/*
 * This file is in the public domain.
 * $FreeBSD: src/sys/cam/scsi/scsi_message.h,v 1.1.6.4 2002/08/30 17:18:06 gibbs Exp $
 * $DragonFly: src/sys/bus/cam/scsi/scsi_message.h,v 1.2 2003/06/17 04:28:19 dillon Exp $
 */

/* Messages (1 byte) */              /* I/T (M)andatory or (O)ptional */
#define MSG_CMDCOMPLETE         0x00 /* M/M */
#define MSG_TASK_COMPLETE       0x00 /* M/M */ /* SPI3 Terminology */
#define MSG_EXTENDED            0x01 /* O/O */
#define MSG_SAVEDATAPOINTER     0x02 /* O/O */
#define MSG_RESTOREPOINTERS     0x03 /* O/O */
#define MSG_DISCONNECT          0x04 /* O/O */
#define MSG_INITIATOR_DET_ERR   0x05 /* M/M */
#define MSG_ABORT               0x06 /* O/M */
#define MSG_ABORT_TASK_SET      0x06 /* O/M */ /* SPI3 Terminology */
#define MSG_MESSAGE_REJECT      0x07 /* M/M */
#define MSG_NOOP                0x08 /* M/M */
#define MSG_PARITY_ERROR        0x09 /* M/M */
#define MSG_LINK_CMD_COMPLETE   0x0a /* O/O */
#define MSG_LINK_CMD_COMPLETEF  0x0b /* O/O */ /* Obsolete */
#define MSG_BUS_DEV_RESET       0x0c /* O/M */
#define MSG_TARGET_RESET        0x0c /* O/M */ /* SPI3 Terminology */
#define MSG_ABORT_TAG           0x0d /* O/O */
#define MSG_ABORT_TASK          0x0d /* O/O */ /* SPI3 Terminology */
#define MSG_CLEAR_QUEUE         0x0e /* O/O */
#define MSG_CLEAR_TASK_SET      0x0e /* O/O */ /* SPI3 Terminology */
#define MSG_INIT_RECOVERY       0x0f /* O/O */ /* Deprecated in SPI3 */
#define MSG_REL_RECOVERY        0x10 /* O/O */ /* Deprecated in SPI3 */
#define MSG_TERM_IO_PROC        0x11 /* O/O */ /* Deprecated in SPI3 */
#define MSG_CLEAR_ACA           0x16 /* O/O */ /* SPI3 */
#define MSG_LOGICAL_UNIT_RESET  0x17 /* O/O */ /* SPI3 */
#define MSG_QAS_REQUEST         0x55 /* O/O */ /* SPI3 */

/* Messages (2 byte) */
#define MSG_SIMPLE_Q_TAG        0x20 /* O/O */
#define MSG_SIMPLE_TASK         0x20 /* O/O */ /* SPI3 Terminology */
#define MSG_HEAD_OF_Q_TAG       0x21 /* O/O */
#define MSG_HEAD_OF_QUEUE_TASK  0x21 /* O/O */ /* SPI3 Terminology */
#define MSG_ORDERED_Q_TAG       0x22 /* O/O */
#define MSG_ORDERED_TASK        0x22 /* O/O */ /* SPI3 Terminology */
#define MSG_IGN_WIDE_RESIDUE    0x23 /* O/O */
#define MSG_ACA_TASK            0x24 /* 0/0 */ /* SPI3 */

/* Identify message */               /* M/M */  
#define MSG_IDENTIFYFLAG        0x80 
#define MSG_IDENTIFY_DISCFLAG   0x40 
#define MSG_IDENTIFY(lun, disc) (((disc) ? 0xc0 : MSG_IDENTIFYFLAG) | (lun))
#define MSG_ISIDENTIFY(m)       ((m) & MSG_IDENTIFYFLAG)
#define MSG_IDENTIFY_LUNMASK    0x3F 

/* Extended messages (opcode and length) */
#define MSG_EXT_SDTR            0x01
#define MSG_EXT_SDTR_LEN        0x03

#define MSG_EXT_WDTR            0x03
#define MSG_EXT_WDTR_LEN        0x02
#define MSG_EXT_WDTR_BUS_8_BIT  0x00
#define MSG_EXT_WDTR_BUS_16_BIT 0x01
#define MSG_EXT_WDTR_BUS_32_BIT 0x02 /* Deprecated in SPI3 */

#define MSG_EXT_PPR             0x04 /* SPI3/SPI4 */
#define MSG_EXT_PPR_LEN         0x06
#define MSG_EXT_PPR_PCOMP_EN    0x80
#define MSG_EXT_PPR_RTI         0x40
#define MSG_EXT_PPR_RD_STRM     0x20
#define MSG_EXT_PPR_WR_FLOW     0x10
#define MSG_EXT_PPR_HOLD_MCS    0x08
#define MSG_EXT_PPR_QAS_REQ     0x04
#define MSG_EXT_PPR_DT_REQ      0x02
#define MSG_EXT_PPR_IU_REQ      0x01