171 lines
3.9 KiB
C
171 lines
3.9 KiB
C
/* hci_core.h - Bluetooth HCI core access */
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/*
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* Copyright (c) 2015-2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* LL connection parameters */
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#define LE_CONN_LATENCY 0x0000
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#define LE_CONN_TIMEOUT 0x002a
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#if defined(CONFIG_BLUETOOTH_BREDR)
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#define LMP_FEAT_PAGES_COUNT 3
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#else
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#define LMP_FEAT_PAGES_COUNT 1
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#endif
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/* SCO settings */
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#define BT_VOICE_CVSD_16BIT 0x0060
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/* k_poll event tags */
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enum {
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BT_EVENT_CMD_TX,
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BT_EVENT_CONN_TX,
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};
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/* bt_dev flags: the flags defined here represent BT controller state */
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enum {
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BT_DEV_ENABLE,
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BT_DEV_READY,
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BT_DEV_ID_STATIC_RANDOM,
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BT_DEV_HAS_PUB_KEY,
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BT_DEV_PUB_KEY_BUSY,
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BT_DEV_ADVERTISING,
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BT_DEV_KEEP_ADVERTISING,
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BT_DEV_SCANNING,
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BT_DEV_EXPLICIT_SCAN,
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BT_DEV_ACTIVE_SCAN,
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BT_DEV_RPA_VALID,
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#if defined(CONFIG_BLUETOOTH_BREDR)
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BT_DEV_ISCAN,
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BT_DEV_PSCAN,
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BT_DEV_INQUIRY,
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#endif /* CONFIG_BLUETOOTH_BREDR */
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/* Total number of flags - must be at the end of the enum */
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BT_DEV_NUM_FLAGS,
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};
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struct bt_dev_le {
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/* LE features */
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uint8_t features[1][8];
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/* LE states */
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uint64_t states;
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#if defined(CONFIG_BLUETOOTH_CONN)
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/* Controller buffer information */
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uint16_t mtu;
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struct k_sem pkts;
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#endif /* CONFIG_BLUETOOTH_CONN */
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};
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#if defined(CONFIG_BLUETOOTH_BREDR)
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struct bt_dev_esco {
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uint16_t pkt_type;
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};
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struct bt_dev_br {
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/* Max controller's acceptable ACL packet length */
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uint16_t mtu;
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struct k_sem pkts;
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};
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#endif
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/* State tracking for the local Bluetooth controller */
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struct bt_dev {
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/* Local Identity Address */
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bt_addr_le_t id_addr;
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/* Current local Random Address */
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bt_addr_le_t random_addr;
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/* Controller version & manufacturer information */
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uint8_t hci_version;
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uint8_t lmp_version;
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uint16_t hci_revision;
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uint16_t lmp_subversion;
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uint16_t manufacturer;
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/* LMP features (pages 0, 1, 2) */
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uint8_t features[LMP_FEAT_PAGES_COUNT][8];
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/* Supported commands */
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uint8_t supported_commands[64];
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struct k_work init;
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ATOMIC_DEFINE(flags, BT_DEV_NUM_FLAGS);
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/* LE controller specific features */
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struct bt_dev_le le;
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#if defined(CONFIG_BLUETOOTH_BREDR)
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/* BR/EDR controller specific features */
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struct bt_dev_br br;
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struct bt_dev_esco esco;
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#endif
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/* Number of commands controller can accept */
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struct k_sem ncmd_sem;
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/* Last sent HCI command */
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struct net_buf *sent_cmd;
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#if !defined(CONFIG_BLUETOOTH_RECV_IS_RX_THREAD)
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/* Queue for incoming HCI events & ACL data */
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struct k_fifo rx_queue;
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#endif
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/* Queue for high priority HCI events which may unlock waiters
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* in other threads. Such events include Number of Completed
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* Packets, as well as the Command Complete/Status events.
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*/
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struct k_fifo rx_prio_queue;
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/* Queue for outgoing HCI commands */
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struct k_fifo cmd_tx_queue;
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/* Registered HCI driver */
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const struct bt_hci_driver *drv;
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#if defined(CONFIG_BLUETOOTH_PRIVACY)
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/* Local Identity Resolving Key */
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uint8_t irk[16];
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/* Work used for RPA rotation */
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struct k_delayed_work rpa_update;
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#endif
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};
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extern struct bt_dev bt_dev;
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extern const struct bt_storage *bt_storage;
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#if defined(CONFIG_BLUETOOTH_SMP) || defined(CONFIG_BLUETOOTH_BREDR)
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extern const struct bt_conn_auth_cb *bt_auth;
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#endif /* CONFIG_BLUETOOTH_SMP || CONFIG_BLUETOOTH_BREDR */
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bool bt_le_conn_params_valid(const struct bt_le_conn_param *param);
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struct net_buf *bt_hci_cmd_create(uint16_t opcode, uint8_t param_len);
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int bt_hci_cmd_send(uint16_t opcode, struct net_buf *buf);
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int bt_hci_cmd_send_sync(uint16_t opcode, struct net_buf *buf,
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struct net_buf **rsp);
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/* The helper is only safe to be called from internal threads as it's
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* not multi-threading safe
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*/
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const char *bt_addr_str(const bt_addr_t *addr);
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const char *bt_addr_le_str(const bt_addr_le_t *addr);
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int bt_le_scan_update(bool fast_scan);
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bool bt_addr_le_is_bonded(const bt_addr_le_t *addr);
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int bt_send(struct net_buf *buf);
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uint16_t bt_hci_get_cmd_opcode(struct net_buf *buf);
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