xref: /freebsd/sys/isa/syscons_isa.c (revision c864c67bad0bb6c6bf281bc34d8889d42418bd56)
18a997770SDoug Rabson /*-
28a997770SDoug Rabson  * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
38a997770SDoug Rabson  * All rights reserved.
48a997770SDoug Rabson  *
58a997770SDoug Rabson  * Redistribution and use in source and binary forms, with or without
68a997770SDoug Rabson  * modification, are permitted provided that the following conditions
78a997770SDoug Rabson  * are met:
88a997770SDoug Rabson  * 1. Redistributions of source code must retain the above copyright
98a997770SDoug Rabson  *    notice, this list of conditions and the following disclaimer as
108a997770SDoug Rabson  *    the first lines of this file unmodified.
118a997770SDoug Rabson  * 2. Redistributions in binary form must reproduce the above copyright
128a997770SDoug Rabson  *    notice, this list of conditions and the following disclaimer in the
138a997770SDoug Rabson  *    documentation and/or other materials provided with the distribution.
148a997770SDoug Rabson  *
158a997770SDoug Rabson  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
168a997770SDoug Rabson  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
178a997770SDoug Rabson  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
188a997770SDoug Rabson  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
198a997770SDoug Rabson  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
208a997770SDoug Rabson  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
218a997770SDoug Rabson  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
228a997770SDoug Rabson  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
238a997770SDoug Rabson  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
248a997770SDoug Rabson  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
258a997770SDoug Rabson  *
26c3aac50fSPeter Wemm  * $FreeBSD$
278a997770SDoug Rabson  */
288a997770SDoug Rabson 
298a997770SDoug Rabson #include "opt_syscons.h"
308a997770SDoug Rabson 
318a997770SDoug Rabson #include <sys/param.h>
328a997770SDoug Rabson #include <sys/systm.h>
338a997770SDoug Rabson #include <sys/kernel.h>
348a997770SDoug Rabson #include <sys/module.h>
358a997770SDoug Rabson #include <sys/bus.h>
36ce9edcf5SPoul-Henning Kamp #include <sys/cons.h>
3700d25f51SPoul-Henning Kamp #include <sys/kbio.h>
3800d25f51SPoul-Henning Kamp #include <sys/consio.h>
398a997770SDoug Rabson 
406e8394b8SKazutaka YOKOTA 
416182fdbdSPeter Wemm #ifdef __i386__
426e8394b8SKazutaka YOKOTA 
436e8394b8SKazutaka YOKOTA #include <machine/clock.h>
446e8394b8SKazutaka YOKOTA #include <machine/md_var.h>
456e8394b8SKazutaka YOKOTA #include <machine/pc/bios.h>
466e8394b8SKazutaka YOKOTA 
476e8394b8SKazutaka YOKOTA #include <vm/vm.h>
486e8394b8SKazutaka YOKOTA #include <vm/pmap.h>
496e8394b8SKazutaka YOKOTA 
506e8394b8SKazutaka YOKOTA #include <i386/isa/timerreg.h>
516e8394b8SKazutaka YOKOTA 
526e8394b8SKazutaka YOKOTA #define BIOS_CLKED	(1 << 6)
536e8394b8SKazutaka YOKOTA #define BIOS_NLKED	(1 << 5)
546e8394b8SKazutaka YOKOTA #define BIOS_SLKED	(1 << 4)
556e8394b8SKazutaka YOKOTA #define BIOS_ALKED	0
566e8394b8SKazutaka YOKOTA 
576e8394b8SKazutaka YOKOTA #endif /* __i386__ */
588a997770SDoug Rabson 
598a997770SDoug Rabson #include <dev/syscons/syscons.h>
608a997770SDoug Rabson 
618a997770SDoug Rabson #include <isa/isareg.h>
628a997770SDoug Rabson #include <isa/isavar.h>
638a997770SDoug Rabson 
646e8394b8SKazutaka YOKOTA static devclass_t	sc_devclass;
658a997770SDoug Rabson 
66e2f29c6eSKazutaka YOKOTA static sc_softc_t main_softc;
676e8394b8SKazutaka YOKOTA 
68c20ac811SPeter Wemm static void
69c20ac811SPeter Wemm scidentify (driver_t *driver, device_t parent)
70c20ac811SPeter Wemm {
71c20ac811SPeter Wemm 	BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
72c20ac811SPeter Wemm }
73c20ac811SPeter Wemm 
748a997770SDoug Rabson static int
758a997770SDoug Rabson scprobe(device_t dev)
768a997770SDoug Rabson {
77f7f2df54SDoug Rabson 	/* No pnp support */
78f7f2df54SDoug Rabson 	if (isa_get_vendorid(dev))
79f7f2df54SDoug Rabson 		return (ENXIO);
80f7f2df54SDoug Rabson 
818a997770SDoug Rabson 	device_set_desc(dev, "System console");
82062acdb7SDoug Rabson 	return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
838a997770SDoug Rabson }
848a997770SDoug Rabson 
858a997770SDoug Rabson static int
868a997770SDoug Rabson scattach(device_t dev)
878a997770SDoug Rabson {
88062acdb7SDoug Rabson 	return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
898a997770SDoug Rabson }
908a997770SDoug Rabson 
916e8394b8SKazutaka YOKOTA static int
926e8394b8SKazutaka YOKOTA scresume(device_t dev)
936e8394b8SKazutaka YOKOTA {
946e8394b8SKazutaka YOKOTA 	return sc_resume_unit(device_get_unit(dev));
956e8394b8SKazutaka YOKOTA }
966e8394b8SKazutaka YOKOTA 
976e8394b8SKazutaka YOKOTA int
986e8394b8SKazutaka YOKOTA sc_max_unit(void)
996e8394b8SKazutaka YOKOTA {
1006e8394b8SKazutaka YOKOTA 	return devclass_get_maxunit(sc_devclass);
1016e8394b8SKazutaka YOKOTA }
1026e8394b8SKazutaka YOKOTA 
1036e8394b8SKazutaka YOKOTA sc_softc_t
1046e8394b8SKazutaka YOKOTA *sc_get_softc(int unit, int flags)
1056e8394b8SKazutaka YOKOTA {
1066e8394b8SKazutaka YOKOTA 	sc_softc_t *sc;
1076e8394b8SKazutaka YOKOTA 
1088f8e5879SPeter Wemm 	if (unit < 0)
1096e8394b8SKazutaka YOKOTA 		return NULL;
1106e8394b8SKazutaka YOKOTA 	if (flags & SC_KERNEL_CONSOLE) {
1116e8394b8SKazutaka YOKOTA 		/* FIXME: clear if it is wired to another unit! */
112e2f29c6eSKazutaka YOKOTA 		sc = &main_softc;
1136e8394b8SKazutaka YOKOTA 	} else {
114ffc1d9bdSKazutaka YOKOTA 	        sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
1158f8e5879SPeter Wemm 		if (sc == NULL)
1168f8e5879SPeter Wemm 			return NULL;
117e2f29c6eSKazutaka YOKOTA 	}
1186e8394b8SKazutaka YOKOTA 	sc->unit = unit;
119e2f29c6eSKazutaka YOKOTA 	if (!(sc->flags & SC_INIT_DONE)) {
1206e8394b8SKazutaka YOKOTA 		sc->keyboard = -1;
1216e8394b8SKazutaka YOKOTA 		sc->adapter = -1;
12209132359SKazutaka YOKOTA 		sc->cursor_char = SC_CURSOR_CHAR;
123e2f29c6eSKazutaka YOKOTA 		sc->mouse_char = SC_MOUSE_CHAR;
1246e8394b8SKazutaka YOKOTA 	}
1256e8394b8SKazutaka YOKOTA 	return sc;
1266e8394b8SKazutaka YOKOTA }
1276e8394b8SKazutaka YOKOTA 
1286e8394b8SKazutaka YOKOTA sc_softc_t
1296e8394b8SKazutaka YOKOTA *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
1306e8394b8SKazutaka YOKOTA {
1316e8394b8SKazutaka YOKOTA 	sc_softc_t *sc;
1326e8394b8SKazutaka YOKOTA 	int units;
1336e8394b8SKazutaka YOKOTA 	int i;
1346e8394b8SKazutaka YOKOTA 
1356e8394b8SKazutaka YOKOTA 	sc = &main_softc;
1366e8394b8SKazutaka YOKOTA 	if (((adp == NULL) || (adp == sc->adp))
1376e8394b8SKazutaka YOKOTA 	    && ((kbd == NULL) || (kbd == sc->kbd)))
1386e8394b8SKazutaka YOKOTA 		return sc;
1396e8394b8SKazutaka YOKOTA 	units = devclass_get_maxunit(sc_devclass);
1406e8394b8SKazutaka YOKOTA 	for (i = 0; i < units; ++i) {
141ffc1d9bdSKazutaka YOKOTA 	        sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
1426e8394b8SKazutaka YOKOTA 		if (sc == NULL)
1436e8394b8SKazutaka YOKOTA 			continue;
1446e8394b8SKazutaka YOKOTA 		if (((adp == NULL) || (adp == sc->adp))
1456e8394b8SKazutaka YOKOTA 		    && ((kbd == NULL) || (kbd == sc->kbd)))
1466e8394b8SKazutaka YOKOTA 			return sc;
1476e8394b8SKazutaka YOKOTA 	}
1486e8394b8SKazutaka YOKOTA 	return NULL;
1496e8394b8SKazutaka YOKOTA }
1506e8394b8SKazutaka YOKOTA 
1516e8394b8SKazutaka YOKOTA int
1526e8394b8SKazutaka YOKOTA sc_get_cons_priority(int *unit, int *flags)
1536e8394b8SKazutaka YOKOTA {
1546e8394b8SKazutaka YOKOTA 	int disabled;
155c864c67bSPeter Wemm 	const char *at;
1566e8394b8SKazutaka YOKOTA 	int u, f;
1576e8394b8SKazutaka YOKOTA 
1586e8394b8SKazutaka YOKOTA 	*unit = -1;
15981e3fd99SPeter Wemm 	for (u = 0; u < 16; u++) {
1606e8394b8SKazutaka YOKOTA 		if ((resource_int_value(SC_DRIVER_NAME, u, "disabled",
1616e8394b8SKazutaka YOKOTA 					&disabled) == 0) && disabled)
1626e8394b8SKazutaka YOKOTA 			continue;
16381e3fd99SPeter Wemm 		if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
16481e3fd99SPeter Wemm 			continue;
1656e8394b8SKazutaka YOKOTA 		if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
1666e8394b8SKazutaka YOKOTA 			f = 0;
1676e8394b8SKazutaka YOKOTA 		if (f & SC_KERNEL_CONSOLE) {
1686e8394b8SKazutaka YOKOTA 			/* the user designates this unit to be the console */
1696e8394b8SKazutaka YOKOTA 			*unit = u;
1706e8394b8SKazutaka YOKOTA 			*flags = f;
1716e8394b8SKazutaka YOKOTA 			break;
1726e8394b8SKazutaka YOKOTA 		}
1736e8394b8SKazutaka YOKOTA 		if (*unit < 0) {
1746e8394b8SKazutaka YOKOTA 			/* ...otherwise remember the first found unit */
1756e8394b8SKazutaka YOKOTA 			*unit = u;
1766e8394b8SKazutaka YOKOTA 			*flags = f;
1776e8394b8SKazutaka YOKOTA 		}
1786e8394b8SKazutaka YOKOTA 	}
17981e3fd99SPeter Wemm 	if (*unit < 0)
1806e8394b8SKazutaka YOKOTA 		return CN_DEAD;
1816e8394b8SKazutaka YOKOTA #if 0
1826e8394b8SKazutaka YOKOTA 	return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL);
1836e8394b8SKazutaka YOKOTA #endif
1846e8394b8SKazutaka YOKOTA 	return CN_INTERNAL;
1856e8394b8SKazutaka YOKOTA }
1866e8394b8SKazutaka YOKOTA 
1876e8394b8SKazutaka YOKOTA void
1886e8394b8SKazutaka YOKOTA sc_get_bios_values(bios_values_t *values)
1896e8394b8SKazutaka YOKOTA {
1906e8394b8SKazutaka YOKOTA #ifdef __i386__
1916e8394b8SKazutaka YOKOTA 	u_int8_t shift;
1926e8394b8SKazutaka YOKOTA 
1936e8394b8SKazutaka YOKOTA 	values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461);
1946e8394b8SKazutaka YOKOTA 	values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460);
1956e8394b8SKazutaka YOKOTA 	shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417);
1966e8394b8SKazutaka YOKOTA 	values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0)
1976e8394b8SKazutaka YOKOTA 			       | ((shift & BIOS_NLKED) ? NLKED : 0)
1986e8394b8SKazutaka YOKOTA 			       | ((shift & BIOS_SLKED) ? SLKED : 0)
1996e8394b8SKazutaka YOKOTA 			       | ((shift & BIOS_ALKED) ? ALKED : 0);
2006e8394b8SKazutaka YOKOTA 	values->bell_pitch = BELL_PITCH;
2016e8394b8SKazutaka YOKOTA #else /* !__i386__ */
2026e8394b8SKazutaka YOKOTA 	values->cursor_start = 0;
2036e8394b8SKazutaka YOKOTA 	values->cursor_end = 32;
2046e8394b8SKazutaka YOKOTA 	values->shift_state = 0;
2056e8394b8SKazutaka YOKOTA 	values->bell_pitch = BELL_PITCH;
2066e8394b8SKazutaka YOKOTA #endif /* __i386__ */
2076e8394b8SKazutaka YOKOTA }
2086e8394b8SKazutaka YOKOTA 
2096e8394b8SKazutaka YOKOTA int
2106e8394b8SKazutaka YOKOTA sc_tone(int herz)
2116e8394b8SKazutaka YOKOTA {
2126e8394b8SKazutaka YOKOTA #ifdef __i386__
2136e8394b8SKazutaka YOKOTA 	int pitch;
2146e8394b8SKazutaka YOKOTA 
2156e8394b8SKazutaka YOKOTA 	if (herz) {
2166e8394b8SKazutaka YOKOTA 		/* set command for counter 2, 2 byte write */
2176e8394b8SKazutaka YOKOTA 		if (acquire_timer2(TIMER_16BIT | TIMER_SQWAVE))
2186e8394b8SKazutaka YOKOTA 			return EBUSY;
2196e8394b8SKazutaka YOKOTA 		/* set pitch */
2206e8394b8SKazutaka YOKOTA 		pitch = timer_freq/herz;
2216e8394b8SKazutaka YOKOTA 		outb(TIMER_CNTR2, pitch);
2226e8394b8SKazutaka YOKOTA 		outb(TIMER_CNTR2, pitch >> 8);
2236e8394b8SKazutaka YOKOTA 		/* enable counter 2 output to speaker */
2246e8394b8SKazutaka YOKOTA 		outb(IO_PPI, inb(IO_PPI) | 3);
2256e8394b8SKazutaka YOKOTA 	} else {
2266e8394b8SKazutaka YOKOTA 		/* disable counter 2 output to speaker */
2276e8394b8SKazutaka YOKOTA 		outb(IO_PPI, inb(IO_PPI) & 0xFC);
2286e8394b8SKazutaka YOKOTA 		release_timer2();
2296e8394b8SKazutaka YOKOTA 	}
2306e8394b8SKazutaka YOKOTA #endif /* __i386__ */
2316e8394b8SKazutaka YOKOTA 
2326e8394b8SKazutaka YOKOTA 	return 0;
2336e8394b8SKazutaka YOKOTA }
2346e8394b8SKazutaka YOKOTA 
235c20ac811SPeter Wemm static device_method_t sc_methods[] = {
236c20ac811SPeter Wemm 	DEVMETHOD(device_identify,	scidentify),
237c20ac811SPeter Wemm 	DEVMETHOD(device_probe,         scprobe),
238c20ac811SPeter Wemm 	DEVMETHOD(device_attach,        scattach),
239c20ac811SPeter Wemm 	DEVMETHOD(device_resume,        scresume),
240c20ac811SPeter Wemm 	{ 0, 0 }
241c20ac811SPeter Wemm };
242c20ac811SPeter Wemm 
243c20ac811SPeter Wemm static driver_t sc_driver = {
244c20ac811SPeter Wemm 	SC_DRIVER_NAME,
245c20ac811SPeter Wemm 	sc_methods,
246c20ac811SPeter Wemm 	sizeof(sc_softc_t),
247c20ac811SPeter Wemm };
248c20ac811SPeter Wemm 
2498a997770SDoug Rabson DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);
250