freebsd-nq/sys/dev/puc/puc_pci.c
Marcel Moolenaar 64220a7e28 Rewrite of puc(4). Significant changes are:
o  Properly use rman(9) to manage resources. This eliminates the
   need to puc-specific hacks to rman. It also allows devinfo(8)
   to be used to find out the specific assignment of resources to
   serial/parallel ports.
o  Compress the PCI device "database" by optimizing for the common
   case and to use a procedural interface to handle the exceptions.
   The procedural interface also generalizes the need to setup the
   hardware (program chipsets, program clock frequencies).
o  Eliminate the need for PUC_FASTINTR. Serdev devices are fast by
   default and non-serdev devices are handled by the bus.
o  Use the serdev I/F to collect interrupt status and to handle
   interrupts across ports in priority order.
o  Sync the PCI device configuration to include devices found in
   NetBSD and not yet merged to FreeBSD.
o  Add support for Quatech 2, 4 and 8 port UARTs.
o  Add support for a couple dozen Timedia serial cards as found
   in Linux.
2006-04-28 21:21:53 +00:00

143 lines
5.3 KiB
C

/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
/*-
* Copyright (c) 2002 JF Hay. All rights reserved.
* Copyright (c) 2000 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
/*-
* Copyright (c) 1996, 1998, 1999
* Christopher G. Demetriou. 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 by Christopher G. Demetriou
* for the NetBSD Project.
* 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>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/puc/puc_bfe.h>
#include <dev/puc/puc_cfg.h>
static const struct puc_cfg *
puc_pci_match(device_t dev, const struct puc_cfg *desc)
{
uint16_t device, subdev, subven, vendor;
vendor = pci_get_vendor(dev);
device = pci_get_device(dev);
while (desc->vendor != 0xffff &&
(desc->vendor != vendor || desc->device != device))
desc++;
if (desc->vendor == 0xffff)
return (NULL);
if (desc->subvendor == 0xffff)
return (desc);
subven = pci_get_subvendor(dev);
subdev = pci_get_subdevice(dev);
while (desc->vendor == vendor && desc->device == device &&
(desc->subvendor != subven || desc->subdevice != subdev))
desc++;
return ((desc->vendor == vendor && desc->device == device)
? desc : NULL);
}
static int
puc_pci_probe(device_t dev)
{
const struct puc_cfg *desc;
if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
return (ENXIO);
desc = puc_pci_match(dev, puc_pci_devices);
if (desc == NULL)
return (ENXIO);
return (puc_bfe_probe(dev, desc));
}
static device_method_t puc_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, puc_pci_probe),
DEVMETHOD(device_attach, puc_bfe_attach),
DEVMETHOD(device_detach, puc_bfe_detach),
DEVMETHOD(bus_alloc_resource, puc_bus_alloc_resource),
DEVMETHOD(bus_release_resource, puc_bus_release_resource),
DEVMETHOD(bus_get_resource, puc_bus_get_resource),
DEVMETHOD(bus_read_ivar, puc_bus_read_ivar),
DEVMETHOD(bus_setup_intr, puc_bus_setup_intr),
DEVMETHOD(bus_teardown_intr, puc_bus_teardown_intr),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t puc_pci_driver = {
puc_driver_name,
puc_pci_methods,
sizeof(struct puc_softc),
};
DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
DRIVER_MODULE(puc, cardbus, puc_pci_driver, puc_devclass, 0, 0);