Make seperate ISP, PDI and TPI folders in the AVRISP project Lib subdirectory to hold each protocol's files.

1 files changed, 0 insertions, 335 deletions

diff --git a/Projects/AVRISP/Lib/PDITarget.c b/Projects/AVRISP/Lib/PDITarget.c
deleted file mode 100644
index 2c6ffd9a6..000000000
--- a/Projects/AVRISP/Lib/PDITarget.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*

-             LUFA Library

-     Copyright (C) Dean Camera, 2009.

-              

-  dean [at] fourwalledcubicle [dot] com

-      www.fourwalledcubicle.com

-*/

-

-/*

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)

-

-  Permission to use, copy, modify, and distribute this software

-  and its documentation for any purpose and without fee is hereby

-  granted, 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 disclaim 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

- *

- *  Target-related functions for the PDI Protocol decoder.

- */

-

-#define  INCLUDE_FROM_PDITARGET_C

-#include "PDITarget.h"

-

-#if defined(ENABLE_PDI_PROTOCOL) || defined(__DOXYGEN__)

-

-/** Flag to indicate if the USART is currently in Tx or Rx mode. */

-volatile bool               IsSending;

-

-#if !defined(PDI_VIA_HARDWARE_USART)

-/** Software USART raw frame bits for transmission/reception. */

-volatile uint16_t           SoftUSART_Data;

-

-/** Bits remaining to be sent or received via the software USART - set as a GPIOR for speed. */

-#define SoftUSART_BitCount  GPIOR2

-

-

-/** ISR to manage the software USART when bit-banged USART mode is selected. */

-ISR(TIMER1_COMPA_vect, ISR_BLOCK)

-{

-	/* Toggle CLOCK pin in a single cycle (see AVR datasheet) */

-	BITBANG_PDICLOCK_PIN |= BITBANG_PDICLOCK_MASK;

-

-	/* If not sending or receiving, just exit */

-	if (!(SoftUSART_BitCount))

-	  return;

-

-	/* Check to see if we are at a rising or falling edge of the clock */

-	if (BITBANG_PDICLOCK_PORT & BITBANG_PDICLOCK_MASK)

-	{

-		/* If at rising clock edge and we are in send mode, abort */

-		if (IsSending)

-		  return;

-		  

-		/* Wait for the start bit when receiving */

-		if ((SoftUSART_BitCount == BITS_IN_PDI_FRAME) && (BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK))

-		  return;

-	

-		/* Shift in the bit one less than the frame size in position, so that the start bit will eventually

-		 * be discarded leaving the data to be byte-aligned for quick access */

-		if (BITBANG_PDIDATA_PIN & BITBANG_PDIDATA_MASK)

-		  SoftUSART_Data |= (1 << (BITS_IN_PDI_FRAME - 1));

-

-		SoftUSART_Data >>= 1;

-		SoftUSART_BitCount--;

-	}

-	else

-	{

-		/* If at falling clock edge and we are in receive mode, abort */

-		if (!IsSending)

-		  return;

-

-		/* Set the data line to the next bit value */

-		if (SoftUSART_Data & 0x01)

-		  BITBANG_PDIDATA_PORT |=  BITBANG_PDIDATA_MASK;

-		else

-		  BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;		  

-

-		SoftUSART_Data >>= 1;

-		SoftUSART_BitCount--;

-	}

-}

-#endif

-

-/** Enables the target's PDI interface, holding the target in reset until PDI mode is exited. */

-void PDITarget_EnableTargetPDI(void)

-{

-#if defined(PDI_VIA_HARDWARE_USART)

-	/* Set Tx and XCK as outputs, Rx as input */

-	DDRD |=  (1 << 5) | (1 << 3);

-	DDRD &= ~(1 << 2);

-	

-	/* Set DATA line high for at least 90ns to disable /RESET functionality */

-	PORTD |= (1 << 3);

-	asm volatile ("NOP"::);

-	asm volatile ("NOP"::);

-	

-	/* Set up the synchronous USART for XMEGA communications - 

-	   8 data bits, even parity, 2 stop bits */

-	UBRR1  = (F_CPU / 1000000UL);

-	UCSR1B = (1 << TXEN1);

-	UCSR1C = (1 << UMSEL10) | (1 << UPM11) | (1 << USBS1) | (1 << UCSZ11) | (1 << UCSZ10) | (1 << UCPOL1);

-

-	/* Send two BREAKs of 12 bits each to enable PDI interface (need at least 16 idle bits) */

-	PDITarget_SendBreak();

-	PDITarget_SendBreak();

-#else

-	/* Set DATA and CLOCK lines to outputs */

-	BITBANG_PDIDATA_DDR  |= BITBANG_PDIDATA_MASK;

-	BITBANG_PDICLOCK_DDR |= BITBANG_PDICLOCK_MASK;

-	

-	/* Set DATA line high for at least 90ns to disable /RESET functionality */

-	BITBANG_PDIDATA_PORT |= BITBANG_PDIDATA_MASK;

-	asm volatile ("NOP"::);

-	asm volatile ("NOP"::);

-

-	/* Fire timer compare ISR every 100 cycles to manage the software USART */

-	OCR1A   = 80;

-	TCCR1B  = (1 << WGM12) | (1 << CS10);

-	TIMSK1  = (1 << OCIE1A);

-	

-	/* Send two BREAKs of 12 bits each to enable TPI interface (need at least 16 idle bits) */

-	PDITarget_SendBreak();

-	PDITarget_SendBreak();

-#endif

-}

-

-/** Disables the target's PDI interface, exits programming mode and starts the target's application. */

-void PDITarget_DisableTargetPDI(void)

-{

-#if defined(PDI_VIA_HARDWARE_USART)

-	/* Turn off receiver and transmitter of the USART, clear settings */

-	UCSR1A |= (1 << TXC1) | (1 << RXC1);

-	UCSR1B  = 0;

-	UCSR1C  = 0;

-

-	/* Set all USART lines as input, tristate */

-	DDRD  &= ~((1 << 5) | (1 << 3));

-	PORTD &= ~((1 << 5) | (1 << 3) | (1 << 2));

-#else

-	/* Set DATA and CLOCK lines to inputs */

-	BITBANG_PDIDATA_DDR   &= ~BITBANG_PDIDATA_MASK;

-	BITBANG_PDICLOCK_DDR  &= ~BITBANG_PDICLOCK_MASK;

-	

-	/* Tristate DATA and CLOCK lines */

-	BITBANG_PDIDATA_PORT  &= ~BITBANG_PDIDATA_MASK;

-	BITBANG_PDICLOCK_PORT &= ~BITBANG_PDICLOCK_MASK;

-#endif

-}

-

-/** Sends a byte via the USART.

- *

- *  \param[in] Byte  Byte to send through the USART

- */

-void PDITarget_SendByte(const uint8_t Byte)

-{

-#if defined(PDI_VIA_HARDWARE_USART)

-	/* Switch to Tx mode if currently in Rx mode */

-	if (!(IsSending))

-	{

-		PORTD  |=  (1 << 3);

-		DDRD   |=  (1 << 3);

-

-		UCSR1B |=  (1 << TXEN1);

-		UCSR1B &= ~(1 << RXEN1);

-		

-		IsSending = true;

-	}

-	

-	/* Wait until there is space in the hardware Tx buffer before writing */

-	while (!(UCSR1A & (1 << UDRE1)));

-	UCSR1A |= (1 << TXC1);

-	UDR1    = Byte;

-#else

-	/* Switch to Tx mode if currently in Rx mode */

-	if (!(IsSending))

-	{

-		BITBANG_PDIDATA_PORT |= BITBANG_PDIDATA_MASK;

-		BITBANG_PDIDATA_DDR  |= BITBANG_PDIDATA_MASK;

-

-		IsSending = true;

-	}

-

-	/* Calculate the new USART frame data here while while we wait for a previous byte (if any) to finish sending */

-	uint16_t NewUSARTData = ((1 << 11) | (1 << 10) | (0 << 9) | ((uint16_t)Byte << 1) | (0 << 0));

-

-	/* Compute Even parity - while a bit is still set, chop off lowest bit and toggle parity bit */

-	uint8_t ParityData    = Byte;

-	while (ParityData)

-	{

-		NewUSARTData ^= (1 << 9);

-		ParityData   &= (ParityData - 1);

-	}

-

-	/* Wait until transmitter is idle before writing new data */

-	while (SoftUSART_BitCount);

-

-	/* Data shifted out LSB first, START DATA PARITY STOP STOP */

-	SoftUSART_Data     = NewUSARTData;

-	SoftUSART_BitCount = BITS_IN_PDI_FRAME;

-#endif

-}

-

-/** Receives a byte via the software USART, blocking until data is received.

- *

- *  \return Received byte from the USART

- */

-uint8_t PDITarget_ReceiveByte(void)

-{

-#if defined(PDI_VIA_HARDWARE_USART)

-	/* Switch to Rx mode if currently in Tx mode */

-	if (IsSending)

-	{

-		while (!(UCSR1A & (1 << TXC1)));

-		UCSR1A |=  (1 << TXC1);

-

-		UCSR1B &= ~(1 << TXEN1);

-		UCSR1B |=  (1 << RXEN1);

-

-		DDRD   &= ~(1 << 3);

-		PORTD  &= ~(1 << 3);

-		

-		IsSending = false;

-	}

-

-	/* Wait until a byte has been received before reading */

-	while (!(UCSR1A & (1 << RXC1)));

-	return UDR1;

-#else

-	/* Switch to Rx mode if currently in Tx mode */

-	if (IsSending)

-	{

-		while (SoftUSART_BitCount);

-

-		BITBANG_PDIDATA_DDR  &= ~BITBANG_PDIDATA_MASK;

-		BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;

-

-		IsSending = false;

-	}

-

-	/* Wait until a byte has been received before reading */

-	SoftUSART_BitCount = BITS_IN_PDI_FRAME;

-	while (SoftUSART_BitCount);

-	

-	/* Throw away the parity and stop bits to leave only the data (start bit is already discarded) */

-	return (uint8_t)SoftUSART_Data;

-#endif

-}

-

-/** Sends a BREAK via the USART to the attached target, consisting of a full frame of idle bits. */

-void PDITarget_SendBreak(void)

-{

-#if defined(PDI_VIA_HARDWARE_USART)

-	/* Switch to Tx mode if currently in Rx mode */

-	if (!(IsSending))

-	{

-		PORTD  |=  (1 << 3);

-		DDRD   |=  (1 << 3);

-

-		UCSR1B &= ~(1 << RXEN1);

-		UCSR1B |=  (1 << TXEN1);

-		

-		IsSending = true;

-	}

-

-	/* Need to do nothing for a full frame to send a BREAK */

-	for (uint8_t i = 0; i < BITS_IN_PDI_FRAME; i++)

-	{

-		/* Wait for a full cycle of the clock */

-		while (PIND & (1 << 5));

-		while (!(PIND & (1 << 5)));

-	}

-#else

-	/* Switch to Tx mode if currently in Rx mode */

-	if (!(IsSending))

-	{

-		BITBANG_PDIDATA_PORT |= BITBANG_PDIDATA_MASK;

-		BITBANG_PDIDATA_DDR  |= BITBANG_PDIDATA_MASK;

-

-		IsSending = true;

-	}

-	

-	while (SoftUSART_BitCount);

-

-	/* Need to do nothing for a full frame to send a BREAK */

-	SoftUSART_Data     = 0x0FFF;

-	SoftUSART_BitCount = BITS_IN_PDI_FRAME;

-#endif

-}

-

-/** Busy-waits while the NVM controller is busy performing a NVM operation, such as a FLASH page read or CRC

- *  calculation.

- *

- *  \return Boolean true if the NVM controller became ready within the timeout period, false otherwise

- */

-bool PDITarget_WaitWhileNVMBusBusy(void)

-{

-	TCNT0 = 0;

-	TIFR0 = (1 << OCF1A);

-			

-	uint8_t TimeoutMS = PDI_NVM_TIMEOUT_MS;

-	

-	/* Poll the STATUS register to check to see if NVM access has been enabled */

-	while (TimeoutMS)

-	{

-		/* Send the LDCS command to read the PDI STATUS register to see the NVM bus is active */

-		PDITarget_SendByte(PDI_CMD_LDCS | PDI_STATUS_REG);

-		if (PDITarget_ReceiveByte() & PDI_STATUS_NVM)

-		  return true;

-

-		if (TIFR0 & (1 << OCF1A))

-		{

-			TIFR0 = (1 << OCF1A);

-			TimeoutMS--;

-		}

-	}

-	

-	return false;

-}

-

-#endif