freebsd-skq/sys/dev/if_ndis/if_ndis_pci.c
Bill Paul f454f98c31 Make the Texas Instruments 802.11g chipset work with the NDISulator.
This was tested with a Netgear WG311v2 802.11b/g PCI card. Things
that were fixed:

- This chip has two memory mapped regions, one at PCIR_BAR(0) and the
  other at PCIR_BAR(1). This is a little different from the other
  chips I've seen with two PCI shared memory regions, since they tend
  to have the second BAR ad PCIR_BAR(2). if_ndis_pci.c tests explicitly
  for PCIR_BAR(2). This has been changed to simply fill in ndis_res_mem
  first and ndis_res_altmem second, if a second shared memory range
  exists. Given that NDIS drivers seem to scan for BARs in ascending
  order, I think this should be ok.

- Fixed the code that tries to process firmware images that have been
  loaded as .ko files. To save a step, I was setting up the address
  mapping in ndis_open_file(), but ndis_map_file() flags pre-existing
  mappings as an error (to avoid duplicate mappings). Changed this so
  that the mapping is now donw in ndis_map_file() as expected.

- Made the typedef for 'driver_entry' explicitly include __stdcall
  to silence gcc warning in ndis_load_driver().

NOTE: the Texas Instruments ACX111 driver needs firmware. With my
card, there were 3 .bin files shipped with the driver. You must
either put these files in /compat/ndis or convert them with
ndiscvt -f and kldload them so the driver can use them. Without
the firmware image, the NIC won't work.
2004-08-16 18:50:20 +00:00

341 lines
8.9 KiB
C

/*
* Copyright (c) 2003
* Bill Paul <wpaul@windriver.com>. 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_media.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <net80211/ieee80211_var.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <compat/ndis/pe_var.h>
#include <compat/ndis/resource_var.h>
#include <compat/ndis/ntoskrnl_var.h>
#include <compat/ndis/ndis_var.h>
#include <compat/ndis/cfg_var.h>
#include <dev/if_ndis/if_ndisvar.h>
#include "ndis_driver_data.h"
#ifdef NDIS_PCI_DEV_TABLE
MODULE_DEPEND(ndis, pci, 1, 1, 1);
MODULE_DEPEND(ndis, ether, 1, 1, 1);
MODULE_DEPEND(ndis, wlan, 1, 1, 1);
MODULE_DEPEND(ndis, ndisapi, 1, 1, 1);
/*
* Various supported device vendors/types and their names.
* These are defined in the ndis_driver_data.h file.
*/
static struct ndis_pci_type ndis_devs[] = {
#ifdef NDIS_PCI_DEV_TABLE
NDIS_PCI_DEV_TABLE
#endif
{ 0, 0, 0, NULL }
};
static int ndis_probe_pci (device_t);
static int ndis_attach_pci (device_t);
static struct resource_list *ndis_get_resource_list
(device_t, device_t);
extern int ndis_attach (device_t);
extern int ndis_shutdown (device_t);
extern int ndis_detach (device_t);
extern int ndis_suspend (device_t);
extern int ndis_resume (device_t);
extern struct mtx_pool *ndis_mtxpool;
static device_method_t ndis_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ndis_probe_pci),
DEVMETHOD(device_attach, ndis_attach_pci),
DEVMETHOD(device_detach, ndis_detach),
DEVMETHOD(device_shutdown, ndis_shutdown),
DEVMETHOD(device_suspend, ndis_suspend),
DEVMETHOD(device_resume, ndis_resume),
/* Bus interface */
DEVMETHOD(bus_get_resource_list, ndis_get_resource_list),
{ 0, 0 }
};
static driver_t ndis_driver = {
#ifdef NDIS_DEVNAME
NDIS_DEVNAME,
#else
"ndis",
#endif
ndis_methods,
sizeof(struct ndis_softc)
};
static devclass_t ndis_devclass;
#ifdef NDIS_MODNAME
#define NDIS_MODNAME_OVERRIDE_PCI(x) \
DRIVER_MODULE(x, pci, ndis_driver, ndis_devclass, 0, 0)
#define NDIS_MODNAME_OVERRIDE_CARDBUS(x) \
DRIVER_MODULE(x, cardbus, ndis_driver, ndis_devclass, 0, 0)
NDIS_MODNAME_OVERRIDE_PCI(NDIS_MODNAME);
NDIS_MODNAME_OVERRIDE_CARDBUS(NDIS_MODNAME);
#else
DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, 0, 0);
DRIVER_MODULE(ndis, cardbus, ndis_driver, ndis_devclass, 0, 0);
#endif
/*
* Probe for an NDIS device. Check the PCI vendor and device
* IDs against our list and return a device name if we find a match.
*/
static int
ndis_probe_pci(dev)
device_t dev;
{
struct ndis_pci_type *t;
t = ndis_devs;
while(t->ndis_name != NULL) {
if ((pci_get_vendor(dev) == t->ndis_vid) &&
(pci_get_device(dev) == t->ndis_did) &&
((pci_read_config(dev, PCIR_SUBVEND_0, 4) ==
t->ndis_subsys) || t->ndis_subsys == 0)) {
device_set_desc(dev, t->ndis_name);
return(0);
}
t++;
}
return(ENXIO);
}
/*
* Attach the interface. Allocate softc structures, do ifmedia
* setup and ethernet/BPF attach.
*/
static int
ndis_attach_pci(dev)
device_t dev;
{
struct ndis_softc *sc;
int unit, error = 0, rid;
struct ndis_pci_type *t;
int devidx = 0, defidx = 0;
struct resource_list *rl;
struct resource_list_entry *rle;
sc = device_get_softc(dev);
unit = device_get_unit(dev);
sc->ndis_dev = dev;
/*
* Map control/status registers.
*/
pci_enable_busmaster(dev);
rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
if (rl != NULL) {
SLIST_FOREACH(rle, rl, link) {
switch (rle->type) {
case SYS_RES_IOPORT:
sc->ndis_io_rid = rle->rid;
sc->ndis_res_io = bus_alloc_resource(dev,
SYS_RES_IOPORT, &sc->ndis_io_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_io == NULL) {
device_printf(dev,
"couldn't map iospace\n");
error = ENXIO;
goto fail;
}
break;
case SYS_RES_MEMORY:
if (sc->ndis_res_altmem != NULL &&
sc->ndis_res_mem != NULL) {
device_printf(dev,
"too many memory resources\n");
error = ENXIO;
goto fail;
}
if (sc->ndis_res_mem) {
sc->ndis_altmem_rid = rle->rid;
sc->ndis_res_altmem =
bus_alloc_resource(dev,
SYS_RES_MEMORY,
&sc->ndis_altmem_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_altmem == NULL) {
device_printf(dev,
"couldn't map alt "
"memory\n");
error = ENXIO;
goto fail;
}
} else {
sc->ndis_mem_rid = rle->rid;
sc->ndis_res_mem =
bus_alloc_resource(dev,
SYS_RES_MEMORY,
&sc->ndis_mem_rid,
0, ~0, 1, RF_ACTIVE);
if (sc->ndis_res_mem == NULL) {
device_printf(dev,
"couldn't map memory\n");
error = ENXIO;
goto fail;
}
}
break;
case SYS_RES_IRQ:
rid = rle->rid;
sc->ndis_irq = bus_alloc_resource(dev,
SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->ndis_irq == NULL) {
device_printf(dev,
"couldn't map interrupt\n");
error = ENXIO;
goto fail;
}
break;
default:
break;
}
sc->ndis_rescnt++;
}
}
/*
* If the BIOS did not set up an interrupt for this device,
* the resource traversal code above will fail to set up
* an IRQ resource. This is usually a bad thing, so try to
* force the allocation of an interrupt here. If one was
* not assigned to us by the BIOS, bus_alloc_resource()
* should route one for us.
*/
if (sc->ndis_irq == NULL) {
rid = 0;
sc->ndis_irq = bus_alloc_resource(dev, SYS_RES_IRQ,
&rid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE);
if (sc->ndis_irq == NULL) {
device_printf(dev, "couldn't route interrupt\n");
error = ENXIO;
goto fail;
}
sc->ndis_rescnt++;
}
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
#define NDIS_NSEG_NEW 32
error = bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, NDIS_NSEG_NEW,/* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ndis_parent_tag);
if (error)
goto fail;
sc->ndis_iftype = PCIBus;
/* Figure out exactly which device we matched. */
t = ndis_devs;
while(t->ndis_name != NULL) {
if ((pci_get_vendor(dev) == t->ndis_vid) &&
(pci_get_device(dev) == t->ndis_did)) {
if (t->ndis_subsys == 0)
defidx = devidx;
else {
if (t->ndis_subsys ==
pci_read_config(dev, PCIR_SUBVEND_0, 4))
break;
}
}
t++;
devidx++;
}
if (ndis_devs[devidx].ndis_name == NULL)
sc->ndis_devidx = defidx;
else
sc->ndis_devidx = devidx;
error = ndis_attach(dev);
fail:
return(error);
}
static struct resource_list *
ndis_get_resource_list(dev, child)
device_t dev;
device_t child;
{
struct ndis_softc *sc;
sc = device_get_softc(dev);
return (BUS_GET_RESOURCE_LIST(device_get_parent(sc->ndis_dev), dev));
}
#endif /* NDIS_PCI_DEV_TABLE */