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1/*
2 * drivers/staging/omapdrm/omap_drv.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_crtc_helper.h"
23#include "drm_fb_helper.h"
24#include "omap_dmm_tiler.h"
25
26#define DRIVER_NAME MODULE_NAME
27#define DRIVER_DESC "OMAP DRM"
28#define DRIVER_DATE "20110917"
29#define DRIVER_MAJOR 1
30#define DRIVER_MINOR 0
31#define DRIVER_PATCHLEVEL 0
32
33struct drm_device *drm_device;
34
35static int num_crtc = CONFIG_DRM_OMAP_NUM_CRTCS;
36
37MODULE_PARM_DESC(num_crtc, "Number of overlays to use as CRTCs");
38module_param(num_crtc, int, 0600);
39
40/*
41 * mode config funcs
42 */
43
44/* Notes about mapping DSS and DRM entities:
45 * CRTC: overlay
46 * encoder: manager.. with some extension to allow one primary CRTC
47 * and zero or more video CRTC's to be mapped to one encoder?
48 * connector: dssdev.. manager can be attached/detached from different
49 * devices
50 */
51
52static void omap_fb_output_poll_changed(struct drm_device *dev)
53{
54 struct omap_drm_private *priv = dev->dev_private;
55 DBG("dev=%p", dev);
56 if (priv->fbdev) {
57 drm_fb_helper_hotplug_event(priv->fbdev);
58 }
59}
60
61static const struct drm_mode_config_funcs omap_mode_config_funcs = {
62 .fb_create = omap_framebuffer_create,
63 .output_poll_changed = omap_fb_output_poll_changed,
64};
65
66static int get_connector_type(struct omap_dss_device *dssdev)
67{
68 switch (dssdev->type) {
69 case OMAP_DISPLAY_TYPE_HDMI:
70 return DRM_MODE_CONNECTOR_HDMIA;
71 case OMAP_DISPLAY_TYPE_DPI:
72 if (!strcmp(dssdev->name, "dvi"))
73 return DRM_MODE_CONNECTOR_DVID;
74 /* fallthrough */
75 default:
76 return DRM_MODE_CONNECTOR_Unknown;
77 }
78}
79
80#if 0 /* enable when dss2 supports hotplug */
81static int omap_drm_notifier(struct notifier_block *nb,
82 unsigned long evt, void *arg)
83{
84 switch (evt) {
85 case OMAP_DSS_SIZE_CHANGE:
86 case OMAP_DSS_HOTPLUG_CONNECT:
87 case OMAP_DSS_HOTPLUG_DISCONNECT: {
88 struct drm_device *dev = drm_device;
89 DBG("hotplug event: evt=%d, dev=%p", evt, dev);
90 if (dev) {
91 drm_sysfs_hotplug_event(dev);
92 }
93 return NOTIFY_OK;
94 }
95 default: /* don't care about other events for now */
96 return NOTIFY_DONE;
97 }
98}
99#endif
100
101static void dump_video_chains(void)
102{
103 int i;
104
105 DBG("dumping video chains: ");
106 for (i = 0; i < omap_dss_get_num_overlays(); i++) {
107 struct omap_overlay *ovl = omap_dss_get_overlay(i);
108 struct omap_overlay_manager *mgr = ovl->manager;
109 struct omap_dss_device *dssdev = mgr ? mgr->device : NULL;
110 if (dssdev) {
111 DBG("%d: %s -> %s -> %s", i, ovl->name, mgr->name,
112 dssdev->name);
113 } else if (mgr) {
114 DBG("%d: %s -> %s", i, ovl->name, mgr->name);
115 } else {
116 DBG("%d: %s", i, ovl->name);
117 }
118 }
119}
120
121/* create encoders for each manager */
122static int create_encoder(struct drm_device *dev,
123 struct omap_overlay_manager *mgr)
124{
125 struct omap_drm_private *priv = dev->dev_private;
126 struct drm_encoder *encoder = omap_encoder_init(dev, mgr);
127
128 if (!encoder) {
129 dev_err(dev->dev, "could not create encoder: %s\n",
130 mgr->name);
131 return -ENOMEM;
132 }
133
134 BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
135
136 priv->encoders[priv->num_encoders++] = encoder;
137
138 return 0;
139}
140
141/* create connectors for each display device */
142static int create_connector(struct drm_device *dev,
143 struct omap_dss_device *dssdev)
144{
145 struct omap_drm_private *priv = dev->dev_private;
146 static struct notifier_block *notifier;
147 struct drm_connector *connector;
148 int j;
149
150 if (!dssdev->driver) {
151 dev_warn(dev->dev, "%s has no driver.. skipping it\n",
152 dssdev->name);
153 return 0;
154 }
155
156 if (!(dssdev->driver->get_timings ||
157 dssdev->driver->read_edid)) {
158 dev_warn(dev->dev, "%s driver does not support "
159 "get_timings or read_edid.. skipping it!\n",
160 dssdev->name);
161 return 0;
162 }
163
164 connector = omap_connector_init(dev,
165 get_connector_type(dssdev), dssdev);
166
167 if (!connector) {
168 dev_err(dev->dev, "could not create connector: %s\n",
169 dssdev->name);
170 return -ENOMEM;
171 }
172
173 BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
174
175 priv->connectors[priv->num_connectors++] = connector;
176
177#if 0 /* enable when dss2 supports hotplug */
178 notifier = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
179 notifier->notifier_call = omap_drm_notifier;
180 omap_dss_add_notify(dssdev, notifier);
181#else
182 notifier = NULL;
183#endif
184
185 for (j = 0; j < priv->num_encoders; j++) {
186 struct omap_overlay_manager *mgr =
187 omap_encoder_get_manager(priv->encoders[j]);
188 if (mgr->device == dssdev) {
189 drm_mode_connector_attach_encoder(connector,
190 priv->encoders[j]);
191 }
192 }
193
194 return 0;
195}
196
197/* create up to max_overlays CRTCs mapping to overlays.. by default,
198 * connect the overlays to different managers/encoders, giving priority
199 * to encoders connected to connectors with a detected connection
200 */
201static int create_crtc(struct drm_device *dev, struct omap_overlay *ovl,
202 int *j, unsigned int connected_connectors)
203{
204 struct omap_drm_private *priv = dev->dev_private;
205 struct omap_overlay_manager *mgr = NULL;
206 struct drm_crtc *crtc;
207
208 /* find next best connector, ones with detected connection first
209 */
210 while (*j < priv->num_connectors && !mgr) {
211 if (connected_connectors & (1 << *j)) {
212 struct drm_encoder *encoder =
213 omap_connector_attached_encoder(
214 priv->connectors[*j]);
215 if (encoder) {
216 mgr = omap_encoder_get_manager(encoder);
217 }
218 }
219 (*j)++;
220 }
221
222 /* if we couldn't find another connected connector, lets start
223 * looking at the unconnected connectors:
224 *
225 * note: it might not be immediately apparent, but thanks to
226 * the !mgr check in both this loop and the one above, the only
227 * way to enter this loop is with *j == priv->num_connectors,
228 * so idx can never go negative.
229 */
230 while (*j < 2 * priv->num_connectors && !mgr) {
231 int idx = *j - priv->num_connectors;
232 if (!(connected_connectors & (1 << idx))) {
233 struct drm_encoder *encoder =
234 omap_connector_attached_encoder(
235 priv->connectors[idx]);
236 if (encoder) {
237 mgr = omap_encoder_get_manager(encoder);
238 }
239 }
240 (*j)++;
241 }
242
243 crtc = omap_crtc_init(dev, ovl, priv->num_crtcs);
244
245 if (!crtc) {
246 dev_err(dev->dev, "could not create CRTC: %s\n",
247 ovl->name);
248 return -ENOMEM;
249 }
250
251 BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
252
253 priv->crtcs[priv->num_crtcs++] = crtc;
254
255 return 0;
256}
257
258static int create_plane(struct drm_device *dev, struct omap_overlay *ovl,
259 unsigned int possible_crtcs)
260{
261 struct omap_drm_private *priv = dev->dev_private;
262 struct drm_plane *plane =
263 omap_plane_init(dev, ovl, possible_crtcs, false);
264
265 if (!plane) {
266 dev_err(dev->dev, "could not create plane: %s\n",
267 ovl->name);
268 return -ENOMEM;
269 }
270
271 BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes));
272
273 priv->planes[priv->num_planes++] = plane;
274
275 return 0;
276}
277
278static int match_dev_name(struct omap_dss_device *dssdev, void *data)
279{
280 return !strcmp(dssdev->name, data);
281}
282
283static unsigned int detect_connectors(struct drm_device *dev)
284{
285 struct omap_drm_private *priv = dev->dev_private;
286 unsigned int connected_connectors = 0;
287 int i;
288
289 for (i = 0; i < priv->num_connectors; i++) {
290 struct drm_connector *connector = priv->connectors[i];
291 if (omap_connector_detect(connector, true) ==
292 connector_status_connected) {
293 connected_connectors |= (1 << i);
294 }
295 }
296
297 return connected_connectors;
298}
299
300static int omap_modeset_init(struct drm_device *dev)
301{
302 const struct omap_drm_platform_data *pdata = dev->dev->platform_data;
303 struct omap_kms_platform_data *kms_pdata = NULL;
304 struct omap_drm_private *priv = dev->dev_private;
305 struct omap_dss_device *dssdev = NULL;
306 int i, j;
307 unsigned int connected_connectors = 0;
308
309 drm_mode_config_init(dev);
310
311 if (pdata && pdata->kms_pdata) {
312 kms_pdata = pdata->kms_pdata;
313
314 /* if platform data is provided by the board file, use it to
315 * control which overlays, managers, and devices we own.
316 */
317 for (i = 0; i < kms_pdata->mgr_cnt; i++) {
318 struct omap_overlay_manager *mgr =
319 omap_dss_get_overlay_manager(
320 kms_pdata->mgr_ids[i]);
321 create_encoder(dev, mgr);
322 }
323
324 for (i = 0; i < kms_pdata->dev_cnt; i++) {
325 struct omap_dss_device *dssdev =
326 omap_dss_find_device(
327 (void *)kms_pdata->dev_names[i],
328 match_dev_name);
329 if (!dssdev) {
330 dev_warn(dev->dev, "no such dssdev: %s\n",
331 kms_pdata->dev_names[i]);
332 continue;
333 }
334 create_connector(dev, dssdev);
335 }
336
337 connected_connectors = detect_connectors(dev);
338
339 j = 0;
340 for (i = 0; i < kms_pdata->ovl_cnt; i++) {
341 struct omap_overlay *ovl =
342 omap_dss_get_overlay(kms_pdata->ovl_ids[i]);
343 create_crtc(dev, ovl, &j, connected_connectors);
344 }
345
346 for (i = 0; i < kms_pdata->pln_cnt; i++) {
347 struct omap_overlay *ovl =
348 omap_dss_get_overlay(kms_pdata->pln_ids[i]);
349 create_plane(dev, ovl, (1 << priv->num_crtcs) - 1);
350 }
351 } else {
352 /* otherwise just grab up to CONFIG_DRM_OMAP_NUM_CRTCS and try
353 * to make educated guesses about everything else
354 */
355 int max_overlays = min(omap_dss_get_num_overlays(), num_crtc);
356
357 for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
358 create_encoder(dev, omap_dss_get_overlay_manager(i));
359 }
360
361 for_each_dss_dev(dssdev) {
362 create_connector(dev, dssdev);
363 }
364
365 connected_connectors = detect_connectors(dev);
366
367 j = 0;
368 for (i = 0; i < max_overlays; i++) {
369 create_crtc(dev, omap_dss_get_overlay(i),
370 &j, connected_connectors);
371 }
372
373 /* use any remaining overlays as drm planes */
374 for (; i < omap_dss_get_num_overlays(); i++) {
375 struct omap_overlay *ovl = omap_dss_get_overlay(i);
376 create_plane(dev, ovl, (1 << priv->num_crtcs) - 1);
377 }
378 }
379
380 /* for now keep the mapping of CRTCs and encoders static.. */
381 for (i = 0; i < priv->num_encoders; i++) {
382 struct drm_encoder *encoder = priv->encoders[i];
383 struct omap_overlay_manager *mgr =
384 omap_encoder_get_manager(encoder);
385
386 encoder->possible_crtcs = (1 << priv->num_crtcs) - 1;
387
388 DBG("%s: possible_crtcs=%08x", mgr->name,
389 encoder->possible_crtcs);
390 }
391
392 dump_video_chains();
393
394 dev->mode_config.min_width = 32;
395 dev->mode_config.min_height = 32;
396
397 /* note: eventually will need some cpu_is_omapXYZ() type stuff here
398 * to fill in these limits properly on different OMAP generations..
399 */
400 dev->mode_config.max_width = 2048;
401 dev->mode_config.max_height = 2048;
402
403 dev->mode_config.funcs = &omap_mode_config_funcs;
404
405 return 0;
406}
407
408static void omap_modeset_free(struct drm_device *dev)
409{
410 drm_mode_config_cleanup(dev);
411}
412
413/*
414 * drm ioctl funcs
415 */
416
417
418static int ioctl_get_param(struct drm_device *dev, void *data,
419 struct drm_file *file_priv)
420{
421 struct drm_omap_param *args = data;
422
423 DBG("%p: param=%llu", dev, args->param);
424
425 switch (args->param) {
426 case OMAP_PARAM_CHIPSET_ID:
427 args->value = GET_OMAP_TYPE;
428 break;
429 default:
430 DBG("unknown parameter %lld", args->param);
431 return -EINVAL;
432 }
433
434 return 0;
435}
436
437static int ioctl_set_param(struct drm_device *dev, void *data,
438 struct drm_file *file_priv)
439{
440 struct drm_omap_param *args = data;
441
442 switch (args->param) {
443 default:
444 DBG("unknown parameter %lld", args->param);
445 return -EINVAL;
446 }
447
448 return 0;
449}
450
451static int ioctl_gem_new(struct drm_device *dev, void *data,
452 struct drm_file *file_priv)
453{
454 struct drm_omap_gem_new *args = data;
455 DBG("%p:%p: size=0x%08x, flags=%08x", dev, file_priv,
456 args->size.bytes, args->flags);
457 return omap_gem_new_handle(dev, file_priv, args->size,
458 args->flags, &args->handle);
459}
460
461static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
462 struct drm_file *file_priv)
463{
464 struct drm_omap_gem_cpu_prep *args = data;
465 struct drm_gem_object *obj;
466 int ret;
467
468 VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op);
469
470 obj = drm_gem_object_lookup(dev, file_priv, args->handle);
471 if (!obj) {
472 return -ENOENT;
473 }
474
475 ret = omap_gem_op_sync(obj, args->op);
476
477 if (!ret) {
478 ret = omap_gem_op_start(obj, args->op);
479 }
480
481 drm_gem_object_unreference_unlocked(obj);
482
483 return ret;
484}
485
486static int ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
487 struct drm_file *file_priv)
488{
489 struct drm_omap_gem_cpu_fini *args = data;
490 struct drm_gem_object *obj;
491 int ret;
492
493 VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
494
495 obj = drm_gem_object_lookup(dev, file_priv, args->handle);
496 if (!obj) {
497 return -ENOENT;
498 }
499
500 /* XXX flushy, flushy */
501 ret = 0;
502
503 if (!ret) {
504 ret = omap_gem_op_finish(obj, args->op);
505 }
506
507 drm_gem_object_unreference_unlocked(obj);
508
509 return ret;
510}
511
512static int ioctl_gem_info(struct drm_device *dev, void *data,
513 struct drm_file *file_priv)
514{
515 struct drm_omap_gem_info *args = data;
516 struct drm_gem_object *obj;
517 int ret = 0;
518
519 DBG("%p:%p: handle=%d", dev, file_priv, args->handle);
520
521 obj = drm_gem_object_lookup(dev, file_priv, args->handle);
522 if (!obj) {
523 return -ENOENT;
524 }
525
526 args->size = omap_gem_mmap_size(obj);
527 args->offset = omap_gem_mmap_offset(obj);
528
529 drm_gem_object_unreference_unlocked(obj);
530
531 return ret;
532}
533
534struct drm_ioctl_desc ioctls[DRM_COMMAND_END - DRM_COMMAND_BASE] = {
535 DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM, ioctl_get_param, DRM_UNLOCKED|DRM_AUTH),
536 DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM, ioctl_set_param, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
537 DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW, ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH),
538 DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP, ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
539 DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI, ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
540 DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO, ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH),
541};
542
543/*
544 * drm driver funcs
545 */
546
547/**
548 * load - setup chip and create an initial config
549 * @dev: DRM device
550 * @flags: startup flags
551 *
552 * The driver load routine has to do several things:
553 * - initialize the memory manager
554 * - allocate initial config memory
555 * - setup the DRM framebuffer with the allocated memory
556 */
557static int dev_load(struct drm_device *dev, unsigned long flags)
558{
559 struct omap_drm_private *priv;
560 int ret;
561
562 DBG("load: dev=%p", dev);
563
564 drm_device = dev;
565
566 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
567 if (!priv) {
568 dev_err(dev->dev, "could not allocate priv\n");
569 return -ENOMEM;
570 }
571
572 dev->dev_private = priv;
573
574 priv->wq = alloc_workqueue("omapdrm",
575 WQ_UNBOUND | WQ_NON_REENTRANT, 1);
576
577 INIT_LIST_HEAD(&priv->obj_list);
578
579 omap_gem_init(dev);
580
581 ret = omap_modeset_init(dev);
582 if (ret) {
583 dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
584 dev->dev_private = NULL;
585 kfree(priv);
586 return ret;
587 }
588
589 priv->fbdev = omap_fbdev_init(dev);
590 if (!priv->fbdev) {
591 dev_warn(dev->dev, "omap_fbdev_init failed\n");
592 /* well, limp along without an fbdev.. maybe X11 will work? */
593 }
594
595 drm_kms_helper_poll_init(dev);
596
597 ret = drm_vblank_init(dev, priv->num_crtcs);
598 if (ret) {
599 dev_warn(dev->dev, "could not init vblank\n");
600 }
601
602 return 0;
603}
604
605static int dev_unload(struct drm_device *dev)
606{
607 struct omap_drm_private *priv = dev->dev_private;
608
609 DBG("unload: dev=%p", dev);
610
611 drm_vblank_cleanup(dev);
612 drm_kms_helper_poll_fini(dev);
613
614 omap_fbdev_free(dev);
615 omap_modeset_free(dev);
616 omap_gem_deinit(dev);
617
618 flush_workqueue(priv->wq);
619 destroy_workqueue(priv->wq);
620
621 kfree(dev->dev_private);
622 dev->dev_private = NULL;
623
624 return 0;
625}
626
627static int dev_open(struct drm_device *dev, struct drm_file *file)
628{
629 file->driver_priv = NULL;
630
631 DBG("open: dev=%p, file=%p", dev, file);
632
633 return 0;
634}
635
636static int dev_firstopen(struct drm_device *dev)
637{
638 DBG("firstopen: dev=%p", dev);
639 return 0;
640}
641
642/**
643 * lastclose - clean up after all DRM clients have exited
644 * @dev: DRM device
645 *
646 * Take care of cleaning up after all DRM clients have exited. In the
647 * mode setting case, we want to restore the kernel's initial mode (just
648 * in case the last client left us in a bad state).
649 */
650static void dev_lastclose(struct drm_device *dev)
651{
652 /* we don't support vga-switcheroo.. so just make sure the fbdev
653 * mode is active
654 */
655 struct omap_drm_private *priv = dev->dev_private;
656 int ret;
657
658 DBG("lastclose: dev=%p", dev);
659
660 ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev);
661 if (ret)
662 DBG("failed to restore crtc mode");
663}
664
665static void dev_preclose(struct drm_device *dev, struct drm_file *file)
666{
667 DBG("preclose: dev=%p", dev);
668}
669
670static void dev_postclose(struct drm_device *dev, struct drm_file *file)
671{
672 DBG("postclose: dev=%p, file=%p", dev, file);
673}
674
675/**
676 * enable_vblank - enable vblank interrupt events
677 * @dev: DRM device
678 * @crtc: which irq to enable
679 *
680 * Enable vblank interrupts for @crtc. If the device doesn't have
681 * a hardware vblank counter, this routine should be a no-op, since
682 * interrupts will have to stay on to keep the count accurate.
683 *
684 * RETURNS
685 * Zero on success, appropriate errno if the given @crtc's vblank
686 * interrupt cannot be enabled.
687 */
688static int dev_enable_vblank(struct drm_device *dev, int crtc)
689{
690 DBG("enable_vblank: dev=%p, crtc=%d", dev, crtc);
691 return 0;
692}
693
694/**
695 * disable_vblank - disable vblank interrupt events
696 * @dev: DRM device
697 * @crtc: which irq to enable
698 *
699 * Disable vblank interrupts for @crtc. If the device doesn't have
700 * a hardware vblank counter, this routine should be a no-op, since
701 * interrupts will have to stay on to keep the count accurate.
702 */
703static void dev_disable_vblank(struct drm_device *dev, int crtc)
704{
705 DBG("disable_vblank: dev=%p, crtc=%d", dev, crtc);
706}
707
708static irqreturn_t dev_irq_handler(DRM_IRQ_ARGS)
709{
710 return IRQ_HANDLED;
711}
712
713static void dev_irq_preinstall(struct drm_device *dev)
714{
715 DBG("irq_preinstall: dev=%p", dev);
716}
717
718static int dev_irq_postinstall(struct drm_device *dev)
719{
720 DBG("irq_postinstall: dev=%p", dev);
721 return 0;
722}
723
724static void dev_irq_uninstall(struct drm_device *dev)
725{
726 DBG("irq_uninstall: dev=%p", dev);
727}
728
729static const struct vm_operations_struct omap_gem_vm_ops = {
730 .fault = omap_gem_fault,
731 .open = drm_gem_vm_open,
732 .close = drm_gem_vm_close,
733};
734
735static const struct file_operations omapdriver_fops = {
736 .owner = THIS_MODULE,
737 .open = drm_open,
738 .unlocked_ioctl = drm_ioctl,
739 .release = drm_release,
740 .mmap = omap_gem_mmap,
741 .poll = drm_poll,
742 .fasync = drm_fasync,
743 .read = drm_read,
744 .llseek = noop_llseek,
745};
746
747static struct drm_driver omap_drm_driver = {
748 .driver_features =
749 DRIVER_HAVE_IRQ | DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
750 .load = dev_load,
751 .unload = dev_unload,
752 .open = dev_open,
753 .firstopen = dev_firstopen,
754 .lastclose = dev_lastclose,
755 .preclose = dev_preclose,
756 .postclose = dev_postclose,
757 .get_vblank_counter = drm_vblank_count,
758 .enable_vblank = dev_enable_vblank,
759 .disable_vblank = dev_disable_vblank,
760 .irq_preinstall = dev_irq_preinstall,
761 .irq_postinstall = dev_irq_postinstall,
762 .irq_uninstall = dev_irq_uninstall,
763 .irq_handler = dev_irq_handler,
764 .reclaim_buffers = drm_core_reclaim_buffers,
765#ifdef CONFIG_DEBUG_FS
766 .debugfs_init = omap_debugfs_init,
767 .debugfs_cleanup = omap_debugfs_cleanup,
768#endif
769 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
770 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
771 .gem_prime_export = omap_gem_prime_export,
772 .gem_prime_import = omap_gem_prime_import,
773 .gem_init_object = omap_gem_init_object,
774 .gem_free_object = omap_gem_free_object,
775 .gem_vm_ops = &omap_gem_vm_ops,
776 .dumb_create = omap_gem_dumb_create,
777 .dumb_map_offset = omap_gem_dumb_map_offset,
778 .dumb_destroy = omap_gem_dumb_destroy,
779 .ioctls = ioctls,
780 .num_ioctls = DRM_OMAP_NUM_IOCTLS,
781 .fops = &omapdriver_fops,
782 .name = DRIVER_NAME,
783 .desc = DRIVER_DESC,
784 .date = DRIVER_DATE,
785 .major = DRIVER_MAJOR,
786 .minor = DRIVER_MINOR,
787 .patchlevel = DRIVER_PATCHLEVEL,
788};
789
790static int pdev_suspend(struct platform_device *pDevice, pm_message_t state)
791{
792 DBG("");
793 return 0;
794}
795
796static int pdev_resume(struct platform_device *device)
797{
798 DBG("");
799 return 0;
800}
801
802static void pdev_shutdown(struct platform_device *device)
803{
804 DBG("");
805}
806
807static int pdev_probe(struct platform_device *device)
808{
809 DBG("%s", device->name);
810 return drm_platform_init(&omap_drm_driver, device);
811}
812
813static int pdev_remove(struct platform_device *device)
814{
815 DBG("");
816 drm_platform_exit(&omap_drm_driver, device);
817
818 platform_driver_unregister(&omap_dmm_driver);
819 return 0;
820}
821
822struct platform_driver pdev = {
823 .driver = {
824 .name = DRIVER_NAME,
825 .owner = THIS_MODULE,
826 },
827 .probe = pdev_probe,
828 .remove = pdev_remove,
829 .suspend = pdev_suspend,
830 .resume = pdev_resume,
831 .shutdown = pdev_shutdown,
832};
833
834static int __init omap_drm_init(void)
835{
836 DBG("init");
837 if (platform_driver_register(&omap_dmm_driver)) {
838 /* we can continue on without DMM.. so not fatal */
839 dev_err(NULL, "DMM registration failed\n");
840 }
841 return platform_driver_register(&pdev);
842}
843
844static void __exit omap_drm_fini(void)
845{
846 DBG("fini");
847 platform_driver_unregister(&pdev);
848}
849
850/* need late_initcall() so we load after dss_driver's are loaded */
851late_initcall(omap_drm_init);
852module_exit(omap_drm_fini);
853
854MODULE_AUTHOR("Rob Clark <rob@ti.com>");
855MODULE_DESCRIPTION("OMAP DRM Display Driver");
856MODULE_ALIAS("platform:" DRIVER_NAME);
857MODULE_LICENSE("GPL v2");