summaryrefslogtreecommitdiff
path: root/keyboard/lightsaber/backlight.c
diff options
context:
space:
mode:
authorRalf Schmitt <ralf@bunkertor.net>2014-03-19 23:58:08 +0100
committerRalf Schmitt <ralf@bunkertor.net>2014-03-19 23:58:08 +0100
commit526d988a0caadc1a48bea862f605c9cee90c3dd3 (patch)
tree8c47584c7ab21ffa9f7b6b46937a33c85cb4dc43 /keyboard/lightsaber/backlight.c
parent160678a7b825af634a6fe02ea6a191b5c67cf75b (diff)
Added basic led+backlight support
Diffstat (limited to 'keyboard/lightsaber/backlight.c')
-rw-r--r--keyboard/lightsaber/backlight.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/keyboard/lightsaber/backlight.c b/keyboard/lightsaber/backlight.c
new file mode 100644
index 0000000000..b28200807c
--- /dev/null
+++ b/keyboard/lightsaber/backlight.c
@@ -0,0 +1,56 @@
+/*
+Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
+
+This program 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 2 of the License, or
+(at your option) any later version.
+
+This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <avr/io.h>
+#include "backlight.h"
+
+/* Backlight pin configuration
+ *
+ * Alphas PB1 (high)
+ * Numeric PB2 (high)
+ * Mod+Num PB3 (high)
+ * Backside PD6 (high)
+ * TopRight PD7 (low)
+ * F-Row PE6 (high)
+ *
+ */
+void backlight_set(uint8_t level)
+{
+ // Set as output.
+ DDRB |= (1<<1) | (1<<2) | (1<<3);
+ DDRD |= (1<<6) | (1<<7);
+ DDRE |= (1<<6);
+
+ if(level & (1<<0))
+ {
+ PORTB &= ~(1<<1);
+ PORTB &= ~(1<<2);
+ PORTB &= ~(1<<3);
+ PORTD &= ~(1<<6);
+ PORTD |= (1<<7);
+ PORTE &= ~(1<<6);
+ }
+ else
+ {
+ PORTB |= (1<<1);
+ PORTB |= (1<<2);
+ PORTB |= (1<<3);
+ PORTD |= (1<<6);
+ PORTD &= ~(1<<7);
+ PORTE |= (1<<6);
+ }
+}