include/media/i2c/lm3646.h

   1 /*
   2  * include/media/i2c/lm3646.h
   3  *
   4  * Copyright (C) 2014 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
  14 #ifndef __LM3646_H__
  15 #define __LM3646_H__
  16
  17 #include <media/v4l2-subdev.h>
  18
  19 #define LM3646_NAME     "lm3646"
  20 #define LM3646_I2C_ADDR_REV1    (0x67)
  21 #define LM3646_I2C_ADDR_REV0    (0x63)
  22
  23 /*  TOTAL FLASH Brightness Max
  24  *      min 93350uA, step 93750uA, max 1499600uA
  25  */
  26 #define LM3646_TOTAL_FLASH_BRT_MIN 93350
  27 #define LM3646_TOTAL_FLASH_BRT_STEP 93750
  28 #define LM3646_TOTAL_FLASH_BRT_MAX 1499600
  29 #define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a)     \
  30         ((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 : \
  31          ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))
  32
  33 /*  TOTAL TORCH Brightness Max
  34  *      min 23040uA, step 23430uA, max 187100uA
  35  */
  36 #define LM3646_TOTAL_TORCH_BRT_MIN 23040
  37 #define LM3646_TOTAL_TORCH_BRT_STEP 23430
  38 #define LM3646_TOTAL_TORCH_BRT_MAX 187100
  39 #define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a)     \
  40         ((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 : \
  41          ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))
  42
  43 /*  LED1 FLASH Brightness
  44  *      min 23040uA, step 11718uA, max 1499600uA
  45  */
  46 #define LM3646_LED1_FLASH_BRT_MIN 23040
  47 #define LM3646_LED1_FLASH_BRT_STEP 11718
  48 #define LM3646_LED1_FLASH_BRT_MAX 1499600
  49 #define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)      \
  50         ((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 : \
  51          ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)
  52
  53 /*  LED1 TORCH Brightness
  54  *      min 2530uA, step 1460uA, max 187100uA
  55  */
  56 #define LM3646_LED1_TORCH_BRT_MIN 2530
  57 #define LM3646_LED1_TORCH_BRT_STEP 1460
  58 #define LM3646_LED1_TORCH_BRT_MAX 187100
  59 #define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)      \
  60         ((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 : \
  61          ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)
  62
  63 /*  FLASH TIMEOUT DURATION
  64  *      min 50ms, step 50ms, max 400ms
  65  */
  66 #define LM3646_FLASH_TOUT_MIN 50
  67 #define LM3646_FLASH_TOUT_STEP 50
  68 #define LM3646_FLASH_TOUT_MAX 400
  69 #define LM3646_FLASH_TOUT_ms_TO_REG(a)  \
  70         ((a) <= LM3646_FLASH_TOUT_MIN ? 0 :     \
  71          (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))
  72
  73 /* struct lm3646_platform_data
  74  *
  75  * @flash_timeout: flash timeout
  76  * @led1_flash_brt: led1 flash mode brightness, uA
  77  * @led1_torch_brt: led1 torch mode brightness, uA
  78  */
  79 struct lm3646_platform_data {
  80
  81         u32 flash_timeout;
  82
  83         u32 led1_flash_brt;
  84         u32 led1_torch_brt;
  85 };
  86
  87 #endif /* __LM3646_H__ */