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/* $OpenBSD: if_rtw_pci.c,v 1.11 2008/06/26 05:42:17 ray Exp $ */
/* $NetBSD: if_rtw_pci.c,v 1.1 2004/09/26 02:33:36 dyoung Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000, 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center; Charles M. Hannum; and David Young.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* PCI bus front-end for the Realtek RTL8180L 802.11 MAC/BBP chip.
*
* Derived from the ADMtek ADM8211 PCI bus front-end.
*
* Derived from the ``Tulip'' PCI bus front-end.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <machine/endian.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_var.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/rtwreg.h>
#include <dev/ic/sa2400reg.h>
#include <dev/ic/rtwvar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
int rtw_pci_enable(struct rtw_softc *);
void rtw_pci_disable(struct rtw_softc *);
/*
* PCI configuration space registers used by the RTL8180L.
*/
#define RTW_PCI_IOBA 0x10 /* i/o mapped base */
#define RTW_PCI_MMBA 0x14 /* memory mapped base */
struct rtw_pci_softc {
struct rtw_softc psc_rtw; /* real RTL8180L softc */
pci_intr_handle_t psc_ih; /* interrupt handle */
void *psc_intrcookie;
pci_chipset_tag_t psc_pc; /* our PCI chipset */
pcitag_t psc_pcitag; /* our PCI tag */
};
int rtw_pci_match(struct device *, void *, void *);
void rtw_pci_attach(struct device *, struct device *, void *);
struct cfattach rtw_pci_ca = {
sizeof (struct rtw_pci_softc), rtw_pci_match, rtw_pci_attach
};
const struct pci_matchid rtw_pci_products[] = {
{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8180 },
#ifdef RTW_DEBUG
{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8185 },
#endif
{ PCI_VENDOR_BELKIN2, PCI_PRODUCT_BELKIN2_F5D6001 },
{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DWL610 },
};
int
rtw_pci_match(struct device *parent, void *match, void *aux)
{
return (pci_matchbyid((struct pci_attach_args *)aux, rtw_pci_products,
sizeof(rtw_pci_products)/sizeof(rtw_pci_products[0])));
}
int
rtw_pci_enable(struct rtw_softc *sc)
{
struct rtw_pci_softc *psc = (void *)sc;
/* Establish the interrupt. */
psc->psc_intrcookie = pci_intr_establish(psc->psc_pc, psc->psc_ih,
IPL_NET, rtw_intr, sc, sc->sc_dev.dv_xname);
if (psc->psc_intrcookie == NULL) {
printf("%s: unable to establish interrupt\n",
sc->sc_dev.dv_xname);
return (1);
}
return (0);
}
void
rtw_pci_disable(struct rtw_softc *sc)
{
struct rtw_pci_softc *psc = (void *)sc;
/* Unhook the interrupt handler. */
pci_intr_disestablish(psc->psc_pc, psc->psc_intrcookie);
psc->psc_intrcookie = NULL;
}
void
rtw_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct rtw_pci_softc *psc = (void *) self;
struct rtw_softc *sc = &psc->psc_rtw;
struct rtw_regs *regs = &sc->sc_regs;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
const char *intrstr = NULL;
bus_space_tag_t iot, memt;
bus_space_handle_t ioh, memh;
int ioh_valid, memh_valid;
int state;
psc->psc_pc = pa->pa_pc;
psc->psc_pcitag = pa->pa_tag;
/*
* No power management hooks.
* XXX Maybe we should add some!
*/
sc->sc_flags |= RTW_F_ENABLED;
/*
* Get revision info, and set some chip-specific variables.
*/
sc->sc_rev = PCI_REVISION(pa->pa_class);
/*
* Check to see if the device is in power-save mode, and
* being it out if necessary.
*
* XXX This code comes almost verbatim from if_tlp_pci.c. I do
* not understand it. Tulip clears the "sleep mode" bit in the
* CFDA register, first. There is an equivalent (?) register at the
* same place in the ADM8211, but the docs do not assign its bits
* any meanings. -dcy
*/
state = pci_set_powerstate(pc, pa->pa_tag, PCI_PMCSR_STATE_D0);
if (state == PCI_PMCSR_STATE_D3) {
/*
* The card has lost all configuration data in
* this state, so punt.
*/
printf(": unable to wake up from power state D3, "
"reboot required.\n");
return;
}
/*
* Map the device.
*/
ioh_valid = (pci_mapreg_map(pa, RTW_PCI_IOBA,
PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL, 0) == 0);
memh_valid = (pci_mapreg_map(pa, RTW_PCI_MMBA,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&memt, &memh, NULL, NULL, 0) == 0);
if (memh_valid) {
regs->r_bt = memt;
regs->r_bh = memh;
} else if (ioh_valid) {
regs->r_bt = iot;
regs->r_bh = ioh;
} else {
printf(": unable to map device registers\n");
return;
}
sc->sc_dmat = pa->pa_dmat;
/*
* Map and establish our interrupt.
*/
if (pci_intr_map(pa, &psc->psc_ih)) {
printf(": unable to map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, psc->psc_ih);
psc->psc_intrcookie = pci_intr_establish(pc, psc->psc_ih, IPL_NET,
rtw_intr, sc, sc->sc_dev.dv_xname);
if (psc->psc_intrcookie == NULL) {
printf(": unable to establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf(": %s\n", intrstr);
sc->sc_enable = rtw_pci_enable;
sc->sc_disable = rtw_pci_disable;
/*
* Finish off the attach.
*/
rtw_attach(sc);
}
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