diff options
Diffstat (limited to 'src/rlc.cpp')
| -rw-r--r-- | src/rlc.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/rlc.cpp b/src/rlc.cpp index f6b13623..d33e2067 100644 --- a/src/rlc.cpp +++ b/src/rlc.cpp @@ -17,6 +17,8 @@ */ #include "tbf.h" +#include "bts.h" +#include "gprs_debug.h" extern "C" { #include <osmocom/core/utils.h> @@ -68,3 +70,30 @@ int gprs_rlc_v_b::mark_for_resend(const uint16_t v_a, const uint16_t v_s, return resend; } + +void gprs_rlc_v_b::update(BTS *bts, char *show_rbb, uint8_t ssn, + const uint16_t v_a, + const uint16_t mod_sns, const uint16_t mod_sns_half, + uint16_t *lost, uint16_t *received) +{ + uint16_t bsn; + int i; + + /* SSN - 1 is in range V(A)..V(S)-1 */ + for (i = 63, bsn = (ssn - 1) & mod_sns; + i >= 0 && bsn != ((v_a - 1) & mod_sns); + i--, bsn = (bsn - 1) & mod_sns) { + + if (show_rbb[i] == '1') { + LOGP(DRLCMACDL, LOGL_DEBUG, "- got ack for BSN=%d\n", bsn); + if (!is_acked(bsn & mod_sns_half)) + *received += 1; + mark_acked(bsn & mod_sns_half); + } else { + LOGP(DRLCMACDL, LOGL_DEBUG, "- got NACK for BSN=%d\n", bsn); + mark_nacked(bsn & mod_sns_half); + bts->rlc_nacked(); + *lost += 1; + } + } +} |