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32#include <linux/init.h>
33#include <linux/module.h>
34#include <linux/vmalloc.h>
35#include <linux/sched.h>
36#include <linux/types.h>
37#include <linux/platform_device.h>
38#include <linux/irq.h>
39#include <linux/videodev2.h>
40#include <linux/dma-mapping.h>
41#include <linux/slab.h>
42
43#include <media/v4l2-device.h>
44#include <media/v4l2-ioctl.h>
45#include <media/v4l2-event.h>
46
47#include <video/omapvrfb.h>
48#include <video/omapfb_dss.h>
49
50#include "omap_voutlib.h"
51#include "omap_voutdef.h"
52#include "omap_vout_vrfb.h"
53
54MODULE_AUTHOR("Texas Instruments");
55MODULE_DESCRIPTION("OMAP Video for Linux Video out driver");
56MODULE_LICENSE("GPL");
57
58
59#define VOUT_NAME "omap_vout"
60
61enum omap_vout_channels {
62 OMAP_VIDEO1,
63 OMAP_VIDEO2,
64};
65
66
67static bool vid1_static_vrfb_alloc;
68static bool vid2_static_vrfb_alloc;
69static bool debug;
70
71
72module_param(vid1_static_vrfb_alloc, bool, S_IRUGO);
73MODULE_PARM_DESC(vid1_static_vrfb_alloc,
74 "Static allocation of the VRFB buffer for video1 device");
75
76module_param(vid2_static_vrfb_alloc, bool, S_IRUGO);
77MODULE_PARM_DESC(vid2_static_vrfb_alloc,
78 "Static allocation of the VRFB buffer for video2 device");
79
80module_param(debug, bool, S_IRUGO);
81MODULE_PARM_DESC(debug, "Debug level (0-1)");
82
83
84static const struct v4l2_fmtdesc omap_formats[] = {
85 {
86
87
88
89
90
91
92
93
94
95
96 .pixelformat = V4L2_PIX_FMT_RGB565,
97 },
98 {
99
100
101
102 .pixelformat = V4L2_PIX_FMT_RGB32,
103 },
104 {
105
106
107
108
109 .pixelformat = V4L2_PIX_FMT_RGB24,
110 },
111 {
112 .pixelformat = V4L2_PIX_FMT_YUYV,
113 },
114 {
115 .pixelformat = V4L2_PIX_FMT_UYVY,
116 },
117};
118
119#define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats))
120
121
122
123
124static int omap_vout_try_format(struct v4l2_pix_format *pix)
125{
126 int ifmt, bpp = 0;
127
128 pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT,
129 (u32)VID_MAX_HEIGHT);
130 pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH);
131
132 for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) {
133 if (pix->pixelformat == omap_formats[ifmt].pixelformat)
134 break;
135 }
136
137 if (ifmt == NUM_OUTPUT_FORMATS)
138 ifmt = 0;
139
140 pix->pixelformat = omap_formats[ifmt].pixelformat;
141 pix->field = V4L2_FIELD_NONE;
142
143 switch (pix->pixelformat) {
144 case V4L2_PIX_FMT_YUYV:
145 case V4L2_PIX_FMT_UYVY:
146 default:
147 pix->colorspace = V4L2_COLORSPACE_SRGB;
148 bpp = YUYV_BPP;
149 break;
150 case V4L2_PIX_FMT_RGB565:
151 case V4L2_PIX_FMT_RGB565X:
152 pix->colorspace = V4L2_COLORSPACE_SRGB;
153 bpp = RGB565_BPP;
154 break;
155 case V4L2_PIX_FMT_RGB24:
156 pix->colorspace = V4L2_COLORSPACE_SRGB;
157 bpp = RGB24_BPP;
158 break;
159 case V4L2_PIX_FMT_RGB32:
160 case V4L2_PIX_FMT_BGR32:
161 pix->colorspace = V4L2_COLORSPACE_SRGB;
162 bpp = RGB32_BPP;
163 break;
164 }
165 pix->bytesperline = pix->width * bpp;
166 pix->sizeimage = pix->bytesperline * pix->height;
167
168 return bpp;
169}
170
171
172
173
174
175
176static int v4l2_rot_to_dss_rot(int v4l2_rotation,
177 enum dss_rotation *rotation, bool mirror)
178{
179 int ret = 0;
180
181 switch (v4l2_rotation) {
182 case 90:
183 *rotation = dss_rotation_90_degree;
184 break;
185 case 180:
186 *rotation = dss_rotation_180_degree;
187 break;
188 case 270:
189 *rotation = dss_rotation_270_degree;
190 break;
191 case 0:
192 *rotation = dss_rotation_0_degree;
193 break;
194 default:
195 ret = -EINVAL;
196 }
197 return ret;
198}
199
200static int omap_vout_calculate_offset(struct omap_vout_device *vout)
201{
202 struct omapvideo_info *ovid;
203 struct v4l2_rect *crop = &vout->crop;
204 struct v4l2_pix_format *pix = &vout->pix;
205 int *cropped_offset = &vout->cropped_offset;
206 int ps = 2, line_length = 0;
207
208 ovid = &vout->vid_info;
209
210 if (ovid->rotation_type == VOUT_ROT_VRFB) {
211 omap_vout_calculate_vrfb_offset(vout);
212 } else {
213 vout->line_length = line_length = pix->width;
214
215 if (V4L2_PIX_FMT_YUYV == pix->pixelformat ||
216 V4L2_PIX_FMT_UYVY == pix->pixelformat)
217 ps = 2;
218 else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat)
219 ps = 4;
220 else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat)
221 ps = 3;
222
223 vout->ps = ps;
224
225 *cropped_offset = (line_length * ps) *
226 crop->top + crop->left * ps;
227 }
228
229 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n",
230 __func__, vout->cropped_offset);
231
232 return 0;
233}
234
235
236
237
238static int video_mode_to_dss_mode(struct omap_vout_device *vout)
239{
240 struct omap_overlay *ovl;
241 struct omapvideo_info *ovid;
242 struct v4l2_pix_format *pix = &vout->pix;
243 enum omap_color_mode mode;
244
245 ovid = &vout->vid_info;
246 ovl = ovid->overlays[0];
247
248 switch (pix->pixelformat) {
249 case V4L2_PIX_FMT_YUYV:
250 mode = OMAP_DSS_COLOR_YUV2;
251 break;
252 case V4L2_PIX_FMT_UYVY:
253 mode = OMAP_DSS_COLOR_UYVY;
254 break;
255 case V4L2_PIX_FMT_RGB565:
256 mode = OMAP_DSS_COLOR_RGB16;
257 break;
258 case V4L2_PIX_FMT_RGB24:
259 mode = OMAP_DSS_COLOR_RGB24P;
260 break;
261 case V4L2_PIX_FMT_RGB32:
262 mode = (ovl->id == OMAP_DSS_VIDEO1) ?
263 OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32;
264 break;
265 case V4L2_PIX_FMT_BGR32:
266 mode = OMAP_DSS_COLOR_RGBX32;
267 break;
268 default:
269 mode = -EINVAL;
270 break;
271 }
272 return mode;
273}
274
275
276
277
278static int omapvid_setup_overlay(struct omap_vout_device *vout,
279 struct omap_overlay *ovl, int posx, int posy, int outw,
280 int outh, dma_addr_t addr)
281{
282 int ret = 0;
283 struct omap_overlay_info info;
284 int cropheight, cropwidth, pixwidth;
285
286 if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 &&
287 (outw != vout->pix.width || outh != vout->pix.height)) {
288 ret = -EINVAL;
289 goto setup_ovl_err;
290 }
291
292 vout->dss_mode = video_mode_to_dss_mode(vout);
293 if (vout->dss_mode == -EINVAL) {
294 ret = -EINVAL;
295 goto setup_ovl_err;
296 }
297
298
299
300
301 if (is_rotation_90_or_270(vout)) {
302 cropheight = vout->crop.width;
303 cropwidth = vout->crop.height;
304 pixwidth = vout->pix.height;
305 } else {
306 cropheight = vout->crop.height;
307 cropwidth = vout->crop.width;
308 pixwidth = vout->pix.width;
309 }
310
311 ovl->get_overlay_info(ovl, &info);
312 info.paddr = addr;
313 info.width = cropwidth;
314 info.height = cropheight;
315 info.color_mode = vout->dss_mode;
316 info.mirror = vout->mirror;
317 info.pos_x = posx;
318 info.pos_y = posy;
319 info.out_width = outw;
320 info.out_height = outh;
321 info.global_alpha = vout->win.global_alpha;
322 if (!is_rotation_enabled(vout)) {
323 info.rotation = 0;
324 info.rotation_type = OMAP_DSS_ROT_DMA;
325 info.screen_width = pixwidth;
326 } else {
327 info.rotation = vout->rotation;
328 info.rotation_type = OMAP_DSS_ROT_VRFB;
329 info.screen_width = 2048;
330 }
331
332 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
333 "%s enable=%d addr=%pad width=%d\n height=%d color_mode=%d\n"
334 "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n"
335 "out_height=%d rotation_type=%d screen_width=%d\n", __func__,
336 ovl->is_enabled(ovl), &info.paddr, info.width, info.height,
337 info.color_mode, info.rotation, info.mirror, info.pos_x,
338 info.pos_y, info.out_width, info.out_height, info.rotation_type,
339 info.screen_width);
340
341 ret = ovl->set_overlay_info(ovl, &info);
342 if (ret)
343 goto setup_ovl_err;
344
345 return 0;
346
347setup_ovl_err:
348 v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n");
349 return ret;
350}
351
352
353
354
355static int omapvid_init(struct omap_vout_device *vout, dma_addr_t addr)
356{
357 int ret = 0, i;
358 struct v4l2_window *win;
359 struct omap_overlay *ovl;
360 int posx, posy, outw, outh;
361 struct omap_video_timings *timing;
362 struct omapvideo_info *ovid = &vout->vid_info;
363
364 win = &vout->win;
365 for (i = 0; i < ovid->num_overlays; i++) {
366 struct omap_dss_device *dssdev;
367
368 ovl = ovid->overlays[i];
369 dssdev = ovl->get_device(ovl);
370
371 if (!dssdev)
372 return -EINVAL;
373
374 timing = &dssdev->panel.timings;
375
376 outw = win->w.width;
377 outh = win->w.height;
378 switch (vout->rotation) {
379 case dss_rotation_90_degree:
380
381
382
383 swap(outw, outh);
384 posy = (timing->y_res - win->w.width) - win->w.left;
385 posx = win->w.top;
386 break;
387
388 case dss_rotation_180_degree:
389 posx = (timing->x_res - win->w.width) - win->w.left;
390 posy = (timing->y_res - win->w.height) - win->w.top;
391 break;
392
393 case dss_rotation_270_degree:
394 swap(outw, outh);
395 posy = win->w.left;
396 posx = (timing->x_res - win->w.height) - win->w.top;
397 break;
398
399 default:
400 posx = win->w.left;
401 posy = win->w.top;
402 break;
403 }
404
405 ret = omapvid_setup_overlay(vout, ovl, posx, posy,
406 outw, outh, addr);
407 if (ret)
408 goto omapvid_init_err;
409 }
410 return 0;
411
412omapvid_init_err:
413 v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n");
414 return ret;
415}
416
417
418
419
420static int omapvid_apply_changes(struct omap_vout_device *vout)
421{
422 int i;
423 struct omap_overlay *ovl;
424 struct omapvideo_info *ovid = &vout->vid_info;
425
426 for (i = 0; i < ovid->num_overlays; i++) {
427 struct omap_dss_device *dssdev;
428
429 ovl = ovid->overlays[i];
430 dssdev = ovl->get_device(ovl);
431 if (!dssdev)
432 return -EINVAL;
433 ovl->manager->apply(ovl->manager);
434 }
435
436 return 0;
437}
438
439static int omapvid_handle_interlace_display(struct omap_vout_device *vout,
440 unsigned int irqstatus, u64 ts)
441{
442 u32 fid;
443
444 if (vout->first_int) {
445 vout->first_int = 0;
446 goto err;
447 }
448
449 if (irqstatus & DISPC_IRQ_EVSYNC_ODD)
450 fid = 1;
451 else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN)
452 fid = 0;
453 else
454 goto err;
455
456 vout->field_id ^= 1;
457 if (fid != vout->field_id) {
458 if (fid == 0)
459 vout->field_id = fid;
460 } else if (0 == fid) {
461 if (vout->cur_frm == vout->next_frm)
462 goto err;
463
464 vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
465 vout->cur_frm->vbuf.sequence = vout->sequence++;
466 vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
467 vout->cur_frm = vout->next_frm;
468 } else {
469 if (list_empty(&vout->dma_queue) ||
470 (vout->cur_frm != vout->next_frm))
471 goto err;
472 }
473
474 return vout->field_id;
475err:
476 return 0;
477}
478
479static void omap_vout_isr(void *arg, unsigned int irqstatus)
480{
481 int ret, fid, mgr_id;
482 dma_addr_t addr;
483 u32 irq;
484 struct omap_overlay *ovl;
485 u64 ts;
486 struct omapvideo_info *ovid;
487 struct omap_dss_device *cur_display;
488 struct omap_vout_device *vout = (struct omap_vout_device *)arg;
489
490 ovid = &vout->vid_info;
491 ovl = ovid->overlays[0];
492
493 mgr_id = ovl->manager->id;
494
495
496 cur_display = ovl->get_device(ovl);
497
498 if (!cur_display)
499 return;
500
501 spin_lock(&vout->vbq_lock);
502 ts = ktime_get_ns();
503
504 switch (cur_display->type) {
505 case OMAP_DISPLAY_TYPE_DSI:
506 case OMAP_DISPLAY_TYPE_DPI:
507 case OMAP_DISPLAY_TYPE_DVI:
508 if (mgr_id == OMAP_DSS_CHANNEL_LCD)
509 irq = DISPC_IRQ_VSYNC;
510 else if (mgr_id == OMAP_DSS_CHANNEL_LCD2)
511 irq = DISPC_IRQ_VSYNC2;
512 else
513 goto vout_isr_err;
514
515 if (!(irqstatus & irq))
516 goto vout_isr_err;
517 break;
518 case OMAP_DISPLAY_TYPE_VENC:
519 fid = omapvid_handle_interlace_display(vout, irqstatus,
520 ts);
521 if (!fid)
522 goto vout_isr_err;
523 break;
524 case OMAP_DISPLAY_TYPE_HDMI:
525 if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN))
526 goto vout_isr_err;
527 break;
528 default:
529 goto vout_isr_err;
530 }
531
532 if (!vout->first_int && (vout->cur_frm != vout->next_frm)) {
533 vout->cur_frm->vbuf.vb2_buf.timestamp = ts;
534 vout->cur_frm->vbuf.sequence = vout->sequence++;
535 vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
536 vout->cur_frm = vout->next_frm;
537 }
538
539 vout->first_int = 0;
540 if (list_empty(&vout->dma_queue))
541 goto vout_isr_err;
542
543 vout->next_frm = list_entry(vout->dma_queue.next,
544 struct omap_vout_buffer, queue);
545 list_del(&vout->next_frm->queue);
546
547 addr = vout->queued_buf_addr[vout->next_frm->vbuf.vb2_buf.index]
548 + vout->cropped_offset;
549
550
551 ret = omapvid_init(vout, addr);
552 if (ret) {
553 printk(KERN_ERR VOUT_NAME
554 "failed to set overlay info\n");
555 goto vout_isr_err;
556 }
557
558
559 ret = omapvid_apply_changes(vout);
560 if (ret)
561 printk(KERN_ERR VOUT_NAME "failed to change mode\n");
562
563vout_isr_err:
564 spin_unlock(&vout->vbq_lock);
565}
566
567
568
569
570
571static int vidioc_querycap(struct file *file, void *fh,
572 struct v4l2_capability *cap)
573{
574 struct omap_vout_device *vout = video_drvdata(file);
575
576 strscpy(cap->driver, VOUT_NAME, sizeof(cap->driver));
577 strscpy(cap->card, vout->vfd->name, sizeof(cap->card));
578 snprintf(cap->bus_info, sizeof(cap->bus_info),
579 "platform:%s.%d", VOUT_NAME, vout->vid);
580 return 0;
581}
582
583static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
584 struct v4l2_fmtdesc *fmt)
585{
586 int index = fmt->index;
587
588 if (index >= NUM_OUTPUT_FORMATS)
589 return -EINVAL;
590
591 fmt->flags = omap_formats[index].flags;
592 fmt->pixelformat = omap_formats[index].pixelformat;
593
594 return 0;
595}
596
597static int vidioc_g_fmt_vid_out(struct file *file, void *fh,
598 struct v4l2_format *f)
599{
600 struct omap_vout_device *vout = video_drvdata(file);
601
602 f->fmt.pix = vout->pix;
603 return 0;
604
605}
606
607static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
608 struct v4l2_format *f)
609{
610 struct omap_overlay *ovl;
611 struct omapvideo_info *ovid;
612 struct omap_video_timings *timing;
613 struct omap_vout_device *vout = video_drvdata(file);
614 struct omap_dss_device *dssdev;
615
616 ovid = &vout->vid_info;
617 ovl = ovid->overlays[0];
618
619 dssdev = ovl->get_device(ovl);
620
621 if (!dssdev)
622 return -EINVAL;
623
624 timing = &dssdev->panel.timings;
625
626 vout->fbuf.fmt.height = timing->y_res;
627 vout->fbuf.fmt.width = timing->x_res;
628
629 omap_vout_try_format(&f->fmt.pix);
630 return 0;
631}
632
633static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
634 struct v4l2_format *f)
635{
636 int ret, bpp;
637 struct omap_overlay *ovl;
638 struct omapvideo_info *ovid;
639 struct omap_video_timings *timing;
640 struct omap_vout_device *vout = video_drvdata(file);
641 struct omap_dss_device *dssdev;
642
643 if (vb2_is_busy(&vout->vq))
644 return -EBUSY;
645
646 ovid = &vout->vid_info;
647 ovl = ovid->overlays[0];
648 dssdev = ovl->get_device(ovl);
649
650
651 if (!dssdev) {
652 ret = -EINVAL;
653 goto s_fmt_vid_out_exit;
654 }
655 timing = &dssdev->panel.timings;
656
657
658
659 if ((is_rotation_enabled(vout)) &&
660 f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
661 ret = -EINVAL;
662 goto s_fmt_vid_out_exit;
663 }
664
665
666
667 if (is_rotation_90_or_270(vout)) {
668 vout->fbuf.fmt.height = timing->x_res;
669 vout->fbuf.fmt.width = timing->y_res;
670 } else {
671 vout->fbuf.fmt.height = timing->y_res;
672 vout->fbuf.fmt.width = timing->x_res;
673 }
674
675
676
677 bpp = omap_vout_try_format(&f->fmt.pix);
678 f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp;
679
680
681 vout->bpp = bpp;
682 vout->pix = f->fmt.pix;
683 vout->vrfb_bpp = 1;
684
685
686 if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat ||
687 V4L2_PIX_FMT_UYVY == vout->pix.pixelformat)
688 vout->vrfb_bpp = 2;
689
690
691 omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win);
692
693 ret = 0;
694
695s_fmt_vid_out_exit:
696 return ret;
697}
698
699static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh,
700 struct v4l2_format *f)
701{
702 int ret = 0;
703 struct omap_vout_device *vout = video_drvdata(file);
704 struct omap_overlay *ovl;
705 struct omapvideo_info *ovid;
706 struct v4l2_window *win = &f->fmt.win;
707
708 ovid = &vout->vid_info;
709 ovl = ovid->overlays[0];
710
711 ret = omap_vout_try_window(&vout->fbuf, win);
712
713 if (!ret && !(ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA))
714 win->global_alpha = 0;
715
716 return ret;
717}
718
719static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh,
720 struct v4l2_format *f)
721{
722 int ret = 0;
723 struct omap_overlay *ovl;
724 struct omapvideo_info *ovid;
725 struct omap_vout_device *vout = video_drvdata(file);
726 struct v4l2_window *win = &f->fmt.win;
727
728 ovid = &vout->vid_info;
729 ovl = ovid->overlays[0];
730
731 ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win);
732 if (!ret) {
733 enum omap_dss_trans_key_type key_type =
734 OMAP_DSS_COLOR_KEY_GFX_DST;
735 int enable;
736
737
738 if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
739 vout->win.global_alpha = win->global_alpha;
740 else
741 win->global_alpha = 0;
742 if (vout->fbuf.flags & (V4L2_FBUF_FLAG_CHROMAKEY |
743 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
744 enable = 1;
745 else
746 enable = 0;
747 if (vout->fbuf.flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)
748 key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
749
750 if (ovl->manager && ovl->manager->get_manager_info &&
751 ovl->manager->set_manager_info) {
752 struct omap_overlay_manager_info info;
753
754 ovl->manager->get_manager_info(ovl->manager, &info);
755 info.trans_enabled = enable;
756 info.trans_key_type = key_type;
757 info.trans_key = vout->win.chromakey;
758
759 if (ovl->manager->set_manager_info(ovl->manager, &info))
760 return -EINVAL;
761 }
762 }
763 return ret;
764}
765
766static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh,
767 struct v4l2_format *f)
768{
769 struct omap_overlay *ovl;
770 struct omapvideo_info *ovid;
771 struct omap_vout_device *vout = video_drvdata(file);
772 struct v4l2_window *win = &f->fmt.win;
773
774 ovid = &vout->vid_info;
775 ovl = ovid->overlays[0];
776
777 win->w = vout->win.w;
778 win->field = vout->win.field;
779 win->chromakey = vout->win.chromakey;
780 if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA)
781 win->global_alpha = vout->win.global_alpha;
782 else
783 win->global_alpha = 0;
784 win->clips = NULL;
785 win->clipcount = 0;
786 win->bitmap = NULL;
787 return 0;
788}
789
790static int vidioc_g_selection(struct file *file, void *fh, struct v4l2_selection *sel)
791{
792 struct omap_vout_device *vout = video_drvdata(file);
793 struct v4l2_pix_format *pix = &vout->pix;
794
795 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
796 return -EINVAL;
797
798 switch (sel->target) {
799 case V4L2_SEL_TGT_CROP:
800 sel->r = vout->crop;
801 break;
802 case V4L2_SEL_TGT_CROP_DEFAULT:
803 omap_vout_default_crop(&vout->pix, &vout->fbuf, &sel->r);
804 break;
805 case V4L2_SEL_TGT_CROP_BOUNDS:
806
807 sel->r.width = pix->width & ~1;
808 sel->r.height = pix->height & ~1;
809 break;
810 default:
811 return -EINVAL;
812 }
813 return 0;
814}
815
816static int vidioc_s_selection(struct file *file, void *fh, struct v4l2_selection *sel)
817{
818 int ret = -EINVAL;
819 struct omap_vout_device *vout = video_drvdata(file);
820 struct omapvideo_info *ovid;
821 struct omap_overlay *ovl;
822 struct omap_video_timings *timing;
823 struct omap_dss_device *dssdev;
824
825 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
826 return -EINVAL;
827
828 if (sel->target != V4L2_SEL_TGT_CROP)
829 return -EINVAL;
830
831 if (vb2_is_busy(&vout->vq))
832 return -EBUSY;
833
834 ovid = &vout->vid_info;
835 ovl = ovid->overlays[0];
836
837 dssdev = ovl->get_device(ovl);
838
839 if (!dssdev) {
840 ret = -EINVAL;
841 goto s_crop_err;
842 }
843
844 timing = &dssdev->panel.timings;
845
846 if (is_rotation_90_or_270(vout)) {
847 vout->fbuf.fmt.height = timing->x_res;
848 vout->fbuf.fmt.width = timing->y_res;
849 } else {
850 vout->fbuf.fmt.height = timing->y_res;
851 vout->fbuf.fmt.width = timing->x_res;
852 }
853
854 ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win,
855 &vout->fbuf, &sel->r);
856
857s_crop_err:
858 return ret;
859}
860
861static int omap_vout_s_ctrl(struct v4l2_ctrl *ctrl)
862{
863 struct omap_vout_device *vout =
864 container_of(ctrl->handler, struct omap_vout_device, ctrl_handler);
865 int ret = 0;
866
867 switch (ctrl->id) {
868 case V4L2_CID_ROTATE: {
869 struct omapvideo_info *ovid;
870 int rotation = ctrl->val;
871
872 ovid = &vout->vid_info;
873
874 if (rotation && ovid->rotation_type == VOUT_ROT_NONE) {
875 ret = -ERANGE;
876 break;
877 }
878
879 if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
880 ret = -EINVAL;
881 break;
882 }
883
884 if (v4l2_rot_to_dss_rot(rotation, &vout->rotation,
885 vout->mirror)) {
886 ret = -EINVAL;
887 break;
888 }
889 break;
890 }
891 case V4L2_CID_BG_COLOR:
892 {
893 struct omap_overlay *ovl;
894 unsigned int color = ctrl->val;
895 struct omap_overlay_manager_info info;
896
897 ovl = vout->vid_info.overlays[0];
898
899 if (!ovl->manager || !ovl->manager->get_manager_info) {
900 ret = -EINVAL;
901 break;
902 }
903
904 ovl->manager->get_manager_info(ovl->manager, &info);
905 info.default_color = color;
906 if (ovl->manager->set_manager_info(ovl->manager, &info)) {
907 ret = -EINVAL;
908 break;
909 }
910 break;
911 }
912 case V4L2_CID_VFLIP:
913 {
914 struct omapvideo_info *ovid;
915 unsigned int mirror = ctrl->val;
916
917 ovid = &vout->vid_info;
918
919 if (mirror && ovid->rotation_type == VOUT_ROT_NONE) {
920 ret = -ERANGE;
921 break;
922 }
923
924 if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) {
925 ret = -EINVAL;
926 break;
927 }
928 vout->mirror = mirror;
929 break;
930 }
931 default:
932 return -EINVAL;
933 }
934 return ret;
935}
936
937static const struct v4l2_ctrl_ops omap_vout_ctrl_ops = {
938 .s_ctrl = omap_vout_s_ctrl,
939};
940
941static int omap_vout_vb2_queue_setup(struct vb2_queue *vq,
942 unsigned int *nbufs,
943 unsigned int *num_planes, unsigned int sizes[],
944 struct device *alloc_devs[])
945{
946 struct omap_vout_device *vout = vb2_get_drv_priv(vq);
947 int size = vout->pix.sizeimage;
948
949 if (is_rotation_enabled(vout) && vq->num_buffers + *nbufs > VRFB_NUM_BUFS) {
950 *nbufs = VRFB_NUM_BUFS - vq->num_buffers;
951 if (*nbufs == 0)
952 return -EINVAL;
953 }
954
955 if (*num_planes)
956 return sizes[0] < size ? -EINVAL : 0;
957
958 *num_planes = 1;
959 sizes[0] = size;
960 return 0;
961}
962
963static int omap_vout_vb2_prepare(struct vb2_buffer *vb)
964{
965 struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
966 struct omapvideo_info *ovid = &vout->vid_info;
967 struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
968 dma_addr_t buf_phy_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
969
970 if (vb2_plane_size(vb, 0) < vout->pix.sizeimage) {
971 v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev,
972 "%s data will not fit into plane (%lu < %u)\n",
973 __func__, vb2_plane_size(vb, 0), vout->pix.sizeimage);
974 return -EINVAL;
975 }
976
977 vb2_set_plane_payload(vb, 0, vout->pix.sizeimage);
978 voutbuf->vbuf.field = V4L2_FIELD_NONE;
979
980 vout->queued_buf_addr[vb->index] = buf_phy_addr;
981 if (ovid->rotation_type == VOUT_ROT_VRFB)
982 return omap_vout_prepare_vrfb(vout, vb);
983 return 0;
984}
985
986static void omap_vout_vb2_queue(struct vb2_buffer *vb)
987{
988 struct omap_vout_device *vout = vb2_get_drv_priv(vb->vb2_queue);
989 struct omap_vout_buffer *voutbuf = vb2_to_omap_vout_buffer(vb);
990
991 list_add_tail(&voutbuf->queue, &vout->dma_queue);
992}
993
994static int omap_vout_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
995{
996 struct omap_vout_device *vout = vb2_get_drv_priv(vq);
997 struct omapvideo_info *ovid = &vout->vid_info;
998 struct omap_vout_buffer *buf, *tmp;
999 dma_addr_t addr = 0;
1000 u32 mask = 0;
1001 int ret, j;
1002
1003
1004 vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next,
1005 struct omap_vout_buffer, queue);
1006
1007 list_del(&vout->cur_frm->queue);
1008
1009 vout->field_id = 0;
1010 vout->first_int = 1;
1011 vout->sequence = 0;
1012
1013 if (omap_vout_calculate_offset(vout)) {
1014 ret = -EINVAL;
1015 goto out;
1016 }
1017 if (ovid->rotation_type == VOUT_ROT_VRFB)
1018 if (omap_vout_vrfb_buffer_setup(vout, &count, 0)) {
1019 ret = -ENOMEM;
1020 goto out;
1021 }
1022
1023 addr = vout->queued_buf_addr[vout->cur_frm->vbuf.vb2_buf.index]
1024 + vout->cropped_offset;
1025
1026 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1027 | DISPC_IRQ_VSYNC2;
1028
1029
1030 ret = omapvid_init(vout, addr);
1031 if (ret) {
1032 v4l2_err(&vout->vid_dev->v4l2_dev,
1033 "failed to set overlay info\n");
1034 goto streamon_err1;
1035 }
1036
1037 omap_dispc_register_isr(omap_vout_isr, vout, mask);
1038
1039
1040 ret = omapvid_apply_changes(vout);
1041 if (ret)
1042 v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n");
1043
1044 for (j = 0; j < ovid->num_overlays; j++) {
1045 struct omap_overlay *ovl = ovid->overlays[j];
1046 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1047
1048 if (dssdev) {
1049 ret = ovl->enable(ovl);
1050 if (ret)
1051 goto streamon_err1;
1052 }
1053 }
1054 return 0;
1055
1056streamon_err1:
1057 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1058 | DISPC_IRQ_VSYNC2;
1059
1060 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1061
1062 for (j = 0; j < ovid->num_overlays; j++) {
1063 struct omap_overlay *ovl = ovid->overlays[j];
1064 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1065
1066 if (dssdev)
1067 ovl->disable(ovl);
1068 }
1069
1070 if (omapvid_apply_changes(vout))
1071 v4l2_err(&vout->vid_dev->v4l2_dev,
1072 "failed to change mode in streamoff\n");
1073
1074out:
1075 vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
1076 list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
1077 list_del(&buf->queue);
1078 vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_QUEUED);
1079 }
1080 return ret;
1081}
1082
1083static void omap_vout_vb2_stop_streaming(struct vb2_queue *vq)
1084{
1085 struct omap_vout_device *vout = vb2_get_drv_priv(vq);
1086 struct omapvideo_info *ovid = &vout->vid_info;
1087 struct omap_vout_buffer *buf, *tmp;
1088 u32 mask = 0;
1089 int j;
1090
1091 mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD
1092 | DISPC_IRQ_VSYNC2;
1093
1094 omap_dispc_unregister_isr(omap_vout_isr, vout, mask);
1095
1096 for (j = 0; j < ovid->num_overlays; j++) {
1097 struct omap_overlay *ovl = ovid->overlays[j];
1098 struct omap_dss_device *dssdev = ovl->get_device(ovl);
1099
1100 if (dssdev)
1101 ovl->disable(ovl);
1102 }
1103
1104 if (omapvid_apply_changes(vout))
1105 v4l2_err(&vout->vid_dev->v4l2_dev,
1106 "failed to change mode in streamoff\n");
1107
1108 if (vout->next_frm != vout->cur_frm)
1109 vb2_buffer_done(&vout->next_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
1110 vb2_buffer_done(&vout->cur_frm->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
1111 list_for_each_entry_safe(buf, tmp, &vout->dma_queue, queue) {
1112 list_del(&buf->queue);
1113 vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
1114 }
1115}
1116
1117static int vidioc_s_fbuf(struct file *file, void *fh,
1118 const struct v4l2_framebuffer *a)
1119{
1120 int enable = 0;
1121 struct omap_overlay *ovl;
1122 struct omapvideo_info *ovid;
1123 struct omap_vout_device *vout = video_drvdata(file);
1124 struct omap_overlay_manager_info info;
1125 enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1126
1127 ovid = &vout->vid_info;
1128 ovl = ovid->overlays[0];
1129
1130
1131
1132 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) &&
1133 (a->flags & V4L2_FBUF_FLAG_CHROMAKEY))
1134 return -EINVAL;
1135
1136
1137 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) &&
1138 (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA))
1139 return -EINVAL;
1140
1141 if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) {
1142 vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1143 key_type = OMAP_DSS_COLOR_KEY_VID_SRC;
1144 } else
1145 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1146
1147 if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) {
1148 vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1149 key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
1150 } else
1151 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY;
1152
1153 if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY |
1154 V4L2_FBUF_FLAG_SRC_CHROMAKEY))
1155 enable = 1;
1156 else
1157 enable = 0;
1158 if (ovl->manager && ovl->manager->get_manager_info &&
1159 ovl->manager->set_manager_info) {
1160
1161 ovl->manager->get_manager_info(ovl->manager, &info);
1162 info.trans_enabled = enable;
1163 info.trans_key_type = key_type;
1164 info.trans_key = vout->win.chromakey;
1165
1166 if (ovl->manager->set_manager_info(ovl->manager, &info))
1167 return -EINVAL;
1168 }
1169 if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) {
1170 vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1171 enable = 1;
1172 } else {
1173 vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA;
1174 enable = 0;
1175 }
1176 if (ovl->manager && ovl->manager->get_manager_info &&
1177 ovl->manager->set_manager_info) {
1178 ovl->manager->get_manager_info(ovl->manager, &info);
1179
1180 if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
1181 info.partial_alpha_enabled = enable;
1182 if (ovl->manager->set_manager_info(ovl->manager, &info))
1183 return -EINVAL;
1184 }
1185
1186 return 0;
1187}
1188
1189static int vidioc_g_fbuf(struct file *file, void *fh,
1190 struct v4l2_framebuffer *a)
1191{
1192 struct omap_overlay *ovl;
1193 struct omapvideo_info *ovid;
1194 struct omap_vout_device *vout = video_drvdata(file);
1195 struct omap_overlay_manager_info info;
1196 struct omap_video_timings *timing;
1197 struct omap_dss_device *dssdev;
1198
1199 ovid = &vout->vid_info;
1200 ovl = ovid->overlays[0];
1201
1202 dssdev = ovl->get_device(ovl);
1203
1204 if (!dssdev)
1205 return -EINVAL;
1206
1207 timing = &dssdev->panel.timings;
1208
1209 vout->fbuf.fmt.height = timing->y_res;
1210 vout->fbuf.fmt.width = timing->x_res;
1211 a->fmt.field = V4L2_FIELD_NONE;
1212 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1213 a->fmt.pixelformat = V4L2_PIX_FMT_RGBA32;
1214 a->fmt.height = vout->fbuf.fmt.height;
1215 a->fmt.width = vout->fbuf.fmt.width;
1216 a->fmt.bytesperline = vout->fbuf.fmt.width * 4;
1217 a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
1218 a->base = vout->fbuf.base;
1219
1220 a->flags = vout->fbuf.flags;
1221 a->capability = vout->fbuf.capability;
1222 a->flags &= ~(V4L2_FBUF_FLAG_SRC_CHROMAKEY | V4L2_FBUF_FLAG_CHROMAKEY |
1223 V4L2_FBUF_FLAG_LOCAL_ALPHA);
1224
1225 if (ovl->manager && ovl->manager->get_manager_info) {
1226 ovl->manager->get_manager_info(ovl->manager, &info);
1227 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC)
1228 a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1229 if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST)
1230 a->flags |= V4L2_FBUF_FLAG_CHROMAKEY;
1231 if (info.partial_alpha_enabled)
1232 a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
1233 }
1234
1235 return 0;
1236}
1237
1238static int vidioc_enum_output(struct file *file, void *priv_fh,
1239 struct v4l2_output *out)
1240{
1241 if (out->index)
1242 return -EINVAL;
1243 snprintf(out->name, sizeof(out->name), "Overlay");
1244 out->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
1245 return 0;
1246}
1247
1248static int vidioc_g_output(struct file *file, void *priv_fh, unsigned int *i)
1249{
1250 *i = 0;
1251 return 0;
1252}
1253
1254static int vidioc_s_output(struct file *file, void *priv_fh, unsigned int i)
1255{
1256 return i ? -EINVAL : 0;
1257}
1258
1259static const struct v4l2_ioctl_ops vout_ioctl_ops = {
1260 .vidioc_querycap = vidioc_querycap,
1261 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
1262 .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out,
1263 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
1264 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
1265 .vidioc_s_fbuf = vidioc_s_fbuf,
1266 .vidioc_g_fbuf = vidioc_g_fbuf,
1267 .vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_overlay,
1268 .vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_overlay,
1269 .vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_overlay,
1270 .vidioc_g_selection = vidioc_g_selection,
1271 .vidioc_s_selection = vidioc_s_selection,
1272 .vidioc_enum_output = vidioc_enum_output,
1273 .vidioc_g_output = vidioc_g_output,
1274 .vidioc_s_output = vidioc_s_output,
1275 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1276 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1277 .vidioc_querybuf = vb2_ioctl_querybuf,
1278 .vidioc_qbuf = vb2_ioctl_qbuf,
1279 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1280 .vidioc_expbuf = vb2_ioctl_expbuf,
1281 .vidioc_streamon = vb2_ioctl_streamon,
1282 .vidioc_streamoff = vb2_ioctl_streamoff,
1283 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1284 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1285};
1286
1287static const struct v4l2_file_operations omap_vout_fops = {
1288 .owner = THIS_MODULE,
1289 .unlocked_ioctl = video_ioctl2,
1290 .poll = vb2_fop_poll,
1291 .mmap = vb2_fop_mmap,
1292 .open = v4l2_fh_open,
1293 .release = vb2_fop_release,
1294};
1295
1296static const struct vb2_ops omap_vout_vb2_ops = {
1297 .queue_setup = omap_vout_vb2_queue_setup,
1298 .buf_queue = omap_vout_vb2_queue,
1299 .buf_prepare = omap_vout_vb2_prepare,
1300 .start_streaming = omap_vout_vb2_start_streaming,
1301 .stop_streaming = omap_vout_vb2_stop_streaming,
1302 .wait_prepare = vb2_ops_wait_prepare,
1303 .wait_finish = vb2_ops_wait_finish,
1304};
1305
1306
1307
1308static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
1309{
1310 struct video_device *vfd;
1311 struct v4l2_pix_format *pix;
1312 struct omap_overlay *ovl = vout->vid_info.overlays[0];
1313 struct omap_dss_device *display = ovl->get_device(ovl);
1314 struct v4l2_ctrl_handler *hdl;
1315 struct vb2_queue *vq;
1316 int ret;
1317
1318
1319 pix = &vout->pix;
1320
1321
1322 pix->width = QQVGA_WIDTH;
1323 pix->height = QQVGA_HEIGHT;
1324
1325
1326 pix->pixelformat = V4L2_PIX_FMT_RGB565;
1327 pix->field = V4L2_FIELD_NONE;
1328 pix->bytesperline = pix->width * 2;
1329 pix->sizeimage = pix->bytesperline * pix->height;
1330 pix->colorspace = V4L2_COLORSPACE_SRGB;
1331
1332 vout->bpp = RGB565_BPP;
1333 vout->fbuf.fmt.width = display->panel.timings.x_res;
1334 vout->fbuf.fmt.height = display->panel.timings.y_res;
1335 vout->cropped_offset = 0;
1336
1337
1338 vout->fbuf.flags = V4L2_FBUF_FLAG_OVERLAY;
1339 vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA |
1340 V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY |
1341 V4L2_FBUF_CAP_EXTERNOVERLAY;
1342 if (ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) {
1343 vout->win.global_alpha = 255;
1344 vout->fbuf.capability |= V4L2_FBUF_CAP_GLOBAL_ALPHA;
1345 vout->fbuf.flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;
1346 } else {
1347 vout->win.global_alpha = 0;
1348 }
1349 vout->win.field = V4L2_FIELD_NONE;
1350
1351 omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win);
1352
1353 hdl = &vout->ctrl_handler;
1354 v4l2_ctrl_handler_init(hdl, 3);
1355 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) {
1356 v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
1357 V4L2_CID_ROTATE, 0, 270, 90, 0);
1358 v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
1359 V4L2_CID_VFLIP, 0, 1, 1, 0);
1360 }
1361 v4l2_ctrl_new_std(hdl, &omap_vout_ctrl_ops,
1362 V4L2_CID_BG_COLOR, 0, 0xffffff, 1, 0);
1363 if (hdl->error)
1364 return hdl->error;
1365
1366 vout->rotation = 0;
1367 vout->mirror = false;
1368 INIT_LIST_HEAD(&vout->dma_queue);
1369 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1370 vout->vrfb_bpp = 2;
1371
1372
1373 vfd = vout->vfd = video_device_alloc();
1374
1375 if (!vfd) {
1376 printk(KERN_ERR VOUT_NAME
1377 ": could not allocate video device struct\n");
1378 v4l2_ctrl_handler_free(hdl);
1379 return -ENOMEM;
1380 }
1381 vfd->ctrl_handler = hdl;
1382 vfd->release = video_device_release;
1383 vfd->ioctl_ops = &vout_ioctl_ops;
1384
1385 strscpy(vfd->name, VOUT_NAME, sizeof(vfd->name));
1386
1387 vfd->fops = &omap_vout_fops;
1388 vfd->v4l2_dev = &vout->vid_dev->v4l2_dev;
1389 vfd->vfl_dir = VFL_DIR_TX;
1390 vfd->minor = -1;
1391 vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT |
1392 V4L2_CAP_VIDEO_OUTPUT_OVERLAY;
1393 mutex_init(&vout->lock);
1394
1395 vq = &vout->vq;
1396 vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1397 vq->io_modes = VB2_MMAP | VB2_DMABUF;
1398 vq->drv_priv = vout;
1399 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1400 vq->buf_struct_size = sizeof(struct omap_vout_buffer);
1401 vq->dev = vfd->v4l2_dev->dev;
1402
1403 vq->ops = &omap_vout_vb2_ops;
1404 vq->mem_ops = &vb2_dma_contig_memops;
1405 vq->lock = &vout->lock;
1406 vq->min_buffers_needed = 1;
1407 vfd->queue = vq;
1408
1409 ret = vb2_queue_init(vq);
1410 if (ret) {
1411 v4l2_ctrl_handler_free(hdl);
1412 video_device_release(vfd);
1413 }
1414 return ret;
1415}
1416
1417
1418static int __init omap_vout_setup_video_bufs(struct platform_device *pdev,
1419 int vid_num)
1420{
1421 struct omapvideo_info *ovid;
1422 struct omap_vout_device *vout;
1423 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1424 struct omap2video_device *vid_dev =
1425 container_of(v4l2_dev, struct omap2video_device, v4l2_dev);
1426 int ret = 0;
1427
1428 vout = vid_dev->vouts[vid_num];
1429 ovid = &vout->vid_info;
1430
1431 if (ovid->rotation_type == VOUT_ROT_VRFB) {
1432 bool static_vrfb_allocation = (vid_num == 0) ?
1433 vid1_static_vrfb_alloc : vid2_static_vrfb_alloc;
1434 ret = omap_vout_setup_vrfb_bufs(pdev, vid_num,
1435 static_vrfb_allocation);
1436 }
1437 return ret;
1438}
1439
1440
1441static int __init omap_vout_create_video_devices(struct platform_device *pdev)
1442{
1443 int ret = 0, k;
1444 struct omap_vout_device *vout;
1445 struct video_device *vfd = NULL;
1446 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1447 struct omap2video_device *vid_dev = container_of(v4l2_dev,
1448 struct omap2video_device, v4l2_dev);
1449 struct omap_overlay *ovl = vid_dev->overlays[0];
1450 struct omap_overlay_info info;
1451
1452 ovl->get_overlay_info(ovl, &info);
1453
1454 for (k = 0; k < pdev->num_resources; k++) {
1455
1456 vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
1457 if (!vout) {
1458 dev_err(&pdev->dev, ": could not allocate memory\n");
1459 return -ENOMEM;
1460 }
1461
1462 vout->vid = k;
1463 vid_dev->vouts[k] = vout;
1464 vout->vid_dev = vid_dev;
1465
1466 if (pdev->num_resources == 1)
1467 vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
1468 else
1469
1470 vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
1471 vout->vid_info.num_overlays = 1;
1472 vout->vid_info.id = k + 1;
1473 spin_lock_init(&vout->vbq_lock);
1474
1475
1476
1477
1478
1479
1480
1481 vout->fbuf.base = (void *)(uintptr_t)info.paddr;
1482
1483
1484 if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx())
1485 vout->vid_info.rotation_type = VOUT_ROT_VRFB;
1486
1487
1488
1489 if (omap_vout_setup_video_data(vout) != 0) {
1490 ret = -ENOMEM;
1491 goto error;
1492 }
1493
1494
1495
1496
1497 if (omap_vout_setup_video_bufs(pdev, k) != 0) {
1498 ret = -ENOMEM;
1499 goto error1;
1500 }
1501
1502
1503
1504 vfd = vout->vfd;
1505 if (video_register_device(vfd, VFL_TYPE_VIDEO, -1) < 0) {
1506 dev_err(&pdev->dev,
1507 ": Could not register Video for Linux device\n");
1508 vfd->minor = -1;
1509 ret = -ENODEV;
1510 goto error2;
1511 }
1512 video_set_drvdata(vfd, vout);
1513
1514 dev_info(&pdev->dev,
1515 ": registered and initialized video device %d\n",
1516 vfd->minor);
1517 if (k == (pdev->num_resources - 1))
1518 return 0;
1519
1520 continue;
1521error2:
1522 if (vout->vid_info.rotation_type == VOUT_ROT_VRFB)
1523 omap_vout_release_vrfb(vout);
1524error1:
1525 video_device_release(vfd);
1526error:
1527 kfree(vout);
1528 return ret;
1529 }
1530
1531 return -ENODEV;
1532}
1533
1534static void omap_vout_cleanup_device(struct omap_vout_device *vout)
1535{
1536 struct video_device *vfd;
1537 struct omapvideo_info *ovid;
1538
1539 if (!vout)
1540 return;
1541
1542 vfd = vout->vfd;
1543 ovid = &vout->vid_info;
1544 if (vfd) {
1545 if (!video_is_registered(vfd)) {
1546
1547
1548
1549
1550 video_device_release(vfd);
1551 } else {
1552
1553
1554
1555
1556 video_unregister_device(vfd);
1557 }
1558 }
1559 v4l2_ctrl_handler_free(&vout->ctrl_handler);
1560 if (ovid->rotation_type == VOUT_ROT_VRFB) {
1561 omap_vout_release_vrfb(vout);
1562
1563
1564
1565 if (vout->vrfb_static_allocation)
1566 omap_vout_free_vrfb_buffers(vout);
1567 }
1568
1569 kfree(vout);
1570}
1571
1572static int omap_vout_remove(struct platform_device *pdev)
1573{
1574 int k;
1575 struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
1576 struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
1577 omap2video_device, v4l2_dev);
1578
1579 v4l2_device_unregister(v4l2_dev);
1580 for (k = 0; k < pdev->num_resources; k++)
1581 omap_vout_cleanup_device(vid_dev->vouts[k]);
1582
1583 for (k = 0; k < vid_dev->num_displays; k++) {
1584 if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED)
1585 vid_dev->displays[k]->driver->disable(vid_dev->displays[k]);
1586
1587 omap_dss_put_device(vid_dev->displays[k]);
1588 }
1589 kfree(vid_dev);
1590 return 0;
1591}
1592
1593static int __init omap_vout_probe(struct platform_device *pdev)
1594{
1595 int ret = 0, i;
1596 struct omap_overlay *ovl;
1597 struct omap_dss_device *dssdev = NULL;
1598 struct omap_dss_device *def_display;
1599 struct omap2video_device *vid_dev = NULL;
1600
1601 if (omapdss_is_initialized() == false)
1602 return -EPROBE_DEFER;
1603
1604 ret = omapdss_compat_init();
1605 if (ret) {
1606 dev_err(&pdev->dev, "failed to init dss\n");
1607 return ret;
1608 }
1609
1610 if (pdev->num_resources == 0) {
1611 dev_err(&pdev->dev, "probed for an unknown device\n");
1612 ret = -ENODEV;
1613 goto err_dss_init;
1614 }
1615
1616 vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL);
1617 if (vid_dev == NULL) {
1618 ret = -ENOMEM;
1619 goto err_dss_init;
1620 }
1621
1622 vid_dev->num_displays = 0;
1623 for_each_dss_dev(dssdev) {
1624 omap_dss_get_device(dssdev);
1625
1626 if (!dssdev->driver) {
1627 dev_warn(&pdev->dev, "no driver for display: %s\n",
1628 dssdev->name);
1629 omap_dss_put_device(dssdev);
1630 continue;
1631 }
1632
1633 vid_dev->displays[vid_dev->num_displays++] = dssdev;
1634 }
1635
1636 if (vid_dev->num_displays == 0) {
1637 dev_err(&pdev->dev, "no displays\n");
1638 ret = -EINVAL;
1639 goto probe_err0;
1640 }
1641
1642 vid_dev->num_overlays = omap_dss_get_num_overlays();
1643 for (i = 0; i < vid_dev->num_overlays; i++)
1644 vid_dev->overlays[i] = omap_dss_get_overlay(i);
1645
1646 vid_dev->num_managers = omap_dss_get_num_overlay_managers();
1647 for (i = 0; i < vid_dev->num_managers; i++)
1648 vid_dev->managers[i] = omap_dss_get_overlay_manager(i);
1649
1650
1651
1652
1653 for (i = 1; i < vid_dev->num_overlays; i++) {
1654 ovl = omap_dss_get_overlay(i);
1655 dssdev = ovl->get_device(ovl);
1656
1657 if (dssdev) {
1658 def_display = dssdev;
1659 } else {
1660 dev_warn(&pdev->dev, "cannot find display\n");
1661 def_display = NULL;
1662 }
1663 if (def_display) {
1664 struct omap_dss_driver *dssdrv = def_display->driver;
1665
1666 ret = dssdrv->enable(def_display);
1667 if (ret) {
1668
1669
1670
1671
1672 dev_warn(&pdev->dev,
1673 "'%s' Display already enabled\n",
1674 def_display->name);
1675 }
1676 }
1677 }
1678
1679 if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) {
1680 dev_err(&pdev->dev, "v4l2_device_register failed\n");
1681 ret = -ENODEV;
1682 goto probe_err1;
1683 }
1684
1685 ret = omap_vout_create_video_devices(pdev);
1686 if (ret)
1687 goto probe_err2;
1688
1689 for (i = 0; i < vid_dev->num_displays; i++) {
1690 struct omap_dss_device *display = vid_dev->displays[i];
1691
1692 if (display->driver->update)
1693 display->driver->update(display, 0, 0,
1694 display->panel.timings.x_res,
1695 display->panel.timings.y_res);
1696 }
1697 return 0;
1698
1699probe_err2:
1700 v4l2_device_unregister(&vid_dev->v4l2_dev);
1701probe_err1:
1702 for (i = 1; i < vid_dev->num_overlays; i++) {
1703 def_display = NULL;
1704 ovl = omap_dss_get_overlay(i);
1705 dssdev = ovl->get_device(ovl);
1706
1707 if (dssdev)
1708 def_display = dssdev;
1709
1710 if (def_display && def_display->driver)
1711 def_display->driver->disable(def_display);
1712 }
1713probe_err0:
1714 kfree(vid_dev);
1715err_dss_init:
1716 omapdss_compat_uninit();
1717 return ret;
1718}
1719
1720static struct platform_driver omap_vout_driver = {
1721 .driver = {
1722 .name = VOUT_NAME,
1723 },
1724 .remove = omap_vout_remove,
1725};
1726
1727static int __init omap_vout_init(void)
1728{
1729 if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) {
1730 printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n");
1731 return -EINVAL;
1732 }
1733 return 0;
1734}
1735
1736static void omap_vout_cleanup(void)
1737{
1738 platform_driver_unregister(&omap_vout_driver);
1739}
1740
1741late_initcall(omap_vout_init);
1742module_exit(omap_vout_cleanup);
1743
