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/* Copyright 2020 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.
*/
/* Private sensor interface */
#ifndef __CROS_EC_FPC_PRIVATE_H
#define __CROS_EC_FPC_PRIVATE_H
#include <stdint.h>
typedef struct {
uint32_t num_defective_pixels;
} fp_sensor_info_t;
/**
* fp_sensor_maintenance runs a test for defective pixels and should
* be triggered periodically by the client. Internally, a defective
* pixel list is maintained and the algorithm will compensate for
* any defect pixels when matching towards a template.
*
* The defective pixel update will abort and return an error if any of
* the finger detect zones are covered. A client can call
* fp_sensor_finger_status to determine the current status.
*
* @param[in] image_data pointer to FP_SENSOR_IMAGE_SIZE bytes of memory
* @param[out] fp_sensor_info Structure containing output data.
*
* @return
* - 0 on success
* - negative value on error
*/
int fp_sensor_maintenance(uint8_t *image_data,
fp_sensor_info_t *fp_sensor_info);
/**
* Get the HWID of the sensor.
*
* @param id Pointer to where to store the HWID value. The HWID value here is
* the full 16 bits (contrast to FP_SENSOR_HWID where the lower four bits, which
* are a manufacturing id, are truncated).
* @return
* - EC_SUCCESS on success
* - EC_ERROR_INVAL or FP_ERROR_SPI_COMM on error
*/
int fpc_get_hwid(uint16_t *id);
#endif /* __CROS_EC_FPC_PRIVATE_H */
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