/*
* include/media/lm3560.h
*
* Copyright (C) 2013 Texas Instruments
*
* Contact: Daniel Jeong <[email protected]>
* Ldd-Mlp <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/

#ifndef __LM3560_H__
#define __LM3560_H__

#include <media/v4l2-subdev.h>

#define LM3560_NAME "lm3560"
#define LM3560_I2C_ADDR (0x53)

/* FLASH Brightness
* min 62500uA, step 62500uA, max 1000000uA
*/
#define LM3560_FLASH_BRT_MIN 62500
#define LM3560_FLASH_BRT_STEP 62500
#define LM3560_FLASH_BRT_MAX 1000000
#define LM3560_FLASH_BRT_uA_TO_REG(a) \
((a) < LM3560_FLASH_BRT_MIN ? 0 : \
(((a) - LM3560_FLASH_BRT_MIN) / LM3560_FLASH_BRT_STEP))
#define LM3560_FLASH_BRT_REG_TO_uA(a) \
((a) * LM3560_FLASH_BRT_STEP + LM3560_FLASH_BRT_MIN)

/* FLASH TIMEOUT DURATION
* min 32ms, step 32ms, max 1024ms
*/
#define LM3560_FLASH_TOUT_MIN 32
#define LM3560_FLASH_TOUT_STEP 32
#define LM3560_FLASH_TOUT_MAX 1024
#define LM3560_FLASH_TOUT_ms_TO_REG(a) \
((a) < LM3560_FLASH_TOUT_MIN ? 0 : \
(((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP))
#define LM3560_FLASH_TOUT_REG_TO_ms(a) \
((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN)

/* TORCH BRT
* min 31250uA, step 31250uA, max 250000uA
*/
#define LM3560_TORCH_BRT_MIN 31250
#define LM3560_TORCH_BRT_STEP 31250
#define LM3560_TORCH_BRT_MAX 250000
#define LM3560_TORCH_BRT_uA_TO_REG(a) \
((a) < LM3560_TORCH_BRT_MIN ? 0 : \
(((a) - LM3560_TORCH_BRT_MIN) / LM3560_TORCH_BRT_STEP))
#define LM3560_TORCH_BRT_REG_TO_uA(a) \
((a) * LM3560_TORCH_BRT_STEP + LM3560_TORCH_BRT_MIN)

enum lm3560_led_id {
LM3560_LED0 = 0,
LM3560_LED1,
LM3560_LED_MAX
};

enum lm3560_peak_current {
LM3560_PEAK_1600mA = 0x00,
LM3560_PEAK_2300mA = 0x20,
LM3560_PEAK_3000mA = 0x40,
LM3560_PEAK_3600mA = 0x60
};

/* struct lm3560_platform_data
*
* @peak : peak current
* @max_flash_timeout: flash timeout
* @max_flash_brt: flash mode led brightness
* @max_torch_brt: torch mode led brightness
*/
struct lm3560_platform_data {
enum lm3560_peak_current peak;

u32 max_flash_timeout;
u32 max_flash_brt[LM3560_LED_MAX];
u32 max_torch_brt[LM3560_LED_MAX];
};

#endif /* __LM3560_H__ */