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64 lines
1.5 KiB
64 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* LEDs driver for the "User LED" on Routerboard532 |
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* |
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* Copyright (C) 2009 Phil Sutter <[email protected]> |
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* |
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* Based on leds-cobalt-qube.c by Florian Fainelly and |
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* rb-diag.c (my own standalone driver for both LED and |
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* button of Routerboard532). |
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*/ |
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#include <linux/leds.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <asm/mach-rc32434/gpio.h> |
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#include <asm/mach-rc32434/rb.h> |
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static void rb532_led_set(struct led_classdev *cdev, |
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enum led_brightness brightness) |
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{ |
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if (brightness) |
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set_latch_u5(LO_ULED, 0); |
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else |
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set_latch_u5(0, LO_ULED); |
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} |
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static enum led_brightness rb532_led_get(struct led_classdev *cdev) |
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{ |
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return (get_latch_u5() & LO_ULED) ? LED_FULL : LED_OFF; |
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} |
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static struct led_classdev rb532_uled = { |
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.name = "uled", |
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.brightness_set = rb532_led_set, |
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.brightness_get = rb532_led_get, |
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.default_trigger = "nand-disk", |
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}; |
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static int rb532_led_probe(struct platform_device *pdev) |
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{ |
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return led_classdev_register(&pdev->dev, &rb532_uled); |
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} |
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static int rb532_led_remove(struct platform_device *pdev) |
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{ |
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led_classdev_unregister(&rb532_uled); |
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return 0; |
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} |
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static struct platform_driver rb532_led_driver = { |
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.probe = rb532_led_probe, |
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.remove = rb532_led_remove, |
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.driver = { |
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.name = "rb532-led", |
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}, |
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}; |
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module_platform_driver(rb532_led_driver); |
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MODULE_LICENSE("GPL"); |
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MODULE_DESCRIPTION("User LED support for Routerboard532"); |
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MODULE_AUTHOR("Phil Sutter <[email protected]>"); |
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MODULE_ALIAS("platform:rb532-led");
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