diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debugfs.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 748dc31877b..7707a265599 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -653,6 +653,49 @@ static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file, return ret; } +static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = file->private_data; + char buf[8]; + int buf_size; + int ht40; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &ht40) != 1) + return -EFAULT; + if (!iwl_is_associated(priv)) + priv->disable_ht40 = ht40 ? true : false; + else { + IWL_ERR(priv, "Sta associated with AP - " + "Change to 40MHz channel support is not allowed\n"); + return -EINVAL; + } + + return count; +} + +static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = (struct iwl_priv *)file->private_data; + char buf[100]; + int pos = 0; + const size_t bufsz = sizeof(buf); + ssize_t ret; + + pos += scnprintf(buf + pos, bufsz - pos, + "11n 40MHz Mode: %s\n", + priv->disable_ht40 ? "Disabled" : "Enabled"); + 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); @@ -667,6 +710,7 @@ DEBUGFS_READ_FILE_OPS(qos); DEBUGFS_READ_FILE_OPS(led); #endif DEBUGFS_READ_FILE_OPS(thermal_throttling); +DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); /* * Create the debugfs files and directories @@ -708,6 +752,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(led, data); #endif DEBUGFS_ADD_FILE(thermal_throttling, data); + DEBUGFS_ADD_FILE(disable_ht40, data); DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); DEBUGFS_ADD_BOOL(disable_chain_noise, rf, &priv->disable_chain_noise_cal); @@ -747,6 +792,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led); #endif DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_disable_ht40); 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); |