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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [leds.h] - Blame information for rev 81

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/*
 * Driver model for leds and led triggers
 *
 * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
 * Copyright (C) 2005 Richard Purdie <rpurdie@openedhand.com>
 *
 * 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.
 *
 */
#ifndef __LINUX_LEDS_H_INCLUDED
#define __LINUX_LEDS_H_INCLUDED
 
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/rwsem.h>
 
struct device;
/*
 * LED Core
 */
 
enum led_brightness {
        LED_OFF         = 0,
        LED_HALF        = 127,
        LED_FULL        = 255,
};
 
struct led_classdev {
        const char              *name;
        int                      brightness;
        int                      flags;
 
#define LED_SUSPENDED           (1 << 0)
 
        /* Set LED brightness level */
        void            (*brightness_set)(struct led_classdev *led_cdev,
                                          enum led_brightness brightness);
 
        struct device           *dev;
        struct list_head         node;                  /* LED Device list */
        char                    *default_trigger;       /* Trigger to use */
 
#ifdef CONFIG_LEDS_TRIGGERS
        /* Protects the trigger data below */
        struct rw_semaphore      trigger_lock;
 
        struct led_trigger      *trigger;
        struct list_head         trig_list;
        void                    *trigger_data;
#endif
};
 
extern int led_classdev_register(struct device *parent,
                                 struct led_classdev *led_cdev);
extern void led_classdev_unregister(struct led_classdev *led_cdev);
extern void led_classdev_suspend(struct led_classdev *led_cdev);
extern void led_classdev_resume(struct led_classdev *led_cdev);
 
/*
 * LED Triggers
 */
#ifdef CONFIG_LEDS_TRIGGERS
 
#define TRIG_NAME_MAX 50
 
struct led_trigger {
        /* Trigger Properties */
        const char       *name;
        void            (*activate)(struct led_classdev *led_cdev);
        void            (*deactivate)(struct led_classdev *led_cdev);
 
        /* LEDs under control by this trigger (for simple triggers) */
        rwlock_t          leddev_list_lock;
        struct list_head  led_cdevs;
 
        /* Link to next registered trigger */
        struct list_head  next_trig;
};
 
/* Registration functions for complex triggers */
extern int led_trigger_register(struct led_trigger *trigger);
extern void led_trigger_unregister(struct led_trigger *trigger);
 
/* Registration functions for simple triggers */
#define DEFINE_LED_TRIGGER(x)           static struct led_trigger *x;
#define DEFINE_LED_TRIGGER_GLOBAL(x)    struct led_trigger *x;
extern void led_trigger_register_simple(const char *name,
                                struct led_trigger **trigger);
extern void led_trigger_unregister_simple(struct led_trigger *trigger);
extern void led_trigger_event(struct led_trigger *trigger,
                                enum led_brightness event);
 
#else
 
/* Triggers aren't active - null macros */
#define DEFINE_LED_TRIGGER(x)
#define DEFINE_LED_TRIGGER_GLOBAL(x)
#define led_trigger_register_simple(x, y) do {} while(0)
#define led_trigger_unregister_simple(x) do {} while(0)
#define led_trigger_event(x, y) do {} while(0)
 
#endif
 
/* Trigger specific functions */
#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK
extern void ledtrig_ide_activity(void);
#else
#define ledtrig_ide_activity() do {} while(0)
#endif
 
/* For the leds-gpio driver */
struct gpio_led {
        const char *name;
        char *default_trigger;
        unsigned        gpio;
        u8              active_low;
};
 
struct gpio_led_platform_data {
        int             num_leds;
        struct gpio_led *leds;
};
 
 
#endif          /* __LINUX_LEDS_H_INCLUDED */

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* Driver model for leds and led triggers`
3			`*`
4			`* Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>`
5			`* Copyright (C) 2005 Richard Purdie <rpurdie@openedhand.com>`
6			`*`
7			`* This program is free software; you can redistribute it and/or modify`
8			`* it under the terms of the GNU General Public License version 2 as`
9			`* published by the Free Software Foundation.`
10			`*`
11			`*/`
12			`#ifndef __LINUX_LEDS_H_INCLUDED`
13			`#define __LINUX_LEDS_H_INCLUDED`
14
15			`#include <linux/list.h>`
16			`#include <linux/spinlock.h>`
17			`#include <linux/rwsem.h>`
18
19			`struct device;`
20			`/*`
21			`* LED Core`
22			`*/`
23
24			`enum led_brightness {`
25			`LED_OFF = 0,`
26			`LED_HALF = 127,`
27			`LED_FULL = 255,`
28			`};`
29
30			`struct led_classdev {`
31			`const char *name;`
32			`int brightness;`
33			`int flags;`
34
35			`#define LED_SUSPENDED (1 << 0)`
36
37			`/* Set LED brightness level */`
38			`void (brightness_set)(struct led_classdev led_cdev,`
39			`enum led_brightness brightness);`
40
41			`struct device *dev;`
42			`struct list_head node; /* LED Device list */`
43			`char default_trigger; / Trigger to use */`
44
45			`#ifdef CONFIG_LEDS_TRIGGERS`
46			`/* Protects the trigger data below */`
47			`struct rw_semaphore trigger_lock;`
48
49			`struct led_trigger *trigger;`
50			`struct list_head trig_list;`
51			`void *trigger_data;`
52			`#endif`
53			`};`
54
55			`extern int led_classdev_register(struct device *parent,`
56			`struct led_classdev *led_cdev);`
57			`extern void led_classdev_unregister(struct led_classdev *led_cdev);`
58			`extern void led_classdev_suspend(struct led_classdev *led_cdev);`
59			`extern void led_classdev_resume(struct led_classdev *led_cdev);`
60
61			`/*`
62			`* LED Triggers`
63			`*/`
64			`#ifdef CONFIG_LEDS_TRIGGERS`
65
66			`#define TRIG_NAME_MAX 50`
67
68			`struct led_trigger {`
69			`/* Trigger Properties */`
70			`const char *name;`
71			`void (activate)(struct led_classdev led_cdev);`
72			`void (deactivate)(struct led_classdev led_cdev);`
73
74			`/* LEDs under control by this trigger (for simple triggers) */`
75			`rwlock_t leddev_list_lock;`
76			`struct list_head led_cdevs;`
77
78			`/* Link to next registered trigger */`
79			`struct list_head next_trig;`
80			`};`
81
82			`/* Registration functions for complex triggers */`
83			`extern int led_trigger_register(struct led_trigger *trigger);`
84			`extern void led_trigger_unregister(struct led_trigger *trigger);`
85
86			`/* Registration functions for simple triggers */`
87			`#define DEFINE_LED_TRIGGER(x) static struct led_trigger *x;`
88			`#define DEFINE_LED_TRIGGER_GLOBAL(x) struct led_trigger *x;`
89			`extern void led_trigger_register_simple(const char *name,`
90			`struct led_trigger **trigger);`
91			`extern void led_trigger_unregister_simple(struct led_trigger *trigger);`
92			`extern void led_trigger_event(struct led_trigger *trigger,`
93			`enum led_brightness event);`
94
95			`#else`
96
97			`/* Triggers aren't active - null macros */`
98			`#define DEFINE_LED_TRIGGER(x)`
99			`#define DEFINE_LED_TRIGGER_GLOBAL(x)`
100			`#define led_trigger_register_simple(x, y) do {} while(0)`
101			`#define led_trigger_unregister_simple(x) do {} while(0)`
102			`#define led_trigger_event(x, y) do {} while(0)`
103
104			`#endif`
105
106			`/* Trigger specific functions */`
107			`#ifdef CONFIG_LEDS_TRIGGER_IDE_DISK`
108			`extern void ledtrig_ide_activity(void);`
109			`#else`
110			`#define ledtrig_ide_activity() do {} while(0)`
111			`#endif`
112
113			`/* For the leds-gpio driver */`
114			`struct gpio_led {`
115			`const char *name;`
116			`char *default_trigger;`
117			`unsigned gpio;`
118			`u8 active_low;`
119			`};`
120
121			`struct gpio_led_platform_data {`
122			`int num_leds;`
123			`struct gpio_led *leds;`
124			`};`
125
126
127			`#endif /* __LINUX_LEDS_H_INCLUDED */`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [leds.h] - Blame information for rev 81