added serialio library

4 files changed, 175 insertions, 0 deletions

diff --git a/lib/serialio.c b/lib/serialio.c
new file mode 100644
index 0000000..fde2935
--- /dev/null
+++ b/lib/serialio.c
@@ -0,0 +1,44 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 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 <stdio.h>
+
+#include "serialio.h"
+#include "LUFA/Drivers/Peripheral/Serial.h"
+
+static FILE serial_stream;
+
+void serialio_init(const uint32_t baudrate, const uint8_t doublespeed)
+{
+  Serial_Init(baudrate, doublespeed);
+  Serial_CreateStream(&serial_stream);
+  stdin = stdout = stderr = &serial_stream;
+}
+
+void serialio_task(void)
+{
+}
+
+int16_t serialio_bytes_received(void)
+{
+  return (int16_t)Serial_IsCharReceived();
+}
diff --git a/lib/serialio.h b/lib/serialio.h
new file mode 100644
index 0000000..3b0781e
--- /dev/null
+++ b/lib/serialio.h
@@ -0,0 +1,32 @@
+/*
+ *  spreadspace avr utils
+ *
+ *
+ *  Copyright (C) 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/>.
+ */
+
+#ifndef SPREADAVR_serialio_h_INCLUDED
+#define SPREADAVR_serialio_h_INCLUDED
+
+#include <stdint.h>
+
+void serialio_init(const uint32_t baudrate, const uint8_t doublespeed);
+void serialio_task(void);
+int16_t serialio_bytes_received(void);
+
+#endif
diff --git a/serial-led/Makefile b/serial-led/Makefile
new file mode 100644
index 0000000..0ed9dd3
--- /dev/null
+++ b/serial-led/Makefile
@@ -0,0 +1,32 @@
+##

+##  spreadspace avr utils

+##

+##

+##  Copyright (C) 2013 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/>.

+##

+

+NAME := serial-led

+BOARD_TYPE := slowpandongle1

+OBJ := $(NAME).o

+LIBS := util led serialio

+EXTERNAL_LIBS := lufa

+

+LUFA_PATH := ../contrib/LUFA-120219

+LUFA_COMPONENTS := SERIAL

+

+include ../include.mk

diff --git a/serial-led/serial-led.c b/serial-led/serial-led.c
new file mode 100644
index 0000000..d57636e
--- /dev/null
+++ b/serial-led/serial-led.c
@@ -0,0 +1,67 @@
+/*

+ *  spreadspace avr utils

+ *

+ *

+ *  Copyright (C) 2013 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 "serialio.h"

+

+void handle_cmd(uint8_t cmd)

+{

+  switch(cmd) {

+  case '0': led_off(); break;

+  case '1': led_on(); break;

+  case 't': led_toggle(); break;

+  case 'r': reset2bootloader(); break;

+  default: printf("error\r\n"); return;

+  }

+  printf("ok\r\n");

+}

+

+int main(void)

+{

+  MCUSR &= ~(1 << WDRF);

+  wdt_disable();

+

+  cpu_init();

+  led_init();

+  serialio_init(9600, 0);

+  sei();

+

+  for(;;) {

+    int16_t BytesReceived = serialio_bytes_received();

+    while(BytesReceived > 0) {

+      int ReceivedByte = fgetc(stdin);

+      if(ReceivedByte != EOF) {

+        handle_cmd(ReceivedByte);

+      }

+      BytesReceived--;

+    }

+    serialio_task();

+  }

+}