/* * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ /** * @brief * This file contains SPI Slave private/internal APIs. Private/Internal APIs are: * - Visible to other IDF components * - Suggest NOT to use these APIs in your applications * - We don't provide backward compatibility on these APIs either */ #pragma once #include "sdkconfig.h" #include "esp_err.h" #include "hal/spi_types.h" #ifdef __cplusplus extern "C" { #endif /** * @note * This API is used to reset SPI Slave transaction queue. After calling this function: * - The SPI Slave transaction queue will be reset. * * @note This API shouldn't be called when the corresponding SPI Master is doing an SPI transaction. * If this gets called when its corresponding SPI Master is doing an SPI transaction, the SPI Slave behaviour is undefined * * @param host SPI peripheral that is acting as a slave * * @return * - ESP_ERR_INVALID_ARG if parameter is invalid * - ESP_OK on success */ esp_err_t spi_slave_queue_reset(spi_host_device_t host);