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XMC4300: LCD module: Include display control function

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This commit is contained in:
Raman 2019-03-01 12:22:28 +05:30
parent dd5950a639
commit c7796cf4be
1 changed files with 17 additions and 22 deletions
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39
src/platform/xmc4000/lcd.c
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@ -535,35 +535,29 @@ static int xmc_lcd_cursor( lua_State *L )
return 0;
}
/* // Perform display operations, selected by a string parameter. */
/* static int lcd_display( lua_State *L ) */
/* { */
/* static const char const *args[] = */
/* { "off", "on", "left", "right", NULL }; */
// Perform display operations, selected by a string parameter.
// xmc4000.lcd.display( control_string )
static int xmc_lcd_display( lua_State *L )
{
static const char const *args[] =
{ "off", "on", "left", "right", NULL };
/* switch ( luaL_checkoption( L, 1, NULL, args ) ) */
/* { */
/* case 0: display_is_off = 1; */
/* send_command( LCD_CMD_DISPLAY_OFF ); */
/* break; */
/* case 1: display_is_off = 0; */
/* send_command( cursor_type ); // Turns display on */
/* break; */
/* case 2: send_command( LCD_CMD_SHIFT_DISPLAY_LEFT ); */
/* break; */
/* case 3: send_command( LCD_CMD_SHIFT_DISPLAY_RIGHT ); */
/* break; */
/* default: return luaL_argerror( L, 1, NULL ); */
/* } */
/* return 0; */
/* } */
switch( luaL_checkoption( L, 1, NULL, args ) )
{
case 0: lcd_no_display( &xmc_lcd ); break;
case 1: lcd_display( &xmc_lcd ); break;
case 2: lcd_scroll_display_left( &xmc_lcd ); break;
case 3: lcd_scroll_display_right( &xmc_lcd ); break;
default: return luaL_argerror( L, 1, NULL );
}
return 0;
}
// Lua: xmc4000.lcd.definechar( code, glyph )
// code: 0-7
// glyph: a table of up to 8 numbers with values 0-31.
// If less than 8 are supplied, the bottom rows are blanked.
// If more than 8 are supplied, the extra are ignored.
static int xmc_lcd_definechar( lua_State *L ) {
int code; // The character code we are defining, 0-7
size_t datalen; // The number of elements in the glyph table
@ -608,5 +602,6 @@ const LUA_REG_TYPE lcd_map[] =
{ LSTRKEY( "print" ), LFUNCVAL( xmc_lcd_print ) },
{ LSTRKEY( "cursor" ), LFUNCVAL( xmc_lcd_cursor ) },
{ LSTRKEY( "definechar" ), LFUNCVAL( xmc_lcd_definechar ) },
{ LSTRKEY( "display" ), LFUNCVAL( xmc_lcd_display ) },
{ LNILKEY, LNILVAL }
};