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1da177e4 | 1 | #include <media/saa7146_vv.h> |
1b8dac15 | 2 | #include <media/v4l2-chip-ident.h> |
1da177e4 LT |
3 | |
4 | static int max_memory = 32; | |
5 | ||
6 | module_param(max_memory, int, 0644); | |
7 | MODULE_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 */ | |
16 | static 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 | ||
85 | static int NUM_FORMATS = sizeof(formats)/sizeof(struct saa7146_format); | |
86 | ||
87 | struct 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 | ||
b960074f | 101 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f); |
1da177e4 LT |
102 | |
103 | int saa7146_start_preview(struct saa7146_fh *fh) | |
104 | { | |
105 | struct saa7146_dev *dev = fh->dev; | |
106 | struct saa7146_vv *vv = dev->vv_data; | |
b960074f | 107 | struct v4l2_format fmt; |
1da177e4 LT |
108 | 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 | ||
b960074f HV |
139 | fmt.fmt.win = fh->ov.win; |
140 | err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); | |
1da177e4 LT |
141 | if (0 != err) { |
142 | saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); | |
143 | return -EBUSY; | |
144 | } | |
b960074f | 145 | fh->ov.win = fmt.fmt.win; |
1da177e4 LT |
146 | 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 | } | |
5d7dc8c4 | 164 | EXPORT_SYMBOL_GPL(saa7146_start_preview); |
1da177e4 LT |
165 | |
166 | int 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 | } | |
5d7dc8c4 | 199 | EXPORT_SYMBOL_GPL(saa7146_stop_preview); |
1da177e4 | 200 | |
1da177e4 LT |
201 | /********************************************************************************/ |
202 | /* device controls */ | |
203 | ||
204 | static 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, | |
1b8dac15 | 213 | .flags = V4L2_CTRL_FLAG_SLIDER, |
1da177e4 LT |
214 | },{ |
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, | |
1b8dac15 | 222 | .flags = V4L2_CTRL_FLAG_SLIDER, |
1da177e4 LT |
223 | },{ |
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, | |
1b8dac15 | 231 | .flags = V4L2_CTRL_FLAG_SLIDER, |
1da177e4 LT |
232 | },{ |
233 | .id = V4L2_CID_VFLIP, | |
1b8dac15 | 234 | .name = "Vertical Flip", |
1da177e4 LT |
235 | .minimum = 0, |
236 | .maximum = 1, | |
237 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
238 | },{ | |
239 | .id = V4L2_CID_HFLIP, | |
1b8dac15 | 240 | .name = "Horizontal Flip", |
1da177e4 LT |
241 | .minimum = 0, |
242 | .maximum = 1, | |
243 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
244 | }, | |
245 | }; | |
246 | static int NUM_CONTROLS = sizeof(controls)/sizeof(struct v4l2_queryctrl); | |
247 | ||
248 | #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 0) | |
249 | ||
250 | static 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 | ||
1da177e4 LT |
260 | /********************************************************************************/ |
261 | /* common pagetable functions */ | |
262 | ||
263 | static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf) | |
264 | { | |
265 | struct pci_dev *pci = dev->pci; | |
c1accaa2 MCC |
266 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
267 | struct scatterlist *list = dma->sglist; | |
268 | int length = dma->sglen; | |
1da177e4 LT |
269 | 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]; | |
a36ef6b1 AV |
277 | __le32 *ptr1, *ptr2, *ptr3; |
278 | __le32 fill; | |
1da177e4 LT |
279 | |
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. */ | |
429e9089 | 328 | pt1->offset = dma->sglist->offset; |
1da177e4 LT |
329 | 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 | ||
382 | static 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 | ||
443 | static 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 | ||
b960074f HV |
500 | static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) |
501 | { | |
502 | 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 | } | |
1da177e4 | 516 | |
b960074f | 517 | static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) |
1da177e4 | 518 | { |
b960074f | 519 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
1da177e4 LT |
520 | struct saa7146_vv *vv = dev->vv_data; |
521 | ||
b960074f HV |
522 | *fb = vv->ov_fb; |
523 | fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; | |
524 | return 0; | |
525 | } | |
1da177e4 | 526 | |
b960074f HV |
527 | static 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; | |
1da177e4 | 532 | |
b960074f | 533 | DEB_EE(("VIDIOC_S_FBUF\n")); |
1da177e4 | 534 | |
b960074f HV |
535 | if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) |
536 | return -EPERM; | |
1da177e4 | 537 | |
b960074f HV |
538 | /* check args */ |
539 | fmt = format_by_fourcc(dev, fb->fmt.pixelformat); | |
540 | if (NULL == fmt) | |
541 | return -EINVAL; | |
1da177e4 | 542 | |
b960074f HV |
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; | |
553 | } | |
1da177e4 LT |
554 | } |
555 | ||
b960074f HV |
556 | mutex_lock(&dev->lock); |
557 | ||
558 | /* ok, accept it */ | |
559 | vv->ov_fb = *fb; | |
560 | vv->ov_fmt = fmt; | |
561 | if (0 == vv->ov_fb.fmt.bytesperline) | |
562 | vv->ov_fb.fmt.bytesperline = | |
563 | vv->ov_fb.fmt.width * fmt->depth / 8; | |
564 | ||
565 | mutex_unlock(&dev->lock); | |
566 | return 0; | |
567 | } | |
568 | ||
569 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) | |
570 | { | |
571 | if (f->index >= NUM_FORMATS) | |
572 | return -EINVAL; | |
573 | strlcpy((char *)f->description, formats[f->index].name, | |
574 | sizeof(f->description)); | |
575 | f->pixelformat = formats[f->index].pixelformat; | |
576 | return 0; | |
577 | } | |
578 | ||
b960074f HV |
579 | static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c) |
580 | { | |
581 | const struct v4l2_queryctrl *ctrl; | |
582 | ||
583 | if ((c->id < V4L2_CID_BASE || | |
584 | c->id >= V4L2_CID_LASTP1) && | |
585 | (c->id < V4L2_CID_PRIVATE_BASE || | |
586 | c->id >= V4L2_CID_PRIVATE_LASTP1)) | |
587 | return -EINVAL; | |
588 | ||
589 | ctrl = ctrl_by_id(c->id); | |
590 | if (ctrl == NULL) | |
591 | return -EINVAL; | |
592 | ||
593 | DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id)); | |
594 | *c = *ctrl; | |
595 | return 0; | |
596 | } | |
597 | ||
598 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) | |
599 | { | |
600 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
601 | struct saa7146_vv *vv = dev->vv_data; | |
602 | const struct v4l2_queryctrl *ctrl; | |
603 | u32 value = 0; | |
604 | ||
605 | ctrl = ctrl_by_id(c->id); | |
606 | if (NULL == ctrl) | |
607 | return -EINVAL; | |
608 | switch (c->id) { | |
609 | case V4L2_CID_BRIGHTNESS: | |
610 | value = saa7146_read(dev, BCS_CTRL); | |
611 | c->value = 0xff & (value >> 24); | |
612 | DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value)); | |
613 | break; | |
614 | case V4L2_CID_CONTRAST: | |
615 | value = saa7146_read(dev, BCS_CTRL); | |
616 | c->value = 0x7f & (value >> 16); | |
617 | DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value)); | |
618 | break; | |
619 | case V4L2_CID_SATURATION: | |
620 | value = saa7146_read(dev, BCS_CTRL); | |
621 | c->value = 0x7f & (value >> 0); | |
622 | DEB_D(("V4L2_CID_SATURATION: %d\n", c->value)); | |
623 | break; | |
624 | case V4L2_CID_VFLIP: | |
625 | c->value = vv->vflip; | |
626 | DEB_D(("V4L2_CID_VFLIP: %d\n", c->value)); | |
627 | break; | |
628 | case V4L2_CID_HFLIP: | |
629 | c->value = vv->hflip; | |
630 | DEB_D(("V4L2_CID_HFLIP: %d\n", c->value)); | |
631 | break; | |
632 | default: | |
633 | return -EINVAL; | |
1da177e4 | 634 | } |
b960074f HV |
635 | return 0; |
636 | } | |
1da177e4 | 637 | |
b960074f HV |
638 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
639 | { | |
640 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
641 | struct saa7146_vv *vv = dev->vv_data; | |
642 | const struct v4l2_queryctrl *ctrl; | |
1da177e4 | 643 | |
b960074f HV |
644 | ctrl = ctrl_by_id(c->id); |
645 | if (NULL == ctrl) { | |
646 | DEB_D(("unknown control %d\n", c->id)); | |
647 | return -EINVAL; | |
1da177e4 | 648 | } |
1da177e4 | 649 | |
b960074f | 650 | mutex_lock(&dev->lock); |
1da177e4 | 651 | |
b960074f HV |
652 | switch (ctrl->type) { |
653 | case V4L2_CTRL_TYPE_BOOLEAN: | |
654 | case V4L2_CTRL_TYPE_MENU: | |
655 | case V4L2_CTRL_TYPE_INTEGER: | |
656 | if (c->value < ctrl->minimum) | |
657 | c->value = ctrl->minimum; | |
658 | if (c->value > ctrl->maximum) | |
659 | c->value = ctrl->maximum; | |
660 | break; | |
661 | default: | |
662 | /* nothing */; | |
663 | } | |
1da177e4 | 664 | |
b960074f HV |
665 | switch (c->id) { |
666 | case V4L2_CID_BRIGHTNESS: { | |
667 | u32 value = saa7146_read(dev, BCS_CTRL); | |
668 | value &= 0x00ffffff; | |
669 | value |= (c->value << 24); | |
670 | saa7146_write(dev, BCS_CTRL, value); | |
671 | saa7146_write(dev, MC2, MASK_22 | MASK_06); | |
672 | break; | |
673 | } | |
674 | case V4L2_CID_CONTRAST: { | |
675 | u32 value = saa7146_read(dev, BCS_CTRL); | |
676 | value &= 0xff00ffff; | |
677 | value |= (c->value << 16); | |
678 | saa7146_write(dev, BCS_CTRL, value); | |
679 | saa7146_write(dev, MC2, MASK_22 | MASK_06); | |
680 | break; | |
681 | } | |
682 | case V4L2_CID_SATURATION: { | |
683 | u32 value = saa7146_read(dev, BCS_CTRL); | |
684 | value &= 0xffffff00; | |
685 | value |= (c->value << 0); | |
686 | saa7146_write(dev, BCS_CTRL, value); | |
687 | saa7146_write(dev, MC2, MASK_22 | MASK_06); | |
688 | break; | |
689 | } | |
690 | case V4L2_CID_HFLIP: | |
691 | /* fixme: we can support changing VFLIP and HFLIP here... */ | |
692 | if (IS_CAPTURE_ACTIVE(fh) != 0) { | |
693 | DEB_D(("V4L2_CID_HFLIP while active capture.\n")); | |
694 | mutex_unlock(&dev->lock); | |
5a5b9647 | 695 | return -EBUSY; |
1da177e4 | 696 | } |
b960074f HV |
697 | vv->hflip = c->value; |
698 | break; | |
699 | case V4L2_CID_VFLIP: | |
700 | if (IS_CAPTURE_ACTIVE(fh) != 0) { | |
701 | DEB_D(("V4L2_CID_VFLIP while active capture.\n")); | |
702 | mutex_unlock(&dev->lock); | |
5a5b9647 | 703 | return -EBUSY; |
1da177e4 | 704 | } |
b960074f HV |
705 | vv->vflip = c->value; |
706 | break; | |
707 | default: | |
708 | mutex_unlock(&dev->lock); | |
709 | return -EINVAL; | |
710 | } | |
711 | mutex_unlock(&dev->lock); | |
1da177e4 | 712 | |
b960074f HV |
713 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
714 | saa7146_stop_preview(fh); | |
715 | saa7146_start_preview(fh); | |
716 | } | |
717 | return 0; | |
718 | } | |
1da177e4 | 719 | |
b960074f HV |
720 | static int vidioc_g_parm(struct file *file, void *fh, |
721 | struct v4l2_streamparm *parm) | |
722 | { | |
717167e8 TP |
723 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
724 | struct saa7146_vv *vv = dev->vv_data; | |
725 | ||
b960074f | 726 | parm->parm.capture.readbuffers = 1; |
717167e8 TP |
727 | v4l2_video_std_frame_period(vv->standard->id, |
728 | &parm->parm.capture.timeperframe); | |
b960074f HV |
729 | return 0; |
730 | } | |
1da177e4 | 731 | |
b960074f HV |
732 | static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
733 | { | |
734 | f->fmt.pix = ((struct saa7146_fh *)fh)->video_fmt; | |
735 | return 0; | |
736 | } | |
1da177e4 | 737 | |
b960074f HV |
738 | static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) |
739 | { | |
740 | f->fmt.win = ((struct saa7146_fh *)fh)->ov.win; | |
741 | return 0; | |
742 | } | |
1da177e4 | 743 | |
b960074f HV |
744 | static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) |
745 | { | |
746 | f->fmt.vbi = ((struct saa7146_fh *)fh)->vbi_fmt; | |
747 | return 0; | |
748 | } | |
1da177e4 | 749 | |
b960074f HV |
750 | static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
751 | { | |
752 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
753 | struct saa7146_vv *vv = dev->vv_data; | |
754 | struct saa7146_format *fmt; | |
755 | enum v4l2_field field; | |
756 | int maxw, maxh; | |
757 | int calc_bpl; | |
758 | ||
759 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); | |
760 | ||
761 | fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat); | |
762 | if (NULL == fmt) | |
763 | return -EINVAL; | |
764 | ||
765 | field = f->fmt.pix.field; | |
766 | maxw = vv->standard->h_max_out; | |
767 | maxh = vv->standard->v_max_out; | |
768 | ||
769 | if (V4L2_FIELD_ANY == field) { | |
770 | field = (f->fmt.pix.height > maxh / 2) | |
771 | ? V4L2_FIELD_INTERLACED | |
772 | : V4L2_FIELD_BOTTOM; | |
773 | } | |
774 | switch (field) { | |
775 | case V4L2_FIELD_ALTERNATE: | |
776 | vv->last_field = V4L2_FIELD_TOP; | |
777 | maxh = maxh / 2; | |
778 | break; | |
779 | case V4L2_FIELD_TOP: | |
780 | case V4L2_FIELD_BOTTOM: | |
781 | vv->last_field = V4L2_FIELD_INTERLACED; | |
782 | maxh = maxh / 2; | |
783 | break; | |
784 | case V4L2_FIELD_INTERLACED: | |
785 | vv->last_field = V4L2_FIELD_INTERLACED; | |
786 | break; | |
787 | default: | |
788 | DEB_D(("no known field mode '%d'.\n", field)); | |
789 | return -EINVAL; | |
1da177e4 | 790 | } |
1da177e4 | 791 | |
b960074f HV |
792 | f->fmt.pix.field = field; |
793 | if (f->fmt.pix.width > maxw) | |
794 | f->fmt.pix.width = maxw; | |
795 | if (f->fmt.pix.height > maxh) | |
796 | f->fmt.pix.height = maxh; | |
1da177e4 | 797 | |
b960074f | 798 | calc_bpl = (f->fmt.pix.width * fmt->depth) / 8; |
1da177e4 | 799 | |
b960074f HV |
800 | if (f->fmt.pix.bytesperline < calc_bpl) |
801 | f->fmt.pix.bytesperline = calc_bpl; | |
802 | ||
803 | if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */ | |
804 | f->fmt.pix.bytesperline = calc_bpl; | |
805 | ||
806 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; | |
807 | DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width, | |
808 | f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage)); | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | ||
814 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) | |
815 | { | |
816 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
817 | struct saa7146_vv *vv = dev->vv_data; | |
818 | struct v4l2_window *win = &f->fmt.win; | |
819 | enum v4l2_field field; | |
820 | int maxw, maxh; | |
821 | ||
822 | DEB_EE(("dev:%p\n", dev)); | |
823 | ||
824 | if (NULL == vv->ov_fb.base) { | |
825 | DEB_D(("no fb base set.\n")); | |
826 | return -EINVAL; | |
1da177e4 | 827 | } |
b960074f HV |
828 | if (NULL == vv->ov_fmt) { |
829 | DEB_D(("no fb fmt set.\n")); | |
830 | return -EINVAL; | |
1da177e4 | 831 | } |
b960074f HV |
832 | if (win->w.width < 48 || win->w.height < 32) { |
833 | DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height)); | |
834 | return -EINVAL; | |
1da177e4 | 835 | } |
b960074f HV |
836 | if (win->clipcount > 16) { |
837 | DEB_D(("clipcount too big.\n")); | |
838 | return -EINVAL; | |
afd1a0c9 | 839 | } |
b960074f HV |
840 | |
841 | field = win->field; | |
842 | maxw = vv->standard->h_max_out; | |
843 | maxh = vv->standard->v_max_out; | |
844 | ||
845 | if (V4L2_FIELD_ANY == field) { | |
846 | field = (win->w.height > maxh / 2) | |
847 | ? V4L2_FIELD_INTERLACED | |
848 | : V4L2_FIELD_TOP; | |
849 | } | |
850 | switch (field) { | |
851 | case V4L2_FIELD_TOP: | |
852 | case V4L2_FIELD_BOTTOM: | |
853 | case V4L2_FIELD_ALTERNATE: | |
854 | maxh = maxh / 2; | |
855 | break; | |
856 | case V4L2_FIELD_INTERLACED: | |
857 | break; | |
858 | default: | |
859 | DEB_D(("no known field mode '%d'.\n", field)); | |
860 | return -EINVAL; | |
1da177e4 | 861 | } |
b960074f HV |
862 | |
863 | win->field = field; | |
864 | if (win->w.width > maxw) | |
865 | win->w.width = maxw; | |
866 | if (win->w.height > maxh) | |
867 | win->w.height = maxh; | |
868 | ||
869 | return 0; | |
870 | } | |
871 | ||
872 | static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) | |
873 | { | |
874 | struct saa7146_fh *fh = __fh; | |
875 | struct saa7146_dev *dev = fh->dev; | |
876 | struct saa7146_vv *vv = dev->vv_data; | |
877 | int err; | |
878 | ||
879 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); | |
880 | if (IS_CAPTURE_ACTIVE(fh) != 0) { | |
881 | DEB_EE(("streaming capture is active\n")); | |
882 | return -EBUSY; | |
1da177e4 | 883 | } |
b960074f HV |
884 | err = vidioc_try_fmt_vid_cap(file, fh, f); |
885 | if (0 != err) | |
886 | return err; | |
887 | fh->video_fmt = f->fmt.pix; | |
888 | DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat)); | |
889 | return 0; | |
890 | } | |
891 | ||
892 | static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) | |
893 | { | |
894 | struct saa7146_fh *fh = __fh; | |
895 | struct saa7146_dev *dev = fh->dev; | |
896 | struct saa7146_vv *vv = dev->vv_data; | |
897 | int err; | |
898 | ||
899 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh)); | |
900 | err = vidioc_try_fmt_vid_overlay(file, fh, f); | |
901 | if (0 != err) | |
902 | return err; | |
903 | mutex_lock(&dev->lock); | |
904 | fh->ov.win = f->fmt.win; | |
905 | fh->ov.nclips = f->fmt.win.clipcount; | |
906 | if (fh->ov.nclips > 16) | |
907 | fh->ov.nclips = 16; | |
908 | if (copy_from_user(fh->ov.clips, f->fmt.win.clips, | |
909 | sizeof(struct v4l2_clip) * fh->ov.nclips)) { | |
910 | mutex_unlock(&dev->lock); | |
911 | return -EFAULT; | |
1da177e4 | 912 | } |
b960074f HV |
913 | |
914 | /* fh->ov.fh is used to indicate that we have valid overlay informations, too */ | |
915 | fh->ov.fh = fh; | |
916 | ||
917 | mutex_unlock(&dev->lock); | |
918 | ||
919 | /* check if our current overlay is active */ | |
920 | if (IS_OVERLAY_ACTIVE(fh) != 0) { | |
921 | saa7146_stop_preview(fh); | |
922 | saa7146_start_preview(fh); | |
1da177e4 | 923 | } |
b960074f HV |
924 | return 0; |
925 | } | |
926 | ||
927 | static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) | |
928 | { | |
929 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
930 | struct saa7146_vv *vv = dev->vv_data; | |
931 | ||
932 | *norm = vv->standard->id; | |
933 | return 0; | |
934 | } | |
935 | ||
1da177e4 LT |
936 | /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) |
937 | PAL / NTSC / SECAM. if your hardware does not (or does more) | |
938 | -- override this function in your extension */ | |
b960074f | 939 | /* |
1da177e4 LT |
940 | case VIDIOC_ENUMSTD: |
941 | { | |
942 | struct v4l2_standard *e = arg; | |
943 | if (e->index < 0 ) | |
944 | return -EINVAL; | |
945 | if( e->index < dev->ext_vv_data->num_stds ) { | |
946 | DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index)); | |
947 | v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); | |
948 | return 0; | |
949 | } | |
950 | return -EINVAL; | |
951 | } | |
b960074f | 952 | */ |
1da177e4 | 953 | |
b960074f HV |
954 | static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id) |
955 | { | |
956 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; | |
957 | struct saa7146_vv *vv = dev->vv_data; | |
958 | int found = 0; | |
959 | int err, i; | |
1da177e4 | 960 | |
b960074f | 961 | DEB_EE(("VIDIOC_S_STD\n")); |
1da177e4 | 962 | |
b960074f HV |
963 | if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { |
964 | DEB_D(("cannot change video standard while streaming capture is active\n")); | |
965 | return -EBUSY; | |
966 | } | |
1da177e4 | 967 | |
b960074f HV |
968 | if ((vv->video_status & STATUS_OVERLAY) != 0) { |
969 | vv->ov_suspend = vv->video_fh; | |
970 | err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ | |
971 | if (0 != err) { | |
972 | DEB_D(("suspending video failed. aborting\n")); | |
973 | return err; | |
1da177e4 | 974 | } |
b960074f | 975 | } |
1da177e4 | 976 | |
b960074f | 977 | mutex_lock(&dev->lock); |
1da177e4 | 978 | |
b960074f HV |
979 | for (i = 0; i < dev->ext_vv_data->num_stds; i++) |
980 | if (*id & dev->ext_vv_data->stds[i].id) | |
981 | break; | |
982 | if (i != dev->ext_vv_data->num_stds) { | |
983 | vv->standard = &dev->ext_vv_data->stds[i]; | |
984 | if (NULL != dev->ext_vv_data->std_callback) | |
985 | dev->ext_vv_data->std_callback(dev, vv->standard); | |
986 | found = 1; | |
987 | } | |
1da177e4 | 988 | |
b960074f | 989 | mutex_unlock(&dev->lock); |
1da177e4 | 990 | |
b960074f HV |
991 | if (vv->ov_suspend != NULL) { |
992 | saa7146_start_preview(vv->ov_suspend); | |
993 | vv->ov_suspend = NULL; | |
1da177e4 | 994 | } |
1da177e4 | 995 | |
b960074f HV |
996 | if (!found) { |
997 | DEB_EE(("VIDIOC_S_STD: standard not found.\n")); | |
998 | return -EINVAL; | |
1da177e4 | 999 | } |
1da177e4 | 1000 | |
b960074f HV |
1001 | DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name)); |
1002 | return 0; | |
1003 | } | |
1da177e4 | 1004 | |
b960074f HV |
1005 | static int vidioc_overlay(struct file *file, void *fh, unsigned int on) |
1006 | { | |
1007 | int err; | |
1da177e4 | 1008 | |
b960074f HV |
1009 | DEB_D(("VIDIOC_OVERLAY on:%d\n", on)); |
1010 | if (on) | |
1011 | err = saa7146_start_preview(fh); | |
1012 | else | |
1013 | err = saa7146_stop_preview(fh); | |
1014 | return err; | |
1015 | } | |
1da177e4 | 1016 | |
b960074f HV |
1017 | static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) |
1018 | { | |
1019 | struct saa7146_fh *fh = __fh; | |
1da177e4 | 1020 | |
b960074f HV |
1021 | if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1022 | return videobuf_reqbufs(&fh->video_q, b); | |
1023 | if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1024 | return videobuf_reqbufs(&fh->vbi_q, b); | |
1025 | return -EINVAL; | |
1026 | } | |
1da177e4 | 1027 | |
b960074f HV |
1028 | static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
1029 | { | |
1030 | struct saa7146_fh *fh = __fh; | |
1da177e4 | 1031 | |
b960074f HV |
1032 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1033 | return videobuf_querybuf(&fh->video_q, buf); | |
1034 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1035 | return videobuf_querybuf(&fh->vbi_q, buf); | |
1036 | return -EINVAL; | |
1037 | } | |
1da177e4 | 1038 | |
b960074f HV |
1039 | static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
1040 | { | |
1041 | struct saa7146_fh *fh = __fh; | |
1042 | ||
1043 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1044 | return videobuf_qbuf(&fh->video_q, buf); | |
1045 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1046 | return videobuf_qbuf(&fh->vbi_q, buf); | |
1047 | return -EINVAL; | |
1048 | } | |
49ee718e | 1049 | |
b960074f HV |
1050 | static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
1051 | { | |
1052 | struct saa7146_fh *fh = __fh; | |
1053 | ||
1054 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1055 | return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK); | |
1056 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1057 | return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK); | |
1058 | return -EINVAL; | |
1059 | } | |
1060 | ||
1061 | static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) | |
1062 | { | |
1063 | struct saa7146_fh *fh = __fh; | |
1064 | int err; | |
1065 | ||
1066 | DEB_D(("VIDIOC_STREAMON, type:%d\n", type)); | |
1067 | ||
1068 | err = video_begin(fh); | |
1069 | if (err) | |
1070 | return err; | |
1071 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1072 | return videobuf_streamon(&fh->video_q); | |
1073 | if (type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1074 | return videobuf_streamon(&fh->vbi_q); | |
1075 | return -EINVAL; | |
1076 | } | |
1077 | ||
1078 | static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) | |
1079 | { | |
1080 | struct saa7146_fh *fh = __fh; | |
1081 | struct saa7146_dev *dev = fh->dev; | |
1082 | struct saa7146_vv *vv = dev->vv_data; | |
1083 | int err; | |
1084 | ||
1085 | DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type)); | |
1086 | ||
1087 | /* ugly: we need to copy some checks from video_end(), | |
1088 | because videobuf_streamoff() relies on the capture running. | |
1089 | check and fix this */ | |
1090 | if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { | |
1091 | DEB_S(("not capturing.\n")); | |
1da177e4 LT |
1092 | return 0; |
1093 | } | |
b960074f HV |
1094 | |
1095 | if (vv->video_fh != fh) { | |
1096 | DEB_S(("capturing, but in another open.\n")); | |
1097 | return -EBUSY; | |
1da177e4 | 1098 | } |
b960074f HV |
1099 | |
1100 | err = -EINVAL; | |
1101 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1102 | err = videobuf_streamoff(&fh->video_q); | |
1103 | else if (type == V4L2_BUF_TYPE_VBI_CAPTURE) | |
1104 | err = videobuf_streamoff(&fh->vbi_q); | |
1105 | if (0 != err) { | |
1106 | DEB_D(("warning: videobuf_streamoff() failed.\n")); | |
1107 | video_end(fh, file); | |
1108 | } else { | |
1109 | err = video_end(fh, file); | |
1110 | } | |
1111 | return err; | |
1112 | } | |
1113 | ||
1b8dac15 HV |
1114 | static int vidioc_g_chip_ident(struct file *file, void *__fh, |
1115 | struct v4l2_dbg_chip_ident *chip) | |
1116 | { | |
1117 | struct saa7146_fh *fh = __fh; | |
1118 | struct saa7146_dev *dev = fh->dev; | |
1119 | ||
1120 | chip->ident = V4L2_IDENT_NONE; | |
1121 | chip->revision = 0; | |
eae4d69b | 1122 | if (chip->match.type == V4L2_CHIP_MATCH_HOST && !chip->match.addr) { |
1b8dac15 HV |
1123 | chip->ident = V4L2_IDENT_SAA7146; |
1124 | return 0; | |
1125 | } | |
1126 | return v4l2_device_call_until_err(&dev->v4l2_dev, 0, | |
1127 | core, g_chip_ident, chip); | |
1128 | } | |
1129 | ||
b960074f HV |
1130 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
1131 | static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf) | |
1132 | { | |
1133 | struct saa7146_fh *fh = __fh; | |
1134 | struct videobuf_queue *q = &fh->video_q; | |
1135 | int err, i; | |
1136 | ||
1137 | /* fixme: number of capture buffers and sizes for v4l apps */ | |
1138 | int gbuffers = 2; | |
1139 | int gbufsize = 768 * 576 * 4; | |
1140 | ||
1141 | DEB_D(("VIDIOCGMBUF \n")); | |
1142 | ||
1143 | q = &fh->video_q; | |
1144 | err = videobuf_mmap_setup(q, gbuffers, gbufsize, | |
1145 | V4L2_MEMORY_MMAP); | |
1146 | if (err < 0) | |
1147 | return err; | |
1148 | ||
1149 | gbuffers = err; | |
1150 | memset(mbuf, 0, sizeof(*mbuf)); | |
1151 | mbuf->frames = gbuffers; | |
1152 | mbuf->size = gbuffers * gbufsize; | |
1153 | for (i = 0; i < gbuffers; i++) | |
1154 | mbuf->offsets[i] = i * gbufsize; | |
1da177e4 LT |
1155 | return 0; |
1156 | } | |
b960074f HV |
1157 | #endif |
1158 | ||
1159 | const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { | |
1160 | .vidioc_querycap = vidioc_querycap, | |
1161 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
717167e8 | 1162 | .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap, |
b960074f HV |
1163 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
1164 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1165 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
1166 | .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, | |
1167 | .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, | |
1168 | .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, | |
1169 | .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, | |
1b8dac15 | 1170 | .vidioc_g_chip_ident = vidioc_g_chip_ident, |
b960074f HV |
1171 | |
1172 | .vidioc_overlay = vidioc_overlay, | |
1173 | .vidioc_g_fbuf = vidioc_g_fbuf, | |
1174 | .vidioc_s_fbuf = vidioc_s_fbuf, | |
1175 | .vidioc_reqbufs = vidioc_reqbufs, | |
1176 | .vidioc_querybuf = vidioc_querybuf, | |
1177 | .vidioc_qbuf = vidioc_qbuf, | |
1178 | .vidioc_dqbuf = vidioc_dqbuf, | |
1179 | .vidioc_g_std = vidioc_g_std, | |
1180 | .vidioc_s_std = vidioc_s_std, | |
1181 | .vidioc_queryctrl = vidioc_queryctrl, | |
1182 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1183 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
1184 | .vidioc_streamon = vidioc_streamon, | |
1185 | .vidioc_streamoff = vidioc_streamoff, | |
1186 | .vidioc_g_parm = vidioc_g_parm, | |
1187 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
1188 | .vidiocgmbuf = vidiocgmbuf, | |
1189 | #endif | |
1190 | }; | |
1da177e4 LT |
1191 | |
1192 | /*********************************************************************************/ | |
1193 | /* buffer handling functions */ | |
1194 | ||
1195 | static int buffer_activate (struct saa7146_dev *dev, | |
1196 | struct saa7146_buf *buf, | |
1197 | struct saa7146_buf *next) | |
1198 | { | |
1199 | struct saa7146_vv *vv = dev->vv_data; | |
1200 | ||
0fc0686e | 1201 | buf->vb.state = VIDEOBUF_ACTIVE; |
1da177e4 LT |
1202 | saa7146_set_capture(dev,buf,next); |
1203 | ||
1204 | mod_timer(&vv->video_q.timeout, jiffies+BUFFER_TIMEOUT); | |
1205 | return 0; | |
1206 | } | |
1207 | ||
311c70e1 JF |
1208 | static void release_all_pagetables(struct saa7146_dev *dev, struct saa7146_buf *buf) |
1209 | { | |
1210 | saa7146_pgtable_free(dev->pci, &buf->pt[0]); | |
1211 | saa7146_pgtable_free(dev->pci, &buf->pt[1]); | |
1212 | saa7146_pgtable_free(dev->pci, &buf->pt[2]); | |
1213 | } | |
1214 | ||
1da177e4 LT |
1215 | static int buffer_prepare(struct videobuf_queue *q, |
1216 | struct videobuf_buffer *vb, enum v4l2_field field) | |
1217 | { | |
1218 | struct file *file = q->priv_data; | |
1219 | struct saa7146_fh *fh = file->private_data; | |
1220 | struct saa7146_dev *dev = fh->dev; | |
1221 | struct saa7146_vv *vv = dev->vv_data; | |
1222 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; | |
1223 | int size,err = 0; | |
1224 | ||
1225 | DEB_CAP(("vbuf:%p\n",vb)); | |
1226 | ||
1227 | /* sanity checks */ | |
1228 | if (fh->video_fmt.width < 48 || | |
1229 | fh->video_fmt.height < 32 || | |
1230 | fh->video_fmt.width > vv->standard->h_max_out || | |
1231 | fh->video_fmt.height > vv->standard->v_max_out) { | |
1232 | DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height)); | |
1233 | return -EINVAL; | |
1234 | } | |
1235 | ||
1236 | size = fh->video_fmt.sizeimage; | |
1237 | if (0 != buf->vb.baddr && buf->vb.bsize < size) { | |
1238 | DEB_D(("size mismatch.\n")); | |
1239 | return -EINVAL; | |
1240 | } | |
1241 | ||
1242 | DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", | |
1243 | fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field])); | |
1244 | if (buf->vb.width != fh->video_fmt.width || | |
1245 | buf->vb.bytesperline != fh->video_fmt.bytesperline || | |
1246 | buf->vb.height != fh->video_fmt.height || | |
1247 | buf->vb.size != size || | |
1248 | buf->vb.field != field || | |
1249 | buf->vb.field != fh->video_fmt.field || | |
1250 | buf->fmt != &fh->video_fmt) { | |
c7b0ac05 | 1251 | saa7146_dma_free(dev,q,buf); |
1da177e4 LT |
1252 | } |
1253 | ||
0fc0686e | 1254 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
1da177e4 LT |
1255 | struct saa7146_format *sfmt; |
1256 | ||
1257 | buf->vb.bytesperline = fh->video_fmt.bytesperline; | |
1258 | buf->vb.width = fh->video_fmt.width; | |
1259 | buf->vb.height = fh->video_fmt.height; | |
1260 | buf->vb.size = size; | |
1261 | buf->vb.field = field; | |
1262 | buf->fmt = &fh->video_fmt; | |
1263 | buf->vb.field = fh->video_fmt.field; | |
1264 | ||
1265 | sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); | |
1266 | ||
311c70e1 | 1267 | release_all_pagetables(dev, buf); |
1da177e4 | 1268 | if( 0 != IS_PLANAR(sfmt->trans)) { |
1da177e4 LT |
1269 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
1270 | saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); | |
1271 | saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); | |
1272 | } else { | |
1da177e4 LT |
1273 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
1274 | } | |
1275 | ||
c7b0ac05 | 1276 | err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); |
1da177e4 LT |
1277 | if (err) |
1278 | goto oops; | |
1279 | err = saa7146_pgtable_build(dev,buf); | |
1280 | if (err) | |
1281 | goto oops; | |
1282 | } | |
0fc0686e | 1283 | buf->vb.state = VIDEOBUF_PREPARED; |
1da177e4 LT |
1284 | buf->activate = buffer_activate; |
1285 | ||
1286 | return 0; | |
1287 | ||
1288 | oops: | |
1289 | DEB_D(("error out.\n")); | |
c7b0ac05 | 1290 | saa7146_dma_free(dev,q,buf); |
1da177e4 LT |
1291 | |
1292 | return err; | |
1293 | } | |
1294 | ||
1295 | static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) | |
1296 | { | |
1297 | struct file *file = q->priv_data; | |
1298 | struct saa7146_fh *fh = file->private_data; | |
1299 | ||
1300 | if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) | |
1301 | *count = MAX_SAA7146_CAPTURE_BUFFERS; | |
1302 | ||
1303 | *size = fh->video_fmt.sizeimage; | |
1304 | ||
1305 | /* check if we exceed the "max_memory" parameter */ | |
1306 | if( (*count * *size) > (max_memory*1048576) ) { | |
1307 | *count = (max_memory*1048576) / *size; | |
1308 | } | |
1309 | ||
1310 | DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size)); | |
1311 | ||
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) | |
1316 | { | |
1317 | struct file *file = q->priv_data; | |
1318 | struct saa7146_fh *fh = file->private_data; | |
1319 | struct saa7146_dev *dev = fh->dev; | |
1320 | struct saa7146_vv *vv = dev->vv_data; | |
1321 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; | |
1322 | ||
1323 | DEB_CAP(("vbuf:%p\n",vb)); | |
1324 | saa7146_buffer_queue(fh->dev,&vv->video_q,buf); | |
1325 | } | |
1326 | ||
1da177e4 LT |
1327 | static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) |
1328 | { | |
1329 | struct file *file = q->priv_data; | |
1330 | struct saa7146_fh *fh = file->private_data; | |
1331 | struct saa7146_dev *dev = fh->dev; | |
1332 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; | |
1333 | ||
1334 | DEB_CAP(("vbuf:%p\n",vb)); | |
311c70e1 | 1335 | |
c7b0ac05 | 1336 | saa7146_dma_free(dev,q,buf); |
ba9e9f3c MCC |
1337 | |
1338 | release_all_pagetables(dev, buf); | |
1da177e4 LT |
1339 | } |
1340 | ||
1341 | static struct videobuf_queue_ops video_qops = { | |
1342 | .buf_setup = buffer_setup, | |
1343 | .buf_prepare = buffer_prepare, | |
1344 | .buf_queue = buffer_queue, | |
1345 | .buf_release = buffer_release, | |
1346 | }; | |
1347 | ||
1348 | /********************************************************************************/ | |
1349 | /* file operations */ | |
1350 | ||
1351 | static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) | |
1352 | { | |
afd1a0c9 | 1353 | INIT_LIST_HEAD(&vv->video_q.queue); |
1da177e4 LT |
1354 | |
1355 | init_timer(&vv->video_q.timeout); | |
1356 | vv->video_q.timeout.function = saa7146_buffer_timeout; | |
1357 | vv->video_q.timeout.data = (unsigned long)(&vv->video_q); | |
1358 | vv->video_q.dev = dev; | |
1359 | ||
1360 | /* set some default values */ | |
1361 | vv->standard = &dev->ext_vv_data->stds[0]; | |
1362 | ||
1363 | /* FIXME: what's this? */ | |
1364 | vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A; | |
1365 | vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; | |
1366 | } | |
1367 | ||
1368 | ||
1369 | static int video_open(struct saa7146_dev *dev, struct file *file) | |
1370 | { | |
1371 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; | |
1372 | struct saa7146_format *sfmt; | |
1373 | ||
1374 | fh->video_fmt.width = 384; | |
1375 | fh->video_fmt.height = 288; | |
1376 | fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24; | |
1377 | fh->video_fmt.bytesperline = 0; | |
1378 | fh->video_fmt.field = V4L2_FIELD_ANY; | |
1379 | sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); | |
1380 | fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8; | |
1381 | ||
0705135e GL |
1382 | videobuf_queue_sg_init(&fh->video_q, &video_qops, |
1383 | &dev->pci->dev, &dev->slock, | |
1da177e4 LT |
1384 | V4L2_BUF_TYPE_VIDEO_CAPTURE, |
1385 | V4L2_FIELD_INTERLACED, | |
1386 | sizeof(struct saa7146_buf), | |
1387 | file); | |
1388 | ||
1da177e4 LT |
1389 | return 0; |
1390 | } | |
1391 | ||
1392 | ||
1393 | static void video_close(struct saa7146_dev *dev, struct file *file) | |
1394 | { | |
1395 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; | |
1396 | struct saa7146_vv *vv = dev->vv_data; | |
2970c492 | 1397 | struct videobuf_queue *q = &fh->video_q; |
1da177e4 LT |
1398 | int err; |
1399 | ||
1400 | if (IS_CAPTURE_ACTIVE(fh) != 0) { | |
1401 | err = video_end(fh, file); | |
1402 | } else if (IS_OVERLAY_ACTIVE(fh) != 0) { | |
1403 | err = saa7146_stop_preview(fh); | |
1404 | } | |
1405 | ||
19bc5133 | 1406 | videobuf_stop(q); |
2970c492 | 1407 | |
1da177e4 LT |
1408 | /* hmm, why is this function declared void? */ |
1409 | /* return err */ | |
1410 | } | |
1411 | ||
1412 | ||
1413 | static void video_irq_done(struct saa7146_dev *dev, unsigned long st) | |
1414 | { | |
1415 | struct saa7146_vv *vv = dev->vv_data; | |
1416 | struct saa7146_dmaqueue *q = &vv->video_q; | |
1417 | ||
1418 | spin_lock(&dev->slock); | |
1419 | DEB_CAP(("called.\n")); | |
1420 | ||
1421 | /* only finish the buffer if we have one... */ | |
1422 | if( NULL != q->curr ) { | |
0fc0686e | 1423 | saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); |
1da177e4 LT |
1424 | } |
1425 | saa7146_buffer_next(dev,q,0); | |
1426 | ||
1427 | spin_unlock(&dev->slock); | |
1428 | } | |
1429 | ||
1430 | static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) | |
1431 | { | |
1432 | struct saa7146_fh *fh = file->private_data; | |
1433 | struct saa7146_dev *dev = fh->dev; | |
1434 | struct saa7146_vv *vv = dev->vv_data; | |
1435 | ssize_t ret = 0; | |
1436 | ||
1437 | DEB_EE(("called.\n")); | |
1438 | ||
1439 | if ((vv->video_status & STATUS_CAPTURE) != 0) { | |
1440 | /* fixme: should we allow read() captures while streaming capture? */ | |
1441 | if (vv->video_fh == fh) { | |
1442 | DEB_S(("already capturing.\n")); | |
1443 | return -EBUSY; | |
1444 | } | |
1445 | DEB_S(("already capturing in another open.\n")); | |
1446 | return -EBUSY; | |
1447 | } | |
1448 | ||
1449 | ret = video_begin(fh); | |
1450 | if( 0 != ret) { | |
1451 | goto out; | |
1452 | } | |
1453 | ||
1454 | ret = videobuf_read_one(&fh->video_q , data, count, ppos, | |
1455 | file->f_flags & O_NONBLOCK); | |
1456 | if (ret != 0) { | |
1457 | video_end(fh, file); | |
1458 | } else { | |
1459 | ret = video_end(fh, file); | |
1460 | } | |
1461 | out: | |
1462 | /* restart overlay if it was active before */ | |
1463 | if (vv->ov_suspend != NULL) { | |
1464 | saa7146_start_preview(vv->ov_suspend); | |
1465 | vv->ov_suspend = NULL; | |
1466 | } | |
1467 | ||
1468 | return ret; | |
1469 | } | |
1470 | ||
1471 | struct saa7146_use_ops saa7146_video_uops = { | |
1472 | .init = video_init, | |
1473 | .open = video_open, | |
1474 | .release = video_close, | |
1475 | .irq_done = video_irq_done, | |
1476 | .read = video_read, | |
1477 | }; |