From 0ed2d3c95309ecf5905ec06624fc68955fdbd2d0 Mon Sep 17 00:00:00 2001
From: Zach Eveland <zeveland@blacklabel-development.com>
Date: Tue, 10 Jan 2012 16:29:47 -0500
Subject: renamed DiskLoader to Caterina (after Leonardo's mom)

---
 bootloaders/diskloader/src/USBCore.cpp | 510 ---------------------------------
 1 file changed, 510 deletions(-)
 delete mode 100644 bootloaders/diskloader/src/USBCore.cpp

(limited to 'bootloaders/diskloader/src/USBCore.cpp')

diff --git a/bootloaders/diskloader/src/USBCore.cpp b/bootloaders/diskloader/src/USBCore.cpp
deleted file mode 100644
index ac5d081..0000000
--- a/bootloaders/diskloader/src/USBCore.cpp
+++ /dev/null
@@ -1,510 +0,0 @@
-
-
-/* Copyright (c) 2010, Peter Barrett  
-**  
-** Permission to use, copy, modify, and/or distribute this software for  
-** any purpose with or without fee is hereby granted, provided that the  
-** above copyright notice and this permission notice appear in all copies.  
-** 
-** THE SOFTWARE IS PROVIDED "AS IS" AND 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, DIRECT, 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.  
-*/
-
-#include "Platform.h"
-
-#define CDC_TX CDC_ENDPOINT_IN
-#define CDC_RX CDC_ENDPOINT_OUT
-
-#define EP_TYPE_CONTROL				0x00
-#define EP_TYPE_BULK_IN				0x81
-#define EP_TYPE_BULK_OUT			0x80
-#define EP_TYPE_INTERRUPT_IN		0xC1
-#define EP_TYPE_INTERRUPT_OUT		0xC0
-#define EP_TYPE_ISOCHRONOUS_IN		0x41
-#define EP_TYPE_ISOCHRONOUS_OUT		0x40
-
-/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */
-#define TX_RX_LED_PULSE_MS 100
-uint8_t TxLEDPulse; /**< Milliseconds remaining for data Tx LED pulse */
-uint8_t RxLEDPulse; /**< Milliseconds remaining for data Rx LED pulse */
-
-void Reset();
-
-//==================================================================
-//==================================================================
-
-typedef struct
-{
-	uint32_t	dwDTERate;
-	uint8_t	bCharFormat;
-	uint8_t 	bParityType;
-	uint8_t 	bDataBits;
-	uint8_t	lineState;
-} LineInfo;
-
-static volatile LineInfo _usbLineInfo = { 57600, 0x00, 0x00, 0x00, 0x00 };
-
-//==================================================================
-//==================================================================
-
-//	4 bytes of RAM
-volatile uint8_t _usbConfiguration;
-volatile uint8_t _ejected;
-volatile uint16_t _timeout;
-
-static inline void WaitIN(void)
-{
-	while (!(UEINTX & (1<<TXINI)));
-}
-
-static inline void ClearIN(void)
-{
-	UEINTX = ~(1<<TXINI);
-}
-
-static inline void WaitOUT(void)
-{
-	while (!(UEINTX & (1<<RXOUTI)))
-		;
-}
-
-static inline uint8_t WaitForINOrOUT()
-{
-	while (!(UEINTX & ((1<<TXINI)|(1<<RXOUTI))))
-		;
-	return (UEINTX & (1<<RXOUTI)) == 0;
-}
-
-static inline void ClearOUT(void)
-{
-	UEINTX = ~(1<<RXOUTI);
-}
-
-static
-void Send(volatile const uint8_t* data, uint8_t count)
-{
-	TX_LED_ON();					// light the TX LED
-	TxLEDPulse = TX_RX_LED_PULSE_MS;
-	while (count--)
-		UEDATX = *data++;
-}
-
-void Recv(volatile uint8_t* data, uint8_t count)
-{
-	RX_LED_ON();					// light the RX LED
-	RxLEDPulse = TX_RX_LED_PULSE_MS;
-	while (count--)
-		*data++ = UEDATX;
-}
-
-static inline uint8_t Recv8()
-{
-	RX_LED_ON();					// light the RX LED
-	RxLEDPulse = TX_RX_LED_PULSE_MS;
-	return UEDATX;
-}
-
-static inline void Send8(uint8_t d)
-{
-	TX_LED_ON();					// light the TX LED
-	TxLEDPulse = TX_RX_LED_PULSE_MS;
-	UEDATX = d;
-}
-
-static inline void SetEP(uint8_t ep)
-{
-	UENUM = ep;
-}
-
-static inline uint8_t FifoByteCount()
-{
-	return UEBCLX;
-}
-
-static inline uint8_t ReceivedSetupInt()
-{
-	return UEINTX & (1<<RXSTPI);
-}
-
-static inline void ClearSetupInt()
-{
-	UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
-}
-
-static inline void Stall()
-{
-	UECONX = (1<<STALLRQ) | (1<<EPEN);
-}
-
-static inline uint8_t ReadWriteAllowed()
-{
-	return UEINTX & (1<<RWAL);
-}
-
-static inline uint8_t Stalled()
-{
-	return UEINTX & (1<<STALLEDI);
-}
-
-static inline uint8_t FifoFree()
-{
-	return UEINTX & (1<<FIFOCON);
-}
-
-static inline void ReleaseRX()
-{
-	UEINTX = 0x6B;	// FIFOCON=0 NAKINI=1 RWAL=1 NAKOUTI=0 RXSTPI=1 RXOUTI=0 STALLEDI=1 TXINI=1
-}
-
-static inline void ReleaseTX()
-{
-	UEINTX = 0x3A;	// FIFOCON=0 NAKINI=0 RWAL=1 NAKOUTI=1 RXSTPI=1 RXOUTI=0 STALLEDI=1 TXINI=0
-}
-
-static inline uint8_t FrameNumber()
-{
-	return UDFNUML;
-}
-
-//==================================================================
-//==================================================================
-
-#define EP_SINGLE_64 0x32	// EP0
-#define EP_DOUBLE_64 0x36	// Other endpoints
-
-static void InitEP(uint8_t index, uint8_t type, uint8_t size)
-{
-	UENUM = index;
-	UECONX = 1;
-	UECFG0X = type;
-	UECFG1X = size;
-}
-
-//	API
-void USBInit(void)
-{
-	_timeout = 0;
-	_usbConfiguration = 0;
-	_ejected = 0;
-	
-	UHWCON = 0x01;						// power internal reg (don't need this?)
-	USBCON = (1<<USBE)|(1<<FRZCLK);		// clock frozen, usb enabled
-	PLLCSR = 0x12;						// Need 16 MHz xtal
-	while (!(PLLCSR & (1<<PLOCK)))		// wait for lock pll
-		;
-	USBCON = ((1<<USBE)|(1<<OTGPADE));	// start USB clock
-	UDCON = 0;							// enable attach resistor
-}
-
-uint8_t USBGetConfiguration(void)
-{
-	return _usbConfiguration;
-}
-
-uint8_t HasData(uint8_t ep)
-{
-	SetEP(ep);
-	return ReadWriteAllowed();	// count in fifo
-}
-
-int USBGetChar();
-void Recv(uint8_t ep, uint8_t* dst, uint8_t len)
-{
-	SetEP(ep);
-	while (len--)
-	{
-		while (!ReadWriteAllowed())
-			;
-		*dst++ = Recv8();
-		if (!ReadWriteAllowed())	// release empty buffer
-			ReleaseRX();
-	}
-}
-
-//	Transmit a packet to endpoint
-void Transfer(uint8_t ep, const uint8_t* data, int len)
-{
-	uint8_t zero = ep & TRANSFER_ZERO;
-	SetEP(ep & 7);
-	while (len--)
-	{
-		while (!ReadWriteAllowed())
-			;	// TODO Check for STALL etc
-
-		uint8_t d = (ep & TRANSFER_PGM) ? pgm_read_byte(data) : data[0];
-		data++;
-		if (zero)
-			d = 0;
-		Send8(d);
-
-		if (!ReadWriteAllowed())
-			ReleaseTX();
-	}
-	if (ep & TRANSFER_RELEASE)
-		ReleaseTX();
-}
-
-extern const uint8_t _initEndpoints[] PROGMEM;
-const uint8_t _initEndpoints[] = 
-{
-	0,
-
-	EP_TYPE_INTERRUPT_IN,		// CDC_ENDPOINT_ACM
-	EP_TYPE_BULK_OUT,			// CDC_ENDPOINT_OUT
-	EP_TYPE_BULK_IN,			// CDC_ENDPOINT_IN
-
-#ifdef HID_ENABLED
-	EP_TYPE_INTERRUPT_IN,		// HID_ENDPOINT_INT
-#endif
-};
-
-static void InitEndpoints()
-{
-	for (uint8_t i = 1; i < sizeof(_initEndpoints); i++)
-	{
-		UENUM = i;
-		UECONX = 1;
-		UECFG0X = pgm_read_byte(_initEndpoints+i);
-		UECFG1X = EP_DOUBLE_64;
-	}
-	UERST = 0x7E;	// And reset them
-	UERST = 0;
-}
-
-typedef struct
-{
-	uint8_t bmRequestType;
-	uint8_t bRequest;
-	uint8_t wValueL;
-	uint8_t wValueH;
-	uint16_t wIndex;
-	uint16_t wLength;
-} Setup;
-Setup _setup;
-
-//bool USBHook(Setup& setup)
-bool USBHook()
-{
-	Setup& setup = _setup;
-	uint8_t r = setup.bRequest;
-
-	//	CDC Requests
-	if (CDC_GET_LINE_CODING == r)
-	{
-		Send((const volatile uint8_t*)&_usbLineInfo,7);
-	}
-
-	else if (CDC_SET_LINE_CODING ==  r)
-	{
-		WaitOUT();
-		Recv((volatile uint8_t*)&_usbLineInfo,7);
-		ClearOUT();
-	}
-
-	else if (CDC_SET_CONTROL_LINE_STATE == r)
-	{
-		_usbLineInfo.lineState = setup.wValueL;
-	}
-
-	return true;
-}
-
-extern const uint8_t _rawHID[] PROGMEM;
-#define LSB(_x) ((_x) & 0xFF)
-#define MSB(_x) ((_x) >> 8)
-
-#define RAWHID_USAGE_PAGE	0xFFC0
-#define RAWHID_USAGE		0x0C00
-#define RAWHID_TX_SIZE 64
-#define RAWHID_RX_SIZE 64
-
-const uint8_t _rawHID[] =
-{
-	//	RAW HID
-	0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),	// 30
-	0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
-
-	0xA1, 0x01,				// Collection 0x01
-    0x85, 0x03,             // REPORT_ID (3)
-	0x75, 0x08,				// report size = 8 bits
-	0x15, 0x00,				// logical minimum = 0
-	0x26, 0xFF, 0x00,		// logical maximum = 255
-
-	0x95, 64,				// report count TX
-	0x09, 0x01,				// usage
-	0x81, 0x02,				// Input (array)
-
-	0x95, 64,				// report count RX
-	0x09, 0x02,				// usage
-	0x91, 0x02,				// Output (array)
-	0xC0					// end collection
-};
-
-uint8_t _cdcComposite = 0;
-
-bool SendDescriptor()
-{
-	Setup& setup = _setup;
-	uint16_t desc_length = 0;
-	const uint8_t* desc_addr = 0;
-
-	uint8_t t = setup.wValueH;
-	if (0x22 == t)
-	{
-#ifdef HID_ENABLED		
-		desc_addr = _rawHID;
-		desc_length = sizeof(desc_length);
-#endif
-	} else if (USB_DEVICE_DESCRIPTOR_TYPE == t)
-	{
-		desc_addr = (const uint8_t*)&USB_DeviceDescriptor;
-	}
-	else if (USB_CONFIGURATION_DESCRIPTOR_TYPE == t)
-	{
-		desc_addr = (const uint8_t*)&USB_ConfigDescriptor;
-		desc_length = sizeof(USB_ConfigDescriptor);
-	}
-	else if (USB_STRING_DESCRIPTOR_TYPE == t)
-	{
-		if (setup.wValueL == 0)
-			desc_addr = (const uint8_t*)&STRING_LANGUAGE;
-		else if (setup.wValueL == IPRODUCT) 
-			desc_addr = (const uint8_t*)&STRING_IPRODUCT;
-		else if (setup.wValueL == ISERIAL)
-			desc_addr = (const uint8_t*)&STRING_SERIAL;
-		else if (setup.wValueL == IMANUFACTURER)
-			desc_addr = (const uint8_t*)&STRING_IMANUFACTURER;
-		else
-			return false;
-	} else 
-		return false;
-
-	if (desc_length == 0)
-		desc_length = pgm_read_byte(desc_addr);
-	if (setup.wLength < desc_length)		
-		desc_length = setup.wLength;
-
-	//	Send descriptor
-	//	EP0 is 64 bytes long
-	//	RWAL and FIFOCON don't work on EP0
-	uint16_t n = 0;
-	do
-	{
-		if (!WaitForINOrOUT())
-			return false;
-		Send8(pgm_read_byte(&desc_addr[n++]));
-		uint8_t clr = n & 0x3F;
-		if (!clr)
-			ClearIN();	// Fifo is full, release this packet
-	} while (n < desc_length);
-	return true;
-}
-
-void USBSetupInterrupt()
-{
-    SetEP(0);
-	if (!ReceivedSetupInt())
-		return;
-
-	Setup& setup = _setup;	// global saves ~30 bytes
-	Recv((uint8_t*)&setup,8);
-	ClearSetupInt();
-
-	if (setup.bmRequestType & DEVICETOHOST)
-		WaitIN();
-	else
-		ClearIN();
-
-    bool ok = true;
-	uint8_t r = setup.bRequest;
-	if (SET_ADDRESS == r)
-	{
-		WaitIN();
-		UDADDR = setup.wValueL | (1<<ADDEN);
-	}
-	else if (SET_CONFIGURATION == r)
-	{
-		_usbConfiguration = setup.wValueL;
-		InitEndpoints();
-	}
-	else if (GET_CONFIGURATION == r)
-	{
-		Send8(_usbConfiguration);
-	}
-	else if (GET_STATUS == r)
-	{
-		Send8(0);		// All good as far as I know
-	}
-	else if (GET_DESCRIPTOR == r)
-	{
-		ok = SendDescriptor();
-	}
-	else
-	{
-		ok = USBHook();
-	}
-
-	if (ok)
-		ClearIN();
-	else
-		Stall();
-}
-
-void USBGeneralInterrupt()
-{
-	uint8_t udint = UDINT;
-	UDINT = 0;
-
-	//	End of Reset
-	if (udint & (1<<EORSTI))
-	{
-		InitEP(0,EP_TYPE_CONTROL,EP_SINGLE_64);	// init ep0
-		_usbConfiguration = 0;			// not configured yet
-	}
-
-	//	Start of Frame - happens every millisecond so we use it for TX and RX LED one-shot timing, too
-	if (udint & (1<<SOFI))
-	{
-		// check whether the one-shot period has elapsed.  if so, turn off the LED
-		if (TxLEDPulse && !(--TxLEDPulse))
-			TX_LED_OFF();
-		if (RxLEDPulse && !(--RxLEDPulse))
-			RX_LED_OFF();
-		
-		if (!_ejected)
-			_timeout = 0;
-	}
-}
-
-void LEDPulse();
-int USBGetChar()
-{
-	for(;;)
-	{
-		USBSetupInterrupt();
-		USBGeneralInterrupt();
-
-		//	Read a char
-		if (HasData(CDC_RX))
-		{
-			uint8_t c = Recv8();
-			if (!ReadWriteAllowed())
-				ReleaseRX();
-			return c;
-		} 
-
-		if (!--_timeout) {
-			Reset();	
-		}
-		
-		_delay_us(100);	// stretch out the bootloader period to about 5 seconds after enumeration
-		LEDPulse();
-	}
-	return -1;
-}
-- 
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