Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 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 | #include <linux/sysrq.h> |
| 31 | #include <linux/fb.h> |
| 32 | #include "drmP.h" |
| 33 | #include "drm_crtc.h" |
| 34 | #include "drm_fb_helper.h" |
| 35 | #include "drm_crtc_helper.h" |
| 36 | |
Dave Airlie | 6fcefd5 | 2009-09-08 11:08:32 +1000 | [diff] [blame] | 37 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
| 38 | MODULE_DESCRIPTION("DRM KMS helper"); |
| 39 | MODULE_LICENSE("GPL and additional rights"); |
| 40 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 41 | static LIST_HEAD(kernel_fb_helper_list); |
| 42 | |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 43 | int drm_fb_helper_add_connector(struct drm_connector *connector) |
| 44 | { |
| 45 | connector->fb_helper_private = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
| 46 | if (!connector->fb_helper_private) |
| 47 | return -ENOMEM; |
| 48 | |
| 49 | return 0; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 50 | } |
| 51 | EXPORT_SYMBOL(drm_fb_helper_add_connector); |
| 52 | |
| 53 | static int my_atoi(const char *name) |
| 54 | { |
| 55 | int val = 0; |
| 56 | |
| 57 | for (;; name++) { |
| 58 | switch (*name) { |
| 59 | case '0' ... '9': |
| 60 | val = 10*val+(*name-'0'); |
| 61 | break; |
| 62 | default: |
| 63 | return val; |
| 64 | } |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * drm_fb_helper_connector_parse_command_line - parse command line for connector |
| 70 | * @connector - connector to parse line for |
| 71 | * @mode_option - per connector mode option |
| 72 | * |
| 73 | * This parses the connector specific then generic command lines for |
| 74 | * modes and options to configure the connector. |
| 75 | * |
| 76 | * This uses the same parameters as the fb modedb.c, except for extra |
| 77 | * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd] |
| 78 | * |
| 79 | * enable/enable Digital/disable bit at the end |
| 80 | */ |
| 81 | static bool drm_fb_helper_connector_parse_command_line(struct drm_connector *connector, |
| 82 | const char *mode_option) |
| 83 | { |
| 84 | const char *name; |
| 85 | unsigned int namelen; |
| 86 | int res_specified = 0, bpp_specified = 0, refresh_specified = 0; |
| 87 | unsigned int xres = 0, yres = 0, bpp = 32, refresh = 0; |
| 88 | int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0; |
| 89 | int i; |
| 90 | enum drm_connector_force force = DRM_FORCE_UNSPECIFIED; |
| 91 | struct drm_fb_helper_connector *fb_help_conn = connector->fb_helper_private; |
Dave Airlie | 8ef8678 | 2009-09-26 06:39:00 +1000 | [diff] [blame] | 92 | struct drm_fb_helper_cmdline_mode *cmdline_mode; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 93 | |
Dave Airlie | 8ef8678 | 2009-09-26 06:39:00 +1000 | [diff] [blame] | 94 | if (!fb_help_conn) |
| 95 | return false; |
| 96 | |
| 97 | cmdline_mode = &fb_help_conn->cmdline_mode; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 98 | if (!mode_option) |
| 99 | mode_option = fb_mode_option; |
| 100 | |
| 101 | if (!mode_option) { |
| 102 | cmdline_mode->specified = false; |
| 103 | return false; |
| 104 | } |
| 105 | |
| 106 | name = mode_option; |
| 107 | namelen = strlen(name); |
| 108 | for (i = namelen-1; i >= 0; i--) { |
| 109 | switch (name[i]) { |
| 110 | case '@': |
| 111 | namelen = i; |
| 112 | if (!refresh_specified && !bpp_specified && |
| 113 | !yres_specified) { |
| 114 | refresh = my_atoi(&name[i+1]); |
| 115 | refresh_specified = 1; |
| 116 | if (cvt || rb) |
| 117 | cvt = 0; |
| 118 | } else |
| 119 | goto done; |
| 120 | break; |
| 121 | case '-': |
| 122 | namelen = i; |
| 123 | if (!bpp_specified && !yres_specified) { |
| 124 | bpp = my_atoi(&name[i+1]); |
| 125 | bpp_specified = 1; |
| 126 | if (cvt || rb) |
| 127 | cvt = 0; |
| 128 | } else |
| 129 | goto done; |
| 130 | break; |
| 131 | case 'x': |
| 132 | if (!yres_specified) { |
| 133 | yres = my_atoi(&name[i+1]); |
| 134 | yres_specified = 1; |
| 135 | } else |
| 136 | goto done; |
| 137 | case '0' ... '9': |
| 138 | break; |
| 139 | case 'M': |
| 140 | if (!yres_specified) |
| 141 | cvt = 1; |
| 142 | break; |
| 143 | case 'R': |
| 144 | if (!cvt) |
| 145 | rb = 1; |
| 146 | break; |
| 147 | case 'm': |
| 148 | if (!cvt) |
| 149 | margins = 1; |
| 150 | break; |
| 151 | case 'i': |
| 152 | if (!cvt) |
| 153 | interlace = 1; |
| 154 | break; |
| 155 | case 'e': |
| 156 | force = DRM_FORCE_ON; |
| 157 | break; |
| 158 | case 'D': |
Roel Kluin | e89a8c9 | 2009-12-31 13:06:29 +0100 | [diff] [blame] | 159 | if ((connector->connector_type != DRM_MODE_CONNECTOR_DVII) && |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 160 | (connector->connector_type != DRM_MODE_CONNECTOR_HDMIB)) |
| 161 | force = DRM_FORCE_ON; |
| 162 | else |
| 163 | force = DRM_FORCE_ON_DIGITAL; |
| 164 | break; |
| 165 | case 'd': |
| 166 | force = DRM_FORCE_OFF; |
| 167 | break; |
| 168 | default: |
| 169 | goto done; |
| 170 | } |
| 171 | } |
| 172 | if (i < 0 && yres_specified) { |
| 173 | xres = my_atoi(name); |
| 174 | res_specified = 1; |
| 175 | } |
| 176 | done: |
| 177 | |
| 178 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", |
| 179 | drm_get_connector_name(connector), xres, yres, |
| 180 | (refresh) ? refresh : 60, (rb) ? " reduced blanking" : |
| 181 | "", (margins) ? " with margins" : "", (interlace) ? |
| 182 | " interlaced" : ""); |
| 183 | |
| 184 | if (force) { |
| 185 | const char *s; |
| 186 | switch (force) { |
| 187 | case DRM_FORCE_OFF: s = "OFF"; break; |
| 188 | case DRM_FORCE_ON_DIGITAL: s = "ON - dig"; break; |
| 189 | default: |
| 190 | case DRM_FORCE_ON: s = "ON"; break; |
| 191 | } |
| 192 | |
| 193 | DRM_INFO("forcing %s connector %s\n", |
| 194 | drm_get_connector_name(connector), s); |
| 195 | connector->force = force; |
| 196 | } |
| 197 | |
| 198 | if (res_specified) { |
| 199 | cmdline_mode->specified = true; |
| 200 | cmdline_mode->xres = xres; |
| 201 | cmdline_mode->yres = yres; |
| 202 | } |
| 203 | |
| 204 | if (refresh_specified) { |
| 205 | cmdline_mode->refresh_specified = true; |
| 206 | cmdline_mode->refresh = refresh; |
| 207 | } |
| 208 | |
| 209 | if (bpp_specified) { |
| 210 | cmdline_mode->bpp_specified = true; |
| 211 | cmdline_mode->bpp = bpp; |
| 212 | } |
| 213 | cmdline_mode->rb = rb ? true : false; |
| 214 | cmdline_mode->cvt = cvt ? true : false; |
| 215 | cmdline_mode->interlace = interlace ? true : false; |
| 216 | |
| 217 | return true; |
| 218 | } |
| 219 | |
| 220 | int drm_fb_helper_parse_command_line(struct drm_device *dev) |
| 221 | { |
| 222 | struct drm_connector *connector; |
| 223 | |
| 224 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 225 | char *option = NULL; |
| 226 | |
| 227 | /* do something on return - turn off connector maybe */ |
| 228 | if (fb_get_options(drm_get_connector_name(connector), &option)) |
| 229 | continue; |
| 230 | |
| 231 | drm_fb_helper_connector_parse_command_line(connector, option); |
| 232 | } |
| 233 | return 0; |
| 234 | } |
| 235 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 236 | bool drm_fb_helper_force_kernel_mode(void) |
| 237 | { |
| 238 | int i = 0; |
| 239 | bool ret, error = false; |
| 240 | struct drm_fb_helper *helper; |
| 241 | |
| 242 | if (list_empty(&kernel_fb_helper_list)) |
| 243 | return false; |
| 244 | |
| 245 | list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) { |
| 246 | for (i = 0; i < helper->crtc_count; i++) { |
| 247 | struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set; |
| 248 | ret = drm_crtc_helper_set_config(mode_set); |
| 249 | if (ret) |
| 250 | error = true; |
| 251 | } |
| 252 | } |
| 253 | return error; |
| 254 | } |
| 255 | |
| 256 | int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed, |
| 257 | void *panic_str) |
| 258 | { |
| 259 | DRM_ERROR("panic occurred, switching back to text console\n"); |
| 260 | return drm_fb_helper_force_kernel_mode(); |
| 261 | return 0; |
| 262 | } |
| 263 | EXPORT_SYMBOL(drm_fb_helper_panic); |
| 264 | |
| 265 | static struct notifier_block paniced = { |
| 266 | .notifier_call = drm_fb_helper_panic, |
| 267 | }; |
| 268 | |
| 269 | /** |
| 270 | * drm_fb_helper_restore - restore the framebuffer console (kernel) config |
| 271 | * |
| 272 | * Restore's the kernel's fbcon mode, used for lastclose & panic paths. |
| 273 | */ |
| 274 | void drm_fb_helper_restore(void) |
| 275 | { |
| 276 | bool ret; |
| 277 | ret = drm_fb_helper_force_kernel_mode(); |
| 278 | if (ret == true) |
| 279 | DRM_ERROR("Failed to restore crtc configuration\n"); |
| 280 | } |
| 281 | EXPORT_SYMBOL(drm_fb_helper_restore); |
| 282 | |
Mikael Pettersson | bea1d35 | 2009-09-28 18:26:25 +0200 | [diff] [blame] | 283 | #ifdef CONFIG_MAGIC_SYSRQ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 284 | static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) |
| 285 | { |
| 286 | drm_fb_helper_restore(); |
| 287 | } |
| 288 | static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); |
| 289 | |
| 290 | static void drm_fb_helper_sysrq(int dummy1, struct tty_struct *dummy3) |
| 291 | { |
| 292 | schedule_work(&drm_fb_helper_restore_work); |
| 293 | } |
| 294 | |
| 295 | static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { |
| 296 | .handler = drm_fb_helper_sysrq, |
| 297 | .help_msg = "force-fb(V)", |
| 298 | .action_msg = "Restore framebuffer console", |
| 299 | }; |
Mikael Pettersson | bea1d35 | 2009-09-28 18:26:25 +0200 | [diff] [blame] | 300 | #endif |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 301 | |
| 302 | static void drm_fb_helper_on(struct fb_info *info) |
| 303 | { |
| 304 | struct drm_fb_helper *fb_helper = info->par; |
| 305 | struct drm_device *dev = fb_helper->dev; |
| 306 | struct drm_crtc *crtc; |
| 307 | struct drm_encoder *encoder; |
| 308 | int i; |
| 309 | |
| 310 | /* |
| 311 | * For each CRTC in this fb, turn the crtc on then, |
| 312 | * find all associated encoders and turn them on. |
| 313 | */ |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 314 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 315 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 316 | struct drm_crtc_helper_funcs *crtc_funcs = |
| 317 | crtc->helper_private; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 318 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 319 | /* Only mess with CRTCs in this fb */ |
| 320 | if (crtc->base.id != fb_helper->crtc_info[i].crtc_id || |
| 321 | !crtc->enabled) |
| 322 | continue; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 323 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 324 | mutex_lock(&dev->mode_config.mutex); |
| 325 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); |
| 326 | mutex_unlock(&dev->mode_config.mutex); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 327 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 328 | /* Found a CRTC on this fb, now find encoders */ |
| 329 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 330 | if (encoder->crtc == crtc) { |
| 331 | struct drm_encoder_helper_funcs *encoder_funcs; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 332 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 333 | encoder_funcs = encoder->helper_private; |
| 334 | mutex_lock(&dev->mode_config.mutex); |
| 335 | encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); |
| 336 | mutex_unlock(&dev->mode_config.mutex); |
| 337 | } |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 338 | } |
| 339 | } |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | static void drm_fb_helper_off(struct fb_info *info, int dpms_mode) |
| 344 | { |
| 345 | struct drm_fb_helper *fb_helper = info->par; |
| 346 | struct drm_device *dev = fb_helper->dev; |
| 347 | struct drm_crtc *crtc; |
| 348 | struct drm_encoder *encoder; |
| 349 | int i; |
| 350 | |
| 351 | /* |
| 352 | * For each CRTC in this fb, find all associated encoders |
| 353 | * and turn them off, then turn off the CRTC. |
| 354 | */ |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 355 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 356 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 357 | struct drm_crtc_helper_funcs *crtc_funcs = |
| 358 | crtc->helper_private; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 359 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 360 | /* Only mess with CRTCs in this fb */ |
| 361 | if (crtc->base.id != fb_helper->crtc_info[i].crtc_id || |
| 362 | !crtc->enabled) |
| 363 | continue; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 364 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 365 | /* Found a CRTC on this fb, now find encoders */ |
| 366 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
| 367 | if (encoder->crtc == crtc) { |
| 368 | struct drm_encoder_helper_funcs *encoder_funcs; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 369 | |
Jesse Barnes | e87b2c4 | 2009-09-17 18:14:41 -0700 | [diff] [blame] | 370 | encoder_funcs = encoder->helper_private; |
| 371 | mutex_lock(&dev->mode_config.mutex); |
| 372 | encoder_funcs->dpms(encoder, dpms_mode); |
| 373 | mutex_unlock(&dev->mode_config.mutex); |
| 374 | } |
| 375 | } |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 376 | mutex_lock(&dev->mode_config.mutex); |
| 377 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); |
| 378 | mutex_unlock(&dev->mode_config.mutex); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 379 | } |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 380 | } |
| 381 | } |
| 382 | |
| 383 | int drm_fb_helper_blank(int blank, struct fb_info *info) |
| 384 | { |
| 385 | switch (blank) { |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 386 | /* Display: On; HSync: On, VSync: On */ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 387 | case FB_BLANK_UNBLANK: |
| 388 | drm_fb_helper_on(info); |
| 389 | break; |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 390 | /* Display: Off; HSync: On, VSync: On */ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 391 | case FB_BLANK_NORMAL: |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 392 | drm_fb_helper_off(info, DRM_MODE_DPMS_ON); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 393 | break; |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 394 | /* Display: Off; HSync: Off, VSync: On */ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 395 | case FB_BLANK_HSYNC_SUSPEND: |
| 396 | drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY); |
| 397 | break; |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 398 | /* Display: Off; HSync: On, VSync: Off */ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 399 | case FB_BLANK_VSYNC_SUSPEND: |
| 400 | drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND); |
| 401 | break; |
James Simmons | 731b5a1 | 2009-10-29 20:39:07 +0000 | [diff] [blame] | 402 | /* Display: Off; HSync: Off, VSync: Off */ |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 403 | case FB_BLANK_POWERDOWN: |
| 404 | drm_fb_helper_off(info, DRM_MODE_DPMS_OFF); |
| 405 | break; |
| 406 | } |
| 407 | return 0; |
| 408 | } |
| 409 | EXPORT_SYMBOL(drm_fb_helper_blank); |
| 410 | |
| 411 | static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) |
| 412 | { |
| 413 | int i; |
| 414 | |
| 415 | for (i = 0; i < helper->crtc_count; i++) |
| 416 | kfree(helper->crtc_info[i].mode_set.connectors); |
| 417 | kfree(helper->crtc_info); |
| 418 | } |
| 419 | |
| 420 | int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count, int max_conn_count) |
| 421 | { |
| 422 | struct drm_device *dev = helper->dev; |
| 423 | struct drm_crtc *crtc; |
| 424 | int ret = 0; |
| 425 | int i; |
| 426 | |
| 427 | helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL); |
| 428 | if (!helper->crtc_info) |
| 429 | return -ENOMEM; |
| 430 | |
| 431 | helper->crtc_count = crtc_count; |
| 432 | |
| 433 | for (i = 0; i < crtc_count; i++) { |
| 434 | helper->crtc_info[i].mode_set.connectors = |
| 435 | kcalloc(max_conn_count, |
| 436 | sizeof(struct drm_connector *), |
| 437 | GFP_KERNEL); |
| 438 | |
| 439 | if (!helper->crtc_info[i].mode_set.connectors) { |
| 440 | ret = -ENOMEM; |
| 441 | goto out_free; |
| 442 | } |
| 443 | helper->crtc_info[i].mode_set.num_connectors = 0; |
| 444 | } |
| 445 | |
| 446 | i = 0; |
| 447 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 448 | helper->crtc_info[i].crtc_id = crtc->base.id; |
| 449 | helper->crtc_info[i].mode_set.crtc = crtc; |
| 450 | i++; |
| 451 | } |
| 452 | helper->conn_limit = max_conn_count; |
| 453 | return 0; |
| 454 | out_free: |
| 455 | drm_fb_helper_crtc_free(helper); |
| 456 | return -ENOMEM; |
| 457 | } |
| 458 | EXPORT_SYMBOL(drm_fb_helper_init_crtc_count); |
| 459 | |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 460 | static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 461 | u16 blue, u16 regno, struct fb_info *info) |
| 462 | { |
| 463 | struct drm_fb_helper *fb_helper = info->par; |
| 464 | struct drm_framebuffer *fb = fb_helper->fb; |
| 465 | int pindex; |
| 466 | |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 467 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
| 468 | u32 *palette; |
| 469 | u32 value; |
| 470 | /* place color in psuedopalette */ |
| 471 | if (regno > 16) |
| 472 | return -EINVAL; |
| 473 | palette = (u32 *)info->pseudo_palette; |
| 474 | red >>= (16 - info->var.red.length); |
| 475 | green >>= (16 - info->var.green.length); |
| 476 | blue >>= (16 - info->var.blue.length); |
| 477 | value = (red << info->var.red.offset) | |
| 478 | (green << info->var.green.offset) | |
| 479 | (blue << info->var.blue.offset); |
| 480 | palette[regno] = value; |
| 481 | return 0; |
| 482 | } |
| 483 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 484 | pindex = regno; |
| 485 | |
| 486 | if (fb->bits_per_pixel == 16) { |
| 487 | pindex = regno << 3; |
| 488 | |
| 489 | if (fb->depth == 16 && regno > 63) |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 490 | return -EINVAL; |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 491 | if (fb->depth == 15 && regno > 31) |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 492 | return -EINVAL; |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 493 | |
| 494 | if (fb->depth == 16) { |
| 495 | u16 r, g, b; |
| 496 | int i; |
| 497 | if (regno < 32) { |
| 498 | for (i = 0; i < 8; i++) |
| 499 | fb_helper->funcs->gamma_set(crtc, red, |
| 500 | green, blue, pindex + i); |
| 501 | } |
| 502 | |
| 503 | fb_helper->funcs->gamma_get(crtc, &r, |
| 504 | &g, &b, |
| 505 | pindex >> 1); |
| 506 | |
| 507 | for (i = 0; i < 4; i++) |
| 508 | fb_helper->funcs->gamma_set(crtc, r, |
| 509 | green, b, |
| 510 | (pindex >> 1) + i); |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | if (fb->depth != 16) |
| 515 | fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 516 | return 0; |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 517 | } |
| 518 | |
Dave Airlie | 068143d | 2009-10-05 09:58:02 +1000 | [diff] [blame] | 519 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) |
| 520 | { |
| 521 | struct drm_fb_helper *fb_helper = info->par; |
| 522 | struct drm_device *dev = fb_helper->dev; |
| 523 | u16 *red, *green, *blue, *transp; |
| 524 | struct drm_crtc *crtc; |
| 525 | int i, rc = 0; |
| 526 | int start; |
| 527 | |
| 528 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 529 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
| 530 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 531 | if (crtc->base.id == fb_helper->crtc_info[i].crtc_id) |
| 532 | break; |
| 533 | } |
| 534 | if (i == fb_helper->crtc_count) |
| 535 | continue; |
| 536 | |
| 537 | red = cmap->red; |
| 538 | green = cmap->green; |
| 539 | blue = cmap->blue; |
| 540 | transp = cmap->transp; |
| 541 | start = cmap->start; |
| 542 | |
| 543 | for (i = 0; i < cmap->len; i++) { |
| 544 | u16 hred, hgreen, hblue, htransp = 0xffff; |
| 545 | |
| 546 | hred = *red++; |
| 547 | hgreen = *green++; |
| 548 | hblue = *blue++; |
| 549 | |
| 550 | if (transp) |
| 551 | htransp = *transp++; |
| 552 | |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 553 | rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); |
| 554 | if (rc) |
| 555 | return rc; |
Dave Airlie | 068143d | 2009-10-05 09:58:02 +1000 | [diff] [blame] | 556 | } |
| 557 | crtc_funcs->load_lut(crtc); |
| 558 | } |
| 559 | return rc; |
| 560 | } |
| 561 | EXPORT_SYMBOL(drm_fb_helper_setcmap); |
| 562 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 563 | int drm_fb_helper_setcolreg(unsigned regno, |
| 564 | unsigned red, |
| 565 | unsigned green, |
| 566 | unsigned blue, |
| 567 | unsigned transp, |
| 568 | struct fb_info *info) |
| 569 | { |
| 570 | struct drm_fb_helper *fb_helper = info->par; |
| 571 | struct drm_device *dev = fb_helper->dev; |
| 572 | struct drm_crtc *crtc; |
| 573 | int i; |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 574 | int ret; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 575 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 576 | if (regno > 255) |
| 577 | return 1; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 578 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 579 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 580 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 581 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 582 | if (crtc->base.id == fb_helper->crtc_info[i].crtc_id) |
| 583 | break; |
| 584 | } |
| 585 | if (i == fb_helper->crtc_count) |
| 586 | continue; |
| 587 | |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 588 | ret = setcolreg(crtc, red, green, blue, regno, info); |
| 589 | if (ret) |
| 590 | return ret; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 591 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 592 | crtc_funcs->load_lut(crtc); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 593 | } |
| 594 | return 0; |
| 595 | } |
| 596 | EXPORT_SYMBOL(drm_fb_helper_setcolreg); |
| 597 | |
| 598 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
| 599 | struct fb_info *info) |
| 600 | { |
| 601 | struct drm_fb_helper *fb_helper = info->par; |
| 602 | struct drm_framebuffer *fb = fb_helper->fb; |
| 603 | int depth; |
| 604 | |
Clemens Ladisch | 5349ef3 | 2009-11-04 09:42:52 +0100 | [diff] [blame] | 605 | if (var->pixclock != 0) |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 606 | return -EINVAL; |
| 607 | |
| 608 | /* Need to resize the fb object !!! */ |
Dave Airlie | 7751b8c | 2010-01-08 09:27:08 +1000 | [diff] [blame] | 609 | if (var->bits_per_pixel > fb->bits_per_pixel || var->xres > fb->width || var->yres > fb->height) { |
| 610 | DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " |
| 611 | "object %dx%d-%d > %dx%d-%d\n", var->xres, var->yres, var->bits_per_pixel, |
| 612 | fb->width, fb->height, fb->bits_per_pixel); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 613 | return -EINVAL; |
| 614 | } |
| 615 | |
| 616 | switch (var->bits_per_pixel) { |
| 617 | case 16: |
| 618 | depth = (var->green.length == 6) ? 16 : 15; |
| 619 | break; |
| 620 | case 32: |
| 621 | depth = (var->transp.length > 0) ? 32 : 24; |
| 622 | break; |
| 623 | default: |
| 624 | depth = var->bits_per_pixel; |
| 625 | break; |
| 626 | } |
| 627 | |
| 628 | switch (depth) { |
| 629 | case 8: |
| 630 | var->red.offset = 0; |
| 631 | var->green.offset = 0; |
| 632 | var->blue.offset = 0; |
| 633 | var->red.length = 8; |
| 634 | var->green.length = 8; |
| 635 | var->blue.length = 8; |
| 636 | var->transp.length = 0; |
| 637 | var->transp.offset = 0; |
| 638 | break; |
| 639 | case 15: |
| 640 | var->red.offset = 10; |
| 641 | var->green.offset = 5; |
| 642 | var->blue.offset = 0; |
| 643 | var->red.length = 5; |
| 644 | var->green.length = 5; |
| 645 | var->blue.length = 5; |
| 646 | var->transp.length = 1; |
| 647 | var->transp.offset = 15; |
| 648 | break; |
| 649 | case 16: |
| 650 | var->red.offset = 11; |
| 651 | var->green.offset = 5; |
| 652 | var->blue.offset = 0; |
| 653 | var->red.length = 5; |
| 654 | var->green.length = 6; |
| 655 | var->blue.length = 5; |
| 656 | var->transp.length = 0; |
| 657 | var->transp.offset = 0; |
| 658 | break; |
| 659 | case 24: |
| 660 | var->red.offset = 16; |
| 661 | var->green.offset = 8; |
| 662 | var->blue.offset = 0; |
| 663 | var->red.length = 8; |
| 664 | var->green.length = 8; |
| 665 | var->blue.length = 8; |
| 666 | var->transp.length = 0; |
| 667 | var->transp.offset = 0; |
| 668 | break; |
| 669 | case 32: |
| 670 | var->red.offset = 16; |
| 671 | var->green.offset = 8; |
| 672 | var->blue.offset = 0; |
| 673 | var->red.length = 8; |
| 674 | var->green.length = 8; |
| 675 | var->blue.length = 8; |
| 676 | var->transp.length = 8; |
| 677 | var->transp.offset = 24; |
| 678 | break; |
| 679 | default: |
| 680 | return -EINVAL; |
| 681 | } |
| 682 | return 0; |
| 683 | } |
| 684 | EXPORT_SYMBOL(drm_fb_helper_check_var); |
| 685 | |
| 686 | /* this will let fbcon do the mode init */ |
| 687 | int drm_fb_helper_set_par(struct fb_info *info) |
| 688 | { |
| 689 | struct drm_fb_helper *fb_helper = info->par; |
| 690 | struct drm_device *dev = fb_helper->dev; |
| 691 | struct fb_var_screeninfo *var = &info->var; |
| 692 | struct drm_crtc *crtc; |
| 693 | int ret; |
| 694 | int i; |
| 695 | |
Clemens Ladisch | 5349ef3 | 2009-11-04 09:42:52 +0100 | [diff] [blame] | 696 | if (var->pixclock != 0) { |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 697 | DRM_ERROR("PIXEL CLCOK SET\n"); |
| 698 | return -EINVAL; |
| 699 | } |
| 700 | |
| 701 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 702 | |
| 703 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 704 | if (crtc->base.id == fb_helper->crtc_info[i].crtc_id) |
| 705 | break; |
| 706 | } |
| 707 | if (i == fb_helper->crtc_count) |
| 708 | continue; |
| 709 | |
| 710 | if (crtc->fb == fb_helper->crtc_info[i].mode_set.fb) { |
| 711 | mutex_lock(&dev->mode_config.mutex); |
James Simmons | a2d49ae | 2009-10-27 21:09:24 +0000 | [diff] [blame] | 712 | ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 713 | mutex_unlock(&dev->mode_config.mutex); |
| 714 | if (ret) |
| 715 | return ret; |
| 716 | } |
| 717 | } |
| 718 | return 0; |
| 719 | } |
| 720 | EXPORT_SYMBOL(drm_fb_helper_set_par); |
| 721 | |
| 722 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
| 723 | struct fb_info *info) |
| 724 | { |
| 725 | struct drm_fb_helper *fb_helper = info->par; |
| 726 | struct drm_device *dev = fb_helper->dev; |
| 727 | struct drm_mode_set *modeset; |
| 728 | struct drm_crtc *crtc; |
| 729 | int ret = 0; |
| 730 | int i; |
| 731 | |
| 732 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 733 | for (i = 0; i < fb_helper->crtc_count; i++) { |
| 734 | if (crtc->base.id == fb_helper->crtc_info[i].crtc_id) |
| 735 | break; |
| 736 | } |
| 737 | |
| 738 | if (i == fb_helper->crtc_count) |
| 739 | continue; |
| 740 | |
| 741 | modeset = &fb_helper->crtc_info[i].mode_set; |
| 742 | |
| 743 | modeset->x = var->xoffset; |
| 744 | modeset->y = var->yoffset; |
| 745 | |
| 746 | if (modeset->num_connectors) { |
| 747 | mutex_lock(&dev->mode_config.mutex); |
| 748 | ret = crtc->funcs->set_config(modeset); |
| 749 | mutex_unlock(&dev->mode_config.mutex); |
| 750 | if (!ret) { |
| 751 | info->var.xoffset = var->xoffset; |
| 752 | info->var.yoffset = var->yoffset; |
| 753 | } |
| 754 | } |
| 755 | } |
| 756 | return ret; |
| 757 | } |
| 758 | EXPORT_SYMBOL(drm_fb_helper_pan_display); |
| 759 | |
| 760 | int drm_fb_helper_single_fb_probe(struct drm_device *dev, |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 761 | int preferred_bpp, |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 762 | int (*fb_create)(struct drm_device *dev, |
| 763 | uint32_t fb_width, |
| 764 | uint32_t fb_height, |
| 765 | uint32_t surface_width, |
| 766 | uint32_t surface_height, |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 767 | uint32_t surface_depth, |
| 768 | uint32_t surface_bpp, |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 769 | struct drm_framebuffer **fb_ptr)) |
| 770 | { |
| 771 | struct drm_crtc *crtc; |
| 772 | struct drm_connector *connector; |
| 773 | unsigned int fb_width = (unsigned)-1, fb_height = (unsigned)-1; |
| 774 | unsigned int surface_width = 0, surface_height = 0; |
| 775 | int new_fb = 0; |
| 776 | int crtc_count = 0; |
| 777 | int ret, i, conn_count = 0; |
| 778 | struct fb_info *info; |
| 779 | struct drm_framebuffer *fb; |
| 780 | struct drm_mode_set *modeset = NULL; |
| 781 | struct drm_fb_helper *fb_helper; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 782 | uint32_t surface_depth = 24, surface_bpp = 32; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 783 | |
Dave Airlie | b8c00ac | 2009-10-06 13:54:01 +1000 | [diff] [blame] | 784 | /* if driver picks 8 or 16 by default use that |
| 785 | for both depth/bpp */ |
| 786 | if (preferred_bpp != surface_bpp) { |
| 787 | surface_depth = surface_bpp = preferred_bpp; |
| 788 | } |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 789 | /* first up get a count of crtcs now in use and new min/maxes width/heights */ |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 790 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 791 | struct drm_fb_helper_connector *fb_help_conn = connector->fb_helper_private; |
Dave Airlie | 8ef8678 | 2009-09-26 06:39:00 +1000 | [diff] [blame] | 792 | |
| 793 | struct drm_fb_helper_cmdline_mode *cmdline_mode; |
| 794 | |
| 795 | if (!fb_help_conn) |
| 796 | continue; |
| 797 | |
| 798 | cmdline_mode = &fb_help_conn->cmdline_mode; |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 799 | |
| 800 | if (cmdline_mode->bpp_specified) { |
| 801 | switch (cmdline_mode->bpp) { |
| 802 | case 8: |
| 803 | surface_depth = surface_bpp = 8; |
| 804 | break; |
| 805 | case 15: |
| 806 | surface_depth = 15; |
| 807 | surface_bpp = 16; |
| 808 | break; |
| 809 | case 16: |
| 810 | surface_depth = surface_bpp = 16; |
| 811 | break; |
| 812 | case 24: |
| 813 | surface_depth = surface_bpp = 24; |
| 814 | break; |
| 815 | case 32: |
| 816 | surface_depth = 24; |
| 817 | surface_bpp = 32; |
| 818 | break; |
| 819 | } |
| 820 | break; |
| 821 | } |
| 822 | } |
| 823 | |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 824 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 825 | if (drm_helper_crtc_in_use(crtc)) { |
| 826 | if (crtc->desired_mode) { |
| 827 | if (crtc->desired_mode->hdisplay < fb_width) |
| 828 | fb_width = crtc->desired_mode->hdisplay; |
| 829 | |
| 830 | if (crtc->desired_mode->vdisplay < fb_height) |
| 831 | fb_height = crtc->desired_mode->vdisplay; |
| 832 | |
| 833 | if (crtc->desired_mode->hdisplay > surface_width) |
| 834 | surface_width = crtc->desired_mode->hdisplay; |
| 835 | |
| 836 | if (crtc->desired_mode->vdisplay > surface_height) |
| 837 | surface_height = crtc->desired_mode->vdisplay; |
| 838 | } |
| 839 | crtc_count++; |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | if (crtc_count == 0 || fb_width == -1 || fb_height == -1) { |
| 844 | /* hmm everyone went away - assume VGA cable just fell out |
| 845 | and will come back later. */ |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | /* do we have an fb already? */ |
| 850 | if (list_empty(&dev->mode_config.fb_kernel_list)) { |
| 851 | ret = (*fb_create)(dev, fb_width, fb_height, surface_width, |
Dave Airlie | d50ba25 | 2009-09-23 14:44:08 +1000 | [diff] [blame] | 852 | surface_height, surface_depth, surface_bpp, |
| 853 | &fb); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 854 | if (ret) |
| 855 | return -EINVAL; |
| 856 | new_fb = 1; |
| 857 | } else { |
| 858 | fb = list_first_entry(&dev->mode_config.fb_kernel_list, |
| 859 | struct drm_framebuffer, filp_head); |
| 860 | |
| 861 | /* if someone hotplugs something bigger than we have already allocated, we are pwned. |
| 862 | As really we can't resize an fbdev that is in the wild currently due to fbdev |
| 863 | not really being designed for the lower layers moving stuff around under it. |
| 864 | - so in the grand style of things - punt. */ |
| 865 | if ((fb->width < surface_width) || |
| 866 | (fb->height < surface_height)) { |
| 867 | DRM_ERROR("Framebuffer not large enough to scale console onto.\n"); |
| 868 | return -EINVAL; |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | info = fb->fbdev; |
| 873 | fb_helper = info->par; |
| 874 | |
| 875 | crtc_count = 0; |
| 876 | /* okay we need to setup new connector sets in the crtcs */ |
| 877 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| 878 | modeset = &fb_helper->crtc_info[crtc_count].mode_set; |
| 879 | modeset->fb = fb; |
| 880 | conn_count = 0; |
| 881 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| 882 | if (connector->encoder) |
| 883 | if (connector->encoder->crtc == modeset->crtc) { |
| 884 | modeset->connectors[conn_count] = connector; |
| 885 | conn_count++; |
| 886 | if (conn_count > fb_helper->conn_limit) |
| 887 | BUG(); |
| 888 | } |
| 889 | } |
| 890 | |
| 891 | for (i = conn_count; i < fb_helper->conn_limit; i++) |
| 892 | modeset->connectors[i] = NULL; |
| 893 | |
| 894 | modeset->crtc = crtc; |
| 895 | crtc_count++; |
| 896 | |
| 897 | modeset->num_connectors = conn_count; |
| 898 | if (modeset->crtc->desired_mode) { |
| 899 | if (modeset->mode) |
| 900 | drm_mode_destroy(dev, modeset->mode); |
| 901 | modeset->mode = drm_mode_duplicate(dev, |
| 902 | modeset->crtc->desired_mode); |
| 903 | } |
| 904 | } |
| 905 | fb_helper->crtc_count = crtc_count; |
| 906 | fb_helper->fb = fb; |
| 907 | |
| 908 | if (new_fb) { |
Clemens Ladisch | 5349ef3 | 2009-11-04 09:42:52 +0100 | [diff] [blame] | 909 | info->var.pixclock = 0; |
Ben Skeggs | b0a007d | 2009-12-08 11:15:10 +1000 | [diff] [blame] | 910 | ret = fb_alloc_cmap(&info->cmap, modeset->crtc->gamma_size, 0); |
Clemens Ladisch | 3bea21b | 2009-11-04 09:43:00 +0100 | [diff] [blame] | 911 | if (ret) |
| 912 | return ret; |
| 913 | if (register_framebuffer(info) < 0) { |
| 914 | fb_dealloc_cmap(&info->cmap); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 915 | return -EINVAL; |
Clemens Ladisch | 3bea21b | 2009-11-04 09:43:00 +0100 | [diff] [blame] | 916 | } |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 917 | } else { |
| 918 | drm_fb_helper_set_par(info); |
| 919 | } |
| 920 | printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, |
| 921 | info->fix.id); |
| 922 | |
| 923 | /* Switch back to kernel console on panic */ |
| 924 | /* multi card linked list maybe */ |
| 925 | if (list_empty(&kernel_fb_helper_list)) { |
| 926 | printk(KERN_INFO "registered panic notifier\n"); |
| 927 | atomic_notifier_chain_register(&panic_notifier_list, |
| 928 | &paniced); |
| 929 | register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); |
| 930 | } |
| 931 | list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); |
| 932 | return 0; |
| 933 | } |
| 934 | EXPORT_SYMBOL(drm_fb_helper_single_fb_probe); |
| 935 | |
| 936 | void drm_fb_helper_free(struct drm_fb_helper *helper) |
| 937 | { |
| 938 | list_del(&helper->kernel_fb_list); |
| 939 | if (list_empty(&kernel_fb_helper_list)) { |
| 940 | printk(KERN_INFO "unregistered panic notifier\n"); |
| 941 | atomic_notifier_chain_unregister(&panic_notifier_list, |
| 942 | &paniced); |
| 943 | unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); |
| 944 | } |
| 945 | drm_fb_helper_crtc_free(helper); |
Clemens Ladisch | 3bea21b | 2009-11-04 09:43:00 +0100 | [diff] [blame] | 946 | fb_dealloc_cmap(&helper->fb->fbdev->cmap); |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 947 | } |
| 948 | EXPORT_SYMBOL(drm_fb_helper_free); |
| 949 | |
Dave Airlie | 068143d | 2009-10-05 09:58:02 +1000 | [diff] [blame] | 950 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
| 951 | uint32_t depth) |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 952 | { |
| 953 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
Dave Airlie | 068143d | 2009-10-05 09:58:02 +1000 | [diff] [blame] | 954 | info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : |
Dave Airlie | c850cb7 | 2009-10-23 18:49:03 +1000 | [diff] [blame] | 955 | FB_VISUAL_TRUECOLOR; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 956 | info->fix.type_aux = 0; |
| 957 | info->fix.xpanstep = 1; /* doing it in hw */ |
| 958 | info->fix.ypanstep = 1; /* doing it in hw */ |
| 959 | info->fix.ywrapstep = 0; |
Dave Airlie | 3420e74 | 2009-08-31 10:33:29 +1000 | [diff] [blame] | 960 | info->fix.accel = FB_ACCEL_NONE; |
Dave Airlie | 785b93e | 2009-08-28 15:46:53 +1000 | [diff] [blame] | 961 | info->fix.type_aux = 0; |
| 962 | |
| 963 | info->fix.line_length = pitch; |
| 964 | return; |
| 965 | } |
| 966 | EXPORT_SYMBOL(drm_fb_helper_fill_fix); |
| 967 | |
| 968 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb, |
| 969 | uint32_t fb_width, uint32_t fb_height) |
| 970 | { |
| 971 | info->pseudo_palette = fb->pseudo_palette; |
| 972 | info->var.xres_virtual = fb->width; |
| 973 | info->var.yres_virtual = fb->height; |
| 974 | info->var.bits_per_pixel = fb->bits_per_pixel; |
| 975 | info->var.xoffset = 0; |
| 976 | info->var.yoffset = 0; |
| 977 | info->var.activate = FB_ACTIVATE_NOW; |
| 978 | info->var.height = -1; |
| 979 | info->var.width = -1; |
| 980 | |
| 981 | switch (fb->depth) { |
| 982 | case 8: |
| 983 | info->var.red.offset = 0; |
| 984 | info->var.green.offset = 0; |
| 985 | info->var.blue.offset = 0; |
| 986 | info->var.red.length = 8; /* 8bit DAC */ |
| 987 | info->var.green.length = 8; |
| 988 | info->var.blue.length = 8; |
| 989 | info->var.transp.offset = 0; |
| 990 | info->var.transp.length = 0; |
| 991 | break; |
| 992 | case 15: |
| 993 | info->var.red.offset = 10; |
| 994 | info->var.green.offset = 5; |
| 995 | info->var.blue.offset = 0; |
| 996 | info->var.red.length = 5; |
| 997 | info->var.green.length = 5; |
| 998 | info->var.blue.length = 5; |
| 999 | info->var.transp.offset = 15; |
| 1000 | info->var.transp.length = 1; |
| 1001 | break; |
| 1002 | case 16: |
| 1003 | info->var.red.offset = 11; |
| 1004 | info->var.green.offset = 5; |
| 1005 | info->var.blue.offset = 0; |
| 1006 | info->var.red.length = 5; |
| 1007 | info->var.green.length = 6; |
| 1008 | info->var.blue.length = 5; |
| 1009 | info->var.transp.offset = 0; |
| 1010 | break; |
| 1011 | case 24: |
| 1012 | info->var.red.offset = 16; |
| 1013 | info->var.green.offset = 8; |
| 1014 | info->var.blue.offset = 0; |
| 1015 | info->var.red.length = 8; |
| 1016 | info->var.green.length = 8; |
| 1017 | info->var.blue.length = 8; |
| 1018 | info->var.transp.offset = 0; |
| 1019 | info->var.transp.length = 0; |
| 1020 | break; |
| 1021 | case 32: |
| 1022 | info->var.red.offset = 16; |
| 1023 | info->var.green.offset = 8; |
| 1024 | info->var.blue.offset = 0; |
| 1025 | info->var.red.length = 8; |
| 1026 | info->var.green.length = 8; |
| 1027 | info->var.blue.length = 8; |
| 1028 | info->var.transp.offset = 24; |
| 1029 | info->var.transp.length = 8; |
| 1030 | break; |
| 1031 | default: |
| 1032 | break; |
| 1033 | } |
| 1034 | |
| 1035 | info->var.xres = fb_width; |
| 1036 | info->var.yres = fb_height; |
| 1037 | } |
| 1038 | EXPORT_SYMBOL(drm_fb_helper_fill_var); |