From 1434e289b2b1d98e66ef2c27bdf3dce54a564186 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sat, 16 Feb 2013 22:33:15 +0000
Subject: added keyboard mouse example

git-svn-id: https://svn.spreadspace.org/avr/trunk@195 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-keyboardmouse/Makefile            |  2 +-
 usb-keyboardmouse/usb-keyboardmouse.c | 75 +++++++++++++++++++++++++++--------
 2 files changed, 60 insertions(+), 17 deletions(-)

diff --git a/usb-keyboardmouse/Makefile b/usb-keyboardmouse/Makefile
index 5e20ae0..af93709 100644
--- a/usb-keyboardmouse/Makefile
+++ b/usb-keyboardmouse/Makefile
@@ -36,6 +36,6 @@ LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENAB
 LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\""
 LUFA_OPTS += -D USB_PRODUCT="L\"$(NAME)\""
 
-LUFA_COMPONENTS := USB USBCLASS
+LUFA_COMPONENTS := USB USBCLASS SERIAL
 
 include ../include.mk
diff --git a/usb-keyboardmouse/usb-keyboardmouse.c b/usb-keyboardmouse/usb-keyboardmouse.c
index de796f5..649cb65 100644
--- a/usb-keyboardmouse/usb-keyboardmouse.c
+++ b/usb-keyboardmouse/usb-keyboardmouse.c
@@ -25,6 +25,7 @@
 #include <avr/wdt.h>
 #include <avr/interrupt.h>
 #include <avr/power.h>
+#include <stdio.h>
 
 #include "util.h"
 #include "led.h"
@@ -37,6 +38,8 @@
            www.lufa-lib.org
 */
 #include <LUFA/Drivers/USB/USB.h>
+#include "LUFA/Drivers/Peripheral/Serial.h"
+#include <LUFA/Drivers/Misc/RingBuffer.h>
 #include "lufa-descriptor-keyboardmouse.h"
 
 static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
@@ -95,6 +98,11 @@ void EVENT_USB_Device_StartOfFrame(void)
 }
 /* end LUFA CDC-ACM specific definitions*/
 
+FILE serial_stream;
+static RingBuffer_t keyboard_buffer;
+static uint8_t keyboard_buffer_data[16];
+static RingBuffer_t mouse_buffer;
+static uint8_t mouse_buffer_data[16];
 
 bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
                                          uint8_t* const ReportID,
@@ -102,19 +110,26 @@ bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDIn
                                          void* ReportData,
                                          uint16_t* const ReportSize)
 {
+
 	if (HIDInterfaceInfo == &Keyboard_HID_Interface) {
 		USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 
-		/* no key has been pressed - just return */
-    return 0;
-
-/*    
-		KeyboardReport->Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
-    KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_A;
+    if(!RingBuffer_IsEmpty(&keyboard_buffer)) {
+      uint8_t received_byte = RingBuffer_Remove(&keyboard_buffer);
+      switch(received_byte) {
+      case '1': KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_1_AND_EXCLAMATION; break;
+      case '2': KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_2_AND_AT; break;
+      case '3': KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_3_AND_HASHMARK; break;
+      case '4': KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_4_AND_DOLLAR; break;
+      case 'c': KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_CAPS_LOCK; break;
+      default: return 0; // no key has been pressed - just return 
+      }
+    }
+//    KeyboardReport->Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
     
 		*ReportSize = sizeof(USB_KeyboardReport_Data_t);
 		return false;
-*/
+
 	}
 	else
 	{
@@ -122,15 +137,17 @@ bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDIn
 
     MouseReport->Y = 0;
     MouseReport->X = 0;
-/*
-    MouseReport->Y = -1; // UP
-    MouseReport->Y =  1; // DOWN
-    MouseReport->X = -1; // LEFT
-    MouseReport->X =  1; // RIGHT
-*/
-/*
-    MouseReport->Button |= (1 << 0); // Button 1
-*/
+    if(!RingBuffer_IsEmpty(&mouse_buffer)) {
+      uint8_t received_byte = RingBuffer_Remove(&mouse_buffer);
+      switch(received_byte) {
+      case 'w': MouseReport->Y = -1; break; // UP
+      case 's': MouseReport->Y =  1; break; // DOWN
+      case 'a': MouseReport->X = -1; break; // LEFT
+      case 'd': MouseReport->X =  1; break; // RIGHT
+      case 'q': MouseReport->Button |= (1 << 0); break; // Button 1
+      case 'e': MouseReport->Button |= (1 << 1); break; // Button 2
+      }
+    }
 		*ReportSize = sizeof(USB_MouseReport_Data_t);
 		return true;
 	}
@@ -167,9 +184,35 @@ int main(void)
   cpu_init();
   led_init();
   USB_Init();
+
+  Serial_Init(115200, false);
+  Serial_CreateStream(&serial_stream);
+  stdin = stdout = stderr = &serial_stream;
+  RingBuffer_InitBuffer(&keyboard_buffer, keyboard_buffer_data, sizeof(keyboard_buffer_data));
+  RingBuffer_InitBuffer(&mouse_buffer, mouse_buffer_data, sizeof(mouse_buffer_data));
+
   sei();
 
   for(;;) {
+    if(Serial_IsCharReceived()) {
+      int received_byte = fgetc(stdin);
+      switch(received_byte) {
+      case '1':
+      case '2':
+      case '3':
+      case '4':
+      case 'c':
+        RingBuffer_Insert(&keyboard_buffer, (uint8_t)received_byte); break;
+      case 'w':
+      case 's':
+      case 'a':
+      case 'd':
+      case 'q':
+      case 'e': 
+        RingBuffer_Insert(&mouse_buffer, (uint8_t)received_byte); break;
+      }
+    }
+
 		HID_Device_USBTask(&Keyboard_HID_Interface);
 		HID_Device_USBTask(&Mouse_HID_Interface);
     USB_USBTask();
-- 
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