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usbcore: refine warm reset logic
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / visor.c
blob1c11959a7d588f8b25e03013b83a4c3008b452be
1 /*
2 * USB HandSpring Visor, Palm m50x, and Sony Clie driver
3 * (supports all of the Palm OS USB devices)
4 *
5 * Copyright (C) 1999 - 2004
6 * Greg Kroah-Hartman (greg@kroah.com)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
11 *
12 * See Documentation/usb/usb-serial.txt for more information on using this
13 * driver
14 *
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/errno.h>
19 #include <linux/init.h>
20 #include <linux/slab.h>
21 #include <linux/tty.h>
22 #include <linux/tty_driver.h>
23 #include <linux/tty_flip.h>
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
26 #include <linux/spinlock.h>
27 #include <linux/uaccess.h>
28 #include <linux/usb.h>
29 #include <linux/usb/serial.h>
30 #include <linux/usb/cdc.h>
31 #include "visor.h"
32
33 /*
34 * Version Information
35 */
36 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
37 #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
38
39 /* function prototypes for a handspring visor */
40 static int visor_open(struct tty_struct *tty, struct usb_serial_port *port);
41 static void visor_close(struct usb_serial_port *port);
42 static int visor_probe(struct usb_serial *serial,
43 const struct usb_device_id *id);
44 static int visor_calc_num_ports(struct usb_serial *serial);
45 static void visor_read_int_callback(struct urb *urb);
46 static int clie_3_5_startup(struct usb_serial *serial);
47 static int treo_attach(struct usb_serial *serial);
48 static int clie_5_attach(struct usb_serial *serial);
49 static int palm_os_3_probe(struct usb_serial *serial,
50 const struct usb_device_id *id);
51 static int palm_os_4_probe(struct usb_serial *serial,
52 const struct usb_device_id *id);
53
54 /* Parameters that may be passed into the module. */
55 static int debug;
56 static __u16 vendor;
57 static __u16 product;
58
59 static struct usb_device_id id_table [] = {
60 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
61 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
62 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
63 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
64 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
65 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
66 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
67 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
68 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
69 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
70 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
71 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
72 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
73 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
74 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
75 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
76 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
77 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
78 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
79 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
80 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
81 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
82 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
83 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
84 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
85 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
86 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
87 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
88 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
89 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
90 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
91 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
92 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
93 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
94 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
95 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
96 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
97 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
98 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
99 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
100 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
101 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
102 { USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
103 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
104 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
105 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
106 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
107 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
108 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
109 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
110 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
111 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
112 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
113 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
114 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
115 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
116 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
117 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
118 { }, /* optional parameter entry */
119 { } /* Terminating entry */
120 };
121
122 static struct usb_device_id clie_id_5_table [] = {
123 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
124 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
125 { }, /* optional parameter entry */
126 { } /* Terminating entry */
127 };
128
129 static struct usb_device_id clie_id_3_5_table [] = {
130 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
131 { } /* Terminating entry */
132 };
133
134 static struct usb_device_id id_table_combined [] = {
135 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
136 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
137 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
138 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
139 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
140 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
141 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
142 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
143 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
144 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
145 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
146 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
147 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
148 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
149 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
150 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
151 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
152 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
153 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
154 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
155 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
156 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
157 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
158 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
159 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
160 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
161 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
162 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
163 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
164 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
165 { }, /* optional parameter entry */
166 { } /* Terminating entry */
167 };
168
169 MODULE_DEVICE_TABLE(usb, id_table_combined);
170
171 static struct usb_driver visor_driver = {
172 .name = "visor",
173 .probe = usb_serial_probe,
174 .disconnect = usb_serial_disconnect,
175 .id_table = id_table_combined,
176 .no_dynamic_id = 1,
177 };
178
179 /* All of the device info needed for the Handspring Visor,
180 and Palm 4.0 devices */
181 static struct usb_serial_driver handspring_device = {
182 .driver = {
183 .owner = THIS_MODULE,
184 .name = "visor",
185 },
186 .description = "Handspring Visor / Palm OS",
187 .usb_driver = &visor_driver,
188 .id_table = id_table,
189 .num_ports = 2,
190 .bulk_out_size = 256,
191 .open = visor_open,
192 .close = visor_close,
193 .throttle = usb_serial_generic_throttle,
194 .unthrottle = usb_serial_generic_unthrottle,
195 .attach = treo_attach,
196 .probe = visor_probe,
197 .calc_num_ports = visor_calc_num_ports,
198 .read_int_callback = visor_read_int_callback,
199 };
200
201 /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
202 static struct usb_serial_driver clie_5_device = {
203 .driver = {
204 .owner = THIS_MODULE,
205 .name = "clie_5",
206 },
207 .description = "Sony Clie 5.0",
208 .usb_driver = &visor_driver,
209 .id_table = clie_id_5_table,
210 .num_ports = 2,
211 .bulk_out_size = 256,
212 .open = visor_open,
213 .close = visor_close,
214 .throttle = usb_serial_generic_throttle,
215 .unthrottle = usb_serial_generic_unthrottle,
216 .attach = clie_5_attach,
217 .probe = visor_probe,
218 .calc_num_ports = visor_calc_num_ports,
219 .read_int_callback = visor_read_int_callback,
220 };
221
222 /* device info for the Sony Clie OS version 3.5 */
223 static struct usb_serial_driver clie_3_5_device = {
224 .driver = {
225 .owner = THIS_MODULE,
226 .name = "clie_3.5",
227 },
228 .description = "Sony Clie 3.5",
229 .usb_driver = &visor_driver,
230 .id_table = clie_id_3_5_table,
231 .num_ports = 1,
232 .bulk_out_size = 256,
233 .open = visor_open,
234 .close = visor_close,
235 .throttle = usb_serial_generic_throttle,
236 .unthrottle = usb_serial_generic_unthrottle,
237 .attach = clie_3_5_startup,
238 };
239
240 /******************************************************************************
241 * Handspring Visor specific driver functions
242 ******************************************************************************/
243 static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
244 {
245 int result = 0;
246
247 dbg("%s - port %d", __func__, port->number);
248
249 if (!port->read_urb) {
250 /* this is needed for some brain dead Sony devices */
251 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
252 return -ENODEV;
253 }
254
255 /* Start reading from the device */
256 result = usb_serial_generic_open(tty, port);
257 if (result)
258 goto exit;
259
260 if (port->interrupt_in_urb) {
261 dbg("%s - adding interrupt input for treo", __func__);
262 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
263 if (result)
264 dev_err(&port->dev,
265 "%s - failed submitting interrupt urb, error %d\n",
266 __func__, result);
267 }
268 exit:
269 return result;
270 }
271
272
273 static void visor_close(struct usb_serial_port *port)
274 {
275 unsigned char *transfer_buffer;
276
277 dbg("%s - port %d", __func__, port->number);
278
279 /* shutdown our urbs */
280 usb_serial_generic_close(port);
281 usb_kill_urb(port->interrupt_in_urb);
282
283 mutex_lock(&port->serial->disc_mutex);
284 if (!port->serial->disconnected) {
285 /* Try to send shutdown message, unless the device is gone */
286 transfer_buffer = kmalloc(0x12, GFP_KERNEL);
287 if (transfer_buffer) {
288 usb_control_msg(port->serial->dev,
289 usb_rcvctrlpipe(port->serial->dev, 0),
290 VISOR_CLOSE_NOTIFICATION, 0xc2,
291 0x0000, 0x0000,
292 transfer_buffer, 0x12, 300);
293 kfree(transfer_buffer);
294 }
295 }
296 mutex_unlock(&port->serial->disc_mutex);
297 }
298
299 static void visor_read_int_callback(struct urb *urb)
300 {
301 struct usb_serial_port *port = urb->context;
302 int status = urb->status;
303 int result;
304
305 switch (status) {
306 case 0:
307 /* success */
308 break;
309 case -ECONNRESET:
310 case -ENOENT:
311 case -ESHUTDOWN:
312 /* this urb is terminated, clean up */
313 dbg("%s - urb shutting down with status: %d",
314 __func__, status);
315 return;
316 default:
317 dbg("%s - nonzero urb status received: %d",
318 __func__, status);
319 goto exit;
320 }
321
322 /*
323 * This information is still unknown what it can be used for.
324 * If anyone has an idea, please let the author know...
325 *
326 * Rumor has it this endpoint is used to notify when data
327 * is ready to be read from the bulk ones.
328 */
329 usb_serial_debug_data(debug, &port->dev, __func__,
330 urb->actual_length, urb->transfer_buffer);
331
332 exit:
333 result = usb_submit_urb(urb, GFP_ATOMIC);
334 if (result)
335 dev_err(&urb->dev->dev,
336 "%s - Error %d submitting interrupt urb\n",
337 __func__, result);
338 }
339
340 static int palm_os_3_probe(struct usb_serial *serial,
341 const struct usb_device_id *id)
342 {
343 struct device *dev = &serial->dev->dev;
344 struct visor_connection_info *connection_info;
345 unsigned char *transfer_buffer;
346 char *string;
347 int retval = 0;
348 int i;
349 int num_ports = 0;
350
351 dbg("%s", __func__);
352
353 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
354 if (!transfer_buffer) {
355 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
356 sizeof(*connection_info));
357 return -ENOMEM;
358 }
359
360 /* send a get connection info request */
361 retval = usb_control_msg(serial->dev,
362 usb_rcvctrlpipe(serial->dev, 0),
363 VISOR_GET_CONNECTION_INFORMATION,
364 0xc2, 0x0000, 0x0000, transfer_buffer,
365 sizeof(*connection_info), 300);
366 if (retval < 0) {
367 dev_err(dev, "%s - error %d getting connection information\n",
368 __func__, retval);
369 goto exit;
370 }
371
372 if (retval == sizeof(*connection_info)) {
373 connection_info = (struct visor_connection_info *)
374 transfer_buffer;
375
376 num_ports = le16_to_cpu(connection_info->num_ports);
377 for (i = 0; i < num_ports; ++i) {
378 switch (
379 connection_info->connections[i].port_function_id) {
380 case VISOR_FUNCTION_GENERIC:
381 string = "Generic";
382 break;
383 case VISOR_FUNCTION_DEBUGGER:
384 string = "Debugger";
385 break;
386 case VISOR_FUNCTION_HOTSYNC:
387 string = "HotSync";
388 break;
389 case VISOR_FUNCTION_CONSOLE:
390 string = "Console";
391 break;
392 case VISOR_FUNCTION_REMOTE_FILE_SYS:
393 string = "Remote File System";
394 break;
395 default:
396 string = "unknown";
397 break;
398 }
399 dev_info(dev, "%s: port %d, is for %s use\n",
400 serial->type->description,
401 connection_info->connections[i].port, string);
402 }
403 }
404 /*
405 * Handle devices that report invalid stuff here.
406 */
407 if (num_ports == 0 || num_ports > 2) {
408 dev_warn(dev, "%s: No valid connect info available\n",
409 serial->type->description);
410 num_ports = 2;
411 }
412
413 dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
414 num_ports);
415
416 /*
417 * save off our num_ports info so that we can use it in the
418 * calc_num_ports callback
419 */
420 usb_set_serial_data(serial, (void *)(long)num_ports);
421
422 /* ask for the number of bytes available, but ignore the
423 response as it is broken */
424 retval = usb_control_msg(serial->dev,
425 usb_rcvctrlpipe(serial->dev, 0),
426 VISOR_REQUEST_BYTES_AVAILABLE,
427 0xc2, 0x0000, 0x0005, transfer_buffer,
428 0x02, 300);
429 if (retval < 0)
430 dev_err(dev, "%s - error %d getting bytes available request\n",
431 __func__, retval);
432 retval = 0;
433
434 exit:
435 kfree(transfer_buffer);
436
437 return retval;
438 }
439
440 static int palm_os_4_probe(struct usb_serial *serial,
441 const struct usb_device_id *id)
442 {
443 struct device *dev = &serial->dev->dev;
444 struct palm_ext_connection_info *connection_info;
445 unsigned char *transfer_buffer;
446 int retval;
447
448 dbg("%s", __func__);
449
450 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
451 if (!transfer_buffer) {
452 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
453 sizeof(*connection_info));
454 return -ENOMEM;
455 }
456
457 retval = usb_control_msg(serial->dev,
458 usb_rcvctrlpipe(serial->dev, 0),
459 PALM_GET_EXT_CONNECTION_INFORMATION,
460 0xc2, 0x0000, 0x0000, transfer_buffer,
461 sizeof(*connection_info), 300);
462 if (retval < 0)
463 dev_err(dev, "%s - error %d getting connection info\n",
464 __func__, retval);
465 else
466 usb_serial_debug_data(debug, &serial->dev->dev, __func__,
467 retval, transfer_buffer);
468
469 kfree(transfer_buffer);
470 return 0;
471 }
472
473
474 static int visor_probe(struct usb_serial *serial,
475 const struct usb_device_id *id)
476 {
477 int retval = 0;
478 int (*startup)(struct usb_serial *serial,
479 const struct usb_device_id *id);
480
481 dbg("%s", __func__);
482
483 /*
484 * some Samsung Android phones in modem mode have the same ID
485 * as SPH-I500, but they are ACM devices, so dont bind to them
486 */
487 if (id->idVendor == SAMSUNG_VENDOR_ID &&
488 id->idProduct == SAMSUNG_SPH_I500_ID &&
489 serial->dev->descriptor.bDeviceClass == USB_CLASS_COMM &&
490 serial->dev->descriptor.bDeviceSubClass ==
491 USB_CDC_SUBCLASS_ACM)
492 return -ENODEV;
493
494 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
495 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
496 serial->dev->actconfig->desc.bConfigurationValue);
497 return -ENODEV;
498 }
499
500 if (id->driver_info) {
501 startup = (void *)id->driver_info;
502 retval = startup(serial, id);
503 }
504
505 return retval;
506 }
507
508 static int visor_calc_num_ports(struct usb_serial *serial)
509 {
510 int num_ports = (int)(long)(usb_get_serial_data(serial));
511
512 if (num_ports)
513 usb_set_serial_data(serial, NULL);
514
515 return num_ports;
516 }
517
518 static int clie_3_5_startup(struct usb_serial *serial)
519 {
520 struct device *dev = &serial->dev->dev;
521 int result;
522 u8 *data;
523
524 dbg("%s", __func__);
525
526 data = kmalloc(1, GFP_KERNEL);
527 if (!data)
528 return -ENOMEM;
529
530 /*
531 * Note that PEG-300 series devices expect the following two calls.
532 */
533
534 /* get the config number */
535 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
536 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
537 0, 0, data, 1, 3000);
538 if (result < 0) {
539 dev_err(dev, "%s: get config number failed: %d\n",
540 __func__, result);
541 goto out;
542 }
543 if (result != 1) {
544 dev_err(dev, "%s: get config number bad return length: %d\n",
545 __func__, result);
546 result = -EIO;
547 goto out;
548 }
549
550 /* get the interface number */
551 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
552 USB_REQ_GET_INTERFACE,
553 USB_DIR_IN | USB_RECIP_INTERFACE,
554 0, 0, data, 1, 3000);
555 if (result < 0) {
556 dev_err(dev, "%s: get interface number failed: %d\n",
557 __func__, result);
558 goto out;
559 }
560 if (result != 1) {
561 dev_err(dev,
562 "%s: get interface number bad return length: %d\n",
563 __func__, result);
564 result = -EIO;
565 goto out;
566 }
567
568 result = 0;
569 out:
570 kfree(data);
571
572 return result;
573 }
574
575 static int treo_attach(struct usb_serial *serial)
576 {
577 struct usb_serial_port *swap_port;
578
579 /* Only do this endpoint hack for the Handspring devices with
580 * interrupt in endpoints, which for now are the Treo devices. */
581 if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
582 == HANDSPRING_VENDOR_ID) ||
583 (le16_to_cpu(serial->dev->descriptor.idVendor)
584 == KYOCERA_VENDOR_ID)) ||
585 (serial->num_interrupt_in == 0))
586 return 0;
587
588 dbg("%s", __func__);
589
590 /*
591 * It appears that Treos and Kyoceras want to use the
592 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
593 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
594 * Note that swapping the bulk out endpoints would break lots of
595 * apps that want to communicate on the second port.
596 */
597 #define COPY_PORT(dest, src) \
598 do { \
599 dest->read_urb = src->read_urb; \
600 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
601 dest->bulk_in_buffer = src->bulk_in_buffer; \
602 dest->interrupt_in_urb = src->interrupt_in_urb; \
603 dest->interrupt_in_endpointAddress = \
604 src->interrupt_in_endpointAddress;\
605 dest->interrupt_in_buffer = src->interrupt_in_buffer; \
606 } while (0);
607
608 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
609 if (!swap_port)
610 return -ENOMEM;
611 COPY_PORT(swap_port, serial->port[0]);
612 COPY_PORT(serial->port[0], serial->port[1]);
613 COPY_PORT(serial->port[1], swap_port);
614 kfree(swap_port);
615
616 return 0;
617 }
618
619 static int clie_5_attach(struct usb_serial *serial)
620 {
621 struct usb_serial_port *port;
622 unsigned int pipe;
623 int j;
624
625 dbg("%s", __func__);
626
627 /* TH55 registers 2 ports.
628 Communication in from the UX50/TH55 uses bulk_in_endpointAddress
629 from port 0. Communication out to the UX50/TH55 uses
630 bulk_out_endpointAddress from port 1
631
632 Lets do a quick and dirty mapping
633 */
634
635 /* some sanity check */
636 if (serial->num_ports < 2)
637 return -1;
638
639 /* port 0 now uses the modified endpoint Address */
640 port = serial->port[0];
641 port->bulk_out_endpointAddress =
642 serial->port[1]->bulk_out_endpointAddress;
643
644 pipe = usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress);
645 for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j)
646 port->write_urbs[j]->pipe = pipe;
647
648 return 0;
649 }
650
651 static int __init visor_init(void)
652 {
653 int i, retval;
654 /* Only if parameters were passed to us */
655 if (vendor > 0 && product > 0) {
656 struct usb_device_id usb_dev_temp[] = {
657 {
658 USB_DEVICE(vendor, product),
659 .driver_info =
660 (kernel_ulong_t) &palm_os_4_probe
661 }
662 };
663
664 /* Find the last entry in id_table */
665 for (i = 0;; i++) {
666 if (id_table[i].idVendor == 0) {
667 id_table[i] = usb_dev_temp[0];
668 break;
669 }
670 }
671 /* Find the last entry in id_table_combined */
672 for (i = 0;; i++) {
673 if (id_table_combined[i].idVendor == 0) {
674 id_table_combined[i] = usb_dev_temp[0];
675 break;
676 }
677 }
678 printk(KERN_INFO KBUILD_MODNAME
679 ": Untested USB device specified at time of module insertion\n");
680 printk(KERN_INFO KBUILD_MODNAME
681 ": Warning: This is not guaranteed to work\n");
682 printk(KERN_INFO KBUILD_MODNAME
683 ": Using a newer kernel is preferred to this method\n");
684 printk(KERN_INFO KBUILD_MODNAME
685 ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n",
686 vendor, product);
687 }
688 retval = usb_serial_register(&handspring_device);
689 if (retval)
690 goto failed_handspring_register;
691 retval = usb_serial_register(&clie_3_5_device);
692 if (retval)
693 goto failed_clie_3_5_register;
694 retval = usb_serial_register(&clie_5_device);
695 if (retval)
696 goto failed_clie_5_register;
697 retval = usb_register(&visor_driver);
698 if (retval)
699 goto failed_usb_register;
700 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
701
702 return 0;
703 failed_usb_register:
704 usb_serial_deregister(&clie_5_device);
705 failed_clie_5_register:
706 usb_serial_deregister(&clie_3_5_device);
707 failed_clie_3_5_register:
708 usb_serial_deregister(&handspring_device);
709 failed_handspring_register:
710 return retval;
711 }
712
713
714 static void __exit visor_exit (void)
715 {
716 usb_deregister(&visor_driver);
717 usb_serial_deregister(&handspring_device);
718 usb_serial_deregister(&clie_3_5_device);
719 usb_serial_deregister(&clie_5_device);
720 }
721
722
723 module_init(visor_init);
724 module_exit(visor_exit);
725
726 MODULE_AUTHOR(DRIVER_AUTHOR);
727 MODULE_DESCRIPTION(DRIVER_DESC);
728 MODULE_LICENSE("GPL");
729
730 module_param(debug, bool, S_IRUGO | S_IWUSR);
731 MODULE_PARM_DESC(debug, "Debug enabled or not");
732
733 module_param(vendor, ushort, 0);
734 MODULE_PARM_DESC(vendor, "User specified vendor ID");
735 module_param(product, ushort, 0);
736 MODULE_PARM_DESC(product, "User specified product ID");
737
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree