[PATCH] osmo-pcu[master]: Add data structure to for split block in EGPRS UL

[arvind.sirsikar]

Review at  https://gerrit.osmocom.org/536

Add data structure to for split block in EGPRS UL

Modify header files with data structures required
to support split blocks for EGPRS UL TBF

Change-Id: I83ccd136bb361adcfd511c57c5a9d95ed72c36c2
---
M src/rlc.h
1 file changed, 26 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/36/536/1

diff --git a/src/rlc.h b/src/rlc.h
index 082db89..07bc121 100644
--- a/src/rlc.h
+++ b/src/rlc.h
@@ -55,6 +55,21 @@
 	GPRS_RLC_DL_BSN_MAX,
 };
 
+/* EGPRS resegment status information for UL
+ * When only first split block is received bsn state
+ * will be set to EGPRS_RESEG_FIRST_SEG_RXD and when
+ * only second segment is received the state will be
+ * set to EGPRS_RESEG_SECOND_SEG_RXD. When both Split
+ * blocks are received the state will be set to
+ * EGPRS_RESEG_DEFAULT
+*/
+enum egprs_rlc_ul_reseg_bsn_state {
+	EGPRS_RESEG_DEFAULT = 0,
+	EGPRS_RESEG_FIRST_SEG_RXD = 0x01,
+	EGPRS_RESEG_SECOND_SEG_RXD = 0x02,
+	EGPRS_RESEG_INVALID
+};
+
 /*
  * Valid puncturing scheme values
  * TS 44.060 10.4.8a.3.1, 10.4.8a.2.1, 10.4.8a.1.1
@@ -109,6 +124,14 @@
 	struct gprs_rlc_data_block_info block_info[2];
 };
 
+/* holds the current status of the block w.r.t UL/DL split blocks */
+union split_block_status {
+	egprs_rlc_ul_reseg_bsn_state block_status_ul;
+	/* TODO: DL split block status need to be supported
+	 * for EGPRS DL
+	*/
+};
+
 struct gprs_rlc_data {
 	uint8_t *prepare(size_t block_data_length);
 	void put_data(const uint8_t *data, size_t len);
@@ -133,6 +156,9 @@
 
 	/* puncturing scheme value to be used for next transmission*/
 	enum egprs_puncturing_values next_ps;
+
+	/* holds the current status of the block w.r.t UL/DL split blocks*/
+	union split_block_status spb_status_current;
 };
 
 void gprs_rlc_data_info_init_dl(struct gprs_rlc_data_info *rlc,

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I83ccd136bb361adcfd511c57c5a9d95ed72c36c2
Gerrit-PatchSet: 1
Gerrit-Project: osmo-pcu
Gerrit-Branch: master
Gerrit-Owner: arvind.sirsikar <arvind.sirsikar at radisys.com>