From e8c5fbe15f12caa15a6a3f37884129df4ef0ddad Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Mon, 22 Jun 2015 00:18:41 +0200
Subject: added dualusbio lib and example for it (not fully working yet..)

---
 usb-led2/usb-led2.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 usb-led2/usb-led2.c

(limited to 'usb-led2/usb-led2.c')

diff --git a/usb-led2/usb-led2.c b/usb-led2/usb-led2.c
new file mode 100644
index 0000000..345f076
--- /dev/null
+++ b/usb-led2/usb-led2.c
@@ -0,0 +1,87 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2014 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/>.
+ */
+
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <avr/power.h>
+#include <stdio.h>
+
+#include "util.h"
+#include "led.h"
+#include "dualusbio.h"
+
+void handle_cmd1(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_off(); break;
+  case '1': led_on(); break;
+  case 't': led_toggle(); break;
+  default: fprintf(&usbio_port1, "1: error\r\n"); return;
+  }
+  fprintf(&usbio_port1, "1: ok\r\n");
+}
+
+void handle_cmd2(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_on(); break;
+  case '1': led_off(); break;
+  case 't': led_toggle(); break;
+  default: fprintf(&usbio_port2, "2: error\r\n"); return;
+  }
+  fprintf(&usbio_port2, "2: ok\r\n");
+}
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  led_init();
+  dualusbio_init();
+  sei();
+
+  for(;;) {
+    int16_t BytesReceived = dualusbio_bytes_received(1);
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(&usbio_port1);
+      if(ReceivedByte != EOF) {
+        handle_cmd1(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    BytesReceived = dualusbio_bytes_received(2);
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(&usbio_port2);
+      if(ReceivedByte != EOF) {
+        handle_cmd2(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    dualusbio_task();
+  }
+}
-- 
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