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uvisor.c revision 1.21
      1 /*	$NetBSD: uvisor.c,v 1.21 2003/08/03 21:59:26 nathanw 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 (at) 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 1.21 2003/08/03 21:59:26 nathanw 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		0x44
    121 
    122 struct uvisor_palm_connection_info {
    123 	uByte	num_ports;
    124 	uByte	endpoint_numbers_different;
    125 	uWord	reserved1;
    126 	struct {
    127 		uDWord	port_function_id;
    128 		uByte	port;
    129 		uByte	end_point_info;
    130 		uWord	reserved;
    131 	} connections[UVISOR_MAX_CONN];
    132 };
    133 
    134 
    135 
    136 #define UVISORIBUFSIZE 64
    137 #define UVISOROBUFSIZE 1024
    138 
    139 struct uvisor_softc {
    140 	USBBASEDEVICE		sc_dev;		/* base device */
    141 	usbd_device_handle	sc_udev;	/* device */
    142 	usbd_interface_handle	sc_iface;	/* interface */
    143 
    144 	device_ptr_t		sc_subdevs[UVISOR_MAX_CONN];
    145 	int			sc_numcon;
    146 
    147 	u_int16_t		sc_flags;
    148 
    149 	u_char			sc_dying;
    150 };
    151 
    152 Static usbd_status uvisor_init(struct uvisor_softc *,
    153 			       struct uvisor_connection_info *,
    154 			       struct uvisor_palm_connection_info *);
    155 
    156 Static void uvisor_close(void *, int);
    157 
    158 
    159 struct ucom_methods uvisor_methods = {
    160 	NULL,
    161 	NULL,
    162 	NULL,
    163 	NULL,
    164 	NULL,
    165 	uvisor_close,
    166 	NULL,
    167 	NULL,
    168 };
    169 
    170 struct uvisor_type {
    171 	struct usb_devno	uv_dev;
    172 	u_int16_t		uv_flags;
    173 #define PALM4	0x0001
    174 #define VISOR	0x0002
    175 
    176 };
    177 static const struct uvisor_type uvisor_devs[] = {
    178 	{{ USB_VENDOR_HANDSPRING, USB_PRODUCT_HANDSPRING_VISOR }, VISOR },
    179 	{{ USB_VENDOR_HANDSPRING, USB_PRODUCT_HANDSPRING_TREO }, PALM4 },
    180 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M500 }, PALM4 },
    181 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M505 }, PALM4 },
    182 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M515 }, PALM4 },
    183 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_I705 }, PALM4 },
    184 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M125 }, PALM4 },
    185 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_M130 }, PALM4 },
    186 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_TUNGSTEN_Z }, PALM4 },
    187 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_TUNGSTEN_T }, PALM4 },
    188 	{{ USB_VENDOR_PALM, USB_PRODUCT_PALM_ZIRE }, PALM4 },
    189 	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_40 }, PALM4 },
    190 	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_41 }, PALM4 },
    191 	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_S360 }, PALM4 },
    192 	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_NX60 }, PALM4 },
    193 /*	{{ USB_VENDOR_SONY, USB_PRODUCT_SONY_CLIE_25 }, PALM4 },*/
    194 };
    195 #define uvisor_lookup(v, p) ((struct uvisor_type *)usb_lookup(uvisor_devs, v, p))
    196 
    197 USB_DECLARE_DRIVER(uvisor);
    198 
    199 USB_MATCH(uvisor)
    200 {
    201 	USB_MATCH_START(uvisor, uaa);
    202 
    203 	if (uaa->iface != NULL)
    204 		return (UMATCH_NONE);
    205 
    206 	DPRINTFN(20,("uvisor: vendor=0x%x, product=0x%x\n",
    207 		     uaa->vendor, uaa->product));
    208 
    209 	return (uvisor_lookup(uaa->vendor, uaa->product) != NULL ?
    210 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    211 }
    212 
    213 USB_ATTACH(uvisor)
    214 {
    215 	USB_ATTACH_START(uvisor, sc, uaa);
    216 	usbd_device_handle dev = uaa->device;
    217 	usbd_interface_handle iface;
    218 	usb_interface_descriptor_t *id;
    219 	struct uvisor_connection_info coninfo;
    220 	struct uvisor_palm_connection_info palmconinfo;
    221 	usb_endpoint_descriptor_t *ed;
    222 	char devinfo[1024];
    223 	char *devname = USBDEVNAME(sc->sc_dev);
    224 	int i, j, hasin, hasout, port;
    225 	usbd_status err;
    226 	struct ucom_attach_args uca;
    227 
    228 	DPRINTFN(10,("\nuvisor_attach: sc=%p\n", sc));
    229 
    230 	/* Move the device into the configured state. */
    231 	err = usbd_set_config_index(dev, UVISOR_CONFIG_INDEX, 1);
    232 	if (err) {
    233 		printf("\n%s: failed to set configuration, err=%s\n",
    234 		       devname, usbd_errstr(err));
    235 		goto bad;
    236 	}
    237 
    238 	err = usbd_device2interface_handle(dev, UVISOR_IFACE_INDEX, &iface);
    239 	if (err) {
    240 		printf("\n%s: failed to get interface, err=%s\n",
    241 		       devname, usbd_errstr(err));
    242 		goto bad;
    243 	}
    244 
    245 	usbd_devinfo(dev, 0, devinfo);
    246 	USB_ATTACH_SETUP;
    247 	printf("%s: %s\n", devname, devinfo);
    248 
    249 	sc->sc_flags = uvisor_lookup(uaa->vendor, uaa->product)->uv_flags;
    250 
    251 	if ((sc->sc_flags & (VISOR | PALM4)) == 0) {
    252 		printf("%s: init failed, device type is neither visor nor palm\n",
    253 		    USBDEVNAME(sc->sc_dev));
    254 		goto bad;
    255 	}
    256 
    257 	id = usbd_get_interface_descriptor(iface);
    258 
    259 	sc->sc_udev = dev;
    260 	sc->sc_iface = iface;
    261 
    262 	uca.ibufsize = UVISORIBUFSIZE;
    263 	uca.obufsize = UVISOROBUFSIZE;
    264 	uca.ibufsizepad = UVISORIBUFSIZE;
    265 	uca.opkthdrlen = 0;
    266 	uca.device = dev;
    267 	uca.iface = iface;
    268 	uca.methods = &uvisor_methods;
    269 	uca.arg = sc;
    270 
    271 	err = uvisor_init(sc, &coninfo, &palmconinfo);
    272 	if (err) {
    273 		printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev),
    274 		       usbd_errstr(err));
    275 		goto bad;
    276 	}
    277 
    278 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    279 			   USBDEV(sc->sc_dev));
    280 
    281 	if (sc->sc_flags & VISOR) {
    282 		sc->sc_numcon = UGETW(coninfo.num_ports);
    283 		if (sc->sc_numcon > UVISOR_MAX_CONN)
    284 			sc->sc_numcon = UVISOR_MAX_CONN;
    285 
    286 		/* Attach a ucom for each connection. */
    287 		for (i = 0; i < sc->sc_numcon; ++i) {
    288 			switch (coninfo.connections[i].port_function_id) {
    289 			case UVISOR_FUNCTION_GENERIC:
    290 				uca.info = "Generic";
    291 				break;
    292 			case UVISOR_FUNCTION_DEBUGGER:
    293 				uca.info = "Debugger";
    294 				break;
    295 			case UVISOR_FUNCTION_HOTSYNC:
    296 				uca.info = "HotSync";
    297 				break;
    298 			case UVISOR_FUNCTION_REMOTE_FILE_SYS:
    299 				uca.info = "Remote File System";
    300 				break;
    301 			default:
    302 				uca.info = "unknown";
    303 				break;
    304 			}
    305 			port = coninfo.connections[i].port;
    306 			uca.portno = port;
    307 			uca.bulkin = port | UE_DIR_IN;
    308 			uca.bulkout = port | UE_DIR_OUT;
    309 			/* Verify that endpoints exist. */
    310 			hasin = 0;
    311 			hasout = 0;
    312 			for (j = 0; j < id->bNumEndpoints; j++) {
    313 				ed = usbd_interface2endpoint_descriptor(iface, j);
    314 				if (ed == NULL)
    315 					break;
    316 				if (UE_GET_ADDR(ed->bEndpointAddress) == port &&
    317 				    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    318 					if (UE_GET_DIR(ed->bEndpointAddress)
    319 					    == UE_DIR_IN)
    320 						hasin++;
    321 					else
    322 						hasout++;
    323 				}
    324 			}
    325 			if (hasin == 1 && hasout == 1)
    326 				sc->sc_subdevs[i] = config_found_sm(self, &uca,
    327 				    ucomprint, ucomsubmatch);
    328 			else
    329 				printf("%s: no proper endpoints for port %d (%d,%d)\n",
    330 				    USBDEVNAME(sc->sc_dev), port, hasin, hasout);
    331 		}
    332 
    333 	} else {
    334 		sc->sc_numcon = palmconinfo.num_ports;
    335 		if (sc->sc_numcon > UVISOR_MAX_CONN)
    336 			sc->sc_numcon = UVISOR_MAX_CONN;
    337 
    338 		/* Attach a ucom for each connection. */
    339 		for (i = 0; i < sc->sc_numcon; ++i) {
    340 			/*
    341 			 * XXX this should copy out 4-char string from the
    342 			 * XXX port_function_id, but where would the string go?
    343 			 * XXX uca.info is a const char *, not an array.
    344 			 */
    345 			uca.info = "sync";
    346 			uca.portno = i;
    347 			if (palmconinfo.endpoint_numbers_different) {
    348 				port = palmconinfo.connections[i].end_point_info;
    349 				uca.bulkin = (port >> 4) | UE_DIR_IN;
    350 				uca.bulkout = (port & 0xf) | UE_DIR_OUT;
    351 			} else {
    352 				port = palmconinfo.connections[i].port;
    353 				uca.bulkin = port | UE_DIR_IN;
    354 				uca.bulkout = port | UE_DIR_OUT;
    355 			}
    356 			sc->sc_subdevs[i] = config_found_sm(self, &uca,
    357 			    ucomprint, ucomsubmatch);
    358 
    359 
    360 		}
    361 	}
    362 
    363 	USB_ATTACH_SUCCESS_RETURN;
    364 
    365 bad:
    366 	DPRINTF(("uvisor_attach: ATTACH ERROR\n"));
    367 	sc->sc_dying = 1;
    368 	USB_ATTACH_ERROR_RETURN;
    369 }
    370 
    371 int
    372 uvisor_activate(device_ptr_t self, enum devact act)
    373 {
    374 	struct uvisor_softc *sc = (struct uvisor_softc *)self;
    375 	int rv = 0;
    376 	int i;
    377 
    378 	switch (act) {
    379 	case DVACT_ACTIVATE:
    380 		return (EOPNOTSUPP);
    381 		break;
    382 
    383 	case DVACT_DEACTIVATE:
    384 		for (i = 0; i < sc->sc_numcon; i++)
    385 			if (sc->sc_subdevs[i] != NULL)
    386 				rv = config_deactivate(sc->sc_subdevs[i]);
    387 		sc->sc_dying = 1;
    388 		break;
    389 	}
    390 	return (rv);
    391 }
    392 
    393 int
    394 uvisor_detach(device_ptr_t self, int flags)
    395 {
    396 	struct uvisor_softc *sc = (struct uvisor_softc *)self;
    397 	int rv = 0;
    398 	int i;
    399 
    400 	DPRINTF(("uvisor_detach: sc=%p flags=%d\n", sc, flags));
    401 	sc->sc_dying = 1;
    402 	for (i = 0; i < sc->sc_numcon; i++) {
    403 		if (sc->sc_subdevs[i] != NULL) {
    404 			rv |= config_detach(sc->sc_subdevs[i], flags);
    405 			sc->sc_subdevs[i] = NULL;
    406 		}
    407 	}
    408 
    409 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    410 			   USBDEV(sc->sc_dev));
    411 
    412 
    413 	return (rv);
    414 }
    415 
    416 usbd_status
    417 uvisor_init(struct uvisor_softc *sc, struct uvisor_connection_info *ci,
    418     struct uvisor_palm_connection_info *cpi)
    419 {
    420 	usbd_status err;
    421 	usb_device_request_t req;
    422 	int actlen;
    423 	uWord avail;
    424 
    425 	if (sc->sc_flags & VISOR) {
    426 		DPRINTF(("uvisor_init: getting Visor connection info\n"));
    427 		req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
    428 		req.bRequest = UVISOR_GET_CONNECTION_INFORMATION;
    429 		USETW(req.wValue, 0);
    430 		USETW(req.wIndex, 0);
    431 		USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
    432 		err = usbd_do_request_flags(sc->sc_udev, &req, ci,
    433 		    USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
    434 		if (err)
    435 			return (err);
    436 	}
    437 
    438 	if (sc->sc_flags & PALM4) {
    439 		DPRINTF(("uvisor_init: getting Palm connection info\n"));
    440 		req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
    441 		req.bRequest = UVISOR_GET_PALM_INFORMATION;
    442 		USETW(req.wValue, 0);
    443 		USETW(req.wIndex, 0);
    444 		USETW(req.wLength, UVISOR_GET_PALM_INFORMATION_LEN);
    445 		err = usbd_do_request_flags(sc->sc_udev, &req, cpi,
    446 		    USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
    447 		if (err)
    448 			return (err);
    449 	}
    450 
    451 	DPRINTF(("uvisor_init: getting available bytes\n"));
    452 	req.bmRequestType = UT_READ_VENDOR_ENDPOINT;
    453 	req.bRequest = UVISOR_REQUEST_BYTES_AVAILABLE;
    454 	USETW(req.wValue, 0);
    455 	USETW(req.wIndex, 5);
    456 	USETW(req.wLength, sizeof avail);
    457 	err = usbd_do_request(sc->sc_udev, &req, &avail);
    458 	if (err)
    459 		return (err);
    460 	DPRINTF(("uvisor_init: avail=%d\n", UGETW(avail)));
    461 
    462 	DPRINTF(("uvisor_init: done\n"));
    463 	return (err);
    464 }
    465 
    466 void
    467 uvisor_close(void *addr, int portno)
    468 {
    469 	struct uvisor_softc *sc = addr;
    470 	usb_device_request_t req;
    471 	struct uvisor_connection_info coninfo; /* XXX ? */
    472 	int actlen;
    473 
    474 	if (sc->sc_dying)
    475 		return;
    476 
    477 	req.bmRequestType = UT_READ_VENDOR_ENDPOINT; /* XXX read? */
    478 	req.bRequest = UVISOR_CLOSE_NOTIFICATION;
    479 	USETW(req.wValue, 0);
    480 	USETW(req.wIndex, 0);
    481 	USETW(req.wLength, UVISOR_CONNECTION_INFO_SIZE);
    482 	(void)usbd_do_request_flags(sc->sc_udev, &req, &coninfo,
    483 		  USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
    484 }
    485