/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2011 ST-Ericsson SA. * Copyright (C) 2009 Motorola, Inc. * * Simple driver for National Semiconductor LM35330 Backlight driver chip * * Author: Shreshtha Kumar SAHU <[email protected]> * based on leds-lm3530.c by Dan Murphy <[email protected]> */ #ifndef _LINUX_LED_LM3530_H__ #define _LINUX_LED_LM3530_H__ #define LM3530_FS_CURR_5mA … #define LM3530_FS_CURR_8mA … #define LM3530_FS_CURR_12mA … #define LM3530_FS_CURR_15mA … #define LM3530_FS_CURR_19mA … #define LM3530_FS_CURR_22mA … #define LM3530_FS_CURR_26mA … #define LM3530_FS_CURR_29mA … #define LM3530_ALS_AVRG_TIME_32ms … #define LM3530_ALS_AVRG_TIME_64ms … #define LM3530_ALS_AVRG_TIME_128ms … #define LM3530_ALS_AVRG_TIME_256ms … #define LM3530_ALS_AVRG_TIME_512ms … #define LM3530_ALS_AVRG_TIME_1024ms … #define LM3530_ALS_AVRG_TIME_2048ms … #define LM3530_ALS_AVRG_TIME_4096ms … #define LM3530_RAMP_TIME_1ms … #define LM3530_RAMP_TIME_130ms … #define LM3530_RAMP_TIME_260ms … #define LM3530_RAMP_TIME_520ms … #define LM3530_RAMP_TIME_1s … #define LM3530_RAMP_TIME_2s … #define LM3530_RAMP_TIME_4s … #define LM3530_RAMP_TIME_8s … /* ALS Resistor Select */ #define LM3530_ALS_IMPD_Z … #define LM3530_ALS_IMPD_13_53kOhm … #define LM3530_ALS_IMPD_9_01kOhm … #define LM3530_ALS_IMPD_5_41kOhm … #define LM3530_ALS_IMPD_2_27kOhm … #define LM3530_ALS_IMPD_1_94kOhm … #define LM3530_ALS_IMPD_1_81kOhm … #define LM3530_ALS_IMPD_1_6kOhm … #define LM3530_ALS_IMPD_1_138kOhm … #define LM3530_ALS_IMPD_1_05kOhm … #define LM3530_ALS_IMPD_1_011kOhm … #define LM3530_ALS_IMPD_941Ohm … #define LM3530_ALS_IMPD_759Ohm … #define LM3530_ALS_IMPD_719Ohm … #define LM3530_ALS_IMPD_700Ohm … #define LM3530_ALS_IMPD_667Ohm … enum lm3530_mode { … }; /* ALS input select */ enum lm3530_als_mode { … }; /* PWM Platform Specific Data */ struct lm3530_pwm_data { … }; /** * struct lm3530_platform_data * @mode: mode of operation i.e. Manual, ALS or PWM * @als_input_mode: select source of ALS input - ALS1/2 or average * @max_current: full scale LED current * @pwm_pol_hi: PWM input polarity - active high/active low * @als_avrg_time: ALS input averaging time * @brt_ramp_law: brightness mapping mode - exponential/linear * @brt_ramp_fall: rate of fall of led current * @brt_ramp_rise: rate of rise of led current * @als1_resistor_sel: internal resistance from ALS1 input to ground * @als2_resistor_sel: internal resistance from ALS2 input to ground * @als_vmin: als input voltage calibrated for max brightness in mV * @als_vmax: als input voltage calibrated for min brightness in mV * @brt_val: brightness value (0-127) * @pwm_data: PWM control functions (only valid when the mode is PWM) */ struct lm3530_platform_data { … }; #endif /* _LINUX_LED_LM3530_H__ */
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