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 (C) 2011 Hans de Goede <hdegoede@redhat.com> 6 7 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx 8 driver and thus may have bugs that are not present in the original version. 9 Please send bug reports and support requests to <luc@saillard.org>. 10 The decompression routines have been implemented by reverse-engineering the 11 Nemosoft binary pwcx module. Caveat emptor. 12 13 This program is free software; you can redistribute it and/or modify 14 it under the terms of the GNU General Public License as published by 15 the Free Software Foundation; either version 2 of the License, or 16 (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, 19 but WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 GNU General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26 27*/ 28 29#include <linux/errno.h> 30#include <linux/init.h> 31#include <linux/mm.h> 32#include <linux/module.h> 33#include <linux/poll.h> 34#include <linux/vmalloc.h> 35#include <linux/jiffies.h> 36#include <asm/io.h> 37 38#include "pwc.h" 39 40#define PWC_CID_CUSTOM(ctrl) ((V4L2_CID_USER_BASE | 0xf000) + custom_ ## ctrl) 41 42static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl); 43static int pwc_s_ctrl(struct v4l2_ctrl *ctrl); 44 45static const struct v4l2_ctrl_ops pwc_ctrl_ops = { 46 .g_volatile_ctrl = pwc_g_volatile_ctrl, 47 .s_ctrl = pwc_s_ctrl, 48}; 49 50enum { awb_indoor, awb_outdoor, awb_fl, awb_manual, awb_auto }; 51enum { custom_autocontour, custom_contour, custom_noise_reduction, 52 custom_awb_speed, custom_awb_delay, 53 custom_save_user, custom_restore_user, custom_restore_factory }; 54 55static const char * const pwc_auto_whitebal_qmenu[] = { 56 "Indoor (Incandescant Lighting) Mode", 57 "Outdoor (Sunlight) Mode", 58 "Indoor (Fluorescent Lighting) Mode", 59 "Manual Mode", 60 "Auto Mode", 61 NULL 62}; 63 64static const struct v4l2_ctrl_config pwc_auto_white_balance_cfg = { 65 .ops = &pwc_ctrl_ops, 66 .id = V4L2_CID_AUTO_WHITE_BALANCE, 67 .type = V4L2_CTRL_TYPE_MENU, 68 .max = awb_auto, 69 .qmenu = pwc_auto_whitebal_qmenu, 70}; 71 72static const struct v4l2_ctrl_config pwc_autocontour_cfg = { 73 .ops = &pwc_ctrl_ops, 74 .id = PWC_CID_CUSTOM(autocontour), 75 .type = V4L2_CTRL_TYPE_BOOLEAN, 76 .name = "Auto contour", 77 .min = 0, 78 .max = 1, 79 .step = 1, 80}; 81 82static const struct v4l2_ctrl_config pwc_contour_cfg = { 83 .ops = &pwc_ctrl_ops, 84 .id = PWC_CID_CUSTOM(contour), 85 .type = V4L2_CTRL_TYPE_INTEGER, 86 .name = "Contour", 87 .flags = V4L2_CTRL_FLAG_SLIDER, 88 .min = 0, 89 .max = 63, 90 .step = 1, 91}; 92 93static const struct v4l2_ctrl_config pwc_backlight_cfg = { 94 .ops = &pwc_ctrl_ops, 95 .id = V4L2_CID_BACKLIGHT_COMPENSATION, 96 .type = V4L2_CTRL_TYPE_BOOLEAN, 97 .min = 0, 98 .max = 1, 99 .step = 1, 100}; 101 102static const struct v4l2_ctrl_config pwc_flicker_cfg = { 103 .ops = &pwc_ctrl_ops, 104 .id = V4L2_CID_BAND_STOP_FILTER, 105 .type = V4L2_CTRL_TYPE_BOOLEAN, 106 .min = 0, 107 .max = 1, 108 .step = 1, 109}; 110 111static const struct v4l2_ctrl_config pwc_noise_reduction_cfg = { 112 .ops = &pwc_ctrl_ops, 113 .id = PWC_CID_CUSTOM(noise_reduction), 114 .type = V4L2_CTRL_TYPE_INTEGER, 115 .name = "Dynamic Noise Reduction", 116 .min = 0, 117 .max = 3, 118 .step = 1, 119}; 120 121static const struct v4l2_ctrl_config pwc_save_user_cfg = { 122 .ops = &pwc_ctrl_ops, 123 .id = PWC_CID_CUSTOM(save_user), 124 .type = V4L2_CTRL_TYPE_BUTTON, 125 .name = "Save User Settings", 126}; 127 128static const struct v4l2_ctrl_config pwc_restore_user_cfg = { 129 .ops = &pwc_ctrl_ops, 130 .id = PWC_CID_CUSTOM(restore_user), 131 .type = V4L2_CTRL_TYPE_BUTTON, 132 .name = "Restore User Settings", 133}; 134 135static const struct v4l2_ctrl_config pwc_restore_factory_cfg = { 136 .ops = &pwc_ctrl_ops, 137 .id = PWC_CID_CUSTOM(restore_factory), 138 .type = V4L2_CTRL_TYPE_BUTTON, 139 .name = "Restore Factory Settings", 140}; 141 142static const struct v4l2_ctrl_config pwc_awb_speed_cfg = { 143 .ops = &pwc_ctrl_ops, 144 .id = PWC_CID_CUSTOM(awb_speed), 145 .type = V4L2_CTRL_TYPE_INTEGER, 146 .name = "Auto White Balance Speed", 147 .min = 1, 148 .max = 32, 149 .step = 1, 150}; 151 152static const struct v4l2_ctrl_config pwc_awb_delay_cfg = { 153 .ops = &pwc_ctrl_ops, 154 .id = PWC_CID_CUSTOM(awb_delay), 155 .type = V4L2_CTRL_TYPE_INTEGER, 156 .name = "Auto White Balance Delay", 157 .min = 0, 158 .max = 63, 159 .step = 1, 160}; 161 162int pwc_init_controls(struct pwc_device *pdev) 163{ 164 struct v4l2_ctrl_handler *hdl; 165 struct v4l2_ctrl_config cfg; 166 int r, def; 167 168 hdl = &pdev->ctrl_handler; 169 r = v4l2_ctrl_handler_init(hdl, 20); 170 if (r) 171 return r; 172 173 /* Brightness, contrast, saturation, gamma */ 174 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, BRIGHTNESS_FORMATTER, &def); 175 if (r || def > 127) 176 def = 63; 177 pdev->brightness = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 178 V4L2_CID_BRIGHTNESS, 0, 127, 1, def); 179 180 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, CONTRAST_FORMATTER, &def); 181 if (r || def > 63) 182 def = 31; 183 pdev->contrast = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 184 V4L2_CID_CONTRAST, 0, 63, 1, def); 185 186 if (pdev->type >= 675) { 187 if (pdev->type < 730) 188 pdev->saturation_fmt = SATURATION_MODE_FORMATTER2; 189 else 190 pdev->saturation_fmt = SATURATION_MODE_FORMATTER1; 191 r = pwc_get_s8_ctrl(pdev, GET_CHROM_CTL, pdev->saturation_fmt, 192 &def); 193 if (r || def < -100 || def > 100) 194 def = 0; 195 pdev->saturation = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 196 V4L2_CID_SATURATION, -100, 100, 1, def); 197 } 198 199 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, GAMMA_FORMATTER, &def); 200 if (r || def > 31) 201 def = 15; 202 pdev->gamma = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 203 V4L2_CID_GAMMA, 0, 31, 1, def); 204 205 /* auto white balance, red gain, blue gain */ 206 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, WB_MODE_FORMATTER, &def); 207 if (r || def > awb_auto) 208 def = awb_auto; 209 cfg = pwc_auto_white_balance_cfg; 210 cfg.name = v4l2_ctrl_get_name(cfg.id); 211 cfg.def = def; 212 pdev->auto_white_balance = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 213 /* check auto controls to avoid NULL deref in v4l2_ctrl_auto_cluster */ 214 if (!pdev->auto_white_balance) 215 return hdl->error; 216 217 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, 218 PRESET_MANUAL_RED_GAIN_FORMATTER, &def); 219 if (r) 220 def = 127; 221 pdev->red_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 222 V4L2_CID_RED_BALANCE, 0, 255, 1, def); 223 224 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, 225 PRESET_MANUAL_BLUE_GAIN_FORMATTER, &def); 226 if (r) 227 def = 127; 228 pdev->blue_balance = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 229 V4L2_CID_BLUE_BALANCE, 0, 255, 1, def); 230 231 v4l2_ctrl_auto_cluster(3, &pdev->auto_white_balance, awb_manual, true); 232 233 /* autogain, gain */ 234 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AGC_MODE_FORMATTER, &def); 235 if (r || (def != 0 && def != 0xff)) 236 def = 0; 237 /* Note a register value if 0 means auto gain is on */ 238 pdev->autogain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 239 V4L2_CID_AUTOGAIN, 0, 1, 1, def == 0); 240 if (!pdev->autogain) 241 return hdl->error; 242 243 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_AGC_FORMATTER, &def); 244 if (r || def > 63) 245 def = 31; 246 pdev->gain = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 247 V4L2_CID_GAIN, 0, 63, 1, def); 248 249 /* auto exposure, exposure */ 250 if (DEVICE_USE_CODEC2(pdev->type)) { 251 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, SHUTTER_MODE_FORMATTER, 252 &def); 253 if (r || (def != 0 && def != 0xff)) 254 def = 0; 255 /* 256 * def = 0 auto, def = ff manual 257 * menu idx 0 = auto, idx 1 = manual 258 */ 259 pdev->exposure_auto = v4l2_ctrl_new_std_menu(hdl, 260 &pwc_ctrl_ops, 261 V4L2_CID_EXPOSURE_AUTO, 262 1, 0, def != 0); 263 if (!pdev->exposure_auto) 264 return hdl->error; 265 266 /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ 267 r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, 268 READ_SHUTTER_FORMATTER, &def); 269 if (r || def > 655) 270 def = 655; 271 pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 272 V4L2_CID_EXPOSURE, 0, 655, 1, def); 273 /* CODEC2: separate auto gain & auto exposure */ 274 v4l2_ctrl_auto_cluster(2, &pdev->autogain, 0, true); 275 v4l2_ctrl_auto_cluster(2, &pdev->exposure_auto, 276 V4L2_EXPOSURE_MANUAL, true); 277 } else if (DEVICE_USE_CODEC3(pdev->type)) { 278 /* GET_LUM_CTL, PRESET_SHUTTER_FORMATTER is unreliable */ 279 r = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, 280 READ_SHUTTER_FORMATTER, &def); 281 if (r || def > 255) 282 def = 255; 283 pdev->exposure = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 284 V4L2_CID_EXPOSURE, 0, 255, 1, def); 285 /* CODEC3: both gain and exposure controlled by autogain */ 286 pdev->autogain_expo_cluster[0] = pdev->autogain; 287 pdev->autogain_expo_cluster[1] = pdev->gain; 288 pdev->autogain_expo_cluster[2] = pdev->exposure; 289 v4l2_ctrl_auto_cluster(3, pdev->autogain_expo_cluster, 290 0, true); 291 } 292 293 /* color / bw setting */ 294 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, COLOUR_MODE_FORMATTER, 295 &def); 296 if (r || (def != 0 && def != 0xff)) 297 def = 0xff; 298 /* def = 0 bw, def = ff color, menu idx 0 = color, idx 1 = bw */ 299 pdev->colorfx = v4l2_ctrl_new_std_menu(hdl, &pwc_ctrl_ops, 300 V4L2_CID_COLORFX, 1, 0, def == 0); 301 302 /* autocontour, contour */ 303 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, AUTO_CONTOUR_FORMATTER, &def); 304 if (r || (def != 0 && def != 0xff)) 305 def = 0; 306 cfg = pwc_autocontour_cfg; 307 cfg.def = def == 0; 308 pdev->autocontour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 309 if (!pdev->autocontour) 310 return hdl->error; 311 312 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, PRESET_CONTOUR_FORMATTER, &def); 313 if (r || def > 63) 314 def = 31; 315 cfg = pwc_contour_cfg; 316 cfg.def = def; 317 pdev->contour = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 318 319 v4l2_ctrl_auto_cluster(2, &pdev->autocontour, 0, false); 320 321 /* backlight */ 322 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, 323 BACK_LIGHT_COMPENSATION_FORMATTER, &def); 324 if (r || (def != 0 && def != 0xff)) 325 def = 0; 326 cfg = pwc_backlight_cfg; 327 cfg.name = v4l2_ctrl_get_name(cfg.id); 328 cfg.def = def == 0; 329 pdev->backlight = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 330 331 /* flikker rediction */ 332 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, 333 FLICKERLESS_MODE_FORMATTER, &def); 334 if (r || (def != 0 && def != 0xff)) 335 def = 0; 336 cfg = pwc_flicker_cfg; 337 cfg.name = v4l2_ctrl_get_name(cfg.id); 338 cfg.def = def == 0; 339 pdev->flicker = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 340 341 /* Dynamic noise reduction */ 342 r = pwc_get_u8_ctrl(pdev, GET_LUM_CTL, 343 DYNAMIC_NOISE_CONTROL_FORMATTER, &def); 344 if (r || def > 3) 345 def = 2; 346 cfg = pwc_noise_reduction_cfg; 347 cfg.def = def; 348 pdev->noise_reduction = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 349 350 /* Save / Restore User / Factory Settings */ 351 pdev->save_user = v4l2_ctrl_new_custom(hdl, &pwc_save_user_cfg, NULL); 352 pdev->restore_user = v4l2_ctrl_new_custom(hdl, &pwc_restore_user_cfg, 353 NULL); 354 if (pdev->restore_user) 355 pdev->restore_user->flags |= V4L2_CTRL_FLAG_UPDATE; 356 pdev->restore_factory = v4l2_ctrl_new_custom(hdl, 357 &pwc_restore_factory_cfg, 358 NULL); 359 if (pdev->restore_factory) 360 pdev->restore_factory->flags |= V4L2_CTRL_FLAG_UPDATE; 361 362 /* Auto White Balance speed & delay */ 363 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, 364 AWB_CONTROL_SPEED_FORMATTER, &def); 365 if (r || def < 1 || def > 32) 366 def = 1; 367 cfg = pwc_awb_speed_cfg; 368 cfg.def = def; 369 pdev->awb_speed = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 370 371 r = pwc_get_u8_ctrl(pdev, GET_CHROM_CTL, 372 AWB_CONTROL_DELAY_FORMATTER, &def); 373 if (r || def > 63) 374 def = 0; 375 cfg = pwc_awb_delay_cfg; 376 cfg.def = def; 377 pdev->awb_delay = v4l2_ctrl_new_custom(hdl, &cfg, NULL); 378 379 if (!(pdev->features & FEATURE_MOTOR_PANTILT)) 380 return hdl->error; 381 382 /* Motor pan / tilt / reset */ 383 pdev->motor_pan = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 384 V4L2_CID_PAN_RELATIVE, -4480, 4480, 64, 0); 385 if (!pdev->motor_pan) 386 return hdl->error; 387 pdev->motor_tilt = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 388 V4L2_CID_TILT_RELATIVE, -1920, 1920, 64, 0); 389 pdev->motor_pan_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 390 V4L2_CID_PAN_RESET, 0, 0, 0, 0); 391 pdev->motor_tilt_reset = v4l2_ctrl_new_std(hdl, &pwc_ctrl_ops, 392 V4L2_CID_TILT_RESET, 0, 0, 0, 0); 393 v4l2_ctrl_cluster(4, &pdev->motor_pan); 394 395 return hdl->error; 396} 397 398static void pwc_vidioc_fill_fmt(struct v4l2_format *f, 399 int width, int height, u32 pixfmt) 400{ 401 memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); 402 f->fmt.pix.width = width; 403 f->fmt.pix.height = height; 404 f->fmt.pix.field = V4L2_FIELD_NONE; 405 f->fmt.pix.pixelformat = pixfmt; 406 f->fmt.pix.bytesperline = f->fmt.pix.width; 407 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.width * 3 / 2; 408 f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; 409 PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() " 410 "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n", 411 f->fmt.pix.width, 412 f->fmt.pix.height, 413 f->fmt.pix.bytesperline, 414 f->fmt.pix.sizeimage, 415 (f->fmt.pix.pixelformat)&255, 416 (f->fmt.pix.pixelformat>>8)&255, 417 (f->fmt.pix.pixelformat>>16)&255, 418 (f->fmt.pix.pixelformat>>24)&255); 419} 420 421/* ioctl(VIDIOC_TRY_FMT) */ 422static int pwc_vidioc_try_fmt(struct pwc_device *pdev, struct v4l2_format *f) 423{ 424 int size; 425 426 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) { 427 PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n"); 428 return -EINVAL; 429 } 430 431 switch (f->fmt.pix.pixelformat) { 432 case V4L2_PIX_FMT_YUV420: 433 break; 434 case V4L2_PIX_FMT_PWC1: 435 if (DEVICE_USE_CODEC23(pdev->type)) { 436 PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n"); 437 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; 438 } 439 break; 440 case V4L2_PIX_FMT_PWC2: 441 if (DEVICE_USE_CODEC1(pdev->type)) { 442 PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n"); 443 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; 444 } 445 break; 446 default: 447 PWC_DEBUG_IOCTL("Unsupported pixel format\n"); 448 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; 449 } 450 451 size = pwc_get_size(pdev, f->fmt.pix.width, f->fmt.pix.height); 452 pwc_vidioc_fill_fmt(f, 453 pwc_image_sizes[size][0], 454 pwc_image_sizes[size][1], 455 f->fmt.pix.pixelformat); 456 457 return 0; 458} 459 460/* ioctl(VIDIOC_SET_FMT) */ 461 462static int pwc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) 463{ 464 struct pwc_device *pdev = video_drvdata(file); 465 int ret, pixelformat, compression = 0; 466 467 ret = pwc_vidioc_try_fmt(pdev, f); 468 if (ret < 0) 469 return ret; 470 471 if (vb2_is_busy(&pdev->vb_queue)) 472 return -EBUSY; 473 474 pixelformat = f->fmt.pix.pixelformat; 475 476 PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d " 477 "format=%c%c%c%c\n", 478 f->fmt.pix.width, f->fmt.pix.height, pdev->vframes, 479 (pixelformat)&255, 480 (pixelformat>>8)&255, 481 (pixelformat>>16)&255, 482 (pixelformat>>24)&255); 483 484 ret = pwc_set_video_mode(pdev, f->fmt.pix.width, f->fmt.pix.height, 485 pixelformat, 30, &compression, 0); 486 487 PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret); 488 489 pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt); 490 return ret; 491} 492 493static int pwc_querycap(struct file *file, void *fh, struct v4l2_capability *cap) 494{ 495 struct pwc_device *pdev = video_drvdata(file); 496 497 strcpy(cap->driver, PWC_NAME); 498 strlcpy(cap->card, pdev->vdev.name, sizeof(cap->card)); 499 usb_make_path(pdev->udev, cap->bus_info, sizeof(cap->bus_info)); 500 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | 501 V4L2_CAP_READWRITE; 502 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; 503 return 0; 504} 505 506static int pwc_enum_input(struct file *file, void *fh, struct v4l2_input *i) 507{ 508 if (i->index) /* Only one INPUT is supported */ 509 return -EINVAL; 510 511 strlcpy(i->name, "Camera", sizeof(i->name)); 512 i->type = V4L2_INPUT_TYPE_CAMERA; 513 return 0; 514} 515 516static int pwc_g_input(struct file *file, void *fh, unsigned int *i) 517{ 518 *i = 0; 519 return 0; 520} 521 522static int pwc_s_input(struct file *file, void *fh, unsigned int i) 523{ 524 return i ? -EINVAL : 0; 525} 526 527static int pwc_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 528{ 529 struct pwc_device *pdev = 530 container_of(ctrl->handler, struct pwc_device, ctrl_handler); 531 int ret = 0; 532 533 switch (ctrl->id) { 534 case V4L2_CID_AUTO_WHITE_BALANCE: 535 if (pdev->color_bal_valid && 536 (pdev->auto_white_balance->val != awb_auto || 537 time_before(jiffies, 538 pdev->last_color_bal_update + HZ / 4))) { 539 pdev->red_balance->val = pdev->last_red_balance; 540 pdev->blue_balance->val = pdev->last_blue_balance; 541 break; 542 } 543 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, 544 READ_RED_GAIN_FORMATTER, 545 &pdev->red_balance->val); 546 if (ret) 547 break; 548 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, 549 READ_BLUE_GAIN_FORMATTER, 550 &pdev->blue_balance->val); 551 if (ret) 552 break; 553 pdev->last_red_balance = pdev->red_balance->val; 554 pdev->last_blue_balance = pdev->blue_balance->val; 555 pdev->last_color_bal_update = jiffies; 556 pdev->color_bal_valid = true; 557 break; 558 case V4L2_CID_AUTOGAIN: 559 if (pdev->gain_valid && time_before(jiffies, 560 pdev->last_gain_update + HZ / 4)) { 561 pdev->gain->val = pdev->last_gain; 562 break; 563 } 564 ret = pwc_get_u8_ctrl(pdev, GET_STATUS_CTL, 565 READ_AGC_FORMATTER, &pdev->gain->val); 566 if (ret) 567 break; 568 pdev->last_gain = pdev->gain->val; 569 pdev->last_gain_update = jiffies; 570 pdev->gain_valid = true; 571 if (!DEVICE_USE_CODEC3(pdev->type)) 572 break; 573 /* Fall through for CODEC3 where autogain also controls expo */ 574 case V4L2_CID_EXPOSURE_AUTO: 575 if (pdev->exposure_valid && time_before(jiffies, 576 pdev->last_exposure_update + HZ / 4)) { 577 pdev->exposure->val = pdev->last_exposure; 578 break; 579 } 580 ret = pwc_get_u16_ctrl(pdev, GET_STATUS_CTL, 581 READ_SHUTTER_FORMATTER, 582 &pdev->exposure->val); 583 if (ret) 584 break; 585 pdev->last_exposure = pdev->exposure->val; 586 pdev->last_exposure_update = jiffies; 587 pdev->exposure_valid = true; 588 break; 589 default: 590 ret = -EINVAL; 591 } 592 593 if (ret) 594 PWC_ERROR("g_ctrl %s error %d\n", ctrl->name, ret); 595 596 return ret; 597} 598 599static int pwc_set_awb(struct pwc_device *pdev) 600{ 601 int ret; 602 603 if (pdev->auto_white_balance->is_new) { 604 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 605 WB_MODE_FORMATTER, 606 pdev->auto_white_balance->val); 607 if (ret) 608 return ret; 609 610 if (pdev->auto_white_balance->val != awb_manual) 611 pdev->color_bal_valid = false; /* Force cache update */ 612 613 /* 614 * If this is a preset, update our red / blue balance values 615 * so that events get generated for the new preset values 616 */ 617 if (pdev->auto_white_balance->val == awb_indoor || 618 pdev->auto_white_balance->val == awb_outdoor || 619 pdev->auto_white_balance->val == awb_fl) 620 pwc_g_volatile_ctrl(pdev->auto_white_balance); 621 } 622 if (pdev->auto_white_balance->val != awb_manual) 623 return 0; 624 625 if (pdev->red_balance->is_new) { 626 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 627 PRESET_MANUAL_RED_GAIN_FORMATTER, 628 pdev->red_balance->val); 629 if (ret) 630 return ret; 631 } 632 633 if (pdev->blue_balance->is_new) { 634 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 635 PRESET_MANUAL_BLUE_GAIN_FORMATTER, 636 pdev->blue_balance->val); 637 if (ret) 638 return ret; 639 } 640 return 0; 641} 642 643/* For CODEC2 models which have separate autogain and auto exposure */ 644static int pwc_set_autogain(struct pwc_device *pdev) 645{ 646 int ret; 647 648 if (pdev->autogain->is_new) { 649 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 650 AGC_MODE_FORMATTER, 651 pdev->autogain->val ? 0 : 0xff); 652 if (ret) 653 return ret; 654 655 if (pdev->autogain->val) 656 pdev->gain_valid = false; /* Force cache update */ 657 } 658 659 if (pdev->autogain->val) 660 return 0; 661 662 if (pdev->gain->is_new) { 663 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 664 PRESET_AGC_FORMATTER, 665 pdev->gain->val); 666 if (ret) 667 return ret; 668 } 669 return 0; 670} 671 672/* For CODEC2 models which have separate autogain and auto exposure */ 673static int pwc_set_exposure_auto(struct pwc_device *pdev) 674{ 675 int ret; 676 int is_auto = pdev->exposure_auto->val == V4L2_EXPOSURE_AUTO; 677 678 if (pdev->exposure_auto->is_new) { 679 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 680 SHUTTER_MODE_FORMATTER, 681 is_auto ? 0 : 0xff); 682 if (ret) 683 return ret; 684 685 if (is_auto) 686 pdev->exposure_valid = false; /* Force cache update */ 687 } 688 689 if (is_auto) 690 return 0; 691 692 if (pdev->exposure->is_new) { 693 ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, 694 PRESET_SHUTTER_FORMATTER, 695 pdev->exposure->val); 696 if (ret) 697 return ret; 698 } 699 return 0; 700} 701 702/* For CODEC3 models which have autogain controlling both gain and exposure */ 703static int pwc_set_autogain_expo(struct pwc_device *pdev) 704{ 705 int ret; 706 707 if (pdev->autogain->is_new) { 708 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 709 AGC_MODE_FORMATTER, 710 pdev->autogain->val ? 0 : 0xff); 711 if (ret) 712 return ret; 713 714 if (pdev->autogain->val) { 715 pdev->gain_valid = false; /* Force cache update */ 716 pdev->exposure_valid = false; /* Force cache update */ 717 } 718 } 719 720 if (pdev->autogain->val) 721 return 0; 722 723 if (pdev->gain->is_new) { 724 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 725 PRESET_AGC_FORMATTER, 726 pdev->gain->val); 727 if (ret) 728 return ret; 729 } 730 731 if (pdev->exposure->is_new) { 732 ret = pwc_set_u16_ctrl(pdev, SET_LUM_CTL, 733 PRESET_SHUTTER_FORMATTER, 734 pdev->exposure->val); 735 if (ret) 736 return ret; 737 } 738 return 0; 739} 740 741static int pwc_set_motor(struct pwc_device *pdev) 742{ 743 int ret; 744 745 pdev->ctrl_buf[0] = 0; 746 if (pdev->motor_pan_reset->is_new) 747 pdev->ctrl_buf[0] |= 0x01; 748 if (pdev->motor_tilt_reset->is_new) 749 pdev->ctrl_buf[0] |= 0x02; 750 if (pdev->motor_pan_reset->is_new || pdev->motor_tilt_reset->is_new) { 751 ret = send_control_msg(pdev, SET_MPT_CTL, 752 PT_RESET_CONTROL_FORMATTER, 753 pdev->ctrl_buf, 1); 754 if (ret < 0) 755 return ret; 756 } 757 758 memset(pdev->ctrl_buf, 0, 4); 759 if (pdev->motor_pan->is_new) { 760 pdev->ctrl_buf[0] = pdev->motor_pan->val & 0xFF; 761 pdev->ctrl_buf[1] = (pdev->motor_pan->val >> 8); 762 } 763 if (pdev->motor_tilt->is_new) { 764 pdev->ctrl_buf[2] = pdev->motor_tilt->val & 0xFF; 765 pdev->ctrl_buf[3] = (pdev->motor_tilt->val >> 8); 766 } 767 if (pdev->motor_pan->is_new || pdev->motor_tilt->is_new) { 768 ret = send_control_msg(pdev, SET_MPT_CTL, 769 PT_RELATIVE_CONTROL_FORMATTER, 770 pdev->ctrl_buf, 4); 771 if (ret < 0) 772 return ret; 773 } 774 775 return 0; 776} 777 778static int pwc_s_ctrl(struct v4l2_ctrl *ctrl) 779{ 780 struct pwc_device *pdev = 781 container_of(ctrl->handler, struct pwc_device, ctrl_handler); 782 int ret = 0; 783 784 switch (ctrl->id) { 785 case V4L2_CID_BRIGHTNESS: 786 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 787 BRIGHTNESS_FORMATTER, ctrl->val); 788 break; 789 case V4L2_CID_CONTRAST: 790 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 791 CONTRAST_FORMATTER, ctrl->val); 792 break; 793 case V4L2_CID_SATURATION: 794 ret = pwc_set_s8_ctrl(pdev, SET_CHROM_CTL, 795 pdev->saturation_fmt, ctrl->val); 796 break; 797 case V4L2_CID_GAMMA: 798 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 799 GAMMA_FORMATTER, ctrl->val); 800 break; 801 case V4L2_CID_AUTO_WHITE_BALANCE: 802 ret = pwc_set_awb(pdev); 803 break; 804 case V4L2_CID_AUTOGAIN: 805 if (DEVICE_USE_CODEC2(pdev->type)) 806 ret = pwc_set_autogain(pdev); 807 else if (DEVICE_USE_CODEC3(pdev->type)) 808 ret = pwc_set_autogain_expo(pdev); 809 else 810 ret = -EINVAL; 811 break; 812 case V4L2_CID_EXPOSURE_AUTO: 813 if (DEVICE_USE_CODEC2(pdev->type)) 814 ret = pwc_set_exposure_auto(pdev); 815 else 816 ret = -EINVAL; 817 break; 818 case V4L2_CID_COLORFX: 819 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 820 COLOUR_MODE_FORMATTER, 821 ctrl->val ? 0 : 0xff); 822 break; 823 case PWC_CID_CUSTOM(autocontour): 824 if (pdev->autocontour->is_new) { 825 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 826 AUTO_CONTOUR_FORMATTER, 827 pdev->autocontour->val ? 0 : 0xff); 828 } 829 if (ret == 0 && pdev->contour->is_new) { 830 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 831 PRESET_CONTOUR_FORMATTER, 832 pdev->contour->val); 833 } 834 break; 835 case V4L2_CID_BACKLIGHT_COMPENSATION: 836 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 837 BACK_LIGHT_COMPENSATION_FORMATTER, 838 ctrl->val ? 0 : 0xff); 839 break; 840 case V4L2_CID_BAND_STOP_FILTER: 841 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 842 FLICKERLESS_MODE_FORMATTER, 843 ctrl->val ? 0 : 0xff); 844 break; 845 case PWC_CID_CUSTOM(noise_reduction): 846 ret = pwc_set_u8_ctrl(pdev, SET_LUM_CTL, 847 DYNAMIC_NOISE_CONTROL_FORMATTER, 848 ctrl->val); 849 break; 850 case PWC_CID_CUSTOM(save_user): 851 ret = pwc_button_ctrl(pdev, SAVE_USER_DEFAULTS_FORMATTER); 852 break; 853 case PWC_CID_CUSTOM(restore_user): 854 ret = pwc_button_ctrl(pdev, RESTORE_USER_DEFAULTS_FORMATTER); 855 break; 856 case PWC_CID_CUSTOM(restore_factory): 857 ret = pwc_button_ctrl(pdev, 858 RESTORE_FACTORY_DEFAULTS_FORMATTER); 859 break; 860 case PWC_CID_CUSTOM(awb_speed): 861 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 862 AWB_CONTROL_SPEED_FORMATTER, 863 ctrl->val); 864 break; 865 case PWC_CID_CUSTOM(awb_delay): 866 ret = pwc_set_u8_ctrl(pdev, SET_CHROM_CTL, 867 AWB_CONTROL_DELAY_FORMATTER, 868 ctrl->val); 869 break; 870 case V4L2_CID_PAN_RELATIVE: 871 ret = pwc_set_motor(pdev); 872 break; 873 default: 874 ret = -EINVAL; 875 } 876 877 if (ret) 878 PWC_ERROR("s_ctrl %s error %d\n", ctrl->name, ret); 879 880 return ret; 881} 882 883static int pwc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) 884{ 885 struct pwc_device *pdev = video_drvdata(file); 886 887 /* We only support two format: the raw format, and YUV */ 888 switch (f->index) { 889 case 0: 890 /* RAW format */ 891 f->pixelformat = pdev->type <= 646 ? V4L2_PIX_FMT_PWC1 : V4L2_PIX_FMT_PWC2; 892 f->flags = V4L2_FMT_FLAG_COMPRESSED; 893 strlcpy(f->description, "Raw Philips Webcam", sizeof(f->description)); 894 break; 895 case 1: 896 f->pixelformat = V4L2_PIX_FMT_YUV420; 897 strlcpy(f->description, "4:2:0, planar, Y-Cb-Cr", sizeof(f->description)); 898 break; 899 default: 900 return -EINVAL; 901 } 902 return 0; 903} 904 905static int pwc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) 906{ 907 struct pwc_device *pdev = video_drvdata(file); 908 909 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 910 return -EINVAL; 911 912 PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n", 913 pdev->width, pdev->height); 914 pwc_vidioc_fill_fmt(f, pdev->width, pdev->height, pdev->pixfmt); 915 return 0; 916} 917 918static int pwc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) 919{ 920 struct pwc_device *pdev = video_drvdata(file); 921 922 return pwc_vidioc_try_fmt(pdev, f); 923} 924 925static int pwc_enum_framesizes(struct file *file, void *fh, 926 struct v4l2_frmsizeenum *fsize) 927{ 928 struct pwc_device *pdev = video_drvdata(file); 929 unsigned int i = 0, index = fsize->index; 930 931 if (fsize->pixel_format == V4L2_PIX_FMT_YUV420 || 932 (fsize->pixel_format == V4L2_PIX_FMT_PWC1 && 933 DEVICE_USE_CODEC1(pdev->type)) || 934 (fsize->pixel_format == V4L2_PIX_FMT_PWC2 && 935 DEVICE_USE_CODEC23(pdev->type))) { 936 for (i = 0; i < PSZ_MAX; i++) { 937 if (!(pdev->image_mask & (1UL << i))) 938 continue; 939 if (!index--) { 940 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; 941 fsize->discrete.width = pwc_image_sizes[i][0]; 942 fsize->discrete.height = pwc_image_sizes[i][1]; 943 return 0; 944 } 945 } 946 } 947 return -EINVAL; 948} 949 950static int pwc_enum_frameintervals(struct file *file, void *fh, 951 struct v4l2_frmivalenum *fival) 952{ 953 struct pwc_device *pdev = video_drvdata(file); 954 int size = -1; 955 unsigned int i; 956 957 for (i = 0; i < PSZ_MAX; i++) { 958 if (pwc_image_sizes[i][0] == fival->width && 959 pwc_image_sizes[i][1] == fival->height) { 960 size = i; 961 break; 962 } 963 } 964 965 /* TODO: Support raw format */ 966 if (size < 0 || fival->pixel_format != V4L2_PIX_FMT_YUV420) 967 return -EINVAL; 968 969 i = pwc_get_fps(pdev, fival->index, size); 970 if (!i) 971 return -EINVAL; 972 973 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; 974 fival->discrete.numerator = 1; 975 fival->discrete.denominator = i; 976 977 return 0; 978} 979 980static int pwc_g_parm(struct file *file, void *fh, 981 struct v4l2_streamparm *parm) 982{ 983 struct pwc_device *pdev = video_drvdata(file); 984 985 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 986 return -EINVAL; 987 988 memset(parm, 0, sizeof(*parm)); 989 990 parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 991 parm->parm.capture.readbuffers = MIN_FRAMES; 992 parm->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME; 993 parm->parm.capture.timeperframe.denominator = pdev->vframes; 994 parm->parm.capture.timeperframe.numerator = 1; 995 996 return 0; 997} 998 999static int pwc_s_parm(struct file *file, void *fh, 1000 struct v4l2_streamparm *parm) 1001{ 1002 struct pwc_device *pdev = video_drvdata(file); 1003 int compression = 0; 1004 int ret, fps; 1005 1006 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1007 return -EINVAL; 1008 1009 /* If timeperframe == 0, then reset the framerate to the nominal value. 1010 We pick a high framerate here, and let pwc_set_video_mode() figure 1011 out the best match. */ 1012 if (parm->parm.capture.timeperframe.numerator == 0 || 1013 parm->parm.capture.timeperframe.denominator == 0) 1014 fps = 30; 1015 else 1016 fps = parm->parm.capture.timeperframe.denominator / 1017 parm->parm.capture.timeperframe.numerator; 1018 1019 if (vb2_is_busy(&pdev->vb_queue)) 1020 return -EBUSY; 1021 1022 ret = pwc_set_video_mode(pdev, pdev->width, pdev->height, pdev->pixfmt, 1023 fps, &compression, 0); 1024 1025 pwc_g_parm(file, fh, parm); 1026 1027 return ret; 1028} 1029 1030const struct v4l2_ioctl_ops pwc_ioctl_ops = { 1031 .vidioc_querycap = pwc_querycap, 1032 .vidioc_enum_input = pwc_enum_input, 1033 .vidioc_g_input = pwc_g_input, 1034 .vidioc_s_input = pwc_s_input, 1035 .vidioc_enum_fmt_vid_cap = pwc_enum_fmt_vid_cap, 1036 .vidioc_g_fmt_vid_cap = pwc_g_fmt_vid_cap, 1037 .vidioc_s_fmt_vid_cap = pwc_s_fmt_vid_cap, 1038 .vidioc_try_fmt_vid_cap = pwc_try_fmt_vid_cap, 1039 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1040 .vidioc_querybuf = vb2_ioctl_querybuf, 1041 .vidioc_qbuf = vb2_ioctl_qbuf, 1042 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1043 .vidioc_streamon = vb2_ioctl_streamon, 1044 .vidioc_streamoff = vb2_ioctl_streamoff, 1045 .vidioc_log_status = v4l2_ctrl_log_status, 1046 .vidioc_enum_framesizes = pwc_enum_framesizes, 1047 .vidioc_enum_frameintervals = pwc_enum_frameintervals, 1048 .vidioc_g_parm = pwc_g_parm, 1049 .vidioc_s_parm = pwc_s_parm, 1050 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1051 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1052}; 1053