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scsi_all.h revision 1.21 
      1 /*	$NetBSD: scsi_all.h,v 1.21 2005/01/31 23:06:41 reinoud Exp $	*/
      2 
      3 /*
      4  * SCSI-specific interface description.
      5  */
      6 
      7 /*
      8  * Largely written by Julian Elischer (julian (at) tfs.com)
      9  * for TRW Financial Systems.
     10  *
     11  * TRW Financial Systems, in accordance with their agreement with Carnegie
     12  * Mellon University, makes this software available to CMU to distribute
     13  * or use in any manner that they see fit as long as this message is kept with
     14  * the software. For this reason TFS also grants any other persons or
     15  * organisations permission to use or modify this software.
     16  *
     17  * TFS supplies this software to be publicly redistributed
     18  * on the understanding that TFS is not responsible for the correct
     19  * functioning of this software in any circumstances.
     20  *
     21  * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992
     22  */
     23 
     24 #ifndef _DEV_SCSIPI_SCSI_ALL_H_
     25 #define _DEV_SCSIPI_SCSI_ALL_H_
     26 
     27 /*
     28  * Define dome bits that are in ALL (or a lot of) scsi commands
     29  */
     30 #define	SCSI_CTL_LINK		0x01
     31 #define	SCSI_CTL_FLAG		0x02
     32 #define	SCSI_CTL_VENDOR		0xC0
     33 
     34 
     35 /*
     36  * Some old SCSI devices need the LUN to be set in the top 3 bits of the
     37  * second byte of the CDB.
     38  */
     39 #define	SCSI_CMD_LUN_MASK	0xe0
     40 #define	SCSI_CMD_LUN_SHIFT	5
     41 
     42 /* XXX Is this a command ? What's its opcode ? */
     43 struct scsi_send_diag {
     44 	uint8_t opcode;
     45 	uint8_t byte2;
     46 #define	SSD_UOL		0x01
     47 #define	SSD_DOL		0x02
     48 #define	SSD_SELFTEST	0x04
     49 #define	SSD_PF		0x10
     50 	uint8_t unused[1];
     51 	uint8_t paramlen[2];
     52 	uint8_t control;
     53 };
     54 
     55 #define	SCSI_RESERVE      		0x16
     56 struct scsi_reserve {
     57 	uint8_t opcode;
     58 	uint8_t byte2;
     59 	uint8_t unused[2];
     60 	uint8_t length;
     61 	uint8_t control;
     62 };
     63 
     64 #define	SCSI_RELEASE      		0x17
     65 struct scsi_release {
     66 	uint8_t opcode;
     67 	uint8_t byte2;
     68 	uint8_t unused[2];
     69 	uint8_t length;
     70 	uint8_t control;
     71 };
     72 
     73 #define	SCSI_CHANGE_DEFINITION	0x40
     74 struct scsi_changedef {
     75 	uint8_t opcode;
     76 	uint8_t byte2;
     77 	uint8_t unused1;
     78 	uint8_t how;
     79 	uint8_t unused[4];
     80 	uint8_t datalen;
     81 	uint8_t control;
     82 };
     83 #define	SC_SCSI_1 0x01
     84 #define	SC_SCSI_2 0x03
     85 
     86 /* block descriptor, for mode sense/mode select */
     87 struct scsi_blk_desc {
     88 	uint8_t density;
     89 	uint8_t nblocks[3];
     90 	uint8_t reserved;
     91 	uint8_t blklen[3];
     92 };
     93 
     94 /*
     95  * Status Byte
     96  */
     97 #define	SCSI_OK			0x00
     98 #define	SCSI_CHECK		0x02
     99 #define	SCSI_BUSY		0x08
    100 #define	SCSI_INTERM		0x10
    101 #define	SCSI_RESV_CONFLICT	0x18
    102 #define	SCSI_TERMINATED		0x22
    103 #define	SCSI_QUEUE_FULL		0x28
    104 #define	SCSI_ACA_ACTIVE		0x30
    105 
    106 #endif /* _DEV_SCSIPI_SCSI_ALL_H_ */
    107