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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
[deliverable/linux.git] / drivers / usb / serial / visor.c
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 modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License.
11 *
12 * See Documentation/usb/usb-serial.txt for more information on using this driver
13 *
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/errno.h>
18 #include <linux/init.h>
19 #include <linux/slab.h>
20 #include <linux/tty.h>
21 #include <linux/tty_driver.h>
22 #include <linux/tty_flip.h>
23 #include <linux/module.h>
24 #include <linux/moduleparam.h>
25 #include <linux/spinlock.h>
26 #include <asm/uaccess.h>
27 #include <linux/usb.h>
28 #include "usb-serial.h"
29 #include "visor.h"
30
31 /*
32 * Version Information
33 */
34 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
35 #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
36
37 /* function prototypes for a handspring visor */
38 static int visor_open (struct usb_serial_port *port, struct file *filp);
39 static void visor_close (struct usb_serial_port *port, struct file *filp);
40 static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count);
41 static int visor_write_room (struct usb_serial_port *port);
42 static int visor_chars_in_buffer (struct usb_serial_port *port);
43 static void visor_throttle (struct usb_serial_port *port);
44 static void visor_unthrottle (struct usb_serial_port *port);
45 static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id);
46 static int visor_calc_num_ports(struct usb_serial *serial);
47 static void visor_shutdown (struct usb_serial *serial);
48 static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
49 static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios);
50 static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
51 static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
52 static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs);
53 static int clie_3_5_startup (struct usb_serial *serial);
54 static int treo_attach (struct usb_serial *serial);
55 static int clie_5_attach (struct usb_serial *serial);
56 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);
57 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);
58
59 /* Parameters that may be passed into the module. */
60 static int debug;
61 static __u16 vendor;
62 static __u16 product;
63
64 static struct usb_device_id id_table [] = {
65 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
66 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
67 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
68 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
69 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
70 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
71 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
72 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
73 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
74 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
75 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
76 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
77 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
78 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
79 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
80 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
81 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
82 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
83 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
84 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
85 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
86 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
87 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
88 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
89 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
90 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
91 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
92 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
93 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID),
94 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
95 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
96 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
97 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
98 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
99 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
100 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
101 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
102 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
103 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
104 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
105 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
106 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
107 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
108 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
109 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
110 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
111 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
112 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
113 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
114 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
115 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
116 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
117 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
118 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
119 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
120 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
121 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
122 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
123 { }, /* optional parameter entry */
124 { } /* Terminating entry */
125 };
126
127 static struct usb_device_id clie_id_5_table [] = {
128 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
129 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
130 { }, /* optional parameter entry */
131 { } /* Terminating entry */
132 };
133
134 static struct usb_device_id clie_id_3_5_table [] = {
135 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
136 { } /* Terminating entry */
137 };
138
139 static struct usb_device_id id_table_combined [] = {
140 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
141 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
142 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
143 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
144 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
145 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
146 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
147 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
148 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
149 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
150 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
151 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
152 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
153 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
154 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) },
155 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
156 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
157 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
158 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
159 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
160 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
161 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
162 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
163 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
164 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
165 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
166 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
167 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
168 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
169 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
170 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
171 { }, /* optional parameter entry */
172 { } /* Terminating entry */
173 };
174
175 MODULE_DEVICE_TABLE (usb, id_table_combined);
176
177 static struct usb_driver visor_driver = {
178 .name = "visor",
179 .probe = usb_serial_probe,
180 .disconnect = usb_serial_disconnect,
181 .id_table = id_table_combined,
182 .no_dynamic_id = 1,
183 };
184
185 /* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
186 static struct usb_serial_driver handspring_device = {
187 .driver = {
188 .owner = THIS_MODULE,
189 .name = "visor",
190 },
191 .description = "Handspring Visor / Palm OS",
192 .id_table = id_table,
193 .num_interrupt_in = NUM_DONT_CARE,
194 .num_bulk_in = 2,
195 .num_bulk_out = 2,
196 .num_ports = 2,
197 .open = visor_open,
198 .close = visor_close,
199 .throttle = visor_throttle,
200 .unthrottle = visor_unthrottle,
201 .attach = treo_attach,
202 .probe = visor_probe,
203 .calc_num_ports = visor_calc_num_ports,
204 .shutdown = visor_shutdown,
205 .ioctl = visor_ioctl,
206 .set_termios = visor_set_termios,
207 .write = visor_write,
208 .write_room = visor_write_room,
209 .chars_in_buffer = visor_chars_in_buffer,
210 .write_bulk_callback = visor_write_bulk_callback,
211 .read_bulk_callback = visor_read_bulk_callback,
212 .read_int_callback = visor_read_int_callback,
213 };
214
215 /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
216 static struct usb_serial_driver clie_5_device = {
217 .driver = {
218 .owner = THIS_MODULE,
219 .name = "clie_5",
220 },
221 .description = "Sony Clie 5.0",
222 .id_table = clie_id_5_table,
223 .num_interrupt_in = NUM_DONT_CARE,
224 .num_bulk_in = 2,
225 .num_bulk_out = 2,
226 .num_ports = 2,
227 .open = visor_open,
228 .close = visor_close,
229 .throttle = visor_throttle,
230 .unthrottle = visor_unthrottle,
231 .attach = clie_5_attach,
232 .probe = visor_probe,
233 .calc_num_ports = visor_calc_num_ports,
234 .shutdown = visor_shutdown,
235 .ioctl = visor_ioctl,
236 .set_termios = visor_set_termios,
237 .write = visor_write,
238 .write_room = visor_write_room,
239 .chars_in_buffer = visor_chars_in_buffer,
240 .write_bulk_callback = visor_write_bulk_callback,
241 .read_bulk_callback = visor_read_bulk_callback,
242 .read_int_callback = visor_read_int_callback,
243 };
244
245 /* device info for the Sony Clie OS version 3.5 */
246 static struct usb_serial_driver clie_3_5_device = {
247 .driver = {
248 .owner = THIS_MODULE,
249 .name = "clie_3.5",
250 },
251 .description = "Sony Clie 3.5",
252 .id_table = clie_id_3_5_table,
253 .num_interrupt_in = 0,
254 .num_bulk_in = 1,
255 .num_bulk_out = 1,
256 .num_ports = 1,
257 .open = visor_open,
258 .close = visor_close,
259 .throttle = visor_throttle,
260 .unthrottle = visor_unthrottle,
261 .attach = clie_3_5_startup,
262 .ioctl = visor_ioctl,
263 .set_termios = visor_set_termios,
264 .write = visor_write,
265 .write_room = visor_write_room,
266 .chars_in_buffer = visor_chars_in_buffer,
267 .write_bulk_callback = visor_write_bulk_callback,
268 .read_bulk_callback = visor_read_bulk_callback,
269 };
270
271 struct visor_private {
272 spinlock_t lock;
273 int bytes_in;
274 int bytes_out;
275 int outstanding_urbs;
276 int throttled;
277 };
278
279 /* number of outstanding urbs to prevent userspace DoS from happening */
280 #define URB_UPPER_LIMIT 42
281
282 static int stats;
283
284 /******************************************************************************
285 * Handspring Visor specific driver functions
286 ******************************************************************************/
287 static int visor_open (struct usb_serial_port *port, struct file *filp)
288 {
289 struct usb_serial *serial = port->serial;
290 struct visor_private *priv = usb_get_serial_port_data(port);
291 unsigned long flags;
292 int result = 0;
293
294 dbg("%s - port %d", __FUNCTION__, port->number);
295
296 if (!port->read_urb) {
297 /* this is needed for some brain dead Sony devices */
298 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
299 return -ENODEV;
300 }
301
302 spin_lock_irqsave(&priv->lock, flags);
303 priv->bytes_in = 0;
304 priv->bytes_out = 0;
305 priv->outstanding_urbs = 0;
306 priv->throttled = 0;
307 spin_unlock_irqrestore(&priv->lock, flags);
308
309 /*
310 * Force low_latency on so that our tty_push actually forces the data
311 * through, otherwise it is scheduled, and with high data rates (like
312 * with OHCI) data can get lost.
313 */
314 if (port->tty)
315 port->tty->low_latency = 1;
316
317 /* Start reading from the device */
318 usb_fill_bulk_urb (port->read_urb, serial->dev,
319 usb_rcvbulkpipe (serial->dev,
320 port->bulk_in_endpointAddress),
321 port->read_urb->transfer_buffer,
322 port->read_urb->transfer_buffer_length,
323 visor_read_bulk_callback, port);
324 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
325 if (result) {
326 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",
327 __FUNCTION__, result);
328 goto exit;
329 }
330
331 if (port->interrupt_in_urb) {
332 dbg("%s - adding interrupt input for treo", __FUNCTION__);
333 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
334 if (result)
335 dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",
336 __FUNCTION__, result);
337 }
338 exit:
339 return result;
340 }
341
342
343 static void visor_close (struct usb_serial_port *port, struct file * filp)
344 {
345 struct visor_private *priv = usb_get_serial_port_data(port);
346 unsigned char *transfer_buffer;
347
348 dbg("%s - port %d", __FUNCTION__, port->number);
349
350 /* shutdown our urbs */
351 usb_kill_urb(port->read_urb);
352 if (port->interrupt_in_urb)
353 usb_kill_urb(port->interrupt_in_urb);
354
355 /* Try to send shutdown message, if the device is gone, this will just fail. */
356 transfer_buffer = kmalloc (0x12, GFP_KERNEL);
357 if (transfer_buffer) {
358 usb_control_msg (port->serial->dev,
359 usb_rcvctrlpipe(port->serial->dev, 0),
360 VISOR_CLOSE_NOTIFICATION, 0xc2,
361 0x0000, 0x0000,
362 transfer_buffer, 0x12, 300);
363 kfree (transfer_buffer);
364 }
365
366 if (stats)
367 dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
368 priv->bytes_in, priv->bytes_out);
369 }
370
371
372 static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count)
373 {
374 struct visor_private *priv = usb_get_serial_port_data(port);
375 struct usb_serial *serial = port->serial;
376 struct urb *urb;
377 unsigned char *buffer;
378 unsigned long flags;
379 int status;
380
381 dbg("%s - port %d", __FUNCTION__, port->number);
382
383 spin_lock_irqsave(&priv->lock, flags);
384 if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
385 spin_unlock_irqrestore(&priv->lock, flags);
386 dbg("%s - write limit hit\n", __FUNCTION__);
387 return 0;
388 }
389 spin_unlock_irqrestore(&priv->lock, flags);
390
391 buffer = kmalloc (count, GFP_ATOMIC);
392 if (!buffer) {
393 dev_err(&port->dev, "out of memory\n");
394 return -ENOMEM;
395 }
396
397 urb = usb_alloc_urb(0, GFP_ATOMIC);
398 if (!urb) {
399 dev_err(&port->dev, "no more free urbs\n");
400 kfree (buffer);
401 return -ENOMEM;
402 }
403
404 memcpy (buffer, buf, count);
405
406 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
407
408 usb_fill_bulk_urb (urb, serial->dev,
409 usb_sndbulkpipe (serial->dev,
410 port->bulk_out_endpointAddress),
411 buffer, count,
412 visor_write_bulk_callback, port);
413
414 /* send it down the pipe */
415 status = usb_submit_urb(urb, GFP_ATOMIC);
416 if (status) {
417 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n",
418 __FUNCTION__, status);
419 count = status;
420 kfree (buffer);
421 } else {
422 spin_lock_irqsave(&priv->lock, flags);
423 ++priv->outstanding_urbs;
424 priv->bytes_out += count;
425 spin_unlock_irqrestore(&priv->lock, flags);
426 }
427
428 /* we are done with this urb, so let the host driver
429 * really free it when it is finished with it */
430 usb_free_urb (urb);
431
432 return count;
433 }
434
435
436 static int visor_write_room (struct usb_serial_port *port)
437 {
438 dbg("%s - port %d", __FUNCTION__, port->number);
439
440 /*
441 * We really can take anything the user throws at us
442 * but let's pick a nice big number to tell the tty
443 * layer that we have lots of free space
444 */
445 return 2048;
446 }
447
448
449 static int visor_chars_in_buffer (struct usb_serial_port *port)
450 {
451 dbg("%s - port %d", __FUNCTION__, port->number);
452
453 /*
454 * We can't really account for how much data we
455 * have sent out, but hasn't made it through to the
456 * device, so just tell the tty layer that everything
457 * is flushed.
458 */
459 return 0;
460 }
461
462
463 static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
464 {
465 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
466 struct visor_private *priv = usb_get_serial_port_data(port);
467 unsigned long flags;
468
469 /* free up the transfer buffer, as usb_free_urb() does not do this */
470 kfree (urb->transfer_buffer);
471
472 dbg("%s - port %d", __FUNCTION__, port->number);
473
474 if (urb->status)
475 dbg("%s - nonzero write bulk status received: %d",
476 __FUNCTION__, urb->status);
477
478 spin_lock_irqsave(&priv->lock, flags);
479 --priv->outstanding_urbs;
480 spin_unlock_irqrestore(&priv->lock, flags);
481
482 usb_serial_port_softint(port);
483 }
484
485
486 static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
487 {
488 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
489 struct visor_private *priv = usb_get_serial_port_data(port);
490 unsigned char *data = urb->transfer_buffer;
491 struct tty_struct *tty;
492 unsigned long flags;
493 int throttled;
494 int result;
495
496 dbg("%s - port %d", __FUNCTION__, port->number);
497
498 if (urb->status) {
499 dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
500 return;
501 }
502
503 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
504
505 tty = port->tty;
506 if (tty && urb->actual_length) {
507 tty_buffer_request_room(tty, urb->actual_length);
508 tty_insert_flip_string(tty, data, urb->actual_length);
509 tty_flip_buffer_push(tty);
510 }
511 spin_lock_irqsave(&priv->lock, flags);
512 priv->bytes_in += urb->actual_length;
513 throttled = priv->throttled;
514 spin_unlock_irqrestore(&priv->lock, flags);
515
516 /* Continue trying to always read if we should */
517 if (!throttled) {
518 usb_fill_bulk_urb (port->read_urb, port->serial->dev,
519 usb_rcvbulkpipe(port->serial->dev,
520 port->bulk_in_endpointAddress),
521 port->read_urb->transfer_buffer,
522 port->read_urb->transfer_buffer_length,
523 visor_read_bulk_callback, port);
524 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
525 if (result)
526 dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
527 }
528 return;
529 }
530
531 static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
532 {
533 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
534 int result;
535
536 switch (urb->status) {
537 case 0:
538 /* success */
539 break;
540 case -ECONNRESET:
541 case -ENOENT:
542 case -ESHUTDOWN:
543 /* this urb is terminated, clean up */
544 dbg("%s - urb shutting down with status: %d",
545 __FUNCTION__, urb->status);
546 return;
547 default:
548 dbg("%s - nonzero urb status received: %d",
549 __FUNCTION__, urb->status);
550 goto exit;
551 }
552
553 /*
554 * This information is still unknown what it can be used for.
555 * If anyone has an idea, please let the author know...
556 *
557 * Rumor has it this endpoint is used to notify when data
558 * is ready to be read from the bulk ones.
559 */
560 usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
561 urb->actual_length, urb->transfer_buffer);
562
563 exit:
564 result = usb_submit_urb (urb, GFP_ATOMIC);
565 if (result)
566 dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n",
567 __FUNCTION__, result);
568 }
569
570 static void visor_throttle (struct usb_serial_port *port)
571 {
572 struct visor_private *priv = usb_get_serial_port_data(port);
573 unsigned long flags;
574
575 dbg("%s - port %d", __FUNCTION__, port->number);
576 spin_lock_irqsave(&priv->lock, flags);
577 priv->throttled = 1;
578 spin_unlock_irqrestore(&priv->lock, flags);
579 }
580
581
582 static void visor_unthrottle (struct usb_serial_port *port)
583 {
584 struct visor_private *priv = usb_get_serial_port_data(port);
585 unsigned long flags;
586 int result;
587
588 dbg("%s - port %d", __FUNCTION__, port->number);
589 spin_lock_irqsave(&priv->lock, flags);
590 priv->throttled = 0;
591 spin_unlock_irqrestore(&priv->lock, flags);
592
593 port->read_urb->dev = port->serial->dev;
594 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
595 if (result)
596 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
597 }
598
599 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id)
600 {
601 struct device *dev = &serial->dev->dev;
602 struct visor_connection_info *connection_info;
603 unsigned char *transfer_buffer;
604 char *string;
605 int retval = 0;
606 int i;
607 int num_ports = 0;
608
609 dbg("%s", __FUNCTION__);
610
611 transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
612 if (!transfer_buffer) {
613 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
614 sizeof(*connection_info));
615 return -ENOMEM;
616 }
617
618 /* send a get connection info request */
619 retval = usb_control_msg (serial->dev,
620 usb_rcvctrlpipe(serial->dev, 0),
621 VISOR_GET_CONNECTION_INFORMATION,
622 0xc2, 0x0000, 0x0000, transfer_buffer,
623 sizeof(*connection_info), 300);
624 if (retval < 0) {
625 dev_err(dev, "%s - error %d getting connection information\n",
626 __FUNCTION__, retval);
627 goto exit;
628 }
629
630 if (retval == sizeof(*connection_info)) {
631 connection_info = (struct visor_connection_info *)transfer_buffer;
632
633 num_ports = le16_to_cpu(connection_info->num_ports);
634 for (i = 0; i < num_ports; ++i) {
635 switch (connection_info->connections[i].port_function_id) {
636 case VISOR_FUNCTION_GENERIC:
637 string = "Generic";
638 break;
639 case VISOR_FUNCTION_DEBUGGER:
640 string = "Debugger";
641 break;
642 case VISOR_FUNCTION_HOTSYNC:
643 string = "HotSync";
644 break;
645 case VISOR_FUNCTION_CONSOLE:
646 string = "Console";
647 break;
648 case VISOR_FUNCTION_REMOTE_FILE_SYS:
649 string = "Remote File System";
650 break;
651 default:
652 string = "unknown";
653 break;
654 }
655 dev_info(dev, "%s: port %d, is for %s use\n",
656 serial->type->description,
657 connection_info->connections[i].port, string);
658 }
659 }
660 /*
661 * Handle devices that report invalid stuff here.
662 */
663 if (num_ports == 0 || num_ports > 2) {
664 dev_warn (dev, "%s: No valid connect info available\n",
665 serial->type->description);
666 num_ports = 2;
667 }
668
669 dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
670 num_ports);
671
672 /*
673 * save off our num_ports info so that we can use it in the
674 * calc_num_ports callback
675 */
676 usb_set_serial_data(serial, (void *)(long)num_ports);
677
678 /* ask for the number of bytes available, but ignore the response as it is broken */
679 retval = usb_control_msg (serial->dev,
680 usb_rcvctrlpipe(serial->dev, 0),
681 VISOR_REQUEST_BYTES_AVAILABLE,
682 0xc2, 0x0000, 0x0005, transfer_buffer,
683 0x02, 300);
684 if (retval < 0)
685 dev_err(dev, "%s - error %d getting bytes available request\n",
686 __FUNCTION__, retval);
687 retval = 0;
688
689 exit:
690 kfree (transfer_buffer);
691
692 return retval;
693 }
694
695 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id)
696 {
697 struct device *dev = &serial->dev->dev;
698 struct palm_ext_connection_info *connection_info;
699 unsigned char *transfer_buffer;
700 int retval;
701
702 dbg("%s", __FUNCTION__);
703
704 transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
705 if (!transfer_buffer) {
706 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
707 sizeof(*connection_info));
708 return -ENOMEM;
709 }
710
711 retval = usb_control_msg (serial->dev,
712 usb_rcvctrlpipe(serial->dev, 0),
713 PALM_GET_EXT_CONNECTION_INFORMATION,
714 0xc2, 0x0000, 0x0000, transfer_buffer,
715 sizeof (*connection_info), 300);
716 if (retval < 0)
717 dev_err(dev, "%s - error %d getting connection info\n",
718 __FUNCTION__, retval);
719 else
720 usb_serial_debug_data(debug, &serial->dev->dev, __FUNCTION__,
721 retval, transfer_buffer);
722
723 kfree (transfer_buffer);
724 return 0;
725 }
726
727
728 static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id)
729 {
730 int retval = 0;
731 int (*startup) (struct usb_serial *serial, const struct usb_device_id *id);
732
733 dbg("%s", __FUNCTION__);
734
735 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
736 err("active config #%d != 1 ??",
737 serial->dev->actconfig->desc.bConfigurationValue);
738 return -ENODEV;
739 }
740
741 if (id->driver_info) {
742 startup = (void *)id->driver_info;
743 retval = startup(serial, id);
744 }
745
746 return retval;
747 }
748
749 static int visor_calc_num_ports (struct usb_serial *serial)
750 {
751 int num_ports = (int)(long)(usb_get_serial_data(serial));
752
753 if (num_ports)
754 usb_set_serial_data(serial, NULL);
755
756 return num_ports;
757 }
758
759 static int generic_startup(struct usb_serial *serial)
760 {
761 struct visor_private *priv;
762 int i;
763
764 for (i = 0; i < serial->num_ports; ++i) {
765 priv = kzalloc (sizeof(*priv), GFP_KERNEL);
766 if (!priv)
767 return -ENOMEM;
768 spin_lock_init(&priv->lock);
769 usb_set_serial_port_data(serial->port[i], priv);
770 }
771 return 0;
772 }
773
774 static int clie_3_5_startup (struct usb_serial *serial)
775 {
776 struct device *dev = &serial->dev->dev;
777 int result;
778 u8 data;
779
780 dbg("%s", __FUNCTION__);
781
782 /*
783 * Note that PEG-300 series devices expect the following two calls.
784 */
785
786 /* get the config number */
787 result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
788 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
789 0, 0, &data, 1, 3000);
790 if (result < 0) {
791 dev_err(dev, "%s: get config number failed: %d\n", __FUNCTION__, result);
792 return result;
793 }
794 if (result != 1) {
795 dev_err(dev, "%s: get config number bad return length: %d\n", __FUNCTION__, result);
796 return -EIO;
797 }
798
799 /* get the interface number */
800 result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
801 USB_REQ_GET_INTERFACE,
802 USB_DIR_IN | USB_RECIP_INTERFACE,
803 0, 0, &data, 1, 3000);
804 if (result < 0) {
805 dev_err(dev, "%s: get interface number failed: %d\n", __FUNCTION__, result);
806 return result;
807 }
808 if (result != 1) {
809 dev_err(dev, "%s: get interface number bad return length: %d\n", __FUNCTION__, result);
810 return -EIO;
811 }
812
813 return generic_startup(serial);
814 }
815
816 static int treo_attach (struct usb_serial *serial)
817 {
818 struct usb_serial_port *swap_port;
819
820 /* Only do this endpoint hack for the Handspring devices with
821 * interrupt in endpoints, which for now are the Treo devices. */
822 if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) ||
823 (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) ||
824 (serial->num_interrupt_in == 0))
825 goto generic_startup;
826
827 dbg("%s", __FUNCTION__);
828
829 /*
830 * It appears that Treos and Kyoceras want to use the
831 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
832 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
833 * Note that swapping the bulk out endpoints would break lots of
834 * apps that want to communicate on the second port.
835 */
836 #define COPY_PORT(dest, src) \
837 dest->read_urb = src->read_urb; \
838 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress; \
839 dest->bulk_in_buffer = src->bulk_in_buffer; \
840 dest->interrupt_in_urb = src->interrupt_in_urb; \
841 dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress; \
842 dest->interrupt_in_buffer = src->interrupt_in_buffer;
843
844 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
845 if (!swap_port)
846 return -ENOMEM;
847 COPY_PORT(swap_port, serial->port[0]);
848 COPY_PORT(serial->port[0], serial->port[1]);
849 COPY_PORT(serial->port[1], swap_port);
850 kfree(swap_port);
851
852 generic_startup:
853 return generic_startup(serial);
854 }
855
856 static int clie_5_attach (struct usb_serial *serial)
857 {
858 dbg("%s", __FUNCTION__);
859
860 /* TH55 registers 2 ports.
861 Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0
862 Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1
863
864 Lets do a quick and dirty mapping
865 */
866
867 /* some sanity check */
868 if (serial->num_ports < 2)
869 return -1;
870
871 /* port 0 now uses the modified endpoint Address */
872 serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress;
873
874 return generic_startup(serial);
875 }
876
877 static void visor_shutdown (struct usb_serial *serial)
878 {
879 dbg("%s", __FUNCTION__);
880 }
881
882 static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
883 {
884 dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
885
886 return -ENOIOCTLCMD;
887 }
888
889
890 /* This function is all nice and good, but we don't change anything based on it :) */
891 static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios)
892 {
893 unsigned int cflag;
894
895 dbg("%s - port %d", __FUNCTION__, port->number);
896
897 if ((!port->tty) || (!port->tty->termios)) {
898 dbg("%s - no tty structures", __FUNCTION__);
899 return;
900 }
901
902 cflag = port->tty->termios->c_cflag;
903 /* check that they really want us to change something */
904 if (old_termios) {
905 if ((cflag == old_termios->c_cflag) &&
906 (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
907 dbg("%s - nothing to change...", __FUNCTION__);
908 return;
909 }
910 }
911
912 /* get the byte size */
913 switch (cflag & CSIZE) {
914 case CS5: dbg("%s - data bits = 5", __FUNCTION__); break;
915 case CS6: dbg("%s - data bits = 6", __FUNCTION__); break;
916 case CS7: dbg("%s - data bits = 7", __FUNCTION__); break;
917 default:
918 case CS8: dbg("%s - data bits = 8", __FUNCTION__); break;
919 }
920
921 /* determine the parity */
922 if (cflag & PARENB)
923 if (cflag & PARODD)
924 dbg("%s - parity = odd", __FUNCTION__);
925 else
926 dbg("%s - parity = even", __FUNCTION__);
927 else
928 dbg("%s - parity = none", __FUNCTION__);
929
930 /* figure out the stop bits requested */
931 if (cflag & CSTOPB)
932 dbg("%s - stop bits = 2", __FUNCTION__);
933 else
934 dbg("%s - stop bits = 1", __FUNCTION__);
935
936
937 /* figure out the flow control settings */
938 if (cflag & CRTSCTS)
939 dbg("%s - RTS/CTS is enabled", __FUNCTION__);
940 else
941 dbg("%s - RTS/CTS is disabled", __FUNCTION__);
942
943 /* determine software flow control */
944 if (I_IXOFF(port->tty))
945 dbg("%s - XON/XOFF is enabled, XON = %2x, XOFF = %2x",
946 __FUNCTION__, START_CHAR(port->tty), STOP_CHAR(port->tty));
947 else
948 dbg("%s - XON/XOFF is disabled", __FUNCTION__);
949
950 /* get the baud rate wanted */
951 dbg("%s - baud rate = %d", __FUNCTION__, tty_get_baud_rate(port->tty));
952
953 return;
954 }
955
956
957 static int __init visor_init (void)
958 {
959 int i, retval;
960 /* Only if parameters were passed to us */
961 if ((vendor>0) && (product>0)) {
962 struct usb_device_id usb_dev_temp[]=
963 {{USB_DEVICE(vendor, product),
964 .driver_info = (kernel_ulong_t)&palm_os_4_probe }};
965
966 /* Find the last entry in id_table */
967 for (i=0; ; i++) {
968 if (id_table[i].idVendor==0) {
969 id_table[i] = usb_dev_temp[0];
970 break;
971 }
972 }
973 /* Find the last entry in id_table_combined */
974 for (i=0; ; i++) {
975 if (id_table_combined[i].idVendor==0) {
976 id_table_combined[i] = usb_dev_temp[0];
977 break;
978 }
979 }
980 info("Untested USB device specified at time of module insertion");
981 info("Warning: This is not guaranteed to work");
982 info("Using a newer kernel is preferred to this method");
983 info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x",
984 vendor, product);
985 }
986 retval = usb_serial_register(&handspring_device);
987 if (retval)
988 goto failed_handspring_register;
989 retval = usb_serial_register(&clie_3_5_device);
990 if (retval)
991 goto failed_clie_3_5_register;
992 retval = usb_serial_register(&clie_5_device);
993 if (retval)
994 goto failed_clie_5_register;
995 retval = usb_register(&visor_driver);
996 if (retval)
997 goto failed_usb_register;
998 info(DRIVER_DESC);
999
1000 return 0;
1001 failed_usb_register:
1002 usb_serial_deregister(&clie_5_device);
1003 failed_clie_5_register:
1004 usb_serial_deregister(&clie_3_5_device);
1005 failed_clie_3_5_register:
1006 usb_serial_deregister(&handspring_device);
1007 failed_handspring_register:
1008 return retval;
1009 }
1010
1011
1012 static void __exit visor_exit (void)
1013 {
1014 usb_deregister (&visor_driver);
1015 usb_serial_deregister (&handspring_device);
1016 usb_serial_deregister (&clie_3_5_device);
1017 usb_serial_deregister (&clie_5_device);
1018 }
1019
1020
1021 module_init(visor_init);
1022 module_exit(visor_exit);
1023
1024 MODULE_AUTHOR( DRIVER_AUTHOR );
1025 MODULE_DESCRIPTION( DRIVER_DESC );
1026 MODULE_LICENSE("GPL");
1027
1028 module_param(debug, bool, S_IRUGO | S_IWUSR);
1029 MODULE_PARM_DESC(debug, "Debug enabled or not");
1030 module_param(stats, bool, S_IRUGO | S_IWUSR);
1031 MODULE_PARM_DESC(stats, "Enables statistics or not");
1032
1033 module_param(vendor, ushort, 0);
1034 MODULE_PARM_DESC(vendor, "User specified vendor ID");
1035 module_param(product, ushort, 0);
1036 MODULE_PARM_DESC(product, "User specified product ID");
1037
Linux kernel - Deliverables
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