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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / media / pci / solo6x10 / solo6x10-v4l2-enc.c
blob25f9f2ebff1da3ace2e4c1192ba83ec0fe66b2f3
1 /*
2 * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com>
3 *
4 * Original author:
5 * Ben Collins <bcollins@ubuntu.com>
6 *
7 * Additional work by:
8 * John Brooks <john.brooks@bluecherry.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 */
20
21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/kthread.h>
24 #include <linux/freezer.h>
25
26 #include <media/v4l2-ioctl.h>
27 #include <media/v4l2-common.h>
28 #include <media/v4l2-event.h>
29 #include <media/videobuf2-dma-sg.h>
30
31 #include "solo6x10.h"
32 #include "solo6x10-tw28.h"
33 #include "solo6x10-jpeg.h"
34
35 #define MIN_VID_BUFFERS 2
36 #define FRAME_BUF_SIZE (400 * 1024)
37 #define MP4_QS 16
38 #define DMA_ALIGN 4096
39
40 /* 6010 M4V */
41 static u8 vop_6010_ntsc_d1[] = {
42 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
43 0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
44 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
45 0x1f, 0x4c, 0x58, 0x10, 0xf0, 0x71, 0x18, 0x3f,
46 };
47
48 static u8 vop_6010_ntsc_cif[] = {
49 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
50 0x02, 0x48, 0x1d, 0xc0, 0x00, 0x40, 0x00, 0x40,
51 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
52 0x1f, 0x4c, 0x2c, 0x10, 0x78, 0x51, 0x18, 0x3f,
53 };
54
55 static u8 vop_6010_pal_d1[] = {
56 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
57 0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
58 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
59 0x1f, 0x4c, 0x58, 0x11, 0x20, 0x71, 0x18, 0x3f,
60 };
61
62 static u8 vop_6010_pal_cif[] = {
63 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x20,
64 0x02, 0x48, 0x15, 0xc0, 0x00, 0x40, 0x00, 0x40,
65 0x00, 0x40, 0x00, 0x80, 0x00, 0x97, 0x53, 0x04,
66 0x1f, 0x4c, 0x2c, 0x10, 0x90, 0x51, 0x18, 0x3f,
67 };
68
69 /* 6110 h.264 */
70 static u8 vop_6110_ntsc_d1[] = {
71 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
72 0x9a, 0x74, 0x05, 0x81, 0xec, 0x80, 0x00, 0x00,
73 0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
74 };
75
76 static u8 vop_6110_ntsc_cif[] = {
77 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
78 0x9a, 0x74, 0x0b, 0x0f, 0xc8, 0x00, 0x00, 0x00,
79 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
80 };
81
82 static u8 vop_6110_pal_d1[] = {
83 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
84 0x9a, 0x74, 0x05, 0x80, 0x93, 0x20, 0x00, 0x00,
85 0x00, 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00,
86 };
87
88 static u8 vop_6110_pal_cif[] = {
89 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0x00, 0x1e,
90 0x9a, 0x74, 0x0b, 0x04, 0xb2, 0x00, 0x00, 0x00,
91 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
92 };
93
94 typedef __le32 vop_header[16];
95
96 struct solo_enc_buf {
97 enum solo_enc_types type;
98 const vop_header *vh;
99 int motion;
100 };
101
102 static int solo_is_motion_on(struct solo_enc_dev *solo_enc)
103 {
104 struct solo_dev *solo_dev = solo_enc->solo_dev;
105
106 return (solo_dev->motion_mask >> solo_enc->ch) & 1;
107 }
108
109 static int solo_motion_detected(struct solo_enc_dev *solo_enc)
110 {
111 struct solo_dev *solo_dev = solo_enc->solo_dev;
112 unsigned long flags;
113 u32 ch_mask = 1 << solo_enc->ch;
114 int ret = 0;
115
116 spin_lock_irqsave(&solo_enc->motion_lock, flags);
117 if (solo_reg_read(solo_dev, SOLO_VI_MOT_STATUS) & ch_mask) {
118 solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, ch_mask);
119 ret = 1;
120 }
121 spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
122
123 return ret;
124 }
125
126 static void solo_motion_toggle(struct solo_enc_dev *solo_enc, int on)
127 {
128 struct solo_dev *solo_dev = solo_enc->solo_dev;
129 u32 mask = 1 << solo_enc->ch;
130 unsigned long flags;
131
132 spin_lock_irqsave(&solo_enc->motion_lock, flags);
133
134 if (on)
135 solo_dev->motion_mask |= mask;
136 else
137 solo_dev->motion_mask &= ~mask;
138
139 solo_reg_write(solo_dev, SOLO_VI_MOT_CLEAR, mask);
140
141 solo_reg_write(solo_dev, SOLO_VI_MOT_ADR,
142 SOLO_VI_MOTION_EN(solo_dev->motion_mask) |
143 (SOLO_MOTION_EXT_ADDR(solo_dev) >> 16));
144
145 spin_unlock_irqrestore(&solo_enc->motion_lock, flags);
146 }
147
148 void solo_update_mode(struct solo_enc_dev *solo_enc)
149 {
150 struct solo_dev *solo_dev = solo_enc->solo_dev;
151 int vop_len;
152 u8 *vop;
153
154 solo_enc->interlaced = (solo_enc->mode & 0x08) ? 1 : 0;
155 solo_enc->bw_weight = max(solo_dev->fps / solo_enc->interval, 1);
156
157 if (solo_enc->mode == SOLO_ENC_MODE_CIF) {
158 solo_enc->width = solo_dev->video_hsize >> 1;
159 solo_enc->height = solo_dev->video_vsize;
160 if (solo_dev->type == SOLO_DEV_6110) {
161 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
162 vop = vop_6110_ntsc_cif;
163 vop_len = sizeof(vop_6110_ntsc_cif);
164 } else {
165 vop = vop_6110_pal_cif;
166 vop_len = sizeof(vop_6110_pal_cif);
167 }
168 } else {
169 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
170 vop = vop_6010_ntsc_cif;
171 vop_len = sizeof(vop_6010_ntsc_cif);
172 } else {
173 vop = vop_6010_pal_cif;
174 vop_len = sizeof(vop_6010_pal_cif);
175 }
176 }
177 } else {
178 solo_enc->width = solo_dev->video_hsize;
179 solo_enc->height = solo_dev->video_vsize << 1;
180 solo_enc->bw_weight <<= 2;
181 if (solo_dev->type == SOLO_DEV_6110) {
182 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
183 vop = vop_6110_ntsc_d1;
184 vop_len = sizeof(vop_6110_ntsc_d1);
185 } else {
186 vop = vop_6110_pal_d1;
187 vop_len = sizeof(vop_6110_pal_d1);
188 }
189 } else {
190 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC) {
191 vop = vop_6010_ntsc_d1;
192 vop_len = sizeof(vop_6010_ntsc_d1);
193 } else {
194 vop = vop_6010_pal_d1;
195 vop_len = sizeof(vop_6010_pal_d1);
196 }
197 }
198 }
199
200 memcpy(solo_enc->vop, vop, vop_len);
201
202 /* Some fixups for 6010/M4V */
203 if (solo_dev->type == SOLO_DEV_6010) {
204 u16 fps = solo_dev->fps * 1000;
205 u16 interval = solo_enc->interval * 1000;
206
207 vop = solo_enc->vop;
208
209 /* Frame rate and interval */
210 vop[22] = fps >> 4;
211 vop[23] = ((fps << 4) & 0xf0) | 0x0c
212 | ((interval >> 13) & 0x3);
213 vop[24] = (interval >> 5) & 0xff;
214 vop[25] = ((interval << 3) & 0xf8) | 0x04;
215 }
216
217 solo_enc->vop_len = vop_len;
218
219 /* Now handle the jpeg header */
220 vop = solo_enc->jpeg_header;
221 vop[SOF0_START + 5] = 0xff & (solo_enc->height >> 8);
222 vop[SOF0_START + 6] = 0xff & solo_enc->height;
223 vop[SOF0_START + 7] = 0xff & (solo_enc->width >> 8);
224 vop[SOF0_START + 8] = 0xff & solo_enc->width;
225
226 memcpy(vop + DQT_START,
227 jpeg_dqt[solo_g_jpeg_qp(solo_dev, solo_enc->ch)], DQT_LEN);
228 }
229
230 static int solo_enc_on(struct solo_enc_dev *solo_enc)
231 {
232 u8 ch = solo_enc->ch;
233 struct solo_dev *solo_dev = solo_enc->solo_dev;
234 u8 interval;
235
236 solo_update_mode(solo_enc);
237
238 /* Make sure to do a bandwidth check */
239 if (solo_enc->bw_weight > solo_dev->enc_bw_remain)
240 return -EBUSY;
241 solo_enc->sequence = 0;
242 solo_dev->enc_bw_remain -= solo_enc->bw_weight;
243
244 if (solo_enc->type == SOLO_ENC_TYPE_EXT)
245 solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
246
247 /* Disable all encoding for this channel */
248 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
249
250 /* Common for both std and ext encoding */
251 solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
252 solo_enc->interlaced ? 1 : 0);
253
254 if (solo_enc->interlaced)
255 interval = solo_enc->interval - 1;
256 else
257 interval = solo_enc->interval;
258
259 /* Standard encoding only */
260 solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
261 solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
262 solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
263
264 /* Extended encoding only */
265 solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
266 solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
267 solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
268
269 /* Enables the standard encoder */
270 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
271
272 return 0;
273 }
274
275 static void solo_enc_off(struct solo_enc_dev *solo_enc)
276 {
277 struct solo_dev *solo_dev = solo_enc->solo_dev;
278
279 solo_dev->enc_bw_remain += solo_enc->bw_weight;
280
281 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
282 solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
283 }
284
285 static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
286 unsigned int off, unsigned int size)
287 {
288 int ret;
289
290 if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
291 return -EINVAL;
292
293 /* Single shot */
294 if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
295 return solo_p2m_dma_t(solo_dev, 0, dma,
296 SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
297 0, 0);
298 }
299
300 /* Buffer wrap */
301 ret = solo_p2m_dma_t(solo_dev, 0, dma,
302 SOLO_MP4E_EXT_ADDR(solo_dev) + off,
303 SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
304
305 if (!ret) {
306 ret = solo_p2m_dma_t(solo_dev, 0,
307 dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
308 SOLO_MP4E_EXT_ADDR(solo_dev),
309 size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
310 }
311
312 return ret;
313 }
314
315 /* Build a descriptor queue out of an SG list and send it to the P2M for
316 * processing. */
317 static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
318 struct sg_table *vbuf, int off, int size,
319 unsigned int base, unsigned int base_size)
320 {
321 struct solo_dev *solo_dev = solo_enc->solo_dev;
322 struct scatterlist *sg;
323 int i;
324 int ret;
325
326 if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
327 return -EINVAL;
328
329 solo_enc->desc_count = 1;
330
331 for_each_sg(vbuf->sgl, sg, vbuf->nents, i) {
332 struct solo_p2m_desc *desc;
333 dma_addr_t dma;
334 int len;
335 int left = base_size - off;
336
337 desc = &solo_enc->desc_items[solo_enc->desc_count++];
338 dma = sg_dma_address(sg);
339 len = sg_dma_len(sg);
340
341 /* We assume this is smaller than the scatter size */
342 BUG_ON(skip >= len);
343 if (skip) {
344 len -= skip;
345 dma += skip;
346 size -= skip;
347 skip = 0;
348 }
349
350 len = min(len, size);
351
352 if (len <= left) {
353 /* Single descriptor */
354 solo_p2m_fill_desc(desc, 0, dma, base + off,
355 len, 0, 0);
356 } else {
357 /* Buffer wrap */
358 /* XXX: Do these as separate DMA requests, to avoid
359 timeout errors triggered by awkwardly sized
360 descriptors. See
361 <https://github.com/bluecherrydvr/solo6x10/issues/8>
362 */
363 ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
364 left, 0, 0);
365 if (ret)
366 return ret;
367
368 ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
369 len - left, 0, 0);
370 if (ret)
371 return ret;
372
373 solo_enc->desc_count--;
374 }
375
376 size -= len;
377 if (size <= 0)
378 break;
379
380 off += len;
381 if (off >= base_size)
382 off -= base_size;
383
384 /* Because we may use two descriptors per loop */
385 if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) {
386 ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
387 solo_enc->desc_dma,
388 solo_enc->desc_count - 1);
389 if (ret)
390 return ret;
391 solo_enc->desc_count = 1;
392 }
393 }
394
395 if (solo_enc->desc_count <= 1)
396 return 0;
397
398 return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
399 solo_enc->desc_dma, solo_enc->desc_count - 1);
400 }
401
402 /* Extract values from VOP header - VE_STATUSxx */
403 static inline int vop_interlaced(const vop_header *vh)
404 {
405 return (__le32_to_cpu((*vh)[0]) >> 30) & 1;
406 }
407
408 static inline u8 vop_channel(const vop_header *vh)
409 {
410 return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F;
411 }
412
413 static inline u8 vop_type(const vop_header *vh)
414 {
415 return (__le32_to_cpu((*vh)[0]) >> 22) & 3;
416 }
417
418 static inline u32 vop_mpeg_size(const vop_header *vh)
419 {
420 return __le32_to_cpu((*vh)[0]) & 0xFFFFF;
421 }
422
423 static inline u8 vop_hsize(const vop_header *vh)
424 {
425 return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF;
426 }
427
428 static inline u8 vop_vsize(const vop_header *vh)
429 {
430 return __le32_to_cpu((*vh)[1]) & 0xFF;
431 }
432
433 static inline u32 vop_mpeg_offset(const vop_header *vh)
434 {
435 return __le32_to_cpu((*vh)[2]);
436 }
437
438 static inline u32 vop_jpeg_offset(const vop_header *vh)
439 {
440 return __le32_to_cpu((*vh)[3]);
441 }
442
443 static inline u32 vop_jpeg_size(const vop_header *vh)
444 {
445 return __le32_to_cpu((*vh)[4]) & 0xFFFFF;
446 }
447
448 static inline u32 vop_sec(const vop_header *vh)
449 {
450 return __le32_to_cpu((*vh)[5]);
451 }
452
453 static inline u32 vop_usec(const vop_header *vh)
454 {
455 return __le32_to_cpu((*vh)[6]);
456 }
457
458 static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
459 struct vb2_buffer *vb, const vop_header *vh)
460 {
461 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
462 struct solo_dev *solo_dev = solo_enc->solo_dev;
463 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
464 int frame_size;
465
466 vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
467
468 if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
469 return -EIO;
470
471 frame_size = ALIGN(vop_jpeg_size(vh) + solo_enc->jpeg_len, DMA_ALIGN);
472 vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
473
474 return solo_send_desc(solo_enc, solo_enc->jpeg_len, sgt,
475 vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev),
476 frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
477 SOLO_JPEG_EXT_SIZE(solo_dev));
478 }
479
480 static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
481 struct vb2_buffer *vb, const vop_header *vh)
482 {
483 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
484 struct solo_dev *solo_dev = solo_enc->solo_dev;
485 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
486 int frame_off, frame_size;
487 int skip = 0;
488
489 if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh))
490 return -EIO;
491
492 /* If this is a key frame, add extra header */
493 vbuf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME |
494 V4L2_BUF_FLAG_BFRAME);
495 if (!vop_type(vh)) {
496 skip = solo_enc->vop_len;
497 vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
498 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) +
499 solo_enc->vop_len);
500 } else {
501 vbuf->flags |= V4L2_BUF_FLAG_PFRAME;
502 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh));
503 }
504
505 /* Now get the actual mpeg payload */
506 frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) +
507 sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev);
508 frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN);
509
510 return solo_send_desc(solo_enc, skip, sgt, frame_off, frame_size,
511 SOLO_MP4E_EXT_ADDR(solo_dev),
512 SOLO_MP4E_EXT_SIZE(solo_dev));
513 }
514
515 static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
516 struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
517 {
518 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
519 const vop_header *vh = enc_buf->vh;
520 int ret;
521
522 switch (solo_enc->fmt) {
523 case V4L2_PIX_FMT_MPEG4:
524 case V4L2_PIX_FMT_H264:
525 ret = solo_fill_mpeg(solo_enc, vb, vh);
526 break;
527 default: /* V4L2_PIX_FMT_MJPEG */
528 ret = solo_fill_jpeg(solo_enc, vb, vh);
529 break;
530 }
531
532 if (!ret) {
533 vbuf->sequence = solo_enc->sequence++;
534 vb->timestamp = ktime_get_ns();
535
536 /* Check for motion flags */
537 if (solo_is_motion_on(solo_enc) && enc_buf->motion) {
538 struct v4l2_event ev = {
539 .type = V4L2_EVENT_MOTION_DET,
540 .u.motion_det = {
541 .flags
542 = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
543 .frame_sequence = vbuf->sequence,
544 .region_mask = enc_buf->motion ? 1 : 0,
545 },
546 };
547
548 v4l2_event_queue(solo_enc->vfd, &ev);
549 }
550 }
551
552 vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
553
554 return ret;
555 }
556
557 static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
558 struct solo_enc_buf *enc_buf)
559 {
560 struct solo_vb2_buf *vb;
561 unsigned long flags;
562
563 mutex_lock(&solo_enc->lock);
564 if (solo_enc->type != enc_buf->type)
565 goto unlock;
566
567 spin_lock_irqsave(&solo_enc->av_lock, flags);
568 if (list_empty(&solo_enc->vidq_active)) {
569 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
570 goto unlock;
571 }
572 vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf,
573 list);
574 list_del(&vb->list);
575 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
576
577 solo_enc_fillbuf(solo_enc, &vb->vb.vb2_buf, enc_buf);
578 unlock:
579 mutex_unlock(&solo_enc->lock);
580 }
581
582 void solo_enc_v4l2_isr(struct solo_dev *solo_dev)
583 {
584 wake_up_interruptible_all(&solo_dev->ring_thread_wait);
585 }
586
587 static void solo_handle_ring(struct solo_dev *solo_dev)
588 {
589 for (;;) {
590 struct solo_enc_dev *solo_enc;
591 struct solo_enc_buf enc_buf;
592 u32 mpeg_current, off;
593 u8 ch;
594 u8 cur_q;
595
596 /* Check if the hardware has any new ones in the queue */
597 cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
598 if (cur_q == solo_dev->enc_idx)
599 break;
600
601 mpeg_current = solo_reg_read(solo_dev,
602 SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
603 solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
604
605 ch = (mpeg_current >> 24) & 0x1f;
606 off = mpeg_current & 0x00ffffff;
607
608 if (ch >= SOLO_MAX_CHANNELS) {
609 ch -= SOLO_MAX_CHANNELS;
610 enc_buf.type = SOLO_ENC_TYPE_EXT;
611 } else
612 enc_buf.type = SOLO_ENC_TYPE_STD;
613
614 solo_enc = solo_dev->v4l2_enc[ch];
615 if (solo_enc == NULL) {
616 dev_err(&solo_dev->pdev->dev,
617 "Got spurious packet for channel %d\n", ch);
618 continue;
619 }
620
621 /* FAIL... */
622 if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
623 sizeof(vop_header)))
624 continue;
625
626 enc_buf.vh = solo_dev->vh_buf;
627
628 /* Sanity check */
629 if (vop_mpeg_offset(enc_buf.vh) !=
630 SOLO_MP4E_EXT_ADDR(solo_dev) + off)
631 continue;
632
633 if (solo_motion_detected(solo_enc))
634 enc_buf.motion = 1;
635 else
636 enc_buf.motion = 0;
637
638 solo_enc_handle_one(solo_enc, &enc_buf);
639 }
640 }
641
642 static int solo_ring_thread(void *data)
643 {
644 struct solo_dev *solo_dev = data;
645 DECLARE_WAITQUEUE(wait, current);
646
647 set_freezable();
648 add_wait_queue(&solo_dev->ring_thread_wait, &wait);
649
650 for (;;) {
651 long timeout = schedule_timeout_interruptible(HZ);
652
653 if (timeout == -ERESTARTSYS || kthread_should_stop())
654 break;
655 solo_handle_ring(solo_dev);
656 try_to_freeze();
657 }
658
659 remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
660
661 return 0;
662 }
663
664 static int solo_enc_queue_setup(struct vb2_queue *q,
665 unsigned int *num_buffers,
666 unsigned int *num_planes, unsigned int sizes[],
667 struct device *alloc_devs[])
668 {
669 sizes[0] = FRAME_BUF_SIZE;
670 *num_planes = 1;
671
672 if (*num_buffers < MIN_VID_BUFFERS)
673 *num_buffers = MIN_VID_BUFFERS;
674
675 return 0;
676 }
677
678 static void solo_enc_buf_queue(struct vb2_buffer *vb)
679 {
680 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
681 struct vb2_queue *vq = vb->vb2_queue;
682 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq);
683 struct solo_vb2_buf *solo_vb =
684 container_of(vbuf, struct solo_vb2_buf, vb);
685
686 spin_lock(&solo_enc->av_lock);
687 list_add_tail(&solo_vb->list, &solo_enc->vidq_active);
688 spin_unlock(&solo_enc->av_lock);
689 }
690
691 static int solo_ring_start(struct solo_dev *solo_dev)
692 {
693 solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
694 SOLO6X10_NAME "_ring");
695 if (IS_ERR(solo_dev->ring_thread)) {
696 int err = PTR_ERR(solo_dev->ring_thread);
697
698 solo_dev->ring_thread = NULL;
699 return err;
700 }
701
702 solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
703
704 return 0;
705 }
706
707 static void solo_ring_stop(struct solo_dev *solo_dev)
708 {
709 if (solo_dev->ring_thread) {
710 kthread_stop(solo_dev->ring_thread);
711 solo_dev->ring_thread = NULL;
712 }
713
714 solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
715 }
716
717 static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count)
718 {
719 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
720
721 return solo_enc_on(solo_enc);
722 }
723
724 static void solo_enc_stop_streaming(struct vb2_queue *q)
725 {
726 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
727 unsigned long flags;
728
729 spin_lock_irqsave(&solo_enc->av_lock, flags);
730 solo_enc_off(solo_enc);
731 while (!list_empty(&solo_enc->vidq_active)) {
732 struct solo_vb2_buf *buf = list_entry(
733 solo_enc->vidq_active.next,
734 struct solo_vb2_buf, list);
735
736 list_del(&buf->list);
737 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
738 }
739 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
740 }
741
742 static void solo_enc_buf_finish(struct vb2_buffer *vb)
743 {
744 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
745 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vb->vb2_queue);
746 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
747
748 switch (solo_enc->fmt) {
749 case V4L2_PIX_FMT_MPEG4:
750 case V4L2_PIX_FMT_H264:
751 if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME)
752 sg_copy_from_buffer(sgt->sgl, sgt->nents,
753 solo_enc->vop, solo_enc->vop_len);
754 break;
755 default: /* V4L2_PIX_FMT_MJPEG */
756 sg_copy_from_buffer(sgt->sgl, sgt->nents,
757 solo_enc->jpeg_header, solo_enc->jpeg_len);
758 break;
759 }
760 }
761
762 static const struct vb2_ops solo_enc_video_qops = {
763 .queue_setup = solo_enc_queue_setup,
764 .buf_queue = solo_enc_buf_queue,
765 .buf_finish = solo_enc_buf_finish,
766 .start_streaming = solo_enc_start_streaming,
767 .stop_streaming = solo_enc_stop_streaming,
768 .wait_prepare = vb2_ops_wait_prepare,
769 .wait_finish = vb2_ops_wait_finish,
770 };
771
772 static int solo_enc_querycap(struct file *file, void *priv,
773 struct v4l2_capability *cap)
774 {
775 struct solo_enc_dev *solo_enc = video_drvdata(file);
776 struct solo_dev *solo_dev = solo_enc->solo_dev;
777
778 strcpy(cap->driver, SOLO6X10_NAME);
779 snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d",
780 solo_enc->ch);
781 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
782 pci_name(solo_dev->pdev));
783 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
784 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
785 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
786 return 0;
787 }
788
789 static int solo_enc_enum_input(struct file *file, void *priv,
790 struct v4l2_input *input)
791 {
792 struct solo_enc_dev *solo_enc = video_drvdata(file);
793 struct solo_dev *solo_dev = solo_enc->solo_dev;
794
795 if (input->index)
796 return -EINVAL;
797
798 snprintf(input->name, sizeof(input->name), "Encoder %d",
799 solo_enc->ch + 1);
800 input->type = V4L2_INPUT_TYPE_CAMERA;
801 input->std = solo_enc->vfd->tvnorms;
802
803 if (!tw28_get_video_status(solo_dev, solo_enc->ch))
804 input->status = V4L2_IN_ST_NO_SIGNAL;
805
806 return 0;
807 }
808
809 static int solo_enc_set_input(struct file *file, void *priv,
810 unsigned int index)
811 {
812 if (index)
813 return -EINVAL;
814
815 return 0;
816 }
817
818 static int solo_enc_get_input(struct file *file, void *priv,
819 unsigned int *index)
820 {
821 *index = 0;
822
823 return 0;
824 }
825
826 static int solo_enc_enum_fmt_cap(struct file *file, void *priv,
827 struct v4l2_fmtdesc *f)
828 {
829 struct solo_enc_dev *solo_enc = video_drvdata(file);
830 int dev_type = solo_enc->solo_dev->type;
831
832 switch (f->index) {
833 case 0:
834 switch (dev_type) {
835 case SOLO_DEV_6010:
836 f->pixelformat = V4L2_PIX_FMT_MPEG4;
837 strcpy(f->description, "MPEG-4 part 2");
838 break;
839 case SOLO_DEV_6110:
840 f->pixelformat = V4L2_PIX_FMT_H264;
841 strcpy(f->description, "H.264");
842 break;
843 }
844 break;
845 case 1:
846 f->pixelformat = V4L2_PIX_FMT_MJPEG;
847 strcpy(f->description, "MJPEG");
848 break;
849 default:
850 return -EINVAL;
851 }
852
853 f->flags = V4L2_FMT_FLAG_COMPRESSED;
854
855 return 0;
856 }
857
858 static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type)
859 {
860 return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110)
861 || (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010)
862 || pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL;
863 }
864
865 static int solo_enc_try_fmt_cap(struct file *file, void *priv,
866 struct v4l2_format *f)
867 {
868 struct solo_enc_dev *solo_enc = video_drvdata(file);
869 struct solo_dev *solo_dev = solo_enc->solo_dev;
870 struct v4l2_pix_format *pix = &f->fmt.pix;
871
872 if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type))
873 return -EINVAL;
874
875 if (pix->width < solo_dev->video_hsize ||
876 pix->height < solo_dev->video_vsize << 1) {
877 /* Default to CIF 1/2 size */
878 pix->width = solo_dev->video_hsize >> 1;
879 pix->height = solo_dev->video_vsize;
880 } else {
881 /* Full frame */
882 pix->width = solo_dev->video_hsize;
883 pix->height = solo_dev->video_vsize << 1;
884 }
885
886 switch (pix->field) {
887 case V4L2_FIELD_NONE:
888 case V4L2_FIELD_INTERLACED:
889 break;
890 case V4L2_FIELD_ANY:
891 default:
892 pix->field = V4L2_FIELD_INTERLACED;
893 break;
894 }
895
896 /* Just set these */
897 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
898 pix->sizeimage = FRAME_BUF_SIZE;
899 pix->bytesperline = 0;
900 pix->priv = 0;
901
902 return 0;
903 }
904
905 static int solo_enc_set_fmt_cap(struct file *file, void *priv,
906 struct v4l2_format *f)
907 {
908 struct solo_enc_dev *solo_enc = video_drvdata(file);
909 struct solo_dev *solo_dev = solo_enc->solo_dev;
910 struct v4l2_pix_format *pix = &f->fmt.pix;
911 int ret;
912
913 if (vb2_is_busy(&solo_enc->vidq))
914 return -EBUSY;
915
916 ret = solo_enc_try_fmt_cap(file, priv, f);
917 if (ret)
918 return ret;
919
920 if (pix->width == solo_dev->video_hsize)
921 solo_enc->mode = SOLO_ENC_MODE_D1;
922 else
923 solo_enc->mode = SOLO_ENC_MODE_CIF;
924
925 /* This does not change the encoder at all */
926 solo_enc->fmt = pix->pixelformat;
927
928 /*
929 * More information is needed about these 'extended' types. As far
930 * as I can tell these are basically additional video streams with
931 * different MPEG encoding attributes that can run in parallel with
932 * the main stream. If so, then this should be implemented as a
933 * second video node. Abusing priv like this is certainly not the
934 * right approach.
935 if (pix->priv)
936 solo_enc->type = SOLO_ENC_TYPE_EXT;
937 */
938 solo_update_mode(solo_enc);
939 return 0;
940 }
941
942 static int solo_enc_get_fmt_cap(struct file *file, void *priv,
943 struct v4l2_format *f)
944 {
945 struct solo_enc_dev *solo_enc = video_drvdata(file);
946 struct v4l2_pix_format *pix = &f->fmt.pix;
947
948 pix->width = solo_enc->width;
949 pix->height = solo_enc->height;
950 pix->pixelformat = solo_enc->fmt;
951 pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED :
952 V4L2_FIELD_NONE;
953 pix->sizeimage = FRAME_BUF_SIZE;
954 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
955 pix->priv = 0;
956
957 return 0;
958 }
959
960 static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i)
961 {
962 struct solo_enc_dev *solo_enc = video_drvdata(file);
963 struct solo_dev *solo_dev = solo_enc->solo_dev;
964
965 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
966 *i = V4L2_STD_NTSC_M;
967 else
968 *i = V4L2_STD_PAL;
969 return 0;
970 }
971
972 static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std)
973 {
974 struct solo_enc_dev *solo_enc = video_drvdata(file);
975
976 return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_625_50);
977 }
978
979 static int solo_enum_framesizes(struct file *file, void *priv,
980 struct v4l2_frmsizeenum *fsize)
981 {
982 struct solo_enc_dev *solo_enc = video_drvdata(file);
983 struct solo_dev *solo_dev = solo_enc->solo_dev;
984
985 if (solo_valid_pixfmt(fsize->pixel_format, solo_dev->type))
986 return -EINVAL;
987
988 switch (fsize->index) {
989 case 0:
990 fsize->discrete.width = solo_dev->video_hsize >> 1;
991 fsize->discrete.height = solo_dev->video_vsize;
992 break;
993 case 1:
994 fsize->discrete.width = solo_dev->video_hsize;
995 fsize->discrete.height = solo_dev->video_vsize << 1;
996 break;
997 default:
998 return -EINVAL;
999 }
1000
1001 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1002
1003 return 0;
1004 }
1005
1006 static int solo_enum_frameintervals(struct file *file, void *priv,
1007 struct v4l2_frmivalenum *fintv)
1008 {
1009 struct solo_enc_dev *solo_enc = video_drvdata(file);
1010 struct solo_dev *solo_dev = solo_enc->solo_dev;
1011
1012 if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type))
1013 return -EINVAL;
1014 if (fintv->index)
1015 return -EINVAL;
1016 if ((fintv->width != solo_dev->video_hsize >> 1 ||
1017 fintv->height != solo_dev->video_vsize) &&
1018 (fintv->width != solo_dev->video_hsize ||
1019 fintv->height != solo_dev->video_vsize << 1))
1020 return -EINVAL;
1021
1022 fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
1023
1024 fintv->stepwise.min.numerator = 1;
1025 fintv->stepwise.min.denominator = solo_dev->fps;
1026
1027 fintv->stepwise.max.numerator = 15;
1028 fintv->stepwise.max.denominator = solo_dev->fps;
1029
1030 fintv->stepwise.step.numerator = 1;
1031 fintv->stepwise.step.denominator = solo_dev->fps;
1032
1033 return 0;
1034 }
1035
1036 static int solo_g_parm(struct file *file, void *priv,
1037 struct v4l2_streamparm *sp)
1038 {
1039 struct solo_enc_dev *solo_enc = video_drvdata(file);
1040 struct v4l2_captureparm *cp = &sp->parm.capture;
1041
1042 cp->capability = V4L2_CAP_TIMEPERFRAME;
1043 cp->timeperframe.numerator = solo_enc->interval;
1044 cp->timeperframe.denominator = solo_enc->solo_dev->fps;
1045 cp->capturemode = 0;
1046 /* XXX: Shouldn't we be able to get/set this from videobuf? */
1047 cp->readbuffers = 2;
1048
1049 return 0;
1050 }
1051
1052 static inline int calc_interval(u8 fps, u32 n, u32 d)
1053 {
1054 if (!n || !d)
1055 return 1;
1056 if (d == fps)
1057 return n;
1058 n *= fps;
1059 return min(15U, n / d + (n % d >= (fps >> 1)));
1060 }
1061
1062 static int solo_s_parm(struct file *file, void *priv,
1063 struct v4l2_streamparm *sp)
1064 {
1065 struct solo_enc_dev *solo_enc = video_drvdata(file);
1066 struct v4l2_fract *t = &sp->parm.capture.timeperframe;
1067 u8 fps = solo_enc->solo_dev->fps;
1068
1069 if (vb2_is_streaming(&solo_enc->vidq))
1070 return -EBUSY;
1071
1072 solo_enc->interval = calc_interval(fps, t->numerator, t->denominator);
1073 solo_update_mode(solo_enc);
1074 return solo_g_parm(file, priv, sp);
1075 }
1076
1077 static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
1078 {
1079 struct solo_enc_dev *solo_enc =
1080 container_of(ctrl->handler, struct solo_enc_dev, hdl);
1081 struct solo_dev *solo_dev = solo_enc->solo_dev;
1082 int err;
1083
1084 switch (ctrl->id) {
1085 case V4L2_CID_BRIGHTNESS:
1086 case V4L2_CID_CONTRAST:
1087 case V4L2_CID_SATURATION:
1088 case V4L2_CID_HUE:
1089 case V4L2_CID_SHARPNESS:
1090 return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch,
1091 ctrl->val);
1092 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1093 solo_enc->gop = ctrl->val;
1094 solo_reg_write(solo_dev, SOLO_VE_CH_GOP(solo_enc->ch), solo_enc->gop);
1095 solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(solo_enc->ch), solo_enc->gop);
1096 return 0;
1097 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1098 solo_enc->qp = ctrl->val;
1099 solo_reg_write(solo_dev, SOLO_VE_CH_QP(solo_enc->ch), solo_enc->qp);
1100 solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(solo_enc->ch), solo_enc->qp);
1101 return 0;
1102 case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
1103 solo_enc->motion_thresh = ctrl->val << 8;
1104 if (!solo_enc->motion_global || !solo_enc->motion_enabled)
1105 return 0;
1106 return solo_set_motion_threshold(solo_dev, solo_enc->ch,
1107 solo_enc->motion_thresh);
1108 case V4L2_CID_DETECT_MD_MODE:
1109 solo_enc->motion_global = ctrl->val == V4L2_DETECT_MD_MODE_GLOBAL;
1110 solo_enc->motion_enabled = ctrl->val > V4L2_DETECT_MD_MODE_DISABLED;
1111 if (ctrl->val) {
1112 if (solo_enc->motion_global)
1113 err = solo_set_motion_threshold(solo_dev, solo_enc->ch,
1114 solo_enc->motion_thresh);
1115 else
1116 err = solo_set_motion_block(solo_dev, solo_enc->ch,
1117 solo_enc->md_thresholds->p_cur.p_u16);
1118 if (err)
1119 return err;
1120 }
1121 solo_motion_toggle(solo_enc, ctrl->val);
1122 return 0;
1123 case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
1124 if (solo_enc->motion_enabled && !solo_enc->motion_global)
1125 return solo_set_motion_block(solo_dev, solo_enc->ch,
1126 solo_enc->md_thresholds->p_new.p_u16);
1127 break;
1128 case V4L2_CID_OSD_TEXT:
1129 strcpy(solo_enc->osd_text, ctrl->p_new.p_char);
1130 return solo_osd_print(solo_enc);
1131 default:
1132 return -EINVAL;
1133 }
1134
1135 return 0;
1136 }
1137
1138 static int solo_subscribe_event(struct v4l2_fh *fh,
1139 const struct v4l2_event_subscription *sub)
1140 {
1141
1142 switch (sub->type) {
1143 case V4L2_EVENT_MOTION_DET:
1144 /* Allow for up to 30 events (1 second for NTSC) to be
1145 * stored. */
1146 return v4l2_event_subscribe(fh, sub, 30, NULL);
1147 default:
1148 return v4l2_ctrl_subscribe_event(fh, sub);
1149 }
1150 }
1151
1152 static const struct v4l2_file_operations solo_enc_fops = {
1153 .owner = THIS_MODULE,
1154 .open = v4l2_fh_open,
1155 .release = vb2_fop_release,
1156 .read = vb2_fop_read,
1157 .poll = vb2_fop_poll,
1158 .mmap = vb2_fop_mmap,
1159 .unlocked_ioctl = video_ioctl2,
1160 };
1161
1162 static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = {
1163 .vidioc_querycap = solo_enc_querycap,
1164 .vidioc_s_std = solo_enc_s_std,
1165 .vidioc_g_std = solo_enc_g_std,
1166 /* Input callbacks */
1167 .vidioc_enum_input = solo_enc_enum_input,
1168 .vidioc_s_input = solo_enc_set_input,
1169 .vidioc_g_input = solo_enc_get_input,
1170 /* Video capture format callbacks */
1171 .vidioc_enum_fmt_vid_cap = solo_enc_enum_fmt_cap,
1172 .vidioc_try_fmt_vid_cap = solo_enc_try_fmt_cap,
1173 .vidioc_s_fmt_vid_cap = solo_enc_set_fmt_cap,
1174 .vidioc_g_fmt_vid_cap = solo_enc_get_fmt_cap,
1175 /* Streaming I/O */
1176 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1177 .vidioc_querybuf = vb2_ioctl_querybuf,
1178 .vidioc_qbuf = vb2_ioctl_qbuf,
1179 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1180 .vidioc_streamon = vb2_ioctl_streamon,
1181 .vidioc_streamoff = vb2_ioctl_streamoff,
1182 /* Frame size and interval */
1183 .vidioc_enum_framesizes = solo_enum_framesizes,
1184 .vidioc_enum_frameintervals = solo_enum_frameintervals,
1185 /* Video capture parameters */
1186 .vidioc_s_parm = solo_s_parm,
1187 .vidioc_g_parm = solo_g_parm,
1188 /* Logging and events */
1189 .vidioc_log_status = v4l2_ctrl_log_status,
1190 .vidioc_subscribe_event = solo_subscribe_event,
1191 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1192 };
1193
1194 static const struct video_device solo_enc_template = {
1195 .name = SOLO6X10_NAME,
1196 .fops = &solo_enc_fops,
1197 .ioctl_ops = &solo_enc_ioctl_ops,
1198 .minor = -1,
1199 .release = video_device_release,
1200 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL,
1201 };
1202
1203 static const struct v4l2_ctrl_ops solo_ctrl_ops = {
1204 .s_ctrl = solo_s_ctrl,
1205 };
1206
1207 static const struct v4l2_ctrl_config solo_osd_text_ctrl = {
1208 .ops = &solo_ctrl_ops,
1209 .id = V4L2_CID_OSD_TEXT,
1210 .name = "OSD Text",
1211 .type = V4L2_CTRL_TYPE_STRING,
1212 .max = OSD_TEXT_MAX,
1213 .step = 1,
1214 };
1215
1216 /* Motion Detection Threshold matrix */
1217 static const struct v4l2_ctrl_config solo_md_thresholds = {
1218 .ops = &solo_ctrl_ops,
1219 .id = V4L2_CID_DETECT_MD_THRESHOLD_GRID,
1220 .dims = { SOLO_MOTION_SZ, SOLO_MOTION_SZ },
1221 .def = SOLO_DEF_MOT_THRESH,
1222 .max = 65535,
1223 .step = 1,
1224 };
1225
1226 static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
1227 u8 ch, unsigned nr)
1228 {
1229 struct solo_enc_dev *solo_enc;
1230 struct v4l2_ctrl_handler *hdl;
1231 int ret;
1232
1233 solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL);
1234 if (!solo_enc)
1235 return ERR_PTR(-ENOMEM);
1236
1237 hdl = &solo_enc->hdl;
1238 v4l2_ctrl_handler_init(hdl, 10);
1239 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1240 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1241 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1242 V4L2_CID_CONTRAST, 0, 255, 1, 128);
1243 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1244 V4L2_CID_SATURATION, 0, 255, 1, 128);
1245 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1246 V4L2_CID_HUE, 0, 255, 1, 128);
1247 if (tw28_has_sharpness(solo_dev, ch))
1248 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1249 V4L2_CID_SHARPNESS, 0, 15, 1, 0);
1250 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1251 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
1252 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1253 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP);
1254 v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops,
1255 V4L2_CID_DETECT_MD_MODE,
1256 V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,
1257 V4L2_DETECT_MD_MODE_DISABLED);
1258 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1259 V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD, 0, 0xff, 1,
1260 SOLO_DEF_MOT_THRESH >> 8);
1261 v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL);
1262 solo_enc->md_thresholds =
1263 v4l2_ctrl_new_custom(hdl, &solo_md_thresholds, NULL);
1264 if (hdl->error) {
1265 ret = hdl->error;
1266 goto hdl_free;
1267 }
1268
1269 solo_enc->solo_dev = solo_dev;
1270 solo_enc->ch = ch;
1271 mutex_init(&solo_enc->lock);
1272 spin_lock_init(&solo_enc->av_lock);
1273 INIT_LIST_HEAD(&solo_enc->vidq_active);
1274 solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ?
1275 V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264;
1276 solo_enc->type = SOLO_ENC_TYPE_STD;
1277
1278 solo_enc->qp = SOLO_DEFAULT_QP;
1279 solo_enc->gop = solo_dev->fps;
1280 solo_enc->interval = 1;
1281 solo_enc->mode = SOLO_ENC_MODE_CIF;
1282 solo_enc->motion_global = true;
1283 solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH;
1284 solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1285 solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1286 solo_enc->vidq.ops = &solo_enc_video_qops;
1287 solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
1288 solo_enc->vidq.drv_priv = solo_enc;
1289 solo_enc->vidq.gfp_flags = __GFP_DMA32 | __GFP_KSWAPD_RECLAIM;
1290 solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1291 solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
1292 solo_enc->vidq.lock = &solo_enc->lock;
1293 solo_enc->vidq.dev = &solo_dev->pdev->dev;
1294 ret = vb2_queue_init(&solo_enc->vidq);
1295 if (ret)
1296 goto hdl_free;
1297 solo_update_mode(solo_enc);
1298
1299 spin_lock_init(&solo_enc->motion_lock);
1300
1301 /* Initialize this per encoder */
1302 solo_enc->jpeg_len = sizeof(jpeg_header);
1303 memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
1304
1305 solo_enc->desc_nelts = 32;
1306 solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
1307 sizeof(struct solo_p2m_desc) *
1308 solo_enc->desc_nelts,
1309 &solo_enc->desc_dma);
1310 ret = -ENOMEM;
1311 if (solo_enc->desc_items == NULL)
1312 goto hdl_free;
1313
1314 solo_enc->vfd = video_device_alloc();
1315 if (!solo_enc->vfd)
1316 goto pci_free;
1317
1318 *solo_enc->vfd = solo_enc_template;
1319 solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev;
1320 solo_enc->vfd->ctrl_handler = hdl;
1321 solo_enc->vfd->queue = &solo_enc->vidq;
1322 solo_enc->vfd->lock = &solo_enc->lock;
1323 video_set_drvdata(solo_enc->vfd, solo_enc);
1324 ret = video_register_device(solo_enc->vfd, VFL_TYPE_GRABBER, nr);
1325 if (ret < 0)
1326 goto vdev_release;
1327
1328 snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name),
1329 "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num,
1330 solo_enc->vfd->num);
1331
1332 return solo_enc;
1333
1334 vdev_release:
1335 video_device_release(solo_enc->vfd);
1336 pci_free:
1337 pci_free_consistent(solo_enc->solo_dev->pdev,
1338 sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1339 solo_enc->desc_items, solo_enc->desc_dma);
1340 hdl_free:
1341 v4l2_ctrl_handler_free(hdl);
1342 kfree(solo_enc);
1343 return ERR_PTR(ret);
1344 }
1345
1346 static void solo_enc_free(struct solo_enc_dev *solo_enc)
1347 {
1348 if (solo_enc == NULL)
1349 return;
1350
1351 pci_free_consistent(solo_enc->solo_dev->pdev,
1352 sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1353 solo_enc->desc_items, solo_enc->desc_dma);
1354 video_unregister_device(solo_enc->vfd);
1355 v4l2_ctrl_handler_free(&solo_enc->hdl);
1356 kfree(solo_enc);
1357 }
1358
1359 int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
1360 {
1361 int i;
1362
1363 init_waitqueue_head(&solo_dev->ring_thread_wait);
1364
1365 solo_dev->vh_size = sizeof(vop_header);
1366 solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
1367 solo_dev->vh_size,
1368 &solo_dev->vh_dma);
1369 if (solo_dev->vh_buf == NULL)
1370 return -ENOMEM;
1371
1372 for (i = 0; i < solo_dev->nr_chans; i++) {
1373 solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr);
1374 if (IS_ERR(solo_dev->v4l2_enc[i]))
1375 break;
1376 }
1377
1378 if (i != solo_dev->nr_chans) {
1379 int ret = PTR_ERR(solo_dev->v4l2_enc[i]);
1380
1381 while (i--)
1382 solo_enc_free(solo_dev->v4l2_enc[i]);
1383 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1384 solo_dev->vh_buf, solo_dev->vh_dma);
1385 solo_dev->vh_buf = NULL;
1386 return ret;
1387 }
1388
1389 if (solo_dev->type == SOLO_DEV_6010)
1390 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4;
1391 else
1392 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5;
1393
1394 dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n",
1395 solo_dev->v4l2_enc[0]->vfd->num,
1396 solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num);
1397
1398 return solo_ring_start(solo_dev);
1399 }
1400
1401 void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
1402 {
1403 int i;
1404
1405 solo_ring_stop(solo_dev);
1406
1407 for (i = 0; i < solo_dev->nr_chans; i++)
1408 solo_enc_free(solo_dev->v4l2_enc[i]);
1409
1410 if (solo_dev->vh_buf)
1411 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1412 solo_dev->vh_buf, solo_dev->vh_dma);
1413 }
CRIS linux kernel tree