forked from bluecherrydvr/solo6x10
-
Notifications
You must be signed in to change notification settings - Fork 0
/
solo6010-v4l2-enc.c
1806 lines (1479 loc) · 44.1 KB
/
solo6010-v4l2-enc.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (C) 2011 Bluecherry, LLC www.bluecherrydvr.com
*
* Original author:
* Ben Collins <[email protected]>
*
* Additional work by:
* John Brooks <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-common.h>
#include <media/videobuf-dma-sg.h>
#include "solo6010.h"
#include "solo6010-tw28.h"
#include "solo6010-jpeg.h"
#define MIN_VID_BUFFERS 2
#define FRAME_BUF_SIZE (196 * 1024)
#define MP4_QS 16
#define DMA_ALIGN 4096
enum solo_enc_types {
SOLO_ENC_TYPE_STD,
SOLO_ENC_TYPE_EXT,
};
struct solo_enc_fh {
struct solo_enc_dev *enc;
u32 fmt;
u8 enc_on;
enum solo_enc_types type;
struct videobuf_queue vidq;
struct list_head vidq_active;
int desc_count;
int desc_nelts;
struct solo_p2m_desc *desc_items;
dma_addr_t desc_dma;
spinlock_t av_lock;
struct list_head list;
};
struct solo_videobuf {
struct videobuf_buffer vb;
unsigned int flags;
};
/* 6010 M4V */
static unsigned char vop_6010_ntsc_d1[] = {
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f,
};
static unsigned char vop_6010_ntsc_cif[] = {
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f,
};
static unsigned char vop_6010_pal_d1[] = {
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f,
};
static unsigned char vop_6010_pal_cif[] = {
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f,
};
/* 6110 h.264 */
static unsigned char vop_6110_ntsc_d1[] = {
0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00,
0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
};
static unsigned char vop_6110_ntsc_cif[] = {
0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00,
0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
};
static unsigned char vop_6110_pal_d1[] = {
0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00,
0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
};
static unsigned char vop_6110_pal_cif[] = {
0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00,
0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
};
static const u32 solo_user_ctrls[] = {
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,28)
V4L2_CID_SHARPNESS,
#endif
0
};
static const u32 solo_mpeg_ctrls[] = {
V4L2_CID_MPEG_VIDEO_ENCODING,
V4L2_CID_MPEG_VIDEO_GOP_SIZE,
0
};
static const u32 solo_private_ctrls[] = {
V4L2_CID_MOTION_ENABLE,
V4L2_CID_MOTION_THRESHOLD,
0
};
static const u32 solo_fmtx_ctrls[] = {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
V4L2_CID_RDS_TX_RADIO_TEXT,
#endif
0
};
static const u32 *solo_ctrl_classes[] = {
solo_user_ctrls,
solo_mpeg_ctrls,
solo_fmtx_ctrls,
solo_private_ctrls,
NULL
};
struct vop_header {
/* VE_STATUS0 */
u32 mpeg_size:20, sad_motion_flag:1, video_motion_flag:1, vop_type:2,
channel:5, source_fl:1, interlace:1, progressive:1;
/* VE_STATUS1 */
u32 vsize:8, hsize:8, last_queue:4, nop0:8, scale:4;
/* VE_STATUS2 */
u32 mpeg_off;
/* VE_STATUS3 */
u32 jpeg_off;
/* VE_STATUS4 */
u32 jpeg_size:20, interval:10, nop1:2;
/* VE_STATUS5/6 */
u32 sec, usec;
/* VE_STATUS7/8/9 */
u32 nop2[3];
/* VE_STATUS10 */
u32 mpeg_size_alt:20, nop3:12;
u32 end_nops[5];
} __attribute__((packed));
struct solo_enc_buf {
enum solo_enc_types type;
struct vop_header *vh;
int motion;
};
static int solo_is_motion_on(struct solo_enc_dev *solo_enc)
{
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
return (solo_dev->motion_mask >> solo_enc->ch) & 1;
}
static int solo_motion_detected(struct solo_enc_dev *solo_enc)
{
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
unsigned long flags;
u32 ch_mask = 1 << solo_enc->ch;
int ret = 0;
spin_lock_irqsave(&solo_enc->motion_lock, flags);
if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) {
solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask);
ret = 1;
}
spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
return ret;
}
static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on)
{
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
u32 mask = 1 << solo_enc->ch;
unsigned long flags;
spin_lock_irqsave(&solo_enc->motion_lock, flags);
if (on)
solo_dev->motion_mask |= mask;
else
solo_dev->motion_mask &= ~mask;
solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask);
solo_reg_write(solo_dev, SOLO_VI_MOT_ADR,
SOLO_VI_MOTION_EN(solo_dev->motion_mask) |
(SOLO_MOTION_EXT_ADDR(solo_dev) >> 16));
spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
}
/* MUST be called with solo_enc->enable_lock held */
static void solo_update_mode(struct solo_enc_dev *solo_enc)
{
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
int vop_len;
unsigned char *vop;
solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0;
solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1);
if (solo_enc->mode == SOLO_ENC_MODE_CIF) {
solo_enc->width = solo_dev->video_hsize >> 1;
solo_enc->height = solo_dev->video_vsize;
if (solo_dev->type == SOLO_DEV_6110) {
if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
vop = vop_6110_ntsc_cif;
vop_len = sizeof(vop_6110_ntsc_cif);
} else {
vop = vop_6110_pal_cif;
vop_len = sizeof(vop_6110_pal_cif);
}
} else {
if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
vop = vop_6010_ntsc_cif;
vop_len = sizeof(vop_6010_ntsc_cif);
} else {
vop = vop_6010_pal_cif;
vop_len = sizeof(vop_6010_pal_cif);
}
}
} else {
solo_enc->width = solo_dev->video_hsize;
solo_enc->height = solo_dev->video_vsize << 1;
solo_enc->bw_weight <<= 2;
if (solo_dev->type == SOLO_DEV_6110) {
if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
vop = vop_6110_ntsc_d1;
vop_len = sizeof(vop_6110_ntsc_d1);
} else {
vop = vop_6110_pal_d1;
vop_len = sizeof(vop_6110_pal_d1);
}
} else {
if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
vop = vop_6010_ntsc_d1;
vop_len = sizeof(vop_6010_ntsc_d1);
} else {
vop = vop_6010_pal_d1;
vop_len = sizeof(vop_6010_pal_d1);
}
}
}
memcpy(solo_enc->vop, vop, vop_len);
/* Some fixups for 6010/M4V */
if (solo_dev->type == SOLO_DEV_6010) {
u16 fps = solo_dev->fps * 1000;
u16 interval = solo_enc->interval * 1000;
vop = solo_enc->vop;
/* Frame rate and interval */
vop[22] = fps >> 4;
vop[23] = ((fps << 4) & 0xf0) | 0x0c
| ((interval >> 13) & 0x3);
vop[24] = (interval >> 5) & 0xff;
vop[25] = ((interval << 3) & 0xf8) | 0x04;
}
solo_enc->vop_len = vop_len;
/* Now handle the jpeg header */
vop = solo_enc->jpeg_header;
vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8);
vop[SOF0_START + 6] = 0xff & solo_enc->height;
vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8);
vop[SOF0_START + 8] = 0xff & solo_enc->width;
memcpy(vop + DQT_START,
jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN);
}
/* MUST be called with solo_enc->enable_lock held */
static int __solo_enc_on(struct solo_enc_fh *fh)
{
struct solo_enc_dev *solo_enc = fh->enc;
u8 ch = solo_enc->ch;
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
u8 interval;
BUG_ON(!mutex_is_locked(&solo_enc->enable_lock));
if (fh->enc_on)
return 0;
solo_update_mode(solo_enc);
/* Make sure to bw check on first reader */
if (!atomic_read(&solo_enc->readers)) {
if (solo_enc->bw_weight > solo_dev->enc_bw_remain)
return -EBUSY;
else
solo_dev->enc_bw_remain -= solo_enc->bw_weight;
}
fh->enc_on = 1;
list_add(&fh->list, &solo_enc->listeners);
if (fh->type == SOLO_ENC_TYPE_EXT)
solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
/* Reset the encoder if we are the first mpeg reader, else only reset
* on the first mjpeg reader. */
if (fh->fmt == V4L2_PIX_FMT_MPEG) {
atomic_inc(&solo_enc->readers);
if (atomic_inc_return(&solo_enc->mpeg_readers) > 1)
return 0;
} else if (atomic_inc_return(&solo_enc->readers) > 1) {
return 0;
}
/* Disable all encoding for this channel */
solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
/* Common for both std and ext encoding */
solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
solo_enc->interlaced ? 1 : 0);
if (solo_enc->interlaced)
interval = solo_enc->interval - 1;
else
interval = solo_enc->interval;
/* Standard encoding only */
solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
/* Extended encoding only */
solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
/* Enables the standard encoder */
solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
return 0;
}
static int solo_enc_on(struct solo_enc_fh *fh)
{
struct solo_enc_dev *solo_enc = fh->enc;
int ret;
mutex_lock(&solo_enc->enable_lock);
ret = __solo_enc_on(fh);
mutex_unlock(&solo_enc->enable_lock);
return ret;
}
static void __solo_enc_off(struct solo_enc_fh *fh)
{
struct solo_enc_dev *solo_enc = fh->enc;
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
BUG_ON(!mutex_is_locked(&solo_enc->enable_lock));
if (!fh->enc_on)
return;
list_del(&fh->list);
fh->enc_on = 0;
if (fh->fmt == V4L2_PIX_FMT_MPEG)
atomic_dec(&solo_enc->mpeg_readers);
if (atomic_dec_return(&solo_enc->readers) > 0)
return;
solo_dev->enc_bw_remain += solo_enc->bw_weight;
solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
}
static void solo_enc_off(struct solo_enc_fh *fh)
{
struct solo_enc_dev *solo_enc = fh->enc;
mutex_lock(&solo_enc->enable_lock);
__solo_enc_off(fh);
mutex_unlock(&solo_enc->enable_lock);
}
static int enc_get_mpeg_dma(struct solo6010_dev *solo_dev, dma_addr_t dma,
unsigned int off, unsigned int size)
{
int ret;
if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
return -EINVAL;
/* Single shot */
if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
return solo_p2m_dma_t(solo_dev, 0, dma,
SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
0, 0);
}
/* Buffer wrap */
ret = solo_p2m_dma_t(solo_dev, 0, dma,
SOLO_MP4E_EXT_ADDR(solo_dev) + off,
SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
if (!ret) {
ret = solo_p2m_dma_t(solo_dev, 0,
dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
SOLO_MP4E_EXT_ADDR(solo_dev),
size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
}
return ret;
}
/* Build a descriptor queue out of an SG list and send it to the P2M for
* processing. */
static int solo_send_desc(struct solo_enc_fh *fh, int skip,
struct videobuf_dmabuf *vbuf, int off, int size,
unsigned int base, unsigned int base_size)
{
struct solo6010_dev *solo_dev = fh->enc->solo_dev;
struct scatterlist *sg;
int i;
int ret;
if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
return -EINVAL;
fh->desc_count = 1;
for_each_sg(vbuf->sglist, sg, vbuf->sglen, i) {
struct solo_p2m_desc *desc;
dma_addr_t dma;
int len;
int left = base_size - off;
desc = &fh->desc_items[fh->desc_count++];
dma = sg_dma_address(sg);
len = sg_dma_len(sg);
/* We assume this is smaller than the scatter size */
BUG_ON(skip >= len);
if (skip) {
len -= skip;
dma += skip;
size -= skip;
skip = 0;
}
len = min(len, size);
if (len <= left) {
/* Single descriptor */
solo_p2m_fill_desc(desc, 0, dma, base + off,
len, 0, 0);
} else {
/* Buffer wrap */
/* XXX: Do these as separate DMA requests, to avoid
timeout errors triggered by awkwardly sized
descriptors. See
<https://github.com/bluecherrydvr/solo6x10/issues/8>
*/
ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
left, 0, 0);
if (ret)
return ret;
ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
len - left, 0, 0);
if (ret)
return ret;
fh->desc_count--;
}
size -= len;
if (size <= 0)
break;
off += len;
if (off >= base_size)
off -= base_size;
/* Because we may use two descriptors per loop */
if (fh->desc_count >= (fh->desc_nelts - 1)) {
ret = solo_p2m_dma_desc(solo_dev, fh->desc_items,
fh->desc_dma,
fh->desc_count - 1);
if (ret)
return ret;
fh->desc_count = 1;
}
}
if (fh->desc_count <= 1)
return 0;
return solo_p2m_dma_desc(solo_dev, fh->desc_items, fh->desc_dma,
fh->desc_count - 1);
}
static int solo_fill_jpeg(struct solo_enc_fh *fh, struct videobuf_buffer *vb,
struct videobuf_dmabuf *vbuf, struct vop_header *vh)
{
struct solo_enc_dev *solo_enc = fh->enc;
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
struct solo_videobuf *svb = (struct solo_videobuf *)vb;
int frame_size;
svb->flags |= V4L2_BUF_FLAG_KEYFRAME;
if (vb->bsize < (vh->jpeg_size + solo_enc->jpeg_len))
return -EIO;
vb->width = solo_enc->width;
vb->height = solo_enc->height;
vb->size = vh->jpeg_size + solo_enc->jpeg_len;
sg_copy_from_buffer(vbuf->sglist, vbuf->sglen,
solo_enc->jpeg_header,
solo_enc->jpeg_len);
frame_size = (vh->jpeg_size + solo_enc->jpeg_len + (DMA_ALIGN - 1))
& ~(DMA_ALIGN - 1);
return solo_send_desc(fh, solo_enc->jpeg_len, vbuf, vh->jpeg_off,
frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
SOLO_JPEG_EXT_SIZE(solo_dev));
}
static int solo_fill_mpeg(struct solo_enc_fh *fh, struct videobuf_buffer *vb,
struct videobuf_dmabuf *vbuf, struct vop_header *vh)
{
struct solo_enc_dev *solo_enc = fh->enc;
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
struct solo_videobuf *svb = (struct solo_videobuf *)vb;
int frame_off, frame_size;
int skip = 0;
if (vb->bsize < vh->mpeg_size)
return -EIO;
vb->width = vh->hsize << 4;
vb->height = vh->vsize << 4;
vb->size = vh->mpeg_size;
/* If this is a key frame, add extra header */
if (!vh->vop_type) {
sg_copy_from_buffer(vbuf->sglist, vbuf->sglen,
solo_enc->vop,
solo_enc->vop_len);
skip = solo_enc->vop_len;
vb->size += solo_enc->vop_len;
svb->flags |= V4L2_BUF_FLAG_KEYFRAME;
} else {
svb->flags |= V4L2_BUF_FLAG_PFRAME;
}
/* Now get the actual mpeg payload */
frame_off = (vh->mpeg_off + sizeof(*vh))
% SOLO_MP4E_EXT_SIZE(solo_dev);
frame_size = (vh->mpeg_size + skip + (DMA_ALIGN - 1))
& ~(DMA_ALIGN - 1);
return solo_send_desc(fh, skip, vbuf, frame_off, frame_size,
SOLO_MP4E_EXT_ADDR(solo_dev),
SOLO_MP4E_EXT_SIZE(solo_dev));
}
static int solo_enc_fillbuf(struct solo_enc_fh *fh,
struct videobuf_buffer *vb,
struct solo_enc_buf *enc_buf)
{
struct solo_enc_dev *solo_enc = fh->enc;
struct solo_videobuf *svb = (struct solo_videobuf *)vb;
struct videobuf_dmabuf *vbuf = NULL;
struct vop_header *vh = enc_buf->vh;
int ret;
if (WARN_ON_ONCE(!(vbuf = videobuf_to_dma(vb)))) {
ret = -EIO;
goto vbuf_error;
}
/* Setup some common flags for both types */
svb->flags = V4L2_BUF_FLAG_TIMECODE;
vb->ts.tv_sec = vh->sec;
vb->ts.tv_usec = vh->usec;
/* Check for motion flags */
if (solo_is_motion_on(solo_enc)) {
svb->flags |= V4L2_BUF_FLAG_MOTION_ON;
if (enc_buf->motion)
svb->flags |= V4L2_BUF_FLAG_MOTION_DETECTED;
}
if (fh->fmt == V4L2_PIX_FMT_MPEG)
ret = solo_fill_mpeg(fh, vb, vbuf, vh);
else
ret = solo_fill_jpeg(fh, vb, vbuf, vh);
vbuf_error:
/* On error, we push this buffer back into the queue. The
* videobuf-core doesn't handle error packets very well. Plus
* we recover nicely internally anyway. */
if (ret) {
unsigned long flags;
spin_lock_irqsave(&fh->av_lock, flags);
list_add(&vb->queue, &fh->vidq_active);
vb->state = VIDEOBUF_QUEUED;
spin_unlock_irqrestore(&fh->av_lock, flags);
} else {
vb->state = VIDEOBUF_DONE;
vb->field_count++;
vb->width = solo_enc->width;
vb->height = solo_enc->height;
wake_up(&vb->done);
}
return ret;
}
static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
struct solo_enc_buf *enc_buf)
{
struct solo_enc_fh *fh;
mutex_lock(&solo_enc->enable_lock);
list_for_each_entry(fh, &solo_enc->listeners, list) {
struct videobuf_buffer *vb;
unsigned long flags;
if (fh->type != enc_buf->type)
continue;
if (list_empty(&fh->vidq_active))
continue;
spin_lock_irqsave(&fh->av_lock, flags);
vb = list_first_entry(&fh->vidq_active,
struct videobuf_buffer, queue);
list_del(&vb->queue);
vb->state = VIDEOBUF_ACTIVE;
spin_unlock_irqrestore(&fh->av_lock, flags);
solo_enc_fillbuf(fh, vb, enc_buf);
}
mutex_unlock(&solo_enc->enable_lock);
}
void solo_enc_v4l2_isr(struct solo6010_dev *solo_dev)
{
wake_up_interruptible_all(&solo_dev->ring_thread_wait);
}
static void solo_handle_ring(struct solo6010_dev *solo_dev)
{
for (;;) {
struct solo_enc_dev *solo_enc;
struct solo_enc_buf enc_buf;
u32 mpeg_current, off;
u8 ch;
u8 cur_q;
/* Check if the hardware has any new ones in the queue */
cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
if (cur_q == solo_dev->enc_idx)
break;
mpeg_current = solo_reg_read(solo_dev,
SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
ch = (mpeg_current >> 24) & 0x1f;
off = mpeg_current & 0x00ffffff;
if (ch >= SOLO_MAX_CHANNELS) {
ch -= SOLO_MAX_CHANNELS;
enc_buf.type = SOLO_ENC_TYPE_EXT;
} else
enc_buf.type = SOLO_ENC_TYPE_STD;
solo_enc = solo_dev->v4l2_enc[ch];
if (solo_enc == NULL) {
dev_err(&solo_dev->pdev->dev,
"Got spurious packet for channel %d\n", ch);
continue;
}
/* FAIL... */
if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
sizeof(struct vop_header)))
continue;
enc_buf.vh = (struct vop_header *)solo_dev->vh_buf;
enc_buf.vh->mpeg_off -= SOLO_MP4E_EXT_ADDR(solo_dev);
enc_buf.vh->jpeg_off -= SOLO_JPEG_EXT_ADDR(solo_dev);
/* Sanity check */
if (enc_buf.vh->mpeg_off != off)
continue;
if (solo_motion_detected(solo_enc))
enc_buf.motion = 1;
else
enc_buf.motion = 0;
solo_enc_handle_one(solo_enc, &enc_buf);
}
}
static int solo_ring_thread(void *data)
{
struct solo6010_dev *solo_dev = data;
DECLARE_WAITQUEUE(wait, current);
set_freezable();
add_wait_queue(&solo_dev->ring_thread_wait, &wait);
for (;;) {
long timeout = schedule_timeout_interruptible(HZ);
if (timeout == -ERESTARTSYS || kthread_should_stop())
break;
solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
solo_handle_ring(solo_dev);
solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
try_to_freeze();
}
remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
return 0;
}
static int solo_enc_buf_setup(struct videobuf_queue *vq, unsigned int *count,
unsigned int *size)
{
*size = FRAME_BUF_SIZE;
if (*count < MIN_VID_BUFFERS)
*count = MIN_VID_BUFFERS;
return 0;
}
static int solo_enc_buf_prepare(struct videobuf_queue *vq,
struct videobuf_buffer *vb,
enum v4l2_field field)
{
vb->size = FRAME_BUF_SIZE;
if (vb->baddr != 0 && vb->bsize < vb->size)
return -EINVAL;
/* This property only change when queue is idle */
vb->field = field;
if (vb->state == VIDEOBUF_NEEDS_INIT) {
int rc = videobuf_iolock(vq, vb, NULL);
if (rc < 0) {
struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
videobuf_dma_unmap(vq, dma);
#else
videobuf_dma_unmap(vq->dev, dma);
#endif
videobuf_dma_free(dma);
return rc;
}
}
vb->state = VIDEOBUF_PREPARED;
return 0;
}
static void solo_enc_buf_queue(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct solo_enc_fh *fh = vq->priv_data;
vb->state = VIDEOBUF_QUEUED;
list_add_tail(&vb->queue, &fh->vidq_active);
}
static void solo_enc_buf_release(struct videobuf_queue *vq,
struct videobuf_buffer *vb)
{
struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35)
videobuf_dma_unmap(vq, dma);
#else
videobuf_dma_unmap(vq->dev, dma);
#endif
videobuf_dma_free(dma);
vb->state = VIDEOBUF_NEEDS_INIT;
}
static struct videobuf_queue_ops solo_enc_video_qops = {
.buf_setup = solo_enc_buf_setup,
.buf_prepare = solo_enc_buf_prepare,
.buf_queue = solo_enc_buf_queue,
.buf_release = solo_enc_buf_release,
};
static unsigned int solo_enc_poll(struct file *file,
struct poll_table_struct *wait)
{
struct solo_enc_fh *fh = file->private_data;
return videobuf_poll_stream(file, &fh->vidq, wait);
}
static int solo_enc_mmap(struct file *file, struct vm_area_struct *vma)
{
struct solo_enc_fh *fh = file->private_data;
return videobuf_mmap_mapper(&fh->vidq, vma);
}
static int solo_ring_start(struct solo6010_dev *solo_dev)
{
if (atomic_inc_return(&solo_dev->enc_users) > 1)
return 0;
solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
SOLO6010_NAME "_ring");
if (IS_ERR(solo_dev->ring_thread)) {
int err = PTR_ERR(solo_dev->ring_thread);
solo_dev->ring_thread = NULL;
return err;
}
solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
return 0;
}
static void solo_ring_stop(struct solo6010_dev *solo_dev)
{
if (atomic_dec_return(&solo_dev->enc_users) > 0)
return;
if (solo_dev->ring_thread) {
kthread_stop(solo_dev->ring_thread);
solo_dev->ring_thread = NULL;
}
solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
}
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,28)
static int solo_enc_open(struct file *file)
#else
static int solo_enc_open(struct inode *ino, struct file *file)
#endif
{
struct solo_enc_dev *solo_enc = video_drvdata(file);
struct solo6010_dev *solo_dev = solo_enc->solo_dev;
struct solo_enc_fh *fh;
int ret;
ret = solo_ring_start(solo_dev);
if (ret)
return ret;
if ((fh = kzalloc(sizeof(*fh), GFP_KERNEL)) == NULL) {
solo_ring_stop(solo_dev);
return -ENOMEM;
}
fh->desc_nelts = 32;
fh->desc_items = pci_alloc_consistent(solo_dev->pdev,
sizeof(struct solo_p2m_desc) *
fh->desc_nelts, &fh->desc_dma);
if (fh->desc_items == NULL) {
kfree(fh);
solo_ring_stop(solo_dev);
return -ENOMEM;
}
fh->enc = solo_enc;
spin_lock_init(&fh->av_lock);
file->private_data = fh;
INIT_LIST_HEAD(&fh->vidq_active);
fh->fmt = V4L2_PIX_FMT_MPEG;
fh->type = SOLO_ENC_TYPE_STD;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,37)
videobuf_queue_sg_init(&fh->vidq, &solo_enc_video_qops,
&solo_dev->pdev->dev,
&fh->av_lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct solo_videobuf),
fh, NULL);
#else
videobuf_queue_sg_init(&fh->vidq, &solo_enc_video_qops,
&solo_dev->pdev->dev,
&fh->av_lock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct solo_videobuf), fh);
#endif
return 0;
}
static ssize_t solo_enc_read(struct file *file, char __user *data,
size_t count, loff_t *ppos)
{
struct solo_enc_fh *fh = file->private_data;
int ret;
/* Make sure the encoder is on */
ret = solo_enc_on(fh);
if (ret)
return ret;
return videobuf_read_stream(&fh->vidq, data, count, ppos, 0,
file->f_flags & O_NONBLOCK);
}
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,28)
static int solo_enc_release(struct file *file)
#else
static int solo_enc_release(struct inode *ino, struct file *file)
#endif
{
struct solo_enc_fh *fh = file->private_data;
struct solo6010_dev *solo_dev = fh->enc->solo_dev;
solo_enc_off(fh);
videobuf_stop(&fh->vidq);
videobuf_mmap_free(&fh->vidq);
pci_free_consistent(fh->enc->solo_dev->pdev,