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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 "visor.h"
31
32
33
34
35#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"
36#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"
37
38
39static int visor_open(struct tty_struct *tty, struct usb_serial_port *port);
40static void visor_close(struct usb_serial_port *port);
41static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
42 const unsigned char *buf, int count);
43static int visor_write_room(struct tty_struct *tty);
44static void visor_throttle(struct tty_struct *tty);
45static void visor_unthrottle(struct tty_struct *tty);
46static int visor_probe(struct usb_serial *serial,
47 const struct usb_device_id *id);
48static int visor_calc_num_ports(struct usb_serial *serial);
49static void visor_release(struct usb_serial *serial);
50static void visor_write_bulk_callback(struct urb *urb);
51static void visor_read_bulk_callback(struct urb *urb);
52static void visor_read_int_callback(struct urb *urb);
53static int clie_3_5_startup(struct usb_serial *serial);
54static int treo_attach(struct usb_serial *serial);
55static int clie_5_attach(struct usb_serial *serial);
56static int palm_os_3_probe(struct usb_serial *serial,
57 const struct usb_device_id *id);
58static int palm_os_4_probe(struct usb_serial *serial,
59 const struct usb_device_id *id);
60
61
62static int debug;
63static __u16 vendor;
64static __u16 product;
65
66static struct usb_device_id id_table [] = {
67 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
68 .driver_info = (kernel_ulong_t)&palm_os_3_probe },
69 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
70 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
71 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
72 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
73 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
74 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
75 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
76 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
77 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
78 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
79 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
80 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
81 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
82 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
83 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
84 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
85 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
86 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
87 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
88 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
89 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
90 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
91 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
92 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
93 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_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(ACER_VENDOR_ID, ACER_S10_ID),
110 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
111 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
112 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
113 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
114 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
115 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
116 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
117 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
118 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
119 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
120 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
121 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
122 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
123 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
124 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
125 { },
126 { }
127};
128
129static struct usb_device_id clie_id_5_table [] = {
130 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
131 .driver_info = (kernel_ulong_t)&palm_os_4_probe },
132 { },
133 { }
134};
135
136static struct usb_device_id clie_id_3_5_table [] = {
137 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
138 { }
139};
140
141static struct usb_device_id id_table_combined [] = {
142 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
143 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
144 { USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
145 { USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
146 { USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
147 { USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
148 { USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
149 { USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
150 { USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
151 { USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
152 { USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
153 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
154 { USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
155 { USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
156 { USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
157 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
158 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
159 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
160 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
161 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
162 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
163 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
164 { USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
165 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
166 { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
167 { USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
168 { USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
169 { USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
170 { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
171 { USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
172 { },
173 { }
174};
175
176MODULE_DEVICE_TABLE(usb, id_table_combined);
177
178static struct usb_driver visor_driver = {
179 .name = "visor",
180 .probe = usb_serial_probe,
181 .disconnect = usb_serial_disconnect,
182 .id_table = id_table_combined,
183 .no_dynamic_id = 1,
184};
185
186
187
188static struct usb_serial_driver handspring_device = {
189 .driver = {
190 .owner = THIS_MODULE,
191 .name = "visor",
192 },
193 .description = "Handspring Visor / Palm OS",
194 .usb_driver = &visor_driver,
195 .id_table = id_table,
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 .release = visor_release,
205 .write = visor_write,
206 .write_room = visor_write_room,
207 .write_bulk_callback = visor_write_bulk_callback,
208 .read_bulk_callback = visor_read_bulk_callback,
209 .read_int_callback = visor_read_int_callback,
210};
211
212
213static struct usb_serial_driver clie_5_device = {
214 .driver = {
215 .owner = THIS_MODULE,
216 .name = "clie_5",
217 },
218 .description = "Sony Clie 5.0",
219 .usb_driver = &visor_driver,
220 .id_table = clie_id_5_table,
221 .num_ports = 2,
222 .open = visor_open,
223 .close = visor_close,
224 .throttle = visor_throttle,
225 .unthrottle = visor_unthrottle,
226 .attach = clie_5_attach,
227 .probe = visor_probe,
228 .calc_num_ports = visor_calc_num_ports,
229 .release = visor_release,
230 .write = visor_write,
231 .write_room = visor_write_room,
232 .write_bulk_callback = visor_write_bulk_callback,
233 .read_bulk_callback = visor_read_bulk_callback,
234 .read_int_callback = visor_read_int_callback,
235};
236
237
238static struct usb_serial_driver clie_3_5_device = {
239 .driver = {
240 .owner = THIS_MODULE,
241 .name = "clie_3.5",
242 },
243 .description = "Sony Clie 3.5",
244 .usb_driver = &visor_driver,
245 .id_table = clie_id_3_5_table,
246 .num_ports = 1,
247 .open = visor_open,
248 .close = visor_close,
249 .throttle = visor_throttle,
250 .unthrottle = visor_unthrottle,
251 .attach = clie_3_5_startup,
252 .release = visor_release,
253 .write = visor_write,
254 .write_room = visor_write_room,
255 .write_bulk_callback = visor_write_bulk_callback,
256 .read_bulk_callback = visor_read_bulk_callback,
257};
258
259struct visor_private {
260 spinlock_t lock;
261 int bytes_in;
262 int bytes_out;
263 int outstanding_urbs;
264 unsigned char throttled;
265 unsigned char actually_throttled;
266};
267
268
269#define URB_UPPER_LIMIT 42
270
271static int stats;
272
273
274
275
276static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
277{
278 struct usb_serial *serial = port->serial;
279 struct visor_private *priv = usb_get_serial_port_data(port);
280 unsigned long flags;
281 int result = 0;
282
283 dbg("%s - port %d", __func__, port->number);
284
285 if (!port->read_urb) {
286
287 dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
288 return -ENODEV;
289 }
290
291 spin_lock_irqsave(&priv->lock, flags);
292 priv->bytes_in = 0;
293 priv->bytes_out = 0;
294 priv->throttled = 0;
295 spin_unlock_irqrestore(&priv->lock, flags);
296
297
298 usb_fill_bulk_urb(port->read_urb, serial->dev,
299 usb_rcvbulkpipe(serial->dev,
300 port->bulk_in_endpointAddress),
301 port->read_urb->transfer_buffer,
302 port->read_urb->transfer_buffer_length,
303 visor_read_bulk_callback, port);
304 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
305 if (result) {
306 dev_err(&port->dev,
307 "%s - failed submitting read urb, error %d\n",
308 __func__, result);
309 goto exit;
310 }
311
312 if (port->interrupt_in_urb) {
313 dbg("%s - adding interrupt input for treo", __func__);
314 result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
315 if (result)
316 dev_err(&port->dev,
317 "%s - failed submitting interrupt urb, error %d\n",
318 __func__, result);
319 }
320exit:
321 return result;
322}
323
324
325static void visor_close(struct usb_serial_port *port)
326{
327 struct visor_private *priv = usb_get_serial_port_data(port);
328 unsigned char *transfer_buffer;
329
330 dbg("%s - port %d", __func__, port->number);
331
332
333 usb_kill_urb(port->read_urb);
334 usb_kill_urb(port->interrupt_in_urb);
335
336 mutex_lock(&port->serial->disc_mutex);
337 if (!port->serial->disconnected) {
338
339 transfer_buffer = kmalloc(0x12, GFP_KERNEL);
340 if (transfer_buffer) {
341 usb_control_msg(port->serial->dev,
342 usb_rcvctrlpipe(port->serial->dev, 0),
343 VISOR_CLOSE_NOTIFICATION, 0xc2,
344 0x0000, 0x0000,
345 transfer_buffer, 0x12, 300);
346 kfree(transfer_buffer);
347 }
348 }
349 mutex_unlock(&port->serial->disc_mutex);
350
351 if (stats)
352 dev_info(&port->dev, "Bytes In = %d Bytes Out = %d\n",
353 priv->bytes_in, priv->bytes_out);
354}
355
356
357static int visor_write(struct tty_struct *tty, struct usb_serial_port *port,
358 const unsigned char *buf, int count)
359{
360 struct visor_private *priv = usb_get_serial_port_data(port);
361 struct usb_serial *serial = port->serial;
362 struct urb *urb;
363 unsigned char *buffer;
364 unsigned long flags;
365 int status;
366
367 dbg("%s - port %d", __func__, port->number);
368
369 spin_lock_irqsave(&priv->lock, flags);
370 if (priv->outstanding_urbs > URB_UPPER_LIMIT) {
371 spin_unlock_irqrestore(&priv->lock, flags);
372 dbg("%s - write limit hit", __func__);
373 return 0;
374 }
375 priv->outstanding_urbs++;
376 spin_unlock_irqrestore(&priv->lock, flags);
377
378 buffer = kmalloc(count, GFP_ATOMIC);
379 if (!buffer) {
380 dev_err(&port->dev, "out of memory\n");
381 count = -ENOMEM;
382 goto error_no_buffer;
383 }
384
385 urb = usb_alloc_urb(0, GFP_ATOMIC);
386 if (!urb) {
387 dev_err(&port->dev, "no more free urbs\n");
388 count = -ENOMEM;
389 goto error_no_urb;
390 }
391
392 memcpy(buffer, buf, count);
393
394 usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
395
396 usb_fill_bulk_urb(urb, serial->dev,
397 usb_sndbulkpipe(serial->dev,
398 port->bulk_out_endpointAddress),
399 buffer, count,
400 visor_write_bulk_callback, port);
401
402
403 status = usb_submit_urb(urb, GFP_ATOMIC);
404 if (status) {
405 dev_err(&port->dev,
406 "%s - usb_submit_urb(write bulk) failed with status = %d\n",
407 __func__, status);
408 count = status;
409 goto error;
410 } else {
411 spin_lock_irqsave(&priv->lock, flags);
412 priv->bytes_out += count;
413 spin_unlock_irqrestore(&priv->lock, flags);
414 }
415
416
417
418 usb_free_urb(urb);
419
420 return count;
421error:
422 usb_free_urb(urb);
423error_no_urb:
424 kfree(buffer);
425error_no_buffer:
426 spin_lock_irqsave(&priv->lock, flags);
427 --priv->outstanding_urbs;
428 spin_unlock_irqrestore(&priv->lock, flags);
429 return count;
430}
431
432
433static int visor_write_room(struct tty_struct *tty)
434{
435 struct usb_serial_port *port = tty->driver_data;
436 struct visor_private *priv = usb_get_serial_port_data(port);
437 unsigned long flags;
438
439 dbg("%s - port %d", __func__, port->number);
440
441
442
443
444
445
446
447 spin_lock_irqsave(&priv->lock, flags);
448 if (priv->outstanding_urbs > URB_UPPER_LIMIT * 2 / 3) {
449 spin_unlock_irqrestore(&priv->lock, flags);
450 dbg("%s - write limit hit", __func__);
451 return 0;
452 }
453 spin_unlock_irqrestore(&priv->lock, flags);
454
455 return 2048;
456}
457
458
459static void visor_write_bulk_callback(struct urb *urb)
460{
461 struct usb_serial_port *port = urb->context;
462 struct visor_private *priv = usb_get_serial_port_data(port);
463 int status = urb->status;
464 unsigned long flags;
465
466
467 kfree(urb->transfer_buffer);
468
469 dbg("%s - port %d", __func__, port->number);
470
471 if (status)
472 dbg("%s - nonzero write bulk status received: %d",
473 __func__, status);
474
475 spin_lock_irqsave(&priv->lock, flags);
476 --priv->outstanding_urbs;
477 spin_unlock_irqrestore(&priv->lock, flags);
478
479 usb_serial_port_softint(port);
480}
481
482
483static void visor_read_bulk_callback(struct urb *urb)
484{
485 struct usb_serial_port *port = urb->context;
486 struct visor_private *priv = usb_get_serial_port_data(port);
487 unsigned char *data = urb->transfer_buffer;
488 int status = urb->status;
489 struct tty_struct *tty;
490 int result;
491 int available_room = 0;
492
493 dbg("%s - port %d", __func__, port->number);
494
495 if (status) {
496 dbg("%s - nonzero read bulk status received: %d",
497 __func__, status);
498 return;
499 }
500
501 usb_serial_debug_data(debug, &port->dev, __func__,
502 urb->actual_length, data);
503
504 if (urb->actual_length) {
505 tty = tty_port_tty_get(&port->port);
506 if (tty) {
507 tty_insert_flip_string(tty, data,
508 urb->actual_length);
509 tty_flip_buffer_push(tty);
510 tty_kref_put(tty);
511 }
512 spin_lock(&priv->lock);
513 if (tty)
514 priv->bytes_in += available_room;
515
516 } else {
517 spin_lock(&priv->lock);
518 }
519
520
521 if (!priv->throttled) {
522 usb_fill_bulk_urb(port->read_urb, port->serial->dev,
523 usb_rcvbulkpipe(port->serial->dev,
524 port->bulk_in_endpointAddress),
525 port->read_urb->transfer_buffer,
526 port->read_urb->transfer_buffer_length,
527 visor_read_bulk_callback, port);
528 result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
529 if (result)
530 dev_err(&port->dev,
531 "%s - failed resubmitting read urb, error %d\n",
532 __func__, result);
533 } else
534 priv->actually_throttled = 1;
535 spin_unlock(&priv->lock);
536}
537
538static void visor_read_int_callback(struct urb *urb)
539{
540 struct usb_serial_port *port = urb->context;
541 int status = urb->status;
542 int result;
543
544 switch (status) {
545 case 0:
546
547 break;
548 case -ECONNRESET:
549 case -ENOENT:
550 case -ESHUTDOWN:
551
552 dbg("%s - urb shutting down with status: %d",
553 __func__, status);
554 return;
555 default:
556 dbg("%s - nonzero urb status received: %d",
557 __func__, status);
558 goto exit;
559 }
560
561
562
563
564
565
566
567
568 usb_serial_debug_data(debug, &port->dev, __func__,
569 urb->actual_length, urb->transfer_buffer);
570
571exit:
572 result = usb_submit_urb(urb, GFP_ATOMIC);
573 if (result)
574 dev_err(&urb->dev->dev,
575 "%s - Error %d submitting interrupt urb\n",
576 __func__, result);
577}
578
579static void visor_throttle(struct tty_struct *tty)
580{
581 struct usb_serial_port *port = tty->driver_data;
582 struct visor_private *priv = usb_get_serial_port_data(port);
583
584 dbg("%s - port %d", __func__, port->number);
585 spin_lock_irq(&priv->lock);
586 priv->throttled = 1;
587 spin_unlock_irq(&priv->lock);
588}
589
590
591static void visor_unthrottle(struct tty_struct *tty)
592{
593 struct usb_serial_port *port = tty->driver_data;
594 struct visor_private *priv = usb_get_serial_port_data(port);
595 int result, was_throttled;
596
597 dbg("%s - port %d", __func__, port->number);
598 spin_lock_irq(&priv->lock);
599 priv->throttled = 0;
600 was_throttled = priv->actually_throttled;
601 priv->actually_throttled = 0;
602 spin_unlock_irq(&priv->lock);
603
604 if (was_throttled) {
605 port->read_urb->dev = port->serial->dev;
606 result = usb_submit_urb(port->read_urb, GFP_KERNEL);
607 if (result)
608 dev_err(&port->dev,
609 "%s - failed submitting read urb, error %d\n",
610 __func__, result);
611 }
612}
613
614static int palm_os_3_probe(struct usb_serial *serial,
615 const struct usb_device_id *id)
616{
617 struct device *dev = &serial->dev->dev;
618 struct visor_connection_info *connection_info;
619 unsigned char *transfer_buffer;
620 char *string;
621 int retval = 0;
622 int i;
623 int num_ports = 0;
624
625 dbg("%s", __func__);
626
627 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
628 if (!transfer_buffer) {
629 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
630 sizeof(*connection_info));
631 return -ENOMEM;
632 }
633
634
635 retval = usb_control_msg(serial->dev,
636 usb_rcvctrlpipe(serial->dev, 0),
637 VISOR_GET_CONNECTION_INFORMATION,
638 0xc2, 0x0000, 0x0000, transfer_buffer,
639 sizeof(*connection_info), 300);
640 if (retval < 0) {
641 dev_err(dev, "%s - error %d getting connection information\n",
642 __func__, retval);
643 goto exit;
644 }
645
646 if (retval == sizeof(*connection_info)) {
647 connection_info = (struct visor_connection_info *)
648 transfer_buffer;
649
650 num_ports = le16_to_cpu(connection_info->num_ports);
651 for (i = 0; i < num_ports; ++i) {
652 switch (
653 connection_info->connections[i].port_function_id) {
654 case VISOR_FUNCTION_GENERIC:
655 string = "Generic";
656 break;
657 case VISOR_FUNCTION_DEBUGGER:
658 string = "Debugger";
659 break;
660 case VISOR_FUNCTION_HOTSYNC:
661 string = "HotSync";
662 break;
663 case VISOR_FUNCTION_CONSOLE:
664 string = "Console";
665 break;
666 case VISOR_FUNCTION_REMOTE_FILE_SYS:
667 string = "Remote File System";
668 break;
669 default:
670 string = "unknown";
671 break;
672 }
673 dev_info(dev, "%s: port %d, is for %s use\n",
674 serial->type->description,
675 connection_info->connections[i].port, string);
676 }
677 }
678
679
680
681 if (num_ports == 0 || num_ports > 2) {
682 dev_warn(dev, "%s: No valid connect info available\n",
683 serial->type->description);
684 num_ports = 2;
685 }
686
687 dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
688 num_ports);
689
690
691
692
693
694 usb_set_serial_data(serial, (void *)(long)num_ports);
695
696
697
698 retval = usb_control_msg(serial->dev,
699 usb_rcvctrlpipe(serial->dev, 0),
700 VISOR_REQUEST_BYTES_AVAILABLE,
701 0xc2, 0x0000, 0x0005, transfer_buffer,
702 0x02, 300);
703 if (retval < 0)
704 dev_err(dev, "%s - error %d getting bytes available request\n",
705 __func__, retval);
706 retval = 0;
707
708exit:
709 kfree(transfer_buffer);
710
711 return retval;
712}
713
714static int palm_os_4_probe(struct usb_serial *serial,
715 const struct usb_device_id *id)
716{
717 struct device *dev = &serial->dev->dev;
718 struct palm_ext_connection_info *connection_info;
719 unsigned char *transfer_buffer;
720 int retval;
721
722 dbg("%s", __func__);
723
724 transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
725 if (!transfer_buffer) {
726 dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
727 sizeof(*connection_info));
728 return -ENOMEM;
729 }
730
731 retval = usb_control_msg(serial->dev,
732 usb_rcvctrlpipe(serial->dev, 0),
733 PALM_GET_EXT_CONNECTION_INFORMATION,
734 0xc2, 0x0000, 0x0000, transfer_buffer,
735 sizeof(*connection_info), 300);
736 if (retval < 0)
737 dev_err(dev, "%s - error %d getting connection info\n",
738 __func__, retval);
739 else
740 usb_serial_debug_data(debug, &serial->dev->dev, __func__,
741 retval, transfer_buffer);
742
743 kfree(transfer_buffer);
744 return 0;
745}
746
747
748static int visor_probe(struct usb_serial *serial,
749 const struct usb_device_id *id)
750{
751 int retval = 0;
752 int (*startup)(struct usb_serial *serial,
753 const struct usb_device_id *id);
754
755 dbg("%s", __func__);
756
757 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
758 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
759 serial->dev->actconfig->desc.bConfigurationValue);
760 return -ENODEV;
761 }
762
763 if (id->driver_info) {
764 startup = (void *)id->driver_info;
765 retval = startup(serial, id);
766 }
767
768 return retval;
769}
770
771static int visor_calc_num_ports(struct usb_serial *serial)
772{
773 int num_ports = (int)(long)(usb_get_serial_data(serial));
774
775 if (num_ports)
776 usb_set_serial_data(serial, NULL);
777
778 return num_ports;
779}
780
781static int generic_startup(struct usb_serial *serial)
782{
783 struct usb_serial_port **ports = serial->port;
784 struct visor_private *priv;
785 int i;
786
787 for (i = 0; i < serial->num_ports; ++i) {
788 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
789 if (!priv) {
790 while (i-- != 0) {
791 priv = usb_get_serial_port_data(ports[i]);
792 usb_set_serial_port_data(ports[i], NULL);
793 kfree(priv);
794 }
795 return -ENOMEM;
796 }
797 spin_lock_init(&priv->lock);
798 usb_set_serial_port_data(ports[i], priv);
799 }
800 return 0;
801}
802
803static int clie_3_5_startup(struct usb_serial *serial)
804{
805 struct device *dev = &serial->dev->dev;
806 int result;
807 u8 *data;
808
809 dbg("%s", __func__);
810
811 data = kmalloc(1, GFP_KERNEL);
812 if (!data)
813 return -ENOMEM;
814
815
816
817
818
819
820 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
821 USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
822 0, 0, data, 1, 3000);
823 if (result < 0) {
824 dev_err(dev, "%s: get config number failed: %d\n",
825 __func__, result);
826 goto out;
827 }
828 if (result != 1) {
829 dev_err(dev, "%s: get config number bad return length: %d\n",
830 __func__, result);
831 result = -EIO;
832 goto out;
833 }
834
835
836 result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
837 USB_REQ_GET_INTERFACE,
838 USB_DIR_IN | USB_RECIP_INTERFACE,
839 0, 0, data, 1, 3000);
840 if (result < 0) {
841 dev_err(dev, "%s: get interface number failed: %d\n",
842 __func__, result);
843 goto out;
844 }
845 if (result != 1) {
846 dev_err(dev,
847 "%s: get interface number bad return length: %d\n",
848 __func__, result);
849 result = -EIO;
850 goto out;
851 }
852
853 result = generic_startup(serial);
854out:
855 kfree(data);
856
857 return result;
858}
859
860static int treo_attach(struct usb_serial *serial)
861{
862 struct usb_serial_port *swap_port;
863
864
865
866 if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
867 == HANDSPRING_VENDOR_ID) ||
868 (le16_to_cpu(serial->dev->descriptor.idVendor)
869 == KYOCERA_VENDOR_ID)) ||
870 (serial->num_interrupt_in == 0))
871 goto generic_startup;
872
873 dbg("%s", __func__);
874
875
876
877
878
879
880
881
882#define COPY_PORT(dest, src) \
883 do { \
884 dest->read_urb = src->read_urb; \
885 dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
886 dest->bulk_in_buffer = src->bulk_in_buffer; \
887 dest->interrupt_in_urb = src->interrupt_in_urb; \
888 dest->interrupt_in_endpointAddress = \
889 src->interrupt_in_endpointAddress;\
890 dest->interrupt_in_buffer = src->interrupt_in_buffer; \
891 } while (0);
892
893 swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
894 if (!swap_port)
895 return -ENOMEM;
896 COPY_PORT(swap_port, serial->port[0]);
897 COPY_PORT(serial->port[0], serial->port[1]);
898 COPY_PORT(serial->port[1], swap_port);
899 kfree(swap_port);
900
901generic_startup:
902 return generic_startup(serial);
903}
904
905static int clie_5_attach(struct usb_serial *serial)
906{
907 dbg("%s", __func__);
908
909
910
911
912
913
914
915
916
917
918 if (serial->num_ports < 2)
919 return -1;
920
921
922 serial->port[0]->bulk_out_endpointAddress =
923 serial->port[1]->bulk_out_endpointAddress;
924
925 return generic_startup(serial);
926}
927
928static void visor_release(struct usb_serial *serial)
929{
930 struct visor_private *priv;
931 int i;
932
933 dbg("%s", __func__);
934
935 for (i = 0; i < serial->num_ports; i++) {
936 priv = usb_get_serial_port_data(serial->port[i]);
937 kfree(priv);
938 }
939}
940
941static int __init visor_init(void)
942{
943 int i, retval;
944
945 if (vendor > 0 && product > 0) {
946 struct usb_device_id usb_dev_temp[] = {
947 {
948 USB_DEVICE(vendor, product),
949 .driver_info =
950 (kernel_ulong_t) &palm_os_4_probe
951 }
952 };
953
954
955 for (i = 0;; i++) {
956 if (id_table[i].idVendor == 0) {
957 id_table[i] = usb_dev_temp[0];
958 break;
959 }
960 }
961
962 for (i = 0;; i++) {
963 if (id_table_combined[i].idVendor == 0) {
964 id_table_combined[i] = usb_dev_temp[0];
965 break;
966 }
967 }
968 printk(KERN_INFO KBUILD_MODNAME
969 ": Untested USB device specified at time of module insertion\n");
970 printk(KERN_INFO KBUILD_MODNAME
971 ": Warning: This is not guaranteed to work\n");
972 printk(KERN_INFO KBUILD_MODNAME
973 ": Using a newer kernel is preferred to this method\n");
974 printk(KERN_INFO KBUILD_MODNAME
975 ": Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x\n",
976 vendor, product);
977 }
978 retval = usb_serial_register(&handspring_device);
979 if (retval)
980 goto failed_handspring_register;
981 retval = usb_serial_register(&clie_3_5_device);
982 if (retval)
983 goto failed_clie_3_5_register;
984 retval = usb_serial_register(&clie_5_device);
985 if (retval)
986 goto failed_clie_5_register;
987 retval = usb_register(&visor_driver);
988 if (retval)
989 goto failed_usb_register;
990 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
991
992 return 0;
993failed_usb_register:
994 usb_serial_deregister(&clie_5_device);
995failed_clie_5_register:
996 usb_serial_deregister(&clie_3_5_device);
997failed_clie_3_5_register:
998 usb_serial_deregister(&handspring_device);
999failed_handspring_register:
1000 return retval;
1001}
1002
1003
1004static void __exit visor_exit (void)
1005{
1006 usb_deregister(&visor_driver);
1007 usb_serial_deregister(&handspring_device);
1008 usb_serial_deregister(&clie_3_5_device);
1009 usb_serial_deregister(&clie_5_device);
1010}
1011
1012
1013module_init(visor_init);
1014module_exit(visor_exit);
1015
1016MODULE_AUTHOR(DRIVER_AUTHOR);
1017MODULE_DESCRIPTION(DRIVER_DESC);
1018MODULE_LICENSE("GPL");
1019
1020module_param(debug, bool, S_IRUGO | S_IWUSR);
1021MODULE_PARM_DESC(debug, "Debug enabled or not");
1022module_param(stats, bool, S_IRUGO | S_IWUSR);
1023MODULE_PARM_DESC(stats, "Enables statistics or not");
1024
1025module_param(vendor, ushort, 0);
1026MODULE_PARM_DESC(vendor, "User specified vendor ID");
1027module_param(product, ushort, 0);
1028MODULE_PARM_DESC(product, "User specified product ID");
1029
1030
