1/*- 2 * Copyright (c) 1999 FreeBSD(98) Porting Team. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include "opt_syscons.h" 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36#include <sys/bus.h> 37#include <sys/cons.h> 38#include <sys/consio.h> 39#include <sys/sysctl.h> 40 41#include <machine/clock.h> 42 43#include <pc98/pc98/pc98_machdep.h> 44 45#include <dev/syscons/syscons.h> 46 47#include <isa/isavar.h> 48 49static devclass_t sc_devclass; 50 51static sc_softc_t main_softc; 52 53static void 54scidentify(driver_t *driver, device_t parent) 55{ 56 57 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0); 58} 59 60static int 61scprobe(device_t dev) 62{ 63 64 /* No pnp support */ 65 if (isa_get_vendorid(dev)) 66 return (ENXIO); 67 68 device_set_desc(dev, "System console"); 69 return (sc_probe_unit(device_get_unit(dev), device_get_flags(dev))); 70} 71 72static int 73scattach(device_t dev) 74{ 75 76 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev)); 77} 78 79int 80sc_max_unit(void) 81{ 82 83 return (devclass_get_maxunit(sc_devclass)); 84} 85 86sc_softc_t 87*sc_get_softc(int unit, int flags) 88{ 89 sc_softc_t *sc; 90 91 if (unit < 0) 92 return (NULL); 93 if ((flags & SC_KERNEL_CONSOLE) != 0) { 94 /* FIXME: clear if it is wired to another unit! */ 95 sc = &main_softc; 96 } else { 97 sc = device_get_softc(devclass_get_device(sc_devclass, unit)); 98 if (sc == NULL) 99 return (NULL); 100 } 101 sc->unit = unit; 102 if ((sc->flags & SC_INIT_DONE) == 0) { 103 sc->keyboard = -1; 104 sc->adapter = -1; 105 sc->mouse_char = SC_MOUSE_CHAR; 106 } 107 return (sc); 108} 109 110sc_softc_t 111*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd) 112{ 113 sc_softc_t *sc; 114 int i; 115 int units; 116 117 sc = &main_softc; 118 if ((adp == NULL || adp == sc->adp) && 119 (kbd == NULL || kbd == sc->kbd)) 120 return (sc); 121 units = devclass_get_maxunit(sc_devclass); 122 for (i = 0; i < units; ++i) { 123 sc = device_get_softc(devclass_get_device(sc_devclass, i)); 124 if (sc == NULL) 125 continue; 126 if ((adp == NULL || adp == sc->adp) && 127 (kbd == NULL || kbd == sc->kbd)) 128 return (sc); 129 } 130 return (NULL); 131} 132 133int 134sc_get_cons_priority(int *unit, int *flags) 135{ 136 const char *at; 137 int f, u; 138 139 *unit = -1; 140 for (u = 0; u < 16; u++) { 141 if (resource_disabled(SC_DRIVER_NAME, u)) 142 continue; 143 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0) 144 continue; 145 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) 146 f = 0; 147 if (f & SC_KERNEL_CONSOLE) { 148 /* the user designates this unit to be the console */ 149 *unit = u; 150 *flags = f; 151 break; 152 } 153 if (*unit < 0) { 154 /* ...otherwise remember the first found unit */ 155 *unit = u; 156 *flags = f; 157 } 158 } 159 if (*unit < 0) { 160 *unit = 0; 161 *flags = 0; 162 } 163 return (CN_INTERNAL); 164} 165 166void 167sc_get_bios_values(bios_values_t *values) 168{ 169 values->cursor_start = 15; 170 values->cursor_end = 16; 171 values->shift_state = 0; 172 values->bell_pitch = BELL_PITCH; 173} 174 175int 176sc_tone(int herz) 177{ 178 179 if (herz) { 180 if (timer_spkr_acquire()) 181 return (EBUSY); 182 timer_spkr_setfreq(herz); 183 } else 184 timer_spkr_release(); 185 186 return (0); 187} 188 189static device_method_t sc_methods[] = { 190 DEVMETHOD(device_identify, scidentify), 191 DEVMETHOD(device_probe, scprobe), 192 DEVMETHOD(device_attach, scattach), 193 { 0, 0 } 194}; 195 196static driver_t sc_driver = { 197 SC_DRIVER_NAME, 198 sc_methods, 199 sizeof(sc_softc_t), 200}; 201 202DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0); 203