dev/ppbus/lpt.c

62  * Updated for ppbus by Nicolas Souchu
82 #include <dev/ppbus/lptio.h>
83 #include <dev/ppbus/ppbconf.h>
84 #include <dev/ppbus/ppb_1284.h>
85 #include <dev/ppbus/lpt.h>
87 #include <dev/ppbus/ppbio.h>
172 #define	NOT_READY(ppbus) ((ppb_rstr(ppbus)^LPS_INVERT)&LPS_MASK)
197 	device_t ppbus = device_get_parent(dev);
205 	ppb_assert_locked(ppbus);
209 	error = ppb_request_bus(ppbus, dev, how);
218 	device_t ppbus = device_get_parent(dev);
222 	ppb_assert_locked(ppbus);
224 		error = ppb_release_bus(ppbus, dev);
235 lpt_port_test(device_t ppbus, u_char data, u_char mask)
240 	ppb_wdtr(ppbus, data);
244 		temp = ppb_rdtr(ppbus) & mask;
301 	device_t ppbus = device_get_parent(dev);
315 	ppb_lock(ppbus);
317 		ppb_unlock(ppbus);
318 		device_printf(dev, "cannot alloc ppbus (%d)!\n", error);
323 		if (!lpt_port_test(ppbus, testbyte[i], 0xff)) {
329 	ppb_wdtr(ppbus, 0);
330 	ppb_wctr(ppbus, 0);
333 	ppb_unlock(ppbus);
367 	device_t ppbus = device_get_parent(dev);
373 	ppb_init_callout(ppbus, &sc->sc_timer, 0);
375 	ppb_lock(ppbus);
377 		ppb_unlock(ppbus);
378 		device_printf(dev, "cannot alloc ppbus (%d)!\n", error);
382 	ppb_wctr(ppbus, LPC_NINIT);
384 	ppb_unlock(ppbus);
426 	device_t ppbus = device_get_parent(dev);
430 	ppb_lock(ppbus);
432 	ppb_unlock(ppbus);
450 	device_t ppbus;
452 	ppbus = device_get_parent(dev);
453 	ppb_assert_locked(ppbus);
454 	lprintf(("T %x ", ppb_rstr(ppbus)));
489 	device_t ppbus;
495 	ppbus = device_get_parent(lptdev);
497 	ppb_lock(ppbus);
501 		ppb_unlock(ppbus);
511 		ppb_unlock(ppbus);
515 	/* request the ppbus only if we don't have it already */
519 		ppb_unlock(ppbus);
536 			ppb_wctr(ppbus, 0);
542 	ppb_wctr(ppbus, LPC_SEL|LPC_NINIT);
549 			lprintf(("status %x\n", ppb_rstr(ppbus)));
553 			ppb_unlock(ppbus);
558 		if (ppb_sleep(ppbus, lptdev, LPPRI | PCATCH, "lptinit",
562 			ppb_unlock(ppbus);
567 	} while ((ppb_rstr(ppbus) &
579 	ppb_wctr(ppbus, sc->sc_control);
593 	/* release the ppbus */
595 	ppb_unlock(ppbus);
612 	device_t ppbus = device_get_parent(lptdev);
615 	ppb_lock(ppbus);
620 		ppb_unlock(ppbus);
626 		while ((ppb_rstr(ppbus) &
630 			if (ppb_sleep(ppbus, lptdev, LPPRI | PCATCH, "lpclose",
636 	ppb_wctr(ppbus, LPC_NINIT);
646 	ppb_unlock(ppbus);
663 	device_t ppbus = device_get_parent(dev);
667 	ppb_assert_locked(ppbus);
681 		for (spin = 0; NOT_READY(ppbus) && spin < MAX_SPIN; ++spin)
685 			while (NOT_READY(ppbus)) {
696 				err = ppb_sleep(ppbus, dev, LPPRI,
705 		ppb_wdtr(ppbus, ch);
707 		ppb_wctr(ppbus, sc->sc_control|LPC_STB);
708 		ppb_wctr(ppbus, sc->sc_control);
723 	device_t ppbus = device_get_parent(lptdev);
731 	ppb_lock(ppbus);
732 	if ((error = ppb_1284_negociate(ppbus, PPB_NIBBLE, 0))) {
733 		ppb_unlock(ppbus);
740 		if ((error = ppb_1284_read(ppbus, PPB_NIBBLE,
749 		ppb_unlock(ppbus);
751 		ppb_lock(ppbus);
757 	ppb_1284_terminate(ppbus);
758 	ppb_unlock(ppbus);
776 	device_t ppbus = device_get_parent(lptdev);
783 	/* request the ppbus only if we don't have it already */
784 	ppb_lock(ppbus);
786 		ppb_unlock(ppbus);
793 		ppb_unlock(ppbus);
795 		ppb_lock(ppbus);
802 			err = ppb_write(ppbus, sc->sc_cp,
812 				ppb_unlock(ppbus);
821 				ppb_unlock(ppbus);
834 				if ((err = ppb_sleep(ppbus, lptdev,
837 					ppb_unlock(ppbus);
849 				ppb_unlock(ppbus);
855 	/* we have not been interrupted, release the ppbus */
857 	ppb_unlock(ppbus);
873 	device_t ppbus = device_get_parent(lptdev);
884 	     ((sts=ppb_rstr(ppbus)) & RDY_MASK) != LP_READY; i++) ;
893 			ppb_wdtr(ppbus, *sc->sc_cp++) ;
894 			ppb_wctr(ppbus, sc->sc_control|LPC_STB);
896 			ppb_wctr(ppbus, sc->sc_control);
927 	device_t ppbus;
932 		ppbus = device_get_parent(sc->sc_dev);
933 		ppb_lock(ppbus);
976 		ppb_unlock(ppbus);
1001 DRIVER_MODULE(lpt, ppbus, lpt_driver, lpt_devclass, 0, 0);
1002 MODULE_DEPEND(lpt, ppbus, 1, 1, 1);