9063402978
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch], sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw, awi, ipw, iwi, rtw, wi) for the new net80211(9) API.
526 lines
14 KiB
C
526 lines
14 KiB
C
/* $NetBSD: if_rtw_cardbus.c,v 1.7 2005/06/22 06:15:37 dyoung Exp $ */
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/*-
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* Copyright (c) 2004, 2005 David Young. All rights reserved.
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*
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* Adapted for the RTL8180 by David Young.
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of David Young may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY David Young ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL David
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* Young BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* 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 IN
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* 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 THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Cardbus front-end for the Realtek RTL8180 802.11 MAC/BBP driver.
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*
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* TBD factor with atw, tlp Cardbus front-ends?
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_rtw_cardbus.c,v 1.7 2005/06/22 06:15:37 dyoung Exp $");
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#include "opt_inet.h"
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#include "opt_ns.h"
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <machine/endian.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_ether.h>
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#include <net80211/ieee80211_netbsd.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <net80211/ieee80211_var.h>
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#endif
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ic/rtwreg.h>
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#include <dev/ic/rtwvar.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/pci/pcidevs.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/pci/pcidevs.h>
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/*
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* PCI configuration space registers used by the RTL8180.
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*/
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#define RTW_PCI_IOBA 0x10 /* i/o mapped base */
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#define RTW_PCI_MMBA 0x14 /* memory mapped base */
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struct rtw_cardbus_softc {
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struct rtw_softc sc_rtw; /* real RTL8180 softc */
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/* CardBus-specific goo. */
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void *sc_ih; /* interrupt handle */
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cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */
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cardbustag_t sc_tag; /* our CardBus tag */
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int sc_csr; /* CSR bits */
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bus_size_t sc_mapsize; /* size of the mapped bus space
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* region
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*/
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int sc_cben; /* CardBus enables */
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int sc_bar_reg; /* which BAR to use */
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pcireg_t sc_bar_val; /* value of the BAR */
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int sc_intrline; /* interrupt line */
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};
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int rtw_cardbus_match(struct device *, struct cfdata *, void *);
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void rtw_cardbus_attach(struct device *, struct device *, void *);
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int rtw_cardbus_detach(struct device *, int);
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CFATTACH_DECL(rtw_cardbus, sizeof(struct rtw_cardbus_softc),
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rtw_cardbus_match, rtw_cardbus_attach, rtw_cardbus_detach, rtw_activate);
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void rtw_cardbus_setup(struct rtw_cardbus_softc *);
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int rtw_cardbus_enable(struct rtw_softc *);
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void rtw_cardbus_disable(struct rtw_softc *);
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void rtw_cardbus_power(struct rtw_softc *, int);
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const struct rtw_cardbus_product *rtw_cardbus_lookup(
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const struct cardbus_attach_args *);
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const struct rtw_cardbus_product {
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u_int32_t rcp_vendor; /* PCI vendor ID */
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u_int32_t rcp_product; /* PCI product ID */
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const char *rcp_product_name;
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} rtw_cardbus_products[] = {
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{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8180,
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"Realtek RTL8180 802.11 MAC/BBP" },
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{ PCI_VENDOR_BELKIN, PCI_PRODUCT_BELKIN_F5D6020V3,
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"Belkin F5D6020v3 802.11b (RTL8180 MAC/BBP)" },
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{ 0, 0, NULL },
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};
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const struct rtw_cardbus_product *
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rtw_cardbus_lookup(ca)
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const struct cardbus_attach_args *ca;
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{
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const struct rtw_cardbus_product *rcp;
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for (rcp = rtw_cardbus_products;
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rcp->rcp_product_name != NULL;
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rcp++) {
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if (PCI_VENDOR(ca->ca_id) == rcp->rcp_vendor &&
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PCI_PRODUCT(ca->ca_id) == rcp->rcp_product)
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return (rcp);
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}
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return (NULL);
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}
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int
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rtw_cardbus_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct cardbus_attach_args *ca = aux;
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if (rtw_cardbus_lookup(ca) != NULL)
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return (1);
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return (0);
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}
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static void
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rtw_cardbus_intr_ack(struct rtw_regs *regs)
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{
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RTW_WRITE(regs, RTW_FER, RTW_FER_INTR);
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}
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static void
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rtw_cardbus_funcregen(struct rtw_regs *regs, int enable)
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{
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u_int32_t reg;
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rtw_config0123_enable(regs, 1);
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reg = RTW_READ(regs, RTW_CONFIG3);
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if (enable) {
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RTW_WRITE(regs, RTW_CONFIG3, reg | RTW_CONFIG3_FUNCREGEN);
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} else {
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RTW_WRITE(regs, RTW_CONFIG3, reg & ~RTW_CONFIG3_FUNCREGEN);
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}
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rtw_config0123_enable(regs, 0);
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}
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void
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rtw_cardbus_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct rtw_cardbus_softc *csc = (void *)self;
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struct rtw_softc *sc = &csc->sc_rtw;
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struct rtw_regs *regs = &sc->sc_regs;
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struct cardbus_attach_args *ca = aux;
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cardbus_devfunc_t ct = ca->ca_ct;
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const struct rtw_cardbus_product *rcp;
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bus_addr_t adr;
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int rev;
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sc->sc_dmat = ca->ca_dmat;
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csc->sc_ct = ct;
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csc->sc_tag = ca->ca_tag;
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rcp = rtw_cardbus_lookup(ca);
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if (rcp == NULL) {
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printf("\n");
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panic("rtw_cardbus_attach: impossible");
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}
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/*
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* Power management hooks.
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*/
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sc->sc_enable = rtw_cardbus_enable;
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sc->sc_disable = rtw_cardbus_disable;
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sc->sc_power = rtw_cardbus_power;
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sc->sc_intr_ack = rtw_cardbus_intr_ack;
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/* Get revision info. */
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rev = PCI_REVISION(ca->ca_class);
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printf(": %s\n", rcp->rcp_product_name);
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RTW_DPRINTF(RTW_DEBUG_ATTACH,
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("%s: pass %d.%d signature %08x\n", sc->sc_dev.dv_xname,
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(rev >> 4) & 0xf, rev & 0xf,
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cardbus_conf_read(ct->ct_cc, ct->ct_cf, csc->sc_tag, 0x80)));
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/*
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* Map the device.
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*/
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csc->sc_csr = CARDBUS_COMMAND_MASTER_ENABLE;
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if (Cardbus_mapreg_map(ct, RTW_PCI_MMBA,
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CARDBUS_MAPREG_TYPE_MEM, 0, ®s->r_bt, ®s->r_bh, &adr,
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&csc->sc_mapsize) == 0) {
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RTW_DPRINTF(RTW_DEBUG_ATTACH,
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("%s: %s mapped %lu bytes mem space\n",
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sc->sc_dev.dv_xname, __func__, (long)csc->sc_mapsize));
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#if rbus
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#else
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(*ct->ct_cf->cardbus_mem_open)(cc, 0, adr, adr+csc->sc_mapsize);
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#endif
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csc->sc_cben = CARDBUS_MEM_ENABLE;
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csc->sc_csr |= CARDBUS_COMMAND_MEM_ENABLE;
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csc->sc_bar_reg = RTW_PCI_MMBA;
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csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_MEM;
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} else if (Cardbus_mapreg_map(ct, RTW_PCI_IOBA,
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CARDBUS_MAPREG_TYPE_IO, 0, ®s->r_bt, ®s->r_bh, &adr,
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&csc->sc_mapsize) == 0) {
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RTW_DPRINTF(RTW_DEBUG_ATTACH,
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("%s: %s mapped %lu bytes I/O space\n",
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sc->sc_dev.dv_xname, __func__, (long)csc->sc_mapsize));
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#if rbus
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#else
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(*ct->ct_cf->cardbus_io_open)(cc, 0, adr, adr+csc->sc_mapsize);
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#endif
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csc->sc_cben = CARDBUS_IO_ENABLE;
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csc->sc_csr |= CARDBUS_COMMAND_IO_ENABLE;
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csc->sc_bar_reg = RTW_PCI_IOBA;
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csc->sc_bar_val = adr | CARDBUS_MAPREG_TYPE_IO;
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} else {
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printf("%s: unable to map device registers\n",
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sc->sc_dev.dv_xname);
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return;
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}
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/*
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* Bring the chip out of powersave mode and initialize the
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* configuration registers.
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*/
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rtw_cardbus_setup(csc);
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/* Remember which interrupt line. */
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csc->sc_intrline = ca->ca_intrline;
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printf("%s: interrupting at %d\n", sc->sc_dev.dv_xname,
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csc->sc_intrline);
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/*
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* Finish off the attach.
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*/
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rtw_attach(sc);
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rtw_cardbus_funcregen(regs, 1);
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RTW_WRITE(regs, RTW_FEMR, RTW_FEMR_INTR);
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RTW_WRITE(regs, RTW_FER, RTW_FER_INTR);
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/*
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* Power down the socket.
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*/
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Cardbus_function_disable(csc->sc_ct);
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}
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int
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rtw_cardbus_detach(self, flags)
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struct device *self;
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int flags;
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{
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struct rtw_cardbus_softc *csc = (void *)self;
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struct rtw_softc *sc = &csc->sc_rtw;
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struct rtw_regs *regs = &sc->sc_regs;
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struct cardbus_devfunc *ct = csc->sc_ct;
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int rv;
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#if defined(DIAGNOSTIC)
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if (ct == NULL)
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panic("%s: data structure lacks", sc->sc_dev.dv_xname);
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#endif
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rv = rtw_detach(sc);
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if (rv)
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return (rv);
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rtw_cardbus_funcregen(regs, 0);
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/*
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* Unhook the interrupt handler.
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*/
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if (csc->sc_ih != NULL)
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cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih);
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/*
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* Release bus space and close window.
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*/
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if (csc->sc_bar_reg != 0)
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Cardbus_mapreg_unmap(ct, csc->sc_bar_reg,
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regs->r_bt, regs->r_bh, csc->sc_mapsize);
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return (0);
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}
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int
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rtw_cardbus_enable(sc)
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struct rtw_softc *sc;
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{
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struct rtw_cardbus_softc *csc = (void *) sc;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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/*
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* Power on the socket.
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*/
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Cardbus_function_enable(ct);
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/*
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* Set up the PCI configuration registers.
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*/
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rtw_cardbus_setup(csc);
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/*
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* Map and establish the interrupt.
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*/
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csc->sc_ih = cardbus_intr_establish(cc, cf, csc->sc_intrline, IPL_NET,
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rtw_intr, sc);
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if (csc->sc_ih == NULL) {
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printf("%s: unable to establish interrupt at %d\n",
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sc->sc_dev.dv_xname, csc->sc_intrline);
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Cardbus_function_disable(csc->sc_ct);
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return (1);
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}
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rtw_cardbus_funcregen(&sc->sc_regs, 1);
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RTW_WRITE(&sc->sc_regs, RTW_FEMR, RTW_FEMR_INTR);
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RTW_WRITE(&sc->sc_regs, RTW_FER, RTW_FER_INTR);
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return (0);
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}
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void
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rtw_cardbus_disable(sc)
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struct rtw_softc *sc;
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{
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struct rtw_cardbus_softc *csc = (void *) sc;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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RTW_WRITE(&sc->sc_regs, RTW_FEMR,
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RTW_READ(&sc->sc_regs, RTW_FEMR) & ~RTW_FEMR_INTR);
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rtw_cardbus_funcregen(&sc->sc_regs, 0);
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/* Unhook the interrupt handler. */
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cardbus_intr_disestablish(cc, cf, csc->sc_ih);
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csc->sc_ih = NULL;
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/* Power down the socket. */
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Cardbus_function_disable(ct);
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}
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void
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rtw_cardbus_power(sc, why)
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struct rtw_softc *sc;
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int why;
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{
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struct rtw_cardbus_softc *csc = (void *) sc;
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RTW_DPRINTF(RTW_DEBUG_ATTACH,
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("%s: rtw_cardbus_power\n", sc->sc_dev.dv_xname));
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if (why == PWR_RESUME) {
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/*
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* Give the PCI configuration registers a kick
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* in the head.
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*/
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#ifdef DIAGNOSTIC
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if ((sc->sc_flags & RTW_F_ENABLED) == 0)
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panic("rtw_cardbus_power");
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#endif
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rtw_cardbus_setup(csc);
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}
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}
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void
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rtw_cardbus_setup(csc)
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struct rtw_cardbus_softc *csc;
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{
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struct rtw_softc *sc = &csc->sc_rtw;
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cardbus_devfunc_t ct = csc->sc_ct;
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cardbus_chipset_tag_t cc = ct->ct_cc;
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cardbus_function_tag_t cf = ct->ct_cf;
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pcireg_t reg;
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int pmreg;
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if (cardbus_get_capability(cc, cf, csc->sc_tag,
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PCI_CAP_PWRMGMT, &pmreg, 0)) {
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reg = cardbus_conf_read(cc, cf, csc->sc_tag, pmreg + 4) & 0x03;
|
|
#if 1 /* XXX Probably not right for CardBus. */
|
|
if (reg == 3) {
|
|
/*
|
|
* The card has lost all configuration data in
|
|
* this state, so punt.
|
|
*/
|
|
printf("%s: unable to wake up from power state D3\n",
|
|
sc->sc_dev.dv_xname);
|
|
return;
|
|
}
|
|
#endif
|
|
if (reg != 0) {
|
|
printf("%s: waking up from power state D%d\n",
|
|
sc->sc_dev.dv_xname, reg);
|
|
cardbus_conf_write(cc, cf, csc->sc_tag,
|
|
pmreg + 4, 0);
|
|
}
|
|
}
|
|
|
|
/* Program the BAR. */
|
|
cardbus_conf_write(cc, cf, csc->sc_tag, csc->sc_bar_reg,
|
|
csc->sc_bar_val);
|
|
|
|
/* Make sure the right access type is on the CardBus bridge. */
|
|
(*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cben);
|
|
(*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
|
|
|
|
/* Enable the appropriate bits in the PCI CSR. */
|
|
reg = cardbus_conf_read(cc, cf, csc->sc_tag,
|
|
CARDBUS_COMMAND_STATUS_REG);
|
|
reg &= ~(CARDBUS_COMMAND_IO_ENABLE|CARDBUS_COMMAND_MEM_ENABLE);
|
|
reg |= csc->sc_csr;
|
|
cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_COMMAND_STATUS_REG,
|
|
reg);
|
|
|
|
/*
|
|
* Make sure the latency timer is set to some reasonable
|
|
* value.
|
|
*/
|
|
reg = cardbus_conf_read(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG);
|
|
if (CARDBUS_LATTIMER(reg) < 0x20) {
|
|
reg &= ~(CARDBUS_LATTIMER_MASK << CARDBUS_LATTIMER_SHIFT);
|
|
reg |= (0x20 << CARDBUS_LATTIMER_SHIFT);
|
|
cardbus_conf_write(cc, cf, csc->sc_tag, CARDBUS_BHLC_REG, reg);
|
|
}
|
|
}
|