iwlwifi: Added debugfs calib disabled write

Added the option to disable calibration via debugfs.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 70c24f5955c899c07b734330e20b81cee6baa67e..c93f4e74d816501c18db7a16f11d895b2c22edd0 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -2499,6 +2499,27 @@ static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
        return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+static ssize_t iwl_dbgfs_calib_disabled_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];
+       u32 calib_disabled;
+       int buf_size;
+
+       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, "%x", &calib_disabled) != 1)
+               return -EFAULT;
+
+       priv->calib_disabled = calib_disabled;
+
+       return count;
+}
+
 DEBUGFS_READ_FILE_OPS(rx_statistics);
 DEBUGFS_READ_FILE_OPS(tx_statistics);
 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -2523,7 +2544,7 @@ DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
 DEBUGFS_READ_FILE_OPS(reply_tx_error);
 DEBUGFS_WRITE_FILE_OPS(echo_test);
 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
-DEBUGFS_READ_FILE_OPS(calib_disabled);
+DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
 
 /*
  * Create the debugfs files and directories
@@ -2592,7 +2613,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
                DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
 
        /* Calibrations disabled/enabled status*/
-       DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IRUSR);
+       DEBUGFS_ADD_FILE(calib_disabled, dir_rf, S_IWUSR | S_IRUSR);
 
        if (iwl_trans_dbgfs_register(priv->trans, dir_debug))
                goto err;