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/* Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __LEDS_PM8XXX_H__
#define __LEDS_PM8XXX_H__
#include <linux/kernel.h>
#include <linux/mfd/pm8xxx/pwm.h>
#define PM8XXX_LEDS_DEV_NAME "pm8xxx-led"
/**
* enum pm8xxx_leds - PMIC8XXX supported led ids
* @PM8XXX_ID_LED_KB_LIGHT - keyboard backlight led
* @PM8XXX_ID_LED_0 - First low current led
* @PM8XXX_ID_LED_1 - Second low current led
* @PM8XXX_ID_LED_2 - Third low current led
* @PM8XXX_ID_FLASH_LED_0 - First flash led
* @PM8XXX_ID_FLASH_LED_0 - Second flash led
*/
enum pm8xxx_leds {
PM8XXX_ID_LED_KB_LIGHT = 1,
PM8XXX_ID_LED_0,
PM8XXX_ID_LED_1,
PM8XXX_ID_LED_2,
PM8XXX_ID_FLASH_LED_0,
PM8XXX_ID_FLASH_LED_1,
PM8XXX_ID_WLED,
PM8XXX_ID_RGB_LED_RED,
PM8XXX_ID_RGB_LED_GREEN,
PM8XXX_ID_RGB_LED_BLUE,
PM8XXX_ID_MAX,
};
/**
* pm8xxx_led_modes - Operating modes of LEDs
*/
enum pm8xxx_led_modes {
PM8XXX_LED_MODE_MANUAL,
PM8XXX_LED_MODE_PWM1,
PM8XXX_LED_MODE_PWM2,
PM8XXX_LED_MODE_PWM3,
PM8XXX_LED_MODE_DTEST1,
PM8XXX_LED_MODE_DTEST2,
PM8XXX_LED_MODE_DTEST3,
PM8XXX_LED_MODE_DTEST4
};
/* current boost limit */
enum wled_current_bost_limit {
WLED_CURR_LIMIT_105mA,
WLED_CURR_LIMIT_385mA,
WLED_CURR_LIMIT_525mA,
WLED_CURR_LIMIT_805mA,
WLED_CURR_LIMIT_980mA,
WLED_CURR_LIMIT_1260mA,
WLED_CURR_LIMIT_1400mA,
WLED_CURR_LIMIT_1680mA,
};
/* over voltage protection threshold */
enum wled_ovp_threshold {
WLED_OVP_35V,
WLED_OVP_32V,
WLED_OVP_29V,
WLED_OVP_37V,
};
/**
* wled_config_data - wled configuration data
* @num_strings - number of wled strings supported
* @ovp_val - over voltage protection threshold
* @boost_curr_lim - boot current limit
* @cp_select - high pole capacitance
* @ctrl_delay_us - delay in activation of led
* @dig_mod_gen_en - digital module generator
* @cs_out_en - current sink output enable
* @op_fdbck - selection of output as feedback for the boost
* @cabc_en - enable cabc for backlight pwm control
*/
struct wled_config_data {
u8 num_strings;
u8 ovp_val;
u8 boost_curr_lim;
u8 cp_select;
u8 ctrl_delay_us;
bool dig_mod_gen_en;
bool cs_out_en;
bool op_fdbck;
bool cabc_en;
};
/**
* pm8xxx_led_config - led configuration parameters
* @id - LED id
* @mode - LED mode
* @max_current - maximum current that LED can sustain
* @pwm_channel - PWM channel ID the LED is driven to
* @pwm_period_us - PWM period value in micro seconds
* @default_state - default state of the led
* @pwm_duty_cycles - PWM duty cycle information
*/
struct pm8xxx_led_config {
u8 id;
u8 mode;
u16 max_current;
int pwm_channel;
u32 pwm_period_us;
bool default_state;
struct pm8xxx_pwm_duty_cycles *pwm_duty_cycles;
struct wled_config_data *wled_cfg;
};
/**
* pm8xxx_led_platform_data - platform data for LED
* @led_core - array of LEDs. Each datum in array contains
* core data for the LED
* @configs - array of platform configuration parameters
* for each LED. It maps one-to-one with
* array of LEDs
* @num_configs - count of members of configs array
*/
struct pm8xxx_led_platform_data {
struct led_platform_data *led_core;
struct pm8xxx_led_config *configs;
u32 num_configs;
};
#endif /* __LEDS_PM8XXX_H__ */