/* * OsmocomBB <-> SDR connection bridge * TDMA scheduler: logical channels, RX / TX handlers * * (C) 2013 by Andreas Eversberg * (C) 2015 by Alexander Chemeris * (C) 2015 by Harald Welte * * All Rights Reserved * * 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 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 . * */ #include #include #include /* Forward declaration of handlers */ int rx_data_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, const sbit_t *bits, const struct trx_meas_set *meas); int tx_data_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, struct sched_burst_req *br); int rx_sch_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, const sbit_t *bits, const struct trx_meas_set *meas); int tx_rach_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, struct sched_burst_req *br); int rx_tchf_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, const sbit_t *bits, const struct trx_meas_set *meas); int tx_tchf_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, struct sched_burst_req *br); int rx_tchh_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, const sbit_t *bits, const struct trx_meas_set *meas); int tx_tchh_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, struct sched_burst_req *br); int rx_pdtch_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, uint32_t fn, uint8_t bid, const sbit_t *bits, const struct trx_meas_set *meas); int tx_pdtch_fn(struct trx_instance *trx, struct trx_ts *ts, struct trx_lchan_state *lchan, struct sched_burst_req *br); const struct trx_lchan_desc trx_lchan_desc[_TRX_CHAN_MAX] = { [TRXC_IDLE] = { .name = "IDLE", .desc = "Idle channel", /* The MS needs to perform neighbour measurements during * IDLE slots, however this is not implemented (yet). */ }, [TRXC_FCCH] = { .name = "FCCH", /* 3GPP TS 05.02, section 3.3.2.1 */ .desc = "Frequency correction channel", /* Handled by transceiver, nothing to do. */ }, [TRXC_SCH] = { .name = "SCH", /* 3GPP TS 05.02, section 3.3.2.2 */ .desc = "Synchronization channel", /* 3GPP TS 05.03, section 4.7. Handled by transceiver, * however we still need to parse BSIC (BCC / NCC). */ .flags = TRX_CH_FLAG_AUTO, .rx_fn = rx_sch_fn, }, [TRXC_BCCH] = { .name = "BCCH", /* 3GPP TS 05.02, section 3.3.2.3 */ .desc = "Broadcast control channel", .gsmtap_chan_type = GSMTAP_CHANNEL_BCCH, .chan_nr = RSL_CHAN_BCCH, /* Rx only, xCCH convolutional coding (3GPP TS 05.03, section 4.4), * regular interleaving (3GPP TS 05.02, clause 7, table 3): * a L2 frame is interleaved over 4 consecutive bursts. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_AUTO, .rx_fn = rx_data_fn, }, [TRXC_RACH] = { .name = "RACH", /* 3GPP TS 05.02, section 3.3.3.1 */ .desc = "Random access channel", .gsmtap_chan_type = GSMTAP_CHANNEL_RACH, .chan_nr = RSL_CHAN_RACH, /* Tx only, RACH convolutional coding (3GPP TS 05.03, section 4.6). */ .flags = TRX_CH_FLAG_AUTO, .tx_fn = tx_rach_fn, }, [TRXC_CCCH] = { .name = "CCCH", /* 3GPP TS 05.02, section 3.3.3.1 */ .desc = "Common control channel", .gsmtap_chan_type = GSMTAP_CHANNEL_CCCH, .chan_nr = RSL_CHAN_PCH_AGCH, /* Rx only, xCCH convolutional coding (3GPP TS 05.03, section 4.4), * regular interleaving (3GPP TS 05.02, clause 7, table 3): * a L2 frame is interleaved over 4 consecutive bursts. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_AUTO, .rx_fn = rx_data_fn, }, [TRXC_TCHF] = { .name = "TCH/F", /* 3GPP TS 05.02, section 3.2 */ .desc = "Full Rate traffic channel", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_F, .chan_nr = RSL_CHAN_Bm_ACCHs, .link_id = TRX_CH_LID_DEDIC, /* Rx and Tx, multiple convolutional coding types (3GPP TS 05.03, * chapter 3), block diagonal interleaving (3GPP TS 05.02, clause 7): * * - a traffic frame is interleaved over 8 consecutive bursts * using the even numbered bits of the first 4 bursts * and odd numbered bits of the last 4 bursts; * - a FACCH/F frame 'steals' (replaces) one traffic frame, * interleaving is done in the same way. * * The MS shall continuously transmit bursts, even if there is nothing * to send, unless DTX (Discontinuous Transmission) is used. */ .burst_buf_size = 8 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_tchf_fn, .tx_fn = tx_tchf_fn, }, [TRXC_TCHH_0] = { .name = "TCH/H(0)", /* 3GPP TS 05.02, section 3.2 */ .desc = "Half Rate traffic channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_H, .chan_nr = RSL_CHAN_Lm_ACCHs + (0 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 0, /* Rx and Tx, multiple convolutional coding types (3GPP TS 05.03, * chapter 3), block diagonal interleaving (3GPP TS 05.02, clause 7): * * - a traffic frame is interleaved over 4 non-consecutive bursts * using the even numbered bits of the first 2 bursts, * and odd numbered bits of the last 2 bursts; * - a FACCH/H frame is interleaved over 6 non-consecutive bursts * using the even numbered bits of the first 2 bursts, * all bits of the middle two 2 bursts, * and odd numbered bits of the last 2 bursts; * - a FACCH/H frame 'steals' (replaces) two traffic frames, * interleaving is done over 4 consecutive bursts, * the same as given for a TCH/FS. * * The MS shall continuously transmit bursts, even if there is nothing * to send, unless DTX (Discontinuous Transmission) is used. */ .burst_buf_size = 6 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_tchh_fn, .tx_fn = tx_tchh_fn, }, [TRXC_TCHH_1] = { .name = "TCH/H(1)", /* 3GPP TS 05.02, section 3.2 */ .desc = "Half Rate traffic channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_H, .chan_nr = RSL_CHAN_Lm_ACCHs + (1 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 1, /* Same as for TRXC_TCHH_0, see above. */ .burst_buf_size = 6 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_tchh_fn, .tx_fn = tx_tchh_fn, }, [TRXC_SDCCH4_0] = { .name = "SDCCH/4(0)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (0 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 0, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH4_1] = { .name = "SDCCH/4(1)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (1 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 1, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH4_2] = { .name = "SDCCH/4(2)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 2)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (2 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 2, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH4_3] = { .name = "SDCCH/4(3)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 3)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (3 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 3, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_0] = { .name = "SDCCH/8(0)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (0 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 0, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_1] = { .name = "SDCCH/8(1)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (1 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 1, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_2] = { .name = "SDCCH/8(2)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 2)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (2 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 2, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_3] = { .name = "SDCCH/8(3)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 3)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (3 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 3, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_4] = { .name = "SDCCH/8(4)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 4)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (4 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 4, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_5] = { .name = "SDCCH/8(5)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 5)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (5 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 5, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_6] = { .name = "SDCCH/8(6)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 6)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (6 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 6, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SDCCH8_7] = { .name = "SDCCH/8(7)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Stand-alone dedicated control channel (sub-channel 7)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (7 << 3), .link_id = TRX_CH_LID_DEDIC, .ss_nr = 7, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCHTF] = { .name = "SACCH/TF", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow TCH/F associated control channel", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_F | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_Bm_ACCHs, .link_id = TRX_CH_LID_SACCH, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCHTH_0] = { .name = "SACCH/TH(0)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow TCH/H associated control channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_H | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_Lm_ACCHs + (0 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 0, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCHTH_1] = { .name = "SACCH/TH(1)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow TCH/H associated control channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_TCH_H | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_Lm_ACCHs + (1 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 1, /* Same as for TRXC_BCCH (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH4_0] = { .name = "SACCH/4(0)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/4 associated control channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (0 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 0, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH4_1] = { .name = "SACCH/4(1)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/4 associated control channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (1 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 1, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH4_2] = { .name = "SACCH/4(2)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/4 associated control channel (sub-channel 2)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (2 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 2, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH4_3] = { .name = "SACCH/4(3)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/4 associated control channel (sub-channel 3)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH4 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH4_ACCH + (3 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 3, /* Same as for TRXC_BCCH and TRXC_SDCCH4_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_0] = { .name = "SACCH/8(0)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 0)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (0 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 0, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_1] = { .name = "SACCH/8(1)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 1)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (1 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 1, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_2] = { .name = "SACCH/8(2)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 2)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (2 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 2, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_3] = { .name = "SACCH/8(3)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 3)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (3 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 3, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_4] = { .name = "SACCH/8(4)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 4)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (4 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 4, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_5] = { .name = "SACCH/8(5)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 5)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (5 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 5, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_6] = { .name = "SACCH/8(6)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 6)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (6 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 6, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_SACCH8_7] = { .name = "SACCH/8(7)", /* 3GPP TS 05.02, section 3.3.4.1 */ .desc = "Slow SDCCH/8 associated control channel (sub-channel 7)", .gsmtap_chan_type = GSMTAP_CHANNEL_SDCCH8 | GSMTAP_CHANNEL_ACCH, .chan_nr = RSL_CHAN_SDCCH8_ACCH + (7 << 3), .link_id = TRX_CH_LID_SACCH, .ss_nr = 7, /* Same as for TRXC_BCCH and TRXC_SDCCH8_* (xCCH), see above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_CBTX, .rx_fn = rx_data_fn, .tx_fn = tx_data_fn, }, [TRXC_PDTCH] = { .name = "PDTCH", /* 3GPP TS 05.02, sections 3.2.4, 3.3.2.4 */ .desc = "Packet data traffic & control channel", .gsmtap_chan_type = GSMTAP_CHANNEL_PDTCH, .chan_nr = RSL_CHAN_OSMO_PDCH, /* Rx and Tx, multiple coding schemes: CS-1..4 and MCS-1..9 (3GPP TS * 05.03, chapter 5), regular interleaving as specified for xCCH. * NOTE: the burst buffer is three times bigger because the * payload of EDGE bursts is three times longer. */ .burst_buf_size = 3 * 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_PDCH, .rx_fn = rx_pdtch_fn, .tx_fn = tx_pdtch_fn, }, [TRXC_PTCCH] = { .name = "PTCCH", /* 3GPP TS 05.02, section 3.3.4.2 */ .desc = "Packet Timing advance control channel", .gsmtap_chan_type = GSMTAP_CHANNEL_PTCCH, .chan_nr = RSL_CHAN_OSMO_PDCH, .link_id = TRX_CH_LID_PTCCH, /* On the Uplink, mobile stations transmit random Access Bursts * to allow estimation of the timing advance for one MS in packet * transfer mode. On Downlink, the network sends timing advance * updates for several mobile stations. The coding scheme used * for PTCCH/D messages is the same as for PDTCH CS-1. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_PDCH, .rx_fn = rx_pdtch_fn, .tx_fn = tx_rach_fn, }, [TRXC_SDCCH4_CBCH] = { .name = "SDCCH/4(CBCH)", /* 3GPP TS 05.02, section 3.3.5 */ .desc = "Cell Broadcast channel on SDCCH/4", .gsmtap_chan_type = GSMTAP_CHANNEL_CBCH51, .chan_nr = RSL_CHAN_OSMO_CBCH4, .ss_nr = 2, /* Same as for TRXC_BCCH (xCCH), but Rx only. See above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .flags = TRX_CH_FLAG_AUTO, .rx_fn = rx_data_fn, }, [TRXC_SDCCH8_CBCH] = { .name = "SDCCH/8(CBCH)", /* 3GPP TS 05.02, section 3.3.5 */ .desc = "Cell Broadcast channel on SDCCH/8", .gsmtap_chan_type = GSMTAP_CHANNEL_CBCH52, .chan_nr = RSL_CHAN_OSMO_CBCH8, .ss_nr = 2, /* Same as for TRXC_BCCH (xCCH), but Rx only. See above. */ .burst_buf_size = 4 * GSM_BURST_PL_LEN, .rx_fn = rx_data_fn, }, };