Serial Bridge.

#include <asf.h>
#include "common/include/nm_common.h"
#include "bus_wrapper/include/nm_bus_wrapper.h"
#include "driver/source/nmbus.h"
#include "driver/include/m2m_wifi.h"
#include "usart_stream.h"
#include <string.h>

Data Structures
struct	uart_cmd_hdr

struct	usart_frame

Macros
#define	HANDLER_SIZE sizeof(usart_handler) / sizeof(struct usart_frame)

#define	MIN(x, y) (x > y) ? y : x

Enumerations
enum	cmd_err_code { CMD_ERR_NO_ERROR = 0, CMD_ERR_INTERNAL_ERROR, CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR = 0, CMD_ERR_INTERNAL_ERROR, CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR = 0, CMD_ERR_INTERNAL_ERROR, CMD_ERR_INVALID_FRAME }

Functions
static void	buffer_to_cmd_hdr (uint8_t buffer, struct uart_cmd_hdr cmd_hdr)

static uint8_t	checksum_check (uint8_t *buffer, uint8_t size)

static sint8	enter_wifi_firmware_download (void)
	Process input UART command and forward to SPI. More...

int	main (void)
	Main application function. More...

static void	usart_frame_parse (uint8_t *buffer, uint8_t size)
	Parse incoming frame and find the handler to process the request. More...

static int	usart_read_block_handler (uint8_t *buffer, uint8_t size)

static int	usart_read_reg_with_ret_handler (uint8_t *buffer, uint8_t size)

static int	usart_reconfigure_handler (uint8_t *buffer, uint8_t size)

static int	usart_sync_cmd_handler (uint8_t *buffer, uint8_t size)

static int	usart_write_block_handler (uint8_t *buffer, uint8_t size)

static int	usart_write_reg_handler (uint8_t *buffer, uint8_t size)

Variables
struct usart_frame	usart_handler []

#define HANDLER_SIZE sizeof(usart_handler) / sizeof(struct usart_frame)

Referenced by usart_frame_parse().

#define MIN	(	x,
		y
	)	(x > y) ? y : x

enum cmd_err_code

Enumerator
CMD_ERR_NO_ERROR
CMD_ERR_INTERNAL_ERROR
CMD_ERR_INVALID_FRAME
CMD_ERR_NO_ERROR
CMD_ERR_INTERNAL_ERROR
CMD_ERR_INVALID_FRAME
CMD_ERR_NO_ERROR
CMD_ERR_INTERNAL_ERROR
CMD_ERR_INVALID_FRAME

static void buffer_to_cmd_hdr	(	uint8_t *	buffer,
		struct uart_cmd_hdr *	cmd_hdr
	)

static

References uart_cmd_hdr::addr, uart_cmd_hdr::cmd, and uart_cmd_hdr::val.

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

static uint8_t checksum_check	(	uint8_t *	buffer,
		uint8_t	size
	)

static

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

static sint8 enter_wifi_firmware_download ( void )

static

Process input UART command and forward to SPI.

References M2M_ERR_INIT, M2M_SUCCESS, m2m_wifi_download_mode(), usart_frame_parse(), usart_stream_read(), and usart_stream_reset().

Referenced by main().

int main ( void )

Main application function.

Application entry point.

Returns: program return value.

References board_init(), configure_usart(), enter_wifi_firmware_download(), nm_bsp_init(), and sysclk_init().

static void usart_frame_parse	(	uint8_t *	buffer,
		uint8_t	size
	)

static

Parse incoming frame and find the handler to process the request.

References HANDLER_SIZE, usart_stream_reset(), and usart_stream_write().

Referenced by enter_wifi_firmware_download().

static int usart_read_block_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References uart_cmd_hdr::addr, buffer_to_cmd_hdr(), checksum_check(), uart_cmd_hdr::cmd, CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR, nm_read_block(), USART_BUFFER_MAX, usart_stream_move(), usart_stream_write(), and usart_stream_write_buffer().

static int usart_read_reg_with_ret_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References uart_cmd_hdr::addr, buffer_to_cmd_hdr(), checksum_check(), CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR, nm_read_reg(), usart_stream_move(), usart_stream_write(), and uart_cmd_hdr::val.

static int usart_reconfigure_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References buffer_to_cmd_hdr(), checksum_check(), CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR, configure_usart(), usart_stream_move(), usart_stream_write(), and uart_cmd_hdr::val.

static int usart_sync_cmd_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References CMD_ERR_NO_ERROR, usart_stream_move(), and usart_stream_write().

static int usart_write_block_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References uart_cmd_hdr::addr, buffer_to_cmd_hdr(), checksum_check(), uart_cmd_hdr::cmd, CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR, nm_write_block(), read_buffer, usart_stream_move(), usart_stream_read(), and usart_stream_write().

static int usart_write_reg_handler	(	uint8_t *	buffer,
		uint8_t	size
	)

static

References uart_cmd_hdr::addr, buffer_to_cmd_hdr(), checksum_check(), CMD_ERR_INVALID_FRAME, CMD_ERR_NO_ERROR, nm_write_reg(), usart_stream_move(), usart_stream_write(), and uart_cmd_hdr::val.

struct usart_frame usart_handler[]

Initial value:

= {
    {{0x12, 0}, 1, 1, usart_sync_cmd_handler}, 
    {{0xa5, 0x00, 0}, 2, sizeof(struct uart_cmd_hdr) + 1, usart_read_reg_with_ret_handler}, 
    {{0xa5, 0x01, 0}, 2, sizeof(struct uart_cmd_hdr) + 1, usart_write_reg_handler}, 
    {{0xa5, 0x02, 0}, 2, sizeof(struct uart_cmd_hdr) + 1, usart_read_block_handler}, 
    {{0xa5, 0x03, 0}, 2, sizeof(struct uart_cmd_hdr) + 1, usart_write_block_handler}, 
    {{0xa5, 0x04, 0}, 2, 2, NULL}, 
    {{0xa5, 0x05, 0}, 2, sizeof(struct uart_cmd_hdr) + 1, usart_reconfigure_handler}, 
    {{0xa5, 0x0A, 0}, 2, 2, NULL}, 
}

Referenced by ISR().

Microchip® Advanced Software Framework

Data Structures

Macros

Enumerations

Functions

Variables