xenocara/xserver/hw/xfree86/i2c/bt829.c

/* TODO: clean up/fix CC code */

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif

#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#include "xf86.h"
#include "xf86i2c.h"
#include "bt829.h"
#include "i2c_def.h"

/* Changing the following settings (especially VCROP) may */
/* require modifying code that calls this driver.         */
#define HCROP	0	/* amount to crop from the left and right edges */
#define VCROP	0	/* amount to crop from the top and bottom edges */

#define BTVERSION	(bt->id>>4)

#define H(X)		( ((X)>>8) & 0xFF )
#define L(X)		( (X) & 0xFF )

#define LIMIT(X,A,B)	(((X)<(A)) ? (A) : ((X)>(B)) ? (B) : (X) )

/* Bt829 family chip ID's */
#define BT815	0x02
#define BT817	0x06
#define BT819	0x07
#define BT827	0x0C
#define BT829	0x0E

/* Bt829 registers */
#define STATUS		0x00	/* Device Status */
#define IFORM		0x01	/* Input Format */
#define TDEC		0x02	/* Temporal Decimation */
#define CROP		0x03	/* MSB Cropping */
#define VDELAY_LO	0x04	/* Vertical Delay */
#define VACTIVE_LO	0x05	/* Vertical Active */
#define HDELAY_LO	0x06	/* Horizontal Delay */
#define HACTIVE_LO	0x07	/* Horizontal Active */
#define HSCALE_HI	0x08	/* Horizontal Scaling */
#define HSCALE_LO	0x09	/* Horizontal Scaling */
#define BRIGHT		0x0A	/* Brightness Control */
#define CONTROL		0x0B	/* Miscellaneous Control */
#define CONTRAST_LO	0x0C	/* Luma Gain (Contrast) */
#define SAT_U_LO	0x0D	/* Chroma (U) Gain (Saturation) */
#define SAT_V_LO	0x0E	/* Chroma (V) Gain (Saturation) */
#define HUE		0x0F	/* Hue Control */
#define SCLOOP		0x10	/* SC Loop Control */
#define WC_UP		0x11	/* White Crush Up Count */
#define OFORM		0x12	/* Output Format */
#define VSCALE_HI	0x13	/* Vertical Scaling */
#define VSCALE_LO	0x14	/* Vertical Scaling */
#define TEST		0x15	/* Test Control */
#define VPOLE		0x16	/* Video Timing Polarity */
#define IDCODE		0x17	/* ID Code */
#define ADELAY		0x18	/* AGC Delay */
#define BDELAY		0x19	/* Burst Gate Delay */
#define ADC		0x1A	/* ADC Interface */
#define VTC		0x1B	/* Video Timing Control */
#define CC_STATUS	0x1C	/* Extended Data Services/Closed Capt Status */
#define CC_DATA		0x1D	/* Extended Data Services/Closed Capt Data */
#define WC_DN		0x1E	/* White Crush Down Count */
#define SRESET		0x1F	/* Software Reset */
#define P_IO		0x3F	/* Programmable I/O */

static CARD8 btread(BT829Ptr bt, CARD8 reg)
{
  CARD8 v;

  I2C_WriteRead(&(bt->d), &reg, 1, &v, 1);

  return v;
}

static void btwrite(BT829Ptr bt, CARD8 reg, CARD8 val)
{
  CARD8 data[2];

  data[0] = reg;
  data[1] = val;
  I2C_WriteRead(&(bt->d), data, 2, NULL, 0);
}

/*
 * Register access
 */
static void btwrite_status(BT829Ptr bt) /* STATUS */
{
  btwrite(bt, STATUS, 0x00); /* clear */
}

static void btwrite_iform(BT829Ptr bt) /* IFORM */
{
  int xtsel;

  switch (bt->format) {
    case BT829_NTSC:
    case BT829_NTSC_JAPAN:
    case BT829_PAL_M:
    case BT829_PAL_N_COMB: /* gatos says xtsel = 2 */
      xtsel = 1;
      break;
    case BT829_PAL:
    case BT829_PAL_N:
    case BT829_SECAM:
      xtsel = 2;
      break;
    default: /* shouldn't get here */
      xtsel = 3; /* hardware default */
      break;
  }

  btwrite(bt, IFORM, (bt->mux<<5) | (xtsel<<3) | bt->format);
}

static void btwrite_tdec(BT829Ptr bt) /* TDEC */
{
  /* use default */
}

static void btwrite_crop(BT829Ptr bt) /* CROP */
{
  btwrite(bt, CROP, (H(bt->vdelay)<<6) | (H(bt->vactive)<<4) |
    (H(bt->hdelay)<<2) | H(bt->width));
}

static void btwrite_vdelay_lo(BT829Ptr bt) /* VDELAY_LO */
{
  btwrite(bt, VDELAY_LO, L(bt->vdelay));
}

static void btwrite_vactive_lo(BT829Ptr bt) /* VACTIVE_LO */
{
  btwrite(bt, VACTIVE_LO, L(bt->vactive));
}

static void btwrite_hdelay_lo(BT829Ptr bt) /* HDELAY_LO */
{
  btwrite(bt, HDELAY_LO, L(bt->hdelay));
}

static void btwrite_hactive_lo(BT829Ptr bt) /* HACTIVE_LO */
{
  btwrite(bt, HACTIVE_LO, L(bt->width));
}

static void btwrite_hscale_hi(BT829Ptr bt) /* HSCALE_HI */
{
  btwrite(bt, HSCALE_HI, H(bt->hscale));
}

static void btwrite_hscale_lo(BT829Ptr bt) /* HSCALE_LO */
{
  btwrite(bt, HSCALE_LO, L(bt->hscale));
}

static void btwrite_bright(BT829Ptr bt) /* BRIGHT */
{
  btwrite(bt, BRIGHT, bt->brightness);
}

static void btwrite_control(BT829Ptr bt) /* CONTROL */
{
  int ldec;

  /* The data sheet says ldec should always be 0 for SECAM */
  /* but the picture quality is better with ldec = 1       */
  ldec = (bt->width > 360); /* gatos says 384 */

  btwrite(bt, CONTROL,
    ((bt->mux==bt->svideo_mux) ? 0xC0:0x00) | /* LNOTCH and COMP */
    (ldec<<5) | (H(bt->contrast)<<2) | (H(bt->sat_u)<<1) | H(bt->sat_v));
}

static void btwrite_contrast_lo(BT829Ptr bt) /* CONTRAST_LO */
{
  btwrite(bt, CONTRAST_LO, L(bt->contrast));
}

static void btwrite_sat_u_lo(BT829Ptr bt) /* SAT_U_LO */
{
  btwrite(bt, SAT_U_LO, L(bt->sat_u));
}

static void btwrite_sat_v_lo(BT829Ptr bt) /* SAT_V_LO */
{
  btwrite(bt, SAT_V_LO, L(bt->sat_v));
}

static void btwrite_hue(BT829Ptr bt) /* HUE */
{
  btwrite(bt, HUE, bt->hue);
}

static void btwrite_scloop(BT829Ptr bt) /* SCLOOP */
{
  if (BTVERSION >= BT827) {
    btwrite(bt, SCLOOP,
      (bt->format==BT829_SECAM) ? 0x10:0x00 /* QCIF or AUTO */
    );
  }
}

static void btwrite_wc_up(BT829Ptr bt) /* WC_UP */
{
  if (BTVERSION >= BT827) {
    /* use default */
  }
}

static void btwrite_oform(BT829Ptr bt) /* OFORM */
{
  btwrite(bt, OFORM, (bt->code<<3) | (bt->len<<2) |
    0x02 /* RANGE = 0, CORE = 0, VBI_FRAME = 0, OES = 2 (default) */
  );
}

static void btwrite_vscale_hi(BT829Ptr bt) /* VSCALE_HI */
{
  btwrite(bt, VSCALE_HI, H(bt->vscale) |
    0x60 /* YCOMB = 0, COMB = 1, INT = 1 (default) */
  );
}

static void btwrite_vscale_lo(BT829Ptr bt) /* VSCALE_LO */
{
  btwrite(bt, VSCALE_LO, L(bt->vscale));
}

/* TEST should not be written to */

static void btwrite_vpole(BT829Ptr bt) /* VPOLE */
{
  btwrite(bt, VPOLE, (bt->out_en<<7));
}

/* IDCODE is read only */

static void btwrite_adelay(BT829Ptr bt) /* ADELAY */
{
  switch (bt->format) {
    case BT829_NTSC:
    case BT829_NTSC_JAPAN:
    case BT829_PAL_M:
      btwrite(bt, ADELAY, 104);
      break;
    case BT829_PAL:
    case BT829_PAL_N:
    case BT829_SECAM:
    case BT829_PAL_N_COMB:
      btwrite(bt, ADELAY, 127);
      break;
    default: /* shouldn't get here */
      btwrite(bt, ADELAY, 104); /* hardware default */
      break;
  }
}

static void btwrite_bdelay(BT829Ptr bt) /* BDELAY */
{
  switch (bt->format) {
    case BT829_NTSC:
    case BT829_NTSC_JAPAN:
    case BT829_PAL_M:
      btwrite(bt, BDELAY, 93);
      break;
    case BT829_PAL:
    case BT829_PAL_N:
    case BT829_PAL_N_COMB:
      btwrite(bt, BDELAY, 114);
      break;
    case BT829_SECAM:
      btwrite(bt, BDELAY, 160);
      break;
    default: /* shouldn't get here */
      btwrite(bt, BDELAY, 93); /* hardware default */
      break;
  }
}

static void btwrite_adc(BT829Ptr bt) /* ADC */
{
  btwrite(bt, ADC, bt->mux==bt->svideo_mux ? 0x80:0x82); /* CSLEEP = 0 or 1 */
}

static void btwrite_vtc(BT829Ptr bt) /* VTC */
{
  int vfilt = 0; /* hardware default */

  if (BTVERSION > BT827) { /* gatos says >= BT827 */
    switch (bt->format) {
      case BT829_NTSC:
      case BT829_NTSC_JAPAN:
      case BT829_PAL_M:
      case BT829_PAL_N_COMB: /* gatos groups with BT829_PAL */
        if (bt->width <= 360) vfilt = 1; /* gatos says <= 240 */
        if (bt->width <= 180) vfilt = 2; /* gatos says <= 120 */
        if (bt->width <=  90) vfilt = 3; /* gatos says <= 60 */
        break;
      case BT829_PAL:
      case BT829_PAL_N:
      case BT829_SECAM:
        if (bt->width <= 384) vfilt = 1;
        if (bt->width <= 192) vfilt = 2;
        if (bt->width<=  96) vfilt = 3;
        break;
      default: /* shouldn't get here */
        break; /* use hardware default */
    }
    btwrite(bt, VTC, (bt->vbien<<4) | (bt->vbifmt<<3) | vfilt);
  }
}

static void btwrite_cc_status(BT829Ptr bt) /* CC_STATUS */
{ /* FIXME: ATI specific */
  if (BTVERSION >= BT827) {
    if (bt->ccmode == 0) btwrite(bt, CC_STATUS, 0x00);
    /* 0x40 is activate to set the CCVALID line. Not required yet */
    else btwrite(bt, CC_STATUS, (bt->ccmode<<4) | 0x40);
  }
}

/* CC_DATA is read only */

static void btwrite_wc_dn(BT829Ptr bt) /* WC_DN */
{
  if (BTVERSION >= BT827) {
    /* use default */
  }
}

static void bt_reset(BT829Ptr bt) { /* SRESET */
  btwrite(bt, SRESET, 0x0); /* Reset all registers */
}

static void btwrite_p_io(BT829Ptr bt) /* P_IO */
{
  if (BTVERSION >= BT827) {
    btwrite(bt, P_IO, bt->p_io);
  }
}

/*
 * Deal with dependencies
 */
static void propagate_changes(BT829Ptr bt)
{
  CARD16 hdelay, unscaled_hdelay, vdelay, hscale, vscale;
  int htotal, vactive;

  switch (bt->format) {
    case BT829_NTSC:
    case BT829_NTSC_JAPAN:
    case BT829_PAL_M:
      vdelay = 22;
      htotal = 754;
      vactive = 480;
      unscaled_hdelay = 135;
      break;
    case BT829_PAL:
    case BT829_PAL_N:
      vdelay = (bt->tunertype==5) ? 34 : 22;
      htotal = 922;
      vactive = 576;
      unscaled_hdelay = 186;
      break;
    case BT829_SECAM:
      vdelay = 34;
      htotal = 922;
      vactive = 576;
      unscaled_hdelay = 186;
      break;
    case BT829_PAL_N_COMB:
      vdelay = (bt->tunertype==5) ? 34 : 22; /* windows says 22 */
      htotal = 754; /* gatos and windows say 922 */
      vactive = 576;
      unscaled_hdelay = 135; /* gatos and windows say 186 */
      break;
    default: /* shouldn't get here */
      vdelay = 22; /* hardware default */
      htotal = 754;
      vactive = 480; /* hardware default */
      unscaled_hdelay = 135;
      break;
  }

  bt->htotal = htotal; /* Used for error checking in bt829_SetCaptSize */

  hscale = 4096 * htotal / (bt->width + 2 * HCROP)-4096;
  hdelay = (
    HCROP + (bt->width + 2 * HCROP) * unscaled_hdelay / htotal
  ) & 0x3FE;

  vactive = vactive - 2 * VCROP;
  vdelay = vdelay + VCROP;
  vscale = (0x10000 - (512*vactive/bt->height-512)) & 0x1FFF;

  if ((hdelay  != bt->hdelay)  || (vdelay != bt->vdelay) ||
      (vactive != bt->vactive) || (hscale != bt->hscale) ||
      (vscale  != bt->vscale)) {
    bt->hdelay = hdelay;
    bt->vdelay = vdelay;
    bt->vactive = vactive;
    bt->hscale = hscale;
    bt->vscale = vscale;
    btwrite_crop(bt);
    btwrite_vdelay_lo(bt);
    btwrite_vactive_lo(bt);
    btwrite_hdelay_lo(bt);
    btwrite_hscale_hi(bt);
    btwrite_hscale_lo(bt);
    btwrite_control(bt);
    btwrite_vscale_hi(bt);
    btwrite_vscale_lo(bt);
  }
}

static void write_all(BT829Ptr bt)
{
  bt_reset(bt);
  propagate_changes(bt); /* ensure consistency */
  btwrite_iform(bt);
  btwrite_tdec(bt);
  btwrite_crop(bt);
  btwrite_vdelay_lo(bt);
  btwrite_vactive_lo(bt);
  btwrite_hdelay_lo(bt);
  btwrite_hactive_lo(bt);
  btwrite_hscale_hi(bt);
  btwrite_hscale_lo(bt);
  btwrite_bright(bt);
  btwrite_control(bt);
  btwrite_contrast_lo(bt);
  btwrite_sat_u_lo(bt);
  btwrite_sat_v_lo(bt);
  btwrite_hue(bt);
  btwrite_scloop(bt);
  btwrite_wc_up(bt);
  btwrite_oform(bt);
  btwrite_vscale_hi(bt);
  btwrite_vscale_lo(bt);
  btwrite_vpole(bt);
  btwrite_adelay(bt);
  btwrite_bdelay(bt);
  btwrite_adc(bt);
  btwrite_vtc(bt);
/*  btwrite_cc_status(bt); */ /* FIXME: CC code needs cleaning */
  btwrite_wc_dn(bt);
  btwrite_p_io(bt);
}

/*
 * Public functions
 */
BT829Ptr bt829_Detect(I2CBusPtr b, I2CSlaveAddr addr)
{
  BT829Ptr bt;
  I2CByte a;

  bt = xcalloc(1, sizeof(BT829Rec));
  if(bt == NULL) return NULL;
  bt->d.DevName = strdup("BT829 video decoder");
  bt->d.SlaveAddr = addr;
  bt->d.pI2CBus = b;
  bt->d.NextDev = NULL;
  bt->d.StartTimeout = b->StartTimeout;
  bt->d.BitTimeout = b->BitTimeout;
  bt->d.AcknTimeout = b->AcknTimeout;
  bt->d.ByteTimeout = b->ByteTimeout;


  if(!I2C_WriteRead(&(bt->d), NULL, 0, &a, 1))
  {
     free(bt);
     return NULL;
  }

  bt->id = btread(bt,IDCODE);

  free(bt->d.DevName);
  bt->d.DevName = xcalloc(200, sizeof(char));
  switch(BTVERSION){
  	case BT815:
		sprintf(bt->d.DevName, "bt815a video decoder, revision %d",bt->id & 0xf);
		break;
	case BT817:
		sprintf(bt->d.DevName, "bt817a video decoder, revision %d",bt->id & 0xf);
  		break;
	case BT819:
		sprintf(bt->d.DevName, "bt819a video decoder, revision %d",bt->id & 0xf);
  		break;
	case BT827:
		sprintf(bt->d.DevName, "bt827a/b video decoder, revision %d",bt->id & 0xf);
  		break;
	case BT829:
		sprintf(bt->d.DevName, "bt829a/b video decoder, revision %d",bt->id & 0xf);
  		break;
	default:
		sprintf(bt->d.DevName, "bt8xx/unknown video decoder version %d, revision %d",bt->id >> 4,bt->id & 0xf);
  		break;
	}

  /* set default parameters */
  if(!I2CDevInit(&(bt->d)))
  {
     free(bt);
     return NULL;
  }

  bt->tunertype = 1;

  bt->brightness = 0; /* hardware default */
  bt->ccmode = 0;
  bt->code = 0; /* hardware default */
  bt->contrast = 216; /* hardware default */
  bt->format = BT829_NTSC;
  bt->height = 480; /* hardware default for vactive */
  bt->hue = 0; /* hardware default */
  bt->len = 1; /* hardware default */
  bt->mux = BT829_MUX0; /* hardware default */
  bt->out_en = 0; /* hardware default */
  bt->p_io = 0; /* hardware default */
  bt->sat_u = 254; /* hardware default */
  bt->sat_v = 180; /* hardware default */
  bt->vbien = 0; /* hardware default */
  bt->vbifmt = 0; /* hardware default */
  bt->width = 640; /* hardware default for hactive */

  bt->hdelay = 120; /* hardware default */
  bt->hscale = 684; /* hardware default */
  bt->vactive = 480; /* hardware default */
  bt->vdelay = 22; /* hardware default */
  bt->vscale = 0; /* hardware default */

  bt->htotal = 754; /* NTSC */
  bt->svideo_mux = 0; /* no s-video */

  return bt;
}

int bt829_ATIInit(BT829Ptr bt)
{
  bt->code = 1;
  bt->len = 0;
  bt->vbien = 1;
  bt->vbifmt = 1;
  bt->svideo_mux = BT829_MUX1;

  write_all (bt);

  return 0;
}

int bt829_SetFormat(BT829Ptr bt, CARD8 format)
{
  if ((format < 1) || (format > 7)) return -1;
  if ((BTVERSION <= BT819) &&
      (format != BT829_NTSC) && (format != BT829_PAL)) return -1;
  if (format == bt->format) return 0;
  bt->format = format;
  propagate_changes(bt);
  btwrite_iform(bt);
  btwrite_scloop(bt);
  btwrite_adelay(bt);
  btwrite_bdelay(bt);
  btwrite_vtc(bt);
  return 0;
}

int bt829_SetMux(BT829Ptr bt, CARD8 mux)
{
  if ((mux < 1) || (mux > 3)) return -1;
  if (mux == bt->mux) return 0;
  bt->mux = mux;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_iform(bt);
  btwrite_control(bt);
  btwrite_adc(bt);
  return 0;
}

void bt829_SetBrightness(BT829Ptr bt, int brightness)
{
  brightness = LIMIT(brightness,-1000,999); /* ensure -128 <= brightness <= 127 below */
  brightness = (128*brightness)/1000;
  if (brightness == bt->brightness) return;
  bt->brightness = brightness;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_bright(bt);
}

void bt829_SetContrast(BT829Ptr bt, int contrast)
{
  contrast = LIMIT(contrast,-1000,1000);
  contrast = (216*(contrast+1000))/1000;
  if (contrast == bt->contrast) return;
  bt->contrast = contrast;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_control(bt);
  btwrite_contrast_lo(bt);
}

void bt829_SetSaturation(BT829Ptr bt, int saturation)
{
  CARD16 sat_u, sat_v;

  saturation = LIMIT(saturation,-1000,1000);
  sat_u = (254*(saturation+1000))/1000;
  sat_v = (180*(saturation+1000))/1000;
  if ((sat_u == bt->sat_u) && (sat_v == bt->sat_v)) return;
  bt->sat_u = sat_u;
  bt->sat_v = sat_v;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_control(bt);
  btwrite_sat_u_lo(bt);
  btwrite_sat_v_lo(bt);
}

void bt829_SetTint(BT829Ptr bt, int hue)
{
  hue = LIMIT(hue,-1000,999); /* ensure -128 <= hue <= 127 below */
  hue = (128*hue)/1000;
  if (hue == bt->hue) return;
  bt->hue = hue;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_hue(bt);
}

int bt829_SetCaptSize(BT829Ptr bt, int width, int height)
{
  if ((width > bt->htotal - 2 * HCROP) ||
      (16 * width < bt->htotal - 32 * HCROP)) return -1;
  if ((height > bt->vactive) || (16 * height < bt->vactive)) return -1;
  if ((width == bt->width) && (height == bt->height)) return 0;
  bt->width = width;
  bt->height = height;
  propagate_changes(bt);
  btwrite_crop(bt);
  btwrite_hactive_lo(bt);
  btwrite_control(bt);
  btwrite_vtc(bt);
  return 0;
}

int bt829_SetCC(BT829Ptr bt) /* FIXME: should take ccmode as a parameter */
{
  if (BTVERSION < BT827) return -1; /* can't do it */
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_cc_status(bt);
  /* we write to STATUS to reset the CCVALID flag */
  if (bt->ccmode != 0) btwrite_status(bt);
  return 0;
}

void bt829_SetOUT_EN(BT829Ptr bt, BOOL out_en)
{
  out_en = (out_en != 0);
  if (out_en == bt->out_en) return;
  bt->out_en = out_en;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_vpole(bt);
}

void bt829_SetP_IO(BT829Ptr bt, CARD8 p_io)
{
  if (p_io == bt->p_io) return;
  bt->p_io = p_io;
  /* propagate_changes(bt); */ /* no dependencies */
  btwrite_p_io(bt);
}

#define BTREAD(R)	btread(bt,(R))

#if 0

void bt829_getCCdata(BT829Ptr bt,struct CCdata *data)
{
  CARD8 status;
  data->num_valid=0;
  /* wait for buffer to be half full (means 8/16 bytes)
   * either 4 (one of CC/EDS) or 2 (both CC/EDS) frames */
  if(!(BTREAD(STATUS)&0x04)) return; /* could comment this line */
  for(;data->num_valid<CC_FIFO_SIZE;data->num_valid++) {
    status=BTREAD(CC_STATUS);
    if(!(status&0x04)) break;
    data->data[data->num_valid]= BTREAD(CC_DATA)&0x7f;
                         /* stripped high bit (parity) */
    data->status[data->num_valid]= (CCS_EDS*((status&0x02)>>1))  |
                                 (CCS_HIGH*(status&0x01)) |
                                 (CCS_OVER*((status&0x08)>>3)) |
                                 (CCS_PAR*((status&0x80)>>7)) ; }
  btwrite(bt,STATUS,0x00); /* Reset CCVALID status bit */
  return;
}

#endif

/* ------------------------------------------------------------------------ */
/* Debug and report routines */

#define DUMPREG(REG)   \
  xf86DrvMsg(bt->d.pI2CBus->scrnIndex,X_INFO," %-12s (0x%02X) = 0x%02X\n", \
              #REG,REG,BTREAD(REG))

/*static void bt829_dumpregs(BT829Ptr bt)
{
  DUMPREG(STATUS);
  DUMPREG(IFORM);
  DUMPREG(TDEC);
  DUMPREG(CROP);
  DUMPREG(VDELAY_LO);
  DUMPREG(VACTIVE_LO);
  DUMPREG(HDELAY_LO);
  DUMPREG(HACTIVE_LO);
  DUMPREG(HSCALE_HI);
  DUMPREG(HSCALE_LO);
  DUMPREG(BRIGHT);
  DUMPREG(CONTROL);
  DUMPREG(CONTRAST_LO);
  DUMPREG(SAT_U_LO);
  DUMPREG(SAT_V_LO);
  DUMPREG(HUE);
  if (BTVERSION >= BT827) {
    DUMPREG(SCLOOP);
    DUMPREG(WC_UP) ; }
  DUMPREG(OFORM);
  DUMPREG(VSCALE_HI);
  DUMPREG(VSCALE_LO);
  DUMPREG(TEST);
  DUMPREG(VPOLE);
  DUMPREG(IDCODE);
  DUMPREG(ADELAY);
  DUMPREG(BDELAY);
  DUMPREG(ADC);
  if (BTVERSION >= BT827) {
    DUMPREG(VTC);
    DUMPREG(CC_STATUS);
    DUMPREG(CC_DATA);
    DUMPREG(WC_DN);
    DUMPREG(P_IO) ; }
}*/