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/*
* decode_cch
*
* Decode a "common" control channel. Most control channels use
* the same burst, interleave, Viterbi and parity configuration.
* The documentation for the control channels defines SACCH first
* and then just keeps referring to that.
*
* The current (investigated) list is as follows:
*
* BCCH Norm
* BCCH Ext
* PCH
* AGCH
* CBCH (SDCCH/4)
* CBCH (SDCCH/8)
* SDCCH/4
* SACCH/C4
* SDCCH/8
* SACCH/C8
*
* We provide two functions, one for where all four bursts are
* contiguous, and one where they aren't.
*/
#define DATA_BLOCK_SIZE 184
#define PARITY_SIZE 40
#define FLUSH_BITS_SIZE 4
#define PARITY_OUTPUT_SIZE (DATA_BLOCK_SIZE + PARITY_SIZE + FLUSH_BITS_SIZE)
#define CONV_INPUT_SIZE PARITY_OUTPUT_SIZE
#define CONV_SIZE (2 * CONV_INPUT_SIZE)
#define BLOCKS 4
#define iBLOCK_SIZE (CONV_SIZE / BLOCKS)
#define eBLOCK_SIZE (iBLOCK_SIZE + 2)
int conv_decode(unsigned char *output, unsigned char *data);
int parity_check(unsigned char *data);
int compress_bits(unsigned char *dbuf, int dlen, unsigned char *src, int len);
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