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.
302 lines
8.5 KiB
C
302 lines
8.5 KiB
C
/* $NetBSD: if_rtw_pci.c,v 1.3 2005/06/22 06:16:02 dyoung Exp $ */
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/*-
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* Copyright (c) 1998, 1999, 2000, 2002 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; Charles M. Hannum; and 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. 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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* PCI bus front-end for the Realtek RTL8180 802.11 MAC/BBP chip.
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*
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* Derived from the ADMtek ADM8211 PCI bus front-end.
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*
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* Derived from the ``Tulip'' PCI bus front-end.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_rtw_pci.c,v 1.3 2005/06/22 06:16:02 dyoung Exp $");
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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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#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/sa2400reg.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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/*
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* PCI configuration space registers used by the ADM8211.
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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_pci_softc {
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struct rtw_softc psc_rtw; /* real ADM8211 softc */
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pci_intr_handle_t psc_ih; /* interrupt handle */
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void *psc_intrcookie;
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pci_chipset_tag_t psc_pc; /* our PCI chipset */
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pcitag_t psc_pcitag; /* our PCI tag */
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};
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static int rtw_pci_match(struct device *, struct cfdata *, void *);
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static void rtw_pci_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(rtw_pci, sizeof(struct rtw_pci_softc),
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rtw_pci_match, rtw_pci_attach, NULL, NULL);
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static const struct rtw_pci_product {
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u_int32_t app_vendor; /* PCI vendor ID */
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u_int32_t app_product; /* PCI product ID */
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const char *app_product_name;
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} rtw_pci_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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{ 0, 0, NULL },
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};
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static const struct rtw_pci_product *
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rtw_pci_lookup(const struct pci_attach_args *pa)
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{
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const struct rtw_pci_product *app;
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for (app = rtw_pci_products;
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app->app_product_name != NULL;
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app++) {
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if (PCI_VENDOR(pa->pa_id) == app->app_vendor &&
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PCI_PRODUCT(pa->pa_id) == app->app_product)
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return (app);
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}
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return (NULL);
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}
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static int
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rtw_pci_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct pci_attach_args *pa = aux;
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if (rtw_pci_lookup(pa) != NULL)
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return (1);
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return (0);
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}
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static int
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rtw_pci_enable(struct rtw_softc *sc)
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{
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struct rtw_pci_softc *psc = (void *)sc;
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/* Establish the interrupt. */
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psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih,
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IPL_NET, rtw_intr, sc);
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if (psc->psc_intrcookie == NULL) {
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printf("%s: unable to establish interrupt\n",
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sc->sc_dev.dv_xname);
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return (1);
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}
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return (0);
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}
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static void
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rtw_pci_disable(struct rtw_softc *sc)
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{
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struct rtw_pci_softc *psc = (void *)sc;
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/* Unhook the interrupt handler. */
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pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie);
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psc->psc_intrcookie = NULL;
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}
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static void
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rtw_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct rtw_pci_softc *psc = (void *) self;
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struct rtw_softc *sc = &psc->psc_rtw;
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struct rtw_regs *regs = &sc->sc_regs;
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struct pci_attach_args *pa = aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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const char *intrstr = NULL;
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bus_space_tag_t iot, memt;
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bus_space_handle_t ioh, memh;
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int ioh_valid, memh_valid;
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const struct rtw_pci_product *app;
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pcireg_t reg;
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int pmreg;
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psc->psc_pc = pa->pa_pc;
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psc->psc_pcitag = pa->pa_tag;
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app = rtw_pci_lookup(pa);
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if (app == NULL) {
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printf("\n");
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panic("rtw_pci_attach: impossible");
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}
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/*
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* No power management hooks.
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* XXX Maybe we should add some!
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*/
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sc->sc_flags |= RTW_F_ENABLED;
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/*
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* Get revision info, and set some chip-specific variables.
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*/
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sc->sc_rev = PCI_REVISION(pa->pa_class);
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printf(": %s, revision %d.%d\n", app->app_product_name,
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(sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
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/*
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* Check to see if the device is in power-save mode, and
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* being it out if necessary.
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*
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* XXX This code comes almost verbatim from if_tlp_pci.c. I do
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* not understand it. Tulip clears the "sleep mode" bit in the
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* CFDA register, first. There is an equivalent (?) register at the
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* same place in the ADM8211, but the docs do not assign its bits
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* any meanings. -dcy
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*/
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if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
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reg = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR);
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switch (reg & PCI_PMCSR_STATE_MASK) {
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case PCI_PMCSR_STATE_D1:
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case PCI_PMCSR_STATE_D2:
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printf(": waking up from power state D%d\n%s",
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reg & PCI_PMCSR_STATE_MASK, sc->sc_dev.dv_xname);
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pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
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(reg & ~PCI_PMCSR_STATE_MASK) |
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PCI_PMCSR_STATE_D0);
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break;
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case PCI_PMCSR_STATE_D3:
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/*
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* The card has lost all configuration data in
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* this state, so punt.
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*/
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printf(": unable to wake up from power state D3, "
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"reboot required.\n");
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pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
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(reg & ~PCI_PMCSR_STATE_MASK) |
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PCI_PMCSR_STATE_D0);
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return;
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}
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}
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/*
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* Map the device.
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*/
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ioh_valid = (pci_mapreg_map(pa, RTW_PCI_IOBA,
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PCI_MAPREG_TYPE_IO, 0,
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&iot, &ioh, NULL, NULL) == 0);
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memh_valid = (pci_mapreg_map(pa, RTW_PCI_MMBA,
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PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
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&memt, &memh, NULL, NULL) == 0);
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if (memh_valid) {
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regs->r_bt = memt;
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regs->r_bh = memh;
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} else if (ioh_valid) {
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regs->r_bt = iot;
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regs->r_bh = ioh;
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} else {
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printf(": unable to map device registers\n");
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return;
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}
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sc->sc_dmat = pa->pa_dmat;
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/*
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* Make sure bus mastering is enabled.
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*/
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pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
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PCI_COMMAND_MASTER_ENABLE);
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/*
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* Map and establish our interrupt.
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*/
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if (pci_intr_map(pa, &psc->psc_ih)) {
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printf("%s: unable to map interrupt\n",
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sc->sc_dev.dv_xname);
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return;
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}
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intrstr = pci_intr_string(pc, psc->psc_ih);
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psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET,
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rtw_intr, sc);
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if (psc->psc_intrcookie == NULL) {
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printf("%s: unable to establish interrupt",
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sc->sc_dev.dv_xname);
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if (intrstr != NULL)
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printf(" at %s", intrstr);
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printf("\n");
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return;
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}
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printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
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sc->sc_enable = rtw_pci_enable;
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sc->sc_disable = rtw_pci_disable;
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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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}
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