74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/*
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*
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* Copyright (C) 2012 secunet Security Networks AG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _STORAGE_STORAGE_H
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#define _STORAGE_STORAGE_H
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#include <stdint.h>
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#include <unistd.h>
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#if !CONFIG(LP_STORAGE_64BIT_LBA)
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typedef u32 lba_t;
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#else
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typedef u64 lba_t;
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#endif
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typedef enum {
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PORT_TYPE_IDE = (1 << 0),
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PORT_TYPE_SATA = (1 << 1),
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PORT_TYPE_USB = (1 << 2),
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} storage_port_t;
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typedef enum {
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POLL_MEDIUM_ERROR = -3,
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POLL_NO_DEVICE = -2,
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POLL_ERROR = -1,
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POLL_NO_MEDIUM = 0,
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POLL_MEDIUM_PRESENT = 1,
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} storage_poll_t;
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struct storage_dev;
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typedef struct storage_dev {
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storage_port_t port_type;
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storage_poll_t (*poll)(struct storage_dev *);
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ssize_t (*read_blocks512)(struct storage_dev *, lba_t start, size_t count, unsigned char *buf);
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ssize_t (*write_blocks512)(struct storage_dev *, lba_t start, size_t count, const unsigned char *buf);
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void (*detach_device)(struct storage_dev *);
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} storage_dev_t;
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int storage_device_count(void);
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int storage_attach_device(storage_dev_t *dev);
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storage_poll_t storage_probe(size_t dev_num);
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ssize_t storage_read_blocks512(size_t dev_num, lba_t start, size_t count, unsigned char *buf);
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#endif
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