Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 1 | /* tbf_ul_ack_fsm.h |
| 2 | * |
| 3 | * Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * Author: Pau Espin Pedrol <pespin@sysmocom.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version 2 |
| 9 | * of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 15 | */ |
| 16 | #pragma once |
| 17 | |
| 18 | #include <osmocom/core/fsm.h> |
| 19 | #include <osmocom/core/tdef.h> |
| 20 | |
| 21 | #include <gprs_pcu.h> |
| 22 | |
| 23 | struct gprs_rlcmac_tbf; |
| 24 | struct gprs_rlcmac_ul_tbf; |
Pau Espin Pedrol | 106f2a0 | 2022-12-12 17:29:10 +0100 | [diff] [blame] | 25 | struct gprs_rlcmac_pdch; |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 26 | |
| 27 | enum tbf_ul_ack_fsm_event { |
| 28 | TBF_UL_ACK_EV_SCHED_ACK, /* Tx UL ACK/NACK is pending */ |
| 29 | TBF_UL_ACK_EV_CREATE_RLCMAC_MSG, /* Scheduler wants to gen+Tx the Ass (rej): data=tbf_ul_ack_ev_create_rlcmac_msg_ctx */ |
| 30 | TBF_UL_ACK_EV_RX_CTRL_ACK, /* Received CTRL ACK answering poll set on UL ACK/NACK */ |
| 31 | TBF_UL_ACK_EV_POLL_TIMEOUT, /* Pdch Ul Controller signals timeout for poll set on UL ACK/NACK */ |
| 32 | }; |
| 33 | |
| 34 | enum tbf_ul_ack_fsm_states { |
| 35 | TBF_UL_ACK_ST_NONE = 0, |
| 36 | TBF_UL_ACK_ST_SCHED_UL_ACK, /* send UL ACK/NACK on next RTS */ |
| 37 | TBF_UL_ACK_ST_WAIT_ACK, /* wait for PACKET CONTROL ACK */ |
| 38 | }; |
| 39 | |
| 40 | struct tbf_ul_ack_fsm_ctx { |
| 41 | struct osmo_fsm_inst *fi; |
| 42 | struct gprs_rlcmac_ul_tbf *tbf; /* back pointer */ |
| 43 | }; |
| 44 | |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 45 | extern struct osmo_fsm tbf_ul_ack_fsm; |
| 46 | |
| 47 | |
| 48 | /* passed as data in TBF_UL_ACK_EV_CREATE_RLCMAC_MSG */ |
| 49 | struct tbf_ul_ack_ev_create_rlcmac_msg_ctx { |
Pau Espin Pedrol | 5ba3ef9 | 2022-12-12 18:02:25 +0100 | [diff] [blame] | 50 | const struct gprs_rlcmac_pdch *pdch; /* TS where the created DL ctrl block is to be sent */ |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 51 | uint32_t fn; /* FN where the created DL ctrl block is to be sent */ |
Pau Espin Pedrol | ea8dbdd | 2021-07-29 18:39:16 +0200 | [diff] [blame] | 52 | struct msgb *msg; /* to be filled by FSM during event processing */ |
| 53 | }; |
| 54 | |
| 55 | |
Pau Espin Pedrol | 5ba3ef9 | 2022-12-12 18:02:25 +0100 | [diff] [blame] | 56 | struct msgb *tbf_ul_ack_create_rlcmac_msg(const struct gprs_rlcmac_ul_tbf *ul_tbf, |
| 57 | const struct gprs_rlcmac_pdch *pdch, |
| 58 | uint32_t fn); |
Pau Espin Pedrol | 106f2a0 | 2022-12-12 17:29:10 +0100 | [diff] [blame] | 59 | bool tbf_ul_ack_rts(const struct gprs_rlcmac_ul_tbf *ul_tbf, const struct gprs_rlcmac_pdch *pdch); |
Pau Espin Pedrol | bf2842e | 2022-10-26 20:14:58 +0200 | [diff] [blame] | 60 | bool tbf_ul_ack_waiting_cnf_final_ack(const struct gprs_rlcmac_ul_tbf *ul_tbf); |
| 61 | bool tbf_ul_ack_exp_ctrl_ack(const struct gprs_rlcmac_ul_tbf *ul_tbf, uint32_t fn, uint8_t ts); |