The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/rp/rpreg.h

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    1 /* 
    2  * Copyright (c) Comtrol Corporation <support@comtrol.com>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted prodived that the follwoing conditions
    7  * are met.
    8  * 1. Redistributions of source code must retain the above copyright 
    9  *    notive, this list of conditions and the following disclainer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials prodided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *       This product includes software developed by Comtrol Corporation.
   16  * 4. The name of Comtrol Corporation may not be used to endorse or 
   17  *    promote products derived from this software without specific 
   18  *    prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY COMTROL CORPORATION ``AS IS'' AND ANY
   21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL COMTROL CORPORATION BE LIABLE FOR
   24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  * $FreeBSD: releng/5.0/sys/dev/rp/rpreg.h 61541 2000-06-11 06:43:16Z tanimura $
   33  */
   34 
   35 /*
   36  * Begin OS-specific defines -  rpreg.h - for RocketPort FreeBSD
   37  */
   38 
   39 typedef unsigned char Byte_t;
   40 typedef unsigned int ByteIO_t;
   41 
   42 typedef unsigned int Word_t;
   43 typedef unsigned int WordIO_t;
   44 
   45 typedef unsigned long DWord_t;
   46 typedef unsigned int DWordIO_t;
   47 
   48 #define rp_readio(size, ctlp, rid, offset) \
   49         (bus_space_read_##size(rman_get_bustag(ctlp->io[rid]), rman_get_bushandle(ctlp->io[rid]), offset))
   50 #define rp_readmultiio(size, ctlp, rid, offset, addr, count) \
   51         (bus_space_read_multi_##size(rman_get_bustag(ctlp->io[rid]), rman_get_bushandle(ctlp->io[rid]), offset, addr, count))
   52 #define rp_writeio(size, ctlp, rid, offset, data) \
   53         (bus_space_write_##size(rman_get_bustag(ctlp->io[rid]), rman_get_bushandle(ctlp->io[rid]), offset, data))
   54 #define rp_writemultiio(size, ctlp, rid, offset, addr, count) \
   55         (bus_space_write_multi_##size(rman_get_bustag(ctlp->io[rid]), rman_get_bushandle(ctlp->io[rid]), offset, addr, count))
   56 
   57 #define rp_readio1(ctlp, rid, offset)                           rp_readio(1, ctlp, rid, offset)
   58 #define rp_readio2(ctlp, rid, offset)                           rp_readio(2, ctlp, rid, offset)
   59 #define rp_readio4(ctlp, rid, offset)                           rp_readio(4, ctlp, rid, offset)
   60 #define rp_writeio1(ctlp, rid, offset, data)                    rp_writeio(1, ctlp, rid, offset, data)
   61 #define rp_writeio2(ctlp, rid, offset, data)                    rp_writeio(2, ctlp, rid, offset, data)
   62 #define rp_writeio4(ctlp, rid, offset, data)                    rp_writeio(4, ctlp, rid, offset, data)
   63 #define rp_readmultiio1(ctlp, rid, offset, addr, count)         rp_readmultiio(1, ctlp, rid, offset, addr, count) 
   64 #define rp_readmultiio2(ctlp, rid, offset, addr, count)         rp_readmultiio(2, ctlp, rid, offset, addr, count) 
   65 #define rp_readmultiio4(ctlp, rid, offset, addr, count)         rp_readmultiio(4, ctlp, rid, offset, addr, count) 
   66 #define rp_writemultiio1(ctlp, rid, offset, addr, count)        rp_writemultiio(1, ctlp, rid, offset, addr, count) 
   67 #define rp_writemultiio2(ctlp, rid, offset, addr, count)        rp_writemultiio(2, ctlp, rid, offset, addr, count) 
   68 #define rp_writemultiio4(ctlp, rid, offset, addr, count)        rp_writemultiio(4, ctlp, rid, offset, addr, count) 
   69 
   70 #define rp_readaiop1(ctlp, aiop, offset) \
   71         (rp_readio1((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset)))
   72 #define rp_readaiop2(ctlp, aiop, offset) \
   73         (rp_readio2((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset)))
   74 #define rp_readaiop4(ctlp, aiop, offset) \
   75         (rp_readio4((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset)))
   76 #define rp_readmultiaiop1(ctlp, aiop, offset, addr, count) \
   77         (rp_readmultiio1((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   78 #define rp_readmultiaiop2(ctlp, aiop, offset, addr, count) \
   79         (rp_readmultiio2((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   80 #define rp_readmultiaiop4(ctlp, aiop, offset, addr, count) \
   81         (rp_readmultiio4((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   82 #define rp_writeaiop1(ctlp, aiop, offset, data) \
   83         (rp_writeio1((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), data))
   84 #define rp_writeaiop2(ctlp, aiop, offset, data) \
   85         (rp_writeio2((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), data))
   86 #define rp_writeaiop4(ctlp, aiop, offset, data) \
   87         (rp_writeio4((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), data))
   88 #define rp_writemultiaiop1(ctlp, aiop, offset, addr, count) \
   89         (rp_writemultiio1((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   90 #define rp_writemultiaiop2(ctlp, aiop, offset, addr, count) \
   91         (rp_writemultiio2((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   92 #define rp_writemultiaiop4(ctlp, aiop, offset, addr, count) \
   93         (rp_writemultiio4((ctlp), (ctlp)->aiop2rid(aiop, offset), (ctlp)->aiop2off(aiop, offset), addr, count))
   94 
   95 #define rp_readch1(chp, offset) \
   96         (rp_readaiop1((chp)->CtlP, (chp)->AiopNum, offset))
   97 #define rp_readch2(chp, offset) \
   98         (rp_readaiop2((chp)->CtlP, (chp)->AiopNum, offset))
   99 #define rp_readch4(chp, offset) \
  100         (rp_readaiop4((chp)->CtlP, (chp)->AiopNum, offset))
  101 #define rp_readmultich1(chp, offset, addr, count) \
  102         (rp_readmultiaiop1((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  103 #define rp_readmultich2(chp, offset, addr, count) \
  104         (rp_readmultiaiop2((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  105 #define rp_readmultich4(chp, offset, addr, count) \
  106         (rp_readmultiaiop4((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  107 #define rp_writech1(chp, offset, data) \
  108         (rp_writeaiop1((chp)->CtlP, (chp)->AiopNum, offset, data))
  109 #define rp_writech2(chp, offset, data) \
  110         (rp_writeaiop2((chp)->CtlP, (chp)->AiopNum, offset, data))
  111 #define rp_writech4(chp, offset, data) \
  112         (rp_writeaiop4((chp)->CtlP, (chp)->AiopNum, offset, data))
  113 #define rp_writemultich1(chp, offset, addr, count) \
  114         (rp_writemultiaiop1((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  115 #define rp_writemultich2(chp, offset, addr, count) \
  116         (rp_writemultiaiop2((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  117 #define rp_writemultich4(chp, offset, addr, count) \
  118         (rp_writemultiaiop4((chp)->CtlP, (chp)->AiopNum, offset, addr, count))
  119 
  120 /*
  121  * End of OS-specific defines
  122  */
  123 
  124 #define ROCKET_H
  125 
  126 #define CTL_SIZE 4
  127 #define AIOP_CTL_SIZE 4
  128 #define CHAN_AIOP_SIZE 8
  129 #define MAX_PORTS_PER_AIOP 8
  130 #define MAX_AIOPS_PER_BOARD 4
  131 #define MAX_PORTS_PER_BOARD 32
  132 
  133 /* Controller ID numbers */
  134 #define CTLID_NULL  -1              /* no controller exists */
  135 #define CTLID_0001  0x0001          /* controller release 1 */
  136 
  137 /* AIOP ID numbers, identifies AIOP type implementing channel */
  138 #define AIOPID_NULL -1              /* no AIOP or channel exists */
  139 #define AIOPID_0001 0x0001          /* AIOP release 1 */
  140 
  141 #define NULLDEV -1                  /* identifies non-existant device */
  142 #define NULLCTL -1                  /* identifies non-existant controller */
  143 #define NULLCTLPTR (CONTROLLER_T *)0 /* identifies non-existant controller */
  144 #define NULLAIOP -1                 /* identifies non-existant AIOP */
  145 #define NULLCHAN -1                 /* identifies non-existant channel */
  146 
  147 /************************************************************************
  148  Global Register Offsets - Direct Access - Fixed values
  149 ************************************************************************/
  150 
  151 #define _CMD_REG   0x38   /* Command Register            8    Write */
  152 #define _INT_CHAN  0x39   /* Interrupt Channel Register  8    Read */
  153 #define _INT_MASK  0x3A   /* Interrupt Mask Register     8    Read / Write */
  154 #define _UNUSED    0x3B   /* Unused                      8 */
  155 #define _INDX_ADDR 0x3C   /* Index Register Address      16   Write */
  156 #define _INDX_DATA 0x3E   /* Index Register Data         8/16 Read / Write */
  157 
  158 /************************************************************************
  159  Channel Register Offsets for 1st channel in AIOP - Direct Access
  160 ************************************************************************/
  161 #define _TD0       0x00  /* Transmit Data               16   Write */
  162 #define _RD0       0x00  /* Receive Data                16   Read */
  163 #define _CHN_STAT0 0x20  /* Channel Status              8/16 Read / Write */
  164 #define _FIFO_CNT0 0x10  /* Transmit/Receive FIFO Count 16   Read */
  165 #define _INT_ID0   0x30  /* Interrupt Identification    8    Read */
  166 
  167 /************************************************************************
  168  Tx Control Register Offsets - Indexed - External - Fixed
  169 ************************************************************************/
  170 #define _TX_ENBLS  0x980    /* Tx Processor Enables Register 8 Read / Write */
  171 #define _TXCMP1    0x988    /* Transmit Compare Value #1     8 Read / Write */
  172 #define _TXCMP2    0x989    /* Transmit Compare Value #2     8 Read / Write */
  173 #define _TXREP1B1  0x98A    /* Tx Replace Value #1 - Byte 1  8 Read / Write */
  174 #define _TXREP1B2  0x98B    /* Tx Replace Value #1 - Byte 2  8 Read / Write */
  175 #define _TXREP2    0x98C    /* Transmit Replace Value #2     8 Read / Write */
  176 
  177 /************************************************************************
  178  Receive FIFO
  179 ************************************************************************/
  180 #define RXFIFO_DATA     0x5f
  181 #define RXFIFO_OUT      0x5c
  182 #define RXFIFO_EN       0x08
  183 #define RXFIFO_DIS      0xa7
  184 
  185 /************************************************************************
  186 Memory Controller Register Offsets - Indexed - External - Fixed
  187 ************************************************************************/
  188 #define _RX_FIFO    0x000    /* Rx FIFO */
  189 #define _TX_FIFO    0x800    /* Tx FIFO */
  190 #define _RXF_OUTP   0x990    /* Rx FIFO OUT pointer        16 Read / Write */
  191 #define _RXF_INP    0x992    /* Rx FIFO IN pointer         16 Read / Write */
  192 #define _TXF_OUTP   0x994    /* Tx FIFO OUT pointer        8  Read / Write */
  193 #define _TXF_INP    0x995    /* Tx FIFO IN pointer         8  Read / Write */
  194 #define _TXP_CNT    0x996    /* Tx Priority Count          8  Read / Write */
  195 #define _TXP_PNTR   0x997    /* Tx Priority Pointer        8  Read / Write */
  196 
  197 #define PRI_PEND    0x80     /* Priority data pending (bit7, Tx pri cnt) */
  198 #define TXFIFO_SIZE 255      /* size of Tx FIFO */
  199 #define RXFIFO_SIZE 1023     /* size of Rx FIFO */
  200 
  201 /************************************************************************
  202 Tx Priority Buffer - Indexed - External - Fixed
  203 ************************************************************************/
  204 #define _TXP_BUF    0x9C0    /* Tx Priority Buffer  32  Bytes   Read / Write */
  205 #define TXP_SIZE    0x20     /* 32 bytes */
  206 
  207 /************************************************************************
  208 Channel Register Offsets - Indexed - Internal - Fixed
  209 ************************************************************************/
  210 
  211 #define _TX_CTRL    0xFF0    /* Transmit Control               16  Write */
  212 #define _RX_CTRL    0xFF2    /* Receive Control                 8  Write */
  213 #define _BAUD       0xFF4    /* Baud Rate                      16  Write */
  214 #define _CLK_PRE    0xFF6    /* Clock Prescaler                 8  Write */
  215 
  216 #define CLOCK_PRESC 0x19          /* mod 9 (divide by 10) prescale */
  217 
  218 #define BRD50             4607
  219 #define BRD75             3071
  220 #define BRD110            2094
  221 #define BRD134            1712
  222 #define BRD150            1535
  223 #define BRD200            1151
  224 #define BRD300            767
  225 #define BRD600            383
  226 #define BRD1200           191
  227 #define BRD1800           127
  228 #define BRD2000           114
  229 #define BRD2400           95
  230 #define BRD3600           64
  231 #define BRD4800           47
  232 #define BRD7200           31
  233 #define BRD9600           23
  234 #define BRD14400          15
  235 #define BRD19200          11
  236 #define BRD38400          5
  237 #define BRD57600          3
  238 #define BRD76800          2
  239 #define BRD115200         1
  240 #define BRD230400         0
  241 
  242 #define STMBREAK   0x08        /* BREAK */
  243 #define STMFRAME   0x04        /* framing error */
  244 #define STMRCVROVR 0x02        /* receiver over run error */
  245 #define STMPARITY  0x01        /* parity error */
  246 #define STMERROR   (STMBREAK | STMFRAME | STMPARITY)
  247 #define STMBREAKH   0x800      /* BREAK */
  248 #define STMFRAMEH   0x400      /* framing error */
  249 #define STMRCVROVRH 0x200      /* receiver over run error */
  250 #define STMPARITYH  0x100      /* parity error */
  251 #define STMERRORH   (STMBREAKH | STMFRAMEH | STMPARITYH)
  252 
  253 #define CTS_ACT   0x20        /* CTS input asserted */
  254 #define DSR_ACT   0x10        /* DSR input asserted */
  255 #define CD_ACT    0x08        /* CD input asserted */
  256 #define TXFIFOMT  0x04        /* Tx FIFO is empty */
  257 #define TXSHRMT   0x02        /* Tx shift register is empty */
  258 #define RDA       0x01        /* Rx data available */
  259 #define DRAINED (TXFIFOMT | TXSHRMT)  /* indicates Tx is drained */
  260 
  261 #define STATMODE  0x8000      /* status mode enable bit */
  262 #define RXFOVERFL 0x2000      /* receive FIFO overflow */
  263 #define RX2MATCH  0x1000      /* receive compare byte 2 match */
  264 #define RX1MATCH  0x0800      /* receive compare byte 1 match */
  265 #define RXBREAK   0x0400      /* received BREAK */
  266 #define RXFRAME   0x0200      /* received framing error */
  267 #define RXPARITY  0x0100      /* received parity error */
  268 #define STATERROR (RXBREAK | RXFRAME | RXPARITY)
  269 
  270 #define CTSFC_EN  0x80        /* CTS flow control enable bit */
  271 #define RTSTOG_EN 0x40        /* RTS toggle enable bit */
  272 #define TXINT_EN  0x10        /* transmit interrupt enable */
  273 #define STOP2     0x08        /* enable 2 stop bits (0 = 1 stop) */
  274 #define PARITY_EN 0x04        /* enable parity (0 = no parity) */
  275 #define EVEN_PAR  0x02        /* even parity (0 = odd parity) */
  276 #define DATA8BIT  0x01        /* 8 bit data (0 = 7 bit data) */
  277 
  278 #define SETBREAK  0x10        /* send break condition (must clear) */
  279 #define LOCALLOOP 0x08        /* local loopback set for test */
  280 #define SET_DTR   0x04        /* assert DTR */
  281 #define SET_RTS   0x02        /* assert RTS */
  282 #define TX_ENABLE 0x01        /* enable transmitter */
  283 
  284 #define RTSFC_EN  0x40        /* RTS flow control enable */
  285 #define RXPROC_EN 0x20        /* receive processor enable */
  286 #define TRIG_NO   0x00        /* Rx FIFO trigger level 0 (no trigger) */
  287 #define TRIG_1    0x08        /* trigger level 1 char */
  288 #define TRIG_1_2  0x10        /* trigger level 1/2 */
  289 #define TRIG_7_8  0x18        /* trigger level 7/8 */
  290 #define TRIG_MASK 0x18        /* trigger level mask */
  291 #define SRCINT_EN 0x04        /* special Rx condition interrupt enable */
  292 #define RXINT_EN  0x02        /* Rx interrupt enable */
  293 #define MCINT_EN  0x01        /* modem change interrupt enable */
  294 
  295 #define RXF_TRIG  0x20        /* Rx FIFO trigger level interrupt */
  296 #define TXFIFO_MT 0x10        /* Tx FIFO empty interrupt */
  297 #define SRC_INT   0x08        /* special receive condition interrupt */
  298 #define DELTA_CD  0x04        /* CD change interrupt */
  299 #define DELTA_CTS 0x02        /* CTS change interrupt */
  300 #define DELTA_DSR 0x01        /* DSR change interrupt */
  301 
  302 #define REP1W2_EN 0x10        /* replace byte 1 with 2 bytes enable */
  303 #define IGN2_EN   0x08        /* ignore byte 2 enable */
  304 #define IGN1_EN   0x04        /* ignore byte 1 enable */
  305 #define COMP2_EN  0x02        /* compare byte 2 enable */
  306 #define COMP1_EN  0x01        /* compare byte 1 enable */
  307 
  308 #define RESET_ALL 0x80        /* reset AIOP (all channels) */
  309 #define TXOVERIDE 0x40        /* Transmit software off override */
  310 #define RESETUART 0x20        /* reset channel's UART */
  311 #define RESTXFCNT 0x10        /* reset channel's Tx FIFO count register */
  312 #define RESRXFCNT 0x08        /* reset channel's Rx FIFO count register */
  313 
  314 #define INTSTAT0  0x01        /* AIOP 0 interrupt status */
  315 #define INTSTAT1  0x02        /* AIOP 1 interrupt status */
  316 #define INTSTAT2  0x04        /* AIOP 2 interrupt status */
  317 #define INTSTAT3  0x08        /* AIOP 3 interrupt status */
  318 
  319 #define INTR_EN   0x08        /* allow interrupts to host */
  320 #define INT_STROB 0x04        /* strobe and clear interrupt line (EOI) */
  321 
  322 #define CHAN3_EN  0x08        /* enable AIOP 3 */
  323 #define CHAN2_EN  0x04        /* enable AIOP 2 */
  324 #define CHAN1_EN  0x02        /* enable AIOP 1 */
  325 #define CHAN0_EN  0x01        /* enable AIOP 0 */
  326 #define FREQ_DIS  0x00
  327 #define FREQ_274HZ 0x60
  328 #define FREQ_137HZ 0x50
  329 #define FREQ_69HZ  0x40
  330 #define FREQ_34HZ  0x30
  331 #define FREQ_17HZ  0x20
  332 #define FREQ_9HZ   0x10
  333 #define PERIODIC_ONLY 0x80    /* only PERIODIC interrupt */
  334 
  335 #define CHANINT_EN 0x0100           /* flags to enable/disable channel ints */
  336 
  337 #define RDATASIZE 72
  338 #define RREGDATASIZE 52
  339 
  340 #ifndef TRUE
  341 #define TRUE 1
  342 #endif
  343 
  344 #ifndef FALSE
  345 #define FALSE 0
  346 #endif
  347 
  348 struct CONTROLLER_str;
  349 struct CHANNEL_str;
  350 
  351 /* The types of bus-specific methods */
  352 typedef int rp_aiop2rid_t(int, int);
  353 typedef int rp_aiop2off_t(int, int);
  354 typedef unsigned char rp_ctlmask_t(struct CONTROLLER_str *);
  355 
  356 /* Controller level information structure */
  357 struct CONTROLLER_str
  358 {
  359         int             CtlID;
  360         int             NumAiop;
  361         int             AiopID[AIOP_CTL_SIZE];
  362         int             AiopNumChan[AIOP_CTL_SIZE];
  363 
  364         /* Device and resource management */
  365         device_t                dev;            /* device */
  366         int                     io_num;         /* Number of IO resources */
  367         int                     *io_rid;        /* IO resource IDs */
  368         struct resource         **io;           /* IO resources */
  369 
  370         struct rp_port          *rp;            /* port */
  371         struct tty              *tty;           /* tty */
  372 
  373         /* Device nodes */
  374         dev_t                   *dev_nodes;
  375 
  376         /* Bus-specific properties */
  377         void                    *bus_ctlp;
  378 
  379         /* Bus-specific methods */
  380         rp_aiop2rid_t           *aiop2rid;      /* (aiop, offset) -> rid */
  381         rp_aiop2off_t           *aiop2off;      /* (aiop, offset) -> off */
  382         rp_ctlmask_t            *ctlmask;       /* Int status */
  383 };
  384 typedef struct CONTROLLER_str CONTROLLER_T;
  385 typedef CONTROLLER_T CONTROLLER_t;
  386 
  387 /* Channel level information structure */
  388 struct CHANNEL_str
  389 {
  390         CONTROLLER_t    *CtlP;
  391         int             AiopNum;
  392         int             ChanID;
  393         int             ChanNum;
  394 
  395         Word_t          TxFIFO;
  396         Word_t          TxFIFOPtrs;
  397         Word_t          RxFIFO;
  398         Word_t          RxFIFOPtrs;
  399         Word_t          TxPrioCnt;
  400         Word_t          TxPrioPtr;
  401         Word_t          TxPrioBuf;
  402 
  403         Byte_t          R[RREGDATASIZE];
  404 
  405         Byte_t          BaudDiv[4];
  406         Byte_t          TxControl[4];
  407         Byte_t          RxControl[4];
  408         Byte_t          TxEnables[4];
  409         Byte_t          TxCompare[4];
  410         Byte_t          TxReplace1[4];
  411         Byte_t          TxReplace2[4];
  412 };
  413 
  414 typedef struct CHANNEL_str CHANNEL_T;
  415 typedef CHANNEL_T CHANNEL_t;
  416 typedef CHANNEL_T * CHANPTR_T;
  417 
  418 #define CHNOFF_TXRXDATA(chp)    ((chp)->ChanNum * 2 + _TD0)
  419 #define CHNOFF_CHANSTAT(chp)    ((chp)->ChanNum * 2 + _CHN_STAT0)
  420 #define CHNOFF_TXRXCOUNT(chp)   ((chp)->ChanNum * 2 + _FIFO_CNT0)
  421 #define CHNOFF_INTID(chp)       ((chp)->ChanNum     + _INT_ID0)
  422 
  423 /***************************************************************************
  424 Function: sClrBreak
  425 Purpose:  Stop sending a transmit BREAK signal
  426 Call:     sClrBreak(ChP)
  427           CHANNEL_T *ChP; Ptr to channel structure
  428 */
  429 #define sClrBreak(ChP) \
  430 { \
  431    (ChP)->TxControl[3] &= ~SETBREAK; \
  432    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  433 }
  434 
  435 /***************************************************************************
  436 Function: sClrDTR
  437 Purpose:  Clr the DTR output
  438 Call:     sClrDTR(ChP)
  439           CHANNEL_T *ChP; Ptr to channel structure
  440 */
  441 #define sClrDTR(ChP) \
  442 { \
  443    (ChP)->TxControl[3] &= ~SET_DTR; \
  444    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  445 }
  446 
  447 /***************************************************************************
  448 Function: sClrRTS
  449 Purpose:  Clr the RTS output
  450 Call:     sClrRTS(ChP)
  451           CHANNEL_T *ChP; Ptr to channel structure
  452 */
  453 #define sClrRTS(ChP) \
  454 { \
  455    (ChP)->TxControl[3] &= ~SET_RTS; \
  456    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  457 }
  458 
  459 /***************************************************************************
  460 Function: sClrTxXOFF
  461 Purpose:  Clear any existing transmit software flow control off condition
  462 Call:     sClrTxXOFF(ChP)
  463           CHANNEL_T *ChP; Ptr to channel structure
  464 */
  465 #define sClrTxXOFF(ChP) \
  466 { \
  467    rp_writech1(ChP,_CMD_REG,TXOVERIDE | (Byte_t)(ChP)->ChanNum); \
  468    rp_writech1(ChP,_CMD_REG,(Byte_t)(ChP)->ChanNum); \
  469 }
  470 
  471 /***************************************************************************
  472 Function: sDisCTSFlowCtl
  473 Purpose:  Disable output flow control using CTS
  474 Call:     sDisCTSFlowCtl(ChP)
  475           CHANNEL_T *ChP; Ptr to channel structure
  476 */
  477 #define sDisCTSFlowCtl(ChP) \
  478 { \
  479    (ChP)->TxControl[2] &= ~CTSFC_EN; \
  480    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  481 }
  482 
  483 /***************************************************************************
  484 Function: DisParity
  485 Purpose:  Disable parity
  486 Call:     sDisParity(ChP)
  487           CHANNEL_T *ChP; Ptr to channel structure
  488 Comments: Function sSetParity() can be used in place of functions sEnParity(),
  489           sDisParity(), sSetOddParity(), and sSetEvenParity().
  490 */
  491 #define sDisParity(ChP) \
  492 { \
  493    (ChP)->TxControl[2] &= ~PARITY_EN; \
  494    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  495 }
  496 
  497 /***************************************************************************
  498 Function: sDisRxFIFO
  499 Purpose:  Disable Rx FIFO
  500 Call:     sDisRxFIFO(ChP)
  501           CHANNEL_T *ChP; Ptr to channel structure
  502 */
  503 #define sDisRxFIFO(ChP) \
  504 { \
  505    (ChP)->R[0x32] = 0x0a; \
  506    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->R[0x30]); \
  507 }
  508 
  509 /***************************************************************************
  510 Function: sDisRxStatusMode
  511 Purpose:  Disable the Rx status mode
  512 Call:     sDisRxStatusMode(ChP)
  513           CHANNEL_T *ChP; Ptr to channel structure
  514 Comments: This takes the channel out of the receive status mode.  All
  515           subsequent reads of receive data using sReadRxWord() will return
  516           two data bytes.
  517 */
  518 #define sDisRxStatusMode(ChP) rp_writech2(ChP,CHNOFF_CHANSTAT(ChP),0)
  519 
  520 /***************************************************************************
  521 Function: sDisTransmit
  522 Purpose:  Disable transmit
  523 Call:     sDisTransmit(ChP)
  524           CHANNEL_T *ChP; Ptr to channel structure
  525           This disables movement of Tx data from the Tx FIFO into the 1 byte
  526           Tx buffer.  Therefore there could be up to a 2 byte latency
  527           between the time sDisTransmit() is called and the transmit buffer
  528           and transmit shift register going completely empty.
  529 */
  530 #define sDisTransmit(ChP) \
  531 { \
  532    (ChP)->TxControl[3] &= ~TX_ENABLE; \
  533    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  534 }
  535 
  536 /***************************************************************************
  537 Function: sDisTxSoftFlowCtl
  538 Purpose:  Disable Tx Software Flow Control
  539 Call:     sDisTxSoftFlowCtl(ChP)
  540           CHANNEL_T *ChP; Ptr to channel structure
  541 */
  542 #define sDisTxSoftFlowCtl(ChP) \
  543 { \
  544    (ChP)->R[0x06] = 0x8a; \
  545    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->R[0x04]); \
  546 }
  547 
  548 /***************************************************************************
  549 Function: sEnCTSFlowCtl
  550 Purpose:  Enable output flow control using CTS
  551 Call:     sEnCTSFlowCtl(ChP)
  552           CHANNEL_T *ChP; Ptr to channel structure
  553 */
  554 #define sEnCTSFlowCtl(ChP) \
  555 { \
  556    (ChP)->TxControl[2] |= CTSFC_EN; \
  557    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  558 }
  559 
  560 /***************************************************************************
  561 Function: EnParity
  562 Purpose:  Enable parity
  563 Call:     sEnParity(ChP)
  564           CHANNEL_T *ChP; Ptr to channel structure
  565 Comments: Function sSetParity() can be used in place of functions sEnParity(),
  566           sDisParity(), sSetOddParity(), and sSetEvenParity().
  567 
  568 Warnings: Before enabling parity odd or even parity should be chosen using
  569           functions sSetOddParity() or sSetEvenParity().
  570 */
  571 #define sEnParity(ChP) \
  572 { \
  573    (ChP)->TxControl[2] |= PARITY_EN; \
  574    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  575 }
  576 
  577 /***************************************************************************
  578 Function: sEnRTSFlowCtl
  579 Return: void
  580 */
  581 #define sEnRTSFlowCtl(ChP) \
  582 { \
  583         (ChP)->TxControl[2] &= ~RTSTOG_EN; \
  584         (ChP)->TxControl[3] &= ~SET_RTS; \
  585    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  586         (ChP)->RxControl[2] |= RTSFC_EN; \
  587    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->RxControl[0]); \
  588 }
  589 
  590 /***************************************************************************
  591 Function: sDisRTSFlowCtl
  592 Return: void
  593 */
  594 #define sDisRTSFlowCtl(ChP) \
  595 { \
  596         (ChP)->RxControl[2] &= ~RTSFC_EN; \
  597    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->RxControl[0]); \
  598 }
  599 
  600 /***************************************************************************
  601 Function: sEnRxFIFO
  602 Purpose:  Enable Rx FIFO
  603 Call:     sEnRxFIFO(ChP)
  604           CHANNEL_T *ChP; Ptr to channel structure
  605 */
  606 #define sEnRxFIFO(ChP) \
  607 { \
  608    (ChP)->R[0x32] = 0x08; \
  609    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->R[0x30]); \
  610 }
  611 
  612 /***************************************************************************
  613 Function: sEnRxProcessor
  614 Purpose:  Enable the receive processor
  615 Call:     sEnRxProcessor(ChP)
  616           CHANNEL_T *ChP; Ptr to channel structure
  617 Comments: This function is used to start the receive processor.  When
  618           the channel is in the reset state the receive processor is not
  619           running.  This is done to prevent the receive processor from
  620           executing invalid microcode instructions prior to the
  621           downloading of the microcode.
  622 
  623 Warnings: This function must be called after valid microcode has been
  624           downloaded to the AIOP, and it must not be called before the
  625           microcode has been downloaded.
  626 */
  627 #define sEnRxProcessor(ChP) \
  628 { \
  629    (ChP)->RxControl[2] |= RXPROC_EN; \
  630    rp_writech2(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->RxControl[0]); \
  631 }
  632 
  633 /***************************************************************************
  634 Function: sEnRxStatusMode
  635 Purpose:  Enable the Rx status mode
  636 Call:     sEnRxStatusMode(ChP)
  637           CHANNEL_T *ChP; Ptr to channel structure
  638 Comments: This places the channel in the receive status mode.  All subsequent
  639           reads of receive data using sReadRxWord() will return a data byte
  640           in the low word and a status byte in the high word.
  641 
  642 */
  643 #define sEnRxStatusMode(ChP) rp_writech2(ChP,CHNOFF_CHANSTAT(ChP),STATMODE)
  644 
  645 /***************************************************************************
  646 Function: sEnTransmit
  647 Purpose:  Enable transmit
  648 Call:     sEnTransmit(ChP)
  649           CHANNEL_T *ChP; Ptr to channel structure
  650 */
  651 #define sEnTransmit(ChP) \
  652 { \
  653    (ChP)->TxControl[3] |= TX_ENABLE; \
  654    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  655 }
  656 
  657 /***************************************************************************
  658 Function: sGetAiopIntStatus
  659 Purpose:  Get the AIOP interrupt status
  660 Call:     sGetAiopIntStatus(CtlP,AiopNum)
  661           CONTROLLER_T *CtlP; Ptr to controller structure
  662           int AiopNum; AIOP number
  663 Return:   Byte_t: The AIOP interrupt status.  Bits 0 through 7
  664                          represent channels 0 through 7 respectively.  If a
  665                          bit is set that channel is interrupting.
  666 */
  667 #define sGetAiopIntStatus(CtlP,AIOPNUM) rp_readaiop1(CtlP,AIOPNUM,_INT_CHAN)
  668 
  669 /***************************************************************************
  670 Function: sGetAiopNumChan
  671 Purpose:  Get the number of channels supported by an AIOP
  672 Call:     sGetAiopNumChan(CtlP,AiopNum)
  673           CONTROLLER_T *CtlP; Ptr to controller structure
  674           int AiopNum; AIOP number
  675 Return:   int: The number of channels supported by the AIOP
  676 */
  677 #define sGetAiopNumChan(CtlP,AIOPNUM) CtlP->AiopNumChan[AIOPNUM]
  678 
  679 /***************************************************************************
  680 Function: sGetChanIntID
  681 Purpose:  Get a channel's interrupt identification byte
  682 Call:     sGetChanIntID(ChP)
  683           CHANNEL_T *ChP; Ptr to channel structure
  684 Return:   Byte_t: The channel interrupt ID.  Can be any
  685              combination of the following flags:
  686                 RXF_TRIG:     Rx FIFO trigger level interrupt
  687                 TXFIFO_MT:    Tx FIFO empty interrupt
  688                 SRC_INT:      Special receive condition interrupt
  689                 DELTA_CD:     CD change interrupt
  690                 DELTA_CTS:    CTS change interrupt
  691                 DELTA_DSR:    DSR change interrupt
  692 */
  693 #define sGetChanIntID(ChP) (rp_readch1(ChP,(ChP)->ChanNum+_INT_ID0) & (RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR))
  694 
  695 /***************************************************************************
  696 Function: sGetChanNum
  697 Purpose:  Get the number of a channel within an AIOP
  698 Call:     sGetChanNum(ChP)
  699           CHANNEL_T *ChP; Ptr to channel structure
  700 Return:   int: Channel number within AIOP, or NULLCHAN if channel does
  701                not exist.
  702 */
  703 #define sGetChanNum(ChP) (ChP)->ChanNum
  704 
  705 /***************************************************************************
  706 Function: sGetChanStatus
  707 Purpose:  Get the channel status
  708 Call:     sGetChanStatus(ChP)
  709           CHANNEL_T *ChP; Ptr to channel structure
  710 Return:   Word_t: The channel status.  Can be any combination of
  711              the following flags:
  712                 LOW BYTE FLAGS
  713                 CTS_ACT:      CTS input asserted
  714                 DSR_ACT:      DSR input asserted
  715                 CD_ACT:       CD input asserted
  716                 TXFIFOMT:     Tx FIFO is empty
  717                 TXSHRMT:      Tx shift register is empty
  718                 RDA:          Rx data available
  719 
  720                 HIGH BYTE FLAGS
  721                 STATMODE:     status mode enable bit
  722                 RXFOVERFL:    receive FIFO overflow
  723                 RX2MATCH:     receive compare byte 2 match
  724                 RX1MATCH:     receive compare byte 1 match
  725                 RXBREAK:      received BREAK
  726                 RXFRAME:      received framing error
  727                 RXPARITY:     received parity error
  728 Warnings: This function will clear the high byte flags in the Channel
  729           Status Register.
  730 */
  731 #define sGetChanStatus(ChP) rp_readch2(ChP,CHNOFF_CHANSTAT(ChP))
  732 
  733 /***************************************************************************
  734 Function: sGetChanStatusLo
  735 Purpose:  Get the low byte only of the channel status
  736 Call:     sGetChanStatusLo(ChP)
  737           CHANNEL_T *ChP; Ptr to channel structure
  738 Return:   Byte_t: The channel status low byte.  Can be any combination
  739              of the following flags:
  740                 CTS_ACT:      CTS input asserted
  741                 DSR_ACT:      DSR input asserted
  742                 CD_ACT:       CD input asserted
  743                 TXFIFOMT:     Tx FIFO is empty
  744                 TXSHRMT:      Tx shift register is empty
  745                 RDA:          Rx data available
  746 */
  747 #define sGetChanStatusLo(ChP) rp_readch1(ChP,CHNOFF_CHANSTAT(ChP))
  748 
  749 /***************************************************************************
  750 Function: sGetRxCnt
  751 Purpose:  Get the number of data bytes in the Rx FIFO
  752 Call:     sGetRxCnt(ChP)
  753           CHANNEL_T *ChP; Ptr to channel structure
  754 Return:   int: The number of data bytes in the Rx FIFO.
  755 Comments: Byte read of count register is required to obtain Rx count.
  756 
  757 */
  758 #define sGetRxCnt(ChP) rp_readch2(ChP,CHNOFF_TXRXCOUNT(ChP))
  759 
  760 /***************************************************************************
  761 Function: sGetTxCnt
  762 Purpose:  Get the number of data bytes in the Tx FIFO
  763 Call:     sGetTxCnt(ChP)
  764           CHANNEL_T *ChP; Ptr to channel structure
  765 Return:   Byte_t: The number of data bytes in the Tx FIFO.
  766 Comments: Byte read of count register is required to obtain Tx count.
  767 
  768 */
  769 #define sGetTxCnt(ChP) rp_readch1(ChP,CHNOFF_TXRXCOUNT(ChP))
  770 
  771 /*****************************************************************************
  772 Function: sGetTxRxDataIO
  773 Purpose:  Get the offset of a channel's TxRx Data register
  774 Call:     sGetTxRxDataIO(ChP)
  775           CHANNEL_T *ChP; Ptr to channel structure
  776 Return:   WordIO_t: offset of a channel's TxRx Data register
  777 */
  778 #define sGetTxRxDataIO(ChP) CHNOFF_TXRXDATA(ChP)
  779 
  780 /***************************************************************************
  781 Function: sInitChanDefaults
  782 Purpose:  Initialize a channel structure to its default state.
  783 Call:     sInitChanDefaults(ChP)
  784           CHANNEL_T *ChP; Ptr to the channel structure
  785 Comments: This function must be called once for every channel structure
  786           that exists before any other SSCI calls can be made.
  787 
  788 */
  789 #define sInitChanDefaults(ChP) \
  790 { \
  791    (ChP)->CtlP = NULLCTLPTR; \
  792    (ChP)->AiopNum = NULLAIOP; \
  793    (ChP)->ChanID = AIOPID_NULL; \
  794    (ChP)->ChanNum = NULLCHAN; \
  795 }
  796 
  797 /***************************************************************************
  798 Function: sResetAiopByNum
  799 Purpose:  Reset the AIOP by number
  800 Call:     sResetAiopByNum(CTLP,AIOPNUM)
  801         CONTROLLER_T CTLP; Ptr to controller structure
  802         AIOPNUM; AIOP index
  803 */
  804 #define sResetAiopByNum(CTLP,AIOPNUM) \
  805 { \
  806    rp_writeaiop1(CTLP,AIOPNUM,_CMD_REG,RESET_ALL); \
  807    rp_writeaiop1(CTLP,AIOPNUM,_CMD_REG,0x0); \
  808 }
  809 
  810 /***************************************************************************
  811 Function: sSendBreak
  812 Purpose:  Send a transmit BREAK signal
  813 Call:     sSendBreak(ChP)
  814           CHANNEL_T *ChP; Ptr to channel structure
  815 */
  816 #define sSendBreak(ChP) \
  817 { \
  818    (ChP)->TxControl[3] |= SETBREAK; \
  819    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  820 }
  821 
  822 /***************************************************************************
  823 Function: sSetBaud
  824 Purpose:  Set baud rate
  825 Call:     sSetBaud(ChP,Divisor)
  826           CHANNEL_T *ChP; Ptr to channel structure
  827           Word_t Divisor; 16 bit baud rate divisor for channel
  828 */
  829 #define sSetBaud(ChP,DIVISOR) \
  830 { \
  831    (ChP)->BaudDiv[2] = (Byte_t)(DIVISOR); \
  832    (ChP)->BaudDiv[3] = (Byte_t)((DIVISOR) >> 8); \
  833    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->BaudDiv[0]); \
  834 }
  835 
  836 /***************************************************************************
  837 Function: sSetData7
  838 Purpose:  Set data bits to 7
  839 Call:     sSetData7(ChP)
  840           CHANNEL_T *ChP; Ptr to channel structure
  841 */
  842 #define sSetData7(ChP) \
  843 { \
  844    (ChP)->TxControl[2] &= ~DATA8BIT; \
  845    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  846 }
  847 
  848 /***************************************************************************
  849 Function: sSetData8
  850 Purpose:  Set data bits to 8
  851 Call:     sSetData8(ChP)
  852           CHANNEL_T *ChP; Ptr to channel structure
  853 */
  854 #define sSetData8(ChP) \
  855 { \
  856    (ChP)->TxControl[2] |= DATA8BIT; \
  857    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  858 }
  859 
  860 /***************************************************************************
  861 Function: sSetDTR
  862 Purpose:  Set the DTR output
  863 Call:     sSetDTR(ChP)
  864           CHANNEL_T *ChP; Ptr to channel structure
  865 */
  866 #define sSetDTR(ChP) \
  867 { \
  868    (ChP)->TxControl[3] |= SET_DTR; \
  869    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  870 }
  871 
  872 /***************************************************************************
  873 Function: sSetEvenParity
  874 Purpose:  Set even parity
  875 Call:     sSetEvenParity(ChP)
  876           CHANNEL_T *ChP; Ptr to channel structure
  877 Comments: Function sSetParity() can be used in place of functions sEnParity(),
  878           sDisParity(), sSetOddParity(), and sSetEvenParity().
  879 
  880 Warnings: This function has no effect unless parity is enabled with function
  881           sEnParity().
  882 */
  883 #define sSetEvenParity(ChP) \
  884 { \
  885    (ChP)->TxControl[2] |= EVEN_PAR; \
  886    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  887 }
  888 
  889 /***************************************************************************
  890 Function: sSetOddParity
  891 Purpose:  Set odd parity
  892 Call:     sSetOddParity(ChP)
  893           CHANNEL_T *ChP; Ptr to channel structure
  894 Comments: Function sSetParity() can be used in place of functions sEnParity(),
  895           sDisParity(), sSetOddParity(), and sSetEvenParity().
  896 
  897 Warnings: This function has no effect unless parity is enabled with function
  898           sEnParity().
  899 */
  900 #define sSetOddParity(ChP) \
  901 { \
  902    (ChP)->TxControl[2] &= ~EVEN_PAR; \
  903    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  904 }
  905 
  906 /***************************************************************************
  907 Function: sSetRTS
  908 Purpose:  Set the RTS output
  909 Call:     sSetRTS(ChP)
  910           CHANNEL_T *ChP; Ptr to channel structure
  911 */
  912 #define sSetRTS(ChP) \
  913 { \
  914    (ChP)->TxControl[3] |= SET_RTS; \
  915    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  916 }
  917 
  918 /***************************************************************************
  919 Function: sSetRxTrigger
  920 Purpose:  Set the Rx FIFO trigger level
  921 Call:     sSetRxProcessor(ChP,Level)
  922           CHANNEL_T *ChP; Ptr to channel structure
  923           Byte_t Level; Number of characters in Rx FIFO at which the
  924              interrupt will be generated.  Can be any of the following flags:
  925 
  926              TRIG_NO:   no trigger
  927              TRIG_1:    1 character in FIFO
  928              TRIG_1_2:  FIFO 1/2 full
  929              TRIG_7_8:  FIFO 7/8 full
  930 Comments: An interrupt will be generated when the trigger level is reached
  931           only if function sEnInterrupt() has been called with flag
  932           RXINT_EN set.  The RXF_TRIG flag in the Interrupt Idenfification
  933           register will be set whenever the trigger level is reached
  934           regardless of the setting of RXINT_EN.
  935 
  936 */
  937 #define sSetRxTrigger(ChP,LEVEL) \
  938 { \
  939    (ChP)->RxControl[2] &= ~TRIG_MASK; \
  940    (ChP)->RxControl[2] |= LEVEL; \
  941    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->RxControl[0]); \
  942 }
  943 
  944 /***************************************************************************
  945 Function: sSetStop1
  946 Purpose:  Set stop bits to 1
  947 Call:     sSetStop1(ChP)
  948           CHANNEL_T *ChP; Ptr to channel structure
  949 */
  950 #define sSetStop1(ChP) \
  951 { \
  952    (ChP)->TxControl[2] &= ~STOP2; \
  953    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  954 }
  955 
  956 /***************************************************************************
  957 Function: sSetStop2
  958 Purpose:  Set stop bits to 2
  959 Call:     sSetStop2(ChP)
  960           CHANNEL_T *ChP; Ptr to channel structure
  961 */
  962 #define sSetStop2(ChP) \
  963 { \
  964    (ChP)->TxControl[2] |= STOP2; \
  965    rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->TxControl[0]); \
  966 }
  967 
  968 /***************************************************************************
  969 Function: sStartRxProcessor
  970 Purpose:  Start a channel's receive processor
  971 Call:     sStartRxProcessor(ChP)
  972           CHANNEL_T *ChP; Ptr to channel structure
  973 Comments: This function is used to start a Rx processor after it was
  974           stopped with sStopRxProcessor() or sStopSWInFlowCtl().  It
  975           will restart both the Rx processor and software input flow control.
  976 
  977 */
  978 #define sStartRxProcessor(ChP) rp_writech4(ChP,_INDX_ADDR,*(DWord_t *)&(ChP)->R[0])
  979 
  980 /***************************************************************************
  981 Function: sWriteTxByte
  982 Purpose:  Write a transmit data byte to a channel.
  983           CHANNEL_T *ChP; Ptr to channel structure
  984           ByteIO_t io: Channel transmit register I/O address.  This can
  985                            be obtained with sGetTxRxDataIO().
  986           Byte_t Data; The transmit data byte.
  987 Warnings: This function writes the data byte without checking to see if
  988           sMaxTxSize is exceeded in the Tx FIFO.
  989 */
  990 #define sWriteTxByte(ChP,IO,DATA) rp_writech1(ChP,IO,DATA)
  991 
  992 int sReadAiopID(CONTROLLER_T *CtlP, int aiop);
  993 int sReadAiopNumChan(CONTROLLER_T *CtlP, int aiop);
  994 int sInitChan(  CONTROLLER_T *CtlP,
  995                 CHANNEL_T *ChP,
  996                 int AiopNum,
  997                 int ChanNum);
  998 Byte_t sGetRxErrStatus(CHANNEL_T *ChP);
  999 void sStopRxProcessor(CHANNEL_T *ChP);
 1000 void sStopSWInFlowCtl(CHANNEL_T *ChP);
 1001 void sFlushRxFIFO(CHANNEL_T *ChP);
 1002 void sFlushTxFIFO(CHANNEL_T *ChP);
 1003 int sWriteTxPrioByte(CHANNEL_T *ChP, Byte_t Data);
 1004 void sEnInterrupts(CHANNEL_T *ChP,Word_t Flags);
 1005 void sDisInterrupts(CHANNEL_T *ChP,Word_t Flags);
 1006 int rp_attachcommon(CONTROLLER_T *ctlp, int num_aiops, int num_ports);
 1007 void rp_releaseresource(CONTROLLER_t *ctlp);
 1008 
 1009 #ifndef ROCKET_C
 1010 extern Byte_t R[RDATASIZE];
 1011 extern CONTROLLER_T sController[CTL_SIZE];
 1012 extern Byte_t sIRQMap[16];
 1013 #endif
 1014 extern Byte_t rp_sBitMapClrTbl[8];
 1015 extern Byte_t rp_sBitMapSetTbl[8];

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