diff options
Diffstat (limited to 'drivers/char/rocket.c')
| -rw-r--r-- | drivers/char/rocket.c | 229 |
1 files changed, 121 insertions, 108 deletions
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 5bcbeb0cb9ae..5b1d3680c8ab 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -161,6 +161,64 @@ static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = { UPCI_AIOP_INTR_BIT_3 }; +static Byte_t RData[RDATASIZE] = { + 0x00, 0x09, 0xf6, 0x82, + 0x02, 0x09, 0x86, 0xfb, + 0x04, 0x09, 0x00, 0x0a, + 0x06, 0x09, 0x01, 0x0a, + 0x08, 0x09, 0x8a, 0x13, + 0x0a, 0x09, 0xc5, 0x11, + 0x0c, 0x09, 0x86, 0x85, + 0x0e, 0x09, 0x20, 0x0a, + 0x10, 0x09, 0x21, 0x0a, + 0x12, 0x09, 0x41, 0xff, + 0x14, 0x09, 0x82, 0x00, + 0x16, 0x09, 0x82, 0x7b, + 0x18, 0x09, 0x8a, 0x7d, + 0x1a, 0x09, 0x88, 0x81, + 0x1c, 0x09, 0x86, 0x7a, + 0x1e, 0x09, 0x84, 0x81, + 0x20, 0x09, 0x82, 0x7c, + 0x22, 0x09, 0x0a, 0x0a +}; + +static Byte_t RRegData[RREGDATASIZE] = { + 0x00, 0x09, 0xf6, 0x82, /* 00: Stop Rx processor */ + 0x08, 0x09, 0x8a, 0x13, /* 04: Tx software flow control */ + 0x0a, 0x09, 0xc5, 0x11, /* 08: XON char */ + 0x0c, 0x09, 0x86, 0x85, /* 0c: XANY */ + 0x12, 0x09, 0x41, 0xff, /* 10: Rx mask char */ + 0x14, 0x09, 0x82, 0x00, /* 14: Compare/Ignore #0 */ + 0x16, 0x09, 0x82, 0x7b, /* 18: Compare #1 */ + 0x18, 0x09, 0x8a, 0x7d, /* 1c: Compare #2 */ + 0x1a, 0x09, 0x88, 0x81, /* 20: Interrupt #1 */ + 0x1c, 0x09, 0x86, 0x7a, /* 24: Ignore/Replace #1 */ + 0x1e, 0x09, 0x84, 0x81, /* 28: Interrupt #2 */ + 0x20, 0x09, 0x82, 0x7c, /* 2c: Ignore/Replace #2 */ + 0x22, 0x09, 0x0a, 0x0a /* 30: Rx FIFO Enable */ +}; + +static CONTROLLER_T sController[CTL_SIZE] = { + {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, + {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, + {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, + {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, + {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, + {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, + {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, + {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}} +}; + +static Byte_t sBitMapClrTbl[8] = { + 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f +}; + +static Byte_t sBitMapSetTbl[8] = { + 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 +}; + +static int sClockPrescale = 0x14; + /* * Line number is the ttySIx number (x), the Minor number. We * assign them sequentially, starting at zero. The following @@ -177,6 +235,26 @@ static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model); static unsigned char GetLineNumber(int ctrl, int aiop, int ch); static unsigned char SetLineNumber(int ctrl, int aiop, int ch); static void rp_start(struct tty_struct *tty); +static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum, + int ChanNum); +static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode); +static void sFlushRxFIFO(CHANNEL_T * ChP); +static void sFlushTxFIFO(CHANNEL_T * ChP); +static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags); +static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags); +static void sModemReset(CONTROLLER_T * CtlP, int chan, int on); +static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on); +static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data); +static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum, + ByteIO_t * AiopIOList, int AiopIOListSize, + WordIO_t ConfigIO, int IRQNum, Byte_t Frequency, + int PeriodicOnly, int altChanRingIndicator, + int UPCIRingInd); +static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO, + ByteIO_t * AiopIOList, int AiopIOListSize, + int IRQNum, Byte_t Frequency, int PeriodicOnly); +static int sReadAiopID(ByteIO_t io); +static int sReadAiopNumChan(WordIO_t io); #ifdef MODULE MODULE_AUTHOR("Theodore Ts'o"); @@ -277,7 +355,7 @@ static void rp_do_receive(struct r_port *info, ToRecv = space; if (ToRecv <= 0) - return; + goto done; /* * if status indicates there are errored characters in the @@ -359,6 +437,7 @@ static void rp_do_receive(struct r_port *info, } /* Push the data up to the tty layer */ ld->receive_buf(tty, tty->flip.char_buf, tty->flip.flag_buf, count); +done: tty_ldisc_deref(ld); } @@ -1798,7 +1877,7 @@ static void rp_flush_buffer(struct tty_struct *tty) * init's aiopic and serial port hardware. * Inputs: i is the board number (0-n) */ -__init int register_PCI(int i, struct pci_dev *dev) +static __init int register_PCI(int i, struct pci_dev *dev) { int num_aiops, aiop, max_num_aiops, num_chan, chan; unsigned int aiopio[MAX_AIOPS_PER_BOARD]; @@ -2453,72 +2532,6 @@ static void rp_cleanup_module(void) } #endif -#ifndef TRUE -#define TRUE 1 -#endif - -#ifndef FALSE -#define FALSE 0 -#endif - -static Byte_t RData[RDATASIZE] = { - 0x00, 0x09, 0xf6, 0x82, - 0x02, 0x09, 0x86, 0xfb, - 0x04, 0x09, 0x00, 0x0a, - 0x06, 0x09, 0x01, 0x0a, - 0x08, 0x09, 0x8a, 0x13, - 0x0a, 0x09, 0xc5, 0x11, - 0x0c, 0x09, 0x86, 0x85, - 0x0e, 0x09, 0x20, 0x0a, - 0x10, 0x09, 0x21, 0x0a, - 0x12, 0x09, 0x41, 0xff, - 0x14, 0x09, 0x82, 0x00, - 0x16, 0x09, 0x82, 0x7b, - 0x18, 0x09, 0x8a, 0x7d, - 0x1a, 0x09, 0x88, 0x81, - 0x1c, 0x09, 0x86, 0x7a, - 0x1e, 0x09, 0x84, 0x81, - 0x20, 0x09, 0x82, 0x7c, - 0x22, 0x09, 0x0a, 0x0a -}; - -static Byte_t RRegData[RREGDATASIZE] = { - 0x00, 0x09, 0xf6, 0x82, /* 00: Stop Rx processor */ - 0x08, 0x09, 0x8a, 0x13, /* 04: Tx software flow control */ - 0x0a, 0x09, 0xc5, 0x11, /* 08: XON char */ - 0x0c, 0x09, 0x86, 0x85, /* 0c: XANY */ - 0x12, 0x09, 0x41, 0xff, /* 10: Rx mask char */ - 0x14, 0x09, 0x82, 0x00, /* 14: Compare/Ignore #0 */ - 0x16, 0x09, 0x82, 0x7b, /* 18: Compare #1 */ - 0x18, 0x09, 0x8a, 0x7d, /* 1c: Compare #2 */ - 0x1a, 0x09, 0x88, 0x81, /* 20: Interrupt #1 */ - 0x1c, 0x09, 0x86, 0x7a, /* 24: Ignore/Replace #1 */ - 0x1e, 0x09, 0x84, 0x81, /* 28: Interrupt #2 */ - 0x20, 0x09, 0x82, 0x7c, /* 2c: Ignore/Replace #2 */ - 0x22, 0x09, 0x0a, 0x0a /* 30: Rx FIFO Enable */ -}; - -CONTROLLER_T sController[CTL_SIZE] = { - {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, - {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, - {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, - {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, - {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, - {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}, - {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0}, - {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}} -}; - -Byte_t sBitMapClrTbl[8] = { - 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f -}; - -Byte_t sBitMapSetTbl[8] = { - 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 -}; - -int sClockPrescale = 0x14; - /*************************************************************************** Function: sInitController Purpose: Initialization of controller global registers and controller @@ -2554,22 +2567,22 @@ Call: sInitController(CtlP,CtlNum,MudbacIO,AiopIOList,AiopIOListSize, FREQ_4HZ - 4 Hertz If IRQNum is set to 0 the Frequency parameter is overidden, it is forced to a value of FREQ_DIS. - int PeriodicOnly: TRUE if all interrupts except the periodic + int PeriodicOnly: 1 if all interrupts except the periodic interrupt are to be blocked. - FALSE is both the periodic interrupt and + 0 is both the periodic interrupt and other channel interrupts are allowed. If IRQNum is set to 0 the PeriodicOnly parameter is - overidden, it is forced to a value of FALSE. + overidden, it is forced to a value of 0. Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller initialization failed. Comments: If periodic interrupts are to be disabled but AIOP interrupts - are allowed, set Frequency to FREQ_DIS and PeriodicOnly to FALSE. + are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0. If interrupts are to be completely disabled set IRQNum to 0. - Setting Frequency to FREQ_DIS and PeriodicOnly to TRUE is an + Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an invalid combination. This function performs initialization of global interrupt modes, @@ -2589,9 +2602,9 @@ Warnings: No range checking on any of the parameters is done. After this function all AIOPs on the controller are disabled, they can be enabled with sEnAiop(). */ -int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO, - ByteIO_t * AiopIOList, int AiopIOListSize, int IRQNum, - Byte_t Frequency, int PeriodicOnly) +static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO, + ByteIO_t * AiopIOList, int AiopIOListSize, + int IRQNum, Byte_t Frequency, int PeriodicOnly) { int i; ByteIO_t io; @@ -2687,22 +2700,22 @@ Call: sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize, FREQ_4HZ - 4 Hertz If IRQNum is set to 0 the Frequency parameter is overidden, it is forced to a value of FREQ_DIS. - int PeriodicOnly: TRUE if all interrupts except the periodic + int PeriodicOnly: 1 if all interrupts except the periodic interrupt are to be blocked. - FALSE is both the periodic interrupt and + 0 is both the periodic interrupt and other channel interrupts are allowed. If IRQNum is set to 0 the PeriodicOnly parameter is - overidden, it is forced to a value of FALSE. + overidden, it is forced to a value of 0. Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller initialization failed. Comments: If periodic interrupts are to be disabled but AIOP interrupts - are allowed, set Frequency to FREQ_DIS and PeriodicOnly to FALSE. + are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0. If interrupts are to be completely disabled set IRQNum to 0. - Setting Frequency to FREQ_DIS and PeriodicOnly to TRUE is an + Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an invalid combination. This function performs initialization of global interrupt modes, @@ -2722,11 +2735,11 @@ Warnings: No range checking on any of the parameters is done. After this function all AIOPs on the controller are disabled, they can be enabled with sEnAiop(). */ -int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum, - ByteIO_t * AiopIOList, int AiopIOListSize, - WordIO_t ConfigIO, int IRQNum, Byte_t Frequency, - int PeriodicOnly, int altChanRingIndicator, - int UPCIRingInd) +static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum, + ByteIO_t * AiopIOList, int AiopIOListSize, + WordIO_t ConfigIO, int IRQNum, Byte_t Frequency, + int PeriodicOnly, int altChanRingIndicator, + int UPCIRingInd) { int i; ByteIO_t io; @@ -2784,7 +2797,7 @@ Return: int: Flag AIOPID_XXXX if a valid AIOP is found, where X Warnings: No context switches are allowed while executing this function. */ -int sReadAiopID(ByteIO_t io) +static int sReadAiopID(ByteIO_t io) { Byte_t AiopID; /* ID byte from AIOP */ @@ -2810,7 +2823,7 @@ Comments: The number of channels is determined by write/reads from identical AIOP, otherwise it is an 8 channel. Warnings: No context switches are allowed while executing this function. */ -int sReadAiopNumChan(WordIO_t io) +static int sReadAiopNumChan(WordIO_t io) { Word_t x; static Byte_t R[4] = { 0x00, 0x00, 0x34, 0x12 }; @@ -2834,15 +2847,15 @@ Call: sInitChan(CtlP,ChP,AiopNum,ChanNum) CHANNEL_T *ChP; Ptr to channel structure int AiopNum; AIOP number within controller int ChanNum; Channel number within AIOP -Return: int: TRUE if initialization succeeded, FALSE if it fails because channel +Return: int: 1 if initialization succeeded, 0 if it fails because channel number exceeds number of channels available in AIOP. Comments: This function must be called before a channel can be used. Warnings: No range checking on any of the parameters is done. No context switches are allowed while executing this function. */ -int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum, - int ChanNum) +static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum, + int ChanNum) { int i; WordIO_t AiopIO; @@ -2853,7 +2866,7 @@ int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum, int brd9600; if (ChanNum >= CtlP->AiopNumChan[AiopNum]) - return (FALSE); /* exceeds num chans in AIOP */ + return 0; /* exceeds num chans in AIOP */ /* Channel, AIOP, and controller identifiers */ ChP->CtlP = CtlP; @@ -2968,7 +2981,7 @@ int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum, ChP->TxPrioBuf = ChOff + _TXP_BUF; sEnRxProcessor(ChP); /* start the Rx processor */ - return (TRUE); + return 1; } /*************************************************************************** @@ -2989,7 +3002,7 @@ Warnings: No context switches are allowed while executing this function. After calling this function a delay of 4 uS is required to ensure that the receive processor is no longer processing this channel. */ -void sStopRxProcessor(CHANNEL_T * ChP) +static void sStopRxProcessor(CHANNEL_T * ChP) { Byte_t R[4]; @@ -3014,18 +3027,18 @@ Comments: To prevent data from being enqueued or dequeued in the Tx FIFO this function. Warnings: No context switches are allowed while executing this function. */ -void sFlushRxFIFO(CHANNEL_T * ChP) +static void sFlushRxFIFO(CHANNEL_T * ChP) { int i; Byte_t Ch; /* channel number within AIOP */ - int RxFIFOEnabled; /* TRUE if Rx FIFO enabled */ + int RxFIFOEnabled; /* 1 if Rx FIFO enabled */ if (sGetRxCnt(ChP) == 0) /* Rx FIFO empty */ return; /* don't need to flush */ - RxFIFOEnabled = FALSE; + RxFIFOEnabled = 0; if (ChP->R[0x32] == 0x08) { /* Rx FIFO is enabled */ - RxFIFOEnabled = TRUE; + RxFIFOEnabled = 1; sDisRxFIFO(ChP); /* disable it */ for (i = 0; i < 2000 / 200; i++) /* delay 2 uS to allow proc to disable FIFO */ sInB(ChP->IntChan); /* depends on bus i/o timing */ @@ -3056,18 +3069,18 @@ Comments: To prevent data from being enqueued or dequeued in the Tx FIFO this function. Warnings: No context switches are allowed while executing this function. */ -void sFlushTxFIFO(CHANNEL_T * ChP) +static void sFlushTxFIFO(CHANNEL_T * ChP) { int i; Byte_t Ch; /* channel number within AIOP */ - int TxEnabled; /* TRUE if transmitter enabled */ + int TxEnabled; /* 1 if transmitter enabled */ if (sGetTxCnt(ChP) == 0) /* Tx FIFO empty */ return; /* don't need to flush */ - TxEnabled = FALSE; + TxEnabled = 0; if (ChP->TxControl[3] & TX_ENABLE) { - TxEnabled = TRUE; + TxEnabled = 1; sDisTransmit(ChP); /* disable transmitter */ } sStopRxProcessor(ChP); /* stop Rx processor */ @@ -3096,7 +3109,7 @@ Comments: The priority byte is transmitted before any data in the Tx FIFO. Warnings: No context switches are allowed while executing this function. */ -int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data) +static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data) { Byte_t DWBuf[4]; /* buffer for double word writes */ Word_t *WordPtr; /* must be far because Win SS != DS */ @@ -3158,7 +3171,7 @@ Comments: If an interrupt enable flag is set in Flags, that interrupt will be enable channel interrupts. This would allow the global interrupt status register to be used to determine which AIOPs need service. */ -void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags) +static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags) { Byte_t Mask; /* Interrupt Mask Register */ @@ -3202,7 +3215,7 @@ Comments: If an interrupt flag is set in Flags, that interrupt will be this channel's bit from being set in the AIOP's Interrupt Channel Register. */ -void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags) +static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags) { Byte_t Mask; /* Interrupt Mask Register */ @@ -3218,7 +3231,7 @@ void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags) } } -void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode) +static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode) { sOutB(ChP->CtlP->AiopIO[2], (mode & 0x18) | ChP->ChanNum); } @@ -3227,7 +3240,7 @@ void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode) * Not an official SSCI function, but how to reset RocketModems. * ISA bus version */ -void sModemReset(CONTROLLER_T * CtlP, int chan, int on) +static void sModemReset(CONTROLLER_T * CtlP, int chan, int on) { ByteIO_t addr; Byte_t val; @@ -3252,7 +3265,7 @@ void sModemReset(CONTROLLER_T * CtlP, int chan, int on) * Not an official SSCI function, but how to reset RocketModems. * PCI bus version */ -void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on) +static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on) { ByteIO_t addr; |