/* $NetBSD: scsi_message.h,v 1.17 2006/08/26 23:32:55 bjh21 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 */
#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_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) \
(MSG_IDENTIFYFLAG | ((disc) ? MSG_IDENTIFY_DISCFLAG : 0) | (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 */
#define MSG_EXT_PPR_LEN 0x06
/*
* Offsets: 0x3: transfer period factor
* 0x4: reserved
* 0x5: REQ/ACK offset
* 0x6: transfer width exponent
* 0x7: flags
*/
#define MSG_EXT_PPR_IU 0x01
#define MSG_EXT_PPR_DT 0x02
#define MSG_EXT_PPR_QAS 0x04
#define MSG_EXT_PPR_HOLDMCS 0x08
#define MSG_EXT_PPR_WRFLOW 0x10
#define MSG_EXT_PPR_RDSTRM 0x20
#define MSG_EXT_PPR_RTI 0x40
#define MSG_EXT_PPR_PCOM 0x80
/*
* FreeBSD compat for above.
*/
#define MSG_EXT_PPR_QAS_REQ MSG_EXT_PPR_QAS
#define MSG_EXT_PPR_DT_REQ MSG_EXT_PPR_DT
#define MSG_EXT_PPR_IU_REQ MSG_EXT_PPR_IU
#define MSG_EXT_PPR_PCOMP_EN MSG_EXT_PPR_PCOM
#define MSG_EXT_PPR_RD_STRM MSG_EXT_PPR_RDSTRM
#define MSG_ISEXTENDED(m) ((m) == MSG_EXTENDED)
/* message length */
#define MSG_IS1BYTE(m) \
((!MSG_ISEXTENDED(m) && (m) < 0x20) || \
(m) == MSG_QAS_REQUEST || MSG_ISIDENTIFY(m))
#define MSG_IS2BYTE(m) (((m) & 0xf0) == 0x20)
