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drivers/leds/leds-hp6xx.c
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/* * LED Triggers Core * For the HP Jornada 620/660/680/690 handhelds * * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com> * this driver is based on leds-spitz.c by Richard Purdie. * * 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. */ |
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#include <linux/module.h> |
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#include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <asm/hd64461.h> |
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#include <mach/hp6xx.h> |
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static void hp6xxled_green_set(struct led_classdev *led_cdev, enum led_brightness value) |
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{ u8 v8; v8 = inb(PKDR); if (value) outb(v8 & (~PKDR_LED_GREEN), PKDR); else outb(v8 | PKDR_LED_GREEN, PKDR); } |
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static void hp6xxled_red_set(struct led_classdev *led_cdev, enum led_brightness value) |
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{ u16 v16; v16 = inw(HD64461_GPBDR); if (value) outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR); else outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR); } static struct led_classdev hp6xx_red_led = { .name = "hp6xx:red", .default_trigger = "hp6xx-charge", .brightness_set = hp6xxled_red_set, |
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.flags = LED_CORE_SUSPENDRESUME, |
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}; static struct led_classdev hp6xx_green_led = { .name = "hp6xx:green", .default_trigger = "ide-disk", .brightness_set = hp6xxled_green_set, |
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.flags = LED_CORE_SUSPENDRESUME, |
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}; |
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static int hp6xxled_probe(struct platform_device *pdev) { int ret; ret = led_classdev_register(&pdev->dev, &hp6xx_red_led); if (ret < 0) return ret; ret = led_classdev_register(&pdev->dev, &hp6xx_green_led); if (ret < 0) led_classdev_unregister(&hp6xx_red_led); return ret; } static int hp6xxled_remove(struct platform_device *pdev) { led_classdev_unregister(&hp6xx_red_led); led_classdev_unregister(&hp6xx_green_led); return 0; } static struct platform_driver hp6xxled_driver = { .probe = hp6xxled_probe, .remove = hp6xxled_remove, |
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.driver = { .name = "hp6xx-led", |
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.owner = THIS_MODULE, |
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}, }; |
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module_platform_driver(hp6xxled_driver); |
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MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>"); MODULE_DESCRIPTION("HP Jornada 6xx LED driver"); MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:hp6xx-led"); |