int ret = 0; + + /* stop device's busmaster DMA activity */ + iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); + + ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, + CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); + if (ret) + IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n"); + + IWL_DEBUG_INFO(priv, "stop master\n"); + + return ret; +} +EXPORT_SYMBOL(iwl_apm_stop_master); + +void iwl_apm_stop(struct iwl_priv *priv) +{ + IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n"); + + /* Stop device's DMA activity */ + iwl_apm_stop_master(priv); + + /* Reset the entire device */ + iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + /* + * Clear "initialization complete" bit to move adapter from + * D0A* (powered-up Active) --> D0U* (Uninitialized) state. + */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); +} +EXPORT_SYMBOL(iwl_apm_stop); + + +/* + * Start up NIC's basic functionality after it has been reset + * (e.g. after platform boot, or shutdown via iwl_apm_stop()) + * NOTE: This does not load uCode nor start the embedded processor + */ +int iwl_apm_init(struct iwl_priv *priv) +{ + int ret = 0; + u16 lctl; + + IWL_DEBUG_INFO(priv, "Init card's basic functions\n"); + + /* + * Use "set_bit" below rather than "write", to preserve any hardware + * bits already set by default after reset. + */ + + /* Disable L0S exit timer (platform NMI Work/Around) */ + iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + + /* + * Disable L0s without affecting L1; + * don't wait for ICH L0s (ICH bug W/A) + */ + iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); + + /* Set FH wait threshold to maximum (HW error during stress W/A) */ + iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL); + + /* + * Enable HAP INTA (interrupt from management bus) to + * wake device's PCI Express link L1a -> L0s + * NOTE: This is no-op for 3945 (non-existant bit) + */ + iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); + + /* + * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition. + * Check if BIOS (or OS) enabled L1-ASPM on this device. + * If so (likely), disable L0S, so device moves directly L0->L1; + * costs negligible amount of power savings. + * If not (unlikely), enable L0S, so there is at least some + * power savings, even without L1. + */ + if (priv->cfg->set_l0s) { + lctl = iwl_pcie_link_ctl(priv); + if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == + PCI_CFG_LINK_CTRL_VAL_L1_EN) { + /* L1-ASPM enabled; disable(!) L0S */ + iwl_set_bit(priv, CSR_GIO_REG, + CSR_GIO_REG_VAL_L0S_ENABLED); + IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n"); + } else { + /* L1-ASPM disabled; enable(!) L0S */ + iwl_clear_bit(priv, CSR_GIO_REG, + CSR_GIO_REG_VAL_L0S_ENABLED); + IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n"); + } + } + + /* Configure analog phase-lock-loop before activating to D0A */ + if (priv->cfg->pll_cfg_val) + iwl_set_bit(priv, CSR_ANA_PLL_CFG, priv->cfg->pll_cfg_val); + + /* + * Set "initialization complete" bit to move adapter from + * D0U* --> D0A* (powered-up active) state. + */ + iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + + /* + * Wait for clock stabilization; once stabilized, access to + * device-internal resources is supported, e.g. iwl_write_prph() + * and accesses to uCode SRAM. + */ + ret = iwl_poll_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + if (ret < 0) { + IWL_DEBUG_INFO(priv, "Failed to init the card\n"); + goto out; + } + + /* + * Enable DMA and BSM (if used) clocks, wait for them to stabilize. + * BSM (Boostrap State Machine) is only in 3945 and 4965; + * later devices (i.e. 5000 and later) have non-volatile SRAM, + * and don't need BSM to restore data after power-saving sleep. + * + * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits + * do not disable clocks. This preserves any hardware bits already + * set by default in "CLK_CTRL_REG" after reset. + */ + if (priv->cfg->use_bsm) + iwl_write_prph(priv, APMG_CLK_EN_REG, + APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); + else + iwl_write_prph(priv, APMG_CLK_EN_REG, + APMG_CLK_VAL_DMA_CLK_RQT); + udelay(20); + + /* Disable L1-Active */ + iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + +out: + return ret; +} +EXPORT_SYMBOL(iwl_apm_init); + + + void iwl_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, @@ -1393,73 +1586,14 @@ void iwl_configure_filter(struct ieee80211_hw *hw, } EXPORT_SYMBOL(iwl_configure_filter); -int iwl_setup_mac(struct iwl_priv *priv) -{ - int ret; - struct ieee80211_hw *hw = priv->hw; - hw->rate_control_algorithm = "iwl-agn-rs"; - - /* Tell mac80211 our characteristics */ - hw->flags = IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_NOISE_DBM | - IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_SPECTRUM_MGMT; - - if (!priv->cfg->broken_powersave) - hw->flags |= IEEE80211_HW_SUPPORTS_PS | - IEEE80211_HW_SUPPORTS_DYNAMIC_PS; - - hw->wiphy->interface_modes = - BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_ADHOC); - - hw->wiphy->custom_regulatory = true; - - /* Firmware does not support this */ - hw->wiphy->disable_beacon_hints = true; - - /* - * For now, disable PS by default because it affects - * RX performance significantly. - */ - hw->wiphy->ps_default = false; - - hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; - /* we create the 802.11 header and a zero-length SSID element */ - hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; - - /* Default value; 4 EDCA QOS priorities */ - hw->queues = 4; - - hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; - - if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = - &priv->bands[IEEE80211_BAND_2GHZ]; - if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) - priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = - &priv->bands[IEEE80211_BAND_5GHZ]; - - ret = ieee80211_register_hw(priv->hw); - if (ret) { - IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); - return ret; - } - priv->mac80211_registered = 1; - - return 0; -} -EXPORT_SYMBOL(iwl_setup_mac); - int iwl_set_hw_params(struct iwl_priv *priv) { priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; if (priv->cfg->mod_params->amsdu_size_8K) - priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; + priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); else - priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; - priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; + priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; @@ -1471,71 +1605,6 @@ int iwl_set_hw_params(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_set_hw_params); -int iwl_init_drv(struct iwl_priv *priv) -{ - int ret; - - priv->ibss_beacon = NULL; - - spin_lock_init(&priv->lock); - spin_lock_init(&priv->sta_lock); - spin_lock_init(&priv->hcmd_lock); - - INIT_LIST_HEAD(&priv->free_frames); - - mutex_init(&priv->mutex); - - /* Clear the driver's (not device's) station table */ - iwl_clear_stations_table(priv); - - priv->data_retry_limit = -1; - priv->ieee_channels = NULL; - priv->ieee_rates = NULL; - priv->band = IEEE80211_BAND_2GHZ; - - priv->iw_mode = NL80211_IFTYPE_STATION; - - priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; - - /* Choose which receivers/antennas to use */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv); - - iwl_init_scan_params(priv); - - iwl_reset_qos(priv); - - priv->qos_data.qos_active = 0; - priv->qos_data.qos_cap.val = 0; - - priv->rates_mask = IWL_RATES_MASK; - /* Set the tx_power_user_lmt to the lowest power level - * this value will get overwritten by channel max power avg - * from eeprom */ - priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MIN; - - ret = iwl_init_channel_map(priv); - if (ret) { - IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); - goto err; - } - - ret = iwlcore_init_geos(priv); - if (ret) { - IWL_ERR(priv, "initializing geos failed: %d\n", ret); - goto err_free_channel_map; - } - iwlcore_init_hw_rates(priv, priv->ieee_rates); - - return 0; - -err_free_channel_map: - iwl_free_channel_map(priv); -err: - return ret; -} -EXPORT_SYMBOL(iwl_init_drv); - int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) { int ret = 0; @@ -1583,15 +1652,6 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) } EXPORT_SYMBOL(iwl_set_tx_power); -void iwl_uninit_drv(struct iwl_priv *priv) -{ - iwl_calib_free_results(priv); - iwlcore_free_geos(priv); - iwl_free_channel_map(priv); - kfree(priv->scan); -} -EXPORT_SYMBOL(iwl_uninit_drv); - #define ICT_COUNT (PAGE_SIZE/sizeof(u32)) /* Free dram table */ @@ -1915,9 +1975,9 @@ EXPORT_SYMBOL(iwl_isr_legacy); int iwl_send_bt_config(struct iwl_priv *priv) { struct iwl_bt_cmd bt_cmd = { - .flags = 3, - .lead_time = 0xAA, - .max_kill = 1, + .flags = BT_COEX_MODE_4W, + .lead_time = BT_LEAD_TIME_DEF, + .max_kill = BT_MAX_KILL_DEF, .kill_ack_mask = 0, .kill_cts_mask = 0, }; @@ -1927,16 +1987,21 @@ int iwl_send_bt_config(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_send_bt_config); -int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) +int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) { - u32 stat_flags = 0; - struct iwl_host_cmd cmd = { - .id = REPLY_STATISTICS_CMD, - .flags = flags, - .len = sizeof(stat_flags), - .data = (u8 *) &stat_flags, + struct iwl_statistics_cmd statistics_cmd = { + .configuration_flags = + clear ? IWL_STATS_CONF_CLEAR_STATS : 0, }; - return iwl_send_cmd(priv, &cmd); + + if (flags & CMD_ASYNC) + return iwl_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD, + sizeof(struct iwl_statistics_cmd), + &statistics_cmd, NULL); + else + return iwl_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, + sizeof(struct iwl_statistics_cmd), + &statistics_cmd); } EXPORT_SYMBOL(iwl_send_statistics_request); @@ -2077,10 +2142,7 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); priv->thermal_throttle.ct_kill_toggle = false; - switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) { - case CSR_HW_REV_TYPE_1000: - case CSR_HW_REV_TYPE_6x00: - case CSR_HW_REV_TYPE_6x50: + if (priv->cfg->support_ct_kill_exit) { adv_cmd.critical_temperature_enter = cpu_to_le32(priv->hw_params.ct_kill_threshold); adv_cmd.critical_temperature_exit = @@ -2097,8 +2159,7 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv) "exit is %d\n", priv->hw_params.ct_kill_threshold, priv->hw_params.ct_kill_exit_threshold); - break; - default: + } else { cmd.critical_temperature_R = cpu_to_le32(priv->hw_params.ct_kill_threshold); @@ -2111,7 +2172,6 @@ void iwl_rf_kill_ct_config(struct iwl_priv *priv) "succeeded, " "critical temperature is %d\n", priv->hw_params.ct_kill_threshold); - break; } } EXPORT_SYMBOL(iwl_rf_kill_ct_config); @@ -2143,7 +2203,7 @@ void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { #ifdef CONFIG_IWLWIFI_DEBUG - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n", sleep->pm_sleep_mode, sleep->pm_wakeup_src); @@ -2154,7 +2214,7 @@ EXPORT_SYMBOL(iwl_rx_pm_sleep_notif); void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + struct iwl_rx_packet *pkt = rxb_addr(rxb); u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " "notification for %s:\n", len, @@ -2166,7 +2226,7 @@ EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif); void iwl_rx_reply_error(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) { - struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; + struct iwl_rx_packet *pkt = rxb_addr(rxb); IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) " "seq 0x%04X ser 0x%08X\n", @@ -2228,42 +2288,58 @@ int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, EXPORT_SYMBOL(iwl_mac_conf_tx); static void iwl_ht_conf(struct iwl_priv *priv, - struct ieee80211_bss_conf *bss_conf) + struct ieee80211_bss_conf *bss_conf) { - struct ieee80211_sta_ht_cap *ht_conf; - struct iwl_ht_info *iwl_conf = &priv->current_ht_config; + struct iwl_ht_config *ht_conf = &priv->current_ht_config; struct ieee80211_sta *sta; IWL_DEBUG_MAC80211(priv, "enter: \n"); - if (!iwl_conf->is_ht) + if (!ht_conf->is_ht) return; + ht_conf->ht_protection = + bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; + ht_conf->non_GF_STA_present = + !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); - /* - * It is totally wrong to base global information on something - * that is valid only when associated, alas, this driver works - * that way and I don't know how to fix it. - */ + ht_conf->single_chain_sufficient = false; - rcu_read_lock(); - sta = ieee80211_find_sta(priv->hw, priv->bssid); - if (!sta) { + switch (priv->iw_mode) { + case NL80211_IFTYPE_STATION: + rcu_read_lock(); + sta = ieee80211_find_sta(priv->vif, priv->bssid); + if (sta) { + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + int maxstreams; + + maxstreams = (ht_cap->mcs.tx_params & + IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) + >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; + maxstreams += 1; + + if ((ht_cap->mcs.rx_mask[1] == 0) && + (ht_cap->mcs.rx_mask[2] == 0)) + ht_conf->single_chain_sufficient = true; + if (maxstreams <= 1) + ht_conf->single_chain_sufficient = true; + } else { + /* + * If at all, this can only happen through a race + * when the AP disconnects us while we're still + * setting up the connection, in that case mac80211 + * will soon tell us about that. + */ + ht_conf->single_chain_sufficient = true; + } rcu_read_unlock(); - return; + break; + case NL80211_IFTYPE_ADHOC: + ht_conf->single_chain_sufficient = true; + break; + default: + break; } - ht_conf = &sta->ht_cap; - - iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); - - memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); - - iwl_conf->ht_protection = - bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; - iwl_conf->non_GF_STA_present = - !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); - - rcu_read_unlock(); IWL_DEBUG_MAC80211(priv, "leave\n"); } @@ -2387,6 +2463,8 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, priv->timestamp = bss_conf->timestamp; priv->assoc_capability = bss_conf->assoc_capability; + iwl_led_associate(priv); + /* * We have just associated, don't start scan too early * leave time for EAPOL exchange to complete. @@ -2397,9 +2475,20 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; if (!iwl_is_rfkill(priv)) priv->cfg->ops->lib->post_associate(priv); - } else + } else { priv->assoc_id = 0; + iwl_led_disassociate(priv); + /* + * inform the ucode that there is no longer an + * association and that no more packets should be + * send + */ + priv->staging_rxon.filter_flags &= + ~RXON_FILTER_ASSOC_MSK; + priv->staging_rxon.assoc_id = 0; + iwlcore_commit_rxon(priv); + } } if (changes && iwl_is_associated(priv) && priv->assoc_id) { @@ -2414,6 +2503,14 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw, } } + if ((changes & BSS_CHANGED_BEACON_ENABLED) && + vif->bss_conf.enable_beacon) { + memcpy(priv->staging_rxon.bssid_addr, + bss_conf->bssid, ETH_ALEN); + memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); + iwlcore_config_ap(priv); + } + mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); @@ -2570,7 +2667,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) struct iwl_priv *priv = hw->priv; const struct iwl_channel_info *ch_info; struct ieee80211_conf *conf = &hw->conf; - struct iwl_ht_info *ht_conf = &priv->current_ht_config; + struct iwl_ht_config *ht_conf = &priv->current_ht_config; unsigned long flags = 0; int ret = 0; u16 ch; @@ -2620,21 +2717,18 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) if (conf_is_ht40_minus(conf)) { ht_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; - ht_conf->supported_chan_width = - IWL_CHANNEL_WIDTH_40MHZ; + ht_conf->is_40mhz = true; } else if (conf_is_ht40_plus(conf)) { ht_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - ht_conf->supported_chan_width = - IWL_CHANNEL_WIDTH_40MHZ; + ht_conf->is_40mhz = true; } else { ht_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; - ht_conf->supported_chan_width = - IWL_CHANNEL_WIDTH_20MHZ; + ht_conf->is_40mhz = false; } } else - ht_conf->supported_chan_width = IWL_CHANNEL_WIDTH_20MHZ; + ht_conf->is_40mhz = false; /* Default to no protection. Protection mode will later be set * from BSS config in iwl_ht_conf */ ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; @@ -2649,6 +2743,22 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) iwl_set_flags_for_band(priv, conf->channel->band); spin_unlock_irqrestore(&priv->lock, flags); + if (iwl_is_associated(priv) && + (le16_to_cpu(priv->active_rxon.channel) != ch) && + priv->cfg->ops->lib->set_channel_switch) { + iwl_set_rate(priv); + /* + * at this point, staging_rxon has the + * configuration for channel switch + */ + ret = priv->cfg->ops->lib->set_channel_switch(priv, + ch); + if (!ret) { + iwl_print_rx_config_cmd(priv); + goto out; + } + priv->switch_rxon.switch_in_progress = false; + } set_ch_out: /* The list of supported rates and rate mask can be different * for each band; since the band may have changed, reset @@ -2656,7 +2766,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) iwl_set_rate(priv); } - if (changed & IEEE80211_CONF_CHANGE_PS) { + if (changed & (IEEE80211_CONF_CHANGE_PS | + IEEE80211_CONF_CHANGE_IDLE)) { ret = iwl_power_update_mode(priv, false); if (ret) IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); @@ -2740,7 +2851,7 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw) IWL_DEBUG_MAC80211(priv, "enter\n"); spin_lock_irqsave(&priv->lock, flags); - memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); + memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config)); spin_unlock_irqrestore(&priv->lock, flags); iwl_reset_qos(priv); @@ -2792,6 +2903,55 @@ void iwl_mac_reset_tsf(struct ieee80211_hw *hw) } EXPORT_SYMBOL(iwl_mac_reset_tsf); +int iwl_alloc_txq_mem(struct iwl_priv *priv) +{ + if (!priv->txq) + priv->txq = kzalloc( + sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues, + GFP_KERNEL); + if (!priv->txq) { + IWL_ERR(priv, "Not enough memory for txq \n"); + return -ENOMEM; + } + return 0; +} +EXPORT_SYMBOL(iwl_alloc_txq_mem); + +void iwl_free_txq_mem(struct iwl_priv *priv) +{ + kfree(priv->txq); + priv->txq = NULL; +} +EXPORT_SYMBOL(iwl_free_txq_mem); + +int iwl_send_wimax_coex(struct iwl_priv *priv) +{ + struct iwl_wimax_coex_cmd uninitialized_var(coex_cmd); + + if (priv->cfg->support_wimax_coexist) { + /* UnMask wake up src at associated sleep */ + coex_cmd.flags |= COEX_FLAGS_ASSOC_WA_UNMASK_MSK; + + /* UnMask wake up src at unassociated sleep */ + coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK; + memcpy(coex_cmd.sta_prio, cu_priorities, + sizeof(struct iwl_wimax_coex_event_entry) * + COEX_NUM_OF_EVENTS); + + /* enabling the coexistence feature */ + coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK; + + /* enabling the priorities tables */ + coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK; + } else { + /* coexistence is disabled */ + memset(&coex_cmd, 0, sizeof(coex_cmd)); + } + return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD, + sizeof(coex_cmd), &coex_cmd); +} +EXPORT_SYMBOL(iwl_send_wimax_coex); + #ifdef CONFIG_IWLWIFI_DEBUGFS #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES) @@ -2929,15 +3089,11 @@ const char *get_ctrl_string(int cmd) } } -void iwl_clear_tx_stats(struct iwl_priv *priv) +void iwl_clear_traffic_stats(struct iwl_priv *priv) { memset(&priv->tx_stats, 0, sizeof(struct traffic_stats)); - -} - -void iwl_clear_rx_stats(struct iwl_priv *priv) -{ memset(&priv->rx_stats, 0, sizeof(struct traffic_stats)); + priv->led_tpt = 0; } /* @@ -3030,6 +3186,7 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) stats->data_cnt++; stats->data_bytes += len; } + iwl_leds_background(priv); } EXPORT_SYMBOL(iwl_update_stats); #endif |