/*****************************************************************************
Function name : inia100_queue
Description : Queue a command and setup interrupts for a free bus.
Input : pHCB - Pointer to host adapter structure
Output : None.
Return : pSRB - Pointer to SCSI request block.
*****************************************************************************/
static int inia100_queue(struct scsi_cmnd * SCpnt, void (*done) (struct scsi_cmnd *))
{
register ORC_SCB *pSCB;
ORC_HCS *pHCB; /* Point to Host adapter control block */
pHCB = (ORC_HCS *) SCpnt->device->host->hostdata;
SCpnt->scsi_done = done;
/* Get free SCSI control block */
if ((pSCB = orc_alloc_scb(pHCB)) == NULL) {
inia100AppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */
/* printk("inia100_entry: can't allocate SCB\n"); */
return (0);
}
inia100BuildSCB(pHCB, pSCB, SCpnt);
orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
return (0);
}
/*****************************************************************************
Function name : inia100_queue
Description : Queue a command and setup interrupts for a free bus.
Input : pHCB - Pointer to host adapter structure
Output : None.
Return : pSRB - Pointer to SCSI request block.
*****************************************************************************/
int inia100_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
{
register ORC_SCB *pSCB;
ORC_HCS *pHCB; /* Point to Host adapter control block */
if (SCpnt->lun > 16) {
SCpnt->result = (DID_TIME_OUT << 16);
done(SCpnt); /* Notify system DONE */
return (0);
}
pHCB = (ORC_HCS *) SCpnt->host->base;
SCpnt->scsi_done = done;
/* Get free SCSI control block */
if ((pSCB = orc_alloc_scb(pHCB)) == NULL) {
inia100AppendSRBToQueue(pHCB, SCpnt); /* Buffer this request */
/* printk("inia100_entry: can't allocate SCB\n"); */
return (0);
}
inia100BuildSCB(pHCB, pSCB, SCpnt);
orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
return (0);
}
/*****************************************************************************
Function name : inia100SCBPost
Description : This is callback routine be called when orc finish one
SCSI command.
Input : pHCB - Pointer to host adapter control block.
pSCB - Pointer to SCSI control block.
Output : None.
Return : None.
*****************************************************************************/
void inia100SCBPost(BYTE * pHcb, BYTE * pScb)
{
Scsi_Cmnd *pSRB; /* Pointer to SCSI request block */
ORC_HCS *pHCB;
ORC_SCB *pSCB;
ESCB *pEScb;
pHCB = (ORC_HCS *) pHcb;
pSCB = (ORC_SCB *) pScb;
pEScb = pSCB->SCB_EScb;
if ((pSRB = (Scsi_Cmnd *) pEScb->SCB_Srb) == 0) {
printk("inia100SCBPost: SRB pointer is empty\n");
orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
return;
}
pEScb->SCB_Srb = NULL;
switch (pSCB->SCB_HaStat) {
case 0x0:
case 0xa: /* Linked command complete without error and linked normally */
case 0xb: /* Linked command complete without error interrupt generated */
pSCB->SCB_HaStat = 0;
break;
case 0x11: /* Selection time out-The initiator selection or target
reselection was not complete within the SCSI Time out period */
pSCB->SCB_HaStat = DID_TIME_OUT;
break;
case 0x14: /* Target bus phase sequence failure-An invalid bus phase or bus
phase sequence was requested by the target. The host adapter
will generate a SCSI Reset Condition, notifying the host with
a SCRD interrupt */
pSCB->SCB_HaStat = DID_RESET;
break;
case 0x1a: /* SCB Aborted. 07/21/98 */
pSCB->SCB_HaStat = DID_ABORT;
break;
case 0x12: /* Data overrun/underrun-The target attempted to transfer more data
than was allocated by the Data Length field or the sum of the
Scatter / Gather Data Length fields. */
case 0x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
case 0x16: /* Invalid CCB Operation Code-The first byte of the CCB was invalid. */
default:
printk("inia100: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat);
pSCB->SCB_HaStat = DID_ERROR; /* Couldn't find any better */
break;
}
if (pSCB->SCB_TaStat == 2) { /* Check condition */
memcpy((unsigned char *) &pSRB->sense_buffer[0],
(unsigned char *) &pEScb->ESCB_SGList[0], SENSE_SIZE);
}
pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16);
pSRB->scsi_done(pSRB); /* Notify system DONE */
/* Find the next pending SRB */
if ((pSRB = inia100PopSRBFromQueue(pHCB)) != NULL) { /* Assume resend will success */
/* Reuse old SCB */
inia100BuildSCB(pHCB, pSCB, pSRB); /* Create corresponding SCB */
orc_exec_scb(pHCB, pSCB); /* Start execute SCB */
} else { /* No Pending SRB */
orc_release_scb(pHCB, pSCB); /* Release SCB for current channel */
}
return;
}
