/* * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #pragma once #include #include "esp_err.h" #include "driver/spi_master.h" #include "led_strip_types.h" #ifdef __cplusplus extern "C" { #endif /** * @brief LED Strip SPI specific configuration */ typedef struct { spi_clock_source_t clk_src; /*!< SPI clock source */ spi_host_device_t spi_bus; /*!< SPI bus ID. Which buses are available depends on the specific chip */ struct { uint32_t with_dma: 1; /*!< Use DMA to transmit data */ } flags; /*!< Extra driver flags */ } led_strip_spi_config_t; /** * @brief Create LED strip based on SPI MOSI channel * @note Although only the MOSI line is used for generating the signal, the whole SPI bus can't be used for other purposes. * * @param led_config LED strip configuration * @param spi_config SPI specific configuration * @param ret_strip Returned LED strip handle * @return * - ESP_OK: create LED strip handle successfully * - ESP_ERR_INVALID_ARG: create LED strip handle failed because of invalid argument * - ESP_ERR_NOT_SUPPORTED: create LED strip handle failed because of unsupported configuration * - ESP_ERR_NO_MEM: create LED strip handle failed because of out of memory * - ESP_FAIL: create LED strip handle failed because some other error */ esp_err_t led_strip_new_spi_device(const led_strip_config_t *led_config, const led_strip_spi_config_t *spi_config, led_strip_handle_t *ret_strip); #ifdef __cplusplus } #endif