//*****************************************************************************
//
//! Initializes HID keyboard device operation for a given USB controller.
//!
//! \param ui32Index is the index of the USB controller which is to be
//! initialized for HID keyboard device operation.
//! \param psHIDKbDevice points to a structure containing parameters
//! customizing the operation of the HID keyboard device.
//!
//! An application wishing to offer a USB HID keyboard interface to a USB host
//! must call this function to initialize the USB controller and attach the
//! keyboard device to the USB bus. This function performs all required USB
//! initialization.
//!
//! On successful completion, this function will return the \e psHIDKbDevice
//! pointer passed to it. This must be passed on all future calls to the HID
//! keyboard device driver.
//!
//! When a host connects and configures the device, the application callback
//! will receive \b USB_EVENT_CONNECTED after which calls can be made to
//! USBDHIDKeyboardKeyStateChange() to report key presses and releases to the
//! USB host.
//!
//! \note The application must not make any calls to the lower level USB device
//! interfaces if interacting with USB via the USB HID keyboard device class
//! API. Doing so will cause unpredictable (though almost certainly
//! unpleasant) behavior.
//!
//! \return Returns NULL on failure or the psHIDKbDevice pointer on success.
//
//*****************************************************************************
void *
USBDHIDKeyboardInit(uint32_t ui32Index, tUSBDHIDKeyboardDevice *psHIDKbDevice)
{
void *pvRetcode;
tUSBDHIDDevice *psHIDDevice;
tConfigDescriptor *pConfigDesc;
//
// Check parameter validity.
//
ASSERT(psHIDKbDevice);
ASSERT(psHIDKbDevice->ppui8StringDescriptors);
ASSERT(psHIDKbDevice->pfnCallback);
//
// Get a pointer to the HID device data.
//
psHIDDevice = &psHIDKbDevice->sPrivateData.sHIDDevice;
//
// Call the common initialization routine.
//
pvRetcode = USBDHIDKeyboardCompositeInit(ui32Index, psHIDKbDevice, 0);
pConfigDesc = (tConfigDescriptor *)g_pui8KeybDescriptor;
pConfigDesc->bmAttributes = psHIDKbDevice->ui8PwrAttributes;
pConfigDesc->bMaxPower = (uint8_t)(psHIDKbDevice->ui16MaxPowermA / 2);
//
// If we initialized the HID layer successfully, pass our device pointer
// back as the return code, otherwise return NULL to indicate an error.
//
if(pvRetcode)
{
//
// Initialize the lower layer HID driver and pass it the various
// structures and descriptors necessary to declare that we are a
// keyboard.
//
pvRetcode = USBDHIDInit(ui32Index, psHIDDevice);
return((void *)psHIDKbDevice);
}
else
{
return((void *)0);
}
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
//
// Turn on stacking of FPU registers if FPU is used in the ISR.
//
FPULazyStackingEnable();
//
// Set the clocking to run from the PLL at 40MHz.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Set the system tick to fire 100 times per second.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// Enable the Debug UART.
//
ConfigureUART();
//
// Print the welcome message to the terminal.
//
UARTprintf("\033[2JAir Mouse Application\n");
//
// Configure desired interrupt priorities. This makes certain that the DCM
// is fed data at a consistent rate. Lower numbers equal higher priority.
//
ROM_IntPrioritySet(INT_I2C3, 0x00);
ROM_IntPrioritySet(INT_GPIOB, 0x10);
ROM_IntPrioritySet(FAULT_SYSTICK, 0x20);
ROM_IntPrioritySet(INT_UART1, 0x60);
ROM_IntPrioritySet(INT_UART0, 0x70);
ROM_IntPrioritySet(INT_WTIMER5B, 0x80);
//
// Configure the USB D+ and D- pins.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTD_BASE, GPIO_PIN_5 | GPIO_PIN_4);
//
// Pass the USB library our device information, initialize the USB
// controller and connect the device to the bus.
//
USBDHIDMouseCompositeInit(0, &g_sMouseDevice, &g_psCompDevices[0]);
USBDHIDKeyboardCompositeInit(0, &g_sKeyboardDevice, &g_psCompDevices[1]);
//
// Set the USB stack mode to Force Device mode.
//
USBStackModeSet(0, eUSBModeForceDevice, 0);
//
// Pass the device information to the USB library and place the device
// on the bus.
//
USBDCompositeInit(0, &g_sCompDevice, DESCRIPTOR_DATA_SIZE,
g_pui8DescriptorData);
//
// User Interface Init
//
ButtonsInit();
RGBInit(0);
RGBEnable();
//
// Initialize the motion sub system.
//
MotionInit();
//
// Initialize the Radio Systems.
//
LPRFInit();
//
// Drop into the main loop.
//
while(1)
{
//
// Check for and handle timer tick events.
//
if(HWREGBITW(&g_ui32Events, USB_TICK_EVENT) == 1)
{
//
// Clear the Tick event flag. Set in SysTick interrupt handler.
//
HWREGBITW(&g_ui32Events, USB_TICK_EVENT) = 0;
//
// Each tick period handle wired mouse and keyboard.
//
if(HWREGBITW(&g_ui32USBFlags, FLAG_CONNECTED) == 1)
{
MouseMoveHandler();
KeyboardMain();
}
}
//
// Check for LPRF tick events. LPRF Ticks are slower since UART to
// RNP is much slower data connection than the USB.
//
if(HWREGBITW(&g_ui32Events, LPRF_TICK_EVENT) == 1)
{
//
// Clear the event flag.
//
HWREGBITW(&g_ui32Events, LPRF_TICK_EVENT) = 0;
//
// Perform the LPRF Main task handling
//
LPRFMain();
}
//
// Check for and handle motion events.
//
if((HWREGBITW(&g_ui32Events, MOTION_EVENT) == 1) ||
(HWREGBITW(&g_ui32Events, MOTION_ERROR_EVENT) == 1))
{
//
// Clear the motion event flag. Set in the Motion I2C interrupt
// handler when an I2C transaction to get sensor data is complete.
//
HWREGBITW(&g_ui32Events, MOTION_EVENT) = 0;
//
// Process the motion data that has been captured
//
MotionMain();
}
}
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
uint32_t ui32SysClock;
//
// Run from the PLL at 120 MHz.
//
ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
SYSCTL_OSC_MAIN | SYSCTL_USE_PLL |
SYSCTL_CFG_VCO_480), 120000000);
//
// Configure the device pins.
//
PinoutSet();
//
// Initialize the display driver.
//
Kentec320x240x16_SSD2119Init(ui32SysClock);
//
// Initialize the touch screen driver.
//
TouchScreenInit(ui32SysClock);
//
// Set the touch screen event handler.
//
TouchScreenCallbackSet(UITouchCallback);
//
// Set the system tick to fire 100 times per second.
//
ROM_SysTickPeriodSet(ui32SysClock / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// Initialize the USB stack for device mode.
//
USBStackModeSet(0, eUSBModeDevice, 0);
//
// Initialize the USB keyboard interface.
//
USBKeyboardInit();
//
// Initialize the USB mouse interface.
//
USBMouseInit();
//
// Call the composite device initialization for both the mouse and
// keyboard.
//
USBDHIDMouseCompositeInit(0, &g_sMouseDevice, &g_psCompDevices[0]);
USBDHIDKeyboardCompositeInit(0, &g_sKeyboardDevice, &g_psCompDevices[1]);
//
// Pass the device information to the USB library and place the device
// on the bus.
//
USBDCompositeInit(0, &g_sCompDevice, DESCRIPTOR_DATA_SIZE,
g_pui8DescriptorData);
//
// Initialize the user interface.
//
UIInit();
while(1) {
//
// Run the main loop for the user interface.
//
UIMain();
}
}
