bool cmd_if_init(void) {
/* Initialize local variables. */
ndr = NULL;
ieee_address = eep_read_ieee_address();
nwk_events_missed = 0;
for (uint8_t i = 0; (i < NWK_EVENT_FIFO_SIZE); i++) {
uint8_t *nwk_event = (uint8_t *)MEM_ALLOC_ARRAY(uint8_t, CMD_EVENT_SIZE);
if (NULL == nwk_event) {
goto init_failed;
} else {
nwk_event_fifo[i] = nwk_event;
}
}
/* Initialize USB devic driver. */
usb_task_init(ieee_address);
/* Set up the transaction descriptor for the OUT end point where commands will
* be received.
*/
usb_trans_descriptor_t desc;
desc.ep = EP_OUT;
desc.done_callback = usb_transaction_done;
if (USB_SUCCESS != usb_ep_open(&desc)) {
goto init_failed;
}
cmd_if_state = CMD_IF_INITIALIZED;
return true;
/* Handle failed initialization. */
init_failed:
for (uint8_t i = 0; (i < NWK_EVENT_FIFO_SIZE); i++) {
MEM_FREE(nwk_event_fifo[i]);
nwk_event_fifo[i] = (uint8_t *)NULL;
}
/* Close EP and turn the USB macro off. */
usb_ep_close();
usb_task_deinit();
return false;
}
void Slideshow( void )
{
LCD_SetScreen( 0x00 );
FIFO_data_t * fifoBuffer = MEM_ALLOC_ARRAY( Slideshow_event_t, SLIDESHOW_MAXEVENTS );
if (fifoBuffer == NULL) {
POPUP_MsgBox( 10, 2, 6, "Not enough\r\nmemory!", NULL );
} else {
TIMING_event_t timerEvent;
FIFO_handle_t fifo;
// Init FIFO.
Slideshow_eventFifo = &fifo;
FIFO_Init( &fifo, fifoBuffer, SLIDESHOW_MAXEVENTS );
// Init slideshow data and state.
static uint8_t const CAL_PGM_DEF(* const pictures[SLIDESHOW_MAXPICS]) = {
FLASHPICS_ECARS_DEMO_0,
FLASHPICS_ECARS_DEMO_1,
FLASHPICS_ECARS_DEMO_2,
FLASHPICS_ECARS_DEMO_3,
FLASHPICS_ECARS_DEMO_4,
FLASHPICS_ECARS_DEMO_5,
FLASHPICS_ECARS_DEMO_6,
FLASHPICS_ECARS_DEMO_7,
FLASHPICS_ECARS_DEMO_8,
FLASHPICS_ECARS_DEMO_9
};
int8_t picIdx = 0;
int8_t direction = 1;
// Install joystick handler.
CAL_disable_interrupt();
JOYSTICK_EventHandler_t oldHandler = JOYSTICK_GetEventHandler();
JOYSTICK_SetEventHandler( Slideshow_JoystickCallback );
CAL_enable_interrupt();
// Run main slideshow loop.
bool exit = false;
do {
// Show current picture.
PICTURE_CopyFullscreenFlashToLcd( CAL_pgm_read_puint8(&pictures[picIdx]) );
// Register timer event.
TIMING_RemoveEvent( &timerEvent );
TIMING_AddCallbackEventAfter( RTC_TICKS_PER_SECOND * SLIDESHOW_DELAYSECONDS,
Slideshow_TimerCallback,
&timerEvent );
// Wait for event from timer or joystick.
Slideshow_event_t event;
while (FIFO_HasData( &fifo, Slideshow_event_t ) == false) {
POWER_EnterIdleSleepMode();
}
FIFO_GetData( &fifo, &event );
// Process event.
switch (event) {
case SLIDESHOW_EXIT : exit = true; break;
case SLIDESHOW_TIMER :
Slideshow_UpdateIndex( &picIdx, direction );
break;
case SLIDESHOW_NEXT :
direction = 1;
Slideshow_UpdateIndex( &picIdx, direction );
break;
case SLIDESHOW_PREV :
direction = -1;
Slideshow_UpdateIndex( &picIdx, direction );
break;
default : break;
}
} while (exit == false);
// Clean up.
CAL_disable_interrupt();
TIMING_RemoveEvent( &timerEvent );
JOYSTICK_SetEventHandler( oldHandler );
CAL_enable_interrupt();
MEM_FREE( fifoBuffer );
}
}