Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <media/saa7146_vv.h> |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 2 | #include <media/v4l2-chip-ident.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 101 | 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] | 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; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 107 | struct v4l2_format fmt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 139 | fmt.fmt.win = fh->ov.win; |
| 140 | err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | if (0 != err) { |
| 142 | saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); |
| 143 | return -EBUSY; |
| 144 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 145 | fh->ov.win = fmt.fmt.win; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |
Adrian Bunk | 5d7dc8c | 2006-04-11 10:26:57 -0300 | [diff] [blame] | 164 | EXPORT_SYMBOL_GPL(saa7146_start_preview); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |
Adrian Bunk | 5d7dc8c | 2006-04-11 10:26:57 -0300 | [diff] [blame] | 199 | EXPORT_SYMBOL_GPL(saa7146_stop_preview); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 213 | .flags = V4L2_CTRL_FLAG_SLIDER, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 222 | .flags = V4L2_CTRL_FLAG_SLIDER, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 231 | .flags = V4L2_CTRL_FLAG_SLIDER, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | },{ |
| 233 | .id = V4L2_CID_VFLIP, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 234 | .name = "Vertical Flip", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | .minimum = 0, |
| 236 | .maximum = 1, |
| 237 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 238 | },{ |
| 239 | .id = V4L2_CID_HFLIP, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 240 | .name = "Horizontal Flip", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Mauro Carvalho Chehab | c1accaa | 2007-08-23 16:37:49 -0300 | [diff] [blame] | 266 | struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); |
| 267 | struct scatterlist *list = dma->sglist; |
| 268 | int length = dma->sglen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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]; |
Al Viro | a36ef6b | 2008-06-22 14:19:19 -0300 | [diff] [blame] | 277 | __le32 *ptr1, *ptr2, *ptr3; |
| 278 | __le32 fill; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. */ |
Hans Verkuil | 429e908 | 2008-07-27 14:08:54 -0300 | [diff] [blame] | 328 | pt1->offset = dma->sglist->offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 500 | 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] | 501 | { |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 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 | } |
| 516 | |
| 517 | static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) |
| 518 | { |
| 519 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | struct saa7146_vv *vv = dev->vv_data; |
| 521 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 522 | *fb = vv->ov_fb; |
| 523 | fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; |
| 524 | return 0; |
| 525 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 533 | DEB_EE(("VIDIOC_S_FBUF\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 535 | if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) |
| 536 | return -EPERM; |
| 537 | |
| 538 | /* check args */ |
| 539 | fmt = format_by_fourcc(dev, fb->fmt.pixelformat); |
| 540 | if (NULL == fmt) |
| 541 | return -EINVAL; |
| 542 | |
| 543 | /* planar formats are not allowed for overlay video, clipping and video dma would clash */ |
| 544 | if (fmt->flags & FORMAT_IS_PLANAR) |
| 545 | DEB_S(("planar pixelformat '%4.4s' not allowed for overlay\n", |
| 546 | (char *)&fmt->pixelformat)); |
| 547 | |
| 548 | /* check if overlay is running */ |
| 549 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 550 | if (vv->video_fh != fh) { |
| 551 | DEB_D(("refusing to change framebuffer informations while overlay is active in another open.\n")); |
| 552 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | } |
| 554 | } |
| 555 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 556 | mutex_lock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 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 | |
| 579 | static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_fmtdesc *f) |
| 580 | { |
| 581 | return vidioc_enum_fmt_vid_cap(file, fh, f); |
| 582 | } |
| 583 | |
| 584 | static int vidioc_queryctrl(struct file *file, void *fh, struct v4l2_queryctrl *c) |
| 585 | { |
| 586 | const struct v4l2_queryctrl *ctrl; |
| 587 | |
| 588 | if ((c->id < V4L2_CID_BASE || |
| 589 | c->id >= V4L2_CID_LASTP1) && |
| 590 | (c->id < V4L2_CID_PRIVATE_BASE || |
| 591 | c->id >= V4L2_CID_PRIVATE_LASTP1)) |
| 592 | return -EINVAL; |
| 593 | |
| 594 | ctrl = ctrl_by_id(c->id); |
| 595 | if (ctrl == NULL) |
| 596 | return -EINVAL; |
| 597 | |
| 598 | DEB_EE(("VIDIOC_QUERYCTRL: id:%d\n", c->id)); |
| 599 | *c = *ctrl; |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
| 604 | { |
| 605 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 606 | struct saa7146_vv *vv = dev->vv_data; |
| 607 | const struct v4l2_queryctrl *ctrl; |
| 608 | u32 value = 0; |
| 609 | |
| 610 | ctrl = ctrl_by_id(c->id); |
| 611 | if (NULL == ctrl) |
| 612 | return -EINVAL; |
| 613 | switch (c->id) { |
| 614 | case V4L2_CID_BRIGHTNESS: |
| 615 | value = saa7146_read(dev, BCS_CTRL); |
| 616 | c->value = 0xff & (value >> 24); |
| 617 | DEB_D(("V4L2_CID_BRIGHTNESS: %d\n", c->value)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | break; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 619 | case V4L2_CID_CONTRAST: |
| 620 | value = saa7146_read(dev, BCS_CTRL); |
| 621 | c->value = 0x7f & (value >> 16); |
| 622 | DEB_D(("V4L2_CID_CONTRAST: %d\n", c->value)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | break; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 624 | case V4L2_CID_SATURATION: |
| 625 | value = saa7146_read(dev, BCS_CTRL); |
| 626 | c->value = 0x7f & (value >> 0); |
| 627 | DEB_D(("V4L2_CID_SATURATION: %d\n", c->value)); |
| 628 | break; |
| 629 | case V4L2_CID_VFLIP: |
| 630 | c->value = vv->vflip; |
| 631 | DEB_D(("V4L2_CID_VFLIP: %d\n", c->value)); |
| 632 | break; |
| 633 | case V4L2_CID_HFLIP: |
| 634 | c->value = vv->hflip; |
| 635 | DEB_D(("V4L2_CID_HFLIP: %d\n", c->value)); |
| 636 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | default: |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 638 | return -EINVAL; |
| 639 | } |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
| 644 | { |
| 645 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 646 | struct saa7146_vv *vv = dev->vv_data; |
| 647 | const struct v4l2_queryctrl *ctrl; |
| 648 | |
| 649 | ctrl = ctrl_by_id(c->id); |
| 650 | if (NULL == ctrl) { |
| 651 | DEB_D(("unknown control %d\n", c->id)); |
| 652 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | } |
| 654 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 655 | mutex_lock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 657 | switch (ctrl->type) { |
| 658 | case V4L2_CTRL_TYPE_BOOLEAN: |
| 659 | case V4L2_CTRL_TYPE_MENU: |
| 660 | case V4L2_CTRL_TYPE_INTEGER: |
| 661 | if (c->value < ctrl->minimum) |
| 662 | c->value = ctrl->minimum; |
| 663 | if (c->value > ctrl->maximum) |
| 664 | c->value = ctrl->maximum; |
| 665 | break; |
| 666 | default: |
| 667 | /* nothing */; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 670 | switch (c->id) { |
| 671 | case V4L2_CID_BRIGHTNESS: { |
| 672 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 673 | value &= 0x00ffffff; |
| 674 | value |= (c->value << 24); |
| 675 | saa7146_write(dev, BCS_CTRL, value); |
| 676 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 677 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 679 | case V4L2_CID_CONTRAST: { |
| 680 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 681 | value &= 0xff00ffff; |
| 682 | value |= (c->value << 16); |
| 683 | saa7146_write(dev, BCS_CTRL, value); |
| 684 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 685 | break; |
| 686 | } |
| 687 | case V4L2_CID_SATURATION: { |
| 688 | u32 value = saa7146_read(dev, BCS_CTRL); |
| 689 | value &= 0xffffff00; |
| 690 | value |= (c->value << 0); |
| 691 | saa7146_write(dev, BCS_CTRL, value); |
| 692 | saa7146_write(dev, MC2, MASK_22 | MASK_06); |
| 693 | break; |
| 694 | } |
| 695 | case V4L2_CID_HFLIP: |
| 696 | /* fixme: we can support changing VFLIP and HFLIP here... */ |
| 697 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 698 | DEB_D(("V4L2_CID_HFLIP while active capture.\n")); |
| 699 | mutex_unlock(&dev->lock); |
Hans Verkuil | 5a5b964 | 2009-02-07 11:25:05 -0300 | [diff] [blame^] | 700 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 702 | vv->hflip = c->value; |
| 703 | break; |
| 704 | case V4L2_CID_VFLIP: |
| 705 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 706 | DEB_D(("V4L2_CID_VFLIP while active capture.\n")); |
| 707 | mutex_unlock(&dev->lock); |
Hans Verkuil | 5a5b964 | 2009-02-07 11:25:05 -0300 | [diff] [blame^] | 708 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 710 | vv->vflip = c->value; |
| 711 | break; |
| 712 | default: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 713 | mutex_unlock(&dev->lock); |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 714 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 716 | mutex_unlock(&dev->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 718 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 719 | saa7146_stop_preview(fh); |
| 720 | saa7146_start_preview(fh); |
| 721 | } |
| 722 | return 0; |
| 723 | } |
| 724 | |
| 725 | static int vidioc_g_parm(struct file *file, void *fh, |
| 726 | struct v4l2_streamparm *parm) |
| 727 | { |
| 728 | if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 729 | return -EINVAL; |
| 730 | parm->parm.capture.readbuffers = 1; |
| 731 | /* fixme: only for PAL! */ |
| 732 | parm->parm.capture.timeperframe.numerator = 1; |
| 733 | parm->parm.capture.timeperframe.denominator = 25; |
| 734 | return 0; |
| 735 | } |
| 736 | |
| 737 | static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 738 | { |
| 739 | f->fmt.pix = ((struct saa7146_fh *)fh)->video_fmt; |
| 740 | return 0; |
| 741 | } |
| 742 | |
| 743 | static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) |
| 744 | { |
| 745 | f->fmt.win = ((struct saa7146_fh *)fh)->ov.win; |
| 746 | return 0; |
| 747 | } |
| 748 | |
| 749 | static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 750 | { |
| 751 | f->fmt.vbi = ((struct saa7146_fh *)fh)->vbi_fmt; |
| 752 | return 0; |
| 753 | } |
| 754 | |
| 755 | static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) |
| 756 | { |
| 757 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 758 | struct saa7146_vv *vv = dev->vv_data; |
| 759 | struct saa7146_format *fmt; |
| 760 | enum v4l2_field field; |
| 761 | int maxw, maxh; |
| 762 | int calc_bpl; |
| 763 | |
| 764 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); |
| 765 | |
| 766 | fmt = format_by_fourcc(dev, f->fmt.pix.pixelformat); |
| 767 | if (NULL == fmt) |
| 768 | return -EINVAL; |
| 769 | |
| 770 | field = f->fmt.pix.field; |
| 771 | maxw = vv->standard->h_max_out; |
| 772 | maxh = vv->standard->v_max_out; |
| 773 | |
| 774 | if (V4L2_FIELD_ANY == field) { |
| 775 | field = (f->fmt.pix.height > maxh / 2) |
| 776 | ? V4L2_FIELD_INTERLACED |
| 777 | : V4L2_FIELD_BOTTOM; |
| 778 | } |
| 779 | switch (field) { |
| 780 | case V4L2_FIELD_ALTERNATE: |
| 781 | vv->last_field = V4L2_FIELD_TOP; |
| 782 | maxh = maxh / 2; |
| 783 | break; |
| 784 | case V4L2_FIELD_TOP: |
| 785 | case V4L2_FIELD_BOTTOM: |
| 786 | vv->last_field = V4L2_FIELD_INTERLACED; |
| 787 | maxh = maxh / 2; |
| 788 | break; |
| 789 | case V4L2_FIELD_INTERLACED: |
| 790 | vv->last_field = V4L2_FIELD_INTERLACED; |
| 791 | break; |
| 792 | default: |
| 793 | DEB_D(("no known field mode '%d'.\n", field)); |
| 794 | return -EINVAL; |
| 795 | } |
| 796 | |
| 797 | f->fmt.pix.field = field; |
| 798 | if (f->fmt.pix.width > maxw) |
| 799 | f->fmt.pix.width = maxw; |
| 800 | if (f->fmt.pix.height > maxh) |
| 801 | f->fmt.pix.height = maxh; |
| 802 | |
| 803 | calc_bpl = (f->fmt.pix.width * fmt->depth) / 8; |
| 804 | |
| 805 | if (f->fmt.pix.bytesperline < calc_bpl) |
| 806 | f->fmt.pix.bytesperline = calc_bpl; |
| 807 | |
| 808 | if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */ |
| 809 | f->fmt.pix.bytesperline = calc_bpl; |
| 810 | |
| 811 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height; |
| 812 | DEB_D(("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n", f->fmt.pix.width, |
| 813 | f->fmt.pix.height, f->fmt.pix.bytesperline, f->fmt.pix.sizeimage)); |
| 814 | |
| 815 | return 0; |
| 816 | } |
| 817 | |
| 818 | |
| 819 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) |
| 820 | { |
| 821 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 822 | struct saa7146_vv *vv = dev->vv_data; |
| 823 | struct v4l2_window *win = &f->fmt.win; |
| 824 | enum v4l2_field field; |
| 825 | int maxw, maxh; |
| 826 | |
| 827 | DEB_EE(("dev:%p\n", dev)); |
| 828 | |
| 829 | if (NULL == vv->ov_fb.base) { |
| 830 | DEB_D(("no fb base set.\n")); |
| 831 | return -EINVAL; |
| 832 | } |
| 833 | if (NULL == vv->ov_fmt) { |
| 834 | DEB_D(("no fb fmt set.\n")); |
| 835 | return -EINVAL; |
| 836 | } |
| 837 | if (win->w.width < 48 || win->w.height < 32) { |
| 838 | DEB_D(("min width/height. (%d,%d)\n", win->w.width, win->w.height)); |
| 839 | return -EINVAL; |
| 840 | } |
| 841 | if (win->clipcount > 16) { |
| 842 | DEB_D(("clipcount too big.\n")); |
| 843 | return -EINVAL; |
| 844 | } |
| 845 | |
| 846 | field = win->field; |
| 847 | maxw = vv->standard->h_max_out; |
| 848 | maxh = vv->standard->v_max_out; |
| 849 | |
| 850 | if (V4L2_FIELD_ANY == field) { |
| 851 | field = (win->w.height > maxh / 2) |
| 852 | ? V4L2_FIELD_INTERLACED |
| 853 | : V4L2_FIELD_TOP; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 855 | switch (field) { |
| 856 | case V4L2_FIELD_TOP: |
| 857 | case V4L2_FIELD_BOTTOM: |
| 858 | case V4L2_FIELD_ALTERNATE: |
| 859 | maxh = maxh / 2; |
| 860 | break; |
| 861 | case V4L2_FIELD_INTERLACED: |
| 862 | break; |
| 863 | default: |
| 864 | DEB_D(("no known field mode '%d'.\n", field)); |
| 865 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 866 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 868 | win->field = field; |
| 869 | if (win->w.width > maxw) |
| 870 | win->w.width = maxw; |
| 871 | if (win->w.height > maxh) |
| 872 | win->w.height = maxh; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 874 | return 0; |
| 875 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 877 | static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) |
| 878 | { |
| 879 | struct saa7146_fh *fh = __fh; |
| 880 | struct saa7146_dev *dev = fh->dev; |
| 881 | struct saa7146_vv *vv = dev->vv_data; |
| 882 | int err; |
| 883 | |
| 884 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh)); |
| 885 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 886 | DEB_EE(("streaming capture is active\n")); |
| 887 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 889 | err = vidioc_try_fmt_vid_cap(file, fh, f); |
| 890 | if (0 != err) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | return err; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 892 | fh->video_fmt = f->fmt.pix; |
| 893 | DEB_EE(("set to pixelformat '%4.4s'\n", (char *)&fh->video_fmt.pixelformat)); |
| 894 | return 0; |
| 895 | } |
| 896 | |
| 897 | static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) |
| 898 | { |
| 899 | struct saa7146_fh *fh = __fh; |
| 900 | struct saa7146_dev *dev = fh->dev; |
| 901 | struct saa7146_vv *vv = dev->vv_data; |
| 902 | int err; |
| 903 | |
| 904 | DEB_EE(("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh)); |
| 905 | err = vidioc_try_fmt_vid_overlay(file, fh, f); |
| 906 | if (0 != err) |
| 907 | return err; |
| 908 | mutex_lock(&dev->lock); |
| 909 | fh->ov.win = f->fmt.win; |
| 910 | fh->ov.nclips = f->fmt.win.clipcount; |
| 911 | if (fh->ov.nclips > 16) |
| 912 | fh->ov.nclips = 16; |
| 913 | if (copy_from_user(fh->ov.clips, f->fmt.win.clips, |
| 914 | sizeof(struct v4l2_clip) * fh->ov.nclips)) { |
| 915 | mutex_unlock(&dev->lock); |
| 916 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 918 | |
| 919 | /* fh->ov.fh is used to indicate that we have valid overlay informations, too */ |
| 920 | fh->ov.fh = fh; |
| 921 | |
| 922 | mutex_unlock(&dev->lock); |
| 923 | |
| 924 | /* check if our current overlay is active */ |
| 925 | if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 926 | saa7146_stop_preview(fh); |
| 927 | saa7146_start_preview(fh); |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 928 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 929 | return 0; |
| 930 | } |
| 931 | |
| 932 | static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) |
| 933 | { |
| 934 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 935 | struct saa7146_vv *vv = dev->vv_data; |
| 936 | |
| 937 | *norm = vv->standard->id; |
| 938 | return 0; |
| 939 | } |
| 940 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | /* the saa7146 supfhrts (used in conjunction with the saa7111a for example) |
| 942 | PAL / NTSC / SECAM. if your hardware does not (or does more) |
| 943 | -- override this function in your extension */ |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 944 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | case VIDIOC_ENUMSTD: |
| 946 | { |
| 947 | struct v4l2_standard *e = arg; |
| 948 | if (e->index < 0 ) |
| 949 | return -EINVAL; |
| 950 | if( e->index < dev->ext_vv_data->num_stds ) { |
| 951 | DEB_EE(("VIDIOC_ENUMSTD: index:%d\n",e->index)); |
| 952 | v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name); |
| 953 | return 0; |
| 954 | } |
| 955 | return -EINVAL; |
| 956 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 957 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 959 | static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id *id) |
| 960 | { |
| 961 | struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; |
| 962 | struct saa7146_vv *vv = dev->vv_data; |
| 963 | int found = 0; |
| 964 | int err, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 966 | DEB_EE(("VIDIOC_S_STD\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 968 | if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) { |
| 969 | DEB_D(("cannot change video standard while streaming capture is active\n")); |
| 970 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 973 | if ((vv->video_status & STATUS_OVERLAY) != 0) { |
| 974 | vv->ov_suspend = vv->video_fh; |
| 975 | 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] | 976 | if (0 != err) { |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 977 | DEB_D(("suspending video failed. aborting\n")); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | return err; |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 979 | } |
| 980 | } |
Brandon Philips | 49ee718 | 2007-10-05 16:26:27 -0300 | [diff] [blame] | 981 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 982 | mutex_lock(&dev->lock); |
| 983 | |
| 984 | for (i = 0; i < dev->ext_vv_data->num_stds; i++) |
| 985 | if (*id & dev->ext_vv_data->stds[i].id) |
| 986 | break; |
| 987 | if (i != dev->ext_vv_data->num_stds) { |
| 988 | vv->standard = &dev->ext_vv_data->stds[i]; |
| 989 | if (NULL != dev->ext_vv_data->std_callback) |
| 990 | dev->ext_vv_data->std_callback(dev, vv->standard); |
| 991 | found = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 993 | |
| 994 | mutex_unlock(&dev->lock); |
| 995 | |
| 996 | if (vv->ov_suspend != NULL) { |
| 997 | saa7146_start_preview(vv->ov_suspend); |
| 998 | vv->ov_suspend = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | } |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 1000 | |
| 1001 | if (!found) { |
| 1002 | DEB_EE(("VIDIOC_S_STD: standard not found.\n")); |
| 1003 | return -EINVAL; |
| 1004 | } |
| 1005 | |
| 1006 | 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] | 1007 | return 0; |
| 1008 | } |
| 1009 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 1010 | static int vidioc_overlay(struct file *file, void *fh, unsigned int on) |
| 1011 | { |
| 1012 | int err; |
| 1013 | |
| 1014 | DEB_D(("VIDIOC_OVERLAY on:%d\n", on)); |
| 1015 | if (on) |
| 1016 | err = saa7146_start_preview(fh); |
| 1017 | else |
| 1018 | err = saa7146_stop_preview(fh); |
| 1019 | return err; |
| 1020 | } |
| 1021 | |
| 1022 | static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) |
| 1023 | { |
| 1024 | struct saa7146_fh *fh = __fh; |
| 1025 | |
| 1026 | if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1027 | return videobuf_reqbufs(&fh->video_q, b); |
| 1028 | if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1029 | return videobuf_reqbufs(&fh->vbi_q, b); |
| 1030 | return -EINVAL; |
| 1031 | } |
| 1032 | |
| 1033 | static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1034 | { |
| 1035 | struct saa7146_fh *fh = __fh; |
| 1036 | |
| 1037 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1038 | return videobuf_querybuf(&fh->video_q, buf); |
| 1039 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1040 | return videobuf_querybuf(&fh->vbi_q, buf); |
| 1041 | return -EINVAL; |
| 1042 | } |
| 1043 | |
| 1044 | static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1045 | { |
| 1046 | struct saa7146_fh *fh = __fh; |
| 1047 | |
| 1048 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1049 | return videobuf_qbuf(&fh->video_q, buf); |
| 1050 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1051 | return videobuf_qbuf(&fh->vbi_q, buf); |
| 1052 | return -EINVAL; |
| 1053 | } |
| 1054 | |
| 1055 | static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf) |
| 1056 | { |
| 1057 | struct saa7146_fh *fh = __fh; |
| 1058 | |
| 1059 | if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1060 | return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK); |
| 1061 | if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1062 | return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK); |
| 1063 | return -EINVAL; |
| 1064 | } |
| 1065 | |
| 1066 | static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type) |
| 1067 | { |
| 1068 | struct saa7146_fh *fh = __fh; |
| 1069 | int err; |
| 1070 | |
| 1071 | DEB_D(("VIDIOC_STREAMON, type:%d\n", type)); |
| 1072 | |
| 1073 | err = video_begin(fh); |
| 1074 | if (err) |
| 1075 | return err; |
| 1076 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1077 | return videobuf_streamon(&fh->video_q); |
| 1078 | if (type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1079 | return videobuf_streamon(&fh->vbi_q); |
| 1080 | return -EINVAL; |
| 1081 | } |
| 1082 | |
| 1083 | static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type) |
| 1084 | { |
| 1085 | struct saa7146_fh *fh = __fh; |
| 1086 | struct saa7146_dev *dev = fh->dev; |
| 1087 | struct saa7146_vv *vv = dev->vv_data; |
| 1088 | int err; |
| 1089 | |
| 1090 | DEB_D(("VIDIOC_STREAMOFF, type:%d\n", type)); |
| 1091 | |
| 1092 | /* ugly: we need to copy some checks from video_end(), |
| 1093 | because videobuf_streamoff() relies on the capture running. |
| 1094 | check and fix this */ |
| 1095 | if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) { |
| 1096 | DEB_S(("not capturing.\n")); |
| 1097 | return 0; |
| 1098 | } |
| 1099 | |
| 1100 | if (vv->video_fh != fh) { |
| 1101 | DEB_S(("capturing, but in another open.\n")); |
| 1102 | return -EBUSY; |
| 1103 | } |
| 1104 | |
| 1105 | err = -EINVAL; |
| 1106 | if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1107 | err = videobuf_streamoff(&fh->video_q); |
| 1108 | else if (type == V4L2_BUF_TYPE_VBI_CAPTURE) |
| 1109 | err = videobuf_streamoff(&fh->vbi_q); |
| 1110 | if (0 != err) { |
| 1111 | DEB_D(("warning: videobuf_streamoff() failed.\n")); |
| 1112 | video_end(fh, file); |
| 1113 | } else { |
| 1114 | err = video_end(fh, file); |
| 1115 | } |
| 1116 | return err; |
| 1117 | } |
| 1118 | |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 1119 | static int vidioc_g_chip_ident(struct file *file, void *__fh, |
| 1120 | struct v4l2_dbg_chip_ident *chip) |
| 1121 | { |
| 1122 | struct saa7146_fh *fh = __fh; |
| 1123 | struct saa7146_dev *dev = fh->dev; |
| 1124 | |
| 1125 | chip->ident = V4L2_IDENT_NONE; |
| 1126 | chip->revision = 0; |
| 1127 | if (v4l2_chip_match_host(&chip->match)) { |
| 1128 | chip->ident = V4L2_IDENT_SAA7146; |
| 1129 | return 0; |
| 1130 | } |
| 1131 | return v4l2_device_call_until_err(&dev->v4l2_dev, 0, |
| 1132 | core, g_chip_ident, chip); |
| 1133 | } |
| 1134 | |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 1135 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1136 | static int vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *mbuf) |
| 1137 | { |
| 1138 | struct saa7146_fh *fh = __fh; |
| 1139 | struct videobuf_queue *q = &fh->video_q; |
| 1140 | int err, i; |
| 1141 | |
| 1142 | /* fixme: number of capture buffers and sizes for v4l apps */ |
| 1143 | int gbuffers = 2; |
| 1144 | int gbufsize = 768 * 576 * 4; |
| 1145 | |
| 1146 | DEB_D(("VIDIOCGMBUF \n")); |
| 1147 | |
| 1148 | q = &fh->video_q; |
| 1149 | err = videobuf_mmap_setup(q, gbuffers, gbufsize, |
| 1150 | V4L2_MEMORY_MMAP); |
| 1151 | if (err < 0) |
| 1152 | return err; |
| 1153 | |
| 1154 | gbuffers = err; |
| 1155 | memset(mbuf, 0, sizeof(*mbuf)); |
| 1156 | mbuf->frames = gbuffers; |
| 1157 | mbuf->size = gbuffers * gbufsize; |
| 1158 | for (i = 0; i < gbuffers; i++) |
| 1159 | mbuf->offsets[i] = i * gbufsize; |
| 1160 | return 0; |
| 1161 | } |
| 1162 | #endif |
| 1163 | |
| 1164 | const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { |
| 1165 | .vidioc_querycap = vidioc_querycap, |
| 1166 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1167 | .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, |
| 1168 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1169 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1170 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
| 1171 | .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, |
| 1172 | .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, |
| 1173 | .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, |
| 1174 | .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
Hans Verkuil | 1b8dac1 | 2009-02-07 11:18:05 -0300 | [diff] [blame] | 1175 | .vidioc_g_chip_ident = vidioc_g_chip_ident, |
Hans Verkuil | b960074 | 2009-01-18 19:59:11 -0300 | [diff] [blame] | 1176 | |
| 1177 | .vidioc_overlay = vidioc_overlay, |
| 1178 | .vidioc_g_fbuf = vidioc_g_fbuf, |
| 1179 | .vidioc_s_fbuf = vidioc_s_fbuf, |
| 1180 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1181 | .vidioc_querybuf = vidioc_querybuf, |
| 1182 | .vidioc_qbuf = vidioc_qbuf, |
| 1183 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1184 | .vidioc_g_std = vidioc_g_std, |
| 1185 | .vidioc_s_std = vidioc_s_std, |
| 1186 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1187 | .vidioc_g_ctrl = vidioc_g_ctrl, |
| 1188 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1189 | .vidioc_streamon = vidioc_streamon, |
| 1190 | .vidioc_streamoff = vidioc_streamoff, |
| 1191 | .vidioc_g_parm = vidioc_g_parm, |
| 1192 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
| 1193 | .vidiocgmbuf = vidiocgmbuf, |
| 1194 | #endif |
| 1195 | }; |
| 1196 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | /*********************************************************************************/ |
| 1198 | /* buffer handling functions */ |
| 1199 | |
| 1200 | static int buffer_activate (struct saa7146_dev *dev, |
| 1201 | struct saa7146_buf *buf, |
| 1202 | struct saa7146_buf *next) |
| 1203 | { |
| 1204 | struct saa7146_vv *vv = dev->vv_data; |
| 1205 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1206 | buf->vb.state = VIDEOBUF_ACTIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | saa7146_set_capture(dev,buf,next); |
| 1208 | |
| 1209 | mod_timer(&vv->video_q.timeout, jiffies+BUFFER_TIMEOUT); |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | static int buffer_prepare(struct videobuf_queue *q, |
| 1214 | struct videobuf_buffer *vb, enum v4l2_field field) |
| 1215 | { |
| 1216 | struct file *file = q->priv_data; |
| 1217 | struct saa7146_fh *fh = file->private_data; |
| 1218 | struct saa7146_dev *dev = fh->dev; |
| 1219 | struct saa7146_vv *vv = dev->vv_data; |
| 1220 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1221 | int size,err = 0; |
| 1222 | |
| 1223 | DEB_CAP(("vbuf:%p\n",vb)); |
| 1224 | |
| 1225 | /* sanity checks */ |
| 1226 | if (fh->video_fmt.width < 48 || |
| 1227 | fh->video_fmt.height < 32 || |
| 1228 | fh->video_fmt.width > vv->standard->h_max_out || |
| 1229 | fh->video_fmt.height > vv->standard->v_max_out) { |
| 1230 | DEB_D(("w (%d) / h (%d) out of bounds.\n",fh->video_fmt.width,fh->video_fmt.height)); |
| 1231 | return -EINVAL; |
| 1232 | } |
| 1233 | |
| 1234 | size = fh->video_fmt.sizeimage; |
| 1235 | if (0 != buf->vb.baddr && buf->vb.bsize < size) { |
| 1236 | DEB_D(("size mismatch.\n")); |
| 1237 | return -EINVAL; |
| 1238 | } |
| 1239 | |
| 1240 | DEB_CAP(("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n", |
| 1241 | fh->video_fmt.width,fh->video_fmt.height,size,v4l2_field_names[fh->video_fmt.field])); |
| 1242 | if (buf->vb.width != fh->video_fmt.width || |
| 1243 | buf->vb.bytesperline != fh->video_fmt.bytesperline || |
| 1244 | buf->vb.height != fh->video_fmt.height || |
| 1245 | buf->vb.size != size || |
| 1246 | buf->vb.field != field || |
| 1247 | buf->vb.field != fh->video_fmt.field || |
| 1248 | buf->fmt != &fh->video_fmt) { |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1249 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | } |
| 1251 | |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1252 | if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1253 | struct saa7146_format *sfmt; |
| 1254 | |
| 1255 | buf->vb.bytesperline = fh->video_fmt.bytesperline; |
| 1256 | buf->vb.width = fh->video_fmt.width; |
| 1257 | buf->vb.height = fh->video_fmt.height; |
| 1258 | buf->vb.size = size; |
| 1259 | buf->vb.field = field; |
| 1260 | buf->fmt = &fh->video_fmt; |
| 1261 | buf->vb.field = fh->video_fmt.field; |
| 1262 | |
| 1263 | sfmt = format_by_fourcc(dev,buf->fmt->pixelformat); |
| 1264 | |
| 1265 | if( 0 != IS_PLANAR(sfmt->trans)) { |
| 1266 | saa7146_pgtable_free(dev->pci, &buf->pt[0]); |
| 1267 | saa7146_pgtable_free(dev->pci, &buf->pt[1]); |
| 1268 | saa7146_pgtable_free(dev->pci, &buf->pt[2]); |
| 1269 | |
| 1270 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
| 1271 | saa7146_pgtable_alloc(dev->pci, &buf->pt[1]); |
| 1272 | saa7146_pgtable_alloc(dev->pci, &buf->pt[2]); |
| 1273 | } else { |
| 1274 | saa7146_pgtable_free(dev->pci, &buf->pt[0]); |
| 1275 | saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); |
| 1276 | } |
| 1277 | |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1278 | err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | if (err) |
| 1280 | goto oops; |
| 1281 | err = saa7146_pgtable_build(dev,buf); |
| 1282 | if (err) |
| 1283 | goto oops; |
| 1284 | } |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1285 | buf->vb.state = VIDEOBUF_PREPARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | buf->activate = buffer_activate; |
| 1287 | |
| 1288 | return 0; |
| 1289 | |
| 1290 | oops: |
| 1291 | DEB_D(("error out.\n")); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1292 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1293 | |
| 1294 | return err; |
| 1295 | } |
| 1296 | |
| 1297 | static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) |
| 1298 | { |
| 1299 | struct file *file = q->priv_data; |
| 1300 | struct saa7146_fh *fh = file->private_data; |
| 1301 | |
| 1302 | if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS) |
| 1303 | *count = MAX_SAA7146_CAPTURE_BUFFERS; |
| 1304 | |
| 1305 | *size = fh->video_fmt.sizeimage; |
| 1306 | |
| 1307 | /* check if we exceed the "max_memory" parameter */ |
| 1308 | if( (*count * *size) > (max_memory*1048576) ) { |
| 1309 | *count = (max_memory*1048576) / *size; |
| 1310 | } |
| 1311 | |
| 1312 | DEB_CAP(("%d buffers, %d bytes each.\n",*count,*size)); |
| 1313 | |
| 1314 | return 0; |
| 1315 | } |
| 1316 | |
| 1317 | static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) |
| 1318 | { |
| 1319 | struct file *file = q->priv_data; |
| 1320 | struct saa7146_fh *fh = file->private_data; |
| 1321 | struct saa7146_dev *dev = fh->dev; |
| 1322 | struct saa7146_vv *vv = dev->vv_data; |
| 1323 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1324 | |
| 1325 | DEB_CAP(("vbuf:%p\n",vb)); |
| 1326 | saa7146_buffer_queue(fh->dev,&vv->video_q,buf); |
| 1327 | } |
| 1328 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1329 | static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) |
| 1330 | { |
| 1331 | struct file *file = q->priv_data; |
| 1332 | struct saa7146_fh *fh = file->private_data; |
| 1333 | struct saa7146_dev *dev = fh->dev; |
| 1334 | struct saa7146_buf *buf = (struct saa7146_buf *)vb; |
| 1335 | |
| 1336 | DEB_CAP(("vbuf:%p\n",vb)); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 1337 | saa7146_dma_free(dev,q,buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | } |
| 1339 | |
| 1340 | static struct videobuf_queue_ops video_qops = { |
| 1341 | .buf_setup = buffer_setup, |
| 1342 | .buf_prepare = buffer_prepare, |
| 1343 | .buf_queue = buffer_queue, |
| 1344 | .buf_release = buffer_release, |
| 1345 | }; |
| 1346 | |
| 1347 | /********************************************************************************/ |
| 1348 | /* file operations */ |
| 1349 | |
| 1350 | static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv) |
| 1351 | { |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 1352 | INIT_LIST_HEAD(&vv->video_q.queue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1353 | |
| 1354 | init_timer(&vv->video_q.timeout); |
| 1355 | vv->video_q.timeout.function = saa7146_buffer_timeout; |
| 1356 | vv->video_q.timeout.data = (unsigned long)(&vv->video_q); |
| 1357 | vv->video_q.dev = dev; |
| 1358 | |
| 1359 | /* set some default values */ |
| 1360 | vv->standard = &dev->ext_vv_data->stds[0]; |
| 1361 | |
| 1362 | /* FIXME: what's this? */ |
| 1363 | vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A; |
| 1364 | vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A; |
| 1365 | } |
| 1366 | |
| 1367 | |
| 1368 | static int video_open(struct saa7146_dev *dev, struct file *file) |
| 1369 | { |
| 1370 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; |
| 1371 | struct saa7146_format *sfmt; |
| 1372 | |
| 1373 | fh->video_fmt.width = 384; |
| 1374 | fh->video_fmt.height = 288; |
| 1375 | fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24; |
| 1376 | fh->video_fmt.bytesperline = 0; |
| 1377 | fh->video_fmt.field = V4L2_FIELD_ANY; |
| 1378 | sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); |
| 1379 | fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8; |
| 1380 | |
Guennadi Liakhovetski | 0705135 | 2008-04-22 14:42:13 -0300 | [diff] [blame] | 1381 | videobuf_queue_sg_init(&fh->video_q, &video_qops, |
| 1382 | &dev->pci->dev, &dev->slock, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 1384 | V4L2_FIELD_INTERLACED, |
| 1385 | sizeof(struct saa7146_buf), |
| 1386 | file); |
| 1387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1388 | return 0; |
| 1389 | } |
| 1390 | |
| 1391 | |
| 1392 | static void video_close(struct saa7146_dev *dev, struct file *file) |
| 1393 | { |
| 1394 | struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; |
| 1395 | struct saa7146_vv *vv = dev->vv_data; |
Hartmut Birr | 2970c49 | 2007-04-22 06:57:26 -0300 | [diff] [blame] | 1396 | struct videobuf_queue *q = &fh->video_q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | int err; |
| 1398 | |
| 1399 | if (IS_CAPTURE_ACTIVE(fh) != 0) { |
| 1400 | err = video_end(fh, file); |
| 1401 | } else if (IS_OVERLAY_ACTIVE(fh) != 0) { |
| 1402 | err = saa7146_stop_preview(fh); |
| 1403 | } |
| 1404 | |
Brandon Philips | 19bc513 | 2007-11-13 20:05:38 -0300 | [diff] [blame] | 1405 | videobuf_stop(q); |
Hartmut Birr | 2970c49 | 2007-04-22 06:57:26 -0300 | [diff] [blame] | 1406 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | /* hmm, why is this function declared void? */ |
| 1408 | /* return err */ |
| 1409 | } |
| 1410 | |
| 1411 | |
| 1412 | static void video_irq_done(struct saa7146_dev *dev, unsigned long st) |
| 1413 | { |
| 1414 | struct saa7146_vv *vv = dev->vv_data; |
| 1415 | struct saa7146_dmaqueue *q = &vv->video_q; |
| 1416 | |
| 1417 | spin_lock(&dev->slock); |
| 1418 | DEB_CAP(("called.\n")); |
| 1419 | |
| 1420 | /* only finish the buffer if we have one... */ |
| 1421 | if( NULL != q->curr ) { |
Brandon Philips | 0fc0686 | 2007-11-06 20:02:36 -0300 | [diff] [blame] | 1422 | saa7146_buffer_finish(dev,q,VIDEOBUF_DONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | } |
| 1424 | saa7146_buffer_next(dev,q,0); |
| 1425 | |
| 1426 | spin_unlock(&dev->slock); |
| 1427 | } |
| 1428 | |
| 1429 | static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos) |
| 1430 | { |
| 1431 | struct saa7146_fh *fh = file->private_data; |
| 1432 | struct saa7146_dev *dev = fh->dev; |
| 1433 | struct saa7146_vv *vv = dev->vv_data; |
| 1434 | ssize_t ret = 0; |
| 1435 | |
| 1436 | DEB_EE(("called.\n")); |
| 1437 | |
| 1438 | if ((vv->video_status & STATUS_CAPTURE) != 0) { |
| 1439 | /* fixme: should we allow read() captures while streaming capture? */ |
| 1440 | if (vv->video_fh == fh) { |
| 1441 | DEB_S(("already capturing.\n")); |
| 1442 | return -EBUSY; |
| 1443 | } |
| 1444 | DEB_S(("already capturing in another open.\n")); |
| 1445 | return -EBUSY; |
| 1446 | } |
| 1447 | |
| 1448 | ret = video_begin(fh); |
| 1449 | if( 0 != ret) { |
| 1450 | goto out; |
| 1451 | } |
| 1452 | |
| 1453 | ret = videobuf_read_one(&fh->video_q , data, count, ppos, |
| 1454 | file->f_flags & O_NONBLOCK); |
| 1455 | if (ret != 0) { |
| 1456 | video_end(fh, file); |
| 1457 | } else { |
| 1458 | ret = video_end(fh, file); |
| 1459 | } |
| 1460 | out: |
| 1461 | /* restart overlay if it was active before */ |
| 1462 | if (vv->ov_suspend != NULL) { |
| 1463 | saa7146_start_preview(vv->ov_suspend); |
| 1464 | vv->ov_suspend = NULL; |
| 1465 | } |
| 1466 | |
| 1467 | return ret; |
| 1468 | } |
| 1469 | |
| 1470 | struct saa7146_use_ops saa7146_video_uops = { |
| 1471 | .init = video_init, |
| 1472 | .open = video_open, |
| 1473 | .release = video_close, |
| 1474 | .irq_done = video_irq_done, |
| 1475 | .read = video_read, |
| 1476 | }; |