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Merge branch 'drm-3.17-rc2-sti-fixes' of git://git.linaro.org/people/benjamin.gaignar...
[mirror_ubuntu-hirsute-kernel.git] / drivers / media / pci / solo6x10 / solo6x10-v4l2-enc.c
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 (196 * 1024)
37 #define MP4_QS 16
38 #define DMA_ALIGN 4096
39
40 /* 6010 M4V */
41 static unsigned char 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 unsigned char 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 unsigned char 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 unsigned char 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 unsigned char 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 unsigned char 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 unsigned char 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 unsigned char 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 unsigned char *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_enc->motion_last_state = false;
243 solo_enc->frames_since_last_motion = 0;
244 solo_dev->enc_bw_remain -= solo_enc->bw_weight;
245
246 if (solo_enc->type == SOLO_ENC_TYPE_EXT)
247 solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(ch), 1);
248
249 /* Disable all encoding for this channel */
250 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), 0);
251
252 /* Common for both std and ext encoding */
253 solo_reg_write(solo_dev, SOLO_VE_CH_INTL(ch),
254 solo_enc->interlaced ? 1 : 0);
255
256 if (solo_enc->interlaced)
257 interval = solo_enc->interval - 1;
258 else
259 interval = solo_enc->interval;
260
261 /* Standard encoding only */
262 solo_reg_write(solo_dev, SOLO_VE_CH_GOP(ch), solo_enc->gop);
263 solo_reg_write(solo_dev, SOLO_VE_CH_QP(ch), solo_enc->qp);
264 solo_reg_write(solo_dev, SOLO_CAP_CH_INTV(ch), interval);
265
266 /* Extended encoding only */
267 solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(ch), solo_enc->gop);
268 solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(ch), solo_enc->qp);
269 solo_reg_write(solo_dev, SOLO_CAP_CH_INTV_E(ch), interval);
270
271 /* Enables the standard encoder */
272 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(ch), solo_enc->mode);
273
274 return 0;
275 }
276
277 static void solo_enc_off(struct solo_enc_dev *solo_enc)
278 {
279 struct solo_dev *solo_dev = solo_enc->solo_dev;
280
281 solo_dev->enc_bw_remain += solo_enc->bw_weight;
282
283 solo_reg_write(solo_dev, SOLO_CAP_CH_SCALE(solo_enc->ch), 0);
284 solo_reg_write(solo_dev, SOLO_CAP_CH_COMP_ENA_E(solo_enc->ch), 0);
285 }
286
287 static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
288 unsigned int off, unsigned int size)
289 {
290 int ret;
291
292 if (off > SOLO_MP4E_EXT_SIZE(solo_dev))
293 return -EINVAL;
294
295 /* Single shot */
296 if (off + size <= SOLO_MP4E_EXT_SIZE(solo_dev)) {
297 return solo_p2m_dma_t(solo_dev, 0, dma,
298 SOLO_MP4E_EXT_ADDR(solo_dev) + off, size,
299 0, 0);
300 }
301
302 /* Buffer wrap */
303 ret = solo_p2m_dma_t(solo_dev, 0, dma,
304 SOLO_MP4E_EXT_ADDR(solo_dev) + off,
305 SOLO_MP4E_EXT_SIZE(solo_dev) - off, 0, 0);
306
307 if (!ret) {
308 ret = solo_p2m_dma_t(solo_dev, 0,
309 dma + SOLO_MP4E_EXT_SIZE(solo_dev) - off,
310 SOLO_MP4E_EXT_ADDR(solo_dev),
311 size + off - SOLO_MP4E_EXT_SIZE(solo_dev), 0, 0);
312 }
313
314 return ret;
315 }
316
317 /* Build a descriptor queue out of an SG list and send it to the P2M for
318 * processing. */
319 static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
320 struct sg_table *vbuf, int off, int size,
321 unsigned int base, unsigned int base_size)
322 {
323 struct solo_dev *solo_dev = solo_enc->solo_dev;
324 struct scatterlist *sg;
325 int i;
326 int ret;
327
328 if (WARN_ON_ONCE(size > FRAME_BUF_SIZE))
329 return -EINVAL;
330
331 solo_enc->desc_count = 1;
332
333 for_each_sg(vbuf->sgl, sg, vbuf->nents, i) {
334 struct solo_p2m_desc *desc;
335 dma_addr_t dma;
336 int len;
337 int left = base_size - off;
338
339 desc = &solo_enc->desc_items[solo_enc->desc_count++];
340 dma = sg_dma_address(sg);
341 len = sg_dma_len(sg);
342
343 /* We assume this is smaller than the scatter size */
344 BUG_ON(skip >= len);
345 if (skip) {
346 len -= skip;
347 dma += skip;
348 size -= skip;
349 skip = 0;
350 }
351
352 len = min(len, size);
353
354 if (len <= left) {
355 /* Single descriptor */
356 solo_p2m_fill_desc(desc, 0, dma, base + off,
357 len, 0, 0);
358 } else {
359 /* Buffer wrap */
360 /* XXX: Do these as separate DMA requests, to avoid
361 timeout errors triggered by awkwardly sized
362 descriptors. See
363 <https://github.com/bluecherrydvr/solo6x10/issues/8>
364 */
365 ret = solo_p2m_dma_t(solo_dev, 0, dma, base + off,
366 left, 0, 0);
367 if (ret)
368 return ret;
369
370 ret = solo_p2m_dma_t(solo_dev, 0, dma + left, base,
371 len - left, 0, 0);
372 if (ret)
373 return ret;
374
375 solo_enc->desc_count--;
376 }
377
378 size -= len;
379 if (size <= 0)
380 break;
381
382 off += len;
383 if (off >= base_size)
384 off -= base_size;
385
386 /* Because we may use two descriptors per loop */
387 if (solo_enc->desc_count >= (solo_enc->desc_nelts - 1)) {
388 ret = solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
389 solo_enc->desc_dma,
390 solo_enc->desc_count - 1);
391 if (ret)
392 return ret;
393 solo_enc->desc_count = 1;
394 }
395 }
396
397 if (solo_enc->desc_count <= 1)
398 return 0;
399
400 return solo_p2m_dma_desc(solo_dev, solo_enc->desc_items,
401 solo_enc->desc_dma, solo_enc->desc_count - 1);
402 }
403
404 /* Extract values from VOP header - VE_STATUSxx */
405 static inline int vop_interlaced(const vop_header *vh)
406 {
407 return (__le32_to_cpu((*vh)[0]) >> 30) & 1;
408 }
409
410 static inline u8 vop_channel(const vop_header *vh)
411 {
412 return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F;
413 }
414
415 static inline u8 vop_type(const vop_header *vh)
416 {
417 return (__le32_to_cpu((*vh)[0]) >> 22) & 3;
418 }
419
420 static inline u32 vop_mpeg_size(const vop_header *vh)
421 {
422 return __le32_to_cpu((*vh)[0]) & 0xFFFFF;
423 }
424
425 static inline u8 vop_hsize(const vop_header *vh)
426 {
427 return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF;
428 }
429
430 static inline u8 vop_vsize(const vop_header *vh)
431 {
432 return __le32_to_cpu((*vh)[1]) & 0xFF;
433 }
434
435 static inline u32 vop_mpeg_offset(const vop_header *vh)
436 {
437 return __le32_to_cpu((*vh)[2]);
438 }
439
440 static inline u32 vop_jpeg_offset(const vop_header *vh)
441 {
442 return __le32_to_cpu((*vh)[3]);
443 }
444
445 static inline u32 vop_jpeg_size(const vop_header *vh)
446 {
447 return __le32_to_cpu((*vh)[4]) & 0xFFFFF;
448 }
449
450 static inline u32 vop_sec(const vop_header *vh)
451 {
452 return __le32_to_cpu((*vh)[5]);
453 }
454
455 static inline u32 vop_usec(const vop_header *vh)
456 {
457 return __le32_to_cpu((*vh)[6]);
458 }
459
460 static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
461 struct vb2_buffer *vb, const vop_header *vh)
462 {
463 struct solo_dev *solo_dev = solo_enc->solo_dev;
464 struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
465 int frame_size;
466 int ret;
467
468 vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
469
470 if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
471 return -EIO;
472
473 frame_size = ALIGN(vop_jpeg_size(vh) + solo_enc->jpeg_len, DMA_ALIGN);
474 vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
475
476 /* may discard all previous data in vbuf->sgl */
477 if (!dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
478 DMA_FROM_DEVICE))
479 return -ENOMEM;
480 ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf,
481 vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev),
482 frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
483 SOLO_JPEG_EXT_SIZE(solo_dev));
484 dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
485 DMA_FROM_DEVICE);
486
487 /* add the header only after dma_unmap_sg() */
488 sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
489 solo_enc->jpeg_header, solo_enc->jpeg_len);
490
491 return ret;
492 }
493
494 static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
495 struct vb2_buffer *vb, const vop_header *vh)
496 {
497 struct solo_dev *solo_dev = solo_enc->solo_dev;
498 struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
499 int frame_off, frame_size;
500 int skip = 0;
501 int ret;
502
503 if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh))
504 return -EIO;
505
506 /* If this is a key frame, add extra header */
507 vb->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME |
508 V4L2_BUF_FLAG_BFRAME);
509 if (!vop_type(vh)) {
510 skip = solo_enc->vop_len;
511 vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
512 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) +
513 solo_enc->vop_len);
514 } else {
515 vb->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
516 vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh));
517 }
518
519 /* Now get the actual mpeg payload */
520 frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) +
521 sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev);
522 frame_size = ALIGN(vop_mpeg_size(vh) + skip, DMA_ALIGN);
523
524 /* may discard all previous data in vbuf->sgl */
525 if (!dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
526 DMA_FROM_DEVICE))
527 return -ENOMEM;
528 ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size,
529 SOLO_MP4E_EXT_ADDR(solo_dev),
530 SOLO_MP4E_EXT_SIZE(solo_dev));
531 dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
532 DMA_FROM_DEVICE);
533
534 /* add the header only after dma_unmap_sg() */
535 if (!vop_type(vh))
536 sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
537 solo_enc->vop, solo_enc->vop_len);
538 return ret;
539 }
540
541 static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
542 struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
543 {
544 const vop_header *vh = enc_buf->vh;
545 int ret;
546
547 switch (solo_enc->fmt) {
548 case V4L2_PIX_FMT_MPEG4:
549 case V4L2_PIX_FMT_H264:
550 ret = solo_fill_mpeg(solo_enc, vb, vh);
551 break;
552 default: /* V4L2_PIX_FMT_MJPEG */
553 ret = solo_fill_jpeg(solo_enc, vb, vh);
554 break;
555 }
556
557 if (!ret) {
558 bool send_event = false;
559
560 vb->v4l2_buf.sequence = solo_enc->sequence++;
561 vb->v4l2_buf.timestamp.tv_sec = vop_sec(vh);
562 vb->v4l2_buf.timestamp.tv_usec = vop_usec(vh);
563
564 /* Check for motion flags */
565 if (solo_is_motion_on(solo_enc)) {
566 /* It takes a few frames for the hardware to detect
567 * motion. Once it does it clears the motion detection
568 * register and it takes again a few frames before
569 * motion is seen. This means in practice that when the
570 * motion field is 1, it will go back to 0 for the next
571 * frame. This leads to motion detection event being
572 * sent all the time, which is not what we want.
573 * Instead wait a few frames before deciding that the
574 * motion has halted. After some experimentation it
575 * turns out that waiting for 5 frames works well.
576 */
577 if (enc_buf->motion == 0 &&
578 solo_enc->motion_last_state &&
579 solo_enc->frames_since_last_motion++ > 5)
580 send_event = true;
581 else if (enc_buf->motion) {
582 solo_enc->frames_since_last_motion = 0;
583 send_event = !solo_enc->motion_last_state;
584 }
585 }
586
587 if (send_event) {
588 struct v4l2_event ev = {
589 .type = V4L2_EVENT_MOTION_DET,
590 .u.motion_det = {
591 .flags = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
592 .frame_sequence = vb->v4l2_buf.sequence,
593 .region_mask = enc_buf->motion ? 1 : 0,
594 },
595 };
596
597 solo_enc->motion_last_state = enc_buf->motion;
598 solo_enc->frames_since_last_motion = 0;
599 v4l2_event_queue(solo_enc->vfd, &ev);
600 }
601 }
602
603 vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
604
605 return ret;
606 }
607
608 static void solo_enc_handle_one(struct solo_enc_dev *solo_enc,
609 struct solo_enc_buf *enc_buf)
610 {
611 struct solo_vb2_buf *vb;
612 unsigned long flags;
613
614 mutex_lock(&solo_enc->lock);
615 if (solo_enc->type != enc_buf->type)
616 goto unlock;
617
618 spin_lock_irqsave(&solo_enc->av_lock, flags);
619 if (list_empty(&solo_enc->vidq_active)) {
620 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
621 goto unlock;
622 }
623 vb = list_first_entry(&solo_enc->vidq_active, struct solo_vb2_buf,
624 list);
625 list_del(&vb->list);
626 spin_unlock_irqrestore(&solo_enc->av_lock, flags);
627
628 solo_enc_fillbuf(solo_enc, &vb->vb, enc_buf);
629 unlock:
630 mutex_unlock(&solo_enc->lock);
631 }
632
633 void solo_enc_v4l2_isr(struct solo_dev *solo_dev)
634 {
635 wake_up_interruptible_all(&solo_dev->ring_thread_wait);
636 }
637
638 static void solo_handle_ring(struct solo_dev *solo_dev)
639 {
640 for (;;) {
641 struct solo_enc_dev *solo_enc;
642 struct solo_enc_buf enc_buf;
643 u32 mpeg_current, off;
644 u8 ch;
645 u8 cur_q;
646
647 /* Check if the hardware has any new ones in the queue */
648 cur_q = solo_reg_read(solo_dev, SOLO_VE_STATE(11)) & 0xff;
649 if (cur_q == solo_dev->enc_idx)
650 break;
651
652 mpeg_current = solo_reg_read(solo_dev,
653 SOLO_VE_MPEG4_QUE(solo_dev->enc_idx));
654 solo_dev->enc_idx = (solo_dev->enc_idx + 1) % MP4_QS;
655
656 ch = (mpeg_current >> 24) & 0x1f;
657 off = mpeg_current & 0x00ffffff;
658
659 if (ch >= SOLO_MAX_CHANNELS) {
660 ch -= SOLO_MAX_CHANNELS;
661 enc_buf.type = SOLO_ENC_TYPE_EXT;
662 } else
663 enc_buf.type = SOLO_ENC_TYPE_STD;
664
665 solo_enc = solo_dev->v4l2_enc[ch];
666 if (solo_enc == NULL) {
667 dev_err(&solo_dev->pdev->dev,
668 "Got spurious packet for channel %d\n", ch);
669 continue;
670 }
671
672 /* FAIL... */
673 if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
674 sizeof(vop_header)))
675 continue;
676
677 enc_buf.vh = solo_dev->vh_buf;
678
679 /* Sanity check */
680 if (vop_mpeg_offset(enc_buf.vh) !=
681 SOLO_MP4E_EXT_ADDR(solo_dev) + off)
682 continue;
683
684 if (solo_motion_detected(solo_enc))
685 enc_buf.motion = 1;
686 else
687 enc_buf.motion = 0;
688
689 solo_enc_handle_one(solo_enc, &enc_buf);
690 }
691 }
692
693 static int solo_ring_thread(void *data)
694 {
695 struct solo_dev *solo_dev = data;
696 DECLARE_WAITQUEUE(wait, current);
697
698 set_freezable();
699 add_wait_queue(&solo_dev->ring_thread_wait, &wait);
700
701 for (;;) {
702 long timeout = schedule_timeout_interruptible(HZ);
703
704 if (timeout == -ERESTARTSYS || kthread_should_stop())
705 break;
706 solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
707 solo_handle_ring(solo_dev);
708 solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
709 try_to_freeze();
710 }
711
712 remove_wait_queue(&solo_dev->ring_thread_wait, &wait);
713
714 return 0;
715 }
716
717 static int solo_enc_queue_setup(struct vb2_queue *q,
718 const struct v4l2_format *fmt,
719 unsigned int *num_buffers,
720 unsigned int *num_planes, unsigned int sizes[],
721 void *alloc_ctxs[])
722 {
723 sizes[0] = FRAME_BUF_SIZE;
724 *num_planes = 1;
725
726 if (*num_buffers < MIN_VID_BUFFERS)
727 *num_buffers = MIN_VID_BUFFERS;
728
729 return 0;
730 }
731
732 static void solo_enc_buf_queue(struct vb2_buffer *vb)
733 {
734 struct vb2_queue *vq = vb->vb2_queue;
735 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(vq);
736 struct solo_vb2_buf *solo_vb =
737 container_of(vb, struct solo_vb2_buf, vb);
738
739 spin_lock(&solo_enc->av_lock);
740 list_add_tail(&solo_vb->list, &solo_enc->vidq_active);
741 spin_unlock(&solo_enc->av_lock);
742 }
743
744 static int solo_ring_start(struct solo_dev *solo_dev)
745 {
746 solo_dev->ring_thread = kthread_run(solo_ring_thread, solo_dev,
747 SOLO6X10_NAME "_ring");
748 if (IS_ERR(solo_dev->ring_thread)) {
749 int err = PTR_ERR(solo_dev->ring_thread);
750
751 solo_dev->ring_thread = NULL;
752 return err;
753 }
754
755 solo_irq_on(solo_dev, SOLO_IRQ_ENCODER);
756
757 return 0;
758 }
759
760 static void solo_ring_stop(struct solo_dev *solo_dev)
761 {
762 if (solo_dev->ring_thread) {
763 kthread_stop(solo_dev->ring_thread);
764 solo_dev->ring_thread = NULL;
765 }
766
767 solo_irq_off(solo_dev, SOLO_IRQ_ENCODER);
768 }
769
770 static int solo_enc_start_streaming(struct vb2_queue *q, unsigned int count)
771 {
772 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
773 int ret;
774
775 ret = solo_enc_on(solo_enc);
776 if (ret)
777 return ret;
778 return solo_ring_start(solo_enc->solo_dev);
779 }
780
781 static void solo_enc_stop_streaming(struct vb2_queue *q)
782 {
783 struct solo_enc_dev *solo_enc = vb2_get_drv_priv(q);
784
785 solo_enc_off(solo_enc);
786 INIT_LIST_HEAD(&solo_enc->vidq_active);
787 solo_ring_stop(solo_enc->solo_dev);
788 }
789
790 static struct vb2_ops solo_enc_video_qops = {
791 .queue_setup = solo_enc_queue_setup,
792 .buf_queue = solo_enc_buf_queue,
793 .start_streaming = solo_enc_start_streaming,
794 .stop_streaming = solo_enc_stop_streaming,
795 .wait_prepare = vb2_ops_wait_prepare,
796 .wait_finish = vb2_ops_wait_finish,
797 };
798
799 static int solo_enc_querycap(struct file *file, void *priv,
800 struct v4l2_capability *cap)
801 {
802 struct solo_enc_dev *solo_enc = video_drvdata(file);
803 struct solo_dev *solo_dev = solo_enc->solo_dev;
804
805 strcpy(cap->driver, SOLO6X10_NAME);
806 snprintf(cap->card, sizeof(cap->card), "Softlogic 6x10 Enc %d",
807 solo_enc->ch);
808 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
809 pci_name(solo_dev->pdev));
810 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
811 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
812 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
813 return 0;
814 }
815
816 static int solo_enc_enum_input(struct file *file, void *priv,
817 struct v4l2_input *input)
818 {
819 struct solo_enc_dev *solo_enc = video_drvdata(file);
820 struct solo_dev *solo_dev = solo_enc->solo_dev;
821
822 if (input->index)
823 return -EINVAL;
824
825 snprintf(input->name, sizeof(input->name), "Encoder %d",
826 solo_enc->ch + 1);
827 input->type = V4L2_INPUT_TYPE_CAMERA;
828 input->std = solo_enc->vfd->tvnorms;
829
830 if (!tw28_get_video_status(solo_dev, solo_enc->ch))
831 input->status = V4L2_IN_ST_NO_SIGNAL;
832
833 return 0;
834 }
835
836 static int solo_enc_set_input(struct file *file, void *priv,
837 unsigned int index)
838 {
839 if (index)
840 return -EINVAL;
841
842 return 0;
843 }
844
845 static int solo_enc_get_input(struct file *file, void *priv,
846 unsigned int *index)
847 {
848 *index = 0;
849
850 return 0;
851 }
852
853 static int solo_enc_enum_fmt_cap(struct file *file, void *priv,
854 struct v4l2_fmtdesc *f)
855 {
856 struct solo_enc_dev *solo_enc = video_drvdata(file);
857 int dev_type = solo_enc->solo_dev->type;
858
859 switch (f->index) {
860 case 0:
861 switch (dev_type) {
862 case SOLO_DEV_6010:
863 f->pixelformat = V4L2_PIX_FMT_MPEG4;
864 strcpy(f->description, "MPEG-4 part 2");
865 break;
866 case SOLO_DEV_6110:
867 f->pixelformat = V4L2_PIX_FMT_H264;
868 strcpy(f->description, "H.264");
869 break;
870 }
871 break;
872 case 1:
873 f->pixelformat = V4L2_PIX_FMT_MJPEG;
874 strcpy(f->description, "MJPEG");
875 break;
876 default:
877 return -EINVAL;
878 }
879
880 f->flags = V4L2_FMT_FLAG_COMPRESSED;
881
882 return 0;
883 }
884
885 static inline int solo_valid_pixfmt(u32 pixfmt, int dev_type)
886 {
887 return (pixfmt == V4L2_PIX_FMT_H264 && dev_type == SOLO_DEV_6110)
888 || (pixfmt == V4L2_PIX_FMT_MPEG4 && dev_type == SOLO_DEV_6010)
889 || pixfmt == V4L2_PIX_FMT_MJPEG ? 0 : -EINVAL;
890 }
891
892 static int solo_enc_try_fmt_cap(struct file *file, void *priv,
893 struct v4l2_format *f)
894 {
895 struct solo_enc_dev *solo_enc = video_drvdata(file);
896 struct solo_dev *solo_dev = solo_enc->solo_dev;
897 struct v4l2_pix_format *pix = &f->fmt.pix;
898
899 if (solo_valid_pixfmt(pix->pixelformat, solo_dev->type))
900 return -EINVAL;
901
902 if (pix->width < solo_dev->video_hsize ||
903 pix->height < solo_dev->video_vsize << 1) {
904 /* Default to CIF 1/2 size */
905 pix->width = solo_dev->video_hsize >> 1;
906 pix->height = solo_dev->video_vsize;
907 } else {
908 /* Full frame */
909 pix->width = solo_dev->video_hsize;
910 pix->height = solo_dev->video_vsize << 1;
911 }
912
913 switch (pix->field) {
914 case V4L2_FIELD_NONE:
915 case V4L2_FIELD_INTERLACED:
916 break;
917 case V4L2_FIELD_ANY:
918 default:
919 pix->field = V4L2_FIELD_INTERLACED;
920 break;
921 }
922
923 /* Just set these */
924 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
925 pix->sizeimage = FRAME_BUF_SIZE;
926 pix->bytesperline = 0;
927 pix->priv = 0;
928
929 return 0;
930 }
931
932 static int solo_enc_set_fmt_cap(struct file *file, void *priv,
933 struct v4l2_format *f)
934 {
935 struct solo_enc_dev *solo_enc = video_drvdata(file);
936 struct solo_dev *solo_dev = solo_enc->solo_dev;
937 struct v4l2_pix_format *pix = &f->fmt.pix;
938 int ret;
939
940 if (vb2_is_busy(&solo_enc->vidq))
941 return -EBUSY;
942
943 ret = solo_enc_try_fmt_cap(file, priv, f);
944 if (ret)
945 return ret;
946
947 if (pix->width == solo_dev->video_hsize)
948 solo_enc->mode = SOLO_ENC_MODE_D1;
949 else
950 solo_enc->mode = SOLO_ENC_MODE_CIF;
951
952 /* This does not change the encoder at all */
953 solo_enc->fmt = pix->pixelformat;
954
955 /*
956 * More information is needed about these 'extended' types. As far
957 * as I can tell these are basically additional video streams with
958 * different MPEG encoding attributes that can run in parallel with
959 * the main stream. If so, then this should be implemented as a
960 * second video node. Abusing priv like this is certainly not the
961 * right approach.
962 if (pix->priv)
963 solo_enc->type = SOLO_ENC_TYPE_EXT;
964 */
965 solo_update_mode(solo_enc);
966 return 0;
967 }
968
969 static int solo_enc_get_fmt_cap(struct file *file, void *priv,
970 struct v4l2_format *f)
971 {
972 struct solo_enc_dev *solo_enc = video_drvdata(file);
973 struct v4l2_pix_format *pix = &f->fmt.pix;
974
975 pix->width = solo_enc->width;
976 pix->height = solo_enc->height;
977 pix->pixelformat = solo_enc->fmt;
978 pix->field = solo_enc->interlaced ? V4L2_FIELD_INTERLACED :
979 V4L2_FIELD_NONE;
980 pix->sizeimage = FRAME_BUF_SIZE;
981 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
982 pix->priv = 0;
983
984 return 0;
985 }
986
987 static int solo_enc_g_std(struct file *file, void *priv, v4l2_std_id *i)
988 {
989 struct solo_enc_dev *solo_enc = video_drvdata(file);
990 struct solo_dev *solo_dev = solo_enc->solo_dev;
991
992 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
993 *i = V4L2_STD_NTSC_M;
994 else
995 *i = V4L2_STD_PAL;
996 return 0;
997 }
998
999 static int solo_enc_s_std(struct file *file, void *priv, v4l2_std_id std)
1000 {
1001 struct solo_enc_dev *solo_enc = video_drvdata(file);
1002
1003 return solo_set_video_type(solo_enc->solo_dev, std & V4L2_STD_625_50);
1004 }
1005
1006 static int solo_enum_framesizes(struct file *file, void *priv,
1007 struct v4l2_frmsizeenum *fsize)
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(fsize->pixel_format, solo_dev->type))
1013 return -EINVAL;
1014
1015 switch (fsize->index) {
1016 case 0:
1017 fsize->discrete.width = solo_dev->video_hsize >> 1;
1018 fsize->discrete.height = solo_dev->video_vsize;
1019 break;
1020 case 1:
1021 fsize->discrete.width = solo_dev->video_hsize;
1022 fsize->discrete.height = solo_dev->video_vsize << 1;
1023 break;
1024 default:
1025 return -EINVAL;
1026 }
1027
1028 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1029
1030 return 0;
1031 }
1032
1033 static int solo_enum_frameintervals(struct file *file, void *priv,
1034 struct v4l2_frmivalenum *fintv)
1035 {
1036 struct solo_enc_dev *solo_enc = video_drvdata(file);
1037 struct solo_dev *solo_dev = solo_enc->solo_dev;
1038
1039 if (solo_valid_pixfmt(fintv->pixel_format, solo_dev->type))
1040 return -EINVAL;
1041 if (fintv->index)
1042 return -EINVAL;
1043 if ((fintv->width != solo_dev->video_hsize >> 1 ||
1044 fintv->height != solo_dev->video_vsize) &&
1045 (fintv->width != solo_dev->video_hsize ||
1046 fintv->height != solo_dev->video_vsize << 1))
1047 return -EINVAL;
1048
1049 fintv->type = V4L2_FRMIVAL_TYPE_STEPWISE;
1050
1051 fintv->stepwise.min.numerator = 1;
1052 fintv->stepwise.min.denominator = solo_dev->fps;
1053
1054 fintv->stepwise.max.numerator = 15;
1055 fintv->stepwise.max.denominator = solo_dev->fps;
1056
1057 fintv->stepwise.step.numerator = 1;
1058 fintv->stepwise.step.denominator = solo_dev->fps;
1059
1060 return 0;
1061 }
1062
1063 static int solo_g_parm(struct file *file, void *priv,
1064 struct v4l2_streamparm *sp)
1065 {
1066 struct solo_enc_dev *solo_enc = video_drvdata(file);
1067 struct v4l2_captureparm *cp = &sp->parm.capture;
1068
1069 cp->capability = V4L2_CAP_TIMEPERFRAME;
1070 cp->timeperframe.numerator = solo_enc->interval;
1071 cp->timeperframe.denominator = solo_enc->solo_dev->fps;
1072 cp->capturemode = 0;
1073 /* XXX: Shouldn't we be able to get/set this from videobuf? */
1074 cp->readbuffers = 2;
1075
1076 return 0;
1077 }
1078
1079 static inline int calc_interval(u8 fps, u32 n, u32 d)
1080 {
1081 if (!n || !d)
1082 return 1;
1083 if (d == fps)
1084 return n;
1085 n *= fps;
1086 return min(15U, n / d + (n % d >= (fps >> 1)));
1087 }
1088
1089 static int solo_s_parm(struct file *file, void *priv,
1090 struct v4l2_streamparm *sp)
1091 {
1092 struct solo_enc_dev *solo_enc = video_drvdata(file);
1093 struct v4l2_fract *t = &sp->parm.capture.timeperframe;
1094 u8 fps = solo_enc->solo_dev->fps;
1095
1096 if (vb2_is_streaming(&solo_enc->vidq))
1097 return -EBUSY;
1098
1099 solo_enc->interval = calc_interval(fps, t->numerator, t->denominator);
1100 solo_update_mode(solo_enc);
1101 return solo_g_parm(file, priv, sp);
1102 }
1103
1104 static int solo_s_ctrl(struct v4l2_ctrl *ctrl)
1105 {
1106 struct solo_enc_dev *solo_enc =
1107 container_of(ctrl->handler, struct solo_enc_dev, hdl);
1108 struct solo_dev *solo_dev = solo_enc->solo_dev;
1109 int err;
1110
1111 switch (ctrl->id) {
1112 case V4L2_CID_BRIGHTNESS:
1113 case V4L2_CID_CONTRAST:
1114 case V4L2_CID_SATURATION:
1115 case V4L2_CID_HUE:
1116 case V4L2_CID_SHARPNESS:
1117 return tw28_set_ctrl_val(solo_dev, ctrl->id, solo_enc->ch,
1118 ctrl->val);
1119 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1120 solo_enc->gop = ctrl->val;
1121 solo_reg_write(solo_dev, SOLO_VE_CH_GOP(solo_enc->ch), solo_enc->gop);
1122 solo_reg_write(solo_dev, SOLO_VE_CH_GOP_E(solo_enc->ch), solo_enc->gop);
1123 return 0;
1124 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1125 solo_enc->qp = ctrl->val;
1126 solo_reg_write(solo_dev, SOLO_VE_CH_QP(solo_enc->ch), solo_enc->qp);
1127 solo_reg_write(solo_dev, SOLO_VE_CH_QP_E(solo_enc->ch), solo_enc->qp);
1128 return 0;
1129 case V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD:
1130 solo_enc->motion_thresh = ctrl->val << 8;
1131 if (!solo_enc->motion_global || !solo_enc->motion_enabled)
1132 return 0;
1133 return solo_set_motion_threshold(solo_dev, solo_enc->ch,
1134 solo_enc->motion_thresh);
1135 case V4L2_CID_DETECT_MD_MODE:
1136 solo_enc->motion_global = ctrl->val == V4L2_DETECT_MD_MODE_GLOBAL;
1137 solo_enc->motion_enabled = ctrl->val > V4L2_DETECT_MD_MODE_DISABLED;
1138 if (ctrl->val) {
1139 if (solo_enc->motion_global)
1140 err = solo_set_motion_threshold(solo_dev, solo_enc->ch,
1141 solo_enc->motion_thresh);
1142 else
1143 err = solo_set_motion_block(solo_dev, solo_enc->ch,
1144 solo_enc->md_thresholds->p_cur.p_u16);
1145 if (err)
1146 return err;
1147 }
1148 solo_motion_toggle(solo_enc, ctrl->val);
1149 return 0;
1150 case V4L2_CID_DETECT_MD_THRESHOLD_GRID:
1151 if (solo_enc->motion_enabled && !solo_enc->motion_global)
1152 return solo_set_motion_block(solo_dev, solo_enc->ch,
1153 solo_enc->md_thresholds->p_new.p_u16);
1154 break;
1155 case V4L2_CID_OSD_TEXT:
1156 strcpy(solo_enc->osd_text, ctrl->p_new.p_char);
1157 return solo_osd_print(solo_enc);
1158 default:
1159 return -EINVAL;
1160 }
1161
1162 return 0;
1163 }
1164
1165 static int solo_subscribe_event(struct v4l2_fh *fh,
1166 const struct v4l2_event_subscription *sub)
1167 {
1168
1169 switch (sub->type) {
1170 case V4L2_EVENT_CTRL:
1171 return v4l2_ctrl_subscribe_event(fh, sub);
1172 case V4L2_EVENT_MOTION_DET:
1173 /* Allow for up to 30 events (1 second for NTSC) to be
1174 * stored. */
1175 return v4l2_event_subscribe(fh, sub, 30, NULL);
1176 }
1177 return -EINVAL;
1178 }
1179
1180 static const struct v4l2_file_operations solo_enc_fops = {
1181 .owner = THIS_MODULE,
1182 .open = v4l2_fh_open,
1183 .release = vb2_fop_release,
1184 .read = vb2_fop_read,
1185 .poll = vb2_fop_poll,
1186 .mmap = vb2_fop_mmap,
1187 .unlocked_ioctl = video_ioctl2,
1188 };
1189
1190 static const struct v4l2_ioctl_ops solo_enc_ioctl_ops = {
1191 .vidioc_querycap = solo_enc_querycap,
1192 .vidioc_s_std = solo_enc_s_std,
1193 .vidioc_g_std = solo_enc_g_std,
1194 /* Input callbacks */
1195 .vidioc_enum_input = solo_enc_enum_input,
1196 .vidioc_s_input = solo_enc_set_input,
1197 .vidioc_g_input = solo_enc_get_input,
1198 /* Video capture format callbacks */
1199 .vidioc_enum_fmt_vid_cap = solo_enc_enum_fmt_cap,
1200 .vidioc_try_fmt_vid_cap = solo_enc_try_fmt_cap,
1201 .vidioc_s_fmt_vid_cap = solo_enc_set_fmt_cap,
1202 .vidioc_g_fmt_vid_cap = solo_enc_get_fmt_cap,
1203 /* Streaming I/O */
1204 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1205 .vidioc_querybuf = vb2_ioctl_querybuf,
1206 .vidioc_qbuf = vb2_ioctl_qbuf,
1207 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1208 .vidioc_streamon = vb2_ioctl_streamon,
1209 .vidioc_streamoff = vb2_ioctl_streamoff,
1210 /* Frame size and interval */
1211 .vidioc_enum_framesizes = solo_enum_framesizes,
1212 .vidioc_enum_frameintervals = solo_enum_frameintervals,
1213 /* Video capture parameters */
1214 .vidioc_s_parm = solo_s_parm,
1215 .vidioc_g_parm = solo_g_parm,
1216 /* Logging and events */
1217 .vidioc_log_status = v4l2_ctrl_log_status,
1218 .vidioc_subscribe_event = solo_subscribe_event,
1219 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1220 };
1221
1222 static const struct video_device solo_enc_template = {
1223 .name = SOLO6X10_NAME,
1224 .fops = &solo_enc_fops,
1225 .ioctl_ops = &solo_enc_ioctl_ops,
1226 .minor = -1,
1227 .release = video_device_release,
1228 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL,
1229 };
1230
1231 static const struct v4l2_ctrl_ops solo_ctrl_ops = {
1232 .s_ctrl = solo_s_ctrl,
1233 };
1234
1235 static const struct v4l2_ctrl_config solo_osd_text_ctrl = {
1236 .ops = &solo_ctrl_ops,
1237 .id = V4L2_CID_OSD_TEXT,
1238 .name = "OSD Text",
1239 .type = V4L2_CTRL_TYPE_STRING,
1240 .max = OSD_TEXT_MAX,
1241 .step = 1,
1242 };
1243
1244 /* Motion Detection Threshold matrix */
1245 static const struct v4l2_ctrl_config solo_md_thresholds = {
1246 .ops = &solo_ctrl_ops,
1247 .id = V4L2_CID_DETECT_MD_THRESHOLD_GRID,
1248 .dims = { SOLO_MOTION_SZ, SOLO_MOTION_SZ },
1249 .def = SOLO_DEF_MOT_THRESH,
1250 .max = 65535,
1251 .step = 1,
1252 };
1253
1254 static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
1255 u8 ch, unsigned nr)
1256 {
1257 struct solo_enc_dev *solo_enc;
1258 struct v4l2_ctrl_handler *hdl;
1259 int ret;
1260
1261 solo_enc = kzalloc(sizeof(*solo_enc), GFP_KERNEL);
1262 if (!solo_enc)
1263 return ERR_PTR(-ENOMEM);
1264
1265 hdl = &solo_enc->hdl;
1266 v4l2_ctrl_handler_init(hdl, 10);
1267 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1268 V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1269 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1270 V4L2_CID_CONTRAST, 0, 255, 1, 128);
1271 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1272 V4L2_CID_SATURATION, 0, 255, 1, 128);
1273 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1274 V4L2_CID_HUE, 0, 255, 1, 128);
1275 if (tw28_has_sharpness(solo_dev, ch))
1276 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1277 V4L2_CID_SHARPNESS, 0, 15, 1, 0);
1278 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1279 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 255, 1, solo_dev->fps);
1280 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1281 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 31, 1, SOLO_DEFAULT_QP);
1282 v4l2_ctrl_new_std_menu(hdl, &solo_ctrl_ops,
1283 V4L2_CID_DETECT_MD_MODE,
1284 V4L2_DETECT_MD_MODE_THRESHOLD_GRID, 0,
1285 V4L2_DETECT_MD_MODE_DISABLED);
1286 v4l2_ctrl_new_std(hdl, &solo_ctrl_ops,
1287 V4L2_CID_DETECT_MD_GLOBAL_THRESHOLD, 0, 0xff, 1,
1288 SOLO_DEF_MOT_THRESH >> 8);
1289 v4l2_ctrl_new_custom(hdl, &solo_osd_text_ctrl, NULL);
1290 solo_enc->md_thresholds =
1291 v4l2_ctrl_new_custom(hdl, &solo_md_thresholds, NULL);
1292 if (hdl->error) {
1293 ret = hdl->error;
1294 goto hdl_free;
1295 }
1296
1297 solo_enc->solo_dev = solo_dev;
1298 solo_enc->ch = ch;
1299 mutex_init(&solo_enc->lock);
1300 spin_lock_init(&solo_enc->av_lock);
1301 INIT_LIST_HEAD(&solo_enc->vidq_active);
1302 solo_enc->fmt = (solo_dev->type == SOLO_DEV_6010) ?
1303 V4L2_PIX_FMT_MPEG4 : V4L2_PIX_FMT_H264;
1304 solo_enc->type = SOLO_ENC_TYPE_STD;
1305
1306 solo_enc->qp = SOLO_DEFAULT_QP;
1307 solo_enc->gop = solo_dev->fps;
1308 solo_enc->interval = 1;
1309 solo_enc->mode = SOLO_ENC_MODE_CIF;
1310 solo_enc->motion_global = true;
1311 solo_enc->motion_thresh = SOLO_DEF_MOT_THRESH;
1312 solo_enc->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1313 solo_enc->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1314 solo_enc->vidq.ops = &solo_enc_video_qops;
1315 solo_enc->vidq.mem_ops = &vb2_dma_sg_memops;
1316 solo_enc->vidq.drv_priv = solo_enc;
1317 solo_enc->vidq.gfp_flags = __GFP_DMA32;
1318 solo_enc->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1319 solo_enc->vidq.buf_struct_size = sizeof(struct solo_vb2_buf);
1320 solo_enc->vidq.lock = &solo_enc->lock;
1321 ret = vb2_queue_init(&solo_enc->vidq);
1322 if (ret)
1323 goto hdl_free;
1324 solo_update_mode(solo_enc);
1325
1326 spin_lock_init(&solo_enc->motion_lock);
1327
1328 /* Initialize this per encoder */
1329 solo_enc->jpeg_len = sizeof(jpeg_header);
1330 memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
1331
1332 solo_enc->desc_nelts = 32;
1333 solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
1334 sizeof(struct solo_p2m_desc) *
1335 solo_enc->desc_nelts,
1336 &solo_enc->desc_dma);
1337 ret = -ENOMEM;
1338 if (solo_enc->desc_items == NULL)
1339 goto hdl_free;
1340
1341 solo_enc->vfd = video_device_alloc();
1342 if (!solo_enc->vfd)
1343 goto pci_free;
1344
1345 *solo_enc->vfd = solo_enc_template;
1346 solo_enc->vfd->v4l2_dev = &solo_dev->v4l2_dev;
1347 solo_enc->vfd->ctrl_handler = hdl;
1348 solo_enc->vfd->queue = &solo_enc->vidq;
1349 solo_enc->vfd->lock = &solo_enc->lock;
1350 video_set_drvdata(solo_enc->vfd, solo_enc);
1351 ret = video_register_device(solo_enc->vfd, VFL_TYPE_GRABBER, nr);
1352 if (ret < 0)
1353 goto vdev_release;
1354
1355 snprintf(solo_enc->vfd->name, sizeof(solo_enc->vfd->name),
1356 "%s-enc (%i/%i)", SOLO6X10_NAME, solo_dev->vfd->num,
1357 solo_enc->vfd->num);
1358
1359 return solo_enc;
1360
1361 vdev_release:
1362 video_device_release(solo_enc->vfd);
1363 pci_free:
1364 pci_free_consistent(solo_enc->solo_dev->pdev,
1365 sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
1366 solo_enc->desc_items, solo_enc->desc_dma);
1367 hdl_free:
1368 v4l2_ctrl_handler_free(hdl);
1369 kfree(solo_enc);
1370 return ERR_PTR(ret);
1371 }
1372
1373 static void solo_enc_free(struct solo_enc_dev *solo_enc)
1374 {
1375 if (solo_enc == NULL)
1376 return;
1377
1378 video_unregister_device(solo_enc->vfd);
1379 v4l2_ctrl_handler_free(&solo_enc->hdl);
1380 kfree(solo_enc);
1381 }
1382
1383 int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
1384 {
1385 int i;
1386
1387 init_waitqueue_head(&solo_dev->ring_thread_wait);
1388
1389 solo_dev->vh_size = sizeof(vop_header);
1390 solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
1391 solo_dev->vh_size,
1392 &solo_dev->vh_dma);
1393 if (solo_dev->vh_buf == NULL)
1394 return -ENOMEM;
1395
1396 for (i = 0; i < solo_dev->nr_chans; i++) {
1397 solo_dev->v4l2_enc[i] = solo_enc_alloc(solo_dev, i, nr);
1398 if (IS_ERR(solo_dev->v4l2_enc[i]))
1399 break;
1400 }
1401
1402 if (i != solo_dev->nr_chans) {
1403 int ret = PTR_ERR(solo_dev->v4l2_enc[i]);
1404
1405 while (i--)
1406 solo_enc_free(solo_dev->v4l2_enc[i]);
1407 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1408 solo_dev->vh_buf, solo_dev->vh_dma);
1409 solo_dev->vh_buf = NULL;
1410 return ret;
1411 }
1412
1413 if (solo_dev->type == SOLO_DEV_6010)
1414 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 4;
1415 else
1416 solo_dev->enc_bw_remain = solo_dev->fps * 4 * 5;
1417
1418 dev_info(&solo_dev->pdev->dev, "Encoders as /dev/video%d-%d\n",
1419 solo_dev->v4l2_enc[0]->vfd->num,
1420 solo_dev->v4l2_enc[solo_dev->nr_chans - 1]->vfd->num);
1421
1422 return 0;
1423 }
1424
1425 void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
1426 {
1427 int i;
1428
1429 for (i = 0; i < solo_dev->nr_chans; i++)
1430 solo_enc_free(solo_dev->v4l2_enc[i]);
1431
1432 if (solo_dev->vh_buf)
1433 pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
1434 solo_dev->vh_buf, solo_dev->vh_dma);
1435 }
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