paulmataruso/osmo-mgw
1
0
Fork 0
mirror of https://gitea.osmocom.org/cellular-infrastructure/osmo-mgw.git synced 2025-10-23 08:12:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

[bssap] Set the right GSM08.08 speech version indicator

Browse Source 
* For half rate we also need to set the 3rd bit to one
* See GSM08.08 §3.2.2.51 and then §3.2.2.11
This commit is contained in:
Holger Hans Peter Freyther
2010-01-05 04:18:16 +01:00
parent cba98d87d6
commit 7d3ef919ce
1 changed files with 13 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
openbsc/src/bssap.c
View File

@@ -724,17 +724,19 @@ struct msgb *bssmap_create_sapi_reject(u_int8_t link_id)
return msg;
}
static u_int8_t chan_mode_to_speech(enum gsm48_chan_mode mode)
static u_int8_t chan_mode_to_speech(struct gsm_lchan *lchan)
{
switch (mode) {
int mode = 0;
switch (lchan->tch_mode) {
case GSM48_CMODE_SPEECH_V1:
return 1;
mode = 1;
break;
case GSM48_CMODE_SPEECH_EFR:
return 0x11;
mode = 0x11;
break;
case GSM48_CMODE_SPEECH_AMR:
return 0x21;
mode = 0x21;
break;
case GSM48_CMODE_SIGN:
case GSM48_CMODE_DATA_14k5:
@@ -746,6 +748,11 @@ static u_int8_t chan_mode_to_speech(enum gsm48_chan_mode mode)
return 0;
break;
}
if (lchan->type == GSM_LCHAN_TCH_H)
mode |= 0x4;
return mode;
}
/* 3.2.2.33 */
@@ -830,7 +837,7 @@ struct msgb *bssmap_create_assignment_completed(struct gsm_lchan *lchan, u_int8_
/* write circuit pool 3.2.2.45 */
/* write speech version chosen: 3.2.2.51 when BTS picked it */
speech_mode = chan_mode_to_speech(lchan->tch_mode);
speech_mode = chan_mode_to_speech(lchan);
if (speech_mode != 0) {
data = msgb_put(msg, 2);
data[0] = GSM0808_IE_SPEECH_VERSION;