Annotation of sys/dev/pci/if_ral_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_ral_pci.c,v 1.8 2006/11/18 20:44:40 grange Exp $ */
! 2:
! 3: /*-
! 4: * Copyright (c) 2005, 2006
! 5: * Damien Bergamini <damien.bergamini@free.fr>
! 6: *
! 7: * Permission to use, copy, modify, and distribute this software for any
! 8: * purpose with or without fee is hereby granted, provided that the above
! 9: * copyright notice and this permission notice appear in all copies.
! 10: *
! 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 18: */
! 19:
! 20: /*
! 21: * PCI front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
! 22: */
! 23:
! 24: #include "bpfilter.h"
! 25:
! 26: #include <sys/param.h>
! 27: #include <sys/sockio.h>
! 28: #include <sys/mbuf.h>
! 29: #include <sys/kernel.h>
! 30: #include <sys/socket.h>
! 31: #include <sys/systm.h>
! 32: #include <sys/malloc.h>
! 33: #include <sys/timeout.h>
! 34: #include <sys/device.h>
! 35:
! 36: #include <machine/bus.h>
! 37: #include <machine/intr.h>
! 38:
! 39: #include <net/if.h>
! 40: #include <net/if_dl.h>
! 41: #include <net/if_media.h>
! 42:
! 43: #include <netinet/in.h>
! 44: #include <netinet/if_ether.h>
! 45:
! 46: #include <net80211/ieee80211_var.h>
! 47: #include <net80211/ieee80211_amrr.h>
! 48: #include <net80211/ieee80211_radiotap.h>
! 49:
! 50: #include <dev/ic/rt2560var.h>
! 51: #include <dev/ic/rt2661var.h>
! 52:
! 53: #include <dev/pci/pcireg.h>
! 54: #include <dev/pci/pcivar.h>
! 55: #include <dev/pci/pcidevs.h>
! 56:
! 57: static struct ral_opns {
! 58: int (*attach)(void *, int);
! 59: int (*detach)(void *);
! 60: int (*intr)(void *);
! 61:
! 62: } ral_rt2560_opns = {
! 63: rt2560_attach,
! 64: rt2560_detach,
! 65: rt2560_intr
! 66:
! 67: }, ral_rt2661_opns = {
! 68: rt2661_attach,
! 69: rt2661_detach,
! 70: rt2661_intr
! 71: };
! 72:
! 73: struct ral_pci_softc {
! 74: union {
! 75: struct rt2560_softc sc_rt2560;
! 76: struct rt2661_softc sc_rt2661;
! 77: } u;
! 78: #define sc_sc u.sc_rt2560
! 79:
! 80: /* PCI specific goo */
! 81: struct ral_opns *sc_opns;
! 82: pci_chipset_tag_t sc_pc;
! 83: void *sc_ih;
! 84: bus_size_t sc_mapsize;
! 85: };
! 86:
! 87: /* Base Address Register */
! 88: #define RAL_PCI_BAR0 0x10
! 89:
! 90: int ral_pci_match(struct device *, void *, void *);
! 91: void ral_pci_attach(struct device *, struct device *, void *);
! 92: int ral_pci_detach(struct device *, int);
! 93:
! 94: struct cfattach ral_pci_ca = {
! 95: sizeof (struct ral_pci_softc), ral_pci_match, ral_pci_attach,
! 96: ral_pci_detach
! 97: };
! 98:
! 99: const struct pci_matchid ral_pci_devices[] = {
! 100: { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560 },
! 101: { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561 },
! 102: { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S },
! 103: { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661 }
! 104: };
! 105:
! 106: int
! 107: ral_pci_match(struct device *parent, void *match, void *aux)
! 108: {
! 109: return (pci_matchbyid((struct pci_attach_args *)aux, ral_pci_devices,
! 110: sizeof (ral_pci_devices) / sizeof (ral_pci_devices[0])));
! 111: }
! 112:
! 113: void
! 114: ral_pci_attach(struct device *parent, struct device *self, void *aux)
! 115: {
! 116: struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
! 117: struct rt2560_softc *sc = &psc->sc_sc;
! 118: struct pci_attach_args *pa = aux;
! 119: const char *intrstr;
! 120: pci_intr_handle_t ih;
! 121: int error;
! 122:
! 123: psc->sc_opns = (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_RALINK_RT2560) ?
! 124: &ral_rt2560_opns : &ral_rt2661_opns;
! 125:
! 126: sc->sc_dmat = pa->pa_dmat;
! 127: psc->sc_pc = pa->pa_pc;
! 128:
! 129: /* map control/status registers */
! 130: error = pci_mapreg_map(pa, RAL_PCI_BAR0, PCI_MAPREG_TYPE_MEM |
! 131: PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_st, &sc->sc_sh, NULL,
! 132: &psc->sc_mapsize, 0);
! 133: if (error != 0) {
! 134: printf(": could not map memory space\n");
! 135: return;
! 136: }
! 137:
! 138: if (pci_intr_map(pa, &ih) != 0) {
! 139: printf(": could not map interrupt\n");
! 140: return;
! 141: }
! 142:
! 143: intrstr = pci_intr_string(psc->sc_pc, ih);
! 144: psc->sc_ih = pci_intr_establish(psc->sc_pc, ih, IPL_NET,
! 145: psc->sc_opns->intr, sc, sc->sc_dev.dv_xname);
! 146: if (psc->sc_ih == NULL) {
! 147: printf(": could not establish interrupt");
! 148: if (intrstr != NULL)
! 149: printf(" at %s", intrstr);
! 150: printf("\n");
! 151: return;
! 152: }
! 153: printf(": %s", intrstr);
! 154:
! 155: (*psc->sc_opns->attach)(sc, PCI_PRODUCT(pa->pa_id));
! 156: }
! 157:
! 158: int
! 159: ral_pci_detach(struct device *self, int flags)
! 160: {
! 161: struct ral_pci_softc *psc = (struct ral_pci_softc *)self;
! 162: struct rt2560_softc *sc = &psc->sc_sc;
! 163:
! 164: (*psc->sc_opns->detach)(sc);
! 165: pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
! 166:
! 167: return 0;
! 168: }
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