2011-12-08 21:23:53 +00:00
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Boris Gjenero
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __ATA_DRIVER_H__
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#define __ATA_DRIVER_H__
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#include "config.h" /* for HAVE_ATA_DMA */
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#include "ata-target.h" /* for other target-specific defines */
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/* Returns true if the interface hasn't been initialised yet */
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2011-12-09 02:07:24 +00:00
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bool ata_is_coldstart(void) STORAGE_INIT_ATTR;
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2011-12-08 21:23:53 +00:00
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/* Initializes the interface */
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2011-12-09 02:07:24 +00:00
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void ata_device_init(void) STORAGE_INIT_ATTR;
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2011-12-08 21:23:53 +00:00
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/* ata_enable(true) is used after ata_device_init() to enable the interface
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* ata_enable(false) is used to disable the interface so
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* an ATA to USB bridge chip can use it instead.*/
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void ata_enable(bool on);
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/* ATA hard reset: pulse the RESET pin */
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2011-12-09 02:07:24 +00:00
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#ifdef HAVE_ATA_POWER_OFF
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2011-12-08 21:23:53 +00:00
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void ata_reset(void);
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2011-12-09 02:07:24 +00:00
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#else
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void ata_reset(void) STORAGE_INIT_ATTR;
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#endif
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2011-12-08 21:23:53 +00:00
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/* Optional optimized target-specific PIO transfer */
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#ifdef ATA_OPTIMIZED_READING
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void copy_read_sectors(unsigned char* buf, int wordcount);
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#endif
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#ifdef ATA_OPTIMIZED_WRITING
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void copy_write_sectors(const unsigned char* buf, int wordcount);
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#endif
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/* Optional target-specific waiting */
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#ifdef ATA_TARGET_POLLING
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int ata_wait_for_bsy(void);
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int ata_wait_for_rdy(void);
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#endif
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/* Optional setting of controller timings for PIO mode */
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#ifdef ATA_SET_PIO_TIMING
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void ata_set_pio_timings(int mode);
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#endif
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#ifdef HAVE_ATA_DMA
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/* Used to update last disk activity time while waiting for DMA */
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void ata_keep_active(void);
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/* Set DMA mode for ATA interface */
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void ata_dma_set_mode(unsigned char mode);
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/* Sets up DMA transfer */
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bool ata_dma_setup(void *addr, unsigned long bytes, bool write);
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/* Waits for DMA transfer completion */
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bool ata_dma_finish(void);
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#endif /* HAVE_ATA_DMA */
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#endif /* __ATA_DRIVER_H__ */
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