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/*
             LUFA Library
     Copyright (C) Dean Camera, 2013.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

/*
  Copyright 2010  David Prentice (david.prentice [at] farming [dot] uk)
  Copyright 2010  Peter Danneger
  Copyright 2013  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
 *
 *  Header file for SoftUART.c.
 */

#ifndef _SOFT_UART_
#define _SOFT_UART_

	/* Includes: */
		#include <avr/io.h>
		#include <avr/interrupt.h>
		#include <stdbool.h>

		#include "../XPLAINBridge.h"
		#include "Config/AppConfig.h"
		
	/* Macros: */
		#define SRX        PD0
		#define SRXPIN     PIND
		#define SRXPORT    PORTD

		#define STX        PD1
		#define STXPORT    PORTD
		#define STXDDR     DDRD

	/* Inline Functions: */
		static inline void SoftUART_SetBaud(const uint32_t Baud)
		{
			uint16_t BitTime = ((F_CPU / Baud) - 1);

			OCR1A = BitTime;
			OCR3A = BitTime;
		}

	/* Function Prototypes: */
		void SoftUART_Init(void);

#endif
2]; unsigned long Reserved_7; unsigned long GPHEN[2]; unsigned long Reserved_8; unsigned long GPLEN[2]; unsigned long Reserved_9; unsigned long GPAREN[2]; unsigned long Reserved_A; unsigned long GPAFEN[2]; unsigned long Reserved_B; unsigned long GPPUD[1]; unsigned long GPPUDCLK[2]; //Ignoring the reserved and test bytes } BCM2835_GPIO_REGS; volatile BCM2835_GPIO_REGS * const pRegs = (BCM2835_GPIO_REGS *) (0x20200000); void SetGpioFunction(unsigned int pinNum, unsigned int funcNum) { int offset = pinNum / 10; unsigned long val = pRegs->GPFSEL[offset]; // Read in the original register value. int item = pinNum % 10; val &= ~(0x7 << (item * 3)); val |= ((funcNum & 0x7) << (item * 3)); pRegs->GPFSEL[offset] = val; } void SetGpioDirection(unsigned int pinNum, enum GPIO_DIR dir) { SetGpioFunction(pinNum,dir); } void SetGpio(unsigned int pinNum, unsigned int pinVal) { unsigned long offset=pinNum/32; unsigned long mask=(1<<(pinNum%32)); if(pinVal) { pRegs->GPSET[offset]|=mask; } else { pRegs->GPCLR[offset]|=mask; } } int ReadGpio(unsigned int pinNum) { return ((pRegs->GPLEV[pinNum/32])>>(pinNum%32))&1; } void EnableGpioDetect(unsigned int pinNum, enum DETECT_TYPE type) { unsigned long mask=(1<<pinNum); unsigned long offset=pinNum/32; switch(type) { case DETECT_RISING: pRegs->GPREN[offset]|=mask; break; case DETECT_FALLING: pRegs->GPFEN[offset]|=mask; break; case DETECT_HIGH: pRegs->GPHEN[offset]|=mask; break; case DETECT_LOW: pRegs->GPLEN[offset]|=mask; break; case DETECT_RISING_ASYNC: pRegs->GPAREN[offset]|=mask; break; case DETECT_FALLING_ASYNC: pRegs->GPAFEN[offset]|=mask; break; case DETECT_NONE: break; } } void DisableGpioDetect(unsigned int pinNum, enum DETECT_TYPE type) { unsigned long mask=~(1<<(pinNum%32)); unsigned long offset=pinNum/32; switch(type) { case DETECT_RISING: pRegs->GPREN[offset]&=mask; break; case DETECT_FALLING: pRegs->GPFEN[offset]&=mask; break; case DETECT_HIGH: pRegs->GPHEN[offset]&=mask; break; case DETECT_LOW: pRegs->GPLEN[offset]&=mask; break; case DETECT_RISING_ASYNC: pRegs->GPAREN[offset]&=mask; break; case DETECT_FALLING_ASYNC: pRegs->GPAFEN[offset]&=mask; break; case DETECT_NONE: break; } } void ClearGpioInterrupt(unsigned int pinNum) { unsigned long mask=(1<<(pinNum%32)); unsigned long offset=pinNum/32; pRegs->GPEDS[offset]=mask; }