257 lines
6.9 KiB
C
257 lines
6.9 KiB
C
/*-
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* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* PCI/Cardbus front-end for the Broadcom Wireless LAN controller driver.
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*/
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/errno.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net/if_arp.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_amrr.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/bwi/if_bwivar.h>
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#include <dev/bwi/if_bwireg.h>
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#include <dev/bwi/bitops.h>
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/*
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* PCI glue.
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*/
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struct bwi_pci_softc {
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struct bwi_softc sc_sc;
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};
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#define BS_BAR 0x10
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#define PCIR_RETRY_TIMEOUT 0x41
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static const struct bwi_dev {
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uint16_t vid;
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uint16_t did;
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const char *desc;
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} bwi_devices[] = {
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{ PCI_VENDOR_BROADCOM, 0x4301,"Broadcom BCM4301 802.11b Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4307,"Broadcom BCM4307 802.11b Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4311,"Broadcom BCM4311 802.11b/g Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4312,"Broadcom BCM4312 802.11a/b/g Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4313,"Broadcom BCM4312 802.11a Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4320,"Broadcom BCM4306 802.11b/g Wireless Lan"},
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{ PCI_VENDOR_BROADCOM, 0x4321,"Broadcom BCM4306 802.11a Wireless Lan"},
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{ PCI_VENDOR_BROADCOM, 0x4325,"Broadcom BCM4306 802.11b/g Wireless Lan"},
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{ PCI_VENDOR_BROADCOM, 0x4324,"Broadcom BCM4309 802.11a/b/g Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4318,"Broadcom BCM4318 802.11b/g Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x4319,"Broadcom BCM4318 802.11a/b/g Wireless Lan" },
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{ PCI_VENDOR_BROADCOM, 0x431a,"Broadcom BCM4318 802.11a Wireless Lan" },
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{ 0, 0, NULL }
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};
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static int
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bwi_pci_probe(device_t dev)
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{
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const struct bwi_dev *b;
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uint16_t did, vid;
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did = pci_get_device(dev);
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vid = pci_get_vendor(dev);
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for (b = bwi_devices; b->desc != NULL; ++b) {
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if (b->did == did && b->vid == vid) {
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device_set_desc(dev, b->desc);
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return BUS_PROBE_DEFAULT;
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}
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}
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return ENXIO;
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}
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static int
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bwi_pci_attach(device_t dev)
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{
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struct bwi_pci_softc *psc = device_get_softc(dev);
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struct bwi_softc *sc = &psc->sc_sc;
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int error = ENXIO;
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sc->sc_dev = dev;
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/*
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* Enable bus mastering.
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*/
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pci_enable_busmaster(dev);
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/*
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* Setup memory-mapping of PCI registers.
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*/
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sc->sc_mem_rid = BWI_PCIR_BAR;
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sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->sc_mem_rid, RF_ACTIVE);
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if (sc->sc_mem_res == NULL) {
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device_printf(dev, "cannot map register space\n");
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goto bad;
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}
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sc->sc_mem_bt = rman_get_bustag(sc->sc_mem_res);
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sc->sc_mem_bh = rman_get_bushandle(sc->sc_mem_res);
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/*
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* Mark device invalid so any interrupts (shared or otherwise)
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* that arrive before the card is setup are discarded.
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*/
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sc->sc_invalid = 1;
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/*
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* Arrange interrupt line.
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*/
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sc->sc_irq_rid = 0;
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sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->sc_irq_rid,
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RF_SHAREABLE|RF_ACTIVE);
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if (sc->sc_irq_res == NULL) {
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device_printf(dev, "could not map interrupt\n");
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goto bad1;
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}
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if (bus_setup_intr(dev, sc->sc_irq_res,
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INTR_TYPE_NET | INTR_MPSAFE,
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NULL, bwi_intr, sc, &sc->sc_irq_handle)) {
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device_printf(dev, "could not establish interrupt\n");
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goto bad2;
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}
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/* Get more PCI information */
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sc->sc_pci_did = pci_get_device(dev);
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sc->sc_pci_revid = pci_get_revid(dev);
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sc->sc_pci_subvid = pci_get_subvendor(dev);
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sc->sc_pci_subdid = pci_get_subdevice(dev);
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error = bwi_attach(sc);
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if (error == 0) /* success */
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return 0;
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bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
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bad2:
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bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
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bad1:
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bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res);
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bad:
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return (error);
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}
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static int
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bwi_pci_detach(device_t dev)
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{
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struct bwi_pci_softc *psc = device_get_softc(dev);
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struct bwi_softc *sc = &psc->sc_sc;
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/* check if device was removed */
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sc->sc_invalid = !bus_child_present(dev);
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bwi_detach(sc);
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bus_generic_detach(dev);
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bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
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bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
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bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res);
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return (0);
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}
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static int
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bwi_pci_shutdown(device_t dev)
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{
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struct bwi_pci_softc *psc = device_get_softc(dev);
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bwi_shutdown(&psc->sc_sc);
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return (0);
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}
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static int
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bwi_pci_suspend(device_t dev)
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{
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struct bwi_pci_softc *psc = device_get_softc(dev);
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bwi_suspend(&psc->sc_sc);
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return (0);
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}
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static int
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bwi_pci_resume(device_t dev)
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{
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struct bwi_pci_softc *psc = device_get_softc(dev);
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bwi_resume(&psc->sc_sc);
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return (0);
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}
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static device_method_t bwi_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, bwi_pci_probe),
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DEVMETHOD(device_attach, bwi_pci_attach),
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DEVMETHOD(device_detach, bwi_pci_detach),
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DEVMETHOD(device_shutdown, bwi_pci_shutdown),
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DEVMETHOD(device_suspend, bwi_pci_suspend),
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DEVMETHOD(device_resume, bwi_pci_resume),
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{ 0,0 }
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};
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static driver_t bwi_driver = {
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"bwi",
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bwi_pci_methods,
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sizeof (struct bwi_pci_softc)
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};
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static devclass_t bwi_devclass;
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DRIVER_MODULE(bwi, pci, bwi_driver, bwi_devclass, 0, 0);
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MODULE_DEPEND(bwi, wlan, 1, 1, 1); /* 802.11 media layer */
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MODULE_DEPEND(bwi, firmware, 1, 1, 1); /* firmware support */
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MODULE_DEPEND(bwi, wlan_amrr, 1, 1, 1);
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