Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <media/saa7146_vv.h> |
| 2 | |
| 3 | static int max_memory = 32; |
| 4 | |
| 5 | module_param(max_memory, int, 0644); |
| 6 | MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)"); |
| 7 | |
| 8 | #define IS_CAPTURE_ACTIVE(fh) \ |
| 9 | (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh)) |
| 10 | |
| 11 | #define IS_OVERLAY_ACTIVE(fh) \ |
| 12 | (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh)) |
| 13 | |
| 14 | /* format descriptions for capture and preview */ |
| 15 | static struct saa7146_format formats[] = { |
| 16 | { |
| 17 | .name = "RGB-8 (3-3-2)", |
| 18 | .pixelformat = V4L2_PIX_FMT_RGB332, |
| 19 | .trans = RGB08_COMPOSED, |
| 20 | .depth = 8, |
| 21 | .flags = 0, |
| 22 | }, { |
| 23 | .name = "RGB-16 (5/B-6/G-5/R)", |
| 24 | .pixelformat = V4L2_PIX_FMT_RGB565, |
| 25 | .trans = RGB16_COMPOSED, |
| 26 | .depth = 16, |
| 27 | .flags = 0, |
| 28 | }, { |
| 29 | .name = "RGB-24 (B-G-R)", |
| 30 | .pixelformat = V4L2_PIX_FMT_BGR24, |
| 31 | .trans = RGB24_COMPOSED, |
| 32 | .depth = 24, |
| 33 | .flags = 0, |
| 34 | }, { |
| 35 | .name = "RGB-32 (B-G-R)", |
| 36 | .pixelformat = V4L2_PIX_FMT_BGR32, |
| 37 | .trans = RGB32_COMPOSED, |
| 38 | .depth = 32, |
| 39 | .flags = 0, |
| 40 | }, { |
| 41 | .name = "RGB-32 (R-G-B)", |
| 42 | .pixelformat = V4L2_PIX_FMT_RGB32, |
| 43 | .trans = RGB32_COMPOSED, |
| 44 | .depth = 32, |
| 45 | .flags = 0, |
| 46 | .swap = 0x2, |
| 47 | }, { |
| 48 | .name = "Greyscale-8", |
| 49 | .pixelformat = V4L2_PIX_FMT_GREY, |
| 50 | .trans = Y8, |
| 51 | .depth = 8, |
| 52 | .flags = 0, |
| 53 | }, { |
| 54 | .name = "YUV 4:2:2 planar (Y-Cb-Cr)", |
| 55 | .pixelformat = V4L2_PIX_FMT_YUV422P, |
| 56 | .trans = YUV422_DECOMPOSED, |
| 57 | .depth = 16, |
| 58 | .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, |
| 59 | }, { |
| 60 | .name = "YVU 4:2:0 planar (Y-Cb-Cr)", |
| 61 | .pixelformat = V4L2_PIX_FMT_YVU420, |
| 62 | .trans = YUV420_DECOMPOSED, |
| 63 | .depth = 12, |
| 64 | .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR, |
| 65 | }, { |
| 66 | .name = "YUV 4:2:0 planar (Y-Cb-Cr)", |
| 67 | .pixelformat = V4L2_PIX_FMT_YUV420, |
| 68 | .trans = YUV420_DECOMPOSED, |
| 69 | .depth = 12, |
| 70 | .flags = FORMAT_IS_PLANAR, |
| 71 | }, { |
| 72 | .name = "YUV 4:2:2 (U-Y-V-Y)", |
| 73 | .pixelformat = V4L2_PIX_FMT_UYVY, |
| 74 | .trans = YUV422_COMPOSED, |
| 75 | .depth = 16, |
| 76 | .flags = 0, |
| 77 | } |
| 78 | }; |
| 79 | |
| 80 | /* unfortunately, the saa7146 contains a bug which prevents it from doing on-the-fly byte swaps. |
| 81 | due to this, it's impossible to provide additional *packed* formats, which are simply byte swapped |
| 82 | (like V4L2_PIX_FMT_YUYV) ... 8-( */ |
| 83 | |
| 84 | static int NUM_FORMATS = sizeof(formats)/sizeof(struct saa7146_format); |
| 85 | |
| 86 | struct saa7146_format* format_by_fourcc(struct saa7146_dev *dev, int fourcc) |
| 87 | { |
| 88 | int i, j = NUM_FORMATS; |
| 89 | |
| 90 | for (i = 0; i < j; i++) { |
| 91 | if (formats[i].pixelformat == fourcc) { |
| 92 | return formats+i; |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | DEB_D(("unknown pixelformat:'%4.4s'\n",(char *)&fourcc)); |
| 97 | return NULL; |
| 98 | } |
| 99 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 100 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
| 102 | int saa7146_start_preview(struct saa7146_fh *fh) |
| 103 | { |
| 104 | struct saa7146_dev *dev = fh->dev; |
| 105 | struct saa7146_vv *vv = dev->vv_data; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 106 | struct v4l2_format fmt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | int ret = 0, err = 0; |
| 108 | |
| 109 | DEB_EE(("dev:%p, fh:%p\n",dev,fh)); |
| 110 | |
| 111 | /* check if we have overlay informations */ |
| 112 | if( NULL == fh->ov.fh ) { |
| 113 | DEB_D(("no overlay data available. try S_FMT first.\n")); |
| 114 | return -EAGAIN; |
| 115 | } |
| 116 | |
| 117 | /* check if streaming capture is running */ |
| 118 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 119 | DEB_D(("streaming capture is active.\n")); |
| 120 | return -EBUSY; |
| 121 | } |
| 122 | |
| 123 | /* check if overlay is running */ |
| 124 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 125 | if (vv->video_fh == fh) { |
| 126 | DEB_D(("overlay is already active.\n")); |
| 127 | return 0; |
| 128 | } |
| 129 | DEB_D(("overlay is already active in another open.\n")); |
| 130 | return -EBUSY; |
| 131 | } |
| 132 | |
| 133 | if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) { |
| 134 | DEB_D(("cannot get necessary overlay resources\n")); |
| 135 | return -EBUSY; |
| 136 | } |
| 137 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 138 | fmt.fmt.win = fh->ov.win; |
| 139 | err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | if (0 != err) { |
| 141 | saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); |
| 142 | return -EBUSY; |
| 143 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 144 | fh->ov.win = fmt.fmt.win; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | vv->ov_data = &fh->ov; |
| 146 | |
| 147 | DEB_D(("%dx%d+%d+%d %s field=%s\n", |
| 148 | fh->ov.win.w.width,fh->ov.win.w.height, |
| 149 | fh->ov.win.w.left,fh->ov.win.w.top, |
| 150 | vv->ov_fmt->name,v4l2_field_names[fh->ov.win.field])); |
| 151 | |
| 152 | if (0 != (ret = saa7146_enable_overlay(fh))) { |
| 153 | DEB_D(("enabling overlay failed: %d\n",ret)); |
| 154 | saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); |
| 155 | return ret; |
| 156 | } |
| 157 | |
| 158 | vv->video_status = STATUS_OVERLAY; |
| 159 | vv->video_fh = fh; |
| 160 | |
| 161 | return 0; |
| 162 | } |
Adrian Bunk | 5d7dc8c | 2006-04-11 10:26:57 -0300 | [diff] [blame] | 163 | EXPORT_SYMBOL_GPL(saa7146_start_preview); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | int saa7146_stop_preview(struct saa7146_fh *fh) |
| 166 | { |
| 167 | struct saa7146_dev *dev = fh->dev; |
| 168 | struct saa7146_vv *vv = dev->vv_data; |
| 169 | |
| 170 | DEB_EE(("dev:%p, fh:%p\n",dev,fh)); |
| 171 | |
| 172 | /* check if streaming capture is running */ |
| 173 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 174 | DEB_D(("streaming capture is active.\n")); |
| 175 | return -EBUSY; |
| 176 | } |
| 177 | |
| 178 | /* check if overlay is running at all */ |
| 179 | if ((vv->video_status & STATUS_OVERLAY) == 0) { |
| 180 | DEB_D(("no active overlay.\n")); |
| 181 | return 0; |
| 182 | } |
| 183 | |
| 184 | if (vv->video_fh != fh) { |
| 185 | DEB_D(("overlay is active, but in another open.\n")); |
| 186 | return -EBUSY; |
| 187 | } |
| 188 | |
| 189 | vv->video_status = 0; |
| 190 | vv->video_fh = NULL; |
| 191 | |
| 192 | saa7146_disable_overlay(fh); |
| 193 | |
| 194 | saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); |
| 195 | |
| 196 | return 0; |
| 197 | } |
Adrian Bunk | 5d7dc8c | 2006-04-11 10:26:57 -0300 | [diff] [blame] | 198 | EXPORT_SYMBOL_GPL(saa7146_stop_preview); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | /********************************************************************************/ |
| 201 | /* device controls */ |
| 202 | |
| 203 | static struct v4l2_queryctrl controls[] = { |
| 204 | { |
| 205 | .id = V4L2_CID_BRIGHTNESS, |
| 206 | .name = "Brightness", |
| 207 | .minimum = 0, |
| 208 | .maximum = 255, |
| 209 | .step = 1, |
| 210 | .default_value = 128, |
| 211 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 212 | },{ |
| 213 | .id = V4L2_CID_CONTRAST, |
| 214 | .name = "Contrast", |
| 215 | .minimum = 0, |
| 216 | .maximum = 127, |
| 217 | .step = 1, |
| 218 | .default_value = 64, |
| 219 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 220 | },{ |
| 221 | .id = V4L2_CID_SATURATION, |
| 222 | .name = "Saturation", |
| 223 | .minimum = 0, |
| 224 | .maximum = 127, |
| 225 | .step = 1, |
| 226 | .default_value = 64, |
| 227 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 228 | },{ |
| 229 | .id = V4L2_CID_VFLIP, |
| 230 | .name = "Vertical flip", |
| 231 | .minimum = 0, |
| 232 | .maximum = 1, |
| 233 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 234 | },{ |
| 235 | .id = V4L2_CID_HFLIP, |
| 236 | .name = "Horizontal flip", |
| 237 | .minimum = 0, |
| 238 | .maximum = 1, |
| 239 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 240 | }, |
| 241 | }; |
| 242 | static int NUM_CONTROLS = sizeof(controls)/sizeof(struct v4l2_queryctrl); |
| 243 | |
| 244 | #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 0) |
| 245 | |
| 246 | static struct v4l2_queryctrl* ctrl_by_id(int id) |
| 247 | { |
| 248 | int i; |
| 249 | |
| 250 | for (i = 0; i < NUM_CONTROLS; i++) |
| 251 | if (controls[i].id == id) |
| 252 | return controls+i; |
| 253 | return NULL; |
| 254 | } |
| 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /********************************************************************************/ |
| 257 | /* common pagetable functions */ |
| 258 | |
| 259 | static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf) |
| 260 | { |
| 261 | struct pci_dev *pci = dev->pci; |
Mauro Carvalho Chehab | c1accaa | 2007-08-23 16:37:49 -0300 | [diff] [blame] | 262 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
| 263 | struct scatterlist *list = dma->sglist; |
| 264 | int length = dma->sglen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | struct saa7146_format *sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); |
| 266 | |
| 267 | DEB_EE(("dev:%p, buf:%p, sg_len:%d\n",dev,buf,length)); |
| 268 | |
| 269 | if( 0 != IS_PLANAR(sfmt->trans)) { |
| 270 | struct saa7146_pgtable *pt1 = &buf->pt[0]; |
| 271 | struct saa7146_pgtable *pt2 = &buf->pt[1]; |
| 272 | struct saa7146_pgtable *pt3 = &buf->pt[2]; |
Al Viro | a36ef6b | 2008-06-22 14:19:19 -0300 | [diff] [blame] | 273 | __le32 *ptr1, *ptr2, *ptr3; |
| 274 | __le32 fill; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | int size = buf->fmt->width*buf->fmt->height; |
| 277 | int i,p,m1,m2,m3,o1,o2; |
| 278 | |
| 279 | switch( sfmt->depth ) { |
| 280 | case 12: { |
| 281 | /* create some offsets inside the page table */ |
| 282 | m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; |
| 283 | m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1; |
| 284 | m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; |
| 285 | o1 = size%PAGE_SIZE; |
| 286 | o2 = (size+(size/4))%PAGE_SIZE; |
| 287 | DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2)); |
| 288 | break; |
| 289 | } |
| 290 | case 16: { |
| 291 | /* create some offsets inside the page table */ |
| 292 | m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1; |
| 293 | m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1; |
| 294 | m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1; |
| 295 | o1 = size%PAGE_SIZE; |
| 296 | o2 = (size+(size/2))%PAGE_SIZE; |
| 297 | DEB_CAP(("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",size,m1,m2,m3,o1,o2)); |
| 298 | break; |
| 299 | } |
| 300 | default: { |
| 301 | return -1; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | ptr1 = pt1->cpu; |
| 306 | ptr2 = pt2->cpu; |
| 307 | ptr3 = pt3->cpu; |
| 308 | |
| 309 | /* walk all pages, copy all page addresses to ptr1 */ |
| 310 | for (i = 0; i < length; i++, list++) { |
| 311 | for (p = 0; p * 4096 < list->length; p++, ptr1++) { |
| 312 | *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset); |
| 313 | } |
| 314 | } |
| 315 | /* |
| 316 | ptr1 = pt1->cpu; |
| 317 | for(j=0;j<40;j++) { |
| 318 | printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); |
| 319 | } |
| 320 | */ |
| 321 | |
| 322 | /* if we have a user buffer, the first page may not be |
| 323 | aligned to a page boundary. */ |
Hans Verkuil | 429e908 | 2008-07-27 14:08:54 -0300 | [diff] [blame] | 324 | pt1->offset = dma->sglist->offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | pt2->offset = pt1->offset+o1; |
| 326 | pt3->offset = pt1->offset+o2; |
| 327 | |
| 328 | /* create video-dma2 page table */ |
| 329 | ptr1 = pt1->cpu; |
| 330 | for(i = m1; i <= m2 ; i++, ptr2++) { |
| 331 | *ptr2 = ptr1[i]; |
| 332 | } |
| 333 | fill = *(ptr2-1); |
| 334 | for(;i<1024;i++,ptr2++) { |
| 335 | *ptr2 = fill; |
| 336 | } |
| 337 | /* create video-dma3 page table */ |
| 338 | ptr1 = pt1->cpu; |
| 339 | for(i = m2; i <= m3; i++,ptr3++) { |
| 340 | *ptr3 = ptr1[i]; |
| 341 | } |
| 342 | fill = *(ptr3-1); |
| 343 | for(;i<1024;i++,ptr3++) { |
| 344 | *ptr3 = fill; |
| 345 | } |
| 346 | /* finally: finish up video-dma1 page table */ |
| 347 | ptr1 = pt1->cpu+m1; |
| 348 | fill = pt1->cpu[m1]; |
| 349 | for(i=m1;i<1024;i++,ptr1++) { |
| 350 | *ptr1 = fill; |
| 351 | } |
| 352 | /* |
| 353 | ptr1 = pt1->cpu; |
| 354 | ptr2 = pt2->cpu; |
| 355 | ptr3 = pt3->cpu; |
| 356 | for(j=0;j<40;j++) { |
| 357 | printk("ptr1 %d: 0x%08x\n",j,ptr1[j]); |
| 358 | } |
| 359 | for(j=0;j<40;j++) { |
| 360 | printk("ptr2 %d: 0x%08x\n",j,ptr2[j]); |
| 361 | } |
| 362 | for(j=0;j<40;j++) { |
| 363 | printk("ptr3 %d: 0x%08x\n",j,ptr3[j]); |
| 364 | } |
| 365 | */ |
| 366 | } else { |
| 367 | struct saa7146_pgtable *pt = &buf->pt[0]; |
| 368 | return saa7146_pgtable_build_single(pci, pt, list, length); |
| 369 | } |
| 370 | |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | |
| 375 | /********************************************************************************/ |
| 376 | /* file operations */ |
| 377 | |
| 378 | static int video_begin(struct saa7146_fh *fh) |
| 379 | { |
| 380 | struct saa7146_dev *dev = fh->dev; |
| 381 | struct saa7146_vv *vv = dev->vv_data; |
| 382 | struct saa7146_format *fmt = NULL; |
| 383 | unsigned int resource; |
| 384 | int ret = 0, err = 0; |
| 385 | |
| 386 | DEB_EE(("dev:%p, fh:%p\n",dev,fh)); |
| 387 | |
| 388 | if ((vv->video_status & STATUS_CAPTURE) != 0) { |
| 389 | if (vv->video_fh == fh) { |
| 390 | DEB_S(("already capturing.\n")); |
| 391 | return 0; |
| 392 | } |
| 393 | DEB_S(("already capturing in another open.\n")); |
| 394 | return -EBUSY; |
| 395 | } |
| 396 | |
| 397 | if ((vv->video_status & STATUS_OVERLAY) != 0) { |
| 398 | DEB_S(("warning: suspending overlay video for streaming capture.\n")); |
| 399 | vv->ov_suspend = vv->video_fh; |
| 400 | err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ |
| 401 | if (0 != err) { |
| 402 | DEB_D(("suspending video failed. aborting\n")); |
| 403 | return err; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); |
| 408 | /* we need to have a valid format set here */ |
| 409 | BUG_ON(NULL == fmt); |
| 410 | |
| 411 | if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { |
| 412 | resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; |
| 413 | } else { |
| 414 | resource = RESOURCE_DMA1_HPS; |
| 415 | } |
| 416 | |
| 417 | ret = saa7146_res_get(fh, resource); |
| 418 | if (0 == ret) { |
| 419 | DEB_S(("cannot get capture resource %d\n",resource)); |
| 420 | if (vv->ov_suspend != NULL) { |
| 421 | saa7146_start_preview(vv->ov_suspend); |
| 422 | vv->ov_suspend = NULL; |
| 423 | } |
| 424 | return -EBUSY; |
| 425 | } |
| 426 | |
| 427 | /* clear out beginning of streaming bit (rps register 0)*/ |
| 428 | saa7146_write(dev, MC2, MASK_27 ); |
| 429 | |
| 430 | /* enable rps0 irqs */ |
| 431 | SAA7146_IER_ENABLE(dev, MASK_27); |
| 432 | |
| 433 | vv->video_fh = fh; |
| 434 | vv->video_status = STATUS_CAPTURE; |
| 435 | |
| 436 | return 0; |
| 437 | } |
| 438 | |
| 439 | static int video_end(struct saa7146_fh *fh, struct file *file) |
| 440 | { |
| 441 | struct saa7146_dev *dev = fh->dev; |
| 442 | struct saa7146_vv *vv = dev->vv_data; |
| 443 | struct saa7146_format *fmt = NULL; |
| 444 | unsigned long flags; |
| 445 | unsigned int resource; |
| 446 | u32 dmas = 0; |
| 447 | DEB_EE(("dev:%p, fh:%p\n",dev,fh)); |
| 448 | |
| 449 | if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { |
| 450 | DEB_S(("not capturing.\n")); |
| 451 | return 0; |
| 452 | } |
| 453 | |
| 454 | if (vv->video_fh != fh) { |
| 455 | DEB_S(("capturing, but in another open.\n")); |
| 456 | return -EBUSY; |
| 457 | } |
| 458 | |
| 459 | fmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); |
| 460 | /* we need to have a valid format set here */ |
| 461 | BUG_ON(NULL == fmt); |
| 462 | |
| 463 | if (0 != (fmt->flags & FORMAT_IS_PLANAR)) { |
| 464 | resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS; |
| 465 | dmas = MASK_22 | MASK_21 | MASK_20; |
| 466 | } else { |
| 467 | resource = RESOURCE_DMA1_HPS; |
| 468 | dmas = MASK_22; |
| 469 | } |
| 470 | spin_lock_irqsave(&dev->slock,flags); |
| 471 | |
| 472 | /* disable rps0 */ |
| 473 | saa7146_write(dev, MC1, MASK_28); |
| 474 | |
| 475 | /* disable rps0 irqs */ |
| 476 | SAA7146_IER_DISABLE(dev, MASK_27); |
| 477 | |
| 478 | /* shut down all used video dma transfers */ |
| 479 | saa7146_write(dev, MC1, dmas); |
| 480 | |
| 481 | spin_unlock_irqrestore(&dev->slock, flags); |
| 482 | |
| 483 | vv->video_fh = NULL; |
| 484 | vv->video_status = 0; |
| 485 | |
| 486 | saa7146_res_free(fh, resource); |
| 487 | |
| 488 | if (vv->ov_suspend != NULL) { |
| 489 | saa7146_start_preview(vv->ov_suspend); |
| 490 | vv->ov_suspend = NULL; |
| 491 | } |
| 492 | |
| 493 | return 0; |
| 494 | } |
| 495 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 496 | static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | { |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 498 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 499 | |
| 500 | strcpy((char *)cap->driver, "saa7146 v4l2"); |
| 501 | strlcpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); |
| 502 | sprintf((char *)cap->bus_info, "PCI:%s", pci_name(dev->pci)); |
| 503 | cap->version = SAA7146_VERSION_CODE; |
| 504 | cap->capabilities = |
| 505 | V4L2_CAP_VIDEO_CAPTURE | |
| 506 | V4L2_CAP_VIDEO_OVERLAY | |
| 507 | V4L2_CAP_READWRITE | |
| 508 | V4L2_CAP_STREAMING; |
| 509 | cap->capabilities |= dev->ext_vv_data->capabilities; |
| 510 | return 0; |
| 511 | } |
| 512 | |
| 513 | static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) |
| 514 | { |
| 515 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | struct saa7146_vv *vv = dev->vv_data; |
| 517 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 518 | *fb = vv->ov_fb; |
| 519 | fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; |
| 520 | return 0; |
| 521 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 523 | static int vidioc_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) |
| 524 | { |
| 525 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 526 | struct saa7146_vv *vv = dev->vv_data; |
| 527 | struct saa7146_format *fmt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 529 | DEB_EE(("VIDIOC_S_FBUF\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 531 | if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) |
| 532 | return -EPERM; |
| 533 | |
| 534 | /* check args */ |
| 535 | fmt = format_by_fourcc(dev, fb->fmt.pixelformat); |
| 536 | if (NULL == fmt) |
| 537 | return -EINVAL; |
| 538 | |
| 539 | /* planar formats are not allowed for overlay video, clipping and video dma would clash */ |
| 540 | if (fmt->flags & FORMAT_IS_PLANAR) |
| 541 | DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n", |
| 542 | (char *)&fmt->pixelformat)); |
| 543 | |
| 544 | /* check if overlay is running */ |
| 545 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 546 | if (vv->video_fh != fh) { |
| 547 | DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n")); |
| 548 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | } |
| 550 | } |
| 551 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 552 | mutex_lock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 554 | /* ok, accept it */ |
| 555 | vv->ov_fb = *fb; |
| 556 | vv->ov_fmt = fmt; |
| 557 | if (0 == vv->ov_fb.fmt.bytesperline) |
| 558 | vv->ov_fb.fmt.bytesperline = |
| 559 | vv->ov_fb.fmt.width * fmt->depth / 8; |
| 560 | |
| 561 | mutex_unlock(&dev->lock); |
| 562 | return 0; |
| 563 | } |
| 564 | |
| 565 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) |
| 566 | { |
| 567 | if (f->index >= NUM_FORMATS) |
| 568 | return -EINVAL; |
| 569 | strlcpy((char *)f->description, formats[f->index].name, |
| 570 | sizeof(f->description)); |
| 571 | f->pixelformat = formats[f->index].pixelformat; |
| 572 | return 0; |
| 573 | } |
| 574 | |
| 575 | static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_fmtdesc *f) |
| 576 | { |
| 577 | return vidioc_enum_fmt_vid_cap(file, fh, f); |
| 578 | } |
| 579 | |
| 580 | static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c) |
| 581 | { |
| 582 | const struct v4l2_queryctrl *ctrl; |
| 583 | |
| 584 | if ((c->id < V4L2_CID_BASE || |
| 585 | c->id >= V4L2_CID_LASTP1) && |
| 586 | (c->id < V4L2_CID_PRIVATE_BASE || |
| 587 | c->id >= V4L2_CID_PRIVATE_LASTP1)) |
| 588 | return -EINVAL; |
| 589 | |
| 590 | ctrl = ctrl_by_id(c->id); |
| 591 | if (ctrl == NULL) |
| 592 | return -EINVAL; |
| 593 | |
| 594 | DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id)); |
| 595 | *c = *ctrl; |
| 596 | return 0; |
| 597 | } |
| 598 | |
| 599 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
| 600 | { |
| 601 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 602 | struct saa7146_vv *vv = dev->vv_data; |
| 603 | const struct v4l2_queryctrl *ctrl; |
| 604 | u32 value = 0; |
| 605 | |
| 606 | ctrl = ctrl_by_id(c->id); |
| 607 | if (NULL == ctrl) |
| 608 | return -EINVAL; |
| 609 | switch (c->id) { |
| 610 | case V4L2_CID_BRIGHTNESS: |
| 611 | value = saa7146_read(dev, BCS_CTRL); |
| 612 | c->value = 0xff & (value >> 24); |
| 613 | DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | break; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 615 | case V4L2_CID_CONTRAST: |
| 616 | value = saa7146_read(dev, BCS_CTRL); |
| 617 | c->value = 0x7f & (value >> 16); |
| 618 | DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | break; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 620 | case V4L2_CID_SATURATION: |
| 621 | value = saa7146_read(dev, BCS_CTRL); |
| 622 | c->value = 0x7f & (value >> 0); |
| 623 | DEB_D(("V4L2_CID_SATURATION: %d\n", c->value)); |
| 624 | break; |
| 625 | case V4L2_CID_VFLIP: |
| 626 | c->value = vv->vflip; |
| 627 | DEB_D(("V4L2_CID_VFLIP: %d\n", c->value)); |
| 628 | break; |
| 629 | case V4L2_CID_HFLIP: |
| 630 | c->value = vv->hflip; |
| 631 | DEB_D(("V4L2_CID_HFLIP: %d\n", c->value)); |
| 632 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | default: |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 634 | return -EINVAL; |
| 635 | } |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
| 640 | { |
| 641 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 642 | struct saa7146_vv *vv = dev->vv_data; |
| 643 | const struct v4l2_queryctrl *ctrl; |
| 644 | |
| 645 | ctrl = ctrl_by_id(c->id); |
| 646 | if (NULL == ctrl) { |
| 647 | DEB_D(("unknown control %d\n", c->id)); |
| 648 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | } |
| 650 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 651 | mutex_lock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 653 | switch (ctrl->type) { |
| 654 | case V4L2_CTRL_TYPE_BOOLEAN: |
| 655 | case V4L2_CTRL_TYPE_MENU: |
| 656 | case V4L2_CTRL_TYPE_INTEGER: |
| 657 | if (c->value < ctrl->minimum) |
| 658 | c->value = ctrl->minimum; |
| 659 | if (c->value > ctrl->maximum) |
| 660 | c->value = ctrl->maximum; |
| 661 | break; |
| 662 | default: |
| 663 | /* nothing */; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 666 | switch (c->id) { |
| 667 | case V4L2_CID_BRIGHTNESS: { |
| 668 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 669 | value &= 0x00ffffff; |
| 670 | value |= (c->value << 24); |
| 671 | saa7146_write(dev, BCS_CTRL, value); |
| 672 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 673 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 675 | case V4L2_CID_CONTRAST: { |
| 676 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 677 | value &= 0xff00ffff; |
| 678 | value |= (c->value << 16); |
| 679 | saa7146_write(dev, BCS_CTRL, value); |
| 680 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 681 | break; |
| 682 | } |
| 683 | case V4L2_CID_SATURATION: { |
| 684 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 685 | value &= 0xffffff00; |
| 686 | value |= (c->value << 0); |
| 687 | saa7146_write(dev, BCS_CTRL, value); |
| 688 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 689 | break; |
| 690 | } |
| 691 | case V4L2_CID_HFLIP: |
| 692 | /* fixme: we can support changing VFLIP and HFLIP here... */ |
| 693 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 694 | DEB_D(("V4L2_CID_HFLIP while active capture.\n")); |
| 695 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | return -EINVAL; |
| 697 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 698 | vv->hflip = c->value; |
| 699 | break; |
| 700 | case V4L2_CID_VFLIP: |
| 701 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 702 | DEB_D(("V4L2_CID_VFLIP while active capture.\n")); |
| 703 | mutex_unlock(&dev->lock); |
| 704 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 706 | vv->vflip = c->value; |
| 707 | break; |
| 708 | default: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 709 | mutex_unlock(&dev->lock); |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 710 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 712 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 714 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 715 | saa7146_stop_preview(fh); |
| 716 | saa7146_start_preview(fh); |
| 717 | } |
| 718 | return 0; |
| 719 | } |
| 720 | |
| 721 | static int vidioc_g_parm(struct file *file, void *fh, |
| 722 | struct v4l2_streamparm *parm) |
| 723 | { |
| 724 | if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 725 | return -EINVAL; |
| 726 | parm->parm.capture.readbuffers = 1; |
| 727 | /* fixme: only for PAL! */ |
| 728 | parm->parm.capture.timeperframe.numerator = 1; |
| 729 | parm->parm.capture.timeperframe.denominator = 25; |
| 730 | return 0; |
| 731 | } |
| 732 | |
| 733 | static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 734 | { |
| 735 | f->fmt.pix = ((struct saa7146_fh *)fh)->video_fmt; |
| 736 | return 0; |
| 737 | } |
| 738 | |
| 739 | static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) |
| 740 | { |
| 741 | f->fmt.win = ((struct saa7146_fh *)fh)->ov.win; |
| 742 | return 0; |
| 743 | } |
| 744 | |
| 745 | static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 746 | { |
| 747 | f->fmt.vbi = ((struct saa7146_fh *)fh)->vbi_fmt; |
| 748 | return 0; |
| 749 | } |
| 750 | |
| 751 | static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 752 | { |
| 753 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 754 | struct saa7146_vv *vv = dev->vv_data; |
| 755 | struct saa7146_format *fmt; |
| 756 | enum v4l2_field field; |
| 757 | int maxw, maxh; |
| 758 | int calc_bpl; |
| 759 | |
| 760 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); |
| 761 | |
| 762 | fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat); |
| 763 | if (NULL == fmt) |
| 764 | return -EINVAL; |
| 765 | |
| 766 | field = f->fmt.pix.field; |
| 767 | maxw = vv->standard->h_max_out; |
| 768 | maxh = vv->standard->v_max_out; |
| 769 | |
| 770 | if (V4L2_FIELD_ANY == field) { |
| 771 | field = (f->fmt.pix.height > maxh / 2) |
| 772 | ? V4L2_FIELD_INTERLACED |
| 773 | : V4L2_FIELD_BOTTOM; |
| 774 | } |
| 775 | switch (field) { |
| 776 | case V4L2_FIELD_ALTERNATE: |
| 777 | vv->last_field = V4L2_FIELD_TOP; |
| 778 | maxh = maxh / 2; |
| 779 | break; |
| 780 | case V4L2_FIELD_TOP: |
| 781 | case V4L2_FIELD_BOTTOM: |
| 782 | vv->last_field = V4L2_FIELD_INTERLACED; |
| 783 | maxh = maxh / 2; |
| 784 | break; |
| 785 | case V4L2_FIELD_INTERLACED: |
| 786 | vv->last_field = V4L2_FIELD_INTERLACED; |
| 787 | break; |
| 788 | default: |
| 789 | DEB_D(("no known field mode '%d'.\n", field)); |
| 790 | return -EINVAL; |
| 791 | } |
| 792 | |
| 793 | f->fmt.pix.field = field; |
| 794 | if (f->fmt.pix.width > maxw) |
| 795 | f->fmt.pix.width = maxw; |
| 796 | if (f->fmt.pix.height > maxh) |
| 797 | f->fmt.pix.height = maxh; |
| 798 | |
| 799 | calc_bpl = (f->fmt.pix.width * fmt->depth) / 8; |
| 800 | |
| 801 | if (f->fmt.pix.bytesperline < calc_bpl) |
| 802 | f->fmt.pix.bytesperline = calc_bpl; |
| 803 | |
| 804 | if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */ |
| 805 | f->fmt.pix.bytesperline = calc_bpl; |
| 806 | |
| 807 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; |
| 808 | DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width, |
| 809 | f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage)); |
| 810 | |
| 811 | return 0; |
| 812 | } |
| 813 | |
| 814 | |
| 815 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) |
| 816 | { |
| 817 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 818 | struct saa7146_vv *vv = dev->vv_data; |
| 819 | struct v4l2_window *win = &f->fmt.win; |
| 820 | enum v4l2_field field; |
| 821 | int maxw, maxh; |
| 822 | |
| 823 | DEB_EE(("dev:%p\n", dev)); |
| 824 | |
| 825 | if (NULL == vv->ov_fb.base) { |
| 826 | DEB_D(("no fb base set.\n")); |
| 827 | return -EINVAL; |
| 828 | } |
| 829 | if (NULL == vv->ov_fmt) { |
| 830 | DEB_D(("no fb fmt set.\n")); |
| 831 | return -EINVAL; |
| 832 | } |
| 833 | if (win->w.width < 48 || win->w.height < 32) { |
| 834 | DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height)); |
| 835 | return -EINVAL; |
| 836 | } |
| 837 | if (win->clipcount > 16) { |
| 838 | DEB_D(("clipcount too big.\n")); |
| 839 | return -EINVAL; |
| 840 | } |
| 841 | |
| 842 | field = win->field; |
| 843 | maxw = vv->standard->h_max_out; |
| 844 | maxh = vv->standard->v_max_out; |
| 845 | |
| 846 | if (V4L2_FIELD_ANY == field) { |
| 847 | field = (win->w.height > maxh / 2) |
| 848 | ? V4L2_FIELD_INTERLACED |
| 849 | : V4L2_FIELD_TOP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 851 | switch (field) { |
| 852 | case V4L2_FIELD_TOP: |
| 853 | case V4L2_FIELD_BOTTOM: |
| 854 | case V4L2_FIELD_ALTERNATE: |
| 855 | maxh = maxh / 2; |
| 856 | break; |
| 857 | case V4L2_FIELD_INTERLACED: |
| 858 | break; |
| 859 | default: |
| 860 | DEB_D(("no known field mode '%d'.\n", field)); |
| 861 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 864 | win->field = field; |
| 865 | if (win->w.width > maxw) |
| 866 | win->w.width = maxw; |
| 867 | if (win->w.height > maxh) |
| 868 | win->w.height = maxh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 870 | return 0; |
| 871 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 873 | static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) |
| 874 | { |
| 875 | struct saa7146_fh *fh = __fh; |
| 876 | struct saa7146_dev *dev = fh->dev; |
| 877 | struct saa7146_vv *vv = dev->vv_data; |
| 878 | int err; |
| 879 | |
| 880 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); |
| 881 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 882 | DEB_EE(("streaming capture is active\n")); |
| 883 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 885 | err = vidioc_try_fmt_vid_cap(file, fh, f); |
| 886 | if (0 != err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | return err; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 888 | fh->video_fmt = f->fmt.pix; |
| 889 | DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat)); |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) |
| 894 | { |
| 895 | struct saa7146_fh *fh = __fh; |
| 896 | struct saa7146_dev *dev = fh->dev; |
| 897 | struct saa7146_vv *vv = dev->vv_data; |
| 898 | int err; |
| 899 | |
| 900 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh)); |
| 901 | err = vidioc_try_fmt_vid_overlay(file, fh, f); |
| 902 | if (0 != err) |
| 903 | return err; |
| 904 | mutex_lock(&dev->lock); |
| 905 | fh->ov.win = f->fmt.win; |
| 906 | fh->ov.nclips = f->fmt.win.clipcount; |
| 907 | if (fh->ov.nclips > 16) |
| 908 | fh->ov.nclips = 16; |
| 909 | if (copy_from_user(fh->ov.clips, f->fmt.win.clips, |
| 910 | sizeof(struct v4l2_clip) * fh->ov.nclips)) { |
| 911 | mutex_unlock(&dev->lock); |
| 912 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 914 | |
| 915 | /* fh->ov.fh is used to indicate that we have valid overlay informations, too */ |
| 916 | fh->ov.fh = fh; |
| 917 | |
| 918 | mutex_unlock(&dev->lock); |
| 919 | |
| 920 | /* check if our current overlay is active */ |
| 921 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 922 | saa7146_stop_preview(fh); |
| 923 | saa7146_start_preview(fh); |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 924 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 925 | return 0; |
| 926 | } |
| 927 | |
| 928 | static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) |
| 929 | { |
| 930 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 931 | struct saa7146_vv *vv = dev->vv_data; |
| 932 | |
| 933 | *norm = vv->standard->id; |
| 934 | return 0; |
| 935 | } |
| 936 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) |
| 938 | PAL / NTSC / SECAM. if your hardware does not (or does more) |
| 939 | -- override this function in your extension */ |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 940 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | case VIDIOC_ENUMSTD: |
| 942 | { |
| 943 | struct v4l2_standard *e = arg; |
| 944 | if (e->index < 0 ) |
| 945 | return -EINVAL; |
| 946 | if( e->index < dev->ext_vv_data->num_stds ) { |
| 947 | DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index)); |
| 948 | v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); |
| 949 | return 0; |
| 950 | } |
| 951 | return -EINVAL; |
| 952 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 953 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 955 | static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id) |
| 956 | { |
| 957 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 958 | struct saa7146_vv *vv = dev->vv_data; |
| 959 | int found = 0; |
| 960 | int err, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 962 | DEB_EE(("VIDIOC_S_STD\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 964 | if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { |
| 965 | DEB_D(("cannot change video standard while streaming capture is active\n")); |
| 966 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 969 | if ((vv->video_status & STATUS_OVERLAY) != 0) { |
| 970 | vv->ov_suspend = vv->video_fh; |
| 971 | err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | if (0 != err) { |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 973 | DEB_D(("suspending video failed. aborting\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | return err; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 975 | } |
| 976 | } |
Brandon Philips | 49ee718 | 2007-10-05 16:26:27 -0300 | [diff] [blame] | 977 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 978 | mutex_lock(&dev->lock); |
| 979 | |
| 980 | for (i = 0; i < dev->ext_vv_data->num_stds; i++) |
| 981 | if (*id & dev->ext_vv_data->stds[i].id) |
| 982 | break; |
| 983 | if (i != dev->ext_vv_data->num_stds) { |
| 984 | vv->standard = &dev->ext_vv_data->stds[i]; |
| 985 | if (NULL != dev->ext_vv_data->std_callback) |
| 986 | dev->ext_vv_data->std_callback(dev, vv->standard); |
| 987 | found = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 989 | |
| 990 | mutex_unlock(&dev->lock); |
| 991 | |
| 992 | if (vv->ov_suspend != NULL) { |
| 993 | saa7146_start_preview(vv->ov_suspend); |
| 994 | vv->ov_suspend = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 996 | |
| 997 | if (!found) { |
| 998 | DEB_EE(("VIDIOC_S_STD: standard not found.\n")); |
| 999 | return -EINVAL; |
| 1000 | } |
| 1001 | |
| 1002 | DEB_EE(("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | return 0; |
| 1004 | } |
| 1005 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame^] | 1006 | static int vidioc_overlay(struct file *file, void *fh, unsigned int on) |
| 1007 | { |
| 1008 | int err; |
| 1009 | |
| 1010 | DEB_D(("VIDIOC_OVERLAY on:%d\n", on)); |
| 1011 | if (on) |
| 1012 | err = saa7146_start_preview(fh); |
| 1013 | else |
| 1014 | err = saa7146_stop_preview(fh); |
| 1015 | return err; |
| 1016 | } |
| 1017 | |
| 1018 | static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) |
| 1019 | { |
| 1020 | struct saa7146_fh *fh = __fh; |
| 1021 | |
| 1022 | if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1023 | return videobuf_reqbufs(&fh->video_q, b); |
| 1024 | if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1025 | return videobuf_reqbufs(&fh->vbi_q, b); |
| 1026 | return -EINVAL; |
| 1027 | } |
| 1028 | |
| 1029 | static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1030 | { |
| 1031 | struct saa7146_fh *fh = __fh; |
| 1032 | |
| 1033 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1034 | return videobuf_querybuf(&fh->video_q, buf); |
| 1035 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1036 | return videobuf_querybuf(&fh->vbi_q, buf); |
| 1037 | return -EINVAL; |
| 1038 | } |
| 1039 | |
| 1040 | static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1041 | { |
| 1042 | struct saa7146_fh *fh = __fh; |
| 1043 | |
| 1044 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1045 | return videobuf_qbuf(&fh->video_q, buf); |
| 1046 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1047 | return videobuf_qbuf(&fh->vbi_q, buf); |
| 1048 | return -EINVAL; |
| 1049 | } |
| 1050 | |
| 1051 | static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1052 | { |
| 1053 | struct saa7146_fh *fh = __fh; |
| 1054 | |
| 1055 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1056 | return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK); |
| 1057 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1058 | return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK); |
| 1059 | return -EINVAL; |
| 1060 | } |
| 1061 | |
| 1062 | static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) |
| 1063 | { |
| 1064 | struct saa7146_fh *fh = __fh; |
| 1065 | int err; |
| 1066 | |
| 1067 | DEB_D(("VIDIOC_STREAMON, type:%d\n", type)); |
| 1068 | |
| 1069 | err = video_begin(fh); |
| 1070 | if (err) |
| 1071 | return err; |
| 1072 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1073 | return videobuf_streamon(&fh->video_q); |
| 1074 | if (type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1075 | return videobuf_streamon(&fh->vbi_q); |
| 1076 | return -EINVAL; |
| 1077 | } |
| 1078 | |
| 1079 | static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) |
| 1080 | { |
| 1081 | struct saa7146_fh *fh = __fh; |
| 1082 | struct saa7146_dev *dev = fh->dev; |
| 1083 | struct saa7146_vv *vv = dev->vv_data; |
| 1084 | int err; |
| 1085 | |
| 1086 | DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type)); |
| 1087 | |
| 1088 | /* ugly: we need to copy some checks from video_end(), |
| 1089 | because videobuf_streamoff() relies on the capture running. |
| 1090 | check and fix this */ |
| 1091 | if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { |
| 1092 | DEB_S(("not capturing.\n")); |
| 1093 | return 0; |
| 1094 | } |
| 1095 | |
| 1096 | if (vv->video_fh != fh) { |
| 1097 | DEB_S(("capturing, but in another open.\n")); |
| 1098 | return -EBUSY; |
| 1099 | } |
| 1100 | |
| 1101 | err = -EINVAL; |
| 1102 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1103 | err = videobuf_streamoff(&fh->video_q); |
| 1104 | else if (type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1105 | err = videobuf_streamoff(&fh->vbi_q); |
| 1106 | if (0 != err) { |
| 1107 | DEB_D(("warning: videobuf_streamoff() failed.\n")); |
| 1108 | video_end(fh, file); |
| 1109 | } else { |
| 1110 | err = video_end(fh, file); |
| 1111 | } |
| 1112 | return err; |
| 1113 | } |
| 1114 | |
| 1115 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1116 | static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf) |
| 1117 | { |
| 1118 | struct saa7146_fh *fh = __fh; |
| 1119 | struct videobuf_queue *q = &fh->video_q; |
| 1120 | int err, i; |
| 1121 | |
| 1122 | /* fixme: number of capture buffers and sizes for v4l apps */ |
| 1123 | int gbuffers = 2; |
| 1124 | int gbufsize = 768 * 576 * 4; |
| 1125 | |
| 1126 | DEB_D(("VIDIOCGMBUF \n")); |
| 1127 | |
| 1128 | q = &fh->video_q; |
| 1129 | err = videobuf_mmap_setup(q, gbuffers, gbufsize, |
| 1130 | V4L2_MEMORY_MMAP); |
| 1131 | if (err < 0) |
| 1132 | return err; |
| 1133 | |
| 1134 | gbuffers = err; |
| 1135 | memset(mbuf, 0, sizeof(*mbuf)); |
| 1136 | mbuf->frames = gbuffers; |
| 1137 | mbuf->size = gbuffers * gbufsize; |
| 1138 | for (i = 0; i < gbuffers; i++) |
| 1139 | mbuf->offsets[i] = i * gbufsize; |
| 1140 | return 0; |
| 1141 | } |
| 1142 | #endif |
| 1143 | |
| 1144 | const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { |
| 1145 | .vidioc_querycap = vidioc_querycap, |
| 1146 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1147 | .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, |
| 1148 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1149 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1150 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
| 1151 | .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, |
| 1152 | .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, |
| 1153 | .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, |
| 1154 | .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
| 1155 | |
| 1156 | .vidioc_overlay = vidioc_overlay, |
| 1157 | .vidioc_g_fbuf = vidioc_g_fbuf, |
| 1158 | .vidioc_s_fbuf = vidioc_s_fbuf, |
| 1159 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1160 | .vidioc_querybuf = vidioc_querybuf, |
| 1161 | .vidioc_qbuf = vidioc_qbuf, |
| 1162 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1163 | .vidioc_g_std = vidioc_g_std, |
| 1164 | .vidioc_s_std = vidioc_s_std, |
| 1165 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1166 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1167 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1168 | .vidioc_streamon = vidioc_streamon, |
| 1169 | .vidioc_streamoff = vidioc_streamoff, |
| 1170 | .vidioc_g_parm = vidioc_g_parm, |
| 1171 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1172 | .vidiocgmbuf = vidiocgmbuf, |
| 1173 | #endif |
| 1174 | }; |
| 1175 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | /*********************************************************************************/ |
| 1177 | /* buffer handling functions */ |
| 1178 | |
| 1179 | static int buffer_activate (struct saa7146_dev *dev, |
| 1180 | struct saa7146_buf *buf, |
| 1181 | struct saa7146_buf *next) |
| 1182 | { |
| 1183 | struct saa7146_vv *vv = dev->vv_data; |
| 1184 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1185 | buf->vb.state = VIDEOBUF_ACTIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | saa7146_set_capture(dev,buf,next); |
| 1187 | |
| 1188 | mod_timer(&vv->video_q.timeout, jiffies+BUFFER_TIMEOUT); |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | static int buffer_prepare(struct videobuf_queue *q, |
| 1193 | struct videobuf_buffer *vb, enum v4l2_field field) |
| 1194 | { |
| 1195 | struct file *file = q->priv_data; |
| 1196 | struct saa7146_fh *fh = file->private_data; |
| 1197 | struct saa7146_dev *dev = fh->dev; |
| 1198 | struct saa7146_vv *vv = dev->vv_data; |
| 1199 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1200 | int size,err = 0; |
| 1201 | |
| 1202 | DEB_CAP(("vbuf:%p\n",vb)); |
| 1203 | |
| 1204 | /* sanity checks */ |
| 1205 | if (fh->video_fmt.width < 48 || |
| 1206 | fh->video_fmt.height < 32 || |
| 1207 | fh->video_fmt.width > vv->standard->h_max_out || |
| 1208 | fh->video_fmt.height > vv->standard->v_max_out) { |
| 1209 | DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height)); |
| 1210 | return -EINVAL; |
| 1211 | } |
| 1212 | |
| 1213 | size = fh->video_fmt.sizeimage; |
| 1214 | if (0 != buf->vb.baddr && buf->vb.bsize < size) { |
| 1215 | DEB_D(("size mismatch.\n")); |
| 1216 | return -EINVAL; |
| 1217 | } |
| 1218 | |
| 1219 | DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", |
| 1220 | fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field])); |
| 1221 | if (buf->vb.width != fh->video_fmt.width || |
| 1222 | buf->vb.bytesperline != fh->video_fmt.bytesperline || |
| 1223 | buf->vb.height != fh->video_fmt.height || |
| 1224 | buf->vb.size != size || |
| 1225 | buf->vb.field != field || |
| 1226 | buf->vb.field != fh->video_fmt.field || |
| 1227 | buf->fmt != &fh->video_fmt) { |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1228 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1229 | } |
| 1230 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1231 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | struct saa7146_format *sfmt; |
| 1233 | |
| 1234 | buf->vb.bytesperline = fh->video_fmt.bytesperline; |
| 1235 | buf->vb.width = fh->video_fmt.width; |
| 1236 | buf->vb.height = fh->video_fmt.height; |
| 1237 | buf->vb.size = size; |
| 1238 | buf->vb.field = field; |
| 1239 | buf->fmt = &fh->video_fmt; |
| 1240 | buf->vb.field = fh->video_fmt.field; |
| 1241 | |
| 1242 | sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); |
| 1243 | |
| 1244 | if( 0 != IS_PLANAR(sfmt->trans)) { |
| 1245 | saa7146_pgtable_free(dev->pci, &buf->pt[0]); |
| 1246 | saa7146_pgtable_free(dev->pci, &buf->pt[1]); |
| 1247 | saa7146_pgtable_free(dev->pci, &buf->pt[2]); |
| 1248 | |
| 1249 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
| 1250 | saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); |
| 1251 | saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); |
| 1252 | } else { |
| 1253 | saa7146_pgtable_free(dev->pci, &buf->pt[0]); |
| 1254 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
| 1255 | } |
| 1256 | |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1257 | err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | if (err) |
| 1259 | goto oops; |
| 1260 | err = saa7146_pgtable_build(dev,buf); |
| 1261 | if (err) |
| 1262 | goto oops; |
| 1263 | } |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1264 | buf->vb.state = VIDEOBUF_PREPARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | buf->activate = buffer_activate; |
| 1266 | |
| 1267 | return 0; |
| 1268 | |
| 1269 | oops: |
| 1270 | DEB_D(("error out.\n")); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1271 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | |
| 1273 | return err; |
| 1274 | } |
| 1275 | |
| 1276 | static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) |
| 1277 | { |
| 1278 | struct file *file = q->priv_data; |
| 1279 | struct saa7146_fh *fh = file->private_data; |
| 1280 | |
| 1281 | if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) |
| 1282 | *count = MAX_SAA7146_CAPTURE_BUFFERS; |
| 1283 | |
| 1284 | *size = fh->video_fmt.sizeimage; |
| 1285 | |
| 1286 | /* check if we exceed the "max_memory" parameter */ |
| 1287 | if( (*count * *size) > (max_memory*1048576) ) { |
| 1288 | *count = (max_memory*1048576) / *size; |
| 1289 | } |
| 1290 | |
| 1291 | DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size)); |
| 1292 | |
| 1293 | return 0; |
| 1294 | } |
| 1295 | |
| 1296 | static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) |
| 1297 | { |
| 1298 | struct file *file = q->priv_data; |
| 1299 | struct saa7146_fh *fh = file->private_data; |
| 1300 | struct saa7146_dev *dev = fh->dev; |
| 1301 | struct saa7146_vv *vv = dev->vv_data; |
| 1302 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1303 | |
| 1304 | DEB_CAP(("vbuf:%p\n",vb)); |
| 1305 | saa7146_buffer_queue(fh->dev,&vv->video_q,buf); |
| 1306 | } |
| 1307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) |
| 1309 | { |
| 1310 | struct file *file = q->priv_data; |
| 1311 | struct saa7146_fh *fh = file->private_data; |
| 1312 | struct saa7146_dev *dev = fh->dev; |
| 1313 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1314 | |
| 1315 | DEB_CAP(("vbuf:%p\n",vb)); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1316 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | } |
| 1318 | |
| 1319 | static struct videobuf_queue_ops video_qops = { |
| 1320 | .buf_setup = buffer_setup, |
| 1321 | .buf_prepare = buffer_prepare, |
| 1322 | .buf_queue = buffer_queue, |
| 1323 | .buf_release = buffer_release, |
| 1324 | }; |
| 1325 | |
| 1326 | /********************************************************************************/ |
| 1327 | /* file operations */ |
| 1328 | |
| 1329 | static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) |
| 1330 | { |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 1331 | INIT_LIST_HEAD(&vv->video_q.queue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1332 | |
| 1333 | init_timer(&vv->video_q.timeout); |
| 1334 | vv->video_q.timeout.function = saa7146_buffer_timeout; |
| 1335 | vv->video_q.timeout.data = (unsigned long)(&vv->video_q); |
| 1336 | vv->video_q.dev = dev; |
| 1337 | |
| 1338 | /* set some default values */ |
| 1339 | vv->standard = &dev->ext_vv_data->stds[0]; |
| 1340 | |
| 1341 | /* FIXME: what's this? */ |
| 1342 | vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A; |
| 1343 | vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; |
| 1344 | } |
| 1345 | |
| 1346 | |
| 1347 | static int video_open(struct saa7146_dev *dev, struct file *file) |
| 1348 | { |
| 1349 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; |
| 1350 | struct saa7146_format *sfmt; |
| 1351 | |
| 1352 | fh->video_fmt.width = 384; |
| 1353 | fh->video_fmt.height = 288; |
| 1354 | fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24; |
| 1355 | fh->video_fmt.bytesperline = 0; |
| 1356 | fh->video_fmt.field = V4L2_FIELD_ANY; |
| 1357 | sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); |
| 1358 | fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8; |
| 1359 | |
Guennadi Liakhovetski | 0705135 | 2008-04-22 14:42:13 -0300 | [diff] [blame] | 1360 | videobuf_queue_sg_init(&fh->video_q, &video_qops, |
| 1361 | &dev->pci->dev, &dev->slock, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 1363 | V4L2_FIELD_INTERLACED, |
| 1364 | sizeof(struct saa7146_buf), |
| 1365 | file); |
| 1366 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | return 0; |
| 1368 | } |
| 1369 | |
| 1370 | |
| 1371 | static void video_close(struct saa7146_dev *dev, struct file *file) |
| 1372 | { |
| 1373 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; |
| 1374 | struct saa7146_vv *vv = dev->vv_data; |
Hartmut Birr | 2970c49 | 2007-04-22 06:57:26 -0300 | [diff] [blame] | 1375 | struct videobuf_queue *q = &fh->video_q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | int err; |
| 1377 | |
| 1378 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 1379 | err = video_end(fh, file); |
| 1380 | } else if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 1381 | err = saa7146_stop_preview(fh); |
| 1382 | } |
| 1383 | |
Brandon Philips | 19bc513 | 2007-11-13 20:05:38 -0300 | [diff] [blame] | 1384 | videobuf_stop(q); |
Hartmut Birr | 2970c49 | 2007-04-22 06:57:26 -0300 | [diff] [blame] | 1385 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | /* hmm, why is this function declared void? */ |
| 1387 | /* return err */ |
| 1388 | } |
| 1389 | |
| 1390 | |
| 1391 | static void video_irq_done(struct saa7146_dev *dev, unsigned long st) |
| 1392 | { |
| 1393 | struct saa7146_vv *vv = dev->vv_data; |
| 1394 | struct saa7146_dmaqueue *q = &vv->video_q; |
| 1395 | |
| 1396 | spin_lock(&dev->slock); |
| 1397 | DEB_CAP(("called.\n")); |
| 1398 | |
| 1399 | /* only finish the buffer if we have one... */ |
| 1400 | if( NULL != q->curr ) { |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1401 | saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | } |
| 1403 | saa7146_buffer_next(dev,q,0); |
| 1404 | |
| 1405 | spin_unlock(&dev->slock); |
| 1406 | } |
| 1407 | |
| 1408 | static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) |
| 1409 | { |
| 1410 | struct saa7146_fh *fh = file->private_data; |
| 1411 | struct saa7146_dev *dev = fh->dev; |
| 1412 | struct saa7146_vv *vv = dev->vv_data; |
| 1413 | ssize_t ret = 0; |
| 1414 | |
| 1415 | DEB_EE(("called.\n")); |
| 1416 | |
| 1417 | if ((vv->video_status & STATUS_CAPTURE) != 0) { |
| 1418 | /* fixme: should we allow read() captures while streaming capture? */ |
| 1419 | if (vv->video_fh == fh) { |
| 1420 | DEB_S(("already capturing.\n")); |
| 1421 | return -EBUSY; |
| 1422 | } |
| 1423 | DEB_S(("already capturing in another open.\n")); |
| 1424 | return -EBUSY; |
| 1425 | } |
| 1426 | |
| 1427 | ret = video_begin(fh); |
| 1428 | if( 0 != ret) { |
| 1429 | goto out; |
| 1430 | } |
| 1431 | |
| 1432 | ret = videobuf_read_one(&fh->video_q , data, count, ppos, |
| 1433 | file->f_flags & O_NONBLOCK); |
| 1434 | if (ret != 0) { |
| 1435 | video_end(fh, file); |
| 1436 | } else { |
| 1437 | ret = video_end(fh, file); |
| 1438 | } |
| 1439 | out: |
| 1440 | /* restart overlay if it was active before */ |
| 1441 | if (vv->ov_suspend != NULL) { |
| 1442 | saa7146_start_preview(vv->ov_suspend); |
| 1443 | vv->ov_suspend = NULL; |
| 1444 | } |
| 1445 | |
| 1446 | return ret; |
| 1447 | } |
| 1448 | |
| 1449 | struct saa7146_use_ops saa7146_video_uops = { |
| 1450 | .init = video_init, |
| 1451 | .open = video_open, |
| 1452 | .release = video_close, |
| 1453 | .irq_done = video_irq_done, |
| 1454 | .read = video_read, |
| 1455 | }; |