SC16IS750.h

00001 #ifndef MBED_SC16IS750
00002 #define MBED_SC16IS750
00003 
00004 
00005 #define DEFAULT_SC16IS750_ADDR  0x9A
00006 #define DEFAULT_BAUD_RATE       9600
00007 
00008 class SC16IS750 {
00009 public:
00010 
00011     typedef enum {
00012         RHR         = 0x00 << 3,
00013         THR         = 0x00 << 3,
00014         IER         = 0x01 << 3,
00015         FCR         = 0x02 << 3,
00016         IIR         = 0x02 << 3,
00017         LCR         = 0x03 << 3,
00018         MCR         = 0x04 << 3,
00019         LSR         = 0x05 << 3,
00020         MSR         = 0x06 << 3,
00021         SPR         = 0x07 << 3,
00022         TCR         = 0x06 << 3,
00023         TLR         = 0x07 << 3,
00024         TXLVL       = 0x08 << 3,
00025         RXLVL       = 0x09 << 3,
00026         IODir       = 0x0A << 3,
00027         IOState     = 0x0B << 3,
00028         IOIntEna    = 0x0C << 3,
00029         reserved    = 0x0D << 3,
00030         IOControl   = 0x0E << 3,
00031         EFCR        = 0x0F << 3,
00032         DLL         = 0x00 << 3,
00033         DLH         = 0x01 << 3,
00034         EFR         = 0x02 << 3,
00035         XON1        = 0x04 << 3,
00036         XON2        = 0x05 << 3,
00037         XOFF1       = 0x06 << 3,
00038         XOFF2       = 0x07 << 3,
00039     } RegisterName;
00040 
00041     SC16IS750(
00042         PinName I2C_sda,
00043         PinName I2C_scl,
00044         int     baud_rate   = DEFAULT_BAUD_RATE,
00045         char    I2C_address = DEFAULT_SC16IS750_ADDR
00046     );
00047 
00048     void init_registers( void );
00049     void set_baud( int );
00050     void send_str( const char *s );
00051     void register_write( char register_address, char data );
00052     char register_read( char register_address );
00053 
00054 private:
00055     I2C     i2c;
00056     int     baud_rate;
00057     char    i2c_addr;
00058 };
00059 
00060 #endif  //  MBED_SC16IS750