Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 04cafd7f authored by Wey-Yi Guy's avatar Wey-Yi Guy Committed by Reinette Chatre
Browse files

iwlwifi: add debug function to reset/reload radio/firmware 



Adding function to force reset radio or reload firmware from debugfs.

Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
parent a93e7973

drivers/net/wireless/iwlwifi/iwl-debugfs.c

+28 −0
Original line number Diff line number Diff line
@@ -2223,6 +2223,32 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file, 
	return count;

}



static ssize_t iwl_dbgfs_force_reset_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 reset, ret;



	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", &reset) != 1)

		return -EINVAL;

	switch (reset) {

	case IWL_RF_RESET:

	case IWL_FW_RESET:

		ret = iwl_force_reset(priv, reset);

		break;

	default:

		return -EINVAL;

	}

	return ret ? ret : count;

}



DEBUGFS_READ_FILE_OPS(rx_statistics);

DEBUGFS_READ_FILE_OPS(tx_statistics);

DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
@@ -2243,6 +2269,7 @@ DEBUGFS_READ_FILE_OPS(fh_reg); 
DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);

DEBUGFS_WRITE_FILE_OPS(internal_scan);

DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);

DEBUGFS_WRITE_FILE_OPS(force_reset);



/*

 * Create the debugfs files and directories
@@ -2296,6 +2323,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) 
	DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);

	DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR);

	DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);

	DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR);

	if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {

		DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);

		DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);