drivers/tty/rocket_int.h

   1 /*
   2  * rocket_int.h --- internal header file for rocket.c
   3  *
   4  * Written by Theodore Ts'o, Copyright 1997.
   5  * Copyright 1997 Comtrol Corporation.
   6  *
   7  */
   8
   9 /*
  10  * Definition of the types in rcktpt_type
  11  */
  12 #define ROCKET_TYPE_NORMAL      0
  13 #define ROCKET_TYPE_MODEM       1
  14 #define ROCKET_TYPE_MODEMII     2
  15 #define ROCKET_TYPE_MODEMIII    3
  16 #define ROCKET_TYPE_PC104       4
  17
  18 #include <linux/mutex.h>
  19
  20 #include <asm/io.h>
  21 #include <asm/byteorder.h>
  22
  23 typedef unsigned char Byte_t;
  24 typedef unsigned int ByteIO_t;
  25
  26 typedef unsigned int Word_t;
  27 typedef unsigned int WordIO_t;
  28
  29 typedef unsigned int DWordIO_t;
  30
  31 /*
  32  * Note!  Normally the Linux I/O macros already take care of
  33  * byte-swapping the I/O instructions.  However, all accesses using
  34  * sOutDW aren't really 32-bit accesses, but should be handled in byte
  35  * order.  Hence the use of the cpu_to_le32() macro to byte-swap
  36  * things to no-op the byte swapping done by the big-endian outl()
  37  * instruction.
  38  */
  39
  40 static inline void sOutB(unsigned short port, unsigned char value)
  41 {
  42 #ifdef ROCKET_DEBUG_IO
  43         printk(KERN_DEBUG "sOutB(%x, %x)...\n", port, value);
  44 #endif
  45         outb_p(value, port);
  46 }
  47
  48 static inline void sOutW(unsigned short port, unsigned short value)
  49 {
  50 #ifdef ROCKET_DEBUG_IO
  51         printk(KERN_DEBUG "sOutW(%x, %x)...\n", port, value);
  52 #endif
  53         outw_p(value, port);
  54 }
  55
  56 static inline void out32(unsigned short port, Byte_t *p)
  57 {
  58         u32 value = get_unaligned_le32(p);
  59 #ifdef ROCKET_DEBUG_IO
  60         printk(KERN_DEBUG "out32(%x, %lx)...\n", port, value);
  61 #endif
  62         outl_p(value, port);
  63 }
  64
  65 static inline unsigned char sInB(unsigned short port)
  66 {
  67         return inb_p(port);
  68 }
  69
  70 static inline unsigned short sInW(unsigned short port)
  71 {
  72         return inw_p(port);
  73 }
  74
  75 /* This is used to move arrays of bytes so byte swapping isn't appropriate. */
  76 #define sOutStrW(port, addr, count) if (count) outsw(port, addr, count)
  77 #define sInStrW(port, addr, count) if (count) insw(port, addr, count)
  78
  79 #define CTL_SIZE 8
  80 #define AIOP_CTL_SIZE 4
  81 #define CHAN_AIOP_SIZE 8
  82 #define MAX_PORTS_PER_AIOP 8
  83 #define MAX_AIOPS_PER_BOARD 4
  84 #define MAX_PORTS_PER_BOARD 32
  85
  86 /* Bus type ID */
  87 #define isISA   0
  88 #define isPCI   1
  89 #define isMC    2
  90
  91 /* Controller ID numbers */
  92 #define CTLID_NULL  -1          /* no controller exists */
  93 #define CTLID_0001  0x0001      /* controller release 1 */
  94
  95 /* AIOP ID numbers, identifies AIOP type implementing channel */
  96 #define AIOPID_NULL -1          /* no AIOP or channel exists */
  97 #define AIOPID_0001 0x0001      /* AIOP release 1 */
  98
  99 /************************************************************************
 100  Global Register Offsets - Direct Access - Fixed values
 101 ************************************************************************/
 102
 103 #define _CMD_REG   0x38         /* Command Register            8    Write */
 104 #define _INT_CHAN  0x39         /* Interrupt Channel Register  8    Read */
 105 #define _INT_MASK  0x3A         /* Interrupt Mask Register     8    Read / Write */
 106 #define _UNUSED    0x3B         /* Unused                      8 */
 107 #define _INDX_ADDR 0x3C         /* Index Register Address      16   Write */
 108 #define _INDX_DATA 0x3E         /* Index Register Data         8/16 Read / Write */
 109
 110 /************************************************************************
 111  Channel Register Offsets for 1st channel in AIOP - Direct Access
 112 ************************************************************************/
 113 #define _TD0       0x00         /* Transmit Data               16   Write */
 114 #define _RD0       0x00         /* Receive Data                16   Read */
 115 #define _CHN_STAT0 0x20         /* Channel Status              8/16 Read / Write */
 116 #define _FIFO_CNT0 0x10         /* Transmit/Receive FIFO Count 16   Read */
 117 #define _INT_ID0   0x30         /* Interrupt Identification    8    Read */
 118
 119 /************************************************************************
 120  Tx Control Register Offsets - Indexed - External - Fixed
 121 ************************************************************************/
 122 #define _TX_ENBLS  0x980        /* Tx Processor Enables Register 8 Read / Write */
 123 #define _TXCMP1    0x988        /* Transmit Compare Value #1     8 Read / Write */
 124 #define _TXCMP2    0x989        /* Transmit Compare Value #2     8 Read / Write */
 125 #define _TXREP1B1  0x98A        /* Tx Replace Value #1 - Byte 1  8 Read / Write */
 126 #define _TXREP1B2  0x98B        /* Tx Replace Value #1 - Byte 2  8 Read / Write */
 127 #define _TXREP2    0x98C        /* Transmit Replace Value #2     8 Read / Write */
 128
 129 /************************************************************************
 130 Memory Controller Register Offsets - Indexed - External - Fixed
 131 ************************************************************************/
 132 #define _RX_FIFO    0x000       /* Rx FIFO */
 133 #define _TX_FIFO    0x800       /* Tx FIFO */
 134 #define _RXF_OUTP   0x990       /* Rx FIFO OUT pointer        16 Read / Write */
 135 #define _RXF_INP    0x992       /* Rx FIFO IN pointer         16 Read / Write */
 136 #define _TXF_OUTP   0x994       /* Tx FIFO OUT pointer        8  Read / Write */
 137 #define _TXF_INP    0x995       /* Tx FIFO IN pointer         8  Read / Write */
 138 #define _TXP_CNT    0x996       /* Tx Priority Count          8  Read / Write */
 139 #define _TXP_PNTR   0x997       /* Tx Priority Pointer        8  Read / Write */
 140
 141 #define PRI_PEND    0x80        /* Priority data pending (bit7, Tx pri cnt) */
 142 #define TXFIFO_SIZE 255         /* size of Tx FIFO */
 143 #define RXFIFO_SIZE 1023        /* size of Rx FIFO */
 144
 145 /************************************************************************
 146 Tx Priority Buffer - Indexed - External - Fixed
 147 ************************************************************************/
 148 #define _TXP_BUF    0x9C0       /* Tx Priority Buffer  32  Bytes   Read / Write */
 149 #define TXP_SIZE    0x20        /* 32 bytes */
 150
 151 /************************************************************************
 152 Channel Register Offsets - Indexed - Internal - Fixed
 153 ************************************************************************/
 154
 155 #define _TX_CTRL    0xFF0       /* Transmit Control               16  Write */
 156 #define _RX_CTRL    0xFF2       /* Receive Control                 8  Write */
 157 #define _BAUD       0xFF4       /* Baud Rate                      16  Write */
 158 #define _CLK_PRE    0xFF6       /* Clock Prescaler                 8  Write */
 159
 160 #define STMBREAK   0x08         /* BREAK */
 161 #define STMFRAME   0x04         /* framing error */
 162 #define STMRCVROVR 0x02         /* receiver over run error */
 163 #define STMPARITY  0x01         /* parity error */
 164 #define STMERROR   (STMBREAK | STMFRAME | STMPARITY)
 165 #define STMBREAKH   0x800       /* BREAK */
 166 #define STMFRAMEH   0x400       /* framing error */
 167 #define STMRCVROVRH 0x200       /* receiver over run error */
 168 #define STMPARITYH  0x100       /* parity error */
 169 #define STMERRORH   (STMBREAKH | STMFRAMEH | STMPARITYH)
 170
 171 #define CTS_ACT   0x20          /* CTS input asserted */
 172 #define DSR_ACT   0x10          /* DSR input asserted */
 173 #define CD_ACT    0x08          /* CD input asserted */
 174 #define TXFIFOMT  0x04          /* Tx FIFO is empty */
 175 #define TXSHRMT   0x02          /* Tx shift register is empty */
 176 #define RDA       0x01          /* Rx data available */
 177 #define DRAINED (TXFIFOMT | TXSHRMT)    /* indicates Tx is drained */
 178
 179 #define STATMODE  0x8000        /* status mode enable bit */
 180 #define RXFOVERFL 0x2000        /* receive FIFO overflow */
 181 #define RX2MATCH  0x1000        /* receive compare byte 2 match */
 182 #define RX1MATCH  0x0800        /* receive compare byte 1 match */
 183 #define RXBREAK   0x0400        /* received BREAK */
 184 #define RXFRAME   0x0200        /* received framing error */
 185 #define RXPARITY  0x0100        /* received parity error */
 186 #define STATERROR (RXBREAK | RXFRAME | RXPARITY)
 187
 188 #define CTSFC_EN  0x80          /* CTS flow control enable bit */
 189 #define RTSTOG_EN 0x40          /* RTS toggle enable bit */
 190 #define TXINT_EN  0x10          /* transmit interrupt enable */
 191 #define STOP2     0x08          /* enable 2 stop bits (0 = 1 stop) */
 192 #define PARITY_EN 0x04          /* enable parity (0 = no parity) */
 193 #define EVEN_PAR  0x02          /* even parity (0 = odd parity) */
 194 #define DATA8BIT  0x01          /* 8 bit data (0 = 7 bit data) */
 195
 196 #define SETBREAK  0x10          /* send break condition (must clear) */
 197 #define LOCALLOOP 0x08          /* local loopback set for test */
 198 #define SET_DTR   0x04          /* assert DTR */
 199 #define SET_RTS   0x02          /* assert RTS */
 200 #define TX_ENABLE 0x01          /* enable transmitter */
 201
 202 #define RTSFC_EN  0x40          /* RTS flow control enable */
 203 #define RXPROC_EN 0x20          /* receive processor enable */
 204 #define TRIG_NO   0x00          /* Rx FIFO trigger level 0 (no trigger) */
 205 #define TRIG_1    0x08          /* trigger level 1 char */
 206 #define TRIG_1_2  0x10          /* trigger level 1/2 */
 207 #define TRIG_7_8  0x18          /* trigger level 7/8 */
 208 #define TRIG_MASK 0x18          /* trigger level mask */
 209 #define SRCINT_EN 0x04          /* special Rx condition interrupt enable */
 210 #define RXINT_EN  0x02          /* Rx interrupt enable */
 211 #define MCINT_EN  0x01          /* modem change interrupt enable */
 212
 213 #define RXF_TRIG  0x20          /* Rx FIFO trigger level interrupt */
 214 #define TXFIFO_MT 0x10          /* Tx FIFO empty interrupt */
 215 #define SRC_INT   0x08          /* special receive condition interrupt */
 216 #define DELTA_CD  0x04          /* CD change interrupt */
 217 #define DELTA_CTS 0x02          /* CTS change interrupt */
 218 #define DELTA_DSR 0x01          /* DSR change interrupt */
 219
 220 #define REP1W2_EN 0x10          /* replace byte 1 with 2 bytes enable */
 221 #define IGN2_EN   0x08          /* ignore byte 2 enable */
 222 #define IGN1_EN   0x04          /* ignore byte 1 enable */
 223 #define COMP2_EN  0x02          /* compare byte 2 enable */
 224 #define COMP1_EN  0x01          /* compare byte 1 enable */
 225
 226 #define RESET_ALL 0x80          /* reset AIOP (all channels) */
 227 #define TXOVERIDE 0x40          /* Transmit software off override */
 228 #define RESETUART 0x20          /* reset channel's UART */
 229 #define RESTXFCNT 0x10          /* reset channel's Tx FIFO count register */
 230 #define RESRXFCNT 0x08          /* reset channel's Rx FIFO count register */
 231
 232 #define INTSTAT0  0x01          /* AIOP 0 interrupt status */
 233 #define INTSTAT1  0x02          /* AIOP 1 interrupt status */
 234 #define INTSTAT2  0x04          /* AIOP 2 interrupt status */
 235 #define INTSTAT3  0x08          /* AIOP 3 interrupt status */
 236
 237 #define INTR_EN   0x08          /* allow interrupts to host */
 238 #define INT_STROB 0x04          /* strobe and clear interrupt line (EOI) */
 239
 240 /**************************************************************************
 241  MUDBAC remapped for PCI
 242 **************************************************************************/
 243
 244 #define _CFG_INT_PCI  0x40
 245 #define _PCI_INT_FUNC 0x3A
 246
 247 #define PCI_STROB 0x2000        /* bit 13 of int aiop register */
 248 #define INTR_EN_PCI   0x0010    /* allow interrupts to host */
 249
 250 /*
 251  * Definitions for Universal PCI board registers
 252  */
 253 #define _PCI_9030_INT_CTRL      0x4c          /* Offsets from BAR1 */
 254 #define _PCI_9030_GPIO_CTRL     0x54
 255 #define PCI_INT_CTRL_AIOP       0x0001
 256 #define PCI_GPIO_CTRL_8PORT     0x4000
 257 #define _PCI_9030_RING_IND      0xc0          /* Offsets from BAR1 */
 258
 259 #define CHAN3_EN  0x08          /* enable AIOP 3 */
 260 #define CHAN2_EN  0x04          /* enable AIOP 2 */
 261 #define CHAN1_EN  0x02          /* enable AIOP 1 */
 262 #define CHAN0_EN  0x01          /* enable AIOP 0 */
 263 #define FREQ_DIS  0x00
 264 #define FREQ_274HZ 0x60
 265 #define FREQ_137HZ 0x50
 266 #define FREQ_69HZ  0x40
 267 #define FREQ_34HZ  0x30
 268 #define FREQ_17HZ  0x20
 269 #define FREQ_9HZ   0x10
 270 #define PERIODIC_ONLY 0x80      /* only PERIODIC interrupt */
 271
 272 #define CHANINT_EN 0x0100       /* flags to enable/disable channel ints */
 273
 274 #define RDATASIZE 72
 275 #define RREGDATASIZE 52
 276
 277 /*
 278  * AIOP interrupt bits for ISA/PCI boards and UPCI boards.
 279  */
 280 #define AIOP_INTR_BIT_0         0x0001
 281 #define AIOP_INTR_BIT_1         0x0002
 282 #define AIOP_INTR_BIT_2         0x0004
 283 #define AIOP_INTR_BIT_3         0x0008
 284
 285 #define AIOP_INTR_BITS ( \
 286         AIOP_INTR_BIT_0 \
 287         | AIOP_INTR_BIT_1 \
 288         | AIOP_INTR_BIT_2 \
 289         | AIOP_INTR_BIT_3)
 290
 291 #define UPCI_AIOP_INTR_BIT_0    0x0004
 292 #define UPCI_AIOP_INTR_BIT_1    0x0020
 293 #define UPCI_AIOP_INTR_BIT_2    0x0100
 294 #define UPCI_AIOP_INTR_BIT_3    0x0800
 295
 296 #define UPCI_AIOP_INTR_BITS ( \
 297         UPCI_AIOP_INTR_BIT_0 \
 298         | UPCI_AIOP_INTR_BIT_1 \
 299         | UPCI_AIOP_INTR_BIT_2 \
 300         | UPCI_AIOP_INTR_BIT_3)
 301
 302 /* Controller level information structure */
 303 typedef struct {
 304         int CtlID;
 305         int CtlNum;
 306         int BusType;
 307         int boardType;
 308         int isUPCI;
 309         WordIO_t PCIIO;
 310         WordIO_t PCIIO2;
 311         ByteIO_t MBaseIO;
 312         ByteIO_t MReg1IO;
 313         ByteIO_t MReg2IO;
 314         ByteIO_t MReg3IO;
 315         Byte_t MReg2;
 316         Byte_t MReg3;
 317         int NumAiop;
 318         int AltChanRingIndicator;
 319         ByteIO_t UPCIRingInd;
 320         WordIO_t AiopIO[AIOP_CTL_SIZE];
 321         ByteIO_t AiopIntChanIO[AIOP_CTL_SIZE];
 322         int AiopID[AIOP_CTL_SIZE];
 323         int AiopNumChan[AIOP_CTL_SIZE];
 324         Word_t *AiopIntrBits;
 325 } CONTROLLER_T;
 326
 327 typedef CONTROLLER_T CONTROLLER_t;
 328
 329 /* Channel level information structure */
 330 typedef struct {
 331         CONTROLLER_T *CtlP;
 332         int AiopNum;
 333         int ChanID;
 334         int ChanNum;
 335         int rtsToggle;
 336
 337         ByteIO_t Cmd;
 338         ByteIO_t IntChan;
 339         ByteIO_t IntMask;
 340         DWordIO_t IndexAddr;
 341         WordIO_t IndexData;
 342
 343         WordIO_t TxRxData;
 344         WordIO_t ChanStat;
 345         WordIO_t TxRxCount;
 346         ByteIO_t IntID;
 347
 348         Word_t TxFIFO;
 349         Word_t TxFIFOPtrs;
 350         Word_t RxFIFO;
 351         Word_t RxFIFOPtrs;
 352         Word_t TxPrioCnt;
 353         Word_t TxPrioPtr;
 354         Word_t TxPrioBuf;
 355
 356         Byte_t R[RREGDATASIZE];
 357
 358         Byte_t BaudDiv[4];
 359         Byte_t TxControl[4];
 360         Byte_t RxControl[4];
 361         Byte_t TxEnables[4];
 362         Byte_t TxCompare[4];
 363         Byte_t TxReplace1[4];
 364         Byte_t TxReplace2[4];
 365 } CHANNEL_T;
 366
 367 typedef CHANNEL_T CHANNEL_t;
 368 typedef CHANNEL_T *CHANPTR_T;
 369
 370 #define InterfaceModeRS232  0x00
 371 #define InterfaceModeRS422  0x08
 372 #define InterfaceModeRS485  0x10
 373 #define InterfaceModeRS232T 0x18
 374
 375 /***************************************************************************
 376 Function: sClrBreak
 377 Purpose:  Stop sending a transmit BREAK signal
 378 Call:     sClrBreak(ChP)
 379           CHANNEL_T *ChP; Ptr to channel structure
 380 */
 381 #define sClrBreak(ChP) \
 382 do { \
 383    (ChP)->TxControl[3] &= ~SETBREAK; \
 384    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 385 } while (0)
 386
 387 /***************************************************************************
 388 Function: sClrDTR
 389 Purpose:  Clr the DTR output
 390 Call:     sClrDTR(ChP)
 391           CHANNEL_T *ChP; Ptr to channel structure
 392 */
 393 #define sClrDTR(ChP) \
 394 do { \
 395    (ChP)->TxControl[3] &= ~SET_DTR; \
 396    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 397 } while (0)
 398
 399 /***************************************************************************
 400 Function: sClrRTS
 401 Purpose:  Clr the RTS output
 402 Call:     sClrRTS(ChP)
 403           CHANNEL_T *ChP; Ptr to channel structure
 404 */
 405 #define sClrRTS(ChP) \
 406 do { \
 407    if ((ChP)->rtsToggle) break; \
 408    (ChP)->TxControl[3] &= ~SET_RTS; \
 409    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 410 } while (0)
 411
 412 /***************************************************************************
 413 Function: sClrTxXOFF
 414 Purpose:  Clear any existing transmit software flow control off condition
 415 Call:     sClrTxXOFF(ChP)
 416           CHANNEL_T *ChP; Ptr to channel structure
 417 */
 418 #define sClrTxXOFF(ChP) \
 419 do { \
 420    sOutB((ChP)->Cmd,TXOVERIDE | (Byte_t)(ChP)->ChanNum); \
 421    sOutB((ChP)->Cmd,(Byte_t)(ChP)->ChanNum); \
 422 } while (0)
 423
 424 /***************************************************************************
 425 Function: sCtlNumToCtlPtr
 426 Purpose:  Convert a controller number to controller structure pointer
 427 Call:     sCtlNumToCtlPtr(CtlNum)
 428           int CtlNum; Controller number
 429 Return:   CONTROLLER_T *: Ptr to controller structure
 430 */
 431 #define sCtlNumToCtlPtr(CTLNUM) &sController[CTLNUM]
 432
 433 /***************************************************************************
 434 Function: sControllerEOI
 435 Purpose:  Strobe the MUDBAC's End Of Interrupt bit.
 436 Call:     sControllerEOI(CtlP)
 437           CONTROLLER_T *CtlP; Ptr to controller structure
 438 */
 439 #define sControllerEOI(CTLP) sOutB((CTLP)->MReg2IO,(CTLP)->MReg2 | INT_STROB)
 440
 441 /***************************************************************************
 442 Function: sPCIControllerEOI
 443 Purpose:  Strobe the PCI End Of Interrupt bit.
 444           For the UPCI boards, toggle the AIOP interrupt enable bit
 445           (this was taken from the Windows driver).
 446 Call:     sPCIControllerEOI(CtlP)
 447           CONTROLLER_T *CtlP; Ptr to controller structure
 448 */
 449 #define sPCIControllerEOI(CTLP) \
 450 do { \
 451     if ((CTLP)->isUPCI) { \
 452         Word_t w = sInW((CTLP)->PCIIO); \
 453         sOutW((CTLP)->PCIIO, (w ^ PCI_INT_CTRL_AIOP)); \
 454         sOutW((CTLP)->PCIIO, w); \
 455     } \
 456     else { \
 457         sOutW((CTLP)->PCIIO, PCI_STROB); \
 458     } \
 459 } while (0)
 460
 461 /***************************************************************************
 462 Function: sDisAiop
 463 Purpose:  Disable I/O access to an AIOP
 464 Call:     sDisAiop(CltP)
 465           CONTROLLER_T *CtlP; Ptr to controller structure
 466           int AiopNum; Number of AIOP on controller
 467 */
 468 #define sDisAiop(CTLP,AIOPNUM) \
 469 do { \
 470    (CTLP)->MReg3 &= sBitMapClrTbl[AIOPNUM]; \
 471    sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
 472 } while (0)
 473
 474 /***************************************************************************
 475 Function: sDisCTSFlowCtl
 476 Purpose:  Disable output flow control using CTS
 477 Call:     sDisCTSFlowCtl(ChP)
 478           CHANNEL_T *ChP; Ptr to channel structure
 479 */
 480 #define sDisCTSFlowCtl(ChP) \
 481 do { \
 482    (ChP)->TxControl[2] &= ~CTSFC_EN; \
 483    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 484 } while (0)
 485
 486 /***************************************************************************
 487 Function: sDisIXANY
 488 Purpose:  Disable IXANY Software Flow Control
 489 Call:     sDisIXANY(ChP)
 490           CHANNEL_T *ChP; Ptr to channel structure
 491 */
 492 #define sDisIXANY(ChP) \
 493 do { \
 494    (ChP)->R[0x0e] = 0x86; \
 495    out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
 496 } while (0)
 497
 498 /***************************************************************************
 499 Function: DisParity
 500 Purpose:  Disable parity
 501 Call:     sDisParity(ChP)
 502           CHANNEL_T *ChP; Ptr to channel structure
 503 Comments: Function sSetParity() can be used in place of functions sEnParity(),
 504           sDisParity(), sSetOddParity(), and sSetEvenParity().
 505 */
 506 #define sDisParity(ChP) \
 507 do { \
 508    (ChP)->TxControl[2] &= ~PARITY_EN; \
 509    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 510 } while (0)
 511
 512 /***************************************************************************
 513 Function: sDisRTSToggle
 514 Purpose:  Disable RTS toggle
 515 Call:     sDisRTSToggle(ChP)
 516           CHANNEL_T *ChP; Ptr to channel structure
 517 */
 518 #define sDisRTSToggle(ChP) \
 519 do { \
 520    (ChP)->TxControl[2] &= ~RTSTOG_EN; \
 521    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 522    (ChP)->rtsToggle = 0; \
 523 } while (0)
 524
 525 /***************************************************************************
 526 Function: sDisRxFIFO
 527 Purpose:  Disable Rx FIFO
 528 Call:     sDisRxFIFO(ChP)
 529           CHANNEL_T *ChP; Ptr to channel structure
 530 */
 531 #define sDisRxFIFO(ChP) \
 532 do { \
 533    (ChP)->R[0x32] = 0x0a; \
 534    out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
 535 } while (0)
 536
 537 /***************************************************************************
 538 Function: sDisRxStatusMode
 539 Purpose:  Disable the Rx status mode
 540 Call:     sDisRxStatusMode(ChP)
 541           CHANNEL_T *ChP; Ptr to channel structure
 542 Comments: This takes the channel out of the receive status mode.  All
 543           subsequent reads of receive data using sReadRxWord() will return
 544           two data bytes.
 545 */
 546 #define sDisRxStatusMode(ChP) sOutW((ChP)->ChanStat,0)
 547
 548 /***************************************************************************
 549 Function: sDisTransmit
 550 Purpose:  Disable transmit
 551 Call:     sDisTransmit(ChP)
 552           CHANNEL_T *ChP; Ptr to channel structure
 553           This disables movement of Tx data from the Tx FIFO into the 1 byte
 554           Tx buffer.  Therefore there could be up to a 2 byte latency
 555           between the time sDisTransmit() is called and the transmit buffer
 556           and transmit shift register going completely empty.
 557 */
 558 #define sDisTransmit(ChP) \
 559 do { \
 560    (ChP)->TxControl[3] &= ~TX_ENABLE; \
 561    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 562 } while (0)
 563
 564 /***************************************************************************
 565 Function: sDisTxSoftFlowCtl
 566 Purpose:  Disable Tx Software Flow Control
 567 Call:     sDisTxSoftFlowCtl(ChP)
 568           CHANNEL_T *ChP; Ptr to channel structure
 569 */
 570 #define sDisTxSoftFlowCtl(ChP) \
 571 do { \
 572    (ChP)->R[0x06] = 0x8a; \
 573    out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
 574 } while (0)
 575
 576 /***************************************************************************
 577 Function: sEnAiop
 578 Purpose:  Enable I/O access to an AIOP
 579 Call:     sEnAiop(CltP)
 580           CONTROLLER_T *CtlP; Ptr to controller structure
 581           int AiopNum; Number of AIOP on controller
 582 */
 583 #define sEnAiop(CTLP,AIOPNUM) \
 584 do { \
 585    (CTLP)->MReg3 |= sBitMapSetTbl[AIOPNUM]; \
 586    sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
 587 } while (0)
 588
 589 /***************************************************************************
 590 Function: sEnCTSFlowCtl
 591 Purpose:  Enable output flow control using CTS
 592 Call:     sEnCTSFlowCtl(ChP)
 593           CHANNEL_T *ChP; Ptr to channel structure
 594 */
 595 #define sEnCTSFlowCtl(ChP) \
 596 do { \
 597    (ChP)->TxControl[2] |= CTSFC_EN; \
 598    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 599 } while (0)
 600
 601 /***************************************************************************
 602 Function: sEnIXANY
 603 Purpose:  Enable IXANY Software Flow Control
 604 Call:     sEnIXANY(ChP)
 605           CHANNEL_T *ChP; Ptr to channel structure
 606 */
 607 #define sEnIXANY(ChP) \
 608 do { \
 609    (ChP)->R[0x0e] = 0x21; \
 610    out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
 611 } while (0)
 612
 613 /***************************************************************************
 614 Function: EnParity
 615 Purpose:  Enable parity
 616 Call:     sEnParity(ChP)
 617           CHANNEL_T *ChP; Ptr to channel structure
 618 Comments: Function sSetParity() can be used in place of functions sEnParity(),
 619           sDisParity(), sSetOddParity(), and sSetEvenParity().
 620
 621 Warnings: Before enabling parity odd or even parity should be chosen using
 622           functions sSetOddParity() or sSetEvenParity().
 623 */
 624 #define sEnParity(ChP) \
 625 do { \
 626    (ChP)->TxControl[2] |= PARITY_EN; \
 627    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 628 } while (0)
 629
 630 /***************************************************************************
 631 Function: sEnRTSToggle
 632 Purpose:  Enable RTS toggle
 633 Call:     sEnRTSToggle(ChP)
 634           CHANNEL_T *ChP; Ptr to channel structure
 635 Comments: This function will disable RTS flow control and clear the RTS
 636           line to allow operation of RTS toggle.
 637 */
 638 #define sEnRTSToggle(ChP) \
 639 do { \
 640    (ChP)->RxControl[2] &= ~RTSFC_EN; \
 641    out32((ChP)->IndexAddr,(ChP)->RxControl); \
 642    (ChP)->TxControl[2] |= RTSTOG_EN; \
 643    (ChP)->TxControl[3] &= ~SET_RTS; \
 644    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 645    (ChP)->rtsToggle = 1; \
 646 } while (0)
 647
 648 /***************************************************************************
 649 Function: sEnRxFIFO
 650 Purpose:  Enable Rx FIFO
 651 Call:     sEnRxFIFO(ChP)
 652           CHANNEL_T *ChP; Ptr to channel structure
 653 */
 654 #define sEnRxFIFO(ChP) \
 655 do { \
 656    (ChP)->R[0x32] = 0x08; \
 657    out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
 658 } while (0)
 659
 660 /***************************************************************************
 661 Function: sEnRxProcessor
 662 Purpose:  Enable the receive processor
 663 Call:     sEnRxProcessor(ChP)
 664           CHANNEL_T *ChP; Ptr to channel structure
 665 Comments: This function is used to start the receive processor.  When
 666           the channel is in the reset state the receive processor is not
 667           running.  This is done to prevent the receive processor from
 668           executing invalid microcode instructions prior to the
 669           downloading of the microcode.
 670
 671 Warnings: This function must be called after valid microcode has been
 672           downloaded to the AIOP, and it must not be called before the
 673           microcode has been downloaded.
 674 */
 675 #define sEnRxProcessor(ChP) \
 676 do { \
 677    (ChP)->RxControl[2] |= RXPROC_EN; \
 678    out32((ChP)->IndexAddr,(ChP)->RxControl); \
 679 } while (0)
 680
 681 /***************************************************************************
 682 Function: sEnRxStatusMode
 683 Purpose:  Enable the Rx status mode
 684 Call:     sEnRxStatusMode(ChP)
 685           CHANNEL_T *ChP; Ptr to channel structure
 686 Comments: This places the channel in the receive status mode.  All subsequent
 687           reads of receive data using sReadRxWord() will return a data byte
 688           in the low word and a status byte in the high word.
 689
 690 */
 691 #define sEnRxStatusMode(ChP) sOutW((ChP)->ChanStat,STATMODE)
 692
 693 /***************************************************************************
 694 Function: sEnTransmit
 695 Purpose:  Enable transmit
 696 Call:     sEnTransmit(ChP)
 697           CHANNEL_T *ChP; Ptr to channel structure
 698 */
 699 #define sEnTransmit(ChP) \
 700 do { \
 701    (ChP)->TxControl[3] |= TX_ENABLE; \
 702    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 703 } while (0)
 704
 705 /***************************************************************************
 706 Function: sEnTxSoftFlowCtl
 707 Purpose:  Enable Tx Software Flow Control
 708 Call:     sEnTxSoftFlowCtl(ChP)
 709           CHANNEL_T *ChP; Ptr to channel structure
 710 */
 711 #define sEnTxSoftFlowCtl(ChP) \
 712 do { \
 713    (ChP)->R[0x06] = 0xc5; \
 714    out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
 715 } while (0)
 716
 717 /***************************************************************************
 718 Function: sGetAiopIntStatus
 719 Purpose:  Get the AIOP interrupt status
 720 Call:     sGetAiopIntStatus(CtlP,AiopNum)
 721           CONTROLLER_T *CtlP; Ptr to controller structure
 722           int AiopNum; AIOP number
 723 Return:   Byte_t: The AIOP interrupt status.  Bits 0 through 7
 724                          represent channels 0 through 7 respectively.  If a
 725                          bit is set that channel is interrupting.
 726 */
 727 #define sGetAiopIntStatus(CTLP,AIOPNUM) sInB((CTLP)->AiopIntChanIO[AIOPNUM])
 728
 729 /***************************************************************************
 730 Function: sGetAiopNumChan
 731 Purpose:  Get the number of channels supported by an AIOP
 732 Call:     sGetAiopNumChan(CtlP,AiopNum)
 733           CONTROLLER_T *CtlP; Ptr to controller structure
 734           int AiopNum; AIOP number
 735 Return:   int: The number of channels supported by the AIOP
 736 */
 737 #define sGetAiopNumChan(CTLP,AIOPNUM) (CTLP)->AiopNumChan[AIOPNUM]
 738
 739 /***************************************************************************
 740 Function: sGetChanIntID
 741 Purpose:  Get a channel's interrupt identification byte
 742 Call:     sGetChanIntID(ChP)
 743           CHANNEL_T *ChP; Ptr to channel structure
 744 Return:   Byte_t: The channel interrupt ID.  Can be any
 745              combination of the following flags:
 746                 RXF_TRIG:     Rx FIFO trigger level interrupt
 747                 TXFIFO_MT:    Tx FIFO empty interrupt
 748                 SRC_INT:      Special receive condition interrupt
 749                 DELTA_CD:     CD change interrupt
 750                 DELTA_CTS:    CTS change interrupt
 751                 DELTA_DSR:    DSR change interrupt
 752 */
 753 #define sGetChanIntID(ChP) (sInB((ChP)->IntID) & (RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR))
 754
 755 /***************************************************************************
 756 Function: sGetChanNum
 757 Purpose:  Get the number of a channel within an AIOP
 758 Call:     sGetChanNum(ChP)
 759           CHANNEL_T *ChP; Ptr to channel structure
 760 Return:   int: Channel number within AIOP, or NULLCHAN if channel does
 761                not exist.
 762 */
 763 #define sGetChanNum(ChP) (ChP)->ChanNum
 764
 765 /***************************************************************************
 766 Function: sGetChanStatus
 767 Purpose:  Get the channel status
 768 Call:     sGetChanStatus(ChP)
 769           CHANNEL_T *ChP; Ptr to channel structure
 770 Return:   Word_t: The channel status.  Can be any combination of
 771              the following flags:
 772                 LOW BYTE FLAGS
 773                 CTS_ACT:      CTS input asserted
 774                 DSR_ACT:      DSR input asserted
 775                 CD_ACT:       CD input asserted
 776                 TXFIFOMT:     Tx FIFO is empty
 777                 TXSHRMT:      Tx shift register is empty
 778                 RDA:          Rx data available
 779
 780                 HIGH BYTE FLAGS
 781                 STATMODE:     status mode enable bit
 782                 RXFOVERFL:    receive FIFO overflow
 783                 RX2MATCH:     receive compare byte 2 match
 784                 RX1MATCH:     receive compare byte 1 match
 785                 RXBREAK:      received BREAK
 786                 RXFRAME:      received framing error
 787                 RXPARITY:     received parity error
 788 Warnings: This function will clear the high byte flags in the Channel
 789           Status Register.
 790 */
 791 #define sGetChanStatus(ChP) sInW((ChP)->ChanStat)
 792
 793 /***************************************************************************
 794 Function: sGetChanStatusLo
 795 Purpose:  Get the low byte only of the channel status
 796 Call:     sGetChanStatusLo(ChP)
 797           CHANNEL_T *ChP; Ptr to channel structure
 798 Return:   Byte_t: The channel status low byte.  Can be any combination
 799              of the following flags:
 800                 CTS_ACT:      CTS input asserted
 801                 DSR_ACT:      DSR input asserted
 802                 CD_ACT:       CD input asserted
 803                 TXFIFOMT:     Tx FIFO is empty
 804                 TXSHRMT:      Tx shift register is empty
 805                 RDA:          Rx data available
 806 */
 807 #define sGetChanStatusLo(ChP) sInB((ByteIO_t)(ChP)->ChanStat)
 808
 809 /**********************************************************************
 810  * Get RI status of channel
 811  * Defined as a function in rocket.c   -aes
 812  */
 813 #if 0
 814 #define sGetChanRI(ChP) ((ChP)->CtlP->AltChanRingIndicator ? \
 815                           (sInB((ByteIO_t)((ChP)->ChanStat+8)) & DSR_ACT) : \
 816                             (((ChP)->CtlP->boardType == ROCKET_TYPE_PC104) ? \
 817                                (!(sInB((ChP)->CtlP->AiopIO[3]) & sBitMapSetTbl[(ChP)->ChanNum])) : \
 818                              0))
 819 #endif
 820
 821 /***************************************************************************
 822 Function: sGetControllerIntStatus
 823 Purpose:  Get the controller interrupt status
 824 Call:     sGetControllerIntStatus(CtlP)
 825           CONTROLLER_T *CtlP; Ptr to controller structure
 826 Return:   Byte_t: The controller interrupt status in the lower 4
 827                          bits.  Bits 0 through 3 represent AIOP's 0
 828                          through 3 respectively.  If a bit is set that
 829                          AIOP is interrupting.  Bits 4 through 7 will
 830                          always be cleared.
 831 */
 832 #define sGetControllerIntStatus(CTLP) (sInB((CTLP)->MReg1IO) & 0x0f)
 833
 834 /***************************************************************************
 835 Function: sPCIGetControllerIntStatus
 836 Purpose:  Get the controller interrupt status
 837 Call:     sPCIGetControllerIntStatus(CtlP)
 838           CONTROLLER_T *CtlP; Ptr to controller structure
 839 Return:   unsigned char: The controller interrupt status in the lower 4
 840                          bits and bit 4.  Bits 0 through 3 represent AIOP's 0
 841                          through 3 respectively. Bit 4 is set if the int
 842                          was generated from periodic. If a bit is set the
 843                          AIOP is interrupting.
 844 */
 845 #define sPCIGetControllerIntStatus(CTLP) \
 846         ((CTLP)->isUPCI ? \
 847           (sInW((CTLP)->PCIIO2) & UPCI_AIOP_INTR_BITS) : \
 848           ((sInW((CTLP)->PCIIO) >> 8) & AIOP_INTR_BITS))
 849
 850 /***************************************************************************
 851
 852 Function: sGetRxCnt
 853 Purpose:  Get the number of data bytes in the Rx FIFO
 854 Call:     sGetRxCnt(ChP)
 855           CHANNEL_T *ChP; Ptr to channel structure
 856 Return:   int: The number of data bytes in the Rx FIFO.
 857 Comments: Byte read of count register is required to obtain Rx count.
 858
 859 */
 860 #define sGetRxCnt(ChP) sInW((ChP)->TxRxCount)
 861
 862 /***************************************************************************
 863 Function: sGetTxCnt
 864 Purpose:  Get the number of data bytes in the Tx FIFO
 865 Call:     sGetTxCnt(ChP)
 866           CHANNEL_T *ChP; Ptr to channel structure
 867 Return:   Byte_t: The number of data bytes in the Tx FIFO.
 868 Comments: Byte read of count register is required to obtain Tx count.
 869
 870 */
 871 #define sGetTxCnt(ChP) sInB((ByteIO_t)(ChP)->TxRxCount)
 872
 873 /*****************************************************************************
 874 Function: sGetTxRxDataIO
 875 Purpose:  Get the I/O address of a channel's TxRx Data register
 876 Call:     sGetTxRxDataIO(ChP)
 877           CHANNEL_T *ChP; Ptr to channel structure
 878 Return:   WordIO_t: I/O address of a channel's TxRx Data register
 879 */
 880 #define sGetTxRxDataIO(ChP) (ChP)->TxRxData
 881
 882 /***************************************************************************
 883 Function: sInitChanDefaults
 884 Purpose:  Initialize a channel structure to it's default state.
 885 Call:     sInitChanDefaults(ChP)
 886           CHANNEL_T *ChP; Ptr to the channel structure
 887 Comments: This function must be called once for every channel structure
 888           that exists before any other SSCI calls can be made.
 889
 890 */
 891 #define sInitChanDefaults(ChP) \
 892 do { \
 893    (ChP)->CtlP = NULLCTLPTR; \
 894    (ChP)->AiopNum = NULLAIOP; \
 895    (ChP)->ChanID = AIOPID_NULL; \
 896    (ChP)->ChanNum = NULLCHAN; \
 897 } while (0)
 898
 899 /***************************************************************************
 900 Function: sResetAiopByNum
 901 Purpose:  Reset the AIOP by number
 902 Call:     sResetAiopByNum(CTLP,AIOPNUM)
 903         CONTROLLER_T CTLP; Ptr to controller structure
 904         AIOPNUM; AIOP index
 905 */
 906 #define sResetAiopByNum(CTLP,AIOPNUM) \
 907 do { \
 908    sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,RESET_ALL); \
 909    sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,0x0); \
 910 } while (0)
 911
 912 /***************************************************************************
 913 Function: sSendBreak
 914 Purpose:  Send a transmit BREAK signal
 915 Call:     sSendBreak(ChP)
 916           CHANNEL_T *ChP; Ptr to channel structure
 917 */
 918 #define sSendBreak(ChP) \
 919 do { \
 920    (ChP)->TxControl[3] |= SETBREAK; \
 921    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 922 } while (0)
 923
 924 /***************************************************************************
 925 Function: sSetBaud
 926 Purpose:  Set baud rate
 927 Call:     sSetBaud(ChP,Divisor)
 928           CHANNEL_T *ChP; Ptr to channel structure
 929           Word_t Divisor; 16 bit baud rate divisor for channel
 930 */
 931 #define sSetBaud(ChP,DIVISOR) \
 932 do { \
 933    (ChP)->BaudDiv[2] = (Byte_t)(DIVISOR); \
 934    (ChP)->BaudDiv[3] = (Byte_t)((DIVISOR) >> 8); \
 935    out32((ChP)->IndexAddr,(ChP)->BaudDiv); \
 936 } while (0)
 937
 938 /***************************************************************************
 939 Function: sSetData7
 940 Purpose:  Set data bits to 7
 941 Call:     sSetData7(ChP)
 942           CHANNEL_T *ChP; Ptr to channel structure
 943 */
 944 #define sSetData7(ChP) \
 945 do { \
 946    (ChP)->TxControl[2] &= ~DATA8BIT; \
 947    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 948 } while (0)
 949
 950 /***************************************************************************
 951 Function: sSetData8
 952 Purpose:  Set data bits to 8
 953 Call:     sSetData8(ChP)
 954           CHANNEL_T *ChP; Ptr to channel structure
 955 */
 956 #define sSetData8(ChP) \
 957 do { \
 958    (ChP)->TxControl[2] |= DATA8BIT; \
 959    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 960 } while (0)
 961
 962 /***************************************************************************
 963 Function: sSetDTR
 964 Purpose:  Set the DTR output
 965 Call:     sSetDTR(ChP)
 966           CHANNEL_T *ChP; Ptr to channel structure
 967 */
 968 #define sSetDTR(ChP) \
 969 do { \
 970    (ChP)->TxControl[3] |= SET_DTR; \
 971    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 972 } while (0)
 973
 974 /***************************************************************************
 975 Function: sSetEvenParity
 976 Purpose:  Set even parity
 977 Call:     sSetEvenParity(ChP)
 978           CHANNEL_T *ChP; Ptr to channel structure
 979 Comments: Function sSetParity() can be used in place of functions sEnParity(),
 980           sDisParity(), sSetOddParity(), and sSetEvenParity().
 981
 982 Warnings: This function has no effect unless parity is enabled with function
 983           sEnParity().
 984 */
 985 #define sSetEvenParity(ChP) \
 986 do { \
 987    (ChP)->TxControl[2] |= EVEN_PAR; \
 988    out32((ChP)->IndexAddr,(ChP)->TxControl); \
 989 } while (0)
 990
 991 /***************************************************************************
 992 Function: sSetOddParity
 993 Purpose:  Set odd parity
 994 Call:     sSetOddParity(ChP)
 995           CHANNEL_T *ChP; Ptr to channel structure
 996 Comments: Function sSetParity() can be used in place of functions sEnParity(),
 997           sDisParity(), sSetOddParity(), and sSetEvenParity().
 998
 999 Warnings: This function has no effect unless parity is enabled with function
1000           sEnParity().
1001 */
1002 #define sSetOddParity(ChP) \
1003 do { \
1004    (ChP)->TxControl[2] &= ~EVEN_PAR; \
1005    out32((ChP)->IndexAddr,(ChP)->TxControl); \
1006 } while (0)
1007
1008 /***************************************************************************
1009 Function: sSetRTS
1010 Purpose:  Set the RTS output
1011 Call:     sSetRTS(ChP)
1012           CHANNEL_T *ChP; Ptr to channel structure
1013 */
1014 #define sSetRTS(ChP) \
1015 do { \
1016    if ((ChP)->rtsToggle) break; \
1017    (ChP)->TxControl[3] |= SET_RTS; \
1018    out32((ChP)->IndexAddr,(ChP)->TxControl); \
1019 } while (0)
1020
1021 /***************************************************************************
1022 Function: sSetRxTrigger
1023 Purpose:  Set the Rx FIFO trigger level
1024 Call:     sSetRxProcessor(ChP,Level)
1025           CHANNEL_T *ChP; Ptr to channel structure
1026           Byte_t Level; Number of characters in Rx FIFO at which the
1027              interrupt will be generated.  Can be any of the following flags:
1028
1029              TRIG_NO:   no trigger
1030              TRIG_1:    1 character in FIFO
1031              TRIG_1_2:  FIFO 1/2 full
1032              TRIG_7_8:  FIFO 7/8 full
1033 Comments: An interrupt will be generated when the trigger level is reached
1034           only if function sEnInterrupt() has been called with flag
1035           RXINT_EN set.  The RXF_TRIG flag in the Interrupt Idenfification
1036           register will be set whenever the trigger level is reached
1037           regardless of the setting of RXINT_EN.
1038
1039 */
1040 #define sSetRxTrigger(ChP,LEVEL) \
1041 do { \
1042    (ChP)->RxControl[2] &= ~TRIG_MASK; \
1043    (ChP)->RxControl[2] |= LEVEL; \
1044    out32((ChP)->IndexAddr,(ChP)->RxControl); \
1045 } while (0)
1046
1047 /***************************************************************************
1048 Function: sSetStop1
1049 Purpose:  Set stop bits to 1
1050 Call:     sSetStop1(ChP)
1051           CHANNEL_T *ChP; Ptr to channel structure
1052 */
1053 #define sSetStop1(ChP) \
1054 do { \
1055    (ChP)->TxControl[2] &= ~STOP2; \
1056    out32((ChP)->IndexAddr,(ChP)->TxControl); \
1057 } while (0)
1058
1059 /***************************************************************************
1060 Function: sSetStop2
1061 Purpose:  Set stop bits to 2
1062 Call:     sSetStop2(ChP)
1063           CHANNEL_T *ChP; Ptr to channel structure
1064 */
1065 #define sSetStop2(ChP) \
1066 do { \
1067    (ChP)->TxControl[2] |= STOP2; \
1068    out32((ChP)->IndexAddr,(ChP)->TxControl); \
1069 } while (0)
1070
1071 /***************************************************************************
1072 Function: sSetTxXOFFChar
1073 Purpose:  Set the Tx XOFF flow control character
1074 Call:     sSetTxXOFFChar(ChP,Ch)
1075           CHANNEL_T *ChP; Ptr to channel structure
1076           Byte_t Ch; The value to set the Tx XOFF character to
1077 */
1078 #define sSetTxXOFFChar(ChP,CH) \
1079 do { \
1080    (ChP)->R[0x07] = (CH); \
1081    out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
1082 } while (0)
1083
1084 /***************************************************************************
1085 Function: sSetTxXONChar
1086 Purpose:  Set the Tx XON flow control character
1087 Call:     sSetTxXONChar(ChP,Ch)
1088           CHANNEL_T *ChP; Ptr to channel structure
1089           Byte_t Ch; The value to set the Tx XON character to
1090 */
1091 #define sSetTxXONChar(ChP,CH) \
1092 do { \
1093    (ChP)->R[0x0b] = (CH); \
1094    out32((ChP)->IndexAddr,&(ChP)->R[0x08]); \
1095 } while (0)
1096
1097 /***************************************************************************
1098 Function: sStartRxProcessor
1099 Purpose:  Start a channel's receive processor
1100 Call:     sStartRxProcessor(ChP)
1101           CHANNEL_T *ChP; Ptr to channel structure
1102 Comments: This function is used to start a Rx processor after it was
1103           stopped with sStopRxProcessor() or sStopSWInFlowCtl().  It
1104           will restart both the Rx processor and software input flow control.
1105
1106 */
1107 #define sStartRxProcessor(ChP) out32((ChP)->IndexAddr,&(ChP)->R[0])
1108
1109 /***************************************************************************
1110 Function: sWriteTxByte
1111 Purpose:  Write a transmit data byte to a channel.
1112           ByteIO_t io: Channel transmit register I/O address.  This can
1113                            be obtained with sGetTxRxDataIO().
1114           Byte_t Data; The transmit data byte.
1115 Warnings: This function writes the data byte without checking to see if
1116           sMaxTxSize is exceeded in the Tx FIFO.
1117 */
1118 #define sWriteTxByte(IO,DATA) sOutB(IO,DATA)
1119
1120 /*
1121  * Begin Linux specific definitions for the Rocketport driver
1122  *
1123  * This code is Copyright Theodore Ts'o, 1995-1997
1124  */
1125
1126 struct r_port {
1127         int magic;
1128         struct tty_port port;
1129         int line;
1130         int flags;              /* Don't yet match the ASY_ flags!! */
1131         unsigned int board:3;
1132         unsigned int aiop:2;
1133         unsigned int chan:3;
1134         CONTROLLER_t *ctlp;
1135         CHANNEL_t channel;
1136         int intmask;
1137         int xmit_fifo_room;     /* room in xmit fifo */
1138         unsigned char *xmit_buf;
1139         int xmit_head;
1140         int xmit_tail;
1141         int xmit_cnt;
1142         int cd_status;
1143         int ignore_status_mask;
1144         int read_status_mask;
1145         int cps;
1146
1147         spinlock_t slock;
1148         struct mutex write_mtx;
1149 };
1150
1151 #define RPORT_MAGIC 0x525001
1152
1153 #define NUM_BOARDS 8
1154 #define MAX_RP_PORTS (32*NUM_BOARDS)
1155
1156 /*
1157  * The size of the xmit buffer is 1 page, or 4096 bytes
1158  */
1159 #define XMIT_BUF_SIZE 4096
1160
1161 /* number of characters left in xmit buffer before we ask for more */
1162 #define WAKEUP_CHARS 256
1163
1164 /*
1165  * Assigned major numbers for the Comtrol Rocketport
1166  */
1167 #define TTY_ROCKET_MAJOR        46
1168 #define CUA_ROCKET_MAJOR        47
1169
1170 #ifdef PCI_VENDOR_ID_RP
1171 #undef PCI_VENDOR_ID_RP
1172 #undef PCI_DEVICE_ID_RP8OCTA
1173 #undef PCI_DEVICE_ID_RP8INTF
1174 #undef PCI_DEVICE_ID_RP16INTF
1175 #undef PCI_DEVICE_ID_RP32INTF
1176 #undef PCI_DEVICE_ID_URP8OCTA
1177 #undef PCI_DEVICE_ID_URP8INTF
1178 #undef PCI_DEVICE_ID_URP16INTF
1179 #undef PCI_DEVICE_ID_CRP16INTF
1180 #undef PCI_DEVICE_ID_URP32INTF
1181 #endif
1182
1183 /*  Comtrol PCI Vendor ID */
1184 #define PCI_VENDOR_ID_RP                0x11fe
1185
1186 /*  Comtrol Device ID's */
1187 #define PCI_DEVICE_ID_RP32INTF          0x0001  /* Rocketport 32 port w/external I/F     */
1188 #define PCI_DEVICE_ID_RP8INTF           0x0002  /* Rocketport 8 port w/external I/F      */
1189 #define PCI_DEVICE_ID_RP16INTF          0x0003  /* Rocketport 16 port w/external I/F     */
1190 #define PCI_DEVICE_ID_RP4QUAD           0x0004  /* Rocketport 4 port w/quad cable        */
1191 #define PCI_DEVICE_ID_RP8OCTA           0x0005  /* Rocketport 8 port w/octa cable        */
1192 #define PCI_DEVICE_ID_RP8J              0x0006  /* Rocketport 8 port w/RJ11 connectors   */
1193 #define PCI_DEVICE_ID_RP4J              0x0007  /* Rocketport 4 port w/RJ11 connectors   */
1194 #define PCI_DEVICE_ID_RP8SNI            0x0008  /* Rocketport 8 port w/ DB78 SNI (Siemens) connector */
1195 #define PCI_DEVICE_ID_RP16SNI           0x0009  /* Rocketport 16 port w/ DB78 SNI (Siemens) connector   */
1196 #define PCI_DEVICE_ID_RPP4              0x000A  /* Rocketport Plus 4 port                */
1197 #define PCI_DEVICE_ID_RPP8              0x000B  /* Rocketport Plus 8 port                */
1198 #define PCI_DEVICE_ID_RP6M              0x000C  /* RocketModem 6 port                    */
1199 #define PCI_DEVICE_ID_RP4M              0x000D  /* RocketModem 4 port                    */
1200 #define PCI_DEVICE_ID_RP2_232           0x000E  /* Rocketport Plus 2 port RS232          */
1201 #define PCI_DEVICE_ID_RP2_422           0x000F  /* Rocketport Plus 2 port RS422          */
1202
1203 /* Universal PCI boards  */
1204 #define PCI_DEVICE_ID_URP32INTF         0x0801  /* Rocketport UPCI 32 port w/external I/F */
1205 #define PCI_DEVICE_ID_URP8INTF          0x0802  /* Rocketport UPCI 8 port w/external I/F  */
1206 #define PCI_DEVICE_ID_URP16INTF         0x0803  /* Rocketport UPCI 16 port w/external I/F */
1207 #define PCI_DEVICE_ID_URP8OCTA          0x0805  /* Rocketport UPCI 8 port w/octa cable    */
1208 #define PCI_DEVICE_ID_UPCI_RM3_8PORT    0x080C  /* Rocketmodem III 8 port                 */
1209 #define PCI_DEVICE_ID_UPCI_RM3_4PORT    0x080D  /* Rocketmodem III 4 port                 */
1210
1211 /* Compact PCI device */
1212 #define PCI_DEVICE_ID_CRP16INTF         0x0903  /* Rocketport Compact PCI 16 port w/external I/F */
1213