1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * linux/drivers/leds/leds-locomo.c
 4 *
 5 * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
 
 
 
 
 6 */
 7
 8#include <linux/kernel.h>
 9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/device.h>
12#include <linux/leds.h>
13
 
14#include <asm/hardware/locomo.h>
15
16static void locomoled_brightness_set(struct led_classdev *led_cdev,
17				enum led_brightness value, int offset)
18{
19	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
20	unsigned long flags;
21
22	local_irq_save(flags);
23	if (value)
24		locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
25	else
26		locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
27	local_irq_restore(flags);
28}
29
30static void locomoled_brightness_set0(struct led_classdev *led_cdev,
31				enum led_brightness value)
32{
33	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
34}
35
36static void locomoled_brightness_set1(struct led_classdev *led_cdev,
37				enum led_brightness value)
38{
39	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
40}
41
42static struct led_classdev locomo_led0 = {
43	.name			= "locomo:amber:charge",
44	.default_trigger	= "main-battery-charging",
45	.brightness_set		= locomoled_brightness_set0,
46};
47
48static struct led_classdev locomo_led1 = {
49	.name			= "locomo:green:mail",
50	.default_trigger	= "nand-disk",
51	.brightness_set		= locomoled_brightness_set1,
52};
53
54static int locomoled_probe(struct locomo_dev *ldev)
55{
56	int ret;
57
58	ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
59	if (ret < 0)
60		return ret;
61
62	return  devm_led_classdev_register(&ldev->dev, &locomo_led1);
63}
64
65
66static struct locomo_driver locomoled_driver = {
67	.drv = {
68		.name = "locomoled"
69	},
70	.devid	= LOCOMO_DEVID_LED,
71	.probe	= locomoled_probe,
72};
73
74static int __init locomoled_init(void)
75{
76	return locomo_driver_register(&locomoled_driver);
77}
78module_init(locomoled_init);
79
80MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
81MODULE_DESCRIPTION("Locomo LED driver");
82MODULE_LICENSE("GPL");

 
 1/*
 2 * linux/drivers/leds/leds-locomo.c
 3 *
 4 * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/module.h>
14#include <linux/device.h>
15#include <linux/leds.h>
16
17#include <mach/hardware.h>
18#include <asm/hardware/locomo.h>
19
20static void locomoled_brightness_set(struct led_classdev *led_cdev,
21				enum led_brightness value, int offset)
22{
23	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
24	unsigned long flags;
25
26	local_irq_save(flags);
27	if (value)
28		locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
29	else
30		locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
31	local_irq_restore(flags);
32}
33
34static void locomoled_brightness_set0(struct led_classdev *led_cdev,
35				enum led_brightness value)
36{
37	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
38}
39
40static void locomoled_brightness_set1(struct led_classdev *led_cdev,
41				enum led_brightness value)
42{
43	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
44}
45
46static struct led_classdev locomo_led0 = {
47	.name			= "locomo:amber:charge",
48	.default_trigger	= "main-battery-charging",
49	.brightness_set		= locomoled_brightness_set0,
50};
51
52static struct led_classdev locomo_led1 = {
53	.name			= "locomo:green:mail",
54	.default_trigger	= "nand-disk",
55	.brightness_set		= locomoled_brightness_set1,
56};
57
58static int locomoled_probe(struct locomo_dev *ldev)
59{
60	int ret;
61
62	ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
63	if (ret < 0)
64		return ret;
65
66	return  devm_led_classdev_register(&ldev->dev, &locomo_led1);
67}
68
69
70static struct locomo_driver locomoled_driver = {
71	.drv = {
72		.name = "locomoled"
73	},
74	.devid	= LOCOMO_DEVID_LED,
75	.probe	= locomoled_probe,
76};
77
78static int __init locomoled_init(void)
79{
80	return locomo_driver_register(&locomoled_driver);
81}
82module_init(locomoled_init);
83
84MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
85MODULE_DESCRIPTION("Locomo LED driver");
86MODULE_LICENSE("GPL");