/** \brief Processes USB keyboard events.
*
*/
void usbHidProcessKeyboard(uint8_t *pRfData)
{
extern void halMcuWaitMs(uint16_t msec);
uint8_t i;
//
// Copy data from RX buffer
//
keyboard.modifiers = pRfData[1];
keyboard.reserved = pRfData[2];
for(i = 0; i < sizeof(keyboard.pKeyCodes); i++)
{
keyboard.pKeyCodes[i] = pRfData[i + 3];
}
//
// Update and send the received HID keyboard report if USB endpoint is ready
//
hidUpdateKeyboardInReport(&keyboard);
if(hidSendKeyboardInReport())
{
//
// For each successfully sent keyboard report, also clear the HID
// keyboard report and send a blank report
//
keyboard.modifiers = 0;
keyboard.reserved = 0;
for(i = 0; i < sizeof(keyboard.pKeyCodes); i++)
{
keyboard.pKeyCodes[i] = 0;
}
hidUpdateKeyboardInReport(&keyboard);
hidSendKeyboardInReport();
}
}
//
// Application entry point
//
int main(void)
{
KEYBOARD_IN_REPORT keybReport;
uint8_t keybReportSendReq = false;
uint8_t currKey = 0x00;
//
// Initialize board and system clock
//
bspInit(SYS_CTRL_32MHZ);
//
// Enable the USB interface
//
usbHidInit();
//
// Initialize GPIO pins for keyboard LEDs (LED 1 on PC0 is used by USB to
// control D+ pull-up)
//
GPIOPinTypeGPIOOutput(BSP_LED_BASE, BSP_LED_2 | BSP_LED_3 | BSP_LED_4);
//
// Configure interrupt with wakeup for all buttons
//
IntRegister(INT_GPIOA, selKeyRemoteWakeupIsr);
GPIOPowIntTypeSet(BSP_KEY_SEL_BASE, BSP_KEY_SELECT, GPIO_POW_RISING_EDGE);
IntRegister(INT_GPIOC, dirKeyRemoteWakeupIsr);
GPIOPowIntTypeSet(BSP_KEY_DIR_BASE, BSP_KEY_DIR_ALL, GPIO_POW_RISING_EDGE);
//
// Initialize button polling for keyboard HID reports
//
memset(&keybReport, 0x00, sizeof(KEYBOARD_IN_REPORT));
//
// Main loop
//
while (1)
{
//
// Process USB events
//
usbHidProcessEvents();
//
// Generate keyboard input
//
if (!keybReportSendReq)
{
switch (bspKeyPushed(BSP_KEY_ALL))
{
case BSP_KEY_LEFT:
currKey = 0x50;
break;
case BSP_KEY_RIGHT:
currKey = 0x4F;
break;
case BSP_KEY_UP:
currKey = 0x52;
break;
case BSP_KEY_DOWN:
currKey = 0x51;
break;
case BSP_KEY_SELECT:
currKey = 0x28;
break;
default:
currKey = 0x00;
break;
}
if (currKey != keybReport.pKeyCodes[0])
{
keybReport.pKeyCodes[0] = currKey;
hidUpdateKeyboardInReport(&keybReport);
keybReportSendReq = true;
}
}
if (keybReportSendReq)
{
if (hidSendKeyboardInReport())
{
keybReportSendReq = false;
}
}
}
}
