| /* |
| * Copyright (c) 2021 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /* |
| * This file contains helper macros for dealing with the devicetree |
| * radio node's fem property, in the case that it has compatible |
| * "nordic,nrf21540-fem". |
| * |
| * Do not include it directly. |
| * |
| * For nRF21540 devices: |
| * |
| * Value Property |
| * --------- -------- |
| * PA pin tx-en-gpios |
| * PA offset tx-en-settle-time-us |
| * LNA pin rx-en-gpios |
| * LNA offset rx-en-settle-time-us |
| * PDN pin pdn-gpios |
| * PDN offset pdn-settle-time-us |
| * |
| * The spi-if property may point at a SPI device node representing the |
| * FEM's SPI control interface. See the binding for details. |
| */ |
| |
| #define HAL_RADIO_FEM_IS_NRF21540 1 |
| |
| #define HAL_RADIO_GPIO_PA_PROP_NAME "tx-en-gpios" |
| #define HAL_RADIO_GPIO_PA_OFFSET_PROP_NAME "tx-en-settle-time-us" |
| #define HAL_RADIO_GPIO_LNA_PROP_NAME "rx-en-gpios" |
| #define HAL_RADIO_GPIO_LNA_OFFSET_PROP_NAME "rx-en-settle-time-us" |
| |
| /* This FEM's PA and LNA offset properties have defaults set. */ |
| #define HAL_RADIO_GPIO_PA_OFFSET_MISSING 0 |
| #define HAL_RADIO_GPIO_LNA_OFFSET_MISSING 0 |
| |
| #if FEM_HAS_PROP(tx_en_gpios) |
| #define HAL_RADIO_GPIO_HAVE_PA_PIN 1 |
| #define HAL_RADIO_GPIO_PA_PROP tx_en_gpios |
| #define HAL_RADIO_GPIO_PA_OFFSET DT_PROP(FEM_NODE, tx_en_settle_time_us) |
| #endif /* FEM_HAS_PROP(tx_en_gpios) */ |
| |
| #if FEM_HAS_PROP(rx_en_gpios) |
| #define HAL_RADIO_GPIO_HAVE_LNA_PIN 1 |
| #define HAL_RADIO_GPIO_LNA_PROP rx_en_gpios |
| #define HAL_RADIO_GPIO_LNA_OFFSET DT_PROP(FEM_NODE, rx_en_settle_time_us) |
| #endif /* FEM_HAS_PROP(rx_en_gpios) */ |
| |
| /* |
| * The POL_INV macros defined below are just to keep things simple in |
| * radio_nrf5_dppi.h, which uses them. |
| */ |
| |
| #if FEM_HAS_PROP(pdn_gpios) |
| #if DT_GPIO_FLAGS(FEM_NODE, pdn_gpios) & GPIO_ACTIVE_LOW |
| #define HAL_RADIO_GPIO_NRF21540_PDN_POL_INV 1 |
| #endif /* DT_GPIO_FLAGS(FEM_NODE, pdn_gpios) & GPIO_ACTIVE_LOW */ |
| #endif /* FEM_HAS_PROP(pdn_gpios) */ |
| |
| #if FEM_HAS_PROP(spi_if) |
| /* This is the "SPI device" node, i.e. the one with compatible |
| * nordic,nrf21540-fem-spi. |
| */ |
| #define FEM_SPI_DEV_NODE DT_PHANDLE(FEM_NODE, spi_if) |
| /* If the SPI device node has a chip select gpio... */ |
| #if DT_SPI_DEV_HAS_CS_GPIOS(FEM_SPI_DEV_NODE) |
| /* set a macro indicating that, and... */ |
| #define HAL_RADIO_FEM_NRF21540_HAS_CSN 1 |
| /* use it to get the CSN polarity. */ |
| #if DT_SPI_DEV_CS_GPIOS_FLAGS(FEM_SPI_DEV_NODE) & GPIO_ACTIVE_LOW |
| #define HAL_RADIO_GPIO_NRF21540_CSN_POL_INV 1 |
| #endif /* DT_SPI_DEV_CS_GPIOS_FLAGS(FEM_SPI_DEV_NODE) & GPIO_ACTIVE_LOW */ |
| #endif /* DT_SPI_DEV_HAS_CS_GPIOS(FEM_SPI_DEV_NODE) */ |
| #endif /* FEM_HAS_PROP(spi_if) */ |
