From 445c2dff409ef9de5d2f964d20917ab238fd266f Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 15 May 2008 13:54:16 +0800 Subject: iwlwifi: add debugfs to disable/enable run time calibration This patch adds functionality to debugfs to enable or disable chain noise or sensitivity calibrations. Signed-off-by: Tomas Winkler Signed-off-by: Emmanuel Grumbach Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-calib.c | 9 +++++++++ drivers/net/wireless/iwlwifi/iwl-calib.h | 4 +++- drivers/net/wireless/iwlwifi/iwl-debug.h | 9 ++++++++- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 20 +++++++++++++++++++- drivers/net/wireless/iwlwifi/iwl-dev.h | 6 +++++- 5 files changed, 44 insertions(+), 4 deletions(-) (limited to 'drivers/net/wireless') diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c index 1289d4c91ab..beb9716165c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-calib.c +++ b/drivers/net/wireless/iwlwifi/iwl-calib.c @@ -426,6 +426,9 @@ void iwl_init_sensitivity(struct iwl_priv *priv) struct iwl_sensitivity_data *data = NULL; const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens; + if (priv->disable_sens_cal) + return; + IWL_DEBUG_CALIB("Start iwl_init_sensitivity\n"); /* Clear driver's sensitivity algo data */ @@ -486,6 +489,9 @@ void iwl_sensitivity_calibration(struct iwl_priv *priv, unsigned long flags; struct statistics_general_data statis; + if (priv->disable_sens_cal) + return; + data = &(priv->sensitivity_data); if (!iwl_is_associated(priv)) { @@ -608,6 +614,9 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv, unsigned long flags; struct statistics_rx_non_phy *rx_info = &(stat_resp->rx.general); + if (priv->disable_chain_noise_cal) + return; + data = &(priv->chain_noise_data); /* Accumulate just the first 20 beacons after the first association, diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.h b/drivers/net/wireless/iwlwifi/iwl-calib.h index 933b0b0a797..e690668f08a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-calib.h +++ b/drivers/net/wireless/iwlwifi/iwl-calib.h @@ -81,7 +81,9 @@ void iwl_init_sensitivity(struct iwl_priv *priv); static inline void iwl_chain_noise_reset(struct iwl_priv *priv) { - if (priv->cfg->ops->utils->chain_noise_reset) + + if (!priv->disable_chain_noise_cal && + priv->cfg->ops->utils->chain_noise_reset) priv->cfg->ops->utils->chain_noise_reset(priv); } #else diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 2f24594c5fe..c3f8e90c5ba 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -45,13 +45,20 @@ struct iwl_debugfs { const char *name; struct dentry *dir_drv; struct dentry *dir_data; - struct dir_data_files{ + struct dentry *dir_rf; + struct dir_data_files { struct dentry *file_sram; struct dentry *file_eeprom; struct dentry *file_stations; struct dentry *file_rx_statistics; struct dentry *file_tx_statistics; } dbgfs_data_files; + struct dir_rf_files { +#ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB + struct dentry *file_disable_sensitivity; + struct dentry *file_disable_chain_noise; +#endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ + } dbgfs_rf_files; u32 sram_offset; u32 sram_len; }; diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index ad25806dfaf..f7ec2009cdf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -55,6 +55,13 @@ goto err; \ } while (0) +#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ + dbgfs->dbgfs_##parent##_files.file_##name = \ + debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr); \ + if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)) \ + goto err; \ +} while (0) + #define DEBUGFS_REMOVE(name) do { \ debugfs_remove(name); \ name = NULL; \ @@ -344,12 +351,17 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) } DEBUGFS_ADD_DIR(data, dbgfs->dir_drv); + DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv); DEBUGFS_ADD_FILE(eeprom, data); DEBUGFS_ADD_FILE(sram, data); DEBUGFS_ADD_FILE(stations, data); DEBUGFS_ADD_FILE(rx_statistics, data); DEBUGFS_ADD_FILE(tx_statistics, data); - +#ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB + DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); + DEBUGFS_ADD_BOOL(disable_chain_noise, rf, + &priv->disable_chain_noise_cal); +#endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ return 0; err: @@ -374,6 +386,11 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations); DEBUGFS_REMOVE(priv->dbgfs->dir_data); +#ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise); +#endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ + DEBUGFS_REMOVE(priv->dbgfs->dir_rf); DEBUGFS_REMOVE(priv->dbgfs->dir_drv); kfree(priv->dbgfs); priv->dbgfs = NULL; @@ -381,3 +398,4 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) EXPORT_SYMBOL(iwl_dbgfs_unregister); + diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index b1ff0afd828..820542bac44 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1212,9 +1212,13 @@ struct iwl_priv { #endif /* CONFIG_IWLWIFI_DEBUG */ struct work_struct txpower_work; +#ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB + u32 disable_sens_cal; + u32 disable_chain_noise_cal; +#endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ #ifdef CONFIG_IWL4965_RUN_TIME_CALIB struct work_struct sensitivity_work; -#endif +#endif /* CONFIG_IWL4965_RUN_TIME_CALIB */ struct timer_list statistics_periodic; }; /*iwl_priv */ -- cgit v1.2.3