/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef H_BLE_LL_CONN_PRIV_
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#define H_BLE_LL_CONN_PRIV_
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#include "controller/ble_ll_conn.h"
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#include "controller/ble_ll_hci.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Definitions for min/max RX/TX time/bytes values allowed for connections.
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* Source: Core 5.0 specification, Vol 6, Part B, section 4.5.10
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*/
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#define BLE_LL_CONN_SUPP_TIME_MIN (328) /* usecs */
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#define BLE_LL_CONN_SUPP_TIME_MAX (17040) /* usecs */
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#define BLE_LL_CONN_SUPP_TIME_MIN_UNCODED (328) /* usecs */
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#define BLE_LL_CONN_SUPP_TIME_MAX_UNCODED (2120) /* usecs */
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#define BLE_LL_CONN_SUPP_TIME_MIN_CODED (2704) /* usecs */
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#define BLE_LL_CONN_SUPP_TIME_MAX_CODED (17040) /* usecs */
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#define BLE_LL_CONN_SUPP_BYTES_MIN (27) /* bytes */
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#define BLE_LL_CONN_SUPP_BYTES_MAX (251) /* bytes */
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/* Connection event timing */
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#define BLE_LL_CONN_INITIAL_OFFSET (1250)
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#define BLE_LL_CONN_ITVL_USECS (1250)
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#define BLE_LL_CONN_TX_WIN_USECS (1250)
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#define BLE_LL_CONN_TX_OFF_USECS (1250)
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#define BLE_LL_CONN_CE_USECS (625)
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#define BLE_LL_CONN_TX_WIN_MIN (1) /* in tx win units */
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#define BLE_LL_CONN_PERIPH_LATENCY_MAX (499)
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/* Connection handle range */
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#define BLE_LL_CONN_MAX_CONN_HANDLE (0x0EFF)
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/* Offset (in bytes) of advertising address in connect request */
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#define BLE_LL_CONN_REQ_ADVA_OFF (BLE_LL_PDU_HDR_LEN + BLE_DEV_ADDR_LEN)
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/* Default authenticated payload timeout (30 seconds; in 10 msecs increments) */
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#define BLE_LL_CONN_DEF_AUTH_PYLD_TMO (3000)
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#define BLE_LL_CONN_AUTH_PYLD_OS_TMO(x) ble_npl_time_ms_to_ticks32((x) * 10)
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#if MYNEWT_VAL(BLE_LL_CONN_STRICT_SCHED)
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#define BLE_LL_CONN_CSS_NO_SLOT (UINT16_MAX)
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#endif
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/* Global Link Layer connection parameters */
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struct ble_ll_conn_global_params
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{
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#if MYNEWT_VAL(BLE_LL_ROLE_CENTRAL) || MYNEWT_VAL(BLE_LL_ROLE_PERIPHERAL)
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uint8_t supp_max_tx_octets;
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uint8_t supp_max_rx_octets;
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uint8_t conn_init_max_tx_octets;
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uint8_t sugg_tx_octets;
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uint16_t sugg_tx_time;
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uint16_t conn_init_max_tx_time;
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uint16_t conn_init_max_tx_time_uncoded;
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uint16_t conn_init_max_tx_time_coded;
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uint16_t supp_max_tx_time;
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uint16_t supp_max_rx_time;
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_ENHANCED_CONN_UPDATE)
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uint16_t acc_subrate_min;
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uint16_t acc_subrate_max;
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uint16_t acc_max_latency;
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uint16_t acc_cont_num;
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uint16_t acc_supervision_tmo;
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#endif
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#endif
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};
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extern struct ble_ll_conn_global_params g_ble_ll_conn_params;
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_PERIODIC_ADV_SYNC_TRANSFER)
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struct ble_ll_conn_sync_transfer_params
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{
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uint32_t sync_timeout_us;
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uint16_t max_skip;
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uint8_t mode;
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};
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extern struct ble_ll_conn_sync_transfer_params g_ble_ll_conn_sync_transfer_params;
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#endif
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/* Some data structures used by other LL routines */
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SLIST_HEAD(ble_ll_conn_active_list, ble_ll_conn_sm);
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STAILQ_HEAD(ble_ll_conn_free_list, ble_ll_conn_sm);
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extern struct ble_ll_conn_active_list g_ble_ll_conn_active_list;
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extern struct ble_ll_conn_free_list g_ble_ll_conn_free_list;
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struct ble_ll_conn_create_scan {
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uint8_t filter_policy;
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uint8_t own_addr_type;
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uint8_t peer_addr_type;
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uint8_t peer_addr[BLE_DEV_ADDR_LEN];
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_EXT_ADV)
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uint8_t init_phy_mask;
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#endif
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struct {
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uint16_t itvl;
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uint16_t window;
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} scan_params[2];
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};
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struct ble_ll_conn_create_params {
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uint32_t conn_itvl;
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uint32_t conn_itvl_ticks;
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uint8_t conn_itvl_usecs;
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uint16_t conn_latency;
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uint16_t supervision_timeout;
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uint16_t min_ce_len;
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uint16_t max_ce_len;
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};
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struct ble_ll_conn_create_sm {
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struct ble_ll_conn_sm *connsm;
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_EXT_ADV)
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struct ble_ll_conn_create_params params[3];
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#endif
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};
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extern struct ble_ll_conn_create_sm g_ble_ll_conn_create_sm;
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extern struct ble_ll_conn_sm *g_ble_ll_conn_css_ref;
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/* Generic interface */
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struct ble_ll_len_req;
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struct ble_mbuf_hdr;
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struct ble_ll_adv_sm;
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struct hci_create_conn
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{
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uint16_t scan_itvl;
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uint16_t scan_window;
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uint8_t filter_policy;
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uint8_t peer_addr_type;
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uint8_t peer_addr[BLE_DEV_ADDR_LEN];
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uint8_t own_addr_type;
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uint16_t conn_itvl_min;
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uint16_t conn_itvl_max;
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uint16_t conn_latency;
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uint16_t supervision_timeout;
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uint16_t min_ce_len;
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uint16_t max_ce_len;
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};
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void ble_ll_conn_sm_new(struct ble_ll_conn_sm *connsm);
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void ble_ll_conn_end(struct ble_ll_conn_sm *connsm, uint8_t ble_err);
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void ble_ll_conn_enqueue_pkt(struct ble_ll_conn_sm *connsm, struct os_mbuf *om,
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uint8_t hdr_byte, uint16_t length);
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struct ble_ll_conn_sm *ble_ll_conn_sm_get(void);
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void ble_ll_conn_central_init(struct ble_ll_conn_sm *connsm,
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struct ble_ll_conn_create_scan *cc_scan,
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struct ble_ll_conn_create_params *cc_params);
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struct ble_ll_conn_sm *ble_ll_conn_find_by_handle(uint16_t handle);
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void ble_ll_conn_update_eff_data_len(struct ble_ll_conn_sm *connsm);
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/* Advertising interface */
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int ble_ll_conn_periph_start(uint8_t *rxbuf, uint8_t pat,
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struct ble_mbuf_hdr *rxhdr, bool force_csa2);
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/* Link Layer interface */
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void ble_ll_conn_module_init(void);
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void ble_ll_conn_set_global_chanmap(uint8_t num_used_chans, const uint8_t *chanmap);
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void ble_ll_conn_module_reset(void);
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void ble_ll_conn_tx_pkt_in(struct os_mbuf *om, uint16_t handle, uint16_t len);
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int ble_ll_conn_rx_isr_start(struct ble_mbuf_hdr *rxhdr, uint32_t aa);
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int ble_ll_conn_rx_isr_end(uint8_t *rxbuf, struct ble_mbuf_hdr *rxhdr);
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void ble_ll_conn_rx_data_pdu(struct os_mbuf *rxpdu, struct ble_mbuf_hdr *hdr);
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void ble_ll_conn_wfr_timer_exp(void);
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int ble_ll_conn_is_lru(struct ble_ll_conn_sm *s1, struct ble_ll_conn_sm *s2);
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uint32_t ble_ll_conn_get_ce_end_time(void);
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void ble_ll_conn_event_halt(void);
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/* HCI */
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void ble_ll_disconn_comp_event_send(struct ble_ll_conn_sm *connsm,
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uint8_t reason);
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void ble_ll_auth_pyld_tmo_event_send(struct ble_ll_conn_sm *connsm);
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int ble_ll_conn_hci_disconnect_cmd(const struct ble_hci_lc_disconnect_cp *cmd);
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int ble_ll_conn_hci_rd_rem_ver_cmd(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_create(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_update(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_set_chan_class(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_param_rr(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_param_nrr(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_create_cancel(ble_ll_hci_post_cmd_complete_cb *post_cmd_cb);
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void ble_ll_conn_num_comp_pkts_event_send(struct ble_ll_conn_sm *connsm);
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void ble_ll_conn_comp_event_send(struct ble_ll_conn_sm *connsm, uint8_t status,
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uint8_t *evbuf, struct ble_ll_adv_sm *advsm);
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void ble_ll_conn_timeout(struct ble_ll_conn_sm *connsm, uint8_t ble_err);
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int ble_ll_conn_hci_chk_conn_params(uint16_t itvl_min, uint16_t itvl_max,
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uint16_t latency, uint16_t spvn_tmo);
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int ble_ll_conn_hci_read_rem_features(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_rd_rssi(const uint8_t *cmdbuf, uint8_t len, uint8_t *rspbuf,
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uint8_t *rsplen);
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int ble_ll_conn_hci_rd_chan_map(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_set_data_len(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_le_start_encrypt(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_hci_le_ltk_reply(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_le_ltk_neg_reply(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_wr_auth_pyld_tmo(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_rd_auth_pyld_tmo(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_SCA_UPDATE)
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int ble_ll_conn_req_peer_sca(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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#endif
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_ENHANCED_CONN_UPDATE)
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int ble_ll_conn_hci_set_default_subrate(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_conn_hci_subrate_req(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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#endif
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LE_PING)
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void ble_ll_conn_auth_pyld_timer_start(struct ble_ll_conn_sm *connsm);
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#else
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#define ble_ll_conn_auth_pyld_timer_start(x)
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#endif
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_CTRL_TO_HOST_FLOW_CONTROL)
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void ble_ll_conn_cth_flow_set_buffers(uint16_t num_buffers);
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bool ble_ll_conn_cth_flow_enable(bool enabled);
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void ble_ll_conn_cth_flow_process_cmd(const uint8_t *cmdbuf);
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#endif
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void ble_ll_conn_itvl_to_ticks(uint32_t itvl,
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uint32_t *itvl_ticks, uint8_t *itvl_usecs);
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int ble_ll_hci_cmd_rx(uint8_t *cmd, void *arg);
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int ble_ll_hci_acl_rx(struct os_mbuf *om, void *arg);
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int ble_ll_conn_hci_le_rd_phy(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rsp, uint8_t *rsplen);
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int ble_ll_conn_hci_le_set_phy(const uint8_t *cmdbuf, uint8_t len);
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int ble_ll_conn_phy_update_if_needed(struct ble_ll_conn_sm *connsm);
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_EXT_ADV)
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int ble_ll_conn_hci_ext_create(const uint8_t *cmdbuf, uint8_t len);
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#endif
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#if MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_PERIODIC_ADV_SYNC_TRANSFER)
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int ble_ll_set_sync_transfer_params(const uint8_t *cmdbuf, uint8_t len,
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uint8_t *rspbuf, uint8_t *rsplen);
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int ble_ll_set_default_sync_transfer_params(const uint8_t *cmdbuf, uint8_t len);
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#endif
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#if MYNEWT_VAL(BLE_LL_CONN_STRICT_SCHED)
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void ble_ll_conn_css_set_next_slot(uint16_t slot_idx);
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uint16_t ble_ll_conn_css_get_next_slot(void);
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int ble_ll_conn_css_is_slot_busy(uint16_t slot_idx);
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int ble_ll_conn_css_move(struct ble_ll_conn_sm *connsm, uint16_t slot_idx);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_BLE_LL_CONN_PRIV_ */
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