diff options
Diffstat (limited to 'src/pdch_ul_controller.h')
| -rw-r--r-- | src/pdch_ul_controller.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/pdch_ul_controller.h b/src/pdch_ul_controller.h new file mode 100644 index 00000000..e86dbf52 --- /dev/null +++ b/src/pdch_ul_controller.h @@ -0,0 +1,79 @@ +/* pdch_ul_controller.h + * + * Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> + * Author: Pau Espin Pedrol <pespin@sysmocom.de> + * + * 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. + */ +#pragma once + +#include <stdint.h> +#include <stdbool.h> + +#include <osmocom/core/linuxrbtree.h> +#include <osmocom/core/utils.h> + +struct gprs_rlcmac_pdch; +struct gprs_rlcmac_tbf; +struct gprs_rlcmac_ul_tbf; +struct gprs_rlcmac_sba; + +struct pdch_ulc { + struct gprs_rlcmac_pdch *pdch; /* back pointer */ + uint32_t last_fn; /* last FN rx from TDMA clock */ + struct rb_root tree_root; + void *pool_ctx; /* talloc pool of struct pdch_ulc_node */ +}; + +enum PdchUlcNode { + PDCH_ULC_NODE_TBF_USF, + PDCH_ULC_NODE_TBF_POLL, + PDCH_ULC_NODE_SBA, +}; +extern const struct value_string pdch_ul_node_names[]; + +struct pdch_ulc_node { + struct rb_node node; /*! entry in pdch_ulc->tree_root */ + uint32_t fn; + enum PdchUlcNode type; + union { + struct { + struct gprs_rlcmac_ul_tbf *ul_tbf; + } tbf_usf; + struct { + struct gprs_rlcmac_tbf *poll_tbf; + } tbf_poll; + struct { + struct gprs_rlcmac_sba *sba; + } sba; + }; +}; + + +struct pdch_ulc *pdch_ulc_alloc(struct gprs_rlcmac_pdch *pdch, void *ctx); + +int pdch_ulc_reserve_tbf_usf(struct pdch_ulc *ulc, uint32_t fn, struct gprs_rlcmac_ul_tbf *ul_tbf); +int pdch_ulc_reserve_tbf_poll(struct pdch_ulc *ulc, uint32_t fn, struct gprs_rlcmac_tbf *tbf); +int pdch_ulc_reserve_sba(struct pdch_ulc *ulc, struct gprs_rlcmac_sba *sba); + +bool pdch_ulc_fn_is_free(struct pdch_ulc *ulc, uint32_t fn); + +struct pdch_ulc_node *pdch_ulc_get_node(struct pdch_ulc *ulc, uint32_t fn); +struct pdch_ulc_node *pdch_ulc_pop_node(struct pdch_ulc *ulc, uint32_t fn); +struct gprs_rlcmac_sba *pdch_ulc_get_sba(struct pdch_ulc *ulc, uint32_t fn); + +int pdch_ulc_release_fn(struct pdch_ulc *ulc, uint32_t fn); + +void pdch_ulc_expire_fn(struct pdch_ulc *ulc, uint32_t fn); |