leds-lp55xx-common.h (b3b6f8119d752c969c6394314dc7ab80e6611111) leds-lp55xx-common.h (10c06d178df11b0b2b746321a80ea14241997127)
1/*
2 * LP55XX Common Driver Header
3 *
4 * Copyright (C) 2012 Texas Instruments
5 *
6 * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * Derived from leds-lp5521.c, leds-lp5523.c
13 */
14
15#ifndef _LEDS_LP55XX_COMMON_H
16#define _LEDS_LP55XX_COMMON_H
17
1/*
2 * LP55XX Common Driver Header
3 *
4 * Copyright (C) 2012 Texas Instruments
5 *
6 * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * Derived from leds-lp5521.c, leds-lp5523.c
13 */
14
15#ifndef _LEDS_LP55XX_COMMON_H
16#define _LEDS_LP55XX_COMMON_H
17
18enum lp55xx_engine_index {
19 LP55XX_ENGINE_INVALID,
20 LP55XX_ENGINE_1,
21 LP55XX_ENGINE_2,
22 LP55XX_ENGINE_3,
23};
24
18struct lp55xx_led;
19struct lp55xx_chip;
20
21/*
22 * struct lp55xx_reg
23 * @addr : Register address
24 * @val : Register value
25 */

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31/*
32 * struct lp55xx_device_config
33 * @reset : Chip specific reset command
34 * @enable : Chip specific enable command
35 * @max_channel : Maximum number of channels
36 * @post_init_device : Chip specific initialization code
37 * @brightness_work_fn : Brightness work function
38 * @set_led_current : LED current set function
25struct lp55xx_led;
26struct lp55xx_chip;
27
28/*
29 * struct lp55xx_reg
30 * @addr : Register address
31 * @val : Register value
32 */

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38/*
39 * struct lp55xx_device_config
40 * @reset : Chip specific reset command
41 * @enable : Chip specific enable command
42 * @max_channel : Maximum number of channels
43 * @post_init_device : Chip specific initialization code
44 * @brightness_work_fn : Brightness work function
45 * @set_led_current : LED current set function
46 * @firmware_cb : Call function when the firmware is loaded
47 * @run_engine : Run internal engine for pattern
39 */
40struct lp55xx_device_config {
41 const struct lp55xx_reg reset;
42 const struct lp55xx_reg enable;
43 const int max_channel;
44
45 /* define if the device has specific initialization process */
46 int (*post_init_device) (struct lp55xx_chip *chip);
47
48 /* access brightness register */
49 void (*brightness_work_fn)(struct work_struct *work);
50
51 /* current setting function */
52 void (*set_led_current) (struct lp55xx_led *led, u8 led_current);
48 */
49struct lp55xx_device_config {
50 const struct lp55xx_reg reset;
51 const struct lp55xx_reg enable;
52 const int max_channel;
53
54 /* define if the device has specific initialization process */
55 int (*post_init_device) (struct lp55xx_chip *chip);
56
57 /* access brightness register */
58 void (*brightness_work_fn)(struct work_struct *work);
59
60 /* current setting function */
61 void (*set_led_current) (struct lp55xx_led *led, u8 led_current);
62
63 /* access program memory when the firmware is loaded */
64 void (*firmware_cb)(struct lp55xx_chip *chip);
65
66 /* used for running firmware LED patterns */
67 void (*run_engine) (struct lp55xx_chip *chip, bool start);
53};
54
55/*
56 * struct lp55xx_chip
57 * @cl : I2C communication for access registers
58 * @pdata : Platform specific data
59 * @lock : Lock for user-space interface
60 * @num_leds : Number of registered LEDs
61 * @cfg : Device specific configuration data
68};
69
70/*
71 * struct lp55xx_chip
72 * @cl : I2C communication for access registers
73 * @pdata : Platform specific data
74 * @lock : Lock for user-space interface
75 * @num_leds : Number of registered LEDs
76 * @cfg : Device specific configuration data
77 * @engine_idx : Selected engine number
78 * @fw : Firmware data for running a LED pattern
62 */
63struct lp55xx_chip {
64 struct i2c_client *cl;
65 struct lp55xx_platform_data *pdata;
66 struct mutex lock; /* lock for user-space interface */
67 int num_leds;
68 struct lp55xx_device_config *cfg;
79 */
80struct lp55xx_chip {
81 struct i2c_client *cl;
82 struct lp55xx_platform_data *pdata;
83 struct mutex lock; /* lock for user-space interface */
84 int num_leds;
85 struct lp55xx_device_config *cfg;
86 enum lp55xx_engine_index engine_idx;
87 const struct firmware *fw;
69};
70
71/*
72 * struct lp55xx_led
73 * @chan_nr : Channel number
74 * @cdev : LED class device
75 * @led_current : Current setting at each led channel
76 * @max_current : Maximun current at each led channel

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89
90/*
91 * struct lp55xx_led
92 * @chan_nr : Channel number
93 * @cdev : LED class device
94 * @led_current : Current setting at each led channel
95 * @max_current : Maximun current at each led channel

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