syscons_cbus.c revision 105712
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 105712 2002-10-22 15:22:49Z 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 77#ifndef SC_NO_SUSPEND_VTYSWITCH 78static int sc_cur_scr; 79#endif 80 81static int 82scsuspend(device_t dev) 83{ 84#ifndef SC_NO_SUSPEND_VTYSWITCH 85 int retry = 10; 86 static int dummy; 87 sc_softc_t *sc; 88 89 sc = &main_softc; 90 sc_cur_scr = sc->cur_scp->index; 91 do { 92 sc_switch_scr(sc, 0); 93 if (!sc->switch_in_progress) { 94 break; 95 } 96 tsleep(&dummy, 0, "scsuspend", 100); 97 } while (retry--); 98 99#endif 100 return (0); 101} 102 103static int 104scresume(device_t dev) 105{ 106#ifndef SC_NO_SUSPEND_VTYSWITCH 107 sc_softc_t *sc; 108 109 sc = &main_softc; 110 sc_switch_scr(sc, sc_cur_scr); 111 112#endif 113 return (0); 114} 115 116int 117sc_max_unit(void) 118{ 119 return devclass_get_maxunit(sc_devclass); 120} 121 122sc_softc_t 123*sc_get_softc(int unit, int flags) 124{ 125 sc_softc_t *sc; 126 127 if (unit < 0) 128 return NULL; 129 if (flags & SC_KERNEL_CONSOLE) { 130 /* FIXME: clear if it is wired to another unit! */ 131 sc = &main_softc; 132 } else { 133 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit)); 134 if (sc == NULL) 135 return NULL; 136 } 137 sc->unit = unit; 138 if (!(sc->flags & SC_INIT_DONE)) { 139 sc->keyboard = -1; 140 sc->adapter = -1; 141 sc->mouse_char = SC_MOUSE_CHAR; 142 } 143 return sc; 144} 145 146sc_softc_t 147*sc_find_softc(struct video_adapter *adp, struct keyboard *kbd) 148{ 149 sc_softc_t *sc; 150 int units; 151 int i; 152 153 sc = &main_softc; 154 if (((adp == NULL) || (adp == sc->adp)) 155 && ((kbd == NULL) || (kbd == sc->kbd))) 156 return sc; 157 units = devclass_get_maxunit(sc_devclass); 158 for (i = 0; i < units; ++i) { 159 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i)); 160 if (sc == NULL) 161 continue; 162 if (((adp == NULL) || (adp == sc->adp)) 163 && ((kbd == NULL) || (kbd == sc->kbd))) 164 return sc; 165 } 166 return NULL; 167} 168 169int 170sc_get_cons_priority(int *unit, int *flags) 171{ 172 int disabled; 173 const char *at; 174 int u, f; 175 176 *unit = -1; 177 for (u = 0; u < 16; u++) { 178 if ((resource_int_value(SC_DRIVER_NAME, u, "disabled", 179 &disabled) == 0) && disabled) 180 continue; 181 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0) 182 continue; 183 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) 184 f = 0; 185 if (f & SC_KERNEL_CONSOLE) { 186 /* the user designates this unit to be the console */ 187 *unit = u; 188 *flags = f; 189 break; 190 } 191 if (*unit < 0) { 192 /* ...otherwise remember the first found unit */ 193 *unit = u; 194 *flags = f; 195 } 196 } 197 if (*unit < 0) 198 return CN_DEAD; 199 return CN_INTERNAL; 200} 201 202void 203sc_get_bios_values(bios_values_t *values) 204{ 205 values->cursor_start = 15; 206 values->cursor_end = 16; 207 values->shift_state = 0; 208 if (pc98_machine_type & M_8M) 209 values->bell_pitch = BELL_PITCH_8M; 210 else 211 values->bell_pitch = BELL_PITCH_5M; 212} 213 214int 215sc_tone(int herz) 216{ 217 int pitch; 218 219 if (herz) { 220 /* enable counter 1 */ 221 outb(0x35, inb(0x35) & 0xf7); 222 /* set command for counter 1, 2 byte write */ 223 if (acquire_timer1(TIMER_16BIT | TIMER_SQWAVE)) 224 return EBUSY; 225 /* set pitch */ 226 pitch = timer_freq/herz; 227 outb(TIMER_CNTR1, pitch); 228 outb(TIMER_CNTR1, pitch >> 8); 229 } else { 230 /* disable counter 1 */ 231 outb(0x35, inb(0x35) | 0x08); 232 release_timer1(); 233 } 234 return 0; 235} 236 237static device_method_t sc_methods[] = { 238 DEVMETHOD(device_identify, scidentify), 239 DEVMETHOD(device_probe, scprobe), 240 DEVMETHOD(device_attach, scattach), 241 DEVMETHOD(device_suspend, scsuspend), 242 DEVMETHOD(device_resume, scresume), 243 { 0, 0 } 244}; 245 246static driver_t sc_driver = { 247 SC_DRIVER_NAME, 248 sc_methods, 249 sizeof(sc_softc_t), 250}; 251 252DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0); 253