| 1 | /*- |
| 2 | * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> |
| 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: src/sys/isa/syscons_isa.c,v 1.11.2.2 2001/08/01 10:42:28 yokota Exp $ |
| 27 | * $DragonFly: src/sys/bus/isa/syscons_isa.c,v 1.5 2004/08/02 23:20:28 dillon Exp $ |
| 28 | */ |
| 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/systimer.h> |
| 37 | #include <sys/bus.h> |
| 38 | #include <sys/cons.h> |
| 39 | |
| 40 | #include <machine/console.h> |
| 41 | |
| 42 | #ifdef __i386__ |
| 43 | |
| 44 | #include <machine/clock.h> |
| 45 | #include <machine/md_var.h> |
| 46 | #include <machine/pc/bios.h> |
| 47 | |
| 48 | #include <vm/vm.h> |
| 49 | #include <vm/pmap.h> |
| 50 | |
| 51 | #include <i386/isa/timerreg.h> |
| 52 | |
| 53 | #define BIOS_CLKED (1 << 6) |
| 54 | #define BIOS_NLKED (1 << 5) |
| 55 | #define BIOS_SLKED (1 << 4) |
| 56 | #define BIOS_ALKED 0 |
| 57 | |
| 58 | #endif /* __i386__ */ |
| 59 | |
| 60 | #include <dev/misc/syscons/syscons.h> |
| 61 | |
| 62 | #include "isareg.h" |
| 63 | #include "isavar.h" |
| 64 | |
| 65 | static devclass_t sc_devclass; |
| 66 | |
| 67 | static int scprobe(device_t dev); |
| 68 | static int scattach(device_t dev); |
| 69 | |
| 70 | static device_method_t sc_methods[] = { |
| 71 | DEVMETHOD(device_probe, scprobe), |
| 72 | DEVMETHOD(device_attach, scattach), |
| 73 | { 0, 0 } |
| 74 | }; |
| 75 | |
| 76 | static driver_t sc_driver = { |
| 77 | SC_DRIVER_NAME, |
| 78 | sc_methods, |
| 79 | sizeof(sc_softc_t), |
| 80 | }; |
| 81 | |
| 82 | static sc_softc_t main_softc; |
| 83 | |
| 84 | static int |
| 85 | scprobe(device_t dev) |
| 86 | { |
| 87 | /* No pnp support */ |
| 88 | if (isa_get_vendorid(dev)) |
| 89 | return (ENXIO); |
| 90 | |
| 91 | device_set_desc(dev, "System console"); |
| 92 | return sc_probe_unit(device_get_unit(dev), device_get_flags(dev)); |
| 93 | } |
| 94 | |
| 95 | static int |
| 96 | scattach(device_t dev) |
| 97 | { |
| 98 | return sc_attach_unit(device_get_unit(dev), device_get_flags(dev)); |
| 99 | } |
| 100 | |
| 101 | int |
| 102 | sc_max_unit(void) |
| 103 | { |
| 104 | return devclass_get_maxunit(sc_devclass); |
| 105 | } |
| 106 | |
| 107 | sc_softc_t |
| 108 | *sc_get_softc(int unit, int flags) |
| 109 | { |
| 110 | sc_softc_t *sc; |
| 111 | |
| 112 | if (unit < 0) |
| 113 | return NULL; |
| 114 | if (flags & SC_KERNEL_CONSOLE) { |
| 115 | /* FIXME: clear if it is wired to another unit! */ |
| 116 | sc = &main_softc; |
| 117 | } else { |
| 118 | sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit)); |
| 119 | if (sc == NULL) |
| 120 | return NULL; |
| 121 | } |
| 122 | sc->unit = unit; |
| 123 | if (!(sc->flags & SC_INIT_DONE)) { |
| 124 | sc->keyboard = -1; |
| 125 | sc->adapter = -1; |
| 126 | sc->cursor_char = SC_CURSOR_CHAR; |
| 127 | sc->mouse_char = SC_MOUSE_CHAR; |
| 128 | } |
| 129 | return sc; |
| 130 | } |
| 131 | |
| 132 | sc_softc_t |
| 133 | *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd) |
| 134 | { |
| 135 | sc_softc_t *sc; |
| 136 | int units; |
| 137 | int i; |
| 138 | |
| 139 | sc = &main_softc; |
| 140 | if (((adp == NULL) || (adp == sc->adp)) |
| 141 | && ((kbd == NULL) || (kbd == sc->kbd))) |
| 142 | return sc; |
| 143 | units = devclass_get_maxunit(sc_devclass); |
| 144 | for (i = 0; i < units; ++i) { |
| 145 | sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i)); |
| 146 | if (sc == NULL) |
| 147 | continue; |
| 148 | if (((adp == NULL) || (adp == sc->adp)) |
| 149 | && ((kbd == NULL) || (kbd == sc->kbd))) |
| 150 | return sc; |
| 151 | } |
| 152 | return NULL; |
| 153 | } |
| 154 | |
| 155 | int |
| 156 | sc_get_cons_priority(int *unit, int *flags) |
| 157 | { |
| 158 | int disabled; |
| 159 | int u, f; |
| 160 | int i; |
| 161 | |
| 162 | *unit = -1; |
| 163 | for (i = -1; (i = resource_locate(i, SC_DRIVER_NAME)) >= 0;) { |
| 164 | u = resource_query_unit(i); |
| 165 | if ((resource_int_value(SC_DRIVER_NAME, u, "disabled", |
| 166 | &disabled) == 0) && disabled) |
| 167 | continue; |
| 168 | if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) |
| 169 | f = 0; |
| 170 | if (f & SC_KERNEL_CONSOLE) { |
| 171 | /* the user designates this unit to be the console */ |
| 172 | *unit = u; |
| 173 | *flags = f; |
| 174 | break; |
| 175 | } |
| 176 | if (*unit < 0) { |
| 177 | /* ...otherwise remember the first found unit */ |
| 178 | *unit = u; |
| 179 | *flags = f; |
| 180 | } |
| 181 | } |
| 182 | if ((i < 0) && (*unit < 0)) |
| 183 | return CN_DEAD; |
| 184 | #if 0 |
| 185 | return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL); |
| 186 | #endif |
| 187 | return CN_INTERNAL; |
| 188 | } |
| 189 | |
| 190 | void |
| 191 | sc_get_bios_values(bios_values_t *values) |
| 192 | { |
| 193 | #ifdef __i386__ |
| 194 | u_int8_t shift; |
| 195 | |
| 196 | values->cursor_start = *(u_int8_t *)BIOS_PADDRTOVADDR(0x461); |
| 197 | values->cursor_end = *(u_int8_t *)BIOS_PADDRTOVADDR(0x460); |
| 198 | shift = *(u_int8_t *)BIOS_PADDRTOVADDR(0x417); |
| 199 | values->shift_state = ((shift & BIOS_CLKED) ? CLKED : 0) |
| 200 | | ((shift & BIOS_NLKED) ? NLKED : 0) |
| 201 | | ((shift & BIOS_SLKED) ? SLKED : 0) |
| 202 | | ((shift & BIOS_ALKED) ? ALKED : 0); |
| 203 | values->bell_pitch = BELL_PITCH; |
| 204 | #else /* !__i386__ */ |
| 205 | values->cursor_start = 0; |
| 206 | values->cursor_end = 32; |
| 207 | values->shift_state = 0; |
| 208 | values->bell_pitch = BELL_PITCH; |
| 209 | #endif /* __i386__ */ |
| 210 | } |
| 211 | |
| 212 | int |
| 213 | sc_tone(int herz) |
| 214 | { |
| 215 | return EBUSY; |
| 216 | #if 0 |
| 217 | /* XXX use sound device if available */ |
| 218 | #ifdef __i386__ |
| 219 | int pitch; |
| 220 | |
| 221 | if (herz) { |
| 222 | /* set command for counter 2, 2 byte write */ |
| 223 | if (acquire_timer2(TIMER_16BIT | TIMER_SQWAVE)) |
| 224 | return EBUSY; |
| 225 | /* set pitch */ |
| 226 | pitch = cputimer_freq/herz; |
| 227 | outb(TIMER_CNTR2, pitch); |
| 228 | outb(TIMER_CNTR2, pitch >> 8); |
| 229 | /* enable counter 2 output to speaker */ |
| 230 | outb(IO_PPI, inb(IO_PPI) | 3); |
| 231 | } else { |
| 232 | /* disable counter 2 output to speaker */ |
| 233 | if (release_timer2() == 0) |
| 234 | outb(IO_PPI, inb(IO_PPI) & 0xFC); |
| 235 | } |
| 236 | #endif /* __i386__ */ |
| 237 | |
| 238 | return 0; |
| 239 | #endif |
| 240 | } |
| 241 | |
| 242 | DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0); |