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Add MacOS functions SCSIReset(), SCSIGet(), SCSISelect(), SCSIcmd(), SCSIRead() and SCSIComplete

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This commit is contained in:
Laurent Vivier 2004-12-01 00:11:36 +00:00
parent 095b9e09aa
commit aaa8e0a711
2 changed files with 124 additions and 0 deletions
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96
second/glue.S
View File

@ -236,3 +236,99 @@ SysError:
dc.w 0xA9C9 /* SysError */
unlk %fp
rts
#if defined(SCSI_SUPPORT)
/* SCSI support */
.equ _SCSIReset, 0x0000
.equ _SCSIGet, 0x0001
.equ _SCSISelect, 0x0002
.equ _SCSICmd, 0x0003
.equ _SCSIComplete, 0x0004
.equ _SCSIRead, 0x0005
.equ _SCSIWrite, 0x0006
.macro SCSIDispatch selector
move.w #\selector, -(%sp)
dc.w 0xA815 /* _SCSIDispatch */
move.w (%sp)+, %d0
ext.l %d0
.endm
/* OSErr SCSIReset(void) */
.global SCSIReset
SCSIReset:
link %fp, #0
clr.w -(%sp)
SCSIDispatch(_SCSIReset)
unlk %fp
rts
/* OSErr SCSIGet(void) */
.global SCSIGet
SCSIGet:
link %fp, #0
clr.w -(%sp)
SCSIDispatch(_SCSIGet)
unlk %fp
rts
/* OSErr SCSISelect(short targetID) */
.global SCSISelect
SCSISelect:
link %fp, #0
move.l 8(%fp), %d0 /* targetID */
clr.w -(%sp)
move.w %d0, -(%sp)
SCSIDispatch(_SCSISelect)
unlk %fp
rts
/* OSErr SCSICmd(void* buffer, short count) */
.global SCSICmd
SCSICmd:
link %fp, #0
move.l 8(%fp), %d0 /* buffer */
move.l 12(%fp), %d1 /* count */
clr.w -(%sp)
move.l %d0, -(%sp) /* buffer */
move.w %d1, -(%sp) /* count */
SCSIDispatch(_SCSICmd)
unlk %fp
rts
/* OSErr SCSIRead(void *tibPtr) */
.global SCSIRead
SCSIRead:
link %fp, #0
move.l 8(%fp), %d0 /* tibPtr */
clr.w -(%sp)
move.l %d0, -(%sp)
SCSIDispatch(_SCSIRead)
unlk %fp
rts
/* OSErr SCSIComplete(short *stat, short *message, unsigned long wait)*/
.global SCSIComplete
SCSIComplete:
link %fp, #0
move.l %d0, -(%sp)
move.l 8(%fp), %d0 /* stat */
move.l 12(%fp), %d1 /* message */
move.l 16(%fp), %d2 /* wait */
clr.w -(%sp)
move.l %d0, -(%sp)
move.l %d1, -(%sp)
move.l %d2, -(%sp)
SCSIDispatch(_SCSIComplete)
unlk %fp
rts
#endif /* SCSI_SUPPORT */

28
second/glue.h
View File

@ -190,3 +190,31 @@ extern OSErr PBOpenSync(ParmBlkPtr paramBlock);
extern OSErr PBCloseSync(ParmBlkPtr paramBlock);
extern OSErr PBControlSync(ParmBlkPtr paramBlock);
extern void SysError(short errorCode);
#if defined(SCSI_SUPPORT)
enum {
op_inc = 1, /* transfer data, increment buffer pointer */
op_no_inc = 2, /* transfer data, don't increment pointer */
op_add = 3, /* add long to address */
op_mode = 4, /* move long to address */
op_loop = 5, /* decrement counter and loop if > 0 */
op_nop = 6, /* no operation */
op_stop = 7, /* stop TIB execution */
op_comp = 8, /* compare SCSI data with memory */
};
typedef struct TIB { /* Transfer Instruction Block */
short opcode; /* operation code */
int param1; /* 1st parameter */
int param2; /* 2nd parameter */
} __attribute__((packed)) TIB_t;
extern OSErr SCSIReset(void);
extern OSErr SCSIGet(void);
extern OSErr SCSISelect(short targetID);
extern OSErr SCSICmd(void *buffer, short count);
extern OSErr SCSIRead(void *tibPtr);
extern OSErr SCSIComplete(short *stat, short *message, unsigned long wait);
#endif /* SCSI_SUPPORT */