2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 * redistribution must be conditioned upon including a substantially
16 * similar Disclaimer requirement for further binary redistribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
36 * PCI/Cardbus front-end for the Broadcom Wireless LAN controller driver.
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/module.h>
44 #include <sys/kernel.h>
46 #include <sys/malloc.h>
47 #include <sys/mutex.h>
48 #include <sys/errno.h>
50 #include <machine/bus.h>
51 #include <machine/resource.h>
55 #include <sys/socket.h>
58 #include <net/if_var.h>
59 #include <net/if_media.h>
60 #include <net/if_arp.h>
61 #include <net/ethernet.h>
63 #include <net80211/ieee80211_var.h>
64 #include <net80211/ieee80211_radiotap.h>
65 #include <net80211/ieee80211_amrr.h>
67 #include <dev/pci/pcivar.h>
68 #include <dev/pci/pcireg.h>
70 #include <dev/bwi/if_bwivar.h>
71 #include <dev/bwi/if_bwireg.h>
72 #include <dev/bwi/bitops.h>
78 struct bwi_pci_softc {
79 struct bwi_softc sc_sc;
83 #define PCIR_RETRY_TIMEOUT 0x41
85 static const struct bwi_dev {
90 { PCI_VENDOR_BROADCOM, 0x4301,"Broadcom BCM4301 802.11b Wireless Lan" },
91 { PCI_VENDOR_BROADCOM, 0x4307,"Broadcom BCM4307 802.11b Wireless Lan" },
92 { PCI_VENDOR_BROADCOM, 0x4311,"Broadcom BCM4311 802.11b/g Wireless Lan" },
93 { PCI_VENDOR_BROADCOM, 0x4312,"Broadcom BCM4312 802.11a/b/g Wireless Lan" },
94 { PCI_VENDOR_BROADCOM, 0x4313,"Broadcom BCM4312 802.11a Wireless Lan" },
95 { PCI_VENDOR_BROADCOM, 0x4320,"Broadcom BCM4306 802.11b/g Wireless Lan"},
96 { PCI_VENDOR_BROADCOM, 0x4321,"Broadcom BCM4306 802.11a Wireless Lan"},
97 { PCI_VENDOR_BROADCOM, 0x4325,"Broadcom BCM4306 802.11b/g Wireless Lan"},
98 { PCI_VENDOR_BROADCOM, 0x4324,"Broadcom BCM4309 802.11a/b/g Wireless Lan" },
99 { PCI_VENDOR_BROADCOM, 0x4318,"Broadcom BCM4318 802.11b/g Wireless Lan" },
100 { PCI_VENDOR_BROADCOM, 0x4319,"Broadcom BCM4318 802.11a/b/g Wireless Lan" },
101 { PCI_VENDOR_BROADCOM, 0x431a,"Broadcom BCM4318 802.11a Wireless Lan" },
106 bwi_pci_probe(device_t dev)
108 const struct bwi_dev *b;
111 did = pci_get_device(dev);
112 vid = pci_get_vendor(dev);
114 for (b = bwi_devices; b->desc != NULL; ++b) {
115 if (b->did == did && b->vid == vid) {
116 device_set_desc(dev, b->desc);
117 return BUS_PROBE_DEFAULT;
124 bwi_pci_attach(device_t dev)
126 struct bwi_pci_softc *psc = device_get_softc(dev);
127 struct bwi_softc *sc = &psc->sc_sc;
133 * Enable bus mastering.
135 pci_enable_busmaster(dev);
138 * Setup memory-mapping of PCI registers.
140 sc->sc_mem_rid = BWI_PCIR_BAR;
141 sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
142 &sc->sc_mem_rid, RF_ACTIVE);
143 if (sc->sc_mem_res == NULL) {
144 device_printf(dev, "cannot map register space\n");
147 sc->sc_mem_bt = rman_get_bustag(sc->sc_mem_res);
148 sc->sc_mem_bh = rman_get_bushandle(sc->sc_mem_res);
150 * Mark device invalid so any interrupts (shared or otherwise)
151 * that arrive before the card is setup are discarded.
156 * Arrange interrupt line.
159 sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
161 RF_SHAREABLE|RF_ACTIVE);
162 if (sc->sc_irq_res == NULL) {
163 device_printf(dev, "could not map interrupt\n");
167 /* Get more PCI information */
168 sc->sc_pci_did = pci_get_device(dev);
169 sc->sc_pci_revid = pci_get_revid(dev);
170 sc->sc_pci_subvid = pci_get_subvendor(dev);
171 sc->sc_pci_subdid = pci_get_subdevice(dev);
173 if ((error = bwi_attach(sc)) != 0)
176 if (bus_setup_intr(dev, sc->sc_irq_res,
177 INTR_TYPE_NET | INTR_MPSAFE,
178 NULL, bwi_intr, sc, &sc->sc_irq_handle)) {
179 device_printf(dev, "could not establish interrupt\n");
185 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
187 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res);
193 bwi_pci_detach(device_t dev)
195 struct bwi_pci_softc *psc = device_get_softc(dev);
196 struct bwi_softc *sc = &psc->sc_sc;
198 /* check if device was removed */
199 sc->sc_invalid = !bus_child_present(dev);
203 bus_generic_detach(dev);
204 bus_teardown_intr(dev, sc->sc_irq_res, sc->sc_irq_handle);
205 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq_res);
207 bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, sc->sc_mem_res);
213 bwi_pci_shutdown(device_t dev)
215 struct bwi_pci_softc *psc = device_get_softc(dev);
217 bwi_shutdown(&psc->sc_sc);
222 bwi_pci_suspend(device_t dev)
224 struct bwi_pci_softc *psc = device_get_softc(dev);
226 bwi_suspend(&psc->sc_sc);
232 bwi_pci_resume(device_t dev)
234 struct bwi_pci_softc *psc = device_get_softc(dev);
236 bwi_resume(&psc->sc_sc);
241 static device_method_t bwi_pci_methods[] = {
242 /* Device interface */
243 DEVMETHOD(device_probe, bwi_pci_probe),
244 DEVMETHOD(device_attach, bwi_pci_attach),
245 DEVMETHOD(device_detach, bwi_pci_detach),
246 DEVMETHOD(device_shutdown, bwi_pci_shutdown),
247 DEVMETHOD(device_suspend, bwi_pci_suspend),
248 DEVMETHOD(device_resume, bwi_pci_resume),
252 static driver_t bwi_driver = {
255 sizeof (struct bwi_pci_softc)
257 static devclass_t bwi_devclass;
258 DRIVER_MODULE(bwi, pci, bwi_driver, bwi_devclass, 0, 0);
259 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, bwi, bwi_devices,
260 sizeof(bwi_devices[0]), nitems(bwi_devices) - 1);
261 MODULE_DEPEND(bwi, wlan, 1, 1, 1); /* 802.11 media layer */
262 MODULE_DEPEND(bwi, firmware, 1, 1, 1); /* firmware support */
263 MODULE_DEPEND(bwi, wlan_amrr, 1, 1, 1);