freebsd-dev/sys/dev/bwn/if_bwn_pci.c
2020-09-01 21:43:48 +00:00

309 lines
8.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org>
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_bwn.h"
#include "opt_wlan.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/bhnd/bhndb/bhndb_pcivar.h>
#include <dev/bhnd/bhndb/bhndb_hwdata.h>
#include <dev/bhnd/bhndb/bhndb_pci_hwdata.h>
#include <dev/bhnd/bhnd_ids.h>
#include "bhndb_bus_if.h"
#include "if_bwn_pcivar.h"
/* If non-zero, enable attachment of BWN_QUIRK_UNTESTED devices */
static int attach_untested = 0;
TUNABLE_INT("hw.bwn_pci.attach_untested", &attach_untested);
/* SIBA Devices */
static const struct bwn_pci_device siba_devices[] = {
BWN_BCM_DEV(BCM4306_D11A, "BCM4306 802.11a",
BWN_QUIRK_WLAN_DUALCORE|BWN_QUIRK_SOFTMODEM_UNPOPULATED),
BWN_BCM_DEV(BCM4306_D11G, "BCM4306 802.11b/g",
BWN_QUIRK_SOFTMODEM_UNPOPULATED),
BWN_BCM_DEV(BCM4306_D11G_ID2, "BCM4306 802.11b/g",
BWN_QUIRK_SOFTMODEM_UNPOPULATED),
BWN_BCM_DEV(BCM4306_D11DUAL, "BCM4306 802.11a/b/g",
BWN_QUIRK_SOFTMODEM_UNPOPULATED),
BWN_BCM_DEV(BCM4307, "BCM4307 802.11b", 0),
BWN_BCM_DEV(BCM4311_D11G, "BCM4311 802.11b/g", 0),
BWN_BCM_DEV(BCM4311_D11DUAL, "BCM4311 802.11a/b/g", 0),
BWN_BCM_DEV(BCM4311_D11A, "BCM4311 802.11a",
BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE),
BWN_BCM_DEV(BCM4318_D11G, "BCM4318 802.11b/g", 0),
BWN_BCM_DEV(BCM4318_D11DUAL, "BCM4318 802.11a/b/g", 0),
BWN_BCM_DEV(BCM4318_D11A, "BCM4318 802.11a",
BWN_QUIRK_UNTESTED|BWN_QUIRK_WLAN_DUALCORE),
BWN_BCM_DEV(BCM4321_D11N, "BCM4321 802.11n Dual-Band",
BWN_QUIRK_USBH_UNPOPULATED),
BWN_BCM_DEV(BCM4321_D11N2G, "BCM4321 802.11n 2GHz",
BWN_QUIRK_USBH_UNPOPULATED),
BWN_BCM_DEV(BCM4321_D11N5G, "BCM4321 802.11n 5GHz",
BWN_QUIRK_UNTESTED|BWN_QUIRK_USBH_UNPOPULATED),
BWN_BCM_DEV(BCM4322_D11N, "BCM4322 802.11n Dual-Band", 0),
BWN_BCM_DEV(BCM4322_D11N2G, "BCM4322 802.11n 2GHz",
BWN_QUIRK_UNTESTED),
BWN_BCM_DEV(BCM4322_D11N5G, "BCM4322 802.11n 5GHz",
BWN_QUIRK_UNTESTED),
BWN_BCM_DEV(BCM4328_D11G, "BCM4328/4312 802.11g", 0),
{ 0, 0, NULL, 0 }
};
/** BCMA Devices */
static const struct bwn_pci_device bcma_devices[] = {
BWN_BCM_DEV(BCM4331_D11N, "BCM4331 802.11n Dual-Band", 0),
BWN_BCM_DEV(BCM4331_D11N2G, "BCM4331 802.11n 2GHz", 0),
BWN_BCM_DEV(BCM4331_D11N5G, "BCM4331 802.11n 5GHz", 0),
BWN_BCM_DEV(BCM43224_D11N, "BCM43224 802.11n Dual-Band", 0),
BWN_BCM_DEV(BCM43224_D11N_ID_VEN1, "BCM43224 802.11n Dual-Band",0),
BWN_BCM_DEV(BCM43225_D11N2G, "BCM43225 802.11n 2GHz", 0),
{ 0, 0, NULL, 0}
};
/** Device configuration table */
static const struct bwn_pci_devcfg bwn_pci_devcfgs[] = {
/* SIBA devices */
{
.bridge_hwcfg = &bhndb_pci_siba_generic_hwcfg,
.bridge_hwtable = bhndb_pci_generic_hw_table,
.bridge_hwprio = bhndb_siba_priority_table,
.devices = siba_devices
},
/* BCMA devices */
{
.bridge_hwcfg = &bhndb_pci_bcma_generic_hwcfg,
.bridge_hwtable = bhndb_pci_generic_hw_table,
.bridge_hwprio = bhndb_bcma_priority_table,
.devices = bcma_devices
},
{ NULL, NULL, NULL }
};
/** Search the device configuration table for an entry matching @p dev. */
static int
bwn_pci_find_devcfg(device_t dev, const struct bwn_pci_devcfg **cfg,
const struct bwn_pci_device **device)
{
const struct bwn_pci_devcfg *dvc;
const struct bwn_pci_device *dv;
for (dvc = bwn_pci_devcfgs; dvc->devices != NULL; dvc++) {
for (dv = dvc->devices; dv->device != 0; dv++) {
if (pci_get_vendor(dev) == dv->vendor &&
pci_get_device(dev) == dv->device)
{
if (cfg != NULL)
*cfg = dvc;
if (device != NULL)
*device = dv;
return (0);
}
}
}
return (ENOENT);
}
static int
bwn_pci_probe(device_t dev)
{
const struct bwn_pci_device *ident;
if (bwn_pci_find_devcfg(dev, NULL, &ident))
return (ENXIO);
/* Skip untested devices */
if (ident->quirks & BWN_QUIRK_UNTESTED && !attach_untested)
return (ENXIO);
device_set_desc(dev, ident->desc);
return (BUS_PROBE_DEFAULT);
}
static int
bwn_pci_attach(device_t dev)
{
struct bwn_pci_softc *sc;
const struct bwn_pci_device *ident;
int error;
sc = device_get_softc(dev);
sc->dev = dev;
/* Find our hardware config */
if (bwn_pci_find_devcfg(dev, &sc->devcfg, &ident))
return (ENXIO);
/* Save quirk flags */
sc->quirks = ident->quirks;
/* Attach bridge device */
if ((error = bhndb_attach_bridge(dev, &sc->bhndb_dev, -1)))
return (ENXIO);
/* Success */
return (0);
}
static int
bwn_pci_detach(device_t dev)
{
int error;
if ((error = bus_generic_detach(dev)))
return (error);
return (device_delete_children(dev));
}
static void
bwn_pci_probe_nomatch(device_t dev, device_t child)
{
const char *name;
name = device_get_name(child);
if (name == NULL)
name = "unknown device";
device_printf(dev, "<%s> (no driver attached)\n", name);
}
static const struct bhndb_hwcfg *
bwn_pci_get_generic_hwcfg(device_t dev, device_t child)
{
struct bwn_pci_softc *sc = device_get_softc(dev);
return (sc->devcfg->bridge_hwcfg);
}
static const struct bhndb_hw *
bwn_pci_get_bhndb_hwtable(device_t dev, device_t child)
{
struct bwn_pci_softc *sc = device_get_softc(dev);
return (sc->devcfg->bridge_hwtable);
}
static const struct bhndb_hw_priority *
bwn_pci_get_bhndb_hwprio(device_t dev, device_t child)
{
struct bwn_pci_softc *sc = device_get_softc(dev);
return (sc->devcfg->bridge_hwprio);
}
static bool
bwn_pci_is_core_disabled(device_t dev, device_t child,
struct bhnd_core_info *core)
{
struct bwn_pci_softc *sc;
sc = device_get_softc(dev);
switch (bhnd_core_class(core)) {
case BHND_DEVCLASS_WLAN:
if (core->unit > 0 && !(sc->quirks & BWN_QUIRK_WLAN_DUALCORE))
return (true);
return (false);
case BHND_DEVCLASS_ENET:
case BHND_DEVCLASS_ENET_MAC:
case BHND_DEVCLASS_ENET_PHY:
return ((sc->quirks & BWN_QUIRK_ENET_HW_UNPOPULATED) != 0);
case BHND_DEVCLASS_USB_HOST:
return ((sc->quirks & BWN_QUIRK_USBH_UNPOPULATED) != 0);
case BHND_DEVCLASS_SOFTMODEM:
return ((sc->quirks & BWN_QUIRK_SOFTMODEM_UNPOPULATED) != 0);
default:
return (false);
}
}
static device_method_t bwn_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bwn_pci_probe),
DEVMETHOD(device_attach, bwn_pci_attach),
DEVMETHOD(device_detach, bwn_pci_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_probe_nomatch, bwn_pci_probe_nomatch),
/* BHNDB_BUS Interface */
DEVMETHOD(bhndb_bus_get_generic_hwcfg, bwn_pci_get_generic_hwcfg),
DEVMETHOD(bhndb_bus_get_hardware_table, bwn_pci_get_bhndb_hwtable),
DEVMETHOD(bhndb_bus_get_hardware_prio, bwn_pci_get_bhndb_hwprio),
DEVMETHOD(bhndb_bus_is_core_disabled, bwn_pci_is_core_disabled),
DEVMETHOD_END
};
static devclass_t bwn_pci_devclass;
DEFINE_CLASS_0(bwn_pci, bwn_pci_driver, bwn_pci_methods,
sizeof(struct bwn_pci_softc));
DRIVER_MODULE_ORDERED(bwn_pci, pci, bwn_pci_driver, bwn_pci_devclass, NULL,
NULL, SI_ORDER_ANY);
MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, bwn_siba,
siba_devices, nitems(siba_devices) - 1);
MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, bwn_bcma,
bcma_devices, nitems(bcma_devices) - 1);
DRIVER_MODULE(bhndb, bwn_pci, bhndb_pci_driver, bhndb_devclass, NULL, NULL);
MODULE_DEPEND(bwn_pci, bwn, 1, 1, 1);
MODULE_DEPEND(bwn_pci, bhnd, 1, 1, 1);
MODULE_DEPEND(bwn_pci, bhndb, 1, 1, 1);
MODULE_DEPEND(bwn_pci, bhndb_pci, 1, 1, 1);
MODULE_DEPEND(bwn_pci, bcma_bhndb, 1, 1, 1);
MODULE_DEPEND(bwn_pci, siba_bhndb, 1, 1, 1);
MODULE_VERSION(bwn_pci, 1);