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__ */ 88