From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Tue, 25 Jun 2013 20:26:33 +0000 (+0200)
Subject: Include date and git revision in the eeprom variable
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=bike-lights.git;a=commitdiff_plain;h=b5276d19a1a8fd1116b23414d15a444e97a9e030;hp=accd3529556e8deb9a93ec620c7b336e9e12286b

Include date and git revision in the eeprom variable

... in order to be able to find out which firmware version is this MCU
running. This roughly corresponds to the commit
49420b56b31e113f4c40128c530f2e585a9f8061
of project Tinyboard.
---

diff --git a/firmware/Makefile b/firmware/Makefile
index 1b0113e..726558b 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -1,7 +1,7 @@
 
 PROGRAM=lights
-SRC=main.c logging.c adc.c pwm.c tmr.c pwmled.c gpio.c ambient.c pattern.c \
-	buttons.c battery.c control.c
+SRC=version.c main.c logging.c adc.c pwm.c tmr.c pwmled.c gpio.c ambient.c \
+	pattern.c buttons.c battery.c control.c
 OBJ=$(SRC:.c=.o)
 
 
@@ -63,5 +63,10 @@ objdump: $(PROGRAM).elf
 clean:
 	rm -f $(PROGRAM).hex $(PROGRAM).eep $(PROGRAM).elf *.o *.s eeprom.raw
 
-.PHONY: all clean dump_eeprom program program_flash program_eeprom objdump
+version.c:
+	./version.pl > version.c
+
+.PHONY: all clean dump_eeprom program program_flash program_eeprom objdump \
+	version.c
+
 
diff --git a/firmware/version.pl b/firmware/version.pl
new file mode 100755
index 0000000..4052844
--- /dev/null
+++ b/firmware/version.pl
@@ -0,0 +1,32 @@
+#!/usr/bin/perl -w
+
+use strict;
+use POSIX qw(strftime);
+
+my $git = `git rev-parse --short HEAD`;
+chomp $git;
+
+my $now = strftime('%Y%m%d', localtime(time));
+
+print <<EOF;
+/* DO NOT EDIT - GENERATED BY $0 */
+
+#include <avr/eeprom.h>
+
+unsigned char version[] EEMEM = {
+EOF
+
+print hex2c($now, "date");
+print hex2c($git, "git revision");
+
+print "};\n\n/* EOF - this file has not been truncated */\n\n";
+
+sub hex2c {
+	my ($data, $comment) = @_;
+
+	my $data1 = $data;
+	$data1 .= '0' if (length($data1) & 1 == 1);
+	$data1 =~ s/(..)/0x$1, /g;
+	return "\t$data1 /* $comment $data */\n";
+}
+