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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#include <media/saa7146_vv.h>
Hans Verkuil1b8dac12009-02-07 11:18:05 -03002#include <media/v4l2-chip-ident.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07003
4static int max_memory = 32;
5
6module_param(max_memory, int, 0644);
7MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)");
8
9#define IS_CAPTURE_ACTIVE(fh) \
10 (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh))
11
12#define IS_OVERLAY_ACTIVE(fh) \
13 (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh))
14
15/* format descriptions for capture and preview */
16static struct saa7146_format formats[] = {
17 {
18 .name = "RGB-8 (3-3-2)",
19 .pixelformat = V4L2_PIX_FMT_RGB332,
20 .trans = RGB08_COMPOSED,
21 .depth = 8,
22 .flags = 0,
23 }, {
24 .name = "RGB-16 (5/B-6/G-5/R)",
25 .pixelformat = V4L2_PIX_FMT_RGB565,
26 .trans = RGB16_COMPOSED,
27 .depth = 16,
28 .flags = 0,
29 }, {
30 .name = "RGB-24 (B-G-R)",
31 .pixelformat = V4L2_PIX_FMT_BGR24,
32 .trans = RGB24_COMPOSED,
33 .depth = 24,
34 .flags = 0,
35 }, {
36 .name = "RGB-32 (B-G-R)",
37 .pixelformat = V4L2_PIX_FMT_BGR32,
38 .trans = RGB32_COMPOSED,
39 .depth = 32,
40 .flags = 0,
41 }, {
42 .name = "RGB-32 (R-G-B)",
43 .pixelformat = V4L2_PIX_FMT_RGB32,
44 .trans = RGB32_COMPOSED,
45 .depth = 32,
46 .flags = 0,
47 .swap = 0x2,
48 }, {
49 .name = "Greyscale-8",
50 .pixelformat = V4L2_PIX_FMT_GREY,
51 .trans = Y8,
52 .depth = 8,
53 .flags = 0,
54 }, {
55 .name = "YUV 4:2:2 planar (Y-Cb-Cr)",
56 .pixelformat = V4L2_PIX_FMT_YUV422P,
57 .trans = YUV422_DECOMPOSED,
58 .depth = 16,
59 .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR,
60 }, {
61 .name = "YVU 4:2:0 planar (Y-Cb-Cr)",
62 .pixelformat = V4L2_PIX_FMT_YVU420,
63 .trans = YUV420_DECOMPOSED,
64 .depth = 12,
65 .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR,
66 }, {
67 .name = "YUV 4:2:0 planar (Y-Cb-Cr)",
68 .pixelformat = V4L2_PIX_FMT_YUV420,
69 .trans = YUV420_DECOMPOSED,
70 .depth = 12,
71 .flags = FORMAT_IS_PLANAR,
72 }, {
73 .name = "YUV 4:2:2 (U-Y-V-Y)",
74 .pixelformat = V4L2_PIX_FMT_UYVY,
75 .trans = YUV422_COMPOSED,
76 .depth = 16,
77 .flags = 0,
78 }
79};
80
81/* unfortunately, the saa7146 contains a bug which prevents it from doing on-the-fly byte swaps.
82 due to this, it's impossible to provide additional *packed* formats, which are simply byte swapped
83 (like V4L2_PIX_FMT_YUYV) ... 8-( */
84
85static int NUM_FORMATS = sizeof(formats)/sizeof(struct saa7146_format);
86
87struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc)
88{
89 int i, j = NUM_FORMATS;
90
91 for (i = 0; i < j; i++) {
92 if (formats[i].pixelformat == fourcc) {
93 return formats+i;
94 }
95 }
96
97 DEB_D(("unknown pixelformat:'%4.4s'\n",(char *)&fourcc));
98 return NULL;
99}
100
Hans Verkuilb9600742009-01-18 19:59:11 -0300101static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103int saa7146_start_preview(struct saa7146_fh *fh)
104{
105 struct saa7146_dev *dev = fh->dev;
106 struct saa7146_vv *vv = dev->vv_data;
Hans Verkuilb9600742009-01-18 19:59:11 -0300107 struct v4l2_format fmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 int ret = 0, err = 0;
109
110 DEB_EE(("dev:%p, fh:%p\n",dev,fh));
111
112 /* check if we have overlay informations */
113 if( NULL == fh->ov.fh ) {
114 DEB_D(("no overlay data available. try S_FMT first.\n"));
115 return -EAGAIN;
116 }
117
118 /* check if streaming capture is running */
119 if (IS_CAPTURE_ACTIVE(fh) != 0) {
120 DEB_D(("streaming capture is active.\n"));
121 return -EBUSY;
122 }
123
124 /* check if overlay is running */
125 if (IS_OVERLAY_ACTIVE(fh) != 0) {
126 if (vv->video_fh == fh) {
127 DEB_D(("overlay is already active.\n"));
128 return 0;
129 }
130 DEB_D(("overlay is already active in another open.\n"));
131 return -EBUSY;
132 }
133
134 if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) {
135 DEB_D(("cannot get necessary overlay resources\n"));
136 return -EBUSY;
137 }
138
Hans Verkuilb9600742009-01-18 19:59:11 -0300139 fmt.fmt.win = fh->ov.win;
140 err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 if (0 != err) {
142 saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
143 return -EBUSY;
144 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300145 fh->ov.win = fmt.fmt.win;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 vv->ov_data = &fh->ov;
147
148 DEB_D(("%dx%d+%d+%d %s field=%s\n",
149 fh->ov.win.w.width,fh->ov.win.w.height,
150 fh->ov.win.w.left,fh->ov.win.w.top,
151 vv->ov_fmt->name,v4l2_field_names[fh->ov.win.field]));
152
153 if (0 != (ret = saa7146_enable_overlay(fh))) {
154 DEB_D(("enabling overlay failed: %d\n",ret));
155 saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
156 return ret;
157 }
158
159 vv->video_status = STATUS_OVERLAY;
160 vv->video_fh = fh;
161
162 return 0;
163}
Adrian Bunk5d7dc8c2006-04-11 10:26:57 -0300164EXPORT_SYMBOL_GPL(saa7146_start_preview);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
166int saa7146_stop_preview(struct saa7146_fh *fh)
167{
168 struct saa7146_dev *dev = fh->dev;
169 struct saa7146_vv *vv = dev->vv_data;
170
171 DEB_EE(("dev:%p, fh:%p\n",dev,fh));
172
173 /* check if streaming capture is running */
174 if (IS_CAPTURE_ACTIVE(fh) != 0) {
175 DEB_D(("streaming capture is active.\n"));
176 return -EBUSY;
177 }
178
179 /* check if overlay is running at all */
180 if ((vv->video_status & STATUS_OVERLAY) == 0) {
181 DEB_D(("no active overlay.\n"));
182 return 0;
183 }
184
185 if (vv->video_fh != fh) {
186 DEB_D(("overlay is active, but in another open.\n"));
187 return -EBUSY;
188 }
189
190 vv->video_status = 0;
191 vv->video_fh = NULL;
192
193 saa7146_disable_overlay(fh);
194
195 saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
196
197 return 0;
198}
Adrian Bunk5d7dc8c2006-04-11 10:26:57 -0300199EXPORT_SYMBOL_GPL(saa7146_stop_preview);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201/********************************************************************************/
202/* device controls */
203
204static struct v4l2_queryctrl controls[] = {
205 {
206 .id = V4L2_CID_BRIGHTNESS,
207 .name = "Brightness",
208 .minimum = 0,
209 .maximum = 255,
210 .step = 1,
211 .default_value = 128,
212 .type = V4L2_CTRL_TYPE_INTEGER,
Hans Verkuil1b8dac12009-02-07 11:18:05 -0300213 .flags = V4L2_CTRL_FLAG_SLIDER,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 },{
215 .id = V4L2_CID_CONTRAST,
216 .name = "Contrast",
217 .minimum = 0,
218 .maximum = 127,
219 .step = 1,
220 .default_value = 64,
221 .type = V4L2_CTRL_TYPE_INTEGER,
Hans Verkuil1b8dac12009-02-07 11:18:05 -0300222 .flags = V4L2_CTRL_FLAG_SLIDER,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 },{
224 .id = V4L2_CID_SATURATION,
225 .name = "Saturation",
226 .minimum = 0,
227 .maximum = 127,
228 .step = 1,
229 .default_value = 64,
230 .type = V4L2_CTRL_TYPE_INTEGER,
Hans Verkuil1b8dac12009-02-07 11:18:05 -0300231 .flags = V4L2_CTRL_FLAG_SLIDER,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 },{
233 .id = V4L2_CID_VFLIP,
Hans Verkuil1b8dac12009-02-07 11:18:05 -0300234 .name = "Vertical Flip",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 .minimum = 0,
236 .maximum = 1,
237 .type = V4L2_CTRL_TYPE_BOOLEAN,
238 },{
239 .id = V4L2_CID_HFLIP,
Hans Verkuil1b8dac12009-02-07 11:18:05 -0300240 .name = "Horizontal Flip",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 .minimum = 0,
242 .maximum = 1,
243 .type = V4L2_CTRL_TYPE_BOOLEAN,
244 },
245};
246static int NUM_CONTROLS = sizeof(controls)/sizeof(struct v4l2_queryctrl);
247
248#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 0)
249
250static struct v4l2_queryctrl* ctrl_by_id(int id)
251{
252 int i;
253
254 for (i = 0; i < NUM_CONTROLS; i++)
255 if (controls[i].id == id)
256 return controls+i;
257 return NULL;
258}
259
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260/********************************************************************************/
261/* common pagetable functions */
262
263static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf)
264{
265 struct pci_dev *pci = dev->pci;
Mauro Carvalho Chehabc1accaa2007-08-23 16:37:49 -0300266 struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
267 struct scatterlist *list = dma->sglist;
268 int length = dma->sglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
270
271 DEB_EE(("dev:%p, buf:%p, sg_len:%d\n",dev,buf,length));
272
273 if( 0 != IS_PLANAR(sfmt->trans)) {
274 struct saa7146_pgtable *pt1 = &buf->pt[0];
275 struct saa7146_pgtable *pt2 = &buf->pt[1];
276 struct saa7146_pgtable *pt3 = &buf->pt[2];
Al Viroa36ef6b2008-06-22 14:19:19 -0300277 __le32 *ptr1, *ptr2, *ptr3;
278 __le32 fill;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279
280 int size = buf->fmt->width*buf->fmt->height;
281 int i,p,m1,m2,m3,o1,o2;
282
283 switch( sfmt->depth ) {
284 case 12: {
285 /* create some offsets inside the page table */
286 m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1;
287 m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1;
288 m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1;
289 o1 = size%PAGE_SIZE;
290 o2 = (size+(size/4))%PAGE_SIZE;
291 DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2));
292 break;
293 }
294 case 16: {
295 /* create some offsets inside the page table */
296 m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1;
297 m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1;
298 m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1;
299 o1 = size%PAGE_SIZE;
300 o2 = (size+(size/2))%PAGE_SIZE;
301 DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2));
302 break;
303 }
304 default: {
305 return -1;
306 }
307 }
308
309 ptr1 = pt1->cpu;
310 ptr2 = pt2->cpu;
311 ptr3 = pt3->cpu;
312
313 /* walk all pages, copy all page addresses to ptr1 */
314 for (i = 0; i < length; i++, list++) {
315 for (p = 0; p * 4096 < list->length; p++, ptr1++) {
316 *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset);
317 }
318 }
319/*
320 ptr1 = pt1->cpu;
321 for(j=0;j<40;j++) {
322 printk("ptr1 %d: 0x%08x\n",j,ptr1[j]);
323 }
324*/
325
326 /* if we have a user buffer, the first page may not be
327 aligned to a page boundary. */
Hans Verkuil429e9082008-07-27 14:08:54 -0300328 pt1->offset = dma->sglist->offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 pt2->offset = pt1->offset+o1;
330 pt3->offset = pt1->offset+o2;
331
332 /* create video-dma2 page table */
333 ptr1 = pt1->cpu;
334 for(i = m1; i <= m2 ; i++, ptr2++) {
335 *ptr2 = ptr1[i];
336 }
337 fill = *(ptr2-1);
338 for(;i<1024;i++,ptr2++) {
339 *ptr2 = fill;
340 }
341 /* create video-dma3 page table */
342 ptr1 = pt1->cpu;
343 for(i = m2; i <= m3; i++,ptr3++) {
344 *ptr3 = ptr1[i];
345 }
346 fill = *(ptr3-1);
347 for(;i<1024;i++,ptr3++) {
348 *ptr3 = fill;
349 }
350 /* finally: finish up video-dma1 page table */
351 ptr1 = pt1->cpu+m1;
352 fill = pt1->cpu[m1];
353 for(i=m1;i<1024;i++,ptr1++) {
354 *ptr1 = fill;
355 }
356/*
357 ptr1 = pt1->cpu;
358 ptr2 = pt2->cpu;
359 ptr3 = pt3->cpu;
360 for(j=0;j<40;j++) {
361 printk("ptr1 %d: 0x%08x\n",j,ptr1[j]);
362 }
363 for(j=0;j<40;j++) {
364 printk("ptr2 %d: 0x%08x\n",j,ptr2[j]);
365 }
366 for(j=0;j<40;j++) {
367 printk("ptr3 %d: 0x%08x\n",j,ptr3[j]);
368 }
369*/
370 } else {
371 struct saa7146_pgtable *pt = &buf->pt[0];
372 return saa7146_pgtable_build_single(pci, pt, list, length);
373 }
374
375 return 0;
376}
377
378
379/********************************************************************************/
380/* file operations */
381
382static int video_begin(struct saa7146_fh *fh)
383{
384 struct saa7146_dev *dev = fh->dev;
385 struct saa7146_vv *vv = dev->vv_data;
386 struct saa7146_format *fmt = NULL;
387 unsigned int resource;
388 int ret = 0, err = 0;
389
390 DEB_EE(("dev:%p, fh:%p\n",dev,fh));
391
392 if ((vv->video_status & STATUS_CAPTURE) != 0) {
393 if (vv->video_fh == fh) {
394 DEB_S(("already capturing.\n"));
395 return 0;
396 }
397 DEB_S(("already capturing in another open.\n"));
398 return -EBUSY;
399 }
400
401 if ((vv->video_status & STATUS_OVERLAY) != 0) {
402 DEB_S(("warning: suspending overlay video for streaming capture.\n"));
403 vv->ov_suspend = vv->video_fh;
404 err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
405 if (0 != err) {
406 DEB_D(("suspending video failed. aborting\n"));
407 return err;
408 }
409 }
410
411 fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
412 /* we need to have a valid format set here */
413 BUG_ON(NULL == fmt);
414
415 if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
416 resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS;
417 } else {
418 resource = RESOURCE_DMA1_HPS;
419 }
420
421 ret = saa7146_res_get(fh, resource);
422 if (0 == ret) {
423 DEB_S(("cannot get capture resource %d\n",resource));
424 if (vv->ov_suspend != NULL) {
425 saa7146_start_preview(vv->ov_suspend);
426 vv->ov_suspend = NULL;
427 }
428 return -EBUSY;
429 }
430
431 /* clear out beginning of streaming bit (rps register 0)*/
432 saa7146_write(dev, MC2, MASK_27 );
433
434 /* enable rps0 irqs */
435 SAA7146_IER_ENABLE(dev, MASK_27);
436
437 vv->video_fh = fh;
438 vv->video_status = STATUS_CAPTURE;
439
440 return 0;
441}
442
443static int video_end(struct saa7146_fh *fh, struct file *file)
444{
445 struct saa7146_dev *dev = fh->dev;
446 struct saa7146_vv *vv = dev->vv_data;
447 struct saa7146_format *fmt = NULL;
448 unsigned long flags;
449 unsigned int resource;
450 u32 dmas = 0;
451 DEB_EE(("dev:%p, fh:%p\n",dev,fh));
452
453 if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
454 DEB_S(("not capturing.\n"));
455 return 0;
456 }
457
458 if (vv->video_fh != fh) {
459 DEB_S(("capturing, but in another open.\n"));
460 return -EBUSY;
461 }
462
463 fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
464 /* we need to have a valid format set here */
465 BUG_ON(NULL == fmt);
466
467 if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
468 resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS;
469 dmas = MASK_22 | MASK_21 | MASK_20;
470 } else {
471 resource = RESOURCE_DMA1_HPS;
472 dmas = MASK_22;
473 }
474 spin_lock_irqsave(&dev->slock,flags);
475
476 /* disable rps0 */
477 saa7146_write(dev, MC1, MASK_28);
478
479 /* disable rps0 irqs */
480 SAA7146_IER_DISABLE(dev, MASK_27);
481
482 /* shut down all used video dma transfers */
483 saa7146_write(dev, MC1, dmas);
484
485 spin_unlock_irqrestore(&dev->slock, flags);
486
487 vv->video_fh = NULL;
488 vv->video_status = 0;
489
490 saa7146_res_free(fh, resource);
491
492 if (vv->ov_suspend != NULL) {
493 saa7146_start_preview(vv->ov_suspend);
494 vv->ov_suspend = NULL;
495 }
496
497 return 0;
498}
499
Hans Verkuilb9600742009-01-18 19:59:11 -0300500static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501{
Hans Verkuilb9600742009-01-18 19:59:11 -0300502 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
503
504 strcpy((char *)cap->driver, "saa7146 v4l2");
505 strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
506 sprintf((char *)cap->bus_info, "PCI:%s", pci_name(dev->pci));
507 cap->version = SAA7146_VERSION_CODE;
508 cap->capabilities =
509 V4L2_CAP_VIDEO_CAPTURE |
510 V4L2_CAP_VIDEO_OVERLAY |
511 V4L2_CAP_READWRITE |
512 V4L2_CAP_STREAMING;
513 cap->capabilities |= dev->ext_vv_data->capabilities;
514 return 0;
515}
516
517static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
518{
519 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 struct saa7146_vv *vv = dev->vv_data;
521
Hans Verkuilb9600742009-01-18 19:59:11 -0300522 *fb = vv->ov_fb;
523 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
524 return 0;
525}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526
Hans Verkuilb9600742009-01-18 19:59:11 -0300527static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
528{
529 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
530 struct saa7146_vv *vv = dev->vv_data;
531 struct saa7146_format *fmt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532
Hans Verkuilb9600742009-01-18 19:59:11 -0300533 DEB_EE(("VIDIOC_S_FBUF\n"));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534
Hans Verkuilb9600742009-01-18 19:59:11 -0300535 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
536 return -EPERM;
537
538 /* check args */
539 fmt = format_by_fourcc(dev, fb->fmt.pixelformat);
540 if (NULL == fmt)
541 return -EINVAL;
542
543 /* planar formats are not allowed for overlay video, clipping and video dma would clash */
544 if (fmt->flags & FORMAT_IS_PLANAR)
545 DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n",
546 (char *)&fmt->pixelformat));
547
548 /* check if overlay is running */
549 if (IS_OVERLAY_ACTIVE(fh) != 0) {
550 if (vv->video_fh != fh) {
551 DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n"));
552 return -EBUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553 }
554 }
555
Hans Verkuilb9600742009-01-18 19:59:11 -0300556 mutex_lock(&dev->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557
Hans Verkuilb9600742009-01-18 19:59:11 -0300558 /* ok, accept it */
559 vv->ov_fb = *fb;
560 vv->ov_fmt = fmt;
Michael Hunold84a1d9c2010-03-13 11:45:46 -0300561
562 if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) {
563 vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8;
564 DEB_D(("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline));
565 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300566
567 mutex_unlock(&dev->lock);
568 return 0;
569}
570
571static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
572{
573 if (f->index >= NUM_FORMATS)
574 return -EINVAL;
575 strlcpy((char *)f->description, formats[f->index].name,
576 sizeof(f->description));
577 f->pixelformat = formats[f->index].pixelformat;
578 return 0;
579}
580
Hans Verkuilb9600742009-01-18 19:59:11 -0300581static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c)
582{
583 const struct v4l2_queryctrl *ctrl;
584
585 if ((c->id < V4L2_CID_BASE ||
586 c->id >= V4L2_CID_LASTP1) &&
587 (c->id < V4L2_CID_PRIVATE_BASE ||
588 c->id >= V4L2_CID_PRIVATE_LASTP1))
589 return -EINVAL;
590
591 ctrl = ctrl_by_id(c->id);
592 if (ctrl == NULL)
593 return -EINVAL;
594
595 DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id));
596 *c = *ctrl;
597 return 0;
598}
599
600static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c)
601{
602 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
603 struct saa7146_vv *vv = dev->vv_data;
604 const struct v4l2_queryctrl *ctrl;
605 u32 value = 0;
606
607 ctrl = ctrl_by_id(c->id);
608 if (NULL == ctrl)
609 return -EINVAL;
610 switch (c->id) {
611 case V4L2_CID_BRIGHTNESS:
612 value = saa7146_read(dev, BCS_CTRL);
613 c->value = 0xff & (value >> 24);
614 DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 break;
Hans Verkuilb9600742009-01-18 19:59:11 -0300616 case V4L2_CID_CONTRAST:
617 value = saa7146_read(dev, BCS_CTRL);
618 c->value = 0x7f & (value >> 16);
619 DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620 break;
Hans Verkuilb9600742009-01-18 19:59:11 -0300621 case V4L2_CID_SATURATION:
622 value = saa7146_read(dev, BCS_CTRL);
623 c->value = 0x7f & (value >> 0);
624 DEB_D(("V4L2_CID_SATURATION: %d\n", c->value));
625 break;
626 case V4L2_CID_VFLIP:
627 c->value = vv->vflip;
628 DEB_D(("V4L2_CID_VFLIP: %d\n", c->value));
629 break;
630 case V4L2_CID_HFLIP:
631 c->value = vv->hflip;
632 DEB_D(("V4L2_CID_HFLIP: %d\n", c->value));
633 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 default:
Hans Verkuilb9600742009-01-18 19:59:11 -0300635 return -EINVAL;
636 }
637 return 0;
638}
639
640static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c)
641{
642 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
643 struct saa7146_vv *vv = dev->vv_data;
644 const struct v4l2_queryctrl *ctrl;
645
646 ctrl = ctrl_by_id(c->id);
647 if (NULL == ctrl) {
648 DEB_D(("unknown control %d\n", c->id));
649 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 }
651
Hans Verkuilb9600742009-01-18 19:59:11 -0300652 mutex_lock(&dev->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
Hans Verkuilb9600742009-01-18 19:59:11 -0300654 switch (ctrl->type) {
655 case V4L2_CTRL_TYPE_BOOLEAN:
656 case V4L2_CTRL_TYPE_MENU:
657 case V4L2_CTRL_TYPE_INTEGER:
658 if (c->value < ctrl->minimum)
659 c->value = ctrl->minimum;
660 if (c->value > ctrl->maximum)
661 c->value = ctrl->maximum;
662 break;
663 default:
664 /* nothing */;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666
Hans Verkuilb9600742009-01-18 19:59:11 -0300667 switch (c->id) {
668 case V4L2_CID_BRIGHTNESS: {
669 u32 value = saa7146_read(dev, BCS_CTRL);
670 value &= 0x00ffffff;
671 value |= (c->value << 24);
672 saa7146_write(dev, BCS_CTRL, value);
673 saa7146_write(dev, MC2, MASK_22 | MASK_06);
674 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300676 case V4L2_CID_CONTRAST: {
677 u32 value = saa7146_read(dev, BCS_CTRL);
678 value &= 0xff00ffff;
679 value |= (c->value << 16);
680 saa7146_write(dev, BCS_CTRL, value);
681 saa7146_write(dev, MC2, MASK_22 | MASK_06);
682 break;
683 }
684 case V4L2_CID_SATURATION: {
685 u32 value = saa7146_read(dev, BCS_CTRL);
686 value &= 0xffffff00;
687 value |= (c->value << 0);
688 saa7146_write(dev, BCS_CTRL, value);
689 saa7146_write(dev, MC2, MASK_22 | MASK_06);
690 break;
691 }
692 case V4L2_CID_HFLIP:
693 /* fixme: we can support changing VFLIP and HFLIP here... */
694 if (IS_CAPTURE_ACTIVE(fh) != 0) {
695 DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
696 mutex_unlock(&dev->lock);
Hans Verkuil5a5b9642009-02-07 11:25:05 -0300697 return -EBUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300699 vv->hflip = c->value;
700 break;
701 case V4L2_CID_VFLIP:
702 if (IS_CAPTURE_ACTIVE(fh) != 0) {
703 DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
704 mutex_unlock(&dev->lock);
Hans Verkuil5a5b9642009-02-07 11:25:05 -0300705 return -EBUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300707 vv->vflip = c->value;
708 break;
709 default:
Ingo Molnar3593cab2006-02-07 06:49:14 -0200710 mutex_unlock(&dev->lock);
Hans Verkuilb9600742009-01-18 19:59:11 -0300711 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300713 mutex_unlock(&dev->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714
Hans Verkuilb9600742009-01-18 19:59:11 -0300715 if (IS_OVERLAY_ACTIVE(fh) != 0) {
716 saa7146_stop_preview(fh);
717 saa7146_start_preview(fh);
718 }
719 return 0;
720}
721
722static int vidioc_g_parm(struct file *file, void *fh,
723 struct v4l2_streamparm *parm)
724{
Trent Piepho717167e2009-03-04 01:21:03 -0300725 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
726 struct saa7146_vv *vv = dev->vv_data;
727
Hans Verkuilb9600742009-01-18 19:59:11 -0300728 parm->parm.capture.readbuffers = 1;
Trent Piepho717167e2009-03-04 01:21:03 -0300729 v4l2_video_std_frame_period(vv->standard->id,
730 &parm->parm.capture.timeperframe);
Hans Verkuilb9600742009-01-18 19:59:11 -0300731 return 0;
732}
733
734static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
735{
736 f->fmt.pix = ((struct saa7146_fh *)fh)->video_fmt;
737 return 0;
738}
739
740static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
741{
742 f->fmt.win = ((struct saa7146_fh *)fh)->ov.win;
743 return 0;
744}
745
746static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f)
747{
748 f->fmt.vbi = ((struct saa7146_fh *)fh)->vbi_fmt;
749 return 0;
750}
751
752static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
753{
754 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
755 struct saa7146_vv *vv = dev->vv_data;
756 struct saa7146_format *fmt;
757 enum v4l2_field field;
758 int maxw, maxh;
759 int calc_bpl;
760
761 DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
762
763 fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat);
764 if (NULL == fmt)
765 return -EINVAL;
766
767 field = f->fmt.pix.field;
768 maxw = vv->standard->h_max_out;
769 maxh = vv->standard->v_max_out;
770
771 if (V4L2_FIELD_ANY == field) {
772 field = (f->fmt.pix.height > maxh / 2)
773 ? V4L2_FIELD_INTERLACED
774 : V4L2_FIELD_BOTTOM;
775 }
776 switch (field) {
777 case V4L2_FIELD_ALTERNATE:
778 vv->last_field = V4L2_FIELD_TOP;
779 maxh = maxh / 2;
780 break;
781 case V4L2_FIELD_TOP:
782 case V4L2_FIELD_BOTTOM:
783 vv->last_field = V4L2_FIELD_INTERLACED;
784 maxh = maxh / 2;
785 break;
786 case V4L2_FIELD_INTERLACED:
787 vv->last_field = V4L2_FIELD_INTERLACED;
788 break;
789 default:
790 DEB_D(("no known field mode '%d'.\n", field));
791 return -EINVAL;
792 }
793
794 f->fmt.pix.field = field;
795 if (f->fmt.pix.width > maxw)
796 f->fmt.pix.width = maxw;
797 if (f->fmt.pix.height > maxh)
798 f->fmt.pix.height = maxh;
799
800 calc_bpl = (f->fmt.pix.width * fmt->depth) / 8;
801
802 if (f->fmt.pix.bytesperline < calc_bpl)
803 f->fmt.pix.bytesperline = calc_bpl;
804
805 if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */
806 f->fmt.pix.bytesperline = calc_bpl;
807
808 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
809 DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width,
810 f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage));
811
812 return 0;
813}
814
815
816static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
817{
818 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
819 struct saa7146_vv *vv = dev->vv_data;
820 struct v4l2_window *win = &f->fmt.win;
821 enum v4l2_field field;
822 int maxw, maxh;
823
824 DEB_EE(("dev:%p\n", dev));
825
826 if (NULL == vv->ov_fb.base) {
827 DEB_D(("no fb base set.\n"));
828 return -EINVAL;
829 }
830 if (NULL == vv->ov_fmt) {
831 DEB_D(("no fb fmt set.\n"));
832 return -EINVAL;
833 }
834 if (win->w.width < 48 || win->w.height < 32) {
835 DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height));
836 return -EINVAL;
837 }
838 if (win->clipcount > 16) {
839 DEB_D(("clipcount too big.\n"));
840 return -EINVAL;
841 }
842
843 field = win->field;
844 maxw = vv->standard->h_max_out;
845 maxh = vv->standard->v_max_out;
846
847 if (V4L2_FIELD_ANY == field) {
848 field = (win->w.height > maxh / 2)
849 ? V4L2_FIELD_INTERLACED
850 : V4L2_FIELD_TOP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300852 switch (field) {
853 case V4L2_FIELD_TOP:
854 case V4L2_FIELD_BOTTOM:
855 case V4L2_FIELD_ALTERNATE:
856 maxh = maxh / 2;
857 break;
858 case V4L2_FIELD_INTERLACED:
859 break;
860 default:
861 DEB_D(("no known field mode '%d'.\n", field));
862 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864
Hans Verkuilb9600742009-01-18 19:59:11 -0300865 win->field = field;
866 if (win->w.width > maxw)
867 win->w.width = maxw;
868 if (win->w.height > maxh)
869 win->w.height = maxh;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Hans Verkuilb9600742009-01-18 19:59:11 -0300871 return 0;
872}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873
Hans Verkuilb9600742009-01-18 19:59:11 -0300874static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f)
875{
876 struct saa7146_fh *fh = __fh;
877 struct saa7146_dev *dev = fh->dev;
878 struct saa7146_vv *vv = dev->vv_data;
879 int err;
880
881 DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh));
882 if (IS_CAPTURE_ACTIVE(fh) != 0) {
883 DEB_EE(("streaming capture is active\n"));
884 return -EBUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300886 err = vidioc_try_fmt_vid_cap(file, fh, f);
887 if (0 != err)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700888 return err;
Hans Verkuilb9600742009-01-18 19:59:11 -0300889 fh->video_fmt = f->fmt.pix;
890 DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat));
891 return 0;
892}
893
894static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f)
895{
896 struct saa7146_fh *fh = __fh;
897 struct saa7146_dev *dev = fh->dev;
898 struct saa7146_vv *vv = dev->vv_data;
899 int err;
900
901 DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh));
902 err = vidioc_try_fmt_vid_overlay(file, fh, f);
903 if (0 != err)
904 return err;
905 mutex_lock(&dev->lock);
906 fh->ov.win = f->fmt.win;
907 fh->ov.nclips = f->fmt.win.clipcount;
908 if (fh->ov.nclips > 16)
909 fh->ov.nclips = 16;
910 if (copy_from_user(fh->ov.clips, f->fmt.win.clips,
911 sizeof(struct v4l2_clip) * fh->ov.nclips)) {
912 mutex_unlock(&dev->lock);
913 return -EFAULT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300915
916 /* fh->ov.fh is used to indicate that we have valid overlay informations, too */
917 fh->ov.fh = fh;
918
919 mutex_unlock(&dev->lock);
920
921 /* check if our current overlay is active */
922 if (IS_OVERLAY_ACTIVE(fh) != 0) {
923 saa7146_stop_preview(fh);
924 saa7146_start_preview(fh);
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800925 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300926 return 0;
927}
928
929static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm)
930{
931 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
932 struct saa7146_vv *vv = dev->vv_data;
933
934 *norm = vv->standard->id;
935 return 0;
936}
937
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938 /* the saa7146 supfhrts (used in conjunction with the saa7111a for example)
939 PAL / NTSC / SECAM. if your hardware does not (or does more)
940 -- override this function in your extension */
Hans Verkuilb9600742009-01-18 19:59:11 -0300941/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942 case VIDIOC_ENUMSTD:
943 {
944 struct v4l2_standard *e = arg;
945 if (e->index < 0 )
946 return -EINVAL;
947 if( e->index < dev->ext_vv_data->num_stds ) {
948 DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index));
949 v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name);
950 return 0;
951 }
952 return -EINVAL;
953 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300954 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955
Hans Verkuilb9600742009-01-18 19:59:11 -0300956static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id)
957{
958 struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
959 struct saa7146_vv *vv = dev->vv_data;
960 int found = 0;
961 int err, i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Hans Verkuilb9600742009-01-18 19:59:11 -0300963 DEB_EE(("VIDIOC_S_STD\n"));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
Hans Verkuilb9600742009-01-18 19:59:11 -0300965 if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
966 DEB_D(("cannot change video standard while streaming capture is active\n"));
967 return -EBUSY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
Hans Verkuilb9600742009-01-18 19:59:11 -0300970 if ((vv->video_status & STATUS_OVERLAY) != 0) {
971 vv->ov_suspend = vv->video_fh;
972 err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973 if (0 != err) {
Hans Verkuilb9600742009-01-18 19:59:11 -0300974 DEB_D(("suspending video failed. aborting\n"));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 return err;
Hans Verkuilb9600742009-01-18 19:59:11 -0300976 }
977 }
Brandon Philips49ee7182007-10-05 16:26:27 -0300978
Hans Verkuilb9600742009-01-18 19:59:11 -0300979 mutex_lock(&dev->lock);
980
981 for (i = 0; i < dev->ext_vv_data->num_stds; i++)
982 if (*id & dev->ext_vv_data->stds[i].id)
983 break;
984 if (i != dev->ext_vv_data->num_stds) {
985 vv->standard = &dev->ext_vv_data->stds[i];
986 if (NULL != dev->ext_vv_data->std_callback)
987 dev->ext_vv_data->std_callback(dev, vv->standard);
988 found = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300990
991 mutex_unlock(&dev->lock);
992
993 if (vv->ov_suspend != NULL) {
994 saa7146_start_preview(vv->ov_suspend);
995 vv->ov_suspend = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 }
Hans Verkuilb9600742009-01-18 19:59:11 -0300997
998 if (!found) {
999 DEB_EE(("VIDIOC_S_STD: standard not found.\n"));
1000 return -EINVAL;
1001 }
1002
1003 DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004 return 0;
1005}
1006
Hans Verkuilb9600742009-01-18 19:59:11 -03001007static int vidioc_overlay(struct file *file, void *fh, unsigned int on)
1008{
1009 int err;
1010
1011 DEB_D(("VIDIOC_OVERLAY on:%d\n", on));
1012 if (on)
1013 err = saa7146_start_preview(fh);
1014 else
1015 err = saa7146_stop_preview(fh);
1016 return err;
1017}
1018
1019static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b)
1020{
1021 struct saa7146_fh *fh = __fh;
1022
1023 if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1024 return videobuf_reqbufs(&fh->video_q, b);
1025 if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1026 return videobuf_reqbufs(&fh->vbi_q, b);
1027 return -EINVAL;
1028}
1029
1030static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
1031{
1032 struct saa7146_fh *fh = __fh;
1033
1034 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1035 return videobuf_querybuf(&fh->video_q, buf);
1036 if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1037 return videobuf_querybuf(&fh->vbi_q, buf);
1038 return -EINVAL;
1039}
1040
1041static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
1042{
1043 struct saa7146_fh *fh = __fh;
1044
1045 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1046 return videobuf_qbuf(&fh->video_q, buf);
1047 if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1048 return videobuf_qbuf(&fh->vbi_q, buf);
1049 return -EINVAL;
1050}
1051
1052static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
1053{
1054 struct saa7146_fh *fh = __fh;
1055
1056 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1057 return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK);
1058 if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
1059 return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK);
1060 return -EINVAL;
1061}
1062
1063static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
1064{
1065 struct saa7146_fh *fh = __fh;
1066 int err;
1067
1068 DEB_D(("VIDIOC_STREAMON, type:%d\n", type));
1069
1070 err = video_begin(fh);
1071 if (err)
1072 return err;
1073 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1074 return videobuf_streamon(&fh->video_q);
1075 if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
1076 return videobuf_streamon(&fh->vbi_q);
1077 return -EINVAL;
1078}
1079
1080static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
1081{
1082 struct saa7146_fh *fh = __fh;
1083 struct saa7146_dev *dev = fh->dev;
1084 struct saa7146_vv *vv = dev->vv_data;
1085 int err;
1086
1087 DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type));
1088
1089 /* ugly: we need to copy some checks from video_end(),
1090 because videobuf_streamoff() relies on the capture running.
1091 check and fix this */
1092 if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
1093 DEB_S(("not capturing.\n"));
1094 return 0;
1095 }
1096
1097 if (vv->video_fh != fh) {
1098 DEB_S(("capturing, but in another open.\n"));
1099 return -EBUSY;
1100 }
1101
1102 err = -EINVAL;
1103 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
1104 err = videobuf_streamoff(&fh->video_q);
1105 else if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
1106 err = videobuf_streamoff(&fh->vbi_q);
1107 if (0 != err) {
1108 DEB_D(("warning: videobuf_streamoff() failed.\n"));
1109 video_end(fh, file);
1110 } else {
1111 err = video_end(fh, file);
1112 }
1113 return err;
1114}
1115
Hans Verkuil1b8dac12009-02-07 11:18:05 -03001116static int vidioc_g_chip_ident(struct file *file, void *__fh,
1117 struct v4l2_dbg_chip_ident *chip)
1118{
1119 struct saa7146_fh *fh = __fh;
1120 struct saa7146_dev *dev = fh->dev;
1121
1122 chip->ident = V4L2_IDENT_NONE;
1123 chip->revision = 0;
Hans Verkuileae4d692009-02-07 20:15:22 -03001124 if (chip->match.type == V4L2_CHIP_MATCH_HOST && !chip->match.addr) {
Hans Verkuil1b8dac12009-02-07 11:18:05 -03001125 chip->ident = V4L2_IDENT_SAA7146;
1126 return 0;
1127 }
1128 return v4l2_device_call_until_err(&dev->v4l2_dev, 0,
1129 core, g_chip_ident, chip);
1130}
1131
Hans Verkuilb9600742009-01-18 19:59:11 -03001132#ifdef CONFIG_VIDEO_V4L1_COMPAT
1133static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf)
1134{
1135 struct saa7146_fh *fh = __fh;
1136 struct videobuf_queue *q = &fh->video_q;
1137 int err, i;
1138
1139 /* fixme: number of capture buffers and sizes for v4l apps */
1140 int gbuffers = 2;
1141 int gbufsize = 768 * 576 * 4;
1142
1143 DEB_D(("VIDIOCGMBUF \n"));
1144
1145 q = &fh->video_q;
1146 err = videobuf_mmap_setup(q, gbuffers, gbufsize,
1147 V4L2_MEMORY_MMAP);
1148 if (err < 0)
1149 return err;
1150
1151 gbuffers = err;
1152 memset(mbuf, 0, sizeof(*mbuf));
1153 mbuf->frames = gbuffers;
1154 mbuf->size = gbuffers * gbufsize;
1155 for (i = 0; i < gbuffers; i++)
1156 mbuf->offsets[i] = i * gbufsize;
1157 return 0;
1158}
1159#endif
1160
1161const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
1162 .vidioc_querycap = vidioc_querycap,
1163 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
Trent Piepho717167e2009-03-04 01:21:03 -03001164 .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap,
Hans Verkuilb9600742009-01-18 19:59:11 -03001165 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1166 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1167 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1168 .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
1169 .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
1170 .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
1171 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
Hans Verkuil1b8dac12009-02-07 11:18:05 -03001172 .vidioc_g_chip_ident = vidioc_g_chip_ident,
Hans Verkuilb9600742009-01-18 19:59:11 -03001173
1174 .vidioc_overlay = vidioc_overlay,
1175 .vidioc_g_fbuf = vidioc_g_fbuf,
1176 .vidioc_s_fbuf = vidioc_s_fbuf,
1177 .vidioc_reqbufs = vidioc_reqbufs,
1178 .vidioc_querybuf = vidioc_querybuf,
1179 .vidioc_qbuf = vidioc_qbuf,
1180 .vidioc_dqbuf = vidioc_dqbuf,
1181 .vidioc_g_std = vidioc_g_std,
1182 .vidioc_s_std = vidioc_s_std,
1183 .vidioc_queryctrl = vidioc_queryctrl,
1184 .vidioc_g_ctrl = vidioc_g_ctrl,
1185 .vidioc_s_ctrl = vidioc_s_ctrl,
1186 .vidioc_streamon = vidioc_streamon,
1187 .vidioc_streamoff = vidioc_streamoff,
1188 .vidioc_g_parm = vidioc_g_parm,
1189#ifdef CONFIG_VIDEO_V4L1_COMPAT
1190 .vidiocgmbuf = vidiocgmbuf,
1191#endif
1192};
1193
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194/*********************************************************************************/
1195/* buffer handling functions */
1196
1197static int buffer_activate (struct saa7146_dev *dev,
1198 struct saa7146_buf *buf,
1199 struct saa7146_buf *next)
1200{
1201 struct saa7146_vv *vv = dev->vv_data;
1202
Brandon Philips0fc06862007-11-06 20:02:36 -03001203 buf->vb.state = VIDEOBUF_ACTIVE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204 saa7146_set_capture(dev,buf,next);
1205
1206 mod_timer(&vv->video_q.timeout, jiffies+BUFFER_TIMEOUT);
1207 return 0;
1208}
1209
Johann Friedrichs311c70e2009-10-07 04:41:37 -03001210static void release_all_pagetables(struct saa7146_dev *dev, struct saa7146_buf *buf)
1211{
1212 saa7146_pgtable_free(dev->pci, &buf->pt[0]);
1213 saa7146_pgtable_free(dev->pci, &buf->pt[1]);
1214 saa7146_pgtable_free(dev->pci, &buf->pt[2]);
1215}
1216
Linus Torvalds1da177e2005-04-16 15:20:36 -07001217static int buffer_prepare(struct videobuf_queue *q,
1218 struct videobuf_buffer *vb, enum v4l2_field field)
1219{
1220 struct file *file = q->priv_data;
1221 struct saa7146_fh *fh = file->private_data;
1222 struct saa7146_dev *dev = fh->dev;
1223 struct saa7146_vv *vv = dev->vv_data;
1224 struct saa7146_buf *buf = (struct saa7146_buf *)vb;
1225 int size,err = 0;
1226
1227 DEB_CAP(("vbuf:%p\n",vb));
1228
1229 /* sanity checks */
1230 if (fh->video_fmt.width < 48 ||
1231 fh->video_fmt.height < 32 ||
1232 fh->video_fmt.width > vv->standard->h_max_out ||
1233 fh->video_fmt.height > vv->standard->v_max_out) {
1234 DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height));
1235 return -EINVAL;
1236 }
1237
1238 size = fh->video_fmt.sizeimage;
1239 if (0 != buf->vb.baddr && buf->vb.bsize < size) {
1240 DEB_D(("size mismatch.\n"));
1241 return -EINVAL;
1242 }
1243
1244 DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n",
1245 fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field]));
1246 if (buf->vb.width != fh->video_fmt.width ||
1247 buf->vb.bytesperline != fh->video_fmt.bytesperline ||
1248 buf->vb.height != fh->video_fmt.height ||
1249 buf->vb.size != size ||
1250 buf->vb.field != field ||
1251 buf->vb.field != fh->video_fmt.field ||
1252 buf->fmt != &fh->video_fmt) {
Mauro Carvalho Chehabc7b0ac02006-03-10 12:29:15 -03001253 saa7146_dma_free(dev,q,buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254 }
1255
Brandon Philips0fc06862007-11-06 20:02:36 -03001256 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 struct saa7146_format *sfmt;
1258
1259 buf->vb.bytesperline = fh->video_fmt.bytesperline;
1260 buf->vb.width = fh->video_fmt.width;
1261 buf->vb.height = fh->video_fmt.height;
1262 buf->vb.size = size;
1263 buf->vb.field = field;
1264 buf->fmt = &fh->video_fmt;
1265 buf->vb.field = fh->video_fmt.field;
1266
1267 sfmt = format_by_fourcc(dev,buf->fmt->pixelformat);
1268
Johann Friedrichs311c70e2009-10-07 04:41:37 -03001269 release_all_pagetables(dev, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270 if( 0 != IS_PLANAR(sfmt->trans)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
1272 saa7146_pgtable_alloc(dev->pci, &buf->pt[1]);
1273 saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
1274 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275 saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
1276 }
1277
Mauro Carvalho Chehabc7b0ac02006-03-10 12:29:15 -03001278 err = videobuf_iolock(q,&buf->vb, &vv->ov_fb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 if (err)
1280 goto oops;
1281 err = saa7146_pgtable_build(dev,buf);
1282 if (err)
1283 goto oops;
1284 }
Brandon Philips0fc06862007-11-06 20:02:36 -03001285 buf->vb.state = VIDEOBUF_PREPARED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001286 buf->activate = buffer_activate;
1287
1288 return 0;
1289
1290 oops:
1291 DEB_D(("error out.\n"));
Mauro Carvalho Chehabc7b0ac02006-03-10 12:29:15 -03001292 saa7146_dma_free(dev,q,buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293
1294 return err;
1295}
1296
1297static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1298{
1299 struct file *file = q->priv_data;
1300 struct saa7146_fh *fh = file->private_data;
1301
1302 if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS)
1303 *count = MAX_SAA7146_CAPTURE_BUFFERS;
1304
1305 *size = fh->video_fmt.sizeimage;
1306
1307 /* check if we exceed the "max_memory" parameter */
1308 if( (*count * *size) > (max_memory*1048576) ) {
1309 *count = (max_memory*1048576) / *size;
1310 }
1311
1312 DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size));
1313
1314 return 0;
1315}
1316
1317static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1318{
1319 struct file *file = q->priv_data;
1320 struct saa7146_fh *fh = file->private_data;
1321 struct saa7146_dev *dev = fh->dev;
1322 struct saa7146_vv *vv = dev->vv_data;
1323 struct saa7146_buf *buf = (struct saa7146_buf *)vb;
1324
1325 DEB_CAP(("vbuf:%p\n",vb));
1326 saa7146_buffer_queue(fh->dev,&vv->video_q,buf);
1327}
1328
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1330{
1331 struct file *file = q->priv_data;
1332 struct saa7146_fh *fh = file->private_data;
1333 struct saa7146_dev *dev = fh->dev;
1334 struct saa7146_buf *buf = (struct saa7146_buf *)vb;
1335
1336 DEB_CAP(("vbuf:%p\n",vb));
Johann Friedrichs311c70e2009-10-07 04:41:37 -03001337
Mauro Carvalho Chehabc7b0ac02006-03-10 12:29:15 -03001338 saa7146_dma_free(dev,q,buf);
Mauro Carvalho Chehabba9e9f32010-02-01 21:23:46 -02001339
1340 release_all_pagetables(dev, buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341}
1342
1343static struct videobuf_queue_ops video_qops = {
1344 .buf_setup = buffer_setup,
1345 .buf_prepare = buffer_prepare,
1346 .buf_queue = buffer_queue,
1347 .buf_release = buffer_release,
1348};
1349
1350/********************************************************************************/
1351/* file operations */
1352
1353static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
1354{
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -08001355 INIT_LIST_HEAD(&vv->video_q.queue);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
1357 init_timer(&vv->video_q.timeout);
1358 vv->video_q.timeout.function = saa7146_buffer_timeout;
1359 vv->video_q.timeout.data = (unsigned long)(&vv->video_q);
1360 vv->video_q.dev = dev;
1361
1362 /* set some default values */
1363 vv->standard = &dev->ext_vv_data->stds[0];
1364
1365 /* FIXME: what's this? */
1366 vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A;
1367 vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A;
1368}
1369
1370
1371static int video_open(struct saa7146_dev *dev, struct file *file)
1372{
1373 struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data;
1374 struct saa7146_format *sfmt;
1375
1376 fh->video_fmt.width = 384;
1377 fh->video_fmt.height = 288;
1378 fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24;
1379 fh->video_fmt.bytesperline = 0;
1380 fh->video_fmt.field = V4L2_FIELD_ANY;
1381 sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat);
1382 fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8;
1383
Guennadi Liakhovetski07051352008-04-22 14:42:13 -03001384 videobuf_queue_sg_init(&fh->video_q, &video_qops,
1385 &dev->pci->dev, &dev->slock,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386 V4L2_BUF_TYPE_VIDEO_CAPTURE,
1387 V4L2_FIELD_INTERLACED,
1388 sizeof(struct saa7146_buf),
1389 file);
1390
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391 return 0;
1392}
1393
1394
1395static void video_close(struct saa7146_dev *dev, struct file *file)
1396{
1397 struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data;
1398 struct saa7146_vv *vv = dev->vv_data;
Hartmut Birr2970c492007-04-22 06:57:26 -03001399 struct videobuf_queue *q = &fh->video_q;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400 int err;
1401
1402 if (IS_CAPTURE_ACTIVE(fh) != 0) {
1403 err = video_end(fh, file);
1404 } else if (IS_OVERLAY_ACTIVE(fh) != 0) {
1405 err = saa7146_stop_preview(fh);
1406 }
1407
Brandon Philips19bc5132007-11-13 20:05:38 -03001408 videobuf_stop(q);
Hartmut Birr2970c492007-04-22 06:57:26 -03001409
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 /* hmm, why is this function declared void? */
1411 /* return err */
1412}
1413
1414
1415static void video_irq_done(struct saa7146_dev *dev, unsigned long st)
1416{
1417 struct saa7146_vv *vv = dev->vv_data;
1418 struct saa7146_dmaqueue *q = &vv->video_q;
1419
1420 spin_lock(&dev->slock);
1421 DEB_CAP(("called.\n"));
1422
1423 /* only finish the buffer if we have one... */
1424 if( NULL != q->curr ) {
Brandon Philips0fc06862007-11-06 20:02:36 -03001425 saa7146_buffer_finish(dev,q,VIDEOBUF_DONE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426 }
1427 saa7146_buffer_next(dev,q,0);
1428
1429 spin_unlock(&dev->slock);
1430}
1431
1432static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
1433{
1434 struct saa7146_fh *fh = file->private_data;
1435 struct saa7146_dev *dev = fh->dev;
1436 struct saa7146_vv *vv = dev->vv_data;
1437 ssize_t ret = 0;
1438
1439 DEB_EE(("called.\n"));
1440
1441 if ((vv->video_status & STATUS_CAPTURE) != 0) {
1442 /* fixme: should we allow read() captures while streaming capture? */
1443 if (vv->video_fh == fh) {
1444 DEB_S(("already capturing.\n"));
1445 return -EBUSY;
1446 }
1447 DEB_S(("already capturing in another open.\n"));
1448 return -EBUSY;
1449 }
1450
1451 ret = video_begin(fh);
1452 if( 0 != ret) {
1453 goto out;
1454 }
1455
1456 ret = videobuf_read_one(&fh->video_q , data, count, ppos,
1457 file->f_flags & O_NONBLOCK);
1458 if (ret != 0) {
1459 video_end(fh, file);
1460 } else {
1461 ret = video_end(fh, file);
1462 }
1463out:
1464 /* restart overlay if it was active before */
1465 if (vv->ov_suspend != NULL) {
1466 saa7146_start_preview(vv->ov_suspend);
1467 vv->ov_suspend = NULL;
1468 }
1469
1470 return ret;
1471}
1472
1473struct saa7146_use_ops saa7146_video_uops = {
1474 .init = video_init,
1475 .open = video_open,
1476 .release = video_close,
1477 .irq_done = video_irq_done,
1478 .read = video_read,
1479};