drivers/media/usb/gspca/etoms.c

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This source file includes following definitions.
reg_r
reg_w_val
reg_w
i2c_w
i2c_r
Et_WaitStatus
et_video
Et_init2
setbrightness
setcontrast
setcolors
getcolors
setautogain
Et_init1
sd_config
sd_init
sd_start
sd_stopN
Et_getgainG
Et_setgainG
do_autogain
sd_pkt_scan
sd_s_ctrl
sd_init_controls
sd_probe
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   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 ": " fmt
   9 
  10 #define MODULE_NAME "etoms"
  11 
  12 #include "gspca.h"
  13 
  14 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  15 MODULE_DESCRIPTION("Etoms USB Camera Driver");
  16 MODULE_LICENSE("GPL");
  17 
  18 /* specific webcam descriptor */
  19 struct 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 0
  26 #define SENSOR_TAS5130CXX 1
  27         signed char ag_cnt;
  28 #define AG_CNT_START 13
  29 };
  30 
  31 static 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 
  44 static 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   12
  58 
  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 0x03
  63 #define ET_ClCK 0x01
  64 #define ET_CTRL 0x02            /* enable i2c OutClck Powerdown mode */
  65 
  66 #define ET_COMP 0x12            /* Compression register */
  67 #define ET_MAXQt 0x13
  68 #define ET_MINQt 0x14
  69 #define ET_COMP_VAL0 0x02
  70 #define ET_COMP_VAL1 0x03
  71 
  72 #define ET_REG1d 0x1d
  73 #define ET_REG1e 0x1e
  74 #define ET_REG1f 0x1f
  75 #define ET_REG20 0x20
  76 #define ET_REG21 0x21
  77 #define ET_REG22 0x22
  78 #define ET_REG23 0x23
  79 #define ET_REG24 0x24
  80 #define ET_REG25 0x25
  81 /* base registers for luma calculation */
  82 #define ET_LUMA_CENTER 0x39
  83 
  84 #define ET_G_RED 0x4d
  85 #define ET_G_GREEN1 0x4e
  86 #define ET_G_BLUE 0x4f
  87 #define ET_G_GREEN2 0x50
  88 #define ET_G_GR_H 0x51
  89 #define ET_G_GB_H 0x52
  90 
  91 #define ET_O_RED 0x34
  92 #define ET_O_GREEN1 0x35
  93 #define ET_O_BLUE 0x36
  94 #define ET_O_GREEN2 0x37
  95 
  96 #define ET_SYNCHRO 0x68
  97 #define ET_STARTX 0x69
  98 #define ET_STARTY 0x6a
  99 #define ET_WIDTH_LOW 0x6b
 100 #define ET_HEIGTH_LOW 0x6c
 101 #define ET_W_H_HEIGTH 0x6d
 102 
 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 0x8c
 113 #define ET_PXL_CLK 0x60
 114 
 115 #define ET_I2C_BASE 0x89
 116 #define ET_I2C_COUNT 0x8a
 117 #define ET_I2C_PREFETCH 0x8b
 118 #define ET_I2C_REG 0x88
 119 #define ET_I2C_DATA7 0x87
 120 #define ET_I2C_DATA6 0x86
 121 #define ET_I2C_DATA5 0x85
 122 #define ET_I2C_DATA4 0x84
 123 #define ET_I2C_DATA3 0x83
 124 #define ET_I2C_DATA2 0x82
 125 #define ET_I2C_DATA1 0x81
 126 #define ET_I2C_DATA0 0x80
 127 
 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 0x09
 135 #define PAS106_REG0e 0x0e       /* global gain [4..0](default 0x0e) */
 136 #define PAS106_REG13 0x13       /* end i2c write */
 137 
 138 static const __u8 GainRGBG[] = { 0x80, 0x80, 0x80, 0x80, 0x00, 0x00 };
 139 
 140 static const __u8 I2c2[] = { 0x08, 0x08, 0x08, 0x08, 0x0d };
 141 
 142 static const __u8 I2c3[] = { 0x12, 0x05 };
 143 
 144 static const __u8 I2c4[] = { 0x41, 0x08 };
 145 
 146 /* read 'len' bytes to gspca_dev->usb_buf */
 147 static 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 
 168 static 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 
 183 static 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 
 205 static 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 
 226 static 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 
 241 static 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 
 253 static 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 
 267 static 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         else
 283                 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 PixelClock
 360                                          * 0x03 mean 24/(3+1) = 6 Mhz
 361                                          * 0x05 -> 24/(5+1) = 4 Mhz
 362                                          * 0x0b -> 24/(11+1) = 2 Mhz
 363                                          * 0x17 -> 24/(23+1) = 1 Mhz
 364                                          */
 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 
 380 static 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 
 388 static 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 
 396 static 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 
 413 static 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 
 425 static 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         else
 432                 sd->ag_cnt = -1;
 433 }
 434 
 435 static 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         else
 455                 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 3
 520                    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 */
 536 static 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 */
 556 static 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         else
 563                 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 -- */
 570 static 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         else
 577                 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 
 586 static void sd_stopN(struct gspca_dev *gspca_dev)
 587 {
 588         et_video(gspca_dev, 0);         /* video off */
 589 }
 590 
 591 static __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 
 604 static 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 
 621 static 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 BLIMIT
 656 #undef LIMIT
 657 
 658 static 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 
 685 static 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 
 714 static const struct v4l2_ctrl_ops sd_ctrl_ops = {
 715         .s_ctrl = sd_s_ctrl,
 716 };
 717 
 718 static 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 */
 742 static 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 -- */
 754 static 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 
 760 MODULE_DEVICE_TABLE(usb, device_table);
 761 
 762 /* -- device connect -- */
 763 static 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 
 770 static 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_PM
 776         .suspend = gspca_suspend,
 777         .resume = gspca_resume,
 778         .reset_resume = gspca_resume,
 779 #endif
 780 };
 781 
 782 module_usb_driver(sd_driver);
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root/drivers/media/usb/gspca/etoms.c

DEFINITIONS
