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-rw-r--r--include/osmocom/gsm/protocol/gsm_04_08.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/include/osmocom/gsm/protocol/gsm_04_08.h b/include/osmocom/gsm/protocol/gsm_04_08.h
index 3282bc16..4800b48b 100644
--- a/include/osmocom/gsm/protocol/gsm_04_08.h
+++ b/include/osmocom/gsm/protocol/gsm_04_08.h
@@ -1,6 +1,7 @@
#pragma once
#include <stdint.h>
+#include <stdbool.h>
#include <osmocom/core/utils.h>
@@ -469,11 +470,20 @@ struct gsm48_control_channel_descr {
uint8_t t3212;
} __attribute__ ((packed));
+enum gsm48_dtx_mode {
+ GSM48_DTX_MAY_BE_USED,
+ GSM48_DTX_SHALL_BE_USED,
+ GSM48_DTX_SHALL_NOT_BE_USED
+};
+
+/* Cell Options for SI6, SACCH (10.5.2.3a.2) or SI3, BCCH (Table 10.5.2.3.1),
+ 3GPP TS 44.018 */
struct gsm48_cell_options {
uint8_t radio_link_timeout:4,
dtx:2,
pwrc:1,
- spare:1;
+ /* either DN-IND or top bit of DTX IND */
+ d:1;
} __attribute__ ((packed));
/* Section 9.2.9 CM service request */
@@ -827,6 +837,9 @@ static inline uint8_t gsm48_hdr_msg_type_r99(const struct gsm48_hdr *hdr)
}
}
+void gsm48_set_dtx(struct gsm48_cell_options *op, enum gsm48_dtx_mode full,
+ enum gsm48_dtx_mode half, bool is_bcch);
+
#define gsm48_hdr_msg_type gsm48_hdr_msg_type_r99
/* Section 10.4 */