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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-ebsa110/leds.c
downloadblackbird-op-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/mach-ebsa110/leds.c')
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diff --git a/arch/arm/mach-ebsa110/leds.c b/arch/arm/mach-ebsa110/leds.c
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+/*
+ * 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);
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