main.c File Reference

Application to generate firmware for USB Host Mass Storage Bootloader.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <string.h>
#include "conf_usb_host.h"
#include "conf_bootloader.h"
#include "conf_uart_serial.h"
#include "main.h"

Macros
#define	APP_HEADER   "ATMEL SAM D21 Firmware Generator for USB MSC BOOTLOADER\r\n"
	Console Strings. More...
#define	MSC_DELAY_SOF_COUNT   1000
#define	TASK_FAILED   "FAIL\r\n"
#define	TASK_PASSED   "PASS\r\n"

Functions
static void	console_init (void)
	Initializes the console output. More...
static void	firmware_gen_system_init (void)
	Initializes the device for the bootloader. More...
static void	generate_crc (void)
	Generate the CRC value for the firmware. More...
static bool	generate_firmware (void)
	Function to generate the final firmware. More...
int	main (void)
	Main function. More...
void	main_usb_connection_event (uhc_device_t *dev, bool b_present)
	Notify that a USB device has been connected or disconnected. More...
void	main_usb_sof_event (void)
	Notify that a SOF has been sent (each 1 ms) More...

Variables
COMPILER_WORD_ALIGNED volatile uint8_t	buffer [FLASH_BUFFER_SIZE]
static DIR	file_dir
static FIL	file_object1
static FIL	file_object2
static uint32_t	firmware_crc = 0
static FATFS	fs
static char	input_file_name []
static volatile bool	lun_connected = false
static char	output_file_name []
static TCHAR	root_directory [20] = {'0', ':', 0}
static volatile uint32_t	sof_count = 0
struct usart_module	usart_instance

#define APP_HEADER   "ATMEL SAM D21 Firmware Generator for USB MSC BOOTLOADER\r\n"

Console Strings.

Referenced by firmware_gen_system_init().

#define MSC_DELAY_SOF_COUNT   1000

Referenced by main().

#define TASK_FAILED   "FAIL\r\n"

Referenced by main().

#define TASK_PASSED   "PASS\r\n"

Referenced by main().

static void console_init ( void  )

static

Initializes the console output.

References usart_config::baudrate, CONF_STDIO_BAUDRATE, 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, usart_enable(), and usart_get_config_defaults().

Referenced by firmware_gen_system_init().

static void firmware_gen_system_init ( void  )

static

Initializes the device for the bootloader.

References APP_HEADER, console_init(), cpu_irq_enable, delay_ms, sleepmgr_init(), system_init(), and uhc_start().

Referenced by main().

static void generate_crc ( void  )

static

Generate the CRC value for the firmware.

References APP_CRC_POLYNOMIAL_TYPE, buffer, CRC_BEAT_SIZE_WORD, dma_crc_disable(), dma_crc_get_checksum(), dma_crc_get_config_defaults(), dma_crc_io_calculation(), dma_crc_io_enable(), f_close(), f_open(), f_read(), FA_OPEN_EXISTING, FA_READ, firmware_crc, FLASH_BUFFER_SIZE, input_file_name, dma_crc_config::size, and dma_crc_config::type.

Referenced by main().

static bool generate_firmware ( void  )

static

Function to generate the final firmware.

References APP_BINARY_OFFSET, APP_CRC_SIZE, APP_SIGNATURE, APP_SIGNATURE_SIZE, buffer, f_close(), f_lseek(), f_open(), f_read(), f_sync(), f_write(), FA_CREATE_ALWAYS, FA_OPEN_EXISTING, FA_READ, FA_WRITE, firmware_crc, FLASH_BUFFER_SIZE, FR_OK, input_file_name, and output_file_name.

Referenced by main().

int main

(

void

)

Main function.

Execution starts here.

References APP_MAX_SIZE, cpu_irq_disable, f_close(), f_mount(), f_open(), f_opendir(), FA_OPEN_EXISTING, FA_READ, firmware_gen_system_init(), FR_OK, FIL::fsize, generate_crc(), generate_firmware(), input_file_name, lun_connected, MSC_DELAY_SOF_COUNT, output_file_name, root_directory, sof_count, TASK_FAILED, TASK_PASSED, uhc_stop(), and uhi_msc_mem_get_lun().

void main_usb_connection_event	(	uhc_device_t *	dev,
		bool	b_present
	)

Notify that a USB device has been connected or disconnected.

Parameters

dev	Pointer on USB device information
b_present	true, if the device has been connected

References lun_connected, sof_count, and UNUSED.

void main_usb_sof_event

(

void

)

Notify that a SOF has been sent (each 1 ms)

References sof_count.

COMPILER_WORD_ALIGNED volatile uint8_t buffer[FLASH_BUFFER_SIZE]

Referenced by dma_crc_io_calculation(), generate_crc(), and generate_firmware().

DIR file_dir

static

FIL file_object1

static

FIL file_object2

static

uint32_t firmware_crc = 0

static

Referenced by generate_crc(), and generate_firmware().

FATFS fs

static

Referenced by chk_mounted(), and f_mount().

char input_file_name[]

static

Initial value:

= {
    FIRMWARE_IN_FILE_NAME
}

Referenced by generate_crc(), generate_firmware(), and main().

volatile bool lun_connected = false

static

Referenced by main(), and main_usb_connection_event().

char output_file_name[]

static

Initial value:

= {
    FIRMWARE_OUT_FILE_NAME
}

Referenced by generate_firmware(), and main().

TCHAR root_directory[20] = {'0', ':', 0}

static

Referenced by main().

volatile uint32_t sof_count = 0

static

Referenced by main(), main_usb_connection_event(), and main_usb_sof_event().

struct usart_module usart_instance