freebsd-skq/sys/dev/si/si_eisa.c
piso baf2de77c9 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Approved by: re (implicit?)
2007-02-23 20:11:27 +00:00

154 lines
3.8 KiB
C

/*-
* Device driver for Specialix range (SI/XIO) of serial line multiplexors.
*
* Copyright (C) 2000, Peter Wemm <peter@netplex.com.au>
*
* 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
* notices, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notices, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHORS BE LIABLE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/si/sireg.h>
#include <dev/si/sivar.h>
#include <dev/eisa/eisaconf.h>
static int
si_eisa_probe(device_t dev)
{
u_long iobase;
u_long maddr;
int irq;
if (eisa_get_id(dev) != SIEISADEVID)
return ENXIO;
device_set_desc(dev, "Specialix SI/XIO EISA host card");
iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + SIEISABASE;
eisa_add_iospace(dev, iobase, SIEISAIOSIZE, RESVADDR_NONE);
maddr = (inb(iobase+1) << 24) | (inb(iobase) << 16);
eisa_add_mspace(dev, maddr, SIEISA_MEMSIZE, RESVADDR_NONE);
irq = ((inb(iobase+2) >> 4) & 0xf);
eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL); /* XXX shared? */
return (0);
}
static int
si_eisa_attach(device_t dev)
{
struct si_softc *sc;
void *ih;
int error;
error = 0;
ih = NULL;
sc = device_get_softc(dev);
sc->sc_type = SIEISA;
sc->sc_port_rid = 0;
sc->sc_port_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&sc->sc_port_rid, RF_ACTIVE);
if (!sc->sc_port_res) {
device_printf(dev, "couldn't allocate ioports\n");
goto fail;
}
sc->sc_iobase = rman_get_start(sc->sc_port_res);
sc->sc_mem_rid = 0;
sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->sc_mem_rid, RF_ACTIVE);
if (!sc->sc_mem_res) {
device_printf(dev, "couldn't allocate iomemory");
goto fail;
}
sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res);
sc->sc_maddr = rman_get_virtual(sc->sc_mem_res);
sc->sc_irq_rid = 0;
sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->sc_irq_rid,
RF_ACTIVE | RF_SHAREABLE);
if (!sc->sc_irq_res) {
device_printf(dev, "couldn't allocate interrupt");
goto fail;
}
sc->sc_irq = rman_get_start(sc->sc_irq_res);
error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY,
NULL, si_intr, sc,&ih);
if (error) {
device_printf(dev, "couldn't activate interrupt");
goto fail;
}
error = siattach(dev);
if (error)
goto fail;
return (0); /* success */
fail:
if (error == 0)
error = ENXIO;
if (sc->sc_irq_res) {
if (ih)
bus_teardown_intr(dev, sc->sc_irq_res, ih);
bus_release_resource(dev, SYS_RES_IRQ,
sc->sc_irq_rid, sc->sc_irq_res);
sc->sc_irq_res = 0;
}
if (sc->sc_mem_res) {
bus_release_resource(dev, SYS_RES_MEMORY,
sc->sc_mem_rid, sc->sc_mem_res);
sc->sc_mem_res = 0;
}
if (sc->sc_port_res) {
bus_release_resource(dev, SYS_RES_IOPORT,
sc->sc_port_rid, sc->sc_port_res);
sc->sc_port_res = 0;
}
return (error);
}
static device_method_t si_eisa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, si_eisa_probe),
DEVMETHOD(device_attach, si_eisa_attach),
{ 0, 0 }
};
static driver_t si_eisa_driver = {
"si",
si_eisa_methods,
sizeof(struct si_softc),
};
DRIVER_MODULE(si, eisa, si_eisa_driver, si_devclass, 0, 0);