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 uint8_t peer_id_addr[BDADDR_SIZE]; 36 uint8_t peer_id_addr_type:1; 37 uint8_t peer_addr_resolved:1; 38 39 uint8_t rx_enable:1; 40 41 #if defined(CONFIG_BT_CTLR_SYNC_PERIODIC_ADI_SUPPORT) 42 uint8_t nodups:1; 43 #endif 44 45 #if defined(CONFIG_BT_CTLR_SYNC_PERIODIC_CTE_TYPE_FILTERING) && \ 46 !defined(CONFIG_BT_CTLR_CTEINLINE_SUPPORT) 47 /* Member used to notify event done handler to terminate sync scanning. 48 * Used only when no HW support for parsing PDU for CTEInfo. 49 */ 50 uint8_t is_term:1; 51 #endif /* CONFIG_BT_CTLR_SYNC_PERIODIC_CTE_TYPE_FILTERING && !CONFIG_BT_CTLR_CTEINLINE_SUPPORT */ 52 53 uint8_t is_stop:1; /* sync terminate or cancel requested */ 54 uint8_t sync_expire:3; /* countdown of 6 before fail to establish */ 55 56 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 57 uint8_t enc : 1; 58 uint8_t num_bis : 5; 59 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 60 61 uint8_t sid; 62 63 /* node rx type with memory aligned storage for sync lost reason. 64 * HCI will reference the value using the pdu member of 65 * struct node_rx_pdu. 66 */ 67 struct { 68 struct node_rx_pdu rx; 69 /* Dummy declaration to ensure space allocated to hold one pdu bytes */ 70 uint8_t dummy; 71 } node_rx_lost; 72 73 /* Not-Null when sync was setup and Controller is waiting for first AUX_SYNC_IND PDU. 74 * It means the sync was not estalished yet. 75 */ 76 struct node_rx_pdu *node_rx_sync_estab; 77 78 #if defined(CONFIG_BT_CTLR_SCAN_AUX_USE_CHAINS) 79 /* Extra node_rx for generating incomplete report */ 80 struct node_rx_pdu *rx_incomplete; 81 #endif /* CONFIG_BT_CTLR_SCAN_AUX_USE_CHAINS */ 82 83 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 84 struct { 85 struct node_rx_pdu *node_rx_estab; 86 87 /* Non-Null when creating sync, reset in ISR context on 88 * synchronisation state and checked in Thread context when 89 * cancelling sync create, hence the volatile keyword. 90 */ 91 struct ll_sync_iso_set *volatile sync_iso; 92 } iso; 93 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 94 95 #if !defined(CONFIG_BT_CTLR_SCAN_AUX_USE_CHAINS) 96 uint16_t data_len; 97 #endif /* !CONFIG_BT_CTLR_SCAN_AUX_USE_CHAINS */ 98 #if defined(CONFIG_BT_CTLR_SYNC_TRANSFER_SENDER) 99 uint16_t interval; 100 #endif /* CONFIG_BT_CTLR_SYNC_TRANSFER_SENDER */ 101 }; 102 103 struct node_rx_sync { 104 uint8_t status; 105 uint8_t phy; 106 uint16_t interval; 107 uint8_t sca; 108 }; 109 110 struct node_rx_past_received { 111 struct node_rx_sync rx_sync; 112 uint16_t conn_handle; 113 uint16_t service_data; 114 }; 115 116 #if defined(CONFIG_BT_CTLR_SYNC_ISO) 117 struct ll_sync_iso_set { 118 struct ull_hdr ull; 119 struct lll_sync_iso lll; 120 121 /* Periodic Advertising Sync that contained the BIGInfo */ 122 struct ll_sync_set *sync; 123 124 /* Pointer to semaphore used for LLL flushing */ 125 struct k_sem *flush_sem; 126 127 /* Periodic Advertising Sync timeout */ 128 uint16_t timeout; 129 uint16_t volatile timeout_reload; /* Non-zero when sync established */ 130 uint16_t timeout_expire; /* timeout countdown */ 131 uint8_t big_handle; 132 133 /* Encryption */ 134 uint8_t gltk[16]; 135 136 /* node rx type with memory aligned storage for sync lost reason. 137 * HCI will reference the value using the pdu member of 138 * struct node_rx_pdu. 139 */ 140 struct { 141 struct node_rx_pdu rx; 142 /* Dummy declaration to ensure space allocated to hold two pdu bytes */ 143 uint8_t dummy[2]; 144 } node_rx_lost; 145 }; 146 147 struct node_rx_sync_iso { 148 uint8_t status; 149 uint16_t interval; 150 }; 151 #endif /* CONFIG_BT_CTLR_SYNC_ISO */ 152
