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/*
* Support for AD5823 VCM.
*
* Copyright (c) 2013 Intel Corporation. All Rights Reserved.
*
* 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 __AD5823_H__
#define __AD5823_H__
#include <linux/types.h>
#define AD5823_VCM_ADDR 0x0c
#define AD5823_REG_RESET 0x01
#define AD5823_REG_MODE 0x02
#define AD5823_REG_VCM_MOVE_TIME 0x03
#define AD5823_REG_VCM_CODE_MSB 0x04
#define AD5823_REG_VCM_CODE_LSB 0x05
#define AD5823_REG_VCM_THRESHOLD_MSB 0x06
#define AD5823_REG_VCM_THRESHOLD_LSB 0x07
#define AD5823_REG_LENGTH 0x1
#define AD5823_RING_CTRL_ENABLE 0x04
#define AD5823_RING_CTRL_DISABLE 0x00
#define AD5823_RESONANCE_PERIOD 100000
#define AD5823_RESONANCE_COEF 512
#define AD5823_HIGH_FREQ_RANGE 0x80
#define VCM_CODE_MSB_MASK 0xfc
#define AD5823_INIT_FOCUS_POS 350
enum ad5823_tok_type {
AD5823_8BIT = 0x1,
AD5823_16BIT = 0x2,
};
enum ad5823_vcm_mode {
AD5823_ARC_RES0 = 0x0, /* Actuator response control RES1 */
AD5823_ARC_RES1 = 0x1, /* Actuator response control RES0.5 */
AD5823_ARC_RES2 = 0x2, /* Actuator response control RES2 */
AD5823_ESRC = 0x3, /* Enhanced slew rate control */
AD5823_DIRECT = 0x4, /* Direct control */
};
#define AD5823_INVALID_CONFIG 0xffffffff
#define AD5823_MAX_FOCUS_POS 1023
#define DELAY_PER_STEP_NS 1000000
#define DELAY_MAX_PER_STEP_NS (1000000 * 1023)
#endif
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