freebsd-nq/sys/dev/sio/sio_pci.c
Warner Losh 1c988e75f4 bde suggests that sio really wants to manage its own softc. This
allows us to move the sio softc data structure back into sio.c and
reduce the complexity of the non sio.c sio files.

Submitted by: bde

# I didn't fix the locking issues that bruce also submitted.
2001-11-26 07:39:51 +00:00

146 lines
4.0 KiB
C

/*
* Copyright (c) 2001 M. Warner Losh. 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 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/tty.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <sys/timepps.h>
#include <dev/sio/siovar.h>
#include <pci/pcivar.h>
static int sio_pci_attach __P((device_t dev));
static void sio_pci_kludge_unit __P((device_t dev));
static int sio_pci_probe __P((device_t dev));
static device_method_t sio_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sio_pci_probe),
DEVMETHOD(device_attach, sio_pci_attach),
{ 0, 0 }
};
static driver_t sio_pci_driver = {
sio_driver_name,
sio_pci_methods,
0,
};
struct pci_ids {
u_int32_t type;
const char *desc;
int rid;
};
static struct pci_ids pci_ids[] = {
{ 0x100812b9, "3COM PCI FaxModem", 0x10 },
{ 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
{ 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
{ 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
{ 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
{ 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
/* { 0xXXXXXXXX, "Xircom Cardbus modem", 0x10 }, */
{ 0x00000000, NULL, 0 }
};
static int
sio_pci_attach(dev)
device_t dev;
{
u_int32_t type;
struct pci_ids *id;
type = pci_get_devid(dev);
id = pci_ids;
while (id->type && id->type != type)
id++;
if (id->desc == NULL)
return (ENXIO);
sio_pci_kludge_unit(dev);
return (sioattach(dev, id->rid));
}
/*
* Don't cut and paste this to other drivers. It is a horrible kludge
* which will fail to work and also be unnecessary in future versions.
*/
static void
sio_pci_kludge_unit(dev)
device_t dev;
{
devclass_t dc;
int err;
int start;
int unit;
unit = 0;
start = 0;
while (resource_int_value("sio", unit, "port", &start) == 0 &&
start > 0)
unit++;
if (device_get_unit(dev) < unit) {
dc = device_get_devclass(dev);
while (devclass_get_device(dc, unit))
unit++;
device_printf(dev, "moving to sio%d\n", unit);
err = device_set_unit(dev, unit); /* EVIL DO NOT COPY */
if (err)
device_printf(dev, "error moving device %d\n", err);
}
}
static int
sio_pci_probe(dev)
device_t dev;
{
u_int32_t type;
struct pci_ids *id;
type = pci_get_devid(dev);
id = pci_ids;
while (id->type && id->type != type)
id++;
if (id->desc == NULL)
return (ENXIO);
device_set_desc(dev, id->desc);
return (sioprobe(dev, id->rid, 0));
}
DRIVER_MODULE(sio, pci, sio_pci_driver, sio_devclass, 0, 0);
DRIVER_MODULE(sio, cardbus, sio_pci_driver, sio_devclass, 0, 0);