Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 1 | /* Linux driver for Philips webcam |
| 2 | USB and Video4Linux interface part. |
| 3 | (C) 1999-2004 Nemosoft Unv. |
| 4 | (C) 2004-2006 Luc Saillard (luc@saillard.org) |
| 5 | |
| 6 | NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx |
| 7 | driver and thus may have bugs that are not present in the original version. |
| 8 | Please send bug reports and support requests to <luc@saillard.org>. |
| 9 | The decompression routines have been implemented by reverse-engineering the |
| 10 | Nemosoft binary pwcx module. Caveat emptor. |
| 11 | |
| 12 | This program is free software; you can redistribute it and/or modify |
| 13 | it under the terms of the GNU General Public License as published by |
| 14 | the Free Software Foundation; either version 2 of the License, or |
| 15 | (at your option) any later version. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU General Public License |
| 23 | along with this program; if not, write to the Free Software |
| 24 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | |
| 26 | */ |
| 27 | |
| 28 | #include <linux/errno.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/mm.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/poll.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/vmalloc.h> |
| 35 | #include <asm/io.h> |
| 36 | |
| 37 | #include "pwc.h" |
| 38 | |
| 39 | static struct v4l2_queryctrl pwc_controls[] = { |
| 40 | { |
| 41 | .id = V4L2_CID_BRIGHTNESS, |
| 42 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 43 | .name = "Brightness", |
| 44 | .minimum = 0, |
| 45 | .maximum = 128, |
| 46 | .step = 1, |
| 47 | .default_value = 64, |
| 48 | }, |
| 49 | { |
| 50 | .id = V4L2_CID_CONTRAST, |
| 51 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 52 | .name = "Contrast", |
| 53 | .minimum = 0, |
| 54 | .maximum = 64, |
| 55 | .step = 1, |
| 56 | .default_value = 0, |
| 57 | }, |
| 58 | { |
| 59 | .id = V4L2_CID_SATURATION, |
| 60 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 61 | .name = "Saturation", |
| 62 | .minimum = -100, |
| 63 | .maximum = 100, |
| 64 | .step = 1, |
| 65 | .default_value = 0, |
| 66 | }, |
| 67 | { |
| 68 | .id = V4L2_CID_GAMMA, |
| 69 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 70 | .name = "Gamma", |
| 71 | .minimum = 0, |
| 72 | .maximum = 32, |
| 73 | .step = 1, |
| 74 | .default_value = 0, |
| 75 | }, |
| 76 | { |
| 77 | .id = V4L2_CID_RED_BALANCE, |
| 78 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 79 | .name = "Red Gain", |
| 80 | .minimum = 0, |
| 81 | .maximum = 256, |
| 82 | .step = 1, |
| 83 | .default_value = 0, |
| 84 | }, |
| 85 | { |
| 86 | .id = V4L2_CID_BLUE_BALANCE, |
| 87 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 88 | .name = "Blue Gain", |
| 89 | .minimum = 0, |
| 90 | .maximum = 256, |
| 91 | .step = 1, |
| 92 | .default_value = 0, |
| 93 | }, |
| 94 | { |
| 95 | .id = V4L2_CID_AUTO_WHITE_BALANCE, |
| 96 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 97 | .name = "Auto White Balance", |
| 98 | .minimum = 0, |
| 99 | .maximum = 1, |
| 100 | .step = 1, |
| 101 | .default_value = 0, |
| 102 | }, |
| 103 | { |
| 104 | .id = V4L2_CID_EXPOSURE, |
| 105 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 106 | .name = "Shutter Speed (Exposure)", |
| 107 | .minimum = 0, |
| 108 | .maximum = 256, |
| 109 | .step = 1, |
| 110 | .default_value = 200, |
| 111 | }, |
| 112 | { |
| 113 | .id = V4L2_CID_AUTOGAIN, |
| 114 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 115 | .name = "Auto Gain Enabled", |
| 116 | .minimum = 0, |
| 117 | .maximum = 1, |
| 118 | .step = 1, |
| 119 | .default_value = 1, |
| 120 | }, |
| 121 | { |
| 122 | .id = V4L2_CID_GAIN, |
| 123 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 124 | .name = "Gain Level", |
| 125 | .minimum = 0, |
| 126 | .maximum = 256, |
| 127 | .step = 1, |
| 128 | .default_value = 0, |
| 129 | }, |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 130 | { |
| 131 | .id = V4L2_CID_PRIVATE_SAVE_USER, |
| 132 | .type = V4L2_CTRL_TYPE_BUTTON, |
| 133 | .name = "Save User Settings", |
| 134 | .minimum = 0, |
| 135 | .maximum = 0, |
| 136 | .step = 0, |
| 137 | .default_value = 0, |
| 138 | }, |
| 139 | { |
| 140 | .id = V4L2_CID_PRIVATE_RESTORE_USER, |
| 141 | .type = V4L2_CTRL_TYPE_BUTTON, |
| 142 | .name = "Restore User Settings", |
| 143 | .minimum = 0, |
| 144 | .maximum = 0, |
| 145 | .step = 0, |
| 146 | .default_value = 0, |
| 147 | }, |
| 148 | { |
| 149 | .id = V4L2_CID_PRIVATE_RESTORE_FACTORY, |
| 150 | .type = V4L2_CTRL_TYPE_BUTTON, |
| 151 | .name = "Restore Factory Settings", |
| 152 | .minimum = 0, |
| 153 | .maximum = 0, |
| 154 | .step = 0, |
| 155 | .default_value = 0, |
| 156 | }, |
| 157 | { |
| 158 | .id = V4L2_CID_PRIVATE_COLOUR_MODE, |
| 159 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 160 | .name = "Colour mode", |
| 161 | .minimum = 0, |
| 162 | .maximum = 1, |
| 163 | .step = 1, |
| 164 | .default_value = 0, |
| 165 | }, |
| 166 | { |
| 167 | .id = V4L2_CID_PRIVATE_AUTOCONTOUR, |
| 168 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 169 | .name = "Auto contour", |
| 170 | .minimum = 0, |
| 171 | .maximum = 1, |
| 172 | .step = 1, |
| 173 | .default_value = 0, |
| 174 | }, |
| 175 | { |
| 176 | .id = V4L2_CID_PRIVATE_CONTOUR, |
| 177 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 178 | .name = "Contour", |
| 179 | .minimum = 0, |
| 180 | .maximum = 63, |
| 181 | .step = 1, |
| 182 | .default_value = 0, |
| 183 | }, |
| 184 | { |
| 185 | .id = V4L2_CID_PRIVATE_BACKLIGHT, |
| 186 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 187 | .name = "Backlight compensation", |
| 188 | .minimum = 0, |
| 189 | .maximum = 1, |
| 190 | .step = 1, |
| 191 | .default_value = 0, |
| 192 | }, |
| 193 | { |
| 194 | .id = V4L2_CID_PRIVATE_FLICKERLESS, |
| 195 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 196 | .name = "Flickerless", |
| 197 | .minimum = 0, |
| 198 | .maximum = 1, |
| 199 | .step = 1, |
| 200 | .default_value = 0, |
| 201 | }, |
| 202 | { |
| 203 | .id = V4L2_CID_PRIVATE_NOISE_REDUCTION, |
| 204 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 205 | .name = "Noise reduction", |
| 206 | .minimum = 0, |
| 207 | .maximum = 3, |
| 208 | .step = 1, |
| 209 | .default_value = 0, |
| 210 | }, |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 211 | }; |
| 212 | |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 213 | |
| 214 | static void pwc_vidioc_fill_fmt(const struct pwc_device *pdev, struct v4l2_format *f) |
| 215 | { |
| 216 | memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); |
| 217 | f->fmt.pix.width = pdev->view.x; |
| 218 | f->fmt.pix.height = pdev->view.y; |
| 219 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 220 | if (pdev->vpalette == VIDEO_PALETTE_YUV420P) { |
| 221 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; |
| 222 | f->fmt.pix.bytesperline = (f->fmt.pix.width * 3)/2; |
| 223 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
| 224 | } else { |
| 225 | /* vbandlength contains 4 lines ... */ |
| 226 | f->fmt.pix.bytesperline = pdev->vbandlength/4; |
| 227 | f->fmt.pix.sizeimage = pdev->frame_size + sizeof(struct pwc_raw_frame); |
| 228 | if (DEVICE_USE_CODEC1(pdev->type)) |
| 229 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC1; |
| 230 | else |
| 231 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_PWC2; |
| 232 | } |
| 233 | PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() " |
| 234 | "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n", |
| 235 | f->fmt.pix.width, |
| 236 | f->fmt.pix.height, |
| 237 | f->fmt.pix.bytesperline, |
| 238 | f->fmt.pix.sizeimage, |
| 239 | (f->fmt.pix.pixelformat)&255, |
| 240 | (f->fmt.pix.pixelformat>>8)&255, |
| 241 | (f->fmt.pix.pixelformat>>16)&255, |
| 242 | (f->fmt.pix.pixelformat>>24)&255); |
| 243 | } |
| 244 | |
| 245 | /* ioctl(VIDIOC_TRY_FMT) */ |
| 246 | static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f) |
| 247 | { |
| 248 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 249 | PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n"); |
| 250 | return -EINVAL; |
| 251 | } |
| 252 | |
| 253 | switch (f->fmt.pix.pixelformat) { |
| 254 | case V4L2_PIX_FMT_YUV420: |
| 255 | break; |
| 256 | case V4L2_PIX_FMT_PWC1: |
| 257 | if (DEVICE_USE_CODEC23(pdev->type)) { |
| 258 | PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n"); |
| 259 | return -EINVAL; |
| 260 | } |
| 261 | break; |
| 262 | case V4L2_PIX_FMT_PWC2: |
| 263 | if (DEVICE_USE_CODEC1(pdev->type)) { |
| 264 | PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n"); |
| 265 | return -EINVAL; |
| 266 | } |
| 267 | break; |
| 268 | default: |
| 269 | PWC_DEBUG_IOCTL("Unsupported pixel format\n"); |
| 270 | return -EINVAL; |
| 271 | |
| 272 | } |
| 273 | |
| 274 | if (f->fmt.pix.width > pdev->view_max.x) |
| 275 | f->fmt.pix.width = pdev->view_max.x; |
| 276 | else if (f->fmt.pix.width < pdev->view_min.x) |
| 277 | f->fmt.pix.width = pdev->view_min.x; |
| 278 | |
| 279 | if (f->fmt.pix.height > pdev->view_max.y) |
| 280 | f->fmt.pix.height = pdev->view_max.y; |
| 281 | else if (f->fmt.pix.height < pdev->view_min.y) |
| 282 | f->fmt.pix.height = pdev->view_min.y; |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | /* ioctl(VIDIOC_SET_FMT) */ |
| 288 | static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f) |
| 289 | { |
| 290 | int ret, fps, snapshot, compression, pixelformat; |
| 291 | |
| 292 | ret = pwc_vidioc_try_fmt(pdev, f); |
| 293 | if (ret<0) |
| 294 | return ret; |
| 295 | |
| 296 | pixelformat = f->fmt.pix.pixelformat; |
| 297 | compression = pdev->vcompression; |
| 298 | snapshot = 0; |
| 299 | fps = pdev->vframes; |
| 300 | if (f->fmt.pix.priv) { |
| 301 | compression = (f->fmt.pix.priv & PWC_QLT_MASK) >> PWC_QLT_SHIFT; |
| 302 | snapshot = !!(f->fmt.pix.priv & PWC_FPS_SNAPSHOT); |
| 303 | fps = (f->fmt.pix.priv & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT; |
| 304 | if (fps == 0) |
| 305 | fps = pdev->vframes; |
| 306 | } |
| 307 | |
| 308 | if (pixelformat == V4L2_PIX_FMT_YUV420) |
| 309 | pdev->vpalette = VIDEO_PALETTE_YUV420P; |
| 310 | else |
| 311 | pdev->vpalette = VIDEO_PALETTE_RAW; |
| 312 | |
| 313 | PWC_DEBUG_IOCTL("Try to change format to: width=%d height=%d fps=%d " |
| 314 | "compression=%d snapshot=%d format=%c%c%c%c\n", |
| 315 | f->fmt.pix.width, f->fmt.pix.height, fps, |
| 316 | compression, snapshot, |
| 317 | (pixelformat)&255, |
| 318 | (pixelformat>>8)&255, |
| 319 | (pixelformat>>16)&255, |
| 320 | (pixelformat>>24)&255); |
| 321 | |
| 322 | ret = pwc_try_video_mode(pdev, |
| 323 | f->fmt.pix.width, |
| 324 | f->fmt.pix.height, |
| 325 | fps, |
| 326 | compression, |
| 327 | snapshot); |
| 328 | |
| 329 | PWC_DEBUG_IOCTL("pwc_try_video_mode(), return=%d\n", ret); |
| 330 | |
| 331 | if (ret) |
| 332 | return ret; |
| 333 | |
| 334 | pwc_vidioc_fill_fmt(pdev, f); |
| 335 | |
| 336 | return 0; |
| 337 | |
| 338 | } |
| 339 | |
| 340 | int pwc_video_do_ioctl(struct inode *inode, struct file *file, |
| 341 | unsigned int cmd, void *arg) |
| 342 | { |
| 343 | struct video_device *vdev = video_devdata(file); |
| 344 | struct pwc_device *pdev; |
| 345 | DECLARE_WAITQUEUE(wait, current); |
| 346 | |
| 347 | if (vdev == NULL) |
| 348 | return -EFAULT; |
| 349 | pdev = vdev->priv; |
| 350 | if (pdev == NULL) |
| 351 | return -EFAULT; |
| 352 | |
Trent Piepho | 05ad390 | 2007-01-30 23:26:01 -0300 | [diff] [blame] | 353 | #ifdef CONFIG_USB_PWC_DEBUG |
Mauro Carvalho Chehab | 5e28e00 | 2008-04-13 15:06:24 -0300 | [diff] [blame] | 354 | if (PWC_DEBUG_LEVEL_IOCTL & pwc_trace) { |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 355 | v4l_printk_ioctl(cmd); |
Mauro Carvalho Chehab | 5e28e00 | 2008-04-13 15:06:24 -0300 | [diff] [blame] | 356 | printk("\n"); |
| 357 | } |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 358 | #endif |
| 359 | |
| 360 | |
| 361 | switch (cmd) { |
| 362 | /* Query cabapilities */ |
| 363 | case VIDIOCGCAP: |
| 364 | { |
| 365 | struct video_capability *caps = arg; |
| 366 | |
| 367 | strcpy(caps->name, vdev->name); |
| 368 | caps->type = VID_TYPE_CAPTURE; |
| 369 | caps->channels = 1; |
| 370 | caps->audios = 1; |
| 371 | caps->minwidth = pdev->view_min.x; |
| 372 | caps->minheight = pdev->view_min.y; |
| 373 | caps->maxwidth = pdev->view_max.x; |
| 374 | caps->maxheight = pdev->view_max.y; |
| 375 | break; |
| 376 | } |
| 377 | |
| 378 | /* Channel functions (simulate 1 channel) */ |
| 379 | case VIDIOCGCHAN: |
| 380 | { |
| 381 | struct video_channel *v = arg; |
| 382 | |
| 383 | if (v->channel != 0) |
| 384 | return -EINVAL; |
| 385 | v->flags = 0; |
| 386 | v->tuners = 0; |
| 387 | v->type = VIDEO_TYPE_CAMERA; |
| 388 | strcpy(v->name, "Webcam"); |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | case VIDIOCSCHAN: |
| 393 | { |
| 394 | /* The spec says the argument is an integer, but |
| 395 | the bttv driver uses a video_channel arg, which |
| 396 | makes sense becasue it also has the norm flag. |
| 397 | */ |
| 398 | struct video_channel *v = arg; |
| 399 | if (v->channel != 0) |
| 400 | return -EINVAL; |
| 401 | return 0; |
| 402 | } |
| 403 | |
| 404 | |
| 405 | /* Picture functions; contrast etc. */ |
| 406 | case VIDIOCGPICT: |
| 407 | { |
| 408 | struct video_picture *p = arg; |
| 409 | int val; |
| 410 | |
| 411 | val = pwc_get_brightness(pdev); |
| 412 | if (val >= 0) |
| 413 | p->brightness = (val<<9); |
| 414 | else |
| 415 | p->brightness = 0xffff; |
| 416 | val = pwc_get_contrast(pdev); |
| 417 | if (val >= 0) |
| 418 | p->contrast = (val<<10); |
| 419 | else |
| 420 | p->contrast = 0xffff; |
| 421 | /* Gamma, Whiteness, what's the difference? :) */ |
| 422 | val = pwc_get_gamma(pdev); |
| 423 | if (val >= 0) |
| 424 | p->whiteness = (val<<11); |
| 425 | else |
| 426 | p->whiteness = 0xffff; |
| 427 | if (pwc_get_saturation(pdev, &val)<0) |
| 428 | p->colour = 0xffff; |
| 429 | else |
| 430 | p->colour = 32768 + val * 327; |
| 431 | p->depth = 24; |
| 432 | p->palette = pdev->vpalette; |
| 433 | p->hue = 0xFFFF; /* N/A */ |
| 434 | break; |
| 435 | } |
| 436 | |
| 437 | case VIDIOCSPICT: |
| 438 | { |
| 439 | struct video_picture *p = arg; |
| 440 | /* |
| 441 | * FIXME: Suppose we are mid read |
| 442 | ANSWER: No problem: the firmware of the camera |
| 443 | can handle brightness/contrast/etc |
| 444 | changes at _any_ time, and the palette |
| 445 | is used exactly once in the uncompress |
| 446 | routine. |
| 447 | */ |
| 448 | pwc_set_brightness(pdev, p->brightness); |
| 449 | pwc_set_contrast(pdev, p->contrast); |
| 450 | pwc_set_gamma(pdev, p->whiteness); |
| 451 | pwc_set_saturation(pdev, (p->colour-32768)/327); |
| 452 | if (p->palette && p->palette != pdev->vpalette) { |
| 453 | switch (p->palette) { |
| 454 | case VIDEO_PALETTE_YUV420P: |
| 455 | case VIDEO_PALETTE_RAW: |
| 456 | pdev->vpalette = p->palette; |
| 457 | return pwc_try_video_mode(pdev, pdev->image.x, pdev->image.y, pdev->vframes, pdev->vcompression, pdev->vsnapshot); |
| 458 | break; |
| 459 | default: |
| 460 | return -EINVAL; |
| 461 | break; |
| 462 | } |
| 463 | } |
| 464 | break; |
| 465 | } |
| 466 | |
| 467 | /* Window/size parameters */ |
| 468 | case VIDIOCGWIN: |
| 469 | { |
| 470 | struct video_window *vw = arg; |
| 471 | |
| 472 | vw->x = 0; |
| 473 | vw->y = 0; |
| 474 | vw->width = pdev->view.x; |
| 475 | vw->height = pdev->view.y; |
| 476 | vw->chromakey = 0; |
| 477 | vw->flags = (pdev->vframes << PWC_FPS_SHIFT) | |
| 478 | (pdev->vsnapshot ? PWC_FPS_SNAPSHOT : 0); |
| 479 | break; |
| 480 | } |
| 481 | |
| 482 | case VIDIOCSWIN: |
| 483 | { |
| 484 | struct video_window *vw = arg; |
| 485 | int fps, snapshot, ret; |
| 486 | |
| 487 | fps = (vw->flags & PWC_FPS_FRMASK) >> PWC_FPS_SHIFT; |
| 488 | snapshot = vw->flags & PWC_FPS_SNAPSHOT; |
| 489 | if (fps == 0) |
| 490 | fps = pdev->vframes; |
| 491 | if (pdev->view.x == vw->width && pdev->view.y && fps == pdev->vframes && snapshot == pdev->vsnapshot) |
| 492 | return 0; |
| 493 | ret = pwc_try_video_mode(pdev, vw->width, vw->height, fps, pdev->vcompression, snapshot); |
| 494 | if (ret) |
| 495 | return ret; |
| 496 | break; |
| 497 | } |
| 498 | |
| 499 | /* We don't have overlay support (yet) */ |
| 500 | case VIDIOCGFBUF: |
| 501 | { |
| 502 | struct video_buffer *vb = arg; |
| 503 | |
| 504 | memset(vb,0,sizeof(*vb)); |
| 505 | break; |
| 506 | } |
| 507 | |
| 508 | /* mmap() functions */ |
| 509 | case VIDIOCGMBUF: |
| 510 | { |
| 511 | /* Tell the user program how much memory is needed for a mmap() */ |
| 512 | struct video_mbuf *vm = arg; |
| 513 | int i; |
| 514 | |
| 515 | memset(vm, 0, sizeof(*vm)); |
| 516 | vm->size = pwc_mbufs * pdev->len_per_image; |
| 517 | vm->frames = pwc_mbufs; /* double buffering should be enough for most applications */ |
| 518 | for (i = 0; i < pwc_mbufs; i++) |
| 519 | vm->offsets[i] = i * pdev->len_per_image; |
| 520 | break; |
| 521 | } |
| 522 | |
| 523 | case VIDIOCMCAPTURE: |
| 524 | { |
| 525 | /* Start capture into a given image buffer (called 'frame' in video_mmap structure) */ |
| 526 | struct video_mmap *vm = arg; |
| 527 | |
| 528 | PWC_DEBUG_READ("VIDIOCMCAPTURE: %dx%d, frame %d, format %d\n", vm->width, vm->height, vm->frame, vm->format); |
| 529 | if (vm->frame < 0 || vm->frame >= pwc_mbufs) |
| 530 | return -EINVAL; |
| 531 | |
| 532 | /* xawtv is nasty. It probes the available palettes |
| 533 | by setting a very small image size and trying |
| 534 | various palettes... The driver doesn't support |
| 535 | such small images, so I'm working around it. |
| 536 | */ |
| 537 | if (vm->format) |
| 538 | { |
| 539 | switch (vm->format) |
| 540 | { |
| 541 | case VIDEO_PALETTE_YUV420P: |
| 542 | case VIDEO_PALETTE_RAW: |
| 543 | break; |
| 544 | default: |
| 545 | return -EINVAL; |
| 546 | break; |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | if ((vm->width != pdev->view.x || vm->height != pdev->view.y) && |
| 551 | (vm->width >= pdev->view_min.x && vm->height >= pdev->view_min.y)) { |
| 552 | int ret; |
| 553 | |
| 554 | PWC_DEBUG_OPEN("VIDIOCMCAPTURE: changing size to please xawtv :-(.\n"); |
| 555 | ret = pwc_try_video_mode(pdev, vm->width, vm->height, pdev->vframes, pdev->vcompression, pdev->vsnapshot); |
| 556 | if (ret) |
| 557 | return ret; |
| 558 | } /* ... size mismatch */ |
| 559 | |
| 560 | /* FIXME: should we lock here? */ |
| 561 | if (pdev->image_used[vm->frame]) |
| 562 | return -EBUSY; /* buffer wasn't available. Bummer */ |
| 563 | pdev->image_used[vm->frame] = 1; |
| 564 | |
| 565 | /* Okay, we're done here. In the SYNC call we wait until a |
| 566 | frame comes available, then expand image into the given |
| 567 | buffer. |
| 568 | In contrast to the CPiA cam the Philips cams deliver a |
| 569 | constant stream, almost like a grabber card. Also, |
| 570 | we have separate buffers for the rawdata and the image, |
| 571 | meaning we can nearly always expand into the requested buffer. |
| 572 | */ |
| 573 | PWC_DEBUG_READ("VIDIOCMCAPTURE done.\n"); |
| 574 | break; |
| 575 | } |
| 576 | |
| 577 | case VIDIOCSYNC: |
| 578 | { |
| 579 | /* The doc says: "Whenever a buffer is used it should |
| 580 | call VIDIOCSYNC to free this frame up and continue." |
| 581 | |
| 582 | The only odd thing about this whole procedure is |
| 583 | that MCAPTURE flags the buffer as "in use", and |
| 584 | SYNC immediately unmarks it, while it isn't |
| 585 | after SYNC that you know that the buffer actually |
| 586 | got filled! So you better not start a CAPTURE in |
| 587 | the same frame immediately (use double buffering). |
| 588 | This is not a problem for this cam, since it has |
| 589 | extra intermediate buffers, but a hardware |
| 590 | grabber card will then overwrite the buffer |
| 591 | you're working on. |
| 592 | */ |
| 593 | int *mbuf = arg; |
| 594 | int ret; |
| 595 | |
| 596 | PWC_DEBUG_READ("VIDIOCSYNC called (%d).\n", *mbuf); |
| 597 | |
| 598 | /* bounds check */ |
| 599 | if (*mbuf < 0 || *mbuf >= pwc_mbufs) |
| 600 | return -EINVAL; |
| 601 | /* check if this buffer was requested anyway */ |
| 602 | if (pdev->image_used[*mbuf] == 0) |
| 603 | return -EINVAL; |
| 604 | |
| 605 | /* Add ourselves to the frame wait-queue. |
| 606 | |
| 607 | FIXME: needs auditing for safety. |
| 608 | QUESTION: In what respect? I think that using the |
| 609 | frameq is safe now. |
| 610 | */ |
| 611 | add_wait_queue(&pdev->frameq, &wait); |
| 612 | while (pdev->full_frames == NULL) { |
| 613 | /* Check for unplugged/etc. here */ |
| 614 | if (pdev->error_status) { |
| 615 | remove_wait_queue(&pdev->frameq, &wait); |
| 616 | set_current_state(TASK_RUNNING); |
| 617 | return -pdev->error_status; |
| 618 | } |
| 619 | |
| 620 | if (signal_pending(current)) { |
| 621 | remove_wait_queue(&pdev->frameq, &wait); |
| 622 | set_current_state(TASK_RUNNING); |
| 623 | return -ERESTARTSYS; |
| 624 | } |
| 625 | schedule(); |
| 626 | set_current_state(TASK_INTERRUPTIBLE); |
| 627 | } |
| 628 | remove_wait_queue(&pdev->frameq, &wait); |
| 629 | set_current_state(TASK_RUNNING); |
| 630 | |
| 631 | /* The frame is ready. Expand in the image buffer |
| 632 | requested by the user. I don't care if you |
| 633 | mmap() 5 buffers and request data in this order: |
| 634 | buffer 4 2 3 0 1 2 3 0 4 3 1 . . . |
| 635 | Grabber hardware may not be so forgiving. |
| 636 | */ |
| 637 | PWC_DEBUG_READ("VIDIOCSYNC: frame ready.\n"); |
| 638 | pdev->fill_image = *mbuf; /* tell in which buffer we want the image to be expanded */ |
| 639 | /* Decompress, etc */ |
| 640 | ret = pwc_handle_frame(pdev); |
| 641 | pdev->image_used[*mbuf] = 0; |
| 642 | if (ret) |
| 643 | return -EFAULT; |
| 644 | break; |
| 645 | } |
| 646 | |
| 647 | case VIDIOCGAUDIO: |
| 648 | { |
| 649 | struct video_audio *v = arg; |
| 650 | |
| 651 | strcpy(v->name, "Microphone"); |
| 652 | v->audio = -1; /* unknown audio minor */ |
| 653 | v->flags = 0; |
| 654 | v->mode = VIDEO_SOUND_MONO; |
| 655 | v->volume = 0; |
| 656 | v->bass = 0; |
| 657 | v->treble = 0; |
| 658 | v->balance = 0x8000; |
| 659 | v->step = 1; |
| 660 | break; |
| 661 | } |
| 662 | |
| 663 | case VIDIOCSAUDIO: |
| 664 | { |
| 665 | /* Dummy: nothing can be set */ |
| 666 | break; |
| 667 | } |
| 668 | |
| 669 | case VIDIOCGUNIT: |
| 670 | { |
| 671 | struct video_unit *vu = arg; |
| 672 | |
| 673 | vu->video = pdev->vdev->minor & 0x3F; |
| 674 | vu->audio = -1; /* not known yet */ |
| 675 | vu->vbi = -1; |
| 676 | vu->radio = -1; |
| 677 | vu->teletext = -1; |
| 678 | break; |
| 679 | } |
| 680 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 681 | /* V4L2 Layer */ |
| 682 | case VIDIOC_QUERYCAP: |
| 683 | { |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 684 | struct v4l2_capability *cap = arg; |
| 685 | |
| 686 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCAP) This application "\ |
| 687 | "try to use the v4l2 layer\n"); |
| 688 | strcpy(cap->driver,PWC_NAME); |
| 689 | strlcpy(cap->card, vdev->name, sizeof(cap->card)); |
| 690 | usb_make_path(pdev->udev,cap->bus_info,sizeof(cap->bus_info)); |
| 691 | cap->version = PWC_VERSION_CODE; |
| 692 | cap->capabilities = |
| 693 | V4L2_CAP_VIDEO_CAPTURE | |
| 694 | V4L2_CAP_STREAMING | |
| 695 | V4L2_CAP_READWRITE; |
| 696 | return 0; |
| 697 | } |
| 698 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 699 | case VIDIOC_ENUMINPUT: |
| 700 | { |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 701 | struct v4l2_input *i = arg; |
| 702 | |
| 703 | if ( i->index ) /* Only one INPUT is supported */ |
| 704 | return -EINVAL; |
| 705 | |
| 706 | memset(i, 0, sizeof(struct v4l2_input)); |
| 707 | strcpy(i->name, "usb"); |
| 708 | return 0; |
| 709 | } |
| 710 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 711 | case VIDIOC_G_INPUT: |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 712 | { |
| 713 | int *i = arg; |
| 714 | *i = 0; /* Only one INPUT is supported */ |
| 715 | return 0; |
| 716 | } |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 717 | case VIDIOC_S_INPUT: |
| 718 | { |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 719 | int *i = arg; |
| 720 | |
| 721 | if ( *i ) { /* Only one INPUT is supported */ |
| 722 | PWC_DEBUG_IOCTL("Only one input source is"\ |
| 723 | " supported with this webcam.\n"); |
| 724 | return -EINVAL; |
| 725 | } |
| 726 | return 0; |
| 727 | } |
| 728 | |
| 729 | /* TODO: */ |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 730 | case VIDIOC_QUERYCTRL: |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 731 | { |
| 732 | struct v4l2_queryctrl *c = arg; |
| 733 | int i; |
| 734 | |
| 735 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) query id=%d\n", c->id); |
| 736 | for (i=0; i<sizeof(pwc_controls)/sizeof(struct v4l2_queryctrl); i++) { |
| 737 | if (pwc_controls[i].id == c->id) { |
| 738 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n"); |
| 739 | memcpy(c,&pwc_controls[i],sizeof(struct v4l2_queryctrl)); |
| 740 | return 0; |
| 741 | } |
| 742 | } |
| 743 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) not found\n"); |
| 744 | |
| 745 | return -EINVAL; |
| 746 | } |
| 747 | case VIDIOC_G_CTRL: |
| 748 | { |
| 749 | struct v4l2_control *c = arg; |
| 750 | int ret; |
| 751 | |
| 752 | switch (c->id) |
| 753 | { |
| 754 | case V4L2_CID_BRIGHTNESS: |
| 755 | c->value = pwc_get_brightness(pdev); |
| 756 | if (c->value<0) |
| 757 | return -EINVAL; |
| 758 | return 0; |
| 759 | case V4L2_CID_CONTRAST: |
| 760 | c->value = pwc_get_contrast(pdev); |
| 761 | if (c->value<0) |
| 762 | return -EINVAL; |
| 763 | return 0; |
| 764 | case V4L2_CID_SATURATION: |
| 765 | ret = pwc_get_saturation(pdev, &c->value); |
| 766 | if (ret<0) |
| 767 | return -EINVAL; |
| 768 | return 0; |
| 769 | case V4L2_CID_GAMMA: |
| 770 | c->value = pwc_get_gamma(pdev); |
| 771 | if (c->value<0) |
| 772 | return -EINVAL; |
| 773 | return 0; |
| 774 | case V4L2_CID_RED_BALANCE: |
| 775 | ret = pwc_get_red_gain(pdev, &c->value); |
| 776 | if (ret<0) |
| 777 | return -EINVAL; |
| 778 | c->value >>= 8; |
| 779 | return 0; |
| 780 | case V4L2_CID_BLUE_BALANCE: |
| 781 | ret = pwc_get_blue_gain(pdev, &c->value); |
| 782 | if (ret<0) |
| 783 | return -EINVAL; |
| 784 | c->value >>= 8; |
| 785 | return 0; |
| 786 | case V4L2_CID_AUTO_WHITE_BALANCE: |
| 787 | ret = pwc_get_awb(pdev); |
| 788 | if (ret<0) |
| 789 | return -EINVAL; |
| 790 | c->value = (ret == PWC_WB_MANUAL)?0:1; |
| 791 | return 0; |
| 792 | case V4L2_CID_GAIN: |
| 793 | ret = pwc_get_agc(pdev, &c->value); |
| 794 | if (ret<0) |
| 795 | return -EINVAL; |
| 796 | c->value >>= 8; |
| 797 | return 0; |
| 798 | case V4L2_CID_AUTOGAIN: |
| 799 | ret = pwc_get_agc(pdev, &c->value); |
| 800 | if (ret<0) |
| 801 | return -EINVAL; |
| 802 | c->value = (c->value < 0)?1:0; |
| 803 | return 0; |
| 804 | case V4L2_CID_EXPOSURE: |
| 805 | ret = pwc_get_shutter_speed(pdev, &c->value); |
| 806 | if (ret<0) |
| 807 | return -EINVAL; |
| 808 | return 0; |
| 809 | case V4L2_CID_PRIVATE_COLOUR_MODE: |
| 810 | ret = pwc_get_colour_mode(pdev, &c->value); |
| 811 | if (ret < 0) |
| 812 | return -EINVAL; |
| 813 | return 0; |
| 814 | case V4L2_CID_PRIVATE_AUTOCONTOUR: |
| 815 | ret = pwc_get_contour(pdev, &c->value); |
| 816 | if (ret < 0) |
| 817 | return -EINVAL; |
| 818 | c->value=(c->value == -1?1:0); |
| 819 | return 0; |
| 820 | case V4L2_CID_PRIVATE_CONTOUR: |
| 821 | ret = pwc_get_contour(pdev, &c->value); |
| 822 | if (ret < 0) |
| 823 | return -EINVAL; |
| 824 | c->value >>= 10; |
| 825 | return 0; |
| 826 | case V4L2_CID_PRIVATE_BACKLIGHT: |
| 827 | ret = pwc_get_backlight(pdev, &c->value); |
| 828 | if (ret < 0) |
| 829 | return -EINVAL; |
| 830 | return 0; |
| 831 | case V4L2_CID_PRIVATE_FLICKERLESS: |
| 832 | ret = pwc_get_flicker(pdev, &c->value); |
| 833 | if (ret < 0) |
| 834 | return -EINVAL; |
| 835 | c->value=(c->value?1:0); |
| 836 | return 0; |
| 837 | case V4L2_CID_PRIVATE_NOISE_REDUCTION: |
| 838 | ret = pwc_get_dynamic_noise(pdev, &c->value); |
| 839 | if (ret < 0) |
| 840 | return -EINVAL; |
| 841 | return 0; |
| 842 | |
| 843 | case V4L2_CID_PRIVATE_SAVE_USER: |
| 844 | case V4L2_CID_PRIVATE_RESTORE_USER: |
| 845 | case V4L2_CID_PRIVATE_RESTORE_FACTORY: |
| 846 | return -EINVAL; |
| 847 | } |
| 848 | return -EINVAL; |
| 849 | } |
| 850 | case VIDIOC_S_CTRL: |
| 851 | { |
| 852 | struct v4l2_control *c = arg; |
| 853 | int ret; |
| 854 | |
| 855 | switch (c->id) |
| 856 | { |
| 857 | case V4L2_CID_BRIGHTNESS: |
| 858 | c->value <<= 9; |
| 859 | ret = pwc_set_brightness(pdev, c->value); |
| 860 | if (ret<0) |
| 861 | return -EINVAL; |
| 862 | return 0; |
| 863 | case V4L2_CID_CONTRAST: |
| 864 | c->value <<= 10; |
| 865 | ret = pwc_set_contrast(pdev, c->value); |
| 866 | if (ret<0) |
| 867 | return -EINVAL; |
| 868 | return 0; |
| 869 | case V4L2_CID_SATURATION: |
| 870 | ret = pwc_set_saturation(pdev, c->value); |
| 871 | if (ret<0) |
| 872 | return -EINVAL; |
| 873 | return 0; |
| 874 | case V4L2_CID_GAMMA: |
| 875 | c->value <<= 11; |
| 876 | ret = pwc_set_gamma(pdev, c->value); |
| 877 | if (ret<0) |
| 878 | return -EINVAL; |
| 879 | return 0; |
| 880 | case V4L2_CID_RED_BALANCE: |
| 881 | c->value <<= 8; |
| 882 | ret = pwc_set_red_gain(pdev, c->value); |
| 883 | if (ret<0) |
| 884 | return -EINVAL; |
| 885 | return 0; |
| 886 | case V4L2_CID_BLUE_BALANCE: |
| 887 | c->value <<= 8; |
| 888 | ret = pwc_set_blue_gain(pdev, c->value); |
| 889 | if (ret<0) |
| 890 | return -EINVAL; |
| 891 | return 0; |
| 892 | case V4L2_CID_AUTO_WHITE_BALANCE: |
| 893 | c->value = (c->value == 0)?PWC_WB_MANUAL:PWC_WB_AUTO; |
| 894 | ret = pwc_set_awb(pdev, c->value); |
| 895 | if (ret<0) |
| 896 | return -EINVAL; |
| 897 | return 0; |
| 898 | case V4L2_CID_EXPOSURE: |
| 899 | c->value <<= 8; |
| 900 | ret = pwc_set_shutter_speed(pdev, c->value?0:1, c->value); |
| 901 | if (ret<0) |
| 902 | return -EINVAL; |
| 903 | return 0; |
| 904 | case V4L2_CID_AUTOGAIN: |
| 905 | /* autogain off means nothing without a gain */ |
| 906 | if (c->value == 0) |
| 907 | return 0; |
| 908 | ret = pwc_set_agc(pdev, c->value, 0); |
| 909 | if (ret<0) |
| 910 | return -EINVAL; |
| 911 | return 0; |
| 912 | case V4L2_CID_GAIN: |
| 913 | c->value <<= 8; |
| 914 | ret = pwc_set_agc(pdev, 0, c->value); |
| 915 | if (ret<0) |
| 916 | return -EINVAL; |
| 917 | return 0; |
| 918 | case V4L2_CID_PRIVATE_SAVE_USER: |
| 919 | if (pwc_save_user(pdev)) |
| 920 | return -EINVAL; |
| 921 | return 0; |
| 922 | case V4L2_CID_PRIVATE_RESTORE_USER: |
| 923 | if (pwc_restore_user(pdev)) |
| 924 | return -EINVAL; |
| 925 | return 0; |
| 926 | case V4L2_CID_PRIVATE_RESTORE_FACTORY: |
| 927 | if (pwc_restore_factory(pdev)) |
| 928 | return -EINVAL; |
| 929 | return 0; |
| 930 | case V4L2_CID_PRIVATE_COLOUR_MODE: |
| 931 | ret = pwc_set_colour_mode(pdev, c->value); |
| 932 | if (ret < 0) |
| 933 | return -EINVAL; |
| 934 | return 0; |
| 935 | case V4L2_CID_PRIVATE_AUTOCONTOUR: |
| 936 | c->value=(c->value == 1)?-1:0; |
| 937 | ret = pwc_set_contour(pdev, c->value); |
| 938 | if (ret < 0) |
| 939 | return -EINVAL; |
| 940 | return 0; |
| 941 | case V4L2_CID_PRIVATE_CONTOUR: |
| 942 | c->value <<= 10; |
| 943 | ret = pwc_set_contour(pdev, c->value); |
| 944 | if (ret < 0) |
| 945 | return -EINVAL; |
| 946 | return 0; |
| 947 | case V4L2_CID_PRIVATE_BACKLIGHT: |
| 948 | ret = pwc_set_backlight(pdev, c->value); |
| 949 | if (ret < 0) |
| 950 | return -EINVAL; |
| 951 | return 0; |
| 952 | case V4L2_CID_PRIVATE_FLICKERLESS: |
| 953 | ret = pwc_set_flicker(pdev, c->value); |
| 954 | if (ret < 0) |
| 955 | return -EINVAL; |
| 956 | case V4L2_CID_PRIVATE_NOISE_REDUCTION: |
| 957 | ret = pwc_set_dynamic_noise(pdev, c->value); |
| 958 | if (ret < 0) |
| 959 | return -EINVAL; |
| 960 | return 0; |
| 961 | |
| 962 | } |
| 963 | return -EINVAL; |
| 964 | } |
| 965 | |
| 966 | case VIDIOC_ENUM_FMT: |
| 967 | { |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 968 | struct v4l2_fmtdesc *f = arg; |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 969 | int index; |
| 970 | |
| 971 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 972 | return -EINVAL; |
| 973 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 974 | /* We only support two format: the raw format, and YUV */ |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 975 | index = f->index; |
| 976 | memset(f,0,sizeof(struct v4l2_fmtdesc)); |
| 977 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 978 | f->index = index; |
| 979 | switch(index) |
| 980 | { |
| 981 | case 0: |
| 982 | /* RAW format */ |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 983 | f->pixelformat = pdev->type<=646?V4L2_PIX_FMT_PWC1:V4L2_PIX_FMT_PWC2; |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 984 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 985 | strlcpy(f->description,"Raw Philips Webcam",sizeof(f->description)); |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 986 | break; |
| 987 | case 1: |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 988 | f->pixelformat = V4L2_PIX_FMT_YUV420; |
| 989 | strlcpy(f->description,"4:2:0, planar, Y-Cb-Cr",sizeof(f->description)); |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 990 | break; |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 991 | default: |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 992 | return -EINVAL; |
| 993 | } |
| 994 | return 0; |
| 995 | } |
| 996 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 997 | case VIDIOC_G_FMT: |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 998 | { |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 999 | struct v4l2_format *f = arg; |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 1000 | |
| 1001 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",pdev->image.x,pdev->image.y); |
| 1002 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1003 | return -EINVAL; |
| 1004 | |
| 1005 | pwc_vidioc_fill_fmt(pdev, f); |
| 1006 | |
| 1007 | return 0; |
| 1008 | } |
| 1009 | |
| 1010 | case VIDIOC_TRY_FMT: |
| 1011 | return pwc_vidioc_try_fmt(pdev, arg); |
| 1012 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 1013 | case VIDIOC_S_FMT: |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 1014 | return pwc_vidioc_set_fmt(pdev, arg); |
| 1015 | |
| 1016 | case VIDIOC_G_STD: |
| 1017 | { |
| 1018 | v4l2_std_id *std = arg; |
| 1019 | *std = V4L2_STD_UNKNOWN; |
| 1020 | return 0; |
| 1021 | } |
| 1022 | |
| 1023 | case VIDIOC_S_STD: |
| 1024 | { |
| 1025 | v4l2_std_id *std = arg; |
| 1026 | if (*std != V4L2_STD_UNKNOWN) |
| 1027 | return -EINVAL; |
| 1028 | return 0; |
| 1029 | } |
| 1030 | |
| 1031 | case VIDIOC_ENUMSTD: |
| 1032 | { |
| 1033 | struct v4l2_standard *std = arg; |
| 1034 | if (std->index != 0) |
| 1035 | return -EINVAL; |
| 1036 | std->id = V4L2_STD_UNKNOWN; |
| 1037 | strncpy(std->name, "webcam", sizeof(std->name)); |
| 1038 | return 0; |
| 1039 | } |
| 1040 | |
| 1041 | case VIDIOC_REQBUFS: |
| 1042 | { |
| 1043 | struct v4l2_requestbuffers *rb = arg; |
| 1044 | int nbuffers; |
| 1045 | |
| 1046 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n",rb->count); |
| 1047 | if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1048 | return -EINVAL; |
| 1049 | if (rb->memory != V4L2_MEMORY_MMAP) |
| 1050 | return -EINVAL; |
| 1051 | |
| 1052 | nbuffers = rb->count; |
| 1053 | if (nbuffers < 2) |
| 1054 | nbuffers = 2; |
| 1055 | else if (nbuffers > pwc_mbufs) |
| 1056 | nbuffers = pwc_mbufs; |
| 1057 | /* Force to use our # of buffers */ |
| 1058 | rb->count = pwc_mbufs; |
| 1059 | return 0; |
| 1060 | } |
| 1061 | |
| 1062 | case VIDIOC_QUERYBUF: |
| 1063 | { |
| 1064 | struct v4l2_buffer *buf = arg; |
| 1065 | int index; |
| 1066 | |
| 1067 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n",buf->index); |
| 1068 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| 1069 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n"); |
| 1070 | return -EINVAL; |
| 1071 | } |
| 1072 | if (buf->memory != V4L2_MEMORY_MMAP) { |
| 1073 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad memory type\n"); |
| 1074 | return -EINVAL; |
| 1075 | } |
| 1076 | index = buf->index; |
| 1077 | if (index < 0 || index >= pwc_mbufs) { |
| 1078 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf->index); |
| 1079 | return -EINVAL; |
| 1080 | } |
| 1081 | |
| 1082 | memset(buf, 0, sizeof(struct v4l2_buffer)); |
| 1083 | buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1084 | buf->index = index; |
| 1085 | buf->m.offset = index * pdev->len_per_image; |
| 1086 | if (pdev->vpalette == VIDEO_PALETTE_RAW) |
| 1087 | buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); |
| 1088 | else |
| 1089 | buf->bytesused = pdev->view.size; |
| 1090 | buf->field = V4L2_FIELD_NONE; |
| 1091 | buf->memory = V4L2_MEMORY_MMAP; |
| 1092 | //buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1093 | buf->length = pdev->len_per_image; |
| 1094 | |
| 1095 | PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n",buf->index); |
| 1096 | PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n",buf->m.offset); |
| 1097 | PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n",buf->bytesused); |
| 1098 | |
| 1099 | return 0; |
| 1100 | } |
| 1101 | |
| 1102 | case VIDIOC_QBUF: |
| 1103 | { |
| 1104 | struct v4l2_buffer *buf = arg; |
| 1105 | |
| 1106 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n",buf->index); |
| 1107 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1108 | return -EINVAL; |
| 1109 | if (buf->memory != V4L2_MEMORY_MMAP) |
| 1110 | return -EINVAL; |
| 1111 | if (buf->index < 0 || buf->index >= pwc_mbufs) |
| 1112 | return -EINVAL; |
| 1113 | |
| 1114 | buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1115 | buf->flags &= ~V4L2_BUF_FLAG_DONE; |
| 1116 | |
| 1117 | return 0; |
| 1118 | } |
| 1119 | |
| 1120 | case VIDIOC_DQBUF: |
| 1121 | { |
| 1122 | struct v4l2_buffer *buf = arg; |
| 1123 | int ret; |
| 1124 | |
| 1125 | PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n"); |
| 1126 | |
| 1127 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1128 | return -EINVAL; |
| 1129 | |
| 1130 | /* Add ourselves to the frame wait-queue. |
| 1131 | |
| 1132 | FIXME: needs auditing for safety. |
| 1133 | QUESTION: In what respect? I think that using the |
| 1134 | frameq is safe now. |
| 1135 | */ |
| 1136 | add_wait_queue(&pdev->frameq, &wait); |
| 1137 | while (pdev->full_frames == NULL) { |
| 1138 | if (pdev->error_status) { |
| 1139 | remove_wait_queue(&pdev->frameq, &wait); |
| 1140 | set_current_state(TASK_RUNNING); |
| 1141 | return -pdev->error_status; |
| 1142 | } |
| 1143 | |
| 1144 | if (signal_pending(current)) { |
| 1145 | remove_wait_queue(&pdev->frameq, &wait); |
| 1146 | set_current_state(TASK_RUNNING); |
| 1147 | return -ERESTARTSYS; |
| 1148 | } |
| 1149 | schedule(); |
| 1150 | set_current_state(TASK_INTERRUPTIBLE); |
| 1151 | } |
| 1152 | remove_wait_queue(&pdev->frameq, &wait); |
| 1153 | set_current_state(TASK_RUNNING); |
| 1154 | |
| 1155 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n"); |
| 1156 | /* Decompress data in pdev->images[pdev->fill_image] */ |
| 1157 | ret = pwc_handle_frame(pdev); |
| 1158 | if (ret) |
| 1159 | return -EFAULT; |
| 1160 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n"); |
| 1161 | |
| 1162 | buf->index = pdev->fill_image; |
| 1163 | if (pdev->vpalette == VIDEO_PALETTE_RAW) |
| 1164 | buf->bytesused = pdev->frame_size + sizeof(struct pwc_raw_frame); |
| 1165 | else |
| 1166 | buf->bytesused = pdev->view.size; |
| 1167 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1168 | buf->field = V4L2_FIELD_NONE; |
| 1169 | do_gettimeofday(&buf->timestamp); |
| 1170 | buf->sequence = 0; |
| 1171 | buf->memory = V4L2_MEMORY_MMAP; |
| 1172 | buf->m.offset = pdev->fill_image * pdev->len_per_image; |
Luc Saillard | 288bb0e | 2007-04-22 23:55:10 -0300 | [diff] [blame] | 1173 | buf->length = pdev->len_per_image; |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 1174 | pwc_next_image(pdev); |
| 1175 | |
| 1176 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n",buf->index); |
| 1177 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n",buf->length); |
| 1178 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n",buf->m.offset); |
| 1179 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n",buf->bytesused); |
| 1180 | PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n"); |
| 1181 | return 0; |
| 1182 | |
| 1183 | } |
| 1184 | |
| 1185 | case VIDIOC_STREAMON: |
| 1186 | { |
| 1187 | /* WARNING: pwc_try_video_mode() called pwc_isoc_init */ |
| 1188 | pwc_isoc_init(pdev); |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | case VIDIOC_STREAMOFF: |
| 1193 | { |
| 1194 | pwc_isoc_cleanup(pdev); |
| 1195 | return 0; |
| 1196 | } |
| 1197 | |
Luc Saillard | 9ee6d78 | 2007-04-22 23:54:36 -0300 | [diff] [blame] | 1198 | case VIDIOC_ENUM_FRAMESIZES: |
| 1199 | { |
| 1200 | struct v4l2_frmsizeenum *fsize = arg; |
| 1201 | unsigned int i = 0, index = fsize->index; |
| 1202 | |
| 1203 | if (fsize->pixel_format == V4L2_PIX_FMT_YUV420) { |
| 1204 | for (i = 0; i < PSZ_MAX; i++) { |
| 1205 | if (pdev->image_mask & (1UL << i)) { |
| 1206 | if (!index--) { |
| 1207 | fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; |
| 1208 | fsize->discrete.width = pwc_image_sizes[i].x; |
| 1209 | fsize->discrete.height = pwc_image_sizes[i].y; |
| 1210 | return 0; |
| 1211 | } |
| 1212 | } |
| 1213 | } |
| 1214 | } else if (fsize->index == 0 && |
| 1215 | ((fsize->pixel_format == V4L2_PIX_FMT_PWC1 && DEVICE_USE_CODEC1(pdev->type)) || |
| 1216 | (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && DEVICE_USE_CODEC23(pdev->type)))) { |
| 1217 | |
| 1218 | fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; |
| 1219 | fsize->discrete.width = pdev->abs_max.x; |
| 1220 | fsize->discrete.height = pdev->abs_max.y; |
| 1221 | return 0; |
| 1222 | } |
| 1223 | return -EINVAL; |
| 1224 | } |
| 1225 | |
| 1226 | case VIDIOC_ENUM_FRAMEINTERVALS: |
| 1227 | { |
| 1228 | struct v4l2_frmivalenum *fival = arg; |
| 1229 | int size = -1; |
| 1230 | unsigned int i; |
| 1231 | |
| 1232 | for (i = 0; i < PSZ_MAX; i++) { |
| 1233 | if (pwc_image_sizes[i].x == fival->width && |
| 1234 | pwc_image_sizes[i].y == fival->height) { |
| 1235 | size = i; |
| 1236 | break; |
| 1237 | } |
| 1238 | } |
| 1239 | |
| 1240 | /* TODO: Support raw format */ |
| 1241 | if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) { |
| 1242 | return -EINVAL; |
| 1243 | } |
| 1244 | |
| 1245 | i = pwc_get_fps(pdev, fival->index, size); |
| 1246 | if (!i) |
| 1247 | return -EINVAL; |
| 1248 | |
| 1249 | fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; |
| 1250 | fival->discrete.numerator = 1; |
| 1251 | fival->discrete.denominator = i; |
| 1252 | |
| 1253 | return 0; |
| 1254 | } |
| 1255 | |
Luc Saillard | 2b455db | 2006-04-24 10:29:46 -0300 | [diff] [blame] | 1256 | default: |
| 1257 | return pwc_ioctl(pdev, cmd, arg); |
| 1258 | } /* ..switch */ |
| 1259 | return 0; |
| 1260 | } |
| 1261 | |
| 1262 | /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */ |