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Merge branch 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
[deliverable/linux.git] / drivers / staging / solo6x10 / solo6010-v4l2.c
1 /*
2 * Copyright (C) 2010 Bluecherry, LLC www.bluecherrydvr.com
3 * Copyright (C) 2010 Ben Collins <bcollins@bluecherry.net>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #include <linux/kernel.h>
21 #include <linux/module.h>
22 #include <linux/kthread.h>
23 #include <linux/freezer.h>
24
25 #include <media/v4l2-ioctl.h>
26 #include <media/v4l2-common.h>
27 #include <media/videobuf-dma-sg.h>
28
29 #include "solo6010.h"
30 #include "solo6010-tw28.h"
31
32 #define SOLO_HW_BPL 2048
33 #define SOLO_DISP_PIX_FIELD V4L2_FIELD_INTERLACED
34
35 /* Image size is two fields, SOLO_HW_BPL is one horizontal line */
36 #define solo_vlines(__solo) (__solo->video_vsize * 2)
37 #define solo_image_size(__solo) (solo_bytesperline(__solo) * \
38 solo_vlines(__solo))
39 #define solo_bytesperline(__solo) (__solo->video_hsize * 2)
40
41 #define MIN_VID_BUFFERS 4
42
43 /* Simple file handle */
44 struct solo_filehandle {
45 struct solo6010_dev *solo_dev;
46 struct videobuf_queue vidq;
47 struct task_struct *kthread;
48 spinlock_t slock;
49 int old_write;
50 struct list_head vidq_active;
51 struct p2m_desc desc[SOLO_NR_P2M_DESC];
52 int desc_idx;
53 };
54
55 unsigned video_nr = -1;
56 module_param(video_nr, uint, 0644);
57 MODULE_PARM_DESC(video_nr, "videoX start number, -1 is autodetect (default)");
58
59 static void erase_on(struct solo6010_dev *solo_dev)
60 {
61 solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, SOLO_VO_DISP_ERASE_ON);
62 solo_dev->erasing = 1;
63 solo_dev->frame_blank = 0;
64 }
65
66 static int erase_off(struct solo6010_dev *solo_dev)
67 {
68 if (!solo_dev->erasing)
69 return 0;
70
71 /* First time around, assert erase off */
72 if (!solo_dev->frame_blank)
73 solo_reg_write(solo_dev, SOLO_VO_DISP_ERASE, 0);
74 /* Keep the erasing flag on for 8 frames minimum */
75 if (solo_dev->frame_blank++ >= 8)
76 solo_dev->erasing = 0;
77
78 return 1;
79 }
80
81 void solo_video_in_isr(struct solo6010_dev *solo_dev)
82 {
83 solo_reg_write(solo_dev, SOLO_IRQ_STAT, SOLO_IRQ_VIDEO_IN);
84 wake_up_interruptible(&solo_dev->disp_thread_wait);
85 }
86
87 static void solo_win_setup(struct solo6010_dev *solo_dev, u8 ch,
88 int sx, int sy, int ex, int ey, int scale)
89 {
90 if (ch >= solo_dev->nr_chans)
91 return;
92
93 /* Here, we just keep window/channel the same */
94 solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL0(ch),
95 SOLO_VI_WIN_CHANNEL(ch) |
96 SOLO_VI_WIN_SX(sx) |
97 SOLO_VI_WIN_EX(ex) |
98 SOLO_VI_WIN_SCALE(scale));
99
100 solo_reg_write(solo_dev, SOLO_VI_WIN_CTRL1(ch),
101 SOLO_VI_WIN_SY(sy) |
102 SOLO_VI_WIN_EY(ey));
103 }
104
105 static int solo_v4l2_ch_ext_4up(struct solo6010_dev *solo_dev, u8 idx, int on)
106 {
107 u8 ch = idx * 4;
108
109 if (ch >= solo_dev->nr_chans)
110 return -EINVAL;
111
112 if (!on) {
113 u8 i;
114 for (i = ch; i < ch + 4; i++)
115 solo_win_setup(solo_dev, i, solo_dev->video_hsize,
116 solo_vlines(solo_dev),
117 solo_dev->video_hsize,
118 solo_vlines(solo_dev), 0);
119 return 0;
120 }
121
122 /* Row 1 */
123 solo_win_setup(solo_dev, ch, 0, 0, solo_dev->video_hsize / 2,
124 solo_vlines(solo_dev) / 2, 3);
125 solo_win_setup(solo_dev, ch + 1, solo_dev->video_hsize / 2, 0,
126 solo_dev->video_hsize, solo_vlines(solo_dev) / 2, 3);
127 /* Row 2 */
128 solo_win_setup(solo_dev, ch + 2, 0, solo_vlines(solo_dev) / 2,
129 solo_dev->video_hsize / 2, solo_vlines(solo_dev), 3);
130 solo_win_setup(solo_dev, ch + 3, solo_dev->video_hsize / 2,
131 solo_vlines(solo_dev) / 2, solo_dev->video_hsize,
132 solo_vlines(solo_dev), 3);
133
134 return 0;
135 }
136
137 static int solo_v4l2_ch_ext_16up(struct solo6010_dev *solo_dev, int on)
138 {
139 int sy, ysize, hsize, i;
140
141 if (!on) {
142 for (i = 0; i < 16; i++)
143 solo_win_setup(solo_dev, i, solo_dev->video_hsize,
144 solo_vlines(solo_dev),
145 solo_dev->video_hsize,
146 solo_vlines(solo_dev), 0);
147 return 0;
148 }
149
150 ysize = solo_vlines(solo_dev) / 4;
151 hsize = solo_dev->video_hsize / 4;
152
153 for (sy = 0, i = 0; i < 4; i++, sy += ysize) {
154 solo_win_setup(solo_dev, i * 4, 0, sy, hsize,
155 sy + ysize, 5);
156 solo_win_setup(solo_dev, (i * 4) + 1, hsize, sy,
157 hsize * 2, sy + ysize, 5);
158 solo_win_setup(solo_dev, (i * 4) + 2, hsize * 2, sy,
159 hsize * 3, sy + ysize, 5);
160 solo_win_setup(solo_dev, (i * 4) + 3, hsize * 3, sy,
161 solo_dev->video_hsize, sy + ysize, 5);
162 }
163
164 return 0;
165 }
166
167 static int solo_v4l2_ch(struct solo6010_dev *solo_dev, u8 ch, int on)
168 {
169 u8 ext_ch;
170
171 if (ch < solo_dev->nr_chans) {
172 solo_win_setup(solo_dev, ch, on ? 0 : solo_dev->video_hsize,
173 on ? 0 : solo_vlines(solo_dev),
174 solo_dev->video_hsize, solo_vlines(solo_dev),
175 on ? 1 : 0);
176 return 0;
177 }
178
179 if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
180 return -EINVAL;
181
182 ext_ch = ch - solo_dev->nr_chans;
183
184 /* 4up's first */
185 if (ext_ch < 4)
186 return solo_v4l2_ch_ext_4up(solo_dev, ext_ch, on);
187
188 /* Remaining case is 16up for 16-port */
189 return solo_v4l2_ch_ext_16up(solo_dev, on);
190 }
191
192 static int solo_v4l2_set_ch(struct solo6010_dev *solo_dev, u8 ch)
193 {
194 if (ch >= solo_dev->nr_chans + solo_dev->nr_ext)
195 return -EINVAL;
196
197 erase_on(solo_dev);
198
199 solo_v4l2_ch(solo_dev, solo_dev->cur_disp_ch, 0);
200 solo_v4l2_ch(solo_dev, ch, 1);
201
202 solo_dev->cur_disp_ch = ch;
203
204 return 0;
205 }
206
207 static void disp_reset_desc(struct solo_filehandle *fh)
208 {
209 /* We use desc mode, which ignores desc 0 */
210 memset(fh->desc, 0, sizeof(*fh->desc));
211 fh->desc_idx = 1;
212 }
213
214 static int disp_flush_descs(struct solo_filehandle *fh)
215 {
216 int ret;
217
218 if (!fh->desc_idx)
219 return 0;
220
221 ret = solo_p2m_dma_desc(fh->solo_dev, SOLO_P2M_DMA_ID_DISP,
222 fh->desc, fh->desc_idx);
223 disp_reset_desc(fh);
224
225 return ret;
226 }
227
228 static int disp_push_desc(struct solo_filehandle *fh, dma_addr_t dma_addr,
229 u32 ext_addr, int size, int repeat, int ext_size)
230 {
231 if (fh->desc_idx >= SOLO_NR_P2M_DESC) {
232 int ret = disp_flush_descs(fh);
233 if (ret)
234 return ret;
235 }
236
237 solo_p2m_push_desc(&fh->desc[fh->desc_idx], 0, dma_addr, ext_addr,
238 size, repeat, ext_size);
239 fh->desc_idx++;
240
241 return 0;
242 }
243
244 static void solo_fillbuf(struct solo_filehandle *fh,
245 struct videobuf_buffer *vb)
246 {
247 struct solo6010_dev *solo_dev = fh->solo_dev;
248 struct videobuf_dmabuf *vbuf;
249 unsigned int fdma_addr;
250 int error = 1;
251 int i;
252 struct scatterlist *sg;
253 dma_addr_t sg_dma;
254 int sg_size_left;
255
256 vbuf = videobuf_to_dma(vb);
257 if (!vbuf)
258 goto finish_buf;
259
260 if (erase_off(solo_dev)) {
261 int i;
262
263 /* Just blit to the entire sg list, ignoring size */
264 for_each_sg(vbuf->sglist, sg, vbuf->sglen, i) {
265 void *p = sg_virt(sg);
266 size_t len = sg_dma_len(sg);
267
268 for (i = 0; i < len; i += 2) {
269 ((u8 *)p)[i] = 0x80;
270 ((u8 *)p)[i + 1] = 0x00;
271 }
272 }
273
274 error = 0;
275 goto finish_buf;
276 }
277
278 disp_reset_desc(fh);
279 sg = vbuf->sglist;
280 sg_dma = sg_dma_address(sg);
281 sg_size_left = sg_dma_len(sg);
282
283 fdma_addr = SOLO_DISP_EXT_ADDR(solo_dev) + (fh->old_write *
284 (SOLO_HW_BPL * solo_vlines(solo_dev)));
285
286 for (i = 0; i < solo_vlines(solo_dev); i++) {
287 int line_len = solo_bytesperline(solo_dev);
288 int lines;
289
290 if (!sg_size_left) {
291 sg = sg_next(sg);
292 if (sg == NULL)
293 goto finish_buf;
294 sg_dma = sg_dma_address(sg);
295 sg_size_left = sg_dma_len(sg);
296 }
297
298 /* No room for an entire line, so chunk it up */
299 if (sg_size_left < line_len) {
300 int this_addr = fdma_addr;
301
302 while (line_len > 0) {
303 int this_write;
304
305 if (!sg_size_left) {
306 sg = sg_next(sg);
307 if (sg == NULL)
308 goto finish_buf;
309 sg_dma = sg_dma_address(sg);
310 sg_size_left = sg_dma_len(sg);
311 }
312
313 this_write = min(sg_size_left, line_len);
314
315 if (disp_push_desc(fh, sg_dma, this_addr,
316 this_write, 0, 0))
317 goto finish_buf;
318
319 line_len -= this_write;
320 sg_size_left -= this_write;
321 sg_dma += this_write;
322 this_addr += this_write;
323 }
324
325 fdma_addr += SOLO_HW_BPL;
326 continue;
327 }
328
329 /* Shove as many lines into a repeating descriptor as possible */
330 lines = min(sg_size_left / line_len,
331 solo_vlines(solo_dev) - i);
332
333 if (disp_push_desc(fh, sg_dma, fdma_addr, line_len,
334 lines - 1, SOLO_HW_BPL))
335 goto finish_buf;
336
337 i += lines - 1;
338 fdma_addr += SOLO_HW_BPL * lines;
339 sg_dma += lines * line_len;
340 sg_size_left -= lines * line_len;
341 }
342
343 error = disp_flush_descs(fh);
344
345 finish_buf:
346 if (error) {
347 vb->state = VIDEOBUF_ERROR;
348 } else {
349 vb->size = solo_vlines(solo_dev) * solo_bytesperline(solo_dev);
350 vb->state = VIDEOBUF_DONE;
351 vb->field_count++;
352 do_gettimeofday(&vb->ts);
353 }
354
355 wake_up(&vb->done);
356
357 return;
358 }
359
360 static void solo_thread_try(struct solo_filehandle *fh)
361 {
362 struct videobuf_buffer *vb;
363 unsigned int cur_write;
364
365 for (;;) {
366 spin_lock(&fh->slock);
367
368 if (list_empty(&fh->vidq_active))
369 break;
370
371 vb = list_first_entry(&fh->vidq_active, struct videobuf_buffer,
372 queue);
373
374 if (!waitqueue_active(&vb->done))
375 break;
376
377 cur_write = SOLO_VI_STATUS0_PAGE(solo_reg_read(fh->solo_dev,
378 SOLO_VI_STATUS0));
379 if (cur_write == fh->old_write)
380 break;
381
382 fh->old_write = cur_write;
383 list_del(&vb->queue);
384
385 spin_unlock(&fh->slock);
386
387 solo_fillbuf(fh, vb);
388 }
389
390 assert_spin_locked(&fh->slock);
391 spin_unlock(&fh->slock);
392 }
393
394 static int solo_thread(void *data)
395 {
396 struct solo_filehandle *fh = data;
397 struct solo6010_dev *solo_dev = fh->solo_dev;
398 DECLARE_WAITQUEUE(wait, current);
399
400 set_freezable();
401 add_wait_queue(&solo_dev->disp_thread_wait, &wait);
402
403 for (;;) {
404 long timeout = schedule_timeout_interruptible(HZ);
405 if (timeout == -ERESTARTSYS || kthread_should_stop())
406 break;
407 solo_thread_try(fh);
408 try_to_freeze();
409 }
410
411 remove_wait_queue(&solo_dev->disp_thread_wait, &wait);
412
413 return 0;
414 }
415
416 static int solo_start_thread(struct solo_filehandle *fh)
417 {
418 fh->kthread = kthread_run(solo_thread, fh, SOLO6010_NAME "_disp");
419
420 if (IS_ERR(fh->kthread))
421 return PTR_ERR(fh->kthread);
422
423 return 0;
424 }
425
426 static void solo_stop_thread(struct solo_filehandle *fh)
427 {
428 if (fh->kthread) {
429 kthread_stop(fh->kthread);
430 fh->kthread = NULL;
431 }
432 }
433
434 static int solo_buf_setup(struct videobuf_queue *vq, unsigned int *count,
435 unsigned int *size)
436 {
437 struct solo_filehandle *fh = vq->priv_data;
438 struct solo6010_dev *solo_dev = fh->solo_dev;
439
440 *size = solo_image_size(solo_dev);
441
442 if (*count < MIN_VID_BUFFERS)
443 *count = MIN_VID_BUFFERS;
444
445 return 0;
446 }
447
448 static int solo_buf_prepare(struct videobuf_queue *vq,
449 struct videobuf_buffer *vb, enum v4l2_field field)
450 {
451 struct solo_filehandle *fh = vq->priv_data;
452 struct solo6010_dev *solo_dev = fh->solo_dev;
453
454 vb->size = solo_image_size(solo_dev);
455 if (vb->baddr != 0 && vb->bsize < vb->size)
456 return -EINVAL;
457
458 /* XXX: These properties only change when queue is idle */
459 vb->width = solo_dev->video_hsize;
460 vb->height = solo_vlines(solo_dev);
461 vb->bytesperline = solo_bytesperline(solo_dev);
462 vb->field = field;
463
464 if (vb->state == VIDEOBUF_NEEDS_INIT) {
465 int rc = videobuf_iolock(vq, vb, NULL);
466 if (rc < 0) {
467 struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
468 videobuf_dma_unmap(vq->dev, dma);
469 videobuf_dma_free(dma);
470 vb->state = VIDEOBUF_NEEDS_INIT;
471 return rc;
472 }
473 }
474 vb->state = VIDEOBUF_PREPARED;
475
476 return 0;
477 }
478
479 static void solo_buf_queue(struct videobuf_queue *vq,
480 struct videobuf_buffer *vb)
481 {
482 struct solo_filehandle *fh = vq->priv_data;
483 struct solo6010_dev *solo_dev = fh->solo_dev;
484
485 vb->state = VIDEOBUF_QUEUED;
486 list_add_tail(&vb->queue, &fh->vidq_active);
487 wake_up_interruptible(&solo_dev->disp_thread_wait);
488 }
489
490 static void solo_buf_release(struct videobuf_queue *vq,
491 struct videobuf_buffer *vb)
492 {
493 struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
494
495 videobuf_dma_unmap(vq->dev, dma);
496 videobuf_dma_free(dma);
497 vb->state = VIDEOBUF_NEEDS_INIT;
498 }
499
500 static struct videobuf_queue_ops solo_video_qops = {
501 .buf_setup = solo_buf_setup,
502 .buf_prepare = solo_buf_prepare,
503 .buf_queue = solo_buf_queue,
504 .buf_release = solo_buf_release,
505 };
506
507 static unsigned int solo_v4l2_poll(struct file *file,
508 struct poll_table_struct *wait)
509 {
510 struct solo_filehandle *fh = file->private_data;
511
512 return videobuf_poll_stream(file, &fh->vidq, wait);
513 }
514
515 static int solo_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
516 {
517 struct solo_filehandle *fh = file->private_data;
518
519 return videobuf_mmap_mapper(&fh->vidq, vma);
520 }
521
522 static int solo_v4l2_open(struct file *file)
523 {
524 struct solo6010_dev *solo_dev = video_drvdata(file);
525 struct solo_filehandle *fh;
526 int ret;
527
528 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
529 if (fh == NULL)
530 return -ENOMEM;
531
532 spin_lock_init(&fh->slock);
533 INIT_LIST_HEAD(&fh->vidq_active);
534 fh->solo_dev = solo_dev;
535 file->private_data = fh;
536
537 ret = solo_start_thread(fh);
538 if (ret) {
539 kfree(fh);
540 return ret;
541 }
542
543 videobuf_queue_sg_init(&fh->vidq, &solo_video_qops,
544 &solo_dev->pdev->dev, &fh->slock,
545 V4L2_BUF_TYPE_VIDEO_CAPTURE,
546 SOLO_DISP_PIX_FIELD,
547 sizeof(struct videobuf_buffer), fh, NULL);
548
549 return 0;
550 }
551
552 static ssize_t solo_v4l2_read(struct file *file, char __user *data,
553 size_t count, loff_t *ppos)
554 {
555 struct solo_filehandle *fh = file->private_data;
556
557 return videobuf_read_stream(&fh->vidq, data, count, ppos, 0,
558 file->f_flags & O_NONBLOCK);
559 }
560
561 static int solo_v4l2_release(struct file *file)
562 {
563 struct solo_filehandle *fh = file->private_data;
564
565 videobuf_stop(&fh->vidq);
566 videobuf_mmap_free(&fh->vidq);
567 solo_stop_thread(fh);
568 kfree(fh);
569
570 return 0;
571 }
572
573 static int solo_querycap(struct file *file, void *priv,
574 struct v4l2_capability *cap)
575 {
576 struct solo_filehandle *fh = priv;
577 struct solo6010_dev *solo_dev = fh->solo_dev;
578
579 strcpy(cap->driver, SOLO6010_NAME);
580 strcpy(cap->card, "Softlogic 6010");
581 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI %s",
582 pci_name(solo_dev->pdev));
583 cap->version = SOLO6010_VER_NUM;
584 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
585 V4L2_CAP_READWRITE |
586 V4L2_CAP_STREAMING;
587 return 0;
588 }
589
590 static int solo_enum_ext_input(struct solo6010_dev *solo_dev,
591 struct v4l2_input *input)
592 {
593 static const char *dispnames_1[] = { "4UP" };
594 static const char *dispnames_2[] = { "4UP-1", "4UP-2" };
595 static const char *dispnames_5[] = {
596 "4UP-1", "4UP-2", "4UP-3", "4UP-4", "16UP"
597 };
598 const char **dispnames;
599
600 if (input->index >= (solo_dev->nr_chans + solo_dev->nr_ext))
601 return -EINVAL;
602
603 if (solo_dev->nr_ext == 5)
604 dispnames = dispnames_5;
605 else if (solo_dev->nr_ext == 2)
606 dispnames = dispnames_2;
607 else
608 dispnames = dispnames_1;
609
610 snprintf(input->name, sizeof(input->name), "Multi %s",
611 dispnames[input->index - solo_dev->nr_chans]);
612
613 return 0;
614 }
615
616 static int solo_enum_input(struct file *file, void *priv,
617 struct v4l2_input *input)
618 {
619 struct solo_filehandle *fh = priv;
620 struct solo6010_dev *solo_dev = fh->solo_dev;
621
622 if (input->index >= solo_dev->nr_chans) {
623 int ret = solo_enum_ext_input(solo_dev, input);
624 if (ret < 0)
625 return ret;
626 } else {
627 snprintf(input->name, sizeof(input->name), "Camera %d",
628 input->index + 1);
629
630 /* We can only check this for normal inputs */
631 if (!tw28_get_video_status(solo_dev, input->index))
632 input->status = V4L2_IN_ST_NO_SIGNAL;
633 }
634
635 input->type = V4L2_INPUT_TYPE_CAMERA;
636
637 if (solo_dev->video_type == SOLO_VO_FMT_TYPE_NTSC)
638 input->std = V4L2_STD_NTSC_M;
639 else
640 input->std = V4L2_STD_PAL_B;
641
642 return 0;
643 }
644
645 static int solo_set_input(struct file *file, void *priv, unsigned int index)
646 {
647 struct solo_filehandle *fh = priv;
648
649 return solo_v4l2_set_ch(fh->solo_dev, index);
650 }
651
652 static int solo_get_input(struct file *file, void *priv, unsigned int *index)
653 {
654 struct solo_filehandle *fh = priv;
655
656 *index = fh->solo_dev->cur_disp_ch;
657
658 return 0;
659 }
660
661 static int solo_enum_fmt_cap(struct file *file, void *priv,
662 struct v4l2_fmtdesc *f)
663 {
664 if (f->index)
665 return -EINVAL;
666
667 f->pixelformat = V4L2_PIX_FMT_UYVY;
668 strlcpy(f->description, "UYUV 4:2:2 Packed", sizeof(f->description));
669
670 return 0;
671 }
672
673 static int solo_try_fmt_cap(struct file *file, void *priv,
674 struct v4l2_format *f)
675 {
676 struct solo_filehandle *fh = priv;
677 struct solo6010_dev *solo_dev = fh->solo_dev;
678 struct v4l2_pix_format *pix = &f->fmt.pix;
679 int image_size = solo_image_size(solo_dev);
680
681 /* Check supported sizes */
682 if (pix->width != solo_dev->video_hsize)
683 pix->width = solo_dev->video_hsize;
684 if (pix->height != solo_vlines(solo_dev))
685 pix->height = solo_vlines(solo_dev);
686 if (pix->sizeimage != image_size)
687 pix->sizeimage = image_size;
688
689 /* Check formats */
690 if (pix->field == V4L2_FIELD_ANY)
691 pix->field = SOLO_DISP_PIX_FIELD;
692
693 if (pix->pixelformat != V4L2_PIX_FMT_UYVY ||
694 pix->field != SOLO_DISP_PIX_FIELD ||
695 pix->colorspace != V4L2_COLORSPACE_SMPTE170M)
696 return -EINVAL;
697
698 return 0;
699 }
700
701 static int solo_set_fmt_cap(struct file *file, void *priv,
702 struct v4l2_format *f)
703 {
704 struct solo_filehandle *fh = priv;
705
706 if (videobuf_queue_is_busy(&fh->vidq))
707 return -EBUSY;
708
709 /* For right now, if it doesn't match our running config,
710 * then fail */
711 return solo_try_fmt_cap(file, priv, f);
712 }
713
714 static int solo_get_fmt_cap(struct file *file, void *priv,
715 struct v4l2_format *f)
716 {
717 struct solo_filehandle *fh = priv;
718 struct solo6010_dev *solo_dev = fh->solo_dev;
719 struct v4l2_pix_format *pix = &f->fmt.pix;
720
721 pix->width = solo_dev->video_hsize;
722 pix->height = solo_vlines(solo_dev);
723 pix->pixelformat = V4L2_PIX_FMT_UYVY;
724 pix->field = SOLO_DISP_PIX_FIELD;
725 pix->sizeimage = solo_image_size(solo_dev);
726 pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
727 pix->bytesperline = solo_bytesperline(solo_dev);
728
729 return 0;
730 }
731
732 static int solo_reqbufs(struct file *file, void *priv,
733 struct v4l2_requestbuffers *req)
734 {
735 struct solo_filehandle *fh = priv;
736
737 return videobuf_reqbufs(&fh->vidq, req);
738 }
739
740 static int solo_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf)
741 {
742 struct solo_filehandle *fh = priv;
743
744 return videobuf_querybuf(&fh->vidq, buf);
745 }
746
747 static int solo_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
748 {
749 struct solo_filehandle *fh = priv;
750
751 return videobuf_qbuf(&fh->vidq, buf);
752 }
753
754 static int solo_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
755 {
756 struct solo_filehandle *fh = priv;
757
758 return videobuf_dqbuf(&fh->vidq, buf, file->f_flags & O_NONBLOCK);
759 }
760
761 static int solo_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
762 {
763 struct solo_filehandle *fh = priv;
764
765 if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
766 return -EINVAL;
767
768 return videobuf_streamon(&fh->vidq);
769 }
770
771 static int solo_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
772 {
773 struct solo_filehandle *fh = priv;
774
775 if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
776 return -EINVAL;
777
778 return videobuf_streamoff(&fh->vidq);
779 }
780
781 static int solo_s_std(struct file *file, void *priv, v4l2_std_id *i)
782 {
783 return 0;
784 }
785
786 static const u32 solo_motion_ctrls[] = {
787 V4L2_CID_MOTION_TRACE,
788 0
789 };
790
791 static const u32 *solo_ctrl_classes[] = {
792 solo_motion_ctrls,
793 NULL
794 };
795
796 static int solo_disp_queryctrl(struct file *file, void *priv,
797 struct v4l2_queryctrl *qc)
798 {
799 qc->id = v4l2_ctrl_next(solo_ctrl_classes, qc->id);
800 if (!qc->id)
801 return -EINVAL;
802
803 switch (qc->id) {
804 #ifdef PRIVATE_CIDS
805 case V4L2_CID_MOTION_TRACE:
806 qc->type = V4L2_CTRL_TYPE_BOOLEAN;
807 qc->minimum = 0;
808 qc->maximum = qc->step = 1;
809 qc->default_value = 0;
810 strlcpy(qc->name, "Motion Detection Trace", sizeof(qc->name));
811 return 0;
812 #else
813 case V4L2_CID_MOTION_TRACE:
814 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
815 #endif
816 }
817 return -EINVAL;
818 }
819
820 static int solo_disp_g_ctrl(struct file *file, void *priv,
821 struct v4l2_control *ctrl)
822 {
823 struct solo_filehandle *fh = priv;
824 struct solo6010_dev *solo_dev = fh->solo_dev;
825
826 switch (ctrl->id) {
827 case V4L2_CID_MOTION_TRACE:
828 ctrl->value = solo_reg_read(solo_dev, SOLO_VI_MOTION_BAR)
829 ? 1 : 0;
830 return 0;
831 }
832 return -EINVAL;
833 }
834
835 static int solo_disp_s_ctrl(struct file *file, void *priv,
836 struct v4l2_control *ctrl)
837 {
838 struct solo_filehandle *fh = priv;
839 struct solo6010_dev *solo_dev = fh->solo_dev;
840
841 switch (ctrl->id) {
842 case V4L2_CID_MOTION_TRACE:
843 if (ctrl->value) {
844 solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER,
845 SOLO_VI_MOTION_Y_ADD |
846 SOLO_VI_MOTION_Y_VALUE(0x20) |
847 SOLO_VI_MOTION_CB_VALUE(0x10) |
848 SOLO_VI_MOTION_CR_VALUE(0x10));
849 solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR,
850 SOLO_VI_MOTION_CR_ADD |
851 SOLO_VI_MOTION_Y_VALUE(0x10) |
852 SOLO_VI_MOTION_CB_VALUE(0x80) |
853 SOLO_VI_MOTION_CR_VALUE(0x10));
854 } else {
855 solo_reg_write(solo_dev, SOLO_VI_MOTION_BORDER, 0);
856 solo_reg_write(solo_dev, SOLO_VI_MOTION_BAR, 0);
857 }
858 return 0;
859 }
860 return -EINVAL;
861 }
862
863 static const struct v4l2_file_operations solo_v4l2_fops = {
864 .owner = THIS_MODULE,
865 .open = solo_v4l2_open,
866 .release = solo_v4l2_release,
867 .read = solo_v4l2_read,
868 .poll = solo_v4l2_poll,
869 .mmap = solo_v4l2_mmap,
870 .ioctl = video_ioctl2,
871 };
872
873 static const struct v4l2_ioctl_ops solo_v4l2_ioctl_ops = {
874 .vidioc_querycap = solo_querycap,
875 .vidioc_s_std = solo_s_std,
876 /* Input callbacks */
877 .vidioc_enum_input = solo_enum_input,
878 .vidioc_s_input = solo_set_input,
879 .vidioc_g_input = solo_get_input,
880 /* Video capture format callbacks */
881 .vidioc_enum_fmt_vid_cap = solo_enum_fmt_cap,
882 .vidioc_try_fmt_vid_cap = solo_try_fmt_cap,
883 .vidioc_s_fmt_vid_cap = solo_set_fmt_cap,
884 .vidioc_g_fmt_vid_cap = solo_get_fmt_cap,
885 /* Streaming I/O */
886 .vidioc_reqbufs = solo_reqbufs,
887 .vidioc_querybuf = solo_querybuf,
888 .vidioc_qbuf = solo_qbuf,
889 .vidioc_dqbuf = solo_dqbuf,
890 .vidioc_streamon = solo_streamon,
891 .vidioc_streamoff = solo_streamoff,
892 /* Controls */
893 .vidioc_queryctrl = solo_disp_queryctrl,
894 .vidioc_g_ctrl = solo_disp_g_ctrl,
895 .vidioc_s_ctrl = solo_disp_s_ctrl,
896 };
897
898 static struct video_device solo_v4l2_template = {
899 .name = SOLO6010_NAME,
900 .fops = &solo_v4l2_fops,
901 .ioctl_ops = &solo_v4l2_ioctl_ops,
902 .minor = -1,
903 .release = video_device_release,
904
905 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_B,
906 .current_norm = V4L2_STD_NTSC_M,
907 };
908
909 int solo_v4l2_init(struct solo6010_dev *solo_dev)
910 {
911 int ret;
912 int i;
913
914 init_waitqueue_head(&solo_dev->disp_thread_wait);
915
916 solo_dev->vfd = video_device_alloc();
917 if (!solo_dev->vfd)
918 return -ENOMEM;
919
920 *solo_dev->vfd = solo_v4l2_template;
921 solo_dev->vfd->parent = &solo_dev->pdev->dev;
922
923 ret = video_register_device(solo_dev->vfd, VFL_TYPE_GRABBER, video_nr);
924 if (ret < 0) {
925 video_device_release(solo_dev->vfd);
926 solo_dev->vfd = NULL;
927 return ret;
928 }
929
930 video_set_drvdata(solo_dev->vfd, solo_dev);
931
932 snprintf(solo_dev->vfd->name, sizeof(solo_dev->vfd->name), "%s (%i)",
933 SOLO6010_NAME, solo_dev->vfd->num);
934
935 if (video_nr != -1)
936 video_nr++;
937
938 dev_info(&solo_dev->pdev->dev, "Display as /dev/video%d with "
939 "%d inputs (%d extended)\n", solo_dev->vfd->num,
940 solo_dev->nr_chans, solo_dev->nr_ext);
941
942 /* Cycle all the channels and clear */
943 for (i = 0; i < solo_dev->nr_chans; i++) {
944 solo_v4l2_set_ch(solo_dev, i);
945 while (erase_off(solo_dev))
946 ;/* Do nothing */
947 }
948
949 /* Set the default display channel */
950 solo_v4l2_set_ch(solo_dev, 0);
951 while (erase_off(solo_dev))
952 ;/* Do nothing */
953
954 solo6010_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
955
956 return 0;
957 }
958
959 void solo_v4l2_exit(struct solo6010_dev *solo_dev)
960 {
961 solo6010_irq_off(solo_dev, SOLO_IRQ_VIDEO_IN);
962 if (solo_dev->vfd) {
963 video_unregister_device(solo_dev->vfd);
964 solo_dev->vfd = NULL;
965 }
966 }
Linux kernel - Deliverables
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