NetBSD-5.0.2/sys/arch/vax/vsa/dz_vsbus.c
/* $NetBSD: dz_vsbus.c,v 1.40 2008/03/15 00:57:15 matt Exp $ */
/*
* Copyright (c) 1998 Ludd, University of Lule}, Sweden.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of
* Lule}, Sweden and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dz_vsbus.c,v 1.40 2008/03/15 00:57:15 matt Exp $");
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <dev/cons.h>
#include <machine/mtpr.h>
#include <machine/sid.h>
#include <machine/uvax.h>
#include <machine/vsbus.h>
#include <machine/cpu.h>
#include <machine/scb.h>
#include <arch/vax/vax/gencons.h>
#include <dev/dec/dzreg.h>
#include <dev/dec/dzvar.h>
#include "ioconf.h"
#include "locators.h"
#include "dzkbd.h"
#include "dzms.h"
#include "opt_cputype.h"
#if NDZKBD > 0 || NDZMS > 0
#include <dev/dec/dzkbdvar.h>
#if 0
static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL };
#endif
#endif
static int dz_vsbus_match(device_t, cfdata_t, void *);
static void dz_vsbus_attach(device_t, device_t, void *);
static vaddr_t dz_regs; /* Used for console */
CFATTACH_DECL_NEW(dz_vsbus, sizeof(struct dz_softc),
dz_vsbus_match, dz_vsbus_attach, NULL, NULL);
#define REG(name) short name; short X##name##X;
static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */
REG(csr); /* 00 Csr: control/status register */
REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */
REG(tcr); /* 08 Tcr: transmit console register */
REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */
REG(lpr0); /* 10 Lpr0: */
REG(lpr1); /* 14 Lpr0: */
REG(lpr2); /* 18 Lpr0: */
REG(lpr3); /* 1C Lpr0: */
} *dz;
#undef REG
cons_decl(dz);
#if NDZKBD > 0 || NDZMS > 0
static int
dz_print(void *aux, const char *name)
{
#if 0
#if NDZKBD > 0 || NDZMS > 0
struct dz_attach_args *dz_args = aux;
if (name == NULL) {
aprint_normal (" line %d", dz_args->line);
if (dz_args->hwflags & DZ_HWFLAG_CONSOLE)
aprint_normal (" (console)");
}
return (QUIET);
#else
if (name)
aprint_normal ("lkc at %s", name);
return (UNCONF);
#endif
#endif
return (UNCONF);
}
#endif
static int
dz_vsbus_match(device_t parent, cfdata_t cf, void *aux)
{
struct vsbus_attach_args * const va = aux;
struct ss_dz *dzP;
short i;
#if VAX53 || VAX49 || VAXANY
if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49)
if (cf->cf_loc[VSBUSCF_CSR] != 0x25000000)
return 0; /* Ugly */
#endif
dzP = (struct ss_dz *)va->va_addr;
i = dzP->tcr;
dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE;
dzP->tcr = 0;
DELAY(1000);
dzP->tcr = 1;
DELAY(100000);
dzP->tcr = i;
/* If the device doesn't exist, no interrupt has been generated */
return 1;
}
static void
dz_vsbus_attach(device_t parent, device_t self, void *aux)
{
struct dz_softc * const sc = device_private(self);
struct vsbus_attach_args * const va = aux;
#if NDZKBD > 0
extern const struct cdevsw dz_cdevsw;
#endif
#if NDZKBD > 0 || NDZMS > 0
struct dzkm_attach_args daa;
#endif
int s, consline;
sc->sc_dev = self;
/*
* XXX - This is evil and ugly, but...
* due to the nature of how bus_space_* works on VAX, this will
* be perfectly good until everything is converted.
*/
if (dz_regs == 0) /* This isn't console */ {
dz_regs = vax_map_physmem(va->va_paddr, 1);
consline = -1;
} else
consline = minor(cn_tab->cn_dev);
sc->sc_ioh = dz_regs;
sc->sc_dr.dr_csr = 0;
sc->sc_dr.dr_rbuf = 4;
sc->sc_dr.dr_dtr = 9;
sc->sc_dr.dr_break = 13;
sc->sc_dr.dr_tbuf = 12;
sc->sc_dr.dr_tcr = 8;
sc->sc_dr.dr_dcd = 13;
sc->sc_dr.dr_ring = 13;
sc->sc_dr.dr_firstreg = 0;
sc->sc_dr.dr_winsize = 14;
sc->sc_type = DZ_DZV;
sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */
scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt);
scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt);
aprint_normal("\n");
aprint_normal_dev(self, "4 lines");
dzattach(sc, NULL, consline);
DELAY(10000);
if (consline != -1)
cn_set_magic("\033D"); /* set VAX DDB escape sequence */
#if NDZKBD > 0
/* Don't touch this port if this is the console */
if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) {
dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8)
| DZ_LPR_8_BIT_CHAR;
daa.daa_line = 0;
daa.daa_flags =
(cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0);
config_found(self, &daa, dz_print);
}
#endif
#if NDZMS > 0
dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \
| DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */;
daa.daa_line = 1;
daa.daa_flags = 0;
config_found(self, &daa, dz_print);
#endif
s = spltty();
dzrint(sc);
dzxint(sc);
splx(s);
}
int
dzcngetc(dev_t dev)
{
int c = 0, s;
int mino = minor(dev);
u_short rbuf;
s = spltty();
do {
while ((dz->csr & 0x80) == 0)
; /* Wait for char */
rbuf = dz->rbuf;
if (((rbuf >> 8) & 3) != mino)
continue;
c = rbuf & 0x7f;
} while (c == 17 || c == 19); /* ignore XON/XOFF */
splx(s);
if (c == 13)
c = 10;
return (c);
}
void
dzcnprobe(struct consdev *cndev)
{
extern vaddr_t iospace;
int diagcons;
paddr_t ioaddr = 0x200A0000;
extern const struct cdevsw dz_cdevsw;
switch (vax_boardtype) {
case VAX_BTYP_410:
case VAX_BTYP_420:
case VAX_BTYP_43:
diagcons = (vax_confdata & 0x20 ? 3 : 0);
break;
case VAX_BTYP_46:
case VAX_BTYP_48:
diagcons = (vax_confdata & 0x100 ? 3 : 0);
break;
case VAX_BTYP_49:
ioaddr = 0x25000000;
diagcons = (vax_confdata & 8 ? 3 : 0);
break;
case VAX_BTYP_53:
ioaddr = 0x25000000;
diagcons = 3;
break;
default:
cndev->cn_pri = CN_DEAD;
return;
}
if (diagcons)
cndev->cn_pri = CN_REMOTE;
else
cndev->cn_pri = CN_NORMAL;
cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons);
dz_regs = iospace;
dz = (void *)dz_regs;
ioaccess(iospace, ioaddr, 1);
}
void
dzcninit(struct consdev *cndev)
{
dz = (void*)dz_regs;
dz->csr = 0; /* Disable scanning until initting is done */
dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */
dz->csr = 0x20; /* Turn scanning back on */
}
void
dzcnputc(dev_t dev, int ch)
{
int timeout = 1<<15; /* don't hang the machine! */
int mino = minor(dev);
int s;
u_short tcr;
if (mfpr(PR_MAPEN) == 0)
return;
s = spltty();
tcr = dz->tcr; /* remember which lines to scan */
dz->tcr = (1 << mino);
while ((dz->csr & 0x8000) == 0) /* Wait until ready */
if (--timeout < 0)
break;
dz->tdr = ch; /* Put the character */
timeout = 1<<15;
while ((dz->csr & 0x8000) == 0) /* Wait until ready */
if (--timeout < 0)
break;
dz->tcr = tcr;
splx(s);
}
void
dzcnpollc(dev_t dev, int pollflag)
{
static u_char mask;
if (pollflag)
mask = vsbus_setmask(0);
else
vsbus_setmask(mask);
}
#if NDZKBD > 0 || NDZMS > 0
int
dzgetc(struct dz_linestate *ls)
{
int line = ls->dz_line;
int s;
u_short rbuf;
s = spltty();
for (;;) {
for(; (dz->csr & DZ_CSR_RX_DONE) == 0;);
rbuf = dz->rbuf;
if (((rbuf >> 8) & 3) == line) {
splx(s);
return (rbuf & 0xff);
}
}
}
void
dzputc(struct dz_linestate *ls, int ch)
{
int line;
u_short tcr;
int s;
extern const struct cdevsw dz_cdevsw;
/* if the dz has already been attached, the MI
driver will do the transmitting: */
if (ls && ls->dz_sc) {
s = spltty();
line = ls->dz_line;
putc(ch, &ls->dz_tty->t_outq);
tcr = dz->tcr;
if (!(tcr & (1 << line)))
dz->tcr = tcr | (1 << line);
dzxint(ls->dz_sc);
splx(s);
return;
}
/* use dzcnputc to do the transmitting: */
dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch);
}
#endif /* NDZKBD > 0 || NDZMS > 0 */