libosmo-gprs/include/osmocom/gprs/rlcmac/pdch_ul_controller.h

66 lines
2.6 KiB
C

/* pdch_ul_controller.h
*
* Copyright (C) 2021-2023 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.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <osmocom/core/linuxrbtree.h>
#include <osmocom/core/utils.h>
struct gprs_rlcmac_gre;
struct gprs_rlcmac_tbf;
struct gprs_rlcmac_pdch_ulc {
uint8_t ts_nr;
struct rb_root tree_root;
void *pool_ctx; /* talloc pool of struct pdch_ulc_node */
};
enum gprs_rlcmac_pdch_ulc_poll_reason {
GPRS_RLCMAC_PDCH_ULC_POLL_UL_ASS, /* Tx CTRL ACK for received UL ASS */
GPRS_RLCMAC_PDCH_ULC_POLL_DL_ASS, /* Tx CTRL ACK for received DL ASS */
GPRS_RLCMAC_PDCH_ULC_POLL_UL_ACK, /* Tx CTRL ACK (or PKT RES REQ on final UL ACK/NACK) for received UL ACK/NACK */
GPRS_RLCMAC_PDCH_ULC_POLL_DL_ACK, /* Tx DL ACK/NACK (or others 8.1.2.2) for received data block */
GPRS_RLCMAC_PDCH_ULC_POLL_CELL_CHG_CONTINUE, /* Tx CTRL ACK for received Pkt cell Change Continue */
};
extern const struct value_string gprs_rlcmac_pdch_ulc_poll_reason_names[];
struct gprs_rlcmac_pdch_ulc_node {
struct rb_node node; /*! entry in gprs_rlcmac_pdch_ulc->tree_root */
uint32_t fn;
enum gprs_rlcmac_pdch_ulc_poll_reason reason;
union {
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_entity *gre;
void *data;
};
};
struct gprs_rlcmac_pdch_ulc *gprs_rlcmac_pdch_ulc_alloc(void *ctx, uint8_t ts_nr);
int gprs_rlcmac_pdch_ulc_reserve(struct gprs_rlcmac_pdch_ulc *ulc, uint32_t fn, enum gprs_rlcmac_pdch_ulc_poll_reason reason, void *data);
struct gprs_rlcmac_pdch_ulc_node *gprs_rlcmac_pdch_ulc_get_node(struct gprs_rlcmac_pdch_ulc *ulc, uint32_t fn);
struct gprs_rlcmac_pdch_ulc_node *gprs_rlcmac_pdch_ulc_pop_node(struct gprs_rlcmac_pdch_ulc *ulc, uint32_t fn);
void gprs_rlcmac_pdch_ulc_release_node(struct gprs_rlcmac_pdch_ulc *ulc, struct gprs_rlcmac_pdch_ulc_node *item);
void gprs_rlcmac_pdch_ulc_release_tbf(struct gprs_rlcmac_pdch_ulc *ulc, const struct gprs_rlcmac_tbf *tbf);
int gprs_rlcmac_pdch_ulc_release_fn(struct gprs_rlcmac_pdch_ulc *ulc, uint32_t fn);
void gprs_rlcmac_pdch_ulc_expire_fn(struct gprs_rlcmac_pdch_ulc *ulc, uint32_t fn);