usart_stream.c File Reference

Serial Bridge.

Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.

#include "usart_stream.h"
#include <string.h>

Functions
void	configure_usart (uint32_t baudrate)
	Initialize USART module. More...
void	usart_stream_move (uint32_t offset)
	Move back USART buffer. More...
int	usart_stream_read (uint8_t **data, uint32_t *size)
	Read data from USART module. More...
void	usart_stream_reset (void)
	Clear USART buffer and flush USART module. More...
void	usart_stream_write (uint8_t data)
	Write one byte of data. More...
void	usart_stream_write_buffer (uint8_t *data, uint32_t size)
	Write multiple bytes of data. More...

Variables
static uint8_t	usart_buffer [USART_BUFFER_MAX]
static uint32_t	usart_recv_size = 0

void configure_usart

(

uint32_t

baud_rate

)

Initialize USART module.

Parameters

baud_rate

Baudrate of USART.

void usart_stream_move

(

uint32_t

offset

)

Move back USART buffer.

Parameters

offset

Size of data to remove.

Referenced by usart_read_block_handler(), usart_read_reg_with_ret_handler(), usart_reconfigure_handler(), usart_sync_cmd_handler(), usart_write_block_handler(), and usart_write_reg_handler().

int usart_stream_read	(	uint8_t **	data,
		uint32_t *	size
	)

Read data from USART module.

Parameters

data	Pointer to USART buffer.
data	Pointer to USART buffer size.

Referenced by enter_wifi_firmware_download(), serial_bridge(), and usart_write_block_handler().

void usart_stream_reset

(

void

)

Clear USART buffer and flush USART module.

Referenced by bt_hci_reset_handler(), bt_hci_start_rx_handler(), bt_hci_start_tx_handler(), bt_hci_stop_txrx_handler(), configure_usart(), enter_wifi_firmware_download(), serial_bridge(), and usart_frame_parse().

void usart_stream_write

(

uint8_t

data

)

Write one byte of data.

Parameters

data	Data to send.

Referenced by usart_frame_parse(), usart_read_block_handler(), usart_read_reg_with_ret_handler(), usart_reconfigure_handler(), usart_sync_cmd_handler(), usart_write_block_handler(), and usart_write_reg_handler().

void usart_stream_write_buffer	(	uint8_t *	data,
		uint32_t	size
	)

Write multiple bytes of data.

Parameters

data	Pointer to data to send.
size	Size of data.

Referenced by USART1_Handler(), usart_read_block_handler(), usart_read_reg_with_ret_handler(), usart_write_block_handler(), and usart_write_reg_handler().

uint8_t usart_buffer[USART_BUFFER_MAX]

static

Referenced by usart_stream_move(), and usart_stream_read().

uint32_t usart_recv_size = 0

static

Referenced by usart_stream_move(), usart_stream_read(), and usart_stream_reset().