783 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)4 *5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>6 */7 8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt9 10#define MODULE_NAME "etoms"11 12#include "gspca.h"13 14MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");15MODULE_DESCRIPTION("Etoms USB Camera Driver");16MODULE_LICENSE("GPL");17 18/* specific webcam descriptor */19struct sd {20 struct gspca_dev gspca_dev; /* !! must be the first item */21 22 unsigned char autogain;23 24 char sensor;25#define SENSOR_PAS106 026#define SENSOR_TAS5130CXX 127 signed char ag_cnt;28#define AG_CNT_START 1329};30 31static const struct v4l2_pix_format vga_mode[] = {32 {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,33 .bytesperline = 320,34 .sizeimage = 320 * 240,35 .colorspace = V4L2_COLORSPACE_SRGB,36 .priv = 1},37/* {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,38 .bytesperline = 640,39 .sizeimage = 640 * 480,40 .colorspace = V4L2_COLORSPACE_SRGB,41 .priv = 0}, */42};43 44static const struct v4l2_pix_format sif_mode[] = {45 {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,46 .bytesperline = 176,47 .sizeimage = 176 * 144,48 .colorspace = V4L2_COLORSPACE_SRGB,49 .priv = 1},50 {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,51 .bytesperline = 352,52 .sizeimage = 352 * 288,53 .colorspace = V4L2_COLORSPACE_SRGB,54 .priv = 0},55};56 57#define ETOMS_ALT_SIZE_1000 1258 59#define ET_GPIO_DIR_CTRL 0x04 /* Control IO bit[0..5] (0 in 1 out) */60#define ET_GPIO_OUT 0x05 /* Only IO data */61#define ET_GPIO_IN 0x06 /* Read Only IO data */62#define ET_RESET_ALL 0x0363#define ET_ClCK 0x0164#define ET_CTRL 0x02 /* enable i2c OutClck Powerdown mode */65 66#define ET_COMP 0x12 /* Compression register */67#define ET_MAXQt 0x1368#define ET_MINQt 0x1469#define ET_COMP_VAL0 0x0270#define ET_COMP_VAL1 0x0371 72#define ET_REG1d 0x1d73#define ET_REG1e 0x1e74#define ET_REG1f 0x1f75#define ET_REG20 0x2076#define ET_REG21 0x2177#define ET_REG22 0x2278#define ET_REG23 0x2379#define ET_REG24 0x2480#define ET_REG25 0x2581/* base registers for luma calculation */82#define ET_LUMA_CENTER 0x3983 84#define ET_G_RED 0x4d85#define ET_G_GREEN1 0x4e86#define ET_G_BLUE 0x4f87#define ET_G_GREEN2 0x5088#define ET_G_GR_H 0x5189#define ET_G_GB_H 0x5290 91#define ET_O_RED 0x3492#define ET_O_GREEN1 0x3593#define ET_O_BLUE 0x3694#define ET_O_GREEN2 0x3795 96#define ET_SYNCHRO 0x6897#define ET_STARTX 0x6998#define ET_STARTY 0x6a99#define ET_WIDTH_LOW 0x6b100#define ET_HEIGTH_LOW 0x6c101#define ET_W_H_HEIGTH 0x6d102 103#define ET_REG6e 0x6e /* OBW */104#define ET_REG6f 0x6f /* OBW */105#define ET_REG70 0x70 /* OBW_AWB */106#define ET_REG71 0x71 /* OBW_AWB */107#define ET_REG72 0x72 /* OBW_AWB */108#define ET_REG73 0x73 /* Clkdelay ns */109#define ET_REG74 0x74 /* test pattern */110#define ET_REG75 0x75 /* test pattern */111 112#define ET_I2C_CLK 0x8c113#define ET_PXL_CLK 0x60114 115#define ET_I2C_BASE 0x89116#define ET_I2C_COUNT 0x8a117#define ET_I2C_PREFETCH 0x8b118#define ET_I2C_REG 0x88119#define ET_I2C_DATA7 0x87120#define ET_I2C_DATA6 0x86121#define ET_I2C_DATA5 0x85122#define ET_I2C_DATA4 0x84123#define ET_I2C_DATA3 0x83124#define ET_I2C_DATA2 0x82125#define ET_I2C_DATA1 0x81126#define ET_I2C_DATA0 0x80127 128#define PAS106_REG2 0x02 /* pxlClk = systemClk/(reg2) */129#define PAS106_REG3 0x03 /* line/frame H [11..4] */130#define PAS106_REG4 0x04 /* line/frame L [3..0] */131#define PAS106_REG5 0x05 /* exposure time line offset(default 5) */132#define PAS106_REG6 0x06 /* exposure time pixel offset(default 6) */133#define PAS106_REG7 0x07 /* signbit Dac (default 0) */134#define PAS106_REG9 0x09135#define PAS106_REG0e 0x0e /* global gain [4..0](default 0x0e) */136#define PAS106_REG13 0x13 /* end i2c write */137 138static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };139 140static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };141 142static const __u8 I2c3[] = { 0x12, 0x05 };143 144static const __u8 I2c4[] = { 0x41, 0x08 };145 146/* read 'len' bytes to gspca_dev->usb_buf */147static void reg_r(struct gspca_dev *gspca_dev,148 __u16 index,149 __u16 len)150{151 struct usb_device *dev = gspca_dev->dev;152 153 if (len > USB_BUF_SZ) {154 gspca_err(gspca_dev, "reg_r: buffer overflow\n");155 return;156 }157 158 usb_control_msg(dev,159 usb_rcvctrlpipe(dev, 0),160 0,161 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,162 0,163 index, gspca_dev->usb_buf, len, 500);164 gspca_dbg(gspca_dev, D_USBI, "reg read [%02x] -> %02x ..\n",165 index, gspca_dev->usb_buf[0]);166}167 168static void reg_w_val(struct gspca_dev *gspca_dev,169 __u16 index,170 __u8 val)171{172 struct usb_device *dev = gspca_dev->dev;173 174 gspca_dev->usb_buf[0] = val;175 usb_control_msg(dev,176 usb_sndctrlpipe(dev, 0),177 0,178 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,179 0,180 index, gspca_dev->usb_buf, 1, 500);181}182 183static void reg_w(struct gspca_dev *gspca_dev,184 __u16 index,185 const __u8 *buffer,186 __u16 len)187{188 struct usb_device *dev = gspca_dev->dev;189 190 if (len > USB_BUF_SZ) {191 pr_err("reg_w: buffer overflow\n");192 return;193 }194 gspca_dbg(gspca_dev, D_USBO, "reg write [%02x] = %02x..\n",195 index, *buffer);196 197 memcpy(gspca_dev->usb_buf, buffer, len);198 usb_control_msg(dev,199 usb_sndctrlpipe(dev, 0),200 0,201 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,202 0, index, gspca_dev->usb_buf, len, 500);203}204 205static int i2c_w(struct gspca_dev *gspca_dev,206 __u8 reg,207 const __u8 *buffer,208 int len, __u8 mode)209{210 /* buffer should be [D0..D7] */211 __u8 ptchcount;212 213 /* set the base address */214 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);215 /* sensor base for the pas106 */216 /* set count and prefetch */217 ptchcount = ((len & 0x07) << 4) | (mode & 0x03);218 reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);219 /* set the register base */220 reg_w_val(gspca_dev, ET_I2C_REG, reg);221 while (--len >= 0)222 reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);223 return 0;224}225 226static int i2c_r(struct gspca_dev *gspca_dev,227 __u8 reg)228{229 /* set the base address */230 reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);231 /* sensor base for the pas106 */232 /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */233 reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);234 reg_w_val(gspca_dev, ET_I2C_REG, reg); /* set the register base */235 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02); /* prefetch */236 reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);237 reg_r(gspca_dev, ET_I2C_DATA0, 1); /* read one byte */238 return 0;239}240 241static int Et_WaitStatus(struct gspca_dev *gspca_dev)242{243 int retry = 10;244 245 while (retry--) {246 reg_r(gspca_dev, ET_ClCK, 1);247 if (gspca_dev->usb_buf[0] != 0)248 return 1;249 }250 return 0;251}252 253static int et_video(struct gspca_dev *gspca_dev,254 int on)255{256 int ret;257 258 reg_w_val(gspca_dev, ET_GPIO_OUT,259 on ? 0x10 /* startvideo - set Bit5 */260 : 0); /* stopvideo */261 ret = Et_WaitStatus(gspca_dev);262 if (ret != 0)263 gspca_err(gspca_dev, "timeout video on/off\n");264 return ret;265}266 267static void Et_init2(struct gspca_dev *gspca_dev)268{269 __u8 value;270 static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };271 272 gspca_dbg(gspca_dev, D_STREAM, "Open Init2 ET\n");273 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);274 reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);275 reg_r(gspca_dev, ET_GPIO_IN, 1);276 reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */277 reg_w_val(gspca_dev, ET_CTRL, 0x1b);278 279 /* compression et subsampling */280 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)281 value = ET_COMP_VAL1; /* 320 */282 else283 value = ET_COMP_VAL0; /* 640 */284 reg_w_val(gspca_dev, ET_COMP, value);285 reg_w_val(gspca_dev, ET_MAXQt, 0x1f);286 reg_w_val(gspca_dev, ET_MINQt, 0x04);287 /* undocumented registers */288 reg_w_val(gspca_dev, ET_REG1d, 0xff);289 reg_w_val(gspca_dev, ET_REG1e, 0xff);290 reg_w_val(gspca_dev, ET_REG1f, 0xff);291 reg_w_val(gspca_dev, ET_REG20, 0x35);292 reg_w_val(gspca_dev, ET_REG21, 0x01);293 reg_w_val(gspca_dev, ET_REG22, 0x00);294 reg_w_val(gspca_dev, ET_REG23, 0xff);295 reg_w_val(gspca_dev, ET_REG24, 0xff);296 reg_w_val(gspca_dev, ET_REG25, 0x0f);297 /* colors setting */298 reg_w_val(gspca_dev, 0x30, 0x11); /* 0x30 */299 reg_w_val(gspca_dev, 0x31, 0x40);300 reg_w_val(gspca_dev, 0x32, 0x00);301 reg_w_val(gspca_dev, ET_O_RED, 0x00); /* 0x34 */302 reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);303 reg_w_val(gspca_dev, ET_O_BLUE, 0x00);304 reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);305 /*************/306 reg_w_val(gspca_dev, ET_G_RED, 0x80); /* 0x4d */307 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);308 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);309 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);310 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);311 reg_w_val(gspca_dev, ET_G_GB_H, 0x00); /* 0x52 */312 /* Window control registers */313 reg_w_val(gspca_dev, 0x61, 0x80); /* use cmc_out */314 reg_w_val(gspca_dev, 0x62, 0x02);315 reg_w_val(gspca_dev, 0x63, 0x03);316 reg_w_val(gspca_dev, 0x64, 0x14);317 reg_w_val(gspca_dev, 0x65, 0x0e);318 reg_w_val(gspca_dev, 0x66, 0x02);319 reg_w_val(gspca_dev, 0x67, 0x02);320 321 /**************************************/322 reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f); /* 0x68 */323 reg_w_val(gspca_dev, ET_STARTX, 0x69); /* 0x6a //0x69 */324 reg_w_val(gspca_dev, ET_STARTY, 0x0d); /* 0x0d //0x0c */325 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);326 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);327 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60); /* 6d */328 reg_w_val(gspca_dev, ET_REG6e, 0x86);329 reg_w_val(gspca_dev, ET_REG6f, 0x01);330 reg_w_val(gspca_dev, ET_REG70, 0x26);331 reg_w_val(gspca_dev, ET_REG71, 0x7a);332 reg_w_val(gspca_dev, ET_REG72, 0x01);333 /* Clock Pattern registers ***************** */334 reg_w_val(gspca_dev, ET_REG73, 0x00);335 reg_w_val(gspca_dev, ET_REG74, 0x18); /* 0x28 */336 reg_w_val(gspca_dev, ET_REG75, 0x0f); /* 0x01 */337 /**********************************************/338 reg_w_val(gspca_dev, 0x8a, 0x20);339 reg_w_val(gspca_dev, 0x8d, 0x0f);340 reg_w_val(gspca_dev, 0x8e, 0x08);341 /**************************************/342 reg_w_val(gspca_dev, 0x03, 0x08);343 reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);344 reg_w_val(gspca_dev, 0x81, 0xff);345 reg_w_val(gspca_dev, 0x80, 0x00);346 reg_w_val(gspca_dev, 0x81, 0xff);347 reg_w_val(gspca_dev, 0x80, 0x20);348 reg_w_val(gspca_dev, 0x03, 0x01);349 reg_w_val(gspca_dev, 0x03, 0x00);350 reg_w_val(gspca_dev, 0x03, 0x08);351 /********************************************/352 353/* reg_r(gspca_dev, ET_I2C_BASE, 1);354 always 0x40 as the pas106 ??? */355 /* set the sensor */356 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)357 value = 0x04; /* 320 */358 else /* 640 */359 value = 0x1e; /* 0x17 * setting PixelClock360 * 0x03 mean 24/(3+1) = 6 Mhz361 * 0x05 -> 24/(5+1) = 4 Mhz362 * 0x0b -> 24/(11+1) = 2 Mhz363 * 0x17 -> 24/(23+1) = 1 Mhz364 */365 reg_w_val(gspca_dev, ET_PXL_CLK, value);366 /* now set by fifo the FormatLine setting */367 reg_w(gspca_dev, 0x62, FormLine, 6);368 369 /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */370 reg_w_val(gspca_dev, 0x81, 0x47); /* 0x47; */371 reg_w_val(gspca_dev, 0x80, 0x40); /* 0x40; */372 /* Pedro change */373 /* Brightness change Brith+ decrease value */374 /* Brigth- increase value */375 /* original value = 0x70; */376 reg_w_val(gspca_dev, 0x81, 0x30); /* 0x20; - set brightness */377 reg_w_val(gspca_dev, 0x80, 0x20); /* 0x20; */378}379 380static void setbrightness(struct gspca_dev *gspca_dev, s32 val)381{382 int i;383 384 for (i = 0; i < 4; i++)385 reg_w_val(gspca_dev, ET_O_RED + i, val);386}387 388static void setcontrast(struct gspca_dev *gspca_dev, s32 val)389{390 __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };391 392 memset(RGBG, val, sizeof(RGBG) - 2);393 reg_w(gspca_dev, ET_G_RED, RGBG, 6);394}395 396static void setcolors(struct gspca_dev *gspca_dev, s32 val)397{398 struct sd *sd = (struct sd *) gspca_dev;399 __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };400 __u8 i2cflags = 0x01;401 /* __u8 green = 0; */402 403 I2cc[3] = val; /* red */404 I2cc[0] = 15 - val; /* blue */405 /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */406 /* I2cc[1] = I2cc[2] = green; */407 if (sd->sensor == SENSOR_PAS106) {408 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);409 i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);410 }411}412 413static s32 getcolors(struct gspca_dev *gspca_dev)414{415 struct sd *sd = (struct sd *) gspca_dev;416 417 if (sd->sensor == SENSOR_PAS106) {418/* i2c_r(gspca_dev, PAS106_REG9); * blue */419 i2c_r(gspca_dev, PAS106_REG9 + 3); /* red */420 return gspca_dev->usb_buf[0] & 0x0f;421 }422 return 0;423}424 425static void setautogain(struct gspca_dev *gspca_dev)426{427 struct sd *sd = (struct sd *) gspca_dev;428 429 if (sd->autogain)430 sd->ag_cnt = AG_CNT_START;431 else432 sd->ag_cnt = -1;433}434 435static void Et_init1(struct gspca_dev *gspca_dev)436{437 __u8 value;438/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */439 __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };440 /* try 1/120 0x6d 0xcd 0x40 */441/* __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};442 * 1/60000 hmm ?? */443 444 gspca_dbg(gspca_dev, D_STREAM, "Open Init1 ET\n\n");445 reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);446 reg_r(gspca_dev, ET_GPIO_IN, 1);447 reg_w_val(gspca_dev, ET_RESET_ALL, 1);448 reg_w_val(gspca_dev, ET_RESET_ALL, 0);449 reg_w_val(gspca_dev, ET_ClCK, 0x10);450 reg_w_val(gspca_dev, ET_CTRL, 0x19);451 /* compression et subsampling */452 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)453 value = ET_COMP_VAL1;454 else455 value = ET_COMP_VAL0;456 gspca_dbg(gspca_dev, D_STREAM, "Open mode %d Compression %d\n",457 gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,458 value);459 reg_w_val(gspca_dev, ET_COMP, value);460 reg_w_val(gspca_dev, ET_MAXQt, 0x1d);461 reg_w_val(gspca_dev, ET_MINQt, 0x02);462 /* undocumented registers */463 reg_w_val(gspca_dev, ET_REG1d, 0xff);464 reg_w_val(gspca_dev, ET_REG1e, 0xff);465 reg_w_val(gspca_dev, ET_REG1f, 0xff);466 reg_w_val(gspca_dev, ET_REG20, 0x35);467 reg_w_val(gspca_dev, ET_REG21, 0x01);468 reg_w_val(gspca_dev, ET_REG22, 0x00);469 reg_w_val(gspca_dev, ET_REG23, 0xf7);470 reg_w_val(gspca_dev, ET_REG24, 0xff);471 reg_w_val(gspca_dev, ET_REG25, 0x07);472 /* colors setting */473 reg_w_val(gspca_dev, ET_G_RED, 0x80);474 reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);475 reg_w_val(gspca_dev, ET_G_BLUE, 0x80);476 reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);477 reg_w_val(gspca_dev, ET_G_GR_H, 0x00);478 reg_w_val(gspca_dev, ET_G_GB_H, 0x00);479 /* Window control registers */480 reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);481 reg_w_val(gspca_dev, ET_STARTX, 0x56); /* 0x56 */482 reg_w_val(gspca_dev, ET_STARTY, 0x05); /* 0x04 */483 reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);484 reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);485 reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);486 reg_w_val(gspca_dev, ET_REG6e, 0x86);487 reg_w_val(gspca_dev, ET_REG6f, 0x01);488 reg_w_val(gspca_dev, ET_REG70, 0x86);489 reg_w_val(gspca_dev, ET_REG71, 0x14);490 reg_w_val(gspca_dev, ET_REG72, 0x00);491 /* Clock Pattern registers */492 reg_w_val(gspca_dev, ET_REG73, 0x00);493 reg_w_val(gspca_dev, ET_REG74, 0x00);494 reg_w_val(gspca_dev, ET_REG75, 0x0a);495 reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);496 reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);497 /* set the sensor */498 if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {499 I2c0[0] = 0x06;500 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);501 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);502 value = 0x06;503 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);504 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);505 /* value = 0x1f; */506 value = 0x04;507 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);508 } else {509 I2c0[0] = 0x0a;510 511 i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);512 i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);513 value = 0x0a;514 i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);515 i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);516 value = 0x04;517 /* value = 0x10; */518 i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);519 /* bit 2 enable bit 1:2 select 0 1 2 3520 value = 0x07; * curve 0 *521 i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);522 */523 }524 525/* value = 0x01; */526/* value = 0x22; */527/* i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */528 /* magnetude and sign bit for DAC */529 i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);530 /* now set by fifo the whole colors setting */531 reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);532 setcolors(gspca_dev, getcolors(gspca_dev));533}534 535/* this function is called at probe time */536static int sd_config(struct gspca_dev *gspca_dev,537 const struct usb_device_id *id)538{539 struct sd *sd = (struct sd *) gspca_dev;540 struct cam *cam;541 542 cam = &gspca_dev->cam;543 sd->sensor = id->driver_info;544 if (sd->sensor == SENSOR_PAS106) {545 cam->cam_mode = sif_mode;546 cam->nmodes = ARRAY_SIZE(sif_mode);547 } else {548 cam->cam_mode = vga_mode;549 cam->nmodes = ARRAY_SIZE(vga_mode);550 }551 sd->ag_cnt = -1;552 return 0;553}554 555/* this function is called at probe and resume time */556static int sd_init(struct gspca_dev *gspca_dev)557{558 struct sd *sd = (struct sd *) gspca_dev;559 560 if (sd->sensor == SENSOR_PAS106)561 Et_init1(gspca_dev);562 else563 Et_init2(gspca_dev);564 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);565 et_video(gspca_dev, 0); /* video off */566 return 0;567}568 569/* -- start the camera -- */570static int sd_start(struct gspca_dev *gspca_dev)571{572 struct sd *sd = (struct sd *) gspca_dev;573 574 if (sd->sensor == SENSOR_PAS106)575 Et_init1(gspca_dev);576 else577 Et_init2(gspca_dev);578 579 setautogain(gspca_dev);580 581 reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);582 et_video(gspca_dev, 1); /* video on */583 return 0;584}585 586static void sd_stopN(struct gspca_dev *gspca_dev)587{588 et_video(gspca_dev, 0); /* video off */589}590 591static __u8 Et_getgainG(struct gspca_dev *gspca_dev)592{593 struct sd *sd = (struct sd *) gspca_dev;594 595 if (sd->sensor == SENSOR_PAS106) {596 i2c_r(gspca_dev, PAS106_REG0e);597 gspca_dbg(gspca_dev, D_CONF, "Etoms gain G %d\n",598 gspca_dev->usb_buf[0]);599 return gspca_dev->usb_buf[0];600 }601 return 0x1f;602}603 604static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)605{606 struct sd *sd = (struct sd *) gspca_dev;607 608 if (sd->sensor == SENSOR_PAS106) {609 __u8 i2cflags = 0x01;610 611 i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);612 i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);613 }614}615 616#define BLIMIT(bright) \617 (u8)((bright > 0x1f) ? 0x1f : ((bright < 4) ? 3 : bright))618#define LIMIT(color) \619 (u8)((color > 0xff) ? 0xff : ((color < 0) ? 0 : color))620 621static void do_autogain(struct gspca_dev *gspca_dev)622{623 struct sd *sd = (struct sd *) gspca_dev;624 __u8 luma;625 __u8 luma_mean = 128;626 __u8 luma_delta = 20;627 __u8 spring = 4;628 int Gbright;629 __u8 r, g, b;630 631 if (sd->ag_cnt < 0)632 return;633 if (--sd->ag_cnt >= 0)634 return;635 sd->ag_cnt = AG_CNT_START;636 637 Gbright = Et_getgainG(gspca_dev);638 reg_r(gspca_dev, ET_LUMA_CENTER, 4);639 g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;640 r = gspca_dev->usb_buf[1];641 b = gspca_dev->usb_buf[2];642 r = ((r << 8) - (r << 4) - (r << 3)) >> 10;643 b = ((b << 7) >> 10);644 g = ((g << 9) + (g << 7) + (g << 5)) >> 10;645 luma = LIMIT(r + g + b);646 gspca_dbg(gspca_dev, D_FRAM, "Etoms luma G %d\n", luma);647 if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {648 Gbright += (luma_mean - luma) >> spring;649 Gbright = BLIMIT(Gbright);650 gspca_dbg(gspca_dev, D_FRAM, "Etoms Gbright %d\n", Gbright);651 Et_setgainG(gspca_dev, (__u8) Gbright);652 }653}654 655#undef BLIMIT656#undef LIMIT657 658static void sd_pkt_scan(struct gspca_dev *gspca_dev,659 u8 *data, /* isoc packet */660 int len) /* iso packet length */661{662 int seqframe;663 664 seqframe = data[0] & 0x3f;665 len = (int) (((data[0] & 0xc0) << 2) | data[1]);666 if (seqframe == 0x3f) {667 gspca_dbg(gspca_dev, D_FRAM,668 "header packet found datalength %d !!\n", len);669 gspca_dbg(gspca_dev, D_FRAM, "G %d R %d G %d B %d",670 data[2], data[3], data[4], data[5]);671 data += 30;672 /* don't change datalength as the chips provided it */673 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);674 gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);675 return;676 }677 if (len) {678 data += 8;679 gspca_frame_add(gspca_dev, INTER_PACKET, data, len);680 } else { /* Drop Packet */681 gspca_dev->last_packet_type = DISCARD_PACKET;682 }683}684 685static int sd_s_ctrl(struct v4l2_ctrl *ctrl)686{687 struct gspca_dev *gspca_dev =688 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);689 struct sd *sd = (struct sd *)gspca_dev;690 691 gspca_dev->usb_err = 0;692 693 if (!gspca_dev->streaming)694 return 0;695 696 switch (ctrl->id) {697 case V4L2_CID_BRIGHTNESS:698 setbrightness(gspca_dev, ctrl->val);699 break;700 case V4L2_CID_CONTRAST:701 setcontrast(gspca_dev, ctrl->val);702 break;703 case V4L2_CID_SATURATION:704 setcolors(gspca_dev, ctrl->val);705 break;706 case V4L2_CID_AUTOGAIN:707 sd->autogain = ctrl->val;708 setautogain(gspca_dev);709 break;710 }711 return gspca_dev->usb_err;712}713 714static const struct v4l2_ctrl_ops sd_ctrl_ops = {715 .s_ctrl = sd_s_ctrl,716};717 718static int sd_init_controls(struct gspca_dev *gspca_dev)719{720 struct sd *sd = (struct sd *)gspca_dev;721 struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;722 723 gspca_dev->vdev.ctrl_handler = hdl;724 v4l2_ctrl_handler_init(hdl, 4);725 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,726 V4L2_CID_BRIGHTNESS, 1, 127, 1, 63);727 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,728 V4L2_CID_CONTRAST, 0, 255, 1, 127);729 if (sd->sensor == SENSOR_PAS106)730 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,731 V4L2_CID_SATURATION, 0, 15, 1, 7);732 v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,733 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);734 if (hdl->error) {735 pr_err("Could not initialize controls\n");736 return hdl->error;737 }738 return 0;739}740 741/* sub-driver description */742static const struct sd_desc sd_desc = {743 .name = MODULE_NAME,744 .config = sd_config,745 .init = sd_init,746 .init_controls = sd_init_controls,747 .start = sd_start,748 .stopN = sd_stopN,749 .pkt_scan = sd_pkt_scan,750 .dq_callback = do_autogain,751};752 753/* -- module initialisation -- */754static const struct usb_device_id device_table[] = {755 {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},756 {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},757 {}758};759 760MODULE_DEVICE_TABLE(usb, device_table);761 762/* -- device connect -- */763static int sd_probe(struct usb_interface *intf,764 const struct usb_device_id *id)765{766 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),767 THIS_MODULE);768}769 770static struct usb_driver sd_driver = {771 .name = MODULE_NAME,772 .id_table = device_table,773 .probe = sd_probe,774 .disconnect = gspca_disconnect,775#ifdef CONFIG_PM776 .suspend = gspca_suspend,777 .resume = gspca_resume,778 .reset_resume = gspca_resume,779#endif780};781 782module_usb_driver(sd_driver);783