1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_vga.h" 33 #include "opt_fb.h" 34 #include "opt_syscons.h" /* should be removed in the future, XXX */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/malloc.h> 40 #include <sys/module.h> 41 #include <sys/conf.h> 42 #include <sys/bus.h> 43 #include <sys/fbio.h> 44 45 #include <machine/bus.h> 46 #include <machine/resource.h> 47 48 #include <sys/rman.h> 49 50 #include <vm/vm.h> 51 #include <vm/pmap.h> 52 53 #include <machine/md_var.h> 54 #ifdef __i386__ 55 #include <machine/pc/bios.h> 56 #endif 57 58 #include <dev/fb/fbreg.h> 59 #include <dev/fb/vgareg.h> 60 61 #include <isa/isareg.h> 62 #include <isa/isavar.h> 63 64 #define VGA_ID 0x0009d041 /* PNP0900 */ 65 66 static struct isa_pnp_id vga_ids[] = { 67 { VGA_ID, NULL }, /* PNP0900 */ 68 { 0, NULL }, 69 }; 70 71 static void 72 vga_suspend(device_t dev) 73 { 74 vga_softc_t *sc; 75 int nbytes; 76 77 sc = device_get_softc(dev); 78 79 /* Save the video state across the suspend. */ 80 if (sc->state_buf != NULL) 81 goto save_palette; 82 nbytes = vidd_save_state(sc->adp, NULL, 0); 83 if (nbytes <= 0) 84 goto save_palette; 85 sc->state_buf = malloc(nbytes, M_TEMP, M_NOWAIT); 86 if (sc->state_buf == NULL) 87 goto save_palette; 88 if (bootverbose) 89 device_printf(dev, "saving %d bytes of video state\n", nbytes); 90 if (vidd_save_state(sc->adp, sc->state_buf, nbytes) != 0) { 91 device_printf(dev, "failed to save state (nbytes=%d)\n", 92 nbytes); 93 free(sc->state_buf, M_TEMP); 94 sc->state_buf = NULL; 95 } 96 97 save_palette: 98 /* Save the color palette across the suspend. */ 99 if (sc->pal_buf != NULL) 100 return; 101 sc->pal_buf = malloc(256 * 3, M_TEMP, M_NOWAIT); 102 if (sc->pal_buf == NULL) 103 return; 104 if (bootverbose) 105 device_printf(dev, "saving color palette\n"); 106 if (vidd_save_palette(sc->adp, sc->pal_buf) != 0) { 107 device_printf(dev, "failed to save palette\n"); 108 free(sc->pal_buf, M_TEMP); 109 sc->pal_buf = NULL; 110 } 111 } 112 113 static void 114 vga_resume(device_t dev) 115 { 116 vga_softc_t *sc; 117 118 sc = device_get_softc(dev); 119 120 if (sc->state_buf != NULL) { 121 if (vidd_load_state(sc->adp, sc->state_buf) != 0) 122 device_printf(dev, "failed to reload state\n"); 123 free(sc->state_buf, M_TEMP); 124 sc->state_buf = NULL; 125 } 126 if (sc->pal_buf != NULL) { 127 if (vidd_load_palette(sc->adp, sc->pal_buf) != 0) 128 device_printf(dev, "failed to reload palette\n"); 129 free(sc->pal_buf, M_TEMP); 130 sc->pal_buf = NULL; 131 } 132 } 133 134 static void 135 isavga_identify(driver_t *driver, device_t parent) 136 { 137 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0); 138 } 139 140 static int 141 isavga_probe(device_t dev) 142 { 143 video_adapter_t adp; 144 int error; 145 146 /* No pnp support */ 147 if (isa_get_vendorid(dev)) 148 return (ENXIO); 149 150 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev)); 151 if (error == 0) { 152 device_set_desc(dev, "Generic ISA VGA"); 153 bus_set_resource(dev, SYS_RES_IOPORT, 0, 154 adp.va_io_base, adp.va_io_size); 155 bus_set_resource(dev, SYS_RES_MEMORY, 0, 156 adp.va_mem_base, adp.va_mem_size); 157 isa_set_vendorid(dev, VGA_ID); 158 isa_set_logicalid(dev, VGA_ID); 159 #if 0 160 isa_set_port(dev, adp.va_io_base); 161 isa_set_portsize(dev, adp.va_io_size); 162 isa_set_maddr(dev, adp.va_mem_base); 163 isa_set_msize(dev, adp.va_mem_size); 164 #endif 165 } 166 return (error); 167 } 168 169 static int 170 isavga_attach(device_t dev) 171 { 172 vga_softc_t *sc; 173 int unit; 174 int rid; 175 int error; 176 177 unit = device_get_unit(dev); 178 sc = device_get_softc(dev); 179 180 rid = 0; 181 bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 182 RF_ACTIVE | RF_SHAREABLE); 183 rid = 0; 184 bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 185 RF_ACTIVE | RF_SHAREABLE); 186 187 error = vga_attach_unit(unit, sc, device_get_flags(dev)); 188 if (error) 189 return (error); 190 191 if (0 && bootverbose) 192 vidd_diag(sc->adp, bootverbose); 193 194 #if 0 /* experimental */ 195 device_add_child(dev, "fb", -1); 196 bus_generic_attach(dev); 197 #endif 198 199 return (0); 200 } 201 202 static int 203 isavga_suspend(device_t dev) 204 { 205 int error; 206 207 error = bus_generic_suspend(dev); 208 if (error != 0) 209 return (error); 210 vga_suspend(dev); 211 212 return (error); 213 } 214 215 static int 216 isavga_resume(device_t dev) 217 { 218 219 vga_resume(dev); 220 221 return (bus_generic_resume(dev)); 222 } 223 224 static device_method_t isavga_methods[] = { 225 DEVMETHOD(device_identify, isavga_identify), 226 DEVMETHOD(device_probe, isavga_probe), 227 DEVMETHOD(device_attach, isavga_attach), 228 DEVMETHOD(device_suspend, isavga_suspend), 229 DEVMETHOD(device_resume, isavga_resume), 230 231 DEVMETHOD_END 232 }; 233 234 static driver_t isavga_driver = { 235 VGA_DRIVER_NAME, 236 isavga_methods, 237 sizeof(vga_softc_t), 238 }; 239 240 DRIVER_MODULE(vga, isa, isavga_driver, 0, 0); 241 242 static void 243 vgapm_identify(driver_t *driver, device_t parent) 244 { 245 246 if (device_get_flags(parent) != 0) 247 device_add_child(parent, "vgapm", 0); 248 } 249 250 static int 251 vgapm_probe(device_t dev) 252 { 253 254 device_set_desc(dev, "VGA suspend/resume"); 255 device_quiet(dev); 256 257 return (BUS_PROBE_DEFAULT); 258 } 259 260 static int 261 vgapm_attach(device_t dev) 262 { 263 264 bus_generic_probe(dev); 265 bus_generic_attach(dev); 266 267 return (0); 268 } 269 270 static int 271 vgapm_suspend(device_t dev) 272 { 273 device_t vga_dev; 274 int error; 275 276 error = bus_generic_suspend(dev); 277 if (error != 0) 278 return (error); 279 vga_dev = devclass_get_device(devclass_find(VGA_DRIVER_NAME), 0); 280 if (vga_dev == NULL) 281 return (0); 282 vga_suspend(vga_dev); 283 284 return (0); 285 } 286 287 static int 288 vgapm_resume(device_t dev) 289 { 290 device_t vga_dev; 291 292 vga_dev = devclass_get_device(devclass_find(VGA_DRIVER_NAME), 0); 293 if (vga_dev != NULL) 294 vga_resume(vga_dev); 295 296 return (bus_generic_resume(dev)); 297 } 298 299 static device_method_t vgapm_methods[] = { 300 DEVMETHOD(device_identify, vgapm_identify), 301 DEVMETHOD(device_probe, vgapm_probe), 302 DEVMETHOD(device_attach, vgapm_attach), 303 DEVMETHOD(device_suspend, vgapm_suspend), 304 DEVMETHOD(device_resume, vgapm_resume), 305 { 0, 0 } 306 }; 307 308 static driver_t vgapm_driver = { 309 "vgapm", 310 vgapm_methods, 311 0 312 }; 313 314 DRIVER_MODULE(vgapm, vgapci, vgapm_driver, 0, 0); 315 ISA_PNP_INFO(vga_ids); 316