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rocket_int.h --- internal header file for rocket.c * * Written by Theodore Ts'o, Copyright 1997. * * Portions of this file are.... * * Copyright 1994 Comtrol Corporation. All Rights Reserved. * * The following source code is subject to Comtrol Corporation's * Developer's License Agreement. * * This source code is protected by United States copyright law and * international copyright treaties. * * This source code may only be used to develop software products that * will operate with Comtrol brand hardware. * * You may not reproduce nor distribute this source code in its original * form but must produce a derivative work which includes portions of * this source code only. * * The portions of this source code which you use in your derivative * work must bear Comtrol's copyright notice: * * Copyright 1994 Comtrol Corporation. * */ /* * Begin Comtrol-provided headers, et. al. */ /* user definitions for Rocket Toolkit The following typedefs and defines must be established depending on the platform the toolkit is being used with. */ /************************************************************ The following sets up the world for use with Linux ************************************************************/ #include <asm/io.h> typedef unsigned char Byte_t; typedef unsigned int ByteIO_t; typedef unsigned int Word_t; typedef unsigned int WordIO_t; typedef unsigned long DWord_t; typedef unsigned int DWordIO_t; #define sOutB(a, b) outb_p(b, a) #define sOutW(a, b) outw_p(b, a) #define sOutDW(a, b) outl_p(b, a) #define sInB(a) (inb_p(a)) #define sInW(a) (inw_p(a)) #define sOutStrW(port, addr, count) outsw(port, addr, count) #define sInStrW(port, addr, count) insw(port, addr, count) #define CTL_SIZE 4 #define AIOP_CTL_SIZE 4 #define CHAN_AIOP_SIZE 8 #define MAX_PORTS_PER_AIOP 8 #define MAX_AIOPS_PER_BOARD 4 #define MAX_PORTS_PER_BOARD 32 /* Bus type ID */ #define isISA 0 #define isPCI 1 #define isMC 2 /* Controller ID numbers */ #define CTLID_NULL -1 /* no controller exists */ #define CTLID_0001 0x0001 /* controller release 1 */ /* AIOP ID numbers, identifies AIOP type implementing channel */ #define AIOPID_NULL -1 /* no AIOP or channel exists */ #define AIOPID_0001 0x0001 /* AIOP release 1 */ #define NULLDEV -1 /* identifies non-existant device */ #define NULLCTL -1 /* identifies non-existant controller */ #define NULLCTLPTR (CONTROLLER_T *)0 /* identifies non-existant controller */ #define NULLAIOP -1 /* identifies non-existant AIOP */ #define NULLCHAN -1 /* identifies non-existant channel */ /************************************************************************ Global Register Offsets - Direct Access - Fixed values ************************************************************************/ #define _CMD_REG 0x38 /* Command Register 8 Write */ #define _INT_CHAN 0x39 /* Interrupt Channel Register 8 Read */ #define _INT_MASK 0x3A /* Interrupt Mask Register 8 Read / Write */ #define _UNUSED 0x3B /* Unused 8 */ #define _INDX_ADDR 0x3C /* Index Register Address 16 Write */ #define _INDX_DATA 0x3E /* Index Register Data 8/16 Read / Write */ /************************************************************************ Channel Register Offsets for 1st channel in AIOP - Direct Access ************************************************************************/ #define _TD0 0x00 /* Transmit Data 16 Write */ #define _RD0 0x00 /* Receive Data 16 Read */ #define _CHN_STAT0 0x20 /* Channel Status 8/16 Read / Write */ #define _FIFO_CNT0 0x10 /* Transmit/Receive FIFO Count 16 Read */ #define _INT_ID0 0x30 /* Interrupt Identification 8 Read */ /************************************************************************ Tx Control Register Offsets - Indexed - External - Fixed ************************************************************************/ #define _TX_ENBLS 0x980 /* Tx Processor Enables Register 8 Read / Write */ #define _TXCMP1 0x988 /* Transmit Compare Value #1 8 Read / Write */ #define _TXCMP2 0x989 /* Transmit Compare Value #2 8 Read / Write */ #define _TXREP1B1 0x98A /* Tx Replace Value #1 - Byte 1 8 Read / Write */ #define _TXREP1B2 0x98B /* Tx Replace Value #1 - Byte 2 8 Read / Write */ #define _TXREP2 0x98C /* Transmit Replace Value #2 8 Read / Write */ /************************************************************************ Memory Controller Register Offsets - Indexed - External - Fixed ************************************************************************/ #define _RX_FIFO 0x000 /* Rx FIFO */ #define _TX_FIFO 0x800 /* Tx FIFO */ #define _RXF_OUTP 0x990 /* Rx FIFO OUT pointer 16 Read / Write */ #define _RXF_INP 0x992 /* Rx FIFO IN pointer 16 Read / Write */ #define _TXF_OUTP 0x994 /* Tx FIFO OUT pointer 8 Read / Write */ #define _TXF_INP 0x995 /* Tx FIFO IN pointer 8 Read / Write */ #define _TXP_CNT 0x996 /* Tx Priority Count 8 Read / Write */ #define _TXP_PNTR 0x997 /* Tx Priority Pointer 8 Read / Write */ #define PRI_PEND 0x80 /* Priority data pending (bit7, Tx pri cnt) */ #define TXFIFO_SIZE 255 /* size of Tx FIFO */ #define RXFIFO_SIZE 1023 /* size of Rx FIFO */ /************************************************************************ Tx Priority Buffer - Indexed - External - Fixed ************************************************************************/ #define _TXP_BUF 0x9C0 /* Tx Priority Buffer 32 Bytes Read / Write */ #define TXP_SIZE 0x20 /* 32 bytes */ /************************************************************************ Channel Register Offsets - Indexed - Internal - Fixed ************************************************************************/ #define _TX_CTRL 0xFF0 /* Transmit Control 16 Write */ #define _RX_CTRL 0xFF2 /* Receive Control 8 Write */ #define _BAUD 0xFF4 /* Baud Rate 16 Write */ #define _CLK_PRE 0xFF6 /* Clock Prescaler 8 Write */ #if 0 #define CLOCK_PRESC 0x14 /* ?????? new mod 4 (divide by 5) prescale */ #define BRD50 9215 #define BRD75 6143 #define BRD110 4188 #define BRD134 3438 #define BRD150 3071 #define BRD200 2303 #define BRD300 1535 #define BRD600 767 #define BRD1200 383 #define BRD1800 255 #define BRD2000 229 #define BRD2400 191 #define BRD3600 127 #define BRD4800 95 #define BRD7200 63 #define BRD9600 47 #define BRD14400 31 #define BRD19200 23 #define BRD38400 11 #define BRD57600 7 #define BRD76800 5 #define BRD115200 3 #define BRD230400 1 #define BRD460800 0 #endif #if 0 /* Old clock prescale definition and baud rates associated with it */ #define CLOCK_PRESC 0x19 */ /* mod 9 (divide by 10) prescale */ #define BRD50 4607 #define BRD75 3071 #define BRD110 2094 #define BRD134 1712 #define BRD150 1535 #define BRD200 1151 #define BRD300 767 #define BRD600 383 #define BRD1200 191 #define BRD1800 127 #define BRD2000 114 #define BRD2400 95 #define BRD3600 64 #define BRD4800 47 #define BRD7200 31 #define BRD9600 23 #define BRD14400 15 #define BRD19200 11 #define BRD38400 5 #define BRD57600 3 #define BRD76800 2 #define BRD115200 1 #define BRD230400 0 #endif #define STMBREAK 0x08 /* BREAK */ #define STMFRAME 0x04 /* framing error */ #define STMRCVROVR 0x02 /* receiver over run error */ #define STMPARITY 0x01 /* parity error */ #define STMERROR (STMBREAK | STMFRAME | STMPARITY) #define STMBREAKH 0x800 /* BREAK */ #define STMFRAMEH 0x400 /* framing error */ #define STMRCVROVRH 0x200 /* receiver over run error */ #define STMPARITYH 0x100 /* parity error */ #define STMERRORH (STMBREAKH | STMFRAMEH | STMPARITYH) #define CTS_ACT 0x20 /* CTS input asserted */ #define DSR_ACT 0x10 /* DSR input asserted */ #define CD_ACT 0x08 /* CD input asserted */ #define TXFIFOMT 0x04 /* Tx FIFO is empty */ #define TXSHRMT 0x02 /* Tx shift register is empty */ #define RDA 0x01 /* Rx data available */ #define DRAINED (TXFIFOMT | TXSHRMT) /* indicates Tx is drained */ #define STATMODE 0x8000 /* status mode enable bit */ #define RXFOVERFL 0x2000 /* receive FIFO overflow */ #define RX2MATCH 0x1000 /* receive compare byte 2 match */ #define RX1MATCH 0x0800 /* receive compare byte 1 match */ #define RXBREAK 0x0400 /* received BREAK */ #define RXFRAME 0x0200 /* received framing error */ #define RXPARITY 0x0100 /* received parity error */ #define STATERROR (RXBREAK | RXFRAME | RXPARITY) #define CTSFC_EN 0x80 /* CTS flow control enable bit */ #define RTSTOG_EN 0x40 /* RTS toggle enable bit */ #define TXINT_EN 0x10 /* transmit interrupt enable */ #define STOP2 0x08 /* enable 2 stop bits (0 = 1 stop) */ #define PARITY_EN 0x04 /* enable parity (0 = no parity) */ #define EVEN_PAR 0x02 /* even parity (0 = odd parity) */ #define DATA8BIT 0x01 /* 8 bit data (0 = 7 bit data) */ #define SETBREAK 0x10 /* send break condition (must clear) */ #define LOCALLOOP 0x08 /* local loopback set for test */ #define SET_DTR 0x04 /* assert DTR */ #define SET_RTS 0x02 /* assert RTS */ #define TX_ENABLE 0x01 /* enable transmitter */ #define RTSFC_EN 0x40 /* RTS flow control enable */ #define RXPROC_EN 0x20 /* receive processor enable */ #define TRIG_NO 0x00 /* Rx FIFO trigger level 0 (no trigger) */ #define TRIG_1 0x08 /* trigger level 1 char */ #define TRIG_1_2 0x10 /* trigger level 1/2 */ #define TRIG_7_8 0x18 /* trigger level 7/8 */ #define TRIG_MASK 0x18 /* trigger level mask */ #define SRCINT_EN 0x04 /* special Rx condition interrupt enable */ #define RXINT_EN 0x02 /* Rx interrupt enable */ #define MCINT_EN 0x01 /* modem change interrupt enable */ #define RXF_TRIG 0x20 /* Rx FIFO trigger level interrupt */ #define TXFIFO_MT 0x10 /* Tx FIFO empty interrupt */ #define SRC_INT 0x08 /* special receive condition interrupt */ #define DELTA_CD 0x04 /* CD change interrupt */ #define DELTA_CTS 0x02 /* CTS change interrupt */ #define DELTA_DSR 0x01 /* DSR change interrupt */ #define REP1W2_EN 0x10 /* replace byte 1 with 2 bytes enable */ #define IGN2_EN 0x08 /* ignore byte 2 enable */ #define IGN1_EN 0x04 /* ignore byte 1 enable */ #define COMP2_EN 0x02 /* compare byte 2 enable */ #define COMP1_EN 0x01 /* compare byte 1 enable */ #define RESET_ALL 0x80 /* reset AIOP (all channels) */ #define TXOVERIDE 0x40 /* Transmit software off override */ #define RESETUART 0x20 /* reset channel's UART */ #define RESTXFCNT 0x10 /* reset channel's Tx FIFO count register */ #define RESRXFCNT 0x08 /* reset channel's Rx FIFO count register */ #define INTSTAT0 0x01 /* AIOP 0 interrupt status */ #define INTSTAT1 0x02 /* AIOP 1 interrupt status */ #define INTSTAT2 0x04 /* AIOP 2 interrupt status */ #define INTSTAT3 0x08 /* AIOP 3 interrupt status */ #define INTR_EN 0x08 /* allow interrupts to host */ #define INT_STROB 0x04 /* strobe and clear interrupt line (EOI) */ /************************************************************************** MUDBAC remapped for PCI **************************************************************************/ #define _CFG_INT_PCI 0x40 #define _PCI_INT_FUNC 0x3A #define PCI_STROB 0x2000 /* bit 13 of int aiop register */ #define INTR_EN_PCI 0x0010 /* allow interrupts to host */ #define CHAN3_EN 0x08 /* enable AIOP 3 */ #define CHAN2_EN 0x04 /* enable AIOP 2 */ #define CHAN1_EN 0x02 /* enable AIOP 1 */ #define CHAN0_EN 0x01 /* enable AIOP 0 */ #define FREQ_DIS 0x00 #define FREQ_274HZ 0x60 #define FREQ_137HZ 0x50 #define FREQ_69HZ 0x40 #define FREQ_34HZ 0x30 #define FREQ_17HZ 0x20 #define FREQ_9HZ 0x10 #define PERIODIC_ONLY 0x80 /* only PERIODIC interrupt */ #define CHANINT_EN 0x0100 /* flags to enable/disable channel ints */ #define RDATASIZE 72 #define RREGDATASIZE 52 /* Controller level information structure */ typedef struct { int CtlID; int CtlNum; int BusType; WordIO_t PCIIO; ByteIO_t MBaseIO; ByteIO_t MReg1IO; ByteIO_t MReg2IO; ByteIO_t MReg3IO; Byte_t MReg2; Byte_t MReg3; int NumAiop; WordIO_t AiopIO[AIOP_CTL_SIZE]; ByteIO_t AiopIntChanIO[AIOP_CTL_SIZE]; int AiopID[AIOP_CTL_SIZE]; int AiopNumChan[AIOP_CTL_SIZE]; } CONTROLLER_T; typedef CONTROLLER_T CONTROLLER_t; /* Channel level information structure */ typedef struct { CONTROLLER_T *CtlP; int AiopNum; int ChanID; int ChanNum; ByteIO_t Cmd; ByteIO_t IntChan; ByteIO_t IntMask; DWordIO_t IndexAddr; WordIO_t IndexData; WordIO_t TxRxData; WordIO_t ChanStat; WordIO_t TxRxCount; ByteIO_t IntID; Word_t TxFIFO; Word_t TxFIFOPtrs; Word_t RxFIFO; Word_t RxFIFOPtrs; Word_t TxPrioCnt; Word_t TxPrioPtr; Word_t TxPrioBuf; Byte_t R[RREGDATASIZE]; Byte_t BaudDiv[4]; Byte_t TxControl[4]; Byte_t RxControl[4]; Byte_t TxEnables[4]; Byte_t TxCompare[4]; Byte_t TxReplace1[4]; Byte_t TxReplace2[4]; } CHANNEL_T; typedef CHANNEL_T CHANNEL_t; typedef CHANNEL_T * CHANPTR_T; /*************************************************************************** Function: sClrBreak Purpose: Stop sending a transmit BREAK signal Call: sClrBreak(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sClrBreak(ChP) \ { \ (ChP)->TxControl[3] &= ~SETBREAK; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sClrDTR Purpose: Clr the DTR output Call: sClrDTR(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sClrDTR(ChP) \ { \ (ChP)->TxControl[3] &= ~SET_DTR; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sClrRTS Purpose: Clr the RTS output Call: sClrRTS(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sClrRTS(ChP) \ { \ (ChP)->TxControl[3] &= ~SET_RTS; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sClrTxXOFF Purpose: Clear any existing transmit software flow control off condition Call: sClrTxXOFF(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sClrTxXOFF(ChP) \ { \ sOutB((ChP)->Cmd,TXOVERIDE | (Byte_t)(ChP)->ChanNum); \ sOutB((ChP)->Cmd,(Byte_t)(ChP)->ChanNum); \ } /*************************************************************************** Function: sCtlNumToCtlPtr Purpose: Convert a controller number to controller structure pointer Call: sCtlNumToCtlPtr(CtlNum) int CtlNum; Controller number Return: CONTROLLER_T *: Ptr to controller structure */ #define sCtlNumToCtlPtr(CTLNUM) &sController[CTLNUM] /*************************************************************************** Function: sControllerEOI Purpose: Strobe the MUDBAC's End Of Interrupt bit. Call: sControllerEOI(CtlP) CONTROLLER_T *CtlP; Ptr to controller structure */ #define sControllerEOI(CTLP) sOutB((CTLP)->MReg2IO,(CTLP)->MReg2 | INT_STROB) /*************************************************************************** Function: sPCIControllerEOI Purpose: Strobe the PCI End Of Interrupt bit. Call: sPCIControllerEOI(CtlP) CONTROLLER_T *CtlP; Ptr to controller structure */ #define sPCIControllerEOI(CTLP) sOutW((CTLP)->PCIIO, PCI_STROB) /*************************************************************************** Function: sDisAiop Purpose: Disable I/O access to an AIOP Call: sDisAiop(CltP) CONTROLLER_T *CtlP; Ptr to controller structure int AiopNum; Number of AIOP on controller */ #define sDisAiop(CTLP,AIOPNUM) \ { \ (CTLP)->MReg3 &= sBitMapClrTbl[AIOPNUM]; \ sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \ } /*************************************************************************** Function: sDisCTSFlowCtl Purpose: Disable output flow control using CTS Call: sDisCTSFlowCtl(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sDisCTSFlowCtl(ChP) \ { \ (ChP)->TxControl[2] &= ~CTSFC_EN; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sDisIXANY Purpose: Disable IXANY Software Flow Control Call: sDisIXANY(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sDisIXANY(ChP) \ { \ (ChP)->R[0x0e] = 0x86; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x0c]); \ } /*************************************************************************** Function: DisParity Purpose: Disable parity Call: sDisParity(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: Function sSetParity() can be used in place of functions sEnParity(), sDisParity(), sSetOddParity(), and sSetEvenParity(). */ #define sDisParity(ChP) \ { \ (ChP)->TxControl[2] &= ~PARITY_EN; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sDisRxFIFO Purpose: Disable Rx FIFO Call: sDisRxFIFO(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sDisRxFIFO(ChP) \ { \ (ChP)->R[0x32] = 0x0a; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x30]); \ } /*************************************************************************** Function: sDisRxStatusMode Purpose: Disable the Rx status mode Call: sDisRxStatusMode(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: This takes the channel out of the receive status mode. All subsequent reads of receive data using sReadRxWord() will return two data bytes. */ #define sDisRxStatusMode(ChP) sOutW((ChP)->ChanStat,0) /*************************************************************************** Function: sDisTransmit Purpose: Disable transmit Call: sDisTransmit(ChP) CHANNEL_T *ChP; Ptr to channel structure This disables movement of Tx data from the Tx FIFO into the 1 byte Tx buffer. Therefore there could be up to a 2 byte latency between the time sDisTransmit() is called and the transmit buffer and transmit shift register going completely empty. */ #define sDisTransmit(ChP) \ { \ (ChP)->TxControl[3] &= ~TX_ENABLE; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sDisTxSoftFlowCtl Purpose: Disable Tx Software Flow Control Call: sDisTxSoftFlowCtl(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sDisTxSoftFlowCtl(ChP) \ { \ (ChP)->R[0x06] = 0x8a; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x04]); \ } /*************************************************************************** Function: sEnAiop Purpose: Enable I/O access to an AIOP Call: sEnAiop(CltP) CONTROLLER_T *CtlP; Ptr to controller structure int AiopNum; Number of AIOP on controller */ #define sEnAiop(CTLP,AIOPNUM) \ { \ (CTLP)->MReg3 |= sBitMapSetTbl[AIOPNUM]; \ sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \ } /*************************************************************************** Function: sEnCTSFlowCtl Purpose: Enable output flow control using CTS Call: sEnCTSFlowCtl(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sEnCTSFlowCtl(ChP) \ { \ (ChP)->TxControl[2] |= CTSFC_EN; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sEnIXANY Purpose: Enable IXANY Software Flow Control Call: sEnIXANY(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sEnIXANY(ChP) \ { \ (ChP)->R[0x0e] = 0x21; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x0c]); \ } /*************************************************************************** Function: EnParity Purpose: Enable parity Call: sEnParity(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: Function sSetParity() can be used in place of functions sEnParity(), sDisParity(), sSetOddParity(), and sSetEvenParity(). Warnings: Before enabling parity odd or even parity should be chosen using functions sSetOddParity() or sSetEvenParity(). */ #define sEnParity(ChP) \ { \ (ChP)->TxControl[2] |= PARITY_EN; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sEnRxFIFO Purpose: Enable Rx FIFO Call: sEnRxFIFO(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sEnRxFIFO(ChP) \ { \ (ChP)->R[0x32] = 0x08; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x30]); \ } /*************************************************************************** Function: sEnRxProcessor Purpose: Enable the receive processor Call: sEnRxProcessor(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: This function is used to start the receive processor. When the channel is in the reset state the receive processor is not running. This is done to prevent the receive processor from executing invalid microcode instructions prior to the downloading of the microcode. Warnings: This function must be called after valid microcode has been downloaded to the AIOP, and it must not be called before the microcode has been downloaded. */ #define sEnRxProcessor(ChP) \ { \ (ChP)->RxControl[2] |= RXPROC_EN; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->RxControl[0]); \ } /*************************************************************************** Function: sEnRxStatusMode Purpose: Enable the Rx status mode Call: sEnRxStatusMode(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: This places the channel in the receive status mode. All subsequent reads of receive data using sReadRxWord() will return a data byte in the low word and a status byte in the high word. */ #define sEnRxStatusMode(ChP) sOutW((ChP)->ChanStat,STATMODE) /*************************************************************************** Function: sEnTransmit Purpose: Enable transmit Call: sEnTransmit(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sEnTransmit(ChP) \ { \ (ChP)->TxControl[3] |= TX_ENABLE; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sEnTxSoftFlowCtl Purpose: Enable Tx Software Flow Control Call: sEnTxSoftFlowCtl(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sEnTxSoftFlowCtl(ChP) \ { \ (ChP)->R[0x06] = 0xc5; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x04]); \ } /*************************************************************************** Function: sGetAiopIntStatus Purpose: Get the AIOP interrupt status Call: sGetAiopIntStatus(CtlP,AiopNum) CONTROLLER_T *CtlP; Ptr to controller structure int AiopNum; AIOP number Return: Byte_t: The AIOP interrupt status. Bits 0 through 7 represent channels 0 through 7 respectively. If a bit is set that channel is interrupting. */ #define sGetAiopIntStatus(CTLP,AIOPNUM) sInB((CTLP)->AiopIntChanIO[AIOPNUM]) /*************************************************************************** Function: sGetAiopNumChan Purpose: Get the number of channels supported by an AIOP Call: sGetAiopNumChan(CtlP,AiopNum) CONTROLLER_T *CtlP; Ptr to controller structure int AiopNum; AIOP number Return: int: The number of channels supported by the AIOP */ #define sGetAiopNumChan(CTLP,AIOPNUM) (CTLP)->AiopNumChan[AIOPNUM] /*************************************************************************** Function: sGetChanIntID Purpose: Get a channel's interrupt identification byte Call: sGetChanIntID(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: Byte_t: The channel interrupt ID. Can be any combination of the following flags: RXF_TRIG: Rx FIFO trigger level interrupt TXFIFO_MT: Tx FIFO empty interrupt SRC_INT: Special receive condition interrupt DELTA_CD: CD change interrupt DELTA_CTS: CTS change interrupt DELTA_DSR: DSR change interrupt */ #define sGetChanIntID(ChP) (sInB((ChP)->IntID) & (RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR)) /*************************************************************************** Function: sGetChanNum Purpose: Get the number of a channel within an AIOP Call: sGetChanNum(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: int: Channel number within AIOP, or NULLCHAN if channel does not exist. */ #define sGetChanNum(ChP) (ChP)->ChanNum /*************************************************************************** Function: sGetChanStatus Purpose: Get the channel status Call: sGetChanStatus(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: Word_t: The channel status. Can be any combination of the following flags: LOW BYTE FLAGS CTS_ACT: CTS input asserted DSR_ACT: DSR input asserted CD_ACT: CD input asserted TXFIFOMT: Tx FIFO is empty TXSHRMT: Tx shift register is empty RDA: Rx data available HIGH BYTE FLAGS STATMODE: status mode enable bit RXFOVERFL: receive FIFO overflow RX2MATCH: receive compare byte 2 match RX1MATCH: receive compare byte 1 match RXBREAK: received BREAK RXFRAME: received framing error RXPARITY: received parity error Warnings: This function will clear the high byte flags in the Channel Status Register. */ #define sGetChanStatus(ChP) sInW((ChP)->ChanStat) /*************************************************************************** Function: sGetChanStatusLo Purpose: Get the low byte only of the channel status Call: sGetChanStatusLo(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: Byte_t: The channel status low byte. Can be any combination of the following flags: CTS_ACT: CTS input asserted DSR_ACT: DSR input asserted CD_ACT: CD input asserted TXFIFOMT: Tx FIFO is empty TXSHRMT: Tx shift register is empty RDA: Rx data available */ #define sGetChanStatusLo(ChP) sInB((ByteIO_t)(ChP)->ChanStat) /*************************************************************************** Function: sGetControllerIntStatus Purpose: Get the controller interrupt status Call: sGetControllerIntStatus(CtlP) CONTROLLER_T *CtlP; Ptr to controller structure Return: Byte_t: The controller interrupt status in the lower 4 bits. Bits 0 through 3 represent AIOP's 0 through 3 respectively. If a bit is set that AIOP is interrupting. Bits 4 through 7 will always be cleared. */ #define sGetControllerIntStatus(CTLP) (sInB((CTLP)->MReg1IO) & 0x0f) /*************************************************************************** Function: sPCIGetControllerIntStatus Purpose: Get the controller interrupt status Call: sPCIGetControllerIntStatus(CtlP) CONTROLLER_T *CtlP; Ptr to controller structure Return: unsigned char: The controller interrupt status in the lower 4 bits and bit 4. Bits 0 through 3 represent AIOP's 0 through 3 respectively. Bit 4 is set if the int was generated from periodic. If a bit is set the AIOP is interrupting. */ #define sPCIGetControllerIntStatus(CTLP) ((sInW((CTLP)->PCIIO) >> 8) & 0x1f) /*************************************************************************** Function: sGetRxCnt Purpose: Get the number of data bytes in the Rx FIFO Call: sGetRxCnt(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: int: The number of data bytes in the Rx FIFO. Comments: Byte read of count register is required to obtain Rx count. */ #define sGetRxCnt(ChP) sInW((ChP)->TxRxCount) /*************************************************************************** Function: sGetTxCnt Purpose: Get the number of data bytes in the Tx FIFO Call: sGetTxCnt(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: Byte_t: The number of data bytes in the Tx FIFO. Comments: Byte read of count register is required to obtain Tx count. */ #define sGetTxCnt(ChP) sInB((ByteIO_t)(ChP)->TxRxCount) /***************************************************************************** Function: sGetTxRxDataIO Purpose: Get the I/O address of a channel's TxRx Data register Call: sGetTxRxDataIO(ChP) CHANNEL_T *ChP; Ptr to channel structure Return: WordIO_t: I/O address of a channel's TxRx Data register */ #define sGetTxRxDataIO(ChP) (ChP)->TxRxData /*************************************************************************** Function: sInitChanDefaults Purpose: Initialize a channel structure to it's default state. Call: sInitChanDefaults(ChP) CHANNEL_T *ChP; Ptr to the channel structure Comments: This function must be called once for every channel structure that exists before any other SSCI calls can be made. */ #define sInitChanDefaults(ChP) \ { \ (ChP)->CtlP = NULLCTLPTR; \ (ChP)->AiopNum = NULLAIOP; \ (ChP)->ChanID = AIOPID_NULL; \ (ChP)->ChanNum = NULLCHAN; \ } /*************************************************************************** Function: sResetAiopByNum Purpose: Reset the AIOP by number Call: sResetAiopByNum(CTLP,AIOPNUM) CONTROLLER_T CTLP; Ptr to controller structure AIOPNUM; AIOP index */ #define sResetAiopByNum(CTLP,AIOPNUM) \ { \ sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,RESET_ALL); \ sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,0x0); \ } /*************************************************************************** Function: sSendBreak Purpose: Send a transmit BREAK signal Call: sSendBreak(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSendBreak(ChP) \ { \ (ChP)->TxControl[3] |= SETBREAK; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetBaud Purpose: Set baud rate Call: sSetBaud(ChP,Divisor) CHANNEL_T *ChP; Ptr to channel structure Word_t Divisor; 16 bit baud rate divisor for channel */ #define sSetBaud(ChP,DIVISOR) \ { \ (ChP)->BaudDiv[2] = (Byte_t)(DIVISOR); \ (ChP)->BaudDiv[3] = (Byte_t)((DIVISOR) >> 8); \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->BaudDiv[0]); \ } /*************************************************************************** Function: sSetData7 Purpose: Set data bits to 7 Call: sSetData7(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetData7(ChP) \ { \ (ChP)->TxControl[2] &= ~DATA8BIT; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetData8 Purpose: Set data bits to 8 Call: sSetData8(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetData8(ChP) \ { \ (ChP)->TxControl[2] |= DATA8BIT; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetDTR Purpose: Set the DTR output Call: sSetDTR(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetDTR(ChP) \ { \ (ChP)->TxControl[3] |= SET_DTR; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetEvenParity Purpose: Set even parity Call: sSetEvenParity(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: Function sSetParity() can be used in place of functions sEnParity(), sDisParity(), sSetOddParity(), and sSetEvenParity(). Warnings: This function has no effect unless parity is enabled with function sEnParity(). */ #define sSetEvenParity(ChP) \ { \ (ChP)->TxControl[2] |= EVEN_PAR; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetOddParity Purpose: Set odd parity Call: sSetOddParity(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: Function sSetParity() can be used in place of functions sEnParity(), sDisParity(), sSetOddParity(), and sSetEvenParity(). Warnings: This function has no effect unless parity is enabled with function sEnParity(). */ #define sSetOddParity(ChP) \ { \ (ChP)->TxControl[2] &= ~EVEN_PAR; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetRTS Purpose: Set the RTS output Call: sSetRTS(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetRTS(ChP) \ { \ (ChP)->TxControl[3] |= SET_RTS; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetRxTrigger Purpose: Set the Rx FIFO trigger level Call: sSetRxProcessor(ChP,Level) CHANNEL_T *ChP; Ptr to channel structure Byte_t Level; Number of characters in Rx FIFO at which the interrupt will be generated. Can be any of the following flags: TRIG_NO: no trigger TRIG_1: 1 character in FIFO TRIG_1_2: FIFO 1/2 full TRIG_7_8: FIFO 7/8 full Comments: An interrupt will be generated when the trigger level is reached only if function sEnInterrupt() has been called with flag RXINT_EN set. The RXF_TRIG flag in the Interrupt Idenfification register will be set whenever the trigger level is reached regardless of the setting of RXINT_EN. */ #define sSetRxTrigger(ChP,LEVEL) \ { \ (ChP)->RxControl[2] &= ~TRIG_MASK; \ (ChP)->RxControl[2] |= LEVEL; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->RxControl[0]); \ } /*************************************************************************** Function: sSetStop1 Purpose: Set stop bits to 1 Call: sSetStop1(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetStop1(ChP) \ { \ (ChP)->TxControl[2] &= ~STOP2; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetStop2 Purpose: Set stop bits to 2 Call: sSetStop2(ChP) CHANNEL_T *ChP; Ptr to channel structure */ #define sSetStop2(ChP) \ { \ (ChP)->TxControl[2] |= STOP2; \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->TxControl[0]); \ } /*************************************************************************** Function: sSetTxXOFFChar Purpose: Set the Tx XOFF flow control character Call: sSetTxXOFFChar(ChP,Ch) CHANNEL_T *ChP; Ptr to channel structure Byte_t Ch; The value to set the Tx XOFF character to */ #define sSetTxXOFFChar(ChP,CH) \ { \ (ChP)->R[0x07] = (CH); \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x04]); \ } /*************************************************************************** Function: sSetTxXONChar Purpose: Set the Tx XON flow control character Call: sSetTxXONChar(ChP,Ch) CHANNEL_T *ChP; Ptr to channel structure Byte_t Ch; The value to set the Tx XON character to */ #define sSetTxXONChar(ChP,CH) \ { \ (ChP)->R[0x0b] = (CH); \ sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0x08]); \ } /*************************************************************************** Function: sStartRxProcessor Purpose: Start a channel's receive processor Call: sStartRxProcessor(ChP) CHANNEL_T *ChP; Ptr to channel structure Comments: This function is used to start a Rx processor after it was stopped with sStopRxProcessor() or sStopSWInFlowCtl(). It will restart both the Rx processor and software input flow control. */ #define sStartRxProcessor(ChP) sOutDW((ChP)->IndexAddr,*(DWord_t *)&(ChP)->R[0]) /*************************************************************************** Function: sWriteTxByte Purpose: Write a transmit data byte to a channel. ByteIO_t io: Channel transmit register I/O address. This can be obtained with sGetTxRxDataIO(). Byte_t Data; The transmit data byte. Warnings: This function writes the data byte without checking to see if sMaxTxSize is exceeded in the Tx FIFO. */ #define sWriteTxByte(IO,DATA) sOutB(IO,DATA) int sInitController( CONTROLLER_T *CtlP, int CtlNum, ByteIO_t MudbacIO, ByteIO_t *AiopIOList, int AiopIOListSize, int IRQNum, Byte_t Frequency, int PeriodicOnly); int sPCIInitController( CONTROLLER_T *CtlP, int CtlNum, ByteIO_t *AiopIOList, int AiopIOListSize, int IRQNum, Byte_t Frequency, int PeriodicOnly); int sReadAiopID(ByteIO_t io); int sReadAiopNumChan(WordIO_t io); int sInitChan( CONTROLLER_T *CtlP, CHANNEL_T *ChP, int AiopNum, int ChanNum); Byte_t sGetRxErrStatus(CHANNEL_T *ChP); void sStopRxProcessor(CHANNEL_T *ChP); void sStopSWInFlowCtl(CHANNEL_T *ChP); void sFlushRxFIFO(CHANNEL_T *ChP); void sFlushTxFIFO(CHANNEL_T *ChP); int sWriteTxPrioByte(CHANNEL_T *ChP, Byte_t Data); void sEnInterrupts(CHANNEL_T *ChP,Word_t Flags); void sDisInterrupts(CHANNEL_T *ChP,Word_t Flags); extern Byte_t R[RDATASIZE]; extern CONTROLLER_T sController[CTL_SIZE]; extern Byte_t sIRQMap[16]; extern Byte_t sBitMapClrTbl[8]; extern Byte_t sBitMapSetTbl[8]; extern int sClockPrescale; /* * Begin Linux specific definitions for the Rocketport driver * * This code is Copyright Theodore Ts'o, 1995-1997 */ struct r_port { int magic; int line; int flags; int count; int blocked_open; struct tty_struct *tty; int board:2; int aiop:2; int chan:3; CONTROLLER_t *ctlp; CHANNEL_t channel; int closing_wait; int close_delay; int intmask; int xmit_fifo_room; /* room in xmit fifo */ unsigned char *xmit_buf; int xmit_head; int xmit_tail; int xmit_cnt; int session; int pgrp; int cd_status; int ignore_status_mask; int read_status_mask; int cps; struct termios normal_termios; struct termios callout_termios; struct tq_struct tqueue; wait_queue_head_t open_wait; wait_queue_head_t close_wait; }; #define RPORT_MAGIC 0x525001 #define NUM_BOARDS 8 #define MAX_RP_PORTS (32*NUM_BOARDS) /* * The size of the xmit buffer is 1 page, or 4096 bytes */ #define XMIT_BUF_SIZE 4096 /* number of characters left in xmit buffer before we ask for more */ #define WAKEUP_CHARS 256 /* Internal flags used only by the rocketport driver */ #define ROCKET_INITIALIZED 0x80000000 /* Port is active */ #define ROCKET_CLOSING 0x40000000 /* Serial port is closing */ #define ROCKET_NORMAL_ACTIVE 0x20000000 /* Normal port is active */ #define ROCKET_CALLOUT_ACTIVE 0x10000000 /* Callout port is active */ /* * tty subtypes * */ #define SERIAL_TYPE_NORMAL 1 #define SERIAL_TYPE_CALLOUT 2 /* * Assigned major numbers for the Comtrol Rocketport */ #define TTY_ROCKET_MAJOR 46 #define CUA_ROCKET_MAJOR 47 /* * Utility function. */ #ifndef MIN #define MIN(a,b) ((a) < (b) ? (a) : (b)) #endif #ifdef PCI_VENDOR_ID_RP #undef PCI_VENDOR_ID_RP #undef PCI_DEVICE_ID_RP8OCTA #undef PCI_DEVICE_ID_RP8INTF #undef PCI_DEVICE_ID_RP16INTF #undef PCI_DEVICE_ID_RP32INTF #endif #define PCI_VENDOR_ID_RP 0x11fe #define PCI_DEVICE_ID_RP32INTF 0x0001 #define PCI_DEVICE_ID_RP8INTF 0x0002 #define PCI_DEVICE_ID_RP16INTF 0x0003 #define PCI_DEVICE_ID_RP8OCTA 0x0005 #ifndef PCI_DEVICE_ID_RP4QUAD #define PCI_DEVICE_ID_RP4QUAD 0x0004 #endif #ifndef PCI_DEVICE_ID_RP8J #define PCI_DEVICE_ID_RP8J 0x0006 #endif #ifndef PCI_DEVICE_ID_RPP4 #define PCI_DEVICE_ID_RPP4 0x000A #endif #ifndef PCI_DEVICE_ID_RPP8 #define PCI_DEVICE_ID_RPP8 0x000B #endif #ifndef PCI_DEVICE_ID_RP8M #define PCI_DEVICE_ID_RP8M 0x000C #endif |