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/* $OpenBSD: dz_fwio.c,v 1.2 2008/08/24 14:49:35 miod Exp $ */
/*
* Copyright (c) 2008 Miodrag Vallat.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* 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/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/sid.h>
#include <vax/mbus/mbusreg.h>
#include <vax/mbus/mbusvar.h>
#include <vax/mbus/fwioreg.h>
#include <vax/mbus/fwiovar.h>
#include <vax/qbus/dzreg.h>
#include <vax/qbus/dzvar.h>
#include <vax/dec/dzkbdvar.h>
#include <sys/tty.h>
#include <dev/cons.h>
#include "dzkbd.h"
#include "dzms.h"
int dz_fwio_match(struct device *, void *, void *);
void dz_fwio_attach(struct device *, struct device *, void *);
struct cfattach dz_fwio_ca = {
sizeof(struct dz_softc), dz_fwio_match, dz_fwio_attach
};
extern struct cfdriver dz_cd;
int dz_fwio_intr(void *);
#define DZ_FWIO_CSR 0
#define DZ_FWIO_RBUF 4
#define DZ_FWIO_DTR 9
#define DZ_FWIO_BREAK 13
#define DZ_FWIO_TBUF 12
#define DZ_FWIO_TCR 8
#define DZ_FWIO_DCD 13
#define DZ_FWIO_RING 13
int
dz_fwio_match(struct device *parent, void *vcf, void *aux)
{
struct fwio_attach_args *faa = (struct fwio_attach_args *)aux;
return strcmp(faa->faa_dev, dz_cd.cd_name) == 0 ? 1 : 0;
}
void
dz_fwio_attach(struct device *parent, struct device *self, void *aux)
{
struct fwio_attach_args *faa = (struct fwio_attach_args *)aux;
struct dz_softc *sc = (struct dz_softc *)self;
paddr_t basepa;
#if NDZKBD > 0 || NDZMS > 0
struct dzkm_attach_args daa;
extern struct consdev wsdisplay_cons;
#endif
extern vaddr_t dz_console_regs;
vaddr_t dz_regs;
unsigned int vec;
int console;
int serial_console;
vec = faa->faa_vecbase + FBIC_DEVIRQ2 * 4;
printf(" vec %d: ", vec);
/*
* Map registers.
*/
if (dz_console_regs != 0 && faa->faa_mid == mbus_ioslot) {
dz_regs = dz_console_regs;
console = 1;
serial_console = (vax_confdata & 0x60) == 0;
if (serial_console)
printf("console, ");
} else {
basepa = faa->faa_base + FWIO_DZ_REG_OFFSET;
dz_regs = vax_map_physmem(basepa, 1);
console = 0;
}
/*
* 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.
*/
sc->sc_ioh = dz_regs;
sc->sc_dr.dr_csr = DZ_FWIO_CSR;
sc->sc_dr.dr_rbuf = DZ_FWIO_RBUF;
sc->sc_dr.dr_tbuf = DZ_FWIO_TBUF;
sc->sc_dr.dr_tcr = DZ_FWIO_TCR;
sc->sc_dr.dr_dtr = DZ_FWIO_DTR;
sc->sc_dr.dr_break = DZ_FWIO_BREAK;
sc->sc_dr.dr_dcd = DZ_FWIO_DCD;
sc->sc_dr.dr_ring = DZ_FWIO_RING;
sc->sc_type = DZ_DZV;
/* no modem control bits except on line 2 */
sc->sc_dsr = (1 << 0) | (1 << 1) | (1 << 3);
printf("4 lines");
/*
* Complete attachment.
*/
dzattach(sc);
/*
* Register interrupt handler.
*/
if (mbus_intr_establish(vec, IPL_TTY, dz_fwio_intr, sc,
self->dv_xname) != 0) {
printf("\n%s: can't establish interrupt\n", self->dv_xname);
return;
}
/*
* Attach input devices, if any.
*/
#if NDZKBD > 0
daa.daa_line = 0;
DZ_WRITE_WORD(sc, dr_rbuf, DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) |
DZ_LPR_8_BIT_CHAR | daa.daa_line);
daa.daa_flags =
(console && cn_tab == &wsdisplay_cons ? DZKBD_CONSOLE : 0);
config_found(self, &daa, dz_print);
#endif
#if NDZMS > 0
daa.daa_line = 1;
DZ_WRITE_WORD(sc, dr_rbuf, DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) |
DZ_LPR_8_BIT_CHAR | DZ_LPR_PARENB | DZ_LPR_OPAR | daa.daa_line);
daa.daa_flags = 0;
config_found(self, &daa, dz_print);
#endif
}
int
dz_fwio_intr(void *v)
{
struct dz_softc *sc = (struct dz_softc *)v;
/*
* FBIC expects edge interrupts, while the dz does level
* interrupts. To avoid missing interrupts while servicing,
* we disable further device interrupts while servicing.
*/
DZ_WRITE_WORD(sc, dr_csr,
DZ_READ_WORD(sc, dr_csr) & ~(DZ_CSR_RXIE | DZ_CSR_TXIE));
dzrint(sc);
dzxint(sc);
DZ_WRITE_WORD(sc, dr_csr,
DZ_READ_WORD(sc, dr_csr) | (DZ_CSR_RXIE | DZ_CSR_TXIE));
return 1;
}
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