*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/etherdevice.h>
+#include <linux/sched.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
MODULE_LICENSE("GPL");
+/*
+ * set bt_coex_active to true, uCode will do kill/defer
+ * every time the priority line is asserted (BT is sending signals on the
+ * priority line in the PCIx).
+ * set bt_coex_active to false, uCode will ignore the BT activity and
+ * perform the normal operation
+ *
+ * User might experience transmit issue on some platform due to WiFi/BT
+ * co-exist problem. The possible behaviors are:
+ * Able to scan and finding all the available AP
+ * Not able to associate with any AP
+ * On those platforms, WiFi communication can be restored by set
+ * "bt_coex_active" module parameter to "false"
+ *
+ * default: bt_coex_active = true (BT_COEX_ENABLE)
+ */
+static bool bt_coex_active = true;
+module_param(bt_coex_active, bool, S_IRUGO);
+MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist\n");
+
+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, \
}
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);
/* 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 calibration timer to default (512 usecs) */
+ iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF);
+
spin_unlock_irqrestore(&priv->lock, flags);
ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
if (priv->cfg->ht_greenfield_support)
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));
-
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;
}
}
-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
*/
}
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 ||
+ return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
priv->current_ht_config.single_chain_sufficient;
}
}
/*
- * When we are in power saving, there's no difference between
- * using multiple chains or just a single chain, but due to the
- * lack of SM PS we lose a lot of throughput if we use just a
- * single chain.
- *
- * Therefore, use the active count here (which will use multiple
- * chains unless connected to a legacy AP).
+ * 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)
{
- return active_cnt;
+ /* # Rx chains when idling, depending on SMPS mode */
+ switch (priv->current_ht_config.smps) {
+ case IEEE80211_SMPS_STATIC:
+ case IEEE80211_SMPS_DYNAMIC:
+ return IWL_NUM_IDLE_CHAINS_SINGLE;
+ case IEEE80211_SMPS_OFF:
+ return active_cnt;
+ default:
+ WARN(1, "invalid SMPS mode %d",
+ priv->current_ht_config.smps);
+ return active_cnt;
+ }
}
/* up to 4 chains */
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;
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
/* Cancel currently queued command. */
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ priv->cfg->ops->lib->dump_nic_error_log(priv);
+ if (priv->cfg->ops->lib->dump_csr)
+ priv->cfg->ops->lib->dump_csr(priv);
+ if (priv->cfg->ops->lib->dump_fh)
+ priv->cfg->ops->lib->dump_fh(priv, NULL, false);
+ priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, 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);
}
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,
}
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;
}
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;
-
- /* 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;
}
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 */
if (val == 0xffffffff)
val = 0;
+ /*
+ * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit
+ * (bit 15 before shifting it to 31) to clear when using interrupt
+ * coalescing. fortunately, bits 18 and 19 stay set when this happens
+ * so we use them to decide on the real state of the Rx bit.
+ * In order words, bit 15 is set if bit 18 or bit 19 are set.
+ */
+ if (val & 0xC0000)
+ val |= 0x8000;
+
inta = (0xff & val) | ((0xff00 & val) << 16);
IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
inta, inta_mask, val);
int iwl_send_bt_config(struct iwl_priv *priv)
{
struct iwl_bt_cmd bt_cmd = {
- .flags = 3,
- .lead_time = 0xAA,
- .max_kill = 1,
+ .lead_time = BT_LEAD_TIME_DEF,
+ .max_kill = BT_MAX_KILL_DEF,
.kill_ack_mask = 0,
.kill_cts_mask = 0,
};
+ if (!bt_coex_active)
+ bt_cmd.flags = BT_COEX_DISABLE;
+ else
+ bt_cmd.flags = BT_COEX_ENABLE;
+
+ IWL_DEBUG_INFO(priv, "BT coex %s\n",
+ (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
+
return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
sizeof(struct iwl_bt_cmd), &bt_cmd);
}
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);
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 =
"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);
"succeeded, "
"critical temperature is %d\n",
priv->hw_params.ct_kill_threshold);
- break;
}
}
EXPORT_SYMBOL(iwl_rf_kill_ct_config);
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);
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,
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",
switch (priv->iw_mode) {
case NL80211_IFTYPE_STATION:
rcu_read_lock();
- sta = ieee80211_find_sta(priv->hw, priv->bssid);
+ sta = ieee80211_find_sta(priv->vif, priv->bssid);
if (sta) {
struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
int maxstreams;
IWL_DEBUG_MAC80211(priv, "leave\n");
}
+static inline void iwl_set_no_assoc(struct iwl_priv *priv)
+{
+ 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
+ * sent
+ */
+ priv->staging_rxon.filter_flags &=
+ ~RXON_FILTER_ASSOC_MSK;
+ priv->staging_rxon.assoc_id = 0;
+ iwlcore_commit_rxon(priv);
+}
+
#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
void iwl_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
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.
if (!iwl_is_rfkill(priv))
priv->cfg->ops->lib->post_associate(priv);
} else
- priv->assoc_id = 0;
-
+ iwl_set_no_assoc(priv);
}
if (changes && iwl_is_associated(priv) && priv->assoc_id) {
}
}
+ if (changes & BSS_CHANGED_BEACON_ENABLED) {
+ if (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);
+ } else
+ iwl_set_no_assoc(priv);
+ }
+
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "leave\n");
EXPORT_SYMBOL(iwl_set_mode);
int iwl_mac_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
+ struct ieee80211_vif *vif)
{
struct iwl_priv *priv = hw->priv;
- unsigned long flags;
+ int err = 0;
+
+ IWL_DEBUG_MAC80211(priv, "enter: type %d\n", vif->type);
- IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
+ mutex_lock(&priv->mutex);
if (priv->vif) {
IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
- return -EOPNOTSUPP;
+ err = -EOPNOTSUPP;
+ goto out;
}
- spin_lock_irqsave(&priv->lock, flags);
- priv->vif = conf->vif;
- priv->iw_mode = conf->type;
-
- spin_unlock_irqrestore(&priv->lock, flags);
+ priv->vif = vif;
+ priv->iw_mode = vif->type;
- mutex_lock(&priv->mutex);
-
- if (conf->mac_addr) {
- IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr);
- memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+ if (vif->addr) {
+ IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr);
+ memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
}
- if (iwl_set_mode(priv, conf->type) == -EAGAIN)
+ if (iwl_set_mode(priv, vif->type) == -EAGAIN)
/* we are not ready, will run again when ready */
set_bit(STATUS_MODE_PENDING, &priv->status);
+ out:
mutex_unlock(&priv->mutex);
IWL_DEBUG_MAC80211(priv, "leave\n");
- return 0;
+ return err;
}
EXPORT_SYMBOL(iwl_mac_add_interface);
void iwl_mac_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
+ struct ieee80211_vif *vif)
{
struct iwl_priv *priv = hw->priv;
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwlcore_commit_rxon(priv);
}
- if (priv->vif == conf->vif) {
+ if (priv->vif == vif) {
priv->vif = NULL;
memset(priv->bssid, 0, ETH_ALEN);
}
IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
}
+ if (changed & (IEEE80211_CONF_CHANGE_SMPS |
+ IEEE80211_CONF_CHANGE_CHANNEL)) {
+ /* mac80211 uses static for non-HT which is what we want */
+ priv->current_ht_config.smps = conf->smps_mode;
+
+ /*
+ * Recalculate chain counts.
+ *
+ * If monitor mode is enabled then mac80211 will
+ * set up the SM PS mode to OFF if an HT channel is
+ * configured.
+ */
+ if (priv->cfg->ops->hcmd->set_rxon_chain)
+ priv->cfg->ops->hcmd->set_rxon_chain(priv);
+ }
/* during scanning mac80211 will delay channel setting until
* scan finish with changed = 0
if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
priv->staging_rxon.flags = 0;
+ iwl_set_rxon_ht(priv, ht_conf);
iwl_set_rxon_channel(priv, conf->channel);
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
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");
iwl_set_tx_power(priv, conf->power_level, false);
}
- /* call to ensure that 4965 rx_chain is set properly in monitor mode */
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv);
-
if (!iwl_is_ready(priv)) {
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
goto out;
}
EXPORT_SYMBOL(iwl_mac_config);
-int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats)
-{
- struct iwl_priv *priv = hw->priv;
- int i, avail;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- unsigned long flags;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for (i = 0; i < AC_NUM; i++) {
- txq = &priv->txq[i];
- q = &txq->q;
- avail = iwl_queue_space(q);
-
- stats[i].len = q->n_window - avail;
- stats[i].limit = q->n_window - q->high_mark;
- stats[i].count = q->n_window;
-
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_mac_get_tx_stats);
-
void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
{
struct iwl_priv *priv = hw->priv;
}
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)
}
}
-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;
}
/*
stats->data_cnt++;
stats->data_bytes += len;
}
+ iwl_leds_background(priv);
}
EXPORT_SYMBOL(iwl_update_stats);
#endif
+const static char *get_csr_string(int cmd)
+{
+ switch (cmd) {
+ IWL_CMD(CSR_HW_IF_CONFIG_REG);
+ IWL_CMD(CSR_INT_COALESCING);
+ IWL_CMD(CSR_INT);
+ IWL_CMD(CSR_INT_MASK);
+ IWL_CMD(CSR_FH_INT_STATUS);
+ IWL_CMD(CSR_GPIO_IN);
+ IWL_CMD(CSR_RESET);
+ IWL_CMD(CSR_GP_CNTRL);
+ IWL_CMD(CSR_HW_REV);
+ IWL_CMD(CSR_EEPROM_REG);
+ IWL_CMD(CSR_EEPROM_GP);
+ IWL_CMD(CSR_OTP_GP_REG);
+ IWL_CMD(CSR_GIO_REG);
+ IWL_CMD(CSR_GP_UCODE_REG);
+ IWL_CMD(CSR_GP_DRIVER_REG);
+ IWL_CMD(CSR_UCODE_DRV_GP1);
+ IWL_CMD(CSR_UCODE_DRV_GP2);
+ IWL_CMD(CSR_LED_REG);
+ IWL_CMD(CSR_DRAM_INT_TBL_REG);
+ IWL_CMD(CSR_GIO_CHICKEN_BITS);
+ IWL_CMD(CSR_ANA_PLL_CFG);
+ IWL_CMD(CSR_HW_REV_WA_REG);
+ IWL_CMD(CSR_DBG_HPET_MEM_REG);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+void iwl_dump_csr(struct iwl_priv *priv)
+{
+ int i;
+ u32 csr_tbl[] = {
+ CSR_HW_IF_CONFIG_REG,
+ CSR_INT_COALESCING,
+ CSR_INT,
+ CSR_INT_MASK,
+ CSR_FH_INT_STATUS,
+ CSR_GPIO_IN,
+ CSR_RESET,
+ CSR_GP_CNTRL,
+ CSR_HW_REV,
+ CSR_EEPROM_REG,
+ CSR_EEPROM_GP,
+ CSR_OTP_GP_REG,
+ CSR_GIO_REG,
+ CSR_GP_UCODE_REG,
+ CSR_GP_DRIVER_REG,
+ CSR_UCODE_DRV_GP1,
+ CSR_UCODE_DRV_GP2,
+ CSR_LED_REG,
+ CSR_DRAM_INT_TBL_REG,
+ CSR_GIO_CHICKEN_BITS,
+ CSR_ANA_PLL_CFG,
+ CSR_HW_REV_WA_REG,
+ CSR_DBG_HPET_MEM_REG
+ };
+ IWL_ERR(priv, "CSR values:\n");
+ IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is "
+ "CSR_INT_PERIODIC_REG)\n");
+ for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) {
+ IWL_ERR(priv, " %25s: 0X%08x\n",
+ get_csr_string(csr_tbl[i]),
+ iwl_read32(priv, csr_tbl[i]));
+ }
+}
+EXPORT_SYMBOL(iwl_dump_csr);
+
+const static char *get_fh_string(int cmd)
+{
+ switch (cmd) {
+ IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG);
+ IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG);
+ IWL_CMD(FH_RSCSR_CHNL0_WPTR);
+ IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG);
+ IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG);
+ IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG);
+ IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV);
+ IWL_CMD(FH_TSSR_TX_STATUS_REG);
+ IWL_CMD(FH_TSSR_TX_ERROR_REG);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display)
+{
+ int i;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ int pos = 0;
+ size_t bufsz = 0;
+#endif
+ u32 fh_tbl[] = {
+ FH_RSCSR_CHNL0_STTS_WPTR_REG,
+ FH_RSCSR_CHNL0_RBDCB_BASE_REG,
+ FH_RSCSR_CHNL0_WPTR,
+ FH_MEM_RCSR_CHNL0_CONFIG_REG,
+ FH_MEM_RSSR_SHARED_CTRL_REG,
+ FH_MEM_RSSR_RX_STATUS_REG,
+ FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV,
+ FH_TSSR_TX_STATUS_REG,
+ FH_TSSR_TX_ERROR_REG
+ };
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (display) {
+ bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+ *buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!*buf)
+ return -ENOMEM;
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ " %34s: 0X%08x\n",
+ get_fh_string(fh_tbl[i]),
+ iwl_read_direct32(priv, fh_tbl[i]));
+ }
+ return pos;
+ }
+#endif
+ IWL_ERR(priv, "FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ IWL_ERR(priv, " %34s: 0X%08x\n",
+ get_fh_string(fh_tbl[i]),
+ iwl_read_direct32(priv, fh_tbl[i]));
+ }
+ return 0;
+}
+EXPORT_SYMBOL(iwl_dump_fh);
+
+static void iwl_force_rf_reset(struct iwl_priv *priv)
+{
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (!iwl_is_associated(priv)) {
+ IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n");
+ return;
+ }
+ /*
+ * There is no easy and better way to force reset the radio,
+ * the only known method is switching channel which will force to
+ * reset and tune the radio.
+ * Use internal short scan (single channel) operation to should
+ * achieve this objective.
+ * Driver should reset the radio when number of consecutive missed
+ * beacon, or any other uCode error condition detected.
+ */
+ IWL_DEBUG_INFO(priv, "perform radio reset.\n");
+ iwl_internal_short_hw_scan(priv);
+ return;
+}
+
+#define IWL_DELAY_NEXT_FORCE_RESET (HZ*3)
+
+int iwl_force_reset(struct iwl_priv *priv, int mode)
+{
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return -EINVAL;
+
+ if (priv->last_force_reset_jiffies &&
+ time_after(priv->last_force_reset_jiffies +
+ IWL_DELAY_NEXT_FORCE_RESET, jiffies)) {
+ IWL_DEBUG_INFO(priv, "force reset rejected\n");
+ return -EAGAIN;
+ }
+
+ IWL_DEBUG_INFO(priv, "perform force reset (%d)\n", mode);
+
+ switch (mode) {
+ case IWL_RF_RESET:
+ iwl_force_rf_reset(priv);
+ break;
+ case IWL_FW_RESET:
+ IWL_ERR(priv, "On demand firmware reload\n");
+ /* Set the FW error flag -- cleared on iwl_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
+ wake_up_interruptible(&priv->wait_command_queue);
+ /*
+ * Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit
+ */
+ clear_bit(STATUS_READY, &priv->status);
+ queue_work(priv->workqueue, &priv->restart);
+ break;
+ default:
+ IWL_DEBUG_INFO(priv, "invalid reset request.\n");
+ return -EINVAL;
+ }
+ priv->last_force_reset_jiffies = jiffies;
+
+ return 0;
+}
+
#ifdef CONFIG_PM
int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff