diff options
| author | Holger Hans Peter Freyther <holger@moiji-mobile.com> | 2013-11-26 21:43:58 +0100 |
|---|---|---|
| committer | Holger Hans Peter Freyther <holger@moiji-mobile.com> | 2013-11-26 21:43:58 +0100 |
| commit | 73257c550c6ee4f6c8a435f42c33e5c1d8a19dfa (patch) | |
| tree | 9bee603d74f0c440ba79bc26087396b082472be1 /src/encoding.cpp | |
| parent | 0b0b95d6fe05b8f0cdc3079fa767b3e76f70574f (diff) | |
rlc: Make the RLC types only operate on the BSN
The code has an internal optimization to only use window_size
space. This means that the caller needed to know that only half
of the size was used. Change the API to work on the BSN and do
the mapping internally. The compiler should have plenty of
opportunity to propagate the constant(s) but this has not been
verified.
Diffstat (limited to 'src/encoding.cpp')
| -rw-r--r-- | src/encoding.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/encoding.cpp b/src/encoding.cpp index 13390b90..24b5730a 100644 --- a/src/encoding.cpp +++ b/src/encoding.cpp @@ -363,7 +363,7 @@ void Encoding::write_packet_uplink_ack(struct gprs_rlcmac_bts *bts, uint8_t rbb = 0; uint16_t i, bbn; - uint16_t mod_sns_half = (tbf->sns() >> 1) - 1; + uint16_t mod_sns = (tbf->sns() >> 1); char bit; LOGP(DRLCMACUL, LOGL_DEBUG, "Encoding Ack/Nack for %s " @@ -383,8 +383,8 @@ void Encoding::write_packet_uplink_ack(struct gprs_rlcmac_bts *bts, block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Ack_Nack_Description.FINAL_ACK_INDICATION = final; // FINAL ACK INDICATION block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Ack_Nack_Description.STARTING_SEQUENCE_NUMBER = tbf->dir.ul.window.v_r(); // STARTING_SEQUENCE_NUMBER // RECEIVE_BLOCK_BITMAP - for (i = 0, bbn = (tbf->dir.ul.window.v_r() - 64) & mod_sns_half; i < 64; - i++, bbn = (bbn + 1) & mod_sns_half) { + for (i = 0, bbn = (tbf->dir.ul.window.v_r() - 64) & mod_sns; i < 64; + i++, bbn = (bbn + 1) & mod_sns) { bit = tbf->dir.ul.v_n.state(bbn); show_v_n[i] = bit; if (bit == 'R') |