NetBSD/sys/dev/pci/if_ral_pci.c

192 lines
4.9 KiB
C

/* $NetBSD: if_ral_pci.c,v 1.9 2008/04/29 22:21:45 scw Exp $ */
/* $OpenBSD: if_ral_pci.c,v 1.6 2006/01/09 20:03:43 damien Exp $ */
/*-
* Copyright (c) 2005, 2006
* Damien Bergamini <damien.bergamini@free.fr>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* PCI front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ral_pci.c,v 1.9 2008/04/29 22:21:45 scw Exp $");
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <netinet/in.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_amrr.h>
#include <net80211/ieee80211_rssadapt.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/ic/rt2560var.h>
#include <dev/ic/rt2661var.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
static struct ral_opns {
int (*attach)(void *, int);
int (*detach)(void *);
int (*intr)(void *);
} ral_rt2560_opns = {
rt2560_attach,
rt2560_detach,
rt2560_intr
}, ral_rt2661_opns = {
rt2661_attach,
rt2661_detach,
rt2661_intr
};
struct ral_pci_softc {
union {
struct rt2560_softc sc_rt2560;
struct rt2661_softc sc_rt2661;
} u;
#define sc_sc u.sc_rt2560
/* PCI specific goo */
struct ral_opns *sc_opns;
pci_chipset_tag_t sc_pc;
void *sc_ih;
bus_size_t sc_mapsize;
};
/* Base Address Register */
#define RAL_PCI_BAR0 0x10
int ral_pci_match(struct device *, struct cfdata *, void *);
void ral_pci_attach(struct device *, struct device *, void *);
int ral_pci_detach(struct device *, int);
CFATTACH_DECL(ral_pci, sizeof (struct ral_pci_softc),
ral_pci_match, ral_pci_attach, ral_pci_detach, NULL);
int
ral_pci_match(struct device *parent, struct cfdata *cfdata,
void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK) {
switch (PCI_PRODUCT(pa->pa_id)) {
case PCI_PRODUCT_RALINK_RT2560:
case PCI_PRODUCT_RALINK_RT2561:
case PCI_PRODUCT_RALINK_RT2561S:
case PCI_PRODUCT_RALINK_RT2661:
return 1;
default:
return 0;
}
}
return 0;
}
void
ral_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
struct rt2560_softc *sc = &psc->sc_sc;
struct pci_attach_args *pa = aux;
const char *intrstr;
char devinfo[256];
bus_addr_t base;
pci_intr_handle_t ih;
pcireg_t reg;
int error, revision;
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
revision = PCI_REVISION(pa->pa_class);
aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision);
psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ?
&ral_rt2560_opns : &ral_rt2661_opns;
sc->sc_dmat = pa->pa_dmat;
psc->sc_pc = pa->pa_pc;
/* enable the appropriate bits in the PCI CSR */
reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
/* map control/status registers */
error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base,
&psc->sc_mapsize);
if (error != 0) {
aprint_error(": could not map memory space\n");
return;
}
if (pci_intr_map(pa, &ih) != 0) {
aprint_error(": could not map interrupt\n");
return;
}
intrstr = pci_intr_string(psc->sc_pc, ih);
psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET,
psc->sc_opns->intr, sc);
if (psc->sc_ih == NULL) {
aprint_error(": could not establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
aprint_error("\n");
return;
}
aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr);
(*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id));
}
int
ral_pci_detach(struct device *self, int flags)
{
struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
struct rt2560_softc *sc = &psc->sc_sc;
(*psc->sc_opns->detach)(sc);
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
return 0;
}