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Linux 2.6.26-rc5
[linux-2.6/openmoko-kernel/knife-kernel.git] / drivers / usb / serial / keyspan.c
blob3df8a66c5c3cd7ea57449069fa651c3643815352
1 /*
2 Keyspan USB to Serial Converter driver
3
4 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 See http://misc.nu/hugh/keyspan.html for more information.
13
14 Code in this driver inspired by and in a number of places taken
15 from Brian Warner's original Keyspan-PDA driver.
16
17 This driver has been put together with the support of Innosys, Inc.
18 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
19 Thanks Guys :)
20
21 Thanks to Paulus for miscellaneous tidy ups, some largish chunks
22 of much nicer and/or completely new code and (perhaps most uniquely)
23 having the patience to sit down and explain why and where he'd changed
24 stuff.
25
26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
27 staff in their work on open source projects.
28
29 Change History
30
31 2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
32 Improve setup message handling for all devices.
33
34 Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
35 Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
36 Linux source tree. The Linux tree lacked support for the 49WLC and
37 others. The Keyspan patches didn't work with the current kernel.
38
39 2003jan30 LPM add support for the 49WLC and MPR
40
41 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
42 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
43 now supported (including QI and QW). Modified port open, port
44 close, and send setup() logic to fix various data and endpoint
45 synchronization bugs and device LED status bugs. Changed keyspan_
46 write_room() to accurately return transmit buffer availability.
47 Changed forwardingLength from 1 to 16 for all adapters.
48
49 Fri Oct 12 16:45:00 EST 2001
50 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
51
52 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
53 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
54 now supported (including QI and QW). Modified port open, port
55 close, and send setup() logic to fix various data and endpoint
56 synchronization bugs and device LED status bugs. Changed keyspan_
57 write_room() to accurately return transmit buffer availability.
58 Changed forwardingLength from 1 to 16 for all adapters.
59
60 Fri Oct 12 16:45:00 EST 2001
61 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
62
63 Mon Oct 8 14:29:00 EST 2001 hugh
64 Fixed bug that prevented mulitport devices operating correctly
65 if they weren't the first unit attached.
66
67 Sat Oct 6 12:31:21 EST 2001 hugh
68 Added support for USA-28XA and -28XB, misc cleanups, break support
69 for usa26 based models thanks to David Gibson.
70
71 Thu May 31 11:56:42 PDT 2001 gkh
72 switched from using spinlock to a semaphore
73
74 (04/08/2001) gb
75 Identify version on module load.
76
77 (11/01/2000) Adam J. Richter
78 usb_device_id table support.
79
80 Tue Oct 10 23:15:33 EST 2000 Hugh
81 Merged Paul's changes with my USA-49W mods. Work in progress
82 still...
83
84 Wed Jul 19 14:00:42 EST 2000 gkh
85 Added module_init and module_exit functions to handle the fact that
86 this driver is a loadable module now.
87
88 Tue Jul 18 16:14:52 EST 2000 Hugh
89 Basic character input/output for USA-19 now mostly works,
90 fixed at 9600 baud for the moment.
91
92 Sat Jul 8 11:11:48 EST 2000 Hugh
93 First public release - nothing works except the firmware upload.
94 Tested on PPC and x86 architectures, seems to behave...
95 */
96
97
98 #include <linux/kernel.h>
99 #include <linux/jiffies.h>
100 #include <linux/errno.h>
101 #include <linux/init.h>
102 #include <linux/slab.h>
103 #include <linux/tty.h>
104 #include <linux/tty_driver.h>
105 #include <linux/tty_flip.h>
106 #include <linux/module.h>
107 #include <linux/spinlock.h>
108 #include <asm/uaccess.h>
109 #include <linux/usb.h>
110 #include <linux/usb/serial.h>
111 #include "keyspan.h"
112
113 static int debug;
114
115 /*
116 * Version Information
117 */
118 #define DRIVER_VERSION "v1.1.5"
119 #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
120 #define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
121
122 #define INSTAT_BUFLEN 32
123 #define GLOCONT_BUFLEN 64
124 #define INDAT49W_BUFLEN 512
125
126 /* Per device and per port private data */
127 struct keyspan_serial_private {
128 const struct keyspan_device_details *device_details;
129
130 struct urb *instat_urb;
131 char instat_buf[INSTAT_BUFLEN];
132
133 /* added to support 49wg, where data from all 4 ports comes in on 1 EP */
134 /* and high-speed supported */
135 struct urb *indat_urb;
136 char indat_buf[INDAT49W_BUFLEN];
137
138 /* XXX this one probably will need a lock */
139 struct urb *glocont_urb;
140 char glocont_buf[GLOCONT_BUFLEN];
141 char ctrl_buf[8]; // for EP0 control message
142 };
143
144 struct keyspan_port_private {
145 /* Keep track of which input & output endpoints to use */
146 int in_flip;
147 int out_flip;
148
149 /* Keep duplicate of device details in each port
150 structure as well - simplifies some of the
151 callback functions etc. */
152 const struct keyspan_device_details *device_details;
153
154 /* Input endpoints and buffer for this port */
155 struct urb *in_urbs[2];
156 char in_buffer[2][64];
157 /* Output endpoints and buffer for this port */
158 struct urb *out_urbs[2];
159 char out_buffer[2][64];
160
161 /* Input ack endpoint */
162 struct urb *inack_urb;
163 char inack_buffer[1];
164
165 /* Output control endpoint */
166 struct urb *outcont_urb;
167 char outcont_buffer[64];
168
169 /* Settings for the port */
170 int baud;
171 int old_baud;
172 unsigned int cflag;
173 unsigned int old_cflag;
174 enum {flow_none, flow_cts, flow_xon} flow_control;
175 int rts_state; /* Handshaking pins (outputs) */
176 int dtr_state;
177 int cts_state; /* Handshaking pins (inputs) */
178 int dsr_state;
179 int dcd_state;
180 int ri_state;
181 int break_on;
182
183 unsigned long tx_start_time[2];
184 int resend_cont; /* need to resend control packet */
185 };
186
187
188 /* Include Keyspan message headers. All current Keyspan Adapters
189 make use of one of five message formats which are referred
190 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and within this driver. */
191 #include "keyspan_usa26msg.h"
192 #include "keyspan_usa28msg.h"
193 #include "keyspan_usa49msg.h"
194 #include "keyspan_usa90msg.h"
195 #include "keyspan_usa67msg.h"
196
197
198 /* Functions used by new usb-serial code. */
199 static int __init keyspan_init (void)
200 {
201 int retval;
202 retval = usb_serial_register(&keyspan_pre_device);
203 if (retval)
204 goto failed_pre_device_register;
205 retval = usb_serial_register(&keyspan_1port_device);
206 if (retval)
207 goto failed_1port_device_register;
208 retval = usb_serial_register(&keyspan_2port_device);
209 if (retval)
210 goto failed_2port_device_register;
211 retval = usb_serial_register(&keyspan_4port_device);
212 if (retval)
213 goto failed_4port_device_register;
214 retval = usb_register(&keyspan_driver);
215 if (retval)
216 goto failed_usb_register;
217
218 info(DRIVER_VERSION ":" DRIVER_DESC);
219
220 return 0;
221 failed_usb_register:
222 usb_serial_deregister(&keyspan_4port_device);
223 failed_4port_device_register:
224 usb_serial_deregister(&keyspan_2port_device);
225 failed_2port_device_register:
226 usb_serial_deregister(&keyspan_1port_device);
227 failed_1port_device_register:
228 usb_serial_deregister(&keyspan_pre_device);
229 failed_pre_device_register:
230 return retval;
231 }
232
233 static void __exit keyspan_exit (void)
234 {
235 usb_deregister (&keyspan_driver);
236 usb_serial_deregister (&keyspan_pre_device);
237 usb_serial_deregister (&keyspan_1port_device);
238 usb_serial_deregister (&keyspan_2port_device);
239 usb_serial_deregister (&keyspan_4port_device);
240 }
241
242 module_init(keyspan_init);
243 module_exit(keyspan_exit);
244
245 static void keyspan_rx_throttle (struct usb_serial_port *port)
246 {
247 dbg("%s - port %d", __func__, port->number);
248 }
249
250
251 static void keyspan_rx_unthrottle (struct usb_serial_port *port)
252 {
253 dbg("%s - port %d", __func__, port->number);
254 }
255
256
257 static void keyspan_break_ctl (struct usb_serial_port *port, int break_state)
258 {
259 struct keyspan_port_private *p_priv;
260
261 dbg("%s", __func__);
262
263 p_priv = usb_get_serial_port_data(port);
264
265 if (break_state == -1)
266 p_priv->break_on = 1;
267 else
268 p_priv->break_on = 0;
269
270 keyspan_send_setup(port, 0);
271 }
272
273
274 static void keyspan_set_termios (struct usb_serial_port *port,
275 struct ktermios *old_termios)
276 {
277 int baud_rate, device_port;
278 struct keyspan_port_private *p_priv;
279 const struct keyspan_device_details *d_details;
280 unsigned int cflag;
281 struct tty_struct *tty = port->tty;
282
283 dbg("%s", __func__);
284
285 p_priv = usb_get_serial_port_data(port);
286 d_details = p_priv->device_details;
287 cflag = tty->termios->c_cflag;
288 device_port = port->number - port->serial->minor;
289
290 /* Baud rate calculation takes baud rate as an integer
291 so other rates can be generated if desired. */
292 baud_rate = tty_get_baud_rate(tty);
293 /* If no match or invalid, don't change */
294 if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
295 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
296 /* FIXME - more to do here to ensure rate changes cleanly */
297 /* FIXME - calcuate exact rate from divisor ? */
298 p_priv->baud = baud_rate;
299 } else
300 baud_rate = tty_termios_baud_rate(old_termios);
301
302 tty_encode_baud_rate(tty, baud_rate, baud_rate);
303 /* set CTS/RTS handshake etc. */
304 p_priv->cflag = cflag;
305 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
306
307 /* Mark/Space not supported */
308 tty->termios->c_cflag &= ~CMSPAR;
309
310 keyspan_send_setup(port, 0);
311 }
312
313 static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file)
314 {
315 unsigned int value;
316 struct keyspan_port_private *p_priv;
317
318 p_priv = usb_get_serial_port_data(port);
319
320 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
321 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
322 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
323 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
324 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
325 ((p_priv->ri_state) ? TIOCM_RNG : 0);
326
327 return value;
328 }
329
330 static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file,
331 unsigned int set, unsigned int clear)
332 {
333 struct keyspan_port_private *p_priv;
334
335 p_priv = usb_get_serial_port_data(port);
336
337 if (set & TIOCM_RTS)
338 p_priv->rts_state = 1;
339 if (set & TIOCM_DTR)
340 p_priv->dtr_state = 1;
341
342 if (clear & TIOCM_RTS)
343 p_priv->rts_state = 0;
344 if (clear & TIOCM_DTR)
345 p_priv->dtr_state = 0;
346 keyspan_send_setup(port, 0);
347 return 0;
348 }
349
350 static int keyspan_ioctl(struct usb_serial_port *port, struct file *file,
351 unsigned int cmd, unsigned long arg)
352 {
353 return -ENOIOCTLCMD;
354 }
355
356 /* Write function is similar for the four protocols used
357 with only a minor change for usa90 (usa19hs) required */
358 static int keyspan_write(struct usb_serial_port *port,
359 const unsigned char *buf, int count)
360 {
361 struct keyspan_port_private *p_priv;
362 const struct keyspan_device_details *d_details;
363 int flip;
364 int left, todo;
365 struct urb *this_urb;
366 int err, maxDataLen, dataOffset;
367
368 p_priv = usb_get_serial_port_data(port);
369 d_details = p_priv->device_details;
370
371 if (d_details->msg_format == msg_usa90) {
372 maxDataLen = 64;
373 dataOffset = 0;
374 } else {
375 maxDataLen = 63;
376 dataOffset = 1;
377 }
378
379 dbg("%s - for port %d (%d chars), flip=%d",
380 __func__, port->number, count, p_priv->out_flip);
381
382 for (left = count; left > 0; left -= todo) {
383 todo = left;
384 if (todo > maxDataLen)
385 todo = maxDataLen;
386
387 flip = p_priv->out_flip;
388
389 /* Check we have a valid urb/endpoint before we use it... */
390 if ((this_urb = p_priv->out_urbs[flip]) == NULL) {
391 /* no bulk out, so return 0 bytes written */
392 dbg("%s - no output urb :(", __func__);
393 return count;
394 }
395
396 dbg("%s - endpoint %d flip %d", __func__, usb_pipeendpoint(this_urb->pipe), flip);
397
398 if (this_urb->status == -EINPROGRESS) {
399 if (time_before(jiffies, p_priv->tx_start_time[flip] + 10 * HZ))
400 break;
401 usb_unlink_urb(this_urb);
402 break;
403 }
404
405 /* First byte in buffer is "last flag" (except for usa19hx) - unused so
406 for now so set to zero */
407 ((char *)this_urb->transfer_buffer)[0] = 0;
408
409 memcpy (this_urb->transfer_buffer + dataOffset, buf, todo);
410 buf += todo;
411
412 /* send the data out the bulk port */
413 this_urb->transfer_buffer_length = todo + dataOffset;
414
415 this_urb->dev = port->serial->dev;
416 if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
417 dbg("usb_submit_urb(write bulk) failed (%d)", err);
418 }
419 p_priv->tx_start_time[flip] = jiffies;
420
421 /* Flip for next time if usa26 or usa28 interface
422 (not used on usa49) */
423 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
424 }
425
426 return count - left;
427 }
428
429 static void usa26_indat_callback(struct urb *urb)
430 {
431 int i, err;
432 int endpoint;
433 struct usb_serial_port *port;
434 struct tty_struct *tty;
435 unsigned char *data = urb->transfer_buffer;
436 int status = urb->status;
437
438 dbg ("%s", __func__);
439
440 endpoint = usb_pipeendpoint(urb->pipe);
441
442 if (status) {
443 dbg("%s - nonzero status: %x on endpoint %d.",
444 __func__, status, endpoint);
445 return;
446 }
447
448 port = urb->context;
449 tty = port->tty;
450 if (tty && urb->actual_length) {
451 /* 0x80 bit is error flag */
452 if ((data[0] & 0x80) == 0) {
453 /* no errors on individual bytes, only possible overrun err*/
454 if (data[0] & RXERROR_OVERRUN)
455 err = TTY_OVERRUN;
456 else err = 0;
457 for (i = 1; i < urb->actual_length ; ++i) {
458 tty_insert_flip_char(tty, data[i], err);
459 }
460 } else {
461 /* some bytes had errors, every byte has status */
462 dbg("%s - RX error!!!!", __func__);
463 for (i = 0; i + 1 < urb->actual_length; i += 2) {
464 int stat = data[i], flag = 0;
465 if (stat & RXERROR_OVERRUN)
466 flag |= TTY_OVERRUN;
467 if (stat & RXERROR_FRAMING)
468 flag |= TTY_FRAME;
469 if (stat & RXERROR_PARITY)
470 flag |= TTY_PARITY;
471 /* XXX should handle break (0x10) */
472 tty_insert_flip_char(tty, data[i+1], flag);
473 }
474 }
475 tty_flip_buffer_push(tty);
476 }
477
478 /* Resubmit urb so we continue receiving */
479 urb->dev = port->serial->dev;
480 if (port->open_count)
481 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
482 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
483 }
484 return;
485 }
486
487 /* Outdat handling is common for all devices */
488 static void usa2x_outdat_callback(struct urb *urb)
489 {
490 struct usb_serial_port *port;
491 struct keyspan_port_private *p_priv;
492
493 port = urb->context;
494 p_priv = usb_get_serial_port_data(port);
495 dbg ("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
496
497 if (port->open_count)
498 usb_serial_port_softint(port);
499 }
500
501 static void usa26_inack_callback(struct urb *urb)
502 {
503 dbg ("%s", __func__);
504
505 }
506
507 static void usa26_outcont_callback(struct urb *urb)
508 {
509 struct usb_serial_port *port;
510 struct keyspan_port_private *p_priv;
511
512 port = urb->context;
513 p_priv = usb_get_serial_port_data(port);
514
515 if (p_priv->resend_cont) {
516 dbg ("%s - sending setup", __func__);
517 keyspan_usa26_send_setup(port->serial, port, p_priv->resend_cont - 1);
518 }
519 }
520
521 static void usa26_instat_callback(struct urb *urb)
522 {
523 unsigned char *data = urb->transfer_buffer;
524 struct keyspan_usa26_portStatusMessage *msg;
525 struct usb_serial *serial;
526 struct usb_serial_port *port;
527 struct keyspan_port_private *p_priv;
528 int old_dcd_state, err;
529 int status = urb->status;
530
531 serial = urb->context;
532
533 if (status) {
534 dbg("%s - nonzero status: %x", __func__, status);
535 return;
536 }
537 if (urb->actual_length != 9) {
538 dbg("%s - %d byte report??", __func__, urb->actual_length);
539 goto exit;
540 }
541
542 msg = (struct keyspan_usa26_portStatusMessage *)data;
543
544 #if 0
545 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
546 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
547 msg->_txXoff, msg->rxEnabled, msg->controlResponse);
548 #endif
549
550 /* Now do something useful with the data */
551
552
553 /* Check port number from message and retrieve private data */
554 if (msg->port >= serial->num_ports) {
555 dbg ("%s - Unexpected port number %d", __func__, msg->port);
556 goto exit;
557 }
558 port = serial->port[msg->port];
559 p_priv = usb_get_serial_port_data(port);
560
561 /* Update handshaking pin state information */
562 old_dcd_state = p_priv->dcd_state;
563 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
564 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
565 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
566 p_priv->ri_state = ((msg->ri) ? 1 : 0);
567
568 if (port->tty && !C_CLOCAL(port->tty)
569 && old_dcd_state != p_priv->dcd_state) {
570 if (old_dcd_state)
571 tty_hangup(port->tty);
572 /* else */
573 /* wake_up_interruptible(&p_priv->open_wait); */
574 }
575
576 /* Resubmit urb so we continue receiving */
577 urb->dev = serial->dev;
578 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
579 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
580 }
581 exit: ;
582 }
583
584 static void usa26_glocont_callback(struct urb *urb)
585 {
586 dbg ("%s", __func__);
587
588 }
589
590
591 static void usa28_indat_callback(struct urb *urb)
592 {
593 int i, err;
594 struct usb_serial_port *port;
595 struct tty_struct *tty;
596 unsigned char *data;
597 struct keyspan_port_private *p_priv;
598 int status = urb->status;
599
600 dbg ("%s", __func__);
601
602 port = urb->context;
603 p_priv = usb_get_serial_port_data(port);
604 data = urb->transfer_buffer;
605
606 if (urb != p_priv->in_urbs[p_priv->in_flip])
607 return;
608
609 do {
610 if (status) {
611 dbg("%s - nonzero status: %x on endpoint %d.",
612 __func__, status, usb_pipeendpoint(urb->pipe));
613 return;
614 }
615
616 port = urb->context;
617 p_priv = usb_get_serial_port_data(port);
618 data = urb->transfer_buffer;
619
620 tty = port->tty;
621 if (urb->actual_length) {
622 for (i = 0; i < urb->actual_length ; ++i) {
623 tty_insert_flip_char(tty, data[i], 0);
624 }
625 tty_flip_buffer_push(tty);
626 }
627
628 /* Resubmit urb so we continue receiving */
629 urb->dev = port->serial->dev;
630 if (port->open_count)
631 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
632 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
633 }
634 p_priv->in_flip ^= 1;
635
636 urb = p_priv->in_urbs[p_priv->in_flip];
637 } while (urb->status != -EINPROGRESS);
638 }
639
640 static void usa28_inack_callback(struct urb *urb)
641 {
642 dbg ("%s", __func__);
643 }
644
645 static void usa28_outcont_callback(struct urb *urb)
646 {
647 struct usb_serial_port *port;
648 struct keyspan_port_private *p_priv;
649
650 port = urb->context;
651 p_priv = usb_get_serial_port_data(port);
652
653 if (p_priv->resend_cont) {
654 dbg ("%s - sending setup", __func__);
655 keyspan_usa28_send_setup(port->serial, port, p_priv->resend_cont - 1);
656 }
657 }
658
659 static void usa28_instat_callback(struct urb *urb)
660 {
661 int err;
662 unsigned char *data = urb->transfer_buffer;
663 struct keyspan_usa28_portStatusMessage *msg;
664 struct usb_serial *serial;
665 struct usb_serial_port *port;
666 struct keyspan_port_private *p_priv;
667 int old_dcd_state;
668 int status = urb->status;
669
670 serial = urb->context;
671
672 if (status) {
673 dbg("%s - nonzero status: %x", __func__, status);
674 return;
675 }
676
677 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
678 dbg("%s - bad length %d", __func__, urb->actual_length);
679 goto exit;
680 }
681
682 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
683 data[0], data[1], data[2], data[3], data[4], data[5],
684 data[6], data[7], data[8], data[9], data[10], data[11]);*/
685
686 /* Now do something useful with the data */
687 msg = (struct keyspan_usa28_portStatusMessage *)data;
688
689
690 /* Check port number from message and retrieve private data */
691 if (msg->port >= serial->num_ports) {
692 dbg ("%s - Unexpected port number %d", __func__, msg->port);
693 goto exit;
694 }
695 port = serial->port[msg->port];
696 p_priv = usb_get_serial_port_data(port);
697
698 /* Update handshaking pin state information */
699 old_dcd_state = p_priv->dcd_state;
700 p_priv->cts_state = ((msg->cts) ? 1 : 0);
701 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
702 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
703 p_priv->ri_state = ((msg->ri) ? 1 : 0);
704
705 if (port->tty && !C_CLOCAL(port->tty)
706 && old_dcd_state != p_priv->dcd_state) {
707 if (old_dcd_state)
708 tty_hangup(port->tty);
709 /* else */
710 /* wake_up_interruptible(&p_priv->open_wait); */
711 }
712
713 /* Resubmit urb so we continue receiving */
714 urb->dev = serial->dev;
715 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
716 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
717 }
718 exit: ;
719 }
720
721 static void usa28_glocont_callback(struct urb *urb)
722 {
723 dbg ("%s", __func__);
724 }
725
726
727 static void usa49_glocont_callback(struct urb *urb)
728 {
729 struct usb_serial *serial;
730 struct usb_serial_port *port;
731 struct keyspan_port_private *p_priv;
732 int i;
733
734 dbg ("%s", __func__);
735
736 serial = urb->context;
737 for (i = 0; i < serial->num_ports; ++i) {
738 port = serial->port[i];
739 p_priv = usb_get_serial_port_data(port);
740
741 if (p_priv->resend_cont) {
742 dbg ("%s - sending setup", __func__);
743 keyspan_usa49_send_setup(serial, port, p_priv->resend_cont - 1);
744 break;
745 }
746 }
747 }
748
749 /* This is actually called glostat in the Keyspan
750 doco */
751 static void usa49_instat_callback(struct urb *urb)
752 {
753 int err;
754 unsigned char *data = urb->transfer_buffer;
755 struct keyspan_usa49_portStatusMessage *msg;
756 struct usb_serial *serial;
757 struct usb_serial_port *port;
758 struct keyspan_port_private *p_priv;
759 int old_dcd_state;
760 int status = urb->status;
761
762 dbg ("%s", __func__);
763
764 serial = urb->context;
765
766 if (status) {
767 dbg("%s - nonzero status: %x", __func__, status);
768 return;
769 }
770
771 if (urb->actual_length != sizeof(struct keyspan_usa49_portStatusMessage)) {
772 dbg("%s - bad length %d", __func__, urb->actual_length);
773 goto exit;
774 }
775
776 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
777 data[0], data[1], data[2], data[3], data[4], data[5],
778 data[6], data[7], data[8], data[9], data[10]);*/
779
780 /* Now do something useful with the data */
781 msg = (struct keyspan_usa49_portStatusMessage *)data;
782
783 /* Check port number from message and retrieve private data */
784 if (msg->portNumber >= serial->num_ports) {
785 dbg ("%s - Unexpected port number %d", __func__, msg->portNumber);
786 goto exit;
787 }
788 port = serial->port[msg->portNumber];
789 p_priv = usb_get_serial_port_data(port);
790
791 /* Update handshaking pin state information */
792 old_dcd_state = p_priv->dcd_state;
793 p_priv->cts_state = ((msg->cts) ? 1 : 0);
794 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
795 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
796 p_priv->ri_state = ((msg->ri) ? 1 : 0);
797
798 if (port->tty && !C_CLOCAL(port->tty)
799 && old_dcd_state != p_priv->dcd_state) {
800 if (old_dcd_state)
801 tty_hangup(port->tty);
802 /* else */
803 /* wake_up_interruptible(&p_priv->open_wait); */
804 }
805
806 /* Resubmit urb so we continue receiving */
807 urb->dev = serial->dev;
808
809 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
810 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
811 }
812 exit: ;
813 }
814
815 static void usa49_inack_callback(struct urb *urb)
816 {
817 dbg ("%s", __func__);
818 }
819
820 static void usa49_indat_callback(struct urb *urb)
821 {
822 int i, err;
823 int endpoint;
824 struct usb_serial_port *port;
825 struct tty_struct *tty;
826 unsigned char *data = urb->transfer_buffer;
827 int status = urb->status;
828
829 dbg ("%s", __func__);
830
831 endpoint = usb_pipeendpoint(urb->pipe);
832
833 if (status) {
834 dbg("%s - nonzero status: %x on endpoint %d.", __func__,
835 status, endpoint);
836 return;
837 }
838
839 port = urb->context;
840 tty = port->tty;
841 if (tty && urb->actual_length) {
842 /* 0x80 bit is error flag */
843 if ((data[0] & 0x80) == 0) {
844 /* no error on any byte */
845 for (i = 1; i < urb->actual_length ; ++i) {
846 tty_insert_flip_char(tty, data[i], 0);
847 }
848 } else {
849 /* some bytes had errors, every byte has status */
850 for (i = 0; i + 1 < urb->actual_length; i += 2) {
851 int stat = data[i], flag = 0;
852 if (stat & RXERROR_OVERRUN)
853 flag |= TTY_OVERRUN;
854 if (stat & RXERROR_FRAMING)
855 flag |= TTY_FRAME;
856 if (stat & RXERROR_PARITY)
857 flag |= TTY_PARITY;
858 /* XXX should handle break (0x10) */
859 tty_insert_flip_char(tty, data[i+1], flag);
860 }
861 }
862 tty_flip_buffer_push(tty);
863 }
864
865 /* Resubmit urb so we continue receiving */
866 urb->dev = port->serial->dev;
867 if (port->open_count)
868 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
869 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
870 }
871 }
872
873 static void usa49wg_indat_callback(struct urb *urb)
874 {
875 int i, len, x, err;
876 struct usb_serial *serial;
877 struct usb_serial_port *port;
878 struct tty_struct *tty;
879 unsigned char *data = urb->transfer_buffer;
880 int status = urb->status;
881
882 dbg ("%s", __func__);
883
884 serial = urb->context;
885
886 if (status) {
887 dbg("%s - nonzero status: %x", __func__, status);
888 return;
889 }
890
891 /* inbound data is in the form P#, len, status, data */
892 i = 0;
893 len = 0;
894
895 if (urb->actual_length) {
896 while (i < urb->actual_length) {
897
898 /* Check port number from message*/
899 if (data[i] >= serial->num_ports) {
900 dbg ("%s - Unexpected port number %d",
901 __func__, data[i]);
902 return;
903 }
904 port = serial->port[data[i++]];
905 tty = port->tty;
906 len = data[i++];
907
908 /* 0x80 bit is error flag */
909 if ((data[i] & 0x80) == 0) {
910 /* no error on any byte */
911 i++;
912 for (x = 1; x < len ; ++x)
913 if (port->open_count)
914 tty_insert_flip_char(tty,
915 data[i++], 0);
916 else
917 i++;
918 } else {
919 /*
920 * some bytes had errors, every byte has status
921 */
922 for (x = 0; x + 1 < len; x += 2) {
923 int stat = data[i], flag = 0;
924 if (stat & RXERROR_OVERRUN)
925 flag |= TTY_OVERRUN;
926 if (stat & RXERROR_FRAMING)
927 flag |= TTY_FRAME;
928 if (stat & RXERROR_PARITY)
929 flag |= TTY_PARITY;
930 /* XXX should handle break (0x10) */
931 if (port->open_count)
932 tty_insert_flip_char(tty,
933 data[i+1], flag);
934 i += 2;
935 }
936 }
937 if (port->open_count)
938 tty_flip_buffer_push(tty);
939 }
940 }
941
942 /* Resubmit urb so we continue receiving */
943 urb->dev = serial->dev;
944
945 err = usb_submit_urb(urb, GFP_ATOMIC);
946 if (err != 0)
947 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
948 }
949
950 /* not used, usa-49 doesn't have per-port control endpoints */
951 static void usa49_outcont_callback(struct urb *urb)
952 {
953 dbg ("%s", __func__);
954 }
955
956 static void usa90_indat_callback(struct urb *urb)
957 {
958 int i, err;
959 int endpoint;
960 struct usb_serial_port *port;
961 struct keyspan_port_private *p_priv;
962 struct tty_struct *tty;
963 unsigned char *data = urb->transfer_buffer;
964 int status = urb->status;
965
966 dbg ("%s", __func__);
967
968 endpoint = usb_pipeendpoint(urb->pipe);
969
970 if (status) {
971 dbg("%s - nonzero status: %x on endpoint %d.",
972 __func__, status, endpoint);
973 return;
974 }
975
976 port = urb->context;
977 p_priv = usb_get_serial_port_data(port);
978
979 tty = port->tty;
980 if (urb->actual_length) {
981
982 /* if current mode is DMA, looks like usa28 format
983 otherwise looks like usa26 data format */
984
985 if (p_priv->baud > 57600) {
986 for (i = 0; i < urb->actual_length ; ++i)
987 tty_insert_flip_char(tty, data[i], 0);
988 }
989 else {
990
991 /* 0x80 bit is error flag */
992 if ((data[0] & 0x80) == 0) {
993 /* no errors on individual bytes, only possible overrun err*/
994 if (data[0] & RXERROR_OVERRUN)
995 err = TTY_OVERRUN;
996 else err = 0;
997 for (i = 1; i < urb->actual_length ; ++i)
998 tty_insert_flip_char(tty, data[i], err);
999
1000 }
1001 else {
1002 /* some bytes had errors, every byte has status */
1003 dbg("%s - RX error!!!!", __func__);
1004 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1005 int stat = data[i], flag = 0;
1006 if (stat & RXERROR_OVERRUN)
1007 flag |= TTY_OVERRUN;
1008 if (stat & RXERROR_FRAMING)
1009 flag |= TTY_FRAME;
1010 if (stat & RXERROR_PARITY)
1011 flag |= TTY_PARITY;
1012 /* XXX should handle break (0x10) */
1013 tty_insert_flip_char(tty, data[i+1], flag);
1014 }
1015 }
1016 }
1017 tty_flip_buffer_push(tty);
1018 }
1019
1020 /* Resubmit urb so we continue receiving */
1021 urb->dev = port->serial->dev;
1022 if (port->open_count)
1023 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
1024 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1025 }
1026 return;
1027 }
1028
1029
1030 static void usa90_instat_callback(struct urb *urb)
1031 {
1032 unsigned char *data = urb->transfer_buffer;
1033 struct keyspan_usa90_portStatusMessage *msg;
1034 struct usb_serial *serial;
1035 struct usb_serial_port *port;
1036 struct keyspan_port_private *p_priv;
1037 int old_dcd_state, err;
1038 int status = urb->status;
1039
1040 serial = urb->context;
1041
1042 if (status) {
1043 dbg("%s - nonzero status: %x", __func__, status);
1044 return;
1045 }
1046 if (urb->actual_length < 14) {
1047 dbg("%s - %d byte report??", __func__, urb->actual_length);
1048 goto exit;
1049 }
1050
1051 msg = (struct keyspan_usa90_portStatusMessage *)data;
1052
1053 /* Now do something useful with the data */
1054
1055 port = serial->port[0];
1056 p_priv = usb_get_serial_port_data(port);
1057
1058 /* Update handshaking pin state information */
1059 old_dcd_state = p_priv->dcd_state;
1060 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1061 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1062 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1063 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1064
1065 if (port->tty && !C_CLOCAL(port->tty)
1066 && old_dcd_state != p_priv->dcd_state) {
1067 if (old_dcd_state)
1068 tty_hangup(port->tty);
1069 /* else */
1070 /* wake_up_interruptible(&p_priv->open_wait); */
1071 }
1072
1073 /* Resubmit urb so we continue receiving */
1074 urb->dev = serial->dev;
1075 if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
1076 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1077 }
1078 exit:
1079 ;
1080 }
1081
1082 static void usa90_outcont_callback(struct urb *urb)
1083 {
1084 struct usb_serial_port *port;
1085 struct keyspan_port_private *p_priv;
1086
1087 port = urb->context;
1088 p_priv = usb_get_serial_port_data(port);
1089
1090 if (p_priv->resend_cont) {
1091 dbg ("%s - sending setup", __func__);
1092 keyspan_usa90_send_setup(port->serial, port, p_priv->resend_cont - 1);
1093 }
1094 }
1095
1096 /* Status messages from the 28xg */
1097 static void usa67_instat_callback(struct urb *urb)
1098 {
1099 int err;
1100 unsigned char *data = urb->transfer_buffer;
1101 struct keyspan_usa67_portStatusMessage *msg;
1102 struct usb_serial *serial;
1103 struct usb_serial_port *port;
1104 struct keyspan_port_private *p_priv;
1105 int old_dcd_state;
1106 int status = urb->status;
1107
1108 dbg ("%s", __func__);
1109
1110 serial = urb->context;
1111
1112 if (status) {
1113 dbg("%s - nonzero status: %x", __func__, status);
1114 return;
1115 }
1116
1117 if (urb->actual_length != sizeof(struct keyspan_usa67_portStatusMessage)) {
1118 dbg("%s - bad length %d", __func__, urb->actual_length);
1119 return;
1120 }
1121
1122
1123 /* Now do something useful with the data */
1124 msg = (struct keyspan_usa67_portStatusMessage *)data;
1125
1126 /* Check port number from message and retrieve private data */
1127 if (msg->port >= serial->num_ports) {
1128 dbg ("%s - Unexpected port number %d", __func__, msg->port);
1129 return;
1130 }
1131
1132 port = serial->port[msg->port];
1133 p_priv = usb_get_serial_port_data(port);
1134
1135 /* Update handshaking pin state information */
1136 old_dcd_state = p_priv->dcd_state;
1137 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1138 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1139
1140 if (port->tty && !C_CLOCAL(port->tty)
1141 && old_dcd_state != p_priv->dcd_state) {
1142 if (old_dcd_state)
1143 tty_hangup(port->tty);
1144 /* else */
1145 /* wake_up_interruptible(&p_priv->open_wait); */
1146 }
1147
1148 /* Resubmit urb so we continue receiving */
1149 urb->dev = serial->dev;
1150 err = usb_submit_urb(urb, GFP_ATOMIC);
1151 if (err != 0)
1152 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1153 }
1154
1155 static void usa67_glocont_callback(struct urb *urb)
1156 {
1157 struct usb_serial *serial;
1158 struct usb_serial_port *port;
1159 struct keyspan_port_private *p_priv;
1160 int i;
1161
1162 dbg ("%s", __func__);
1163
1164 serial = urb->context;
1165 for (i = 0; i < serial->num_ports; ++i) {
1166 port = serial->port[i];
1167 p_priv = usb_get_serial_port_data(port);
1168
1169 if (p_priv->resend_cont) {
1170 dbg ("%s - sending setup", __func__);
1171 keyspan_usa67_send_setup(serial, port,
1172 p_priv->resend_cont - 1);
1173 break;
1174 }
1175 }
1176 }
1177
1178 static int keyspan_write_room (struct usb_serial_port *port)
1179 {
1180 struct keyspan_port_private *p_priv;
1181 const struct keyspan_device_details *d_details;
1182 int flip;
1183 int data_len;
1184 struct urb *this_urb;
1185
1186 dbg("%s", __func__);
1187 p_priv = usb_get_serial_port_data(port);
1188 d_details = p_priv->device_details;
1189
1190 /* FIXME: locking */
1191 if (d_details->msg_format == msg_usa90)
1192 data_len = 64;
1193 else
1194 data_len = 63;
1195
1196 flip = p_priv->out_flip;
1197
1198 /* Check both endpoints to see if any are available. */
1199 if ((this_urb = p_priv->out_urbs[flip]) != NULL) {
1200 if (this_urb->status != -EINPROGRESS)
1201 return (data_len);
1202 flip = (flip + 1) & d_details->outdat_endp_flip;
1203 if ((this_urb = p_priv->out_urbs[flip]) != NULL)
1204 if (this_urb->status != -EINPROGRESS)
1205 return (data_len);
1206 }
1207 return 0;
1208 }
1209
1210
1211 static int keyspan_chars_in_buffer (struct usb_serial_port *port)
1212 {
1213 return 0;
1214 }
1215
1216
1217 static int keyspan_open (struct usb_serial_port *port, struct file *filp)
1218 {
1219 struct keyspan_port_private *p_priv;
1220 struct keyspan_serial_private *s_priv;
1221 struct usb_serial *serial = port->serial;
1222 const struct keyspan_device_details *d_details;
1223 int i, err;
1224 int baud_rate, device_port;
1225 struct urb *urb;
1226 unsigned int cflag;
1227
1228 s_priv = usb_get_serial_data(serial);
1229 p_priv = usb_get_serial_port_data(port);
1230 d_details = p_priv->device_details;
1231
1232 dbg("%s - port%d.", __func__, port->number);
1233
1234 /* Set some sane defaults */
1235 p_priv->rts_state = 1;
1236 p_priv->dtr_state = 1;
1237 p_priv->baud = 9600;
1238
1239 /* force baud and lcr to be set on open */
1240 p_priv->old_baud = 0;
1241 p_priv->old_cflag = 0;
1242
1243 p_priv->out_flip = 0;
1244 p_priv->in_flip = 0;
1245
1246 /* Reset low level data toggle and start reading from endpoints */
1247 for (i = 0; i < 2; i++) {
1248 if ((urb = p_priv->in_urbs[i]) == NULL)
1249 continue;
1250 urb->dev = serial->dev;
1251
1252 /* make sure endpoint data toggle is synchronized with the device */
1253
1254 usb_clear_halt(urb->dev, urb->pipe);
1255
1256 if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) {
1257 dbg("%s - submit urb %d failed (%d)", __func__, i, err);
1258 }
1259 }
1260
1261 /* Reset low level data toggle on out endpoints */
1262 for (i = 0; i < 2; i++) {
1263 if ((urb = p_priv->out_urbs[i]) == NULL)
1264 continue;
1265 urb->dev = serial->dev;
1266 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
1267 }
1268
1269 /* get the terminal config for the setup message now so we don't
1270 * need to send 2 of them */
1271
1272 cflag = port->tty->termios->c_cflag;
1273 device_port = port->number - port->serial->minor;
1274
1275 /* Baud rate calculation takes baud rate as an integer
1276 so other rates can be generated if desired. */
1277 baud_rate = tty_get_baud_rate(port->tty);
1278 /* If no match or invalid, leave as default */
1279 if (baud_rate >= 0
1280 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
1281 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1282 p_priv->baud = baud_rate;
1283 }
1284
1285 /* set CTS/RTS handshake etc. */
1286 p_priv->cflag = cflag;
1287 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1288
1289 keyspan_send_setup(port, 1);
1290 //mdelay(100);
1291 //keyspan_set_termios(port, NULL);
1292
1293 return 0;
1294 }
1295
1296 static inline void stop_urb(struct urb *urb)
1297 {
1298 if (urb && urb->status == -EINPROGRESS)
1299 usb_kill_urb(urb);
1300 }
1301
1302 static void keyspan_close(struct usb_serial_port *port, struct file *filp)
1303 {
1304 int i;
1305 struct usb_serial *serial = port->serial;
1306 struct keyspan_serial_private *s_priv;
1307 struct keyspan_port_private *p_priv;
1308
1309 dbg("%s", __func__);
1310 s_priv = usb_get_serial_data(serial);
1311 p_priv = usb_get_serial_port_data(port);
1312
1313 p_priv->rts_state = 0;
1314 p_priv->dtr_state = 0;
1315
1316 if (serial->dev) {
1317 keyspan_send_setup(port, 2);
1318 /* pilot-xfer seems to work best with this delay */
1319 mdelay(100);
1320 // keyspan_set_termios(port, NULL);
1321 }
1322
1323 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
1324 dbg("%s - urb in progress", __func__);
1325 }*/
1326
1327 p_priv->out_flip = 0;
1328 p_priv->in_flip = 0;
1329
1330 if (serial->dev) {
1331 /* Stop reading/writing urbs */
1332 stop_urb(p_priv->inack_urb);
1333 /* stop_urb(p_priv->outcont_urb); */
1334 for (i = 0; i < 2; i++) {
1335 stop_urb(p_priv->in_urbs[i]);
1336 stop_urb(p_priv->out_urbs[i]);
1337 }
1338 }
1339 port->tty = NULL;
1340 }
1341
1342
1343 /* download the firmware to a pre-renumeration device */
1344 static int keyspan_fake_startup (struct usb_serial *serial)
1345 {
1346 int response;
1347 const struct ezusb_hex_record *record;
1348 char *fw_name;
1349
1350 dbg("Keyspan startup version %04x product %04x",
1351 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1352 le16_to_cpu(serial->dev->descriptor.idProduct));
1353
1354 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) != 0x8000) {
1355 dbg("Firmware already loaded. Quitting.");
1356 return(1);
1357 }
1358
1359 /* Select firmware image on the basis of idProduct */
1360 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1361 case keyspan_usa28_pre_product_id:
1362 record = &keyspan_usa28_firmware[0];
1363 fw_name = "USA28";
1364 break;
1365
1366 case keyspan_usa28x_pre_product_id:
1367 record = &keyspan_usa28x_firmware[0];
1368 fw_name = "USA28X";
1369 break;
1370
1371 case keyspan_usa28xa_pre_product_id:
1372 record = &keyspan_usa28xa_firmware[0];
1373 fw_name = "USA28XA";
1374 break;
1375
1376 case keyspan_usa28xb_pre_product_id:
1377 record = &keyspan_usa28xb_firmware[0];
1378 fw_name = "USA28XB";
1379 break;
1380
1381 case keyspan_usa19_pre_product_id:
1382 record = &keyspan_usa19_firmware[0];
1383 fw_name = "USA19";
1384 break;
1385
1386 case keyspan_usa19qi_pre_product_id:
1387 record = &keyspan_usa19qi_firmware[0];
1388 fw_name = "USA19QI";
1389 break;
1390
1391 case keyspan_mpr_pre_product_id:
1392 record = &keyspan_mpr_firmware[0];
1393 fw_name = "MPR";
1394 break;
1395
1396 case keyspan_usa19qw_pre_product_id:
1397 record = &keyspan_usa19qw_firmware[0];
1398 fw_name = "USA19QI";
1399 break;
1400
1401 case keyspan_usa18x_pre_product_id:
1402 record = &keyspan_usa18x_firmware[0];
1403 fw_name = "USA18X";
1404 break;
1405
1406 case keyspan_usa19w_pre_product_id:
1407 record = &keyspan_usa19w_firmware[0];
1408 fw_name = "USA19W";
1409 break;
1410
1411 case keyspan_usa49w_pre_product_id:
1412 record = &keyspan_usa49w_firmware[0];
1413 fw_name = "USA49W";
1414 break;
1415
1416 case keyspan_usa49wlc_pre_product_id:
1417 record = &keyspan_usa49wlc_firmware[0];
1418 fw_name = "USA49WLC";
1419 break;
1420
1421 default:
1422 record = NULL;
1423 fw_name = "Unknown";
1424 break;
1425 }
1426
1427 if (record == NULL) {
1428 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1429 return(1);
1430 }
1431
1432 dbg("Uploading Keyspan %s firmware.", fw_name);
1433
1434 /* download the firmware image */
1435 response = ezusb_set_reset(serial, 1);
1436
1437 while(record->address != 0xffff) {
1438 response = ezusb_writememory(serial, record->address,
1439 (unsigned char *)record->data,
1440 record->data_size, 0xa0);
1441 if (response < 0) {
1442 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan"
1443 "firmware (%d %04X %p %d)\n",
1444 response,
1445 record->address, record->data, record->data_size);
1446 break;
1447 }
1448 record++;
1449 }
1450 /* bring device out of reset. Renumeration will occur in a
1451 moment and the new device will bind to the real driver */
1452 response = ezusb_set_reset(serial, 0);
1453
1454 /* we don't want this device to have a driver assigned to it. */
1455 return (1);
1456 }
1457
1458 /* Helper functions used by keyspan_setup_urbs */
1459 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1460 int endpoint)
1461 {
1462 struct usb_host_interface *iface_desc;
1463 struct usb_endpoint_descriptor *ep;
1464 int i;
1465
1466 iface_desc = serial->interface->cur_altsetting;
1467 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1468 ep = &iface_desc->endpoint[i].desc;
1469 if (ep->bEndpointAddress == endpoint)
1470 return ep;
1471 }
1472 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1473 "endpoint %x\n", endpoint);
1474 return NULL;
1475 }
1476
1477 static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint,
1478 int dir, void *ctx, char *buf, int len,
1479 void (*callback)(struct urb *))
1480 {
1481 struct urb *urb;
1482 struct usb_endpoint_descriptor const *ep_desc;
1483 char const *ep_type_name;
1484
1485 if (endpoint == -1)
1486 return NULL; /* endpoint not needed */
1487
1488 dbg ("%s - alloc for endpoint %d.", __func__, endpoint);
1489 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1490 if (urb == NULL) {
1491 dbg ("%s - alloc for endpoint %d failed.", __func__, endpoint);
1492 return NULL;
1493 }
1494
1495 if (endpoint == 0) {
1496 /* control EP filled in when used */
1497 return urb;
1498 }
1499
1500 ep_desc = find_ep(serial, endpoint);
1501 if (!ep_desc) {
1502 /* leak the urb, something's wrong and the callers don't care */
1503 return urb;
1504 }
1505 if (usb_endpoint_xfer_int(ep_desc)) {
1506 ep_type_name = "INT";
1507 usb_fill_int_urb(urb, serial->dev,
1508 usb_sndintpipe(serial->dev, endpoint) | dir,
1509 buf, len, callback, ctx,
1510 ep_desc->bInterval);
1511 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1512 ep_type_name = "BULK";
1513 usb_fill_bulk_urb(urb, serial->dev,
1514 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1515 buf, len, callback, ctx);
1516 } else {
1517 dev_warn(&serial->interface->dev,
1518 "unsupported endpoint type %x\n",
1519 ep_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1520 usb_free_urb(urb);
1521 return NULL;
1522 }
1523
1524 dbg("%s - using urb %p for %s endpoint %x",
1525 __func__, urb, ep_type_name, endpoint);
1526 return urb;
1527 }
1528
1529 static struct callbacks {
1530 void (*instat_callback)(struct urb *);
1531 void (*glocont_callback)(struct urb *);
1532 void (*indat_callback)(struct urb *);
1533 void (*outdat_callback)(struct urb *);
1534 void (*inack_callback)(struct urb *);
1535 void (*outcont_callback)(struct urb *);
1536 } keyspan_callbacks[] = {
1537 {
1538 /* msg_usa26 callbacks */
1539 .instat_callback = usa26_instat_callback,
1540 .glocont_callback = usa26_glocont_callback,
1541 .indat_callback = usa26_indat_callback,
1542 .outdat_callback = usa2x_outdat_callback,
1543 .inack_callback = usa26_inack_callback,
1544 .outcont_callback = usa26_outcont_callback,
1545 }, {
1546 /* msg_usa28 callbacks */
1547 .instat_callback = usa28_instat_callback,
1548 .glocont_callback = usa28_glocont_callback,
1549 .indat_callback = usa28_indat_callback,
1550 .outdat_callback = usa2x_outdat_callback,
1551 .inack_callback = usa28_inack_callback,
1552 .outcont_callback = usa28_outcont_callback,
1553 }, {
1554 /* msg_usa49 callbacks */
1555 .instat_callback = usa49_instat_callback,
1556 .glocont_callback = usa49_glocont_callback,
1557 .indat_callback = usa49_indat_callback,
1558 .outdat_callback = usa2x_outdat_callback,
1559 .inack_callback = usa49_inack_callback,
1560 .outcont_callback = usa49_outcont_callback,
1561 }, {
1562 /* msg_usa90 callbacks */
1563 .instat_callback = usa90_instat_callback,
1564 .glocont_callback = usa28_glocont_callback,
1565 .indat_callback = usa90_indat_callback,
1566 .outdat_callback = usa2x_outdat_callback,
1567 .inack_callback = usa28_inack_callback,
1568 .outcont_callback = usa90_outcont_callback,
1569 }, {
1570 /* msg_usa67 callbacks */
1571 .instat_callback = usa67_instat_callback,
1572 .glocont_callback = usa67_glocont_callback,
1573 .indat_callback = usa26_indat_callback,
1574 .outdat_callback = usa2x_outdat_callback,
1575 .inack_callback = usa26_inack_callback,
1576 .outcont_callback = usa26_outcont_callback,
1577 }
1578 };
1579
1580 /* Generic setup urbs function that uses
1581 data in device_details */
1582 static void keyspan_setup_urbs(struct usb_serial *serial)
1583 {
1584 int i, j;
1585 struct keyspan_serial_private *s_priv;
1586 const struct keyspan_device_details *d_details;
1587 struct usb_serial_port *port;
1588 struct keyspan_port_private *p_priv;
1589 struct callbacks *cback;
1590 int endp;
1591
1592 dbg ("%s", __func__);
1593
1594 s_priv = usb_get_serial_data(serial);
1595 d_details = s_priv->device_details;
1596
1597 /* Setup values for the various callback routines */
1598 cback = &keyspan_callbacks[d_details->msg_format];
1599
1600 /* Allocate and set up urbs for each one that is in use,
1601 starting with instat endpoints */
1602 s_priv->instat_urb = keyspan_setup_urb
1603 (serial, d_details->instat_endpoint, USB_DIR_IN,
1604 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1605 cback->instat_callback);
1606
1607 s_priv->indat_urb = keyspan_setup_urb
1608 (serial, d_details->indat_endpoint, USB_DIR_IN,
1609 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1610 usa49wg_indat_callback);
1611
1612 s_priv->glocont_urb = keyspan_setup_urb
1613 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1614 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1615 cback->glocont_callback);
1616
1617 /* Setup endpoints for each port specific thing */
1618 for (i = 0; i < d_details->num_ports; i ++) {
1619 port = serial->port[i];
1620 p_priv = usb_get_serial_port_data(port);
1621
1622 /* Do indat endpoints first, once for each flip */
1623 endp = d_details->indat_endpoints[i];
1624 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1625 p_priv->in_urbs[j] = keyspan_setup_urb
1626 (serial, endp, USB_DIR_IN, port,
1627 p_priv->in_buffer[j], 64,
1628 cback->indat_callback);
1629 }
1630 for (; j < 2; ++j)
1631 p_priv->in_urbs[j] = NULL;
1632
1633 /* outdat endpoints also have flip */
1634 endp = d_details->outdat_endpoints[i];
1635 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1636 p_priv->out_urbs[j] = keyspan_setup_urb
1637 (serial, endp, USB_DIR_OUT, port,
1638 p_priv->out_buffer[j], 64,
1639 cback->outdat_callback);
1640 }
1641 for (; j < 2; ++j)
1642 p_priv->out_urbs[j] = NULL;
1643
1644 /* inack endpoint */
1645 p_priv->inack_urb = keyspan_setup_urb
1646 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1647 port, p_priv->inack_buffer, 1, cback->inack_callback);
1648
1649 /* outcont endpoint */
1650 p_priv->outcont_urb = keyspan_setup_urb
1651 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1652 port, p_priv->outcont_buffer, 64,
1653 cback->outcont_callback);
1654 }
1655
1656 }
1657
1658 /* usa19 function doesn't require prescaler */
1659 static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1660 u8 *rate_low, u8 *prescaler, int portnum)
1661 {
1662 u32 b16, /* baud rate times 16 (actual rate used internally) */
1663 div, /* divisor */
1664 cnt; /* inverse of divisor (programmed into 8051) */
1665
1666 dbg ("%s - %d.", __func__, baud_rate);
1667
1668 /* prevent divide by zero... */
1669 if( (b16 = (baud_rate * 16L)) == 0) {
1670 return (KEYSPAN_INVALID_BAUD_RATE);
1671 }
1672
1673 /* Any "standard" rate over 57k6 is marginal on the USA-19
1674 as we run out of divisor resolution. */
1675 if (baud_rate > 57600) {
1676 return (KEYSPAN_INVALID_BAUD_RATE);
1677 }
1678
1679 /* calculate the divisor and the counter (its inverse) */
1680 if( (div = (baudclk / b16)) == 0) {
1681 return (KEYSPAN_INVALID_BAUD_RATE);
1682 }
1683 else {
1684 cnt = 0 - div;
1685 }
1686
1687 if(div > 0xffff) {
1688 return (KEYSPAN_INVALID_BAUD_RATE);
1689 }
1690
1691 /* return the counter values if non-null */
1692 if (rate_low) {
1693 *rate_low = (u8) (cnt & 0xff);
1694 }
1695 if (rate_hi) {
1696 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1697 }
1698 if (rate_low && rate_hi) {
1699 dbg ("%s - %d %02x %02x.", __func__, baud_rate, *rate_hi, *rate_low);
1700 }
1701
1702 return (KEYSPAN_BAUD_RATE_OK);
1703 }
1704
1705 /* usa19hs function doesn't require prescaler */
1706 static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1707 u8 *rate_low, u8 *prescaler, int portnum)
1708 {
1709 u32 b16, /* baud rate times 16 (actual rate used internally) */
1710 div; /* divisor */
1711
1712 dbg ("%s - %d.", __func__, baud_rate);
1713
1714 /* prevent divide by zero... */
1715 if( (b16 = (baud_rate * 16L)) == 0)
1716 return (KEYSPAN_INVALID_BAUD_RATE);
1717
1718
1719
1720 /* calculate the divisor */
1721 if( (div = (baudclk / b16)) == 0)
1722 return (KEYSPAN_INVALID_BAUD_RATE);
1723
1724 if(div > 0xffff)
1725 return (KEYSPAN_INVALID_BAUD_RATE);
1726
1727 /* return the counter values if non-null */
1728 if (rate_low)
1729 *rate_low = (u8) (div & 0xff);
1730
1731 if (rate_hi)
1732 *rate_hi = (u8) ((div >> 8) & 0xff);
1733
1734 if (rate_low && rate_hi)
1735 dbg ("%s - %d %02x %02x.", __func__, baud_rate, *rate_hi, *rate_low);
1736
1737 return (KEYSPAN_BAUD_RATE_OK);
1738 }
1739
1740 static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1741 u8 *rate_low, u8 *prescaler, int portnum)
1742 {
1743 u32 b16, /* baud rate times 16 (actual rate used internally) */
1744 clk, /* clock with 13/8 prescaler */
1745 div, /* divisor using 13/8 prescaler */
1746 res, /* resulting baud rate using 13/8 prescaler */
1747 diff, /* error using 13/8 prescaler */
1748 smallest_diff;
1749 u8 best_prescaler;
1750 int i;
1751
1752 dbg ("%s - %d.", __func__, baud_rate);
1753
1754 /* prevent divide by zero */
1755 if( (b16 = baud_rate * 16L) == 0) {
1756 return (KEYSPAN_INVALID_BAUD_RATE);
1757 }
1758
1759 /* Calculate prescaler by trying them all and looking
1760 for best fit */
1761
1762 /* start with largest possible difference */
1763 smallest_diff = 0xffffffff;
1764
1765 /* 0 is an invalid prescaler, used as a flag */
1766 best_prescaler = 0;
1767
1768 for(i = 8; i <= 0xff; ++i) {
1769 clk = (baudclk * 8) / (u32) i;
1770
1771 if( (div = clk / b16) == 0) {
1772 continue;
1773 }
1774
1775 res = clk / div;
1776 diff= (res > b16) ? (res-b16) : (b16-res);
1777
1778 if(diff < smallest_diff) {
1779 best_prescaler = i;
1780 smallest_diff = diff;
1781 }
1782 }
1783
1784 if(best_prescaler == 0) {
1785 return (KEYSPAN_INVALID_BAUD_RATE);
1786 }
1787
1788 clk = (baudclk * 8) / (u32) best_prescaler;
1789 div = clk / b16;
1790
1791 /* return the divisor and prescaler if non-null */
1792 if (rate_low) {
1793 *rate_low = (u8) (div & 0xff);
1794 }
1795 if (rate_hi) {
1796 *rate_hi = (u8) ((div >> 8) & 0xff);
1797 }
1798 if (prescaler) {
1799 *prescaler = best_prescaler;
1800 /* dbg("%s - %d %d", __func__, *prescaler, div); */
1801 }
1802 return (KEYSPAN_BAUD_RATE_OK);
1803 }
1804
1805 /* USA-28 supports different maximum baud rates on each port */
1806 static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1807 u8 *rate_low, u8 *prescaler, int portnum)
1808 {
1809 u32 b16, /* baud rate times 16 (actual rate used internally) */
1810 div, /* divisor */
1811 cnt; /* inverse of divisor (programmed into 8051) */
1812
1813 dbg ("%s - %d.", __func__, baud_rate);
1814
1815 /* prevent divide by zero */
1816 if ((b16 = baud_rate * 16L) == 0)
1817 return (KEYSPAN_INVALID_BAUD_RATE);
1818
1819 /* calculate the divisor and the counter (its inverse) */
1820 if ((div = (KEYSPAN_USA28_BAUDCLK / b16)) == 0) {
1821 return (KEYSPAN_INVALID_BAUD_RATE);
1822 }
1823 else {
1824 cnt = 0 - div;
1825 }
1826
1827 /* check for out of range, based on portnum,
1828 and return result */
1829 if(portnum == 0) {
1830 if(div > 0xffff)
1831 return (KEYSPAN_INVALID_BAUD_RATE);
1832 }
1833 else {
1834 if(portnum == 1) {
1835 if(div > 0xff) {
1836 return (KEYSPAN_INVALID_BAUD_RATE);
1837 }
1838 }
1839 else {
1840 return (KEYSPAN_INVALID_BAUD_RATE);
1841 }
1842 }
1843
1844 /* return the counter values if not NULL
1845 (port 1 will ignore retHi) */
1846 if (rate_low) {
1847 *rate_low = (u8) (cnt & 0xff);
1848 }
1849 if (rate_hi) {
1850 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1851 }
1852 dbg ("%s - %d OK.", __func__, baud_rate);
1853 return (KEYSPAN_BAUD_RATE_OK);
1854 }
1855
1856 static int keyspan_usa26_send_setup(struct usb_serial *serial,
1857 struct usb_serial_port *port,
1858 int reset_port)
1859 {
1860 struct keyspan_usa26_portControlMessage msg;
1861 struct keyspan_serial_private *s_priv;
1862 struct keyspan_port_private *p_priv;
1863 const struct keyspan_device_details *d_details;
1864 int outcont_urb;
1865 struct urb *this_urb;
1866 int device_port, err;
1867
1868 dbg ("%s reset=%d", __func__, reset_port);
1869
1870 s_priv = usb_get_serial_data(serial);
1871 p_priv = usb_get_serial_port_data(port);
1872 d_details = s_priv->device_details;
1873 device_port = port->number - port->serial->minor;
1874
1875 outcont_urb = d_details->outcont_endpoints[port->number];
1876 this_urb = p_priv->outcont_urb;
1877
1878 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
1879
1880 /* Make sure we have an urb then send the message */
1881 if (this_urb == NULL) {
1882 dbg("%s - oops no urb.", __func__);
1883 return -1;
1884 }
1885
1886 /* Save reset port val for resend.
1887 Don't overwrite resend for open/close condition. */
1888 if ((reset_port + 1) > p_priv->resend_cont)
1889 p_priv->resend_cont = reset_port + 1;
1890 if (this_urb->status == -EINPROGRESS) {
1891 /* dbg ("%s - already writing", __func__); */
1892 mdelay(5);
1893 return(-1);
1894 }
1895
1896 memset(&msg, 0, sizeof (struct keyspan_usa26_portControlMessage));
1897
1898 /* Only set baud rate if it's changed */
1899 if (p_priv->old_baud != p_priv->baud) {
1900 p_priv->old_baud = p_priv->baud;
1901 msg.setClocking = 0xff;
1902 if (d_details->calculate_baud_rate
1903 (p_priv->baud, d_details->baudclk, &msg.baudHi,
1904 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
1905 dbg("%s - Invalid baud rate %d requested, using 9600.", __func__,
1906 p_priv->baud);
1907 msg.baudLo = 0;
1908 msg.baudHi = 125; /* Values for 9600 baud */
1909 msg.prescaler = 10;
1910 }
1911 msg.setPrescaler = 0xff;
1912 }
1913
1914 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1915 switch (p_priv->cflag & CSIZE) {
1916 case CS5:
1917 msg.lcr |= USA_DATABITS_5;
1918 break;
1919 case CS6:
1920 msg.lcr |= USA_DATABITS_6;
1921 break;
1922 case CS7:
1923 msg.lcr |= USA_DATABITS_7;
1924 break;
1925 case CS8:
1926 msg.lcr |= USA_DATABITS_8;
1927 break;
1928 }
1929 if (p_priv->cflag & PARENB) {
1930 /* note USA_PARITY_NONE == 0 */
1931 msg.lcr |= (p_priv->cflag & PARODD)?
1932 USA_PARITY_ODD: USA_PARITY_EVEN;
1933 }
1934 msg.setLcr = 0xff;
1935
1936 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1937 msg.xonFlowControl = 0;
1938 msg.setFlowControl = 0xff;
1939 msg.forwardingLength = 16;
1940 msg.xonChar = 17;
1941 msg.xoffChar = 19;
1942
1943 /* Opening port */
1944 if (reset_port == 1) {
1945 msg._txOn = 1;
1946 msg._txOff = 0;
1947 msg.txFlush = 0;
1948 msg.txBreak = 0;
1949 msg.rxOn = 1;
1950 msg.rxOff = 0;
1951 msg.rxFlush = 1;
1952 msg.rxForward = 0;
1953 msg.returnStatus = 0;
1954 msg.resetDataToggle = 0xff;
1955 }
1956
1957 /* Closing port */
1958 else if (reset_port == 2) {
1959 msg._txOn = 0;
1960 msg._txOff = 1;
1961 msg.txFlush = 0;
1962 msg.txBreak = 0;
1963 msg.rxOn = 0;
1964 msg.rxOff = 1;
1965 msg.rxFlush = 1;
1966 msg.rxForward = 0;
1967 msg.returnStatus = 0;
1968 msg.resetDataToggle = 0;
1969 }
1970
1971 /* Sending intermediate configs */
1972 else {
1973 msg._txOn = (! p_priv->break_on);
1974 msg._txOff = 0;
1975 msg.txFlush = 0;
1976 msg.txBreak = (p_priv->break_on);
1977 msg.rxOn = 0;
1978 msg.rxOff = 0;
1979 msg.rxFlush = 0;
1980 msg.rxForward = 0;
1981 msg.returnStatus = 0;
1982 msg.resetDataToggle = 0x0;
1983 }
1984
1985 /* Do handshaking outputs */
1986 msg.setTxTriState_setRts = 0xff;
1987 msg.txTriState_rts = p_priv->rts_state;
1988
1989 msg.setHskoa_setDtr = 0xff;
1990 msg.hskoa_dtr = p_priv->dtr_state;
1991
1992 p_priv->resend_cont = 0;
1993 memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
1994
1995 /* send the data out the device on control endpoint */
1996 this_urb->transfer_buffer_length = sizeof(msg);
1997
1998 this_urb->dev = serial->dev;
1999 if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
2000 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2001 }
2002 #if 0
2003 else {
2004 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
2005 outcont_urb, this_urb->transfer_buffer_length,
2006 usb_pipeendpoint(this_urb->pipe));
2007 }
2008 #endif
2009
2010 return 0;
2011 }
2012
2013 static int keyspan_usa28_send_setup(struct usb_serial *serial,
2014 struct usb_serial_port *port,
2015 int reset_port)
2016 {
2017 struct keyspan_usa28_portControlMessage msg;
2018 struct keyspan_serial_private *s_priv;
2019 struct keyspan_port_private *p_priv;
2020 const struct keyspan_device_details *d_details;
2021 struct urb *this_urb;
2022 int device_port, err;
2023
2024 dbg ("%s", __func__);
2025
2026 s_priv = usb_get_serial_data(serial);
2027 p_priv = usb_get_serial_port_data(port);
2028 d_details = s_priv->device_details;
2029 device_port = port->number - port->serial->minor;
2030
2031 /* only do something if we have a bulk out endpoint */
2032 if ((this_urb = p_priv->outcont_urb) == NULL) {
2033 dbg("%s - oops no urb.", __func__);
2034 return -1;
2035 }
2036
2037 /* Save reset port val for resend.
2038 Don't overwrite resend for open/close condition. */
2039 if ((reset_port + 1) > p_priv->resend_cont)
2040 p_priv->resend_cont = reset_port + 1;
2041 if (this_urb->status == -EINPROGRESS) {
2042 dbg ("%s already writing", __func__);
2043 mdelay(5);
2044 return(-1);
2045 }
2046
2047 memset(&msg, 0, sizeof (struct keyspan_usa28_portControlMessage));
2048
2049 msg.setBaudRate = 1;
2050 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2051 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
2052 dbg("%s - Invalid baud rate requested %d.", __func__, p_priv->baud);
2053 msg.baudLo = 0xff;
2054 msg.baudHi = 0xb2; /* Values for 9600 baud */
2055 }
2056
2057 /* If parity is enabled, we must calculate it ourselves. */
2058 msg.parity = 0; /* XXX for now */
2059
2060 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2061 msg.xonFlowControl = 0;
2062
2063 /* Do handshaking outputs, DTR is inverted relative to RTS */
2064 msg.rts = p_priv->rts_state;
2065 msg.dtr = p_priv->dtr_state;
2066
2067 msg.forwardingLength = 16;
2068 msg.forwardMs = 10;
2069 msg.breakThreshold = 45;
2070 msg.xonChar = 17;
2071 msg.xoffChar = 19;
2072
2073 /*msg.returnStatus = 1;
2074 msg.resetDataToggle = 0xff;*/
2075 /* Opening port */
2076 if (reset_port == 1) {
2077 msg._txOn = 1;
2078 msg._txOff = 0;
2079 msg.txFlush = 0;
2080 msg.txForceXoff = 0;
2081 msg.txBreak = 0;
2082 msg.rxOn = 1;
2083 msg.rxOff = 0;
2084 msg.rxFlush = 1;
2085 msg.rxForward = 0;
2086 msg.returnStatus = 0;
2087 msg.resetDataToggle = 0xff;
2088 }
2089 /* Closing port */
2090 else if (reset_port == 2) {
2091 msg._txOn = 0;
2092 msg._txOff = 1;
2093 msg.txFlush = 0;
2094 msg.txForceXoff = 0;
2095 msg.txBreak = 0;
2096 msg.rxOn = 0;
2097 msg.rxOff = 1;
2098 msg.rxFlush = 1;
2099 msg.rxForward = 0;
2100 msg.returnStatus = 0;
2101 msg.resetDataToggle = 0;
2102 }
2103 /* Sending intermediate configs */
2104 else {
2105 msg._txOn = (! p_priv->break_on);
2106 msg._txOff = 0;
2107 msg.txFlush = 0;
2108 msg.txForceXoff = 0;
2109 msg.txBreak = (p_priv->break_on);
2110 msg.rxOn = 0;
2111 msg.rxOff = 0;
2112 msg.rxFlush = 0;
2113 msg.rxForward = 0;
2114 msg.returnStatus = 0;
2115 msg.resetDataToggle = 0x0;
2116 }
2117
2118 p_priv->resend_cont = 0;
2119 memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
2120
2121 /* send the data out the device on control endpoint */
2122 this_urb->transfer_buffer_length = sizeof(msg);
2123
2124 this_urb->dev = serial->dev;
2125 if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
2126 dbg("%s - usb_submit_urb(setup) failed", __func__);
2127 }
2128 #if 0
2129 else {
2130 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
2131 this_urb->transfer_buffer_length);
2132 }
2133 #endif
2134
2135 return 0;
2136 }
2137
2138 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2139 struct usb_serial_port *port,
2140 int reset_port)
2141 {
2142 struct keyspan_usa49_portControlMessage msg;
2143 struct usb_ctrlrequest *dr = NULL;
2144 struct keyspan_serial_private *s_priv;
2145 struct keyspan_port_private *p_priv;
2146 const struct keyspan_device_details *d_details;
2147 struct urb *this_urb;
2148 int err, device_port;
2149
2150 dbg ("%s", __func__);
2151
2152 s_priv = usb_get_serial_data(serial);
2153 p_priv = usb_get_serial_port_data(port);
2154 d_details = s_priv->device_details;
2155
2156 this_urb = s_priv->glocont_urb;
2157
2158 /* Work out which port within the device is being setup */
2159 device_port = port->number - port->serial->minor;
2160
2161 dbg("%s - endpoint %d port %d (%d)",__func__, usb_pipeendpoint(this_urb->pipe), port->number, device_port);
2162
2163 /* Make sure we have an urb then send the message */
2164 if (this_urb == NULL) {
2165 dbg("%s - oops no urb for port %d.", __func__, port->number);
2166 return -1;
2167 }
2168
2169 /* Save reset port val for resend.
2170 Don't overwrite resend for open/close condition. */
2171 if ((reset_port + 1) > p_priv->resend_cont)
2172 p_priv->resend_cont = reset_port + 1;
2173
2174 if (this_urb->status == -EINPROGRESS) {
2175 /* dbg ("%s - already writing", __func__); */
2176 mdelay(5);
2177 return(-1);
2178 }
2179
2180 memset(&msg, 0, sizeof (struct keyspan_usa49_portControlMessage));
2181
2182 /*msg.portNumber = port->number;*/
2183 msg.portNumber = device_port;
2184
2185 /* Only set baud rate if it's changed */
2186 if (p_priv->old_baud != p_priv->baud) {
2187 p_priv->old_baud = p_priv->baud;
2188 msg.setClocking = 0xff;
2189 if (d_details->calculate_baud_rate
2190 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2191 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
2192 dbg("%s - Invalid baud rate %d requested, using 9600.", __func__,
2193 p_priv->baud);
2194 msg.baudLo = 0;
2195 msg.baudHi = 125; /* Values for 9600 baud */
2196 msg.prescaler = 10;
2197 }
2198 //msg.setPrescaler = 0xff;
2199 }
2200
2201 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2202 switch (p_priv->cflag & CSIZE) {
2203 case CS5:
2204 msg.lcr |= USA_DATABITS_5;
2205 break;
2206 case CS6:
2207 msg.lcr |= USA_DATABITS_6;
2208 break;
2209 case CS7:
2210 msg.lcr |= USA_DATABITS_7;
2211 break;
2212 case CS8:
2213 msg.lcr |= USA_DATABITS_8;
2214 break;
2215 }
2216 if (p_priv->cflag & PARENB) {
2217 /* note USA_PARITY_NONE == 0 */
2218 msg.lcr |= (p_priv->cflag & PARODD)?
2219 USA_PARITY_ODD: USA_PARITY_EVEN;
2220 }
2221 msg.setLcr = 0xff;
2222
2223 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2224 msg.xonFlowControl = 0;
2225 msg.setFlowControl = 0xff;
2226
2227 msg.forwardingLength = 16;
2228 msg.xonChar = 17;
2229 msg.xoffChar = 19;
2230
2231 /* Opening port */
2232 if (reset_port == 1) {
2233 msg._txOn = 1;
2234 msg._txOff = 0;
2235 msg.txFlush = 0;
2236 msg.txBreak = 0;
2237 msg.rxOn = 1;
2238 msg.rxOff = 0;
2239 msg.rxFlush = 1;
2240 msg.rxForward = 0;
2241 msg.returnStatus = 0;
2242 msg.resetDataToggle = 0xff;
2243 msg.enablePort = 1;
2244 msg.disablePort = 0;
2245 }
2246 /* Closing port */
2247 else if (reset_port == 2) {
2248 msg._txOn = 0;
2249 msg._txOff = 1;
2250 msg.txFlush = 0;
2251 msg.txBreak = 0;
2252 msg.rxOn = 0;
2253 msg.rxOff = 1;
2254 msg.rxFlush = 1;
2255 msg.rxForward = 0;
2256 msg.returnStatus = 0;
2257 msg.resetDataToggle = 0;
2258 msg.enablePort = 0;
2259 msg.disablePort = 1;
2260 }
2261 /* Sending intermediate configs */
2262 else {
2263 msg._txOn = (! p_priv->break_on);
2264 msg._txOff = 0;
2265 msg.txFlush = 0;
2266 msg.txBreak = (p_priv->break_on);
2267 msg.rxOn = 0;
2268 msg.rxOff = 0;
2269 msg.rxFlush = 0;
2270 msg.rxForward = 0;
2271 msg.returnStatus = 0;
2272 msg.resetDataToggle = 0x0;
2273 msg.enablePort = 0;
2274 msg.disablePort = 0;
2275 }
2276
2277 /* Do handshaking outputs */
2278 msg.setRts = 0xff;
2279 msg.rts = p_priv->rts_state;
2280
2281 msg.setDtr = 0xff;
2282 msg.dtr = p_priv->dtr_state;
2283
2284 p_priv->resend_cont = 0;
2285
2286 /* if the device is a 49wg, we send control message on usb control EP 0 */
2287
2288 if (d_details->product_id == keyspan_usa49wg_product_id) {
2289 dr = (void *)(s_priv->ctrl_buf);
2290 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2291 dr->bRequest = 0xB0; /* 49wg control message */;
2292 dr->wValue = 0;
2293 dr->wIndex = 0;
2294 dr->wLength = cpu_to_le16(sizeof(msg));
2295
2296 memcpy (s_priv->glocont_buf, &msg, sizeof(msg));
2297
2298 usb_fill_control_urb(this_urb, serial->dev, usb_sndctrlpipe(serial->dev, 0),
2299 (unsigned char *)dr, s_priv->glocont_buf, sizeof(msg),
2300 usa49_glocont_callback, serial);
2301
2302 } else {
2303 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2304
2305 /* send the data out the device on control endpoint */
2306 this_urb->transfer_buffer_length = sizeof(msg);
2307
2308 this_urb->dev = serial->dev;
2309 }
2310 if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
2311 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2312 }
2313 #if 0
2314 else {
2315 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
2316 outcont_urb, this_urb->transfer_buffer_length,
2317 usb_pipeendpoint(this_urb->pipe));
2318 }
2319 #endif
2320
2321 return 0;
2322 }
2323
2324 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2325 struct usb_serial_port *port,
2326 int reset_port)
2327 {
2328 struct keyspan_usa90_portControlMessage msg;
2329 struct keyspan_serial_private *s_priv;
2330 struct keyspan_port_private *p_priv;
2331 const struct keyspan_device_details *d_details;
2332 struct urb *this_urb;
2333 int err;
2334 u8 prescaler;
2335
2336 dbg ("%s", __func__);
2337
2338 s_priv = usb_get_serial_data(serial);
2339 p_priv = usb_get_serial_port_data(port);
2340 d_details = s_priv->device_details;
2341
2342 /* only do something if we have a bulk out endpoint */
2343 if ((this_urb = p_priv->outcont_urb) == NULL) {
2344 dbg("%s - oops no urb.", __func__);
2345 return -1;
2346 }
2347
2348 /* Save reset port val for resend.
2349 Don't overwrite resend for open/close condition. */
2350 if ((reset_port + 1) > p_priv->resend_cont)
2351 p_priv->resend_cont = reset_port + 1;
2352 if (this_urb->status == -EINPROGRESS) {
2353 dbg ("%s already writing", __func__);
2354 mdelay(5);
2355 return(-1);
2356 }
2357
2358 memset(&msg, 0, sizeof (struct keyspan_usa90_portControlMessage));
2359
2360 /* Only set baud rate if it's changed */
2361 if (p_priv->old_baud != p_priv->baud) {
2362 p_priv->old_baud = p_priv->baud;
2363 msg.setClocking = 0x01;
2364 if (d_details->calculate_baud_rate
2365 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2366 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE ) {
2367 dbg("%s - Invalid baud rate %d requested, using 9600.", __func__,
2368 p_priv->baud);
2369 p_priv->baud = 9600;
2370 d_details->calculate_baud_rate (p_priv->baud, d_details->baudclk,
2371 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2372 }
2373 msg.setRxMode = 1;
2374 msg.setTxMode = 1;
2375 }
2376
2377 /* modes must always be correctly specified */
2378 if (p_priv->baud > 57600)
2379 {
2380 msg.rxMode = RXMODE_DMA;
2381 msg.txMode = TXMODE_DMA;
2382 }
2383 else
2384 {
2385 msg.rxMode = RXMODE_BYHAND;
2386 msg.txMode = TXMODE_BYHAND;
2387 }
2388
2389 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2390 switch (p_priv->cflag & CSIZE) {
2391 case CS5:
2392 msg.lcr |= USA_DATABITS_5;
2393 break;
2394 case CS6:
2395 msg.lcr |= USA_DATABITS_6;
2396 break;
2397 case CS7:
2398 msg.lcr |= USA_DATABITS_7;
2399 break;
2400 case CS8:
2401 msg.lcr |= USA_DATABITS_8;
2402 break;
2403 }
2404 if (p_priv->cflag & PARENB) {
2405 /* note USA_PARITY_NONE == 0 */
2406 msg.lcr |= (p_priv->cflag & PARODD)?
2407 USA_PARITY_ODD: USA_PARITY_EVEN;
2408 }
2409 if (p_priv->old_cflag != p_priv->cflag) {
2410 p_priv->old_cflag = p_priv->cflag;
2411 msg.setLcr = 0x01;
2412 }
2413
2414 if (p_priv->flow_control == flow_cts)
2415 msg.txFlowControl = TXFLOW_CTS;
2416 msg.setTxFlowControl = 0x01;
2417 msg.setRxFlowControl = 0x01;
2418
2419 msg.rxForwardingLength = 16;
2420 msg.rxForwardingTimeout = 16;
2421 msg.txAckSetting = 0;
2422 msg.xonChar = 17;
2423 msg.xoffChar = 19;
2424
2425 /* Opening port */
2426 if (reset_port == 1) {
2427 msg.portEnabled = 1;
2428 msg.rxFlush = 1;
2429 msg.txBreak = (p_priv->break_on);
2430 }
2431 /* Closing port */
2432 else if (reset_port == 2) {
2433 msg.portEnabled = 0;
2434 }
2435 /* Sending intermediate configs */
2436 else {
2437 if (port->open_count)
2438 msg.portEnabled = 1;
2439 msg.txBreak = (p_priv->break_on);
2440 }
2441
2442 /* Do handshaking outputs */
2443 msg.setRts = 0x01;
2444 msg.rts = p_priv->rts_state;
2445
2446 msg.setDtr = 0x01;
2447 msg.dtr = p_priv->dtr_state;
2448
2449 p_priv->resend_cont = 0;
2450 memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
2451
2452 /* send the data out the device on control endpoint */
2453 this_urb->transfer_buffer_length = sizeof(msg);
2454
2455 this_urb->dev = serial->dev;
2456 if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
2457 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2458 }
2459 return 0;
2460 }
2461
2462 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2463 struct usb_serial_port *port,
2464 int reset_port)
2465 {
2466 struct keyspan_usa67_portControlMessage msg;
2467 struct keyspan_serial_private *s_priv;
2468 struct keyspan_port_private *p_priv;
2469 const struct keyspan_device_details *d_details;
2470 struct urb *this_urb;
2471 int err, device_port;
2472
2473 dbg ("%s", __func__);
2474
2475 s_priv = usb_get_serial_data(serial);
2476 p_priv = usb_get_serial_port_data(port);
2477 d_details = s_priv->device_details;
2478
2479 this_urb = s_priv->glocont_urb;
2480
2481 /* Work out which port within the device is being setup */
2482 device_port = port->number - port->serial->minor;
2483
2484 /* Make sure we have an urb then send the message */
2485 if (this_urb == NULL) {
2486 dbg("%s - oops no urb for port %d.", __func__,
2487 port->number);
2488 return -1;
2489 }
2490
2491 /* Save reset port val for resend.
2492 Don't overwrite resend for open/close condition. */
2493 if ((reset_port + 1) > p_priv->resend_cont)
2494 p_priv->resend_cont = reset_port + 1;
2495 if (this_urb->status == -EINPROGRESS) {
2496 /* dbg ("%s - already writing", __func__); */
2497 mdelay(5);
2498 return(-1);
2499 }
2500
2501 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2502
2503 msg.port = device_port;
2504
2505 /* Only set baud rate if it's changed */
2506 if (p_priv->old_baud != p_priv->baud) {
2507 p_priv->old_baud = p_priv->baud;
2508 msg.setClocking = 0xff;
2509 if (d_details->calculate_baud_rate
2510 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2511 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
2512 dbg("%s - Invalid baud rate %d requested, using 9600.", __func__,
2513 p_priv->baud);
2514 msg.baudLo = 0;
2515 msg.baudHi = 125; /* Values for 9600 baud */
2516 msg.prescaler = 10;
2517 }
2518 msg.setPrescaler = 0xff;
2519 }
2520
2521 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2522 switch (p_priv->cflag & CSIZE) {
2523 case CS5:
2524 msg.lcr |= USA_DATABITS_5;
2525 break;
2526 case CS6:
2527 msg.lcr |= USA_DATABITS_6;
2528 break;
2529 case CS7:
2530 msg.lcr |= USA_DATABITS_7;
2531 break;
2532 case CS8:
2533 msg.lcr |= USA_DATABITS_8;
2534 break;
2535 }
2536 if (p_priv->cflag & PARENB) {
2537 /* note USA_PARITY_NONE == 0 */
2538 msg.lcr |= (p_priv->cflag & PARODD)?
2539 USA_PARITY_ODD: USA_PARITY_EVEN;
2540 }
2541 msg.setLcr = 0xff;
2542
2543 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2544 msg.xonFlowControl = 0;
2545 msg.setFlowControl = 0xff;
2546 msg.forwardingLength = 16;
2547 msg.xonChar = 17;
2548 msg.xoffChar = 19;
2549
2550 if (reset_port == 1) {
2551 /* Opening port */
2552 msg._txOn = 1;
2553 msg._txOff = 0;
2554 msg.txFlush = 0;
2555 msg.txBreak = 0;
2556 msg.rxOn = 1;
2557 msg.rxOff = 0;
2558 msg.rxFlush = 1;
2559 msg.rxForward = 0;
2560 msg.returnStatus = 0;
2561 msg.resetDataToggle = 0xff;
2562 } else if (reset_port == 2) {
2563 /* Closing port */
2564 msg._txOn = 0;
2565 msg._txOff = 1;
2566 msg.txFlush = 0;
2567 msg.txBreak = 0;
2568 msg.rxOn = 0;
2569 msg.rxOff = 1;
2570 msg.rxFlush = 1;
2571 msg.rxForward = 0;
2572 msg.returnStatus = 0;
2573 msg.resetDataToggle = 0;
2574 } else {
2575 /* Sending intermediate configs */
2576 msg._txOn = (! p_priv->break_on);
2577 msg._txOff = 0;
2578 msg.txFlush = 0;
2579 msg.txBreak = (p_priv->break_on);
2580 msg.rxOn = 0;
2581 msg.rxOff = 0;
2582 msg.rxFlush = 0;
2583 msg.rxForward = 0;
2584 msg.returnStatus = 0;
2585 msg.resetDataToggle = 0x0;
2586 }
2587
2588 /* Do handshaking outputs */
2589 msg.setTxTriState_setRts = 0xff;
2590 msg.txTriState_rts = p_priv->rts_state;
2591
2592 msg.setHskoa_setDtr = 0xff;
2593 msg.hskoa_dtr = p_priv->dtr_state;
2594
2595 p_priv->resend_cont = 0;
2596
2597 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2598
2599 /* send the data out the device on control endpoint */
2600 this_urb->transfer_buffer_length = sizeof(msg);
2601 this_urb->dev = serial->dev;
2602
2603 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2604 if (err != 0)
2605 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
2606 err);
2607 return 0;
2608 }
2609
2610 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2611 {
2612 struct usb_serial *serial = port->serial;
2613 struct keyspan_serial_private *s_priv;
2614 const struct keyspan_device_details *d_details;
2615
2616 dbg ("%s", __func__);
2617
2618 s_priv = usb_get_serial_data(serial);
2619 d_details = s_priv->device_details;
2620
2621 switch (d_details->msg_format) {
2622 case msg_usa26:
2623 keyspan_usa26_send_setup(serial, port, reset_port);
2624 break;
2625 case msg_usa28:
2626 keyspan_usa28_send_setup(serial, port, reset_port);
2627 break;
2628 case msg_usa49:
2629 keyspan_usa49_send_setup(serial, port, reset_port);
2630 break;
2631 case msg_usa90:
2632 keyspan_usa90_send_setup(serial, port, reset_port);
2633 break;
2634 case msg_usa67:
2635 keyspan_usa67_send_setup(serial, port, reset_port);
2636 break;
2637 }
2638 }
2639
2640
2641 /* Gets called by the "real" driver (ie once firmware is loaded
2642 and renumeration has taken place. */
2643 static int keyspan_startup (struct usb_serial *serial)
2644 {
2645 int i, err;
2646 struct usb_serial_port *port;
2647 struct keyspan_serial_private *s_priv;
2648 struct keyspan_port_private *p_priv;
2649 const struct keyspan_device_details *d_details;
2650
2651 dbg("%s", __func__);
2652
2653 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2654 if (d_details->product_id == le16_to_cpu(serial->dev->descriptor.idProduct))
2655 break;
2656 if (d_details == NULL) {
2657 dev_err(&serial->dev->dev, "%s - unknown product id %x\n", __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2658 return 1;
2659 }
2660
2661 /* Setup private data for serial driver */
2662 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2663 if (!s_priv) {
2664 dbg("%s - kmalloc for keyspan_serial_private failed.", __func__);
2665 return -ENOMEM;
2666 }
2667
2668 s_priv->device_details = d_details;
2669 usb_set_serial_data(serial, s_priv);
2670
2671 /* Now setup per port private data */
2672 for (i = 0; i < serial->num_ports; i++) {
2673 port = serial->port[i];
2674 p_priv = kzalloc(sizeof(struct keyspan_port_private), GFP_KERNEL);
2675 if (!p_priv) {
2676 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
2677 return (1);
2678 }
2679 p_priv->device_details = d_details;
2680 usb_set_serial_port_data(port, p_priv);
2681 }
2682
2683 keyspan_setup_urbs(serial);
2684
2685 if (s_priv->instat_urb != NULL) {
2686 s_priv->instat_urb->dev = serial->dev;
2687 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2688 if (err != 0)
2689 dbg("%s - submit instat urb failed %d", __func__,
2690 err);
2691 }
2692 if (s_priv->indat_urb != NULL) {
2693 s_priv->indat_urb->dev = serial->dev;
2694 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2695 if (err != 0)
2696 dbg("%s - submit indat urb failed %d", __func__,
2697 err);
2698 }
2699
2700 return 0;
2701 }
2702
2703 static void keyspan_shutdown (struct usb_serial *serial)
2704 {
2705 int i, j;
2706 struct usb_serial_port *port;
2707 struct keyspan_serial_private *s_priv;
2708 struct keyspan_port_private *p_priv;
2709
2710 dbg("%s", __func__);
2711
2712 s_priv = usb_get_serial_data(serial);
2713
2714 /* Stop reading/writing urbs */
2715 stop_urb(s_priv->instat_urb);
2716 stop_urb(s_priv->glocont_urb);
2717 stop_urb(s_priv->indat_urb);
2718 for (i = 0; i < serial->num_ports; ++i) {
2719 port = serial->port[i];
2720 p_priv = usb_get_serial_port_data(port);
2721 stop_urb(p_priv->inack_urb);
2722 stop_urb(p_priv->outcont_urb);
2723 for (j = 0; j < 2; j++) {
2724 stop_urb(p_priv->in_urbs[j]);
2725 stop_urb(p_priv->out_urbs[j]);
2726 }
2727 }
2728
2729 /* Now free them */
2730 usb_free_urb(s_priv->instat_urb);
2731 usb_free_urb(s_priv->indat_urb);
2732 usb_free_urb(s_priv->glocont_urb);
2733 for (i = 0; i < serial->num_ports; ++i) {
2734 port = serial->port[i];
2735 p_priv = usb_get_serial_port_data(port);
2736 usb_free_urb(p_priv->inack_urb);
2737 usb_free_urb(p_priv->outcont_urb);
2738 for (j = 0; j < 2; j++) {
2739 usb_free_urb(p_priv->in_urbs[j]);
2740 usb_free_urb(p_priv->out_urbs[j]);
2741 }
2742 }
2743
2744 /* dbg("Freeing serial->private."); */
2745 kfree(s_priv);
2746
2747 /* dbg("Freeing port->private."); */
2748 /* Now free per port private data */
2749 for (i = 0; i < serial->num_ports; i++) {
2750 port = serial->port[i];
2751 kfree(usb_get_serial_port_data(port));
2752 }
2753 }
2754
2755 MODULE_AUTHOR( DRIVER_AUTHOR );
2756 MODULE_DESCRIPTION( DRIVER_DESC );
2757 MODULE_LICENSE("GPL");
2758
2759 module_param(debug, bool, S_IRUGO | S_IWUSR);
2760 MODULE_PARM_DESC(debug, "Debug enabled or not");
2761
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