serial_bridge_ultra.c File Reference

Serial Bridge.

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

#include <asf.h>
#include "common/include/nm_common.h"
#include "bsp/include/nm_bsp.h"
#include "bus_wrapper/include/nm_bus_wrapper.h"
#include "driver/source/nmbus.h"
#include "driver/include/m2m_wifi.h"
#include "stdio_serial.h"

Data Structures
struct	uart_cmd_hdr_t

Macros
#define	CONF_STDIO_BAUDRATE   115200
#define	CONF_STDIO_MUX_SETTING   EDBG_CDC_SERCOM_MUX_SETTING
#define	CONF_STDIO_PINMUX_PAD0   EDBG_CDC_SERCOM_PINMUX_PAD0
#define	CONF_STDIO_PINMUX_PAD1   EDBG_CDC_SERCOM_PINMUX_PAD1
#define	CONF_STDIO_PINMUX_PAD2   EDBG_CDC_SERCOM_PINMUX_PAD2
#define	CONF_STDIO_PINMUX_PAD3   EDBG_CDC_SERCOM_PINMUX_PAD3
#define	CONF_STDIO_USART_MODULE   EDBG_CDC_MODULE
#define	READ_BUFF   2
#define	READ_REG   0
#define	RECONFIGURE_UART   5
#define	RESET   4
#define	SPI_TRANSFER_SIZE   512
#define	USART_CMD_HDR_LENGTH   sizeof(uart_cmd_hdr)
#define	WRITE_BUFF   3
#define	WRITE_REG   1

Typedefs
typedef struct uart_cmd_hdr_t	uart_cmd_hdr

Enumerations
enum	nm_usart_cmd_process_states {   INIT = 0,   WAIT_SYNC,   WAITING,   COLLECTING_HDR,   COLLECTING_PAYLOAD,   PROCESSING }
enum	nm_usart_event_types {   USART_PKT_RECEIVED = 0,   USART_PKT_TRANSMITTED,   USART_ERROR_ON_RECEPTION }
	UART commands. More...

Functions
static void	configure_console (uint32_t baud)
	Configure UART console. More...
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	nm_usart_protocol_handler (struct usart_module *module, enum nm_usart_event_types event_name)
static void	nm_usart_send_regval (struct usart_module *module, uint8_t *tx_data, uint16_t length)
static void	usart_rx_complete_handler (struct usart_module *const module)
static void	usart_tx_complete_handler (struct usart_module *const module)

Variables
static struct usart_module	cdc_uart_module
static uint8_t	change_state = 0
static uint8_t	new_state = INIT
static uint8_t	schedule_rx = 0
static uint16_t *	schedule_rx_buffer = NULL
static uint16_t	schedule_rx_length = 0
static uint8_t	serial_command_pending = 0
static uart_cmd_hdr	uart_cmd
static uint8 *	uart_cmd_buf
static uint8_t	uart_reconfigure = 0
static uint16_t	usart_cmd_recv_buffer [8]
static uint8_t	usart_err_on_reception = 0
static uint16_t	usart_payload_buffer [512]
static uint8_t *	usart_pkt = NULL
static uint8_t	usart_pkt_received = 0
static uint8_t	usart_prot_handler_status = INIT
static uint8_t	usart_tx_buffer [16]

#define CONF_STDIO_BAUDRATE   115200

Referenced by main().

#define CONF_STDIO_MUX_SETTING   EDBG_CDC_SERCOM_MUX_SETTING

Referenced by configure_console().

#define CONF_STDIO_PINMUX_PAD0   EDBG_CDC_SERCOM_PINMUX_PAD0

Referenced by configure_console().

#define CONF_STDIO_PINMUX_PAD1   EDBG_CDC_SERCOM_PINMUX_PAD1

Referenced by configure_console().

#define CONF_STDIO_PINMUX_PAD2   EDBG_CDC_SERCOM_PINMUX_PAD2

Referenced by configure_console().

#define CONF_STDIO_PINMUX_PAD3   EDBG_CDC_SERCOM_PINMUX_PAD3

Referenced by configure_console().

#define CONF_STDIO_USART_MODULE   EDBG_CDC_MODULE

Referenced by configure_console().

#define READ_BUFF   2

Referenced by enter_wifi_firmware_download().

#define READ_REG   0

Referenced by enter_wifi_firmware_download().

#define RECONFIGURE_UART   5

Referenced by enter_wifi_firmware_download().

#define RESET   4

#define SPI_TRANSFER_SIZE   512

#define USART_CMD_HDR_LENGTH   sizeof(uart_cmd_hdr)

Referenced by nm_usart_protocol_handler().

#define WRITE_BUFF   3

Referenced by enter_wifi_firmware_download(), and nm_usart_protocol_handler().

#define WRITE_REG   1

Referenced by enter_wifi_firmware_download(), and nm_usart_protocol_handler().

typedef struct uart_cmd_hdr_t uart_cmd_hdr

enum nm_usart_cmd_process_states

Enumerator
INIT
WAIT_SYNC
WAITING
COLLECTING_HDR
COLLECTING_PAYLOAD
PROCESSING

enum nm_usart_event_types

UART commands.

Enumerator
USART_PKT_RECEIVED
USART_PKT_TRANSMITTED
USART_ERROR_ON_RECEPTION

static void configure_console ( uint32_t  baud )

static

Configure UART console.

Parameters

baud	UART baudrate to use.

References usart_config::baudrate, cdc_uart_module, CONF_STDIO_MUX_SETTING, CONF_STDIO_PINMUX_PAD0, CONF_STDIO_PINMUX_PAD1, CONF_STDIO_PINMUX_PAD2, CONF_STDIO_PINMUX_PAD3, CONF_STDIO_USART_MODULE, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, schedule_rx_length, USART_CALLBACK_BUFFER_RECEIVED, USART_CALLBACK_BUFFER_TRANSMITTED, usart_cmd_recv_buffer, usart_enable(), usart_enable_callback(), usart_get_config_defaults(), usart_read_job(), usart_register_callback(), usart_rx_complete_handler(), and usart_tx_complete_handler().

Referenced by enter_wifi_firmware_download(), and main().

static sint8 enter_wifi_firmware_download ( void  )

static

Process input UART command and forward to SPI.

References uart_cmd_hdr_t::addr, cdc_uart_module, uart_cmd_hdr_t::cmd, configure_console(), M2M_ERR_INIT, M2M_SUCCESS, m2m_wifi_download_mode(), nm_read_block(), nm_read_reg(), nm_usart_protocol_handler(), nm_usart_send_regval(), nm_write_block(), nm_write_reg(), PROCESSING, READ_BUFF, READ_REG, RECONFIGURE_UART, schedule_rx, schedule_rx_buffer, schedule_rx_length, serial_command_pending, uart_reconfigure, usart_cmd_recv_buffer, usart_disable(), usart_err_on_reception, USART_ERROR_ON_RECEPTION, usart_payload_buffer, USART_PKT_RECEIVED, usart_pkt_received, usart_prot_handler_status, usart_tx_buffer, usart_write_buffer_job(), usart_write_job(), uart_cmd_hdr_t::val, WAIT_SYNC, WRITE_BUFF, and WRITE_REG.

Referenced by main().

int main

(

void

)

Main application function.

Application entry point.

Returns

program return value.

References CONF_STDIO_BAUDRATE, configure_console(), enter_wifi_firmware_download(), nm_bsp_init(), and system_init().

static void nm_usart_protocol_handler ( struct usart_module *  module, enum nm_usart_event_types  event_name  )

static

References change_state, uart_cmd_hdr_t::cmd, COLLECTING_HDR, COLLECTING_PAYLOAD, INIT, new_state, PROCESSING, schedule_rx, schedule_rx_buffer, schedule_rx_length, serial_command_pending, uart_cmd_buf, uart_reconfigure, USART_CMD_HDR_LENGTH, usart_cmd_recv_buffer, USART_ERROR_ON_RECEPTION, usart_payload_buffer, usart_pkt, USART_PKT_RECEIVED, usart_prot_handler_status, usart_read_buffer_job(), usart_read_job(), usart_write_job(), WAIT_SYNC, WAITING, WRITE_BUFF, and WRITE_REG.

Referenced by enter_wifi_firmware_download().

static void nm_usart_send_regval ( struct usart_module *  module, uint8_t *  tx_data, uint16_t  length  )

static

References usart_write_buffer_job().

Referenced by enter_wifi_firmware_download().

static void usart_rx_complete_handler ( struct usart_module *const  module )

static

References change_state, new_state, schedule_rx_length, usart_pkt, usart_pkt_received, and usart_prot_handler_status.

Referenced by configure_console().

static void usart_tx_complete_handler ( struct usart_module *const  module )

static

References change_state, new_state, schedule_rx, schedule_rx_buffer, schedule_rx_length, usart_prot_handler_status, usart_read_buffer_job(), and usart_read_job().

Referenced by configure_console().

struct usart_module cdc_uart_module

static

Referenced by configure_console(), and enter_wifi_firmware_download().

uint8_t change_state = 0

static

Referenced by nm_usart_protocol_handler(), usart_rx_complete_handler(), and usart_tx_complete_handler().

uint8_t new_state = INIT

static

Referenced by nm_usart_protocol_handler(), usart_rx_complete_handler(), and usart_tx_complete_handler().

uint8_t schedule_rx = 0

static

Referenced by enter_wifi_firmware_download(), nm_usart_protocol_handler(), and usart_tx_complete_handler().

uint16_t* schedule_rx_buffer = NULL

static

Referenced by enter_wifi_firmware_download(), nm_usart_protocol_handler(), and usart_tx_complete_handler().

uint16_t schedule_rx_length = 0

static

Referenced by configure_console(), enter_wifi_firmware_download(), nm_usart_protocol_handler(), usart_rx_complete_handler(), and usart_tx_complete_handler().

uint8_t serial_command_pending = 0

static

Referenced by enter_wifi_firmware_download(), and nm_usart_protocol_handler().

uart_cmd_hdr uart_cmd

static

uint8* uart_cmd_buf

static

Referenced by nm_usart_protocol_handler().

uint8_t uart_reconfigure = 0

static

Referenced by enter_wifi_firmware_download(), and nm_usart_protocol_handler().

uint16_t usart_cmd_recv_buffer[8]

static

Referenced by configure_console(), enter_wifi_firmware_download(), and nm_usart_protocol_handler().

uint8_t usart_err_on_reception = 0

static

Referenced by enter_wifi_firmware_download().

uint16_t usart_payload_buffer[512]

static

Referenced by enter_wifi_firmware_download(), and nm_usart_protocol_handler().

uint8_t* usart_pkt = NULL

static

Referenced by nm_usart_protocol_handler(), and usart_rx_complete_handler().

uint8_t usart_pkt_received = 0

static

Referenced by enter_wifi_firmware_download(), and usart_rx_complete_handler().

uint8_t usart_prot_handler_status = INIT

static

Referenced by enter_wifi_firmware_download(), nm_usart_protocol_handler(), usart_rx_complete_handler(), and usart_tx_complete_handler().

uint8_t usart_tx_buffer[16]

static

Referenced by enter_wifi_firmware_download().