acorn32/podulebus/sbic.c

283 	struct sbic_acb* acb;
291 	acb = dev->sc_nexus;
292 	if (acb == NULL) {
312 	dev->sc_dmastop(dev->sc_dmah, dev->sc_dmat, acb);
326 	acb->offset += acb->sc_tcnt - count;
330 	    dev->target, acb->offset, asr), data_pointer_debug >= 1);
332 	acb->sc_tcnt = 0;
351 	struct sbic_acb *acb;
370 		acb = dev->free_list.tqh_first;
371 		if (acb)
372 			TAILQ_REMOVE(&dev->free_list, acb, chain);
375 		if (acb == NULL) {
387 		acb->flags = ACB_ACTIVE;
389 			acb->flags |= ACB_DATAIN;
390 		acb->xs = xs;
391 		memcpy(&acb->cmd, xs->cmd, xs->cmdlen);
392 		acb->clen = xs->cmdlen;
393 		acb->data = xs->data;
394 		acb->datalen = xs->datalen;
397 		    (unsigned) acb->cmd.opcode, acb->clen, xs->data,
410 				dev->sc_nexus = acb;
415 				    periph->periph_lun, acb);
416 			} while (dev->sc_nexus != acb);
418 			sbic_scsidone(acb, stat);
425 		TAILQ_INSERT_TAIL(&dev->ready_list, acb, chain);
458 	struct sbic_acb *acb;
466 	for (acb = dev->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) {
467 		periph = acb->xs->xs_periph;
472 			TAILQ_REMOVE(&dev->ready_list, acb, chain);
473 			dev->sc_nexus = acb;
474 			periph = acb->xs->xs_periph;
482 	if (acb == NULL)
485 	xs = acb->xs;
494 	DBG(if (data_pointer_debug > 1) sbic_dump_acb(acb));
502 	    && dev->sc_dmaok(dev->sc_dmah, dev->sc_dmat, acb))
503 		acb->flags |= ACB_DMA;
506 	    (!sbic_parallel_operations && (acb->flags & ACB_DMA) == 0))
508 		    periph->periph_lun, acb);
515 	sbic_scsidone(acb, stat);
520 sbic_scsidone(struct sbic_acb *acb, int stat)
528 	xs = acb->xs;
533 	if (acb == NULL || xs == NULL) {
545 	    dev->target,  dev->lun,  stat, acb->flags),
564 	if (acb == dev->sc_nexus) {
570 	} else if (dev->ready_list.tqh_last == &acb->chain.tqe_next) {
571 		TAILQ_REMOVE(&dev->ready_list, acb, chain);
576 			if (acb2 == acb) {
577 				TAILQ_REMOVE(&dev->nexus_list, acb, chain);
585 		else if (acb->chain.tqe_next) {
586 			TAILQ_REMOVE(&dev->ready_list, acb, chain);
588 			printf("%s: can't find matching acb\n",
596 	acb->flags = ACB_FREE;
597 	TAILQ_INSERT_HEAD(&dev->free_list, acb, chain);
655 	while (acb = dev->nexus_list.tqh_first) {
656 		acb->xs->error = XS_DRIVER_STUFFUP;
657 		sbic_scsidone(acb, -1 /*acb->stat[0]*/);
720 	struct sbic_acb *acb;
736 		acb = dev->sc_acb;
737 		memset(acb, 0, sizeof(dev->sc_acb));
741 		for (i = 0; i < sizeof(dev->sc_acb) / sizeof(*acb); i++) {
742 			TAILQ_INSERT_TAIL(&dev->free_list, acb, chain);
743 			acb++;
786 /*	struct sbic_acb *acb;*/
859 		acb = dev->sc_acb;
860 		memset(acb, 0, sizeof(dev->sc_acb));
861 		for (i = 0; i < sizeof(dev->sc_acb) / sizeof(*acb); i++) {
862 			TAILQ_INSERT_TAIL(&dev->free_list, acb, chain);
863 			acb++;
871 		while (acb = dev->nexus_list.tqh_first) {
872 			acb->xs->error = XS_DRIVER_STUFFUP;
873 			sbic_scsidone(acb, -1 /*acb->stat[0]*/);
1248 sbicicmd(struct sbic_softc *dev, int target, int lun, struct sbic_acb *acb)
1268 	cbuf = &acb->cmd;
1269 	clen = acb->clen;
1270 	buf = acb->data;
1271 	len = acb->datalen;
1276 	acb->sc_tcnt = 0;
1371 			if (acb->datalen <= 0)
1375 			  if (sbicxfstart(regs, acb->datalen,
1379 			      i = sbicxfin(regs, acb->datalen, acb->data);
1381 			      i = sbicxfout(regs, acb->datalen, acb->data,
1383 			  acb->data += acb->datalen - i;
1384 			  acb->datalen = i;
1468 	    acb->datalen,
1538 	struct sbic_acb *acb;
1543 	acb = dev->sc_nexus;
1546 	usedma = acb->flags & ACB_DMA;
1580 	acb->sc_tcnt = 0;
1588 		acb->offset = 0;
1589 		acb->sc_tcnt = 0;
1591 		tcnt = dev->sc_dmasetup(dev->sc_dmah, dev->sc_dmat, acb,
1592 		    (acb->flags & ACB_DATAIN) != 0);
1651 /*	struct sbic_acb *acb;*/
2028 	struct sbic_acb *acb;
2035 	acb = dev->sc_nexus;
2045 		if (sbicxfstart(regs, acb->clen, CMD_PHASE, sbic_cmd_wait))
2046 			if (sbicxfout(regs, acb->clen,
2047 				      &acb->cmd, CMD_PHASE))
2062 		if (acb->flags & ACB_DMA) {
2065 			dev->sc_dmafinish(dev->sc_dmah, dev->sc_dmat, acb);
2069 		sbic_scsidone(acb, dev->sc_stat[0]);
2084 		if ((acb->xs->xs_control & XS_CTL_POLL) ||
2086 		    (acb->flags & ACB_DMA) == 0) {
2089 			if (acb->datalen <= 0) {
2091 				    acb->datalen, asr, csr);
2095 			if (sbicxfstart(regs, acb->datalen,
2099 					i = sbicxfin(regs, acb->datalen,
2100 					    acb->data);
2102 					i = sbicxfout(regs, acb->datalen,
2103 					    acb->data, SBIC_PHASE(csr));
2105 			acb->data += acb->datalen - i;
2106 			acb->datalen = i;
2120 			if (acb->offset >= acb->datalen) {
2122 				    acb->offset, asr, csr);
2126 			    dev->target, acb->offset),
2130 			acb->sc_tcnt =
2132 				acb, acb->offset);
2134 			    acb->sc_tcnt), data_pointer_debug);
2135 			SBIC_TC_PUT(regs, (unsigned)acb->sc_tcnt);
2181 		TAILQ_INSERT_HEAD(&dev->nexus_list, acb, chain);
2185 		if ((acb->xs->xs_control & XS_CTL_POLL)
2262 		for (acb = dev->nexus_list.tqh_first; acb;
2263 		    acb = acb->chain.tqe_next) {
2264 			if (acb->xs->xs_periph->periph_target != newtarget ||
2265 			    acb->xs->xs_periph->periph_lun != newlun)
2267 			TAILQ_REMOVE(&dev->nexus_list, acb, chain);
2268 			dev->sc_nexus = acb;
2274 		if (acb == NULL) {
2298 			dev->sc_dmafinish(dev->sc_dmah, dev->sc_dmat, acb);
2305 		sbic_scsidone(acb, -1);
2400 sbic_dump_acb(struct sbic_acb *acb)
2402 	u_char *b = (u_char *) &acb->cmd;
2405 	printf("acb@%p ", acb);
2406 	if (acb->xs == NULL) {
2411 	    acb->xs->xs_periph->periph_target,
2412 	    acb->xs->xs_periph->periph_lun, acb->flags, acb->clen);
2413 	for (i = acb->clen; i; --i)
2416 	printf("  xs: %8p data %8p:%04x ", acb->xs, acb->xs->data,
2417 	    acb->xs->datalen);
2418 	printf("tcnt %lx\n", acb->sc_tcnt);
2426 	struct sbic_acb *acb;
2541 	if ((acb = dev->free_list.tqh_first)) {
2543 		while (acb) {
2544 			sbic_dump_acb(acb);
2545 			acb = acb->chain.tqe_next;
2548 	if ((acb = dev->ready_list.tqh_first)) {
2550 		while (acb) {
2551 			sbic_dump_acb(acb);
2552 			acb = acb->chain.tqe_next;
2555 	if ((acb = dev->nexus_list.tqh_first)) {
2557 		while (acb) {
2558 			sbic_dump_acb(acb);
2559 			acb = acb->chain.tqe_next;