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USB: omninet: fix write_room
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / serial / keyspan.c
blobf8c4b07033ffb6666c4e636e4dad9b52767709a2
1 /*
2 Keyspan USB to Serial Converter driver
3
4 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 See http://misc.nu/hugh/keyspan.html for more information.
13
14 Code in this driver inspired by and in a number of places taken
15 from Brian Warner's original Keyspan-PDA driver.
16
17 This driver has been put together with the support of Innosys, Inc.
18 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
19 Thanks Guys :)
20
21 Thanks to Paulus for miscellaneous tidy ups, some largish chunks
22 of much nicer and/or completely new code and (perhaps most uniquely)
23 having the patience to sit down and explain why and where he'd changed
24 stuff.
25
26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
27 staff in their work on open source projects.
28
29 Change History
30
31 2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
32 Improve setup message handling for all devices.
33
34 Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
35 Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
36 Linux source tree. The Linux tree lacked support for the 49WLC and
37 others. The Keyspan patches didn't work with the current kernel.
38
39 2003jan30 LPM add support for the 49WLC and MPR
40
41 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
42 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
43 now supported (including QI and QW). Modified port open, port
44 close, and send setup() logic to fix various data and endpoint
45 synchronization bugs and device LED status bugs. Changed keyspan_
46 write_room() to accurately return transmit buffer availability.
47 Changed forwardingLength from 1 to 16 for all adapters.
48
49 Fri Oct 12 16:45:00 EST 2001
50 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
51
52 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
53 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
54 now supported (including QI and QW). Modified port open, port
55 close, and send setup() logic to fix various data and endpoint
56 synchronization bugs and device LED status bugs. Changed keyspan_
57 write_room() to accurately return transmit buffer availability.
58 Changed forwardingLength from 1 to 16 for all adapters.
59
60 Fri Oct 12 16:45:00 EST 2001
61 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
62
63 Mon Oct 8 14:29:00 EST 2001 hugh
64 Fixed bug that prevented mulitport devices operating correctly
65 if they weren't the first unit attached.
66
67 Sat Oct 6 12:31:21 EST 2001 hugh
68 Added support for USA-28XA and -28XB, misc cleanups, break support
69 for usa26 based models thanks to David Gibson.
70
71 Thu May 31 11:56:42 PDT 2001 gkh
72 switched from using spinlock to a semaphore
73
74 (04/08/2001) gb
75 Identify version on module load.
76
77 (11/01/2000) Adam J. Richter
78 usb_device_id table support.
79
80 Tue Oct 10 23:15:33 EST 2000 Hugh
81 Merged Paul's changes with my USA-49W mods. Work in progress
82 still...
83
84 Wed Jul 19 14:00:42 EST 2000 gkh
85 Added module_init and module_exit functions to handle the fact that
86 this driver is a loadable module now.
87
88 Tue Jul 18 16:14:52 EST 2000 Hugh
89 Basic character input/output for USA-19 now mostly works,
90 fixed at 9600 baud for the moment.
91
92 Sat Jul 8 11:11:48 EST 2000 Hugh
93 First public release - nothing works except the firmware upload.
94 Tested on PPC and x86 architectures, seems to behave...
95 */
96
97
98 #include <linux/kernel.h>
99 #include <linux/jiffies.h>
100 #include <linux/errno.h>
101 #include <linux/init.h>
102 #include <linux/slab.h>
103 #include <linux/tty.h>
104 #include <linux/tty_driver.h>
105 #include <linux/tty_flip.h>
106 #include <linux/module.h>
107 #include <linux/spinlock.h>
108 #include <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
115 static 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 */
129 struct 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
146 struct 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. */
201 static 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;
224 failed_usb_register:
225 usb_serial_deregister(&keyspan_4port_device);
226 failed_4port_device_register:
227 usb_serial_deregister(&keyspan_2port_device);
228 failed_2port_device_register:
229 usb_serial_deregister(&keyspan_1port_device);
230 failed_1port_device_register:
231 usb_serial_deregister(&keyspan_pre_device);
232 failed_pre_device_register:
233 return retval;
234 }
235
236 static 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
245 module_init(keyspan_init);
246 module_exit(keyspan_exit);
247
248 static 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
266 static 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
304 static int keyspan_tiocmget(struct tty_struct *tty, struct file *file)
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
320 static int keyspan_tiocmset(struct tty_struct *tty, struct file *file,
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 */
340 static 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
414 static 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 if (port->port.count) {
468 err = usb_submit_urb(urb, GFP_ATOMIC);
469 if (err != 0)
470 dbg("%s - resubmit read urb failed. (%d)",
471 __func__, err);
472 }
473 return;
474 }
475
476 /* Outdat handling is common for all devices */
477 static void usa2x_outdat_callback(struct urb *urb)
478 {
479 struct usb_serial_port *port;
480 struct keyspan_port_private *p_priv;
481
482 port = urb->context;
483 p_priv = usb_get_serial_port_data(port);
484 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
485
486 if (port->port.count)
487 usb_serial_port_softint(port);
488 }
489
490 static void usa26_inack_callback(struct urb *urb)
491 {
492 dbg("%s", __func__);
493
494 }
495
496 static void usa26_outcont_callback(struct urb *urb)
497 {
498 struct usb_serial_port *port;
499 struct keyspan_port_private *p_priv;
500
501 port = urb->context;
502 p_priv = usb_get_serial_port_data(port);
503
504 if (p_priv->resend_cont) {
505 dbg("%s - sending setup", __func__);
506 keyspan_usa26_send_setup(port->serial, port,
507 p_priv->resend_cont - 1);
508 }
509 }
510
511 static void usa26_instat_callback(struct urb *urb)
512 {
513 unsigned char *data = urb->transfer_buffer;
514 struct keyspan_usa26_portStatusMessage *msg;
515 struct usb_serial *serial;
516 struct usb_serial_port *port;
517 struct keyspan_port_private *p_priv;
518 struct tty_struct *tty;
519 int old_dcd_state, err;
520 int status = urb->status;
521
522 serial = urb->context;
523
524 if (status) {
525 dbg("%s - nonzero status: %x", __func__, status);
526 return;
527 }
528 if (urb->actual_length != 9) {
529 dbg("%s - %d byte report??", __func__, urb->actual_length);
530 goto exit;
531 }
532
533 msg = (struct keyspan_usa26_portStatusMessage *)data;
534
535 #if 0
536 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
537 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
538 msg->_txXoff, msg->rxEnabled, msg->controlResponse);
539 #endif
540
541 /* Now do something useful with the data */
542
543
544 /* Check port number from message and retrieve private data */
545 if (msg->port >= serial->num_ports) {
546 dbg("%s - Unexpected port number %d", __func__, msg->port);
547 goto exit;
548 }
549 port = serial->port[msg->port];
550 p_priv = usb_get_serial_port_data(port);
551
552 /* Update handshaking pin state information */
553 old_dcd_state = p_priv->dcd_state;
554 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
555 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
556 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
557 p_priv->ri_state = ((msg->ri) ? 1 : 0);
558
559 if (old_dcd_state != p_priv->dcd_state) {
560 tty = tty_port_tty_get(&port->port);
561 if (tty && !C_CLOCAL(tty))
562 tty_hangup(tty);
563 tty_kref_put(tty);
564 }
565
566 /* Resubmit urb so we continue receiving */
567 urb->dev = serial->dev;
568 err = usb_submit_urb(urb, GFP_ATOMIC);
569 if (err != 0)
570 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
571 exit: ;
572 }
573
574 static void usa26_glocont_callback(struct urb *urb)
575 {
576 dbg("%s", __func__);
577 }
578
579
580 static void usa28_indat_callback(struct urb *urb)
581 {
582 int err;
583 struct usb_serial_port *port;
584 struct tty_struct *tty;
585 unsigned char *data;
586 struct keyspan_port_private *p_priv;
587 int status = urb->status;
588
589 dbg("%s", __func__);
590
591 port = urb->context;
592 p_priv = usb_get_serial_port_data(port);
593 data = urb->transfer_buffer;
594
595 if (urb != p_priv->in_urbs[p_priv->in_flip])
596 return;
597
598 do {
599 if (status) {
600 dbg("%s - nonzero status: %x on endpoint %d.",
601 __func__, status, usb_pipeendpoint(urb->pipe));
602 return;
603 }
604
605 port = urb->context;
606 p_priv = usb_get_serial_port_data(port);
607 data = urb->transfer_buffer;
608
609 tty =tty_port_tty_get(&port->port);
610 if (tty && urb->actual_length) {
611 tty_insert_flip_string(tty, data, urb->actual_length);
612 tty_flip_buffer_push(tty);
613 }
614 tty_kref_put(tty);
615
616 /* Resubmit urb so we continue receiving */
617 urb->dev = port->serial->dev;
618 if (port->port.count) {
619 err = usb_submit_urb(urb, GFP_ATOMIC);
620 if (err != 0)
621 dbg("%s - resubmit read urb failed. (%d)",
622 __func__, err);
623 }
624 p_priv->in_flip ^= 1;
625
626 urb = p_priv->in_urbs[p_priv->in_flip];
627 } while (urb->status != -EINPROGRESS);
628 }
629
630 static void usa28_inack_callback(struct urb *urb)
631 {
632 dbg("%s", __func__);
633 }
634
635 static void usa28_outcont_callback(struct urb *urb)
636 {
637 struct usb_serial_port *port;
638 struct keyspan_port_private *p_priv;
639
640 port = urb->context;
641 p_priv = usb_get_serial_port_data(port);
642
643 if (p_priv->resend_cont) {
644 dbg("%s - sending setup", __func__);
645 keyspan_usa28_send_setup(port->serial, port,
646 p_priv->resend_cont - 1);
647 }
648 }
649
650 static void usa28_instat_callback(struct urb *urb)
651 {
652 int err;
653 unsigned char *data = urb->transfer_buffer;
654 struct keyspan_usa28_portStatusMessage *msg;
655 struct usb_serial *serial;
656 struct usb_serial_port *port;
657 struct keyspan_port_private *p_priv;
658 struct tty_struct *tty;
659 int old_dcd_state;
660 int status = urb->status;
661
662 serial = urb->context;
663
664 if (status) {
665 dbg("%s - nonzero status: %x", __func__, status);
666 return;
667 }
668
669 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
670 dbg("%s - bad length %d", __func__, urb->actual_length);
671 goto exit;
672 }
673
674 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
675 data[0], data[1], data[2], data[3], data[4], data[5],
676 data[6], data[7], data[8], data[9], data[10], data[11]);*/
677
678 /* Now do something useful with the data */
679 msg = (struct keyspan_usa28_portStatusMessage *)data;
680
681 /* Check port number from message and retrieve private data */
682 if (msg->port >= serial->num_ports) {
683 dbg("%s - Unexpected port number %d", __func__, msg->port);
684 goto exit;
685 }
686 port = serial->port[msg->port];
687 p_priv = usb_get_serial_port_data(port);
688
689 /* Update handshaking pin state information */
690 old_dcd_state = p_priv->dcd_state;
691 p_priv->cts_state = ((msg->cts) ? 1 : 0);
692 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
693 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
694 p_priv->ri_state = ((msg->ri) ? 1 : 0);
695
696 if( old_dcd_state != p_priv->dcd_state && old_dcd_state) {
697 tty = tty_port_tty_get(&port->port);
698 if (tty && !C_CLOCAL(tty))
699 tty_hangup(tty);
700 tty_kref_put(tty);
701 }
702
703 /* Resubmit urb so we continue receiving */
704 urb->dev = serial->dev;
705 err = usb_submit_urb(urb, GFP_ATOMIC);
706 if (err != 0)
707 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
708 exit: ;
709 }
710
711 static void usa28_glocont_callback(struct urb *urb)
712 {
713 dbg("%s", __func__);
714 }
715
716
717 static void usa49_glocont_callback(struct urb *urb)
718 {
719 struct usb_serial *serial;
720 struct usb_serial_port *port;
721 struct keyspan_port_private *p_priv;
722 int i;
723
724 dbg("%s", __func__);
725
726 serial = urb->context;
727 for (i = 0; i < serial->num_ports; ++i) {
728 port = serial->port[i];
729 p_priv = usb_get_serial_port_data(port);
730
731 if (p_priv->resend_cont) {
732 dbg("%s - sending setup", __func__);
733 keyspan_usa49_send_setup(serial, port,
734 p_priv->resend_cont - 1);
735 break;
736 }
737 }
738 }
739
740 /* This is actually called glostat in the Keyspan
741 doco */
742 static void usa49_instat_callback(struct urb *urb)
743 {
744 int err;
745 unsigned char *data = urb->transfer_buffer;
746 struct keyspan_usa49_portStatusMessage *msg;
747 struct usb_serial *serial;
748 struct usb_serial_port *port;
749 struct keyspan_port_private *p_priv;
750 int old_dcd_state;
751 int status = urb->status;
752
753 dbg("%s", __func__);
754
755 serial = urb->context;
756
757 if (status) {
758 dbg("%s - nonzero status: %x", __func__, status);
759 return;
760 }
761
762 if (urb->actual_length !=
763 sizeof(struct keyspan_usa49_portStatusMessage)) {
764 dbg("%s - bad length %d", __func__, urb->actual_length);
765 goto exit;
766 }
767
768 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
769 data[0], data[1], data[2], data[3], data[4], data[5],
770 data[6], data[7], data[8], data[9], data[10]);*/
771
772 /* Now do something useful with the data */
773 msg = (struct keyspan_usa49_portStatusMessage *)data;
774
775 /* Check port number from message and retrieve private data */
776 if (msg->portNumber >= serial->num_ports) {
777 dbg("%s - Unexpected port number %d",
778 __func__, msg->portNumber);
779 goto exit;
780 }
781 port = serial->port[msg->portNumber];
782 p_priv = usb_get_serial_port_data(port);
783
784 /* Update handshaking pin state information */
785 old_dcd_state = p_priv->dcd_state;
786 p_priv->cts_state = ((msg->cts) ? 1 : 0);
787 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
788 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
789 p_priv->ri_state = ((msg->ri) ? 1 : 0);
790
791 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
792 struct tty_struct *tty = tty_port_tty_get(&port->port);
793 if (tty && !C_CLOCAL(tty))
794 tty_hangup(tty);
795 tty_kref_put(tty);
796 }
797
798 /* Resubmit urb so we continue receiving */
799 urb->dev = serial->dev;
800
801 err = usb_submit_urb(urb, GFP_ATOMIC);
802 if (err != 0)
803 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
804 exit: ;
805 }
806
807 static void usa49_inack_callback(struct urb *urb)
808 {
809 dbg("%s", __func__);
810 }
811
812 static void usa49_indat_callback(struct urb *urb)
813 {
814 int i, err;
815 int endpoint;
816 struct usb_serial_port *port;
817 struct tty_struct *tty;
818 unsigned char *data = urb->transfer_buffer;
819 int status = urb->status;
820
821 dbg("%s", __func__);
822
823 endpoint = usb_pipeendpoint(urb->pipe);
824
825 if (status) {
826 dbg("%s - nonzero status: %x on endpoint %d.", __func__,
827 status, endpoint);
828 return;
829 }
830
831 port = urb->context;
832 tty = tty_port_tty_get(&port->port);
833 if (tty && urb->actual_length) {
834 /* 0x80 bit is error flag */
835 if ((data[0] & 0x80) == 0) {
836 /* no error on any byte */
837 tty_insert_flip_string(tty, data + 1,
838 urb->actual_length - 1);
839 } else {
840 /* some bytes had errors, every byte has status */
841 for (i = 0; i + 1 < urb->actual_length; i += 2) {
842 int stat = data[i], flag = 0;
843 if (stat & RXERROR_OVERRUN)
844 flag |= TTY_OVERRUN;
845 if (stat & RXERROR_FRAMING)
846 flag |= TTY_FRAME;
847 if (stat & RXERROR_PARITY)
848 flag |= TTY_PARITY;
849 /* XXX should handle break (0x10) */
850 tty_insert_flip_char(tty, data[i+1], flag);
851 }
852 }
853 tty_flip_buffer_push(tty);
854 }
855 tty_kref_put(tty);
856
857 /* Resubmit urb so we continue receiving */
858 urb->dev = port->serial->dev;
859 if (port->port.count) {
860 err = usb_submit_urb(urb, GFP_ATOMIC);
861 if (err != 0)
862 dbg("%s - resubmit read urb failed. (%d)",
863 __func__, err);
864 }
865 }
866
867 static void usa49wg_indat_callback(struct urb *urb)
868 {
869 int i, len, x, err;
870 struct usb_serial *serial;
871 struct usb_serial_port *port;
872 struct tty_struct *tty;
873 unsigned char *data = urb->transfer_buffer;
874 int status = urb->status;
875
876 dbg("%s", __func__);
877
878 serial = urb->context;
879
880 if (status) {
881 dbg("%s - nonzero status: %x", __func__, status);
882 return;
883 }
884
885 /* inbound data is in the form P#, len, status, data */
886 i = 0;
887 len = 0;
888
889 if (urb->actual_length) {
890 while (i < urb->actual_length) {
891
892 /* Check port number from message*/
893 if (data[i] >= serial->num_ports) {
894 dbg("%s - Unexpected port number %d",
895 __func__, data[i]);
896 return;
897 }
898 port = serial->port[data[i++]];
899 tty = tty_port_tty_get(&port->port);
900 len = data[i++];
901
902 /* 0x80 bit is error flag */
903 if ((data[i] & 0x80) == 0) {
904 /* no error on any byte */
905 i++;
906 for (x = 1; x < len ; ++x)
907 if (port->port.count)
908 tty_insert_flip_char(tty,
909 data[i++], 0);
910 else
911 i++;
912 } else {
913 /*
914 * some bytes had errors, every byte has status
915 */
916 for (x = 0; x + 1 < len; x += 2) {
917 int stat = data[i], flag = 0;
918 if (stat & RXERROR_OVERRUN)
919 flag |= TTY_OVERRUN;
920 if (stat & RXERROR_FRAMING)
921 flag |= TTY_FRAME;
922 if (stat & RXERROR_PARITY)
923 flag |= TTY_PARITY;
924 /* XXX should handle break (0x10) */
925 if (port->port.count)
926 tty_insert_flip_char(tty,
927 data[i+1], flag);
928 i += 2;
929 }
930 }
931 if (port->port.count)
932 tty_flip_buffer_push(tty);
933 tty_kref_put(tty);
934 }
935 }
936
937 /* Resubmit urb so we continue receiving */
938 urb->dev = serial->dev;
939
940 err = usb_submit_urb(urb, GFP_ATOMIC);
941 if (err != 0)
942 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
943 }
944
945 /* not used, usa-49 doesn't have per-port control endpoints */
946 static void usa49_outcont_callback(struct urb *urb)
947 {
948 dbg("%s", __func__);
949 }
950
951 static void usa90_indat_callback(struct urb *urb)
952 {
953 int i, err;
954 int endpoint;
955 struct usb_serial_port *port;
956 struct keyspan_port_private *p_priv;
957 struct tty_struct *tty;
958 unsigned char *data = urb->transfer_buffer;
959 int status = urb->status;
960
961 dbg("%s", __func__);
962
963 endpoint = usb_pipeendpoint(urb->pipe);
964
965 if (status) {
966 dbg("%s - nonzero status: %x on endpoint %d.",
967 __func__, status, endpoint);
968 return;
969 }
970
971 port = urb->context;
972 p_priv = usb_get_serial_port_data(port);
973
974 if (urb->actual_length) {
975 tty = tty_port_tty_get(&port->port);
976 /* if current mode is DMA, looks like usa28 format
977 otherwise looks like usa26 data format */
978
979 if (p_priv->baud > 57600)
980 tty_insert_flip_string(tty, data, urb->actual_length);
981 else {
982 /* 0x80 bit is error flag */
983 if ((data[0] & 0x80) == 0) {
984 /* no errors on individual bytes, only
985 possible overrun err*/
986 if (data[0] & RXERROR_OVERRUN)
987 err = TTY_OVERRUN;
988 else
989 err = 0;
990 for (i = 1; i < urb->actual_length ; ++i)
991 tty_insert_flip_char(tty, data[i],
992 err);
993 } else {
994 /* some bytes had errors, every byte has status */
995 dbg("%s - RX error!!!!", __func__);
996 for (i = 0; i + 1 < urb->actual_length; i += 2) {
997 int stat = data[i], flag = 0;
998 if (stat & RXERROR_OVERRUN)
999 flag |= TTY_OVERRUN;
1000 if (stat & RXERROR_FRAMING)
1001 flag |= TTY_FRAME;
1002 if (stat & RXERROR_PARITY)
1003 flag |= TTY_PARITY;
1004 /* XXX should handle break (0x10) */
1005 tty_insert_flip_char(tty, data[i+1],
1006 flag);
1007 }
1008 }
1009 }
1010 tty_flip_buffer_push(tty);
1011 tty_kref_put(tty);
1012 }
1013
1014 /* Resubmit urb so we continue receiving */
1015 urb->dev = port->serial->dev;
1016 if (port->port.count) {
1017 err = usb_submit_urb(urb, GFP_ATOMIC);
1018 if (err != 0)
1019 dbg("%s - resubmit read urb failed. (%d)",
1020 __func__, err);
1021 }
1022 return;
1023 }
1024
1025
1026 static void usa90_instat_callback(struct urb *urb)
1027 {
1028 unsigned char *data = urb->transfer_buffer;
1029 struct keyspan_usa90_portStatusMessage *msg;
1030 struct usb_serial *serial;
1031 struct usb_serial_port *port;
1032 struct keyspan_port_private *p_priv;
1033 struct tty_struct *tty;
1034 int old_dcd_state, err;
1035 int status = urb->status;
1036
1037 serial = urb->context;
1038
1039 if (status) {
1040 dbg("%s - nonzero status: %x", __func__, status);
1041 return;
1042 }
1043 if (urb->actual_length < 14) {
1044 dbg("%s - %d byte report??", __func__, urb->actual_length);
1045 goto exit;
1046 }
1047
1048 msg = (struct keyspan_usa90_portStatusMessage *)data;
1049
1050 /* Now do something useful with the data */
1051
1052 port = serial->port[0];
1053 p_priv = usb_get_serial_port_data(port);
1054
1055 /* Update handshaking pin state information */
1056 old_dcd_state = p_priv->dcd_state;
1057 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1058 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1059 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1060 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1061
1062 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1063 tty = tty_port_tty_get(&port->port);
1064 if (tty && !C_CLOCAL(tty))
1065 tty_hangup(tty);
1066 tty_kref_put(tty);
1067 }
1068
1069 /* Resubmit urb so we continue receiving */
1070 urb->dev = serial->dev;
1071 err = usb_submit_urb(urb, GFP_ATOMIC);
1072 if (err != 0)
1073 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1074 exit:
1075 ;
1076 }
1077
1078 static void usa90_outcont_callback(struct urb *urb)
1079 {
1080 struct usb_serial_port *port;
1081 struct keyspan_port_private *p_priv;
1082
1083 port = urb->context;
1084 p_priv = usb_get_serial_port_data(port);
1085
1086 if (p_priv->resend_cont) {
1087 dbg("%s - sending setup", __func__);
1088 keyspan_usa90_send_setup(port->serial, port,
1089 p_priv->resend_cont - 1);
1090 }
1091 }
1092
1093 /* Status messages from the 28xg */
1094 static void usa67_instat_callback(struct urb *urb)
1095 {
1096 int err;
1097 unsigned char *data = urb->transfer_buffer;
1098 struct keyspan_usa67_portStatusMessage *msg;
1099 struct usb_serial *serial;
1100 struct usb_serial_port *port;
1101 struct keyspan_port_private *p_priv;
1102 int old_dcd_state;
1103 int status = urb->status;
1104
1105 dbg("%s", __func__);
1106
1107 serial = urb->context;
1108
1109 if (status) {
1110 dbg("%s - nonzero status: %x", __func__, status);
1111 return;
1112 }
1113
1114 if (urb->actual_length !=
1115 sizeof(struct keyspan_usa67_portStatusMessage)) {
1116 dbg("%s - bad length %d", __func__, urb->actual_length);
1117 return;
1118 }
1119
1120
1121 /* Now do something useful with the data */
1122 msg = (struct keyspan_usa67_portStatusMessage *)data;
1123
1124 /* Check port number from message and retrieve private data */
1125 if (msg->port >= serial->num_ports) {
1126 dbg("%s - Unexpected port number %d", __func__, msg->port);
1127 return;
1128 }
1129
1130 port = serial->port[msg->port];
1131 p_priv = usb_get_serial_port_data(port);
1132
1133 /* Update handshaking pin state information */
1134 old_dcd_state = p_priv->dcd_state;
1135 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1136 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1137
1138 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1139 struct tty_struct *tty = tty_port_tty_get(&port->port);
1140 if (tty && !C_CLOCAL(tty))
1141 tty_hangup(tty);
1142 tty_kref_put(tty);
1143 }
1144
1145 /* Resubmit urb so we continue receiving */
1146 urb->dev = serial->dev;
1147 err = usb_submit_urb(urb, GFP_ATOMIC);
1148 if (err != 0)
1149 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1150 }
1151
1152 static void usa67_glocont_callback(struct urb *urb)
1153 {
1154 struct usb_serial *serial;
1155 struct usb_serial_port *port;
1156 struct keyspan_port_private *p_priv;
1157 int i;
1158
1159 dbg("%s", __func__);
1160
1161 serial = urb->context;
1162 for (i = 0; i < serial->num_ports; ++i) {
1163 port = serial->port[i];
1164 p_priv = usb_get_serial_port_data(port);
1165
1166 if (p_priv->resend_cont) {
1167 dbg("%s - sending setup", __func__);
1168 keyspan_usa67_send_setup(serial, port,
1169 p_priv->resend_cont - 1);
1170 break;
1171 }
1172 }
1173 }
1174
1175 static int keyspan_write_room(struct tty_struct *tty)
1176 {
1177 struct usb_serial_port *port = tty->driver_data;
1178 struct keyspan_port_private *p_priv;
1179 const struct keyspan_device_details *d_details;
1180 int flip;
1181 int data_len;
1182 struct urb *this_urb;
1183
1184 dbg("%s", __func__);
1185 p_priv = usb_get_serial_port_data(port);
1186 d_details = p_priv->device_details;
1187
1188 /* FIXME: locking */
1189 if (d_details->msg_format == msg_usa90)
1190 data_len = 64;
1191 else
1192 data_len = 63;
1193
1194 flip = p_priv->out_flip;
1195
1196 /* Check both endpoints to see if any are available. */
1197 this_urb = p_priv->out_urbs[flip];
1198 if (this_urb != NULL) {
1199 if (this_urb->status != -EINPROGRESS)
1200 return data_len;
1201 flip = (flip + 1) & d_details->outdat_endp_flip;
1202 this_urb = p_priv->out_urbs[flip];
1203 if (this_urb != NULL) {
1204 if (this_urb->status != -EINPROGRESS)
1205 return data_len;
1206 }
1207 }
1208 return 0;
1209 }
1210
1211
1212 static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1213 {
1214 struct keyspan_port_private *p_priv;
1215 struct keyspan_serial_private *s_priv;
1216 struct usb_serial *serial = port->serial;
1217 const struct keyspan_device_details *d_details;
1218 int i, err;
1219 int baud_rate, device_port;
1220 struct urb *urb;
1221 unsigned int cflag = 0;
1222
1223 s_priv = usb_get_serial_data(serial);
1224 p_priv = usb_get_serial_port_data(port);
1225 d_details = p_priv->device_details;
1226
1227 dbg("%s - port%d.", __func__, port->number);
1228
1229 /* Set some sane defaults */
1230 p_priv->rts_state = 1;
1231 p_priv->dtr_state = 1;
1232 p_priv->baud = 9600;
1233
1234 /* force baud and lcr to be set on open */
1235 p_priv->old_baud = 0;
1236 p_priv->old_cflag = 0;
1237
1238 p_priv->out_flip = 0;
1239 p_priv->in_flip = 0;
1240
1241 /* Reset low level data toggle and start reading from endpoints */
1242 for (i = 0; i < 2; i++) {
1243 urb = p_priv->in_urbs[i];
1244 if (urb == NULL)
1245 continue;
1246 urb->dev = serial->dev;
1247
1248 /* make sure endpoint data toggle is synchronized
1249 with the device */
1250 usb_clear_halt(urb->dev, urb->pipe);
1251 err = usb_submit_urb(urb, GFP_KERNEL);
1252 if (err != 0)
1253 dbg("%s - submit urb %d failed (%d)",
1254 __func__, i, err);
1255 }
1256
1257 /* Reset low level data toggle on out endpoints */
1258 for (i = 0; i < 2; i++) {
1259 urb = p_priv->out_urbs[i];
1260 if (urb == NULL)
1261 continue;
1262 urb->dev = serial->dev;
1263 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1264 usb_pipeout(urb->pipe), 0); */
1265 }
1266
1267 /* get the terminal config for the setup message now so we don't
1268 * need to send 2 of them */
1269
1270 device_port = port->number - port->serial->minor;
1271 if (tty) {
1272 cflag = tty->termios->c_cflag;
1273 /* Baud rate calculation takes baud rate as an integer
1274 so other rates can be generated if desired. */
1275 baud_rate = tty_get_baud_rate(tty);
1276 /* If no match or invalid, leave as default */
1277 if (baud_rate >= 0
1278 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
1279 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1280 p_priv->baud = baud_rate;
1281 }
1282 }
1283 /* set CTS/RTS handshake etc. */
1284 p_priv->cflag = cflag;
1285 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1286
1287 keyspan_send_setup(port, 1);
1288 /* mdelay(100); */
1289 /* keyspan_set_termios(port, NULL); */
1290
1291 return 0;
1292 }
1293
1294 static inline void stop_urb(struct urb *urb)
1295 {
1296 if (urb && urb->status == -EINPROGRESS)
1297 usb_kill_urb(urb);
1298 }
1299
1300 static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1301 {
1302 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1303
1304 p_priv->rts_state = on;
1305 p_priv->dtr_state = on;
1306 keyspan_send_setup(port, 0);
1307 }
1308
1309 static void keyspan_close(struct usb_serial_port *port)
1310 {
1311 int i;
1312 struct usb_serial *serial = port->serial;
1313 struct keyspan_serial_private *s_priv;
1314 struct keyspan_port_private *p_priv;
1315
1316 dbg("%s", __func__);
1317 s_priv = usb_get_serial_data(serial);
1318 p_priv = usb_get_serial_port_data(port);
1319
1320 p_priv->rts_state = 0;
1321 p_priv->dtr_state = 0;
1322
1323 if (serial->dev) {
1324 keyspan_send_setup(port, 2);
1325 /* pilot-xfer seems to work best with this delay */
1326 mdelay(100);
1327 /* keyspan_set_termios(port, NULL); */
1328 }
1329
1330 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
1331 dbg("%s - urb in progress", __func__);
1332 }*/
1333
1334 p_priv->out_flip = 0;
1335 p_priv->in_flip = 0;
1336
1337 if (serial->dev) {
1338 /* Stop reading/writing urbs */
1339 stop_urb(p_priv->inack_urb);
1340 /* stop_urb(p_priv->outcont_urb); */
1341 for (i = 0; i < 2; i++) {
1342 stop_urb(p_priv->in_urbs[i]);
1343 stop_urb(p_priv->out_urbs[i]);
1344 }
1345 }
1346 }
1347
1348 /* download the firmware to a pre-renumeration device */
1349 static int keyspan_fake_startup(struct usb_serial *serial)
1350 {
1351 int response;
1352 const struct ihex_binrec *record;
1353 char *fw_name;
1354 const struct firmware *fw;
1355
1356 dbg("Keyspan startup version %04x product %04x",
1357 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1358 le16_to_cpu(serial->dev->descriptor.idProduct));
1359
1360 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1361 != 0x8000) {
1362 dbg("Firmware already loaded. Quitting.");
1363 return 1;
1364 }
1365
1366 /* Select firmware image on the basis of idProduct */
1367 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1368 case keyspan_usa28_pre_product_id:
1369 fw_name = "keyspan/usa28.fw";
1370 break;
1371
1372 case keyspan_usa28x_pre_product_id:
1373 fw_name = "keyspan/usa28x.fw";
1374 break;
1375
1376 case keyspan_usa28xa_pre_product_id:
1377 fw_name = "keyspan/usa28xa.fw";
1378 break;
1379
1380 case keyspan_usa28xb_pre_product_id:
1381 fw_name = "keyspan/usa28xb.fw";
1382 break;
1383
1384 case keyspan_usa19_pre_product_id:
1385 fw_name = "keyspan/usa19.fw";
1386 break;
1387
1388 case keyspan_usa19qi_pre_product_id:
1389 fw_name = "keyspan/usa19qi.fw";
1390 break;
1391
1392 case keyspan_mpr_pre_product_id:
1393 fw_name = "keyspan/mpr.fw";
1394 break;
1395
1396 case keyspan_usa19qw_pre_product_id:
1397 fw_name = "keyspan/usa19qw.fw";
1398 break;
1399
1400 case keyspan_usa18x_pre_product_id:
1401 fw_name = "keyspan/usa18x.fw";
1402 break;
1403
1404 case keyspan_usa19w_pre_product_id:
1405 fw_name = "keyspan/usa19w.fw";
1406 break;
1407
1408 case keyspan_usa49w_pre_product_id:
1409 fw_name = "keyspan/usa49w.fw";
1410 break;
1411
1412 case keyspan_usa49wlc_pre_product_id:
1413 fw_name = "keyspan/usa49wlc.fw";
1414 break;
1415
1416 default:
1417 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1418 le16_to_cpu(serial->dev->descriptor.idProduct));
1419 return 1;
1420 }
1421
1422 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
1423 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1424 return(1);
1425 }
1426
1427 dbg("Uploading Keyspan %s firmware.", fw_name);
1428
1429 /* download the firmware image */
1430 response = ezusb_set_reset(serial, 1);
1431
1432 record = (const struct ihex_binrec *)fw->data;
1433
1434 while (record) {
1435 response = ezusb_writememory(serial, be32_to_cpu(record->addr),
1436 (unsigned char *)record->data,
1437 be16_to_cpu(record->len), 0xa0);
1438 if (response < 0) {
1439 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
1440 response, be32_to_cpu(record->addr),
1441 record->data, be16_to_cpu(record->len));
1442 break;
1443 }
1444 record = ihex_next_binrec(record);
1445 }
1446 release_firmware(fw);
1447 /* bring device out of reset. Renumeration will occur in a
1448 moment and the new device will bind to the real driver */
1449 response = ezusb_set_reset(serial, 0);
1450
1451 /* we don't want this device to have a driver assigned to it. */
1452 return 1;
1453 }
1454
1455 /* Helper functions used by keyspan_setup_urbs */
1456 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1457 int endpoint)
1458 {
1459 struct usb_host_interface *iface_desc;
1460 struct usb_endpoint_descriptor *ep;
1461 int i;
1462
1463 iface_desc = serial->interface->cur_altsetting;
1464 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1465 ep = &iface_desc->endpoint[i].desc;
1466 if (ep->bEndpointAddress == endpoint)
1467 return ep;
1468 }
1469 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1470 "endpoint %x\n", endpoint);
1471 return NULL;
1472 }
1473
1474 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1475 int dir, void *ctx, char *buf, int len,
1476 void (*callback)(struct urb *))
1477 {
1478 struct urb *urb;
1479 struct usb_endpoint_descriptor const *ep_desc;
1480 char const *ep_type_name;
1481
1482 if (endpoint == -1)
1483 return NULL; /* endpoint not needed */
1484
1485 dbg("%s - alloc for endpoint %d.", __func__, endpoint);
1486 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1487 if (urb == NULL) {
1488 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
1489 return NULL;
1490 }
1491
1492 if (endpoint == 0) {
1493 /* control EP filled in when used */
1494 return urb;
1495 }
1496
1497 ep_desc = find_ep(serial, endpoint);
1498 if (!ep_desc) {
1499 /* leak the urb, something's wrong and the callers don't care */
1500 return urb;
1501 }
1502 if (usb_endpoint_xfer_int(ep_desc)) {
1503 ep_type_name = "INT";
1504 usb_fill_int_urb(urb, serial->dev,
1505 usb_sndintpipe(serial->dev, endpoint) | dir,
1506 buf, len, callback, ctx,
1507 ep_desc->bInterval);
1508 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1509 ep_type_name = "BULK";
1510 usb_fill_bulk_urb(urb, serial->dev,
1511 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1512 buf, len, callback, ctx);
1513 } else {
1514 dev_warn(&serial->interface->dev,
1515 "unsupported endpoint type %x\n",
1516 usb_endpoint_type(ep_desc));
1517 usb_free_urb(urb);
1518 return NULL;
1519 }
1520
1521 dbg("%s - using urb %p for %s endpoint %x",
1522 __func__, urb, ep_type_name, endpoint);
1523 return urb;
1524 }
1525
1526 static struct callbacks {
1527 void (*instat_callback)(struct urb *);
1528 void (*glocont_callback)(struct urb *);
1529 void (*indat_callback)(struct urb *);
1530 void (*outdat_callback)(struct urb *);
1531 void (*inack_callback)(struct urb *);
1532 void (*outcont_callback)(struct urb *);
1533 } keyspan_callbacks[] = {
1534 {
1535 /* msg_usa26 callbacks */
1536 .instat_callback = usa26_instat_callback,
1537 .glocont_callback = usa26_glocont_callback,
1538 .indat_callback = usa26_indat_callback,
1539 .outdat_callback = usa2x_outdat_callback,
1540 .inack_callback = usa26_inack_callback,
1541 .outcont_callback = usa26_outcont_callback,
1542 }, {
1543 /* msg_usa28 callbacks */
1544 .instat_callback = usa28_instat_callback,
1545 .glocont_callback = usa28_glocont_callback,
1546 .indat_callback = usa28_indat_callback,
1547 .outdat_callback = usa2x_outdat_callback,
1548 .inack_callback = usa28_inack_callback,
1549 .outcont_callback = usa28_outcont_callback,
1550 }, {
1551 /* msg_usa49 callbacks */
1552 .instat_callback = usa49_instat_callback,
1553 .glocont_callback = usa49_glocont_callback,
1554 .indat_callback = usa49_indat_callback,
1555 .outdat_callback = usa2x_outdat_callback,
1556 .inack_callback = usa49_inack_callback,
1557 .outcont_callback = usa49_outcont_callback,
1558 }, {
1559 /* msg_usa90 callbacks */
1560 .instat_callback = usa90_instat_callback,
1561 .glocont_callback = usa28_glocont_callback,
1562 .indat_callback = usa90_indat_callback,
1563 .outdat_callback = usa2x_outdat_callback,
1564 .inack_callback = usa28_inack_callback,
1565 .outcont_callback = usa90_outcont_callback,
1566 }, {
1567 /* msg_usa67 callbacks */
1568 .instat_callback = usa67_instat_callback,
1569 .glocont_callback = usa67_glocont_callback,
1570 .indat_callback = usa26_indat_callback,
1571 .outdat_callback = usa2x_outdat_callback,
1572 .inack_callback = usa26_inack_callback,
1573 .outcont_callback = usa26_outcont_callback,
1574 }
1575 };
1576
1577 /* Generic setup urbs function that uses
1578 data in device_details */
1579 static void keyspan_setup_urbs(struct usb_serial *serial)
1580 {
1581 int i, j;
1582 struct keyspan_serial_private *s_priv;
1583 const struct keyspan_device_details *d_details;
1584 struct usb_serial_port *port;
1585 struct keyspan_port_private *p_priv;
1586 struct callbacks *cback;
1587 int endp;
1588
1589 dbg("%s", __func__);
1590
1591 s_priv = usb_get_serial_data(serial);
1592 d_details = s_priv->device_details;
1593
1594 /* Setup values for the various callback routines */
1595 cback = &keyspan_callbacks[d_details->msg_format];
1596
1597 /* Allocate and set up urbs for each one that is in use,
1598 starting with instat endpoints */
1599 s_priv->instat_urb = keyspan_setup_urb
1600 (serial, d_details->instat_endpoint, USB_DIR_IN,
1601 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1602 cback->instat_callback);
1603
1604 s_priv->indat_urb = keyspan_setup_urb
1605 (serial, d_details->indat_endpoint, USB_DIR_IN,
1606 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1607 usa49wg_indat_callback);
1608
1609 s_priv->glocont_urb = keyspan_setup_urb
1610 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1611 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1612 cback->glocont_callback);
1613
1614 /* Setup endpoints for each port specific thing */
1615 for (i = 0; i < d_details->num_ports; i++) {
1616 port = serial->port[i];
1617 p_priv = usb_get_serial_port_data(port);
1618
1619 /* Do indat endpoints first, once for each flip */
1620 endp = d_details->indat_endpoints[i];
1621 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1622 p_priv->in_urbs[j] = keyspan_setup_urb
1623 (serial, endp, USB_DIR_IN, port,
1624 p_priv->in_buffer[j], 64,
1625 cback->indat_callback);
1626 }
1627 for (; j < 2; ++j)
1628 p_priv->in_urbs[j] = NULL;
1629
1630 /* outdat endpoints also have flip */
1631 endp = d_details->outdat_endpoints[i];
1632 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1633 p_priv->out_urbs[j] = keyspan_setup_urb
1634 (serial, endp, USB_DIR_OUT, port,
1635 p_priv->out_buffer[j], 64,
1636 cback->outdat_callback);
1637 }
1638 for (; j < 2; ++j)
1639 p_priv->out_urbs[j] = NULL;
1640
1641 /* inack endpoint */
1642 p_priv->inack_urb = keyspan_setup_urb
1643 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1644 port, p_priv->inack_buffer, 1, cback->inack_callback);
1645
1646 /* outcont endpoint */
1647 p_priv->outcont_urb = keyspan_setup_urb
1648 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1649 port, p_priv->outcont_buffer, 64,
1650 cback->outcont_callback);
1651 }
1652 }
1653
1654 /* usa19 function doesn't require prescaler */
1655 static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1656 u8 *rate_low, u8 *prescaler, int portnum)
1657 {
1658 u32 b16, /* baud rate times 16 (actual rate used internally) */
1659 div, /* divisor */
1660 cnt; /* inverse of divisor (programmed into 8051) */
1661
1662 dbg("%s - %d.", __func__, baud_rate);
1663
1664 /* prevent divide by zero... */
1665 b16 = baud_rate * 16L;
1666 if (b16 == 0)
1667 return KEYSPAN_INVALID_BAUD_RATE;
1668 /* Any "standard" rate over 57k6 is marginal on the USA-19
1669 as we run out of divisor resolution. */
1670 if (baud_rate > 57600)
1671 return KEYSPAN_INVALID_BAUD_RATE;
1672
1673 /* calculate the divisor and the counter (its inverse) */
1674 div = baudclk / b16;
1675 if (div == 0)
1676 return KEYSPAN_INVALID_BAUD_RATE;
1677 else
1678 cnt = 0 - div;
1679
1680 if (div > 0xffff)
1681 return KEYSPAN_INVALID_BAUD_RATE;
1682
1683 /* return the counter values if non-null */
1684 if (rate_low)
1685 *rate_low = (u8) (cnt & 0xff);
1686 if (rate_hi)
1687 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1688 if (rate_low && rate_hi)
1689 dbg("%s - %d %02x %02x.",
1690 __func__, baud_rate, *rate_hi, *rate_low);
1691 return KEYSPAN_BAUD_RATE_OK;
1692 }
1693
1694 /* usa19hs function doesn't require prescaler */
1695 static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1696 u8 *rate_low, u8 *prescaler, int portnum)
1697 {
1698 u32 b16, /* baud rate times 16 (actual rate used internally) */
1699 div; /* divisor */
1700
1701 dbg("%s - %d.", __func__, baud_rate);
1702
1703 /* prevent divide by zero... */
1704 b16 = baud_rate * 16L;
1705 if (b16 == 0)
1706 return KEYSPAN_INVALID_BAUD_RATE;
1707
1708 /* calculate the divisor */
1709 div = baudclk / b16;
1710 if (div == 0)
1711 return KEYSPAN_INVALID_BAUD_RATE;
1712
1713 if (div > 0xffff)
1714 return KEYSPAN_INVALID_BAUD_RATE;
1715
1716 /* return the counter values if non-null */
1717 if (rate_low)
1718 *rate_low = (u8) (div & 0xff);
1719
1720 if (rate_hi)
1721 *rate_hi = (u8) ((div >> 8) & 0xff);
1722
1723 if (rate_low && rate_hi)
1724 dbg("%s - %d %02x %02x.",
1725 __func__, baud_rate, *rate_hi, *rate_low);
1726
1727 return KEYSPAN_BAUD_RATE_OK;
1728 }
1729
1730 static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1731 u8 *rate_low, u8 *prescaler, int portnum)
1732 {
1733 u32 b16, /* baud rate times 16 (actual rate used internally) */
1734 clk, /* clock with 13/8 prescaler */
1735 div, /* divisor using 13/8 prescaler */
1736 res, /* resulting baud rate using 13/8 prescaler */
1737 diff, /* error using 13/8 prescaler */
1738 smallest_diff;
1739 u8 best_prescaler;
1740 int i;
1741
1742 dbg("%s - %d.", __func__, baud_rate);
1743
1744 /* prevent divide by zero */
1745 b16 = baud_rate * 16L;
1746 if (b16 == 0)
1747 return KEYSPAN_INVALID_BAUD_RATE;
1748
1749 /* Calculate prescaler by trying them all and looking
1750 for best fit */
1751
1752 /* start with largest possible difference */
1753 smallest_diff = 0xffffffff;
1754
1755 /* 0 is an invalid prescaler, used as a flag */
1756 best_prescaler = 0;
1757
1758 for (i = 8; i <= 0xff; ++i) {
1759 clk = (baudclk * 8) / (u32) i;
1760
1761 div = clk / b16;
1762 if (div == 0)
1763 continue;
1764
1765 res = clk / div;
1766 diff = (res > b16) ? (res-b16) : (b16-res);
1767
1768 if (diff < smallest_diff) {
1769 best_prescaler = i;
1770 smallest_diff = diff;
1771 }
1772 }
1773
1774 if (best_prescaler == 0)
1775 return KEYSPAN_INVALID_BAUD_RATE;
1776
1777 clk = (baudclk * 8) / (u32) best_prescaler;
1778 div = clk / b16;
1779
1780 /* return the divisor and prescaler if non-null */
1781 if (rate_low)
1782 *rate_low = (u8) (div & 0xff);
1783 if (rate_hi)
1784 *rate_hi = (u8) ((div >> 8) & 0xff);
1785 if (prescaler) {
1786 *prescaler = best_prescaler;
1787 /* dbg("%s - %d %d", __func__, *prescaler, div); */
1788 }
1789 return KEYSPAN_BAUD_RATE_OK;
1790 }
1791
1792 /* USA-28 supports different maximum baud rates on each port */
1793 static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1794 u8 *rate_low, u8 *prescaler, int portnum)
1795 {
1796 u32 b16, /* baud rate times 16 (actual rate used internally) */
1797 div, /* divisor */
1798 cnt; /* inverse of divisor (programmed into 8051) */
1799
1800 dbg("%s - %d.", __func__, baud_rate);
1801
1802 /* prevent divide by zero */
1803 b16 = baud_rate * 16L;
1804 if (b16 == 0)
1805 return KEYSPAN_INVALID_BAUD_RATE;
1806
1807 /* calculate the divisor and the counter (its inverse) */
1808 div = KEYSPAN_USA28_BAUDCLK / b16;
1809 if (div == 0)
1810 return KEYSPAN_INVALID_BAUD_RATE;
1811 else
1812 cnt = 0 - div;
1813
1814 /* check for out of range, based on portnum,
1815 and return result */
1816 if (portnum == 0) {
1817 if (div > 0xffff)
1818 return KEYSPAN_INVALID_BAUD_RATE;
1819 } else {
1820 if (portnum == 1) {
1821 if (div > 0xff)
1822 return KEYSPAN_INVALID_BAUD_RATE;
1823 } else
1824 return KEYSPAN_INVALID_BAUD_RATE;
1825 }
1826
1827 /* return the counter values if not NULL
1828 (port 1 will ignore retHi) */
1829 if (rate_low)
1830 *rate_low = (u8) (cnt & 0xff);
1831 if (rate_hi)
1832 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1833 dbg("%s - %d OK.", __func__, baud_rate);
1834 return KEYSPAN_BAUD_RATE_OK;
1835 }
1836
1837 static int keyspan_usa26_send_setup(struct usb_serial *serial,
1838 struct usb_serial_port *port,
1839 int reset_port)
1840 {
1841 struct keyspan_usa26_portControlMessage msg;
1842 struct keyspan_serial_private *s_priv;
1843 struct keyspan_port_private *p_priv;
1844 const struct keyspan_device_details *d_details;
1845 int outcont_urb;
1846 struct urb *this_urb;
1847 int device_port, err;
1848
1849 dbg("%s reset=%d", __func__, reset_port);
1850
1851 s_priv = usb_get_serial_data(serial);
1852 p_priv = usb_get_serial_port_data(port);
1853 d_details = s_priv->device_details;
1854 device_port = port->number - port->serial->minor;
1855
1856 outcont_urb = d_details->outcont_endpoints[port->number];
1857 this_urb = p_priv->outcont_urb;
1858
1859 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
1860
1861 /* Make sure we have an urb then send the message */
1862 if (this_urb == NULL) {
1863 dbg("%s - oops no urb.", __func__);
1864 return -1;
1865 }
1866
1867 /* Save reset port val for resend.
1868 Don't overwrite resend for open/close condition. */
1869 if ((reset_port + 1) > p_priv->resend_cont)
1870 p_priv->resend_cont = reset_port + 1;
1871 if (this_urb->status == -EINPROGRESS) {
1872 /* dbg("%s - already writing", __func__); */
1873 mdelay(5);
1874 return -1;
1875 }
1876
1877 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
1878
1879 /* Only set baud rate if it's changed */
1880 if (p_priv->old_baud != p_priv->baud) {
1881 p_priv->old_baud = p_priv->baud;
1882 msg.setClocking = 0xff;
1883 if (d_details->calculate_baud_rate
1884 (p_priv->baud, d_details->baudclk, &msg.baudHi,
1885 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
1886 dbg("%s - Invalid baud rate %d requested, using 9600.",
1887 __func__, p_priv->baud);
1888 msg.baudLo = 0;
1889 msg.baudHi = 125; /* Values for 9600 baud */
1890 msg.prescaler = 10;
1891 }
1892 msg.setPrescaler = 0xff;
1893 }
1894
1895 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1896 switch (p_priv->cflag & CSIZE) {
1897 case CS5:
1898 msg.lcr |= USA_DATABITS_5;
1899 break;
1900 case CS6:
1901 msg.lcr |= USA_DATABITS_6;
1902 break;
1903 case CS7:
1904 msg.lcr |= USA_DATABITS_7;
1905 break;
1906 case CS8:
1907 msg.lcr |= USA_DATABITS_8;
1908 break;
1909 }
1910 if (p_priv->cflag & PARENB) {
1911 /* note USA_PARITY_NONE == 0 */
1912 msg.lcr |= (p_priv->cflag & PARODD)?
1913 USA_PARITY_ODD : USA_PARITY_EVEN;
1914 }
1915 msg.setLcr = 0xff;
1916
1917 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1918 msg.xonFlowControl = 0;
1919 msg.setFlowControl = 0xff;
1920 msg.forwardingLength = 16;
1921 msg.xonChar = 17;
1922 msg.xoffChar = 19;
1923
1924 /* Opening port */
1925 if (reset_port == 1) {
1926 msg._txOn = 1;
1927 msg._txOff = 0;
1928 msg.txFlush = 0;
1929 msg.txBreak = 0;
1930 msg.rxOn = 1;
1931 msg.rxOff = 0;
1932 msg.rxFlush = 1;
1933 msg.rxForward = 0;
1934 msg.returnStatus = 0;
1935 msg.resetDataToggle = 0xff;
1936 }
1937
1938 /* Closing port */
1939 else if (reset_port == 2) {
1940 msg._txOn = 0;
1941 msg._txOff = 1;
1942 msg.txFlush = 0;
1943 msg.txBreak = 0;
1944 msg.rxOn = 0;
1945 msg.rxOff = 1;
1946 msg.rxFlush = 1;
1947 msg.rxForward = 0;
1948 msg.returnStatus = 0;
1949 msg.resetDataToggle = 0;
1950 }
1951
1952 /* Sending intermediate configs */
1953 else {
1954 msg._txOn = (!p_priv->break_on);
1955 msg._txOff = 0;
1956 msg.txFlush = 0;
1957 msg.txBreak = (p_priv->break_on);
1958 msg.rxOn = 0;
1959 msg.rxOff = 0;
1960 msg.rxFlush = 0;
1961 msg.rxForward = 0;
1962 msg.returnStatus = 0;
1963 msg.resetDataToggle = 0x0;
1964 }
1965
1966 /* Do handshaking outputs */
1967 msg.setTxTriState_setRts = 0xff;
1968 msg.txTriState_rts = p_priv->rts_state;
1969
1970 msg.setHskoa_setDtr = 0xff;
1971 msg.hskoa_dtr = p_priv->dtr_state;
1972
1973 p_priv->resend_cont = 0;
1974 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1975
1976 /* send the data out the device on control endpoint */
1977 this_urb->transfer_buffer_length = sizeof(msg);
1978
1979 this_urb->dev = serial->dev;
1980 err = usb_submit_urb(this_urb, GFP_ATOMIC);
1981 if (err != 0)
1982 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
1983 #if 0
1984 else {
1985 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
1986 outcont_urb, this_urb->transfer_buffer_length,
1987 usb_pipeendpoint(this_urb->pipe));
1988 }
1989 #endif
1990
1991 return 0;
1992 }
1993
1994 static int keyspan_usa28_send_setup(struct usb_serial *serial,
1995 struct usb_serial_port *port,
1996 int reset_port)
1997 {
1998 struct keyspan_usa28_portControlMessage msg;
1999 struct keyspan_serial_private *s_priv;
2000 struct keyspan_port_private *p_priv;
2001 const struct keyspan_device_details *d_details;
2002 struct urb *this_urb;
2003 int device_port, err;
2004
2005 dbg("%s", __func__);
2006
2007 s_priv = usb_get_serial_data(serial);
2008 p_priv = usb_get_serial_port_data(port);
2009 d_details = s_priv->device_details;
2010 device_port = port->number - port->serial->minor;
2011
2012 /* only do something if we have a bulk out endpoint */
2013 this_urb = p_priv->outcont_urb;
2014 if (this_urb == NULL) {
2015 dbg("%s - oops no urb.", __func__);
2016 return -1;
2017 }
2018
2019 /* Save reset port val for resend.
2020 Don't overwrite resend for open/close condition. */
2021 if ((reset_port + 1) > p_priv->resend_cont)
2022 p_priv->resend_cont = reset_port + 1;
2023 if (this_urb->status == -EINPROGRESS) {
2024 dbg("%s already writing", __func__);
2025 mdelay(5);
2026 return -1;
2027 }
2028
2029 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2030
2031 msg.setBaudRate = 1;
2032 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2033 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2034 dbg("%s - Invalid baud rate requested %d.",
2035 __func__, p_priv->baud);
2036 msg.baudLo = 0xff;
2037 msg.baudHi = 0xb2; /* Values for 9600 baud */
2038 }
2039
2040 /* If parity is enabled, we must calculate it ourselves. */
2041 msg.parity = 0; /* XXX for now */
2042
2043 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2044 msg.xonFlowControl = 0;
2045
2046 /* Do handshaking outputs, DTR is inverted relative to RTS */
2047 msg.rts = p_priv->rts_state;
2048 msg.dtr = p_priv->dtr_state;
2049
2050 msg.forwardingLength = 16;
2051 msg.forwardMs = 10;
2052 msg.breakThreshold = 45;
2053 msg.xonChar = 17;
2054 msg.xoffChar = 19;
2055
2056 /*msg.returnStatus = 1;
2057 msg.resetDataToggle = 0xff;*/
2058 /* Opening port */
2059 if (reset_port == 1) {
2060 msg._txOn = 1;
2061 msg._txOff = 0;
2062 msg.txFlush = 0;
2063 msg.txForceXoff = 0;
2064 msg.txBreak = 0;
2065 msg.rxOn = 1;
2066 msg.rxOff = 0;
2067 msg.rxFlush = 1;
2068 msg.rxForward = 0;
2069 msg.returnStatus = 0;
2070 msg.resetDataToggle = 0xff;
2071 }
2072 /* Closing port */
2073 else if (reset_port == 2) {
2074 msg._txOn = 0;
2075 msg._txOff = 1;
2076 msg.txFlush = 0;
2077 msg.txForceXoff = 0;
2078 msg.txBreak = 0;
2079 msg.rxOn = 0;
2080 msg.rxOff = 1;
2081 msg.rxFlush = 1;
2082 msg.rxForward = 0;
2083 msg.returnStatus = 0;
2084 msg.resetDataToggle = 0;
2085 }
2086 /* Sending intermediate configs */
2087 else {
2088 msg._txOn = (!p_priv->break_on);
2089 msg._txOff = 0;
2090 msg.txFlush = 0;
2091 msg.txForceXoff = 0;
2092 msg.txBreak = (p_priv->break_on);
2093 msg.rxOn = 0;
2094 msg.rxOff = 0;
2095 msg.rxFlush = 0;
2096 msg.rxForward = 0;
2097 msg.returnStatus = 0;
2098 msg.resetDataToggle = 0x0;
2099 }
2100
2101 p_priv->resend_cont = 0;
2102 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2103
2104 /* send the data out the device on control endpoint */
2105 this_urb->transfer_buffer_length = sizeof(msg);
2106
2107 this_urb->dev = serial->dev;
2108 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2109 if (err != 0)
2110 dbg("%s - usb_submit_urb(setup) failed", __func__);
2111 #if 0
2112 else {
2113 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
2114 this_urb->transfer_buffer_length);
2115 }
2116 #endif
2117
2118 return 0;
2119 }
2120
2121 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2122 struct usb_serial_port *port,
2123 int reset_port)
2124 {
2125 struct keyspan_usa49_portControlMessage msg;
2126 struct usb_ctrlrequest *dr = NULL;
2127 struct keyspan_serial_private *s_priv;
2128 struct keyspan_port_private *p_priv;
2129 const struct keyspan_device_details *d_details;
2130 struct urb *this_urb;
2131 int err, device_port;
2132
2133 dbg("%s", __func__);
2134
2135 s_priv = usb_get_serial_data(serial);
2136 p_priv = usb_get_serial_port_data(port);
2137 d_details = s_priv->device_details;
2138
2139 this_urb = s_priv->glocont_urb;
2140
2141 /* Work out which port within the device is being setup */
2142 device_port = port->number - port->serial->minor;
2143
2144 dbg("%s - endpoint %d port %d (%d)",
2145 __func__, usb_pipeendpoint(this_urb->pipe),
2146 port->number, device_port);
2147
2148 /* Make sure we have an urb then send the message */
2149 if (this_urb == NULL) {
2150 dbg("%s - oops no urb for port %d.", __func__, port->number);
2151 return -1;
2152 }
2153
2154 /* Save reset port val for resend.
2155 Don't overwrite resend for open/close condition. */
2156 if ((reset_port + 1) > p_priv->resend_cont)
2157 p_priv->resend_cont = reset_port + 1;
2158
2159 if (this_urb->status == -EINPROGRESS) {
2160 /* dbg("%s - already writing", __func__); */
2161 mdelay(5);
2162 return -1;
2163 }
2164
2165 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2166
2167 /*msg.portNumber = port->number;*/
2168 msg.portNumber = device_port;
2169
2170 /* Only set baud rate if it's changed */
2171 if (p_priv->old_baud != p_priv->baud) {
2172 p_priv->old_baud = p_priv->baud;
2173 msg.setClocking = 0xff;
2174 if (d_details->calculate_baud_rate
2175 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2176 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2177 dbg("%s - Invalid baud rate %d requested, using 9600.",
2178 __func__, p_priv->baud);
2179 msg.baudLo = 0;
2180 msg.baudHi = 125; /* Values for 9600 baud */
2181 msg.prescaler = 10;
2182 }
2183 /* msg.setPrescaler = 0xff; */
2184 }
2185
2186 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2187 switch (p_priv->cflag & CSIZE) {
2188 case CS5:
2189 msg.lcr |= USA_DATABITS_5;
2190 break;
2191 case CS6:
2192 msg.lcr |= USA_DATABITS_6;
2193 break;
2194 case CS7:
2195 msg.lcr |= USA_DATABITS_7;
2196 break;
2197 case CS8:
2198 msg.lcr |= USA_DATABITS_8;
2199 break;
2200 }
2201 if (p_priv->cflag & PARENB) {
2202 /* note USA_PARITY_NONE == 0 */
2203 msg.lcr |= (p_priv->cflag & PARODD)?
2204 USA_PARITY_ODD : USA_PARITY_EVEN;
2205 }
2206 msg.setLcr = 0xff;
2207
2208 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2209 msg.xonFlowControl = 0;
2210 msg.setFlowControl = 0xff;
2211
2212 msg.forwardingLength = 16;
2213 msg.xonChar = 17;
2214 msg.xoffChar = 19;
2215
2216 /* Opening port */
2217 if (reset_port == 1) {
2218 msg._txOn = 1;
2219 msg._txOff = 0;
2220 msg.txFlush = 0;
2221 msg.txBreak = 0;
2222 msg.rxOn = 1;
2223 msg.rxOff = 0;
2224 msg.rxFlush = 1;
2225 msg.rxForward = 0;
2226 msg.returnStatus = 0;
2227 msg.resetDataToggle = 0xff;
2228 msg.enablePort = 1;
2229 msg.disablePort = 0;
2230 }
2231 /* Closing port */
2232 else if (reset_port == 2) {
2233 msg._txOn = 0;
2234 msg._txOff = 1;
2235 msg.txFlush = 0;
2236 msg.txBreak = 0;
2237 msg.rxOn = 0;
2238 msg.rxOff = 1;
2239 msg.rxFlush = 1;
2240 msg.rxForward = 0;
2241 msg.returnStatus = 0;
2242 msg.resetDataToggle = 0;
2243 msg.enablePort = 0;
2244 msg.disablePort = 1;
2245 }
2246 /* Sending intermediate configs */
2247 else {
2248 msg._txOn = (!p_priv->break_on);
2249 msg._txOff = 0;
2250 msg.txFlush = 0;
2251 msg.txBreak = (p_priv->break_on);
2252 msg.rxOn = 0;
2253 msg.rxOff = 0;
2254 msg.rxFlush = 0;
2255 msg.rxForward = 0;
2256 msg.returnStatus = 0;
2257 msg.resetDataToggle = 0x0;
2258 msg.enablePort = 0;
2259 msg.disablePort = 0;
2260 }
2261
2262 /* Do handshaking outputs */
2263 msg.setRts = 0xff;
2264 msg.rts = p_priv->rts_state;
2265
2266 msg.setDtr = 0xff;
2267 msg.dtr = p_priv->dtr_state;
2268
2269 p_priv->resend_cont = 0;
2270
2271 /* if the device is a 49wg, we send control message on usb
2272 control EP 0 */
2273
2274 if (d_details->product_id == keyspan_usa49wg_product_id) {
2275 dr = (void *)(s_priv->ctrl_buf);
2276 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2277 dr->bRequest = 0xB0; /* 49wg control message */;
2278 dr->wValue = 0;
2279 dr->wIndex = 0;
2280 dr->wLength = cpu_to_le16(sizeof(msg));
2281
2282 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2283
2284 usb_fill_control_urb(this_urb, serial->dev,
2285 usb_sndctrlpipe(serial->dev, 0),
2286 (unsigned char *)dr, s_priv->glocont_buf,
2287 sizeof(msg), usa49_glocont_callback, serial);
2288
2289 } else {
2290 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2291
2292 /* send the data out the device on control endpoint */
2293 this_urb->transfer_buffer_length = sizeof(msg);
2294
2295 this_urb->dev = serial->dev;
2296 }
2297 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2298 if (err != 0)
2299 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2300 #if 0
2301 else {
2302 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
2303 outcont_urb, this_urb->transfer_buffer_length,
2304 usb_pipeendpoint(this_urb->pipe));
2305 }
2306 #endif
2307
2308 return 0;
2309 }
2310
2311 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2312 struct usb_serial_port *port,
2313 int reset_port)
2314 {
2315 struct keyspan_usa90_portControlMessage msg;
2316 struct keyspan_serial_private *s_priv;
2317 struct keyspan_port_private *p_priv;
2318 const struct keyspan_device_details *d_details;
2319 struct urb *this_urb;
2320 int err;
2321 u8 prescaler;
2322
2323 dbg("%s", __func__);
2324
2325 s_priv = usb_get_serial_data(serial);
2326 p_priv = usb_get_serial_port_data(port);
2327 d_details = s_priv->device_details;
2328
2329 /* only do something if we have a bulk out endpoint */
2330 this_urb = p_priv->outcont_urb;
2331 if (this_urb == NULL) {
2332 dbg("%s - oops no urb.", __func__);
2333 return -1;
2334 }
2335
2336 /* Save reset port val for resend.
2337 Don't overwrite resend for open/close condition. */
2338 if ((reset_port + 1) > p_priv->resend_cont)
2339 p_priv->resend_cont = reset_port + 1;
2340 if (this_urb->status == -EINPROGRESS) {
2341 dbg("%s already writing", __func__);
2342 mdelay(5);
2343 return -1;
2344 }
2345
2346 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2347
2348 /* Only set baud rate if it's changed */
2349 if (p_priv->old_baud != p_priv->baud) {
2350 p_priv->old_baud = p_priv->baud;
2351 msg.setClocking = 0x01;
2352 if (d_details->calculate_baud_rate
2353 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2354 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2355 dbg("%s - Invalid baud rate %d requested, using 9600.",
2356 __func__, p_priv->baud);
2357 p_priv->baud = 9600;
2358 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2359 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2360 }
2361 msg.setRxMode = 1;
2362 msg.setTxMode = 1;
2363 }
2364
2365 /* modes must always be correctly specified */
2366 if (p_priv->baud > 57600) {
2367 msg.rxMode = RXMODE_DMA;
2368 msg.txMode = TXMODE_DMA;
2369 } else {
2370 msg.rxMode = RXMODE_BYHAND;
2371 msg.txMode = TXMODE_BYHAND;
2372 }
2373
2374 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2375 switch (p_priv->cflag & CSIZE) {
2376 case CS5:
2377 msg.lcr |= USA_DATABITS_5;
2378 break;
2379 case CS6:
2380 msg.lcr |= USA_DATABITS_6;
2381 break;
2382 case CS7:
2383 msg.lcr |= USA_DATABITS_7;
2384 break;
2385 case CS8:
2386 msg.lcr |= USA_DATABITS_8;
2387 break;
2388 }
2389 if (p_priv->cflag & PARENB) {
2390 /* note USA_PARITY_NONE == 0 */
2391 msg.lcr |= (p_priv->cflag & PARODD)?
2392 USA_PARITY_ODD : USA_PARITY_EVEN;
2393 }
2394 if (p_priv->old_cflag != p_priv->cflag) {
2395 p_priv->old_cflag = p_priv->cflag;
2396 msg.setLcr = 0x01;
2397 }
2398
2399 if (p_priv->flow_control == flow_cts)
2400 msg.txFlowControl = TXFLOW_CTS;
2401 msg.setTxFlowControl = 0x01;
2402 msg.setRxFlowControl = 0x01;
2403
2404 msg.rxForwardingLength = 16;
2405 msg.rxForwardingTimeout = 16;
2406 msg.txAckSetting = 0;
2407 msg.xonChar = 17;
2408 msg.xoffChar = 19;
2409
2410 /* Opening port */
2411 if (reset_port == 1) {
2412 msg.portEnabled = 1;
2413 msg.rxFlush = 1;
2414 msg.txBreak = (p_priv->break_on);
2415 }
2416 /* Closing port */
2417 else if (reset_port == 2)
2418 msg.portEnabled = 0;
2419 /* Sending intermediate configs */
2420 else {
2421 if (port->port.count)
2422 msg.portEnabled = 1;
2423 msg.txBreak = (p_priv->break_on);
2424 }
2425
2426 /* Do handshaking outputs */
2427 msg.setRts = 0x01;
2428 msg.rts = p_priv->rts_state;
2429
2430 msg.setDtr = 0x01;
2431 msg.dtr = p_priv->dtr_state;
2432
2433 p_priv->resend_cont = 0;
2434 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2435
2436 /* send the data out the device on control endpoint */
2437 this_urb->transfer_buffer_length = sizeof(msg);
2438
2439 this_urb->dev = serial->dev;
2440 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2441 if (err != 0)
2442 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2443 return 0;
2444 }
2445
2446 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2447 struct usb_serial_port *port,
2448 int reset_port)
2449 {
2450 struct keyspan_usa67_portControlMessage msg;
2451 struct keyspan_serial_private *s_priv;
2452 struct keyspan_port_private *p_priv;
2453 const struct keyspan_device_details *d_details;
2454 struct urb *this_urb;
2455 int err, device_port;
2456
2457 dbg("%s", __func__);
2458
2459 s_priv = usb_get_serial_data(serial);
2460 p_priv = usb_get_serial_port_data(port);
2461 d_details = s_priv->device_details;
2462
2463 this_urb = s_priv->glocont_urb;
2464
2465 /* Work out which port within the device is being setup */
2466 device_port = port->number - port->serial->minor;
2467
2468 /* Make sure we have an urb then send the message */
2469 if (this_urb == NULL) {
2470 dbg("%s - oops no urb for port %d.", __func__,
2471 port->number);
2472 return -1;
2473 }
2474
2475 /* Save reset port val for resend.
2476 Don't overwrite resend for open/close condition. */
2477 if ((reset_port + 1) > p_priv->resend_cont)
2478 p_priv->resend_cont = reset_port + 1;
2479 if (this_urb->status == -EINPROGRESS) {
2480 /* dbg("%s - already writing", __func__); */
2481 mdelay(5);
2482 return -1;
2483 }
2484
2485 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2486
2487 msg.port = device_port;
2488
2489 /* Only set baud rate if it's changed */
2490 if (p_priv->old_baud != p_priv->baud) {
2491 p_priv->old_baud = p_priv->baud;
2492 msg.setClocking = 0xff;
2493 if (d_details->calculate_baud_rate
2494 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2495 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2496 dbg("%s - Invalid baud rate %d requested, using 9600.",
2497 __func__, p_priv->baud);
2498 msg.baudLo = 0;
2499 msg.baudHi = 125; /* Values for 9600 baud */
2500 msg.prescaler = 10;
2501 }
2502 msg.setPrescaler = 0xff;
2503 }
2504
2505 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2506 switch (p_priv->cflag & CSIZE) {
2507 case CS5:
2508 msg.lcr |= USA_DATABITS_5;
2509 break;
2510 case CS6:
2511 msg.lcr |= USA_DATABITS_6;
2512 break;
2513 case CS7:
2514 msg.lcr |= USA_DATABITS_7;
2515 break;
2516 case CS8:
2517 msg.lcr |= USA_DATABITS_8;
2518 break;
2519 }
2520 if (p_priv->cflag & PARENB) {
2521 /* note USA_PARITY_NONE == 0 */
2522 msg.lcr |= (p_priv->cflag & PARODD)?
2523 USA_PARITY_ODD : USA_PARITY_EVEN;
2524 }
2525 msg.setLcr = 0xff;
2526
2527 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2528 msg.xonFlowControl = 0;
2529 msg.setFlowControl = 0xff;
2530 msg.forwardingLength = 16;
2531 msg.xonChar = 17;
2532 msg.xoffChar = 19;
2533
2534 if (reset_port == 1) {
2535 /* Opening port */
2536 msg._txOn = 1;
2537 msg._txOff = 0;
2538 msg.txFlush = 0;
2539 msg.txBreak = 0;
2540 msg.rxOn = 1;
2541 msg.rxOff = 0;
2542 msg.rxFlush = 1;
2543 msg.rxForward = 0;
2544 msg.returnStatus = 0;
2545 msg.resetDataToggle = 0xff;
2546 } else if (reset_port == 2) {
2547 /* Closing port */
2548 msg._txOn = 0;
2549 msg._txOff = 1;
2550 msg.txFlush = 0;
2551 msg.txBreak = 0;
2552 msg.rxOn = 0;
2553 msg.rxOff = 1;
2554 msg.rxFlush = 1;
2555 msg.rxForward = 0;
2556 msg.returnStatus = 0;
2557 msg.resetDataToggle = 0;
2558 } else {
2559 /* Sending intermediate configs */
2560 msg._txOn = (!p_priv->break_on);
2561 msg._txOff = 0;
2562 msg.txFlush = 0;
2563 msg.txBreak = (p_priv->break_on);
2564 msg.rxOn = 0;
2565 msg.rxOff = 0;
2566 msg.rxFlush = 0;
2567 msg.rxForward = 0;
2568 msg.returnStatus = 0;
2569 msg.resetDataToggle = 0x0;
2570 }
2571
2572 /* Do handshaking outputs */
2573 msg.setTxTriState_setRts = 0xff;
2574 msg.txTriState_rts = p_priv->rts_state;
2575
2576 msg.setHskoa_setDtr = 0xff;
2577 msg.hskoa_dtr = p_priv->dtr_state;
2578
2579 p_priv->resend_cont = 0;
2580
2581 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2582
2583 /* send the data out the device on control endpoint */
2584 this_urb->transfer_buffer_length = sizeof(msg);
2585 this_urb->dev = serial->dev;
2586
2587 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2588 if (err != 0)
2589 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
2590 err);
2591 return 0;
2592 }
2593
2594 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2595 {
2596 struct usb_serial *serial = port->serial;
2597 struct keyspan_serial_private *s_priv;
2598 const struct keyspan_device_details *d_details;
2599
2600 dbg("%s", __func__);
2601
2602 s_priv = usb_get_serial_data(serial);
2603 d_details = s_priv->device_details;
2604
2605 switch (d_details->msg_format) {
2606 case msg_usa26:
2607 keyspan_usa26_send_setup(serial, port, reset_port);
2608 break;
2609 case msg_usa28:
2610 keyspan_usa28_send_setup(serial, port, reset_port);
2611 break;
2612 case msg_usa49:
2613 keyspan_usa49_send_setup(serial, port, reset_port);
2614 break;
2615 case msg_usa90:
2616 keyspan_usa90_send_setup(serial, port, reset_port);
2617 break;
2618 case msg_usa67:
2619 keyspan_usa67_send_setup(serial, port, reset_port);
2620 break;
2621 }
2622 }
2623
2624
2625 /* Gets called by the "real" driver (ie once firmware is loaded
2626 and renumeration has taken place. */
2627 static int keyspan_startup(struct usb_serial *serial)
2628 {
2629 int i, err;
2630 struct usb_serial_port *port;
2631 struct keyspan_serial_private *s_priv;
2632 struct keyspan_port_private *p_priv;
2633 const struct keyspan_device_details *d_details;
2634
2635 dbg("%s", __func__);
2636
2637 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2638 if (d_details->product_id ==
2639 le16_to_cpu(serial->dev->descriptor.idProduct))
2640 break;
2641 if (d_details == NULL) {
2642 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2643 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2644 return 1;
2645 }
2646
2647 /* Setup private data for serial driver */
2648 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2649 if (!s_priv) {
2650 dbg("%s - kmalloc for keyspan_serial_private failed.",
2651 __func__);
2652 return -ENOMEM;
2653 }
2654
2655 s_priv->device_details = d_details;
2656 usb_set_serial_data(serial, s_priv);
2657
2658 /* Now setup per port private data */
2659 for (i = 0; i < serial->num_ports; i++) {
2660 port = serial->port[i];
2661 p_priv = kzalloc(sizeof(struct keyspan_port_private),
2662 GFP_KERNEL);
2663 if (!p_priv) {
2664 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
2665 return 1;
2666 }
2667 p_priv->device_details = d_details;
2668 usb_set_serial_port_data(port, p_priv);
2669 }
2670
2671 keyspan_setup_urbs(serial);
2672
2673 if (s_priv->instat_urb != NULL) {
2674 s_priv->instat_urb->dev = serial->dev;
2675 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2676 if (err != 0)
2677 dbg("%s - submit instat urb failed %d", __func__,
2678 err);
2679 }
2680 if (s_priv->indat_urb != NULL) {
2681 s_priv->indat_urb->dev = serial->dev;
2682 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2683 if (err != 0)
2684 dbg("%s - submit indat urb failed %d", __func__,
2685 err);
2686 }
2687
2688 return 0;
2689 }
2690
2691 static void keyspan_disconnect(struct usb_serial *serial)
2692 {
2693 int i, j;
2694 struct usb_serial_port *port;
2695 struct keyspan_serial_private *s_priv;
2696 struct keyspan_port_private *p_priv;
2697
2698 dbg("%s", __func__);
2699
2700 s_priv = usb_get_serial_data(serial);
2701
2702 /* Stop reading/writing urbs */
2703 stop_urb(s_priv->instat_urb);
2704 stop_urb(s_priv->glocont_urb);
2705 stop_urb(s_priv->indat_urb);
2706 for (i = 0; i < serial->num_ports; ++i) {
2707 port = serial->port[i];
2708 p_priv = usb_get_serial_port_data(port);
2709 stop_urb(p_priv->inack_urb);
2710 stop_urb(p_priv->outcont_urb);
2711 for (j = 0; j < 2; j++) {
2712 stop_urb(p_priv->in_urbs[j]);
2713 stop_urb(p_priv->out_urbs[j]);
2714 }
2715 }
2716
2717 /* Now free them */
2718 usb_free_urb(s_priv->instat_urb);
2719 usb_free_urb(s_priv->indat_urb);
2720 usb_free_urb(s_priv->glocont_urb);
2721 for (i = 0; i < serial->num_ports; ++i) {
2722 port = serial->port[i];
2723 p_priv = usb_get_serial_port_data(port);
2724 usb_free_urb(p_priv->inack_urb);
2725 usb_free_urb(p_priv->outcont_urb);
2726 for (j = 0; j < 2; j++) {
2727 usb_free_urb(p_priv->in_urbs[j]);
2728 usb_free_urb(p_priv->out_urbs[j]);
2729 }
2730 }
2731 }
2732
2733 static void keyspan_release(struct usb_serial *serial)
2734 {
2735 int i;
2736 struct usb_serial_port *port;
2737 struct keyspan_serial_private *s_priv;
2738
2739 dbg("%s", __func__);
2740
2741 s_priv = usb_get_serial_data(serial);
2742
2743 /* dbg("Freeing serial->private."); */
2744 kfree(s_priv);
2745
2746 /* dbg("Freeing port->private."); */
2747 /* Now free per port private data */
2748 for (i = 0; i < serial->num_ports; i++) {
2749 port = serial->port[i];
2750 kfree(usb_get_serial_port_data(port));
2751 }
2752 }
2753
2754 MODULE_AUTHOR(DRIVER_AUTHOR);
2755 MODULE_DESCRIPTION(DRIVER_DESC);
2756 MODULE_LICENSE("GPL");
2757
2758 MODULE_FIRMWARE("keyspan/usa28.fw");
2759 MODULE_FIRMWARE("keyspan/usa28x.fw");
2760 MODULE_FIRMWARE("keyspan/usa28xa.fw");
2761 MODULE_FIRMWARE("keyspan/usa28xb.fw");
2762 MODULE_FIRMWARE("keyspan/usa19.fw");
2763 MODULE_FIRMWARE("keyspan/usa19qi.fw");
2764 MODULE_FIRMWARE("keyspan/mpr.fw");
2765 MODULE_FIRMWARE("keyspan/usa19qw.fw");
2766 MODULE_FIRMWARE("keyspan/usa18x.fw");
2767 MODULE_FIRMWARE("keyspan/usa19w.fw");
2768 MODULE_FIRMWARE("keyspan/usa49w.fw");
2769 MODULE_FIRMWARE("keyspan/usa49wlc.fw");
2770
2771 module_param(debug, bool, S_IRUGO | S_IWUSR);
2772 MODULE_PARM_DESC(debug, "Debug enabled or not");
2773
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree