/*
* Intel(R) Enclosure LED Utilities
* Copyright (C) 2009-2017 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#ifndef _AHCI_H_INCLUDED_
#define _AHCI_H_INCLUDED_
#include "block.h"
#include "ibpi.h"
/**
* @brief Gets sysfs path to SATA port.
*
* The function returns a path to SATA port in sysfs tree the given block device
* is connected to.
*
* @param[in] path Path to block device in sysfs tree.
*
* @return Canonical path if successful, otherwise NULL pointer if an error occurred.
*/
char *ahci_get_port_path(const char *path);
/**
* @brief Sends LED control message using SGPIO.
*
* This function visualizes IBPI pattern on LEDs associated with a slot in
* drive bay. This function is designed to send messaged to AHCI controller
* only.
*
* @param[in] path Path in sysfs tree to slot in drive bay.
* @param[in] ibpi IBPI pattern to visualize on LEDs associated
* with the given slot.
*
* @return Number of bytes send to controller, -1 means error occurred and
* errno has additional error information.
*/
int ahci_sgpio_write(struct block_device *path, enum ibpi_pattern ibpi);
#endif /* _AHCI_H_INCLUDED_ */