Pau Espin Pedrol | dc2aaac | 2021-05-14 12:50:46 +0200 | [diff] [blame^] | 1 | /* tbf_fsm.c |
| 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. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | */ |
| 20 | |
| 21 | #include <unistd.h> |
| 22 | |
| 23 | #include <talloc.h> |
| 24 | |
| 25 | #include <tbf_fsm.h> |
| 26 | #include <gprs_rlcmac.h> |
| 27 | #include <gprs_debug.h> |
| 28 | #include <gprs_ms.h> |
| 29 | #include <encoding.h> |
| 30 | #include <bts.h> |
| 31 | |
| 32 | #define X(s) (1 << (s)) |
| 33 | |
| 34 | const struct osmo_tdef_state_timeout tbf_fsm_timeouts[32] = { |
| 35 | [TBF_ST_NULL] = {}, |
| 36 | [TBF_ST_ASSIGN] = { }, |
| 37 | [TBF_ST_FLOW] = { }, |
| 38 | [TBF_ST_FINISHED] = {}, |
| 39 | [TBF_ST_WAIT_RELEASE] = {}, |
| 40 | [TBF_ST_RELEASING] = {}, |
| 41 | }; |
| 42 | |
| 43 | const struct value_string tbf_fsm_event_names[] = { |
| 44 | { TBF_EV_FOOBAR, "FOOBAR" }, |
| 45 | { 0, NULL } |
| 46 | }; |
| 47 | |
| 48 | static void tbf_fsm_cleanup(struct osmo_fsm_inst *fi, enum osmo_fsm_term_cause cause) |
| 49 | { |
| 50 | /* TODO: needed ? |
| 51 | * struct tbf_fsm_ctx *ctx = (struct tbf_fsm_ctx *)fi->priv; |
| 52 | */ |
| 53 | } |
| 54 | |
| 55 | static int tbf_fsm_timer_cb(struct osmo_fsm_inst *fi) |
| 56 | { |
| 57 | switch (fi->T) { |
| 58 | default: |
| 59 | break; |
| 60 | } |
| 61 | return 0; |
| 62 | } |
| 63 | |
| 64 | static struct osmo_fsm_state tbf_fsm_states[] = { |
| 65 | [TBF_ST_NULL] = { |
| 66 | .in_event_mask = |
| 67 | 0, |
| 68 | .out_state_mask = |
| 69 | X(TBF_ST_ASSIGN) | |
| 70 | X(TBF_ST_FLOW) | |
| 71 | X(TBF_ST_RELEASING), |
| 72 | .name = "NULL", |
| 73 | //.action = st_null, |
| 74 | }, |
| 75 | [TBF_ST_ASSIGN] = { |
| 76 | .in_event_mask = |
| 77 | 0, |
| 78 | .out_state_mask = |
| 79 | X(TBF_ST_FLOW) | |
| 80 | X(TBF_ST_FINISHED) | |
| 81 | X(TBF_ST_RELEASING), |
| 82 | .name = "ASSIGN", |
| 83 | //.onenter = st_assign_on_enter, |
| 84 | //.action = st_assign, |
| 85 | }, |
| 86 | [TBF_ST_FLOW] = { |
| 87 | .in_event_mask = |
| 88 | 0, |
| 89 | .out_state_mask = |
| 90 | X(TBF_ST_FINISHED) | |
| 91 | X(TBF_ST_WAIT_RELEASE) | |
| 92 | X(TBF_ST_RELEASING), |
| 93 | .name = "FLOW", |
| 94 | //.onenter = st_flow_on_enter, |
| 95 | //.action = st_flow, |
| 96 | }, |
| 97 | [TBF_ST_FINISHED] = { |
| 98 | .in_event_mask = |
| 99 | 0, |
| 100 | .out_state_mask = |
| 101 | X(TBF_ST_WAIT_RELEASE), |
| 102 | .name = "FINISHED", |
| 103 | //.onenter = st_finished_on_enter, |
| 104 | //.action = st_finished, |
| 105 | }, |
| 106 | [TBF_ST_WAIT_RELEASE] = { |
| 107 | .in_event_mask = |
| 108 | 0, |
| 109 | .out_state_mask = |
| 110 | X(TBF_ST_RELEASING), |
| 111 | .name = "WAIT_RELEASE", |
| 112 | //.action = st_wait_release, |
| 113 | }, |
| 114 | [TBF_ST_RELEASING] = { |
| 115 | .in_event_mask = |
| 116 | 0, |
| 117 | .out_state_mask = |
| 118 | 0, |
| 119 | .name = "RELEASING", |
| 120 | //.action = st_releasing, |
| 121 | }, |
| 122 | }; |
| 123 | |
| 124 | struct osmo_fsm tbf_fsm = { |
| 125 | .name = "TBF", |
| 126 | .states = tbf_fsm_states, |
| 127 | .num_states = ARRAY_SIZE(tbf_fsm_states), |
| 128 | .timer_cb = tbf_fsm_timer_cb, |
| 129 | .cleanup = tbf_fsm_cleanup, |
| 130 | .log_subsys = DTBF, |
| 131 | .event_names = tbf_fsm_event_names, |
| 132 | }; |
| 133 | |
| 134 | static __attribute__((constructor)) void tbf_fsm_init(void) |
| 135 | { |
| 136 | OSMO_ASSERT(osmo_fsm_register(&tbf_fsm) == 0); |
| 137 | } |