Annotation of sys/dev/pci/if_an_pci.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: if_an_pci.c,v 1.16 2006/03/10 00:27:56 jsg Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1997, 1998, 1999
! 5: * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by Bill Paul.
! 18: * 4. Neither the name of the author nor the names of any co-contributors
! 19: * may be used to endorse or promote products derived from this software
! 20: * without specific prior written permission.
! 21: *
! 22: * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
! 23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 25: * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
! 26: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 27: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 28: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 29: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 30: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 31: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
! 32: * THE POSSIBILITY OF SUCH DAMAGE.
! 33: *
! 34: * $FreeBSD: src/sys/dev/an/if_an_pci.c,v 1.1 2000/01/14 20:40:56 wpaul Exp $
! 35: */
! 36:
! 37: /*
! 38: * This is a PCI shim for the Aironet PC4500/4800 wireless network
! 39: * driver. Aironet makes PCMCIA, ISA and PCI versions of these devices,
! 40: * which all have basically the same interface. The ISA and PCI cards
! 41: * are actually bridge adapters with PCMCIA cards inserted into them,
! 42: * however they appear as normal PCI or ISA devices to the host.
! 43: *
! 44: * All we do here is handle the PCI match and attach and set up an
! 45: * interrupt handler entry point. The PCI version of the card uses
! 46: * a PLX 9050 PCI to "dumb bus" bridge chip, which provides us with
! 47: * multiple PCI address space mappings. The primary mapping at PCI
! 48: * register 0x14 is for the PLX chip itself, *NOT* the Aironet card.
! 49: * The I/O address of the Aironet is actually at register 0x18, which
! 50: * is the local bus mapping register for bus space 0. There are also
! 51: * registers for additional register spaces at registers 0x1C and
! 52: * 0x20, but these are unused in the Aironet devices. To find out
! 53: * more, you need a datasheet for the 9050 from PLX, but you have
! 54: * to go through their sales office to get it. Bleh.
! 55: */
! 56:
! 57: #include <sys/param.h>
! 58: #include <sys/systm.h>
! 59: #include <sys/device.h>
! 60: #include <sys/timeout.h>
! 61: #include <sys/socket.h>
! 62: #include <sys/tree.h>
! 63:
! 64: #include <net/if.h>
! 65: #include <net/if_dl.h>
! 66: #include <net/if_media.h>
! 67:
! 68: #include <netinet/in.h>
! 69: #include <netinet/if_ether.h>
! 70:
! 71: #include <net80211/ieee80211_radiotap.h>
! 72: #include <net80211/ieee80211_var.h>
! 73:
! 74: #include <machine/bus.h>
! 75: #include <machine/intr.h>
! 76:
! 77: #include <dev/pci/pcireg.h>
! 78: #include <dev/pci/pcivar.h>
! 79: #include <dev/pci/pcidevs.h>
! 80:
! 81: #include <dev/ic/anreg.h>
! 82: #include <dev/ic/anvar.h>
! 83:
! 84: #define AN_PCI_PLX_LOIO 0x14 /* PLX chip iobase */
! 85: #define AN_PCI_LOIO 0x18 /* Aironet iobase */
! 86:
! 87: int an_pci_match(struct device *, void *, void *);
! 88: void an_pci_attach(struct device *, struct device *, void *);
! 89:
! 90: struct cfattach an_pci_ca = {
! 91: sizeof (struct an_softc), an_pci_match, an_pci_attach
! 92: };
! 93:
! 94: const struct pci_matchid an_pci_devices[] = {
! 95: { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PCI352 },
! 96: { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4500 },
! 97: { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800 },
! 98: { PCI_VENDOR_AIRONET, PCI_PRODUCT_AIRONET_PC4800_1 },
! 99: };
! 100:
! 101: int
! 102: an_pci_match(struct device *parent, void *match, void *aux)
! 103: {
! 104: return (pci_matchbyid((struct pci_attach_args *)aux, an_pci_devices,
! 105: sizeof(an_pci_devices)/sizeof(an_pci_devices[0])));
! 106: }
! 107:
! 108: void
! 109: an_pci_attach(struct device *parent, struct device *self, void *aux)
! 110: {
! 111: struct an_softc *sc = (struct an_softc *)self;
! 112: struct pci_attach_args *pa = aux;
! 113: pci_intr_handle_t ih;
! 114: bus_space_handle_t ioh;
! 115: bus_space_tag_t iot = pa->pa_iot;
! 116: pci_chipset_tag_t pc = pa->pa_pc;
! 117: const char *intrstr;
! 118:
! 119: /* Map the I/O ports. */
! 120: if (pci_mapreg_map(pa, AN_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
! 121: &iot, &ioh, NULL, NULL, 0) != 0) {
! 122: printf(": can't map I/O space\n");
! 123: return;
! 124: }
! 125: sc->sc_iot = iot;
! 126: sc->sc_ioh = ioh;
! 127:
! 128: /* Map and establish the interrupt. */
! 129: if (pci_intr_map(pa, &ih)) {
! 130: printf("\n%s: couldn't map interrupt\n", sc->sc_dev.dv_xname);
! 131: return;
! 132: }
! 133: intrstr = pci_intr_string(pc, ih);
! 134: sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, an_intr, sc,
! 135: sc->sc_dev.dv_xname);
! 136: if (sc->sc_ih == NULL) {
! 137: printf("\n%s: couldn't establish interrupt",
! 138: sc->sc_dev.dv_xname);
! 139: if (intrstr != NULL)
! 140: printf(" at %s", intrstr);
! 141: printf("\n");
! 142: return;
! 143: }
! 144: printf(": %s", intrstr);
! 145:
! 146: sc->sc_enabled = 1;
! 147:
! 148: an_attach(sc);
! 149: }
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