SD card interface
Diff: mbed-export/BusInOut.h
- Revision:
- 0:22612ae617a0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-export/BusInOut.h Mon Oct 08 11:14:07 2012 +0000 @@ -0,0 +1,115 @@ +/* mbed Microcontroller Library - BusInOut + * Copyright (c) 2009 ARM Limited. All rights reserved. + */ + +#ifndef MBED_BUSINOUT_H +#define MBED_BUSINOUT_H + +#include "platform.h" +#include "PinNames.h" +#include "PeripheralNames.h" +#include "Base.h" +#include "DigitalInOut.h" + +namespace mbed { + +/* Class: BusInOut + * A digital input output bus, used for setting the state of a collection of pins + */ +class BusInOut : public Base { + +public: + + /* Group: Configuration Methods */ + + /* Constructor: BusInOut + * Create an BusInOut, connected to the specified pins + * + * Variables: + * p<n> - DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC) + * + * Note: + * It is only required to specify as many pin variables as is required + * for the bus; the rest will default to NC (not connected) + */ + BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC, + PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC, + PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC, + PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC, + const char *name = NULL); + + BusInOut(PinName pins[16], const char *name = NULL); + + virtual ~BusInOut(); + + /* Group: Access Methods */ + + /* Function: write + * Write the value to the output bus + * + * Variables: + * value - An integer specifying a bit to write for every corresponding DigitalInOut pin + */ + void write(int value); + + + /* Function: read + * Read the value currently output on the bus + * + * Variables: + * returns - An integer with each bit corresponding to associated DigitalInOut pin setting + */ + int read(); + + /* Function: output + * Set as an output + */ + void output(); + + /* Function: input + * Set as an input + */ + void input(); + + /* Function: mode + * Set the input pin mode + * + * Variables: + * mode - PullUp, PullDown, PullNone + */ + void mode(PinMode pull); + +#ifdef MBED_OPERATORS + /* Group: Access Method Shorthand */ + + /* Function: operator= + * A shorthand for <write> + */ + BusInOut& operator= (int v); + BusInOut& operator= (BusInOut& rhs); + + /* Function: operator int() + * A shorthand for <read> + */ + operator int(); +#endif + +#ifdef MBED_RPC + virtual const struct rpc_method *get_rpc_methods(); + static struct rpc_class *get_rpc_class(); +#endif + +protected: + + DigitalInOut* _pin[16]; + +#ifdef MBED_RPC + static void construct(const char *arguments, char *res); +#endif + +}; + +} // namespace mbed + +#endif +