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 */ 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/systimer.h> 36 #include <sys/bus.h> 37 #include <sys/cons.h> 38 39 #include <machine/console.h> 40 #include <machine/framebuffer.h> 41 42 #include <dev/misc/syscons/syscons.h> 43 44 static devclass_t sc_devclass; 45 46 static void scidentify(driver_t *driver, device_t parent); 47 static int scprobe(device_t dev); 48 static int scattach(device_t dev); 49 50 static device_method_t sc_methods[] = { 51 DEVMETHOD(device_identify, scidentify), 52 DEVMETHOD(device_probe, scprobe), 53 DEVMETHOD(device_attach, scattach), 54 DEVMETHOD_END 55 }; 56 57 static driver_t sc_driver = { 58 SC_DRIVER_NAME, 59 sc_methods, 60 sizeof(sc_softc_t), 61 }; 62 63 static sc_softc_t main_softc; 64 65 static void 66 scidentify(driver_t *driver, device_t parent) 67 { 68 device_t child; 69 int i, u; 70 int f; 71 72 for (i = -1; (i = resource_locate(i, SC_DRIVER_NAME)) >= 0;) { 73 u = resource_query_unit(i); 74 if (u < 0) 75 continue; 76 if (resource_disabled(SC_DRIVER_NAME, u)) 77 continue; 78 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) 79 f = 0; 80 child = BUS_ADD_CHILD(parent, parent, 0, "sc", u); 81 if (child == NULL) 82 panic("%s", __func__); 83 device_set_flags(child, f); 84 } 85 } 86 87 static int 88 scprobe(device_t dev) 89 { 90 device_set_desc(dev, "System console"); 91 return sc_probe_unit(device_get_unit(dev), device_get_flags(dev)); 92 } 93 94 static int 95 scattach(device_t dev) 96 { 97 return sc_attach_unit(device_get_unit(dev), device_get_flags(dev)); 98 } 99 100 int 101 sc_max_unit(void) 102 { 103 return devclass_get_maxunit(sc_devclass); 104 } 105 106 sc_softc_t * 107 sc_get_softc(int unit, int flags) 108 { 109 sc_softc_t *sc; 110 111 if (unit < 0) 112 return NULL; 113 if (flags & SC_KERNEL_CONSOLE) { 114 /* FIXME: clear if it is wired to another unit! */ 115 sc = &main_softc; 116 } else { 117 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit)); 118 if (sc == NULL) 119 return NULL; 120 } 121 sc->unit = unit; 122 if (!(sc->flags & SC_INIT_DONE)) { 123 sc->keyboard = -1; 124 sc->adapter = -1; 125 sc->cursor_char = SC_CURSOR_CHAR; 126 sc->mouse_char = SC_MOUSE_CHAR; 127 } 128 return sc; 129 } 130 131 sc_softc_t * 132 sc_find_softc(struct video_adapter *adp, struct keyboard *kbd) 133 { 134 sc_softc_t *sc; 135 int units; 136 int i; 137 138 sc = &main_softc; 139 if (((adp == NULL) || (adp == sc->adp)) 140 && ((kbd == NULL) || (kbd == sc->kbd))) 141 return sc; 142 units = devclass_get_maxunit(sc_devclass); 143 for (i = 0; i < units; ++i) { 144 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i)); 145 if (sc == NULL) 146 continue; 147 if (((adp == NULL) || (adp == sc->adp)) 148 && ((kbd == NULL) || (kbd == sc->kbd))) 149 return sc; 150 } 151 return NULL; 152 } 153 154 int 155 sc_get_cons_priority(int *unit, int *flags) 156 { 157 int u, f; 158 int i; 159 int have_efi_fb = (probe_efi_fb(1) == 0); 160 161 *unit = -1; 162 for (i = -1; (i = resource_locate(i, SC_DRIVER_NAME)) >= 0;) { 163 u = resource_query_unit(i); 164 if (resource_disabled(SC_DRIVER_NAME, u)) 165 continue; 166 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0) 167 f = 0; 168 /* We prefer the EFI Framebuffer over other video devices */ 169 if (have_efi_fb && !(f & SC_EFI_FB)) 170 continue; 171 if (f & SC_KERNEL_CONSOLE) { 172 /* the user designates this unit to be the console */ 173 *unit = u; 174 *flags = f; 175 break; 176 } 177 if (*unit < 0) { 178 /* ...otherwise remember the first found unit */ 179 *unit = u; 180 *flags = f; 181 } 182 } 183 if ((i < 0) && (*unit < 0)) 184 return CN_DEAD; 185 if (!have_efi_fb) 186 *flags &= ~SC_EFI_FB; 187 #if 0 188 return ((*flags & SC_KERNEL_CONSOLE) ? CN_INTERNAL : CN_NORMAL); 189 #endif 190 return CN_INTERNAL; 191 } 192 193 void 194 sc_get_bios_values(bios_values_t *values) 195 { 196 values->cursor_start = 0; 197 values->cursor_end = 32; 198 values->shift_state = 0; 199 values->bell_pitch = BELL_PITCH; 200 } 201 202 int 203 sc_tone(int hertz) 204 { 205 return EBUSY; 206 #if 0 207 /* XXX use sound device if available */ 208 return 0; 209 #endif 210 } 211 212 DRIVER_MODULE(sc, nexus, sc_driver, sc_devclass, NULL, NULL); 213