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-rw-r--r--src/osmo-bts-trx/gsm0503_parity.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/osmo-bts-trx/gsm0503_parity.c b/src/osmo-bts-trx/gsm0503_parity.c
index ba2e144..65d3562 100644
--- a/src/osmo-bts-trx/gsm0503_parity.c
+++ b/src/osmo-bts-trx/gsm0503_parity.c
@@ -33,6 +33,29 @@ const struct osmo_crc16gen_code gsm0503_cs234_crc16 = {
.remainder = 0xffff,
};
+/*
+ * EDGE MCS header parity
+ *
+ */
+
+const struct osmo_crc8gen_code gsm0503_mcs_crc8_hdr = {
+ .bits = 8,
+ .poly = 0x49,
+ .init = 0x00,
+ .remainder = 0xff,
+};
+
+/*
+ * EDGE MCS data parity
+ *
+ */
+
+const struct osmo_crc16gen_code gsm0503_mcs_crc12 = {
+ .bits = 12,
+ .poly = 0x0d31,
+ .init = 0x0000,
+ .remainder = 0x0fff,
+};
/*
* GSM RACH parity