if_rl_pci.c revision 1.13 
1/*	$OpenBSD: if_rl_pci.c,v 1.13 2006/05/16 02:32:39 brad Exp $ */
2
3/*
4 * Copyright (c) 1997, 1998
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
35#include "bpfilter.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/sockio.h>
40#include <sys/mbuf.h>
41#include <sys/malloc.h>
42#include <sys/kernel.h>
43#include <sys/socket.h>
44#include <sys/device.h>
45#include <sys/timeout.h>
46
47#include <net/if.h>
48#include <net/if_dl.h>
49#include <net/if_types.h>
50
51#ifdef INET
52#include <netinet/in.h>
53#include <netinet/in_systm.h>
54#include <netinet/in_var.h>
55#include <netinet/ip.h>
56#include <netinet/if_ether.h>
57#endif
58
59#include <net/if_media.h>
60
61#if NBPFILTER > 0
62#include <net/bpf.h>
63#endif
64
65#include <machine/bus.h>
66
67#include <dev/mii/mii.h>
68#include <dev/mii/miivar.h>
69#include <dev/pci/pcireg.h>
70#include <dev/pci/pcivar.h>
71#include <dev/pci/pcidevs.h>
72
73/*
74 * Default to using PIO access for this driver. On SMP systems,
75 * there appear to be problems with memory mapped mode: it looks like
76 * doing too many memory mapped access back to back in rapid succession
77 * can hang the bus. I'm inclined to blame this on crummy design/construction
78 * on the part of RealTek. Memory mapped mode does appear to work on
79 * uniprocessor systems though.
80 */
81#define RL_USEIOSPACE
82
83#include <dev/ic/rtl81x9reg.h>
84
85int rl_pci_match(struct device *, void *, void *);
86void rl_pci_attach(struct device *, struct device *, void *);
87
88struct cfattach rl_pci_ca = {
89	sizeof(struct rl_softc), rl_pci_match, rl_pci_attach,
90};
91
92const struct pci_matchid rl_pci_devices[] = {
93	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_5030 },
94	{ PCI_VENDOR_ADDTRON, PCI_PRODUCT_ADDTRON_8139 },
95	{ PCI_VENDOR_DELTA, PCI_PRODUCT_DELTA_8139 },
96	{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_530TXPLUS },
97	{ PCI_VENDOR_NORTEL, PCI_PRODUCT_NORTEL_BS21 },
98	{ PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8129 },
99	{ PCI_VENDOR_TTTECH, PCI_PRODUCT_TTTECH_MC322 }
100};
101
102int
103rl_pci_match(parent, match, aux)
104	struct device *parent;
105	void *match;
106	void *aux;
107{
108	struct pci_attach_args *pa = aux;
109
110	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK &&
111	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139 &&
112	    PCI_REVISION(pa->pa_class) == 0x10)
113		return (1);
114
115	return (pci_matchbyid((struct pci_attach_args *)aux, rl_pci_devices,
116	    sizeof(rl_pci_devices)/sizeof(rl_pci_devices[0])));
117}
118
119void
120rl_pci_attach(parent, self, aux)
121	struct device *parent, *self;
122	void *aux;
123{
124	struct rl_softc *sc = (struct rl_softc *)self;
125	struct pci_attach_args *pa = aux;
126	pci_chipset_tag_t pc = pa->pa_pc;
127	pci_intr_handle_t ih;
128	const char *intrstr = NULL;
129	bus_size_t size;
130
131	/*
132	 * Map control/status registers.
133	 */
134
135#ifdef RL_USEIOSPACE
136	if (pci_mapreg_map(pa, RL_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0,
137	    &sc->rl_btag, &sc->rl_bhandle, NULL, &size, 0)) {
138		printf(": can't map i/o space\n");
139		return;
140	}
141#else
142	if (pci_mapreg_map(pa, RL_PCI_LOMEM, PCI_MAPREG_TYPE_MEM, 0,
143	    &sc->rl_btag, &sc->rl_bhandle, NULL, &size, 0)){
144		printf(": can't map mem space\n");
145		return;
146	}
147#endif
148
149	/*
150	 * Allocate our interrupt.
151	 */
152	if (pci_intr_map(pa, &ih)) {
153		printf(": couldn't map interrupt\n");
154		bus_space_unmap(sc->rl_btag, sc->rl_bhandle, size);
155		return;
156	}
157
158	intrstr = pci_intr_string(pc, ih);
159	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rl_intr, sc,
160	    self->dv_xname);
161	if (sc->sc_ih == NULL) {
162		printf(": couldn't establish interrupt");
163		if (intrstr != NULL)
164			printf(" at %s", intrstr);
165		printf("\n");
166		bus_space_unmap(sc->rl_btag, sc->rl_bhandle, size);
167		return;
168	}
169	printf(": %s", intrstr);
170
171	sc->sc_dmat = pa->pa_dmat;
172
173	rl_attach(sc);
174}
175