]>
Commit | Line | Data |
---|---|---|
f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * | |
5 | * DRM core CRTC related functions | |
6 | * | |
7 | * Permission to use, copy, modify, distribute, and sell this software and its | |
8 | * documentation for any purpose is hereby granted without fee, provided that | |
9 | * the above copyright notice appear in all copies and that both that copyright | |
10 | * notice and this permission notice appear in supporting documentation, and | |
11 | * that the name of the copyright holders not be used in advertising or | |
12 | * publicity pertaining to distribution of the software without specific, | |
13 | * written prior permission. The copyright holders make no representations | |
14 | * about the suitability of this software for any purpose. It is provided "as | |
15 | * is" without express or implied warranty. | |
16 | * | |
17 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
18 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
19 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
20 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
21 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
22 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
23 | * OF THIS SOFTWARE. | |
24 | * | |
25 | * Authors: | |
26 | * Keith Packard | |
27 | * Eric Anholt <eric@anholt.net> | |
28 | * Dave Airlie <airlied@linux.ie> | |
29 | * Jesse Barnes <jesse.barnes@intel.com> | |
30 | */ | |
31 | ||
2d1a8a48 | 32 | #include <linux/export.h> |
0603ba14 | 33 | #include <linux/moduleparam.h> |
2d1a8a48 | 34 | |
760285e7 DH |
35 | #include <drm/drmP.h> |
36 | #include <drm/drm_crtc.h> | |
37 | #include <drm/drm_fourcc.h> | |
38 | #include <drm/drm_crtc_helper.h> | |
39 | #include <drm/drm_fb_helper.h> | |
40 | #include <drm/drm_edid.h> | |
f453ba04 | 41 | |
92b6f89f DV |
42 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
43 | MODULE_DESCRIPTION("DRM KMS helper"); | |
44 | MODULE_LICENSE("GPL and additional rights"); | |
45 | ||
0d4ed4c8 DV |
46 | /** |
47 | * drm_helper_move_panel_connectors_to_head() - move panels to the front in the | |
48 | * connector list | |
49 | * @dev: drm device to operate on | |
50 | * | |
51 | * Some userspace presumes that the first connected connector is the main | |
52 | * display, where it's supposed to display e.g. the login screen. For | |
53 | * laptops, this should be the main panel. Use this function to sort all | |
54 | * (eDP/LVDS) panels to the front of the connector list, instead of | |
55 | * painstakingly trying to initialize them in the right order. | |
56 | */ | |
cfc1a062 DV |
57 | void drm_helper_move_panel_connectors_to_head(struct drm_device *dev) |
58 | { | |
59 | struct drm_connector *connector, *tmp; | |
60 | struct list_head panel_list; | |
61 | ||
62 | INIT_LIST_HEAD(&panel_list); | |
63 | ||
64 | list_for_each_entry_safe(connector, tmp, | |
65 | &dev->mode_config.connector_list, head) { | |
66 | if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS || | |
67 | connector->connector_type == DRM_MODE_CONNECTOR_eDP) | |
68 | list_move_tail(&connector->head, &panel_list); | |
69 | } | |
70 | ||
71 | list_splice(&panel_list, &dev->mode_config.connector_list); | |
72 | } | |
73 | EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head); | |
74 | ||
e58f637b CW |
75 | static bool drm_kms_helper_poll = true; |
76 | module_param_named(poll, drm_kms_helper_poll, bool, 0600); | |
77 | ||
6714977b | 78 | static void drm_mode_validate_flag(struct drm_connector *connector, |
79 | int flags) | |
80 | { | |
a1178ca0 | 81 | struct drm_display_mode *mode; |
6714977b | 82 | |
560a067a DL |
83 | if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE | |
84 | DRM_MODE_FLAG_3D_MASK)) | |
6714977b | 85 | return; |
86 | ||
a1178ca0 | 87 | list_for_each_entry(mode, &connector->modes, head) { |
6714977b | 88 | if ((mode->flags & DRM_MODE_FLAG_INTERLACE) && |
89 | !(flags & DRM_MODE_FLAG_INTERLACE)) | |
90 | mode->status = MODE_NO_INTERLACE; | |
91 | if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) && | |
92 | !(flags & DRM_MODE_FLAG_DBLSCAN)) | |
93 | mode->status = MODE_NO_DBLESCAN; | |
560a067a DL |
94 | if ((mode->flags & DRM_MODE_FLAG_3D_MASK) && |
95 | !(flags & DRM_MODE_FLAG_3D_MASK)) | |
96 | mode->status = MODE_NO_STEREO; | |
6714977b | 97 | } |
98 | ||
99 | return; | |
100 | } | |
101 | ||
f453ba04 | 102 | /** |
38651674 | 103 | * drm_helper_probe_single_connector_modes - get complete set of display modes |
0d4ed4c8 | 104 | * @connector: connector to probe |
f453ba04 DA |
105 | * @maxX: max width for modes |
106 | * @maxY: max height for modes | |
107 | * | |
108 | * LOCKING: | |
109 | * Caller must hold mode config lock. | |
110 | * | |
0d4ed4c8 DV |
111 | * Based on the helper callbacks implemented by @connector try to detect all |
112 | * valid modes. Modes will first be added to the connector's probed_modes list, | |
113 | * then culled (based on validity and the @maxX, @maxY parameters) and put into | |
114 | * the normal modes list. | |
f453ba04 | 115 | * |
1eee814d LD |
116 | * Intended to be use as a generic implementation of the ->fill_modes() |
117 | * @connector vfunc for drivers that use the crtc helpers for output mode | |
118 | * filtering and detection. | |
40a518d9 JB |
119 | * |
120 | * RETURNS: | |
121 | * Number of modes found on @connector. | |
f453ba04 | 122 | */ |
40a518d9 JB |
123 | int drm_helper_probe_single_connector_modes(struct drm_connector *connector, |
124 | uint32_t maxX, uint32_t maxY) | |
f453ba04 DA |
125 | { |
126 | struct drm_device *dev = connector->dev; | |
a1178ca0 | 127 | struct drm_display_mode *mode; |
f453ba04 DA |
128 | struct drm_connector_helper_funcs *connector_funcs = |
129 | connector->helper_private; | |
40a518d9 | 130 | int count = 0; |
6714977b | 131 | int mode_flags = 0; |
ebbd97ad | 132 | bool verbose_prune = true; |
f453ba04 | 133 | |
9440106b JG |
134 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, |
135 | drm_get_connector_name(connector)); | |
f453ba04 | 136 | /* set all modes to the unverified state */ |
a1178ca0 | 137 | list_for_each_entry(mode, &connector->modes, head) |
f453ba04 DA |
138 | mode->status = MODE_UNVERIFIED; |
139 | ||
d50ba256 DA |
140 | if (connector->force) { |
141 | if (connector->force == DRM_FORCE_ON) | |
142 | connector->status = connector_status_connected; | |
143 | else | |
144 | connector->status = connector_status_disconnected; | |
145 | if (connector->funcs->force) | |
146 | connector->funcs->force(connector); | |
e58f637b | 147 | } else { |
930a9e28 | 148 | connector->status = connector->funcs->detect(connector, true); |
e58f637b | 149 | } |
f453ba04 | 150 | |
905bc9ff DV |
151 | /* Re-enable polling in case the global poll config changed. */ |
152 | if (drm_kms_helper_poll != dev->mode_config.poll_running) | |
153 | drm_kms_helper_poll_enable(dev); | |
154 | ||
155 | dev->mode_config.poll_running = drm_kms_helper_poll; | |
156 | ||
f453ba04 | 157 | if (connector->status == connector_status_disconnected) { |
9440106b JG |
158 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n", |
159 | connector->base.id, drm_get_connector_name(connector)); | |
72539832 | 160 | drm_mode_connector_update_edid_property(connector, NULL); |
ebbd97ad | 161 | verbose_prune = false; |
620f3781 | 162 | goto prune; |
f453ba04 DA |
163 | } |
164 | ||
da0df92b CE |
165 | #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE |
166 | count = drm_load_edid_firmware(connector); | |
167 | if (count == 0) | |
168 | #endif | |
169 | count = (*connector_funcs->get_modes)(connector); | |
170 | ||
c7ef35a9 | 171 | if (count == 0 && connector->status == connector_status_connected) |
9632b41f | 172 | count = drm_add_modes_noedid(connector, 1024, 768); |
c7ef35a9 CW |
173 | if (count == 0) |
174 | goto prune; | |
f453ba04 | 175 | |
40a518d9 | 176 | drm_mode_connector_list_update(connector); |
f453ba04 DA |
177 | |
178 | if (maxX && maxY) | |
179 | drm_mode_validate_size(dev, &connector->modes, maxX, | |
180 | maxY, 0); | |
6714977b | 181 | |
182 | if (connector->interlace_allowed) | |
183 | mode_flags |= DRM_MODE_FLAG_INTERLACE; | |
184 | if (connector->doublescan_allowed) | |
185 | mode_flags |= DRM_MODE_FLAG_DBLSCAN; | |
560a067a DL |
186 | if (connector->stereo_allowed) |
187 | mode_flags |= DRM_MODE_FLAG_3D_MASK; | |
6714977b | 188 | drm_mode_validate_flag(connector, mode_flags); |
189 | ||
a1178ca0 | 190 | list_for_each_entry(mode, &connector->modes, head) { |
f453ba04 DA |
191 | if (mode->status == MODE_OK) |
192 | mode->status = connector_funcs->mode_valid(connector, | |
193 | mode); | |
194 | } | |
195 | ||
620f3781 | 196 | prune: |
ebbd97ad | 197 | drm_mode_prune_invalid(dev, &connector->modes, verbose_prune); |
f453ba04 | 198 | |
40a518d9 JB |
199 | if (list_empty(&connector->modes)) |
200 | return 0; | |
f453ba04 | 201 | |
9bc3cd56 VS |
202 | list_for_each_entry(mode, &connector->modes, head) |
203 | mode->vrefresh = drm_mode_vrefresh(mode); | |
204 | ||
f453ba04 DA |
205 | drm_mode_sort(&connector->modes); |
206 | ||
9440106b JG |
207 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id, |
208 | drm_get_connector_name(connector)); | |
a1178ca0 | 209 | list_for_each_entry(mode, &connector->modes, head) { |
f453ba04 DA |
210 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
211 | drm_mode_debug_printmodeline(mode); | |
212 | } | |
40a518d9 JB |
213 | |
214 | return count; | |
f453ba04 DA |
215 | } |
216 | EXPORT_SYMBOL(drm_helper_probe_single_connector_modes); | |
217 | ||
c9fb15f6 KP |
218 | /** |
219 | * drm_helper_encoder_in_use - check if a given encoder is in use | |
220 | * @encoder: encoder to check | |
221 | * | |
222 | * LOCKING: | |
223 | * Caller must hold mode config lock. | |
224 | * | |
225 | * Walk @encoders's DRM device's mode_config and see if it's in use. | |
226 | * | |
227 | * RETURNS: | |
228 | * True if @encoder is part of the mode_config, false otherwise. | |
229 | */ | |
230 | bool drm_helper_encoder_in_use(struct drm_encoder *encoder) | |
231 | { | |
232 | struct drm_connector *connector; | |
233 | struct drm_device *dev = encoder->dev; | |
234 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
235 | if (connector->encoder == encoder) | |
236 | return true; | |
237 | return false; | |
238 | } | |
239 | EXPORT_SYMBOL(drm_helper_encoder_in_use); | |
240 | ||
f453ba04 DA |
241 | /** |
242 | * drm_helper_crtc_in_use - check if a given CRTC is in a mode_config | |
243 | * @crtc: CRTC to check | |
244 | * | |
245 | * LOCKING: | |
246 | * Caller must hold mode config lock. | |
247 | * | |
248 | * Walk @crtc's DRM device's mode_config and see if it's in use. | |
249 | * | |
250 | * RETURNS: | |
251 | * True if @crtc is part of the mode_config, false otherwise. | |
252 | */ | |
253 | bool drm_helper_crtc_in_use(struct drm_crtc *crtc) | |
254 | { | |
255 | struct drm_encoder *encoder; | |
256 | struct drm_device *dev = crtc->dev; | |
257 | /* FIXME: Locking around list access? */ | |
258 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
c9fb15f6 | 259 | if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) |
f453ba04 DA |
260 | return true; |
261 | return false; | |
262 | } | |
263 | EXPORT_SYMBOL(drm_helper_crtc_in_use); | |
264 | ||
86a1b9d1 BS |
265 | static void |
266 | drm_encoder_disable(struct drm_encoder *encoder) | |
267 | { | |
268 | struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; | |
269 | ||
3b336ec4 SP |
270 | if (encoder->bridge) |
271 | encoder->bridge->funcs->disable(encoder->bridge); | |
272 | ||
86a1b9d1 BS |
273 | if (encoder_funcs->disable) |
274 | (*encoder_funcs->disable)(encoder); | |
275 | else | |
276 | (*encoder_funcs->dpms)(encoder, DRM_MODE_DPMS_OFF); | |
3b336ec4 SP |
277 | |
278 | if (encoder->bridge) | |
279 | encoder->bridge->funcs->post_disable(encoder->bridge); | |
86a1b9d1 BS |
280 | } |
281 | ||
f453ba04 | 282 | /** |
89347bb8 | 283 | * drm_helper_disable_unused_functions - disable unused objects |
f453ba04 DA |
284 | * @dev: DRM device |
285 | * | |
286 | * LOCKING: | |
287 | * Caller must hold mode config lock. | |
288 | * | |
289 | * If an connector or CRTC isn't part of @dev's mode_config, it can be disabled | |
290 | * by calling its dpms function, which should power it off. | |
291 | */ | |
292 | void drm_helper_disable_unused_functions(struct drm_device *dev) | |
293 | { | |
294 | struct drm_encoder *encoder; | |
a3a0544b | 295 | struct drm_connector *connector; |
f453ba04 DA |
296 | struct drm_crtc *crtc; |
297 | ||
a3a0544b DA |
298 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
299 | if (!connector->encoder) | |
300 | continue; | |
301 | if (connector->status == connector_status_disconnected) | |
302 | connector->encoder = NULL; | |
303 | } | |
304 | ||
f453ba04 | 305 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
92971021 | 306 | if (!drm_helper_encoder_in_use(encoder)) { |
86a1b9d1 | 307 | drm_encoder_disable(encoder); |
9c552dd7 DA |
308 | /* disconnector encoder from any connector */ |
309 | encoder->crtc = NULL; | |
a3a0544b | 310 | } |
f453ba04 DA |
311 | } |
312 | ||
313 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
314 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
315 | crtc->enabled = drm_helper_crtc_in_use(crtc); | |
316 | if (!crtc->enabled) { | |
5c8d7171 AD |
317 | if (crtc_funcs->disable) |
318 | (*crtc_funcs->disable)(crtc); | |
319 | else | |
320 | (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF); | |
f453ba04 DA |
321 | crtc->fb = NULL; |
322 | } | |
323 | } | |
324 | } | |
325 | EXPORT_SYMBOL(drm_helper_disable_unused_functions); | |
326 | ||
7bec756c JB |
327 | /** |
328 | * drm_encoder_crtc_ok - can a given crtc drive a given encoder? | |
329 | * @encoder: encoder to test | |
330 | * @crtc: crtc to test | |
331 | * | |
332 | * Return false if @encoder can't be driven by @crtc, true otherwise. | |
333 | */ | |
334 | static bool drm_encoder_crtc_ok(struct drm_encoder *encoder, | |
335 | struct drm_crtc *crtc) | |
336 | { | |
337 | struct drm_device *dev; | |
338 | struct drm_crtc *tmp; | |
339 | int crtc_mask = 1; | |
340 | ||
fce7d61b | 341 | WARN(!crtc, "checking null crtc?\n"); |
7bec756c JB |
342 | |
343 | dev = crtc->dev; | |
344 | ||
345 | list_for_each_entry(tmp, &dev->mode_config.crtc_list, head) { | |
346 | if (tmp == crtc) | |
347 | break; | |
348 | crtc_mask <<= 1; | |
349 | } | |
350 | ||
351 | if (encoder->possible_crtcs & crtc_mask) | |
352 | return true; | |
353 | return false; | |
354 | } | |
355 | ||
356 | /* | |
357 | * Check the CRTC we're going to map each output to vs. its current | |
358 | * CRTC. If they don't match, we have to disable the output and the CRTC | |
359 | * since the driver will have to re-route things. | |
360 | */ | |
361 | static void | |
362 | drm_crtc_prepare_encoders(struct drm_device *dev) | |
363 | { | |
364 | struct drm_encoder_helper_funcs *encoder_funcs; | |
365 | struct drm_encoder *encoder; | |
366 | ||
367 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
368 | encoder_funcs = encoder->helper_private; | |
369 | /* Disable unused encoders */ | |
370 | if (encoder->crtc == NULL) | |
86a1b9d1 | 371 | drm_encoder_disable(encoder); |
7bec756c JB |
372 | /* Disable encoders whose CRTC is about to change */ |
373 | if (encoder_funcs->get_crtc && | |
374 | encoder->crtc != (*encoder_funcs->get_crtc)(encoder)) | |
86a1b9d1 | 375 | drm_encoder_disable(encoder); |
7bec756c JB |
376 | } |
377 | } | |
378 | ||
f453ba04 | 379 | /** |
0d4ed4c8 | 380 | * drm_crtc_helper_set_mode - internal helper to set a mode |
f453ba04 DA |
381 | * @crtc: CRTC to program |
382 | * @mode: mode to use | |
4c9287c6 AD |
383 | * @x: horizontal offset into the surface |
384 | * @y: vertical offset into the surface | |
0d4ed4c8 | 385 | * @old_fb: old framebuffer, for cleanup |
f453ba04 DA |
386 | * |
387 | * LOCKING: | |
388 | * Caller must hold mode config lock. | |
389 | * | |
390 | * Try to set @mode on @crtc. Give @crtc and its associated connectors a chance | |
0d4ed4c8 DV |
391 | * to fixup or reject the mode prior to trying to set it. This is an internal |
392 | * helper that drivers could e.g. use to update properties that require the | |
393 | * entire output pipe to be disabled and re-enabled in a new configuration. For | |
394 | * example for changing whether audio is enabled on a hdmi link or for changing | |
395 | * panel fitter or dither attributes. It is also called by the | |
396 | * drm_crtc_helper_set_config() helper function to drive the mode setting | |
397 | * sequence. | |
f453ba04 DA |
398 | * |
399 | * RETURNS: | |
400 | * True if the mode was set successfully, or false otherwise. | |
401 | */ | |
402 | bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, | |
403 | struct drm_display_mode *mode, | |
3c4fdcfb KH |
404 | int x, int y, |
405 | struct drm_framebuffer *old_fb) | |
f453ba04 DA |
406 | { |
407 | struct drm_device *dev = crtc->dev; | |
7e99acdc | 408 | struct drm_display_mode *adjusted_mode, saved_mode; |
f453ba04 DA |
409 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; |
410 | struct drm_encoder_helper_funcs *encoder_funcs; | |
411 | int saved_x, saved_y; | |
7e99acdc | 412 | bool saved_enabled; |
f453ba04 DA |
413 | struct drm_encoder *encoder; |
414 | bool ret = true; | |
415 | ||
7e99acdc | 416 | saved_enabled = crtc->enabled; |
f453ba04 | 417 | crtc->enabled = drm_helper_crtc_in_use(crtc); |
f453ba04 DA |
418 | if (!crtc->enabled) |
419 | return true; | |
420 | ||
021a8455 | 421 | adjusted_mode = drm_mode_duplicate(dev, mode); |
7e99acdc IH |
422 | if (!adjusted_mode) { |
423 | crtc->enabled = saved_enabled; | |
6bfc56aa | 424 | return false; |
7e99acdc | 425 | } |
021a8455 | 426 | |
f453ba04 DA |
427 | saved_mode = crtc->mode; |
428 | saved_x = crtc->x; | |
429 | saved_y = crtc->y; | |
430 | ||
431 | /* Update crtc values up front so the driver can rely on them for mode | |
432 | * setting. | |
433 | */ | |
434 | crtc->mode = *mode; | |
435 | crtc->x = x; | |
436 | crtc->y = y; | |
437 | ||
f453ba04 DA |
438 | /* Pass our mode to the connectors and the CRTC to give them a chance to |
439 | * adjust it according to limitations or connector properties, and also | |
440 | * a chance to reject the mode entirely. | |
441 | */ | |
442 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
443 | ||
444 | if (encoder->crtc != crtc) | |
445 | continue; | |
3b336ec4 SP |
446 | |
447 | if (encoder->bridge && encoder->bridge->funcs->mode_fixup) { | |
448 | ret = encoder->bridge->funcs->mode_fixup( | |
449 | encoder->bridge, mode, adjusted_mode); | |
450 | if (!ret) { | |
451 | DRM_DEBUG_KMS("Bridge fixup failed\n"); | |
452 | goto done; | |
453 | } | |
454 | } | |
455 | ||
f453ba04 DA |
456 | encoder_funcs = encoder->helper_private; |
457 | if (!(ret = encoder_funcs->mode_fixup(encoder, mode, | |
458 | adjusted_mode))) { | |
836e53d7 | 459 | DRM_DEBUG_KMS("Encoder fixup failed\n"); |
f453ba04 DA |
460 | goto done; |
461 | } | |
462 | } | |
463 | ||
464 | if (!(ret = crtc_funcs->mode_fixup(crtc, mode, adjusted_mode))) { | |
836e53d7 | 465 | DRM_DEBUG_KMS("CRTC fixup failed\n"); |
f453ba04 DA |
466 | goto done; |
467 | } | |
9440106b | 468 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
469 | |
470 | /* Prepare the encoders and CRTCs before setting the mode. */ | |
471 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
472 | ||
473 | if (encoder->crtc != crtc) | |
474 | continue; | |
3b336ec4 SP |
475 | |
476 | if (encoder->bridge) | |
477 | encoder->bridge->funcs->disable(encoder->bridge); | |
478 | ||
f453ba04 DA |
479 | encoder_funcs = encoder->helper_private; |
480 | /* Disable the encoders as the first thing we do. */ | |
481 | encoder_funcs->prepare(encoder); | |
3b336ec4 SP |
482 | |
483 | if (encoder->bridge) | |
484 | encoder->bridge->funcs->post_disable(encoder->bridge); | |
f453ba04 DA |
485 | } |
486 | ||
7bec756c JB |
487 | drm_crtc_prepare_encoders(dev); |
488 | ||
f453ba04 DA |
489 | crtc_funcs->prepare(crtc); |
490 | ||
491 | /* Set up the DPLL and any encoders state that needs to adjust or depend | |
492 | * on the DPLL. | |
493 | */ | |
5c3b82e2 CW |
494 | ret = !crtc_funcs->mode_set(crtc, mode, adjusted_mode, x, y, old_fb); |
495 | if (!ret) | |
496 | goto done; | |
f453ba04 DA |
497 | |
498 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
499 | ||
500 | if (encoder->crtc != crtc) | |
501 | continue; | |
502 | ||
9440106b JG |
503 | DRM_DEBUG_KMS("[ENCODER:%d:%s] set [MODE:%d:%s]\n", |
504 | encoder->base.id, drm_get_encoder_name(encoder), | |
505 | mode->base.id, mode->name); | |
f453ba04 DA |
506 | encoder_funcs = encoder->helper_private; |
507 | encoder_funcs->mode_set(encoder, mode, adjusted_mode); | |
3b336ec4 SP |
508 | |
509 | if (encoder->bridge && encoder->bridge->funcs->mode_set) | |
510 | encoder->bridge->funcs->mode_set(encoder->bridge, mode, | |
511 | adjusted_mode); | |
f453ba04 DA |
512 | } |
513 | ||
514 | /* Now enable the clocks, plane, pipe, and connectors that we set up. */ | |
515 | crtc_funcs->commit(crtc); | |
516 | ||
517 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
518 | ||
519 | if (encoder->crtc != crtc) | |
520 | continue; | |
521 | ||
3b336ec4 SP |
522 | if (encoder->bridge) |
523 | encoder->bridge->funcs->pre_enable(encoder->bridge); | |
524 | ||
f453ba04 DA |
525 | encoder_funcs = encoder->helper_private; |
526 | encoder_funcs->commit(encoder); | |
527 | ||
3b336ec4 SP |
528 | if (encoder->bridge) |
529 | encoder->bridge->funcs->enable(encoder->bridge); | |
f453ba04 DA |
530 | } |
531 | ||
27641c3f MK |
532 | /* Store real post-adjustment hardware mode. */ |
533 | crtc->hwmode = *adjusted_mode; | |
534 | ||
535 | /* Calculate and store various constants which | |
536 | * are later needed by vblank and swap-completion | |
537 | * timestamping. They are derived from true hwmode. | |
538 | */ | |
539 | drm_calc_timestamping_constants(crtc); | |
540 | ||
f453ba04 DA |
541 | /* FIXME: add subpixel order */ |
542 | done: | |
021a8455 | 543 | drm_mode_destroy(dev, adjusted_mode); |
f453ba04 | 544 | if (!ret) { |
7e99acdc | 545 | crtc->enabled = saved_enabled; |
f453ba04 DA |
546 | crtc->mode = saved_mode; |
547 | crtc->x = saved_x; | |
548 | crtc->y = saved_y; | |
549 | } | |
550 | ||
551 | return ret; | |
552 | } | |
553 | EXPORT_SYMBOL(drm_crtc_helper_set_mode); | |
554 | ||
555 | ||
6eebd6bb CW |
556 | static int |
557 | drm_crtc_helper_disable(struct drm_crtc *crtc) | |
558 | { | |
559 | struct drm_device *dev = crtc->dev; | |
560 | struct drm_connector *connector; | |
561 | struct drm_encoder *encoder; | |
562 | ||
563 | /* Decouple all encoders and their attached connectors from this crtc */ | |
564 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
565 | if (encoder->crtc != crtc) | |
566 | continue; | |
567 | ||
568 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
569 | if (connector->encoder != encoder) | |
570 | continue; | |
571 | ||
572 | connector->encoder = NULL; | |
a6ad6230 TR |
573 | |
574 | /* | |
575 | * drm_helper_disable_unused_functions() ought to be | |
576 | * doing this, but since we've decoupled the encoder | |
577 | * from the connector above, the required connection | |
578 | * between them is henceforth no longer available. | |
579 | */ | |
580 | connector->dpms = DRM_MODE_DPMS_OFF; | |
6eebd6bb CW |
581 | } |
582 | } | |
583 | ||
584 | drm_helper_disable_unused_functions(dev); | |
585 | return 0; | |
586 | } | |
587 | ||
f453ba04 DA |
588 | /** |
589 | * drm_crtc_helper_set_config - set a new config from userspace | |
0d4ed4c8 | 590 | * @set: mode set configuration |
f453ba04 DA |
591 | * |
592 | * LOCKING: | |
593 | * Caller must hold mode config lock. | |
594 | * | |
0d4ed4c8 DV |
595 | * Setup a new configuration, provided by the upper layers (either an ioctl call |
596 | * from userspace or internally e.g. from the fbdev suppport code) in @set, and | |
597 | * enable it. This is the main helper functions for drivers that implement | |
598 | * kernel mode setting with the crtc helper functions and the assorted | |
599 | * ->prepare(), ->modeset() and ->commit() helper callbacks. | |
f453ba04 DA |
600 | * |
601 | * RETURNS: | |
0d4ed4c8 | 602 | * Returns 0 on success, -ERRNO on failure. |
f453ba04 DA |
603 | */ |
604 | int drm_crtc_helper_set_config(struct drm_mode_set *set) | |
605 | { | |
606 | struct drm_device *dev; | |
e67aae79 MM |
607 | struct drm_crtc *save_crtcs, *new_crtc, *crtc; |
608 | struct drm_encoder *save_encoders, *new_encoder, *encoder; | |
4cb72b17 JB |
609 | bool mode_changed = false; /* if true do a full mode set */ |
610 | bool fb_changed = false; /* if true and !mode_changed just do a flip */ | |
e67aae79 | 611 | struct drm_connector *save_connectors, *connector; |
f453ba04 DA |
612 | int count = 0, ro, fail = 0; |
613 | struct drm_crtc_helper_funcs *crtc_funcs; | |
c5006cfe | 614 | struct drm_mode_set save_set; |
4a1b0714 | 615 | int ret; |
bf9dc102 | 616 | int i; |
f453ba04 | 617 | |
58367ed6 | 618 | DRM_DEBUG_KMS("\n"); |
f453ba04 | 619 | |
e58de880 DV |
620 | BUG_ON(!set); |
621 | BUG_ON(!set->crtc); | |
622 | BUG_ON(!set->crtc->helper_private); | |
f453ba04 | 623 | |
e58de880 DV |
624 | /* Enforce sane interface api - has been abused by the fb helper. */ |
625 | BUG_ON(!set->mode && set->fb); | |
626 | BUG_ON(set->fb && set->num_connectors == 0); | |
f453ba04 DA |
627 | |
628 | crtc_funcs = set->crtc->helper_private; | |
629 | ||
ede3ff52 CW |
630 | if (!set->mode) |
631 | set->fb = NULL; | |
632 | ||
9440106b JG |
633 | if (set->fb) { |
634 | DRM_DEBUG_KMS("[CRTC:%d] [FB:%d] #connectors=%d (x y) (%i %i)\n", | |
635 | set->crtc->base.id, set->fb->base.id, | |
636 | (int)set->num_connectors, set->x, set->y); | |
637 | } else { | |
ede3ff52 | 638 | DRM_DEBUG_KMS("[CRTC:%d] [NOFB]\n", set->crtc->base.id); |
6eebd6bb | 639 | return drm_crtc_helper_disable(set->crtc); |
9440106b | 640 | } |
f453ba04 DA |
641 | |
642 | dev = set->crtc->dev; | |
643 | ||
e67aae79 MM |
644 | /* Allocate space for the backup of all (non-pointer) crtc, encoder and |
645 | * connector data. */ | |
646 | save_crtcs = kzalloc(dev->mode_config.num_crtc * | |
647 | sizeof(struct drm_crtc), GFP_KERNEL); | |
f453ba04 DA |
648 | if (!save_crtcs) |
649 | return -ENOMEM; | |
650 | ||
e67aae79 MM |
651 | save_encoders = kzalloc(dev->mode_config.num_encoder * |
652 | sizeof(struct drm_encoder), GFP_KERNEL); | |
f453ba04 DA |
653 | if (!save_encoders) { |
654 | kfree(save_crtcs); | |
655 | return -ENOMEM; | |
656 | } | |
657 | ||
e67aae79 MM |
658 | save_connectors = kzalloc(dev->mode_config.num_connector * |
659 | sizeof(struct drm_connector), GFP_KERNEL); | |
660 | if (!save_connectors) { | |
661 | kfree(save_crtcs); | |
662 | kfree(save_encoders); | |
663 | return -ENOMEM; | |
664 | } | |
665 | ||
666 | /* Copy data. Note that driver private data is not affected. | |
667 | * Should anything bad happen only the expected state is | |
668 | * restored, not the drivers personal bookkeeping. | |
669 | */ | |
670 | count = 0; | |
671 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
672 | save_crtcs[count++] = *crtc; | |
673 | } | |
674 | ||
675 | count = 0; | |
676 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
677 | save_encoders[count++] = *encoder; | |
678 | } | |
679 | ||
680 | count = 0; | |
681 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
682 | save_connectors[count++] = *connector; | |
683 | } | |
684 | ||
c5006cfe JB |
685 | save_set.crtc = set->crtc; |
686 | save_set.mode = &set->crtc->mode; | |
687 | save_set.x = set->crtc->x; | |
688 | save_set.y = set->crtc->y; | |
689 | save_set.fb = set->crtc->fb; | |
690 | ||
f453ba04 DA |
691 | /* We should be able to check here if the fb has the same properties |
692 | * and then just flip_or_move it */ | |
693 | if (set->crtc->fb != set->fb) { | |
712531bf | 694 | /* If we have no fb then treat it as a full mode set */ |
7bec756c | 695 | if (set->crtc->fb == NULL) { |
58367ed6 | 696 | DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); |
712531bf | 697 | mode_changed = true; |
4cb72b17 JB |
698 | } else if (set->fb == NULL) { |
699 | mode_changed = true; | |
ce83adf7 LP |
700 | } else if (set->fb->pixel_format != |
701 | set->crtc->fb->pixel_format) { | |
702 | mode_changed = true; | |
8dff4742 | 703 | } else |
712531bf | 704 | fb_changed = true; |
f453ba04 DA |
705 | } |
706 | ||
707 | if (set->x != set->crtc->x || set->y != set->crtc->y) | |
712531bf | 708 | fb_changed = true; |
f453ba04 DA |
709 | |
710 | if (set->mode && !drm_mode_equal(set->mode, &set->crtc->mode)) { | |
58367ed6 | 711 | DRM_DEBUG_KMS("modes are different, full mode set\n"); |
f453ba04 DA |
712 | drm_mode_debug_printmodeline(&set->crtc->mode); |
713 | drm_mode_debug_printmodeline(set->mode); | |
712531bf | 714 | mode_changed = true; |
f453ba04 DA |
715 | } |
716 | ||
717 | /* a) traverse passed in connector list and get encoders for them */ | |
718 | count = 0; | |
719 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
720 | struct drm_connector_helper_funcs *connector_funcs = | |
721 | connector->helper_private; | |
f453ba04 DA |
722 | new_encoder = connector->encoder; |
723 | for (ro = 0; ro < set->num_connectors; ro++) { | |
724 | if (set->connectors[ro] == connector) { | |
725 | new_encoder = connector_funcs->best_encoder(connector); | |
726 | /* if we can't get an encoder for a connector | |
727 | we are setting now - then fail */ | |
728 | if (new_encoder == NULL) | |
729 | /* don't break so fail path works correct */ | |
730 | fail = 1; | |
731 | break; | |
25f397a4 DV |
732 | |
733 | if (connector->dpms != DRM_MODE_DPMS_ON) { | |
734 | DRM_DEBUG_KMS("connector dpms not on, full mode switch\n"); | |
735 | mode_changed = true; | |
736 | } | |
f453ba04 DA |
737 | } |
738 | } | |
739 | ||
740 | if (new_encoder != connector->encoder) { | |
58367ed6 | 741 | DRM_DEBUG_KMS("encoder changed, full mode switch\n"); |
712531bf | 742 | mode_changed = true; |
ff846ab7 MM |
743 | /* If the encoder is reused for another connector, then |
744 | * the appropriate crtc will be set later. | |
745 | */ | |
ff6fdbed MM |
746 | if (connector->encoder) |
747 | connector->encoder->crtc = NULL; | |
f453ba04 DA |
748 | connector->encoder = new_encoder; |
749 | } | |
750 | } | |
751 | ||
752 | if (fail) { | |
753 | ret = -EINVAL; | |
e67aae79 | 754 | goto fail; |
f453ba04 DA |
755 | } |
756 | ||
757 | count = 0; | |
758 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
759 | if (!connector->encoder) | |
760 | continue; | |
761 | ||
f453ba04 DA |
762 | if (connector->encoder->crtc == set->crtc) |
763 | new_crtc = NULL; | |
764 | else | |
765 | new_crtc = connector->encoder->crtc; | |
766 | ||
767 | for (ro = 0; ro < set->num_connectors; ro++) { | |
768 | if (set->connectors[ro] == connector) | |
769 | new_crtc = set->crtc; | |
770 | } | |
7bec756c JB |
771 | |
772 | /* Make sure the new CRTC will work with the encoder */ | |
773 | if (new_crtc && | |
774 | !drm_encoder_crtc_ok(connector->encoder, new_crtc)) { | |
775 | ret = -EINVAL; | |
e67aae79 | 776 | goto fail; |
7bec756c | 777 | } |
f453ba04 | 778 | if (new_crtc != connector->encoder->crtc) { |
58367ed6 | 779 | DRM_DEBUG_KMS("crtc changed, full mode switch\n"); |
712531bf | 780 | mode_changed = true; |
f453ba04 DA |
781 | connector->encoder->crtc = new_crtc; |
782 | } | |
9440106b JG |
783 | if (new_crtc) { |
784 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [CRTC:%d]\n", | |
785 | connector->base.id, drm_get_connector_name(connector), | |
786 | new_crtc->base.id); | |
787 | } else { | |
788 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] to [NOCRTC]\n", | |
789 | connector->base.id, drm_get_connector_name(connector)); | |
790 | } | |
f453ba04 DA |
791 | } |
792 | ||
793 | /* mode_set_base is not a required function */ | |
712531bf JB |
794 | if (fb_changed && !crtc_funcs->mode_set_base) |
795 | mode_changed = true; | |
f453ba04 | 796 | |
712531bf | 797 | if (mode_changed) { |
48b1f5dd | 798 | if (drm_helper_crtc_in_use(set->crtc)) { |
58367ed6 ZY |
799 | DRM_DEBUG_KMS("attempting to set mode from" |
800 | " userspace\n"); | |
f453ba04 | 801 | drm_mode_debug_printmodeline(set->mode); |
356ad3cd | 802 | set->crtc->fb = set->fb; |
f453ba04 | 803 | if (!drm_crtc_helper_set_mode(set->crtc, set->mode, |
3c4fdcfb | 804 | set->x, set->y, |
bec2eac3 | 805 | save_set.fb)) { |
9440106b JG |
806 | DRM_ERROR("failed to set mode on [CRTC:%d]\n", |
807 | set->crtc->base.id); | |
bec2eac3 | 808 | set->crtc->fb = save_set.fb; |
f453ba04 | 809 | ret = -EINVAL; |
e67aae79 | 810 | goto fail; |
f453ba04 | 811 | } |
25f397a4 DV |
812 | DRM_DEBUG_KMS("Setting connector DPMS state to on\n"); |
813 | for (i = 0; i < set->num_connectors; i++) { | |
814 | DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id, | |
815 | drm_get_connector_name(set->connectors[i])); | |
816 | set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON); | |
817 | } | |
f453ba04 DA |
818 | } |
819 | drm_helper_disable_unused_functions(dev); | |
712531bf | 820 | } else if (fb_changed) { |
9b1596af BS |
821 | set->crtc->x = set->x; |
822 | set->crtc->y = set->y; | |
fc50a890 | 823 | set->crtc->fb = set->fb; |
5c3b82e2 | 824 | ret = crtc_funcs->mode_set_base(set->crtc, |
bec2eac3 | 825 | set->x, set->y, save_set.fb); |
0ba41e44 | 826 | if (ret != 0) { |
fbce4064 IH |
827 | set->crtc->x = save_set.x; |
828 | set->crtc->y = save_set.y; | |
bec2eac3 | 829 | set->crtc->fb = save_set.fb; |
e67aae79 | 830 | goto fail; |
0ba41e44 | 831 | } |
f453ba04 DA |
832 | } |
833 | ||
e67aae79 | 834 | kfree(save_connectors); |
f453ba04 DA |
835 | kfree(save_encoders); |
836 | kfree(save_crtcs); | |
837 | return 0; | |
838 | ||
e67aae79 MM |
839 | fail: |
840 | /* Restore all previous data. */ | |
f453ba04 | 841 | count = 0; |
e67aae79 MM |
842 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
843 | *crtc = save_crtcs[count++]; | |
844 | } | |
e62fb64e | 845 | |
e67aae79 MM |
846 | count = 0; |
847 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
848 | *encoder = save_encoders[count++]; | |
e62fb64e | 849 | } |
e67aae79 | 850 | |
f453ba04 DA |
851 | count = 0; |
852 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
e67aae79 | 853 | *connector = save_connectors[count++]; |
f453ba04 | 854 | } |
e67aae79 | 855 | |
c5006cfe JB |
856 | /* Try to restore the config */ |
857 | if (mode_changed && | |
858 | !drm_crtc_helper_set_mode(save_set.crtc, save_set.mode, save_set.x, | |
859 | save_set.y, save_set.fb)) | |
860 | DRM_ERROR("failed to restore config after modeset failure\n"); | |
861 | ||
e67aae79 | 862 | kfree(save_connectors); |
f453ba04 | 863 | kfree(save_encoders); |
e67aae79 | 864 | kfree(save_crtcs); |
f453ba04 DA |
865 | return ret; |
866 | } | |
867 | EXPORT_SYMBOL(drm_crtc_helper_set_config); | |
868 | ||
c9fb15f6 KP |
869 | static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder) |
870 | { | |
871 | int dpms = DRM_MODE_DPMS_OFF; | |
872 | struct drm_connector *connector; | |
873 | struct drm_device *dev = encoder->dev; | |
874 | ||
875 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
876 | if (connector->encoder == encoder) | |
877 | if (connector->dpms < dpms) | |
878 | dpms = connector->dpms; | |
879 | return dpms; | |
880 | } | |
881 | ||
3b336ec4 SP |
882 | /* Helper which handles bridge ordering around encoder dpms */ |
883 | static void drm_helper_encoder_dpms(struct drm_encoder *encoder, int mode) | |
884 | { | |
885 | struct drm_bridge *bridge = encoder->bridge; | |
886 | struct drm_encoder_helper_funcs *encoder_funcs; | |
887 | ||
888 | if (bridge) { | |
889 | if (mode == DRM_MODE_DPMS_ON) | |
890 | bridge->funcs->pre_enable(bridge); | |
891 | else | |
892 | bridge->funcs->disable(bridge); | |
893 | } | |
894 | ||
895 | encoder_funcs = encoder->helper_private; | |
896 | if (encoder_funcs->dpms) | |
897 | encoder_funcs->dpms(encoder, mode); | |
898 | ||
899 | if (bridge) { | |
900 | if (mode == DRM_MODE_DPMS_ON) | |
901 | bridge->funcs->enable(bridge); | |
902 | else | |
903 | bridge->funcs->post_disable(bridge); | |
904 | } | |
905 | } | |
906 | ||
c9fb15f6 KP |
907 | static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) |
908 | { | |
909 | int dpms = DRM_MODE_DPMS_OFF; | |
910 | struct drm_connector *connector; | |
911 | struct drm_device *dev = crtc->dev; | |
912 | ||
913 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
914 | if (connector->encoder && connector->encoder->crtc == crtc) | |
915 | if (connector->dpms < dpms) | |
916 | dpms = connector->dpms; | |
917 | return dpms; | |
918 | } | |
919 | ||
920 | /** | |
0d4ed4c8 DV |
921 | * drm_helper_connector_dpms() - connector dpms helper implementation |
922 | * @connector: affected connector | |
923 | * @mode: DPMS mode | |
c9fb15f6 | 924 | * |
0d4ed4c8 DV |
925 | * This is the main helper function provided by the crtc helper framework for |
926 | * implementing the DPMS connector attribute. It computes the new desired DPMS | |
927 | * state for all encoders and crtcs in the output mesh and calls the ->dpms() | |
928 | * callback provided by the driver appropriately. | |
c9fb15f6 KP |
929 | */ |
930 | void drm_helper_connector_dpms(struct drm_connector *connector, int mode) | |
931 | { | |
932 | struct drm_encoder *encoder = connector->encoder; | |
933 | struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; | |
3b336ec4 | 934 | int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF; |
c9fb15f6 KP |
935 | |
936 | if (mode == connector->dpms) | |
937 | return; | |
938 | ||
939 | old_dpms = connector->dpms; | |
940 | connector->dpms = mode; | |
941 | ||
3b336ec4 SP |
942 | if (encoder) |
943 | encoder_dpms = drm_helper_choose_encoder_dpms(encoder); | |
944 | ||
c9fb15f6 KP |
945 | /* from off to on, do crtc then encoder */ |
946 | if (mode < old_dpms) { | |
947 | if (crtc) { | |
948 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
949 | if (crtc_funcs->dpms) | |
950 | (*crtc_funcs->dpms) (crtc, | |
951 | drm_helper_choose_crtc_dpms(crtc)); | |
952 | } | |
3b336ec4 SP |
953 | if (encoder) |
954 | drm_helper_encoder_dpms(encoder, encoder_dpms); | |
c9fb15f6 KP |
955 | } |
956 | ||
957 | /* from on to off, do encoder then crtc */ | |
958 | if (mode > old_dpms) { | |
3b336ec4 SP |
959 | if (encoder) |
960 | drm_helper_encoder_dpms(encoder, encoder_dpms); | |
c9fb15f6 KP |
961 | if (crtc) { |
962 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
963 | if (crtc_funcs->dpms) | |
964 | (*crtc_funcs->dpms) (crtc, | |
965 | drm_helper_choose_crtc_dpms(crtc)); | |
966 | } | |
967 | } | |
968 | ||
969 | return; | |
970 | } | |
971 | EXPORT_SYMBOL(drm_helper_connector_dpms); | |
972 | ||
f453ba04 | 973 | int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb, |
308e5bcb | 974 | struct drm_mode_fb_cmd2 *mode_cmd) |
f453ba04 | 975 | { |
01f2c773 VS |
976 | int i; |
977 | ||
f453ba04 DA |
978 | fb->width = mode_cmd->width; |
979 | fb->height = mode_cmd->height; | |
01f2c773 VS |
980 | for (i = 0; i < 4; i++) { |
981 | fb->pitches[i] = mode_cmd->pitches[i]; | |
982 | fb->offsets[i] = mode_cmd->offsets[i]; | |
983 | } | |
248dbc23 | 984 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth, |
308e5bcb JB |
985 | &fb->bits_per_pixel); |
986 | fb->pixel_format = mode_cmd->pixel_format; | |
f453ba04 DA |
987 | |
988 | return 0; | |
989 | } | |
990 | EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct); | |
991 | ||
992 | int drm_helper_resume_force_mode(struct drm_device *dev) | |
993 | { | |
994 | struct drm_crtc *crtc; | |
89347bb8 | 995 | struct drm_encoder *encoder; |
89347bb8 | 996 | struct drm_crtc_helper_funcs *crtc_funcs; |
3b336ec4 | 997 | int ret, encoder_dpms; |
f453ba04 DA |
998 | |
999 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
1000 | ||
1001 | if (!crtc->enabled) | |
1002 | continue; | |
1003 | ||
3c4fdcfb KH |
1004 | ret = drm_crtc_helper_set_mode(crtc, &crtc->mode, |
1005 | crtc->x, crtc->y, crtc->fb); | |
f453ba04 DA |
1006 | |
1007 | if (ret == false) | |
1008 | DRM_ERROR("failed to set mode on crtc %p\n", crtc); | |
89347bb8 DJ |
1009 | |
1010 | /* Turn off outputs that were already powered off */ | |
1011 | if (drm_helper_choose_crtc_dpms(crtc)) { | |
1012 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
1013 | ||
1014 | if(encoder->crtc != crtc) | |
1015 | continue; | |
1016 | ||
3b336ec4 SP |
1017 | encoder_dpms = drm_helper_choose_encoder_dpms( |
1018 | encoder); | |
1019 | ||
1020 | drm_helper_encoder_dpms(encoder, encoder_dpms); | |
89347bb8 | 1021 | } |
817e631e CW |
1022 | |
1023 | crtc_funcs = crtc->helper_private; | |
1024 | if (crtc_funcs->dpms) | |
1025 | (*crtc_funcs->dpms) (crtc, | |
1026 | drm_helper_choose_crtc_dpms(crtc)); | |
89347bb8 | 1027 | } |
f453ba04 | 1028 | } |
af4fcb57 ZY |
1029 | /* disable the unused connectors while restoring the modesetting */ |
1030 | drm_helper_disable_unused_functions(dev); | |
f453ba04 DA |
1031 | return 0; |
1032 | } | |
1033 | EXPORT_SYMBOL(drm_helper_resume_force_mode); | |
eb1f8e4f | 1034 | |
3d3683f0 DV |
1035 | void drm_kms_helper_hotplug_event(struct drm_device *dev) |
1036 | { | |
1037 | /* send a uevent + call fbdev */ | |
1038 | drm_sysfs_hotplug_event(dev); | |
1039 | if (dev->mode_config.funcs->output_poll_changed) | |
1040 | dev->mode_config.funcs->output_poll_changed(dev); | |
1041 | } | |
1042 | EXPORT_SYMBOL(drm_kms_helper_hotplug_event); | |
1043 | ||
eb1f8e4f | 1044 | #define DRM_OUTPUT_POLL_PERIOD (10*HZ) |
991ea75c | 1045 | static void output_poll_execute(struct work_struct *work) |
eb1f8e4f | 1046 | { |
991ea75c TH |
1047 | struct delayed_work *delayed_work = to_delayed_work(work); |
1048 | struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work); | |
eb1f8e4f | 1049 | struct drm_connector *connector; |
c5027dec | 1050 | enum drm_connector_status old_status; |
d482e5fa | 1051 | bool repoll = false, changed = false; |
eb1f8e4f | 1052 | |
e58f637b CW |
1053 | if (!drm_kms_helper_poll) |
1054 | return; | |
1055 | ||
eb1f8e4f DA |
1056 | mutex_lock(&dev->mode_config.mutex); |
1057 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1058 | ||
11e68685 DV |
1059 | /* Ignore forced connectors. */ |
1060 | if (connector->force) | |
1061 | continue; | |
1062 | ||
816da85a DV |
1063 | /* Ignore HPD capable connectors and connectors where we don't |
1064 | * want any hotplug detection at all for polling. */ | |
1065 | if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD) | |
eb1f8e4f DA |
1066 | continue; |
1067 | ||
a4f968d8 | 1068 | repoll = true; |
eb1f8e4f DA |
1069 | |
1070 | old_status = connector->status; | |
1071 | /* if we are connected and don't want to poll for disconnect | |
1072 | skip it */ | |
1073 | if (old_status == connector_status_connected && | |
816da85a | 1074 | !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT)) |
eb1f8e4f DA |
1075 | continue; |
1076 | ||
c5027dec | 1077 | connector->status = connector->funcs->detect(connector, false); |
b2dfcae3 LD |
1078 | if (old_status != connector->status) { |
1079 | const char *old, *new; | |
1080 | ||
1081 | old = drm_get_connector_status_name(old_status); | |
1082 | new = drm_get_connector_status_name(connector->status); | |
1083 | ||
1084 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] " | |
1085 | "status updated from %s to %s\n", | |
1086 | connector->base.id, | |
1087 | drm_get_connector_name(connector), | |
1088 | old, new); | |
1089 | ||
eb1f8e4f | 1090 | changed = true; |
b2dfcae3 | 1091 | } |
eb1f8e4f DA |
1092 | } |
1093 | ||
1094 | mutex_unlock(&dev->mode_config.mutex); | |
1095 | ||
3d3683f0 DV |
1096 | if (changed) |
1097 | drm_kms_helper_hotplug_event(dev); | |
eb1f8e4f | 1098 | |
9a919c46 | 1099 | if (repoll) |
3b07e9ca | 1100 | schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD); |
eb1f8e4f DA |
1101 | } |
1102 | ||
fbf81762 DA |
1103 | void drm_kms_helper_poll_disable(struct drm_device *dev) |
1104 | { | |
1105 | if (!dev->mode_config.poll_enabled) | |
1106 | return; | |
991ea75c | 1107 | cancel_delayed_work_sync(&dev->mode_config.output_poll_work); |
fbf81762 DA |
1108 | } |
1109 | EXPORT_SYMBOL(drm_kms_helper_poll_disable); | |
1110 | ||
1111 | void drm_kms_helper_poll_enable(struct drm_device *dev) | |
eb1f8e4f | 1112 | { |
eb1f8e4f | 1113 | bool poll = false; |
fbf81762 | 1114 | struct drm_connector *connector; |
eb1f8e4f | 1115 | |
e58f637b CW |
1116 | if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll) |
1117 | return; | |
1118 | ||
eb1f8e4f | 1119 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
a4f968d8 DV |
1120 | if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | |
1121 | DRM_CONNECTOR_POLL_DISCONNECT)) | |
eb1f8e4f DA |
1122 | poll = true; |
1123 | } | |
eb1f8e4f | 1124 | |
9a919c46 | 1125 | if (poll) |
3b07e9ca | 1126 | schedule_delayed_work(&dev->mode_config.output_poll_work, DRM_OUTPUT_POLL_PERIOD); |
eb1f8e4f | 1127 | } |
fbf81762 DA |
1128 | EXPORT_SYMBOL(drm_kms_helper_poll_enable); |
1129 | ||
1130 | void drm_kms_helper_poll_init(struct drm_device *dev) | |
1131 | { | |
991ea75c | 1132 | INIT_DELAYED_WORK(&dev->mode_config.output_poll_work, output_poll_execute); |
fbf81762 DA |
1133 | dev->mode_config.poll_enabled = true; |
1134 | ||
1135 | drm_kms_helper_poll_enable(dev); | |
1136 | } | |
eb1f8e4f DA |
1137 | EXPORT_SYMBOL(drm_kms_helper_poll_init); |
1138 | ||
1139 | void drm_kms_helper_poll_fini(struct drm_device *dev) | |
1140 | { | |
fbf81762 | 1141 | drm_kms_helper_poll_disable(dev); |
eb1f8e4f DA |
1142 | } |
1143 | EXPORT_SYMBOL(drm_kms_helper_poll_fini); | |
1144 | ||
b8206d39 | 1145 | bool drm_helper_hpd_irq_event(struct drm_device *dev) |
eb1f8e4f | 1146 | { |
816da85a DV |
1147 | struct drm_connector *connector; |
1148 | enum drm_connector_status old_status; | |
1149 | bool changed = false; | |
1150 | ||
eb1f8e4f | 1151 | if (!dev->mode_config.poll_enabled) |
b8206d39 | 1152 | return false; |
e58f637b | 1153 | |
816da85a DV |
1154 | mutex_lock(&dev->mode_config.mutex); |
1155 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1156 | ||
1157 | /* Only handle HPD capable connectors. */ | |
1158 | if (!(connector->polled & DRM_CONNECTOR_POLL_HPD)) | |
1159 | continue; | |
1160 | ||
1161 | old_status = connector->status; | |
1162 | ||
1163 | connector->status = connector->funcs->detect(connector, false); | |
ed7951dc | 1164 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n", |
816da85a DV |
1165 | connector->base.id, |
1166 | drm_get_connector_name(connector), | |
ed7951dc LD |
1167 | drm_get_connector_status_name(old_status), |
1168 | drm_get_connector_status_name(connector->status)); | |
816da85a DV |
1169 | if (old_status != connector->status) |
1170 | changed = true; | |
1171 | } | |
1172 | ||
1173 | mutex_unlock(&dev->mode_config.mutex); | |
1174 | ||
1175 | if (changed) | |
1176 | drm_kms_helper_hotplug_event(dev); | |
b8206d39 MAL |
1177 | |
1178 | return changed; | |
816da85a | 1179 | } |
eb1f8e4f | 1180 | EXPORT_SYMBOL(drm_helper_hpd_irq_event); |