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# Copyright (c) 2023 Cypress Semiconductor Corporation (an Infineon company) or
# an affiliate of Cypress Semiconductor Corporation
#
# SPDX-License-Identifier: Apache-2.0
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
compatible: "infineon,cyw43xxx-bt-hci"
include: base.yaml
properties:
bt-reg-on-gpios:
description: |
Power-up/down gpio to control the internal regulators used
by the Bluetooth section of CYW43xx device.
type: phandle-array
bt-dev-wake-gpios:
description: |
Bluetooth device wake-up gpio. Signal from the host to the
CYW43xx indicating that the host requires attention.
type: phandle-array
bt-host-wake-gpios:
description: |
Host wake-up gpio. Signal from the CYW43xx to the host
indicating that the CYW43xx requires attention.
type: phandle-array
hci-operation-speed:
type: int
description: |
HCI UART boudrate for feature operation. If not defined
bus/current-speed will be used as default.
fw-download-speed:
type: int
description: |
HCI UART boudrate for FW download operation. If not defined
bus/current-speed will be used as default.