#ifndef _C51_DRV_H_
#define _C51_DRV_H_

/*_____ I N C L U D E S ____________________________________________________*/


/*_____ M A C R O S ________________________________________________________*/


/*_____ D E F I N I T I O N ________________________________________________*/


/*_____ D E C L A R A T I O N ______________________________________________*/

#define Set_x2_mode()           (CKCON |= MSK_X2)
#define Set_x1_mode()           (CKCON &= ~MSK_X2)
#define Mode_x2()               ((CKCON & MSK_X2) == MSK_X2)

#define Set_idle_mode()         (PCON |= MSK_IDLE)
#define Set_power_down_mode()   (PCON |= MSK_PD)

#define Enable_eram()           (AUXR &= ~MSK_EXTRAM)
#define Disable_eram()          (AUXR |= MSK_EXTRAM)
#define Set_eram_size(s)        (AUXR &= ~MSK_XRS); (AUXR |= s)

#define Enable_interrupt()      (IEN0_bit.EA = 1)
#define Disable_interrupt()     (IEN0_bit.EA = 0)

#define Uart_hw_init(config)    (SCON=(config))
#define Uart_enable()           (SCON|=MSK_UART_ENABLE_RX|MSK_UART_TX_READY)
#define Uart_tx_ready()         ((const bit)TI)
#define Uart_set_tx_busy()      (TI=0)
#define Uart_send_byte(ch)      (SBUF=ch)
#define Uart_rx_ready()         ((const bit)RI)
#define Uart_get_byte()         ((const char)SBUF)
#define Uart_ack_rx_byte()      (RI=0)
#define Uart_set_tx_ready()     (TI=1)


#endif  /* _C51_DRV_H_ */