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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/leds/trigger/ledtrig-disk.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/leds/trigger/ledtrig-disk.c')
-rw-r--r--drivers/leds/trigger/ledtrig-disk.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/leds/trigger/ledtrig-disk.c b/drivers/leds/trigger/ledtrig-disk.c
new file mode 100644
index 0000000000..e9b87ee944
--- /dev/null
+++ b/drivers/leds/trigger/ledtrig-disk.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * LED Disk Activity Trigger
+ *
+ * Copyright 2006 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+
+#define BLINK_DELAY 30
+
+DEFINE_LED_TRIGGER(ledtrig_disk);
+DEFINE_LED_TRIGGER(ledtrig_disk_read);
+DEFINE_LED_TRIGGER(ledtrig_disk_write);
+
+void ledtrig_disk_activity(bool write)
+{
+ led_trigger_blink_oneshot(ledtrig_disk, BLINK_DELAY, BLINK_DELAY, 0);
+ if (write)
+ led_trigger_blink_oneshot(ledtrig_disk_write,
+ BLINK_DELAY, BLINK_DELAY, 0);
+ else
+ led_trigger_blink_oneshot(ledtrig_disk_read,
+ BLINK_DELAY, BLINK_DELAY, 0);
+}
+EXPORT_SYMBOL(ledtrig_disk_activity);
+
+static int __init ledtrig_disk_init(void)
+{
+ led_trigger_register_simple("disk-activity", &ledtrig_disk);
+ led_trigger_register_simple("disk-read", &ledtrig_disk_read);
+ led_trigger_register_simple("disk-write", &ledtrig_disk_write);
+
+ return 0;
+}
+device_initcall(ledtrig_disk_init);