~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/led-lm3530.h

Version: ~ [ linux-5.2 ] ~ [ linux-5.1.16 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.57 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.132 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.184 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.184 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.69 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * Copyright (C) 2011 ST-Ericsson SA.
  3  * Copyright (C) 2009 Motorola, Inc.
  4  *
  5  * License Terms: GNU General Public License v2
  6  *
  7  * Simple driver for National Semiconductor LM35330 Backlight driver chip
  8  *
  9  * Author: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com>
 10  * based on leds-lm3530.c by Dan Murphy <D.Murphy@motorola.com>
 11  */
 12 
 13 #ifndef _LINUX_LED_LM3530_H__
 14 #define _LINUX_LED_LM3530_H__
 15 
 16 #define LM3530_FS_CURR_5mA              (0) /* Full Scale Current */
 17 #define LM3530_FS_CURR_8mA              (1)
 18 #define LM3530_FS_CURR_12mA             (2)
 19 #define LM3530_FS_CURR_15mA             (3)
 20 #define LM3530_FS_CURR_19mA             (4)
 21 #define LM3530_FS_CURR_22mA             (5)
 22 #define LM3530_FS_CURR_26mA             (6)
 23 #define LM3530_FS_CURR_29mA             (7)
 24 
 25 #define LM3530_ALS_AVRG_TIME_32ms       (0) /* ALS Averaging Time */
 26 #define LM3530_ALS_AVRG_TIME_64ms       (1)
 27 #define LM3530_ALS_AVRG_TIME_128ms      (2)
 28 #define LM3530_ALS_AVRG_TIME_256ms      (3)
 29 #define LM3530_ALS_AVRG_TIME_512ms      (4)
 30 #define LM3530_ALS_AVRG_TIME_1024ms     (5)
 31 #define LM3530_ALS_AVRG_TIME_2048ms     (6)
 32 #define LM3530_ALS_AVRG_TIME_4096ms     (7)
 33 
 34 #define LM3530_RAMP_TIME_1ms            (0) /* Brigtness Ramp Time */
 35 #define LM3530_RAMP_TIME_130ms          (1) /* Max to 0 and vice versa */
 36 #define LM3530_RAMP_TIME_260ms          (2)
 37 #define LM3530_RAMP_TIME_520ms          (3)
 38 #define LM3530_RAMP_TIME_1s             (4)
 39 #define LM3530_RAMP_TIME_2s             (5)
 40 #define LM3530_RAMP_TIME_4s             (6)
 41 #define LM3530_RAMP_TIME_8s             (7)
 42 
 43 /* ALS Resistor Select */
 44 #define LM3530_ALS_IMPD_Z               (0x00) /* ALS Impedance */
 45 #define LM3530_ALS_IMPD_13_53kOhm       (0x01)
 46 #define LM3530_ALS_IMPD_9_01kOhm        (0x02)
 47 #define LM3530_ALS_IMPD_5_41kOhm        (0x03)
 48 #define LM3530_ALS_IMPD_2_27kOhm        (0x04)
 49 #define LM3530_ALS_IMPD_1_94kOhm        (0x05)
 50 #define LM3530_ALS_IMPD_1_81kOhm        (0x06)
 51 #define LM3530_ALS_IMPD_1_6kOhm         (0x07)
 52 #define LM3530_ALS_IMPD_1_138kOhm       (0x08)
 53 #define LM3530_ALS_IMPD_1_05kOhm        (0x09)
 54 #define LM3530_ALS_IMPD_1_011kOhm       (0x0A)
 55 #define LM3530_ALS_IMPD_941Ohm          (0x0B)
 56 #define LM3530_ALS_IMPD_759Ohm          (0x0C)
 57 #define LM3530_ALS_IMPD_719Ohm          (0x0D)
 58 #define LM3530_ALS_IMPD_700Ohm          (0x0E)
 59 #define LM3530_ALS_IMPD_667Ohm          (0x0F)
 60 
 61 enum lm3530_mode {
 62         LM3530_BL_MODE_MANUAL = 0,      /* "man" */
 63         LM3530_BL_MODE_ALS,             /* "als" */
 64         LM3530_BL_MODE_PWM,             /* "pwm" */
 65 };
 66 
 67 /* ALS input select */
 68 enum lm3530_als_mode {
 69         LM3530_INPUT_AVRG = 0,  /* ALS1 and ALS2 input average */
 70         LM3530_INPUT_ALS1,      /* ALS1 Input */
 71         LM3530_INPUT_ALS2,      /* ALS2 Input */
 72         LM3530_INPUT_CEIL,      /* Max of ALS1 and ALS2 */
 73 };
 74 
 75 /* PWM Platform Specific Data */
 76 struct lm3530_pwm_data {
 77         void (*pwm_set_intensity) (int brightness, int max_brightness);
 78         int (*pwm_get_intensity) (int max_brightness);
 79 };
 80 
 81 /**
 82  * struct lm3530_platform_data
 83  * @mode: mode of operation i.e. Manual, ALS or PWM
 84  * @als_input_mode: select source of ALS input - ALS1/2 or average
 85  * @max_current: full scale LED current
 86  * @pwm_pol_hi: PWM input polarity - active high/active low
 87  * @als_avrg_time: ALS input averaging time
 88  * @brt_ramp_law: brightness mapping mode - exponential/linear
 89  * @brt_ramp_fall: rate of fall of led current
 90  * @brt_ramp_rise: rate of rise of led current
 91  * @als1_resistor_sel: internal resistance from ALS1 input to ground
 92  * @als2_resistor_sel: internal resistance from ALS2 input to ground
 93  * @als_vmin: als input voltage calibrated for max brightness in mV
 94  * @als_vmax: als input voltage calibrated for min brightness in mV
 95  * @brt_val: brightness value (0-127)
 96  * @pwm_data: PWM control functions (only valid when the mode is PWM)
 97  */
 98 struct lm3530_platform_data {
 99         enum lm3530_mode mode;
100         enum lm3530_als_mode als_input_mode;
101 
102         u8 max_current;
103         bool pwm_pol_hi;
104         u8 als_avrg_time;
105 
106         bool brt_ramp_law;
107         u8 brt_ramp_fall;
108         u8 brt_ramp_rise;
109 
110         u8 als1_resistor_sel;
111         u8 als2_resistor_sel;
112 
113         u32 als_vmin;
114         u32 als_vmax;
115 
116         u8 brt_val;
117 
118         struct lm3530_pwm_data pwm_data;
119 };
120 
121 #endif  /* _LINUX_LED_LM3530_H__ */
122 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp