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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 data = urb->transfer_buffer;
925
926 if (urb != p_priv->in_urbs[p_priv->in_flip])
927 return;
928
929 do {
930 if (status) {
931 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
932 __func__, status, usb_pipeendpoint(urb->pipe));
933 return;
934 }
935
936 port = urb->context;
937 p_priv = usb_get_serial_port_data(port);
938 data = urb->transfer_buffer;
939
940 if (urb->actual_length) {
941 tty_insert_flip_string(&port->port, data,
942 urb->actual_length);
943 tty_flip_buffer_push(&port->port);
944 }
945
946 /* Resubmit urb so we continue receiving */
947 err = usb_submit_urb(urb, GFP_ATOMIC);
948 if (err != 0)
949 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
950 __func__, err);
951 p_priv->in_flip ^= 1;
952
953 urb = p_priv->in_urbs[p_priv->in_flip];
954 } while (urb->status != -EINPROGRESS);
955}
956
957static void usa28_inack_callback(struct urb *urb)
958{
959}
960
961static void usa28_outcont_callback(struct urb *urb)
962{
963 struct usb_serial_port *port;
964 struct keyspan_port_private *p_priv;
965
966 port = urb->context;
967 p_priv = usb_get_serial_port_data(port);
968
969 if (p_priv->resend_cont) {
970 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
971 keyspan_usa28_send_setup(port->serial, port,
972 p_priv->resend_cont - 1);
973 }
974}
975
976static void usa28_instat_callback(struct urb *urb)
977{
978 int err;
979 unsigned char *data = urb->transfer_buffer;
980 struct keyspan_usa28_portStatusMessage *msg;
981 struct usb_serial *serial;
982 struct usb_serial_port *port;
983 struct keyspan_port_private *p_priv;
984 int old_dcd_state;
985 int status = urb->status;
986
987 serial = urb->context;
988
989 if (status) {
990 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
991 __func__, status);
992 return;
993 }
994
995 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
996 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
997 goto exit;
998 }
999
1000 msg = (struct keyspan_usa28_portStatusMessage *)data;
1001
1002 /* Check port number from message and retrieve private data */
1003 if (msg->port >= serial->num_ports) {
1004 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1005 goto exit;
1006 }
1007 port = serial->port[msg->port];
1008 p_priv = usb_get_serial_port_data(port);
1009 if (!p_priv)
1010 goto resubmit;
1011
1012 /* Update handshaking pin state information */
1013 old_dcd_state = p_priv->dcd_state;
1014 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1015 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1016 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1017 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1018
1019 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1020 tty_port_tty_hangup(&port->port, true);
1021resubmit:
1022 /* Resubmit urb so we continue receiving */
1023 err = usb_submit_urb(urb, GFP_ATOMIC);
1024 if (err != 0)
1025 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1026exit: ;
1027}
1028
1029static void usa28_glocont_callback(struct urb *urb)
1030{
1031}
1032
1033
1034static void usa49_glocont_callback(struct urb *urb)
1035{
1036 struct usb_serial *serial;
1037 struct usb_serial_port *port;
1038 struct keyspan_port_private *p_priv;
1039 int i;
1040
1041 serial = urb->context;
1042 for (i = 0; i < serial->num_ports; ++i) {
1043 port = serial->port[i];
1044 p_priv = usb_get_serial_port_data(port);
1045 if (!p_priv)
1046 continue;
1047
1048 if (p_priv->resend_cont) {
1049 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1050 keyspan_usa49_send_setup(serial, port,
1051 p_priv->resend_cont - 1);
1052 break;
1053 }
1054 }
1055}
1056
1057 /* This is actually called glostat in the Keyspan
1058 doco */
1059static void usa49_instat_callback(struct urb *urb)
1060{
1061 int err;
1062 unsigned char *data = urb->transfer_buffer;
1063 struct keyspan_usa49_portStatusMessage *msg;
1064 struct usb_serial *serial;
1065 struct usb_serial_port *port;
1066 struct keyspan_port_private *p_priv;
1067 int old_dcd_state;
1068 int status = urb->status;
1069
1070 serial = urb->context;
1071
1072 if (status) {
1073 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1074 __func__, status);
1075 return;
1076 }
1077
1078 if (urb->actual_length !=
1079 sizeof(struct keyspan_usa49_portStatusMessage)) {
1080 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1081 goto exit;
1082 }
1083
1084 msg = (struct keyspan_usa49_portStatusMessage *)data;
1085
1086 /* Check port number from message and retrieve private data */
1087 if (msg->portNumber >= serial->num_ports) {
1088 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1089 __func__, msg->portNumber);
1090 goto exit;
1091 }
1092 port = serial->port[msg->portNumber];
1093 p_priv = usb_get_serial_port_data(port);
1094 if (!p_priv)
1095 goto resubmit;
1096
1097 /* Update handshaking pin state information */
1098 old_dcd_state = p_priv->dcd_state;
1099 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1100 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1101 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1102 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1103
1104 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1105 tty_port_tty_hangup(&port->port, true);
1106resubmit:
1107 /* Resubmit urb so we continue receiving */
1108 err = usb_submit_urb(urb, GFP_ATOMIC);
1109 if (err != 0)
1110 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1111exit: ;
1112}
1113
1114static void usa49_inack_callback(struct urb *urb)
1115{
1116}
1117
1118static void usa49_indat_callback(struct urb *urb)
1119{
1120 int i, err;
1121 int endpoint;
1122 struct usb_serial_port *port;
1123 unsigned char *data = urb->transfer_buffer;
1124 int status = urb->status;
1125
1126 endpoint = usb_pipeendpoint(urb->pipe);
1127
1128 if (status) {
1129 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1130 __func__, status, endpoint);
1131 return;
1132 }
1133
1134 port = urb->context;
1135 if (urb->actual_length) {
1136 /* 0x80 bit is error flag */
1137 if ((data[0] & 0x80) == 0) {
1138 /* no error on any byte */
1139 tty_insert_flip_string(&port->port, data + 1,
1140 urb->actual_length - 1);
1141 } else {
1142 /* some bytes had errors, every byte has status */
1143 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1144 int stat = data[i];
1145 int flag = TTY_NORMAL;
1146
1147 if (stat & RXERROR_OVERRUN) {
1148 tty_insert_flip_char(&port->port, 0,
1149 TTY_OVERRUN);
1150 }
1151 /* XXX should handle break (0x10) */
1152 if (stat & RXERROR_PARITY)
1153 flag = TTY_PARITY;
1154 else if (stat & RXERROR_FRAMING)
1155 flag = TTY_FRAME;
1156
1157 tty_insert_flip_char(&port->port, data[i+1],
1158 flag);
1159 }
1160 }
1161 tty_flip_buffer_push(&port->port);
1162 }
1163
1164 /* Resubmit urb so we continue receiving */
1165 err = usb_submit_urb(urb, GFP_ATOMIC);
1166 if (err != 0)
1167 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1168}
1169
1170static void usa49wg_indat_callback(struct urb *urb)
1171{
1172 int i, len, x, err;
1173 struct usb_serial *serial;
1174 struct usb_serial_port *port;
1175 unsigned char *data = urb->transfer_buffer;
1176 int status = urb->status;
1177
1178 serial = urb->context;
1179
1180 if (status) {
1181 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1182 __func__, status);
1183 return;
1184 }
1185
1186 /* inbound data is in the form P#, len, status, data */
1187 i = 0;
1188 len = 0;
1189
1190 while (i < urb->actual_length) {
1191
1192 /* Check port number from message */
1193 if (data[i] >= serial->num_ports) {
1194 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1195 __func__, data[i]);
1196 return;
1197 }
1198 port = serial->port[data[i++]];
1199 len = data[i++];
1200
1201 /* 0x80 bit is error flag */
1202 if ((data[i] & 0x80) == 0) {
1203 /* no error on any byte */
1204 i++;
1205 for (x = 1; x < len && i < urb->actual_length; ++x)
1206 tty_insert_flip_char(&port->port,
1207 data[i++], 0);
1208 } else {
1209 /*
1210 * some bytes had errors, every byte has status
1211 */
1212 for (x = 0; x + 1 < len &&
1213 i + 1 < urb->actual_length; x += 2) {
1214 int stat = data[i];
1215 int flag = TTY_NORMAL;
1216
1217 if (stat & RXERROR_OVERRUN) {
1218 tty_insert_flip_char(&port->port, 0,
1219 TTY_OVERRUN);
1220 }
1221 /* XXX should handle break (0x10) */
1222 if (stat & RXERROR_PARITY)
1223 flag = TTY_PARITY;
1224 else if (stat & RXERROR_FRAMING)
1225 flag = TTY_FRAME;
1226
1227 tty_insert_flip_char(&port->port, data[i+1],
1228 flag);
1229 i += 2;
1230 }
1231 }
1232 tty_flip_buffer_push(&port->port);
1233 }
1234
1235 /* Resubmit urb so we continue receiving */
1236 err = usb_submit_urb(urb, GFP_ATOMIC);
1237 if (err != 0)
1238 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1239}
1240
1241/* not used, usa-49 doesn't have per-port control endpoints */
1242static void usa49_outcont_callback(struct urb *urb)
1243{
1244}
1245
1246static void usa90_indat_callback(struct urb *urb)
1247{
1248 int i, err;
1249 int endpoint;
1250 struct usb_serial_port *port;
1251 struct keyspan_port_private *p_priv;
1252 unsigned char *data = urb->transfer_buffer;
1253 int status = urb->status;
1254
1255 endpoint = usb_pipeendpoint(urb->pipe);
1256
1257 if (status) {
1258 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1259 __func__, status, endpoint);
1260 return;
1261 }
1262
1263 port = urb->context;
1264 p_priv = usb_get_serial_port_data(port);
1265
1266 if (urb->actual_length) {
1267 /* if current mode is DMA, looks like usa28 format
1268 otherwise looks like usa26 data format */
1269
1270 if (p_priv->baud > 57600)
1271 tty_insert_flip_string(&port->port, data,
1272 urb->actual_length);
1273 else {
1274 /* 0x80 bit is error flag */
1275 if ((data[0] & 0x80) == 0) {
1276 /* no errors on individual bytes, only
1277 possible overrun err*/
1278 if (data[0] & RXERROR_OVERRUN) {
1279 tty_insert_flip_char(&port->port, 0,
1280 TTY_OVERRUN);
1281 }
1282 for (i = 1; i < urb->actual_length ; ++i)
1283 tty_insert_flip_char(&port->port,
1284 data[i], TTY_NORMAL);
1285 } else {
1286 /* some bytes had errors, every byte has status */
1287 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1288 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1289 int stat = data[i];
1290 int flag = TTY_NORMAL;
1291
1292 if (stat & RXERROR_OVERRUN) {
1293 tty_insert_flip_char(
1294 &port->port, 0,
1295 TTY_OVERRUN);
1296 }
1297 /* XXX should handle break (0x10) */
1298 if (stat & RXERROR_PARITY)
1299 flag = TTY_PARITY;
1300 else if (stat & RXERROR_FRAMING)
1301 flag = TTY_FRAME;
1302
1303 tty_insert_flip_char(&port->port,
1304 data[i+1], flag);
1305 }
1306 }
1307 }
1308 tty_flip_buffer_push(&port->port);
1309 }
1310
1311 /* Resubmit urb so we continue receiving */
1312 err = usb_submit_urb(urb, GFP_ATOMIC);
1313 if (err != 0)
1314 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1315}
1316
1317
1318static void usa90_instat_callback(struct urb *urb)
1319{
1320 unsigned char *data = urb->transfer_buffer;
1321 struct keyspan_usa90_portStatusMessage *msg;
1322 struct usb_serial *serial;
1323 struct usb_serial_port *port;
1324 struct keyspan_port_private *p_priv;
1325 int old_dcd_state, err;
1326 int status = urb->status;
1327
1328 serial = urb->context;
1329
1330 if (status) {
1331 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1332 __func__, status);
1333 return;
1334 }
1335 if (urb->actual_length < 14) {
1336 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1337 goto exit;
1338 }
1339
1340 msg = (struct keyspan_usa90_portStatusMessage *)data;
1341
1342 /* Now do something useful with the data */
1343
1344 port = serial->port[0];
1345 p_priv = usb_get_serial_port_data(port);
1346 if (!p_priv)
1347 goto resubmit;
1348
1349 /* Update handshaking pin state information */
1350 old_dcd_state = p_priv->dcd_state;
1351 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1352 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1353 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1354 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1355
1356 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1357 tty_port_tty_hangup(&port->port, true);
1358resubmit:
1359 /* Resubmit urb so we continue receiving */
1360 err = usb_submit_urb(urb, GFP_ATOMIC);
1361 if (err != 0)
1362 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1363exit:
1364 ;
1365}
1366
1367static void usa90_outcont_callback(struct urb *urb)
1368{
1369 struct usb_serial_port *port;
1370 struct keyspan_port_private *p_priv;
1371
1372 port = urb->context;
1373 p_priv = usb_get_serial_port_data(port);
1374
1375 if (p_priv->resend_cont) {
1376 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
1377 keyspan_usa90_send_setup(port->serial, port,
1378 p_priv->resend_cont - 1);
1379 }
1380}
1381
1382/* Status messages from the 28xg */
1383static void usa67_instat_callback(struct urb *urb)
1384{
1385 int err;
1386 unsigned char *data = urb->transfer_buffer;
1387 struct keyspan_usa67_portStatusMessage *msg;
1388 struct usb_serial *serial;
1389 struct usb_serial_port *port;
1390 struct keyspan_port_private *p_priv;
1391 int old_dcd_state;
1392 int status = urb->status;
1393
1394 serial = urb->context;
1395
1396 if (status) {
1397 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1398 __func__, status);
1399 return;
1400 }
1401
1402 if (urb->actual_length !=
1403 sizeof(struct keyspan_usa67_portStatusMessage)) {
1404 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1405 return;
1406 }
1407
1408
1409 /* Now do something useful with the data */
1410 msg = (struct keyspan_usa67_portStatusMessage *)data;
1411
1412 /* Check port number from message and retrieve private data */
1413 if (msg->port >= serial->num_ports) {
1414 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1415 return;
1416 }
1417
1418 port = serial->port[msg->port];
1419 p_priv = usb_get_serial_port_data(port);
1420 if (!p_priv)
1421 goto resubmit;
1422
1423 /* Update handshaking pin state information */
1424 old_dcd_state = p_priv->dcd_state;
1425 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1426 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1427
1428 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1429 tty_port_tty_hangup(&port->port, true);
1430resubmit:
1431 /* Resubmit urb so we continue receiving */
1432 err = usb_submit_urb(urb, GFP_ATOMIC);
1433 if (err != 0)
1434 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1435}
1436
1437static void usa67_glocont_callback(struct urb *urb)
1438{
1439 struct usb_serial *serial;
1440 struct usb_serial_port *port;
1441 struct keyspan_port_private *p_priv;
1442 int i;
1443
1444 serial = urb->context;
1445 for (i = 0; i < serial->num_ports; ++i) {
1446 port = serial->port[i];
1447 p_priv = usb_get_serial_port_data(port);
1448 if (!p_priv)
1449 continue;
1450
1451 if (p_priv->resend_cont) {
1452 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1453 keyspan_usa67_send_setup(serial, port,
1454 p_priv->resend_cont - 1);
1455 break;
1456 }
1457 }
1458}
1459
1460static unsigned int keyspan_write_room(struct tty_struct *tty)
1461{
1462 struct usb_serial_port *port = tty->driver_data;
1463 struct keyspan_port_private *p_priv;
1464 const struct keyspan_device_details *d_details;
1465 int flip;
1466 unsigned int data_len;
1467 struct urb *this_urb;
1468
1469 p_priv = usb_get_serial_port_data(port);
1470 d_details = p_priv->device_details;
1471
1472 /* FIXME: locking */
1473 if (d_details->msg_format == msg_usa90)
1474 data_len = 64;
1475 else
1476 data_len = 63;
1477
1478 flip = p_priv->out_flip;
1479
1480 /* Check both endpoints to see if any are available. */
1481 this_urb = p_priv->out_urbs[flip];
1482 if (this_urb != NULL) {
1483 if (this_urb->status != -EINPROGRESS)
1484 return data_len;
1485 flip = (flip + 1) & d_details->outdat_endp_flip;
1486 this_urb = p_priv->out_urbs[flip];
1487 if (this_urb != NULL) {
1488 if (this_urb->status != -EINPROGRESS)
1489 return data_len;
1490 }
1491 }
1492 return 0;
1493}
1494
1495
1496static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1497{
1498 struct keyspan_port_private *p_priv;
1499 const struct keyspan_device_details *d_details;
1500 int i, err;
1501 int baud_rate, device_port;
1502 struct urb *urb;
1503 unsigned int cflag = 0;
1504
1505 p_priv = usb_get_serial_port_data(port);
1506 d_details = p_priv->device_details;
1507
1508 /* Set some sane defaults */
1509 p_priv->rts_state = 1;
1510 p_priv->dtr_state = 1;
1511 p_priv->baud = 9600;
1512
1513 /* force baud and lcr to be set on open */
1514 p_priv->old_baud = 0;
1515 p_priv->old_cflag = 0;
1516
1517 p_priv->out_flip = 0;
1518 p_priv->in_flip = 0;
1519
1520 /* Reset low level data toggle and start reading from endpoints */
1521 for (i = 0; i < 2; i++) {
1522 urb = p_priv->in_urbs[i];
1523 if (urb == NULL)
1524 continue;
1525
1526 /* make sure endpoint data toggle is synchronized
1527 with the device */
1528 usb_clear_halt(urb->dev, urb->pipe);
1529 err = usb_submit_urb(urb, GFP_KERNEL);
1530 if (err != 0)
1531 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
1532 }
1533
1534 /* Reset low level data toggle on out endpoints */
1535 for (i = 0; i < 2; i++) {
1536 urb = p_priv->out_urbs[i];
1537 if (urb == NULL)
1538 continue;
1539 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1540 usb_pipeout(urb->pipe), 0); */
1541 }
1542
1543 /* get the terminal config for the setup message now so we don't
1544 * need to send 2 of them */
1545
1546 device_port = port->port_number;
1547 if (tty) {
1548 cflag = tty->termios.c_cflag;
1549 /* Baud rate calculation takes baud rate as an integer
1550 so other rates can be generated if desired. */
1551 baud_rate = tty_get_baud_rate(tty);
1552 /* If no match or invalid, leave as default */
1553 if (baud_rate >= 0
1554 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
1555 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1556 p_priv->baud = baud_rate;
1557 }
1558 }
1559 /* set CTS/RTS handshake etc. */
1560 p_priv->cflag = cflag;
1561 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
1562
1563 keyspan_send_setup(port, 1);
1564 /* mdelay(100); */
1565 /* keyspan_set_termios(port, NULL); */
1566
1567 return 0;
1568}
1569
1570static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1571{
1572 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1573
1574 p_priv->rts_state = on;
1575 p_priv->dtr_state = on;
1576 keyspan_send_setup(port, 0);
1577}
1578
1579static void keyspan_close(struct usb_serial_port *port)
1580{
1581 int i;
1582 struct keyspan_port_private *p_priv;
1583
1584 p_priv = usb_get_serial_port_data(port);
1585
1586 p_priv->rts_state = 0;
1587 p_priv->dtr_state = 0;
1588
1589 keyspan_send_setup(port, 2);
1590 /* pilot-xfer seems to work best with this delay */
1591 mdelay(100);
1592
1593 p_priv->out_flip = 0;
1594 p_priv->in_flip = 0;
1595
1596 usb_kill_urb(p_priv->inack_urb);
1597 for (i = 0; i < 2; i++) {
1598 usb_kill_urb(p_priv->in_urbs[i]);
1599 usb_kill_urb(p_priv->out_urbs[i]);
1600 }
1601}
1602
1603/* download the firmware to a pre-renumeration device */
1604static int keyspan_fake_startup(struct usb_serial *serial)
1605{
1606 char *fw_name;
1607
1608 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
1609 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1610 le16_to_cpu(serial->dev->descriptor.idProduct));
1611
1612 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1613 != 0x8000) {
1614 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n");
1615 return 1;
1616 }
1617
1618 /* Select firmware image on the basis of idProduct */
1619 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1620 case keyspan_usa28_pre_product_id:
1621 fw_name = "keyspan/usa28.fw";
1622 break;
1623
1624 case keyspan_usa28x_pre_product_id:
1625 fw_name = "keyspan/usa28x.fw";
1626 break;
1627
1628 case keyspan_usa28xa_pre_product_id:
1629 fw_name = "keyspan/usa28xa.fw";
1630 break;
1631
1632 case keyspan_usa28xb_pre_product_id:
1633 fw_name = "keyspan/usa28xb.fw";
1634 break;
1635
1636 case keyspan_usa19_pre_product_id:
1637 fw_name = "keyspan/usa19.fw";
1638 break;
1639
1640 case keyspan_usa19qi_pre_product_id:
1641 fw_name = "keyspan/usa19qi.fw";
1642 break;
1643
1644 case keyspan_mpr_pre_product_id:
1645 fw_name = "keyspan/mpr.fw";
1646 break;
1647
1648 case keyspan_usa19qw_pre_product_id:
1649 fw_name = "keyspan/usa19qw.fw";
1650 break;
1651
1652 case keyspan_usa18x_pre_product_id:
1653 fw_name = "keyspan/usa18x.fw";
1654 break;
1655
1656 case keyspan_usa19w_pre_product_id:
1657 fw_name = "keyspan/usa19w.fw";
1658 break;
1659
1660 case keyspan_usa49w_pre_product_id:
1661 fw_name = "keyspan/usa49w.fw";
1662 break;
1663
1664 case keyspan_usa49wlc_pre_product_id:
1665 fw_name = "keyspan/usa49wlc.fw";
1666 break;
1667
1668 default:
1669 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1670 le16_to_cpu(serial->dev->descriptor.idProduct));
1671 return 1;
1672 }
1673
1674 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
1675
1676 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
1677 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
1678 fw_name);
1679 return -ENOENT;
1680 }
1681
1682 /* after downloading firmware Renumeration will occur in a
1683 moment and the new device will bind to the real driver */
1684
1685 /* we don't want this device to have a driver assigned to it. */
1686 return 1;
1687}
1688
1689/* Helper functions used by keyspan_setup_urbs */
1690static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1691 int endpoint)
1692{
1693 struct usb_host_interface *iface_desc;
1694 struct usb_endpoint_descriptor *ep;
1695 int i;
1696
1697 iface_desc = serial->interface->cur_altsetting;
1698 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1699 ep = &iface_desc->endpoint[i].desc;
1700 if (ep->bEndpointAddress == endpoint)
1701 return ep;
1702 }
1703 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n",
1704 endpoint);
1705 return NULL;
1706}
1707
1708static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1709 int dir, void *ctx, char *buf, int len,
1710 void (*callback)(struct urb *))
1711{
1712 struct urb *urb;
1713 struct usb_endpoint_descriptor const *ep_desc;
1714 char const *ep_type_name;
1715
1716 if (endpoint == -1)
1717 return NULL; /* endpoint not needed */
1718
1719 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n",
1720 __func__, endpoint);
1721 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1722 if (!urb)
1723 return NULL;
1724
1725 if (endpoint == 0) {
1726 /* control EP filled in when used */
1727 return urb;
1728 }
1729
1730 ep_desc = find_ep(serial, endpoint);
1731 if (!ep_desc) {
1732 usb_free_urb(urb);
1733 return NULL;
1734 }
1735 if (usb_endpoint_xfer_int(ep_desc)) {
1736 ep_type_name = "INT";
1737 usb_fill_int_urb(urb, serial->dev,
1738 usb_sndintpipe(serial->dev, endpoint) | dir,
1739 buf, len, callback, ctx,
1740 ep_desc->bInterval);
1741 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1742 ep_type_name = "BULK";
1743 usb_fill_bulk_urb(urb, serial->dev,
1744 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1745 buf, len, callback, ctx);
1746 } else {
1747 dev_warn(&serial->interface->dev,
1748 "unsupported endpoint type %x\n",
1749 usb_endpoint_type(ep_desc));
1750 usb_free_urb(urb);
1751 return NULL;
1752 }
1753
1754 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
1755 __func__, urb, ep_type_name, endpoint);
1756 return urb;
1757}
1758
1759static struct callbacks {
1760 void (*instat_callback)(struct urb *);
1761 void (*glocont_callback)(struct urb *);
1762 void (*indat_callback)(struct urb *);
1763 void (*outdat_callback)(struct urb *);
1764 void (*inack_callback)(struct urb *);
1765 void (*outcont_callback)(struct urb *);
1766} keyspan_callbacks[] = {
1767 {
1768 /* msg_usa26 callbacks */
1769 .instat_callback = usa26_instat_callback,
1770 .glocont_callback = usa26_glocont_callback,
1771 .indat_callback = usa26_indat_callback,
1772 .outdat_callback = usa2x_outdat_callback,
1773 .inack_callback = usa26_inack_callback,
1774 .outcont_callback = usa26_outcont_callback,
1775 }, {
1776 /* msg_usa28 callbacks */
1777 .instat_callback = usa28_instat_callback,
1778 .glocont_callback = usa28_glocont_callback,
1779 .indat_callback = usa28_indat_callback,
1780 .outdat_callback = usa2x_outdat_callback,
1781 .inack_callback = usa28_inack_callback,
1782 .outcont_callback = usa28_outcont_callback,
1783 }, {
1784 /* msg_usa49 callbacks */
1785 .instat_callback = usa49_instat_callback,
1786 .glocont_callback = usa49_glocont_callback,
1787 .indat_callback = usa49_indat_callback,
1788 .outdat_callback = usa2x_outdat_callback,
1789 .inack_callback = usa49_inack_callback,
1790 .outcont_callback = usa49_outcont_callback,
1791 }, {
1792 /* msg_usa90 callbacks */
1793 .instat_callback = usa90_instat_callback,
1794 .glocont_callback = usa28_glocont_callback,
1795 .indat_callback = usa90_indat_callback,
1796 .outdat_callback = usa2x_outdat_callback,
1797 .inack_callback = usa28_inack_callback,
1798 .outcont_callback = usa90_outcont_callback,
1799 }, {
1800 /* msg_usa67 callbacks */
1801 .instat_callback = usa67_instat_callback,
1802 .glocont_callback = usa67_glocont_callback,
1803 .indat_callback = usa26_indat_callback,
1804 .outdat_callback = usa2x_outdat_callback,
1805 .inack_callback = usa26_inack_callback,
1806 .outcont_callback = usa26_outcont_callback,
1807 }
1808};
1809
1810 /* Generic setup urbs function that uses
1811 data in device_details */
1812static void keyspan_setup_urbs(struct usb_serial *serial)
1813{
1814 struct keyspan_serial_private *s_priv;
1815 const struct keyspan_device_details *d_details;
1816 struct callbacks *cback;
1817
1818 s_priv = usb_get_serial_data(serial);
1819 d_details = s_priv->device_details;
1820
1821 /* Setup values for the various callback routines */
1822 cback = &keyspan_callbacks[d_details->msg_format];
1823
1824 /* Allocate and set up urbs for each one that is in use,
1825 starting with instat endpoints */
1826 s_priv->instat_urb = keyspan_setup_urb
1827 (serial, d_details->instat_endpoint, USB_DIR_IN,
1828 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1829 cback->instat_callback);
1830
1831 s_priv->indat_urb = keyspan_setup_urb
1832 (serial, d_details->indat_endpoint, USB_DIR_IN,
1833 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1834 usa49wg_indat_callback);
1835
1836 s_priv->glocont_urb = keyspan_setup_urb
1837 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1838 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1839 cback->glocont_callback);
1840}
1841
1842/* usa19 function doesn't require prescaler */
1843static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
1844 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1845 u8 *rate_low, u8 *prescaler, int portnum)
1846{
1847 u32 b16, /* baud rate times 16 (actual rate used internally) */
1848 div, /* divisor */
1849 cnt; /* inverse of divisor (programmed into 8051) */
1850
1851 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1852
1853 /* prevent divide by zero... */
1854 b16 = baud_rate * 16L;
1855 if (b16 == 0)
1856 return KEYSPAN_INVALID_BAUD_RATE;
1857 /* Any "standard" rate over 57k6 is marginal on the USA-19
1858 as we run out of divisor resolution. */
1859 if (baud_rate > 57600)
1860 return KEYSPAN_INVALID_BAUD_RATE;
1861
1862 /* calculate the divisor and the counter (its inverse) */
1863 div = baudclk / b16;
1864 if (div == 0)
1865 return KEYSPAN_INVALID_BAUD_RATE;
1866 else
1867 cnt = 0 - div;
1868
1869 if (div > 0xffff)
1870 return KEYSPAN_INVALID_BAUD_RATE;
1871
1872 /* return the counter values if non-null */
1873 if (rate_low)
1874 *rate_low = (u8) (cnt & 0xff);
1875 if (rate_hi)
1876 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1877 if (rate_low && rate_hi)
1878 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1879 __func__, baud_rate, *rate_hi, *rate_low);
1880 return KEYSPAN_BAUD_RATE_OK;
1881}
1882
1883/* usa19hs function doesn't require prescaler */
1884static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
1885 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1886 u8 *rate_low, u8 *prescaler, int portnum)
1887{
1888 u32 b16, /* baud rate times 16 (actual rate used internally) */
1889 div; /* divisor */
1890
1891 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1892
1893 /* prevent divide by zero... */
1894 b16 = baud_rate * 16L;
1895 if (b16 == 0)
1896 return KEYSPAN_INVALID_BAUD_RATE;
1897
1898 /* calculate the divisor */
1899 div = baudclk / b16;
1900 if (div == 0)
1901 return KEYSPAN_INVALID_BAUD_RATE;
1902
1903 if (div > 0xffff)
1904 return KEYSPAN_INVALID_BAUD_RATE;
1905
1906 /* return the counter values if non-null */
1907 if (rate_low)
1908 *rate_low = (u8) (div & 0xff);
1909
1910 if (rate_hi)
1911 *rate_hi = (u8) ((div >> 8) & 0xff);
1912
1913 if (rate_low && rate_hi)
1914 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1915 __func__, baud_rate, *rate_hi, *rate_low);
1916
1917 return KEYSPAN_BAUD_RATE_OK;
1918}
1919
1920static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
1921 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1922 u8 *rate_low, u8 *prescaler, int portnum)
1923{
1924 u32 b16, /* baud rate times 16 (actual rate used internally) */
1925 clk, /* clock with 13/8 prescaler */
1926 div, /* divisor using 13/8 prescaler */
1927 res, /* resulting baud rate using 13/8 prescaler */
1928 diff, /* error using 13/8 prescaler */
1929 smallest_diff;
1930 u8 best_prescaler;
1931 int i;
1932
1933 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1934
1935 /* prevent divide by zero */
1936 b16 = baud_rate * 16L;
1937 if (b16 == 0)
1938 return KEYSPAN_INVALID_BAUD_RATE;
1939
1940 /* Calculate prescaler by trying them all and looking
1941 for best fit */
1942
1943 /* start with largest possible difference */
1944 smallest_diff = 0xffffffff;
1945
1946 /* 0 is an invalid prescaler, used as a flag */
1947 best_prescaler = 0;
1948
1949 for (i = 8; i <= 0xff; ++i) {
1950 clk = (baudclk * 8) / (u32) i;
1951
1952 div = clk / b16;
1953 if (div == 0)
1954 continue;
1955
1956 res = clk / div;
1957 diff = (res > b16) ? (res-b16) : (b16-res);
1958
1959 if (diff < smallest_diff) {
1960 best_prescaler = i;
1961 smallest_diff = diff;
1962 }
1963 }
1964
1965 if (best_prescaler == 0)
1966 return KEYSPAN_INVALID_BAUD_RATE;
1967
1968 clk = (baudclk * 8) / (u32) best_prescaler;
1969 div = clk / b16;
1970
1971 /* return the divisor and prescaler if non-null */
1972 if (rate_low)
1973 *rate_low = (u8) (div & 0xff);
1974 if (rate_hi)
1975 *rate_hi = (u8) ((div >> 8) & 0xff);
1976 if (prescaler) {
1977 *prescaler = best_prescaler;
1978 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
1979 }
1980 return KEYSPAN_BAUD_RATE_OK;
1981}
1982
1983 /* USA-28 supports different maximum baud rates on each port */
1984static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
1985 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1986 u8 *rate_low, u8 *prescaler, int portnum)
1987{
1988 u32 b16, /* baud rate times 16 (actual rate used internally) */
1989 div, /* divisor */
1990 cnt; /* inverse of divisor (programmed into 8051) */
1991
1992 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1993
1994 /* prevent divide by zero */
1995 b16 = baud_rate * 16L;
1996 if (b16 == 0)
1997 return KEYSPAN_INVALID_BAUD_RATE;
1998
1999 /* calculate the divisor and the counter (its inverse) */
2000 div = KEYSPAN_USA28_BAUDCLK / b16;
2001 if (div == 0)
2002 return KEYSPAN_INVALID_BAUD_RATE;
2003 else
2004 cnt = 0 - div;
2005
2006 /* check for out of range, based on portnum,
2007 and return result */
2008 if (portnum == 0) {
2009 if (div > 0xffff)
2010 return KEYSPAN_INVALID_BAUD_RATE;
2011 } else {
2012 if (portnum == 1) {
2013 if (div > 0xff)
2014 return KEYSPAN_INVALID_BAUD_RATE;
2015 } else
2016 return KEYSPAN_INVALID_BAUD_RATE;
2017 }
2018
2019 /* return the counter values if not NULL
2020 (port 1 will ignore retHi) */
2021 if (rate_low)
2022 *rate_low = (u8) (cnt & 0xff);
2023 if (rate_hi)
2024 *rate_hi = (u8) ((cnt >> 8) & 0xff);
2025 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
2026 return KEYSPAN_BAUD_RATE_OK;
2027}
2028
2029static int keyspan_usa26_send_setup(struct usb_serial *serial,
2030 struct usb_serial_port *port,
2031 int reset_port)
2032{
2033 struct keyspan_usa26_portControlMessage msg;
2034 struct keyspan_serial_private *s_priv;
2035 struct keyspan_port_private *p_priv;
2036 const struct keyspan_device_details *d_details;
2037 struct urb *this_urb;
2038 int device_port, err;
2039
2040 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
2041
2042 s_priv = usb_get_serial_data(serial);
2043 p_priv = usb_get_serial_port_data(port);
2044 d_details = s_priv->device_details;
2045 device_port = port->port_number;
2046
2047 this_urb = p_priv->outcont_urb;
2048
2049 /* Make sure we have an urb then send the message */
2050 if (this_urb == NULL) {
2051 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2052 return -1;
2053 }
2054
2055 dev_dbg(&port->dev, "%s - endpoint %x\n",
2056 __func__, usb_pipeendpoint(this_urb->pipe));
2057
2058 /* Save reset port val for resend.
2059 Don't overwrite resend for open/close condition. */
2060 if ((reset_port + 1) > p_priv->resend_cont)
2061 p_priv->resend_cont = reset_port + 1;
2062 if (this_urb->status == -EINPROGRESS) {
2063 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2064 mdelay(5);
2065 return -1;
2066 }
2067
2068 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
2069
2070 /* Only set baud rate if it's changed */
2071 if (p_priv->old_baud != p_priv->baud) {
2072 p_priv->old_baud = p_priv->baud;
2073 msg.setClocking = 0xff;
2074 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2075 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2076 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2077 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2078 __func__, p_priv->baud);
2079 msg.baudLo = 0;
2080 msg.baudHi = 125; /* Values for 9600 baud */
2081 msg.prescaler = 10;
2082 }
2083 msg.setPrescaler = 0xff;
2084 }
2085
2086 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2087 switch (p_priv->cflag & CSIZE) {
2088 case CS5:
2089 msg.lcr |= USA_DATABITS_5;
2090 break;
2091 case CS6:
2092 msg.lcr |= USA_DATABITS_6;
2093 break;
2094 case CS7:
2095 msg.lcr |= USA_DATABITS_7;
2096 break;
2097 case CS8:
2098 msg.lcr |= USA_DATABITS_8;
2099 break;
2100 }
2101 if (p_priv->cflag & PARENB) {
2102 /* note USA_PARITY_NONE == 0 */
2103 msg.lcr |= (p_priv->cflag & PARODD) ?
2104 USA_PARITY_ODD : USA_PARITY_EVEN;
2105 }
2106 msg.setLcr = 0xff;
2107
2108 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2109 msg.xonFlowControl = 0;
2110 msg.setFlowControl = 0xff;
2111 msg.forwardingLength = 16;
2112 msg.xonChar = 17;
2113 msg.xoffChar = 19;
2114
2115 /* Opening port */
2116 if (reset_port == 1) {
2117 msg._txOn = 1;
2118 msg._txOff = 0;
2119 msg.txFlush = 0;
2120 msg.txBreak = 0;
2121 msg.rxOn = 1;
2122 msg.rxOff = 0;
2123 msg.rxFlush = 1;
2124 msg.rxForward = 0;
2125 msg.returnStatus = 0;
2126 msg.resetDataToggle = 0xff;
2127 }
2128
2129 /* Closing port */
2130 else if (reset_port == 2) {
2131 msg._txOn = 0;
2132 msg._txOff = 1;
2133 msg.txFlush = 0;
2134 msg.txBreak = 0;
2135 msg.rxOn = 0;
2136 msg.rxOff = 1;
2137 msg.rxFlush = 1;
2138 msg.rxForward = 0;
2139 msg.returnStatus = 0;
2140 msg.resetDataToggle = 0;
2141 }
2142
2143 /* Sending intermediate configs */
2144 else {
2145 msg._txOn = (!p_priv->break_on);
2146 msg._txOff = 0;
2147 msg.txFlush = 0;
2148 msg.txBreak = (p_priv->break_on);
2149 msg.rxOn = 0;
2150 msg.rxOff = 0;
2151 msg.rxFlush = 0;
2152 msg.rxForward = 0;
2153 msg.returnStatus = 0;
2154 msg.resetDataToggle = 0x0;
2155 }
2156
2157 /* Do handshaking outputs */
2158 msg.setTxTriState_setRts = 0xff;
2159 msg.txTriState_rts = p_priv->rts_state;
2160
2161 msg.setHskoa_setDtr = 0xff;
2162 msg.hskoa_dtr = p_priv->dtr_state;
2163
2164 p_priv->resend_cont = 0;
2165 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2166
2167 /* send the data out the device on control endpoint */
2168 this_urb->transfer_buffer_length = sizeof(msg);
2169
2170 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2171 if (err != 0)
2172 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2173 return 0;
2174}
2175
2176static int keyspan_usa28_send_setup(struct usb_serial *serial,
2177 struct usb_serial_port *port,
2178 int reset_port)
2179{
2180 struct keyspan_usa28_portControlMessage msg;
2181 struct keyspan_serial_private *s_priv;
2182 struct keyspan_port_private *p_priv;
2183 const struct keyspan_device_details *d_details;
2184 struct urb *this_urb;
2185 int device_port, err;
2186
2187 s_priv = usb_get_serial_data(serial);
2188 p_priv = usb_get_serial_port_data(port);
2189 d_details = s_priv->device_details;
2190 device_port = port->port_number;
2191
2192 /* only do something if we have a bulk out endpoint */
2193 this_urb = p_priv->outcont_urb;
2194 if (this_urb == NULL) {
2195 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2196 return -1;
2197 }
2198
2199 /* Save reset port val for resend.
2200 Don't overwrite resend for open/close condition. */
2201 if ((reset_port + 1) > p_priv->resend_cont)
2202 p_priv->resend_cont = reset_port + 1;
2203 if (this_urb->status == -EINPROGRESS) {
2204 dev_dbg(&port->dev, "%s already writing\n", __func__);
2205 mdelay(5);
2206 return -1;
2207 }
2208
2209 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2210
2211 msg.setBaudRate = 1;
2212 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2213 &msg.baudHi, &msg.baudLo, NULL,
2214 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2215 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
2216 __func__, p_priv->baud);
2217 msg.baudLo = 0xff;
2218 msg.baudHi = 0xb2; /* Values for 9600 baud */
2219 }
2220
2221 /* If parity is enabled, we must calculate it ourselves. */
2222 msg.parity = 0; /* XXX for now */
2223
2224 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2225 msg.xonFlowControl = 0;
2226
2227 /* Do handshaking outputs, DTR is inverted relative to RTS */
2228 msg.rts = p_priv->rts_state;
2229 msg.dtr = p_priv->dtr_state;
2230
2231 msg.forwardingLength = 16;
2232 msg.forwardMs = 10;
2233 msg.breakThreshold = 45;
2234 msg.xonChar = 17;
2235 msg.xoffChar = 19;
2236
2237 /*msg.returnStatus = 1;
2238 msg.resetDataToggle = 0xff;*/
2239 /* Opening port */
2240 if (reset_port == 1) {
2241 msg._txOn = 1;
2242 msg._txOff = 0;
2243 msg.txFlush = 0;
2244 msg.txForceXoff = 0;
2245 msg.txBreak = 0;
2246 msg.rxOn = 1;
2247 msg.rxOff = 0;
2248 msg.rxFlush = 1;
2249 msg.rxForward = 0;
2250 msg.returnStatus = 0;
2251 msg.resetDataToggle = 0xff;
2252 }
2253 /* Closing port */
2254 else if (reset_port == 2) {
2255 msg._txOn = 0;
2256 msg._txOff = 1;
2257 msg.txFlush = 0;
2258 msg.txForceXoff = 0;
2259 msg.txBreak = 0;
2260 msg.rxOn = 0;
2261 msg.rxOff = 1;
2262 msg.rxFlush = 1;
2263 msg.rxForward = 0;
2264 msg.returnStatus = 0;
2265 msg.resetDataToggle = 0;
2266 }
2267 /* Sending intermediate configs */
2268 else {
2269 msg._txOn = (!p_priv->break_on);
2270 msg._txOff = 0;
2271 msg.txFlush = 0;
2272 msg.txForceXoff = 0;
2273 msg.txBreak = (p_priv->break_on);
2274 msg.rxOn = 0;
2275 msg.rxOff = 0;
2276 msg.rxFlush = 0;
2277 msg.rxForward = 0;
2278 msg.returnStatus = 0;
2279 msg.resetDataToggle = 0x0;
2280 }
2281
2282 p_priv->resend_cont = 0;
2283 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2284
2285 /* send the data out the device on control endpoint */
2286 this_urb->transfer_buffer_length = sizeof(msg);
2287
2288 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2289 if (err != 0)
2290 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
2291
2292 return 0;
2293}
2294
2295static int keyspan_usa49_send_setup(struct usb_serial *serial,
2296 struct usb_serial_port *port,
2297 int reset_port)
2298{
2299 struct keyspan_usa49_portControlMessage msg;
2300 struct usb_ctrlrequest *dr = NULL;
2301 struct keyspan_serial_private *s_priv;
2302 struct keyspan_port_private *p_priv;
2303 const struct keyspan_device_details *d_details;
2304 struct urb *this_urb;
2305 int err, device_port;
2306
2307 s_priv = usb_get_serial_data(serial);
2308 p_priv = usb_get_serial_port_data(port);
2309 d_details = s_priv->device_details;
2310
2311 this_urb = s_priv->glocont_urb;
2312
2313 /* Work out which port within the device is being setup */
2314 device_port = port->port_number;
2315
2316 /* Make sure we have an urb then send the message */
2317 if (this_urb == NULL) {
2318 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2319 return -1;
2320 }
2321
2322 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n",
2323 __func__, usb_pipeendpoint(this_urb->pipe), device_port);
2324
2325 /* Save reset port val for resend.
2326 Don't overwrite resend for open/close condition. */
2327 if ((reset_port + 1) > p_priv->resend_cont)
2328 p_priv->resend_cont = reset_port + 1;
2329
2330 if (this_urb->status == -EINPROGRESS) {
2331 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2332 mdelay(5);
2333 return -1;
2334 }
2335
2336 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2337
2338 msg.portNumber = device_port;
2339
2340 /* Only set baud rate if it's changed */
2341 if (p_priv->old_baud != p_priv->baud) {
2342 p_priv->old_baud = p_priv->baud;
2343 msg.setClocking = 0xff;
2344 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2345 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2346 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2347 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2348 __func__, p_priv->baud);
2349 msg.baudLo = 0;
2350 msg.baudHi = 125; /* Values for 9600 baud */
2351 msg.prescaler = 10;
2352 }
2353 /* msg.setPrescaler = 0xff; */
2354 }
2355
2356 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2357 switch (p_priv->cflag & CSIZE) {
2358 case CS5:
2359 msg.lcr |= USA_DATABITS_5;
2360 break;
2361 case CS6:
2362 msg.lcr |= USA_DATABITS_6;
2363 break;
2364 case CS7:
2365 msg.lcr |= USA_DATABITS_7;
2366 break;
2367 case CS8:
2368 msg.lcr |= USA_DATABITS_8;
2369 break;
2370 }
2371 if (p_priv->cflag & PARENB) {
2372 /* note USA_PARITY_NONE == 0 */
2373 msg.lcr |= (p_priv->cflag & PARODD) ?
2374 USA_PARITY_ODD : USA_PARITY_EVEN;
2375 }
2376 msg.setLcr = 0xff;
2377
2378 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2379 msg.xonFlowControl = 0;
2380 msg.setFlowControl = 0xff;
2381
2382 msg.forwardingLength = 16;
2383 msg.xonChar = 17;
2384 msg.xoffChar = 19;
2385
2386 /* Opening port */
2387 if (reset_port == 1) {
2388 msg._txOn = 1;
2389 msg._txOff = 0;
2390 msg.txFlush = 0;
2391 msg.txBreak = 0;
2392 msg.rxOn = 1;
2393 msg.rxOff = 0;
2394 msg.rxFlush = 1;
2395 msg.rxForward = 0;
2396 msg.returnStatus = 0;
2397 msg.resetDataToggle = 0xff;
2398 msg.enablePort = 1;
2399 msg.disablePort = 0;
2400 }
2401 /* Closing port */
2402 else if (reset_port == 2) {
2403 msg._txOn = 0;
2404 msg._txOff = 1;
2405 msg.txFlush = 0;
2406 msg.txBreak = 0;
2407 msg.rxOn = 0;
2408 msg.rxOff = 1;
2409 msg.rxFlush = 1;
2410 msg.rxForward = 0;
2411 msg.returnStatus = 0;
2412 msg.resetDataToggle = 0;
2413 msg.enablePort = 0;
2414 msg.disablePort = 1;
2415 }
2416 /* Sending intermediate configs */
2417 else {
2418 msg._txOn = (!p_priv->break_on);
2419 msg._txOff = 0;
2420 msg.txFlush = 0;
2421 msg.txBreak = (p_priv->break_on);
2422 msg.rxOn = 0;
2423 msg.rxOff = 0;
2424 msg.rxFlush = 0;
2425 msg.rxForward = 0;
2426 msg.returnStatus = 0;
2427 msg.resetDataToggle = 0x0;
2428 msg.enablePort = 0;
2429 msg.disablePort = 0;
2430 }
2431
2432 /* Do handshaking outputs */
2433 msg.setRts = 0xff;
2434 msg.rts = p_priv->rts_state;
2435
2436 msg.setDtr = 0xff;
2437 msg.dtr = p_priv->dtr_state;
2438
2439 p_priv->resend_cont = 0;
2440
2441 /* if the device is a 49wg, we send control message on usb
2442 control EP 0 */
2443
2444 if (d_details->product_id == keyspan_usa49wg_product_id) {
2445 dr = (void *)(s_priv->ctrl_buf);
2446 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2447 dr->bRequest = 0xB0; /* 49wg control message */
2448 dr->wValue = 0;
2449 dr->wIndex = 0;
2450 dr->wLength = cpu_to_le16(sizeof(msg));
2451
2452 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2453
2454 usb_fill_control_urb(this_urb, serial->dev,
2455 usb_sndctrlpipe(serial->dev, 0),
2456 (unsigned char *)dr, s_priv->glocont_buf,
2457 sizeof(msg), usa49_glocont_callback, serial);
2458
2459 } else {
2460 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2461
2462 /* send the data out the device on control endpoint */
2463 this_urb->transfer_buffer_length = sizeof(msg);
2464 }
2465 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2466 if (err != 0)
2467 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2468
2469 return 0;
2470}
2471
2472static int keyspan_usa90_send_setup(struct usb_serial *serial,
2473 struct usb_serial_port *port,
2474 int reset_port)
2475{
2476 struct keyspan_usa90_portControlMessage msg;
2477 struct keyspan_serial_private *s_priv;
2478 struct keyspan_port_private *p_priv;
2479 const struct keyspan_device_details *d_details;
2480 struct urb *this_urb;
2481 int err;
2482 u8 prescaler;
2483
2484 s_priv = usb_get_serial_data(serial);
2485 p_priv = usb_get_serial_port_data(port);
2486 d_details = s_priv->device_details;
2487
2488 /* only do something if we have a bulk out endpoint */
2489 this_urb = p_priv->outcont_urb;
2490 if (this_urb == NULL) {
2491 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2492 return -1;
2493 }
2494
2495 /* Save reset port val for resend.
2496 Don't overwrite resend for open/close condition. */
2497 if ((reset_port + 1) > p_priv->resend_cont)
2498 p_priv->resend_cont = reset_port + 1;
2499 if (this_urb->status == -EINPROGRESS) {
2500 dev_dbg(&port->dev, "%s already writing\n", __func__);
2501 mdelay(5);
2502 return -1;
2503 }
2504
2505 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2506
2507 /* Only set baud rate if it's changed */
2508 if (p_priv->old_baud != p_priv->baud) {
2509 p_priv->old_baud = p_priv->baud;
2510 msg.setClocking = 0x01;
2511 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2512 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2513 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2514 __func__, p_priv->baud);
2515 p_priv->baud = 9600;
2516 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2517 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2518 }
2519 msg.setRxMode = 1;
2520 msg.setTxMode = 1;
2521 }
2522
2523 /* modes must always be correctly specified */
2524 if (p_priv->baud > 57600) {
2525 msg.rxMode = RXMODE_DMA;
2526 msg.txMode = TXMODE_DMA;
2527 } else {
2528 msg.rxMode = RXMODE_BYHAND;
2529 msg.txMode = TXMODE_BYHAND;
2530 }
2531
2532 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2533 switch (p_priv->cflag & CSIZE) {
2534 case CS5:
2535 msg.lcr |= USA_DATABITS_5;
2536 break;
2537 case CS6:
2538 msg.lcr |= USA_DATABITS_6;
2539 break;
2540 case CS7:
2541 msg.lcr |= USA_DATABITS_7;
2542 break;
2543 case CS8:
2544 msg.lcr |= USA_DATABITS_8;
2545 break;
2546 }
2547 if (p_priv->cflag & PARENB) {
2548 /* note USA_PARITY_NONE == 0 */
2549 msg.lcr |= (p_priv->cflag & PARODD) ?
2550 USA_PARITY_ODD : USA_PARITY_EVEN;
2551 }
2552 if (p_priv->old_cflag != p_priv->cflag) {
2553 p_priv->old_cflag = p_priv->cflag;
2554 msg.setLcr = 0x01;
2555 }
2556
2557 if (p_priv->flow_control == flow_cts)
2558 msg.txFlowControl = TXFLOW_CTS;
2559 msg.setTxFlowControl = 0x01;
2560 msg.setRxFlowControl = 0x01;
2561
2562 msg.rxForwardingLength = 16;
2563 msg.rxForwardingTimeout = 16;
2564 msg.txAckSetting = 0;
2565 msg.xonChar = 17;
2566 msg.xoffChar = 19;
2567
2568 /* Opening port */
2569 if (reset_port == 1) {
2570 msg.portEnabled = 1;
2571 msg.rxFlush = 1;
2572 msg.txBreak = (p_priv->break_on);
2573 }
2574 /* Closing port */
2575 else if (reset_port == 2)
2576 msg.portEnabled = 0;
2577 /* Sending intermediate configs */
2578 else {
2579 msg.portEnabled = 1;
2580 msg.txBreak = (p_priv->break_on);
2581 }
2582
2583 /* Do handshaking outputs */
2584 msg.setRts = 0x01;
2585 msg.rts = p_priv->rts_state;
2586
2587 msg.setDtr = 0x01;
2588 msg.dtr = p_priv->dtr_state;
2589
2590 p_priv->resend_cont = 0;
2591 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2592
2593 /* send the data out the device on control endpoint */
2594 this_urb->transfer_buffer_length = sizeof(msg);
2595
2596 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2597 if (err != 0)
2598 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2599 return 0;
2600}
2601
2602static int keyspan_usa67_send_setup(struct usb_serial *serial,
2603 struct usb_serial_port *port,
2604 int reset_port)
2605{
2606 struct keyspan_usa67_portControlMessage msg;
2607 struct keyspan_serial_private *s_priv;
2608 struct keyspan_port_private *p_priv;
2609 const struct keyspan_device_details *d_details;
2610 struct urb *this_urb;
2611 int err, device_port;
2612
2613 s_priv = usb_get_serial_data(serial);
2614 p_priv = usb_get_serial_port_data(port);
2615 d_details = s_priv->device_details;
2616
2617 this_urb = s_priv->glocont_urb;
2618
2619 /* Work out which port within the device is being setup */
2620 device_port = port->port_number;
2621
2622 /* Make sure we have an urb then send the message */
2623 if (this_urb == NULL) {
2624 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2625 return -1;
2626 }
2627
2628 /* Save reset port val for resend.
2629 Don't overwrite resend for open/close condition. */
2630 if ((reset_port + 1) > p_priv->resend_cont)
2631 p_priv->resend_cont = reset_port + 1;
2632 if (this_urb->status == -EINPROGRESS) {
2633 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2634 mdelay(5);
2635 return -1;
2636 }
2637
2638 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2639
2640 msg.port = device_port;
2641
2642 /* Only set baud rate if it's changed */
2643 if (p_priv->old_baud != p_priv->baud) {
2644 p_priv->old_baud = p_priv->baud;
2645 msg.setClocking = 0xff;
2646 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2647 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2648 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2649 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2650 __func__, p_priv->baud);
2651 msg.baudLo = 0;
2652 msg.baudHi = 125; /* Values for 9600 baud */
2653 msg.prescaler = 10;
2654 }
2655 msg.setPrescaler = 0xff;
2656 }
2657
2658 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2659 switch (p_priv->cflag & CSIZE) {
2660 case CS5:
2661 msg.lcr |= USA_DATABITS_5;
2662 break;
2663 case CS6:
2664 msg.lcr |= USA_DATABITS_6;
2665 break;
2666 case CS7:
2667 msg.lcr |= USA_DATABITS_7;
2668 break;
2669 case CS8:
2670 msg.lcr |= USA_DATABITS_8;
2671 break;
2672 }
2673 if (p_priv->cflag & PARENB) {
2674 /* note USA_PARITY_NONE == 0 */
2675 msg.lcr |= (p_priv->cflag & PARODD) ?
2676 USA_PARITY_ODD : USA_PARITY_EVEN;
2677 }
2678 msg.setLcr = 0xff;
2679
2680 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2681 msg.xonFlowControl = 0;
2682 msg.setFlowControl = 0xff;
2683 msg.forwardingLength = 16;
2684 msg.xonChar = 17;
2685 msg.xoffChar = 19;
2686
2687 if (reset_port == 1) {
2688 /* Opening port */
2689 msg._txOn = 1;
2690 msg._txOff = 0;
2691 msg.txFlush = 0;
2692 msg.txBreak = 0;
2693 msg.rxOn = 1;
2694 msg.rxOff = 0;
2695 msg.rxFlush = 1;
2696 msg.rxForward = 0;
2697 msg.returnStatus = 0;
2698 msg.resetDataToggle = 0xff;
2699 } else if (reset_port == 2) {
2700 /* Closing port */
2701 msg._txOn = 0;
2702 msg._txOff = 1;
2703 msg.txFlush = 0;
2704 msg.txBreak = 0;
2705 msg.rxOn = 0;
2706 msg.rxOff = 1;
2707 msg.rxFlush = 1;
2708 msg.rxForward = 0;
2709 msg.returnStatus = 0;
2710 msg.resetDataToggle = 0;
2711 } else {
2712 /* Sending intermediate configs */
2713 msg._txOn = (!p_priv->break_on);
2714 msg._txOff = 0;
2715 msg.txFlush = 0;
2716 msg.txBreak = (p_priv->break_on);
2717 msg.rxOn = 0;
2718 msg.rxOff = 0;
2719 msg.rxFlush = 0;
2720 msg.rxForward = 0;
2721 msg.returnStatus = 0;
2722 msg.resetDataToggle = 0x0;
2723 }
2724
2725 /* Do handshaking outputs */
2726 msg.setTxTriState_setRts = 0xff;
2727 msg.txTriState_rts = p_priv->rts_state;
2728
2729 msg.setHskoa_setDtr = 0xff;
2730 msg.hskoa_dtr = p_priv->dtr_state;
2731
2732 p_priv->resend_cont = 0;
2733
2734 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2735
2736 /* send the data out the device on control endpoint */
2737 this_urb->transfer_buffer_length = sizeof(msg);
2738
2739 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2740 if (err != 0)
2741 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2742 return 0;
2743}
2744
2745static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2746{
2747 struct usb_serial *serial = port->serial;
2748 struct keyspan_serial_private *s_priv;
2749 const struct keyspan_device_details *d_details;
2750
2751 s_priv = usb_get_serial_data(serial);
2752 d_details = s_priv->device_details;
2753
2754 switch (d_details->msg_format) {
2755 case msg_usa26:
2756 keyspan_usa26_send_setup(serial, port, reset_port);
2757 break;
2758 case msg_usa28:
2759 keyspan_usa28_send_setup(serial, port, reset_port);
2760 break;
2761 case msg_usa49:
2762 keyspan_usa49_send_setup(serial, port, reset_port);
2763 break;
2764 case msg_usa90:
2765 keyspan_usa90_send_setup(serial, port, reset_port);
2766 break;
2767 case msg_usa67:
2768 keyspan_usa67_send_setup(serial, port, reset_port);
2769 break;
2770 }
2771}
2772
2773
2774/* Gets called by the "real" driver (ie once firmware is loaded
2775 and renumeration has taken place. */
2776static int keyspan_startup(struct usb_serial *serial)
2777{
2778 int i, err;
2779 struct keyspan_serial_private *s_priv;
2780 const struct keyspan_device_details *d_details;
2781
2782 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2783 if (d_details->product_id ==
2784 le16_to_cpu(serial->dev->descriptor.idProduct))
2785 break;
2786 if (d_details == NULL) {
2787 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2788 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2789 return -ENODEV;
2790 }
2791
2792 /* Setup private data for serial driver */
2793 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2794 if (!s_priv)
2795 return -ENOMEM;
2796
2797 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL);
2798 if (!s_priv->instat_buf)
2799 goto err_instat_buf;
2800
2801 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL);
2802 if (!s_priv->indat_buf)
2803 goto err_indat_buf;
2804
2805 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL);
2806 if (!s_priv->glocont_buf)
2807 goto err_glocont_buf;
2808
2809 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
2810 if (!s_priv->ctrl_buf)
2811 goto err_ctrl_buf;
2812
2813 s_priv->device_details = d_details;
2814 usb_set_serial_data(serial, s_priv);
2815
2816 keyspan_setup_urbs(serial);
2817
2818 if (s_priv->instat_urb != NULL) {
2819 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2820 if (err != 0)
2821 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
2822 }
2823 if (s_priv->indat_urb != NULL) {
2824 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2825 if (err != 0)
2826 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
2827 }
2828
2829 return 0;
2830
2831err_ctrl_buf:
2832 kfree(s_priv->glocont_buf);
2833err_glocont_buf:
2834 kfree(s_priv->indat_buf);
2835err_indat_buf:
2836 kfree(s_priv->instat_buf);
2837err_instat_buf:
2838 kfree(s_priv);
2839
2840 return -ENOMEM;
2841}
2842
2843static void keyspan_disconnect(struct usb_serial *serial)
2844{
2845 struct keyspan_serial_private *s_priv;
2846
2847 s_priv = usb_get_serial_data(serial);
2848
2849 usb_kill_urb(s_priv->instat_urb);
2850 usb_kill_urb(s_priv->glocont_urb);
2851 usb_kill_urb(s_priv->indat_urb);
2852}
2853
2854static void keyspan_release(struct usb_serial *serial)
2855{
2856 struct keyspan_serial_private *s_priv;
2857
2858 s_priv = usb_get_serial_data(serial);
2859
2860 /* Make sure to unlink the URBs submitted in attach. */
2861 usb_kill_urb(s_priv->instat_urb);
2862 usb_kill_urb(s_priv->indat_urb);
2863
2864 usb_free_urb(s_priv->instat_urb);
2865 usb_free_urb(s_priv->indat_urb);
2866 usb_free_urb(s_priv->glocont_urb);
2867
2868 kfree(s_priv->ctrl_buf);
2869 kfree(s_priv->glocont_buf);
2870 kfree(s_priv->indat_buf);
2871 kfree(s_priv->instat_buf);
2872
2873 kfree(s_priv);
2874}
2875
2876static int keyspan_port_probe(struct usb_serial_port *port)
2877{
2878 struct usb_serial *serial = port->serial;
2879 struct keyspan_serial_private *s_priv;
2880 struct keyspan_port_private *p_priv;
2881 const struct keyspan_device_details *d_details;
2882 struct callbacks *cback;
2883 int endp;
2884 int port_num;
2885 int i;
2886
2887 s_priv = usb_get_serial_data(serial);
2888 d_details = s_priv->device_details;
2889
2890 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL);
2891 if (!p_priv)
2892 return -ENOMEM;
2893
2894 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
2895 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
2896 if (!p_priv->in_buffer[i])
2897 goto err_free_in_buffer;
2898 }
2899
2900 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
2901 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
2902 if (!p_priv->out_buffer[i])
2903 goto err_free_out_buffer;
2904 }
2905
2906 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
2907 if (!p_priv->inack_buffer)
2908 goto err_free_out_buffer;
2909
2910 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
2911 if (!p_priv->outcont_buffer)
2912 goto err_free_inack_buffer;
2913
2914 p_priv->device_details = d_details;
2915
2916 /* Setup values for the various callback routines */
2917 cback = &keyspan_callbacks[d_details->msg_format];
2918
2919 port_num = port->port_number;
2920
2921 /* Do indat endpoints first, once for each flip */
2922 endp = d_details->indat_endpoints[port_num];
2923 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) {
2924 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp,
2925 USB_DIR_IN, port,
2926 p_priv->in_buffer[i],
2927 IN_BUFLEN,
2928 cback->indat_callback);
2929 }
2930 /* outdat endpoints also have flip */
2931 endp = d_details->outdat_endpoints[port_num];
2932 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) {
2933 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp,
2934 USB_DIR_OUT, port,
2935 p_priv->out_buffer[i],
2936 OUT_BUFLEN,
2937 cback->outdat_callback);
2938 }
2939 /* inack endpoint */
2940 p_priv->inack_urb = keyspan_setup_urb(serial,
2941 d_details->inack_endpoints[port_num],
2942 USB_DIR_IN, port,
2943 p_priv->inack_buffer,
2944 INACK_BUFLEN,
2945 cback->inack_callback);
2946 /* outcont endpoint */
2947 p_priv->outcont_urb = keyspan_setup_urb(serial,
2948 d_details->outcont_endpoints[port_num],
2949 USB_DIR_OUT, port,
2950 p_priv->outcont_buffer,
2951 OUTCONT_BUFLEN,
2952 cback->outcont_callback);
2953
2954 usb_set_serial_port_data(port, p_priv);
2955
2956 return 0;
2957
2958err_free_inack_buffer:
2959 kfree(p_priv->inack_buffer);
2960err_free_out_buffer:
2961 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2962 kfree(p_priv->out_buffer[i]);
2963err_free_in_buffer:
2964 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2965 kfree(p_priv->in_buffer[i]);
2966 kfree(p_priv);
2967
2968 return -ENOMEM;
2969}
2970
2971static void keyspan_port_remove(struct usb_serial_port *port)
2972{
2973 struct keyspan_port_private *p_priv;
2974 int i;
2975
2976 p_priv = usb_get_serial_port_data(port);
2977
2978 usb_kill_urb(p_priv->inack_urb);
2979 usb_kill_urb(p_priv->outcont_urb);
2980 for (i = 0; i < 2; i++) {
2981 usb_kill_urb(p_priv->in_urbs[i]);
2982 usb_kill_urb(p_priv->out_urbs[i]);
2983 }
2984
2985 usb_free_urb(p_priv->inack_urb);
2986 usb_free_urb(p_priv->outcont_urb);
2987 for (i = 0; i < 2; i++) {
2988 usb_free_urb(p_priv->in_urbs[i]);
2989 usb_free_urb(p_priv->out_urbs[i]);
2990 }
2991
2992 kfree(p_priv->outcont_buffer);
2993 kfree(p_priv->inack_buffer);
2994 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2995 kfree(p_priv->out_buffer[i]);
2996 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2997 kfree(p_priv->in_buffer[i]);
2998
2999 kfree(p_priv);
3000}
3001
3002/* Structs for the devices, pre and post renumeration. */
3003static struct usb_serial_driver keyspan_pre_device = {
3004 .driver = {
3005 .owner = THIS_MODULE,
3006 .name = "keyspan_no_firm",
3007 },
3008 .description = "Keyspan - (without firmware)",
3009 .id_table = keyspan_pre_ids,
3010 .num_ports = 1,
3011 .attach = keyspan_fake_startup,
3012};
3013
3014static struct usb_serial_driver keyspan_1port_device = {
3015 .driver = {
3016 .owner = THIS_MODULE,
3017 .name = "keyspan_1",
3018 },
3019 .description = "Keyspan 1 port adapter",
3020 .id_table = keyspan_1port_ids,
3021 .num_ports = 1,
3022 .open = keyspan_open,
3023 .close = keyspan_close,
3024 .dtr_rts = keyspan_dtr_rts,
3025 .write = keyspan_write,
3026 .write_room = keyspan_write_room,
3027 .set_termios = keyspan_set_termios,
3028 .break_ctl = keyspan_break_ctl,
3029 .tiocmget = keyspan_tiocmget,
3030 .tiocmset = keyspan_tiocmset,
3031 .attach = keyspan_startup,
3032 .disconnect = keyspan_disconnect,
3033 .release = keyspan_release,
3034 .port_probe = keyspan_port_probe,
3035 .port_remove = keyspan_port_remove,
3036};
3037
3038static struct usb_serial_driver keyspan_2port_device = {
3039 .driver = {
3040 .owner = THIS_MODULE,
3041 .name = "keyspan_2",
3042 },
3043 .description = "Keyspan 2 port adapter",
3044 .id_table = keyspan_2port_ids,
3045 .num_ports = 2,
3046 .open = keyspan_open,
3047 .close = keyspan_close,
3048 .dtr_rts = keyspan_dtr_rts,
3049 .write = keyspan_write,
3050 .write_room = keyspan_write_room,
3051 .set_termios = keyspan_set_termios,
3052 .break_ctl = keyspan_break_ctl,
3053 .tiocmget = keyspan_tiocmget,
3054 .tiocmset = keyspan_tiocmset,
3055 .attach = keyspan_startup,
3056 .disconnect = keyspan_disconnect,
3057 .release = keyspan_release,
3058 .port_probe = keyspan_port_probe,
3059 .port_remove = keyspan_port_remove,
3060};
3061
3062static struct usb_serial_driver keyspan_4port_device = {
3063 .driver = {
3064 .owner = THIS_MODULE,
3065 .name = "keyspan_4",
3066 },
3067 .description = "Keyspan 4 port adapter",
3068 .id_table = keyspan_4port_ids,
3069 .num_ports = 4,
3070 .open = keyspan_open,
3071 .close = keyspan_close,
3072 .dtr_rts = keyspan_dtr_rts,
3073 .write = keyspan_write,
3074 .write_room = keyspan_write_room,
3075 .set_termios = keyspan_set_termios,
3076 .break_ctl = keyspan_break_ctl,
3077 .tiocmget = keyspan_tiocmget,
3078 .tiocmset = keyspan_tiocmset,
3079 .attach = keyspan_startup,
3080 .disconnect = keyspan_disconnect,
3081 .release = keyspan_release,
3082 .port_probe = keyspan_port_probe,
3083 .port_remove = keyspan_port_remove,
3084};
3085
3086static struct usb_serial_driver * const serial_drivers[] = {
3087 &keyspan_pre_device, &keyspan_1port_device,
3088 &keyspan_2port_device, &keyspan_4port_device, NULL
3089};
3090
3091module_usb_serial_driver(serial_drivers, keyspan_ids_combined);
3092
3093MODULE_AUTHOR(DRIVER_AUTHOR);
3094MODULE_DESCRIPTION(DRIVER_DESC);
3095MODULE_LICENSE("GPL");
3096
3097MODULE_FIRMWARE("keyspan/usa28.fw");
3098MODULE_FIRMWARE("keyspan/usa28x.fw");
3099MODULE_FIRMWARE("keyspan/usa28xa.fw");
3100MODULE_FIRMWARE("keyspan/usa28xb.fw");
3101MODULE_FIRMWARE("keyspan/usa19.fw");
3102MODULE_FIRMWARE("keyspan/usa19qi.fw");
3103MODULE_FIRMWARE("keyspan/mpr.fw");
3104MODULE_FIRMWARE("keyspan/usa19qw.fw");
3105MODULE_FIRMWARE("keyspan/usa18x.fw");
3106MODULE_FIRMWARE("keyspan/usa19w.fw");
3107MODULE_FIRMWARE("keyspan/usa49w.fw");
3108MODULE_FIRMWARE("keyspan/usa49wlc.fw");