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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef ELAN_SETTING_H
#define ELAN_SETTING_H
#include <stdint.h>
/* The hardware ID information and FW version */
#define VID 0x04F3
#define PID 0x0903
#define MID 0x01
#define VERSION 0x100B
/* SPI tx and rx buffer size */
#define CONFIG_SPI_TX_BUF_SIZE 1024
#define CONFIG_SPI_RX_BUF_SIZE 5120
/**
* Elan sensor operation is controlled by sending commands and receiving
* through the SPI interface. There are several SPI command codes for
* controlling FP sensor:
*
* - START_SCAN Start scan
* - START_READ_IMAGE Start read the image
* - SRST Software reset
* - FUSE_LOAD Load OTP trims data to control registers
* - READ_REG_HEAD Register single read
* - WRITE_REG_HEAD Register burst write
* - READ_SERIER_REG_HEAD Register burst read
* - PAGE_SEL Register page selection
* - SENSOR_STATUS Read sensor status
*/
#define START_SCAN 0x01
#define START_READ_IMAGE 0x10
#define SRST 0x31
#define FUSE_LOAD 0x04
#define READ_REG_HEAD 0x40
#define WRITE_REG_HEAD 0x80
#define READ_SERIER_REG_HEAD 0xC0
#define PAGE_SEL 0x07
#define SENSOR_STATUS 0x03
/* Sensor type name */
#define EFSA515 1
#define EFSA80SC 2
#if defined(CONFIG_FP_SENSOR_ELAN80)
#define IC_SELECTION EFSA80SC
#elif defined(CONFIG_FP_SENSOR_ELAN515)
#define IC_SELECTION EFSA515
#endif
/* Sensor pixel resolution */
#if (IC_SELECTION == EFSA80SC)
#define IMAGE_WIDTH 80
#define IMAGE_HEIGHT 80
#elif (IC_SELECTION == EFSA515)
#define IMAGE_WIDTH 150
#define IMAGE_HEIGHT 52
#endif
/**
* Sensor real image size:
* ((IMAGE_HEIGHT * ONE_PIXEL_BYTE) + FP_DUMMY_BYTE) * IMAGE_WIDTH
*/
#define FP_DUMMY_BYTE 2
#define ONE_PIXEL_BYTE 2
#define IMAGE_TOTAL_PIXEL (IMAGE_WIDTH * IMAGE_HEIGHT)
#define RAW_PIXEL_SIZE (IMAGE_HEIGHT * ONE_PIXEL_BYTE)
#define RAW_DATA_SIZE (RAW_PIXEL_SIZE + FP_DUMMY_BYTE)
#define IMG_BUF_SIZE (RAW_DATA_SIZE * IMAGE_WIDTH)
/* Polling scan status counter */
#define POLLING_SCAN_TIMER 10000
/* Re-calibration timer */
#define REK_TIMES 3
/* Console output macros */
#define LOGE_SA(format, args...) cprints(CC_FP, format, ##args)
/**
* Set ELAN fingerprint sensor register initialization
*
* @return 0 on success.
* negative value on error.
*/
int register_initialization(void);
/**
* To calibrate ELAN fingerprint sensor and keep the calibration results
* for correcting fingerprint image data
*
* @return 0 on success.
* negative value on error.
*/
int calibration(void);
#endif /* _ELAN_SETTING_H */
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