edge: Add bitvec based DL window updating methods

The current methods are based on the GRPS specific RBB and SSN values
and formats which are not compatible with EGPRS.

Add a second set of similar methods with the same semantics but
which are based on a bitvec and the first BSN instead.

The following methods are affected:

- gprs_rlc_dl_window::update
- gprs_rlcmac_dl_tbf::rcvd_dl_ack
- gprs_rlcmac_dl_tbf::update_window

Sponsored-by: On-Waves ehf

1 files changed, 4 insertions, 0 deletions

diff --git a/src/rlc.h b/src/rlc.h
index 76af4e10..3f599d47 100644
--- a/src/rlc.h
+++ b/src/rlc.h
@@ -32,6 +32,7 @@
 #define RLC_EGPRS_MAX_WS 1024 /* min window size */
 #define RLC_EGPRS_SNS 2048 /* EGPRS, must be power of 2 */
 #define RLC_MAX_SNS  RLC_EGPRS_SNS
+#define RLC_MAX_WS   RLC_EGPRS_MAX_WS
 #define RLC_MAX_LEN 74 /* MCS-9 data unit */
 
 struct BTS;
@@ -173,6 +174,9 @@ struct gprs_rlc_dl_window {
 	int mark_for_resend();
 	void update(BTS *bts, char *show_rbb, uint16_t ssn,
 			uint16_t *lost, uint16_t *received);
+	void update(BTS *bts, const struct bitvec *rbb,
+			uint16_t first_bsn, uint16_t *lost,
+			uint16_t *received);
 	int move_window();
 	void show_state(char *show_rbb);
 	int count_unacked();