1/*
  2 * LED Triggers Core
  3 * For the HP Jornada 620/660/680/690 handhelds
  4 *
  5 * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
  6 *     this driver is based on leds-spitz.c by Richard Purdie.
  7 *
  8 * This program is free software; you can redistribute it and/or modify
  9 * it under the terms of the GNU General Public License version 2 as
 10 * published by the Free Software Foundation.
 11 */
 12
 13#include <linux/module.h>
 14#include <linux/kernel.h>
 15#include <linux/init.h>
 16#include <linux/platform_device.h>
 17#include <linux/leds.h>
 18#include <asm/hd64461.h>
 19#include <mach/hp6xx.h>
 20
 21static void hp6xxled_green_set(struct led_classdev *led_cdev,
 22			       enum led_brightness value)
 23{
 24	u8 v8;
 25
 26	v8 = inb(PKDR);
 27	if (value)
 28		outb(v8 & (~PKDR_LED_GREEN), PKDR);
 29	else
 30		outb(v8 | PKDR_LED_GREEN, PKDR);
 31}
 32
 33static void hp6xxled_red_set(struct led_classdev *led_cdev,
 34			     enum led_brightness value)
 35{
 36	u16 v16;
 37
 38	v16 = inw(HD64461_GPBDR);
 39	if (value)
 40		outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
 41	else
 42		outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
 43}
 44
 45static struct led_classdev hp6xx_red_led = {
 46	.name			= "hp6xx:red",
 47	.default_trigger	= "hp6xx-charge",
 48	.brightness_set		= hp6xxled_red_set,
 49	.flags			= LED_CORE_SUSPENDRESUME,
 50};
 51
 52static struct led_classdev hp6xx_green_led = {
 53	.name			= "hp6xx:green",
 54	.default_trigger	= "ide-disk",
 55	.brightness_set		= hp6xxled_green_set,
 56	.flags			= LED_CORE_SUSPENDRESUME,
 57};
 58
 59static int hp6xxled_probe(struct platform_device *pdev)
 60{
 61	int ret;
 62
 63	ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
 64	if (ret < 0)
 65		return ret;
 66
 67	ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
 68	if (ret < 0)
 69		led_classdev_unregister(&hp6xx_red_led);
 70
 71	return ret;
 72}
 73
 74static int hp6xxled_remove(struct platform_device *pdev)
 75{
 76	led_classdev_unregister(&hp6xx_red_led);
 77	led_classdev_unregister(&hp6xx_green_led);
 78
 79	return 0;
 80}
 81
 82/* work with hotplug and coldplug */
 83MODULE_ALIAS("platform:hp6xx-led");
 84
 85static struct platform_driver hp6xxled_driver = {
 86	.probe		= hp6xxled_probe,
 87	.remove		= hp6xxled_remove,
 88	.driver		= {
 89		.name		= "hp6xx-led",
 90		.owner		= THIS_MODULE,
 91	},
 92};
 93
 94static int __init hp6xxled_init(void)
 95{
 96	return platform_driver_register(&hp6xxled_driver);
 97}
 98
 99static void __exit hp6xxled_exit(void)
100{
101	platform_driver_unregister(&hp6xxled_driver);
102}
103
104module_init(hp6xxled_init);
105module_exit(hp6xxled_exit);
106
107MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
108MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
109MODULE_LICENSE("GPL");

 1/*
 2 * LED Triggers Core
 3 * For the HP Jornada 620/660/680/690 handhelds
 4 *
 5 * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
 6 *     this driver is based on leds-spitz.c by Richard Purdie.
 7 *
 8 * This program is free software; you can redistribute it and/or modify
 9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/platform_device.h>
17#include <linux/leds.h>
18#include <asm/hd64461.h>
19#include <mach/hp6xx.h>
20
21static void hp6xxled_green_set(struct led_classdev *led_cdev,
22			       enum led_brightness value)
23{
24	u8 v8;
25
26	v8 = inb(PKDR);
27	if (value)
28		outb(v8 & (~PKDR_LED_GREEN), PKDR);
29	else
30		outb(v8 | PKDR_LED_GREEN, PKDR);
31}
32
33static void hp6xxled_red_set(struct led_classdev *led_cdev,
34			     enum led_brightness value)
35{
36	u16 v16;
37
38	v16 = inw(HD64461_GPBDR);
39	if (value)
40		outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
41	else
42		outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
43}
44
45static struct led_classdev hp6xx_red_led = {
46	.name			= "hp6xx:red",
47	.default_trigger	= "hp6xx-charge",
48	.brightness_set		= hp6xxled_red_set,
49	.flags			= LED_CORE_SUSPENDRESUME,
50};
51
52static struct led_classdev hp6xx_green_led = {
53	.name			= "hp6xx:green",
54	.default_trigger	= "ide-disk",
55	.brightness_set		= hp6xxled_green_set,
56	.flags			= LED_CORE_SUSPENDRESUME,
57};
58
59static int hp6xxled_probe(struct platform_device *pdev)
60{
61	int ret;
62
63	ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
64	if (ret < 0)
65		return ret;
66
67	ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
68	if (ret < 0)
69		led_classdev_unregister(&hp6xx_red_led);
70
71	return ret;
72}
73
74static int hp6xxled_remove(struct platform_device *pdev)
75{
76	led_classdev_unregister(&hp6xx_red_led);
77	led_classdev_unregister(&hp6xx_green_led);
78
79	return 0;
80}
81
 
 
 
82static struct platform_driver hp6xxled_driver = {
83	.probe		= hp6xxled_probe,
84	.remove		= hp6xxled_remove,
85	.driver		= {
86		.name		= "hp6xx-led",
87		.owner		= THIS_MODULE,
88	},
89};
90
91module_platform_driver(hp6xxled_driver);
 
 
 
 
 
 
 
 
 
 
 
92
93MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
94MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
95MODULE_LICENSE("GPL");
96MODULE_ALIAS("platform:hp6xx-led");