GPRS: Add Support for the GPRS Cell Option Extension Info IE
Extension Information is part of the GPRS Cell Options IE, as
specified in Chapter 12.24 of TS 04.60. It is needed for
indicating EDGE capabilities of the BTS to the MS.
This simply adds the code to encode this IE as part of SI13,
but does not actually use the code yet.
diff --git a/openbsc/src/rest_octets.c b/openbsc/src/rest_octets.c
index df27cf2..0aac8d5 100644
--- a/openbsc/src/rest_octets.c
+++ b/openbsc/src/rest_octets.c
@@ -319,8 +319,31 @@
/* hard-code no PAN_{DEC,INC,MAX} */
bitvec_set_bit(bv, 0);
- /* no extension information (EDGE) */
- bitvec_set_bit(bv, 0);
+ if (!gco->ext_info_present) {
+ /* no extension information */
+ bitvec_set_bit(bv, 0);
+ } else {
+ /* extension information */
+ bitvec_set_bit(bv, 1);
+ if (!gco->ext_info.egprs_supported) {
+ /* 6bit length of extension */
+ bitvec_set_uint(bv, 1 + 3, 6);
+ /* EGPRS supported in the cell */
+ bitvec_set_bit(bv, 0);
+ } else {
+ /* 6bit length of extension */
+ bitvec_set_uint(bv, 1 + 5 + 3, 6);
+ /* EGPRS supported in the cell */
+ bitvec_set_bit(bv, 1);
+ /* 1bit EGPRS PACKET CHANNEL REQUEST */
+ bitvec_set_bit(bv, gco->ext_info.use_egprs_p_ch_req);
+ /* 4bit BEP PERIOD */
+ bitvec_set_uint(bv, gco->ext_info.bep_period, 4);
+ }
+ bitvec_set_bit(bv, gco->ext_info.pfc_supported);
+ bitvec_set_bit(bv, gco->ext_info.dtm_supported);
+ bitvec_set_bit(bv, gco->ext_info.bss_paging_coordination);
+ }
return 0;
}