amiga/dev/sbic.c

259 	struct sbic_acb* acb;
267 	acb = dev->sc_nexus;
281 	acb->sc_dmacmd = dev->sc_dmacmd;
294 		       acb->sc_dmacmd, asr);
298 	acb->sc_kv.dc_addr += (dev->sc_tcnt - count);
299 	acb->sc_kv.dc_count -= (dev->sc_tcnt - count);
300 	acb->sc_pa.dc_addr += (dev->sc_tcnt - count);
301 	acb->sc_pa.dc_count -= ((dev->sc_tcnt - count)>>1);
303 	acb->sc_tcnt = dev->sc_tcnt = count;
323 	struct sbic_acb *acb;
326 	acb = dev->sc_nexus;
327 	if (!acb->sc_kv.dc_count) {
335 	dev->sc_last = dev->sc_cur = &acb->sc_pa;
336 	dev->sc_tcnt = acb->sc_tcnt;
337 	dev->sc_dmacmd = acb->sc_dmacmd;
346 		paddr = acb->sc_pa.dc_addr =
347 			(char *) kvtop(acb->sc_kv.dc_addr);
349 		vaddr = acb->sc_kv.dc_addr;
350 		count = acb->sc_kv.dc_count;
352 		    count < acb->sc_kv.dc_count
356 		if (count > acb->sc_kv.dc_count) {
357 			count = acb->sc_kv.dc_count;
366 		acb->sc_tcnt = count;
367 		acb->sc_pa.dc_count = count >> 1;
372 			       acb->sc_kv.dc_addr,
373 			       acb->sc_kv.dc_count,
374 			       acb->sc_pa.dc_addr,
375 			       acb->sc_tcnt);
401 	struct sbic_acb *acb;
420 		acb = dev->free_list.tqh_first;
421 		if (acb)
422 			TAILQ_REMOVE(&dev->free_list, acb, chain);
426 		if (acb == NULL) {
428 			printf("unable to allocate acb\n");
432 		acb->flags = ACB_ACTIVE;
434 			acb->flags |= ACB_DATAIN;
435 		acb->xs = xs;
436 		memcpy(&acb->cmd, xs->cmd, xs->cmdlen);
437 		acb->clen = xs->cmdlen;
438 		acb->sc_kv.dc_addr = xs->data;
439 		acb->sc_kv.dc_count = xs->datalen;
440 		acb->pa_addr = xs->data ? (char *)kvtop(xs->data) : 0;	/* XXXX check */
452 				dev->sc_nexus = acb;
458 					&acb->cmd, acb->clen,
459 					acb->sc_kv.dc_addr, acb->sc_kv.dc_count);
460 			} while (dev->sc_nexus != acb);
461 			sbic_scsidone(acb, stat);
469 		TAILQ_INSERT_TAIL(&dev->ready_list, acb, chain);
507 	struct sbic_acb *acb;
515 	for (acb = dev->ready_list.tqh_first; acb; acb = acb->chain.tqe_next) {
516 		periph = acb->xs->xs_periph;
521 			TAILQ_REMOVE(&dev->ready_list, acb, chain);
522 			dev->sc_nexus = acb;
525 			acb->sc_pa.dc_addr = acb->pa_addr;	/* XXXX check */
531 	if (acb == NULL)
534 	dev->sc_xs = xs = acb->xs;
552 			periph->periph_lun, &acb->cmd,
553 		    acb->clen, acb->sc_kv.dc_addr, acb->sc_kv.dc_count);
560 	sbic_scsidone(acb, stat);
565 sbic_scsidone(struct sbic_acb *acb, int stat)
572 	xs = acb->xs;
577 	if (acb == NULL || xs == NULL) {
611 	if (acb == dev->sc_nexus) {
618 	} else if (dev->ready_list.tqh_last == &acb->chain.tqe_next) {
619 		TAILQ_REMOVE(&dev->ready_list, acb, chain);
624 			if (acb2 == acb) {
625 				TAILQ_REMOVE(&dev->nexus_list, acb, chain);
633 		else if (acb->chain.tqe_next) {
634 			TAILQ_REMOVE(&dev->ready_list, acb, chain);
636 			printf("%s: can't find matching acb\n",
644 	acb->flags = ACB_FREE;
645 	TAILQ_INSERT_HEAD(&dev->free_list, acb, chain);
744 	while (acb = dev->nexus_list.tqh_first) {
745 		acb->xs->error = XS_DRIVER_STUFFUP;
746 		sbic_scsidone(acb, -1 /*acb->stat[0]*/);
802 	struct sbic_acb *acb;
815 		acb = dev->sc_acb;
816 		memset(acb, 0, sizeof(dev->sc_acb));
817 		for (i = 0; i < sizeof(dev->sc_acb) / sizeof(*acb); i++) {
818 			TAILQ_INSERT_TAIL(&dev->free_list, acb, chain);
819 			acb++;
858 	struct sbic_acb *acb;
920 		acb = dev->sc_acb;
921 		memset(acb, 0, sizeof(dev->sc_acb));
922 		for (i = 0; i < sizeof(dev->sc_acb) / sizeof(*acb); i++) {
923 			TAILQ_INSERT_TAIL(&dev->free_list, acb, chain);
924 			acb++;
932 		while (acb = dev->nexus_list.tqh_first) {
933 			acb->xs->error = XS_DRIVER_STUFFUP;
934 			sbic_scsidone(acb, -1 /*acb->stat[0]*/);
1320 	struct sbic_acb *acb;
1331 	acb = dev->sc_nexus;
1334 	dev->sc_last = dev->sc_cur = &acb->sc_pa;
1335 	dev->sc_tcnt = acb->sc_tcnt = 0;
1336 	acb->sc_pa.dc_count = 0; /* No DMA */
1337 	acb->sc_kv.dc_addr = buf;
1338 	acb->sc_kv.dc_count = len;
1345 		       acb->sc_kv.dc_count);
1435 			if (acb->sc_kv.dc_count <= 0)
1440 					  acb->sc_kv.dc_count,
1445 					 acb->sc_kv.dc_count,
1446 					 acb->sc_kv.dc_addr);
1449 					  acb->sc_kv.dc_count,
1450 					  acb->sc_kv.dc_addr,
1452 			  acb->sc_kv.dc_addr +=
1453 				  (acb->sc_kv.dc_count - i);
1454 			  acb->sc_kv.dc_count = i;
1541 		       acb->sc_kv.dc_count,
1608 	struct sbic_acb *acb;
1613 	acb = dev->sc_nexus;
1650 	if (acb->flags & ACB_DATAIN)
1658 	addr = acb->sc_kv.dc_addr;
1659 	count = acb->sc_kv.dc_count;
1660 	if (count && (char *)kvtop(addr) != acb->sc_pa.dc_addr)	{ /* XXXX check */
1662 		    acb->sc_pa.dc_addr, (unsigned)kvtop(addr));
1677 			acb->flags |= ACB_BBUF;
1678 			acb->sc_dmausrbuf = addr;
1679 			acb->sc_dmausrlen = count;
1680 			acb->sc_usrbufpa = (u_char *)kvtop(addr);
1684 				printf("xfer: (%p->%p,%lx)\n", acb->sc_dmausrbuf,
1685 				       acb->sc_usrbufpa, acb->sc_dmausrlen);
1711 		acb->sc_kv.dc_addr = addr;
1723 	acb->sc_kv.dc_addr = addr;
1724 	acb->sc_kv.dc_count = count;
1728 	acb->sc_tcnt = dev->sc_tcnt = 0;
1729 	acb->sc_pa.dc_count = 0;
1736 		dev->sc_tcnt = dev->sc_dmago(dev, acb->sc_pa.dc_addr,
1737 		    acb->sc_pa.dc_count,
2200 	struct sbic_acb *acb;
2209 	acb = dev->sc_nexus;
2219 		if (sbicxfstart(regs, acb->clen, CMD_PHASE, sbic_cmd_wait))
2220 			if (sbicxfout(regs, acb->clen,
2221 				      &acb->cmd, CMD_PHASE))
2254 		if (acb->flags & ACB_BBUF) {
2255 			if ((u_char *)kvtop(acb->sc_dmausrbuf) != acb->sc_usrbufpa)
2257 				    device_xname(dev->sc_dev), acb->sc_usrbufpa,
2258 				    (unsigned)kvtop(acb->sc_dmausrbuf));
2262 			       acb->sc_dmausrlen,
2267 			      acb->sc_dmausrbuf,
2268 			      acb->sc_dmausrlen);
2271 		sbic_scsidone(acb, dev->sc_stat[0]);
2284 		    (dev->sc_flags & SBICF_ICMD) || acb->sc_dmacmd == 0) {
2287 			if (acb->sc_kv.dc_count <= 0) {
2289 				       acb->sc_kv.dc_count, asr, csr);
2294 					acb->sc_kv.dc_count,
2299 						   acb->sc_kv.dc_count,
2300 						   acb->sc_kv.dc_addr);
2303 						    acb->sc_kv.dc_count,
2304 						    acb->sc_kv.dc_addr,
2307 			acb->sc_kv.dc_addr +=
2308 				(acb->sc_kv.dc_count - i);
2309 			acb->sc_kv.dc_count = i;
2311 			if (acb->sc_kv.dc_count <= 0) {
2313 				       acb->sc_kv.dc_count, asr, csr);
2329 			dev->sc_tcnt = acb->sc_tcnt = tcnt;
2391 		TAILQ_INSERT_HEAD(&dev->nexus_list, acb, chain);
2396 		if ((acb->xs->xs_control & XS_CTL_POLL)
2472 		for (acb = dev->nexus_list.tqh_first; acb;
2473 		    acb = acb->chain.tqe_next) {
2474 			if (acb->xs->xs_periph->periph_target != newtarget ||
2475 			    acb->xs->xs_periph->periph_lun != newlun)
2477 			TAILQ_REMOVE(&dev->nexus_list, acb, chain);
2478 			dev->sc_nexus = acb;
2479 			dev->sc_xs = acb->xs;
2485 		if (acb == NULL) {
2537 			sbic_scsidone(acb, -1);
2661 sbic_dump_acb(struct sbic_acb *acb)
2663 	u_char *b = (u_char *) &acb->cmd;
2666 	printf("acb@%p ", acb);
2667 	if (acb->xs == NULL) {
2672 		acb->xs->xs_periph->periph_target,
2673 	    acb->xs->xs_periph->periph_lun, acb->flags, acb->clen);
2674 	for (i = acb->clen; i; --i)
2677 	printf("  xs: %8p data %8p:%04x ", acb->xs, acb->xs->data,
2678 	    acb->xs->datalen);
2679 	printf("va %8p:%04x ", acb->sc_kv.dc_addr, acb->sc_kv.dc_count);
2680 	printf("pa %8p:%04x tcnt %lx\n", acb->sc_pa.dc_addr, acb->sc_pa.dc_count,
2681 	    acb->sc_tcnt);
2689 	struct sbic_acb *acb;
2804 	if ((acb = dev->free_list.tqh_first)) {
2806 		while (acb) {
2807 			sbic_dump_acb(acb);
2808 			acb = acb->chain.tqe_next;
2811 	if ((acb = dev->ready_list.tqh_first)) {
2813 		while (acb) {
2814 			sbic_dump_acb(acb);
2815 			acb = acb->chain.tqe_next;
2818 	if ((acb = dev->nexus_list.tqh_first)) {
2820 		while (acb) {
2821 			sbic_dump_acb(acb);
2822 			acb = acb->chain.tqe_next;