143 lines
4.7 KiB
C
Executable file
143 lines
4.7 KiB
C
Executable file
/*
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* SCSI commands related definitions
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*/
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#ifndef _SCSI_H_
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#define _SCSI_H_
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#if 0
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#include <sys/endian.h> /* be16dec... */
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#else
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#define be16enc(base, val) { \
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(base)[0] = (((val) >> 8) & 0xff); \
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(base)[1] = ((val) & 0xff); \
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}
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#define be16dec(base) \
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(((base)[0] << 8) | (base)[1])
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#define be32enc(base, val) { \
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(base)[0] = (((val) >> 24) & 0xff); \
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(base)[1] = (((val) >> 16) & 0xff); \
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(base)[2] = (((val) >> 8) & 0xff); \
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(base)[3] = ((val) & 0xff); \
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}
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#define be32dec(base) \
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(((base)[0] << 24) | ((base)[1] << 16) | \
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((base)[2] << 8) | (base)[3])
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#endif
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#include "bulk.h"
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#define SCSI_FORMAT_UNIT (0x04)
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#define SCSI_INQUIRY (0x12)
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#define SCSI_START_STOP (0x1B)
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#define SCSI_MODE_SELECT (0x55)
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#define SCSI_MODE_SENSE (0x5A)
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#define SCSI_PREVENT_ALLOW (0x1E)
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#define SCSI_READ (0x28)
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#define SCSI_READ_12 (0xA8)
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#define SCSI_READ_CAPACITY (0x25)
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#define SCSI_READ_FORMAT_CAP (0x23)
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#define SCSI_REQUEST_SENSE (0x03)
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#define SCSI_REZERO_UNIT (0x01)
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#define SCSI_SEEK (0x2B)
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#define SCSI_SEND_DIAGNOSTIC (0x1D)
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#define SCSI_TEST_UNIT_READY (0x00)
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#define SCSI_VERIFY (0x2F)
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#define SCSI_WRITE (0x2A)
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#define SCSI_WRITE_12 (0xAA)
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#define SCSI_WRITE_VERIFY (0x2E)
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#define SCSI_INQUIRY_DATA_LEN (36)
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#define SCSI_INQUIRY_CMD_LEN (6)
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#define SCSI_MODE_SENSE_FLEX_DATA_LEN (32)
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#define SCSI_MODE_SENSE_CMD_LEN (12)
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#define SCSI_READ_DATA_LEN (0)
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#define SCSI_READ_CMD_LEN (10)
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#define SCSI_READ_CAPACITY_DATA_LEN (8)
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#define SCSI_READ_CAPACITY_CMD_LEN (10)
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#define SCSI_TEST_DATA_LEN (0)
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#define SCSI_TEST_CMD_LEN (6)
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#define SCSI_WRITE_DATA_LEN (0)
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#define SCSI_WRITE_CMD_LEN (10)
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/* These macros are immune to unaligned access
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* so they can be used on any address */
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/* 1 Byte SCSI operation */
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#define SCSI_WR1(base, offset, value)\
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(((uint8_t*)(base))[offset] = value)
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#define SCSI_RD1(base, offset)\
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(((uint8_t*)(base))[offset])
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#define SCSI_SET1(base, offset, value)\
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(((uint8_t*)(base))[offset] |= value)
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/* 2 Byte SCSI operation */
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#define SCSI_WR2(base, offset, value)\
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be16enc( &(((uint8_t*)(base))[offset]), value )
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#define SCSI_RD2(base, offset)\
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be16dec( &(((uint8_t*)(base))[offset]) )
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/* 4 Byte SCSI operation */
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#define SCSI_WR4(base, offset, value)\
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be32enc( &(((uint8_t*)(base))[offset]), value )
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#define SCSI_RD4(base, offset)\
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be32dec( &(((uint8_t*)(base))[offset]) )
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#define SCSI_SET_INQUIRY_OP_CODE(x) SCSI_WR1((x), 0, SCSI_INQUIRY)
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#define SCSI_SET_INQUIRY_EVPD(x) SCSI_SET1((x), 1, 0x01)
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#define SCSI_SET_INQUIRY_CMDDT(x) SCSI_SET1((x), 1, 0x02)
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#define SCSI_SET_INQUIRY_PAGE_CODE(x, code) SCSI_WR1((x), 2, code)
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#define SCSI_SET_INQUIRY_ALLOC_LEN(x, len) SCSI_WR1((x), 4, len)
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#define SCSI_GET_INQUIRY_PERIPH_QUALIF(x) ((SCSI_RD1(x, 0) >> 5) & 0x7)
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#define SCSI_GET_INQUIRY_VENDOR_NAME(x) ((const char *)(&((x)[8])))
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#define SCSI_INQUIRY_VENDOR_NAME_LEN (8)
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#define SCSI_GET_INQUIRY_PRODUCT_NAME(x) ((const char *)(&((x)[16])))
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#define SCSI_INQUIRY_PRODUCT_NAME_LEN (16)
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#define SCSI_MODE_SENSE_FLEXIBLE_DISK_PAGE (0x5)
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#define SCSI_SET_MODE_SENSE_OP_CODE(x) SCSI_WR1((x), 0, \
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SCSI_MODE_SENSE)
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#define SCSI_SET_MODE_SENSE_PAGE_CODE(x, code) SCSI_SET1((x), 2, \
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(code)&0x3F)
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#define SCSI_GET_MODE_SENSE_CYLINDERS(x) SCSI_RD2((x), 8)
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#define SCSI_GET_MODE_SENSE_HEADS(x) SCSI_RD1((x), 4)
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#define SCSI_GET_MODE_SENSE_SECTORS(x) SCSI_RD1((x), 5)
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#define SCSI_SET_READ_OP_CODE(x) SCSI_WR1((x), 0, SCSI_READ)
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#define SCSI_SET_READ_LBA(x, lba) SCSI_WR4((x), 2, (lba))
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#define SCSI_SET_READ_BLEN(x, len) SCSI_WR2((x), 7, (len))
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#define SCSI_SET_READ_CAPACITY_OP_CODE(x) SCSI_WR1((x), 0, \
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SCSI_READ_CAPACITY)
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#define SCSI_SET_READ_CAPACITY_LBA(x, lba) SCSI_WR4((x), 2, (lba))
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#define SCSI_SET_READ_CAPACITY_PMI(x) SCSI_SET1((x), 8, 0x01)
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#define SCSI_GET_READ_CAPACITY_LBA(x) SCSI_RD4((x), 0)
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#define SCSI_GET_READ_CAPACITY_BLEN(x) SCSI_RD4((x), 4)
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#define SCSI_SET_TEST_OP_CODE(x) SCSI_WR1((x), 0, \
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SCSI_TEST_UNIT_READY)
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#define SCSI_SET_WRITE_OP_CODE(x) SCSI_WR1((x), 0, SCSI_WRITE)
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#define SCSI_SET_WRITE_LBA(x, lba) SCSI_WR4((x), 2, (lba))
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#define SCSI_SET_WRITE_BLEN(x, len) SCSI_WR2((x), 7, (len))
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typedef struct scsi_transfer {
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unsigned int lba; /* logical block address */
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unsigned int length; /* transfer length */
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}
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scsi_transfer;
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/*---------------------------*
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* declared functions *
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*---------------------------*/
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int create_scsi_cmd(mass_storage_cbw *, int, struct scsi_transfer *);
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int check_inquiry_reply(uint8_t *);
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int check_read_capacity_reply(uint8_t *, uint32_t *, uint32_t *);
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int check_mode_sense_reply(uint8_t *, unsigned *, unsigned *, unsigned *);
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int check_csw(mass_storage_csw *, unsigned int);
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#endif /* !_SCSI_H_ */
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