mac68k/obio/esp.c

178 	struct esp_softc	*esc = device_private(self);
179 	struct ncr53c9x_softc	*sc = &esc->sc_ncr53c9x;
188 	esc->sc_tag = oa->oa_tag;
208 			if (bus_space_map(esc->sc_tag, 0xf9800024,
209 					  4, 0, &esc->sc_bsh)) {
214 				bus_space_write_4(esc->sc_tag,
215 						  esc->sc_bsh, 0, 0x1d1);
219 		if (bus_space_map(esc->sc_tag, 0xf9800028,
220 				  4, 0, &esc->sc_bsh)) {
224 			bus_space_write_4(esc->sc_tag, esc->sc_bsh, 0, 0x1d1);
243 		esp0 = esc;
245 		esc->sc_reg = (volatile uint8_t *)SCSIBase;
246 		via2_register_irq(VIA2_SCSIIRQ, esp_intr, esc);
247 		esc->irq_mask = V2IF_SCSIIRQ;
259 		esp1 = esc;
261 		esc->sc_reg = (volatile uint8_t *)SCSIBase + 0x402;
263 		esc->irq_mask = 0;
271 	aprint_normal(": address %p", esc->sc_reg);
317 	if (esc->irq_mask) {
319 		via2_reg(vIFR) = esc->irq_mask;
320 		via2_reg(vIER) = 0x80 | esc->irq_mask;
338 	struct esp_softc *esc = (struct esp_softc *)sc;
340 	return esc->sc_reg[reg * 16];
346 	struct esp_softc *esc = (struct esp_softc *)sc;
352 	esc->sc_reg[reg * 16] = v;
363 	struct esp_softc *esc = (struct esp_softc *)sc;
365 	return esc->sc_active;
371 	struct esp_softc *esc = (struct esp_softc *)sc;
373 	return esc->sc_reg[NCR_STAT * 16] & 0x80;
379 	struct esp_softc *esc = (struct esp_softc *)sc;
381 	esc->sc_active = 0;
382 	esc->sc_tc = 0;
388 	struct esp_softc *esc = (struct esp_softc *)sc;
394 	if (esc->sc_active == 0) {
400 		esc->sc_active = 0;
404 	cnt = *esc->sc_dmalen;
405 	if (*esc->sc_dmalen == 0) {
409 	p = *esc->sc_dmaaddr;
413 	cmdreg = esc->sc_reg + NCR_CMD * 16;
414 	fiforeg = esc->sc_reg + NCR_FIFO * 16;
415 	statreg = esc->sc_reg + NCR_STAT * 16;
416 	intrreg = esc->sc_reg + NCR_INTR * 16;
418 		if (esc->sc_datain) {
424 				esc->sc_active = 0;
433 				esc->sc_active = 0;
437 		if (esc->sc_active) {
447 	} while (esc->sc_active && (espintr & NCRINTR_BS));
451 	*esc->sc_dmaaddr = p;
452 	*esc->sc_dmalen = cnt;
454 	if (*esc->sc_dmalen == 0) {
455 		esc->sc_tc = NCRSTAT_TC;
457 	sc->sc_espstat |= esc->sc_tc;
465 	struct esp_softc *esc = (struct esp_softc *)sc;
467 	esc->sc_dmaaddr = addr;
468 	esc->sc_dmalen = len;
469 	esc->sc_datain = datain;
470 	esc->sc_dmasize = *dmasize;
471 	esc->sc_tc = 0;
479 	struct esp_softc *esc = (struct esp_softc *)sc;
481 	if (esc->sc_datain == 0) {
482 		esc->sc_reg[NCR_FIFO * 16] = **esc->sc_dmaaddr;
483 		(*esc->sc_dmalen)--;
484 		(*esc->sc_dmaaddr)++;
486 	esc->sc_active = 1;
492 	struct esp_softc *esc = (struct esp_softc *)sc;
494 	esc->sc_reg[reg * 16] = val;
504 	struct esp_softc *esc = (struct esp_softc *)sc;
507 	if (esc->sc_active == 0)
510 	esc->sc_active = 0;
512 	if (esc->sc_dmasize == 0) {
530 		if (esc->sc_datain == 0) {
544 	trans = esc->sc_dmasize - resid;
547 		trans = *esc->sc_dmalen;
556 	*esc->sc_dmaaddr += trans;
557 	*esc->sc_dmalen -= trans;
566 	struct esp_softc *esc = (struct esp_softc *)sc;
568 	esc->sc_dmaaddr = addr;
569 	esc->sc_dmalen = len;
572 		esc->sc_pad = 1;
574 		esc->sc_pad = 0;
577 	esc->sc_datain = datain;
578 	esc->sc_dmasize = *dmasize;
581 	if (esc->sc_dmasize == 0) {
588 	    (long) *addr, (long) *len, datain, (long) esc->sc_dmasize);
596 esp_dafb_have_dreq(struct esp_softc *esc)
599 	return *(volatile uint32_t *)(esc->sc_bsh.base) & 0x200;
603 esp_iosb_have_dreq(struct esp_softc *esc)
647 	struct esp_softc *esc = (struct esp_softc *)sc;
657 	esc->sc_active = 1;
661 	addr = (uint16_t *)*esc->sc_dmaaddr;
662 	len  = esc->sc_dmasize;
668 		    (long) addr, (long) len, esc->sc_datain);
688 		statreg = esc->sc_reg + NCR_STAT * 16;
697 			if (esp_have_dreq(esc)) {
703 				len = esc->sc_dmasize -
704 				    ((long)addr - (long)*esc->sc_dmaaddr);
706 				if (esc->sc_datain == 0) {
746 	statreg = esc->sc_reg + NCR_STAT * 16;
747 	pdma = (volatile uint16_t *)(esc->sc_reg + 0x100);
757 	if (esc->sc_datain == 0) {
788 		if (esc->sc_pad) {
792 			while (!esp_have_dreq(esc)) {
831 		if (esc->sc_pad) {
835 			while (!esp_have_dreq(esc)) {
885 	struct esp_softc *esc = (struct esp_softc *)sc;
887 	if (esc->sc_reg[NCR_STAT * 16] & 0x80) {