diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc index 4db54a14002f..4459ab603605 100644 --- a/ObsoleteFiles.inc +++ b/ObsoleteFiles.inc @@ -42,8 +42,6 @@ OLD_FILES+=etc/rc.d/atm1 OLD_FILES+=etc/rc.d/atm2 OLD_FILES+=etc/rc.d/atm3 -# 20170426: Remove cy(4) -OLD_FILES+=usr/share/man/man4/cy.4.gz # 20170424: NATM support removed OLD_FILES+=rescue/atmconfig OLD_FILES+=sbin/atmconfig diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile index 748bde202369..b58d128a956a 100644 --- a/share/man/man4/Makefile +++ b/share/man/man4/Makefile @@ -118,6 +118,7 @@ MAN= aac.4 \ cxgb.4 \ cxgbe.4 \ cxgbev.4 \ + cy.4 \ cyapa.4 \ da.4 \ dc.4 \ diff --git a/share/man/man4/cy.4 b/share/man/man4/cy.4 new file mode 100644 index 000000000000..c0c807286f1e --- /dev/null +++ b/share/man/man4/cy.4 @@ -0,0 +1,257 @@ +.\" Copyright (c) 1990, 1991 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Systems Programming Group of the University of Utah Computer +.\" Science Department. +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" from: @(#)dca.4 5.2 (Berkeley) 3/27/91 +.\" from: com.4,v 1.1 1993/08/06 11:19:07 cgd Exp +.\" from: sio.4,v 1.16 1995/06/26 06:05:30 bde Exp $ +.\" $FreeBSD$ +.\" +.Dd May 24, 2004 +.Dt CY 4 +.Os +.Sh NAME +.Nm cy +.Nd Cyclades Cyclom-Y serial driver +.Sh SYNOPSIS +For one ISA card: +.Bd -ragged -offset indent -compact +.Cd "device cy" +.Pp +In +.Pa /boot/device.hints : +.Cd hint.cy.0.at="isa" +.Cd hint.cy.0.irq="10" +.Cd hint.cy.0.maddr="0xd4000" +.Cd hint.cy.0.msize="0x2000" +.Ed +.Pp +For two ISA cards: +.Bd -ragged -offset indent -compact +.Cd "device cy" +.Pp +In +.Pa /boot/device.hints : +.Cd hint.cy.0.at="isa" +.Cd hint.cy.0.irq="10" +.Cd hint.cy.0.maddr="0xd4000" +.Cd hint.cy.0.msize="0x2000" +.Cd hint.cy.1.at="isa" +.Cd hint.cy.1.irq="11" +.Cd hint.cy.1.maddr="0xd6000" +.Cd hint.cy.1.msize="0x2000" +.Ed +.Pp +For PCI cards: +.Bd -ragged -offset indent -compact +.Cd "device cy" +.Cd "options CY_PCI_FASTINTR" +.Pp +No lines are required in +.Pa /boot/device.hints +for PCI cards. +.Ed +.Pp +Minor numbering: +.Bd -literal -offset indent -compact +0b\fIMMMMMMMMMMMMMMMMxxxxxxxxOLIMMMMM\fR + call\fBO\fRut + \fBL\fRock + \fBI\fRnitial + \fBMMMMMMMMMMMMMMMM MMMMMM\fRinor +.Ed +.Sh DESCRIPTION +The +.Nm +driver provides support for Cirrus Logic CD1400-based +.Tn EIA +.Tn RS-232C +.Pf ( Tn CCITT +.Tn V.24 ) +communications interfaces (ports) on Cyclades Cyclom-Y boards. +Each CD1400 provides 4 ports. +Cyclom-Y boards with various numbers of CD1400's are available. +This driver supports up to 8 CD1400's (32 ports) per board. +.Pp +Input and output for each line may set independently +to the following speeds: +50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 4800, 9600, +19200, 38400, 57600, or 115200 bps. +Other speeds of up to 150000 are supported by the termios interface +but not by the sgttyb compatibility interface. +The CD1400 is not fast enough to handle speeds above 115200 bps +effectively. +It can transmit on a single line at slightly more than 115200 bps, +but when 4 lines are active in both directions its limit is about +90000 bps on each line. +.\" XXX the following should be true for all serial drivers and +.\" should not be repeated in the man pages for all serial drivers. +.\" It was copied from sio.4. The only change was s/sio/cy/g. +.Pp +Serial ports controlled by the +.Nm +driver can be used for both `callin' and `callout'. +For each port there is a callin device and a callout device. +The minor number of the callout device is 128 higher +than that of the corresponding callin port. +The callin device is general purpose. +Processes opening it normally wait for carrier +and for the callout device to become inactive. +The callout device is used to steal the port from +processes waiting for carrier on the callin device. +Processes opening it do not wait for carrier +and put any processes waiting for carrier on the callin device into +a deeper sleep so that they do not conflict with the callout session. +The callout device is abused for handling programs that are supposed +to work on general ports and need to open the port without waiting +but are too stupid to do so. +.Pp +The +.Nm +driver also supports an initial-state and a lock-state control +device for each of the callin and the callout "data" devices. +The minor number of the initial-state device is 32 higher +than that of the corresponding data device. +The minor number of the lock-state device is 64 higher +than that of the corresponding data device. +The termios settings of a data device are copied +from those of the corresponding initial-state device +on first opens and are not inherited from previous opens. +Use +.Xr stty 1 +in the normal way on the initial-state devices to program +initial termios states suitable for your setup. +.Pp +The lock termios state acts as flags to disable changing +the termios state. +E.g., to lock a flag variable such as +CRTSCTS, use +.Em "stty crtscts" +on the lock-state device. +Speeds and special characters +may be locked by setting the corresponding value in the lock-state +device to any nonzero value. +.Pp +Correct programs talking to correctly wired external devices +work with almost arbitrary initial states and almost no locking, +but other setups may benefit from changing some of the default +initial state and locking the state. +In particular, the initial states for non (POSIX) standard flags +should be set to suit the devices attached and may need to be +locked to prevent buggy programs from changing them. +E.g., CRTSCTS should be locked on for devices that support +RTS/CTS handshaking at all times and off for devices that do not +support it at all. +CLOCAL should be locked on for devices +that do not support carrier. +HUPCL may be locked off if you do not +want to hang up for some reason. +In general, very bad things happen +if something is locked to the wrong state, and things should not +be locked for devices that support more than one setting. +The +CLOCAL flag on callin ports should be locked off for logins +to avoid certain security holes, but this needs to be done by +getty if the callin port is used for anything else. +.Ss Kernel Configuration Options +The +.Em CY_PCI_FASTINTR +option should be used to avoid suboptimal interrupt handling for +PCI Cyclades boards. +The PCI BIOS must be configured with the +.Nm +interrupt not shared with any other active device +for this option to work. +This option is not the default because it is currently harmful in +certain cases where it does not work. +.Sh FILES +.\" XXX more cloning: s/d/c/g and add a ? for the card number. +.Bl -tag -width /dev/ttyic?? -compact +.It Pa /dev/ttyc?? +for callin ports +.It Pa /dev/ttyic?? +.It Pa /dev/ttylc?? +corresponding callin initial-state and lock-state devices +.Pp +.\" XXX more cloning: s/a/c/g. No consistency :-(. +.It Pa /dev/cuac?? +for callout ports +.It Pa /dev/cuaic?? +.It Pa /dev/cualc?? +corresponding callout initial-state and lock-state devices +.El +.Pp +.Bl -tag -width /etc/rc.serial -compact +.It Pa /etc/rc.serial +examples of setting the initial-state and lock-state devices +.El +.Pp +The first question mark in these device names is short for the +card number +(a decimal number between 0 and 65535 inclusive). +The second question mark is short for the port number +(a letter in the range [0-9a-v]). +.Sh DIAGNOSTICS +.Bl -diag +.\" XXX back to s/sio/cy/g. +.It cy%d: silo overflow. +Problem in the interrupt handler. +.El +.Bl -diag +.It cy%d: interrupt-level buffer overflow. +Problem in the bottom half of the driver. +.El +.Bl -diag +.It cy%d: tty-level buffer overflow. +Problem in the application. +Input has arrived faster than the given module could process it +and some has been lost. +.El +.\" .Bl -diag +.\" .It sio%d: reduced fifo trigger level to %d. +.\" Attempting to avoid further silo overflows. +.\" .El +.Sh SEE ALSO +.Xr stty 1 , +.Xr termios 4 , +.Xr tty 4 , +.Xr comcontrol 8 , +.Xr pstat 8 +.Sh HISTORY +The +.Nm +driver is derived from the +.Nm sio +driver and the +.Nx +.Nm +driver and is +.Ud +.Sh BUGS +Serial consoles are not implemented. diff --git a/sys/conf/files b/sys/conf/files index e49b5085f9b8..332d0e6364f5 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -1425,6 +1425,9 @@ t6fw.fw optional cxgbe \ compile-with "${NORMAL_FW}" \ no-obj no-implicit-rule \ clean "t6fw.fw" +dev/cy/cy.c optional cy +dev/cy/cy_isa.c optional cy isa +dev/cy/cy_pci.c optional cy pci dev/cyapa/cyapa.c optional cyapa iicbus dev/dc/if_dc.c optional dc pci dev/dc/dcphy.c optional dc pci diff --git a/sys/dev/cy/cy.c b/sys/dev/cy/cy.c new file mode 100644 index 000000000000..ad4fa145cf7e --- /dev/null +++ b/sys/dev/cy/cy.c @@ -0,0 +1,2242 @@ +/*- + * cyclades cyclom-y serial driver + * Andrew Herbert , 17 August 1993 + * + * Copyright (c) 1993 Andrew Herbert. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name Andrew Herbert may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +__FBSDID("$FreeBSD$"); + +#include "opt_compat.h" + +/* + * TODO: + * Atomic COR change. + * Consoles. + */ + +/* + * Temporary compile-time configuration options. + */ +#define RxFifoThreshold (CD1400_RX_FIFO_SIZE / 2) + /* Number of chars in the receiver FIFO before an + * an interrupt is generated. Should depend on + * line speed. Needs to be about 6 on a 486DX33 + * for 4 active ports at 115200 bps. Why doesn't + * 10 work? + */ +#define PollMode /* Use polling-based irq service routine, not the + * hardware svcack lines. Must be defined for + * Cyclom-16Y boards. Less efficient for Cyclom-8Ys, + * and stops 4 * 115200 bps from working. + */ +#undef Smarts /* Enable slightly more CD1400 intelligence. Mainly + * the output CR/LF processing, plus we can avoid a + * few checks usually done in ttyinput(). + * + * XXX not fully implemented, and not particularly + * worthwhile. + */ +#undef CyDebug /* Include debugging code (not very expensive). */ + +/* These will go away. */ +#undef SOFT_CTS_OFLOW +#define SOFT_HOTCHAR + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include +#include + +#define NCY 10 /* KLUDGE */ + +#define NPORTS (NCY * CY_MAX_PORTS) + +#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s) + +/* We encode the cyclom unit number (cyu) in spare bits in the IVR's. */ +#define CD1400_xIVR_CHAN_SHIFT 3 +#define CD1400_xIVR_CHAN 0x1F + +/* + * ETC states. com->etc may also contain a hardware ETC command value, + * meaning that execution of that command is pending. + */ +#define ETC_NONE 0 /* we depend on bzero() setting this */ +#define ETC_BREAK_STARTING 1 +#define ETC_BREAK_STARTED 2 +#define ETC_BREAK_ENDING 3 +#define ETC_BREAK_ENDED 4 + +#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */ + +/* + * com state bits. + * (CS_BUSY | CS_TTGO) and (CS_BUSY | CS_TTGO | CS_ODEVREADY) must be higher + * than the other bits so that they can be tested as a group without masking + * off the low bits. + * + * The following com and tty flags correspond closely: + * CS_BUSY = TS_BUSY (maintained by cystart(), cypoll() and + * comstop()) + * CS_TTGO = ~TS_TTSTOP (maintained by cyparam() and cystart()) + * CS_CTS_OFLOW = CCTS_OFLOW (maintained by cyparam()) + * CS_RTS_IFLOW = CRTS_IFLOW (maintained by cyparam()) + * TS_FLUSH is not used. + * XXX I think TIOCSETA doesn't clear TS_TTSTOP when it clears IXON. + * XXX CS_*FLOW should be CF_*FLOW in com->flags (control flags not state). + */ +#define CS_BUSY 0x80 /* output in progress */ +#define CS_TTGO 0x40 /* output not stopped by XOFF */ +#define CS_ODEVREADY 0x20 /* external device h/w ready (CTS) */ +#define CS_CHECKMSR 1 /* check of MSR scheduled */ +#define CS_CTS_OFLOW 2 /* use CTS output flow control */ +#define CS_ODONE 4 /* output completed */ +#define CS_RTS_IFLOW 8 /* use RTS input flow control */ +#define CSE_ODONE 1 /* output transmitted */ + +static char const * const error_desc[] = { +#define CE_OVERRUN 0 + "silo overflow", +#define CE_INTERRUPT_BUF_OVERFLOW 1 + "interrupt-level buffer overflow", +#define CE_TTY_BUF_OVERFLOW 2 + "tty-level buffer overflow", +}; + +#define CE_NTYPES 3 +#define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum]) + +#ifdef SMP +#define COM_LOCK() mtx_lock_spin(&cy_lock) +#define COM_UNLOCK() mtx_unlock_spin(&cy_lock) +#else +#define COM_LOCK() +#define COM_UNLOCK() +#endif + +/* types. XXX - should be elsewhere */ +typedef u_char bool_t; /* boolean */ + +/* queue of linear buffers */ +struct lbq { + u_char *l_head; /* next char to process */ + u_char *l_tail; /* one past the last char to process */ + struct lbq *l_next; /* next in queue */ + bool_t l_queued; /* nonzero if queued */ +}; + +/* com device structure */ +struct com_s { + u_char state; /* miscellaneous flag bits */ + u_char etc; /* pending Embedded Transmit Command */ + u_char extra_state; /* more flag bits, separate for order trick */ + u_char gfrcr_image; /* copy of value read from GFRCR */ + u_char mcr_dtr; /* MCR bit that is wired to DTR */ + u_char mcr_image; /* copy of value written to MCR */ + u_char mcr_rts; /* MCR bit that is wired to RTS */ + int unit; /* unit number */ + + /* + * The high level of the driver never reads status registers directly + * because there would be too many side effects to handle conveniently. + * Instead, it reads copies of the registers stored here by the + * interrupt handler. + */ + u_char last_modem_status; /* last MSR read by intr handler */ + u_char prev_modem_status; /* last MSR handled by high level */ + + u_char *ibuf; /* start of input buffer */ + u_char *ibufend; /* end of input buffer */ + u_char *ibufold; /* old input buffer, to be freed */ + u_char *ihighwater; /* threshold in input buffer */ + u_char *iptr; /* next free spot in input buffer */ + int ibufsize; /* size of ibuf (not include error bytes) */ + int ierroff; /* offset of error bytes in ibuf */ + + struct lbq obufq; /* head of queue of output buffers */ + struct lbq obufs[2]; /* output buffers */ + + int cy_align; /* index for register alignment */ + cy_addr cy_iobase; /* base address of this port's cyclom */ + cy_addr iobase; /* base address of this port's cd1400 */ + int mcr_rts_reg; /* cd1400 reg number of reg holding mcr_rts */ + + struct tty *tp; /* cross reference */ + + u_long bytes_in; /* statistics */ + u_long bytes_out; + u_int delta_error_counts[CE_NTYPES]; + u_long error_counts[CE_NTYPES]; + + u_int recv_exception; /* exception chars received */ + u_int mdm; /* modem signal changes */ +#ifdef CyDebug + u_int start_count; /* no. of calls to cystart() */ + u_int start_real; /* no. of calls that did something */ +#endif + u_char car; /* CD1400 CAR shadow (if first unit in cd) */ + u_char channel_control;/* CD1400 CCR control command shadow */ + u_char cor[3]; /* CD1400 COR1-3 shadows */ + u_char intr_enable; /* CD1400 SRER shadow */ + + /* + * Data area for output buffers. Someday we should build the output + * buffer queue without copying data. + */ + u_char obuf1[256]; + u_char obuf2[256]; +}; + +devclass_t cy_devclass; +char cy_driver_name[] = "cy"; + +static void cd1400_channel_cmd(struct com_s *com, int cmd); +static void cd1400_channel_cmd_wait(struct com_s *com); +static void cd_etc(struct com_s *com, int etc); +static int cd_getreg(struct com_s *com, int reg); +static void cd_setreg(struct com_s *com, int reg, int val); +static void cyinput(struct com_s *com); +static int cyparam(struct tty *tp, struct termios *t); +static void cypoll(void *arg); +static void cysettimeout(void); +static int cysetwater(struct com_s *com, speed_t speed); +static int cyspeed(speed_t speed, u_long cy_clock, int *prescaler_io); +static void cystart(struct tty *tp); +static void comstop(struct tty *tp, int rw); +static timeout_t cywakeup; +static void disc_optim(struct tty *tp, struct termios *t, + struct com_s *com); + +static t_break_t cybreak; +static t_modem_t cymodem; +static t_open_t cyopen; +static t_close_t cyclose; + +#ifdef CyDebug +void cystatus(int unit); +#endif + +static struct mtx cy_lock; +static int cy_inited; + +/* table and macro for fast conversion from a unit number to its com struct */ +static struct com_s *p_cy_addr[NPORTS]; +#define cy_addr(unit) (p_cy_addr[unit]) + +static u_int cy_events; /* input chars + weighted output completions */ +static void *cy_fast_ih; +static void *cy_slow_ih; +static int cy_timeout; +static int cy_timeouts_until_log; +static struct callout_handle cy_timeout_handle + = CALLOUT_HANDLE_INITIALIZER(&cy_timeout_handle); + +#ifdef CyDebug +static u_int cd_inbs; +static u_int cy_inbs; +static u_int cd_outbs; +static u_int cy_outbs; +static u_int cy_svrr_probes; +static u_int cy_timeouts; +#endif + +static int cy_chip_offset[] = { + 0x0000, 0x0400, 0x0800, 0x0c00, 0x0200, 0x0600, 0x0a00, 0x0e00, +}; +static int cy_nr_cd1400s[NCY]; +static int cy_total_devices; +#undef RxFifoThreshold +static int volatile RxFifoThreshold = (CD1400_RX_FIFO_SIZE / 2); + +int +cy_units(cy_addr cy_iobase, int cy_align) +{ + int cyu; + u_char firmware_version; + int i; + cy_addr iobase; + + for (cyu = 0; cyu < CY_MAX_CD1400s; ++cyu) { + iobase = cy_iobase + (cy_chip_offset[cyu] << cy_align); + + /* wait for chip to become ready for new command */ + for (i = 0; i < 10; i++) { + DELAY(50); + if (!cd_inb(iobase, CD1400_CCR, cy_align)) + break; + } + + /* clear the GFRCR register */ + cd_outb(iobase, CD1400_GFRCR, cy_align, 0); + + /* issue a reset command */ + cd_outb(iobase, CD1400_CCR, cy_align, + CD1400_CCR_CMDRESET | CD1400_CCR_FULLRESET); + + /* XXX bogus initialization to avoid a gcc bug/warning. */ + firmware_version = 0; + + /* wait for the CD1400 to initialize itself */ + for (i = 0; i < 200; i++) { + DELAY(50); + + /* retrieve firmware version */ + firmware_version = cd_inb(iobase, CD1400_GFRCR, + cy_align); + if ((firmware_version & 0xf0) == 0x40) + break; + } + + /* + * Anything in the 0x40-0x4F range is fine. + * If one CD1400 is bad then we don't support higher + * numbered good ones on this board. + */ + if ((firmware_version & 0xf0) != 0x40) + break; + } + return (cyu); +} + +void * +cyattach_common(cy_addr cy_iobase, int cy_align) +{ + int adapter; + int cyu; + u_char firmware_version; + cy_addr iobase; + int ncyu; + int unit; + struct tty *tp; + + while (cy_inited != 2) + if (atomic_cmpset_int(&cy_inited, 0, 1)) { + mtx_init(&cy_lock, cy_driver_name, NULL, MTX_SPIN); + atomic_store_rel_int(&cy_inited, 2); + } + + adapter = cy_total_devices; + if ((u_int)adapter >= NCY) { + printf( + "cy%d: can't attach adapter: insufficient cy devices configured\n", + adapter); + return (NULL); + } + ncyu = cy_units(cy_iobase, cy_align); + if (ncyu == 0) + return (NULL); + cy_nr_cd1400s[adapter] = ncyu; + cy_total_devices++; + + unit = adapter * CY_MAX_PORTS; + for (cyu = 0; cyu < ncyu; ++cyu) { + int cdu; + + iobase = (cy_addr) (cy_iobase + + (cy_chip_offset[cyu] << cy_align)); + firmware_version = cd_inb(iobase, CD1400_GFRCR, cy_align); + + /* Set up a receive timeout period of than 1+ ms. */ + cd_outb(iobase, CD1400_PPR, cy_align, + howmany(CY_CLOCK(firmware_version) + / CD1400_PPR_PRESCALER, 1000)); + + for (cdu = 0; cdu < CD1400_NO_OF_CHANNELS; ++cdu, ++unit) { + struct com_s *com; + int s; + + com = malloc(sizeof *com, M_DEVBUF, M_NOWAIT | M_ZERO); + if (com == NULL) + break; + com->unit = unit; + com->gfrcr_image = firmware_version; + if (CY_RTS_DTR_SWAPPED(firmware_version)) { + com->mcr_dtr = CD1400_MSVR1_RTS; + com->mcr_rts = CD1400_MSVR2_DTR; + com->mcr_rts_reg = CD1400_MSVR2; + } else { + com->mcr_dtr = CD1400_MSVR2_DTR; + com->mcr_rts = CD1400_MSVR1_RTS; + com->mcr_rts_reg = CD1400_MSVR1; + } + com->obufs[0].l_head = com->obuf1; + com->obufs[1].l_head = com->obuf2; + + com->cy_align = cy_align; + com->cy_iobase = cy_iobase; + com->iobase = iobase; + com->car = ~CD1400_CAR_CHAN; + + tp = com->tp = ttyalloc(); + tp->t_open = cyopen; + tp->t_close = cyclose; + tp->t_oproc = cystart; + tp->t_stop = comstop; + tp->t_param = cyparam; + tp->t_break = cybreak; + tp->t_modem = cymodem; + tp->t_sc = com; + + if (cysetwater(com, tp->t_init_in.c_ispeed) != 0) { + free(com, M_DEVBUF); + return (NULL); + } + + s = spltty(); + cy_addr(unit) = com; + splx(s); + + if (cy_fast_ih == NULL) { + swi_add(&tty_intr_event, "cy", cypoll, NULL, SWI_TTY, 0, + &cy_fast_ih); + swi_add(&clk_intr_event, "cy", cypoll, NULL, SWI_CLOCK, 0, + &cy_slow_ih); + } + ttycreate(tp, TS_CALLOUT, "c%r%r", + adapter, unit % CY_MAX_PORTS); + } + } + + /* ensure an edge for the next interrupt */ + cy_outb(cy_iobase, CY_CLEAR_INTR, cy_align, 0); + + return (cy_addr(adapter * CY_MAX_PORTS)); +} + +static int +cyopen(struct tty *tp, struct cdev *dev) +{ + struct com_s *com; + int s; + + com = tp->t_sc; + s = spltty(); + /* + * We jump to this label after all non-interrupted sleeps to pick + * up any changes of the device state. + */ + + /* Encode per-board unit in LIVR for access in intr routines. */ + cd_setreg(com, CD1400_LIVR, + (com->unit & CD1400_xIVR_CHAN) << CD1400_xIVR_CHAN_SHIFT); + + /* + * Flush fifos. This requires a full channel reset which + * also disables the transmitter and receiver. Recover + * from this. + */ + cd1400_channel_cmd(com, + CD1400_CCR_CMDRESET | CD1400_CCR_CHANRESET); + cd1400_channel_cmd(com, com->channel_control); + + critical_enter(); + COM_LOCK(); + com->prev_modem_status = com->last_modem_status + = cd_getreg(com, CD1400_MSVR2); + cd_setreg(com, CD1400_SRER, + com->intr_enable + = CD1400_SRER_MDMCH | CD1400_SRER_RXDATA); + COM_UNLOCK(); + critical_exit(); + cysettimeout(); + return (0); +} + + +static void +cyclose(struct tty *tp) +{ + cy_addr iobase; + struct com_s *com; + int s; + int unit; + + com = tp->t_sc; + unit = com->unit; + iobase = com->iobase; + s = spltty(); + /* XXX */ + critical_enter(); + COM_LOCK(); + com->etc = ETC_NONE; + cd_setreg(com, CD1400_COR2, com->cor[1] &= ~CD1400_COR2_ETC); + COM_UNLOCK(); + critical_exit(); + cd_etc(com, CD1400_ETC_STOPBREAK); + cd1400_channel_cmd(com, CD1400_CCR_CMDRESET | CD1400_CCR_FTF); + + { + critical_enter(); + COM_LOCK(); + cd_setreg(com, CD1400_SRER, com->intr_enable = 0); + COM_UNLOCK(); + critical_exit(); + tp = com->tp; + if ((tp->t_cflag & HUPCL) + /* + * XXX we will miss any carrier drop between here and the + * next open. Perhaps we should watch DCD even when the + * port is closed; it is not sufficient to check it at + * the next open because it might go up and down while + * we're not watching. + */ + || (!tp->t_actout + && !(com->prev_modem_status & CD1400_MSVR2_CD) + && !(tp->t_init_in.c_cflag & CLOCAL)) + || !(tp->t_state & TS_ISOPEN)) { + (void)cymodem(tp, 0, SER_DTR); + + /* Disable receiver (leave transmitter enabled). */ + com->channel_control = CD1400_CCR_CMDCHANCTL + | CD1400_CCR_XMTEN + | CD1400_CCR_RCVDIS; + cd1400_channel_cmd(com, com->channel_control); + + ttydtrwaitstart(tp); + } + } + tp->t_actout = FALSE; + wakeup(&tp->t_actout); + wakeup(TSA_CARR_ON(tp)); /* restart any wopeners */ + splx(s); +} + +/* + * This function: + * a) needs to be called with COM_LOCK() held, and + * b) needs to return with COM_LOCK() held. + */ +static void +cyinput(struct com_s *com) +{ + u_char *buf; + int incc; + u_char line_status; + int recv_data; + struct tty *tp; + + buf = com->ibuf; + tp = com->tp; + if (!(tp->t_state & TS_ISOPEN)) { + cy_events -= (com->iptr - com->ibuf); + com->iptr = com->ibuf; + return; + } + if (tp->t_state & TS_CAN_BYPASS_L_RINT) { + /* + * Avoid the grotesquely inefficient lineswitch routine + * (ttyinput) in "raw" mode. It usually takes about 450 + * instructions (that's without canonical processing or echo!). + * slinput is reasonably fast (usually 40 instructions plus + * call overhead). + */ + + do { + /* + * This may look odd, but it is using save-and-enable + * semantics instead of the save-and-disable semantics + * that are used everywhere else. + */ + COM_UNLOCK(); + critical_exit(); + incc = com->iptr - buf; + if (tp->t_rawq.c_cc + incc > tp->t_ihiwat + && (com->state & CS_RTS_IFLOW + || tp->t_iflag & IXOFF) + && !(tp->t_state & TS_TBLOCK)) + ttyblock(tp); + com->delta_error_counts[CE_TTY_BUF_OVERFLOW] + += b_to_q((char *)buf, incc, &tp->t_rawq); + buf += incc; + tk_nin += incc; + tk_rawcc += incc; + tp->t_rawcc += incc; + ttwakeup(tp); + if (tp->t_state & TS_TTSTOP + && (tp->t_iflag & IXANY + || tp->t_cc[VSTART] == tp->t_cc[VSTOP])) { + tp->t_state &= ~TS_TTSTOP; + tp->t_lflag &= ~FLUSHO; + cystart(tp); + } + critical_enter(); + COM_LOCK(); + } while (buf < com->iptr); + } else { + do { + /* + * This may look odd, but it is using save-and-enable + * semantics instead of the save-and-disable semantics + * that are used everywhere else. + */ + COM_UNLOCK(); + critical_exit(); + line_status = buf[com->ierroff]; + recv_data = *buf++; + if (line_status + & (CD1400_RDSR_BREAK | CD1400_RDSR_FE | CD1400_RDSR_OE | CD1400_RDSR_PE)) { + if (line_status & CD1400_RDSR_BREAK) + recv_data |= TTY_BI; + if (line_status & CD1400_RDSR_FE) + recv_data |= TTY_FE; + if (line_status & CD1400_RDSR_OE) + recv_data |= TTY_OE; + if (line_status & CD1400_RDSR_PE) + recv_data |= TTY_PE; + } + ttyld_rint(tp, recv_data); + critical_enter(); + COM_LOCK(); + } while (buf < com->iptr); + } + cy_events -= (com->iptr - com->ibuf); + com->iptr = com->ibuf; + + /* + * There is now room for another low-level buffer full of input, + * so enable RTS if it is now disabled and there is room in the + * high-level buffer. + */ + if ((com->state & CS_RTS_IFLOW) && !(com->mcr_image & com->mcr_rts) && + !(tp->t_state & TS_TBLOCK)) + cd_setreg(com, com->mcr_rts_reg, + com->mcr_image |= com->mcr_rts); +} + +int +cyintr(void *vcom) +{ + struct com_s *basecom; + int baseu; + int cy_align; + cy_addr cy_iobase; + int cyu; + cy_addr iobase; + u_char status; + int unit; + + COM_LOCK(); /* XXX could this be placed down lower in the loop? */ + + basecom = (struct com_s *)vcom; + baseu = basecom->unit; + cy_align = basecom->cy_align; + cy_iobase = basecom->cy_iobase; + unit = baseu / CY_MAX_PORTS; + + /* check each CD1400 in turn */ + for (cyu = 0; cyu < cy_nr_cd1400s[unit]; ++cyu) { + iobase = (cy_addr) (cy_iobase + + (cy_chip_offset[cyu] << cy_align)); + /* poll to see if it has any work */ + status = cd_inb(iobase, CD1400_SVRR, cy_align); + if (status == 0) + continue; // XXX - FILTER_STRAY? +#ifdef CyDebug + ++cy_svrr_probes; +#endif + /* service requests as appropriate, giving priority to RX */ + if (status & CD1400_SVRR_RXRDY) { + struct com_s *com; + u_int count; + u_char *ioptr; + u_char line_status; + u_char recv_data; + u_char serv_type; +#ifdef PollMode + u_char save_rir; +#endif + +#ifdef PollMode + save_rir = cd_inb(iobase, CD1400_RIR, cy_align); + + /* enter rx service */ + cd_outb(iobase, CD1400_CAR, cy_align, save_rir); + cy_addr(baseu + cyu * CD1400_NO_OF_CHANNELS)->car + = save_rir & CD1400_CAR_CHAN; + + serv_type = cd_inb(iobase, CD1400_RIVR, cy_align); + com = cy_addr(baseu + + ((serv_type >> CD1400_xIVR_CHAN_SHIFT) + & CD1400_xIVR_CHAN)); +#else + /* ack receive service */ + serv_type = cy_inb(iobase, CY8_SVCACKR, cy_align); + + com = cy_addr(baseu + + + ((serv_type >> CD1400_xIVR_CHAN_SHIFT) + & CD1400_xIVR_CHAN)); +#endif + + if (serv_type & CD1400_RIVR_EXCEPTION) { + ++com->recv_exception; + line_status = cd_inb(iobase, CD1400_RDSR, cy_align); + /* break/unnattached error bits or real input? */ + recv_data = cd_inb(iobase, CD1400_RDSR, cy_align); +#ifndef SOFT_HOTCHAR + if (line_status & CD1400_RDSR_SPECIAL + && com->tp->t_hotchar != 0) + swi_sched(cy_fast_ih, 0); + +#endif +#if 1 /* XXX "intelligent" PFO error handling would break O error handling */ + if (line_status & (CD1400_RDSR_PE|CD1400_RDSR_FE|CD1400_RDSR_BREAK)) { + /* + Don't store PE if IGNPAR and BI if IGNBRK, + this hack allows "raw" tty optimization + works even if IGN* is set. + */ + if ( com->tp == NULL + || !(com->tp->t_state & TS_ISOPEN) + || ((line_status & (CD1400_RDSR_PE|CD1400_RDSR_FE)) + && (com->tp->t_iflag & IGNPAR)) + || ((line_status & CD1400_RDSR_BREAK) + && (com->tp->t_iflag & IGNBRK))) + goto cont; + if ( (line_status & (CD1400_RDSR_PE|CD1400_RDSR_FE)) + && (com->tp->t_state & TS_CAN_BYPASS_L_RINT) + && ((line_status & CD1400_RDSR_FE) + || ((line_status & CD1400_RDSR_PE) + && (com->tp->t_iflag & INPCK)))) + recv_data = 0; + } +#endif /* 1 */ + ++com->bytes_in; +#ifdef SOFT_HOTCHAR + if (com->tp->t_hotchar != 0 && recv_data == com->tp->t_hotchar) + swi_sched(cy_fast_ih, 0); +#endif + ioptr = com->iptr; + if (ioptr >= com->ibufend) + CE_RECORD(com, CE_INTERRUPT_BUF_OVERFLOW); + else { + if (com->tp != NULL && com->tp->t_do_timestamp) + microtime(&com->tp->t_timestamp); + ++cy_events; + ioptr[0] = recv_data; + ioptr[com->ierroff] = line_status; + com->iptr = ++ioptr; + if (ioptr == com->ihighwater + && com->state & CS_RTS_IFLOW) + cd_outb(iobase, com->mcr_rts_reg, + cy_align, + com->mcr_image &= + ~com->mcr_rts); + if (line_status & CD1400_RDSR_OE) + CE_RECORD(com, CE_OVERRUN); + } + goto cont; + } else { + int ifree; + + count = cd_inb(iobase, CD1400_RDCR, cy_align); + if (!count) + goto cont; + com->bytes_in += count; + ioptr = com->iptr; + ifree = com->ibufend - ioptr; + if (count > ifree) { + count -= ifree; + cy_events += ifree; + if (ifree != 0) { + if (com->tp != NULL && com->tp->t_do_timestamp) + microtime(&com->tp->t_timestamp); + do { + recv_data = cd_inb(iobase, + CD1400_RDSR, + cy_align); +#ifdef SOFT_HOTCHAR + if (com->tp->t_hotchar != 0 + && recv_data + == com->tp->t_hotchar) + swi_sched(cy_fast_ih, + 0); +#endif + ioptr[0] = recv_data; + ioptr[com->ierroff] = 0; + ++ioptr; + } while (--ifree != 0); + } + com->delta_error_counts + [CE_INTERRUPT_BUF_OVERFLOW] += count; + do { + recv_data = cd_inb(iobase, CD1400_RDSR, + cy_align); +#ifdef SOFT_HOTCHAR + if (com->tp->t_hotchar != 0 + && recv_data == com->tp->t_hotchar) + swi_sched(cy_fast_ih, 0); +#endif + } while (--count != 0); + } else { + if (com->tp != NULL && com->tp->t_do_timestamp) + microtime(&com->tp->t_timestamp); + if (ioptr <= com->ihighwater + && ioptr + count > com->ihighwater + && com->state & CS_RTS_IFLOW) + cd_outb(iobase, com->mcr_rts_reg, + cy_align, + com->mcr_image + &= ~com->mcr_rts); + cy_events += count; + do { + recv_data = cd_inb(iobase, CD1400_RDSR, + cy_align); +#ifdef SOFT_HOTCHAR + if (com->tp->t_hotchar != 0 + && recv_data == com->tp->t_hotchar) + swi_sched(cy_fast_ih, 0); +#endif + ioptr[0] = recv_data; + ioptr[com->ierroff] = 0; + ++ioptr; + } while (--count != 0); + } + com->iptr = ioptr; + } +cont: + + /* terminate service context */ +#ifdef PollMode + cd_outb(iobase, CD1400_RIR, cy_align, + save_rir + & ~(CD1400_RIR_RDIREQ | CD1400_RIR_RBUSY)); +#else + cd_outb(iobase, CD1400_EOSRR, cy_align, 0); +#endif + } + if (status & CD1400_SVRR_MDMCH) { + struct com_s *com; + u_char modem_status; +#ifdef PollMode + u_char save_mir; +#else + u_char vector; +#endif + +#ifdef PollMode + save_mir = cd_inb(iobase, CD1400_MIR, cy_align); + + /* enter modem service */ + cd_outb(iobase, CD1400_CAR, cy_align, save_mir); + cy_addr(baseu + cyu * CD1400_NO_OF_CHANNELS)->car + = save_mir & CD1400_CAR_CHAN; + + com = cy_addr(baseu + cyu * CD1400_NO_OF_CHANNELS + + (save_mir & CD1400_MIR_CHAN)); +#else + /* ack modem service */ + vector = cy_inb(iobase, CY8_SVCACKM, cy_align); + + com = cy_addr(baseu + + ((vector >> CD1400_xIVR_CHAN_SHIFT) + & CD1400_xIVR_CHAN)); +#endif + ++com->mdm; + modem_status = cd_inb(iobase, CD1400_MSVR2, cy_align); + if (modem_status != com->last_modem_status) { + /* + * Schedule high level to handle DCD changes. Note + * that we don't use the delta bits anywhere. Some + * UARTs mess them up, and it's easy to remember the + * previous bits and calculate the delta. + */ + com->last_modem_status = modem_status; + if (!(com->state & CS_CHECKMSR)) { + cy_events += LOTS_OF_EVENTS; + com->state |= CS_CHECKMSR; + swi_sched(cy_fast_ih, 0); + } + +#ifdef SOFT_CTS_OFLOW + /* handle CTS change immediately for crisp flow ctl */ + if (com->state & CS_CTS_OFLOW) { + if (modem_status & CD1400_MSVR2_CTS) { + com->state |= CS_ODEVREADY; + if (com->state >= (CS_BUSY | CS_TTGO + | CS_ODEVREADY) + && !(com->intr_enable + & CD1400_SRER_TXRDY)) + cd_outb(iobase, CD1400_SRER, + cy_align, + com->intr_enable + = com->intr_enable + & ~CD1400_SRER_TXMPTY + | CD1400_SRER_TXRDY); + } else { + com->state &= ~CS_ODEVREADY; + if (com->intr_enable + & CD1400_SRER_TXRDY) + cd_outb(iobase, CD1400_SRER, + cy_align, + com->intr_enable + = com->intr_enable + & ~CD1400_SRER_TXRDY + | CD1400_SRER_TXMPTY); + } + } +#endif + } + + /* terminate service context */ +#ifdef PollMode + cd_outb(iobase, CD1400_MIR, cy_align, + save_mir + & ~(CD1400_MIR_RDIREQ | CD1400_MIR_RBUSY)); +#else + cd_outb(iobase, CD1400_EOSRR, cy_align, 0); +#endif + } + if (status & CD1400_SVRR_TXRDY) { + struct com_s *com; +#ifdef PollMode + u_char save_tir; +#else + u_char vector; +#endif + +#ifdef PollMode + save_tir = cd_inb(iobase, CD1400_TIR, cy_align); + + /* enter tx service */ + cd_outb(iobase, CD1400_CAR, cy_align, save_tir); + cy_addr(baseu + cyu * CD1400_NO_OF_CHANNELS)->car + = save_tir & CD1400_CAR_CHAN; + + com = cy_addr(baseu + + cyu * CD1400_NO_OF_CHANNELS + + (save_tir & CD1400_TIR_CHAN)); +#else + /* ack transmit service */ + vector = cy_inb(iobase, CY8_SVCACKT, cy_align); + + com = cy_addr(baseu + + ((vector >> CD1400_xIVR_CHAN_SHIFT) + & CD1400_xIVR_CHAN)); +#endif + + if (com->etc != ETC_NONE) { + if (com->intr_enable & CD1400_SRER_TXRDY) { + /* + * Here due to sloppy SRER_TXRDY + * enabling. Ignore. Come back when + * tx is empty. + */ + cd_outb(iobase, CD1400_SRER, cy_align, + com->intr_enable + = (com->intr_enable + & ~CD1400_SRER_TXRDY) + | CD1400_SRER_TXMPTY); + goto terminate_tx_service; + } + switch (com->etc) { + case CD1400_ETC_SENDBREAK: + case CD1400_ETC_STOPBREAK: + /* + * Start the command. Come back on + * next tx empty interrupt, hopefully + * after command has been executed. + */ + cd_outb(iobase, CD1400_COR2, cy_align, + com->cor[1] |= CD1400_COR2_ETC); + cd_outb(iobase, CD1400_TDR, cy_align, + CD1400_ETC_CMD); + cd_outb(iobase, CD1400_TDR, cy_align, + com->etc); + if (com->etc == CD1400_ETC_SENDBREAK) + com->etc = ETC_BREAK_STARTING; + else + com->etc = ETC_BREAK_ENDING; + goto terminate_tx_service; + case ETC_BREAK_STARTING: + /* + * BREAK is now on. Continue with + * SRER_TXMPTY processing, hopefully + * don't come back. + */ + com->etc = ETC_BREAK_STARTED; + break; + case ETC_BREAK_STARTED: + /* + * Came back due to sloppy SRER_TXMPTY + * enabling. Hope again. + */ + break; + case ETC_BREAK_ENDING: + /* + * BREAK is now off. Continue with + * SRER_TXMPTY processing and don't + * come back. The SWI handler will + * restart tx interrupts if necessary. + */ + cd_outb(iobase, CD1400_COR2, cy_align, + com->cor[1] + &= ~CD1400_COR2_ETC); + com->etc = ETC_BREAK_ENDED; + if (!(com->state & CS_ODONE)) { + cy_events += LOTS_OF_EVENTS; + com->state |= CS_ODONE; + swi_sched(cy_fast_ih, 0); + } + break; + case ETC_BREAK_ENDED: + /* + * Shouldn't get here. Hope again. + */ + break; + } + } + if (com->intr_enable & CD1400_SRER_TXMPTY) { + if (!(com->extra_state & CSE_ODONE)) { + cy_events += LOTS_OF_EVENTS; + com->extra_state |= CSE_ODONE; + swi_sched(cy_fast_ih, 0); + } + cd_outb(iobase, CD1400_SRER, cy_align, + com->intr_enable + &= ~CD1400_SRER_TXMPTY); + goto terminate_tx_service; + } + if (com->state >= (CS_BUSY | CS_TTGO | CS_ODEVREADY)) { + u_char *ioptr; + u_int ocount; + + ioptr = com->obufq.l_head; + ocount = com->obufq.l_tail - ioptr; + if (ocount > CD1400_TX_FIFO_SIZE) + ocount = CD1400_TX_FIFO_SIZE; + com->bytes_out += ocount; + do + cd_outb(iobase, CD1400_TDR, cy_align, + *ioptr++); + while (--ocount != 0); + com->obufq.l_head = ioptr; + if (ioptr >= com->obufq.l_tail) { + struct lbq *qp; + + qp = com->obufq.l_next; + qp->l_queued = FALSE; + qp = qp->l_next; + if (qp != NULL) { + com->obufq.l_head = qp->l_head; + com->obufq.l_tail = qp->l_tail; + com->obufq.l_next = qp; + } else { + /* output just completed */ + com->state &= ~CS_BUSY; + + /* + * The setting of CSE_ODONE may be + * stale here. We currently only + * use it when CS_BUSY is set, and + * fixing it when we clear CS_BUSY + * is easiest. + */ + if (com->extra_state & CSE_ODONE) { + cy_events -= LOTS_OF_EVENTS; + com->extra_state &= ~CSE_ODONE; + } + + cd_outb(iobase, CD1400_SRER, cy_align, + com->intr_enable + = (com->intr_enable + & ~CD1400_SRER_TXRDY) + | CD1400_SRER_TXMPTY); + } + if (!(com->state & CS_ODONE)) { + cy_events += LOTS_OF_EVENTS; + com->state |= CS_ODONE; + + /* handle at high level ASAP */ + swi_sched(cy_fast_ih, 0); + } + } + } + + /* terminate service context */ +terminate_tx_service: +#ifdef PollMode + cd_outb(iobase, CD1400_TIR, cy_align, + save_tir + & ~(CD1400_TIR_RDIREQ | CD1400_TIR_RBUSY)); +#else + cd_outb(iobase, CD1400_EOSRR, cy_align, 0); +#endif + } + } + + /* ensure an edge for the next interrupt */ + cy_outb(cy_iobase, CY_CLEAR_INTR, cy_align, 0); + + swi_sched(cy_slow_ih, SWI_DELAY); + + COM_UNLOCK(); + return (FILTER_HANDLED); +} + +static void +cybreak(struct tty *tp, int sig) +{ + struct com_s *com; + + com = tp->t_sc; + if (sig) + cd_etc(com, CD1400_ETC_SENDBREAK); + else + cd_etc(com, CD1400_ETC_STOPBREAK); +} + +static void +cypoll(void *arg) +{ + int unit; + +#ifdef CyDebug + ++cy_timeouts; +#endif + if (cy_events == 0) + return; +repeat: + for (unit = 0; unit < NPORTS; ++unit) { + struct com_s *com; + int incc; + struct tty *tp; + + com = cy_addr(unit); + if (com == NULL) + continue; + tp = com->tp; + if (tp == NULL) { + /* + * XXX forget any events related to closed devices + * (actually never opened devices) so that we don't + * loop. + */ + critical_enter(); + COM_LOCK(); + incc = com->iptr - com->ibuf; + com->iptr = com->ibuf; + if (com->state & CS_CHECKMSR) { + incc += LOTS_OF_EVENTS; + com->state &= ~CS_CHECKMSR; + } + cy_events -= incc; + COM_UNLOCK(); + critical_exit(); + if (incc != 0) + log(LOG_DEBUG, + "cy%d: %d events for device with no tp\n", + unit, incc); + continue; + } + if (com->iptr != com->ibuf) { + critical_enter(); + COM_LOCK(); + cyinput(com); + COM_UNLOCK(); + critical_exit(); + } + if (com->state & CS_CHECKMSR) { + u_char delta_modem_status; + + critical_enter(); + COM_LOCK(); + cyinput(com); + delta_modem_status = com->last_modem_status + ^ com->prev_modem_status; + com->prev_modem_status = com->last_modem_status; + cy_events -= LOTS_OF_EVENTS; + com->state &= ~CS_CHECKMSR; + COM_UNLOCK(); + critical_exit(); + if (delta_modem_status & CD1400_MSVR2_CD) + ttyld_modem(tp, + com->prev_modem_status & CD1400_MSVR2_CD); + } + if (com->extra_state & CSE_ODONE) { + critical_enter(); + COM_LOCK(); + cy_events -= LOTS_OF_EVENTS; + com->extra_state &= ~CSE_ODONE; + COM_UNLOCK(); + critical_exit(); + if (!(com->state & CS_BUSY)) { + tp->t_state &= ~TS_BUSY; + ttwwakeup(com->tp); + } + if (com->etc != ETC_NONE) { + if (com->etc == ETC_BREAK_ENDED) + com->etc = ETC_NONE; + wakeup(&com->etc); + } + } + if (com->state & CS_ODONE) { + critical_enter(); + COM_LOCK(); + cy_events -= LOTS_OF_EVENTS; + com->state &= ~CS_ODONE; + COM_UNLOCK(); + critical_exit(); + ttyld_start(tp); + } + if (cy_events == 0) + break; + } + if (cy_events >= LOTS_OF_EVENTS) + goto repeat; +} + +static int +cyparam(struct tty *tp, struct termios *t) +{ + int bits; + int cflag; + struct com_s *com; + u_char cor_change; + u_long cy_clock; + int idivisor; + int iflag; + int iprescaler; + int itimeout; + int odivisor; + int oprescaler; + u_char opt; + int s; + + com = tp->t_sc; + + /* check requested parameters */ + cy_clock = CY_CLOCK(com->gfrcr_image); + idivisor = cyspeed(t->c_ispeed, cy_clock, &iprescaler); + if (idivisor <= 0) + return (EINVAL); + odivisor = cyspeed(t->c_ospeed != 0 ? t->c_ospeed : tp->t_ospeed, + cy_clock, &oprescaler); + if (odivisor <= 0) + return (EINVAL); + + /* parameters are OK, convert them to the com struct and the device */ + s = spltty(); + if (t->c_ospeed == 0) + (void)cymodem(tp, 0, SER_DTR); + else + (void)cymodem(tp, SER_DTR, 0); + + (void) cysetwater(com, t->c_ispeed); + + /* XXX we don't actually change the speed atomically. */ + + cd_setreg(com, CD1400_RBPR, idivisor); + cd_setreg(com, CD1400_RCOR, iprescaler); + cd_setreg(com, CD1400_TBPR, odivisor); + cd_setreg(com, CD1400_TCOR, oprescaler); + + /* + * channel control + * receiver enable + * transmitter enable (always set) + */ + cflag = t->c_cflag; + opt = CD1400_CCR_CMDCHANCTL | CD1400_CCR_XMTEN + | (cflag & CREAD ? CD1400_CCR_RCVEN : CD1400_CCR_RCVDIS); + if (opt != com->channel_control) { + com->channel_control = opt; + cd1400_channel_cmd(com, opt); + } + +#ifdef Smarts + /* set special chars */ + /* XXX if one is _POSIX_VDISABLE, can't use some others */ + if (t->c_cc[VSTOP] != _POSIX_VDISABLE) + cd_setreg(com, CD1400_SCHR1, t->c_cc[VSTOP]); + if (t->c_cc[VSTART] != _POSIX_VDISABLE) + cd_setreg(com, CD1400_SCHR2, t->c_cc[VSTART]); + if (t->c_cc[VINTR] != _POSIX_VDISABLE) + cd_setreg(com, CD1400_SCHR3, t->c_cc[VINTR]); + if (t->c_cc[VSUSP] != _POSIX_VDISABLE) + cd_setreg(com, CD1400_SCHR4, t->c_cc[VSUSP]); +#endif + + /* + * set channel option register 1 - + * parity mode + * stop bits + * char length + */ + opt = 0; + /* parity */ + if (cflag & PARENB) { + if (cflag & PARODD) + opt |= CD1400_COR1_PARODD; + opt |= CD1400_COR1_PARNORMAL; + } + iflag = t->c_iflag; + if (!(iflag & INPCK)) + opt |= CD1400_COR1_NOINPCK; + bits = 1 + 1; + /* stop bits */ + if (cflag & CSTOPB) { + ++bits; + opt |= CD1400_COR1_STOP2; + } + /* char length */ + switch (cflag & CSIZE) { + case CS5: + bits += 5; + opt |= CD1400_COR1_CS5; + break; + case CS6: + bits += 6; + opt |= CD1400_COR1_CS6; + break; + case CS7: + bits += 7; + opt |= CD1400_COR1_CS7; + break; + default: + bits += 8; + opt |= CD1400_COR1_CS8; + break; + } + cor_change = 0; + if (opt != com->cor[0]) { + cor_change |= CD1400_CCR_COR1; + cd_setreg(com, CD1400_COR1, com->cor[0] = opt); + } + + /* + * Set receive time-out period, normally to max(one char time, 5 ms). + */ + itimeout = howmany(1000 * bits, t->c_ispeed); +#ifdef SOFT_HOTCHAR +#define MIN_RTP 1 +#else +#define MIN_RTP 5 +#endif + if (itimeout < MIN_RTP) + itimeout = MIN_RTP; + if (!(t->c_lflag & ICANON) && t->c_cc[VMIN] != 0 && t->c_cc[VTIME] != 0 + && t->c_cc[VTIME] * 10 > itimeout) + itimeout = t->c_cc[VTIME] * 10; + if (itimeout > 255) + itimeout = 255; + cd_setreg(com, CD1400_RTPR, itimeout); + + /* + * set channel option register 2 - + * flow control + */ + opt = 0; +#ifdef Smarts + if (iflag & IXANY) + opt |= CD1400_COR2_IXANY; + if (iflag & IXOFF) + opt |= CD1400_COR2_IXOFF; +#endif +#ifndef SOFT_CTS_OFLOW + if (cflag & CCTS_OFLOW) + opt |= CD1400_COR2_CCTS_OFLOW; +#endif + critical_enter(); + COM_LOCK(); + if (opt != com->cor[1]) { + cor_change |= CD1400_CCR_COR2; + cd_setreg(com, CD1400_COR2, com->cor[1] = opt); + } + COM_UNLOCK(); + critical_exit(); + + /* + * set channel option register 3 - + * receiver FIFO interrupt threshold + * flow control + */ + opt = RxFifoThreshold; +#ifdef Smarts + if (t->c_lflag & ICANON) + opt |= CD1400_COR3_SCD34; /* detect INTR & SUSP chars */ + if (iflag & IXOFF) + /* detect and transparently handle START and STOP chars */ + opt |= CD1400_COR3_FCT | CD1400_COR3_SCD12; +#endif + if (opt != com->cor[2]) { + cor_change |= CD1400_CCR_COR3; + cd_setreg(com, CD1400_COR3, com->cor[2] = opt); + } + + /* notify the CD1400 if COR1-3 have changed */ + if (cor_change) + cd1400_channel_cmd(com, CD1400_CCR_CMDCORCHG | cor_change); + + /* + * set channel option register 4 - + * CR/NL processing + * break processing + * received exception processing + */ + opt = 0; + if (iflag & IGNCR) + opt |= CD1400_COR4_IGNCR; +#ifdef Smarts + /* + * we need a new ttyinput() for this, as we don't want to + * have ICRNL && INLCR being done in both layers, or to have + * synchronisation problems + */ + if (iflag & ICRNL) + opt |= CD1400_COR4_ICRNL; + if (iflag & INLCR) + opt |= CD1400_COR4_INLCR; +#endif + if (iflag & IGNBRK) + opt |= CD1400_COR4_IGNBRK | CD1400_COR4_NOBRKINT; + /* + * The `-ignbrk -brkint parmrk' case is not handled by the hardware, + * so only tell the hardware about -brkint if -parmrk. + */ + if (!(iflag & (BRKINT | PARMRK))) + opt |= CD1400_COR4_NOBRKINT; +#if 0 + /* XXX using this "intelligence" breaks reporting of overruns. */ + if (iflag & IGNPAR) + opt |= CD1400_COR4_PFO_DISCARD; + else { + if (iflag & PARMRK) + opt |= CD1400_COR4_PFO_ESC; + else + opt |= CD1400_COR4_PFO_NUL; + } +#else + opt |= CD1400_COR4_PFO_EXCEPTION; +#endif + cd_setreg(com, CD1400_COR4, opt); + + /* + * set channel option register 5 - + */ + opt = 0; + if (iflag & ISTRIP) + opt |= CD1400_COR5_ISTRIP; + if (t->c_iflag & IEXTEN) + /* enable LNEXT (e.g. ctrl-v quoting) handling */ + opt |= CD1400_COR5_LNEXT; +#ifdef Smarts + if (t->c_oflag & ONLCR) + opt |= CD1400_COR5_ONLCR; + if (t->c_oflag & OCRNL) + opt |= CD1400_COR5_OCRNL; +#endif + cd_setreg(com, CD1400_COR5, opt); + + /* + * We always generate modem status change interrupts for CD changes. + * Among other things, this is necessary to track TS_CARR_ON for + * pstat to print even when the driver doesn't care. CD changes + * should be rare so interrupts for them are not worth extra code to + * avoid. We avoid interrupts for other modem status changes (except + * for CTS changes when SOFT_CTS_OFLOW is configured) since this is + * simplest and best. + */ + + /* + * set modem change option register 1 + * generate modem interrupts on which 1 -> 0 input transitions + * also controls auto-DTR output flow-control, which we don't use + */ + opt = CD1400_MCOR1_CDzd; +#ifdef SOFT_CTS_OFLOW + if (cflag & CCTS_OFLOW) + opt |= CD1400_MCOR1_CTSzd; +#endif + cd_setreg(com, CD1400_MCOR1, opt); + + /* + * set modem change option register 2 + * generate modem interrupts on specific 0 -> 1 input transitions + */ + opt = CD1400_MCOR2_CDod; +#ifdef SOFT_CTS_OFLOW + if (cflag & CCTS_OFLOW) + opt |= CD1400_MCOR2_CTSod; +#endif + cd_setreg(com, CD1400_MCOR2, opt); + + /* + * XXX should have done this long ago, but there is too much state + * to change all atomically. + */ + critical_enter(); + COM_LOCK(); + + com->state &= ~CS_TTGO; + if (!(tp->t_state & TS_TTSTOP)) + com->state |= CS_TTGO; + if (cflag & CRTS_IFLOW) { + com->state |= CS_RTS_IFLOW; + /* + * If CS_RTS_IFLOW just changed from off to on, the change + * needs to be propagated to CD1400_MSVR1_RTS. This isn't urgent, + * so do it later by calling cystart() instead of repeating + * a lot of code from cystart() here. + */ + } else if (com->state & CS_RTS_IFLOW) { + com->state &= ~CS_RTS_IFLOW; + /* + * CS_RTS_IFLOW just changed from on to off. Force CD1400_MSVR1_RTS + * on here, since cystart() won't do it later. + */ + cd_setreg(com, com->mcr_rts_reg, + com->mcr_image |= com->mcr_rts); + } + + /* + * Set up state to handle output flow control. + * XXX - worth handling MDMBUF (DCD) flow control at the lowest level? + * Now has 10+ msec latency, while CTS flow has 50- usec latency. + */ + com->state |= CS_ODEVREADY; +#ifdef SOFT_CTS_OFLOW + com->state &= ~CS_CTS_OFLOW; + if (cflag & CCTS_OFLOW) { + com->state |= CS_CTS_OFLOW; + if (!(com->last_modem_status & CD1400_MSVR2_CTS)) + com->state &= ~CS_ODEVREADY; + } +#endif + /* XXX shouldn't call functions while intrs are disabled. */ + disc_optim(tp, t, com); +#if 0 + /* + * Recover from fiddling with CS_TTGO. We used to call cyintr1() + * unconditionally, but that defeated the careful discarding of + * stale input in cyopen(). + */ + if (com->state >= (CS_BUSY | CS_TTGO)) + cyintr1(com); +#endif + if (com->state >= (CS_BUSY | CS_TTGO | CS_ODEVREADY)) { + if (!(com->intr_enable & CD1400_SRER_TXRDY)) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable & ~CD1400_SRER_TXMPTY) + | CD1400_SRER_TXRDY); + } else { + if (com->intr_enable & CD1400_SRER_TXRDY) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable & ~CD1400_SRER_TXRDY) + | CD1400_SRER_TXMPTY); + } + + COM_UNLOCK(); + critical_exit(); + splx(s); + cystart(tp); + if (com->ibufold != NULL) { + free(com->ibufold, M_DEVBUF); + com->ibufold = NULL; + } + return (0); +} + +static int +cysetwater(struct com_s *com, speed_t speed) +{ + int cp4ticks; + u_char *ibuf; + int ibufsize; + struct tty *tp; + + /* + * Make the buffer size large enough to handle a softtty interrupt + * latency of about 2 ticks without loss of throughput or data + * (about 3 ticks if input flow control is not used or not honoured, + * but a bit less for CS5-CS7 modes). + */ + cp4ticks = speed / 10 / hz * 4; + for (ibufsize = 128; ibufsize < cp4ticks;) + ibufsize <<= 1; + if (ibufsize == com->ibufsize) { + return (0); + } + + /* + * Allocate input buffer. The extra factor of 2 in the size is + * to allow for an error byte for each input byte. + */ + ibuf = malloc(2 * ibufsize, M_DEVBUF, M_NOWAIT); + if (ibuf == NULL) { + return (ENOMEM); + } + + /* Initialize non-critical variables. */ + com->ibufold = com->ibuf; + com->ibufsize = ibufsize; + tp = com->tp; + if (tp != NULL) { + tp->t_ififosize = 2 * ibufsize; + tp->t_ispeedwat = (speed_t)-1; + tp->t_ospeedwat = (speed_t)-1; + } + + /* + * Read current input buffer, if any. Continue with interrupts + * disabled. + */ + critical_enter(); + COM_LOCK(); + if (com->iptr != com->ibuf) + cyinput(com); + + /*- + * Initialize critical variables, including input buffer watermarks. + * The external device is asked to stop sending when the buffer + * exactly reaches high water, or when the high level requests it. + * The high level is notified immediately (rather than at a later + * clock tick) when this watermark is reached. + * The buffer size is chosen so the watermark should almost never + * be reached. + * The low watermark is invisibly 0 since the buffer is always + * emptied all at once. + */ + com->iptr = com->ibuf = ibuf; + com->ibufend = ibuf + ibufsize; + com->ierroff = ibufsize; + com->ihighwater = ibuf + 3 * ibufsize / 4; + + COM_UNLOCK(); + critical_exit(); + return (0); +} + +static void +cystart(struct tty *tp) +{ + struct com_s *com; + int s; +#ifdef CyDebug + bool_t started; +#endif + + com = tp->t_sc; + s = spltty(); + +#ifdef CyDebug + ++com->start_count; + started = FALSE; +#endif + + critical_enter(); + COM_LOCK(); + if (tp->t_state & TS_TTSTOP) { + com->state &= ~CS_TTGO; + if (com->intr_enable & CD1400_SRER_TXRDY) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable & ~CD1400_SRER_TXRDY) + | CD1400_SRER_TXMPTY); + } else { + com->state |= CS_TTGO; + if (com->state >= (CS_BUSY | CS_TTGO | CS_ODEVREADY) + && !(com->intr_enable & CD1400_SRER_TXRDY)) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable & ~CD1400_SRER_TXMPTY) + | CD1400_SRER_TXRDY); + } + if (tp->t_state & TS_TBLOCK) { + if (com->mcr_image & com->mcr_rts && com->state & CS_RTS_IFLOW) +#if 0 + outb(com->modem_ctl_port, com->mcr_image &= ~CD1400_MSVR1_RTS); +#else + cd_setreg(com, com->mcr_rts_reg, + com->mcr_image &= ~com->mcr_rts); +#endif + } else { + if (!(com->mcr_image & com->mcr_rts) + && com->iptr < com->ihighwater + && com->state & CS_RTS_IFLOW) +#if 0 + outb(com->modem_ctl_port, com->mcr_image |= CD1400_MSVR1_RTS); +#else + cd_setreg(com, com->mcr_rts_reg, + com->mcr_image |= com->mcr_rts); +#endif + } + COM_UNLOCK(); + critical_exit(); + if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) { + ttwwakeup(tp); + splx(s); + return; + } + if (tp->t_outq.c_cc != 0) { + struct lbq *qp; + struct lbq *next; + + if (!com->obufs[0].l_queued) { +#ifdef CyDebug + started = TRUE; +#endif + com->obufs[0].l_tail + = com->obuf1 + q_to_b(&tp->t_outq, com->obuf1, + sizeof com->obuf1); + com->obufs[0].l_next = NULL; + com->obufs[0].l_queued = TRUE; + critical_enter(); + COM_LOCK(); + if (com->state & CS_BUSY) { + qp = com->obufq.l_next; + while ((next = qp->l_next) != NULL) + qp = next; + qp->l_next = &com->obufs[0]; + } else { + com->obufq.l_head = com->obufs[0].l_head; + com->obufq.l_tail = com->obufs[0].l_tail; + com->obufq.l_next = &com->obufs[0]; + com->state |= CS_BUSY; + if (com->state >= (CS_BUSY | CS_TTGO + | CS_ODEVREADY)) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable + & ~CD1400_SRER_TXMPTY) + | CD1400_SRER_TXRDY); + } + COM_UNLOCK(); + critical_exit(); + } + if (tp->t_outq.c_cc != 0 && !com->obufs[1].l_queued) { +#ifdef CyDebug + started = TRUE; +#endif + com->obufs[1].l_tail + = com->obuf2 + q_to_b(&tp->t_outq, com->obuf2, + sizeof com->obuf2); + com->obufs[1].l_next = NULL; + com->obufs[1].l_queued = TRUE; + critical_enter(); + COM_LOCK(); + if (com->state & CS_BUSY) { + qp = com->obufq.l_next; + while ((next = qp->l_next) != NULL) + qp = next; + qp->l_next = &com->obufs[1]; + } else { + com->obufq.l_head = com->obufs[1].l_head; + com->obufq.l_tail = com->obufs[1].l_tail; + com->obufq.l_next = &com->obufs[1]; + com->state |= CS_BUSY; + if (com->state >= (CS_BUSY | CS_TTGO + | CS_ODEVREADY)) + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable + & ~CD1400_SRER_TXMPTY) + | CD1400_SRER_TXRDY); + } + COM_UNLOCK(); + critical_exit(); + } + tp->t_state |= TS_BUSY; + } +#ifdef CyDebug + if (started) + ++com->start_real; +#endif +#if 0 + critical_enter(); + COM_LOCK(); + if (com->state >= (CS_BUSY | CS_TTGO)) + cyintr1(com); /* fake interrupt to start output */ + COM_UNLOCK(); + critical_exit(); +#endif + ttwwakeup(tp); + splx(s); +} + +static void +comstop(struct tty *tp, int rw) +{ + struct com_s *com; + bool_t wakeup_etc; + + com = tp->t_sc; + wakeup_etc = FALSE; + critical_enter(); + COM_LOCK(); + if (rw & FWRITE) { + com->obufs[0].l_queued = FALSE; + com->obufs[1].l_queued = FALSE; + if (com->extra_state & CSE_ODONE) { + cy_events -= LOTS_OF_EVENTS; + com->extra_state &= ~CSE_ODONE; + if (com->etc != ETC_NONE) { + if (com->etc == ETC_BREAK_ENDED) + com->etc = ETC_NONE; + wakeup_etc = TRUE; + } + } + com->tp->t_state &= ~TS_BUSY; + if (com->state & CS_ODONE) + cy_events -= LOTS_OF_EVENTS; + com->state &= ~(CS_ODONE | CS_BUSY); + } + if (rw & FREAD) { + /* XXX no way to reset only input fifo. */ + cy_events -= (com->iptr - com->ibuf); + com->iptr = com->ibuf; + } + COM_UNLOCK(); + critical_exit(); + if (wakeup_etc) + wakeup(&com->etc); + if (rw & FWRITE && com->etc == ETC_NONE) + cd1400_channel_cmd(com, CD1400_CCR_CMDRESET | CD1400_CCR_FTF); + cystart(tp); +} + +static int +cymodem(struct tty *tp, int sigon, int sigoff) +{ + struct com_s *com; + int mcr; + int msr; + + com = tp->t_sc; + if (sigon == 0 && sigoff == 0) { + sigon = 0; + mcr = com->mcr_image; + if (mcr & com->mcr_dtr) + sigon |= SER_DTR; + if (mcr & com->mcr_rts) + /* XXX wired on for Cyclom-8Ys */ + sigon |= SER_RTS; + + /* + * We must read the modem status from the hardware because + * we don't generate modem status change interrupts for all + * changes, so com->prev_modem_status is not guaranteed to + * be up to date. This is safe, unlike for sio, because + * reading the status register doesn't clear pending modem + * status change interrupts. + */ + msr = cd_getreg(com, CD1400_MSVR2); + + if (msr & CD1400_MSVR2_CTS) + sigon |= SER_CTS; + if (msr & CD1400_MSVR2_CD) + sigon |= SER_DCD; + if (msr & CD1400_MSVR2_DSR) + sigon |= SER_DSR; + if (msr & CD1400_MSVR2_RI) + /* XXX not connected except for Cyclom-16Y? */ + sigon |= SER_RI; + return (sigon); + } + mcr = com->mcr_image; + if (sigon & SER_DTR) + mcr |= com->mcr_dtr; + if (sigoff & SER_DTR) + mcr &= ~com->mcr_dtr; + if (sigon & SER_RTS) + mcr |= com->mcr_rts; + if (sigoff & SER_RTS) + mcr &= ~com->mcr_rts; + critical_enter(); + COM_LOCK(); + com->mcr_image = mcr; + cd_setreg(com, CD1400_MSVR1, mcr); + cd_setreg(com, CD1400_MSVR2, mcr); + COM_UNLOCK(); + critical_exit(); + return (0); +} + +static void +cysettimeout() +{ + struct com_s *com; + bool_t someopen; + int unit; + + /* + * Set our timeout period to 1 second if no polled devices are open. + * Otherwise set it to max(1/200, 1/hz). + * Enable timeouts iff some device is open. + */ + untimeout(cywakeup, (void *)NULL, cy_timeout_handle); + cy_timeout = hz; + someopen = FALSE; + for (unit = 0; unit < NPORTS; ++unit) { + com = cy_addr(unit); + if (com != NULL && com->tp != NULL + && com->tp->t_state & TS_ISOPEN) { + someopen = TRUE; + } + } + if (someopen) { + cy_timeouts_until_log = hz / cy_timeout; + cy_timeout_handle = timeout(cywakeup, (void *)NULL, + cy_timeout); + } else { + /* Flush error messages, if any. */ + cy_timeouts_until_log = 1; + cywakeup((void *)NULL); + untimeout(cywakeup, (void *)NULL, cy_timeout_handle); + } +} + +static void +cywakeup(void *chan) +{ + struct com_s *com; + int unit; + + cy_timeout_handle = timeout(cywakeup, (void *)NULL, cy_timeout); + + /* + * Check for and log errors, but not too often. + */ + if (--cy_timeouts_until_log > 0) + return; + cy_timeouts_until_log = hz / cy_timeout; + for (unit = 0; unit < NPORTS; ++unit) { + int errnum; + + com = cy_addr(unit); + if (com == NULL) + continue; + for (errnum = 0; errnum < CE_NTYPES; ++errnum) { + u_int delta; + u_long total; + + critical_enter(); + COM_LOCK(); + delta = com->delta_error_counts[errnum]; + com->delta_error_counts[errnum] = 0; + COM_UNLOCK(); + critical_exit(); + if (delta == 0) + continue; + total = com->error_counts[errnum] += delta; + log(LOG_ERR, "cy%d: %u more %s%s (total %lu)\n", + unit, delta, error_desc[errnum], + delta == 1 ? "" : "s", total); + } + } +} + +static void +disc_optim(struct tty *tp, struct termios *t, struct com_s *com) +{ +#ifndef SOFT_HOTCHAR + u_char opt; +#endif + + ttyldoptim(tp); +#ifndef SOFT_HOTCHAR + opt = com->cor[2] & ~CD1400_COR3_SCD34; + if (com->tp->t_hotchar != 0) { + cd_setreg(com, CD1400_SCHR3, com->tp->t_hotchar); + cd_setreg(com, CD1400_SCHR4, com->tp->t_hotchar); + opt |= CD1400_COR3_SCD34; + } + if (opt != com->cor[2]) { + cd_setreg(com, CD1400_COR3, com->cor[2] = opt); + cd1400_channel_cmd(com, CD1400_CCR_CMDCORCHG | CD1400_CCR_COR3); + } +#endif +} + +#ifdef Smarts +/* standard line discipline input routine */ +int +cyinput(int c, struct tty *tp) +{ + /* XXX duplicate ttyinput(), but without the IXOFF/IXON/ISTRIP/IPARMRK + * bits, as they are done by the CD1400. Hardly worth the effort, + * given that high-throughput session are raw anyhow. + */ +} +#endif /* Smarts */ + +static int +cyspeed(speed_t speed, u_long cy_clock, int *prescaler_io) +{ + int actual; + int error; + int divider; + int prescaler; + int prescaler_unit; + + if (speed == 0) + return (0); + if (speed < 0 || speed > 150000) + return (-1); + + /* determine which prescaler to use */ + for (prescaler_unit = 4, prescaler = 2048; prescaler_unit; + prescaler_unit--, prescaler >>= 2) { + if (cy_clock / prescaler / speed > 63) + break; + } + + divider = (cy_clock / prescaler * 2 / speed + 1) / 2; /* round off */ + if (divider > 255) + divider = 255; + actual = cy_clock/prescaler/divider; + + /* 10 times error in percent: */ + error = ((actual - (long)speed) * 2000 / (long)speed + 1) / 2; + + /* 3.0% max error tolerance */ + if (error < -30 || error > 30) + return (-1); + + *prescaler_io = prescaler_unit; + return (divider); +} + +static void +cd1400_channel_cmd(struct com_s *com, int cmd) +{ + cd1400_channel_cmd_wait(com); + cd_setreg(com, CD1400_CCR, cmd); + cd1400_channel_cmd_wait(com); +} + +static void +cd1400_channel_cmd_wait(struct com_s *com) +{ + struct timeval start; + struct timeval tv; + long usec; + + if (cd_getreg(com, CD1400_CCR) == 0) + return; + microtime(&start); + for (;;) { + if (cd_getreg(com, CD1400_CCR) == 0) + return; + microtime(&tv); + usec = 1000000 * (tv.tv_sec - start.tv_sec) + + tv.tv_usec - start.tv_usec; + if (usec >= 5000) { + log(LOG_ERR, + "cy%d: channel command timeout (%ld usec)\n", + com->unit, usec); + return; + } + } +} + +static void +cd_etc(struct com_s *com, int etc) +{ + + /* + * We can't change the hardware's ETC state while there are any + * characters in the tx fifo, since those characters would be + * interpreted as commands! Unputting characters from the fifo + * is difficult, so we wait up to 12 character times for the fifo + * to drain. The command will be delayed for up to 2 character + * times for the tx to become empty. Unputting characters from + * the tx holding and shift registers is impossible, so we wait + * for the tx to become empty so that the command is sure to be + * executed soon after we issue it. + */ + critical_enter(); + COM_LOCK(); + if (com->etc == etc) + goto wait; + if ((etc == CD1400_ETC_SENDBREAK + && (com->etc == ETC_BREAK_STARTING + || com->etc == ETC_BREAK_STARTED)) + || (etc == CD1400_ETC_STOPBREAK + && (com->etc == ETC_BREAK_ENDING || com->etc == ETC_BREAK_ENDED + || com->etc == ETC_NONE))) { + COM_UNLOCK(); + critical_exit(); + return; + } + com->etc = etc; + cd_setreg(com, CD1400_SRER, + com->intr_enable + = (com->intr_enable & ~CD1400_SRER_TXRDY) | CD1400_SRER_TXMPTY); +wait: + COM_UNLOCK(); + critical_exit(); + while (com->etc == etc + && tsleep(&com->etc, TTIPRI | PCATCH, "cyetc", 0) == 0) + continue; +} + +static int +cd_getreg(struct com_s *com, int reg) +{ + struct com_s *basecom; + u_char car; + int cy_align; + cy_addr iobase; +#ifdef SMP + int need_unlock; +#endif + int val; + + basecom = cy_addr(com->unit & ~(CD1400_NO_OF_CHANNELS - 1)); + car = com->unit & CD1400_CAR_CHAN; + cy_align = com->cy_align; + iobase = com->iobase; + critical_enter(); +#ifdef SMP + need_unlock = 0; + if (!mtx_owned(&cy_lock)) { + COM_LOCK(); + need_unlock = 1; + } +#endif + if (basecom->car != car) + cd_outb(iobase, CD1400_CAR, cy_align, basecom->car = car); + val = cd_inb(iobase, reg, cy_align); +#ifdef SMP + if (need_unlock) + COM_UNLOCK(); +#endif + critical_exit(); + return (val); +} + +static void +cd_setreg(struct com_s *com, int reg, int val) +{ + struct com_s *basecom; + u_char car; + int cy_align; + cy_addr iobase; +#ifdef SMP + int need_unlock; +#endif + + basecom = cy_addr(com->unit & ~(CD1400_NO_OF_CHANNELS - 1)); + car = com->unit & CD1400_CAR_CHAN; + cy_align = com->cy_align; + iobase = com->iobase; + critical_enter(); +#ifdef SMP + need_unlock = 0; + if (!mtx_owned(&cy_lock)) { + COM_LOCK(); + need_unlock = 1; + } +#endif + if (basecom->car != car) + cd_outb(iobase, CD1400_CAR, cy_align, basecom->car = car); + cd_outb(iobase, reg, cy_align, val); +#ifdef SMP + if (need_unlock) + COM_UNLOCK(); +#endif + critical_exit(); +} + +#ifdef CyDebug +/* useful in ddb */ +void +cystatus(int unit) +{ + struct com_s *com; + cy_addr iobase; + u_int ocount; + struct tty *tp; + + com = cy_addr(unit); + printf("info for channel %d\n", unit); + printf("------------------\n"); + printf("total cyclom service probes:\t%d\n", cy_svrr_probes); + printf("calls to upper layer:\t\t%d\n", cy_timeouts); + if (com == NULL) + return; + iobase = com->iobase; + printf("\n"); + printf("cd1400 base address:\\tt%p\n", iobase); + printf("saved channel_control:\t\t0x%02x\n", com->channel_control); + printf("saved cor1-3:\t\t\t0x%02x 0x%02x 0x%02x\n", + com->cor[0], com->cor[1], com->cor[2]); + printf("service request enable reg:\t0x%02x (0x%02x cached)\n", + cd_getreg(com, CD1400_SRER), com->intr_enable); + printf("service request register:\t0x%02x\n", + cd_inb(iobase, CD1400_SVRR, com->cy_align)); + printf("modem status:\t\t\t0x%02x (0x%02x cached)\n", + cd_getreg(com, CD1400_MSVR2), com->prev_modem_status); + printf("rx/tx/mdm interrupt registers:\t0x%02x 0x%02x 0x%02x\n", + cd_inb(iobase, CD1400_RIR, com->cy_align), + cd_inb(iobase, CD1400_TIR, com->cy_align), + cd_inb(iobase, CD1400_MIR, com->cy_align)); + printf("\n"); + printf("com state:\t\t\t0x%02x\n", com->state); + printf("calls to cystart():\t\t%d (%d useful)\n", + com->start_count, com->start_real); + printf("rx buffer chars free:\t\t%d\n", com->iptr - com->ibuf); + ocount = 0; + if (com->obufs[0].l_queued) + ocount += com->obufs[0].l_tail - com->obufs[0].l_head; + if (com->obufs[1].l_queued) + ocount += com->obufs[1].l_tail - com->obufs[1].l_head; + printf("tx buffer chars:\t\t%u\n", ocount); + printf("received chars:\t\t\t%d\n", com->bytes_in); + printf("received exceptions:\t\t%d\n", com->recv_exception); + printf("modem signal deltas:\t\t%d\n", com->mdm); + printf("transmitted chars:\t\t%d\n", com->bytes_out); + printf("\n"); + tp = com->tp; + if (tp != NULL) { + printf("tty state:\t\t\t0x%08x\n", tp->t_state); + printf( + "upper layer queue lengths:\t%d raw, %d canon, %d output\n", + tp->t_rawq.c_cc, tp->t_canq.c_cc, tp->t_outq.c_cc); + } else + printf("tty state:\t\t\tclosed\n"); +} +#endif /* CyDebug */ diff --git a/sys/dev/cy/cy_isa.c b/sys/dev/cy/cy_isa.c new file mode 100644 index 000000000000..448cc033dcb0 --- /dev/null +++ b/sys/dev/cy/cy_isa.c @@ -0,0 +1,150 @@ +/*- + * cyclades cyclom-y serial driver + * Andrew Herbert , 17 August 1993 + * + * Copyright (c) 1993 Andrew Herbert. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name Andrew Herbert may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Cyclades Y ISA serial interface driver + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include +#include + +static int cy_isa_attach(device_t dev); +static int cy_isa_probe(device_t dev); + +static device_method_t cy_isa_methods[] = { + /* Device interface. */ + DEVMETHOD(device_probe, cy_isa_probe), + DEVMETHOD(device_attach, cy_isa_attach), + + { 0, 0 } +}; + +static driver_t cy_isa_driver = { + cy_driver_name, + cy_isa_methods, + 0, +}; + +DRIVER_MODULE(cy, isa, cy_isa_driver, cy_devclass, 0, 0); + +static int +cy_isa_probe(device_t dev) +{ + struct resource *mem_res; + cy_addr iobase; + int error, mem_rid; + + if (isa_get_logicalid(dev) != 0) /* skip PnP probes */ + return (ENXIO); + + mem_rid = 0; + mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid, + RF_ACTIVE); + if (mem_res == NULL) { + device_printf(dev, "ioport resource allocation failed\n"); + return (ENXIO); + } + iobase = rman_get_virtual(mem_res); + + /* Cyclom-16Y hardware reset (Cyclom-8Ys don't care) */ + cy_inb(iobase, CY16_RESET, 0); /* XXX? */ + DELAY(500); /* wait for the board to get its act together */ + + /* this is needed to get the board out of reset */ + cy_outb(iobase, CY_CLEAR_INTR, 0, 0); + DELAY(500); + + error = (cy_units(iobase, 0) == 0 ? ENXIO : 0); + bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); + return (error); +} + +static int +cy_isa_attach(device_t dev) +{ + struct resource *irq_res, *mem_res; + void *irq_cookie, *vaddr, *vsc; + int irq_rid, mem_rid; + + irq_res = NULL; + mem_res = NULL; + + mem_rid = 0; + mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid, + RF_ACTIVE); + if (mem_res == NULL) { + device_printf(dev, "memory resource allocation failed\n"); + goto fail; + } + vaddr = rman_get_virtual(mem_res); + + vsc = cyattach_common(vaddr, 0); + if (vsc == NULL) { + device_printf(dev, "no ports found!\n"); + goto fail; + } + + irq_rid = 0; + irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid, + RF_SHAREABLE | RF_ACTIVE); + if (irq_res == NULL) { + device_printf(dev, "interrupt resource allocation failed\n"); + goto fail; + } + if (bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, + cyintr, NULL, vsc, &irq_cookie) != 0) { + device_printf(dev, "interrupt setup failed\n"); + goto fail; + } + + return (0); + +fail: + if (irq_res != NULL) + bus_release_resource(dev, SYS_RES_IRQ, irq_rid, irq_res); + if (mem_res != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); + return (ENXIO); +} diff --git a/sys/dev/cy/cy_pci.c b/sys/dev/cy/cy_pci.c new file mode 100644 index 000000000000..3f9a1826f6b5 --- /dev/null +++ b/sys/dev/cy/cy_pci.c @@ -0,0 +1,192 @@ +/*- + * Copyright (c) 1996, David Greenman + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice unmodified, this list of conditions, and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Cyclades Y PCI serial interface driver + */ + +#include +__FBSDID("$FreeBSD$"); + +#include "opt_cy_pci_fastintr.h" + +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include + +#define CY_PCI_BASE_ADDR0 0x10 +#define CY_PCI_BASE_ADDR1 0x14 +#define CY_PCI_BASE_ADDR2 0x18 + +#define CY_PLX_9050_ICS 0x4c +#define CY_PLX_9060_ICS 0x68 +#define CY_PLX_9050_ICS_IENABLE 0x040 +#define CY_PLX_9050_ICS_LOCAL_IENABLE 0x001 +#define CY_PLX_9050_ICS_LOCAL_IPOLARITY 0x002 +#define CY_PLX_9060_ICS_IENABLE 0x100 +#define CY_PLX_9060_ICS_LOCAL_IENABLE 0x800 + +/* Cyclom-Y Custom Register for PLX ID. */ +#define PLX_VER 0x3400 +#define PLX_9050 0x0b +#define PLX_9060 0x0c +#define PLX_9080 0x0d + +static int cy_pci_attach(device_t dev); +static int cy_pci_probe(device_t dev); + +static device_method_t cy_pci_methods[] = { + /* Device interface. */ + DEVMETHOD(device_probe, cy_pci_probe), + DEVMETHOD(device_attach, cy_pci_attach), + + { 0, 0 } +}; + +static driver_t cy_pci_driver = { + cy_driver_name, + cy_pci_methods, + 0, +}; + +DRIVER_MODULE(cy, pci, cy_pci_driver, cy_devclass, 0, 0); +MODULE_DEPEND(cy, pci, 1, 1, 1); + +static int +cy_pci_probe(dev) + device_t dev; +{ + u_int32_t device_id; + + device_id = pci_get_devid(dev); + device_id &= ~0x00060000; + if (device_id != 0x0100120e && device_id != 0x0101120e) + return (ENXIO); + device_set_desc(dev, "Cyclades Cyclom-Y Serial Adapter"); + return (BUS_PROBE_DEFAULT); +} + +static int +cy_pci_attach(dev) + device_t dev; +{ + struct resource *ioport_res, *irq_res, *mem_res; + void *irq_cookie, *vaddr, *vsc; + u_int32_t ioport; + int irq_setup, ioport_rid, irq_rid, mem_rid; + u_char plx_ver; + + ioport_res = NULL; + irq_res = NULL; + mem_res = NULL; + + ioport_rid = CY_PCI_BASE_ADDR1; + ioport_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &ioport_rid, + RF_ACTIVE); + if (ioport_res == NULL) { + device_printf(dev, "ioport resource allocation failed\n"); + goto fail; + } + ioport = rman_get_start(ioport_res); + + mem_rid = CY_PCI_BASE_ADDR2; + mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mem_rid, + RF_ACTIVE); + if (mem_res == NULL) { + device_printf(dev, "memory resource allocation failed\n"); + goto fail; + } + vaddr = rman_get_virtual(mem_res); + + vsc = cyattach_common(vaddr, 1); + if (vsc == NULL) { + device_printf(dev, "no ports found!\n"); + goto fail; + } + + irq_rid = 0; + irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid, + RF_SHAREABLE | RF_ACTIVE); + if (irq_res == NULL) { + device_printf(dev, "interrupt resource allocation failed\n"); + goto fail; + } +#ifdef CY_PCI_FASTINTR + irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, + cyintr, NULL, vsc, &irq_cookie); +#else + irq_setup = ENXIO; +#endif + if (irq_setup != 0) + irq_setup = bus_setup_intr(dev, irq_res, INTR_TYPE_TTY, + NULL, (driver_intr_t *)cyintr, vsc, &irq_cookie); + if (irq_setup != 0) { + device_printf(dev, "interrupt setup failed\n"); + goto fail; + } + + /* + * Enable the "local" interrupt input to generate a + * PCI interrupt. + */ + plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f; + switch (plx_ver) { + case PLX_9050: + outw(ioport + CY_PLX_9050_ICS, + CY_PLX_9050_ICS_IENABLE | CY_PLX_9050_ICS_LOCAL_IENABLE | + CY_PLX_9050_ICS_LOCAL_IPOLARITY); + break; + case PLX_9060: + case PLX_9080: + default: /* Old board, use PLX_9060 values. */ + outw(ioport + CY_PLX_9060_ICS, + inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE | + CY_PLX_9060_ICS_LOCAL_IENABLE); + break; + } + + return (0); + +fail: + if (ioport_res != NULL) + bus_release_resource(dev, SYS_RES_IOPORT, ioport_rid, + ioport_res); + if (irq_res != NULL) + bus_release_resource(dev, SYS_RES_IRQ, irq_rid, irq_res); + if (mem_res != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, mem_rid, mem_res); + return (ENXIO); +} diff --git a/sys/dev/cy/cyreg.h b/sys/dev/cy/cyreg.h new file mode 100644 index 000000000000..88a36eb4a65e --- /dev/null +++ b/sys/dev/cy/cyreg.h @@ -0,0 +1,75 @@ +/*- + * Copyright (c) 1995 Bruce Evans. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Definitions for Cyclades Cyclom-Y serial boards. + */ + +/* + * Cyclades register offsets. These are physical offsets for ISA boards + * and physical offsets divided by 2 for PCI boards. + */ +#define CY8_SVCACKR 0x100 /* (r) */ +#define CY8_SVCACKT 0x200 /* (r) */ +#define CY8_SVCACKM 0x300 /* (r) */ +#define CY16_RESET 0x1400 /* (r) */ +#define CY_CLEAR_INTR 0x1800 /* intr ack address (w) */ + +#define CY_MAX_CD1400s 8 /* for Cyclom-32Y */ + +#define CY_CLOCK(version) ((version) >= 0x48 ? 60000000 : 25000000) +#define CY_RTS_DTR_SWAPPED(version) ((version) >= 0x48) + +/* + * The `cd' macros are for access to cd1400 registers. The `cy' macros + * are for access to Cyclades registers. Both sets of macros scale the + * register number to get an offset, but the scales are different for + * mostly historical reasons. + */ +#ifdef CyDebug +#define cd_inb(iobase, reg, cy_align) \ + (++cd_inbs, *((iobase) + (2 * (reg) << (cy_align)))) +#define cy_inb(iobase, reg, cy_align) \ + (++cy_inbs, *((iobase) + ((reg) << (cy_align)))) +#define cd_outb(iobase, reg, cy_align, val) \ + (++cd_outbs, (void)(*((iobase) + (2 * (reg) << (cy_align))) = (val))) +#define cy_outb(iobase, reg, cy_align, val) \ + (++cy_outbs, (void)(*((iobase) + ((reg) << (cy_align))) = (val))) +#else +#define cd_inb(iobase, reg, cy_align) \ + (*((iobase) + (2 * (reg) << (cy_align)))) +#define cy_inb(iobase, reg, cy_align) \ + (*((iobase) + ((reg) << (cy_align)))) +#define cd_outb(iobase, reg, cy_align, val) \ + ((void)(*((iobase) + (2 * (reg) << (cy_align))) = (val))) +#define cy_outb(iobase, reg, cy_align, val) \ + ((void)(*((iobase) + ((reg) << (cy_align))) = (val))) +#endif diff --git a/sys/dev/cy/cyvar.h b/sys/dev/cy/cyvar.h new file mode 100644 index 000000000000..6b770e8761fa --- /dev/null +++ b/sys/dev/cy/cyvar.h @@ -0,0 +1,36 @@ +/*- + * Copyright (c) 2004 Bruce D. Evans + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +typedef u_char volatile *cy_addr; + +extern devclass_t cy_devclass; +extern char cy_driver_name[]; + +void *cyattach_common(cy_addr cy_iobase, int cy_align); +driver_filter_t cyintr; +int cy_units(cy_addr cy_iobase, int cy_align);