diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-25 19:46:44 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-25 19:46:44 -0500 |
commit | fffddfd6c8e0c10c42c6e2cc54ba880fcc36ebbb (patch) | |
tree | 71bc5e597124dbaf7550f1e089d675718b3ed5c0 /drivers/gpu/drm/omapdrm/omap_crtc.c | |
parent | 69086a78bdc973ec0b722be790b146e84ba8a8c4 (diff) | |
parent | be88298b0a3f771a4802f20c5e66af74bfd1dff1 (diff) |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm merge from Dave Airlie:
"Highlights:
- TI LCD controller KMS driver
- TI OMAP KMS driver merged from staging
- drop gma500 stub driver
- the fbcon locking fixes
- the vgacon dirty like zebra fix.
- open firmware videomode and hdmi common code helpers
- major locking rework for kms object handling - pageflip/cursor
won't block on polling anymore!
- fbcon helper and prime helper cleanups
- i915: all over the map, haswell power well enhancements, valleyview
macro horrors cleaned up, killing lots of legacy GTT code,
- radeon: CS ioctl unification, deprecated UMS support, gpu reset
rework, VM fixes
- nouveau: reworked thermal code, external dp/tmds encoder support
(anx9805), fences sleep instead of polling,
- exynos: all over the driver fixes."
Lovely conflict in radeon/evergreen_cs.c between commit de0babd60d8d
("drm/radeon: enforce use of radeon_get_ib_value when reading user cmd")
and the new changes that modified that evergreen_dma_cs_parse()
function.
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (508 commits)
drm/tilcdc: only build on arm
drm/i915: Revert hdmi HDP pin checks
drm/tegra: Add list of framebuffers to debugfs
drm/tegra: Fix color expansion
drm/tegra: Split DC_CMD_STATE_CONTROL register write
drm/tegra: Implement page-flipping support
drm/tegra: Implement VBLANK support
drm/tegra: Implement .mode_set_base()
drm/tegra: Add plane support
drm/tegra: Remove bogus tegra_framebuffer structure
drm: Add consistency check for page-flipping
drm/radeon: Use generic HDMI infoframe helpers
drm/tegra: Use generic HDMI infoframe helpers
drm: Add EDID helper documentation
drm: Add HDMI infoframe helpers
video: Add generic HDMI infoframe helpers
drm: Add some missing forward declarations
drm: Move mode tables to drm_edid.c
drm: Remove duplicate drm_mode_cea_vic()
gma500: Fix n, m1 and m2 clock limits for sdvo and lvds
...
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_crtc.c')
-rw-r--r-- | drivers/gpu/drm/omapdrm/omap_crtc.c | 654 |
1 files changed, 654 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c new file mode 100644 index 000000000000..bec66a490b8f --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c | |||
@@ -0,0 +1,654 @@ | |||
1 | /* | ||
2 | * drivers/gpu/drm/omapdrm/omap_crtc.c | ||
3 | * | ||
4 | * Copyright (C) 2011 Texas Instruments | ||
5 | * Author: Rob Clark <rob@ti.com> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify it | ||
8 | * under the terms of the GNU General Public License version 2 as published by | ||
9 | * the Free Software Foundation. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | ||
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
14 | * more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License along with | ||
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | #include "omap_drv.h" | ||
21 | |||
22 | #include <drm/drm_mode.h> | ||
23 | #include "drm_crtc.h" | ||
24 | #include "drm_crtc_helper.h" | ||
25 | |||
26 | #define to_omap_crtc(x) container_of(x, struct omap_crtc, base) | ||
27 | |||
28 | struct omap_crtc { | ||
29 | struct drm_crtc base; | ||
30 | struct drm_plane *plane; | ||
31 | |||
32 | const char *name; | ||
33 | int pipe; | ||
34 | enum omap_channel channel; | ||
35 | struct omap_overlay_manager_info info; | ||
36 | |||
37 | /* | ||
38 | * Temporary: eventually this will go away, but it is needed | ||
39 | * for now to keep the output's happy. (They only need | ||
40 | * mgr->id.) Eventually this will be replaced w/ something | ||
41 | * more common-panel-framework-y | ||
42 | */ | ||
43 | struct omap_overlay_manager mgr; | ||
44 | |||
45 | struct omap_video_timings timings; | ||
46 | bool enabled; | ||
47 | bool full_update; | ||
48 | |||
49 | struct omap_drm_apply apply; | ||
50 | |||
51 | struct omap_drm_irq apply_irq; | ||
52 | struct omap_drm_irq error_irq; | ||
53 | |||
54 | /* list of in-progress apply's: */ | ||
55 | struct list_head pending_applies; | ||
56 | |||
57 | /* list of queued apply's: */ | ||
58 | struct list_head queued_applies; | ||
59 | |||
60 | /* for handling queued and in-progress applies: */ | ||
61 | struct work_struct apply_work; | ||
62 | |||
63 | /* if there is a pending flip, these will be non-null: */ | ||
64 | struct drm_pending_vblank_event *event; | ||
65 | struct drm_framebuffer *old_fb; | ||
66 | |||
67 | /* for handling page flips without caring about what | ||
68 | * the callback is called from. Possibly we should just | ||
69 | * make omap_gem always call the cb from the worker so | ||
70 | * we don't have to care about this.. | ||
71 | * | ||
72 | * XXX maybe fold into apply_work?? | ||
73 | */ | ||
74 | struct work_struct page_flip_work; | ||
75 | }; | ||
76 | |||
77 | /* | ||
78 | * Manager-ops, callbacks from output when they need to configure | ||
79 | * the upstream part of the video pipe. | ||
80 | * | ||
81 | * Most of these we can ignore until we add support for command-mode | ||
82 | * panels.. for video-mode the crtc-helpers already do an adequate | ||
83 | * job of sequencing the setup of the video pipe in the proper order | ||
84 | */ | ||
85 | |||
86 | /* we can probably ignore these until we support command-mode panels: */ | ||
87 | static void omap_crtc_start_update(struct omap_overlay_manager *mgr) | ||
88 | { | ||
89 | } | ||
90 | |||
91 | static int omap_crtc_enable(struct omap_overlay_manager *mgr) | ||
92 | { | ||
93 | return 0; | ||
94 | } | ||
95 | |||
96 | static void omap_crtc_disable(struct omap_overlay_manager *mgr) | ||
97 | { | ||
98 | } | ||
99 | |||
100 | static void omap_crtc_set_timings(struct omap_overlay_manager *mgr, | ||
101 | const struct omap_video_timings *timings) | ||
102 | { | ||
103 | struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); | ||
104 | DBG("%s", omap_crtc->name); | ||
105 | omap_crtc->timings = *timings; | ||
106 | omap_crtc->full_update = true; | ||
107 | } | ||
108 | |||
109 | static void omap_crtc_set_lcd_config(struct omap_overlay_manager *mgr, | ||
110 | const struct dss_lcd_mgr_config *config) | ||
111 | { | ||
112 | struct omap_crtc *omap_crtc = container_of(mgr, struct omap_crtc, mgr); | ||
113 | DBG("%s", omap_crtc->name); | ||
114 | dispc_mgr_set_lcd_config(omap_crtc->channel, config); | ||
115 | } | ||
116 | |||
117 | static int omap_crtc_register_framedone_handler( | ||
118 | struct omap_overlay_manager *mgr, | ||
119 | void (*handler)(void *), void *data) | ||
120 | { | ||
121 | return 0; | ||
122 | } | ||
123 | |||
124 | static void omap_crtc_unregister_framedone_handler( | ||
125 | struct omap_overlay_manager *mgr, | ||
126 | void (*handler)(void *), void *data) | ||
127 | { | ||
128 | } | ||
129 | |||
130 | static const struct dss_mgr_ops mgr_ops = { | ||
131 | .start_update = omap_crtc_start_update, | ||
132 | .enable = omap_crtc_enable, | ||
133 | .disable = omap_crtc_disable, | ||
134 | .set_timings = omap_crtc_set_timings, | ||
135 | .set_lcd_config = omap_crtc_set_lcd_config, | ||
136 | .register_framedone_handler = omap_crtc_register_framedone_handler, | ||
137 | .unregister_framedone_handler = omap_crtc_unregister_framedone_handler, | ||
138 | }; | ||
139 | |||
140 | /* | ||
141 | * CRTC funcs: | ||
142 | */ | ||
143 | |||
144 | static void omap_crtc_destroy(struct drm_crtc *crtc) | ||
145 | { | ||
146 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
147 | |||
148 | DBG("%s", omap_crtc->name); | ||
149 | |||
150 | WARN_ON(omap_crtc->apply_irq.registered); | ||
151 | omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); | ||
152 | |||
153 | omap_crtc->plane->funcs->destroy(omap_crtc->plane); | ||
154 | drm_crtc_cleanup(crtc); | ||
155 | |||
156 | kfree(omap_crtc); | ||
157 | } | ||
158 | |||
159 | static void omap_crtc_dpms(struct drm_crtc *crtc, int mode) | ||
160 | { | ||
161 | struct omap_drm_private *priv = crtc->dev->dev_private; | ||
162 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
163 | bool enabled = (mode == DRM_MODE_DPMS_ON); | ||
164 | int i; | ||
165 | |||
166 | DBG("%s: %d", omap_crtc->name, mode); | ||
167 | |||
168 | if (enabled != omap_crtc->enabled) { | ||
169 | omap_crtc->enabled = enabled; | ||
170 | omap_crtc->full_update = true; | ||
171 | omap_crtc_apply(crtc, &omap_crtc->apply); | ||
172 | |||
173 | /* also enable our private plane: */ | ||
174 | WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); | ||
175 | |||
176 | /* and any attached overlay planes: */ | ||
177 | for (i = 0; i < priv->num_planes; i++) { | ||
178 | struct drm_plane *plane = priv->planes[i]; | ||
179 | if (plane->crtc == crtc) | ||
180 | WARN_ON(omap_plane_dpms(plane, mode)); | ||
181 | } | ||
182 | } | ||
183 | } | ||
184 | |||
185 | static bool omap_crtc_mode_fixup(struct drm_crtc *crtc, | ||
186 | const struct drm_display_mode *mode, | ||
187 | struct drm_display_mode *adjusted_mode) | ||
188 | { | ||
189 | return true; | ||
190 | } | ||
191 | |||
192 | static int omap_crtc_mode_set(struct drm_crtc *crtc, | ||
193 | struct drm_display_mode *mode, | ||
194 | struct drm_display_mode *adjusted_mode, | ||
195 | int x, int y, | ||
196 | struct drm_framebuffer *old_fb) | ||
197 | { | ||
198 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
199 | |||
200 | mode = adjusted_mode; | ||
201 | |||
202 | DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", | ||
203 | omap_crtc->name, mode->base.id, mode->name, | ||
204 | mode->vrefresh, mode->clock, | ||
205 | mode->hdisplay, mode->hsync_start, | ||
206 | mode->hsync_end, mode->htotal, | ||
207 | mode->vdisplay, mode->vsync_start, | ||
208 | mode->vsync_end, mode->vtotal, | ||
209 | mode->type, mode->flags); | ||
210 | |||
211 | copy_timings_drm_to_omap(&omap_crtc->timings, mode); | ||
212 | omap_crtc->full_update = true; | ||
213 | |||
214 | return omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, | ||
215 | 0, 0, mode->hdisplay, mode->vdisplay, | ||
216 | x << 16, y << 16, | ||
217 | mode->hdisplay << 16, mode->vdisplay << 16, | ||
218 | NULL, NULL); | ||
219 | } | ||
220 | |||
221 | static void omap_crtc_prepare(struct drm_crtc *crtc) | ||
222 | { | ||
223 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
224 | DBG("%s", omap_crtc->name); | ||
225 | omap_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); | ||
226 | } | ||
227 | |||
228 | static void omap_crtc_commit(struct drm_crtc *crtc) | ||
229 | { | ||
230 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
231 | DBG("%s", omap_crtc->name); | ||
232 | omap_crtc_dpms(crtc, DRM_MODE_DPMS_ON); | ||
233 | } | ||
234 | |||
235 | static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, | ||
236 | struct drm_framebuffer *old_fb) | ||
237 | { | ||
238 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
239 | struct drm_plane *plane = omap_crtc->plane; | ||
240 | struct drm_display_mode *mode = &crtc->mode; | ||
241 | |||
242 | return omap_plane_mode_set(plane, crtc, crtc->fb, | ||
243 | 0, 0, mode->hdisplay, mode->vdisplay, | ||
244 | x << 16, y << 16, | ||
245 | mode->hdisplay << 16, mode->vdisplay << 16, | ||
246 | NULL, NULL); | ||
247 | } | ||
248 | |||
249 | static void omap_crtc_load_lut(struct drm_crtc *crtc) | ||
250 | { | ||
251 | } | ||
252 | |||
253 | static void vblank_cb(void *arg) | ||
254 | { | ||
255 | struct drm_crtc *crtc = arg; | ||
256 | struct drm_device *dev = crtc->dev; | ||
257 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
258 | unsigned long flags; | ||
259 | |||
260 | spin_lock_irqsave(&dev->event_lock, flags); | ||
261 | |||
262 | /* wakeup userspace */ | ||
263 | if (omap_crtc->event) | ||
264 | drm_send_vblank_event(dev, omap_crtc->pipe, omap_crtc->event); | ||
265 | |||
266 | omap_crtc->event = NULL; | ||
267 | omap_crtc->old_fb = NULL; | ||
268 | |||
269 | spin_unlock_irqrestore(&dev->event_lock, flags); | ||
270 | } | ||
271 | |||
272 | static void page_flip_worker(struct work_struct *work) | ||
273 | { | ||
274 | struct omap_crtc *omap_crtc = | ||
275 | container_of(work, struct omap_crtc, page_flip_work); | ||
276 | struct drm_crtc *crtc = &omap_crtc->base; | ||
277 | struct drm_display_mode *mode = &crtc->mode; | ||
278 | struct drm_gem_object *bo; | ||
279 | |||
280 | mutex_lock(&crtc->mutex); | ||
281 | omap_plane_mode_set(omap_crtc->plane, crtc, crtc->fb, | ||
282 | 0, 0, mode->hdisplay, mode->vdisplay, | ||
283 | crtc->x << 16, crtc->y << 16, | ||
284 | mode->hdisplay << 16, mode->vdisplay << 16, | ||
285 | vblank_cb, crtc); | ||
286 | mutex_unlock(&crtc->mutex); | ||
287 | |||
288 | bo = omap_framebuffer_bo(crtc->fb, 0); | ||
289 | drm_gem_object_unreference_unlocked(bo); | ||
290 | } | ||
291 | |||
292 | static void page_flip_cb(void *arg) | ||
293 | { | ||
294 | struct drm_crtc *crtc = arg; | ||
295 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
296 | struct omap_drm_private *priv = crtc->dev->dev_private; | ||
297 | |||
298 | /* avoid assumptions about what ctxt we are called from: */ | ||
299 | queue_work(priv->wq, &omap_crtc->page_flip_work); | ||
300 | } | ||
301 | |||
302 | static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, | ||
303 | struct drm_framebuffer *fb, | ||
304 | struct drm_pending_vblank_event *event) | ||
305 | { | ||
306 | struct drm_device *dev = crtc->dev; | ||
307 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
308 | struct drm_gem_object *bo; | ||
309 | |||
310 | DBG("%d -> %d (event=%p)", crtc->fb ? crtc->fb->base.id : -1, | ||
311 | fb->base.id, event); | ||
312 | |||
313 | if (omap_crtc->old_fb) { | ||
314 | dev_err(dev->dev, "already a pending flip\n"); | ||
315 | return -EINVAL; | ||
316 | } | ||
317 | |||
318 | omap_crtc->event = event; | ||
319 | crtc->fb = fb; | ||
320 | |||
321 | /* | ||
322 | * Hold a reference temporarily until the crtc is updated | ||
323 | * and takes the reference to the bo. This avoids it | ||
324 | * getting freed from under us: | ||
325 | */ | ||
326 | bo = omap_framebuffer_bo(fb, 0); | ||
327 | drm_gem_object_reference(bo); | ||
328 | |||
329 | omap_gem_op_async(bo, OMAP_GEM_READ, page_flip_cb, crtc); | ||
330 | |||
331 | return 0; | ||
332 | } | ||
333 | |||
334 | static int omap_crtc_set_property(struct drm_crtc *crtc, | ||
335 | struct drm_property *property, uint64_t val) | ||
336 | { | ||
337 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
338 | struct omap_drm_private *priv = crtc->dev->dev_private; | ||
339 | |||
340 | if (property == priv->rotation_prop) { | ||
341 | crtc->invert_dimensions = | ||
342 | !!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270))); | ||
343 | } | ||
344 | |||
345 | return omap_plane_set_property(omap_crtc->plane, property, val); | ||
346 | } | ||
347 | |||
348 | static const struct drm_crtc_funcs omap_crtc_funcs = { | ||
349 | .set_config = drm_crtc_helper_set_config, | ||
350 | .destroy = omap_crtc_destroy, | ||
351 | .page_flip = omap_crtc_page_flip_locked, | ||
352 | .set_property = omap_crtc_set_property, | ||
353 | }; | ||
354 | |||
355 | static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = { | ||
356 | .dpms = omap_crtc_dpms, | ||
357 | .mode_fixup = omap_crtc_mode_fixup, | ||
358 | .mode_set = omap_crtc_mode_set, | ||
359 | .prepare = omap_crtc_prepare, | ||
360 | .commit = omap_crtc_commit, | ||
361 | .mode_set_base = omap_crtc_mode_set_base, | ||
362 | .load_lut = omap_crtc_load_lut, | ||
363 | }; | ||
364 | |||
365 | const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc) | ||
366 | { | ||
367 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
368 | return &omap_crtc->timings; | ||
369 | } | ||
370 | |||
371 | enum omap_channel omap_crtc_channel(struct drm_crtc *crtc) | ||
372 | { | ||
373 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
374 | return omap_crtc->channel; | ||
375 | } | ||
376 | |||
377 | static void omap_crtc_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus) | ||
378 | { | ||
379 | struct omap_crtc *omap_crtc = | ||
380 | container_of(irq, struct omap_crtc, error_irq); | ||
381 | struct drm_crtc *crtc = &omap_crtc->base; | ||
382 | DRM_ERROR("%s: errors: %08x\n", omap_crtc->name, irqstatus); | ||
383 | /* avoid getting in a flood, unregister the irq until next vblank */ | ||
384 | omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); | ||
385 | } | ||
386 | |||
387 | static void omap_crtc_apply_irq(struct omap_drm_irq *irq, uint32_t irqstatus) | ||
388 | { | ||
389 | struct omap_crtc *omap_crtc = | ||
390 | container_of(irq, struct omap_crtc, apply_irq); | ||
391 | struct drm_crtc *crtc = &omap_crtc->base; | ||
392 | |||
393 | if (!omap_crtc->error_irq.registered) | ||
394 | omap_irq_register(crtc->dev, &omap_crtc->error_irq); | ||
395 | |||
396 | if (!dispc_mgr_go_busy(omap_crtc->channel)) { | ||
397 | struct omap_drm_private *priv = | ||
398 | crtc->dev->dev_private; | ||
399 | DBG("%s: apply done", omap_crtc->name); | ||
400 | omap_irq_unregister(crtc->dev, &omap_crtc->apply_irq); | ||
401 | queue_work(priv->wq, &omap_crtc->apply_work); | ||
402 | } | ||
403 | } | ||
404 | |||
405 | static void apply_worker(struct work_struct *work) | ||
406 | { | ||
407 | struct omap_crtc *omap_crtc = | ||
408 | container_of(work, struct omap_crtc, apply_work); | ||
409 | struct drm_crtc *crtc = &omap_crtc->base; | ||
410 | struct drm_device *dev = crtc->dev; | ||
411 | struct omap_drm_apply *apply, *n; | ||
412 | bool need_apply; | ||
413 | |||
414 | /* | ||
415 | * Synchronize everything on mode_config.mutex, to keep | ||
416 | * the callbacks and list modification all serialized | ||
417 | * with respect to modesetting ioctls from userspace. | ||
418 | */ | ||
419 | mutex_lock(&crtc->mutex); | ||
420 | dispc_runtime_get(); | ||
421 | |||
422 | /* | ||
423 | * If we are still pending a previous update, wait.. when the | ||
424 | * pending update completes, we get kicked again. | ||
425 | */ | ||
426 | if (omap_crtc->apply_irq.registered) | ||
427 | goto out; | ||
428 | |||
429 | /* finish up previous apply's: */ | ||
430 | list_for_each_entry_safe(apply, n, | ||
431 | &omap_crtc->pending_applies, pending_node) { | ||
432 | apply->post_apply(apply); | ||
433 | list_del(&apply->pending_node); | ||
434 | } | ||
435 | |||
436 | need_apply = !list_empty(&omap_crtc->queued_applies); | ||
437 | |||
438 | /* then handle the next round of of queued apply's: */ | ||
439 | list_for_each_entry_safe(apply, n, | ||
440 | &omap_crtc->queued_applies, queued_node) { | ||
441 | apply->pre_apply(apply); | ||
442 | list_del(&apply->queued_node); | ||
443 | apply->queued = false; | ||
444 | list_add_tail(&apply->pending_node, | ||
445 | &omap_crtc->pending_applies); | ||
446 | } | ||
447 | |||
448 | if (need_apply) { | ||
449 | enum omap_channel channel = omap_crtc->channel; | ||
450 | |||
451 | DBG("%s: GO", omap_crtc->name); | ||
452 | |||
453 | if (dispc_mgr_is_enabled(channel)) { | ||
454 | omap_irq_register(dev, &omap_crtc->apply_irq); | ||
455 | dispc_mgr_go(channel); | ||
456 | } else { | ||
457 | struct omap_drm_private *priv = dev->dev_private; | ||
458 | queue_work(priv->wq, &omap_crtc->apply_work); | ||
459 | } | ||
460 | } | ||
461 | |||
462 | out: | ||
463 | dispc_runtime_put(); | ||
464 | mutex_unlock(&crtc->mutex); | ||
465 | } | ||
466 | |||
467 | int omap_crtc_apply(struct drm_crtc *crtc, | ||
468 | struct omap_drm_apply *apply) | ||
469 | { | ||
470 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
471 | |||
472 | WARN_ON(!mutex_is_locked(&crtc->mutex)); | ||
473 | |||
474 | /* no need to queue it again if it is already queued: */ | ||
475 | if (apply->queued) | ||
476 | return 0; | ||
477 | |||
478 | apply->queued = true; | ||
479 | list_add_tail(&apply->queued_node, &omap_crtc->queued_applies); | ||
480 | |||
481 | /* | ||
482 | * If there are no currently pending updates, then go ahead and | ||
483 | * kick the worker immediately, otherwise it will run again when | ||
484 | * the current update finishes. | ||
485 | */ | ||
486 | if (list_empty(&omap_crtc->pending_applies)) { | ||
487 | struct omap_drm_private *priv = crtc->dev->dev_private; | ||
488 | queue_work(priv->wq, &omap_crtc->apply_work); | ||
489 | } | ||
490 | |||
491 | return 0; | ||
492 | } | ||
493 | |||
494 | /* called only from apply */ | ||
495 | static void set_enabled(struct drm_crtc *crtc, bool enable) | ||
496 | { | ||
497 | struct drm_device *dev = crtc->dev; | ||
498 | struct omap_crtc *omap_crtc = to_omap_crtc(crtc); | ||
499 | enum omap_channel channel = omap_crtc->channel; | ||
500 | struct omap_irq_wait *wait = NULL; | ||
501 | |||
502 | if (dispc_mgr_is_enabled(channel) == enable) | ||
503 | return; | ||
504 | |||
505 | /* ignore sync-lost irqs during enable/disable */ | ||
506 | omap_irq_unregister(crtc->dev, &omap_crtc->error_irq); | ||
507 | |||
508 | if (dispc_mgr_get_framedone_irq(channel)) { | ||
509 | if (!enable) { | ||
510 | wait = omap_irq_wait_init(dev, | ||
511 | dispc_mgr_get_framedone_irq(channel), 1); | ||
512 | } | ||
513 | } else { | ||
514 | /* | ||
515 | * When we disable digit output, we need to wait until fields | ||
516 | * are done. Otherwise the DSS is still working, and turning | ||
517 | * off the clocks prevents DSS from going to OFF mode. And when | ||
518 | * enabling, we need to wait for the extra sync losts | ||
519 | */ | ||
520 | wait = omap_irq_wait_init(dev, | ||
521 | dispc_mgr_get_vsync_irq(channel), 2); | ||
522 | } | ||
523 | |||
524 | dispc_mgr_enable(channel, enable); | ||
525 | |||
526 | if (wait) { | ||
527 | int ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100)); | ||
528 | if (ret) { | ||
529 | dev_err(dev->dev, "%s: timeout waiting for %s\n", | ||
530 | omap_crtc->name, enable ? "enable" : "disable"); | ||
531 | } | ||
532 | } | ||
533 | |||
534 | omap_irq_register(crtc->dev, &omap_crtc->error_irq); | ||
535 | } | ||
536 | |||
537 | static void omap_crtc_pre_apply(struct omap_drm_apply *apply) | ||
538 | { | ||
539 | struct omap_crtc *omap_crtc = | ||
540 | container_of(apply, struct omap_crtc, apply); | ||
541 | struct drm_crtc *crtc = &omap_crtc->base; | ||
542 | struct drm_encoder *encoder = NULL; | ||
543 | |||
544 | DBG("%s: enabled=%d, full=%d", omap_crtc->name, | ||
545 | omap_crtc->enabled, omap_crtc->full_update); | ||
546 | |||
547 | if (omap_crtc->full_update) { | ||
548 | struct omap_drm_private *priv = crtc->dev->dev_private; | ||
549 | int i; | ||
550 | for (i = 0; i < priv->num_encoders; i++) { | ||
551 | if (priv->encoders[i]->crtc == crtc) { | ||
552 | encoder = priv->encoders[i]; | ||
553 | break; | ||
554 | } | ||
555 | } | ||
556 | } | ||
557 | |||
558 | if (!omap_crtc->enabled) { | ||
559 | set_enabled(&omap_crtc->base, false); | ||
560 | if (encoder) | ||
561 | omap_encoder_set_enabled(encoder, false); | ||
562 | } else { | ||
563 | if (encoder) { | ||
564 | omap_encoder_set_enabled(encoder, false); | ||
565 | omap_encoder_update(encoder, &omap_crtc->mgr, | ||
566 | &omap_crtc->timings); | ||
567 | omap_encoder_set_enabled(encoder, true); | ||
568 | omap_crtc->full_update = false; | ||
569 | } | ||
570 | |||
571 | dispc_mgr_setup(omap_crtc->channel, &omap_crtc->info); | ||
572 | dispc_mgr_set_timings(omap_crtc->channel, | ||
573 | &omap_crtc->timings); | ||
574 | set_enabled(&omap_crtc->base, true); | ||
575 | } | ||
576 | |||
577 | omap_crtc->full_update = false; | ||
578 | } | ||
579 | |||
580 | static void omap_crtc_post_apply(struct omap_drm_apply *apply) | ||
581 | { | ||
582 | /* nothing needed for post-apply */ | ||
583 | } | ||
584 | |||
585 | static const char *channel_names[] = { | ||
586 | [OMAP_DSS_CHANNEL_LCD] = "lcd", | ||
587 | [OMAP_DSS_CHANNEL_DIGIT] = "tv", | ||
588 | [OMAP_DSS_CHANNEL_LCD2] = "lcd2", | ||
589 | }; | ||
590 | |||
591 | /* initialize crtc */ | ||
592 | struct drm_crtc *omap_crtc_init(struct drm_device *dev, | ||
593 | struct drm_plane *plane, enum omap_channel channel, int id) | ||
594 | { | ||
595 | struct drm_crtc *crtc = NULL; | ||
596 | struct omap_crtc *omap_crtc; | ||
597 | struct omap_overlay_manager_info *info; | ||
598 | |||
599 | DBG("%s", channel_names[channel]); | ||
600 | |||
601 | omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); | ||
602 | if (!omap_crtc) | ||
603 | goto fail; | ||
604 | |||
605 | crtc = &omap_crtc->base; | ||
606 | |||
607 | INIT_WORK(&omap_crtc->page_flip_work, page_flip_worker); | ||
608 | INIT_WORK(&omap_crtc->apply_work, apply_worker); | ||
609 | |||
610 | INIT_LIST_HEAD(&omap_crtc->pending_applies); | ||
611 | INIT_LIST_HEAD(&omap_crtc->queued_applies); | ||
612 | |||
613 | omap_crtc->apply.pre_apply = omap_crtc_pre_apply; | ||
614 | omap_crtc->apply.post_apply = omap_crtc_post_apply; | ||
615 | |||
616 | omap_crtc->apply_irq.irqmask = pipe2vbl(id); | ||
617 | omap_crtc->apply_irq.irq = omap_crtc_apply_irq; | ||
618 | |||
619 | omap_crtc->error_irq.irqmask = | ||
620 | dispc_mgr_get_sync_lost_irq(channel); | ||
621 | omap_crtc->error_irq.irq = omap_crtc_error_irq; | ||
622 | omap_irq_register(dev, &omap_crtc->error_irq); | ||
623 | |||
624 | omap_crtc->channel = channel; | ||
625 | omap_crtc->plane = plane; | ||
626 | omap_crtc->plane->crtc = crtc; | ||
627 | omap_crtc->name = channel_names[channel]; | ||
628 | omap_crtc->pipe = id; | ||
629 | |||
630 | /* temporary: */ | ||
631 | omap_crtc->mgr.id = channel; | ||
632 | |||
633 | dss_install_mgr_ops(&mgr_ops); | ||
634 | |||
635 | /* TODO: fix hard-coded setup.. add properties! */ | ||
636 | info = &omap_crtc->info; | ||
637 | info->default_color = 0x00000000; | ||
638 | info->trans_key = 0x00000000; | ||
639 | info->trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | ||
640 | info->trans_enabled = false; | ||
641 | |||
642 | drm_crtc_init(dev, crtc, &omap_crtc_funcs); | ||
643 | drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs); | ||
644 | |||
645 | omap_plane_install_properties(omap_crtc->plane, &crtc->base); | ||
646 | |||
647 | return crtc; | ||
648 | |||
649 | fail: | ||
650 | if (crtc) | ||
651 | omap_crtc_destroy(crtc); | ||
652 | |||
653 | return NULL; | ||
654 | } | ||