/* 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 < shreshthakumar . sahu @ stericsson . com > * based on leds - lm3530 . c by Dan Murphy < D . Murphy @ motorola . com > #ifndef _LINUX_LED_LM3530_H__#define _LINUX_LED_LM3530_H__#define LM3530_FS_CURR_5mA (0 ) /* Full Scale Current */ #define LM3530_FS_CURR_8mA (1 )#define LM3530_FS_CURR_12mA (2 )#define LM3530_FS_CURR_15mA (3 )#define LM3530_FS_CURR_19mA (4 )#define LM3530_FS_CURR_22mA (5 )#define LM3530_FS_CURR_26mA (6 )#define LM3530_FS_CURR_29mA (7 )#define LM3530_ALS_AVRG_TIME_32ms (0 ) /* ALS Averaging Time */ #define LM3530_ALS_AVRG_TIME_64ms (1 )#define LM3530_ALS_AVRG_TIME_128ms (2 )#define LM3530_ALS_AVRG_TIME_256ms (3 )#define LM3530_ALS_AVRG_TIME_512ms (4 )#define LM3530_ALS_AVRG_TIME_1024ms (5 )#define LM3530_ALS_AVRG_TIME_2048ms (6 )#define LM3530_ALS_AVRG_TIME_4096ms (7 )#define LM3530_RAMP_TIME_1ms (0 ) /* Brigtness Ramp Time */ #define LM3530_RAMP_TIME_130ms (1 ) /* Max to 0 and vice versa */ #define LM3530_RAMP_TIME_260ms (2 )#define LM3530_RAMP_TIME_520ms (3 )#define LM3530_RAMP_TIME_1s (4 )#define LM3530_RAMP_TIME_2s (5 )#define LM3530_RAMP_TIME_4s (6 )#define LM3530_RAMP_TIME_8s (7 )/* ALS Resistor Select */ #define LM3530_ALS_IMPD_Z (0 x00) /* ALS Impedance */ #define LM3530_ALS_IMPD_13_53kOhm (0 x01)#define LM3530_ALS_IMPD_9_01kOhm (0 x02)#define LM3530_ALS_IMPD_5_41kOhm (0 x03)#define LM3530_ALS_IMPD_2_27kOhm (0 x04)#define LM3530_ALS_IMPD_1_94kOhm (0 x05)#define LM3530_ALS_IMPD_1_81kOhm (0 x06)#define LM3530_ALS_IMPD_1_6kOhm (0 x07)#define LM3530_ALS_IMPD_1_138kOhm (0 x08)#define LM3530_ALS_IMPD_1_05kOhm (0 x09)#define LM3530_ALS_IMPD_1_011kOhm (0 x0A)#define LM3530_ALS_IMPD_941Ohm (0 x0B)#define LM3530_ALS_IMPD_759Ohm (0 x0C)#define LM3530_ALS_IMPD_719Ohm (0 x0D)#define LM3530_ALS_IMPD_700Ohm (0 x0E)#define LM3530_ALS_IMPD_667Ohm (0 x0F)enum lm3530_mode {0 , /* "man" */ /* "als" */ /* "pwm" */ /* ALS input select */ enum lm3530_als_mode {0 , /* ALS1 and ALS2 input average */ /* ALS1 Input */ /* ALS2 Input */ /* Max of ALS1 and ALS2 */ /* PWM Platform Specific Data */ struct lm3530_pwm_data {void (*pwm_set_intensity) (int brightness, int max_brightness);int (*pwm_get_intensity) (int max_brightness);/** * 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 {enum lm3530_mode mode;enum lm3530_als_mode als_input_mode;bool pwm_pol_hi;bool brt_ramp_law;struct lm3530_pwm_data pwm_data;#endif /* _LINUX_LED_LM3530_H__ */
Messung V0.5 in Prozent C=94 H=92 G=92
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(vorverarbeitet am 2026-09-29)
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