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://blemings.org/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 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
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:
236 static void __exit keyspan_exit(void)
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);
245 module_init(keyspan_init);
246 module_exit(keyspan_exit);
248 static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
250 struct usb_serial_port *port = tty->driver_data;
251 struct keyspan_port_private *p_priv;
255 p_priv = usb_get_serial_port_data(port);
257 if (break_state == -1)
258 p_priv->break_on = 1;
260 p_priv->break_on = 0;
262 keyspan_send_setup(port, 0);
266 static void keyspan_set_termios(struct tty_struct *tty,
267 struct usb_serial_port *port, struct ktermios *old_termios)
269 int baud_rate, device_port;
270 struct keyspan_port_private *p_priv;
271 const struct keyspan_device_details *d_details;
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;
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;
291 baud_rate = tty_termios_baud_rate(old_termios);
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;
298 /* Mark/Space not supported */
299 tty->termios->c_cflag &= ~CMSPAR;
301 keyspan_send_setup(port, 0);
304 static int keyspan_tiocmget(struct tty_struct *tty)
306 struct usb_serial_port *port = tty->driver_data;
307 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
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);
320 static int keyspan_tiocmset(struct tty_struct *tty,
321 unsigned int set, unsigned int clear)
323 struct usb_serial_port *port = tty->driver_data;
324 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
327 p_priv->rts_state = 1;
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);
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)
343 struct keyspan_port_private *p_priv;
344 const struct keyspan_device_details *d_details;
347 struct urb *this_urb;
348 int err, maxDataLen, dataOffset;
350 p_priv = usb_get_serial_port_data(port);
351 d_details = p_priv->device_details;
353 if (d_details->msg_format == msg_usa90) {
361 dbg("%s - for port %d (%d chars), flip=%d",
362 __func__, port->number, count, p_priv->out_flip);
364 for (left = count; left > 0; left -= todo) {
366 if (todo > maxDataLen)
369 flip = p_priv->out_flip;
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__);
379 dbg("%s - endpoint %d flip %d",
380 __func__, usb_pipeendpoint(this_urb->pipe), flip);
382 if (this_urb->status == -EINPROGRESS) {
383 if (time_before(jiffies,
384 p_priv->tx_start_time[flip] + 10 * HZ))
386 usb_unlink_urb(this_urb);
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;
394 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
397 /* send the data out the bulk port */
398 this_urb->transfer_buffer_length = todo + dataOffset;
400 this_urb->dev = port->serial->dev;
401 err = usb_submit_urb(this_urb, GFP_ATOMIC);
403 dbg("usb_submit_urb(write bulk) failed (%d)", err);
404 p_priv->tx_start_time[flip] = jiffies;
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;
414 static void usa26_indat_callback(struct urb *urb)
418 struct usb_serial_port *port;
419 struct tty_struct *tty;
420 unsigned char *data = urb->transfer_buffer;
421 int status = urb->status;
425 endpoint = usb_pipeendpoint(urb->pipe);
428 dbg("%s - nonzero status: %x on endpoint %d.",
429 __func__, status, endpoint);
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)
444 for (i = 1; i < urb->actual_length ; ++i)
445 tty_insert_flip_char(tty, data[i], err);
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) {
451 int flag = TTY_NORMAL;
453 if (stat & RXERROR_OVERRUN) {
454 tty_insert_flip_char(tty, 0,
457 /* XXX should handle break (0x10) */
458 if (stat & RXERROR_PARITY)
460 else if (stat & RXERROR_FRAMING)
463 tty_insert_flip_char(tty, data[i+1], flag);
466 tty_flip_buffer_push(tty);
470 /* Resubmit urb so we continue receiving */
471 urb->dev = port->serial->dev;
472 err = usb_submit_urb(urb, GFP_ATOMIC);
474 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
477 /* Outdat handling is common for all devices */
478 static void usa2x_outdat_callback(struct urb *urb)
480 struct usb_serial_port *port;
481 struct keyspan_port_private *p_priv;
484 p_priv = usb_get_serial_port_data(port);
485 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
487 usb_serial_port_softint(port);
490 static void usa26_inack_callback(struct urb *urb)
496 static void usa26_outcont_callback(struct urb *urb)
498 struct usb_serial_port *port;
499 struct keyspan_port_private *p_priv;
502 p_priv = usb_get_serial_port_data(port);
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);
511 static void usa26_instat_callback(struct urb *urb)
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;
522 serial = urb->context;
525 dbg("%s - nonzero status: %x", __func__, status);
528 if (urb->actual_length != 9) {
529 dbg("%s - %d byte report??", __func__, urb->actual_length);
533 msg = (struct keyspan_usa26_portStatusMessage *)data;
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);
541 /* Now do something useful with the data */
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);
549 port = serial->port[msg->port];
550 p_priv = usb_get_serial_port_data(port);
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);
559 if (old_dcd_state != p_priv->dcd_state) {
560 tty = tty_port_tty_get(&port->port);
561 if (tty && !C_CLOCAL(tty))
566 /* Resubmit urb so we continue receiving */
567 urb->dev = serial->dev;
568 err = usb_submit_urb(urb, GFP_ATOMIC);
570 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
574 static void usa26_glocont_callback(struct urb *urb)
580 static void usa28_indat_callback(struct urb *urb)
583 struct usb_serial_port *port;
584 struct tty_struct *tty;
586 struct keyspan_port_private *p_priv;
587 int status = urb->status;
592 p_priv = usb_get_serial_port_data(port);
593 data = urb->transfer_buffer;
595 if (urb != p_priv->in_urbs[p_priv->in_flip])
600 dbg("%s - nonzero status: %x on endpoint %d.",
601 __func__, status, usb_pipeendpoint(urb->pipe));
606 p_priv = usb_get_serial_port_data(port);
607 data = urb->transfer_buffer;
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);
616 /* Resubmit urb so we continue receiving */
617 urb->dev = port->serial->dev;
618 err = usb_submit_urb(urb, GFP_ATOMIC);
620 dbg("%s - resubmit read urb failed. (%d)",
622 p_priv->in_flip ^= 1;
624 urb = p_priv->in_urbs[p_priv->in_flip];
625 } while (urb->status != -EINPROGRESS);
628 static void usa28_inack_callback(struct urb *urb)
633 static void usa28_outcont_callback(struct urb *urb)
635 struct usb_serial_port *port;
636 struct keyspan_port_private *p_priv;
639 p_priv = usb_get_serial_port_data(port);
641 if (p_priv->resend_cont) {
642 dbg("%s - sending setup", __func__);
643 keyspan_usa28_send_setup(port->serial, port,
644 p_priv->resend_cont - 1);
648 static void usa28_instat_callback(struct urb *urb)
651 unsigned char *data = urb->transfer_buffer;
652 struct keyspan_usa28_portStatusMessage *msg;
653 struct usb_serial *serial;
654 struct usb_serial_port *port;
655 struct keyspan_port_private *p_priv;
656 struct tty_struct *tty;
658 int status = urb->status;
660 serial = urb->context;
663 dbg("%s - nonzero status: %x", __func__, status);
667 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
668 dbg("%s - bad length %d", __func__, urb->actual_length);
672 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
673 data[0], data[1], data[2], data[3], data[4], data[5],
674 data[6], data[7], data[8], data[9], data[10], data[11]);*/
676 /* Now do something useful with the data */
677 msg = (struct keyspan_usa28_portStatusMessage *)data;
679 /* Check port number from message and retrieve private data */
680 if (msg->port >= serial->num_ports) {
681 dbg("%s - Unexpected port number %d", __func__, msg->port);
684 port = serial->port[msg->port];
685 p_priv = usb_get_serial_port_data(port);
687 /* Update handshaking pin state information */
688 old_dcd_state = p_priv->dcd_state;
689 p_priv->cts_state = ((msg->cts) ? 1 : 0);
690 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
691 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
692 p_priv->ri_state = ((msg->ri) ? 1 : 0);
694 if( old_dcd_state != p_priv->dcd_state && old_dcd_state) {
695 tty = tty_port_tty_get(&port->port);
696 if (tty && !C_CLOCAL(tty))
701 /* Resubmit urb so we continue receiving */
702 urb->dev = serial->dev;
703 err = usb_submit_urb(urb, GFP_ATOMIC);
705 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
709 static void usa28_glocont_callback(struct urb *urb)
715 static void usa49_glocont_callback(struct urb *urb)
717 struct usb_serial *serial;
718 struct usb_serial_port *port;
719 struct keyspan_port_private *p_priv;
724 serial = urb->context;
725 for (i = 0; i < serial->num_ports; ++i) {
726 port = serial->port[i];
727 p_priv = usb_get_serial_port_data(port);
729 if (p_priv->resend_cont) {
730 dbg("%s - sending setup", __func__);
731 keyspan_usa49_send_setup(serial, port,
732 p_priv->resend_cont - 1);
738 /* This is actually called glostat in the Keyspan
740 static void usa49_instat_callback(struct urb *urb)
743 unsigned char *data = urb->transfer_buffer;
744 struct keyspan_usa49_portStatusMessage *msg;
745 struct usb_serial *serial;
746 struct usb_serial_port *port;
747 struct keyspan_port_private *p_priv;
749 int status = urb->status;
753 serial = urb->context;
756 dbg("%s - nonzero status: %x", __func__, status);
760 if (urb->actual_length !=
761 sizeof(struct keyspan_usa49_portStatusMessage)) {
762 dbg("%s - bad length %d", __func__, urb->actual_length);
766 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
767 data[0], data[1], data[2], data[3], data[4], data[5],
768 data[6], data[7], data[8], data[9], data[10]);*/
770 /* Now do something useful with the data */
771 msg = (struct keyspan_usa49_portStatusMessage *)data;
773 /* Check port number from message and retrieve private data */
774 if (msg->portNumber >= serial->num_ports) {
775 dbg("%s - Unexpected port number %d",
776 __func__, msg->portNumber);
779 port = serial->port[msg->portNumber];
780 p_priv = usb_get_serial_port_data(port);
782 /* Update handshaking pin state information */
783 old_dcd_state = p_priv->dcd_state;
784 p_priv->cts_state = ((msg->cts) ? 1 : 0);
785 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
786 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
787 p_priv->ri_state = ((msg->ri) ? 1 : 0);
789 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
790 struct tty_struct *tty = tty_port_tty_get(&port->port);
791 if (tty && !C_CLOCAL(tty))
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 = tty_port_tty_get(&port->port);
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) {
841 int flag = TTY_NORMAL;
843 if (stat & RXERROR_OVERRUN) {
844 tty_insert_flip_char(tty, 0,
847 /* XXX should handle break (0x10) */
848 if (stat & RXERROR_PARITY)
850 else if (stat & RXERROR_FRAMING)
853 tty_insert_flip_char(tty, data[i+1], flag);
856 tty_flip_buffer_push(tty);
860 /* Resubmit urb so we continue receiving */
861 urb->dev = port->serial->dev;
862 err = usb_submit_urb(urb, GFP_ATOMIC);
864 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
867 static void usa49wg_indat_callback(struct urb *urb)
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;
878 serial = urb->context;
881 dbg("%s - nonzero status: %x", __func__, status);
885 /* inbound data is in the form P#, len, status, data */
889 if (urb->actual_length) {
890 while (i < urb->actual_length) {
892 /* Check port number from message*/
893 if (data[i] >= serial->num_ports) {
894 dbg("%s - Unexpected port number %d",
898 port = serial->port[data[i++]];
899 tty = tty_port_tty_get(&port->port);
902 /* 0x80 bit is error flag */
903 if ((data[i] & 0x80) == 0) {
904 /* no error on any byte */
906 for (x = 1; x < len ; ++x)
907 tty_insert_flip_char(tty, data[i++], 0);
910 * some bytes had errors, every byte has status
912 for (x = 0; x + 1 < len; x += 2) {
914 int flag = TTY_NORMAL;
916 if (stat & RXERROR_OVERRUN) {
917 tty_insert_flip_char(tty, 0,
920 /* XXX should handle break (0x10) */
921 if (stat & RXERROR_PARITY)
923 else if (stat & RXERROR_FRAMING)
926 tty_insert_flip_char(tty,
931 tty_flip_buffer_push(tty);
936 /* Resubmit urb so we continue receiving */
937 urb->dev = serial->dev;
939 err = usb_submit_urb(urb, GFP_ATOMIC);
941 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
944 /* not used, usa-49 doesn't have per-port control endpoints */
945 static void usa49_outcont_callback(struct urb *urb)
950 static void usa90_indat_callback(struct urb *urb)
954 struct usb_serial_port *port;
955 struct keyspan_port_private *p_priv;
956 struct tty_struct *tty;
957 unsigned char *data = urb->transfer_buffer;
958 int status = urb->status;
962 endpoint = usb_pipeendpoint(urb->pipe);
965 dbg("%s - nonzero status: %x on endpoint %d.",
966 __func__, status, endpoint);
971 p_priv = usb_get_serial_port_data(port);
973 if (urb->actual_length) {
974 tty = tty_port_tty_get(&port->port);
975 /* if current mode is DMA, looks like usa28 format
976 otherwise looks like usa26 data format */
978 if (p_priv->baud > 57600)
979 tty_insert_flip_string(tty, data, urb->actual_length);
981 /* 0x80 bit is error flag */
982 if ((data[0] & 0x80) == 0) {
983 /* no errors on individual bytes, only
984 possible overrun err*/
985 if (data[0] & RXERROR_OVERRUN)
989 for (i = 1; i < urb->actual_length ; ++i)
990 tty_insert_flip_char(tty, data[i],
993 /* some bytes had errors, every byte has status */
994 dbg("%s - RX error!!!!", __func__);
995 for (i = 0; i + 1 < urb->actual_length; i += 2) {
997 int flag = TTY_NORMAL;
999 if (stat & RXERROR_OVERRUN) {
1000 tty_insert_flip_char(
1004 /* XXX should handle break (0x10) */
1005 if (stat & RXERROR_PARITY)
1007 else if (stat & RXERROR_FRAMING)
1010 tty_insert_flip_char(tty, data[i+1],
1015 tty_flip_buffer_push(tty);
1019 /* Resubmit urb so we continue receiving */
1020 urb->dev = port->serial->dev;
1021 err = usb_submit_urb(urb, GFP_ATOMIC);
1023 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1027 static void usa90_instat_callback(struct urb *urb)
1029 unsigned char *data = urb->transfer_buffer;
1030 struct keyspan_usa90_portStatusMessage *msg;
1031 struct usb_serial *serial;
1032 struct usb_serial_port *port;
1033 struct keyspan_port_private *p_priv;
1034 struct tty_struct *tty;
1035 int old_dcd_state, err;
1036 int status = urb->status;
1038 serial = urb->context;
1041 dbg("%s - nonzero status: %x", __func__, status);
1044 if (urb->actual_length < 14) {
1045 dbg("%s - %d byte report??", __func__, urb->actual_length);
1049 msg = (struct keyspan_usa90_portStatusMessage *)data;
1051 /* Now do something useful with the data */
1053 port = serial->port[0];
1054 p_priv = usb_get_serial_port_data(port);
1056 /* Update handshaking pin state information */
1057 old_dcd_state = p_priv->dcd_state;
1058 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1059 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1060 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1061 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1063 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1064 tty = tty_port_tty_get(&port->port);
1065 if (tty && !C_CLOCAL(tty))
1070 /* Resubmit urb so we continue receiving */
1071 urb->dev = serial->dev;
1072 err = usb_submit_urb(urb, GFP_ATOMIC);
1074 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1079 static void usa90_outcont_callback(struct urb *urb)
1081 struct usb_serial_port *port;
1082 struct keyspan_port_private *p_priv;
1084 port = urb->context;
1085 p_priv = usb_get_serial_port_data(port);
1087 if (p_priv->resend_cont) {
1088 dbg("%s - sending setup", __func__);
1089 keyspan_usa90_send_setup(port->serial, port,
1090 p_priv->resend_cont - 1);
1094 /* Status messages from the 28xg */
1095 static void usa67_instat_callback(struct urb *urb)
1098 unsigned char *data = urb->transfer_buffer;
1099 struct keyspan_usa67_portStatusMessage *msg;
1100 struct usb_serial *serial;
1101 struct usb_serial_port *port;
1102 struct keyspan_port_private *p_priv;
1104 int status = urb->status;
1106 dbg("%s", __func__);
1108 serial = urb->context;
1111 dbg("%s - nonzero status: %x", __func__, status);
1115 if (urb->actual_length !=
1116 sizeof(struct keyspan_usa67_portStatusMessage)) {
1117 dbg("%s - bad length %d", __func__, urb->actual_length);
1122 /* Now do something useful with the data */
1123 msg = (struct keyspan_usa67_portStatusMessage *)data;
1125 /* Check port number from message and retrieve private data */
1126 if (msg->port >= serial->num_ports) {
1127 dbg("%s - Unexpected port number %d", __func__, msg->port);
1131 port = serial->port[msg->port];
1132 p_priv = usb_get_serial_port_data(port);
1134 /* Update handshaking pin state information */
1135 old_dcd_state = p_priv->dcd_state;
1136 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1137 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1139 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1140 struct tty_struct *tty = tty_port_tty_get(&port->port);
1141 if (tty && !C_CLOCAL(tty))
1146 /* Resubmit urb so we continue receiving */
1147 urb->dev = serial->dev;
1148 err = usb_submit_urb(urb, GFP_ATOMIC);
1150 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
1153 static void usa67_glocont_callback(struct urb *urb)
1155 struct usb_serial *serial;
1156 struct usb_serial_port *port;
1157 struct keyspan_port_private *p_priv;
1160 dbg("%s", __func__);
1162 serial = urb->context;
1163 for (i = 0; i < serial->num_ports; ++i) {
1164 port = serial->port[i];
1165 p_priv = usb_get_serial_port_data(port);
1167 if (p_priv->resend_cont) {
1168 dbg("%s - sending setup", __func__);
1169 keyspan_usa67_send_setup(serial, port,
1170 p_priv->resend_cont - 1);
1176 static int keyspan_write_room(struct tty_struct *tty)
1178 struct usb_serial_port *port = tty->driver_data;
1179 struct keyspan_port_private *p_priv;
1180 const struct keyspan_device_details *d_details;
1183 struct urb *this_urb;
1185 dbg("%s", __func__);
1186 p_priv = usb_get_serial_port_data(port);
1187 d_details = p_priv->device_details;
1189 /* FIXME: locking */
1190 if (d_details->msg_format == msg_usa90)
1195 flip = p_priv->out_flip;
1197 /* Check both endpoints to see if any are available. */
1198 this_urb = p_priv->out_urbs[flip];
1199 if (this_urb != NULL) {
1200 if (this_urb->status != -EINPROGRESS)
1202 flip = (flip + 1) & d_details->outdat_endp_flip;
1203 this_urb = p_priv->out_urbs[flip];
1204 if (this_urb != NULL) {
1205 if (this_urb->status != -EINPROGRESS)
1213 static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1215 struct keyspan_port_private *p_priv;
1216 struct keyspan_serial_private *s_priv;
1217 struct usb_serial *serial = port->serial;
1218 const struct keyspan_device_details *d_details;
1220 int baud_rate, device_port;
1222 unsigned int cflag = 0;
1224 s_priv = usb_get_serial_data(serial);
1225 p_priv = usb_get_serial_port_data(port);
1226 d_details = p_priv->device_details;
1228 dbg("%s - port%d.", __func__, port->number);
1230 /* Set some sane defaults */
1231 p_priv->rts_state = 1;
1232 p_priv->dtr_state = 1;
1233 p_priv->baud = 9600;
1235 /* force baud and lcr to be set on open */
1236 p_priv->old_baud = 0;
1237 p_priv->old_cflag = 0;
1239 p_priv->out_flip = 0;
1240 p_priv->in_flip = 0;
1242 /* Reset low level data toggle and start reading from endpoints */
1243 for (i = 0; i < 2; i++) {
1244 urb = p_priv->in_urbs[i];
1247 urb->dev = serial->dev;
1249 /* make sure endpoint data toggle is synchronized
1251 usb_clear_halt(urb->dev, urb->pipe);
1252 err = usb_submit_urb(urb, GFP_KERNEL);
1254 dbg("%s - submit urb %d failed (%d)",
1258 /* Reset low level data toggle on out endpoints */
1259 for (i = 0; i < 2; i++) {
1260 urb = p_priv->out_urbs[i];
1263 urb->dev = serial->dev;
1264 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1265 usb_pipeout(urb->pipe), 0); */
1268 /* get the terminal config for the setup message now so we don't
1269 * need to send 2 of them */
1271 device_port = port->number - port->serial->minor;
1273 cflag = tty->termios->c_cflag;
1274 /* Baud rate calculation takes baud rate as an integer
1275 so other rates can be generated if desired. */
1276 baud_rate = tty_get_baud_rate(tty);
1277 /* If no match or invalid, leave as default */
1279 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
1280 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1281 p_priv->baud = baud_rate;
1284 /* set CTS/RTS handshake etc. */
1285 p_priv->cflag = cflag;
1286 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1288 keyspan_send_setup(port, 1);
1290 /* keyspan_set_termios(port, NULL); */
1295 static inline void stop_urb(struct urb *urb)
1297 if (urb && urb->status == -EINPROGRESS)
1301 static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1303 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1305 p_priv->rts_state = on;
1306 p_priv->dtr_state = on;
1307 keyspan_send_setup(port, 0);
1310 static void keyspan_close(struct usb_serial_port *port)
1313 struct usb_serial *serial = port->serial;
1314 struct keyspan_serial_private *s_priv;
1315 struct keyspan_port_private *p_priv;
1317 dbg("%s", __func__);
1318 s_priv = usb_get_serial_data(serial);
1319 p_priv = usb_get_serial_port_data(port);
1321 p_priv->rts_state = 0;
1322 p_priv->dtr_state = 0;
1325 keyspan_send_setup(port, 2);
1326 /* pilot-xfer seems to work best with this delay */
1328 /* keyspan_set_termios(port, NULL); */
1331 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
1332 dbg("%s - urb in progress", __func__);
1335 p_priv->out_flip = 0;
1336 p_priv->in_flip = 0;
1339 /* Stop reading/writing urbs */
1340 stop_urb(p_priv->inack_urb);
1341 /* stop_urb(p_priv->outcont_urb); */
1342 for (i = 0; i < 2; i++) {
1343 stop_urb(p_priv->in_urbs[i]);
1344 stop_urb(p_priv->out_urbs[i]);
1349 /* download the firmware to a pre-renumeration device */
1350 static int keyspan_fake_startup(struct usb_serial *serial)
1353 const struct ihex_binrec *record;
1355 const struct firmware *fw;
1357 dbg("Keyspan startup version %04x product %04x",
1358 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1359 le16_to_cpu(serial->dev->descriptor.idProduct));
1361 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1363 dbg("Firmware already loaded. Quitting.");
1367 /* Select firmware image on the basis of idProduct */
1368 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1369 case keyspan_usa28_pre_product_id:
1370 fw_name = "keyspan/usa28.fw";
1373 case keyspan_usa28x_pre_product_id:
1374 fw_name = "keyspan/usa28x.fw";
1377 case keyspan_usa28xa_pre_product_id:
1378 fw_name = "keyspan/usa28xa.fw";
1381 case keyspan_usa28xb_pre_product_id:
1382 fw_name = "keyspan/usa28xb.fw";
1385 case keyspan_usa19_pre_product_id:
1386 fw_name = "keyspan/usa19.fw";
1389 case keyspan_usa19qi_pre_product_id:
1390 fw_name = "keyspan/usa19qi.fw";
1393 case keyspan_mpr_pre_product_id:
1394 fw_name = "keyspan/mpr.fw";
1397 case keyspan_usa19qw_pre_product_id:
1398 fw_name = "keyspan/usa19qw.fw";
1401 case keyspan_usa18x_pre_product_id:
1402 fw_name = "keyspan/usa18x.fw";
1405 case keyspan_usa19w_pre_product_id:
1406 fw_name = "keyspan/usa19w.fw";
1409 case keyspan_usa49w_pre_product_id:
1410 fw_name = "keyspan/usa49w.fw";
1413 case keyspan_usa49wlc_pre_product_id:
1414 fw_name = "keyspan/usa49wlc.fw";
1418 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1419 le16_to_cpu(serial->dev->descriptor.idProduct));
1423 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
1424 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1428 dbg("Uploading Keyspan %s firmware.", fw_name);
1430 /* download the firmware image */
1431 response = ezusb_set_reset(serial, 1);
1433 record = (const struct ihex_binrec *)fw->data;
1436 response = ezusb_writememory(serial, be32_to_cpu(record->addr),
1437 (unsigned char *)record->data,
1438 be16_to_cpu(record->len), 0xa0);
1440 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
1441 response, be32_to_cpu(record->addr),
1442 record->data, be16_to_cpu(record->len));
1445 record = ihex_next_binrec(record);
1447 release_firmware(fw);
1448 /* bring device out of reset. Renumeration will occur in a
1449 moment and the new device will bind to the real driver */
1450 response = ezusb_set_reset(serial, 0);
1452 /* we don't want this device to have a driver assigned to it. */
1456 /* Helper functions used by keyspan_setup_urbs */
1457 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1460 struct usb_host_interface *iface_desc;
1461 struct usb_endpoint_descriptor *ep;
1464 iface_desc = serial->interface->cur_altsetting;
1465 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1466 ep = &iface_desc->endpoint[i].desc;
1467 if (ep->bEndpointAddress == endpoint)
1470 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1471 "endpoint %x\n", endpoint);
1475 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1476 int dir, void *ctx, char *buf, int len,
1477 void (*callback)(struct urb *))
1480 struct usb_endpoint_descriptor const *ep_desc;
1481 char const *ep_type_name;
1484 return NULL; /* endpoint not needed */
1486 dbg("%s - alloc for endpoint %d.", __func__, endpoint);
1487 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1489 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
1493 if (endpoint == 0) {
1494 /* control EP filled in when used */
1498 ep_desc = find_ep(serial, endpoint);
1500 /* leak the urb, something's wrong and the callers don't care */
1503 if (usb_endpoint_xfer_int(ep_desc)) {
1504 ep_type_name = "INT";
1505 usb_fill_int_urb(urb, serial->dev,
1506 usb_sndintpipe(serial->dev, endpoint) | dir,
1507 buf, len, callback, ctx,
1508 ep_desc->bInterval);
1509 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1510 ep_type_name = "BULK";
1511 usb_fill_bulk_urb(urb, serial->dev,
1512 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1513 buf, len, callback, ctx);
1515 dev_warn(&serial->interface->dev,
1516 "unsupported endpoint type %x\n",
1517 usb_endpoint_type(ep_desc));
1522 dbg("%s - using urb %p for %s endpoint %x",
1523 __func__, urb, ep_type_name, endpoint);
1527 static struct callbacks {
1528 void (*instat_callback)(struct urb *);
1529 void (*glocont_callback)(struct urb *);
1530 void (*indat_callback)(struct urb *);
1531 void (*outdat_callback)(struct urb *);
1532 void (*inack_callback)(struct urb *);
1533 void (*outcont_callback)(struct urb *);
1534 } keyspan_callbacks[] = {
1536 /* msg_usa26 callbacks */
1537 .instat_callback = usa26_instat_callback,
1538 .glocont_callback = usa26_glocont_callback,
1539 .indat_callback = usa26_indat_callback,
1540 .outdat_callback = usa2x_outdat_callback,
1541 .inack_callback = usa26_inack_callback,
1542 .outcont_callback = usa26_outcont_callback,
1544 /* msg_usa28 callbacks */
1545 .instat_callback = usa28_instat_callback,
1546 .glocont_callback = usa28_glocont_callback,
1547 .indat_callback = usa28_indat_callback,
1548 .outdat_callback = usa2x_outdat_callback,
1549 .inack_callback = usa28_inack_callback,
1550 .outcont_callback = usa28_outcont_callback,
1552 /* msg_usa49 callbacks */
1553 .instat_callback = usa49_instat_callback,
1554 .glocont_callback = usa49_glocont_callback,
1555 .indat_callback = usa49_indat_callback,
1556 .outdat_callback = usa2x_outdat_callback,
1557 .inack_callback = usa49_inack_callback,
1558 .outcont_callback = usa49_outcont_callback,
1560 /* msg_usa90 callbacks */
1561 .instat_callback = usa90_instat_callback,
1562 .glocont_callback = usa28_glocont_callback,
1563 .indat_callback = usa90_indat_callback,
1564 .outdat_callback = usa2x_outdat_callback,
1565 .inack_callback = usa28_inack_callback,
1566 .outcont_callback = usa90_outcont_callback,
1568 /* msg_usa67 callbacks */
1569 .instat_callback = usa67_instat_callback,
1570 .glocont_callback = usa67_glocont_callback,
1571 .indat_callback = usa26_indat_callback,
1572 .outdat_callback = usa2x_outdat_callback,
1573 .inack_callback = usa26_inack_callback,
1574 .outcont_callback = usa26_outcont_callback,
1578 /* Generic setup urbs function that uses
1579 data in device_details */
1580 static void keyspan_setup_urbs(struct usb_serial *serial)
1583 struct keyspan_serial_private *s_priv;
1584 const struct keyspan_device_details *d_details;
1585 struct usb_serial_port *port;
1586 struct keyspan_port_private *p_priv;
1587 struct callbacks *cback;
1590 dbg("%s", __func__);
1592 s_priv = usb_get_serial_data(serial);
1593 d_details = s_priv->device_details;
1595 /* Setup values for the various callback routines */
1596 cback = &keyspan_callbacks[d_details->msg_format];
1598 /* Allocate and set up urbs for each one that is in use,
1599 starting with instat endpoints */
1600 s_priv->instat_urb = keyspan_setup_urb
1601 (serial, d_details->instat_endpoint, USB_DIR_IN,
1602 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1603 cback->instat_callback);
1605 s_priv->indat_urb = keyspan_setup_urb
1606 (serial, d_details->indat_endpoint, USB_DIR_IN,
1607 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1608 usa49wg_indat_callback);
1610 s_priv->glocont_urb = keyspan_setup_urb
1611 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1612 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1613 cback->glocont_callback);
1615 /* Setup endpoints for each port specific thing */
1616 for (i = 0; i < d_details->num_ports; i++) {
1617 port = serial->port[i];
1618 p_priv = usb_get_serial_port_data(port);
1620 /* Do indat endpoints first, once for each flip */
1621 endp = d_details->indat_endpoints[i];
1622 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1623 p_priv->in_urbs[j] = keyspan_setup_urb
1624 (serial, endp, USB_DIR_IN, port,
1625 p_priv->in_buffer[j], 64,
1626 cback->indat_callback);
1629 p_priv->in_urbs[j] = NULL;
1631 /* outdat endpoints also have flip */
1632 endp = d_details->outdat_endpoints[i];
1633 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1634 p_priv->out_urbs[j] = keyspan_setup_urb
1635 (serial, endp, USB_DIR_OUT, port,
1636 p_priv->out_buffer[j], 64,
1637 cback->outdat_callback);
1640 p_priv->out_urbs[j] = NULL;
1642 /* inack endpoint */
1643 p_priv->inack_urb = keyspan_setup_urb
1644 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1645 port, p_priv->inack_buffer, 1, cback->inack_callback);
1647 /* outcont endpoint */
1648 p_priv->outcont_urb = keyspan_setup_urb
1649 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1650 port, p_priv->outcont_buffer, 64,
1651 cback->outcont_callback);
1655 /* usa19 function doesn't require prescaler */
1656 static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1657 u8 *rate_low, u8 *prescaler, int portnum)
1659 u32 b16, /* baud rate times 16 (actual rate used internally) */
1661 cnt; /* inverse of divisor (programmed into 8051) */
1663 dbg("%s - %d.", __func__, baud_rate);
1665 /* prevent divide by zero... */
1666 b16 = baud_rate * 16L;
1668 return KEYSPAN_INVALID_BAUD_RATE;
1669 /* Any "standard" rate over 57k6 is marginal on the USA-19
1670 as we run out of divisor resolution. */
1671 if (baud_rate > 57600)
1672 return KEYSPAN_INVALID_BAUD_RATE;
1674 /* calculate the divisor and the counter (its inverse) */
1675 div = baudclk / b16;
1677 return KEYSPAN_INVALID_BAUD_RATE;
1682 return KEYSPAN_INVALID_BAUD_RATE;
1684 /* return the counter values if non-null */
1686 *rate_low = (u8) (cnt & 0xff);
1688 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1689 if (rate_low && rate_hi)
1690 dbg("%s - %d %02x %02x.",
1691 __func__, baud_rate, *rate_hi, *rate_low);
1692 return KEYSPAN_BAUD_RATE_OK;
1695 /* usa19hs function doesn't require prescaler */
1696 static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1697 u8 *rate_low, u8 *prescaler, int portnum)
1699 u32 b16, /* baud rate times 16 (actual rate used internally) */
1702 dbg("%s - %d.", __func__, baud_rate);
1704 /* prevent divide by zero... */
1705 b16 = baud_rate * 16L;
1707 return KEYSPAN_INVALID_BAUD_RATE;
1709 /* calculate the divisor */
1710 div = baudclk / b16;
1712 return KEYSPAN_INVALID_BAUD_RATE;
1715 return KEYSPAN_INVALID_BAUD_RATE;
1717 /* return the counter values if non-null */
1719 *rate_low = (u8) (div & 0xff);
1722 *rate_hi = (u8) ((div >> 8) & 0xff);
1724 if (rate_low && rate_hi)
1725 dbg("%s - %d %02x %02x.",
1726 __func__, baud_rate, *rate_hi, *rate_low);
1728 return KEYSPAN_BAUD_RATE_OK;
1731 static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1732 u8 *rate_low, u8 *prescaler, int portnum)
1734 u32 b16, /* baud rate times 16 (actual rate used internally) */
1735 clk, /* clock with 13/8 prescaler */
1736 div, /* divisor using 13/8 prescaler */
1737 res, /* resulting baud rate using 13/8 prescaler */
1738 diff, /* error using 13/8 prescaler */
1743 dbg("%s - %d.", __func__, baud_rate);
1745 /* prevent divide by zero */
1746 b16 = baud_rate * 16L;
1748 return KEYSPAN_INVALID_BAUD_RATE;
1750 /* Calculate prescaler by trying them all and looking
1753 /* start with largest possible difference */
1754 smallest_diff = 0xffffffff;
1756 /* 0 is an invalid prescaler, used as a flag */
1759 for (i = 8; i <= 0xff; ++i) {
1760 clk = (baudclk * 8) / (u32) i;
1767 diff = (res > b16) ? (res-b16) : (b16-res);
1769 if (diff < smallest_diff) {
1771 smallest_diff = diff;
1775 if (best_prescaler == 0)
1776 return KEYSPAN_INVALID_BAUD_RATE;
1778 clk = (baudclk * 8) / (u32) best_prescaler;
1781 /* return the divisor and prescaler if non-null */
1783 *rate_low = (u8) (div & 0xff);
1785 *rate_hi = (u8) ((div >> 8) & 0xff);
1787 *prescaler = best_prescaler;
1788 /* dbg("%s - %d %d", __func__, *prescaler, div); */
1790 return KEYSPAN_BAUD_RATE_OK;
1793 /* USA-28 supports different maximum baud rates on each port */
1794 static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1795 u8 *rate_low, u8 *prescaler, int portnum)
1797 u32 b16, /* baud rate times 16 (actual rate used internally) */
1799 cnt; /* inverse of divisor (programmed into 8051) */
1801 dbg("%s - %d.", __func__, baud_rate);
1803 /* prevent divide by zero */
1804 b16 = baud_rate * 16L;
1806 return KEYSPAN_INVALID_BAUD_RATE;
1808 /* calculate the divisor and the counter (its inverse) */
1809 div = KEYSPAN_USA28_BAUDCLK / b16;
1811 return KEYSPAN_INVALID_BAUD_RATE;
1815 /* check for out of range, based on portnum,
1816 and return result */
1819 return KEYSPAN_INVALID_BAUD_RATE;
1823 return KEYSPAN_INVALID_BAUD_RATE;
1825 return KEYSPAN_INVALID_BAUD_RATE;
1828 /* return the counter values if not NULL
1829 (port 1 will ignore retHi) */
1831 *rate_low = (u8) (cnt & 0xff);
1833 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1834 dbg("%s - %d OK.", __func__, baud_rate);
1835 return KEYSPAN_BAUD_RATE_OK;
1838 static int keyspan_usa26_send_setup(struct usb_serial *serial,
1839 struct usb_serial_port *port,
1842 struct keyspan_usa26_portControlMessage msg;
1843 struct keyspan_serial_private *s_priv;
1844 struct keyspan_port_private *p_priv;
1845 const struct keyspan_device_details *d_details;
1847 struct urb *this_urb;
1848 int device_port, err;
1850 dbg("%s reset=%d", __func__, reset_port);
1852 s_priv = usb_get_serial_data(serial);
1853 p_priv = usb_get_serial_port_data(port);
1854 d_details = s_priv->device_details;
1855 device_port = port->number - port->serial->minor;
1857 outcont_urb = d_details->outcont_endpoints[device_port];
1858 this_urb = p_priv->outcont_urb;
1860 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
1862 /* Make sure we have an urb then send the message */
1863 if (this_urb == NULL) {
1864 dbg("%s - oops no urb.", __func__);
1868 /* Save reset port val for resend.
1869 Don't overwrite resend for open/close condition. */
1870 if ((reset_port + 1) > p_priv->resend_cont)
1871 p_priv->resend_cont = reset_port + 1;
1872 if (this_urb->status == -EINPROGRESS) {
1873 /* dbg("%s - already writing", __func__); */
1878 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
1880 /* Only set baud rate if it's changed */
1881 if (p_priv->old_baud != p_priv->baud) {
1882 p_priv->old_baud = p_priv->baud;
1883 msg.setClocking = 0xff;
1884 if (d_details->calculate_baud_rate
1885 (p_priv->baud, d_details->baudclk, &msg.baudHi,
1886 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
1887 dbg("%s - Invalid baud rate %d requested, using 9600.",
1888 __func__, p_priv->baud);
1890 msg.baudHi = 125; /* Values for 9600 baud */
1893 msg.setPrescaler = 0xff;
1896 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1897 switch (p_priv->cflag & CSIZE) {
1899 msg.lcr |= USA_DATABITS_5;
1902 msg.lcr |= USA_DATABITS_6;
1905 msg.lcr |= USA_DATABITS_7;
1908 msg.lcr |= USA_DATABITS_8;
1911 if (p_priv->cflag & PARENB) {
1912 /* note USA_PARITY_NONE == 0 */
1913 msg.lcr |= (p_priv->cflag & PARODD)?
1914 USA_PARITY_ODD : USA_PARITY_EVEN;
1918 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1919 msg.xonFlowControl = 0;
1920 msg.setFlowControl = 0xff;
1921 msg.forwardingLength = 16;
1926 if (reset_port == 1) {
1935 msg.returnStatus = 0;
1936 msg.resetDataToggle = 0xff;
1940 else if (reset_port == 2) {
1949 msg.returnStatus = 0;
1950 msg.resetDataToggle = 0;
1953 /* Sending intermediate configs */
1955 msg._txOn = (!p_priv->break_on);
1958 msg.txBreak = (p_priv->break_on);
1963 msg.returnStatus = 0;
1964 msg.resetDataToggle = 0x0;
1967 /* Do handshaking outputs */
1968 msg.setTxTriState_setRts = 0xff;
1969 msg.txTriState_rts = p_priv->rts_state;
1971 msg.setHskoa_setDtr = 0xff;
1972 msg.hskoa_dtr = p_priv->dtr_state;
1974 p_priv->resend_cont = 0;
1975 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1977 /* send the data out the device on control endpoint */
1978 this_urb->transfer_buffer_length = sizeof(msg);
1980 this_urb->dev = serial->dev;
1981 err = usb_submit_urb(this_urb, GFP_ATOMIC);
1983 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
1986 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
1987 outcont_urb, this_urb->transfer_buffer_length,
1988 usb_pipeendpoint(this_urb->pipe));
1995 static int keyspan_usa28_send_setup(struct usb_serial *serial,
1996 struct usb_serial_port *port,
1999 struct keyspan_usa28_portControlMessage msg;
2000 struct keyspan_serial_private *s_priv;
2001 struct keyspan_port_private *p_priv;
2002 const struct keyspan_device_details *d_details;
2003 struct urb *this_urb;
2004 int device_port, err;
2006 dbg("%s", __func__);
2008 s_priv = usb_get_serial_data(serial);
2009 p_priv = usb_get_serial_port_data(port);
2010 d_details = s_priv->device_details;
2011 device_port = port->number - port->serial->minor;
2013 /* only do something if we have a bulk out endpoint */
2014 this_urb = p_priv->outcont_urb;
2015 if (this_urb == NULL) {
2016 dbg("%s - oops no urb.", __func__);
2020 /* Save reset port val for resend.
2021 Don't overwrite resend for open/close condition. */
2022 if ((reset_port + 1) > p_priv->resend_cont)
2023 p_priv->resend_cont = reset_port + 1;
2024 if (this_urb->status == -EINPROGRESS) {
2025 dbg("%s already writing", __func__);
2030 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2032 msg.setBaudRate = 1;
2033 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2034 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2035 dbg("%s - Invalid baud rate requested %d.",
2036 __func__, p_priv->baud);
2038 msg.baudHi = 0xb2; /* Values for 9600 baud */
2041 /* If parity is enabled, we must calculate it ourselves. */
2042 msg.parity = 0; /* XXX for now */
2044 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2045 msg.xonFlowControl = 0;
2047 /* Do handshaking outputs, DTR is inverted relative to RTS */
2048 msg.rts = p_priv->rts_state;
2049 msg.dtr = p_priv->dtr_state;
2051 msg.forwardingLength = 16;
2053 msg.breakThreshold = 45;
2057 /*msg.returnStatus = 1;
2058 msg.resetDataToggle = 0xff;*/
2060 if (reset_port == 1) {
2064 msg.txForceXoff = 0;
2070 msg.returnStatus = 0;
2071 msg.resetDataToggle = 0xff;
2074 else if (reset_port == 2) {
2078 msg.txForceXoff = 0;
2084 msg.returnStatus = 0;
2085 msg.resetDataToggle = 0;
2087 /* Sending intermediate configs */
2089 msg._txOn = (!p_priv->break_on);
2092 msg.txForceXoff = 0;
2093 msg.txBreak = (p_priv->break_on);
2098 msg.returnStatus = 0;
2099 msg.resetDataToggle = 0x0;
2102 p_priv->resend_cont = 0;
2103 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2105 /* send the data out the device on control endpoint */
2106 this_urb->transfer_buffer_length = sizeof(msg);
2108 this_urb->dev = serial->dev;
2109 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2111 dbg("%s - usb_submit_urb(setup) failed", __func__);
2114 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
2115 this_urb->transfer_buffer_length);
2122 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2123 struct usb_serial_port *port,
2126 struct keyspan_usa49_portControlMessage msg;
2127 struct usb_ctrlrequest *dr = NULL;
2128 struct keyspan_serial_private *s_priv;
2129 struct keyspan_port_private *p_priv;
2130 const struct keyspan_device_details *d_details;
2131 struct urb *this_urb;
2132 int err, device_port;
2134 dbg("%s", __func__);
2136 s_priv = usb_get_serial_data(serial);
2137 p_priv = usb_get_serial_port_data(port);
2138 d_details = s_priv->device_details;
2140 this_urb = s_priv->glocont_urb;
2142 /* Work out which port within the device is being setup */
2143 device_port = port->number - port->serial->minor;
2145 /* Make sure we have an urb then send the message */
2146 if (this_urb == NULL) {
2147 dbg("%s - oops no urb for port %d.", __func__, port->number);
2151 dbg("%s - endpoint %d port %d (%d)",
2152 __func__, usb_pipeendpoint(this_urb->pipe),
2153 port->number, device_port);
2155 /* Save reset port val for resend.
2156 Don't overwrite resend for open/close condition. */
2157 if ((reset_port + 1) > p_priv->resend_cont)
2158 p_priv->resend_cont = reset_port + 1;
2160 if (this_urb->status == -EINPROGRESS) {
2161 /* dbg("%s - already writing", __func__); */
2166 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2168 /*msg.portNumber = port->number;*/
2169 msg.portNumber = device_port;
2171 /* Only set baud rate if it's changed */
2172 if (p_priv->old_baud != p_priv->baud) {
2173 p_priv->old_baud = p_priv->baud;
2174 msg.setClocking = 0xff;
2175 if (d_details->calculate_baud_rate
2176 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2177 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2178 dbg("%s - Invalid baud rate %d requested, using 9600.",
2179 __func__, p_priv->baud);
2181 msg.baudHi = 125; /* Values for 9600 baud */
2184 /* msg.setPrescaler = 0xff; */
2187 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2188 switch (p_priv->cflag & CSIZE) {
2190 msg.lcr |= USA_DATABITS_5;
2193 msg.lcr |= USA_DATABITS_6;
2196 msg.lcr |= USA_DATABITS_7;
2199 msg.lcr |= USA_DATABITS_8;
2202 if (p_priv->cflag & PARENB) {
2203 /* note USA_PARITY_NONE == 0 */
2204 msg.lcr |= (p_priv->cflag & PARODD)?
2205 USA_PARITY_ODD : USA_PARITY_EVEN;
2209 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2210 msg.xonFlowControl = 0;
2211 msg.setFlowControl = 0xff;
2213 msg.forwardingLength = 16;
2218 if (reset_port == 1) {
2227 msg.returnStatus = 0;
2228 msg.resetDataToggle = 0xff;
2230 msg.disablePort = 0;
2233 else if (reset_port == 2) {
2242 msg.returnStatus = 0;
2243 msg.resetDataToggle = 0;
2245 msg.disablePort = 1;
2247 /* Sending intermediate configs */
2249 msg._txOn = (!p_priv->break_on);
2252 msg.txBreak = (p_priv->break_on);
2257 msg.returnStatus = 0;
2258 msg.resetDataToggle = 0x0;
2260 msg.disablePort = 0;
2263 /* Do handshaking outputs */
2265 msg.rts = p_priv->rts_state;
2268 msg.dtr = p_priv->dtr_state;
2270 p_priv->resend_cont = 0;
2272 /* if the device is a 49wg, we send control message on usb
2275 if (d_details->product_id == keyspan_usa49wg_product_id) {
2276 dr = (void *)(s_priv->ctrl_buf);
2277 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2278 dr->bRequest = 0xB0; /* 49wg control message */;
2281 dr->wLength = cpu_to_le16(sizeof(msg));
2283 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2285 usb_fill_control_urb(this_urb, serial->dev,
2286 usb_sndctrlpipe(serial->dev, 0),
2287 (unsigned char *)dr, s_priv->glocont_buf,
2288 sizeof(msg), usa49_glocont_callback, serial);
2291 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2293 /* send the data out the device on control endpoint */
2294 this_urb->transfer_buffer_length = sizeof(msg);
2296 this_urb->dev = serial->dev;
2298 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2300 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2303 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
2304 outcont_urb, this_urb->transfer_buffer_length,
2305 usb_pipeendpoint(this_urb->pipe));
2312 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2313 struct usb_serial_port *port,
2316 struct keyspan_usa90_portControlMessage msg;
2317 struct keyspan_serial_private *s_priv;
2318 struct keyspan_port_private *p_priv;
2319 const struct keyspan_device_details *d_details;
2320 struct urb *this_urb;
2324 dbg("%s", __func__);
2326 s_priv = usb_get_serial_data(serial);
2327 p_priv = usb_get_serial_port_data(port);
2328 d_details = s_priv->device_details;
2330 /* only do something if we have a bulk out endpoint */
2331 this_urb = p_priv->outcont_urb;
2332 if (this_urb == NULL) {
2333 dbg("%s - oops no urb.", __func__);
2337 /* Save reset port val for resend.
2338 Don't overwrite resend for open/close condition. */
2339 if ((reset_port + 1) > p_priv->resend_cont)
2340 p_priv->resend_cont = reset_port + 1;
2341 if (this_urb->status == -EINPROGRESS) {
2342 dbg("%s already writing", __func__);
2347 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2349 /* Only set baud rate if it's changed */
2350 if (p_priv->old_baud != p_priv->baud) {
2351 p_priv->old_baud = p_priv->baud;
2352 msg.setClocking = 0x01;
2353 if (d_details->calculate_baud_rate
2354 (p_priv->baud, d_details->baudclk, &msg.baudHi,
2355 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2356 dbg("%s - Invalid baud rate %d requested, using 9600.",
2357 __func__, p_priv->baud);
2358 p_priv->baud = 9600;
2359 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
2360 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2366 /* modes must always be correctly specified */
2367 if (p_priv->baud > 57600) {
2368 msg.rxMode = RXMODE_DMA;
2369 msg.txMode = TXMODE_DMA;
2371 msg.rxMode = RXMODE_BYHAND;
2372 msg.txMode = TXMODE_BYHAND;
2375 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2376 switch (p_priv->cflag & CSIZE) {
2378 msg.lcr |= USA_DATABITS_5;
2381 msg.lcr |= USA_DATABITS_6;
2384 msg.lcr |= USA_DATABITS_7;
2387 msg.lcr |= USA_DATABITS_8;
2390 if (p_priv->cflag & PARENB) {
2391 /* note USA_PARITY_NONE == 0 */
2392 msg.lcr |= (p_priv->cflag & PARODD)?
2393 USA_PARITY_ODD : USA_PARITY_EVEN;
2395 if (p_priv->old_cflag != p_priv->cflag) {
2396 p_priv->old_cflag = p_priv->cflag;
2400 if (p_priv->flow_control == flow_cts)
2401 msg.txFlowControl = TXFLOW_CTS;
2402 msg.setTxFlowControl = 0x01;
2403 msg.setRxFlowControl = 0x01;
2405 msg.rxForwardingLength = 16;
2406 msg.rxForwardingTimeout = 16;
2407 msg.txAckSetting = 0;
2412 if (reset_port == 1) {
2413 msg.portEnabled = 1;
2415 msg.txBreak = (p_priv->break_on);
2418 else if (reset_port == 2)
2419 msg.portEnabled = 0;
2420 /* Sending intermediate configs */
2422 msg.portEnabled = 1;
2423 msg.txBreak = (p_priv->break_on);
2426 /* Do handshaking outputs */
2428 msg.rts = p_priv->rts_state;
2431 msg.dtr = p_priv->dtr_state;
2433 p_priv->resend_cont = 0;
2434 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2436 /* send the data out the device on control endpoint */
2437 this_urb->transfer_buffer_length = sizeof(msg);
2439 this_urb->dev = serial->dev;
2440 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2442 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
2446 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2447 struct usb_serial_port *port,
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;
2457 dbg("%s", __func__);
2459 s_priv = usb_get_serial_data(serial);
2460 p_priv = usb_get_serial_port_data(port);
2461 d_details = s_priv->device_details;
2463 this_urb = s_priv->glocont_urb;
2465 /* Work out which port within the device is being setup */
2466 device_port = port->number - port->serial->minor;
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__,
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__); */
2485 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2487 msg.port = device_port;
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);
2499 msg.baudHi = 125; /* Values for 9600 baud */
2502 msg.setPrescaler = 0xff;
2505 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2506 switch (p_priv->cflag & CSIZE) {
2508 msg.lcr |= USA_DATABITS_5;
2511 msg.lcr |= USA_DATABITS_6;
2514 msg.lcr |= USA_DATABITS_7;
2517 msg.lcr |= USA_DATABITS_8;
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;
2527 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2528 msg.xonFlowControl = 0;
2529 msg.setFlowControl = 0xff;
2530 msg.forwardingLength = 16;
2534 if (reset_port == 1) {
2544 msg.returnStatus = 0;
2545 msg.resetDataToggle = 0xff;
2546 } else if (reset_port == 2) {
2556 msg.returnStatus = 0;
2557 msg.resetDataToggle = 0;
2559 /* Sending intermediate configs */
2560 msg._txOn = (!p_priv->break_on);
2563 msg.txBreak = (p_priv->break_on);
2568 msg.returnStatus = 0;
2569 msg.resetDataToggle = 0x0;
2572 /* Do handshaking outputs */
2573 msg.setTxTriState_setRts = 0xff;
2574 msg.txTriState_rts = p_priv->rts_state;
2576 msg.setHskoa_setDtr = 0xff;
2577 msg.hskoa_dtr = p_priv->dtr_state;
2579 p_priv->resend_cont = 0;
2581 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2583 /* send the data out the device on control endpoint */
2584 this_urb->transfer_buffer_length = sizeof(msg);
2585 this_urb->dev = serial->dev;
2587 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2589 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
2594 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2596 struct usb_serial *serial = port->serial;
2597 struct keyspan_serial_private *s_priv;
2598 const struct keyspan_device_details *d_details;
2600 dbg("%s", __func__);
2602 s_priv = usb_get_serial_data(serial);
2603 d_details = s_priv->device_details;
2605 switch (d_details->msg_format) {
2607 keyspan_usa26_send_setup(serial, port, reset_port);
2610 keyspan_usa28_send_setup(serial, port, reset_port);
2613 keyspan_usa49_send_setup(serial, port, reset_port);
2616 keyspan_usa90_send_setup(serial, port, reset_port);
2619 keyspan_usa67_send_setup(serial, port, reset_port);
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)
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;
2635 dbg("%s", __func__);
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))
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));
2647 /* Setup private data for serial driver */
2648 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2650 dbg("%s - kmalloc for keyspan_serial_private failed.",
2655 s_priv->device_details = d_details;
2656 usb_set_serial_data(serial, s_priv);
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),
2664 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
2667 p_priv->device_details = d_details;
2668 usb_set_serial_port_data(port, p_priv);
2671 keyspan_setup_urbs(serial);
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);
2677 dbg("%s - submit instat urb failed %d", __func__,
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);
2684 dbg("%s - submit indat urb failed %d", __func__,
2691 static void keyspan_disconnect(struct usb_serial *serial)
2694 struct usb_serial_port *port;
2695 struct keyspan_serial_private *s_priv;
2696 struct keyspan_port_private *p_priv;
2698 dbg("%s", __func__);
2700 s_priv = usb_get_serial_data(serial);
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]);
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]);
2733 static void keyspan_release(struct usb_serial *serial)
2736 struct usb_serial_port *port;
2737 struct keyspan_serial_private *s_priv;
2739 dbg("%s", __func__);
2741 s_priv = usb_get_serial_data(serial);
2743 /* dbg("Freeing serial->private."); */
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));
2754 MODULE_AUTHOR(DRIVER_AUTHOR);
2755 MODULE_DESCRIPTION(DRIVER_DESC);
2756 MODULE_LICENSE("GPL");
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");
2771 module_param(debug, bool, S_IRUGO | S_IWUSR);
2772 MODULE_PARM_DESC(debug, "Debug enabled or not");