drivers/media/video/tvp5150.c

   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         struct v4l2_routing route;
  73         int enable;
  74         int bright;
  75         int contrast;
  76         int hue;
  77         int sat;
  78 };
  79
  80 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
  81 {
  82         return container_of(sd, struct tvp5150, sd);
  83 }
  84
  85 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
  86 {
  87         struct i2c_client *c = v4l2_get_subdevdata(sd);
  88         unsigned char buffer[1];
  89         int rc;
  90
  91         buffer[0] = addr;
  92         if (1 != (rc = i2c_master_send(c, buffer, 1)))
  93                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
  94
  95         msleep(10);
  96
  97         if (1 != (rc = i2c_master_recv(c, buffer, 1)))
  98                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 1)\n", rc);
  99
 100         v4l2_dbg(2, debug, sd, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);
 101
 102         return (buffer[0]);
 103 }
 104
 105 static inline void tvp5150_write(struct v4l2_subdev *sd, unsigned char addr,
 106                                  unsigned char value)
 107 {
 108         struct i2c_client *c = v4l2_get_subdevdata(sd);
 109         unsigned char buffer[2];
 110         int rc;
 111
 112         buffer[0] = addr;
 113         buffer[1] = value;
 114         v4l2_dbg(2, debug, sd, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 115         if (2 != (rc = i2c_master_send(c, buffer, 2)))
 116                 v4l2_dbg(0, debug, sd, "i2c i/o error: rc == %d (should be 2)\n", rc);
 117 }
 118
 119 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
 120                                 const u8 end, int max_line)
 121 {
 122         int i = 0;
 123
 124         while (init != (u8)(end + 1)) {
 125                 if ((i % max_line) == 0) {
 126                         if (i > 0)
 127                                 printk("\n");
 128                         printk("tvp5150: %s reg 0x%02x = ", s, init);
 129                 }
 130                 printk("%02x ", tvp5150_read(sd, init));
 131
 132                 init++;
 133                 i++;
 134         }
 135         printk("\n");
 136 }
 137
 138 static int tvp5150_log_status(struct v4l2_subdev *sd)
 139 {
 140         printk("tvp5150: Video input source selection #1 = 0x%02x\n",
 141                         tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
 142         printk("tvp5150: Analog channel controls = 0x%02x\n",
 143                         tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
 144         printk("tvp5150: Operation mode controls = 0x%02x\n",
 145                         tvp5150_read(sd, TVP5150_OP_MODE_CTL));
 146         printk("tvp5150: Miscellaneous controls = 0x%02x\n",
 147                         tvp5150_read(sd, TVP5150_MISC_CTL));
 148         printk("tvp5150: Autoswitch mask= 0x%02x\n",
 149                         tvp5150_read(sd, TVP5150_AUTOSW_MSK));
 150         printk("tvp5150: Color killer threshold control = 0x%02x\n",
 151                         tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
 152         printk("tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
 153                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
 154                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
 155                         tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
 156         printk("tvp5150: Brightness control = 0x%02x\n",
 157                         tvp5150_read(sd, TVP5150_BRIGHT_CTL));
 158         printk("tvp5150: Color saturation control = 0x%02x\n",
 159                         tvp5150_read(sd, TVP5150_SATURATION_CTL));
 160         printk("tvp5150: Hue control = 0x%02x\n",
 161                         tvp5150_read(sd, TVP5150_HUE_CTL));
 162         printk("tvp5150: Contrast control = 0x%02x\n",
 163                         tvp5150_read(sd, TVP5150_CONTRAST_CTL));
 164         printk("tvp5150: Outputs and data rates select = 0x%02x\n",
 165                         tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
 166         printk("tvp5150: Configuration shared pins = 0x%02x\n",
 167                         tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
 168         printk("tvp5150: Active video cropping start = 0x%02x%02x\n",
 169                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
 170                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
 171         printk("tvp5150: Active video cropping stop  = 0x%02x%02x\n",
 172                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
 173                         tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
 174         printk("tvp5150: Genlock/RTC = 0x%02x\n",
 175                         tvp5150_read(sd, TVP5150_GENLOCK));
 176         printk("tvp5150: Horizontal sync start = 0x%02x\n",
 177                         tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
 178         printk("tvp5150: Vertical blanking start = 0x%02x\n",
 179                         tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
 180         printk("tvp5150: Vertical blanking stop = 0x%02x\n",
 181                         tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
 182         printk("tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
 183                         tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
 184                         tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
 185         printk("tvp5150: Interrupt reset register B = 0x%02x\n",
 186                         tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
 187         printk("tvp5150: Interrupt enable register B = 0x%02x\n",
 188                         tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
 189         printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
 190                         tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
 191         printk("tvp5150: Video standard = 0x%02x\n",
 192                         tvp5150_read(sd, TVP5150_VIDEO_STD));
 193         printk("tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
 194                         tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
 195                         tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
 196         printk("tvp5150: Macrovision on counter = 0x%02x\n",
 197                         tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
 198         printk("tvp5150: Macrovision off counter = 0x%02x\n",
 199                         tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
 200         printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
 201                         (tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
 202         printk("tvp5150: Device ID = %02x%02x\n",
 203                         tvp5150_read(sd, TVP5150_MSB_DEV_ID),
 204                         tvp5150_read(sd, TVP5150_LSB_DEV_ID));
 205         printk("tvp5150: ROM version = (hex) %02x.%02x\n",
 206                         tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
 207                         tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
 208         printk("tvp5150: Vertical line count = 0x%02x%02x\n",
 209                         tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
 210                         tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
 211         printk("tvp5150: Interrupt status register B = 0x%02x\n",
 212                         tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
 213         printk("tvp5150: Interrupt active register B = 0x%02x\n",
 214                         tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
 215         printk("tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
 216                         tvp5150_read(sd, TVP5150_STATUS_REG_1),
 217                         tvp5150_read(sd, TVP5150_STATUS_REG_2),
 218                         tvp5150_read(sd, TVP5150_STATUS_REG_3),
 219                         tvp5150_read(sd, TVP5150_STATUS_REG_4),
 220                         tvp5150_read(sd, TVP5150_STATUS_REG_5));
 221
 222         dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
 223                         TVP5150_TELETEXT_FIL1_END, 8);
 224         dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
 225                         TVP5150_TELETEXT_FIL2_END, 8);
 226
 227         printk("tvp5150: Teletext filter enable = 0x%02x\n",
 228                         tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
 229         printk("tvp5150: Interrupt status register A = 0x%02x\n",
 230                         tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
 231         printk("tvp5150: Interrupt enable register A = 0x%02x\n",
 232                         tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
 233         printk("tvp5150: Interrupt configuration = 0x%02x\n",
 234                         tvp5150_read(sd, TVP5150_INT_CONF));
 235         printk("tvp5150: VDP status register = 0x%02x\n",
 236                         tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
 237         printk("tvp5150: FIFO word count = 0x%02x\n",
 238                         tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
 239         printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
 240                         tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
 241         printk("tvp5150: FIFO reset = 0x%02x\n",
 242                         tvp5150_read(sd, TVP5150_FIFO_RESET));
 243         printk("tvp5150: Line number interrupt = 0x%02x\n",
 244                         tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
 245         printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
 246                         tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
 247                         tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
 248         printk("tvp5150: FIFO output control = 0x%02x\n",
 249                         tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
 250         printk("tvp5150: Full field enable = 0x%02x\n",
 251                         tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
 252         printk("tvp5150: Full field mode register = 0x%02x\n",
 253                         tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
 254
 255         dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
 256                         TVP5150_CC_DATA_END, 8);
 257
 258         dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
 259                         TVP5150_WSS_DATA_END, 8);
 260
 261         dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
 262                         TVP5150_VPS_DATA_END, 8);
 263
 264         dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
 265                         TVP5150_VITC_DATA_END, 10);
 266
 267         dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
 268                         TVP5150_LINE_MODE_END, 8);
 269         return 0;
 270 }
 271
 272 /****************************************************************************
 273                         Basic functions
 274  ****************************************************************************/
 275
 276 static inline void tvp5150_selmux(struct v4l2_subdev *sd)
 277 {
 278         int opmode=0;
 279         struct tvp5150 *decoder = to_tvp5150(sd);
 280         int input = 0;
 281         unsigned char val;
 282
 283         if ((decoder->route.output & TVP5150_BLACK_SCREEN) || !decoder->enable)
 284                 input = 8;
 285
 286         switch (decoder->route.input) {
 287         case TVP5150_COMPOSITE1:
 288                 input |= 2;
 289                 /* fall through */
 290         case TVP5150_COMPOSITE0:
 291                 opmode=0x30;            /* TV Mode */
 292                 break;
 293         case TVP5150_SVIDEO:
 294         default:
 295                 input |= 1;
 296                 opmode=0;               /* Auto Mode */
 297                 break;
 298         }
 299
 300         v4l2_dbg(1, debug, sd, "Selecting video route: route input=%i, output=%i "
 301                         "=> tvp5150 input=%i, opmode=%i\n",
 302                         decoder->route.input,decoder->route.output,
 303                         input, opmode );
 304
 305         tvp5150_write(sd, TVP5150_OP_MODE_CTL, opmode);
 306         tvp5150_write(sd, TVP5150_VD_IN_SRC_SEL_1, input);
 307
 308         /* Svideo should enable YCrCb output and disable GPCL output
 309          * For Composite and TV, it should be the reverse
 310          */
 311         val = tvp5150_read(sd, TVP5150_MISC_CTL);
 312         if (decoder->route.input == TVP5150_SVIDEO)
 313                 val = (val & ~0x40) | 0x10;
 314         else
 315                 val = (val & ~0x10) | 0x40;
 316         tvp5150_write(sd, TVP5150_MISC_CTL, val);
 317 };
 318
 319 struct i2c_reg_value {
 320         unsigned char reg;
 321         unsigned char value;
 322 };
 323
 324 /* Default values as sugested at TVP5150AM1 datasheet */
 325 static const struct i2c_reg_value tvp5150_init_default[] = {
 326         { /* 0x00 */
 327                 TVP5150_VD_IN_SRC_SEL_1,0x00
 328         },
 329         { /* 0x01 */
 330                 TVP5150_ANAL_CHL_CTL,0x15
 331         },
 332         { /* 0x02 */
 333                 TVP5150_OP_MODE_CTL,0x00
 334         },
 335         { /* 0x03 */
 336                 TVP5150_MISC_CTL,0x01
 337         },
 338         { /* 0x06 */
 339                 TVP5150_COLOR_KIL_THSH_CTL,0x10
 340         },
 341         { /* 0x07 */
 342                 TVP5150_LUMA_PROC_CTL_1,0x60
 343         },
 344         { /* 0x08 */
 345                 TVP5150_LUMA_PROC_CTL_2,0x00
 346         },
 347         { /* 0x09 */
 348                 TVP5150_BRIGHT_CTL,0x80
 349         },
 350         { /* 0x0a */
 351                 TVP5150_SATURATION_CTL,0x80
 352         },
 353         { /* 0x0b */
 354                 TVP5150_HUE_CTL,0x00
 355         },
 356         { /* 0x0c */
 357                 TVP5150_CONTRAST_CTL,0x80
 358         },
 359         { /* 0x0d */
 360                 TVP5150_DATA_RATE_SEL,0x47
 361         },
 362         { /* 0x0e */
 363                 TVP5150_LUMA_PROC_CTL_3,0x00
 364         },
 365         { /* 0x0f */
 366                 TVP5150_CONF_SHARED_PIN,0x08
 367         },
 368         { /* 0x11 */
 369                 TVP5150_ACT_VD_CROP_ST_MSB,0x00
 370         },
 371         { /* 0x12 */
 372                 TVP5150_ACT_VD_CROP_ST_LSB,0x00
 373         },
 374         { /* 0x13 */
 375                 TVP5150_ACT_VD_CROP_STP_MSB,0x00
 376         },
 377         { /* 0x14 */
 378                 TVP5150_ACT_VD_CROP_STP_LSB,0x00
 379         },
 380         { /* 0x15 */
 381                 TVP5150_GENLOCK,0x01
 382         },
 383         { /* 0x16 */
 384                 TVP5150_HORIZ_SYNC_START,0x80
 385         },
 386         { /* 0x18 */
 387                 TVP5150_VERT_BLANKING_START,0x00
 388         },
 389         { /* 0x19 */
 390                 TVP5150_VERT_BLANKING_STOP,0x00
 391         },
 392         { /* 0x1a */
 393                 TVP5150_CHROMA_PROC_CTL_1,0x0c
 394         },
 395         { /* 0x1b */
 396                 TVP5150_CHROMA_PROC_CTL_2,0x14
 397         },
 398         { /* 0x1c */
 399                 TVP5150_INT_RESET_REG_B,0x00
 400         },
 401         { /* 0x1d */
 402                 TVP5150_INT_ENABLE_REG_B,0x00
 403         },
 404         { /* 0x1e */
 405                 TVP5150_INTT_CONFIG_REG_B,0x00
 406         },
 407         { /* 0x28 */
 408                 TVP5150_VIDEO_STD,0x00
 409         },
 410         { /* 0x2e */
 411                 TVP5150_MACROVISION_ON_CTR,0x0f
 412         },
 413         { /* 0x2f */
 414                 TVP5150_MACROVISION_OFF_CTR,0x01
 415         },
 416         { /* 0xbb */
 417                 TVP5150_TELETEXT_FIL_ENA,0x00
 418         },
 419         { /* 0xc0 */
 420                 TVP5150_INT_STATUS_REG_A,0x00
 421         },
 422         { /* 0xc1 */
 423                 TVP5150_INT_ENABLE_REG_A,0x00
 424         },
 425         { /* 0xc2 */
 426                 TVP5150_INT_CONF,0x04
 427         },
 428         { /* 0xc8 */
 429                 TVP5150_FIFO_INT_THRESHOLD,0x80
 430         },
 431         { /* 0xc9 */
 432                 TVP5150_FIFO_RESET,0x00
 433         },
 434         { /* 0xca */
 435                 TVP5150_LINE_NUMBER_INT,0x00
 436         },
 437         { /* 0xcb */
 438                 TVP5150_PIX_ALIGN_REG_LOW,0x4e
 439         },
 440         { /* 0xcc */
 441                 TVP5150_PIX_ALIGN_REG_HIGH,0x00
 442         },
 443         { /* 0xcd */
 444                 TVP5150_FIFO_OUT_CTRL,0x01
 445         },
 446         { /* 0xcf */
 447                 TVP5150_FULL_FIELD_ENA,0x00
 448         },
 449         { /* 0xd0 */
 450                 TVP5150_LINE_MODE_INI,0x00
 451         },
 452         { /* 0xfc */
 453                 TVP5150_FULL_FIELD_MODE_REG,0x7f
 454         },
 455         { /* end of data */
 456                 0xff,0xff
 457         }
 458 };
 459
 460 /* Default values as sugested at TVP5150AM1 datasheet */
 461 static const struct i2c_reg_value tvp5150_init_enable[] = {
 462         {
 463                 TVP5150_CONF_SHARED_PIN, 2
 464         },{     /* Automatic offset and AGC enabled */
 465                 TVP5150_ANAL_CHL_CTL, 0x15
 466         },{     /* Activate YCrCb output 0x9 or 0xd ? */
 467                 TVP5150_MISC_CTL, 0x6f
 468         },{     /* Activates video std autodetection for all standards */
 469                 TVP5150_AUTOSW_MSK, 0x0
 470         },{     /* Default format: 0x47. For 4:2:2: 0x40 */
 471                 TVP5150_DATA_RATE_SEL, 0x47
 472         },{
 473                 TVP5150_CHROMA_PROC_CTL_1, 0x0c
 474         },{
 475                 TVP5150_CHROMA_PROC_CTL_2, 0x54
 476         },{     /* Non documented, but initialized on WinTV USB2 */
 477                 0x27, 0x20
 478         },{
 479                 0xff,0xff
 480         }
 481 };
 482
 483 struct tvp5150_vbi_type {
 484         unsigned int vbi_type;
 485         unsigned int ini_line;
 486         unsigned int end_line;
 487         unsigned int by_field :1;
 488 };
 489
 490 struct i2c_vbi_ram_value {
 491         u16 reg;
 492         struct tvp5150_vbi_type type;
 493         unsigned char values[16];
 494 };
 495
 496 /* This struct have the values for each supported VBI Standard
 497  * by
 498  tvp5150_vbi_types should follow the same order as vbi_ram_default
 499  * value 0 means rom position 0x10, value 1 means rom position 0x30
 500  * and so on. There are 16 possible locations from 0 to 15.
 501  */
 502
 503 static struct i2c_vbi_ram_value vbi_ram_default[] =
 504 {
 505         /* FIXME: Current api doesn't handle all VBI types, those not
 506            yet supported are placed under #if 0 */
 507 #if 0
 508         {0x010, /* Teletext, SECAM, WST System A */
 509                 {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
 510                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
 511                   0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
 512         },
 513 #endif
 514         {0x030, /* Teletext, PAL, WST System B */
 515                 {V4L2_SLICED_TELETEXT_B,6,22,1},
 516                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
 517                   0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
 518         },
 519 #if 0
 520         {0x050, /* Teletext, PAL, WST System C */
 521                 {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
 522                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 523                   0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 524         },
 525         {0x070, /* Teletext, NTSC, WST System B */
 526                 {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
 527                 { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
 528                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 529         },
 530         {0x090, /* Tetetext, NTSC NABTS System C */
 531                 {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
 532                 { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
 533                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
 534         },
 535         {0x0b0, /* Teletext, NTSC-J, NABTS System D */
 536                 {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
 537                 { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
 538                   0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
 539         },
 540         {0x0d0, /* Closed Caption, PAL/SECAM */
 541                 {V4L2_SLICED_CAPTION_625,22,22,1},
 542                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 543                   0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 544         },
 545 #endif
 546         {0x0f0, /* Closed Caption, NTSC */
 547                 {V4L2_SLICED_CAPTION_525,21,21,1},
 548                 { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
 549                   0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
 550         },
 551         {0x110, /* Wide Screen Signal, PAL/SECAM */
 552                 {V4L2_SLICED_WSS_625,23,23,1},
 553                 { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
 554                   0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
 555         },
 556 #if 0
 557         {0x130, /* Wide Screen Signal, NTSC C */
 558                 {V4L2_SLICED_WSS_525,20,20,1},
 559                 { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
 560                   0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
 561         },
 562         {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
 563                 {V4l2_SLICED_VITC_625,6,22,0},
 564                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 565                   0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 566         },
 567         {0x170, /* Vertical Interval Timecode (VITC), NTSC */
 568                 {V4l2_SLICED_VITC_525,10,20,0},
 569                 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
 570                   0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
 571         },
 572 #endif
 573         {0x190, /* Video Program System (VPS), PAL */
 574                 {V4L2_SLICED_VPS,16,16,0},
 575                 { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
 576                   0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
 577         },
 578         /* 0x1d0 User programmable */
 579
 580         /* End of struct */
 581         { (u16)-1 }
 582 };
 583
 584 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
 585                                 const struct i2c_reg_value *regs)
 586 {
 587         while (regs->reg != 0xff) {
 588                 tvp5150_write(sd, regs->reg, regs->value);
 589                 regs++;
 590         }
 591         return 0;
 592 }
 593
 594 static int tvp5150_vdp_init(struct v4l2_subdev *sd,
 595                                 const struct i2c_vbi_ram_value *regs)
 596 {
 597         unsigned int i;
 598
 599         /* Disable Full Field */
 600         tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 601
 602         /* Before programming, Line mode should be at 0xff */
 603         for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 604                 tvp5150_write(sd, i, 0xff);
 605
 606         /* Load Ram Table */
 607         while (regs->reg != (u16)-1) {
 608                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
 609                 tvp5150_write(sd, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
 610
 611                 for (i = 0; i < 16; i++)
 612                         tvp5150_write(sd, TVP5150_VDP_CONF_RAM_DATA, regs->values[i]);
 613
 614                 regs++;
 615         }
 616         return 0;
 617 }
 618
 619 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
 620 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
 621                                 struct v4l2_sliced_vbi_cap *cap)
 622 {
 623         const struct i2c_vbi_ram_value *regs = vbi_ram_default;
 624         int line;
 625
 626         v4l2_dbg(1, debug, sd, "g_sliced_vbi_cap\n");
 627         memset(cap, 0, sizeof *cap);
 628
 629         while (regs->reg != (u16)-1 ) {
 630                 for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
 631                         cap->service_lines[0][line] |= regs->type.vbi_type;
 632                 }
 633                 cap->service_set |= regs->type.vbi_type;
 634
 635                 regs++;
 636         }
 637         return 0;
 638 }
 639
 640 /* Set vbi processing
 641  * type - one of tvp5150_vbi_types
 642  * line - line to gather data
 643  * fields: bit 0 field1, bit 1, field2
 644  * flags (default=0xf0) is a bitmask, were set means:
 645  *      bit 7: enable filtering null bytes on CC
 646  *      bit 6: send data also to FIFO
 647  *      bit 5: don't allow data with errors on FIFO
 648  *      bit 4: enable ECC when possible
 649  * pix_align = pix alignment:
 650  *      LSB = field1
 651  *      MSB = field2
 652  */
 653 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
 654                         const struct i2c_vbi_ram_value *regs,
 655                         unsigned int type,u8 flags, int line,
 656                         const int fields)
 657 {
 658         struct tvp5150 *decoder = to_tvp5150(sd);
 659         v4l2_std_id std = decoder->norm;
 660         u8 reg;
 661         int pos=0;
 662
 663         if (std == V4L2_STD_ALL) {
 664                 v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
 665                 return 0;
 666         } else if (std & V4L2_STD_625_50) {
 667                 /* Don't follow NTSC Line number convension */
 668                 line += 3;
 669         }
 670
 671         if (line<6||line>27)
 672                 return 0;
 673
 674         while (regs->reg != (u16)-1 ) {
 675                 if ((type & regs->type.vbi_type) &&
 676                     (line>=regs->type.ini_line) &&
 677                     (line<=regs->type.end_line)) {
 678                         type=regs->type.vbi_type;
 679                         break;
 680                 }
 681
 682                 regs++;
 683                 pos++;
 684         }
 685         if (regs->reg == (u16)-1)
 686                 return 0;
 687
 688         type=pos | (flags & 0xf0);
 689         reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;
 690
 691         if (fields&1) {
 692                 tvp5150_write(sd, reg, type);
 693         }
 694
 695         if (fields&2) {
 696                 tvp5150_write(sd, reg+1, type);
 697         }
 698
 699         return type;
 700 }
 701
 702 static int tvp5150_get_vbi(struct v4l2_subdev *sd,
 703                         const struct i2c_vbi_ram_value *regs, int line)
 704 {
 705         struct tvp5150 *decoder = to_tvp5150(sd);
 706         v4l2_std_id std = decoder->norm;
 707         u8 reg;
 708         int pos, type = 0;
 709
 710         if (std == V4L2_STD_ALL) {
 711                 v4l2_err(sd, "VBI can't be configured without knowing number of lines\n");
 712                 return 0;
 713         } else if (std & V4L2_STD_625_50) {
 714                 /* Don't follow NTSC Line number convension */
 715                 line += 3;
 716         }
 717
 718         if (line < 6 || line > 27)
 719                 return 0;
 720
 721         reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
 722
 723         pos = tvp5150_read(sd, reg) & 0x0f;
 724         if (pos < 0x0f)
 725                 type = regs[pos].type.vbi_type;
 726
 727         pos = tvp5150_read(sd, reg + 1) & 0x0f;
 728         if (pos < 0x0f)
 729                 type |= regs[pos].type.vbi_type;
 730
 731         return type;
 732 }
 733
 734 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
 735 {
 736         struct tvp5150 *decoder = to_tvp5150(sd);
 737         int fmt = 0;
 738
 739         decoder->norm = std;
 740
 741         /* First tests should be against specific std */
 742
 743         if (std == V4L2_STD_ALL) {
 744                 fmt = 0;        /* Autodetect mode */
 745         } else if (std & V4L2_STD_NTSC_443) {
 746                 fmt = 0xa;
 747         } else if (std & V4L2_STD_PAL_M) {
 748                 fmt = 0x6;
 749         } else if (std & (V4L2_STD_PAL_N | V4L2_STD_PAL_Nc)) {
 750                 fmt = 0x8;
 751         } else {
 752                 /* Then, test against generic ones */
 753                 if (std & V4L2_STD_NTSC)
 754                         fmt = 0x2;
 755                 else if (std & V4L2_STD_PAL)
 756                         fmt = 0x4;
 757                 else if (std & V4L2_STD_SECAM)
 758                         fmt = 0xc;
 759         }
 760
 761         v4l2_dbg(1, debug, sd, "Set video std register to %d.\n", fmt);
 762         tvp5150_write(sd, TVP5150_VIDEO_STD, fmt);
 763         return 0;
 764 }
 765
 766 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
 767 {
 768         struct tvp5150 *decoder = to_tvp5150(sd);
 769
 770         if (decoder->norm == std)
 771                 return 0;
 772
 773         return tvp5150_set_std(sd, std);
 774 }
 775
 776 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
 777 {
 778         struct tvp5150 *decoder = to_tvp5150(sd);
 779         u8 msb_id, lsb_id, msb_rom, lsb_rom;
 780
 781         msb_id = tvp5150_read(sd, TVP5150_MSB_DEV_ID);
 782         lsb_id = tvp5150_read(sd, TVP5150_LSB_DEV_ID);
 783         msb_rom = tvp5150_read(sd, TVP5150_ROM_MAJOR_VER);
 784         lsb_rom = tvp5150_read(sd, TVP5150_ROM_MINOR_VER);
 785
 786         if (msb_rom == 4 && lsb_rom == 0) { /* Is TVP5150AM1 */
 787                 v4l2_info(sd, "tvp%02x%02xam1 detected.\n", msb_id, lsb_id);
 788
 789                 /* ITU-T BT.656.4 timing */
 790                 tvp5150_write(sd, TVP5150_REV_SELECT, 0);
 791         } else {
 792                 if (msb_rom == 3 || lsb_rom == 0x21) { /* Is TVP5150A */
 793                         v4l2_info(sd, "tvp%02x%02xa detected.\n", msb_id, lsb_id);
 794                 } else {
 795                         v4l2_info(sd, "*** unknown tvp%02x%02x chip detected.\n",
 796                                         msb_id, lsb_id);
 797                         v4l2_info(sd, "*** Rom ver is %d.%d\n", msb_rom, lsb_rom);
 798                 }
 799         }
 800
 801         /* Initializes TVP5150 to its default values */
 802         tvp5150_write_inittab(sd, tvp5150_init_default);
 803
 804         /* Initializes VDP registers */
 805         tvp5150_vdp_init(sd, vbi_ram_default);
 806
 807         /* Selects decoder input */
 808         tvp5150_selmux(sd);
 809
 810         /* Initializes TVP5150 to stream enabled values */
 811         tvp5150_write_inittab(sd, tvp5150_init_enable);
 812
 813         /* Initialize image preferences */
 814         tvp5150_write(sd, TVP5150_BRIGHT_CTL, decoder->bright);
 815         tvp5150_write(sd, TVP5150_CONTRAST_CTL, decoder->contrast);
 816         tvp5150_write(sd, TVP5150_SATURATION_CTL, decoder->contrast);
 817         tvp5150_write(sd, TVP5150_HUE_CTL, decoder->hue);
 818
 819         tvp5150_set_std(sd, decoder->norm);
 820         return 0;
 821 };
 822
 823 static int tvp5150_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 824 {
 825         v4l2_dbg(1, debug, sd, "g_ctrl called\n");
 826
 827         switch (ctrl->id) {
 828         case V4L2_CID_BRIGHTNESS:
 829                 ctrl->value = tvp5150_read(sd, TVP5150_BRIGHT_CTL);
 830                 return 0;
 831         case V4L2_CID_CONTRAST:
 832                 ctrl->value = tvp5150_read(sd, TVP5150_CONTRAST_CTL);
 833                 return 0;
 834         case V4L2_CID_SATURATION:
 835                 ctrl->value = tvp5150_read(sd, TVP5150_SATURATION_CTL);
 836                 return 0;
 837         case V4L2_CID_HUE:
 838                 ctrl->value = tvp5150_read(sd, TVP5150_HUE_CTL);
 839                 return 0;
 840         }
 841         return -EINVAL;
 842 }
 843
 844 static int tvp5150_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 845 {
 846         u8 i, n;
 847         n = ARRAY_SIZE(tvp5150_qctrl);
 848
 849         for (i = 0; i < n; i++) {
 850                 if (ctrl->id != tvp5150_qctrl[i].id)
 851                         continue;
 852                 if (ctrl->value < tvp5150_qctrl[i].minimum ||
 853                     ctrl->value > tvp5150_qctrl[i].maximum)
 854                         return -ERANGE;
 855                 v4l2_dbg(1, debug, sd, "s_ctrl: id=%d, value=%d\n",
 856                                         ctrl->id, ctrl->value);
 857                 break;
 858         }
 859
 860         switch (ctrl->id) {
 861         case V4L2_CID_BRIGHTNESS:
 862                 tvp5150_write(sd, TVP5150_BRIGHT_CTL, ctrl->value);
 863                 return 0;
 864         case V4L2_CID_CONTRAST:
 865                 tvp5150_write(sd, TVP5150_CONTRAST_CTL, ctrl->value);
 866                 return 0;
 867         case V4L2_CID_SATURATION:
 868                 tvp5150_write(sd, TVP5150_SATURATION_CTL, ctrl->value);
 869                 return 0;
 870         case V4L2_CID_HUE:
 871                 tvp5150_write(sd, TVP5150_HUE_CTL, ctrl->value);
 872                 return 0;
 873         }
 874         return -EINVAL;
 875 }
 876
 877 /****************************************************************************
 878                         I2C Command
 879  ****************************************************************************/
 880
 881 static int tvp5150_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
 882 {
 883         struct tvp5150 *decoder = to_tvp5150(sd);
 884
 885         decoder->route = *route;
 886         tvp5150_selmux(sd);
 887         return 0;
 888 }
 889
 890 static int tvp5150_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 891 {
 892         struct v4l2_sliced_vbi_format *svbi;
 893         int i;
 894
 895         /* raw vbi */
 896         if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 897                 /* this is for capturing 36 raw vbi lines
 898                    if there's a way to cut off the beginning 2 vbi lines
 899                    with the tvp5150 then the vbi line count could be lowered
 900                    to 17 lines/field again, although I couldn't find a register
 901                    which could do that cropping */
 902                 if (fmt->fmt.vbi.sample_format == V4L2_PIX_FMT_GREY)
 903                         tvp5150_write(sd, TVP5150_LUMA_PROC_CTL_1, 0x70);
 904                 if (fmt->fmt.vbi.count[0] == 18 && fmt->fmt.vbi.count[1] == 18) {
 905                         tvp5150_write(sd, TVP5150_VERT_BLANKING_START, 0x00);
 906                         tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP, 0x01);
 907                 }
 908                 return 0;
 909         }
 910         if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
 911                 return -EINVAL;
 912         svbi = &fmt->fmt.sliced;
 913         if (svbi->service_set != 0) {
 914                 for (i = 0; i <= 23; i++) {
 915                         svbi->service_lines[1][i] = 0;
 916                         svbi->service_lines[0][i] =
 917                                 tvp5150_set_vbi(sd, vbi_ram_default,
 918                                        svbi->service_lines[0][i], 0xf0, i, 3);
 919                 }
 920                 /* Enables FIFO */
 921                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 1);
 922         } else {
 923                 /* Disables FIFO*/
 924                 tvp5150_write(sd, TVP5150_FIFO_OUT_CTRL, 0);
 925
 926                 /* Disable Full Field */
 927                 tvp5150_write(sd, TVP5150_FULL_FIELD_ENA, 0);
 928
 929                 /* Disable Line modes */
 930                 for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
 931                         tvp5150_write(sd, i, 0xff);
 932         }
 933         return 0;
 934 }
 935
 936 static int tvp5150_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 937 {
 938         struct v4l2_sliced_vbi_format *svbi;
 939         int i, mask = 0;
 940
 941         if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
 942                 return -EINVAL;
 943         svbi = &fmt->fmt.sliced;
 944         memset(svbi, 0, sizeof(*svbi));
 945
 946         for (i = 0; i <= 23; i++) {
 947                 svbi->service_lines[0][i] =
 948                         tvp5150_get_vbi(sd, vbi_ram_default, i);
 949                 mask |= svbi->service_lines[0][i];
 950         }
 951         svbi->service_set = mask;
 952         return 0;
 953 }
 954
 955
 956 static int tvp5150_g_chip_ident(struct v4l2_subdev *sd,
 957                                 struct v4l2_dbg_chip_ident *chip)
 958 {
 959         int rev;
 960         struct i2c_client *client = v4l2_get_subdevdata(sd);
 961
 962         rev = tvp5150_read(sd, TVP5150_ROM_MAJOR_VER) << 8 |
 963               tvp5150_read(sd, TVP5150_ROM_MINOR_VER);
 964
 965         return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP5150,
 966                                           rev);
 967 }
 968
 969
 970 #ifdef CONFIG_VIDEO_ADV_DEBUG
 971 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 972 {
 973         struct i2c_client *client = v4l2_get_subdevdata(sd);
 974
 975         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 976                 return -EINVAL;
 977         if (!capable(CAP_SYS_ADMIN))
 978                 return -EPERM;
 979         reg->val = tvp5150_read(sd, reg->reg & 0xff);
 980         reg->size = 1;
 981         return 0;
 982 }
 983
 984 static int tvp5150_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
 985 {
 986         struct i2c_client *client = v4l2_get_subdevdata(sd);
 987
 988         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 989                 return -EINVAL;
 990         if (!capable(CAP_SYS_ADMIN))
 991                 return -EPERM;
 992         tvp5150_write(sd, reg->reg & 0xff, reg->val & 0xff);
 993         return 0;
 994 }
 995 #endif
 996
 997 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
 998 {
 999         int status = tvp5150_read(sd, 0x88);
1000
1001         vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1002         return 0;
1003 }
1004
1005 static int tvp5150_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
1006 {
1007         int i;
1008
1009         v4l2_dbg(1, debug, sd, "queryctrl called\n");
1010
1011         for (i = 0; i < ARRAY_SIZE(tvp5150_qctrl); i++)
1012                 if (qc->id && qc->id == tvp5150_qctrl[i].id) {
1013                         memcpy(qc, &(tvp5150_qctrl[i]),
1014                                sizeof(*qc));
1015                         return 0;
1016                 }
1017
1018         return -EINVAL;
1019 }
1020
1021 /* ----------------------------------------------------------------------- */
1022
1023 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1024         .log_status = tvp5150_log_status,
1025         .g_ctrl = tvp5150_g_ctrl,
1026         .s_ctrl = tvp5150_s_ctrl,
1027         .queryctrl = tvp5150_queryctrl,
1028         .s_std = tvp5150_s_std,
1029         .reset = tvp5150_reset,
1030         .g_chip_ident = tvp5150_g_chip_ident,
1031 #ifdef CONFIG_VIDEO_ADV_DEBUG
1032         .g_register = tvp5150_g_register,
1033         .s_register = tvp5150_s_register,
1034 #endif
1035 };
1036
1037 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1038         .g_tuner = tvp5150_g_tuner,
1039 };
1040
1041 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1042         .s_routing = tvp5150_s_routing,
1043         .g_fmt = tvp5150_g_fmt,
1044         .s_fmt = tvp5150_s_fmt,
1045         .g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1046 };
1047
1048 static const struct v4l2_subdev_ops tvp5150_ops = {
1049         .core = &tvp5150_core_ops,
1050         .tuner = &tvp5150_tuner_ops,
1051         .video = &tvp5150_video_ops,
1052 };
1053
1054
1055 /****************************************************************************
1056                         I2C Client & Driver
1057  ****************************************************************************/
1058
1059 static int tvp5150_probe(struct i2c_client *c,
1060                          const struct i2c_device_id *id)
1061 {
1062         struct tvp5150 *core;
1063         struct v4l2_subdev *sd;
1064
1065         /* Check if the adapter supports the needed features */
1066         if (!i2c_check_functionality(c->adapter,
1067              I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1068                 return -EIO;
1069
1070         core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
1071         if (!core) {
1072                 return -ENOMEM;
1073         }
1074         sd = &core->sd;
1075         v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1076         v4l_info(c, "chip found @ 0x%02x (%s)\n",
1077                  c->addr << 1, c->adapter->name);
1078
1079         core->norm = V4L2_STD_ALL;      /* Default is autodetect */
1080         core->route.input = TVP5150_COMPOSITE1;
1081         core->enable = 1;
1082         core->bright = 128;
1083         core->contrast = 128;
1084         core->hue = 0;
1085         core->sat = 128;
1086
1087         if (debug > 1)
1088                 tvp5150_log_status(sd);
1089         return 0;
1090 }
1091
1092 static int tvp5150_remove(struct i2c_client *c)
1093 {
1094         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1095
1096         v4l2_dbg(1, debug, sd,
1097                 "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1098                 c->addr << 1);
1099
1100         v4l2_device_unregister_subdev(sd);
1101         kfree(to_tvp5150(sd));
1102         return 0;
1103 }
1104
1105 /* ----------------------------------------------------------------------- */
1106
1107 static const struct i2c_device_id tvp5150_id[] = {
1108         { "tvp5150", 0 },
1109         { }
1110 };
1111 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1112
1113 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
1114         .name = "tvp5150",
1115         .probe = tvp5150_probe,
1116         .remove = tvp5150_remove,
1117         .id_table = tvp5150_id,
1118 };