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/* Downlink TBF, 3GPP TS 44.060 */
#pragma once
#include <inttypes.h>
#include <osmocom/core/msgb.h>
#include <osmocom/gprs/rlcmac/tbf.h>
#include <osmocom/gprs/rlcmac/tbf_dl_fsm.h>
#include <osmocom/gprs/rlcmac/coding_scheme.h>
#include <osmocom/gprs/rlcmac/sched.h>
#include <osmocom/gprs/rlcmac/rlcmac_private.h>
#include <osmocom/gprs/rlcmac/rlc.h>
struct gprs_rlcmac_rlc_window;
struct gprs_rlcmac_rlc_ul_window;
struct gprs_rlcmac_dl_tbf {
struct gprs_rlcmac_tbf tbf;
struct gprs_rlcmac_tbf_dl_fsm_ctx state_fsm;
/* Current TS/TFI/USF allocated by the PCU: */
struct gprs_rlcmac_dl_tbf_allocation cur_alloc;
/* Currently LLC frame being filled from RLC blocks */
struct msgb *llc_rx_msg;
/* Holds state of all generated in-transit RLC blocks */
struct gprs_rlcmac_rlc_block_store *blkst;
/* Downlink RLC Window, holds ACK state */
union { /* easy access to parent and child */
struct gprs_rlcmac_rlc_window *w;
struct gprs_rlcmac_rlc_dl_window *dlw;
};
struct osmo_timer_list t3190;
struct osmo_timer_list t3192;
};
struct gprs_rlcmac_dl_tbf *gprs_rlcmac_dl_tbf_alloc(struct gprs_rlcmac_entity *gre);
void gprs_rlcmac_dl_tbf_free(struct gprs_rlcmac_dl_tbf *dl_tbf);
void gprs_rlcmac_dl_tbf_t3190_start(struct gprs_rlcmac_dl_tbf *dl_tbf);
int gprs_rlcmac_dl_tbf_configure_l1ctl(struct gprs_rlcmac_dl_tbf *dl_tbf);
struct msgb *gprs_rlcmac_dl_tbf_create_pkt_dl_ack_nack(struct gprs_rlcmac_dl_tbf *dl_tbf, uint8_t tn);
int gprs_rlcmac_dl_tbf_rcv_data_block(struct gprs_rlcmac_dl_tbf *dl_tbf,
const struct gprs_rlcmac_rlc_data_info *rlc,
uint8_t *data, uint32_t fn, uint8_t ts_nr);
static inline struct gprs_rlcmac_tbf *dl_tbf_as_tbf(struct gprs_rlcmac_dl_tbf *dl_tbf)
{
return &dl_tbf->tbf;
}
static inline const struct gprs_rlcmac_tbf *dl_tbf_as_tbf_const(const struct gprs_rlcmac_dl_tbf *dl_tbf)
{
return &dl_tbf->tbf;
}
static inline struct gprs_rlcmac_dl_tbf *tbf_as_dl_tbf(struct gprs_rlcmac_tbf *tbf)
{
OSMO_ASSERT(tbf->direction == GPRS_RLCMAC_TBF_DIR_DL);
return (struct gprs_rlcmac_dl_tbf *)tbf;
}
static inline const struct gprs_rlcmac_dl_tbf *tbf_as_dl_tbf_const(struct gprs_rlcmac_tbf *tbf)
{
OSMO_ASSERT(tbf->direction == GPRS_RLCMAC_TBF_DIR_DL);
return (const struct gprs_rlcmac_dl_tbf *)tbf;
}
#define LOGPTBFDL(dl_tbf, lvl, fmt, args...) \
LOGP(g_rlcmac_log_cat[OSMO_GPRS_RLCMAC_LOGC_TBFDL], lvl, "TBF(DL:NR-%" PRIu8 ":TLLI-%08x) " fmt, \
(dl_tbf)->tbf.nr, (dl_tbf)->tbf.gre->tlli, \
## args)
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