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#ifndef bcmutils_H
#define bcmutils_H
typedef struct
{
uint16_t magic;
uint16_t control;
uint16_t rev_maj;
uint16_t rev_min;
uint32_t build_date;
uint32_t filelen;
uint32_t ldaddress;
char filename[64];
uint16_t hcs;
uint16_t her_znaet_chto; //v dushe ne ebu
uint32_t crc;
} ldr_header_t;
/**
* Reverses endianess of a 32bit int, if the ENDIAN_REVERSE_NEEDED defined at compile-time
* @param data
* @return
*/
uint32_t reverse_endian32 ( uint32_t data );
/**
* Reverses endianess of a 16bit int, if the ENDIAN_REVERSE_NEEDED defined at compile-time
* @param data
* @return
*/
uint16_t reverse_endian16 ( uint16_t data );
/**
* Calculates the strange crc (used by bcm modems) of the file. Thnx fly out to Vector for the algorithm.
* @param filename
* @return
*/
uint32_t get_file_crc ( char* filename );
/**
* Calculates HCS of the header.
* @param hd
* @return
*/
uint16_t get_hcs ( ldr_header_t* hd );
/**
* Constructs the header of the image with the information given It also automagically calculates HCS and writes it there.
* @param magic - magic device bytes
* @param rev_maj - major revision
* @param rev_min - minor revision
* @param build_date - build date (seconds from EPOCH UTC)
* @param filelen - file length in bytes
* @param ldaddress - Load adress
* @param filename - filename
* @param crc_data - the crc of the data
* @return
*/
ldr_header_t* construct_header ( uint32_t magic, uint16_t rev_maj,uint16_t rev_min, uint32_t build_date, uint32_t filelen, uint32_t ldaddress, const char* filename, uint32_t crc_data );
/**
* Dumps header information to stdout.
* @param hd
*/
int dump_header ( ldr_header_t* hd );
/**
* Returns a null terminated string describing what the control number meens
* DO NOT FREE IT!!!
* @param control
* @return
*/
char* get_control_info ( uint16_t control );
#endif
/**
* Calculates bcmCRC of a data buffer.
* @param filebuffer - pointer to buffer
* @param size - buffer size
* @return
*/
uint32_t get_buffer_crc ( char* filebuffer, size_t size );
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