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tvp5150.c

/*
 * tvp5150 - Texas Instruments TVP5150A/AM1 video decoder driver
 *
 * Copyright (c) 2005,2006 Mauro Carvalho Chehab (mchehab@infradead.org)
 * This code is placed under the terms of the GNU General Public License v2
 */

#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/delay.h>
#include <linux/video_decoder.h>
#include <media/v4l2-common.h>
#include <media/tvp5150.h>

#include "tvp5150_reg.h"

MODULE_DESCRIPTION("Texas Instruments TVP5150A video decoder driver");
MODULE_AUTHOR("Mauro Carvalho Chehab");
MODULE_LICENSE("GPL");

/* standard i2c insmod options */
static unsigned short normal_i2c[] = {
      0xb8 >> 1,
      0xba >> 1,
      I2C_CLIENT_END
};

I2C_CLIENT_INSMOD;

static int debug = 0;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");

#define tvp5150_err(fmt, arg...) do { \
      printk(KERN_ERR "%s %d-%04x: " fmt, c->driver->driver.name, \
             i2c_adapter_id(c->adapter), c->addr , ## arg); } while (0)
#define tvp5150_info(fmt, arg...) do { \
      printk(KERN_INFO "%s %d-%04x: " fmt, c->driver->driver.name, \
             i2c_adapter_id(c->adapter), c->addr , ## arg); } while (0)
#define tvp5150_dbg(num, fmt, arg...) \
      do { \
            if (debug >= num) \
                  printk(KERN_DEBUG "%s debug %d-%04x: " fmt,\
                        c->driver->driver.name, \
                        i2c_adapter_id(c->adapter), \
                        c->addr , ## arg); } while (0)

/* supported controls */
static struct v4l2_queryctrl tvp5150_qctrl[] = {
      {
            .id = V4L2_CID_BRIGHTNESS,
            .type = V4L2_CTRL_TYPE_INTEGER,
            .name = "Brightness",
            .minimum = 0,
            .maximum = 255,
            .step = 1,
            .default_value = 128,
            .flags = 0,
      }, {
            .id = V4L2_CID_CONTRAST,
            .type = V4L2_CTRL_TYPE_INTEGER,
            .name = "Contrast",
            .minimum = 0,
            .maximum = 255,
            .step = 0x1,
            .default_value = 128,
            .flags = 0,
      }, {
             .id = V4L2_CID_SATURATION,
             .type = V4L2_CTRL_TYPE_INTEGER,
             .name = "Saturation",
             .minimum = 0,
             .maximum = 255,
             .step = 0x1,
             .default_value = 128,
             .flags = 0,
      }, {
            .id = V4L2_CID_HUE,
            .type = V4L2_CTRL_TYPE_INTEGER,
            .name = "Hue",
            .minimum = -128,
            .maximum = 127,
            .step = 0x1,
            .default_value = 0,
            .flags = 0,
      }
};

struct tvp5150 {
      struct i2c_client *client;

      v4l2_std_id norm; /* Current set standard */
      struct v4l2_routing route;
      int enable;
      int bright;
      int contrast;
      int hue;
      int sat;
};

static int tvp5150_read(struct i2c_client *c, unsigned char addr)
{
      unsigned char buffer[1];
      int rc;

      buffer[0] = addr;
      if (1 != (rc = i2c_master_send(c, buffer, 1)))
            tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 1)\n", rc);

      msleep(10);

      if (1 != (rc = i2c_master_recv(c, buffer, 1)))
            tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 1)\n", rc);

      tvp5150_dbg(2, "tvp5150: read 0x%02x = 0x%02x\n", addr, buffer[0]);

      return (buffer[0]);
}

static inline void tvp5150_write(struct i2c_client *c, unsigned char addr,
                         unsigned char value)
{
      unsigned char buffer[2];
      int rc;

      buffer[0] = addr;
      buffer[1] = value;
      tvp5150_dbg(2, "tvp5150: writing 0x%02x 0x%02x\n", buffer[0], buffer[1]);
      if (2 != (rc = i2c_master_send(c, buffer, 2)))
            tvp5150_dbg(0, "i2c i/o error: rc == %d (should be 2)\n", rc);
}

static void dump_reg_range(struct i2c_client *c, char *s, u8 init, const u8 end,int max_line)
{
      int i=0;

      while (init!=(u8)(end+1)) {
            if ((i%max_line) == 0) {
                  if (i>0)
                        printk("\n");
                  printk("tvp5150: %s reg 0x%02x = ",s,init);
            }
            printk("%02x ",tvp5150_read(c, init));

            init++;
            i++;
      }
      printk("\n");
}

static void dump_reg(struct i2c_client *c)
{
      printk("tvp5150: Video input source selection #1 = 0x%02x\n",
                              tvp5150_read(c, TVP5150_VD_IN_SRC_SEL_1));
      printk("tvp5150: Analog channel controls = 0x%02x\n",
                              tvp5150_read(c, TVP5150_ANAL_CHL_CTL));
      printk("tvp5150: Operation mode controls = 0x%02x\n",
                              tvp5150_read(c, TVP5150_OP_MODE_CTL));
      printk("tvp5150: Miscellaneous controls = 0x%02x\n",
                              tvp5150_read(c, TVP5150_MISC_CTL));
      printk("tvp5150: Autoswitch mask= 0x%02x\n",
                              tvp5150_read(c, TVP5150_AUTOSW_MSK));
      printk("tvp5150: Color killer threshold control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_COLOR_KIL_THSH_CTL));
      printk("tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
                              tvp5150_read(c, TVP5150_LUMA_PROC_CTL_1),
                              tvp5150_read(c, TVP5150_LUMA_PROC_CTL_2),
                              tvp5150_read(c, TVP5150_LUMA_PROC_CTL_3));
      printk("tvp5150: Brightness control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_BRIGHT_CTL));
      printk("tvp5150: Color saturation control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_SATURATION_CTL));
      printk("tvp5150: Hue control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_HUE_CTL));
      printk("tvp5150: Contrast control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_CONTRAST_CTL));
      printk("tvp5150: Outputs and data rates select = 0x%02x\n",
                              tvp5150_read(c, TVP5150_DATA_RATE_SEL));
      printk("tvp5150: Configuration shared pins = 0x%02x\n",
                              tvp5150_read(c, TVP5150_CONF_SHARED_PIN));
      printk("tvp5150: Active video cropping start = 0x%02x%02x\n",
                              tvp5150_read(c, TVP5150_ACT_VD_CROP_ST_MSB),
                              tvp5150_read(c, TVP5150_ACT_VD_CROP_ST_LSB));
      printk("tvp5150: Active video cropping stop  = 0x%02x%02x\n",
                              tvp5150_read(c, TVP5150_ACT_VD_CROP_STP_MSB),
                              tvp5150_read(c, TVP5150_ACT_VD_CROP_STP_LSB));
      printk("tvp5150: Genlock/RTC = 0x%02x\n",
                              tvp5150_read(c, TVP5150_GENLOCK));
      printk("tvp5150: Horizontal sync start = 0x%02x\n",
                              tvp5150_read(c, TVP5150_HORIZ_SYNC_START));
      printk("tvp5150: Vertical blanking start = 0x%02x\n",
                              tvp5150_read(c, TVP5150_VERT_BLANKING_START));
      printk("tvp5150: Vertical blanking stop = 0x%02x\n",
                              tvp5150_read(c, TVP5150_VERT_BLANKING_STOP));
      printk("tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
                              tvp5150_read(c, TVP5150_CHROMA_PROC_CTL_1),
                              tvp5150_read(c, TVP5150_CHROMA_PROC_CTL_2));
      printk("tvp5150: Interrupt reset register B = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_RESET_REG_B));
      printk("tvp5150: Interrupt enable register B = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_ENABLE_REG_B));
      printk("tvp5150: Interrupt configuration register B = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INTT_CONFIG_REG_B));
      printk("tvp5150: Video standard = 0x%02x\n",
                              tvp5150_read(c, TVP5150_VIDEO_STD));
      printk("tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
                              tvp5150_read(c, TVP5150_CB_GAIN_FACT),
                              tvp5150_read(c, TVP5150_CR_GAIN_FACTOR));
      printk("tvp5150: Macrovision on counter = 0x%02x\n",
                              tvp5150_read(c, TVP5150_MACROVISION_ON_CTR));
      printk("tvp5150: Macrovision off counter = 0x%02x\n",
                              tvp5150_read(c, TVP5150_MACROVISION_OFF_CTR));
      printk("tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
                              (tvp5150_read(c, TVP5150_REV_SELECT)&1)?3:4);
      printk("tvp5150: Device ID = %02x%02x\n",
                              tvp5150_read(c, TVP5150_MSB_DEV_ID),
                              tvp5150_read(c, TVP5150_LSB_DEV_ID));
      printk("tvp5150: ROM version = (hex) %02x.%02x\n",
                              tvp5150_read(c, TVP5150_ROM_MAJOR_VER),
                              tvp5150_read(c, TVP5150_ROM_MINOR_VER));
      printk("tvp5150: Vertical line count = 0x%02x%02x\n",
                              tvp5150_read(c, TVP5150_VERT_LN_COUNT_MSB),
                              tvp5150_read(c, TVP5150_VERT_LN_COUNT_LSB));
      printk("tvp5150: Interrupt status register B = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_STATUS_REG_B));
      printk("tvp5150: Interrupt active register B = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_ACTIVE_REG_B));
      printk("tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
                              tvp5150_read(c, TVP5150_STATUS_REG_1),
                              tvp5150_read(c, TVP5150_STATUS_REG_2),
                              tvp5150_read(c, TVP5150_STATUS_REG_3),
                              tvp5150_read(c, TVP5150_STATUS_REG_4),
                              tvp5150_read(c, TVP5150_STATUS_REG_5));

      dump_reg_range(c,"Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
                                    TVP5150_TELETEXT_FIL1_END,8);
      dump_reg_range(c,"Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
                                    TVP5150_TELETEXT_FIL2_END,8);

      printk("tvp5150: Teletext filter enable = 0x%02x\n",
                              tvp5150_read(c, TVP5150_TELETEXT_FIL_ENA));
      printk("tvp5150: Interrupt status register A = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_STATUS_REG_A));
      printk("tvp5150: Interrupt enable register A = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_ENABLE_REG_A));
      printk("tvp5150: Interrupt configuration = 0x%02x\n",
                              tvp5150_read(c, TVP5150_INT_CONF));
      printk("tvp5150: VDP status register = 0x%02x\n",
                              tvp5150_read(c, TVP5150_VDP_STATUS_REG));
      printk("tvp5150: FIFO word count = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FIFO_WORD_COUNT));
      printk("tvp5150: FIFO interrupt threshold = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FIFO_INT_THRESHOLD));
      printk("tvp5150: FIFO reset = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FIFO_RESET));
      printk("tvp5150: Line number interrupt = 0x%02x\n",
                              tvp5150_read(c, TVP5150_LINE_NUMBER_INT));
      printk("tvp5150: Pixel alignment register = 0x%02x%02x\n",
                              tvp5150_read(c, TVP5150_PIX_ALIGN_REG_HIGH),
                              tvp5150_read(c, TVP5150_PIX_ALIGN_REG_LOW));
      printk("tvp5150: FIFO output control = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FIFO_OUT_CTRL));
      printk("tvp5150: Full field enable = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FULL_FIELD_ENA));
      printk("tvp5150: Full field mode register = 0x%02x\n",
                              tvp5150_read(c, TVP5150_FULL_FIELD_MODE_REG));

      dump_reg_range(c,"CC   data",   TVP5150_CC_DATA_INI,
                              TVP5150_CC_DATA_END,8);

      dump_reg_range(c,"WSS  data",   TVP5150_WSS_DATA_INI,
                              TVP5150_WSS_DATA_END,8);

      dump_reg_range(c,"VPS  data",   TVP5150_VPS_DATA_INI,
                              TVP5150_VPS_DATA_END,8);

      dump_reg_range(c,"VITC data",   TVP5150_VITC_DATA_INI,
                              TVP5150_VITC_DATA_END,10);

      dump_reg_range(c,"Line mode",   TVP5150_LINE_MODE_INI,
                              TVP5150_LINE_MODE_END,8);
}

/****************************************************************************
                  Basic functions
 ****************************************************************************/

static inline void tvp5150_selmux(struct i2c_client *c)
{
      int opmode=0;
      struct tvp5150 *decoder = i2c_get_clientdata(c);
      int input = 0;
      unsigned char val;

      if ((decoder->route.output & TVP5150_BLACK_SCREEN) || !decoder->enable)
            input = 8;

      switch (decoder->route.input) {
      case TVP5150_COMPOSITE1:
            input |= 2;
            /* fall through */
      case TVP5150_COMPOSITE0:
            opmode=0x30;            /* TV Mode */
            break;
      case TVP5150_SVIDEO:
      default:
            input |= 1;
            opmode=0;         /* Auto Mode */
            break;
      }

      tvp5150_dbg( 1, "Selecting video route: route input=%i, output=%i "
                  "=> tvp5150 input=%i, opmode=%i\n",
                  decoder->route.input,decoder->route.output,
                  input, opmode );

      tvp5150_write(c, TVP5150_OP_MODE_CTL, opmode);
      tvp5150_write(c, TVP5150_VD_IN_SRC_SEL_1, input);

      /* Svideo should enable YCrCb output and disable GPCL output
       * For Composite and TV, it should be the reverse
       */
      val = tvp5150_read(c, TVP5150_MISC_CTL);
      if (decoder->route.input == TVP5150_SVIDEO)
            val = (val & ~0x40) | 0x10;
      else
            val = (val & ~0x10) | 0x40;
      tvp5150_write(c, TVP5150_MISC_CTL, val);
};

struct i2c_reg_value {
      unsigned char reg;
      unsigned char value;
};

/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_default[] = {
      { /* 0x00 */
            TVP5150_VD_IN_SRC_SEL_1,0x00
      },
      { /* 0x01 */
            TVP5150_ANAL_CHL_CTL,0x15
      },
      { /* 0x02 */
            TVP5150_OP_MODE_CTL,0x00
      },
      { /* 0x03 */
            TVP5150_MISC_CTL,0x01
      },
      { /* 0x06 */
            TVP5150_COLOR_KIL_THSH_CTL,0x10
      },
      { /* 0x07 */
            TVP5150_LUMA_PROC_CTL_1,0x60
      },
      { /* 0x08 */
            TVP5150_LUMA_PROC_CTL_2,0x00
      },
      { /* 0x09 */
            TVP5150_BRIGHT_CTL,0x80
      },
      { /* 0x0a */
            TVP5150_SATURATION_CTL,0x80
      },
      { /* 0x0b */
            TVP5150_HUE_CTL,0x00
      },
      { /* 0x0c */
            TVP5150_CONTRAST_CTL,0x80
      },
      { /* 0x0d */
            TVP5150_DATA_RATE_SEL,0x47
      },
      { /* 0x0e */
            TVP5150_LUMA_PROC_CTL_3,0x00
      },
      { /* 0x0f */
            TVP5150_CONF_SHARED_PIN,0x08
      },
      { /* 0x11 */
            TVP5150_ACT_VD_CROP_ST_MSB,0x00
      },
      { /* 0x12 */
            TVP5150_ACT_VD_CROP_ST_LSB,0x00
      },
      { /* 0x13 */
            TVP5150_ACT_VD_CROP_STP_MSB,0x00
      },
      { /* 0x14 */
            TVP5150_ACT_VD_CROP_STP_LSB,0x00
      },
      { /* 0x15 */
            TVP5150_GENLOCK,0x01
      },
      { /* 0x16 */
            TVP5150_HORIZ_SYNC_START,0x80
      },
      { /* 0x18 */
            TVP5150_VERT_BLANKING_START,0x00
      },
      { /* 0x19 */
            TVP5150_VERT_BLANKING_STOP,0x00
      },
      { /* 0x1a */
            TVP5150_CHROMA_PROC_CTL_1,0x0c
      },
      { /* 0x1b */
            TVP5150_CHROMA_PROC_CTL_2,0x14
      },
      { /* 0x1c */
            TVP5150_INT_RESET_REG_B,0x00
      },
      { /* 0x1d */
            TVP5150_INT_ENABLE_REG_B,0x00
      },
      { /* 0x1e */
            TVP5150_INTT_CONFIG_REG_B,0x00
      },
      { /* 0x28 */
            TVP5150_VIDEO_STD,0x00
      },
      { /* 0x2e */
            TVP5150_MACROVISION_ON_CTR,0x0f
      },
      { /* 0x2f */
            TVP5150_MACROVISION_OFF_CTR,0x01
      },
      { /* 0xbb */
            TVP5150_TELETEXT_FIL_ENA,0x00
      },
      { /* 0xc0 */
            TVP5150_INT_STATUS_REG_A,0x00
      },
      { /* 0xc1 */
            TVP5150_INT_ENABLE_REG_A,0x00
      },
      { /* 0xc2 */
            TVP5150_INT_CONF,0x04
      },
      { /* 0xc8 */
            TVP5150_FIFO_INT_THRESHOLD,0x80
      },
      { /* 0xc9 */
            TVP5150_FIFO_RESET,0x00
      },
      { /* 0xca */
            TVP5150_LINE_NUMBER_INT,0x00
      },
      { /* 0xcb */
            TVP5150_PIX_ALIGN_REG_LOW,0x4e
      },
      { /* 0xcc */
            TVP5150_PIX_ALIGN_REG_HIGH,0x00
      },
      { /* 0xcd */
            TVP5150_FIFO_OUT_CTRL,0x01
      },
      { /* 0xcf */
            TVP5150_FULL_FIELD_ENA,0x00
      },
      { /* 0xd0 */
            TVP5150_LINE_MODE_INI,0x00
      },
      { /* 0xfc */
            TVP5150_FULL_FIELD_MODE_REG,0x7f
      },
      { /* end of data */
            0xff,0xff
      }
};

/* Default values as sugested at TVP5150AM1 datasheet */
static const struct i2c_reg_value tvp5150_init_enable[] = {
      {
            TVP5150_CONF_SHARED_PIN, 2
      },{   /* Automatic offset and AGC enabled */
            TVP5150_ANAL_CHL_CTL, 0x15
      },{   /* Activate YCrCb output 0x9 or 0xd ? */
            TVP5150_MISC_CTL, 0x6f
      },{   /* Activates video std autodetection for all standards */
            TVP5150_AUTOSW_MSK, 0x0
      },{   /* Default format: 0x47. For 4:2:2: 0x40 */
            TVP5150_DATA_RATE_SEL, 0x47
      },{
            TVP5150_CHROMA_PROC_CTL_1, 0x0c
      },{
            TVP5150_CHROMA_PROC_CTL_2, 0x54
      },{   /* Non documented, but initialized on WinTV USB2 */
            0x27, 0x20
      },{
            0xff,0xff
      }
};

struct tvp5150_vbi_type {
      unsigned int vbi_type;
      unsigned int ini_line;
      unsigned int end_line;
      unsigned int by_field :1;
};

struct i2c_vbi_ram_value {
      u16 reg;
      struct tvp5150_vbi_type type;
      unsigned char values[16];
};

/* This struct have the values for each supported VBI Standard
 * by
 tvp5150_vbi_types should follow the same order as vbi_ram_default
 * value 0 means rom position 0x10, value 1 means rom position 0x30
 * and so on. There are 16 possible locations from 0 to 15.
 */

static struct i2c_vbi_ram_value vbi_ram_default[] =
{
      /* FIXME: Current api doesn't handle all VBI types, those not
         yet supported are placed under #if 0 */
#if 0
      {0x010, /* Teletext, SECAM, WST System A */
            {V4L2_SLICED_TELETEXT_SECAM,6,23,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
              0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
      },
#endif
      {0x030, /* Teletext, PAL, WST System B */
            {V4L2_SLICED_TELETEXT_B,6,22,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
              0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
      },
#if 0
      {0x050, /* Teletext, PAL, WST System C */
            {V4L2_SLICED_TELETEXT_PAL_C,6,22,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
              0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
      },
      {0x070, /* Teletext, NTSC, WST System B */
            {V4L2_SLICED_TELETEXT_NTSC_B,10,21,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
              0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
      },
      {0x090, /* Tetetext, NTSC NABTS System C */
            {V4L2_SLICED_TELETEXT_NTSC_C,10,21,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
              0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
      },
      {0x0b0, /* Teletext, NTSC-J, NABTS System D */
            {V4L2_SLICED_TELETEXT_NTSC_D,10,21,1},
            { 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
              0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
      },
      {0x0d0, /* Closed Caption, PAL/SECAM */
            {V4L2_SLICED_CAPTION_625,22,22,1},
            { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
              0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
      },
#endif
      {0x0f0, /* Closed Caption, NTSC */
            {V4L2_SLICED_CAPTION_525,21,21,1},
            { 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
              0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
      },
      {0x110, /* Wide Screen Signal, PAL/SECAM */
            {V4L2_SLICED_WSS_625,23,23,1},
            { 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
              0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
      },
#if 0
      {0x130, /* Wide Screen Signal, NTSC C */
            {V4L2_SLICED_WSS_525,20,20,1},
            { 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
              0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
      },
      {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
            {V4l2_SLICED_VITC_625,6,22,0},
            { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
              0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
      },
      {0x170, /* Vertical Interval Timecode (VITC), NTSC */
            {V4l2_SLICED_VITC_525,10,20,0},
            { 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
              0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
      },
#endif
      {0x190, /* Video Program System (VPS), PAL */
            {V4L2_SLICED_VPS,16,16,0},
            { 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
              0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
      },
      /* 0x1d0 User programmable */

      /* End of struct */
      { (u16)-1 }
};

static int tvp5150_write_inittab(struct i2c_client *c,
                        const struct i2c_reg_value *regs)
{
      while (regs->reg != 0xff) {
            tvp5150_write(c, regs->reg, regs->value);
            regs++;
      }
      return 0;
}

static int tvp5150_vdp_init(struct i2c_client *c,
                        const struct i2c_vbi_ram_value *regs)
{
      unsigned int i;

      /* Disable Full Field */
      tvp5150_write(c, TVP5150_FULL_FIELD_ENA, 0);

      /* Before programming, Line mode should be at 0xff */
      for (i=TVP5150_LINE_MODE_INI; i<=TVP5150_LINE_MODE_END; i++)
            tvp5150_write(c, i, 0xff);

      /* Load Ram Table */
      while (regs->reg != (u16)-1 ) {
            tvp5150_write(c, TVP5150_CONF_RAM_ADDR_HIGH,regs->reg>>8);
            tvp5150_write(c, TVP5150_CONF_RAM_ADDR_LOW,regs->reg);

            for (i=0;i<16;i++)
                  tvp5150_write(c, TVP5150_VDP_CONF_RAM_DATA,regs->values[i]);

            regs++;
      }
      return 0;
}

/* Fills VBI capabilities based on i2c_vbi_ram_value struct */
static void tvp5150_vbi_get_cap(const struct i2c_vbi_ram_value *regs,
                        struct v4l2_sliced_vbi_cap *cap)
{
      int line;

      memset(cap, 0, sizeof *cap);

      while (regs->reg != (u16)-1 ) {
            for (line=regs->type.ini_line;line<=regs->type.end_line;line++) {
                  cap->service_lines[0][line] |= regs->type.vbi_type;
            }
            cap->service_set |= regs->type.vbi_type;

            regs++;
      }
}

/* Set vbi processing
 * type - one of tvp5150_vbi_types
 * line - line to gather data
 * fields: bit 0 field1, bit 1, field2
 * flags (default=0xf0) is a bitmask, were set means:
 *    bit 7: enable filtering null bytes on CC
 *    bit 6: send data also to FIFO
 *    bit 5: don't allow data with errors on FIFO
 *    bit 4: enable ECC when possible
 * pix_align = pix alignment:
 *    LSB = field1
 *    MSB = field2
 */
static int tvp5150_set_vbi(struct i2c_client *c,
                  const struct i2c_vbi_ram_value *regs,
                  unsigned int type,u8 flags, int line,
                  const int fields)
{
      struct tvp5150 *decoder = i2c_get_clientdata(c);
      v4l2_std_id std=decoder->norm;
      u8 reg;
      int pos=0;

      if (std == V4L2_STD_ALL) {
            tvp5150_err("VBI can't be configured without knowing number of lines\n");
            return 0;
      } else if (std && V4L2_STD_625_50) {
            /* Don't follow NTSC Line number convension */
            line += 3;
      }

      if (line<6||line>27)
            return 0;

      while (regs->reg != (u16)-1 ) {
            if ((type & regs->type.vbi_type) &&
                (line>=regs->type.ini_line) &&
                (line<=regs->type.end_line)) {
                  type=regs->type.vbi_type;
                  break;
            }

            regs++;
            pos++;
      }
      if (regs->reg == (u16)-1)
            return 0;

      type=pos | (flags & 0xf0);
      reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;

      if (fields&1) {
            tvp5150_write(c, reg, type);
      }

      if (fields&2) {
            tvp5150_write(c, reg+1, type);
      }

      return type;
}

static int tvp5150_get_vbi(struct i2c_client *c,
                  const struct i2c_vbi_ram_value *regs, int line)
{
      struct tvp5150 *decoder = i2c_get_clientdata(c);
      v4l2_std_id std=decoder->norm;
      u8 reg;
      int pos, type=0;

      if (std == V4L2_STD_ALL) {
            tvp5150_err("VBI can't be configured without knowing number of lines\n");
            return 0;
      } else if (std && V4L2_STD_625_50) {
            /* Don't follow NTSC Line number convension */
            line += 3;
      }

      if (line<6||line>27)
            return 0;

      reg=((line-6)<<1)+TVP5150_LINE_MODE_INI;

      pos=tvp5150_read(c, reg)&0x0f;
      if (pos<0x0f)
            type=regs[pos].type.vbi_type;

      pos=tvp5150_read(c, reg+1)&0x0f;
      if (pos<0x0f)
            type|=regs[pos].type.vbi_type;

      return type;
}
static int tvp5150_set_std(struct i2c_client *c, v4l2_std_id std)
{
      struct tvp5150 *decoder = i2c_get_clientdata(c);
      int fmt=0;

      decoder->norm=std;

      /* First tests should be against specific std */

      if (std == V4L2_STD_ALL) {
            fmt=0;      /* Autodetect mode */
      } else if (std & V4L2_STD_NTSC_443) {
            fmt=0xa;
      } else if (std & V4L2_STD_PAL_M) {
            fmt=0x6;
      } else if (std & (V4L2_STD_PAL_N| V4L2_STD_PAL_Nc)) {
            fmt=0x8;
      } else {
            /* Then, test against generic ones */
            if (std & V4L2_STD_NTSC) {
                  fmt=0x2;
            } else if (std & V4L2_STD_PAL) {
                  fmt=0x4;
            } else if (std & V4L2_STD_SECAM) {
                  fmt=0xc;
            }
      }

      tvp5150_dbg(1,"Set video std register to %d.\n",fmt);
      tvp5150_write(c, TVP5150_VIDEO_STD, fmt);

      return 0;
}

static inline void tvp5150_reset(struct i2c_client *c)
{
      u8 msb_id, lsb_id, msb_rom, lsb_rom;
      struct tvp5150 *decoder = i2c_get_clientdata(c);

      msb_id=tvp5150_read(c,TVP5150_MSB_DEV_ID);
      lsb_id=tvp5150_read(c,TVP5150_LSB_DEV_ID);
      msb_rom=tvp5150_read(c,TVP5150_ROM_MAJOR_VER);
      lsb_rom=tvp5150_read(c,TVP5150_ROM_MINOR_VER);

      if ((msb_rom==4)&&(lsb_rom==0)) { /* Is TVP5150AM1 */
            tvp5150_info("tvp%02x%02xam1 detected.\n",msb_id, lsb_id);

            /* ITU-T BT.656.4 timing */
            tvp5150_write(c,TVP5150_REV_SELECT,0);
      } else {
            if ((msb_rom==3)||(lsb_rom==0x21)) { /* Is TVP5150A */
                  tvp5150_info("tvp%02x%02xa detected.\n",msb_id, lsb_id);
            } else {
                  tvp5150_info("*** unknown tvp%02x%02x chip detected.\n",msb_id,lsb_id);
                  tvp5150_info("*** Rom ver is %d.%d\n",msb_rom,lsb_rom);
            }
      }

      /* Initializes TVP5150 to its default values */
      tvp5150_write_inittab(c, tvp5150_init_default);

      /* Initializes VDP registers */
      tvp5150_vdp_init(c, vbi_ram_default);

      /* Selects decoder input */
      tvp5150_selmux(c);

      /* Initializes TVP5150 to stream enabled values */
      tvp5150_write_inittab(c, tvp5150_init_enable);

      /* Initialize image preferences */
      tvp5150_write(c, TVP5150_BRIGHT_CTL, decoder->bright);
      tvp5150_write(c, TVP5150_CONTRAST_CTL, decoder->contrast);
      tvp5150_write(c, TVP5150_SATURATION_CTL, decoder->contrast);
      tvp5150_write(c, TVP5150_HUE_CTL, decoder->hue);

      tvp5150_set_std(c, decoder->norm);
};

static int tvp5150_get_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/*    struct tvp5150 *decoder = i2c_get_clientdata(c); */

      switch (ctrl->id) {
      case V4L2_CID_BRIGHTNESS:
            ctrl->value = tvp5150_read(c, TVP5150_BRIGHT_CTL);
            return 0;
      case V4L2_CID_CONTRAST:
            ctrl->value = tvp5150_read(c, TVP5150_CONTRAST_CTL);
            return 0;
      case V4L2_CID_SATURATION:
            ctrl->value = tvp5150_read(c, TVP5150_SATURATION_CTL);
            return 0;
      case V4L2_CID_HUE:
            ctrl->value = tvp5150_read(c, TVP5150_HUE_CTL);
            return 0;
      }
      return -EINVAL;
}

static int tvp5150_set_ctrl(struct i2c_client *c, struct v4l2_control *ctrl)
{
/*    struct tvp5150 *decoder = i2c_get_clientdata(c); */

      switch (ctrl->id) {
      case V4L2_CID_BRIGHTNESS:
            tvp5150_write(c, TVP5150_BRIGHT_CTL, ctrl->value);
            return 0;
      case V4L2_CID_CONTRAST:
            tvp5150_write(c, TVP5150_CONTRAST_CTL, ctrl->value);
            return 0;
      case V4L2_CID_SATURATION:
            tvp5150_write(c, TVP5150_SATURATION_CTL, ctrl->value);
            return 0;
      case V4L2_CID_HUE:
            tvp5150_write(c, TVP5150_HUE_CTL, ctrl->value);
            return 0;
      }
      return -EINVAL;
}

/****************************************************************************
                  I2C Command
 ****************************************************************************/
static int tvp5150_command(struct i2c_client *c,
                     unsigned int cmd, void *arg)
{
      struct tvp5150 *decoder = i2c_get_clientdata(c);

      switch (cmd) {

      case 0:
      case VIDIOC_INT_RESET:
            tvp5150_reset(c);
            break;
      case VIDIOC_INT_G_VIDEO_ROUTING:
      {
            struct v4l2_routing *route = arg;

            *route = decoder->route;
            break;
      }
      case VIDIOC_INT_S_VIDEO_ROUTING:
      {
            struct v4l2_routing *route = arg;

            decoder->route = *route;
            tvp5150_selmux(c);
            break;
      }
      case VIDIOC_S_STD:
            if (decoder->norm == *(v4l2_std_id *)arg)
                  break;
            return tvp5150_set_std(c, *(v4l2_std_id *)arg);
      case VIDIOC_G_STD:
            *(v4l2_std_id *)arg = decoder->norm;
            break;

      case VIDIOC_G_SLICED_VBI_CAP:
      {
            struct v4l2_sliced_vbi_cap *cap = arg;
            tvp5150_dbg(1, "VIDIOC_G_SLICED_VBI_CAP\n");

            tvp5150_vbi_get_cap(vbi_ram_default, cap);
            break;
      }
      case VIDIOC_S_FMT:
      {
            struct v4l2_format *fmt;
            struct v4l2_sliced_vbi_format *svbi;
            int i;

            fmt = arg;
            if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
                  return -EINVAL;
            svbi = &fmt->fmt.sliced;
            if (svbi->service_set != 0) {
                  for (i = 0; i <= 23; i++) {
                        svbi->service_lines[1][i] = 0;

                        svbi->service_lines[0][i]=tvp5150_set_vbi(c,
                               vbi_ram_default,
                               svbi->service_lines[0][i],0xf0,i,3);
                  }
                  /* Enables FIFO */
                  tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,1);
            } else {
                  /* Disables FIFO*/
                  tvp5150_write(c, TVP5150_FIFO_OUT_CTRL,0);

                  /* Disable Full Field */
                  tvp5150_write(c, TVP5150_FULL_FIELD_ENA, 0);

                  /* Disable Line modes */
                  for (i=TVP5150_LINE_MODE_INI; i<=TVP5150_LINE_MODE_END; i++)
                        tvp5150_write(c, i, 0xff);
            }
            break;
      }
      case VIDIOC_G_FMT:
      {
            struct v4l2_format *fmt;
            struct v4l2_sliced_vbi_format *svbi;

            int i, mask=0;

            fmt = arg;
            if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
                  return -EINVAL;
            svbi = &fmt->fmt.sliced;
            memset(svbi, 0, sizeof(*svbi));

            for (i = 0; i <= 23; i++) {
                  svbi->service_lines[0][i]=tvp5150_get_vbi(c,
                        vbi_ram_default,i);
                  mask|=svbi->service_lines[0][i];
            }
            svbi->service_set=mask;
            break;
      }

#ifdef CONFIG_VIDEO_ADV_DEBUG
      case VIDIOC_DBG_G_REGISTER:
      case VIDIOC_DBG_S_REGISTER:
      {
            struct v4l2_register *reg = arg;

            if (!v4l2_chip_match_i2c_client(c, reg->match_type, reg->match_chip))
                  return -EINVAL;
            if (!capable(CAP_SYS_ADMIN))
                  return -EPERM;
            if (cmd == VIDIOC_DBG_G_REGISTER)
                  reg->val = tvp5150_read(c, reg->reg & 0xff);
            else
                  tvp5150_write(c, reg->reg & 0xff, reg->val & 0xff);
            break;
      }
#endif

      case VIDIOC_LOG_STATUS:
            dump_reg(c);
            break;

      case VIDIOC_G_TUNER:
            {
                  struct v4l2_tuner *vt = arg;
                  int status = tvp5150_read(c, 0x88);

                  vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
                  break;
            }
      case VIDIOC_QUERYCTRL:
            {
                  struct v4l2_queryctrl *qc = arg;
                  int i;

                  tvp5150_dbg(1, "VIDIOC_QUERYCTRL called\n");

                  for (i = 0; i < ARRAY_SIZE(tvp5150_qctrl); i++)
                        if (qc->id && qc->id == tvp5150_qctrl[i].id) {
                              memcpy(qc, &(tvp5150_qctrl[i]),
                                     sizeof(*qc));
                              return 0;
                        }

                  return -EINVAL;
            }
      case VIDIOC_G_CTRL:
            {
                  struct v4l2_control *ctrl = arg;
                  tvp5150_dbg(1, "VIDIOC_G_CTRL called\n");

                  return tvp5150_get_ctrl(c, ctrl);
            }
      case VIDIOC_S_CTRL:
            {
                  struct v4l2_control *ctrl = arg;
                  u8 i, n;
                  n = ARRAY_SIZE(tvp5150_qctrl);
                  for (i = 0; i < n; i++)
                        if (ctrl->id == tvp5150_qctrl[i].id) {
                              if (ctrl->value <
                                  tvp5150_qctrl[i].minimum
                                  || ctrl->value >
                                  tvp5150_qctrl[i].maximum)
                                    return -ERANGE;
                              tvp5150_dbg(1,
                                    "VIDIOC_S_CTRL: id=%d, value=%d\n",
                                    ctrl->id, ctrl->value);
                              return tvp5150_set_ctrl(c, ctrl);
                        }
                  return -EINVAL;
            }

      default:
            return -EINVAL;
      }

      return 0;
}

/****************************************************************************
                  I2C Client & Driver
 ****************************************************************************/
static struct i2c_driver driver;

static struct i2c_client client_template = {
      .name = "(unset)",
      .driver = &driver,
};

static int tvp5150_detect_client(struct i2c_adapter *adapter,
                         int address, int kind)
{
      struct i2c_client *c;
      struct tvp5150 *core;
      int rv;

      if (debug)
            printk( KERN_INFO
            "tvp5150.c: detecting tvp5150 client on address 0x%x\n",
            address << 1);

      client_template.adapter = adapter;
      client_template.addr = address;

      /* Check if the adapter supports the needed features */
      if (!i2c_check_functionality
          (adapter,
           I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
            return 0;

      c = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
      if (c == 0)
            return -ENOMEM;
      memcpy(c, &client_template, sizeof(struct i2c_client));

      core = kzalloc(sizeof(struct tvp5150), GFP_KERNEL);
      if (core == 0) {
            kfree(c);
            return -ENOMEM;
      }
      i2c_set_clientdata(c, core);

      rv = i2c_attach_client(c);

      core->norm = V4L2_STD_ALL;    /* Default is autodetect */
      core->route.input = TVP5150_COMPOSITE1;
      core->enable = 1;
      core->bright = 128;
      core->contrast = 128;
      core->hue = 0;
      core->sat = 128;

      if (rv) {
            kfree(c);
            kfree(core);
            return rv;
      }

      if (debug > 1)
            dump_reg(c);
      return 0;
}

static int tvp5150_attach_adapter(struct i2c_adapter *adapter)
{
      if (debug)
            printk( KERN_INFO
            "tvp5150.c: starting probe for adapter %s (0x%x)\n",
            adapter->name, adapter->id);
      return i2c_probe(adapter, &addr_data, &tvp5150_detect_client);
}

static int tvp5150_detach_client(struct i2c_client *c)
{
      struct tvp5150 *decoder = i2c_get_clientdata(c);
      int err;

      tvp5150_dbg(1,
            "tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
            c->addr << 1);

      err = i2c_detach_client(c);
      if (err) {
            return err;
      }

      kfree(decoder);
      kfree(c);

      return 0;
}

/* ----------------------------------------------------------------------- */

static struct i2c_driver driver = {
      .driver = {
            .name = "tvp5150",
      },
      .id = I2C_DRIVERID_TVP5150,

      .attach_adapter = tvp5150_attach_adapter,
      .detach_client = tvp5150_detach_client,

      .command = tvp5150_command,
};

static int __init tvp5150_init(void)
{
      return i2c_add_driver(&driver);
}

static void __exit tvp5150_exit(void)
{
      i2c_del_driver(&driver);
}

module_init(tvp5150_init);
module_exit(tvp5150_exit);

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