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-rw-r--r--include/osmocom/gsm/protocol/gsm_08_08.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_08_08.h b/include/osmocom/gsm/protocol/gsm_08_08.h
index 2162c2a0..268064fc 100644
--- a/include/osmocom/gsm/protocol/gsm_08_08.h
+++ b/include/osmocom/gsm/protocol/gsm_08_08.h
@@ -52,7 +52,7 @@ struct dtap_header {
#if OSMO_IS_LITTLE_ENDIAN
uint8_t dlci_sapi:3, /* enum gsm0406_dlci_sapi */
dlci_spare:3,
- dlci_cc:2;
+ dlci_cc:2; /* enum gsm0808_dlci_cc */
#elif OSMO_IS_BIG_ENDIAN
/* auto-generated from the little endian part above (libosmocore/contrib/struct_endianess.py) */
uint8_t dlci_cc:2, dlci_spare:3, dlci_sapi:3;
@@ -62,6 +62,13 @@ struct dtap_header {
uint8_t length;
} __attribute__((packed));
+/* 3GPP TS 48.006 9.3.2 "Transfer of DTAP messages", C2C1 bits */
+enum gsm0808_dlci_cc {
+ DLCI_CC_UNSPEC = 0,
+ DLCI_CC_FACCH_SDCCH = 2,
+ DLCI_CC_SACCH = 3,
+};
+
/* Data Link Control SAPI, GSM 08.06 § 6.3.2, GSM 04.06 § 3.3.3 */
enum gsm0406_dlci_sapi {
DLCI_SAPI_RR_MM_CC = 0x0,