LXR linux/drivers/media/video/gspca/etoms.c

   1/*
   2 * Etoms Et61x151 GPL Linux driver by Michel Xhaard (09/09/2004)
   3 *
   4 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 */
  20
  21#define MODULE_NAME "etoms"
  22
  23#include "gspca.h"
  24
  25MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  26MODULE_DESCRIPTION("Etoms USB Camera Driver");
  27MODULE_LICENSE("GPL");
  28
  29/* specific webcam descriptor */
  30struct sd {
  31        struct gspca_dev gspca_dev;     /* !! must be the first item */
  32
  33        unsigned char brightness;
  34        unsigned char contrast;
  35        unsigned char colors;
  36        unsigned char autogain;
  37
  38        char sensor;
  39#define SENSOR_PAS106 0
  40#define SENSOR_TAS5130CXX 1
  41        signed char ag_cnt;
  42#define AG_CNT_START 13
  43};
  44
  45/* V4L2 controls supported by the driver */
  46static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  47static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  48static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  49static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  50static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
  51static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
  52static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  53static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  54
  55static struct ctrl sd_ctrls[] = {
  56        {
  57         {
  58          .id = V4L2_CID_BRIGHTNESS,
  59          .type = V4L2_CTRL_TYPE_INTEGER,
  60          .name = "Brightness",
  61          .minimum = 1,
  62          .maximum = 127,
  63          .step = 1,
  64#define BRIGHTNESS_DEF 63
  65          .default_value = BRIGHTNESS_DEF,
  66          },
  67         .set = sd_setbrightness,
  68         .get = sd_getbrightness,
  69         },
  70        {
  71         {
  72          .id = V4L2_CID_CONTRAST,
  73          .type = V4L2_CTRL_TYPE_INTEGER,
  74          .name = "Contrast",
  75          .minimum = 0,
  76          .maximum = 255,
  77          .step = 1,
  78#define CONTRAST_DEF 127
  79          .default_value = CONTRAST_DEF,
  80          },
  81         .set = sd_setcontrast,
  82         .get = sd_getcontrast,
  83         },
  84#define COLOR_IDX 2
  85        {
  86         {
  87          .id = V4L2_CID_SATURATION,
  88          .type = V4L2_CTRL_TYPE_INTEGER,
  89          .name = "Color",
  90          .minimum = 0,
  91          .maximum = 15,
  92          .step = 1,
  93#define COLOR_DEF 7
  94          .default_value = COLOR_DEF,
  95          },
  96         .set = sd_setcolors,
  97         .get = sd_getcolors,
  98         },
  99        {
 100         {
 101          .id = V4L2_CID_AUTOGAIN,
 102          .type = V4L2_CTRL_TYPE_BOOLEAN,
 103          .name = "Auto Gain",
 104          .minimum = 0,
 105          .maximum = 1,
 106          .step = 1,
 107#define AUTOGAIN_DEF 1
 108          .default_value = AUTOGAIN_DEF,
 109          },
 110         .set = sd_setautogain,
 111         .get = sd_getautogain,
 112         },
 113};
 114
 115static const struct v4l2_pix_format vga_mode[] = {
 116        {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 117                .bytesperline = 320,
 118                .sizeimage = 320 * 240,
 119                .colorspace = V4L2_COLORSPACE_SRGB,
 120                .priv = 1},
 121/*      {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 122                .bytesperline = 640,
 123                .sizeimage = 640 * 480,
 124                .colorspace = V4L2_COLORSPACE_SRGB,
 125                .priv = 0}, */
 126};
 127
 128static const struct v4l2_pix_format sif_mode[] = {
 129        {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 130                .bytesperline = 176,
 131                .sizeimage = 176 * 144,
 132                .colorspace = V4L2_COLORSPACE_SRGB,
 133                .priv = 1},
 134        {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 135                .bytesperline = 352,
 136                .sizeimage = 352 * 288,
 137                .colorspace = V4L2_COLORSPACE_SRGB,
 138                .priv = 0},
 139};
 140
 141#define ETOMS_ALT_SIZE_1000   12
 142
 143#define ET_GPIO_DIR_CTRL 0x04   /* Control IO bit[0..5] (0 in  1 out) */
 144#define ET_GPIO_OUT 0x05        /* Only IO data */
 145#define ET_GPIO_IN 0x06         /* Read Only IO data */
 146#define ET_RESET_ALL 0x03
 147#define ET_ClCK 0x01
 148#define ET_CTRL 0x02            /* enable i2c OutClck Powerdown mode */
 149
 150#define ET_COMP 0x12            /* Compression register */
 151#define ET_MAXQt 0x13
 152#define ET_MINQt 0x14
 153#define ET_COMP_VAL0 0x02
 154#define ET_COMP_VAL1 0x03
 155
 156#define ET_REG1d 0x1d
 157#define ET_REG1e 0x1e
 158#define ET_REG1f 0x1f
 159#define ET_REG20 0x20
 160#define ET_REG21 0x21
 161#define ET_REG22 0x22
 162#define ET_REG23 0x23
 163#define ET_REG24 0x24
 164#define ET_REG25 0x25
 165/* base registers for luma calculation */
 166#define ET_LUMA_CENTER 0x39
 167
 168#define ET_G_RED 0x4d
 169#define ET_G_GREEN1 0x4e
 170#define ET_G_BLUE 0x4f
 171#define ET_G_GREEN2 0x50
 172#define ET_G_GR_H 0x51
 173#define ET_G_GB_H 0x52
 174
 175#define ET_O_RED 0x34
 176#define ET_O_GREEN1 0x35
 177#define ET_O_BLUE 0x36
 178#define ET_O_GREEN2 0x37
 179
 180#define ET_SYNCHRO 0x68
 181#define ET_STARTX 0x69
 182#define ET_STARTY 0x6a
 183#define ET_WIDTH_LOW 0x6b
 184#define ET_HEIGTH_LOW 0x6c
 185#define ET_W_H_HEIGTH 0x6d
 186
 187#define ET_REG6e 0x6e           /* OBW */
 188#define ET_REG6f 0x6f           /* OBW */
 189#define ET_REG70 0x70           /* OBW_AWB */
 190#define ET_REG71 0x71           /* OBW_AWB */
 191#define ET_REG72 0x72           /* OBW_AWB */
 192#define ET_REG73 0x73           /* Clkdelay ns */
 193#define ET_REG74 0x74           /* test pattern */
 194#define ET_REG75 0x75           /* test pattern */
 195
 196#define ET_I2C_CLK 0x8c
 197#define ET_PXL_CLK 0x60
 198
 199#define ET_I2C_BASE 0x89
 200#define ET_I2C_COUNT 0x8a
 201#define ET_I2C_PREFETCH 0x8b
 202#define ET_I2C_REG 0x88
 203#define ET_I2C_DATA7 0x87
 204#define ET_I2C_DATA6 0x86
 205#define ET_I2C_DATA5 0x85
 206#define ET_I2C_DATA4 0x84
 207#define ET_I2C_DATA3 0x83
 208#define ET_I2C_DATA2 0x82
 209#define ET_I2C_DATA1 0x81
 210#define ET_I2C_DATA0 0x80
 211
 212#define PAS106_REG2 0x02        /* pxlClk = systemClk/(reg2) */
 213#define PAS106_REG3 0x03        /* line/frame H [11..4] */
 214#define PAS106_REG4 0x04        /* line/frame L [3..0] */
 215#define PAS106_REG5 0x05        /* exposure time line offset(default 5) */
 216#define PAS106_REG6 0x06        /* exposure time pixel offset(default 6) */
 217#define PAS106_REG7 0x07        /* signbit Dac (default 0) */
 218#define PAS106_REG9 0x09
 219#define PAS106_REG0e 0x0e       /* global gain [4..0](default 0x0e) */
 220#define PAS106_REG13 0x13       /* end i2c write */
 221
 222static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 223
 224static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
 225
 226static const __u8 I2c3[] = { 0x12, 0x05 };
 227
 228static const __u8 I2c4[] = { 0x41, 0x08 };
 229
 230/* read 'len' bytes to gspca_dev->usb_buf */
 231static void reg_r(struct gspca_dev *gspca_dev,
 232                  __u16 index,
 233                  __u16 len)
 234{
 235        struct usb_device *dev = gspca_dev->dev;
 236
 237#ifdef GSPCA_DEBUG
 238        if (len > USB_BUF_SZ) {
 239                err("reg_r: buffer overflow");
 240                return;
 241        }
 242#endif
 243        usb_control_msg(dev,
 244                        usb_rcvctrlpipe(dev, 0),
 245                        0,
 246                        USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 247                        0,
 248                        index, gspca_dev->usb_buf, len, 500);
 249        PDEBUG(D_USBI, "reg read [%02x] -> %02x ..",
 250                        index, gspca_dev->usb_buf[0]);
 251}
 252
 253static void reg_w_val(struct gspca_dev *gspca_dev,
 254                        __u16 index,
 255                        __u8 val)
 256{
 257        struct usb_device *dev = gspca_dev->dev;
 258
 259        gspca_dev->usb_buf[0] = val;
 260        usb_control_msg(dev,
 261                        usb_sndctrlpipe(dev, 0),
 262                        0,
 263                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 264                        0,
 265                        index, gspca_dev->usb_buf, 1, 500);
 266}
 267
 268static void reg_w(struct gspca_dev *gspca_dev,
 269                  __u16 index,
 270                  const __u8 *buffer,
 271                  __u16 len)
 272{
 273        struct usb_device *dev = gspca_dev->dev;
 274
 275#ifdef GSPCA_DEBUG
 276        if (len > USB_BUF_SZ) {
 277                err("reg_w: buffer overflow");
 278                return;
 279        }
 280        PDEBUG(D_USBO, "reg write [%02x] = %02x..", index, *buffer);
 281#endif
 282        memcpy(gspca_dev->usb_buf, buffer, len);
 283        usb_control_msg(dev,
 284                        usb_sndctrlpipe(dev, 0),
 285                        0,
 286                        USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 287                        0, index, gspca_dev->usb_buf, len, 500);
 288}
 289
 290static int i2c_w(struct gspca_dev *gspca_dev,
 291                 __u8 reg,
 292                 const __u8 *buffer,
 293                 int len, __u8 mode)
 294{
 295        /* buffer should be [D0..D7] */
 296        __u8 ptchcount;
 297
 298        /* set the base address */
 299        reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 300                                         /* sensor base for the pas106 */
 301        /* set count and prefetch */
 302        ptchcount = ((len & 0x07) << 4) | (mode & 0x03);
 303        reg_w_val(gspca_dev, ET_I2C_COUNT, ptchcount);
 304        /* set the register base */
 305        reg_w_val(gspca_dev, ET_I2C_REG, reg);
 306        while (--len >= 0)
 307                reg_w_val(gspca_dev, ET_I2C_DATA0 + len, buffer[len]);
 308        return 0;
 309}
 310
 311static int i2c_r(struct gspca_dev *gspca_dev,
 312                        __u8 reg)
 313{
 314        /* set the base address */
 315        reg_w_val(gspca_dev, ET_I2C_BASE, 0x40);
 316                                        /* sensor base for the pas106 */
 317        /* set count and prefetch (cnd: 4 bits - mode: 4 bits) */
 318        reg_w_val(gspca_dev, ET_I2C_COUNT, 0x11);
 319        reg_w_val(gspca_dev, ET_I2C_REG, reg);  /* set the register base */
 320        reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x02);    /* prefetch */
 321        reg_w_val(gspca_dev, ET_I2C_PREFETCH, 0x00);
 322        reg_r(gspca_dev, ET_I2C_DATA0, 1);      /* read one byte */
 323        return 0;
 324}
 325
 326static int Et_WaitStatus(struct gspca_dev *gspca_dev)
 327{
 328        int retry = 10;
 329
 330        while (retry--) {
 331                reg_r(gspca_dev, ET_ClCK, 1);
 332                if (gspca_dev->usb_buf[0] != 0)
 333                        return 1;
 334        }
 335        return 0;
 336}
 337
 338static int et_video(struct gspca_dev *gspca_dev,
 339                    int on)
 340{
 341        int ret;
 342
 343        reg_w_val(gspca_dev, ET_GPIO_OUT,
 344                  on ? 0x10             /* startvideo - set Bit5 */
 345                     : 0);              /* stopvideo */
 346        ret = Et_WaitStatus(gspca_dev);
 347        if (ret != 0)
 348                PDEBUG(D_ERR, "timeout video on/off");
 349        return ret;
 350}
 351
 352static void Et_init2(struct gspca_dev *gspca_dev)
 353{
 354        __u8 value;
 355        static const __u8 FormLine[] = { 0x84, 0x03, 0x14, 0xf4, 0x01, 0x05 };
 356
 357        PDEBUG(D_STREAM, "Open Init2 ET");
 358        reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 0x2f);
 359        reg_w_val(gspca_dev, ET_GPIO_OUT, 0x10);
 360        reg_r(gspca_dev, ET_GPIO_IN, 1);
 361        reg_w_val(gspca_dev, ET_ClCK, 0x14); /* 0x14 // 0x16 enabled pattern */
 362        reg_w_val(gspca_dev, ET_CTRL, 0x1b);
 363
 364        /*  compression et subsampling */
 365        if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 366                value = ET_COMP_VAL1;   /* 320 */
 367        else
 368                value = ET_COMP_VAL0;   /* 640 */
 369        reg_w_val(gspca_dev, ET_COMP, value);
 370        reg_w_val(gspca_dev, ET_MAXQt, 0x1f);
 371        reg_w_val(gspca_dev, ET_MINQt, 0x04);
 372        /* undocumented registers */
 373        reg_w_val(gspca_dev, ET_REG1d, 0xff);
 374        reg_w_val(gspca_dev, ET_REG1e, 0xff);
 375        reg_w_val(gspca_dev, ET_REG1f, 0xff);
 376        reg_w_val(gspca_dev, ET_REG20, 0x35);
 377        reg_w_val(gspca_dev, ET_REG21, 0x01);
 378        reg_w_val(gspca_dev, ET_REG22, 0x00);
 379        reg_w_val(gspca_dev, ET_REG23, 0xff);
 380        reg_w_val(gspca_dev, ET_REG24, 0xff);
 381        reg_w_val(gspca_dev, ET_REG25, 0x0f);
 382        /* colors setting */
 383        reg_w_val(gspca_dev, 0x30, 0x11);               /* 0x30 */
 384        reg_w_val(gspca_dev, 0x31, 0x40);
 385        reg_w_val(gspca_dev, 0x32, 0x00);
 386        reg_w_val(gspca_dev, ET_O_RED, 0x00);           /* 0x34 */
 387        reg_w_val(gspca_dev, ET_O_GREEN1, 0x00);
 388        reg_w_val(gspca_dev, ET_O_BLUE, 0x00);
 389        reg_w_val(gspca_dev, ET_O_GREEN2, 0x00);
 390        /*************/
 391        reg_w_val(gspca_dev, ET_G_RED, 0x80);           /* 0x4d */
 392        reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 393        reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 394        reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 395        reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 396        reg_w_val(gspca_dev, ET_G_GB_H, 0x00);          /* 0x52 */
 397        /* Window control registers */
 398        reg_w_val(gspca_dev, 0x61, 0x80);               /* use cmc_out */
 399        reg_w_val(gspca_dev, 0x62, 0x02);
 400        reg_w_val(gspca_dev, 0x63, 0x03);
 401        reg_w_val(gspca_dev, 0x64, 0x14);
 402        reg_w_val(gspca_dev, 0x65, 0x0e);
 403        reg_w_val(gspca_dev, 0x66, 0x02);
 404        reg_w_val(gspca_dev, 0x67, 0x02);
 405
 406        /**************************************/
 407        reg_w_val(gspca_dev, ET_SYNCHRO, 0x8f);         /* 0x68 */
 408        reg_w_val(gspca_dev, ET_STARTX, 0x69);          /* 0x6a //0x69 */
 409        reg_w_val(gspca_dev, ET_STARTY, 0x0d);          /* 0x0d //0x0c */
 410        reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x80);
 411        reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0xe0);
 412        reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x60);      /* 6d */
 413        reg_w_val(gspca_dev, ET_REG6e, 0x86);
 414        reg_w_val(gspca_dev, ET_REG6f, 0x01);
 415        reg_w_val(gspca_dev, ET_REG70, 0x26);
 416        reg_w_val(gspca_dev, ET_REG71, 0x7a);
 417        reg_w_val(gspca_dev, ET_REG72, 0x01);
 418        /* Clock Pattern registers ***************** */
 419        reg_w_val(gspca_dev, ET_REG73, 0x00);
 420        reg_w_val(gspca_dev, ET_REG74, 0x18);           /* 0x28 */
 421        reg_w_val(gspca_dev, ET_REG75, 0x0f);           /* 0x01 */
 422        /**********************************************/
 423        reg_w_val(gspca_dev, 0x8a, 0x20);
 424        reg_w_val(gspca_dev, 0x8d, 0x0f);
 425        reg_w_val(gspca_dev, 0x8e, 0x08);
 426        /**************************************/
 427        reg_w_val(gspca_dev, 0x03, 0x08);
 428        reg_w_val(gspca_dev, ET_PXL_CLK, 0x03);
 429        reg_w_val(gspca_dev, 0x81, 0xff);
 430        reg_w_val(gspca_dev, 0x80, 0x00);
 431        reg_w_val(gspca_dev, 0x81, 0xff);
 432        reg_w_val(gspca_dev, 0x80, 0x20);
 433        reg_w_val(gspca_dev, 0x03, 0x01);
 434        reg_w_val(gspca_dev, 0x03, 0x00);
 435        reg_w_val(gspca_dev, 0x03, 0x08);
 436        /********************************************/
 437
 438/*      reg_r(gspca_dev, ET_I2C_BASE, 1);
 439                                         always 0x40 as the pas106 ??? */
 440        /* set the sensor */
 441        if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 442                value = 0x04;           /* 320 */
 443        else                            /* 640 */
 444                value = 0x1e;   /* 0x17  * setting PixelClock
 445                                         * 0x03 mean 24/(3+1) = 6 Mhz
 446                                         * 0x05 -> 24/(5+1) = 4 Mhz
 447                                         * 0x0b -> 24/(11+1) = 2 Mhz
 448                                         * 0x17 -> 24/(23+1) = 1 Mhz
 449                                         */
 450        reg_w_val(gspca_dev, ET_PXL_CLK, value);
 451        /* now set by fifo the FormatLine setting */
 452        reg_w(gspca_dev, 0x62, FormLine, 6);
 453
 454        /* set exposure times [ 0..0x78] 0->longvalue 0x78->shortvalue */
 455        reg_w_val(gspca_dev, 0x81, 0x47);       /* 0x47; */
 456        reg_w_val(gspca_dev, 0x80, 0x40);       /* 0x40; */
 457        /* Pedro change */
 458        /* Brightness change Brith+ decrease value */
 459        /* Brigth- increase value */
 460        /* original value = 0x70; */
 461        reg_w_val(gspca_dev, 0x81, 0x30);       /* 0x20; - set brightness */
 462        reg_w_val(gspca_dev, 0x80, 0x20);       /* 0x20; */
 463}
 464
 465static void setbrightness(struct gspca_dev *gspca_dev)
 466{
 467        struct sd *sd = (struct sd *) gspca_dev;
 468        int i;
 469        __u8 brightness = sd->brightness;
 470
 471        for (i = 0; i < 4; i++)
 472                reg_w_val(gspca_dev, ET_O_RED + i, brightness);
 473}
 474
 475static void setcontrast(struct gspca_dev *gspca_dev)
 476{
 477        struct sd *sd = (struct sd *) gspca_dev;
 478        __u8 RGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 479        __u8 contrast = sd->contrast;
 480
 481        memset(RGBG, contrast, sizeof(RGBG) - 2);
 482        reg_w(gspca_dev, ET_G_RED, RGBG, 6);
 483}
 484
 485static void setcolors(struct gspca_dev *gspca_dev)
 486{
 487        struct sd *sd = (struct sd *) gspca_dev;
 488        __u8 I2cc[] = { 0x05, 0x02, 0x02, 0x05, 0x0d };
 489        __u8 i2cflags = 0x01;
 490        /* __u8 green = 0; */
 491        __u8 colors = sd->colors;
 492
 493        I2cc[3] = colors;       /* red */
 494        I2cc[0] = 15 - colors;  /* blue */
 495        /* green = 15 - ((((7*I2cc[0]) >> 2 ) + I2cc[3]) >> 1); */
 496        /* I2cc[1] = I2cc[2] = green; */
 497        if (sd->sensor == SENSOR_PAS106) {
 498                i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 499                i2c_w(gspca_dev, PAS106_REG9, I2cc, sizeof I2cc, 1);
 500        }
 501/*      PDEBUG(D_CONF , "Etoms red %d blue %d green %d",
 502                I2cc[3], I2cc[0], green); */
 503}
 504
 505static void getcolors(struct gspca_dev *gspca_dev)
 506{
 507        struct sd *sd = (struct sd *) gspca_dev;
 508
 509        if (sd->sensor == SENSOR_PAS106) {
 510/*              i2c_r(gspca_dev, PAS106_REG9);           * blue */
 511                i2c_r(gspca_dev, PAS106_REG9 + 3);      /* red */
 512                sd->colors = gspca_dev->usb_buf[0] & 0x0f;
 513        }
 514}
 515
 516static void setautogain(struct gspca_dev *gspca_dev)
 517{
 518        struct sd *sd = (struct sd *) gspca_dev;
 519
 520        if (sd->autogain)
 521                sd->ag_cnt = AG_CNT_START;
 522        else
 523                sd->ag_cnt = -1;
 524}
 525
 526static void Et_init1(struct gspca_dev *gspca_dev)
 527{
 528        __u8 value;
 529/*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0x22, 0xac, 0x00, 0x01, 0x00}; */
 530        __u8 I2c0[] = { 0x0a, 0x12, 0x05, 0x6d, 0xcd, 0x00, 0x01, 0x00 };
 531                                                /* try 1/120 0x6d 0xcd 0x40 */
 532/*      __u8 I2c0 [] = {0x0a, 0x12, 0x05, 0xfe, 0xfe, 0xc0, 0x01, 0x00};
 533                                                 * 1/60000 hmm ?? */
 534
 535        PDEBUG(D_STREAM, "Open Init1 ET");
 536        reg_w_val(gspca_dev, ET_GPIO_DIR_CTRL, 7);
 537        reg_r(gspca_dev, ET_GPIO_IN, 1);
 538        reg_w_val(gspca_dev, ET_RESET_ALL, 1);
 539        reg_w_val(gspca_dev, ET_RESET_ALL, 0);
 540        reg_w_val(gspca_dev, ET_ClCK, 0x10);
 541        reg_w_val(gspca_dev, ET_CTRL, 0x19);
 542        /*   compression et subsampling */
 543        if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv)
 544                value = ET_COMP_VAL1;
 545        else
 546                value = ET_COMP_VAL0;
 547        PDEBUG(D_STREAM, "Open mode %d Compression %d",
 548               gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv,
 549               value);
 550        reg_w_val(gspca_dev, ET_COMP, value);
 551        reg_w_val(gspca_dev, ET_MAXQt, 0x1d);
 552        reg_w_val(gspca_dev, ET_MINQt, 0x02);
 553        /* undocumented registers */
 554        reg_w_val(gspca_dev, ET_REG1d, 0xff);
 555        reg_w_val(gspca_dev, ET_REG1e, 0xff);
 556        reg_w_val(gspca_dev, ET_REG1f, 0xff);
 557        reg_w_val(gspca_dev, ET_REG20, 0x35);
 558        reg_w_val(gspca_dev, ET_REG21, 0x01);
 559        reg_w_val(gspca_dev, ET_REG22, 0x00);
 560        reg_w_val(gspca_dev, ET_REG23, 0xf7);
 561        reg_w_val(gspca_dev, ET_REG24, 0xff);
 562        reg_w_val(gspca_dev, ET_REG25, 0x07);
 563        /* colors setting */
 564        reg_w_val(gspca_dev, ET_G_RED, 0x80);
 565        reg_w_val(gspca_dev, ET_G_GREEN1, 0x80);
 566        reg_w_val(gspca_dev, ET_G_BLUE, 0x80);
 567        reg_w_val(gspca_dev, ET_G_GREEN2, 0x80);
 568        reg_w_val(gspca_dev, ET_G_GR_H, 0x00);
 569        reg_w_val(gspca_dev, ET_G_GB_H, 0x00);
 570        /* Window control registers */
 571        reg_w_val(gspca_dev, ET_SYNCHRO, 0xf0);
 572        reg_w_val(gspca_dev, ET_STARTX, 0x56);          /* 0x56 */
 573        reg_w_val(gspca_dev, ET_STARTY, 0x05);          /* 0x04 */
 574        reg_w_val(gspca_dev, ET_WIDTH_LOW, 0x60);
 575        reg_w_val(gspca_dev, ET_HEIGTH_LOW, 0x20);
 576        reg_w_val(gspca_dev, ET_W_H_HEIGTH, 0x50);
 577        reg_w_val(gspca_dev, ET_REG6e, 0x86);
 578        reg_w_val(gspca_dev, ET_REG6f, 0x01);
 579        reg_w_val(gspca_dev, ET_REG70, 0x86);
 580        reg_w_val(gspca_dev, ET_REG71, 0x14);
 581        reg_w_val(gspca_dev, ET_REG72, 0x00);
 582        /* Clock Pattern registers */
 583        reg_w_val(gspca_dev, ET_REG73, 0x00);
 584        reg_w_val(gspca_dev, ET_REG74, 0x00);
 585        reg_w_val(gspca_dev, ET_REG75, 0x0a);
 586        reg_w_val(gspca_dev, ET_I2C_CLK, 0x04);
 587        reg_w_val(gspca_dev, ET_PXL_CLK, 0x01);
 588        /* set the sensor */
 589        if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 590                I2c0[0] = 0x06;
 591                i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 592                i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 593                value = 0x06;
 594                i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 595                i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 596                /* value = 0x1f; */
 597                value = 0x04;
 598                i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 599        } else {
 600                I2c0[0] = 0x0a;
 601
 602                i2c_w(gspca_dev, PAS106_REG2, I2c0, sizeof I2c0, 1);
 603                i2c_w(gspca_dev, PAS106_REG9, I2c2, sizeof I2c2, 1);
 604                value = 0x0a;
 605                i2c_w(gspca_dev, PAS106_REG2, &value, 1, 1);
 606                i2c_w(gspca_dev, PAS106_REG3, I2c3, sizeof I2c3, 1);
 607                value = 0x04;
 608                /* value = 0x10; */
 609                i2c_w(gspca_dev, PAS106_REG0e, &value, 1, 1);
 610                /* bit 2 enable bit 1:2 select 0 1 2 3
 611                   value = 0x07;                                * curve 0 *
 612                   i2c_w(gspca_dev, PAS106_REG0f, &value, 1, 1);
 613                 */
 614        }
 615
 616/*      value = 0x01; */
 617/*      value = 0x22; */
 618/*      i2c_w(gspca_dev, PAS106_REG5, &value, 1, 1); */
 619        /* magnetude and sign bit for DAC */
 620        i2c_w(gspca_dev, PAS106_REG7, I2c4, sizeof I2c4, 1);
 621        /* now set by fifo the whole colors setting */
 622        reg_w(gspca_dev, ET_G_RED, GainRGBG, 6);
 623        getcolors(gspca_dev);
 624        setcolors(gspca_dev);
 625}
 626
 627/* this function is called at probe time */
 628static int sd_config(struct gspca_dev *gspca_dev,
 629                     const struct usb_device_id *id)
 630{
 631        struct sd *sd = (struct sd *) gspca_dev;
 632        struct cam *cam;
 633
 634        cam = &gspca_dev->cam;
 635        sd->sensor = id->driver_info;
 636        if (sd->sensor == SENSOR_PAS106) {
 637                cam->cam_mode = sif_mode;
 638                cam->nmodes = ARRAY_SIZE(sif_mode);
 639        } else {
 640                cam->cam_mode = vga_mode;
 641                cam->nmodes = ARRAY_SIZE(vga_mode);
 642                gspca_dev->ctrl_dis = (1 << COLOR_IDX);
 643        }
 644        sd->brightness = BRIGHTNESS_DEF;
 645        sd->contrast = CONTRAST_DEF;
 646        sd->colors = COLOR_DEF;
 647        sd->autogain = AUTOGAIN_DEF;
 648        sd->ag_cnt = -1;
 649        return 0;
 650}
 651
 652/* this function is called at probe and resume time */
 653static int sd_init(struct gspca_dev *gspca_dev)
 654{
 655        struct sd *sd = (struct sd *) gspca_dev;
 656
 657        if (sd->sensor == SENSOR_PAS106)
 658                Et_init1(gspca_dev);
 659        else
 660                Et_init2(gspca_dev);
 661        reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 662        et_video(gspca_dev, 0);         /* video off */
 663        return 0;
 664}
 665
 666/* -- start the camera -- */
 667static int sd_start(struct gspca_dev *gspca_dev)
 668{
 669        struct sd *sd = (struct sd *) gspca_dev;
 670
 671        if (sd->sensor == SENSOR_PAS106)
 672                Et_init1(gspca_dev);
 673        else
 674                Et_init2(gspca_dev);
 675
 676        setautogain(gspca_dev);
 677
 678        reg_w_val(gspca_dev, ET_RESET_ALL, 0x08);
 679        et_video(gspca_dev, 1);         /* video on */
 680        return 0;
 681}
 682
 683static void sd_stopN(struct gspca_dev *gspca_dev)
 684{
 685        et_video(gspca_dev, 0);         /* video off */
 686}
 687
 688static __u8 Et_getgainG(struct gspca_dev *gspca_dev)
 689{
 690        struct sd *sd = (struct sd *) gspca_dev;
 691
 692        if (sd->sensor == SENSOR_PAS106) {
 693                i2c_r(gspca_dev, PAS106_REG0e);
 694                PDEBUG(D_CONF, "Etoms gain G %d", gspca_dev->usb_buf[0]);
 695                return gspca_dev->usb_buf[0];
 696        }
 697        return 0x1f;
 698}
 699
 700static void Et_setgainG(struct gspca_dev *gspca_dev, __u8 gain)
 701{
 702        struct sd *sd = (struct sd *) gspca_dev;
 703
 704        if (sd->sensor == SENSOR_PAS106) {
 705                __u8 i2cflags = 0x01;
 706
 707                i2c_w(gspca_dev, PAS106_REG13, &i2cflags, 1, 3);
 708                i2c_w(gspca_dev, PAS106_REG0e, &gain, 1, 1);
 709        }
 710}
 711
 712#define BLIMIT(bright) \
 713        (__u8)((bright > 0x1f)?0x1f:((bright < 4)?3:bright))
 714#define LIMIT(color) \
 715        (unsigned char)((color > 0xff)?0xff:((color < 0)?0:color))
 716
 717static void do_autogain(struct gspca_dev *gspca_dev)
 718{
 719        struct sd *sd = (struct sd *) gspca_dev;
 720        __u8 luma;
 721        __u8 luma_mean = 128;
 722        __u8 luma_delta = 20;
 723        __u8 spring = 4;
 724        int Gbright;
 725        __u8 r, g, b;
 726
 727        if (sd->ag_cnt < 0)
 728                return;
 729        if (--sd->ag_cnt >= 0)
 730                return;
 731        sd->ag_cnt = AG_CNT_START;
 732
 733        Gbright = Et_getgainG(gspca_dev);
 734        reg_r(gspca_dev, ET_LUMA_CENTER, 4);
 735        g = (gspca_dev->usb_buf[0] + gspca_dev->usb_buf[3]) >> 1;
 736        r = gspca_dev->usb_buf[1];
 737        b = gspca_dev->usb_buf[2];
 738        r = ((r << 8) - (r << 4) - (r << 3)) >> 10;
 739        b = ((b << 7) >> 10);
 740        g = ((g << 9) + (g << 7) + (g << 5)) >> 10;
 741        luma = LIMIT(r + g + b);
 742        PDEBUG(D_FRAM, "Etoms luma G %d", luma);
 743        if (luma < luma_mean - luma_delta || luma > luma_mean + luma_delta) {
 744                Gbright += (luma_mean - luma) >> spring;
 745                Gbright = BLIMIT(Gbright);
 746                PDEBUG(D_FRAM, "Etoms Gbright %d", Gbright);
 747                Et_setgainG(gspca_dev, (__u8) Gbright);
 748        }
 749}
 750
 751#undef BLIMIT
 752#undef LIMIT
 753
 754static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 755                        struct gspca_frame *frame,      /* target */
 756                        __u8 *data,                     /* isoc packet */
 757                        int len)                        /* iso packet length */
 758{
 759        int seqframe;
 760
 761        seqframe = data[0] & 0x3f;
 762        len = (int) (((data[0] & 0xc0) << 2) | data[1]);
 763        if (seqframe == 0x3f) {
 764                PDEBUG(D_FRAM,
 765                       "header packet found datalength %d !!", len);
 766                PDEBUG(D_FRAM, "G %d R %d G %d B %d",
 767                       data[2], data[3], data[4], data[5]);
 768                data += 30;
 769                /* don't change datalength as the chips provided it */
 770                frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
 771                                        data, 0);
 772                gspca_frame_add(gspca_dev, FIRST_PACKET, frame, data, len);
 773                return;
 774        }
 775        if (len) {
 776                data += 8;
 777                gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 778        } else {                        /* Drop Packet */
 779                gspca_dev->last_packet_type = DISCARD_PACKET;
 780        }
 781}
 782
 783static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 784{
 785        struct sd *sd = (struct sd *) gspca_dev;
 786
 787        sd->brightness = val;
 788        if (gspca_dev->streaming)
 789                setbrightness(gspca_dev);
 790        return 0;
 791}
 792
 793static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 794{
 795        struct sd *sd = (struct sd *) gspca_dev;
 796
 797        *val = sd->brightness;
 798        return 0;
 799}
 800
 801static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 802{
 803        struct sd *sd = (struct sd *) gspca_dev;
 804
 805        sd->contrast = val;
 806        if (gspca_dev->streaming)
 807                setcontrast(gspca_dev);
 808        return 0;
 809}
 810
 811static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 812{
 813        struct sd *sd = (struct sd *) gspca_dev;
 814
 815        *val = sd->contrast;
 816        return 0;
 817}
 818
 819static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
 820{
 821        struct sd *sd = (struct sd *) gspca_dev;
 822
 823        sd->colors = val;
 824        if (gspca_dev->streaming)
 825                setcolors(gspca_dev);
 826        return 0;
 827}
 828
 829static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
 830{
 831        struct sd *sd = (struct sd *) gspca_dev;
 832
 833        *val = sd->colors;
 834        return 0;
 835}
 836
 837static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
 838{
 839        struct sd *sd = (struct sd *) gspca_dev;
 840
 841        sd->autogain = val;
 842        if (gspca_dev->streaming)
 843                setautogain(gspca_dev);
 844        return 0;
 845}
 846
 847static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
 848{
 849        struct sd *sd = (struct sd *) gspca_dev;
 850
 851        *val = sd->autogain;
 852        return 0;
 853}
 854
 855/* sub-driver description */
 856static struct sd_desc sd_desc = {
 857        .name = MODULE_NAME,
 858        .ctrls = sd_ctrls,
 859        .nctrls = ARRAY_SIZE(sd_ctrls),
 860        .config = sd_config,
 861        .init = sd_init,
 862        .start = sd_start,
 863        .stopN = sd_stopN,
 864        .pkt_scan = sd_pkt_scan,
 865        .dq_callback = do_autogain,
 866};
 867
 868/* -- module initialisation -- */
 869static __devinitdata struct usb_device_id device_table[] = {
 870        {USB_DEVICE(0x102c, 0x6151), .driver_info = SENSOR_PAS106},
 871#if !defined CONFIG_USB_ET61X251 && !defined CONFIG_USB_ET61X251_MODULE
 872        {USB_DEVICE(0x102c, 0x6251), .driver_info = SENSOR_TAS5130CXX},
 873#endif
 874        {}
 875};
 876
 877MODULE_DEVICE_TABLE(usb, device_table);
 878
 879/* -- device connect -- */
 880static int sd_probe(struct usb_interface *intf,
 881                    const struct usb_device_id *id)
 882{
 883        return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 884                               THIS_MODULE);
 885}
 886
 887static struct usb_driver sd_driver = {
 888        .name = MODULE_NAME,
 889        .id_table = device_table,
 890        .probe = sd_probe,
 891        .disconnect = gspca_disconnect,
 892#ifdef CONFIG_PM
 893        .suspend = gspca_suspend,
 894        .resume = gspca_resume,
 895#endif
 896};
 897
 898/* -- module insert / remove -- */
 899static int __init sd_mod_init(void)
 900{
 901        int ret;
 902        ret = usb_register(&sd_driver);
 903        if (ret < 0)
 904                return ret;
 905        PDEBUG(D_PROBE, "registered");
 906        return 0;
 907}
 908
 909static void __exit sd_mod_exit(void)
 910{
 911        usb_deregister(&sd_driver);
 912        PDEBUG(D_PROBE, "deregistered");
 913}
 914
 915module_init(sd_mod_init);
 916module_exit(sd_mod_exit);
 917