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linux/include/media/i2c/lm3560.h

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[media] media: i2c: add driver for dual LED Flash, lm3560 Adds the driver for the LM3560, dual LED Flash The LM3560 has two 1A constant current driver for high current white LEDs. It is controlled via an I2C compatible interface(up to 400kHz). Each flash brightness, torch brightness and enable/disable can be controlled independantly, but flash timeout and operation mode are shared. Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 09:12:19 +02:00
/*
[media] include/media: split I2C headers from V4L2 core Currently, include/media is messy, as it contains both the V4L2 core headers and some driver-specific headers on the same place. That makes harder to identify what core headers should be documented and what headers belong to I2C drivers that are included only by bridge/main drivers that would require the functions provided by them. Let's move those i2c specific files to its own subdirectory. The files to move were produced via the following script: mkdir include/media/i2c (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) (cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/*/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done) for i in include/media/*.h; do n=`basename $i`; (for j in $(git grep -l $n); do dirname $j; done)|sort|uniq|grep -ve '^.$' > list; num=$(wc -l list|cut -d' ' -f1); if [ $num == 1 ]; then if [ "`grep i2c list`" != "" ]; then git mv $i include/media/i2c; fi; fi; done And the references corrected via this script: MAIN_DIR="media/" PREV_DIR="media/" DIRS="i2c/" echo "Checking affected files" >&2 for i in $DIRS; do for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do n=`basename $j` git grep -l $n done done|sort|uniq >files && ( echo "Handling files..." >&2; echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done"; ); echo "Handling documentation..." >&2; echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\"; ( cd include/$MAIN_DIR; for j in $DIRS; do for i in $(ls $j); do echo " perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\"; done; done; echo "cat > a && mv a \$i; done" ); ) >script && . ./script Merged Sakari Ailus patch that moves smiapp.h to include/media/i2c. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-10 15:01:44 +01:00
* include/media/i2c/lm3560.h
[media] media: i2c: add driver for dual LED Flash, lm3560 Adds the driver for the LM3560, dual LED Flash The LM3560 has two 1A constant current driver for high current white LEDs. It is controlled via an I2C compatible interface(up to 400kHz). Each flash brightness, torch brightness and enable/disable can be controlled independantly, but flash timeout and operation mode are shared. Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-16 09:12:19 +02:00
*
* Copyright (C) 2013 Texas Instruments
*
* Contact: Daniel Jeong <gshark.jeong@gmail.com>
* Ldd-Mlp <ldd-mlp@list.ti.com>
*
* 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.
*
*/
#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__ */
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