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freebsd-skq/sys/i386/isa/rc.c

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RISCom/8 driver
1995-05-12 15:09:29 +00:00
/*
* Copyright (C) 1995 by Pavel Antonov, Moscow, Russia.
* Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia.
* 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 AUTHORS ``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.
*/
/*
* SDL Communications Riscom/8 (based on Cirrus Logic CL-CD180) driver
*
*/
#include "rc.h"
Remove SC_KBD_PROBE_WORKS option and replace it with a simple run-time flag bit (0x0008) in the sc driver configuration line. This way it's easy to boink a generic kernel. Also, document and place in an opt_ file the #define's for overriding which serial port is the system console. Approved by: sos
1996-10-23 07:29:44 +00:00
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#if NRC > 0
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
/*#define RCDEBUG*/
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/dkstat.h>
Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined. Fixed everything that depended on getting fcntl.h stuff from the wrong place. Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +00:00
#include <sys/fcntl.h>
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#include <sys/kernel.h>
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
#ifdef DEVFS
#include <sys/devfsext.h>
#endif /*DEVFS*/
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#include <machine/clock.h>
#include <i386/isa/isa_device.h>
#include <i386/isa/ic/cd180.h>
#include <i386/isa/rcreg.h>
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Prototypes */
Staticize and cleanup.
1995-12-10 13:40:44 +00:00
static int rcprobe __P((struct isa_device *));
static int rcattach __P((struct isa_device *));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Moved prototypes for devswitch functions from conf.c and driver sources to <machine/conf.h>. conf.h was mechanically generated by `grep ^d_ conf.c >conf.h'. This accounts for part of its ugliness. The prototypes should be moved back to the driver sources when the functions are staticalized.
1995-11-04 13:25:33 +00:00
/*-
* This space intentionally left blank to stop __LINE__ from screwing up
* regression tests :-(.
*
*
Added `#include "ioconf.h"' to <machine/conf.h> and cleaned up the misplaced extern declarations (mostly prototypes of interrupt handlers) that this exposed. The prototypes should be moved back to the driver sources when the functions are staticalized. Added idempotency guards to <machine/conf.h>. "ioconf.h" can't be included when building LKMs so define a wart in bsd.kmod.mk to help guard against including it.
1995-11-04 17:08:13 +00:00
*
Moved prototypes for devswitch functions from conf.c and driver sources to <machine/conf.h>. conf.h was mechanically generated by `grep ^d_ conf.c >conf.h'. This accounts for part of its ugliness. The prototypes should be moved back to the driver sources when the functions are staticalized.
1995-11-04 13:25:33 +00:00
*/
RISCom/8 driver
1995-05-12 15:09:29 +00:00
void rcpoll __P((void));
#define rcin(port) RC_IN (nec, port)
#define rcout(port,v) RC_OUT (nec, port, v)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
#define WAITFORCCR(u,c) rc_wait0(nec, (u), (c), __LINE__)
#define CCRCMD(u,c,cmd) WAITFORCCR((u), (c)); rcout(CD180_CCR, (cmd))
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
#define RC_IBUFSIZE 256
#define RB_I_HIGH_WATER (TTYHOG - 2 * RC_IBUFSIZE)
#define RC_OBUFSIZE 512
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#define RC_IHIGHWATER (3 * RC_IBUFSIZE / 4)
#define INPUT_FLAGS_SHIFT (2 * RC_IBUFSIZE)
#define LOTS_OF_EVENTS 64
#define RC_FAKEID 0x10
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
#define RC_PROBED 1
#define RC_ATTACHED 2
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#define GET_UNIT(dev) (minor(dev) & 0x3F)
#define CALLOUT(dev) (minor(dev) & 0x80)
/* For isa routines */
struct isa_driver rcdriver = {
rcprobe, rcattach, "rc"
};
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static d_open_t rcopen;
static d_close_t rcclose;
static d_read_t rcread;
static d_write_t rcwrite;
static d_ioctl_t rcioctl;
static d_stop_t rcstop;
Removed new alias d_size_t for d_psize_t. Removed old aliases d_rdwr_t and d_ttycv_t for d_read_t/d_write_t and d_devtotty_t. Sorted declarations of switch functions into switch order. Removed duplicated comments and declarations of nonexistent switch functions.
1995-12-10 15:55:34 +00:00
static d_devtotty_t rcdevtotty;
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
#define CDEV_MAJOR 63
Julian forgot to make the *devsw structures static.
1995-12-08 23:23:00 +00:00
static struct cdevsw rc_cdevsw =
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
{ rcopen, rcclose, rcread, rcwrite, /*63*/
Replaced nxreset by noreset (if the reset function gets called, then the device must be configured. It's hard to tell whether a reset function should be noreset or nullreset since reset functions are never called. Most drivers use nullreset but noreset has the advantage of complaining if somehow gets called).
1995-12-10 20:54:38 +00:00
rcioctl, rcstop, noreset, rcdevtotty,/* rc */
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
ttselect, nommap, NULL, "rc", NULL, -1 };
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Per-board structure */
static struct rc_softc {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
u_int rcb_probed; /* 1 - probed, 2 - attached */
RISCom/8 driver
1995-05-12 15:09:29 +00:00
u_int rcb_addr; /* Base I/O addr */
u_int rcb_unit; /* unit # */
u_char rcb_dtr; /* DTR status */
struct rc_chans *rcb_baserc; /* base rc ptr */
} rc_softc[NRC];
/* Per-channel structure */
static struct rc_chans {
struct rc_softc *rc_rcb; /* back ptr */
u_short rc_flags; /* Misc. flags */
int rc_chan; /* Channel # */
u_char rc_ier; /* intr. enable reg */
u_char rc_msvr; /* modem sig. status */
u_char rc_cor2; /* options reg */
u_char rc_pendcmd; /* special cmd pending */
u_int rc_dtrwait; /* dtr timeout */
u_int rc_dcdwaits; /* how many waits DCD in open */
u_char rc_hotchar; /* end packed optimize */
struct tty *rc_tp; /* tty struct */
u_char *rc_iptr; /* Chars input buffer */
u_char *rc_hiwat; /* hi-water mark */
u_char *rc_bufend; /* end of buffer */
u_char *rc_optr; /* ptr in output buf */
u_char *rc_obufend; /* end of output buf */
u_char rc_ibuf[4 * RC_IBUFSIZE]; /* input buffer */
u_char rc_obuf[RC_OBUFSIZE]; /* output buffer */
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
#ifdef DEVFS
void *devfs_token;
#endif
RISCom/8 driver
1995-05-12 15:09:29 +00:00
} rc_chans[NRC * CD180_NCHAN];
static int rc_scheduled_event = 0;
/* for pstat -t */
Staticize and cleanup.
1995-12-10 13:40:44 +00:00
static struct tty rc_tty[NRC * CD180_NCHAN];
Clean up -Wunused warnings. Reviewed by: bde
1996-06-12 05:11:41 +00:00
static const int nrc_tty = NRC * CD180_NCHAN;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Flags */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
#define RC_DTR_OFF 0x0001 /* DTR wait, for close/open */
#define RC_ACTOUT 0x0002 /* Dial-out port active */
#define RC_RTSFLOW 0x0004 /* RTS flow ctl enabled */
#define RC_CTSFLOW 0x0008 /* CTS flow ctl enabled */
#define RC_DORXFER 0x0010 /* RXFER event planned */
#define RC_DOXXFER 0x0020 /* XXFER event planned */
#define RC_MODCHG 0x0040 /* Modem status changed */
#define RC_OSUSP 0x0080 /* Output suspended */
#define RC_OSBUSY 0x0100 /* start() routine in progress */
#define RC_WAS_BUFOVFL 0x0200 /* low-level buffer ovferflow */
#define RC_WAS_SILOVFL 0x0400 /* silo buffer overflow */
#define RC_SEND_RDY 0x0800 /* ready to send */
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Table for translation of RCSR status bits to internal form */
static int rc_rcsrt[16] = {
0, TTY_OE, TTY_FE,
TTY_FE|TTY_OE, TTY_PE, TTY_PE|TTY_OE,
TTY_PE|TTY_FE, TTY_PE|TTY_FE|TTY_OE, TTY_BI,
TTY_BI|TTY_OE, TTY_BI|TTY_FE, TTY_BI|TTY_FE|TTY_OE,
TTY_BI|TTY_PE, TTY_BI|TTY_PE|TTY_OE, TTY_BI|TTY_PE|TTY_FE,
TTY_BI|TTY_PE|TTY_FE|TTY_OE
};
/* Static prototypes */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void rc_hwreset __P((int, int, unsigned int));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
static int rc_test __P((int, int));
static void rc_discard_output __P((struct rc_chans *));
static void rc_hardclose __P((struct rc_chans *));
static int rc_modctl __P((struct rc_chans *, int, int));
static void rc_start __P((struct tty *));
static int rc_param __P((struct tty *, struct termios *));
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void rc_reinit __P((struct rc_softc *));
#ifdef RCDEBUG
static void printrcflags();
#endif
RISCom/8 driver
1995-05-12 15:09:29 +00:00
static timeout_t rc_dtrwakeup;
static timeout_t rc_wakeup;
static void disc_optim __P((struct tty *tp, struct termios *t, struct rc_chans *));
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void rc_wait0 __P((int nec, int unit, int chan, int line));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/**********************************************/
/* Quick device probing */
Staticize and cleanup.
1995-12-10 13:40:44 +00:00
static int
rcprobe(dvp)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
struct isa_device *dvp;
{
int irq = ffs(dvp->id_irq) - 1;
register int nec = dvp->id_iobase;
if (dvp->id_unit > NRC)
return 0;
if (!RC_VALIDADDR(nec)) {
printf("rc%d: illegal base address %x\n", nec);
return 0;
}
if (!RC_VALIDIRQ(irq)) {
printf("rc%d: illegal IRQ value %d\n", irq);
return 0;
}
rcout(CD180_PPRL, 0x22); /* Random values to Prescale reg. */
rcout(CD180_PPRH, 0x11);
if (rcin(CD180_PPRL) != 0x22 || rcin(CD180_PPRH) != 0x11)
return 0;
/* Now, test the board more thoroughly, with diagnostic */
if (rc_test(nec, dvp->id_unit))
return 0;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc_softc[dvp->id_unit].rcb_probed = RC_PROBED;
return 0xF;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Staticize and cleanup.
1995-12-10 13:40:44 +00:00
static int
rcattach(dvp)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
struct isa_device *dvp;
{
Clean up -Wunused warnings. Reviewed by: bde
1996-06-12 05:11:41 +00:00
register int chan, nec = dvp->id_iobase;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
struct rc_softc *rcb = &rc_softc[dvp->id_unit];
struct rc_chans *rc = &rc_chans[dvp->id_unit * CD180_NCHAN];
static int rc_wakeup_started = 0;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
struct tty *tp;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Thorooughly test the device */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (rcb->rcb_probed != RC_PROBED)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
return 0;
rcb->rcb_addr = nec;
rcb->rcb_dtr = 0;
rcb->rcb_baserc = rc;
/*rcb->rcb_chipid = 0x10 + dvp->id_unit;*/
printf("rc%d: %d chans, firmware rev. %c\n", dvp->id_unit,
CD180_NCHAN, (rcin(CD180_GFRCR) & 0xF) + 'A');
for (chan = 0; chan < CD180_NCHAN; chan++, rc++) {
rc->rc_rcb = rcb;
rc->rc_chan = chan;
rc->rc_iptr = rc->rc_ibuf;
rc->rc_bufend = &rc->rc_ibuf[RC_IBUFSIZE];
rc->rc_hiwat = &rc->rc_ibuf[RC_IHIGHWATER];
rc->rc_flags = rc->rc_ier = rc->rc_msvr = 0;
rc->rc_cor2 = rc->rc_pendcmd = 0;
rc->rc_optr = rc->rc_obufend = rc->rc_obuf;
rc->rc_dtrwait = 3 * hz;
rc->rc_dcdwaits= 0;
rc->rc_hotchar = 0;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
tp = rc->rc_tp = &rc_tty[chan];
ttychars(tp);
tp->t_lflag = tp->t_iflag = tp->t_oflag = 0;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
#ifdef DEVFS
/* FIX THIS to reflect real devices */
Switched from using devfs_add_sw() to using devfs_add_swf() Reviewed by: julian@freebsd.org
1996-03-28 14:29:52 +00:00
rc->devfs_token =
devfs_add_devswf(&rc_cdevsw,
(dvp->id_unit * CD180_NCHAN) + chan,
DV_CHR, 0, 0, 0600, "rc%d.%d",
dvp->id_unit, chan);
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
#endif
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcb->rcb_probed = RC_ATTACHED;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (!rc_wakeup_started) {
rc_wakeup((void *)NULL);
rc_wakeup_started = 0;
}
return 1;
}
/* RC interrupt handling */
void rcintr(unit)
int unit;
{
register struct rc_softc *rcb = &rc_softc[unit];
register struct rc_chans *rc;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
register int nec, resid;
register u_char val, iack, bsr, ucnt, *optr;
int good_data, t_state;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (rcb->rcb_probed != RC_ATTACHED) {
printf("rc%d: bogus interrupt\n", unit);
return;
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
nec = rcb->rcb_addr;
bsr = ~(rcin(RC_BSR));
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (!(bsr & (RC_BSR_TOUT|RC_BSR_RXINT|RC_BSR_TXINT|RC_BSR_MOINT))) {
printf("rc%d: extra interrupt\n", unit);
rcout(CD180_EOIR, 0);
return;
}
while (bsr & (RC_BSR_TOUT|RC_BSR_RXINT|RC_BSR_TXINT|RC_BSR_MOINT)) {
#ifdef RCDEBUG_DETAILED
printf("rc%d: intr (%02x) %s%s%s%s\n", unit, bsr,
(bsr & RC_BSR_TOUT)?"TOUT ":"",
(bsr & RC_BSR_RXINT)?"RXINT ":"",
(bsr & RC_BSR_TXINT)?"TXINT ":"",
(bsr & RC_BSR_MOINT)?"MOINT":"");
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (bsr & RC_BSR_TOUT) {
printf("rc%d: hardware failure, reset board\n", unit);
rcout(RC_CTOUT, 0);
rc_reinit(rcb);
return;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (bsr & RC_BSR_RXINT) {
iack = rcin(RC_PILR_RX);
good_data = (iack == (GIVR_IT_RGDI | RC_FAKEID));
if (!good_data && iack != (GIVR_IT_REI | RC_FAKEID)) {
printf("rc%d: fake rxint: %02x\n", unit, iack);
goto more_intrs;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc = rcb->rcb_baserc + ((rcin(CD180_GICR) & GICR_CHAN) >> GICR_LSH);
t_state = rc->rc_tp->t_state;
/* Do RTS flow control stuff */
if ( (rc->rc_flags & RC_RTSFLOW)
|| !(t_state & TS_ISOPEN)
) {
if ( ( !(t_state & TS_ISOPEN)
|| (t_state & TS_TBLOCK)
)
&& (rc->rc_msvr & MSVR_RTS)
)
rcout(CD180_MSVR,
rc->rc_msvr &= ~MSVR_RTS);
else if (!(rc->rc_msvr & MSVR_RTS))
rcout(CD180_MSVR,
rc->rc_msvr |= MSVR_RTS);
}
ucnt = rcin(CD180_RDCR) & 0xF;
resid = 0;
if (t_state & TS_ISOPEN) {
/* check for input buffer overflow */
if ((rc->rc_iptr + ucnt) >= rc->rc_bufend) {
resid = ucnt;
ucnt = rc->rc_bufend - rc->rc_iptr;
resid -= ucnt;
if (!(rc->rc_flags & RC_WAS_BUFOVFL)) {
rc->rc_flags |= RC_WAS_BUFOVFL;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc_scheduled_event++;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
}
optr = rc->rc_iptr;
/* check foor good data */
if (good_data) {
while (ucnt-- > 0) {
val = rcin(CD180_RDR);
optr[0] = val;
optr[INPUT_FLAGS_SHIFT] = 0;
optr++;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc_scheduled_event++;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (val != 0 && val == rc->rc_hotchar)
setsofttty();
}
} else {
/* Store also status data */
while (ucnt-- > 0) {
iack = rcin(CD180_RCSR);
if (iack & RCSR_Timeout)
break;
if ( (iack & RCSR_OE)
&& !(rc->rc_flags & RC_WAS_SILOVFL)) {
rc->rc_flags |= RC_WAS_SILOVFL;
rc_scheduled_event++;
}
val = rcin(CD180_RDR);
/*
Don't store PE if IGNPAR and BREAK if IGNBRK,
this hack allows "raw" tty optimization
works even if IGN* is set.
*/
if ( !(iack & (RCSR_PE|RCSR_FE|RCSR_Break))
|| (!(iack & (RCSR_PE|RCSR_FE))
|| !(rc->rc_tp->t_iflag & IGNPAR))
&& (!(iack & RCSR_Break)
|| !(rc->rc_tp->t_iflag & IGNBRK))) {
if ( (iack & (RCSR_PE|RCSR_FE))
&& (t_state & TS_CAN_BYPASS_L_RINT)
&& ((iack & RCSR_FE)
|| (iack & RCSR_PE)
&& (rc->rc_tp->t_iflag & INPCK)))
val = 0;
else if (val != 0 && val == rc->rc_hotchar)
setsofttty();
optr[0] = val;
optr[INPUT_FLAGS_SHIFT] = iack;
optr++;
rc_scheduled_event++;
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_iptr = optr;
rc->rc_flags |= RC_DORXFER;
} else
resid = ucnt;
/* Clear FIFO if necessary */
while (resid-- > 0) {
if (!good_data)
iack = rcin(CD180_RCSR);
else
iack = 0;
if (iack & RCSR_Timeout)
break;
(void) rcin(CD180_RDR);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
goto more_intrs;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (bsr & RC_BSR_MOINT) {
iack = rcin(RC_PILR_MODEM);
if (iack != (GIVR_IT_MSCI | RC_FAKEID)) {
printf("rc%d: fake moint: %02x\n", unit, iack);
goto more_intrs;
}
rc = rcb->rcb_baserc + ((rcin(CD180_GICR) & GICR_CHAN) >> GICR_LSH);
iack = rcin(CD180_MCR);
rc->rc_msvr = rcin(CD180_MSVR);
rcout(CD180_MCR, 0);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printrcflags(rc, "moint");
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (rc->rc_flags & RC_CTSFLOW) {
if (rc->rc_msvr & MSVR_CTS)
rc->rc_flags |= RC_SEND_RDY;
else
rc->rc_flags &= ~RC_SEND_RDY;
} else
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_flags |= RC_SEND_RDY;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if ((iack & MCR_CDchg) && !(rc->rc_flags & RC_MODCHG)) {
rc_scheduled_event += LOTS_OF_EVENTS;
rc->rc_flags |= RC_MODCHG;
setsofttty();
}
goto more_intrs;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (bsr & RC_BSR_TXINT) {
iack = rcin(RC_PILR_TX);
if (iack != (GIVR_IT_TDI | RC_FAKEID)) {
printf("rc%d: fake txint: %02x\n", unit, iack);
goto more_intrs;
}
rc = rcb->rcb_baserc + ((rcin(CD180_GICR) & GICR_CHAN) >> GICR_LSH);
if ( (rc->rc_flags & RC_OSUSP)
|| !(rc->rc_flags & RC_SEND_RDY)
)
goto more_intrs;
/* Handle breaks and other stuff */
if (rc->rc_pendcmd) {
rcout(CD180_COR2, rc->rc_cor2 |= COR2_ETC);
rcout(CD180_TDR, CD180_C_ESC);
rcout(CD180_TDR, rc->rc_pendcmd);
rcout(CD180_COR2, rc->rc_cor2 &= ~COR2_ETC);
rc->rc_pendcmd = 0;
goto more_intrs;
}
optr = rc->rc_optr;
resid = rc->rc_obufend - optr;
if (resid > CD180_NFIFO)
resid = CD180_NFIFO;
while (resid-- > 0)
rcout(CD180_TDR, *optr++);
rc->rc_optr = optr;
/* output completed? */
if (optr >= rc->rc_obufend) {
rcout(CD180_IER, rc->rc_ier &= ~IER_TxRdy);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rc%d/%d: output completed\n", unit, rc->rc_chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (!(rc->rc_flags & RC_DOXXFER)) {
rc_scheduled_event += LOTS_OF_EVENTS;
rc->rc_flags |= RC_DOXXFER;
setsofttty();
}
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
more_intrs:
rcout(CD180_EOIR, 0); /* end of interrupt */
rcout(RC_CTOUT, 0);
bsr = ~(rcin(RC_BSR));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
}
/* Feed characters to output buffer */
static void rc_start(tp)
register struct tty *tp;
{
register struct rc_chans *rc = &rc_chans[GET_UNIT(tp->t_dev)];
register int nec = rc->rc_rcb->rcb_addr, s;
if (rc->rc_flags & RC_OSBUSY)
return;
s = spltty();
rc->rc_flags |= RC_OSBUSY;
disable_intr();
if (tp->t_state & TS_TTSTOP)
rc->rc_flags |= RC_OSUSP;
else
rc->rc_flags &= ~RC_OSUSP;
/* Do RTS flow control stuff */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if ( (rc->rc_flags & RC_RTSFLOW)
&& (tp->t_state & TS_TBLOCK)
&& (rc->rc_msvr & MSVR_RTS)
) {
rcout(CD180_CAR, rc->rc_chan);
rcout(CD180_MSVR, rc->rc_msvr &= ~MSVR_RTS);
} else if (!(rc->rc_msvr & MSVR_RTS)) {
rcout(CD180_CAR, rc->rc_chan);
rcout(CD180_MSVR, rc->rc_msvr |= MSVR_RTS);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
enable_intr();
if (tp->t_state & (TS_TIMEOUT|TS_TTSTOP))
goto out;
#ifdef RCDEBUG
printrcflags(rc, "rcstart");
#endif
Move the inline code for waking up writers to a new function ttwwakeup(). The conditions for doing the wakeup will soon become more complicated and I don't want them duplicated in all drivers. It's probably not worth making ttwwakeup() a macro or an inline function. The cost of the function call is relatively small when there is a process to wake up. There is usually a process to wake up for large writes and the system call overhead dwarfs the function call overhead for small writes.
1995-07-22 01:30:45 +00:00
ttwwakeup(tp);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rcstart: outq = %d obuf = %d\n",
RISCom/8 driver
1995-05-12 15:09:29 +00:00
tp->t_outq.c_cc, rc->rc_obufend - rc->rc_optr);
#endif
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (tp->t_state & TS_BUSY)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
goto out; /* output still in progress ... */
if (tp->t_outq.c_cc > 0) {
u_int ocnt;
tp->t_state |= TS_BUSY;
ocnt = q_to_b(&tp->t_outq, rc->rc_obuf, sizeof rc->rc_obuf);
disable_intr();
rc->rc_optr = rc->rc_obuf;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_obufend = rc->rc_optr + ocnt;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
enable_intr();
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (!(rc->rc_ier & IER_TxRdy)) {
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rc%d/%d: rcstart enable txint\n", rc->rc_rcb->rcb_unit, rc->rc_chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif
rcout(CD180_CAR, rc->rc_chan);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_IER, rc->rc_ier |= IER_TxRdy);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
}
out:
rc->rc_flags &= ~RC_OSBUSY;
(void) splx(s);
}
/* Handle delayed events. */
void rcpoll()
{
register struct rc_chans *rc;
register struct rc_softc *rcb;
register u_char *tptr, *eptr;
register struct tty *tp;
Clean up -Wunused warnings. Reviewed by: bde
1996-06-12 05:11:41 +00:00
register int chan, icnt, nec, unit;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (rc_scheduled_event == 0)
return;
repeat:
for (unit = 0; unit < NRC; unit++) {
rcb = &rc_softc[unit];
rc = rcb->rcb_baserc;
nec = rc->rc_rcb->rcb_addr;
for (chan = 0; chan < CD180_NCHAN; rc++, chan++) {
tp = rc->rc_tp;
#ifdef RCDEBUG
if (rc->rc_flags & (RC_DORXFER|RC_DOXXFER|RC_MODCHG|
RC_WAS_BUFOVFL|RC_WAS_SILOVFL))
printrcflags(rc, "rcevent");
#endif
if (rc->rc_flags & RC_WAS_BUFOVFL) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
disable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_flags &= ~RC_WAS_BUFOVFL;
rc_scheduled_event--;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
enable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
printf("rc%d/%d: interrupt-level buffer overflow\n",
unit, chan);
}
if (rc->rc_flags & RC_WAS_SILOVFL) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
disable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_flags &= ~RC_WAS_SILOVFL;
rc_scheduled_event--;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
enable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
printf("rc%d/%d: silo overflow\n",
unit, chan);
}
if (rc->rc_flags & RC_MODCHG) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
disable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_flags &= ~RC_MODCHG;
rc_scheduled_event -= LOTS_OF_EVENTS;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
enable_intr();
(*linesw[tp->t_line].l_modem)(tp, !!(rc->rc_msvr & MSVR_CD));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
if (rc->rc_flags & RC_DORXFER) {
disable_intr();
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_flags &= ~RC_DORXFER;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
eptr = rc->rc_iptr;
if (rc->rc_bufend == &rc->rc_ibuf[2 * RC_IBUFSIZE])
tptr = &rc->rc_ibuf[RC_IBUFSIZE];
else
tptr = rc->rc_ibuf;
icnt = eptr - tptr;
if (icnt > 0) {
if (rc->rc_bufend == &rc->rc_ibuf[2 * RC_IBUFSIZE]) {
rc->rc_iptr = rc->rc_ibuf;
rc->rc_bufend = &rc->rc_ibuf[RC_IBUFSIZE];
rc->rc_hiwat = &rc->rc_ibuf[RC_IHIGHWATER];
} else {
rc->rc_iptr = &rc->rc_ibuf[RC_IBUFSIZE];
rc->rc_bufend = &rc->rc_ibuf[2 * RC_IBUFSIZE];
rc->rc_hiwat =
&rc->rc_ibuf[RC_IBUFSIZE + RC_IHIGHWATER];
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if ( (rc->rc_flags & RC_RTSFLOW)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
&& (tp->t_state & TS_ISOPEN)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
&& !(tp->t_state & TS_TBLOCK)
&& !(rc->rc_msvr & MSVR_RTS)
) {
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcout(CD180_CAR, chan);
rcout(CD180_MSVR,
rc->rc_msvr |= MSVR_RTS);
}
rc_scheduled_event -= icnt;
}
enable_intr();
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (icnt <= 0 || !(tp->t_state & TS_ISOPEN))
RISCom/8 driver
1995-05-12 15:09:29 +00:00
goto done1;
if ( (tp->t_state & TS_CAN_BYPASS_L_RINT)
&& !(tp->t_state & TS_LOCAL)) {
Improve input flow control. Use input buffer watermarks of TTYHOG-512 (high) and (high)*7/8 (low) instead of TTYHOG/2 (high) and TTYHOG/5 (low) to agree with some drivers. 512 is magic and some things depended on TTYHOG/2 >= TTYHOG-512 to work; now they depend on the 512 magic not changing and TTYHOG-512 being significantly larger than 0. This should be handled in ttsetwater(). Separate the decision about whether to do input flow control from doing it. ttyblock() now just starts input flow control (hardware and/or software) and there is a new function ttyunblock() to stop it. The decisions are the same except for the watermark changes and allowing for input expansion for PARMRK. When flushing input, try harder at first to send a start character if required, but give up if the first attempt fails. cy.c, rc.c, sio.c: Simplify: let ttyinput() handle input flow control if it is not being bypassed. Use ttyblock() to start flow control otherwise. rc.c: Use same input flow control test as elsewhere: test in a more efficient order and start flow control at >= highwater instead of at > highwater.
1995-07-31 18:29:51 +00:00
if ((tp->t_rawq.c_cc + icnt) >= RB_I_HIGH_WATER
&& ((rc->rc_flags & RC_RTSFLOW) || (tp->t_iflag & IXOFF))
&& !(tp->t_state & TS_TBLOCK))
ttyblock(tp);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
tk_nin += icnt;
tk_rawcc += icnt;
tp->t_rawcc += icnt;
if (b_to_q(tptr, icnt, &tp->t_rawq))
printf("rc%d/%d: tty-level buffer overflow\n",
unit, chan);
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;
Always wake up writers after clearing TS_BUSY. This will soon be essential when I fix excessive wakeups for output-below-low-water. In cy.c and sio.c, wake up via the driver start routine to also eliminate duplicated code involving the clearing of TS_TTSTOP. Always (except in code to be replaced soon) call driver start routine directly instead of going through ttstart().
1995-07-29 04:05:57 +00:00
rc_start(tp);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
} else {
for (; tptr < eptr; tptr++)
(*linesw[tp->t_line].l_rint)
(tptr[0] |
rc_rcsrt[tptr[INPUT_FLAGS_SHIFT] & 0xF], tp);
}
Don't depend on gcc's feature of permitting labels that aren't followed by a statement.
1997-07-01 00:22:51 +00:00
done1: ;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
if (rc->rc_flags & RC_DOXXFER) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
disable_intr();
rc_scheduled_event -= LOTS_OF_EVENTS;
rc->rc_flags &= ~RC_DOXXFER;
rc->rc_tp->t_state &= ~TS_BUSY;
enable_intr();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
(*linesw[tp->t_line].l_start)(tp);
}
}
if (rc_scheduled_event == 0)
break;
}
if (rc_scheduled_event >= LOTS_OF_EVENTS)
goto repeat;
}
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static void
rcstop(tp, rw)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
register struct tty *tp;
int rw;
{
register struct rc_chans *rc = &rc_chans[GET_UNIT(tp->t_dev)];
u_char *tptr, *eptr;
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rc%d/%d: rcstop %s%s\n", rc->rc_rcb->rcb_unit, rc->rc_chan,
RISCom/8 driver
1995-05-12 15:09:29 +00:00
(rw & FWRITE)?"FWRITE ":"", (rw & FREAD)?"FREAD":"");
#endif
if (rw & FWRITE)
rc_discard_output(rc);
disable_intr();
if (rw & FREAD) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_flags &= ~RC_DORXFER;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
eptr = rc->rc_iptr;
if (rc->rc_bufend == &rc->rc_ibuf[2 * RC_IBUFSIZE]) {
tptr = &rc->rc_ibuf[RC_IBUFSIZE];
rc->rc_iptr = &rc->rc_ibuf[RC_IBUFSIZE];
} else {
tptr = rc->rc_ibuf;
rc->rc_iptr = rc->rc_ibuf;
}
rc_scheduled_event -= eptr - tptr;
}
if (tp->t_state & TS_TTSTOP)
rc->rc_flags |= RC_OSUSP;
else
rc->rc_flags &= ~RC_OSUSP;
enable_intr();
}
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static int
rcopen(dev, flag, mode, p)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
dev_t dev;
int flag, mode;
struct proc *p;
{
register struct rc_chans *rc;
register struct tty *tp;
int unit, nec, s, error = 0;
unit = GET_UNIT(dev);
if (unit >= NRC * CD180_NCHAN)
return ENXIO;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (rc_softc[unit / CD180_NCHAN].rcb_probed != RC_ATTACHED)
return ENXIO;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc = &rc_chans[unit];
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
tp = rc->rc_tp;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
nec = rc->rc_rcb->rcb_addr;
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rc%d/%d: rcopen: dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif
s = spltty();
again:
while (rc->rc_flags & RC_DTR_OFF) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
error = tsleep(&(rc->rc_dtrwait), TTIPRI | PCATCH, "rcdtr", 0);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (error != 0)
goto out;
}
if (tp->t_state & TS_ISOPEN) {
if (CALLOUT(dev)) {
if (!(rc->rc_flags & RC_ACTOUT)) {
error = EBUSY;
goto out;
}
} else {
if (rc->rc_flags & RC_ACTOUT) {
if (flag & O_NONBLOCK) {
error = EBUSY;
goto out;
}
if (error = tsleep(&rc->rc_rcb,
TTIPRI|PCATCH, "rcbi", 0))
goto out;
goto again;
}
}
if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) {
error = EBUSY;
goto out;
}
} else {
tp->t_oproc = rc_start;
tp->t_param = rc_param;
tp->t_dev = dev;
if (CALLOUT(dev))
tp->t_cflag |= CLOCAL;
else
tp->t_cflag &= ~CLOCAL;
error = rc_param(tp, &tp->t_termios);
if (error)
goto out;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
(void) rc_modctl(rc, TIOCM_RTS|TIOCM_DTR, DMSET);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
ttsetwater(tp);
if ((rc->rc_msvr & MSVR_CD) || CALLOUT(dev))
(*linesw[tp->t_line].l_modem)(tp, 1);
}
if (!(tp->t_state & TS_CARR_ON) && !CALLOUT(dev)
&& !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) {
rc->rc_dcdwaits++;
Obtained from: partly from ancient patches of mine via 1.1.5 Give names to the magic tty i/o sleep addresses and use them. This makes it easier to remember what the addresses are for and to keep them unique.
1995-07-22 16:45:22 +00:00
error = tsleep(TSA_CARR_ON(tp), TTIPRI | PCATCH, "rcdcd", 0);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_dcdwaits--;
if (error != 0)
goto out;
goto again;
}
error = (*linesw[tp->t_line].l_open)(dev, tp);
Add more disc_optim calls to track line disc changes
1995-12-28 11:58:35 +00:00
disc_optim(tp, &tp->t_termios, rc);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if ((tp->t_state & TS_ISOPEN) && CALLOUT(dev))
rc->rc_flags |= RC_ACTOUT;
out:
(void) splx(s);
if(rc->rc_dcdwaits == 0 && !(tp->t_state & TS_ISOPEN))
rc_hardclose(rc);
return error;
}
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static int
rcclose(dev, flag, mode, p)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
dev_t dev;
int flag, mode;
struct proc *p;
{
register struct rc_chans *rc;
register struct tty *tp;
int s, unit = GET_UNIT(dev);
if (unit >= NRC * CD180_NCHAN)
return ENXIO;
rc = &rc_chans[unit];
tp = rc->rc_tp;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
#ifdef RCDEBUG
printf("rc%d/%d: rcclose dev %x\n", rc->rc_rcb->rcb_unit, unit, dev);
#endif
RISCom/8 driver
1995-05-12 15:09:29 +00:00
s = spltty();
(*linesw[tp->t_line].l_close)(tp, flag);
Add more disc_optim calls to track line disc changes
1995-12-28 11:58:35 +00:00
disc_optim(tp, &tp->t_termios, rc);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcstop(tp, FREAD | FWRITE);
rc_hardclose(rc);
ttyclose(tp);
splx(s);
return 0;
}
static void rc_hardclose(rc)
register struct rc_chans *rc;
{
register int s, nec = rc->rc_rcb->rcb_addr;
register struct tty *tp = rc->rc_tp;
s = spltty();
rcout(CD180_CAR, rc->rc_chan);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
/* Disable rx/tx intrs */
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcout(CD180_IER, rc->rc_ier = 0);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if ( (tp->t_cflag & HUPCL)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
|| !(rc->rc_flags & RC_ACTOUT)
&& !(rc->rc_msvr & MSVR_CD)
&& !(tp->t_cflag & CLOCAL)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
|| !(tp->t_state & TS_ISOPEN)
) {
CCRCMD(rc->rc_rcb->rcb_unit, rc->rc_chan, CCR_ResetChan);
WAITFORCCR(rc->rc_rcb->rcb_unit, rc->rc_chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
(void) rc_modctl(rc, TIOCM_RTS, DMSET);
if (rc->rc_dtrwait) {
timeout(rc_dtrwakeup, rc, rc->rc_dtrwait);
rc->rc_flags |= RC_DTR_OFF;
}
}
rc->rc_flags &= ~RC_ACTOUT;
wakeup((caddr_t) &rc->rc_rcb); /* wake bi */
Obtained from: partly from ancient patches of mine via 1.1.5 Give names to the magic tty i/o sleep addresses and use them. This makes it easier to remember what the addresses are for and to keep them unique.
1995-07-22 16:45:22 +00:00
wakeup(TSA_CARR_ON(tp));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
(void) splx(s);
}
/* Read from line */
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static int
rcread(dev, uio, flag)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
dev_t dev;
struct uio *uio;
int flag;
{
struct tty *tp = rc_chans[GET_UNIT(dev)].rc_tp;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
RISCom/8 driver
1995-05-12 15:09:29 +00:00
return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
}
/* Write to line */
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static int
rcwrite(dev, uio, flag)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
dev_t dev;
struct uio *uio;
int flag;
{
struct tty *tp = rc_chans[GET_UNIT(dev)].rc_tp;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
RISCom/8 driver
1995-05-12 15:09:29 +00:00
return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
}
/* Reset the bastard */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void rc_hwreset(unit, nec, chipid)
register int unit, nec;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
unsigned int chipid;
{
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
CCRCMD(unit, -1, CCR_HWRESET); /* Hardware reset */
RISCom/8 driver
1995-05-12 15:09:29 +00:00
DELAY(20000);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
WAITFORCCR(unit, -1);
rcout(RC_CTOUT, 0); /* Clear timeout */
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcout(CD180_GIVR, chipid);
rcout(CD180_GICR, 0);
/* Set Prescaler Registers (1 msec) */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_PPRL, ((RC_OSCFREQ + 999) / 1000) & 0xFF);
rcout(CD180_PPRH, ((RC_OSCFREQ + 999) / 1000) >> 8);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Initialize Priority Interrupt Level Registers */
rcout(CD180_PILR1, RC_PILR_MODEM);
rcout(CD180_PILR2, RC_PILR_TX);
rcout(CD180_PILR3, RC_PILR_RX);
/* Reset DTR */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(RC_DTREG, ~0);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
/* Set channel parameters */
static int rc_param(tp, ts)
register struct tty *tp;
struct termios *ts;
{
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
register struct rc_chans *rc = &rc_chans[GET_UNIT(tp->t_dev)];
RISCom/8 driver
1995-05-12 15:09:29 +00:00
register int nec = rc->rc_rcb->rcb_addr;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
int idivs, odivs, s, val, cflag, iflag, lflag, inpflow;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Allow any speed from 0..76800 Reviewed by: Submitted by: Obtained from:
1995-08-02 10:17:35 +00:00
if ( ts->c_ospeed < 0 || ts->c_ospeed > 76800
|| ts->c_ispeed < 0 || ts->c_ispeed > 76800
)
return (EINVAL);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (ts->c_ispeed == 0)
ts->c_ispeed = ts->c_ospeed;
Allow any speed from 0..76800 Reviewed by: Submitted by: Obtained from:
1995-08-02 10:17:35 +00:00
odivs = RC_BRD(ts->c_ospeed);
idivs = RC_BRD(ts->c_ispeed);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
s = spltty();
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
/* Select channel */
rcout(CD180_CAR, rc->rc_chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* If speed == 0, hangup line */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (ts->c_ospeed == 0) {
CCRCMD(rc->rc_rcb->rcb_unit, rc->rc_chan, CCR_ResetChan);
WAITFORCCR(rc->rc_rcb->rcb_unit, rc->rc_chan);
(void) rc_modctl(rc, TIOCM_DTR, DMBIC);
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
tp->t_state &= ~TS_CAN_BYPASS_L_RINT;
cflag = ts->c_cflag;
iflag = ts->c_iflag;
lflag = ts->c_lflag;
if (idivs > 0) {
rcout(CD180_RBPRL, idivs & 0xFF);
rcout(CD180_RBPRH, idivs >> 8);
}
if (odivs > 0) {
rcout(CD180_TBPRL, odivs & 0xFF);
rcout(CD180_TBPRH, odivs >> 8);
}
/* set timeout value */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (ts->c_ispeed > 0) {
int itm = ts->c_ispeed > 2400 ? 5 : 10000 / ts->c_ispeed + 1;
if ( !(lflag & ICANON)
&& ts->c_cc[VMIN] != 0 && ts->c_cc[VTIME] != 0
&& ts->c_cc[VTIME] * 10 > itm)
itm = ts->c_cc[VTIME] * 10;
rcout(CD180_RTPR, itm <= 255 ? itm : 255);
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
switch (cflag & CSIZE) {
case CS5: val = COR1_5BITS; break;
case CS6: val = COR1_6BITS; break;
case CS7: val = COR1_7BITS; break;
default:
case CS8: val = COR1_8BITS; break;
}
if (cflag & PARENB) {
val |= COR1_NORMPAR;
if (cflag & PARODD)
val |= COR1_ODDP;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (!(cflag & INPCK))
val |= COR1_Ignore;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
} else
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
val |= COR1_Ignore;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (cflag & CSTOPB)
val |= COR1_2SB;
rcout(CD180_COR1, val);
/* Set FIFO threshold */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
val = ts->c_ospeed <= 4800 ? 1 : CD180_NFIFO / 2;
inpflow = 0;
if ( (iflag & IXOFF)
&& ( ts->c_cc[VSTOP] != _POSIX_VDISABLE
&& ( ts->c_cc[VSTART] != _POSIX_VDISABLE
|| (iflag & IXANY)
)
)
) {
inpflow = 1;
val |= COR3_SCDE|COR3_FCT;
}
rcout(CD180_COR3, val);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Initialize on-chip automatic flow control */
val = 0;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_flags &= ~(RC_CTSFLOW|RC_SEND_RDY);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (cflag & CCTS_OFLOW) {
rc->rc_flags |= RC_CTSFLOW;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
val |= COR2_CtsAE;
} else
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_flags |= RC_SEND_RDY;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (tp->t_state & TS_TTSTOP)
rc->rc_flags |= RC_OSUSP;
else
rc->rc_flags &= ~RC_OSUSP;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (cflag & CRTS_IFLOW)
rc->rc_flags |= RC_RTSFLOW;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
else
rc->rc_flags &= ~RC_RTSFLOW;
if (inpflow) {
if (ts->c_cc[VSTART] != _POSIX_VDISABLE)
rcout(CD180_SCHR1, ts->c_cc[VSTART]);
rcout(CD180_SCHR2, ts->c_cc[VSTOP]);
val |= COR2_TxIBE;
if (iflag & IXANY)
val |= COR2_IXM;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_COR2, rc->rc_cor2 = val);
CCRCMD(rc->rc_rcb->rcb_unit, rc->rc_chan,
CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
disc_optim(tp, ts, rc);
/* modem ctl */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
val = cflag & CLOCAL ? 0 : MCOR1_CDzd;
if (cflag & CCTS_OFLOW)
val |= MCOR1_CTSzd;
rcout(CD180_MCOR1, val);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
val = cflag & CLOCAL ? 0 : MCOR2_CDod;
if (cflag & CCTS_OFLOW)
val |= MCOR2_CTSod;
rcout(CD180_MCOR2, val);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
/* enable i/o and interrupts */
CCRCMD(rc->rc_rcb->rcb_unit, rc->rc_chan,
CCR_XMTREN | ((cflag & CREAD) ? CCR_RCVREN : CCR_RCVRDIS));
WAITFORCCR(rc->rc_rcb->rcb_unit, rc->rc_chan);
rc->rc_ier = cflag & CLOCAL ? 0 : IER_CD;
if (cflag & CCTS_OFLOW)
rc->rc_ier |= IER_CTS;
if (cflag & CREAD)
rc->rc_ier |= IER_RxData;
if (tp->t_state & TS_BUSY)
rc->rc_ier |= IER_TxRdy;
if (ts->c_ospeed != 0)
rc_modctl(rc, TIOCM_DTR, DMBIS);
if ((cflag & CCTS_OFLOW) && (rc->rc_msvr & MSVR_CTS))
rc->rc_flags |= RC_SEND_RDY;
rcout(CD180_IER, rc->rc_ier);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
(void) splx(s);
return 0;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
/* Re-initialize board after bogus interrupts */
static void rc_reinit(rcb)
struct rc_softc *rcb;
{
register struct rc_chans *rc, *rce;
Clean up -Wunused warnings. Reviewed by: bde
1996-06-12 05:11:41 +00:00
register int nec;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
nec = rcb->rcb_addr;
rc_hwreset(rcb->rcb_unit, nec, RC_FAKEID);
rc = &rc_chans[rcb->rcb_unit * CD180_NCHAN];
rce = rc + CD180_NCHAN;
for (; rc < rce; rc++)
(void) rc_param(rc->rc_tp, &rc->rc_tp->t_termios);
}
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static int
rcioctl(dev, cmd, data, flag, p)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
dev_t dev;
int cmd, flag;
caddr_t data;
struct proc *p;
{
register struct rc_chans *rc = &rc_chans[GET_UNIT(dev)];
register int s, error;
struct tty *tp = rc->rc_tp;
error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
if (error >= 0)
return (error);
error = ttioctl(tp, cmd, data, flag);
Add more disc_optim calls to track line disc changes
1995-12-28 11:58:35 +00:00
disc_optim(tp, &tp->t_termios, rc);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (error >= 0)
return (error);
s = spltty();
switch (cmd) {
case TIOCSBRK:
rc->rc_pendcmd = CD180_C_SBRK;
break;
case TIOCCBRK:
rc->rc_pendcmd = CD180_C_EBRK;
break;
case TIOCSDTR:
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
(void) rc_modctl(rc, TIOCM_DTR, DMBIS);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
break;
case TIOCCDTR:
(void) rc_modctl(rc, TIOCM_DTR, DMBIC);
break;
case TIOCMGET:
*(int *) data = rc_modctl(rc, 0, DMGET);
break;
case TIOCMSET:
(void) rc_modctl(rc, *(int *) data, DMSET);
break;
case TIOCMBIC:
(void) rc_modctl(rc, *(int *) data, DMBIC);
break;
case TIOCMBIS:
(void) rc_modctl(rc, *(int *) data, DMBIS);
break;
case TIOCMSDTRWAIT:
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0) {
splx(s);
return (error);
}
rc->rc_dtrwait = *(int *)data * hz / 100;
break;
case TIOCMGDTRWAIT:
*(int *)data = rc->rc_dtrwait * 100 / hz;
break;
default:
(void) splx(s);
return ENOTTY;
}
(void) splx(s);
return 0;
}
/* Modem control routines */
static int rc_modctl(rc, bits, cmd)
register struct rc_chans *rc;
int bits, cmd;
{
register int nec = rc->rc_rcb->rcb_addr;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
u_char *dtr = &rc->rc_rcb->rcb_dtr, msvr;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcout(CD180_CAR, rc->rc_chan);
switch (cmd) {
case DMSET:
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(RC_DTREG, (bits & TIOCM_DTR) ?
~(*dtr |= 1 << rc->rc_chan) :
~(*dtr &= ~(1 << rc->rc_chan)));
msvr = rcin(CD180_MSVR);
if (bits & TIOCM_RTS)
msvr |= MSVR_RTS;
else
msvr &= ~MSVR_RTS;
if (bits & TIOCM_DTR)
msvr |= MSVR_DTR;
else
msvr &= ~MSVR_DTR;
rcout(CD180_MSVR, msvr);
break;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
case DMBIS:
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (bits & TIOCM_DTR)
rcout(RC_DTREG, ~(*dtr |= 1 << rc->rc_chan));
msvr = rcin(CD180_MSVR);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (bits & TIOCM_RTS)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
msvr |= MSVR_RTS;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (bits & TIOCM_DTR)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
msvr |= MSVR_DTR;
rcout(CD180_MSVR, msvr);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
break;
case DMGET:
bits = TIOCM_LE;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
msvr = rc->rc_msvr = rcin(CD180_MSVR);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (msvr & MSVR_RTS)
bits |= TIOCM_RTS;
if (msvr & MSVR_CTS)
bits |= TIOCM_CTS;
if (msvr & MSVR_DSR)
bits |= TIOCM_DSR;
if (msvr & MSVR_DTR)
bits |= TIOCM_DTR;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (msvr & MSVR_CD)
bits |= TIOCM_CD;
if (~rcin(RC_RIREG) & (1 << rc->rc_chan))
bits |= TIOCM_RI;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
return bits;
case DMBIC:
if (bits & TIOCM_DTR)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(RC_DTREG, ~(*dtr &= ~(1 << rc->rc_chan)));
msvr = rcin(CD180_MSVR);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (bits & TIOCM_RTS)
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
msvr &= ~MSVR_RTS;
if (bits & TIOCM_DTR)
msvr &= ~MSVR_DTR;
rcout(CD180_MSVR, msvr);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
break;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc->rc_msvr = rcin(CD180_MSVR);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
return 0;
}
/* Test the board. */
int rc_test(nec, unit)
register int nec;
int unit;
{
Clean up -Wunused warnings. Reviewed by: bde
1996-06-12 05:11:41 +00:00
int chan = 0;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
int i = 0, rcnt, old_level;
unsigned int iack, chipid;
unsigned short divs;
static u_char ctest[] = "\377\125\252\045\244\0\377";
#define CTLEN 8
#define ERR(s) { \
printf("rc%d: ", unit); printf s ; printf("\n"); \
(void) splx(old_level); return 1; }
struct rtest {
u_char txbuf[CD180_NFIFO]; /* TX buffer */
u_char rxbuf[CD180_NFIFO]; /* RX buffer */
int rxptr; /* RX pointer */
int txptr; /* TX pointer */
} tchans[CD180_NCHAN];
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
old_level = spltty();
RISCom/8 driver
1995-05-12 15:09:29 +00:00
chipid = RC_FAKEID;
/* First, reset board to inital state */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rc_hwreset(unit, nec, chipid);
divs = RC_BRD(19200);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Initialize channels */
for (chan = 0; chan < CD180_NCHAN; chan++) {
/* Select and reset channel */
rcout(CD180_CAR, chan);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
CCRCMD(unit, chan, CCR_ResetChan);
WAITFORCCR(unit, chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* Set speed */
rcout(CD180_RBPRL, divs & 0xFF);
rcout(CD180_RBPRH, divs >> 8);
rcout(CD180_TBPRL, divs & 0xFF);
rcout(CD180_TBPRH, divs >> 8);
/* set timeout value */
rcout(CD180_RTPR, 0);
/* Establish local loopback */
rcout(CD180_COR1, COR1_NOPAR | COR1_8BITS | COR1_1SB);
rcout(CD180_COR2, COR2_LLM);
rcout(CD180_COR3, CD180_NFIFO);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
CCRCMD(unit, chan, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
CCRCMD(unit, chan, CCR_RCVREN | CCR_XMTREN);
WAITFORCCR(unit, chan);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcout(CD180_MSVR, MSVR_RTS);
/* Fill TXBUF with test data */
for (i = 0; i < CD180_NFIFO; i++) {
tchans[chan].txbuf[i] = ctest[i];
tchans[chan].rxbuf[i] = 0;
}
tchans[chan].txptr = tchans[chan].rxptr = 0;
/* Now, start transmit */
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_IER, IER_TxMpty|IER_RxData);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
/* Pseudo-interrupt poll stuff */
for (rcnt = 10000; rcnt-- > 0; rcnt--) {
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
i = ~(rcin(RC_BSR));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (i & RC_BSR_TOUT)
ERR(("BSR timeout bit set\n"))
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
else if (i & RC_BSR_TXINT) {
RISCom/8 driver
1995-05-12 15:09:29 +00:00
iack = rcin(RC_PILR_TX);
if (iack != (GIVR_IT_TDI | chipid))
ERR(("Bad TX intr ack (%02x != %02x)\n",
iack, GIVR_IT_TDI | chipid));
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
chan = (rcin(CD180_GICR) & GICR_CHAN) >> GICR_LSH;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
/* If no more data to transmit, disable TX intr */
if (tchans[chan].txptr >= CD180_NFIFO) {
iack = rcin(CD180_IER);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_IER, iack & ~IER_TxMpty);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
} else {
for (iack = tchans[chan].txptr;
iack < CD180_NFIFO; iack++)
rcout(CD180_TDR,
tchans[chan].txbuf[iack]);
tchans[chan].txptr = iack;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(CD180_EOIR, 0);
} else if (i & RC_BSR_RXINT) {
u_char ucnt;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
iack = rcin(RC_PILR_RX);
if (iack != (GIVR_IT_RGDI | chipid) &&
iack != (GIVR_IT_REI | chipid))
ERR(("Bad RX intr ack (%02x != %02x)\n",
iack, GIVR_IT_RGDI | chipid))
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
chan = (rcin(CD180_GICR) & GICR_CHAN) >> GICR_LSH;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
ucnt = rcin(CD180_RDCR) & 0xF;
while (ucnt-- > 0) {
iack = rcin(CD180_RCSR);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (iack & RCSR_Timeout)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
break;
if (iack & 0xF)
ERR(("Bad char chan %d (RCSR = %02X)\n",
chan, iack))
if (tchans[chan].rxptr > CD180_NFIFO)
ERR(("Got extra chars chan %d\n",
chan))
tchans[chan].rxbuf[tchans[chan].rxptr++] =
rcin(CD180_RDR);
}
rcout(CD180_EOIR, 0);
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
rcout(RC_CTOUT, 0);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
for (iack = chan = 0; chan < CD180_NCHAN; chan++)
if (tchans[chan].rxptr >= CD180_NFIFO)
iack++;
if (iack == CD180_NCHAN)
break;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
for (chan = 0; chan < CD180_NCHAN; chan++) {
/* Select and reset channel */
rcout(CD180_CAR, chan);
CCRCMD(unit, chan, CCR_ResetChan);
}
RISCom/8 driver
1995-05-12 15:09:29 +00:00
if (!rcnt)
ERR(("looses characters during local loopback\n"))
/* Now, check data */
for (chan = 0; chan < CD180_NCHAN; chan++)
for (i = 0; i < CD180_NFIFO; i++)
if (ctest[i] != tchans[chan].rxbuf[i])
ERR(("data mismatch chan %d ptr %d (%d != %d)\n",
chan, i, ctest[i], tchans[chan].rxbuf[i]))
(void) splx(old_level);
return 0;
}
#ifdef RCDEBUG
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void printrcflags(rc, comment)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
struct rc_chans *rc;
char *comment;
{
u_short f = rc->rc_flags;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
register int nec = rc->rc_rcb->rcb_addr;
RISCom/8 driver
1995-05-12 15:09:29 +00:00
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
printf("rc%d/%d: %s flags: %s%s%s%s%s%s%s%s%s%s%s%s\n",
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rc->rc_rcb->rcb_unit, rc->rc_chan, comment,
(f & RC_DTR_OFF)?"DTR_OFF " :"",
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
(f & RC_ACTOUT) ?"ACTOUT " :"",
(f & RC_RTSFLOW)?"RTSFLOW " :"",
(f & RC_CTSFLOW)?"CTSFLOW " :"",
(f & RC_DORXFER)?"DORXFER " :"",
(f & RC_DOXXFER)?"DOXXFER " :"",
(f & RC_MODCHG) ?"MODCHG " :"",
(f & RC_OSUSP) ?"OSUSP " :"",
(f & RC_OSBUSY) ?"OSBUSY " :"",
(f & RC_WAS_BUFOVFL) ?"BUFOVFL " :"",
(f & RC_WAS_SILOVFL) ?"SILOVFL " :"",
(f & RC_SEND_RDY) ?"SEND_RDY":"");
rcout(CD180_CAR, rc->rc_chan);
printf("rc%d/%d: msvr %02x ier %02x ccsr %02x\n",
rc->rc_rcb->rcb_unit, rc->rc_chan,
rcin(CD180_MSVR),
rcin(CD180_IER),
rcin(CD180_CCSR));
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
#endif /* RCDEBUG */
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
static struct tty *
RISCom/8 driver
1995-05-12 15:09:29 +00:00
rcdevtotty(dev)
dev_t dev;
{
int unit;
unit = GET_UNIT(dev);
if (unit >= NRC * CD180_NCHAN)
return NULL;
return (&rc_tty[unit]);
}
static void
rc_dtrwakeup(chan)
void *chan;
{
struct rc_chans *rc;
rc = (struct rc_chans *)chan;
rc->rc_flags &= ~RC_DTR_OFF;
wakeup(&rc->rc_dtrwait);
}
static void
rc_discard_output(rc)
struct rc_chans *rc;
{
disable_intr();
if (rc->rc_flags & RC_DOXXFER) {
rc_scheduled_event -= LOTS_OF_EVENTS;
rc->rc_flags &= ~RC_DOXXFER;
}
rc->rc_optr = rc->rc_obufend;
rc->rc_tp->t_state &= ~TS_BUSY;
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
enable_intr();
Always wake up writers after clearing TS_BUSY. This will soon be essential when I fix excessive wakeups for output-below-low-water. In cy.c and sio.c, wake up via the driver start routine to also eliminate duplicated code involving the clearing of TS_TTSTOP. Always (except in code to be replaced soon) call driver start routine directly instead of going through ttstart().
1995-07-29 04:05:57 +00:00
ttwwakeup(rc->rc_tp);
RISCom/8 driver
1995-05-12 15:09:29 +00:00
}
static void
rc_wakeup(chan)
void *chan;
{
timeout(rc_wakeup, (caddr_t)NULL, 1);
if (rc_scheduled_event != 0) {
int s;
s = splsofttty();
rcpoll();
splx(s);
}
}
static void
disc_optim(tp, t, rc)
struct tty *tp;
struct termios *t;
struct rc_chans *rc;
{
Don't let IXOFF or ECHONL stop the setting of TS_CAN_BYPASS_L_RINT. IXOFF is handled at a low level, and ECHONL only applies if ICANON is set, although tty.c sometimes bogusly applies it when ICANON isn't set.
1995-07-29 08:33:13 +00:00
if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))
RISCom/8 driver
1995-05-12 15:09:29 +00:00
&& (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK))
Don't let IXOFF or ECHONL stop the setting of TS_CAN_BYPASS_L_RINT. IXOFF is handled at a low level, and ECHONL only applies if ICANON is set, although tty.c sometimes bogusly applies it when ICANON isn't set.
1995-07-29 08:33:13 +00:00
&& (!(t->c_iflag & PARMRK)
|| (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))
&& !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))
RISCom/8 driver
1995-05-12 15:09:29 +00:00
&& linesw[tp->t_line].l_rint == ttyinput)
tp->t_state |= TS_CAN_BYPASS_L_RINT;
else
tp->t_state &= ~TS_CAN_BYPASS_L_RINT;
if (tp->t_line == SLIPDISC)
rc->rc_hotchar = 0xc0;
else if (tp->t_line == PPPDISC)
rc->rc_hotchar = 0x7e;
else
rc->rc_hotchar = 0;
}
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
static void
rc_wait0(nec, unit, chan, line)
int nec, unit, chan, line;
{
int rcnt;
Convert a timeout loop from 100 iterations of 15uS to 50 iterations of 30uS so that really fast systems stop getting timeout messages from the Riscom driver. Reviewed by: ache, peter@nmti.com (Peter da Silva)
1996-03-09 18:59:00 +00:00
for (rcnt = 50; rcnt && rcin(CD180_CCR); rcnt--)
DELAY(30);
Next version, many bugs fixed
1995-06-14 19:37:02 +00:00
if (rcnt == 0)
printf("rc%d/%d: channel command timeout, rc.c line: %d\n",
unit, chan, line);
}
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
static rc_devsw_installed = 0;
OK, that's it.. That's EVERY SINGLE driver that has an entry in conf.c.. my next trick will be to define cdevsw[] and bdevsw[] as empty arrays and remove all those DAMNED defines as well.. Each of these drivers has a SYSINIT linker set entry that comes in very early.. and asks teh driver to add it's own entry to the two devsw[] tables. some slight reworking of the commits from yesterday (added the SYSINIT stuff and some usually wrong but token DEVFS entries to all these devices. BTW does anyone know where the 'ata' entries in conf.c actually reside? seems we don't actually have a 'ataopen() etc... If you want to add a new device in conf.c please make sure I know so I can keep it up to date too.. as before, this is all dependent on #if defined(JREMOD) (and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
static void rc_drvinit(void *unused)
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
{
OK, that's it.. That's EVERY SINGLE driver that has an entry in conf.c.. my next trick will be to define cdevsw[] and bdevsw[] as empty arrays and remove all those DAMNED defines as well.. Each of these drivers has a SYSINIT linker set entry that comes in very early.. and asks teh driver to add it's own entry to the two devsw[] tables. some slight reworking of the commits from yesterday (added the SYSINIT stuff and some usually wrong but token DEVFS entries to all these devices. BTW does anyone know where the 'ata' entries in conf.c actually reside? seems we don't actually have a 'ataopen() etc... If you want to add a new device in conf.c please make sure I know so I can keep it up to date too.. as before, this is all dependent on #if defined(JREMOD) (and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
dev_t dev;
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
if( ! rc_devsw_installed ) {
Pass 3 of the great devsw changes most devsw referenced functions are now static, as they are in the same file as their devsw structure. I've also added DEVFS support for nearly every device in the system, however many of the devices have 'incorrect' names under DEVFS because I couldn't quickly work out the correct naming conventions. (but devfs won't be coming on line for a month or so anyhow so that doesn't matter) If you "OWN" a device which would normally have an entry in /dev then search for the devfs_add_devsw() entries and munge to make them right.. check out similar devices to see what I might have done in them in you can't see what's going on.. for a laugh compare conf.c conf.h defore and after... :) I have not doen DEVFS entries for any DISKSLICE devices yet as that will be a much more complicated job.. (pass 5 :) pass 4 will be to make the devsw tables of type (cdevsw * ) rather than (cdevsw) seems to work here.. complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev,&rc_cdevsw, NULL);
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
rc_devsw_installed = 1;
If you're going to mechanically replicate something in 50 files it's best to not have a (compiles cleanly) typo in it! (sigh)
1995-11-29 14:41:20 +00:00
}
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
}
OK, that's it.. That's EVERY SINGLE driver that has an entry in conf.c.. my next trick will be to define cdevsw[] and bdevsw[] as empty arrays and remove all those DAMNED defines as well.. Each of these drivers has a SYSINIT linker set entry that comes in very early.. and asks teh driver to add it's own entry to the two devsw[] tables. some slight reworking of the commits from yesterday (added the SYSINIT stuff and some usually wrong but token DEVFS entries to all these devices. BTW does anyone know where the 'ata' entries in conf.c actually reside? seems we don't actually have a 'ataopen() etc... If you want to add a new device in conf.c please make sure I know so I can keep it up to date too.. as before, this is all dependent on #if defined(JREMOD) (and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
SYSINIT(rcdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,rc_drvinit,NULL)
RISCom/8 driver
1995-05-12 15:09:29 +00:00
#endif /* NRC */
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