565 lines
19 KiB
C
565 lines
19 KiB
C
/****************************************************************************
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* Perceptive Solutions, Inc. PCI-2220I device driver for Linux.
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*
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* psi_dalei.h - Linux Host Driver for PCI-2220i EIDE Adapters
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*
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* Copyright (c) 1997-1999 Perceptive Solutions, Inc.
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* All Rights Reserved.
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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 redistributions of source
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* code retain the above copyright notice and this comment without
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* modification.
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*
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* Technical updates and product information at:
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* http://www.psidisk.com
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*
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* Please send questions, comments, bug reports to:
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* tech@psidisk.com Technical Support
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*
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****************************************************************************/
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/************************************************/
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/* Some defines that we like */
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/************************************************/
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#define CHAR char
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#define UCHAR unsigned char
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#define SHORT short
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#define USHORT unsigned short
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#define BOOL unsigned short
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#define LONG long
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#define ULONG unsigned long
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#define VOID void
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/************************************************/
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/* Dale PCI setup */
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/************************************************/
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#define VENDOR_PSI 0x1256
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#define DEVICE_DALE_1 0x4401 /* 'D1' */
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#define DEVICE_BIGD_1 0x4201 /* 'B1' */
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#define DEVICE_BIGD_2 0x4202 /* 'B2' */
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/************************************************/
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/* Misc konstants */
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/************************************************/
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#define DALE_MAXDRIVES 4
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#define BIGD_MAXDRIVES 8
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#define SECTORSXFER 8
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#define ATAPI_TRANSFER 8192
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#define BYTES_PER_SECTOR 512
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#define DEFAULT_TIMING_MODE 5
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/************************************************/
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/* EEPROM locations */
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/************************************************/
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#define DALE_FLASH_PAGE_SIZE 128 // number of bytes per page
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#define DALE_FLASH_SIZE 65536L
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#define DALE_FLASH_BIOS 0x00080000L // BIOS base address
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#define DALE_FLASH_SETUP 0x00088000L // SETUP PROGRAM base address offset from BIOS
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#define DALE_FLASH_RAID 0x00088400L // RAID signature storage
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#define DALE_FLASH_FACTORY 0x00089000L // FACTORY data base address offset from BIOS
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#define DALE_FLASH_BIOS_SIZE 32768U // size of FLASH BIOS REGION
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/************************************************/
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/* DALE Register address offsets */
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/************************************************/
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#define REG_DATA 0x80
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#define REG_ERROR 0x84
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#define REG_SECTOR_COUNT 0x88
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#define REG_LBA_0 0x8C
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#define REG_LBA_8 0x90
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#define REG_LBA_16 0x94
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#define REG_LBA_24 0x98
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#define REG_STAT_CMD 0x9C
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#define REG_STAT_SEL 0xA0
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#define REG_FAIL 0xB0
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#define REG_ALT_STAT 0xB8
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#define REG_DRIVE_ADRS 0xBC
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#define DALE_DATA_SLOW 0x00040000L
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#define DALE_DATA_MODE2 0x00040000L
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#define DALE_DATA_MODE3 0x00050000L
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#define DALE_DATA_MODE4 0x00060000L
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#define DALE_DATA_MODE5 0x00070000L
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#define BIGD_DATA_SLOW 0x00000000L
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#define BIGD_DATA_MODE0 0x00000000L
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#define BIGD_DATA_MODE2 0x00000000L
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#define BIGD_DATA_MODE3 0x00000008L
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#define BIGD_DATA_MODE4 0x00000010L
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#define BIGD_DATA_MODE5 0x00000020L
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#define RTR_LOCAL_RANGE 0x000
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#define RTR_LOCAL_REMAP 0x004
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#define RTR_EXP_RANGE 0x010
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#define RTR_EXP_REMAP 0x014
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#define RTR_REGIONS 0x018
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#define RTR_DM_MASK 0x01C
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#define RTR_DM_LOCAL_BASE 0x020
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#define RTR_DM_IO_BASE 0x024
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#define RTR_DM_PCI_REMAP 0x028
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#define RTR_DM_IO_CONFIG 0x02C
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#define RTR_MAILBOX 0x040
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#define RTR_LOCAL_DOORBELL 0x060
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#define RTR_PCI_DOORBELL 0x064
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#define RTR_INT_CONTROL_STATUS 0x068
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#define RTR_EEPROM_CONTROL_STATUS 0x06C
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#define RTR_DMA0_MODE 0x0080
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#define RTR_DMA0_PCI_ADDR 0x0084
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#define RTR_DMA0_LOCAL_ADDR 0x0088
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#define RTR_DMA0_COUNT 0x008C
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#define RTR_DMA0_DESC_PTR 0x0090
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#define RTR_DMA1_MODE 0x0094
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#define RTR_DMA1_PCI_ADDR 0x0098
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#define RTR_DMA1_LOCAL_ADDR 0x009C
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#define RTR_DMA1_COUNT 0x00A0
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#define RTR_DMA1_DESC_PTR 0x00A4
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#define RTR_DMA_COMMAND_STATUS 0x00A8
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#define RTR_DMA_ARB0 0x00AC
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#define RTR_DMA_ARB1 0x00B0
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#define RTL_DMA0_MODE 0x00
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#define RTL_DMA0_PCI_ADDR 0x04
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#define RTL_DMA0_LOCAL_ADDR 0x08
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#define RTL_DMA0_COUNT 0x0C
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#define RTL_DMA0_DESC_PTR 0x10
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#define RTL_DMA1_MODE 0x14
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#define RTL_DMA1_PCI_ADDR 0x18
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#define RTL_DMA1_LOCAL_ADDR 0x1C
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#define RTL_DMA1_COUNT 0x20
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#define RTL_DMA1_DESC_PTR 0x24
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#define RTL_DMA_COMMAND_STATUS 0x28
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#define RTL_DMA_ARB0 0x2C
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#define RTL_DMA_ARB1 0x30
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/************************************************/
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/* Dale Scratchpad locations */
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/************************************************/
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#define DALE_CHANNEL_DEVICE_0 0 // device channel locations
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#define DALE_CHANNEL_DEVICE_1 1
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#define DALE_CHANNEL_DEVICE_2 2
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#define DALE_CHANNEL_DEVICE_3 3
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#define DALE_SCRATCH_DEVICE_0 4 // device type codes
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#define DALE_SCRATCH_DEVICE_1 5
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#define DALE_SCRATCH_DEVICE_2 6
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#define DALE_SCRATCH_DEVICE_3 7
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#define DALE_RAID_0_STATUS 8
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#define DALE_RAID_1_STATUS 9
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#define DALE_TIMING_MODE 12 // bus master timing mode (2, 3, 4, 5)
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#define DALE_NUM_DRIVES 13 // number of addressable drives on this board
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#define DALE_RAID_ON 14 // RAID status On
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#define DALE_LAST_ERROR 15 // Last error code from BIOS
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/************************************************/
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/* BigD Scratchpad locations */
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/************************************************/
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#define BIGD_DEVICE_0 0 // device channel locations
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#define BIGD_DEVICE_1 1
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#define BIGD_DEVICE_2 2
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#define BIGD_DEVICE_3 3
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#define BIGD_DEVICE_4 4 // device type codes
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#define BIGD_DEVICE_5 5
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#define BIGD_DEVICE_6 6
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#define BIGD_DEVICE_7 7
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#define BIGD_ALARM_IMAGE 11 // ~image of alarm fail register
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#define BIGD_TIMING_MODE 12 // bus master timing mode (2, 3, 4, 5)
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#define BIGD_NUM_DRIVES 13 // number of addressable drives on this board
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#define BIGD_RAID_ON 14 // RAID status is on for the whole board
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#define BIGD_LAST_ERROR 15 // Last error code from BIOS
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#define BIGD_RAID_0_STATUS 16
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#define BIGD_RAID_1_STATUS 17
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#define BIGD_RAID_2_STATUS 18
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#define BIGD_RAID_3_STATUS 19
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#define BIGD_RAID_4_STATUS 20
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#define BIGD_RAID_5_STATUS 21
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#define BIGD_RAID_6_STATUS 22
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#define BIGD_RAID_7_STATUS 23
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/************************************************/
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/* Dale cable select bits */
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/************************************************/
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#define SEL_NONE 0x00
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#define SEL_1 0x01
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#define SEL_2 0x02
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#define SEL_3 0x04
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#define SEL_4 0x08
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#define SEL_NEW_SPEED_1 0x20
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#define SEL_COPY 0x40
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#define SEL_IRQ_OFF 0x80
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/************************************************/
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/* Device/Geometry controls */
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/************************************************/
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#define GEOMETRY_NONE 0x0 // No device
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#define GEOMETRY_SET 0x1 // Geometry set
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#define GEOMETRY_LBA 0x2 // Geometry set in default LBA mode
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#define GEOMETRY_PHOENIX 0x3 // Geometry set in Pheonix BIOS compatibility mode
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#define DEVICE_NONE 0x0 // No device present
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#define DEVICE_INACTIVE 0x1 // device present but not registered active
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#define DEVICE_ATAPI 0x2 // ATAPI device (CD_ROM, Tape, Etc...)
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#define DEVICE_DASD_NONLBA 0x3 // Non LBA incompatible device
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#define DEVICE_DASD_LBA 0x4 // LBA compatible device
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/************************************************/
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/* BigD fail register bits */
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/************************************************/
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#define FAIL_NONE 0x00
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#define FAIL_0 0x01
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#define FAIL_1 0x02
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#define FAIL_2 0x04
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#define FAIL_MULTIPLE 0x08
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#define FAIL_GOOD 0x20
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#define FAIL_AUDIBLE 0x40
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#define FAIL_ANY 0x80
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/************************************************/
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/* Setup Structure Definitions */
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/************************************************/
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typedef struct // device setup parameters
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{
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UCHAR geometryControl; // geometry control flags
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UCHAR device; // device code
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USHORT sectors; // number of sectors per track
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USHORT heads; // number of heads
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USHORT cylinders; // number of cylinders for this device
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ULONG blocks; // number of blocks on device
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ULONG realCapacity; // number of real blocks on this device for drive changed testing
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} SETUP_DEVICE, *PSETUP_DEVICE;
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typedef struct // master setup structure
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{
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USHORT startupDelay;
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BOOL promptBIOS;
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BOOL fastFormat;
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BOOL shareInterrupt;
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BOOL rebootRebuild;
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USHORT timingMode;
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USHORT spare5;
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USHORT spare6;
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SETUP_DEVICE setupDevice[BIGD_MAXDRIVES];
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} SETUP, *PSETUP;
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/************************************************/
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/* RAID Structure Definitions */
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/************************************************/
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typedef struct
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{
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UCHAR signature; // 0x55 our mirror signature
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UCHAR status; // current status bits
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UCHAR pairIdentifier; // unique identifier for pair
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ULONG reconstructPoint; // recontruction point for hot reconstruct
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} DISK_MIRROR;
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typedef struct DEVICE_RAID1
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{
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long TotalSectors;
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DISK_MIRROR DiskRaid1;
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} DEVICE_RAID1, *PDEVICE_RAID1;
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#define DISK_MIRROR_POSITION 0x01A8
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#define SIGNATURE 0x55
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#define MASK_SERIAL_NUMBER 0x0FFE // mask for serial number matching
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#define MASK_SERIAL_UNIT 0x0001 // mask for unit portion of serial number
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// Status bits
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#define UCBF_MIRRORED 0x0010 // drive has a pair
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#define UCBF_MATCHED 0x0020 // drive pair is matched
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#define UCBF_SURVIVOR 0x0040 // this unit is a survivor of a pair
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#define UCBF_REBUILD 0x0080 // rebuild in progress on this device
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// SCSI controls for RAID
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#define SC_MY_RAID 0xBF // our special CDB command byte for Win95... interface
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#define MY_SCSI_QUERY1 0x32 // byte 1 subcommand to query driver for RAID 1 informatation
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#define MY_SCSI_REBUILD 0x40 // byte 1 subcommand to reconstruct a mirrored pair
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#define MY_SCSI_DEMOFAIL 0x54 // byte 1 subcommand for RAID failure demonstration
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#define MY_SCSI_ALARMMUTE 0x60 // byte 1 subcommand to mute any alarm currently on
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/************************************************/
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/* Timeout konstants */
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/************************************************/
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#define TIMEOUT_READY 100 // 100 mSec
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#define TIMEOUT_DRQ 300 // 300 mSec
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#define TIMEOUT_DATA (3 * HZ) // 3 seconds
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/************************************************/
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/* Misc. macros */
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/************************************************/
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#define ANY2SCSI(up, p) \
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((UCHAR *)up)[0] = (((ULONG)(p)) >> 8); \
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((UCHAR *)up)[1] = ((ULONG)(p));
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#define SCSI2LONG(up) \
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( (((long)*(((UCHAR *)up))) << 16) \
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+ (((long)(((UCHAR *)up)[1])) << 8) \
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+ ((long)(((UCHAR *)up)[2])) )
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#define XANY2SCSI(up, p) \
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((UCHAR *)up)[0] = ((long)(p)) >> 24; \
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((UCHAR *)up)[1] = ((long)(p)) >> 16; \
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((UCHAR *)up)[2] = ((long)(p)) >> 8; \
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((UCHAR *)up)[3] = ((long)(p));
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#define XSCSI2LONG(up) \
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( (((long)(((UCHAR *)up)[0])) << 24) \
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+ (((long)(((UCHAR *)up)[1])) << 16) \
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+ (((long)(((UCHAR *)up)[2])) << 8) \
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+ ((long)(((UCHAR *)up)[3])) )
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#define SelectSpigot(padapter,spigot) outb_p (spigot, padapter->regStatSel)
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#define WriteCommand(padapter,cmd) outb_p (cmd, padapter->regStatCmd)
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#define AtapiDevice(padapter,b) outb_p (b, padapter->regLba24);
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#define AtapiCountLo(padapter,b) outb_p (b, padapter->regLba8)
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#define AtapiCountHi(padapter,b) outb_p (b, padapter->regLba16)
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/************************************************/
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/* SCSI CDB operation codes */
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/************************************************/
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#define SCSIOP_TEST_UNIT_READY 0x00
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#define SCSIOP_REZERO_UNIT 0x01
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#define SCSIOP_REWIND 0x01
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#define SCSIOP_REQUEST_BLOCK_ADDR 0x02
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#define SCSIOP_REQUEST_SENSE 0x03
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#define SCSIOP_FORMAT_UNIT 0x04
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#define SCSIOP_READ_BLOCK_LIMITS 0x05
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#define SCSIOP_REASSIGN_BLOCKS 0x07
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#define SCSIOP_READ6 0x08
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#define SCSIOP_RECEIVE 0x08
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#define SCSIOP_WRITE6 0x0A
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#define SCSIOP_PRINT 0x0A
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#define SCSIOP_SEND 0x0A
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#define SCSIOP_SEEK6 0x0B
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#define SCSIOP_TRACK_SELECT 0x0B
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#define SCSIOP_SLEW_PRINT 0x0B
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#define SCSIOP_SEEK_BLOCK 0x0C
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#define SCSIOP_PARTITION 0x0D
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#define SCSIOP_READ_REVERSE 0x0F
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#define SCSIOP_WRITE_FILEMARKS 0x10
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#define SCSIOP_FLUSH_BUFFER 0x10
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#define SCSIOP_SPACE 0x11
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#define SCSIOP_INQUIRY 0x12
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#define SCSIOP_VERIFY6 0x13
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#define SCSIOP_RECOVER_BUF_DATA 0x14
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#define SCSIOP_MODE_SELECT 0x15
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#define SCSIOP_RESERVE_UNIT 0x16
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#define SCSIOP_RELEASE_UNIT 0x17
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#define SCSIOP_COPY 0x18
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#define SCSIOP_ERASE 0x19
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#define SCSIOP_MODE_SENSE 0x1A
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#define SCSIOP_START_STOP_UNIT 0x1B
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#define SCSIOP_STOP_PRINT 0x1B
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#define SCSIOP_LOAD_UNLOAD 0x1B
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#define SCSIOP_RECEIVE_DIAGNOSTIC 0x1C
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#define SCSIOP_SEND_DIAGNOSTIC 0x1D
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#define SCSIOP_MEDIUM_REMOVAL 0x1E
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#define SCSIOP_READ_CAPACITY 0x25
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#define SCSIOP_READ 0x28
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#define SCSIOP_WRITE 0x2A
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#define SCSIOP_SEEK 0x2B
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#define SCSIOP_LOCATE 0x2B
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#define SCSIOP_WRITE_VERIFY 0x2E
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#define SCSIOP_VERIFY 0x2F
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#define SCSIOP_SEARCH_DATA_HIGH 0x30
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#define SCSIOP_SEARCH_DATA_EQUAL 0x31
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#define SCSIOP_SEARCH_DATA_LOW 0x32
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#define SCSIOP_SET_LIMITS 0x33
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#define SCSIOP_READ_POSITION 0x34
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#define SCSIOP_SYNCHRONIZE_CACHE 0x35
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#define SCSIOP_COMPARE 0x39
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#define SCSIOP_COPY_COMPARE 0x3A
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#define SCSIOP_WRITE_DATA_BUFF 0x3B
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#define SCSIOP_READ_DATA_BUFF 0x3C
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#define SCSIOP_CHANGE_DEFINITION 0x40
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#define SCSIOP_READ_SUB_CHANNEL 0x42
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#define SCSIOP_READ_TOC 0x43
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#define SCSIOP_READ_HEADER 0x44
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#define SCSIOP_PLAY_AUDIO 0x45
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#define SCSIOP_PLAY_AUDIO_MSF 0x47
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#define SCSIOP_PLAY_TRACK_INDEX 0x48
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#define SCSIOP_PLAY_TRACK_RELATIVE 0x49
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#define SCSIOP_PAUSE_RESUME 0x4B
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#define SCSIOP_LOG_SELECT 0x4C
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#define SCSIOP_LOG_SENSE 0x4D
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#define SCSIOP_MODE_SELECT10 0x55
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#define SCSIOP_MODE_SENSE10 0x5A
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#define SCSIOP_LOAD_UNLOAD_SLOT 0xA6
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#define SCSIOP_MECHANISM_STATUS 0xBD
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#define SCSIOP_READ_CD 0xBE
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// IDE command definitions
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#define IDE_COMMAND_ATAPI_RESET 0x08
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#define IDE_COMMAND_READ 0x20
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#define IDE_COMMAND_WRITE 0x30
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#define IDE_COMMAND_RECALIBRATE 0x10
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#define IDE_COMMAND_SEEK 0x70
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#define IDE_COMMAND_SET_PARAMETERS 0x91
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#define IDE_COMMAND_VERIFY 0x40
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#define IDE_COMMAND_ATAPI_PACKET 0xA0
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#define IDE_COMMAND_ATAPI_IDENTIFY 0xA1
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#define IDE_CMD_READ_MULTIPLE 0xC4
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#define IDE_CMD_WRITE_MULTIPLE 0xC5
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#define IDE_CMD_SET_MULTIPLE 0xC6
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#define IDE_COMMAND_IDENTIFY 0xEC
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// IDE status definitions
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#define IDE_STATUS_ERROR 0x01
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#define IDE_STATUS_INDEX 0x02
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#define IDE_STATUS_CORRECTED_ERROR 0x04
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#define IDE_STATUS_DRQ 0x08
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#define IDE_STATUS_DSC 0x10
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#define IDE_STATUS_WRITE_FAULT 0x20
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#define IDE_STATUS_DRDY 0x40
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#define IDE_STATUS_BUSY 0x80
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typedef struct _ATAPI_STATUS
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{
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CHAR check :1;
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CHAR reserved1 :1;
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CHAR corr :1;
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CHAR drq :1;
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CHAR dsc :1;
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CHAR reserved2 :1;
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CHAR drdy :1;
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CHAR bsy :1;
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} ATAPI_STATUS;
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typedef struct _ATAPI_REASON
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{
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CHAR cod :1;
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CHAR io :1;
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CHAR reserved1 :6;
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} ATAPI_REASON;
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typedef struct _ATAPI_ERROR
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{
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CHAR ili :1;
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CHAR eom :1;
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CHAR abort :1;
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CHAR mcr :1;
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CHAR senseKey :4;
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} ATAPI_ERROR;
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// IDE error definitions
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#define IDE_ERROR_AMNF 0x01
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|
#define IDE_ERROR_TKONF 0x02
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|
#define IDE_ERROR_ABRT 0x04
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|
#define IDE_ERROR_MCR 0x08
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|
#define IDE_ERROR_IDFN 0x10
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#define IDE_ERROR_MC 0x20
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#define IDE_ERROR_UNC 0x40
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#define IDE_ERROR_BBK 0x80
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|
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// SCSI read capacity structure
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|
typedef struct _READ_CAPACITY_DATA
|
|
{
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|
ULONG blks; /* total blocks (converted to little endian) */
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|
ULONG blksiz; /* size of each (converted to little endian) */
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} READ_CAPACITY_DATA, *PREAD_CAPACITY_DATA;
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|
|
|
// SCSI inquiry data
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|
typedef struct _INQUIRYDATA
|
|
{
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|
UCHAR DeviceType :5;
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|
UCHAR DeviceTypeQualifier :3;
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|
UCHAR DeviceTypeModifier :7;
|
|
UCHAR RemovableMedia :1;
|
|
UCHAR Versions;
|
|
UCHAR ResponseDataFormat;
|
|
UCHAR AdditionalLength;
|
|
UCHAR Reserved[2];
|
|
UCHAR SoftReset :1;
|
|
UCHAR CommandQueue :1;
|
|
UCHAR Reserved2 :1;
|
|
UCHAR LinkedCommands :1;
|
|
UCHAR Synchronous :1;
|
|
UCHAR Wide16Bit :1;
|
|
UCHAR Wide32Bit :1;
|
|
UCHAR RelativeAddressing :1;
|
|
UCHAR VendorId[8];
|
|
UCHAR ProductId[16];
|
|
UCHAR ProductRevisionLevel[4];
|
|
UCHAR VendorSpecific[20];
|
|
UCHAR Reserved3[40];
|
|
} INQUIRYDATA, *PINQUIRYDATA;
|
|
|
|
// IDE IDENTIFY data
|
|
#pragma pack (1)
|
|
typedef struct _IDENTIFY_DATA
|
|
{
|
|
USHORT GeneralConfiguration; // 0
|
|
USHORT NumberOfCylinders; // 1
|
|
USHORT Reserved1; // 2
|
|
USHORT NumberOfHeads; // 3
|
|
USHORT UnformattedBytesPerTrack; // 4
|
|
USHORT UnformattedBytesPerSector; // 5
|
|
USHORT SectorsPerTrack; // 6
|
|
USHORT NumBytesISG; // 7 Byte Len - inter-sector gap
|
|
USHORT NumBytesSync; // 8 - sync field
|
|
USHORT NumWordsVUS; // 9 Len - Vendor Unique Info
|
|
USHORT SerialNumber[10]; // 10
|
|
USHORT BufferType; // 20
|
|
USHORT BufferSectorSize; // 21
|
|
USHORT NumberOfEccBytes; // 22
|
|
USHORT FirmwareRevision[4]; // 23
|
|
USHORT ModelNumber[20]; // 27
|
|
USHORT NumSectorsPerInt :8; // 47 Multiple Mode - Sec/Blk
|
|
USHORT Reserved2 :8; // 47
|
|
USHORT DoubleWordMode; // 48 flag for double word mode capable
|
|
USHORT VendorUnique1 :8; // 49
|
|
USHORT SupportDMA :1; // 49 DMA supported
|
|
USHORT SupportLBA :1; // 49 LBA supported
|
|
USHORT SupportIORDYDisable :1; // 49 IORDY can be disabled
|
|
USHORT SupportIORDY :1; // 49 IORDY supported
|
|
USHORT ReservedPsuedoDMA :1; // 49 reserved for pseudo DMA mode support
|
|
USHORT Reserved3 :3; // 49
|
|
USHORT Reserved4; // 50
|
|
USHORT Reserved5 :8; // 51 Transfer Cycle Timing - PIO
|
|
USHORT PIOCycleTime :8; // 51 Transfer Cycle Timing - PIO
|
|
USHORT Reserved6 :8; // 52 - DMA
|
|
USHORT DMACycleTime :8; // 52 - DMA
|
|
USHORT Valid_54_58 :1; // 53 words 54 - 58 are valid
|
|
USHORT Valid_64_70 :1; // 53 words 64 - 70 are valid
|
|
USHORT Reserved7 :14; // 53
|
|
USHORT LogNumCyl; // 54 Current Translation - Num Cyl
|
|
USHORT LogNumHeads; // 55 Num Heads
|
|
USHORT LogSectorsPerTrack; // 56 Sec/Trk
|
|
ULONG LogTotalSectors; // 57 Total Sec
|
|
USHORT CurrentNumSecPerInt :8; // 59 current setting for number of sectors per interrupt
|
|
USHORT ValidNumSecPerInt :1; // 59 Current setting is valid for number of sectors per interrupt
|
|
USHORT Reserved8 :7; // 59
|
|
ULONG LBATotalSectors; // 60 LBA Mode - Sectors
|
|
USHORT DMASWordFlags; // 62
|
|
USHORT DMAMWordFlags; // 63
|
|
USHORT AdvancedPIOSupport :8; // 64 Flow control PIO transfer modes supported
|
|
USHORT Reserved9 :8; // 64
|
|
USHORT MinMultiDMACycle; // 65 minimum multiword DMA transfer cycle time per word
|
|
USHORT RecomendDMACycle; // 66 Manufacturer's recommende multiword DMA transfer cycle time
|
|
USHORT MinPIOCycleWithoutFlow; // 67 Minimum PIO transfer cycle time without flow control
|
|
USHORT MinPIOCylceWithFlow; // 68 Minimum PIO transfer cycle time with IORDY flow control
|
|
USHORT ReservedSpace[256-69]; // 69
|
|
} IDENTIFY_DATA, *PIDENTIFY_DATA;
|
|
|
|
// ATAPI configuration bits
|
|
typedef struct _ATAPI_GENERAL_0
|
|
{
|
|
USHORT CmdPacketSize :2; // Command packet size
|
|
USHORT Reserved1 :3;
|
|
USHORT CmdDrqType :2;
|
|
USHORT Removable :1;
|
|
USHORT DeviceType :5;
|
|
USHORT Reserved2 :1;
|
|
USHORT ProtocolType :2;
|
|
} ATAPI_GENERAL_0;
|
|
|
|
#pragma pack ()
|