88 строки
2.5 KiB
C
88 строки
2.5 KiB
C
/*
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* LP55XX Platform Data Header
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*
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* Copyright (C) 2012 Texas Instruments
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*
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* Author: Milo(Woogyom) Kim <milo.kim@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* Derived from leds-lp5521.h, leds-lp5523.h
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*/
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#ifndef _LEDS_LP55XX_H
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#define _LEDS_LP55XX_H
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/* Clock configuration */
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#define LP55XX_CLOCK_AUTO 0
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#define LP55XX_CLOCK_INT 1
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#define LP55XX_CLOCK_EXT 2
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/* Bits in LP5521 CONFIG register. 'update_config' in lp55xx_platform_data */
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#define LP5521_PWM_HF 0x40 /* PWM: 0 = 256Hz, 1 = 558Hz */
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#define LP5521_PWRSAVE_EN 0x20 /* 1 = Power save mode */
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#define LP5521_CP_MODE_OFF 0 /* Charge pump (CP) off */
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#define LP5521_CP_MODE_BYPASS 8 /* CP forced to bypass mode */
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#define LP5521_CP_MODE_1X5 0x10 /* CP forced to 1.5x mode */
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#define LP5521_CP_MODE_AUTO 0x18 /* Automatic mode selection */
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#define LP5521_R_TO_BATT 4 /* R out: 0 = CP, 1 = Vbat */
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#define LP5521_CLK_SRC_EXT 0 /* Ext-clk source (CLK_32K) */
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#define LP5521_CLK_INT 1 /* Internal clock */
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#define LP5521_CLK_AUTO 2 /* Automatic clock selection */
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struct lp55xx_led_config {
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const char *name;
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u8 chan_nr;
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u8 led_current; /* mA x10, 0 if led is not connected */
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u8 max_current;
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};
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struct lp55xx_predef_pattern {
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u8 *r;
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u8 *g;
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u8 *b;
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u8 size_r;
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u8 size_g;
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u8 size_b;
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};
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/*
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* struct lp55xx_platform_data
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* @led_config : Configurable led class device
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* @num_channels : Number of LED channels
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* @label : Used for naming LEDs
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* @clock_mode : Input clock mode. LP55XX_CLOCK_AUTO or _INT or _EXT
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* @setup_resources : Platform specific function before enabling the chip
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* @release_resources : Platform specific function after disabling the chip
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* @enable : EN pin control by platform side
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* @patterns : Predefined pattern data for RGB channels
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* @num_patterns : Number of patterns
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* @update_config : Value of CONFIG register
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*/
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struct lp55xx_platform_data {
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/* LED channel configuration */
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struct lp55xx_led_config *led_config;
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u8 num_channels;
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const char *label;
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/* Clock configuration */
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u8 clock_mode;
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/* Platform specific functions */
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int (*setup_resources)(void);
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void (*release_resources)(void);
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void (*enable)(bool state);
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/* Predefined pattern data */
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struct lp55xx_predef_pattern *patterns;
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unsigned int num_patterns;
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/* _CONFIG register */
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u8 update_config;
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};
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#endif /* _LEDS_LP55XX_H */
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