1 /* 2 * Copyright (c) 2018-2019 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 #if defined(CONFIG_BT_CTLR_CONN_META) 7 #include "lll_conn_meta.h" 8 #endif /* CONFIG_BT_CTLR_CONN_META */ 9 10 #define LLL_CONN_RSSI_SAMPLE_COUNT 10 11 #define LLL_CONN_RSSI_THRESHOLD 4 12 13 #define LLL_CONN_MIC_NONE 0 14 #define LLL_CONN_MIC_PASS 1 15 #define LLL_CONN_MIC_FAIL 2 16 17 struct lll_tx { 18 uint16_t handle; 19 void *node; 20 }; 21 22 struct node_tx { 23 union { 24 void *next; 25 memq_link_t *link; 26 }; 27 28 uint8_t pdu[]; 29 }; 30 31 struct lll_conn { 32 struct lll_hdr hdr; 33 34 uint8_t access_addr[4]; 35 uint8_t crc_init[3]; 36 37 uint16_t handle; 38 uint16_t interval; 39 uint16_t latency; 40 41 uint16_t latency_prepare; 42 uint16_t latency_event; 43 uint16_t event_counter; 44 45 uint8_t data_chan_map[PDU_CHANNEL_MAP_SIZE]; 46 uint8_t data_chan_count:6; 47 uint8_t data_chan_sel:1; 48 uint8_t role:1; 49 50 union { 51 struct { 52 uint8_t data_chan_hop; 53 uint8_t data_chan_use; 54 }; 55 56 uint16_t data_chan_id; 57 }; 58 59 union { 60 struct { 61 uint8_t initiated:1; 62 uint8_t cancelled:1; 63 } central; 64 #if defined(CONFIG_BT_PERIPHERAL) 65 struct { 66 uint8_t initiated:1; 67 uint8_t cancelled:1; 68 uint8_t latency_enabled:1; 69 70 uint32_t window_widening_periodic_us; 71 uint32_t window_widening_max_us; 72 uint32_t window_widening_prepare_us; 73 uint32_t window_widening_event_us; 74 uint32_t window_size_prepare_us; 75 uint32_t window_size_event_us; 76 } periph; 77 #endif /* CONFIG_BT_PERIPHERAL */ 78 }; 79 80 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 81 uint16_t max_tx_octets; 82 uint16_t max_rx_octets; 83 84 #if defined(CONFIG_BT_CTLR_PHY) 85 uint16_t max_tx_time; 86 uint16_t max_rx_time; 87 #endif /* CONFIG_BT_CTLR_PHY */ 88 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 89 90 #if defined(CONFIG_BT_CTLR_PHY) 91 uint8_t phy_tx:3; 92 uint8_t phy_flags:1; 93 uint8_t phy_tx_time:3; 94 uint8_t phy_rx:3; 95 #endif /* CONFIG_BT_CTLR_PHY */ 96 97 MEMQ_DECLARE(tx); 98 memq_link_t link_tx; 99 memq_link_t *link_tx_free; 100 uint8_t packet_tx_head_len; 101 uint8_t packet_tx_head_offset; 102 103 uint8_t sn:1; 104 uint8_t nesn:1; 105 uint8_t empty:1; 106 107 #if defined(CONFIG_BT_CTLR_LE_ENC) 108 uint8_t enc_rx:1; 109 uint8_t enc_tx:1; 110 111 struct ccm ccm_rx; 112 struct ccm ccm_tx; 113 #endif /* CONFIG_BT_CTLR_LE_ENC */ 114 115 #if defined(CONFIG_BT_CTLR_CONN_RSSI) 116 uint8_t rssi_latest; 117 #if defined(CONFIG_BT_CTLR_CONN_RSSI_EVENT) 118 uint8_t rssi_reported; 119 uint8_t rssi_sample_count; 120 #endif /* CONFIG_BT_CTLR_CONN_RSSI_EVENT */ 121 #endif /* CONFIG_BT_CTLR_CONN_RSSI */ 122 123 #if defined(CONFIG_BT_CTLR_CONN_META) 124 struct lll_conn_meta conn_meta; 125 #endif /* CONFIG_BT_CTLR_CONN_META */ 126 127 #if defined(CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL) 128 int8_t tx_pwr_lvl; 129 #endif 130 131 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_REQ) 132 struct lll_df_conn_rx_params df_rx_params; 133 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_REQ */ 134 }; 135 136 int lll_conn_init(void); 137 int lll_conn_reset(void); 138 void lll_conn_flush(uint16_t handle, struct lll_conn *lll); 139 140 void lll_conn_prepare_reset(void); 141 void lll_conn_abort_cb(struct lll_prepare_param *prepare_param, void *param); 142 void lll_conn_isr_rx(void *param); 143 void lll_conn_isr_tx(void *param); 144 void lll_conn_rx_pkt_set(struct lll_conn *lll); 145 void lll_conn_tx_pkt_set(struct lll_conn *lll, struct pdu_data *pdu_data_tx); 146 void lll_conn_pdu_tx_prep(struct lll_conn *lll, struct pdu_data **pdu_data_tx); 147 uint8_t lll_conn_force_md_cnt_set(uint8_t force_md_cnt); 148 149 extern void ull_conn_lll_ack_enqueue(uint16_t handle, struct node_tx *tx); 150 extern uint16_t ull_conn_lll_max_tx_octets_get(struct lll_conn *lll); 151
