/***********************************************************************************
Переривання від LCD peripherals
***********************************************************************************/
void LCD_IrqHandler(void)
{
register unsigned long status= AT91C_BASE_LCDC->LCDC_ISR;
AT91C_BASE_LCDC-> LCDC_ICR = status;
if ((status & AT91C_LCDC_EOFI) != 0)
{
unsigned long Addr, BufferSize;
if (_PendingBuffer >= 0)
{
//
// Calculate address of the given buffer
//
BufferSize = (BOARD_LCD_FRAMESIZE_PIXELS) / 8;
Addr = (unsigned long)lcd_buf + BufferSize * _PendingBuffer;
//
// Make the given buffer visible
//
LCD_BOARD_SetFrameBufferAddress((void *)Addr);
//
// Send a confirmation that the buffer is visible now
//
GUI_MULTIBUF_Confirm(_PendingBuffer);
_PendingBuffer = -1;
}
}
}
/* VSYNC interrupt handler. Will send confirmation to emWin that frame buffer
* addres is changed. Frame buffer address is automatically reloaded during VSYNC.
*/
void EBI_IRQHandler(void) {
uint32_t flags;
flags = EBI_IntGet();
EBI_IntClear(flags);
if ( flags & EBI_IF_VFPORCH ) {
if ( pendingFrameIndex >= 0 ) {
/* Send a confirmation that the buffer is visible now */
GUI_MULTIBUF_Confirm(pendingFrameIndex);
pendingFrameIndex = -1;
}
}
}
/* VSYNC interrupt handler. This performs the actual flipping
* of the buffers.
*/
void EBI_IRQHandler(void) {
uint32_t flags;
flags = EBI_IntGet();
EBI_IntClear(flags);
if ( flags & EBI_IF_VSYNC ) {
if ( pendingFrameIndex >= 0 ) {
/* Set Direct Drive frame buffer address to the new frame */
EBI_TFTFrameBaseSet(FRAME_BUFFER_SIZE * pendingFrameIndex);
/* Send a confirmation to emWin that the old back buffer is visible now */
GUI_MULTIBUF_Confirm(pendingFrameIndex);
/* Reset the pending flag */
pendingFrameIndex = -1;
}
}
}
