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freebsd/sys/dev/wi/if_wi_pci.c
Pedro F. Giffuni df57947f08 spdx: initial adoption of licensing ID tags.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes:	yes
Differential Revision:	https://reviews.freebsd.org/D13133
2017-11-18 14:26:50 +00:00

267 lines
7.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. 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 Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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.
*
* $FreeBSD$
*/
/*
* Lucent WaveLAN/IEEE 802.11 PCMCIA driver for FreeBSD.
*
* Written by Bill Paul <wpaul@ctr.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/wi/if_wavelan_ieee.h>
#include <dev/wi/if_wireg.h>
#include <dev/wi/if_wivar.h>
static int wi_pci_probe(device_t);
static int wi_pci_attach(device_t);
static int wi_pci_suspend(device_t);
static int wi_pci_resume(device_t);
static device_method_t wi_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, wi_pci_probe),
DEVMETHOD(device_attach, wi_pci_attach),
DEVMETHOD(device_detach, wi_detach),
DEVMETHOD(device_shutdown, wi_shutdown),
DEVMETHOD(device_suspend, wi_pci_suspend),
DEVMETHOD(device_resume, wi_pci_resume),
{ 0, 0 }
};
static driver_t wi_pci_driver = {
"wi",
wi_pci_methods,
sizeof(struct wi_softc)
};
static struct {
unsigned int vendor,device;
int bus_type;
char *desc;
} pci_ids[] = {
/* Sorted by description */
{0x10b7, 0x7770, WI_BUS_PCI_PLX, "3Com Airconnect"},
{0x16ab, 0x1101, WI_BUS_PCI_PLX, "GLPRISM2 WaveLAN"},
{0x1260, 0x3872, WI_BUS_PCI_NATIVE, "Intersil Prism3"},
{0x1260, 0x3873, WI_BUS_PCI_NATIVE, "Intersil Prism2.5"},
{0x16ab, 0x1102, WI_BUS_PCI_PLX, "Linksys WDT11"},
{0x1385, 0x4100, WI_BUS_PCI_PLX, "Netgear MA301"},
{0x1638, 0x1100, WI_BUS_PCI_PLX, "PRISM2STA WaveLAN"},
{0x111a, 0x1023, WI_BUS_PCI_PLX, "Siemens SpeedStream"},
{0x10b5, 0x9050, WI_BUS_PCI_PLX, "SMC 2602W"},
{0x16ec, 0x3685, WI_BUS_PCI_PLX, "US Robotics 2415"},
{0x4033, 0x7001, WI_BUS_PCI_PLX, "Addtron AWA-100 PCI"},
{0, 0, 0, NULL}
};
DRIVER_MODULE(wi, pci, wi_pci_driver, wi_devclass, 0, 0);
MODULE_DEPEND(wi, pci, 1, 1, 1);
MODULE_DEPEND(wi, wlan, 1, 1, 1);
static int
wi_pci_probe(dev)
device_t dev;
{
struct wi_softc *sc;
int i;
sc = device_get_softc(dev);
for(i=0; pci_ids[i].vendor != 0; i++) {
if ((pci_get_vendor(dev) == pci_ids[i].vendor) &&
(pci_get_device(dev) == pci_ids[i].device)) {
sc->wi_bus_type = pci_ids[i].bus_type;
device_set_desc(dev, pci_ids[i].desc);
return (BUS_PROBE_DEFAULT);
}
}
return(ENXIO);
}
static int
wi_pci_attach(device_t dev)
{
struct wi_softc *sc;
u_int32_t command;
u_int16_t reg;
int error;
int timeout;
sc = device_get_softc(dev);
if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
error = wi_alloc(dev, WI_PCI_IORES);
if (error)
return (error);
/* Make sure interrupts are disabled. */
CSR_WRITE_2(sc, WI_INT_EN, 0);
CSR_WRITE_2(sc, WI_EVENT_ACK, 0xFFFF);
/* We have to do a magic PLX poke to enable interrupts */
sc->local_rid = WI_PCI_LOCALRES;
sc->local = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&sc->local_rid, RF_ACTIVE);
sc->wi_localtag = rman_get_bustag(sc->local);
sc->wi_localhandle = rman_get_bushandle(sc->local);
command = bus_space_read_4(sc->wi_localtag, sc->wi_localhandle,
WI_LOCAL_INTCSR);
command |= WI_LOCAL_INTEN;
bus_space_write_4(sc->wi_localtag, sc->wi_localhandle,
WI_LOCAL_INTCSR, command);
bus_release_resource(dev, SYS_RES_IOPORT, sc->local_rid,
sc->local);
sc->local = NULL;
sc->mem_rid = WI_PCI_MEMRES;
sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->mem_rid, RF_ACTIVE);
if (sc->mem == NULL) {
device_printf(dev, "couldn't allocate memory\n");
wi_free(dev);
return (ENXIO);
}
sc->wi_bmemtag = rman_get_bustag(sc->mem);
sc->wi_bmemhandle = rman_get_bushandle(sc->mem);
/*
* Write COR to enable PC card
* This is a subset of the protocol that the pccard bus code
* would do. In theory, we should parse the CIS to find the
* COR offset. In practice, the COR_OFFSET is always 0x3e0.
*/
CSM_WRITE_1(sc, WI_COR_OFFSET, WI_COR_VALUE);
reg = CSM_READ_1(sc, WI_COR_OFFSET);
if (reg != WI_COR_VALUE) {
device_printf(dev, "CSM_READ_1(WI_COR_OFFSET) "
"wanted %d, got %d\n", WI_COR_VALUE, reg);
wi_free(dev);
return (ENXIO);
}
} else {
error = wi_alloc(dev, WI_PCI_LMEMRES);
if (error)
return (error);
CSR_WRITE_2(sc, WI_PCICOR_OFF, WI_PCICOR_RESET);
DELAY(250000);
CSR_WRITE_2(sc, WI_PCICOR_OFF, 0x0000);
DELAY(500000);
timeout=2000000;
while ((--timeout > 0) &&
(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY))
DELAY(10);
if (timeout == 0) {
device_printf(dev, "couldn't reset prism pci core.\n");
wi_free(dev);
return(ENXIO);
}
}
CSR_WRITE_2(sc, WI_HFA384X_SWSUPPORT0_OFF, WI_PRISM2STA_MAGIC);
reg = CSR_READ_2(sc, WI_HFA384X_SWSUPPORT0_OFF);
if (reg != WI_PRISM2STA_MAGIC) {
device_printf(dev,
"CSR_READ_2(WI_HFA384X_SWSUPPORT0_OFF) "
"wanted %d, got %d\n", WI_PRISM2STA_MAGIC, reg);
wi_free(dev);
return (ENXIO);
}
error = wi_attach(dev);
if (error != 0)
wi_free(dev);
return (error);
}
static int
wi_pci_suspend(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
WI_LOCK(sc);
wi_stop(sc, 1);
WI_UNLOCK(sc);
return (0);
}
static int
wi_pci_resume(device_t dev)
{
struct wi_softc *sc = device_get_softc(dev);
struct ieee80211com *ic = &sc->sc_ic;
WI_LOCK(sc);
if (sc->wi_bus_type != WI_BUS_PCI_NATIVE) {
WI_UNLOCK(sc);
return (0);
}
if (ic->ic_nrunning > 0)
wi_init(sc);
WI_UNLOCK(sc);
return (0);
}