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47 lines
1.2 KiB
47 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* LED Disk Activity Trigger |
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* |
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* Copyright 2006 Openedhand Ltd. |
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* |
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* Author: Richard Purdie <[email protected]> |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/leds.h> |
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#define BLINK_DELAY 30 |
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DEFINE_LED_TRIGGER(ledtrig_disk); |
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DEFINE_LED_TRIGGER(ledtrig_disk_read); |
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DEFINE_LED_TRIGGER(ledtrig_disk_write); |
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DEFINE_LED_TRIGGER(ledtrig_ide); |
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void ledtrig_disk_activity(bool write) |
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{ |
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unsigned long blink_delay = BLINK_DELAY; |
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led_trigger_blink_oneshot(ledtrig_disk, |
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&blink_delay, &blink_delay, 0); |
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led_trigger_blink_oneshot(ledtrig_ide, |
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&blink_delay, &blink_delay, 0); |
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if (write) |
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led_trigger_blink_oneshot(ledtrig_disk_write, |
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&blink_delay, &blink_delay, 0); |
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else |
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led_trigger_blink_oneshot(ledtrig_disk_read, |
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&blink_delay, &blink_delay, 0); |
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} |
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EXPORT_SYMBOL(ledtrig_disk_activity); |
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static int __init ledtrig_disk_init(void) |
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{ |
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led_trigger_register_simple("disk-activity", &ledtrig_disk); |
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led_trigger_register_simple("disk-read", &ledtrig_disk_read); |
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led_trigger_register_simple("disk-write", &ledtrig_disk_write); |
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led_trigger_register_simple("ide-disk", &ledtrig_ide); |
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return 0; |
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} |
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device_initcall(ledtrig_disk_init);
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