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[PATCH] USB: add new visor id for Treo 650
[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, or
11 * (at your option) any later version.
12 *
13 * See Documentation/usb/usb-serial.txt for more information on using this driver
14 *
15 * (06/03/2003) Judd Montgomery <judd at jpilot.org>
16 * Added support for module parameter options for untested/unknown
17 * devices.
18 *
19 * (03/09/2003) gkh
20 * Added support for the Sony Clie NZ90V device. Thanks to Martin Brachtl
21 * <brachtl@redgrep.cz> for the information.
22 *
23 * (03/05/2003) gkh
24 * Think Treo support is now working.
25 *
26 * (04/03/2002) gkh
27 * Added support for the Sony OS 4.1 devices. Thanks to Hiroyuki ARAKI
28 * <hiro@zob.ne.jp> for the information.
29 *
30 * (03/27/2002) gkh
31 * Removed assumptions that port->tty was always valid (is not true
32 * for usb serial console devices.)
33 *
34 * (03/23/2002) gkh
35 * Added support for the Palm i705 device, thanks to Thomas Riemer
36 * <tom@netmech.com> for the information.
37 *
38 * (03/21/2002) gkh
39 * Added support for the Palm m130 device, thanks to Udo Eisenbarth
40 * <udo.eisenbarth@web.de> for the information.
41 *
42 * (02/27/2002) gkh
43 * Reworked the urb handling logic. We have no more pool, but dynamically
44 * allocate the urb and the transfer buffer on the fly. In testing this
45 * does not incure any measurable overhead. This also relies on the fact
46 * that we have proper reference counting logic for urbs.
47 *
48 * (02/21/2002) SilaS
49 * Added initial support for the Palm m515 devices.
50 *
51 * (02/14/2002) gkh
52 * Added support for the Clie S-360 device.
53 *
54 * (12/18/2001) gkh
55 * Added better Clie support for 3.5 devices. Thanks to Geoffrey Levand
56 * for the patch.
57 *
58 * (11/11/2001) gkh
59 * Added support for the m125 devices, and added check to prevent oopses
60 * for Clié devices that lie about the number of ports they have.
61 *
62 * (08/30/2001) gkh
63 * Added support for the Clie devices, both the 3.5 and 4.0 os versions.
64 * Many thanks to Daniel Burke, and Bryan Payne for helping with this.
65 *
66 * (08/23/2001) gkh
67 * fixed a few potential bugs pointed out by Oliver Neukum.
68 *
69 * (05/30/2001) gkh
70 * switched from using spinlock to a semaphore, which fixes lots of problems.
71 *
72 * (05/28/2000) gkh
73 * Added initial support for the Palm m500 and Palm m505 devices.
74 *
75 * (04/08/2001) gb
76 * Identify version on module load.
77 *
78 * (01/21/2000) gkh
79 * Added write_room and chars_in_buffer, as they were previously using the
80 * generic driver versions which is all wrong now that we are using an urb
81 * pool. Thanks to Wolfgang Grandegger for pointing this out to me.
82 * Removed count assignment in the write function, which was not needed anymore
83 * either. Thanks to Al Borchers for pointing this out.
84 *
85 * (12/12/2000) gkh
86 * Moved MOD_DEC to end of visor_close to be nicer, as the final write
87 * message can sleep.
88 *
89 * (11/12/2000) gkh
90 * Fixed bug with data being dropped on the floor by forcing tty->low_latency
91 * to be on. Hopefully this fixes the OHCI issue!
92 *
93 * (11/01/2000) Adam J. Richter
94 * usb_device_id table support
95 *
96 * (10/05/2000) gkh
97 * Fixed bug with urb->dev not being set properly, now that the usb
98 * core needs it.
99 *
100 * (09/11/2000) gkh
101 * Got rid of always calling kmalloc for every urb we wrote out to the
102 * device.
103 * Added visor_read_callback so we can keep track of bytes in and out for
104 * those people who like to know the speed of their device.
105 * Removed DEBUG #ifdefs with call to usb_serial_debug_data
106 *
107 * (09/06/2000) gkh
108 * Fixed oops in visor_exit. Need to uncomment usb_unlink_urb call _after_
109 * the host controller drivers set urb->dev = NULL when the urb is finished.
110 *
111 * (08/28/2000) gkh
112 * Added locks for SMP safeness.
113 *
114 * (08/08/2000) gkh
115 * Fixed endian problem in visor_startup.
116 * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
117 * than once.
118 *
119 * (07/23/2000) gkh
120 * Added pool of write urbs to speed up transfers to the visor.
121 *
122 * (07/19/2000) gkh
123 * Added module_init and module_exit functions to handle the fact that this
124 * driver is a loadable module now.
125 *
126 * (07/03/2000) gkh
127 * Added visor_set_ioctl and visor_set_termios functions (they don't do much
128 * of anything, but are good for debugging.)
129 *
130 * (06/25/2000) gkh
131 * Fixed bug in visor_unthrottle that should help with the disconnect in PPP
132 * bug that people have been reporting.
133 *
134 * (06/23/2000) gkh
135 * Cleaned up debugging statements in a quest to find UHCI timeout bug.
136 *
137 * (04/27/2000) Ryan VanderBijl
138 * Fixed memory leak in visor_close
139 *
140 * (03/26/2000) gkh
141 * Split driver up into device specific pieces.
142 *
143 */
144
145 #include <linux/config.h>
146 #include <linux/kernel.h>
147 #include <linux/errno.h>
148 #include <linux/init.h>
149 #include <linux/slab.h>
150 #include <linux/tty.h>
151 #include <linux/tty_driver.h>
152 #include <linux/tty_flip.h>
153 #include <linux/module.h>
154 #include <linux/moduleparam.h>
155 #include <linux/spinlock.h>
156 #include <asm/uaccess.h>
157 #include <linux/usb.h>
158 #include "usb-serial.h"
159 #include "visor.h"
160
161 /*
162 * Version Information
163 */
164 #define DRIVER_VERSION "v2.1"
165 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
166 #define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
167
168 /* function prototypes for a handspring visor */
169 static int visor_open (struct usb_serial_port *port, struct file *filp);
170 static void visor_close (struct usb_serial_port *port, struct file *filp);
171 static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count);
172 static int visor_write_room (struct usb_serial_port *port);
173 static int visor_chars_in_buffer (struct usb_serial_port *port);
174 static void visor_throttle (struct usb_serial_port *port);
175 static void visor_unthrottle (struct usb_serial_port *port);
176 static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id);
177 static int visor_calc_num_ports(struct usb_serial *serial);
178 static void visor_shutdown (struct usb_serial *serial);
179 static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
180 static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios);
181 static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
182 static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
183 static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs);
184 static int clie_3_5_startup (struct usb_serial *serial);
185 static int treo_attach (struct usb_serial *serial);
186 static int clie_5_attach (struct usb_serial *serial);
187 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);
188 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);
189
190 /* Parameters that may be passed into the module. */
191 static int debug;
192 static __u16 vendor;
193 static __u16 product;
194
195 static struct usb_device_id id_table [] = {
196 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
197 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
198 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
199 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
200 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
201 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
202 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
203 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
204 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
205 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
206 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
207 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
208 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
209 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
210 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
211 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
212 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
213 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
214 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
215 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
216 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
217 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
218 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
219 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
220 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
221 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
222 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID),
223 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
224 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
225 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
226 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
227 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
228 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
229 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
230 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
231 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
232 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
233 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
234 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
235 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
236 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
237 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
238 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
239 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
240 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
241 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
242 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
243 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
244 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
245 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
246 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
247 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
248 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
249 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
250 { }, /* optional parameter entry */
251 { } /* Terminating entry */
252 };
253
254 static struct usb_device_id clie_id_5_table [] = {
255 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
256 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
257 { }, /* optional parameter entry */
258 { } /* Terminating entry */
259 };
260
261 static struct usb_device_id clie_id_3_5_table [] = {
262 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
263 { } /* Terminating entry */
264 };
265
266 static struct usb_device_id id_table_combined [] = {
267 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
268 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
269 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
270 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
271 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
272 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
273 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
274 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
275 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
276 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
277 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
278 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
279 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
280 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE31_ID) },
281 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
282 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
283 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
284 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
285 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
286 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
287 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
288 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
289 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
290 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
291 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
292 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
293 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
294 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
295 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
296 { }, /* optional parameter entry */
297 { } /* Terminating entry */
298 };
299
300 MODULE_DEVICE_TABLE (usb, id_table_combined);
301
302 static struct usb_driver visor_driver = {
303 .owner = THIS_MODULE,
304 .name = "visor",
305 .probe = usb_serial_probe,
306 .disconnect = usb_serial_disconnect,
307 .id_table = id_table_combined,
308 };
309
310 /* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
311 static struct usb_serial_device_type handspring_device = {
312 .owner = THIS_MODULE,
313 .name = "Handspring Visor / Palm OS",
314 .short_name = "visor",
315 .id_table = id_table,
316 .num_interrupt_in = NUM_DONT_CARE,
317 .num_bulk_in = 2,
318 .num_bulk_out = 2,
319 .num_ports = 2,
320 .open = visor_open,
321 .close = visor_close,
322 .throttle = visor_throttle,
323 .unthrottle = visor_unthrottle,
324 .attach = treo_attach,
325 .probe = visor_probe,
326 .calc_num_ports = visor_calc_num_ports,
327 .shutdown = visor_shutdown,
328 .ioctl = visor_ioctl,
329 .set_termios = visor_set_termios,
330 .write = visor_write,
331 .write_room = visor_write_room,
332 .chars_in_buffer = visor_chars_in_buffer,
333 .write_bulk_callback = visor_write_bulk_callback,
334 .read_bulk_callback = visor_read_bulk_callback,
335 .read_int_callback = visor_read_int_callback,
336 };
337
338 /* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */
339 static struct usb_serial_device_type clie_5_device = {
340 .owner = THIS_MODULE,
341 .name = "Sony Clie 5.0",
342 .short_name = "clie_5",
343 .id_table = clie_id_5_table,
344 .num_interrupt_in = NUM_DONT_CARE,
345 .num_bulk_in = 2,
346 .num_bulk_out = 2,
347 .num_ports = 2,
348 .open = visor_open,
349 .close = visor_close,
350 .throttle = visor_throttle,
351 .unthrottle = visor_unthrottle,
352 .attach = clie_5_attach,
353 .probe = visor_probe,
354 .calc_num_ports = visor_calc_num_ports,
355 .shutdown = visor_shutdown,
356 .ioctl = visor_ioctl,
357 .set_termios = visor_set_termios,
358 .write = visor_write,
359 .write_room = visor_write_room,
360 .chars_in_buffer = visor_chars_in_buffer,
361 .write_bulk_callback = visor_write_bulk_callback,
362 .read_bulk_callback = visor_read_bulk_callback,
363 .read_int_callback = visor_read_int_callback,
364 };
365
366 /* device info for the Sony Clie OS version 3.5 */
367 static struct usb_serial_device_type clie_3_5_device = {
368 .owner = THIS_MODULE,
369 .name = "Sony Clie 3.5",
370 .short_name = "clie_3.5",
371 .id_table = clie_id_3_5_table,
372 .num_interrupt_in = 0,
373 .num_bulk_in = 1,
374 .num_bulk_out = 1,
375 .num_ports = 1,
376 .open = visor_open,
377 .close = visor_close,
378 .throttle = visor_throttle,
379 .unthrottle = visor_unthrottle,
380 .attach = clie_3_5_startup,
381 .ioctl = visor_ioctl,
382 .set_termios = visor_set_termios,
383 .write = visor_write,
384 .write_room = visor_write_room,
385 .chars_in_buffer = visor_chars_in_buffer,
386 .write_bulk_callback = visor_write_bulk_callback,
387 .read_bulk_callback = visor_read_bulk_callback,
388 };
389
390 struct visor_private {
391 spinlock_t lock;
392 int bytes_in;
393 int bytes_out;
394 int outstanding_urbs;
395 int throttled;
396 };
397
398 /* number of outstanding urbs to prevent userspace DoS from happening */
399 #define URB_UPPER_LIMIT 42
400
401 static int stats;
402
403 /******************************************************************************
404 * Handspring Visor specific driver functions
405 ******************************************************************************/
406 static int visor_open (struct usb_serial_port *port, struct file *filp)
407 {
408 struct usb_serial *serial = port->serial;
409 struct visor_private *priv = usb_get_serial_port_data(port);
410 unsigned long flags;
411 int result = 0;
412
413 dbg("%s - port %d", __FUNCTION__, port->number);
414
415 if (!port->read_urb) {
416 /* this is needed for some brain dead Sony devices */
417 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
418 return -ENODEV;
419 }
420
421 spin_lock_irqsave(&priv->lock, flags);
422 priv->bytes_in = 0;
423 priv->bytes_out = 0;
424 priv->outstanding_urbs = 0;
425 priv->throttled = 0;
426 spin_unlock_irqrestore(&priv->lock, flags);
427
428 /*
429 * Force low_latency on so that our tty_push actually forces the data
430 * through, otherwise it is scheduled, and with high data rates (like
431 * with OHCI) data can get lost.
432 */
433 if (port->tty)
434 port->tty->low_latency = 1;
435
436 /* Start reading from the device */
437 usb_fill_bulk_urb (port->read_urb, serial->dev,
438 usb_rcvbulkpipe (serial->dev,
439 port->bulk_in_endpointAddress),
440 port->read_urb->transfer_buffer,
441 port->read_urb->transfer_buffer_length,
442 visor_read_bulk_callback, port);
443 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
444 if (result) {
445 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",
446 __FUNCTION__, result);
447 goto exit;
448 }
449
450 if (port->interrupt_in_urb) {
451 dbg("%s - adding interrupt input for treo", __FUNCTION__);
452 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
453 if (result)
454 dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",
455 __FUNCTION__, result);
456 }
457 exit:
458 return result;
459 }
460
461
462 static void visor_close (struct usb_serial_port *port, struct file * filp)
463 {
464 struct visor_private *priv = usb_get_serial_port_data(port);
465 unsigned char *transfer_buffer;
466
467 dbg("%s - port %d", __FUNCTION__, port->number);
468
469 /* shutdown our urbs */
470 usb_kill_urb(port->read_urb);
471 if (port->interrupt_in_urb)
472 usb_kill_urb(port->interrupt_in_urb);
473
474 /* Try to send shutdown message, if the device is gone, this will just fail. */
475 transfer_buffer = kmalloc (0x12, GFP_KERNEL);
476 if (transfer_buffer) {
477 usb_control_msg (port->serial->dev,
478 usb_rcvctrlpipe(port->serial->dev, 0),
479 VISOR_CLOSE_NOTIFICATION, 0xc2,
480 0x0000, 0x0000,
481 transfer_buffer, 0x12, 300);
482 kfree (transfer_buffer);
483 }
484
485 if (stats)
486 dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
487 priv->bytes_in, priv->bytes_out);
488 }
489
490
491 static int visor_write (struct usb_serial_port *port, const unsigned char *buf, int count)
492 {
493 struct visor_private *priv = usb_get_serial_port_data(port);
494 struct usb_serial *serial = port->serial;
495 struct urb *urb;
496 unsigned char *buffer;
497 unsigned long flags;
498 int status;
499
500 dbg("%s - port %d", __FUNCTION__, port->number);
501
502 spin_lock_irqsave(&priv->lock, flags);
503 if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
504 spin_unlock_irqrestore(&priv->lock, flags);
505 dbg("%s - write limit hit\n", __FUNCTION__);
506 return 0;
507 }
508 spin_unlock_irqrestore(&priv->lock, flags);
509
510 buffer = kmalloc (count, GFP_ATOMIC);
511 if (!buffer) {
512 dev_err(&port->dev, "out of memory\n");
513 return -ENOMEM;
514 }
515
516 urb = usb_alloc_urb(0, GFP_ATOMIC);
517 if (!urb) {
518 dev_err(&port->dev, "no more free urbs\n");
519 kfree (buffer);
520 return -ENOMEM;
521 }
522
523 memcpy (buffer, buf, count);
524
525 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
526
527 usb_fill_bulk_urb (urb, serial->dev,
528 usb_sndbulkpipe (serial->dev,
529 port->bulk_out_endpointAddress),
530 buffer, count,
531 visor_write_bulk_callback, port);
532
533 /* send it down the pipe */
534 status = usb_submit_urb(urb, GFP_ATOMIC);
535 if (status) {
536 dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed with status = %d\n",
537 __FUNCTION__, status);
538 count = status;
539 kfree (buffer);
540 } else {
541 spin_lock_irqsave(&priv->lock, flags);
542 ++priv->outstanding_urbs;
543 priv->bytes_out += count;
544 spin_unlock_irqrestore(&priv->lock, flags);
545 }
546
547 /* we are done with this urb, so let the host driver
548 * really free it when it is finished with it */
549 usb_free_urb (urb);
550
551 return count;
552 }
553
554
555 static int visor_write_room (struct usb_serial_port *port)
556 {
557 dbg("%s - port %d", __FUNCTION__, port->number);
558
559 /*
560 * We really can take anything the user throws at us
561 * but let's pick a nice big number to tell the tty
562 * layer that we have lots of free space
563 */
564 return 2048;
565 }
566
567
568 static int visor_chars_in_buffer (struct usb_serial_port *port)
569 {
570 dbg("%s - port %d", __FUNCTION__, port->number);
571
572 /*
573 * We can't really account for how much data we
574 * have sent out, but hasn't made it through to the
575 * device, so just tell the tty layer that everything
576 * is flushed.
577 */
578 return 0;
579 }
580
581
582 static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs)
583 {
584 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
585 struct visor_private *priv = usb_get_serial_port_data(port);
586 unsigned long flags;
587
588 /* free up the transfer buffer, as usb_free_urb() does not do this */
589 kfree (urb->transfer_buffer);
590
591 dbg("%s - port %d", __FUNCTION__, port->number);
592
593 if (urb->status)
594 dbg("%s - nonzero write bulk status received: %d",
595 __FUNCTION__, urb->status);
596
597 spin_lock_irqsave(&priv->lock, flags);
598 --priv->outstanding_urbs;
599 spin_unlock_irqrestore(&priv->lock, flags);
600
601 schedule_work(&port->work);
602 }
603
604
605 static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs)
606 {
607 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
608 struct visor_private *priv = usb_get_serial_port_data(port);
609 unsigned char *data = urb->transfer_buffer;
610 struct tty_struct *tty;
611 unsigned long flags;
612 int i;
613 int throttled;
614 int result;
615
616 dbg("%s - port %d", __FUNCTION__, port->number);
617
618 if (urb->status) {
619 dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status);
620 return;
621 }
622
623 usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
624
625 tty = port->tty;
626 if (tty && urb->actual_length) {
627 for (i = 0; i < urb->actual_length ; ++i) {
628 /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
629 if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
630 tty_flip_buffer_push(tty);
631 }
632 /* this doesn't actually push the data through unless tty->low_latency is set */
633 tty_insert_flip_char(tty, data[i], 0);
634 }
635 tty_flip_buffer_push(tty);
636 }
637 spin_lock_irqsave(&priv->lock, flags);
638 priv->bytes_in += urb->actual_length;
639 throttled = priv->throttled;
640 spin_unlock_irqrestore(&priv->lock, flags);
641
642 /* Continue trying to always read if we should */
643 if (!throttled) {
644 usb_fill_bulk_urb (port->read_urb, port->serial->dev,
645 usb_rcvbulkpipe(port->serial->dev,
646 port->bulk_in_endpointAddress),
647 port->read_urb->transfer_buffer,
648 port->read_urb->transfer_buffer_length,
649 visor_read_bulk_callback, port);
650 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
651 if (result)
652 dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
653 }
654 return;
655 }
656
657 static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
658 {
659 struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
660 int result;
661
662 switch (urb->status) {
663 case 0:
664 /* success */
665 break;
666 case -ECONNRESET:
667 case -ENOENT:
668 case -ESHUTDOWN:
669 /* this urb is terminated, clean up */
670 dbg("%s - urb shutting down with status: %d",
671 __FUNCTION__, urb->status);
672 return;
673 default:
674 dbg("%s - nonzero urb status received: %d",
675 __FUNCTION__, urb->status);
676 goto exit;
677 }
678
679 /*
680 * This information is still unknown what it can be used for.
681 * If anyone has an idea, please let the author know...
682 *
683 * Rumor has it this endpoint is used to notify when data
684 * is ready to be read from the bulk ones.
685 */
686 usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
687 urb->actual_length, urb->transfer_buffer);
688
689 exit:
690 result = usb_submit_urb (urb, GFP_ATOMIC);
691 if (result)
692 dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n",
693 __FUNCTION__, result);
694 }
695
696 static void visor_throttle (struct usb_serial_port *port)
697 {
698 struct visor_private *priv = usb_get_serial_port_data(port);
699 unsigned long flags;
700
701 dbg("%s - port %d", __FUNCTION__, port->number);
702 spin_lock_irqsave(&priv->lock, flags);
703 priv->throttled = 1;
704 spin_unlock_irqrestore(&priv->lock, flags);
705 }
706
707
708 static void visor_unthrottle (struct usb_serial_port *port)
709 {
710 struct visor_private *priv = usb_get_serial_port_data(port);
711 unsigned long flags;
712 int result;
713
714 dbg("%s - port %d", __FUNCTION__, port->number);
715 spin_lock_irqsave(&priv->lock, flags);
716 priv->throttled = 0;
717 spin_unlock_irqrestore(&priv->lock, flags);
718
719 port->read_urb->dev = port->serial->dev;
720 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
721 if (result)
722 dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result);
723 }
724
725 static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id)
726 {
727 struct device *dev = &serial->dev->dev;
728 struct visor_connection_info *connection_info;
729 unsigned char *transfer_buffer;
730 char *string;
731 int retval = 0;
732 int i;
733 int num_ports = 0;
734
735 dbg("%s", __FUNCTION__);
736
737 transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
738 if (!transfer_buffer) {
739 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
740 sizeof(*connection_info));
741 return -ENOMEM;
742 }
743
744 /* send a get connection info request */
745 retval = usb_control_msg (serial->dev,
746 usb_rcvctrlpipe(serial->dev, 0),
747 VISOR_GET_CONNECTION_INFORMATION,
748 0xc2, 0x0000, 0x0000, transfer_buffer,
749 sizeof(*connection_info), 300);
750 if (retval < 0) {
751 dev_err(dev, "%s - error %d getting connection information\n",
752 __FUNCTION__, retval);
753 goto exit;
754 }
755
756 if (retval == sizeof(*connection_info)) {
757 connection_info = (struct visor_connection_info *)transfer_buffer;
758
759 num_ports = le16_to_cpu(connection_info->num_ports);
760 for (i = 0; i < num_ports; ++i) {
761 switch (connection_info->connections[i].port_function_id) {
762 case VISOR_FUNCTION_GENERIC:
763 string = "Generic";
764 break;
765 case VISOR_FUNCTION_DEBUGGER:
766 string = "Debugger";
767 break;
768 case VISOR_FUNCTION_HOTSYNC:
769 string = "HotSync";
770 break;
771 case VISOR_FUNCTION_CONSOLE:
772 string = "Console";
773 break;
774 case VISOR_FUNCTION_REMOTE_FILE_SYS:
775 string = "Remote File System";
776 break;
777 default:
778 string = "unknown";
779 break;
780 }
781 dev_info(dev, "%s: port %d, is for %s use\n",
782 serial->type->name,
783 connection_info->connections[i].port, string);
784 }
785 }
786 /*
787 * Handle devices that report invalid stuff here.
788 */
789 if (num_ports == 0 || num_ports > 2) {
790 dev_warn (dev, "%s: No valid connect info available\n",
791 serial->type->name);
792 num_ports = 2;
793 }
794
795 dev_info(dev, "%s: Number of ports: %d\n", serial->type->name,
796 num_ports);
797
798 /*
799 * save off our num_ports info so that we can use it in the
800 * calc_num_ports callback
801 */
802 usb_set_serial_data(serial, (void *)(long)num_ports);
803
804 /* ask for the number of bytes available, but ignore the response as it is broken */
805 retval = usb_control_msg (serial->dev,
806 usb_rcvctrlpipe(serial->dev, 0),
807 VISOR_REQUEST_BYTES_AVAILABLE,
808 0xc2, 0x0000, 0x0005, transfer_buffer,
809 0x02, 300);
810 if (retval < 0)
811 dev_err(dev, "%s - error %d getting bytes available request\n",
812 __FUNCTION__, retval);
813 retval = 0;
814
815 exit:
816 kfree (transfer_buffer);
817
818 return retval;
819 }
820
821 static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id)
822 {
823 struct device *dev = &serial->dev->dev;
824 struct palm_ext_connection_info *connection_info;
825 unsigned char *transfer_buffer;
826 int retval;
827
828 dbg("%s", __FUNCTION__);
829
830 transfer_buffer = kmalloc (sizeof (*connection_info), GFP_KERNEL);
831 if (!transfer_buffer) {
832 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __FUNCTION__,
833 sizeof(*connection_info));
834 return -ENOMEM;
835 }
836
837 retval = usb_control_msg (serial->dev,
838 usb_rcvctrlpipe(serial->dev, 0),
839 PALM_GET_EXT_CONNECTION_INFORMATION,
840 0xc2, 0x0000, 0x0000, transfer_buffer,
841 sizeof (*connection_info), 300);
842 if (retval < 0)
843 dev_err(dev, "%s - error %d getting connection info\n",
844 __FUNCTION__, retval);
845 else
846 usb_serial_debug_data(debug, &serial->dev->dev, __FUNCTION__,
847 retval, transfer_buffer);
848
849 kfree (transfer_buffer);
850 return 0;
851 }
852
853
854 static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id)
855 {
856 int retval = 0;
857 int (*startup) (struct usb_serial *serial, const struct usb_device_id *id);
858
859 dbg("%s", __FUNCTION__);
860
861 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
862 err("active config #%d != 1 ??",
863 serial->dev->actconfig->desc.bConfigurationValue);
864 return -ENODEV;
865 }
866
867 if (id->driver_info) {
868 startup = (void *)id->driver_info;
869 retval = startup(serial, id);
870 }
871
872 return retval;
873 }
874
875 static int visor_calc_num_ports (struct usb_serial *serial)
876 {
877 int num_ports = (int)(long)(usb_get_serial_data(serial));
878
879 if (num_ports)
880 usb_set_serial_data(serial, NULL);
881
882 return num_ports;
883 }
884
885 static int generic_startup(struct usb_serial *serial)
886 {
887 struct visor_private *priv;
888 int i;
889
890 for (i = 0; i < serial->num_ports; ++i) {
891 priv = kmalloc (sizeof(*priv), GFP_KERNEL);
892 if (!priv)
893 return -ENOMEM;
894 memset (priv, 0x00, sizeof(*priv));
895 spin_lock_init(&priv->lock);
896 usb_set_serial_port_data(serial->port[i], priv);
897 }
898 return 0;
899 }
900
901 static int clie_3_5_startup (struct usb_serial *serial)
902 {
903 struct device *dev = &serial->dev->dev;
904 int result;
905 u8 data;
906
907 dbg("%s", __FUNCTION__);
908
909 /*
910 * Note that PEG-300 series devices expect the following two calls.
911 */
912
913 /* get the config number */
914 result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
915 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
916 0, 0, &data, 1, 3000);
917 if (result < 0) {
918 dev_err(dev, "%s: get config number failed: %d\n", __FUNCTION__, result);
919 return result;
920 }
921 if (result != 1) {
922 dev_err(dev, "%s: get config number bad return length: %d\n", __FUNCTION__, result);
923 return -EIO;
924 }
925
926 /* get the interface number */
927 result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0),
928 USB_REQ_GET_INTERFACE,
929 USB_DIR_IN | USB_RECIP_INTERFACE,
930 0, 0, &data, 1, 3000);
931 if (result < 0) {
932 dev_err(dev, "%s: get interface number failed: %d\n", __FUNCTION__, result);
933 return result;
934 }
935 if (result != 1) {
936 dev_err(dev, "%s: get interface number bad return length: %d\n", __FUNCTION__, result);
937 return -EIO;
938 }
939
940 return generic_startup(serial);
941 }
942
943 static int treo_attach (struct usb_serial *serial)
944 {
945 struct usb_serial_port *swap_port;
946
947 /* Only do this endpoint hack for the Handspring devices with
948 * interrupt in endpoints, which for now are the Treo devices. */
949 if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) ||
950 (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) ||
951 (serial->num_interrupt_in == 0))
952 goto generic_startup;
953
954 dbg("%s", __FUNCTION__);
955
956 /*
957 * It appears that Treos and Kyoceras want to use the
958 * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
959 * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
960 * Note that swapping the bulk out endpoints would break lots of
961 * apps that want to communicate on the second port.
962 */
963 #define COPY_PORT(dest, src) \
964 dest->read_urb = src->read_urb; \
965 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress; \
966 dest->bulk_in_buffer = src->bulk_in_buffer; \
967 dest->interrupt_in_urb = src->interrupt_in_urb; \
968 dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress; \
969 dest->interrupt_in_buffer = src->interrupt_in_buffer;
970
971 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
972 if (!swap_port)
973 return -ENOMEM;
974 COPY_PORT(swap_port, serial->port[0]);
975 COPY_PORT(serial->port[0], serial->port[1]);
976 COPY_PORT(serial->port[1], swap_port);
977 kfree(swap_port);
978
979 generic_startup:
980 return generic_startup(serial);
981 }
982
983 static int clie_5_attach (struct usb_serial *serial)
984 {
985 dbg("%s", __FUNCTION__);
986
987 /* TH55 registers 2 ports.
988 Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0
989 Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1
990
991 Lets do a quick and dirty mapping
992 */
993
994 /* some sanity check */
995 if (serial->num_ports < 2)
996 return -1;
997
998 /* port 0 now uses the modified endpoint Address */
999 serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress;
1000
1001 return generic_startup(serial);
1002 }
1003
1004 static void visor_shutdown (struct usb_serial *serial)
1005 {
1006 dbg("%s", __FUNCTION__);
1007 }
1008
1009 static int visor_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
1010 {
1011 dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd);
1012
1013 return -ENOIOCTLCMD;
1014 }
1015
1016
1017 /* This function is all nice and good, but we don't change anything based on it :) */
1018 static void visor_set_termios (struct usb_serial_port *port, struct termios *old_termios)
1019 {
1020 unsigned int cflag;
1021
1022 dbg("%s - port %d", __FUNCTION__, port->number);
1023
1024 if ((!port->tty) || (!port->tty->termios)) {
1025 dbg("%s - no tty structures", __FUNCTION__);
1026 return;
1027 }
1028
1029 cflag = port->tty->termios->c_cflag;
1030 /* check that they really want us to change something */
1031 if (old_termios) {
1032 if ((cflag == old_termios->c_cflag) &&
1033 (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
1034 dbg("%s - nothing to change...", __FUNCTION__);
1035 return;
1036 }
1037 }
1038
1039 /* get the byte size */
1040 switch (cflag & CSIZE) {
1041 case CS5: dbg("%s - data bits = 5", __FUNCTION__); break;
1042 case CS6: dbg("%s - data bits = 6", __FUNCTION__); break;
1043 case CS7: dbg("%s - data bits = 7", __FUNCTION__); break;
1044 default:
1045 case CS8: dbg("%s - data bits = 8", __FUNCTION__); break;
1046 }
1047
1048 /* determine the parity */
1049 if (cflag & PARENB)
1050 if (cflag & PARODD)
1051 dbg("%s - parity = odd", __FUNCTION__);
1052 else
1053 dbg("%s - parity = even", __FUNCTION__);
1054 else
1055 dbg("%s - parity = none", __FUNCTION__);
1056
1057 /* figure out the stop bits requested */
1058 if (cflag & CSTOPB)
1059 dbg("%s - stop bits = 2", __FUNCTION__);
1060 else
1061 dbg("%s - stop bits = 1", __FUNCTION__);
1062
1063
1064 /* figure out the flow control settings */
1065 if (cflag & CRTSCTS)
1066 dbg("%s - RTS/CTS is enabled", __FUNCTION__);
1067 else
1068 dbg("%s - RTS/CTS is disabled", __FUNCTION__);
1069
1070 /* determine software flow control */
1071 if (I_IXOFF(port->tty))
1072 dbg("%s - XON/XOFF is enabled, XON = %2x, XOFF = %2x",
1073 __FUNCTION__, START_CHAR(port->tty), STOP_CHAR(port->tty));
1074 else
1075 dbg("%s - XON/XOFF is disabled", __FUNCTION__);
1076
1077 /* get the baud rate wanted */
1078 dbg("%s - baud rate = %d", __FUNCTION__, tty_get_baud_rate(port->tty));
1079
1080 return;
1081 }
1082
1083
1084 static int __init visor_init (void)
1085 {
1086 int i, retval;
1087 /* Only if parameters were passed to us */
1088 if ((vendor>0) && (product>0)) {
1089 struct usb_device_id usb_dev_temp[]=
1090 {{USB_DEVICE(vendor, product),
1091 .driver_info = (kernel_ulong_t)&palm_os_4_probe }};
1092
1093 /* Find the last entry in id_table */
1094 for (i=0; ; i++) {
1095 if (id_table[i].idVendor==0) {
1096 id_table[i] = usb_dev_temp[0];
1097 break;
1098 }
1099 }
1100 /* Find the last entry in id_table_combined */
1101 for (i=0; ; i++) {
1102 if (id_table_combined[i].idVendor==0) {
1103 id_table_combined[i] = usb_dev_temp[0];
1104 break;
1105 }
1106 }
1107 info("Untested USB device specified at time of module insertion");
1108 info("Warning: This is not guaranteed to work");
1109 info("Using a newer kernel is preferred to this method");
1110 info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x",
1111 vendor, product);
1112 }
1113 retval = usb_serial_register(&handspring_device);
1114 if (retval)
1115 goto failed_handspring_register;
1116 retval = usb_serial_register(&clie_3_5_device);
1117 if (retval)
1118 goto failed_clie_3_5_register;
1119 retval = usb_serial_register(&clie_5_device);
1120 if (retval)
1121 goto failed_clie_5_register;
1122 retval = usb_register(&visor_driver);
1123 if (retval)
1124 goto failed_usb_register;
1125 info(DRIVER_DESC " " DRIVER_VERSION);
1126
1127 return 0;
1128 failed_usb_register:
1129 usb_serial_deregister(&clie_5_device);
1130 failed_clie_5_register:
1131 usb_serial_deregister(&clie_3_5_device);
1132 failed_clie_3_5_register:
1133 usb_serial_deregister(&handspring_device);
1134 failed_handspring_register:
1135 return retval;
1136 }
1137
1138
1139 static void __exit visor_exit (void)
1140 {
1141 usb_deregister (&visor_driver);
1142 usb_serial_deregister (&handspring_device);
1143 usb_serial_deregister (&clie_3_5_device);
1144 usb_serial_deregister (&clie_5_device);
1145 }
1146
1147
1148 module_init(visor_init);
1149 module_exit(visor_exit);
1150
1151 MODULE_AUTHOR( DRIVER_AUTHOR );
1152 MODULE_DESCRIPTION( DRIVER_DESC );
1153 MODULE_LICENSE("GPL");
1154
1155 module_param(debug, bool, S_IRUGO | S_IWUSR);
1156 MODULE_PARM_DESC(debug, "Debug enabled or not");
1157 module_param(stats, bool, S_IRUGO | S_IWUSR);
1158 MODULE_PARM_DESC(stats, "Enables statistics or not");
1159
1160 module_param(vendor, ushort, 0);
1161 MODULE_PARM_DESC(vendor, "User specified vendor ID");
1162 module_param(product, ushort, 0);
1163 MODULE_PARM_DESC(product, "User specified product ID");
1164
Linux kernel - Deliverables
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