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/* $OpenBSD: if_ral_pci.c,v 1.1 2005/02/15 20:51:22 damien Exp $ */
/*-
* Copyright (c) 2005
* 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 RT2500 driver.
*/
#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/timeout.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rssadapt.h>
#include <net80211/ieee80211_radiotap.h>
#include <dev/ic/ralvar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
struct ral_pci_softc {
struct ral_softc sc_sc;
/* PCI specific goo */
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 *, void *, void *);
void ral_pci_attach(struct device *, struct device *, void *);
int ral_pci_detach(struct device *, int);
struct cfattach ral_pci_ca = {
sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach,
ral_pci_detach
};
int
ral_pci_match(struct device *parent, void *match, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK &&
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560)
return 1;
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 ral_softc *sc = &psc->sc_sc;
struct pci_attach_args *pa = aux;
const char *intrstr;
bus_addr_t base;
pci_intr_handle_t ih;
pcireg_t reg;
int error;
sc->sc_dmat = pa->pa_dmat;
psc->sc_pc = pa->pa_pc;
printf("\n");
/* 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, 0);
if (error != 0) {
printf(": could not map memory space\n");
return;
}
if (pci_intr_map(pa, &ih) != 0) {
printf(": 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, ral_intr, sc,
sc->sc_dev.dv_xname);
if (psc->sc_ih == NULL) {
printf(": could not establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf(": %s\n", intrstr);
ral_attach(sc);
}
int
ral_pci_detach(struct device *self, int flags)
{
struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
struct ral_softc *sc = &psc->sc_sc;
ral_detach(sc);
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
return 0;
}
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