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