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
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
|
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Power-up/down gpio to control the internal regulators used
by the Bluetooth section of CYW43xx device.
|
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Bluetooth device wake-up gpio. Signal from the host to the
CYW43xx indicating that the host requires attention.
|
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Host wake-up gpio. Signal from the CYW43xx to the host
indicating that the CYW43xx requires attention.
|
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HCI UART boudrate for feature operation. If not defined
bus/current-speed will be used as default.
|
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HCI UART boudrate for FW download operation. If not defined
bus/current-speed will be used as default.
|
Deprecated properties not inherited from the base binding file.
(None)
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 |
|---|---|---|
|
|
indicates the operational status of a device
Legal values: See Important properties for more information. |
|
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compatible strings
This property is required. See Important properties for more information. |
|
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register space
See Important properties for more information. |
|
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name of each register space
|
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interrupts for device
See Important properties for more information. |
|
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extended interrupt specifier for device
|
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name of each interrupt
|
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phandle to interrupt controller node
|
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
|
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name of each clock
|
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number of address cells in reg property
|
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number of size cells in reg property
|
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DMA channels specifiers
|
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Provided names of DMA channel specifiers
|
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IO channels specifiers
|
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Provided names of IO channel specifiers
|
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mailbox / IPM channels specifiers
|
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Provided names of mailbox / IPM channel specifiers
|
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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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.
|
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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