dev/esp/esp_pci.c

210 	struct esp_pci_softc *esc;
214 	esc = device_get_softc(dev);
215 	sc = &esc->sc_ncr53c9x;
219 	esc->sc_dev = dev;
224 	error = bus_alloc_resources(dev, esp_pci_res_spec, esc->sc_res);
227 		bus_release_resources(dev, esp_pci_res_spec, esc->sc_res);
234 	    BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &esc->sc_pdmat);
287 	error = bus_dma_tag_create(esc->sc_pdmat, PAGE_SIZE, 0,
290 	    busdma_lock_mutex, &sc->sc_lock, &esc->sc_xferdmat);
295 	error = bus_dmamap_create(esc->sc_xferdmat, 0, &esc->sc_xferdmam);
301 	error = bus_setup_intr(dev, esc->sc_res[ESP_PCI_RES_INTR],
303 	    &esc->sc_ih);
310 	sc->sc_dev = esc->sc_dev;
313 		device_printf(esc->sc_dev, "ncr53c9x_attach failed\n");
320 	 bus_teardown_intr(esc->sc_dev, esc->sc_res[ESP_PCI_RES_INTR],
321 	    esc->sc_ih);
323 	bus_dmamap_destroy(esc->sc_xferdmat, esc->sc_xferdmam);
325 	bus_dma_tag_destroy(esc->sc_xferdmat);
327 	bus_dma_tag_destroy(esc->sc_pdmat);
329 	bus_release_resources(dev, esp_pci_res_spec, esc->sc_res);
339 	struct esp_pci_softc *esc;
342 	esc = device_get_softc(dev);
343 	sc = &esc->sc_ncr53c9x;
345 	bus_teardown_intr(esc->sc_dev, esc->sc_res[ESP_PCI_RES_INTR],
346 	    esc->sc_ih);
350 	bus_dmamap_destroy(esc->sc_xferdmat, esc->sc_xferdmam);
351 	bus_dma_tag_destroy(esc->sc_xferdmat);
352 	bus_dma_tag_destroy(esc->sc_pdmat);
353 	bus_release_resources(dev, esp_pci_res_spec, esc->sc_res);
376 	struct esp_pci_softc *esc = (struct esp_pci_softc *)arg;
388 	WRITE_DMAREG(esc, DMA_SPA, segs[0].ds_addr);
398 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
400 	return (READ_ESPREG(esc, reg));
406 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
408 	WRITE_ESPREG(esc, reg, v);
414 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
416 	return (READ_ESPREG(esc, NCR_STAT) & NCRSTAT_INT) != 0;
422 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
424 	WRITE_DMAREG(esc, DMA_CMD, DMACMD_IDLE);
426 	esc->sc_active = 0;
432 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
440 	xferdmat = esc->sc_xferdmat;
441 	xferdmam = esc->sc_xferdmam;
442 	datain = esc->sc_datain;
444 	dmastat = READ_DMAREG(esc, DMA_STAT);
448 		WRITE_DMAREG(esc, DMA_CMD, DMACMD_ABORT | (datain != 0 ?
451 		device_printf(esc->sc_dev, "DMA error detected; Aborting.\n");
460 		device_printf(esc->sc_dev, "DMA aborted.\n");
461 		WRITE_DMAREG(esc, DMA_CMD, DMACMD_IDLE | (datain != 0 ?
463 		esc->sc_active = 0;
467 	KASSERT(esc->sc_active != 0, ("%s: DMA wasn't active", __func__));
471 	esc->sc_active = 0;
473 	dmasize = esc->sc_dmasize;
477 		    __func__, READ_ESPREG(esc, NCR_TCL) |
478 		    (READ_ESPREG(esc, NCR_TCM) << 8),
479 		    READ_ESPREG(esc, NCR_TCL), READ_ESPREG(esc, NCR_TCM)));
491 	    (resid = (READ_ESPREG(esc, NCR_FFLAG) & NCRFIFO_FF)) != 0)
500 			resid = READ_ESPREG(esc, NCR_FFLAG) & NCRFIFO_FF;
503 				    READ_ESPREG(esc, NCR_FFLAG) & NCRFIFO_FF;
504 			WRITE_DMAREG(esc, DMA_CMD, DMACMD_BLAST | DMACMD_DIR);
507 				if ((READ_DMAREG(esc, DMA_STAT) &
513 				p = *esc->sc_dmaaddr;
516 		resid += READ_ESPREG(esc, NCR_TCL) |
517 		    (READ_ESPREG(esc, NCR_TCM) << 8) |
518 		    (READ_ESPREG(esc, NCR_TCH) << 16);
521 			dmastat = READ_DMAREG(esc, DMA_STAT);
523 	WRITE_DMAREG(esc, DMA_CMD, DMACMD_IDLE | (datain != 0 ?
543 		*p = READ_ESPREG(esc, NCR_FIFO);
560 	    READ_ESPREG(esc, NCR_TCL), READ_ESPREG(esc, NCR_TCM),
561 	    READ_ESPREG(esc, NCR_TCH), trans, resid));
563 	*esc->sc_dmalen -= trans;
564 	*esc->sc_dmaaddr = (char *)*esc->sc_dmaaddr + trans;
573 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
576 	WRITE_DMAREG(esc, DMA_CMD, DMACMD_IDLE | (datain != 0 ? DMACMD_DIR :
579 	*dmasize = esc->sc_dmasize = ulmin(*dmasize, MDL_SEG_SIZE);
580 	esc->sc_dmaaddr = addr;
581 	esc->sc_dmalen = len;
582 	esc->sc_datain = datain;
591 	WRITE_DMAREG(esc, DMA_STC, *dmasize);
598 	error = bus_dmamap_load(esc->sc_xferdmat, esc->sc_xferdmam,
599 	    *esc->sc_dmaaddr, *dmasize, esp_pci_xfermap, sc, BUS_DMA_NOWAIT);
607 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
610 	datain = esc->sc_datain;
613 	if (esc->sc_dmasize == 0)
617 	bus_dmamap_sync(esc->sc_xferdmat, esc->sc_xferdmam, datain != 0 ?
622 	WRITE_DMAREG(esc, DMA_CMD, DMACMD_IDLE | /* DMACMD_INTE | */
626 	WRITE_DMAREG(esc, DMA_CMD, DMACMD_START | /* DMACMD_INTE | */
629 	esc->sc_active = 1;
635 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
639 	WRITE_DMAREG(esc, DMA_CMD,
640 	    DMACMD_ABORT | (esc->sc_datain != 0 ? DMACMD_DIR : 0));
641 	bus_dmamap_unload(esc->sc_xferdmat, esc->sc_xferdmam);
643 	esc->sc_active = 0;
649 	struct esp_pci_softc *esc = (struct esp_pci_softc *)sc;
651 	/* XXX should we check esc->sc_active? */
652 	if ((READ_DMAREG(esc, DMA_CMD) & DMACMD_CMD) != DMACMD_IDLE)