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path: root/drivers/net/wireless/iwlwifi/iwl-core.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-core.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.c262
1 files changed, 66 insertions, 196 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 7bcfa781e0b9..46490d3b95b9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2,7 +2,7 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2012 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
@@ -38,7 +38,6 @@
#include "iwl-core.h"
#include "iwl-io.h"
#include "iwl-power.h"
-#include "iwl-agn.h"
#include "iwl-shared.h"
#include "iwl-agn.h"
#include "iwl-trans.h"
@@ -114,7 +113,7 @@ int iwl_init_geos(struct iwl_priv *priv)
if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
- set_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status);
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
return 0;
}
@@ -137,7 +136,7 @@ int iwl_init_geos(struct iwl_priv *priv)
sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
- if (cfg(priv)->sku & EEPROM_SKU_CAP_11N_ENABLE)
+ if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE)
iwl_init_ht_hw_capab(priv, &sband->ht_cap,
IEEE80211_BAND_5GHZ);
@@ -147,7 +146,7 @@ int iwl_init_geos(struct iwl_priv *priv)
sband->bitrates = rates;
sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
- if (cfg(priv)->sku & EEPROM_SKU_CAP_11N_ENABLE)
+ if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE)
iwl_init_ht_hw_capab(priv, &sband->ht_cap,
IEEE80211_BAND_2GHZ);
@@ -202,19 +201,18 @@ int iwl_init_geos(struct iwl_priv *priv)
priv->tx_power_next = max_tx_power;
if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
- cfg(priv)->sku & EEPROM_SKU_CAP_BAND_52GHZ) {
- char buf[32];
- bus_get_hw_id_string(bus(priv), buf, sizeof(buf));
+ hw_params(priv).sku & EEPROM_SKU_CAP_BAND_52GHZ) {
IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
- "Please send your %s to maintainer.\n", buf);
- cfg(priv)->sku &= ~EEPROM_SKU_CAP_BAND_52GHZ;
+ "Please send your %s to maintainer.\n",
+ trans(priv)->hw_id_str);
+ hw_params(priv).sku &= ~EEPROM_SKU_CAP_BAND_52GHZ;
}
IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
priv->bands[IEEE80211_BAND_2GHZ].n_channels,
priv->bands[IEEE80211_BAND_5GHZ].n_channels);
- set_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status);
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
return 0;
}
@@ -226,7 +224,7 @@ void iwl_free_geos(struct iwl_priv *priv)
{
kfree(priv->ieee_channels);
kfree(priv->ieee_rates);
- clear_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status);
+ clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
}
static bool iwl_is_channel_extension(struct iwl_priv *priv,
@@ -318,7 +316,7 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
conf = &priv->hw->conf;
- lockdep_assert_held(&priv->shrd->mutex);
+ lockdep_assert_held(&priv->mutex);
memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd));
@@ -371,7 +369,7 @@ int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
le32_to_cpu(ctx->timing.beacon_init_val),
le16_to_cpu(ctx->timing.atim_window));
- return iwl_trans_send_cmd_pdu(trans(priv), ctx->rxon_timing_cmd,
+ return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
CMD_SYNC, sizeof(ctx->timing), &ctx->timing);
}
@@ -644,7 +642,7 @@ u8 iwl_get_single_channel_number(struct iwl_priv *priv,
* NOTE: Does not commit to the hardware; it sets appropriate bit fields
* in the staging RXON flag structure based on the ch->band
*/
-int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
+void iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
struct iwl_rxon_context *ctx)
{
enum ieee80211_band band = ch->band;
@@ -652,7 +650,7 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
if ((le16_to_cpu(ctx->staging.channel) == channel) &&
(priv->band == band))
- return 0;
+ return;
ctx->staging.channel = cpu_to_le16(channel);
if (band == IEEE80211_BAND_5GHZ)
@@ -664,7 +662,6 @@ int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band);
- return 0;
}
void iwl_set_flags_for_band(struct iwl_priv *priv,
@@ -801,11 +798,10 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
*/
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING,
- &priv->shrd->status))
+ if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
ieee80211_chswitch_done(ctx->vif, is_success);
}
@@ -832,24 +828,32 @@ void iwl_print_rx_config_cmd(struct iwl_priv *priv,
}
#endif
-void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
+static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
{
unsigned int reload_msec;
unsigned long reload_jiffies;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (iwl_have_debug_level(IWL_DL_FW_ERRORS))
+ iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS);
+#endif
+
+ /* uCode is no longer loaded. */
+ priv->ucode_loaded = false;
+
/* Set the FW error flag -- cleared on iwl_down */
set_bit(STATUS_FW_ERROR, &priv->shrd->status);
/* Cancel currently queued command. */
clear_bit(STATUS_HCMD_ACTIVE, &priv->shrd->status);
- iwl_abort_notification_waits(priv->shrd);
+ iwl_abort_notification_waits(&priv->notif_wait);
/* Keep the restart process from trying to send host
* commands by clearing the ready bit */
- clear_bit(STATUS_READY, &priv->shrd->status);
+ clear_bit(STATUS_READY, &priv->status);
- wake_up(&priv->shrd->wait_command_queue);
+ wake_up(&trans(priv)->wait_command_queue);
if (!ondemand) {
/*
@@ -872,140 +876,17 @@ void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
priv->reload_count = 0;
}
- if (!test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
if (iwlagn_mod_params.restart_fw) {
IWL_DEBUG_FW_ERRORS(priv,
"Restarting adapter due to uCode error.\n");
- queue_work(priv->shrd->workqueue, &priv->restart);
+ queue_work(priv->workqueue, &priv->restart);
} else
IWL_DEBUG_FW_ERRORS(priv,
"Detected FW error, but not restarting\n");
}
}
-static int iwl_apm_stop_master(struct iwl_priv *priv)
-{
- int ret = 0;
-
- /* stop device's busmaster DMA activity */
- iwl_set_bit(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
-
- ret = iwl_poll_bit(bus(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;
-}
-
-void iwl_apm_stop(struct iwl_priv *priv)
-{
- IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n");
-
- clear_bit(STATUS_DEVICE_ENABLED, &priv->shrd->status);
-
- /* Stop device's DMA activity */
- iwl_apm_stop_master(priv);
-
- /* Reset the entire device */
- iwl_set_bit(bus(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(bus(priv), CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
-}
-
-
-/*
- * 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;
- 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(bus(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(bus(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(bus(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
- */
- iwl_set_bit(bus(priv), CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
-
- bus_apm_config(bus(priv));
-
- /* Configure analog phase-lock-loop before activating to D0A */
- if (cfg(priv)->base_params->pll_cfg_val)
- iwl_set_bit(bus(priv), CSR_ANA_PLL_CFG,
- cfg(priv)->base_params->pll_cfg_val);
-
- /*
- * Set "initialization complete" bit to move adapter from
- * D0U* --> D0A* (powered-up active) state.
- */
- iwl_set_bit(bus(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(bus(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 clock and wait for it to stabilize.
- *
- * 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.
- */
- iwl_write_prph(bus(priv), APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
- udelay(20);
-
- /* Disable L1-Active */
- iwl_set_bits_prph(bus(priv), APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
-
- set_bit(STATUS_DEVICE_ENABLED, &priv->shrd->status);
-
-out:
- return ret;
-}
-
-
int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
{
int ret;
@@ -1013,7 +894,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
bool defer;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- lockdep_assert_held(&priv->shrd->mutex);
+ lockdep_assert_held(&priv->mutex);
if (priv->tx_power_user_lmt == tx_power && !force)
return 0;
@@ -1033,7 +914,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
return -EINVAL;
}
- if (!iwl_is_ready_rf(priv->shrd))
+ if (!iwl_is_ready_rf(priv))
return -EIO;
/* scan complete and commit_rxon use tx_power_next value,
@@ -1041,7 +922,7 @@ int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
priv->tx_power_next = tx_power;
/* do not set tx power when scanning or channel changing */
- defer = test_bit(STATUS_SCANNING, &priv->shrd->status) ||
+ defer = test_bit(STATUS_SCANNING, &priv->status) ||
memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging));
if (defer && !force) {
IWL_DEBUG_INFO(priv, "Deferring tx power set\n");
@@ -1079,7 +960,7 @@ void iwl_send_bt_config(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv, "BT coex %s\n",
(bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
- if (iwl_trans_send_cmd_pdu(trans(priv), REPLY_BT_CONFIG,
+ if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd))
IWL_ERR(priv, "failed to send BT Coex Config\n");
}
@@ -1092,12 +973,12 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
};
if (flags & CMD_ASYNC)
- return iwl_trans_send_cmd_pdu(trans(priv), REPLY_STATISTICS_CMD,
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
CMD_ASYNC,
sizeof(struct iwl_statistics_cmd),
&statistics_cmd);
else
- return iwl_trans_send_cmd_pdu(trans(priv), REPLY_STATISTICS_CMD,
+ return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
CMD_SYNC,
sizeof(struct iwl_statistics_cmd),
&statistics_cmd);
@@ -1124,7 +1005,7 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv)
{
u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
- if (iwl_get_debug_level(priv->shrd) & IWL_DL_TX) {
+ if (iwl_have_debug_level(IWL_DL_TX)) {
if (!priv->tx_traffic) {
priv->tx_traffic =
kzalloc(traffic_size, GFP_KERNEL);
@@ -1132,7 +1013,7 @@ int iwl_alloc_traffic_mem(struct iwl_priv *priv)
return -ENOMEM;
}
}
- if (iwl_get_debug_level(priv->shrd) & IWL_DL_RX) {
+ if (iwl_have_debug_level(IWL_DL_RX)) {
if (!priv->rx_traffic) {
priv->rx_traffic =
kzalloc(traffic_size, GFP_KERNEL);
@@ -1159,7 +1040,7 @@ void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
__le16 fc;
u16 len;
- if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_TX)))
+ if (likely(!iwl_have_debug_level(IWL_DL_TX)))
return;
if (!priv->tx_traffic)
@@ -1183,7 +1064,7 @@ void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
__le16 fc;
u16 len;
- if (likely(!(iwl_get_debug_level(priv->shrd) & IWL_DL_RX)))
+ if (likely(!iwl_have_debug_level(IWL_DL_RX)))
return;
if (!priv->rx_traffic)
@@ -1340,7 +1221,7 @@ void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
static void iwl_force_rf_reset(struct iwl_priv *priv)
{
- if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
if (!iwl_is_any_associated(priv)) {
@@ -1365,7 +1246,7 @@ int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
{
struct iwl_force_reset *force_reset;
- if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return -EINVAL;
if (mode >= IWL_MAX_FORCE_RESET) {
@@ -1421,7 +1302,7 @@ int iwl_cmd_echo_test(struct iwl_priv *priv)
.flags = CMD_SYNC,
};
- ret = iwl_trans_send_cmd(trans(priv), &cmd);
+ ret = iwl_dvm_send_cmd(priv, &cmd);
if (ret)
IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
else
@@ -1455,30 +1336,20 @@ void iwl_bg_watchdog(unsigned long data)
int cnt;
unsigned long timeout;
- if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- if (iwl_is_rfkill(priv->shrd))
+ if (iwl_is_rfkill(priv))
return;
- timeout = cfg(priv)->base_params->wd_timeout;
+ timeout = hw_params(priv).wd_timeout;
if (timeout == 0)
return;
- /* monitor and check for stuck cmd queue */
- if (iwl_check_stuck_queue(priv, priv->shrd->cmd_queue))
- return;
-
- /* monitor and check for other stuck queues */
- if (iwl_is_any_associated(priv)) {
- for (cnt = 0; cnt < hw_params(priv).max_txq_num; cnt++) {
- /* skip as we already checked the command queue */
- if (cnt == priv->shrd->cmd_queue)
- continue;
- if (iwl_check_stuck_queue(priv, cnt))
- return;
- }
- }
+ /* monitor and check for stuck queues */
+ for (cnt = 0; cnt < cfg(priv)->base_params->num_of_queues; cnt++)
+ if (iwl_check_stuck_queue(priv, cnt))
+ return;
mod_timer(&priv->watchdog, jiffies +
msecs_to_jiffies(IWL_WD_TICK(timeout)));
@@ -1486,7 +1357,7 @@ void iwl_bg_watchdog(unsigned long data)
void iwl_setup_watchdog(struct iwl_priv *priv)
{
- unsigned int timeout = cfg(priv)->base_params->wd_timeout;
+ unsigned int timeout = hw_params(priv).wd_timeout;
if (!iwlagn_mod_params.wd_disable) {
/* use system default */
@@ -1580,31 +1451,30 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
return cpu_to_le32(res);
}
-void iwl_set_hw_rfkill_state(struct iwl_priv *priv, bool state)
+void iwl_nic_error(struct iwl_op_mode *op_mode)
{
- wiphy_rfkill_set_hw_state(priv->hw->wiphy, state);
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ iwlagn_fw_error(priv, false);
}
-void iwl_nic_config(struct iwl_priv *priv)
+void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
{
- cfg(priv)->lib->nic_config(priv);
+ struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
+
+ if (state)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ wiphy_rfkill_set_hw_state(priv->hw->wiphy, state);
}
-void iwl_free_skb(struct iwl_priv *priv, struct sk_buff *skb)
+void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
{
struct ieee80211_tx_info *info;
info = IEEE80211_SKB_CB(skb);
- kmem_cache_free(priv->tx_cmd_pool, (info->driver_data[1]));
+ kmem_cache_free(iwl_tx_cmd_pool, (info->driver_data[1]));
dev_kfree_skb_any(skb);
}
-
-void iwl_stop_sw_queue(struct iwl_priv *priv, u8 ac)
-{
- ieee80211_stop_queue(priv->hw, ac);
-}
-
-void iwl_wake_sw_queue(struct iwl_priv *priv, u8 ac)
-{
- ieee80211_wake_queue(priv->hw, ac);
-}