| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * 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 |
