Merge branch 'jolly_new'
Merge is based on jolly_new branch with two modifications.
1. Modified PCU L1 interface.
pcu_l1_if.cpp - common functions for tx and rx messages on L1 interface.
sysmo_sock.cpp - SYSMO-PCU socket functions.
openbts_sock.cpp - OpenBTS-PCU socket functions.
pcuif_proto.h - L1 interface's primitives.
2. Modified encoding of RLC/MAC Control messages, now we use structures and encode_gsm_rlcmac_downlink() function for encode control blocks (without hand-coding).
diff --git a/configure.ac b/configure.ac
index 9fe9fdd..c572c88 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,7 +24,7 @@
PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.3.9)
PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty)
PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.3.3)
-PKG_CHECK_MODULES(LIBOSMOGB, libosmogb >= 0.5.2)
+PKG_CHECK_MODULES(LIBOSMOGB, libosmogb >= 0.5.1.4)
AC_MSG_CHECKING([whether to enable sysmocom-bts hardware support])
AC_ARG_ENABLE(sysmocom-bts,
diff --git a/src/Makefile.am b/src/Makefile.am
index 78c01e1..ca586fd 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -32,14 +32,15 @@
gprs_rlcmac_data.cpp \
gprs_rlcmac_sched.cpp \
gsm_timer.cpp \
- bitvector.cpp
+ bitvector.cpp \
+ pcu_l1_if.cpp
if ENABLE_SYSMOBTS
libgprs_la_SOURCES += \
- sysmo_l1_if.cpp
+ sysmo_sock.cpp
else
libgprs_la_SOURCES += \
- pcu_l1_if.cpp
+ openbts_sock.cpp
endif
noinst_PROGRAMS = \
@@ -52,6 +53,7 @@
gsm_rlcmac.h \
gprs_bssgp_pcu.h \
gprs_rlcmac.h \
+ pcuif_proto.h \
pcu_l1_if.h \
gsm_timer.h \
bitvector.h
diff --git a/src/gprs_bssgp_pcu.cpp b/src/gprs_bssgp_pcu.cpp
index 733d4e2..f9a421a 100644
--- a/src/gprs_bssgp_pcu.cpp
+++ b/src/gprs_bssgp_pcu.cpp
@@ -30,6 +30,7 @@
int gprs_bssgp_pcu_rx_dl_ud(struct msgb *msg, struct tlv_parsed *tp)
{
struct bssgp_ud_hdr *budh;
+
int tfi;
uint32_t tlli;
int i, j;
@@ -41,6 +42,10 @@
budh = (struct bssgp_ud_hdr *)msgb_bssgph(msg);
tlli = ntohl(budh->tlli);
+ if (!tbf)
+ {
+ return -1;
+ }
/* LLC_PDU is mandatory IE */
if (!TLVP_PRESENT(tp, BSSGP_IE_LLC_PDU))
{
@@ -127,6 +132,7 @@
return 0;
}
+
/* Receive a BSSGP PDU from a BSS on a PTP BVCI */
int gprs_bssgp_pcu_rx_ptp(struct msgb *msg, struct tlv_parsed *tp, struct bssgp_bvc_ctx *bctx)
{
diff --git a/src/gprs_rlcmac.cpp b/src/gprs_rlcmac.cpp
index 7d28de1..9d2601c 100644
--- a/src/gprs_rlcmac.cpp
+++ b/src/gprs_rlcmac.cpp
@@ -21,7 +21,6 @@
#include <gprs_bssgp_pcu.h>
#include <pcu_l1_if.h>
#include <gprs_rlcmac.h>
-#include <gsmL1prim.h>
LLIST_HEAD(gprs_rlcmac_tbfs);
void *rlcmac_tall_ctx;
@@ -247,7 +246,7 @@
switch (tbf->fT) {
case 0:
-hier alles überdenken
+hier alles berdenken
// This is timer for delay RLC/MAC data sending after Downlink Immediate Assignment on CCCH.
gprs_rlcmac_segment_llc_pdu(tbf);
LOGP(DRLCMAC, LOGL_NOTICE, "TBF: [DOWNLINK] END TFI: %u TLLI: 0x%08x \n", tbf->tfi, tbf->tlli);
@@ -485,66 +484,79 @@
// bitvec_write_field(dest, wp,0x0,1); // Measurement Mapping struct not present
}
+
/* generate downlink assignment */
-void write_packet_downlink_assignment(bitvec * dest, uint8_t old_tfi,
+void write_packet_downlink_assignment(RlcMacDownlink_t * block, uint8_t old_tfi,
uint8_t old_downlink, uint8_t new_tfi, uint16_t arfcn,
uint8_t tn, uint8_t ta, uint8_t tsc, uint8_t poll)
{
- // TODO We should use our implementation of encode RLC/MAC Control messages.
- unsigned wp = 0;
+ // Packet downlink assignment TS 44.060 11.2.7
+
int i;
- bitvec_write_field(dest, wp,0x1,2); // Payload Type
- bitvec_write_field(dest, wp,0x0,2); // Uplink block with TDMA framenumber (FN+13)
- bitvec_write_field(dest, wp,poll,1); // Suppl/Polling Bit
- bitvec_write_field(dest, wp,0x0,3); // Uplink state flag
- bitvec_write_field(dest, wp,0x2,6); // MESSAGE TYPE
- bitvec_write_field(dest, wp,0x0,2); // Page Mode
- bitvec_write_field(dest, wp,0x0,1); // switch PERSIST_LEVEL: off
- bitvec_write_field(dest, wp,0x0,1); // switch TFI : on
- bitvec_write_field(dest, wp,old_downlink,1); // 0=UPLINK TFI, 1=DL TFI
- bitvec_write_field(dest, wp,old_tfi,5); // TFI
+ block->PAYLOAD_TYPE = 0x1; // RLC/MAC control block that does not include the optional octets of the RLC/MAC control header
+ block->RRBP = 0x0; // N+13
+ block->SP = poll; // RRBP field is valid
+ block->USF = 0x0; // Uplink state flag
- bitvec_write_field(dest, wp,0x0,1); // Message escape
- bitvec_write_field(dest, wp,0x0,2); // Medium Access Method: Dynamic Allocation
- bitvec_write_field(dest, wp,0x0,1); // RLC acknowledged mode
+ block->u.Packet_Downlink_Assignment.MESSAGE_TYPE = 0x2; // Packet Downlink Assignment
+ block->u.Packet_Downlink_Assignment.PAGE_MODE = 0x0; // Normal Paging
- bitvec_write_field(dest, wp,old_downlink,1); // the network establishes no new downlink TBF for the mobile station
- bitvec_write_field(dest, wp,0x80 >> tn,8); // timeslot(s)
+ block->u.Packet_Downlink_Assignment.Exist_PERSISTENCE_LEVEL = 0x0; // PERSISTENCE_LEVEL: off
- bitvec_write_field(dest, wp,0x1,1); // switch TIMING_ADVANCE_VALUE = on
- bitvec_write_field(dest, wp,ta,6); // TIMING_ADVANCE_VALUE
- bitvec_write_field(dest, wp,0x0,1); // switch TIMING_ADVANCE_INDEX = off
+ block->u.Packet_Downlink_Assignment.ID.UnionType = 0x0; // TFI = on
+ block->u.Packet_Downlink_Assignment.ID.u.Global_TFI.UnionType = old_downlink; // 0=UPLINK TFI, 1=DL TFI
+ block->u.Packet_Downlink_Assignment.ID.u.Global_TFI.u.UPLINK_TFI = old_tfi; // TFI
- bitvec_write_field(dest, wp,0x0,1); // switch POWER CONTROL = off
- bitvec_write_field(dest, wp,0x1,1); // Frequency Parameters information elements = present
+ block->u.Packet_Downlink_Assignment.MAC_MODE = 0x0; // Dynamic Allocation
+ block->u.Packet_Downlink_Assignment.RLC_MODE = 0x0; // RLC acknowledged mode
+ block->u.Packet_Downlink_Assignment.CONTROL_ACK = old_downlink; // NW establishes no new DL TBF for the MS with running timer T3192
+ block->u.Packet_Downlink_Assignment.TIMESLOT_ALLOCATION = 0x80 >> tn; // timeslot(s)
- bitvec_write_field(dest, wp,tsc,3); // Training Sequence Code (TSC) = 2
- bitvec_write_field(dest, wp,0x0,2); // ARFCN = present
- bitvec_write_field(dest, wp,arfcn,10); // ARFCN
+ block->u.Packet_Downlink_Assignment.Packet_Timing_Advance.Exist_TIMING_ADVANCE_VALUE = 0x1; // TIMING_ADVANCE_VALUE = on
+ block->u.Packet_Downlink_Assignment.Packet_Timing_Advance.TIMING_ADVANCE_VALUE = ta; // TIMING_ADVANCE_VALUE
+ block->u.Packet_Downlink_Assignment.Packet_Timing_Advance.Exist_IndexAndtimeSlot = 0x0; // TIMING_ADVANCE_INDEX = off
- bitvec_write_field(dest, wp,0x1,1); // switch TFI : on
- bitvec_write_field(dest, wp,new_tfi,5);// TFI
+ block->u.Packet_Downlink_Assignment.Exist_P0_and_BTS_PWR_CTRL_MODE = 0x0; // POWER CONTROL = off
- bitvec_write_field(dest, wp,0x1,1); // Power Control Parameters IE = present
- bitvec_write_field(dest, wp,0x0,4); // ALPHA power control parameter
+ block->u.Packet_Downlink_Assignment.Exist_Frequency_Parameters = 0x1; // Frequency Parameters = on
+ block->u.Packet_Downlink_Assignment.Frequency_Parameters.TSC = tsc; // Training Sequence Code (TSC)
+ block->u.Packet_Downlink_Assignment.Frequency_Parameters.UnionType = 0x0; // ARFCN = on
+ block->u.Packet_Downlink_Assignment.Frequency_Parameters.u.ARFCN = arfcn; // ARFCN
+
+ block->u.Packet_Downlink_Assignment.Exist_DOWNLINK_TFI_ASSIGNMENT = 0x1; // DOWNLINK TFI ASSIGNMENT = on
+ block->u.Packet_Downlink_Assignment.DOWNLINK_TFI_ASSIGNMENT = new_tfi; // TFI
+
+ block->u.Packet_Downlink_Assignment.Exist_Power_Control_Parameters = 0x1; // Power Control Parameters = on
+ block->u.Packet_Downlink_Assignment.Power_Control_Parameters.ALPHA = 0x0; // ALPHA
+
for (i = 0; i < 8; i++)
- bitvec_write_field(dest, wp,(tn == i),1); // switch GAMMA_TN[i] = on or off
- bitvec_write_field(dest, wp,0x0,5); // GAMMA_TN[tn]
+ {
+ if (tn == i)
+ {
+ block->u.Packet_Downlink_Assignment.Power_Control_Parameters.Slot[i].Exist = 0x1; // Slot[i] = on
+ block->u.Packet_Downlink_Assignment.Power_Control_Parameters.Slot[i].GAMMA_TN = 0x0; // GAMMA_TN
+ }
+ else
+ {
+ block->u.Packet_Downlink_Assignment.Power_Control_Parameters.Slot[i].Exist = 0x0; // Slot[i] = off
+ }
+ }
- bitvec_write_field(dest, wp,0x0,1); // TBF Starting TIME IE not present
- bitvec_write_field(dest, wp,0x0,1); // Measurement Mapping struct not present
- bitvec_write_field(dest, wp,0x0,1);
+ block->u.Packet_Downlink_Assignment.Exist_TBF_Starting_Time = 0x0; // TBF Starting TIME = off
+ block->u.Packet_Downlink_Assignment.Exist_Measurement_Mapping = 0x0; // Measurement_Mapping = off
+ block->u.Packet_Downlink_Assignment.Exist_AdditionsR99 = 0x0; // AdditionsR99 = off
}
/* generate uplink ack */
-void write_packet_uplink_ack(bitvec * dest, struct gprs_rlcmac_tbf *tbf,
+void write_packet_uplink_ack(RlcMacDownlink_t * block, struct gprs_rlcmac_tbf *tbf,
uint8_t final)
{
+ // Packet Uplink Ack/Nack TS 44.060 11.2.28
+
char show_v_n[65];
- // TODO We should use our implementation of encode RLC/MAC Control messages.
- unsigned wp = 0;
+ uint8_t rbb = 0;
uint16_t i, bbn;
uint16_t mod_sns_half = (tbf->sns >> 1) - 1;
char bit;
@@ -552,30 +564,19 @@
LOGP(DRLCMACUL, LOGL_DEBUG, "Sending Ack/Nack for TBF=%d "
"(final=%d)\n", tbf->tfi, final);
- bitvec_write_field(dest, wp,0x1,2); // payload
- bitvec_write_field(dest, wp,0x0,2); // Uplink block with TDMA framenumber (N+13)
- bitvec_write_field(dest, wp,final,1); // Suppl/Polling Bit
- bitvec_write_field(dest, wp,0x0,3); // Uplink state flag
-
- //bitvec_write_field(dest, wp,0x0,1); // Reduced block sequence number
- //bitvec_write_field(dest, wp,BSN+6,5); // Radio transaction identifier
- //bitvec_write_field(dest, wp,0x1,1); // Final segment
- //bitvec_write_field(dest, wp,0x1,1); // Address control
+ block->PAYLOAD_TYPE = 0x1; // RLC/MAC control block that does not include the optional octets of the RLC/MAC control header
+ block->RRBP = 0x0; // N+13
+ block->SP = final; // RRBP field is valid, if it is final ack
+ block->USF = 0x0; // Uplink state flag
- //bitvec_write_field(dest, wp,0x0,2); // Power reduction: 0
- //bitvec_write_field(dest, wp,TFI,5); // Temporary flow identifier
- //bitvec_write_field(dest, wp,0x1,1); // Direction
+ block->u.Packet_Uplink_Ack_Nack.MESSAGE_TYPE = 0x9; // Packet Downlink Assignment
+ block->u.Packet_Uplink_Ack_Nack.PAGE_MODE = 0x0; // Normal Paging
+ block->u.Packet_Uplink_Ack_Nack.UPLINK_TFI = tbf->tfi; // Uplink TFI
- bitvec_write_field(dest, wp,0x09,6); // MESSAGE TYPE
- bitvec_write_field(dest, wp,0x0,2); // Page Mode
-
- bitvec_write_field(dest, wp,0x0,2);
- bitvec_write_field(dest, wp,tbf->tfi,5); // Uplink TFI
- bitvec_write_field(dest, wp,0x0,1);
-
- bitvec_write_field(dest, wp,0x0,2); // CS1
- bitvec_write_field(dest, wp,final,1); // FINAL_ACK_INDICATION
- bitvec_write_field(dest, wp,tbf->dir.ul.v_r,7); // STARTING_SEQUENCE_NUMBER
+ block->u.Packet_Uplink_Ack_Nack.UnionType = 0x0; // PU_AckNack_GPRS = on
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.CHANNEL_CODING_COMMAND = 0x0; // CS1
+ 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.v_r; // STARTING_SEQUENCE_NUMBER
// RECEIVE_BLOCK_BITMAP
for (i = 0, bbn = (tbf->dir.ul.v_r - 64) & mod_sns_half; i < 64;
i++, bbn = (bbn + 1) & mod_sns_half) {
@@ -583,15 +584,29 @@
if (bit == 0)
bit = ' ';
show_v_n[i] = bit;
- bitvec_write_field(dest, wp,(bit == 'R'),1);
+ if (bit == 'R')
+ rbb = (rbb << 1)|1;
+ else
+ rbb = (rbb << 1);
+ if((i%8) == 7)
+ {
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Ack_Nack_Description.RECEIVED_BLOCK_BITMAP[i/8] = rbb;
+ rbb = 0;
+ }
}
show_v_n[64] = '\0';
LOGP(DRLCMACUL, LOGL_DEBUG, "- V(N): \"%s\" R=Received "
"N=Not-Received\n", show_v_n);
- bitvec_write_field(dest, wp,0x1,1); // CONTENTION_RESOLUTION_TLLI = present
- bitvec_write_field(dest, wp,tbf->tlli,8*4);
- bitvec_write_field(dest, wp,0x00,4); //spare
- bitvec_write_field(dest, wp,0x5,4); //0101
+
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.UnionType = 0x0; // Fixed Allocation Dummy = on
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.u.FixedAllocationDummy = 0x0; // Fixed Allocation Dummy
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Exist_AdditionsR99 = 0x0; // AdditionsR99 = off
+
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Common_Uplink_Ack_Nack_Data.Exist_CONTENTION_RESOLUTION_TLLI = 0x1;
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Common_Uplink_Ack_Nack_Data.CONTENTION_RESOLUTION_TLLI = tbf->tlli;
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Common_Uplink_Ack_Nack_Data.Exist_Packet_Timing_Advance = 0x0;
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Common_Uplink_Ack_Nack_Data.Exist_Extension_Bits = 0x0;
+ block->u.Packet_Uplink_Ack_Nack.u.PU_AckNack_GPRS_Struct.Common_Uplink_Ack_Nack_Data.Exist_Power_Control_Parameters = 0x0;
}
/* Send Uplink unit-data to SGSN. */
@@ -613,4 +628,3 @@
return 0;
}
-
diff --git a/src/gprs_rlcmac.h b/src/gprs_rlcmac.h
index abb9980..635a6b1 100644
--- a/src/gprs_rlcmac.h
+++ b/src/gprs_rlcmac.h
@@ -228,11 +228,11 @@
uint8_t usf, uint16_t arfcn, uint8_t tn, uint8_t ta, uint8_t tsc,
uint8_t poll);
-void write_packet_downlink_assignment(bitvec * dest, uint8_t old_tfi,
+void write_packet_downlink_assignment(RlcMacDownlink_t * block, uint8_t old_tfi,
uint8_t old_downlink, uint8_t new_tfi, uint16_t arfcn,
uint8_t tn, uint8_t ta, uint8_t tsc, uint8_t poll);
-void write_packet_uplink_ack(bitvec * dest, struct gprs_rlcmac_tbf *tbf,
+void write_packet_uplink_ack(RlcMacDownlink_t * block, struct gprs_rlcmac_tbf *tbf,
uint8_t final);
int gprs_rlcmac_tx_ul_ud(gprs_rlcmac_tbf *tbf);
diff --git a/src/gprs_rlcmac_data.cpp b/src/gprs_rlcmac_data.cpp
index a87fef1..7beca38 100644
--- a/src/gprs_rlcmac_data.cpp
+++ b/src/gprs_rlcmac_data.cpp
@@ -540,9 +540,12 @@
}
bitvec_unhex(ack_vec,
"2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b");
- write_packet_uplink_ack(ack_vec, tbf, final);
+ RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)malloc(sizeof(RlcMacDownlink_t));
+ write_packet_uplink_ack(mac_control_block, tbf, final);
+ encode_gsm_rlcmac_downlink(ack_vec, mac_control_block);
bitvec_pack(ack_vec, msgb_put(msg, 23));
bitvec_free(ack_vec);
+ free(mac_control_block);
if (final) {
tbf->poll_state = GPRS_RLCMAC_POLL_SCHED;
@@ -1314,17 +1317,18 @@
bitvec_unhex(ass_vec,
"2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b");
LOGP(DRLCMAC, LOGL_INFO, "TBF: START TFI: %u TLLI: 0x%08x Packet Downlink Assignment (PACCH)\n", new_tbf->tfi, new_tbf->tlli);
- write_packet_downlink_assignment(ass_vec, tbf->tfi,
+ RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)malloc(sizeof(RlcMacDownlink_t));
+ write_packet_downlink_assignment(mac_control_block, tbf->tfi,
(tbf->direction == GPRS_RLCMAC_DL_TBF), new_tbf->tfi,
new_tbf->arfcn, new_tbf->ts, new_tbf->ta, new_tbf->tsc,
POLLING_ASSIGNMENT);
- bitvec_pack(ass_vec, msgb_put(msg, 23));
- RlcMacDownlink_t * mac_control_block = (RlcMacDownlink_t *)malloc(sizeof(RlcMacDownlink_t));
LOGP(DRLCMAC, LOGL_DEBUG, "+++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++\n");
- decode_gsm_rlcmac_downlink(ass_vec, mac_control_block);
+ encode_gsm_rlcmac_downlink(ass_vec, mac_control_block);
LOGPC(DCSN1, LOGL_NOTICE, "\n");
LOGP(DRLCMAC, LOGL_DEBUG, "------------------------- TX : Packet Downlink Assignment -------------------------\n");
+ bitvec_pack(ass_vec, msgb_put(msg, 23));
bitvec_free(ass_vec);
+ free(mac_control_block);
#if POLLING_ASSIGNMENT == 1
tbf->poll_state = GPRS_RLCMAC_POLL_SCHED;
diff --git a/src/gsmL1prim.h b/src/gsmL1prim.h
deleted file mode 100644
index b348a1a..0000000
--- a/src/gsmL1prim.h
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
-* Copyright 2012 Thomas Cooper <tacooper@vt.edu>
-*
-* This software is distributed under the terms of the GNU Affero Public License.
-* See the COPYING file in the main directory for details.
-*
-* This use of this software may be subject to additional restrictions.
-* See the LEGAL file in the main directory for details.
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-#ifndef GSML1PRIM_H
-#define GSML1PRIM_H
-
-#include <stdint.h>
-
-typedef enum GsmL1_SubCh_t {
-GsmL1_SubCh_NA,
-} GsmL1_SubCh_t;
-
-typedef enum GsmL1_Sapi_t {
-GsmL1_Sapi_Fcch,
-GsmL1_Sapi_Sch,
-GsmL1_Sapi_Sacch,
-GsmL1_Sapi_Sdcch,
-GsmL1_Sapi_Bcch,
-GsmL1_Sapi_Pch,
-GsmL1_Sapi_Agch,
-GsmL1_Sapi_Cbch,
-GsmL1_Sapi_Rach,
-GsmL1_Sapi_TchF,
-GsmL1_Sapi_FacchF,
-GsmL1_Sapi_TchH,
-GsmL1_Sapi_FacchH,
-GsmL1_Sapi_Nch,
-GsmL1_Sapi_Pdtch,
-GsmL1_Sapi_Pacch,
-GsmL1_Sapi_Pbcch,
-GsmL1_Sapi_Pagch,
-GsmL1_Sapi_Ppch,
-GsmL1_Sapi_Pnch,
-GsmL1_Sapi_Ptcch,
-GsmL1_Sapi_Prach,
-GsmL1_Sapi_Idle,
-GsmL1_Sapi_NUM,
-} GsmL1_Sapi_t;
-
-typedef enum GsmL1_Status_t {
-GsmL1_Status_Success,
-GsmL1_Status_Generic,
-GsmL1_Status_NoMemory,
-GsmL1_Status_Timeout,
-GsmL1_Status_InvalidParam,
-GsmL1_Status_Busy,
-GsmL1_Status_NoRessource,
-GsmL1_Status_Uninitialized,
-GsmL1_Status_NullInterface,
-GsmL1_Status_NullFctnPtr,
-GsmL1_Status_BadCrc,
-GsmL1_Status_BadUsf,
-GsmL1_Status_InvalidCPS,
-GsmL1_Status_UnexpectedBurst,
-GsmL1_Status_UnavailCodec,
-GsmL1_Status_CriticalError,
-GsmL1_Status_OverheatError,
-GsmL1_Status_DeviceError,
-GsmL1_Status_FacchError,
-GsmL1_Status_AlreadyDeactivated,
-GsmL1_Status_TxBurstFifoOvrn,
-GsmL1_Status_TxBurstFifoUndr,
-GsmL1_Status_NotSynchronized,
-GsmL1_Status_Unsupported,
-GSML1_STATUS_NUM,
-} GsmL1_Status_t;
-
-typedef enum GsmL1_PrimId_t {
-GsmL1_PrimId_MphInitReq,
-GsmL1_PrimId_MphCloseReq,
-GsmL1_PrimId_MphConnectReq,
-GsmL1_PrimId_MphDisconnectReq,
-GsmL1_PrimId_MphActivateReq,
-GsmL1_PrimId_MphDeactivateReq,
-GsmL1_PrimId_MphConfigReq,
-GsmL1_PrimId_MphMeasureReq,
-GsmL1_PrimId_MphInitCnf,
-GsmL1_PrimId_MphCloseCnf,
-GsmL1_PrimId_MphConnectCnf,
-GsmL1_PrimId_MphDisconnectCnf,
-GsmL1_PrimId_MphActivateCnf,
-GsmL1_PrimId_MphDeactivateCnf,
-GsmL1_PrimId_MphConfigCnf,
-GsmL1_PrimId_MphMeasureCnf,
-GsmL1_PrimId_MphTimeInd,
-GsmL1_PrimId_MphSyncInd,
-GsmL1_PrimId_PhEmptyFrameReq,
-GsmL1_PrimId_PhDataReq,
-GsmL1_PrimId_PhConnectInd,
-GsmL1_PrimId_PhReadyToSendInd,
-GsmL1_PrimId_PhDataInd,
-GsmL1_PrimId_PhRaInd,
-GsmL1_PrimId_NUM,
-} GsmL1_PrimId_t;
-
-typedef enum GsmL1_Dir_t {
-GsmL1_Dir_TxDownlink,
-GsmL1_Dir_RxUplink,
-} GsmL1_Dir_t;
-
-typedef enum GsmL1_DevType_t {
-GsmL1_DevType_TxdRxu,
-} GsmL1_DevType_t;
-
-typedef enum GsmL1_TchPlType_t {
-GsmL1_TchPlType_NA,
-GsmL1_TchPlType_Efr,
-GsmL1_TchPlType_Fr,
-GsmL1_TchPlType_Hr,
-GsmL1_TchPlType_Amr,
-GsmL1_TchPlType_Amr_SidBad,
-GsmL1_TchPlType_Amr_Onset,
-GsmL1_TchPlType_Amr_Ratscch,
-GsmL1_TchPlType_Amr_SidUpdateInH,
-GsmL1_TchPlType_Amr_SidFirstP1,
-GsmL1_TchPlType_Amr_SidFirstP2,
-GsmL1_TchPlType_Amr_SidFirstInH,
-GsmL1_TchPlType_Amr_RatscchMarker,
-GsmL1_TchPlType_Amr_RatscchData,
-} GsmL1_TchPlType_t;
-
-typedef enum GsmL1_ConfigParamId_t {
-GsmL1_ConfigParamId_SetNbTsc,
-GsmL1_ConfigParamId_SetTxPowerLevel,
-GsmL1_ConfigParamId_SetLogChParams,
-GsmL1_ConfigParamId_SetCipheringParams,
-} GsmL1_ConfigParamId_t;
-
-typedef struct GsmL1_DeviceParam_t {
-enum GsmL1_DevType_t devType;
-int freqBand;
-uint16_t u16Arfcn;
-uint16_t u16BcchArfcn;
-uint8_t u8NbTsc;
-uint8_t u8Ncc;
-float fRxPowerLevel;
-float fTxPowerLevel;
-} GsmL1_DeviceParam_t;
-
-typedef struct GsmL1_MsgUnitParam_t {
-uint8_t u8Buffer[256];
-uint8_t u8Size;
-} GsmL1_MsgUnitParam_t;
-
-typedef struct GsmL1_MeasParam_t {
-float fRssi;
-float fLinkQuality;
-float fBer;
-int16_t i16BurstTiming;
-} GsmL1_MeasParam_t;
-
-typedef struct GsmL1_LogChParam_t {
-union {
-struct {
-enum GsmL1_TchPlType_t tchPlType;
-
-enum {
-GsmL1_AmrCmiPhase_NA,
-GsmL1_AmrCmiPhase_Odd,
-} amrCmiPhase;
-
-enum {
-GsmL1_AmrCodecMode_Unset,
-} amrInitCodecMode;
-
-enum {
-GsmL1_AmrCodec_Unset,
-GsmL1_AmrCodec_4_75,
-GsmL1_AmrCodec_5_15,
-GsmL1_AmrCodec_5_9,
-GsmL1_AmrCodec_6_7,
-GsmL1_AmrCodec_7_4,
-GsmL1_AmrCodec_7_95,
-GsmL1_AmrCodec_10_2,
-GsmL1_AmrCodec_12_2,
-} amrActiveCodecSet[8];
-} tch;
-
-struct {
-uint8_t u8Bsic;
-uint8_t u8NbrOfAgch;
-} rach;
-
-struct {
-uint8_t u8MsPowerLevel;
-} sacch;
-
-struct {
-uint8_t u8NbrOfAgch;
-} agch;
-};
-} GsmL1_LogChParam_t;
-
-typedef enum GsmL1_LogChComb_t {
-GsmL1_LogChComb_0,
-GsmL1_LogChComb_I,
-GsmL1_LogChComb_II,
-GsmL1_LogChComb_IV,
-GsmL1_LogChComb_V,
-GsmL1_LogChComb_VII,
-GsmL1_LogChComb_XIII,
-} GsmL1_LogChComb_t;
-
-enum {
-GsmL1_FreqBand_850,
-GsmL1_FreqBand_900,
-GsmL1_FreqBand_1800,
-GsmL1_FreqBand_1900,
-};
-
-typedef struct GsmL1_MphInitReq_t {
-struct GsmL1_DeviceParam_t deviceParam;
-} GsmL1_MphInitReq_t;
-
-typedef struct GsmL1_MphCloseReq_t {
-uint32_t hLayer1;
-} GsmL1_MphCloseReq_t;
-
-typedef struct GsmL1_MphConnectReq_t {
-uint32_t hLayer1;
-uint8_t u8Tn;
-enum GsmL1_LogChComb_t logChComb;
-} GsmL1_MphConnectReq_t;
-
-typedef struct GsmL1_MphDisconnectReq_t {
-uint32_t hLayer1;
-} GsmL1_MphDisconnectReq_t;
-
-typedef struct GsmL1_MphActivateReq_t {
-uint32_t hLayer1;
-struct GsmL1_LogChParam_t logChPrm;
-uint8_t u8Tn;
-enum GsmL1_SubCh_t subCh;
-enum GsmL1_Dir_t dir;
-enum GsmL1_Sapi_t sapi;
-uint32_t hLayer2;
-float fBFILevel;
-} GsmL1_MphActivateReq_t;
-
-typedef struct GsmL1_MphDeactivateReq_t {
-uint32_t hLayer1;
-uint8_t u8Tn;
-enum GsmL1_SubCh_t subCh;
-enum GsmL1_Dir_t dir;
-enum GsmL1_Sapi_t sapi;
-} GsmL1_MphDeactivateReq_t;
-
-typedef struct GsmL1_ConfigParam_t {
-struct {
-enum GsmL1_Sapi_t sapi;
-uint8_t u8Tn;
-enum GsmL1_SubCh_t subCh;
-enum GsmL1_Dir_t dir;
-struct GsmL1_LogChParam_t logChParams;
-} setLogChParams;
-} GsmL1_ConfigParam_t;
-
-typedef struct GsmL1_MphConfigReq_t {
-uint32_t hLayer1;
-enum GsmL1_ConfigParamId_t cfgParamId;
-struct GsmL1_ConfigParam_t cfgParams;
-} GsmL1_MphConfigReq_t;
-
-typedef struct GsmL1_MphConfigCnf_t {
-enum GsmL1_Status_t status;
-enum GsmL1_ConfigParamId_t cfgParamId;
-struct GsmL1_ConfigParam_t cfgParams;
-} GsmL1_MphConfigCnf_t;
-
-typedef struct GsmL1_MphMeasureReq_t {
-uint32_t hLayer1;
-} GsmL1_MphMeasureReq_t;
-
-typedef struct GsmL1_MphInitCnf_t {
-uint32_t hLayer1;
-enum GsmL1_Status_t status;
-} GsmL1_MphInitCnf_t;
-
-typedef struct GsmL1_MphCloseCnf_t {
-enum GsmL1_Status_t status;
-} GsmL1_MphCloseCnf_t;
-
-typedef struct GsmL1_MphConnectCnf_t {
-enum GsmL1_Status_t status;
-} GsmL1_MphConnectCnf_t;
-
-typedef struct GsmL1_MphDisconnectCnf_t {
-enum GsmL1_Status_t status;
-} GsmL1_MphDisconnectCnf_t;
-
-typedef struct GsmL1_MphActivateCnf_t {
-enum GsmL1_Status_t status;
-uint8_t u8Tn;
-int sapi;
-} GsmL1_MphActivateCnf_t;
-
-typedef struct GsmL1_MphDeactivateCnf_t {
-enum GsmL1_Status_t status;
-uint8_t u8Tn;
-enum GsmL1_Sapi_t sapi;
-} GsmL1_MphDeactivateCnf_t;
-
-typedef struct GsmL1_MphMeasureCnf_t {
-enum GsmL1_Status_t status;
-} GsmL1_MphMeasureCnf_t;
-
-typedef struct GsmL1_MphTimeInd_t {
-uint32_t u32Fn;
-} GsmL1_MphTimeInd_t;
-
-typedef struct GsmL1_MphSyncInd_t {
-} GsmL1_MphSyncInd_t;
-
-typedef struct GsmL1_PhEmptyFrameReq_t {
-uint32_t hLayer1;
-uint8_t u8Tn;
-uint32_t u32Fn;
-enum GsmL1_Sapi_t sapi;
-enum GsmL1_SubCh_t subCh;
-uint8_t u8BlockNbr;
-} GsmL1_PhEmptyFrameReq_t;
-
-typedef struct GsmL1_PhDataReq_t {
-uint32_t hLayer1;
-uint8_t u8Tn;
-uint32_t u32Fn;
-enum GsmL1_Sapi_t sapi;
-enum GsmL1_SubCh_t subCh;
-uint8_t u8BlockNbr;
-struct GsmL1_MsgUnitParam_t msgUnitParam;
-} GsmL1_PhDataReq_t;
-
-typedef struct GsmL1_PhConnectInd_t {
-uint8_t u8Tn;
-uint8_t u8Tsc;
-uint16_t u16Arfcn;
-} GsmL1_PhConnectInd_t;
-
-typedef struct GsmL1_PhReadyToSendInd_t {
-uint32_t hLayer1;
-uint8_t u8Tn;
-uint32_t u32Fn;
-enum GsmL1_Sapi_t sapi;
-enum GsmL1_SubCh_t subCh;
-uint8_t u8BlockNbr;
-uint32_t hLayer2;
-} GsmL1_PhReadyToSendInd_t;
-
-typedef struct GsmL1_PhDataInd_t {
-struct GsmL1_MeasParam_t measParam;
-struct GsmL1_MsgUnitParam_t msgUnitParam;
-enum GsmL1_Sapi_t sapi;
-uint32_t hLayer2;
-} GsmL1_PhDataInd_t;
-
-typedef struct GsmL1_PhRaInd_t {
-struct GsmL1_MeasParam_t measParam;
-struct GsmL1_MsgUnitParam_t msgUnitParam;
-uint32_t u32Fn;
-uint32_t hLayer2;
-} GsmL1_PhRaInd_t;
-
-typedef struct GsmL1_Prim_t {
-union {
-struct GsmL1_MphInitReq_t mphInitReq;
-struct GsmL1_MphCloseReq_t mphCloseReq;
-struct GsmL1_MphConnectReq_t mphConnectReq;
-struct GsmL1_MphDisconnectReq_t mphDisconnectReq;
-struct GsmL1_MphActivateReq_t mphActivateReq;
-struct GsmL1_MphDeactivateReq_t mphDeactivateReq;
-struct GsmL1_MphConfigReq_t mphConfigReq;
-struct GsmL1_MphMeasureReq_t mphMeasureReq;
-struct GsmL1_MphInitCnf_t mphInitCnf;
-struct GsmL1_MphCloseCnf_t mphCloseCnf;
-struct GsmL1_MphConnectCnf_t mphConnectCnf;
-struct GsmL1_MphDisconnectCnf_t mphDisconnectCnf;
-struct GsmL1_MphActivateCnf_t mphActivateCnf;
-struct GsmL1_MphDeactivateCnf_t mphDeactivateCnf;
-struct GsmL1_MphConfigCnf_t mphConfigCnf;
-struct GsmL1_MphMeasureCnf_t mphMeasureCnf;
-struct GsmL1_MphTimeInd_t mphTimeInd;
-struct GsmL1_MphSyncInd_t mphSyncInd;
-struct GsmL1_PhEmptyFrameReq_t phEmptyFrameReq;
-struct GsmL1_PhDataReq_t phDataReq;
-struct GsmL1_PhConnectInd_t phConnectInd;
-struct GsmL1_PhReadyToSendInd_t phReadyToSendInd;
-struct GsmL1_PhDataInd_t phDataInd;
-struct GsmL1_PhRaInd_t phRaInd;
-} u;
-
-enum GsmL1_PrimId_t id;
-} GsmL1_Prim_t;
-
-#endif
diff --git a/src/openbts_sock.cpp b/src/openbts_sock.cpp
new file mode 100644
index 0000000..cbf7adc
--- /dev/null
+++ b/src/openbts_sock.cpp
@@ -0,0 +1,183 @@
+/* openbts_sock.cpp
+ *
+ * Copyright (C) 2012 Ivan Klyuchnikov
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <gprs_rlcmac.h>
+#include <gprs_bssgp_pcu.h>
+#include <pcu_l1_if.h>
+#include <gprs_debug.h>
+#include <bitvector.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+extern "C" {
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/write_queue.h>
+#include <osmocom/core/socket.h>
+#include <osmocom/core/timer.h>
+#include <osmocom/gsm/gsm_utils.h>
+#include <pcuif_proto.h>
+}
+
+struct femtol1_hdl {
+ struct gsm_time gsm_time;
+ uint32_t hLayer1; /* handle to the L1 instance in the DSP */
+ uint32_t dsp_trace_f;
+ uint16_t clk_cal;
+ struct llist_head wlc_list;
+
+ void *priv; /* user reference */
+
+ struct osmo_timer_list alive_timer;
+ unsigned int alive_prim_cnt;
+
+ struct osmo_fd read_ofd; /* osmo file descriptors */
+ struct osmo_wqueue write_q;
+
+ struct {
+ uint16_t arfcn;
+ uint8_t tn;
+ uint8_t tsc;
+ uint16_t ta;
+ } channel_info;
+
+};
+
+struct l1fwd_hdl {
+ struct sockaddr_storage remote_sa;
+ socklen_t remote_sa_len;
+
+ struct osmo_wqueue udp_wq;
+
+ struct femtol1_hdl *fl1h;
+};
+
+struct l1fwd_hdl *l1fh = talloc_zero(NULL, struct l1fwd_hdl);
+
+// TODO: We should move this parameters to config file.
+#define PCU_L1_IF_PORT 5944
+
+/* OpenBTS socket functions */
+
+int pcu_sock_send(struct msgb *msg)
+{
+ osmo_wqueue_enqueue(&l1fh->udp_wq, msg);
+ return 0;
+}
+
+/* data has arrived on the udp socket */
+static int udp_read_cb(struct osmo_fd *ofd)
+{
+ struct msgb *msg = msgb_alloc_headroom(2048, 128, "udp_rx");
+ struct l1fwd_hdl *l1fh = (l1fwd_hdl *)ofd->data;
+ struct femtol1_hdl *fl1h = l1fh->fl1h;
+ int rc;
+
+ if (!msg)
+ return -ENOMEM;
+
+ msg->l1h = msg->data;
+
+ l1fh->remote_sa_len = sizeof(l1fh->remote_sa);
+ rc = recvfrom(ofd->fd, msg->l1h, msgb_tailroom(msg), 0,
+ (struct sockaddr *) &l1fh->remote_sa, &l1fh->remote_sa_len);
+ if (rc < 0) {
+ perror("read from udp");
+ msgb_free(msg);
+ return rc;
+ } else if (rc == 0) {
+ perror("len=0 read from udp");
+ msgb_free(msg);
+ return rc;
+ }
+ msgb_put(msg, rc);
+
+ struct gsm_pcu_if *pcu_prim = (gsm_pcu_if *)(msg->l1h);
+ rc = pcu_rx(pcu_prim->msg_type, pcu_prim);
+ return rc;
+}
+
+/* callback when we can write to the UDP socket */
+static int udp_write_cb(struct osmo_fd *ofd, struct msgb *msg)
+{
+ int rc;
+ struct l1fwd_hdl *l1fh = (l1fwd_hdl *)ofd->data;
+
+ //LOGP(DPCU, LOGL_ERROR, "UDP: Writing %u bytes for MQ_L1_WRITE queue\n", msgb_length(msg));
+
+ rc = sendto(ofd->fd, msgb_data(msg), msgb_length(msg), 0,
+ (const struct sockaddr *)&l1fh->remote_sa, l1fh->remote_sa_len);
+ if (rc < 0) {
+ LOGP(DPCU, LOGL_ERROR, "error writing to L1 msg_queue: %s\n",
+ strerror(errno));
+ return rc;
+ } else if (rc < (int)msgb_length(msg)) {
+ LOGP(DPCU, LOGL_ERROR, "short write to L1 msg_queue: "
+ "%u < %u\n", rc, msgb_length(msg));
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int pcu_l1if_open()
+{
+ struct femtol1_hdl *fl1h;
+ int rc;
+
+ /* allocate new femtol1_handle */
+ fl1h = talloc_zero(NULL, struct femtol1_hdl);
+ INIT_LLIST_HEAD(&fl1h->wlc_list);
+
+ l1fh->fl1h = fl1h;
+ fl1h->priv = l1fh;
+
+ struct osmo_wqueue * queue = &((l1fh->fl1h)->write_q);
+ osmo_wqueue_init(queue, 10);
+ queue->bfd.when |= BSC_FD_READ;
+ queue->bfd.data = l1fh;
+ queue->bfd.priv_nr = 0;
+
+ /* Open UDP */
+ struct osmo_wqueue *wq = &l1fh->udp_wq;
+
+ osmo_wqueue_init(wq, 10);
+ wq->write_cb = udp_write_cb;
+ wq->read_cb = udp_read_cb;
+ wq->bfd.when |= BSC_FD_READ;
+ wq->bfd.data = l1fh;
+ wq->bfd.priv_nr = 0;
+ rc = osmo_sock_init_ofd(&wq->bfd, AF_UNSPEC, SOCK_DGRAM,
+ IPPROTO_UDP, NULL, PCU_L1_IF_PORT,
+ OSMO_SOCK_F_BIND);
+ if (rc < 0) {
+ perror("sock_init");
+ exit(1);
+ }
+
+ return 0;
+}
+
+void pcu_l1if_close(void)
+{
+ gprs_bssgp_destroy();
+
+ /* FIXME: cleanup l1if */
+ talloc_free(l1fh->fl1h);
+}
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 865a911..fd8b3c3 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -1,6 +1,6 @@
/* pcu_l1_if.cpp
*
- * Copyright (C) 2012 Ivan Klyuchnikov
+ * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -17,62 +17,25 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
#include <string.h>
-#include <gprs_rlcmac.h>
-#include <gprs_bssgp_pcu.h>
-#include <pcu_l1_if.h>
-#include <gprs_debug.h>
-#include <bitvector.h>
-#include <gsmL1prim.h>
+#include <errno.h>
+#include <assert.h>
#include <sys/socket.h>
-#include <arpa/inet.h>
+#include <sys/un.h>
extern "C" {
#include <osmocom/core/talloc.h>
-#include <osmocom/core/write_queue.h>
-#include <osmocom/core/socket.h>
-#include <osmocom/core/timer.h>
-#include <osmocom/gsm/gsm_utils.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/msgb.h>
}
-#define MAX_UDP_LENGTH 1500
-
-#define msgb_l1prim(msg) ((GsmL1_Prim_t *)(msg)->l1h)
-
-struct femtol1_hdl {
- struct gsm_time gsm_time;
- uint32_t hLayer1; /* handle to the L1 instance in the DSP */
- uint32_t dsp_trace_f;
- uint16_t clk_cal;
- struct llist_head wlc_list;
-
- void *priv; /* user reference */
-
- struct osmo_timer_list alive_timer;
- unsigned int alive_prim_cnt;
-
- struct osmo_fd read_ofd; /* osmo file descriptors */
- struct osmo_wqueue write_q;
-
- struct {
- uint16_t arfcn;
- uint8_t tn;
- uint8_t tsc;
- uint16_t ta;
- } channel_info;
-
-};
-
-struct l1fwd_hdl {
- struct sockaddr_storage remote_sa;
- socklen_t remote_sa_len;
-
- struct osmo_wqueue udp_wq;
-
- struct femtol1_hdl *fl1h;
-};
-
-struct l1fwd_hdl *l1fh = talloc_zero(NULL, struct l1fwd_hdl);
+#include <gprs_rlcmac.h>
+#include <pcu_l1_if.h>
+#include <gprs_debug.h>
+#include <gprs_bssgp_pcu.h>
+#include <pcuif_proto.h>
// Variable for storage current FN.
int frame_number;
@@ -87,277 +50,398 @@
frame_number = fn;
}
-struct msgb *l1p_msgb_alloc(void)
-{
- struct msgb *msg = msgb_alloc(sizeof(GsmL1_Prim_t), "l1_prim");
+/*
+ * PCU messages
+ */
- if (msg)
- msg->l1h = msgb_put(msg, sizeof(GsmL1_Prim_t));
+struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr)
+{
+ struct msgb *msg;
+ struct gsm_pcu_if *pcu_prim;
+
+ msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx");
+ if (!msg)
+ return NULL;
+ msgb_put(msg, sizeof(struct gsm_pcu_if));
+ pcu_prim = (struct gsm_pcu_if *) msg->data;
+ pcu_prim->msg_type = msg_type;
+ pcu_prim->bts_nr = bts_nr;
return msg;
}
-// Send RLC/MAC block to OpenBTS.
-void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
- uint32_t fn, uint8_t block_nr)
+static int pcu_tx_act_req(uint8_t trx, uint8_t ts, uint8_t activate)
{
- struct msgb *nmsg = l1p_msgb_alloc();
- GsmL1_Prim_t *prim = msgb_l1prim(nmsg);
-
- prim->id = GsmL1_PrimId_PhDataReq;
- prim->u.phDataReq.sapi = GsmL1_Sapi_Pdtch;
- memcpy(prim->u.phDataReq.msgUnitParam.u8Buffer, msg->data, msg->len);
- prim->u.phDataReq.msgUnitParam.u8Size = msg->len;
- osmo_wqueue_enqueue(&l1fh->udp_wq, nmsg);
+ struct msgb *msg;
+ struct gsm_pcu_if *pcu_prim;
+ struct gsm_pcu_if_act_req *act_req;
+
+ LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n",
+ (activate) ? "activate" : "deactivate", trx, ts);
+
+ msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0);
+ if (!msg)
+ return -ENOMEM;
+ pcu_prim = (struct gsm_pcu_if *) msg->data;
+ act_req = &pcu_prim->u.act_req;
+ act_req->activate = activate;
+ act_req->trx_nr = trx;
+ act_req->ts_nr = ts;
+
+ return pcu_sock_send(msg);
+}
+
+static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi,
+ uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data,
+ uint8_t len)
+{
+ struct msgb *msg;
+ struct gsm_pcu_if *pcu_prim;
+ struct gsm_pcu_if_data *data_req;
+
+ LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d "
+ "arfcn=%d fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn,
+ block_nr, osmo_hexdump(data, len));
+
+ msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0);
+ if (!msg)
+ return -ENOMEM;
+ pcu_prim = (struct gsm_pcu_if *) msg->data;
+ data_req = &pcu_prim->u.data_req;
+
+ data_req->sapi = sapi;
+ data_req->fn = fn;
+ data_req->arfcn = arfcn;
+ data_req->trx_nr = trx;
+ data_req->ts_nr = ts;
+ data_req->block_nr = block_nr;
+ memcpy(data_req->data, data, len);
+ data_req->len = len;
+
+ return pcu_sock_send(msg);
+}
+
+void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
+ uint32_t fn, uint8_t block_nr)
+{
+ pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr,
+ msg->data, msg->len);
+ msgb_free(msg);
+}
+
+void pcu_l1if_tx_ptcch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
+ uint32_t fn, uint8_t block_nr)
+{
+ pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr,
+ msg->data, msg->len);
msgb_free(msg);
}
void pcu_l1if_tx_agch(bitvec * block, int plen)
{
- struct msgb *msg = l1p_msgb_alloc();
- GsmL1_Prim_t *prim = msgb_l1prim(msg);
+ uint8_t data[23]; /* prefix PLEN */
- prim->id = GsmL1_PrimId_PhDataReq;
- prim->u.phDataReq.sapi = GsmL1_Sapi_Agch;
- bitvec_pack(block, prim->u.phDataReq.msgUnitParam.u8Buffer);
- prim->u.phDataReq.msgUnitParam.u8Size = 22;
- osmo_wqueue_enqueue(&l1fh->udp_wq, msg);
+ /* FIXME: why does OpenBTS has no PLEN and no fill in message? */
+ bitvec_pack(block, data + 1);
+ data[0] = (plen << 2) | 0x01;
+ pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, 23);
}
void pcu_l1if_tx_pch(bitvec * block, int plen, char *imsi)
{
- struct msgb *msg = l1p_msgb_alloc();
- GsmL1_Prim_t *prim = msgb_l1prim(msg);
-
- prim->id = GsmL1_PrimId_PhDataReq;
- prim->u.phDataReq.sapi = GsmL1_Sapi_Pch;
- bitvec_pack(block, prim->u.phDataReq.msgUnitParam.u8Buffer);
- prim->u.phDataReq.msgUnitParam.u8Size = 22;
- osmo_wqueue_enqueue(&l1fh->udp_wq, msg);
+ uint8_t data[23+3]; /* prefix PLEN */
+
+ /* paging group */
+ if (!imsi || strlen(imsi) < 3)
+ return;
+ imsi += strlen(imsi) - 3;
+ data[0] = imsi[0];
+ data[1] = imsi[1];
+ data[2] = imsi[2];
+
+ bitvec_pack(block, data + 3+1);
+ data[3] = (plen << 2) | 0x01;
+ pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, 23+3);
}
-int pcu_l1if_rx_pdch(GsmL1_PhDataInd_t *data_ind)
+static void pcu_l1if_tx_bcch(uint8_t *data, int len)
{
- gprs_rlcmac_rcv_block(data_ind->msgUnitParam.u8Buffer,
- data_ind->msgUnitParam.u8Size, data_ind->u32Fn);
-
- return 0;
+ pcu_tx_data_req(0, 0, PCU_IF_SAPI_BCCH, 0, 0, 0, data, len);
}
-static int handle_ph_connect_ind(struct femtol1_hdl *fl1, GsmL1_PhConnectInd_t *connect_ind)
+static int pcu_rx_data_ind(struct gsm_pcu_if_data *data_ind)
+{
+ int rc = 0;
+
+ LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d "
+ "block=%d data=%s\n", data_ind->sapi,
+ data_ind->arfcn, data_ind->block_nr,
+ osmo_hexdump(data_ind->data, data_ind->len));
+
+ switch (data_ind->sapi) {
+ case PCU_IF_SAPI_PDTCH:
+ rc = gprs_rlcmac_rcv_block(data_ind->data, data_ind->len,
+ data_ind->fn);
+ break;
+ default:
+ LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with "
+ "unsupported sapi %d\n", data_ind->sapi);
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+static int pcu_rx_rts_req(struct gsm_pcu_if_rts_req *rts_req)
+{
+ int rc = 0;
+
+ LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d "
+ "arfcn=%d fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr,
+ rts_req->sapi, rts_req->arfcn, rts_req->fn, rts_req->block_nr);
+
+ switch (rts_req->sapi) {
+ case PCU_IF_SAPI_PDTCH:
+ gprs_rlcmac_rcv_rts_block(rts_req->trx_nr, rts_req->ts_nr,
+ rts_req->arfcn, rts_req->fn, rts_req->block_nr);
+ break;
+ case PCU_IF_SAPI_PTCCH:
+ /* FIXME */
+ {
+ struct msgb *msg = msgb_alloc(23, "l1_prim");
+ memset(msgb_put(msg, 23), 0x2b, 23);
+ pcu_l1if_tx_ptcch(msg, rts_req->trx_nr, rts_req->ts_nr,
+ rts_req->arfcn, rts_req->fn, rts_req->block_nr);
+ }
+ break;
+ default:
+ LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with "
+ "unsupported sapi %d\n", rts_req->sapi);
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind)
+{
+ int rc = 0;
+
+ LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d "
+ "qta=%d, ra=%d, fn=%d\n", rach_ind->sapi, rach_ind->qta,
+ rach_ind->ra, rach_ind->fn);
+
+ switch (rach_ind->sapi) {
+ case PCU_IF_SAPI_RACH:
+ rc = gprs_rlcmac_rcv_rach(rach_ind->ra, rach_ind->fn,
+ rach_ind->qta);
+ break;
+ default:
+ LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with "
+ "unsupported sapi %d\n", rach_ind->sapi);
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+static int pcu_rx_info_ind(struct gsm_pcu_if_info_ind *info_ind)
{
struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
+ int rc = 0;
+ int trx, ts, tfi;
+ struct gprs_rlcmac_tbf *tbf;
+ int i;
- bts->trx[0].arfcn = connect_ind->u16Arfcn;
- bts->trx[0].pdch[connect_ind->u8Tn].enable = 1;
- bts->trx[0].pdch[connect_ind->u8Tn].tsc = connect_ind->u8Tsc;
- (l1fh->fl1h)->channel_info.arfcn = connect_ind->u16Arfcn;
- (l1fh->fl1h)->channel_info.tn = connect_ind->u8Tn;
- (l1fh->fl1h)->channel_info.tsc = connect_ind->u8Tsc;
- LOGP(DL1IF, LOGL_NOTICE, "RX: [ PCU <- BTS ] PhConnectInd: ARFCN: %u TN: %u TSC: %u \n",
- connect_ind->u16Arfcn, (unsigned)connect_ind->u8Tn, (unsigned)connect_ind->u8Tsc);
+ LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n");
+
+ if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) {
+ LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n");
+bssgp_failed:
+ /* free all TBF */
+ for (trx = 0; trx < 8; trx++) {
+ bts->trx[trx].arfcn = info_ind->trx[trx].arfcn;
+ for (ts = 0; ts < 8; ts++) {
+ for (tfi = 0; tfi < 32; tfi++) {
+ tbf = bts->trx[trx].pdch[ts].tbf[tfi];
+ if (tbf)
+ tbf_free(tbf);
+ }
+ }
+ }
+ gprs_bssgp_destroy();
+ return 0;
+ }
+ LOGP(DL1IF, LOGL_INFO, "BTS available\n");
+ LOGP(DL1IF, LOGL_DEBUG, " mcc=%d\n", info_ind->mcc);
+ LOGP(DL1IF, LOGL_DEBUG, " mnc=%d\n", info_ind->mnc);
+ LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac);
+ LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac);
+ LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id);
+ LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei);
+ LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n",
+ info_ind->nse_timer[0], info_ind->nse_timer[1],
+ info_ind->nse_timer[2], info_ind->nse_timer[3],
+ info_ind->nse_timer[4], info_ind->nse_timer[5],
+ info_ind->nse_timer[6]);
+ LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d "
+ "%d\n",
+ info_ind->cell_timer[0], info_ind->cell_timer[1],
+ info_ind->cell_timer[2], info_ind->cell_timer[3],
+ info_ind->cell_timer[4], info_ind->cell_timer[5],
+ info_ind->cell_timer[6], info_ind->cell_timer[7],
+ info_ind->cell_timer[8], info_ind->cell_timer[9],
+ info_ind->cell_timer[10]);
+ LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time);
+ LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count);
+ LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci);
+ LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142);
+ LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169);
+ LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191);
+ LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10);
+ LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195);
+ LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101);
+ LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103);
+ LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105);
+ LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown);
+ LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext);
+ LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext);
+ for (i = 0; i < 4; i++) {
+ if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i)))
+ LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1);
+ }
+ for (i = 0; i < 9; i++) {
+ if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i)))
+ LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1);
+ }
+ LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs);
+ LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs);
+ LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]);
+ LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]);
+ LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]);
+ LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%d\n", info_ind->remote_ip[0]);
+
+ rc = gprs_bssgp_create(info_ind->remote_ip[0], info_ind->remote_port[0],
+ info_ind->nsei, info_ind->nsvci[0], info_ind->bvci,
+ info_ind->mcc, info_ind->mnc, info_ind->lac, info_ind->rac,
+ info_ind->cell_id);
+ if (rc < 0) {
+ LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n");
+ goto bssgp_failed;
+ }
+
+ bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1);
+ bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2);
+ bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3);
+ bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4);
+ if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4)
+ bts->cs1 = 1;
+ if (info_ind->t3142) { /* if timer values are set */
+ bts->t3142 = info_ind->t3142;
+ bts->t3169 = info_ind->t3169;
+ bts->t3191 = info_ind->t3191;
+ bts->t3193_msec = info_ind->t3193_10ms * 10;
+ bts->t3195 = info_ind->t3195;
+ bts->n3101 = info_ind->n3101;
+ bts->n3103 = info_ind->n3103;
+ bts->n3105 = info_ind->n3105;
+ }
+ if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4)
+ bts->initial_cs = 1;
+ else
+ bts->initial_cs = info_ind->initial_cs;
+
+ for (trx = 0; trx < 8; trx++) {
+ bts->trx[trx].arfcn = info_ind->trx[trx].arfcn;
+ for (ts = 0; ts < 8; ts++) {
+ if ((info_ind->trx[trx].pdch_mask & (1 << ts))) {
+ /* FIXME: activate dynamically at RLCMAC */
+ if (!bts->trx[trx].pdch[ts].enable)
+ pcu_tx_act_req(trx, ts, 1);
+ bts->trx[trx].pdch[ts].enable = 1;
+ bts->trx[trx].pdch[ts].tsc =
+ info_ind->trx[trx].tsc[ts];
+ LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n",
+ trx, ts);
+ } else {
+ if (bts->trx[trx].pdch[ts].enable)
+ pcu_tx_act_req(trx, ts, 0);
+ bts->trx[trx].pdch[ts].enable = 0;
+ /* kick all tbf FIXME: multislot */
+ for (tfi = 0; tfi < 32; tfi++) {
+ tbf = bts->trx[trx].pdch[ts].tbf[tfi];
+ if (tbf)
+ tbf_free(tbf);
+ }
+ }
+ }
+ }
+
+ return rc;
+}
+
+static int pcu_rx_time_ind(struct gsm_pcu_if_time_ind *time_ind)
+{
+ struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
+ int trx, ts, tfi;
+ struct gprs_rlcmac_tbf *tbf;
+ uint32_t elapsed;
+ uint8_t fn13 = time_ind->fn % 13;
+
+ /* omit frame numbers not starting at a MAC block */
+ if (fn13 != 0 && fn13 != 4 && fn13 != 8)
+ return 0;
+
+ LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n",
+ time_ind->fn % 52);
+
+ set_current_fn(time_ind->fn);
+
+ /* check for poll timeout */
+ for (trx = 0; trx < 8; trx++) {
+ for (ts = 0; ts < 8; ts++) {
+ for (tfi = 0; tfi < 32; tfi++) {
+ tbf = bts->trx[trx].pdch[ts].tbf[tfi];
+ if (!tbf)
+ continue;
+ if (tbf->poll_state != GPRS_RLCMAC_POLL_SCHED)
+ continue;
+ elapsed = (frame_number - tbf->poll_fn)
+ % 2715648;
+ if (elapsed >= 20 && elapsed < 200)
+ gprs_rlcmac_poll_timeout(tbf);
+ }
+ }
+ }
return 0;
}
-static int handle_ph_readytosend_ind(struct femtol1_hdl *fl1, GsmL1_PhReadyToSendInd_t *readytosend_ind)
-{
- gprs_rlcmac_rcv_rts_block(0,0, (l1fh->fl1h)->channel_info.arfcn, readytosend_ind->u32Fn, 0);
- return 1;
-}
-
-static int handle_ph_data_ind(struct femtol1_hdl *fl1, GsmL1_PhDataInd_t *data_ind)
+int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim)
{
int rc = 0;
- switch (data_ind->sapi) {
- case GsmL1_Sapi_Rach:
+
+ switch (msg_type) {
+ case PCU_IF_MSG_DATA_IND:
+ rc = pcu_rx_data_ind(&pcu_prim->u.data_ind);
break;
- case GsmL1_Sapi_Pdtch:
- case GsmL1_Sapi_Pacch:
- pcu_l1if_rx_pdch(data_ind);
+ case PCU_IF_MSG_RTS_REQ:
+ rc = pcu_rx_rts_req(&pcu_prim->u.rts_req);
break;
- case GsmL1_Sapi_Pbcch:
- case GsmL1_Sapi_Pagch:
- case GsmL1_Sapi_Ppch:
- case GsmL1_Sapi_Pnch:
- case GsmL1_Sapi_Ptcch:
- case GsmL1_Sapi_Prach:
+ case PCU_IF_MSG_RACH_IND:
+ rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind);
+ break;
+ case PCU_IF_MSG_INFO_IND:
+ rc = pcu_rx_info_ind(&pcu_prim->u.info_ind);
+ break;
+ case PCU_IF_MSG_TIME_IND:
+ rc = pcu_rx_time_ind(&pcu_prim->u.time_ind);
break;
default:
- LOGP(DL1IF, LOGL_NOTICE, "Rx PH-DATA.ind for unknown L1 SAPI %u \n", data_ind->sapi);
- break;
+ LOGP(DL1IF, LOGL_ERROR, "Received unknwon PCU msg type %d\n",
+ msg_type);
+ rc = -EINVAL;
}
return rc;
}
-
-static int handle_ph_ra_ind(struct femtol1_hdl *fl1, GsmL1_PhRaInd_t *ra_ind)
-{
- int rc = 0;
- (l1fh->fl1h)->channel_info.ta = ra_ind->measParam.i16BurstTiming;
- rc = gprs_rlcmac_rcv_rach(ra_ind->msgUnitParam.u8Buffer[0], ra_ind->u32Fn, ra_ind->measParam.i16BurstTiming);
- return rc;
-}
-
-/* handle any random indication from the L1 */
-int pcu_l1if_handle_l1prim(struct femtol1_hdl *fl1, struct msgb *msg)
-{
- GsmL1_Prim_t *l1p = msgb_l1prim(msg);
- int rc = 0;
-
- switch (l1p->id) {
- case GsmL1_PrimId_PhConnectInd:
- rc = handle_ph_connect_ind(fl1, &l1p->u.phConnectInd);
- break;
- case GsmL1_PrimId_PhReadyToSendInd:
- rc = handle_ph_readytosend_ind(fl1, &l1p->u.phReadyToSendInd);
- break;
- case GsmL1_PrimId_PhDataInd:
- rc = handle_ph_data_ind(fl1, &l1p->u.phDataInd);
- break;
- case GsmL1_PrimId_PhRaInd:
- rc = handle_ph_ra_ind(fl1, &l1p->u.phRaInd);
- break;
- default:
- break;
- }
-
- /* Special return value '1' means: do not free */
- if (rc != 1)
- msgb_free(msg);
-
- return rc;
-}
-
-PCU will currently not work without getting a GSM time or BFI indidication.
-In order to fix this, i will discuss this on the mailing list.
-Andreas
-
-/* OpenBTS socket functions */
-
-// TODO: We should move this parameters to config file.
-#define PCU_L1_IF_PORT 5944
-
-/* data has arrived on the udp socket */
-static int udp_read_cb(struct osmo_fd *ofd)
-{
- struct msgb *msg = msgb_alloc_headroom(2048, 128, "udp_rx");
- struct l1fwd_hdl *l1fh = (l1fwd_hdl *)ofd->data;
- struct femtol1_hdl *fl1h = l1fh->fl1h;
- int rc;
-
- if (!msg)
- return -ENOMEM;
-
- msg->l1h = msg->data;
-
- l1fh->remote_sa_len = sizeof(l1fh->remote_sa);
- rc = recvfrom(ofd->fd, msg->l1h, msgb_tailroom(msg), 0,
- (struct sockaddr *) &l1fh->remote_sa, &l1fh->remote_sa_len);
- if (rc < 0) {
- perror("read from udp");
- msgb_free(msg);
- return rc;
- } else if (rc == 0) {
- perror("len=0 read from udp");
- msgb_free(msg);
- return rc;
- }
- msgb_put(msg, rc);
-
- rc = pcu_l1if_handle_l1prim(fl1h, msg);
- return rc;
-}
-
-/* callback when we can write to the UDP socket */
-static int udp_write_cb(struct osmo_fd *ofd, struct msgb *msg)
-{
- int rc;
- struct l1fwd_hdl *l1fh = (l1fwd_hdl *)ofd->data;
-
- //DEBUGP(DGPRS, "UDP: Writing %u bytes for MQ_L1_WRITE queue\n", msgb_l1len(msg));
-
- rc = sendto(ofd->fd, msg->l1h, msgb_l1len(msg), 0,
- (const struct sockaddr *)&l1fh->remote_sa, l1fh->remote_sa_len);
- if (rc < 0) {
- LOGP(DPCU, LOGL_ERROR, "error writing to L1 msg_queue: %s\n",
- strerror(errno));
- return rc;
- } else if (rc < (int)msgb_l1len(msg)) {
- LOGP(DPCU, LOGL_ERROR, "short write to L1 msg_queue: "
- "%u < %u\n", rc, msgb_l1len(msg));
- return -EIO;
- }
-
- return 0;
-}
-
-// TODO: We should move this parameters to config file.
-#define SGSN_IP 127.0.0.1
-#define SGSN_PORT 23000
-#define NSEI 3
-#define NSVCI 4
-
-#define BVCI 7
-
-#define CELL_ID 0
-#define MNC 2
-#define MCC 262
-#define PCU_LAC 1
-#define PCU_RAC 0
-
-int pcu_l1if_open()
-{
- //struct l1fwd_hdl *l1fh;
- struct femtol1_hdl *fl1h;
- int rc;
-
- struct sockaddr_in dest;
- dest.sin_family = AF_INET;
- dest.sin_port = htons(SGSN_PORT);
- inet_aton(SGSN_IP, &dest.sin_addr);
-
- rc = gprs_bssgp_create(ntohl(dest.sin_addr.s_addr), SGSN_PORT, NSEI, NSVCI, BVCI, MCC, MNC, PCU_LAC, PCU_RAC, CELL_ID);
- if (rc < 0)
- return rc;
-
- /* allocate new femtol1_handle */
- fl1h = talloc_zero(NULL, struct femtol1_hdl);
- INIT_LLIST_HEAD(&fl1h->wlc_list);
-
- l1fh->fl1h = fl1h;
- fl1h->priv = l1fh;
-
- struct osmo_wqueue * queue = &((l1fh->fl1h)->write_q);
- osmo_wqueue_init(queue, 10);
- queue->bfd.when |= BSC_FD_READ;
- queue->bfd.data = l1fh;
- queue->bfd.priv_nr = 0;
-
- /* Open UDP */
- struct osmo_wqueue *wq = &l1fh->udp_wq;
-
- osmo_wqueue_init(wq, 10);
- wq->write_cb = udp_write_cb;
- wq->read_cb = udp_read_cb;
- wq->bfd.when |= BSC_FD_READ;
- wq->bfd.data = l1fh;
- wq->bfd.priv_nr = 0;
- rc = osmo_sock_init_ofd(&wq->bfd, AF_UNSPEC, SOCK_DGRAM,
- IPPROTO_UDP, NULL, PCU_L1_IF_PORT,
- OSMO_SOCK_F_BIND);
- if (rc < 0) {
- perror("sock_init");
- exit(1);
- }
-
- return 0;
-}
-
-void pcu_l1if_close(void)
-{
- gprs_bssgp_destroy();
-
- /* FIXME: cleanup l1if */
- talloc_free(fl1h);
-}
diff --git a/src/pcu_l1_if.h b/src/pcu_l1_if.h
index 2aac553..f3ac597 100644
--- a/src/pcu_l1_if.h
+++ b/src/pcu_l1_if.h
@@ -36,9 +36,12 @@
void pcu_l1if_tx_ptcch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
uint32_t fn, uint8_t block_nr);
void pcu_l1if_tx_agch(bitvec * block, int len);
+
void pcu_l1if_tx_pch(bitvec * block, int plen, char *imsi);
int pcu_l1if_open(void);
void pcu_l1if_close(void);
+int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim);
+int pcu_sock_send(struct msgb *msg);
#endif // PCU_L1_IF_H
diff --git a/src/pcu_main.cpp b/src/pcu_main.cpp
index ea507e5..6c30c1e 100644
--- a/src/pcu_main.cpp
+++ b/src/pcu_main.cpp
@@ -105,8 +105,8 @@
"together.\n");
exit(0);
}
-
rc = pcu_l1if_open();
+
if (rc < 0)
return rc;
@@ -124,4 +124,3 @@
return 0;
}
-
diff --git a/src/pcuif_proto.h b/src/pcuif_proto.h
new file mode 100644
index 0000000..3609f79
--- /dev/null
+++ b/src/pcuif_proto.h
@@ -0,0 +1,137 @@
+#ifndef _PCUIF_PROTO_H
+#define _PCUIF_PROTO_H
+
+/* msg_type */
+#define PCU_IF_MSG_DATA_REQ 0x00 /* send data to given channel */
+#define PCU_IF_MSG_DATA_IND 0x02 /* receive data from given channel */
+#define PCU_IF_MSG_RTS_REQ 0x10 /* ready to send data to given chan. */
+#define PCU_IF_MSG_RACH_IND 0x22 /* receive rach */
+#define PCU_IF_MSG_INFO_IND 0x32 /* retrieve BTS info */
+#define PCU_IF_MSG_ACT_REQ 0x40 /* activate/deactivate PDCH */
+#define PCU_IF_MSG_TIME_IND 0x52 /* gsm time indication */
+
+/* sapi */
+#define PCU_IF_SAPI_RACH 0x01 /* channel request on CCCH */
+#define PCU_IF_SAPI_AGCH 0x02 /* assignment on CCCH */
+#define PCU_IF_SAPI_PCH 0x03 /* paging request on CCCH */
+#define PCU_IF_SAPI_BCCH 0x04 /* SI on BCCH */
+#define PCU_IF_SAPI_PDTCH 0x05 /* packet data/control/ccch block */
+#define PCU_IF_SAPI_PRACH 0x06 /* packet random access channel */
+#define PCU_IF_SAPI_PTCCH 0x07 /* packet TA control channel */
+
+/* flags */
+#define PCU_IF_FLAG_ACTIVE (1 << 0)/* BTS is active */
+#define PCU_IF_FLAG_SYSMO (1 << 1)/* access PDCH of sysmoBTS directly */
+#define PCU_IF_FLAG_CS1 (1 << 16)
+#define PCU_IF_FLAG_CS2 (1 << 17)
+#define PCU_IF_FLAG_CS3 (1 << 18)
+#define PCU_IF_FLAG_CS4 (1 << 19)
+#define PCU_IF_FLAG_MCS1 (1 << 20)
+#define PCU_IF_FLAG_MCS2 (1 << 21)
+#define PCU_IF_FLAG_MCS3 (1 << 22)
+#define PCU_IF_FLAG_MCS4 (1 << 23)
+#define PCU_IF_FLAG_MCS5 (1 << 24)
+#define PCU_IF_FLAG_MCS6 (1 << 25)
+#define PCU_IF_FLAG_MCS7 (1 << 26)
+#define PCU_IF_FLAG_MCS8 (1 << 27)
+#define PCU_IF_FLAG_MCS9 (1 << 28)
+
+struct gsm_pcu_if_data {
+ uint8_t sapi;
+ uint8_t len;
+ uint8_t data[162];
+ uint32_t fn;
+ uint16_t arfcn;
+ uint8_t trx_nr;
+ uint8_t ts_nr;
+ uint8_t block_nr;
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_rts_req {
+ uint8_t sapi;
+ uint8_t spare[3];
+ uint32_t fn;
+ uint16_t arfcn;
+ uint8_t trx_nr;
+ uint8_t ts_nr;
+ uint8_t block_nr;
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_rach_ind {
+ uint8_t sapi;
+ uint8_t ra;
+ int16_t qta;
+ uint32_t fn;
+ uint16_t arfcn;
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_info_trx {
+ uint16_t arfcn;
+ uint8_t pdch_mask; /* PDCH channels per TS */
+ uint8_t spare;
+ uint8_t tsc[8]; /* TSC per channel */
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_info_ind {
+ uint32_t flags;
+ struct gsm_pcu_if_info_trx trx[8]; /* TRX infos per BTS */
+ /* RAI */
+ uint16_t mcc, mnc, lac, rac;
+ /* NSE */
+ uint16_t nsei;
+ uint8_t nse_timer[7];
+ uint8_t cell_timer[11];
+ /* cell */
+ uint16_t cell_id;
+ uint16_t repeat_time;
+ uint8_t repeat_count;
+ uint16_t bvci;
+ uint8_t t3142;
+ uint8_t t3169;
+ uint8_t t3191;
+ uint8_t t3193_10ms;
+ uint8_t t3195;
+ uint8_t n3101;
+ uint8_t n3103;
+ uint8_t n3105;
+ uint8_t cv_countdown;
+ uint16_t dl_tbf_ext;
+ uint16_t ul_tbf_ext;
+ uint8_t initial_cs;
+ uint8_t initial_mcs;
+ /* NSVC */
+ uint16_t nsvci[2];
+ uint16_t local_port[2];
+ uint16_t remote_port[2];
+ uint32_t remote_ip[2];
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_act_req {
+ uint8_t activate;
+ uint8_t trx_nr;
+ uint8_t ts_nr;
+ uint8_t spare;
+} __attribute__ ((packed));
+
+struct gsm_pcu_if_time_ind {
+ uint32_t fn;
+} __attribute__ ((packed));
+
+struct gsm_pcu_if {
+ /* context based information */
+ uint8_t msg_type; /* message type */
+ uint8_t bts_nr; /* bts number */
+ uint8_t spare[2];
+
+ union {
+ struct gsm_pcu_if_data data_req;
+ struct gsm_pcu_if_data data_ind;
+ struct gsm_pcu_if_rts_req rts_req;
+ struct gsm_pcu_if_rach_ind rach_ind;
+ struct gsm_pcu_if_info_ind info_ind;
+ struct gsm_pcu_if_act_req act_req;
+ struct gsm_pcu_if_time_ind time_ind;
+ } u;
+} __attribute__ ((packed));
+
+#endif /* _PCUIF_PROTO_H */
diff --git a/src/sysmo_l1_if.cpp b/src/sysmo_l1_if.cpp
deleted file mode 100644
index ceb28d2..0000000
--- a/src/sysmo_l1_if.cpp
+++ /dev/null
@@ -1,716 +0,0 @@
-/* sysmo_l1_if.cpp
- *
- * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-extern "C" {
-#include <osmocom/core/talloc.h>
-#include <osmocom/core/select.h>
-#include <osmocom/core/msgb.h>
-}
-
-#include <gprs_rlcmac.h>
-#include <pcu_l1_if.h>
-#include <gprs_debug.h>
-#include <gprs_bssgp_pcu.h>
-#include "../../osmo-bts/include/osmo-bts/pcuif_proto.h"
-
-static int pcu_sock_send(struct msgb *msg);
-static void pcu_sock_timeout(void *_priv);
-
-// Variable for storage current FN.
-int frame_number;
-
-int get_current_fn()
-{
- return frame_number;
-}
-
-void set_current_fn(int fn)
-{
- frame_number = fn;
-}
-
-/*
- * PCU messages
- */
-
-struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr)
-{
- struct msgb *msg;
- struct gsm_pcu_if *pcu_prim;
-
- msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx");
- if (!msg)
- return NULL;
- msgb_put(msg, sizeof(struct gsm_pcu_if));
- pcu_prim = (struct gsm_pcu_if *) msg->data;
- pcu_prim->msg_type = msg_type;
- pcu_prim->bts_nr = bts_nr;
-
- return msg;
-}
-
-static int pcu_tx_act_req(uint8_t trx, uint8_t ts, uint8_t activate)
-{
- struct msgb *msg;
- struct gsm_pcu_if *pcu_prim;
- struct gsm_pcu_if_act_req *act_req;
-
- LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n",
- (activate) ? "activate" : "deactivate", trx, ts);
-
- msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0);
- if (!msg)
- return -ENOMEM;
- pcu_prim = (struct gsm_pcu_if *) msg->data;
- act_req = &pcu_prim->u.act_req;
- act_req->activate = activate;
- act_req->trx_nr = trx;
- act_req->ts_nr = ts;
-
- return pcu_sock_send(msg);
-}
-
-static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi,
- uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data,
- uint8_t len)
-{
- struct msgb *msg;
- struct gsm_pcu_if *pcu_prim;
- struct gsm_pcu_if_data *data_req;
-
- LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d "
- "arfcn=%d fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn,
- block_nr, osmo_hexdump(data, len));
-
- msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0);
- if (!msg)
- return -ENOMEM;
- pcu_prim = (struct gsm_pcu_if *) msg->data;
- data_req = &pcu_prim->u.data_req;
-
- data_req->sapi = sapi;
- data_req->fn = fn;
- data_req->arfcn = arfcn;
- data_req->trx_nr = trx;
- data_req->ts_nr = ts;
- data_req->block_nr = block_nr;
- memcpy(data_req->data, data, len);
- data_req->len = len;
-
- return pcu_sock_send(msg);
-}
-
-void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
- uint32_t fn, uint8_t block_nr)
-{
- pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr,
- msg->data, msg->len);
- msgb_free(msg);
-}
-
-void pcu_l1if_tx_ptcch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn,
- uint32_t fn, uint8_t block_nr)
-{
- pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr,
- msg->data, msg->len);
- msgb_free(msg);
-}
-
-void pcu_l1if_tx_agch(bitvec * block, int plen)
-{
- uint8_t data[23]; /* prefix PLEN */
-
- /* FIXME: why does OpenBTS has no PLEN and no fill in message? */
- bitvec_pack(block, data + 1);
- data[0] = (plen << 2) | 0x01;
- pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, 23);
-}
-
-void pcu_l1if_tx_pch(bitvec * block, int plen, char *imsi)
-{
- uint8_t data[23+3]; /* prefix PLEN */
-
- /* paging group */
- if (!imsi || strlen(imsi) < 3)
- return;
- imsi += strlen(imsi) - 3;
- data[0] = imsi[0];
- data[1] = imsi[1];
- data[2] = imsi[2];
-
- bitvec_pack(block, data + 3+1);
- data[3] = (plen << 2) | 0x01;
- pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, 23+3);
-}
-
-static void pcu_l1if_tx_bcch(uint8_t *data, int len)
-{
- pcu_tx_data_req(0, 0, PCU_IF_SAPI_BCCH, 0, 0, 0, data, len);
-}
-
-static int pcu_rx_data_ind(struct gsm_pcu_if_data *data_ind)
-{
- int rc = 0;
-
- LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d "
- "block=%d data=%s\n", data_ind->sapi,
- data_ind->arfcn, data_ind->block_nr,
- osmo_hexdump(data_ind->data, data_ind->len));
-
- switch (data_ind->sapi) {
- case PCU_IF_SAPI_PDTCH:
- rc = gprs_rlcmac_rcv_block(data_ind->data, data_ind->len,
- data_ind->fn);
- break;
- default:
- LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with "
- "unsupported sapi %d\n", data_ind->sapi);
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-static int pcu_rx_rts_req(struct gsm_pcu_if_rts_req *rts_req)
-{
- int rc = 0;
-
- LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d "
- "arfcn=%d fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr,
- rts_req->sapi, rts_req->arfcn, rts_req->fn, rts_req->block_nr);
-
- switch (rts_req->sapi) {
- case PCU_IF_SAPI_PDTCH:
- gprs_rlcmac_rcv_rts_block(rts_req->trx_nr, rts_req->ts_nr,
- rts_req->arfcn, rts_req->fn, rts_req->block_nr);
- break;
- case PCU_IF_SAPI_PTCCH:
- /* FIXME */
- {
- struct msgb *msg = msgb_alloc(23, "l1_prim");
- memset(msgb_put(msg, 23), 0x2b, 23);
- pcu_l1if_tx_ptcch(msg, rts_req->trx_nr, rts_req->ts_nr,
- rts_req->arfcn, rts_req->fn, rts_req->block_nr);
- }
- break;
- default:
- LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with "
- "unsupported sapi %d\n", rts_req->sapi);
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind)
-{
- int rc = 0;
-
- LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d "
- "qta=%d, ra=%d, fn=%d\n", rach_ind->sapi, rach_ind->qta,
- rach_ind->ra, rach_ind->fn);
-
- switch (rach_ind->sapi) {
- case PCU_IF_SAPI_RACH:
- rc = gprs_rlcmac_rcv_rach(rach_ind->ra, rach_ind->fn,
- rach_ind->qta);
- break;
- default:
- LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with "
- "unsupported sapi %d\n", rach_ind->sapi);
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-static int pcu_rx_info_ind(struct gsm_pcu_if_info_ind *info_ind)
-{
- struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
- int rc = 0;
- int trx, ts, tfi;
- struct gprs_rlcmac_tbf *tbf;
- int i;
-
- LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n");
-
- if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) {
- LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n");
-bssgp_failed:
- /* free all TBF */
- for (trx = 0; trx < 8; trx++) {
- bts->trx[trx].arfcn = info_ind->trx[trx].arfcn;
- for (ts = 0; ts < 8; ts++) {
- for (tfi = 0; tfi < 32; tfi++) {
- tbf = bts->trx[trx].pdch[ts].tbf[tfi];
- if (tbf)
- tbf_free(tbf);
- }
- }
- }
- gprs_bssgp_destroy();
- return 0;
- }
- LOGP(DL1IF, LOGL_INFO, "BTS available\n");
- LOGP(DL1IF, LOGL_DEBUG, " mcc=%d\n", info_ind->mcc);
- LOGP(DL1IF, LOGL_DEBUG, " mnc=%d\n", info_ind->mnc);
- LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac);
- LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac);
- LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id);
- LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei);
- LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n",
- info_ind->nse_timer[0], info_ind->nse_timer[1],
- info_ind->nse_timer[2], info_ind->nse_timer[3],
- info_ind->nse_timer[4], info_ind->nse_timer[5],
- info_ind->nse_timer[6]);
- LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d "
- "%d\n",
- info_ind->cell_timer[0], info_ind->cell_timer[1],
- info_ind->cell_timer[2], info_ind->cell_timer[3],
- info_ind->cell_timer[4], info_ind->cell_timer[5],
- info_ind->cell_timer[6], info_ind->cell_timer[7],
- info_ind->cell_timer[8], info_ind->cell_timer[9],
- info_ind->cell_timer[10]);
- LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time);
- LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count);
- LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci);
- LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142);
- LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169);
- LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191);
- LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10);
- LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195);
- LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101);
- LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103);
- LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105);
- LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown);
- LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext);
- LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext);
- for (i = 0; i < 4; i++) {
- if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i)))
- LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1);
- }
- for (i = 0; i < 9; i++) {
- if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i)))
- LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1);
- }
- LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs);
- LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs);
- LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]);
- LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]);
- LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]);
- LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%d\n", info_ind->remote_ip[0]);
-
- rc = gprs_bssgp_create(info_ind->remote_ip[0], info_ind->remote_port[0],
- info_ind->nsei, info_ind->nsvci[0], info_ind->bvci,
- info_ind->mcc, info_ind->mnc, info_ind->lac, info_ind->rac,
- info_ind->cell_id);
- if (rc < 0) {
- LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n");
- goto bssgp_failed;
- }
-
- bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1);
- bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2);
- bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3);
- bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4);
- if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4)
- bts->cs1 = 1;
- if (info_ind->t3142) { /* if timer values are set */
- bts->t3142 = info_ind->t3142;
- bts->t3169 = info_ind->t3169;
- bts->t3191 = info_ind->t3191;
- bts->t3193_msec = info_ind->t3193_10ms * 10;
- bts->t3195 = info_ind->t3195;
- bts->n3101 = info_ind->n3101;
- bts->n3103 = info_ind->n3103;
- bts->n3105 = info_ind->n3105;
- }
- if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4)
- bts->initial_cs = 1;
- else
- bts->initial_cs = info_ind->initial_cs;
-
- for (trx = 0; trx < 8; trx++) {
- bts->trx[trx].arfcn = info_ind->trx[trx].arfcn;
- for (ts = 0; ts < 8; ts++) {
- if ((info_ind->trx[trx].pdch_mask & (1 << ts))) {
- /* FIXME: activate dynamically at RLCMAC */
- if (!bts->trx[trx].pdch[ts].enable)
- pcu_tx_act_req(trx, ts, 1);
- bts->trx[trx].pdch[ts].enable = 1;
- bts->trx[trx].pdch[ts].tsc =
- info_ind->trx[trx].tsc[ts];
- LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n",
- trx, ts);
- } else {
- if (bts->trx[trx].pdch[ts].enable)
- pcu_tx_act_req(trx, ts, 0);
- bts->trx[trx].pdch[ts].enable = 0;
- /* kick all tbf FIXME: multislot */
- for (tfi = 0; tfi < 32; tfi++) {
- tbf = bts->trx[trx].pdch[ts].tbf[tfi];
- if (tbf)
- tbf_free(tbf);
- }
- }
- }
- }
-
- return rc;
-}
-
-static int pcu_rx_time_ind(struct gsm_pcu_if_time_ind *time_ind)
-{
- struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
- int trx, ts, tfi;
- struct gprs_rlcmac_tbf *tbf;
- uint32_t elapsed;
- uint8_t fn13 = time_ind->fn % 13;
-
- /* omit frame numbers not starting at a MAC block */
- if (fn13 != 0 && fn13 != 4 && fn13 != 8)
- return 0;
-
- LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n",
- time_ind->fn % 52);
-
- set_current_fn(time_ind->fn);
-
- /* check for poll timeout */
- for (trx = 0; trx < 8; trx++) {
- for (ts = 0; ts < 8; ts++) {
- for (tfi = 0; tfi < 32; tfi++) {
- tbf = bts->trx[trx].pdch[ts].tbf[tfi];
- if (!tbf)
- continue;
- if (tbf->poll_state != GPRS_RLCMAC_POLL_SCHED)
- continue;
- elapsed = (frame_number - tbf->poll_fn)
- % 2715648;
- if (elapsed >= 20 && elapsed < 200)
- gprs_rlcmac_poll_timeout(tbf);
- }
- }
- }
-
- return 0;
-}
-
-static int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim)
-{
- int rc = 0;
-
- switch (msg_type) {
- case PCU_IF_MSG_DATA_IND:
- rc = pcu_rx_data_ind(&pcu_prim->u.data_ind);
- break;
- case PCU_IF_MSG_RTS_REQ:
- rc = pcu_rx_rts_req(&pcu_prim->u.rts_req);
- break;
- case PCU_IF_MSG_RACH_IND:
- rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind);
- break;
- case PCU_IF_MSG_INFO_IND:
- rc = pcu_rx_info_ind(&pcu_prim->u.info_ind);
- break;
- case PCU_IF_MSG_TIME_IND:
- rc = pcu_rx_time_ind(&pcu_prim->u.time_ind);
- break;
- default:
- LOGP(DL1IF, LOGL_ERROR, "Received unknwon PCU msg type %d\n",
- msg_type);
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-/*
- * SYSMO-PCU socket functions
- */
-
-struct pcu_sock_state {
- struct osmo_fd conn_bfd; /* fd for connection to lcr */
- struct osmo_timer_list timer; /* socket connect retry timer */
- struct llist_head upqueue; /* queue for sending messages */
-} *pcu_sock_state = NULL;
-
-static int pcu_sock_send(struct msgb *msg)
-{
- struct pcu_sock_state *state = pcu_sock_state;
- struct osmo_fd *conn_bfd;
-
- if (!state) {
- LOGP(DL1IF, LOGL_NOTICE, "PCU socket not created, dropping "
- "message\n");
- return -EINVAL;
- }
- conn_bfd = &state->conn_bfd;
- if (conn_bfd->fd <= 0) {
- LOGP(DL1IF, LOGL_NOTICE, "PCU socket not connected, dropping "
- "message\n");
- return -EIO;
- }
- msgb_enqueue(&state->upqueue, msg);
- conn_bfd->when |= BSC_FD_WRITE;
-
- return 0;
-}
-
-static void pcu_sock_close(struct pcu_sock_state *state)
-{
- struct osmo_fd *bfd = &state->conn_bfd;
- struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
- struct gprs_rlcmac_tbf *tbf;
- uint8_t trx, ts, tfi;
-
- LOGP(DL1IF, LOGL_NOTICE, "PCU socket has LOST connection\n");
-
- close(bfd->fd);
- bfd->fd = -1;
- osmo_fd_unregister(bfd);
-
- /* flush the queue */
- while (!llist_empty(&state->upqueue)) {
- struct msgb *msg = msgb_dequeue(&state->upqueue);
- msgb_free(msg);
- }
-
- /* disable all slots, kick all TBFs */
- for (trx = 0; trx < 8; trx++) {
- for (ts = 0; ts < 8; ts++) {
- bts->trx[trx].pdch[ts].enable = 0;
- for (tfi = 0; tfi < 32; tfi++) {
- tbf = bts->trx[trx].pdch[ts].tbf[tfi];
- if (tbf)
- tbf_free(tbf);
- }
- }
- }
-
- gprs_bssgp_destroy();
-
- state->timer.cb = pcu_sock_timeout;
- osmo_timer_schedule(&state->timer, 5, 0);
-}
-
-static int pcu_sock_read(struct osmo_fd *bfd)
-{
- struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data;
- struct gsm_pcu_if *pcu_prim;
- struct msgb *msg;
- int rc;
-
- msg = msgb_alloc(sizeof(*pcu_prim), "pcu_sock_rx");
- if (!msg)
- return -ENOMEM;
-
- pcu_prim = (struct gsm_pcu_if *) msg->tail;
-
- rc = recv(bfd->fd, msg->tail, msgb_tailroom(msg), 0);
- if (rc == 0)
- goto close;
-
- if (rc < 0) {
- if (errno == EAGAIN)
- return 0;
- goto close;
- }
-
- rc = pcu_rx(pcu_prim->msg_type, pcu_prim);
-
- /* as we always synchronously process the message in pcu_rx() and
- * its callbacks, we can free the message here. */
- msgb_free(msg);
-
- return rc;
-
-close:
- msgb_free(msg);
- pcu_sock_close(state);
- return -1;
-}
-
-static int pcu_sock_write(struct osmo_fd *bfd)
-{
- struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data;
- int rc;
-
- while (!llist_empty(&state->upqueue)) {
- struct msgb *msg, *msg2;
- struct gsm_pcu_if *pcu_prim;
-
- /* peek at the beginning of the queue */
- msg = llist_entry(state->upqueue.next, struct msgb, list);
- pcu_prim = (struct gsm_pcu_if *)msg->data;
-
- bfd->when &= ~BSC_FD_WRITE;
-
- /* bug hunter 8-): maybe someone forgot msgb_put(...) ? */
- if (!msgb_length(msg)) {
- LOGP(DL1IF, LOGL_ERROR, "message type (%d) with ZERO "
- "bytes!\n", pcu_prim->msg_type);
- goto dontsend;
- }
-
- /* try to send it over the socket */
- rc = write(bfd->fd, msgb_data(msg), msgb_length(msg));
- if (rc == 0)
- goto close;
- if (rc < 0) {
- if (errno == EAGAIN) {
- bfd->when |= BSC_FD_WRITE;
- break;
- }
- goto close;
- }
-
-dontsend:
- /* _after_ we send it, we can deueue */
- msg2 = msgb_dequeue(&state->upqueue);
- assert(msg == msg2);
- msgb_free(msg);
- }
- return 0;
-
-close:
- pcu_sock_close(state);
-
- return -1;
-}
-
-static int pcu_sock_cb(struct osmo_fd *bfd, unsigned int flags)
-{
- int rc = 0;
-
- if (flags & BSC_FD_READ)
- rc = pcu_sock_read(bfd);
- if (rc < 0)
- return rc;
-
- if (flags & BSC_FD_WRITE)
- rc = pcu_sock_write(bfd);
-
- return rc;
-}
-
-int pcu_l1if_open(void)
-{
- struct pcu_sock_state *state;
- struct osmo_fd *bfd;
- struct sockaddr_un local;
- unsigned int namelen;
- int rc;
-
- state = pcu_sock_state;
- if (!state) {
- state = talloc_zero(NULL, struct pcu_sock_state);
- if (!state)
- return -ENOMEM;
- INIT_LLIST_HEAD(&state->upqueue);
- }
-
- bfd = &state->conn_bfd;
-
- bfd->fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
- if (bfd->fd < 0) {
- LOGP(DL1IF, LOGL_ERROR, "Failed to create PCU-SYSMO socket.\n");
- talloc_free(state);
- return -1;
- }
-
- local.sun_family = AF_UNIX;
- strncpy(local.sun_path, "/tmp/pcu_bts", sizeof(local.sun_path));
- local.sun_path[sizeof(local.sun_path) - 1] = '\0';
-
- /* we use the same magic that X11 uses in Xtranssock.c for
- * calculating the proper length of the sockaddr */
-#if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
- local.sun_len = strlen(local.sun_path);
-#endif
-#if defined(BSD44SOCKETS) || defined(SUN_LEN)
- namelen = SUN_LEN(&local);
-#else
- namelen = strlen(local.sun_path) +
- offsetof(struct sockaddr_un, sun_path);
-#endif
- rc = connect(bfd->fd, (struct sockaddr *) &local, namelen);
- if (rc != 0) {
- LOGP(DL1IF, LOGL_ERROR, "Failed to Connect the PCU-SYSMO "
- "socket, delaying... '%s'\n", local.sun_path);
- close(bfd->fd);
- bfd->fd = -1;
- state->timer.cb = pcu_sock_timeout;
- osmo_timer_schedule(&state->timer, 5, 0);
- return 0;
- }
-
- bfd->when = BSC_FD_READ;
- bfd->cb = pcu_sock_cb;
- bfd->data = state;
-
- rc = osmo_fd_register(bfd);
- if (rc < 0) {
- LOGP(DL1IF, LOGL_ERROR, "Could not register PCU fd: %d\n", rc);
- close(bfd->fd);
- talloc_free(state);
- return rc;
- }
-
- LOGP(DL1IF, LOGL_NOTICE, "PCU-SYSMO socket has been connected\n");
-
- pcu_sock_state = state;
-
- return 0;
-}
-
-void pcu_l1if_close(void)
-{
- struct pcu_sock_state *state = pcu_sock_state;
- struct osmo_fd *bfd;
-
- if (!state)
- return;
-
- if (osmo_timer_pending(&state->timer))
- osmo_timer_del(&state->timer);
-
- bfd = &state->conn_bfd;
- if (bfd->fd > 0)
- pcu_sock_close(state);
- talloc_free(state);
- pcu_sock_state = NULL;
-}
-
-static void pcu_sock_timeout(void *_priv)
-{
- pcu_l1if_open();
-}
-
-
-
-
diff --git a/src/sysmo_sock.cpp b/src/sysmo_sock.cpp
new file mode 100644
index 0000000..8d83ca2
--- /dev/null
+++ b/src/sysmo_sock.cpp
@@ -0,0 +1,303 @@
+/* sysmo_sock.cpp
+ *
+ * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+extern "C" {
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/msgb.h>
+}
+
+#include <gprs_rlcmac.h>
+#include <pcu_l1_if.h>
+#include <gprs_debug.h>
+#include <gprs_bssgp_pcu.h>
+#include <pcuif_proto.h>
+
+
+/*
+ * SYSMO-PCU socket functions
+ */
+
+struct pcu_sock_state {
+ struct osmo_fd conn_bfd; /* fd for connection to lcr */
+ struct osmo_timer_list timer; /* socket connect retry timer */
+ struct llist_head upqueue; /* queue for sending messages */
+} *pcu_sock_state = NULL;
+
+static void pcu_sock_timeout(void *_priv);
+
+int pcu_sock_send(struct msgb *msg)
+{
+ struct pcu_sock_state *state = pcu_sock_state;
+ struct osmo_fd *conn_bfd;
+
+ if (!state) {
+ LOGP(DL1IF, LOGL_NOTICE, "PCU socket not created, dropping "
+ "message\n");
+ return -EINVAL;
+ }
+ conn_bfd = &state->conn_bfd;
+ if (conn_bfd->fd <= 0) {
+ LOGP(DL1IF, LOGL_NOTICE, "PCU socket not connected, dropping "
+ "message\n");
+ return -EIO;
+ }
+ msgb_enqueue(&state->upqueue, msg);
+ conn_bfd->when |= BSC_FD_WRITE;
+
+ return 0;
+}
+
+static void pcu_sock_close(struct pcu_sock_state *state)
+{
+ struct osmo_fd *bfd = &state->conn_bfd;
+ struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts;
+ struct gprs_rlcmac_tbf *tbf;
+ uint8_t trx, ts, tfi;
+
+ LOGP(DL1IF, LOGL_NOTICE, "PCU socket has LOST connection\n");
+
+ close(bfd->fd);
+ bfd->fd = -1;
+ osmo_fd_unregister(bfd);
+
+ /* flush the queue */
+ while (!llist_empty(&state->upqueue)) {
+ struct msgb *msg = msgb_dequeue(&state->upqueue);
+ msgb_free(msg);
+ }
+
+ /* disable all slots, kick all TBFs */
+ for (trx = 0; trx < 8; trx++) {
+ for (ts = 0; ts < 8; ts++) {
+ bts->trx[trx].pdch[ts].enable = 0;
+ for (tfi = 0; tfi < 32; tfi++) {
+ tbf = bts->trx[trx].pdch[ts].tbf[tfi];
+ if (tbf)
+ tbf_free(tbf);
+ }
+ }
+ }
+
+ gprs_bssgp_destroy();
+
+ state->timer.cb = pcu_sock_timeout;
+ osmo_timer_schedule(&state->timer, 5, 0);
+}
+
+static int pcu_sock_read(struct osmo_fd *bfd)
+{
+ struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data;
+ struct gsm_pcu_if *pcu_prim;
+ struct msgb *msg;
+ int rc;
+
+ msg = msgb_alloc(sizeof(*pcu_prim), "pcu_sock_rx");
+ if (!msg)
+ return -ENOMEM;
+
+ pcu_prim = (struct gsm_pcu_if *) msg->tail;
+
+ rc = recv(bfd->fd, msg->tail, msgb_tailroom(msg), 0);
+ if (rc == 0)
+ goto close;
+
+ if (rc < 0) {
+ if (errno == EAGAIN)
+ return 0;
+ goto close;
+ }
+
+ rc = pcu_rx(pcu_prim->msg_type, pcu_prim);
+
+ /* as we always synchronously process the message in pcu_rx() and
+ * its callbacks, we can free the message here. */
+ msgb_free(msg);
+
+ return rc;
+
+close:
+ msgb_free(msg);
+ pcu_sock_close(state);
+ return -1;
+}
+
+static int pcu_sock_write(struct osmo_fd *bfd)
+{
+ struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data;
+ int rc;
+
+ while (!llist_empty(&state->upqueue)) {
+ struct msgb *msg, *msg2;
+ struct gsm_pcu_if *pcu_prim;
+
+ /* peek at the beginning of the queue */
+ msg = llist_entry(state->upqueue.next, struct msgb, list);
+ pcu_prim = (struct gsm_pcu_if *)msg->data;
+
+ bfd->when &= ~BSC_FD_WRITE;
+
+ /* bug hunter 8-): maybe someone forgot msgb_put(...) ? */
+ if (!msgb_length(msg)) {
+ LOGP(DL1IF, LOGL_ERROR, "message type (%d) with ZERO "
+ "bytes!\n", pcu_prim->msg_type);
+ goto dontsend;
+ }
+
+ /* try to send it over the socket */
+ rc = write(bfd->fd, msgb_data(msg), msgb_length(msg));
+ if (rc == 0)
+ goto close;
+ if (rc < 0) {
+ if (errno == EAGAIN) {
+ bfd->when |= BSC_FD_WRITE;
+ break;
+ }
+ goto close;
+ }
+
+dontsend:
+ /* _after_ we send it, we can deueue */
+ msg2 = msgb_dequeue(&state->upqueue);
+ assert(msg == msg2);
+ msgb_free(msg);
+ }
+ return 0;
+
+close:
+ pcu_sock_close(state);
+
+ return -1;
+}
+
+static int pcu_sock_cb(struct osmo_fd *bfd, unsigned int flags)
+{
+ int rc = 0;
+
+ if (flags & BSC_FD_READ)
+ rc = pcu_sock_read(bfd);
+ if (rc < 0)
+ return rc;
+
+ if (flags & BSC_FD_WRITE)
+ rc = pcu_sock_write(bfd);
+
+ return rc;
+}
+
+int pcu_l1if_open(void)
+{
+ struct pcu_sock_state *state;
+ struct osmo_fd *bfd;
+ struct sockaddr_un local;
+ unsigned int namelen;
+ int rc;
+
+ state = pcu_sock_state;
+ if (!state) {
+ state = talloc_zero(NULL, struct pcu_sock_state);
+ if (!state)
+ return -ENOMEM;
+ INIT_LLIST_HEAD(&state->upqueue);
+ }
+
+ bfd = &state->conn_bfd;
+
+ bfd->fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
+ if (bfd->fd < 0) {
+ LOGP(DL1IF, LOGL_ERROR, "Failed to create PCU-SYSMO socket.\n");
+ talloc_free(state);
+ return -1;
+ }
+
+ local.sun_family = AF_UNIX;
+ strncpy(local.sun_path, "/tmp/pcu_bts", sizeof(local.sun_path));
+ local.sun_path[sizeof(local.sun_path) - 1] = '\0';
+
+ /* we use the same magic that X11 uses in Xtranssock.c for
+ * calculating the proper length of the sockaddr */
+#if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
+ local.sun_len = strlen(local.sun_path);
+#endif
+#if defined(BSD44SOCKETS) || defined(SUN_LEN)
+ namelen = SUN_LEN(&local);
+#else
+ namelen = strlen(local.sun_path) +
+ offsetof(struct sockaddr_un, sun_path);
+#endif
+ rc = connect(bfd->fd, (struct sockaddr *) &local, namelen);
+ if (rc != 0) {
+ LOGP(DL1IF, LOGL_ERROR, "Failed to Connect the PCU-SYSMO "
+ "socket, delaying... '%s'\n", local.sun_path);
+ close(bfd->fd);
+ bfd->fd = -1;
+ state->timer.cb = pcu_sock_timeout;
+ osmo_timer_schedule(&state->timer, 5, 0);
+ return 0;
+ }
+
+ bfd->when = BSC_FD_READ;
+ bfd->cb = pcu_sock_cb;
+ bfd->data = state;
+
+ rc = osmo_fd_register(bfd);
+ if (rc < 0) {
+ LOGP(DL1IF, LOGL_ERROR, "Could not register PCU fd: %d\n", rc);
+ close(bfd->fd);
+ talloc_free(state);
+ return rc;
+ }
+
+ LOGP(DL1IF, LOGL_NOTICE, "PCU-SYSMO socket has been connected\n");
+
+ pcu_sock_state = state;
+
+ return 0;
+}
+
+void pcu_l1if_close(void)
+{
+ struct pcu_sock_state *state = pcu_sock_state;
+ struct osmo_fd *bfd;
+
+ if (!state)
+ return;
+
+ if (osmo_timer_pending(&state->timer))
+ osmo_timer_del(&state->timer);
+
+ bfd = &state->conn_bfd;
+ if (bfd->fd > 0)
+ pcu_sock_close(state);
+ talloc_free(state);
+ pcu_sock_state = NULL;
+}
+
+static void pcu_sock_timeout(void *_priv)
+{
+ pcu_l1if_open();
+}