sed_saip.c revision 1.8
1 /* $NetBSD: sed_saip.c,v 1.8 2001/07/22 09:56:40 takemura 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/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 #include <sys/buf.h> 41 #include <sys/ioctl.h> 42 #include <sys/reboot.h> 43 44 #include <uvm/uvm_extern.h> 45 46 #include <machine/bus.h> 47 #include <machine/bootinfo.h> 48 #include <machine/config_hook.h> 49 #include <machine/platid.h> 50 #include <machine/platid_mask.h> 51 52 #include <dev/wscons/wsconsio.h> 53 #include <dev/wscons/wsdisplayvar.h> 54 55 #include <dev/rasops/rasops.h> 56 57 #include <dev/hpc/hpcfbvar.h> 58 #include <dev/hpc/hpcfbio.h> 59 #include <dev/hpc/hpccmapvar.h> 60 61 #include <arch/hpcarm/dev/sed1356var.h> 62 63 #define VPRINTF(arg) do { if (bootverbose) printf arg; } while(0); 64 65 /* 66 * function prototypes 67 */ 68 int sed1356match(struct device *, struct cfdata *, void *); 69 void sed1356attach(struct device *, struct device *, void *); 70 int sed1356_ioctl(void *, u_long, caddr_t, int, struct proc *); 71 paddr_t sed1356_mmap(void *, off_t, int); 72 73 74 extern struct bus_space sa11x0_bs_tag; 75 extern int j720lcdpower(void *, int, long, void *); /* XXX */ 76 77 static int sed1356_init(struct hpcfb_fbconf *); 78 static void sed1356_power(int, void *); 79 static void sed1356_update_powerstate(struct sed1356_softc *, int); 80 void sed1356_init_backlight(struct sed1356_softc *, int); 81 void sed1356_init_brightness(struct sed1356_softc *, int); 82 void sed1356_init_contrast(struct sed1356_softc *, int); 83 void sed1356_set_brightness(struct sed1356_softc *, int); 84 void sed1356_set_contrast(struct sed1356_softc *, int); 85 86 #if defined __mips__ || defined __sh__ || defined __arm__ 87 #define __BTOP(x) ((paddr_t)(x) >> PGSHIFT) 88 #define __PTOB(x) ((paddr_t)(x) << PGSHIFT) 89 #else 90 #error "define btop, ptob." 91 #endif 92 93 /* 94 * static variables 95 */ 96 struct cfattach sed_ca = { 97 sizeof(struct sed1356_softc), sed1356match, sed1356attach, 98 }; 99 struct hpcfb_accessops sed1356_ha = { 100 sed1356_ioctl, sed1356_mmap 101 }; 102 103 static int console_flag = 0; 104 static int attach_flag = 0; 105 106 /* 107 * function bodies 108 */ 109 int 110 sed1356match(struct device *parent, struct cfdata *match, void *aux) 111 { 112 113 /* XXX check version register */ 114 return 1; 115 } 116 117 void 118 sed1356attach(struct device *parent, struct device *self, void *aux) 119 { 120 struct sed1356_softc *sc = (struct sed1356_softc *)self; 121 struct hpcfb_attach_args ha; 122 123 printf("\n"); 124 125 if (attach_flag) { 126 panic("%s(%d): sed1356 attached twice", __FILE__, __LINE__); 127 } 128 attach_flag = 1; 129 130 if (sed1356_init(&sc->sc_fbconf) != 0) { 131 /* just return so that hpcfb will not be attached */ 132 return; 133 } 134 135 sc->sc_iot = &sa11x0_bs_tag; 136 sc->sc_parent = (struct sa11x0_softc *)parent; 137 if (bus_space_map(sc->sc_iot, (bus_addr_t)bootinfo->fb_addr & ~0x3fffff, 138 0x200, 0, &sc->sc_regh)) { 139 printf("%s: unable to map register\n", sc->sc_dev.dv_xname); 140 return; 141 } 142 143 printf("%s: Epson SED1356", sc->sc_dev.dv_xname); 144 if (console_flag) { 145 printf(", console"); 146 } 147 printf("\n"); 148 printf("%s: framebuffer address: 0x%08lx\n", 149 sc->sc_dev.dv_xname, (u_long)bootinfo->fb_addr); 150 151 /* Add a suspend hook to power saving */ 152 sc->sc_powerstate = 0; 153 sc->sc_powerhook = powerhook_establish(sed1356_power, sc); 154 if (sc->sc_powerhook == NULL) 155 printf("%s: WARNING: unable to establish power hook\n", 156 sc->sc_dev.dv_xname); 157 158 /* initialize backlight brightness and lcd contrast */ 159 sc->sc_lcd_inited = 0; 160 sed1356_init_brightness(sc, 1); 161 sed1356_init_contrast(sc, 1); 162 sed1356_init_backlight(sc, 1); 163 164 ha.ha_console = console_flag; 165 ha.ha_accessops = &sed1356_ha; 166 ha.ha_accessctx = sc; 167 ha.ha_curfbconf = 0; 168 ha.ha_nfbconf = 1; 169 ha.ha_fbconflist = &sc->sc_fbconf; 170 ha.ha_curdspconf = 0; 171 ha.ha_ndspconf = 1; 172 ha.ha_dspconflist = &sc->sc_dspconf; 173 174 /* XXX */ 175 if (platid_match(&platid, &platid_mask_MACH_HP_JORNADA_7XX)) { 176 config_hook(CONFIG_HOOK_POWERCONTROL, 177 CONFIG_HOOK_POWERCONTROL_LCDLIGHT, 178 CONFIG_HOOK_SHARE, j720lcdpower, sc); 179 } 180 181 config_found(self, &ha, hpcfbprint); 182 } 183 184 int 185 sed1356_getcnfb(struct hpcfb_fbconf *fb) 186 { 187 console_flag = 1; 188 189 return sed1356_init(fb); 190 } 191 192 static int 193 sed1356_init(struct hpcfb_fbconf *fb) 194 { 195 /* 196 * get fb settings from bootinfo 197 */ 198 if (bootinfo == NULL || 199 bootinfo->fb_addr == 0 || 200 bootinfo->fb_line_bytes == 0 || 201 bootinfo->fb_width == 0 || 202 bootinfo->fb_height == 0) { 203 printf("no frame buffer information.\n"); 204 return (-1); 205 } 206 207 /* zero fill */ 208 memset(fb, 0, sizeof(*fb)); 209 210 fb->hf_conf_index = 0; /* configuration index */ 211 fb->hf_nconfs = 1; /* how many configurations */ 212 strcpy(fb->hf_name, "built-in video"); 213 /* frame buffer name */ 214 strcpy(fb->hf_conf_name, "default"); 215 /* configuration name */ 216 fb->hf_height = bootinfo->fb_height; 217 fb->hf_width = bootinfo->fb_width; 218 219 if (bus_space_map(&sa11x0_bs_tag, (bus_addr_t)bootinfo->fb_addr, 220 bootinfo->fb_height * bootinfo->fb_line_bytes, 221 0, &fb->hf_baseaddr)) { 222 printf("unable to map framebuffer\n"); 223 return (-1); 224 } 225 fb->hf_offset = (u_long)bootinfo->fb_addr - 226 __PTOB(__BTOP(bootinfo->fb_addr)); 227 /* frame buffer start offset */ 228 fb->hf_bytes_per_line = bootinfo->fb_line_bytes; 229 fb->hf_nplanes = 1; 230 fb->hf_bytes_per_plane = bootinfo->fb_height * 231 bootinfo->fb_line_bytes; 232 233 fb->hf_access_flags |= HPCFB_ACCESS_BYTE; 234 fb->hf_access_flags |= HPCFB_ACCESS_WORD; 235 fb->hf_access_flags |= HPCFB_ACCESS_DWORD; 236 237 switch (bootinfo->fb_type) { 238 /* 239 * gray scale 240 */ 241 case BIFB_D4_M2L_F: 242 case BIFB_D4_M2L_Fx2: 243 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 244 /* fall through */ 245 case BIFB_D4_M2L_0: 246 case BIFB_D4_M2L_0x2: 247 fb->hf_class = HPCFB_CLASS_GRAYSCALE; 248 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 249 fb->hf_pack_width = 8; 250 fb->hf_pixels_per_pack = 2; 251 fb->hf_pixel_width = 4; 252 fb->hf_class_data_length = sizeof(struct hf_gray_tag); 253 fb->hf_u.hf_gray.hf_flags = 0; /* reserved for future use */ 254 break; 255 256 /* 257 * indexed color 258 */ 259 case BIFB_D8_FF: 260 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 261 /* fall through */ 262 case BIFB_D8_00: 263 fb->hf_class = HPCFB_CLASS_INDEXCOLOR; 264 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 265 fb->hf_pack_width = 8; 266 fb->hf_pixels_per_pack = 1; 267 fb->hf_pixel_width = 8; 268 fb->hf_class_data_length = sizeof(struct hf_indexed_tag); 269 fb->hf_u.hf_indexed.hf_flags = 0; /* reserved for future use */ 270 break; 271 272 /* 273 * RGB color 274 */ 275 case BIFB_D16_FFFF: 276 fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; 277 /* fall through */ 278 case BIFB_D16_0000: 279 fb->hf_class = HPCFB_CLASS_RGBCOLOR; 280 fb->hf_access_flags |= HPCFB_ACCESS_STATIC; 281 fb->hf_order_flags = HPCFB_REVORDER_BYTE; 282 fb->hf_pack_width = 16; 283 fb->hf_pixels_per_pack = 1; 284 fb->hf_pixel_width = 16; 285 286 fb->hf_class_data_length = sizeof(struct hf_rgb_tag); 287 fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */ 288 289 fb->hf_u.hf_rgb.hf_red_width = 5; 290 fb->hf_u.hf_rgb.hf_red_shift = 11; 291 fb->hf_u.hf_rgb.hf_green_width = 6; 292 fb->hf_u.hf_rgb.hf_green_shift = 5; 293 fb->hf_u.hf_rgb.hf_blue_width = 5; 294 fb->hf_u.hf_rgb.hf_blue_shift = 0; 295 fb->hf_u.hf_rgb.hf_alpha_width = 0; 296 fb->hf_u.hf_rgb.hf_alpha_shift = 0; 297 break; 298 299 default: 300 printf("unsupported type %d.\n", bootinfo->fb_type); 301 return (-1); 302 break; 303 } 304 305 return (0); /* no error */ 306 } 307 308 static void 309 sed1356_power(int why, void *arg) 310 { 311 struct sed1356_softc *sc = arg; 312 313 switch (why) { 314 case PWR_SUSPEND: 315 case PWR_STANDBY: 316 sc->sc_powerstate |= PWRSTAT_SUSPEND; 317 sed1356_update_powerstate(sc, PWRSTAT_ALL); 318 break; 319 case PWR_RESUME: 320 sc->sc_powerstate &= ~PWRSTAT_SUSPEND; 321 sed1356_update_powerstate(sc, PWRSTAT_ALL); 322 break; 323 } 324 } 325 326 static void 327 sed1356_update_powerstate(struct sed1356_softc *sc, int updates) 328 { 329 if (updates & PWRSTAT_LCD) 330 config_hook_call(CONFIG_HOOK_POWERCONTROL, 331 CONFIG_HOOK_POWERCONTROL_LCD, 332 (void*)!(sc->sc_powerstate & 333 (PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND))); 334 335 if (updates & PWRSTAT_BACKLIGHT) 336 config_hook_call(CONFIG_HOOK_POWERCONTROL, 337 CONFIG_HOOK_POWERCONTROL_LCDLIGHT, 338 (void*)(!(sc->sc_powerstate & 339 (PWRSTAT_VIDEOOFF|PWRSTAT_SUSPEND)) && 340 (sc->sc_powerstate & PWRSTAT_BACKLIGHT))); 341 } 342 343 int 344 sed1356_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 345 { 346 struct sed1356_softc *sc = (struct sed1356_softc *)v; 347 struct hpcfb_fbconf *fbconf; 348 struct hpcfb_dspconf *dspconf; 349 struct wsdisplay_param *dispparam; 350 351 switch (cmd) { 352 case WSDISPLAYIO_GETCMAP: 353 case WSDISPLAYIO_PUTCMAP: 354 /* 355 * XXX should be able to handle color map in 4/8 bpp mode. 356 */ 357 return (EINVAL); 358 359 case WSDISPLAYIO_SVIDEO: 360 if (*(int *)data == WSDISPLAYIO_VIDEO_OFF) 361 sc->sc_powerstate |= PWRSTAT_VIDEOOFF; 362 else 363 sc->sc_powerstate &= ~PWRSTAT_VIDEOOFF; 364 sed1356_update_powerstate(sc, PWRSTAT_ALL); 365 return 0; 366 367 case WSDISPLAYIO_GVIDEO: 368 *(int *)data = (sc->sc_powerstate&PWRSTAT_VIDEOOFF) ? 369 WSDISPLAYIO_VIDEO_OFF:WSDISPLAYIO_VIDEO_ON; 370 return 0; 371 372 373 case WSDISPLAYIO_GETPARAM: 374 dispparam = (struct wsdisplay_param*)data; 375 switch (dispparam->param) { 376 case WSDISPLAYIO_PARAM_BACKLIGHT: 377 VPRINTF(("sed1356_ioctl: GET:BACKLIGHT\n")); 378 sed1356_init_brightness(sc, 0); 379 sed1356_init_backlight(sc, 0); 380 VPRINTF(("sed1356_ioctl: GET:(real)BACKLIGHT %d\n", 381 (sc->sc_powerstate&PWRSTAT_BACKLIGHT)? 1: 0)); 382 dispparam->min = 0; 383 dispparam->max = 1; 384 if (sc->sc_max_brightness > 0) 385 dispparam->curval = sc->sc_brightness > 0? 1: 0; 386 else 387 dispparam->curval = 388 (sc->sc_powerstate&PWRSTAT_BACKLIGHT) ? 1: 0; 389 VPRINTF(("sed1356_ioctl: GET:BACKLIGHT:%d(%s)\n", 390 dispparam->curval, 391 sc->sc_max_brightness > 0? "brightness": "light")); 392 return 0; 393 break; 394 case WSDISPLAYIO_PARAM_CONTRAST: 395 VPRINTF(("sed1356_ioctl: GET:CONTRAST\n")); 396 sed1356_init_contrast(sc, 0); 397 if (sc->sc_max_contrast > 0) { 398 dispparam->min = 0; 399 dispparam->max = sc->sc_max_contrast; 400 dispparam->curval = sc->sc_contrast; 401 VPRINTF(("sed1356_ioctl: GET:CONTRAST max=%d, current=%d\n", sc->sc_max_contrast, sc->sc_contrast)); 402 return 0; 403 } else { 404 VPRINTF(("sed1356_ioctl: GET:CONTRAST EINVAL\n")); 405 return (EINVAL); 406 } 407 break; 408 case WSDISPLAYIO_PARAM_BRIGHTNESS: 409 VPRINTF(("sed1356_ioctl: GET:BRIGHTNESS\n")); 410 sed1356_init_brightness(sc, 0); 411 if (sc->sc_max_brightness > 0) { 412 dispparam->min = 0; 413 dispparam->max = sc->sc_max_brightness; 414 dispparam->curval = sc->sc_brightness; 415 VPRINTF(("sed1356_ioctl: GET:BRIGHTNESS max=%d, current=%d\n", sc->sc_max_brightness, sc->sc_brightness)); 416 return 0; 417 } else { 418 VPRINTF(("sed1356_ioctl: GET:BRIGHTNESS EINVAL\n")); 419 return (EINVAL); 420 } 421 return (EINVAL); 422 default: 423 return (EINVAL); 424 } 425 return (0); 426 427 case WSDISPLAYIO_SETPARAM: 428 dispparam = (struct wsdisplay_param*)data; 429 switch (dispparam->param) { 430 case WSDISPLAYIO_PARAM_BACKLIGHT: 431 VPRINTF(("sed1356_ioctl: SET:BACKLIGHT\n")); 432 if (dispparam->curval < 0 || 433 1 < dispparam->curval) 434 return (EINVAL); 435 sed1356_init_brightness(sc, 0); 436 VPRINTF(("sed1356_ioctl: SET:max brightness=%d\n", sc->sc_max_brightness)); 437 if (sc->sc_max_brightness > 0) { /* dimmer */ 438 if (dispparam->curval == 0){ 439 sc->sc_brightness_save = sc->sc_brightness; 440 sed1356_set_brightness(sc, 0); /* min */ 441 } else { 442 if (sc->sc_brightness_save == 0) 443 sc->sc_brightness_save = sc->sc_max_brightness; 444 sed1356_set_brightness(sc, sc->sc_brightness_save); 445 } 446 VPRINTF(("sed1356_ioctl: SET:BACKLIGHT:brightness=%d\n", sc->sc_brightness)); 447 } else { /* off */ 448 if (dispparam->curval == 0) 449 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 450 else 451 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 452 VPRINTF(("sed1356_ioctl: SET:BACKLIGHT:powerstate %d\n", 453 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 454 sed1356_update_powerstate(sc, PWRSTAT_BACKLIGHT); 455 VPRINTF(("sed1356_ioctl: SET:BACKLIGHT:%d\n", 456 (sc->sc_powerstate & PWRSTAT_BACKLIGHT)?1:0)); 457 } 458 return 0; 459 break; 460 case WSDISPLAYIO_PARAM_CONTRAST: 461 VPRINTF(("sed1356_ioctl: SET:CONTRAST\n")); 462 sed1356_init_contrast(sc, 0); 463 if (dispparam->curval < 0 || 464 sc->sc_max_contrast < dispparam->curval) 465 return (EINVAL); 466 if (sc->sc_max_contrast > 0) { 467 int org = sc->sc_contrast; 468 sed1356_set_contrast(sc, dispparam->curval); 469 VPRINTF(("sed1356_ioctl: SET:CONTRAST org=%d, current=%d\n", org, sc->sc_contrast)); 470 return 0; 471 } else { 472 VPRINTF(("sed1356_ioctl: SET:CONTRAST EINVAL\n")); 473 return (EINVAL); 474 } 475 break; 476 case WSDISPLAYIO_PARAM_BRIGHTNESS: 477 VPRINTF(("sed1356_ioctl: SET:BRIGHTNESS\n")); 478 sed1356_init_brightness(sc, 0); 479 if (dispparam->curval < 0 || 480 sc->sc_max_brightness < dispparam->curval) 481 return (EINVAL); 482 if (sc->sc_max_brightness > 0) { 483 int org = sc->sc_brightness; 484 sed1356_set_brightness(sc, dispparam->curval); 485 VPRINTF(("sed1356_ioctl: SET:BRIGHTNESS org=%d, current=%d\n", org, sc->sc_brightness)); 486 return 0; 487 } else { 488 VPRINTF(("sed1356_ioctl: SET:BRIGHTNESS EINVAL\n")); 489 return (EINVAL); 490 } 491 break; 492 default: 493 return (EINVAL); 494 } 495 return (0); 496 497 case HPCFBIO_GCONF: 498 fbconf = (struct hpcfb_fbconf *)data; 499 if (fbconf->hf_conf_index != 0 && 500 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 501 return (EINVAL); 502 } 503 *fbconf = sc->sc_fbconf; /* structure assignment */ 504 return (0); 505 case HPCFBIO_SCONF: 506 fbconf = (struct hpcfb_fbconf *)data; 507 if (fbconf->hf_conf_index != 0 && 508 fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { 509 return (EINVAL); 510 } 511 /* 512 * nothing to do because we have only one configration 513 */ 514 return (0); 515 case HPCFBIO_GDSPCONF: 516 dspconf = (struct hpcfb_dspconf *)data; 517 if ((dspconf->hd_unit_index != 0 && 518 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 519 (dspconf->hd_conf_index != 0 && 520 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 521 return (EINVAL); 522 } 523 *dspconf = sc->sc_dspconf; /* structure assignment */ 524 return (0); 525 case HPCFBIO_SDSPCONF: 526 dspconf = (struct hpcfb_dspconf *)data; 527 if ((dspconf->hd_unit_index != 0 && 528 dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || 529 (dspconf->hd_conf_index != 0 && 530 dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { 531 return (EINVAL); 532 } 533 /* 534 * nothing to do 535 * because we have only one unit and one configration 536 */ 537 return (0); 538 case HPCFBIO_GOP: 539 case HPCFBIO_SOP: 540 /* 541 * curently not implemented... 542 */ 543 return (EINVAL); 544 } 545 546 return (ENOTTY); 547 } 548 549 paddr_t 550 sed1356_mmap(void *ctx, off_t offset, int prot) 551 { 552 struct sed1356_softc *sc = (struct sed1356_softc *)ctx; 553 554 if (offset < 0 || 555 (sc->sc_fbconf.hf_bytes_per_plane + 556 sc->sc_fbconf.hf_offset) < offset) 557 return -1; 558 559 return __BTOP((u_long)bootinfo->fb_addr + offset); 560 } 561 562 563 void 564 sed1356_init_backlight(struct sed1356_softc *sc, int inattach) 565 { 566 int val = -1; 567 568 if (sc->sc_lcd_inited&BACKLIGHT_INITED) 569 return; 570 571 if (config_hook_call(CONFIG_HOOK_GET, 572 CONFIG_HOOK_POWER_LCDLIGHT, &val) != -1) { 573 /* we can get real light state */ 574 VPRINTF(("sed1356_init_backlight: real backlight=%d\n", val)); 575 if (val == 0) 576 sc->sc_powerstate &= ~PWRSTAT_BACKLIGHT; 577 else 578 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 579 sc->sc_lcd_inited |= BACKLIGHT_INITED; 580 } else if (inattach) { 581 /* 582 we cannot get real light state in attach time 583 because light device not yet attached. 584 we will retry in !inattach. 585 temporary assume light is on. 586 */ 587 sc->sc_powerstate |= PWRSTAT_BACKLIGHT; 588 } else { 589 /* we cannot get real light state, so work by myself state */ 590 sc->sc_lcd_inited |= BACKLIGHT_INITED; 591 } 592 } 593 594 void 595 sed1356_init_brightness(struct sed1356_softc *sc, int inattach) 596 { 597 int val = -1; 598 599 if (sc->sc_lcd_inited&BRIGHTNESS_INITED) 600 return; 601 602 VPRINTF(("sed1356_init_brightness\n")); 603 if (config_hook_call(CONFIG_HOOK_GET, 604 CONFIG_HOOK_BRIGHTNESS_MAX, &val) != -1) { 605 /* we can get real brightness max */ 606 VPRINTF(("sed1356_init_brightness: real brightness max=%d\n", val)); 607 sc->sc_max_brightness = val; 608 val = -1; 609 if (config_hook_call(CONFIG_HOOK_GET, 610 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 611 /* we can get real brightness */ 612 VPRINTF(("sed1356_init_brightness: real brightness=%d\n", val)); 613 sc->sc_brightness_save = sc->sc_brightness = val; 614 } else { 615 sc->sc_brightness_save = 616 sc->sc_brightness = sc->sc_max_brightness; 617 } 618 sc->sc_lcd_inited |= BRIGHTNESS_INITED; 619 } else if (inattach) { 620 /* 621 we cannot get real brightness in attach time 622 because brightness device not yet attached. 623 we will retry in !inattach. 624 */ 625 sc->sc_max_brightness = -1; 626 sc->sc_brightness = -1; 627 sc->sc_brightness_save = -1; 628 } else { 629 /* we cannot get real brightness */ 630 sc->sc_lcd_inited |= BRIGHTNESS_INITED; 631 } 632 633 return; 634 } 635 636 void 637 sed1356_init_contrast(struct sed1356_softc *sc, int inattach) 638 { 639 int val = -1; 640 641 if (sc->sc_lcd_inited&CONTRAST_INITED) 642 return; 643 644 VPRINTF(("sed1356_init_contrast\n")); 645 if (config_hook_call(CONFIG_HOOK_GET, 646 CONFIG_HOOK_CONTRAST_MAX, &val) != -1) { 647 /* we can get real contrast max */ 648 VPRINTF(("sed1356_init_contrast: real contrast max=%d\n", val)); 649 sc->sc_max_contrast = val; 650 val = -1; 651 if (config_hook_call(CONFIG_HOOK_GET, 652 CONFIG_HOOK_CONTRAST, &val) != -1) { 653 /* we can get real contrast */ 654 VPRINTF(("sed1356_init_contrast: real contrast=%d\n", val)); 655 sc->sc_contrast = val; 656 } else { 657 sc->sc_contrast = sc->sc_max_contrast; 658 } 659 sc->sc_lcd_inited |= CONTRAST_INITED; 660 } else if (inattach) { 661 /* 662 we cannot get real contrast in attach time 663 because contrast device not yet attached. 664 we will retry in !inattach. 665 */ 666 sc->sc_max_contrast = -1; 667 sc->sc_contrast = -1; 668 } else { 669 /* we cannot get real contrast */ 670 sc->sc_lcd_inited |= CONTRAST_INITED; 671 } 672 673 return; 674 } 675 676 void 677 sed1356_set_brightness(struct sed1356_softc *sc, int val) 678 { 679 sc->sc_brightness = val; 680 681 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_BRIGHTNESS, &val); 682 if (config_hook_call(CONFIG_HOOK_GET, 683 CONFIG_HOOK_BRIGHTNESS, &val) != -1) { 684 sc->sc_brightness = val; 685 } 686 } 687 688 void 689 sed1356_set_contrast(struct sed1356_softc *sc, int val) 690 { 691 sc->sc_contrast = val; 692 693 config_hook_call(CONFIG_HOOK_SET, CONFIG_HOOK_CONTRAST, &val); 694 if (config_hook_call(CONFIG_HOOK_GET, 695 CONFIG_HOOK_CONTRAST, &val) != -1) { 696 sc->sc_contrast = val; 697 } 698 } 699
Indexes created Wed Sep 24 15:09:51 GMT 2025