git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/gspca/sonixb.c

   1 /*
   2  *              sonix sn9c102 (bayer) library
   3  *              Copyright (C) 2003 2004 Michel Xhaard mxhaard@magic.fr
   4  * Add Pas106 Stefano Mozzi (C) 2004
   5  *
   6  * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21  */
  22
  23 #define MODULE_NAME "sonixb"
  24
  25 #include "gspca.h"
  26
  27 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  28 MODULE_DESCRIPTION("GSPCA/SN9C102 USB Camera Driver");
  29 MODULE_LICENSE("GPL");
  30
  31 /* specific webcam descriptor */
  32 struct sd {
  33         struct gspca_dev gspca_dev;     /* !! must be the first item */
  34
  35         struct sd_desc sd_desc;         /* our nctrls differ dependend upon the
  36                                            sensor, so we use a per cam copy */
  37         atomic_t avg_lum;
  38
  39         unsigned char gain;
  40         unsigned char exposure;
  41         unsigned char brightness;
  42         unsigned char autogain;
  43         unsigned char autogain_ignore_frames;
  44         unsigned char frames_to_drop;
  45         unsigned char freq;             /* light freq filter setting */
  46
  47         unsigned char fr_h_sz;          /* size of frame header */
  48         char sensor;                    /* Type of image sensor chip */
  49 #define SENSOR_HV7131R 0
  50 #define SENSOR_OV6650 1
  51 #define SENSOR_OV7630 2
  52 #define SENSOR_PAS106 3
  53 #define SENSOR_PAS202 4
  54 #define SENSOR_TAS5110 5
  55 #define SENSOR_TAS5130CXX 6
  56         char sensor_has_gain;
  57         __u8 sensor_addr;
  58         __u8 reg11;
  59 };
  60
  61 /* flags used in the device id table */
  62 #define F_GAIN 0x01             /* has gain */
  63 #define F_AUTO 0x02             /* has autogain */
  64 #define F_SIF  0x04             /* sif or vga */
  65 #define F_H18  0x08             /* long (18 b) or short (12 b) frame header */
  66
  67 #define COMP2 0x8f
  68 #define COMP 0xc7               /* 0x87 //0x07 */
  69 #define COMP1 0xc9              /* 0x89 //0x09 */
  70
  71 #define MCK_INIT 0x63
  72 #define MCK_INIT1 0x20          /*fixme: Bayer - 0x50 for JPEG ??*/
  73
  74 #define SYS_CLK 0x04
  75
  76 /* We calculate the autogain at the end of the transfer of a frame, at this
  77    moment a frame with the old settings is being transmitted, and a frame is
  78    being captured with the old settings. So if we adjust the autogain we must
  79    ignore atleast the 2 next frames for the new settings to come into effect
  80    before doing any other adjustments */
  81 #define AUTOGAIN_IGNORE_FRAMES 3
  82 #define AUTOGAIN_DEADZONE 1000
  83 #define DESIRED_AVG_LUM 7000
  84
  85 /* V4L2 controls supported by the driver */
  86 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  87 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  88 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
  89 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
  90 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
  91 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
  92 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
  93 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
  94 static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
  95 static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);
  96
  97 static struct ctrl sd_ctrls[] = {
  98         {
  99             {
 100                 .id      = V4L2_CID_BRIGHTNESS,
 101                 .type    = V4L2_CTRL_TYPE_INTEGER,
 102                 .name    = "Brightness",
 103                 .minimum = 0,
 104                 .maximum = 255,
 105                 .step    = 1,
 106 #define BRIGHTNESS_DEF 127
 107                 .default_value = BRIGHTNESS_DEF,
 108             },
 109             .set = sd_setbrightness,
 110             .get = sd_getbrightness,
 111         },
 112         {
 113             {
 114                 .id      = V4L2_CID_GAIN,
 115                 .type    = V4L2_CTRL_TYPE_INTEGER,
 116                 .name    = "Gain",
 117                 .minimum = 0,
 118                 .maximum = 255,
 119                 .step    = 1,
 120 #define GAIN_DEF 127
 121 #define GAIN_KNEE 200
 122                 .default_value = GAIN_DEF,
 123             },
 124             .set = sd_setgain,
 125             .get = sd_getgain,
 126         },
 127         {
 128                 {
 129                         .id = V4L2_CID_EXPOSURE,
 130                         .type = V4L2_CTRL_TYPE_INTEGER,
 131                         .name = "Exposure",
 132 #define EXPOSURE_DEF  16 /*  32 ms / 30 fps */
 133 #define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */
 134                         .minimum = 0,
 135                         .maximum = 255,
 136                         .step = 1,
 137                         .default_value = EXPOSURE_DEF,
 138                         .flags = 0,
 139                 },
 140                 .set = sd_setexposure,
 141                 .get = sd_getexposure,
 142         },
 143         {
 144                 {
 145                         .id = V4L2_CID_AUTOGAIN,
 146                         .type = V4L2_CTRL_TYPE_BOOLEAN,
 147                         .name = "Automatic Gain (and Exposure)",
 148                         .minimum = 0,
 149                         .maximum = 1,
 150                         .step = 1,
 151 #define AUTOGAIN_DEF 1
 152                         .default_value = AUTOGAIN_DEF,
 153                         .flags = 0,
 154                 },
 155                 .set = sd_setautogain,
 156                 .get = sd_getautogain,
 157         },
 158         {
 159                 {
 160                         .id      = V4L2_CID_POWER_LINE_FREQUENCY,
 161                         .type    = V4L2_CTRL_TYPE_MENU,
 162                         .name    = "Light frequency filter",
 163                         .minimum = 0,
 164                         .maximum = 2,   /* 0: 0, 1: 50Hz, 2:60Hz */
 165                         .step    = 1,
 166 #define FREQ_DEF 1
 167                         .default_value = FREQ_DEF,
 168                 },
 169                 .set = sd_setfreq,
 170                 .get = sd_getfreq,
 171         },
 172 };
 173
 174 static struct v4l2_pix_format vga_mode[] = {
 175         {160, 120, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 176                 .bytesperline = 160,
 177                 .sizeimage = 160 * 120,
 178                 .colorspace = V4L2_COLORSPACE_SRGB,
 179                 .priv = 2},
 180         {320, 240, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 181                 .bytesperline = 320,
 182                 .sizeimage = 320 * 240,
 183                 .colorspace = V4L2_COLORSPACE_SRGB,
 184                 .priv = 1},
 185         {640, 480, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 186                 .bytesperline = 640,
 187                 .sizeimage = 640 * 480,
 188                 .colorspace = V4L2_COLORSPACE_SRGB,
 189                 .priv = 0},
 190 };
 191 static struct v4l2_pix_format sif_mode[] = {
 192         {176, 144, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 193                 .bytesperline = 176,
 194                 .sizeimage = 176 * 144,
 195                 .colorspace = V4L2_COLORSPACE_SRGB,
 196                 .priv = 1},
 197         {352, 288, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 198                 .bytesperline = 352,
 199                 .sizeimage = 352 * 288,
 200                 .colorspace = V4L2_COLORSPACE_SRGB,
 201                 .priv = 0},
 202 };
 203
 204 static const __u8 initHv7131[] = {
 205         0x46, 0x77, 0x00, 0x04, 0x00, 0x00, 0x00, 0x80, 0x11, 0x00, 0x00, 0x00,
 206         0x00, 0x00,
 207         0x00, 0x00, 0x00, 0x03, 0x01, 0x00,     /* shift from 0x02 0x01 0x00 */
 208         0x28, 0x1e, 0x60, 0x8a, 0x20,
 209         0x1d, 0x10, 0x02, 0x03, 0x0f, 0x0c
 210 };
 211 static const __u8 hv7131_sensor_init[][8] = {
 212         {0xc0, 0x11, 0x31, 0x38, 0x2a, 0x2e, 0x00, 0x10},
 213         {0xa0, 0x11, 0x01, 0x08, 0x2a, 0x2e, 0x00, 0x10},
 214         {0xb0, 0x11, 0x20, 0x00, 0xd0, 0x2e, 0x00, 0x10},
 215         {0xc0, 0x11, 0x25, 0x03, 0x0e, 0x28, 0x00, 0x16},
 216         {0xa0, 0x11, 0x30, 0x10, 0x0e, 0x28, 0x00, 0x15},
 217 };
 218 static const __u8 initOv6650[] = {
 219         0x44, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
 220         0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 221         0x00, 0x02, 0x01, 0x0a, 0x16, 0x12, 0x68, 0x0b,
 222         0x10, 0x1d, 0x10, 0x00, 0x06, 0x1f, 0x00
 223 };
 224 static const __u8 ov6650_sensor_init[][8] =
 225 {
 226         /* Bright, contrast, etc are set througth SCBB interface.
 227          * AVCAP on win2 do not send any data on this   controls. */
 228         /* Anyway, some registers appears to alter bright and constrat */
 229
 230         /* Reset sensor */
 231         {0xa0, 0x60, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10},
 232         /* Set clock register 0x11 low nibble is clock divider */
 233         {0xd0, 0x60, 0x11, 0xc0, 0x1b, 0x18, 0xc1, 0x10},
 234         /* Next some unknown stuff */
 235         {0xb0, 0x60, 0x15, 0x00, 0x02, 0x18, 0xc1, 0x10},
 236 /*      {0xa0, 0x60, 0x1b, 0x01, 0x02, 0x18, 0xc1, 0x10},
 237                  * THIS SET GREEN SCREEN
 238                  * (pixels could be innverted in decode kind of "brg",
 239                  * but blue wont be there. Avoid this data ... */
 240         {0xd0, 0x60, 0x26, 0x01, 0x14, 0xd8, 0xa4, 0x10}, /* format out? */
 241         {0xd0, 0x60, 0x26, 0x01, 0x14, 0xd8, 0xa4, 0x10},
 242         {0xa0, 0x60, 0x30, 0x3d, 0x0A, 0xd8, 0xa4, 0x10},
 243         /* Enable rgb brightness control */
 244         {0xa0, 0x60, 0x61, 0x08, 0x00, 0x00, 0x00, 0x10},
 245         /* HDG: Note windows uses the line below, which sets both register 0x60
 246            and 0x61 I believe these registers of the ov6650 are identical as
 247            those of the ov7630, because if this is true the windows settings
 248            add a bit additional red gain and a lot additional blue gain, which
 249            matches my findings that the windows settings make blue much too
 250            blue and red a little too red.
 251         {0xb0, 0x60, 0x60, 0x66, 0x68, 0xd8, 0xa4, 0x10}, */
 252         /* Some more unknown stuff */
 253         {0xa0, 0x60, 0x68, 0x04, 0x68, 0xd8, 0xa4, 0x10},
 254         {0xd0, 0x60, 0x17, 0x24, 0xd6, 0x04, 0x94, 0x10}, /* Clipreg */
 255 };
 256
 257 static const __u8 initOv7630[] = {
 258         0x04, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, /* r01 .. r08 */
 259         0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* r09 .. r10 */
 260         0x00, 0x02, 0x01, 0x0a,                         /* r11 .. r14 */
 261         0x28, 0x1e,                     /* H & V sizes     r15 .. r16 */
 262         0x68, COMP1, MCK_INIT1,                         /* r17 .. r19 */
 263         0x1d, 0x10, 0x02, 0x03, 0x0f, 0x0c              /* r1a .. r1f */
 264 };
 265 static const __u8 initOv7630_3[] = {
 266         0x44, 0x44, 0x00, 0x1a, 0x20, 0x20, 0x20, 0x80, /* r01 .. r08 */
 267         0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, /* r09 .. r10 */
 268         0x00, 0x01, 0x01, 0x0a,                         /* r11 .. r14 */
 269         0x28, 0x1e,                     /* H & V sizes     r15 .. r16 */
 270         0x68, 0x8f, MCK_INIT1,                          /* r17 .. r19 */
 271         0x1d, 0x10, 0x02, 0x03, 0x0f, 0x0c, 0x00,       /* r1a .. r20 */
 272         0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80, /* r21 .. r28 */
 273         0x90, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, 0xff  /* r29 .. r30 */
 274 };
 275 static const __u8 ov7630_sensor_init[][8] = {
 276         {0xa0, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10},
 277         {0xb0, 0x21, 0x01, 0x77, 0x3a, 0x00, 0x00, 0x10},
 278 /*      {0xd0, 0x21, 0x12, 0x7c, 0x01, 0x80, 0x34, 0x10},          jfm */
 279         {0xd0, 0x21, 0x12, 0x1c, 0x00, 0x80, 0x34, 0x10},       /* jfm */
 280         {0xa0, 0x21, 0x1b, 0x04, 0x00, 0x80, 0x34, 0x10},
 281         {0xa0, 0x21, 0x20, 0x44, 0x00, 0x80, 0x34, 0x10},
 282         {0xa0, 0x21, 0x23, 0xee, 0x00, 0x80, 0x34, 0x10},
 283         {0xd0, 0x21, 0x26, 0xa0, 0x9a, 0xa0, 0x30, 0x10},
 284         {0xb0, 0x21, 0x2a, 0x80, 0x00, 0xa0, 0x30, 0x10},
 285         {0xb0, 0x21, 0x2f, 0x3d, 0x24, 0xa0, 0x30, 0x10},
 286         {0xa0, 0x21, 0x32, 0x86, 0x24, 0xa0, 0x30, 0x10},
 287         {0xb0, 0x21, 0x60, 0xa9, 0x4a, 0xa0, 0x30, 0x10},
 288 /*      {0xb0, 0x21, 0x60, 0xa9, 0x42, 0xa0, 0x30, 0x10},        * jfm */
 289         {0xa0, 0x21, 0x65, 0x00, 0x42, 0xa0, 0x30, 0x10},
 290         {0xa0, 0x21, 0x69, 0x38, 0x42, 0xa0, 0x30, 0x10},
 291         {0xc0, 0x21, 0x6f, 0x88, 0x0b, 0x00, 0x30, 0x10},
 292         {0xc0, 0x21, 0x74, 0x21, 0x8e, 0x00, 0x30, 0x10},
 293         {0xa0, 0x21, 0x7d, 0xf7, 0x8e, 0x00, 0x30, 0x10},
 294         {0xd0, 0x21, 0x17, 0x1c, 0xbd, 0x06, 0xf6, 0x10},
 295 };
 296
 297 static const __u8 initPas106[] = {
 298         0x04, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x81, 0x40, 0x00, 0x00, 0x00,
 299         0x00, 0x00,
 300         0x00, 0x00, 0x00, 0x05, 0x01, 0x00,
 301         0x16, 0x12, 0x28, COMP1, MCK_INIT1,
 302         0x18, 0x10, 0x04, 0x03, 0x11, 0x0c
 303 };
 304 /* compression 0x86 mckinit1 0x2b */
 305 static const __u8 pas106_data[][2] = {
 306         {0x02, 0x04},           /* Pixel Clock Divider 6 */
 307         {0x03, 0x13},           /* Frame Time MSB */
 308 /*      {0x03, 0x12},            * Frame Time MSB */
 309         {0x04, 0x06},           /* Frame Time LSB */
 310 /*      {0x04, 0x05},            * Frame Time LSB */
 311         {0x05, 0x65},           /* Shutter Time Line Offset */
 312 /*      {0x05, 0x6d},            * Shutter Time Line Offset */
 313 /*      {0x06, 0xb1},            * Shutter Time Pixel Offset */
 314         {0x06, 0xcd},           /* Shutter Time Pixel Offset */
 315         {0x07, 0xc1},           /* Black Level Subtract Sign */
 316 /*      {0x07, 0x00},            * Black Level Subtract Sign */
 317         {0x08, 0x06},           /* Black Level Subtract Level */
 318         {0x08, 0x06},           /* Black Level Subtract Level */
 319 /*      {0x08, 0x01},            * Black Level Subtract Level */
 320         {0x09, 0x05},           /* Color Gain B Pixel 5 a */
 321         {0x0a, 0x04},           /* Color Gain G1 Pixel 1 5 */
 322         {0x0b, 0x04},           /* Color Gain G2 Pixel 1 0 5 */
 323         {0x0c, 0x05},           /* Color Gain R Pixel 3 1 */
 324         {0x0d, 0x00},           /* Color GainH  Pixel */
 325         {0x0e, 0x0e},           /* Global Gain */
 326         {0x0f, 0x00},           /* Contrast */
 327         {0x10, 0x06},           /* H&V synchro polarity */
 328         {0x11, 0x06},           /* ?default */
 329         {0x12, 0x06},           /* DAC scale */
 330         {0x14, 0x02},           /* ?default */
 331         {0x13, 0x01},           /* Validate Settings */
 332 };
 333 static const __u8 initPas202[] = {
 334         0x44, 0x44, 0x21, 0x30, 0x00, 0x00, 0x00, 0x80, 0x40, 0x00, 0x00, 0x00,
 335         0x00, 0x00,
 336         0x00, 0x00, 0x00, 0x07, 0x03, 0x0a,     /* 6 */
 337         0x28, 0x1e, 0x28, 0x89, 0x30,
 338         0x00, 0x00, 0x02, 0x03, 0x0f, 0x0c
 339 };
 340 static const __u8 pas202_sensor_init[][8] = {
 341         {0xa0, 0x40, 0x02, 0x03, 0x00, 0x00, 0x00, 0x10},
 342         {0xd0, 0x40, 0x04, 0x07, 0x34, 0x00, 0x09, 0x10},
 343         {0xd0, 0x40, 0x08, 0x01, 0x00, 0x00, 0x01, 0x10},
 344         {0xd0, 0x40, 0x0C, 0x00, 0x0C, 0x00, 0x32, 0x10},
 345         {0xd0, 0x40, 0x10, 0x00, 0x01, 0x00, 0x63, 0x10},
 346         {0xa0, 0x40, 0x15, 0x70, 0x01, 0x00, 0x63, 0x10},
 347         {0xa0, 0x40, 0x18, 0x00, 0x01, 0x00, 0x63, 0x10},
 348         {0xa0, 0x40, 0x11, 0x01, 0x01, 0x00, 0x63, 0x10},
 349         {0xa0, 0x40, 0x03, 0x56, 0x01, 0x00, 0x63, 0x10},
 350         {0xa0, 0x40, 0x11, 0x01, 0x01, 0x00, 0x63, 0x10},
 351         {0xb0, 0x40, 0x04, 0x07, 0x2a, 0x00, 0x63, 0x10},
 352         {0xb0, 0x40, 0x0e, 0x00, 0x3d, 0x00, 0x63, 0x10},
 353
 354         {0xa0, 0x40, 0x11, 0x01, 0x3d, 0x00, 0x63, 0x16},
 355         {0xa0, 0x40, 0x10, 0x08, 0x3d, 0x00, 0x63, 0x15},
 356         {0xa0, 0x40, 0x02, 0x04, 0x3d, 0x00, 0x63, 0x16},
 357         {0xa0, 0x40, 0x11, 0x01, 0x3d, 0x00, 0x63, 0x16},
 358         {0xb0, 0x40, 0x0e, 0x00, 0x31, 0x00, 0x63, 0x16},
 359         {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16},
 360         {0xa0, 0x40, 0x10, 0x0e, 0x31, 0x00, 0x63, 0x15},
 361         {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16},
 362 };
 363
 364 static const __u8 initTas5110[] = {
 365         0x44, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x11, 0x00, 0x00, 0x00,
 366         0x00, 0x00,
 367         0x00, 0x01, 0x00, 0x46, 0x09, 0x0a,     /* shift from 0x45 0x09 0x0a */
 368         0x16, 0x12, 0x60, 0x86, 0x2b,
 369         0x14, 0x0a, 0x02, 0x02, 0x09, 0x07
 370 };
 371 static const __u8 tas5110_sensor_init[][8] = {
 372         {0x30, 0x11, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x10},
 373         {0x30, 0x11, 0x02, 0x20, 0xa9, 0x00, 0x00, 0x10},
 374         {0xa0, 0x61, 0x9a, 0xca, 0x00, 0x00, 0x00, 0x17},
 375 };
 376
 377 static const __u8 initTas5130[] = {
 378         0x04, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x11, 0x00, 0x00, 0x00,
 379         0x00, 0x00,
 380         0x00, 0x01, 0x00, 0x69, 0x0c, 0x0a,
 381         0x28, 0x1e, 0x60, COMP, MCK_INIT,
 382         0x18, 0x10, 0x04, 0x03, 0x11, 0x0c
 383 };
 384 static const __u8 tas5130_sensor_init[][8] = {
 385 /*      {0x30, 0x11, 0x00, 0x40, 0x47, 0x00, 0x00, 0x10},
 386                                         * shutter 0x47 short exposure? */
 387         {0x30, 0x11, 0x00, 0x40, 0x01, 0x00, 0x00, 0x10},
 388                                         /* shutter 0x01 long exposure */
 389         {0x30, 0x11, 0x02, 0x20, 0x70, 0x00, 0x00, 0x10},
 390 };
 391
 392 /* get one byte in gspca_dev->usb_buf */
 393 static void reg_r(struct gspca_dev *gspca_dev,
 394                   __u16 value)
 395 {
 396         usb_control_msg(gspca_dev->dev,
 397                         usb_rcvctrlpipe(gspca_dev->dev, 0),
 398                         0,                      /* request */
 399                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 400                         value,
 401                         0,                      /* index */
 402                         gspca_dev->usb_buf, 1,
 403                         500);
 404 }
 405
 406 static void reg_w(struct gspca_dev *gspca_dev,
 407                   __u16 value,
 408                   const __u8 *buffer,
 409                   int len)
 410 {
 411 #ifdef GSPCA_DEBUG
 412         if (len > sizeof gspca_dev->usb_buf) {
 413                 PDEBUG(D_ERR|D_PACK, "reg_w: buffer overflow");
 414                 return;
 415         }
 416 #endif
 417         memcpy(gspca_dev->usb_buf, buffer, len);
 418         usb_control_msg(gspca_dev->dev,
 419                         usb_sndctrlpipe(gspca_dev->dev, 0),
 420                         0x08,                   /* request */
 421                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 422                         value,
 423                         0,                      /* index */
 424                         gspca_dev->usb_buf, len,
 425                         500);
 426 }
 427
 428 static void reg_w_big(struct gspca_dev *gspca_dev,
 429                   __u16 value,
 430                   const __u8 *buffer,
 431                   int len)
 432 {
 433         __u8 *tmpbuf;
 434
 435         tmpbuf = kmalloc(len, GFP_KERNEL);
 436         memcpy(tmpbuf, buffer, len);
 437         usb_control_msg(gspca_dev->dev,
 438                         usb_sndctrlpipe(gspca_dev->dev, 0),
 439                         0x08,                   /* request */
 440                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
 441                         value,
 442                         0,                      /* index */
 443                         tmpbuf, len,
 444                         500);
 445         kfree(tmpbuf);
 446 }
 447
 448 static int i2c_w(struct gspca_dev *gspca_dev, const __u8 *buffer)
 449 {
 450         int retry = 60;
 451
 452         /* is i2c ready */
 453         reg_w(gspca_dev, 0x08, buffer, 8);
 454         while (retry--) {
 455                 msleep(10);
 456                 reg_r(gspca_dev, 0x08);
 457                 if (gspca_dev->usb_buf[0] & 0x04) {
 458                         if (gspca_dev->usb_buf[0] & 0x08)
 459                                 return -1;
 460                         return 0;
 461                 }
 462         }
 463         return -1;
 464 }
 465
 466 static void i2c_w_vector(struct gspca_dev *gspca_dev,
 467                         const __u8 buffer[][8], int len)
 468 {
 469         for (;;) {
 470                 reg_w(gspca_dev, 0x08, *buffer, 8);
 471                 len -= 8;
 472                 if (len <= 0)
 473                         break;
 474                 buffer++;
 475         }
 476 }
 477
 478 static void setbrightness(struct gspca_dev *gspca_dev)
 479 {
 480         struct sd *sd = (struct sd *) gspca_dev;
 481         __u8 value;
 482
 483         switch (sd->sensor) {
 484         case  SENSOR_OV6650:
 485         case  SENSOR_OV7630: {
 486                 __u8 i2cOV[] =
 487                         {0xa0, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10};
 488
 489                 /* change reg 0x06 */
 490                 i2cOV[1] = sd->sensor_addr;
 491                 i2cOV[3] = sd->brightness;
 492                 if (i2c_w(gspca_dev, i2cOV) < 0)
 493                         goto err;
 494                 break;
 495             }
 496         case SENSOR_PAS106: {
 497                 __u8 i2c1[] =
 498                         {0xa1, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14};
 499
 500                 i2c1[3] = sd->brightness >> 3;
 501                 i2c1[2] = 0x0e;
 502                 if (i2c_w(gspca_dev, i2c1) < 0)
 503                         goto err;
 504                 i2c1[3] = 0x01;
 505                 i2c1[2] = 0x13;
 506                 if (i2c_w(gspca_dev, i2c1) < 0)
 507                         goto err;
 508                 break;
 509             }
 510         case SENSOR_PAS202: {
 511                 /* __u8 i2cpexpo1[] =
 512                         {0xb0, 0x40, 0x04, 0x07, 0x2a, 0x00, 0x63, 0x16}; */
 513                 __u8 i2cpexpo[] =
 514                         {0xb0, 0x40, 0x0e, 0x01, 0xab, 0x00, 0x63, 0x16};
 515                 __u8 i2cp202[] =
 516                         {0xa0, 0x40, 0x10, 0x0e, 0x31, 0x00, 0x63, 0x15};
 517                 static __u8 i2cpdoit[] =
 518                         {0xa0, 0x40, 0x11, 0x01, 0x31, 0x00, 0x63, 0x16};
 519
 520                 /* change reg 0x10 */
 521                 i2cpexpo[4] = 0xff - sd->brightness;
 522 /*              if(i2c_w(gspca_dev,i2cpexpo1) < 0)
 523                         goto err; */
 524 /*              if(i2c_w(gspca_dev,i2cpdoit) < 0)
 525                         goto err; */
 526                 if (i2c_w(gspca_dev, i2cpexpo) < 0)
 527                         goto err;
 528                 if (i2c_w(gspca_dev, i2cpdoit) < 0)
 529                         goto err;
 530                 i2cp202[3] = sd->brightness >> 3;
 531                 if (i2c_w(gspca_dev, i2cp202) < 0)
 532                         goto err;
 533                 if (i2c_w(gspca_dev, i2cpdoit) < 0)
 534                         goto err;
 535                 break;
 536             }
 537         case SENSOR_TAS5130CXX: {
 538                 __u8 i2c[] =
 539                         {0x30, 0x11, 0x02, 0x20, 0x70, 0x00, 0x00, 0x10};
 540
 541                 value = 0xff - sd->brightness;
 542                 i2c[4] = value;
 543                 PDEBUG(D_CONF, "brightness %d : %d", value, i2c[4]);
 544                 if (i2c_w(gspca_dev, i2c) < 0)
 545                         goto err;
 546                 break;
 547             }
 548         case SENSOR_TAS5110:
 549                 /* FIXME figure out howto control brightness on TAS5110 */
 550                 break;
 551         }
 552         return;
 553 err:
 554         PDEBUG(D_ERR, "i2c error brightness");
 555 }
 556
 557 static void setsensorgain(struct gspca_dev *gspca_dev)
 558 {
 559         struct sd *sd = (struct sd *) gspca_dev;
 560         unsigned char gain = sd->gain;
 561
 562         switch (sd->sensor) {
 563
 564         case SENSOR_TAS5110: {
 565                 __u8 i2c[] =
 566                         {0x30, 0x11, 0x02, 0x20, 0x70, 0x00, 0x00, 0x10};
 567
 568                 i2c[4] = 255 - gain;
 569                 if (i2c_w(gspca_dev, i2c) < 0)
 570                         goto err;
 571                 break;
 572             }
 573
 574         case SENSOR_OV6650:
 575                 gain >>= 1;
 576                 /* fall thru */
 577         case SENSOR_OV7630: {
 578                 __u8 i2c[] = {0xa0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10};
 579
 580                 i2c[1] = sd->sensor_addr;
 581                 i2c[3] = gain >> 2;
 582                 if (i2c_w(gspca_dev, i2c) < 0)
 583                         goto err;
 584                 break;
 585             }
 586         }
 587         return;
 588 err:
 589         PDEBUG(D_ERR, "i2c error gain");
 590 }
 591
 592 static void setgain(struct gspca_dev *gspca_dev)
 593 {
 594         struct sd *sd = (struct sd *) gspca_dev;
 595         __u8 gain;
 596         __u8 rgb_value;
 597
 598         gain = sd->gain >> 4;
 599
 600         /* red and blue gain */
 601         rgb_value = gain << 4 | gain;
 602         reg_w(gspca_dev, 0x10, &rgb_value, 1);
 603         /* green gain */
 604         rgb_value = gain;
 605         reg_w(gspca_dev, 0x11, &rgb_value, 1);
 606
 607         if (sd->sensor_has_gain)
 608                 setsensorgain(gspca_dev);
 609 }
 610
 611 static void setexposure(struct gspca_dev *gspca_dev)
 612 {
 613         struct sd *sd = (struct sd *) gspca_dev;
 614
 615         switch (sd->sensor) {
 616         case SENSOR_TAS5110: {
 617                 __u8 reg;
 618
 619                 /* register 19's high nibble contains the sn9c10x clock divider
 620                    The high nibble configures the no fps according to the
 621                    formula: 60 / high_nibble. With a maximum of 30 fps */
 622                 reg = 120 * sd->exposure / 1000;
 623                 if (reg < 2)
 624                         reg = 2;
 625                 else if (reg > 15)
 626                         reg = 15;
 627                 reg = (reg << 4) | 0x0b;
 628                 reg_w(gspca_dev, 0x19, &reg, 1);
 629                 break;
 630             }
 631         case SENSOR_OV6650:
 632         case SENSOR_OV7630: {
 633                 /* The ov6650 / ov7630 have 2 registers which both influence
 634                    exposure, register 11, whose low nibble sets the nr off fps
 635                    according to: fps = 30 / (low_nibble + 1)
 636
 637                    The fps configures the maximum exposure setting, but it is
 638                    possible to use less exposure then what the fps maximum
 639                    allows by setting register 10. register 10 configures the
 640                    actual exposure as quotient of the full exposure, with 0
 641                    being no exposure at all (not very usefull) and reg10_max
 642                    being max exposure possible at that framerate.
 643
 644                    The code maps our 0 - 510 ms exposure ctrl to these 2
 645                    registers, trying to keep fps as high as possible.
 646                 */
 647                 __u8 i2c[] = {0xb0, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10};
 648                 int reg10, reg11, reg10_max;
 649
 650                 /* ov6645 datasheet says reg10_max is 9a, but that uses
 651                    tline * 2 * reg10 as formula for calculating texpo, the
 652                    ov6650 probably uses the same formula as the 7730 which uses
 653                    tline * 4 * reg10, which explains why the reg10max we've
 654                    found experimentally for the ov6650 is exactly half that of
 655                    the ov6645. The ov7630 datasheet says the max is 0x41. */
 656                 if (sd->sensor == SENSOR_OV6650) {
 657                         reg10_max = 0x4d;
 658                         i2c[4] = 0xc0; /* OV6650 needs non default vsync pol */
 659                 } else
 660                         reg10_max = 0x41;
 661
 662                 reg11 = (60 * sd->exposure + 999) / 1000;
 663                 if (reg11 < 1)
 664                         reg11 = 1;
 665                 else if (reg11 > 16)
 666                         reg11 = 16;
 667
 668                 /* frame exposure time in ms = 1000 * reg11 / 30    ->
 669                 reg10 = sd->exposure * 2 * reg10_max / (1000 * reg11 / 30) */
 670                 reg10 = (sd->exposure * 60 * reg10_max) / (1000 * reg11);
 671
 672                 /* Don't allow this to get below 10 when using autogain, the
 673                    steps become very large (relatively) when below 10 causing
 674                    the image to oscilate from much too dark, to much too bright
 675                    and back again. */
 676                 if (sd->autogain && reg10 < 10)
 677                         reg10 = 10;
 678                 else if (reg10 > reg10_max)
 679                         reg10 = reg10_max;
 680
 681                 /* In 640x480, if the reg11 has less than 3, the image is
 682                    unstable (not enough bandwidth). */
 683                 if (gspca_dev->width == 640 && reg11 < 3)
 684                         reg11 = 3;
 685
 686                 /* Write reg 10 and reg11 low nibble */
 687                 i2c[1] = sd->sensor_addr;
 688                 i2c[3] = reg10;
 689                 i2c[4] |= reg11 - 1;
 690
 691                 /* If register 11 didn't change, don't change it */
 692                 if (sd->reg11 == reg11 )
 693                         i2c[0] = 0xa0;
 694
 695                 if (i2c_w(gspca_dev, i2c) == 0)
 696                         sd->reg11 = reg11;
 697                 else
 698                         PDEBUG(D_ERR, "i2c error exposure");
 699                 break;
 700             }
 701         }
 702 }
 703
 704 static void setfreq(struct gspca_dev *gspca_dev)
 705 {
 706         struct sd *sd = (struct sd *) gspca_dev;
 707
 708         switch (sd->sensor) {
 709         case SENSOR_OV6650:
 710         case SENSOR_OV7630: {
 711                 /* Framerate adjust register for artificial light 50 hz flicker
 712                    compensation, for the ov6650 this is identical to ov6630
 713                    0x2b register, see ov6630 datasheet.
 714                    0x4f / 0x8a -> (30 fps -> 25 fps), 0x00 -> no adjustment */
 715                 __u8 i2c[] = {0xa0, 0x00, 0x2b, 0x00, 0x00, 0x00, 0x00, 0x10};
 716                 switch (sd->freq) {
 717                 default:
 718 /*              case 0:                  * no filter*/
 719 /*              case 2:                  * 60 hz */
 720                         i2c[3] = 0;
 721                         break;
 722                 case 1:                 /* 50 hz */
 723                         i2c[3] = (sd->sensor == SENSOR_OV6650)
 724                                         ? 0x4f : 0x8a;
 725                         break;
 726                 }
 727                 i2c[1] = sd->sensor_addr;
 728                 if (i2c_w(gspca_dev, i2c) < 0)
 729                         PDEBUG(D_ERR, "i2c error setfreq");
 730                 break;
 731             }
 732         }
 733 }
 734
 735 static void do_autogain(struct gspca_dev *gspca_dev)
 736 {
 737         struct sd *sd = (struct sd *) gspca_dev;
 738         int avg_lum = atomic_read(&sd->avg_lum);
 739
 740         if (avg_lum == -1)
 741                 return;
 742
 743         if (sd->autogain_ignore_frames > 0)
 744                 sd->autogain_ignore_frames--;
 745         else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum,
 746                         sd->brightness * DESIRED_AVG_LUM / 127,
 747                         AUTOGAIN_DEADZONE, GAIN_KNEE, EXPOSURE_KNEE)) {
 748                 PDEBUG(D_FRAM, "autogain: gain changed: gain: %d expo: %d\n",
 749                         (int)sd->gain, (int)sd->exposure);
 750                 sd->autogain_ignore_frames = AUTOGAIN_IGNORE_FRAMES;
 751         }
 752 }
 753
 754 /* this function is called at probe time */
 755 static int sd_config(struct gspca_dev *gspca_dev,
 756                         const struct usb_device_id *id)
 757 {
 758         struct sd *sd = (struct sd *) gspca_dev;
 759         struct cam *cam;
 760         int sif = 0;
 761
 762         /* nctrls depends upon the sensor, so we use a per cam copy */
 763         memcpy(&sd->sd_desc, gspca_dev->sd_desc, sizeof(struct sd_desc));
 764         gspca_dev->sd_desc = &sd->sd_desc;
 765
 766         /* copy the webcam info from the device id */
 767         sd->sensor = (id->driver_info >> 24) & 0xff;
 768         if (id->driver_info & (F_GAIN << 16))
 769                 sd->sensor_has_gain = 1;
 770         if (id->driver_info & (F_AUTO << 16))
 771                 sd->sd_desc.dq_callback = do_autogain;
 772         if (id->driver_info & (F_SIF << 16))
 773                 sif = 1;
 774         if (id->driver_info & (F_H18 << 16))
 775                 sd->fr_h_sz = 18;               /* size of frame header */
 776         else
 777                 sd->fr_h_sz = 12;
 778         sd->sd_desc.nctrls = (id->driver_info >> 8) & 0xff;
 779         sd->sensor_addr = id->driver_info & 0xff;
 780
 781         cam = &gspca_dev->cam;
 782         cam->epaddr = 0x01;
 783         if (!sif) {
 784                 cam->cam_mode = vga_mode;
 785                 cam->nmodes = ARRAY_SIZE(vga_mode);
 786         } else {
 787                 cam->cam_mode = sif_mode;
 788                 cam->nmodes = ARRAY_SIZE(sif_mode);
 789         }
 790         sd->brightness = BRIGHTNESS_DEF;
 791         sd->gain = GAIN_DEF;
 792         sd->exposure = EXPOSURE_DEF;
 793         sd->autogain = AUTOGAIN_DEF;
 794         sd->freq = FREQ_DEF;
 795
 796         return 0;
 797 }
 798
 799 /* this function is called at open time */
 800 static int sd_open(struct gspca_dev *gspca_dev)
 801 {
 802         reg_r(gspca_dev, 0x00);
 803         if (gspca_dev->usb_buf[0] != 0x10)
 804                 return -ENODEV;
 805         return 0;
 806 }
 807
 808 static void pas106_i2cinit(struct gspca_dev *gspca_dev)
 809 {
 810         int i;
 811         const __u8 *data;
 812         __u8 i2c1[] = { 0xa1, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14 };
 813
 814         i = ARRAY_SIZE(pas106_data);
 815         data = pas106_data[0];
 816         while (--i >= 0) {
 817                 memcpy(&i2c1[2], data, 2);
 818                                         /* copy 2 bytes from the template */
 819                 if (i2c_w(gspca_dev, i2c1) < 0)
 820                         PDEBUG(D_ERR, "i2c error pas106");
 821                 data += 2;
 822         }
 823 }
 824
 825 /* -- start the camera -- */
 826 static void sd_start(struct gspca_dev *gspca_dev)
 827 {
 828         struct sd *sd = (struct sd *) gspca_dev;
 829         int mode, l = 0x1f;
 830         const __u8 *sn9c10x;
 831         __u8 reg17_19[3];
 832
 833         mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
 834         switch (sd->sensor) {
 835         case SENSOR_HV7131R:
 836                 sn9c10x = initHv7131;
 837                 reg17_19[0] = 0x60;
 838                 reg17_19[1] = (mode << 4) | 0x8a;
 839                 reg17_19[2] = 0x20;
 840                 break;
 841         case SENSOR_OV6650:
 842                 sn9c10x = initOv6650;
 843                 reg17_19[0] = 0x68;
 844                 reg17_19[1] = (mode << 4) | 0x8b;
 845                 reg17_19[2] = 0x20;
 846                 break;
 847         case SENSOR_OV7630:
 848                 if (sd->fr_h_sz == 18) { /* SN9C103 */
 849                         sn9c10x = initOv7630_3;
 850                         l = sizeof initOv7630_3;
 851                 } else
 852                         sn9c10x = initOv7630;
 853                 reg17_19[0] = 0x68;
 854                 reg17_19[1] = (mode << 4) | COMP2;
 855                 reg17_19[2] = MCK_INIT1;
 856                 break;
 857         case SENSOR_PAS106:
 858                 sn9c10x = initPas106;
 859                 reg17_19[0] = 0x24;             /* 0x28 */
 860                 reg17_19[1] = (mode << 4) | COMP1;
 861                 reg17_19[2] = MCK_INIT1;
 862                 break;
 863         case SENSOR_PAS202:
 864                 sn9c10x = initPas202;
 865                 reg17_19[0] = mode ? 0x24 : 0x20;
 866                 reg17_19[1] = (mode << 4) | 0x89;
 867                 reg17_19[2] = 0x20;
 868                 break;
 869         case SENSOR_TAS5110:
 870                 sn9c10x = initTas5110;
 871                 reg17_19[0] = 0x60;
 872                 reg17_19[1] = (mode << 4) | 0x86;
 873                 reg17_19[2] = 0x2b;             /* 0xf3; */
 874                 break;
 875         default:
 876 /*      case SENSOR_TAS5130CXX: */
 877                 sn9c10x = initTas5130;
 878                 reg17_19[0] = 0x60;
 879                 reg17_19[1] = (mode << 4) | COMP;
 880                 reg17_19[2] = mode ? 0x23 : 0x43;
 881                 break;
 882         }
 883
 884         /* reg 0x01 bit 2 video transfert on */
 885         reg_w(gspca_dev, 0x01, &sn9c10x[0x01 - 1], 1);
 886         /* reg 0x17 SensorClk enable inv Clk 0x60 */
 887         reg_w(gspca_dev, 0x17, &sn9c10x[0x17 - 1], 1);
 888         /* Set the registers from the template */
 889         reg_w_big(gspca_dev, 0x01, sn9c10x, l);
 890         switch (sd->sensor) {
 891         case SENSOR_HV7131R:
 892                 i2c_w_vector(gspca_dev, hv7131_sensor_init,
 893                                 sizeof hv7131_sensor_init);
 894                 break;
 895         case SENSOR_OV6650:
 896                 i2c_w_vector(gspca_dev, ov6650_sensor_init,
 897                                 sizeof ov6650_sensor_init);
 898                 break;
 899         case SENSOR_OV7630:
 900                 i2c_w_vector(gspca_dev, ov7630_sensor_init,
 901                                 sizeof ov7630_sensor_init);
 902                 if (sd->fr_h_sz == 18) { /* SN9C103 */
 903                         const __u8 i2c[] = { 0xa0, 0x21, 0x13, 0x80, 0x00,
 904                                                 0x00, 0x00, 0x10 };
 905                         i2c_w(gspca_dev, i2c);
 906                 }
 907                 break;
 908         case SENSOR_PAS106:
 909                 pas106_i2cinit(gspca_dev);
 910                 break;
 911         case SENSOR_PAS202:
 912                 i2c_w_vector(gspca_dev, pas202_sensor_init,
 913                                 sizeof pas202_sensor_init);
 914                 break;
 915         case SENSOR_TAS5110:
 916                 i2c_w_vector(gspca_dev, tas5110_sensor_init,
 917                                 sizeof tas5110_sensor_init);
 918                 break;
 919         default:
 920 /*      case SENSOR_TAS5130CXX: */
 921                 i2c_w_vector(gspca_dev, tas5130_sensor_init,
 922                                 sizeof tas5130_sensor_init);
 923                 break;
 924         }
 925         /* H_size V_size 0x28, 0x1e -> 640x480. 0x16, 0x12 -> 352x288 */
 926         reg_w(gspca_dev, 0x15, &sn9c10x[0x15 - 1], 2);
 927         /* compression register */
 928         reg_w(gspca_dev, 0x18, &reg17_19[1], 1);
 929         /* H_start */
 930         reg_w(gspca_dev, 0x12, &sn9c10x[0x12 - 1], 1);
 931         /* V_START */
 932         reg_w(gspca_dev, 0x13, &sn9c10x[0x13 - 1], 1);
 933         /* reset 0x17 SensorClk enable inv Clk 0x60 */
 934                                 /*fixme: ov7630 [17]=68 8f (+20 if 102)*/
 935         reg_w(gspca_dev, 0x17, &reg17_19[0], 1);
 936         /*MCKSIZE ->3 */        /*fixme: not ov7630*/
 937         reg_w(gspca_dev, 0x19, &reg17_19[2], 1);
 938         /* AE_STRX AE_STRY AE_ENDX AE_ENDY */
 939         reg_w(gspca_dev, 0x1c, &sn9c10x[0x1c - 1], 4);
 940         /* Enable video transfert */
 941         reg_w(gspca_dev, 0x01, &sn9c10x[0], 1);
 942         /* Compression */
 943         reg_w(gspca_dev, 0x18, &reg17_19[1], 2);
 944         msleep(20);
 945
 946         sd->reg11 = -1;
 947
 948         setgain(gspca_dev);
 949         setbrightness(gspca_dev);
 950         setexposure(gspca_dev);
 951         setfreq(gspca_dev);
 952
 953         sd->frames_to_drop = 0;
 954         sd->autogain_ignore_frames = 0;
 955         atomic_set(&sd->avg_lum, -1);
 956 }
 957
 958 static void sd_stopN(struct gspca_dev *gspca_dev)
 959 {
 960         __u8 ByteSend;
 961
 962         ByteSend = 0x09;        /* 0X00 */
 963         reg_w(gspca_dev, 0x01, &ByteSend, 1);
 964 }
 965
 966 static void sd_stop0(struct gspca_dev *gspca_dev)
 967 {
 968 }
 969
 970 static void sd_close(struct gspca_dev *gspca_dev)
 971 {
 972 }
 973
 974 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 975                         struct gspca_frame *frame,      /* target */
 976                         unsigned char *data,            /* isoc packet */
 977                         int len)                        /* iso packet length */
 978 {
 979         int i;
 980         struct sd *sd = (struct sd *) gspca_dev;
 981
 982         /* frames start with:
 983          *      ff ff 00 c4 c4 96       synchro
 984          *      00              (unknown)
 985          *      xx              (frame sequence / size / compression)
 986          *      (xx)            (idem - extra byte for sn9c103)
 987          *      ll mm           brightness sum inside auto exposure
 988          *      ll mm           brightness sum outside auto exposure
 989          *      (xx xx xx xx xx)        audio values for snc103
 990          */
 991         if (len > 6 && len < 24) {
 992                 for (i = 0; i < len - 6; i++) {
 993                         if (data[0 + i] == 0xff
 994                             && data[1 + i] == 0xff
 995                             && data[2 + i] == 0x00
 996                             && data[3 + i] == 0xc4
 997                             && data[4 + i] == 0xc4
 998                             && data[5 + i] == 0x96) {   /* start of frame */
 999                                 int lum = -1;
1000                                 int pkt_type = LAST_PACKET;
1001
1002                                 if (len - i < sd->fr_h_sz) {
1003                                         PDEBUG(D_STREAM, "packet too short to"
1004                                                 " get avg brightness");
1005                                 } else if (sd->fr_h_sz == 12) {
1006                                         lum = data[i + 8] + (data[i + 9] << 8);
1007                                 } else {
1008                                         lum = data[i + 9] +
1009                                                 (data[i + 10] << 8);
1010                                 }
1011                                 if (lum == 0) {
1012                                         lum = -1;
1013                                         sd->frames_to_drop = 2;
1014                                 }
1015                                 atomic_set(&sd->avg_lum, lum);
1016
1017                                 if (sd->frames_to_drop) {
1018                                         sd->frames_to_drop--;
1019                                         pkt_type = DISCARD_PACKET;
1020                                 }
1021
1022                                 frame = gspca_frame_add(gspca_dev, pkt_type,
1023                                                         frame, data, 0);
1024                                 data += i + sd->fr_h_sz;
1025                                 len -= i + sd->fr_h_sz;
1026                                 gspca_frame_add(gspca_dev, FIRST_PACKET,
1027                                                 frame, data, len);
1028                                 return;
1029                         }
1030                 }
1031         }
1032         gspca_frame_add(gspca_dev, INTER_PACKET,
1033                         frame, data, len);
1034 }
1035
1036 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
1037 {
1038         struct sd *sd = (struct sd *) gspca_dev;
1039
1040         sd->brightness = val;
1041         if (gspca_dev->streaming)
1042                 setbrightness(gspca_dev);
1043         return 0;
1044 }
1045
1046 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
1047 {
1048         struct sd *sd = (struct sd *) gspca_dev;
1049
1050         *val = sd->brightness;
1051         return 0;
1052 }
1053
1054 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
1055 {
1056         struct sd *sd = (struct sd *) gspca_dev;
1057
1058         sd->gain = val;
1059         if (gspca_dev->streaming)
1060                 setgain(gspca_dev);
1061         return 0;
1062 }
1063
1064 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
1065 {
1066         struct sd *sd = (struct sd *) gspca_dev;
1067
1068         *val = sd->gain;
1069         return 0;
1070 }
1071
1072 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
1073 {
1074         struct sd *sd = (struct sd *) gspca_dev;
1075
1076         sd->exposure = val;
1077         if (gspca_dev->streaming)
1078                 setexposure(gspca_dev);
1079         return 0;
1080 }
1081
1082 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
1083 {
1084         struct sd *sd = (struct sd *) gspca_dev;
1085
1086         *val = sd->exposure;
1087         return 0;
1088 }
1089
1090 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
1091 {
1092         struct sd *sd = (struct sd *) gspca_dev;
1093
1094         sd->autogain = val;
1095         /* when switching to autogain set defaults to make sure
1096            we are on a valid point of the autogain gain /
1097            exposure knee graph, and give this change time to
1098            take effect before doing autogain. */
1099         if (sd->autogain) {
1100                 sd->exposure = EXPOSURE_DEF;
1101                 sd->gain = GAIN_DEF;
1102                 if (gspca_dev->streaming) {
1103                         sd->autogain_ignore_frames = AUTOGAIN_IGNORE_FRAMES;
1104                         setexposure(gspca_dev);
1105                         setgain(gspca_dev);
1106                 }
1107         }
1108
1109         return 0;
1110 }
1111
1112 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
1113 {
1114         struct sd *sd = (struct sd *) gspca_dev;
1115
1116         *val = sd->autogain;
1117         return 0;
1118 }
1119
1120 static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val)
1121 {
1122         struct sd *sd = (struct sd *) gspca_dev;
1123
1124         sd->freq = val;
1125         if (gspca_dev->streaming)
1126                 setfreq(gspca_dev);
1127         return 0;
1128 }
1129
1130 static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val)
1131 {
1132         struct sd *sd = (struct sd *) gspca_dev;
1133
1134         *val = sd->freq;
1135         return 0;
1136 }
1137
1138 static int sd_querymenu(struct gspca_dev *gspca_dev,
1139                         struct v4l2_querymenu *menu)
1140 {
1141         switch (menu->id) {
1142         case V4L2_CID_POWER_LINE_FREQUENCY:
1143                 switch (menu->index) {
1144                 case 0:         /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
1145                         strcpy((char *) menu->name, "NoFliker");
1146                         return 0;
1147                 case 1:         /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
1148                         strcpy((char *) menu->name, "50 Hz");
1149                         return 0;
1150                 case 2:         /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
1151                         strcpy((char *) menu->name, "60 Hz");
1152                         return 0;
1153                 }
1154                 break;
1155         }
1156         return -EINVAL;
1157 }
1158
1159 /* sub-driver description */
1160 static const struct sd_desc sd_desc = {
1161         .name = MODULE_NAME,
1162         .ctrls = sd_ctrls,
1163         .nctrls = ARRAY_SIZE(sd_ctrls),
1164         .config = sd_config,
1165         .open = sd_open,
1166         .start = sd_start,
1167         .stopN = sd_stopN,
1168         .stop0 = sd_stop0,
1169         .close = sd_close,
1170         .pkt_scan = sd_pkt_scan,
1171         .querymenu = sd_querymenu,
1172 };
1173
1174 /* -- module initialisation -- */
1175 #define SFCI(sensor, flags, nctrls, i2c_addr) \
1176         .driver_info = (SENSOR_ ## sensor << 24) \
1177                         | ((flags) << 16) \
1178                         | ((nctrls) << 8) \
1179                         | (i2c_addr)
1180 static __devinitdata struct usb_device_id device_table[] = {
1181 #ifndef CONFIG_USB_SN9C102
1182         {USB_DEVICE(0x0c45, 0x6001),                    /* SN9C102 */
1183                         SFCI(TAS5110, F_GAIN|F_AUTO|F_SIF, 4, 0)},
1184         {USB_DEVICE(0x0c45, 0x6005),                    /* SN9C101 */
1185                         SFCI(TAS5110, F_GAIN|F_AUTO|F_SIF, 4, 0)},
1186         {USB_DEVICE(0x0c45, 0x6007),                    /* SN9C101 */
1187                         SFCI(TAS5110, F_GAIN|F_AUTO|F_SIF, 4, 0)},
1188         {USB_DEVICE(0x0c45, 0x6009),                    /* SN9C101 */
1189                         SFCI(PAS106, F_SIF, 2, 0)},
1190         {USB_DEVICE(0x0c45, 0x600d),                    /* SN9C101 */
1191                         SFCI(PAS106, F_SIF, 2, 0)},
1192 #endif
1193         {USB_DEVICE(0x0c45, 0x6011),            /* SN9C101 - SN9C101G */
1194                         SFCI(OV6650, F_GAIN|F_AUTO|F_SIF, 5, 0x60)},
1195 #ifndef CONFIG_USB_SN9C102
1196         {USB_DEVICE(0x0c45, 0x6019),                    /* SN9C101 */
1197                         SFCI(OV7630, F_GAIN|F_AUTO, 5, 0x21)},
1198         {USB_DEVICE(0x0c45, 0x6024),                    /* SN9C102 */
1199                         SFCI(TAS5130CXX, 0, 2, 0)},
1200         {USB_DEVICE(0x0c45, 0x6025),                    /* SN9C102 */
1201                         SFCI(TAS5130CXX, 0, 2, 0)},
1202         {USB_DEVICE(0x0c45, 0x6028),                    /* SN9C102 */
1203                         SFCI(PAS202, 0, 2, 0)},
1204         {USB_DEVICE(0x0c45, 0x6029),                    /* SN9C101 */
1205                         SFCI(PAS106, F_SIF, 2, 0)},
1206         {USB_DEVICE(0x0c45, 0x602c),                    /* SN9C102 */
1207                         SFCI(OV7630, F_GAIN|F_AUTO, 5, 0x21)},
1208         {USB_DEVICE(0x0c45, 0x602d),                    /* SN9C102 */
1209                         SFCI(HV7131R, 0, 2, 0)},
1210         {USB_DEVICE(0x0c45, 0x602e),                    /* SN9C102 */
1211                         SFCI(OV7630, F_GAIN|F_AUTO, 5, 0x21)},
1212         {USB_DEVICE(0x0c45, 0x60af),                    /* SN9C103 */
1213                         SFCI(PAS202, F_H18, 2, 0)},
1214         {USB_DEVICE(0x0c45, 0x60b0),                    /* SN9C103 */
1215                         SFCI(OV7630, F_GAIN|F_AUTO|F_H18, 5, 0x21)},
1216 #endif
1217         {}
1218 };
1219 MODULE_DEVICE_TABLE(usb, device_table);
1220
1221 /* -- device connect -- */
1222 static int sd_probe(struct usb_interface *intf,
1223                         const struct usb_device_id *id)
1224 {
1225         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1226                                 THIS_MODULE);
1227 }
1228
1229 static struct usb_driver sd_driver = {
1230         .name = MODULE_NAME,
1231         .id_table = device_table,
1232         .probe = sd_probe,
1233         .disconnect = gspca_disconnect,
1234 };
1235
1236 /* -- module insert / remove -- */
1237 static int __init sd_mod_init(void)
1238 {
1239         if (usb_register(&sd_driver) < 0)
1240                 return -1;
1241         PDEBUG(D_PROBE, "registered");
1242         return 0;
1243 }
1244 static void __exit sd_mod_exit(void)
1245 {
1246         usb_deregister(&sd_driver);
1247         PDEBUG(D_PROBE, "deregistered");
1248 }
1249
1250 module_init(sd_mod_init);
1251 module_exit(sd_mod_exit);