1/* 2 * Support for dw9719 vcm driver. 3 * 4 * Copyright (c) 2014 Intel Corporation. All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License version 8 * 2 as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 18 * 02110-1301, USA. 19 * 20 */ 21 22#ifndef __DW9718_H__ 23#define __DW9718_H__ 24 25#include "../../include/linux/atomisp_platform.h" 26#include <linux/types.h> 27 28#define DW9718_VCM_ADDR (0x18 >> 1) 29 30/* dw9718 device structure */ 31struct dw9718_device { 32 struct timespec timestamp_t_focus_abs; 33 s16 number_of_steps; 34 bool initialized; /* true if dw9718 is detected */ 35 s32 focus; /* Current focus value */ 36 struct timespec focus_time; /* Time when focus was last time set */ 37 __u8 buffer[4]; /* Used for i2c transactions */ 38 const struct camera_af_platform_data *platform_data; 39 __u8 power_on; 40}; 41 42#define DW9718_MAX_FOCUS_POS 1023 43 44/* Register addresses */ 45#define DW9718_PD 0x00 46#define DW9718_CONTROL 0x01 47#define DW9718_DATA_M 0x02 48#define DW9718_DATA_L 0x03 49#define DW9718_SW 0x04 50#define DW9718_SACT 0x05 51#define DW9718_FLAG 0x10 52 53#define DW9718_CONTROL_SW_LINEAR BIT(0) 54#define DW9718_CONTROL_S_SAC4 (BIT(1) | BIT(3)) 55#define DW9718_CONTROL_OCP_DISABLE BIT(4) 56#define DW9718_CONTROL_UVLO_DISABLE BIT(5) 57 58#define DW9718_SACT_MULT_TWO 0x00 59#define DW9718_SACT_PERIOD_8_8MS 0x19 60#define DW9718_SACT_DEFAULT_VAL 0x60 61 62#define DW9718_DEFAULT_FOCUS_POSITION 300 63 64#endif /* __DW9718_H__ */ 65