diff options
Diffstat (limited to 'Demos/Device/Joystick/Joystick.c')
| -rw-r--r-- | Demos/Device/Joystick/Joystick.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Demos/Device/Joystick/Joystick.c b/Demos/Device/Joystick/Joystick.c index d5c20737d..66cb808d0 100644 --- a/Demos/Device/Joystick/Joystick.c +++ b/Demos/Device/Joystick/Joystick.c @@ -28,8 +28,18 @@ this software.
*/
+/** \file
+ *
+ * Main source file for the Joystick demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
#include "Joystick.h"
+/** LUFA HID Class driver interface configuration and state information. This structure is
+ * passed to all HID Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
USB_ClassInfo_HID_t Joystick_HID_Interface =
{
.InterfaceNumber = 0,
@@ -42,6 +52,9 @@ USB_ClassInfo_HID_t Joystick_HID_Interface = .UsingReportProtocol = true,
};
+/** Main program entry point. This routine contains the overall program flow, including initial
+ * setup of all components and the main program loop.
+ */
int main(void)
{
SetupHardware();
@@ -55,6 +68,7 @@ int main(void) }
}
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
void SetupHardware(void)
{
/* Disable watchdog if enabled by bootloader/fuses */
@@ -77,16 +91,19 @@ void SetupHardware(void) TIMSK0 = (1 << OCIE0A);
}
+/** Event handler for the library USB Connection event. */
void EVENT_USB_Connect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
}
+/** Event handler for the library USB Disconnection event. */
void EVENT_USB_Disconnect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
}
+/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_ConfigurationChanged(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_READY);
@@ -95,17 +112,26 @@ void EVENT_USB_ConfigurationChanged(void) LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
+/** Event handler for the library USB Unhandled Control Packet event. */
void EVENT_USB_UnhandledControlPacket(void)
{
USB_HID_ProcessControlPacket(&Joystick_HID_Interface);
}
+/** ISR to keep track of each millisecond interrupt, for determining the HID class idle period remaining when set. */
ISR(TIMER0_COMPA_vect, ISR_BLOCK)
{
if (Joystick_HID_Interface.IdleMSRemaining)
Joystick_HID_Interface.IdleMSRemaining--;
}
+/** HID class driver callback function for the creation of HID reports to the host.
+ *
+ * \param HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
+ * \param ReportData Pointer to a buffer where the created report should be stored
+ *
+ * \return Number of bytes written in the report (or zero if no report is to be sent
+ */
uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData)
{
USB_JoystickReport_Data_t* JoystickReport = (USB_JoystickReport_Data_t*)ReportData;
@@ -132,6 +158,12 @@ uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceI return sizeof(USB_JoystickReport_Data_t);
}
+/** HID class driver callback function for the processing of HID reports from the host.
+ *
+ * \param HIDInterfaceInfo Pointer to the HID class interface configuration structure being referenced
+ * \param ReportData Pointer to a buffer where the created report has been stored
+ * \param ReportSize Size in bytes of the received HID report
+ */
void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData, uint16_t ReportSize)
{
// Unused (but mandatory for the HID class driver) in this demo, since there are no Host->Device reports
|