1 /* 2 * Copyright (c) 2018-2019 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 enum llcp { 8 LLCP_NONE, 9 LLCP_CONN_UPD, 10 LLCP_CHAN_MAP, 11 12 /* 13 * LLCP_TERMINATE, 14 * LLCP_FEATURE_EXCHANGE, 15 * LLCP_VERSION_EXCHANGE, 16 */ 17 18 #if defined(CONFIG_BT_CTLR_LE_ENC) 19 LLCP_ENCRYPTION, 20 #endif /* CONFIG_BT_CTLR_LE_ENC */ 21 22 LLCP_CONNECTION_PARAM_REQ, 23 24 #if defined(CONFIG_BT_CTLR_LE_PING) 25 LLCP_PING, 26 #endif /* CONFIG_BT_CTLR_LE_PING */ 27 28 #if defined(CONFIG_BT_CTLR_PHY) 29 LLCP_PHY_UPD, 30 #endif /* CONFIG_BT_CTLR_PHY */ 31 }; 32 33 struct ll_conn { 34 struct ull_hdr ull; 35 struct lll_conn lll; 36 37 uint16_t connect_expire; 38 uint16_t supervision_reload; 39 uint16_t supervision_expire; 40 uint16_t procedure_reload; 41 uint16_t procedure_expire; 42 43 #if defined(CONFIG_BT_CTLR_LE_PING) 44 uint16_t appto_reload; 45 uint16_t appto_expire; 46 uint16_t apto_reload; 47 uint16_t apto_expire; 48 #endif /* CONFIG_BT_CTLR_LE_PING */ 49 50 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 51 uint16_t default_tx_octets; 52 53 #if defined(CONFIG_BT_CTLR_PHY) 54 uint16_t default_tx_time; 55 #endif /* CONFIG_BT_CTLR_PHY */ 56 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 57 58 #if defined(CONFIG_BT_CTLR_CHECK_SAME_PEER_CONN) 59 uint8_t own_id_addr_type:1; 60 uint8_t peer_id_addr_type:1; 61 uint8_t own_id_addr[BDADDR_SIZE]; 62 uint8_t peer_id_addr[BDADDR_SIZE]; 63 #endif /* CONFIG_BT_CTLR_CHECK_SAME_PEER_CONN */ 64 65 union { 66 struct { 67 uint8_t fex_valid:1; 68 uint8_t txn_lock:1; 69 #if defined(CONFIG_BT_CTLR_CONN_META) 70 uint8_t is_must_expire:1; 71 #endif /* CONFIG_BT_CTLR_CONN_META */ 72 } common; 73 74 #if defined(CONFIG_BT_PERIPHERAL) 75 struct { 76 uint8_t fex_valid:1; 77 uint8_t txn_lock:1; 78 #if defined(CONFIG_BT_CTLR_CONN_META) 79 uint8_t is_must_expire:1; 80 #endif /* CONFIG_BT_CTLR_CONN_META */ 81 uint8_t latency_cancel:1; 82 uint8_t sca:3; 83 #if defined(CONFIG_BT_CTLR_LE_ENC) 84 uint8_t llcp_type; 85 #endif /* CONFIG_BT_CTLR_LE_ENC */ 86 #if defined(CONFIG_BT_CTLR_CONN_RANDOM_FORCE) 87 uint32_t force; 88 #endif /* CONFIG_BT_CTLR_CONN_RANDOM_FORCE */ 89 #if defined(CONFIG_BT_CTLR_CONN_PARAM_REQ) 90 uint32_t ticks_to_offset; 91 #endif /* CONFIG_BT_CTLR_CONN_PARAM_REQ */ 92 } periph; 93 #endif /* CONFIG_BT_PERIPHERAL */ 94 95 #if defined(CONFIG_BT_CENTRAL) 96 struct { 97 uint8_t fex_valid:1; 98 uint8_t txn_lock:1; 99 #if defined(CONFIG_BT_CTLR_CONN_META) 100 uint8_t is_must_expire:1; 101 #endif /* CONFIG_BT_CTLR_CONN_META */ 102 uint8_t terminate_ack:1; 103 } central; 104 #endif /* CONFIG_BT_CENTRAL */ 105 }; 106 107 uint8_t llcp_req; 108 uint8_t llcp_ack; 109 110 uint8_t llcp_type; 111 112 struct { 113 union { 114 struct { 115 uint16_t instant; 116 uint16_t *pdu_win_offset; 117 uint32_t ticks_anchor; 118 } conn_upd; 119 120 struct { 121 uint8_t initiate:1; 122 uint8_t chm[5]; 123 uint16_t instant; 124 } chan_map; 125 126 #if defined(CONFIG_BT_CTLR_PHY) 127 struct { 128 uint8_t initiate:1; 129 uint8_t cmd:1; 130 uint8_t tx:3; 131 uint8_t rx:3; 132 uint16_t instant; 133 } phy_upd_ind; 134 #endif /* CONFIG_BT_CTLR_PHY */ 135 }; 136 137 #if defined(CONFIG_BT_CTLR_LE_ENC) 138 struct { 139 enum { 140 LLCP_ENC_STATE_INPROG, 141 LLCP_ENC_STATE_INIT, 142 LLCP_ENC_STATE_LTK_WAIT, 143 LLCP_ENC_STATE_ENC_WAIT, 144 } state:2 __packed; 145 uint8_t error_code; 146 uint8_t skd[16]; 147 } encryption; 148 #endif /* CONFIG_BT_CTLR_LE_ENC */ 149 } llcp; 150 151 struct node_rx_pdu *llcp_rx; 152 153 struct { 154 uint8_t req; 155 uint8_t ack; 156 enum { 157 LLCP_CUI_STATE_INPROG, 158 LLCP_CUI_STATE_USE, 159 LLCP_CUI_STATE_SELECT, 160 LLCP_CUI_STATE_OFFS_REQ, 161 LLCP_CUI_STATE_OFFS_RDY, 162 LLCP_CUI_STATE_REJECT, 163 } state:3 __packed; 164 uint8_t cmd:1; 165 uint16_t interval; 166 uint16_t latency; 167 uint16_t timeout; 168 uint32_t win_offset_us; 169 uint8_t win_size; 170 } llcp_cu; 171 172 struct { 173 uint8_t req; 174 uint8_t ack; 175 /* TODO: 8, 16, 32 or 64 based on local supported features */ 176 uint64_t features_conn; 177 uint64_t features_peer; 178 } llcp_feature; 179 180 struct { 181 uint8_t req; 182 uint8_t ack; 183 uint8_t tx:1; 184 uint8_t rx:1; 185 uint8_t version_number; 186 uint16_t company_id; 187 uint16_t sub_version_number; 188 } llcp_version; 189 190 struct { 191 uint8_t req; 192 uint8_t ack; 193 uint8_t reason_own; 194 uint8_t reason_final; 195 /* node rx type with memory aligned storage for terminate 196 * reason. 197 * HCI will reference the value using the pdu member of 198 * struct node_rx_pdu. 199 */ 200 struct { 201 struct node_rx_hdr hdr; 202 union { 203 uint8_t pdu[0] __aligned(4); 204 uint8_t reason; 205 }; 206 } node_rx; 207 } llcp_terminate; 208 209 #if defined(CONFIG_BT_CTLR_LE_ENC) 210 struct { 211 uint8_t req; 212 uint8_t ack; 213 uint8_t pause_rx:1; 214 uint8_t pause_tx:1; 215 uint8_t refresh:1; 216 uint8_t ediv[2]; 217 uint8_t rand[8]; 218 uint8_t ltk[16]; 219 } llcp_enc; 220 #endif /* CONFIG_BT_CTLR_LE_ENC */ 221 222 #if defined(CONFIG_BT_CTLR_CONN_PARAM_REQ) 223 struct { 224 uint8_t req; 225 uint8_t ack; 226 enum { 227 LLCP_CPR_STATE_REQ, 228 LLCP_CPR_STATE_RSP, 229 LLCP_CPR_STATE_APP_REQ, 230 LLCP_CPR_STATE_APP_WAIT, 231 LLCP_CPR_STATE_RSP_WAIT, 232 LLCP_CPR_STATE_UPD_WAIT, 233 LLCP_CPR_STATE_UPD, 234 LLCP_CPR_STATE_OFFS_REQ, 235 LLCP_CPR_STATE_OFFS_RDY, 236 } state:4 __packed; 237 uint8_t cmd:1; 238 uint8_t disabled:1; 239 uint8_t status; 240 uint16_t interval_min; 241 uint16_t interval_max; 242 uint16_t latency; 243 uint16_t timeout; 244 uint8_t preferred_periodicity; 245 uint16_t reference_conn_event_count; 246 uint16_t offset0; 247 uint16_t offset1; 248 uint16_t offset2; 249 uint16_t offset3; 250 uint16_t offset4; 251 uint16_t offset5; 252 uint16_t *pdu_win_offset0; 253 uint32_t ticks_ref; 254 uint32_t ticks_to_offset_next; 255 } llcp_conn_param; 256 #endif /* CONFIG_BT_CTLR_CONN_PARAM_REQ */ 257 258 #if defined(CONFIG_BT_CTLR_DATA_LENGTH) 259 struct { 260 uint8_t req; 261 uint8_t ack; 262 uint8_t state:3; 263 #define LLCP_LENGTH_STATE_REQ 0 264 #define LLCP_LENGTH_STATE_REQ_ACK_WAIT 1 265 #define LLCP_LENGTH_STATE_RSP_WAIT 2 266 #define LLCP_LENGTH_STATE_RSP_ACK_WAIT 3 267 #define LLCP_LENGTH_STATE_RESIZE 4 268 #define LLCP_LENGTH_STATE_RESIZE_RSP 5 269 #define LLCP_LENGTH_STATE_RESIZE_RSP_ACK_WAIT 6 270 uint8_t disabled:1; 271 uint16_t rx_octets; 272 uint16_t tx_octets; 273 #if defined(CONFIG_BT_CTLR_PHY) 274 uint16_t rx_time; 275 uint16_t tx_time; 276 #endif /* CONFIG_BT_CTLR_PHY */ 277 struct { 278 uint16_t tx_octets; 279 #if defined(CONFIG_BT_CTLR_PHY) 280 uint16_t tx_time; 281 #endif /* CONFIG_BT_CTLR_PHY */ 282 } cache; 283 } llcp_length; 284 #endif /* CONFIG_BT_CTLR_DATA_LENGTH */ 285 286 #if defined(CONFIG_BT_CTLR_PHY) 287 struct { 288 uint8_t req; 289 uint8_t ack; 290 uint8_t state:2; 291 #define LLCP_PHY_STATE_REQ 0 292 #define LLCP_PHY_STATE_ACK_WAIT 1 293 #define LLCP_PHY_STATE_RSP_WAIT 2 294 #define LLCP_PHY_STATE_UPD 3 295 uint8_t tx:3; 296 uint8_t rx:3; 297 uint8_t pause_tx:1; 298 uint8_t flags:1; 299 uint8_t cmd:1; 300 uint8_t disabled:1; 301 } llcp_phy; 302 303 uint8_t phy_pref_tx:3; 304 uint8_t phy_pref_rx:3; 305 #endif /* CONFIG_BT_CTLR_PHY */ 306 307 #if defined(CONFIG_BT_CTLR_LLID_DATA_START_EMPTY) 308 /* Detect empty L2CAP start frame */ 309 uint8_t start_empty:1; 310 #endif /* CONFIG_BT_CTLR_LLID_DATA_START_EMPTY */ 311 312 struct node_tx *tx_head; 313 struct node_tx *tx_ctrl; 314 struct node_tx *tx_ctrl_last; 315 struct node_tx *tx_data; 316 struct node_tx *tx_data_last; 317 318 uint8_t chm_updated; 319 320 #if defined(CONFIG_BT_CTLR_PERIPHERAL_ISO) 321 struct { 322 uint8_t req; 323 uint8_t ack; 324 enum { 325 LLCP_CIS_STATE_REQ, 326 LLCP_CIS_STATE_RSP_WAIT, 327 LLCP_CIS_STATE_IND_WAIT, 328 LLCP_CIS_STATE_INST_WAIT 329 } state:8 __packed; 330 uint8_t cig_id; 331 uint16_t cis_handle; 332 uint8_t cis_id; 333 uint32_t c_max_sdu:12; 334 uint32_t p_max_sdu:12; 335 uint32_t framed:1; 336 uint32_t cis_offset_min; 337 uint32_t cis_offset_max; 338 uint16_t conn_event_count; 339 } llcp_cis; 340 #endif /* CONFIG_BT_CTLR_PERIPHERAL_ISO */ 341 342 #if defined(CONFIG_BT_CTLR_DF_CONN_CTE_REQ) 343 struct lll_df_conn_rx_params df_rx_params; 344 #endif /* CONFIG_BT_CTLR_DF_CONN_CTE_REQ */ 345 }; 346 347 struct node_rx_cc { 348 uint8_t status; 349 uint8_t role; 350 uint8_t peer_addr_type; 351 uint8_t peer_addr[BDADDR_SIZE]; 352 #if defined(CONFIG_BT_CTLR_PRIVACY) 353 uint8_t peer_rpa[BDADDR_SIZE]; 354 uint8_t local_rpa[BDADDR_SIZE]; 355 #endif /* CONFIG_BT_CTLR_PRIVACY */ 356 uint16_t interval; 357 uint16_t latency; 358 uint16_t timeout; 359 uint8_t sca; 360 }; 361 362 struct node_rx_cu { 363 uint8_t status; 364 uint16_t interval; 365 uint16_t latency; 366 uint16_t timeout; 367 }; 368 369 struct node_rx_cs { 370 uint8_t csa; 371 }; 372 373 struct node_rx_pu { 374 uint8_t status; 375 uint8_t tx; 376 uint8_t rx; 377 }; 378
