149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
/* $NetBSD: if_ral_pci.c,v 1.3 2005/12/11 12:22:49 christos Exp $ */
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/* $OpenBSD: if_ral_pci.c,v 1.4 2005/02/22 10:41:30 damien Exp $ */
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/*-
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* Copyright (c) 2005
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* PCI front-end for the Ralink RT2500 driver.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_ral_pci.c,v 1.3 2005/12/11 12:22:49 christos Exp $");
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/sockio.h>
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#include <sys/mbuf.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <machine/intr.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_ether.h>
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#include <net/if_media.h>
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#include <netinet/in.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rssadapt.h>
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#include <net80211/ieee80211_radiotap.h>
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#include <dev/ic/ralvar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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struct ral_pci_softc {
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struct ral_softc sc_sc;
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/* PCI specific goo */
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pci_chipset_tag_t sc_pc;
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void *sc_ih;
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bus_size_t sc_mapsize;
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};
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/* Base Address Register */
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#define RAL_PCI_BAR0 0x10
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int ral_pci_match(struct device *, struct cfdata *, void *);
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void ral_pci_attach(struct device *, struct device *, void *);
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int ral_pci_detach(struct device *, int);
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CFATTACH_DECL(ral_pci, sizeof (struct ral_pci_softc),
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ral_pci_match, ral_pci_attach, ral_pci_detach, NULL);
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int
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ral_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 (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_RALINK &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560)
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return 1;
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return 0;
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}
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void
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ral_pci_attach(struct device *parent, struct device *self, void *aux)
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{
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struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
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struct ral_softc *sc = &psc->sc_sc;
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struct pci_attach_args *pa = aux;
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const char *intrstr;
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bus_addr_t base;
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pci_intr_handle_t ih;
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pcireg_t reg;
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int error;
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sc->sc_dmat = pa->pa_dmat;
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psc->sc_pc = pa->pa_pc;
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/* enable the appropriate bits in the PCI CSR */
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reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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reg |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_MEM_ENABLE;
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pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, reg);
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/* map control/status registers */
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error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
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PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, &base,
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&psc->sc_mapsize);
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if (error != 0) {
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printf(": could not map memory space\n");
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return;
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}
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if (pci_intr_map(pa, &ih) != 0) {
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printf(": could not map interrupt\n");
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return;
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}
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intrstr = pci_intr_string(psc->sc_pc, ih);
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psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET, ral_intr, sc);
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if (psc->sc_ih == NULL) {
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printf(": could not establish interrupt");
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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\n", intrstr);
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ral_attach(sc);
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}
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int
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ral_pci_detach(struct device *self, int flags)
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{
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struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
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struct ral_softc *sc = &psc->sc_sc;
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ral_detach(sc);
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pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
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return 0;
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}
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