bivideo.c revision 1.3
1 /* $NetBSD: bivideo.c,v 1.3 2001/02/27 08:54:17 sato Exp $ */ 2 3 /*- 4 * Copyright (c) 1999-2001 5 * Shin Takemura and PocketBSD Project. 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. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the PocketBSD project 18 * and its contributors. 19 * 4. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 #define FBDEBUG 37 static const char _copyright[] __attribute__ ((unused)) = 38 "Copyright (c) 1999 Shin Takemura. All rights reserved."; 39 static const char _rcsid[] __attribute__ ((unused)) = 40 "$Id: bivideo.c,v 1.3 2001/02/27 08:54:17 sato Exp $"; 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/buf.h> 46 #include <sys/ioctl.h> 47 #include <sys/reboot.h> 48 49 #include <uvm/uvm_extern.h> 50 51 #include <machine/bus.h> 52 #include <machine/autoconf.h> 53 #include <machine/bootinfo.h> 54 #include <machine/config_hook.h> 55 56 #include <dev/wscons/wsconsio.h> 57 #include <dev/wscons/wsdisplayvar.h> 58 59 #include <dev/rasops/rasops.h> 60 61 #include <dev/hpc/hpcfbvar.h> 62 #include <dev/hpc/hpcfbio.h> 63 #include <dev/hpc/bivideovar.h> 64 #include <dev/hpc/hpccmapvar.h> 65 66 #define VPRINTF(arg) do { if (bootverbose) printf arg; } while(0); 67 68 /* 69 * global variables 70 */ 71 int bivideo_dont_attach = 0; 72 73 /* 74 * function prototypes 75 */ 76 int bivideomatch(struct device *, struct cfdata *, void *); 77 void bivideoattach(struct device *, struct device *, void *); 78 int bivideo_ioctl(void *, u_long, caddr_t, int, struct proc *); 79 paddr_t bivideo_mmap(void *, off_t, int); 80 81 struct bivideo_softc { 82 struct device sc_dev; 83 struct hpcfb_fbconf sc_fbconf; 84 struct hpcfb_dspconf sc_dspconf; 85 void *sc_powerhook; /* power management hook */ 86 int sc_powerstate; 87 #define PWRSTAT_SUSPEND (1<<0) 88 #define PWRSTAT_LCD (1<<1) 89 #define PWRSTAT_BACKLIGHT (1<<2) 90 #define PWRSTAT_ALL (0xffffffff) 91 int sc_brightness; 92 int sc_brightness_save; 93 int sc_max_brightness; 94 int sc_contrast; 95 int sc_max_contrast; 96 97 }; 98 99 static int bivideo_init(struct hpcfb_fbconf *); 100 static void bivideo_power(int, void *); 101 static void bivideo_update_powerstate(struct bivideo_softc *, int); 102 void bivideo_get_backlight(struct bivideo_softc *); 103 void bivideo_init_brightness(struct bivideo_softc *); 104 void bivideo_init_contrast(struct bivideo_softc *); 105 void bivideo_set_brightness(struct bivideo_softc *, int); 106 void bivideo_set_contrast(struct bivideo_softc *, int); 107 108 #if defined __mips__ || defined __sh__ || defined __arm__ 109 #define __BTOP(x) ((paddr_t)(x) >> PGSHIFT) 110 #define __PTOB(x) ((paddr_t)(x) << PGSHIFT) 111 #else 112 #error "define btop, ptob." 113 #endif 114 115 /* 116 * static variables 117 */ 118 struct cfattach bivideo_ca = { 119 sizeof(struct bivideo_softc), bivideomatch, bivideoattach, 120 }; 121 struct hpcfb_accessops bivideo_ha = { 122 bivideo_ioctl, bivideo_mmap 123 }; 124 125 static int console_flag = 0; 126 static int attach_flag = 0; 127 128 /* 129 * function bodies 130 */ 131 int 132 bivideomatch(struct device *parent, struct cfdata *match, void *aux) 133 { 134 struct mainbus_attach_args *ma = aux; 135 136 if (bivideo_dont_attach || 137 strcmp(ma->ma_name, match->cf_driver->cd_name)) 138 return 0; 139 140 return (1); 141 } 142 143 void 144 bivideoattach(struct device *parent, struct device *self, void *aux) 145 { 146 struct bivideo_softc *sc = (struct bivideo_softc *)self; 147 struct hpcfb_attach_args ha; 148 149 if (attach_flag) { 150 panic("%s(%d): bivideo attached twice", __FILE__, __LINE__); 151 } 152 attach_flag = 1; 153 154 printf(": "); 155 if (bivideo_init(&sc->sc_fbconf) != 0) { 156 /* just return so that hpcfb will not be attached */ 157 return; 158 } 159 160 printf("pseudo video controller"); 161 if (console_flag) { 162 printf(", console"); 163 } 164 printf("\n"); 165 printf("%s: framebuffer address: 0x%08lx\n", 166 sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr); 167 168 /* Add a suspend hook to power saving */ 169 sc->sc_powerstate = 0; 170 sc->sc_powerhook = powerhook_establish(bivideo_power, sc); 171 if (sc->sc_powerhook == NULL) 172 printf("%s: WARNING: unable to establish power hook\n", 173 sc->sc_dev.dv_xname); 174 175 /* initialize backlight brightness and lcd contrast */ 176 sc->sc_brightness = sc->sc_contrast = 177 sc->sc_max_brightness = sc->sc_max_contrast = -1; 178 bivideo_get_backlight(sc); 179 bivideo_init_brightness(sc); 180 bivideo_init_contrast(sc); 181 182 ha.ha_console = console_flag; 183 ha.ha_accessops = &bivideo_ha; 184 ha.ha_accessctx = sc; 185 ha.ha_curfbconf = 0; 186 ha.ha_nfbconf = 1; 187 ha.ha_fbconflist = &sc->sc_fbconf; 188 ha.ha_curdspconf = 0; 189 ha.ha_ndspconf = 1; 190 ha.ha_dspconflist = &sc->sc_dspconf; 191 192 config_found(self, &ha, hpcfbprint); 193 } 194 195 int 196 bivideo_getcnfb(struct hpcfb_fbconf *fb) 197 { 198 console_flag = 1; 199 200 return bivideo_init(fb); 201 } 202 203 static int 204 bivideo_init(struct hpcfb_fbconf *fb) 205 { 206 /* 207 * get fb settings from bootinfo 208 */ 209 if (bootinfo == NULL || 210 bootinfo->fb_addr == 0 || 211 bootinfo->fb_line_bytes == 0 || 212 bootinfo->fb_width == 0 || 213 bootinfo->fb_height == 0) { 214 printf("no frame buffer infomation.\n"); 215 return (-1); 216 } 217 218 /* zero fill */ 219 bzero(fb, sizeof(*fb)); 220 221 fb->hf_conf_index = 0; /* configuration index */ 222 fb->hf_nconfs = 1; /* how many configurations */ 223 strcpy(fb->hf_name, "built-in video"); 224 /* frame buffer name */ 225 strcpy(fb->hf_conf_name, "default"); 226 /* configuration name */ 227 fb->hf_height = bootinfo->fb_height; 228 fb->hf_width = bootinfo->fb_width; 229 fb->hf_baseaddr = (u_long)bootinfo->fb_addr; 230 fb->hf_offset = (u_long)bootinfo->fb_addr - 231 __PTOB(__BTOP(bootinfo->fb_addr)); 232 /* frame buffer start offset */ 233 fb->hf_bytes_per_line = bootinfo->fb_line_bytes; 234 fb->hf_nplanes = 1; 235 fb->hf_bytes_per_plane = bootinfo->fb_height * 236 bootinfo->fb_line_bytes; 237 238 fb->hf_access_flags |= HPCFB_ACCESS_BYTE; 239 fb->hf_access_flags |= HPCFB_ACCESS_WORD; 240 fb->hf_access_flags |= HPCFB_ACCESS_DWORD; 241 242 switch (bootinfo->fb_type) { 243 /* 244 * gray scale 245 */ 246 case BIFB_D2_M2L_3: 247 case BIFB_D2_M2L_3x2: 248 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 249 /* fall through */ 250 case BIFB_D2_M2L_0: 251 case BIFB_D2_M2L_0x2: 252 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 253 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 254 fb->hf_pack_width = 8; 255 fb->hf_pixels_per_pack = 4; 256 fb->hf_pixel_width = 2; 257 fb->hf_class_data_length = sizeof(struct hf_gray_tag); 258 fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */ 259 break; 260 261 case BIFB_D4_M2L_F: 262 case BIFB_D4_M2L_Fx2: 263 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 264 /* fall through */ 265 case BIFB_D4_M2L_0: 266 case BIFB_D4_M2L_0x2: 267 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 268 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 269 fb->hf_pack_width = 8; 270 fb->hf_pixels_per_pack = 2; 271 fb->hf_pixel_width = 4; 272 fb->hf_class_data_length = sizeof(struct hf_gray_tag); 273 fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */ 274 break; 275 276 /* 277 * indexed color 278 */ 279 case BIFB_D8_FF: 280 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 281 /* fall through */ 282 case BIFB_D8_00: 283 fb->hf_class = HPCFB_CLASS_INDEXCOLOR; 284 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 285 fb->hf_pack_width = 8; 286 fb->hf_pixels_per_pack = 1; 287 fb->hf_pixel_width = 8; 288 fb->hf_class_data_length = sizeof(struct hf_indexed_tag); 289 fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */ 290 break; 291 292 /* 293 * RGB color 294 */ 295 case BIFB_D16_FFFF: 296 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 297 /* fall through */ 298 case BIFB_D16_0000: 299 fb->hf_class = HPCFB_CLASS_RGBCOLOR; 300 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 301 #if BYTE_ORDER == LITTLE_ENDIAN 302 fb->hf_swap_flags = HPCFB_SWAP_BYTE; 303 #endif 304 fb->hf_pack_width = 16; 305 fb->hf_pixels_per_pack = 1; 306 fb->hf_pixel_width = 16; 307 308 fb->hf_class_data_length = sizeof(struct hf_rgb_tag); 309 fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */ 310 311 fb->hf_u.hf_rgb.hf_red_width = 5; 312 fb->hf_u.hf_rgb.hf_red_shift = 11; 313 fb->hf_u.hf_rgb.hf_green_width = 6; 314 fb->hf_u.hf_rgb.hf_green_shift = 5; 315 fb->hf_u.hf_rgb.hf_blue_width = 5; 316 fb->hf_u.hf_rgb.hf_blue_shift = 0; 317 fb->hf_u.hf_rgb.hf_alpha_width = 0; 318 fb->hf_u.hf_rgb.hf_alpha_shift = 0; 319 break; 320 321 default: 322 printf("unsupported type %d.\n", bootinfo->fb_type); 323 return (-1); 324 break; 325 } 326 327 return (0); /* no error */ 328 } 329 330 static void 331 bivideo_power(int why, void *arg) 332 { 333 struct bivideo_softc *sc = arg; 334 335 switch (why) { 336 case PWR_SUSPEND: 337 case PWR_STANDBY: 338 sc->sc_powerstate |= PWRSTAT_SUSPEND; 339 bivideo_update_powerstate(sc, PWRSTAT_ALL); 340 break; 341 case PWR_RESUME: 342 sc->sc_powerstate &= ~PWRSTAT_SUSPEND; 343 bivideo_update_powerstate(sc, PWRSTAT_ALL); 344 break; 345 } 346 } 347 348 static void 349 bivideo_update_powerstate(struct bivideo_softc *sc, int updates) 350 { 351 if (updates & PWRSTAT_LCD) 352 config_hook_call(CONFIG_HOOK_POWERCONTROL, 353 CONFIG_HOOK_POWERCONTROL_LCD, 354 (void*)!(sc->sc_powerstate & PWRSTAT_SUSPEND)); 355 356 if (updates & PWRSTAT_BACKLIGHT) 357 config_hook_call(CONFIG_HOOK_POWERCONTROL, 358 CONFIG_HOOK_POWERCONTROL_LCDLIGHT, 359 (void*)(!(sc->sc_powerstate & PWRSTAT_SUSPEND) && 360 (sc->sc_powerstate & PWRSTAT_BACKLIGHT))); 361 } 362 363 int 364 bivideo_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 365 { 366 struct bivideo_softc *sc = (struct bivideo_softc *)v; 367 struct hpcfb_fbconf *fbconf; 368 struct hpcfb_dspconf *dspconf; 369 struct wsdisplay_cmap *cmap; 370 struct wsdisplay_param *dispparam; 371 372 switch (cmd) { 373 case WSDISPLAYIO_GETCMAP: 374 cmap = (struct wsdisplay_cmap*)data; 375 376 if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR || 377 sc->sc_fbconf.hf_pack_width != 8 || 378 256 <= cmap->index || 379 256 < (cmap->index + cmap->count)) 380 return (EINVAL); 381 382 if (!uvm_useracc(cmap->red, cmap->count, B_WRITE) || 383 !uvm_useracc(cmap->green, cmap->count, B_WRITE) || 384 !uvm_useracc(cmap->blue, cmap->count, B_WRITE)) 385 return (EFAULT); 386 387 copyout(&bivideo_cmap_r[cmap->index], cmap->red, cmap->count); 388 copyout(&bivideo_cmap_g[cmap->index], cmap->green,cmap->count); 389 copyout(&bivideo_cmap_b[cmap->index], cmap->blue, cmap->count); 390 391 return (0); 392 393 case WSDISPLAYIO_PUTCMAP: 394 /* 395 * This driver can't set color map. 396 */ 397 return (EINVAL); 398 399 400 case WSDISPLAYIO_GETPARAM: 401 dispparam = (struct wsdisplay_param*)data; 402 switch (dispparam->param) { 403 case WSDISPLAYIO_PARAM_BACKLIGHT: 404 VPRINTF(("bivideo_ioctl: GETPARAM:BACKLIGHT call\n")); 405 if (sc->sc_max_brightness == -1) 406 bivideo_init_brightness(sc); 407 bivideo_get_backlight(sc); 408 dispparam->min = 0; 409 dispparam->max = 1; 410 if (sc->sc_max_brightness > 0) 411 dispparam->curval = sc->sc_brightness > 0? 1: 0; 412 else 413 dispparam->curval = 414 (sc->sc_powerstate & PWRSTAT_BACKLIGHT) ? 1 : 0; 415 VPRINTF(("bivideo_ioctl: GETPARAM:BACKLIGHT:%d\n", 416 dispparam->curval)); 417 return 0; 418 break; 419 case WSDISPLAYIO_PARAM_CONTRAST: 420 VPRINTF(("bivideo_ioctl: GETPARAM:CONTRAST call\n")); 421 if (sc->sc_max_contrast == -1) 422 bivideo_init_contrast(sc); 423 if (sc->sc_max_contrast > 0) { 424 dispparam->min = 0; 425 dispparam->max = sc->sc_max_contrast; 426 dispparam->curval = sc->sc_contrast; 427 VPRINTF(("bivideo_ioctl: GETPARAM:CONTRAST max=%d, current=%d\n", sc->sc_max_contrast, sc->sc_contrast)); 428 return 0; 429 } else { 430 VPRINTF(("bivideo_ioctl: GETPARAM:CONTRAST ret\n")); 431 return (EINVAL); 432 } 433 break; 434 case WSDISPLAYIO_PARAM_BRIGHTNESS: 435 VPRINTF(("bivideo_ioctl: GETPARAM:BRIGHTNESS call\n")); 436 if (sc->sc_max_brightness == -1) 437 bivideo_init_brightness(sc); 438 if (sc->sc_max_brightness > 0) { 439 dispparam->min = 0; 440 dispparam->max = sc->sc_max_brightness; 441 dispparam->curval = sc->sc_brightness; 442 VPRINTF(("bivideo_ioctl: GETPARAM:BRIGHTNESS max=%d, current=%d\n", sc->sc_max_brightness, sc->sc_brightness)); 443 return 0; 444 } else { 445 VPRINTF(("bivideo_ioctl: GETPARAM:BRIGHTNESS ret\n")); 446 return (EINVAL); 447 } 448 return (EINVAL); 449 default: 450 return (EINVAL); 451 } 452 return (0); 453 454 case WSDISPLAYIO_SETPARAM: 455 dispparam = (struct wsdisplay_param*)data; 456 switch (dispparam->param) { 457 case WSDISPLAYIO_PARAM_BACKLIGHT: 458 VPRINTF(("bivideo_ioctl: SETPARAM:BACKLIGHT call\n")); 459 if (dispparam->curval < 0 || 460 1 < dispparam->curval) 461 return (EINVAL); 462 if (sc->sc_max_brightness == -1) 463 bivideo_init_brightness(sc); 464 VPRINTF(("bivideo_ioctl: SETPARAM:max brightness=%d\n", sc->sc_max_brightness)); 465 if (sc->sc_max_brightness > 0) { /* dimmer */ 466 if (dispparam->curval == 0){ 467 sc->sc_brightness_save = sc->sc_brightness; 468 bivideo_set_brightness(sc, 0); /* min */ 469 } else { 470 if (sc->sc_brightness_save == 0) 471 sc->sc_brightness_save = sc->sc_max_brightness; 472 bivideo_set_brightness(sc, sc->sc_brightness_save); 473 } 474 VPRINTF(("bivideo_ioctl: SETPARAM:BACKLIGHT: brightness=%d\n", sc->sc_brightness)); 475 } else { /* off */ 476 if (dispparam->curval == 0) 477 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 478 else 479 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 480 VPRINTF(("bivideo_ioctl: SETPARAM:BACKLIGHT: powerstate %d\n", 481 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 482 bivideo_update_powerstate(sc, PWRSTAT_BACKLIGHT); 483 VPRINTF(("bivideo_ioctl: SETPARAM:BACKLIGHT:%d\n", 484 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 485 } 486 return 0; 487 break; 488 case WSDISPLAYIO_PARAM_CONTRAST: 489 VPRINTF(("bivideo_ioctl: SETPARAM:CONTRAST call\n")); 490 if (sc->sc_max_contrast == -1) 491 bivideo_init_contrast(sc); 492 if (dispparam->curval < 0 || 493 sc->sc_max_contrast < dispparam->curval) 494 return (EINVAL); 495 if (sc->sc_max_contrast > 0) { 496 int org = sc->sc_contrast; 497 bivideo_set_contrast(sc, dispparam->curval); 498 VPRINTF(("bivideo_ioctl: SETPARAM:CONTRAST org=%d, current=%d\n", org, sc->sc_contrast)); 499 return 0; 500 } else { 501 VPRINTF(("bivideo_ioctl: SETPARAM:CONTRAST ret\n")); 502 return (EINVAL); 503 } 504 break; 505 case WSDISPLAYIO_PARAM_BRIGHTNESS: 506 VPRINTF(("bivideo_ioctl: SETPARAM:BRIGHTNESS call\n")); 507 if (sc->sc_max_brightness == -1) 508 bivideo_init_brightness(sc); 509 if (dispparam->curval < 0 || 510 sc->sc_max_brightness < dispparam->curval) 511 return (EINVAL); 512 if (sc->sc_max_brightness > 0) { 513 int org = sc->sc_brightness; 514 bivideo_set_brightness(sc, dispparam->curval); 515 VPRINTF(("bivideo_ioctl: SETPARAM:BRIGHTNESS org=%d, current=%d\n", org, sc->sc_brightness)); 516 return 0; 517 } else { 518 VPRINTF(("bivideo_ioctl: SETPARAM:BRIGHTNESS ret\n")); 519 return (EINVAL); 520 } 521 break; 522 default: 523 return (EINVAL); 524 } 525 return (0); 526 527 case HPCFBIO_GCONF: 528 fbconf = (struct hpcfb_fbconf *)data; 529 if (fbconf->hf_conf_index != 0 && 530 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 531 return (EINVAL); 532 } 533 *fbconf = sc->sc_fbconf; /* structure assignment */ 534 return (0); 535 case HPCFBIO_SCONF: 536 fbconf = (struct hpcfb_fbconf *)data; 537 if (fbconf->hf_conf_index != 0 && 538 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 539 return (EINVAL); 540 } 541 /* 542 * nothing to do because we have only one configration 543 */ 544 return (0); 545 case HPCFBIO_GDSPCONF: 546 dspconf = (struct hpcfb_dspconf *)data; 547 if ((dspconf->hd_unit_index != 0 && 548 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 549 (dspconf->hd_conf_index != 0 && 550 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 551 return (EINVAL); 552 } 553 *dspconf = sc->sc_dspconf; /* structure assignment */ 554 return (0); 555 case HPCFBIO_SDSPCONF: 556 dspconf = (struct hpcfb_dspconf *)data; 557 if ((dspconf->hd_unit_index != 0 && 558 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 559 (dspconf->hd_conf_index != 0 && 560 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 561 return (EINVAL); 562 } 563 /* 564 * nothing to do 565 * because we have only one unit and one configration 566 */ 567 return (0); 568 case HPCFBIO_GOP: 569 case HPCFBIO_SOP: 570 /* 571 * curently not implemented... 572 */ 573 return (EINVAL); 574 } 575 576 return (ENOTTY); 577 } 578 579 paddr_t 580 bivideo_mmap(void *ctx, off_t offset, int prot) 581 { 582 struct bivideo_softc *sc = (struct bivideo_softc *)ctx; 583 584 if (offset < 0 || 585 (sc->sc_fbconf.hf_bytes_per_plane + 586 sc->sc_fbconf.hf_offset) < offset) 587 return -1; 588 589 return __BTOP((u_long)bootinfo->fb_addr + offset); 590 } 591 592 void 593 bivideo_get_backlight(struct bivideo_softc *sc) 594 { 595 int val = -1; 596 597 if (sc->sc_max_brightness < 0) { 598 if (config_hook_call(CONFIG_HOOK_GET, 599 CONFIG_HOOK_POWER_LCDLIGHT, &val) != -1) { 600 if (val == 0) 601 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 602 else 603 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 604 } 605 } 606 } 607 608 void 609 bivideo_init_brightness(struct bivideo_softc *sc) 610 { 611 int val = -1; 612 613 if (config_hook_call(CONFIG_HOOK_GET, 614 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 615 sc->sc_brightness_save = sc->sc_brightness = val; 616 } 617 val = -1; 618 if (config_hook_call(CONFIG_HOOK_GET, 619 CONFIG_HOOK_BRIGHTNESS_MAX, &val) != -1) { 620 sc->sc_max_brightness = val; 621 } 622 return; 623 } 624 625 626 void 627 bivideo_init_contrast(struct bivideo_softc *sc) 628 { 629 int val = -1; 630 631 if (config_hook_call(CONFIG_HOOK_GET, 632 CONFIG_HOOK_CONTRAST, &val) != -1) { 633 sc->sc_contrast = val; 634 } 635 val = -1; 636 if (config_hook_call(CONFIG_HOOK_GET, 637 CONFIG_HOOK_CONTRAST_MAX, &val) != -1) { 638 sc->sc_max_contrast = val; 639 } 640 return; 641 } 642 643 void 644 bivideo_set_brightness(struct bivideo_softc *sc, int val) 645 { 646 sc->sc_brightness = val; 647 648 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_BRIGHTNESS, &val); 649 if (config_hook_call(CONFIG_HOOK_GET, 650 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 651 sc->sc_brightness = val; 652 } 653 } 654 655 void 656 bivideo_set_contrast(struct bivideo_softc *sc, int val) 657 { 658 sc->sc_contrast = val; 659 660 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_CONTRAST, &val); 661 if (config_hook_call(CONFIG_HOOK_GET, 662 CONFIG_HOOK_CONTRAST, &val) != -1) { 663 sc->sc_contrast = val; 664 } 665 } 666
Indexes created Mon Sep 29 21:09:56 GMT 2025