if_an_pci.c revision 1.9 
1/*	$NetBSD: if_an_pci.c,v 1.9 2002/10/02 16:51:18 thorpej Exp $	*/
2
3/*
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Atsushi Onoe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the NetBSD
21 *	Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39/*
40 * PCI bus front-end for the Aironet PC4500/PC4800 Wireless LAN Adapter.
41 * Unlike WaveLAN, this adapter attached as PCI device using a PLX 9050
42 * PCI to "dumb bus" bridge chip.
43 */
44
45#include <sys/cdefs.h>
46__KERNEL_RCSID(0, "$NetBSD: if_an_pci.c,v 1.9 2002/10/02 16:51:18 thorpej Exp $");
47
48#include <sys/param.h>
49#include <sys/systm.h>
50#include <sys/mbuf.h>
51#include <sys/malloc.h>
52#include <sys/kernel.h>
53#include <sys/socket.h>
54#include <sys/ioctl.h>
55#include <sys/errno.h>
56#include <sys/device.h>
57#include <sys/callout.h>
58
59#include <machine/endian.h>
60
61#include <net/if.h>
62#include <net/if_dl.h>
63#include <net/if_media.h>
64#include <net/if_ether.h>
65#include <net/if_ieee80211.h>
66
67#include <machine/bus.h>
68#include <machine/intr.h>
69
70#include <dev/ic/anreg.h>
71#include <dev/ic/anvar.h>
72
73#include <dev/pci/pcivar.h>
74#include <dev/pci/pcireg.h>
75#include <dev/pci/pcidevs.h>
76
77#define	AN_PCI_PLX_IOBA		0x14	/* i/o base for PLX chip */
78#define	AN_PCI_IOBA		0x18	/* i/o base */
79
80struct an_pci_softc {
81	struct an_softc sc_an;		/* real "an" softc */
82
83	/* PCI-specific goo. */
84	void	*sc_ih;			/* interrupt handle */
85};
86
87int	an_pci_match __P((struct device *, struct cfdata *, void *));
88void	an_pci_attach __P((struct device *, struct device *, void *));
89
90CFATTACH_DECL(an_pci, sizeof(struct an_pci_softc),
91    an_pci_match, an_pci_attach, NULL, NULL);
92
93const struct an_pci_product {
94	u_int32_t	app_vendor;	/* PCI vendor ID */
95	u_int32_t	app_product;	/* PCI product ID */
96} an_pci_products[] = {
97	{ PCI_VENDOR_AIRONET,		PCI_PRODUCT_AIRONET_PC4xxx },
98	{ PCI_VENDOR_AIRONET,		PCI_PRODUCT_AIRONET_PC4500 },
99	{ PCI_VENDOR_AIRONET,		PCI_PRODUCT_AIRONET_PC4800 },
100	{ PCI_VENDOR_AIRONET,		PCI_PRODUCT_AIRONET_350 },
101	{ 0,				0			   }
102};
103
104int
105an_pci_match(struct device *parent, struct cfdata *match, void *aux)
106{
107	struct pci_attach_args *pa = aux;
108	const struct an_pci_product *app;
109
110	for (app = an_pci_products; app->app_vendor != 0; app++) {
111		if (PCI_VENDOR(pa->pa_id) == app->app_vendor &&
112		    PCI_PRODUCT(pa->pa_id) == app->app_product)
113			return 1;
114	}
115	return 0;
116}
117
118void
119an_pci_attach(struct device *parent, struct device *self, void *aux)
120{
121        struct pci_attach_args *pa = (struct pci_attach_args *)aux;
122	struct an_pci_softc *psc = (struct an_pci_softc *) self;
123	struct an_softc *sc = &psc->sc_an;
124        char devinfo[256];
125	char const *intrstr;
126	pci_intr_handle_t ih;
127	u_int32_t csr;
128
129        pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
130        printf(": %s\n", devinfo);
131
132        /* Map I/O registers */
133        if (pci_mapreg_map(pa, AN_PCI_IOBA, PCI_MAPREG_TYPE_IO, 0,
134	    &sc->an_btag, &sc->an_bhandle, NULL, NULL) != 0) {
135                printf("%s: unable to map registers\n", self->dv_xname);
136                return;
137        }
138
139        /* Enable the device. */
140        csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
141        pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
142                       csr | PCI_COMMAND_MASTER_ENABLE);
143
144	/* Map and establish the interrupt. */
145	if (pci_intr_map(pa, &ih)) {
146        	printf("%s: unable to map interrupt\n", self->dv_xname);
147		return;
148	}
149	intrstr = pci_intr_string(pa->pa_pc, ih);
150	psc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, an_intr, sc);
151	if (psc->sc_ih == NULL) {
152		printf("%s: unable to establish interrupt", self->dv_xname);
153		if (intrstr != NULL)
154			printf(" at %s", intrstr);
155		printf("\n");
156		return;
157	}
158	printf("%s: interrupting at %s\n", self->dv_xname, intrstr);
159	sc->sc_enabled = 1;
160
161	if (an_attach(sc) != 0) {
162		printf("%s: failed to attach controller\n", self->dv_xname);
163		pci_intr_disestablish(pa->pa_pc, psc->sc_ih);
164		bus_space_unmap(sc->an_btag, sc->an_bhandle, AN_IOSIZ);
165	}
166}
167