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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://blemings.org/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 <linux/firmware.h>
109#include <linux/ihex.h>
110#include <linux/uaccess.h>
111#include <linux/usb.h>
112#include <linux/usb/serial.h>
113#include "keyspan.h"
114
115static int debug;
116
117/*
118 * Version Information
119 */
120#define DRIVER_VERSION "v1.1.5"
121#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
122#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
123
124#define INSTAT_BUFLEN 32
125#define GLOCONT_BUFLEN 64
126#define INDAT49W_BUFLEN 512
127
128 /* Per device and per port private data */
129struct keyspan_serial_private {
130 const struct keyspan_device_details *device_details;
131
132 struct urb *instat_urb;
133 char instat_buf[INSTAT_BUFLEN];
134
135 /* added to support 49wg, where data from all 4 ports comes in
136 on 1 EP and high-speed supported */
137 struct urb *indat_urb;
138 char indat_buf[INDAT49W_BUFLEN];
139
140 /* XXX this one probably will need a lock */
141 struct urb *glocont_urb;
142 char glocont_buf[GLOCONT_BUFLEN];
143 char ctrl_buf[8]; /* for EP0 control message */
144};
145
146struct keyspan_port_private {
147 /* Keep track of which input & output endpoints to use */
148 int in_flip;
149 int out_flip;
150
151 /* Keep duplicate of device details in each port
152 structure as well - simplifies some of the
153 callback functions etc. */
154 const struct keyspan_device_details *device_details;
155
156 /* Input endpoints and buffer for this port */
157 struct urb *in_urbs[2];
158 char in_buffer[2][64];
159 /* Output endpoints and buffer for this port */
160 struct urb *out_urbs[2];
161 char out_buffer[2][64];
162
163 /* Input ack endpoint */
164 struct urb *inack_urb;
165 char inack_buffer[1];
166
167 /* Output control endpoint */
168 struct urb *outcont_urb;
169 char outcont_buffer[64];
170
171 /* Settings for the port */
172 int baud;
173 int old_baud;
174 unsigned int cflag;
175 unsigned int old_cflag;
176 enum {flow_none, flow_cts, flow_xon} flow_control;
177 int rts_state; /* Handshaking pins (outputs) */
178 int dtr_state;
179 int cts_state; /* Handshaking pins (inputs) */
180 int dsr_state;
181 int dcd_state;
182 int ri_state;
183 int break_on;
184
185 unsigned long tx_start_time[2];
186 int resend_cont; /* need to resend control packet */
187};
188
189/* Include Keyspan message headers. All current Keyspan Adapters
190 make use of one of five message formats which are referred
191 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and
192 within this driver. */
193#include "keyspan_usa26msg.h"
194#include "keyspan_usa28msg.h"
195#include "keyspan_usa49msg.h"
196#include "keyspan_usa90msg.h"
197#include "keyspan_usa67msg.h"
198
199
200/* Functions used by new usb-serial code. */
201static int __init keyspan_init(void)
202{
203 int retval;
204 retval = usb_serial_register(&keyspan_pre_device);
205 if (retval)
206 goto failed_pre_device_register;
207 retval = usb_serial_register(&keyspan_1port_device);
208 if (retval)
209 goto failed_1port_device_register;
210 retval = usb_serial_register(&keyspan_2port_device);
211 if (retval)
212 goto failed_2port_device_register;
213 retval = usb_serial_register(&keyspan_4port_device);
214 if (retval)
215 goto failed_4port_device_register;
216 retval = usb_register(&keyspan_driver);
217 if (retval)
218 goto failed_usb_register;
219
220 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
221 DRIVER_DESC "\n");
222
223 return 0;
224failed_usb_register:
225 usb_serial_deregister(&keyspan_4port_device);
226failed_4port_device_register:
227 usb_serial_deregister(&keyspan_2port_device);
228failed_2port_device_register:
229 usb_serial_deregister(&keyspan_1port_device);
230failed_1port_device_register:
231 usb_serial_deregister(&keyspan_pre_device);
232failed_pre_device_register:
233 return retval;
234}
235
236static void __exit keyspan_exit(void)
237{
238 usb_deregister(&keyspan_driver);
239 usb_serial_deregister(&keyspan_pre_device);
240 usb_serial_deregister(&keyspan_1port_device);
241 usb_serial_deregister(&keyspan_2port_device);
242 usb_serial_deregister(&keyspan_4port_device);
243}
244
245module_init(keyspan_init);
246module_exit(keyspan_exit);
247
248static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
249{
250 struct usb_serial_port *port = tty->driver_data;
251 struct keyspan_port_private *p_priv;
252
253 dbg("%s", __func__);
254
255 p_priv = usb_get_serial_port_data(port);
256
257 if (break_state == -1)
258 p_priv->break_on = 1;
259 else
260 p_priv->break_on = 0;
261
262 keyspan_send_setup(port, 0);
263}
264
265
266static void keyspan_set_termios(struct tty_struct *tty,
267 struct usb_serial_port *port, struct ktermios *old_termios)
268{
269 int baud_rate, device_port;
270 struct keyspan_port_private *p_priv;
271 const struct keyspan_device_details *d_details;
272 unsigned int cflag;
273
274 dbg("%s", __func__);
275
276 p_priv = usb_get_serial_port_data(port);
277 d_details = p_priv->device_details;
278 cflag = tty->termios->c_cflag;
279 device_port = port->number - port->serial->minor;
280
281 /* Baud rate calculation takes baud rate as an integer
282 so other rates can be generated if desired. */
283 baud_rate = tty_get_baud_rate(tty);
284 /* If no match or invalid, don't change */
285 if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
286 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
287 /* FIXME - more to do here to ensure rate changes cleanly */
288 /* FIXME - calcuate exact rate from divisor ? */
289 p_priv->baud = baud_rate;
290 } else
291 baud_rate = tty_termios_baud_rate(old_termios);
292
293 tty_encode_baud_rate(tty, baud_rate, baud_rate);
294 /* set CTS/RTS handshake etc. */
295 p_priv->cflag = cflag;
296 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
297
298 /* Mark/Space not supported */
299 tty->termios->c_cflag &= ~CMSPAR;
300
301 keyspan_send_setup(port, 0);
302}
303
304static int keyspan_tiocmget(struct tty_struct *tty)
305{
306 struct usb_serial_port *port = tty->driver_data;
307 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
308 unsigned int value;
309
310 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
311 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
312 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
313 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
314 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
315 ((p_priv->ri_state) ? TIOCM_RNG : 0);
316
317 return value;
318}
319
320static int keyspan_tiocmset(struct tty_struct *tty,
321 unsigned int set, unsigned int clear)
322{
323 struct usb_serial_port *port = tty->driver_data;
324 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
325
326 if (set & TIOCM_RTS)
327 p_priv->rts_state = 1;
328 if (set & TIOCM_DTR)
329 p_priv->dtr_state = 1;
330 if (clear & TIOCM_RTS)
331 p_priv->rts_state = 0;
332 if (clear & TIOCM_DTR)
333 p_priv->dtr_state = 0;
334 keyspan_send_setup(port, 0);
335 return 0;
336}
337
338/* Write function is similar for the four protocols used
339 with only a minor change for usa90 (usa19hs) required */
340static int keyspan_write(struct tty_struct *tty,
341 struct usb_serial_port *port, const unsigned char *buf, int count)
342{
343 struct keyspan_port_private *p_priv;
344 const struct keyspan_device_details *d_details;
345 int flip;
346 int left, todo;
347 struct urb *this_urb;
348 int err, maxDataLen, dataOffset;
349
350 p_priv = usb_get_serial_port_data(port);
351 d_details = p_priv->device_details;
352
353 if (d_details->msg_format == msg_usa90) {
354 maxDataLen = 64;
355 dataOffset = 0;
356 } else {
357 maxDataLen = 63;
358 dataOffset = 1;
359 }
360
361 dbg("%s - for port %d (%d chars), flip=%d",
362 __func__, port->number, count, p_priv->out_flip);
363
364 for (left = count; left > 0; left -= todo) {
365 todo = left;
366 if (todo > maxDataLen)
367 todo = maxDataLen;
368
369 flip = p_priv->out_flip;
370
371 /* Check we have a valid urb/endpoint before we use it... */
372 this_urb = p_priv->out_urbs[flip];
373 if (this_urb == NULL) {
374 /* no bulk out, so return 0 bytes written */
375 dbg("%s - no output urb :(", __func__);
376 return count;
377 }
378
379 dbg("%s - endpoint %d flip %d",
380 __func__, usb_pipeendpoint(this_urb->pipe), flip);
381
382 if (this_urb->status == -EINPROGRESS) {
383 if (time_before(jiffies,
384 p_priv->tx_start_time[flip] + 10 * HZ))
385 break;
386 usb_unlink_urb(this_urb);
387 break;
388 }
389
390 /* First byte in buffer is "last flag" (except for usa19hx)
391 - unused so for now so set to zero */
392 ((char *)this_urb->transfer_buffer)[0] = 0;
393
394 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
395 buf += todo;
396
397 /* send the data out the bulk port */
398 this_urb->transfer_buffer_length = todo + dataOffset;
399
400 this_urb->dev = port->serial->dev;
401 err = usb_submit_urb(this_urb, GFP_ATOMIC);
402 if (err != 0)
403 dbg("usb_submit_urb(write bulk) failed (%d)", err);
404 p_priv->tx_start_time[flip] = jiffies;
405
406 /* Flip for next time if usa26 or usa28 interface
407 (not used on usa49) */
408 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
409 }
410
411 return count - left;
412}
413
414static void usa26_indat_callback(struct urb *urb)
415{
416 int i, err;
417 int endpoint;
418 struct usb_serial_port *port;
419 struct tty_struct *tty;
420 unsigned char *data = urb->transfer_buffer;
421 int status = urb->status;
422
423 dbg("%s", __func__);
424
425 endpoint = usb_pipeendpoint(urb->pipe);
426
427 if (status) {
428 dbg("%s - nonzero status: %x on endpoint %d.",
429 __func__, status, endpoint);
430 return;
431 }
432
433 port = urb->context;
434 tty = tty_port_tty_get(&port->port);
435 if (tty && urb->actual_length) {
436 /* 0x80 bit is error flag */
437 if ((data[0] & 0x80) == 0) {
438 /* no errors on individual bytes, only
439 possible overrun err */
440 if (data[0] & RXERROR_OVERRUN)
441 err = TTY_OVERRUN;
442 else
443 err = 0;
444 for (i = 1; i < urb->actual_length ; ++i)
445 tty_insert_flip_char(tty, data[i], err);
446 } else {
447 /* some bytes had errors, every byte has status */
448 dbg("%s - RX error!!!!", __func__);
449 for (i = 0; i + 1 < urb->actual_length; i += 2) {
450 int stat = data[i], flag = 0;
451 if (stat & RXERROR_OVERRUN)
452 flag |= TTY_OVERRUN;
453 if (stat & RXERROR_FRAMING)
454 flag |= TTY_FRAME;
455 if (stat & RXERROR_PARITY)
456 flag |= TTY_PARITY;
457 /* XXX should handle break (0x10) */
458 tty_insert_flip_char(tty, data[i+1], flag);
459 }
460 }
461 tty_flip_buffer_push(tty);
462 }
463 tty_kref_put(tty);
464
465 /* Resubmit urb so we continue receiving */
466 urb->dev = port->serial->dev;
467 err = usb_submit_urb(urb, GFP_ATOMIC);
468 if (err != 0)
469 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
470}
471
472/* Outdat handling is common for all devices */
473static void usa2x_outdat_callback(struct urb *urb)
474{
475 struct usb_serial_port *port;
476 struct keyspan_port_private *p_priv;
477
478 port = urb->context;
479 p_priv = usb_get_serial_port_data(port);
480 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
481
482 usb_serial_port_softint(port);
483}
484
485static void usa26_inack_callback(struct urb *urb)
486{
487 dbg("%s", __func__);
488
489}
490
491static void usa26_outcont_callback(struct urb *urb)
492{
493 struct usb_serial_port *port;
494 struct keyspan_port_private *p_priv;
495
496 port = urb->context;
497 p_priv = usb_get_serial_port_data(port);
498
499 if (p_priv->resend_cont) {
500 dbg("%s - sending setup", __func__);
501 keyspan_usa26_send_setup(port->serial, port,
502 p_priv->resend_cont - 1);
503 }
504}
505
506static void usa26_instat_callback(struct urb *urb)
507{
508 unsigned char *data = urb->transfer_buffer;
509 struct keyspan_usa26_portStatusMessage *msg;
510 struct usb_serial *serial;
511 struct usb_serial_port *port;
512 struct keyspan_port_private *p_priv;
513 struct tty_struct *tty;
514 int old_dcd_state, err;
515 int status = urb->status;
516
517 serial = urb->context;
518
519 if (status) {
520 dbg("%s - nonzero status: %x", __func__, status);
521 return;
522 }
523 if (urb->actual_length != 9) {
524 dbg("%s - %d byte report??", __func__, urb->actual_length);
525 goto exit;
526 }
527
528 msg = (struct keyspan_usa26_portStatusMessage *)data;
529
530#if 0
531 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
532 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
533 msg->_txXoff, msg->rxEnabled, msg->controlResponse);
534#endif
535
536 /* Now do something useful with the data */
537
538
539 /* Check port number from message and retrieve private data */
540 if (msg->port >= serial->num_ports) {
541 dbg("%s - Unexpected port number %d", __func__, msg->port);
542 goto exit;
543 }
544 port = serial->port[msg->port];
545 p_priv = usb_get_serial_port_data(port);
546
547 /* Update handshaking pin state information */
548 old_dcd_state = p_priv->dcd_state;
549 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
550 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
551 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
552 p_priv->ri_state = ((msg->ri) ? 1 : 0);
553
554 if (old_dcd_state != p_priv->dcd_state) {
555 tty = tty_port_tty_get(&port->port);
556 if (tty && !C_CLOCAL(tty))
557 tty_hangup(tty);
558 tty_kref_put(tty);
559 }
560
561 /* Resubmit urb so we continue receiving */
562 urb->dev = serial->dev;
563 err = usb_submit_urb(urb, GFP_ATOMIC);
564 if (err != 0)
565 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
566exit: ;
567}
568
569static void usa26_glocont_callback(struct urb *urb)
570{
571 dbg("%s", __func__);
572}
573
574
575static void usa28_indat_callback(struct urb *urb)
576{
577 int err;
578 struct usb_serial_port *port;
579 struct tty_struct *tty;
580 unsigned char *data;
581 struct keyspan_port_private *p_priv;
582 int status = urb->status;
583
584 dbg("%s", __func__);
585
586 port = urb->context;
587 p_priv = usb_get_serial_port_data(port);
588 data = urb->transfer_buffer;
589
590 if (urb != p_priv->in_urbs[p_priv->in_flip])
591 return;
592
593 do {
594 if (status) {
595 dbg("%s - nonzero status: %x on endpoint %d.",
596 __func__, status, usb_pipeendpoint(urb->pipe));
597 return;
598 }
599
600 port = urb->context;
601 p_priv = usb_get_serial_port_data(port);
602 data = urb->transfer_buffer;
603
604 tty =tty_port_tty_get(&port->port);
605 if (tty && urb->actual_length) {
606 tty_insert_flip_string(tty, data, urb->actual_length);
607 tty_flip_buffer_push(tty);
608 }
609 tty_kref_put(tty);
610
611 /* Resubmit urb so we continue receiving */
612 urb->dev = port->serial->dev;
613 err = usb_submit_urb(urb, GFP_ATOMIC);
614 if (err != 0)
615 dbg("%s - resubmit read urb failed. (%d)",
616 __func__, err);
617 p_priv->in_flip ^= 1;
618
619 urb = p_priv->in_urbs[p_priv->in_flip];
620 } while (urb->status != -EINPROGRESS);
621}
622
623static void usa28_inack_callback(struct urb *urb)
624{
625 dbg("%s", __func__);
626}
627
628static void usa28_outcont_callback(struct urb *urb)
629{
630 struct usb_serial_port *port;
631 struct keyspan_port_private *p_priv;
632
633 port = urb->context;
634 p_priv = usb_get_serial_port_data(port);
635
636 if (p_priv->resend_cont) {
637 dbg("%s - sending setup", __func__);
638 keyspan_usa28_send_setup(port->serial, port,
639 p_priv->resend_cont - 1);
640 }
641}
642
643static void usa28_instat_callback(struct urb *urb)
644{
645 int err;
646 unsigned char *data = urb->transfer_buffer;
647 struct keyspan_usa28_portStatusMessage *msg;
648 struct usb_serial *serial;
649 struct usb_serial_port *port;
650 struct keyspan_port_private *p_priv;
651 struct tty_struct *tty;
652 int old_dcd_state;
653 int status = urb->status;
654
655 serial = urb->context;
656
657 if (status) {
658 dbg("%s - nonzero status: %x", __func__, status);
659 return;
660 }
661
662 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
663 dbg("%s - bad length %d", __func__, urb->actual_length);
664 goto exit;
665 }
666
667 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
668 data[0], data[1], data[2], data[3], data[4], data[5],
669 data[6], data[7], data[8], data[9], data[10], data[11]);*/
670
671 /* Now do something useful with the data */
672 msg = (struct keyspan_usa28_portStatusMessage *)data;
673
674 /* Check port number from message and retrieve private data */
675 if (msg->port >= serial->num_ports) {
676 dbg("%s - Unexpected port number %d", __func__, msg->port);
677 goto exit;
678 }
679 port = serial->port[msg->port];
680 p_priv = usb_get_serial_port_data(port);
681
682 /* Update handshaking pin state information */
683 old_dcd_state = p_priv->dcd_state;
684 p_priv->cts_state = ((msg->cts) ? 1 : 0);
685 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
686 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
687 p_priv->ri_state = ((msg->ri) ? 1 : 0);
688
689 if( old_dcd_state != p_priv->dcd_state && old_dcd_state) {
690 tty = tty_port_tty_get(&port->port);
691 if (tty && !C_CLOCAL(tty))
692 tty_hangup(tty);
693 tty_kref_put(tty);
694 }
695
696 /* Resubmit urb so we continue receiving */
697 urb->dev = serial->dev;
698 err = usb_submit_urb(urb, GFP_ATOMIC);
699 if (err != 0)
700 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
701exit: ;
702}
703
704static void usa28_glocont_callback(struct urb *urb)
705{
706 dbg("%s", __func__);
707}
708
709
710static void usa49_glocont_callback(struct urb *urb)
711{
712 struct usb_serial *serial;
713 struct usb_serial_port *port;
714 struct keyspan_port_private *p_priv;
715 int i;
716
717 dbg("%s", __func__);
718
719 serial = urb->context;
720 for (i = 0; i < serial->num_ports; ++i) {
721 port = serial->port[i];
722 p_priv = usb_get_serial_port_data(port);
723
724 if (p_priv->resend_cont) {
725 dbg("%s - sending setup", __func__);
726 keyspan_usa49_send_setup(serial, port,
727 p_priv->resend_cont - 1);
728 break;
729 }
730 }
731}
732
733 /* This is actually called glostat in the Keyspan
734 doco */
735static void usa49_instat_callback(struct urb *urb)
736{
737 int err;
738 unsigned char *data = urb->transfer_buffer;
739 struct keyspan_usa49_portStatusMessage *msg;
740 struct usb_serial *serial;
741 struct usb_serial_port *port;
742 struct keyspan_port_private *p_priv;
743 int old_dcd_state;
744 int status = urb->status;
745
746 dbg("%s", __func__);
747
748 serial = urb->context;
749
750 if (status) {
751 dbg("%s - nonzero status: %x", __func__, status);
752 return;
753 }
754
755 if (urb->actual_length !=
756 sizeof(struct keyspan_usa49_portStatusMessage)) {
757 dbg("%s - bad length %d", __func__, urb->actual_length);
758 goto exit;
759 }
760
761 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
762 data[0], data[1], data[2], data[3], data[4], data[5],
763 data[6], data[7], data[8], data[9], data[10]);*/
764
765 /* Now do something useful with the data */
766 msg = (struct keyspan_usa49_portStatusMessage *)data;
767
768 /* Check port number from message and retrieve private data */
769 if (msg->portNumber >= serial->num_ports) {
770 dbg("%s - Unexpected port number %d",
771 __func__, msg->portNumber);
772 goto exit;
773 }
774 port = serial->port[msg->portNumber];
775 p_priv = usb_get_serial_port_data(port);
776
777 /* Update handshaking pin state information */
778 old_dcd_state = p_priv->dcd_state;
779 p_priv->cts_state = ((msg->cts) ? 1 : 0);
780 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
781 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
782 p_priv->ri_state = ((msg->ri) ? 1 : 0);
783
784 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
785 struct tty_struct *tty = tty_port_tty_get(&port->port);
786 if (tty && !C_CLOCAL(tty))
787 tty_hangup(tty);
788 tty_kref_put(tty);
789 }
790
791 /* Resubmit urb so we continue receiving */
792 urb->dev = serial->dev;
793
794 err = usb_submit_urb(urb, GFP_ATOMIC);
795 if (err != 0)
796 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
797exit: ;
798}
799
800static void usa49_inack_callback(struct urb *urb)
801{
802 dbg("%s", __func__);
803}
804
805static void usa49_indat_callback(struct urb *urb)
806{
807 int i, err;
808 int endpoint;
809 struct usb_serial_port *port;
810 struct tty_struct *tty;
811 unsigned char *data = urb->transfer_buffer;
812 int status = urb->status;
813
814 dbg("%s", __func__);
815
816 endpoint = usb_pipeendpoint(urb->pipe);
817
818 if (status) {
819 dbg("%s - nonzero status: %x on endpoint %d.", __func__,
820 status, endpoint);
821 return;
822 }
823
824 port = urb->context;
825 tty = tty_port_tty_get(&port->port);
826 if (tty && urb->actual_length) {
827 /* 0x80 bit is error flag */
828 if ((data[0] & 0x80) == 0) {
829 /* no error on any byte */
830 tty_insert_flip_string(tty, data + 1,
831 urb->actual_length - 1);
832 } else {
833 /* some bytes had errors, every byte has status */
834 for (i = 0; i + 1 < urb->actual_length; i += 2) {
835 int stat = data[i], flag = 0;
836 if (stat & RXERROR_OVERRUN)
837 flag |= TTY_OVERRUN;
838 if (stat & RXERROR_FRAMING)
839 flag |= TTY_FRAME;
840 if (stat & RXERROR_PARITY)
841 flag |= TTY_PARITY;
842 /* XXX should handle break (0x10) */
843 tty_insert_flip_char(tty, data[i+1], flag);
844 }
845 }
846 tty_flip_buffer_push(tty);
847 }
848 tty_kref_put(tty);
849
850 /* Resubmit urb so we continue receiving */
851 urb->dev = port->serial->dev;
852 err = usb_submit_urb(urb, GFP_ATOMIC);
853 if (err != 0)
854 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
855}
856
857static void usa49wg_indat_callback(struct urb *urb)
858{
859 int i, len, x, err;
860 struct usb_serial *serial;
861 struct usb_serial_port *port;
862 struct tty_struct *tty;
863 unsigned char *data = urb->transfer_buffer;
864 int status = urb->status;
865
866 dbg("%s", __func__);
867
868 serial = urb->context;
869
870 if (status) {
871 dbg("%s - nonzero status: %x", __func__, status);
872 return;
873 }
874
875 /* inbound data is in the form P#, len, status, data */
876 i = 0;
877 len = 0;
878
879 if (urb->actual_length) {
880 while (i < urb->actual_length) {
881
882 /* Check port number from message*/
883 if (data[i] >= serial->num_ports) {
884 dbg("%s - Unexpected port number %d",
885 __func__, data[i]);
886 return;
887 }
888 port = serial->port[data[i++]];
889 tty = tty_port_tty_get(&port->port);
890 len = data[i++];
891
892 /* 0x80 bit is error flag */
893 if ((data[i] & 0x80) == 0) {
894 /* no error on any byte */
895 i++;
896 for (x = 1; x < len ; ++x)
897 tty_insert_flip_char(tty, data[i++], 0);
898 } else {
899 /*
900 * some bytes had errors, every byte has status
901 */
902 for (x = 0; x + 1 < len; x += 2) {
903 int stat = data[i], flag = 0;
904 if (stat & RXERROR_OVERRUN)
905 flag |= TTY_OVERRUN;
906 if (stat & RXERROR_FRAMING)
907 flag |= TTY_FRAME;
908 if (stat & RXERROR_PARITY)
909 flag |= TTY_PARITY;
910 /* XXX should handle break (0x10) */
911 tty_insert_flip_char(tty,
912 data[i+1], flag);
913 i += 2;
914 }
915 }
916 tty_flip_buffer_push(tty);
917 tty_kref_put(tty);
918 }
919 }
920
921 /* Resubmit urb so we continue receiving */
922 urb->dev = serial->dev;
923
924 err = usb_submit_urb(urb, GFP_ATOMIC);
925 if (err != 0)
926 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
927}
928
929/* not used, usa-49 doesn't have per-port control endpoints */
930static void usa49_outcont_callback(struct urb *urb)
931{
932 dbg("%s", __func__);
933}
934
935static void usa90_indat_callback(struct urb *urb)
936{
937 int i, err;
938 int endpoint;
939 struct usb_serial_port *port;
940 struct keyspan_port_private *p_priv;
941 struct tty_struct *tty;
942 unsigned char *data = urb->transfer_buffer;
943 int status = urb->status;
944
945 dbg("%s", __func__);
946
947 endpoint = usb_pipeendpoint(urb->pipe);
948
949 if (status) {
950 dbg("%s - nonzero status: %x on endpoint %d.",
951 __func__, status, endpoint);
952 return;
953 }
954
955 port = urb->context;
956 p_priv = usb_get_serial_port_data(port);
957
958 if (urb->actual_length) {
959 tty = tty_port_tty_get(&port->port);
960 /* if current mode is DMA, looks like usa28 format
961 otherwise looks like usa26 data format */
962
963 if (p_priv->baud > 57600)
964 tty_insert_flip_string(tty, data, urb->actual_length);
965 else {
966 /* 0x80 bit is error flag */
967 if ((data[0] & 0x80) == 0) {
968 /* no errors on individual bytes, only
969 possible overrun err*/
970 if (data[0] & RXERROR_OVERRUN)
971 err = TTY_OVERRUN;
972 else
973 err = 0;
974 for (i = 1; i < urb->actual_length ; ++i)
975 tty_insert_flip_char(tty, data[i],
976 err);
977 } else {
978 /* some bytes had errors, every byte has status */
979 dbg("%s - RX error!!!!", __func__);
980 for (i = 0; i + 1 < urb->actual_length; i += 2) {
981 int stat = data[i], flag = 0;
982 if (stat & RXERROR_OVERRUN)
983 flag |= TTY_OVERRUN;
984 if (stat & RXERROR_FRAMING)
985 flag |= TTY_FRAME;
986 if (stat & RXERROR_PARITY)
987 flag |= TTY_PARITY;
988 /* XXX should handle break (0x10) */
989 tty_insert_flip_char(tty, data[i+1],
990 flag);
991 }
992 }
993 }
994 tty_flip_buffer_push(tty);
995 tty_kref_put(tty);
996 }
997
998 /* Resubmit urb so we continue receiving */
999 urb->dev = port->serial->dev;
1000 err = usb_submit_urb(urb, GFP_ATOMIC);
1001 if (err != 0)
1002 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1003}
1004
1005
1006static void usa90_instat_callback(struct urb *urb)
1007{
1008 unsigned char *data = urb->transfer_buffer;
1009 struct keyspan_usa90_portStatusMessage *msg;
1010 struct usb_serial *serial;
1011 struct usb_serial_port *port;
1012 struct keyspan_port_private *p_priv;
1013 struct tty_struct *tty;
1014 int old_dcd_state, err;
1015 int status = urb->status;
1016
1017 serial = urb->context;
1018
1019 if (status) {
1020 dbg("%s - nonzero status: %x", __func__, status);
1021 return;
1022 }
1023 if (urb->actual_length < 14) {
1024 dbg("%s - %d byte report??", __func__, urb->actual_length);
1025 goto exit;
1026 }
1027
1028 msg = (struct keyspan_usa90_portStatusMessage *)data;
1029
1030 /* Now do something useful with the data */
1031
1032 port = serial->port[0];
1033 p_priv = usb_get_serial_port_data(port);
1034
1035 /* Update handshaking pin state information */
1036 old_dcd_state = p_priv->dcd_state;
1037 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1038 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1039 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1040 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1041
1042 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1043 tty = tty_port_tty_get(&port->port);
1044 if (tty && !C_CLOCAL(tty))
1045 tty_hangup(tty);
1046 tty_kref_put(tty);
1047 }
1048
1049 /* Resubmit urb so we continue receiving */
1050 urb->dev = serial->dev;
1051 err = usb_submit_urb(urb, GFP_ATOMIC);
1052 if (err != 0)
1053 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1054exit:
1055 ;
1056}
1057
1058static void usa90_outcont_callback(struct urb *urb)
1059{
1060 struct usb_serial_port *port;
1061 struct keyspan_port_private *p_priv;
1062
1063 port = urb->context;
1064 p_priv = usb_get_serial_port_data(port);
1065
1066 if (p_priv->resend_cont) {
1067 dbg("%s - sending setup", __func__);
1068 keyspan_usa90_send_setup(port->serial, port,
1069 p_priv->resend_cont - 1);
1070 }
1071}
1072
1073/* Status messages from the 28xg */
1074static void usa67_instat_callback(struct urb *urb)
1075{
1076 int err;
1077 unsigned char *data = urb->transfer_buffer;
1078 struct keyspan_usa67_portStatusMessage *msg;
1079 struct usb_serial *serial;
1080 struct usb_serial_port *port;
1081 struct keyspan_port_private *p_priv;
1082 int old_dcd_state;
1083 int status = urb->status;
1084
1085 dbg("%s", __func__);
1086
1087 serial = urb->context;
1088
1089 if (status) {
1090 dbg("%s - nonzero status: %x", __func__, status);
1091 return;
1092 }
1093
1094 if (urb->actual_length !=
1095 sizeof(struct keyspan_usa67_portStatusMessage)) {
1096 dbg("%s - bad length %d", __func__, urb->actual_length);
1097 return;
1098 }
1099
1100
1101 /* Now do something useful with the data */
1102 msg = (struct keyspan_usa67_portStatusMessage *)data;
1103
1104 /* Check port number from message and retrieve private data */
1105 if (msg->port >= serial->num_ports) {
1106 dbg("%s - Unexpected port number %d", __func__, msg->port);
1107 return;
1108 }
1109
1110 port = serial->port[msg->port];
1111 p_priv = usb_get_serial_port_data(port);
1112
1113 /* Update handshaking pin state information */
1114 old_dcd_state = p_priv->dcd_state;
1115 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1116 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1117
1118 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1119 struct tty_struct *tty = tty_port_tty_get(&port->port);
1120 if (tty && !C_CLOCAL(tty))
1121 tty_hangup(tty);
1122 tty_kref_put(tty);
1123 }
1124
1125 /* Resubmit urb so we continue receiving */
1126 urb->dev = serial->dev;
1127 err = usb_submit_urb(urb, GFP_ATOMIC);
1128 if (err != 0)
1129 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1130}
1131
1132static void usa67_glocont_callback(struct urb *urb)
1133{
1134 struct usb_serial *serial;
1135 struct usb_serial_port *port;
1136 struct keyspan_port_private *p_priv;
1137 int i;
1138
1139 dbg("%s", __func__);
1140
1141 serial = urb->context;
1142 for (i = 0; i < serial->num_ports; ++i) {
1143 port = serial->port[i];
1144 p_priv = usb_get_serial_port_data(port);
1145
1146 if (p_priv->resend_cont) {
1147 dbg("%s - sending setup", __func__);
1148 keyspan_usa67_send_setup(serial, port,
1149 p_priv->resend_cont - 1);
1150 break;
1151 }
1152 }
1153}
1154
1155static int keyspan_write_room(struct tty_struct *tty)
1156{
1157 struct usb_serial_port *port = tty->driver_data;
1158 struct keyspan_port_private *p_priv;
1159 const struct keyspan_device_details *d_details;
1160 int flip;
1161 int data_len;
1162 struct urb *this_urb;
1163
1164 dbg("%s", __func__);
1165 p_priv = usb_get_serial_port_data(port);
1166 d_details = p_priv->device_details;
1167
1168 /* FIXME: locking */
1169 if (d_details->msg_format == msg_usa90)
1170 data_len = 64;
1171 else
1172 data_len = 63;
1173
1174 flip = p_priv->out_flip;
1175
1176 /* Check both endpoints to see if any are available. */
1177 this_urb = p_priv->out_urbs[flip];
1178 if (this_urb != NULL) {
1179 if (this_urb->status != -EINPROGRESS)
1180 return data_len;
1181 flip = (flip + 1) & d_details->outdat_endp_flip;
1182 this_urb = p_priv->out_urbs[flip];
1183 if (this_urb != NULL) {
1184 if (this_urb->status != -EINPROGRESS)
1185 return data_len;
1186 }
1187 }
1188 return 0;
1189}
1190
1191
1192static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1193{
1194 struct keyspan_port_private *p_priv;
1195 struct keyspan_serial_private *s_priv;
1196 struct usb_serial *serial = port->serial;
1197 const struct keyspan_device_details *d_details;
1198 int i, err;
1199 int baud_rate, device_port;
1200 struct urb *urb;
1201 unsigned int cflag = 0;
1202
1203 s_priv = usb_get_serial_data(serial);
1204 p_priv = usb_get_serial_port_data(port);
1205 d_details = p_priv->device_details;
1206
1207 dbg("%s - port%d.", __func__, port->number);
1208
1209 /* Set some sane defaults */
1210 p_priv->rts_state = 1;
1211 p_priv->dtr_state = 1;
1212 p_priv->baud = 9600;
1213
1214 /* force baud and lcr to be set on open */
1215 p_priv->old_baud = 0;
1216 p_priv->old_cflag = 0;
1217
1218 p_priv->out_flip = 0;
1219 p_priv->in_flip = 0;
1220
1221 /* Reset low level data toggle and start reading from endpoints */
1222 for (i = 0; i < 2; i++) {
1223 urb = p_priv->in_urbs[i];
1224 if (urb == NULL)
1225 continue;
1226 urb->dev = serial->dev;
1227
1228 /* make sure endpoint data toggle is synchronized
1229 with the device */
1230 usb_clear_halt(urb->dev, urb->pipe);
1231 err = usb_submit_urb(urb, GFP_KERNEL);
1232 if (err != 0)
1233 dbg("%s - submit urb %d failed (%d)",
1234 __func__, i, err);
1235 }
1236
1237 /* Reset low level data toggle on out endpoints */
1238 for (i = 0; i < 2; i++) {
1239 urb = p_priv->out_urbs[i];
1240 if (urb == NULL)
1241 continue;
1242 urb->dev = serial->dev;
1243 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1244 usb_pipeout(urb->pipe), 0); */
1245 }
1246
1247 /* get the terminal config for the setup message now so we don't
1248 * need to send 2 of them */
1249
1250 device_port = port->number - port->serial->minor;
1251 if (tty) {
1252 cflag = tty->termios->c_cflag;
1253 /* Baud rate calculation takes baud rate as an integer
1254 so other rates can be generated if desired. */
1255 baud_rate = tty_get_baud_rate(tty);
1256 /* If no match or invalid, leave as default */
1257 if (baud_rate >= 0
1258 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
1259 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1260 p_priv->baud = baud_rate;
1261 }
1262 }
1263 /* set CTS/RTS handshake etc. */
1264 p_priv->cflag = cflag;
1265 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1266
1267 keyspan_send_setup(port, 1);
1268 /* mdelay(100); */
1269 /* keyspan_set_termios(port, NULL); */
1270
1271 return 0;
1272}
1273
1274static inline void stop_urb(struct urb *urb)
1275{
1276 if (urb && urb->status == -EINPROGRESS)
1277 usb_kill_urb(urb);
1278}
1279
1280static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1281{
1282 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1283
1284 p_priv->rts_state = on;
1285 p_priv->dtr_state = on;
1286 keyspan_send_setup(port, 0);
1287}
1288
1289static void keyspan_close(struct usb_serial_port *port)
1290{
1291 int i;
1292 struct usb_serial *serial = port->serial;
1293 struct keyspan_serial_private *s_priv;
1294 struct keyspan_port_private *p_priv;
1295
1296 dbg("%s", __func__);
1297 s_priv = usb_get_serial_data(serial);
1298 p_priv = usb_get_serial_port_data(port);
1299
1300 p_priv->rts_state = 0;
1301 p_priv->dtr_state = 0;
1302
1303 if (serial->dev) {
1304 keyspan_send_setup(port, 2);
1305 /* pilot-xfer seems to work best with this delay */
1306 mdelay(100);
1307 /* keyspan_set_termios(port, NULL); */
1308 }
1309
1310 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
1311 dbg("%s - urb in progress", __func__);
1312 }*/
1313
1314 p_priv->out_flip = 0;
1315 p_priv->in_flip = 0;
1316
1317 if (serial->dev) {
1318 /* Stop reading/writing urbs */
1319 stop_urb(p_priv->inack_urb);
1320 /* stop_urb(p_priv->outcont_urb); */
1321 for (i = 0; i < 2; i++) {
1322 stop_urb(p_priv->in_urbs[i]);
1323 stop_urb(p_priv->out_urbs[i]);
1324 }
1325 }
1326}
1327
1328/* download the firmware to a pre-renumeration device */
1329static int keyspan_fake_startup(struct usb_serial *serial)
1330{
1331 int response;
1332 const struct ihex_binrec *record;
1333 char *fw_name;
1334 const struct firmware *fw;
1335
1336 dbg("Keyspan startup version %04x product %04x",
1337 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1338 le16_to_cpu(serial->dev->descriptor.idProduct));
1339
1340 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1341 != 0x8000) {
1342 dbg("Firmware already loaded. Quitting.");
1343 return 1;
1344 }
1345
1346 /* Select firmware image on the basis of idProduct */
1347 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1348 case keyspan_usa28_pre_product_id:
1349 fw_name = "keyspan/usa28.fw";
1350 break;
1351
1352 case keyspan_usa28x_pre_product_id:
1353 fw_name = "keyspan/usa28x.fw";
1354 break;
1355
1356 case keyspan_usa28xa_pre_product_id:
1357 fw_name = "keyspan/usa28xa.fw";
1358 break;
1359
1360 case keyspan_usa28xb_pre_product_id:
1361 fw_name = "keyspan/usa28xb.fw";
1362 break;
1363
1364 case keyspan_usa19_pre_product_id:
1365 fw_name = "keyspan/usa19.fw";
1366 break;
1367
1368 case keyspan_usa19qi_pre_product_id:
1369 fw_name = "keyspan/usa19qi.fw";
1370 break;
1371
1372 case keyspan_mpr_pre_product_id:
1373 fw_name = "keyspan/mpr.fw";
1374 break;
1375
1376 case keyspan_usa19qw_pre_product_id:
1377 fw_name = "keyspan/usa19qw.fw";
1378 break;
1379
1380 case keyspan_usa18x_pre_product_id:
1381 fw_name = "keyspan/usa18x.fw";
1382 break;
1383
1384 case keyspan_usa19w_pre_product_id:
1385 fw_name = "keyspan/usa19w.fw";
1386 break;
1387
1388 case keyspan_usa49w_pre_product_id:
1389 fw_name = "keyspan/usa49w.fw";
1390 break;
1391
1392 case keyspan_usa49wlc_pre_product_id:
1393 fw_name = "keyspan/usa49wlc.fw";
1394 break;
1395
1396 default:
1397 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1398 le16_to_cpu(serial->dev->descriptor.idProduct));
1399 return 1;
1400 }
1401
1402 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
1403 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1404 return(1);
1405 }
1406
1407 dbg("Uploading Keyspan %s firmware.", fw_name);
1408
1409 /* download the firmware image */
1410 response = ezusb_set_reset(serial, 1);
1411
1412 record = (const struct ihex_binrec *)fw->data;
1413
1414 while (record) {
1415 response = ezusb_writememory(serial, be32_to_cpu(record->addr),
1416 (unsigned char *)record->data,
1417 be16_to_cpu(record->len), 0xa0);
1418 if (response < 0) {
1419 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
1420 response, be32_to_cpu(record->addr),
1421 record->data, be16_to_cpu(record->len));
1422 break;
1423 }
1424 record = ihex_next_binrec(record);
1425 }
1426 release_firmware(fw);
1427 /* bring device out of reset. Renumeration will occur in a
1428 moment and the new device will bind to the real driver */
1429 response = ezusb_set_reset(serial, 0);
1430
1431 /* we don't want this device to have a driver assigned to it. */
1432 return 1;
1433}
1434
1435/* Helper functions used by keyspan_setup_urbs */
1436static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1437 int endpoint)
1438{
1439 struct usb_host_interface *iface_desc;
1440 struct usb_endpoint_descriptor *ep;
1441 int i;
1442
1443 iface_desc = serial->interface->cur_altsetting;
1444 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1445 ep = &iface_desc->endpoint[i].desc;
1446 if (ep->bEndpointAddress == endpoint)
1447 return ep;
1448 }
1449 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1450 "endpoint %x\n", endpoint);
1451 return NULL;
1452}
1453
1454static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1455 int dir, void *ctx, char *buf, int len,
1456 void (*callback)(struct urb *))
1457{
1458 struct urb *urb;
1459 struct usb_endpoint_descriptor const *ep_desc;
1460 char const *ep_type_name;
1461
1462 if (endpoint == -1)
1463 return NULL; /* endpoint not needed */
1464
1465 dbg("%s - alloc for endpoint %d.", __func__, endpoint);
1466 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1467 if (urb == NULL) {
1468 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
1469 return NULL;
1470 }
1471
1472 if (endpoint == 0) {
1473 /* control EP filled in when used */
1474 return urb;
1475 }
1476
1477 ep_desc = find_ep(serial, endpoint);
1478 if (!ep_desc) {
1479 /* leak the urb, something's wrong and the callers don't care */
1480 return urb;
1481 }
1482 if (usb_endpoint_xfer_int(ep_desc)) {
1483 ep_type_name = "INT";
1484 usb_fill_int_urb(urb, serial->dev,
1485 usb_sndintpipe(serial->dev, endpoint) | dir,
1486 buf, len, callback, ctx,
1487 ep_desc->bInterval);
1488 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1489 ep_type_name = "BULK";
1490 usb_fill_bulk_urb(urb, serial->dev,
1491 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1492 buf, len, callback, ctx);
1493 } else {
1494 dev_warn(&serial->interface->dev,
1495 "unsupported endpoint type %x\n",
1496 usb_endpoint_type(ep_desc));
1497 usb_free_urb(urb);
1498 return NULL;
1499 }
1500
1501 dbg("%s - using urb %p for %s endpoint %x",
1502 __func__, urb, ep_type_name, endpoint);
1503 return urb;
1504}
1505
1506static struct callbacks {
1507 void (*instat_callback)(struct urb *);
1508 void (*glocont_callback)(struct urb *);
1509 void (*indat_callback)(struct urb *);
1510 void (*outdat_callback)(struct urb *);
1511 void (*inack_callback)(struct urb *);
1512 void (*outcont_callback)(struct urb *);
1513} keyspan_callbacks[] = {
1514 {
1515 /* msg_usa26 callbacks */
1516 .instat_callback = usa26_instat_callback,
1517 .glocont_callback = usa26_glocont_callback,
1518 .indat_callback = usa26_indat_callback,
1519 .outdat_callback = usa2x_outdat_callback,
1520 .inack_callback = usa26_inack_callback,
1521 .outcont_callback = usa26_outcont_callback,
1522 }, {
1523 /* msg_usa28 callbacks */
1524 .instat_callback = usa28_instat_callback,
1525 .glocont_callback = usa28_glocont_callback,
1526 .indat_callback = usa28_indat_callback,
1527 .outdat_callback = usa2x_outdat_callback,
1528 .inack_callback = usa28_inack_callback,
1529 .outcont_callback = usa28_outcont_callback,
1530 }, {
1531 /* msg_usa49 callbacks */
1532 .instat_callback = usa49_instat_callback,
1533 .glocont_callback = usa49_glocont_callback,
1534 .indat_callback = usa49_indat_callback,
1535 .outdat_callback = usa2x_outdat_callback,
1536 .inack_callback = usa49_inack_callback,
1537 .outcont_callback = usa49_outcont_callback,
1538 }, {
1539 /* msg_usa90 callbacks */
1540 .instat_callback = usa90_instat_callback,
1541 .glocont_callback = usa28_glocont_callback,
1542 .indat_callback = usa90_indat_callback,
1543 .outdat_callback = usa2x_outdat_callback,
1544 .inack_callback = usa28_inack_callback,
1545 .outcont_callback = usa90_outcont_callback,
1546 }, {
1547 /* msg_usa67 callbacks */
1548 .instat_callback = usa67_instat_callback,
1549 .glocont_callback = usa67_glocont_callback,
1550 .indat_callback = usa26_indat_callback,
1551 .outdat_callback = usa2x_outdat_callback,
1552 .inack_callback = usa26_inack_callback,
1553 .outcont_callback = usa26_outcont_callback,
1554 }
1555};
1556
1557 /* Generic setup urbs function that uses
1558 data in device_details */
1559static void keyspan_setup_urbs(struct usb_serial *serial)
1560{
1561 int i, j;
1562 struct keyspan_serial_private *s_priv;
1563 const struct keyspan_device_details *d_details;
1564 struct usb_serial_port *port;
1565 struct keyspan_port_private *p_priv;
1566 struct callbacks *cback;
1567 int endp;
1568
1569 dbg("%s", __func__);
1570
1571 s_priv = usb_get_serial_data(serial);
1572 d_details = s_priv->device_details;
1573
1574 /* Setup values for the various callback routines */
1575 cback = &keyspan_callbacks[d_details->msg_format];
1576
1577 /* Allocate and set up urbs for each one that is in use,
1578 starting with instat endpoints */
1579 s_priv->instat_urb = keyspan_setup_urb
1580 (serial, d_details->instat_endpoint, USB_DIR_IN,
1581 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1582 cback->instat_callback);
1583
1584 s_priv->indat_urb = keyspan_setup_urb
1585 (serial, d_details->indat_endpoint, USB_DIR_IN,
1586 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1587 usa49wg_indat_callback);
1588
1589 s_priv->glocont_urb = keyspan_setup_urb
1590 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1591 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1592 cback->glocont_callback);
1593
1594 /* Setup endpoints for each port specific thing */
1595 for (i = 0; i < d_details->num_ports; i++) {
1596 port = serial->port[i];
1597 p_priv = usb_get_serial_port_data(port);
1598
1599 /* Do indat endpoints first, once for each flip */
1600 endp = d_details->indat_endpoints[i];
1601 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1602 p_priv->in_urbs[j] = keyspan_setup_urb
1603 (serial, endp, USB_DIR_IN, port,
1604 p_priv->in_buffer[j], 64,
1605 cback->indat_callback);
1606 }
1607 for (; j < 2; ++j)
1608 p_priv->in_urbs[j] = NULL;
1609
1610 /* outdat endpoints also have flip */
1611 endp = d_details->outdat_endpoints[i];
1612 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1613 p_priv->out_urbs[j] = keyspan_setup_urb
1614 (serial, endp, USB_DIR_OUT, port,
1615 p_priv->out_buffer[j], 64,
1616 cback->outdat_callback);
1617 }
1618 for (; j < 2; ++j)
1619 p_priv->out_urbs[j] = NULL;
1620
1621 /* inack endpoint */
1622 p_priv->inack_urb = keyspan_setup_urb
1623 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1624 port, p_priv->inack_buffer, 1, cback->inack_callback);
1625
1626 /* outcont endpoint */
1627 p_priv->outcont_urb = keyspan_setup_urb
1628 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1629 port, p_priv->outcont_buffer, 64,
1630 cback->outcont_callback);
1631 }
1632}
1633
1634/* usa19 function doesn't require prescaler */
1635static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1636 u8 *rate_low, u8 *prescaler, int portnum)
1637{
1638 u32 b16, /* baud rate times 16 (actual rate used internally) */
1639 div, /* divisor */
1640 cnt; /* inverse of divisor (programmed into 8051) */
1641
1642 dbg("%s - %d.", __func__, baud_rate);
1643
1644 /* prevent divide by zero... */
1645 b16 = baud_rate * 16L;
1646 if (b16 == 0)
1647 return KEYSPAN_INVALID_BAUD_RATE;
1648 /* Any "standard" rate over 57k6 is marginal on the USA-19
1649 as we run out of divisor resolution. */
1650 if (baud_rate > 57600)
1651 return KEYSPAN_INVALID_BAUD_RATE;
1652
1653 /* calculate the divisor and the counter (its inverse) */
1654 div = baudclk / b16;
1655 if (div == 0)
1656 return KEYSPAN_INVALID_BAUD_RATE;
1657 else
1658 cnt = 0 - div;
1659
1660 if (div > 0xffff)
1661 return KEYSPAN_INVALID_BAUD_RATE;
1662
1663 /* return the counter values if non-null */
1664 if (rate_low)
1665 *rate_low = (u8) (cnt & 0xff);
1666 if (rate_hi)
1667 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1668 if (rate_low && rate_hi)
1669 dbg("%s - %d %02x %02x.",
1670 __func__, baud_rate, *rate_hi, *rate_low);
1671 return KEYSPAN_BAUD_RATE_OK;
1672}
1673
1674/* usa19hs function doesn't require prescaler */
1675static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1676 u8 *rate_low, u8 *prescaler, int portnum)
1677{
1678 u32 b16, /* baud rate times 16 (actual rate used internally) */
1679 div; /* divisor */
1680
1681 dbg("%s - %d.", __func__, baud_rate);
1682
1683 /* prevent divide by zero... */
1684 b16 = baud_rate * 16L;
1685 if (b16 == 0)
1686 return KEYSPAN_INVALID_BAUD_RATE;
1687
1688 /* calculate the divisor */
1689 div = baudclk / b16;
1690 if (div == 0)
1691 return KEYSPAN_INVALID_BAUD_RATE;
1692
1693 if (div > 0xffff)
1694 return KEYSPAN_INVALID_BAUD_RATE;
1695
1696 /* return the counter values if non-null */
1697 if (rate_low)
1698 *rate_low = (u8) (div & 0xff);
1699
1700 if (rate_hi)
1701 *rate_hi = (u8) ((div >> 8) & 0xff);
1702
1703 if (rate_low && rate_hi)
1704 dbg("%s - %d %02x %02x.",
1705 __func__, baud_rate, *rate_hi, *rate_low);
1706
1707 return KEYSPAN_BAUD_RATE_OK;
1708}
1709
1710static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1711 u8 *rate_low, u8 *prescaler, int portnum)
1712{
1713 u32 b16, /* baud rate times 16 (actual rate used internally) */
1714 clk, /* clock with 13/8 prescaler */
1715 div, /* divisor using 13/8 prescaler */
1716 res, /* resulting baud rate using 13/8 prescaler */
1717 diff, /* error using 13/8 prescaler */
1718 smallest_diff;
1719 u8 best_prescaler;
1720 int i;
1721
1722 dbg("%s - %d.", __func__, baud_rate);
1723
1724 /* prevent divide by zero */
1725 b16 = baud_rate * 16L;
1726 if (b16 == 0)
1727 return KEYSPAN_INVALID_BAUD_RATE;
1728
1729 /* Calculate prescaler by trying them all and looking
1730 for best fit */
1731
1732 /* start with largest possible difference */
1733 smallest_diff = 0xffffffff;
1734
1735 /* 0 is an invalid prescaler, used as a flag */
1736 best_prescaler = 0;
1737
1738 for (i = 8; i <= 0xff; ++i) {
1739 clk = (baudclk * 8) / (u32) i;
1740
1741 div = clk / b16;
1742 if (div == 0)
1743 continue;
1744
1745 res = clk / div;
1746 diff = (res > b16) ? (res-b16) : (b16-res);
1747
1748 if (diff < smallest_diff) {
1749 best_prescaler = i;
1750 smallest_diff = diff;
1751 }
1752 }
1753
1754 if (best_prescaler == 0)
1755 return KEYSPAN_INVALID_BAUD_RATE;
1756
1757 clk = (baudclk * 8) / (u32) best_prescaler;
1758 div = clk / b16;
1759
1760 /* return the divisor and prescaler if non-null */
1761 if (rate_low)
1762 *rate_low = (u8) (div & 0xff);
1763 if (rate_hi)
1764 *rate_hi = (u8) ((div >> 8) & 0xff);
1765 if (prescaler) {
1766 *prescaler = best_prescaler;
1767 /* dbg("%s - %d %d", __func__, *prescaler, div); */
1768 }
1769 return KEYSPAN_BAUD_RATE_OK;
1770}
1771
1772 /* USA-28 supports different maximum baud rates on each port */
1773static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1774 u8 *rate_low, u8 *prescaler, int portnum)
1775{
1776 u32 b16, /* baud rate times 16 (actual rate used internally) */
1777 div, /* divisor */
1778 cnt; /* inverse of divisor (programmed into 8051) */
1779
1780 dbg("%s - %d.", __func__, baud_rate);
1781
1782 /* prevent divide by zero */
1783 b16 = baud_rate * 16L;
1784 if (b16 == 0)
1785 return KEYSPAN_INVALID_BAUD_RATE;
1786
1787 /* calculate the divisor and the counter (its inverse) */
1788 div = KEYSPAN_USA28_BAUDCLK / b16;
1789 if (div == 0)
1790 return KEYSPAN_INVALID_BAUD_RATE;
1791 else
1792 cnt = 0 - div;
1793
1794 /* check for out of range, based on portnum,
1795 and return result */
1796 if (portnum == 0) {
1797 if (div > 0xffff)
1798 return KEYSPAN_INVALID_BAUD_RATE;
1799 } else {
1800 if (portnum == 1) {
1801 if (div > 0xff)
1802 return KEYSPAN_INVALID_BAUD_RATE;
1803 } else
1804 return KEYSPAN_INVALID_BAUD_RATE;
1805 }
1806
1807 /* return the counter values if not NULL
1808 (port 1 will ignore retHi) */
1809 if (rate_low)
1810 *rate_low = (u8) (cnt & 0xff);
1811 if (rate_hi)
1812 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1813 dbg("%s - %d OK.", __func__, baud_rate);
1814 return KEYSPAN_BAUD_RATE_OK;
1815}
1816
1817static int keyspan_usa26_send_setup(struct usb_serial *serial,
1818 struct usb_serial_port *port,
1819 int reset_port)
1820{
1821 struct keyspan_usa26_portControlMessage msg;
1822 struct keyspan_serial_private *s_priv;
1823 struct keyspan_port_private *p_priv;
1824 const struct keyspan_device_details *d_details;
1825 int outcont_urb;
1826 struct urb *this_urb;
1827 int device_port, err;
1828
1829 dbg("%s reset=%d", __func__, reset_port);
1830
1831 s_priv = usb_get_serial_data(serial);
1832 p_priv = usb_get_serial_port_data(port);
1833 d_details = s_priv->device_details;
1834 device_port = port->number - port->serial->minor;
1835
1836 outcont_urb = d_details->outcont_endpoints[port->number];
1837 this_urb = p_priv->outcont_urb;
1838
1839 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
1840
1841 /* Make sure we have an urb then send the message */
1842 if (this_urb == NULL) {
1843 dbg("%s - oops no urb.", __func__);
1844 return -1;
1845 }
1846
1847 /* Save reset port val for resend.
1848 Don't overwrite resend for open/close condition. */
1849 if ((reset_port + 1) > p_priv->resend_cont)
1850 p_priv->resend_cont = reset_port + 1;
1851 if (this_urb->status == -EINPROGRESS) {
1852 /* dbg("%s - already writing", __func__); */
1853 mdelay(5);
1854 return -1;
1855 }
1856
1857 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
1858
1859 /* Only set baud rate if it's changed */
1860 if (p_priv->old_baud != p_priv->baud) {
1861 p_priv->old_baud = p_priv->baud;
1862 msg.setClocking = 0xff;
1863 if (d_details->calculate_baud_rate
1864 (p_priv->baud, d_details->baudclk, &msg.baudHi,
1865 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
1866 dbg("%s - Invalid baud rate %d requested, using 9600.",
1867 __func__, p_priv->baud);
1868 msg.baudLo = 0;
1869 msg.baudHi = 125; /* Values for 9600 baud */
1870 msg.prescaler = 10;
1871 }
1872 msg.setPrescaler = 0xff;
1873 }
1874
1875 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1876 switch (p_priv->cflag & CSIZE) {
1877 case CS5:
1878 msg.lcr |= USA_DATABITS_5;
1879 break;
1880 case CS6:
1881 msg.lcr |= USA_DATABITS_6;
1882 break;
1883 case CS7:
1884 msg.lcr |= USA_DATABITS_7;
1885 break;
1886 case CS8:
1887 msg.lcr |= USA_DATABITS_8;
1888 break;
1889 }
1890 if (p_priv->cflag & PARENB) {
1891 /* note USA_PARITY_NONE == 0 */
1892 msg.lcr |= (p_priv->cflag & PARODD)?
1893 USA_PARITY_ODD : USA_PARITY_EVEN;
1894 }
1895 msg.setLcr = 0xff;
1896
1897 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1898 msg.xonFlowControl = 0;
1899 msg.setFlowControl = 0xff;
1900 msg.forwardingLength = 16;
1901 msg.xonChar = 17;
1902 msg.xoffChar = 19;
1903
1904 /* Opening port */
1905 if (reset_port == 1) {
1906 msg._txOn = 1;
1907 msg._txOff = 0;
1908 msg.txFlush = 0;
1909 msg.txBreak = 0;
1910 msg.rxOn = 1;
1911 msg.rxOff = 0;
1912 msg.rxFlush = 1;
1913 msg.rxForward = 0;
1914 msg.returnStatus = 0;
1915 msg.resetDataToggle = 0xff;
1916 }
1917
1918 /* Closing port */
1919 else if (reset_port == 2) {
1920 msg._txOn = 0;
1921 msg._txOff = 1;
1922 msg.txFlush = 0;
1923 msg.txBreak = 0;
1924 msg.rxOn = 0;
1925 msg.rxOff = 1;
1926 msg.rxFlush = 1;
1927 msg.rxForward = 0;
1928 msg.returnStatus = 0;
1929 msg.resetDataToggle = 0;
1930 }
1931
1932 /* Sending intermediate configs */
1933 else {
1934 msg._txOn = (!p_priv->break_on);
1935 msg._txOff = 0;
1936 msg.txFlush = 0;
1937 msg.txBreak = (p_priv->break_on);
1938 msg.rxOn = 0;
1939 msg.rxOff = 0;
1940 msg.rxFlush = 0;
1941 msg.rxForward = 0;
1942 msg.returnStatus = 0;
1943 msg.resetDataToggle = 0x0;
1944 }
1945
1946 /* Do handshaking outputs */
1947 msg.setTxTriState_setRts = 0xff;
1948 msg.txTriState_rts = p_priv->rts_state;
1949
1950 msg.setHskoa_setDtr = 0xff;
1951 msg.hskoa_dtr = p_priv->dtr_state;
1952
1953 p_priv->resend_cont = 0;
1954 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1955
1956 /* send the data out the device on control endpoint */
1957 this_urb->transfer_buffer_length = sizeof(msg);
1958
1959 this_urb->dev = serial->dev;
1960 err = usb_submit_urb(this_urb, GFP_ATOMIC);
1961 if (err != 0)
1962 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
1963#if 0
1964 else {
1965 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
1966 outcont_urb, this_urb->transfer_buffer_length,
1967 usb_pipeendpoint(this_urb->pipe));
1968 }
1969#endif
1970
1971 return 0;
1972}
1973
1974static int keyspan_usa28_send_setup(struct usb_serial *serial,
1975 struct usb_serial_port *port,
1976 int reset_port)
1977{
1978 struct keyspan_usa28_portControlMessage msg;
1979 struct keyspan_serial_private *s_priv;
1980 struct keyspan_port_private *p_priv;
1981 const struct keyspan_device_details *d_details;
1982 struct urb *this_urb;
1983 int device_port, err;
1984
1985 dbg("%s", __func__);
1986
1987 s_priv = usb_get_serial_data(serial);
1988 p_priv = usb_get_serial_port_data(port);
1989 d_details = s_priv->device_details;
1990 device_port = port->number - port->serial->minor;
1991
1992 /* only do something if we have a bulk out endpoint */
1993 this_urb = p_priv->outcont_urb;
1994 if (this_urb == NULL) {
1995 dbg("%s - oops no urb.", __func__);
1996 return -1;
1997 }
1998
1999 /* Save reset port val for resend.
2000 Don't overwrite resend for open/close condition. */
2001 if ((reset_port + 1) > p_priv->resend_cont)
2002 p_priv->resend_cont = reset_port + 1;
2003 if (this_urb->status == -EINPROGRESS) {
2004 dbg("%s already writing", __func__);
2005 mdelay(5);
2006 return -1;
2007 }
2008
2009 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2010
2011 msg.setBaudRate = 1;
2012 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2013 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2014 dbg("%s - Invalid baud rate requested %d.",
2015 __func__, p_priv->baud);
2016 msg.baudLo = 0xff;
2017 msg.baudHi = 0xb2; /* Values for 9600 baud */
2018 }
2019
2020 /* If parity is enabled, we must calculate it ourselves. */
2021 msg.parity = 0; /* XXX for now */
2022
2023 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2024 msg.xonFlowControl = 0;
2025
2026 /* Do handshaking outputs, DTR is inverted relative to RTS */
2027 msg.rts = p_priv->rts_state;
2028 msg.dtr = p_priv->dtr_state;
2029
2030 msg.forwardingLength = 16;
2031 msg.forwardMs = 10;
2032 msg.breakThreshold = 45;
2033 msg.xonChar = 17;
2034 msg.xoffChar = 19;
2035
2036 /*msg.returnStatus = 1;
2037 msg.resetDataToggle = 0xff;*/
2038 /* Opening port */
2039 if (reset_port == 1) {
2040 msg._txOn = 1;
2041 msg._txOff = 0;
2042 msg.txFlush = 0;
2043 msg.txForceXoff = 0;
2044 msg.txBreak = 0;
2045 msg.rxOn = 1;
2046 msg.rxOff = 0;
2047 msg.rxFlush = 1;
2048 msg.rxForward = 0;
2049 msg.returnStatus = 0;
2050 msg.resetDataToggle = 0xff;
2051 }
2052 /* Closing port */
2053 else if (reset_port == 2) {
2054 msg._txOn = 0;
2055 msg._txOff = 1;
2056 msg.txFlush = 0;
2057 msg.txForceXoff = 0;
2058 msg.txBreak = 0;
2059 msg.rxOn = 0;
2060 msg.rxOff = 1;
2061 msg.rxFlush = 1;
2062 msg.rxForward = 0;
2063 msg.returnStatus = 0;
2064 msg.resetDataToggle = 0;
2065 }
2066 /* Sending intermediate configs */
2067 else {
2068 msg._txOn = (!p_priv->break_on);
2069 msg._txOff = 0;
2070 msg.txFlush = 0;
2071 msg.txForceXoff = 0;
2072 msg.txBreak = (p_priv->break_on);
2073 msg.rxOn = 0;
2074 msg.rxOff = 0;
2075 msg.rxFlush = 0;
2076 msg.rxForward = 0;
2077 msg.returnStatus = 0;
2078 msg.resetDataToggle = 0x0;
2079 }
2080
2081 p_priv->resend_cont = 0;
2082 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2083
2084 /* send the data out the device on control endpoint */
2085 this_urb->transfer_buffer_length = sizeof(msg);
2086
2087 this_urb->dev = serial->dev;
2088 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2089 if (err != 0)
2090 dbg("%s - usb_submit_urb(setup) failed", __func__);
2091#if 0
2092 else {
2093 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
2094 this_urb->transfer_buffer_length);
2095 }
2096#endif
2097
2098 return 0;
2099}
2100
2101static int keyspan_usa49_send_setup(struct usb_serial *serial,
2102 struct usb_serial_port *port,
2103 int reset_port)
2104{
2105 struct keyspan_usa49_portControlMessage msg;
2106 struct usb_ctrlrequest *dr = NULL;
2107 struct keyspan_serial_private *s_priv;
2108 struct keyspan_port_private *p_priv;
2109 const struct keyspan_device_details *d_details;
2110 struct urb *this_urb;
2111 int err, device_port;
2112
2113 dbg("%s", __func__);
2114
2115 s_priv = usb_get_serial_data(serial);
2116 p_priv = usb_get_serial_port_data(port);
2117 d_details = s_priv->device_details;
2118
2119 this_urb = s_priv->glocont_urb;
2120
2121 /* Work out which port within the device is being setup */
2122 device_port = port->number - port->serial->minor;
2123
2124 /* Make sure we have an urb then send the message */
2125 if (this_urb == NULL) {
2126 dbg("%s - oops no urb for port %d.", __func__, port->number);
2127 return -1;
2128 }
2129
2130 dbg("%s - endpoint %d port %d (%d)",
2131 __func__, usb_pipeendpoint(this_urb->pipe),
2132 port->number, device_port);
2133
2134 /* Save reset port val for resend.
2135 Don't overwrite resend for open/close condition. */
2136 if ((reset_port + 1) > p_priv->resend_cont)
2137 p_priv->resend_cont = reset_port + 1;
2138
2139 if (this_urb->status == -EINPROGRESS) {
2140 /* dbg("%s - already writing", __func__); */
2141 mdelay(5);
2142 return -1;
2143 }
2144
2145 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2146
2147 /*msg.portNumber = port->number;*/
2148 msg.portNumber = device_port;
2149
2150 /* Only set baud rate if it's changed */
2151 if (p_priv->old_baud != p_priv->baud) {
2152 p_priv->old_baud = p_priv->baud;
2153 msg.setClocking = 0xff;
2154 if (d_details->calculate_baud_rate
2155 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2156 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2157 dbg("%s - Invalid baud rate %d requested, using 9600.",
2158 __func__, p_priv->baud);
2159 msg.baudLo = 0;
2160 msg.baudHi = 125; /* Values for 9600 baud */
2161 msg.prescaler = 10;
2162 }
2163 /* msg.setPrescaler = 0xff; */
2164 }
2165
2166 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2167 switch (p_priv->cflag & CSIZE) {
2168 case CS5:
2169 msg.lcr |= USA_DATABITS_5;
2170 break;
2171 case CS6:
2172 msg.lcr |= USA_DATABITS_6;
2173 break;
2174 case CS7:
2175 msg.lcr |= USA_DATABITS_7;
2176 break;
2177 case CS8:
2178 msg.lcr |= USA_DATABITS_8;
2179 break;
2180 }
2181 if (p_priv->cflag & PARENB) {
2182 /* note USA_PARITY_NONE == 0 */
2183 msg.lcr |= (p_priv->cflag & PARODD)?
2184 USA_PARITY_ODD : USA_PARITY_EVEN;
2185 }
2186 msg.setLcr = 0xff;
2187
2188 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2189 msg.xonFlowControl = 0;
2190 msg.setFlowControl = 0xff;
2191
2192 msg.forwardingLength = 16;
2193 msg.xonChar = 17;
2194 msg.xoffChar = 19;
2195
2196 /* Opening port */
2197 if (reset_port == 1) {
2198 msg._txOn = 1;
2199 msg._txOff = 0;
2200 msg.txFlush = 0;
2201 msg.txBreak = 0;
2202 msg.rxOn = 1;
2203 msg.rxOff = 0;
2204 msg.rxFlush = 1;
2205 msg.rxForward = 0;
2206 msg.returnStatus = 0;
2207 msg.resetDataToggle = 0xff;
2208 msg.enablePort = 1;
2209 msg.disablePort = 0;
2210 }
2211 /* Closing port */
2212 else if (reset_port == 2) {
2213 msg._txOn = 0;
2214 msg._txOff = 1;
2215 msg.txFlush = 0;
2216 msg.txBreak = 0;
2217 msg.rxOn = 0;
2218 msg.rxOff = 1;
2219 msg.rxFlush = 1;
2220 msg.rxForward = 0;
2221 msg.returnStatus = 0;
2222 msg.resetDataToggle = 0;
2223 msg.enablePort = 0;
2224 msg.disablePort = 1;
2225 }
2226 /* Sending intermediate configs */
2227 else {
2228 msg._txOn = (!p_priv->break_on);
2229 msg._txOff = 0;
2230 msg.txFlush = 0;
2231 msg.txBreak = (p_priv->break_on);
2232 msg.rxOn = 0;
2233 msg.rxOff = 0;
2234 msg.rxFlush = 0;
2235 msg.rxForward = 0;
2236 msg.returnStatus = 0;
2237 msg.resetDataToggle = 0x0;
2238 msg.enablePort = 0;
2239 msg.disablePort = 0;
2240 }
2241
2242 /* Do handshaking outputs */
2243 msg.setRts = 0xff;
2244 msg.rts = p_priv->rts_state;
2245
2246 msg.setDtr = 0xff;
2247 msg.dtr = p_priv->dtr_state;
2248
2249 p_priv->resend_cont = 0;
2250
2251 /* if the device is a 49wg, we send control message on usb
2252 control EP 0 */
2253
2254 if (d_details->product_id == keyspan_usa49wg_product_id) {
2255 dr = (void *)(s_priv->ctrl_buf);
2256 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2257 dr->bRequest = 0xB0; /* 49wg control message */;
2258 dr->wValue = 0;
2259 dr->wIndex = 0;
2260 dr->wLength = cpu_to_le16(sizeof(msg));
2261
2262 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2263
2264 usb_fill_control_urb(this_urb, serial->dev,
2265 usb_sndctrlpipe(serial->dev, 0),
2266 (unsigned char *)dr, s_priv->glocont_buf,
2267 sizeof(msg), usa49_glocont_callback, serial);
2268
2269 } else {
2270 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2271
2272 /* send the data out the device on control endpoint */
2273 this_urb->transfer_buffer_length = sizeof(msg);
2274
2275 this_urb->dev = serial->dev;
2276 }
2277 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2278 if (err != 0)
2279 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2280#if 0
2281 else {
2282 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
2283 outcont_urb, this_urb->transfer_buffer_length,
2284 usb_pipeendpoint(this_urb->pipe));
2285 }
2286#endif
2287
2288 return 0;
2289}
2290
2291static int keyspan_usa90_send_setup(struct usb_serial *serial,
2292 struct usb_serial_port *port,
2293 int reset_port)
2294{
2295 struct keyspan_usa90_portControlMessage msg;
2296 struct keyspan_serial_private *s_priv;
2297 struct keyspan_port_private *p_priv;
2298 const struct keyspan_device_details *d_details;
2299 struct urb *this_urb;
2300 int err;
2301 u8 prescaler;
2302
2303 dbg("%s", __func__);
2304
2305 s_priv = usb_get_serial_data(serial);
2306 p_priv = usb_get_serial_port_data(port);
2307 d_details = s_priv->device_details;
2308
2309 /* only do something if we have a bulk out endpoint */
2310 this_urb = p_priv->outcont_urb;
2311 if (this_urb == NULL) {
2312 dbg("%s - oops no urb.", __func__);
2313 return -1;
2314 }
2315
2316 /* Save reset port val for resend.
2317 Don't overwrite resend for open/close condition. */
2318 if ((reset_port + 1) > p_priv->resend_cont)
2319 p_priv->resend_cont = reset_port + 1;
2320 if (this_urb->status == -EINPROGRESS) {
2321 dbg("%s already writing", __func__);
2322 mdelay(5);
2323 return -1;
2324 }
2325
2326 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2327
2328 /* Only set baud rate if it's changed */
2329 if (p_priv->old_baud != p_priv->baud) {
2330 p_priv->old_baud = p_priv->baud;
2331 msg.setClocking = 0x01;
2332 if (d_details->calculate_baud_rate
2333 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2334 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2335 dbg("%s - Invalid baud rate %d requested, using 9600.",
2336 __func__, p_priv->baud);
2337 p_priv->baud = 9600;
2338 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2339 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2340 }
2341 msg.setRxMode = 1;
2342 msg.setTxMode = 1;
2343 }
2344
2345 /* modes must always be correctly specified */
2346 if (p_priv->baud > 57600) {
2347 msg.rxMode = RXMODE_DMA;
2348 msg.txMode = TXMODE_DMA;
2349 } else {
2350 msg.rxMode = RXMODE_BYHAND;
2351 msg.txMode = TXMODE_BYHAND;
2352 }
2353
2354 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2355 switch (p_priv->cflag & CSIZE) {
2356 case CS5:
2357 msg.lcr |= USA_DATABITS_5;
2358 break;
2359 case CS6:
2360 msg.lcr |= USA_DATABITS_6;
2361 break;
2362 case CS7:
2363 msg.lcr |= USA_DATABITS_7;
2364 break;
2365 case CS8:
2366 msg.lcr |= USA_DATABITS_8;
2367 break;
2368 }
2369 if (p_priv->cflag & PARENB) {
2370 /* note USA_PARITY_NONE == 0 */
2371 msg.lcr |= (p_priv->cflag & PARODD)?
2372 USA_PARITY_ODD : USA_PARITY_EVEN;
2373 }
2374 if (p_priv->old_cflag != p_priv->cflag) {
2375 p_priv->old_cflag = p_priv->cflag;
2376 msg.setLcr = 0x01;
2377 }
2378
2379 if (p_priv->flow_control == flow_cts)
2380 msg.txFlowControl = TXFLOW_CTS;
2381 msg.setTxFlowControl = 0x01;
2382 msg.setRxFlowControl = 0x01;
2383
2384 msg.rxForwardingLength = 16;
2385 msg.rxForwardingTimeout = 16;
2386 msg.txAckSetting = 0;
2387 msg.xonChar = 17;
2388 msg.xoffChar = 19;
2389
2390 /* Opening port */
2391 if (reset_port == 1) {
2392 msg.portEnabled = 1;
2393 msg.rxFlush = 1;
2394 msg.txBreak = (p_priv->break_on);
2395 }
2396 /* Closing port */
2397 else if (reset_port == 2)
2398 msg.portEnabled = 0;
2399 /* Sending intermediate configs */
2400 else {
2401 msg.portEnabled = 1;
2402 msg.txBreak = (p_priv->break_on);
2403 }
2404
2405 /* Do handshaking outputs */
2406 msg.setRts = 0x01;
2407 msg.rts = p_priv->rts_state;
2408
2409 msg.setDtr = 0x01;
2410 msg.dtr = p_priv->dtr_state;
2411
2412 p_priv->resend_cont = 0;
2413 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2414
2415 /* send the data out the device on control endpoint */
2416 this_urb->transfer_buffer_length = sizeof(msg);
2417
2418 this_urb->dev = serial->dev;
2419 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2420 if (err != 0)
2421 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2422 return 0;
2423}
2424
2425static int keyspan_usa67_send_setup(struct usb_serial *serial,
2426 struct usb_serial_port *port,
2427 int reset_port)
2428{
2429 struct keyspan_usa67_portControlMessage msg;
2430 struct keyspan_serial_private *s_priv;
2431 struct keyspan_port_private *p_priv;
2432 const struct keyspan_device_details *d_details;
2433 struct urb *this_urb;
2434 int err, device_port;
2435
2436 dbg("%s", __func__);
2437
2438 s_priv = usb_get_serial_data(serial);
2439 p_priv = usb_get_serial_port_data(port);
2440 d_details = s_priv->device_details;
2441
2442 this_urb = s_priv->glocont_urb;
2443
2444 /* Work out which port within the device is being setup */
2445 device_port = port->number - port->serial->minor;
2446
2447 /* Make sure we have an urb then send the message */
2448 if (this_urb == NULL) {
2449 dbg("%s - oops no urb for port %d.", __func__,
2450 port->number);
2451 return -1;
2452 }
2453
2454 /* Save reset port val for resend.
2455 Don't overwrite resend for open/close condition. */
2456 if ((reset_port + 1) > p_priv->resend_cont)
2457 p_priv->resend_cont = reset_port + 1;
2458 if (this_urb->status == -EINPROGRESS) {
2459 /* dbg("%s - already writing", __func__); */
2460 mdelay(5);
2461 return -1;
2462 }
2463
2464 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2465
2466 msg.port = device_port;
2467
2468 /* Only set baud rate if it's changed */
2469 if (p_priv->old_baud != p_priv->baud) {
2470 p_priv->old_baud = p_priv->baud;
2471 msg.setClocking = 0xff;
2472 if (d_details->calculate_baud_rate
2473 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2474 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2475 dbg("%s - Invalid baud rate %d requested, using 9600.",
2476 __func__, p_priv->baud);
2477 msg.baudLo = 0;
2478 msg.baudHi = 125; /* Values for 9600 baud */
2479 msg.prescaler = 10;
2480 }
2481 msg.setPrescaler = 0xff;
2482 }
2483
2484 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2485 switch (p_priv->cflag & CSIZE) {
2486 case CS5:
2487 msg.lcr |= USA_DATABITS_5;
2488 break;
2489 case CS6:
2490 msg.lcr |= USA_DATABITS_6;
2491 break;
2492 case CS7:
2493 msg.lcr |= USA_DATABITS_7;
2494 break;
2495 case CS8:
2496 msg.lcr |= USA_DATABITS_8;
2497 break;
2498 }
2499 if (p_priv->cflag & PARENB) {
2500 /* note USA_PARITY_NONE == 0 */
2501 msg.lcr |= (p_priv->cflag & PARODD)?
2502 USA_PARITY_ODD : USA_PARITY_EVEN;
2503 }
2504 msg.setLcr = 0xff;
2505
2506 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2507 msg.xonFlowControl = 0;
2508 msg.setFlowControl = 0xff;
2509 msg.forwardingLength = 16;
2510 msg.xonChar = 17;
2511 msg.xoffChar = 19;
2512
2513 if (reset_port == 1) {
2514 /* Opening port */
2515 msg._txOn = 1;
2516 msg._txOff = 0;
2517 msg.txFlush = 0;
2518 msg.txBreak = 0;
2519 msg.rxOn = 1;
2520 msg.rxOff = 0;
2521 msg.rxFlush = 1;
2522 msg.rxForward = 0;
2523 msg.returnStatus = 0;
2524 msg.resetDataToggle = 0xff;
2525 } else if (reset_port == 2) {
2526 /* Closing port */
2527 msg._txOn = 0;
2528 msg._txOff = 1;
2529 msg.txFlush = 0;
2530 msg.txBreak = 0;
2531 msg.rxOn = 0;
2532 msg.rxOff = 1;
2533 msg.rxFlush = 1;
2534 msg.rxForward = 0;
2535 msg.returnStatus = 0;
2536 msg.resetDataToggle = 0;
2537 } else {
2538 /* Sending intermediate configs */
2539 msg._txOn = (!p_priv->break_on);
2540 msg._txOff = 0;
2541 msg.txFlush = 0;
2542 msg.txBreak = (p_priv->break_on);
2543 msg.rxOn = 0;
2544 msg.rxOff = 0;
2545 msg.rxFlush = 0;
2546 msg.rxForward = 0;
2547 msg.returnStatus = 0;
2548 msg.resetDataToggle = 0x0;
2549 }
2550
2551 /* Do handshaking outputs */
2552 msg.setTxTriState_setRts = 0xff;
2553 msg.txTriState_rts = p_priv->rts_state;
2554
2555 msg.setHskoa_setDtr = 0xff;
2556 msg.hskoa_dtr = p_priv->dtr_state;
2557
2558 p_priv->resend_cont = 0;
2559
2560 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2561
2562 /* send the data out the device on control endpoint */
2563 this_urb->transfer_buffer_length = sizeof(msg);
2564 this_urb->dev = serial->dev;
2565
2566 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2567 if (err != 0)
2568 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
2569 err);
2570 return 0;
2571}
2572
2573static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2574{
2575 struct usb_serial *serial = port->serial;
2576 struct keyspan_serial_private *s_priv;
2577 const struct keyspan_device_details *d_details;
2578
2579 dbg("%s", __func__);
2580
2581 s_priv = usb_get_serial_data(serial);
2582 d_details = s_priv->device_details;
2583
2584 switch (d_details->msg_format) {
2585 case msg_usa26:
2586 keyspan_usa26_send_setup(serial, port, reset_port);
2587 break;
2588 case msg_usa28:
2589 keyspan_usa28_send_setup(serial, port, reset_port);
2590 break;
2591 case msg_usa49:
2592 keyspan_usa49_send_setup(serial, port, reset_port);
2593 break;
2594 case msg_usa90:
2595 keyspan_usa90_send_setup(serial, port, reset_port);
2596 break;
2597 case msg_usa67:
2598 keyspan_usa67_send_setup(serial, port, reset_port);
2599 break;
2600 }
2601}
2602
2603
2604/* Gets called by the "real" driver (ie once firmware is loaded
2605 and renumeration has taken place. */
2606static int keyspan_startup(struct usb_serial *serial)
2607{
2608 int i, err;
2609 struct usb_serial_port *port;
2610 struct keyspan_serial_private *s_priv;
2611 struct keyspan_port_private *p_priv;
2612 const struct keyspan_device_details *d_details;
2613
2614 dbg("%s", __func__);
2615
2616 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2617 if (d_details->product_id ==
2618 le16_to_cpu(serial->dev->descriptor.idProduct))
2619 break;
2620 if (d_details == NULL) {
2621 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2622 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2623 return 1;
2624 }
2625
2626 /* Setup private data for serial driver */
2627 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2628 if (!s_priv) {
2629 dbg("%s - kmalloc for keyspan_serial_private failed.",
2630 __func__);
2631 return -ENOMEM;
2632 }
2633
2634 s_priv->device_details = d_details;
2635 usb_set_serial_data(serial, s_priv);
2636
2637 /* Now setup per port private data */
2638 for (i = 0; i < serial->num_ports; i++) {
2639 port = serial->port[i];
2640 p_priv = kzalloc(sizeof(struct keyspan_port_private),
2641 GFP_KERNEL);
2642 if (!p_priv) {
2643 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
2644 return 1;
2645 }
2646 p_priv->device_details = d_details;
2647 usb_set_serial_port_data(port, p_priv);
2648 }
2649
2650 keyspan_setup_urbs(serial);
2651
2652 if (s_priv->instat_urb != NULL) {
2653 s_priv->instat_urb->dev = serial->dev;
2654 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2655 if (err != 0)
2656 dbg("%s - submit instat urb failed %d", __func__,
2657 err);
2658 }
2659 if (s_priv->indat_urb != NULL) {
2660 s_priv->indat_urb->dev = serial->dev;
2661 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2662 if (err != 0)
2663 dbg("%s - submit indat urb failed %d", __func__,
2664 err);
2665 }
2666
2667 return 0;
2668}
2669
2670static void keyspan_disconnect(struct usb_serial *serial)
2671{
2672 int i, j;
2673 struct usb_serial_port *port;
2674 struct keyspan_serial_private *s_priv;
2675 struct keyspan_port_private *p_priv;
2676
2677 dbg("%s", __func__);
2678
2679 s_priv = usb_get_serial_data(serial);
2680
2681 /* Stop reading/writing urbs */
2682 stop_urb(s_priv->instat_urb);
2683 stop_urb(s_priv->glocont_urb);
2684 stop_urb(s_priv->indat_urb);
2685 for (i = 0; i < serial->num_ports; ++i) {
2686 port = serial->port[i];
2687 p_priv = usb_get_serial_port_data(port);
2688 stop_urb(p_priv->inack_urb);
2689 stop_urb(p_priv->outcont_urb);
2690 for (j = 0; j < 2; j++) {
2691 stop_urb(p_priv->in_urbs[j]);
2692 stop_urb(p_priv->out_urbs[j]);
2693 }
2694 }
2695
2696 /* Now free them */
2697 usb_free_urb(s_priv->instat_urb);
2698 usb_free_urb(s_priv->indat_urb);
2699 usb_free_urb(s_priv->glocont_urb);
2700 for (i = 0; i < serial->num_ports; ++i) {
2701 port = serial->port[i];
2702 p_priv = usb_get_serial_port_data(port);
2703 usb_free_urb(p_priv->inack_urb);
2704 usb_free_urb(p_priv->outcont_urb);
2705 for (j = 0; j < 2; j++) {
2706 usb_free_urb(p_priv->in_urbs[j]);
2707 usb_free_urb(p_priv->out_urbs[j]);
2708 }
2709 }
2710}
2711
2712static void keyspan_release(struct usb_serial *serial)
2713{
2714 int i;
2715 struct usb_serial_port *port;
2716 struct keyspan_serial_private *s_priv;
2717
2718 dbg("%s", __func__);
2719
2720 s_priv = usb_get_serial_data(serial);
2721
2722 /* dbg("Freeing serial->private."); */
2723 kfree(s_priv);
2724
2725 /* dbg("Freeing port->private."); */
2726 /* Now free per port private data */
2727 for (i = 0; i < serial->num_ports; i++) {
2728 port = serial->port[i];
2729 kfree(usb_get_serial_port_data(port));
2730 }
2731}
2732
2733MODULE_AUTHOR(DRIVER_AUTHOR);
2734MODULE_DESCRIPTION(DRIVER_DESC);
2735MODULE_LICENSE("GPL");
2736
2737MODULE_FIRMWARE("keyspan/usa28.fw");
2738MODULE_FIRMWARE("keyspan/usa28x.fw");
2739MODULE_FIRMWARE("keyspan/usa28xa.fw");
2740MODULE_FIRMWARE("keyspan/usa28xb.fw");
2741MODULE_FIRMWARE("keyspan/usa19.fw");
2742MODULE_FIRMWARE("keyspan/usa19qi.fw");
2743MODULE_FIRMWARE("keyspan/mpr.fw");
2744MODULE_FIRMWARE("keyspan/usa19qw.fw");
2745MODULE_FIRMWARE("keyspan/usa18x.fw");
2746MODULE_FIRMWARE("keyspan/usa19w.fw");
2747MODULE_FIRMWARE("keyspan/usa49w.fw");
2748MODULE_FIRMWARE("keyspan/usa49wlc.fw");
2749
2750module_param(debug, bool, S_IRUGO | S_IWUSR);
2751MODULE_PARM_DESC(debug, "Debug enabled or not");
2752
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 Keyspan USB to Serial Converter driver
4
5 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
6 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
7
8 See http://blemings.org/hugh/keyspan.html for more information.
9
10 Code in this driver inspired by and in a number of places taken
11 from Brian Warner's original Keyspan-PDA driver.
12
13 This driver has been put together with the support of Innosys, Inc.
14 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
15 Thanks Guys :)
16
17 Thanks to Paulus for miscellaneous tidy ups, some largish chunks
18 of much nicer and/or completely new code and (perhaps most uniquely)
19 having the patience to sit down and explain why and where he'd changed
20 stuff.
21
22 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
23 staff in their work on open source projects.
24*/
25
26
27#include <linux/kernel.h>
28#include <linux/jiffies.h>
29#include <linux/errno.h>
30#include <linux/slab.h>
31#include <linux/tty.h>
32#include <linux/tty_driver.h>
33#include <linux/tty_flip.h>
34#include <linux/module.h>
35#include <linux/spinlock.h>
36#include <linux/uaccess.h>
37#include <linux/usb.h>
38#include <linux/usb/serial.h>
39#include <linux/usb/ezusb.h>
40
41#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
42#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
43
44static void keyspan_send_setup(struct usb_serial_port *port, int reset_port);
45
46static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
47 u32 baud_rate, u32 baudclk,
48 u8 *rate_hi, u8 *rate_low,
49 u8 *prescaler, int portnum);
50static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
51 u32 baud_rate, u32 baudclk,
52 u8 *rate_hi, u8 *rate_low,
53 u8 *prescaler, int portnum);
54static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
55 u32 baud_rate, u32 baudclk,
56 u8 *rate_hi, u8 *rate_low,
57 u8 *prescaler, int portnum);
58static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
59 u32 baud_rate, u32 baudclk,
60 u8 *rate_hi, u8 *rate_low,
61 u8 *prescaler, int portnum);
62
63static int keyspan_usa28_send_setup(struct usb_serial *serial,
64 struct usb_serial_port *port,
65 int reset_port);
66static int keyspan_usa26_send_setup(struct usb_serial *serial,
67 struct usb_serial_port *port,
68 int reset_port);
69static int keyspan_usa49_send_setup(struct usb_serial *serial,
70 struct usb_serial_port *port,
71 int reset_port);
72static int keyspan_usa90_send_setup(struct usb_serial *serial,
73 struct usb_serial_port *port,
74 int reset_port);
75static int keyspan_usa67_send_setup(struct usb_serial *serial,
76 struct usb_serial_port *port,
77 int reset_port);
78
79/* Values used for baud rate calculation - device specific */
80#define KEYSPAN_INVALID_BAUD_RATE (-1)
81#define KEYSPAN_BAUD_RATE_OK (0)
82#define KEYSPAN_USA18X_BAUDCLK (12000000L) /* a guess */
83#define KEYSPAN_USA19_BAUDCLK (12000000L)
84#define KEYSPAN_USA19W_BAUDCLK (24000000L)
85#define KEYSPAN_USA19HS_BAUDCLK (14769231L)
86#define KEYSPAN_USA28_BAUDCLK (1843200L)
87#define KEYSPAN_USA28X_BAUDCLK (12000000L)
88#define KEYSPAN_USA49W_BAUDCLK (48000000L)
89
90/* Some constants used to characterise each device. */
91#define KEYSPAN_MAX_NUM_PORTS (4)
92#define KEYSPAN_MAX_FLIPS (2)
93
94/*
95 * Device info for the Keyspan serial converter, used by the overall
96 * usb-serial probe function.
97 */
98#define KEYSPAN_VENDOR_ID (0x06cd)
99
100/* Product IDs for the products supported, pre-renumeration */
101#define keyspan_usa18x_pre_product_id 0x0105
102#define keyspan_usa19_pre_product_id 0x0103
103#define keyspan_usa19qi_pre_product_id 0x010b
104#define keyspan_mpr_pre_product_id 0x011b
105#define keyspan_usa19qw_pre_product_id 0x0118
106#define keyspan_usa19w_pre_product_id 0x0106
107#define keyspan_usa28_pre_product_id 0x0101
108#define keyspan_usa28x_pre_product_id 0x0102
109#define keyspan_usa28xa_pre_product_id 0x0114
110#define keyspan_usa28xb_pre_product_id 0x0113
111#define keyspan_usa49w_pre_product_id 0x0109
112#define keyspan_usa49wlc_pre_product_id 0x011a
113
114/*
115 * Product IDs post-renumeration. Note that the 28x and 28xb have the same
116 * id's post-renumeration but behave identically so it's not an issue. As
117 * such, the 28xb is not listed in any of the device tables.
118 */
119#define keyspan_usa18x_product_id 0x0112
120#define keyspan_usa19_product_id 0x0107
121#define keyspan_usa19qi_product_id 0x010c
122#define keyspan_usa19hs_product_id 0x0121
123#define keyspan_mpr_product_id 0x011c
124#define keyspan_usa19qw_product_id 0x0119
125#define keyspan_usa19w_product_id 0x0108
126#define keyspan_usa28_product_id 0x010f
127#define keyspan_usa28x_product_id 0x0110
128#define keyspan_usa28xa_product_id 0x0115
129#define keyspan_usa28xb_product_id 0x0110
130#define keyspan_usa28xg_product_id 0x0135
131#define keyspan_usa49w_product_id 0x010a
132#define keyspan_usa49wlc_product_id 0x012a
133#define keyspan_usa49wg_product_id 0x0131
134
135struct keyspan_device_details {
136 /* product ID value */
137 int product_id;
138
139 enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format;
140
141 /* Number of physical ports */
142 int num_ports;
143
144 /* 1 if endpoint flipping used on input, 0 if not */
145 int indat_endp_flip;
146
147 /* 1 if endpoint flipping used on output, 0 if not */
148 int outdat_endp_flip;
149
150 /*
151 * Table mapping input data endpoint IDs to physical port
152 * number and flip if used
153 */
154 int indat_endpoints[KEYSPAN_MAX_NUM_PORTS];
155
156 /* Same for output endpoints */
157 int outdat_endpoints[KEYSPAN_MAX_NUM_PORTS];
158
159 /* Input acknowledge endpoints */
160 int inack_endpoints[KEYSPAN_MAX_NUM_PORTS];
161
162 /* Output control endpoints */
163 int outcont_endpoints[KEYSPAN_MAX_NUM_PORTS];
164
165 /* Endpoint used for input status */
166 int instat_endpoint;
167
168 /* Endpoint used for input data 49WG only */
169 int indat_endpoint;
170
171 /* Endpoint used for global control functions */
172 int glocont_endpoint;
173
174 int (*calculate_baud_rate)(struct usb_serial_port *port,
175 u32 baud_rate, u32 baudclk,
176 u8 *rate_hi, u8 *rate_low, u8 *prescaler,
177 int portnum);
178 u32 baudclk;
179};
180
181/*
182 * Now for each device type we setup the device detail structure with the
183 * appropriate information (provided in Keyspan's documentation)
184 */
185
186static const struct keyspan_device_details usa18x_device_details = {
187 .product_id = keyspan_usa18x_product_id,
188 .msg_format = msg_usa26,
189 .num_ports = 1,
190 .indat_endp_flip = 0,
191 .outdat_endp_flip = 1,
192 .indat_endpoints = {0x81},
193 .outdat_endpoints = {0x01},
194 .inack_endpoints = {0x85},
195 .outcont_endpoints = {0x05},
196 .instat_endpoint = 0x87,
197 .indat_endpoint = -1,
198 .glocont_endpoint = 0x07,
199 .calculate_baud_rate = keyspan_usa19w_calc_baud,
200 .baudclk = KEYSPAN_USA18X_BAUDCLK,
201};
202
203static const struct keyspan_device_details usa19_device_details = {
204 .product_id = keyspan_usa19_product_id,
205 .msg_format = msg_usa28,
206 .num_ports = 1,
207 .indat_endp_flip = 1,
208 .outdat_endp_flip = 1,
209 .indat_endpoints = {0x81},
210 .outdat_endpoints = {0x01},
211 .inack_endpoints = {0x83},
212 .outcont_endpoints = {0x03},
213 .instat_endpoint = 0x84,
214 .indat_endpoint = -1,
215 .glocont_endpoint = -1,
216 .calculate_baud_rate = keyspan_usa19_calc_baud,
217 .baudclk = KEYSPAN_USA19_BAUDCLK,
218};
219
220static const struct keyspan_device_details usa19qi_device_details = {
221 .product_id = keyspan_usa19qi_product_id,
222 .msg_format = msg_usa28,
223 .num_ports = 1,
224 .indat_endp_flip = 1,
225 .outdat_endp_flip = 1,
226 .indat_endpoints = {0x81},
227 .outdat_endpoints = {0x01},
228 .inack_endpoints = {0x83},
229 .outcont_endpoints = {0x03},
230 .instat_endpoint = 0x84,
231 .indat_endpoint = -1,
232 .glocont_endpoint = -1,
233 .calculate_baud_rate = keyspan_usa28_calc_baud,
234 .baudclk = KEYSPAN_USA19_BAUDCLK,
235};
236
237static const struct keyspan_device_details mpr_device_details = {
238 .product_id = keyspan_mpr_product_id,
239 .msg_format = msg_usa28,
240 .num_ports = 1,
241 .indat_endp_flip = 1,
242 .outdat_endp_flip = 1,
243 .indat_endpoints = {0x81},
244 .outdat_endpoints = {0x01},
245 .inack_endpoints = {0x83},
246 .outcont_endpoints = {0x03},
247 .instat_endpoint = 0x84,
248 .indat_endpoint = -1,
249 .glocont_endpoint = -1,
250 .calculate_baud_rate = keyspan_usa28_calc_baud,
251 .baudclk = KEYSPAN_USA19_BAUDCLK,
252};
253
254static const struct keyspan_device_details usa19qw_device_details = {
255 .product_id = keyspan_usa19qw_product_id,
256 .msg_format = msg_usa26,
257 .num_ports = 1,
258 .indat_endp_flip = 0,
259 .outdat_endp_flip = 1,
260 .indat_endpoints = {0x81},
261 .outdat_endpoints = {0x01},
262 .inack_endpoints = {0x85},
263 .outcont_endpoints = {0x05},
264 .instat_endpoint = 0x87,
265 .indat_endpoint = -1,
266 .glocont_endpoint = 0x07,
267 .calculate_baud_rate = keyspan_usa19w_calc_baud,
268 .baudclk = KEYSPAN_USA19W_BAUDCLK,
269};
270
271static const struct keyspan_device_details usa19w_device_details = {
272 .product_id = keyspan_usa19w_product_id,
273 .msg_format = msg_usa26,
274 .num_ports = 1,
275 .indat_endp_flip = 0,
276 .outdat_endp_flip = 1,
277 .indat_endpoints = {0x81},
278 .outdat_endpoints = {0x01},
279 .inack_endpoints = {0x85},
280 .outcont_endpoints = {0x05},
281 .instat_endpoint = 0x87,
282 .indat_endpoint = -1,
283 .glocont_endpoint = 0x07,
284 .calculate_baud_rate = keyspan_usa19w_calc_baud,
285 .baudclk = KEYSPAN_USA19W_BAUDCLK,
286};
287
288static const struct keyspan_device_details usa19hs_device_details = {
289 .product_id = keyspan_usa19hs_product_id,
290 .msg_format = msg_usa90,
291 .num_ports = 1,
292 .indat_endp_flip = 0,
293 .outdat_endp_flip = 0,
294 .indat_endpoints = {0x81},
295 .outdat_endpoints = {0x01},
296 .inack_endpoints = {-1},
297 .outcont_endpoints = {0x02},
298 .instat_endpoint = 0x82,
299 .indat_endpoint = -1,
300 .glocont_endpoint = -1,
301 .calculate_baud_rate = keyspan_usa19hs_calc_baud,
302 .baudclk = KEYSPAN_USA19HS_BAUDCLK,
303};
304
305static const struct keyspan_device_details usa28_device_details = {
306 .product_id = keyspan_usa28_product_id,
307 .msg_format = msg_usa28,
308 .num_ports = 2,
309 .indat_endp_flip = 1,
310 .outdat_endp_flip = 1,
311 .indat_endpoints = {0x81, 0x83},
312 .outdat_endpoints = {0x01, 0x03},
313 .inack_endpoints = {0x85, 0x86},
314 .outcont_endpoints = {0x05, 0x06},
315 .instat_endpoint = 0x87,
316 .indat_endpoint = -1,
317 .glocont_endpoint = 0x07,
318 .calculate_baud_rate = keyspan_usa28_calc_baud,
319 .baudclk = KEYSPAN_USA28_BAUDCLK,
320};
321
322static const struct keyspan_device_details usa28x_device_details = {
323 .product_id = keyspan_usa28x_product_id,
324 .msg_format = msg_usa26,
325 .num_ports = 2,
326 .indat_endp_flip = 0,
327 .outdat_endp_flip = 1,
328 .indat_endpoints = {0x81, 0x83},
329 .outdat_endpoints = {0x01, 0x03},
330 .inack_endpoints = {0x85, 0x86},
331 .outcont_endpoints = {0x05, 0x06},
332 .instat_endpoint = 0x87,
333 .indat_endpoint = -1,
334 .glocont_endpoint = 0x07,
335 .calculate_baud_rate = keyspan_usa19w_calc_baud,
336 .baudclk = KEYSPAN_USA28X_BAUDCLK,
337};
338
339static const struct keyspan_device_details usa28xa_device_details = {
340 .product_id = keyspan_usa28xa_product_id,
341 .msg_format = msg_usa26,
342 .num_ports = 2,
343 .indat_endp_flip = 0,
344 .outdat_endp_flip = 1,
345 .indat_endpoints = {0x81, 0x83},
346 .outdat_endpoints = {0x01, 0x03},
347 .inack_endpoints = {0x85, 0x86},
348 .outcont_endpoints = {0x05, 0x06},
349 .instat_endpoint = 0x87,
350 .indat_endpoint = -1,
351 .glocont_endpoint = 0x07,
352 .calculate_baud_rate = keyspan_usa19w_calc_baud,
353 .baudclk = KEYSPAN_USA28X_BAUDCLK,
354};
355
356static const struct keyspan_device_details usa28xg_device_details = {
357 .product_id = keyspan_usa28xg_product_id,
358 .msg_format = msg_usa67,
359 .num_ports = 2,
360 .indat_endp_flip = 0,
361 .outdat_endp_flip = 0,
362 .indat_endpoints = {0x84, 0x88},
363 .outdat_endpoints = {0x02, 0x06},
364 .inack_endpoints = {-1, -1},
365 .outcont_endpoints = {-1, -1},
366 .instat_endpoint = 0x81,
367 .indat_endpoint = -1,
368 .glocont_endpoint = 0x01,
369 .calculate_baud_rate = keyspan_usa19w_calc_baud,
370 .baudclk = KEYSPAN_USA28X_BAUDCLK,
371};
372/*
373 * We don't need a separate entry for the usa28xb as it appears as a 28x
374 * anyway.
375 */
376
377static const struct keyspan_device_details usa49w_device_details = {
378 .product_id = keyspan_usa49w_product_id,
379 .msg_format = msg_usa49,
380 .num_ports = 4,
381 .indat_endp_flip = 0,
382 .outdat_endp_flip = 0,
383 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
384 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
385 .inack_endpoints = {-1, -1, -1, -1},
386 .outcont_endpoints = {-1, -1, -1, -1},
387 .instat_endpoint = 0x87,
388 .indat_endpoint = -1,
389 .glocont_endpoint = 0x07,
390 .calculate_baud_rate = keyspan_usa19w_calc_baud,
391 .baudclk = KEYSPAN_USA49W_BAUDCLK,
392};
393
394static const struct keyspan_device_details usa49wlc_device_details = {
395 .product_id = keyspan_usa49wlc_product_id,
396 .msg_format = msg_usa49,
397 .num_ports = 4,
398 .indat_endp_flip = 0,
399 .outdat_endp_flip = 0,
400 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
401 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
402 .inack_endpoints = {-1, -1, -1, -1},
403 .outcont_endpoints = {-1, -1, -1, -1},
404 .instat_endpoint = 0x87,
405 .indat_endpoint = -1,
406 .glocont_endpoint = 0x07,
407 .calculate_baud_rate = keyspan_usa19w_calc_baud,
408 .baudclk = KEYSPAN_USA19W_BAUDCLK,
409};
410
411static const struct keyspan_device_details usa49wg_device_details = {
412 .product_id = keyspan_usa49wg_product_id,
413 .msg_format = msg_usa49,
414 .num_ports = 4,
415 .indat_endp_flip = 0,
416 .outdat_endp_flip = 0,
417 .indat_endpoints = {-1, -1, -1, -1}, /* single 'global' data in EP */
418 .outdat_endpoints = {0x01, 0x02, 0x04, 0x06},
419 .inack_endpoints = {-1, -1, -1, -1},
420 .outcont_endpoints = {-1, -1, -1, -1},
421 .instat_endpoint = 0x81,
422 .indat_endpoint = 0x88,
423 .glocont_endpoint = 0x00, /* uses control EP */
424 .calculate_baud_rate = keyspan_usa19w_calc_baud,
425 .baudclk = KEYSPAN_USA19W_BAUDCLK,
426};
427
428static const struct keyspan_device_details *keyspan_devices[] = {
429 &usa18x_device_details,
430 &usa19_device_details,
431 &usa19qi_device_details,
432 &mpr_device_details,
433 &usa19qw_device_details,
434 &usa19w_device_details,
435 &usa19hs_device_details,
436 &usa28_device_details,
437 &usa28x_device_details,
438 &usa28xa_device_details,
439 &usa28xg_device_details,
440 /* 28xb not required as it renumerates as a 28x */
441 &usa49w_device_details,
442 &usa49wlc_device_details,
443 &usa49wg_device_details,
444 NULL,
445};
446
447static const struct usb_device_id keyspan_ids_combined[] = {
448 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
449 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
450 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
451 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
452 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
453 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
454 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
455 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
456 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
457 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
458 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
459 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
460 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
461 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
462 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
463 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
464 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
465 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
466 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
467 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
468 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
469 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
470 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
471 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)},
472 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
473 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
474 { } /* Terminating entry */
475};
476
477MODULE_DEVICE_TABLE(usb, keyspan_ids_combined);
478
479/* usb_device_id table for the pre-firmware download keyspan devices */
480static const struct usb_device_id keyspan_pre_ids[] = {
481 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
482 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
483 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
484 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
485 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
486 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
487 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
488 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
489 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
490 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
491 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
492 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
493 { } /* Terminating entry */
494};
495
496static const struct usb_device_id keyspan_1port_ids[] = {
497 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
498 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
499 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
500 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
501 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
502 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
503 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
504 { } /* Terminating entry */
505};
506
507static const struct usb_device_id keyspan_2port_ids[] = {
508 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
509 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
510 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
511 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
512 { } /* Terminating entry */
513};
514
515static const struct usb_device_id keyspan_4port_ids[] = {
516 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) },
517 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
518 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
519 { } /* Terminating entry */
520};
521
522#define INSTAT_BUFLEN 32
523#define GLOCONT_BUFLEN 64
524#define INDAT49W_BUFLEN 512
525#define IN_BUFLEN 64
526#define OUT_BUFLEN 64
527#define INACK_BUFLEN 1
528#define OUTCONT_BUFLEN 64
529
530 /* Per device and per port private data */
531struct keyspan_serial_private {
532 const struct keyspan_device_details *device_details;
533
534 struct urb *instat_urb;
535 char *instat_buf;
536
537 /* added to support 49wg, where data from all 4 ports comes in
538 on 1 EP and high-speed supported */
539 struct urb *indat_urb;
540 char *indat_buf;
541
542 /* XXX this one probably will need a lock */
543 struct urb *glocont_urb;
544 char *glocont_buf;
545 char *ctrl_buf; /* for EP0 control message */
546};
547
548struct keyspan_port_private {
549 /* Keep track of which input & output endpoints to use */
550 int in_flip;
551 int out_flip;
552
553 /* Keep duplicate of device details in each port
554 structure as well - simplifies some of the
555 callback functions etc. */
556 const struct keyspan_device_details *device_details;
557
558 /* Input endpoints and buffer for this port */
559 struct urb *in_urbs[2];
560 char *in_buffer[2];
561 /* Output endpoints and buffer for this port */
562 struct urb *out_urbs[2];
563 char *out_buffer[2];
564
565 /* Input ack endpoint */
566 struct urb *inack_urb;
567 char *inack_buffer;
568
569 /* Output control endpoint */
570 struct urb *outcont_urb;
571 char *outcont_buffer;
572
573 /* Settings for the port */
574 int baud;
575 int old_baud;
576 unsigned int cflag;
577 unsigned int old_cflag;
578 enum {flow_none, flow_cts, flow_xon} flow_control;
579 int rts_state; /* Handshaking pins (outputs) */
580 int dtr_state;
581 int cts_state; /* Handshaking pins (inputs) */
582 int dsr_state;
583 int dcd_state;
584 int ri_state;
585 int break_on;
586
587 unsigned long tx_start_time[2];
588 int resend_cont; /* need to resend control packet */
589};
590
591/* Include Keyspan message headers. All current Keyspan Adapters
592 make use of one of five message formats which are referred
593 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and
594 within this driver. */
595#include "keyspan_usa26msg.h"
596#include "keyspan_usa28msg.h"
597#include "keyspan_usa49msg.h"
598#include "keyspan_usa90msg.h"
599#include "keyspan_usa67msg.h"
600
601
602static int keyspan_break_ctl(struct tty_struct *tty, int break_state)
603{
604 struct usb_serial_port *port = tty->driver_data;
605 struct keyspan_port_private *p_priv;
606
607 p_priv = usb_get_serial_port_data(port);
608
609 if (break_state == -1)
610 p_priv->break_on = 1;
611 else
612 p_priv->break_on = 0;
613
614 /* FIXME: return errors */
615 keyspan_send_setup(port, 0);
616
617 return 0;
618}
619
620
621static void keyspan_set_termios(struct tty_struct *tty,
622 struct usb_serial_port *port,
623 const struct ktermios *old_termios)
624{
625 int baud_rate, device_port;
626 struct keyspan_port_private *p_priv;
627 const struct keyspan_device_details *d_details;
628 unsigned int cflag;
629
630 p_priv = usb_get_serial_port_data(port);
631 d_details = p_priv->device_details;
632 cflag = tty->termios.c_cflag;
633 device_port = port->port_number;
634
635 /* Baud rate calculation takes baud rate as an integer
636 so other rates can be generated if desired. */
637 baud_rate = tty_get_baud_rate(tty);
638 /* If no match or invalid, don't change */
639 if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
640 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
641 /* FIXME - more to do here to ensure rate changes cleanly */
642 /* FIXME - calculate exact rate from divisor ? */
643 p_priv->baud = baud_rate;
644 } else
645 baud_rate = tty_termios_baud_rate(old_termios);
646
647 tty_encode_baud_rate(tty, baud_rate, baud_rate);
648 /* set CTS/RTS handshake etc. */
649 p_priv->cflag = cflag;
650 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
651
652 /* Mark/Space not supported */
653 tty->termios.c_cflag &= ~CMSPAR;
654
655 keyspan_send_setup(port, 0);
656}
657
658static int keyspan_tiocmget(struct tty_struct *tty)
659{
660 struct usb_serial_port *port = tty->driver_data;
661 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
662 unsigned int value;
663
664 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
665 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
666 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
667 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
668 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
669 ((p_priv->ri_state) ? TIOCM_RNG : 0);
670
671 return value;
672}
673
674static int keyspan_tiocmset(struct tty_struct *tty,
675 unsigned int set, unsigned int clear)
676{
677 struct usb_serial_port *port = tty->driver_data;
678 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
679
680 if (set & TIOCM_RTS)
681 p_priv->rts_state = 1;
682 if (set & TIOCM_DTR)
683 p_priv->dtr_state = 1;
684 if (clear & TIOCM_RTS)
685 p_priv->rts_state = 0;
686 if (clear & TIOCM_DTR)
687 p_priv->dtr_state = 0;
688 keyspan_send_setup(port, 0);
689 return 0;
690}
691
692/* Write function is similar for the four protocols used
693 with only a minor change for usa90 (usa19hs) required */
694static int keyspan_write(struct tty_struct *tty,
695 struct usb_serial_port *port, const unsigned char *buf, int count)
696{
697 struct keyspan_port_private *p_priv;
698 const struct keyspan_device_details *d_details;
699 int flip;
700 int left, todo;
701 struct urb *this_urb;
702 int err, maxDataLen, dataOffset;
703
704 p_priv = usb_get_serial_port_data(port);
705 d_details = p_priv->device_details;
706
707 if (d_details->msg_format == msg_usa90) {
708 maxDataLen = 64;
709 dataOffset = 0;
710 } else {
711 maxDataLen = 63;
712 dataOffset = 1;
713 }
714
715 dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count,
716 p_priv->out_flip);
717
718 for (left = count; left > 0; left -= todo) {
719 todo = left;
720 if (todo > maxDataLen)
721 todo = maxDataLen;
722
723 flip = p_priv->out_flip;
724
725 /* Check we have a valid urb/endpoint before we use it... */
726 this_urb = p_priv->out_urbs[flip];
727 if (this_urb == NULL) {
728 /* no bulk out, so return 0 bytes written */
729 dev_dbg(&port->dev, "%s - no output urb :(\n", __func__);
730 return count;
731 }
732
733 dev_dbg(&port->dev, "%s - endpoint %x flip %d\n",
734 __func__, usb_pipeendpoint(this_urb->pipe), flip);
735
736 if (this_urb->status == -EINPROGRESS) {
737 if (time_before(jiffies,
738 p_priv->tx_start_time[flip] + 10 * HZ))
739 break;
740 usb_unlink_urb(this_urb);
741 break;
742 }
743
744 /* First byte in buffer is "last flag" (except for usa19hx)
745 - unused so for now so set to zero */
746 ((char *)this_urb->transfer_buffer)[0] = 0;
747
748 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
749 buf += todo;
750
751 /* send the data out the bulk port */
752 this_urb->transfer_buffer_length = todo + dataOffset;
753
754 err = usb_submit_urb(this_urb, GFP_ATOMIC);
755 if (err != 0)
756 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err);
757 p_priv->tx_start_time[flip] = jiffies;
758
759 /* Flip for next time if usa26 or usa28 interface
760 (not used on usa49) */
761 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
762 }
763
764 return count - left;
765}
766
767static void usa26_indat_callback(struct urb *urb)
768{
769 int i, err;
770 int endpoint;
771 struct usb_serial_port *port;
772 unsigned char *data = urb->transfer_buffer;
773 int status = urb->status;
774
775 endpoint = usb_pipeendpoint(urb->pipe);
776
777 if (status) {
778 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
779 __func__, status, endpoint);
780 return;
781 }
782
783 port = urb->context;
784 if (urb->actual_length) {
785 /* 0x80 bit is error flag */
786 if ((data[0] & 0x80) == 0) {
787 /* no errors on individual bytes, only
788 possible overrun err */
789 if (data[0] & RXERROR_OVERRUN) {
790 tty_insert_flip_char(&port->port, 0,
791 TTY_OVERRUN);
792 }
793 for (i = 1; i < urb->actual_length ; ++i)
794 tty_insert_flip_char(&port->port, data[i],
795 TTY_NORMAL);
796 } else {
797 /* some bytes had errors, every byte has status */
798 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
799 for (i = 0; i + 1 < urb->actual_length; i += 2) {
800 int stat = data[i];
801 int flag = TTY_NORMAL;
802
803 if (stat & RXERROR_OVERRUN) {
804 tty_insert_flip_char(&port->port, 0,
805 TTY_OVERRUN);
806 }
807 /* XXX should handle break (0x10) */
808 if (stat & RXERROR_PARITY)
809 flag = TTY_PARITY;
810 else if (stat & RXERROR_FRAMING)
811 flag = TTY_FRAME;
812
813 tty_insert_flip_char(&port->port, data[i+1],
814 flag);
815 }
816 }
817 tty_flip_buffer_push(&port->port);
818 }
819
820 /* Resubmit urb so we continue receiving */
821 err = usb_submit_urb(urb, GFP_ATOMIC);
822 if (err != 0)
823 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
824}
825
826/* Outdat handling is common for all devices */
827static void usa2x_outdat_callback(struct urb *urb)
828{
829 struct usb_serial_port *port;
830 struct keyspan_port_private *p_priv;
831
832 port = urb->context;
833 p_priv = usb_get_serial_port_data(port);
834 dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]);
835
836 usb_serial_port_softint(port);
837}
838
839static void usa26_inack_callback(struct urb *urb)
840{
841}
842
843static void usa26_outcont_callback(struct urb *urb)
844{
845 struct usb_serial_port *port;
846 struct keyspan_port_private *p_priv;
847
848 port = urb->context;
849 p_priv = usb_get_serial_port_data(port);
850
851 if (p_priv->resend_cont) {
852 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
853 keyspan_usa26_send_setup(port->serial, port,
854 p_priv->resend_cont - 1);
855 }
856}
857
858static void usa26_instat_callback(struct urb *urb)
859{
860 unsigned char *data = urb->transfer_buffer;
861 struct keyspan_usa26_portStatusMessage *msg;
862 struct usb_serial *serial;
863 struct usb_serial_port *port;
864 struct keyspan_port_private *p_priv;
865 int old_dcd_state, err;
866 int status = urb->status;
867
868 serial = urb->context;
869
870 if (status) {
871 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
872 __func__, status);
873 return;
874 }
875 if (urb->actual_length != 9) {
876 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
877 goto exit;
878 }
879
880 msg = (struct keyspan_usa26_portStatusMessage *)data;
881
882 /* Check port number from message and retrieve private data */
883 if (msg->port >= serial->num_ports) {
884 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
885 goto exit;
886 }
887 port = serial->port[msg->port];
888 p_priv = usb_get_serial_port_data(port);
889 if (!p_priv)
890 goto resubmit;
891
892 /* Update handshaking pin state information */
893 old_dcd_state = p_priv->dcd_state;
894 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
895 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
896 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
897 p_priv->ri_state = ((msg->ri) ? 1 : 0);
898
899 if (old_dcd_state != p_priv->dcd_state)
900 tty_port_tty_hangup(&port->port, true);
901resubmit:
902 /* Resubmit urb so we continue receiving */
903 err = usb_submit_urb(urb, GFP_ATOMIC);
904 if (err != 0)
905 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
906exit: ;
907}
908
909static void usa26_glocont_callback(struct urb *urb)
910{
911}
912
913
914static void usa28_indat_callback(struct urb *urb)
915{
916 int err;
917 struct usb_serial_port *port;
918 unsigned char *data;
919 struct keyspan_port_private *p_priv;
920 int status = urb->status;
921
922 port = urb->context;
923 p_priv = usb_get_serial_port_data(port);
924
925 if (urb != p_priv->in_urbs[p_priv->in_flip])
926 return;
927
928 do {
929 if (status) {
930 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
931 __func__, status, usb_pipeendpoint(urb->pipe));
932 return;
933 }
934
935 port = urb->context;
936 p_priv = usb_get_serial_port_data(port);
937 data = urb->transfer_buffer;
938
939 if (urb->actual_length) {
940 tty_insert_flip_string(&port->port, data,
941 urb->actual_length);
942 tty_flip_buffer_push(&port->port);
943 }
944
945 /* Resubmit urb so we continue receiving */
946 err = usb_submit_urb(urb, GFP_ATOMIC);
947 if (err != 0)
948 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
949 __func__, err);
950 p_priv->in_flip ^= 1;
951
952 urb = p_priv->in_urbs[p_priv->in_flip];
953 } while (urb->status != -EINPROGRESS);
954}
955
956static void usa28_inack_callback(struct urb *urb)
957{
958}
959
960static void usa28_outcont_callback(struct urb *urb)
961{
962 struct usb_serial_port *port;
963 struct keyspan_port_private *p_priv;
964
965 port = urb->context;
966 p_priv = usb_get_serial_port_data(port);
967
968 if (p_priv->resend_cont) {
969 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
970 keyspan_usa28_send_setup(port->serial, port,
971 p_priv->resend_cont - 1);
972 }
973}
974
975static void usa28_instat_callback(struct urb *urb)
976{
977 int err;
978 unsigned char *data = urb->transfer_buffer;
979 struct keyspan_usa28_portStatusMessage *msg;
980 struct usb_serial *serial;
981 struct usb_serial_port *port;
982 struct keyspan_port_private *p_priv;
983 int old_dcd_state;
984 int status = urb->status;
985
986 serial = urb->context;
987
988 if (status) {
989 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
990 __func__, status);
991 return;
992 }
993
994 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
995 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
996 goto exit;
997 }
998
999 msg = (struct keyspan_usa28_portStatusMessage *)data;
1000
1001 /* Check port number from message and retrieve private data */
1002 if (msg->port >= serial->num_ports) {
1003 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1004 goto exit;
1005 }
1006 port = serial->port[msg->port];
1007 p_priv = usb_get_serial_port_data(port);
1008 if (!p_priv)
1009 goto resubmit;
1010
1011 /* Update handshaking pin state information */
1012 old_dcd_state = p_priv->dcd_state;
1013 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1014 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1015 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1016 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1017
1018 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1019 tty_port_tty_hangup(&port->port, true);
1020resubmit:
1021 /* Resubmit urb so we continue receiving */
1022 err = usb_submit_urb(urb, GFP_ATOMIC);
1023 if (err != 0)
1024 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1025exit: ;
1026}
1027
1028static void usa28_glocont_callback(struct urb *urb)
1029{
1030}
1031
1032
1033static void usa49_glocont_callback(struct urb *urb)
1034{
1035 struct usb_serial *serial;
1036 struct usb_serial_port *port;
1037 struct keyspan_port_private *p_priv;
1038 int i;
1039
1040 serial = urb->context;
1041 for (i = 0; i < serial->num_ports; ++i) {
1042 port = serial->port[i];
1043 p_priv = usb_get_serial_port_data(port);
1044 if (!p_priv)
1045 continue;
1046
1047 if (p_priv->resend_cont) {
1048 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1049 keyspan_usa49_send_setup(serial, port,
1050 p_priv->resend_cont - 1);
1051 break;
1052 }
1053 }
1054}
1055
1056 /* This is actually called glostat in the Keyspan
1057 doco */
1058static void usa49_instat_callback(struct urb *urb)
1059{
1060 int err;
1061 unsigned char *data = urb->transfer_buffer;
1062 struct keyspan_usa49_portStatusMessage *msg;
1063 struct usb_serial *serial;
1064 struct usb_serial_port *port;
1065 struct keyspan_port_private *p_priv;
1066 int old_dcd_state;
1067 int status = urb->status;
1068
1069 serial = urb->context;
1070
1071 if (status) {
1072 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1073 __func__, status);
1074 return;
1075 }
1076
1077 if (urb->actual_length !=
1078 sizeof(struct keyspan_usa49_portStatusMessage)) {
1079 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1080 goto exit;
1081 }
1082
1083 msg = (struct keyspan_usa49_portStatusMessage *)data;
1084
1085 /* Check port number from message and retrieve private data */
1086 if (msg->portNumber >= serial->num_ports) {
1087 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1088 __func__, msg->portNumber);
1089 goto exit;
1090 }
1091 port = serial->port[msg->portNumber];
1092 p_priv = usb_get_serial_port_data(port);
1093 if (!p_priv)
1094 goto resubmit;
1095
1096 /* Update handshaking pin state information */
1097 old_dcd_state = p_priv->dcd_state;
1098 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1099 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1100 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1101 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1102
1103 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1104 tty_port_tty_hangup(&port->port, true);
1105resubmit:
1106 /* Resubmit urb so we continue receiving */
1107 err = usb_submit_urb(urb, GFP_ATOMIC);
1108 if (err != 0)
1109 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1110exit: ;
1111}
1112
1113static void usa49_inack_callback(struct urb *urb)
1114{
1115}
1116
1117static void usa49_indat_callback(struct urb *urb)
1118{
1119 int i, err;
1120 int endpoint;
1121 struct usb_serial_port *port;
1122 unsigned char *data = urb->transfer_buffer;
1123 int status = urb->status;
1124
1125 endpoint = usb_pipeendpoint(urb->pipe);
1126
1127 if (status) {
1128 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1129 __func__, status, endpoint);
1130 return;
1131 }
1132
1133 port = urb->context;
1134 if (urb->actual_length) {
1135 /* 0x80 bit is error flag */
1136 if ((data[0] & 0x80) == 0) {
1137 /* no error on any byte */
1138 tty_insert_flip_string(&port->port, data + 1,
1139 urb->actual_length - 1);
1140 } else {
1141 /* some bytes had errors, every byte has status */
1142 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1143 int stat = data[i];
1144 int flag = TTY_NORMAL;
1145
1146 if (stat & RXERROR_OVERRUN) {
1147 tty_insert_flip_char(&port->port, 0,
1148 TTY_OVERRUN);
1149 }
1150 /* XXX should handle break (0x10) */
1151 if (stat & RXERROR_PARITY)
1152 flag = TTY_PARITY;
1153 else if (stat & RXERROR_FRAMING)
1154 flag = TTY_FRAME;
1155
1156 tty_insert_flip_char(&port->port, data[i+1],
1157 flag);
1158 }
1159 }
1160 tty_flip_buffer_push(&port->port);
1161 }
1162
1163 /* Resubmit urb so we continue receiving */
1164 err = usb_submit_urb(urb, GFP_ATOMIC);
1165 if (err != 0)
1166 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1167}
1168
1169static void usa49wg_indat_callback(struct urb *urb)
1170{
1171 int i, len, x, err;
1172 struct usb_serial *serial;
1173 struct usb_serial_port *port;
1174 unsigned char *data = urb->transfer_buffer;
1175 int status = urb->status;
1176
1177 serial = urb->context;
1178
1179 if (status) {
1180 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1181 __func__, status);
1182 return;
1183 }
1184
1185 /* inbound data is in the form P#, len, status, data */
1186 i = 0;
1187 len = 0;
1188
1189 while (i < urb->actual_length) {
1190
1191 /* Check port number from message */
1192 if (data[i] >= serial->num_ports) {
1193 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1194 __func__, data[i]);
1195 return;
1196 }
1197 port = serial->port[data[i++]];
1198 len = data[i++];
1199
1200 /* 0x80 bit is error flag */
1201 if ((data[i] & 0x80) == 0) {
1202 /* no error on any byte */
1203 i++;
1204 for (x = 1; x < len && i < urb->actual_length; ++x)
1205 tty_insert_flip_char(&port->port,
1206 data[i++], 0);
1207 } else {
1208 /*
1209 * some bytes had errors, every byte has status
1210 */
1211 for (x = 0; x + 1 < len &&
1212 i + 1 < urb->actual_length; x += 2) {
1213 int stat = data[i];
1214 int flag = TTY_NORMAL;
1215
1216 if (stat & RXERROR_OVERRUN) {
1217 tty_insert_flip_char(&port->port, 0,
1218 TTY_OVERRUN);
1219 }
1220 /* XXX should handle break (0x10) */
1221 if (stat & RXERROR_PARITY)
1222 flag = TTY_PARITY;
1223 else if (stat & RXERROR_FRAMING)
1224 flag = TTY_FRAME;
1225
1226 tty_insert_flip_char(&port->port, data[i+1],
1227 flag);
1228 i += 2;
1229 }
1230 }
1231 tty_flip_buffer_push(&port->port);
1232 }
1233
1234 /* Resubmit urb so we continue receiving */
1235 err = usb_submit_urb(urb, GFP_ATOMIC);
1236 if (err != 0)
1237 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1238}
1239
1240/* not used, usa-49 doesn't have per-port control endpoints */
1241static void usa49_outcont_callback(struct urb *urb)
1242{
1243}
1244
1245static void usa90_indat_callback(struct urb *urb)
1246{
1247 int i, err;
1248 int endpoint;
1249 struct usb_serial_port *port;
1250 struct keyspan_port_private *p_priv;
1251 unsigned char *data = urb->transfer_buffer;
1252 int status = urb->status;
1253
1254 endpoint = usb_pipeendpoint(urb->pipe);
1255
1256 if (status) {
1257 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1258 __func__, status, endpoint);
1259 return;
1260 }
1261
1262 port = urb->context;
1263 p_priv = usb_get_serial_port_data(port);
1264
1265 if (urb->actual_length) {
1266 /* if current mode is DMA, looks like usa28 format
1267 otherwise looks like usa26 data format */
1268
1269 if (p_priv->baud > 57600)
1270 tty_insert_flip_string(&port->port, data,
1271 urb->actual_length);
1272 else {
1273 /* 0x80 bit is error flag */
1274 if ((data[0] & 0x80) == 0) {
1275 /* no errors on individual bytes, only
1276 possible overrun err*/
1277 if (data[0] & RXERROR_OVERRUN) {
1278 tty_insert_flip_char(&port->port, 0,
1279 TTY_OVERRUN);
1280 }
1281 for (i = 1; i < urb->actual_length ; ++i)
1282 tty_insert_flip_char(&port->port,
1283 data[i], TTY_NORMAL);
1284 } else {
1285 /* some bytes had errors, every byte has status */
1286 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1287 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1288 int stat = data[i];
1289 int flag = TTY_NORMAL;
1290
1291 if (stat & RXERROR_OVERRUN) {
1292 tty_insert_flip_char(
1293 &port->port, 0,
1294 TTY_OVERRUN);
1295 }
1296 /* XXX should handle break (0x10) */
1297 if (stat & RXERROR_PARITY)
1298 flag = TTY_PARITY;
1299 else if (stat & RXERROR_FRAMING)
1300 flag = TTY_FRAME;
1301
1302 tty_insert_flip_char(&port->port,
1303 data[i+1], flag);
1304 }
1305 }
1306 }
1307 tty_flip_buffer_push(&port->port);
1308 }
1309
1310 /* Resubmit urb so we continue receiving */
1311 err = usb_submit_urb(urb, GFP_ATOMIC);
1312 if (err != 0)
1313 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1314}
1315
1316
1317static void usa90_instat_callback(struct urb *urb)
1318{
1319 unsigned char *data = urb->transfer_buffer;
1320 struct keyspan_usa90_portStatusMessage *msg;
1321 struct usb_serial *serial;
1322 struct usb_serial_port *port;
1323 struct keyspan_port_private *p_priv;
1324 int old_dcd_state, err;
1325 int status = urb->status;
1326
1327 serial = urb->context;
1328
1329 if (status) {
1330 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1331 __func__, status);
1332 return;
1333 }
1334 if (urb->actual_length < 14) {
1335 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1336 goto exit;
1337 }
1338
1339 msg = (struct keyspan_usa90_portStatusMessage *)data;
1340
1341 /* Now do something useful with the data */
1342
1343 port = serial->port[0];
1344 p_priv = usb_get_serial_port_data(port);
1345 if (!p_priv)
1346 goto resubmit;
1347
1348 /* Update handshaking pin state information */
1349 old_dcd_state = p_priv->dcd_state;
1350 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1351 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1352 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1353 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1354
1355 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1356 tty_port_tty_hangup(&port->port, true);
1357resubmit:
1358 /* Resubmit urb so we continue receiving */
1359 err = usb_submit_urb(urb, GFP_ATOMIC);
1360 if (err != 0)
1361 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1362exit:
1363 ;
1364}
1365
1366static void usa90_outcont_callback(struct urb *urb)
1367{
1368 struct usb_serial_port *port;
1369 struct keyspan_port_private *p_priv;
1370
1371 port = urb->context;
1372 p_priv = usb_get_serial_port_data(port);
1373
1374 if (p_priv->resend_cont) {
1375 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
1376 keyspan_usa90_send_setup(port->serial, port,
1377 p_priv->resend_cont - 1);
1378 }
1379}
1380
1381/* Status messages from the 28xg */
1382static void usa67_instat_callback(struct urb *urb)
1383{
1384 int err;
1385 unsigned char *data = urb->transfer_buffer;
1386 struct keyspan_usa67_portStatusMessage *msg;
1387 struct usb_serial *serial;
1388 struct usb_serial_port *port;
1389 struct keyspan_port_private *p_priv;
1390 int old_dcd_state;
1391 int status = urb->status;
1392
1393 serial = urb->context;
1394
1395 if (status) {
1396 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1397 __func__, status);
1398 return;
1399 }
1400
1401 if (urb->actual_length !=
1402 sizeof(struct keyspan_usa67_portStatusMessage)) {
1403 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1404 return;
1405 }
1406
1407
1408 /* Now do something useful with the data */
1409 msg = (struct keyspan_usa67_portStatusMessage *)data;
1410
1411 /* Check port number from message and retrieve private data */
1412 if (msg->port >= serial->num_ports) {
1413 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1414 return;
1415 }
1416
1417 port = serial->port[msg->port];
1418 p_priv = usb_get_serial_port_data(port);
1419 if (!p_priv)
1420 goto resubmit;
1421
1422 /* Update handshaking pin state information */
1423 old_dcd_state = p_priv->dcd_state;
1424 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1425 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1426
1427 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1428 tty_port_tty_hangup(&port->port, true);
1429resubmit:
1430 /* Resubmit urb so we continue receiving */
1431 err = usb_submit_urb(urb, GFP_ATOMIC);
1432 if (err != 0)
1433 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1434}
1435
1436static void usa67_glocont_callback(struct urb *urb)
1437{
1438 struct usb_serial *serial;
1439 struct usb_serial_port *port;
1440 struct keyspan_port_private *p_priv;
1441 int i;
1442
1443 serial = urb->context;
1444 for (i = 0; i < serial->num_ports; ++i) {
1445 port = serial->port[i];
1446 p_priv = usb_get_serial_port_data(port);
1447 if (!p_priv)
1448 continue;
1449
1450 if (p_priv->resend_cont) {
1451 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1452 keyspan_usa67_send_setup(serial, port,
1453 p_priv->resend_cont - 1);
1454 break;
1455 }
1456 }
1457}
1458
1459static unsigned int keyspan_write_room(struct tty_struct *tty)
1460{
1461 struct usb_serial_port *port = tty->driver_data;
1462 struct keyspan_port_private *p_priv;
1463 const struct keyspan_device_details *d_details;
1464 int flip;
1465 unsigned int data_len;
1466 struct urb *this_urb;
1467
1468 p_priv = usb_get_serial_port_data(port);
1469 d_details = p_priv->device_details;
1470
1471 /* FIXME: locking */
1472 if (d_details->msg_format == msg_usa90)
1473 data_len = 64;
1474 else
1475 data_len = 63;
1476
1477 flip = p_priv->out_flip;
1478
1479 /* Check both endpoints to see if any are available. */
1480 this_urb = p_priv->out_urbs[flip];
1481 if (this_urb != NULL) {
1482 if (this_urb->status != -EINPROGRESS)
1483 return data_len;
1484 flip = (flip + 1) & d_details->outdat_endp_flip;
1485 this_urb = p_priv->out_urbs[flip];
1486 if (this_urb != NULL) {
1487 if (this_urb->status != -EINPROGRESS)
1488 return data_len;
1489 }
1490 }
1491 return 0;
1492}
1493
1494
1495static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1496{
1497 struct keyspan_port_private *p_priv;
1498 const struct keyspan_device_details *d_details;
1499 int i, err;
1500 int baud_rate, device_port;
1501 struct urb *urb;
1502 unsigned int cflag = 0;
1503
1504 p_priv = usb_get_serial_port_data(port);
1505 d_details = p_priv->device_details;
1506
1507 /* Set some sane defaults */
1508 p_priv->rts_state = 1;
1509 p_priv->dtr_state = 1;
1510 p_priv->baud = 9600;
1511
1512 /* force baud and lcr to be set on open */
1513 p_priv->old_baud = 0;
1514 p_priv->old_cflag = 0;
1515
1516 p_priv->out_flip = 0;
1517 p_priv->in_flip = 0;
1518
1519 /* Reset low level data toggle and start reading from endpoints */
1520 for (i = 0; i < 2; i++) {
1521 urb = p_priv->in_urbs[i];
1522 if (urb == NULL)
1523 continue;
1524
1525 /* make sure endpoint data toggle is synchronized
1526 with the device */
1527 usb_clear_halt(urb->dev, urb->pipe);
1528 err = usb_submit_urb(urb, GFP_KERNEL);
1529 if (err != 0)
1530 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
1531 }
1532
1533 /* Reset low level data toggle on out endpoints */
1534 for (i = 0; i < 2; i++) {
1535 urb = p_priv->out_urbs[i];
1536 if (urb == NULL)
1537 continue;
1538 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1539 usb_pipeout(urb->pipe), 0); */
1540 }
1541
1542 /* get the terminal config for the setup message now so we don't
1543 * need to send 2 of them */
1544
1545 device_port = port->port_number;
1546 if (tty) {
1547 cflag = tty->termios.c_cflag;
1548 /* Baud rate calculation takes baud rate as an integer
1549 so other rates can be generated if desired. */
1550 baud_rate = tty_get_baud_rate(tty);
1551 /* If no match or invalid, leave as default */
1552 if (baud_rate >= 0
1553 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
1554 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1555 p_priv->baud = baud_rate;
1556 }
1557 }
1558 /* set CTS/RTS handshake etc. */
1559 p_priv->cflag = cflag;
1560 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
1561
1562 keyspan_send_setup(port, 1);
1563 /* mdelay(100); */
1564 /* keyspan_set_termios(port, NULL); */
1565
1566 return 0;
1567}
1568
1569static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1570{
1571 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1572
1573 p_priv->rts_state = on;
1574 p_priv->dtr_state = on;
1575 keyspan_send_setup(port, 0);
1576}
1577
1578static void keyspan_close(struct usb_serial_port *port)
1579{
1580 int i;
1581 struct keyspan_port_private *p_priv;
1582
1583 p_priv = usb_get_serial_port_data(port);
1584
1585 p_priv->rts_state = 0;
1586 p_priv->dtr_state = 0;
1587
1588 keyspan_send_setup(port, 2);
1589 /* pilot-xfer seems to work best with this delay */
1590 mdelay(100);
1591
1592 p_priv->out_flip = 0;
1593 p_priv->in_flip = 0;
1594
1595 usb_kill_urb(p_priv->inack_urb);
1596 for (i = 0; i < 2; i++) {
1597 usb_kill_urb(p_priv->in_urbs[i]);
1598 usb_kill_urb(p_priv->out_urbs[i]);
1599 }
1600}
1601
1602/* download the firmware to a pre-renumeration device */
1603static int keyspan_fake_startup(struct usb_serial *serial)
1604{
1605 char *fw_name;
1606
1607 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
1608 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1609 le16_to_cpu(serial->dev->descriptor.idProduct));
1610
1611 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1612 != 0x8000) {
1613 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n");
1614 return 1;
1615 }
1616
1617 /* Select firmware image on the basis of idProduct */
1618 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1619 case keyspan_usa28_pre_product_id:
1620 fw_name = "keyspan/usa28.fw";
1621 break;
1622
1623 case keyspan_usa28x_pre_product_id:
1624 fw_name = "keyspan/usa28x.fw";
1625 break;
1626
1627 case keyspan_usa28xa_pre_product_id:
1628 fw_name = "keyspan/usa28xa.fw";
1629 break;
1630
1631 case keyspan_usa28xb_pre_product_id:
1632 fw_name = "keyspan/usa28xb.fw";
1633 break;
1634
1635 case keyspan_usa19_pre_product_id:
1636 fw_name = "keyspan/usa19.fw";
1637 break;
1638
1639 case keyspan_usa19qi_pre_product_id:
1640 fw_name = "keyspan/usa19qi.fw";
1641 break;
1642
1643 case keyspan_mpr_pre_product_id:
1644 fw_name = "keyspan/mpr.fw";
1645 break;
1646
1647 case keyspan_usa19qw_pre_product_id:
1648 fw_name = "keyspan/usa19qw.fw";
1649 break;
1650
1651 case keyspan_usa18x_pre_product_id:
1652 fw_name = "keyspan/usa18x.fw";
1653 break;
1654
1655 case keyspan_usa19w_pre_product_id:
1656 fw_name = "keyspan/usa19w.fw";
1657 break;
1658
1659 case keyspan_usa49w_pre_product_id:
1660 fw_name = "keyspan/usa49w.fw";
1661 break;
1662
1663 case keyspan_usa49wlc_pre_product_id:
1664 fw_name = "keyspan/usa49wlc.fw";
1665 break;
1666
1667 default:
1668 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1669 le16_to_cpu(serial->dev->descriptor.idProduct));
1670 return 1;
1671 }
1672
1673 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
1674
1675 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
1676 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
1677 fw_name);
1678 return -ENOENT;
1679 }
1680
1681 /* after downloading firmware Renumeration will occur in a
1682 moment and the new device will bind to the real driver */
1683
1684 /* we don't want this device to have a driver assigned to it. */
1685 return 1;
1686}
1687
1688/* Helper functions used by keyspan_setup_urbs */
1689static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1690 int endpoint)
1691{
1692 struct usb_host_interface *iface_desc;
1693 struct usb_endpoint_descriptor *ep;
1694 int i;
1695
1696 iface_desc = serial->interface->cur_altsetting;
1697 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1698 ep = &iface_desc->endpoint[i].desc;
1699 if (ep->bEndpointAddress == endpoint)
1700 return ep;
1701 }
1702 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n",
1703 endpoint);
1704 return NULL;
1705}
1706
1707static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1708 int dir, void *ctx, char *buf, int len,
1709 void (*callback)(struct urb *))
1710{
1711 struct urb *urb;
1712 struct usb_endpoint_descriptor const *ep_desc;
1713 char const *ep_type_name;
1714
1715 if (endpoint == -1)
1716 return NULL; /* endpoint not needed */
1717
1718 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n",
1719 __func__, endpoint);
1720 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1721 if (!urb)
1722 return NULL;
1723
1724 if (endpoint == 0) {
1725 /* control EP filled in when used */
1726 return urb;
1727 }
1728
1729 ep_desc = find_ep(serial, endpoint);
1730 if (!ep_desc) {
1731 usb_free_urb(urb);
1732 return NULL;
1733 }
1734 if (usb_endpoint_xfer_int(ep_desc)) {
1735 ep_type_name = "INT";
1736 usb_fill_int_urb(urb, serial->dev,
1737 usb_sndintpipe(serial->dev, endpoint) | dir,
1738 buf, len, callback, ctx,
1739 ep_desc->bInterval);
1740 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1741 ep_type_name = "BULK";
1742 usb_fill_bulk_urb(urb, serial->dev,
1743 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1744 buf, len, callback, ctx);
1745 } else {
1746 dev_warn(&serial->interface->dev,
1747 "unsupported endpoint type %x\n",
1748 usb_endpoint_type(ep_desc));
1749 usb_free_urb(urb);
1750 return NULL;
1751 }
1752
1753 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
1754 __func__, urb, ep_type_name, endpoint);
1755 return urb;
1756}
1757
1758static struct callbacks {
1759 void (*instat_callback)(struct urb *);
1760 void (*glocont_callback)(struct urb *);
1761 void (*indat_callback)(struct urb *);
1762 void (*outdat_callback)(struct urb *);
1763 void (*inack_callback)(struct urb *);
1764 void (*outcont_callback)(struct urb *);
1765} keyspan_callbacks[] = {
1766 {
1767 /* msg_usa26 callbacks */
1768 .instat_callback = usa26_instat_callback,
1769 .glocont_callback = usa26_glocont_callback,
1770 .indat_callback = usa26_indat_callback,
1771 .outdat_callback = usa2x_outdat_callback,
1772 .inack_callback = usa26_inack_callback,
1773 .outcont_callback = usa26_outcont_callback,
1774 }, {
1775 /* msg_usa28 callbacks */
1776 .instat_callback = usa28_instat_callback,
1777 .glocont_callback = usa28_glocont_callback,
1778 .indat_callback = usa28_indat_callback,
1779 .outdat_callback = usa2x_outdat_callback,
1780 .inack_callback = usa28_inack_callback,
1781 .outcont_callback = usa28_outcont_callback,
1782 }, {
1783 /* msg_usa49 callbacks */
1784 .instat_callback = usa49_instat_callback,
1785 .glocont_callback = usa49_glocont_callback,
1786 .indat_callback = usa49_indat_callback,
1787 .outdat_callback = usa2x_outdat_callback,
1788 .inack_callback = usa49_inack_callback,
1789 .outcont_callback = usa49_outcont_callback,
1790 }, {
1791 /* msg_usa90 callbacks */
1792 .instat_callback = usa90_instat_callback,
1793 .glocont_callback = usa28_glocont_callback,
1794 .indat_callback = usa90_indat_callback,
1795 .outdat_callback = usa2x_outdat_callback,
1796 .inack_callback = usa28_inack_callback,
1797 .outcont_callback = usa90_outcont_callback,
1798 }, {
1799 /* msg_usa67 callbacks */
1800 .instat_callback = usa67_instat_callback,
1801 .glocont_callback = usa67_glocont_callback,
1802 .indat_callback = usa26_indat_callback,
1803 .outdat_callback = usa2x_outdat_callback,
1804 .inack_callback = usa26_inack_callback,
1805 .outcont_callback = usa26_outcont_callback,
1806 }
1807};
1808
1809 /* Generic setup urbs function that uses
1810 data in device_details */
1811static void keyspan_setup_urbs(struct usb_serial *serial)
1812{
1813 struct keyspan_serial_private *s_priv;
1814 const struct keyspan_device_details *d_details;
1815 struct callbacks *cback;
1816
1817 s_priv = usb_get_serial_data(serial);
1818 d_details = s_priv->device_details;
1819
1820 /* Setup values for the various callback routines */
1821 cback = &keyspan_callbacks[d_details->msg_format];
1822
1823 /* Allocate and set up urbs for each one that is in use,
1824 starting with instat endpoints */
1825 s_priv->instat_urb = keyspan_setup_urb
1826 (serial, d_details->instat_endpoint, USB_DIR_IN,
1827 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1828 cback->instat_callback);
1829
1830 s_priv->indat_urb = keyspan_setup_urb
1831 (serial, d_details->indat_endpoint, USB_DIR_IN,
1832 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1833 usa49wg_indat_callback);
1834
1835 s_priv->glocont_urb = keyspan_setup_urb
1836 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1837 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1838 cback->glocont_callback);
1839}
1840
1841/* usa19 function doesn't require prescaler */
1842static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
1843 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1844 u8 *rate_low, u8 *prescaler, int portnum)
1845{
1846 u32 b16, /* baud rate times 16 (actual rate used internally) */
1847 div, /* divisor */
1848 cnt; /* inverse of divisor (programmed into 8051) */
1849
1850 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1851
1852 /* prevent divide by zero... */
1853 b16 = baud_rate * 16L;
1854 if (b16 == 0)
1855 return KEYSPAN_INVALID_BAUD_RATE;
1856 /* Any "standard" rate over 57k6 is marginal on the USA-19
1857 as we run out of divisor resolution. */
1858 if (baud_rate > 57600)
1859 return KEYSPAN_INVALID_BAUD_RATE;
1860
1861 /* calculate the divisor and the counter (its inverse) */
1862 div = baudclk / b16;
1863 if (div == 0)
1864 return KEYSPAN_INVALID_BAUD_RATE;
1865 else
1866 cnt = 0 - div;
1867
1868 if (div > 0xffff)
1869 return KEYSPAN_INVALID_BAUD_RATE;
1870
1871 /* return the counter values if non-null */
1872 if (rate_low)
1873 *rate_low = (u8) (cnt & 0xff);
1874 if (rate_hi)
1875 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1876 if (rate_low && rate_hi)
1877 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1878 __func__, baud_rate, *rate_hi, *rate_low);
1879 return KEYSPAN_BAUD_RATE_OK;
1880}
1881
1882/* usa19hs function doesn't require prescaler */
1883static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
1884 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1885 u8 *rate_low, u8 *prescaler, int portnum)
1886{
1887 u32 b16, /* baud rate times 16 (actual rate used internally) */
1888 div; /* divisor */
1889
1890 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1891
1892 /* prevent divide by zero... */
1893 b16 = baud_rate * 16L;
1894 if (b16 == 0)
1895 return KEYSPAN_INVALID_BAUD_RATE;
1896
1897 /* calculate the divisor */
1898 div = baudclk / b16;
1899 if (div == 0)
1900 return KEYSPAN_INVALID_BAUD_RATE;
1901
1902 if (div > 0xffff)
1903 return KEYSPAN_INVALID_BAUD_RATE;
1904
1905 /* return the counter values if non-null */
1906 if (rate_low)
1907 *rate_low = (u8) (div & 0xff);
1908
1909 if (rate_hi)
1910 *rate_hi = (u8) ((div >> 8) & 0xff);
1911
1912 if (rate_low && rate_hi)
1913 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1914 __func__, baud_rate, *rate_hi, *rate_low);
1915
1916 return KEYSPAN_BAUD_RATE_OK;
1917}
1918
1919static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
1920 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1921 u8 *rate_low, u8 *prescaler, int portnum)
1922{
1923 u32 b16, /* baud rate times 16 (actual rate used internally) */
1924 clk, /* clock with 13/8 prescaler */
1925 div, /* divisor using 13/8 prescaler */
1926 res, /* resulting baud rate using 13/8 prescaler */
1927 diff, /* error using 13/8 prescaler */
1928 smallest_diff;
1929 u8 best_prescaler;
1930 int i;
1931
1932 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1933
1934 /* prevent divide by zero */
1935 b16 = baud_rate * 16L;
1936 if (b16 == 0)
1937 return KEYSPAN_INVALID_BAUD_RATE;
1938
1939 /* Calculate prescaler by trying them all and looking
1940 for best fit */
1941
1942 /* start with largest possible difference */
1943 smallest_diff = 0xffffffff;
1944
1945 /* 0 is an invalid prescaler, used as a flag */
1946 best_prescaler = 0;
1947
1948 for (i = 8; i <= 0xff; ++i) {
1949 clk = (baudclk * 8) / (u32) i;
1950
1951 div = clk / b16;
1952 if (div == 0)
1953 continue;
1954
1955 res = clk / div;
1956 diff = (res > b16) ? (res-b16) : (b16-res);
1957
1958 if (diff < smallest_diff) {
1959 best_prescaler = i;
1960 smallest_diff = diff;
1961 }
1962 }
1963
1964 if (best_prescaler == 0)
1965 return KEYSPAN_INVALID_BAUD_RATE;
1966
1967 clk = (baudclk * 8) / (u32) best_prescaler;
1968 div = clk / b16;
1969
1970 /* return the divisor and prescaler if non-null */
1971 if (rate_low)
1972 *rate_low = (u8) (div & 0xff);
1973 if (rate_hi)
1974 *rate_hi = (u8) ((div >> 8) & 0xff);
1975 if (prescaler) {
1976 *prescaler = best_prescaler;
1977 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
1978 }
1979 return KEYSPAN_BAUD_RATE_OK;
1980}
1981
1982 /* USA-28 supports different maximum baud rates on each port */
1983static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
1984 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1985 u8 *rate_low, u8 *prescaler, int portnum)
1986{
1987 u32 b16, /* baud rate times 16 (actual rate used internally) */
1988 div, /* divisor */
1989 cnt; /* inverse of divisor (programmed into 8051) */
1990
1991 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1992
1993 /* prevent divide by zero */
1994 b16 = baud_rate * 16L;
1995 if (b16 == 0)
1996 return KEYSPAN_INVALID_BAUD_RATE;
1997
1998 /* calculate the divisor and the counter (its inverse) */
1999 div = KEYSPAN_USA28_BAUDCLK / b16;
2000 if (div == 0)
2001 return KEYSPAN_INVALID_BAUD_RATE;
2002 else
2003 cnt = 0 - div;
2004
2005 /* check for out of range, based on portnum,
2006 and return result */
2007 if (portnum == 0) {
2008 if (div > 0xffff)
2009 return KEYSPAN_INVALID_BAUD_RATE;
2010 } else {
2011 if (portnum == 1) {
2012 if (div > 0xff)
2013 return KEYSPAN_INVALID_BAUD_RATE;
2014 } else
2015 return KEYSPAN_INVALID_BAUD_RATE;
2016 }
2017
2018 /* return the counter values if not NULL
2019 (port 1 will ignore retHi) */
2020 if (rate_low)
2021 *rate_low = (u8) (cnt & 0xff);
2022 if (rate_hi)
2023 *rate_hi = (u8) ((cnt >> 8) & 0xff);
2024 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
2025 return KEYSPAN_BAUD_RATE_OK;
2026}
2027
2028static int keyspan_usa26_send_setup(struct usb_serial *serial,
2029 struct usb_serial_port *port,
2030 int reset_port)
2031{
2032 struct keyspan_usa26_portControlMessage msg;
2033 struct keyspan_serial_private *s_priv;
2034 struct keyspan_port_private *p_priv;
2035 const struct keyspan_device_details *d_details;
2036 struct urb *this_urb;
2037 int device_port, err;
2038
2039 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
2040
2041 s_priv = usb_get_serial_data(serial);
2042 p_priv = usb_get_serial_port_data(port);
2043 d_details = s_priv->device_details;
2044 device_port = port->port_number;
2045
2046 this_urb = p_priv->outcont_urb;
2047
2048 /* Make sure we have an urb then send the message */
2049 if (this_urb == NULL) {
2050 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2051 return -1;
2052 }
2053
2054 dev_dbg(&port->dev, "%s - endpoint %x\n",
2055 __func__, usb_pipeendpoint(this_urb->pipe));
2056
2057 /* Save reset port val for resend.
2058 Don't overwrite resend for open/close condition. */
2059 if ((reset_port + 1) > p_priv->resend_cont)
2060 p_priv->resend_cont = reset_port + 1;
2061 if (this_urb->status == -EINPROGRESS) {
2062 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2063 mdelay(5);
2064 return -1;
2065 }
2066
2067 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
2068
2069 /* Only set baud rate if it's changed */
2070 if (p_priv->old_baud != p_priv->baud) {
2071 p_priv->old_baud = p_priv->baud;
2072 msg.setClocking = 0xff;
2073 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2074 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2075 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2076 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2077 __func__, p_priv->baud);
2078 msg.baudLo = 0;
2079 msg.baudHi = 125; /* Values for 9600 baud */
2080 msg.prescaler = 10;
2081 }
2082 msg.setPrescaler = 0xff;
2083 }
2084
2085 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2086 switch (p_priv->cflag & CSIZE) {
2087 case CS5:
2088 msg.lcr |= USA_DATABITS_5;
2089 break;
2090 case CS6:
2091 msg.lcr |= USA_DATABITS_6;
2092 break;
2093 case CS7:
2094 msg.lcr |= USA_DATABITS_7;
2095 break;
2096 case CS8:
2097 msg.lcr |= USA_DATABITS_8;
2098 break;
2099 }
2100 if (p_priv->cflag & PARENB) {
2101 /* note USA_PARITY_NONE == 0 */
2102 msg.lcr |= (p_priv->cflag & PARODD) ?
2103 USA_PARITY_ODD : USA_PARITY_EVEN;
2104 }
2105 msg.setLcr = 0xff;
2106
2107 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2108 msg.xonFlowControl = 0;
2109 msg.setFlowControl = 0xff;
2110 msg.forwardingLength = 16;
2111 msg.xonChar = 17;
2112 msg.xoffChar = 19;
2113
2114 /* Opening port */
2115 if (reset_port == 1) {
2116 msg._txOn = 1;
2117 msg._txOff = 0;
2118 msg.txFlush = 0;
2119 msg.txBreak = 0;
2120 msg.rxOn = 1;
2121 msg.rxOff = 0;
2122 msg.rxFlush = 1;
2123 msg.rxForward = 0;
2124 msg.returnStatus = 0;
2125 msg.resetDataToggle = 0xff;
2126 }
2127
2128 /* Closing port */
2129 else if (reset_port == 2) {
2130 msg._txOn = 0;
2131 msg._txOff = 1;
2132 msg.txFlush = 0;
2133 msg.txBreak = 0;
2134 msg.rxOn = 0;
2135 msg.rxOff = 1;
2136 msg.rxFlush = 1;
2137 msg.rxForward = 0;
2138 msg.returnStatus = 0;
2139 msg.resetDataToggle = 0;
2140 }
2141
2142 /* Sending intermediate configs */
2143 else {
2144 msg._txOn = (!p_priv->break_on);
2145 msg._txOff = 0;
2146 msg.txFlush = 0;
2147 msg.txBreak = (p_priv->break_on);
2148 msg.rxOn = 0;
2149 msg.rxOff = 0;
2150 msg.rxFlush = 0;
2151 msg.rxForward = 0;
2152 msg.returnStatus = 0;
2153 msg.resetDataToggle = 0x0;
2154 }
2155
2156 /* Do handshaking outputs */
2157 msg.setTxTriState_setRts = 0xff;
2158 msg.txTriState_rts = p_priv->rts_state;
2159
2160 msg.setHskoa_setDtr = 0xff;
2161 msg.hskoa_dtr = p_priv->dtr_state;
2162
2163 p_priv->resend_cont = 0;
2164 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2165
2166 /* send the data out the device on control endpoint */
2167 this_urb->transfer_buffer_length = sizeof(msg);
2168
2169 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2170 if (err != 0)
2171 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2172 return 0;
2173}
2174
2175static int keyspan_usa28_send_setup(struct usb_serial *serial,
2176 struct usb_serial_port *port,
2177 int reset_port)
2178{
2179 struct keyspan_usa28_portControlMessage msg;
2180 struct keyspan_serial_private *s_priv;
2181 struct keyspan_port_private *p_priv;
2182 const struct keyspan_device_details *d_details;
2183 struct urb *this_urb;
2184 int device_port, err;
2185
2186 s_priv = usb_get_serial_data(serial);
2187 p_priv = usb_get_serial_port_data(port);
2188 d_details = s_priv->device_details;
2189 device_port = port->port_number;
2190
2191 /* only do something if we have a bulk out endpoint */
2192 this_urb = p_priv->outcont_urb;
2193 if (this_urb == NULL) {
2194 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2195 return -1;
2196 }
2197
2198 /* Save reset port val for resend.
2199 Don't overwrite resend for open/close condition. */
2200 if ((reset_port + 1) > p_priv->resend_cont)
2201 p_priv->resend_cont = reset_port + 1;
2202 if (this_urb->status == -EINPROGRESS) {
2203 dev_dbg(&port->dev, "%s already writing\n", __func__);
2204 mdelay(5);
2205 return -1;
2206 }
2207
2208 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2209
2210 msg.setBaudRate = 1;
2211 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2212 &msg.baudHi, &msg.baudLo, NULL,
2213 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2214 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
2215 __func__, p_priv->baud);
2216 msg.baudLo = 0xff;
2217 msg.baudHi = 0xb2; /* Values for 9600 baud */
2218 }
2219
2220 /* If parity is enabled, we must calculate it ourselves. */
2221 msg.parity = 0; /* XXX for now */
2222
2223 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2224 msg.xonFlowControl = 0;
2225
2226 /* Do handshaking outputs, DTR is inverted relative to RTS */
2227 msg.rts = p_priv->rts_state;
2228 msg.dtr = p_priv->dtr_state;
2229
2230 msg.forwardingLength = 16;
2231 msg.forwardMs = 10;
2232 msg.breakThreshold = 45;
2233 msg.xonChar = 17;
2234 msg.xoffChar = 19;
2235
2236 /*msg.returnStatus = 1;
2237 msg.resetDataToggle = 0xff;*/
2238 /* Opening port */
2239 if (reset_port == 1) {
2240 msg._txOn = 1;
2241 msg._txOff = 0;
2242 msg.txFlush = 0;
2243 msg.txForceXoff = 0;
2244 msg.txBreak = 0;
2245 msg.rxOn = 1;
2246 msg.rxOff = 0;
2247 msg.rxFlush = 1;
2248 msg.rxForward = 0;
2249 msg.returnStatus = 0;
2250 msg.resetDataToggle = 0xff;
2251 }
2252 /* Closing port */
2253 else if (reset_port == 2) {
2254 msg._txOn = 0;
2255 msg._txOff = 1;
2256 msg.txFlush = 0;
2257 msg.txForceXoff = 0;
2258 msg.txBreak = 0;
2259 msg.rxOn = 0;
2260 msg.rxOff = 1;
2261 msg.rxFlush = 1;
2262 msg.rxForward = 0;
2263 msg.returnStatus = 0;
2264 msg.resetDataToggle = 0;
2265 }
2266 /* Sending intermediate configs */
2267 else {
2268 msg._txOn = (!p_priv->break_on);
2269 msg._txOff = 0;
2270 msg.txFlush = 0;
2271 msg.txForceXoff = 0;
2272 msg.txBreak = (p_priv->break_on);
2273 msg.rxOn = 0;
2274 msg.rxOff = 0;
2275 msg.rxFlush = 0;
2276 msg.rxForward = 0;
2277 msg.returnStatus = 0;
2278 msg.resetDataToggle = 0x0;
2279 }
2280
2281 p_priv->resend_cont = 0;
2282 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2283
2284 /* send the data out the device on control endpoint */
2285 this_urb->transfer_buffer_length = sizeof(msg);
2286
2287 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2288 if (err != 0)
2289 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
2290
2291 return 0;
2292}
2293
2294static int keyspan_usa49_send_setup(struct usb_serial *serial,
2295 struct usb_serial_port *port,
2296 int reset_port)
2297{
2298 struct keyspan_usa49_portControlMessage msg;
2299 struct usb_ctrlrequest *dr = NULL;
2300 struct keyspan_serial_private *s_priv;
2301 struct keyspan_port_private *p_priv;
2302 const struct keyspan_device_details *d_details;
2303 struct urb *this_urb;
2304 int err, device_port;
2305
2306 s_priv = usb_get_serial_data(serial);
2307 p_priv = usb_get_serial_port_data(port);
2308 d_details = s_priv->device_details;
2309
2310 this_urb = s_priv->glocont_urb;
2311
2312 /* Work out which port within the device is being setup */
2313 device_port = port->port_number;
2314
2315 /* Make sure we have an urb then send the message */
2316 if (this_urb == NULL) {
2317 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2318 return -1;
2319 }
2320
2321 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n",
2322 __func__, usb_pipeendpoint(this_urb->pipe), device_port);
2323
2324 /* Save reset port val for resend.
2325 Don't overwrite resend for open/close condition. */
2326 if ((reset_port + 1) > p_priv->resend_cont)
2327 p_priv->resend_cont = reset_port + 1;
2328
2329 if (this_urb->status == -EINPROGRESS) {
2330 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2331 mdelay(5);
2332 return -1;
2333 }
2334
2335 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2336
2337 msg.portNumber = device_port;
2338
2339 /* Only set baud rate if it's changed */
2340 if (p_priv->old_baud != p_priv->baud) {
2341 p_priv->old_baud = p_priv->baud;
2342 msg.setClocking = 0xff;
2343 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2344 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2345 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2346 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2347 __func__, p_priv->baud);
2348 msg.baudLo = 0;
2349 msg.baudHi = 125; /* Values for 9600 baud */
2350 msg.prescaler = 10;
2351 }
2352 /* msg.setPrescaler = 0xff; */
2353 }
2354
2355 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2356 switch (p_priv->cflag & CSIZE) {
2357 case CS5:
2358 msg.lcr |= USA_DATABITS_5;
2359 break;
2360 case CS6:
2361 msg.lcr |= USA_DATABITS_6;
2362 break;
2363 case CS7:
2364 msg.lcr |= USA_DATABITS_7;
2365 break;
2366 case CS8:
2367 msg.lcr |= USA_DATABITS_8;
2368 break;
2369 }
2370 if (p_priv->cflag & PARENB) {
2371 /* note USA_PARITY_NONE == 0 */
2372 msg.lcr |= (p_priv->cflag & PARODD) ?
2373 USA_PARITY_ODD : USA_PARITY_EVEN;
2374 }
2375 msg.setLcr = 0xff;
2376
2377 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2378 msg.xonFlowControl = 0;
2379 msg.setFlowControl = 0xff;
2380
2381 msg.forwardingLength = 16;
2382 msg.xonChar = 17;
2383 msg.xoffChar = 19;
2384
2385 /* Opening port */
2386 if (reset_port == 1) {
2387 msg._txOn = 1;
2388 msg._txOff = 0;
2389 msg.txFlush = 0;
2390 msg.txBreak = 0;
2391 msg.rxOn = 1;
2392 msg.rxOff = 0;
2393 msg.rxFlush = 1;
2394 msg.rxForward = 0;
2395 msg.returnStatus = 0;
2396 msg.resetDataToggle = 0xff;
2397 msg.enablePort = 1;
2398 msg.disablePort = 0;
2399 }
2400 /* Closing port */
2401 else if (reset_port == 2) {
2402 msg._txOn = 0;
2403 msg._txOff = 1;
2404 msg.txFlush = 0;
2405 msg.txBreak = 0;
2406 msg.rxOn = 0;
2407 msg.rxOff = 1;
2408 msg.rxFlush = 1;
2409 msg.rxForward = 0;
2410 msg.returnStatus = 0;
2411 msg.resetDataToggle = 0;
2412 msg.enablePort = 0;
2413 msg.disablePort = 1;
2414 }
2415 /* Sending intermediate configs */
2416 else {
2417 msg._txOn = (!p_priv->break_on);
2418 msg._txOff = 0;
2419 msg.txFlush = 0;
2420 msg.txBreak = (p_priv->break_on);
2421 msg.rxOn = 0;
2422 msg.rxOff = 0;
2423 msg.rxFlush = 0;
2424 msg.rxForward = 0;
2425 msg.returnStatus = 0;
2426 msg.resetDataToggle = 0x0;
2427 msg.enablePort = 0;
2428 msg.disablePort = 0;
2429 }
2430
2431 /* Do handshaking outputs */
2432 msg.setRts = 0xff;
2433 msg.rts = p_priv->rts_state;
2434
2435 msg.setDtr = 0xff;
2436 msg.dtr = p_priv->dtr_state;
2437
2438 p_priv->resend_cont = 0;
2439
2440 /* if the device is a 49wg, we send control message on usb
2441 control EP 0 */
2442
2443 if (d_details->product_id == keyspan_usa49wg_product_id) {
2444 dr = (void *)(s_priv->ctrl_buf);
2445 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2446 dr->bRequest = 0xB0; /* 49wg control message */
2447 dr->wValue = 0;
2448 dr->wIndex = 0;
2449 dr->wLength = cpu_to_le16(sizeof(msg));
2450
2451 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2452
2453 usb_fill_control_urb(this_urb, serial->dev,
2454 usb_sndctrlpipe(serial->dev, 0),
2455 (unsigned char *)dr, s_priv->glocont_buf,
2456 sizeof(msg), usa49_glocont_callback, serial);
2457
2458 } else {
2459 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2460
2461 /* send the data out the device on control endpoint */
2462 this_urb->transfer_buffer_length = sizeof(msg);
2463 }
2464 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2465 if (err != 0)
2466 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2467
2468 return 0;
2469}
2470
2471static int keyspan_usa90_send_setup(struct usb_serial *serial,
2472 struct usb_serial_port *port,
2473 int reset_port)
2474{
2475 struct keyspan_usa90_portControlMessage msg;
2476 struct keyspan_serial_private *s_priv;
2477 struct keyspan_port_private *p_priv;
2478 const struct keyspan_device_details *d_details;
2479 struct urb *this_urb;
2480 int err;
2481 u8 prescaler;
2482
2483 s_priv = usb_get_serial_data(serial);
2484 p_priv = usb_get_serial_port_data(port);
2485 d_details = s_priv->device_details;
2486
2487 /* only do something if we have a bulk out endpoint */
2488 this_urb = p_priv->outcont_urb;
2489 if (this_urb == NULL) {
2490 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2491 return -1;
2492 }
2493
2494 /* Save reset port val for resend.
2495 Don't overwrite resend for open/close condition. */
2496 if ((reset_port + 1) > p_priv->resend_cont)
2497 p_priv->resend_cont = reset_port + 1;
2498 if (this_urb->status == -EINPROGRESS) {
2499 dev_dbg(&port->dev, "%s already writing\n", __func__);
2500 mdelay(5);
2501 return -1;
2502 }
2503
2504 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2505
2506 /* Only set baud rate if it's changed */
2507 if (p_priv->old_baud != p_priv->baud) {
2508 p_priv->old_baud = p_priv->baud;
2509 msg.setClocking = 0x01;
2510 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2511 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2512 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2513 __func__, p_priv->baud);
2514 p_priv->baud = 9600;
2515 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2516 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2517 }
2518 msg.setRxMode = 1;
2519 msg.setTxMode = 1;
2520 }
2521
2522 /* modes must always be correctly specified */
2523 if (p_priv->baud > 57600) {
2524 msg.rxMode = RXMODE_DMA;
2525 msg.txMode = TXMODE_DMA;
2526 } else {
2527 msg.rxMode = RXMODE_BYHAND;
2528 msg.txMode = TXMODE_BYHAND;
2529 }
2530
2531 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2532 switch (p_priv->cflag & CSIZE) {
2533 case CS5:
2534 msg.lcr |= USA_DATABITS_5;
2535 break;
2536 case CS6:
2537 msg.lcr |= USA_DATABITS_6;
2538 break;
2539 case CS7:
2540 msg.lcr |= USA_DATABITS_7;
2541 break;
2542 case CS8:
2543 msg.lcr |= USA_DATABITS_8;
2544 break;
2545 }
2546 if (p_priv->cflag & PARENB) {
2547 /* note USA_PARITY_NONE == 0 */
2548 msg.lcr |= (p_priv->cflag & PARODD) ?
2549 USA_PARITY_ODD : USA_PARITY_EVEN;
2550 }
2551 if (p_priv->old_cflag != p_priv->cflag) {
2552 p_priv->old_cflag = p_priv->cflag;
2553 msg.setLcr = 0x01;
2554 }
2555
2556 if (p_priv->flow_control == flow_cts)
2557 msg.txFlowControl = TXFLOW_CTS;
2558 msg.setTxFlowControl = 0x01;
2559 msg.setRxFlowControl = 0x01;
2560
2561 msg.rxForwardingLength = 16;
2562 msg.rxForwardingTimeout = 16;
2563 msg.txAckSetting = 0;
2564 msg.xonChar = 17;
2565 msg.xoffChar = 19;
2566
2567 /* Opening port */
2568 if (reset_port == 1) {
2569 msg.portEnabled = 1;
2570 msg.rxFlush = 1;
2571 msg.txBreak = (p_priv->break_on);
2572 }
2573 /* Closing port */
2574 else if (reset_port == 2)
2575 msg.portEnabled = 0;
2576 /* Sending intermediate configs */
2577 else {
2578 msg.portEnabled = 1;
2579 msg.txBreak = (p_priv->break_on);
2580 }
2581
2582 /* Do handshaking outputs */
2583 msg.setRts = 0x01;
2584 msg.rts = p_priv->rts_state;
2585
2586 msg.setDtr = 0x01;
2587 msg.dtr = p_priv->dtr_state;
2588
2589 p_priv->resend_cont = 0;
2590 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2591
2592 /* send the data out the device on control endpoint */
2593 this_urb->transfer_buffer_length = sizeof(msg);
2594
2595 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2596 if (err != 0)
2597 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2598 return 0;
2599}
2600
2601static int keyspan_usa67_send_setup(struct usb_serial *serial,
2602 struct usb_serial_port *port,
2603 int reset_port)
2604{
2605 struct keyspan_usa67_portControlMessage msg;
2606 struct keyspan_serial_private *s_priv;
2607 struct keyspan_port_private *p_priv;
2608 const struct keyspan_device_details *d_details;
2609 struct urb *this_urb;
2610 int err, device_port;
2611
2612 s_priv = usb_get_serial_data(serial);
2613 p_priv = usb_get_serial_port_data(port);
2614 d_details = s_priv->device_details;
2615
2616 this_urb = s_priv->glocont_urb;
2617
2618 /* Work out which port within the device is being setup */
2619 device_port = port->port_number;
2620
2621 /* Make sure we have an urb then send the message */
2622 if (this_urb == NULL) {
2623 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2624 return -1;
2625 }
2626
2627 /* Save reset port val for resend.
2628 Don't overwrite resend for open/close condition. */
2629 if ((reset_port + 1) > p_priv->resend_cont)
2630 p_priv->resend_cont = reset_port + 1;
2631 if (this_urb->status == -EINPROGRESS) {
2632 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2633 mdelay(5);
2634 return -1;
2635 }
2636
2637 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2638
2639 msg.port = device_port;
2640
2641 /* Only set baud rate if it's changed */
2642 if (p_priv->old_baud != p_priv->baud) {
2643 p_priv->old_baud = p_priv->baud;
2644 msg.setClocking = 0xff;
2645 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2646 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2647 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2648 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2649 __func__, p_priv->baud);
2650 msg.baudLo = 0;
2651 msg.baudHi = 125; /* Values for 9600 baud */
2652 msg.prescaler = 10;
2653 }
2654 msg.setPrescaler = 0xff;
2655 }
2656
2657 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2658 switch (p_priv->cflag & CSIZE) {
2659 case CS5:
2660 msg.lcr |= USA_DATABITS_5;
2661 break;
2662 case CS6:
2663 msg.lcr |= USA_DATABITS_6;
2664 break;
2665 case CS7:
2666 msg.lcr |= USA_DATABITS_7;
2667 break;
2668 case CS8:
2669 msg.lcr |= USA_DATABITS_8;
2670 break;
2671 }
2672 if (p_priv->cflag & PARENB) {
2673 /* note USA_PARITY_NONE == 0 */
2674 msg.lcr |= (p_priv->cflag & PARODD) ?
2675 USA_PARITY_ODD : USA_PARITY_EVEN;
2676 }
2677 msg.setLcr = 0xff;
2678
2679 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2680 msg.xonFlowControl = 0;
2681 msg.setFlowControl = 0xff;
2682 msg.forwardingLength = 16;
2683 msg.xonChar = 17;
2684 msg.xoffChar = 19;
2685
2686 if (reset_port == 1) {
2687 /* Opening port */
2688 msg._txOn = 1;
2689 msg._txOff = 0;
2690 msg.txFlush = 0;
2691 msg.txBreak = 0;
2692 msg.rxOn = 1;
2693 msg.rxOff = 0;
2694 msg.rxFlush = 1;
2695 msg.rxForward = 0;
2696 msg.returnStatus = 0;
2697 msg.resetDataToggle = 0xff;
2698 } else if (reset_port == 2) {
2699 /* Closing port */
2700 msg._txOn = 0;
2701 msg._txOff = 1;
2702 msg.txFlush = 0;
2703 msg.txBreak = 0;
2704 msg.rxOn = 0;
2705 msg.rxOff = 1;
2706 msg.rxFlush = 1;
2707 msg.rxForward = 0;
2708 msg.returnStatus = 0;
2709 msg.resetDataToggle = 0;
2710 } else {
2711 /* Sending intermediate configs */
2712 msg._txOn = (!p_priv->break_on);
2713 msg._txOff = 0;
2714 msg.txFlush = 0;
2715 msg.txBreak = (p_priv->break_on);
2716 msg.rxOn = 0;
2717 msg.rxOff = 0;
2718 msg.rxFlush = 0;
2719 msg.rxForward = 0;
2720 msg.returnStatus = 0;
2721 msg.resetDataToggle = 0x0;
2722 }
2723
2724 /* Do handshaking outputs */
2725 msg.setTxTriState_setRts = 0xff;
2726 msg.txTriState_rts = p_priv->rts_state;
2727
2728 msg.setHskoa_setDtr = 0xff;
2729 msg.hskoa_dtr = p_priv->dtr_state;
2730
2731 p_priv->resend_cont = 0;
2732
2733 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2734
2735 /* send the data out the device on control endpoint */
2736 this_urb->transfer_buffer_length = sizeof(msg);
2737
2738 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2739 if (err != 0)
2740 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2741 return 0;
2742}
2743
2744static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2745{
2746 struct usb_serial *serial = port->serial;
2747 struct keyspan_serial_private *s_priv;
2748 const struct keyspan_device_details *d_details;
2749
2750 s_priv = usb_get_serial_data(serial);
2751 d_details = s_priv->device_details;
2752
2753 switch (d_details->msg_format) {
2754 case msg_usa26:
2755 keyspan_usa26_send_setup(serial, port, reset_port);
2756 break;
2757 case msg_usa28:
2758 keyspan_usa28_send_setup(serial, port, reset_port);
2759 break;
2760 case msg_usa49:
2761 keyspan_usa49_send_setup(serial, port, reset_port);
2762 break;
2763 case msg_usa90:
2764 keyspan_usa90_send_setup(serial, port, reset_port);
2765 break;
2766 case msg_usa67:
2767 keyspan_usa67_send_setup(serial, port, reset_port);
2768 break;
2769 }
2770}
2771
2772
2773/* Gets called by the "real" driver (ie once firmware is loaded
2774 and renumeration has taken place. */
2775static int keyspan_startup(struct usb_serial *serial)
2776{
2777 int i, err;
2778 struct keyspan_serial_private *s_priv;
2779 const struct keyspan_device_details *d_details;
2780
2781 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2782 if (d_details->product_id ==
2783 le16_to_cpu(serial->dev->descriptor.idProduct))
2784 break;
2785 if (d_details == NULL) {
2786 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2787 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2788 return -ENODEV;
2789 }
2790
2791 /* Setup private data for serial driver */
2792 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2793 if (!s_priv)
2794 return -ENOMEM;
2795
2796 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL);
2797 if (!s_priv->instat_buf)
2798 goto err_instat_buf;
2799
2800 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL);
2801 if (!s_priv->indat_buf)
2802 goto err_indat_buf;
2803
2804 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL);
2805 if (!s_priv->glocont_buf)
2806 goto err_glocont_buf;
2807
2808 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
2809 if (!s_priv->ctrl_buf)
2810 goto err_ctrl_buf;
2811
2812 s_priv->device_details = d_details;
2813 usb_set_serial_data(serial, s_priv);
2814
2815 keyspan_setup_urbs(serial);
2816
2817 if (s_priv->instat_urb != NULL) {
2818 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2819 if (err != 0)
2820 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
2821 }
2822 if (s_priv->indat_urb != NULL) {
2823 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2824 if (err != 0)
2825 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
2826 }
2827
2828 return 0;
2829
2830err_ctrl_buf:
2831 kfree(s_priv->glocont_buf);
2832err_glocont_buf:
2833 kfree(s_priv->indat_buf);
2834err_indat_buf:
2835 kfree(s_priv->instat_buf);
2836err_instat_buf:
2837 kfree(s_priv);
2838
2839 return -ENOMEM;
2840}
2841
2842static void keyspan_disconnect(struct usb_serial *serial)
2843{
2844 struct keyspan_serial_private *s_priv;
2845
2846 s_priv = usb_get_serial_data(serial);
2847
2848 usb_kill_urb(s_priv->instat_urb);
2849 usb_kill_urb(s_priv->glocont_urb);
2850 usb_kill_urb(s_priv->indat_urb);
2851}
2852
2853static void keyspan_release(struct usb_serial *serial)
2854{
2855 struct keyspan_serial_private *s_priv;
2856
2857 s_priv = usb_get_serial_data(serial);
2858
2859 /* Make sure to unlink the URBs submitted in attach. */
2860 usb_kill_urb(s_priv->instat_urb);
2861 usb_kill_urb(s_priv->indat_urb);
2862
2863 usb_free_urb(s_priv->instat_urb);
2864 usb_free_urb(s_priv->indat_urb);
2865 usb_free_urb(s_priv->glocont_urb);
2866
2867 kfree(s_priv->ctrl_buf);
2868 kfree(s_priv->glocont_buf);
2869 kfree(s_priv->indat_buf);
2870 kfree(s_priv->instat_buf);
2871
2872 kfree(s_priv);
2873}
2874
2875static int keyspan_port_probe(struct usb_serial_port *port)
2876{
2877 struct usb_serial *serial = port->serial;
2878 struct keyspan_serial_private *s_priv;
2879 struct keyspan_port_private *p_priv;
2880 const struct keyspan_device_details *d_details;
2881 struct callbacks *cback;
2882 int endp;
2883 int port_num;
2884 int i;
2885
2886 s_priv = usb_get_serial_data(serial);
2887 d_details = s_priv->device_details;
2888
2889 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL);
2890 if (!p_priv)
2891 return -ENOMEM;
2892
2893 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
2894 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
2895 if (!p_priv->in_buffer[i])
2896 goto err_free_in_buffer;
2897 }
2898
2899 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
2900 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
2901 if (!p_priv->out_buffer[i])
2902 goto err_free_out_buffer;
2903 }
2904
2905 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
2906 if (!p_priv->inack_buffer)
2907 goto err_free_out_buffer;
2908
2909 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
2910 if (!p_priv->outcont_buffer)
2911 goto err_free_inack_buffer;
2912
2913 p_priv->device_details = d_details;
2914
2915 /* Setup values for the various callback routines */
2916 cback = &keyspan_callbacks[d_details->msg_format];
2917
2918 port_num = port->port_number;
2919
2920 /* Do indat endpoints first, once for each flip */
2921 endp = d_details->indat_endpoints[port_num];
2922 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) {
2923 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp,
2924 USB_DIR_IN, port,
2925 p_priv->in_buffer[i],
2926 IN_BUFLEN,
2927 cback->indat_callback);
2928 }
2929 /* outdat endpoints also have flip */
2930 endp = d_details->outdat_endpoints[port_num];
2931 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) {
2932 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp,
2933 USB_DIR_OUT, port,
2934 p_priv->out_buffer[i],
2935 OUT_BUFLEN,
2936 cback->outdat_callback);
2937 }
2938 /* inack endpoint */
2939 p_priv->inack_urb = keyspan_setup_urb(serial,
2940 d_details->inack_endpoints[port_num],
2941 USB_DIR_IN, port,
2942 p_priv->inack_buffer,
2943 INACK_BUFLEN,
2944 cback->inack_callback);
2945 /* outcont endpoint */
2946 p_priv->outcont_urb = keyspan_setup_urb(serial,
2947 d_details->outcont_endpoints[port_num],
2948 USB_DIR_OUT, port,
2949 p_priv->outcont_buffer,
2950 OUTCONT_BUFLEN,
2951 cback->outcont_callback);
2952
2953 usb_set_serial_port_data(port, p_priv);
2954
2955 return 0;
2956
2957err_free_inack_buffer:
2958 kfree(p_priv->inack_buffer);
2959err_free_out_buffer:
2960 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2961 kfree(p_priv->out_buffer[i]);
2962err_free_in_buffer:
2963 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2964 kfree(p_priv->in_buffer[i]);
2965 kfree(p_priv);
2966
2967 return -ENOMEM;
2968}
2969
2970static void keyspan_port_remove(struct usb_serial_port *port)
2971{
2972 struct keyspan_port_private *p_priv;
2973 int i;
2974
2975 p_priv = usb_get_serial_port_data(port);
2976
2977 usb_kill_urb(p_priv->inack_urb);
2978 usb_kill_urb(p_priv->outcont_urb);
2979 for (i = 0; i < 2; i++) {
2980 usb_kill_urb(p_priv->in_urbs[i]);
2981 usb_kill_urb(p_priv->out_urbs[i]);
2982 }
2983
2984 usb_free_urb(p_priv->inack_urb);
2985 usb_free_urb(p_priv->outcont_urb);
2986 for (i = 0; i < 2; i++) {
2987 usb_free_urb(p_priv->in_urbs[i]);
2988 usb_free_urb(p_priv->out_urbs[i]);
2989 }
2990
2991 kfree(p_priv->outcont_buffer);
2992 kfree(p_priv->inack_buffer);
2993 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2994 kfree(p_priv->out_buffer[i]);
2995 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2996 kfree(p_priv->in_buffer[i]);
2997
2998 kfree(p_priv);
2999}
3000
3001/* Structs for the devices, pre and post renumeration. */
3002static struct usb_serial_driver keyspan_pre_device = {
3003 .driver = {
3004 .owner = THIS_MODULE,
3005 .name = "keyspan_no_firm",
3006 },
3007 .description = "Keyspan - (without firmware)",
3008 .id_table = keyspan_pre_ids,
3009 .num_ports = 1,
3010 .attach = keyspan_fake_startup,
3011};
3012
3013static struct usb_serial_driver keyspan_1port_device = {
3014 .driver = {
3015 .owner = THIS_MODULE,
3016 .name = "keyspan_1",
3017 },
3018 .description = "Keyspan 1 port adapter",
3019 .id_table = keyspan_1port_ids,
3020 .num_ports = 1,
3021 .open = keyspan_open,
3022 .close = keyspan_close,
3023 .dtr_rts = keyspan_dtr_rts,
3024 .write = keyspan_write,
3025 .write_room = keyspan_write_room,
3026 .set_termios = keyspan_set_termios,
3027 .break_ctl = keyspan_break_ctl,
3028 .tiocmget = keyspan_tiocmget,
3029 .tiocmset = keyspan_tiocmset,
3030 .attach = keyspan_startup,
3031 .disconnect = keyspan_disconnect,
3032 .release = keyspan_release,
3033 .port_probe = keyspan_port_probe,
3034 .port_remove = keyspan_port_remove,
3035};
3036
3037static struct usb_serial_driver keyspan_2port_device = {
3038 .driver = {
3039 .owner = THIS_MODULE,
3040 .name = "keyspan_2",
3041 },
3042 .description = "Keyspan 2 port adapter",
3043 .id_table = keyspan_2port_ids,
3044 .num_ports = 2,
3045 .open = keyspan_open,
3046 .close = keyspan_close,
3047 .dtr_rts = keyspan_dtr_rts,
3048 .write = keyspan_write,
3049 .write_room = keyspan_write_room,
3050 .set_termios = keyspan_set_termios,
3051 .break_ctl = keyspan_break_ctl,
3052 .tiocmget = keyspan_tiocmget,
3053 .tiocmset = keyspan_tiocmset,
3054 .attach = keyspan_startup,
3055 .disconnect = keyspan_disconnect,
3056 .release = keyspan_release,
3057 .port_probe = keyspan_port_probe,
3058 .port_remove = keyspan_port_remove,
3059};
3060
3061static struct usb_serial_driver keyspan_4port_device = {
3062 .driver = {
3063 .owner = THIS_MODULE,
3064 .name = "keyspan_4",
3065 },
3066 .description = "Keyspan 4 port adapter",
3067 .id_table = keyspan_4port_ids,
3068 .num_ports = 4,
3069 .open = keyspan_open,
3070 .close = keyspan_close,
3071 .dtr_rts = keyspan_dtr_rts,
3072 .write = keyspan_write,
3073 .write_room = keyspan_write_room,
3074 .set_termios = keyspan_set_termios,
3075 .break_ctl = keyspan_break_ctl,
3076 .tiocmget = keyspan_tiocmget,
3077 .tiocmset = keyspan_tiocmset,
3078 .attach = keyspan_startup,
3079 .disconnect = keyspan_disconnect,
3080 .release = keyspan_release,
3081 .port_probe = keyspan_port_probe,
3082 .port_remove = keyspan_port_remove,
3083};
3084
3085static struct usb_serial_driver * const serial_drivers[] = {
3086 &keyspan_pre_device, &keyspan_1port_device,
3087 &keyspan_2port_device, &keyspan_4port_device, NULL
3088};
3089
3090module_usb_serial_driver(serial_drivers, keyspan_ids_combined);
3091
3092MODULE_AUTHOR(DRIVER_AUTHOR);
3093MODULE_DESCRIPTION(DRIVER_DESC);
3094MODULE_LICENSE("GPL");
3095
3096MODULE_FIRMWARE("keyspan/usa28.fw");
3097MODULE_FIRMWARE("keyspan/usa28x.fw");
3098MODULE_FIRMWARE("keyspan/usa28xa.fw");
3099MODULE_FIRMWARE("keyspan/usa28xb.fw");
3100MODULE_FIRMWARE("keyspan/usa19.fw");
3101MODULE_FIRMWARE("keyspan/usa19qi.fw");
3102MODULE_FIRMWARE("keyspan/mpr.fw");
3103MODULE_FIRMWARE("keyspan/usa19qw.fw");
3104MODULE_FIRMWARE("keyspan/usa18x.fw");
3105MODULE_FIRMWARE("keyspan/usa19w.fw");
3106MODULE_FIRMWARE("keyspan/usa49w.fw");
3107MODULE_FIRMWARE("keyspan/usa49wlc.fw");