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1c248b7d ID |
1 | /* exynos_drm_encoder.c |
2 | * | |
3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
4 | * Authors: | |
5 | * Inki Dae <inki.dae@samsung.com> | |
6 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
7 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
8 | * | |
9 | * Permission is hereby granted, free of charge, to any person obtaining a | |
10 | * copy of this software and associated documentation files (the "Software"), | |
11 | * to deal in the Software without restriction, including without limitation | |
12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
13 | * and/or sell copies of the Software, and to permit persons to whom the | |
14 | * Software is furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice (including the next | |
17 | * paragraph) shall be included in all copies or substantial portions of the | |
18 | * Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
23 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
24 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
25 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
26 | * OTHER DEALINGS IN THE SOFTWARE. | |
27 | */ | |
28 | ||
760285e7 DH |
29 | #include <drm/drmP.h> |
30 | #include <drm/drm_crtc_helper.h> | |
1c248b7d ID |
31 | |
32 | #include "exynos_drm_drv.h" | |
1c248b7d ID |
33 | #include "exynos_drm_encoder.h" |
34 | ||
35 | #define to_exynos_encoder(x) container_of(x, struct exynos_drm_encoder,\ | |
36 | drm_encoder) | |
37 | ||
38 | /* | |
39 | * exynos specific encoder structure. | |
40 | * | |
41 | * @drm_encoder: encoder object. | |
42 | * @manager: specific encoder has its own manager to control a hardware | |
43 | * appropriately and we can access a hardware drawing on this manager. | |
ec05da95 | 44 | * @dpms: store the encoder dpms value. |
1c248b7d ID |
45 | */ |
46 | struct exynos_drm_encoder { | |
47 | struct drm_encoder drm_encoder; | |
48 | struct exynos_drm_manager *manager; | |
ec05da95 | 49 | int dpms; |
1c248b7d ID |
50 | }; |
51 | ||
ec05da95 | 52 | static void exynos_drm_display_power(struct drm_encoder *encoder, int mode) |
1c248b7d ID |
53 | { |
54 | struct drm_device *dev = encoder->dev; | |
55 | struct drm_connector *connector; | |
56 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); | |
ec05da95 ID |
57 | |
58 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
59 | if (connector->encoder == encoder) { | |
60 | struct exynos_drm_display_ops *display_ops = | |
61 | manager->display_ops; | |
62 | ||
63 | DRM_DEBUG_KMS("connector[%d] dpms[%d]\n", | |
64 | connector->base.id, mode); | |
65 | if (display_ops && display_ops->power_on) | |
66 | display_ops->power_on(manager->dev, mode); | |
67 | } | |
68 | } | |
69 | } | |
70 | ||
71 | static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) | |
72 | { | |
73 | struct drm_device *dev = encoder->dev; | |
74 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); | |
396464df | 75 | struct exynos_drm_manager_ops *manager_ops = manager->ops; |
ec05da95 | 76 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
1c248b7d ID |
77 | |
78 | DRM_DEBUG_KMS("%s, encoder dpms: %d\n", __FILE__, mode); | |
79 | ||
ec05da95 ID |
80 | if (exynos_encoder->dpms == mode) { |
81 | DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n"); | |
82 | return; | |
83 | } | |
84 | ||
85 | mutex_lock(&dev->struct_mutex); | |
86 | ||
396464df JS |
87 | switch (mode) { |
88 | case DRM_MODE_DPMS_ON: | |
ec05da95 ID |
89 | if (manager_ops && manager_ops->apply) |
90 | manager_ops->apply(manager->dev); | |
91 | exynos_drm_display_power(encoder, mode); | |
92 | exynos_encoder->dpms = mode; | |
396464df JS |
93 | break; |
94 | case DRM_MODE_DPMS_STANDBY: | |
95 | case DRM_MODE_DPMS_SUSPEND: | |
96 | case DRM_MODE_DPMS_OFF: | |
ec05da95 ID |
97 | exynos_drm_display_power(encoder, mode); |
98 | exynos_encoder->dpms = mode; | |
396464df JS |
99 | break; |
100 | default: | |
101 | DRM_ERROR("unspecified mode %d\n", mode); | |
102 | break; | |
103 | } | |
104 | ||
ec05da95 | 105 | mutex_unlock(&dev->struct_mutex); |
1c248b7d ID |
106 | } |
107 | ||
108 | static bool | |
109 | exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder, | |
e811f5ae | 110 | const struct drm_display_mode *mode, |
1c248b7d ID |
111 | struct drm_display_mode *adjusted_mode) |
112 | { | |
1de425b0 ID |
113 | struct drm_device *dev = encoder->dev; |
114 | struct drm_connector *connector; | |
115 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); | |
116 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
117 | ||
1c248b7d ID |
118 | DRM_DEBUG_KMS("%s\n", __FILE__); |
119 | ||
1de425b0 ID |
120 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
121 | if (connector->encoder == encoder) | |
122 | if (manager_ops && manager_ops->mode_fixup) | |
123 | manager_ops->mode_fixup(manager->dev, connector, | |
124 | mode, adjusted_mode); | |
125 | } | |
1c248b7d ID |
126 | |
127 | return true; | |
128 | } | |
129 | ||
130 | static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder, | |
131 | struct drm_display_mode *mode, | |
132 | struct drm_display_mode *adjusted_mode) | |
133 | { | |
134 | struct drm_device *dev = encoder->dev; | |
135 | struct drm_connector *connector; | |
136 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); | |
137 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
1c248b7d ID |
138 | |
139 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
140 | ||
bebab8ff JS |
141 | exynos_drm_encoder_dpms(encoder, DRM_MODE_DPMS_ON); |
142 | ||
1c248b7d | 143 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
aeb29224 | 144 | if (connector->encoder == encoder) |
1c248b7d | 145 | if (manager_ops && manager_ops->mode_set) |
1de425b0 ID |
146 | manager_ops->mode_set(manager->dev, |
147 | adjusted_mode); | |
1c248b7d ID |
148 | } |
149 | } | |
150 | ||
151 | static void exynos_drm_encoder_prepare(struct drm_encoder *encoder) | |
152 | { | |
153 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
154 | ||
155 | /* drm framework doesn't check NULL. */ | |
156 | } | |
157 | ||
158 | static void exynos_drm_encoder_commit(struct drm_encoder *encoder) | |
159 | { | |
160 | struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); | |
161 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
1c248b7d ID |
162 | |
163 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
164 | ||
165 | if (manager_ops && manager_ops->commit) | |
166 | manager_ops->commit(manager->dev); | |
1c248b7d ID |
167 | } |
168 | ||
1c248b7d ID |
169 | static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = { |
170 | .dpms = exynos_drm_encoder_dpms, | |
171 | .mode_fixup = exynos_drm_encoder_mode_fixup, | |
172 | .mode_set = exynos_drm_encoder_mode_set, | |
173 | .prepare = exynos_drm_encoder_prepare, | |
174 | .commit = exynos_drm_encoder_commit, | |
1c248b7d ID |
175 | }; |
176 | ||
177 | static void exynos_drm_encoder_destroy(struct drm_encoder *encoder) | |
178 | { | |
179 | struct exynos_drm_encoder *exynos_encoder = | |
180 | to_exynos_encoder(encoder); | |
181 | ||
182 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
183 | ||
184 | exynos_encoder->manager->pipe = -1; | |
185 | ||
186 | drm_encoder_cleanup(encoder); | |
1c248b7d ID |
187 | kfree(exynos_encoder); |
188 | } | |
189 | ||
190 | static struct drm_encoder_funcs exynos_encoder_funcs = { | |
191 | .destroy = exynos_drm_encoder_destroy, | |
192 | }; | |
193 | ||
d081f566 ID |
194 | static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder) |
195 | { | |
196 | struct drm_encoder *clone; | |
197 | struct drm_device *dev = encoder->dev; | |
198 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); | |
199 | struct exynos_drm_display_ops *display_ops = | |
200 | exynos_encoder->manager->display_ops; | |
201 | unsigned int clone_mask = 0; | |
202 | int cnt = 0; | |
203 | ||
204 | list_for_each_entry(clone, &dev->mode_config.encoder_list, head) { | |
205 | switch (display_ops->type) { | |
206 | case EXYNOS_DISPLAY_TYPE_LCD: | |
207 | case EXYNOS_DISPLAY_TYPE_HDMI: | |
b73d1230 | 208 | case EXYNOS_DISPLAY_TYPE_VIDI: |
d081f566 ID |
209 | clone_mask |= (1 << (cnt++)); |
210 | break; | |
211 | default: | |
212 | continue; | |
213 | } | |
214 | } | |
215 | ||
216 | return clone_mask; | |
217 | } | |
218 | ||
219 | void exynos_drm_encoder_setup(struct drm_device *dev) | |
220 | { | |
221 | struct drm_encoder *encoder; | |
222 | ||
223 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
224 | ||
225 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
226 | encoder->possible_clones = exynos_drm_encoder_clones(encoder); | |
227 | } | |
228 | ||
1c248b7d ID |
229 | struct drm_encoder * |
230 | exynos_drm_encoder_create(struct drm_device *dev, | |
231 | struct exynos_drm_manager *manager, | |
232 | unsigned int possible_crtcs) | |
233 | { | |
234 | struct drm_encoder *encoder; | |
235 | struct exynos_drm_encoder *exynos_encoder; | |
236 | ||
237 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
238 | ||
239 | if (!manager || !possible_crtcs) | |
240 | return NULL; | |
241 | ||
242 | if (!manager->dev) | |
243 | return NULL; | |
244 | ||
245 | exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL); | |
246 | if (!exynos_encoder) { | |
247 | DRM_ERROR("failed to allocate encoder\n"); | |
248 | return NULL; | |
249 | } | |
250 | ||
ec05da95 | 251 | exynos_encoder->dpms = DRM_MODE_DPMS_OFF; |
1c248b7d ID |
252 | exynos_encoder->manager = manager; |
253 | encoder = &exynos_encoder->drm_encoder; | |
254 | encoder->possible_crtcs = possible_crtcs; | |
255 | ||
256 | DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); | |
257 | ||
258 | drm_encoder_init(dev, encoder, &exynos_encoder_funcs, | |
259 | DRM_MODE_ENCODER_TMDS); | |
260 | ||
261 | drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs); | |
262 | ||
263 | DRM_DEBUG_KMS("encoder has been created\n"); | |
264 | ||
265 | return encoder; | |
266 | } | |
267 | ||
268 | struct exynos_drm_manager *exynos_drm_get_manager(struct drm_encoder *encoder) | |
269 | { | |
270 | return to_exynos_encoder(encoder)->manager; | |
271 | } | |
272 | ||
273 | void exynos_drm_fn_encoder(struct drm_crtc *crtc, void *data, | |
274 | void (*fn)(struct drm_encoder *, void *)) | |
275 | { | |
276 | struct drm_device *dev = crtc->dev; | |
277 | struct drm_encoder *encoder; | |
d2716c89 JS |
278 | struct exynos_drm_private *private = dev->dev_private; |
279 | struct exynos_drm_manager *manager; | |
1c248b7d ID |
280 | |
281 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { | |
d2716c89 JS |
282 | /* |
283 | * if crtc is detached from encoder, check pipe, | |
284 | * otherwise check crtc attached to encoder | |
285 | */ | |
286 | if (!encoder->crtc) { | |
287 | manager = to_exynos_encoder(encoder)->manager; | |
288 | if (manager->pipe < 0 || | |
289 | private->crtc[manager->pipe] != crtc) | |
290 | continue; | |
291 | } else { | |
292 | if (encoder->crtc != crtc) | |
293 | continue; | |
294 | } | |
1c248b7d ID |
295 | |
296 | fn(encoder, data); | |
297 | } | |
298 | } | |
299 | ||
300 | void exynos_drm_enable_vblank(struct drm_encoder *encoder, void *data) | |
301 | { | |
302 | struct exynos_drm_manager *manager = | |
303 | to_exynos_encoder(encoder)->manager; | |
304 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
305 | int crtc = *(int *)data; | |
306 | ||
d249ce02 JS |
307 | if (manager->pipe != crtc) |
308 | return; | |
1c248b7d ID |
309 | |
310 | if (manager_ops->enable_vblank) | |
311 | manager_ops->enable_vblank(manager->dev); | |
312 | } | |
313 | ||
314 | void exynos_drm_disable_vblank(struct drm_encoder *encoder, void *data) | |
315 | { | |
316 | struct exynos_drm_manager *manager = | |
317 | to_exynos_encoder(encoder)->manager; | |
318 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
319 | int crtc = *(int *)data; | |
320 | ||
d249ce02 JS |
321 | if (manager->pipe != crtc) |
322 | return; | |
1c248b7d ID |
323 | |
324 | if (manager_ops->disable_vblank) | |
325 | manager_ops->disable_vblank(manager->dev); | |
326 | } | |
327 | ||
ec05da95 ID |
328 | void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data) |
329 | { | |
ec05da95 ID |
330 | struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); |
331 | struct exynos_drm_manager *manager = exynos_encoder->manager; | |
332 | struct exynos_drm_manager_ops *manager_ops = manager->ops; | |
ec05da95 ID |
333 | int mode = *(int *)data; |
334 | ||
335 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
336 | ||
337 | if (manager_ops && manager_ops->dpms) | |
338 | manager_ops->dpms(manager->dev, mode); | |
339 | ||
ec05da95 ID |
340 | /* |
341 | * if this condition is ok then it means that the crtc is already | |
342 | * detached from encoder and last function for detaching is properly | |
343 | * done, so clear pipe from manager to prevent repeated call. | |
344 | */ | |
345 | if (mode > DRM_MODE_DPMS_ON) { | |
346 | if (!encoder->crtc) | |
347 | manager->pipe = -1; | |
348 | } | |
349 | } | |
350 | ||
4070d212 JS |
351 | void exynos_drm_encoder_crtc_pipe(struct drm_encoder *encoder, void *data) |
352 | { | |
353 | struct exynos_drm_manager *manager = | |
354 | to_exynos_encoder(encoder)->manager; | |
355 | int pipe = *(int *)data; | |
356 | ||
357 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
358 | ||
359 | /* | |
360 | * when crtc is detached from encoder, this pipe is used | |
361 | * to select manager operation | |
362 | */ | |
363 | manager->pipe = pipe; | |
364 | } | |
365 | ||
366 | void exynos_drm_encoder_plane_mode_set(struct drm_encoder *encoder, void *data) | |
1c248b7d ID |
367 | { |
368 | struct exynos_drm_manager *manager = | |
369 | to_exynos_encoder(encoder)->manager; | |
370 | struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; | |
371 | struct exynos_drm_overlay *overlay = data; | |
372 | ||
4070d212 JS |
373 | DRM_DEBUG_KMS("%s\n", __FILE__); |
374 | ||
b0e0f856 SWK |
375 | if (overlay_ops && overlay_ops->mode_set) |
376 | overlay_ops->mode_set(manager->dev, overlay); | |
1c248b7d ID |
377 | } |
378 | ||
4070d212 | 379 | void exynos_drm_encoder_plane_commit(struct drm_encoder *encoder, void *data) |
d2716c89 JS |
380 | { |
381 | struct exynos_drm_manager *manager = | |
382 | to_exynos_encoder(encoder)->manager; | |
383 | struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; | |
864ee9e6 | 384 | int zpos = DEFAULT_ZPOS; |
d2716c89 | 385 | |
4070d212 | 386 | DRM_DEBUG_KMS("%s\n", __FILE__); |
d2716c89 | 387 | |
864ee9e6 JS |
388 | if (data) |
389 | zpos = *(int *)data; | |
390 | ||
4070d212 JS |
391 | if (overlay_ops && overlay_ops->commit) |
392 | overlay_ops->commit(manager->dev, zpos); | |
d2716c89 | 393 | } |
d249ce02 | 394 | |
cf5188ac JS |
395 | void exynos_drm_encoder_plane_enable(struct drm_encoder *encoder, void *data) |
396 | { | |
397 | struct exynos_drm_manager *manager = | |
398 | to_exynos_encoder(encoder)->manager; | |
399 | struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; | |
400 | int zpos = DEFAULT_ZPOS; | |
401 | ||
402 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
403 | ||
404 | if (data) | |
405 | zpos = *(int *)data; | |
406 | ||
407 | if (overlay_ops && overlay_ops->enable) | |
408 | overlay_ops->enable(manager->dev, zpos); | |
409 | } | |
410 | ||
4070d212 | 411 | void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) |
d249ce02 JS |
412 | { |
413 | struct exynos_drm_manager *manager = | |
414 | to_exynos_encoder(encoder)->manager; | |
4070d212 JS |
415 | struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops; |
416 | int zpos = DEFAULT_ZPOS; | |
d249ce02 JS |
417 | |
418 | DRM_DEBUG_KMS("%s\n", __FILE__); | |
419 | ||
4070d212 JS |
420 | if (data) |
421 | zpos = *(int *)data; | |
422 | ||
423 | if (overlay_ops && overlay_ops->disable) | |
424 | overlay_ops->disable(manager->dev, zpos); | |
d249ce02 | 425 | } |