Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 1 | /* pcu_l1_if.c |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 2 | * |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 3 | * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
| 22 | #include <stdlib.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 23 | #include <string.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 24 | #include <errno.h> |
| 25 | #include <assert.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 26 | #include <sys/socket.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 27 | #include <sys/un.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 28 | #include <osmocom/core/talloc.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 29 | #include <osmocom/core/select.h> |
| 30 | #include <osmocom/core/msgb.h> |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 31 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 32 | #include <gprs_rlcmac.h> |
| 33 | #include <pcu_l1_if.h> |
| 34 | #include <gprs_debug.h> |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 35 | #include <gprs_bssgp_pcu.h> |
| 36 | #include <pcuif_proto.h> |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 37 | |
Andreas Eversberg | e266bd4 | 2012-07-13 14:00:21 +0200 | [diff] [blame] | 38 | extern void *tall_pcu_ctx; |
| 39 | |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 40 | // Variable for storage current FN. |
| 41 | int frame_number; |
| 42 | |
| 43 | int get_current_fn() |
| 44 | { |
| 45 | return frame_number; |
| 46 | } |
| 47 | |
| 48 | void set_current_fn(int fn) |
| 49 | { |
| 50 | frame_number = fn; |
| 51 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 52 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 53 | /* |
| 54 | * PCU messages |
| 55 | */ |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 56 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 57 | struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr) |
| 58 | { |
| 59 | struct msgb *msg; |
| 60 | struct gsm_pcu_if *pcu_prim; |
| 61 | |
| 62 | msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx"); |
| 63 | if (!msg) |
| 64 | return NULL; |
| 65 | msgb_put(msg, sizeof(struct gsm_pcu_if)); |
| 66 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 67 | pcu_prim->msg_type = msg_type; |
| 68 | pcu_prim->bts_nr = bts_nr; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 69 | |
| 70 | return msg; |
| 71 | } |
| 72 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 73 | static int pcu_tx_act_req(uint8_t trx, uint8_t ts, uint8_t activate) |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 74 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 75 | struct msgb *msg; |
| 76 | struct gsm_pcu_if *pcu_prim; |
| 77 | struct gsm_pcu_if_act_req *act_req; |
| 78 | |
| 79 | LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n", |
| 80 | (activate) ? "activate" : "deactivate", trx, ts); |
| 81 | |
| 82 | msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0); |
| 83 | if (!msg) |
| 84 | return -ENOMEM; |
| 85 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 86 | act_req = &pcu_prim->u.act_req; |
| 87 | act_req->activate = activate; |
| 88 | act_req->trx_nr = trx; |
| 89 | act_req->ts_nr = ts; |
| 90 | |
| 91 | return pcu_sock_send(msg); |
| 92 | } |
| 93 | |
| 94 | static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi, |
| 95 | uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data, |
| 96 | uint8_t len) |
| 97 | { |
| 98 | struct msgb *msg; |
| 99 | struct gsm_pcu_if *pcu_prim; |
| 100 | struct gsm_pcu_if_data *data_req; |
| 101 | |
| 102 | LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d " |
| 103 | "arfcn=%d fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn, |
| 104 | block_nr, osmo_hexdump(data, len)); |
| 105 | |
| 106 | msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0); |
| 107 | if (!msg) |
| 108 | return -ENOMEM; |
| 109 | pcu_prim = (struct gsm_pcu_if *) msg->data; |
| 110 | data_req = &pcu_prim->u.data_req; |
| 111 | |
| 112 | data_req->sapi = sapi; |
| 113 | data_req->fn = fn; |
| 114 | data_req->arfcn = arfcn; |
| 115 | data_req->trx_nr = trx; |
| 116 | data_req->ts_nr = ts; |
| 117 | data_req->block_nr = block_nr; |
| 118 | memcpy(data_req->data, data, len); |
| 119 | data_req->len = len; |
| 120 | |
| 121 | return pcu_sock_send(msg); |
| 122 | } |
| 123 | |
Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 124 | void pcu_l1if_tx_pdtch(struct msgb *msg, uint8_t trx, uint8_t ts, |
| 125 | uint16_t arfcn, uint32_t fn, uint8_t block_nr) |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 126 | { |
| 127 | pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr, |
| 128 | msg->data, msg->len); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 129 | msgb_free(msg); |
Ivan Kluchnikov | 4277f0c | 2012-04-12 14:24:35 +0400 | [diff] [blame] | 130 | } |
| 131 | |
Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 132 | void pcu_l1if_tx_ptcch(struct msgb *msg, uint8_t trx, uint8_t ts, |
| 133 | uint16_t arfcn, uint32_t fn, uint8_t block_nr) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 134 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 135 | pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr, |
| 136 | msg->data, msg->len); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 137 | msgb_free(msg); |
| 138 | } |
| 139 | |
Andreas Eversberg | fc1dfd8 | 2012-07-26 10:50:23 +0200 | [diff] [blame] | 140 | void pcu_l1if_tx_agch(uint8_t *data) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 141 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 142 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, 23); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 143 | } |
| 144 | |
Andreas Eversberg | fc1dfd8 | 2012-07-26 10:50:23 +0200 | [diff] [blame] | 145 | void pcu_l1if_tx_pch(uint8_t *data, char *imsi) |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 146 | { |
Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 147 | uint8_t pch_data[3+23]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 148 | |
| 149 | /* paging group */ |
| 150 | if (!imsi || strlen(imsi) < 3) |
| 151 | return; |
| 152 | imsi += strlen(imsi) - 3; |
Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 153 | pch_data[0] = imsi[0]; |
| 154 | pch_data[1] = imsi[1]; |
| 155 | pch_data[2] = imsi[2]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 156 | |
Andreas Eversberg | fc1dfd8 | 2012-07-26 10:50:23 +0200 | [diff] [blame] | 157 | memcpy(pch_data + 3, data, 23); |
Andreas Eversberg | 31dcbb6 | 2012-07-26 13:18:48 +0200 | [diff] [blame^] | 158 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, pch_data, 23+3); |
Ivan Kluchnikov | c7e7f68 | 2012-06-29 22:53:15 +0400 | [diff] [blame] | 159 | } |
| 160 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 161 | static void pcu_l1if_tx_bcch(uint8_t *data, int len) |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 162 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 163 | pcu_tx_data_req(0, 0, PCU_IF_SAPI_BCCH, 0, 0, 0, data, len); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 164 | } |
| 165 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 166 | static int pcu_rx_data_ind(struct gsm_pcu_if_data *data_ind) |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 167 | { |
| 168 | int rc = 0; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 169 | |
| 170 | LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d " |
| 171 | "block=%d data=%s\n", data_ind->sapi, |
| 172 | data_ind->arfcn, data_ind->block_nr, |
| 173 | osmo_hexdump(data_ind->data, data_ind->len)); |
| 174 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 175 | switch (data_ind->sapi) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 176 | case PCU_IF_SAPI_PDTCH: |
Andreas Eversberg | b0c7ea7 | 2012-07-13 14:46:03 +0200 | [diff] [blame] | 177 | rc = gprs_rlcmac_rcv_block(data_ind->trx_nr, data_ind->ts_nr, |
| 178 | data_ind->data, data_ind->len, data_ind->fn); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 179 | break; |
| 180 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 181 | LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with " |
| 182 | "unsupported sapi %d\n", data_ind->sapi); |
| 183 | rc = -EINVAL; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 184 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 185 | |
| 186 | return rc; |
| 187 | } |
| 188 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 189 | static int pcu_rx_rts_req(struct gsm_pcu_if_rts_req *rts_req) |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 190 | { |
| 191 | int rc = 0; |
Ivan Kluchnikov | 5310d45 | 2012-04-17 22:00:31 +0400 | [diff] [blame] | 192 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 193 | LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d " |
| 194 | "arfcn=%d fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr, |
| 195 | rts_req->sapi, rts_req->arfcn, rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 196 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 197 | switch (rts_req->sapi) { |
| 198 | case PCU_IF_SAPI_PDTCH: |
| 199 | gprs_rlcmac_rcv_rts_block(rts_req->trx_nr, rts_req->ts_nr, |
| 200 | rts_req->arfcn, rts_req->fn, rts_req->block_nr); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 201 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 202 | case PCU_IF_SAPI_PTCCH: |
| 203 | /* FIXME */ |
| 204 | { |
| 205 | struct msgb *msg = msgb_alloc(23, "l1_prim"); |
| 206 | memset(msgb_put(msg, 23), 0x2b, 23); |
| 207 | pcu_l1if_tx_ptcch(msg, rts_req->trx_nr, rts_req->ts_nr, |
| 208 | rts_req->arfcn, rts_req->fn, rts_req->block_nr); |
| 209 | } |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 210 | break; |
| 211 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 212 | LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with " |
| 213 | "unsupported sapi %d\n", rts_req->sapi); |
| 214 | rc = -EINVAL; |
| 215 | } |
| 216 | |
| 217 | return rc; |
| 218 | } |
| 219 | |
| 220 | static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind) |
| 221 | { |
| 222 | int rc = 0; |
| 223 | |
| 224 | LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d " |
| 225 | "qta=%d, ra=%d, fn=%d\n", rach_ind->sapi, rach_ind->qta, |
| 226 | rach_ind->ra, rach_ind->fn); |
| 227 | |
| 228 | switch (rach_ind->sapi) { |
| 229 | case PCU_IF_SAPI_RACH: |
| 230 | rc = gprs_rlcmac_rcv_rach(rach_ind->ra, rach_ind->fn, |
| 231 | rach_ind->qta); |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 232 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 233 | default: |
| 234 | LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with " |
| 235 | "unsupported sapi %d\n", rach_ind->sapi); |
| 236 | rc = -EINVAL; |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 237 | } |
| 238 | |
Ivan Kluchnikov | e3a0596 | 2012-03-18 15:48:51 +0400 | [diff] [blame] | 239 | return rc; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 240 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 241 | |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 242 | int flush_pdch(struct gprs_rlcmac_pdch *pdch) |
| 243 | { |
| 244 | uint8_t tfi; |
| 245 | struct gprs_rlcmac_tbf *tbf; |
| 246 | struct gprs_rlcmac_paging *pag; |
| 247 | |
| 248 | /* kick all TBF on slot */ |
| 249 | for (tfi = 0; tfi < 32; tfi++) { |
| 250 | tbf = pdch->ul_tbf[tfi]; |
| 251 | if (tbf) |
| 252 | tbf_free(tbf); |
| 253 | tbf = pdch->dl_tbf[tfi]; |
| 254 | if (tbf) |
| 255 | tbf_free(tbf); |
| 256 | } |
| 257 | /* flush all pending paging messages */ |
| 258 | while ((pag = gprs_rlcmac_dequeue_paging(pdch))) |
| 259 | talloc_free(pag); |
| 260 | |
| 261 | return 0; |
| 262 | } |
| 263 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 264 | static int pcu_rx_info_ind(struct gsm_pcu_if_info_ind *info_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 265 | { |
Andreas Eversberg | 5dac2f0 | 2012-06-27 15:52:04 +0200 | [diff] [blame] | 266 | struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 267 | struct gprs_rlcmac_pdch *pdch; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 268 | int rc = 0; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 269 | int trx, ts; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 270 | int i; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 271 | |
Andreas Eversberg | 8389fd0 | 2012-07-18 10:06:48 +0200 | [diff] [blame] | 272 | if (info_ind->version != PCU_IF_VERSION) { |
| 273 | fprintf(stderr, "PCU interface version number of BTS (%d) is " |
| 274 | "different (%d).\nPlease re-compile!\n", |
| 275 | info_ind->version, PCU_IF_VERSION); |
| 276 | exit(-1); |
| 277 | } |
| 278 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 279 | LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n"); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 280 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 281 | if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) { |
| 282 | LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n"); |
| 283 | bssgp_failed: |
| 284 | /* free all TBF */ |
| 285 | for (trx = 0; trx < 8; trx++) { |
| 286 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 287 | for (ts = 0; ts < 8; ts++) { |
| 288 | if (bts->trx[trx].pdch[ts].enable) |
| 289 | flush_pdch(&bts->trx[trx].pdch[ts]); |
| 290 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 291 | } |
| 292 | gprs_bssgp_destroy(); |
| 293 | return 0; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 294 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 295 | LOGP(DL1IF, LOGL_INFO, "BTS available\n"); |
| 296 | LOGP(DL1IF, LOGL_DEBUG, " mcc=%d\n", info_ind->mcc); |
| 297 | LOGP(DL1IF, LOGL_DEBUG, " mnc=%d\n", info_ind->mnc); |
| 298 | LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac); |
| 299 | LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac); |
| 300 | LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id); |
| 301 | LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei); |
| 302 | LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n", |
| 303 | info_ind->nse_timer[0], info_ind->nse_timer[1], |
| 304 | info_ind->nse_timer[2], info_ind->nse_timer[3], |
| 305 | info_ind->nse_timer[4], info_ind->nse_timer[5], |
| 306 | info_ind->nse_timer[6]); |
| 307 | LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d " |
| 308 | "%d\n", |
| 309 | info_ind->cell_timer[0], info_ind->cell_timer[1], |
| 310 | info_ind->cell_timer[2], info_ind->cell_timer[3], |
| 311 | info_ind->cell_timer[4], info_ind->cell_timer[5], |
| 312 | info_ind->cell_timer[6], info_ind->cell_timer[7], |
| 313 | info_ind->cell_timer[8], info_ind->cell_timer[9], |
| 314 | info_ind->cell_timer[10]); |
| 315 | LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time); |
| 316 | LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count); |
| 317 | LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci); |
| 318 | LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142); |
| 319 | LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169); |
| 320 | LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191); |
| 321 | LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10); |
| 322 | LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195); |
| 323 | LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101); |
| 324 | LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103); |
| 325 | LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105); |
| 326 | LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown); |
| 327 | LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext); |
| 328 | LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext); |
| 329 | for (i = 0; i < 4; i++) { |
| 330 | if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i))) |
| 331 | LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1); |
| 332 | } |
| 333 | for (i = 0; i < 9; i++) { |
| 334 | if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i))) |
| 335 | LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1); |
| 336 | } |
| 337 | LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs); |
| 338 | LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs); |
| 339 | LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]); |
| 340 | LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]); |
| 341 | LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]); |
| 342 | LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%d\n", info_ind->remote_ip[0]); |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 343 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 344 | rc = gprs_bssgp_create(info_ind->remote_ip[0], info_ind->remote_port[0], |
| 345 | info_ind->nsei, info_ind->nsvci[0], info_ind->bvci, |
| 346 | info_ind->mcc, info_ind->mnc, info_ind->lac, info_ind->rac, |
| 347 | info_ind->cell_id); |
| 348 | if (rc < 0) { |
| 349 | LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n"); |
| 350 | goto bssgp_failed; |
| 351 | } |
| 352 | |
| 353 | bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1); |
| 354 | bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2); |
| 355 | bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3); |
| 356 | bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4); |
| 357 | if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4) |
| 358 | bts->cs1 = 1; |
| 359 | if (info_ind->t3142) { /* if timer values are set */ |
| 360 | bts->t3142 = info_ind->t3142; |
| 361 | bts->t3169 = info_ind->t3169; |
| 362 | bts->t3191 = info_ind->t3191; |
| 363 | bts->t3193_msec = info_ind->t3193_10ms * 10; |
| 364 | bts->t3195 = info_ind->t3195; |
| 365 | bts->n3101 = info_ind->n3101; |
| 366 | bts->n3103 = info_ind->n3103; |
| 367 | bts->n3105 = info_ind->n3105; |
| 368 | } |
Andreas Eversberg | 8b761a3 | 2012-07-20 21:50:31 +0200 | [diff] [blame] | 369 | if (!bts->force_cs) { |
| 370 | if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4) |
| 371 | bts->initial_cs = 1; |
| 372 | else |
| 373 | bts->initial_cs = info_ind->initial_cs; |
| 374 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 375 | |
| 376 | for (trx = 0; trx < 8; trx++) { |
| 377 | bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; |
| 378 | for (ts = 0; ts < 8; ts++) { |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 379 | pdch = &bts->trx[trx].pdch[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 380 | if ((info_ind->trx[trx].pdch_mask & (1 << ts))) { |
| 381 | /* FIXME: activate dynamically at RLCMAC */ |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 382 | if (!pdch->enable) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 383 | pcu_tx_act_req(trx, ts, 1); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 384 | INIT_LLIST_HEAD(&pdch->paging_list); |
| 385 | pdch->enable = 1; |
| 386 | } |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 387 | pdch->tsc = info_ind->trx[trx].tsc[ts]; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 388 | LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n", |
| 389 | trx, ts); |
| 390 | } else { |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 391 | if (pdch->enable) { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 392 | pcu_tx_act_req(trx, ts, 0); |
Andreas Eversberg | 3b7461c | 2012-07-20 11:19:59 +0200 | [diff] [blame] | 393 | pdch->enable = 0; |
| 394 | flush_pdch(pdch); |
| 395 | } |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 396 | } |
| 397 | } |
| 398 | } |
| 399 | |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 400 | return rc; |
| 401 | } |
| 402 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 403 | static int pcu_rx_time_ind(struct gsm_pcu_if_time_ind *time_ind) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 404 | { |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 405 | struct gprs_rlcmac_tbf *tbf; |
| 406 | uint32_t elapsed; |
| 407 | uint8_t fn13 = time_ind->fn % 13; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 408 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 409 | /* omit frame numbers not starting at a MAC block */ |
| 410 | if (fn13 != 0 && fn13 != 4 && fn13 != 8) |
| 411 | return 0; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 412 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 413 | LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n", |
| 414 | time_ind->fn % 52); |
| 415 | |
| 416 | set_current_fn(time_ind->fn); |
| 417 | |
| 418 | /* check for poll timeout */ |
Andreas Eversberg | b0c7ea7 | 2012-07-13 14:46:03 +0200 | [diff] [blame] | 419 | llist_for_each_entry(tbf, &gprs_rlcmac_ul_tbfs, list) { |
| 420 | if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED) { |
| 421 | elapsed = (frame_number - tbf->poll_fn) % 2715648; |
| 422 | if (elapsed >= 20 && elapsed < 200) |
| 423 | gprs_rlcmac_poll_timeout(tbf); |
| 424 | } |
| 425 | } |
| 426 | llist_for_each_entry(tbf, &gprs_rlcmac_dl_tbfs, list) { |
| 427 | if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED) { |
| 428 | elapsed = (frame_number - tbf->poll_fn) % 2715648; |
| 429 | if (elapsed >= 20 && elapsed < 200) |
| 430 | gprs_rlcmac_poll_timeout(tbf); |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 431 | } |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | return 0; |
| 435 | } |
| 436 | |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 437 | static int pcu_rx_pag_req(struct gsm_pcu_if_pag_req *pag_req) |
| 438 | { |
| 439 | LOGP(DL1IF, LOGL_DEBUG, "Paging request received: chan_needed=%d " |
| 440 | "length=%d\n", pag_req->chan_needed, pag_req->identity_lv[0]); |
| 441 | |
| 442 | return gprs_rlcmac_add_paging(pag_req->chan_needed, |
| 443 | pag_req->identity_lv); |
| 444 | } |
| 445 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 446 | int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim) |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 447 | { |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 448 | int rc = 0; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 449 | |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 450 | switch (msg_type) { |
| 451 | case PCU_IF_MSG_DATA_IND: |
| 452 | rc = pcu_rx_data_ind(&pcu_prim->u.data_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 453 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 454 | case PCU_IF_MSG_RTS_REQ: |
| 455 | rc = pcu_rx_rts_req(&pcu_prim->u.rts_req); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 456 | break; |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 457 | case PCU_IF_MSG_RACH_IND: |
| 458 | rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind); |
| 459 | break; |
| 460 | case PCU_IF_MSG_INFO_IND: |
| 461 | rc = pcu_rx_info_ind(&pcu_prim->u.info_ind); |
| 462 | break; |
| 463 | case PCU_IF_MSG_TIME_IND: |
| 464 | rc = pcu_rx_time_ind(&pcu_prim->u.time_ind); |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 465 | break; |
Andreas Eversberg | 2b91464 | 2012-07-19 13:06:26 +0200 | [diff] [blame] | 466 | case PCU_IF_MSG_PAG_REQ: |
| 467 | rc = pcu_rx_pag_req(&pcu_prim->u.pag_req); |
| 468 | break; |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 469 | default: |
Ivan Kluchnikov | ef7f28c | 2012-07-12 14:49:15 +0400 | [diff] [blame] | 470 | LOGP(DL1IF, LOGL_ERROR, "Received unknwon PCU msg type %d\n", |
| 471 | msg_type); |
| 472 | rc = -EINVAL; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 473 | } |
| 474 | |
Ivan Kluchnikov | 8ee6051 | 2012-03-05 19:24:57 +0400 | [diff] [blame] | 475 | return rc; |
Andreas Eversberg | 0aed654 | 2012-06-23 10:33:16 +0200 | [diff] [blame] | 476 | } |