fixeria has uploaded this change for review. ( 
https://gerrit.osmocom.org/c/osmocom-bb/+/30291 )


Change subject: trxcon: trx_data_rx_cb(): support parsing 8-PSK modulated bursts
......................................................................

trxcon: trx_data_rx_cb(): support parsing 8-PSK modulated bursts

Change-Id: I78b1a79c329299ab65eb339e9447a47382983cd9
---
M src/host/trxcon/src/trx_if.c
1 file changed, 6 insertions(+), 3 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/91/30291/1

diff --git a/src/host/trxcon/src/trx_if.c b/src/host/trxcon/src/trx_if.c
index c938fc0..078f71b 100644
--- a/src/host/trxcon/src/trx_if.c
+++ b/src/host/trxcon/src/trx_if.c
@@ -43,6 +43,9 @@
 #include <osmocom/bb/trxcon/trx_if.h>
 #include <osmocom/bb/trxcon/logging.h>

+#define TRXDv0_HDR_LEN         8
+#define GMSK_BURST_LEN         148
+
 #define S(x)   (1 << (x))

 static void trx_fsm_cleanup_cb(struct osmo_fsm_inst *fi,
@@ -642,7 +645,7 @@
                return read_len;
        }

-       if (read_len < (8 + 148)) { /* TRXDv0 header + GMSK burst */
+       if (read_len < (TRXDv0_HDR_LEN + GMSK_BURST_LEN)) {
                LOGPFSMSL(trx->fi, DTRXD, LOGL_ERROR,
                          "Got data message with invalid length '%zd'\n", 
read_len);
                return -EINVAL;
@@ -661,8 +664,8 @@
                .fn = osmo_load32be(buf + 1),
                .rssi = -(int8_t) buf[5],
                .toa256 = (int16_t) (buf[6] << 8) | buf[7],
-               .burst = burst,
-               .burst_len = 148,
+               .burst = burst, /* at least GMSK_BURST_LEN */
+               .burst_len = read_len - TRXDv0_HDR_LEN,
        };

        /* Convert ubits {254..0} to sbits {-127..127} in-place */

--
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Gerrit-Project: osmocom-bb
Gerrit-Branch: master
Gerrit-Change-Id: I78b1a79c329299ab65eb339e9447a47382983cd9
Gerrit-Change-Number: 30291
Gerrit-PatchSet: 1
Gerrit-Owner: fixeria <[email protected]>
Gerrit-MessageType: newchange

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