include/fx2ints.h

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// Copyright (C) 2010 Ubixum, Inc. 
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

typedef enum {
 IE0_ISR=0, 
 TF0_ISR, 
 IE1_ISR, 
 TF1_ISR, 
 TI_0_ISR, 
 TF2_ISR, 
 RESUME_ISR, 
 TI_1_ISR, 
 USBINT_ISR, 
 I2CINT_ISR, 
 IE4_ISR, 
 IE5_ISR, 
 IE6_ISR, 
 // Better names for the USART interrupts
 USART0_ISR = TI_0_ISR, 
 USART1_ISR = TI_1_ISR, 
} FX2_ISR;

#define INTERRUPT_HIGH_PRIO     1

#define INTERRUPT_LOW_PRIO      0


// TIMER0
// =======================================================================

#define ENABLE_TIMER0() ET0=1

#define CLEAR_TIMER0()

// TIMER1
// =======================================================================

#define ENABLE_TIMER1() ET1=1

#define CLEAR_TIMER1()

// TIMER2 and external EXF2 interrupt
// =======================================================================

#define ENABLE_TIMER2() ET2=1

#define CLEAR_TIMER2() TF2=0;EXF2=0;

// Resume interrupt
// =======================================================================
// After the FX2 has entered its idle state, it responds to an external signal
// on its WAKEUP/WU2 pins or resumption of USB bus activity by restarting its
// oscillator and resuming firmware execution.

#define ENABLE_RESUME() ERESI = 1 

#define CLEAR_RESUME() RESI=0

// Interrupt 4 - Autovectored FIFO / GPIF or External interrupt 4
// =======================================================================

//#define ENABLE_INT4()

// External Interrupt 5
// =======================================================================

#define ENABLE_INT5() EIEX5=1 

#define CLEAR_INT5() \
        EXIF &= ~bmIE5

// USART0
// =======================================================================

#define SET_USART0_ISR_PRIORITY(p) \
        PS0 = p

#define ENABLE_USART0() \
        ES0 = 1;

#define CLEAR_USART0_RX() \
        RI = 0;

#define CLEAR_USART0_TX() \
        TI = 0;

#define CLEAR_USART0() \
        CLEAR_USART0_RX(); \
        CLEAR_USART0_TX();

// USART1
// =======================================================================

#define SET_USART1_ISR_PRIORITY(p) \
        PS1 = p

#define ENABLE_USART1() \
        ES1 = 1;

#define CLEAR_USART1_RX() \
        RI1 = 0;

#define CLEAR_USART1_TX() \
        TI1 = 0;

#define CLEAR_USART1() \
        CLEAR_USART1_RX(); \
        CLEAR_USART1_TX();

// I2C Interrupt
// =======================================================================

#define SET_I2C_ISR_PRIORITY(p) \
        PI2C = p

#define ENABLE_I2C() \
        EI2C = 1;

#define CLEAR_I2C() \
        EXIF &= ~bmI2CINT;