KeyboardMouse.c 7.99 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
30
/*
             LUFA Library
     Copyright (C) Dean Camera, 2009.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  Copyright 2009  Denver Gingerich (denver [at] ossguy [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.
*/
31
32
33
34
35
36
37

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

38
39
#include "KeyboardMouse.h"

40
41
42
43
44
/** 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. This is for the keyboard HID
 *  interface within the device.
 */
45
USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
46
	{
47
48
49
50
51
52
53
54
55
56
57
58
59
60
		.Config =
			{
				.InterfaceNumber         = 0,

				.ReportINEndpointNumber  = KEYBOARD_IN_EPNUM,
				.ReportINEndpointSize    = HID_EPSIZE,
				
				.ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),
			},

		.State =
			{
				.IdleCount               = 500,
			}
61
62
	};
	
63
64
65
66
67
/** 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. This is for the mouse HID
 *  interface within the device.
 */
68
USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
69
	{
70
71
72
73
74
75
76
77
78
79
80
81
82
83
		.Config =
			{
				.InterfaceNumber         = 0,

				.ReportINEndpointNumber  = MOUSE_IN_EPNUM,
				.ReportINEndpointSize    = HID_EPSIZE,

				.ReportINBufferSize      = sizeof(USB_MouseReport_Data_t),
			},
			
		.State =
			{
				// Leave all state values to their defaults
			}			
84
	};
85
86
87
88

/** Main program entry point. This routine contains the overall program flow, including initial
 *  setup of all components and the main program loop.
 */
89
int main(void)
90
91
92
93
94
95
96
{
	SetupHardware();

	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);

	for (;;)
	{
97
98
		HID_Device_USBTask(&Keyboard_HID_Interface);
		HID_Device_USBTask(&Mouse_HID_Interface);
99
100
101
102
		USB_USBTask();
	}
}

103
/** Configures the board hardware and chip peripherals for the demo's functionality. */
104
void SetupHardware()
105
106
107
108
109
{
	/* Disable watchdog if enabled by bootloader/fuses */
	MCUSR &= ~(1 << WDRF);
	wdt_disable();

110
111
	/* Disable clock division */
	clock_prescale_set(clock_div_1);
112
113
114
115

	/* Hardware Initialization */
	Joystick_Init();
	LEDs_Init();
116
117
118
119
120
121
122
	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);
123
124
}

125
/** Event handler for the library USB Connection event. */
126
void EVENT_USB_Connect(void)
127
{
128
    LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
129
130
}

131
/** Event handler for the library USB Disconnection event. */
132
void EVENT_USB_Disconnect(void)
133
{
134
    LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
135
136
}

137
/** Event handler for the library USB Configuration Changed event. */
138
void EVENT_USB_ConfigurationChanged(void)
139
{
140
	LEDs_SetAllLEDs(LEDMASK_USB_READY);
141

142
	if (!(HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface)))
143
144
	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
	
145
	if (!(HID_Device_ConfigureEndpoints(&Mouse_HID_Interface)))
146
	  LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
147
148
}

149
/** Event handler for the library USB Unhandled Control Packet event. */
150
void EVENT_USB_UnhandledControlPacket(void)
151
{
152
153
	HID_Device_ProcessControlPacket(&Keyboard_HID_Interface);
	HID_Device_ProcessControlPacket(&Mouse_HID_Interface);
154
155
}

156
/** ISR to keep track of each millisecond interrupt, for determining the HID class idle period remaining when set. */
157
ISR(TIMER0_COMPA_vect, ISR_BLOCK)
158
{
159
160
	if (Keyboard_HID_Interface.State.IdleMSRemaining)
	  Keyboard_HID_Interface.State.IdleMSRemaining--;
161

162
163
	if (Mouse_HID_Interface.State.IdleMSRemaining)
	  Mouse_HID_Interface.State.IdleMSRemaining--;
164
165
}

166
167
168
/** 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
169
 *  \param ReportID  Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
170
171
172
173
 *  \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
 */
174
uint16_t CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo, uint8_t* ReportID, void* ReportData)
175
{
176
177
	uint8_t JoyStatus_LCL    = Joystick_GetStatus();
	uint8_t ButtonStatus_LCL = Buttons_GetStatus();
178

179
	if (HIDInterfaceInfo == &Keyboard_HID_Interface)
180
	{
181
182
183
184
185
186
		USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
		
		/* If first board button not being held down, no keyboard report */
		if (!(ButtonStatus_LCL & BUTTONS_BUTTON1))
		  return 0;
		
187
		if (JoyStatus_LCL & JOY_UP)
188
		  KeyboardReport->KeyCode[0] = 0x04; // A
189
		else if (JoyStatus_LCL & JOY_DOWN)
190
		  KeyboardReport->KeyCode[0] = 0x05; // B
191
192

		if (JoyStatus_LCL & JOY_LEFT)
193
		  KeyboardReport->KeyCode[0] = 0x06; // C
194
		else if (JoyStatus_LCL & JOY_RIGHT)
195
		  KeyboardReport->KeyCode[0] = 0x07; // D
196
197

		if (JoyStatus_LCL & JOY_PRESS)
198
199
200
		  KeyboardReport->KeyCode[0] = 0x08; // E
		  
		return sizeof(USB_KeyboardReport_Data_t);
201
	}
202
	else
203
	{
204
		USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;
205

206
207
208
209
		/* If first board button being held down, no mouse report */
		if (ButtonStatus_LCL & BUTTONS_BUTTON1)
		  return 0;
		  
210
		if (JoyStatus_LCL & JOY_UP)
211
		  MouseReport->Y = -1;
212
		else if (JoyStatus_LCL & JOY_DOWN)
213
		  MouseReport->Y =  1;
214
215

		if (JoyStatus_LCL & JOY_RIGHT)
216
		  MouseReport->X =  1;
217
		else if (JoyStatus_LCL & JOY_LEFT)
218
		  MouseReport->X = -1;
219
220

		if (JoyStatus_LCL & JOY_PRESS)
221
222
223
		  MouseReport->Button  = (1 << 0);
		
		return sizeof(USB_MouseReport_Data_t);		
224
	}
225
}
226

227
228
229
/** 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
230
 *  \param ReportID  Report ID of the received report from the host
231
232
233
 *  \param ReportData  Pointer to a buffer where the created report has been stored
 *  \param ReportSize  Size in bytes of the received HID report
 */
234
void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo, uint8_t ReportID,
235
                                          void* ReportData, uint16_t ReportSize)
236
237
{
	if (HIDInterfaceInfo == &Keyboard_HID_Interface)
238
	{
239
240
		uint8_t  LEDMask   = LEDS_NO_LEDS;
		uint8_t* LEDReport = (uint8_t*)ReportData;
241

242
243
244
245
246
		if (*LEDReport & 0x01) // NUM Lock
		  LEDMask |= LEDS_LED1;
		
		if (*LEDReport & 0x02) // CAPS Lock
		  LEDMask |= LEDS_LED3;
247

248
249
250
251
		if (*LEDReport & 0x04) // SCROLL Lock
		  LEDMask |= LEDS_LED4;
		  
		LEDs_SetAllLEDs(LEDMask);
252
	}
253
}