#ifndef _DESCRIPTOR_MSC_H
#define	_DESCRIPTOR_MSC_H

/* MSC Subclass Codes */
#define MSC_SUBCLASS_RBC                0x01
#define MSC_SUBCLASS_SFF8020I_MMC2      0x02
#define MSC_SUBCLASS_QIC157             0x03
#define MSC_SUBCLASS_UFI                0x04
#define MSC_SUBCLASS_SFF8070I           0x05
#define MSC_SUBCLASS_SCSI               0x06

/* MSC Protocol Codes */
#define MSC_PROTOCOL_CBI_INT            0x00
#define MSC_PROTOCOL_CBI_NOINT          0x01
#define MSC_PROTOCOL_BULK_ONLY          0x50

/* MSC Request Codes */
#define MSC_REQUEST_RESET               0xFF
#define MSC_REQUEST_GET_MAX_LUN         0xFE

/* MSC Bulk-only Stage */
#define MSC_BS_CBW                      0       /* Command Block Wrapper */
#define MSC_BS_DATA_OUT                 1       /* Data Out Phase */
#define MSC_BS_DATA_IN                  2       /* Data In Phase */
#define MSC_BS_DATA_IN_LAST             3       /* Data In Last Phase */
#define MSC_BS_DATA_IN_LAST_STALL       4       /* Data In Last Phase with Stall */
#define MSC_BS_CSW                      5       /* Command Status Wrapper */
#define MSC_BS_ERROR                    6       /* Error */

/* Bulk-only Command Block Wrapper */
typedef struct __attribute__ ((packed)) {
	uint32_t dSignature;
	uint32_t dTag;
	uint32_t dDataLength;
	uint8_t  bmFlags;
	uint8_t  bLUN;
	uint8_t  bCBLength;
	uint8_t  CB[16];
} MSC_CBW;

/* Bulk-only Command Status Wrapper */
typedef struct __attribute__ ((packed)) {
	uint32_t dSignature;
	uint32_t dTag;
	uint32_t dDataResidue;
	uint8_t  bStatus;
} MSC_CSW;

#define MSC_CBW_Signature               0x43425355
#define MSC_CSW_Signature               0x53425355

/* CSW Status Definitions */
#define CSW_CMD_PASSED                  0x00
#define CSW_CMD_FAILED                  0x01
#define CSW_PHASE_ERROR                 0x02

/* SCSI Commands */
#define SCSI_TEST_UNIT_READY            0x00
#define SCSI_REQUEST_SENSE              0x03
#define SCSI_FORMAT_UNIT                0x04
#define SCSI_INQUIRY                    0x12
#define SCSI_MODE_SELECT6               0x15
#define SCSI_MODE_SENSE6                0x1A
#define SCSI_START_STOP_UNIT            0x1B
#define SCSI_MEDIA_REMOVAL              0x1E
#define SCSI_READ_FORMAT_CAPACITIES     0x23
#define SCSI_READ_CAPACITY              0x25
#define SCSI_READ10                     0x28
#define SCSI_WRITE10                    0x2A
#define SCSI_VERIFY10                   0x2F
#define SCSI_MODE_SELECT10              0x55
#define SCSI_MODE_SENSE10               0x5A

#endif /* _DESCRIPTOR_MSC_H */
