Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher |
| 3 | * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland |
| 4 | * Copyright (c) 2002, 2003 Tuukka Toivonen |
| 5 | * Copyright (c) 2008 Erik Andrén |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | * |
| 21 | * P/N 861037: Sensor HDCS1000 ASIC STV0600 |
| 22 | * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600 |
| 23 | * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express |
| 24 | * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam |
| 25 | * P/N 861075-0040: Sensor HDCS1000 ASIC |
| 26 | * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB |
| 27 | * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * The spec file for the PB-0100 suggests the following for best quality |
| 32 | * images after the sensor has been reset : |
| 33 | * |
| 34 | * PB_ADCGAINL = R60 = 0x03 (3 dec) : sets low reference of ADC |
| 35 | to produce good black level |
| 36 | * PB_PREADCTRL = R32 = 0x1400 (5120 dec) : Enables global gain changes |
| 37 | through R53 |
| 38 | * PB_ADCMINGAIN = R52 = 0x10 (16 dec) : Sets the minimum gain for |
| 39 | auto-exposure |
| 40 | * PB_ADCGLOBALGAIN = R53 = 0x10 (16 dec) : Sets the global gain |
| 41 | * PB_EXPGAIN = R14 = 0x11 (17 dec) : Sets the auto-exposure value |
| 42 | * PB_UPDATEINT = R23 = 0x02 (2 dec) : Sets the speed on |
| 43 | auto-exposure routine |
| 44 | * PB_CFILLIN = R5 = 0x0E (14 dec) : Sets the frame rate |
| 45 | */ |
| 46 | |
| 47 | #include "stv06xx_pb0100.h" |
| 48 | |
Erik Andren | 766231a | 2008-12-31 14:33:53 -0300 | [diff] [blame] | 49 | static const struct ctrl pb0100_ctrl[] = { |
| 50 | #define GAIN_IDX 0 |
| 51 | { |
| 52 | { |
| 53 | .id = V4L2_CID_GAIN, |
| 54 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 55 | .name = "Gain", |
| 56 | .minimum = 0, |
| 57 | .maximum = 255, |
| 58 | .step = 1, |
| 59 | .default_value = 128 |
| 60 | }, |
| 61 | .set = pb0100_set_gain, |
| 62 | .get = pb0100_get_gain |
| 63 | }, |
| 64 | #define RED_BALANCE_IDX 1 |
| 65 | { |
| 66 | { |
| 67 | .id = V4L2_CID_RED_BALANCE, |
| 68 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 69 | .name = "Red Balance", |
| 70 | .minimum = -255, |
| 71 | .maximum = 255, |
| 72 | .step = 1, |
| 73 | .default_value = 0 |
| 74 | }, |
| 75 | .set = pb0100_set_red_balance, |
| 76 | .get = pb0100_get_red_balance |
| 77 | }, |
| 78 | #define BLUE_BALANCE_IDX 2 |
| 79 | { |
| 80 | { |
| 81 | .id = V4L2_CID_BLUE_BALANCE, |
| 82 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 83 | .name = "Blue Balance", |
| 84 | .minimum = -255, |
| 85 | .maximum = 255, |
| 86 | .step = 1, |
| 87 | .default_value = 0 |
| 88 | }, |
| 89 | .set = pb0100_set_blue_balance, |
| 90 | .get = pb0100_get_blue_balance |
| 91 | }, |
| 92 | #define EXPOSURE_IDX 3 |
| 93 | { |
| 94 | { |
| 95 | .id = V4L2_CID_EXPOSURE, |
| 96 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 97 | .name = "Exposure", |
| 98 | .minimum = 0, |
| 99 | .maximum = 511, |
| 100 | .step = 1, |
| 101 | .default_value = 12 |
| 102 | }, |
| 103 | .set = pb0100_set_exposure, |
| 104 | .get = pb0100_get_exposure |
| 105 | }, |
| 106 | #define AUTOGAIN_IDX 4 |
| 107 | { |
| 108 | { |
| 109 | .id = V4L2_CID_AUTOGAIN, |
| 110 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 111 | .name = "Automatic Gain and Exposure", |
| 112 | .minimum = 0, |
| 113 | .maximum = 1, |
| 114 | .step = 1, |
| 115 | .default_value = 1 |
| 116 | }, |
| 117 | .set = pb0100_set_autogain, |
| 118 | .get = pb0100_get_autogain |
| 119 | }, |
| 120 | #define AUTOGAIN_TARGET_IDX 5 |
| 121 | { |
| 122 | { |
| 123 | .id = V4L2_CTRL_CLASS_USER + 0x1000, |
| 124 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 125 | .name = "Automatic Gain Target", |
| 126 | .minimum = 0, |
| 127 | .maximum = 255, |
| 128 | .step = 1, |
| 129 | .default_value = 128 |
| 130 | }, |
| 131 | .set = pb0100_set_autogain_target, |
| 132 | .get = pb0100_get_autogain_target |
| 133 | }, |
| 134 | #define NATURAL_IDX 6 |
| 135 | { |
| 136 | { |
| 137 | .id = V4L2_CTRL_CLASS_USER + 0x1001, |
| 138 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 139 | .name = "Natural Light Source", |
| 140 | .minimum = 0, |
| 141 | .maximum = 1, |
| 142 | .step = 1, |
| 143 | .default_value = 1 |
| 144 | }, |
| 145 | .set = pb0100_set_natural, |
| 146 | .get = pb0100_get_natural |
| 147 | } |
| 148 | }; |
| 149 | |
| 150 | static struct v4l2_pix_format pb0100_mode[] = { |
| 151 | /* low res / subsample modes disabled as they are only half res horizontal, |
| 152 | halving the vertical resolution does not seem to work */ |
| 153 | { |
| 154 | 320, |
| 155 | 240, |
| 156 | V4L2_PIX_FMT_SGRBG8, |
| 157 | V4L2_FIELD_NONE, |
| 158 | .sizeimage = 320 * 240, |
| 159 | .bytesperline = 320, |
| 160 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 161 | .priv = PB0100_CROP_TO_VGA |
| 162 | }, |
| 163 | { |
| 164 | 352, |
| 165 | 288, |
| 166 | V4L2_PIX_FMT_SGRBG8, |
| 167 | V4L2_FIELD_NONE, |
| 168 | .sizeimage = 352 * 288, |
| 169 | .bytesperline = 352, |
| 170 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 171 | .priv = 0 |
| 172 | } |
| 173 | }; |
| 174 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 175 | static int pb0100_probe(struct sd *sd) |
| 176 | { |
| 177 | u16 sensor; |
| 178 | int i, err; |
| 179 | s32 *sensor_settings; |
| 180 | |
| 181 | err = stv06xx_read_sensor(sd, PB_IDENT, &sensor); |
| 182 | |
| 183 | if (err < 0) |
| 184 | return -ENODEV; |
| 185 | |
| 186 | if ((sensor >> 8) == 0x64) { |
| 187 | sensor_settings = kmalloc( |
Erik Andren | 766231a | 2008-12-31 14:33:53 -0300 | [diff] [blame] | 188 | ARRAY_SIZE(pb0100_ctrl) * sizeof(s32), |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 189 | GFP_KERNEL); |
| 190 | if (!sensor_settings) |
| 191 | return -ENOMEM; |
| 192 | |
| 193 | info("Photobit pb0100 sensor detected"); |
| 194 | |
Erik Andren | 766231a | 2008-12-31 14:33:53 -0300 | [diff] [blame] | 195 | sd->gspca_dev.cam.cam_mode = pb0100_mode; |
| 196 | sd->gspca_dev.cam.nmodes = ARRAY_SIZE(pb0100_mode); |
| 197 | sd->desc.ctrls = pb0100_ctrl; |
| 198 | sd->desc.nctrls = ARRAY_SIZE(pb0100_ctrl); |
| 199 | for (i = 0; i < sd->desc.nctrls; i++) |
| 200 | sensor_settings[i] = pb0100_ctrl[i].qctrl.default_value; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 201 | sd->sensor_priv = sensor_settings; |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | return -ENODEV; |
| 207 | } |
| 208 | |
| 209 | static int pb0100_start(struct sd *sd) |
| 210 | { |
Hans de Goede | c0b33bd | 2010-10-27 09:12:30 -0300 | [diff] [blame] | 211 | int err, packet_size, max_packet_size; |
| 212 | struct usb_host_interface *alt; |
| 213 | struct usb_interface *intf; |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 214 | struct cam *cam = &sd->gspca_dev.cam; |
| 215 | s32 *sensor_settings = sd->sensor_priv; |
| 216 | u32 mode = cam->cam_mode[sd->gspca_dev.curr_mode].priv; |
| 217 | |
Hans de Goede | c0b33bd | 2010-10-27 09:12:30 -0300 | [diff] [blame] | 218 | intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface); |
| 219 | alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt); |
| 220 | packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); |
| 221 | |
| 222 | /* If we don't have enough bandwidth use a lower framerate */ |
| 223 | max_packet_size = sd->sensor->max_packet_size[sd->gspca_dev.curr_mode]; |
| 224 | if (packet_size < max_packet_size) |
| 225 | stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1)); |
| 226 | else |
| 227 | stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(5)|BIT(3)|BIT(1)); |
| 228 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 229 | /* Setup sensor window */ |
| 230 | if (mode & PB0100_CROP_TO_VGA) { |
| 231 | stv06xx_write_sensor(sd, PB_RSTART, 30); |
| 232 | stv06xx_write_sensor(sd, PB_CSTART, 20); |
| 233 | stv06xx_write_sensor(sd, PB_RWSIZE, 240 - 1); |
| 234 | stv06xx_write_sensor(sd, PB_CWSIZE, 320 - 1); |
| 235 | } else { |
| 236 | stv06xx_write_sensor(sd, PB_RSTART, 8); |
| 237 | stv06xx_write_sensor(sd, PB_CSTART, 4); |
| 238 | stv06xx_write_sensor(sd, PB_RWSIZE, 288 - 1); |
| 239 | stv06xx_write_sensor(sd, PB_CWSIZE, 352 - 1); |
| 240 | } |
| 241 | |
| 242 | if (mode & PB0100_SUBSAMPLE) { |
| 243 | stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02); /* Wrong, FIXME */ |
| 244 | stv06xx_write_bridge(sd, STV_X_CTRL, 0x06); |
| 245 | |
| 246 | stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10); |
| 247 | } else { |
| 248 | stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01); |
| 249 | stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a); |
| 250 | /* larger -> slower */ |
| 251 | stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20); |
| 252 | } |
| 253 | |
| 254 | /* set_gain also sets red and blue balance */ |
| 255 | pb0100_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]); |
| 256 | pb0100_set_exposure(&sd->gspca_dev, sensor_settings[EXPOSURE_IDX]); |
| 257 | pb0100_set_autogain_target(&sd->gspca_dev, |
| 258 | sensor_settings[AUTOGAIN_TARGET_IDX]); |
| 259 | pb0100_set_autogain(&sd->gspca_dev, sensor_settings[AUTOGAIN_IDX]); |
| 260 | |
| 261 | err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)|BIT(1)); |
| 262 | PDEBUG(D_STREAM, "Started stream, status: %d", err); |
| 263 | |
| 264 | return (err < 0) ? err : 0; |
| 265 | } |
| 266 | |
| 267 | static int pb0100_stop(struct sd *sd) |
| 268 | { |
| 269 | int err; |
| 270 | |
| 271 | err = stv06xx_write_sensor(sd, PB_ABORTFRAME, 1); |
| 272 | |
| 273 | if (err < 0) |
| 274 | goto out; |
| 275 | |
| 276 | /* Set bit 1 to zero */ |
| 277 | err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)); |
| 278 | |
| 279 | PDEBUG(D_STREAM, "Halting stream"); |
| 280 | out: |
| 281 | return (err < 0) ? err : 0; |
| 282 | } |
| 283 | |
Erik Andren | d5b53f4 | 2009-01-07 06:09:27 -0300 | [diff] [blame] | 284 | static void pb0100_disconnect(struct sd *sd) |
| 285 | { |
| 286 | sd->sensor = NULL; |
| 287 | kfree(sd->sensor_priv); |
| 288 | } |
| 289 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 290 | /* FIXME: Sort the init commands out and put them into tables, |
| 291 | this is only for getting the camera to work */ |
| 292 | /* FIXME: No error handling for now, |
| 293 | add this once the init has been converted to proper tables */ |
| 294 | static int pb0100_init(struct sd *sd) |
| 295 | { |
| 296 | stv06xx_write_bridge(sd, STV_REG00, 1); |
| 297 | stv06xx_write_bridge(sd, STV_SCAN_RATE, 0); |
| 298 | |
| 299 | /* Reset sensor */ |
| 300 | stv06xx_write_sensor(sd, PB_RESET, 1); |
| 301 | stv06xx_write_sensor(sd, PB_RESET, 0); |
| 302 | |
| 303 | /* Disable chip */ |
| 304 | stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)); |
| 305 | |
| 306 | /* Gain stuff...*/ |
| 307 | stv06xx_write_sensor(sd, PB_PREADCTRL, BIT(12)|BIT(10)|BIT(6)); |
| 308 | stv06xx_write_sensor(sd, PB_ADCGLOBALGAIN, 12); |
| 309 | |
| 310 | /* Set up auto-exposure */ |
| 311 | /* ADC VREF_HI new setting for a transition |
| 312 | from the Expose1 to the Expose2 setting */ |
| 313 | stv06xx_write_sensor(sd, PB_R28, 12); |
| 314 | /* gain max for autoexposure */ |
| 315 | stv06xx_write_sensor(sd, PB_ADCMAXGAIN, 180); |
| 316 | /* gain min for autoexposure */ |
| 317 | stv06xx_write_sensor(sd, PB_ADCMINGAIN, 12); |
| 318 | /* Maximum frame integration time (programmed into R8) |
| 319 | allowed for auto-exposure routine */ |
| 320 | stv06xx_write_sensor(sd, PB_R54, 3); |
| 321 | /* Minimum frame integration time (programmed into R8) |
| 322 | allowed for auto-exposure routine */ |
| 323 | stv06xx_write_sensor(sd, PB_R55, 0); |
| 324 | stv06xx_write_sensor(sd, PB_UPDATEINT, 1); |
| 325 | /* R15 Expose0 (maximum that auto-exposure may use) */ |
| 326 | stv06xx_write_sensor(sd, PB_R15, 800); |
| 327 | /* R17 Expose2 (minimum that auto-exposure may use) */ |
| 328 | stv06xx_write_sensor(sd, PB_R17, 10); |
| 329 | |
| 330 | stv06xx_write_sensor(sd, PB_EXPGAIN, 0); |
| 331 | |
| 332 | /* 0x14 */ |
| 333 | stv06xx_write_sensor(sd, PB_VOFFSET, 0); |
| 334 | /* 0x0D */ |
| 335 | stv06xx_write_sensor(sd, PB_ADCGAINH, 11); |
| 336 | /* Set black level (important!) */ |
| 337 | stv06xx_write_sensor(sd, PB_ADCGAINL, 0); |
| 338 | |
| 339 | /* ??? */ |
| 340 | stv06xx_write_bridge(sd, STV_REG00, 0x11); |
| 341 | stv06xx_write_bridge(sd, STV_REG03, 0x45); |
| 342 | stv06xx_write_bridge(sd, STV_REG04, 0x07); |
| 343 | |
Erik Andren | 4c98834 | 2008-12-29 07:35:23 -0300 | [diff] [blame] | 344 | /* Scan/timing for the sensor */ |
| 345 | stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1)); |
| 346 | stv06xx_write_sensor(sd, PB_CFILLIN, 14); |
| 347 | stv06xx_write_sensor(sd, PB_VBL, 0); |
| 348 | stv06xx_write_sensor(sd, PB_FINTTIME, 0); |
| 349 | stv06xx_write_sensor(sd, PB_RINTTIME, 123); |
| 350 | |
| 351 | stv06xx_write_bridge(sd, STV_REG01, 0xc2); |
| 352 | stv06xx_write_bridge(sd, STV_REG02, 0xb0); |
| 353 | return 0; |
| 354 | } |
| 355 | |
| 356 | static int pb0100_dump(struct sd *sd) |
| 357 | { |
| 358 | return 0; |
| 359 | } |
| 360 | |
| 361 | static int pb0100_get_gain(struct gspca_dev *gspca_dev, __s32 *val) |
| 362 | { |
| 363 | struct sd *sd = (struct sd *) gspca_dev; |
| 364 | s32 *sensor_settings = sd->sensor_priv; |
| 365 | |
| 366 | *val = sensor_settings[GAIN_IDX]; |
| 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val) |
| 372 | { |
| 373 | int err; |
| 374 | struct sd *sd = (struct sd *) gspca_dev; |
| 375 | s32 *sensor_settings = sd->sensor_priv; |
| 376 | |
| 377 | if (sensor_settings[AUTOGAIN_IDX]) |
| 378 | return -EBUSY; |
| 379 | |
| 380 | sensor_settings[GAIN_IDX] = val; |
| 381 | err = stv06xx_write_sensor(sd, PB_G1GAIN, val); |
| 382 | if (!err) |
| 383 | err = stv06xx_write_sensor(sd, PB_G2GAIN, val); |
| 384 | PDEBUG(D_V4L2, "Set green gain to %d, status: %d", val, err); |
| 385 | |
| 386 | if (!err) |
| 387 | err = pb0100_set_red_balance(gspca_dev, |
| 388 | sensor_settings[RED_BALANCE_IDX]); |
| 389 | if (!err) |
| 390 | err = pb0100_set_blue_balance(gspca_dev, |
| 391 | sensor_settings[BLUE_BALANCE_IDX]); |
| 392 | |
| 393 | return err; |
| 394 | } |
| 395 | |
| 396 | static int pb0100_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val) |
| 397 | { |
| 398 | struct sd *sd = (struct sd *) gspca_dev; |
| 399 | s32 *sensor_settings = sd->sensor_priv; |
| 400 | |
| 401 | *val = sensor_settings[RED_BALANCE_IDX]; |
| 402 | |
| 403 | return 0; |
| 404 | } |
| 405 | |
| 406 | static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) |
| 407 | { |
| 408 | int err; |
| 409 | struct sd *sd = (struct sd *) gspca_dev; |
| 410 | s32 *sensor_settings = sd->sensor_priv; |
| 411 | |
| 412 | if (sensor_settings[AUTOGAIN_IDX]) |
| 413 | return -EBUSY; |
| 414 | |
| 415 | sensor_settings[RED_BALANCE_IDX] = val; |
| 416 | val += sensor_settings[GAIN_IDX]; |
| 417 | if (val < 0) |
| 418 | val = 0; |
| 419 | else if (val > 255) |
| 420 | val = 255; |
| 421 | |
| 422 | err = stv06xx_write_sensor(sd, PB_RGAIN, val); |
| 423 | PDEBUG(D_V4L2, "Set red gain to %d, status: %d", val, err); |
| 424 | |
| 425 | return err; |
| 426 | } |
| 427 | |
| 428 | static int pb0100_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val) |
| 429 | { |
| 430 | struct sd *sd = (struct sd *) gspca_dev; |
| 431 | s32 *sensor_settings = sd->sensor_priv; |
| 432 | |
| 433 | *val = sensor_settings[BLUE_BALANCE_IDX]; |
| 434 | |
| 435 | return 0; |
| 436 | } |
| 437 | |
| 438 | static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) |
| 439 | { |
| 440 | int err; |
| 441 | struct sd *sd = (struct sd *) gspca_dev; |
| 442 | s32 *sensor_settings = sd->sensor_priv; |
| 443 | |
| 444 | if (sensor_settings[AUTOGAIN_IDX]) |
| 445 | return -EBUSY; |
| 446 | |
| 447 | sensor_settings[BLUE_BALANCE_IDX] = val; |
| 448 | val += sensor_settings[GAIN_IDX]; |
| 449 | if (val < 0) |
| 450 | val = 0; |
| 451 | else if (val > 255) |
| 452 | val = 255; |
| 453 | |
| 454 | err = stv06xx_write_sensor(sd, PB_BGAIN, val); |
| 455 | PDEBUG(D_V4L2, "Set blue gain to %d, status: %d", val, err); |
| 456 | |
| 457 | return err; |
| 458 | } |
| 459 | |
| 460 | static int pb0100_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) |
| 461 | { |
| 462 | struct sd *sd = (struct sd *) gspca_dev; |
| 463 | s32 *sensor_settings = sd->sensor_priv; |
| 464 | |
| 465 | *val = sensor_settings[EXPOSURE_IDX]; |
| 466 | |
| 467 | return 0; |
| 468 | } |
| 469 | |
| 470 | static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val) |
| 471 | { |
| 472 | int err; |
| 473 | struct sd *sd = (struct sd *) gspca_dev; |
| 474 | s32 *sensor_settings = sd->sensor_priv; |
| 475 | |
| 476 | if (sensor_settings[AUTOGAIN_IDX]) |
| 477 | return -EBUSY; |
| 478 | |
| 479 | sensor_settings[EXPOSURE_IDX] = val; |
| 480 | err = stv06xx_write_sensor(sd, PB_RINTTIME, val); |
| 481 | PDEBUG(D_V4L2, "Set exposure to %d, status: %d", val, err); |
| 482 | |
| 483 | return err; |
| 484 | } |
| 485 | |
| 486 | static int pb0100_get_autogain(struct gspca_dev *gspca_dev, __s32 *val) |
| 487 | { |
| 488 | struct sd *sd = (struct sd *) gspca_dev; |
| 489 | s32 *sensor_settings = sd->sensor_priv; |
| 490 | |
| 491 | *val = sensor_settings[AUTOGAIN_IDX]; |
| 492 | |
| 493 | return 0; |
| 494 | } |
| 495 | |
| 496 | static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val) |
| 497 | { |
| 498 | int err; |
| 499 | struct sd *sd = (struct sd *) gspca_dev; |
| 500 | s32 *sensor_settings = sd->sensor_priv; |
| 501 | |
| 502 | sensor_settings[AUTOGAIN_IDX] = val; |
| 503 | if (sensor_settings[AUTOGAIN_IDX]) { |
| 504 | if (sensor_settings[NATURAL_IDX]) |
| 505 | val = BIT(6)|BIT(4)|BIT(0); |
| 506 | else |
| 507 | val = BIT(4)|BIT(0); |
| 508 | } else |
| 509 | val = 0; |
| 510 | |
| 511 | err = stv06xx_write_sensor(sd, PB_EXPGAIN, val); |
| 512 | PDEBUG(D_V4L2, "Set autogain to %d (natural: %d), status: %d", |
| 513 | sensor_settings[AUTOGAIN_IDX], sensor_settings[NATURAL_IDX], |
| 514 | err); |
| 515 | |
| 516 | return err; |
| 517 | } |
| 518 | |
| 519 | static int pb0100_get_autogain_target(struct gspca_dev *gspca_dev, __s32 *val) |
| 520 | { |
| 521 | struct sd *sd = (struct sd *) gspca_dev; |
| 522 | s32 *sensor_settings = sd->sensor_priv; |
| 523 | |
| 524 | *val = sensor_settings[AUTOGAIN_TARGET_IDX]; |
| 525 | |
| 526 | return 0; |
| 527 | } |
| 528 | |
| 529 | static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val) |
| 530 | { |
| 531 | int err, totalpixels, brightpixels, darkpixels; |
| 532 | struct sd *sd = (struct sd *) gspca_dev; |
| 533 | s32 *sensor_settings = sd->sensor_priv; |
| 534 | |
| 535 | sensor_settings[AUTOGAIN_TARGET_IDX] = val; |
| 536 | |
| 537 | /* Number of pixels counted by the sensor when subsampling the pixels. |
| 538 | * Slightly larger than the real value to avoid oscillation */ |
| 539 | totalpixels = gspca_dev->width * gspca_dev->height; |
| 540 | totalpixels = totalpixels/(8*8) + totalpixels/(64*64); |
| 541 | |
| 542 | brightpixels = (totalpixels * val) >> 8; |
| 543 | darkpixels = totalpixels - brightpixels; |
| 544 | err = stv06xx_write_sensor(sd, PB_R21, brightpixels); |
| 545 | if (!err) |
| 546 | err = stv06xx_write_sensor(sd, PB_R22, darkpixels); |
| 547 | |
| 548 | PDEBUG(D_V4L2, "Set autogain target to %d, status: %d", val, err); |
| 549 | |
| 550 | return err; |
| 551 | } |
| 552 | |
| 553 | static int pb0100_get_natural(struct gspca_dev *gspca_dev, __s32 *val) |
| 554 | { |
| 555 | struct sd *sd = (struct sd *) gspca_dev; |
| 556 | s32 *sensor_settings = sd->sensor_priv; |
| 557 | |
| 558 | *val = sensor_settings[NATURAL_IDX]; |
| 559 | |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | static int pb0100_set_natural(struct gspca_dev *gspca_dev, __s32 val) |
| 564 | { |
| 565 | struct sd *sd = (struct sd *) gspca_dev; |
| 566 | s32 *sensor_settings = sd->sensor_priv; |
| 567 | |
| 568 | sensor_settings[NATURAL_IDX] = val; |
| 569 | |
| 570 | return pb0100_set_autogain(gspca_dev, sensor_settings[AUTOGAIN_IDX]); |
| 571 | } |