Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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HCI drivers. More...
Data Structures | |
struct | bt_hci_setup_params |
struct | bt_hci_driver |
Abstraction which represents the HCI transport to the controller. More... | |
Enumerations | |
enum | { BT_QUIRK_NO_RESET = BIT(0) , BT_QUIRK_NO_AUTO_DLE = BIT(1) } |
enum | bt_hci_driver_bus { BT_HCI_DRIVER_BUS_VIRTUAL = 0 , BT_HCI_DRIVER_BUS_USB = 1 , BT_HCI_DRIVER_BUS_PCCARD = 2 , BT_HCI_DRIVER_BUS_UART = 3 , BT_HCI_DRIVER_BUS_RS232 = 4 , BT_HCI_DRIVER_BUS_PCI = 5 , BT_HCI_DRIVER_BUS_SDIO = 6 , BT_HCI_DRIVER_BUS_SPI = 7 , BT_HCI_DRIVER_BUS_I2C = 8 , BT_HCI_DRIVER_BUS_IPM = 9 } |
Possible values for the 'bus' member of the bt_hci_driver struct. More... | |
Functions | |
int | bt_recv (struct net_buf *buf) |
Receive data from the controller/HCI driver. | |
int | bt_hci_driver_register (const struct bt_hci_driver *drv) |
Register a new HCI driver to the Bluetooth stack. | |
int | bt_hci_transport_setup (const struct device *dev) |
Setup the HCI transport, which usually means to reset the Bluetooth IC. | |
int | bt_hci_transport_teardown (const struct device *dev) |
Teardown the HCI transport. | |
struct net_buf * | bt_hci_evt_create (uint8_t evt, uint8_t len) |
Allocate an HCI event buffer. | |
struct net_buf * | bt_hci_cmd_complete_create (uint16_t op, uint8_t plen) |
Allocate an HCI Command Complete event buffer. | |
struct net_buf * | bt_hci_cmd_status_create (uint16_t op, uint8_t status) |
Allocate an HCI Command Status event buffer. | |
HCI drivers.
anonymous enum |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Enumerator | |
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BT_QUIRK_NO_RESET | |
BT_QUIRK_NO_AUTO_DLE |
enum bt_hci_driver_bus |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Possible values for the 'bus' member of the bt_hci_driver struct.
#include <zephyr/drivers/bluetooth/hci_driver.h>
Allocate an HCI Command Complete event buffer.
This function allocates a new buffer for HCI Command Complete event. It is given the OpCode (encoded e.g. using the BT_OP macro) and the total length of the parameters. Upon successful return the buffer is ready to have the parameters encoded into it.
op | Command OpCode. |
plen | Length of command parameters. |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Allocate an HCI Command Status event buffer.
This function allocates a new buffer for HCI Command Status event. It is given the OpCode (encoded e.g. using the BT_OP macro) and the status code. Upon successful return the buffer is ready to have the parameters encoded into it.
op | Command OpCode. |
status | Status code. |
int bt_hci_driver_register | ( | const struct bt_hci_driver * | drv | ) |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Register a new HCI driver to the Bluetooth stack.
This needs to be called before any application code runs. The bt_enable() API will fail if there is no driver registered.
drv | A bt_hci_driver struct representing the driver. |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Allocate an HCI event buffer.
This function allocates a new buffer for an HCI event. It is given the event code and the total length of the parameters. Upon successful return the buffer is ready to have the parameters encoded into it.
evt | Event OpCode. |
len | Length of event parameters. |
int bt_hci_transport_setup | ( | const struct device * | dev | ) |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Setup the HCI transport, which usually means to reset the Bluetooth IC.
dev | The device structure for the bus connecting to the IC |
int bt_hci_transport_teardown | ( | const struct device * | dev | ) |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Teardown the HCI transport.
dev | The device structure for the bus connecting to the IC |
int bt_recv | ( | struct net_buf * | buf | ) |
#include <zephyr/drivers/bluetooth/hci_driver.h>
Receive data from the controller/HCI driver.
This is the main function through which the HCI driver provides the host with data from the controller. The buffer needs to have its type set with the help of bt_buf_set_type() before calling this API.
buf | Network buffer containing data from the controller. |