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