1 /* $NetBSD: if_awi_pcmcia.c,v 1.47 2019/01/08 08:47:21 msaitoh Exp $ */
2
3 /*-
4 * Copyright (c) 1999, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Bill Sommerfeld
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 * PCMCIA attachment for BayStack 650 802.11FH PCMCIA card,
34 * based on the AMD 79c930 802.11 controller chip.
35 *
36 * This attachment can probably be trivially adapted for other FH and
37 * DS cards based on the same chipset.
38 */
39
40 #include <sys/cdefs.h>
41 __KERNEL_RCSID(0, "$NetBSD: if_awi_pcmcia.c,v 1.47 2019/01/08 08:47:21 msaitoh Exp $");
42
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/mbuf.h>
46 #include <sys/socket.h>
47 #include <sys/ioctl.h>
48 #include <sys/errno.h>
49 #include <sys/syslog.h>
50 #include <sys/select.h>
51 #include <sys/device.h>
52
53 #include <net/if.h>
54 #include <net/if_dl.h>
55 #include <net/if_ether.h>
56 #include <net/if_media.h>
57
58 #include <net80211/ieee80211_netbsd.h>
59 #include <net80211/ieee80211_var.h>
60
61 #include <sys/cpu.h>
62 #include <sys/bus.h>
63 #include <sys/intr.h>
64
65 #include <dev/ic/am79c930reg.h>
66 #include <dev/ic/am79c930var.h>
67 #include <dev/ic/awireg.h>
68 #include <dev/ic/awivar.h>
69
70 #include <dev/pcmcia/pcmciareg.h>
71 #include <dev/pcmcia/pcmciavar.h>
72 #include <dev/pcmcia/pcmciadevs.h>
73
74 static int awi_pcmcia_match(device_t, cfdata_t, void *);
75 static int awi_pcmcia_validate_config(struct pcmcia_config_entry *);
76 static void awi_pcmcia_attach(device_t, device_t, void *);
77 static int awi_pcmcia_detach(device_t, int);
78 static int awi_pcmcia_enable(struct awi_softc *);
79 static void awi_pcmcia_disable(struct awi_softc *);
80
81 struct awi_pcmcia_softc {
82 struct awi_softc sc_awi; /* real "awi" softc */
83
84 /* PCMCIA-specific goo */
85 struct pcmcia_function *sc_pf; /* our PCMCIA function */
86 void *sc_ih; /* interrupt handler */
87
88 int sc_state;
89 #define AWI_PCMCIA_ATTACHED 3
90 };
91
92 CFATTACH_DECL_NEW(awi_pcmcia, sizeof(struct awi_pcmcia_softc),
93 awi_pcmcia_match, awi_pcmcia_attach, awi_pcmcia_detach, awi_activate);
94
95 static const struct pcmcia_product awi_pcmcia_products[] = {
96 { PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_STACK_650,
97 PCMCIA_CIS_BAY_STACK_650 },
98
99 { PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_STACK_660,
100 PCMCIA_CIS_BAY_STACK_660 },
101
102 { PCMCIA_VENDOR_BAY, PCMCIA_PRODUCT_BAY_SURFER_PRO,
103 PCMCIA_CIS_BAY_SURFER_PRO },
104
105 { PCMCIA_VENDOR_AMD, PCMCIA_PRODUCT_AMD_AM79C930,
106 PCMCIA_CIS_AMD_AM79C930 },
107
108 { PCMCIA_VENDOR_ICOM, PCMCIA_PRODUCT_ICOM_SL200,
109 PCMCIA_CIS_ICOM_SL200 },
110
111 { PCMCIA_VENDOR_NOKIA, PCMCIA_PRODUCT_NOKIA_C020_WLAN,
112 PCMCIA_CIS_NOKIA_C020_WLAN },
113
114 { PCMCIA_VENDOR_FARALLON, PCMCIA_PRODUCT_FARALLON_SKYLINE,
115 PCMCIA_CIS_FARALLON_SKYLINE },
116 };
117 static const size_t awi_pcmcia_nproducts =
118 sizeof(awi_pcmcia_products) / sizeof(awi_pcmcia_products[0]);
119
120 static int
awi_pcmcia_enable(struct awi_softc * sc)121 awi_pcmcia_enable(struct awi_softc *sc)
122 {
123 struct awi_pcmcia_softc *psc = (struct awi_pcmcia_softc *)sc;
124 struct pcmcia_function *pf = psc->sc_pf;
125 int error;
126
127 /* establish the interrupt. */
128 psc->sc_ih = pcmcia_intr_establish(pf, IPL_NET, awi_intr, sc);
129 if (!psc->sc_ih)
130 return (EIO);
131
132 error = pcmcia_function_enable(pf);
133 if (error) {
134 pcmcia_intr_disestablish(pf, psc->sc_ih);
135 psc->sc_ih = 0;
136 }
137
138 return (error);
139 }
140
141 static void
awi_pcmcia_disable(struct awi_softc * sc)142 awi_pcmcia_disable(struct awi_softc *sc)
143 {
144 struct awi_pcmcia_softc *psc = (struct awi_pcmcia_softc *)sc;
145 struct pcmcia_function *pf = psc->sc_pf;
146
147 pcmcia_function_disable(pf);
148 pcmcia_intr_disestablish(pf, psc->sc_ih);
149 psc->sc_ih = 0;
150 }
151
152 static int
awi_pcmcia_match(device_t parent,cfdata_t match,void * aux)153 awi_pcmcia_match(device_t parent, cfdata_t match, void *aux)
154 {
155 struct pcmcia_attach_args *pa = aux;
156
157 if (pcmcia_product_lookup(pa, awi_pcmcia_products, awi_pcmcia_nproducts,
158 sizeof(awi_pcmcia_products[0]), NULL))
159 return (1);
160 return (0);
161 }
162
163 static int
awi_pcmcia_validate_config(struct pcmcia_config_entry * cfe)164 awi_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
165 {
166 if (cfe->iftype != PCMCIA_IFTYPE_IO ||
167 cfe->num_iospace < 1 ||
168 cfe->iospace[0].length < AM79C930_IO_SIZE)
169 return (EINVAL);
170 if (cfe->num_memspace < 1) {
171 cfe->memspace[0].length = AM79C930_MEM_SIZE;
172 cfe->memspace[0].cardaddr = 0;
173 cfe->memspace[0].hostaddr = 0;
174 } else if (cfe->memspace[0].length < AM79C930_MEM_SIZE)
175 return (EINVAL);
176 return (0);
177 }
178
179 static void
awi_pcmcia_attach(device_t parent,device_t self,void * aux)180 awi_pcmcia_attach(device_t parent, device_t self, void *aux)
181 {
182 struct awi_pcmcia_softc *psc = device_private(self);
183 struct awi_softc *sc = &psc->sc_awi;
184 struct pcmcia_attach_args *pa = aux;
185 struct pcmcia_config_entry *cfe;
186 int error;
187
188 sc->sc_dev = self;
189 psc->sc_pf = pa->pf;
190
191 error = pcmcia_function_configure(pa->pf, awi_pcmcia_validate_config);
192 if (error) {
193 aprint_error_dev(self, "configure failed, error=%d\n", error);
194 return;
195 }
196
197 cfe = pa->pf->cfe;
198 sc->sc_chip.sc_bustype = AM79C930_BUS_PCMCIA;
199 sc->sc_chip.sc_iot = cfe->iospace[0].handle.iot;
200 sc->sc_chip.sc_ioh = cfe->iospace[0].handle.ioh;
201 if (cfe->num_memspace > 0) {
202 sc->sc_chip.sc_memt = cfe->memspace[0].handle.memt;
203 sc->sc_chip.sc_memh = cfe->memspace[0].handle.memh;
204 am79c930_chip_init(&sc->sc_chip, 1);
205 } else
206 am79c930_chip_init(&sc->sc_chip, 0);
207
208 error = awi_pcmcia_enable(sc);
209 if (error)
210 goto fail;
211 sc->sc_enabled = 1;
212
213 awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN);
214 if (memcmp(sc->sc_banner, "PCnetMobile:", 12))
215 goto fail2;
216
217 sc->sc_enable = awi_pcmcia_enable;
218 sc->sc_disable = awi_pcmcia_disable;
219
220 sc->sc_cansleep = 1;
221
222 if (awi_attach(sc) != 0) {
223 aprint_error_dev(self, "failed to attach controller\n");
224 goto fail2;
225 }
226
227 sc->sc_enabled = 0;
228 awi_pcmcia_disable(sc);
229 psc->sc_state = AWI_PCMCIA_ATTACHED;
230 return;
231
232 fail2:
233 sc->sc_enabled = 0;
234 awi_pcmcia_disable(sc);
235 fail:
236 pcmcia_function_unconfigure(pa->pf);
237 }
238
239 static int
awi_pcmcia_detach(device_t self,int flags)240 awi_pcmcia_detach(device_t self, int flags)
241 {
242 struct awi_pcmcia_softc *psc = device_private(self);
243 int error;
244
245 if (psc->sc_state != AWI_PCMCIA_ATTACHED)
246 return (0);
247
248 error = awi_detach(&psc->sc_awi);
249 if (error)
250 return (error);
251
252 pcmcia_function_unconfigure(psc->sc_pf);
253
254 return (0);
255 }
256