1/*	$NetBSD: if_ne_pci.c,v 1.35 2011/05/17 17:34:54 dyoung Exp $	*/
2
3/*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__KERNEL_RCSID(0, "$NetBSD: if_ne_pci.c,v 1.35 2011/05/17 17:34:54 dyoung Exp $");
35
36#include "opt_ipkdb.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/syslog.h>
42#include <sys/socket.h>
43#include <sys/device.h>
44
45#include <net/if.h>
46#include <net/if_ether.h>
47#include <net/if_media.h>
48
49#include <sys/bus.h>
50#include <sys/intr.h>
51
52#ifdef IPKDB_NE_PCI
53#include <ipkdb/ipkdb.h>
54#endif
55
56#include <dev/pci/pcireg.h>
57#include <dev/pci/pcivar.h>
58#include <dev/pci/pcidevs.h>
59
60#include <dev/ic/dp8390reg.h>
61#include <dev/ic/dp8390var.h>
62
63#include <dev/ic/ne2000reg.h>
64#include <dev/ic/ne2000var.h>
65
66#include <dev/ic/rtl80x9reg.h>
67#include <dev/ic/rtl80x9var.h>
68
69struct ne_pci_softc {
70	struct ne2000_softc sc_ne2000;		/* real "ne2000" softc */
71
72	/* PCI-specific goo */
73	void *sc_ih;				/* interrupt handle */
74};
75
76static int	ne_pci_match(device_t, cfdata_t, void *);
77static void	ne_pci_attach(device_t, device_t, void *);
78
79CFATTACH_DECL_NEW(ne_pci, sizeof(struct ne_pci_softc),
80    ne_pci_match, ne_pci_attach, NULL, NULL);
81
82#ifdef IPKDB_NE_PCI
83static struct ne_pci_softc ipkdb_softc;
84static pci_chipset_tag_t ipkdb_pc;
85static pcitag_t ipkdb_tag;
86static struct ipkdb_if *ne_kip;
87
88int ne_pci_ipkdb_attach(struct ipkdb_if *, bus_space_tag_t,       /* XXX */
89			pci_chipset_tag_t, int, int);
90
91static int ne_pci_isipkdb(pci_chipset_tag_t, pcitag_t);
92#endif
93
94static const struct ne_pci_product {
95	pci_vendor_id_t npp_vendor;
96	pci_product_id_t npp_product;
97	int (*npp_mediachange)(struct dp8390_softc *);
98	void (*npp_mediastatus)(struct dp8390_softc *, struct ifmediareq *);
99	void (*npp_init_card)(struct dp8390_softc *);
100	void (*npp_media_init)(struct dp8390_softc *);
101	const char *npp_name;
102} ne_pci_products[] = {
103	{ PCI_VENDOR_REALTEK,		PCI_PRODUCT_REALTEK_RT8029,
104	  rtl80x9_mediachange,		rtl80x9_mediastatus,
105	  rtl80x9_init_card,		rtl80x9_media_init,
106	  "Realtek 8029" },
107
108	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F,
109	  NULL,				NULL,
110	  NULL,				NULL,
111	  "Winbond 89C940F" },
112
113	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C940F_1,
114	  NULL,				NULL,
115	  NULL,				NULL,
116	  "Winbond 89C940F" },
117
118	{ PCI_VENDOR_VIATECH,		PCI_PRODUCT_VIATECH_VT86C926,
119	  NULL,				NULL,
120	  NULL,				NULL,
121	  "VIA Technologies VT86C926" },
122
123	{ PCI_VENDOR_SURECOM,		PCI_PRODUCT_SURECOM_NE34,
124	  NULL,				NULL,
125	  NULL,				NULL,
126	  "Surecom NE-34" },
127
128	{ PCI_VENDOR_NETVIN,		PCI_PRODUCT_NETVIN_5000,
129	  NULL,				NULL,
130	  NULL,				NULL,
131	  "NetVin 5000" },
132
133	/* XXX The following entries need sanity checking in pcidevs */
134	{ PCI_VENDOR_COMPEX,		PCI_PRODUCT_COMPEX_NE2KETHER,
135	  NULL,				NULL,
136	  NULL,				NULL,
137	  "Compex" },
138
139	{ PCI_VENDOR_PROLAN,		PCI_PRODUCT_PROLAN_NE2KETHER,
140	  NULL,				NULL,
141	  NULL,				NULL,
142	  "ProLAN" },
143
144	{ PCI_VENDOR_KTI,		PCI_PRODUCT_KTI_NE2KETHER,
145	  NULL,				NULL,
146	  NULL,				NULL,
147	  "KTI" },
148
149	{ 0,				0,
150	  NULL,				NULL,
151	  NULL,				NULL,
152	  NULL },
153};
154
155static const struct ne_pci_product *
156ne_pci_lookup(const struct pci_attach_args *pa)
157{
158	const struct ne_pci_product *npp;
159
160	for (npp = ne_pci_products; npp->npp_name != NULL; npp++) {
161		if (PCI_VENDOR(pa->pa_id) == npp->npp_vendor &&
162		    PCI_PRODUCT(pa->pa_id) == npp->npp_product)
163			return (npp);
164	}
165	return (NULL);
166}
167
168/*
169 * PCI constants.
170 * XXX These should be in a common file!
171 */
172#define PCI_CBIO PCI_BAR(0)		/* Configuration Base IO Address */
173
174static int
175ne_pci_match(device_t parent, cfdata_t match, void *aux)
176{
177	struct pci_attach_args *pa = aux;
178
179	if (ne_pci_lookup(pa) != NULL)
180		return (1);
181
182	return (0);
183}
184
185static void
186ne_pci_attach(device_t parent, device_t self, void *aux)
187{
188	struct ne_pci_softc *psc = device_private(self);
189	struct ne2000_softc *nsc = &psc->sc_ne2000;
190	struct dp8390_softc *dsc = &nsc->sc_dp8390;
191	struct pci_attach_args *pa = aux;
192	pci_chipset_tag_t pc = pa->pa_pc;
193	bus_space_tag_t nict;
194	bus_space_handle_t nich;
195	bus_space_tag_t asict;
196	bus_space_handle_t asich;
197	const char *intrstr;
198	const struct ne_pci_product *npp;
199	pci_intr_handle_t ih;
200	pcireg_t csr;
201
202	npp = ne_pci_lookup(pa);
203	if (npp == NULL) {
204		printf("\n");
205		panic("ne_pci_attach: impossible");
206	}
207
208	dsc->sc_dev = self;
209
210	printf(": %s Ethernet\n", npp->npp_name);
211
212#ifdef IPKDB_NE_PCI
213	if (ne_pci_isipkdb(pc, pa->pa_tag)) {
214		nict = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt;
215		nich = ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh;
216		ne_kip->port = nsc;
217	} else
218#endif
219	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
220	    &nict, &nich, NULL, NULL)) {
221		aprint_error_dev(dsc->sc_dev, "can't map i/o space\n");
222		return;
223	}
224
225	asict = nict;
226	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
227	    NE2000_ASIC_NPORTS, &asich)) {
228		aprint_error_dev(dsc->sc_dev, "can't subregion i/o space\n");
229		return;
230	}
231
232	dsc->sc_regt = nict;
233	dsc->sc_regh = nich;
234
235	nsc->sc_asict = asict;
236	nsc->sc_asich = asich;
237
238	/* Enable the card. */
239	csr = pci_conf_read(pc, pa->pa_tag,
240	    PCI_COMMAND_STATUS_REG);
241	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
242	    csr | PCI_COMMAND_MASTER_ENABLE);
243
244	/* This interface is always enabled. */
245	dsc->sc_enabled = 1;
246
247	dsc->sc_mediachange = npp->npp_mediachange;
248	dsc->sc_mediastatus = npp->npp_mediastatus;
249	dsc->sc_media_init = npp->npp_media_init;
250	dsc->init_card = npp->npp_init_card;
251
252	/*
253	 * Do generic NE2000 attach.  This will read the station address
254	 * from the EEPROM.
255	 */
256	ne2000_attach(nsc, NULL);
257
258	/* Map and establish the interrupt. */
259	if (pci_intr_map(pa, &ih)) {
260		aprint_error_dev(dsc->sc_dev, "couldn't map interrupt\n");
261		return;
262	}
263	intrstr = pci_intr_string(pc, ih);
264	psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dp8390_intr, dsc);
265	if (psc->sc_ih == NULL) {
266		aprint_error_dev(dsc->sc_dev, "couldn't establish interrupt");
267		if (intrstr != NULL)
268			aprint_error(" at %s", intrstr);
269		aprint_error("\n");
270		return;
271	}
272	aprint_normal_dev(dsc->sc_dev, "interrupting at %s\n", intrstr);
273}
274
275#ifdef IPKDB_NE_PCI
276static int
277ne_pci_isipkdb(pci_chipset_tag_t pc, pcitag_t tag)
278{
279	return !memcmp(&pc, &ipkdb_pc, sizeof pc)
280		&& !memcmp(&tag, &ipkdb_tag, sizeof tag);
281}
282
283int
284ne_pci_ipkdb_attach(struct ipkdb_if *kip, bus_space_tag_t iot,
285    pci_chipset_tag_t pc, int bus, int dev)
286{
287	struct pci_attach_args pa;
288	bus_space_tag_t nict, asict;
289	bus_space_handle_t nich, asich;
290	u_int32_t csr;
291
292	pa.pa_iot = iot;
293	pa.pa_pc = pc;
294	pa.pa_device = dev;
295	pa.pa_function = 0;
296	pa.pa_flags = PCI_FLAGS_IO_OKAY;
297	pa.pa_tag = pci_make_tag(pc, bus, dev, /*func*/0);
298	pa.pa_id = pci_conf_read(pc, pa.pa_tag, PCI_ID_REG);
299	pa.pa_class = pci_conf_read(pc, pa.pa_tag, PCI_CLASS_REG);
300	if (ne_pci_lookup(&pa) == NULL)
301		return -1;
302
303	if (pci_mapreg_map(&pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
304			&nict, &nich, NULL, NULL))
305		return -1;
306
307	asict = nict;
308	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
309				NE2000_ASIC_NPORTS, &asich)) {
310		bus_space_unmap(nict, nich, NE2000_NPORTS);
311		return -1;
312	}
313
314	/* Enable card */
315	csr = pci_conf_read(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG);
316	pci_conf_write(pc, pa.pa_tag, PCI_COMMAND_STATUS_REG,
317			csr | PCI_COMMAND_MASTER_ENABLE);
318
319	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regt = nict;
320	ipkdb_softc.sc_ne2000.sc_dp8390.sc_regh = nich;
321	ipkdb_softc.sc_ne2000.sc_asict = asict;
322	ipkdb_softc.sc_ne2000.sc_asich = asich;
323
324	kip->port = &ipkdb_softc;
325	ipkdb_pc = pc;
326	ipkdb_tag = pa.pa_tag;
327	ne_kip = kip;
328
329	if (ne2000_ipkdb_attach(kip) < 0) {
330		bus_space_unmap(nict, nich, NE2000_NPORTS);
331		return -1;
332	}
333
334	return 0;
335}
336#endif /* IPKDB_NE_PCI */
337