syscons_cbus.c revision 105320
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 * $FreeBSD: head/sys/pc98/cbus/syscons_cbus.c 105320 2002-10-17 12:54:51Z nyan $ 27 */ 28 29#include "opt_syscons.h" 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/module.h> 35#include <sys/bus.h> 36#include <sys/cons.h> 37#include <sys/consio.h> 38 39#include <machine/clock.h> 40 41#include <pc98/pc98/pc98.h> 42#include <pc98/pc98/pc98_machdep.h> 43 44#include <dev/syscons/syscons.h> 45 46#include <i386/isa/timerreg.h> 47 48#include <isa/isavar.h> 49 50static devclass_t sc_devclass; 51 52static sc_softc_t main_softc; 53 54static void 55scidentify (driver_t *driver, device_t parent) 56{ 57 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0); 58} 59 60static int 61scprobe(device_t dev) 62{ 63 /* No pnp support */ 64 if (isa_get_vendorid(dev)) 65 return (ENXIO); 66 67 device_set_desc(dev, "System console"); 68 return sc_probe_unit(device_get_unit(dev), device_get_flags(dev)); 69} 70 71static int 72scattach(device_t dev) 73{ 74 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev)); 75} 76 77static int sc_cur_scr; 78 79static int 80scsuspend(device_t dev) 81{ 82#ifndef SC_NO_SUSPEND_VTYSWITCH 83 int retry = 10; 84 static int dummy; 85 sc_softc_t *sc; 86 87 sc = &main_softc; 88 sc_cur_scr = sc->cur_scp->index; 89 do { 90 sc_switch_scr(sc, 0); 91 if (!sc->switch_in_progress) { 92 break; 93 } 94 tsleep(&dummy, 0, "scsuspend", 100); 95 } while (retry--); 96 97#endif 98 return (0); 99} 100 101static int 102scresume(device_t dev) 103{ 104#ifndef SC_NO_SUSPEND_VTYSWITCH 105 sc_softc_t *sc; 106 107 sc = &main_softc; 108 sc_switch_scr(sc, sc_cur_scr); 109 110#endif 111 return (0); 112} 113 114int 115sc_max_unit(void) 116{ 117 return devclass_get_maxunit(sc_devclass); 118} 119 120sc_softc_t 121*sc_get_softc(int unit, int flags) 122{ 123 sc_softc_t *sc; 124 125 if (unit < 0) 126 return NULL; 127 if (flags & SC_KERNEL_CONSOLE) { 128 /* FIXME: clear if it is wired to another unit! */ 129 sc = &main_softc; 130 } else { 131 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit)); 132 if (sc == NULL) 133 return NULL; 134 } 135 sc->unit = unit; 136 if (!(sc->flags & SC_INIT_DONE)) { 137 sc->keyboard = -1; 138 sc->adapter = -1; 139 sc->mouse_char = SC_MOUSE_CHAR; 140 } 141 return sc; 142} 143 144sc_softc_t 145*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd) 146{ 147 sc_softc_t *sc; 148 int units; 149 int i; 150 151 sc = &main_softc; 152 if (((adp == NULL) || (adp == sc->adp)) 153 && ((kbd == NULL) || (kbd == sc->kbd))) 154 return sc; 155 units = devclass_get_maxunit(sc_devclass); 156 for (i = 0; i < units; ++i) { 157 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i)); 158 if (sc == NULL) 159 continue; 160 if (((adp == NULL) || (adp == sc->adp)) 161 && ((kbd == NULL) || (kbd == sc->kbd))) 162 return sc; 163 } 164 return NULL; 165} 166 167int 168sc_get_cons_priority(int *unit, int *flags) 169{ 170 int disabled; 171 const char *at; 172 int u, f; 173 174 *unit = -1; 175 for (u = 0; u < 16; u++) { 176 if ((resource_int_value(SC_DRIVER_NAME, u, "disabled", 177 &disabled) == 0) && disabled) 178 continue; 179 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0) 180 continue; 181 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) 182 f = 0; 183 if (f & SC_KERNEL_CONSOLE) { 184 /* the user designates this unit to be the console */ 185 *unit = u; 186 *flags = f; 187 break; 188 } 189 if (*unit < 0) { 190 /* ...otherwise remember the first found unit */ 191 *unit = u; 192 *flags = f; 193 } 194 } 195 if (*unit < 0) 196 return CN_DEAD; 197 return CN_INTERNAL; 198} 199 200void 201sc_get_bios_values(bios_values_t *values) 202{ 203 values->cursor_start = 15; 204 values->cursor_end = 16; 205 values->shift_state = 0; 206 if (pc98_machine_type & M_8M) 207 values->bell_pitch = BELL_PITCH_8M; 208 else 209 values->bell_pitch = BELL_PITCH_5M; 210} 211 212int 213sc_tone(int herz) 214{ 215 int pitch; 216 217 if (herz) { 218 /* enable counter 1 */ 219 outb(0x35, inb(0x35) & 0xf7); 220 /* set command for counter 1, 2 byte write */ 221 if (acquire_timer1(TIMER_16BIT | TIMER_SQWAVE)) 222 return EBUSY; 223 /* set pitch */ 224 pitch = timer_freq/herz; 225 outb(TIMER_CNTR1, pitch); 226 outb(TIMER_CNTR1, pitch >> 8); 227 } else { 228 /* disable counter 1 */ 229 outb(0x35, inb(0x35) | 0x08); 230 release_timer1(); 231 } 232 return 0; 233} 234 235static device_method_t sc_methods[] = { 236 DEVMETHOD(device_identify, scidentify), 237 DEVMETHOD(device_probe, scprobe), 238 DEVMETHOD(device_attach, scattach), 239 DEVMETHOD(device_suspend, scsuspend), 240 DEVMETHOD(device_resume, scresume), 241 { 0, 0 } 242}; 243 244static driver_t sc_driver = { 245 SC_DRIVER_NAME, 246 sc_methods, 247 sizeof(sc_softc_t), 248}; 249 250DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0); 251