diff options
Diffstat (limited to 'src/coding/gsm0503_parity.c')
| -rw-r--r-- | src/coding/gsm0503_parity.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/coding/gsm0503_parity.c b/src/coding/gsm0503_parity.c index 874114ff..a8daacc7 100644 --- a/src/coding/gsm0503_parity.c +++ b/src/coding/gsm0503_parity.c @@ -134,4 +134,15 @@ const struct osmo_crc8gen_code gsm0503_amr_crc6 = { .remainder = 0x3f, }; +/*! GSM AMR parity (SID_UPDATE) + * + * g(x) = x^14 + x^13 + x^5 + x^3 + x^2 + 1 + */ +const struct osmo_crc16gen_code gsm0503_amr_crc14 = { + .bits = 14, + .poly = 0x202d, + .init = 0x0000, + .remainder = 0x3fff, +}; + /*! @} */ |