X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fiwlwifi%2Fiwl-agn.c;h=5e0c6bf3fbb11ce06909796b17988d4b2bef276e;hb=5a0e3ad6af8660be21ca98a971cd00f331318c05;hp=4cb1a1b73483aafe9f92266b9ba6d8a8dd81ee98;hpb=c2acea8e9b86ba5a5469ff477445676a223af4e2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 4cb1a1b..5e0c6bf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -31,8 +31,10 @@ #include #include #include +#include #include #include +#include #include #include #include @@ -72,13 +74,7 @@ #define VD #endif -#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT -#define VS "s" -#else -#define VS -#endif - -#define DRV_VERSION IWLWIFI_VERSION VD VS +#define DRV_VERSION IWLWIFI_VERSION VD MODULE_DESCRIPTION(DRV_DESCRIPTION); @@ -115,9 +111,6 @@ int iwl_commit_rxon(struct iwl_priv *priv) /* always get timestamp with Rx frame */ priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK; - /* allow CTS-to-self if possible. this is relevant only for - * 5000, but will not damage 4965 */ - priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; ret = iwl_check_rxon_cmd(priv); if (ret) { @@ -125,6 +118,17 @@ int iwl_commit_rxon(struct iwl_priv *priv) return -EINVAL; } + /* + * receive commit_rxon request + * abort any previous channel switch if still in process + */ + if (priv->switch_rxon.switch_in_progress && + (priv->switch_rxon.channel != priv->staging_rxon.channel)) { + IWL_DEBUG_11H(priv, "abort channel switch on %d\n", + le16_to_cpu(priv->switch_rxon.channel)); + priv->switch_rxon.switch_in_progress = false; + } + /* If we don't need to send a full RXON, we can use * iwl_rxon_assoc_cmd which is used to reconfigure filter * and other flags for the current radio configuration. */ @@ -136,6 +140,7 @@ int iwl_commit_rxon(struct iwl_priv *priv) } memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); + iwl_print_rx_config_cmd(priv); return 0; } @@ -193,11 +198,8 @@ int iwl_commit_rxon(struct iwl_priv *priv) priv->start_calib = 0; /* Add the broadcast address so we can send broadcast frames */ - if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) == - IWL_INVALID_STATION) { - IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n"); - return -EIO; - } + priv->cfg->ops->lib->add_bcast_station(priv); + /* If we have set the ASSOC_MSK and we are in BSS mode then * add the IWL_AP_ID to the station rate table */ @@ -217,6 +219,13 @@ int iwl_commit_rxon(struct iwl_priv *priv) "Could not send WEP static key.\n"); } + /* + * allow CTS-to-self if possible for new association. + * this is relevant only for 5000 series and up, + * but will not damage 4965 + */ + priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN; + /* Apply the new configuration * RXON assoc doesn't clear the station table in uCode, */ @@ -228,6 +237,7 @@ int iwl_commit_rxon(struct iwl_priv *priv) } memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon)); } + iwl_print_rx_config_cmd(priv); iwl_init_sensitivity(priv); @@ -297,7 +307,7 @@ static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame) list_add(&frame->list, &priv->free_frames); } -static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv, +static u32 iwl_fill_beacon_frame(struct iwl_priv *priv, struct ieee80211_hdr *hdr, int left) { @@ -314,34 +324,74 @@ static unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv, return priv->ibss_beacon->len; } +/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ +static void iwl_set_beacon_tim(struct iwl_priv *priv, + struct iwl_tx_beacon_cmd *tx_beacon_cmd, + u8 *beacon, u32 frame_size) +{ + u16 tim_idx; + struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; + + /* + * The index is relative to frame start but we start looking at the + * variable-length part of the beacon. + */ + tim_idx = mgmt->u.beacon.variable - beacon; + + /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ + while ((tim_idx < (frame_size - 2)) && + (beacon[tim_idx] != WLAN_EID_TIM)) + tim_idx += beacon[tim_idx+1] + 2; + + /* If TIM field was found, set variables */ + if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { + tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); + tx_beacon_cmd->tim_size = beacon[tim_idx+1]; + } else + IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); +} + static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv, - struct iwl_frame *frame, u8 rate) + struct iwl_frame *frame) { struct iwl_tx_beacon_cmd *tx_beacon_cmd; - unsigned int frame_size; + u32 frame_size; + u32 rate_flags; + u32 rate; + /* + * We have to set up the TX command, the TX Beacon command, and the + * beacon contents. + */ + /* Initialize memory */ tx_beacon_cmd = &frame->u.beacon; memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd)); - tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; - tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - + /* Set up TX beacon contents */ frame_size = iwl_fill_beacon_frame(priv, tx_beacon_cmd->frame, sizeof(frame->u) - sizeof(*tx_beacon_cmd)); + if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE)) + return 0; - BUG_ON(frame_size > MAX_MPDU_SIZE); + /* Set up TX command fields */ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); + tx_beacon_cmd->tx.sta_id = priv->hw_params.bcast_sta_id; + tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; + tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | + TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; - if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP)) - tx_beacon_cmd->tx.rate_n_flags = - iwl_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK); - else - tx_beacon_cmd->tx.rate_n_flags = - iwl_hw_set_rate_n_flags(rate, 0); + /* Set up TX beacon command fields */ + iwl_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame, + frame_size); - tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | - TX_CMD_FLG_TSF_MSK | - TX_CMD_FLG_STA_RATE_MSK; + /* Set up packet rate and flags */ + rate = iwl_rate_get_lowest_plcp(priv); + priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant); + rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); + if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE)) + rate_flags |= RATE_MCS_CCK_MSK; + tx_beacon_cmd->tx.rate_n_flags = iwl_hw_set_rate_n_flags(rate, + rate_flags); return sizeof(*tx_beacon_cmd) + frame_size; } @@ -350,19 +400,20 @@ static int iwl_send_beacon_cmd(struct iwl_priv *priv) struct iwl_frame *frame; unsigned int frame_size; int rc; - u8 rate; frame = iwl_get_free_frame(priv); - if (!frame) { IWL_ERR(priv, "Could not obtain free frame buffer for beacon " "command.\n"); return -ENOMEM; } - rate = iwl_rate_get_lowest_plcp(priv); - - frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate); + frame_size = iwl_hw_get_beacon_cmd(priv, frame); + if (!frame_size) { + IWL_ERR(priv, "Error configuring the beacon command\n"); + iwl_free_frame(priv, frame); + return -EINVAL; + } rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, &frame->u.cmd[0]); @@ -520,7 +571,7 @@ int iwl_hw_tx_queue_init(struct iwl_priv *priv, static void iwl_rx_reply_alive(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_alive_resp *palive; struct delayed_work *pwork; @@ -533,16 +584,12 @@ static void iwl_rx_reply_alive(struct iwl_priv *priv, if (palive->ver_subtype == INITIALIZE_SUBTYPE) { IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); - set_bit(STATUS_INIT_UCODE_ALIVE, &priv->status); - wake_up_interruptible(&priv->wait_command_queue); memcpy(&priv->card_alive_init, &pkt->u.alive_frame, sizeof(struct iwl_init_alive_resp)); pwork = &priv->init_alive_start; } else { IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); - set_bit(STATUS_RT_UCODE_ALIVE, &priv->status); - wake_up_interruptible(&priv->wait_command_queue); memcpy(&priv->card_alive, &pkt->u.alive_frame, sizeof(struct iwl_alive_resp)); pwork = &priv->alive_start; @@ -603,14 +650,139 @@ static void iwl_bg_statistics_periodic(unsigned long data) if (!iwl_is_ready_rf(priv)) return; - iwl_send_statistics_request(priv, CMD_ASYNC); + iwl_send_statistics_request(priv, CMD_ASYNC, false); +} + + +static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, + u32 start_idx, u32 num_events, + u32 mode) +{ + u32 i; + u32 ptr; /* SRAM byte address of log data */ + u32 ev, time, data; /* event log data */ + unsigned long reg_flags; + + if (mode == 0) + ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); + else + ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); + + /* Make sure device is powered up for SRAM reads */ + spin_lock_irqsave(&priv->reg_lock, reg_flags); + if (iwl_grab_nic_access(priv)) { + spin_unlock_irqrestore(&priv->reg_lock, reg_flags); + return; + } + + /* Set starting address; reads will auto-increment */ + _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); + rmb(); + + /* + * "time" is actually "data" for mode 0 (no timestamp). + * place event id # at far right for easier visual parsing. + */ + for (i = 0; i < num_events; i++) { + ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + if (mode == 0) { + trace_iwlwifi_dev_ucode_cont_event(priv, + 0, time, ev); + } else { + data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + trace_iwlwifi_dev_ucode_cont_event(priv, + time, data, ev); + } + } + /* Allow device to power down */ + iwl_release_nic_access(priv); + spin_unlock_irqrestore(&priv->reg_lock, reg_flags); +} + +static void iwl_continuous_event_trace(struct iwl_priv *priv) +{ + u32 capacity; /* event log capacity in # entries */ + u32 base; /* SRAM byte address of event log header */ + u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ + u32 num_wraps; /* # times uCode wrapped to top of log */ + u32 next_entry; /* index of next entry to be written by uCode */ + + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.log_event_table_ptr); + if (priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + capacity = iwl_read_targ_mem(priv, base); + num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); + mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); + next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); + } else + return; + + if (num_wraps == priv->event_log.num_wraps) { + iwl_print_cont_event_trace(priv, + base, priv->event_log.next_entry, + next_entry - priv->event_log.next_entry, + mode); + priv->event_log.non_wraps_count++; + } else { + if ((num_wraps - priv->event_log.num_wraps) > 1) + priv->event_log.wraps_more_count++; + else + priv->event_log.wraps_once_count++; + trace_iwlwifi_dev_ucode_wrap_event(priv, + num_wraps - priv->event_log.num_wraps, + next_entry, priv->event_log.next_entry); + if (next_entry < priv->event_log.next_entry) { + iwl_print_cont_event_trace(priv, base, + priv->event_log.next_entry, + capacity - priv->event_log.next_entry, + mode); + + iwl_print_cont_event_trace(priv, base, 0, + next_entry, mode); + } else { + iwl_print_cont_event_trace(priv, base, + next_entry, capacity - next_entry, + mode); + + iwl_print_cont_event_trace(priv, base, 0, + next_entry, mode); + } + } + priv->event_log.num_wraps = num_wraps; + priv->event_log.next_entry = next_entry; +} + +/** + * iwl_bg_ucode_trace - Timer callback to log ucode event + * + * The timer is continually set to execute every + * UCODE_TRACE_PERIOD milliseconds after the last timer expired + * this function is to perform continuous uCode event logging operation + * if enabled + */ +static void iwl_bg_ucode_trace(unsigned long data) +{ + struct iwl_priv *priv = (struct iwl_priv *)data; + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + if (priv->event_log.ucode_trace) { + iwl_continuous_event_trace(priv); + /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ + mod_timer(&priv->ucode_trace, + jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); + } } static void iwl_rx_beacon_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 iwl4965_beacon_notif *beacon = (struct iwl4965_beacon_notif *)pkt->u.raw; u8 rate = iwl_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags); @@ -634,16 +806,18 @@ static void iwl_rx_beacon_notif(struct iwl_priv *priv, static void iwl_rx_card_state_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 flags = le32_to_cpu(pkt->u.card_state_notif.flags); unsigned long status = priv->status; - IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n", + IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n", (flags & HW_CARD_DISABLED) ? "Kill" : "On", - (flags & SW_CARD_DISABLED) ? "Kill" : "On"); + (flags & SW_CARD_DISABLED) ? "Kill" : "On", + (flags & CT_CARD_DISABLED) ? + "Reached" : "Not reached"); if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | - RF_CARD_DISABLED)) { + CT_CARD_DISABLED)) { iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); @@ -657,10 +831,10 @@ static void iwl_rx_card_state_notif(struct iwl_priv *priv, iwl_write_direct32(priv, HBUS_TARG_MBX_C, HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED); } - if (flags & RF_CARD_DISABLED) + if (flags & CT_CARD_DISABLED) iwl_tt_enter_ct_kill(priv); } - if (!(flags & RF_CARD_DISABLED)) + if (!(flags & CT_CARD_DISABLED)) iwl_tt_exit_ct_kill(priv); if (flags & HW_CARD_DISABLED) @@ -710,6 +884,8 @@ static void iwl_setup_rx_handlers(struct iwl_priv *priv) priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive; priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; + priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = + iwl_rx_spectrum_measure_notif; priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = iwl_rx_pm_debug_statistics_notif; @@ -720,10 +896,9 @@ static void iwl_setup_rx_handlers(struct iwl_priv *priv) * statistics request from the host as well as for the periodic * statistics notifications (after received beacons) from the uCode. */ - priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_rx_statistics; + priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_reply_statistics; priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_rx_statistics; - iwl_setup_spectrum_handlers(priv); iwl_setup_rx_scan_handlers(priv); /* status change handler */ @@ -769,7 +944,7 @@ void iwl_rx_handle(struct iwl_priv *priv) IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); /* calculate total frames need to be restock after handling RX */ - total_empty = r - priv->rxq.write_actual; + total_empty = r - rxq->write_actual; if (total_empty < 0) total_empty += RX_QUEUE_SIZE; @@ -786,10 +961,13 @@ void iwl_rx_handle(struct iwl_priv *priv) rxq->queue[i] = NULL; - pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, - priv->hw_params.rx_buf_size + 256, - PCI_DMA_FROMDEVICE); - pkt = (struct iwl_rx_packet *)rxb->skb->data; + pci_unmap_page(priv->pci_dev, rxb->page_dma, + PAGE_SIZE << priv->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + pkt = rxb_addr(rxb); + + trace_iwlwifi_dev_rx(priv, pkt, + le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); /* Reclaim a command buffer only if this packet is a response * to a (driver-originated) command. @@ -811,8 +989,8 @@ void iwl_rx_handle(struct iwl_priv *priv) if (priv->rx_handlers[pkt->hdr.cmd]) { IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); - priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; + priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); } else { /* No handling needed */ IWL_DEBUG_RX(priv, @@ -821,35 +999,45 @@ void iwl_rx_handle(struct iwl_priv *priv) pkt->hdr.cmd); } + /* + * XXX: After here, we should always check rxb->page + * against NULL before touching it or its virtual + * memory (pkt). Because some rx_handler might have + * already taken or freed the pages. + */ + if (reclaim) { - /* Invoke any callbacks, transfer the skb to caller, and - * fire off the (possibly) blocking iwl_send_cmd() + /* Invoke any callbacks, transfer the buffer to caller, + * and fire off the (possibly) blocking iwl_send_cmd() * as we reclaim the driver command queue */ - if (rxb && rxb->skb) + if (rxb->page) iwl_tx_cmd_complete(priv, rxb); else IWL_WARN(priv, "Claim null rxb?\n"); } - /* For now we just don't re-use anything. We can tweak this - * later to try and re-use notification packets and SKBs that - * fail to Rx correctly */ - if (rxb->skb != NULL) { - priv->alloc_rxb_skb--; - dev_kfree_skb_any(rxb->skb); - rxb->skb = NULL; - } - + /* Reuse the page if possible. For notification packets and + * SKBs that fail to Rx correctly, add them back into the + * rx_free list for reuse later. */ spin_lock_irqsave(&rxq->lock, flags); - list_add_tail(&rxb->list, &priv->rxq.rx_used); + if (rxb->page != NULL) { + rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, + 0, PAGE_SIZE << priv->hw_params.rx_page_order, + PCI_DMA_FROMDEVICE); + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } else + list_add_tail(&rxb->list, &rxq->rx_used); + spin_unlock_irqrestore(&rxq->lock, flags); + i = (i + 1) & RX_QUEUE_MASK; /* If there are a lot of unused frames, * restock the Rx queue so ucode wont assert. */ if (fill_rx) { count++; if (count >= 8) { - priv->rxq.read = i; + rxq->read = i; iwl_rx_replenish_now(priv); count = 0; } @@ -857,7 +1045,7 @@ void iwl_rx_handle(struct iwl_priv *priv) } /* Backtrack one entry */ - priv->rxq.read = i; + rxq->read = i; if (fill_rx) iwl_rx_replenish_now(priv); else @@ -877,6 +1065,7 @@ 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 @@ -896,7 +1085,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & IWL_DL_ISR) { + 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", @@ -904,6 +1093,8 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) } #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 @@ -925,13 +1116,11 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) handled |= CSR_INT_BIT_HW_ERR; - spin_unlock_irqrestore(&priv->lock, flags); - return; } #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & (IWL_DL_ISR)) { + 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 " @@ -994,19 +1183,17 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) handled |= CSR_INT_BIT_SW_ERR; } - /* uCode wakes up after power-down sleep */ + /* + * 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); - iwl_txq_update_write_ptr(priv, &priv->txq[0]); - iwl_txq_update_write_ptr(priv, &priv->txq[1]); - iwl_txq_update_write_ptr(priv, &priv->txq[2]); - iwl_txq_update_write_ptr(priv, &priv->txq[3]); - iwl_txq_update_write_ptr(priv, &priv->txq[4]); - iwl_txq_update_write_ptr(priv, &priv->txq[5]); - + 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; } @@ -1019,11 +1206,12 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) 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, "Tx interrupt\n"); + IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); priv->isr_stats.tx++; handled |= CSR_INT_BIT_FH_TX; - /* FH finished to write, send event */ + /* Wake up uCode load routine, now that load is complete */ priv->ucode_write_complete = 1; wake_up_interruptible(&priv->wait_command_queue); } @@ -1045,7 +1233,7 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) iwl_enable_interrupts(priv); #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & (IWL_DL_ISR)) { + 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); @@ -1053,7 +1241,6 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv) "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); } #endif - spin_unlock_irqrestore(&priv->lock, flags); } /* tasklet for iwlagn interrupt */ @@ -1062,6 +1249,7 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) u32 inta = 0; u32 handled = 0; unsigned long flags; + u32 i; #ifdef CONFIG_IWLWIFI_DEBUG u32 inta_mask; #endif @@ -1076,13 +1264,16 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) inta = priv->inta; #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & IWL_DL_ISR) { + 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\n ", inta, inta_mask); } #endif + + spin_unlock_irqrestore(&priv->lock, flags); + /* saved interrupt in inta variable now we can reset priv->inta */ priv->inta = 0; @@ -1098,13 +1289,11 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) handled |= CSR_INT_BIT_HW_ERR; - spin_unlock_irqrestore(&priv->lock, flags); - return; } #ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_debug_level & (IWL_DL_ISR)) { + 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 " @@ -1171,12 +1360,8 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) if (inta & CSR_INT_BIT_WAKEUP) { IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); iwl_rx_queue_update_write_ptr(priv, &priv->rxq); - iwl_txq_update_write_ptr(priv, &priv->txq[0]); - iwl_txq_update_write_ptr(priv, &priv->txq[1]); - iwl_txq_update_write_ptr(priv, &priv->txq[2]); - iwl_txq_update_write_ptr(priv, &priv->txq[3]); - iwl_txq_update_write_ptr(priv, &priv->txq[4]); - iwl_txq_update_write_ptr(priv, &priv->txq[5]); + for (i = 0; i < priv->hw_params.max_txq_num; i++) + iwl_txq_update_write_ptr(priv, &priv->txq[i]); priv->isr_stats.wakeup++; @@ -1205,26 +1390,36 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) * 3- update RX shared data to indicate last write index. * 4- send interrupt. * This could lead to RX race, driver could receive RX interrupt - * but the shared data changes does not reflect this. - * this could lead to RX race, RX periodic will solve this race + * but the shared data changes does not reflect this; + * periodic interrupt will detect any dangling Rx activity. */ - iwl_write32(priv, CSR_INT_PERIODIC_REG, + + /* Disable periodic interrupt; we use it as just a one-shot. */ + iwl_write8(priv, CSR_INT_PERIODIC_REG, CSR_INT_PERIODIC_DIS); iwl_rx_handle(priv); - /* Only set RX periodic if real RX is received. */ + + /* + * Enable periodic interrupt in 8 msec only if we received + * real RX interrupt (instead of just periodic int), to catch + * any dangling Rx interrupt. If it was just the periodic + * interrupt, there was no dangling Rx activity, and no need + * to extend the periodic interrupt; one-shot is enough. + */ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) - iwl_write32(priv, CSR_INT_PERIODIC_REG, + iwl_write8(priv, CSR_INT_PERIODIC_REG, CSR_INT_PERIODIC_ENA); priv->isr_stats.rx++; } + /* 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_DEBUG_ISR(priv, "Tx interrupt\n"); + IWL_DEBUG_ISR(priv, "uCode load interrupt\n"); priv->isr_stats.tx++; handled |= CSR_INT_BIT_FH_TX; - /* FH finished to write, send event */ + /* Wake up uCode load routine, now that load is complete */ priv->ucode_write_complete = 1; wake_up_interruptible(&priv->wait_command_queue); } @@ -1239,14 +1434,10 @@ static void iwl_irq_tasklet(struct iwl_priv *priv) inta & ~priv->inta_mask); } - /* Re-enable all interrupts */ /* only Re-enable if diabled by irq */ if (test_bit(STATUS_INT_ENABLED, &priv->status)) iwl_enable_interrupts(priv); - - spin_unlock_irqrestore(&priv->lock, flags); - } @@ -1273,58 +1464,66 @@ static void iwl_nic_start(struct iwl_priv *priv) } +static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); +static int iwl_mac_setup_register(struct iwl_priv *priv); + +static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) +{ + const char *name_pre = priv->cfg->fw_name_pre; + + if (first) + priv->fw_index = priv->cfg->ucode_api_max; + else + priv->fw_index--; + + if (priv->fw_index < priv->cfg->ucode_api_min) { + IWL_ERR(priv, "no suitable firmware found!\n"); + return -ENOENT; + } + + sprintf(priv->firmware_name, "%s%d%s", + name_pre, priv->fw_index, ".ucode"); + + IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n", + priv->firmware_name); + + return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, + &priv->pci_dev->dev, GFP_KERNEL, priv, + iwl_ucode_callback); +} + /** - * iwl_read_ucode - Read uCode images from disk file. + * iwl_ucode_callback - callback when firmware was loaded * - * Copy into buffers for card to fetch via bus-mastering + * If loaded successfully, copies the firmware into buffers + * for the card to fetch (via DMA). */ -static int iwl_read_ucode(struct iwl_priv *priv) +static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) { + struct iwl_priv *priv = context; struct iwl_ucode_header *ucode; - int ret = -EINVAL, index; - const struct firmware *ucode_raw; - const char *name_pre = priv->cfg->fw_name_pre; const unsigned int api_max = priv->cfg->ucode_api_max; const unsigned int api_min = priv->cfg->ucode_api_min; - char buf[25]; u8 *src; size_t len; u32 api_ver, build; u32 inst_size, data_size, init_size, init_data_size, boot_size; + int err; + u16 eeprom_ver; - /* Ask kernel firmware_class module to get the boot firmware off disk. - * request_firmware() is synchronous, file is in memory on return. */ - for (index = api_max; index >= api_min; index--) { - sprintf(buf, "%s%d%s", name_pre, index, ".ucode"); - ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); - if (ret < 0) { - IWL_ERR(priv, "%s firmware file req failed: %d\n", - buf, ret); - if (ret == -ENOENT) - continue; - else - goto error; - } else { - if (index < api_max) - IWL_ERR(priv, "Loaded firmware %s, " - "which is deprecated. " - "Please use API v%u instead.\n", - buf, api_max); - - IWL_DEBUG_INFO(priv, "Got firmware '%s' file (%zd bytes) from disk\n", - buf, ucode_raw->size); - break; - } + if (!ucode_raw) { + IWL_ERR(priv, "request for firmware file '%s' failed.\n", + priv->firmware_name); + goto try_again; } - if (ret < 0) - goto error; + IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", + priv->firmware_name, ucode_raw->size); /* Make sure that we got at least the v1 header! */ if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) { IWL_ERR(priv, "File size way too small!\n"); - ret = -EINVAL; - goto err_release; + goto try_again; } /* Data from ucode file: header followed by uCode images */ @@ -1349,10 +1548,9 @@ static int iwl_read_ucode(struct iwl_priv *priv) IWL_ERR(priv, "Driver unable to support your firmware API. " "Driver supports v%u, firmware is v%u.\n", api_max, api_ver); - priv->ucode_ver = 0; - ret = -EINVAL; - goto err_release; + goto try_again; } + if (api_ver != api_max) IWL_ERR(priv, "Firmware has old API version. Expected v%u, " "got v%u. New firmware can be obtained " @@ -1365,9 +1563,22 @@ static int iwl_read_ucode(struct iwl_priv *priv) IWL_UCODE_API(priv->ucode_ver), IWL_UCODE_SERIAL(priv->ucode_ver)); + snprintf(priv->hw->wiphy->fw_version, + sizeof(priv->hw->wiphy->fw_version), + "%u.%u.%u.%u", + IWL_UCODE_MAJOR(priv->ucode_ver), + IWL_UCODE_MINOR(priv->ucode_ver), + IWL_UCODE_API(priv->ucode_ver), + IWL_UCODE_SERIAL(priv->ucode_ver)); + if (build) IWL_DEBUG_INFO(priv, "Build %u\n", build); + eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); + IWL_DEBUG_INFO(priv, "NVM Type: %s, version: 0x%x\n", + (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) + ? "OTP" : "EEPROM", eeprom_ver); + IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", priv->ucode_ver); IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", @@ -1381,6 +1592,12 @@ static int iwl_read_ucode(struct iwl_priv *priv) IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", boot_size); + /* + * For any of the failures below (before allocating pci memory) + * we will try to load a version with a smaller API -- maybe the + * user just got a corrupted version of the latest API. + */ + /* Verify size of file vs. image size info in file's header */ if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) + @@ -1390,41 +1607,35 @@ static int iwl_read_ucode(struct iwl_priv *priv) IWL_DEBUG_INFO(priv, "uCode file size %d does not match expected size\n", (int)ucode_raw->size); - ret = -EINVAL; - goto err_release; + goto try_again; } /* Verify that uCode images will fit in card's SRAM */ if (inst_size > priv->hw_params.max_inst_size) { IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", inst_size); - ret = -EINVAL; - goto err_release; + goto try_again; } if (data_size > priv->hw_params.max_data_size) { IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", data_size); - ret = -EINVAL; - goto err_release; + goto try_again; } if (init_size > priv->hw_params.max_inst_size) { IWL_INFO(priv, "uCode init instr len %d too large to fit in\n", init_size); - ret = -EINVAL; - goto err_release; + goto try_again; } if (init_data_size > priv->hw_params.max_data_size) { IWL_INFO(priv, "uCode init data len %d too large to fit in\n", init_data_size); - ret = -EINVAL; - goto err_release; + goto try_again; } if (boot_size > priv->hw_params.max_bsm_size) { IWL_INFO(priv, "uCode boot instr len %d too large to fit in\n", boot_size); - ret = -EINVAL; - goto err_release; + goto try_again; } /* Allocate ucode buffers for card's bus-master loading ... */ @@ -1508,20 +1719,344 @@ static int iwl_read_ucode(struct iwl_priv *priv) IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len); memcpy(priv->ucode_boot.v_addr, src, len); + /************************************************** + * This is still part of probe() in a sense... + * + * 9. Setup and register with mac80211 and debugfs + **************************************************/ + err = iwl_mac_setup_register(priv); + if (err) + goto out_unbind; + + err = iwl_dbgfs_register(priv, DRV_NAME); + if (err) + IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); + /* We have our copies now, allow OS release its copies */ release_firmware(ucode_raw); - return 0; + return; + + try_again: + /* try next, if any */ + if (iwl_request_firmware(priv, false)) + goto out_unbind; + release_firmware(ucode_raw); + return; err_pci_alloc: IWL_ERR(priv, "failed to allocate pci memory\n"); - ret = -ENOMEM; iwl_dealloc_ucode_pci(priv); - - err_release: + out_unbind: + device_release_driver(&priv->pci_dev->dev); release_firmware(ucode_raw); +} + +static const char *desc_lookup_text[] = { + "OK", + "FAIL", + "BAD_PARAM", + "BAD_CHECKSUM", + "NMI_INTERRUPT_WDG", + "SYSASSERT", + "FATAL_ERROR", + "BAD_COMMAND", + "HW_ERROR_TUNE_LOCK", + "HW_ERROR_TEMPERATURE", + "ILLEGAL_CHAN_FREQ", + "VCC_NOT_STABLE", + "FH_ERROR", + "NMI_INTERRUPT_HOST", + "NMI_INTERRUPT_ACTION_PT", + "NMI_INTERRUPT_UNKNOWN", + "UCODE_VERSION_MISMATCH", + "HW_ERROR_ABS_LOCK", + "HW_ERROR_CAL_LOCK_FAIL", + "NMI_INTERRUPT_INST_ACTION_PT", + "NMI_INTERRUPT_DATA_ACTION_PT", + "NMI_TRM_HW_ER", + "NMI_INTERRUPT_TRM", + "NMI_INTERRUPT_BREAK_POINT" + "DEBUG_0", + "DEBUG_1", + "DEBUG_2", + "DEBUG_3", + "ADVANCED SYSASSERT" +}; + +static const char *desc_lookup(int i) +{ + int max = ARRAY_SIZE(desc_lookup_text) - 1; + + if (i < 0 || i > max) + i = max; + + return desc_lookup_text[i]; +} + +#define ERROR_START_OFFSET (1 * sizeof(u32)) +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) + +void iwl_dump_nic_error_log(struct iwl_priv *priv) +{ + u32 data2, line; + u32 desc, time, count, base, data1; + u32 blink1, blink2, ilink1, ilink2; + + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.error_event_table_ptr); + + if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + IWL_ERR(priv, + "Not valid error log pointer 0x%08X for %s uCode\n", + base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT"); + return; + } + + count = iwl_read_targ_mem(priv, base); + + if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { + IWL_ERR(priv, "Start IWL Error Log Dump:\n"); + IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", + priv->status, count); + } + + desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); + blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); + blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); + ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); + ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); + data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); + data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); + line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); + time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); + + trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, data2, line, + blink1, blink2, ilink1, ilink2); + + IWL_ERR(priv, "Desc Time " + "data1 data2 line\n"); + IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", + desc_lookup(desc), desc, time, data1, data2, line); + IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); + IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, + ilink1, ilink2); - error: - return ret; +} + +#define EVENT_START_OFFSET (4 * sizeof(u32)) + +/** + * iwl_print_event_log - Dump error event log to syslog + * + */ +static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, + u32 num_events, u32 mode, + int pos, char **buf, size_t bufsz) +{ + u32 i; + u32 base; /* SRAM byte address of event log header */ + u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ + u32 ptr; /* SRAM byte address of log data */ + u32 ev, time, data; /* event log data */ + unsigned long reg_flags; + + if (num_events == 0) + return pos; + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.log_event_table_ptr); + + if (mode == 0) + event_size = 2 * sizeof(u32); + else + event_size = 3 * sizeof(u32); + + ptr = base + EVENT_START_OFFSET + (start_idx * event_size); + + /* Make sure device is powered up for SRAM reads */ + spin_lock_irqsave(&priv->reg_lock, reg_flags); + iwl_grab_nic_access(priv); + + /* Set starting address; reads will auto-increment */ + _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); + rmb(); + + /* "time" is actually "data" for mode 0 (no timestamp). + * place event id # at far right for easier visual parsing. */ + for (i = 0; i < num_events; i++) { + ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + if (mode == 0) { + /* data, ev */ + if (bufsz) { + pos += scnprintf(*buf + pos, bufsz - pos, + "EVT_LOG:0x%08x:%04u\n", + time, ev); + } else { + trace_iwlwifi_dev_ucode_event(priv, 0, + time, ev); + IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", + time, ev); + } + } else { + data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); + if (bufsz) { + pos += scnprintf(*buf + pos, bufsz - pos, + "EVT_LOGT:%010u:0x%08x:%04u\n", + time, data, ev); + } else { + IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", + time, data, ev); + trace_iwlwifi_dev_ucode_event(priv, time, + data, ev); + } + } + } + + /* Allow device to power down */ + iwl_release_nic_access(priv); + spin_unlock_irqrestore(&priv->reg_lock, reg_flags); + return pos; +} + +/** + * iwl_print_last_event_logs - Dump the newest # of event log to syslog + */ +static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity, + u32 num_wraps, u32 next_entry, + u32 size, u32 mode, + int pos, char **buf, size_t bufsz) +{ + /* + * display the newest DEFAULT_LOG_ENTRIES entries + * i.e the entries just before the next ont that uCode would fill. + */ + if (num_wraps) { + if (next_entry < size) { + pos = iwl_print_event_log(priv, + capacity - (size - next_entry), + size - next_entry, mode, + pos, buf, bufsz); + pos = iwl_print_event_log(priv, 0, + next_entry, mode, + pos, buf, bufsz); + } else + pos = iwl_print_event_log(priv, next_entry - size, + size, mode, pos, buf, bufsz); + } else { + if (next_entry < size) { + pos = iwl_print_event_log(priv, 0, next_entry, + mode, pos, buf, bufsz); + } else { + pos = iwl_print_event_log(priv, next_entry - size, + size, mode, pos, buf, bufsz); + } + } + return pos; +} + +/* For sanity check only. Actual size is determined by uCode, typ. 512 */ +#define MAX_EVENT_LOG_SIZE (512) + +#define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20) + +int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, + char **buf, bool display) +{ + u32 base; /* SRAM byte address of event log header */ + u32 capacity; /* event log capacity in # entries */ + u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ + u32 num_wraps; /* # times uCode wrapped to top of log */ + u32 next_entry; /* index of next entry to be written by uCode */ + u32 size; /* # entries that we'll print */ + int pos = 0; + size_t bufsz = 0; + + if (priv->ucode_type == UCODE_INIT) + base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); + else + base = le32_to_cpu(priv->card_alive.log_event_table_ptr); + + if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { + IWL_ERR(priv, + "Invalid event log pointer 0x%08X for %s uCode\n", + base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT"); + return -EINVAL; + } + + /* event log header */ + capacity = iwl_read_targ_mem(priv, base); + mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); + num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); + next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); + + if (capacity > MAX_EVENT_LOG_SIZE) { + IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", + capacity, MAX_EVENT_LOG_SIZE); + capacity = MAX_EVENT_LOG_SIZE; + } + + if (next_entry > MAX_EVENT_LOG_SIZE) { + IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", + next_entry, MAX_EVENT_LOG_SIZE); + next_entry = MAX_EVENT_LOG_SIZE; + } + + size = num_wraps ? capacity : next_entry; + + /* bail out if nothing in log */ + if (size == 0) { + IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); + return pos; + } + +#ifdef CONFIG_IWLWIFI_DEBUG + if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) + size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) + ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; +#else + size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) + ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; +#endif + IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", + size); + +#ifdef CONFIG_IWLWIFI_DEBUG + if (display) { + if (full_log) + bufsz = capacity * 48; + else + bufsz = size * 48; + *buf = kmalloc(bufsz, GFP_KERNEL); + if (!*buf) + return -ENOMEM; + } + if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { + /* + * if uCode has wrapped back to top of log, + * start at the oldest entry, + * i.e the next one that uCode would fill. + */ + if (num_wraps) + pos = iwl_print_event_log(priv, next_entry, + capacity - next_entry, mode, + pos, buf, bufsz); + /* (then/else) start at top of log */ + pos = iwl_print_event_log(priv, 0, + next_entry, mode, pos, buf, bufsz); + } else + pos = iwl_print_last_event_logs(priv, capacity, num_wraps, + next_entry, size, mode, + pos, buf, bufsz); +#else + pos = iwl_print_last_event_logs(priv, capacity, num_wraps, + next_entry, size, mode, + pos, buf, bufsz); +#endif + return pos; } /** @@ -1571,6 +2106,10 @@ static void iwl_alive_start(struct iwl_priv *priv) priv->active_rate = priv->rates_mask; priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; + /* Configure Tx antenna selection based on H/W config */ + if (priv->cfg->ops->hcmd->set_tx_ant) + priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant); + if (iwl_is_associated(priv)) { struct iwl_rxon_cmd *active_rxon = (struct iwl_rxon_cmd *)&priv->active_rxon; @@ -1598,13 +2137,13 @@ static void iwl_alive_start(struct iwl_priv *priv) /* At this point, the NIC is initialized and operational */ iwl_rf_kill_ct_config(priv); - iwl_leds_register(priv); + iwl_leds_init(priv); IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); set_bit(STATUS_READY, &priv->status); wake_up_interruptible(&priv->wait_command_queue); - iwl_power_update_mode(priv, 1); + iwl_power_update_mode(priv, true); /* reassociate for ADHOC mode */ if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { @@ -1636,8 +2175,6 @@ static void __iwl_down(struct iwl_priv *priv) if (!exit_pending) set_bit(STATUS_EXIT_PENDING, &priv->status); - iwl_leds_unregister(priv); - iwl_clear_stations_table(priv); /* Unblock any waiting calls */ @@ -1685,24 +2222,20 @@ static void __iwl_down(struct iwl_priv *priv) /* device going down, Stop using ICT table */ iwl_disable_ict(priv); - spin_lock_irqsave(&priv->lock, flags); - iwl_clear_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - spin_unlock_irqrestore(&priv->lock, flags); iwl_txq_ctx_stop(priv); iwl_rxq_stop(priv); - iwl_write_prph(priv, APMG_CLK_DIS_REG, - APMG_CLK_VAL_DMA_CLK_RQT); - + /* Power-down device's busmaster DMA clocks */ + iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); udelay(5); - /* FIXME: apm_ops.suspend(priv) */ - if (exit_pending) - priv->cfg->ops->lib->apm_ops.stop(priv); - else - priv->cfg->ops->lib->apm_ops.reset(priv); + /* Make sure (redundant) we've released our request to stay awake */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + + /* Stop the device, and put it in low power state */ + priv->cfg->ops->lib->apm_ops.stop(priv); + exit: memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); @@ -1778,7 +2311,6 @@ static int __iwl_up(struct iwl_priv *priv) { int i; int ret; - unsigned long status; if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); @@ -1856,51 +2388,6 @@ static int __iwl_up(struct iwl_priv *priv) /* start card; "initialize" will load runtime ucode */ iwl_nic_start(priv); - /* Just finish download Init or Runtime uCode image to device - * now we wait here for uCode send REPLY_ALIVE notification - * to indicate uCode is ready. - * 1) For Init uCode image, all iwlagn devices should wait here - * on STATUS_INIT_UCODE_ALIVE status bit; if timeout before - * receive the REPLY_ALIVE notification, go back and try to - * download the Init uCode image again. - * 2) For Runtime uCode image, all iwlagn devices except 4965 - * wait here on STATUS_RT_UCODE_ALIVE status bit; if - * timeout before receive the REPLY_ALIVE notification, go back - * and download the Runtime uCode image again. - * 3) For 4965 Runtime uCode, it will not go through this path, - * need to wait for STATUS_RT_UCODE_ALIVE status bit in - * iwl4965_init_alive_start() function; if timeout, need to - * restart and download Init uCode image. - */ - if (priv->ucode_type == UCODE_INIT) - status = STATUS_INIT_UCODE_ALIVE; - else - status = STATUS_RT_UCODE_ALIVE; - if (test_bit(status, &priv->status)) { - IWL_WARN(priv, - "%s uCode already alive? " - "Waiting for alive anyway\n", - (status == STATUS_INIT_UCODE_ALIVE) - ? "INIT" : "Runtime"); - clear_bit(status, &priv->status); - } - ret = wait_event_interruptible_timeout( - priv->wait_command_queue, - test_bit(status, &priv->status), - UCODE_ALIVE_TIMEOUT); - if (!ret) { - if (!test_bit(status, &priv->status)) { - priv->ucode_type = - (status == STATUS_INIT_UCODE_ALIVE) - ? UCODE_NONE : UCODE_INIT; - IWL_ERR(priv, - "%s timeout after %dms\n", - (status == STATUS_INIT_UCODE_ALIVE) - ? "INIT" : "Runtime", - jiffies_to_msecs(UCODE_ALIVE_TIMEOUT)); - continue; - } - } IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); return 0; @@ -1975,18 +2462,6 @@ static void iwl_bg_run_time_calib_work(struct work_struct *work) return; } -static void iwl_bg_up(struct work_struct *data) -{ - struct iwl_priv *priv = container_of(data, struct iwl_priv, up); - - if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; - - mutex_lock(&priv->mutex); - __iwl_up(priv); - mutex_unlock(&priv->mutex); -} - static void iwl_bg_restart(struct work_struct *data) { struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); @@ -2003,7 +2478,13 @@ static void iwl_bg_restart(struct work_struct *data) ieee80211_restart_hw(priv->hw); } else { iwl_down(priv); - queue_work(priv->workqueue, &priv->up); + + if (test_bit(STATUS_EXIT_PENDING, &priv->status)) + return; + + mutex_lock(&priv->mutex); + __iwl_up(priv); + mutex_unlock(&priv->mutex); } } @@ -2119,7 +2600,7 @@ void iwl_post_associate(struct iwl_priv *priv) * If chain noise has already been run, then we need to enable * power management here */ if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE) - iwl_power_update_mode(priv, 0); + iwl_power_update_mode(priv, false); /* Enable Rx differential gain and sensitivity calibrations */ iwl_chain_noise_reset(priv); @@ -2135,6 +2616,71 @@ void iwl_post_associate(struct iwl_priv *priv) #define UCODE_READY_TIMEOUT (4 * HZ) +/* + * Not a mac80211 entry point function, but it fits in with all the + * other mac80211 functions grouped here. + */ +static int iwl_mac_setup_register(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; + + if (priv->cfg->sku & IWL_SKU_N) + hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | + IEEE80211_HW_SUPPORTS_STATIC_SMPS; + + hw->sta_data_size = sizeof(struct iwl_station_priv); + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC); + + hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY | + WIPHY_FLAG_DISABLE_BEACON_HINTS; + + /* + * For now, disable PS by default because it affects + * RX performance significantly. + */ + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + + 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; +} + + static int iwl_mac_start(struct ieee80211_hw *hw) { struct iwl_priv *priv = hw->priv; @@ -2144,21 +2690,7 @@ static int iwl_mac_start(struct ieee80211_hw *hw) /* we should be verifying the device is ready to be opened */ mutex_lock(&priv->mutex); - - /* fetch ucode file from disk, alloc and copy to bus-master buffers ... - * ucode filename and max sizes are card-specific. */ - - if (!priv->ucode_code.len) { - ret = iwl_read_ucode(priv); - if (ret) { - IWL_ERR(priv, "Could not read microcode: %d\n", ret); - mutex_unlock(&priv->mutex); - return ret; - } - } - ret = __iwl_up(priv); - mutex_unlock(&priv->mutex); if (ret) @@ -2182,6 +2714,8 @@ static int iwl_mac_start(struct ieee80211_hw *hw) } } + iwl_led_start(priv); + out: priv->is_open = 1; IWL_DEBUG_MAC80211(priv, "leave\n"); @@ -2199,7 +2733,7 @@ static void iwl_mac_stop(struct ieee80211_hw *hw) priv->is_open = 0; - if (iwl_is_ready_rf(priv)) { + if (iwl_is_ready_rf(priv) || test_bit(STATUS_SCAN_HW, &priv->status)) { /* stop mac, cancel any scan request and clear * RXON_FILTER_ASSOC_MSK BIT */ @@ -2258,6 +2792,10 @@ void iwl_config_ap(struct iwl_priv *priv) IWL_WARN(priv, "REPLY_RXON_TIMING failed - " "Attempting to continue.\n"); + /* AP has all antennas */ + priv->chain_noise_data.active_chains = + priv->hw_params.valid_rx_ant; + iwl_set_rxon_ht(priv, &priv->current_ht_config); if (priv->cfg->ops->hcmd->set_rxon_chain) priv->cfg->ops->hcmd->set_rxon_chain(priv); @@ -2286,10 +2824,11 @@ void iwl_config_ap(struct iwl_priv *priv) /* restore RXON assoc */ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; iwlcore_commit_rxon(priv); + iwl_reset_qos(priv); spin_lock_irqsave(&priv->lock, flags); iwl_activate_qos(priv, 1); spin_unlock_irqrestore(&priv->lock, flags); - iwl_rxon_add_station(priv, iwl_bcast_addr, 0); + iwl_add_bcast_station(priv); } iwl_send_beacon_cmd(priv); @@ -2299,14 +2838,18 @@ void iwl_config_ap(struct iwl_priv *priv) } static void iwl_mac_update_tkip_key(struct ieee80211_hw *hw, - struct ieee80211_key_conf *keyconf, const u8 *addr, - u32 iv32, u16 *phase1key) + struct ieee80211_vif *vif, + struct ieee80211_key_conf *keyconf, + struct ieee80211_sta *sta, + u32 iv32, u16 *phase1key) { struct iwl_priv *priv = hw->priv; IWL_DEBUG_MAC80211(priv, "enter\n"); - iwl_update_tkip_key(priv, keyconf, addr, iv32, phase1key); + iwl_update_tkip_key(priv, keyconf, + sta ? sta->addr : iwl_bcast_addr, + iv32, phase1key); IWL_DEBUG_MAC80211(priv, "leave\n"); } @@ -2381,6 +2924,7 @@ static int iwl_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, } static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, struct ieee80211_sta *sta, u16 tid, u16 *ssn) { @@ -2414,6 +2958,9 @@ static int iwl_mac_ampdu_action(struct ieee80211_hw *hw, return 0; else return ret; + case IEEE80211_AMPDU_TX_OPERATIONAL: + /* do nothing */ + return -EOPNOTSUPP; default: IWL_DEBUG_HT(priv, "unknown\n"); return -EINVAL; @@ -2434,6 +2981,47 @@ static int iwl_mac_get_stats(struct ieee80211_hw *hw, return 0; } +static void iwl_mac_sta_notify(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + enum sta_notify_cmd cmd, + struct ieee80211_sta *sta) +{ + struct iwl_priv *priv = hw->priv; + struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; + int sta_id; + + /* + * TODO: We really should use this callback to + * actually maintain the station table in + * the device. + */ + + switch (cmd) { + case STA_NOTIFY_ADD: + atomic_set(&sta_priv->pending_frames, 0); + if (vif->type == NL80211_IFTYPE_AP) + sta_priv->client = true; + break; + case STA_NOTIFY_SLEEP: + WARN_ON(!sta_priv->client); + sta_priv->asleep = true; + if (atomic_read(&sta_priv->pending_frames) > 0) + ieee80211_sta_block_awake(hw, sta, true); + break; + case STA_NOTIFY_AWAKE: + WARN_ON(!sta_priv->client); + if (!sta_priv->asleep) + break; + sta_priv->asleep = false; + sta_id = iwl_find_station(priv, sta->addr); + if (sta_id != IWL_INVALID_STATION) + iwl_sta_modify_ps_wake(priv, sta_id); + break; + default: + break; + } +} + /***************************************************************************** * * sysfs attributes @@ -2449,15 +3037,15 @@ static int iwl_mac_get_stats(struct ieee80211_hw *hw, * * See the level definitions in iwl for details. * - * FIXME This file can be deprecated as the module parameter is - * writable and users can thus also change the debug level - * using the /sys/module/iwl3945/parameters/debug file. + * The debug_level being managed using sysfs below is a per device debug + * level that is used instead of the global debug level if it (the per + * device debug level) is set. */ - static ssize_t show_debug_level(struct device *d, struct device_attribute *attr, char *buf) { - return sprintf(buf, "0x%08X\n", iwl_debug_level); + struct iwl_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); } static ssize_t store_debug_level(struct device *d, struct device_attribute *attr, @@ -2470,9 +3058,12 @@ static ssize_t store_debug_level(struct device *d, ret = strict_strtoul(buf, 0, &val); if (ret) IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); - else - iwl_debug_level = val; - + else { + priv->debug_level = val; + if (iwl_alloc_traffic_mem(priv)) + IWL_ERR(priv, + "Not enough memory to generate traffic log\n"); + } return strnlen(buf, count); } @@ -2483,39 +3074,6 @@ static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, #endif /* CONFIG_IWLWIFI_DEBUG */ -static ssize_t show_version(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - struct iwl_alive_resp *palive = &priv->card_alive; - ssize_t pos = 0; - u16 eeprom_ver; - - if (palive->is_valid) - pos += sprintf(buf + pos, - "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n" - "fw type: 0x%01X 0x%01X\n", - palive->ucode_major, palive->ucode_minor, - palive->sw_rev[0], palive->sw_rev[1], - palive->ver_type, palive->ver_subtype); - else - pos += sprintf(buf + pos, "fw not loaded\n"); - - if (priv->eeprom) { - eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); - pos += sprintf(buf + pos, "NVM Type: %s, version: 0x%x\n", - (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) - ? "OTP" : "EEPROM", eeprom_ver); - - } else { - pos += sprintf(buf + pos, "EEPROM not initialzed\n"); - } - - return pos; -} - -static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL); - static ssize_t show_temperature(struct device *d, struct device_attribute *attr, char *buf) { @@ -2551,10 +3109,15 @@ static ssize_t store_tx_power(struct device *d, ret = strict_strtoul(buf, 10, &val); if (ret) IWL_INFO(priv, "%s is not in decimal form.\n", buf); - else - iwl_set_tx_power(priv, val, false); - - return count; + else { + ret = iwl_set_tx_power(priv, val, false); + if (ret) + IWL_ERR(priv, "failed setting tx power (0x%d).\n", + ret); + else + ret = count; + } + return ret; } static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); @@ -2639,47 +3202,6 @@ static ssize_t store_filter_flags(struct device *d, static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, store_filter_flags); -static ssize_t store_power_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - int ret; - unsigned long mode; - - - mutex_lock(&priv->mutex); - - ret = strict_strtoul(buf, 10, &mode); - if (ret) - goto out; - - ret = iwl_power_set_user_mode(priv, mode); - if (ret) { - IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n"); - goto out; - } - ret = count; - - out: - mutex_unlock(&priv->mutex); - return ret; -} - -static ssize_t show_power_level(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - int level = priv->power_data.power_mode; - char *p = buf; - - p += sprintf(p, "%d\n", level); - return p - buf + 1; -} - -static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level, - store_power_level); - static ssize_t show_statistics(struct device *d, struct device_attribute *attr, char *buf) @@ -2694,7 +3216,7 @@ static ssize_t show_statistics(struct device *d, return -EAGAIN; mutex_lock(&priv->mutex); - rc = iwl_send_statistics_request(priv, 0); + rc = iwl_send_statistics_request(priv, CMD_SYNC, false); mutex_unlock(&priv->mutex); if (rc) { @@ -2719,6 +3241,40 @@ static ssize_t show_statistics(struct device *d, static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); +static ssize_t show_rts_ht_protection(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + + return sprintf(buf, "%s\n", + priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self"); +} + +static ssize_t store_rts_ht_protection(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 10, &val); + if (ret) + IWL_INFO(priv, "Input is not in decimal form.\n"); + else { + if (!iwl_is_associated(priv)) + priv->cfg->use_rts_for_ht = val ? true : false; + else + IWL_ERR(priv, "Sta associated with AP - " + "Change protection mechanism is not allowed\n"); + ret = count; + } + return ret; +} + +static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO, + show_rts_ht_protection, store_rts_ht_protection); + /***************************************************************************** * @@ -2732,7 +3288,6 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) init_waitqueue_head(&priv->wait_command_queue); - INIT_WORK(&priv->up, iwl_bg_up); INIT_WORK(&priv->restart, iwl_bg_restart); INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish); INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); @@ -2749,6 +3304,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) priv->statistics_periodic.data = (unsigned long)priv; priv->statistics_periodic.function = iwl_bg_statistics_periodic; + init_timer(&priv->ucode_trace); + priv->ucode_trace.data = (unsigned long)priv; + priv->ucode_trace.function = iwl_bg_ucode_trace; + if (!priv->cfg->use_isr_legacy) tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) iwl_irq_tasklet, (unsigned long)priv); @@ -2767,19 +3326,117 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv) cancel_delayed_work(&priv->alive_start); cancel_work_sync(&priv->beacon_update); del_timer_sync(&priv->statistics_periodic); + del_timer_sync(&priv->ucode_trace); +} + +static void iwl_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; + } + } +} + +static int iwl_init_drv(struct iwl_priv *priv) +{ + int ret; + + priv->ibss_beacon = NULL; + + spin_lock_init(&priv->sta_lock); + spin_lock_init(&priv->hcmd_lock); + + INIT_LIST_HEAD(&priv->free_frames); + + mutex_init(&priv->mutex); + mutex_init(&priv->sync_cmd_mutex); + + /* Clear the driver's (not device's) station table */ + iwl_clear_stations_table(priv); + + priv->ieee_channels = NULL; + priv->ieee_rates = NULL; + priv->band = IEEE80211_BAND_2GHZ; + + priv->iw_mode = NL80211_IFTYPE_STATION; + priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; + priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; + + /* initialize force reset */ + priv->force_reset[IWL_RF_RESET].reset_duration = + IWL_DELAY_NEXT_FORCE_RF_RESET; + priv->force_reset[IWL_FW_RESET].reset_duration = + IWL_DELAY_NEXT_FORCE_FW_RELOAD; + + /* 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; + } + iwl_init_hw_rates(priv, priv->ieee_rates); + + return 0; + +err_free_channel_map: + iwl_free_channel_map(priv); +err: + return ret; +} + +static 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); } static struct attribute *iwl_sysfs_entries[] = { &dev_attr_flags.attr, &dev_attr_filter_flags.attr, - &dev_attr_power_level.attr, &dev_attr_statistics.attr, &dev_attr_temperature.attr, &dev_attr_tx_power.attr, + &dev_attr_rts_ht_protection.attr, #ifdef CONFIG_IWLWIFI_DEBUG &dev_attr_debug_level.attr, #endif - &dev_attr_version.attr, NULL }; @@ -2799,12 +3456,12 @@ static struct ieee80211_ops iwl_hw_ops = { .set_key = iwl_mac_set_key, .update_tkip_key = iwl_mac_update_tkip_key, .get_stats = iwl_mac_get_stats, - .get_tx_stats = iwl_mac_get_tx_stats, .conf_tx = iwl_mac_conf_tx, .reset_tsf = iwl_mac_reset_tsf, .bss_info_changed = iwl_bss_info_changed, .ampdu_action = iwl_mac_ampdu_action, - .hw_scan = iwl_mac_hw_scan + .hw_scan = iwl_mac_hw_scan, + .sta_notify = iwl_mac_sta_notify, }; static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) @@ -2847,6 +3504,8 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) #ifdef CONFIG_IWLWIFI_DEBUG atomic_set(&priv->restrict_refcnt, 0); #endif + if (iwl_alloc_traffic_mem(priv)) + IWL_ERR(priv, "Not enough memory to generate traffic log\n"); /************************** * 2. Initializing PCI bus @@ -2892,10 +3551,19 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (unsigned long long) pci_resource_len(pdev, 0)); IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); - /* this spin lock will be used in apm_ops.init and EEPROM access + /* these spin locks will be used in apm_ops.init and EEPROM access * we should init now */ spin_lock_init(&priv->reg_lock); + spin_lock_init(&priv->lock); + + /* + * stop and reset the on-board processor just in case it is in a + * strange state ... like being left stranded by a primary kernel + * and this is now the kdump kernel trying to start up + */ + iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); + iwl_hw_detect(priv); IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s REV=0x%X\n", priv->cfg->name, priv->hw_rev); @@ -2910,12 +3578,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_iounmap; } - /* amp init */ - err = priv->cfg->ops->lib->apm_ops.init(priv); - if (err < 0) { - IWL_ERR(priv, "Failed to init APMG\n"); - goto out_iounmap; - } /***************** * 4. Read EEPROM *****************/ @@ -2976,9 +3638,9 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) iwl_setup_deferred_work(priv); iwl_setup_rx_handlers(priv); - /********************************** - * 8. Setup and register mac80211 - **********************************/ + /********************************************* + * 8. Enable interrupts and read RFKILL state + *********************************************/ /* enable interrupts if needed: hw bug w/a */ pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd); @@ -2989,14 +3651,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) iwl_enable_interrupts(priv); - err = iwl_setup_mac(priv); - if (err) - goto out_remove_sysfs; - - err = iwl_dbgfs_register(priv, DRV_NAME); - if (err) - IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); - /* If platform's RF_KILL switch is NOT set to KILL */ if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) clear_bit(STATUS_RF_KILL_HW, &priv->status); @@ -3008,6 +3662,11 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) iwl_power_initialize(priv); iwl_tt_initialize(priv); + + err = iwl_request_firmware(priv, true); + if (err) + goto out_remove_sysfs; + return 0; out_remove_sysfs: @@ -3030,6 +3689,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) out_pci_disable_device: pci_disable_device(pdev); out_ieee80211_free_hw: + iwl_free_traffic_mem(priv); ieee80211_free_hw(priv->hw); out: return err; @@ -3060,6 +3720,15 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev) iwl_down(priv); } + /* + * Make sure device is reset to low power before unloading driver. + * This may be redundant with iwl_down(), but there are paths to + * run iwl_down() without calling apm_ops.stop(), and there are + * paths to avoid running iwl_down() at all before leaving driver. + * This (inexpensive) call *makes sure* device is reset. + */ + priv->cfg->ops->lib->apm_ops.stop(priv); + iwl_tt_exit(priv); /* make sure we flush any pending irq or @@ -3089,6 +3758,7 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev) * until now... */ destroy_workqueue(priv->workqueue); priv->workqueue = NULL; + iwl_free_traffic_mem(priv); free_irq(priv->pci_dev->irq, priv); pci_disable_msi(priv->pci_dev); @@ -3115,46 +3785,103 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev) *****************************************************************************/ /* Hardware specific file defines the PCI IDs table for that hardware module */ -static struct pci_device_id iwl_hw_card_ids[] = { +static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { #ifdef CONFIG_IWL4965 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)}, {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)}, #endif /* CONFIG_IWL4965 */ #ifdef CONFIG_IWL5000 - {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg)}, - {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg)}, - {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, - {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, - {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, - {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, - {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)}, - {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)}, - {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID, iwl5300_agn_cfg)}, - {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID, iwl5100_agn_cfg)}, -/* 5350 WiFi/WiMax */ - {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, - {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, - {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, -/* 5150 Wifi/WiMax */ - {IWL_PCI_DEVICE(0x423C, PCI_ANY_ID, iwl5150_agn_cfg)}, - {IWL_PCI_DEVICE(0x423D, PCI_ANY_ID, iwl5150_agn_cfg)}, -/* 6000/6050 Series */ - {IWL_PCI_DEVICE(0x0082, 0x1102, iwl6000_2ag_cfg)}, - {IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)}, - {IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)}, - {IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)}, - {IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000_2agn_cfg)}, - {IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)}, - {IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000_2agn_cfg)}, - {IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000_2agn_cfg)}, - {IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)}, - {IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)}, - {IWL_PCI_DEVICE(0x0087, PCI_ANY_ID, iwl6050_2agn_cfg)}, - {IWL_PCI_DEVICE(0x0088, PCI_ANY_ID, iwl6050_3agn_cfg)}, - {IWL_PCI_DEVICE(0x0089, PCI_ANY_ID, iwl6050_2agn_cfg)}, +/* 5100 Series WiFi */ + {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg)}, /* Half Mini Card */ + +/* 5300 Series WiFi */ + {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg)}, /* Half Mini Card */ + +/* 5350 Series WiFi/WiMax */ + {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg)}, /* Mini Card */ + +/* 5150 Series Wifi/WiMax */ + {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */ + + {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg)}, /* Mini Card */ + {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg)}, /* Half Mini Card */ + +/* 6x00 Series */ + {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)}, + {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)}, + {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)}, + {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)}, + {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)}, + {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)}, + {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)}, + +/* 6x50 WiFi/WiMax Series */ + {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg)}, + {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg)}, + {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg)}, + {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg)}, + {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg)}, + {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg)}, + /* 1000 Series WiFi */ - {IWL_PCI_DEVICE(0x0083, PCI_ANY_ID, iwl1000_bgn_cfg)}, - {IWL_PCI_DEVICE(0x0084, PCI_ANY_ID, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg)}, + {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg)}, + {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg)}, + {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg)}, #endif /* CONFIG_IWL5000 */ {0} @@ -3209,9 +3936,9 @@ module_exit(iwl_exit); module_init(iwl_init); #ifdef CONFIG_IWLWIFI_DEBUG -module_param_named(debug50, iwl_debug_level, uint, 0444); +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, 0644); +module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "debug output mask"); #endif