iwlwifi: Thermal Throttling debugfs function
Add debugfs function to display current thermal throttling status for
both Legacy and Advance Thermal Throttling Management
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 0ab3463..748dc31 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -618,6 +618,41 @@
}
#endif
+static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+ struct iwl_tt_mgmt *tt = &priv->power_data.tt;
+ struct iwl_tt_restriction *restriction;
+ char buf[100];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+ ssize_t ret;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Thermal Throttling Mode: %s\n",
+ (priv->power_data.adv_tt)
+ ? "Advance" : "Legacy");
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Thermal Throttling State: %d\n",
+ tt->state);
+ if (priv->power_data.adv_tt) {
+ restriction = tt->restriction + tt->state;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Tx mode: %d\n",
+ restriction->tx_stream);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Rx mode: %d\n",
+ restriction->rx_stream);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "HT mode: %d\n",
+ restriction->is_ht);
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ return ret;
+}
+
DEBUGFS_READ_WRITE_FILE_OPS(sram);
DEBUGFS_WRITE_FILE_OPS(log_event);
DEBUGFS_READ_FILE_OPS(nvm);
@@ -631,6 +666,7 @@
#ifdef CONFIG_IWLWIFI_LEDS
DEBUGFS_READ_FILE_OPS(led);
#endif
+DEBUGFS_READ_FILE_OPS(thermal_throttling);
/*
* Create the debugfs files and directories
@@ -671,6 +707,7 @@
#ifdef CONFIG_IWLWIFI_LEDS
DEBUGFS_ADD_FILE(led, data);
#endif
+ DEBUGFS_ADD_FILE(thermal_throttling, data);
DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
&priv->disable_chain_noise_cal);
@@ -709,6 +746,7 @@
#ifdef CONFIG_IWLWIFI_LEDS
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led);
#endif
+ DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling);
DEBUGFS_REMOVE(priv->dbgfs->dir_data);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);