1 /* $NetBSD: if_sm_pcmcia.c,v 1.57 2018/02/08 09:05:20 dholland Exp $ */
2
3 /*-
4 * Copyright (c) 1997, 1998, 2000, 2004 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, and by Charles M. Hannum.
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_sm_pcmcia.c,v 1.57 2018/02/08 09:05:20 dholland Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/ioctl.h>
41 #include <sys/errno.h>
42 #include <sys/syslog.h>
43 #include <sys/select.h>
44 #include <sys/device.h>
45
46 #include <net/if.h>
47 #include <net/if_dl.h>
48 #include <net/if_ether.h>
49 #include <net/if_media.h>
50
51 #include <sys/intr.h>
52 #include <sys/bus.h>
53
54 #include <dev/mii/mii.h>
55 #include <dev/mii/miivar.h>
56
57 #include <dev/ic/smc91cxxreg.h>
58 #include <dev/ic/smc91cxxvar.h>
59
60 #include <dev/pcmcia/pcmciareg.h>
61 #include <dev/pcmcia/pcmciavar.h>
62 #include <dev/pcmcia/pcmciadevs.h>
63
64 int sm_pcmcia_match(device_t, cfdata_t, void *);
65 int sm_pcmcia_validate_config(struct pcmcia_config_entry *);
66 void sm_pcmcia_attach(device_t, device_t, void *);
67 int sm_pcmcia_detach(device_t, int);
68
69 struct sm_pcmcia_softc {
70 struct smc91cxx_softc sc_smc; /* real "smc" softc */
71
72 struct pcmcia_function *sc_pf; /* our PCMCIA function */
73 void *sc_ih; /* interrupt cookie */
74
75 int sc_state;
76 #define SM_PCMCIA_ATTACHED 3
77 };
78
79 CFATTACH_DECL_NEW(sm_pcmcia, sizeof(struct sm_pcmcia_softc),
80 sm_pcmcia_match, sm_pcmcia_attach, sm_pcmcia_detach, smc91cxx_activate);
81
82 int sm_pcmcia_enable(struct smc91cxx_softc *);
83 void sm_pcmcia_disable(struct smc91cxx_softc *);
84
85 int sm_pcmcia_ascii_enaddr(const char *, u_int8_t *);
86
87 const struct pcmcia_product sm_pcmcia_products[] = {
88 { PCMCIA_VENDOR_MEGAHERTZ2, PCMCIA_PRODUCT_MEGAHERTZ2_EM1144,
89 PCMCIA_CIS_INVALID },
90
91 { PCMCIA_VENDOR_MEGAHERTZ2, PCMCIA_PRODUCT_MEGAHERTZ2_XJACK,
92 PCMCIA_CIS_INVALID },
93
94 { PCMCIA_VENDOR_NEWMEDIA, PCMCIA_PRODUCT_NEWMEDIA_BASICS,
95 PCMCIA_CIS_INVALID },
96
97 #if 0
98 { PCMCIA_VENDOR_SMC, PCMCIA_PRODUCT_SMC_8020BT,
99 PCMCIA_CIS_INVALID },
100 #endif
101 { PCMCIA_VENDOR_PSION, PCMCIA_PRODUCT_PSION_GOLDCARD,
102 PCMCIA_CIS_INVALID },
103 };
104 const size_t sm_pcmcia_nproducts =
105 sizeof(sm_pcmcia_products) / sizeof(sm_pcmcia_products[0]);
106
107 int
sm_pcmcia_match(device_t parent,cfdata_t match,void * aux)108 sm_pcmcia_match(device_t parent, cfdata_t match,
109 void *aux)
110 {
111 struct pcmcia_attach_args *pa = aux;
112
113 /* This is to differentiate the serial function of some cards. */
114 if (pa->pf->function != PCMCIA_FUNCTION_NETWORK)
115 return (0);
116
117 if (pcmcia_product_lookup(pa, sm_pcmcia_products, sm_pcmcia_nproducts,
118 sizeof(sm_pcmcia_products[0]), NULL))
119 return (1);
120 return (0);
121 }
122
123 int
sm_pcmcia_validate_config(struct pcmcia_config_entry * cfe)124 sm_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
125 {
126 if (cfe->iftype != PCMCIA_IFTYPE_IO ||
127 cfe->num_memspace != 0 ||
128 cfe->num_iospace != 1 ||
129 cfe->iospace[0].length < SMC_IOSIZE)
130 return (EINVAL);
131 return (0);
132 }
133
134 void
sm_pcmcia_attach(device_t parent,device_t self,void * aux)135 sm_pcmcia_attach(device_t parent, device_t self, void *aux)
136 {
137 struct sm_pcmcia_softc *psc = device_private(self);
138 struct smc91cxx_softc *sc = &psc->sc_smc;
139 struct pcmcia_attach_args *pa = aux;
140 struct pcmcia_config_entry *cfe;
141 u_int8_t enaddr[ETHER_ADDR_LEN];
142 int error;
143
144 sc->sc_dev = self;
145 psc->sc_pf = pa->pf;
146
147 error = pcmcia_function_configure(pa->pf, sm_pcmcia_validate_config);
148 if (error) {
149 aprint_error_dev(self, "configure failed, error=%d\n", error);
150 return;
151 }
152
153 cfe = pa->pf->cfe;
154 sc->sc_bst = cfe->iospace[0].handle.iot;
155 sc->sc_bsh = cfe->iospace[0].handle.ioh;
156
157 error = sm_pcmcia_enable(sc);
158 if (error)
159 goto fail;
160
161 sc->sc_enable = sm_pcmcia_enable;
162 sc->sc_disable = sm_pcmcia_disable;
163
164 /*
165 * First try to get the Ethernet address from FUNCE/LANNID tuple.
166 * If that fails, try one of the CIS info strings.
167 */
168 if (pa->pf->pf_funce_lan_nidlen == ETHER_ADDR_LEN) {
169 memcpy(enaddr, pa->pf->pf_funce_lan_nid, ETHER_ADDR_LEN);
170 } else {
171 if (!sm_pcmcia_ascii_enaddr(pa->pf->sc->card.cis1_info[3], enaddr) &&
172 !sm_pcmcia_ascii_enaddr(pa->pf->sc->card.cis1_info[2], enaddr))
173 aprint_error_dev(self,
174 "unable to get Ethernet address\n");
175 }
176
177 /* Perform generic initialization. */
178 smc91cxx_attach(sc, enaddr);
179
180 psc->sc_state = SM_PCMCIA_ATTACHED;
181 sm_pcmcia_disable(sc);
182 return;
183
184 fail:
185 pcmcia_function_unconfigure(pa->pf);
186 }
187
188 int
sm_pcmcia_detach(device_t self,int flags)189 sm_pcmcia_detach(device_t self, int flags)
190 {
191 struct sm_pcmcia_softc *psc = device_private(self);
192 int error;
193
194 if (psc->sc_state != SM_PCMCIA_ATTACHED)
195 return (0);
196
197 error = smc91cxx_detach((device_t)&psc->sc_smc, flags);
198 if (error)
199 return (error);
200
201 pcmcia_function_unconfigure(psc->sc_pf);
202
203 return (0);
204 }
205
206 int
sm_pcmcia_ascii_enaddr(const char * cisstr,u_int8_t * myla)207 sm_pcmcia_ascii_enaddr(const char *cisstr, u_int8_t *myla)
208 {
209 u_int8_t digit;
210 int i;
211
212 /* No CIS string. */
213 if (cisstr == 0)
214 return (0);
215
216 memset(myla, 0, ETHER_ADDR_LEN);
217
218 for (i = 0, digit = 0; i < (ETHER_ADDR_LEN * 2); i++) {
219 if (cisstr[i] >= '0' && cisstr[i] <= '9')
220 digit |= cisstr[i] - '0';
221 else if (cisstr[i] >= 'a' && cisstr[i] <= 'f')
222 digit |= (cisstr[i] - 'a') + 10;
223 else if (cisstr[i] >= 'A' && cisstr[i] <= 'F')
224 digit |= (cisstr[i] - 'A') + 10;
225 else {
226 /* Bogus digit!! */
227 return (0);
228 }
229
230 /* Compensate for ordering of digits. */
231 if (i & 1) {
232 myla[i >> 1] = digit;
233 digit = 0;
234 } else
235 digit <<= 4;
236 }
237
238 return (1);
239 }
240
241 int
sm_pcmcia_enable(struct smc91cxx_softc * sc)242 sm_pcmcia_enable(struct smc91cxx_softc *sc)
243 {
244 struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
245 int error;
246
247 /* Establish the interrupt handler. */
248 psc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, smc91cxx_intr,
249 sc);
250 if (!psc->sc_ih)
251 return (EIO);
252
253 error = pcmcia_function_enable(psc->sc_pf);
254 if (error) {
255 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
256 psc->sc_ih = 0;
257 }
258
259 return (error);
260 }
261
262 void
sm_pcmcia_disable(struct smc91cxx_softc * sc)263 sm_pcmcia_disable(struct smc91cxx_softc *sc)
264 {
265 struct sm_pcmcia_softc *psc = (struct sm_pcmcia_softc *)sc;
266
267 pcmcia_function_disable(psc->sc_pf);
268 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
269 psc->sc_ih = 0;
270 }
271