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");

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * LED Triggers Core
 4 * For the HP Jornada 620/660/680/690 handhelds
 5 *
 6 * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
 7 *     this driver is based on leds-spitz.c by Richard Purdie.
 
 
 
 
 8 */
 9
10#include <linux/module.h>
11#include <linux/kernel.h>
 
12#include <linux/platform_device.h>
13#include <linux/leds.h>
14#include <asm/hd64461.h>
15#include <mach/hp6xx.h>
16
17static void hp6xxled_green_set(struct led_classdev *led_cdev,
18			       enum led_brightness value)
19{
20	u8 v8;
21
22	v8 = inb(PKDR);
23	if (value)
24		outb(v8 & (~PKDR_LED_GREEN), PKDR);
25	else
26		outb(v8 | PKDR_LED_GREEN, PKDR);
27}
28
29static void hp6xxled_red_set(struct led_classdev *led_cdev,
30			     enum led_brightness value)
31{
32	u16 v16;
33
34	v16 = inw(HD64461_GPBDR);
35	if (value)
36		outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
37	else
38		outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
39}
40
41static struct led_classdev hp6xx_red_led = {
42	.name			= "hp6xx:red",
43	.default_trigger	= "hp6xx-charge",
44	.brightness_set		= hp6xxled_red_set,
45	.flags			= LED_CORE_SUSPENDRESUME,
46};
47
48static struct led_classdev hp6xx_green_led = {
49	.name			= "hp6xx:green",
50	.default_trigger	= "disk-activity",
51	.brightness_set		= hp6xxled_green_set,
52	.flags			= LED_CORE_SUSPENDRESUME,
53};
54
55static int hp6xxled_probe(struct platform_device *pdev)
56{
57	int ret;
58
59	ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led);
60	if (ret < 0)
61		return ret;
62
63	return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led);
 
 
 
 
 
 
 
 
 
 
 
 
64}
65
66static struct platform_driver hp6xxled_driver = {
67	.probe		= hp6xxled_probe,
 
68	.driver		= {
69		.name		= "hp6xx-led",
 
70	},
71};
72
73module_platform_driver(hp6xxled_driver);
74
75MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
76MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
77MODULE_LICENSE("GPL");
78MODULE_ALIAS("platform:hp6xx-led");