From 33dfc386c9f9ccf4507125c8109f114a1292c5c9 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Sun, 7 May 2017 14:08:34 -0400
Subject: [PATCH] avr: Merge misc.c into main.c

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 src/avr/Makefile |  2 +-
 src/avr/main.c   | 55 +++++++++++++++++++++++++++++++++++++++++++++++-
 src/avr/misc.c   | 54 -----------------------------------------------
 3 files changed, 55 insertions(+), 56 deletions(-)
 delete mode 100644 src/avr/misc.c

diff --git a/src/avr/Makefile b/src/avr/Makefile
index ee3da1b5..444df365 100644
--- a/src/avr/Makefile
+++ b/src/avr/Makefile
@@ -8,7 +8,7 @@ dirs-y += src/avr lib/pjrc_usb_serial
 CFLAGS-y += -mmcu=$(CONFIG_MCU)
 
 # Add avr source files
-src-y += avr/main.c avr/timer.c avr/gpio.c avr/misc.c
+src-y += avr/main.c avr/timer.c avr/gpio.c
 src-$(CONFIG_AVR_WATCHDOG) += avr/watchdog.c
 src-$(CONFIG_AVR_USBSERIAL) += avr/usbserial.c ../lib/pjrc_usb_serial/usb_serial.c
 src-$(CONFIG_AVR_SERIAL) += avr/serial.c
diff --git a/src/avr/main.c b/src/avr/main.c
index 4a3f871a..a210300f 100644
--- a/src/avr/main.c
+++ b/src/avr/main.c
@@ -1,9 +1,13 @@
 // Main starting point for AVR boards.
 //
-// Copyright (C) 2016  Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2016,2017  Kevin O'Connor <kevin@koconnor.net>
 //
 // This file may be distributed under the terms of the GNU GPLv3 license.
 
+#include <avr/io.h> // AVR_STACK_POINTER_REG
+#include <stdlib.h> // __malloc_heap_end
+#include <string.h> // memset
+#include <util/crc16.h> // _crc_ccitt_update
 #include "autoconf.h" // CONFIG_MCU
 #include "command.h" // DECL_CONSTANT
 #include "irq.h" // irq_enable
@@ -11,6 +15,55 @@
 
 DECL_CONSTANT(MCU, CONFIG_MCU);
 
+
+/****************************************************************
+ * Memmory allocation
+ ****************************************************************/
+
+// Allocate an area of memory
+void *
+alloc_chunk(size_t size)
+{
+    void *data = malloc(size);
+    if (!data)
+        shutdown("alloc_chunk failed");
+    memset(data, 0, size);
+    return data;
+}
+
+// Allocate an array of chunks
+void *
+alloc_chunks(size_t size, size_t count, size_t *avail)
+{
+    uint16_t memend = ALIGN(AVR_STACK_POINTER_REG, 256);
+    __malloc_heap_end = (void*)memend - CONFIG_AVR_STACK_SIZE;
+    extern char *__brkval;
+    uint16_t maxsize = __malloc_heap_end - __brkval - 2;
+    if ((int16_t)maxsize < 0)
+        maxsize = 0;
+    if (count * size > maxsize)
+        count = maxsize / size;
+    if (!count)
+        shutdown("alloc_chunks failed");
+    *avail = count;
+    return alloc_chunk(count * size);
+}
+
+
+/****************************************************************
+ * Misc functions
+ ****************************************************************/
+
+// Optimized crc16_ccitt for the avr processor
+uint16_t
+crc16_ccitt(char *buf, uint8_t len)
+{
+    uint16_t crc = 0xFFFF;
+    while (len--)
+        crc = _crc_ccitt_update(crc, *buf++);
+    return crc;
+}
+
 // Main entry point for avr code.
 int
 main(void)
diff --git a/src/avr/misc.c b/src/avr/misc.c
deleted file mode 100644
index 9740a806..00000000
--- a/src/avr/misc.c
+++ /dev/null
@@ -1,54 +0,0 @@
-// AVR miscellaneous platform code
-//
-// Copyright (C) 2016,2017  Kevin O'Connor <kevin@koconnor.net>
-//
-// This file may be distributed under the terms of the GNU GPLv3 license.
-
-#include <avr/io.h> // AVR_STACK_POINTER_REG
-#include <stdlib.h> // __malloc_heap_end
-#include <string.h> // memset
-#include <util/crc16.h> // _crc_ccitt_update
-#include "autoconf.h" // CONFIG_AVR_STACK_SIZE
-#include "board/misc.h" // alloc_maxsize
-#include "command.h" // shutdown
-#include "compiler.h" // ALIGN
-#include "sched.h" // sched_shutdown
-
-// Optimized crc16_ccitt for the avr processor
-uint16_t
-crc16_ccitt(char *buf, uint8_t len)
-{
-    uint16_t crc = 0xFFFF;
-    while (len--)
-        crc = _crc_ccitt_update(crc, *buf++);
-    return crc;
-}
-
-// Allocate an area of memory
-void *
-alloc_chunk(size_t size)
-{
-    void *data = malloc(size);
-    if (!data)
-        shutdown("alloc_chunk failed");
-    memset(data, 0, size);
-    return data;
-}
-
-// Allocate an array of chunks
-void *
-alloc_chunks(size_t size, size_t count, size_t *avail)
-{
-    uint16_t memend = ALIGN(AVR_STACK_POINTER_REG, 256);
-    __malloc_heap_end = (void*)memend - CONFIG_AVR_STACK_SIZE;
-    extern char *__brkval;
-    uint16_t maxsize = __malloc_heap_end - __brkval - 2;
-    if ((int16_t)maxsize < 0)
-        maxsize = 0;
-    if (count * size > maxsize)
-        count = maxsize / size;
-    if (!count)
-        shutdown("alloc_chunks failed");
-    *avail = count;
-    return alloc_chunk(count * size);
-}