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      1 /*	$NetBSD: scsi_message.h,v 1.17 2006/08/26 23:32:55 bjh21 Exp $	*/
      2 
      3 /* Messages (1 byte) */		     /* I/T (M)andatory or (O)ptional */
      4 #define MSG_CMDCOMPLETE		0x00 /* M/M */
      5 #define MSG_TASK_COMPLETE 	0x00 /* M/M */ /* SPI3 Terminology */
      6 #define MSG_EXTENDED		0x01 /* O/O */
      7 #define MSG_SAVEDATAPOINTER	0x02 /* O/O */
      8 #define MSG_RESTOREPOINTERS	0x03 /* O/O */
      9 #define MSG_DISCONNECT		0x04 /* O/O */
     10 #define MSG_INITIATOR_DET_ERR	0x05 /* M/M */
     11 #define MSG_ABORT		0x06 /* O/M */
     12 #define MSG_ABORT_TASK_SET	0x06 /* O/M */ /* SPI3 Terminology */
     13 #define MSG_MESSAGE_REJECT	0x07 /* M/M */
     14 #define MSG_NOOP		0x08 /* M/M */
     15 #define MSG_PARITY_ERROR	0x09 /* M/M */
     16 #define MSG_LINK_CMD_COMPLETE	0x0a /* O/O */
     17 #define MSG_LINK_CMD_COMPLETEF	0x0b /* O/O */
     18 #define MSG_BUS_DEV_RESET	0x0c /* O/M */
     19 #define MSG_TARGET_RESET	0x0c /* O/M */ /* SPI3 Terminology */
     20 #define MSG_ABORT_TAG		0x0d /* O/O */
     21 #define MSG_ABORT_TASK		0x0d /* O/O */ /* SPI3 Terminology */
     22 #define MSG_CLEAR_QUEUE		0x0e /* O/O */
     23 #define MSG_CLEAR_TASK_SET	0x0e /* O/O */ /* SPI3 Terminology */
     24 #define MSG_INIT_RECOVERY	0x0f /* O/O */ /* Deprecated in SPI3 */
     25 #define MSG_REL_RECOVERY	0x10 /* O/O */ /* Deprecated in SPI3 */
     26 #define MSG_TERM_IO_PROC	0x11 /* O/O */ /* Deprecated in SPI3 */
     27 #define MSG_QAS_REQUEST		0x55 /* O/O */ /* SPI3 */
     28 
     29 /* Messages (2 byte) */
     30 #define MSG_SIMPLE_Q_TAG	0x20 /* O/O */
     31 #define MSG_SIMPLE_TASK		0x20 /* O/O */ /* SPI3 Terminology */
     32 #define MSG_HEAD_OF_Q_TAG	0x21 /* O/O */
     33 #define MSG_HEAD_OF_QUEUE_TASK	0x21 /* O/O */ /* SPI3 Terminology */
     34 #define MSG_ORDERED_Q_TAG	0x22 /* O/O */
     35 #define MSG_ORDERED_TASK	0x22 /* O/O */ /* SPI3 Terminology */
     36 #define MSG_IGN_WIDE_RESIDUE	0x23 /* O/O */
     37 #define MSG_ACA_TASK		0x24 /* 0/0 */ /* SPI3 */
     38 
     39 /* Identify message */		     /* M/M */
     40 #define MSG_IDENTIFYFLAG	0x80
     41 #define MSG_IDENTIFY_DISCFLAG	0x40
     42 #define MSG_IDENTIFY(lun, disc)	\
     43 	(MSG_IDENTIFYFLAG | ((disc) ? MSG_IDENTIFY_DISCFLAG : 0) | (lun))
     44 #define MSG_ISIDENTIFY(m)	((m) & MSG_IDENTIFYFLAG)
     45 #define MSG_IDENTIFY_LUNMASK	0x3f
     46 
     47 /* Extended messages (opcode and length) */
     48 #define MSG_EXT_SDTR		0x01
     49 #define MSG_EXT_SDTR_LEN	0x03
     50 
     51 #define MSG_EXT_WDTR		0x03
     52 #define MSG_EXT_WDTR_LEN	0x02
     53 #define MSG_EXT_WDTR_BUS_8_BIT	0x00
     54 #define MSG_EXT_WDTR_BUS_16_BIT	0x01
     55 #define MSG_EXT_WDTR_BUS_32_BIT	0x02 /* Deprecated in SPI3 */
     56 
     57 #define MSG_EXT_PPR		0x04 /* SPI3 */
     58 #define MSG_EXT_PPR_LEN		0x06
     59 /*
     60  * Offsets:	0x3: transfer period factor
     61  * 		0x4: reserved
     62  * 		0x5: REQ/ACK offset
     63  *		0x6: transfer width exponent
     64  *		0x7: flags
     65  */
     66 #define MSG_EXT_PPR_IU		0x01
     67 #define MSG_EXT_PPR_DT		0x02
     68 #define MSG_EXT_PPR_QAS		0x04
     69 #define MSG_EXT_PPR_HOLDMCS	0x08
     70 #define MSG_EXT_PPR_WRFLOW	0x10
     71 #define MSG_EXT_PPR_RDSTRM	0x20
     72 #define MSG_EXT_PPR_RTI		0x40
     73 #define MSG_EXT_PPR_PCOM	0x80
     74 
     75 /*
     76  * FreeBSD compat for above.
     77  */
     78 #define MSG_EXT_PPR_QAS_REQ	MSG_EXT_PPR_QAS
     79 #define MSG_EXT_PPR_DT_REQ	MSG_EXT_PPR_DT
     80 #define MSG_EXT_PPR_IU_REQ	MSG_EXT_PPR_IU
     81 #define MSG_EXT_PPR_PCOMP_EN	MSG_EXT_PPR_PCOM
     82 #define MSG_EXT_PPR_RD_STRM	MSG_EXT_PPR_RDSTRM
     83 
     84 #define MSG_ISEXTENDED(m)	((m) == MSG_EXTENDED)
     85 
     86 /* message length */
     87 #define MSG_IS1BYTE(m)							\
     88 	((!MSG_ISEXTENDED(m) && (m) < 0x20) ||				\
     89 	    (m) == MSG_QAS_REQUEST || MSG_ISIDENTIFY(m))
     90 #define MSG_IS2BYTE(m)		(((m) & 0xf0) == 0x20)
     91