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tkernel_2/driver/tef_em1d/console/src/ns16450.hbare sourcepermlink (0.04 seconds)

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    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    T-Kernel 2.0 Software Package
    4:  *
    5:  *    Copyright 2011 by Ken Sakamura.
    6:  *    This software is distributed under the latest version of T-License 2.x.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17.
   10:  *    Modified by T-Engine Forum at 2013/03/01.
   11:  *    Modified by TRON Forum(http://www.tron.org/) at 2015/06/01.
   12:  *
   13:  *----------------------------------------------------------------------
   14:  */
   15: 
   16: /*
   17:  *      ns16450.h    Console/Low-level serial I/O driver
   18:  *
   19:  *      General definition of serial controller (NS16450, NS16550)
   20:  */
   21: 
   22: /* Individual definition is required for "_IOADR(n)" and "_CLOCK (Hz)" */
   23: 
   24: /* I/O port address */
   25: #if _TEF_EM1D_
   26: #define SC_DATA         _IOADR(0)      /* Data register             R/W */
   27: #define SC_INTE         _IOADR(1)      /* Interrupt-enabled register        R/W */
   28: #define SC_INTS         _IOADR(2)      /* Interrupt ident register  R   */
   29: #define SC_FCTL         _IOADR(3)      /* FIFO control register       W */
   30: #define SC_LCTL         _IOADR(4)      /* Line control register     R/W */
   31: #define SC_MCTL         _IOADR(5)      /* Modem control register    R/W */
   32: #define SC_LSTS         _IOADR(6)      /* Line status register              R   */
   33: #define SC_MSTS         _IOADR(7)      /* Modem status register     R   */
   34: #define SC_SCRA         _IOADR(8)      /* Temporary data register   R/W */
   35: #define SC_DIVL         _IOADR(9)      /* Freq dividing count lower R/W */
   36: #define SC_DIVH         _IOADR(10)     /* Freq dividing count upper        R/W */
   37: #else
   38: #define SC_DATA         _IOADR(0)      /* Data register             R/W */
   39: #define SC_INTE         _IOADR(1)      /* Interrupt-enabled register        R/W */
   40: #define SC_INTS         _IOADR(2)      /* Interrupt ident register  R   */
   41: #define SC_FCTL         _IOADR(2)      /* FIFO control register       W */
   42: #define SC_LCTL         _IOADR(3)      /* Line control register     R/W */
   43: #define SC_MCTL         _IOADR(4)      /* Modem control register    R/W */
   44: #define SC_LSTS         _IOADR(5)      /* Line status register              R   */
   45: #define SC_MSTS         _IOADR(6)      /* Modem status register     R   */
   46: #define SC_SCRA         _IOADR(7)      /* Temporary data register   R/W */
   47: #define SC_DIVL         _IOADR(0)      /* Freq dividing count lower R/W */
   48: #define SC_DIVH         _IOADR(1)      /* Freq dividing count upper R/W */
   49: #endif
   50: 
   51: /* Communication speed -> frequency dividing count value */
   52: #define SC_LINE_SPEED(bps)      ( _CLOCK / 16 / (bps) )
   53: 
   54: /* Line control register */
   55: #define LC_DLAB         0x80           /* Frequency dividing counter access */
   56: #define LC_SBRK         0x40           /* Break sending */
   57: #define LC_STKP         0x20           /* Parity fix */
   58: #define LC_EVNP         0x10           /* Even parity */
   59: #define LC_ENAP         0x08           /* Enable parity */
   60: #define LC_STOP         0x04           /* Stop bit */
   61: #define LC_BLEN         0x03           /* The number of data bits */
   62: 
   63: #define LC_NoParity     (0x00)
   64: #define LC_EvenParity   (LC_ENAP|LC_EVNP)
   65: #define LC_OddParity    (LC_ENAP)
   66: 
   67: /* Line status register */
   68: #define LS_RFER         0x80           /* Error in the receive FIFO */
   69: #define LS_TSRE         0x40           /* Send shift register is empty */
   70: #define LS_THRE         0x20           /* Send hold register is empty*/
   71: #define LS_BINT         0x10           /* Receive break */
   72: #define LS_FERR         0x08           /* Framing error */
   73: #define LS_PERR         0x04           /* Parity error */
   74: #define LS_OERR         0x02           /* Overrun error */
   75: #define LS_DRDY         0x01           /* There is the receive data */
   76: /* Additional definition for driver internal processing */
   77: #define LS_RXOV         0x80           /* Receive-buffer overflow */
   78: 
   79: #define LS_RxERR        (LS_BINT|LS_FERR|LS_PERR|LS_OERR)
   80: 
   81: /* Modem control register */
   82: #define MC_LOOP         0x10           /* Loopback test mode */
   83: #define MC_OUT2         0x08           /* User-specified aux output #2 */
   84: #define MC_OUT1         0x04           /* User-specified aux output #1 */
   85: #define MC_RTS          0x02            /* Request To Send */
   86: #define MC_DTR          0x01            /* Data Terminal Ready */
   87: 
   88: /* Modem status register*/
   89: #define MS_CD           0x80             /* Data Carrier Detect */
   90: #define MS_RI           0x40             /* Ring Indicate */
   91: #define MS_DR           0x20             /* Data Set Ready */
   92: #define MS_CS           0x10             /* Clear To Send */
   93: #define MS_D_CD         0x08           /* Change of CD */
   94: #define MS_D_RI         0x04           /* Change of RI */
   95: #define MS_D_DR         0x02           /* Change of DR */
   96: #define MS_D_CS         0x01           /* Change of CS */
   97: 
   98: /* Interrupt-enabled register  */
   99: #define IM_MSTS         0x08           /* Modem status interrupt */
  100: #define IM_LSTS         0x04           /* Receive line status interrupt */
  101: #define IM_SND          0x02            /* Send-enabled interrupt */
  102: #define IM_RCV          0x01            /* Receive-data-enabled interrupt */
  103: 
  104: #define IM_NORM         (IM_LSTS|IM_SND|IM_RCV|IM_MSTS)
  105: 
  106: /* Interrupt identification register */
  107: #define IS_PEND         0x01           /* Interrupt pending */
  108: #define IS_ID           0x0e             /* Interrupt ID */
  109: #define IS_CTMO         0x0c           /* ID=6 char time-out interrupt */
  110: #define IS_LSTS         0x06           /* ID=3 rcv-line status interrupt */
  111: #define IS_RCV          0x04            /* ID=2 rcv-data-enabled interrupt */
  112: #define IS_SND          0x02            /* ID=1 send-enabled interrupt  */
  113: #define IS_MSTS         0x00           /* ID=0 modem status interrupt */
  114: #define IS_FIFO         0xc0           /* FIFO during use */
  115: 
  116: /* FIFO control register */
  117: #define FC_TL01         0x00           /* Receive-interrupt unit  1 byte */
  118: #define FC_TL04         0x40           /* Receive-interrupt unit  4 byte */
  119: #define FC_TL08         0x80           /* Receive-interrupt unit  8 byte */
  120: #define FC_TL14         0xc0           /* Receive-interrupt unit 14 byte */
  121: #define FC_TXCLR        0x04           /* Send FIFO clear  */
  122: #define FC_RXCLR        0x02           /* Receive FIFO clear*/
  123: 
  124: #if _TEF_EM1D_
  125: #define FC_FIFO         0x21           /* Enable 64 bytes FIFO */
  126: #define FIFO_SIZE       64                    /* FIFO size */
  127: #else
  128: #define FC_FIFO         0x01           /* Enable FIFO */
  129: #define FIFO_SIZE       16                    /* FIFO size */
  130: #endif
  131: