148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __LEDS_PM8XXX_H__
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#define __LEDS_PM8XXX_H__
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#include <linux/kernel.h>
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#include <linux/mfd/pm8xxx/pwm.h>
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#define PM8XXX_LEDS_DEV_NAME "pm8xxx-led"
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#define WLED_FIRST_STRING (1 << 2)
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#define WLED_SECOND_STRING (1 << 1)
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#define WLED_THIRD_STRING (1 << 0)
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/**
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* enum pm8xxx_leds - PMIC8XXX supported led ids
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* @PM8XXX_ID_LED_KB_LIGHT - keyboard backlight led
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* @PM8XXX_ID_LED_0 - First low current led
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* @PM8XXX_ID_LED_1 - Second low current led
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* @PM8XXX_ID_LED_2 - Third low current led
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* @PM8XXX_ID_FLASH_LED_0 - First flash led
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* @PM8XXX_ID_FLASH_LED_0 - Second flash led
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*/
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enum pm8xxx_leds {
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PM8XXX_ID_LED_KB_LIGHT = 1,
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PM8XXX_ID_LED_0,
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PM8XXX_ID_LED_1,
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PM8XXX_ID_LED_2,
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PM8XXX_ID_FLASH_LED_0,
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PM8XXX_ID_FLASH_LED_1,
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PM8XXX_ID_WLED,
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PM8XXX_ID_RGB_LED_RED,
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PM8XXX_ID_RGB_LED_GREEN,
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PM8XXX_ID_RGB_LED_BLUE,
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PM8XXX_ID_MAX,
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};
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/**
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* pm8xxx_led_modes - Operating modes of LEDs
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*/
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enum pm8xxx_led_modes {
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PM8XXX_LED_MODE_MANUAL,
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PM8XXX_LED_MODE_PWM1,
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PM8XXX_LED_MODE_PWM2,
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PM8XXX_LED_MODE_PWM3,
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PM8XXX_LED_MODE_DTEST1,
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PM8XXX_LED_MODE_DTEST2,
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PM8XXX_LED_MODE_DTEST3,
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PM8XXX_LED_MODE_DTEST4
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};
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/* current boost limit */
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enum wled_current_bost_limit {
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WLED_CURR_LIMIT_105mA,
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WLED_CURR_LIMIT_385mA,
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WLED_CURR_LIMIT_525mA,
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WLED_CURR_LIMIT_805mA,
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WLED_CURR_LIMIT_980mA,
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WLED_CURR_LIMIT_1260mA,
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WLED_CURR_LIMIT_1400mA,
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WLED_CURR_LIMIT_1680mA,
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};
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/* over voltage protection threshold */
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enum wled_ovp_threshold {
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WLED_OVP_35V,
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WLED_OVP_32V,
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WLED_OVP_29V,
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WLED_OVP_37V,
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};
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/**
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* wled_config_data - wled configuration data
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* @strings - strings supported
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* @ovp_val - over voltage protection threshold
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* @boost_curr_lim - boot current limit
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* @cp_select - high pole capacitance
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* @ctrl_delay_us - delay in activation of led
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* @dig_mod_gen_en - digital module generator
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* @cs_out_en - current sink output enable
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* @op_fdbck - selection of output as feedback for the boost
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* @cabc_en - enable cabc for backlight pwm control
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*
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*/
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struct wled_config_data {
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u8 strings;
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u8 ovp_val;
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u8 boost_curr_lim;
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u8 cp_select;
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u8 ctrl_delay_us;
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bool dig_mod_gen_en;
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bool cs_out_en;
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bool op_fdbck;
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bool cabc_en;
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bool sstart_en;
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bool max_current_ind;
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u8 max_three;
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u8 max_two;
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u8 max_one;
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};
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/**
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* pm8xxx_led_config - led configuration parameters
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* @id - LED id
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* @mode - LED mode
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* @max_current - maximum current that LED can sustain
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* @pwm_channel - PWM channel ID the LED is driven to
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* @pwm_period_us - PWM period value in micro seconds
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* @default_state - default state of the led
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* @pwm_duty_cycles - PWM duty cycle information
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*/
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struct pm8xxx_led_config {
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u8 id;
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u8 mode;
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u16 max_current;
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int pwm_channel;
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u32 pwm_period_us;
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bool default_state;
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struct pm8xxx_pwm_duty_cycles *pwm_duty_cycles;
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struct wled_config_data *wled_cfg;
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};
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/**
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* pm8xxx_led_platform_data - platform data for LED
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* @led_core - array of LEDs. Each datum in array contains
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* core data for the LED
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* @configs - array of platform configuration parameters
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* for each LED. It maps one-to-one with
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* array of LEDs
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* @num_configs - count of members of configs array
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*/
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struct pm8xxx_led_platform_data {
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struct led_platform_data *led_core;
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struct pm8xxx_led_config *configs;
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u32 num_configs;
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};
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#endif /* __LEDS_PM8XXX_H__ */
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