Squashed 'lib/lufa/' content from commit 385d40300

git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b

1 files changed, 162 insertions, 0 deletions

diff --git a/Demos/Device/ClassDriver/MassStorage/MassStorage.c b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
new file mode 100644
index 0000000000..7cf8a3e5d2
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+++ b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Main source file for the MassStorage demo. This file contains the main tasks of
+ *  the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "MassStorage.h"
+
+/** LUFA Mass Storage Class driver interface configuration and state information. This structure is
+ *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class
+ *  within a device can be differentiated from one another.
+ */
+USB_ClassInfo_MS_Device_t Disk_MS_Interface =
+	{
+		.Config =
+			{
+				.InterfaceNumber           = INTERFACE_ID_MassStorage,
+				.DataINEndpoint            =
+					{
+						.Address           = MASS_STORAGE_IN_EPADDR,
+						.Size              = MASS_STORAGE_IO_EPSIZE,
+						.Banks             = 1,
+					},
+				.DataOUTEndpoint           =
+					{
+						.Address           = MASS_STORAGE_OUT_EPADDR,
+						.Size              = MASS_STORAGE_IO_EPSIZE,
+						.Banks             = 1,
+					},
+				.TotalLUNs                 = TOTAL_LUNS,
+			},
+	};
+
+
+/** Main program entry point. This routine contains the overall program flow, including initial
+ *  setup of all components and the main program loop.
+ */
+int main(void)
+{
+	SetupHardware();
+
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
+
+	for (;;)
+	{
+		MS_Device_USBTask(&Disk_MS_Interface);
+		USB_USBTask();
+	}
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+	/* Disable watchdog if enabled by bootloader/fuses */
+	MCUSR &= ~(1 << WDRF);
+	wdt_disable();
+
+	/* Disable clock division */
+	clock_prescale_set(clock_div_1);
+#elif (ARCH == ARCH_XMEGA)
+	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
+	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+
+	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
+	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+
+	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
+#endif
+
+	/* Hardware Initialization */
+	LEDs_Init();
+	Dataflash_Init();
+	USB_Init();
+
+	/* Check if the Dataflash is working, abort if not */
+	if (!(DataflashManager_CheckDataflashOperation()))
+	{
+		LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+		for(;;);
+	}
+
+	/* Clear Dataflash sector protections, if enabled */
+	DataflashManager_ResetDataflashProtections();
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+	bool ConfigSuccess = true;
+
+	ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
+
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the library USB Control Request reception event. */
+void EVENT_USB_Device_ControlRequest(void)
+{
+	MS_Device_ProcessControlRequest(&Disk_MS_Interface);
+}
+
+/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
+ *
+ *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface configuration structure being referenced
+ */
+bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
+{
+	bool CommandSuccess;
+
+	LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
+	CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
+	LEDs_SetAllLEDs(LEDMASK_USB_READY);
+
+	return CommandSuccess;
+}
+