infineon,cyw43xxx-bt-hci

Vendor: Infineon Technologies

Note

An implementation of a driver matching this compatible is available in drivers/bluetooth/hci/h4_ifx_cyw43xxx.c.

Description

CYW43xxx Connectivity that uses Zephyr's Bluetooth Host Controller Interface UART
driver.

Example of enabling CYW43xxx device:

  &uart2 {
    status = "okay";
    current-speed = <115200>;

    /* HCI-UART pins*/
    pinctrl-0 = <&p3_1_scb2_uart_tx &p3_0_scb2_uart_rx
                 &p3_2_scb2_uart_rts &p3_3_scb2_uart_cts>;
    pinctrl-names = "default";

    /* HW Flow control must be enabled for HCI H4 */
    hw-flow-control;

    bt-hci {
      status = "okay";
      compatible = "infineon,cyw43xxx-bt-hci";
      bt-reg-on-gpios = <&gpio_prt3 4 (GPIO_ACTIVE_HIGH)>;

      fw-download-speed = <3000000>;
    };
  };

NOTE1: The UART bus speed (current_speed) for zephyr_bt_uart should be the same
       as the default baudrate defined in CYW43xx firmware (default 115200).

NOTE2: Use fw-download-speed and hci-operation-speed properties to configure UART
       speeds for firmware download (fw-download-speed) and HCI operation
       (hci-operation-speed).
       If hci-operation-speed or fw-download-speed are not defined in bt-hci node,
       cyw43xx driver will use bus/current-speed as default speed.

NOTE3: CYW43xxx requires fetch binary files of BT controller. To fetch binary blobs:
       west blobs fetch hal_infineon

Properties

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

bt-reg-on-gpios

phandle-array

 
Power-up/down gpio to control the internal regulators used
by the Bluetooth section of CYW43xx device.

bt-dev-wake-gpios

phandle-array

 
Bluetooth device wake-up gpio. Signal from the host to the
CYW43xx indicating that the host requires attention.

bt-host-wake-gpios

phandle-array

 
Host wake-up gpio. Signal from the CYW43xx to the host
indicating that the CYW43xx requires attention.

hci-operation-speed

int

 
HCI UART boudrate for feature operation. If not defined
bus/current-speed will be used as default.

fw-download-speed

int

 
HCI UART boudrate for FW download operation. If not defined
bus/current-speed will be used as default.

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “infineon,cyw43xxx-bt-hci” compatible.

Name

Type

Details

status

string

 
indicates the operational status of a device

Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss'

See Important properties for more information.

compatible

string-array

 
compatible strings

This property is required.

See Important properties for more information.

reg

array

 
register space

See Important properties for more information.

reg-names

string-array

 
name of each register space

interrupts

array

 
interrupts for device

See Important properties for more information.

interrupts-extended

compound

 
extended interrupt specifier for device

interrupt-names

string-array

 
name of each interrupt

interrupt-parent

phandle

 
phandle to interrupt controller node

label

string

 
Human readable string describing the device (used as device_get_binding() argument)

See Important properties for more information.

This property is deprecated.

clocks

phandle-array

 
Clock gate information

clock-names

string-array

 
name of each clock

#address-cells

int

 
number of address cells in reg property

#size-cells

int

 
number of size cells in reg property

dmas

phandle-array

 
DMA channels specifiers

dma-names

string-array

 
Provided names of DMA channel specifiers

io-channels

phandle-array

 
IO channels specifiers

io-channel-names

string-array

 
Provided names of IO channel specifiers

mboxes

phandle-array

 
mailbox / IPM channels specifiers

mbox-names

string-array

 
Provided names of mailbox / IPM channel specifiers

power-domains

phandle-array

 
Power domain specifiers

power-domain-names

string-array

 
Provided names of power domain specifiers

#power-domain-cells

int

 
Number of cells in power-domains property

zephyr,deferred-init

boolean

 
Do not initialize device automatically on boot. Device should be manually
initialized using device_init().

wakeup-source

boolean

 
Property to identify that a device can be used as wake up source.

When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.

Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.

zephyr,pm-device-runtime-auto

boolean

 
Automatically configure the device for runtime power management after the
init function runs.

zephyr,disabling-power-states

phandles

 
List of power states that will disable this device power.