728 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * ToupTek UCMOS / AmScope MU series camera driver4 * TODO: contrast with ScopeTek / AmScope MDC cameras5 *6 * Copyright (C) 2012-2014 John McMaster <JohnDMcMaster@gmail.com>7 *8 * Special thanks to Bushing for helping with the decrypt algorithm and9 * Sean O'Sullivan / the Rensselaer Center for Open Source10 * Software (RCOS) for helping me learn kernel development11 */12 13#include "gspca.h"14 15#define MODULE_NAME "touptek"16 17MODULE_AUTHOR("John McMaster");18MODULE_DESCRIPTION("ToupTek UCMOS / Amscope MU microscope camera driver");19MODULE_LICENSE("GPL");20 21/*22 * Exposure reg is linear with exposure time23 * Exposure (sec), E (reg)24 * 0.000400, 0x000225 * 0.001000, 0x000526 * 0.005000, 0x001927 * 0.020000, 0x006428 * 0.080000, 0x019029 * 0.400000, 0x07D030 * 1.000000, 0x138831 * 2.000000, 0x271032 *33 * Three gain stages34 * 0x1000: master channel enable bit35 * 0x007F: low gain bits36 * 0x0080: medium gain bit37 * 0x0100: high gain bit38 * gain = enable * (1 + regH) * (1 + regM) * z * regL39 *40 * Gain implementation41 * Want to do something similar to mt9v011.c's set_balance42 *43 * Gain does not vary with resolution (checked 640x480 vs 1600x1200)44 *45 * Constant derivation:46 *47 * Raw data:48 * Gain, GTOP, B, R, GBOT49 * 1.00, 0x105C, 0x1068, 0x10C8, 0x105C50 * 1.20, 0x106E, 0x107E, 0x10D6, 0x106E51 * 1.40, 0x10C0, 0x10CA, 0x10E5, 0x10C052 * 1.60, 0x10C9, 0x10D4, 0x10F3, 0x10C953 * 1.80, 0x10D2, 0x10DE, 0x11C1, 0x10D254 * 2.00, 0x10DC, 0x10E9, 0x11C8, 0x10DC55 * 2.20, 0x10E5, 0x10F3, 0x11CF, 0x10E556 * 2.40, 0x10EE, 0x10FE, 0x11D7, 0x10EE57 * 2.60, 0x10F7, 0x11C4, 0x11DE, 0x10F758 * 2.80, 0x11C0, 0x11CA, 0x11E5, 0x11C059 * 3.00, 0x11C5, 0x11CF, 0x11ED, 0x11C560 *61 * zR = 0.006960594315245477862 * about 3/431 = 0.006960556844547563563 * zB = 0.009569597069597070364 * about 6/627 = 0.009569377990430621665 * zG = 0.01088932806324110766 * about 6/551 = 0.01088929219600725967 * about 10 bits for constant + 7 bits for value => at least 17 bit68 * intermediate with 32 bit ints should be fine for overflow etc69 * Essentially gains are in range 0-0x001FF70 *71 * However, V4L expects a main gain channel + R and B balance72 * To keep things simple for now saturate the values of balance is too high/low73 * This isn't really ideal but easy way to fit the Linux model74 *75 * Converted using gain model turns out to be quite linear:76 * Gain, GTOP, B, R, GBOT77 * 1.00, 92, 104, 144, 9278 * 1.20, 110, 126, 172, 11079 * 1.40, 128, 148, 202, 12880 * 1.60, 146, 168, 230, 14681 * 1.80, 164, 188, 260, 16482 * 2.00, 184, 210, 288, 18483 * 2.20, 202, 230, 316, 20284 * 2.40, 220, 252, 348, 22085 * 2.60, 238, 272, 376, 23886 * 2.80, 256, 296, 404, 25687 * 3.00, 276, 316, 436, 27688 *89 * Maximum gain is 0x7FF * 2 * 2 => 0x1FFC (8188)90 * or about 13 effective bits of gain91 * The highest the commercial driver goes in my setup 43692 * However, because could *maybe* damage circuits93 * limit the gain until have a reason to go higher94 * Solution: gain clipped and warning emitted95 */96#define GAIN_MAX 51197 98/* Frame sync is a short read */99#define BULK_SIZE 0x4000100 101/* MT9E001 reg names to give a rough approximation */102#define REG_COARSE_INTEGRATION_TIME_ 0x3012103#define REG_GROUPED_PARAMETER_HOLD_ 0x3022104#define REG_MODE_SELECT 0x0100105#define REG_OP_SYS_CLK_DIV 0x030A106#define REG_VT_SYS_CLK_DIV 0x0302107#define REG_PRE_PLL_CLK_DIV 0x0304108#define REG_VT_PIX_CLK_DIV 0x0300109#define REG_OP_PIX_CLK_DIV 0x0308110#define REG_PLL_MULTIPLIER 0x0306111#define REG_COARSE_INTEGRATION_TIME_ 0x3012112#define REG_FRAME_LENGTH_LINES 0x0340113#define REG_FRAME_LENGTH_LINES_ 0x300A114#define REG_GREEN1_GAIN 0x3056115#define REG_GREEN2_GAIN 0x305C116#define REG_GROUPED_PARAMETER_HOLD 0x0104117#define REG_LINE_LENGTH_PCK_ 0x300C118#define REG_MODE_SELECT 0x0100119#define REG_PLL_MULTIPLIER 0x0306120#define REG_READ_MODE 0x3040121#define REG_BLUE_GAIN 0x3058122#define REG_RED_GAIN 0x305A123#define REG_RESET_REGISTER 0x301A124#define REG_SCALE_M 0x0404125#define REG_SCALING_MODE 0x0400126#define REG_SOFTWARE_RESET 0x0103127#define REG_X_ADDR_END 0x0348128#define REG_X_ADDR_START 0x0344129#define REG_X_ADDR_START 0x0344130#define REG_X_OUTPUT_SIZE 0x034C131#define REG_Y_ADDR_END 0x034A132#define REG_Y_ADDR_START 0x0346133#define REG_Y_OUTPUT_SIZE 0x034E134 135 136/* specific webcam descriptor */137struct sd {138 struct gspca_dev gspca_dev; /* !! must be the first item */139 /* How many bytes this frame */140 unsigned int this_f;141 142 /*143 Device has separate gains for each Bayer quadrant144 V4L supports master gain which is referenced to G1/G2 and supplies145 individual balance controls for R/B146 */147 struct v4l2_ctrl *blue;148 struct v4l2_ctrl *red;149};150 151/* Used to simplify reg write error handling */152struct cmd {153 u16 value;154 u16 index;155};156 157static const struct v4l2_pix_format vga_mode[] = {158 {800, 600,159 V4L2_PIX_FMT_SGRBG8,160 V4L2_FIELD_NONE,161 .bytesperline = 800,162 .sizeimage = 800 * 600,163 .colorspace = V4L2_COLORSPACE_SRGB},164 {1600, 1200,165 V4L2_PIX_FMT_SGRBG8,166 V4L2_FIELD_NONE,167 .bytesperline = 1600,168 .sizeimage = 1600 * 1200,169 .colorspace = V4L2_COLORSPACE_SRGB},170 {3264, 2448,171 V4L2_PIX_FMT_SGRBG8,172 V4L2_FIELD_NONE,173 .bytesperline = 3264,174 .sizeimage = 3264 * 2448,175 .colorspace = V4L2_COLORSPACE_SRGB},176};177 178/*179 * As there's no known frame sync, the only way to keep synced is to try hard180 * to never miss any packets181 */182#if MAX_NURBS < 4183#error "Not enough URBs in the gspca table"184#endif185 186static int val_reply(struct gspca_dev *gspca_dev, const char *reply, int rc)187{188 if (rc < 0) {189 gspca_err(gspca_dev, "reply has error %d\n", rc);190 return -EIO;191 }192 if (rc != 1) {193 gspca_err(gspca_dev, "Bad reply size %d\n", rc);194 return -EIO;195 }196 if (reply[0] != 0x08) {197 gspca_err(gspca_dev, "Bad reply 0x%02x\n", (int)reply[0]);198 return -EIO;199 }200 return 0;201}202 203static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index)204{205 char *buff = gspca_dev->usb_buf;206 int rc;207 208 gspca_dbg(gspca_dev, D_USBO,209 "reg_w bReq=0x0B, bReqT=0xC0, wVal=0x%04X, wInd=0x%04X\n\n",210 value, index);211 rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),212 0x0B, 0xC0, value, index, buff, 1, 500);213 gspca_dbg(gspca_dev, D_USBO, "rc=%d, ret={0x%02x}\n", rc, (int)buff[0]);214 if (rc < 0) {215 gspca_err(gspca_dev, "Failed reg_w(0x0B, 0xC0, 0x%04X, 0x%04X) w/ rc %d\n",216 value, index, rc);217 gspca_dev->usb_err = rc;218 return;219 }220 if (val_reply(gspca_dev, buff, rc)) {221 gspca_err(gspca_dev, "Bad reply to reg_w(0x0B, 0xC0, 0x%04X, 0x%04X\n",222 value, index);223 gspca_dev->usb_err = -EIO;224 }225}226 227static void reg_w_buf(struct gspca_dev *gspca_dev,228 const struct cmd *p, int l)229{230 do {231 reg_w(gspca_dev, p->value, p->index);232 p++;233 } while (--l > 0);234}235 236static void setexposure(struct gspca_dev *gspca_dev, s32 val)237{238 u16 value;239 unsigned int w = gspca_dev->pixfmt.width;240 241 if (w == 800)242 value = val * 5;243 else if (w == 1600)244 value = val * 3;245 else if (w == 3264)246 value = val * 3 / 2;247 else {248 gspca_err(gspca_dev, "Invalid width %u\n", w);249 gspca_dev->usb_err = -EINVAL;250 return;251 }252 gspca_dbg(gspca_dev, D_STREAM, "exposure: 0x%04X ms\n\n", value);253 /* Wonder if there's a good reason for sending it twice */254 /* probably not but leave it in because...why not */255 reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_);256 reg_w(gspca_dev, value, REG_COARSE_INTEGRATION_TIME_);257}258 259static int gainify(int in)260{261 /*262 * TODO: check if there are any issues with corner cases263 * 0x000 (0):0x07F (127): regL264 * 0x080 (128) - 0x0FF (255): regM, regL265 * 0x100 (256) - max: regH, regM, regL266 */267 if (in <= 0x7F)268 return 0x1000 | in;269 else if (in <= 0xFF)270 return 0x1080 | in / 2;271 else272 return 0x1180 | in / 4;273}274 275static void setggain(struct gspca_dev *gspca_dev, u16 global_gain)276{277 u16 normalized;278 279 normalized = gainify(global_gain);280 gspca_dbg(gspca_dev, D_STREAM, "gain G1/G2 (0x%04X): 0x%04X (src 0x%04X)\n\n",281 REG_GREEN1_GAIN,282 normalized, global_gain);283 284 reg_w(gspca_dev, normalized, REG_GREEN1_GAIN);285 reg_w(gspca_dev, normalized, REG_GREEN2_GAIN);286}287 288static void setbgain(struct gspca_dev *gspca_dev,289 u16 gain, u16 global_gain)290{291 u16 normalized;292 293 normalized = global_gain +294 ((u32)global_gain) * gain / GAIN_MAX;295 if (normalized > GAIN_MAX) {296 gspca_dbg(gspca_dev, D_STREAM, "Truncating blue 0x%04X w/ value 0x%04X\n\n",297 GAIN_MAX, normalized);298 normalized = GAIN_MAX;299 }300 normalized = gainify(normalized);301 gspca_dbg(gspca_dev, D_STREAM, "gain B (0x%04X): 0x%04X w/ source 0x%04X\n\n",302 REG_BLUE_GAIN, normalized, gain);303 304 reg_w(gspca_dev, normalized, REG_BLUE_GAIN);305}306 307static void setrgain(struct gspca_dev *gspca_dev,308 u16 gain, u16 global_gain)309{310 u16 normalized;311 312 normalized = global_gain +313 ((u32)global_gain) * gain / GAIN_MAX;314 if (normalized > GAIN_MAX) {315 gspca_dbg(gspca_dev, D_STREAM, "Truncating gain 0x%04X w/ value 0x%04X\n\n",316 GAIN_MAX, normalized);317 normalized = GAIN_MAX;318 }319 normalized = gainify(normalized);320 gspca_dbg(gspca_dev, D_STREAM, "gain R (0x%04X): 0x%04X w / source 0x%04X\n\n",321 REG_RED_GAIN, normalized, gain);322 323 reg_w(gspca_dev, normalized, REG_RED_GAIN);324}325 326static void configure_wh(struct gspca_dev *gspca_dev)327{328 unsigned int w = gspca_dev->pixfmt.width;329 330 gspca_dbg(gspca_dev, D_STREAM, "configure_wh\n\n");331 332 if (w == 800) {333 static const struct cmd reg_init_res[] = {334 {0x0060, REG_X_ADDR_START},335 {0x0CD9, REG_X_ADDR_END},336 {0x0036, REG_Y_ADDR_START},337 {0x098F, REG_Y_ADDR_END},338 {0x07C7, REG_READ_MODE},339 };340 341 reg_w_buf(gspca_dev,342 reg_init_res, ARRAY_SIZE(reg_init_res));343 } else if (w == 1600) {344 static const struct cmd reg_init_res[] = {345 {0x009C, REG_X_ADDR_START},346 {0x0D19, REG_X_ADDR_END},347 {0x0068, REG_Y_ADDR_START},348 {0x09C5, REG_Y_ADDR_END},349 {0x06C3, REG_READ_MODE},350 };351 352 reg_w_buf(gspca_dev,353 reg_init_res, ARRAY_SIZE(reg_init_res));354 } else if (w == 3264) {355 static const struct cmd reg_init_res[] = {356 {0x00E8, REG_X_ADDR_START},357 {0x0DA7, REG_X_ADDR_END},358 {0x009E, REG_Y_ADDR_START},359 {0x0A2D, REG_Y_ADDR_END},360 {0x0241, REG_READ_MODE},361 };362 363 reg_w_buf(gspca_dev,364 reg_init_res, ARRAY_SIZE(reg_init_res));365 } else {366 gspca_err(gspca_dev, "bad width %u\n", w);367 gspca_dev->usb_err = -EINVAL;368 return;369 }370 371 reg_w(gspca_dev, 0x0000, REG_SCALING_MODE);372 reg_w(gspca_dev, 0x0010, REG_SCALE_M);373 reg_w(gspca_dev, w, REG_X_OUTPUT_SIZE);374 reg_w(gspca_dev, gspca_dev->pixfmt.height, REG_Y_OUTPUT_SIZE);375 376 if (w == 800) {377 reg_w(gspca_dev, 0x0384, REG_FRAME_LENGTH_LINES_);378 reg_w(gspca_dev, 0x0960, REG_LINE_LENGTH_PCK_);379 } else if (w == 1600) {380 reg_w(gspca_dev, 0x0640, REG_FRAME_LENGTH_LINES_);381 reg_w(gspca_dev, 0x0FA0, REG_LINE_LENGTH_PCK_);382 } else if (w == 3264) {383 reg_w(gspca_dev, 0x0B4B, REG_FRAME_LENGTH_LINES_);384 reg_w(gspca_dev, 0x1F40, REG_LINE_LENGTH_PCK_);385 } else {386 gspca_err(gspca_dev, "bad width %u\n", w);387 gspca_dev->usb_err = -EINVAL;388 return;389 }390}391 392/* Packets that were encrypted, no idea if the grouping is significant */393static void configure_encrypted(struct gspca_dev *gspca_dev)394{395 static const struct cmd reg_init_begin[] = {396 {0x0100, REG_SOFTWARE_RESET},397 {0x0000, REG_MODE_SELECT},398 {0x0100, REG_GROUPED_PARAMETER_HOLD},399 {0x0004, REG_VT_PIX_CLK_DIV},400 {0x0001, REG_VT_SYS_CLK_DIV},401 {0x0008, REG_OP_PIX_CLK_DIV},402 {0x0001, REG_OP_SYS_CLK_DIV},403 {0x0004, REG_PRE_PLL_CLK_DIV},404 {0x0040, REG_PLL_MULTIPLIER},405 {0x0000, REG_GROUPED_PARAMETER_HOLD},406 {0x0100, REG_GROUPED_PARAMETER_HOLD},407 };408 static const struct cmd reg_init_end[] = {409 {0x0000, REG_GROUPED_PARAMETER_HOLD},410 {0x0301, 0x31AE},411 {0x0805, 0x3064},412 {0x0071, 0x3170},413 {0x10DE, REG_RESET_REGISTER},414 {0x0000, REG_MODE_SELECT},415 {0x0010, REG_PLL_MULTIPLIER},416 {0x0100, REG_MODE_SELECT},417 };418 419 gspca_dbg(gspca_dev, D_STREAM, "Encrypted begin, w = %u\n\n",420 gspca_dev->pixfmt.width);421 reg_w_buf(gspca_dev, reg_init_begin, ARRAY_SIZE(reg_init_begin));422 configure_wh(gspca_dev);423 reg_w_buf(gspca_dev, reg_init_end, ARRAY_SIZE(reg_init_end));424 reg_w(gspca_dev, 0x0100, REG_GROUPED_PARAMETER_HOLD);425 reg_w(gspca_dev, 0x0000, REG_GROUPED_PARAMETER_HOLD);426 427 gspca_dbg(gspca_dev, D_STREAM, "Encrypted end\n\n");428}429 430static int configure(struct gspca_dev *gspca_dev)431{432 int rc;433 char *buff = gspca_dev->usb_buf;434 435 gspca_dbg(gspca_dev, D_STREAM, "configure()\n\n");436 437 /*438 * First driver sets a sort of encryption key439 * A number of futur requests of this type have wValue and wIndex440 * encrypted as follows:441 * -Compute key = this wValue rotate left by 4 bits442 * (decrypt.py rotates right because we are decrypting)443 * -Later packets encrypt packets by XOR'ing with key444 * XOR encrypt/decrypt is symmetrical445 * wValue, and wIndex are encrypted446 * bRequest is not and bRequestType is always 0xC0447 * This allows resyncing if key is unknown?448 * By setting 0 we XOR with 0 and the shifting and XOR drops out449 */450 rc = usb_control_msg(gspca_dev->dev, usb_rcvctrlpipe(gspca_dev->dev, 0),451 0x16, 0xC0, 0x0000, 0x0000, buff, 2, 500);452 if (val_reply(gspca_dev, buff, rc)) {453 gspca_err(gspca_dev, "failed key req\n");454 return -EIO;455 }456 457 /*458 * Next does some sort of 2 packet challenge / response459 * evidence suggests its an Atmel I2C crypto part but nobody cares to460 * look461 * (to make sure its not cloned hardware?)462 * Ignore: I want to work with their hardware, not clone it463 * 16 bytes out challenge, requestType: 0x40464 * 16 bytes in response, requestType: 0xC0465 */466 467 rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),468 0x01, 0x40, 0x0001, 0x000F, NULL, 0, 500);469 if (rc < 0) {470 gspca_err(gspca_dev, "failed to replay packet 176 w/ rc %d\n",471 rc);472 return rc;473 }474 475 rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),476 0x01, 0x40, 0x0000, 0x000F, NULL, 0, 500);477 if (rc < 0) {478 gspca_err(gspca_dev, "failed to replay packet 178 w/ rc %d\n",479 rc);480 return rc;481 }482 483 rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),484 0x01, 0x40, 0x0001, 0x000F, NULL, 0, 500);485 if (rc < 0) {486 gspca_err(gspca_dev, "failed to replay packet 180 w/ rc %d\n",487 rc);488 return rc;489 }490 491 /*492 * Serial number? Doesn't seem to be required493 * cam1: \xE6\x0D\x00\x00, cam2: \x70\x19\x00\x00494 * rc = usb_control_msg(gspca_dev->dev,495 * usb_rcvctrlpipe(gspca_dev->dev, 0),496 * 0x20, 0xC0, 0x0000, 0x0000, buff, 4, 500);497 */498 499 /* Large (EEPROM?) read, skip it since no idea what to do with it */500 gspca_dev->usb_err = 0;501 configure_encrypted(gspca_dev);502 if (gspca_dev->usb_err)503 return gspca_dev->usb_err;504 505 /* Omitted this by accident, does not work without it */506 rc = usb_control_msg(gspca_dev->dev, usb_sndctrlpipe(gspca_dev->dev, 0),507 0x01, 0x40, 0x0003, 0x000F, NULL, 0, 500);508 if (rc < 0) {509 gspca_err(gspca_dev, "failed to replay final packet w/ rc %d\n",510 rc);511 return rc;512 }513 514 gspca_dbg(gspca_dev, D_STREAM, "Configure complete\n\n");515 return 0;516}517 518static int sd_config(struct gspca_dev *gspca_dev,519 const struct usb_device_id *id)520{521 gspca_dev->cam.cam_mode = vga_mode;522 gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);523 524 /* Yes we want URBs and we want them now! */525 gspca_dev->cam.no_urb_create = 0;526 gspca_dev->cam.bulk_nurbs = 4;527 /* Largest size the windows driver uses */528 gspca_dev->cam.bulk_size = BULK_SIZE;529 /* Def need to use bulk transfers */530 gspca_dev->cam.bulk = 1;531 532 return 0;533}534 535static int sd_start(struct gspca_dev *gspca_dev)536{537 struct sd *sd = (struct sd *) gspca_dev;538 int rc;539 540 sd->this_f = 0;541 542 rc = configure(gspca_dev);543 if (rc < 0) {544 gspca_err(gspca_dev, "Failed configure\n");545 return rc;546 }547 /* First two frames have messed up gains548 Drop them to avoid special cases in user apps? */549 return 0;550}551 552static void sd_pkt_scan(struct gspca_dev *gspca_dev,553 u8 *data, /* isoc packet */554 int len) /* iso packet length */555{556 struct sd *sd = (struct sd *) gspca_dev;557 558 if (len != BULK_SIZE) {559 /* can we finish a frame? */560 if (sd->this_f + len == gspca_dev->pixfmt.sizeimage) {561 gspca_frame_add(gspca_dev, LAST_PACKET, data, len);562 gspca_dbg(gspca_dev, D_FRAM, "finish frame sz %u/%u w/ len %u\n\n",563 sd->this_f, gspca_dev->pixfmt.sizeimage, len);564 /* lost some data, discard the frame */565 } else {566 gspca_frame_add(gspca_dev, DISCARD_PACKET, NULL, 0);567 gspca_dbg(gspca_dev, D_FRAM, "abort frame sz %u/%u w/ len %u\n\n",568 sd->this_f, gspca_dev->pixfmt.sizeimage, len);569 }570 sd->this_f = 0;571 } else {572 if (sd->this_f == 0)573 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);574 else575 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);576 sd->this_f += len;577 }578}579 580static int sd_init(struct gspca_dev *gspca_dev)581{582 return 0;583}584 585static int sd_s_ctrl(struct v4l2_ctrl *ctrl)586{587 struct gspca_dev *gspca_dev =588 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);589 struct sd *sd = (struct sd *) gspca_dev;590 591 gspca_dev->usb_err = 0;592 593 if (!gspca_dev->streaming)594 return 0;595 596 switch (ctrl->id) {597 case V4L2_CID_EXPOSURE:598 setexposure(gspca_dev, ctrl->val);599 break;600 case V4L2_CID_GAIN:601 /* gspca_dev->gain automatically updated */602 setggain(gspca_dev, gspca_dev->gain->val);603 break;604 case V4L2_CID_BLUE_BALANCE:605 sd->blue->val = ctrl->val;606 setbgain(gspca_dev, sd->blue->val, gspca_dev->gain->val);607 break;608 case V4L2_CID_RED_BALANCE:609 sd->red->val = ctrl->val;610 setrgain(gspca_dev, sd->red->val, gspca_dev->gain->val);611 break;612 }613 return gspca_dev->usb_err;614}615 616static const struct v4l2_ctrl_ops sd_ctrl_ops = {617 .s_ctrl = sd_s_ctrl,618};619 620static int sd_init_controls(struct gspca_dev *gspca_dev)621{622 struct sd *sd = (struct sd *) gspca_dev;623 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;624 625 gspca_dev->vdev.ctrl_handler = hdl;626 v4l2_ctrl_handler_init(hdl, 4);627 628 gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,629 /* Mostly limited by URB timeouts */630 /* XXX: make dynamic based on frame rate? */631 V4L2_CID_EXPOSURE, 0, 800, 1, 350);632 gspca_dev->gain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,633 V4L2_CID_GAIN, 0, 511, 1, 128);634 sd->blue = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,635 V4L2_CID_BLUE_BALANCE, 0, 1023, 1, 80);636 sd->red = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,637 V4L2_CID_RED_BALANCE, 0, 1023, 1, 295);638 639 if (hdl->error) {640 gspca_err(gspca_dev, "Could not initialize controls\n");641 return hdl->error;642 }643 return 0;644}645 646/* sub-driver description */647static const struct sd_desc sd_desc = {648 .name = MODULE_NAME,649 .config = sd_config,650 .init = sd_init,651 .init_controls = sd_init_controls,652 .start = sd_start,653 .pkt_scan = sd_pkt_scan,654};655 656/* Table of supported USB devices */657static const struct usb_device_id device_table[] = {658 /* Commented out devices should be related */659 /* AS: AmScope, TT: ToupTek */660 /* { USB_DEVICE(0x0547, 0x6035) }, TT UCMOS00350KPA */661 /* { USB_DEVICE(0x0547, 0x6130) }, TT UCMOS01300KPA */662 /* { USB_DEVICE(0x0547, 0x6200) }, TT UCMOS02000KPA */663 /* { USB_DEVICE(0x0547, 0x6310) }, TT UCMOS03100KPA */664 /* { USB_DEVICE(0x0547, 0x6510) }, TT UCMOS05100KPA */665 /* { USB_DEVICE(0x0547, 0x6800) }, TT UCMOS08000KPA */666 /* { USB_DEVICE(0x0547, 0x6801) }, TT UCMOS08000KPB */667 { USB_DEVICE(0x0547, 0x6801) }, /* TT UCMOS08000KPB, AS MU800 */668 /* { USB_DEVICE(0x0547, 0x6900) }, TT UCMOS09000KPA */669 /* { USB_DEVICE(0x0547, 0x6901) }, TT UCMOS09000KPB */670 /* { USB_DEVICE(0x0547, 0x6010) }, TT UCMOS10000KPA */671 /* { USB_DEVICE(0x0547, 0x6014) }, TT UCMOS14000KPA */672 /* { USB_DEVICE(0x0547, 0x6131) }, TT UCMOS01300KMA */673 /* { USB_DEVICE(0x0547, 0x6511) }, TT UCMOS05100KMA */674 /* { USB_DEVICE(0x0547, 0x8080) }, TT UHCCD00800KPA */675 /* { USB_DEVICE(0x0547, 0x8140) }, TT UHCCD01400KPA */676 /* { USB_DEVICE(0x0547, 0x8141) }, TT EXCCD01400KPA */677 /* { USB_DEVICE(0x0547, 0x8200) }, TT UHCCD02000KPA */678 /* { USB_DEVICE(0x0547, 0x8201) }, TT UHCCD02000KPB */679 /* { USB_DEVICE(0x0547, 0x8310) }, TT UHCCD03100KPA */680 /* { USB_DEVICE(0x0547, 0x8500) }, TT UHCCD05000KPA */681 /* { USB_DEVICE(0x0547, 0x8510) }, TT UHCCD05100KPA */682 /* { USB_DEVICE(0x0547, 0x8600) }, TT UHCCD06000KPA */683 /* { USB_DEVICE(0x0547, 0x8800) }, TT UHCCD08000KPA */684 /* { USB_DEVICE(0x0547, 0x8315) }, TT UHCCD03150KPA */685 /* { USB_DEVICE(0x0547, 0x7800) }, TT UHCCD00800KMA */686 /* { USB_DEVICE(0x0547, 0x7140) }, TT UHCCD01400KMA */687 /* { USB_DEVICE(0x0547, 0x7141) }, TT UHCCD01400KMB */688 /* { USB_DEVICE(0x0547, 0x7200) }, TT UHCCD02000KMA */689 /* { USB_DEVICE(0x0547, 0x7315) }, TT UHCCD03150KMA */690 { }691};692MODULE_DEVICE_TABLE(usb, device_table);693 694static int sd_probe(struct usb_interface *intf,695 const struct usb_device_id *id)696{697 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),698 THIS_MODULE);699}700 701static struct usb_driver sd_driver = {702 .name = MODULE_NAME,703 .id_table = device_table,704 .probe = sd_probe,705 .disconnect = gspca_disconnect,706#ifdef CONFIG_PM707 .suspend = gspca_suspend,708 .resume = gspca_resume,709#endif710};711 712static int __init sd_mod_init(void)713{714 int ret;715 716 ret = usb_register(&sd_driver);717 if (ret < 0)718 return ret;719 return 0;720}721static void __exit sd_mod_exit(void)722{723 usb_deregister(&sd_driver);724}725 726module_init(sd_mod_init);727module_exit(sd_mod_exit);728