xref: /netbsd-src/sys/dev/usb/uipaq.c (revision 8b0f9554ff8762542c4defc4f70e1eb76fb508fa) 
1 /*	$NetBSD: uipaq.c,v 1.8 2007/12/11 12:36:02 lukem Exp $	*/
2 /*	$OpenBSD: uipaq.c,v 1.1 2005/06/17 23:50:33 deraadt Exp $	*/
3 
4 /*
5  * Copyright (c) 2000-2005 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Lennart Augustsson (lennart@augustsson.net) at
10  * Carlstedt Research & Technology.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. All advertising materials mentioning features or use of this software
21  *    must display the following acknowledgement:
22  *        This product includes software developed by the NetBSD
23  *        Foundation, Inc. and its contributors.
24  * 4. Neither the name of The NetBSD Foundation nor the names of its
25  *    contributors may be used to endorse or promote products derived
26  *    from this software without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38  * POSSIBILITY OF SUCH DAMAGE.
39  */
40 
41 /*
42  * iPAQ driver
43  *
44  * 19 July 2003:	Incorporated changes suggested by Sam Lawrance from
45  * 			the uppc module
46  *
47  *
48  * Contact isis@cs.umd.edu if you have any questions/comments about this driver
49  */
50 
51 #include <sys/cdefs.h>
52 __KERNEL_RCSID(0, "$NetBSD: uipaq.c,v 1.8 2007/12/11 12:36:02 lukem Exp $");
53 
54 #include <sys/param.h>
55 #include <sys/systm.h>
56 #include <sys/kernel.h>
57 #include <sys/device.h>
58 #include <sys/conf.h>
59 #include <sys/tty.h>
60 
61 #include <dev/usb/usb.h>
62 
63 #include <dev/usb/usbcdc.h>	/*UCDC_* stuff */
64 
65 #include <dev/usb/usbdi.h>
66 #include <dev/usb/usbdi_util.h>
67 #include <dev/usb/usbdevs.h>
68 
69 #include <dev/usb/ucomvar.h>
70 
71 #ifdef UIPAQ_DEBUG
72 #define DPRINTF(x)	if (uipaqdebug) printf x
73 #define DPRINTFN(n,x)	if (uipaqdebug>(n)) printf x
74 int uipaqdebug = 0;
75 #else
76 #define DPRINTF(x)
77 #define DPRINTFN(n,x)
78 #endif
79 
80 #define UIPAQ_CONFIG_NO		1
81 #define UIPAQ_IFACE_INDEX	0
82 
83 #define UIPAQIBUFSIZE 1024
84 #define UIPAQOBUFSIZE 1024
85 
86 struct uipaq_softc {
87 	USBBASEDEVICE		sc_dev;		/* base device */
88 	usbd_device_handle	sc_udev;	/* device */
89 	usbd_interface_handle	sc_iface;	/* interface */
90 
91 	device_ptr_t		sc_subdev;	/* ucom uses that */
92 	u_int16_t		sc_lcr;		/* state for DTR/RTS */
93 
94 	u_int16_t		sc_flags;
95 
96 	u_char			sc_dying;
97 };
98 
99 /* Callback routines */
100 Static void	uipaq_set(void *, int, int, int);
101 
102 
103 /* Support routines. */
104 /* based on uppc module by Sam Lawrance */
105 Static void	uipaq_dtr(struct uipaq_softc *sc, int onoff);
106 Static void	uipaq_rts(struct uipaq_softc *sc, int onoff);
107 Static void	uipaq_break(struct uipaq_softc* sc, int onoff);
108 
109 
110 struct ucom_methods uipaq_methods = {
111 	NULL,
112 	uipaq_set,
113 	NULL,
114 	NULL,
115 	NULL,	/*open*/
116 	NULL,	/*close*/
117 	NULL,
118 	NULL
119 };
120 
121 struct uipaq_type {
122 	struct usb_devno	uv_dev;
123 	u_int16_t		uv_flags;
124 };
125 
126 static const struct uipaq_type uipaq_devs[] = {
127 	{{ USB_VENDOR_HP, USB_PRODUCT_HP_2215 }, 0 },
128 	{{ USB_VENDOR_HP, USB_PRODUCT_HP_568J }, 0},
129 	{{ USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQPOCKETPC} , 0},
130 	{{ USB_VENDOR_CASIO, USB_PRODUCT_CASIO_BE300} , 0},
131 	{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_WS007SH} , 0}
132 };
133 
134 #define uipaq_lookup(v, p) ((const struct uipaq_type *)usb_lookup(uipaq_devs, v, p))
135 
136 USB_DECLARE_DRIVER(uipaq);
137 
138 USB_MATCH(uipaq)
139 {
140 	USB_MATCH_START(uipaq, uaa);
141 
142 	DPRINTFN(20,("uipaq: vendor=0x%x, product=0x%x\n",
143 	    uaa->vendor, uaa->product));
144 
145 	return (uipaq_lookup(uaa->vendor, uaa->product) != NULL ?
146 	    UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
147 }
148 
149 USB_ATTACH(uipaq)
150 {
151 	USB_ATTACH_START(uipaq, sc, uaa);
152 	usbd_device_handle dev = uaa->device;
153 	usbd_interface_handle iface;
154 	usb_interface_descriptor_t *id;
155 	usb_endpoint_descriptor_t *ed;
156 	char *devinfop;
157 	char *devname = USBDEVNAME(sc->sc_dev);
158 	int i;
159 	usbd_status err;
160 	struct ucom_attach_args uca;
161 
162 	DPRINTFN(10,("\nuipaq_attach: sc=%p\n", sc));
163 
164 	/* Move the device into the configured state. */
165 	err = usbd_set_config_no(dev, UIPAQ_CONFIG_NO, 1);
166 	if (err) {
167 		printf("\n%s: failed to set configuration, err=%s\n",
168 		    devname, usbd_errstr(err));
169 		goto bad;
170 	}
171 
172 	err = usbd_device2interface_handle(dev, UIPAQ_IFACE_INDEX, &iface);
173 	if (err) {
174 		printf("\n%s: failed to get interface, err=%s\n",
175 		    devname, usbd_errstr(err));
176 		goto bad;
177 	}
178 
179 	devinfop = usbd_devinfo_alloc(dev, 0);
180 	USB_ATTACH_SETUP;
181 	printf("%s: %s\n", devname, devinfop);
182 	usbd_devinfo_free(devinfop);
183 
184 	sc->sc_flags = uipaq_lookup(uaa->vendor, uaa->product)->uv_flags;
185 
186 	id = usbd_get_interface_descriptor(iface);
187 
188 	sc->sc_udev = dev;
189 	sc->sc_iface = iface;
190 
191 	uca.ibufsize = UIPAQIBUFSIZE;
192 	uca.obufsize = UIPAQOBUFSIZE;
193 	uca.ibufsizepad = UIPAQIBUFSIZE;
194 	uca.opkthdrlen = 0;
195 	uca.device = dev;
196 	uca.iface = iface;
197 	uca.methods = &uipaq_methods;
198 	uca.arg = sc;
199 	uca.portno = UCOM_UNK_PORTNO;
200 	uca.info = "Generic";
201 
202 /*	err = uipaq_init(sc);
203 	if (err) {
204 		printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev),
205 		    usbd_errstr(err));
206 		goto bad;
207 	}*/
208 
209 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
210 	    USBDEV(sc->sc_dev));
211 
212 	uca.bulkin = uca.bulkout = -1;
213 	for (i=0; i<id->bNumEndpoints; i++) {
214 		ed = usbd_interface2endpoint_descriptor(iface, i);
215 		if (ed == NULL) {
216 			printf("%s: no endpoint descriptor for %d\n",
217 					devname,i);
218 			goto bad;
219 		}
220 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
221 		    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
222 			uca.bulkin = ed->bEndpointAddress;
223 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
224 		    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
225 			uca.bulkout = ed->bEndpointAddress;
226 		}
227 	}
228 	if (uca.bulkin == -1 || uca.bulkout == -1) {
229 		printf("%s: no proper endpoints found (%d,%d) \n",
230 		    devname, uca.bulkin, uca.bulkout);
231 		USB_ATTACH_ERROR_RETURN;
232 	}
233 
234 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
235 					    ucomprint, ucomsubmatch);
236 
237 	USB_ATTACH_SUCCESS_RETURN;
238 
239 bad:
240 	DPRINTF(("uipaq_attach: ATTACH ERROR\n"));
241 	sc->sc_dying = 1;
242 	USB_ATTACH_ERROR_RETURN;
243 }
244 
245 
246 void
247 uipaq_dtr(struct uipaq_softc* sc, int onoff)
248 {
249 	usb_device_request_t req;
250 	usbd_status err;
251 	int retries = 3;
252 
253 	DPRINTF(("%s: uipaq_dtr: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
254 
255 	/* Avoid sending unnecessary requests */
256 	if (onoff && (sc->sc_lcr & UCDC_LINE_DTR))
257 		return;
258 	if (!onoff && !(sc->sc_lcr & UCDC_LINE_DTR))
259 		return;
260 
261 	/* Other parameters depend on reg */
262 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
263 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
264 	sc->sc_lcr = onoff ? sc->sc_lcr | UCDC_LINE_DTR : sc->sc_lcr & ~UCDC_LINE_DTR;
265 	USETW(req.wValue, sc->sc_lcr);
266 	USETW(req.wIndex, 0x0);
267 	USETW(req.wLength, 0);
268 
269 	/* Fire off the request a few times if necessary */
270 	while (retries) {
271 		err = usbd_do_request(sc->sc_udev, &req, NULL);
272 		if (!err)
273 			break;
274 		retries--;
275 	}
276 }
277 
278 
279 void
280 uipaq_rts(struct uipaq_softc* sc, int onoff)
281 {
282 	usb_device_request_t req;
283 	usbd_status err;
284 	int retries = 3;
285 
286 	DPRINTF(("%s: uipaq_rts: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
287 
288 	/* Avoid sending unnecessary requests */
289 	if (onoff && (sc->sc_lcr & UCDC_LINE_RTS)) return;
290 	if (!onoff && !(sc->sc_lcr & UCDC_LINE_RTS)) return;
291 
292 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
293 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
294 	sc->sc_lcr = onoff ? sc->sc_lcr | UCDC_LINE_RTS : sc->sc_lcr & ~UCDC_LINE_RTS;
295 	USETW(req.wValue, sc->sc_lcr);
296 	USETW(req.wIndex, 0x0);
297 	USETW(req.wLength, 0);
298 
299 	while (retries) {
300 		err = usbd_do_request(sc->sc_udev, &req, NULL);
301 		if (!err)
302 			break;
303 		retries--;
304 	}
305 }
306 
307 
308 void
309 uipaq_break(struct uipaq_softc* sc, int onoff)
310 {
311 	usb_device_request_t req;
312 	usbd_status err;
313 	int retries = 3;
314 
315 	DPRINTF(("%s: uipaq_break: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
316 
317 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
318 	req.bRequest = UCDC_SEND_BREAK;
319 
320 	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
321 	USETW(req.wIndex, 0x0);
322 	USETW(req.wLength, 0);
323 
324 	while (retries) {
325 		err = usbd_do_request(sc->sc_udev, &req, NULL);
326 		if (!err)
327 			break;
328 		retries--;
329 	}
330 }
331 
332 
333 void
334 uipaq_set(void *addr, int portno, int reg, int onoff)
335 {
336 	struct uipaq_softc* sc = addr;
337 
338 	switch (reg) {
339 	case UCOM_SET_DTR:
340 		uipaq_dtr(addr, onoff);
341 		break;
342 	case UCOM_SET_RTS:
343 		uipaq_rts(addr, onoff);
344 		break;
345 	case UCOM_SET_BREAK:
346 		uipaq_break(addr, onoff);
347 		break;
348 	default:
349 		printf("%s: unhandled set request: reg=%x onoff=%x\n",
350 		    USBDEVNAME(sc->sc_dev), reg, onoff);
351 		return;
352 	}
353 }
354 
355 
356 int
357 uipaq_activate(device_ptr_t self, enum devact act)
358 {
359 	struct uipaq_softc *sc = (struct uipaq_softc *)self;
360 	int rv = 0;
361 
362 	switch (act) {
363 	case DVACT_ACTIVATE:
364 		return (EOPNOTSUPP);
365 		break;
366 
367 	case DVACT_DEACTIVATE:
368 		if (sc->sc_subdev != NULL)
369 			rv = config_deactivate(sc->sc_subdev);
370 		sc->sc_dying = 1;
371 		break;
372 	}
373 	return (rv);
374 }
375 
376 int
377 uipaq_detach(device_ptr_t self, int flags)
378 {
379 	struct uipaq_softc *sc = (struct uipaq_softc *)self;
380 	int rv = 0;
381 
382 	DPRINTF(("uipaq_detach: sc=%p flags=%d\n", sc, flags));
383 	sc->sc_dying = 1;
384 	if (sc->sc_subdev != NULL) {
385 		rv |= config_detach(sc->sc_subdev, flags);
386 		sc->sc_subdev = NULL;
387 	}
388 
389 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
390 	    USBDEV(sc->sc_dev));
391 
392 	return (rv);
393 }
394 
395