1/* $NetBSD: if_awi_pcmcia.c,v 1.43 2009/05/12 14:42:18 cegger 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 1.43 2009/05/12 14:42:18 cegger 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
74static int awi_pcmcia_match(device_t, cfdata_t, void *);
75static int awi_pcmcia_validate_config(struct pcmcia_config_entry *);
76static void awi_pcmcia_attach(device_t, device_t, void *);
77static int awi_pcmcia_detach(device_t, int);
78static int awi_pcmcia_enable(struct awi_softc *);
79static void awi_pcmcia_disable(struct awi_softc *);
80
81struct 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
92CFATTACH_DECL(awi_pcmcia, sizeof(struct awi_pcmcia_softc),
93    awi_pcmcia_match, awi_pcmcia_attach, awi_pcmcia_detach, awi_activate);
94
95static 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};
117static const size_t awi_pcmcia_nproducts =
118    sizeof(awi_pcmcia_products) / sizeof(awi_pcmcia_products[0]);
119
120static int
121awi_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
141static void
142awi_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
152static int
153awi_pcmcia_match(device_t parent, cfdata_t match,
154    void *aux)
155{
156	struct pcmcia_attach_args *pa = aux;
157
158	if (pcmcia_product_lookup(pa, awi_pcmcia_products, awi_pcmcia_nproducts,
159	    sizeof(awi_pcmcia_products[0]), NULL))
160		return (1);
161	return (0);
162}
163
164static int
165awi_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
166{
167	if (cfe->iftype != PCMCIA_IFTYPE_IO ||
168	    cfe->num_iospace < 1 ||
169	    cfe->iospace[0].length < AM79C930_IO_SIZE)
170		return (EINVAL);
171	if (cfe->num_memspace < 1) {
172		cfe->memspace[0].length = AM79C930_MEM_SIZE;
173		cfe->memspace[0].cardaddr = 0;
174		cfe->memspace[0].hostaddr = 0;
175	} else if (cfe->memspace[0].length < AM79C930_MEM_SIZE)
176		return (EINVAL);
177	return (0);
178}
179
180static void
181awi_pcmcia_attach(device_t parent, device_t self,
182    void *aux)
183{
184	struct awi_pcmcia_softc *psc = device_private(self);
185	struct awi_softc *sc = &psc->sc_awi;
186	struct pcmcia_attach_args *pa = aux;
187	struct pcmcia_config_entry *cfe;
188	int error;
189
190	psc->sc_pf = pa->pf;
191
192	error = pcmcia_function_configure(pa->pf, awi_pcmcia_validate_config);
193	if (error) {
194		aprint_error_dev(self, "configure failed, error=%d\n",
195		    error);
196		return;
197	}
198
199	cfe = pa->pf->cfe;
200	sc->sc_chip.sc_bustype = AM79C930_BUS_PCMCIA;
201	sc->sc_chip.sc_iot = cfe->iospace[0].handle.iot;
202	sc->sc_chip.sc_ioh = cfe->iospace[0].handle.ioh;
203	if (cfe->num_memspace > 0) {
204		sc->sc_chip.sc_memt = cfe->memspace[0].handle.memt;
205		sc->sc_chip.sc_memh = cfe->memspace[0].handle.memh;
206		am79c930_chip_init(&sc->sc_chip, 1);
207	} else
208		am79c930_chip_init(&sc->sc_chip, 0);
209
210	error = awi_pcmcia_enable(sc);
211        if (error)
212                goto fail;
213	sc->sc_enabled = 1;
214
215	awi_read_bytes(sc, AWI_BANNER, sc->sc_banner, AWI_BANNER_LEN);
216	if (memcmp(sc->sc_banner, "PCnetMobile:", 12))
217		goto fail2;
218
219	sc->sc_enable = awi_pcmcia_enable;
220	sc->sc_disable = awi_pcmcia_disable;
221
222	sc->sc_cansleep = 1;
223
224	if (awi_attach(sc) != 0) {
225		aprint_error_dev(self, "failed to attach controller\n");
226		goto fail2;
227	}
228
229	sc->sc_enabled = 0;
230	awi_pcmcia_disable(sc);
231	psc->sc_state = AWI_PCMCIA_ATTACHED;
232	return;
233
234fail2:
235	sc->sc_enabled = 0;
236	awi_pcmcia_disable(sc);
237fail:
238	pcmcia_function_unconfigure(pa->pf);
239}
240
241static int
242awi_pcmcia_detach(device_t self, int flags)
243{
244	struct awi_pcmcia_softc *psc = device_private(self);
245	int error;
246
247	if (psc->sc_state != AWI_PCMCIA_ATTACHED)
248		return (0);
249
250	error = awi_detach(&psc->sc_awi);
251	if (error)
252		return (error);
253
254	pcmcia_function_unconfigure(psc->sc_pf);
255
256	return (0);
257}
258