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mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
freebsd/sys/dev/uart/uart_bus_pci.c
Warner Losh 347934fa63 Sometimes cardbus attachments don't attach, so while we track down
this problem put these lines back in.  While they should be
unnecessary, they appear to be sometimes necessary.

Reviewed in concept: dfr
Approved by: re (scottl@)
2003-11-28 05:28:29 +00:00

119 lines
3.6 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
static int uart_pci_probe(device_t dev);
static device_method_t uart_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_pci_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t uart_pci_driver = {
uart_driver_name,
uart_pci_methods,
sizeof(struct uart_softc),
};
struct pci_id {
uint32_t type;
const char *desc;
int rid;
};
static struct pci_id pci_ns8250_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 },
{ 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
{ 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
{ 0x0103115d, "Xircom Cardbus modem", 0x10 },
{ 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 },
{ 0x01c0135c, "Quatech SSCLP-200/300", 0x18
/*
* NB: You must mount the "SPAD" jumper to correctly detect
* the FIFO on the UART. Set the options on the jumpers,
* we do not support the extra registers on the Quatech.
*/
},
{ 0x00000000, NULL, 0 }
};
static struct pci_id *
uart_pci_match(uint32_t type, struct pci_id *id)
{
while (id->type && id->type != type)
id++;
return ((id->type) ? id : NULL);
}
static int
uart_pci_probe(device_t dev)
{
struct uart_softc *sc;
struct pci_id *id;
sc = device_get_softc(dev);
id = uart_pci_match(pci_get_devid(dev), pci_ns8250_ids);
if (id != NULL) {
sc->sc_class = &uart_ns8250_class;
goto match;
}
/* Add checks for non-ns8250 IDs here. */
return (ENXIO);
match:
if (id->desc)
device_set_desc(dev, id->desc);
return (uart_bus_probe(dev, 0, 0, id->rid, 0));
}
DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, 0, 0);
DRIVER_MODULE(uart, cardbus, uart_pci_driver, uart_devclass, 0, 0);