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 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 32 struct data_pdu_length { 33 uint16_t max_tx_octets; 34 uint16_t max_rx_octets; 35 uint16_t max_tx_time; 36 uint16_t max_rx_time; 37 }; 38 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 39 40 struct lll_conn { 41 struct lll_hdr hdr; 42 43 uint8_t access_addr[4]; 44 uint8_t crc_init[3]; 45 46 uint16_t handle; 47 uint16_t interval; 48 uint16_t latency; 49 50 uint16_t latency_prepare; 51 uint16_t latency_event; 52 uint16_t event_counter; 53 54 uint8_t data_chan_map[PDU_CHANNEL_MAP_SIZE]; 55 uint8_t data_chan_count:6; 56 uint8_t data_chan_sel:1; 57 uint8_t role:1; 58 59 union { 60 struct { 61 uint8_t data_chan_hop; 62 uint8_t data_chan_use; 63 }; 64 65 uint16_t data_chan_id; 66 }; 67 68 union { 69 struct { 70 uint8_t initiated:1; 71 uint8_t cancelled:1; 72 } central; 73 #if defined(CONFIG_BT_PERIPHERAL) 74 struct { 75 uint8_t initiated:1; 76 uint8_t cancelled:1; 77 uint8_t latency_enabled:1; 78 79 uint32_t window_widening_periodic_us; 80 uint32_t window_widening_max_us; 81 uint32_t window_widening_prepare_us; 82 uint32_t window_widening_event_us; 83 uint32_t window_size_prepare_us; 84 uint32_t window_size_event_us; 85 } periph; 86 #endif /* CONFIG_BT_PERIPHERAL */ 87 }; 88 89 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 90 struct { 91 struct data_pdu_length local; 92 struct data_pdu_length remote; 93 struct data_pdu_length eff; 94 #if defined(CONFIG_BT_CTLR_PHY) 95 uint16_t default_tx_time; 96 #endif 97 uint16_t default_tx_octets; 98 uint8_t update; 99 } dle; 100 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 101 102 #if defined(CONFIG_BT_CTLR_PHY) 103 uint8_t phy_tx:3; 104 uint8_t phy_flags:1; 105 uint8_t phy_tx_time:3; 106 uint8_t phy_rx:3; 107 #endif /* CONFIG_BT_CTLR_PHY */ 108 109 MEMQ_DECLARE(tx); 110 memq_link_t link_tx; 111 memq_link_t *link_tx_free; 112 uint8_t packet_tx_head_len; 113 uint8_t packet_tx_head_offset; 114 115 uint8_t sn:1; 116 uint8_t nesn:1; 117 uint8_t empty:1; 118 119 #if defined(CONFIG_BT_CTLR_LE_ENC) 120 uint8_t enc_rx:1; 121 uint8_t enc_tx:1; 122 123 struct ccm ccm_rx; 124 struct ccm ccm_tx; 125 #endif /* CONFIG_BT_CTLR_LE_ENC */ 126 127 #if defined(CONFIG_BT_CTLR_SLOT_RESERVATION_UPDATE) 128 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) || defined(CONFIG_BT_CTLR_PHY) 129 uint8_t evt_len_upd:1; 130 uint8_t evt_len_upd_delayed:1; 131 #endif /* CONFIG_BT_CTLR_DATA_LENGTH || CONFIG_BT_CTLR_PHY */ 132 #endif /* CONFIG_BT_CTLR_SLOT_RESERVATION_UPDATE */ 133 134 #if defined(CONFIG_BT_CTLR_CONN_RSSI) 135 uint8_t rssi_latest; 136 #if defined(CONFIG_BT_CTLR_CONN_RSSI_EVENT) 137 uint8_t rssi_reported; 138 uint8_t rssi_sample_count; 139 #endif /* CONFIG_BT_CTLR_CONN_RSSI_EVENT */ 140 #endif /* CONFIG_BT_CTLR_CONN_RSSI */ 141 142 #if defined(CONFIG_BT_CTLR_CONN_META) 143 struct lll_conn_meta conn_meta; 144 #endif /* CONFIG_BT_CTLR_CONN_META */ 145 146 #if defined(CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL) 147 int8_t tx_pwr_lvl; 148 #endif 149 150 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_RX) 151 struct lll_df_conn_rx_cfg df_rx_cfg; 152 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_RX */ 153 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_TX) 154 struct lll_df_conn_tx_cfg df_tx_cfg; 155 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_TX */ 156 }; 157 158 int lll_conn_init(void); 159 int lll_conn_reset(void); 160 void lll_conn_flush(uint16_t handle, struct lll_conn *lll); 161 162 void lll_conn_prepare_reset(void); 163 void lll_conn_abort_cb(struct lll_prepare_param *prepare_param, void *param); 164 void lll_conn_isr_rx(void *param); 165 void lll_conn_isr_tx(void *param); 166 void lll_conn_rx_pkt_set(struct lll_conn *lll); 167 void lll_conn_tx_pkt_set(struct lll_conn *lll, struct pdu_data *pdu_data_tx); 168 void lll_conn_pdu_tx_prep(struct lll_conn *lll, struct pdu_data **pdu_data_tx); 169 uint8_t lll_conn_force_md_cnt_set(uint8_t force_md_cnt); 170 171 extern struct lll_conn *ull_conn_lll_get(uint16_t handle); 172 extern void ull_conn_lll_tx_demux_sched(struct lll_conn *lll); 173 extern void ull_conn_lll_ack_enqueue(uint16_t handle, struct node_tx *tx); 174 extern uint16_t ull_conn_lll_max_tx_octets_get(struct lll_conn *lll); 175
