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iwlwifi: do not reload fw if WiMAX own the RF

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For WiFi/WiMAX combo devices, if WiMAX own the RF, WiFi driver
try to access RF and fail. This is the W/A to To avoid WiFi keep
reloading firmware and try to access RF again.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-12-07 08:06:31 -08:00
parent 33c68770a8
commit 50619ac9ba
5 changed files with 25 additions and 1 deletions
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3
drivers/net/wireless/iwlwifi/iwl-5000.c
View file

@ -593,6 +593,7 @@ struct iwl_cfg iwl5350_agn_cfg = {
.base_params = &iwl5000_base_params,
.ht_params = &iwl5000_ht_params,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl5150_agn_cfg = {
@ -608,6 +609,7 @@ struct iwl_cfg iwl5150_agn_cfg = {
.ht_params = &iwl5000_ht_params,
.need_dc_calib = true,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl5150_abg_cfg = {
@ -622,6 +624,7 @@ struct iwl_cfg iwl5150_abg_cfg = {
.base_params = &iwl5000_base_params,
.need_dc_calib = true,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
};
MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));

3
drivers/net/wireless/iwlwifi/iwl-6000.c
View file

@ -782,6 +782,7 @@ struct iwl_cfg iwl6050_2agn_cfg = {
.ht_params = &iwl6000_ht_params,
.need_dc_calib = true,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl6150_bgn_cfg = {
@ -797,6 +798,7 @@ struct iwl_cfg iwl6150_bgn_cfg = {
.ht_params = &iwl6000_ht_params,
.need_dc_calib = true,
.led_mode = IWL_LED_RF_STATE,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl6050_2abg_cfg = {
@ -811,6 +813,7 @@ struct iwl_cfg iwl6050_2abg_cfg = {
.base_params = &iwl6050_base_params,
.need_dc_calib = true,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
};
struct iwl_cfg iwl6000_3agn_cfg = {

16
drivers/net/wireless/iwlwifi/iwl-core.c
View file

@ -957,6 +957,22 @@ void iwl_irq_handle_error(struct iwl_priv *priv)
/* Cancel currently queued command. */
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
/* W/A for WiFi/WiMAX coex and WiMAX own the RF */
if (priv->cfg->internal_wimax_coex &&
(!(iwl_read_prph(priv, APMG_CLK_CTRL_REG) &
APMS_CLK_VAL_MRB_FUNC_MODE) ||
(iwl_read_prph(priv, APMG_PS_CTRL_REG) &
APMG_PS_CTRL_VAL_RESET_REQ))) {
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);
IWL_ERR(priv, "RF is used by WiMAX\n");
return;
}
IWL_ERR(priv, "Loaded firmware version: %s\n",
priv->hw->wiphy->fw_version);

2
drivers/net/wireless/iwlwifi/iwl-core.h
View file

@ -365,6 +365,7 @@ struct iwl_ht_params {
* @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
* @adv_pm: advance power management
* @rx_with_siso_diversity: 1x1 device with rx antenna diversity
* @internal_wimax_coex: internal wifi/wimax combo device
*
* We enable the driver to be backward compatible wrt API version. The
* driver specifies which APIs it supports (with @ucode_api_max being the
@ -414,6 +415,7 @@ struct iwl_cfg {
enum iwl_led_mode led_mode;
const bool adv_pm;
const bool rx_with_siso_diversity;
const bool internal_wimax_coex;
};
/***************************

2
drivers/net/wireless/iwlwifi/iwl-prph.h
View file

@ -83,10 +83,10 @@
#define APMG_DIGITAL_SVR_REG (APMG_BASE + 0x0058)
#define APMG_ANALOG_SVR_REG (APMG_BASE + 0x006C)
#define APMS_CLK_VAL_MRB_FUNC_MODE (0x00000001)
#define APMG_CLK_VAL_DMA_CLK_RQT (0x00000200)
#define APMG_CLK_VAL_BSM_CLK_RQT (0x00000800)
#define APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS (0x00400000)
#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)