include/media/i2c/lm3646.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * include/media/i2c/lm3646.h
   4  *
   5  * Copyright (C) 2014 Texas Instruments
   6  *
   7  * Contact: Daniel Jeong <gshark.jeong@gmail.com>
   8  *                      Ldd-Mlp <ldd-mlp@list.ti.com>
   9  */
  10
  11 #ifndef __LM3646_H__
  12 #define __LM3646_H__
  13
  14 #include <media/v4l2-subdev.h>
  15
  16 #define LM3646_NAME     "lm3646"
  17 #define LM3646_I2C_ADDR_REV1    (0x67)
  18 #define LM3646_I2C_ADDR_REV0    (0x63)
  19
  20 /*  TOTAL FLASH Brightness Max
  21  *      min 93350uA, step 93750uA, max 1499600uA
  22  */
  23 #define LM3646_TOTAL_FLASH_BRT_MIN 93350
  24 #define LM3646_TOTAL_FLASH_BRT_STEP 93750
  25 #define LM3646_TOTAL_FLASH_BRT_MAX 1499600
  26 #define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a)     \
  27         ((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 : \
  28          ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))
  29
  30 /*  TOTAL TORCH Brightness Max
  31  *      min 23040uA, step 23430uA, max 187100uA
  32  */
  33 #define LM3646_TOTAL_TORCH_BRT_MIN 23040
  34 #define LM3646_TOTAL_TORCH_BRT_STEP 23430
  35 #define LM3646_TOTAL_TORCH_BRT_MAX 187100
  36 #define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a)     \
  37         ((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 : \
  38          ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))
  39
  40 /*  LED1 FLASH Brightness
  41  *      min 23040uA, step 11718uA, max 1499600uA
  42  */
  43 #define LM3646_LED1_FLASH_BRT_MIN 23040
  44 #define LM3646_LED1_FLASH_BRT_STEP 11718
  45 #define LM3646_LED1_FLASH_BRT_MAX 1499600
  46 #define LM3646_LED1_FLASH_BRT_uA_TO_REG(a)      \
  47         ((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 : \
  48          ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)
  49
  50 /*  LED1 TORCH Brightness
  51  *      min 2530uA, step 1460uA, max 187100uA
  52  */
  53 #define LM3646_LED1_TORCH_BRT_MIN 2530
  54 #define LM3646_LED1_TORCH_BRT_STEP 1460
  55 #define LM3646_LED1_TORCH_BRT_MAX 187100
  56 #define LM3646_LED1_TORCH_BRT_uA_TO_REG(a)      \
  57         ((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 : \
  58          ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)
  59
  60 /*  FLASH TIMEOUT DURATION
  61  *      min 50ms, step 50ms, max 400ms
  62  */
  63 #define LM3646_FLASH_TOUT_MIN 50
  64 #define LM3646_FLASH_TOUT_STEP 50
  65 #define LM3646_FLASH_TOUT_MAX 400
  66 #define LM3646_FLASH_TOUT_ms_TO_REG(a)  \
  67         ((a) <= LM3646_FLASH_TOUT_MIN ? 0 :     \
  68          (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))
  69
  70 /* struct lm3646_platform_data
  71  *
  72  * @flash_timeout: flash timeout
  73  * @led1_flash_brt: led1 flash mode brightness, uA
  74  * @led1_torch_brt: led1 torch mode brightness, uA
  75  */
  76 struct lm3646_platform_data {
  77
  78         u32 flash_timeout;
  79
  80         u32 led1_flash_brt;
  81         u32 led1_torch_brt;
  82 };
  83
  84 #endif /* __LM3646_H__ */