int BFM_BD1_newdata(int id, int data)
{
int change = 0;
int cursor;
if ( bd1[id].user_def )
{
bd1[id].user_def--;
bd1[id].user_data <<= 8;
bd1[id].user_data |= data;
if ( bd1[id].user_def )
{
return 0;
}
data = '@';
change = BD1_setdata(id, bd1[id].user_def, data);
}
else
{
}
switch ( data & 0xF0 )
{
case 0x80: // 0x80 - 0x8F Set display blanking
bd1[id].display_blanking = data & 0x0F;
change = 1;
break;
case 0x90: // 0x90 - 0x9F Set cursor pos
bd1[id].cursor_pos = data & 0x0F;
bd1[id].scroll_active = 0;
if ( bd1[id].display_mode == 2 )
{
if ( bd1[id].cursor_pos >= bd1[id].window_end) bd1[id].scroll_active = 1;
}
break;
case 0xA0: // 0xA0 - 0xAF Set display mode
bd1[id].display_mode = data &0x03;
break;
case 0xB0: // 0xB0 - 0xBF Clear display area
switch ( data & 0x03 )
{
case 0x00: // clr nothing
break;
case 0x01: // clr inside window
if ( bd1[id].window_size > 0 )
{
memset( bd1[id].string+bd1[id].window_start, ' ',bd1[id].window_size );
}
break;
case 0x02: // clr outside window
if ( bd1[id].window_size > 0 )
{
if ( bd1[id].window_start > 0 )
{
memset( bd1[id].string, ' ', bd1[id].window_start);
for (cursor = 0; cursor < bd1[id].window_start; cursor++)
{
bd1[id].segments[cursor] = 0x0000;
}
}
if (bd1[id].window_end < 15 )
{
memset( bd1[id].string+bd1[id].window_end, ' ', 15-bd1[id].window_end);
for (cursor = bd1[id].window_end; cursor < 15-bd1[id].window_end; cursor++)
{
bd1[id].segments[cursor] = 0x0000;
}
}
}
case 0x03: // clr entire display
memset(bd1[id].string, ' ' , 16);
for (cursor = 0; cursor < 16; cursor++)
{
bd1[id].segments[cursor] = 0x0000;
}
break;
}
change = 1;
break;
case 0xC0: // 0xC0 - 0xCF Set flash rate
bd1[id].flash_rate = data & 0x0F;
break;
case 0xD0: // 0xD0 - 0xDF Set Flash control
bd1[id].flash_control = data & 0x03;
break;
case 0xE0: // 0xE0 - 0xEF Set window start pos
bd1[id].window_start = data &0x0F;
bd1[id].window_size = (bd1[id].window_end - bd1[id].window_start)+1;
break;
case 0xF0: // 0xF0 - 0xFF Set window end pos
bd1[id].window_end = data &0x0F;
bd1[id].window_size = (bd1[id].window_end - bd1[id].window_start)+1;
bd1[id].scroll_active = 0;
if ( bd1[id].display_mode == 2 )
{
if ( bd1[id].cursor_pos >= bd1[id].window_end)
{
bd1[id].scroll_active = 1;
bd1[id].cursor_pos = bd1[id].window_end;
}
}
break;
default: // normal character
change = BD1_setdata(id, BD1charset[data & 0x3F], data);
break;
}
return change;
}
int vfd_newdata(int id, int data)
{
int change = 0;
int cursor;
switch ( vfds[id].type )
{
case VFDTYPE_BFMBD1:
if ( vfds[id].user_def )
{
vfds[id].user_def--;
vfds[id].user_data <<= 8;
vfds[id].user_data |= data;
if ( vfds[id].user_def )
{
return 0;
}
data = '@';
change = BD1_setdata(id, vfds[id].user_def, data);
}
else
{
}
switch ( data & 0xF0 )
{
case 0x80: /* 0x80 - 0x8F Set display blanking */
vfds[id].display_blanking = data & 0x0F;
change = 1;
break;
case 0x90: /* 0x90 - 0x9F Set cursor pos */
vfds[id].cursor_pos = data & 0x0F;
vfds[id].scroll_active = 0;
if ( vfds[id].display_mode == 2 )
{
if ( vfds[id].cursor_pos >= vfds[id].window_end) vfds[id].scroll_active = 1;
}
break;
case 0xA0: /* 0xA0 - 0xAF Set display mode */
vfds[id].display_mode = data &0x03;
break;
case 0xB0: /* 0xB0 - 0xBF Clear display area */
switch ( data & 0x03 )
{
case 0x00: /* clr nothing */
break;
case 0x01: /* clr inside window */
if ( vfds[id].window_size > 0 )
{
memset( vfds[id].string+vfds[id].window_start, ' ',vfds[id].window_size );
}
break;
case 0x02: /* clr outside window */
if ( vfds[id].window_size > 0 )
{
if ( vfds[id].window_start > 0 )
{
memset( vfds[id].string, ' ', vfds[id].window_start);
for (cursor = 0; cursor < vfds[id].window_start; cursor++)
{
vfds[id].segments[cursor] = 0x0000;
}
}
if (vfds[id].window_end < 15 )
{
memset( vfds[id].string+vfds[id].window_end, ' ', 15-vfds[id].window_end);
for (cursor = vfds[id].window_end; cursor < 15-vfds[id].window_end; cursor++)
{
vfds[id].segments[cursor] = 0x0000;
}
}
}
case 0x03: /* clr entire display */
memset(vfds[id].string, ' ' , 16);
for (cursor = 0; cursor < 16; cursor++)
{
vfds[id].segments[cursor] = 0x0000;
}
break;
}
change = 1;
break;
case 0xC0: /* 0xC0 - 0xCF Set flash rate */
vfds[id].flash_rate = data & 0x0F;
break;
case 0xD0: /* 0xD0 - 0xDF Set Flash control */
vfds[id].flash_control = data & 0x03;
break;
case 0xE0: /* 0xE0 - 0xEF Set window start pos */
vfds[id].window_start = data &0x0F;
vfds[id].window_size = (vfds[id].window_end - vfds[id].window_start)+1;
break;
case 0xF0: /* 0xF0 - 0xFF Set window end pos */
vfds[id].window_end = data &0x0F;
vfds[id].window_size = (vfds[id].window_end - vfds[id].window_start)+1;
vfds[id].scroll_active = 0;
if ( vfds[id].display_mode == 2 )
{
if ( vfds[id].cursor_pos >= vfds[id].window_end)
{
vfds[id].scroll_active = 1;
vfds[id].cursor_pos = vfds[id].window_end;
}
}
break;
default: /* normal character */
change = BD1_setdata(id, BFMcharset[data & 0x3F], data);
break;
}
break;
case VFDTYPE_MSC1937:
if ( data & 0x80 )
{ /* Control data received */
if ( (data & 0xF0) == 0xA0 ) /* 1010 xxxx */
{ /* 1010 xxxx Buffer Pointer control */
vfds[id].cursor_pos = poslut1937[data & 0x0F];
logerror("CUR%d\n", vfds[id].cursor_pos);
}
else if ( (data & 0xF0) == 0xC0 ) /* 1100 xxxx */
{ /* 1100 xxxx Set number of digits */
data &= 0x07;
if ( data == 0 ) vfds[id].window_size = 16;
else vfds[id].window_size = data+8;
vfds[id].window_start = 0;
vfds[id].window_end = vfds[id].window_size-1;
}
else if ( (data & 0xE0) == 0xE0 ) /* 111x xxxx */
{ /* 111x xxxx Set duty cycle ( brightness ) */
vfds[id].brightness = (data & 0xF)*2;
change = 1;
}
else if ( (data & 0xE0) == 0x80 ) /* 100x --- */
{ /* 100x xxxx Test mode */
}
}
else
{ /* Display data */
data &= 0x3F;
change = 1;
switch ( data )
{
case 0x2C: /* ; */
case 0x2E: /* */
vfds[id].segments[vfds[id].pcursor_pos] |= (1<<12);
break;
default :
vfds[id].pcursor_pos = vfds[id].cursor_pos;
vfds[id].string[ vfds[id].cursor_pos ] = OKI1937ASCII[data];
vfds[id].segments[vfds[id].cursor_pos] = BFMcharset[data & 0x3F];
vfds[id].cursor_pos++;
if ( vfds[id].cursor_pos > vfds[id].window_end )
{
vfds[id].cursor_pos = 0;
}
}
}
break;
}
return change;
}
