2 Keyspan USB to Serial Converter driver
4 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
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.
12 See http://misc.nu/hugh/keyspan.html for more information.
14 Code in this driver inspired by and in a number of places taken
15 from Brian Warner's original Keyspan-PDA driver.
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.
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
26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
27 staff in their work on open source projects.
31 2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
32 Improve setup message handling for all devices.
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.
39 2003jan30 LPM add support for the 49WLC and MPR
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.
49 Fri Oct 12 16:45:00 EST 2001
50 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
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.
60 Fri Oct 12 16:45:00 EST 2001
61 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
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.
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.
71 Thu May 31 11:56:42 PDT 2001 gkh
72 switched from using spinlock to a semaphore
75 Identify version on module load.
77 (11/01/2000) Adam J. Richter
78 usb_device_id table support.
80 Tue Oct 10 23:15:33 EST 2000 Hugh
81 Merged Paul's changes with my USA-49W mods. Work in progress
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.
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.
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...
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>
118 * Version Information
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"
124 #define INSTAT_BUFLEN 32
125 #define GLOCONT_BUFLEN 64
126 #define INDAT49W_BUFLEN 512
128 /* Per device and per port private data */
129 struct keyspan_serial_private {
130 const struct keyspan_device_details *device_details;
132 struct urb *instat_urb;
133 char instat_buf[INSTAT_BUFLEN];
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];
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 */
146 struct keyspan_port_private {
147 /* Keep track of which input & output endpoints to use */
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;
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];
163 /* Input ack endpoint */
164 struct urb *inack_urb;
165 char inack_buffer[1];
167 /* Output control endpoint */
168 struct urb *outcont_urb;
169 char outcont_buffer[64];
171 /* Settings for the port */
175 unsigned int old_cflag;
176 enum {flow_none, flow_cts, flow_xon} flow_control;
177 int rts_state; /* Handshaking pins (outputs) */
179 int cts_state; /* Handshaking pins (inputs) */
185 unsigned long tx_start_time[2];
186 int resend_cont; /* need to resend control packet */
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"
200 /* Functions used by new usb-serial code. */
201 static int __init keyspan_init(void)
204 retval = usb_serial_register(&keyspan_pre_device);
206 goto failed_pre_device_register;
207 retval = usb_serial_register(&keyspan_1port_device);
209 goto failed_1port_device_register;
210 retval = usb_serial_register(&keyspan_2port_device);
212 goto failed_2port_device_register;
213 retval = usb_serial_register(&keyspan_4port_device);
215 goto failed_4port_device_register;
216 retval = usb_register(&keyspan_driver);
218 goto failed_usb_register;
220 info(DRIVER_VERSION ":" DRIVER_DESC);
224 usb_serial_deregister(&keyspan_4port_device);
225 failed_4port_device_register:
226 usb_serial_deregister(&keyspan_2port_device);
227 failed_2port_device_register:
228 usb_serial_deregister(&keyspan_1port_device);
229 failed_1port_device_register:
230 usb_serial_deregister(&keyspan_pre_device);
231 failed_pre_device_register:
235 static void __exit keyspan_exit(void)
237 usb_deregister(&keyspan_driver);
238 usb_serial_deregister(&keyspan_pre_device);
239 usb_serial_deregister(&keyspan_1port_device);
240 usb_serial_deregister(&keyspan_2port_device);
241 usb_serial_deregister(&keyspan_4port_device);
244 module_init(keyspan_init);
245 module_exit(keyspan_exit);
247 static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
249 struct usb_serial_port *port = tty->driver_data;
250 struct keyspan_port_private *p_priv;
254 p_priv = usb_get_serial_port_data(port);
256 if (break_state == -1)
257 p_priv->break_on = 1;
259 p_priv->break_on = 0;
261 keyspan_send_setup(port, 0);
265 static void keyspan_set_termios(struct tty_struct *tty,
266 struct usb_serial_port *port, struct ktermios *old_termios)
268 int baud_rate, device_port;
269 struct keyspan_port_private *p_priv;
270 const struct keyspan_device_details *d_details;
275 p_priv = usb_get_serial_port_data(port);
276 d_details = p_priv->device_details;
277 cflag = tty->termios->c_cflag;
278 device_port = port->number - port->serial->minor;
280 /* Baud rate calculation takes baud rate as an integer
281 so other rates can be generated if desired. */
282 baud_rate = tty_get_baud_rate(tty);
283 /* If no match or invalid, don't change */
284 if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
285 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
286 /* FIXME - more to do here to ensure rate changes cleanly */
287 /* FIXME - calcuate exact rate from divisor ? */
288 p_priv->baud = baud_rate;
290 baud_rate = tty_termios_baud_rate(old_termios);
292 tty_encode_baud_rate(tty, baud_rate, baud_rate);
293 /* set CTS/RTS handshake etc. */
294 p_priv->cflag = cflag;
295 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
297 /* Mark/Space not supported */
298 tty->termios->c_cflag &= ~CMSPAR;
300 keyspan_send_setup(port, 0);
303 static int keyspan_tiocmget(struct tty_struct *tty, struct file *file)
305 struct usb_serial_port *port = tty->driver_data;
306 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
309 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
310 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
311 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
312 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
313 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
314 ((p_priv->ri_state) ? TIOCM_RNG : 0);
319 static int keyspan_tiocmset(struct tty_struct *tty, struct file *file,
320 unsigned int set, unsigned int clear)
322 struct usb_serial_port *port = tty->driver_data;
323 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
326 p_priv->rts_state = 1;
328 p_priv->dtr_state = 1;
329 if (clear & TIOCM_RTS)
330 p_priv->rts_state = 0;
331 if (clear & TIOCM_DTR)
332 p_priv->dtr_state = 0;
333 keyspan_send_setup(port, 0);
337 /* Write function is similar for the four protocols used
338 with only a minor change for usa90 (usa19hs) required */
339 static int keyspan_write(struct tty_struct *tty,
340 struct usb_serial_port *port, const unsigned char *buf, int count)
342 struct keyspan_port_private *p_priv;
343 const struct keyspan_device_details *d_details;
346 struct urb *this_urb;
347 int err, maxDataLen, dataOffset;
349 p_priv = usb_get_serial_port_data(port);
350 d_details = p_priv->device_details;
352 if (d_details->msg_format == msg_usa90) {
360 dbg("%s - for port %d (%d chars), flip=%d",
361 __func__, port->number, count, p_priv->out_flip);
363 for (left = count; left > 0; left -= todo) {
365 if (todo > maxDataLen)
368 flip = p_priv->out_flip;
370 /* Check we have a valid urb/endpoint before we use it... */
371 this_urb = p_priv->out_urbs[flip];
372 if (this_urb == NULL) {
373 /* no bulk out, so return 0 bytes written */
374 dbg("%s - no output urb :(", __func__);
378 dbg("%s - endpoint %d flip %d",
379 __func__, usb_pipeendpoint(this_urb->pipe), flip);
381 if (this_urb->status == -EINPROGRESS) {
382 if (time_before(jiffies,
383 p_priv->tx_start_time[flip] + 10 * HZ))
385 usb_unlink_urb(this_urb);
389 /* First byte in buffer is "last flag" (except for usa19hx)
390 - unused so for now so set to zero */
391 ((char *)this_urb->transfer_buffer)[0] = 0;
393 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
396 /* send the data out the bulk port */
397 this_urb->transfer_buffer_length = todo + dataOffset;
399 this_urb->dev = port->serial->dev;
400 err = usb_submit_urb(this_urb, GFP_ATOMIC);
402 dbg("usb_submit_urb(write bulk) failed (%d)", err);
403 p_priv->tx_start_time[flip] = jiffies;
405 /* Flip for next time if usa26 or usa28 interface
406 (not used on usa49) */
407 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
413 static void usa26_indat_callback(struct urb *urb)
417 struct usb_serial_port *port;
418 struct tty_struct *tty;
419 unsigned char *data = urb->transfer_buffer;
420 int status = urb->status;
424 endpoint = usb_pipeendpoint(urb->pipe);
427 dbg("%s - nonzero status: %x on endpoint %d.",
428 __func__, status, endpoint);
433 tty = port->port.tty;
434 if (tty && urb->actual_length) {
435 /* 0x80 bit is error flag */
436 if ((data[0] & 0x80) == 0) {
437 /* no errors on individual bytes, only
438 possible overrun err */
439 if (data[0] & RXERROR_OVERRUN)
443 for (i = 1; i < urb->actual_length ; ++i)
444 tty_insert_flip_char(tty, data[i], err);
446 /* some bytes had errors, every byte has status */
447 dbg("%s - RX error!!!!", __func__);
448 for (i = 0; i + 1 < urb->actual_length; i += 2) {
449 int stat = data[i], flag = 0;
450 if (stat & RXERROR_OVERRUN)
452 if (stat & RXERROR_FRAMING)
454 if (stat & RXERROR_PARITY)
456 /* XXX should handle break (0x10) */
457 tty_insert_flip_char(tty, data[i+1], flag);
460 tty_flip_buffer_push(tty);
463 /* Resubmit urb so we continue receiving */
464 urb->dev = port->serial->dev;
465 if (port->port.count) {
466 err = usb_submit_urb(urb, GFP_ATOMIC);
468 dbg("%s - resubmit read urb failed. (%d)",
474 /* Outdat handling is common for all devices */
475 static void usa2x_outdat_callback(struct urb *urb)
477 struct usb_serial_port *port;
478 struct keyspan_port_private *p_priv;
481 p_priv = usb_get_serial_port_data(port);
482 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
484 if (port->port.count)
485 usb_serial_port_softint(port);
488 static void usa26_inack_callback(struct urb *urb)
494 static void usa26_outcont_callback(struct urb *urb)
496 struct usb_serial_port *port;
497 struct keyspan_port_private *p_priv;
500 p_priv = usb_get_serial_port_data(port);
502 if (p_priv->resend_cont) {
503 dbg("%s - sending setup", __func__);
504 keyspan_usa26_send_setup(port->serial, port,
505 p_priv->resend_cont - 1);
509 static void usa26_instat_callback(struct urb *urb)
511 unsigned char *data = urb->transfer_buffer;
512 struct keyspan_usa26_portStatusMessage *msg;
513 struct usb_serial *serial;
514 struct usb_serial_port *port;
515 struct keyspan_port_private *p_priv;
516 int old_dcd_state, err;
517 int status = urb->status;
519 serial = urb->context;
522 dbg("%s - nonzero status: %x", __func__, status);
525 if (urb->actual_length != 9) {
526 dbg("%s - %d byte report??", __func__, urb->actual_length);
530 msg = (struct keyspan_usa26_portStatusMessage *)data;
533 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
534 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
535 msg->_txXoff, msg->rxEnabled, msg->controlResponse);
538 /* Now do something useful with the data */
541 /* Check port number from message and retrieve private data */
542 if (msg->port >= serial->num_ports) {
543 dbg("%s - Unexpected port number %d", __func__, msg->port);
546 port = serial->port[msg->port];
547 p_priv = usb_get_serial_port_data(port);
549 /* Update handshaking pin state information */
550 old_dcd_state = p_priv->dcd_state;
551 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
552 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
553 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
554 p_priv->ri_state = ((msg->ri) ? 1 : 0);
556 if (port->port.tty && !C_CLOCAL(port->port.tty)
557 && old_dcd_state != p_priv->dcd_state) {
559 tty_hangup(port->port.tty);
561 /* wake_up_interruptible(&p_priv->open_wait); */
564 /* Resubmit urb so we continue receiving */
565 urb->dev = serial->dev;
566 err = usb_submit_urb(urb, GFP_ATOMIC);
568 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
572 static void usa26_glocont_callback(struct urb *urb)
578 static void usa28_indat_callback(struct urb *urb)
581 struct usb_serial_port *port;
582 struct tty_struct *tty;
584 struct keyspan_port_private *p_priv;
585 int status = urb->status;
590 p_priv = usb_get_serial_port_data(port);
591 data = urb->transfer_buffer;
593 if (urb != p_priv->in_urbs[p_priv->in_flip])
598 dbg("%s - nonzero status: %x on endpoint %d.",
599 __func__, status, usb_pipeendpoint(urb->pipe));
604 p_priv = usb_get_serial_port_data(port);
605 data = urb->transfer_buffer;
607 tty = port->port.tty;
608 if (urb->actual_length) {
609 tty_insert_flip_string(tty, data, urb->actual_length);
610 tty_flip_buffer_push(tty);
613 /* Resubmit urb so we continue receiving */
614 urb->dev = port->serial->dev;
615 if (port->port.count) {
616 err = usb_submit_urb(urb, GFP_ATOMIC);
618 dbg("%s - resubmit read urb failed. (%d)",
621 p_priv->in_flip ^= 1;
623 urb = p_priv->in_urbs[p_priv->in_flip];
624 } while (urb->status != -EINPROGRESS);
627 static void usa28_inack_callback(struct urb *urb)
632 static void usa28_outcont_callback(struct urb *urb)
634 struct usb_serial_port *port;
635 struct keyspan_port_private *p_priv;
638 p_priv = usb_get_serial_port_data(port);
640 if (p_priv->resend_cont) {
641 dbg("%s - sending setup", __func__);
642 keyspan_usa28_send_setup(port->serial, port,
643 p_priv->resend_cont - 1);
647 static void usa28_instat_callback(struct urb *urb)
650 unsigned char *data = urb->transfer_buffer;
651 struct keyspan_usa28_portStatusMessage *msg;
652 struct usb_serial *serial;
653 struct usb_serial_port *port;
654 struct keyspan_port_private *p_priv;
656 int status = urb->status;
658 serial = urb->context;
661 dbg("%s - nonzero status: %x", __func__, status);
665 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
666 dbg("%s - bad length %d", __func__, urb->actual_length);
670 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
671 data[0], data[1], data[2], data[3], data[4], data[5],
672 data[6], data[7], data[8], data[9], data[10], data[11]);*/
674 /* Now do something useful with the data */
675 msg = (struct keyspan_usa28_portStatusMessage *)data;
677 /* Check port number from message and retrieve private data */
678 if (msg->port >= serial->num_ports) {
679 dbg("%s - Unexpected port number %d", __func__, msg->port);
682 port = serial->port[msg->port];
683 p_priv = usb_get_serial_port_data(port);
685 /* Update handshaking pin state information */
686 old_dcd_state = p_priv->dcd_state;
687 p_priv->cts_state = ((msg->cts) ? 1 : 0);
688 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
689 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
690 p_priv->ri_state = ((msg->ri) ? 1 : 0);
692 if (port->port.tty && !C_CLOCAL(port->port.tty)
693 && old_dcd_state != p_priv->dcd_state) {
695 tty_hangup(port->port.tty);
697 /* wake_up_interruptible(&p_priv->open_wait); */
700 /* Resubmit urb so we continue receiving */
701 urb->dev = serial->dev;
702 err = usb_submit_urb(urb, GFP_ATOMIC);
704 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
708 static void usa28_glocont_callback(struct urb *urb)
714 static void usa49_glocont_callback(struct urb *urb)
716 struct usb_serial *serial;
717 struct usb_serial_port *port;
718 struct keyspan_port_private *p_priv;
723 serial = urb->context;
724 for (i = 0; i < serial->num_ports; ++i) {
725 port = serial->port[i];
726 p_priv = usb_get_serial_port_data(port);
728 if (p_priv->resend_cont) {
729 dbg("%s - sending setup", __func__);
730 keyspan_usa49_send_setup(serial, port,
731 p_priv->resend_cont - 1);
737 /* This is actually called glostat in the Keyspan
739 static void usa49_instat_callback(struct urb *urb)
742 unsigned char *data = urb->transfer_buffer;
743 struct keyspan_usa49_portStatusMessage *msg;
744 struct usb_serial *serial;
745 struct usb_serial_port *port;
746 struct keyspan_port_private *p_priv;
748 int status = urb->status;
752 serial = urb->context;
755 dbg("%s - nonzero status: %x", __func__, status);
759 if (urb->actual_length !=
760 sizeof(struct keyspan_usa49_portStatusMessage)) {
761 dbg("%s - bad length %d", __func__, urb->actual_length);
765 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
766 data[0], data[1], data[2], data[3], data[4], data[5],
767 data[6], data[7], data[8], data[9], data[10]);*/
769 /* Now do something useful with the data */
770 msg = (struct keyspan_usa49_portStatusMessage *)data;
772 /* Check port number from message and retrieve private data */
773 if (msg->portNumber >= serial->num_ports) {
774 dbg("%s - Unexpected port number %d",
775 __func__, msg->portNumber);
778 port = serial->port[msg->portNumber];
779 p_priv = usb_get_serial_port_data(port);
781 /* Update handshaking pin state information */
782 old_dcd_state = p_priv->dcd_state;
783 p_priv->cts_state = ((msg->cts) ? 1 : 0);
784 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
785 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
786 p_priv->ri_state = ((msg->ri) ? 1 : 0);
788 if (port->port.tty && !C_CLOCAL(port->port.tty)
789 && old_dcd_state != p_priv->dcd_state) {
791 tty_hangup(port->port.tty);
793 /* wake_up_interruptible(&p_priv->open_wait); */
796 /* Resubmit urb so we continue receiving */
797 urb->dev = serial->dev;
799 err = usb_submit_urb(urb, GFP_ATOMIC);
801 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
805 static void usa49_inack_callback(struct urb *urb)
810 static void usa49_indat_callback(struct urb *urb)
814 struct usb_serial_port *port;
815 struct tty_struct *tty;
816 unsigned char *data = urb->transfer_buffer;
817 int status = urb->status;
821 endpoint = usb_pipeendpoint(urb->pipe);
824 dbg("%s - nonzero status: %x on endpoint %d.", __func__,
830 tty = port->port.tty;
831 if (tty && urb->actual_length) {
832 /* 0x80 bit is error flag */
833 if ((data[0] & 0x80) == 0) {
834 /* no error on any byte */
835 tty_insert_flip_string(tty, data + 1,
836 urb->actual_length - 1);
838 /* some bytes had errors, every byte has status */
839 for (i = 0; i + 1 < urb->actual_length; i += 2) {
840 int stat = data[i], flag = 0;
841 if (stat & RXERROR_OVERRUN)
843 if (stat & RXERROR_FRAMING)
845 if (stat & RXERROR_PARITY)
847 /* XXX should handle break (0x10) */
848 tty_insert_flip_char(tty, data[i+1], flag);
851 tty_flip_buffer_push(tty);
854 /* Resubmit urb so we continue receiving */
855 urb->dev = port->serial->dev;
856 if (port->port.count) {
857 err = usb_submit_urb(urb, GFP_ATOMIC);
859 dbg("%s - resubmit read urb failed. (%d)",
864 static void usa49wg_indat_callback(struct urb *urb)
867 struct usb_serial *serial;
868 struct usb_serial_port *port;
869 struct tty_struct *tty;
870 unsigned char *data = urb->transfer_buffer;
871 int status = urb->status;
875 serial = urb->context;
878 dbg("%s - nonzero status: %x", __func__, status);
882 /* inbound data is in the form P#, len, status, data */
886 if (urb->actual_length) {
887 while (i < urb->actual_length) {
889 /* Check port number from message*/
890 if (data[i] >= serial->num_ports) {
891 dbg("%s - Unexpected port number %d",
895 port = serial->port[data[i++]];
896 tty = port->port.tty;
899 /* 0x80 bit is error flag */
900 if ((data[i] & 0x80) == 0) {
901 /* no error on any byte */
903 for (x = 1; x < len ; ++x)
904 if (port->port.count)
905 tty_insert_flip_char(tty,
911 * some bytes had errors, every byte has status
913 for (x = 0; x + 1 < len; x += 2) {
914 int stat = data[i], flag = 0;
915 if (stat & RXERROR_OVERRUN)
917 if (stat & RXERROR_FRAMING)
919 if (stat & RXERROR_PARITY)
921 /* XXX should handle break (0x10) */
922 if (port->port.count)
923 tty_insert_flip_char(tty,
928 if (port->port.count)
929 tty_flip_buffer_push(tty);
933 /* Resubmit urb so we continue receiving */
934 urb->dev = serial->dev;
936 err = usb_submit_urb(urb, GFP_ATOMIC);
938 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
941 /* not used, usa-49 doesn't have per-port control endpoints */
942 static void usa49_outcont_callback(struct urb *urb)
947 static void usa90_indat_callback(struct urb *urb)
951 struct usb_serial_port *port;
952 struct keyspan_port_private *p_priv;
953 struct tty_struct *tty;
954 unsigned char *data = urb->transfer_buffer;
955 int status = urb->status;
959 endpoint = usb_pipeendpoint(urb->pipe);
962 dbg("%s - nonzero status: %x on endpoint %d.",
963 __func__, status, endpoint);
968 p_priv = usb_get_serial_port_data(port);
970 tty = port->port.tty;
971 if (urb->actual_length) {
972 /* if current mode is DMA, looks like usa28 format
973 otherwise looks like usa26 data format */
975 if (p_priv->baud > 57600)
976 tty_insert_flip_string(tty, data, urb->actual_length);
978 /* 0x80 bit is error flag */
979 if ((data[0] & 0x80) == 0) {
980 /* no errors on individual bytes, only
981 possible overrun err*/
982 if (data[0] & RXERROR_OVERRUN)
986 for (i = 1; i < urb->actual_length ; ++i)
987 tty_insert_flip_char(tty, data[i],
990 /* some bytes had errors, every byte has status */
991 dbg("%s - RX error!!!!", __func__);
992 for (i = 0; i + 1 < urb->actual_length; i += 2) {
993 int stat = data[i], flag = 0;
994 if (stat & RXERROR_OVERRUN)
996 if (stat & RXERROR_FRAMING)
998 if (stat & RXERROR_PARITY)
1000 /* XXX should handle break (0x10) */
1001 tty_insert_flip_char(tty, data[i+1],
1006 tty_flip_buffer_push(tty);
1009 /* Resubmit urb so we continue receiving */
1010 urb->dev = port->serial->dev;
1011 if (port->port.count) {
1012 err = usb_submit_urb(urb, GFP_ATOMIC);
1014 dbg("%s - resubmit read urb failed. (%d)",
1021 static void usa90_instat_callback(struct urb *urb)
1023 unsigned char *data = urb->transfer_buffer;
1024 struct keyspan_usa90_portStatusMessage *msg;
1025 struct usb_serial *serial;
1026 struct usb_serial_port *port;
1027 struct keyspan_port_private *p_priv;
1028 int old_dcd_state, err;
1029 int status = urb->status;
1031 serial = urb->context;
1034 dbg("%s - nonzero status: %x", __func__, status);
1037 if (urb->actual_length < 14) {
1038 dbg("%s - %d byte report??", __func__, urb->actual_length);
1042 msg = (struct keyspan_usa90_portStatusMessage *)data;
1044 /* Now do something useful with the data */
1046 port = serial->port[0];
1047 p_priv = usb_get_serial_port_data(port);
1049 /* Update handshaking pin state information */
1050 old_dcd_state = p_priv->dcd_state;
1051 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1052 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1053 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1054 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1056 if (port->port.tty && !C_CLOCAL(port->port.tty)
1057 && old_dcd_state != p_priv->dcd_state) {
1059 tty_hangup(port->port.tty);
1061 /* wake_up_interruptible(&p_priv->open_wait); */
1064 /* Resubmit urb so we continue receiving */
1065 urb->dev = serial->dev;
1066 err = usb_submit_urb(urb, GFP_ATOMIC);
1068 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1073 static void usa90_outcont_callback(struct urb *urb)
1075 struct usb_serial_port *port;
1076 struct keyspan_port_private *p_priv;
1078 port = urb->context;
1079 p_priv = usb_get_serial_port_data(port);
1081 if (p_priv->resend_cont) {
1082 dbg("%s - sending setup", __func__);
1083 keyspan_usa90_send_setup(port->serial, port,
1084 p_priv->resend_cont - 1);
1088 /* Status messages from the 28xg */
1089 static void usa67_instat_callback(struct urb *urb)
1092 unsigned char *data = urb->transfer_buffer;
1093 struct keyspan_usa67_portStatusMessage *msg;
1094 struct usb_serial *serial;
1095 struct usb_serial_port *port;
1096 struct keyspan_port_private *p_priv;
1098 int status = urb->status;
1100 dbg("%s", __func__);
1102 serial = urb->context;
1105 dbg("%s - nonzero status: %x", __func__, status);
1109 if (urb->actual_length !=
1110 sizeof(struct keyspan_usa67_portStatusMessage)) {
1111 dbg("%s - bad length %d", __func__, urb->actual_length);
1116 /* Now do something useful with the data */
1117 msg = (struct keyspan_usa67_portStatusMessage *)data;
1119 /* Check port number from message and retrieve private data */
1120 if (msg->port >= serial->num_ports) {
1121 dbg("%s - Unexpected port number %d", __func__, msg->port);
1125 port = serial->port[msg->port];
1126 p_priv = usb_get_serial_port_data(port);
1128 /* Update handshaking pin state information */
1129 old_dcd_state = p_priv->dcd_state;
1130 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1131 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1133 if (port->port.tty && !C_CLOCAL(port->port.tty)
1134 && old_dcd_state != p_priv->dcd_state) {
1136 tty_hangup(port->port.tty);
1138 /* wake_up_interruptible(&p_priv->open_wait); */
1141 /* Resubmit urb so we continue receiving */
1142 urb->dev = serial->dev;
1143 err = usb_submit_urb(urb, GFP_ATOMIC);
1145 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1148 static void usa67_glocont_callback(struct urb *urb)
1150 struct usb_serial *serial;
1151 struct usb_serial_port *port;
1152 struct keyspan_port_private *p_priv;
1155 dbg("%s", __func__);
1157 serial = urb->context;
1158 for (i = 0; i < serial->num_ports; ++i) {
1159 port = serial->port[i];
1160 p_priv = usb_get_serial_port_data(port);
1162 if (p_priv->resend_cont) {
1163 dbg("%s - sending setup", __func__);
1164 keyspan_usa67_send_setup(serial, port,
1165 p_priv->resend_cont - 1);
1171 static int keyspan_write_room(struct tty_struct *tty)
1173 struct usb_serial_port *port = tty->driver_data;
1174 struct keyspan_port_private *p_priv;
1175 const struct keyspan_device_details *d_details;
1178 struct urb *this_urb;
1180 dbg("%s", __func__);
1181 p_priv = usb_get_serial_port_data(port);
1182 d_details = p_priv->device_details;
1184 /* FIXME: locking */
1185 if (d_details->msg_format == msg_usa90)
1190 flip = p_priv->out_flip;
1192 /* Check both endpoints to see if any are available. */
1193 this_urb = p_priv->out_urbs[flip];
1194 if (this_urb != NULL) {
1195 if (this_urb->status != -EINPROGRESS)
1197 flip = (flip + 1) & d_details->outdat_endp_flip;
1198 this_urb = p_priv->out_urbs[flip];
1199 if (this_urb != NULL) {
1200 if (this_urb->status != -EINPROGRESS)
1208 static int keyspan_open(struct tty_struct *tty,
1209 struct usb_serial_port *port, struct file *filp)
1211 struct keyspan_port_private *p_priv;
1212 struct keyspan_serial_private *s_priv;
1213 struct usb_serial *serial = port->serial;
1214 const struct keyspan_device_details *d_details;
1216 int baud_rate, device_port;
1218 unsigned int cflag = 0;
1220 s_priv = usb_get_serial_data(serial);
1221 p_priv = usb_get_serial_port_data(port);
1222 d_details = p_priv->device_details;
1224 dbg("%s - port%d.", __func__, port->number);
1226 /* Set some sane defaults */
1227 p_priv->rts_state = 1;
1228 p_priv->dtr_state = 1;
1229 p_priv->baud = 9600;
1231 /* force baud and lcr to be set on open */
1232 p_priv->old_baud = 0;
1233 p_priv->old_cflag = 0;
1235 p_priv->out_flip = 0;
1236 p_priv->in_flip = 0;
1238 /* Reset low level data toggle and start reading from endpoints */
1239 for (i = 0; i < 2; i++) {
1240 urb = p_priv->in_urbs[i];
1243 urb->dev = serial->dev;
1245 /* make sure endpoint data toggle is synchronized
1247 usb_clear_halt(urb->dev, urb->pipe);
1248 err = usb_submit_urb(urb, GFP_KERNEL);
1250 dbg("%s - submit urb %d failed (%d)",
1254 /* Reset low level data toggle on out endpoints */
1255 for (i = 0; i < 2; i++) {
1256 urb = p_priv->out_urbs[i];
1259 urb->dev = serial->dev;
1260 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1261 usb_pipeout(urb->pipe), 0); */
1264 /* get the terminal config for the setup message now so we don't
1265 * need to send 2 of them */
1267 device_port = port->number - port->serial->minor;
1269 cflag = tty->termios->c_cflag;
1270 /* Baud rate calculation takes baud rate as an integer
1271 so other rates can be generated if desired. */
1272 baud_rate = tty_get_baud_rate(tty);
1273 /* If no match or invalid, leave as default */
1275 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
1276 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1277 p_priv->baud = baud_rate;
1280 /* set CTS/RTS handshake etc. */
1281 p_priv->cflag = cflag;
1282 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1284 keyspan_send_setup(port, 1);
1286 /* keyspan_set_termios(port, NULL); */
1291 static inline void stop_urb(struct urb *urb)
1293 if (urb && urb->status == -EINPROGRESS)
1297 static void keyspan_close(struct tty_struct *tty,
1298 struct usb_serial_port *port, struct file *filp)
1301 struct usb_serial *serial = port->serial;
1302 struct keyspan_serial_private *s_priv;
1303 struct keyspan_port_private *p_priv;
1305 dbg("%s", __func__);
1306 s_priv = usb_get_serial_data(serial);
1307 p_priv = usb_get_serial_port_data(port);
1309 p_priv->rts_state = 0;
1310 p_priv->dtr_state = 0;
1313 keyspan_send_setup(port, 2);
1314 /* pilot-xfer seems to work best with this delay */
1316 /* keyspan_set_termios(port, NULL); */
1319 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
1320 dbg("%s - urb in progress", __func__);
1323 p_priv->out_flip = 0;
1324 p_priv->in_flip = 0;
1327 /* Stop reading/writing urbs */
1328 stop_urb(p_priv->inack_urb);
1329 /* stop_urb(p_priv->outcont_urb); */
1330 for (i = 0; i < 2; i++) {
1331 stop_urb(p_priv->in_urbs[i]);
1332 stop_urb(p_priv->out_urbs[i]);
1335 port->port.tty = NULL;
1338 /* download the firmware to a pre-renumeration device */
1339 static int keyspan_fake_startup(struct usb_serial *serial)
1342 const struct ihex_binrec *record;
1344 const struct firmware *fw;
1346 dbg("Keyspan startup version %04x product %04x",
1347 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1348 le16_to_cpu(serial->dev->descriptor.idProduct));
1350 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1352 dbg("Firmware already loaded. Quitting.");
1356 /* Select firmware image on the basis of idProduct */
1357 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1358 case keyspan_usa28_pre_product_id:
1359 fw_name = "keyspan/usa28.fw";
1362 case keyspan_usa28x_pre_product_id:
1363 fw_name = "keyspan/usa28x.fw";
1366 case keyspan_usa28xa_pre_product_id:
1367 fw_name = "keyspan/usa28xa.fw";
1370 case keyspan_usa28xb_pre_product_id:
1371 fw_name = "keyspan/usa28xb.fw";
1374 case keyspan_usa19_pre_product_id:
1375 fw_name = "keyspan/usa19.fw";
1378 case keyspan_usa19qi_pre_product_id:
1379 fw_name = "keyspan/usa19qi.fw";
1382 case keyspan_mpr_pre_product_id:
1383 fw_name = "keyspan/mpr.fw";
1386 case keyspan_usa19qw_pre_product_id:
1387 fw_name = "keyspan/usa19qw.fw";
1390 case keyspan_usa18x_pre_product_id:
1391 fw_name = "keyspan/usa18x.fw";
1394 case keyspan_usa19w_pre_product_id:
1395 fw_name = "keyspan/usa19w.fw";
1398 case keyspan_usa49w_pre_product_id:
1399 fw_name = "keyspan/usa49w.fw";
1402 case keyspan_usa49wlc_pre_product_id:
1403 fw_name = "keyspan/usa49wlc.fw";
1407 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1408 le16_to_cpu(serial->dev->descriptor.idProduct));
1412 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
1413 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1417 dbg("Uploading Keyspan %s firmware.", fw_name);
1419 /* download the firmware image */
1420 response = ezusb_set_reset(serial, 1);
1422 record = (const struct ihex_binrec *)fw->data;
1425 response = ezusb_writememory(serial, be32_to_cpu(record->addr),
1426 (unsigned char *)record->data,
1427 be16_to_cpu(record->len), 0xa0);
1429 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
1430 response, be32_to_cpu(record->addr),
1431 record->data, be16_to_cpu(record->len));
1434 record = ihex_next_binrec(record);
1436 release_firmware(fw);
1437 /* bring device out of reset. Renumeration will occur in a
1438 moment and the new device will bind to the real driver */
1439 response = ezusb_set_reset(serial, 0);
1441 /* we don't want this device to have a driver assigned to it. */
1445 /* Helper functions used by keyspan_setup_urbs */
1446 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1449 struct usb_host_interface *iface_desc;
1450 struct usb_endpoint_descriptor *ep;
1453 iface_desc = serial->interface->cur_altsetting;
1454 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1455 ep = &iface_desc->endpoint[i].desc;
1456 if (ep->bEndpointAddress == endpoint)
1459 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1460 "endpoint %x\n", endpoint);
1464 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1465 int dir, void *ctx, char *buf, int len,
1466 void (*callback)(struct urb *))
1469 struct usb_endpoint_descriptor const *ep_desc;
1470 char const *ep_type_name;
1473 return NULL; /* endpoint not needed */
1475 dbg("%s - alloc for endpoint %d.", __func__, endpoint);
1476 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1478 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
1482 if (endpoint == 0) {
1483 /* control EP filled in when used */
1487 ep_desc = find_ep(serial, endpoint);
1489 /* leak the urb, something's wrong and the callers don't care */
1492 if (usb_endpoint_xfer_int(ep_desc)) {
1493 ep_type_name = "INT";
1494 usb_fill_int_urb(urb, serial->dev,
1495 usb_sndintpipe(serial->dev, endpoint) | dir,
1496 buf, len, callback, ctx,
1497 ep_desc->bInterval);
1498 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1499 ep_type_name = "BULK";
1500 usb_fill_bulk_urb(urb, serial->dev,
1501 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1502 buf, len, callback, ctx);
1504 dev_warn(&serial->interface->dev,
1505 "unsupported endpoint type %x\n",
1506 ep_desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1511 dbg("%s - using urb %p for %s endpoint %x",
1512 __func__, urb, ep_type_name, endpoint);
1516 static struct callbacks {
1517 void (*instat_callback)(struct urb *);
1518 void (*glocont_callback)(struct urb *);
1519 void (*indat_callback)(struct urb *);
1520 void (*outdat_callback)(struct urb *);
1521 void (*inack_callback)(struct urb *);
1522 void (*outcont_callback)(struct urb *);
1523 } keyspan_callbacks[] = {
1525 /* msg_usa26 callbacks */
1526 .instat_callback = usa26_instat_callback,
1527 .glocont_callback = usa26_glocont_callback,
1528 .indat_callback = usa26_indat_callback,
1529 .outdat_callback = usa2x_outdat_callback,
1530 .inack_callback = usa26_inack_callback,
1531 .outcont_callback = usa26_outcont_callback,
1533 /* msg_usa28 callbacks */
1534 .instat_callback = usa28_instat_callback,
1535 .glocont_callback = usa28_glocont_callback,
1536 .indat_callback = usa28_indat_callback,
1537 .outdat_callback = usa2x_outdat_callback,
1538 .inack_callback = usa28_inack_callback,
1539 .outcont_callback = usa28_outcont_callback,
1541 /* msg_usa49 callbacks */
1542 .instat_callback = usa49_instat_callback,
1543 .glocont_callback = usa49_glocont_callback,
1544 .indat_callback = usa49_indat_callback,
1545 .outdat_callback = usa2x_outdat_callback,
1546 .inack_callback = usa49_inack_callback,
1547 .outcont_callback = usa49_outcont_callback,
1549 /* msg_usa90 callbacks */
1550 .instat_callback = usa90_instat_callback,
1551 .glocont_callback = usa28_glocont_callback,
1552 .indat_callback = usa90_indat_callback,
1553 .outdat_callback = usa2x_outdat_callback,
1554 .inack_callback = usa28_inack_callback,
1555 .outcont_callback = usa90_outcont_callback,
1557 /* msg_usa67 callbacks */
1558 .instat_callback = usa67_instat_callback,
1559 .glocont_callback = usa67_glocont_callback,
1560 .indat_callback = usa26_indat_callback,
1561 .outdat_callback = usa2x_outdat_callback,
1562 .inack_callback = usa26_inack_callback,
1563 .outcont_callback = usa26_outcont_callback,
1567 /* Generic setup urbs function that uses
1568 data in device_details */
1569 static void keyspan_setup_urbs(struct usb_serial *serial)
1572 struct keyspan_serial_private *s_priv;
1573 const struct keyspan_device_details *d_details;
1574 struct usb_serial_port *port;
1575 struct keyspan_port_private *p_priv;
1576 struct callbacks *cback;
1579 dbg("%s", __func__);
1581 s_priv = usb_get_serial_data(serial);
1582 d_details = s_priv->device_details;
1584 /* Setup values for the various callback routines */
1585 cback = &keyspan_callbacks[d_details->msg_format];
1587 /* Allocate and set up urbs for each one that is in use,
1588 starting with instat endpoints */
1589 s_priv->instat_urb = keyspan_setup_urb
1590 (serial, d_details->instat_endpoint, USB_DIR_IN,
1591 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1592 cback->instat_callback);
1594 s_priv->indat_urb = keyspan_setup_urb
1595 (serial, d_details->indat_endpoint, USB_DIR_IN,
1596 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1597 usa49wg_indat_callback);
1599 s_priv->glocont_urb = keyspan_setup_urb
1600 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1601 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1602 cback->glocont_callback);
1604 /* Setup endpoints for each port specific thing */
1605 for (i = 0; i < d_details->num_ports; i++) {
1606 port = serial->port[i];
1607 p_priv = usb_get_serial_port_data(port);
1609 /* Do indat endpoints first, once for each flip */
1610 endp = d_details->indat_endpoints[i];
1611 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1612 p_priv->in_urbs[j] = keyspan_setup_urb
1613 (serial, endp, USB_DIR_IN, port,
1614 p_priv->in_buffer[j], 64,
1615 cback->indat_callback);
1618 p_priv->in_urbs[j] = NULL;
1620 /* outdat endpoints also have flip */
1621 endp = d_details->outdat_endpoints[i];
1622 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1623 p_priv->out_urbs[j] = keyspan_setup_urb
1624 (serial, endp, USB_DIR_OUT, port,
1625 p_priv->out_buffer[j], 64,
1626 cback->outdat_callback);
1629 p_priv->out_urbs[j] = NULL;
1631 /* inack endpoint */
1632 p_priv->inack_urb = keyspan_setup_urb
1633 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1634 port, p_priv->inack_buffer, 1, cback->inack_callback);
1636 /* outcont endpoint */
1637 p_priv->outcont_urb = keyspan_setup_urb
1638 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1639 port, p_priv->outcont_buffer, 64,
1640 cback->outcont_callback);
1644 /* usa19 function doesn't require prescaler */
1645 static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1646 u8 *rate_low, u8 *prescaler, int portnum)
1648 u32 b16, /* baud rate times 16 (actual rate used internally) */
1650 cnt; /* inverse of divisor (programmed into 8051) */
1652 dbg("%s - %d.", __func__, baud_rate);
1654 /* prevent divide by zero... */
1655 b16 = baud_rate * 16L;
1657 return KEYSPAN_INVALID_BAUD_RATE;
1658 /* Any "standard" rate over 57k6 is marginal on the USA-19
1659 as we run out of divisor resolution. */
1660 if (baud_rate > 57600)
1661 return KEYSPAN_INVALID_BAUD_RATE;
1663 /* calculate the divisor and the counter (its inverse) */
1664 div = baudclk / b16;
1666 return KEYSPAN_INVALID_BAUD_RATE;
1671 return KEYSPAN_INVALID_BAUD_RATE;
1673 /* return the counter values if non-null */
1675 *rate_low = (u8) (cnt & 0xff);
1677 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1678 if (rate_low && rate_hi)
1679 dbg("%s - %d %02x %02x.",
1680 __func__, baud_rate, *rate_hi, *rate_low);
1681 return KEYSPAN_BAUD_RATE_OK;
1684 /* usa19hs function doesn't require prescaler */
1685 static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1686 u8 *rate_low, u8 *prescaler, int portnum)
1688 u32 b16, /* baud rate times 16 (actual rate used internally) */
1691 dbg("%s - %d.", __func__, baud_rate);
1693 /* prevent divide by zero... */
1694 b16 = baud_rate * 16L;
1696 return KEYSPAN_INVALID_BAUD_RATE;
1698 /* calculate the divisor */
1699 div = baudclk / b16;
1701 return KEYSPAN_INVALID_BAUD_RATE;
1704 return KEYSPAN_INVALID_BAUD_RATE;
1706 /* return the counter values if non-null */
1708 *rate_low = (u8) (div & 0xff);
1711 *rate_hi = (u8) ((div >> 8) & 0xff);
1713 if (rate_low && rate_hi)
1714 dbg("%s - %d %02x %02x.",
1715 __func__, baud_rate, *rate_hi, *rate_low);
1717 return KEYSPAN_BAUD_RATE_OK;
1720 static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1721 u8 *rate_low, u8 *prescaler, int portnum)
1723 u32 b16, /* baud rate times 16 (actual rate used internally) */
1724 clk, /* clock with 13/8 prescaler */
1725 div, /* divisor using 13/8 prescaler */
1726 res, /* resulting baud rate using 13/8 prescaler */
1727 diff, /* error using 13/8 prescaler */
1732 dbg("%s - %d.", __func__, baud_rate);
1734 /* prevent divide by zero */
1735 b16 = baud_rate * 16L;
1737 return KEYSPAN_INVALID_BAUD_RATE;
1739 /* Calculate prescaler by trying them all and looking
1742 /* start with largest possible difference */
1743 smallest_diff = 0xffffffff;
1745 /* 0 is an invalid prescaler, used as a flag */
1748 for (i = 8; i <= 0xff; ++i) {
1749 clk = (baudclk * 8) / (u32) i;
1756 diff = (res > b16) ? (res-b16) : (b16-res);
1758 if (diff < smallest_diff) {
1760 smallest_diff = diff;
1764 if (best_prescaler == 0)
1765 return KEYSPAN_INVALID_BAUD_RATE;
1767 clk = (baudclk * 8) / (u32) best_prescaler;
1770 /* return the divisor and prescaler if non-null */
1772 *rate_low = (u8) (div & 0xff);
1774 *rate_hi = (u8) ((div >> 8) & 0xff);
1776 *prescaler = best_prescaler;
1777 /* dbg("%s - %d %d", __func__, *prescaler, div); */
1779 return KEYSPAN_BAUD_RATE_OK;
1782 /* USA-28 supports different maximum baud rates on each port */
1783 static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1784 u8 *rate_low, u8 *prescaler, int portnum)
1786 u32 b16, /* baud rate times 16 (actual rate used internally) */
1788 cnt; /* inverse of divisor (programmed into 8051) */
1790 dbg("%s - %d.", __func__, baud_rate);
1792 /* prevent divide by zero */
1793 b16 = baud_rate * 16L;
1795 return KEYSPAN_INVALID_BAUD_RATE;
1797 /* calculate the divisor and the counter (its inverse) */
1798 div = KEYSPAN_USA28_BAUDCLK / b16;
1800 return KEYSPAN_INVALID_BAUD_RATE;
1804 /* check for out of range, based on portnum,
1805 and return result */
1808 return KEYSPAN_INVALID_BAUD_RATE;
1812 return KEYSPAN_INVALID_BAUD_RATE;
1814 return KEYSPAN_INVALID_BAUD_RATE;
1817 /* return the counter values if not NULL
1818 (port 1 will ignore retHi) */
1820 *rate_low = (u8) (cnt & 0xff);
1822 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1823 dbg("%s - %d OK.", __func__, baud_rate);
1824 return KEYSPAN_BAUD_RATE_OK;
1827 static int keyspan_usa26_send_setup(struct usb_serial *serial,
1828 struct usb_serial_port *port,
1831 struct keyspan_usa26_portControlMessage msg;
1832 struct keyspan_serial_private *s_priv;
1833 struct keyspan_port_private *p_priv;
1834 const struct keyspan_device_details *d_details;
1836 struct urb *this_urb;
1837 int device_port, err;
1839 dbg("%s reset=%d", __func__, reset_port);
1841 s_priv = usb_get_serial_data(serial);
1842 p_priv = usb_get_serial_port_data(port);
1843 d_details = s_priv->device_details;
1844 device_port = port->number - port->serial->minor;
1846 outcont_urb = d_details->outcont_endpoints[port->number];
1847 this_urb = p_priv->outcont_urb;
1849 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
1851 /* Make sure we have an urb then send the message */
1852 if (this_urb == NULL) {
1853 dbg("%s - oops no urb.", __func__);
1857 /* Save reset port val for resend.
1858 Don't overwrite resend for open/close condition. */
1859 if ((reset_port + 1) > p_priv->resend_cont)
1860 p_priv->resend_cont = reset_port + 1;
1861 if (this_urb->status == -EINPROGRESS) {
1862 /* dbg("%s - already writing", __func__); */
1867 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
1869 /* Only set baud rate if it's changed */
1870 if (p_priv->old_baud != p_priv->baud) {
1871 p_priv->old_baud = p_priv->baud;
1872 msg.setClocking = 0xff;
1873 if (d_details->calculate_baud_rate
1874 (p_priv->baud, d_details->baudclk, &msg.baudHi,
1875 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
1876 dbg("%s - Invalid baud rate %d requested, using 9600.",
1877 __func__, p_priv->baud);
1879 msg.baudHi = 125; /* Values for 9600 baud */
1882 msg.setPrescaler = 0xff;
1885 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1886 switch (p_priv->cflag & CSIZE) {
1888 msg.lcr |= USA_DATABITS_5;
1891 msg.lcr |= USA_DATABITS_6;
1894 msg.lcr |= USA_DATABITS_7;
1897 msg.lcr |= USA_DATABITS_8;
1900 if (p_priv->cflag & PARENB) {
1901 /* note USA_PARITY_NONE == 0 */
1902 msg.lcr |= (p_priv->cflag & PARODD)?
1903 USA_PARITY_ODD : USA_PARITY_EVEN;
1907 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1908 msg.xonFlowControl = 0;
1909 msg.setFlowControl = 0xff;
1910 msg.forwardingLength = 16;
1915 if (reset_port == 1) {
1924 msg.returnStatus = 0;
1925 msg.resetDataToggle = 0xff;
1929 else if (reset_port == 2) {
1938 msg.returnStatus = 0;
1939 msg.resetDataToggle = 0;
1942 /* Sending intermediate configs */
1944 msg._txOn = (!p_priv->break_on);
1947 msg.txBreak = (p_priv->break_on);
1952 msg.returnStatus = 0;
1953 msg.resetDataToggle = 0x0;
1956 /* Do handshaking outputs */
1957 msg.setTxTriState_setRts = 0xff;
1958 msg.txTriState_rts = p_priv->rts_state;
1960 msg.setHskoa_setDtr = 0xff;
1961 msg.hskoa_dtr = p_priv->dtr_state;
1963 p_priv->resend_cont = 0;
1964 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1966 /* send the data out the device on control endpoint */
1967 this_urb->transfer_buffer_length = sizeof(msg);
1969 this_urb->dev = serial->dev;
1970 err = usb_submit_urb(this_urb, GFP_ATOMIC);
1972 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
1975 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
1976 outcont_urb, this_urb->transfer_buffer_length,
1977 usb_pipeendpoint(this_urb->pipe));
1984 static int keyspan_usa28_send_setup(struct usb_serial *serial,
1985 struct usb_serial_port *port,
1988 struct keyspan_usa28_portControlMessage msg;
1989 struct keyspan_serial_private *s_priv;
1990 struct keyspan_port_private *p_priv;
1991 const struct keyspan_device_details *d_details;
1992 struct urb *this_urb;
1993 int device_port, err;
1995 dbg("%s", __func__);
1997 s_priv = usb_get_serial_data(serial);
1998 p_priv = usb_get_serial_port_data(port);
1999 d_details = s_priv->device_details;
2000 device_port = port->number - port->serial->minor;
2002 /* only do something if we have a bulk out endpoint */
2003 this_urb = p_priv->outcont_urb;
2004 if (this_urb == NULL) {
2005 dbg("%s - oops no urb.", __func__);
2009 /* Save reset port val for resend.
2010 Don't overwrite resend for open/close condition. */
2011 if ((reset_port + 1) > p_priv->resend_cont)
2012 p_priv->resend_cont = reset_port + 1;
2013 if (this_urb->status == -EINPROGRESS) {
2014 dbg("%s already writing", __func__);
2019 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2021 msg.setBaudRate = 1;
2022 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2023 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2024 dbg("%s - Invalid baud rate requested %d.",
2025 __func__, p_priv->baud);
2027 msg.baudHi = 0xb2; /* Values for 9600 baud */
2030 /* If parity is enabled, we must calculate it ourselves. */
2031 msg.parity = 0; /* XXX for now */
2033 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2034 msg.xonFlowControl = 0;
2036 /* Do handshaking outputs, DTR is inverted relative to RTS */
2037 msg.rts = p_priv->rts_state;
2038 msg.dtr = p_priv->dtr_state;
2040 msg.forwardingLength = 16;
2042 msg.breakThreshold = 45;
2046 /*msg.returnStatus = 1;
2047 msg.resetDataToggle = 0xff;*/
2049 if (reset_port == 1) {
2053 msg.txForceXoff = 0;
2059 msg.returnStatus = 0;
2060 msg.resetDataToggle = 0xff;
2063 else if (reset_port == 2) {
2067 msg.txForceXoff = 0;
2073 msg.returnStatus = 0;
2074 msg.resetDataToggle = 0;
2076 /* Sending intermediate configs */
2078 msg._txOn = (!p_priv->break_on);
2081 msg.txForceXoff = 0;
2082 msg.txBreak = (p_priv->break_on);
2087 msg.returnStatus = 0;
2088 msg.resetDataToggle = 0x0;
2091 p_priv->resend_cont = 0;
2092 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2094 /* send the data out the device on control endpoint */
2095 this_urb->transfer_buffer_length = sizeof(msg);
2097 this_urb->dev = serial->dev;
2098 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2100 dbg("%s - usb_submit_urb(setup) failed", __func__);
2103 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
2104 this_urb->transfer_buffer_length);
2111 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2112 struct usb_serial_port *port,
2115 struct keyspan_usa49_portControlMessage msg;
2116 struct usb_ctrlrequest *dr = NULL;
2117 struct keyspan_serial_private *s_priv;
2118 struct keyspan_port_private *p_priv;
2119 const struct keyspan_device_details *d_details;
2120 struct urb *this_urb;
2121 int err, device_port;
2123 dbg("%s", __func__);
2125 s_priv = usb_get_serial_data(serial);
2126 p_priv = usb_get_serial_port_data(port);
2127 d_details = s_priv->device_details;
2129 this_urb = s_priv->glocont_urb;
2131 /* Work out which port within the device is being setup */
2132 device_port = port->number - port->serial->minor;
2134 dbg("%s - endpoint %d port %d (%d)",
2135 __func__, usb_pipeendpoint(this_urb->pipe),
2136 port->number, device_port);
2138 /* Make sure we have an urb then send the message */
2139 if (this_urb == NULL) {
2140 dbg("%s - oops no urb for port %d.", __func__, port->number);
2144 /* Save reset port val for resend.
2145 Don't overwrite resend for open/close condition. */
2146 if ((reset_port + 1) > p_priv->resend_cont)
2147 p_priv->resend_cont = reset_port + 1;
2149 if (this_urb->status == -EINPROGRESS) {
2150 /* dbg("%s - already writing", __func__); */
2155 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2157 /*msg.portNumber = port->number;*/
2158 msg.portNumber = device_port;
2160 /* Only set baud rate if it's changed */
2161 if (p_priv->old_baud != p_priv->baud) {
2162 p_priv->old_baud = p_priv->baud;
2163 msg.setClocking = 0xff;
2164 if (d_details->calculate_baud_rate
2165 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2166 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2167 dbg("%s - Invalid baud rate %d requested, using 9600.",
2168 __func__, p_priv->baud);
2170 msg.baudHi = 125; /* Values for 9600 baud */
2173 /* msg.setPrescaler = 0xff; */
2176 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2177 switch (p_priv->cflag & CSIZE) {
2179 msg.lcr |= USA_DATABITS_5;
2182 msg.lcr |= USA_DATABITS_6;
2185 msg.lcr |= USA_DATABITS_7;
2188 msg.lcr |= USA_DATABITS_8;
2191 if (p_priv->cflag & PARENB) {
2192 /* note USA_PARITY_NONE == 0 */
2193 msg.lcr |= (p_priv->cflag & PARODD)?
2194 USA_PARITY_ODD : USA_PARITY_EVEN;
2198 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2199 msg.xonFlowControl = 0;
2200 msg.setFlowControl = 0xff;
2202 msg.forwardingLength = 16;
2207 if (reset_port == 1) {
2216 msg.returnStatus = 0;
2217 msg.resetDataToggle = 0xff;
2219 msg.disablePort = 0;
2222 else if (reset_port == 2) {
2231 msg.returnStatus = 0;
2232 msg.resetDataToggle = 0;
2234 msg.disablePort = 1;
2236 /* Sending intermediate configs */
2238 msg._txOn = (!p_priv->break_on);
2241 msg.txBreak = (p_priv->break_on);
2246 msg.returnStatus = 0;
2247 msg.resetDataToggle = 0x0;
2249 msg.disablePort = 0;
2252 /* Do handshaking outputs */
2254 msg.rts = p_priv->rts_state;
2257 msg.dtr = p_priv->dtr_state;
2259 p_priv->resend_cont = 0;
2261 /* if the device is a 49wg, we send control message on usb
2264 if (d_details->product_id == keyspan_usa49wg_product_id) {
2265 dr = (void *)(s_priv->ctrl_buf);
2266 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2267 dr->bRequest = 0xB0; /* 49wg control message */;
2270 dr->wLength = cpu_to_le16(sizeof(msg));
2272 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2274 usb_fill_control_urb(this_urb, serial->dev,
2275 usb_sndctrlpipe(serial->dev, 0),
2276 (unsigned char *)dr, s_priv->glocont_buf,
2277 sizeof(msg), usa49_glocont_callback, serial);
2280 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2282 /* send the data out the device on control endpoint */
2283 this_urb->transfer_buffer_length = sizeof(msg);
2285 this_urb->dev = serial->dev;
2287 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2289 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2292 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
2293 outcont_urb, this_urb->transfer_buffer_length,
2294 usb_pipeendpoint(this_urb->pipe));
2301 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2302 struct usb_serial_port *port,
2305 struct keyspan_usa90_portControlMessage msg;
2306 struct keyspan_serial_private *s_priv;
2307 struct keyspan_port_private *p_priv;
2308 const struct keyspan_device_details *d_details;
2309 struct urb *this_urb;
2313 dbg("%s", __func__);
2315 s_priv = usb_get_serial_data(serial);
2316 p_priv = usb_get_serial_port_data(port);
2317 d_details = s_priv->device_details;
2319 /* only do something if we have a bulk out endpoint */
2320 this_urb = p_priv->outcont_urb;
2321 if (this_urb == NULL) {
2322 dbg("%s - oops no urb.", __func__);
2326 /* Save reset port val for resend.
2327 Don't overwrite resend for open/close condition. */
2328 if ((reset_port + 1) > p_priv->resend_cont)
2329 p_priv->resend_cont = reset_port + 1;
2330 if (this_urb->status == -EINPROGRESS) {
2331 dbg("%s already writing", __func__);
2336 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2338 /* Only set baud rate if it's changed */
2339 if (p_priv->old_baud != p_priv->baud) {
2340 p_priv->old_baud = p_priv->baud;
2341 msg.setClocking = 0x01;
2342 if (d_details->calculate_baud_rate
2343 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2344 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2345 dbg("%s - Invalid baud rate %d requested, using 9600.",
2346 __func__, p_priv->baud);
2347 p_priv->baud = 9600;
2348 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2349 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2355 /* modes must always be correctly specified */
2356 if (p_priv->baud > 57600) {
2357 msg.rxMode = RXMODE_DMA;
2358 msg.txMode = TXMODE_DMA;
2360 msg.rxMode = RXMODE_BYHAND;
2361 msg.txMode = TXMODE_BYHAND;
2364 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2365 switch (p_priv->cflag & CSIZE) {
2367 msg.lcr |= USA_DATABITS_5;
2370 msg.lcr |= USA_DATABITS_6;
2373 msg.lcr |= USA_DATABITS_7;
2376 msg.lcr |= USA_DATABITS_8;
2379 if (p_priv->cflag & PARENB) {
2380 /* note USA_PARITY_NONE == 0 */
2381 msg.lcr |= (p_priv->cflag & PARODD)?
2382 USA_PARITY_ODD : USA_PARITY_EVEN;
2384 if (p_priv->old_cflag != p_priv->cflag) {
2385 p_priv->old_cflag = p_priv->cflag;
2389 if (p_priv->flow_control == flow_cts)
2390 msg.txFlowControl = TXFLOW_CTS;
2391 msg.setTxFlowControl = 0x01;
2392 msg.setRxFlowControl = 0x01;
2394 msg.rxForwardingLength = 16;
2395 msg.rxForwardingTimeout = 16;
2396 msg.txAckSetting = 0;
2401 if (reset_port == 1) {
2402 msg.portEnabled = 1;
2404 msg.txBreak = (p_priv->break_on);
2407 else if (reset_port == 2)
2408 msg.portEnabled = 0;
2409 /* Sending intermediate configs */
2411 if (port->port.count)
2412 msg.portEnabled = 1;
2413 msg.txBreak = (p_priv->break_on);
2416 /* Do handshaking outputs */
2418 msg.rts = p_priv->rts_state;
2421 msg.dtr = p_priv->dtr_state;
2423 p_priv->resend_cont = 0;
2424 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2426 /* send the data out the device on control endpoint */
2427 this_urb->transfer_buffer_length = sizeof(msg);
2429 this_urb->dev = serial->dev;
2430 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2432 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2436 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2437 struct usb_serial_port *port,
2440 struct keyspan_usa67_portControlMessage msg;
2441 struct keyspan_serial_private *s_priv;
2442 struct keyspan_port_private *p_priv;
2443 const struct keyspan_device_details *d_details;
2444 struct urb *this_urb;
2445 int err, device_port;
2447 dbg("%s", __func__);
2449 s_priv = usb_get_serial_data(serial);
2450 p_priv = usb_get_serial_port_data(port);
2451 d_details = s_priv->device_details;
2453 this_urb = s_priv->glocont_urb;
2455 /* Work out which port within the device is being setup */
2456 device_port = port->number - port->serial->minor;
2458 /* Make sure we have an urb then send the message */
2459 if (this_urb == NULL) {
2460 dbg("%s - oops no urb for port %d.", __func__,
2465 /* Save reset port val for resend.
2466 Don't overwrite resend for open/close condition. */
2467 if ((reset_port + 1) > p_priv->resend_cont)
2468 p_priv->resend_cont = reset_port + 1;
2469 if (this_urb->status == -EINPROGRESS) {
2470 /* dbg("%s - already writing", __func__); */
2475 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2477 msg.port = device_port;
2479 /* Only set baud rate if it's changed */
2480 if (p_priv->old_baud != p_priv->baud) {
2481 p_priv->old_baud = p_priv->baud;
2482 msg.setClocking = 0xff;
2483 if (d_details->calculate_baud_rate
2484 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2485 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2486 dbg("%s - Invalid baud rate %d requested, using 9600.",
2487 __func__, p_priv->baud);
2489 msg.baudHi = 125; /* Values for 9600 baud */
2492 msg.setPrescaler = 0xff;
2495 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2496 switch (p_priv->cflag & CSIZE) {
2498 msg.lcr |= USA_DATABITS_5;
2501 msg.lcr |= USA_DATABITS_6;
2504 msg.lcr |= USA_DATABITS_7;
2507 msg.lcr |= USA_DATABITS_8;
2510 if (p_priv->cflag & PARENB) {
2511 /* note USA_PARITY_NONE == 0 */
2512 msg.lcr |= (p_priv->cflag & PARODD)?
2513 USA_PARITY_ODD : USA_PARITY_EVEN;
2517 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2518 msg.xonFlowControl = 0;
2519 msg.setFlowControl = 0xff;
2520 msg.forwardingLength = 16;
2524 if (reset_port == 1) {
2534 msg.returnStatus = 0;
2535 msg.resetDataToggle = 0xff;
2536 } else if (reset_port == 2) {
2546 msg.returnStatus = 0;
2547 msg.resetDataToggle = 0;
2549 /* Sending intermediate configs */
2550 msg._txOn = (!p_priv->break_on);
2553 msg.txBreak = (p_priv->break_on);
2558 msg.returnStatus = 0;
2559 msg.resetDataToggle = 0x0;
2562 /* Do handshaking outputs */
2563 msg.setTxTriState_setRts = 0xff;
2564 msg.txTriState_rts = p_priv->rts_state;
2566 msg.setHskoa_setDtr = 0xff;
2567 msg.hskoa_dtr = p_priv->dtr_state;
2569 p_priv->resend_cont = 0;
2571 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2573 /* send the data out the device on control endpoint */
2574 this_urb->transfer_buffer_length = sizeof(msg);
2575 this_urb->dev = serial->dev;
2577 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2579 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
2584 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2586 struct usb_serial *serial = port->serial;
2587 struct keyspan_serial_private *s_priv;
2588 const struct keyspan_device_details *d_details;
2590 dbg("%s", __func__);
2592 s_priv = usb_get_serial_data(serial);
2593 d_details = s_priv->device_details;
2595 switch (d_details->msg_format) {
2597 keyspan_usa26_send_setup(serial, port, reset_port);
2600 keyspan_usa28_send_setup(serial, port, reset_port);
2603 keyspan_usa49_send_setup(serial, port, reset_port);
2606 keyspan_usa90_send_setup(serial, port, reset_port);
2609 keyspan_usa67_send_setup(serial, port, reset_port);
2615 /* Gets called by the "real" driver (ie once firmware is loaded
2616 and renumeration has taken place. */
2617 static int keyspan_startup(struct usb_serial *serial)
2620 struct usb_serial_port *port;
2621 struct keyspan_serial_private *s_priv;
2622 struct keyspan_port_private *p_priv;
2623 const struct keyspan_device_details *d_details;
2625 dbg("%s", __func__);
2627 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2628 if (d_details->product_id ==
2629 le16_to_cpu(serial->dev->descriptor.idProduct))
2631 if (d_details == NULL) {
2632 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2633 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2637 /* Setup private data for serial driver */
2638 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2640 dbg("%s - kmalloc for keyspan_serial_private failed.",
2645 s_priv->device_details = d_details;
2646 usb_set_serial_data(serial, s_priv);
2648 /* Now setup per port private data */
2649 for (i = 0; i < serial->num_ports; i++) {
2650 port = serial->port[i];
2651 p_priv = kzalloc(sizeof(struct keyspan_port_private),
2654 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
2657 p_priv->device_details = d_details;
2658 usb_set_serial_port_data(port, p_priv);
2661 keyspan_setup_urbs(serial);
2663 if (s_priv->instat_urb != NULL) {
2664 s_priv->instat_urb->dev = serial->dev;
2665 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2667 dbg("%s - submit instat urb failed %d", __func__,
2670 if (s_priv->indat_urb != NULL) {
2671 s_priv->indat_urb->dev = serial->dev;
2672 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2674 dbg("%s - submit indat urb failed %d", __func__,
2681 static void keyspan_shutdown(struct usb_serial *serial)
2684 struct usb_serial_port *port;
2685 struct keyspan_serial_private *s_priv;
2686 struct keyspan_port_private *p_priv;
2688 dbg("%s", __func__);
2690 s_priv = usb_get_serial_data(serial);
2692 /* Stop reading/writing urbs */
2693 stop_urb(s_priv->instat_urb);
2694 stop_urb(s_priv->glocont_urb);
2695 stop_urb(s_priv->indat_urb);
2696 for (i = 0; i < serial->num_ports; ++i) {
2697 port = serial->port[i];
2698 p_priv = usb_get_serial_port_data(port);
2699 stop_urb(p_priv->inack_urb);
2700 stop_urb(p_priv->outcont_urb);
2701 for (j = 0; j < 2; j++) {
2702 stop_urb(p_priv->in_urbs[j]);
2703 stop_urb(p_priv->out_urbs[j]);
2708 usb_free_urb(s_priv->instat_urb);
2709 usb_free_urb(s_priv->indat_urb);
2710 usb_free_urb(s_priv->glocont_urb);
2711 for (i = 0; i < serial->num_ports; ++i) {
2712 port = serial->port[i];
2713 p_priv = usb_get_serial_port_data(port);
2714 usb_free_urb(p_priv->inack_urb);
2715 usb_free_urb(p_priv->outcont_urb);
2716 for (j = 0; j < 2; j++) {
2717 usb_free_urb(p_priv->in_urbs[j]);
2718 usb_free_urb(p_priv->out_urbs[j]);
2722 /* dbg("Freeing serial->private."); */
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));
2733 MODULE_AUTHOR(DRIVER_AUTHOR);
2734 MODULE_DESCRIPTION(DRIVER_DESC);
2735 MODULE_LICENSE("GPL");
2737 MODULE_FIRMWARE("keyspan/usa28.fw");
2738 MODULE_FIRMWARE("keyspan/usa28x.fw");
2739 MODULE_FIRMWARE("keyspan/usa28xa.fw");
2740 MODULE_FIRMWARE("keyspan/usa28xb.fw");
2741 MODULE_FIRMWARE("keyspan/usa19.fw");
2742 MODULE_FIRMWARE("keyspan/usa19qi.fw");
2743 MODULE_FIRMWARE("keyspan/mpr.fw");
2744 MODULE_FIRMWARE("keyspan/usa19qw.fw");
2745 MODULE_FIRMWARE("keyspan/usa18x.fw");
2746 MODULE_FIRMWARE("keyspan/usa19w.fw");
2747 MODULE_FIRMWARE("keyspan/usa49w.fw");
2748 MODULE_FIRMWARE("keyspan/usa49wlc.fw");
2750 module_param(debug, bool, S_IRUGO | S_IWUSR);
2751 MODULE_PARM_DESC(debug, "Debug enabled or not");