altos: Add generic LED driver.

This driver uses the generic GPIO functions and allows per-LED port
and pin configuration. It supports up to 32 LEDs.

Rename SoC-specific LED drivers.

Remove enabled parameter to ao_led_init

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/attiny/ao_led_tiny.c b/src/attiny/ao_led_tiny.c
new file mode 100644
index 00000000..cd620f46
--- /dev/null
+++ b/src/attiny/ao_led_tiny.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2009 Keith Packard <keithp@keithp.com>
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include "ao.h"
+
+#define LED_PORT	PORTB
+#define LED_DDR		DDRB
+
+void
+ao_led_on(uint8_t colors)
+{
+	LED_PORT |= colors;
+}
+
+void
+ao_led_off(uint8_t colors)
+{
+	LED_PORT &= ~colors;
+}
+
+void
+ao_led_set(uint8_t colors)
+{
+	LED_PORT = (LED_PORT & ~LEDS_AVAILABLE) | (colors & LEDS_AVAILABLE);
+}
+
+void
+ao_led_toggle(uint8_t colors)
+{
+	LED_PORT ^= (colors & LEDS_AVAILABLE);
+}
+
+void
+ao_led_for(uint8_t colors, AO_TICK_TYPE ticks)
+{
+	ao_led_on(colors);
+	ao_delay(ticks);
+	ao_led_off(colors);
+}
+
+void
+ao_led_init(void)
+{
+	LED_PORT &= ~LEDS_AVAILABLE;
+	LED_DDR |= LEDS_AVAILABLE;
+}