1/*	$NetBSD: com_pcmcia.c,v 1.60 2009/11/12 20:29:30 dyoung Exp $	 */
2
3/*-
4 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
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 * Copyright (c) 1991 The Regents of the University of California.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 *    notice, this list of conditions and the following disclaimer in the
43 *    documentation and/or other materials provided with the distribution.
44 * 3. Neither the name of the University nor the names of its contributors
45 *    may be used to endorse or promote products derived from this software
46 *    without specific prior written permission.
47 *
48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 * SUCH DAMAGE.
59 *
60 *	@(#)com.c	7.5 (Berkeley) 5/16/91
61 */
62
63#include <sys/cdefs.h>
64__KERNEL_RCSID(0, "$NetBSD: com_pcmcia.c,v 1.60 2009/11/12 20:29:30 dyoung Exp $");
65
66#include <sys/param.h>
67#include <sys/systm.h>
68#include <sys/ioctl.h>
69#include <sys/select.h>
70#include <sys/tty.h>
71#include <sys/proc.h>
72#include <sys/conf.h>
73#include <sys/file.h>
74#include <sys/uio.h>
75#include <sys/kernel.h>
76#include <sys/syslog.h>
77#include <sys/device.h>
78
79#include <sys/intr.h>
80#include <sys/bus.h>
81
82#include <dev/pcmcia/pcmciavar.h>
83#include <dev/pcmcia/pcmciareg.h>
84#include <dev/pcmcia/pcmciadevs.h>
85
86#include <dev/ic/comreg.h>
87#include <dev/ic/comvar.h>
88
89#include <dev/isa/isareg.h>
90
91int com_pcmcia_match(device_t, cfdata_t , void *);
92int com_pcmcia_validate_config(struct pcmcia_config_entry *);
93void com_pcmcia_attach(device_t, device_t, void *);
94int com_pcmcia_detach(device_t, int);
95
96int com_pcmcia_enable(struct com_softc *);
97void com_pcmcia_disable(struct com_softc *);
98
99struct com_pcmcia_softc {
100	struct com_softc sc_com;		/* real "com" softc */
101
102	/* PCMCIA-specific goo */
103	struct pcmcia_function *sc_pf;		/* our PCMCIA function */
104	void *sc_ih;				/* interrupt handler */
105	int sc_attached;
106};
107
108CFATTACH_DECL_NEW(com_pcmcia, sizeof(struct com_pcmcia_softc),
109    com_pcmcia_match, com_pcmcia_attach, com_pcmcia_detach, NULL);
110
111static const struct pcmcia_product com_pcmcia_products[] = {
112	{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
113	  PCMCIA_CIS_MEGAHERTZ_XJ2288 },
114	{ PCMCIA_VENDOR_TDK, PCMCIA_PRODUCT_TDK_BLUETOOTH_PCCARD,
115	  PCMCIA_CIS_INVALID },
116};
117static const size_t com_pcmcia_nproducts =
118    sizeof(com_pcmcia_products) / sizeof(com_pcmcia_products[0]);
119
120int
121com_pcmcia_match(device_t parent, cfdata_t match, void *aux)
122{
123	int comportmask;
124	struct pcmcia_attach_args *pa = aux;
125	struct pcmcia_config_entry *cfe;
126
127	/* 1. Does it claim to be a serial device? */
128	if (pa->pf->function == PCMCIA_FUNCTION_SERIAL)
129		return 1;
130
131	/* 2. Does it have all four 'standard' port ranges? */
132	comportmask = 0;
133	SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) {
134		switch (cfe->iospace[0].start) {
135		case IO_COM1:
136			comportmask |= 1;
137			break;
138		case IO_COM2:
139			comportmask |= 2;
140			break;
141		case IO_COM3:
142			comportmask |= 4;
143			break;
144		case IO_COM4:
145			comportmask |= 8;
146			break;
147		}
148	}
149
150	if (comportmask == 15)
151		return 1;
152
153	/* 3. Is this a card we know about? */
154	if (pcmcia_product_lookup(pa, com_pcmcia_products, com_pcmcia_nproducts,
155	    sizeof(com_pcmcia_products[0]), NULL))
156		return 1;
157
158	return 0;
159}
160
161int
162com_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
163{
164	if (cfe->iftype != PCMCIA_IFTYPE_IO ||
165	    cfe->num_iospace != 1)
166		return (EINVAL);
167	/* Some cards have a memory space, but we don't use it. */
168	cfe->num_memspace = 0;
169	return (0);
170}
171
172void
173com_pcmcia_attach(device_t parent, device_t self, void *aux)
174{
175	struct com_pcmcia_softc *psc = device_private(self);
176	struct com_softc *sc = &psc->sc_com;
177	struct pcmcia_attach_args *pa = aux;
178	struct pcmcia_config_entry *cfe;
179	int error;
180
181	sc->sc_dev = self;
182	psc->sc_pf = pa->pf;
183
184	error = pcmcia_function_configure(pa->pf, com_pcmcia_validate_config);
185	if (error) {
186		aprint_error_dev(self, "configure failed, error=%d\n", error);
187		return;
188	}
189
190	cfe = pa->pf->cfe;
191	COM_INIT_REGS(sc->sc_regs, cfe->iospace[0].handle.iot,
192	    cfe->iospace[0].handle.ioh, -1);
193
194	error = com_pcmcia_enable(sc);
195	if (error)
196		goto fail;
197
198	sc->enabled = 1;
199
200	sc->sc_frequency = COM_FREQ;
201
202	sc->enable = com_pcmcia_enable;
203	sc->disable = com_pcmcia_disable;
204
205	aprint_normal("%s", device_xname(self));
206
207	com_attach_subr(sc);
208
209	if (!pmf_device_register1(self, com_suspend, com_resume,
210	    com_cleanup))
211		aprint_error_dev(self, "couldn't establish power handler\n");
212
213	sc->enabled = 0;
214
215	psc->sc_attached = 1;
216	com_pcmcia_disable(sc);
217	return;
218
219fail:
220	pcmcia_function_unconfigure(pa->pf);
221}
222
223int
224com_pcmcia_detach(device_t self, int flags)
225{
226	struct com_pcmcia_softc *psc = device_private(self);
227	int error;
228
229	if (!psc->sc_attached)
230		return (0);
231
232	if ((error = com_detach(self, flags)) != 0)
233		return error;
234
235	pmf_device_deregister(self);
236
237	pcmcia_function_unconfigure(psc->sc_pf);
238	return (0);
239}
240
241int
242com_pcmcia_enable(struct com_softc *sc)
243{
244	struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
245	struct pcmcia_function *pf = psc->sc_pf;
246	int error;
247
248	/* establish the interrupt. */
249	psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc);
250	if (psc->sc_ih == NULL) {
251		aprint_error_dev(sc->sc_dev, "couldn't establish interrupt\n");
252		return (1);
253	}
254
255	if ((error = pcmcia_function_enable(pf)) != 0) {
256		pcmcia_intr_disestablish(pf, psc->sc_ih);
257		psc->sc_ih = 0;
258		return (error);
259	}
260
261	if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
262	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) ||
263	    (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) {
264		int reg;
265
266		/* turn off the ethernet-disable bit */
267		reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
268		if (reg & 0x08) {
269			reg &= ~0x08;
270			pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
271		}
272	}
273
274	return (0);
275}
276
277void
278com_pcmcia_disable(struct com_softc *sc)
279{
280	struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
281
282	pcmcia_function_disable(psc->sc_pf);
283	pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
284	psc->sc_ih = 0;
285}
286