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https://github.com/tebl/RC6502-Apple-1-Replica.git
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105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/*
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* Copyright (c) , Majenko Technologies
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Majenko Technologies nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MCP23S17_H
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#define _MCP23S17_H
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#if (ARDUINO >= 100)
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# include <Arduino.h>
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#else
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# include <WProgram.h>
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#endif
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#ifdef __PIC32MX__
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#include <DSPI.h>
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#else
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#include <SPI.h>
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#endif
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class MCP23S17 {
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private:
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#ifdef __PIC32MX__
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DSPI *_spi; /*! This points to a valid SPI object created from the chipKIT DSPI library. */
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#else
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SPIClass *_spi; /*! This points to a valid SPI object created from the Arduino SPI library. */
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#endif
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uint8_t _cs; /*! Chip select pin */
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uint8_t _addr; /*! 3-bit chip address */
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uint8_t _reg[22]; /*! Local mirrors of the 22 internal registers of the MCP23S17 chip */
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enum {
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IODIRA, IODIRB,
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IPOLA, IPOLB,
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GPINTENA, GPINTENB,
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DEFVALA, DEFVALB,
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INTCONA, INTCONB,
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IOCONA, IOCONB,
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GPPUA, GPPUB,
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INTFA, INTFB,
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INTCAPA, INTCAPB,
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GPIOA, GPIOB,
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OLATA, OLATB
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};
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void readRegister(uint8_t addr);
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void writeRegister(uint8_t addr);
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void readAll();
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void writeAll();
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public:
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#ifdef __PIC32MX__
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MCP23S17(DSPI *spi, uint8_t cs, uint8_t addr);
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MCP23S17(DSPI &spi, uint8_t cs, uint8_t addr);
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#else
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MCP23S17(SPIClass *spi, uint8_t cs, uint8_t addr);
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MCP23S17(SPIClass &spi, uint8_t cs, uint8_t addr);
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#endif
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void begin();
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void pinMode(uint8_t pin, uint8_t mode);
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void digitalWrite(uint8_t pin, uint8_t value);
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uint8_t digitalRead(uint8_t pin);
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uint8_t readPort(uint8_t port);
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uint16_t readPort();
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void writePort(uint8_t port, uint8_t val);
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void writePort(uint16_t val);
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void enableInterrupt(uint8_t pin, uint8_t type);
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void disableInterrupt(uint8_t pin);
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void setMirror(boolean m);
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uint16_t getInterruptPins();
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uint16_t getInterruptValue();
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void setInterruptLevel(uint8_t level);
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void setInterruptOD(boolean openDrain);
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};
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#endif
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