int buttonsUpdate(const Event** eventTriggered)
{
int result = EVENT_NONE;
uint32_t buttonChange = buttonsState ^ buttonsNewState;
if (buttonChange) {
debugSetOverlayHex(0, buttonsNewState);
uint32_t buttonsNewOn = buttonsNewState & buttonChange;
if (buttonsNewOn) {
for (size_t i = 0; i < activeMappingCount; i++) {
if (activeMapping[i].buttonMask == buttonsNewOn && activeMapping[i].eventOffset) {
*eventTriggered = (const Event*) GET_FLASH_PTR(activeMapping[i].eventOffset);
result = (*eventTriggered)->type;
break;
}
}
}
buttonsState = buttonsNewState;
}
return result;
}
/** Main routine for d12, poll interrupts and check suspend state.
**/
void d12_main(void) {
while (d12_is_irq()) {
uint8_t irq[2];
d12_read_cmd(D12_CMD_READ_INT_REG, irq, 2);
uint8_t i;
for (i = 0; i < sizeof(event_list) / sizeof(usb_event_list_t); i++) {
const usb_event_list_t *event = event_list + i;
if (irq[0] & GET_FLASH(&(event->mask))) {
void (*function)(uint8_t);
function = GET_FLASH_PTR(&(event->function));
function(GET_FLASH(&(event->param)));
}
}
}
// d12_suspend_handler();
}
/** Answer a GET_DESCRIPTOR request on ep0.
**/
void d12_get_descriptor(usb_setup_request_t *setup_pkt) {
tx_ptr = NULL;
tx_bytes = 0;
d12_flags &= ~D12_FLAG_FLASH;
uint8_t value = setup_pkt->wValue >> 8;
switch (value) {
case USB_DESCRIPTOR_DEVICE:
tx_ptr = (uint8_t *)&usb_device_descriptor;
tx_bytes = sizeof(usb_device_descriptor);
d12_flags |= D12_FLAG_FLASH;
break;
case USB_DESCRIPTOR_CONFIGURATION:
tx_ptr = (uint8_t *)&usb_configuration_descriptor;
tx_bytes = sizeof(usb_configuration_descriptor);
d12_flags |= D12_FLAG_FLASH;
break;
case USB_DESCRIPTOR_STRING:
{
uint8_t i;
for (i = 0; i < sizeof(usb_string_list) / sizeof(usb_string_list_t); i++) {
const usb_string_list_t *list = usb_string_list + i;
if (pgm_read_byte(&list->index) == (setup_pkt->wValue & 0xFF)) {
tx_ptr = GET_FLASH_PTR(&list->str);
tx_bytes = pgm_read_byte(&list->size);
d12_flags |= D12_FLAG_FLASH;
}
}
break;
}
}
if (tx_bytes) {
if (tx_bytes > setup_pkt->wLength)
tx_bytes = setup_pkt->wLength;
d12_write_ep0_buf();
} else {
d12_stall_ep0();
}
}
