/**************************************************************************************
* Name: lcd_lcdinitialize
*
* Description:
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
*
**************************************************************************************/
static inline void lcd_initialize(void)
{
ginfo("%s: initializing LCD.\n",__FUNCTION__);
calypso_reset_set(RESET_EXT, 0);
usleep(5000);
uwire_init();
usleep(5000);
fb_ssd1783_send_cmdlist(ssd1783_initdata);
}
void lcd_clear()
{
struct ssd1783_cmdlist prepare_disp_write_cmds[] = {
{ CMD, 0x8E },
{ DATA, 0x00 },
{ DATA, 0x00 },
{ DATA, LCD_XRES },
{ DATA, LCD_YRES },
{ END, 0x00 }
};
struct ssd1783_cmdlist nop[] = {
{ CMD, 0x25 }, // NOP command
{ END, 0x00 }
};
fb_ssd1783_send_cmdlist(prepare_disp_write_cmds);
fb_ssd1783_send_cmdlist(nop);
}
static void lcd_write_prepare(unsigned int x1, unsigned int x2, unsigned int y1, unsigned int y2)
{;
DEBUGASSERT( (x1 < x2 )&& (y1 < y2));
struct ssd1783_cmdlist prepare_disp_write_cmds[] = {
{ CMD, 0x15 }, /* set column address */
{ DATA, x1 },
{ DATA, x2 },
{ CMD, 0x75 }, /* set page address (Y) */
{ DATA, y1 },
{ DATA, y2 },
{ CMD, 0x5c }, /* enter write display ram mode */
{ END, 0x00 }
};
dbg("x1:%d, x2:%d, y1:%d, y2:%d\n",x1, x2,y1, y2);
fb_ssd1783_send_cmdlist(prepare_disp_write_cmds);
}
int lcd_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
size_t npixels)
{
int i;
FAR const uint16_t *src = (FAR const uint16_t*) buffer;
/* Buffer must be provided and aligned to a 16-bit address boundary */
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
/* Write the run to GRAM. */
lcd_write_prepare(col,col+npixels, row,row+1);
for (i = 0; i < npixels; i++)
{
write_data(*src++);
}
fb_ssd1783_send_cmdlist(nop);
return OK;
}
