mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-08-24 10:03:27 +08:00
2002-10-28 Eugeny S. Mints <Eugeny.Mints@oktet.ru>
* Added ATA support. * include/rtems/blkdev.h: Added last IO status. * include/rtems/ata.h, include/rtems/ata_internal.h, include/rtems/ide_part_table.h, src/ata.c, src/ide_part_table.c: New files.
This commit is contained in:
Joel Sherrill
@@ -1,3 +1,11 @@
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2002-10-28 Eugeny S. Mints <Eugeny.Mints@oktet.ru>
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* Added ATA support.
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* include/rtems/blkdev.h: Added last IO status.
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* include/rtems/ata.h, include/rtems/ata_internal.h,
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include/rtems/ide_part_table.h, src/ata.c, src/ide_part_table.c: New
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files.
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2002-10-25 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
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* configure.ac: Add nostdinc to AM_INIT_AUTOMAKE.
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@@ -0,0 +1,55 @@
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/*
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* ata.h
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*
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* ATA RTEMS driver header file. This file should be included from an
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* application.
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*
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* Copyright (C) 2002 OKTET Ltd., St.-Petersburg, Russia
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* Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#ifndef __ATA_H__
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#define __ATA_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <rtems.h>
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#include <sys/ioctl.h>
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#include <rtems/blkdev.h>
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rtems_device_driver ata_initialize(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *args);
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#define ATA_DRIVER_TABLE_ENTRY \
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{ata_initialize, GENERIC_BLOCK_DEVICE_DRIVER_ENTRIES}
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/* ATA IOCTL request codes */
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#define ATAIO_SET_MULTIPLE_MODE _IO('A', 1)
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/*
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* ATA driver configuration parameters
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* FIXME: should be configured more easy...
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*/
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#define ATA_DRIVER_MESSAGE_QUEUE_SIZE 50
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#define ATA_DRIVER_TASK_PRIORITY 140
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#define ATA_DRIVER_TASK_STACK_SIZE 16*1024
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ATA_H__ */
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@@ -0,0 +1,328 @@
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/*
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* ata_internal.h
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*
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* ATA RTEMS driver internal header file
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*
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* Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
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* Authors: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
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* Alexandra Kossovsky <sasha@oktet.ru>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*
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*/
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#ifndef __ATA_INTERNAL_H__
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#define __ATA_INTERNAL_H__
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#include <rtems.h>
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#include <sys/types.h>
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#include <rtems/libio.h>
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#include <stdlib.h>
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#include <rtems/blkdev.h>
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#include <rtems/diskdevs.h>
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/*
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* Conversion from and to little-endian byte order. (no-op on i386/i486)
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*
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* Naming: Ca_b_c, where a: F = from, T = to, b: LE = little-endian,
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* BE = big-endian, c: W = word (16 bits), L = longword (32 bits)
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*/
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#if (CPU_BIG_ENDIAN == TRUE)
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# define CF_LE_W(v) CPU_swap_u16(v)
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# define CF_LE_L(v) CPU_swap_u32(v)
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# define CT_LE_W(v) CPU_swap_u16(v)
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# define CT_LE_L(v) CPU_swap_u32(v)
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#else
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# define CF_LE_W(v) (v)
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# define CF_LE_L(v) (v)
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# define CT_LE_W(v) (v)
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# define CT_LE_L(v) (v)
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#endif
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#define ATA_UNDEFINED_VALUE (-1)
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/* Sector size for all ATA devices */
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#define ATA_SECTOR_SIZE 512
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#define ATA_MAX_CMD_REG_OFFSET 8
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/* ATA modes */
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#define ATA_MODES_PIO3 0x001
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#define ATA_MODES_PIO4 0x002
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#define ATA_MODES_PIO 0x003
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#define ATA_MODES_DMA0 0x004
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#define ATA_MODES_DMA1 0x008
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#define ATA_MODES_DMA2 0x010
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#define ATA_MODES_UDMA0 0x020
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#define ATA_MODES_UDMA1 0x040
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#define ATA_MODES_UDMA2 0x080
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#define ATA_MODES_UDMA3 0x100
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#define ATA_MODES_UDMA4 0x200
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#define ATA_MODES_UDMA5 0x400
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#define ATA_MODES_UDMA 0x7e0
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#define ATA_MODES_DMA 0x7fc
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/* ATA Commands */
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/* Types of ATA commands */
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#define ATA_COMMAND_TYPE_NON_DATA 0
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#define ATA_COMMAND_TYPE_PIO_IN 1
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#define ATA_COMMAND_TYPE_PIO_OUT 2
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#define ATA_COMMAND_TYPE_DMA 3
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/* ATA commands opcodes */
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/*
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* Commands present in both ATA-2 and ATA-4 specs.
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* Some commands have two values in ATA-2,
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* in such case value from ATA-4 used.
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* Some commands have slightly different names in these specifications,
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* so names from ATA-4 are used.
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*/
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#define ATA_COMMAND_NOP 0x00
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#define ATA_COMMAND_READ_SECTORS 0x20
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#define ATA_COMMAND_WRITE_SECTORS 0x30
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#define ATA_COMMAND_READ_VERIFY_SECTORS 0x40
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#define ATA_COMMAND_SEEK 0x70 /* or 0x7. */
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#define ATA_COMMAND_EXECUTE_DEVICE_DIAGNOSTIC 0x90
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#define ATA_COMMAND_INITIALIZE_DEVICE_PARAMETERS 0x91
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#define ATA_COMMAND_DOWNLOAD_MICROCODE 0x92
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#define ATA_COMMAND_READ_MULTIPLE 0xc4
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#define ATA_COMMAND_WRITE_MULTIPLE 0xc5
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#define ATA_COMMAND_SET_MULTIPLE_MODE 0xc6
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#define ATA_COMMAND_READ_DMA 0xc8
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#define ATA_COMMAND_WRITE_DMA 0xca
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#define ATA_COMMAND_STANDBY_IMMEDIATE 0xe0 /* or 0x94 */
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#define ATA_COMMAND_IDLE_IMMEDIATE 0xe1 /* or 0x95 */
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#define ATA_COMMAND_STANDBY 0xe2 /* or 0x96 */
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#define ATA_COMMAND_IDLE 0xe3 /* or 0x97 */
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#define ATA_COMMAND_READ_BUFFER 0xe4
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#define ATA_COMMAND_CHECK_POWER_MODE 0xe5 /* or 0x98 in ATA-2 */
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#define ATA_COMMAND_SLEEP 0xe6 /* or 0x99 */
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#define ATA_COMMAND_WRITE_BUFFER 0xe8
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#define ATA_COMMAND_IDENTIFY_DEVICE 0xec
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#define ATA_COMMAND_SET_FEATURES 0xef
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/* Commands present in both ATA-2 and ATA-4 specs: removable media */
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#define ATA_COMMAND_MEDIA_LOCK 0xde
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#define ATA_COMMAND_MEDIA_UNLOCK 0xdf
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#define ATA_COMMAND_MEDIA_EJECT 0xed
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/* Commands present in ATA-2, but not in ATA-4 (not used) */
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#define ATA_COMMAND_RECALIBRATE 0x10 /* or 0x1. */
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#define ATA_COMMAND_READ_SECTOR_NON_RETRY 0x21
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#define ATA_COMMAND_READ_LONG_RETRY 0x22
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#define ATA_COMMAND_READ_LONG_NON_RETRY 0x23
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#define ATA_COMMAND_WRITE_SECTOR_NON_RETRY 0x31
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#define ATA_COMMAND_WRITE_LONG_RETRY 0x32
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#define ATA_COMMAND_WRITE_LONG_NON_RETRY 0x33
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#define ATA_COMMAND_WRITE_VERIFY 0x3c
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#define ATA_COMMAND_READ_VERIFY_SECTOR_NON_RETRY 0x41
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#define ATA_COMMAND_FORMAT_TRACK 0x50
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#define ATA_COMMAND_READ_DMA_NON_RETRY 0xc9
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#define ATA_COMMAND_WRITE_DMA_NON_RETRY 0xcb
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#define ATA_COMMAND_ACKNOWLEGE_MEDIA_CHANGE 0xdb
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#define ATA_COMMAND_BOOT_POST_BOOT 0xdc
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#define ATA_COMMAND_BOOT_PRE_BOOT 0xdd
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#define ATA_COMMAND_WRITE_SAME 0xe9
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/* Commands from ATA-4 specification: CFA feature set */
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#define ATA_COMMAND_CFA_REQUEST_EXTENDED_ERROR_CODE 0x03
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#define ATA_COMMAND_CFA_WRITE_SECTORS_WITHOUT_ERASE 0x38
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#define ATA_COMMAND_CFA_TRANSLATE_SECTOR 0x87
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#define ATA_COMMAND_CFA_ERASE_SECTORS 0xc0
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#define ATA_COMMAND_CFA_WRITE_MULTIPLE_WITHOUT_ERASE 0xcd
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/* Commands from ATA-4 specification: commands to use with PACKET command */
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#define ATA_COMMAND_DEVICE_RESET 0x08
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#define ATA_COMMAND_PACKET 0xa0
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#define ATA_COMMAND_IDENTIFY_PACKET_DEVICE 0xa1
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#define ATA_COMMAND_SERVICE 0xa2
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/* Commands from ATA-4 specification: SECURITY commands */
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#define ATA_COMMAND_SECURITY_SET_PASSWORD 0xf1
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#define ATA_COMMAND_SECURITY_UNLOCK 0xf2
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#define ATA_COMMAND_SECURITY_ERASE_PREPARE 0xf3
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#define ATA_COMMAND_SECURITY_ERASE_UNIT 0xf4
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#define ATA_COMMAND_SECURITY_FREEZE_LOCK 0xf5
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#define ATA_COMMAND_SECURITY_DISABLE_PASSWORD 0xf6
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/* Commands from ATA-4 specification: other commands */
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#define ATA_COMMAND_SMART 0xb0
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#define ATA_COMMAND_READ_DMA_QUEUED 0xc7
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#define ATA_COMMAND_WRITE_DMA_QUEUED 0xcc
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#define ATA_COMMAND_GET_MEDIA_STATUS 0xda
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#define ATA_COMMAND_FLUSH_CACHE 0xe7
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#define ATA_COMMAND_READ_NATIVE_MAX_ADDRESS 0xf8
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#define ATA_COMMAND_SET_MAX_ADDRESS 0xf9
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#define ATA_REGISTERS_VALUE(reg) (1 << (reg))
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/* ATA IDENTIFY DEVICE command words and bits */
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#define ATA_IDENT_WORD_RW_MULT 47
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#define ATA_IDENT_WORD_CAPABILITIES 49
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#define ATA_IDENT_WORD_FIELD_VALIDITY 53
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#define ATA_IDENT_WORD_NUM_OF_CURR_LOG_CLNDS 54
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#define ATA_IDENT_WORD_NUM_OF_CURR_LOG_HEADS 55
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#define ATA_IDENT_WORD_NUM_OF_CURR_LOG_SECS 56
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#define ATA_IDENT_WORD_MULT_SECS 59
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#define ATA_IDENT_WORD_NUM_OF_USR_SECS0 60
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#define ATA_IDENT_WORD_NUM_OF_USR_SECS1 61
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#define ATA_IDENT_WORD_PIO_SPPRTD 64
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#define ATA_IDENT_BIT_VALID 0x02
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/*
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* It is OR for all ATA_REGISTERS_VALUE(reg), where reg is neccessary
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* for setting block position
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*/
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#define ATA_REGISTERS_POSITION 0xfc
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#define ATA_MINOR_NUM_RESERVED_PER_ATA_DEVICE 64
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#define ATA_MAX_RTEMS_INT_VEC_NUMBER 255
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#define ATA_MAX_NAME_LENGTH 10
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|
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/* diagnostic codes */
|
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#define ATA_DEV0_PASSED_DEV1_PASSED_OR_NOT_PRSNT 0x01
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#define ATA_DEV0_PASSED_DEV1_FAILED 0x81
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#define ATA_DEV1_PASSED_DEV0_FAILED 0x80
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|
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/*
|
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* Obtain ata device parameters by controller minor number and device number
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*/
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#define ATA_DEV_INFO(controller_minor, dev) \
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ata_ide_ctrls[controller_minor].device[dev]
|
||||
|
||||
/* ATA RTEMS driver internal data stuctures */
|
||||
|
||||
/* Command block registers */
|
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typedef struct ata_registers_s {
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unsigned16 regs[8]; /* command block registers */
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unsigned16 to_read; /* mask: which ata registers should be read */
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unsigned16 to_write; /* mask: which ata registers should be written */
|
||||
} ata_registers_t;
|
||||
|
||||
/* ATA request */
|
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typedef struct ata_req_s {
|
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Chain_Node link; /* link in requests chain */
|
||||
char type; /* request type */
|
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ata_registers_t regs; /* ATA command */
|
||||
rtems_unsigned32 cnt; /* Number of sectors to be exchanged */
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||||
rtems_unsigned32 cbuf; /* number of current buffer from breq in use */
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||||
rtems_unsigned32 pos; /* current position in 'cbuf' */
|
||||
blkdev_request *breq; /* blkdev_request which corresponds to the
|
||||
* ata request
|
||||
*/
|
||||
rtems_id sema; /* semaphore which is used if synchronous
|
||||
* processing of the ata request is required
|
||||
*/
|
||||
rtems_status_code status; /* status of ata request processing */
|
||||
int error; /* device error code */
|
||||
} ata_req_t;
|
||||
|
||||
/* call callback provided by block device request if it is defined */
|
||||
#define ATA_EXEC_CALLBACK(areq, status, error) \
|
||||
do {\
|
||||
if (((areq)->breq != NULL) && ((areq)->breq->req_done != NULL)) \
|
||||
(areq)->breq->req_done((areq)->breq->done_arg, status, error); \
|
||||
} while (0)
|
||||
|
||||
/* ATA RTEMS driver events types */
|
||||
typedef enum ata_msg_type_s {
|
||||
ATA_MSG_GEN_EVT = 1, /* general event */
|
||||
ATA_MSG_SUCCESS_EVT, /* success event */
|
||||
ATA_MSG_ERROR_EVT, /* error event */
|
||||
ATA_MSG_PROCESS_NEXT_EVT /* process next request event */
|
||||
} ata_msg_type_t;
|
||||
|
||||
/* ATA RTEMS driver message */
|
||||
typedef struct ata_queue_msg_s {
|
||||
ata_msg_type_t type; /* message type */
|
||||
rtems_device_minor_number ctrl_minor; /* IDE controller minor number */
|
||||
int error; /* error code */
|
||||
} ata_queue_msg_t;
|
||||
|
||||
/* macros for messages processing */
|
||||
#define ATA_FILL_MSG(msg, evt_type, ctrl, err)\
|
||||
do {\
|
||||
msg.type = evt_type;\
|
||||
msg.ctrl_minor = ctrl;\
|
||||
msg.error = err;\
|
||||
} while (0)
|
||||
|
||||
#define ATA_SEND_EVT(msg, type, ctrl, err)\
|
||||
do {\
|
||||
rtems_status_code rc;\
|
||||
ATA_FILL_MSG(msg, type, ctrl, err);\
|
||||
rc = rtems_message_queue_send(ata_queue_id, &msg,\
|
||||
sizeof(ata_queue_msg_t));\
|
||||
if (rc != RTEMS_SUCCESSFUL)\
|
||||
rtems_fatal_error_occurred(RTEMS_INTERNAL_ERROR);\
|
||||
} while (0)
|
||||
|
||||
/*
|
||||
* Array of such structures is indexed by interrupt vecotrs and used for
|
||||
* mapping of IDE controllers and interrupt vectors
|
||||
*/
|
||||
typedef struct ata_int_st_s {
|
||||
Chain_Node link;
|
||||
rtems_device_minor_number ctrl_minor;
|
||||
} ata_int_st_t;
|
||||
|
||||
/*
|
||||
* Mapping of rtems ATA devices to the following pairs:
|
||||
* (IDE controller number served the device, device number on the controller)
|
||||
*/
|
||||
typedef struct ata_ide_dev_s {
|
||||
int ctrl_minor;/* minor number of IDE controller served rtems ATA device */
|
||||
int device; /* device number on IDE controller (0 or 1) */
|
||||
} ata_ide_dev_t;
|
||||
|
||||
/*
|
||||
* ATA device description
|
||||
*/
|
||||
typedef struct ata_dev_s {
|
||||
signed8 present; /* 1 -- present, 0 -- not present, */
|
||||
/* -1 -- non-initialized */
|
||||
unsigned16 cylinders;
|
||||
unsigned16 heads;
|
||||
unsigned16 sectors;
|
||||
unsigned32 lba_sectors; /* for small disk */
|
||||
/* == cylinders * heads * sectors */
|
||||
|
||||
unsigned8 lba_avaible; /* 0 - CHS mode, 1 - LBA mode */
|
||||
|
||||
unsigned8 max_multiple; /* 0 if READ/WRITE MULTIPLE is unsupported */
|
||||
unsigned8 current_multiple;
|
||||
|
||||
unsigned8 modes_avaible; /* OR of values for this modes */
|
||||
unsigned8 mode_active;
|
||||
} ata_dev_t;
|
||||
|
||||
/*
|
||||
* This structure describes controller state, devices configuration on the
|
||||
* controller and chain of ATA requests to the controller. Array of such
|
||||
* structures is indexed by controller minor number
|
||||
*/
|
||||
typedef struct ata_ide_ctrl_s {
|
||||
rtems_boolean present; /* controller state */
|
||||
ata_dev_t device[2]; /* ata diveces description */
|
||||
Chain_Control reqs; /* requests chain */
|
||||
} ata_ide_ctrl_t;
|
||||
|
||||
#endif /* __ATA_INTERNAL_H__ */
|
||||
|
||||
|
||||
@@ -62,6 +62,10 @@ typedef struct blkdev_request {
|
||||
blkdev_request_op req; /* Block device operation (read or write) */
|
||||
blkdev_request_cb req_done; /* Callback function */
|
||||
void *done_arg; /* Argument to be passed to callback function*/
|
||||
rtems_status_code status; /* Last I/O operation completion status */
|
||||
int error; /* If status != RTEMS_SUCCESSFUL, this field
|
||||
* contains error code
|
||||
*/
|
||||
blkdev_bnum start; /* Start block number */
|
||||
rtems_unsigned32 count; /* Number of blocks to be exchanged */
|
||||
rtems_unsigned32 bufnum; /* Number of buffers provided */
|
||||
|
||||
@@ -0,0 +1,186 @@
|
||||
/*****************************************************************************
|
||||
*
|
||||
* ide_part_table.h
|
||||
*
|
||||
* The header file for library supporting "MS-DOS-style" partition table
|
||||
*
|
||||
*
|
||||
* Copyright (C) 2002 OKTET Ltd., St.-Petersburg, Russia
|
||||
*
|
||||
* Author: Konstantin Abramenko <Konstantin.Abramenko@oktet.ru>
|
||||
* Alexander Kukuta <Alexander.Kukuta@oktet.ru>
|
||||
*
|
||||
* The license and distribution terms for this file may be
|
||||
* found in the file LICENSE in this distribution or at
|
||||
* http://www.OARcorp.com/rtems/license.html.
|
||||
*
|
||||
* $Id$
|
||||
*
|
||||
*****************************************************************************/
|
||||
|
||||
#ifndef __RTEMS_IDE_PART_TABLE_H__
|
||||
#define __RTEMS_IDE_PART_TABLE_H__
|
||||
|
||||
#include <assert.h>
|
||||
#include <chain.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
#include <rtems.h>
|
||||
#include <rtems/blkdev.h>
|
||||
#include <rtems/libio.h>
|
||||
#include <rtems/libio_.h>
|
||||
#include <rtems/bdbuf.h>
|
||||
#include <rtems/seterr.h>
|
||||
|
||||
/* Minor base number for all logical devices */
|
||||
#define RTEMS_IDE_SECTOR_BITS 9
|
||||
#define RTEMS_IDE_SECTOR_SIZE 512
|
||||
#define RTEMS_IDE_PARTITION_DESCRIPTOR_SIZE 16
|
||||
#define RTEMS_IDE_PARTITION_MAX_PARTITION_NUMBER 63
|
||||
#define RTEMS_IDE_PARTITION_MAX_SUB_PARTITION_NUMBER 4
|
||||
#define RTEMS_IDE_PARTITION_DEV_NAME_LENGTH_MAX 16
|
||||
|
||||
#define RTEMS_IDE_PARTITION_MSDOS_SIGNATURE_DATA1 0x55
|
||||
#define RTEMS_IDE_PARTITION_MSDOS_SIGNATURE_DATA2 0xaa
|
||||
#define RTEMS_IDE_PARTITION_MSDOS_SIGNATURE_OFFSET 0x1fe
|
||||
#define RTEMS_IDE_PARTITION_TABLE_OFFSET 0x1be
|
||||
#define RTEMS_IDE_PARTITION_BOOTABLE_OFFSET 0
|
||||
#define RTEMS_IDE_PARTITION_SYS_TYPE_OFFSET 4
|
||||
#define RTEMS_IDE_PARTITION_START_OFFSET 8
|
||||
#define RTEMS_IDE_PARTITION_SIZE_OFFSET 12
|
||||
|
||||
/*
|
||||
* Conversion from and to little-endian byte order. (no-op on i386/i486)
|
||||
*/
|
||||
|
||||
#if (CPU_BIG_ENDIAN == TRUE)
|
||||
# define LE_TO_CPU_U16(v) CPU_swap_u16(v)
|
||||
# define LE_TO_CPU_U32(v) CPU_swap_u32(v)
|
||||
# define CPU_TO_LE_U16(v) CPU_swap_u16(v)
|
||||
# define CPU_TO_LE_U32(v) CPU_swap_u32(v)
|
||||
#else
|
||||
# define LE_TO_CPU_U16(v) (v)
|
||||
# define LE_TO_CPU_U32(v) (v)
|
||||
# define CPU_TO_LE_U16(v) (v)
|
||||
# define CPU_TO_LE_U32(v) (v)
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* sector_data_t --
|
||||
* corresponds to the sector on the device
|
||||
*/
|
||||
typedef struct sector_data_s
|
||||
{
|
||||
unsigned32 sector_num; /* sector number on the device */
|
||||
unsigned8 data[0]; /* raw sector data */
|
||||
} sector_data_t;
|
||||
|
||||
|
||||
/*
|
||||
* Enum partition types
|
||||
*/
|
||||
enum {
|
||||
EMPTY_PARTITION = 0,
|
||||
EXTENDED_PARTITION = 5,
|
||||
DM6_PARTITION = 0x54,
|
||||
EZD_PARTITION = 0x55,
|
||||
DM6_AUX1PARTITION = 0x51,
|
||||
DM6_AUX3PARTITION = 0x53,
|
||||
LINUX_SWAP = 0x82,
|
||||
LINUX_NATIVE = 0x83,
|
||||
LINUX_EXTENDED = 0x85
|
||||
};
|
||||
|
||||
|
||||
/* Forward declaration */
|
||||
struct disk_desc_s;
|
||||
|
||||
/*
|
||||
* part_desc_t --
|
||||
* contains all neccessary information about partition
|
||||
*/
|
||||
typedef struct part_desc_s {
|
||||
unsigned8 bootable; /* is the partition active */
|
||||
unsigned8 sys_type; /* type of partition */
|
||||
unsigned8 log_id; /* logical number of partition */
|
||||
unsigned32 start; /* first partition sector, in absolute numeration */
|
||||
unsigned32 size; /* size in sectors */
|
||||
unsigned32 end; /* last partition sector, end = start + size - 1 */
|
||||
struct disk_desc_s *disk_desc; /* descriptor of disk, partition contains in */
|
||||
struct part_desc_s *ext_part; /* extended partition containing this one */
|
||||
|
||||
/* partitions, containing in this one */
|
||||
struct part_desc_s *sub_part[RTEMS_IDE_PARTITION_MAX_SUB_PARTITION_NUMBER];
|
||||
} part_desc_t;
|
||||
|
||||
|
||||
|
||||
typedef struct disk_desc_s {
|
||||
dev_t dev; /* device number */
|
||||
|
||||
/* device name in /dev filesystem */
|
||||
unsigned8 dev_name[RTEMS_IDE_PARTITION_DEV_NAME_LENGTH_MAX];
|
||||
|
||||
unsigned32 sector_size; /* size of sector */
|
||||
unsigned32 sector_bits; /* the base-2 logarithm of sector_size */
|
||||
unsigned32 lba_size; /* total amount of sectors in lba address mode */
|
||||
int last_log_id; /* used for logical disks enumerating */
|
||||
|
||||
/* primary partition descriptors */
|
||||
part_desc_t *partitions[RTEMS_IDE_PARTITION_MAX_PARTITION_NUMBER];
|
||||
} disk_desc_t;
|
||||
|
||||
|
||||
/*
|
||||
* rtems_ide_part_table_free --
|
||||
* frees disk descriptor structure
|
||||
*
|
||||
* PARAMETERS:
|
||||
* disk_desc - disc descriptor structure to free
|
||||
*
|
||||
* RETURNS:
|
||||
* N/A
|
||||
*/
|
||||
void
|
||||
rtems_ide_part_table_free(disk_desc_t *disk_desc);
|
||||
|
||||
|
||||
/*
|
||||
* rtems_ide_part_table_get --
|
||||
* reads partition table structure from the device
|
||||
* and creates disk description structure
|
||||
*
|
||||
* PARAMETERS:
|
||||
* dev_name - path to physical device in /dev filesystem
|
||||
* disk_desc - returned disc description structure
|
||||
*
|
||||
* RETURNS:
|
||||
* RTEMS_SUCCESSFUL if success, or -1 and corresponding errno else
|
||||
*/
|
||||
rtems_status_code
|
||||
rtems_ide_part_table_get(const char *dev_name, disk_desc_t *disk_desc);
|
||||
|
||||
|
||||
/*
|
||||
* rtems_ide_part_table_initialize --
|
||||
* initializes logical devices on the physical IDE drive
|
||||
*
|
||||
* PARAMETERS:
|
||||
* dev_name - path to physical device in /dev filesystem
|
||||
*
|
||||
* RETURNS:
|
||||
* RTEMS_SUCCESSFUL if success, or -1 and corresponding errno else
|
||||
*/
|
||||
rtems_status_code
|
||||
rtems_ide_part_table_initialize(char *dev_name);
|
||||
|
||||
|
||||
#endif /* __RTEMS_IDE_PART_TABLE_H__ */
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user