serial_bridge_ultra.c File Reference

Serial Bridge.

Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries.

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

Data Structures
struct	nm_command
struct	serial_bridge_frame
struct	serial_bridge_frame_buffer
struct	serial_bridge_frame_lookup

Macros
#define	PACKET_QUEUE_BUFFER_SIZE   2048
#define	SERIAL_BRIDGE_LOOKUP_TABLE_ENTRIES   sizeof(serial_bridge_lookup_table) / sizeof(struct serial_bridge_frame_lookup)

Functions
sint8	enter_wifi_firmware_download (void)
uint32	get_systicks (void)
int	main (void)
	Main application function. More...
static void	serial_bridge_frame_buffer_pop (struct serial_bridge_frame_buffer *frame, int size)
static int	serial_bridge_frame_get_nm_command (struct serial_bridge_frame *frame, struct nm_command *cmd)
	Read out the first 13bytes and copy into cmd buffer after checking the frame. More...
static int	serial_bridge_frame_receive (struct serial_bridge_frame_buffer *frame, uint16_t len)
static void	serial_bridge_process_frame (void)
static int	serial_bridge_process_read_block (struct serial_bridge_frame *frame)
	Handles the UART frame from nm_read_block() in nmuart.c. More...
static int	serial_bridge_process_read_reg_with_ret (struct serial_bridge_frame *frame)
	Handles the UART frame from nm_read_reg_with_ret() in nmuart.c. More...
static int	serial_bridge_process_reboot_cmd (struct serial_bridge_frame *frame)
static int	serial_bridge_process_reconfigure (struct serial_bridge_frame *frame)
	Handles the UART frame from nm_reconfigure() in nmuart.c. More...
static int	serial_bridge_process_sync_cmd (struct serial_bridge_frame *frame)
	Handles the UART frame from nm_sync_cmd() in nmuart.c. More...
static int	serial_bridge_process_write_block (struct serial_bridge_frame *frame)
	Handles frame from nm_uart_write_block() in nmuart.c. More...
static int	serial_bridge_process_write_reg (struct serial_bridge_frame *frame)
	Handles the UART frame from nm_write_reg() in nmuart.c. More...
void	SysTick_Handler (void)

Variables
static struct serial_bridge_frame_buffer	frame_buffer
tstrWifiInitParam	gstrWifiParam
static volatile uint32	ms_systicks
struct serial_bridge_frame_lookup	serial_bridge_lookup_table []

#define PACKET_QUEUE_BUFFER_SIZE   2048

Referenced by serial_bridge_process_read_block().

#define SERIAL_BRIDGE_LOOKUP_TABLE_ENTRIES   sizeof(serial_bridge_lookup_table) / sizeof(struct serial_bridge_frame_lookup)

Referenced by serial_bridge_process_frame().

sint8 enter_wifi_firmware_download

(

void

)

References serial_bridge_frame_buffer::buffer, buffered_uart_rx(), frame_buffer, M2M_ERR_INIT, M2M_SUCCESS, nm_cpu_start(), serial_bridge_process_frame(), serial_bridge_process_sync_cmd(), and serial_bridge_frame_buffer::size.

Referenced by main().

uint32 get_systicks

(

void

)

References ms_systicks.

int main

(

void

)

Main application function.

Application entry point.

Returns

program return value.

References buffered_uart_init(), enter_wifi_firmware_download(), M2M_ERR, M2M_SUCCESS, m2m_wifi_download_mode(), nm_bsp_init(), system_cpu_clock_get_hz(), and system_init().

static void serial_bridge_frame_buffer_pop ( struct serial_bridge_frame_buffer *  frame, int  size  )

static

References serial_bridge_frame_buffer::buffer, and serial_bridge_frame_buffer::size.

Referenced by serial_bridge_frame_get_nm_command(), serial_bridge_process_frame(), serial_bridge_process_sync_cmd(), and serial_bridge_process_write_block().

static int serial_bridge_frame_get_nm_command ( struct serial_bridge_frame *  frame, struct nm_command *  cmd  )

static

Read out the first 13bytes and copy into cmd buffer after checking the frame.

frame buffer pointer is pop'ed by this function.

References nm_command::addr, nm_command::cmd, serial_bridge_frame::cmd, serial_bridge_frame_buffer_pop(), nm_command::size, and nm_command::val.

Referenced by serial_bridge_process_read_block(), serial_bridge_process_read_reg_with_ret(), serial_bridge_process_reconfigure(), serial_bridge_process_write_block(), and serial_bridge_process_write_reg().

static int serial_bridge_frame_receive ( struct serial_bridge_frame_buffer *  frame, uint16_t  len  )

static

References serial_bridge_frame_buffer::buffer, buffered_uart_rx(), and serial_bridge_frame_buffer::size.

Referenced by serial_bridge_process_write_block().

static void serial_bridge_process_frame ( void  )

static

References serial_bridge_frame_buffer::buffer, buffered_uart_putchar(), frame_buffer, serial_bridge_frame_lookup::header_size, serial_bridge_frame_lookup::min_size, serial_bridge_frame_buffer_pop(), SERIAL_BRIDGE_LOOKUP_TABLE_ENTRIES, and serial_bridge_frame_buffer::size.

Referenced by enter_wifi_firmware_download().

static int serial_bridge_process_read_block ( struct serial_bridge_frame *  frame )

static

Handles the UART frame from nm_read_block() in nmuart.c.

References nm_command::addr, buffered_uart_putchar(), buffered_uart_tx(), nm_read_block(), PACKET_QUEUE_BUFFER_SIZE, serial_bridge_frame_get_nm_command(), and nm_command::size.

static int serial_bridge_process_read_reg_with_ret ( struct serial_bridge_frame *  frame )

static

Handles the UART frame from nm_read_reg_with_ret() in nmuart.c.

References nm_command::addr, buffered_uart_putchar(), nm_read_reg(), serial_bridge_frame_get_nm_command(), and nm_command::val.

static int serial_bridge_process_reboot_cmd ( struct serial_bridge_frame *  frame )

static

static int serial_bridge_process_reconfigure ( struct serial_bridge_frame *  frame )

static

Handles the UART frame from nm_reconfigure() in nmuart.c.

References buffered_uart_init(), buffered_uart_putchar(), buffered_uart_term(), delay_ms, serial_bridge_frame_get_nm_command(), and nm_command::val.

static int serial_bridge_process_sync_cmd ( struct serial_bridge_frame *  frame )

static

Handles the UART frame from nm_sync_cmd() in nmuart.c.

References buffered_uart_putchar(), and serial_bridge_frame_buffer_pop().

Referenced by enter_wifi_firmware_download().

static int serial_bridge_process_write_block ( struct serial_bridge_frame *  frame )

static

Handles frame from nm_uart_write_block() in nmuart.c.

References nm_command::addr, buffered_uart_putchar(), nm_write_block(), serial_bridge_frame_buffer_pop(), serial_bridge_frame_get_nm_command(), serial_bridge_frame_receive(), and nm_command::size.

static int serial_bridge_process_write_reg ( struct serial_bridge_frame *  frame )

static

Handles the UART frame from nm_write_reg() in nmuart.c.

References nm_command::addr, buffered_uart_putchar(), nm_write_reg(), serial_bridge_frame_get_nm_command(), and nm_command::val.

void SysTick_Handler

(

void

)

struct serial_bridge_frame_buffer frame_buffer

static

Referenced by enter_wifi_firmware_download(), and serial_bridge_process_frame().

tstrWifiInitParam gstrWifiParam

volatile uint32 ms_systicks

static

Referenced by get_systicks().

struct serial_bridge_frame_lookup serial_bridge_lookup_table[]

Initial value:

= {
    {{0x12      }, 1, 1,                                  serial_bridge_process_sync_cmd         },
    {{0x13      }, 1, 1,                                  serial_bridge_process_reboot_cmd       },
    {{0xa5, 0x00}, 2, sizeof(struct serial_bridge_frame), serial_bridge_process_read_reg_with_ret},
    {{0xa5, 0x01}, 2, sizeof(struct serial_bridge_frame), serial_bridge_process_write_reg        },
    {{0xa5, 0x02}, 2, sizeof(struct serial_bridge_frame), serial_bridge_process_read_block       },
    {{0xa5, 0x03}, 2, sizeof(struct serial_bridge_frame), serial_bridge_process_write_block      },
    {{0xa5, 0x05}, 2, sizeof(struct serial_bridge_frame), serial_bridge_process_reconfigure      },
}