xref: /netbsd/sys/dev/usb/uvisor.c (revision bf9ec67e)
1 /*	$NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $	*/
2 
3 /*
4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Lennart Augustsson (lennart@augustsson.net) at
9  * Carlstedt Research & Technology.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *        This product includes software developed by the NetBSD
22  *        Foundation, Inc. and its contributors.
23  * 4. Neither the name of The NetBSD Foundation nor the names of its
24  *    contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37  * POSSIBILITY OF SUCH DAMAGE.
38  */
39 
40 /*
41  * Handspring Visor (Palmpilot compatible PDA) driver
42  */
43 
44 #include <sys/cdefs.h>
45 __KERNEL_RCSID(0, "$NetBSD: uvisor.c,v 1.14 2002/02/27 23:00:03 augustss Exp $");
46 
47 #include <sys/param.h>
48 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/device.h>
51 #include <sys/conf.h>
52 #include <sys/tty.h>
53 
54 #include <dev/usb/usb.h>
55 #include <dev/usb/usbhid.h>
56 
57 #include <dev/usb/usbdi.h>
58 #include <dev/usb/usbdi_util.h>
59 #include <dev/usb/usbdevs.h>
60 
61 #include <dev/usb/ucomvar.h>
62 
63 #ifdef UVISOR_DEBUG
64 #define DPRINTF(x)	if (uvisordebug) printf x
65 #define DPRINTFN(n,x)	if (uvisordebug>(n)) printf x
66 int uvisordebug = 0;
67 #else
68 #define DPRINTF(x)
69 #define DPRINTFN(n,x)
70 #endif
71 
72 #define UVISOR_CONFIG_INDEX	0
73 #define UVISOR_IFACE_INDEX	0
74 
75 /* From the Linux driver */
76 /*
77  * UVISOR_REQUEST_BYTES_AVAILABLE asks the visor for the number of bytes that
78  * are available to be transfered to the host for the specified endpoint.
79  * Currently this is not used, and always returns 0x0001
80  */
81 #define UVISOR_REQUEST_BYTES_AVAILABLE		0x01
82 
83 /*
84  * UVISOR_CLOSE_NOTIFICATION is set to the device to notify it that the host
85  * is now closing the pipe. An empty packet is sent in response.
86  */
87 #define UVISOR_CLOSE_NOTIFICATION		0x02
88 
89 /*
90  * UVISOR_GET_CONNECTION_INFORMATION is sent by the host during enumeration to
91  * get the endpoints used by the connection.
92  */
93 #define UVISOR_GET_CONNECTION_INFORMATION	0x03
94 
95 
96 /*
97  * UVISOR_GET_CONNECTION_INFORMATION returns data in the following format
98  */
99 #define UVISOR_MAX_CONN 8
100 struct uvisor_connection_info {
101 	uWord	num_ports;
102 	struct {
103 		uByte	port_function_id;
104 		uByte	port;
105 	} connections[UVISOR_MAX_CONN];
106 };
107 #define UVISOR_CONNECTION_INFO_SIZE 18
108 
109 /* struct uvisor_connection_info.connection[x].port_function_id defines: */
110 #define UVISOR_FUNCTION_GENERIC		0x00
111 #define UVISOR_FUNCTION_DEBUGGER	0x01
112 #define UVISOR_FUNCTION_HOTSYNC		0x02
113 #define UVISOR_FUNCTION_CONSOLE		0x03
114 #define UVISOR_FUNCTION_REMOTE_FILE_SYS	0x04
115 
116 /*
117  * Unknown PalmOS stuff.
118  */
119 #define UVISOR_GET_PALM_INFORMATION		0x04
120 #define UVISOR_GET_PALM_INFORMATION_LEN		0x14
121 
122 
123 #define UVISORIBUFSIZE 1024
124 #define UVISOROBUFSIZE 1024
125 
126 struct uvisor_softc {
127 	USBBASEDEVICE		sc_dev;		/* base device */
128 	usbd_device_handle	sc_udev;	/* device */
129 	usbd_interface_handle	sc_iface;	/* interface */
130 
131 	device_ptr_t		sc_subdevs[UVISOR_MAX_CONN];
132 	int			sc_numcon;
133 
134 	u_int16_t		sc_flags;
135 
136 	u_char			sc_dying;
137 };
138 
139 Static usbd_status uvisor_init(struct uvisor_softc *,
140 			       struct uvisor_connection_info *);
141 
142 Static void uvisor_close(void *, int);
143 
144 
145 struct ucom_methods uvisor_methods = {
146 	NULL,
147 	NULL,
148 	NULL,
149 	NULL,
150 	NULL,
151 	uvisor_close,
152 	NULL,
153 	NULL,
154 };
155 
156 struct uvisor_type {
157 	struct usb_devno	uv_dev;
158 	u_int16_t		uv_flags;
159 #define PALM4	0x0001
160 };
161 static const struct uvisor_type uvisor_devs[] = {
162 	{{ USB_VENDOR_HANDSPRING, USB_PRODUCT_HANDSPRING_VISOR }, 0 },
163 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M500 }, PALM4 },
164 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M505 }, PALM4 },
165 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M125 }, PALM4 },
166 	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_40 }, PALM4 },
167 /*	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_25 }, PALM4 },*/
168 };
169 #define uvisor_lookup(v, p) ((struct uvisor_type *)usb_lookup(uvisor_devs, v, p))
170 
171 USB_DECLARE_DRIVER(uvisor);
172 
173 USB_MATCH(uvisor)
174 {
175 	USB_MATCH_START(uvisor, uaa);
176 
177 	if (uaa->iface != NULL)
178 		return (UMATCH_NONE);
179 
180 	DPRINTFN(20,("uvisor: vendor=0x%x, product=0x%x\n",
181 		     uaa->vendor, uaa->product));
182 
183 	return (uvisor_lookup(uaa->vendor, uaa->product) != NULL ?
184 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
185 }
186 
187 USB_ATTACH(uvisor)
188 {
189 	USB_ATTACH_START(uvisor, sc, uaa);
190 	usbd_device_handle dev = uaa->device;
191 	usbd_interface_handle iface;
192 	usb_interface_descriptor_t *id;
193 	struct uvisor_connection_info coninfo;
194 	usb_endpoint_descriptor_t *ed;
195 	char devinfo[1024];
196 	char *devname = USBDEVNAME(sc->sc_dev);
197 	int i, j, hasin, hasout, port;
198 	usbd_status err;
199 	struct ucom_attach_args uca;
200 
201 	DPRINTFN(10,("\nuvisor_attach: sc=%p\n", sc));
202 
203 	/* Move the device into the configured state. */
204 	err = usbd_set_config_index(dev, UVISOR_CONFIG_INDEX, 1);
205 	if (err) {
206 		printf("\n%s: failed to set configuration, err=%s\n",
207 		       devname, usbd_errstr(err));
208 		goto bad;
209 	}
210 
211 	err = usbd_device2interface_handle(dev, UVISOR_IFACE_INDEX, &iface);
212 	if (err) {
213 		printf("\n%s: failed to get interface, err=%s\n",
214 		       devname, usbd_errstr(err));
215 		goto bad;
216 	}
217 
218 	usbd_devinfo(dev, 0, devinfo);
219 	USB_ATTACH_SETUP;
220 	printf("%s: %s\n", devname, devinfo);
221 
222 	sc->sc_flags = uvisor_lookup(uaa->vendor, uaa->product)->uv_flags;
223 
224 	id = usbd_get_interface_descriptor(iface);
225 
226 	sc->sc_udev = dev;
227 	sc->sc_iface = iface;
228 
229 	uca.ibufsize = UVISORIBUFSIZE;
230 	uca.obufsize = UVISOROBUFSIZE;
231 	uca.ibufsizepad = UVISORIBUFSIZE;
232 	uca.opkthdrlen = 0;
233 	uca.device = dev;
234 	uca.iface = iface;
235 	uca.methods = &uvisor_methods;
236 	uca.arg = sc;
237 
238 	err = uvisor_init(sc, &coninfo);
239 	if (err) {
240 		printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev),
241 		       usbd_errstr(err));
242 		goto bad;
243 	}
244 
245 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
246 			   USBDEV(sc->sc_dev));
247 
248 	sc->sc_numcon = UGETW(coninfo.num_ports);
249 	if (sc->sc_numcon > UVISOR_MAX_CONN)
250 		sc->sc_numcon = UVISOR_MAX_CONN;
251 
252 	/* Attach a ucom for each connection. */
253 	for (i = 0; i < sc->sc_numcon; ++i) {
254 		switch (coninfo.connections[i].port_function_id) {
255 		case UVISOR_FUNCTION_GENERIC:
256 			uca.info = "Generic";
257 			break;
258 		case UVISOR_FUNCTION_DEBUGGER:
259 			uca.info = "Debugger";
260 			break;
261 		case UVISOR_FUNCTION_HOTSYNC:
262 			uca.info = "HotSync";
263 			break;
264 		case UVISOR_FUNCTION_REMOTE_FILE_SYS:
265 			uca.info = "Remote File System";
266 			break;
267 		default:
268 			uca.info = "unknown";
269 			break;
270 		}
271 		port = coninfo.connections[i].port;
272 		uca.portno = port;
273 		uca.bulkin = port | UE_DIR_IN;
274 		uca.bulkout = port | UE_DIR_OUT;
275 		/* Verify that endpoints exist. */
276 		for (hasin = hasout = j = 0; j < id->bNumEndpoints; j++) {
277 			ed = usbd_interface2endpoint_descriptor(iface, j);
278 			if (ed == NULL)
279 				break;
280 			if (UE_GET_ADDR(ed->bEndpointAddress) == port &&
281 			    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
282 				if (UE_GET_DIR(ed->bEndpointAddress)
283 				    == UE_DIR_IN)
284 					hasin++;
285 				else
286 					hasout++;
287 			}
288 		}
289 		if (hasin == 1 && hasout == 1)
290 			sc->sc_subdevs[i] = config_found_sm(self, &uca,
291 			    ucomprint, ucomsubmatch);
292 		else
293 			printf("%s: no proper endpoints for port %d (%d,%d)\n",
294 			    USBDEVNAME(sc->sc_dev), port, hasin, hasout);
295 	}
296 
297 	USB_ATTACH_SUCCESS_RETURN;
298 
299 bad:
300 	DPRINTF(("uvisor_attach: ATTACH ERROR\n"));
301 	sc->sc_dying = 1;
302 	USB_ATTACH_ERROR_RETURN;
303 }
304 
305 int
306 uvisor_activate(device_ptr_t self, enum devact act)
307 {
308 	struct uvisor_softc *sc = (struct uvisor_softc *)self;
309 	int rv = 0;
310 	int i;
311 
312 	switch (act) {
313 	case DVACT_ACTIVATE:
314 		return (EOPNOTSUPP);
315 		break;
316 
317 	case DVACT_DEACTIVATE:
318 		for (i = 0; i < sc->sc_numcon; i++)
319 			if (sc->sc_subdevs[i] != NULL)
320 				rv = config_deactivate(sc->sc_subdevs[i]);
321 		sc->sc_dying = 1;
322 		break;
323 	}
324 	return (rv);
325 }
326 
327 int
328 uvisor_detach(device_ptr_t self, int flags)
329 {
330 	struct uvisor_softc *sc = (struct uvisor_softc *)self;
331 	int rv = 0;
332 	int i;
333 
334 	DPRINTF(("uvisor_detach: sc=%p flags=%d\n", sc, flags));
335 	sc->sc_dying = 1;
336 	for (i = 0; i < sc->sc_numcon; i++) {
337 		if (sc->sc_subdevs[i] != NULL) {
338 			rv |= config_detach(sc->sc_subdevs[i], flags);
339 			sc->sc_subdevs[i] = NULL;
340 		}
341 	}
342 
343 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
344 			   USBDEV(sc->sc_dev));
345 
346 
347 	return (rv);
348 }
349 
350 usbd_status
351 uvisor_init(struct uvisor_softc *sc, struct uvisor_connection_info *ci)
352 {
353 	usbd_status err;
354 	usb_device_request_t req;
355 	int actlen;
356 	uWord avail;
357 	char buffer[256];
358 
359 	DPRINTF(("uvisor_init: getting connection info\n"));
360 	req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
361 	req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
362 	USETW(req.wValue, 0);
363 	USETW(req.wIndex, 0);
364 	USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
365 	err = usbd_do_request_flags(sc->sc_udev, &req, ci,
366 		  USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
367 	if (err)
368 		return (err);
369 
370 	if (sc->sc_flags & PALM4) {
371 		/* Palm OS 4.0 Hack */
372 		req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
373 		req.bRequest = UVISOR_GET_PALM_INFORMATION;
374 		USETW(req.wValue, 0);
375 		USETW(req.wIndex, 0);
376 		USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
377 		err = usbd_do_request(sc->sc_udev, &req, buffer);
378 		if (err)
379 			return (err);
380 		req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
381 		req.bRequest = UVISOR_GET_PALM_INFORMATION;
382 		USETW(req.wValue, 0);
383 		USETW(req.wIndex, 0);
384 		USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
385 		err = usbd_do_request(sc->sc_udev, &req, buffer);
386 		if (err)
387 			return (err);
388 	}
389 
390 	DPRINTF(("uvisor_init: getting available bytes\n"));
391 	req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
392 	req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
393 	USETW(req.wValue, 0);
394 	USETW(req.wIndex, 5);
395 	USETW(req.wLength, sizeof avail);
396 	err = usbd_do_request(sc->sc_udev, &req, &avail);
397 	if (err)
398 		return (err);
399 	DPRINTF(("uvisor_init: avail=%d\n", UGETW(avail)));
400 
401 	DPRINTF(("uvisor_init: done\n"));
402 	return (err);
403 }
404 
405 void
406 uvisor_close(void *addr, int portno)
407 {
408 	struct uvisor_softc *sc = addr;
409 	usb_device_request_t req;
410 	struct uvisor_connection_info coninfo; /* XXX ? */
411 	int actlen;
412 
413 	if (sc->sc_dying)
414 		return;
415 
416 	req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */
417 	req.bRequest = UVISOR_CLOSE_NOTIFICATION;
418 	USETW(req.wValue, 0);
419 	USETW(req.wIndex, 0);
420 	USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
421 	(void)usbd_do_request_flags(sc->sc_udev, &req, &coninfo,
422 		  USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
423 }
424