1 /* 2 * Copyright (c) 2021 Demant 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 struct ll_conn; 8 9 typedef void (*ll_iso_stream_released_cb_t)(struct ll_conn *conn); 10 11 #define CIG_STATE_NO_CIG 0 12 #define CIG_STATE_CONFIGURABLE 1 /* Central only */ 13 #define CIG_STATE_INITIATING 2 /* Central only */ 14 #define CIG_STATE_ACTIVE 3 15 #define CIG_STATE_INACTIVE 4 16 17 struct ll_conn_iso_stream { 18 struct ll_iso_stream_hdr hdr; 19 struct lll_conn_iso_stream lll; 20 21 struct ll_conn_iso_group *group; 22 23 uint16_t c_max_sdu:12; /* Maximum SDU size C_To_P */ 24 uint16_t p_max_sdu:12; /* Maximum SDU size P_To_C */ 25 uint8_t framed:1; /* 0: unframed, 1: framed */ 26 uint16_t established:1; /* 0 if CIS has not yet been established. 27 * 1 if CIS has been established and host 28 * notified. 29 */ 30 uint16_t trx_performed:1; /* 1 if CIS had a transaction */ 31 uint16_t teardown:1; /* 1 if CIS teardown has been initiated */ 32 33 union { 34 struct { 35 uint8_t c_rtn; 36 uint8_t p_rtn; 37 uint16_t instant; 38 } central; 39 }; 40 41 uint32_t offset; /* Offset of CIS from ACL event in us */ 42 uint32_t sync_delay; 43 44 ll_iso_stream_released_cb_t released_cb; /* CIS release callback */ 45 46 uint16_t event_expire; /* Supervision & Connect Timeout event 47 * counter 48 */ 49 uint8_t terminate_reason; 50 uint8_t cis_id; 51 52 #if defined(CONFIG_BT_CTLR_ISOAL_PSN_IGNORE) 53 uint64_t pkt_seq_num:39; 54 #endif /* CONFIG_BT_CTLR_ISOAL_PSN_IGNORE */ 55 }; 56 57 struct ll_conn_iso_group { 58 struct ull_hdr ull; 59 struct lll_conn_iso_group lll; 60 61 uint32_t c_sdu_interval; 62 uint32_t p_sdu_interval; 63 uint32_t c_latency; /* Transport_Latency_M_To_S = CIG_Sync_Delay + 64 * (FT_M_To_S) × ISO_Interval + 65 * SDU_Interval_M_To_S 66 */ 67 uint32_t p_latency; /* Transport_Latency_S_To_M = CIG_Sync_Delay + 68 * (FT_S_To_M) × ISO_Interval + 69 * SDU_Interval_S_To_M 70 */ 71 uint32_t cig_ref_point; /* CIG reference point timestamp (us) based on 72 * controller's clock. 73 */ 74 uint32_t sync_delay; 75 76 uint16_t iso_interval; 77 uint8_t cig_id; 78 79 uint8_t state:3; /* CIG_STATE_NO_CIG, CIG_STATE_CONFIGURABLE (central only), 80 * CIG_STATE_INITIATING (central only), CIG_STATE_ACTIVE or 81 * CIG_STATE_INACTIVE. 82 */ 83 uint8_t sca_update:4; /* (new SCA)+1 to trigger restart of ticker */ 84 85 union { 86 struct { 87 uint8_t sca; 88 uint8_t packing; 89 uint8_t framing; 90 uint8_t test:1; /* HCI_LE_Set_CIG_Parameters_Test */ 91 } central; 92 }; 93 }; 94 95 struct node_rx_conn_iso_req { 96 uint16_t cis_handle; 97 uint8_t cig_id; 98 uint8_t cis_id; 99 }; 100 101 struct node_rx_conn_iso_estab { 102 uint16_t cis_handle; 103 uint8_t status; 104 }; 105
