# SPDX-License-Identifier: MIT

description: |
  RockBLOCK 9704, Ground Control's Iridium Certus (IMT) modem board, on a
  UART. The modem speaks JSPR, JSON lines over a fixed 230400 8N1; there is
  no AT mode. One per system: the library underneath keeps global state.

  The control pins are optional. With none, the modem is assumed powered and
  enabled, which is how the board behaves with the pins left open.

compatible: "rock7,rockblock-9704"

include:
  - uart-device.yaml

properties:
  power-gpios:
    type: phandle-array
    description: |
      P_EN, the supply enable. Driven active to power the board.

  iridium-enable-gpios:
    type: phandle-array
    description: |
      I_EN, the modem enable. Driven active once the supply is up.

  booted-gpios:
    type: phandle-array
    description: |
      I_BTD, the modem's booted signal. When present, power-up waits for it
      instead of a fixed delay.

  boot-delay-ms:
    type: int
    default: 4000
    description: |
      How long to wait after enabling the modem before talking to it, when
      there is no booted-gpios to wait on.

examples:
  - |
    &usart3 {
            current-speed = <230400>;
            status = "okay";

            modem: rockblock {
                    compatible = "rock7,rockblock-9704";
                    power-gpios = <&gpiob 0 GPIO_ACTIVE_HIGH>;
                    iridium-enable-gpios = <&gpiob 1 GPIO_ACTIVE_HIGH>;
                    booted-gpios = <&gpiob 2 GPIO_ACTIVE_HIGH>;
            };
    };