1/*	$NetBSD: ubsa.c,v 1.43 2021/08/07 16:19:17 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28/*
29 * Copyright (c) 2001 The NetBSD Foundation, Inc.
30 * All rights reserved.
31 *
32 * This code is derived from software contributed to The NetBSD Foundation
33 * by Ichiro FUKUHARA (ichiro@ichiro.org).
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 *    notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 *    notice, this list of conditions and the following disclaimer in the
42 *    documentation and/or other materials provided with the distribution.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
45 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
46 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
48 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
49 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
50 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
52 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
54 * POSSIBILITY OF SUCH DAMAGE.
55 */
56
57#include <sys/cdefs.h>
58__KERNEL_RCSID(0, "$NetBSD: ubsa.c,v 1.43 2021/08/07 16:19:17 thorpej Exp $");
59
60#ifdef _KERNEL_OPT
61#include "opt_usb.h"
62#endif
63
64#include <sys/param.h>
65#include <sys/systm.h>
66#include <sys/kernel.h>
67#include <sys/kmem.h>
68#include <sys/ioccom.h>
69#include <sys/fcntl.h>
70#include <sys/conf.h>
71#include <sys/tty.h>
72#include <sys/file.h>
73#include <sys/select.h>
74#include <sys/proc.h>
75#include <sys/device.h>
76#include <sys/poll.h>
77#include <sys/sysctl.h>
78
79#include <dev/usb/usb.h>
80#include <dev/usb/usbcdc.h>
81
82#include <dev/usb/usbdi.h>
83#include <dev/usb/usbdi_util.h>
84#include <dev/usb/usbdevs.h>
85#include <dev/usb/usb_quirks.h>
86
87#include <dev/usb/ucomvar.h>
88#include <dev/usb/ubsavar.h>
89
90#ifdef UBSA_DEBUG
91int		ubsadebug = 0;
92
93#define	DPRINTFN(n, x)	do { \
94				if (ubsadebug > (n)) \
95					printf x; \
96			} while (0)
97#else
98#define	DPRINTFN(n, x)
99#endif
100#define	DPRINTF(x) DPRINTFN(0, x)
101
102static const struct	ucom_methods ubsa_methods = {
103	.ucom_get_status = ubsa_get_status,
104	.ucom_set = ubsa_set,
105	.ucom_param = ubsa_param,
106	.ucom_open = ubsa_open,
107	.ucom_close = ubsa_close,
108};
109
110Static const struct ubsa_type {
111	struct usb_devno ubsa_dev;
112	int ubsa_quadumts;
113} ubsa_devs[] = {
114	/* BELKIN F5U103 */
115	{ { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 }, 0 },
116	/* BELKIN F5U120 */
117	{ { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 }, 0 },
118	/* GoHubs GO-COM232 */
119	{ { USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM }, 0 },
120	/* GoHubs GO-COM232 */
121	{ { USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 }, 0 },
122	/* Peracom */
123	{ { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 }, 0 },
124	/* Option N.V. */
125	{ { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MC3G }, 0 },
126	{ { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADUMTS2 }, 1 },
127	{ { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADUMTS }, 1 },
128	{ { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADPLUSUMTS }, 1 },
129	{ { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_HSDPA }, 1 },
130};
131#define ubsa_lookup(v, p) ((const struct ubsa_type *)usb_lookup(ubsa_devs, v, p))
132
133int ubsa_match(device_t, cfdata_t, void *);
134void ubsa_attach(device_t, device_t, void *);
135void ubsa_childdet(device_t, device_t);
136int ubsa_detach(device_t, int);
137
138CFATTACH_DECL2_NEW(ubsa, sizeof(struct ubsa_softc),
139    ubsa_match, ubsa_attach, ubsa_detach, NULL, NULL, ubsa_childdet);
140
141int
142ubsa_match(device_t parent, cfdata_t match, void *aux)
143{
144	struct usb_attach_arg *uaa = aux;
145
146	return (ubsa_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
147		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
148}
149
150void
151ubsa_attach(device_t parent, device_t self, void *aux)
152{
153	struct ubsa_softc *sc = device_private(self);
154	struct usb_attach_arg *uaa = aux;
155	struct usbd_device *dev = uaa->uaa_device;
156	usb_config_descriptor_t *cdesc;
157	usb_interface_descriptor_t *id;
158	usb_endpoint_descriptor_t *ed;
159	char *devinfop;
160	usbd_status err;
161	struct ucom_attach_args ucaa;
162	int i;
163
164	sc->sc_dev = self;
165	sc->sc_dying = false;
166
167	aprint_naive("\n");
168	aprint_normal("\n");
169
170	devinfop = usbd_devinfo_alloc(dev, 0);
171	aprint_normal_dev(self, "%s\n", devinfop);
172	usbd_devinfo_free(devinfop);
173
174        sc->sc_udev = dev;
175	sc->sc_config_index = UBSA_DEFAULT_CONFIG_INDEX;
176	sc->sc_numif = 1; /* default device has one interface */
177
178	/*
179	 * initialize rts, dtr variables to something
180	 * different from boolean 0, 1
181	 */
182	sc->sc_dtr = -1;
183	sc->sc_rts = -1;
184
185	/*
186	 * Quad UMTS cards use different requests to
187	 * control com settings and only some.
188	 */
189	sc->sc_quadumts = ubsa_lookup(uaa->uaa_vendor, uaa->uaa_product)->ubsa_quadumts;
190
191	DPRINTF(("ubsa attach: sc = %p\n", sc));
192
193	/* Move the device into the configured state. */
194	err = usbd_set_config_index(dev, sc->sc_config_index, 1);
195	if (err) {
196		aprint_error_dev(self,
197		    "failed to set configuration: %s\n",
198		    usbd_errstr(err));
199		goto error;
200	}
201
202	/* get the config descriptor */
203	cdesc = usbd_get_config_descriptor(sc->sc_udev);
204
205	if (cdesc == NULL) {
206		aprint_error_dev(self,
207		    "failed to get configuration descriptor\n");
208		goto error;
209	}
210
211	sc->sc_intr_number = -1;
212	sc->sc_intr_pipe = NULL;
213
214	/* get the interfaces */
215	err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX_OFFSET,
216			 &sc->sc_iface[0]);
217	if (err) {
218		/* can not get main interface */
219		goto error;
220	}
221
222	/* Find the endpoints */
223	id = usbd_get_interface_descriptor(sc->sc_iface[0]);
224	sc->sc_iface_number[0] = id->bInterfaceNumber;
225
226	/* initialize endpoints */
227	ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1;
228
229	for (i = 0; i < id->bNumEndpoints; i++) {
230		ed = usbd_interface2endpoint_descriptor(sc->sc_iface[0], i);
231		if (ed == NULL) {
232			aprint_error_dev(self,
233			     "no endpoint descriptor for %d\n", i);
234			break;
235		}
236
237		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
238		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
239			sc->sc_intr_number = ed->bEndpointAddress;
240			sc->sc_isize = UGETW(ed->wMaxPacketSize);
241		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
242		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
243			ucaa.ucaa_bulkin = ed->bEndpointAddress;
244			ucaa.ucaa_ibufsize = UGETW(ed->wMaxPacketSize);
245		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
246		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
247			ucaa.ucaa_bulkout = ed->bEndpointAddress;
248			ucaa.ucaa_obufsize = UGETW(ed->wMaxPacketSize);
249		}
250	} /* end of Endpoint loop */
251
252	if (sc->sc_intr_number == -1) {
253		aprint_error_dev(self, "Could not find interrupt in\n");
254		goto error;
255	}
256
257	if (ucaa.ucaa_bulkin == -1) {
258		aprint_error_dev(self, "Could not find data bulk in\n");
259		goto error;
260	}
261
262	if (ucaa.ucaa_bulkout == -1) {
263		aprint_error_dev(self, "Could not find data bulk out\n");
264		goto error;
265	}
266
267	ucaa.ucaa_portno = 0;
268	/* bulkin, bulkout set above */
269	ucaa.ucaa_ibufsizepad = ucaa.ucaa_ibufsize;
270	ucaa.ucaa_opkthdrlen = 0;
271	ucaa.ucaa_device = dev;
272	ucaa.ucaa_iface = sc->sc_iface[0];
273	ucaa.ucaa_methods = &ubsa_methods;
274	ucaa.ucaa_arg = sc;
275	ucaa.ucaa_info = NULL;
276	DPRINTF(("ubsa: int#=%d, in = %#x, out = %#x, intr = %#x\n",
277	    i, ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number));
278	sc->sc_subdevs[0] = config_found(self, &ucaa, ucomprint,
279	    CFARGS(.submatch = ucomsubmatch));
280
281	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
282
283	return;
284
285error:
286	sc->sc_dying = true;
287	return;
288}
289
290
291void
292ubsa_childdet(device_t self, device_t child)
293{
294	int i;
295	struct ubsa_softc *sc = device_private(self);
296
297	for (i = 0; i < sc->sc_numif; i++) {
298		if (sc->sc_subdevs[i] == child)
299			break;
300	}
301	KASSERT(i < sc->sc_numif);
302		sc->sc_subdevs[i] = NULL;
303}
304
305int
306ubsa_detach(device_t self, int flags)
307{
308	struct ubsa_softc *sc = device_private(self);
309	int i;
310	int rv = 0;
311
312	DPRINTF(("ubsa_detach: sc = %p\n", sc));
313
314	sc->sc_dying = true;
315
316	ubsa_close_pipe(sc);
317
318	for (i = 0; i < sc->sc_numif; i++) {
319		if (sc->sc_subdevs[i] != NULL) {
320			rv |= config_detach(sc->sc_subdevs[i], flags);
321			sc->sc_subdevs[i] = NULL;
322		}
323	}
324
325	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
326
327	return rv;
328}
329