aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/arch/arm/mach-imx/leds-mx1ads.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-imx/leds-mx1ads.c')
-rw-r--r--arch/arm/mach-imx/leds-mx1ads.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/leds-mx1ads.c b/arch/arm/mach-imx/leds-mx1ads.c
new file mode 100644
index 000000000000..e6399b06e4a4
--- /dev/null
+++ b/arch/arm/mach-imx/leds-mx1ads.c
@@ -0,0 +1,54 @@
+/*
+ * linux/arch/arm/mach-imx/leds-mx1ads.c
+ *
+ * Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
+ *
+ * Original (leds-footbridge.c) by Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/hardware.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+#include "leds.h"
+
+/*
+ * The MX1ADS Board has only one usable LED,
+ * so select only the timer led or the
+ * cpu usage led
+ */
+void
+mx1ads_leds_event(led_event_t ledevt)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ switch (ledevt) {
+#ifdef CONFIG_LEDS_CPU
+ case led_idle_start:
+ DR(0) &= ~(1<<2);
+ break;
+
+ case led_idle_end:
+ DR(0) |= 1<<2;
+ break;
+#endif
+
+#ifdef CONFIG_LEDS_TIMER
+ case led_timer:
+ DR(0) ^= 1<<2;
+#endif
+ default:
+ break;
+ }
+ local_irq_restore(flags);
+}