GpioDigitalInOut.cpp

00001 #include    "mbed.h"
00002 #include    "GpioDigitalInOut.h"
00003 
00004 GpioDigitalInOut::GpioDigitalInOut( CompGpioExp &gpiop, GpioPinName pin_name )
00005     : gpio_p( &gpiop ), pin( pin_name ), output_state( 1 ), config_state( 1 )
00006 {
00007     this->input();
00008 }
00009 
00010 GpioDigitalInOut::~GpioDigitalInOut()
00011 {
00012 }
00013 
00014 void GpioDigitalInOut::write( int v )
00015 {
00016     output_state   = v;
00017     gpio_p->write( pin, output_state );
00018 }
00019 
00020 void GpioDigitalInOut::configure( int pin, int v )
00021 {
00022     config_state    = v;
00023     gpio_p->configure( pin, config_state );
00024 }
00025 
00026 int GpioDigitalInOut::read( void )
00027 {
00028     if ( config_state )
00029         return ( gpio_p->read( pin ) );
00030     else
00031         return ( output_state );
00032 }
00033 
00034 void GpioDigitalInOut::input( void )
00035 {
00036     config_state    = 1;
00037     gpio_p->configure( pin, config_state );
00038 }
00039 
00040 void GpioDigitalInOut::output( void )
00041 {
00042     config_state    = 0;
00043     gpio_p->configure( pin, config_state );
00044 }
00045 
00046 GpioDigitalInOut& GpioDigitalInOut::operator=( int rhs )
00047 {
00048     write( rhs );
00049     return ( *this );
00050 }
00051 
00052 GpioDigitalInOut& GpioDigitalInOut::operator=( GpioDigitalInOut& rhs )
00053 {
00054     write( rhs.read() );
00055     return *this;
00056 }
00057 
00058 GpioDigitalInOut::operator int( void )
00059 {
00060     return( read() );
00061 }