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22db44cb9c
This patch adds the driver for the as3645a LED flash controller. This controller supports a high power led in flash and torch modes and an indicator light, sometimes also called privacy light. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Nayden Kanchev <nkanchev@mm-sol.com> Signed-off-by: Tuukka Toivonen <tuukkat76@gmail.com> Signed-off-by: Antti Koskipaa <antti.koskipaa@gmail.com> Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com> Signed-off-by: Vimarsh Zutshi <vimarsh.zutshi@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com> Signed-off-by: David Cohen <dacohen@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
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* include/media/as3645a.h
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*
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* Copyright (C) 2008-2011 Nokia Corporation
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*
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* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __AS3645A_H__
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#define __AS3645A_H__
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#include <media/v4l2-subdev.h>
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#define AS3645A_NAME "as3645a"
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#define AS3645A_I2C_ADDR (0x60 >> 1) /* W:0x60, R:0x61 */
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#define AS3645A_FLASH_TIMEOUT_MIN 100000 /* us */
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#define AS3645A_FLASH_TIMEOUT_MAX 850000
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#define AS3645A_FLASH_TIMEOUT_STEP 50000
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#define AS3645A_FLASH_INTENSITY_MIN 200 /* mA */
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#define AS3645A_FLASH_INTENSITY_MAX_1LED 500
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#define AS3645A_FLASH_INTENSITY_MAX_2LEDS 400
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#define AS3645A_FLASH_INTENSITY_STEP 20
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#define AS3645A_TORCH_INTENSITY_MIN 20 /* mA */
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#define AS3645A_TORCH_INTENSITY_MAX 160
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#define AS3645A_TORCH_INTENSITY_STEP 20
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#define AS3645A_INDICATOR_INTENSITY_MIN 0 /* uA */
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#define AS3645A_INDICATOR_INTENSITY_MAX 10000
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#define AS3645A_INDICATOR_INTENSITY_STEP 2500
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/*
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* as3645a_platform_data - Flash controller platform data
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* @set_power: Set power callback
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* @vref: VREF offset (0=0V, 1=+0.3V, 2=-0.3V, 3=+0.6V)
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* @peak: Inductor peak current limit (0=1.25A, 1=1.5A, 2=1.75A, 3=2.0A)
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* @ext_strobe: True if external flash strobe can be used
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* @flash_max_current: Max flash current (mA, <= AS3645A_FLASH_INTENSITY_MAX)
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* @torch_max_current: Max torch current (mA, >= AS3645A_TORCH_INTENSITY_MAX)
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* @timeout_max: Max flash timeout (us, <= AS3645A_FLASH_TIMEOUT_MAX)
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*/
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struct as3645a_platform_data {
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int (*set_power)(struct v4l2_subdev *subdev, int on);
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unsigned int vref;
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unsigned int peak;
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bool ext_strobe;
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/* Flash and torch currents and timeout limits */
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unsigned int flash_max_current;
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unsigned int torch_max_current;
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unsigned int timeout_max;
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};
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#endif /* __AS3645A_H__ */
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