blob: 430bf64521f04b5af32c1e1436c03d662ae6282c [file] [log] [blame]
Rob Clarkcd5351f2011-11-12 12:09:40 -06001/*
Rob Clark8bb0daf2013-02-11 12:43:09 -05002 * drivers/gpu/drm/omapdrm/omap_crtc.c
Rob Clarkcd5351f2011-11-12 12:09:40 -06003 *
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
Laurent Pincharta42133a2015-01-17 19:09:26 +020020#include <linux/completion.h>
21
Laurent Pinchart69a12262015-03-05 21:38:16 +020022#include <drm/drm_atomic.h>
23#include <drm/drm_atomic_helper.h>
Laurent Pinchart2d278f52015-03-05 21:31:37 +020024#include <drm/drm_crtc.h>
25#include <drm/drm_crtc_helper.h>
Andy Grossb9ed9f02012-10-16 00:17:40 -050026#include <drm/drm_mode.h>
Daniel Vetter3cb9ae42014-10-29 10:03:57 +010027#include <drm/drm_plane_helper.h>
Laurent Pinchart2d278f52015-03-05 21:31:37 +020028
29#include "omap_drv.h"
Rob Clarkcd5351f2011-11-12 12:09:40 -060030
31#define to_omap_crtc(x) container_of(x, struct omap_crtc, base)
32
33struct omap_crtc {
34 struct drm_crtc base;
Rob Clarkf5f94542012-12-04 13:59:12 -060035
Rob Clarkbb5c2d92012-01-16 12:51:16 -060036 const char *name;
Rob Clarkf5f94542012-12-04 13:59:12 -060037 enum omap_channel channel;
Tomi Valkeinenc7aef122014-04-03 16:30:03 +030038 struct drm_encoder *current_encoder;
Rob Clarkf5f94542012-12-04 13:59:12 -060039
40 /*
41 * Temporary: eventually this will go away, but it is needed
42 * for now to keep the output's happy. (They only need
43 * mgr->id.) Eventually this will be replaced w/ something
44 * more common-panel-framework-y
45 */
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +030046 struct omap_overlay_manager *mgr;
Rob Clarkf5f94542012-12-04 13:59:12 -060047
48 struct omap_video_timings timings;
49 bool enabled;
Rob Clarkf5f94542012-12-04 13:59:12 -060050
Laurent Pincharta42133a2015-01-17 19:09:26 +020051 struct omap_drm_irq vblank_irq;
Rob Clarkf5f94542012-12-04 13:59:12 -060052 struct omap_drm_irq error_irq;
53
Laurent Pinchartfa16d262015-03-06 16:01:53 +020054 /* pending event */
55 struct drm_pending_vblank_event *event;
Laurent Pinchartc397cfd2015-01-25 22:42:30 +020056 wait_queue_head_t flip_wait;
Rob Clarkf5f94542012-12-04 13:59:12 -060057
Laurent Pincharta42133a2015-01-17 19:09:26 +020058 struct completion completion;
59
Tomi Valkeinena36af732015-02-26 15:20:24 +020060 bool ignore_digit_sync_lost;
Rob Clarkcd5351f2011-11-12 12:09:40 -060061};
62
Laurent Pinchart971fb3e2015-01-18 01:12:59 +020063/* -----------------------------------------------------------------------------
64 * Helper Functions
65 */
66
Archit Taneja0d8f3712013-03-26 19:15:19 +053067uint32_t pipe2vbl(struct drm_crtc *crtc)
68{
69 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
70
71 return dispc_mgr_get_vsync_irq(omap_crtc->channel);
72}
73
Laurent Pinchart971fb3e2015-01-18 01:12:59 +020074const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc)
75{
76 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
77 return &omap_crtc->timings;
78}
79
80enum omap_channel omap_crtc_channel(struct drm_crtc *crtc)
81{
82 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
83 return omap_crtc->channel;
84}
85
86/* -----------------------------------------------------------------------------
87 * DSS Manager Functions
88 */
89
Rob Clarkf5f94542012-12-04 13:59:12 -060090/*
91 * Manager-ops, callbacks from output when they need to configure
92 * the upstream part of the video pipe.
93 *
94 * Most of these we can ignore until we add support for command-mode
95 * panels.. for video-mode the crtc-helpers already do an adequate
96 * job of sequencing the setup of the video pipe in the proper order
97 */
98
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +030099/* ovl-mgr-id -> crtc */
100static struct omap_crtc *omap_crtcs[8];
101
Rob Clarkf5f94542012-12-04 13:59:12 -0600102/* we can probably ignore these until we support command-mode panels: */
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200103static int omap_crtc_dss_connect(struct omap_overlay_manager *mgr,
Tomi Valkeinen1f68d9c2013-04-19 15:09:34 +0300104 struct omap_dss_device *dst)
Tomi Valkeinena7e71e72013-05-08 16:23:32 +0300105{
106 if (mgr->output)
107 return -EINVAL;
108
109 if ((mgr->supported_outputs & dst->id) == 0)
110 return -EINVAL;
111
112 dst->manager = mgr;
113 mgr->output = dst;
114
115 return 0;
116}
117
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200118static void omap_crtc_dss_disconnect(struct omap_overlay_manager *mgr,
Tomi Valkeinen1f68d9c2013-04-19 15:09:34 +0300119 struct omap_dss_device *dst)
Tomi Valkeinena7e71e72013-05-08 16:23:32 +0300120{
121 mgr->output->manager = NULL;
122 mgr->output = NULL;
123}
124
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200125static void omap_crtc_dss_start_update(struct omap_overlay_manager *mgr)
Rob Clarkf5f94542012-12-04 13:59:12 -0600126{
127}
128
Laurent Pincharta42133a2015-01-17 19:09:26 +0200129/* Called only from omap_crtc_setup and suspend/resume handlers. */
Laurent Pinchart8472b572015-01-15 00:45:17 +0200130static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
131{
132 struct drm_device *dev = crtc->dev;
133 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
134 enum omap_channel channel = omap_crtc->channel;
135 struct omap_irq_wait *wait;
136 u32 framedone_irq, vsync_irq;
137 int ret;
138
139 if (dispc_mgr_is_enabled(channel) == enable)
140 return;
141
Tomi Valkeinenef422282015-02-26 15:20:25 +0200142 if (omap_crtc->channel == OMAP_DSS_CHANNEL_DIGIT) {
143 /*
144 * Digit output produces some sync lost interrupts during the
145 * first frame when enabling, so we need to ignore those.
146 */
147 omap_crtc->ignore_digit_sync_lost = true;
148 }
Laurent Pinchart8472b572015-01-15 00:45:17 +0200149
150 framedone_irq = dispc_mgr_get_framedone_irq(channel);
151 vsync_irq = dispc_mgr_get_vsync_irq(channel);
152
153 if (enable) {
154 wait = omap_irq_wait_init(dev, vsync_irq, 1);
155 } else {
156 /*
157 * When we disable the digit output, we need to wait for
158 * FRAMEDONE to know that DISPC has finished with the output.
159 *
160 * OMAP2/3 does not have FRAMEDONE irq for digit output, and in
161 * that case we need to use vsync interrupt, and wait for both
162 * even and odd frames.
163 */
164
165 if (framedone_irq)
166 wait = omap_irq_wait_init(dev, framedone_irq, 1);
167 else
168 wait = omap_irq_wait_init(dev, vsync_irq, 2);
169 }
170
171 dispc_mgr_enable(channel, enable);
172
173 ret = omap_irq_wait(dev, wait, msecs_to_jiffies(100));
174 if (ret) {
175 dev_err(dev->dev, "%s: timeout waiting for %s\n",
176 omap_crtc->name, enable ? "enable" : "disable");
177 }
178
Tomi Valkeinenef422282015-02-26 15:20:25 +0200179 if (omap_crtc->channel == OMAP_DSS_CHANNEL_DIGIT) {
180 omap_crtc->ignore_digit_sync_lost = false;
181 /* make sure the irq handler sees the value above */
182 mb();
183 }
Laurent Pinchart8472b572015-01-15 00:45:17 +0200184}
185
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300186
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200187static int omap_crtc_dss_enable(struct omap_overlay_manager *mgr)
Rob Clarkf5f94542012-12-04 13:59:12 -0600188{
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300189 struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
Laurent Pinchartdee82602015-03-06 19:00:18 +0200190 struct omap_overlay_manager_info info;
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300191
Laurent Pinchartdee82602015-03-06 19:00:18 +0200192 memset(&info, 0, sizeof(info));
193 info.default_color = 0x00000000;
194 info.trans_key = 0x00000000;
195 info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
196 info.trans_enabled = false;
197
198 dispc_mgr_setup(omap_crtc->channel, &info);
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300199 dispc_mgr_set_timings(omap_crtc->channel,
200 &omap_crtc->timings);
Laurent Pinchart8472b572015-01-15 00:45:17 +0200201 omap_crtc_set_enabled(&omap_crtc->base, true);
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300202
Rob Clarkf5f94542012-12-04 13:59:12 -0600203 return 0;
204}
205
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200206static void omap_crtc_dss_disable(struct omap_overlay_manager *mgr)
Rob Clarkf5f94542012-12-04 13:59:12 -0600207{
Tomi Valkeinen506096a2014-04-03 13:11:54 +0300208 struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
209
Laurent Pinchart8472b572015-01-15 00:45:17 +0200210 omap_crtc_set_enabled(&omap_crtc->base, false);
Rob Clarkf5f94542012-12-04 13:59:12 -0600211}
212
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200213static void omap_crtc_dss_set_timings(struct omap_overlay_manager *mgr,
Rob Clarkf5f94542012-12-04 13:59:12 -0600214 const struct omap_video_timings *timings)
215{
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +0300216 struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
Rob Clarkf5f94542012-12-04 13:59:12 -0600217 DBG("%s", omap_crtc->name);
218 omap_crtc->timings = *timings;
Rob Clarkf5f94542012-12-04 13:59:12 -0600219}
220
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200221static void omap_crtc_dss_set_lcd_config(struct omap_overlay_manager *mgr,
Rob Clarkf5f94542012-12-04 13:59:12 -0600222 const struct dss_lcd_mgr_config *config)
223{
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +0300224 struct omap_crtc *omap_crtc = omap_crtcs[mgr->id];
Rob Clarkf5f94542012-12-04 13:59:12 -0600225 DBG("%s", omap_crtc->name);
226 dispc_mgr_set_lcd_config(omap_crtc->channel, config);
227}
228
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200229static int omap_crtc_dss_register_framedone(
Rob Clarkf5f94542012-12-04 13:59:12 -0600230 struct omap_overlay_manager *mgr,
231 void (*handler)(void *), void *data)
232{
233 return 0;
234}
235
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200236static void omap_crtc_dss_unregister_framedone(
Rob Clarkf5f94542012-12-04 13:59:12 -0600237 struct omap_overlay_manager *mgr,
238 void (*handler)(void *), void *data)
239{
240}
241
242static const struct dss_mgr_ops mgr_ops = {
Laurent Pinchart4343f0f2015-03-05 22:01:02 +0200243 .connect = omap_crtc_dss_connect,
244 .disconnect = omap_crtc_dss_disconnect,
245 .start_update = omap_crtc_dss_start_update,
246 .enable = omap_crtc_dss_enable,
247 .disable = omap_crtc_dss_disable,
248 .set_timings = omap_crtc_dss_set_timings,
249 .set_lcd_config = omap_crtc_dss_set_lcd_config,
250 .register_framedone_handler = omap_crtc_dss_register_framedone,
251 .unregister_framedone_handler = omap_crtc_dss_unregister_framedone,
Rob Clarkf5f94542012-12-04 13:59:12 -0600252};
253
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200254/* -----------------------------------------------------------------------------
Laurent Pinchart1d5e5ea2015-01-18 16:57:36 +0200255 * Setup, Flush and Page Flip
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200256 */
257
Laurent Pinchart1d5e5ea2015-01-18 16:57:36 +0200258void omap_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file)
259{
260 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200261 struct drm_pending_vblank_event *event;
Laurent Pinchart1d5e5ea2015-01-18 16:57:36 +0200262 struct drm_device *dev = crtc->dev;
263 unsigned long flags;
264
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200265 /* Destroy the pending vertical blanking event associated with the
266 * pending page flip, if any, and disable vertical blanking interrupts.
267 */
268
Laurent Pinchart1d5e5ea2015-01-18 16:57:36 +0200269 spin_lock_irqsave(&dev->event_lock, flags);
270
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200271 event = omap_crtc->event;
272 omap_crtc->event = NULL;
273
274 if (event && event->base.file_priv == file) {
275 event->base.destroy(&event->base);
276 drm_crtc_vblank_put(crtc);
Laurent Pinchart1d5e5ea2015-01-18 16:57:36 +0200277 }
278
279 spin_unlock_irqrestore(&dev->event_lock, flags);
280}
281
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200282static void omap_crtc_complete_page_flip(struct drm_crtc *crtc)
Laurent Pinchart15d02e92015-01-25 22:42:30 +0200283{
284 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200285 struct drm_pending_vblank_event *event;
Laurent Pinchart15d02e92015-01-25 22:42:30 +0200286 struct drm_device *dev = crtc->dev;
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200287 unsigned long flags;
Laurent Pinchart15d02e92015-01-25 22:42:30 +0200288
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200289 spin_lock_irqsave(&dev->event_lock, flags);
290
291 event = omap_crtc->event;
292 omap_crtc->event = NULL;
293
294 if (event) {
295 drm_crtc_send_vblank_event(crtc, event);
296 wake_up(&omap_crtc->flip_wait);
297 drm_crtc_vblank_put(crtc);
Laurent Pinchart15d02e92015-01-25 22:42:30 +0200298 }
299
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200300 spin_unlock_irqrestore(&dev->event_lock, flags);
Laurent Pinchartc397cfd2015-01-25 22:42:30 +0200301}
302
303static bool omap_crtc_page_flip_pending(struct drm_crtc *crtc)
304{
305 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
306 struct drm_device *dev = crtc->dev;
307 unsigned long flags;
308 bool pending;
309
310 spin_lock_irqsave(&dev->event_lock, flags);
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200311 pending = omap_crtc->event != NULL;
Laurent Pinchartc397cfd2015-01-25 22:42:30 +0200312 spin_unlock_irqrestore(&dev->event_lock, flags);
313
314 return pending;
315}
316
317static void omap_crtc_wait_page_flip(struct drm_crtc *crtc)
318{
319 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pinchartc397cfd2015-01-25 22:42:30 +0200320
321 if (wait_event_timeout(omap_crtc->flip_wait,
322 !omap_crtc_page_flip_pending(crtc),
323 msecs_to_jiffies(50)))
324 return;
325
326 dev_warn(crtc->dev->dev, "page flip timeout!\n");
327
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200328 omap_crtc_complete_page_flip(crtc);
Laurent Pinchart15d02e92015-01-25 22:42:30 +0200329}
330
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200331static void omap_crtc_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
332{
333 struct omap_crtc *omap_crtc =
334 container_of(irq, struct omap_crtc, error_irq);
Tomi Valkeinena36af732015-02-26 15:20:24 +0200335
336 if (omap_crtc->ignore_digit_sync_lost) {
337 irqstatus &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
338 if (!irqstatus)
339 return;
340 }
341
Tomi Valkeinen3b143fc2014-11-19 12:50:13 +0200342 DRM_ERROR_RATELIMITED("%s: errors: %08x\n", omap_crtc->name, irqstatus);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200343}
344
Laurent Pincharta42133a2015-01-17 19:09:26 +0200345static void omap_crtc_vblank_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200346{
347 struct omap_crtc *omap_crtc =
Laurent Pincharta42133a2015-01-17 19:09:26 +0200348 container_of(irq, struct omap_crtc, vblank_irq);
349 struct drm_device *dev = omap_crtc->base.dev;
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200350
Laurent Pincharta42133a2015-01-17 19:09:26 +0200351 if (dispc_mgr_go_busy(omap_crtc->channel))
352 return;
353
354 DBG("%s: apply done", omap_crtc->name);
355 __omap_irq_unregister(dev, &omap_crtc->vblank_irq);
356
Laurent Pincharta42133a2015-01-17 19:09:26 +0200357 /* wakeup userspace */
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200358 omap_crtc_complete_page_flip(&omap_crtc->base);
Laurent Pincharta42133a2015-01-17 19:09:26 +0200359
360 complete(&omap_crtc->completion);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200361}
362
Laurent Pincharta42133a2015-01-17 19:09:26 +0200363int omap_crtc_flush(struct drm_crtc *crtc)
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200364{
365 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pincharta42133a2015-01-17 19:09:26 +0200366
367 DBG("%s: GO", omap_crtc->name);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200368
369 WARN_ON(!drm_modeset_is_locked(&crtc->mutex));
Laurent Pincharta42133a2015-01-17 19:09:26 +0200370 WARN_ON(omap_crtc->vblank_irq.registered);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200371
Laurent Pincharta42133a2015-01-17 19:09:26 +0200372 dispc_runtime_get();
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200373
Laurent Pincharta42133a2015-01-17 19:09:26 +0200374 if (dispc_mgr_is_enabled(omap_crtc->channel)) {
375 dispc_mgr_go(omap_crtc->channel);
376 omap_irq_register(crtc->dev, &omap_crtc->vblank_irq);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200377
Laurent Pincharta42133a2015-01-17 19:09:26 +0200378 WARN_ON(!wait_for_completion_timeout(&omap_crtc->completion,
379 msecs_to_jiffies(100)));
380 reinit_completion(&omap_crtc->completion);
381 }
382
383 dispc_runtime_put();
384
Laurent Pincharta42133a2015-01-17 19:09:26 +0200385 return 0;
386}
387
388static void omap_crtc_setup(struct drm_crtc *crtc)
389{
390 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200391 struct omap_drm_private *priv = crtc->dev->dev_private;
392 struct drm_encoder *encoder = NULL;
393 unsigned int i;
394
395 DBG("%s: enabled=%d", omap_crtc->name, omap_crtc->enabled);
396
Laurent Pincharta42133a2015-01-17 19:09:26 +0200397 dispc_runtime_get();
398
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200399 for (i = 0; i < priv->num_encoders; i++) {
400 if (priv->encoders[i]->crtc == crtc) {
401 encoder = priv->encoders[i];
402 break;
403 }
404 }
405
406 if (omap_crtc->current_encoder && encoder != omap_crtc->current_encoder)
407 omap_encoder_set_enabled(omap_crtc->current_encoder, false);
408
409 omap_crtc->current_encoder = encoder;
410
411 if (!omap_crtc->enabled) {
412 if (encoder)
413 omap_encoder_set_enabled(encoder, false);
414 } else {
415 if (encoder) {
416 omap_encoder_set_enabled(encoder, false);
417 omap_encoder_update(encoder, omap_crtc->mgr,
418 &omap_crtc->timings);
419 omap_encoder_set_enabled(encoder, true);
420 }
421 }
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200422
Laurent Pincharta42133a2015-01-17 19:09:26 +0200423 dispc_runtime_put();
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200424}
425
426/* -----------------------------------------------------------------------------
427 * CRTC Functions
Rob Clarkf5f94542012-12-04 13:59:12 -0600428 */
429
Rob Clarkcd5351f2011-11-12 12:09:40 -0600430static void omap_crtc_destroy(struct drm_crtc *crtc)
431{
432 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Rob Clarkf5f94542012-12-04 13:59:12 -0600433
434 DBG("%s", omap_crtc->name);
435
Laurent Pincharta42133a2015-01-17 19:09:26 +0200436 WARN_ON(omap_crtc->vblank_irq.registered);
Rob Clarkf5f94542012-12-04 13:59:12 -0600437 omap_irq_unregister(crtc->dev, &omap_crtc->error_irq);
438
Rob Clarkcd5351f2011-11-12 12:09:40 -0600439 drm_crtc_cleanup(crtc);
Rob Clarkf5f94542012-12-04 13:59:12 -0600440
Rob Clarkcd5351f2011-11-12 12:09:40 -0600441 kfree(omap_crtc);
442}
443
Rob Clarkcd5351f2011-11-12 12:09:40 -0600444static bool omap_crtc_mode_fixup(struct drm_crtc *crtc,
Laurent Pincharte811f5a2012-07-17 17:56:50 +0200445 const struct drm_display_mode *mode,
Rob Clarkbb5c2d92012-01-16 12:51:16 -0600446 struct drm_display_mode *adjusted_mode)
Rob Clarkcd5351f2011-11-12 12:09:40 -0600447{
Rob Clarkcd5351f2011-11-12 12:09:40 -0600448 return true;
449}
450
Laurent Pinchartf1d57fb2015-03-05 22:13:22 +0200451static void omap_crtc_enable(struct drm_crtc *crtc)
452{
453 struct omap_drm_private *priv = crtc->dev->dev_private;
454 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
455 unsigned int i;
456
457 DBG("%s", omap_crtc->name);
458
459 if (omap_crtc->enabled)
460 return;
461
462 /* Enable all planes associated with the CRTC. */
463 for (i = 0; i < priv->num_planes; i++) {
464 struct drm_plane *plane = priv->planes[i];
465
466 if (plane->crtc == crtc)
467 WARN_ON(omap_plane_set_enable(plane, true));
468 }
469
470 omap_crtc->enabled = true;
471
472 omap_crtc_setup(crtc);
473 omap_crtc_flush(crtc);
474
475 dispc_runtime_get();
476 drm_crtc_vblank_on(crtc);
477 dispc_runtime_put();
478}
479
480static void omap_crtc_disable(struct drm_crtc *crtc)
481{
482 struct omap_drm_private *priv = crtc->dev->dev_private;
483 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
484 unsigned int i;
485
486 DBG("%s", omap_crtc->name);
487
488 if (!omap_crtc->enabled)
489 return;
490
491 omap_crtc_wait_page_flip(crtc);
492 dispc_runtime_get();
493 drm_crtc_vblank_off(crtc);
494 dispc_runtime_put();
495
496 /* Disable all planes associated with the CRTC. */
497 for (i = 0; i < priv->num_planes; i++) {
498 struct drm_plane *plane = priv->planes[i];
499
500 if (plane->crtc == crtc)
501 WARN_ON(omap_plane_set_enable(plane, false));
502 }
503
504 omap_crtc->enabled = false;
505
506 omap_crtc_setup(crtc);
507 omap_crtc_flush(crtc);
508}
509
Laurent Pinchartf7a73b62015-03-05 13:45:14 +0200510static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
Rob Clarkcd5351f2011-11-12 12:09:40 -0600511{
512 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
Laurent Pinchartf7a73b62015-03-05 13:45:14 +0200513 struct drm_display_mode *mode = &crtc->state->adjusted_mode;
Rob Clarkf5f94542012-12-04 13:59:12 -0600514
515 DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
Laurent Pinchartf7a73b62015-03-05 13:45:14 +0200516 omap_crtc->name, mode->base.id, mode->name,
517 mode->vrefresh, mode->clock,
518 mode->hdisplay, mode->hsync_start, mode->hsync_end, mode->htotal,
519 mode->vdisplay, mode->vsync_start, mode->vsync_end, mode->vtotal,
520 mode->type, mode->flags);
Rob Clarkf5f94542012-12-04 13:59:12 -0600521
522 copy_timings_drm_to_omap(&omap_crtc->timings, mode);
Rob Clarkcd5351f2011-11-12 12:09:40 -0600523}
524
Laurent Pinchartde8e4102015-03-05 13:39:56 +0200525static void omap_crtc_atomic_begin(struct drm_crtc *crtc)
526{
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200527 struct drm_pending_vblank_event *event = crtc->state->event;
528 struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
529 struct drm_device *dev = crtc->dev;
530 unsigned long flags;
531
Laurent Pinchartde8e4102015-03-05 13:39:56 +0200532 dispc_runtime_get();
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200533
534 if (event) {
535 WARN_ON(omap_crtc->event);
536 WARN_ON(drm_crtc_vblank_get(crtc) != 0);
537
538 spin_lock_irqsave(&dev->event_lock, flags);
539 omap_crtc->event = event;
540 spin_unlock_irqrestore(&dev->event_lock, flags);
541 }
Laurent Pinchartde8e4102015-03-05 13:39:56 +0200542}
543
544static void omap_crtc_atomic_flush(struct drm_crtc *crtc)
545{
546 omap_crtc_flush(crtc);
547
548 dispc_runtime_put();
Laurent Pinchartafc34932015-03-06 18:35:16 +0200549
550 crtc->invert_dimensions = !!(crtc->primary->state->rotation &
551 (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270)));
Laurent Pinchartde8e4102015-03-05 13:39:56 +0200552}
553
Laurent Pinchartafc34932015-03-06 18:35:16 +0200554static int omap_crtc_atomic_set_property(struct drm_crtc *crtc,
555 struct drm_crtc_state *state,
556 struct drm_property *property,
557 uint64_t val)
Rob Clark3c810c62012-08-15 15:18:01 -0500558{
Laurent Pinchartafc34932015-03-06 18:35:16 +0200559 struct drm_plane_state *plane_state;
560 struct drm_plane *plane = crtc->primary;
Rob Clark1e0fdfc2012-09-04 11:36:20 -0500561
Laurent Pinchartafc34932015-03-06 18:35:16 +0200562 /*
563 * Delegate property set to the primary plane. Get the plane state and
564 * set the property directly.
565 */
566
567 plane_state = drm_atomic_get_plane_state(state->state, plane);
568 if (!plane_state)
569 return -EINVAL;
570
571 return drm_atomic_plane_set_property(plane, plane_state, property, val);
572}
573
574static int omap_crtc_atomic_get_property(struct drm_crtc *crtc,
575 const struct drm_crtc_state *state,
576 struct drm_property *property,
577 uint64_t *val)
578{
579 /*
580 * Delegate property get to the primary plane. The
581 * drm_atomic_plane_get_property() function isn't exported, but can be
582 * called through drm_object_property_get_value() as that will call
583 * drm_atomic_get_property() for atomic drivers.
584 */
585 return drm_object_property_get_value(&crtc->primary->base, property,
586 val);
Rob Clark3c810c62012-08-15 15:18:01 -0500587}
588
Rob Clarkcd5351f2011-11-12 12:09:40 -0600589static const struct drm_crtc_funcs omap_crtc_funcs = {
Laurent Pinchart69a12262015-03-05 21:38:16 +0200590 .reset = drm_atomic_helper_crtc_reset,
Laurent Pinchart9416c9d2015-03-05 21:54:54 +0200591 .set_config = drm_atomic_helper_set_config,
Rob Clarkcd5351f2011-11-12 12:09:40 -0600592 .destroy = omap_crtc_destroy,
Laurent Pinchartfa16d262015-03-06 16:01:53 +0200593 .page_flip = drm_atomic_helper_page_flip,
Laurent Pinchartafc34932015-03-06 18:35:16 +0200594 .set_property = drm_atomic_helper_crtc_set_property,
Laurent Pinchart69a12262015-03-05 21:38:16 +0200595 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
596 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
Laurent Pinchartafc34932015-03-06 18:35:16 +0200597 .atomic_set_property = omap_crtc_atomic_set_property,
598 .atomic_get_property = omap_crtc_atomic_get_property,
Rob Clarkcd5351f2011-11-12 12:09:40 -0600599};
600
601static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = {
Rob Clarkcd5351f2011-11-12 12:09:40 -0600602 .mode_fixup = omap_crtc_mode_fixup,
Laurent Pinchartf7a73b62015-03-05 13:45:14 +0200603 .mode_set_nofb = omap_crtc_mode_set_nofb,
Laurent Pinchartf1d57fb2015-03-05 22:13:22 +0200604 .disable = omap_crtc_disable,
605 .enable = omap_crtc_enable,
Laurent Pinchartde8e4102015-03-05 13:39:56 +0200606 .atomic_begin = omap_crtc_atomic_begin,
607 .atomic_flush = omap_crtc_atomic_flush,
Rob Clarkcd5351f2011-11-12 12:09:40 -0600608};
609
Laurent Pinchart971fb3e2015-01-18 01:12:59 +0200610/* -----------------------------------------------------------------------------
611 * Init and Cleanup
612 */
Tomi Valkeinene2f8fd72014-04-02 14:31:57 +0300613
Rob Clarkf5f94542012-12-04 13:59:12 -0600614static const char *channel_names[] = {
Laurent Pinchart222025e2015-01-11 00:02:07 +0200615 [OMAP_DSS_CHANNEL_LCD] = "lcd",
616 [OMAP_DSS_CHANNEL_DIGIT] = "tv",
617 [OMAP_DSS_CHANNEL_LCD2] = "lcd2",
618 [OMAP_DSS_CHANNEL_LCD3] = "lcd3",
Rob Clarkf5f94542012-12-04 13:59:12 -0600619};
620
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +0300621void omap_crtc_pre_init(void)
622{
623 dss_install_mgr_ops(&mgr_ops);
624}
625
Archit Taneja3a01ab22014-01-02 14:49:51 +0530626void omap_crtc_pre_uninit(void)
627{
628 dss_uninstall_mgr_ops();
629}
630
Rob Clarkcd5351f2011-11-12 12:09:40 -0600631/* initialize crtc */
632struct drm_crtc *omap_crtc_init(struct drm_device *dev,
Rob Clarkf5f94542012-12-04 13:59:12 -0600633 struct drm_plane *plane, enum omap_channel channel, int id)
Rob Clarkcd5351f2011-11-12 12:09:40 -0600634{
635 struct drm_crtc *crtc = NULL;
Rob Clarkf5f94542012-12-04 13:59:12 -0600636 struct omap_crtc *omap_crtc;
Laurent Pinchartef6b0e02015-01-11 00:11:18 +0200637 int ret;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600638
Rob Clarkf5f94542012-12-04 13:59:12 -0600639 DBG("%s", channel_names[channel]);
640
641 omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL);
Joe Perches78110bb2013-02-11 09:41:29 -0800642 if (!omap_crtc)
Laurent Pinchartef6b0e02015-01-11 00:11:18 +0200643 return NULL;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600644
Rob Clarkcd5351f2011-11-12 12:09:40 -0600645 crtc = &omap_crtc->base;
Rob Clarkbb5c2d92012-01-16 12:51:16 -0600646
Laurent Pinchartc397cfd2015-01-25 22:42:30 +0200647 init_waitqueue_head(&omap_crtc->flip_wait);
Laurent Pincharta42133a2015-01-17 19:09:26 +0200648 init_completion(&omap_crtc->completion);
Rob Clarkf5f94542012-12-04 13:59:12 -0600649
Archit Taneja0d8f3712013-03-26 19:15:19 +0530650 omap_crtc->channel = channel;
Archit Taneja0d8f3712013-03-26 19:15:19 +0530651 omap_crtc->name = channel_names[channel];
Archit Taneja0d8f3712013-03-26 19:15:19 +0530652
Laurent Pincharta42133a2015-01-17 19:09:26 +0200653 omap_crtc->vblank_irq.irqmask = pipe2vbl(crtc);
654 omap_crtc->vblank_irq.irq = omap_crtc_vblank_irq;
Rob Clarkf5f94542012-12-04 13:59:12 -0600655
656 omap_crtc->error_irq.irqmask =
657 dispc_mgr_get_sync_lost_irq(channel);
658 omap_crtc->error_irq.irq = omap_crtc_error_irq;
659 omap_irq_register(dev, &omap_crtc->error_irq);
660
Rob Clarkf5f94542012-12-04 13:59:12 -0600661 /* temporary: */
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +0300662 omap_crtc->mgr = omap_dss_get_overlay_manager(channel);
Rob Clarkf5f94542012-12-04 13:59:12 -0600663
Laurent Pinchartef6b0e02015-01-11 00:11:18 +0200664 ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
665 &omap_crtc_funcs);
666 if (ret < 0) {
667 kfree(omap_crtc);
668 return NULL;
669 }
670
Rob Clarkcd5351f2011-11-12 12:09:40 -0600671 drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs);
672
Laurent Pinchartef6b0e02015-01-11 00:11:18 +0200673 omap_plane_install_properties(crtc->primary, &crtc->base);
Rob Clark3c810c62012-08-15 15:18:01 -0500674
Tomi Valkeinen04b1fc02013-05-14 10:55:19 +0300675 omap_crtcs[channel] = omap_crtc;
676
Rob Clarkcd5351f2011-11-12 12:09:40 -0600677 return crtc;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600678}