312 lines
9.1 KiB
C
312 lines
9.1 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2019.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2019 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the MassStorageHost demo. This file contains the main tasks of
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* the demo and is responsible for the initial application hardware configuration.
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*/
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#include "MassStorageHost.h"
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/** LUFA Mass Storage Class driver interface configuration and state information. This structure is
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* passed to all Mass Storage Class driver functions, so that multiple instances of the same class
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* within a device can be differentiated from one another.
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*/
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USB_ClassInfo_MS_Host_t FlashDisk_MS_Interface =
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{
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.Config =
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{
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.DataINPipe =
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{
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.Address = (PIPE_DIR_IN | 1),
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.Banks = 1,
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},
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.DataOUTPipe =
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{
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.Address = (PIPE_DIR_OUT | 2),
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.Banks = 1,
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},
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},
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};
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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GlobalInterruptEnable();
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for (;;)
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{
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MassStorageHost_Task();
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MS_Host_USBTask(&FlashDisk_MS_Interface);
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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#if (ARCH == ARCH_AVR8)
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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#endif
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/* Hardware Initialization */
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Serial_Init(9600, false);
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LEDs_Init();
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USB_Init();
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/* Create a stdio stream for the serial port for stdin and stdout */
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Serial_CreateStream(NULL);
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}
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/** Task to manage an enumerated USB Mass Storage device once connected, to print out
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* data from the device.
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*/
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void MassStorageHost_Task(void)
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{
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if (USB_HostState != HOST_STATE_Configured)
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return;
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LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
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puts_P(PSTR("Waiting until ready...\r\n"));
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for (;;)
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{
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uint8_t ErrorCode = MS_Host_TestUnitReady(&FlashDisk_MS_Interface, 0);
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if (!(ErrorCode))
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break;
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/* Check if an error other than a logical command error (device busy) received */
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if (ErrorCode != MS_ERROR_LOGICAL_CMD_FAILED)
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{
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puts_P(PSTR("Error waiting for device to be ready.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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}
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puts_P(PSTR("Retrieving Capacity...\r\n"));
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SCSI_Capacity_t DiskCapacity;
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if (MS_Host_ReadDeviceCapacity(&FlashDisk_MS_Interface, 0, &DiskCapacity))
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{
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puts_P(PSTR("Error retrieving device capacity.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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printf_P(PSTR("%lu blocks of %lu bytes.\r\n"), DiskCapacity.Blocks, DiskCapacity.BlockSize);
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uint8_t BlockBuffer[DiskCapacity.BlockSize];
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if (MS_Host_ReadDeviceBlocks(&FlashDisk_MS_Interface, 0, 0x00000000, 1, DiskCapacity.BlockSize, BlockBuffer))
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{
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puts_P(PSTR("Error reading device block.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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puts_P(PSTR("\r\nContents of first block:\r\n"));
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for (uint16_t Chunk = 0; Chunk < (DiskCapacity.BlockSize >> 4); Chunk++)
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{
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uint8_t* ChunkPtr = &BlockBuffer[Chunk << 4];
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/* Print out the 16 bytes of the chunk in HEX format */
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for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
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{
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char CurrByte = *(ChunkPtr + ByteOffset);
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printf_P(PSTR("%.2X "), CurrByte);
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}
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printf_P(PSTR(" "));
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/* Print out the 16 bytes of the chunk in ASCII format */
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for (uint8_t ByteOffset = 0; ByteOffset < (1 << 4); ByteOffset++)
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{
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char CurrByte = *(ChunkPtr + ByteOffset);
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putchar(isprint(CurrByte) ? CurrByte : '.');
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}
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printf_P(PSTR("\r\n"));
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}
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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USB_Host_SetDeviceConfiguration(0);
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}
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/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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void EVENT_USB_Host_DeviceAttached(void)
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{
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puts_P(PSTR("Device Attached.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
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* stops the library USB task management process.
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*/
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void EVENT_USB_Host_DeviceUnattached(void)
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{
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puts_P(PSTR("\r\nDevice Unattached.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
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* enumerated by the host and is now ready to be used by the application.
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*/
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void EVENT_USB_Host_DeviceEnumerationComplete(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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uint16_t ConfigDescriptorSize;
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uint8_t ConfigDescriptorData[512];
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if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
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sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
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{
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puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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return;
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}
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if (MS_Host_ConfigurePipes(&FlashDisk_MS_Interface,
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ConfigDescriptorSize, ConfigDescriptorData) != MS_ENUMERROR_NoError)
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{
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puts_P(PSTR("Attached Device Not a Valid Mass Storage Device.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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return;
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}
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if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
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{
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puts_P(PSTR("Error Setting Device Configuration.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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return;
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}
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uint8_t MaxLUNIndex;
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if (MS_Host_GetMaxLUN(&FlashDisk_MS_Interface, &MaxLUNIndex))
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{
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puts_P(PSTR("Error retrieving max LUN index.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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printf_P(PSTR("Total LUNs: %d - Using first LUN in device.\r\n"), (MaxLUNIndex + 1));
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if (MS_Host_ResetMSInterface(&FlashDisk_MS_Interface))
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{
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puts_P(PSTR("Error resetting Mass Storage interface.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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SCSI_Request_Sense_Response_t SenseData;
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if (MS_Host_RequestSense(&FlashDisk_MS_Interface, 0, &SenseData) != 0)
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{
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puts_P(PSTR("Error retrieving device sense.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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if (MS_Host_PreventAllowMediumRemoval(&FlashDisk_MS_Interface, 0, true))
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{
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puts_P(PSTR("Error setting Prevent Device Removal bit.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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SCSI_Inquiry_Response_t InquiryData;
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if (MS_Host_GetInquiryData(&FlashDisk_MS_Interface, 0, &InquiryData))
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{
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puts_P(PSTR("Error retrieving device Inquiry data.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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printf_P(PSTR("Vendor \"%.8s\", Product \"%.16s\"\r\n"), InquiryData.VendorID, InquiryData.ProductID);
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puts_P(PSTR("Mass Storage Device Enumerated.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
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void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
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{
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USB_Disable();
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printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
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" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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for(;;);
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}
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/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
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* enumerating an attached USB device.
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*/
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void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
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const uint8_t SubErrorCode)
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{
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printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
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" -- Error Code %d\r\n"
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" -- Sub Error Code %d\r\n"
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" -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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