62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Support for dw9719 vcm driver.
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*
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* Copyright (c) 2014 Intel Corporation. All Rights Reserved.
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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 version
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* 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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*/
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#ifndef __DW9718_H__
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#define __DW9718_H__
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#include <linux/atomisp_platform.h>
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#include <linux/types.h>
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#define DW9718_VCM_ADDR (0x18 >> 1)
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/* dw9718 device structure */
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struct dw9718_device {
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struct timespec timestamp_t_focus_abs;
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s16 number_of_steps;
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bool initialized; /* true if dw9718 is detected */
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s32 focus; /* Current focus value */
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struct timespec focus_time; /* Time when focus was last time set */
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__u8 buffer[4]; /* Used for i2c transactions */
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const struct camera_af_platform_data *platform_data;
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};
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#define DW9718_MAX_FOCUS_POS 1023
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/* Register addresses */
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#define DW9718_PD 0x00
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#define DW9718_CONTROL 0x01
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#define DW9718_DATA_M 0x02
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#define DW9718_DATA_L 0x03
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#define DW9718_SW 0x04
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#define DW9718_SACT 0x05
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#define DW9718_FLAG 0x10
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#define DW9718_CONTROL_SW_LINEAR BIT(0)
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#define DW9718_CONTROL_S_SAC4 (BIT(1) | BIT(3))
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#define DW9718_CONTROL_OCP_DISABLE BIT(4)
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#define DW9718_CONTROL_UVLO_DISABLE BIT(5)
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#define DW9718_SACT_MULT_TWO 0x00
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#define DW9718_SACT_PERIOD_8_8MS 0x19
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#define DW9718_SACT_DEFAULT_VAL 0x60
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#endif /* __DW9718_H__ */
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