Mouse.c 6.25 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
/*
             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.
*/
30
31
32
33
34
35
36

/** \file
 *
 *  Main source file for the Mouse demo. This file contains the main tasks of
 *  the demo and is responsible for the initial application hardware configuration.
 */

37
38
#include "Mouse.h"

39
40
41
/** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */
uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];

42
43
44
45
/** 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.
 */
46
USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
47
	{
48
49
50
51
52
53
		.Config =
			{
				.InterfaceNumber         = 0,

				.ReportINEndpointNumber  = MOUSE_EPNUM,
				.ReportINEndpointSize    = MOUSE_EPSIZE,
54
55
56

				.PrevReportINBuffer      = PrevMouseHIDReportBuffer,
				.PrevReportINBufferSize  = sizeof(PrevMouseHIDReportBuffer),
57
			},
58
	};
59

60
61
62
/** Main program entry point. This routine contains the overall program flow, including initial
 *  setup of all components and the main program loop.
 */
63
64
65
66
67
int main(void)
{	
	SetupHardware();
	
	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
68

69
70
	for (;;)
	{
71
		HID_Device_USBTask(&Mouse_HID_Interface);
72
73
74
		USB_USBTask();
	}
}
75

76
/** Configures the board hardware and chip peripherals for the demo's functionality. */
77
void SetupHardware(void)
78
79
80
81
82
{
	/* Disable watchdog if enabled by bootloader/fuses */
	MCUSR &= ~(1 << WDRF);
	wdt_disable();

83
84
	/* Disable clock division */
	clock_prescale_set(clock_div_1);
85
86
87
88

	/* Hardware Initialization */
	Joystick_Init();
	LEDs_Init();
89
	Buttons_Init();
90
	USB_Init();
91
92
93
94
95
96

	/* 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);
97
98
}

99
100
/** Event handler for the library USB WakeUp event. */
void EVENT_USB_Device_Connect(void)
101
{
102
	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
103
104
}

105
106
/** Event handler for the library USB Suspend event. */
void EVENT_USB_Device_Disconnect(void)
107
{
108
	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
109
110
}

111
/** Event handler for the library USB Configuration Changed event. */
112
void EVENT_USB_Device_ConfigurationChanged(void)
113
{
114
	LEDs_SetAllLEDs(LEDMASK_USB_READY);
115

116
	if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
117
	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
118
119
}

120
/** Event handler for the library USB Unhandled Control Request event. */
121
void EVENT_USB_Device_UnhandledControlRequest(void)
122
{
123
	HID_Device_ProcessControlRequest(&Mouse_HID_Interface);
124
125
}

126
/** ISR to keep track of each millisecond interrupt, for determining the HID class idle period remaining when set. */
127
ISR(TIMER0_COMPA_vect, ISR_BLOCK)
128
{
129
	HID_Device_MillisecondElapsed(&Mouse_HID_Interface);
130
131
}

132
133
/** HID class driver callback function for the creation of HID reports to the host.
 *
134
135
136
 *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 *  \param[in,out] ReportID  Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
 *  \param[out] ReportData  Pointer to a buffer where the created report should be stored
137
 *  \param[out] ReportSize  Number of bytes written in the report (or zero if no report is to be sent
138
 *
139
 *  \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent
140
 */
141
142
bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
                                         void* ReportData, uint16_t* ReportSize)
143
{
144
145
	USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;
		
146
147
	uint8_t JoyStatus_LCL    = Joystick_GetStatus();
	uint8_t ButtonStatus_LCL = Buttons_GetStatus();
148
149

	if (JoyStatus_LCL & JOY_UP)
150
	  MouseReport->Y = -1;
151
	else if (JoyStatus_LCL & JOY_DOWN)
152
	  MouseReport->Y =  1;
153
154

	if (JoyStatus_LCL & JOY_RIGHT)
155
	  MouseReport->X =  1;
156
	else if (JoyStatus_LCL & JOY_LEFT)
157
	  MouseReport->X = -1;
158
159

	if (JoyStatus_LCL & JOY_PRESS)
160
	  MouseReport->Button  = (1 << 0);
161
	  
162
	if (ButtonStatus_LCL & BUTTONS_BUTTON1)
163
	  MouseReport->Button |= (1 << 1);
164
	
165
166
	*ReportSize = sizeof(USB_MouseReport_Data_t);
	return true;
167
168
}

169
170
/** HID class driver callback function for the processing of HID reports from the host.
 *
171
172
173
174
 *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 *  \param[in] ReportID  Report ID of the received report from the host
 *  \param[in] ReportData  Pointer to a buffer where the created report has been stored
 *  \param[in] ReportSize  Size in bytes of the received HID report
175
 */
176
177
void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,
                                          const void* ReportData, const uint16_t ReportSize)
178
{
179
	// Unused (but mandatory for the HID class driver) in this demo, since there are no Host->Device reports
180
}