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  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __LM3560_H__
  26 #define __LM3560_H__
  27
  28 #include <media/v4l2-subdev.h>
  29
  30 #define LM3560_NAME     "lm3560"
  31 #define LM3560_I2C_ADDR (0x53)
  32
  33 /*  FLASH Brightness
  34  *      min 62500uA, step 62500uA, max 1000000uA
  35  */
  36 #define LM3560_FLASH_BRT_MIN 62500
  37 #define LM3560_FLASH_BRT_STEP 62500
  38 #define LM3560_FLASH_BRT_MAX 1000000
  39 #define LM3560_FLASH_BRT_uA_TO_REG(a)   \
  40         ((a) < LM3560_FLASH_BRT_MIN ? 0 :       \
  41          (((a) - LM3560_FLASH_BRT_MIN) / LM3560_FLASH_BRT_STEP))
  42 #define LM3560_FLASH_BRT_REG_TO_uA(a)           \
  43         ((a) * LM3560_FLASH_BRT_STEP + LM3560_FLASH_BRT_MIN)
  44
  45 /*  FLASH TIMEOUT DURATION
  46  *      min 32ms, step 32ms, max 1024ms
  47  */
  48 #define LM3560_FLASH_TOUT_MIN 32
  49 #define LM3560_FLASH_TOUT_STEP 32
  50 #define LM3560_FLASH_TOUT_MAX 1024
  51 #define LM3560_FLASH_TOUT_ms_TO_REG(a)  \
  52         ((a) < LM3560_FLASH_TOUT_MIN ? 0 :      \
  53          (((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP))
  54 #define LM3560_FLASH_TOUT_REG_TO_ms(a)          \
  55         ((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN)
  56
  57 /*  TORCH BRT
  58  *      min 31250uA, step 31250uA, max 250000uA
  59  */
  60 #define LM3560_TORCH_BRT_MIN 31250
  61 #define LM3560_TORCH_BRT_STEP 31250
  62 #define LM3560_TORCH_BRT_MAX 250000
  63 #define LM3560_TORCH_BRT_uA_TO_REG(a)   \
  64         ((a) < LM3560_TORCH_BRT_MIN ? 0 :       \
  65          (((a) - LM3560_TORCH_BRT_MIN) / LM3560_TORCH_BRT_STEP))
  66 #define LM3560_TORCH_BRT_REG_TO_uA(a)           \
  67         ((a) * LM3560_TORCH_BRT_STEP + LM3560_TORCH_BRT_MIN)
  68
  69 enum lm3560_led_id {
  70         LM3560_LED0 = 0,
  71         LM3560_LED1,
  72         LM3560_LED_MAX
  73 };
  74
  75 enum lm3560_peak_current {
  76         LM3560_PEAK_1600mA = 0x00,
  77         LM3560_PEAK_2300mA = 0x20,
  78         LM3560_PEAK_3000mA = 0x40,
  79         LM3560_PEAK_3600mA = 0x60
  80 };
  81
  82 /* struct lm3560_platform_data
  83  *
  84  * @peak :  peak current
  85  * @max_flash_timeout: flash timeout
  86  * @max_flash_brt: flash mode led brightness
  87  * @max_torch_brt: torch mode led brightness
  88  */
  89 struct lm3560_platform_data {
  90         enum lm3560_peak_current peak;
  91
  92         u32 max_flash_timeout;
  93         u32 max_flash_brt[LM3560_LED_MAX];
  94         u32 max_torch_brt[LM3560_LED_MAX];
  95 };
  96
  97 #endif /* __LM3560_H__ */