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 tifs_tx_us; 47 uint16_t tifs_rx_us; 48 uint16_t tifs_hcto_us; 49 uint16_t tifs_cis_us; 50 51 uint16_t handle; 52 uint16_t interval; 53 54 uint16_t latency; 55 uint16_t latency_prepare; 56 uint16_t lazy_prepare; 57 uint16_t latency_event; 58 uint16_t event_counter; 59 60 uint8_t data_chan_map[PDU_CHANNEL_MAP_SIZE]; 61 uint8_t data_chan_count:6; 62 uint8_t data_chan_sel:1; 63 uint8_t role:1; 64 65 union { 66 struct { 67 uint8_t data_chan_hop; 68 uint8_t data_chan_use; 69 }; 70 71 uint16_t data_chan_id; 72 }; 73 74 union { 75 struct { 76 uint8_t initiated:1; 77 uint8_t cancelled:1; 78 uint8_t forced:1; 79 }; 80 81 struct { 82 uint8_t initiated:1; 83 uint8_t cancelled:1; 84 uint8_t forced:1; 85 } central; 86 87 #if defined(CONFIG_BT_PERIPHERAL) 88 struct { 89 uint8_t initiated:1; 90 uint8_t cancelled:1; 91 uint8_t forced:1; 92 uint8_t latency_enabled:1; 93 94 #if defined(CONFIG_BT_CTLR_PHY) 95 uint8_t phy_rx_event:3; 96 #endif /* CONFIG_BT_CTLR_PHY */ 97 98 uint32_t window_widening_periodic_us; 99 uint32_t window_widening_max_us; 100 uint32_t window_widening_prepare_us; 101 uint32_t window_widening_event_us; 102 uint32_t window_size_prepare_us; 103 uint32_t window_size_event_us; 104 } periph; 105 #endif /* CONFIG_BT_PERIPHERAL */ 106 }; 107 108 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 109 struct { 110 struct data_pdu_length local; 111 struct data_pdu_length remote; 112 struct data_pdu_length eff; 113 #if defined(CONFIG_BT_CTLR_PHY) 114 uint16_t default_tx_time; 115 #endif 116 uint16_t default_tx_octets; 117 uint8_t update; 118 } dle; 119 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 120 121 #if defined(CONFIG_BT_CTLR_PHY) 122 uint8_t phy_tx:3; 123 uint8_t phy_flags:1; 124 uint8_t phy_tx_time:3; 125 uint8_t phy_rx:3; 126 #endif /* CONFIG_BT_CTLR_PHY */ 127 128 MEMQ_DECLARE(tx); 129 memq_link_t link_tx; 130 memq_link_t *link_tx_free; 131 uint8_t packet_tx_head_len; 132 uint8_t packet_tx_head_offset; 133 134 uint8_t sn:1; 135 uint8_t nesn:1; 136 uint8_t empty:1; 137 138 #if defined(CONFIG_BT_CTLR_LE_ENC) 139 uint8_t enc_rx:1; 140 uint8_t enc_tx:1; 141 142 struct ccm ccm_rx; 143 struct ccm ccm_tx; 144 #endif /* CONFIG_BT_CTLR_LE_ENC */ 145 146 #if defined(CONFIG_BT_CTLR_SLOT_RESERVATION_UPDATE) 147 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) || defined(CONFIG_BT_CTLR_PHY) 148 uint8_t evt_len_upd:1; 149 uint8_t evt_len_upd_delayed:1; 150 #endif /* CONFIG_BT_CTLR_DATA_LENGTH || CONFIG_BT_CTLR_PHY */ 151 #endif /* CONFIG_BT_CTLR_SLOT_RESERVATION_UPDATE */ 152 153 #if defined(CONFIG_BT_CTLR_CONN_RSSI) 154 uint8_t rssi_latest; 155 #if defined(CONFIG_BT_CTLR_CONN_RSSI_EVENT) 156 uint8_t rssi_reported; 157 uint8_t rssi_sample_count; 158 #endif /* CONFIG_BT_CTLR_CONN_RSSI_EVENT */ 159 #endif /* CONFIG_BT_CTLR_CONN_RSSI */ 160 161 #if defined(CONFIG_BT_CTLR_CONN_META) 162 struct lll_conn_meta conn_meta; 163 #endif /* CONFIG_BT_CTLR_CONN_META */ 164 165 #if defined(CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL) 166 int8_t tx_pwr_lvl; 167 #endif 168 169 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_RX) 170 struct lll_df_conn_rx_cfg df_rx_cfg; 171 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_RX */ 172 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_TX) 173 struct lll_df_conn_tx_cfg df_tx_cfg; 174 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_TX */ 175 }; 176 177 int lll_conn_init(void); 178 int lll_conn_reset(void); 179 void lll_conn_flush(uint16_t handle, struct lll_conn *lll); 180 181 void lll_conn_prepare_reset(void); 182 int lll_conn_central_is_abort_cb(void *next, void *curr, 183 lll_prepare_cb_t *resume_cb); 184 int lll_conn_peripheral_is_abort_cb(void *next, void *curr, 185 lll_prepare_cb_t *resume_cb); 186 void lll_conn_abort_cb(struct lll_prepare_param *prepare_param, void *param); 187 void lll_conn_isr_rx(void *param); 188 void lll_conn_isr_tx(void *param); 189 void lll_conn_rx_pkt_set(struct lll_conn *lll); 190 void lll_conn_tx_pkt_set(struct lll_conn *lll, struct pdu_data *pdu_data_tx); 191 void lll_conn_pdu_tx_prep(struct lll_conn *lll, struct pdu_data **pdu_data_tx); 192 uint8_t lll_conn_force_md_cnt_set(uint8_t force_md_cnt); 193 194 extern struct lll_conn *ull_conn_lll_get(uint16_t handle); 195 extern void ull_conn_lll_tx_demux_sched(struct lll_conn *lll); 196 extern void ull_conn_lll_ack_enqueue(uint16_t handle, struct node_tx *tx); 197 extern uint16_t ull_conn_lll_max_tx_octets_get(struct lll_conn *lll); 198
