bivideo.c revision 1.23
1 /* $NetBSD: bivideo.c,v 1.23 2006/09/24 03:53:08 jmcneill 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 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: bivideo.c,v 1.23 2006/09/24 03:53:08 jmcneill Exp $"); 39 40 #define FBDEBUG 41 static const char _copyright[] __attribute__ ((unused)) = 42 "Copyright (c) 1999 Shin Takemura. All rights reserved."; 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 #include <sys/buf.h> 48 #include <sys/ioctl.h> 49 #include <sys/reboot.h> 50 51 #include <uvm/uvm_extern.h> 52 53 #include <machine/bus.h> 54 #include <machine/autoconf.h> 55 #include <machine/bootinfo.h> 56 #include <machine/config_hook.h> 57 58 #include <dev/wscons/wsconsio.h> 59 #include <dev/wscons/wsdisplayvar.h> 60 61 #include <dev/rasops/rasops.h> 62 63 #include <dev/hpc/hpcfbvar.h> 64 #include <dev/hpc/hpcfbio.h> 65 #include <dev/hpc/bivideovar.h> 66 #include <dev/hpc/hpccmapvar.h> 67 68 #define VPRINTF(arg) do { if (bootverbose) printf arg; } while(0); 69 70 /* 71 * global variables 72 */ 73 int bivideo_dont_attach = 0; 74 75 /* 76 * function prototypes 77 */ 78 int bivideomatch(struct device *, struct cfdata *, void *); 79 void bivideoattach(struct device *, struct device *, void *); 80 int bivideo_ioctl(void *, u_long, caddr_t, int, struct lwp *); 81 paddr_t bivideo_mmap(void *, off_t, int); 82 83 struct bivideo_softc { 84 struct device sc_dev; 85 struct hpcfb_fbconf sc_fbconf; 86 struct hpcfb_dspconf sc_dspconf; 87 void *sc_powerhook; /* power management hook */ 88 int sc_powerstate; 89 #define PWRSTAT_SUSPEND (1<<0) 90 #define PWRSTAT_VIDEOOFF (1<<1) 91 #define PWRSTAT_LCD (1<<2) 92 #define PWRSTAT_BACKLIGHT (1<<3) 93 #define PWRSTAT_ALL (0xffffffff) 94 int sc_lcd_inited; 95 #define BACKLIGHT_INITED (1<<0) 96 #define BRIGHTNESS_INITED (1<<1) 97 #define CONTRAST_INITED (1<<2) 98 int sc_brightness; 99 int sc_brightness_save; 100 int sc_max_brightness; 101 int sc_contrast; 102 int sc_max_contrast; 103 104 }; 105 106 static int bivideo_init(struct hpcfb_fbconf *); 107 static void bivideo_power(int, void *); 108 static void bivideo_update_powerstate(struct bivideo_softc *, int); 109 void bivideo_init_backlight(struct bivideo_softc *, int); 110 void bivideo_init_brightness(struct bivideo_softc *, int); 111 void bivideo_init_contrast(struct bivideo_softc *, int); 112 void bivideo_set_brightness(struct bivideo_softc *, int); 113 void bivideo_set_contrast(struct bivideo_softc *, int); 114 115 #if defined __mips__ || defined __sh__ || defined __arm__ 116 #define __BTOP(x) ((paddr_t)(x) >> PGSHIFT) 117 #define __PTOB(x) ((paddr_t)(x) << PGSHIFT) 118 #else 119 #error "define btop, ptob." 120 #endif 121 122 /* 123 * static variables 124 */ 125 CFATTACH_DECL(bivideo, sizeof(struct bivideo_softc), 126 bivideomatch, bivideoattach, NULL, NULL); 127 128 struct hpcfb_accessops bivideo_ha = { 129 bivideo_ioctl, bivideo_mmap 130 }; 131 132 static int console_flag = 0; 133 static int attach_flag = 0; 134 135 /* 136 * function bodies 137 */ 138 int 139 bivideomatch(struct device *parent, struct cfdata *match, void *aux) 140 { 141 struct mainbus_attach_args *ma = aux; 142 143 if (bivideo_dont_attach || 144 strcmp(ma->ma_name, match->cf_name)) 145 return 0; 146 147 return (1); 148 } 149 150 void 151 bivideoattach(struct device *parent, struct device *self, void *aux) 152 { 153 struct bivideo_softc *sc = device_private(self); 154 struct hpcfb_attach_args ha; 155 156 if (attach_flag) { 157 panic("%s(%d): bivideo attached twice", __FILE__, __LINE__); 158 } 159 attach_flag = 1; 160 161 printf(": "); 162 if (bivideo_init(&sc->sc_fbconf) != 0) { 163 /* just return so that hpcfb will not be attached */ 164 return; 165 } 166 167 printf("pseudo video controller"); 168 if (console_flag) { 169 printf(", console"); 170 } 171 printf("\n"); 172 printf("%s: framebuffer address: 0x%08lx\n", 173 sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr); 174 175 /* Add a suspend hook to power saving */ 176 sc->sc_powerstate = 0; 177 sc->sc_powerhook = powerhook_establish(sc->sc_dev.dv_xname, 178 bivideo_power, sc); 179 if (sc->sc_powerhook == NULL) 180 printf("%s: WARNING: unable to establish power hook\n", 181 sc->sc_dev.dv_xname); 182 183 /* initialize backlight brightness and lcd contrast */ 184 sc->sc_lcd_inited = 0; 185 bivideo_init_brightness(sc, 1); 186 bivideo_init_contrast(sc, 1); 187 bivideo_init_backlight(sc, 1); 188 189 ha.ha_console = console_flag; 190 ha.ha_accessops = &bivideo_ha; 191 ha.ha_accessctx = sc; 192 ha.ha_curfbconf = 0; 193 ha.ha_nfbconf = 1; 194 ha.ha_fbconflist = &sc->sc_fbconf; 195 ha.ha_curdspconf = 0; 196 ha.ha_ndspconf = 1; 197 ha.ha_dspconflist = &sc->sc_dspconf; 198 199 config_found(self, &ha, hpcfbprint); 200 } 201 202 int 203 bivideo_getcnfb(struct hpcfb_fbconf *fb) 204 { 205 console_flag = 1; 206 207 return bivideo_init(fb); 208 } 209 210 static int 211 bivideo_init(struct hpcfb_fbconf *fb) 212 { 213 /* 214 * get fb settings from bootinfo 215 */ 216 if (bootinfo == NULL || 217 bootinfo->fb_addr == 0 || 218 bootinfo->fb_line_bytes == 0 || 219 bootinfo->fb_width == 0 || 220 bootinfo->fb_height == 0) { 221 printf("no frame buffer information.\n"); 222 return (-1); 223 } 224 225 /* zero fill */ 226 memset(fb, 0, sizeof(*fb)); 227 228 fb->hf_conf_index = 0; /* configuration index */ 229 fb->hf_nconfs = 1; /* how many configurations */ 230 strcpy(fb->hf_name, "built-in video"); 231 /* frame buffer name */ 232 strcpy(fb->hf_conf_name, "default"); 233 /* configuration name */ 234 fb->hf_height = bootinfo->fb_height; 235 fb->hf_width = bootinfo->fb_width; 236 fb->hf_baseaddr = (u_long)bootinfo->fb_addr; 237 fb->hf_offset = (u_long)bootinfo->fb_addr - 238 __PTOB(__BTOP(bootinfo->fb_addr)); 239 /* frame buffer start offset */ 240 fb->hf_bytes_per_line = bootinfo->fb_line_bytes; 241 fb->hf_nplanes = 1; 242 fb->hf_bytes_per_plane = bootinfo->fb_height * 243 bootinfo->fb_line_bytes; 244 245 fb->hf_access_flags |= HPCFB_ACCESS_BYTE; 246 fb->hf_access_flags |= HPCFB_ACCESS_WORD; 247 fb->hf_access_flags |= HPCFB_ACCESS_DWORD; 248 249 switch (bootinfo->fb_type) { 250 /* 251 * gray scale 252 */ 253 case BIFB_D2_M2L_3: 254 case BIFB_D2_M2L_3x2: 255 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 256 /* fall through */ 257 case BIFB_D2_M2L_0: 258 case BIFB_D2_M2L_0x2: 259 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 260 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 261 fb->hf_pack_width = 8; 262 fb->hf_pixels_per_pack = 4; 263 fb->hf_pixel_width = 2; 264 fb->hf_class_data_length = sizeof(struct hf_gray_tag); 265 fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */ 266 break; 267 268 case BIFB_D4_M2L_F: 269 case BIFB_D4_M2L_Fx2: 270 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 271 /* fall through */ 272 case BIFB_D4_M2L_0: 273 case BIFB_D4_M2L_0x2: 274 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 275 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 276 fb->hf_pack_width = 8; 277 fb->hf_pixels_per_pack = 2; 278 fb->hf_pixel_width = 4; 279 fb->hf_class_data_length = sizeof(struct hf_gray_tag); 280 fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */ 281 break; 282 283 /* 284 * indexed color 285 */ 286 case BIFB_D8_FF: 287 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 288 /* fall through */ 289 case BIFB_D8_00: 290 fb->hf_class = HPCFB_CLASS_INDEXCOLOR; 291 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 292 fb->hf_pack_width = 8; 293 fb->hf_pixels_per_pack = 1; 294 fb->hf_pixel_width = 8; 295 fb->hf_class_data_length = sizeof(struct hf_indexed_tag); 296 fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */ 297 break; 298 299 /* 300 * RGB color 301 */ 302 case BIFB_D16_FFFF: 303 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 304 /* fall through */ 305 case BIFB_D16_0000: 306 fb->hf_class = HPCFB_CLASS_RGBCOLOR; 307 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 308 #if BYTE_ORDER == LITTLE_ENDIAN 309 fb->hf_order_flags = HPCFB_REVORDER_BYTE; 310 #endif 311 fb->hf_pack_width = 16; 312 fb->hf_pixels_per_pack = 1; 313 fb->hf_pixel_width = 16; 314 315 fb->hf_class_data_length = sizeof(struct hf_rgb_tag); 316 fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */ 317 318 fb->hf_u.hf_rgb.hf_red_width = 5; 319 fb->hf_u.hf_rgb.hf_red_shift = 11; 320 fb->hf_u.hf_rgb.hf_green_width = 6; 321 fb->hf_u.hf_rgb.hf_green_shift = 5; 322 fb->hf_u.hf_rgb.hf_blue_width = 5; 323 fb->hf_u.hf_rgb.hf_blue_shift = 0; 324 fb->hf_u.hf_rgb.hf_alpha_width = 0; 325 fb->hf_u.hf_rgb.hf_alpha_shift = 0; 326 break; 327 328 default: 329 printf("unsupported type %d.\n", bootinfo->fb_type); 330 return (-1); 331 break; 332 } 333 334 return (0); /* no error */ 335 } 336 337 static void 338 bivideo_power(int why, void *arg) 339 { 340 struct bivideo_softc *sc = arg; 341 342 switch (why) { 343 case PWR_SUSPEND: 344 case PWR_STANDBY: 345 sc->sc_powerstate |= PWRSTAT_SUSPEND; 346 bivideo_update_powerstate(sc, PWRSTAT_ALL); 347 break; 348 case PWR_RESUME: 349 sc->sc_powerstate &= ~PWRSTAT_SUSPEND; 350 bivideo_update_powerstate(sc, PWRSTAT_ALL); 351 break; 352 } 353 } 354 355 static void 356 bivideo_update_powerstate(struct bivideo_softc *sc, int updates) 357 { 358 if (updates & PWRSTAT_LCD) 359 config_hook_call(CONFIG_HOOK_POWERCONTROL, 360 CONFIG_HOOK_POWERCONTROL_LCD, 361 (void*)!(sc->sc_powerstate & 362 (PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND))); 363 364 if (updates & PWRSTAT_BACKLIGHT) 365 config_hook_call(CONFIG_HOOK_POWERCONTROL, 366 CONFIG_HOOK_POWERCONTROL_LCDLIGHT, 367 (void*)(!(sc->sc_powerstate & 368 (PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND)) && 369 (sc->sc_powerstate & PWRSTAT_BACKLIGHT))); 370 } 371 372 int 373 bivideo_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l) 374 { 375 struct bivideo_softc *sc = (struct bivideo_softc *)v; 376 struct hpcfb_fbconf *fbconf; 377 struct hpcfb_dspconf *dspconf; 378 struct wsdisplay_cmap *cmap; 379 struct wsdisplay_param *dispparam; 380 int error; 381 382 switch (cmd) { 383 case WSDISPLAYIO_GETCMAP: 384 cmap = (struct wsdisplay_cmap *)data; 385 386 if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR || 387 sc->sc_fbconf.hf_pack_width != 8 || 388 256 <= cmap->index || 389 256 < (cmap->index + cmap->count)) 390 return (EINVAL); 391 392 error = copyout(&bivideo_cmap_r[cmap->index], cmap->red, 393 cmap->count); 394 if (error) 395 return error; 396 error = copyout(&bivideo_cmap_g[cmap->index], cmap->green, 397 cmap->count); 398 if (error) 399 return error; 400 error = copyout(&bivideo_cmap_b[cmap->index], cmap->blue, 401 cmap->count); 402 return error; 403 404 case WSDISPLAYIO_PUTCMAP: 405 /* 406 * This driver can't set color map. 407 */ 408 return (EINVAL); 409 410 case WSDISPLAYIO_SVIDEO: 411 if (*(int *)data == WSDISPLAYIO_VIDEO_OFF) 412 sc->sc_powerstate |= PWRSTAT_VIDEOOFF; 413 else 414 sc->sc_powerstate &= ~PWRSTAT_VIDEOOFF; 415 bivideo_update_powerstate(sc, PWRSTAT_ALL); 416 return 0; 417 418 case WSDISPLAYIO_GVIDEO: 419 *(int *)data = (sc->sc_powerstate&PWRSTAT_VIDEOOFF) ? 420 WSDISPLAYIO_VIDEO_OFF:WSDISPLAYIO_VIDEO_ON; 421 return 0; 422 423 424 case WSDISPLAYIO_GETPARAM: 425 dispparam = (struct wsdisplay_param*)data; 426 switch (dispparam->param) { 427 case WSDISPLAYIO_PARAM_BACKLIGHT: 428 VPRINTF(("bivideo_ioctl: GET:BACKLIGHT\n")); 429 bivideo_init_brightness(sc, 0); 430 bivideo_init_backlight(sc, 0); 431 VPRINTF(("bivideo_ioctl: GET:(real)BACKLIGHT %d\n", 432 (sc->sc_powerstate&PWRSTAT_BACKLIGHT)? 1: 0)); 433 dispparam->min = 0; 434 dispparam->max = 1; 435 if (sc->sc_max_brightness > 0) 436 dispparam->curval = sc->sc_brightness > 0? 1: 0; 437 else 438 dispparam->curval = 439 (sc->sc_powerstate&PWRSTAT_BACKLIGHT) ? 1: 0; 440 VPRINTF(("bivideo_ioctl: GET:BACKLIGHT:%d(%s)\n", 441 dispparam->curval, 442 sc->sc_max_brightness > 0? "brightness": "light")); 443 return 0; 444 break; 445 case WSDISPLAYIO_PARAM_CONTRAST: 446 VPRINTF(("bivideo_ioctl: GET:CONTRAST\n")); 447 bivideo_init_contrast(sc, 0); 448 if (sc->sc_max_contrast > 0) { 449 dispparam->min = 0; 450 dispparam->max = sc->sc_max_contrast; 451 dispparam->curval = sc->sc_contrast; 452 VPRINTF(("bivideo_ioctl: GET:CONTRAST max=%d, current=%d\n", sc->sc_max_contrast, sc->sc_contrast)); 453 return 0; 454 } else { 455 VPRINTF(("bivideo_ioctl: GET:CONTRAST EINVAL\n")); 456 return (EINVAL); 457 } 458 break; 459 case WSDISPLAYIO_PARAM_BRIGHTNESS: 460 VPRINTF(("bivideo_ioctl: GET:BRIGHTNESS\n")); 461 bivideo_init_brightness(sc, 0); 462 if (sc->sc_max_brightness > 0) { 463 dispparam->min = 0; 464 dispparam->max = sc->sc_max_brightness; 465 dispparam->curval = sc->sc_brightness; 466 VPRINTF(("bivideo_ioctl: GET:BRIGHTNESS max=%d, current=%d\n", sc->sc_max_brightness, sc->sc_brightness)); 467 return 0; 468 } else { 469 VPRINTF(("bivideo_ioctl: GET:BRIGHTNESS EINVAL\n")); 470 return (EINVAL); 471 } 472 return (EINVAL); 473 default: 474 return (EINVAL); 475 } 476 return (0); 477 478 case WSDISPLAYIO_SETPARAM: 479 dispparam = (struct wsdisplay_param*)data; 480 switch (dispparam->param) { 481 case WSDISPLAYIO_PARAM_BACKLIGHT: 482 VPRINTF(("bivideo_ioctl: SET:BACKLIGHT\n")); 483 if (dispparam->curval < 0 || 484 1 < dispparam->curval) 485 return (EINVAL); 486 bivideo_init_brightness(sc, 0); 487 VPRINTF(("bivideo_ioctl: SET:max brightness=%d\n", sc->sc_max_brightness)); 488 if (sc->sc_max_brightness > 0) { /* dimmer */ 489 if (dispparam->curval == 0){ 490 sc->sc_brightness_save = sc->sc_brightness; 491 bivideo_set_brightness(sc, 0); /* min */ 492 } else { 493 if (sc->sc_brightness_save == 0) 494 sc->sc_brightness_save = sc->sc_max_brightness; 495 bivideo_set_brightness(sc, sc->sc_brightness_save); 496 } 497 VPRINTF(("bivideo_ioctl: SET:BACKLIGHT:brightness=%d\n", sc->sc_brightness)); 498 } else { /* off */ 499 if (dispparam->curval == 0) 500 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 501 else 502 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 503 VPRINTF(("bivideo_ioctl: SET:BACKLIGHT:powerstate %d\n", 504 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 505 bivideo_update_powerstate(sc, PWRSTAT_BACKLIGHT); 506 VPRINTF(("bivideo_ioctl: SET:BACKLIGHT:%d\n", 507 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 508 } 509 return 0; 510 break; 511 case WSDISPLAYIO_PARAM_CONTRAST: 512 VPRINTF(("bivideo_ioctl: SET:CONTRAST\n")); 513 bivideo_init_contrast(sc, 0); 514 if (dispparam->curval < 0 || 515 sc->sc_max_contrast < dispparam->curval) 516 return (EINVAL); 517 if (sc->sc_max_contrast > 0) { 518 int org = sc->sc_contrast; 519 bivideo_set_contrast(sc, dispparam->curval); 520 VPRINTF(("bivideo_ioctl: SET:CONTRAST org=%d, current=%d\n", org, sc->sc_contrast)); 521 return 0; 522 } else { 523 VPRINTF(("bivideo_ioctl: SET:CONTRAST EINVAL\n")); 524 return (EINVAL); 525 } 526 break; 527 case WSDISPLAYIO_PARAM_BRIGHTNESS: 528 VPRINTF(("bivideo_ioctl: SET:BRIGHTNESS\n")); 529 bivideo_init_brightness(sc, 0); 530 if (dispparam->curval < 0 || 531 sc->sc_max_brightness < dispparam->curval) 532 return (EINVAL); 533 if (sc->sc_max_brightness > 0) { 534 int org = sc->sc_brightness; 535 bivideo_set_brightness(sc, dispparam->curval); 536 VPRINTF(("bivideo_ioctl: SET:BRIGHTNESS org=%d, current=%d\n", org, sc->sc_brightness)); 537 return 0; 538 } else { 539 VPRINTF(("bivideo_ioctl: SET:BRIGHTNESS EINVAL\n")); 540 return (EINVAL); 541 } 542 break; 543 default: 544 return (EINVAL); 545 } 546 return (0); 547 548 case HPCFBIO_GCONF: 549 fbconf = (struct hpcfb_fbconf *)data; 550 if (fbconf->hf_conf_index != 0 && 551 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 552 return (EINVAL); 553 } 554 *fbconf = sc->sc_fbconf; /* structure assignment */ 555 return (0); 556 case HPCFBIO_SCONF: 557 fbconf = (struct hpcfb_fbconf *)data; 558 if (fbconf->hf_conf_index != 0 && 559 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 560 return (EINVAL); 561 } 562 /* 563 * nothing to do because we have only one configuration 564 */ 565 return (0); 566 case HPCFBIO_GDSPCONF: 567 dspconf = (struct hpcfb_dspconf *)data; 568 if ((dspconf->hd_unit_index != 0 && 569 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 570 (dspconf->hd_conf_index != 0 && 571 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 572 return (EINVAL); 573 } 574 *dspconf = sc->sc_dspconf; /* structure assignment */ 575 return (0); 576 case HPCFBIO_SDSPCONF: 577 dspconf = (struct hpcfb_dspconf *)data; 578 if ((dspconf->hd_unit_index != 0 && 579 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 580 (dspconf->hd_conf_index != 0 && 581 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 582 return (EINVAL); 583 } 584 /* 585 * nothing to do 586 * because we have only one unit and one configuration 587 */ 588 return (0); 589 case HPCFBIO_GOP: 590 case HPCFBIO_SOP: 591 /* 592 * curently not implemented... 593 */ 594 return (EINVAL); 595 } 596 597 return (EPASSTHROUGH); 598 } 599 600 paddr_t 601 bivideo_mmap(void *ctx, off_t offset, int prot) 602 { 603 struct bivideo_softc *sc = (struct bivideo_softc *)ctx; 604 605 if (offset < 0 || 606 (sc->sc_fbconf.hf_bytes_per_plane + 607 sc->sc_fbconf.hf_offset) < offset) 608 return -1; 609 610 return __BTOP((u_long)bootinfo->fb_addr + offset); 611 } 612 613 614 void 615 bivideo_init_backlight(struct bivideo_softc *sc, int inattach) 616 { 617 int val = -1; 618 619 if (sc->sc_lcd_inited&BACKLIGHT_INITED) 620 return; 621 622 if (config_hook_call(CONFIG_HOOK_GET, 623 CONFIG_HOOK_POWER_LCDLIGHT, &val) != -1) { 624 /* we can get real light state */ 625 VPRINTF(("bivideo_init_backlight: real backlight=%d\n", val)); 626 if (val == 0) 627 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 628 else 629 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 630 sc->sc_lcd_inited |= BACKLIGHT_INITED; 631 } else if (inattach) { 632 /* 633 we cannot get real light state in attach time 634 because light device not yet attached. 635 we will retry in !inattach. 636 temporary assume light is on. 637 */ 638 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 639 } else { 640 /* we cannot get real light state, so work by myself state */ 641 sc->sc_lcd_inited |= BACKLIGHT_INITED; 642 } 643 } 644 645 void 646 bivideo_init_brightness(struct bivideo_softc *sc, int inattach) 647 { 648 int val = -1; 649 650 if (sc->sc_lcd_inited&BRIGHTNESS_INITED) 651 return; 652 653 VPRINTF(("bivideo_init_brightness\n")); 654 if (config_hook_call(CONFIG_HOOK_GET, 655 CONFIG_HOOK_BRIGHTNESS_MAX, &val) != -1) { 656 /* we can get real brightness max */ 657 VPRINTF(("bivideo_init_brightness: real brightness max=%d\n", val)); 658 sc->sc_max_brightness = val; 659 val = -1; 660 if (config_hook_call(CONFIG_HOOK_GET, 661 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 662 /* we can get real brightness */ 663 VPRINTF(("bivideo_init_brightness: real brightness=%d\n", val)); 664 sc->sc_brightness_save = sc->sc_brightness = val; 665 } else { 666 sc->sc_brightness_save = 667 sc->sc_brightness = sc->sc_max_brightness; 668 } 669 sc->sc_lcd_inited |= BRIGHTNESS_INITED; 670 } else if (inattach) { 671 /* 672 we cannot get real brightness in attach time 673 because brightness device not yet attached. 674 we will retry in !inattach. 675 */ 676 sc->sc_max_brightness = -1; 677 sc->sc_brightness = -1; 678 sc->sc_brightness_save = -1; 679 } else { 680 /* we cannot get real brightness */ 681 sc->sc_lcd_inited |= BRIGHTNESS_INITED; 682 } 683 684 return; 685 } 686 687 void 688 bivideo_init_contrast(struct bivideo_softc *sc, int inattach) 689 { 690 int val = -1; 691 692 if (sc->sc_lcd_inited&CONTRAST_INITED) 693 return; 694 695 VPRINTF(("bivideo_init_contrast\n")); 696 if (config_hook_call(CONFIG_HOOK_GET, 697 CONFIG_HOOK_CONTRAST_MAX, &val) != -1) { 698 /* we can get real contrast max */ 699 VPRINTF(("bivideo_init_contrast: real contrast max=%d\n", val)); 700 sc->sc_max_contrast = val; 701 val = -1; 702 if (config_hook_call(CONFIG_HOOK_GET, 703 CONFIG_HOOK_CONTRAST, &val) != -1) { 704 /* we can get real contrast */ 705 VPRINTF(("bivideo_init_contrast: real contrast=%d\n", val)); 706 sc->sc_contrast = val; 707 } else { 708 sc->sc_contrast = sc->sc_max_contrast; 709 } 710 sc->sc_lcd_inited |= CONTRAST_INITED; 711 } else if (inattach) { 712 /* 713 we cannot get real contrast in attach time 714 because contrast device not yet attached. 715 we will retry in !inattach. 716 */ 717 sc->sc_max_contrast = -1; 718 sc->sc_contrast = -1; 719 } else { 720 /* we cannot get real contrast */ 721 sc->sc_lcd_inited |= CONTRAST_INITED; 722 } 723 724 return; 725 } 726 727 void 728 bivideo_set_brightness(struct bivideo_softc *sc, int val) 729 { 730 sc->sc_brightness = val; 731 732 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_BRIGHTNESS, &val); 733 if (config_hook_call(CONFIG_HOOK_GET, 734 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 735 sc->sc_brightness = val; 736 } 737 } 738 739 void 740 bivideo_set_contrast(struct bivideo_softc *sc, int val) 741 { 742 sc->sc_contrast = val; 743 744 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_CONTRAST, &val); 745 if (config_hook_call(CONFIG_HOOK_GET, 746 CONFIG_HOOK_CONTRAST, &val) != -1) { 747 sc->sc_contrast = val; 748 } 749 } 750
Indexes created Mon Sep 29 21:09:56 GMT 2025