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/* $OpenBSD: if_ath_pci.c,v 1.1 2004/11/02 02:45:37 reyk Exp $ */
/* $NetBSD: if_ath_pci.c,v 1.7 2004/06/30 05:58:17 mycroft Exp $ */
/*-
* Copyright (c) 2002-2004 Sam Leffler, Errno Consulting
* All rights reserved.
*
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
/*
* PCI/Cardbus front-end for the Atheros Wireless LAN controller driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_llc.h>
#include <net/if_arp.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net80211/ieee80211_compat.h>
#include <net80211/ieee80211_var.h>
#include <dev/ic/athvar.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <sys/device.h>
/*
* PCI glue.
*/
struct ath_pci_softc {
struct ath_softc sc_sc;
#ifdef __FreeBSD__
struct resource *sc_sr; /* memory resource */
struct resource *sc_irq; /* irq resource */
#else
pci_chipset_tag_t sc_pc;
#endif
void *sc_ih; /* intererupt handler */
u_int8_t sc_saved_intline;
u_int8_t sc_saved_cachelinesz;
u_int8_t sc_saved_lattimer;
};
#define BS_BAR 0x10
int ath_pci_match(struct device *, void *, void *);
void ath_pci_attach(struct device *, struct device *, void *);
void ath_pci_shutdown(void *);
int ath_pci_detach(struct device *, int);
u_int16_t ath_product(pcireg_t);
struct cfattach ath_pci_ca = {
sizeof (struct ath_softc),
ath_pci_match,
ath_pci_attach,
ath_pci_detach
};
struct cfdriver ath_cd = {
0, "ath", DV_IFNET
};
/*
* translate some product code. it is a workaround until HAL gets updated.
*/
u_int16_t
ath_product(pcireg_t pa_id)
{
u_int16_t prodid;
prodid = PCI_PRODUCT(pa_id);
switch (prodid) {
case 0x1014: /* IBM 31P9702 minipci a/b/g card */
prodid = PCI_PRODUCT_ATHEROS_AR5212;
break;
default:
break;
}
return prodid;
}
int
ath_pci_match(struct device *parent, void *match, void *aux)
{
const char* devname;
struct pci_attach_args *pa = aux;
pci_vendor_id_t vendor;
vendor = PCI_VENDOR(pa->pa_id);
/* XXX HACK until HAL is updated. */
if (vendor == 0x128c)
vendor = PCI_VENDOR_ATHEROS;
devname = ath_hal_probe(vendor, ath_product(pa->pa_id));
if (devname)
return 1;
return 0;
}
void
ath_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
struct ath_softc *sc = &psc->sc_sc;
u_int32_t res;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
bus_space_tag_t iot;
bus_space_handle_t ioh;
pci_intr_handle_t ih;
void *hook;
const char *intrstr = NULL;
psc->sc_pc = pc;
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE);
res = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
if ((res & PCI_COMMAND_MEM_ENABLE) == 0) {
printf(": couldn't enable memory mapping\n");
goto bad;
}
if ((res & PCI_COMMAND_MASTER_ENABLE) == 0) {
printf(": couldn't enable bus mastering\n");
goto bad;
}
/*
* Setup memory-mapping of PCI registers.
*/
if (pci_mapreg_map(pa, BS_BAR, PCI_MAPREG_TYPE_MEM, 0, &iot, &ioh,
NULL, NULL, 0)) {
printf(": cannot map register space\n");
goto bad;
}
sc->sc_st = iot;
sc->sc_sh = ioh;
sc->sc_invalid = 1;
/*
* Arrange interrupt line.
*/
if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
goto bad1;
}
intrstr = pci_intr_string(pc, ih);
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ath_intr, sc,
sc->sc_dev.dv_xname);
if (psc->sc_ih == NULL) {
printf(": couldn't map interrupt\n");
goto bad2;
}
printf(": %s\n", intrstr);
sc->sc_dmat = pa->pa_dmat;
hook = shutdownhook_establish(ath_pci_shutdown, psc);
if (hook == NULL) {
printf(": couldn't make shutdown hook\n");
goto bad3;
}
if (ath_attach(ath_product(pa->pa_id), sc) == 0)
return;
shutdownhook_disestablish(hook);
bad3: pci_intr_disestablish(pc, psc->sc_ih);
bad2: /* XXX */
bad1: /* XXX */
bad:
return;
}
int
ath_pci_detach(struct device *self, int flags)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
ath_detach(&psc->sc_sc);
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
return (0);
}
void
ath_pci_shutdown(void *self)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
ath_shutdown(&psc->sc_sc);
}
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