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authorDean Camera <dean@fourwalledcubicle.com>2009-06-05 07:16:33 +0000
committerDean Camera <dean@fourwalledcubicle.com>2009-06-05 07:16:33 +0000
commitb9b03aadb219d06fbad9d110e508db93e45461af (patch)
tree95a91a07c07953009e71613b320c20d1954be3fc /Demos/Device/ClassDriver/Joystick/Joystick.c
parent6a7c298c0f7119e44e18de15d714cd8b938e3bef (diff)
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Move new Class Driver powered demos to a new ClassDriver subdirectory, re-add old low level demos to a LowLevel subdirectory.
Diffstat (limited to 'Demos/Device/ClassDriver/Joystick/Joystick.c')
-rw-r--r--Demos/Device/ClassDriver/Joystick/Joystick.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/Joystick/Joystick.c b/Demos/Device/ClassDriver/Joystick/Joystick.c
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+++ b/Demos/Device/ClassDriver/Joystick/Joystick.c
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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, provided that the above copyright notice appear in all
+ copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ 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,
+
+ .ReportINEndpointNumber = JOYSTICK_EPNUM,
+ .ReportINEndpointSize = JOYSTICK_EPSIZE,
+
+ .ReportINBufferSize = sizeof(USB_JoystickReport_Data_t),
+
+ .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();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+
+ for (;;)
+ {
+ USB_HID_USBTask(&Joystick_HID_Interface);
+ USB_USBTask();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+
+ /* Hardware Initialization */
+ Joystick_Init();
+ LEDs_Init();
+ Buttons_Init();
+ USB_Init();
+
+ /* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */
+ OCR0A = ((F_CPU / 64) / 1000);
+ TCCR0A = (1 << WGM01);
+ TCCR0B = ((1 << CS01) | (1 << CS00));
+ 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);
+
+ if (!(USB_HID_ConfigureEndpoints(&Joystick_HID_Interface)))
+ 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, uint8_t* ReportID, void* ReportData)
+{
+ USB_JoystickReport_Data_t* JoystickReport = (USB_JoystickReport_Data_t*)ReportData;
+
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+ uint8_t ButtonStatus_LCL = Buttons_GetStatus();
+
+ if (JoyStatus_LCL & JOY_UP)
+ JoystickReport->Y = -100;
+ else if (JoyStatus_LCL & JOY_DOWN)
+ JoystickReport->Y = 100;
+
+ if (JoyStatus_LCL & JOY_RIGHT)
+ JoystickReport->X = 100;
+ else if (JoyStatus_LCL & JOY_LEFT)
+ JoystickReport->X = -100;
+
+ if (JoyStatus_LCL & JOY_PRESS)
+ JoystickReport->Button = (1 << 1);
+
+ if (ButtonStatus_LCL & BUTTONS_BUTTON1)
+ JoystickReport->Button |= (1 << 0);
+
+ 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, uint8_t ReportID,
+ void* ReportData, uint16_t ReportSize)
+{
+ // Unused (but mandatory for the HID class driver) in this demo, since there are no Host->Device reports
+}