1 files changed, 94 insertions, 0 deletions
diff --git a/usb-dual-led/usb-dual-led.c b/usb-dual-led/usb-dual-led.c
new file mode 100644
index 0000000..139e841
--- /dev/null
+++ b/usb-dual-led/usb-dual-led.c
@@ -0,0 +1,94 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 2013-2015 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"
+
+uint8_t stdio_port = 0;
+
+void handle_cmd(uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_off(); break;
+  case '1': led_on(); break;
+  case 't': led_toggle(); break;
+  case 's': printf("std: already stdio\r\n"); return;
+  default: printf("std: error\r\n"); return;
+  }
+  printf("std: ok\r\n");
+}
+
+void handle_cmd2(uint8_t p, uint8_t cmd)
+{
+  switch(cmd) {
+  case '0': led_on(); break;
+  case '1': led_off(); break;
+  case 't': led_toggle(); break;
+  case 's': stdio_port = p; dualusbio_make_stdio(stdio_port); break;
+  default: fprintf(usbio[p], "%d: error\r\n", p); return;
+  }
+  fprintf(usbio[p], "%d: ok\r\n", p);
+}
+
+int main(void)
+{
+  MCUSR &= ~(1 << WDRF);
+  wdt_disable();
+
+  cpu_init();
+  led_init();
+  dualusbio_init();
+  sei();
+
+  dualusbio_make_stdio(stdio_port);
+
+  for(;;) {
+    int16_t BytesReceived = dualusbio_bytes_received_std();
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(stdin);
+      if(ReceivedByte != EOF) {
+        handle_cmd(ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    uint8_t p = (stdio_port) ? 0 : 1;
+    BytesReceived = dualusbio_bytes_received(p);
+    while(BytesReceived > 0) {
+      int ReceivedByte = fgetc(usbio[p]);
+      if(ReceivedByte != EOF) {
+        handle_cmd2(p, ReceivedByte);
+      }
+      BytesReceived--;
+    }
+
+    dualusbio_task();
+  }
+}