patch-2.4.4 linux/arch/arm/mach-ebsa110/leds.c

• Lines: 52
• Date: Thu Apr 12 12:20:31 2001
• Orig file: v2.4.3/linux/arch/arm/mach-ebsa110/leds.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.3/linux/arch/arm/mach-ebsa110/leds.c linux/arch/arm/mach-ebsa110/leds.c
@@ -0,0 +1,51 @@
+/*
+ *  linux/arch/arm/mach-ebsa110/leds.c
+ *
+ *  Copyright (C) 1998 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.
+ *
+ *  EBSA-110 LED control routines.  We use the led as follows:
+ *
+ *   - Red - toggles state every 50 timer interrupts
+ */
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/system.h>
+#include <asm/mach-types.h>
+
+static spinlock_t leds_lock;
+
+static void ebsa110_leds_event(led_event_t ledevt)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&leds_lock, flags);
+
+	switch(ledevt) {
+	case led_timer:
+		*(volatile unsigned char *)SOFT_BASE ^= 128;
+		break;
+
+	default:
+		break;
+	}
+
+	spin_unlock_irqrestore(&leds_lock, flags);
+}
+
+static int __init leds_init(void)
+{
+	if (machine_is_ebsa110())
+		leds_event = ebsa110_leds_event;
+
+	return 0;
+}
+
+__initcall(leds_init);