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#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <osmocom/core/linuxlist.h>
struct l1gprs_state;
struct msgb;
struct l1gprs_tbf_pending_req {
/*! Item in l1gprs_state->tbf_list_pending */
struct llist_head list;
/*! Uplink or Downlink */
bool uplink;
/*! TBF reference number (not index) */
uint8_t tbf_ref;
/*! PDCH timeslots used by this TBF */
uint8_t slotmask;
/*! (Downlink only) DL TFI (Temporary Flow Indentity): 0..31 */
uint8_t dl_tfi;
/*! TBF starting time (absolute TDMA Fn) */
uint32_t start_fn;
};
struct l1gprs_tbf {
/*! Item in l1gprs_state->tbf_list */
struct llist_head list;
/*! Uplink or Downlink */
bool uplink;
/*! TBF reference number (not index) */
uint8_t tbf_ref;
/*! PDCH timeslots used by this TBF */
uint8_t slotmask;
/*! (Downlink only) DL TFI (Temporary Flow Indentity): 0..31 */
uint8_t dl_tfi;
};
struct l1gprs_pdch {
/*! Timeslot number */
uint8_t tn;
/*! Backpointer to l1gprs_state we belong to */
struct l1gprs_state *gprs;
/*! UL TBF count */
uint8_t ul_tbf_count;
/*! DL TBF count */
uint8_t dl_tbf_count;
/*! DL TFI mask */
uint32_t dl_tfi_mask;
/*! Pending UL TBF count */
uint8_t pending_ul_tbf_count;
/*! Pending DL TBF count */
uint8_t pending_dl_tbf_count;
};
static inline size_t l1gprs_pdch_use_count(const struct l1gprs_pdch *pdch)
{
return pdch->ul_tbf_count + pdch->dl_tbf_count +
pdch->pending_ul_tbf_count + pdch->pending_dl_tbf_count;
}
typedef void (*l1gprs_pdch_changed_t)(struct l1gprs_pdch *pdch, bool active);
struct l1gprs_state {
/*! PDCH state for each timeslot */
struct l1gprs_pdch pdch[8];
/*! Uplink and Downlink TBFs (active), struct l1gprs_pending_tbf */
struct llist_head tbf_list;
/*! Uplink and Downlink TBFs (pending), struct l1gprs_tbf_pending_req */
struct llist_head tbf_list_pending;
/*! Logging context (used as prefix for messages) */
char *log_prefix;
/*! Some private data for API user */
void *priv;
/*! Callback triggered to signal lower layers when a PDCH TS has to be activated/deactivated */
l1gprs_pdch_changed_t pdch_changed_cb;
};
void l1gprs_logging_init(int logc);
struct l1gprs_state *l1gprs_state_alloc(void *ctx, const char *log_prefix, void *priv);
void l1gprs_state_free(struct l1gprs_state *gprs);
void l1gprs_state_set_pdch_changed_cb(struct l1gprs_state *gprs, l1gprs_pdch_changed_t pdch_changed_cb);
int l1gprs_handle_ul_tbf_cfg_req(struct l1gprs_state *gprs, const struct msgb *msg);
int l1gprs_handle_dl_tbf_cfg_req(struct l1gprs_state *gprs, const struct msgb *msg);
struct l1gprs_prim_block_hdr {
uint32_t fn;
uint8_t tn;
};
struct l1gprs_prim_ul_block_req {
struct l1gprs_prim_block_hdr hdr;
size_t data_len;
const uint8_t *data;
};
struct l1gprs_prim_dl_block_ind {
struct l1gprs_prim_block_hdr hdr;
struct {
uint16_t ber10k;
int16_t ci_cb;
uint8_t rx_lev;
} meas;
size_t data_len;
const uint8_t *data;
};
int l1gprs_handle_ul_block_req(struct l1gprs_state *gprs,
struct l1gprs_prim_ul_block_req *req,
const struct msgb *msg);
struct msgb *l1gprs_handle_ul_block_cnf(struct l1gprs_state *gprs,
uint32_t fn, uint8_t tn,
const uint8_t *data,
size_t data_len);
struct msgb *l1gprs_handle_dl_block_ind(struct l1gprs_state *gprs,
const struct l1gprs_prim_dl_block_ind *ind, uint8_t *usf);
struct msgb *l1gprs_handle_rts_ind(struct l1gprs_state *gprs, uint32_t fn, uint8_t tn, uint8_t usf);
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