1 /* 2 * Copyright (c) 2021 Demant 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #define IS_PERIPHERAL(cig) \ 8 (IS_ENABLED(CONFIG_BT_CTLR_PERIPHERAL_ISO) && \ 9 (cig->lll.role == BT_HCI_ROLE_PERIPHERAL)) 10 11 #define IS_CENTRAL(cig) \ 12 (IS_ENABLED(CONFIG_BT_CTLR_CENTRAL_ISO) && \ 13 (cig->lll.role == BT_HCI_ROLE_CENTRAL)) 14 15 /* BT Core 5.4, Vol 6, Part B, section 2.4.2.29 */ 16 #define CIS_MIN_OFFSET_MIN 500U 17 18 /* Helper functions to initialize and reset ull_conn_iso module */ 19 int ull_conn_iso_init(void); 20 int ull_conn_iso_reset(void); 21 22 struct ll_conn_iso_group *ll_conn_iso_group_acquire(void); 23 void ll_conn_iso_group_release(struct ll_conn_iso_group *cig); 24 uint16_t ll_conn_iso_group_handle_get(struct ll_conn_iso_group *cig); 25 struct ll_conn_iso_group *ll_conn_iso_group_get(uint16_t handle); 26 struct ll_conn_iso_group *ll_conn_iso_group_get_by_id(uint8_t id); 27 28 struct ll_conn_iso_stream *ll_conn_iso_stream_acquire(void); 29 void ll_conn_iso_stream_release(struct ll_conn_iso_stream *cis); 30 uint16_t ll_conn_iso_stream_handle_get(struct ll_conn_iso_stream *cis); 31 struct ll_conn_iso_stream *ll_conn_iso_stream_get(uint16_t handle); 32 struct ll_conn_iso_stream *ll_iso_stream_connected_get(uint16_t handle); 33 struct ll_conn_iso_stream *ll_conn_iso_stream_get_by_acl(struct ll_conn *conn, 34 uint16_t *cis_iter); 35 struct ll_conn_iso_stream *ll_conn_iso_stream_get_by_group(struct ll_conn_iso_group *cig, 36 uint16_t *handle_iter); 37 struct ll_conn_iso_stream *ll_conn_iso_stream_get_by_id(uint8_t cis_id); 38 39 void ull_conn_iso_start(struct ll_conn *acl, uint16_t cis_handle, 40 uint32_t ticks_at_expire, uint32_t remainder, 41 uint16_t instant_latency); 42 void ull_conn_iso_done(struct node_rx_event_done *done); 43 void ull_conn_iso_cis_stop(struct ll_conn_iso_stream *cis, 44 ll_iso_stream_released_cb_t cis_released_cb, 45 uint8_t reason); 46 47 void ull_conn_iso_resume_ticker_start(struct lll_event *resume_event, 48 uint16_t cis_handle, 49 uint32_t ticks_anchor, 50 uint32_t resume_timeout); 51 void ull_conn_iso_transmit_test_cig_interval(uint16_t handle, 52 uint32_t ticks_at_expire); 53 54 void ull_conn_iso_ticker_cb(uint32_t ticks_at_expire, uint32_t ticks_drift, 55 uint32_t remainder, uint16_t lazy, uint8_t force, 56 void *param); 57
