1 /* 2 * Copyright (c) 2020 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #define LL_SYNC_STATE_IDLE 0x00 8 #define LL_SYNC_STATE_ADDR_MATCH 0x01 9 #define LL_SYNC_STATE_CREATED 0x02 10 11 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 12 struct ll_sync_iso_set; 13 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 14 15 struct ll_sync_set { 16 struct ull_hdr ull; 17 struct lll_sync lll; 18 19 uint16_t skip; 20 uint16_t timeout; 21 /* Non-zero when sync is setup. It can be in two sub-stated: 22 * - Waiting for first AUX_SYNC_IND, before sync established was notified to Host. 23 * If sync establishment is in progress node_rx_sync_estab is not NULL. 24 * - sync is already established, node_rx_sync_estab is NULL. 25 */ 26 uint16_t volatile timeout_reload; 27 uint16_t timeout_expire; 28 29 /* Member to store periodic advertising sync prepare. 30 * Also serves as a flag to inform if sync established was 31 * already generated. 32 */ 33 void (*lll_sync_prepare)(void *param); 34 35 #if defined(CONFIG_BT_CTLR_CHECK_SAME_PEER_SYNC) || \ 36 defined(CONFIG_BT_CTLR_SYNC_PERIODIC_ADI_SUPPORT) 37 uint8_t peer_id_addr[BDADDR_SIZE]; 38 uint8_t peer_id_addr_type:1; 39 #endif /* CONFIG_BT_CTLR_CHECK_SAME_PEER_SYNC || 40 * CONFIG_BT_CTLR_SYNC_PERIODIC_ADI_SUPPORT 41 */ 42 43 uint8_t rx_enable:1; 44 45 #if defined(CONFIG_BT_CTLR_SYNC_PERIODIC_ADI_SUPPORT) 46 uint8_t nodups:1; 47 #endif 48 49 #if defined(CONFIG_BT_CTLR_SYNC_PERIODIC_CTE_TYPE_FILTERING) && \ 50 !defined(CONFIG_BT_CTLR_CTEINLINE_SUPPORT) 51 /* Member used to notify event done handler to terminate sync scanning. 52 * Used only when no HW support for parsing PDU for CTEInfo. 53 */ 54 uint8_t is_term:1; 55 #endif /* CONFIG_BT_CTLR_SYNC_PERIODIC_CTE_TYPE_FILTERING && !CONFIG_BT_CTLR_CTEINLINE_SUPPORT */ 56 57 uint8_t is_stop:1; /* sync terminate or cancel requested */ 58 uint8_t sync_expire:3; /* countdown of 6 before fail to establish */ 59 60 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 61 uint8_t enc : 1; 62 uint8_t num_bis : 5; 63 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 64 65 #if defined(CONFIG_BT_CTLR_CHECK_SAME_PEER_SYNC) 66 uint8_t sid; 67 #endif /* CONFIG_BT_CTLR_CHECK_SAME_PEER_SYNC */ 68 69 /* node rx type with memory aligned storage for sync lost reason. 70 * HCI will reference the value using the pdu member of 71 * struct node_rx_pdu. 72 */ 73 struct { 74 struct node_rx_pdu rx; 75 /* Dummy declaration to ensure space allocated to hold one pdu bytes */ 76 uint8_t dummy; 77 } node_rx_lost; 78 79 /* Not-Null when sync was setup and Controller is waiting for first AUX_SYNC_IND PDU. 80 * It means the sync was not estalished yet. 81 */ 82 struct node_rx_pdu *node_rx_sync_estab; 83 84 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 85 struct { 86 struct node_rx_pdu *node_rx_estab; 87 88 /* Non-Null when creating sync, reset in ISR context on 89 * synchronisation state and checked in Thread context when 90 * cancelling sync create, hence the volatile keyword. 91 */ 92 struct ll_sync_iso_set *volatile sync_iso; 93 } iso; 94 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 95 96 uint16_t data_len; 97 }; 98 99 struct node_rx_sync { 100 uint8_t status; 101 uint8_t phy; 102 uint16_t interval; 103 uint8_t sca; 104 }; 105 106 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 107 struct ll_sync_iso_set { 108 struct ull_hdr ull; 109 struct lll_sync_iso lll; 110 111 /* Periodic Advertising Sync that contained the BIGInfo */ 112 struct ll_sync_set *sync; 113 114 /* Periodic Advertising Sync timeout */ 115 uint16_t timeout; 116 uint16_t volatile timeout_reload; /* Non-zero when sync established */ 117 uint16_t timeout_expire; /* timeout countdown */ 118 uint8_t big_handle; 119 120 /* Encryption */ 121 uint8_t gltk[16]; 122 123 /* node rx type with memory aligned storage for sync lost reason. 124 * HCI will reference the value using the pdu member of 125 * struct node_rx_pdu. 126 */ 127 struct { 128 struct node_rx_pdu rx; 129 /* Dummy declaration to ensure space allocated to hold two pdu bytes */ 130 uint8_t dummy[2]; 131 } node_rx_lost; 132 }; 133 134 struct node_rx_sync_iso { 135 uint8_t status; 136 uint16_t interval; 137 }; 138 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 139
