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vfs: support vfs uart set line endings with specified uart number (release/v4.0)

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houwenxiang
2020-06-09 17:00:47 +08:00
committed by kooho
parent 0dc46879c5
commit d9660fcf9c
14 changed files with 81 additions and 23 deletions
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38
components/vfs/include/esp_vfs_dev.h
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@@ -68,6 +68,44 @@ void esp_vfs_dev_uart_set_rx_line_endings(esp_line_endings_t mode);
*/
void esp_vfs_dev_uart_set_tx_line_endings(esp_line_endings_t mode);
/**
* @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 esp_vfs_dev_uart_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 esp_vfs_dev_uart_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.