include/media/i2c/lm3560.h

   1 /*
   2  * include/media/i2c/lm3560.h
   3  *
   4  * Copyright (C) 2013 Texas Instruments
   5  *
   6  * Contact: Daniel Jeong <gshark.jeong@gmail.com>
   7  *                      Ldd-Mlp <ldd-mlp@list.ti.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  */
  19
  20 #ifndef __LM3560_H__
  21 #define __LM3560_H__
  22
  23 #include <media/v4l2-subdev.h>
  24
  25 #define LM3560_NAME     "lm3560"
  26 #define LM3560_I2C_ADDR (0x53)
  27
  28 /*  FLASH Brightness
  29  *      min 62500uA, step 62500uA, max 1000000uA
  30  */
  31 #define LM3560_FLASH_BRT_MIN 62500
  32 #define LM3560_FLASH_BRT_STEP 62500
  33 #define LM3560_FLASH_BRT_MAX 1000000
  34 #define LM3560_FLASH_BRT_uA_TO_REG(a)   \
  35         ((a) < LM3560_FLASH_BRT_MIN ? 0 :       \
  36          (((a) - LM3560_FLASH_BRT_MIN) / LM3560_FLASH_BRT_STEP))
  37 #define LM3560_FLASH_BRT_REG_TO_uA(a)           \
  38         ((a) * LM3560_FLASH_BRT_STEP + LM3560_FLASH_BRT_MIN)
  39
  40 /*  FLASH TIMEOUT DURATION
  41  *      min 32ms, step 32ms, max 1024ms
  42  */
  43 #define LM3560_FLASH_TOUT_MIN 32
  44 #define LM3560_FLASH_TOUT_STEP 32
  45 #define LM3560_FLASH_TOUT_MAX 1024
  46 #define LM3560_FLASH_TOUT_ms_TO_REG(a)  \
  47         ((a) < LM3560_FLASH_TOUT_MIN ? 0 :      \
  48          (((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP))
  49 #define LM3560_FLASH_TOUT_REG_TO_ms(a)          \
  50         ((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN)
  51
  52 /*  TORCH BRT
  53  *      min 31250uA, step 31250uA, max 250000uA
  54  */
  55 #define LM3560_TORCH_BRT_MIN 31250
  56 #define LM3560_TORCH_BRT_STEP 31250
  57 #define LM3560_TORCH_BRT_MAX 250000
  58 #define LM3560_TORCH_BRT_uA_TO_REG(a)   \
  59         ((a) < LM3560_TORCH_BRT_MIN ? 0 :       \
  60          (((a) - LM3560_TORCH_BRT_MIN) / LM3560_TORCH_BRT_STEP))
  61 #define LM3560_TORCH_BRT_REG_TO_uA(a)           \
  62         ((a) * LM3560_TORCH_BRT_STEP + LM3560_TORCH_BRT_MIN)
  63
  64 enum lm3560_led_id {
  65         LM3560_LED0 = 0,
  66         LM3560_LED1,
  67         LM3560_LED_MAX
  68 };
  69
  70 enum lm3560_peak_current {
  71         LM3560_PEAK_1600mA = 0x00,
  72         LM3560_PEAK_2300mA = 0x20,
  73         LM3560_PEAK_3000mA = 0x40,
  74         LM3560_PEAK_3600mA = 0x60
  75 };
  76
  77 /* struct lm3560_platform_data
  78  *
  79  * @peak :  peak current
  80  * @max_flash_timeout: flash timeout
  81  * @max_flash_brt: flash mode led brightness
  82  * @max_torch_brt: torch mode led brightness
  83  */
  84 struct lm3560_platform_data {
  85         enum lm3560_peak_current peak;
  86
  87         u32 max_flash_timeout;
  88         u32 max_flash_brt[LM3560_LED_MAX];
  89         u32 max_torch_brt[LM3560_LED_MAX];
  90 };
  91
  92 #endif /* __LM3560_H__ */