# Copyright (c) 2025 Joel Guittet
# SPDX-License-Identifier: Apache-2.0

description: Zephyr UART Bitbang driver

compatible: "zephyr,uart-bitbang"

include:
  - name: uart-controller.yaml
    property-blocklist:
      - clock-frequency

properties:
  tx-gpios:
    type: phandle-array
    description: |
      Tx gpio info.

  rx-gpios:
    type: phandle-array
    description: |
      Rx gpio info.

  de-gpios:
    type: phandle-array
    description: |
      RS485 driver enable gpio info.

  tx-timer:
    type: phandle
    description: |
      Reference to a TIMER instance to handle Tx data.
      Tx timer and Rx timer can be the same instance in the case of half-duplex
      communications (no transmission and reception of data at the same time).

  rx-timer:
    type: phandle
    description: |
      Reference to a TIMER instance to handle Rx data.
      Tx timer and Rx timer can be the same instance in the case of half-duplex
      communications (no transmission and reception of data at the same time).

  tx-fifo-size:
    type: int
    default: 64
    description: |
      Size of the Tx ring buffer.

  rx-fifo-size:
    type: int
    default: 64
    description: |
      Size of the Rx ring buffer.

  msb:
    type: boolean
    description: |
      Indicate data are transferred Most Significant Bit (MSB) first.

  hw-rs485-flow-control:
    type: boolean
    description: |
      Set to enable DE (driver enable) signal, which can be used to enable
      the driver of an external RS-485 transceiver. Note hw-flow-control
      should be set to false.