| 1 | /* $NetBSD: genfb.c,v 1.58 2015/06/01 20:47:59 nat Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2007 Michael Lorenz |
| 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. |
| 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 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.58 2015/06/01 20:47:59 nat Exp $" ); |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/systm.h> |
| 34 | #include <sys/kernel.h> |
| 35 | #include <sys/device.h> |
| 36 | #include <sys/proc.h> |
| 37 | #include <sys/mutex.h> |
| 38 | #include <sys/ioctl.h> |
| 39 | #include <sys/kernel.h> |
| 40 | #include <sys/systm.h> |
| 41 | #include <sys/kmem.h> |
| 42 | |
| 43 | #include <dev/wscons/wsconsio.h> |
| 44 | #include <dev/wscons/wsdisplayvar.h> |
| 45 | #include <dev/rasops/rasops.h> |
| 46 | #include <dev/wsfont/wsfont.h> |
| 47 | |
| 48 | #include <dev/wscons/wsdisplay_vconsvar.h> |
| 49 | |
| 50 | #include <dev/wsfb/genfbvar.h> |
| 51 | |
| 52 | #ifdef GENFB_DISABLE_TEXT |
| 53 | #include <sys/reboot.h> |
| 54 | #define DISABLESPLASH (boothowto & (RB_SINGLE | RB_USERCONF | RB_ASKNAME | \ |
| 55 | AB_VERBOSE | AB_DEBUG) ) |
| 56 | #endif |
| 57 | |
| 58 | #ifdef _KERNEL_OPT |
| 59 | #include "opt_genfb.h" |
| 60 | #include "opt_wsfb.h" |
| 61 | #endif |
| 62 | |
| 63 | #ifdef GENFB_DEBUG |
| 64 | #define GPRINTF panic |
| 65 | #else |
| 66 | #define GPRINTF aprint_debug |
| 67 | #endif |
| 68 | |
| 69 | #define GENFB_BRIGHTNESS_STEP 15 |
| 70 | |
| 71 | static int genfb_ioctl(void *, void *, u_long, void *, int, struct lwp *); |
| 72 | static paddr_t genfb_mmap(void *, void *, off_t, int); |
| 73 | static void genfb_pollc(void *, int); |
| 74 | |
| 75 | static void genfb_init_screen(void *, struct vcons_screen *, int, long *); |
| 76 | |
| 77 | static int genfb_putcmap(struct genfb_softc *, struct wsdisplay_cmap *); |
| 78 | static int genfb_getcmap(struct genfb_softc *, struct wsdisplay_cmap *); |
| 79 | static int genfb_putpalreg(struct genfb_softc *, uint8_t, uint8_t, |
| 80 | uint8_t, uint8_t); |
| 81 | static void genfb_init_palette(struct genfb_softc *); |
| 82 | |
| 83 | static void genfb_brightness_up(device_t); |
| 84 | static void genfb_brightness_down(device_t); |
| 85 | |
| 86 | extern const u_char rasops_cmap[768]; |
| 87 | |
| 88 | static int genfb_cnattach_called = 0; |
| 89 | static int genfb_enabled = 1; |
| 90 | |
| 91 | static struct genfb_softc *genfb_softc = NULL; |
| 92 | |
| 93 | void |
| 94 | genfb_init(struct genfb_softc *sc) |
| 95 | { |
| 96 | prop_dictionary_t dict; |
| 97 | uint64_t cmap_cb, pmf_cb, mode_cb, bl_cb, br_cb, fbaddr; |
| 98 | uint32_t fboffset; |
| 99 | bool console; |
| 100 | |
| 101 | dict = device_properties(sc->sc_dev); |
| 102 | #ifdef GENFB_DEBUG |
| 103 | printf("%s" , prop_dictionary_externalize(dict)); |
| 104 | #endif |
| 105 | prop_dictionary_get_bool(dict, "is_console" , &console); |
| 106 | |
| 107 | if (!prop_dictionary_get_uint32(dict, "width" , &sc->sc_width)) { |
| 108 | GPRINTF("no width property\n" ); |
| 109 | return; |
| 110 | } |
| 111 | if (!prop_dictionary_get_uint32(dict, "height" , &sc->sc_height)) { |
| 112 | GPRINTF("no height property\n" ); |
| 113 | return; |
| 114 | } |
| 115 | if (!prop_dictionary_get_uint32(dict, "depth" , &sc->sc_depth)) { |
| 116 | GPRINTF("no depth property\n" ); |
| 117 | return; |
| 118 | } |
| 119 | |
| 120 | /* XXX should be a 64bit value */ |
| 121 | if (!prop_dictionary_get_uint32(dict, "address" , &fboffset)) { |
| 122 | GPRINTF("no address property\n" ); |
| 123 | return; |
| 124 | } |
| 125 | |
| 126 | sc->sc_fboffset = fboffset; |
| 127 | |
| 128 | sc->sc_fbaddr = NULL; |
| 129 | if (prop_dictionary_get_uint64(dict, "virtual_address" , &fbaddr)) { |
| 130 | sc->sc_fbaddr = (void *)(uintptr_t)fbaddr; |
| 131 | } |
| 132 | |
| 133 | if (!prop_dictionary_get_uint32(dict, "linebytes" , &sc->sc_stride)) |
| 134 | sc->sc_stride = (sc->sc_width * sc->sc_depth) >> 3; |
| 135 | |
| 136 | /* |
| 137 | * deal with a bug in the Raptor firmware which always sets |
| 138 | * stride = width even when depth != 8 |
| 139 | */ |
| 140 | if (sc->sc_stride < sc->sc_width * (sc->sc_depth >> 3)) |
| 141 | sc->sc_stride = sc->sc_width * (sc->sc_depth >> 3); |
| 142 | |
| 143 | sc->sc_fbsize = sc->sc_height * sc->sc_stride; |
| 144 | |
| 145 | /* optional colour map callback */ |
| 146 | sc->sc_cmcb = NULL; |
| 147 | if (prop_dictionary_get_uint64(dict, "cmap_callback" , &cmap_cb)) { |
| 148 | if (cmap_cb != 0) |
| 149 | sc->sc_cmcb = (void *)(vaddr_t)cmap_cb; |
| 150 | } |
| 151 | |
| 152 | /* optional pmf callback */ |
| 153 | sc->sc_pmfcb = NULL; |
| 154 | if (prop_dictionary_get_uint64(dict, "pmf_callback" , &pmf_cb)) { |
| 155 | if (pmf_cb != 0) |
| 156 | sc->sc_pmfcb = (void *)(vaddr_t)pmf_cb; |
| 157 | } |
| 158 | |
| 159 | /* optional mode callback */ |
| 160 | sc->sc_modecb = NULL; |
| 161 | if (prop_dictionary_get_uint64(dict, "mode_callback" , &mode_cb)) { |
| 162 | if (mode_cb != 0) |
| 163 | sc->sc_modecb = (void *)(vaddr_t)mode_cb; |
| 164 | } |
| 165 | |
| 166 | /* optional backlight control callback */ |
| 167 | sc->sc_backlight = NULL; |
| 168 | if (prop_dictionary_get_uint64(dict, "backlight_callback" , &bl_cb)) { |
| 169 | if (bl_cb != 0) { |
| 170 | sc->sc_backlight = (void *)(vaddr_t)bl_cb; |
| 171 | aprint_naive_dev(sc->sc_dev, |
| 172 | "enabling backlight control\n" ); |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | /* optional brightness control callback */ |
| 177 | sc->sc_brightness = NULL; |
| 178 | if (prop_dictionary_get_uint64(dict, "brightness_callback" , &br_cb)) { |
| 179 | if (br_cb != 0) { |
| 180 | sc->sc_brightness = (void *)(vaddr_t)br_cb; |
| 181 | aprint_naive_dev(sc->sc_dev, |
| 182 | "enabling brightness control\n" ); |
| 183 | if (console && |
| 184 | sc->sc_brightness->gpc_upd_parameter != NULL) { |
| 185 | pmf_event_register(sc->sc_dev, |
| 186 | PMFE_DISPLAY_BRIGHTNESS_UP, |
| 187 | genfb_brightness_up, TRUE); |
| 188 | pmf_event_register(sc->sc_dev, |
| 189 | PMFE_DISPLAY_BRIGHTNESS_DOWN, |
| 190 | genfb_brightness_down, TRUE); |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | int |
| 197 | genfb_attach(struct genfb_softc *sc, struct genfb_ops *ops) |
| 198 | { |
| 199 | struct wsemuldisplaydev_attach_args aa; |
| 200 | prop_dictionary_t dict; |
| 201 | struct rasops_info *ri; |
| 202 | uint16_t crow; |
| 203 | long defattr; |
| 204 | bool console; |
| 205 | #ifdef SPLASHSCREEN |
| 206 | int i, j; |
| 207 | int error = ENXIO; |
| 208 | #endif |
| 209 | |
| 210 | dict = device_properties(sc->sc_dev); |
| 211 | prop_dictionary_get_bool(dict, "is_console" , &console); |
| 212 | |
| 213 | if (prop_dictionary_get_uint16(dict, "cursor-row" , &crow) == false) |
| 214 | crow = 0; |
| 215 | if (prop_dictionary_get_bool(dict, "clear-screen" , &sc->sc_want_clear) |
| 216 | == false) |
| 217 | sc->sc_want_clear = true; |
| 218 | |
| 219 | aprint_verbose_dev(sc->sc_dev, "framebuffer at %p, size %dx%d, depth %d, " |
| 220 | "stride %d\n" , |
| 221 | sc->sc_fboffset ? (void *)(intptr_t)sc->sc_fboffset : sc->sc_fbaddr, |
| 222 | sc->sc_width, sc->sc_height, sc->sc_depth, sc->sc_stride); |
| 223 | |
| 224 | sc->sc_defaultscreen_descr = (struct wsscreen_descr){ |
| 225 | "default" , |
| 226 | 0, 0, |
| 227 | NULL, |
| 228 | 8, 16, |
| 229 | WSSCREEN_WSCOLORS | WSSCREEN_HILIT, |
| 230 | NULL |
| 231 | }; |
| 232 | sc->sc_screens[0] = &sc->sc_defaultscreen_descr; |
| 233 | sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; |
| 234 | memcpy(&sc->sc_ops, ops, sizeof(struct genfb_ops)); |
| 235 | sc->sc_mode = WSDISPLAYIO_MODE_EMUL; |
| 236 | if (sc->sc_modecb != NULL) |
| 237 | sc->sc_modecb->gmc_setmode(sc, sc->sc_mode); |
| 238 | |
| 239 | sc->sc_accessops.ioctl = genfb_ioctl; |
| 240 | sc->sc_accessops.mmap = genfb_mmap; |
| 241 | sc->sc_accessops.pollc = genfb_pollc; |
| 242 | |
| 243 | #ifdef GENFB_SHADOWFB |
| 244 | sc->sc_shadowfb = kmem_alloc(sc->sc_fbsize, KM_SLEEP); |
| 245 | if (sc->sc_want_clear == false && sc->sc_shadowfb != NULL) |
| 246 | memcpy(sc->sc_shadowfb, sc->sc_fbaddr, sc->sc_fbsize); |
| 247 | #endif |
| 248 | |
| 249 | vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, |
| 250 | &sc->sc_accessops); |
| 251 | sc->vd.init_screen = genfb_init_screen; |
| 252 | |
| 253 | /* Do not print anything between this point and the screen |
| 254 | * clear operation below. Otherwise it will be lost. */ |
| 255 | |
| 256 | ri = &sc->sc_console_screen.scr_ri; |
| 257 | |
| 258 | vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, |
| 259 | &defattr); |
| 260 | sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; |
| 261 | |
| 262 | #ifdef SPLASHSCREEN |
| 263 | /* |
| 264 | * If system isn't going to go multiuser, or user has requested to see |
| 265 | * boot text, don't render splash screen immediately |
| 266 | */ |
| 267 | if (DISABLESPLASH) |
| 268 | #endif |
| 269 | vcons_redraw_screen(&sc->sc_console_screen); |
| 270 | |
| 271 | sc->sc_defaultscreen_descr.textops = &ri->ri_ops; |
| 272 | sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; |
| 273 | sc->sc_defaultscreen_descr.nrows = ri->ri_rows; |
| 274 | sc->sc_defaultscreen_descr.ncols = ri->ri_cols; |
| 275 | |
| 276 | if (crow >= ri->ri_rows) { |
| 277 | crow = 0; |
| 278 | sc->sc_want_clear = 1; |
| 279 | } |
| 280 | |
| 281 | if (console) |
| 282 | wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, crow, |
| 283 | defattr); |
| 284 | |
| 285 | /* Clear the whole screen to bring it to a known state. */ |
| 286 | if (sc->sc_want_clear) |
| 287 | (*ri->ri_ops.eraserows)(ri, 0, ri->ri_rows, defattr); |
| 288 | |
| 289 | #ifdef SPLASHSCREEN |
| 290 | j = 0; |
| 291 | for (i = 0; i < min(1 << sc->sc_depth, 256); i++) { |
| 292 | if (i >= SPLASH_CMAP_OFFSET && |
| 293 | i < SPLASH_CMAP_OFFSET + SPLASH_CMAP_SIZE) { |
| 294 | splash_get_cmap(i, |
| 295 | &sc->sc_cmap_red[i], |
| 296 | &sc->sc_cmap_green[i], |
| 297 | &sc->sc_cmap_blue[i]); |
| 298 | } else { |
| 299 | sc->sc_cmap_red[i] = rasops_cmap[j]; |
| 300 | sc->sc_cmap_green[i] = rasops_cmap[j + 1]; |
| 301 | sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; |
| 302 | } |
| 303 | j += 3; |
| 304 | } |
| 305 | genfb_restore_palette(sc); |
| 306 | |
| 307 | sc->sc_splash.si_depth = sc->sc_depth; |
| 308 | sc->sc_splash.si_bits = sc->sc_console_screen.scr_ri.ri_origbits; |
| 309 | sc->sc_splash.si_hwbits = sc->sc_fbaddr; |
| 310 | sc->sc_splash.si_width = sc->sc_width; |
| 311 | sc->sc_splash.si_height = sc->sc_height; |
| 312 | sc->sc_splash.si_stride = sc->sc_stride; |
| 313 | sc->sc_splash.si_fillrect = NULL; |
| 314 | if (!DISABLESPLASH) { |
| 315 | error = splash_render(&sc->sc_splash, |
| 316 | SPLASH_F_CENTER|SPLASH_F_FILL); |
| 317 | if (error) { |
| 318 | SCREEN_ENABLE_DRAWING(&sc->sc_console_screen); |
| 319 | genfb_init_palette(sc); |
| 320 | vcons_replay_msgbuf(&sc->sc_console_screen); |
| 321 | } |
| 322 | } |
| 323 | #else |
| 324 | genfb_init_palette(sc); |
| 325 | if (console) |
| 326 | vcons_replay_msgbuf(&sc->sc_console_screen); |
| 327 | #endif |
| 328 | |
| 329 | if (genfb_softc == NULL) |
| 330 | genfb_softc = sc; |
| 331 | |
| 332 | aa.console = console; |
| 333 | aa.scrdata = &sc->sc_screenlist; |
| 334 | aa.accessops = &sc->sc_accessops; |
| 335 | aa.accesscookie = &sc->vd; |
| 336 | |
| 337 | #ifdef GENFB_DISABLE_TEXT |
| 338 | if (!DISABLESPLASH && error == 0) |
| 339 | SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); |
| 340 | #endif |
| 341 | |
| 342 | config_found_ia(sc->sc_dev, "wsemuldisplaydev" , &aa, |
| 343 | wsemuldisplaydevprint); |
| 344 | |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | static int |
| 349 | genfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, |
| 350 | struct lwp *l) |
| 351 | { |
| 352 | struct vcons_data *vd = v; |
| 353 | struct genfb_softc *sc = vd->cookie; |
| 354 | struct wsdisplay_fbinfo *wdf; |
| 355 | struct vcons_screen *ms = vd->active; |
| 356 | struct wsdisplay_param *param; |
| 357 | int new_mode, error, val, ret; |
| 358 | |
| 359 | switch (cmd) { |
| 360 | case WSDISPLAYIO_GINFO: |
| 361 | if (ms == NULL) |
| 362 | return ENODEV; |
| 363 | wdf = (void *)data; |
| 364 | wdf->height = ms->scr_ri.ri_height; |
| 365 | wdf->width = ms->scr_ri.ri_width; |
| 366 | wdf->depth = ms->scr_ri.ri_depth; |
| 367 | wdf->cmsize = 256; |
| 368 | return 0; |
| 369 | |
| 370 | case WSDISPLAYIO_GETCMAP: |
| 371 | return genfb_getcmap(sc, |
| 372 | (struct wsdisplay_cmap *)data); |
| 373 | |
| 374 | case WSDISPLAYIO_PUTCMAP: |
| 375 | return genfb_putcmap(sc, |
| 376 | (struct wsdisplay_cmap *)data); |
| 377 | |
| 378 | case WSDISPLAYIO_LINEBYTES: |
| 379 | *(u_int *)data = sc->sc_stride; |
| 380 | return 0; |
| 381 | |
| 382 | case WSDISPLAYIO_SMODE: |
| 383 | new_mode = *(int *)data; |
| 384 | |
| 385 | /* notify the bus backend */ |
| 386 | error = 0; |
| 387 | if (sc->sc_ops.genfb_ioctl) |
| 388 | error = sc->sc_ops.genfb_ioctl(sc, vs, |
| 389 | cmd, data, flag, l); |
| 390 | if (error && error != EPASSTHROUGH) |
| 391 | return error; |
| 392 | |
| 393 | if (new_mode != sc->sc_mode) { |
| 394 | sc->sc_mode = new_mode; |
| 395 | if (sc->sc_modecb != NULL) |
| 396 | sc->sc_modecb->gmc_setmode(sc, |
| 397 | sc->sc_mode); |
| 398 | if (new_mode == WSDISPLAYIO_MODE_EMUL) { |
| 399 | genfb_restore_palette(sc); |
| 400 | vcons_redraw_screen(ms); |
| 401 | } |
| 402 | } |
| 403 | return 0; |
| 404 | |
| 405 | case WSDISPLAYIO_SSPLASH: |
| 406 | #if defined(SPLASHSCREEN) |
| 407 | if(*(int *)data == 1) { |
| 408 | SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); |
| 409 | splash_render(&sc->sc_splash, |
| 410 | SPLASH_F_CENTER|SPLASH_F_FILL); |
| 411 | } else { |
| 412 | SCREEN_ENABLE_DRAWING(&sc->sc_console_screen); |
| 413 | genfb_init_palette(sc); |
| 414 | } |
| 415 | vcons_redraw_screen(ms); |
| 416 | return 0; |
| 417 | #else |
| 418 | return ENODEV; |
| 419 | #endif |
| 420 | case WSDISPLAYIO_GETPARAM: |
| 421 | param = (struct wsdisplay_param *)data; |
| 422 | switch (param->param) { |
| 423 | case WSDISPLAYIO_PARAM_BRIGHTNESS: |
| 424 | if (sc->sc_brightness == NULL) |
| 425 | return EPASSTHROUGH; |
| 426 | param->min = 0; |
| 427 | param->max = 255; |
| 428 | return sc->sc_brightness->gpc_get_parameter( |
| 429 | sc->sc_brightness->gpc_cookie, |
| 430 | ¶m->curval); |
| 431 | case WSDISPLAYIO_PARAM_BACKLIGHT: |
| 432 | if (sc->sc_backlight == NULL) |
| 433 | return EPASSTHROUGH; |
| 434 | param->min = 0; |
| 435 | param->max = 1; |
| 436 | return sc->sc_backlight->gpc_get_parameter( |
| 437 | sc->sc_backlight->gpc_cookie, |
| 438 | ¶m->curval); |
| 439 | } |
| 440 | return EPASSTHROUGH; |
| 441 | |
| 442 | case WSDISPLAYIO_SETPARAM: |
| 443 | param = (struct wsdisplay_param *)data; |
| 444 | switch (param->param) { |
| 445 | case WSDISPLAYIO_PARAM_BRIGHTNESS: |
| 446 | if (sc->sc_brightness == NULL) |
| 447 | return EPASSTHROUGH; |
| 448 | val = param->curval; |
| 449 | if (val < 0) val = 0; |
| 450 | if (val > 255) val = 255; |
| 451 | return sc->sc_brightness->gpc_set_parameter( |
| 452 | sc->sc_brightness->gpc_cookie, val); |
| 453 | case WSDISPLAYIO_PARAM_BACKLIGHT: |
| 454 | if (sc->sc_backlight == NULL) |
| 455 | return EPASSTHROUGH; |
| 456 | val = param->curval; |
| 457 | if (val < 0) val = 0; |
| 458 | if (val > 1) val = 1; |
| 459 | return sc->sc_backlight->gpc_set_parameter( |
| 460 | sc->sc_backlight->gpc_cookie, val); |
| 461 | } |
| 462 | return EPASSTHROUGH; |
| 463 | } |
| 464 | ret = EPASSTHROUGH; |
| 465 | if (sc->sc_ops.genfb_ioctl) |
| 466 | ret = sc->sc_ops.genfb_ioctl(sc, vs, cmd, data, flag, l); |
| 467 | if (ret != EPASSTHROUGH) |
| 468 | return ret; |
| 469 | /* |
| 470 | * XXX |
| 471 | * handle these only if there either is no ioctl() handler or it didn't |
| 472 | * know how to deal with them. This allows bus frontends to override |
| 473 | * them but still provides fallback implementations |
| 474 | */ |
| 475 | switch (cmd) { |
| 476 | case WSDISPLAYIO_GET_EDID: { |
| 477 | |
| 478 | struct wsdisplayio_edid_info *d = data; |
| 479 | return wsdisplayio_get_edid(sc->sc_dev, d); |
| 480 | } |
| 481 | |
| 482 | case WSDISPLAYIO_GET_FBINFO: { |
| 483 | struct wsdisplayio_fbinfo *fbi = data; |
| 484 | return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); |
| 485 | } |
| 486 | } |
| 487 | return EPASSTHROUGH; |
| 488 | } |
| 489 | |
| 490 | static paddr_t |
| 491 | genfb_mmap(void *v, void *vs, off_t offset, int prot) |
| 492 | { |
| 493 | struct vcons_data *vd = v; |
| 494 | struct genfb_softc *sc = vd->cookie; |
| 495 | |
| 496 | if (sc->sc_ops.genfb_mmap) |
| 497 | return sc->sc_ops.genfb_mmap(sc, vs, offset, prot); |
| 498 | |
| 499 | return -1; |
| 500 | } |
| 501 | |
| 502 | static void |
| 503 | genfb_pollc(void *v, int on) |
| 504 | { |
| 505 | struct vcons_data *vd = v; |
| 506 | struct genfb_softc *sc = vd->cookie; |
| 507 | |
| 508 | if (sc == NULL) |
| 509 | return; |
| 510 | |
| 511 | if (on) |
| 512 | genfb_enable_polling(sc->sc_dev); |
| 513 | else |
| 514 | genfb_disable_polling(sc->sc_dev); |
| 515 | } |
| 516 | |
| 517 | static void |
| 518 | genfb_init_screen(void *cookie, struct vcons_screen *scr, |
| 519 | int existing, long *defattr) |
| 520 | { |
| 521 | struct genfb_softc *sc = cookie; |
| 522 | struct rasops_info *ri = &scr->scr_ri; |
| 523 | |
| 524 | ri->ri_depth = sc->sc_depth; |
| 525 | ri->ri_width = sc->sc_width; |
| 526 | ri->ri_height = sc->sc_height; |
| 527 | ri->ri_stride = sc->sc_stride; |
| 528 | ri->ri_flg = RI_CENTER; |
| 529 | if (sc->sc_want_clear) |
| 530 | ri->ri_flg |= RI_FULLCLEAR; |
| 531 | |
| 532 | #ifdef GENFB_SHADOWFB |
| 533 | if (sc->sc_shadowfb != NULL) { |
| 534 | |
| 535 | ri->ri_hwbits = (char *)sc->sc_fbaddr; |
| 536 | ri->ri_bits = (char *)sc->sc_shadowfb; |
| 537 | } else |
| 538 | #endif |
| 539 | { |
| 540 | ri->ri_bits = (char *)sc->sc_fbaddr; |
| 541 | scr->scr_flags |= VCONS_DONT_READ; |
| 542 | } |
| 543 | |
| 544 | if (existing && sc->sc_want_clear) { |
| 545 | ri->ri_flg |= RI_CLEAR; |
| 546 | } |
| 547 | |
| 548 | if (ri->ri_depth == 32 || ri->ri_depth == 24) { |
| 549 | bool is_bgr = false; |
| 550 | |
| 551 | if (ri->ri_depth == 32) { |
| 552 | ri->ri_flg |= RI_ENABLE_ALPHA; |
| 553 | } |
| 554 | prop_dictionary_get_bool(device_properties(sc->sc_dev), |
| 555 | "is_bgr" , &is_bgr); |
| 556 | if (is_bgr) { |
| 557 | /* someone requested BGR */ |
| 558 | ri->ri_rnum = 8; |
| 559 | ri->ri_gnum = 8; |
| 560 | ri->ri_bnum = 8; |
| 561 | ri->ri_rpos = 0; |
| 562 | ri->ri_gpos = 8; |
| 563 | ri->ri_bpos = 16; |
| 564 | } else { |
| 565 | /* assume RGB */ |
| 566 | ri->ri_rnum = 8; |
| 567 | ri->ri_gnum = 8; |
| 568 | ri->ri_bnum = 8; |
| 569 | ri->ri_rpos = 16; |
| 570 | ri->ri_gpos = 8; |
| 571 | ri->ri_bpos = 0; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | if (ri->ri_depth == 8 && sc->sc_cmcb != NULL) |
| 576 | ri->ri_flg |= RI_ENABLE_ALPHA | RI_8BIT_IS_RGB; |
| 577 | |
| 578 | |
| 579 | rasops_init(ri, 0, 0); |
| 580 | ri->ri_caps = WSSCREEN_WSCOLORS; |
| 581 | |
| 582 | rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, |
| 583 | sc->sc_width / ri->ri_font->fontwidth); |
| 584 | |
| 585 | /* TODO: actually center output */ |
| 586 | ri->ri_hw = scr; |
| 587 | |
| 588 | #ifdef GENFB_DISABLE_TEXT |
| 589 | if (scr == &sc->sc_console_screen && !DISABLESPLASH) |
| 590 | SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); |
| 591 | #endif |
| 592 | } |
| 593 | |
| 594 | static int |
| 595 | genfb_putcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm) |
| 596 | { |
| 597 | u_char *r, *g, *b; |
| 598 | u_int index = cm->index; |
| 599 | u_int count = cm->count; |
| 600 | int i, error; |
| 601 | u_char rbuf[256], gbuf[256], bbuf[256]; |
| 602 | |
| 603 | #ifdef GENFB_DEBUG |
| 604 | aprint_debug("putcmap: %d %d\n" ,index, count); |
| 605 | #endif |
| 606 | if (cm->index >= 256 || cm->count > 256 || |
| 607 | (cm->index + cm->count) > 256) |
| 608 | return EINVAL; |
| 609 | error = copyin(cm->red, &rbuf[index], count); |
| 610 | if (error) |
| 611 | return error; |
| 612 | error = copyin(cm->green, &gbuf[index], count); |
| 613 | if (error) |
| 614 | return error; |
| 615 | error = copyin(cm->blue, &bbuf[index], count); |
| 616 | if (error) |
| 617 | return error; |
| 618 | |
| 619 | memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); |
| 620 | memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); |
| 621 | memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); |
| 622 | |
| 623 | r = &sc->sc_cmap_red[index]; |
| 624 | g = &sc->sc_cmap_green[index]; |
| 625 | b = &sc->sc_cmap_blue[index]; |
| 626 | |
| 627 | for (i = 0; i < count; i++) { |
| 628 | genfb_putpalreg(sc, index, *r, *g, *b); |
| 629 | index++; |
| 630 | r++, g++, b++; |
| 631 | } |
| 632 | return 0; |
| 633 | } |
| 634 | |
| 635 | static int |
| 636 | genfb_getcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm) |
| 637 | { |
| 638 | u_int index = cm->index; |
| 639 | u_int count = cm->count; |
| 640 | int error; |
| 641 | |
| 642 | if (index >= 255 || count > 256 || index + count > 256) |
| 643 | return EINVAL; |
| 644 | |
| 645 | error = copyout(&sc->sc_cmap_red[index], cm->red, count); |
| 646 | if (error) |
| 647 | return error; |
| 648 | error = copyout(&sc->sc_cmap_green[index], cm->green, count); |
| 649 | if (error) |
| 650 | return error; |
| 651 | error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); |
| 652 | if (error) |
| 653 | return error; |
| 654 | |
| 655 | return 0; |
| 656 | } |
| 657 | |
| 658 | void |
| 659 | genfb_restore_palette(struct genfb_softc *sc) |
| 660 | { |
| 661 | int i; |
| 662 | |
| 663 | if (sc->sc_depth <= 8) { |
| 664 | for (i = 0; i < (1 << sc->sc_depth); i++) { |
| 665 | genfb_putpalreg(sc, i, sc->sc_cmap_red[i], |
| 666 | sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | static void |
| 672 | genfb_init_palette(struct genfb_softc *sc) |
| 673 | { |
| 674 | int i, j, tmp; |
| 675 | |
| 676 | if (sc->sc_depth == 8) { |
| 677 | /* generate an r3g3b2 colour map */ |
| 678 | for (i = 0; i < 256; i++) { |
| 679 | tmp = i & 0xe0; |
| 680 | /* |
| 681 | * replicate bits so 0xe0 maps to a red value of 0xff |
| 682 | * in order to make white look actually white |
| 683 | */ |
| 684 | tmp |= (tmp >> 3) | (tmp >> 6); |
| 685 | sc->sc_cmap_red[i] = tmp; |
| 686 | |
| 687 | tmp = (i & 0x1c) << 3; |
| 688 | tmp |= (tmp >> 3) | (tmp >> 6); |
| 689 | sc->sc_cmap_green[i] = tmp; |
| 690 | |
| 691 | tmp = (i & 0x03) << 6; |
| 692 | tmp |= tmp >> 2; |
| 693 | tmp |= tmp >> 4; |
| 694 | sc->sc_cmap_blue[i] = tmp; |
| 695 | |
| 696 | genfb_putpalreg(sc, i, sc->sc_cmap_red[i], |
| 697 | sc->sc_cmap_green[i], |
| 698 | sc->sc_cmap_blue[i]); |
| 699 | } |
| 700 | } else { |
| 701 | /* steal rasops' ANSI cmap */ |
| 702 | j = 0; |
| 703 | for (i = 0; i < 256; i++) { |
| 704 | sc->sc_cmap_red[i] = rasops_cmap[j]; |
| 705 | sc->sc_cmap_green[i] = rasops_cmap[j + 1]; |
| 706 | sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; |
| 707 | j += 3; |
| 708 | } |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | static int |
| 713 | genfb_putpalreg(struct genfb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, |
| 714 | uint8_t b) |
| 715 | { |
| 716 | |
| 717 | if (sc->sc_cmcb) { |
| 718 | |
| 719 | sc->sc_cmcb->gcc_set_mapreg(sc->sc_cmcb->gcc_cookie, |
| 720 | idx, r, g, b); |
| 721 | } |
| 722 | return 0; |
| 723 | } |
| 724 | |
| 725 | void |
| 726 | genfb_cnattach(void) |
| 727 | { |
| 728 | genfb_cnattach_called = 1; |
| 729 | } |
| 730 | |
| 731 | void |
| 732 | genfb_disable(void) |
| 733 | { |
| 734 | genfb_enabled = 0; |
| 735 | } |
| 736 | |
| 737 | int |
| 738 | genfb_is_console(void) |
| 739 | { |
| 740 | return genfb_cnattach_called; |
| 741 | } |
| 742 | |
| 743 | int |
| 744 | genfb_is_enabled(void) |
| 745 | { |
| 746 | return genfb_enabled; |
| 747 | } |
| 748 | |
| 749 | int |
| 750 | genfb_borrow(bus_addr_t addr, bus_space_handle_t *hdlp) |
| 751 | { |
| 752 | struct genfb_softc *sc = genfb_softc; |
| 753 | |
| 754 | if (sc && sc->sc_ops.genfb_borrow) |
| 755 | return sc->sc_ops.genfb_borrow(sc, addr, hdlp); |
| 756 | return 0; |
| 757 | } |
| 758 | |
| 759 | static void |
| 760 | genfb_brightness_up(device_t dev) |
| 761 | { |
| 762 | struct genfb_softc *sc = device_private(dev); |
| 763 | |
| 764 | KASSERT(sc->sc_brightness != NULL && |
| 765 | sc->sc_brightness->gpc_upd_parameter != NULL); |
| 766 | |
| 767 | (void)sc->sc_brightness->gpc_upd_parameter( |
| 768 | sc->sc_brightness->gpc_cookie, GENFB_BRIGHTNESS_STEP); |
| 769 | } |
| 770 | |
| 771 | static void |
| 772 | genfb_brightness_down(device_t dev) |
| 773 | { |
| 774 | struct genfb_softc *sc = device_private(dev); |
| 775 | |
| 776 | KASSERT(sc->sc_brightness != NULL && |
| 777 | sc->sc_brightness->gpc_upd_parameter != NULL); |
| 778 | |
| 779 | (void)sc->sc_brightness->gpc_upd_parameter( |
| 780 | sc->sc_brightness->gpc_cookie, - GENFB_BRIGHTNESS_STEP); |
| 781 | } |
| 782 | |
| 783 | void |
| 784 | genfb_enable_polling(device_t dev) |
| 785 | { |
| 786 | struct genfb_softc *sc = device_private(dev); |
| 787 | |
| 788 | if (sc->sc_console_screen.scr_vd) { |
| 789 | SCREEN_ENABLE_DRAWING(&sc->sc_console_screen); |
| 790 | vcons_hard_switch(&sc->sc_console_screen); |
| 791 | vcons_enable_polling(&sc->vd); |
| 792 | if (sc->sc_ops.genfb_enable_polling) |
| 793 | (*sc->sc_ops.genfb_enable_polling)(sc); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | void |
| 798 | genfb_disable_polling(device_t dev) |
| 799 | { |
| 800 | struct genfb_softc *sc = device_private(dev); |
| 801 | |
| 802 | if (sc->sc_console_screen.scr_vd) { |
| 803 | if (sc->sc_ops.genfb_disable_polling) |
| 804 | (*sc->sc_ops.genfb_disable_polling)(sc); |
| 805 | vcons_disable_polling(&sc->vd); |
| 806 | } |
| 807 | } |
| 808 | |