TSH.h

00001 #ifndef TSH_H
00002 #define TSH_H
00003 
00004 #include "rtos.h"
00005 
00006 //Thread Safe Hardware
00007 
00008 class TSI2C : public I2C {
00009 public:
00010 
00011     TSI2C( PinName sda,
00012            PinName scl,
00013            const char* name=NULL )
00014             : I2C(sda, scl, name) { }
00015 
00016 
00017     int read( int address,
00018               char* data,
00019               int    length,
00020               bool repeated = false ) {
00021 
00022         rlock.lock();
00023         int retval = I2C::read(address, data, length, repeated);
00024         rlock.unlock();
00025 
00026         return retval;
00027     }
00028 
00029     int read(int ack) {
00030         rlock.lock();
00031         int retval = I2C::read(ack);
00032         rlock.unlock();
00033 
00034         return retval;
00035     }
00036 
00037     int write( int address,
00038                const char*    data,
00039                int length,
00040                bool repeated = false ) {
00041 
00042         wlock.lock();
00043         int retval = I2C::write(address, data, length, repeated);
00044         wlock.unlock();
00045 
00046         return retval;
00047     }
00048 
00049     int write(int data) {
00050         wlock.lock();
00051         int retval = I2C::write(data);
00052         wlock.unlock();
00053 
00054         return retval;
00055     }
00056 
00057 private:
00058     Mutex rlock;
00059     Mutex wlock;
00060 };
00061 
00062 #endif