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/*
** Copyright 2012-2013 Intel Corporation
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
/*
* \file libtbd.h
* \brief Tagged Binary Data handling
*/
#ifndef __LIBTBD_H__
#define __LIBTBD_H__
#include <stddef.h> /* defines size_t */
#include <stdint.h> /* defines integer types with specified widths */
#include <stdio.h> /* defines FILE */
#ifdef __cplusplus
extern "C" {
#endif
/*!
* Revision of TBD System, format 0xYYMMDDVV, where:
* - YY: year,
* - MM: month,
* - DD: day,
* - VV: version ('01','02' etc.)
*/
#define IA_TBD_VERSION 0x12032201
/*!
* Revision of TBD data set, format 0xYYMMDDVV, where:
* - YY: year,
* - MM: month,
* - DD: day,
* - VV: version ('01','02' etc.)
*/
#define IA_TBD_REVISION 0x13091001
/*!
* \brief Error codes for libtbd.
*/
typedef enum
{
tbd_err_none = 0 , /*!< No errors */
tbd_err_general = (1 << 1), /*!< General error */
tbd_err_nomemory = (1 << 2), /*!< Out of memory */
tbd_err_data = (1 << 3), /*!< Corrupted data */
tbd_err_internal = (1 << 4), /*!< Error in code */
tbd_err_argument = (1 << 5) /*!< Invalid argument for a function */
} tbd_error_t;
/*!
* \brief Header structure for TBD container, followed by actual records.
*/
typedef struct
{
uint32_t tag; /*!< Tag identifier, also checks endianness */
uint32_t size; /*!< Container size including this header */
uint32_t version; /*!< Version of TBD system, format 0xYYMMDDVV */
uint32_t revision; /*!< Revision of TBD data set, format 0xYYMMDDVV */
uint32_t config_bits; /*!< Configuration flag bits set */
uint32_t checksum; /*!< Global checksum, header included */
} tbd_header_t;
/*!
* \brief Tag identifiers used in TBD container header.
*/
#define CHTOU32(a,b,c,d) ((uint32_t)(a)|((uint32_t)(b)<<8)|((uint32_t)(c)<<16)|((uint32_t)(d)<<24))
typedef enum
{
tbd_tag_cpff = CHTOU32('C','P','F','F'), /*!< CPF File */
tbd_tag_aiqb = CHTOU32('A','I','Q','B'), /*!< AIQ configuration */
tbd_tag_aiqd = CHTOU32('A','I','Q','D'), /*!< AIQ data */
tbd_tag_halb = CHTOU32('H','A','L','B'), /*!< CameraHAL configuration */
tbd_tag_drvb = CHTOU32('D','R','V','B') /*!< Sensor driver configuration */
} tbd_tag_t;
/*!
* \brief Record structure. Data is located right after this header.
*/
typedef struct
{
uint32_t size; /*!< Size of record including header */
uint8_t format_id; /*!< tbd_format_t enumeration values used */
uint8_t packing_key; /*!< Packing method; 0 = no packing */
uint16_t class_id; /*!< tbd_class_t enumeration values used */
} tbd_record_header_t;
/*!
* \brief Format ID enumeration describes the data format of the record.
*/
typedef enum
{
tbd_format_any = 0, /*!< Unspecified format */
tbd_format_custom, /*!< User specified format */
tbd_format_container /*!< Record is actually another TBD container */
} tbd_format_t;
/*!
* \brief Class ID enumeration describes the data class of the record.
*/
typedef enum
{
tbd_class_any = 0, /*!< Unspecified record class */
tbd_class_aiq, /*!< Used for AIC and 3A records */
tbd_class_drv, /*!< Used for driver records */
tbd_class_hal /*!< Used for HAL records */
} tbd_class_t;
/*!
* \brief Creates a new Tagged Binary Data container.
* Creates a new, empty Tagged Binary Data container with the tag
* that was given. Also updates the checksum and size accordingly.
* Note that the buffer size must be large enough for the header
* to fit in, the exact amount being 24 bytes (for tbd_header_t).
* @param[in] a_data_ptr Pointer to modifiable container buffer
* @param[in] a_data_size Size of the container buffer
* @param[in] a_tag Tag the container shall have
* @param[out] a_new_size Updated container size
* @return Return code indicating possible errors
*/
tbd_error_t tbd_create(void *a_data_ptr,
size_t a_data_size,
tbd_tag_t a_tag,
size_t *a_new_size);
/*!
* \brief Checks if Tagged Binary Data is valid. All tags are accepted.
* Performs number of checks to given Tagged Binary Data container,
* including the verification of the checksum. The function does not
* care about the tag type of the container.
* @param[in] a_data_ptr Pointer to container buffer
* @param[in] a_data_size Size of the container buffer
* @return Return code indicating possible errors
*/
tbd_error_t tbd_validate_anytag(void *a_data_ptr,
size_t a_data_size);
/*!
* \brief Checks if Tagged Binary Data is valid, and tagged properly.
* Performs number of checks to given Tagged Binary Data container,
* including the verification of the checksum. Also, the data must have
* been tagged properly. The tag is further used to check endianness,
* and if it seems wrong, a specific debug message is printed out.
* @param[in] a_data_ptr Pointer to container buffer
* @param[in] a_data_size Size of the container buffer
* @param[in] a_tag Tag the data must have
* @return Return code indicating possible errors
*/
tbd_error_t tbd_validate(void *a_data_ptr,
size_t a_data_size,
tbd_tag_t a_tag);
/*!
* \brief Finds a record of given kind from within the container.
* Checks if a given kind of record exists in the Tagged Binary Data,
* and if yes, tells the location of such record as well as its size.
* If there are multiple records that match the query, the indicated
* record is the first one.
* @param[in] a_data_ptr Pointer to container buffer
* @param[in] a_record_class Class the record must have
* @param[in] a_record_format Format the record must have
* @param[out] a_record_data Record data (or NULL if not found)
* @param[out] a_record_size Record size (or 0 if not found)
* @return Return code indicating possible errors
*/
tbd_error_t tbd_get_record(void *a_data_ptr,
tbd_class_t a_record_class,
tbd_format_t a_record_format,
void **a_record_data,
size_t *a_record_size);
/*!
* \brief Updates the Tagged Binary Data with the given record inserted.
* The given record is inserted into the Tagged Binary Data container
* that must exist already. New records are always added to the end,
* regardless if a record with the same class and format field already
* exists in the data. Also updates the checksum and size accordingly.
* Note that the buffer size must be large enough for the inserted
* record to fit in, the exact amount being the size of original
* Tagged Binary Data container plus the size of record data to be
* inserted plus 8 bytes (for tbd_record_header_t).
* @param[in] a_data_ptr Pointer to modifiable container buffer
* @param[in] a_data_size Size of buffer (surplus included)
* @param[in] a_record_class Class the record shall have
* @param[in] a_record_format Format the record shall have
* @param[in] a_record_data Record data
* @param[in] a_record_size Record size
* @param[out] a_new_size Updated container size
* @return Return code indicating possible errors
*/
tbd_error_t tbd_insert_record(void *a_data_ptr,
size_t a_data_size,
tbd_class_t a_record_class,
tbd_format_t a_record_format,
void *a_record_data,
size_t a_record_size,
size_t *a_new_size);
/*!
* \brief Updates the Tagged Binary Data with the given record removed.
* The indicated record is removed from the Tagged Binary Data, after
* which the checksum and size are updated accordingly. If there are
* multiple records that match the class and format, only the first
* instance is removed. If no record is found, nothing will be done.
* Note that the resulting Tagged Binary Data container will
* be smaller than the original, but it does not harm to store the
* resulting container in its original length, either.
* @param[in] a_data_ptr Pointer to modifiable container buffer
* @param[in] a_record_class Class the record should have
* @param[in] a_record_format Format the record should have
* @param[out] a_new_size Updated container size
* @return Return code indicating possible errors
*/
tbd_error_t tbd_remove_record(void *a_data_ptr,
tbd_class_t a_record_class,
tbd_format_t a_record_format,
size_t *a_new_size);
/*!
* \brief Writes all possible information about the Tagged Binary Data.
* Validates the Tagged Binary data container and generates a human
* readable detailed report on the content, including information about
* the records contained.
* @param[in] a_data_ptr Pointer to container buffer
* @param[in] a_data_size Size of the container buffer
* @param[in] a_outfile Pointer to open file (may be stdout)
* @return Return code indicating possible errors
*/
tbd_error_t tbd_infoprint(void *a_data_ptr,
size_t a_data_size,
FILE *a_outfile);
#ifdef __cplusplus
}
#endif
#endif /* __LIBTBD_H__ */