refactor(uart_vfs): Move uart implementation of vfs to esp_driver_uart

Deprecated esp_vfs_dev_uart_xxx APIs
vfs_uart test case moved to esp_driver_uart test_apps
Astyle fixed for uart_vfs

components/esp_driver_uart/include/driver/uart_vfs.h

@@ -0,0 +1,84 @@
+/*
+ * SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "esp_vfs_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Add /dev/uart virtual filesystem driver
+ *
+ * This function is called from startup code to enable serial output
+ */
+void uart_vfs_dev_register(void);
+
+/**
+ * @brief Set the line endings expected to be received on specified UART
+ *
+ * This specifies the conversion between line endings received on UART and
+ * newlines ('\n', LF) passed into stdin:
+ *
+ * - ESP_LINE_ENDINGS_CRLF: convert CRLF to LF
+ * - ESP_LINE_ENDINGS_CR: convert CR to LF
+ * - ESP_LINE_ENDINGS_LF: no modification
+ *
+ * @note this function is not thread safe w.r.t. reading from UART
+ *
+ * @param uart_num the UART number
+ * @param mode line endings to send to UART
+ *
+ * @return  0 if successed, or -1
+ *              when an error (specified by errno) have occurred.
+ */
+int uart_vfs_dev_port_set_rx_line_endings(int uart_num, esp_line_endings_t mode);
+
+/**
+ * @brief Set the line endings to sent to specified UART
+ *
+ * This specifies the conversion between newlines ('\n', LF) on stdout and line
+ * endings sent over UART:
+ *
+ * - ESP_LINE_ENDINGS_CRLF: convert LF to CRLF
+ * - ESP_LINE_ENDINGS_CR: convert LF to CR
+ * - ESP_LINE_ENDINGS_LF: no modification
+ *
+ * @note this function is not thread safe w.r.t. writing to UART
+ *
+ * @param uart_num the UART number
+ * @param mode line endings to send to UART
+ *
+ * @return  0 if successed, or -1
+ *              when an error (specified by errno) have occurred.
+ */
+int uart_vfs_dev_port_set_tx_line_endings(int uart_num, esp_line_endings_t mode);
+
+/**
+ * @brief set VFS to use simple functions for reading and writing UART
+ *
+ * Read is non-blocking, write is busy waiting until TX FIFO has enough space.
+ * These functions are used by default.
+ *
+ * @param uart_num UART peripheral number
+ */
+void uart_vfs_dev_use_nonblocking(int uart_num);
+
+/**
+ * @brief set VFS to use UART driver for reading and writing
+ *
+ * @note Application must configure UART driver before calling these functions
+ * With these functions, read and write are blocking and interrupt-driven.
+ *
+ * @param uart_num UART peripheral number
+ */
+void uart_vfs_dev_use_driver(int uart_num);
+
+#ifdef __cplusplus
+}
+#endif