kopia lustrzana https://gitlab.com/sane-project/backends
157 wiersze
7.2 KiB
C
157 wiersze
7.2 KiB
C
/***************************************************************************
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* *
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* ASPI Router Library *
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* *
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* This is a sample library which shows how to send SRB's to the *
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* ASPI Router device driver. USE AT YOUR OWN RISK!! *
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* *
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* Version 1.01 - June 1997 *
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* Daniel Dorau (woodst@cs.tu-berlin.de) *
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* *
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* Changes since 1.00: *
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* abort(), AbortSRB added *
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* *
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***************************************************************************/
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#pragma pack(1)
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/* SRB command */
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#define SRB_Inquiry 0x00
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#define SRB_Device 0x01
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#define SRB_Command 0x02
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#define SRB_Abort 0x03
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#define SRB_Reset 0x04
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#define SRB_Param 0x05
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/* SRB status */
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#define SRB_Busy 0x00 /* SCSI request in progress */
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#define SRB_Done 0x01 /* SCSI request completed without error */
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#define SRB_Aborted 0x02 /* SCSI aborted by host */
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#define SRB_BadAbort 0x03 /* Unable to abort SCSI request */
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#define SRB_Error 0x04 /* SCSI request completed with error */
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#define SRB_BusyPost 0x10 /* SCSI request in progress with POST - Nokia */
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#define SRB_InvalidCmd 0x80 /* Invalid SCSI request */
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#define SRB_InvalidHA 0x81 /* Invalid Hhost adapter number */
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#define SRB_BadDevice 0x82 /* SCSI device not installed */
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/* SRB flags */
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#define SRB_Post 0x01 /* Post vector valid */
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#define SRB_Link 0x02 /* Link vector valid */
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#define SRB_SG 0x04 /* Nokia: scatter/gather */
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/* S/G: n * (4 bytes length, 4 bytes addr) */
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/* No of s/g items not limited by HA spec. */
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#define SRB_NoCheck 0x00 /* determined by command, not checked */
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#define SRB_Read 0x08 /* target to host, length checked */
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#define SRB_Write 0x10 /* host to target, length checked */
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#define SRB_NoTransfer 0x18 /* no data transfer */
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#define SRB_DirMask 0x18 /* bit mask */
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/* SRB host adapter status */
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#define SRB_NoError 0x00 /* No host adapter detected error */
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#define SRB_Timeout 0x11 /* Selection timeout */
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#define SRB_DataLength 0x12 /* Data over/underrun */
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#define SRB_BusFree 0x13 /* Unexpected bus free */
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#define SRB_BusSequence 0x14 /* Target bus sequence failure */
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/* SRB target status field */
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#define SRB_NoStatus 0x00 /* No target status */
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#define SRB_CheckStatus 0x02 /* Check status (sense data valid) */
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#define SRB_LUN_Busy 0x08 /* Specified LUN is busy */
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#define SRB_Reserved 0x18 /* Reservation conflict */
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#define MaxCDBStatus 64 /* max size of CDB + status */
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typedef struct SRB SRB;
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struct SRB {
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unsigned char cmd, /* 00 */
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status, /* 01 */
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ha_num, /* 02 */
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flags; /* 03 */
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unsigned long res_04_07; /* 04..07 */
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union { /* 08 */
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/* SRB_Inquiry */
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struct {
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unsigned char num_ha, /* 08 */
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ha_target, /* 09 */
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aspimgr_id[16], /* 0A..19 */
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host_id[16], /* 1A..29 */
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unique_id[16]; /* 2A..39 */
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} inq;
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/* SRB_Device */
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struct {
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unsigned char target, /* 08 */
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lun, /* 09 */
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devtype; /* 0A */
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} dev;
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/* SRB_Command */
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struct {
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unsigned char target, /* 08 */
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lun; /* 09 */
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unsigned long data_len; /* 0A..0D */
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unsigned char sense_len; /* 0E */
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void * _Seg16 data_ptr; /* 0F..12 */
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void * _Seg16 link_ptr; /* 13..16 */
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unsigned char cdb_len, /* 17 */
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ha_status, /* 18 */
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target_status; /* 19 */
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void (* _Seg16 post) (SRB *); /* 1A..1D */
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unsigned char res_1E_29[12]; /* 1E..29 */
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unsigned char res_2A_3F[22]; /* 2A..3F */
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unsigned char cdb_st[64]; /* 40..7F CDB+status */
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unsigned char res_80_BF[64]; /* 80..BF */
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} cmd;
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/* SRB_Abort */
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struct {
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void * _Seg16 srb; /* 08..0B */
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} abt;
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/* SRB_Reset */
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struct {
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unsigned char target, /* 08 */
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lun, /* 09 */
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res_0A_17[14], /* 0A..17 */
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ha_status, /* 18 */
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target_status; /* 19 */
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} res;
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/* SRB_Param - unused by ASPI4OS2 */
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struct {
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unsigned char unique[16]; /* 08..17 */
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} par;
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} u;
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};
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/* SCSI sense codes */
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/* Note! This list may not be complete. I did this compilation for use with tape drives.*/
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#define Sense_Current 0x70; /* Current Error */
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#define Sense_Deferred 0x71; /* Deferred Error */
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#define Sense_Filemark 0x80; /* Filemark detected */
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#define Sense_EOM 0x40; /* End of medium detected */
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#define Sense_ILI 0x20; /* Incorrect length indicator */
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/* Sense Keys */
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#define SK_NoSense 0x00; /* No Sense */
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#define SK_RcvrdErr 0x01; /* Recovered Error */
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#define SK_NotReady 0x02; /* Not ready */
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#define SK_MedErr 0x03; /* Medium Error */
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#define SK_HWErr 0x04; /* Hardware Error */
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#define SK_IllReq 0x05; /* Illegal Request */
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#define SK_UnitAtt 0x06; /* Unit attention */
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#define SK_DataProt 0x07: /* Data Protect */
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#define SK_BlankChk 0x08: /* Blank Check */
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#define SK_VndSpec 0x09; /* Vendor Specific */
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#define SK_CopyAbort 0x0A; /* Copy Aborted */
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#define SK_AbtdCmd 0x0B; /* Aborted Command */
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#define SK_Equal 0x0C; /* Equal */
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#define SK_VolOvfl 0x0D; /* Volume Overflow */
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#define SK_MisComp 0x0E; /* Miscompare */
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#define SK_Reserved 0x0F; /* Reserved */
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