BeagleBoard: Added LED driver
Added LED driver using status_led. USR0 is set to monitor the boot
status. USR1 is set to be the green LED.
Included adding configuration and command to the default configuration.
Signed-off-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/ti/beagle/led.c b/board/ti/beagle/led.c
new file mode 100644
index 0000000..df26552
--- /dev/null
+++ b/board/ti/beagle/led.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2010 Texas Instruments, Inc.
+ * Jason Kridner <jkridner@beagleboard.org>
+ *
+ * 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 <common.h>
+#include <status_led.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
+
+static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
+
+/* GPIO pins for the LEDs */
+#define BEAGLE_LED_USR0 149
+#define BEAGLE_LED_USR1 150
+
+#ifdef STATUS_LED_GREEN
+void green_LED_off (void)
+{
+ __led_set (STATUS_LED_GREEN, 0);
+}
+
+void green_LED_on (void)
+{
+ __led_set (STATUS_LED_GREEN, 1);
+}
+#endif
+
+void __led_init (led_id_t mask, int state)
+{
+ __led_set (mask, state);
+}
+
+void __led_toggle (led_id_t mask)
+{
+#ifdef STATUS_LED_BIT
+ if (STATUS_LED_BIT & mask) {
+ if (STATUS_LED_ON == saved_state[0])
+ __led_set(STATUS_LED_BIT, 0);
+ else
+ __led_set(STATUS_LED_BIT, 1);
+ }
+#endif
+#ifdef STATUS_LED_BIT1
+ if (STATUS_LED_BIT1 & mask) {
+ if (STATUS_LED_ON == saved_state[1])
+ __led_set(STATUS_LED_BIT1, 0);
+ else
+ __led_set(STATUS_LED_BIT1, 1);
+ }
+#endif
+}
+
+void __led_set (led_id_t mask, int state)
+{
+#ifdef STATUS_LED_BIT
+ if (STATUS_LED_BIT & mask) {
+ if (!omap_request_gpio(BEAGLE_LED_USR0)) {
+ omap_set_gpio_direction(BEAGLE_LED_USR0, 0);
+ omap_set_gpio_dataout(BEAGLE_LED_USR0, state);
+ }
+ saved_state[0] = state;
+ }
+#endif
+#ifdef STATUS_LED_BIT1
+ if (STATUS_LED_BIT1 & mask) {
+ if (!omap_request_gpio(BEAGLE_LED_USR1)) {
+ omap_set_gpio_direction(BEAGLE_LED_USR1, 0);
+ omap_set_gpio_dataout(BEAGLE_LED_USR1, state);
+ }
+ saved_state[1] = state;
+ }
+#endif
+}
+