From fa8c3541a4bc29307bb85f22a9883d36563424d4 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 30 May 2012 03:44:36 +0000
Subject: added distclean target added simple led usb example

git-svn-id: https://svn.spreadspace.org/avr/trunk@47 aa12f405-d877-488e-9caf-2d797e2a1cc7
---
 usb-led/usb-led.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 usb-led/usb-led.c

(limited to 'usb-led/usb-led.c')

diff --git a/usb-led/usb-led.c b/usb-led/usb-led.c
new file mode 100644
index 0000000..b58a180
--- /dev/null
+++ b/usb-led/usb-led.c
@@ -0,0 +1,121 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2012 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of spreadspace avr utils.
+ *
+ *  spreadspace avr utils is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  any later version.
+ *
+ *  spreadspace avr utils is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+/* this is based on the LUFA example Project USBtoSerial
+   this is their Copyright Header */
+
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+
+#include "lufa-descriptor-usbserial.h"
+
+#include "util.h"
+#include "led.h"
+
+#include <LUFA/Drivers/USB/USB.h>
+
+    /* Function Prototypes: */
+void handle_cmd(uint8_t cmd);
+void EVENT_USB_Device_ConfigurationChanged(void);
+void EVENT_USB_Device_ControlRequest(void);
+
+/** LUFA CDC Class driver interface configuration and state information. This structure is
+ *  passed to all CDC Class driver functions, so that multiple instances of the same class
+ *  within a device can be differentiated from one another.
+ */
+USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
+  {
+    .Config =
+      {
+        .ControlInterfaceNumber         = 0,
+
+        .DataINEndpointNumber           = CDC_TX_EPNUM,
+        .DataINEndpointSize             = CDC_TXRX_EPSIZE,
+        .DataINEndpointDoubleBank       = false,
+
+        .DataOUTEndpointNumber          = CDC_RX_EPNUM,
+        .DataOUTEndpointSize            = CDC_TXRX_EPSIZE,
+        .DataOUTEndpointDoubleBank      = false,
+
+        .NotificationEndpointNumber     = CDC_NOTIFICATION_EPNUM,
+        .NotificationEndpointSize       = CDC_NOTIFICATION_EPSIZE,
+        .NotificationEndpointDoubleBank = false,
+      },
+  };
+
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  led_init();
+  USB_Init();
+  sei();
+
+  for(;;) {
+    int16_t BytesReceived = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface);
+    while(BytesReceived > 0) {
+      int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
+      if(!(ReceivedByte < 0)) {
+        handle_cmd(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
+    USB_USBTask();
+  }
+}
+
+void handle_cmd(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_off(); break;
+  case '1': led_on(); break;
+  case 't': led_toggle(); break;
+  default: CDC_Device_SendString(&VirtualSerial_CDC_Interface, "error\n"); return;
+  }
+  CDC_Device_SendString(&VirtualSerial_CDC_Interface, "ok\n");
+}
+
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+  CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
+}
+
+void EVENT_USB_Device_ControlRequest(void)
+{
+  CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
+}
-- 
cgit v1.2.3