pc98/cbus/olpt.c

318 	struct	lpt_softc	*sc;
322 	sc = device_get_softc(dev);
323 	callout_init(&sc->timer, 0);
326 	sc->res_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
328 	if (sc->res_port == NULL)
330 	isa_load_resourcev(sc->res_port, lpt_iat, 4);
332 	sc->sc_port = rman_get_start(sc->res_port);
333 	sc->sc_primed = 0;	/* not primed yet */
335 	outb(sc->sc_port+lpt_pstb_ctrl,	LPC_DIS_PSTB);	/* PSTB disable */
336 	outb(sc->sc_port+lpt_control,	LPC_MODE8255);	/* 8255 mode set */
337 	outb(sc->sc_port+lpt_control,	LPC_NIRQ8);	/* IRQ8 inactive */
338 	outb(sc->sc_port+lpt_control,	LPC_NPSTB);	/* PSTB inactive */
339 	outb(sc->sc_port+lpt_pstb_ctrl,	LPC_EN_PSTB);	/* PSTB enable */
341 	sc->sc_irq = 0;
344 		sc->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
346 		if (sc->res_irq == NULL) {
348 					     sc->res_port);
351 		if (bus_setup_intr(dev, sc->res_irq, INTR_TYPE_TTY, NULL, lpt_intr,
352 				   sc, &sc->sc_ih)) {
354 					     sc->res_port);
356 					     sc->res_irq);
359 		sc->sc_irq = LP_HAS_IRQ | LP_USE_IRQ | LP_ENABLE_IRQ;
365 	cdev->si_drv1 = sc;
368 	cdev->si_drv1 = sc;
382 	struct lpt_softc *sc = dev->si_drv1;
386 	if (sc->sc_port == 0)
389 	if (sc->sc_state) {
390 		lprintf(("lp: still open %x\n", sc->sc_state));
393 		sc->sc_state |= INIT;
395 	sc->sc_flags = dev2unit(dev);
398 	if (sc->sc_flags & LP_BYPASS) {
399 		sc->sc_state = OPEN;
404 	lprintf(("lp flags 0x%x\n", sc->sc_flags));
405 	port = sc->sc_port;
408 	if (sc->sc_irq & LP_ENABLE_IRQ)
409 		sc->sc_irq |= LP_USE_IRQ;
411 		sc->sc_irq &= ~LP_USE_IRQ;
414 	sc->sc_state = OPEN;
415 	sc->sc_inbuf = malloc(BUFSIZE, M_DEVBUF, M_WAITOK);
416 	sc->sc_xfercnt = 0;
420 	lprintf(("irq %x\n", sc->sc_irq));
421 	if (sc->sc_irq & LP_USE_IRQ) {
422 		sc->sc_state |= TOUT;
423 		sc->sc_backoff = hz / LPTOUTINITIAL;
424 		callout_reset(&sc->timer, sc->sc_backoff, lptout, sc);
434 	struct lpt_softc *sc = arg;
437 	lprintf(("T %x ", inb(sc->sc_port+lpt_status)));
438 	if (sc->sc_state & OPEN) {
439 		sc->sc_backoff++;
440 		if (sc->sc_backoff > hz/LPTOUTMAX)
441 			sc->sc_backoff = sc->sc_backoff > hz/LPTOUTMAX;
442 		callout_reset(&sc->timer, sc->sc_backoff, lptout, sc);
444 		sc->sc_state &= ~TOUT;
446 	if (sc->sc_state & ERROR)
447 		sc->sc_state &= ~ERROR;
452 	if (sc->sc_xfercnt) {
454 		lpt_intr(sc);
457 		sc->sc_state &= ~OBUSY;
458 		wakeup(sc);
471 	struct lpt_softc *sc = dev->si_drv1;
473 	if(sc->sc_flags & LP_BYPASS)
476 	sc->sc_state &= ~OPEN;
477 	free(sc->sc_inbuf, M_DEVBUF);
480 	sc->sc_state = 0;
481 	sc->sc_xfercnt = 0;
495 pushbytes(struct lpt_softc * sc)
499 	int port = sc->sc_port;
503 	while (sc->sc_xfercnt > 0) {
505 		ch = *(sc->sc_cp);
506 		sc->sc_cp++;
507 		sc->sc_xfercnt--;
529 				err = tsleep(sc, LPPRI,
559 	struct lpt_softc *sc = dev->si_drv1;
561 	if(sc->sc_flags & LP_BYPASS) {
566 	sc->sc_state &= ~INTERRUPTED;
568 		sc->sc_cp = sc->sc_inbuf;
569 		uiomove(sc->sc_cp, n, uio);
570 		sc->sc_xfercnt = n ;
571 		while ((sc->sc_xfercnt > 0)&&(sc->sc_irq & LP_USE_IRQ)) {
575 			if ((sc->sc_state & OBUSY) == 0){
576 				lprintf(("\nC %d. ", sc->sc_xfercnt));
578 				lpt_intr(sc);
582 			if (sc->sc_state & OBUSY)
583 				if ((err = tsleep (sc,
585 					sc->sc_state |= INTERRUPTED;
590 		if(!(sc->sc_irq & LP_USE_IRQ) && (sc->sc_xfercnt)) {
592 			if((err = pushbytes(sc)))
615 	struct lpt_softc *sc = dev->si_drv1;
620 		if(sc->sc_irq & LP_HAS_IRQ) {
630 			old_sc_irq = sc->sc_irq;
632 				sc->sc_irq &= (~LP_ENABLE_IRQ);
634 				sc->sc_irq |= LP_ENABLE_IRQ;
635 			if (old_sc_irq != sc->sc_irq )
638 					(sc->sc_irq & LP_ENABLE_IRQ)?