1/* $NetBSD: if_fxp_cardbus.c,v 1.52 2016/07/07 06:55:41 msaitoh Exp $ */
2
3/*
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Johan Danielsson.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/*
33 * CardBus front-end for the Intel i82557 family of Ethernet chips.
34 */
35
36#include <sys/cdefs.h>
37__KERNEL_RCSID(0, "$NetBSD: if_fxp_cardbus.c,v 1.52 2016/07/07 06:55:41 msaitoh Exp $");
38
39#include "opt_inet.h"
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/mbuf.h>
44#include <sys/malloc.h>
45#include <sys/kernel.h>
46#include <sys/socket.h>
47#include <sys/ioctl.h>
48#include <sys/errno.h>
49#include <sys/device.h>
50
51#include <net/if.h>
52#include <net/if_dl.h>
53#include <net/if_media.h>
54#include <net/if_ether.h>
55
56#include <machine/endian.h>
57
58#ifdef INET
59#include <netinet/in.h>
60#include <netinet/if_inarp.h>
61#endif
62
63
64#include <sys/bus.h>
65#include <sys/intr.h>
66
67#include <dev/mii/miivar.h>
68
69#include <dev/ic/i82557reg.h>
70#include <dev/ic/i82557var.h>
71
72#include <dev/pci/pcivar.h>
73#include <dev/pci/pcireg.h>
74#include <dev/pci/pcidevs.h>
75
76#include <dev/cardbus/cardbusvar.h>
77#include <dev/pci/pcidevs.h>
78
79static int fxp_cardbus_match(device_t, cfdata_t, void *);
80static void fxp_cardbus_attach(device_t, device_t, void *);
81static int fxp_cardbus_detach(device_t, int);
82static void fxp_cardbus_setup(struct fxp_softc *);
83static int fxp_cardbus_enable(struct fxp_softc *);
84static void fxp_cardbus_disable(struct fxp_softc *);
85
86struct fxp_cardbus_softc {
87 struct fxp_softc sc;
88 cardbus_devfunc_t ct;
89 pcitag_t tag;
90 pcireg_t base0_reg;
91 pcireg_t base1_reg;
92};
93
94CFATTACH_DECL3_NEW(fxp_cardbus, sizeof(struct fxp_cardbus_softc),
95 fxp_cardbus_match, fxp_cardbus_attach, fxp_cardbus_detach, fxp_activate,
96 NULL, null_childdetached, DVF_DETACH_SHUTDOWN);
97
98#ifdef CBB_DEBUG
99#define DPRINTF(X) printf X
100#else
101#define DPRINTF(X)
102#endif
103
104static int
105fxp_cardbus_match(device_t parent, cfdata_t match, void *aux)
106{
107 struct cardbus_attach_args *ca = aux;
108
109 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_INTEL &&
110 PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_INTEL_8255X)
111 return (1);
112
113 return (0);
114}
115
116static void
117fxp_cardbus_attach(device_t parent, device_t self, void *aux)
118{
119 struct fxp_cardbus_softc *csc = device_private(self);
120 struct fxp_softc *sc = &csc->sc;
121 struct cardbus_attach_args *ca = aux;
122 bus_space_tag_t iot, memt;
123 bus_space_handle_t ioh, memh;
124
125 bus_addr_t adr;
126
127 sc->sc_dev = self;
128 csc->ct = ca->ca_ct;
129 csc->tag = ca->ca_tag;
130
131 /*
132 * Map control/status registers.
133 */
134 if (Cardbus_mapreg_map(csc->ct, PCI_BAR1,
135 PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, &adr, &sc->sc_size) == 0) {
136 csc->base1_reg = adr | 1;
137 sc->sc_st = iot;
138 sc->sc_sh = ioh;
139 } else if (Cardbus_mapreg_map(csc->ct, PCI_BAR0,
140 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT,
141 0, &memt, &memh, &adr, &sc->sc_size) == 0) {
142 csc->base0_reg = adr;
143 sc->sc_st = memt;
144 sc->sc_sh = memh;
145 } else
146 panic("%s: failed to allocate mem and io space", __func__);
147
148 if (ca->ca_cis.cis1_info[0] && ca->ca_cis.cis1_info[1])
149 printf(": %s %s\n", ca->ca_cis.cis1_info[0],
150 ca->ca_cis.cis1_info[1]);
151 else
152 printf("\n");
153
154 sc->sc_rev = PCI_REVISION(ca->ca_class);
155 if (sc->sc_rev >= FXP_REV_82558_A4)
156 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB;
157 if (sc->sc_rev >= FXP_REV_82559_A0)
158 sc->sc_flags |= FXPF_82559_RXCSUM;
159 if (sc->sc_rev >= FXP_REV_82550) {
160 sc->sc_flags &= ~FXPF_82559_RXCSUM;
161 sc->sc_flags |= FXPF_EXT_RFA;
162 }
163
164 sc->sc_dmat = ca->ca_dmat;
165 sc->sc_enable = fxp_cardbus_enable;
166 sc->sc_disable = fxp_cardbus_disable;
167 sc->sc_enabled = 0;
168
169 fxp_enable(sc);
170 fxp_attach(sc);
171 fxp_disable(sc);
172
173 if (pmf_device_register(self, NULL, NULL))
174 pmf_class_network_register(self, &sc->sc_ethercom.ec_if);
175 else
176 aprint_error_dev(self, "couldn't establish power handler\n");
177}
178
179static void
180fxp_cardbus_setup(struct fxp_softc * sc)
181{
182 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
183 pcireg_t command;
184
185 pcitag_t tag = csc->tag;
186
187 command = Cardbus_conf_read(csc->ct, tag, PCI_COMMAND_STATUS_REG);
188 if (csc->base0_reg) {
189 Cardbus_conf_write(csc->ct, tag,
190 PCI_BAR0, csc->base0_reg);
191 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE;
192 } else if (csc->base1_reg) {
193 Cardbus_conf_write(csc->ct, tag,
194 PCI_BAR1, csc->base1_reg);
195 command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MASTER_ENABLE;
196 }
197
198 /* enable the card */
199 Cardbus_conf_write(csc->ct, tag, PCI_COMMAND_STATUS_REG, command);
200}
201
202static int
203fxp_cardbus_enable(struct fxp_softc * sc)
204{
205 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
206 cardbus_devfunc_t ct = csc->ct;
207
208 Cardbus_function_enable(csc->ct);
209
210 fxp_cardbus_setup(sc);
211
212 /* Map and establish the interrupt. */
213
214 sc->sc_ih = Cardbus_intr_establish(ct, IPL_NET, fxp_intr, sc);
215 if (NULL == sc->sc_ih) {
216 aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n");
217 return 1;
218 }
219
220 return 0;
221}
222
223static void
224fxp_cardbus_disable(struct fxp_softc * sc)
225{
226 struct fxp_cardbus_softc *csc = (struct fxp_cardbus_softc *)sc;
227 cardbus_devfunc_t ct = csc->ct;
228
229 /* Remove interrupt handler. */
230 Cardbus_intr_disestablish(ct, sc->sc_ih);
231
232 Cardbus_function_disable(csc->ct);
233}
234
235static int
236fxp_cardbus_detach(device_t self, int flags)
237{
238 struct fxp_cardbus_softc *csc = device_private(self);
239 struct fxp_softc *sc = &csc->sc;
240 struct cardbus_devfunc *ct = csc->ct;
241 int rv, reg;
242
243#ifdef DIAGNOSTIC
244 if (ct == NULL)
245 panic("%s: data structure lacks", device_xname(self));
246#endif
247
248 if ((rv = fxp_detach(sc, flags)) != 0)
249 return rv;
250 /*
251 * Unhook the interrupt handler.
252 */
253 Cardbus_intr_disestablish(ct, sc->sc_ih);
254
255 /*
256 * release bus space and close window
257 */
258 if (csc->base0_reg)
259 reg = PCI_BAR0;
260 else
261 reg = PCI_BAR1;
262 Cardbus_mapreg_unmap(ct, reg, sc->sc_st, sc->sc_sh, sc->sc_size);
263 return 0;
264}
265