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   1 /*
   2  * tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
   3  *
   4  * Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
   5  * This code is placed under the terms of the GNU General Public License v2
   6  */
   7
   8 #include <linux/i2c.h>
   9 #include <linux/videodev2.h>
  10 #include <linux/delay.h>
  11 #include <media/v4l2-device.h>
  12 #include <media/tvp5150.h>
  13 #include <media/v4l2-i2c-drv.h>
  14 #include <media/v4l2-chip-ident.h>
  15
  16 #include "tvp5150_reg.h"
  17
  18 MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
  19 MODULE_AUTHOR("Mauro Carvalho Chehab");
  20 MODULE_LICENSE("GPL");
  21
  22
  23 static int debug;
  24 module_param(debug, int, 0);
  25 MODULE_PARM_DESC(debug, "Debug level (0-2)");
  26
  27 /* supported controls */
  28 static struct v4l2_queryctrl tvp5150_qctrl[] = {
  29         {
  30                 .id = V4L2_CID_BRIGHTNESS,
  31                 .type = V4L2_CTRL_TYPE_INTEGER,
  32                 .name = "Brightness",
  33                 .minimum = 0,
  34                 .maximum = 255,
  35                 .step = 1,
  36                 .default_value = 128,
  37                 .flags = 0,
  38         }, {
  39                 .id = V4L2_CID_CONTRAST,
  40                 .type = V4L2_CTRL_TYPE_INTEGER,
  41                 .name = "Contrast",
  42                 .minimum = 0,
  43                 .maximum = 255,
  44                 .step = 0x1,
  45                 .default_value = 128,
  46                 .flags = 0,
  47         }, {
  48                  .id = V4L2_CID_SATURATION,
  49                  .type = V4L2_CTRL_TYPE_INTEGER,
  50                  .name = "Saturation",
  51                  .minimum = 0,
  52                  .maximum = 255,
  53                  .step = 0x1,
  54                  .default_value = 128,
  55                  .flags = 0,
  56         }, {
  57                 .id = V4L2_CID_HUE,
  58                 .type = V4L2_CTRL_TYPE_INTEGER,
  59                 .name = "Hue",
  60                 .minimum = -128,
  61                 .maximum = 127,
  62                 .step = 0x1,
  63                 .default_value = 0,
  64                 .flags = 0,
  65         }
  66 };
  67
  68 struct tvp5150 {
  69         struct v4l2_subdev sd;
  70
  71         v4l2_std_id norm;       /* Current set standard */
  72         u32 input;
  73         u32 output;
  74         int enable;
  75         int bright;
  76         int contrast;
  77         int hue;
  78         int sat;
  79 };
  80
  81 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
  82 {
  83         return container_of(sd, struct tvp5150, sd);
  84 }
  85
  86 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
  87 {
  88         struct i2c_client *c = v4l2_get_subdevdata(sd);
  89         unsigned char buffer[1];
  90         int rc;
  91
  92         buffer[0] = addr;
  93         if (1 != (rc = i2c_master_send(c, buffer, 1)))
  94                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
  95
  96         msleep(10);
  97
  98         if (1 != (rc = i2c_master_recv(c, buffer, 1)))
  99                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
 100
 101         v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);
 102
 103         return (buffer[0]);
 104 }
 105
 106 static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
 107                                  unsigned char value)
 108 {
 109         struct i2c_client *c = v4l2_get_subdevdata(sd);
 110         unsigned char buffer[2];
 111         int rc;
 112
 113         buffer[0] = addr;
 114         buffer[1] = value;
 115         v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 116         if (2 != (rc = i2c_master_send(c, buffer, 2)))
 117                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 2)\n", rc);
 118 }
 119
 120 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
 121                                 const u8 end, int max_line)
 122 {
 123         int i = 0;
 124
 125         while (init != (u8)(end + 1)) {
 126                 if ((i % max_line) == 0) {
 127                         if (i > 0)
 128                                 printk("\n");
 129                         printk("tvp5150: %s reg 0x%02x = ", s, init);
 130                 }
 131                 printk("%02x ", tvp5150_read(sd, init));
 132
 133                 init++;
 134                 i++;
 135         }
 136         printk("\n");
 137 }
 138
 139 static int tvp5150_log_status(struct v4l2_subdev *sd)
 140 {
 141         printk("tvp5150: Video input source selection #1 = 0x%02x\n",
 142                         tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
 143         printk("tvp5150: Analog channel controls = 0x%02x\n",
 144                         tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
 145         printk("tvp5150: Operation mode controls = 0x%02x\n",
 146                         tvp5150_read(sd, TVP5150_OP_MODE_CTL));
 147         printk("tvp5150: Miscellaneous controls = 0x%02x\n",
 148                         tvp5150_read(sd, TVP5150_MISC_CTL));
 149         printk("tvp5150: Autoswitch mask= 0x%02x\n",
 150                         tvp5150_read(sd, TVP5150_AUTOSW_MSK));
 151         printk("tvp5150: Color killer threshold control = 0x%02x\n",
 152                         tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
 153         printk("tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
 154                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
 155                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
 156                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
 157         printk("tvp5150: Brightness control = 0x%02x\n",
 158                         tvp5150_read(sd, TVP5150_BRIGHT_CTL));
 159         printk("tvp5150: Color saturation control = 0x%02x\n",
 160                         tvp5150_read(sd, TVP5150_SATURATION_CTL));
 161         printk("tvp5150: Hue control = 0x%02x\n",
 162                         tvp5150_read(sd, TVP5150_HUE_CTL));
 163         printk("tvp5150: Contrast control = 0x%02x\n",
 164                         tvp5150_read(sd, TVP5150_CONTRAST_CTL));
 165         printk("tvp5150: Outputs and data rates select = 0x%02x\n",
 166                         tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
 167         printk("tvp5150: Configuration shared pins = 0x%02x\n",
 168                         tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
 169         printk("tvp5150: Active video cropping start = 0x%02x%02x\n",
 170                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
 171                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
 172         printk("tvp5150: Active video cropping stop  = 0x%02x%02x\n",
 173                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
 174                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
 175         printk("tvp5150: Genlock/RTC = 0x%02x\n",
 176                         tvp5150_read(sd, TVP5150_GENLOCK));
 177         printk("tvp5150: Horizontal sync start = 0x%02x\n",
 178                         tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
 179         printk("tvp5150: Vertical blanking start = 0x%02x\n",
 180                         tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
 181         printk("tvp5150: Vertical blanking stop = 0x%02x\n",
 182                         tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
 183         printk("tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
 184                         tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
 185                         tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
 186         printk("tvp5150: Interrupt reset register B = 0x%02x\n",
 187                         tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
 188         printk("tvp5150: Interrupt enable register B = 0x%02x\n",
 189                         tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
 190         printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
 191                         tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
 192         printk("tvp5150: Video standard = 0x%02x\n",
 193                         tvp5150_read(sd, TVP5150_VIDEO_STD));
 194         printk("tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
 195                         tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
 196                         tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
 197         printk("tvp5150: Macrovision on counter = 0x%02x\n",
 198                         tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
 199         printk("tvp5150: Macrovision off counter = 0x%02x\n",
 200                         tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
 201         printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
 202                         (tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
 203         printk("tvp5150: Device ID = %02x%02x\n",
 204                         tvp5150_read(sd, TVP5150_MSB_DEV_ID),
 205                         tvp5150_read(sd, TVP5150_LSB_DEV_ID));
 206         printk("tvp5150: ROM version = (hex) %02x.%02x\n",
 207                         tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
 208                         tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
 209         printk("tvp5150: Vertical line count = 0x%02x%02x\n",
 210                         tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
 211                         tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
 212         printk("tvp5150: Interrupt status register B = 0x%02x\n",
 213                         tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
 214         printk("tvp5150: Interrupt active register B = 0x%02x\n",
 215                         tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
 216         printk("tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
 217                         tvp5150_read(sd, TVP5150_STATUS_REG_1),
 218                         tvp5150_read(sd, TVP5150_STATUS_REG_2),
 219                         tvp5150_read(sd, TVP5150_STATUS_REG_3),
 220                         tvp5150_read(sd, TVP5150_STATUS_REG_4),
 221                         tvp5150_read(sd, TVP5150_STATUS_REG_5));
 222
 223         dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
 224                         TVP5150_TELETEXT_FIL1_END, 8);
 225         dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
 226                         TVP5150_TELETEXT_FIL2_END, 8);
 227
 228         printk("tvp5150: Teletext filter enable = 0x%02x\n",
 229                         tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
 230         printk("tvp5150: Interrupt status register A = 0x%02x\n",
 231                         tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
 232         printk("tvp5150: Interrupt enable register A = 0x%02x\n",
 233                         tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
 234         printk("tvp5150: Interrupt configuration = 0x%02x\n",
 235                         tvp5150_read(sd, TVP5150_INT_CONF));
 236         printk("tvp5150: VDP status register = 0x%02x\n",
 237                         tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
 238         printk("tvp5150: FIFO word count = 0x%02x\n",
 239                         tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
 240         printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
 241                         tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
 242         printk("tvp5150: FIFO reset = 0x%02x\n",
 243                         tvp5150_read(sd, TVP5150_FIFO_RESET));
 244         printk("tvp5150: Line number interrupt = 0x%02x\n",
 245                         tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
 246         printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
 247                         tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
 248                         tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
 249         printk("tvp5150: FIFO output control = 0x%02x\n",
 250                         tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
 251         printk("tvp5150: Full field enable = 0x%02x\n",
 252                         tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
 253         printk("tvp5150: Full field mode register = 0x%02x\n",
 254                         tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
 255
 256         dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
 257                         TVP5150_CC_DATA_END, 8);
 258
 259         dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
 260                         TVP5150_WSS_DATA_END, 8);
 261
 262         dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
 263                         TVP5150_VPS_DATA_END, 8);
 264
 265         dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
 266                         TVP5150_VITC_DATA_END, 10);
 267
 268         dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
 269                         TVP5150_LINE_MODE_END, 8);
 270         return 0;
 271 }
 272
 273 /****************************************************************************
 274                         Basic functions
 275  ****************************************************************************/
 276
 277 static inline void tvp5150_selmux(struct v4l2_subdev *sd)
 278 {
 279         int opmode=0;
 280         struct tvp5150 *decoder = to_tvp5150(sd);
 281         int input = 0;
 282         unsigned char val;
 283
 284         if ((decoder->output & TVP5150_BLACK_SCREEN) || !decoder->enable)
 285                 input = 8;
 286
 287         switch (decoder->input) {
 288         case TVP5150_COMPOSITE1:
 289                 input |= 2;
 290                 /* fall through */
 291         case TVP5150_COMPOSITE0:
 292                 opmode=0x30;            /* TV Mode */
 293                 break;
 294         case TVP5150_SVIDEO:
 295         default:
 296                 input |= 1;
 297                 opmode=0;               /* Auto Mode */
 298                 break;
 299         }
 300
 301         v4l2_dbg(1, debug, sd, "Selecting video route: route input=%i, output=%i "
 302                         "=> tvp5150 input=%i, opmode=%i\n",
 303                         decoder->input, decoder->output,
 304                         input, opmode);
 305
 306         tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
 307         tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
 308
 309         /* Svideo should enable YCrCb output and disable GPCL output
 310          * For Composite and TV, it should be the reverse
 311          */
 312         val = tvp5150_read(sd, TVP5150_MISC_CTL);
 313         if (decoder->input == TVP5150_SVIDEO)
 314                 val = (val & ~0x40) | 0x10;
 315         else
 316                 val = (val & ~0x10) | 0x40;
 317         tvp5150_write(sd, TVP5150_MISC_CTL, val);
 318 };
 319
 320 struct i2c_reg_value {
 321         unsigned char reg;
 322         unsigned char value;
 323 };
 324
 325 /* Default values as sugested at TVP5150AM1 datasheet */
 326 static const struct i2c_reg_value tvp5150_init_default[] = {
 327         { /* 0x00 */
 328                 TVP5150_VD_IN_SRC_SEL_1,0x00
 329         },
 330         { /* 0x01 */
 331                 TVP5150_ANAL_CHL_CTL,0x15
 332         },
 333         { /* 0x02 */
 334                 TVP5150_OP_MODE_CTL,0x00
 335         },
 336         { /* 0x03 */
 337                 TVP5150_MISC_CTL,0x01
 338         },
 339         { /* 0x06 */
 340                 TVP5150_COLOR_KIL_THSH_CTL,0x10
 341         },
 342         { /* 0x07 */
 343                 TVP5150_LUMA_PROC_CTL_1,0x60
 344         },
 345         { /* 0x08 */
 346                 TVP5150_LUMA_PROC_CTL_2,0x00
 347         },
 348         { /* 0x09 */
 349                 TVP5150_BRIGHT_CTL,0x80
 350         },
 351         { /* 0x0a */
 352                 TVP5150_SATURATION_CTL,0x80
 353         },
 354         { /* 0x0b */
 355                 TVP5150_HUE_CTL,0x00
 356         },
 357         { /* 0x0c */
 358                 TVP5150_CONTRAST_CTL,0x80
 359         },
 360         { /* 0x0d */
 361                 TVP5150_DATA_RATE_SEL,0x47
 362         },
 363         { /* 0x0e */
 364                 TVP5150_LUMA_PROC_CTL_3,0x00
 365         },
 366         { /* 0x0f */
 367                 TVP5150_CONF_SHARED_PIN,0x08
 368         },
 369         { /* 0x11 */
 370                 TVP5150_ACT_VD_CROP_ST_MSB,0x00
 371         },
 372         { /* 0x12 */
 373                 TVP5150_ACT_VD_CROP_ST_LSB,0x00
 374         },
 375         { /* 0x13 */
 376                 TVP5150_ACT_VD_CROP_STP_MSB,0x00
 377         },
 378         { /* 0x14 */
 379                 TVP5150_ACT_VD_CROP_STP_LSB,0x00
 380         },
 381         { /* 0x15 */
 382                 TVP5150_GENLOCK,0x01
 383         },
 384         { /* 0x16 */
 385                 TVP5150_HORIZ_SYNC_START,0x80
 386         },
 387         { /* 0x18 */
 388                 TVP5150_VERT_BLANKING_START,0x00
 389         },
 390         { /* 0x19 */
 391                 TVP5150_VERT_BLANKING_STOP,0x00
 392         },
 393         { /* 0x1a */
 394                 TVP5150_CHROMA_PROC_CTL_1,0x0c
 395         },
 396         { /* 0x1b */
 397                 TVP5150_CHROMA_PROC_CTL_2,0x14
 398         },
 399         { /* 0x1c */
 400                 TVP5150_INT_RESET_REG_B,0x00
 401         },
 402         { /* 0x1d */
 403                 TVP5150_INT_ENABLE_REG_B,0x00
 404         },
 405         { /* 0x1e */
 406                 TVP5150_INTT_CONFIG_REG_B,0x00
 407         },
 408         { /* 0x28 */
 409                 TVP5150_VIDEO_STD,0x00
 410         },
 411         { /* 0x2e */
 412                 TVP5150_MACROVISION_ON_CTR,0x0f
 413         },
 414         { /* 0x2f */
 415                 TVP5150_MACROVISION_OFF_CTR,0x01
 416         },
 417         { /* 0xbb */
 418                 TVP5150_TELETEXT_FIL_ENA,0x00
 419         },
 420         { /* 0xc0 */
 421                 TVP5150_INT_STATUS_REG_A,0x00
 422         },
 423         { /* 0xc1 */
 424                 TVP5150_INT_ENABLE_REG_A,0x00
 425         },
 426         { /* 0xc2 */
 427                 TVP5150_INT_CONF,0x04
 428         },
 429         { /* 0xc8 */
 430                 TVP5150_FIFO_INT_THRESHOLD,0x80
 431         },
 432         { /* 0xc9 */
 433                 TVP5150_FIFO_RESET,0x00
 434         },
 435         { /* 0xca */
 436                 TVP5150_LINE_NUMBER_INT,0x00
 437         },
 438         { /* 0xcb */
 439                 TVP5150_PIX_ALIGN_REG_LOW,0x4e
 440         },
 441         { /* 0xcc */
 442                 TVP5150_PIX_ALIGN_REG_HIGH,0x00
 443         },
 444         { /* 0xcd */
 445                 TVP5150_FIFO_OUT_CTRL,0x01
 446         },
 447         { /* 0xcf */
 448                 TVP5150_FULL_FIELD_ENA,0x00
 449         },
 450         { /* 0xd0 */
 451                 TVP5150_LINE_MODE_INI,0x00
 452         },
 453         { /* 0xfc */
 454                 TVP5150_FULL_FIELD_MODE_REG,0x7f
 455         },
 456         { /* end of data */
 457                 0xff,0xff
 458         }
 459 };
 460
 461 /* Default values as sugested at TVP5150AM1 datasheet */
 462 static const struct i2c_reg_value tvp5150_init_enable[] = {
 463         {
 464                 TVP5150_CONF_SHARED_PIN, 2
 465         },{     /* Automatic offset and AGC enabled */
 466                 TVP5150_ANAL_CHL_CTL, 0x15
 467         },{     /* Activate YCrCb output 0x9 or 0xd ? */
 468                 TVP5150_MISC_CTL, 0x6f
 469         },{     /* Activates video std autodetection for all standards */
 470                 TVP5150_AUTOSW_MSK, 0x0
 471         },{     /* Default format: 0x47. For 4:2:2: 0x40 */
 472                 TVP5150_DATA_RATE_SEL, 0x47
 473         },{
 474                 TVP5150_CHROMA_PROC_CTL_1, 0x0c
 475         },{
 476                 TVP5150_CHROMA_PROC_CTL_2, 0x54
 477         },{     /* Non documented, but initialized on WinTV USB2 */
 478                 0x27, 0x20
 479         },{
 480                 0xff,0xff
 481         }
 482 };
 483
 484 struct tvp5150_vbi_type {
 485         unsigned int vbi_type;
 486         unsigned int ini_line;
 487         unsigned int end_line;
 488         unsigned int by_field :1;
 489 };
 490
 491 struct i2c_vbi_ram_value {
 492         u16 reg;
 493         struct tvp5150_vbi_type type;
 494         unsigned char values[16];
 495 };
 496
 497 /* This struct have the values for each supported VBI Standard
 498  * by
 499  tvp5150_vbi_types should follow the same order as vbi_ram_default
 500  * value 0 means rom position 0x10, value 1 means rom position 0x30
 501  * and so on. There are 16 possible locations from 0 to 15.
 502  */
 503
 504 static struct i2c_vbi_ram_value vbi_ram_default[] =
 505 {
 506         /* FIXME: Current api doesn't handle all VBI types, those not
 507            yet supported are placed under #if 0 */
 508 #if 0
 509         {0x010, /* Teletext, SECAM, WST System A */
 510                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
 511                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
 512                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
 513         },
 514 #endif
 515         {0x030, /* Teletext, PAL, WST System B */
 516                 {V4L2_SLICED_TELETEXT_B,6,22,1},
 517                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
 518                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
 519         },
 520 #if 0
 521         {0x050, /* Teletext, PAL, WST System C */
 522                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
 523                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 524                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 525         },
 526         {0x070, /* Teletext, NTSC, WST System B */
 527                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
 528                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
 529                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 530         },
 531         {0x090, /* Tetetext, NTSC NABTS System C */
 532                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
 533                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 534                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
 535         },
 536         {0x0b0, /* Teletext, NTSC-J, NABTS System D */
 537                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
 538                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
 539                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 540         },
 541         {0x0d0, /* Closed Caption, PAL/SECAM */
 542                 {V4L2_SLICED_CAPTION_625,22,22,1},
 543                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 544                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 545         },
 546 #endif
 547         {0x0f0, /* Closed Caption, NTSC */
 548                 {V4L2_SLICED_CAPTION_525,21,21,1},
 549                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 550                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 551         },
 552         {0x110, /* Wide Screen Signal, PAL/SECAM */
 553                 {V4L2_SLICED_WSS_625,23,23,1},
 554                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
 555                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
 556         },
 557 #if 0
 558         {0x130, /* Wide Screen Signal, NTSC C */
 559                 {V4L2_SLICED_WSS_525,20,20,1},
 560                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
 561                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
 562         },
 563         {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
 564                 {V4l2_SLICED_VITC_625,6,22,0},
 565                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 566                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 567         },
 568         {0x170, /* Vertical Interval Timecode (VITC), NTSC */
 569                 {V4l2_SLICED_VITC_525,10,20,0},
 570                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 571                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 572         },
 573 #endif
 574         {0x190, /* Video Program System (VPS), PAL */
 575                 {V4L2_SLICED_VPS,16,16,0},
 576                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
 577                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
 578         },
 579         /* 0x1d0 User programmable */
 580
 581         /* End of struct */
 582         { (u16)-1 }
 583 };
 584
 585 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 586                                 const struct i2c_reg_value *regs)
 587 {
 588         while (regs->reg != 0xff) {
 589                 tvp5150_write(sd, regs->reg, regs->value);
 590                 regs++;
 591         }
 592         return 0;
 593 }
 594
 595 static int tvp5150_vdp_init(struct v4l2_subdev *sd,
 596                                 const struct i2c_vbi_ram_value *regs)
 597 {
 598         unsigned int i;
 599
 600         /* Disable Full Field */
 601         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 602
 603         /* Before programming, Line mode should be at 0xff */
 604         for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 605                 tvp5150_write(sd, i, 0xff);
 606
 607         /* Load Ram Table */
 608         while (regs->reg != (u16)-1) {
 609                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 610                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 611
 612                 for (i = 0; i < 16; i++)
 613                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 614
 615                 regs++;
 616         }
 617         return 0;
 618 }
 619
 620 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 621 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 622                                 struct v4l2_sliced_vbi_cap *cap)
 623 {
 624         const struct i2c_vbi_ram_value *regs = vbi_ram_default;
 625         int line;
 626
 627         v4l2_dbg(1, debug, sd, "g_sliced_vbi_cap\n");
 628         memset(cap, 0, sizeof *cap);
 629
 630         while (regs->reg != (u16)-1 ) {
 631                 for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
 632                         cap->service_lines[0][line] |= regs->type.vbi_type;
 633                 }
 634                 cap->service_set |= regs->type.vbi_type;
 635
 636                 regs++;
 637         }
 638         return 0;
 639 }
 640
 641 /* Set vbi processing
 642  * type - one of tvp5150_vbi_types
 643  * line - line to gather data
 644  * fields: bit 0 field1, bit 1, field2
 645  * flags (default=0xf0) is a bitmask, were set means:
 646  *      bit 7: enable filtering null bytes on CC
 647  *      bit 6: send data also to FIFO
 648  *      bit 5: don't allow data with errors on FIFO
 649  *      bit 4: enable ECC when possible
 650  * pix_align = pix alignment:
 651  *      LSB = field1
 652  *      MSB = field2
 653  */
 654 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 655                         const struct i2c_vbi_ram_value *regs,
 656                         unsigned int type,u8 flags, int line,
 657                         const int fields)
 658 {
 659         struct tvp5150 *decoder = to_tvp5150(sd);
 660         v4l2_std_id std = decoder->norm;
 661         u8 reg;
 662         int pos=0;
 663
 664         if (std == V4L2_STD_ALL) {
 665                 v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
 666                 return 0;
 667         } else if (std & V4L2_STD_625_50) {
 668                 /* Don't follow NTSC Line number convension */
 669                 line += 3;
 670         }
 671
 672         if (line<6||line>27)
 673                 return 0;
 674
 675         while (regs->reg != (u16)-1 ) {
 676                 if ((type & regs->type.vbi_type) &&
 677                     (line>=regs->type.ini_line) &&
 678                     (line<=regs->type.end_line)) {
 679                         type=regs->type.vbi_type;
 680                         break;
 681                 }
 682
 683                 regs++;
 684                 pos++;
 685         }
 686         if (regs->reg == (u16)-1)
 687                 return 0;
 688
 689         type=pos | (flags & 0xf0);
 690         reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
 691
 692         if (fields&1) {
 693                 tvp5150_write(sd, reg, type);
 694         }
 695
 696         if (fields&2) {
 697                 tvp5150_write(sd, reg+1, type);
 698         }
 699
 700         return type;
 701 }
 702
 703 static int tvp5150_get_vbi(struct v4l2_subdev *sd,
 704                         const struct i2c_vbi_ram_value *regs, int line)
 705 {
 706         struct tvp5150 *decoder = to_tvp5150(sd);
 707         v4l2_std_id std = decoder->norm;
 708         u8 reg;
 709         int pos, type = 0;
 710
 711         if (std == V4L2_STD_ALL) {
 712                 v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
 713                 return 0;
 714         } else if (std & V4L2_STD_625_50) {
 715                 /* Don't follow NTSC Line number convension */
 716                 line += 3;
 717         }
 718
 719         if (line < 6 || line > 27)
 720                 return 0;
 721
 722         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 723
 724         pos = tvp5150_read(sd, reg) & 0x0f;
 725         if (pos < 0x0f)
 726                 type = regs[pos].type.vbi_type;
 727
 728         pos = tvp5150_read(sd, reg + 1) & 0x0f;
 729         if (pos < 0x0f)
 730                 type |= regs[pos].type.vbi_type;
 731
 732         return type;
 733 }
 734
 735 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 736 {
 737         struct tvp5150 *decoder = to_tvp5150(sd);
 738         int fmt = 0;
 739
 740         decoder->norm = std;
 741
 742         /* First tests should be against specific std */
 743
 744         if (std == V4L2_STD_ALL) {
 745                 fmt = 0;        /* Autodetect mode */
 746         } else if (std & V4L2_STD_NTSC_443) {
 747                 fmt = 0xa;
 748         } else if (std & V4L2_STD_PAL_M) {
 749                 fmt = 0x6;
 750         } else if (std & (V4L2_STD_PAL_N | V4L2_STD_PAL_Nc)) {
 751                 fmt = 0x8;
 752         } else {
 753                 /* Then, test against generic ones */
 754                 if (std & V4L2_STD_NTSC)
 755                         fmt = 0x2;
 756                 else if (std & V4L2_STD_PAL)
 757                         fmt = 0x4;
 758                 else if (std & V4L2_STD_SECAM)
 759                         fmt = 0xc;
 760         }
 761
 762         v4l2_dbg(1, debug, sd, "Set video std register to %d.\n", fmt);
 763         tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 764         return 0;
 765 }
 766
 767 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 768 {
 769         struct tvp5150 *decoder = to_tvp5150(sd);
 770
 771         if (decoder->norm == std)
 772                 return 0;
 773
 774         return tvp5150_set_std(sd, std);
 775 }
 776
 777 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 778 {
 779         struct tvp5150 *decoder = to_tvp5150(sd);
 780         u8 msb_id, lsb_id, msb_rom, lsb_rom;
 781
 782         msb_id = tvp5150_read(sd, TVP5150_MSB_DEV_ID);
 783         lsb_id = tvp5150_read(sd, TVP5150_LSB_DEV_ID);
 784         msb_rom = tvp5150_read(sd, TVP5150_ROM_MAJOR_VER);
 785         lsb_rom = tvp5150_read(sd, TVP5150_ROM_MINOR_VER);
 786
 787         if (msb_rom == 4 && lsb_rom == 0) { /* Is TVP5150AM1 */
 788                 v4l2_info(sd, "tvp%02x%02xam1 detected.\n", msb_id, lsb_id);
 789
 790                 /* ITU-T BT.656.4 timing */
 791                 tvp5150_write(sd, TVP5150_REV_SELECT, 0);
 792         } else {
 793                 if (msb_rom == 3 || lsb_rom == 0x21) { /* Is TVP5150A */
 794                         v4l2_info(sd, "tvp%02x%02xa detected.\n", msb_id, lsb_id);
 795                 } else {
 796                         v4l2_info(sd, "*** unknown tvp%02x%02x chip detected.\n",
 797                                         msb_id, lsb_id);
 798                         v4l2_info(sd, "*** Rom ver is %d.%d\n", msb_rom, lsb_rom);
 799                 }
 800         }
 801
 802         /* Initializes TVP5150 to its default values */
 803         tvp5150_write_inittab(sd, tvp5150_init_default);
 804
 805         /* Initializes VDP registers */
 806         tvp5150_vdp_init(sd, vbi_ram_default);
 807
 808         /* Selects decoder input */
 809         tvp5150_selmux(sd);
 810
 811         /* Initializes TVP5150 to stream enabled values */
 812         tvp5150_write_inittab(sd, tvp5150_init_enable);
 813
 814         /* Initialize image preferences */
 815         tvp5150_write(sd, TVP5150_BRIGHT_CTL, decoder->bright);
 816         tvp5150_write(sd, TVP5150_CONTRAST_CTL, decoder->contrast);
 817         tvp5150_write(sd, TVP5150_SATURATION_CTL, decoder->contrast);
 818         tvp5150_write(sd, TVP5150_HUE_CTL, decoder->hue);
 819
 820         tvp5150_set_std(sd, decoder->norm);
 821         return 0;
 822 };
 823
 824 static int tvp5150_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 825 {
 826         v4l2_dbg(1, debug, sd, "g_ctrl called\n");
 827
 828         switch (ctrl->id) {
 829         case V4L2_CID_BRIGHTNESS:
 830                 ctrl->value = tvp5150_read(sd, TVP5150_BRIGHT_CTL);
 831                 return 0;
 832         case V4L2_CID_CONTRAST:
 833                 ctrl->value = tvp5150_read(sd, TVP5150_CONTRAST_CTL);
 834                 return 0;
 835         case V4L2_CID_SATURATION:
 836                 ctrl->value = tvp5150_read(sd, TVP5150_SATURATION_CTL);
 837                 return 0;
 838         case V4L2_CID_HUE:
 839                 ctrl->value = tvp5150_read(sd, TVP5150_HUE_CTL);
 840                 return 0;
 841         }
 842         return -EINVAL;
 843 }
 844
 845 static int tvp5150_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 846 {
 847         u8 i, n;
 848         n = ARRAY_SIZE(tvp5150_qctrl);
 849
 850         for (i = 0; i < n; i++) {
 851                 if (ctrl->id != tvp5150_qctrl[i].id)
 852                         continue;
 853                 if (ctrl->value < tvp5150_qctrl[i].minimum ||
 854                     ctrl->value > tvp5150_qctrl[i].maximum)
 855                         return -ERANGE;
 856                 v4l2_dbg(1, debug, sd, "s_ctrl: id=%d, value=%d\n",
 857                                         ctrl->id, ctrl->value);
 858                 break;
 859         }
 860
 861         switch (ctrl->id) {
 862         case V4L2_CID_BRIGHTNESS:
 863                 tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->value);
 864                 return 0;
 865         case V4L2_CID_CONTRAST:
 866                 tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->value);
 867                 return 0;
 868         case V4L2_CID_SATURATION:
 869                 tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->value);
 870                 return 0;
 871         case V4L2_CID_HUE:
 872                 tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->value);
 873                 return 0;
 874         }
 875         return -EINVAL;
 876 }
 877
 878 /****************************************************************************
 879                         I2C Command
 880  ****************************************************************************/
 881
 882 static int tvp5150_s_routing(struct v4l2_subdev *sd,
 883                              u32 input, u32 output, u32 config)
 884 {
 885         struct tvp5150 *decoder = to_tvp5150(sd);
 886
 887         decoder->input = input;
 888         decoder->output = output;
 889         tvp5150_selmux(sd);
 890         return 0;
 891 }
 892
 893 static int tvp5150_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 894 {
 895         struct v4l2_sliced_vbi_format *svbi;
 896         int i;
 897
 898         /* raw vbi */
 899         if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 900                 /* this is for capturing 36 raw vbi lines
 901                    if there's a way to cut off the beginning 2 vbi lines
 902                    with the tvp5150 then the vbi line count could be lowered
 903                    to 17 lines/field again, although I couldn't find a register
 904                    which could do that cropping */
 905                 if (fmt->fmt.vbi.sample_format == V4L2_PIX_FMT_GREY)
 906                         tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
 907                 if (fmt->fmt.vbi.count[0] == 18 && fmt->fmt.vbi.count[1] == 18) {
 908                         tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
 909                         tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
 910                 }
 911                 return 0;
 912         }
 913         if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
 914                 return -EINVAL;
 915         svbi = &fmt->fmt.sliced;
 916         if (svbi->service_set != 0) {
 917                 for (i = 0; i <= 23; i++) {
 918                         svbi->service_lines[1][i] = 0;
 919                         svbi->service_lines[0][i] =
 920                                 tvp5150_set_vbi(sd, vbi_ram_default,
 921                                        svbi->service_lines[0][i], 0xf0, i, 3);
 922                 }
 923                 /* Enables FIFO */
 924                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
 925         } else {
 926                 /* Disables FIFO*/
 927                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
 928
 929                 /* Disable Full Field */
 930                 tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 931
 932                 /* Disable Line modes */
 933                 for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 934                         tvp5150_write(sd, i, 0xff);
 935         }
 936         return 0;
 937 }
 938
 939 static int tvp5150_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 940 {
 941         struct v4l2_sliced_vbi_format *svbi;
 942         int i, mask = 0;
 943
 944         if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
 945                 return -EINVAL;
 946         svbi = &fmt->fmt.sliced;
 947         memset(svbi, 0, sizeof(*svbi));
 948
 949         for (i = 0; i <= 23; i++) {
 950                 svbi->service_lines[0][i] =
 951                         tvp5150_get_vbi(sd, vbi_ram_default, i);
 952                 mask |= svbi->service_lines[0][i];
 953         }
 954         svbi->service_set = mask;
 955         return 0;
 956 }
 957
 958
 959 static int tvp5150_g_chip_ident(struct v4l2_subdev *sd,
 960                                 struct v4l2_dbg_chip_ident *chip)
 961 {
 962         int rev;
 963         struct i2c_client *client = v4l2_get_subdevdata(sd);
 964
 965         rev = tvp5150_read(sd, TVP5150_ROM_MAJOR_VER) << 8 |
 966               tvp5150_read(sd, TVP5150_ROM_MINOR_VER);
 967
 968         return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP5150,
 969                                           rev);
 970 }
 971
 972
 973 #ifdef CONFIG_VIDEO_ADV_DEBUG
 974 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 975 {
 976         struct i2c_client *client = v4l2_get_subdevdata(sd);
 977
 978         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 979                 return -EINVAL;
 980         if (!capable(CAP_SYS_ADMIN))
 981                 return -EPERM;
 982         reg->val = tvp5150_read(sd, reg->reg & 0xff);
 983         reg->size = 1;
 984         return 0;
 985 }
 986
 987 static int tvp5150_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 988 {
 989         struct i2c_client *client = v4l2_get_subdevdata(sd);
 990
 991         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 992                 return -EINVAL;
 993         if (!capable(CAP_SYS_ADMIN))
 994                 return -EPERM;
 995         tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
 996         return 0;
 997 }
 998 #endif
 999
1000 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1001 {
1002         int status = tvp5150_read(sd, 0x88);
1003
1004         vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1005         return 0;
1006 }
1007
1008 static int tvp5150_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
1009 {
1010         int i;
1011
1012         v4l2_dbg(1, debug, sd, "queryctrl called\n");
1013
1014         for (i = 0; i < ARRAY_SIZE(tvp5150_qctrl); i++)
1015                 if (qc->id && qc->id == tvp5150_qctrl[i].id) {
1016                         memcpy(qc, &(tvp5150_qctrl[i]),
1017                                sizeof(*qc));
1018                         return 0;
1019                 }
1020
1021         return -EINVAL;
1022 }
1023
1024 /* ----------------------------------------------------------------------- */
1025
1026 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1027         .log_status = tvp5150_log_status,
1028         .g_ctrl = tvp5150_g_ctrl,
1029         .s_ctrl = tvp5150_s_ctrl,
1030         .queryctrl = tvp5150_queryctrl,
1031         .s_std = tvp5150_s_std,
1032         .reset = tvp5150_reset,
1033         .g_chip_ident = tvp5150_g_chip_ident,
1034 #ifdef CONFIG_VIDEO_ADV_DEBUG
1035         .g_register = tvp5150_g_register,
1036         .s_register = tvp5150_s_register,
1037 #endif
1038 };
1039
1040 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1041         .g_tuner = tvp5150_g_tuner,
1042 };
1043
1044 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1045         .s_routing = tvp5150_s_routing,
1046         .g_fmt = tvp5150_g_fmt,
1047         .s_fmt = tvp5150_s_fmt,
1048         .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1049 };
1050
1051 static const struct v4l2_subdev_ops tvp5150_ops = {
1052         .core = &tvp5150_core_ops,
1053         .tuner = &tvp5150_tuner_ops,
1054         .video = &tvp5150_video_ops,
1055 };
1056
1057
1058 /****************************************************************************
1059                         I2C Client & Driver
1060  ****************************************************************************/
1061
1062 static int tvp5150_probe(struct i2c_client *c,
1063                          const struct i2c_device_id *id)
1064 {
1065         struct tvp5150 *core;
1066         struct v4l2_subdev *sd;
1067
1068         /* Check if the adapter supports the needed features */
1069         if (!i2c_check_functionality(c->adapter,
1070              I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1071                 return -EIO;
1072
1073         core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
1074         if (!core) {
1075                 return -ENOMEM;
1076         }
1077         sd = &core->sd;
1078         v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1079         v4l_info(c, "chip found @ 0x%02x (%s)\n",
1080                  c->addr << 1, c->adapter->name);
1081
1082         core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1083         core->input = TVP5150_COMPOSITE1;
1084         core->enable = 1;
1085         core->bright = 128;
1086         core->contrast = 128;
1087         core->hue = 0;
1088         core->sat = 128;
1089
1090         if (debug > 1)
1091                 tvp5150_log_status(sd);
1092         return 0;
1093 }
1094
1095 static int tvp5150_remove(struct i2c_client *c)
1096 {
1097         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1098
1099         v4l2_dbg(1, debug, sd,
1100                 "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1101                 c->addr << 1);
1102
1103         v4l2_device_unregister_subdev(sd);
1104         kfree(to_tvp5150(sd));
1105         return 0;
1106 }
1107
1108 /* ----------------------------------------------------------------------- */
1109
1110 static const struct i2c_device_id tvp5150_id[] = {
1111         { "tvp5150", 0 },
1112         { }
1113 };
1114 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1115
1116 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
1117         .name = "tvp5150",
1118         .probe = tvp5150_probe,
1119         .remove = tvp5150_remove,
1120         .id_table = tvp5150_id,
1121 };