3 Copyright (C) Dean Camera, 2014.
5 dean [at] fourwalledcubicle [dot] com
10 Copyright 2014 Dean Camera (dean [at] fourwalledcubicle [dot] com)
12 Permission to use, copy, modify, distribute, and sell this
13 software and its documentation for any purpose is hereby granted
14 without fee, provided that the above copyright notice appear in
15 all copies and that both that the copyright notice and this
16 permission notice and warranty disclaimer appear in supporting
17 documentation, and that the name of the author not be used in
18 advertising or publicity pertaining to distribution of the
19 software without specific, written prior permission.
21 The author disclaims all warranties with regard to this
22 software, including all implied warranties of merchantability
23 and fitness. In no event shall the author be liable for any
24 special, indirect or consequential damages or any damages
25 whatsoever resulting from loss of use, data or profits, whether
26 in an action of contract, negligence or other tortious action,
27 arising out of or in connection with the use or performance of
33 * Main source file for the MassStorage demo. This file contains the main tasks of
34 * the demo and is responsible for the initial application hardware configuration.
37 #include "MassStorage.h"
39 /** LUFA Mass Storage Class driver interface configuration and state information. This structure is
40 * passed to all Mass Storage Class driver functions, so that multiple instances of the same class
41 * within a device can be differentiated from one another.
43 USB_ClassInfo_MS_Device_t Disk_MS_Interface =
47 .InterfaceNumber = INTERFACE_ID_MassStorage,
50 .Address = MASS_STORAGE_IN_EPADDR,
51 .Size = MASS_STORAGE_IO_EPSIZE,
56 .Address = MASS_STORAGE_OUT_EPADDR,
57 .Size = MASS_STORAGE_IO_EPSIZE,
60 .TotalLUNs = TOTAL_LUNS,
65 /** Main program entry point. This routine contains the overall program flow, including initial
66 * setup of all components and the main program loop.
72 LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
73 GlobalInterruptEnable();
77 MS_Device_USBTask(&Disk_MS_Interface);
82 /** Configures the board hardware and chip peripherals for the demo's functionality. */
83 void SetupHardware(void)
85 #if (ARCH == ARCH_AVR8)
86 /* Disable watchdog if enabled by bootloader/fuses */
87 MCUSR &= ~(1 << WDRF);
90 /* Disable clock division */
91 clock_prescale_set(clock_div_1);
92 #elif (ARCH == ARCH_XMEGA)
93 /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
94 XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
95 XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
97 /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
98 XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
99 XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
101 PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
104 /* Hardware Initialization */
109 /* Check if the Dataflash is working, abort if not */
110 if (!(DataflashManager_CheckDataflashOperation()))
112 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
116 /* Clear Dataflash sector protections, if enabled */
117 DataflashManager_ResetDataflashProtections();
120 /** Event handler for the library USB Connection event. */
121 void EVENT_USB_Device_Connect(void)
123 LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
126 /** Event handler for the library USB Disconnection event. */
127 void EVENT_USB_Device_Disconnect(void)
129 LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
132 /** Event handler for the library USB Configuration Changed event. */
133 void EVENT_USB_Device_ConfigurationChanged(void)
135 bool ConfigSuccess = true;
137 ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
139 LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
142 /** Event handler for the library USB Control Request reception event. */
143 void EVENT_USB_Device_ControlRequest(void)
145 MS_Device_ProcessControlRequest(&Disk_MS_Interface);
148 /** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
150 * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced
152 bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
156 LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
157 CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
158 LEDs_SetAllLEDs(LEDMASK_USB_READY);
160 return CommandSuccess;