mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_openthread_uart.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/select.h>
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#include "esp_check.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "esp_openthread.h"
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#include "esp_openthread_common_macro.h"
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#include "esp_openthread_platform.h"
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#include "esp_openthread_types.h"
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#include "esp_vfs_dev.h"
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#include "common/logging.hpp"
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#include "driver/uart.h"
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#include "utils/uart.h"
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static int s_uart_port;
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static int s_uart_fd;
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static uint8_t s_uart_buffer[ESP_OPENTHREAD_UART_BUFFER_SIZE];
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static const char *uart_workflow = "uart";
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otError otPlatUartEnable(void)
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{
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return OT_ERROR_NONE;
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}
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otError otPlatUartDisable(void)
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{
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return OT_ERROR_NONE;
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}
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otError otPlatUartFlush(void)
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{
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return OT_ERROR_NONE;
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}
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otError otPlatUartSend(const uint8_t *buf, uint16_t buf_length)
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{
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int rval = write(s_uart_fd, buf, buf_length);
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if (rval != (int)buf_length) {
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return OT_ERROR_FAILED;
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}
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otPlatUartSendDone();
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return OT_ERROR_NONE;
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}
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esp_err_t esp_openthread_uart_init_port(const esp_openthread_uart_config_t *config)
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{
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ESP_RETURN_ON_ERROR(uart_param_config(config->port, &config->uart_config), OT_PLAT_LOG_TAG,
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"uart_param_config failed");
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ESP_RETURN_ON_ERROR(
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uart_set_pin(config->port, config->tx_pin, config->rx_pin, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE),
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OT_PLAT_LOG_TAG, "uart_set_pin failed");
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ESP_RETURN_ON_ERROR(uart_driver_install(config->port, ESP_OPENTHREAD_UART_BUFFER_SIZE, 0, 0, NULL, 0),
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OT_PLAT_LOG_TAG, "uart_driver_install failed");
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esp_vfs_dev_uart_use_driver(config->port);
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return ESP_OK;
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}
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esp_err_t esp_openthread_uart_init(const esp_openthread_platform_config_t *config)
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{
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char uart_path[16];
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esp_err_t ret = ESP_OK;
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// Disable IO buffer.
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setvbuf(stdin, NULL, _IONBF, 0);
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setvbuf(stdout, NULL, _IONBF, 0);
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// Install UART driver for interrupt-driven reads and writes.
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ESP_RETURN_ON_FALSE(config->host_config.host_connection_mode == HOST_CONNECTION_MODE_CLI_UART ||
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config->host_config.host_connection_mode == HOST_CONNECTION_MODE_RCP_UART,
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ESP_FAIL, OT_PLAT_LOG_TAG, "unsupport host connect mode");
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s_uart_port = config->host_config.host_uart_config.port;
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ESP_RETURN_ON_ERROR(esp_openthread_uart_init_port(&config->host_config.host_uart_config), OT_PLAT_LOG_TAG,
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"esp_openthread_uart_init_port failed");
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if (config->host_config.host_connection_mode == HOST_CONNECTION_MODE_RCP_UART) {
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esp_vfs_dev_uart_port_set_rx_line_endings(s_uart_port, ESP_LINE_ENDINGS_LF);
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esp_vfs_dev_uart_port_set_tx_line_endings(s_uart_port, ESP_LINE_ENDINGS_LF);
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snprintf(uart_path, sizeof(uart_path), "/dev/uart/%d", s_uart_port);
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s_uart_fd = open(uart_path, O_RDWR | O_NONBLOCK);
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ESP_RETURN_ON_FALSE(s_uart_fd >= 0, ESP_FAIL, OT_PLAT_LOG_TAG, "open uart_path failed");
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ret = esp_openthread_platform_workflow_register(&esp_openthread_uart_update, &esp_openthread_uart_process,
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uart_workflow);
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}
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return ret;
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}
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void esp_openthread_uart_deinit()
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{
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if (s_uart_fd != -1) {
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close(s_uart_fd);
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s_uart_fd = -1;
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}
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uart_driver_delete(s_uart_port);
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esp_openthread_platform_workflow_unregister(uart_workflow);
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}
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void esp_openthread_uart_update(esp_openthread_mainloop_context_t *mainloop)
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{
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FD_SET(s_uart_fd, &mainloop->read_fds);
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if (s_uart_fd > mainloop->max_fd) {
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mainloop->max_fd = s_uart_fd;
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}
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}
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esp_err_t esp_openthread_uart_process(otInstance *instance, const esp_openthread_mainloop_context_t *mainloop)
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{
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int rval = read(s_uart_fd, s_uart_buffer, sizeof(s_uart_buffer));
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if (rval > 0) {
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otPlatUartReceived(s_uart_buffer, (uint16_t)rval);
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} else if (rval < 0) {
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if (errno != EAGAIN) {
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ESP_LOGW(OT_PLAT_LOG_TAG, "read uart failed: %d", errno);
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return ESP_FAIL;
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}
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}
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return ESP_OK;
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}
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