1/* 2 * Copyright (c) 2006-2009 Red Hat Inc. 3 * Copyright (c) 2006-2008 Intel Corporation 4 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 5 * 6 * DRM framebuffer helper functions 7 * 8 * Permission to use, copy, modify, distribute, and sell this software and its 9 * documentation for any purpose is hereby granted without fee, provided that 10 * the above copyright notice appear in all copies and that both that copyright 11 * notice and this permission notice appear in supporting documentation, and 12 * that the name of the copyright holders not be used in advertising or 13 * publicity pertaining to distribution of the software without specific, 14 * written prior permission. The copyright holders make no representations 15 * about the suitability of this software for any purpose. It is provided "as 16 * is" without express or implied warranty. 17 * 18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 * OF THIS SOFTWARE. 25 * 26 * Authors: 27 * Dave Airlie <airlied@linux.ie> 28 * Jesse Barnes <jesse.barnes@intel.com> 29 */ 30 31#include <sys/cdefs.h>
| 1/* 2 * Copyright (c) 2006-2009 Red Hat Inc. 3 * Copyright (c) 2006-2008 Intel Corporation 4 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> 5 * 6 * DRM framebuffer helper functions 7 * 8 * Permission to use, copy, modify, distribute, and sell this software and its 9 * documentation for any purpose is hereby granted without fee, provided that 10 * the above copyright notice appear in all copies and that both that copyright 11 * notice and this permission notice appear in supporting documentation, and 12 * that the name of the copyright holders not be used in advertising or 13 * publicity pertaining to distribution of the software without specific, 14 * written prior permission. The copyright holders make no representations 15 * about the suitability of this software for any purpose. It is provided "as 16 * is" without express or implied warranty. 17 * 18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 * OF THIS SOFTWARE. 25 * 26 * Authors: 27 * Dave Airlie <airlied@linux.ie> 28 * Jesse Barnes <jesse.barnes@intel.com> 29 */ 30 31#include <sys/cdefs.h>
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32__FBSDID("$FreeBSD: head/sys/dev/drm2/drm_fb_helper.c 248061 2013-03-08 18:15:07Z dumbbell $");
| 32__FBSDID("$FreeBSD: head/sys/dev/drm2/drm_fb_helper.c 259016 2013-12-05 22:38:53Z ray $");
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33 34#include <dev/drm2/drmP.h> 35#include <dev/drm2/drm_crtc.h> 36#include <dev/drm2/drm_fb_helper.h> 37#include <dev/drm2/drm_crtc_helper.h> 38
| 33 34#include <dev/drm2/drmP.h> 35#include <dev/drm2/drm_crtc.h> 36#include <dev/drm2/drm_fb_helper.h> 37#include <dev/drm2/drm_crtc_helper.h> 38
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| 39#if defined(__FreeBSD__) 40struct vt_kms_softc { 41 struct drm_fb_helper *fb_helper; 42 struct task fb_mode_task; 43}; 44 45static fb_enter_t vt_kms_postswitch; 46static void vt_restore_fbdev_mode(void *, int); 47 48/* Call restore out of vt(9) locks. */ 49static void 50vt_restore_fbdev_mode(void *arg, int pending) 51{ 52 struct drm_fb_helper *fb_helper; 53 struct vt_kms_softc *sc; 54 55 sc = (struct vt_kms_softc *)arg; 56 fb_helper = sc->fb_helper; 57 sx_xlock(&fb_helper->dev->mode_config.mutex); 58 drm_fb_helper_restore_fbdev_mode(fb_helper); 59 sx_xunlock(&fb_helper->dev->mode_config.mutex); 60} 61 62static int 63vt_kms_postswitch(void *arg) 64{ 65 struct vt_kms_softc *sc; 66 67 sc = (struct vt_kms_softc *)arg; 68 taskqueue_enqueue_fast(taskqueue_thread, &sc->fb_mode_task); 69 70 return (0); 71} 72#endif 73
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39static DRM_LIST_HEAD(kernel_fb_helper_list); 40 41/* simple single crtc case helper function */ 42int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) 43{ 44 struct drm_device *dev = fb_helper->dev; 45 struct drm_connector *connector; 46 47 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 48 struct drm_fb_helper_connector *fb_helper_connector; 49 50 fb_helper_connector = malloc( 51 sizeof(struct drm_fb_helper_connector), DRM_MEM_KMS, 52 M_WAITOK | M_ZERO); 53 54 fb_helper_connector->connector = connector; 55 fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; 56 } 57 return 0; 58} 59 60const char *fb_mode_option; 61 62/** 63 * drm_fb_helper_connector_parse_command_line - parse command line for connector 64 * @connector - connector to parse line for 65 * @mode_option - per connector mode option 66 * 67 * This parses the connector specific then generic command lines for 68 * modes and options to configure the connector. 69 * 70 * This uses the same parameters as the fb modedb.c, except for extra 71 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd] 72 * 73 * enable/enable Digital/disable bit at the end 74 */ 75static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_connector *fb_helper_conn, 76 const char *mode_option) 77{ 78 const char *name; 79 unsigned int namelen; 80 int res_specified = 0, bpp_specified = 0, refresh_specified = 0; 81 unsigned int xres = 0, yres = 0, bpp = 32, refresh = 0; 82 int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0; 83 int i; 84 enum drm_connector_force force = DRM_FORCE_UNSPECIFIED; 85 struct drm_fb_helper_cmdline_mode *cmdline_mode; 86 struct drm_connector *connector; 87 88 if (!fb_helper_conn) 89 return false; 90 connector = fb_helper_conn->connector; 91 92 cmdline_mode = &fb_helper_conn->cmdline_mode; 93 if (!mode_option) 94 mode_option = fb_mode_option; 95 96 if (!mode_option) { 97 cmdline_mode->specified = false; 98 return false; 99 } 100 101 name = mode_option; 102 namelen = strlen(name); 103 for (i = namelen-1; i >= 0; i--) { 104 switch (name[i]) { 105 case '@': 106 namelen = i; 107 if (!refresh_specified && !bpp_specified && 108 !yres_specified) { 109 refresh = strtol(&name[i+1], NULL, 10); 110 refresh_specified = 1; 111 if (cvt || rb) 112 cvt = 0; 113 } else 114 goto done; 115 break; 116 case '-': 117 namelen = i; 118 if (!bpp_specified && !yres_specified) { 119 bpp = strtol(&name[i+1], NULL, 10); 120 bpp_specified = 1; 121 if (cvt || rb) 122 cvt = 0; 123 } else 124 goto done; 125 break; 126 case 'x': 127 if (!yres_specified) { 128 yres = strtol(&name[i+1], NULL, 10); 129 yres_specified = 1; 130 } else 131 goto done; 132 case '0' ... '9': 133 break; 134 case 'M': 135 if (!yres_specified) 136 cvt = 1; 137 break; 138 case 'R': 139 if (cvt) 140 rb = 1; 141 break; 142 case 'm': 143 if (!cvt) 144 margins = 1; 145 break; 146 case 'i': 147 if (!cvt) 148 interlace = 1; 149 break; 150 case 'e': 151 force = DRM_FORCE_ON; 152 break; 153 case 'D': 154 if ((connector->connector_type != DRM_MODE_CONNECTOR_DVII) && 155 (connector->connector_type != DRM_MODE_CONNECTOR_HDMIB)) 156 force = DRM_FORCE_ON; 157 else 158 force = DRM_FORCE_ON_DIGITAL; 159 break; 160 case 'd': 161 force = DRM_FORCE_OFF; 162 break; 163 default: 164 goto done; 165 } 166 } 167 if (i < 0 && yres_specified) { 168 xres = strtol(name, NULL, 10); 169 res_specified = 1; 170 } 171done: 172 173 DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 174 drm_get_connector_name(connector), xres, yres, 175 (refresh) ? refresh : 60, (rb) ? " reduced blanking" : 176 "", (margins) ? " with margins" : "", (interlace) ? 177 " interlaced" : ""); 178 179 if (force) { 180 const char *s; 181 switch (force) { 182 case DRM_FORCE_OFF: s = "OFF"; break; 183 case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break; 184 default: 185 case DRM_FORCE_ON: s = "ON"; break; 186 } 187 188 DRM_INFO("forcing %s connector %s\n", 189 drm_get_connector_name(connector), s); 190 connector->force = force; 191 } 192 193 if (res_specified) { 194 cmdline_mode->specified = true; 195 cmdline_mode->xres = xres; 196 cmdline_mode->yres = yres; 197 } 198 199 if (refresh_specified) { 200 cmdline_mode->refresh_specified = true; 201 cmdline_mode->refresh = refresh; 202 } 203 204 if (bpp_specified) { 205 cmdline_mode->bpp_specified = true; 206 cmdline_mode->bpp = bpp; 207 } 208 cmdline_mode->rb = rb ? true : false; 209 cmdline_mode->cvt = cvt ? true : false; 210 cmdline_mode->interlace = interlace ? true : false; 211 212 return true; 213} 214 215static int 216fb_get_options(const char *connector_name, char **option) 217{ 218
| 74static DRM_LIST_HEAD(kernel_fb_helper_list); 75 76/* simple single crtc case helper function */ 77int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) 78{ 79 struct drm_device *dev = fb_helper->dev; 80 struct drm_connector *connector; 81 82 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 83 struct drm_fb_helper_connector *fb_helper_connector; 84 85 fb_helper_connector = malloc( 86 sizeof(struct drm_fb_helper_connector), DRM_MEM_KMS, 87 M_WAITOK | M_ZERO); 88 89 fb_helper_connector->connector = connector; 90 fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; 91 } 92 return 0; 93} 94 95const char *fb_mode_option; 96 97/** 98 * drm_fb_helper_connector_parse_command_line - parse command line for connector 99 * @connector - connector to parse line for 100 * @mode_option - per connector mode option 101 * 102 * This parses the connector specific then generic command lines for 103 * modes and options to configure the connector. 104 * 105 * This uses the same parameters as the fb modedb.c, except for extra 106 * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd] 107 * 108 * enable/enable Digital/disable bit at the end 109 */ 110static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_connector *fb_helper_conn, 111 const char *mode_option) 112{ 113 const char *name; 114 unsigned int namelen; 115 int res_specified = 0, bpp_specified = 0, refresh_specified = 0; 116 unsigned int xres = 0, yres = 0, bpp = 32, refresh = 0; 117 int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0; 118 int i; 119 enum drm_connector_force force = DRM_FORCE_UNSPECIFIED; 120 struct drm_fb_helper_cmdline_mode *cmdline_mode; 121 struct drm_connector *connector; 122 123 if (!fb_helper_conn) 124 return false; 125 connector = fb_helper_conn->connector; 126 127 cmdline_mode = &fb_helper_conn->cmdline_mode; 128 if (!mode_option) 129 mode_option = fb_mode_option; 130 131 if (!mode_option) { 132 cmdline_mode->specified = false; 133 return false; 134 } 135 136 name = mode_option; 137 namelen = strlen(name); 138 for (i = namelen-1; i >= 0; i--) { 139 switch (name[i]) { 140 case '@': 141 namelen = i; 142 if (!refresh_specified && !bpp_specified && 143 !yres_specified) { 144 refresh = strtol(&name[i+1], NULL, 10); 145 refresh_specified = 1; 146 if (cvt || rb) 147 cvt = 0; 148 } else 149 goto done; 150 break; 151 case '-': 152 namelen = i; 153 if (!bpp_specified && !yres_specified) { 154 bpp = strtol(&name[i+1], NULL, 10); 155 bpp_specified = 1; 156 if (cvt || rb) 157 cvt = 0; 158 } else 159 goto done; 160 break; 161 case 'x': 162 if (!yres_specified) { 163 yres = strtol(&name[i+1], NULL, 10); 164 yres_specified = 1; 165 } else 166 goto done; 167 case '0' ... '9': 168 break; 169 case 'M': 170 if (!yres_specified) 171 cvt = 1; 172 break; 173 case 'R': 174 if (cvt) 175 rb = 1; 176 break; 177 case 'm': 178 if (!cvt) 179 margins = 1; 180 break; 181 case 'i': 182 if (!cvt) 183 interlace = 1; 184 break; 185 case 'e': 186 force = DRM_FORCE_ON; 187 break; 188 case 'D': 189 if ((connector->connector_type != DRM_MODE_CONNECTOR_DVII) && 190 (connector->connector_type != DRM_MODE_CONNECTOR_HDMIB)) 191 force = DRM_FORCE_ON; 192 else 193 force = DRM_FORCE_ON_DIGITAL; 194 break; 195 case 'd': 196 force = DRM_FORCE_OFF; 197 break; 198 default: 199 goto done; 200 } 201 } 202 if (i < 0 && yres_specified) { 203 xres = strtol(name, NULL, 10); 204 res_specified = 1; 205 } 206done: 207 208 DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", 209 drm_get_connector_name(connector), xres, yres, 210 (refresh) ? refresh : 60, (rb) ? " reduced blanking" : 211 "", (margins) ? " with margins" : "", (interlace) ? 212 " interlaced" : ""); 213 214 if (force) { 215 const char *s; 216 switch (force) { 217 case DRM_FORCE_OFF: s = "OFF"; break; 218 case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break; 219 default: 220 case DRM_FORCE_ON: s = "ON"; break; 221 } 222 223 DRM_INFO("forcing %s connector %s\n", 224 drm_get_connector_name(connector), s); 225 connector->force = force; 226 } 227 228 if (res_specified) { 229 cmdline_mode->specified = true; 230 cmdline_mode->xres = xres; 231 cmdline_mode->yres = yres; 232 } 233 234 if (refresh_specified) { 235 cmdline_mode->refresh_specified = true; 236 cmdline_mode->refresh = refresh; 237 } 238 239 if (bpp_specified) { 240 cmdline_mode->bpp_specified = true; 241 cmdline_mode->bpp = bpp; 242 } 243 cmdline_mode->rb = rb ? true : false; 244 cmdline_mode->cvt = cvt ? true : false; 245 cmdline_mode->interlace = interlace ? true : false; 246 247 return true; 248} 249 250static int 251fb_get_options(const char *connector_name, char **option) 252{ 253
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| 254 /* 255 * TODO: store mode options pointer in ${option} for connector with 256 * name ${connector_name} 257 */
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219 return (1); 220} 221 222static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper) 223{ 224 struct drm_fb_helper_connector *fb_helper_conn; 225 int i; 226 227 for (i = 0; i < fb_helper->connector_count; i++) { 228 char *option = NULL; 229 230 fb_helper_conn = fb_helper->connector_info[i]; 231 232 /* do something on return - turn off connector maybe */ 233 if (fb_get_options(drm_get_connector_name(fb_helper_conn->connector), &option)) 234 continue; 235 236 drm_fb_helper_connector_parse_command_line(fb_helper_conn, option); 237 } 238 return 0; 239} 240 241#if 0 242static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper) 243{ 244 uint16_t *r_base, *g_base, *b_base; 245 int i; 246 247 r_base = crtc->gamma_store; 248 g_base = r_base + crtc->gamma_size; 249 b_base = g_base + crtc->gamma_size; 250 251 for (i = 0; i < crtc->gamma_size; i++) 252 helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i); 253} 254 255static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) 256{ 257 uint16_t *r_base, *g_base, *b_base; 258 259 r_base = crtc->gamma_store; 260 g_base = r_base + crtc->gamma_size; 261 b_base = g_base + crtc->gamma_size; 262 263 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 264} 265#endif 266 267#if 0 268int drm_fb_helper_debug_enter(struct fb_info *info) 269{ 270 struct drm_fb_helper *helper = info->par; 271 struct drm_crtc_helper_funcs *funcs; 272 int i; 273 274 if (list_empty(&kernel_fb_helper_list)) 275 return false; 276 277 list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { 278 for (i = 0; i < helper->crtc_count; i++) { 279 struct drm_mode_set *mode_set = 280 &helper->crtc_info[i].mode_set; 281 282 if (!mode_set->crtc->enabled) 283 continue; 284 285 funcs = mode_set->crtc->helper_private; 286 drm_fb_helper_save_lut_atomic(mode_set->crtc, helper); 287 funcs->mode_set_base_atomic(mode_set->crtc, 288 mode_set->fb, 289 mode_set->x, 290 mode_set->y, 291 ENTER_ATOMIC_MODE_SET); 292 } 293 } 294 295 return 0; 296} 297#endif 298 299#if 0 300/* Find the real fb for a given fb helper CRTC */ 301static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc) 302{ 303 struct drm_device *dev = crtc->dev; 304 struct drm_crtc *c; 305 306 list_for_each_entry(c, &dev->mode_config.crtc_list, head) { 307 if (crtc->base.id == c->base.id) 308 return c->fb; 309 } 310 311 return NULL; 312} 313#endif 314 315#if 0 316int drm_fb_helper_debug_leave(struct fb_info *info) 317{ 318 struct drm_fb_helper *helper = info->par; 319 struct drm_crtc *crtc; 320 struct drm_crtc_helper_funcs *funcs; 321 struct drm_framebuffer *fb; 322 int i; 323 324 for (i = 0; i < helper->crtc_count; i++) { 325 struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set; 326 crtc = mode_set->crtc; 327 funcs = crtc->helper_private; 328 fb = drm_mode_config_fb(crtc); 329 330 if (!crtc->enabled) 331 continue; 332 333 if (!fb) { 334 DRM_ERROR("no fb to restore??\n"); 335 continue; 336 } 337 338 drm_fb_helper_restore_lut_atomic(mode_set->crtc); 339 funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x, 340 crtc->y, LEAVE_ATOMIC_MODE_SET); 341 } 342 343 return 0; 344} 345#endif 346 347bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper) 348{ 349 bool error = false; 350 int i, ret; 351 for (i = 0; i < fb_helper->crtc_count; i++) { 352 struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; 353 ret = drm_crtc_helper_set_config(mode_set); 354 if (ret) 355 error = true; 356 } 357 return error; 358} 359 360#if 0 361bool drm_fb_helper_force_kernel_mode(void) 362{ 363 bool ret, error = false; 364 struct drm_fb_helper *helper; 365 366 if (list_empty(&kernel_fb_helper_list)) 367 return false; 368 369 list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { 370 if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF) 371 continue; 372 373 ret = drm_fb_helper_restore_fbdev_mode(helper); 374 if (ret) 375 error = true; 376 } 377 return error; 378} 379#endif 380 381#if 0 382int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed, 383 void *panic_str) 384{ 385 printf("panic occurred, switching back to text console\n"); 386 return drm_fb_helper_force_kernel_mode(); 387 return 0; 388} 389 390static struct notifier_block paniced = { 391 .notifier_call = drm_fb_helper_panic, 392}; 393 394/** 395 * drm_fb_helper_restore - restore the framebuffer console (kernel) config 396 * 397 * Restore's the kernel's fbcon mode, used for lastclose & panic paths. 398 */ 399void drm_fb_helper_restore(void) 400{ 401 bool ret; 402 ret = drm_fb_helper_force_kernel_mode(); 403 if (ret == true) 404 DRM_ERROR("Failed to restore crtc configuration\n"); 405} 406 407#ifdef CONFIG_MAGIC_SYSRQ 408static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) 409{ 410 drm_fb_helper_restore(); 411} 412static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); 413 414static void drm_fb_helper_sysrq(int dummy1) 415{ 416 schedule_work(&drm_fb_helper_restore_work); 417} 418 419static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { 420 .handler = drm_fb_helper_sysrq, 421 .help_msg = "force-fb(V)", 422 .action_msg = "Restore framebuffer console", 423}; 424#else 425static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { }; 426#endif 427#endif 428 429#if 0 430static void drm_fb_helper_on(struct fb_info *info) 431{ 432 struct drm_fb_helper *fb_helper = info->par; 433 struct drm_device *dev = fb_helper->dev; 434 struct drm_crtc *crtc; 435 struct drm_crtc_helper_funcs *crtc_funcs; 436 struct drm_connector *connector; 437 struct drm_encoder *encoder; 438 int i, j; 439 440 /* 441 * For each CRTC in this fb, turn the crtc on then, 442 * find all associated encoders and turn them on. 443 */ 444 sx_xlock(&dev->mode_config.mutex); 445 for (i = 0; i < fb_helper->crtc_count; i++) { 446 crtc = fb_helper->crtc_info[i].mode_set.crtc; 447 crtc_funcs = crtc->helper_private; 448 449 if (!crtc->enabled) 450 continue; 451 452 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); 453 454 /* Walk the connectors & encoders on this fb turning them on */ 455 for (j = 0; j < fb_helper->connector_count; j++) { 456 connector = fb_helper->connector_info[j]->connector; 457 connector->dpms = DRM_MODE_DPMS_ON; 458 drm_connector_property_set_value(connector, 459 dev->mode_config.dpms_property, 460 DRM_MODE_DPMS_ON); 461 } 462 /* Found a CRTC on this fb, now find encoders */ 463 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 464 if (encoder->crtc == crtc) { 465 struct drm_encoder_helper_funcs *encoder_funcs; 466 467 encoder_funcs = encoder->helper_private; 468 encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); 469 } 470 } 471 } 472 sx_xunlock(&dev->mode_config.mutex); 473} 474#endif 475 476#if 0 477static void drm_fb_helper_off(struct fb_info *info, int dpms_mode) 478{ 479 struct drm_fb_helper *fb_helper = info->par; 480 struct drm_device *dev = fb_helper->dev; 481 struct drm_crtc *crtc; 482 struct drm_crtc_helper_funcs *crtc_funcs; 483 struct drm_connector *connector; 484 struct drm_encoder *encoder; 485 int i, j; 486 487 /* 488 * For each CRTC in this fb, find all associated encoders 489 * and turn them off, then turn off the CRTC. 490 */ 491 sx_xlock(&dev->mode_config.mutex); 492 for (i = 0; i < fb_helper->crtc_count; i++) { 493 crtc = fb_helper->crtc_info[i].mode_set.crtc; 494 crtc_funcs = crtc->helper_private; 495 496 if (!crtc->enabled) 497 continue; 498 499 /* Walk the connectors on this fb and mark them off */ 500 for (j = 0; j < fb_helper->connector_count; j++) { 501 connector = fb_helper->connector_info[j]->connector; 502 connector->dpms = dpms_mode; 503 drm_connector_property_set_value(connector, 504 dev->mode_config.dpms_property, 505 dpms_mode); 506 } 507 /* Found a CRTC on this fb, now find encoders */ 508 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 509 if (encoder->crtc == crtc) { 510 struct drm_encoder_helper_funcs *encoder_funcs; 511 512 encoder_funcs = encoder->helper_private; 513 encoder_funcs->dpms(encoder, dpms_mode); 514 } 515 } 516 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); 517 } 518 sx_xunlock(&dev->mode_config.mutex); 519} 520#endif 521 522#if 0 523int drm_fb_helper_blank(int blank, struct fb_info *info) 524{ 525 switch (blank) { 526 /* Display: On; HSync: On, VSync: On */ 527 case FB_BLANK_UNBLANK: 528 drm_fb_helper_on(info); 529 break; 530 /* Display: Off; HSync: On, VSync: On */ 531 case FB_BLANK_NORMAL: 532 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 533 break; 534 /* Display: Off; HSync: Off, VSync: On */ 535 case FB_BLANK_HSYNC_SUSPEND: 536 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 537 break; 538 /* Display: Off; HSync: On, VSync: Off */ 539 case FB_BLANK_VSYNC_SUSPEND: 540 drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND); 541 break; 542 /* Display: Off; HSync: Off, VSync: Off */ 543 case FB_BLANK_POWERDOWN: 544 drm_fb_helper_off(info, DRM_MODE_DPMS_OFF); 545 break; 546 } 547 return 0; 548} 549#endif 550 551static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) 552{ 553 int i; 554 555 for (i = 0; i < helper->connector_count; i++) 556 free(helper->connector_info[i], DRM_MEM_KMS); 557 free(helper->connector_info, DRM_MEM_KMS); 558 for (i = 0; i < helper->crtc_count; i++) { 559 free(helper->crtc_info[i].mode_set.connectors, DRM_MEM_KMS); 560 if (helper->crtc_info[i].mode_set.mode) 561 drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode); 562 } 563 free(helper->crtc_info, DRM_MEM_KMS); 564} 565 566int drm_fb_helper_init(struct drm_device *dev, 567 struct drm_fb_helper *fb_helper, 568 int crtc_count, int max_conn_count) 569{ 570 struct drm_crtc *crtc; 571 int i; 572 573 fb_helper->dev = dev; 574 575 INIT_LIST_HEAD(&fb_helper->kernel_fb_list); 576 577 fb_helper->crtc_info = malloc(crtc_count * 578 sizeof(struct drm_fb_helper_crtc), DRM_MEM_KMS, M_WAITOK | M_ZERO); 579 580 fb_helper->crtc_count = crtc_count; 581 fb_helper->connector_info = malloc(dev->mode_config.num_connector * 582 sizeof(struct drm_fb_helper_connector *), DRM_MEM_KMS, 583 M_WAITOK | M_ZERO); 584 fb_helper->connector_count = 0; 585 586 for (i = 0; i < crtc_count; i++) { 587 fb_helper->crtc_info[i].mode_set.connectors = 588 malloc(max_conn_count * sizeof(struct drm_connector *), 589 DRM_MEM_KMS, M_WAITOK | M_ZERO); 590 591 fb_helper->crtc_info[i].mode_set.num_connectors = 0; 592 } 593 594 i = 0; 595 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 596 fb_helper->crtc_info[i].crtc_id = crtc->base.id; 597 fb_helper->crtc_info[i].mode_set.crtc = crtc; 598 i++; 599 } 600 fb_helper->conn_limit = max_conn_count; 601 return 0; 602} 603 604void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) 605{ 606 if (!list_empty(&fb_helper->kernel_fb_list)) { 607 list_del(&fb_helper->kernel_fb_list); 608 if (list_empty(&kernel_fb_helper_list)) { 609#if 0 610 printk(KERN_INFO "drm: unregistered panic notifier\n"); 611 atomic_notifier_chain_unregister(&panic_notifier_list, 612 &paniced); 613 unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); 614#endif 615 } 616 } 617 618 drm_fb_helper_crtc_free(fb_helper); 619 620} 621 622#if 0 623static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, 624 u16 blue, u16 regno, struct fb_info *info) 625{ 626 struct drm_fb_helper *fb_helper = info->par; 627 struct drm_framebuffer *fb = fb_helper->fb; 628 int pindex; 629 630 if (info->fix.visual == FB_VISUAL_trueCOLOR) { 631 u32 *palette; 632 u32 value; 633 /* place color in psuedopalette */ 634 if (regno > 16) 635 return -EINVAL; 636 palette = (u32 *)info->pseudo_palette; 637 red >>= (16 - info->var.red.length); 638 green >>= (16 - info->var.green.length); 639 blue >>= (16 - info->var.blue.length); 640 value = (red << info->var.red.offset) | 641 (green << info->var.green.offset) | 642 (blue << info->var.blue.offset); 643 if (info->var.transp.length > 0) { 644 u32 mask = (1 << info->var.transp.length) - 1; 645 mask <<= info->var.transp.offset; 646 value |= mask; 647 } 648 palette[regno] = value; 649 return 0; 650 } 651 652 pindex = regno; 653 654 if (fb->bits_per_pixel == 16) { 655 pindex = regno << 3; 656 657 if (fb->depth == 16 && regno > 63) 658 return -EINVAL; 659 if (fb->depth == 15 && regno > 31) 660 return -EINVAL; 661 662 if (fb->depth == 16) { 663 u16 r, g, b; 664 int i; 665 if (regno < 32) { 666 for (i = 0; i < 8; i++) 667 fb_helper->funcs->gamma_set(crtc, red, 668 green, blue, pindex + i); 669 } 670 671 fb_helper->funcs->gamma_get(crtc, &r, 672 &g, &b, 673 pindex >> 1); 674 675 for (i = 0; i < 4; i++) 676 fb_helper->funcs->gamma_set(crtc, r, 677 green, b, 678 (pindex >> 1) + i); 679 } 680 } 681 682 if (fb->depth != 16) 683 fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); 684 return 0; 685} 686#endif 687 688#if 0 689int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) 690{ 691 struct drm_fb_helper *fb_helper = info->par; 692 struct drm_crtc_helper_funcs *crtc_funcs; 693 u16 *red, *green, *blue, *transp; 694 struct drm_crtc *crtc; 695 int i, j, rc = 0; 696 int start; 697 698 for (i = 0; i < fb_helper->crtc_count; i++) { 699 crtc = fb_helper->crtc_info[i].mode_set.crtc; 700 crtc_funcs = crtc->helper_private; 701 702 red = cmap->red; 703 green = cmap->green; 704 blue = cmap->blue; 705 transp = cmap->transp; 706 start = cmap->start; 707 708 for (j = 0; j < cmap->len; j++) { 709 u16 hred, hgreen, hblue, htransp = 0xffff; 710 711 hred = *red++; 712 hgreen = *green++; 713 hblue = *blue++; 714 715 if (transp) 716 htransp = *transp++; 717 718 rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); 719 if (rc) 720 return rc; 721 } 722 crtc_funcs->load_lut(crtc); 723 } 724 return rc; 725} 726#endif 727 728#if 0 729int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 730 struct fb_info *info) 731{ 732 struct drm_fb_helper *fb_helper = info->par; 733 struct drm_framebuffer *fb = fb_helper->fb; 734 int depth; 735 736 if (var->pixclock != 0 || in_dbg_master()) 737 return -EINVAL; 738 739 /* Need to resize the fb object !!! */ 740 if (var->bits_per_pixel > fb->bits_per_pixel || 741 var->xres > fb->width || var->yres > fb->height || 742 var->xres_virtual > fb->width || var->yres_virtual > fb->height) { 743 DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " 744 "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", 745 var->xres, var->yres, var->bits_per_pixel, 746 var->xres_virtual, var->yres_virtual, 747 fb->width, fb->height, fb->bits_per_pixel); 748 return -EINVAL; 749 } 750 751 switch (var->bits_per_pixel) { 752 case 16: 753 depth = (var->green.length == 6) ? 16 : 15; 754 break; 755 case 32: 756 depth = (var->transp.length > 0) ? 32 : 24; 757 break; 758 default: 759 depth = var->bits_per_pixel; 760 break; 761 } 762 763 switch (depth) { 764 case 8: 765 var->red.offset = 0; 766 var->green.offset = 0; 767 var->blue.offset = 0; 768 var->red.length = 8; 769 var->green.length = 8; 770 var->blue.length = 8; 771 var->transp.length = 0; 772 var->transp.offset = 0; 773 break; 774 case 15: 775 var->red.offset = 10; 776 var->green.offset = 5; 777 var->blue.offset = 0; 778 var->red.length = 5; 779 var->green.length = 5; 780 var->blue.length = 5; 781 var->transp.length = 1; 782 var->transp.offset = 15; 783 break; 784 case 16: 785 var->red.offset = 11; 786 var->green.offset = 5; 787 var->blue.offset = 0; 788 var->red.length = 5; 789 var->green.length = 6; 790 var->blue.length = 5; 791 var->transp.length = 0; 792 var->transp.offset = 0; 793 break; 794 case 24: 795 var->red.offset = 16; 796 var->green.offset = 8; 797 var->blue.offset = 0; 798 var->red.length = 8; 799 var->green.length = 8; 800 var->blue.length = 8; 801 var->transp.length = 0; 802 var->transp.offset = 0; 803 break; 804 case 32: 805 var->red.offset = 16; 806 var->green.offset = 8; 807 var->blue.offset = 0; 808 var->red.length = 8; 809 var->green.length = 8; 810 var->blue.length = 8; 811 var->transp.length = 8; 812 var->transp.offset = 24; 813 break; 814 default: 815 return -EINVAL; 816 } 817 return 0; 818} 819#endif 820 821#if 0 822/* this will let fbcon do the mode init */ 823int drm_fb_helper_set_par(struct fb_info *info) 824{ 825 struct drm_fb_helper *fb_helper = info->par; 826 struct drm_device *dev = fb_helper->dev; 827 struct fb_var_screeninfo *var = &info->var; 828 struct drm_crtc *crtc; 829 int ret; 830 int i; 831 832 if (var->pixclock != 0) { 833 DRM_ERROR("PIXEL CLOCK SET\n"); 834 return -EINVAL; 835 } 836 837 mutex_lock(&dev->mode_config.mutex); 838 for (i = 0; i < fb_helper->crtc_count; i++) { 839 crtc = fb_helper->crtc_info[i].mode_set.crtc; 840 ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set); 841 if (ret) { 842 mutex_unlock(&dev->mode_config.mutex); 843 return ret; 844 } 845 } 846 mutex_unlock(&dev->mode_config.mutex); 847 848 if (fb_helper->delayed_hotplug) { 849 fb_helper->delayed_hotplug = false; 850 drm_fb_helper_hotplug_event(fb_helper); 851 } 852 return 0; 853} 854#endif 855 856#if 0 857int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, 858 struct fb_info *info) 859{ 860 struct drm_fb_helper *fb_helper = info->par; 861 struct drm_device *dev = fb_helper->dev; 862 struct drm_mode_set *modeset; 863 struct drm_crtc *crtc; 864 int ret = 0; 865 int i; 866 867 mutex_lock(&dev->mode_config.mutex); 868 for (i = 0; i < fb_helper->crtc_count; i++) { 869 crtc = fb_helper->crtc_info[i].mode_set.crtc; 870 871 modeset = &fb_helper->crtc_info[i].mode_set; 872 873 modeset->x = var->xoffset; 874 modeset->y = var->yoffset; 875 876 if (modeset->num_connectors) { 877 ret = crtc->funcs->set_config(modeset); 878 if (!ret) { 879 info->var.xoffset = var->xoffset; 880 info->var.yoffset = var->yoffset; 881 } 882 } 883 } 884 mutex_unlock(&dev->mode_config.mutex); 885 return ret; 886} 887#endif 888 889int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, 890 int preferred_bpp) 891{ 892 int new_fb = 0; 893 int crtc_count = 0; 894 int i;
| 258 return (1); 259} 260 261static int drm_fb_helper_parse_command_line(struct drm_fb_helper *fb_helper) 262{ 263 struct drm_fb_helper_connector *fb_helper_conn; 264 int i; 265 266 for (i = 0; i < fb_helper->connector_count; i++) { 267 char *option = NULL; 268 269 fb_helper_conn = fb_helper->connector_info[i]; 270 271 /* do something on return - turn off connector maybe */ 272 if (fb_get_options(drm_get_connector_name(fb_helper_conn->connector), &option)) 273 continue; 274 275 drm_fb_helper_connector_parse_command_line(fb_helper_conn, option); 276 } 277 return 0; 278} 279 280#if 0 281static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper) 282{ 283 uint16_t *r_base, *g_base, *b_base; 284 int i; 285 286 r_base = crtc->gamma_store; 287 g_base = r_base + crtc->gamma_size; 288 b_base = g_base + crtc->gamma_size; 289 290 for (i = 0; i < crtc->gamma_size; i++) 291 helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i); 292} 293 294static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) 295{ 296 uint16_t *r_base, *g_base, *b_base; 297 298 r_base = crtc->gamma_store; 299 g_base = r_base + crtc->gamma_size; 300 b_base = g_base + crtc->gamma_size; 301 302 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 303} 304#endif 305 306#if 0 307int drm_fb_helper_debug_enter(struct fb_info *info) 308{ 309 struct drm_fb_helper *helper = info->par; 310 struct drm_crtc_helper_funcs *funcs; 311 int i; 312 313 if (list_empty(&kernel_fb_helper_list)) 314 return false; 315 316 list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { 317 for (i = 0; i < helper->crtc_count; i++) { 318 struct drm_mode_set *mode_set = 319 &helper->crtc_info[i].mode_set; 320 321 if (!mode_set->crtc->enabled) 322 continue; 323 324 funcs = mode_set->crtc->helper_private; 325 drm_fb_helper_save_lut_atomic(mode_set->crtc, helper); 326 funcs->mode_set_base_atomic(mode_set->crtc, 327 mode_set->fb, 328 mode_set->x, 329 mode_set->y, 330 ENTER_ATOMIC_MODE_SET); 331 } 332 } 333 334 return 0; 335} 336#endif 337 338#if 0 339/* Find the real fb for a given fb helper CRTC */ 340static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc) 341{ 342 struct drm_device *dev = crtc->dev; 343 struct drm_crtc *c; 344 345 list_for_each_entry(c, &dev->mode_config.crtc_list, head) { 346 if (crtc->base.id == c->base.id) 347 return c->fb; 348 } 349 350 return NULL; 351} 352#endif 353 354#if 0 355int drm_fb_helper_debug_leave(struct fb_info *info) 356{ 357 struct drm_fb_helper *helper = info->par; 358 struct drm_crtc *crtc; 359 struct drm_crtc_helper_funcs *funcs; 360 struct drm_framebuffer *fb; 361 int i; 362 363 for (i = 0; i < helper->crtc_count; i++) { 364 struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set; 365 crtc = mode_set->crtc; 366 funcs = crtc->helper_private; 367 fb = drm_mode_config_fb(crtc); 368 369 if (!crtc->enabled) 370 continue; 371 372 if (!fb) { 373 DRM_ERROR("no fb to restore??\n"); 374 continue; 375 } 376 377 drm_fb_helper_restore_lut_atomic(mode_set->crtc); 378 funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x, 379 crtc->y, LEAVE_ATOMIC_MODE_SET); 380 } 381 382 return 0; 383} 384#endif 385 386bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper) 387{ 388 bool error = false; 389 int i, ret; 390 for (i = 0; i < fb_helper->crtc_count; i++) { 391 struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; 392 ret = drm_crtc_helper_set_config(mode_set); 393 if (ret) 394 error = true; 395 } 396 return error; 397} 398 399#if 0 400bool drm_fb_helper_force_kernel_mode(void) 401{ 402 bool ret, error = false; 403 struct drm_fb_helper *helper; 404 405 if (list_empty(&kernel_fb_helper_list)) 406 return false; 407 408 list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { 409 if (helper->dev->switch_power_state == DRM_SWITCH_POWER_OFF) 410 continue; 411 412 ret = drm_fb_helper_restore_fbdev_mode(helper); 413 if (ret) 414 error = true; 415 } 416 return error; 417} 418#endif 419 420#if 0 421int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed, 422 void *panic_str) 423{ 424 printf("panic occurred, switching back to text console\n"); 425 return drm_fb_helper_force_kernel_mode(); 426 return 0; 427} 428 429static struct notifier_block paniced = { 430 .notifier_call = drm_fb_helper_panic, 431}; 432 433/** 434 * drm_fb_helper_restore - restore the framebuffer console (kernel) config 435 * 436 * Restore's the kernel's fbcon mode, used for lastclose & panic paths. 437 */ 438void drm_fb_helper_restore(void) 439{ 440 bool ret; 441 ret = drm_fb_helper_force_kernel_mode(); 442 if (ret == true) 443 DRM_ERROR("Failed to restore crtc configuration\n"); 444} 445 446#ifdef CONFIG_MAGIC_SYSRQ 447static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) 448{ 449 drm_fb_helper_restore(); 450} 451static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); 452 453static void drm_fb_helper_sysrq(int dummy1) 454{ 455 schedule_work(&drm_fb_helper_restore_work); 456} 457 458static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { 459 .handler = drm_fb_helper_sysrq, 460 .help_msg = "force-fb(V)", 461 .action_msg = "Restore framebuffer console", 462}; 463#else 464static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { }; 465#endif 466#endif 467 468#if 0 469static void drm_fb_helper_on(struct fb_info *info) 470{ 471 struct drm_fb_helper *fb_helper = info->par; 472 struct drm_device *dev = fb_helper->dev; 473 struct drm_crtc *crtc; 474 struct drm_crtc_helper_funcs *crtc_funcs; 475 struct drm_connector *connector; 476 struct drm_encoder *encoder; 477 int i, j; 478 479 /* 480 * For each CRTC in this fb, turn the crtc on then, 481 * find all associated encoders and turn them on. 482 */ 483 sx_xlock(&dev->mode_config.mutex); 484 for (i = 0; i < fb_helper->crtc_count; i++) { 485 crtc = fb_helper->crtc_info[i].mode_set.crtc; 486 crtc_funcs = crtc->helper_private; 487 488 if (!crtc->enabled) 489 continue; 490 491 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); 492 493 /* Walk the connectors & encoders on this fb turning them on */ 494 for (j = 0; j < fb_helper->connector_count; j++) { 495 connector = fb_helper->connector_info[j]->connector; 496 connector->dpms = DRM_MODE_DPMS_ON; 497 drm_connector_property_set_value(connector, 498 dev->mode_config.dpms_property, 499 DRM_MODE_DPMS_ON); 500 } 501 /* Found a CRTC on this fb, now find encoders */ 502 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 503 if (encoder->crtc == crtc) { 504 struct drm_encoder_helper_funcs *encoder_funcs; 505 506 encoder_funcs = encoder->helper_private; 507 encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); 508 } 509 } 510 } 511 sx_xunlock(&dev->mode_config.mutex); 512} 513#endif 514 515#if 0 516static void drm_fb_helper_off(struct fb_info *info, int dpms_mode) 517{ 518 struct drm_fb_helper *fb_helper = info->par; 519 struct drm_device *dev = fb_helper->dev; 520 struct drm_crtc *crtc; 521 struct drm_crtc_helper_funcs *crtc_funcs; 522 struct drm_connector *connector; 523 struct drm_encoder *encoder; 524 int i, j; 525 526 /* 527 * For each CRTC in this fb, find all associated encoders 528 * and turn them off, then turn off the CRTC. 529 */ 530 sx_xlock(&dev->mode_config.mutex); 531 for (i = 0; i < fb_helper->crtc_count; i++) { 532 crtc = fb_helper->crtc_info[i].mode_set.crtc; 533 crtc_funcs = crtc->helper_private; 534 535 if (!crtc->enabled) 536 continue; 537 538 /* Walk the connectors on this fb and mark them off */ 539 for (j = 0; j < fb_helper->connector_count; j++) { 540 connector = fb_helper->connector_info[j]->connector; 541 connector->dpms = dpms_mode; 542 drm_connector_property_set_value(connector, 543 dev->mode_config.dpms_property, 544 dpms_mode); 545 } 546 /* Found a CRTC on this fb, now find encoders */ 547 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 548 if (encoder->crtc == crtc) { 549 struct drm_encoder_helper_funcs *encoder_funcs; 550 551 encoder_funcs = encoder->helper_private; 552 encoder_funcs->dpms(encoder, dpms_mode); 553 } 554 } 555 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); 556 } 557 sx_xunlock(&dev->mode_config.mutex); 558} 559#endif 560 561#if 0 562int drm_fb_helper_blank(int blank, struct fb_info *info) 563{ 564 switch (blank) { 565 /* Display: On; HSync: On, VSync: On */ 566 case FB_BLANK_UNBLANK: 567 drm_fb_helper_on(info); 568 break; 569 /* Display: Off; HSync: On, VSync: On */ 570 case FB_BLANK_NORMAL: 571 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 572 break; 573 /* Display: Off; HSync: Off, VSync: On */ 574 case FB_BLANK_HSYNC_SUSPEND: 575 drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); 576 break; 577 /* Display: Off; HSync: On, VSync: Off */ 578 case FB_BLANK_VSYNC_SUSPEND: 579 drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND); 580 break; 581 /* Display: Off; HSync: Off, VSync: Off */ 582 case FB_BLANK_POWERDOWN: 583 drm_fb_helper_off(info, DRM_MODE_DPMS_OFF); 584 break; 585 } 586 return 0; 587} 588#endif 589 590static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) 591{ 592 int i; 593 594 for (i = 0; i < helper->connector_count; i++) 595 free(helper->connector_info[i], DRM_MEM_KMS); 596 free(helper->connector_info, DRM_MEM_KMS); 597 for (i = 0; i < helper->crtc_count; i++) { 598 free(helper->crtc_info[i].mode_set.connectors, DRM_MEM_KMS); 599 if (helper->crtc_info[i].mode_set.mode) 600 drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode); 601 } 602 free(helper->crtc_info, DRM_MEM_KMS); 603} 604 605int drm_fb_helper_init(struct drm_device *dev, 606 struct drm_fb_helper *fb_helper, 607 int crtc_count, int max_conn_count) 608{ 609 struct drm_crtc *crtc; 610 int i; 611 612 fb_helper->dev = dev; 613 614 INIT_LIST_HEAD(&fb_helper->kernel_fb_list); 615 616 fb_helper->crtc_info = malloc(crtc_count * 617 sizeof(struct drm_fb_helper_crtc), DRM_MEM_KMS, M_WAITOK | M_ZERO); 618 619 fb_helper->crtc_count = crtc_count; 620 fb_helper->connector_info = malloc(dev->mode_config.num_connector * 621 sizeof(struct drm_fb_helper_connector *), DRM_MEM_KMS, 622 M_WAITOK | M_ZERO); 623 fb_helper->connector_count = 0; 624 625 for (i = 0; i < crtc_count; i++) { 626 fb_helper->crtc_info[i].mode_set.connectors = 627 malloc(max_conn_count * sizeof(struct drm_connector *), 628 DRM_MEM_KMS, M_WAITOK | M_ZERO); 629 630 fb_helper->crtc_info[i].mode_set.num_connectors = 0; 631 } 632 633 i = 0; 634 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 635 fb_helper->crtc_info[i].crtc_id = crtc->base.id; 636 fb_helper->crtc_info[i].mode_set.crtc = crtc; 637 i++; 638 } 639 fb_helper->conn_limit = max_conn_count; 640 return 0; 641} 642 643void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) 644{ 645 if (!list_empty(&fb_helper->kernel_fb_list)) { 646 list_del(&fb_helper->kernel_fb_list); 647 if (list_empty(&kernel_fb_helper_list)) { 648#if 0 649 printk(KERN_INFO "drm: unregistered panic notifier\n"); 650 atomic_notifier_chain_unregister(&panic_notifier_list, 651 &paniced); 652 unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); 653#endif 654 } 655 } 656 657 drm_fb_helper_crtc_free(fb_helper); 658 659} 660 661#if 0 662static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, 663 u16 blue, u16 regno, struct fb_info *info) 664{ 665 struct drm_fb_helper *fb_helper = info->par; 666 struct drm_framebuffer *fb = fb_helper->fb; 667 int pindex; 668 669 if (info->fix.visual == FB_VISUAL_trueCOLOR) { 670 u32 *palette; 671 u32 value; 672 /* place color in psuedopalette */ 673 if (regno > 16) 674 return -EINVAL; 675 palette = (u32 *)info->pseudo_palette; 676 red >>= (16 - info->var.red.length); 677 green >>= (16 - info->var.green.length); 678 blue >>= (16 - info->var.blue.length); 679 value = (red << info->var.red.offset) | 680 (green << info->var.green.offset) | 681 (blue << info->var.blue.offset); 682 if (info->var.transp.length > 0) { 683 u32 mask = (1 << info->var.transp.length) - 1; 684 mask <<= info->var.transp.offset; 685 value |= mask; 686 } 687 palette[regno] = value; 688 return 0; 689 } 690 691 pindex = regno; 692 693 if (fb->bits_per_pixel == 16) { 694 pindex = regno << 3; 695 696 if (fb->depth == 16 && regno > 63) 697 return -EINVAL; 698 if (fb->depth == 15 && regno > 31) 699 return -EINVAL; 700 701 if (fb->depth == 16) { 702 u16 r, g, b; 703 int i; 704 if (regno < 32) { 705 for (i = 0; i < 8; i++) 706 fb_helper->funcs->gamma_set(crtc, red, 707 green, blue, pindex + i); 708 } 709 710 fb_helper->funcs->gamma_get(crtc, &r, 711 &g, &b, 712 pindex >> 1); 713 714 for (i = 0; i < 4; i++) 715 fb_helper->funcs->gamma_set(crtc, r, 716 green, b, 717 (pindex >> 1) + i); 718 } 719 } 720 721 if (fb->depth != 16) 722 fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); 723 return 0; 724} 725#endif 726 727#if 0 728int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) 729{ 730 struct drm_fb_helper *fb_helper = info->par; 731 struct drm_crtc_helper_funcs *crtc_funcs; 732 u16 *red, *green, *blue, *transp; 733 struct drm_crtc *crtc; 734 int i, j, rc = 0; 735 int start; 736 737 for (i = 0; i < fb_helper->crtc_count; i++) { 738 crtc = fb_helper->crtc_info[i].mode_set.crtc; 739 crtc_funcs = crtc->helper_private; 740 741 red = cmap->red; 742 green = cmap->green; 743 blue = cmap->blue; 744 transp = cmap->transp; 745 start = cmap->start; 746 747 for (j = 0; j < cmap->len; j++) { 748 u16 hred, hgreen, hblue, htransp = 0xffff; 749 750 hred = *red++; 751 hgreen = *green++; 752 hblue = *blue++; 753 754 if (transp) 755 htransp = *transp++; 756 757 rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); 758 if (rc) 759 return rc; 760 } 761 crtc_funcs->load_lut(crtc); 762 } 763 return rc; 764} 765#endif 766 767#if 0 768int drm_fb_helper_check_var(struct fb_var_screeninfo *var, 769 struct fb_info *info) 770{ 771 struct drm_fb_helper *fb_helper = info->par; 772 struct drm_framebuffer *fb = fb_helper->fb; 773 int depth; 774 775 if (var->pixclock != 0 || in_dbg_master()) 776 return -EINVAL; 777 778 /* Need to resize the fb object !!! */ 779 if (var->bits_per_pixel > fb->bits_per_pixel || 780 var->xres > fb->width || var->yres > fb->height || 781 var->xres_virtual > fb->width || var->yres_virtual > fb->height) { 782 DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " 783 "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", 784 var->xres, var->yres, var->bits_per_pixel, 785 var->xres_virtual, var->yres_virtual, 786 fb->width, fb->height, fb->bits_per_pixel); 787 return -EINVAL; 788 } 789 790 switch (var->bits_per_pixel) { 791 case 16: 792 depth = (var->green.length == 6) ? 16 : 15; 793 break; 794 case 32: 795 depth = (var->transp.length > 0) ? 32 : 24; 796 break; 797 default: 798 depth = var->bits_per_pixel; 799 break; 800 } 801 802 switch (depth) { 803 case 8: 804 var->red.offset = 0; 805 var->green.offset = 0; 806 var->blue.offset = 0; 807 var->red.length = 8; 808 var->green.length = 8; 809 var->blue.length = 8; 810 var->transp.length = 0; 811 var->transp.offset = 0; 812 break; 813 case 15: 814 var->red.offset = 10; 815 var->green.offset = 5; 816 var->blue.offset = 0; 817 var->red.length = 5; 818 var->green.length = 5; 819 var->blue.length = 5; 820 var->transp.length = 1; 821 var->transp.offset = 15; 822 break; 823 case 16: 824 var->red.offset = 11; 825 var->green.offset = 5; 826 var->blue.offset = 0; 827 var->red.length = 5; 828 var->green.length = 6; 829 var->blue.length = 5; 830 var->transp.length = 0; 831 var->transp.offset = 0; 832 break; 833 case 24: 834 var->red.offset = 16; 835 var->green.offset = 8; 836 var->blue.offset = 0; 837 var->red.length = 8; 838 var->green.length = 8; 839 var->blue.length = 8; 840 var->transp.length = 0; 841 var->transp.offset = 0; 842 break; 843 case 32: 844 var->red.offset = 16; 845 var->green.offset = 8; 846 var->blue.offset = 0; 847 var->red.length = 8; 848 var->green.length = 8; 849 var->blue.length = 8; 850 var->transp.length = 8; 851 var->transp.offset = 24; 852 break; 853 default: 854 return -EINVAL; 855 } 856 return 0; 857} 858#endif 859 860#if 0 861/* this will let fbcon do the mode init */ 862int drm_fb_helper_set_par(struct fb_info *info) 863{ 864 struct drm_fb_helper *fb_helper = info->par; 865 struct drm_device *dev = fb_helper->dev; 866 struct fb_var_screeninfo *var = &info->var; 867 struct drm_crtc *crtc; 868 int ret; 869 int i; 870 871 if (var->pixclock != 0) { 872 DRM_ERROR("PIXEL CLOCK SET\n"); 873 return -EINVAL; 874 } 875 876 mutex_lock(&dev->mode_config.mutex); 877 for (i = 0; i < fb_helper->crtc_count; i++) { 878 crtc = fb_helper->crtc_info[i].mode_set.crtc; 879 ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set); 880 if (ret) { 881 mutex_unlock(&dev->mode_config.mutex); 882 return ret; 883 } 884 } 885 mutex_unlock(&dev->mode_config.mutex); 886 887 if (fb_helper->delayed_hotplug) { 888 fb_helper->delayed_hotplug = false; 889 drm_fb_helper_hotplug_event(fb_helper); 890 } 891 return 0; 892} 893#endif 894 895#if 0 896int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, 897 struct fb_info *info) 898{ 899 struct drm_fb_helper *fb_helper = info->par; 900 struct drm_device *dev = fb_helper->dev; 901 struct drm_mode_set *modeset; 902 struct drm_crtc *crtc; 903 int ret = 0; 904 int i; 905 906 mutex_lock(&dev->mode_config.mutex); 907 for (i = 0; i < fb_helper->crtc_count; i++) { 908 crtc = fb_helper->crtc_info[i].mode_set.crtc; 909 910 modeset = &fb_helper->crtc_info[i].mode_set; 911 912 modeset->x = var->xoffset; 913 modeset->y = var->yoffset; 914 915 if (modeset->num_connectors) { 916 ret = crtc->funcs->set_config(modeset); 917 if (!ret) { 918 info->var.xoffset = var->xoffset; 919 info->var.yoffset = var->yoffset; 920 } 921 } 922 } 923 mutex_unlock(&dev->mode_config.mutex); 924 return ret; 925} 926#endif 927 928int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, 929 int preferred_bpp) 930{ 931 int new_fb = 0; 932 int crtc_count = 0; 933 int i;
|
895#if 0
| |
896 struct fb_info *info;
| 934 struct fb_info *info;
|
897#endif
| |
898 struct drm_fb_helper_surface_size sizes; 899 int gamma_size = 0;
| 935 struct drm_fb_helper_surface_size sizes; 936 int gamma_size = 0;
|
| 937#if defined(__FreeBSD__) 938 struct vt_kms_softc *sc; 939 device_t kdev; 940#endif
|
900 901 memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size)); 902 sizes.surface_depth = 24; 903 sizes.surface_bpp = 32; 904 sizes.fb_width = (unsigned)-1; 905 sizes.fb_height = (unsigned)-1; 906 907 /* if driver picks 8 or 16 by default use that 908 for both depth/bpp */ 909 if (preferred_bpp != sizes.surface_bpp) { 910 sizes.surface_depth = sizes.surface_bpp = preferred_bpp; 911 } 912 /* first up get a count of crtcs now in use and new min/maxes width/heights */ 913 for (i = 0; i < fb_helper->connector_count; i++) { 914 struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i]; 915 struct drm_fb_helper_cmdline_mode *cmdline_mode; 916 917 cmdline_mode = &fb_helper_conn->cmdline_mode; 918 919 if (cmdline_mode->bpp_specified) { 920 switch (cmdline_mode->bpp) { 921 case 8: 922 sizes.surface_depth = sizes.surface_bpp = 8; 923 break; 924 case 15: 925 sizes.surface_depth = 15; 926 sizes.surface_bpp = 16; 927 break; 928 case 16: 929 sizes.surface_depth = sizes.surface_bpp = 16; 930 break; 931 case 24: 932 sizes.surface_depth = sizes.surface_bpp = 24; 933 break; 934 case 32: 935 sizes.surface_depth = 24; 936 sizes.surface_bpp = 32; 937 break; 938 } 939 break; 940 } 941 } 942 943 crtc_count = 0; 944 for (i = 0; i < fb_helper->crtc_count; i++) { 945 struct drm_display_mode *desired_mode; 946 desired_mode = fb_helper->crtc_info[i].desired_mode; 947 948 if (desired_mode) { 949 if (gamma_size == 0) 950 gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; 951 if (desired_mode->hdisplay < sizes.fb_width) 952 sizes.fb_width = desired_mode->hdisplay; 953 if (desired_mode->vdisplay < sizes.fb_height) 954 sizes.fb_height = desired_mode->vdisplay; 955 if (desired_mode->hdisplay > sizes.surface_width) 956 sizes.surface_width = desired_mode->hdisplay; 957 if (desired_mode->vdisplay > sizes.surface_height) 958 sizes.surface_height = desired_mode->vdisplay; 959 crtc_count++; 960 } 961 } 962 963 if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) { 964 /* hmm everyone went away - assume VGA cable just fell out 965 and will come back later. */ 966 DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n"); 967 sizes.fb_width = sizes.surface_width = 1024; 968 sizes.fb_height = sizes.surface_height = 768; 969 } 970 971 /* push down into drivers */ 972 new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); 973 if (new_fb < 0) 974 return new_fb; 975
| 941 942 memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size)); 943 sizes.surface_depth = 24; 944 sizes.surface_bpp = 32; 945 sizes.fb_width = (unsigned)-1; 946 sizes.fb_height = (unsigned)-1; 947 948 /* if driver picks 8 or 16 by default use that 949 for both depth/bpp */ 950 if (preferred_bpp != sizes.surface_bpp) { 951 sizes.surface_depth = sizes.surface_bpp = preferred_bpp; 952 } 953 /* first up get a count of crtcs now in use and new min/maxes width/heights */ 954 for (i = 0; i < fb_helper->connector_count; i++) { 955 struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i]; 956 struct drm_fb_helper_cmdline_mode *cmdline_mode; 957 958 cmdline_mode = &fb_helper_conn->cmdline_mode; 959 960 if (cmdline_mode->bpp_specified) { 961 switch (cmdline_mode->bpp) { 962 case 8: 963 sizes.surface_depth = sizes.surface_bpp = 8; 964 break; 965 case 15: 966 sizes.surface_depth = 15; 967 sizes.surface_bpp = 16; 968 break; 969 case 16: 970 sizes.surface_depth = sizes.surface_bpp = 16; 971 break; 972 case 24: 973 sizes.surface_depth = sizes.surface_bpp = 24; 974 break; 975 case 32: 976 sizes.surface_depth = 24; 977 sizes.surface_bpp = 32; 978 break; 979 } 980 break; 981 } 982 } 983 984 crtc_count = 0; 985 for (i = 0; i < fb_helper->crtc_count; i++) { 986 struct drm_display_mode *desired_mode; 987 desired_mode = fb_helper->crtc_info[i].desired_mode; 988 989 if (desired_mode) { 990 if (gamma_size == 0) 991 gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; 992 if (desired_mode->hdisplay < sizes.fb_width) 993 sizes.fb_width = desired_mode->hdisplay; 994 if (desired_mode->vdisplay < sizes.fb_height) 995 sizes.fb_height = desired_mode->vdisplay; 996 if (desired_mode->hdisplay > sizes.surface_width) 997 sizes.surface_width = desired_mode->hdisplay; 998 if (desired_mode->vdisplay > sizes.surface_height) 999 sizes.surface_height = desired_mode->vdisplay; 1000 crtc_count++; 1001 } 1002 } 1003 1004 if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) { 1005 /* hmm everyone went away - assume VGA cable just fell out 1006 and will come back later. */ 1007 DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n"); 1008 sizes.fb_width = sizes.surface_width = 1024; 1009 sizes.fb_height = sizes.surface_height = 768; 1010 } 1011 1012 /* push down into drivers */ 1013 new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); 1014 if (new_fb < 0) 1015 return new_fb; 1016
|
976#if 0
| 1017#if defined(__FreeBSD__) 1018 sc = malloc(sizeof(struct vt_kms_softc), DRM_MEM_KMS, 1019 M_WAITOK | M_ZERO); 1020 sc->fb_helper = fb_helper; 1021 TASK_INIT(&sc->fb_mode_task, 0, vt_restore_fbdev_mode, sc); 1022
|
977 info = fb_helper->fbdev;
| 1023 info = fb_helper->fbdev;
|
| 1024 1025 info->fb_name = device_get_nameunit(fb_helper->dev->device); 1026 info->fb_depth = fb_helper->fb->bits_per_pixel; 1027 info->fb_height = fb_helper->fb->height; 1028 info->fb_width = fb_helper->fb->width; 1029 info->fb_stride = fb_helper->fb->pitches[0]; 1030 info->fb_priv = sc; 1031 info->enter = &vt_kms_postswitch;
|
978#endif 979 980 /* set the fb pointer */ 981 for (i = 0; i < fb_helper->crtc_count; i++) { 982 fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; 983 } 984
| 1032#endif 1033 1034 /* set the fb pointer */ 1035 for (i = 0; i < fb_helper->crtc_count; i++) { 1036 fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; 1037 } 1038
|
985#if 0
| 1039#if defined(__FreeBSD__)
|
986 if (new_fb) {
| 1040 if (new_fb) {
|
| 1041 device_t fbd; 1042 int ret; 1043 1044 kdev = fb_helper->dev->device; 1045 fbd = device_add_child(kdev, "fbd", device_get_unit(kdev)); 1046 ret = device_probe_and_attach(fbd); 1047 if (ret != 0) 1048 DRM_ERROR("Failed to attach fbd device: %d\n", ret); 1049 } 1050#else 1051 if (new_fb) {
|
987 info->var.pixclock = 0; 988 if (register_framebuffer(info) < 0) { 989 return -EINVAL; 990 } 991 992 printf("fb%d: %s frame buffer device\n", info->node, 993 info->fix.id); 994 995 } else { 996 drm_fb_helper_set_par(info); 997 } 998 999 /* Switch back to kernel console on panic */ 1000 /* multi card linked list maybe */ 1001 if (list_empty(&kernel_fb_helper_list)) { 1002 printf("drm: registered panic notifier\n"); 1003 atomic_notifier_chain_register(&panic_notifier_list, 1004 &paniced); 1005 } 1006 if (new_fb) 1007 list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); 1008#endif
| 1052 info->var.pixclock = 0; 1053 if (register_framebuffer(info) < 0) { 1054 return -EINVAL; 1055 } 1056 1057 printf("fb%d: %s frame buffer device\n", info->node, 1058 info->fix.id); 1059 1060 } else { 1061 drm_fb_helper_set_par(info); 1062 } 1063 1064 /* Switch back to kernel console on panic */ 1065 /* multi card linked list maybe */ 1066 if (list_empty(&kernel_fb_helper_list)) { 1067 printf("drm: registered panic notifier\n"); 1068 atomic_notifier_chain_register(&panic_notifier_list, 1069 &paniced); 1070 } 1071 if (new_fb) 1072 list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); 1073#endif
|
1009
| |
1010 return 0; 1011} 1012 1013#if 0 1014void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, 1015 uint32_t depth) 1016{ 1017 info->fix.type = FB_TYPE_PACKED_PIXELS; 1018 info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : 1019 FB_VISUAL_trueCOLOR; 1020 info->fix.mmio_start = 0; 1021 info->fix.mmio_len = 0; 1022 info->fix.type_aux = 0; 1023 info->fix.xpanstep = 1; /* doing it in hw */ 1024 info->fix.ypanstep = 1; /* doing it in hw */ 1025 info->fix.ywrapstep = 0; 1026 info->fix.accel = FB_ACCEL_NONE; 1027 info->fix.type_aux = 0; 1028 1029 info->fix.line_length = pitch; 1030 return; 1031} 1032 1033void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, 1034 uint32_t fb_width, uint32_t fb_height) 1035{ 1036 struct drm_framebuffer *fb = fb_helper->fb; 1037 info->pseudo_palette = fb_helper->pseudo_palette; 1038 info->var.xres_virtual = fb->width; 1039 info->var.yres_virtual = fb->height; 1040 info->var.bits_per_pixel = fb->bits_per_pixel; 1041 info->var.accel_flags = FB_ACCELF_TEXT; 1042 info->var.xoffset = 0; 1043 info->var.yoffset = 0; 1044 info->var.activate = FB_ACTIVATE_NOW; 1045 info->var.height = -1; 1046 info->var.width = -1; 1047 1048 switch (fb->depth) { 1049 case 8: 1050 info->var.red.offset = 0; 1051 info->var.green.offset = 0; 1052 info->var.blue.offset = 0; 1053 info->var.red.length = 8; /* 8bit DAC */ 1054 info->var.green.length = 8; 1055 info->var.blue.length = 8; 1056 info->var.transp.offset = 0; 1057 info->var.transp.length = 0; 1058 break; 1059 case 15: 1060 info->var.red.offset = 10; 1061 info->var.green.offset = 5; 1062 info->var.blue.offset = 0; 1063 info->var.red.length = 5; 1064 info->var.green.length = 5; 1065 info->var.blue.length = 5; 1066 info->var.transp.offset = 15; 1067 info->var.transp.length = 1; 1068 break; 1069 case 16: 1070 info->var.red.offset = 11; 1071 info->var.green.offset = 5; 1072 info->var.blue.offset = 0; 1073 info->var.red.length = 5; 1074 info->var.green.length = 6; 1075 info->var.blue.length = 5; 1076 info->var.transp.offset = 0; 1077 break; 1078 case 24: 1079 info->var.red.offset = 16; 1080 info->var.green.offset = 8; 1081 info->var.blue.offset = 0; 1082 info->var.red.length = 8; 1083 info->var.green.length = 8; 1084 info->var.blue.length = 8; 1085 info->var.transp.offset = 0; 1086 info->var.transp.length = 0; 1087 break; 1088 case 32: 1089 info->var.red.offset = 16; 1090 info->var.green.offset = 8; 1091 info->var.blue.offset = 0; 1092 info->var.red.length = 8; 1093 info->var.green.length = 8; 1094 info->var.blue.length = 8; 1095 info->var.transp.offset = 24; 1096 info->var.transp.length = 8; 1097 break; 1098 default: 1099 break; 1100 } 1101 1102 info->var.xres = fb_width; 1103 info->var.yres = fb_height; 1104} 1105#endif 1106 1107static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper, 1108 uint32_t maxX, 1109 uint32_t maxY) 1110{ 1111 struct drm_connector *connector; 1112 int count = 0; 1113 int i; 1114 1115 for (i = 0; i < fb_helper->connector_count; i++) { 1116 connector = fb_helper->connector_info[i]->connector; 1117 count += connector->funcs->fill_modes(connector, maxX, maxY); 1118 } 1119 1120 return count; 1121} 1122 1123static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height) 1124{ 1125 struct drm_display_mode *mode; 1126 1127 list_for_each_entry(mode, &fb_connector->connector->modes, head) { 1128 if (drm_mode_width(mode) > width || 1129 drm_mode_height(mode) > height) 1130 continue; 1131 if (mode->type & DRM_MODE_TYPE_PREFERRED) 1132 return mode; 1133 } 1134 return NULL; 1135} 1136 1137static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector) 1138{ 1139 struct drm_fb_helper_cmdline_mode *cmdline_mode; 1140 cmdline_mode = &fb_connector->cmdline_mode; 1141 return cmdline_mode->specified; 1142} 1143 1144static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, 1145 int width, int height) 1146{ 1147 struct drm_cmdline_mode *cmdline_mode; 1148 struct drm_display_mode *mode = NULL; 1149 1150 cmdline_mode = &fb_helper_conn->cmdline_mode1; 1151 if (cmdline_mode->specified == false && 1152 !drm_fetch_cmdline_mode_from_kenv(fb_helper_conn->connector, 1153 cmdline_mode)) 1154 return (NULL); 1155 1156 /* attempt to find a matching mode in the list of modes 1157 * we have gotten so far, if not add a CVT mode that conforms 1158 */ 1159 if (cmdline_mode->rb || cmdline_mode->margins) 1160 goto create_mode; 1161 1162 list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { 1163 /* check width/height */ 1164 if (mode->hdisplay != cmdline_mode->xres || 1165 mode->vdisplay != cmdline_mode->yres) 1166 continue; 1167 1168 if (cmdline_mode->refresh_specified) { 1169 if (mode->vrefresh != cmdline_mode->refresh) 1170 continue; 1171 } 1172 1173 if (cmdline_mode->interlace) { 1174 if (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) 1175 continue; 1176 } 1177 return mode; 1178 } 1179 1180create_mode: 1181 if (cmdline_mode->cvt) 1182 mode = drm_cvt_mode(fb_helper_conn->connector->dev, 1183 cmdline_mode->xres, cmdline_mode->yres, 1184 cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, 1185 cmdline_mode->rb, cmdline_mode->interlace, 1186 cmdline_mode->margins); 1187 else 1188 mode = drm_gtf_mode(fb_helper_conn->connector->dev, 1189 cmdline_mode->xres, cmdline_mode->yres, 1190 cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, 1191 cmdline_mode->interlace, 1192 cmdline_mode->margins); 1193 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1194 list_add(&mode->head, &fb_helper_conn->connector->modes); 1195 return mode; 1196} 1197 1198static bool drm_connector_enabled(struct drm_connector *connector, bool strict) 1199{ 1200 bool enable; 1201 1202 if (strict) { 1203 enable = connector->status == connector_status_connected; 1204 } else { 1205 enable = connector->status != connector_status_disconnected; 1206 } 1207 return enable; 1208} 1209 1210static void drm_enable_connectors(struct drm_fb_helper *fb_helper, 1211 bool *enabled) 1212{ 1213 bool any_enabled = false; 1214 struct drm_connector *connector; 1215 int i = 0; 1216 1217 for (i = 0; i < fb_helper->connector_count; i++) { 1218 connector = fb_helper->connector_info[i]->connector; 1219 enabled[i] = drm_connector_enabled(connector, true); 1220 DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, 1221 enabled[i] ? "yes" : "no"); 1222 any_enabled |= enabled[i]; 1223 } 1224 1225 if (any_enabled) 1226 return; 1227 1228 for (i = 0; i < fb_helper->connector_count; i++) { 1229 connector = fb_helper->connector_info[i]->connector; 1230 enabled[i] = drm_connector_enabled(connector, false); 1231 } 1232} 1233 1234static bool drm_target_cloned(struct drm_fb_helper *fb_helper, 1235 struct drm_display_mode **modes, 1236 bool *enabled, int width, int height) 1237{ 1238 int count, i, j; 1239 bool can_clone = false; 1240 struct drm_fb_helper_connector *fb_helper_conn; 1241 struct drm_display_mode *dmt_mode, *mode; 1242 1243 /* only contemplate cloning in the single crtc case */ 1244 if (fb_helper->crtc_count > 1) 1245 return false; 1246 1247 count = 0; 1248 for (i = 0; i < fb_helper->connector_count; i++) { 1249 if (enabled[i]) 1250 count++; 1251 } 1252 1253 /* only contemplate cloning if more than one connector is enabled */ 1254 if (count <= 1) 1255 return false; 1256 1257 /* check the command line or if nothing common pick 1024x768 */ 1258 can_clone = true; 1259 for (i = 0; i < fb_helper->connector_count; i++) { 1260 if (!enabled[i]) 1261 continue; 1262 fb_helper_conn = fb_helper->connector_info[i]; 1263 modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); 1264 if (!modes[i]) { 1265 can_clone = false; 1266 break; 1267 } 1268 for (j = 0; j < i; j++) { 1269 if (!enabled[j]) 1270 continue; 1271 if (!drm_mode_equal(modes[j], modes[i])) 1272 can_clone = false; 1273 } 1274 } 1275 1276 if (can_clone) { 1277 DRM_DEBUG_KMS("can clone using command line\n"); 1278 return true; 1279 } 1280 1281 /* try and find a 1024x768 mode on each connector */ 1282 can_clone = true; 1283 dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60); 1284 1285 for (i = 0; i < fb_helper->connector_count; i++) { 1286 1287 if (!enabled[i]) 1288 continue; 1289 1290 fb_helper_conn = fb_helper->connector_info[i]; 1291 list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { 1292 if (drm_mode_equal(mode, dmt_mode)) 1293 modes[i] = mode; 1294 } 1295 if (!modes[i]) 1296 can_clone = false; 1297 } 1298 1299 if (can_clone) { 1300 DRM_DEBUG_KMS("can clone using 1024x768\n"); 1301 return true; 1302 } 1303 DRM_INFO("kms: can't enable cloning when we probably wanted to.\n"); 1304 return false; 1305} 1306 1307static bool drm_target_preferred(struct drm_fb_helper *fb_helper, 1308 struct drm_display_mode **modes, 1309 bool *enabled, int width, int height) 1310{ 1311 struct drm_fb_helper_connector *fb_helper_conn; 1312 int i; 1313 1314 for (i = 0; i < fb_helper->connector_count; i++) { 1315 fb_helper_conn = fb_helper->connector_info[i]; 1316 1317 if (enabled[i] == false) 1318 continue; 1319 1320 DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", 1321 fb_helper_conn->connector->base.id); 1322 1323 /* got for command line mode first */ 1324 modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); 1325 if (!modes[i]) { 1326 DRM_DEBUG_KMS("looking for preferred mode on connector %d\n", 1327 fb_helper_conn->connector->base.id); 1328 modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); 1329 } 1330 /* No preferred modes, pick one off the list */ 1331 if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) { 1332 list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head) 1333 break; 1334 } 1335 DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : 1336 "none"); 1337 } 1338 return true; 1339} 1340 1341static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, 1342 struct drm_fb_helper_crtc **best_crtcs, 1343 struct drm_display_mode **modes, 1344 int n, int width, int height) 1345{ 1346 int c, o; 1347 struct drm_device *dev = fb_helper->dev; 1348 struct drm_connector *connector; 1349 struct drm_connector_helper_funcs *connector_funcs; 1350 struct drm_encoder *encoder; 1351 struct drm_fb_helper_crtc *best_crtc; 1352 int my_score, best_score, score; 1353 struct drm_fb_helper_crtc **crtcs, *crtc; 1354 struct drm_fb_helper_connector *fb_helper_conn; 1355 1356 if (n == fb_helper->connector_count) 1357 return 0; 1358 1359 fb_helper_conn = fb_helper->connector_info[n]; 1360 connector = fb_helper_conn->connector; 1361 1362 best_crtcs[n] = NULL; 1363 best_crtc = NULL; 1364 best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); 1365 if (modes[n] == NULL) 1366 return best_score; 1367 1368 crtcs = malloc(dev->mode_config.num_connector * 1369 sizeof(struct drm_fb_helper_crtc *), DRM_MEM_KMS, 1370 M_WAITOK | M_ZERO); 1371 1372 my_score = 1; 1373 if (connector->status == connector_status_connected) 1374 my_score++; 1375 if (drm_has_cmdline_mode(fb_helper_conn)) 1376 my_score++; 1377 if (drm_has_preferred_mode(fb_helper_conn, width, height)) 1378 my_score++; 1379 1380 connector_funcs = connector->helper_private; 1381 encoder = connector_funcs->best_encoder(connector); 1382 if (!encoder) 1383 goto out; 1384 1385 /* select a crtc for this connector and then attempt to configure 1386 remaining connectors */ 1387 for (c = 0; c < fb_helper->crtc_count; c++) { 1388 crtc = &fb_helper->crtc_info[c]; 1389 1390 if ((encoder->possible_crtcs & (1 << c)) == 0) { 1391 continue; 1392 } 1393 1394 for (o = 0; o < n; o++) 1395 if (best_crtcs[o] == crtc) 1396 break; 1397 1398 if (o < n) { 1399 /* ignore cloning unless only a single crtc */ 1400 if (fb_helper->crtc_count > 1) 1401 continue; 1402 1403 if (!drm_mode_equal(modes[o], modes[n])) 1404 continue; 1405 } 1406 1407 crtcs[n] = crtc; 1408 memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); 1409 score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, 1410 width, height); 1411 if (score > best_score) { 1412 best_crtc = crtc; 1413 best_score = score; 1414 memcpy(best_crtcs, crtcs, 1415 dev->mode_config.num_connector * 1416 sizeof(struct drm_fb_helper_crtc *)); 1417 } 1418 } 1419out: 1420 free(crtcs, DRM_MEM_KMS); 1421 return best_score; 1422} 1423 1424static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) 1425{ 1426 struct drm_device *dev = fb_helper->dev; 1427 struct drm_fb_helper_crtc **crtcs; 1428 struct drm_display_mode **modes; 1429 struct drm_encoder *encoder; 1430 struct drm_mode_set *modeset; 1431 bool *enabled; 1432 int width, height; 1433 int i, ret; 1434 1435 DRM_DEBUG_KMS("\n"); 1436 1437 width = dev->mode_config.max_width; 1438 height = dev->mode_config.max_height; 1439 1440 /* clean out all the encoder/crtc combos */ 1441 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1442 encoder->crtc = NULL; 1443 } 1444 1445 crtcs = malloc(dev->mode_config.num_connector * 1446 sizeof(struct drm_fb_helper_crtc *), DRM_MEM_KMS, 1447 M_WAITOK | M_ZERO); 1448 modes = malloc(dev->mode_config.num_connector * 1449 sizeof(struct drm_display_mode *), DRM_MEM_KMS, 1450 M_WAITOK | M_ZERO); 1451 enabled = malloc(dev->mode_config.num_connector * 1452 sizeof(bool), DRM_MEM_KMS, M_WAITOK | M_ZERO); 1453 1454 drm_enable_connectors(fb_helper, enabled); 1455 1456 ret = drm_target_cloned(fb_helper, modes, enabled, width, height); 1457 if (!ret) { 1458 ret = drm_target_preferred(fb_helper, modes, enabled, width, height); 1459 if (!ret) 1460 DRM_ERROR("Unable to find initial modes\n"); 1461 } 1462 1463 DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height); 1464 1465 drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height); 1466 1467 /* need to set the modesets up here for use later */ 1468 /* fill out the connector<->crtc mappings into the modesets */ 1469 for (i = 0; i < fb_helper->crtc_count; i++) { 1470 modeset = &fb_helper->crtc_info[i].mode_set; 1471 modeset->num_connectors = 0; 1472 } 1473 1474 for (i = 0; i < fb_helper->connector_count; i++) { 1475 struct drm_display_mode *mode = modes[i]; 1476 struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; 1477 modeset = &fb_crtc->mode_set; 1478 1479 if (mode && fb_crtc) { 1480 DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", 1481 mode->name, fb_crtc->mode_set.crtc->base.id); 1482 fb_crtc->desired_mode = mode; 1483 if (modeset->mode) 1484 drm_mode_destroy(dev, modeset->mode); 1485 modeset->mode = drm_mode_duplicate(dev, 1486 fb_crtc->desired_mode); 1487 modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; 1488 } 1489 } 1490 1491 free(crtcs, DRM_MEM_KMS); 1492 free(modes, DRM_MEM_KMS); 1493 free(enabled, DRM_MEM_KMS); 1494} 1495 1496/** 1497 * drm_helper_initial_config - setup a sane initial connector configuration 1498 * @dev: DRM device 1499 * 1500 * LOCKING: 1501 * Called at init time, must take mode config lock. 1502 * 1503 * Scan the CRTCs and connectors and try to put together an initial setup. 1504 * At the moment, this is a cloned configuration across all heads with 1505 * a new framebuffer object as the backing store. 1506 * 1507 * RETURNS: 1508 * Zero if everything went ok, nonzero otherwise. 1509 */ 1510bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) 1511{ 1512 struct drm_device *dev = fb_helper->dev; 1513 int count = 0; 1514 1515 /* disable all the possible outputs/crtcs before entering KMS mode */ 1516 drm_helper_disable_unused_functions(fb_helper->dev); 1517 1518 drm_fb_helper_parse_command_line(fb_helper); 1519 1520 count = drm_fb_helper_probe_connector_modes(fb_helper, 1521 dev->mode_config.max_width, 1522 dev->mode_config.max_height); 1523 /* 1524 * we shouldn't end up with no modes here. 1525 */ 1526 if (count == 0) { 1527 printf("No connectors reported connected with modes\n"); 1528 } 1529 drm_setup_crtcs(fb_helper); 1530 1531 return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); 1532} 1533 1534int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) 1535{ 1536 struct drm_device *dev = fb_helper->dev; 1537 int count = 0; 1538 u32 max_width, max_height, bpp_sel; 1539 bool bound = false, crtcs_bound = false; 1540 struct drm_crtc *crtc; 1541 1542 if (!fb_helper->fb) 1543 return 0; 1544 1545 sx_xlock(&dev->mode_config.mutex); 1546 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1547 if (crtc->fb) 1548 crtcs_bound = true; 1549 if (crtc->fb == fb_helper->fb) 1550 bound = true; 1551 } 1552 1553 if (!bound && crtcs_bound) { 1554 fb_helper->delayed_hotplug = true; 1555 sx_xunlock(&dev->mode_config.mutex); 1556 return 0; 1557 } 1558 DRM_DEBUG_KMS("\n"); 1559 1560 max_width = fb_helper->fb->width; 1561 max_height = fb_helper->fb->height; 1562 bpp_sel = fb_helper->fb->bits_per_pixel; 1563 1564 count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, 1565 max_height); 1566 drm_setup_crtcs(fb_helper); 1567 sx_xunlock(&dev->mode_config.mutex); 1568 1569 return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); 1570} 1571
| 1074 return 0; 1075} 1076 1077#if 0 1078void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, 1079 uint32_t depth) 1080{ 1081 info->fix.type = FB_TYPE_PACKED_PIXELS; 1082 info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : 1083 FB_VISUAL_trueCOLOR; 1084 info->fix.mmio_start = 0; 1085 info->fix.mmio_len = 0; 1086 info->fix.type_aux = 0; 1087 info->fix.xpanstep = 1; /* doing it in hw */ 1088 info->fix.ypanstep = 1; /* doing it in hw */ 1089 info->fix.ywrapstep = 0; 1090 info->fix.accel = FB_ACCEL_NONE; 1091 info->fix.type_aux = 0; 1092 1093 info->fix.line_length = pitch; 1094 return; 1095} 1096 1097void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, 1098 uint32_t fb_width, uint32_t fb_height) 1099{ 1100 struct drm_framebuffer *fb = fb_helper->fb; 1101 info->pseudo_palette = fb_helper->pseudo_palette; 1102 info->var.xres_virtual = fb->width; 1103 info->var.yres_virtual = fb->height; 1104 info->var.bits_per_pixel = fb->bits_per_pixel; 1105 info->var.accel_flags = FB_ACCELF_TEXT; 1106 info->var.xoffset = 0; 1107 info->var.yoffset = 0; 1108 info->var.activate = FB_ACTIVATE_NOW; 1109 info->var.height = -1; 1110 info->var.width = -1; 1111 1112 switch (fb->depth) { 1113 case 8: 1114 info->var.red.offset = 0; 1115 info->var.green.offset = 0; 1116 info->var.blue.offset = 0; 1117 info->var.red.length = 8; /* 8bit DAC */ 1118 info->var.green.length = 8; 1119 info->var.blue.length = 8; 1120 info->var.transp.offset = 0; 1121 info->var.transp.length = 0; 1122 break; 1123 case 15: 1124 info->var.red.offset = 10; 1125 info->var.green.offset = 5; 1126 info->var.blue.offset = 0; 1127 info->var.red.length = 5; 1128 info->var.green.length = 5; 1129 info->var.blue.length = 5; 1130 info->var.transp.offset = 15; 1131 info->var.transp.length = 1; 1132 break; 1133 case 16: 1134 info->var.red.offset = 11; 1135 info->var.green.offset = 5; 1136 info->var.blue.offset = 0; 1137 info->var.red.length = 5; 1138 info->var.green.length = 6; 1139 info->var.blue.length = 5; 1140 info->var.transp.offset = 0; 1141 break; 1142 case 24: 1143 info->var.red.offset = 16; 1144 info->var.green.offset = 8; 1145 info->var.blue.offset = 0; 1146 info->var.red.length = 8; 1147 info->var.green.length = 8; 1148 info->var.blue.length = 8; 1149 info->var.transp.offset = 0; 1150 info->var.transp.length = 0; 1151 break; 1152 case 32: 1153 info->var.red.offset = 16; 1154 info->var.green.offset = 8; 1155 info->var.blue.offset = 0; 1156 info->var.red.length = 8; 1157 info->var.green.length = 8; 1158 info->var.blue.length = 8; 1159 info->var.transp.offset = 24; 1160 info->var.transp.length = 8; 1161 break; 1162 default: 1163 break; 1164 } 1165 1166 info->var.xres = fb_width; 1167 info->var.yres = fb_height; 1168} 1169#endif 1170 1171static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper, 1172 uint32_t maxX, 1173 uint32_t maxY) 1174{ 1175 struct drm_connector *connector; 1176 int count = 0; 1177 int i; 1178 1179 for (i = 0; i < fb_helper->connector_count; i++) { 1180 connector = fb_helper->connector_info[i]->connector; 1181 count += connector->funcs->fill_modes(connector, maxX, maxY); 1182 } 1183 1184 return count; 1185} 1186 1187static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height) 1188{ 1189 struct drm_display_mode *mode; 1190 1191 list_for_each_entry(mode, &fb_connector->connector->modes, head) { 1192 if (drm_mode_width(mode) > width || 1193 drm_mode_height(mode) > height) 1194 continue; 1195 if (mode->type & DRM_MODE_TYPE_PREFERRED) 1196 return mode; 1197 } 1198 return NULL; 1199} 1200 1201static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector) 1202{ 1203 struct drm_fb_helper_cmdline_mode *cmdline_mode; 1204 cmdline_mode = &fb_connector->cmdline_mode; 1205 return cmdline_mode->specified; 1206} 1207 1208static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, 1209 int width, int height) 1210{ 1211 struct drm_cmdline_mode *cmdline_mode; 1212 struct drm_display_mode *mode = NULL; 1213 1214 cmdline_mode = &fb_helper_conn->cmdline_mode1; 1215 if (cmdline_mode->specified == false && 1216 !drm_fetch_cmdline_mode_from_kenv(fb_helper_conn->connector, 1217 cmdline_mode)) 1218 return (NULL); 1219 1220 /* attempt to find a matching mode in the list of modes 1221 * we have gotten so far, if not add a CVT mode that conforms 1222 */ 1223 if (cmdline_mode->rb || cmdline_mode->margins) 1224 goto create_mode; 1225 1226 list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { 1227 /* check width/height */ 1228 if (mode->hdisplay != cmdline_mode->xres || 1229 mode->vdisplay != cmdline_mode->yres) 1230 continue; 1231 1232 if (cmdline_mode->refresh_specified) { 1233 if (mode->vrefresh != cmdline_mode->refresh) 1234 continue; 1235 } 1236 1237 if (cmdline_mode->interlace) { 1238 if (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) 1239 continue; 1240 } 1241 return mode; 1242 } 1243 1244create_mode: 1245 if (cmdline_mode->cvt) 1246 mode = drm_cvt_mode(fb_helper_conn->connector->dev, 1247 cmdline_mode->xres, cmdline_mode->yres, 1248 cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, 1249 cmdline_mode->rb, cmdline_mode->interlace, 1250 cmdline_mode->margins); 1251 else 1252 mode = drm_gtf_mode(fb_helper_conn->connector->dev, 1253 cmdline_mode->xres, cmdline_mode->yres, 1254 cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, 1255 cmdline_mode->interlace, 1256 cmdline_mode->margins); 1257 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1258 list_add(&mode->head, &fb_helper_conn->connector->modes); 1259 return mode; 1260} 1261 1262static bool drm_connector_enabled(struct drm_connector *connector, bool strict) 1263{ 1264 bool enable; 1265 1266 if (strict) { 1267 enable = connector->status == connector_status_connected; 1268 } else { 1269 enable = connector->status != connector_status_disconnected; 1270 } 1271 return enable; 1272} 1273 1274static void drm_enable_connectors(struct drm_fb_helper *fb_helper, 1275 bool *enabled) 1276{ 1277 bool any_enabled = false; 1278 struct drm_connector *connector; 1279 int i = 0; 1280 1281 for (i = 0; i < fb_helper->connector_count; i++) { 1282 connector = fb_helper->connector_info[i]->connector; 1283 enabled[i] = drm_connector_enabled(connector, true); 1284 DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, 1285 enabled[i] ? "yes" : "no"); 1286 any_enabled |= enabled[i]; 1287 } 1288 1289 if (any_enabled) 1290 return; 1291 1292 for (i = 0; i < fb_helper->connector_count; i++) { 1293 connector = fb_helper->connector_info[i]->connector; 1294 enabled[i] = drm_connector_enabled(connector, false); 1295 } 1296} 1297 1298static bool drm_target_cloned(struct drm_fb_helper *fb_helper, 1299 struct drm_display_mode **modes, 1300 bool *enabled, int width, int height) 1301{ 1302 int count, i, j; 1303 bool can_clone = false; 1304 struct drm_fb_helper_connector *fb_helper_conn; 1305 struct drm_display_mode *dmt_mode, *mode; 1306 1307 /* only contemplate cloning in the single crtc case */ 1308 if (fb_helper->crtc_count > 1) 1309 return false; 1310 1311 count = 0; 1312 for (i = 0; i < fb_helper->connector_count; i++) { 1313 if (enabled[i]) 1314 count++; 1315 } 1316 1317 /* only contemplate cloning if more than one connector is enabled */ 1318 if (count <= 1) 1319 return false; 1320 1321 /* check the command line or if nothing common pick 1024x768 */ 1322 can_clone = true; 1323 for (i = 0; i < fb_helper->connector_count; i++) { 1324 if (!enabled[i]) 1325 continue; 1326 fb_helper_conn = fb_helper->connector_info[i]; 1327 modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); 1328 if (!modes[i]) { 1329 can_clone = false; 1330 break; 1331 } 1332 for (j = 0; j < i; j++) { 1333 if (!enabled[j]) 1334 continue; 1335 if (!drm_mode_equal(modes[j], modes[i])) 1336 can_clone = false; 1337 } 1338 } 1339 1340 if (can_clone) { 1341 DRM_DEBUG_KMS("can clone using command line\n"); 1342 return true; 1343 } 1344 1345 /* try and find a 1024x768 mode on each connector */ 1346 can_clone = true; 1347 dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60); 1348 1349 for (i = 0; i < fb_helper->connector_count; i++) { 1350 1351 if (!enabled[i]) 1352 continue; 1353 1354 fb_helper_conn = fb_helper->connector_info[i]; 1355 list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { 1356 if (drm_mode_equal(mode, dmt_mode)) 1357 modes[i] = mode; 1358 } 1359 if (!modes[i]) 1360 can_clone = false; 1361 } 1362 1363 if (can_clone) { 1364 DRM_DEBUG_KMS("can clone using 1024x768\n"); 1365 return true; 1366 } 1367 DRM_INFO("kms: can't enable cloning when we probably wanted to.\n"); 1368 return false; 1369} 1370 1371static bool drm_target_preferred(struct drm_fb_helper *fb_helper, 1372 struct drm_display_mode **modes, 1373 bool *enabled, int width, int height) 1374{ 1375 struct drm_fb_helper_connector *fb_helper_conn; 1376 int i; 1377 1378 for (i = 0; i < fb_helper->connector_count; i++) { 1379 fb_helper_conn = fb_helper->connector_info[i]; 1380 1381 if (enabled[i] == false) 1382 continue; 1383 1384 DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", 1385 fb_helper_conn->connector->base.id); 1386 1387 /* got for command line mode first */ 1388 modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); 1389 if (!modes[i]) { 1390 DRM_DEBUG_KMS("looking for preferred mode on connector %d\n", 1391 fb_helper_conn->connector->base.id); 1392 modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); 1393 } 1394 /* No preferred modes, pick one off the list */ 1395 if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) { 1396 list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head) 1397 break; 1398 } 1399 DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : 1400 "none"); 1401 } 1402 return true; 1403} 1404 1405static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, 1406 struct drm_fb_helper_crtc **best_crtcs, 1407 struct drm_display_mode **modes, 1408 int n, int width, int height) 1409{ 1410 int c, o; 1411 struct drm_device *dev = fb_helper->dev; 1412 struct drm_connector *connector; 1413 struct drm_connector_helper_funcs *connector_funcs; 1414 struct drm_encoder *encoder; 1415 struct drm_fb_helper_crtc *best_crtc; 1416 int my_score, best_score, score; 1417 struct drm_fb_helper_crtc **crtcs, *crtc; 1418 struct drm_fb_helper_connector *fb_helper_conn; 1419 1420 if (n == fb_helper->connector_count) 1421 return 0; 1422 1423 fb_helper_conn = fb_helper->connector_info[n]; 1424 connector = fb_helper_conn->connector; 1425 1426 best_crtcs[n] = NULL; 1427 best_crtc = NULL; 1428 best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); 1429 if (modes[n] == NULL) 1430 return best_score; 1431 1432 crtcs = malloc(dev->mode_config.num_connector * 1433 sizeof(struct drm_fb_helper_crtc *), DRM_MEM_KMS, 1434 M_WAITOK | M_ZERO); 1435 1436 my_score = 1; 1437 if (connector->status == connector_status_connected) 1438 my_score++; 1439 if (drm_has_cmdline_mode(fb_helper_conn)) 1440 my_score++; 1441 if (drm_has_preferred_mode(fb_helper_conn, width, height)) 1442 my_score++; 1443 1444 connector_funcs = connector->helper_private; 1445 encoder = connector_funcs->best_encoder(connector); 1446 if (!encoder) 1447 goto out; 1448 1449 /* select a crtc for this connector and then attempt to configure 1450 remaining connectors */ 1451 for (c = 0; c < fb_helper->crtc_count; c++) { 1452 crtc = &fb_helper->crtc_info[c]; 1453 1454 if ((encoder->possible_crtcs & (1 << c)) == 0) { 1455 continue; 1456 } 1457 1458 for (o = 0; o < n; o++) 1459 if (best_crtcs[o] == crtc) 1460 break; 1461 1462 if (o < n) { 1463 /* ignore cloning unless only a single crtc */ 1464 if (fb_helper->crtc_count > 1) 1465 continue; 1466 1467 if (!drm_mode_equal(modes[o], modes[n])) 1468 continue; 1469 } 1470 1471 crtcs[n] = crtc; 1472 memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); 1473 score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, 1474 width, height); 1475 if (score > best_score) { 1476 best_crtc = crtc; 1477 best_score = score; 1478 memcpy(best_crtcs, crtcs, 1479 dev->mode_config.num_connector * 1480 sizeof(struct drm_fb_helper_crtc *)); 1481 } 1482 } 1483out: 1484 free(crtcs, DRM_MEM_KMS); 1485 return best_score; 1486} 1487 1488static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) 1489{ 1490 struct drm_device *dev = fb_helper->dev; 1491 struct drm_fb_helper_crtc **crtcs; 1492 struct drm_display_mode **modes; 1493 struct drm_encoder *encoder; 1494 struct drm_mode_set *modeset; 1495 bool *enabled; 1496 int width, height; 1497 int i, ret; 1498 1499 DRM_DEBUG_KMS("\n"); 1500 1501 width = dev->mode_config.max_width; 1502 height = dev->mode_config.max_height; 1503 1504 /* clean out all the encoder/crtc combos */ 1505 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1506 encoder->crtc = NULL; 1507 } 1508 1509 crtcs = malloc(dev->mode_config.num_connector * 1510 sizeof(struct drm_fb_helper_crtc *), DRM_MEM_KMS, 1511 M_WAITOK | M_ZERO); 1512 modes = malloc(dev->mode_config.num_connector * 1513 sizeof(struct drm_display_mode *), DRM_MEM_KMS, 1514 M_WAITOK | M_ZERO); 1515 enabled = malloc(dev->mode_config.num_connector * 1516 sizeof(bool), DRM_MEM_KMS, M_WAITOK | M_ZERO); 1517 1518 drm_enable_connectors(fb_helper, enabled); 1519 1520 ret = drm_target_cloned(fb_helper, modes, enabled, width, height); 1521 if (!ret) { 1522 ret = drm_target_preferred(fb_helper, modes, enabled, width, height); 1523 if (!ret) 1524 DRM_ERROR("Unable to find initial modes\n"); 1525 } 1526 1527 DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height); 1528 1529 drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height); 1530 1531 /* need to set the modesets up here for use later */ 1532 /* fill out the connector<->crtc mappings into the modesets */ 1533 for (i = 0; i < fb_helper->crtc_count; i++) { 1534 modeset = &fb_helper->crtc_info[i].mode_set; 1535 modeset->num_connectors = 0; 1536 } 1537 1538 for (i = 0; i < fb_helper->connector_count; i++) { 1539 struct drm_display_mode *mode = modes[i]; 1540 struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; 1541 modeset = &fb_crtc->mode_set; 1542 1543 if (mode && fb_crtc) { 1544 DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", 1545 mode->name, fb_crtc->mode_set.crtc->base.id); 1546 fb_crtc->desired_mode = mode; 1547 if (modeset->mode) 1548 drm_mode_destroy(dev, modeset->mode); 1549 modeset->mode = drm_mode_duplicate(dev, 1550 fb_crtc->desired_mode); 1551 modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; 1552 } 1553 } 1554 1555 free(crtcs, DRM_MEM_KMS); 1556 free(modes, DRM_MEM_KMS); 1557 free(enabled, DRM_MEM_KMS); 1558} 1559 1560/** 1561 * drm_helper_initial_config - setup a sane initial connector configuration 1562 * @dev: DRM device 1563 * 1564 * LOCKING: 1565 * Called at init time, must take mode config lock. 1566 * 1567 * Scan the CRTCs and connectors and try to put together an initial setup. 1568 * At the moment, this is a cloned configuration across all heads with 1569 * a new framebuffer object as the backing store. 1570 * 1571 * RETURNS: 1572 * Zero if everything went ok, nonzero otherwise. 1573 */ 1574bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) 1575{ 1576 struct drm_device *dev = fb_helper->dev; 1577 int count = 0; 1578 1579 /* disable all the possible outputs/crtcs before entering KMS mode */ 1580 drm_helper_disable_unused_functions(fb_helper->dev); 1581 1582 drm_fb_helper_parse_command_line(fb_helper); 1583 1584 count = drm_fb_helper_probe_connector_modes(fb_helper, 1585 dev->mode_config.max_width, 1586 dev->mode_config.max_height); 1587 /* 1588 * we shouldn't end up with no modes here. 1589 */ 1590 if (count == 0) { 1591 printf("No connectors reported connected with modes\n"); 1592 } 1593 drm_setup_crtcs(fb_helper); 1594 1595 return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); 1596} 1597 1598int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) 1599{ 1600 struct drm_device *dev = fb_helper->dev; 1601 int count = 0; 1602 u32 max_width, max_height, bpp_sel; 1603 bool bound = false, crtcs_bound = false; 1604 struct drm_crtc *crtc; 1605 1606 if (!fb_helper->fb) 1607 return 0; 1608 1609 sx_xlock(&dev->mode_config.mutex); 1610 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1611 if (crtc->fb) 1612 crtcs_bound = true; 1613 if (crtc->fb == fb_helper->fb) 1614 bound = true; 1615 } 1616 1617 if (!bound && crtcs_bound) { 1618 fb_helper->delayed_hotplug = true; 1619 sx_xunlock(&dev->mode_config.mutex); 1620 return 0; 1621 } 1622 DRM_DEBUG_KMS("\n"); 1623 1624 max_width = fb_helper->fb->width; 1625 max_height = fb_helper->fb->height; 1626 bpp_sel = fb_helper->fb->bits_per_pixel; 1627 1628 count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, 1629 max_height); 1630 drm_setup_crtcs(fb_helper); 1631 sx_xunlock(&dev->mode_config.mutex); 1632 1633 return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); 1634} 1635
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