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Diffstat (limited to 'driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h')
| -rw-r--r-- | driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h b/driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h deleted file mode 100644 index 9c00b14640..0000000000 --- a/driver/fingerprint/fpc/libfp/fpc_bio_algorithm.h +++ /dev/null @@ -1,265 +0,0 @@ -/* Copyright 2016 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 BIOD_BIO_ALGORITHM_H_ -#define BIOD_BIO_ALGORITHM_H_ - -#include <stdint.h> - -enum bio_algorithm_type { - BIO_ALGORITHM_FINGERPRINT, - BIO_ALGORITHM_IRIS, -}; -/* - * An opaque pointer representing/uniquely identifying a sensor. - */ -typedef void *bio_sensor_t; -/* - * An opaque pointer representing an image (scan). - */ -typedef void *bio_image_t; -/* - * An opaque pointer representing/uniquely identifying an (serialized) enrolled - * template. - */ -typedef void *bio_template_t; -/* - * An opaque pointer representing/uniquely identifying enrollment attempt. - */ -typedef void *bio_enrollment_t; -/* - * Initializes biometric algorithm library. Should be the very first function - * to be invoked by the biometric daemon. - * - * Returns 0 on success, negative error code (such as -ENOMEM) on failure. - */ -int bio_algorithm_init(void); -/* - * Instructs the biometric library to release all resources in preparation - * for the process termination (or unloading the library). Regardless of - * the returned error code the action is considered unrecoverable. - * - * Returns 0 on success, negative error code (such as -ENOMEM) on failure. - */ -int bio_algorithm_exit(void); -/* - * Used to retrieve type of the algorithm library. Might be used by - * configuration processor module to match sensors and algorithm libraries. - */ -enum bio_algorithm_type bio_algorithm_get_type(void); -/* - * Used to retrieve name of the algorithm library, to be used in diagnostics. - * Also might be used by configuration processor module to match sensors and - * algorithm libraries. - */ -const char *bio_algorithm_get_name(void); -/* - * Used to retrieve version of the algorithm library, to be used in diagnostics. - */ -const char *bio_algorithm_get_version(void); -/* - * Used to retrieve additional information from the algorithm library, to be - * used in diagnostics. - */ -const char *bio_algorithm_get_banner(void); -/* - * Initializes a new sensor structure and returns its handle that will be used - * in other calls to identify the sensor involved in the operation. - * - * Returns 0 on success, negative error code (such as -ENOMEM) on failure. - */ -int bio_sensor_create(bio_sensor_t *sensor); -/* - * Releases all resources held by the library in conjunction with given sensor. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_sensor_destroy(bio_sensor_t sensor); -/* - * Communicates particulars of a given sensor so that algorithm library can - * adjust its behavior as needed. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_sensor_set_model(bio_sensor_t sensor, uint32_t vendor_id, - uint32_t product_id, uint32_t model_id, - uint32_t version); -/* - * Communicates format of data used by given sensor to the algorithm library. - * This is a fourcc value defined by V4L2 API. - * Could be a new define for biometric sensors or V4L2_PIX_FMT_GREY. - * Algorithm library will return error if it can not work with given format. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_sensor_set_format(bio_sensor_t sensor, uint32_t pixel_format); -/* - * Communicates dimensions of given sensor to the algorithm library. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_sensor_set_size(bio_sensor_t sensor, uint32_t width, uint32_t height); -/* - * Instructs the algorithm library to initialize a new structure to hold - * biometric image of given dimensions acquired from given sensor. - * It will return image handle that will be used in other calls to identify - * the image involved in the operation. - * - * Returns 0 on success, negative error code (such as -ENOMEM) on failure. - */ -int bio_image_create(bio_sensor_t sensor, uint32_t width, uint32_t height, - bio_image_t *image); -/* - * Communicates dimensions of image to the algorithm library. - * Can be used if image is less than full sensor resolution. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_image_set_size(bio_image_t image, uint32_t width, uint32_t height); -/* - * Attaches data from biometric sensor to image structure. The caller must - * ensure that there is enough of data for given image dimensions for given - * format used by the sensor. - * - * It is assumes that the data pointer stays valid until bio_image_destroy() - * is called. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_image_set_data(bio_image_t image, const uint8_t *data, size_t size); -/* - * Releases all resources held by the library in conjunction with given image. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_image_destroy(bio_image_t image); - -/* - * Compares given biometric image against a list of enrolled template(s). - * In case the image match a template the match_index will indicate which - * template in the list that matched. - * The algorithm library can update templates with additional biometric data - * from the image, if it chooses to do so. The updated template(s) will be - * indicated by the out parameter 'updated_templates', a bit-field where - * updated template(s) indicated by the corresponding bit being set - * Returns: - * - negative value on error - * - BIO_TEMPLATE_NO_MATCH on non-match - * - BIO_TEMPLATE_MATCH for match when template was not updated with new data - * - BIO_TEMPLATE_MATCH_UPDATED for match when template was updated - * - BIO_TEMPLATE_MATCH_UPDATE_FAILED match, but update failed (do not save) - * - BIO_TEMPLATE_LOW_QUALITY when matching could not be performed due to low - * image quality - * - BIO_TEMPLATE_LOW_COVERAGE when matching could not be performed due to - * finger covering too little area of the sensor - */ -int bio_template_image_match_list(bio_template_t tmpl, uint32_t num_templates, - bio_image_t image, int32_t *match_index, - uint32_t *updated_templates); -int bio_template_image_match(bio_template_t tmpl, bio_image_t image); -/* - * Returns size of template data in serialized form. - * - * Returns negative error code (such as -EINVAL) on failure, or size of the - * serialized form in bytes. - */ -ssize_t bio_template_get_serialized_size(bio_template_t tmpl); -/* - * Releases all resources held by the library in conjunction with given - * template. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_template_destroy(bio_template_t tmpl); -/* - * Initiates biometric data enrollment process. Algorithm library returns - * 'enrollment handle' that is used for all subsequent enrollment operations. - * - * Returns 0 on success, negative error code (such as -ENOMEM) on failure. - */ -int bio_enrollment_begin(bio_sensor_t sensor, bio_enrollment_t *enrollment); -/* - * Adds fingerprint image to an enrollment. - * - * The library should expect to copy any relevant data from the “image” - * as it is likely to be destroyed (via bio_image_destroy() call) shortly after - * this call completes. - * - * Returns: - * - negative value on error - * - BIO_ENROLLMENT_OK when image was successfully enrolled - * - BIO_ENROLLMENT_IMMOBILE when image added, but user should be advised - * to move finger - * - BIO_ENROLLMENT_LOW_QUALITY when image could not be used due to low - * image quality - * - BIO_ENROLLMENT_LOW_COVERAGE when image could not be used due to - * finger covering too little area of the sensor - */ -#define BIO_ENROLLMENT_OK 0 -#define BIO_ENROLLMENT_IMMOBILE 2 -#define BIO_ENROLLMENT_LOW_QUALITY 1 -#define BIO_ENROLLMENT_LOW_COVERAGE 3 -/* Can be used to detect if image was usable for enrollment or not. */ -#define BIO_ENROLLMENT_PROBLEM_MASK 1 -int bio_enrollment_add_image(bio_enrollment_t enrollment, bio_image_t image); -/* - * Indicates whether there is enough data in the enrollment for it to be - * converted into a template to be used for identification. - * - * Returns 0 for if enrollment does not have enough data yet, 1 if enrollment - * is complete, or negative error code (such as -EINVAL) on failure. - * - */ -int bio_enrollment_is_complete(bio_enrollment_t enrollment); -/* - * Returns percent of coverage accumulated during enrollment process. - * Optional method. Regardless of value returned by this call user should call - * bio_enrollment_is_complete() to check if algorithm library accumulated enough - * data to create a template. - * - * Returns value in the range 0..100, or negative error (such as -EINVAL); - */ -int bio_enrollment_get_percent_complete(bio_enrollment_t enrollment); -/* - * Indicates that given enrollment process is complete, and algorithm library - * should generate an active template that can be used in subsequent calls - * to bio_image_match() and bio_template_serialize() from enrollment data. - * After the template is created the library should release all resources - * associated with this enrollment. - * - * Argument 'tmpl' is optional and can be set to NULL if caller wishes to - * abort enrollment process. - * - * Returns 0 on success, negative error code (such as -EINVAL) on failure. - */ -int bio_enrollment_finish(bio_enrollment_t enrollment, bio_template_t *tmpl); - -typedef struct { - int32_t coverage; /* Sensor coverage in range [0..100] */ - int32_t quality; /* Image quality in range [0..100] */ - int32_t min_coverage; /* Minimum coverage accepted by enroll */ - int32_t min_quality; /* Minimum image quality accepted by enroll */ -} bio_image_status_t; - -/* - * Get the image quality and threshold values for a bio_image_t - * - * @param[in] image Image data as acquired by - * fp_sensor_acquire_image_with_mode - * @param[out] image_status Populated structure with quality/coverage values - * and corresponding threshold values - * - * @note This function will alter the internal states of the bio algorithm - * library and must not be used during an enroll sequence. The typical - * use case for this function is to qualify images during image - * collection. - * - * @return negative on error. - * @return 0 if the quality and coverage threshold values aren't reached. - * @return 1 if the quality and coverage threshold values are reached. - */ -int bio_sensor_get_image_status(bio_image_t image, - bio_image_status_t *image_status); - -#endif /* BIOD_BIO_ALGORITHM_H_ */ |