dev/ic/cac.c

107 	struct cac_ccb *ccb;
151 	ccb = (struct cac_ccb *)sc->sc_ccbs;
153 	for (i = 0; i < CAC_MAX_CCBS; i++, ccb++) {
158 		    &ccb->ccb_dmamap_xfer);
161 			aprint_error_dev(sc->sc_dev, "can't create ccb dmamap (%d)\n",
166 		ccb->ccb_flags = 0;
167 		ccb->ccb_paddr = sc->sc_ccbs_paddr + i * sizeof(struct cac_ccb);
168 		SIMPLEQ_INSERT_TAIL(&sc->sc_ccb_free, ccb, ccb_chain);
287 	struct cac_ccb *ccb;
295 		while ((ccb = (*sc->sc_cl.cl_completed)(sc)) != NULL) {
296 			cac_ccb_done(sc, ccb);
315 	struct cac_ccb *ccb;
321 	if ((ccb = cac_ccb_alloc(sc, 1)) == NULL) {
327 		bus_dmamap_load(sc->sc_dmat, ccb->ccb_dmamap_xfer,
332 		bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap_xfer, 0, datasize,
336 		sgb = ccb->ccb_seg;
337 		nsegs = uimin(ccb->ccb_dmamap_xfer->dm_nsegs, CAC_SG_SIZE);
340 			size += ccb->ccb_dmamap_xfer->dm_segs[i].ds_len;
342 			    htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_len);
344 			    htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_addr);
351 	ccb->ccb_hdr.drive = drive;
352 	ccb->ccb_hdr.priority = 0;
353 	ccb->ccb_hdr.size = htole16((sizeof(struct cac_req) +
356 	ccb->ccb_req.next = 0;
357 	ccb->ccb_req.error = 0;
358 	ccb->ccb_req.reserved = 0;
359 	ccb->ccb_req.bcount = htole16(howmany(size, DEV_BSIZE));
360 	ccb->ccb_req.command = command;
361 	ccb->ccb_req.sgcount = nsegs;
362 	ccb->ccb_req.blkno = htole32(blkno);
364 	ccb->ccb_flags = flags;
365 	ccb->ccb_datasize = size;
370 		memset(&ccb->ccb_context, 0, sizeof(struct cac_context));
374 			cac_ccb_free(sc, ccb);
378 			ccb->ccb_flags |= CAC_CCB_ACTIVE;
380 			(*sc->sc_cl.cl_submit)(sc, ccb);
381 			rv = cac_ccb_poll(sc, ccb, 2000);
382 			cac_ccb_free(sc, ccb);
385 		memcpy(&ccb->ccb_context, context, sizeof(struct cac_context));
386 		(void)cac_ccb_start(sc, ccb);
400 	struct cac_ccb *ccb;
408 			ccb = (*sc->sc_cl.cl_completed)(sc);
409 			if (ccb != NULL)
418 		cac_ccb_done(sc, ccb);
419 	} while (ccb != wantccb);
429 cac_ccb_start(struct cac_softc *sc, struct cac_ccb *ccb)
434 	if (ccb != NULL)
435 		SIMPLEQ_INSERT_TAIL(&sc->sc_ccb_queue, ccb, ccb_chain);
437 	while ((ccb = SIMPLEQ_FIRST(&sc->sc_ccb_queue)) != NULL) {
442 		ccb->ccb_flags |= CAC_CCB_ACTIVE;
444 		(*sc->sc_cl.cl_submit)(sc, ccb);
454 cac_ccb_done(struct cac_softc *sc, struct cac_ccb *ccb)
465 	if ((ccb->ccb_flags & CAC_CCB_ACTIVE) == 0)
467 	ccb->ccb_flags &= ~CAC_CCB_ACTIVE;
470 	if ((ccb->ccb_flags & (CAC_CCB_DATA_IN | CAC_CCB_DATA_OUT)) != 0) {
471 		bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap_xfer, 0,
472 		    ccb->ccb_datasize, ccb->ccb_flags & CAC_CCB_DATA_IN ?
474 		bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap_xfer);
477 	error = ccb->ccb_req.error;
478 	if (ccb->ccb_context.cc_handler != NULL) {
479 		dv = ccb->ccb_context.cc_dv;
480 		context = ccb->ccb_context.cc_context;
481 		cac_ccb_free(sc, ccb);
482 		(*ccb->ccb_context.cc_handler)(dv, context, error);
501 	struct cac_ccb *ccb;
506 		if ((ccb = SIMPLEQ_FIRST(&sc->sc_ccb_free)) != NULL) {
511 			ccb = NULL;
518 	return (ccb);
525 cac_ccb_free(struct cac_softc *sc, struct cac_ccb *ccb)
530 	ccb->ccb_flags = 0;
533 	SIMPLEQ_INSERT_HEAD(&sc->sc_ccb_free, ccb, ccb_chain);
550 cac_l0_submit(struct cac_softc *sc, struct cac_ccb *ccb)
556 	    (char *)ccb - (char *)sc->sc_ccbs,
558 	cac_outl(sc, CAC_REG_CMD_FIFO, ccb->ccb_paddr);
564 	struct cac_ccb *ccb;
577 	ccb = (struct cac_ccb *)((char *)sc->sc_ccbs + off);
582 	if ((off & 3) != 0 && ccb->ccb_req.error == 0)
583 		ccb->ccb_req.error = CAC_RET_CMD_REJECTED;
585 	return (ccb);