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/*-
* 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/pci/pcireg.h>
#include <dev/pci/pcivar.h>
static int
si_pci_probe(device_t dev)
{
const char *desc = NULL;
switch (pci_get_devid(dev)) {
case 0x400011cb:
desc = "Specialix SI/XIO PCI host card";
break;
case 0x200011cb:
if (pci_read_config(dev, SIJETSSIDREG, 4) == 0x020011cb)
desc = "Specialix SX PCI host card";
break;
}
if (desc) {
device_set_desc(dev, desc);
return BUS_PROBE_DEFAULT;
}
return ENXIO;
}
static int
si_pci_attach(device_t dev)
{
struct si_softc *sc;
void *ih;
int error;
error = 0;
ih = NULL;
sc = device_get_softc(dev);
switch (pci_get_devid(dev)) {
case 0x400011cb:
sc->sc_type = SIPCI;
sc->sc_mem_rid = SIPCIBADR;
break;
case 0x200011cb:
sc->sc_type = SIJETPCI;
sc->sc_mem_rid = SIJETBADR;
break;
}
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 map memory\n");
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 map interrupt\n");
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, "could not activate interrupt\n");
goto fail;
}
if (pci_get_devid(dev) == 0x200011cb) {
int rid;
struct resource *plx_res;
uint32_t *addr;
uint32_t oldvalue;
/* Perform a PLX control register fixup */
rid = PCIR_BAR(0);
plx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (plx_res == NULL) {
device_printf(dev, "couldn't map plx registers\n");
} else {
addr = rman_get_virtual(plx_res);
oldvalue = addr[0x50 / 4];
if (oldvalue != 0x18260000) {
device_printf(dev, "PLX register 0x50: 0x%08x changed to 0x%08x\n", oldvalue, 0x18260000);
addr[0x50 / 4] = 0x18260000;
}
bus_release_resource(dev, SYS_RES_MEMORY, rid, plx_res);
}
}
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;
}
return (error);
}
static device_method_t si_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, si_pci_probe),
DEVMETHOD(device_attach, si_pci_attach),
{ 0, 0 }
};
static driver_t si_pci_driver = {
"si",
si_pci_methods,
sizeof(struct si_softc),
};
DRIVER_MODULE(si, pci, si_pci_driver, si_devclass, 0, 0);
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