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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 Keyspan USB to Serial Converter driver
Alan Coxdeb91682008-07-22 11:13:08 +01003
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
Alan Coxdeb91682008-07-22 11:13:08 +01006
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 See http://misc.nu/hugh/keyspan.html for more information.
Alan Coxdeb91682008-07-22 11:13:08 +010013
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 Code in this driver inspired by and in a number of places taken
15 from Brian Warner's original Keyspan-PDA driver.
16
17 This driver has been put together with the support of Innosys, Inc.
18 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
19 Thanks Guys :)
Alan Coxdeb91682008-07-22 11:13:08 +010020
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 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
Alan Coxdeb91682008-07-22 11:13:08 +010024 stuff.
25
26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 staff in their work on open source projects.
28
29 Change History
30
31 2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
32 Improve setup message handling for all devices.
33
34 Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
35 Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
36 Linux source tree. The Linux tree lacked support for the 49WLC and
37 others. The Keyspan patches didn't work with the current kernel.
38
39 2003jan30 LPM add support for the 49WLC and MPR
40
41 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
42 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
43 now supported (including QI and QW). Modified port open, port
44 close, and send setup() logic to fix various data and endpoint
45 synchronization bugs and device LED status bugs. Changed keyspan_
46 write_room() to accurately return transmit buffer availability.
47 Changed forwardingLength from 1 to 16 for all adapters.
48
49 Fri Oct 12 16:45:00 EST 2001
50 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
51
52 Wed Apr 25 12:00:00 PST 2002 (Keyspan)
53 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
54 now supported (including QI and QW). Modified port open, port
55 close, and send setup() logic to fix various data and endpoint
56 synchronization bugs and device LED status bugs. Changed keyspan_
57 write_room() to accurately return transmit buffer availability.
58 Changed forwardingLength from 1 to 16 for all adapters.
59
60 Fri Oct 12 16:45:00 EST 2001
61 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
62
63 Mon Oct 8 14:29:00 EST 2001 hugh
64 Fixed bug that prevented mulitport devices operating correctly
65 if they weren't the first unit attached.
66
67 Sat Oct 6 12:31:21 EST 2001 hugh
68 Added support for USA-28XA and -28XB, misc cleanups, break support
69 for usa26 based models thanks to David Gibson.
70
71 Thu May 31 11:56:42 PDT 2001 gkh
72 switched from using spinlock to a semaphore
Alan Coxdeb91682008-07-22 11:13:08 +010073
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 (04/08/2001) gb
75 Identify version on module load.
Alan Coxdeb91682008-07-22 11:13:08 +010076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 (11/01/2000) Adam J. Richter
78 usb_device_id table support.
Alan Coxdeb91682008-07-22 11:13:08 +010079
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 Tue Oct 10 23:15:33 EST 2000 Hugh
81 Merged Paul's changes with my USA-49W mods. Work in progress
82 still...
Alan Coxdeb91682008-07-22 11:13:08 +010083
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 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.
Alan Coxdeb91682008-07-22 11:13:08 +010087
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 Tue Jul 18 16:14:52 EST 2000 Hugh
89 Basic character input/output for USA-19 now mostly works,
90 fixed at 9600 baud for the moment.
91
92 Sat Jul 8 11:11:48 EST 2000 Hugh
93 First public release - nothing works except the firmware upload.
94 Tested on PPC and x86 architectures, seems to behave...
95*/
96
97
Linus Torvalds1da177e2005-04-16 15:20:36 -070098#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>
David Woodhouse2971c572008-05-30 14:04:03 +0300108#include <linux/firmware.h>
109#include <linux/ihex.h>
Alan Coxdeb91682008-07-22 11:13:08 +0100110#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111#include <linux/usb.h>
Greg Kroah-Hartmana9698882006-07-11 21:22:58 -0700112#include <linux/usb/serial.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113#include "keyspan.h"
114
115static int debug;
116
117/*
118 * Version Information
119 */
Lucy McCoy0ca12682007-05-18 12:10:41 -0700120#define DRIVER_VERSION "v1.1.5"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
122#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
123
124#define INSTAT_BUFLEN 32
125#define GLOCONT_BUFLEN 64
Lucy McCoy0ca12682007-05-18 12:10:41 -0700126#define INDAT49W_BUFLEN 512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127
128 /* Per device and per port private data */
129struct keyspan_serial_private {
130 const struct keyspan_device_details *device_details;
131
132 struct urb *instat_urb;
133 char instat_buf[INSTAT_BUFLEN];
134
Alan Coxdeb91682008-07-22 11:13:08 +0100135 /* added to support 49wg, where data from all 4 ports comes in
136 on 1 EP and high-speed supported */
Lucy McCoy0ca12682007-05-18 12:10:41 -0700137 struct urb *indat_urb;
138 char indat_buf[INDAT49W_BUFLEN];
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 /* XXX this one probably will need a lock */
141 struct urb *glocont_urb;
142 char glocont_buf[GLOCONT_BUFLEN];
Alan Coxdeb91682008-07-22 11:13:08 +0100143 char ctrl_buf[8]; /* for EP0 control message */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144};
145
146struct keyspan_port_private {
147 /* Keep track of which input & output endpoints to use */
148 int in_flip;
149 int out_flip;
150
151 /* Keep duplicate of device details in each port
152 structure as well - simplifies some of the
153 callback functions etc. */
154 const struct keyspan_device_details *device_details;
155
156 /* Input endpoints and buffer for this port */
157 struct urb *in_urbs[2];
158 char in_buffer[2][64];
159 /* Output endpoints and buffer for this port */
160 struct urb *out_urbs[2];
161 char out_buffer[2][64];
162
163 /* Input ack endpoint */
164 struct urb *inack_urb;
165 char inack_buffer[1];
166
167 /* Output control endpoint */
168 struct urb *outcont_urb;
169 char outcont_buffer[64];
170
171 /* Settings for the port */
172 int baud;
173 int old_baud;
174 unsigned int cflag;
175 unsigned int old_cflag;
176 enum {flow_none, flow_cts, flow_xon} flow_control;
177 int rts_state; /* Handshaking pins (outputs) */
178 int dtr_state;
179 int cts_state; /* Handshaking pins (inputs) */
180 int dsr_state;
181 int dcd_state;
182 int ri_state;
183 int break_on;
184
185 unsigned long tx_start_time[2];
186 int resend_cont; /* need to resend control packet */
187};
188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189/* Include Keyspan message headers. All current Keyspan Adapters
Lucy McCoy0ca12682007-05-18 12:10:41 -0700190 make use of one of five message formats which are referred
Alan Coxdeb91682008-07-22 11:13:08 +0100191 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and
192 within this driver. */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193#include "keyspan_usa26msg.h"
194#include "keyspan_usa28msg.h"
195#include "keyspan_usa49msg.h"
196#include "keyspan_usa90msg.h"
Lucy McCoy0ca12682007-05-18 12:10:41 -0700197#include "keyspan_usa67msg.h"
Alan Coxdeb91682008-07-22 11:13:08 +0100198
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200/* Functions used by new usb-serial code. */
Alan Coxdeb91682008-07-22 11:13:08 +0100201static int __init keyspan_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202{
203 int retval;
204 retval = usb_serial_register(&keyspan_pre_device);
205 if (retval)
206 goto failed_pre_device_register;
207 retval = usb_serial_register(&keyspan_1port_device);
208 if (retval)
209 goto failed_1port_device_register;
210 retval = usb_serial_register(&keyspan_2port_device);
211 if (retval)
212 goto failed_2port_device_register;
213 retval = usb_serial_register(&keyspan_4port_device);
214 if (retval)
215 goto failed_4port_device_register;
216 retval = usb_register(&keyspan_driver);
Alan Coxdeb91682008-07-22 11:13:08 +0100217 if (retval)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 goto failed_usb_register;
219
Greg Kroah-Hartmanc197a8d2008-08-18 13:21:04 -0700220 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
221 DRIVER_DESC "\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222
223 return 0;
224failed_usb_register:
225 usb_serial_deregister(&keyspan_4port_device);
226failed_4port_device_register:
227 usb_serial_deregister(&keyspan_2port_device);
228failed_2port_device_register:
229 usb_serial_deregister(&keyspan_1port_device);
230failed_1port_device_register:
231 usb_serial_deregister(&keyspan_pre_device);
232failed_pre_device_register:
233 return retval;
234}
235
Alan Coxdeb91682008-07-22 11:13:08 +0100236static void __exit keyspan_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237{
Alan Coxdeb91682008-07-22 11:13:08 +0100238 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243}
244
245module_init(keyspan_init);
246module_exit(keyspan_exit);
247
Alan Cox95da3102008-07-22 11:09:07 +0100248static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249{
Alan Cox95da3102008-07-22 11:09:07 +0100250 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 struct keyspan_port_private *p_priv;
252
Alan Coxdeb91682008-07-22 11:13:08 +0100253 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
255 p_priv = usb_get_serial_port_data(port);
256
257 if (break_state == -1)
258 p_priv->break_on = 1;
259 else
260 p_priv->break_on = 0;
261
262 keyspan_send_setup(port, 0);
263}
264
265
Alan Coxdeb91682008-07-22 11:13:08 +0100266static void keyspan_set_termios(struct tty_struct *tty,
Alan Cox95da3102008-07-22 11:09:07 +0100267 struct usb_serial_port *port, struct ktermios *old_termios)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268{
269 int baud_rate, device_port;
270 struct keyspan_port_private *p_priv;
271 const struct keyspan_device_details *d_details;
272 unsigned int cflag;
273
Harvey Harrison441b62c2008-03-03 16:08:34 -0800274 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
276 p_priv = usb_get_serial_port_data(port);
277 d_details = p_priv->device_details;
Alan Cox74240b02007-10-18 01:24:20 -0700278 cflag = tty->termios->c_cflag;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 device_port = port->number - port->serial->minor;
280
281 /* Baud rate calculation takes baud rate as an integer
282 so other rates can be generated if desired. */
Alan Cox74240b02007-10-18 01:24:20 -0700283 baud_rate = tty_get_baud_rate(tty);
Alan Coxdeb91682008-07-22 11:13:08 +0100284 /* If no match or invalid, don't change */
Alan Cox74240b02007-10-18 01:24:20 -0700285 if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
287 /* FIXME - more to do here to ensure rate changes cleanly */
Alan Cox74240b02007-10-18 01:24:20 -0700288 /* FIXME - calcuate exact rate from divisor ? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 p_priv->baud = baud_rate;
Alan Cox74240b02007-10-18 01:24:20 -0700290 } else
291 baud_rate = tty_termios_baud_rate(old_termios);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
Alan Cox74240b02007-10-18 01:24:20 -0700293 tty_encode_baud_rate(tty, baud_rate, baud_rate);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 /* set CTS/RTS handshake etc. */
295 p_priv->cflag = cflag;
296 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
297
Alan Cox74240b02007-10-18 01:24:20 -0700298 /* Mark/Space not supported */
299 tty->termios->c_cflag &= ~CMSPAR;
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 keyspan_send_setup(port, 0);
302}
303
Alan Cox95da3102008-07-22 11:09:07 +0100304static int keyspan_tiocmget(struct tty_struct *tty, struct file *file)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305{
Alan Cox95da3102008-07-22 11:09:07 +0100306 struct usb_serial_port *port = tty->driver_data;
307 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 unsigned int value;
Alan Coxdeb91682008-07-22 11:13:08 +0100309
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 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) |
Alan Coxdeb91682008-07-22 11:13:08 +0100315 ((p_priv->ri_state) ? TIOCM_RNG : 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
317 return value;
318}
319
Alan Cox95da3102008-07-22 11:09:07 +0100320static int keyspan_tiocmset(struct tty_struct *tty, struct file *file,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 unsigned int set, unsigned int clear)
322{
Alan Cox95da3102008-07-22 11:09:07 +0100323 struct usb_serial_port *port = tty->driver_data;
324 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +0100325
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 if (set & TIOCM_RTS)
327 p_priv->rts_state = 1;
328 if (set & TIOCM_DTR)
329 p_priv->dtr_state = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 if (clear & TIOCM_RTS)
331 p_priv->rts_state = 0;
332 if (clear & TIOCM_DTR)
333 p_priv->dtr_state = 0;
334 keyspan_send_setup(port, 0);
335 return 0;
336}
337
Alan Cox95da3102008-07-22 11:09:07 +0100338/* Write function is similar for the four protocols used
339 with only a minor change for usa90 (usa19hs) required */
340static int keyspan_write(struct tty_struct *tty,
341 struct usb_serial_port *port, const unsigned char *buf, int count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342{
343 struct keyspan_port_private *p_priv;
344 const struct keyspan_device_details *d_details;
345 int flip;
346 int left, todo;
347 struct urb *this_urb;
Alan Coxdeb91682008-07-22 11:13:08 +0100348 int err, maxDataLen, dataOffset;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349
350 p_priv = usb_get_serial_port_data(port);
351 d_details = p_priv->device_details;
352
353 if (d_details->msg_format == msg_usa90) {
Alan Coxdeb91682008-07-22 11:13:08 +0100354 maxDataLen = 64;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 dataOffset = 0;
356 } else {
357 maxDataLen = 63;
358 dataOffset = 1;
359 }
Alan Coxdeb91682008-07-22 11:13:08 +0100360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 dbg("%s - for port %d (%d chars), flip=%d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800362 __func__, port->number, count, p_priv->out_flip);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363
364 for (left = count; left > 0; left -= todo) {
365 todo = left;
366 if (todo > maxDataLen)
367 todo = maxDataLen;
368
369 flip = p_priv->out_flip;
Alan Coxdeb91682008-07-22 11:13:08 +0100370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 /* Check we have a valid urb/endpoint before we use it... */
Alan Coxdeb91682008-07-22 11:13:08 +0100372 this_urb = p_priv->out_urbs[flip];
373 if (this_urb == NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 /* no bulk out, so return 0 bytes written */
Harvey Harrison441b62c2008-03-03 16:08:34 -0800375 dbg("%s - no output urb :(", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 return count;
377 }
378
Alan Coxdeb91682008-07-22 11:13:08 +0100379 dbg("%s - endpoint %d flip %d",
380 __func__, usb_pipeendpoint(this_urb->pipe), flip);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
382 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +0100383 if (time_before(jiffies,
384 p_priv->tx_start_time[flip] + 10 * HZ))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 usb_unlink_urb(this_urb);
387 break;
388 }
389
Alan Coxdeb91682008-07-22 11:13:08 +0100390 /* First byte in buffer is "last flag" (except for usa19hx)
391 - unused so for now so set to zero */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 ((char *)this_urb->transfer_buffer)[0] = 0;
393
Alan Coxdeb91682008-07-22 11:13:08 +0100394 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 buf += todo;
396
397 /* send the data out the bulk port */
398 this_urb->transfer_buffer_length = todo + dataOffset;
399
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 this_urb->dev = port->serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100401 err = usb_submit_urb(this_urb, GFP_ATOMIC);
402 if (err != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 dbg("usb_submit_urb(write bulk) failed (%d)", err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 p_priv->tx_start_time[flip] = jiffies;
405
406 /* Flip for next time if usa26 or usa28 interface
407 (not used on usa49) */
408 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
409 }
410
411 return count - left;
412}
413
David Howells7d12e782006-10-05 14:55:46 +0100414static void usa26_indat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415{
416 int i, err;
417 int endpoint;
418 struct usb_serial_port *port;
419 struct tty_struct *tty;
420 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700421 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422
Alan Coxdeb91682008-07-22 11:13:08 +0100423 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
425 endpoint = usb_pipeendpoint(urb->pipe);
426
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700427 if (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428 dbg("%s - nonzero status: %x on endpoint %d.",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800429 __func__, status, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 return;
431 }
432
Ming Leicdc97792008-02-24 18:41:47 +0800433 port = urb->context;
Alan Cox4a90f092008-10-13 10:39:46 +0100434 tty = tty_port_tty_get(&port->port);
Alan Coxa5569a52008-01-21 17:18:24 -0800435 if (tty && urb->actual_length) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 /* 0x80 bit is error flag */
437 if ((data[0] & 0x80) == 0) {
Alan Coxdeb91682008-07-22 11:13:08 +0100438 /* no errors on individual bytes, only
439 possible overrun err */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 if (data[0] & RXERROR_OVERRUN)
Alan Coxdeb91682008-07-22 11:13:08 +0100441 err = TTY_OVERRUN;
442 else
443 err = 0;
444 for (i = 1; i < urb->actual_length ; ++i)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 tty_insert_flip_char(tty, data[i], err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 } else {
447 /* some bytes had errors, every byte has status */
Harvey Harrison441b62c2008-03-03 16:08:34 -0800448 dbg("%s - RX error!!!!", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 for (i = 0; i + 1 < urb->actual_length; i += 2) {
450 int stat = data[i], flag = 0;
451 if (stat & RXERROR_OVERRUN)
452 flag |= TTY_OVERRUN;
453 if (stat & RXERROR_FRAMING)
454 flag |= TTY_FRAME;
455 if (stat & RXERROR_PARITY)
456 flag |= TTY_PARITY;
457 /* XXX should handle break (0x10) */
458 tty_insert_flip_char(tty, data[i+1], flag);
459 }
460 }
461 tty_flip_buffer_push(tty);
462 }
Alan Cox4a90f092008-10-13 10:39:46 +0100463 tty_kref_put(tty);
Alan Coxdeb91682008-07-22 11:13:08 +0100464
465 /* Resubmit urb so we continue receiving */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 urb->dev = port->serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100467 if (port->port.count) {
468 err = usb_submit_urb(urb, GFP_ATOMIC);
469 if (err != 0)
470 dbg("%s - resubmit read urb failed. (%d)",
471 __func__, err);
472 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 return;
474}
475
Alan Coxdeb91682008-07-22 11:13:08 +0100476/* Outdat handling is common for all devices */
David Howells7d12e782006-10-05 14:55:46 +0100477static void usa2x_outdat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478{
479 struct usb_serial_port *port;
480 struct keyspan_port_private *p_priv;
481
Ming Leicdc97792008-02-24 18:41:47 +0800482 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +0100484 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485
Alan Cox95da3102008-07-22 11:09:07 +0100486 if (port->port.count)
Pete Zaitcevcf2c7482006-05-22 21:58:49 -0700487 usb_serial_port_softint(port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488}
489
David Howells7d12e782006-10-05 14:55:46 +0100490static void usa26_inack_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491{
Alan Coxdeb91682008-07-22 11:13:08 +0100492 dbg("%s", __func__);
493
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494}
495
David Howells7d12e782006-10-05 14:55:46 +0100496static void usa26_outcont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497{
498 struct usb_serial_port *port;
499 struct keyspan_port_private *p_priv;
500
Ming Leicdc97792008-02-24 18:41:47 +0800501 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 p_priv = usb_get_serial_port_data(port);
503
504 if (p_priv->resend_cont) {
Alan Coxdeb91682008-07-22 11:13:08 +0100505 dbg("%s - sending setup", __func__);
506 keyspan_usa26_send_setup(port->serial, port,
507 p_priv->resend_cont - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 }
509}
510
David Howells7d12e782006-10-05 14:55:46 +0100511static void usa26_instat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512{
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;
Alan Cox4a90f092008-10-13 10:39:46 +0100518 struct tty_struct *tty;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 int old_dcd_state, err;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700520 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Ming Leicdc97792008-02-24 18:41:47 +0800522 serial = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700524 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800525 dbg("%s - nonzero status: %x", __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 return;
527 }
528 if (urb->actual_length != 9) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800529 dbg("%s - %d byte report??", __func__, urb->actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 goto exit;
531 }
532
533 msg = (struct keyspan_usa26_portStatusMessage *)data;
534
535#if 0
536 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800537 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538 msg->_txXoff, msg->rxEnabled, msg->controlResponse);
539#endif
540
541 /* Now do something useful with the data */
542
543
Alan Coxdeb91682008-07-22 11:13:08 +0100544 /* Check port number from message and retrieve private data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 if (msg->port >= serial->num_ports) {
Alan Coxdeb91682008-07-22 11:13:08 +0100546 dbg("%s - Unexpected port number %d", __func__, msg->port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547 goto exit;
548 }
549 port = serial->port[msg->port];
550 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +0100551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 /* Update handshaking pin state information */
553 old_dcd_state = p_priv->dcd_state;
554 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
555 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
556 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
557 p_priv->ri_state = ((msg->ri) ? 1 : 0);
558
Alan Cox4a90f092008-10-13 10:39:46 +0100559 if (old_dcd_state != p_priv->dcd_state) {
560 tty = tty_port_tty_get(&port->port);
561 if (tty && !C_CLOCAL(tty))
562 tty_hangup(tty);
563 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 }
Alan Coxdeb91682008-07-22 11:13:08 +0100565
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 /* Resubmit urb so we continue receiving */
567 urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100568 err = usb_submit_urb(urb, GFP_ATOMIC);
569 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -0800570 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571exit: ;
572}
573
David Howells7d12e782006-10-05 14:55:46 +0100574static void usa26_glocont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575{
Alan Coxdeb91682008-07-22 11:13:08 +0100576 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577}
578
579
David Howells7d12e782006-10-05 14:55:46 +0100580static void usa28_indat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581{
Alan Coxf035a8a2008-07-22 11:13:32 +0100582 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583 struct usb_serial_port *port;
584 struct tty_struct *tty;
585 unsigned char *data;
586 struct keyspan_port_private *p_priv;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700587 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588
Alan Coxdeb91682008-07-22 11:13:08 +0100589 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590
Ming Leicdc97792008-02-24 18:41:47 +0800591 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 p_priv = usb_get_serial_port_data(port);
593 data = urb->transfer_buffer;
594
595 if (urb != p_priv->in_urbs[p_priv->in_flip])
596 return;
597
598 do {
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700599 if (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 dbg("%s - nonzero status: %x on endpoint %d.",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800601 __func__, status, usb_pipeendpoint(urb->pipe));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 return;
603 }
604
Ming Leicdc97792008-02-24 18:41:47 +0800605 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606 p_priv = usb_get_serial_port_data(port);
607 data = urb->transfer_buffer;
608
Alan Cox4a90f092008-10-13 10:39:46 +0100609 tty =tty_port_tty_get(&port->port);
610 if (tty && urb->actual_length) {
Alan Coxf035a8a2008-07-22 11:13:32 +0100611 tty_insert_flip_string(tty, data, urb->actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612 tty_flip_buffer_push(tty);
613 }
Alan Cox4a90f092008-10-13 10:39:46 +0100614 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
616 /* Resubmit urb so we continue receiving */
617 urb->dev = port->serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100618 if (port->port.count) {
619 err = usb_submit_urb(urb, GFP_ATOMIC);
620 if (err != 0)
621 dbg("%s - resubmit read urb failed. (%d)",
622 __func__, err);
623 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624 p_priv->in_flip ^= 1;
625
626 urb = p_priv->in_urbs[p_priv->in_flip];
627 } while (urb->status != -EINPROGRESS);
628}
629
David Howells7d12e782006-10-05 14:55:46 +0100630static void usa28_inack_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631{
Alan Coxdeb91682008-07-22 11:13:08 +0100632 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633}
634
David Howells7d12e782006-10-05 14:55:46 +0100635static void usa28_outcont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636{
637 struct usb_serial_port *port;
638 struct keyspan_port_private *p_priv;
639
Ming Leicdc97792008-02-24 18:41:47 +0800640 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 p_priv = usb_get_serial_port_data(port);
642
643 if (p_priv->resend_cont) {
Alan Coxdeb91682008-07-22 11:13:08 +0100644 dbg("%s - sending setup", __func__);
645 keyspan_usa28_send_setup(port->serial, port,
646 p_priv->resend_cont - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 }
648}
649
David Howells7d12e782006-10-05 14:55:46 +0100650static void usa28_instat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651{
652 int err;
653 unsigned char *data = urb->transfer_buffer;
654 struct keyspan_usa28_portStatusMessage *msg;
655 struct usb_serial *serial;
656 struct usb_serial_port *port;
657 struct keyspan_port_private *p_priv;
Alan Cox4a90f092008-10-13 10:39:46 +0100658 struct tty_struct *tty;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659 int old_dcd_state;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700660 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661
Ming Leicdc97792008-02-24 18:41:47 +0800662 serial = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700664 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800665 dbg("%s - nonzero status: %x", __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 return;
667 }
668
669 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800670 dbg("%s - bad length %d", __func__, urb->actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 goto exit;
672 }
673
Harvey Harrison441b62c2008-03-03 16:08:34 -0800674 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 data[0], data[1], data[2], data[3], data[4], data[5],
676 data[6], data[7], data[8], data[9], data[10], data[11]);*/
Alan Coxdeb91682008-07-22 11:13:08 +0100677
678 /* Now do something useful with the data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 msg = (struct keyspan_usa28_portStatusMessage *)data;
680
Alan Coxdeb91682008-07-22 11:13:08 +0100681 /* Check port number from message and retrieve private data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 if (msg->port >= serial->num_ports) {
Alan Coxdeb91682008-07-22 11:13:08 +0100683 dbg("%s - Unexpected port number %d", __func__, msg->port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 goto exit;
685 }
686 port = serial->port[msg->port];
687 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +0100688
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 /* Update handshaking pin state information */
690 old_dcd_state = p_priv->dcd_state;
691 p_priv->cts_state = ((msg->cts) ? 1 : 0);
692 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
693 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
694 p_priv->ri_state = ((msg->ri) ? 1 : 0);
695
Alan Cox4a90f092008-10-13 10:39:46 +0100696 if( old_dcd_state != p_priv->dcd_state && old_dcd_state) {
697 tty = tty_port_tty_get(&port->port);
698 if (tty && !C_CLOCAL(tty))
699 tty_hangup(tty);
700 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 }
702
703 /* Resubmit urb so we continue receiving */
704 urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100705 err = usb_submit_urb(urb, GFP_ATOMIC);
706 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -0800707 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708exit: ;
709}
710
David Howells7d12e782006-10-05 14:55:46 +0100711static void usa28_glocont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712{
Alan Coxdeb91682008-07-22 11:13:08 +0100713 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714}
715
716
David Howells7d12e782006-10-05 14:55:46 +0100717static void usa49_glocont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718{
719 struct usb_serial *serial;
720 struct usb_serial_port *port;
721 struct keyspan_port_private *p_priv;
722 int i;
723
Alan Coxdeb91682008-07-22 11:13:08 +0100724 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
Ming Leicdc97792008-02-24 18:41:47 +0800726 serial = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 for (i = 0; i < serial->num_ports; ++i) {
728 port = serial->port[i];
729 p_priv = usb_get_serial_port_data(port);
730
731 if (p_priv->resend_cont) {
Alan Coxdeb91682008-07-22 11:13:08 +0100732 dbg("%s - sending setup", __func__);
733 keyspan_usa49_send_setup(serial, port,
734 p_priv->resend_cont - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 break;
736 }
737 }
738}
739
740 /* This is actually called glostat in the Keyspan
741 doco */
David Howells7d12e782006-10-05 14:55:46 +0100742static void usa49_instat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743{
744 int err;
745 unsigned char *data = urb->transfer_buffer;
746 struct keyspan_usa49_portStatusMessage *msg;
747 struct usb_serial *serial;
748 struct usb_serial_port *port;
749 struct keyspan_port_private *p_priv;
750 int old_dcd_state;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700751 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752
Alan Coxdeb91682008-07-22 11:13:08 +0100753 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
Ming Leicdc97792008-02-24 18:41:47 +0800755 serial = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700757 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800758 dbg("%s - nonzero status: %x", __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759 return;
760 }
761
Alan Coxdeb91682008-07-22 11:13:08 +0100762 if (urb->actual_length !=
763 sizeof(struct keyspan_usa49_portStatusMessage)) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800764 dbg("%s - bad length %d", __func__, urb->actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 goto exit;
766 }
767
Harvey Harrison441b62c2008-03-03 16:08:34 -0800768 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769 data[0], data[1], data[2], data[3], data[4], data[5],
770 data[6], data[7], data[8], data[9], data[10]);*/
Alan Coxdeb91682008-07-22 11:13:08 +0100771
772 /* Now do something useful with the data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 msg = (struct keyspan_usa49_portStatusMessage *)data;
774
Alan Coxdeb91682008-07-22 11:13:08 +0100775 /* Check port number from message and retrieve private data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 if (msg->portNumber >= serial->num_ports) {
Alan Coxdeb91682008-07-22 11:13:08 +0100777 dbg("%s - Unexpected port number %d",
778 __func__, msg->portNumber);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779 goto exit;
780 }
781 port = serial->port[msg->portNumber];
782 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +0100783
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784 /* Update handshaking pin state information */
785 old_dcd_state = p_priv->dcd_state;
786 p_priv->cts_state = ((msg->cts) ? 1 : 0);
787 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
788 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
789 p_priv->ri_state = ((msg->ri) ? 1 : 0);
790
Alan Cox4a90f092008-10-13 10:39:46 +0100791 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
792 struct tty_struct *tty = tty_port_tty_get(&port->port);
793 if (tty && !C_CLOCAL(tty))
794 tty_hangup(tty);
795 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796 }
797
Alan Coxdeb91682008-07-22 11:13:08 +0100798 /* Resubmit urb so we continue receiving */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799 urb->dev = serial->dev;
800
Alan Coxdeb91682008-07-22 11:13:08 +0100801 err = usb_submit_urb(urb, GFP_ATOMIC);
802 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -0800803 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804exit: ;
805}
806
David Howells7d12e782006-10-05 14:55:46 +0100807static void usa49_inack_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808{
Alan Coxdeb91682008-07-22 11:13:08 +0100809 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700810}
811
David Howells7d12e782006-10-05 14:55:46 +0100812static void usa49_indat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813{
814 int i, err;
815 int endpoint;
816 struct usb_serial_port *port;
817 struct tty_struct *tty;
818 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700819 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820
Alan Coxdeb91682008-07-22 11:13:08 +0100821 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
823 endpoint = usb_pipeendpoint(urb->pipe);
824
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700825 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800826 dbg("%s - nonzero status: %x on endpoint %d.", __func__,
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700827 status, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828 return;
829 }
830
Ming Leicdc97792008-02-24 18:41:47 +0800831 port = urb->context;
Alan Cox4a90f092008-10-13 10:39:46 +0100832 tty = tty_port_tty_get(&port->port);
Alan Cox3004e532008-01-03 16:59:04 +0000833 if (tty && urb->actual_length) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834 /* 0x80 bit is error flag */
835 if ((data[0] & 0x80) == 0) {
836 /* no error on any byte */
Alan Coxf035a8a2008-07-22 11:13:32 +0100837 tty_insert_flip_string(tty, data + 1,
838 urb->actual_length - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 } else {
840 /* some bytes had errors, every byte has status */
841 for (i = 0; i + 1 < urb->actual_length; i += 2) {
842 int stat = data[i], flag = 0;
843 if (stat & RXERROR_OVERRUN)
844 flag |= TTY_OVERRUN;
845 if (stat & RXERROR_FRAMING)
846 flag |= TTY_FRAME;
847 if (stat & RXERROR_PARITY)
848 flag |= TTY_PARITY;
849 /* XXX should handle break (0x10) */
850 tty_insert_flip_char(tty, data[i+1], flag);
851 }
852 }
853 tty_flip_buffer_push(tty);
854 }
Alan Cox4a90f092008-10-13 10:39:46 +0100855 tty_kref_put(tty);
Alan Coxdeb91682008-07-22 11:13:08 +0100856
857 /* Resubmit urb so we continue receiving */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 urb->dev = port->serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +0100859 if (port->port.count) {
860 err = usb_submit_urb(urb, GFP_ATOMIC);
861 if (err != 0)
862 dbg("%s - resubmit read urb failed. (%d)",
863 __func__, err);
864 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700865}
866
Lucy McCoy0ca12682007-05-18 12:10:41 -0700867static void usa49wg_indat_callback(struct urb *urb)
868{
869 int i, len, x, err;
870 struct usb_serial *serial;
871 struct usb_serial_port *port;
872 struct tty_struct *tty;
873 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700874 int status = urb->status;
Lucy McCoy0ca12682007-05-18 12:10:41 -0700875
Alan Coxdeb91682008-07-22 11:13:08 +0100876 dbg("%s", __func__);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700877
878 serial = urb->context;
879
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700880 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -0800881 dbg("%s - nonzero status: %x", __func__, status);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700882 return;
883 }
884
885 /* inbound data is in the form P#, len, status, data */
886 i = 0;
887 len = 0;
888
889 if (urb->actual_length) {
890 while (i < urb->actual_length) {
891
892 /* Check port number from message*/
893 if (data[i] >= serial->num_ports) {
Alan Coxdeb91682008-07-22 11:13:08 +0100894 dbg("%s - Unexpected port number %d",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800895 __func__, data[i]);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700896 return;
897 }
898 port = serial->port[data[i++]];
Alan Cox4a90f092008-10-13 10:39:46 +0100899 tty = tty_port_tty_get(&port->port);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700900 len = data[i++];
901
902 /* 0x80 bit is error flag */
903 if ((data[i] & 0x80) == 0) {
904 /* no error on any byte */
905 i++;
906 for (x = 1; x < len ; ++x)
Alan Cox95da3102008-07-22 11:09:07 +0100907 if (port->port.count)
Lucy McCoy0ca12682007-05-18 12:10:41 -0700908 tty_insert_flip_char(tty,
909 data[i++], 0);
910 else
911 i++;
912 } else {
913 /*
914 * some bytes had errors, every byte has status
915 */
916 for (x = 0; x + 1 < len; x += 2) {
917 int stat = data[i], flag = 0;
918 if (stat & RXERROR_OVERRUN)
919 flag |= TTY_OVERRUN;
920 if (stat & RXERROR_FRAMING)
921 flag |= TTY_FRAME;
922 if (stat & RXERROR_PARITY)
923 flag |= TTY_PARITY;
924 /* XXX should handle break (0x10) */
Alan Cox95da3102008-07-22 11:09:07 +0100925 if (port->port.count)
Lucy McCoy0ca12682007-05-18 12:10:41 -0700926 tty_insert_flip_char(tty,
927 data[i+1], flag);
928 i += 2;
929 }
930 }
Alan Cox95da3102008-07-22 11:09:07 +0100931 if (port->port.count)
Lucy McCoy0ca12682007-05-18 12:10:41 -0700932 tty_flip_buffer_push(tty);
Alan Cox4a90f092008-10-13 10:39:46 +0100933 tty_kref_put(tty);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700934 }
935 }
936
937 /* Resubmit urb so we continue receiving */
938 urb->dev = serial->dev;
939
940 err = usb_submit_urb(urb, GFP_ATOMIC);
941 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -0800942 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Lucy McCoy0ca12682007-05-18 12:10:41 -0700943}
944
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945/* not used, usa-49 doesn't have per-port control endpoints */
Lucy McCoy0ca12682007-05-18 12:10:41 -0700946static void usa49_outcont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947{
Alan Coxdeb91682008-07-22 11:13:08 +0100948 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949}
950
Lucy McCoy0ca12682007-05-18 12:10:41 -0700951static void usa90_indat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952{
953 int i, err;
954 int endpoint;
955 struct usb_serial_port *port;
956 struct keyspan_port_private *p_priv;
957 struct tty_struct *tty;
958 unsigned char *data = urb->transfer_buffer;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700959 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Alan Coxdeb91682008-07-22 11:13:08 +0100961 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
963 endpoint = usb_pipeendpoint(urb->pipe);
964
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -0700965 if (status) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 dbg("%s - nonzero status: %x on endpoint %d.",
Harvey Harrison441b62c2008-03-03 16:08:34 -0800967 __func__, status, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968 return;
969 }
970
Ming Leicdc97792008-02-24 18:41:47 +0800971 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972 p_priv = usb_get_serial_port_data(port);
973
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 if (urb->actual_length) {
Alan Cox4a90f092008-10-13 10:39:46 +0100975 tty = tty_port_tty_get(&port->port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 /* if current mode is DMA, looks like usa28 format
Alan Coxdeb91682008-07-22 11:13:08 +0100977 otherwise looks like usa26 data format */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978
Alan Coxf035a8a2008-07-22 11:13:32 +0100979 if (p_priv->baud > 57600)
980 tty_insert_flip_string(tty, data, urb->actual_length);
981 else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 /* 0x80 bit is error flag */
983 if ((data[0] & 0x80) == 0) {
Alan Coxdeb91682008-07-22 11:13:08 +0100984 /* no errors on individual bytes, only
985 possible overrun err*/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 if (data[0] & RXERROR_OVERRUN)
Alan Coxdeb91682008-07-22 11:13:08 +0100987 err = TTY_OVERRUN;
988 else
989 err = 0;
990 for (i = 1; i < urb->actual_length ; ++i)
991 tty_insert_flip_char(tty, data[i],
992 err);
993 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 /* some bytes had errors, every byte has status */
Harvey Harrison441b62c2008-03-03 16:08:34 -0800995 dbg("%s - RX error!!!!", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 for (i = 0; i + 1 < urb->actual_length; i += 2) {
997 int stat = data[i], flag = 0;
998 if (stat & RXERROR_OVERRUN)
999 flag |= TTY_OVERRUN;
1000 if (stat & RXERROR_FRAMING)
1001 flag |= TTY_FRAME;
1002 if (stat & RXERROR_PARITY)
1003 flag |= TTY_PARITY;
1004 /* XXX should handle break (0x10) */
Alan Coxdeb91682008-07-22 11:13:08 +01001005 tty_insert_flip_char(tty, data[i+1],
1006 flag);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 }
1008 }
1009 }
1010 tty_flip_buffer_push(tty);
Alan Cox4a90f092008-10-13 10:39:46 +01001011 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012 }
Alan Coxdeb91682008-07-22 11:13:08 +01001013
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014 /* Resubmit urb so we continue receiving */
1015 urb->dev = port->serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01001016 if (port->port.count) {
1017 err = usb_submit_urb(urb, GFP_ATOMIC);
1018 if (err != 0)
1019 dbg("%s - resubmit read urb failed. (%d)",
1020 __func__, err);
1021 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001022 return;
1023}
1024
1025
David Howells7d12e782006-10-05 14:55:46 +01001026static void usa90_instat_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027{
1028 unsigned char *data = urb->transfer_buffer;
1029 struct keyspan_usa90_portStatusMessage *msg;
1030 struct usb_serial *serial;
1031 struct usb_serial_port *port;
1032 struct keyspan_port_private *p_priv;
Alan Cox4a90f092008-10-13 10:39:46 +01001033 struct tty_struct *tty;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 int old_dcd_state, err;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -07001035 int status = urb->status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036
Ming Leicdc97792008-02-24 18:41:47 +08001037 serial = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -07001039 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001040 dbg("%s - nonzero status: %x", __func__, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 return;
1042 }
1043 if (urb->actual_length < 14) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001044 dbg("%s - %d byte report??", __func__, urb->actual_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001045 goto exit;
1046 }
1047
1048 msg = (struct keyspan_usa90_portStatusMessage *)data;
1049
1050 /* Now do something useful with the data */
1051
1052 port = serial->port[0];
1053 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +01001054
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 /* Update handshaking pin state information */
1056 old_dcd_state = p_priv->dcd_state;
1057 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1058 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1059 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1060 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1061
Alan Cox4a90f092008-10-13 10:39:46 +01001062 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1063 tty = tty_port_tty_get(&port->port);
1064 if (tty && !C_CLOCAL(tty))
1065 tty_hangup(tty);
1066 tty_kref_put(tty);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 }
Alan Coxdeb91682008-07-22 11:13:08 +01001068
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 /* Resubmit urb so we continue receiving */
1070 urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01001071 err = usb_submit_urb(urb, GFP_ATOMIC);
1072 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08001073 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074exit:
1075 ;
1076}
1077
David Howells7d12e782006-10-05 14:55:46 +01001078static void usa90_outcont_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079{
1080 struct usb_serial_port *port;
1081 struct keyspan_port_private *p_priv;
1082
Ming Leicdc97792008-02-24 18:41:47 +08001083 port = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001084 p_priv = usb_get_serial_port_data(port);
1085
1086 if (p_priv->resend_cont) {
Alan Coxdeb91682008-07-22 11:13:08 +01001087 dbg("%s - sending setup", __func__);
1088 keyspan_usa90_send_setup(port->serial, port,
1089 p_priv->resend_cont - 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 }
1091}
1092
Lucy McCoy0ca12682007-05-18 12:10:41 -07001093/* Status messages from the 28xg */
1094static void usa67_instat_callback(struct urb *urb)
1095{
1096 int err;
1097 unsigned char *data = urb->transfer_buffer;
1098 struct keyspan_usa67_portStatusMessage *msg;
1099 struct usb_serial *serial;
1100 struct usb_serial_port *port;
1101 struct keyspan_port_private *p_priv;
1102 int old_dcd_state;
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -07001103 int status = urb->status;
Lucy McCoy0ca12682007-05-18 12:10:41 -07001104
Alan Coxdeb91682008-07-22 11:13:08 +01001105 dbg("%s", __func__);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001106
1107 serial = urb->context;
1108
Greg Kroah-Hartman95b93452007-06-15 15:44:13 -07001109 if (status) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001110 dbg("%s - nonzero status: %x", __func__, status);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001111 return;
1112 }
1113
Alan Coxdeb91682008-07-22 11:13:08 +01001114 if (urb->actual_length !=
1115 sizeof(struct keyspan_usa67_portStatusMessage)) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001116 dbg("%s - bad length %d", __func__, urb->actual_length);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001117 return;
1118 }
1119
1120
1121 /* Now do something useful with the data */
1122 msg = (struct keyspan_usa67_portStatusMessage *)data;
1123
1124 /* Check port number from message and retrieve private data */
1125 if (msg->port >= serial->num_ports) {
Alan Coxdeb91682008-07-22 11:13:08 +01001126 dbg("%s - Unexpected port number %d", __func__, msg->port);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001127 return;
1128 }
1129
1130 port = serial->port[msg->port];
1131 p_priv = usb_get_serial_port_data(port);
1132
1133 /* Update handshaking pin state information */
1134 old_dcd_state = p_priv->dcd_state;
1135 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1136 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1137
Alan Cox4a90f092008-10-13 10:39:46 +01001138 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
1139 struct tty_struct *tty = tty_port_tty_get(&port->port);
1140 if (tty && !C_CLOCAL(tty))
1141 tty_hangup(tty);
1142 tty_kref_put(tty);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001143 }
1144
1145 /* Resubmit urb so we continue receiving */
1146 urb->dev = serial->dev;
1147 err = usb_submit_urb(urb, GFP_ATOMIC);
1148 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08001149 dbg("%s - resubmit read urb failed. (%d)", __func__, err);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001150}
1151
1152static void usa67_glocont_callback(struct urb *urb)
1153{
1154 struct usb_serial *serial;
1155 struct usb_serial_port *port;
1156 struct keyspan_port_private *p_priv;
1157 int i;
1158
Alan Coxdeb91682008-07-22 11:13:08 +01001159 dbg("%s", __func__);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001160
1161 serial = urb->context;
1162 for (i = 0; i < serial->num_ports; ++i) {
1163 port = serial->port[i];
1164 p_priv = usb_get_serial_port_data(port);
1165
1166 if (p_priv->resend_cont) {
Alan Coxdeb91682008-07-22 11:13:08 +01001167 dbg("%s - sending setup", __func__);
Lucy McCoy0ca12682007-05-18 12:10:41 -07001168 keyspan_usa67_send_setup(serial, port,
1169 p_priv->resend_cont - 1);
1170 break;
1171 }
1172 }
1173}
1174
Alan Cox95da3102008-07-22 11:09:07 +01001175static int keyspan_write_room(struct tty_struct *tty)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176{
Alan Cox95da3102008-07-22 11:09:07 +01001177 struct usb_serial_port *port = tty->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001178 struct keyspan_port_private *p_priv;
1179 const struct keyspan_device_details *d_details;
1180 int flip;
1181 int data_len;
1182 struct urb *this_urb;
1183
Harvey Harrison441b62c2008-03-03 16:08:34 -08001184 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 p_priv = usb_get_serial_port_data(port);
1186 d_details = p_priv->device_details;
1187
Alan Coxa5b6f602008-04-08 17:16:06 +01001188 /* FIXME: locking */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001189 if (d_details->msg_format == msg_usa90)
Alan Coxdeb91682008-07-22 11:13:08 +01001190 data_len = 64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001191 else
1192 data_len = 63;
1193
1194 flip = p_priv->out_flip;
1195
1196 /* Check both endpoints to see if any are available. */
Alan Coxdeb91682008-07-22 11:13:08 +01001197 this_urb = p_priv->out_urbs[flip];
1198 if (this_urb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001199 if (this_urb->status != -EINPROGRESS)
Alan Coxdeb91682008-07-22 11:13:08 +01001200 return data_len;
1201 flip = (flip + 1) & d_details->outdat_endp_flip;
1202 this_urb = p_priv->out_urbs[flip];
1203 if (this_urb != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001204 if (this_urb->status != -EINPROGRESS)
Alan Coxdeb91682008-07-22 11:13:08 +01001205 return data_len;
1206 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207 }
Alan Coxa5b6f602008-04-08 17:16:06 +01001208 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001209}
1210
1211
Alan Cox95da3102008-07-22 11:09:07 +01001212static int keyspan_open(struct tty_struct *tty,
1213 struct usb_serial_port *port, struct file *filp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214{
Andrew Mortonf78ba152007-11-28 16:21:54 -08001215 struct keyspan_port_private *p_priv;
1216 struct keyspan_serial_private *s_priv;
1217 struct usb_serial *serial = port->serial;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 const struct keyspan_device_details *d_details;
1219 int i, err;
Andrew Mortonf78ba152007-11-28 16:21:54 -08001220 int baud_rate, device_port;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221 struct urb *urb;
Alan Cox95da3102008-07-22 11:09:07 +01001222 unsigned int cflag = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001223
1224 s_priv = usb_get_serial_data(serial);
1225 p_priv = usb_get_serial_port_data(port);
1226 d_details = p_priv->device_details;
Borislav Petkov7eea4362007-11-14 17:00:39 -08001227
Harvey Harrison441b62c2008-03-03 16:08:34 -08001228 dbg("%s - port%d.", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001229
1230 /* Set some sane defaults */
1231 p_priv->rts_state = 1;
1232 p_priv->dtr_state = 1;
1233 p_priv->baud = 9600;
1234
1235 /* force baud and lcr to be set on open */
1236 p_priv->old_baud = 0;
1237 p_priv->old_cflag = 0;
1238
1239 p_priv->out_flip = 0;
1240 p_priv->in_flip = 0;
1241
1242 /* Reset low level data toggle and start reading from endpoints */
1243 for (i = 0; i < 2; i++) {
Alan Coxdeb91682008-07-22 11:13:08 +01001244 urb = p_priv->in_urbs[i];
1245 if (urb == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 continue;
1247 urb->dev = serial->dev;
1248
Alan Coxdeb91682008-07-22 11:13:08 +01001249 /* make sure endpoint data toggle is synchronized
1250 with the device */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001251 usb_clear_halt(urb->dev, urb->pipe);
Alan Coxdeb91682008-07-22 11:13:08 +01001252 err = usb_submit_urb(urb, GFP_KERNEL);
1253 if (err != 0)
1254 dbg("%s - submit urb %d failed (%d)",
1255 __func__, i, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001256 }
1257
1258 /* Reset low level data toggle on out endpoints */
1259 for (i = 0; i < 2; i++) {
Alan Coxdeb91682008-07-22 11:13:08 +01001260 urb = p_priv->out_urbs[i];
1261 if (urb == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001262 continue;
1263 urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01001264 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1265 usb_pipeout(urb->pipe), 0); */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266 }
1267
Andrew Mortonf78ba152007-11-28 16:21:54 -08001268 /* get the terminal config for the setup message now so we don't
1269 * need to send 2 of them */
1270
Andrew Mortonf78ba152007-11-28 16:21:54 -08001271 device_port = port->number - port->serial->minor;
Alan Cox95da3102008-07-22 11:09:07 +01001272 if (tty) {
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 */
1278 if (baud_rate >= 0
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;
1282 }
Andrew Mortonf78ba152007-11-28 16:21:54 -08001283 }
Andrew Mortonf78ba152007-11-28 16:21:54 -08001284 /* set CTS/RTS handshake etc. */
1285 p_priv->cflag = cflag;
1286 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
1287
1288 keyspan_send_setup(port, 1);
Alan Coxdeb91682008-07-22 11:13:08 +01001289 /* mdelay(100); */
1290 /* keyspan_set_termios(port, NULL); */
Andrew Mortonf78ba152007-11-28 16:21:54 -08001291
Alan Coxa5b6f602008-04-08 17:16:06 +01001292 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293}
1294
1295static inline void stop_urb(struct urb *urb)
1296{
Greg Kroah-Hartman242cf672005-07-29 16:11:07 -04001297 if (urb && urb->status == -EINPROGRESS)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 usb_kill_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299}
1300
Alan Cox95da3102008-07-22 11:09:07 +01001301static void keyspan_close(struct tty_struct *tty,
1302 struct usb_serial_port *port, struct file *filp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303{
1304 int i;
1305 struct usb_serial *serial = port->serial;
1306 struct keyspan_serial_private *s_priv;
1307 struct keyspan_port_private *p_priv;
1308
Harvey Harrison441b62c2008-03-03 16:08:34 -08001309 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 s_priv = usb_get_serial_data(serial);
1311 p_priv = usb_get_serial_port_data(port);
Alan Coxdeb91682008-07-22 11:13:08 +01001312
Linus Torvalds1da177e2005-04-16 15:20:36 -07001313 p_priv->rts_state = 0;
1314 p_priv->dtr_state = 0;
Alan Coxdeb91682008-07-22 11:13:08 +01001315
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316 if (serial->dev) {
1317 keyspan_send_setup(port, 2);
1318 /* pilot-xfer seems to work best with this delay */
1319 mdelay(100);
Alan Coxdeb91682008-07-22 11:13:08 +01001320 /* keyspan_set_termios(port, NULL); */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321 }
1322
1323 /*while (p_priv->outcont_urb->status == -EINPROGRESS) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001324 dbg("%s - urb in progress", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 }*/
1326
1327 p_priv->out_flip = 0;
1328 p_priv->in_flip = 0;
1329
1330 if (serial->dev) {
1331 /* Stop reading/writing urbs */
1332 stop_urb(p_priv->inack_urb);
1333 /* stop_urb(p_priv->outcont_urb); */
1334 for (i = 0; i < 2; i++) {
1335 stop_urb(p_priv->in_urbs[i]);
1336 stop_urb(p_priv->out_urbs[i]);
1337 }
1338 }
Alan Cox4a90f092008-10-13 10:39:46 +01001339 tty_port_tty_set(&port->port, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340}
1341
Alan Coxdeb91682008-07-22 11:13:08 +01001342/* download the firmware to a pre-renumeration device */
1343static int keyspan_fake_startup(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344{
1345 int response;
David Woodhouse2971c572008-05-30 14:04:03 +03001346 const struct ihex_binrec *record;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347 char *fw_name;
David Woodhouse2971c572008-05-30 14:04:03 +03001348 const struct firmware *fw;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349
1350 dbg("Keyspan startup version %04x product %04x",
1351 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1352 le16_to_cpu(serial->dev->descriptor.idProduct));
Alan Coxdeb91682008-07-22 11:13:08 +01001353
1354 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1355 != 0x8000) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356 dbg("Firmware already loaded. Quitting.");
Alan Coxdeb91682008-07-22 11:13:08 +01001357 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358 }
1359
1360 /* Select firmware image on the basis of idProduct */
1361 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1362 case keyspan_usa28_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001363 fw_name = "keyspan/usa28.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 break;
1365
1366 case keyspan_usa28x_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001367 fw_name = "keyspan/usa28x.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 break;
1369
1370 case keyspan_usa28xa_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001371 fw_name = "keyspan/usa28xa.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 break;
1373
1374 case keyspan_usa28xb_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001375 fw_name = "keyspan/usa28xb.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376 break;
1377
1378 case keyspan_usa19_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001379 fw_name = "keyspan/usa19.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380 break;
Alan Coxdeb91682008-07-22 11:13:08 +01001381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382 case keyspan_usa19qi_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001383 fw_name = "keyspan/usa19qi.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384 break;
Alan Coxdeb91682008-07-22 11:13:08 +01001385
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386 case keyspan_mpr_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001387 fw_name = "keyspan/mpr.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001388 break;
1389
1390 case keyspan_usa19qw_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001391 fw_name = "keyspan/usa19qw.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 break;
Alan Coxdeb91682008-07-22 11:13:08 +01001393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 case keyspan_usa18x_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001395 fw_name = "keyspan/usa18x.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 break;
Alan Coxdeb91682008-07-22 11:13:08 +01001397
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398 case keyspan_usa19w_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001399 fw_name = "keyspan/usa19w.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001400 break;
Alan Coxdeb91682008-07-22 11:13:08 +01001401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402 case keyspan_usa49w_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001403 fw_name = "keyspan/usa49w.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 break;
1405
1406 case keyspan_usa49wlc_pre_product_id:
David Woodhouse2971c572008-05-30 14:04:03 +03001407 fw_name = "keyspan/usa49wlc.fw";
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 break;
1409
1410 default:
David Woodhouse2971c572008-05-30 14:04:03 +03001411 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1412 le16_to_cpu(serial->dev->descriptor.idProduct));
1413 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001414 }
1415
David Woodhouse2971c572008-05-30 14:04:03 +03001416 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
1418 return(1);
1419 }
1420
1421 dbg("Uploading Keyspan %s firmware.", fw_name);
1422
1423 /* download the firmware image */
1424 response = ezusb_set_reset(serial, 1);
1425
David Woodhouse2971c572008-05-30 14:04:03 +03001426 record = (const struct ihex_binrec *)fw->data;
1427
1428 while (record) {
1429 response = ezusb_writememory(serial, be32_to_cpu(record->addr),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 (unsigned char *)record->data,
David Woodhouse2971c572008-05-30 14:04:03 +03001431 be16_to_cpu(record->len), 0xa0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 if (response < 0) {
Alan Coxdeb91682008-07-22 11:13:08 +01001433 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n",
David Woodhouse2971c572008-05-30 14:04:03 +03001434 response, be32_to_cpu(record->addr),
1435 record->data, be16_to_cpu(record->len));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 break;
1437 }
David Woodhouse2971c572008-05-30 14:04:03 +03001438 record = ihex_next_binrec(record);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001439 }
David Woodhouse2971c572008-05-30 14:04:03 +03001440 release_firmware(fw);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001441 /* bring device out of reset. Renumeration will occur in a
1442 moment and the new device will bind to the real driver */
1443 response = ezusb_set_reset(serial, 0);
1444
1445 /* we don't want this device to have a driver assigned to it. */
Alan Coxdeb91682008-07-22 11:13:08 +01001446 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001447}
1448
1449/* Helper functions used by keyspan_setup_urbs */
Rainer Weikusatfdcba532007-01-03 15:36:25 +01001450static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1451 int endpoint)
1452{
1453 struct usb_host_interface *iface_desc;
1454 struct usb_endpoint_descriptor *ep;
1455 int i;
1456
1457 iface_desc = serial->interface->cur_altsetting;
1458 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1459 ep = &iface_desc->endpoint[i].desc;
1460 if (ep->bEndpointAddress == endpoint)
1461 return ep;
1462 }
1463 dev_warn(&serial->interface->dev, "found no endpoint descriptor for "
1464 "endpoint %x\n", endpoint);
1465 return NULL;
1466}
1467
Alan Coxdeb91682008-07-22 11:13:08 +01001468static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001469 int dir, void *ctx, char *buf, int len,
David Howells7d12e782006-10-05 14:55:46 +01001470 void (*callback)(struct urb *))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001471{
1472 struct urb *urb;
Rainer Weikusatfdcba532007-01-03 15:36:25 +01001473 struct usb_endpoint_descriptor const *ep_desc;
1474 char const *ep_type_name;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475
1476 if (endpoint == -1)
1477 return NULL; /* endpoint not needed */
1478
Alan Coxdeb91682008-07-22 11:13:08 +01001479 dbg("%s - alloc for endpoint %d.", __func__, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1481 if (urb == NULL) {
Alan Coxdeb91682008-07-22 11:13:08 +01001482 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001483 return NULL;
1484 }
1485
Lucy McCoy0ca12682007-05-18 12:10:41 -07001486 if (endpoint == 0) {
1487 /* control EP filled in when used */
1488 return urb;
1489 }
1490
Rainer Weikusatfdcba532007-01-03 15:36:25 +01001491 ep_desc = find_ep(serial, endpoint);
1492 if (!ep_desc) {
1493 /* leak the urb, something's wrong and the callers don't care */
1494 return urb;
1495 }
1496 if (usb_endpoint_xfer_int(ep_desc)) {
1497 ep_type_name = "INT";
1498 usb_fill_int_urb(urb, serial->dev,
1499 usb_sndintpipe(serial->dev, endpoint) | dir,
1500 buf, len, callback, ctx,
1501 ep_desc->bInterval);
1502 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1503 ep_type_name = "BULK";
1504 usb_fill_bulk_urb(urb, serial->dev,
1505 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1506 buf, len, callback, ctx);
1507 } else {
1508 dev_warn(&serial->interface->dev,
1509 "unsupported endpoint type %x\n",
Julia Lawall2e0fe702008-12-29 11:22:14 +01001510 usb_endpoint_type(ep_desc));
Rainer Weikusatfdcba532007-01-03 15:36:25 +01001511 usb_free_urb(urb);
1512 return NULL;
1513 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001514
Rainer Weikusatfdcba532007-01-03 15:36:25 +01001515 dbg("%s - using urb %p for %s endpoint %x",
1516 __func__, urb, ep_type_name, endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001517 return urb;
1518}
1519
1520static struct callbacks {
David Howells7d12e782006-10-05 14:55:46 +01001521 void (*instat_callback)(struct urb *);
1522 void (*glocont_callback)(struct urb *);
1523 void (*indat_callback)(struct urb *);
1524 void (*outdat_callback)(struct urb *);
1525 void (*inack_callback)(struct urb *);
1526 void (*outcont_callback)(struct urb *);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527} keyspan_callbacks[] = {
1528 {
1529 /* msg_usa26 callbacks */
1530 .instat_callback = usa26_instat_callback,
1531 .glocont_callback = usa26_glocont_callback,
1532 .indat_callback = usa26_indat_callback,
1533 .outdat_callback = usa2x_outdat_callback,
1534 .inack_callback = usa26_inack_callback,
1535 .outcont_callback = usa26_outcont_callback,
1536 }, {
1537 /* msg_usa28 callbacks */
1538 .instat_callback = usa28_instat_callback,
1539 .glocont_callback = usa28_glocont_callback,
1540 .indat_callback = usa28_indat_callback,
1541 .outdat_callback = usa2x_outdat_callback,
1542 .inack_callback = usa28_inack_callback,
1543 .outcont_callback = usa28_outcont_callback,
1544 }, {
1545 /* msg_usa49 callbacks */
1546 .instat_callback = usa49_instat_callback,
1547 .glocont_callback = usa49_glocont_callback,
1548 .indat_callback = usa49_indat_callback,
1549 .outdat_callback = usa2x_outdat_callback,
1550 .inack_callback = usa49_inack_callback,
1551 .outcont_callback = usa49_outcont_callback,
1552 }, {
1553 /* msg_usa90 callbacks */
1554 .instat_callback = usa90_instat_callback,
Alan Coxdeb91682008-07-22 11:13:08 +01001555 .glocont_callback = usa28_glocont_callback,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556 .indat_callback = usa90_indat_callback,
1557 .outdat_callback = usa2x_outdat_callback,
1558 .inack_callback = usa28_inack_callback,
1559 .outcont_callback = usa90_outcont_callback,
Lucy McCoy0ca12682007-05-18 12:10:41 -07001560 }, {
1561 /* msg_usa67 callbacks */
1562 .instat_callback = usa67_instat_callback,
1563 .glocont_callback = usa67_glocont_callback,
1564 .indat_callback = usa26_indat_callback,
1565 .outdat_callback = usa2x_outdat_callback,
1566 .inack_callback = usa26_inack_callback,
1567 .outcont_callback = usa26_outcont_callback,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001568 }
1569};
1570
1571 /* Generic setup urbs function that uses
1572 data in device_details */
1573static void keyspan_setup_urbs(struct usb_serial *serial)
1574{
1575 int i, j;
1576 struct keyspan_serial_private *s_priv;
1577 const struct keyspan_device_details *d_details;
1578 struct usb_serial_port *port;
1579 struct keyspan_port_private *p_priv;
1580 struct callbacks *cback;
1581 int endp;
1582
Alan Coxdeb91682008-07-22 11:13:08 +01001583 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584
1585 s_priv = usb_get_serial_data(serial);
1586 d_details = s_priv->device_details;
1587
Alan Coxdeb91682008-07-22 11:13:08 +01001588 /* Setup values for the various callback routines */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589 cback = &keyspan_callbacks[d_details->msg_format];
1590
Alan Coxdeb91682008-07-22 11:13:08 +01001591 /* Allocate and set up urbs for each one that is in use,
1592 starting with instat endpoints */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593 s_priv->instat_urb = keyspan_setup_urb
1594 (serial, d_details->instat_endpoint, USB_DIR_IN,
1595 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1596 cback->instat_callback);
1597
Lucy McCoy0ca12682007-05-18 12:10:41 -07001598 s_priv->indat_urb = keyspan_setup_urb
1599 (serial, d_details->indat_endpoint, USB_DIR_IN,
1600 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1601 usa49wg_indat_callback);
1602
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603 s_priv->glocont_urb = keyspan_setup_urb
1604 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1605 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1606 cback->glocont_callback);
1607
Alan Coxdeb91682008-07-22 11:13:08 +01001608 /* Setup endpoints for each port specific thing */
1609 for (i = 0; i < d_details->num_ports; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610 port = serial->port[i];
1611 p_priv = usb_get_serial_port_data(port);
1612
1613 /* Do indat endpoints first, once for each flip */
1614 endp = d_details->indat_endpoints[i];
1615 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
1616 p_priv->in_urbs[j] = keyspan_setup_urb
1617 (serial, endp, USB_DIR_IN, port,
1618 p_priv->in_buffer[j], 64,
1619 cback->indat_callback);
1620 }
1621 for (; j < 2; ++j)
1622 p_priv->in_urbs[j] = NULL;
1623
1624 /* outdat endpoints also have flip */
1625 endp = d_details->outdat_endpoints[i];
1626 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
1627 p_priv->out_urbs[j] = keyspan_setup_urb
1628 (serial, endp, USB_DIR_OUT, port,
1629 p_priv->out_buffer[j], 64,
1630 cback->outdat_callback);
1631 }
1632 for (; j < 2; ++j)
1633 p_priv->out_urbs[j] = NULL;
1634
1635 /* inack endpoint */
1636 p_priv->inack_urb = keyspan_setup_urb
1637 (serial, d_details->inack_endpoints[i], USB_DIR_IN,
1638 port, p_priv->inack_buffer, 1, cback->inack_callback);
1639
1640 /* outcont endpoint */
1641 p_priv->outcont_urb = keyspan_setup_urb
1642 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
1643 port, p_priv->outcont_buffer, 64,
1644 cback->outcont_callback);
Alan Coxdeb91682008-07-22 11:13:08 +01001645 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646}
1647
1648/* usa19 function doesn't require prescaler */
1649static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1650 u8 *rate_low, u8 *prescaler, int portnum)
1651{
1652 u32 b16, /* baud rate times 16 (actual rate used internally) */
Alan Coxdeb91682008-07-22 11:13:08 +01001653 div, /* divisor */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001654 cnt; /* inverse of divisor (programmed into 8051) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001655
Alan Coxdeb91682008-07-22 11:13:08 +01001656 dbg("%s - %d.", __func__, baud_rate);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001657
Alan Coxdeb91682008-07-22 11:13:08 +01001658 /* prevent divide by zero... */
1659 b16 = baud_rate * 16L;
1660 if (b16 == 0)
1661 return KEYSPAN_INVALID_BAUD_RATE;
1662 /* Any "standard" rate over 57k6 is marginal on the USA-19
1663 as we run out of divisor resolution. */
1664 if (baud_rate > 57600)
1665 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666
Alan Coxdeb91682008-07-22 11:13:08 +01001667 /* calculate the divisor and the counter (its inverse) */
1668 div = baudclk / b16;
1669 if (div == 0)
1670 return KEYSPAN_INVALID_BAUD_RATE;
1671 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001672 cnt = 0 - div;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673
Alan Coxdeb91682008-07-22 11:13:08 +01001674 if (div > 0xffff)
1675 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676
Alan Coxdeb91682008-07-22 11:13:08 +01001677 /* return the counter values if non-null */
1678 if (rate_low)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001679 *rate_low = (u8) (cnt & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001680 if (rate_hi)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001681 *rate_hi = (u8) ((cnt >> 8) & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001682 if (rate_low && rate_hi)
1683 dbg("%s - %d %02x %02x.",
1684 __func__, baud_rate, *rate_hi, *rate_low);
1685 return KEYSPAN_BAUD_RATE_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001686}
1687
1688/* usa19hs function doesn't require prescaler */
1689static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1690 u8 *rate_low, u8 *prescaler, int portnum)
1691{
1692 u32 b16, /* baud rate times 16 (actual rate used internally) */
Alan Coxdeb91682008-07-22 11:13:08 +01001693 div; /* divisor */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001694
Alan Coxdeb91682008-07-22 11:13:08 +01001695 dbg("%s - %d.", __func__, baud_rate);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696
Alan Coxdeb91682008-07-22 11:13:08 +01001697 /* prevent divide by zero... */
1698 b16 = baud_rate * 16L;
1699 if (b16 == 0)
1700 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001701
Alan Coxdeb91682008-07-22 11:13:08 +01001702 /* calculate the divisor */
1703 div = baudclk / b16;
1704 if (div == 0)
1705 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706
Alan Coxdeb91682008-07-22 11:13:08 +01001707 if (div > 0xffff)
1708 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
Alan Coxdeb91682008-07-22 11:13:08 +01001710 /* return the counter values if non-null */
1711 if (rate_low)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 *rate_low = (u8) (div & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001713
1714 if (rate_hi)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 *rate_hi = (u8) ((div >> 8) & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001716
1717 if (rate_low && rate_hi)
1718 dbg("%s - %d %02x %02x.",
1719 __func__, baud_rate, *rate_hi, *rate_low);
1720
1721 return KEYSPAN_BAUD_RATE_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001722}
1723
1724static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1725 u8 *rate_low, u8 *prescaler, int portnum)
1726{
1727 u32 b16, /* baud rate times 16 (actual rate used internally) */
1728 clk, /* clock with 13/8 prescaler */
Alan Coxdeb91682008-07-22 11:13:08 +01001729 div, /* divisor using 13/8 prescaler */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 res, /* resulting baud rate using 13/8 prescaler */
1731 diff, /* error using 13/8 prescaler */
1732 smallest_diff;
1733 u8 best_prescaler;
1734 int i;
1735
Alan Coxdeb91682008-07-22 11:13:08 +01001736 dbg("%s - %d.", __func__, baud_rate);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737
Alan Coxdeb91682008-07-22 11:13:08 +01001738 /* prevent divide by zero */
1739 b16 = baud_rate * 16L;
1740 if (b16 == 0)
1741 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742
Alan Coxdeb91682008-07-22 11:13:08 +01001743 /* Calculate prescaler by trying them all and looking
1744 for best fit */
1745
1746 /* start with largest possible difference */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747 smallest_diff = 0xffffffff;
1748
1749 /* 0 is an invalid prescaler, used as a flag */
1750 best_prescaler = 0;
1751
Alan Coxdeb91682008-07-22 11:13:08 +01001752 for (i = 8; i <= 0xff; ++i) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001753 clk = (baudclk * 8) / (u32) i;
Alan Coxdeb91682008-07-22 11:13:08 +01001754
1755 div = clk / b16;
1756 if (div == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001757 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758
1759 res = clk / div;
Alan Coxdeb91682008-07-22 11:13:08 +01001760 diff = (res > b16) ? (res-b16) : (b16-res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001761
Alan Coxdeb91682008-07-22 11:13:08 +01001762 if (diff < smallest_diff) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 best_prescaler = i;
1764 smallest_diff = diff;
1765 }
1766 }
1767
Alan Coxdeb91682008-07-22 11:13:08 +01001768 if (best_prescaler == 0)
1769 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001770
1771 clk = (baudclk * 8) / (u32) best_prescaler;
1772 div = clk / b16;
1773
Alan Coxdeb91682008-07-22 11:13:08 +01001774 /* return the divisor and prescaler if non-null */
1775 if (rate_low)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 *rate_low = (u8) (div & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001777 if (rate_hi)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778 *rate_hi = (u8) ((div >> 8) & 0xff);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001779 if (prescaler) {
1780 *prescaler = best_prescaler;
Harvey Harrison441b62c2008-03-03 16:08:34 -08001781 /* dbg("%s - %d %d", __func__, *prescaler, div); */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782 }
Alan Coxdeb91682008-07-22 11:13:08 +01001783 return KEYSPAN_BAUD_RATE_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784}
1785
1786 /* USA-28 supports different maximum baud rates on each port */
1787static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
1788 u8 *rate_low, u8 *prescaler, int portnum)
1789{
1790 u32 b16, /* baud rate times 16 (actual rate used internally) */
Alan Coxdeb91682008-07-22 11:13:08 +01001791 div, /* divisor */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792 cnt; /* inverse of divisor (programmed into 8051) */
1793
Alan Coxdeb91682008-07-22 11:13:08 +01001794 dbg("%s - %d.", __func__, baud_rate);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795
1796 /* prevent divide by zero */
Alan Coxdeb91682008-07-22 11:13:08 +01001797 b16 = baud_rate * 16L;
1798 if (b16 == 0)
1799 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800
Alan Coxdeb91682008-07-22 11:13:08 +01001801 /* calculate the divisor and the counter (its inverse) */
1802 div = KEYSPAN_USA28_BAUDCLK / b16;
1803 if (div == 0)
1804 return KEYSPAN_INVALID_BAUD_RATE;
1805 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806 cnt = 0 - div;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807
Alan Coxdeb91682008-07-22 11:13:08 +01001808 /* check for out of range, based on portnum,
1809 and return result */
1810 if (portnum == 0) {
1811 if (div > 0xffff)
1812 return KEYSPAN_INVALID_BAUD_RATE;
1813 } else {
1814 if (portnum == 1) {
1815 if (div > 0xff)
1816 return KEYSPAN_INVALID_BAUD_RATE;
1817 } else
1818 return KEYSPAN_INVALID_BAUD_RATE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001819 }
1820
1821 /* return the counter values if not NULL
1822 (port 1 will ignore retHi) */
Alan Coxdeb91682008-07-22 11:13:08 +01001823 if (rate_low)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001824 *rate_low = (u8) (cnt & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001825 if (rate_hi)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 *rate_hi = (u8) ((cnt >> 8) & 0xff);
Alan Coxdeb91682008-07-22 11:13:08 +01001827 dbg("%s - %d OK.", __func__, baud_rate);
1828 return KEYSPAN_BAUD_RATE_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829}
1830
1831static int keyspan_usa26_send_setup(struct usb_serial *serial,
1832 struct usb_serial_port *port,
1833 int reset_port)
1834{
Alan Coxdeb91682008-07-22 11:13:08 +01001835 struct keyspan_usa26_portControlMessage msg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001836 struct keyspan_serial_private *s_priv;
1837 struct keyspan_port_private *p_priv;
1838 const struct keyspan_device_details *d_details;
1839 int outcont_urb;
1840 struct urb *this_urb;
1841 int device_port, err;
1842
Alan Coxdeb91682008-07-22 11:13:08 +01001843 dbg("%s reset=%d", __func__, reset_port);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844
1845 s_priv = usb_get_serial_data(serial);
1846 p_priv = usb_get_serial_port_data(port);
1847 d_details = s_priv->device_details;
1848 device_port = port->number - port->serial->minor;
1849
1850 outcont_urb = d_details->outcont_endpoints[port->number];
1851 this_urb = p_priv->outcont_urb;
1852
Harvey Harrison441b62c2008-03-03 16:08:34 -08001853 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854
1855 /* Make sure we have an urb then send the message */
1856 if (this_urb == NULL) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001857 dbg("%s - oops no urb.", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001858 return -1;
1859 }
1860
1861 /* Save reset port val for resend.
Lucy McCoy0ca12682007-05-18 12:10:41 -07001862 Don't overwrite resend for open/close condition. */
1863 if ((reset_port + 1) > p_priv->resend_cont)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001864 p_priv->resend_cont = reset_port + 1;
1865 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +01001866 /* dbg("%s - already writing", __func__); */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867 mdelay(5);
Alan Coxdeb91682008-07-22 11:13:08 +01001868 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001869 }
1870
Alan Coxdeb91682008-07-22 11:13:08 +01001871 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
1872
1873 /* Only set baud rate if it's changed */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001874 if (p_priv->old_baud != p_priv->baud) {
1875 p_priv->old_baud = p_priv->baud;
1876 msg.setClocking = 0xff;
1877 if (d_details->calculate_baud_rate
1878 (p_priv->baud, d_details->baudclk, &msg.baudHi,
Alan Coxdeb91682008-07-22 11:13:08 +01001879 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
1880 dbg("%s - Invalid baud rate %d requested, using 9600.",
1881 __func__, p_priv->baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882 msg.baudLo = 0;
1883 msg.baudHi = 125; /* Values for 9600 baud */
1884 msg.prescaler = 10;
1885 }
1886 msg.setPrescaler = 0xff;
1887 }
1888
1889 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
1890 switch (p_priv->cflag & CSIZE) {
1891 case CS5:
1892 msg.lcr |= USA_DATABITS_5;
1893 break;
1894 case CS6:
1895 msg.lcr |= USA_DATABITS_6;
1896 break;
1897 case CS7:
1898 msg.lcr |= USA_DATABITS_7;
1899 break;
1900 case CS8:
1901 msg.lcr |= USA_DATABITS_8;
1902 break;
1903 }
1904 if (p_priv->cflag & PARENB) {
1905 /* note USA_PARITY_NONE == 0 */
1906 msg.lcr |= (p_priv->cflag & PARODD)?
Alan Coxdeb91682008-07-22 11:13:08 +01001907 USA_PARITY_ODD : USA_PARITY_EVEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001908 }
1909 msg.setLcr = 0xff;
1910
1911 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
1912 msg.xonFlowControl = 0;
1913 msg.setFlowControl = 0xff;
1914 msg.forwardingLength = 16;
1915 msg.xonChar = 17;
1916 msg.xoffChar = 19;
1917
1918 /* Opening port */
1919 if (reset_port == 1) {
1920 msg._txOn = 1;
1921 msg._txOff = 0;
1922 msg.txFlush = 0;
1923 msg.txBreak = 0;
1924 msg.rxOn = 1;
1925 msg.rxOff = 0;
1926 msg.rxFlush = 1;
1927 msg.rxForward = 0;
1928 msg.returnStatus = 0;
1929 msg.resetDataToggle = 0xff;
1930 }
1931
1932 /* Closing port */
1933 else if (reset_port == 2) {
1934 msg._txOn = 0;
1935 msg._txOff = 1;
1936 msg.txFlush = 0;
1937 msg.txBreak = 0;
1938 msg.rxOn = 0;
1939 msg.rxOff = 1;
1940 msg.rxFlush = 1;
1941 msg.rxForward = 0;
1942 msg.returnStatus = 0;
1943 msg.resetDataToggle = 0;
1944 }
1945
1946 /* Sending intermediate configs */
1947 else {
Alan Coxdeb91682008-07-22 11:13:08 +01001948 msg._txOn = (!p_priv->break_on);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001949 msg._txOff = 0;
1950 msg.txFlush = 0;
1951 msg.txBreak = (p_priv->break_on);
1952 msg.rxOn = 0;
1953 msg.rxOff = 0;
1954 msg.rxFlush = 0;
1955 msg.rxForward = 0;
1956 msg.returnStatus = 0;
1957 msg.resetDataToggle = 0x0;
1958 }
1959
Alan Coxdeb91682008-07-22 11:13:08 +01001960 /* Do handshaking outputs */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 msg.setTxTriState_setRts = 0xff;
1962 msg.txTriState_rts = p_priv->rts_state;
1963
1964 msg.setHskoa_setDtr = 0xff;
1965 msg.hskoa_dtr = p_priv->dtr_state;
Alan Coxdeb91682008-07-22 11:13:08 +01001966
Linus Torvalds1da177e2005-04-16 15:20:36 -07001967 p_priv->resend_cont = 0;
Alan Coxdeb91682008-07-22 11:13:08 +01001968 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1969
Linus Torvalds1da177e2005-04-16 15:20:36 -07001970 /* send the data out the device on control endpoint */
1971 this_urb->transfer_buffer_length = sizeof(msg);
1972
1973 this_urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01001974 err = usb_submit_urb(this_urb, GFP_ATOMIC);
1975 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08001976 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977#if 0
1978 else {
Harvey Harrison441b62c2008-03-03 16:08:34 -08001979 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980 outcont_urb, this_urb->transfer_buffer_length,
1981 usb_pipeendpoint(this_urb->pipe));
1982 }
1983#endif
1984
Alan Coxa5b6f602008-04-08 17:16:06 +01001985 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986}
1987
1988static int keyspan_usa28_send_setup(struct usb_serial *serial,
1989 struct usb_serial_port *port,
1990 int reset_port)
1991{
Alan Coxdeb91682008-07-22 11:13:08 +01001992 struct keyspan_usa28_portControlMessage msg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001993 struct keyspan_serial_private *s_priv;
1994 struct keyspan_port_private *p_priv;
1995 const struct keyspan_device_details *d_details;
1996 struct urb *this_urb;
1997 int device_port, err;
1998
Alan Coxdeb91682008-07-22 11:13:08 +01001999 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002000
2001 s_priv = usb_get_serial_data(serial);
2002 p_priv = usb_get_serial_port_data(port);
2003 d_details = s_priv->device_details;
2004 device_port = port->number - port->serial->minor;
2005
2006 /* only do something if we have a bulk out endpoint */
Alan Coxdeb91682008-07-22 11:13:08 +01002007 this_urb = p_priv->outcont_urb;
2008 if (this_urb == NULL) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002009 dbg("%s - oops no urb.", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002010 return -1;
2011 }
2012
2013 /* Save reset port val for resend.
Lucy McCoy0ca12682007-05-18 12:10:41 -07002014 Don't overwrite resend for open/close condition. */
2015 if ((reset_port + 1) > p_priv->resend_cont)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002016 p_priv->resend_cont = reset_port + 1;
2017 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +01002018 dbg("%s already writing", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002019 mdelay(5);
Alan Coxdeb91682008-07-22 11:13:08 +01002020 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021 }
2022
Alan Coxdeb91682008-07-22 11:13:08 +01002023 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024
2025 msg.setBaudRate = 1;
2026 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
Alan Coxdeb91682008-07-22 11:13:08 +01002027 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2028 dbg("%s - Invalid baud rate requested %d.",
2029 __func__, p_priv->baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030 msg.baudLo = 0xff;
2031 msg.baudHi = 0xb2; /* Values for 9600 baud */
2032 }
2033
2034 /* If parity is enabled, we must calculate it ourselves. */
2035 msg.parity = 0; /* XXX for now */
2036
2037 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2038 msg.xonFlowControl = 0;
2039
Alan Coxdeb91682008-07-22 11:13:08 +01002040 /* Do handshaking outputs, DTR is inverted relative to RTS */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002041 msg.rts = p_priv->rts_state;
2042 msg.dtr = p_priv->dtr_state;
2043
2044 msg.forwardingLength = 16;
2045 msg.forwardMs = 10;
2046 msg.breakThreshold = 45;
2047 msg.xonChar = 17;
2048 msg.xoffChar = 19;
2049
2050 /*msg.returnStatus = 1;
2051 msg.resetDataToggle = 0xff;*/
2052 /* Opening port */
2053 if (reset_port == 1) {
2054 msg._txOn = 1;
2055 msg._txOff = 0;
2056 msg.txFlush = 0;
2057 msg.txForceXoff = 0;
2058 msg.txBreak = 0;
2059 msg.rxOn = 1;
2060 msg.rxOff = 0;
2061 msg.rxFlush = 1;
2062 msg.rxForward = 0;
2063 msg.returnStatus = 0;
2064 msg.resetDataToggle = 0xff;
2065 }
2066 /* Closing port */
2067 else if (reset_port == 2) {
2068 msg._txOn = 0;
2069 msg._txOff = 1;
2070 msg.txFlush = 0;
2071 msg.txForceXoff = 0;
2072 msg.txBreak = 0;
2073 msg.rxOn = 0;
2074 msg.rxOff = 1;
2075 msg.rxFlush = 1;
2076 msg.rxForward = 0;
2077 msg.returnStatus = 0;
2078 msg.resetDataToggle = 0;
2079 }
2080 /* Sending intermediate configs */
2081 else {
Alan Coxdeb91682008-07-22 11:13:08 +01002082 msg._txOn = (!p_priv->break_on);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083 msg._txOff = 0;
2084 msg.txFlush = 0;
2085 msg.txForceXoff = 0;
2086 msg.txBreak = (p_priv->break_on);
2087 msg.rxOn = 0;
2088 msg.rxOff = 0;
2089 msg.rxFlush = 0;
2090 msg.rxForward = 0;
2091 msg.returnStatus = 0;
2092 msg.resetDataToggle = 0x0;
2093 }
2094
2095 p_priv->resend_cont = 0;
Alan Coxdeb91682008-07-22 11:13:08 +01002096 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002097
2098 /* send the data out the device on control endpoint */
2099 this_urb->transfer_buffer_length = sizeof(msg);
2100
2101 this_urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01002102 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2103 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002104 dbg("%s - usb_submit_urb(setup) failed", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105#if 0
2106 else {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002107 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002108 this_urb->transfer_buffer_length);
2109 }
2110#endif
2111
Alan Coxa5b6f602008-04-08 17:16:06 +01002112 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002113}
2114
2115static int keyspan_usa49_send_setup(struct usb_serial *serial,
2116 struct usb_serial_port *port,
2117 int reset_port)
2118{
Lucy McCoy0ca12682007-05-18 12:10:41 -07002119 struct keyspan_usa49_portControlMessage msg;
2120 struct usb_ctrlrequest *dr = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 struct keyspan_serial_private *s_priv;
2122 struct keyspan_port_private *p_priv;
2123 const struct keyspan_device_details *d_details;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002124 struct urb *this_urb;
2125 int err, device_port;
2126
Alan Coxdeb91682008-07-22 11:13:08 +01002127 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128
2129 s_priv = usb_get_serial_data(serial);
2130 p_priv = usb_get_serial_port_data(port);
2131 d_details = s_priv->device_details;
2132
Linus Torvalds1da177e2005-04-16 15:20:36 -07002133 this_urb = s_priv->glocont_urb;
2134
Lucy McCoy0ca12682007-05-18 12:10:41 -07002135 /* Work out which port within the device is being setup */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136 device_port = port->number - port->serial->minor;
2137
Alan Coxdeb91682008-07-22 11:13:08 +01002138 dbg("%s - endpoint %d port %d (%d)",
2139 __func__, usb_pipeendpoint(this_urb->pipe),
2140 port->number, device_port);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141
2142 /* Make sure we have an urb then send the message */
2143 if (this_urb == NULL) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002144 dbg("%s - oops no urb for port %d.", __func__, port->number);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145 return -1;
2146 }
2147
2148 /* Save reset port val for resend.
Lucy McCoy0ca12682007-05-18 12:10:41 -07002149 Don't overwrite resend for open/close condition. */
2150 if ((reset_port + 1) > p_priv->resend_cont)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151 p_priv->resend_cont = reset_port + 1;
Lucy McCoy0ca12682007-05-18 12:10:41 -07002152
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +01002154 /* dbg("%s - already writing", __func__); */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 mdelay(5);
Alan Coxdeb91682008-07-22 11:13:08 +01002156 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 }
2158
Alan Coxdeb91682008-07-22 11:13:08 +01002159 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160
2161 /*msg.portNumber = port->number;*/
2162 msg.portNumber = device_port;
Alan Coxdeb91682008-07-22 11:13:08 +01002163
2164 /* Only set baud rate if it's changed */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002165 if (p_priv->old_baud != p_priv->baud) {
2166 p_priv->old_baud = p_priv->baud;
2167 msg.setClocking = 0xff;
2168 if (d_details->calculate_baud_rate
2169 (p_priv->baud, d_details->baudclk, &msg.baudHi,
Alan Coxdeb91682008-07-22 11:13:08 +01002170 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2171 dbg("%s - Invalid baud rate %d requested, using 9600.",
2172 __func__, p_priv->baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002173 msg.baudLo = 0;
2174 msg.baudHi = 125; /* Values for 9600 baud */
2175 msg.prescaler = 10;
2176 }
Alan Coxdeb91682008-07-22 11:13:08 +01002177 /* msg.setPrescaler = 0xff; */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178 }
2179
2180 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2181 switch (p_priv->cflag & CSIZE) {
2182 case CS5:
2183 msg.lcr |= USA_DATABITS_5;
2184 break;
2185 case CS6:
2186 msg.lcr |= USA_DATABITS_6;
2187 break;
2188 case CS7:
2189 msg.lcr |= USA_DATABITS_7;
2190 break;
2191 case CS8:
2192 msg.lcr |= USA_DATABITS_8;
2193 break;
2194 }
2195 if (p_priv->cflag & PARENB) {
2196 /* note USA_PARITY_NONE == 0 */
2197 msg.lcr |= (p_priv->cflag & PARODD)?
Alan Coxdeb91682008-07-22 11:13:08 +01002198 USA_PARITY_ODD : USA_PARITY_EVEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 }
2200 msg.setLcr = 0xff;
2201
2202 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2203 msg.xonFlowControl = 0;
2204 msg.setFlowControl = 0xff;
Alan Coxdeb91682008-07-22 11:13:08 +01002205
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206 msg.forwardingLength = 16;
2207 msg.xonChar = 17;
2208 msg.xoffChar = 19;
2209
Alan Coxdeb91682008-07-22 11:13:08 +01002210 /* Opening port */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211 if (reset_port == 1) {
2212 msg._txOn = 1;
2213 msg._txOff = 0;
2214 msg.txFlush = 0;
2215 msg.txBreak = 0;
2216 msg.rxOn = 1;
2217 msg.rxOff = 0;
2218 msg.rxFlush = 1;
2219 msg.rxForward = 0;
2220 msg.returnStatus = 0;
2221 msg.resetDataToggle = 0xff;
2222 msg.enablePort = 1;
2223 msg.disablePort = 0;
2224 }
2225 /* Closing port */
2226 else if (reset_port == 2) {
2227 msg._txOn = 0;
2228 msg._txOff = 1;
2229 msg.txFlush = 0;
2230 msg.txBreak = 0;
2231 msg.rxOn = 0;
2232 msg.rxOff = 1;
2233 msg.rxFlush = 1;
2234 msg.rxForward = 0;
2235 msg.returnStatus = 0;
2236 msg.resetDataToggle = 0;
2237 msg.enablePort = 0;
2238 msg.disablePort = 1;
2239 }
2240 /* Sending intermediate configs */
2241 else {
Alan Coxdeb91682008-07-22 11:13:08 +01002242 msg._txOn = (!p_priv->break_on);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243 msg._txOff = 0;
2244 msg.txFlush = 0;
2245 msg.txBreak = (p_priv->break_on);
2246 msg.rxOn = 0;
2247 msg.rxOff = 0;
2248 msg.rxFlush = 0;
2249 msg.rxForward = 0;
2250 msg.returnStatus = 0;
2251 msg.resetDataToggle = 0x0;
2252 msg.enablePort = 0;
2253 msg.disablePort = 0;
2254 }
2255
Alan Coxdeb91682008-07-22 11:13:08 +01002256 /* Do handshaking outputs */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257 msg.setRts = 0xff;
2258 msg.rts = p_priv->rts_state;
2259
2260 msg.setDtr = 0xff;
2261 msg.dtr = p_priv->dtr_state;
Alan Coxdeb91682008-07-22 11:13:08 +01002262
Linus Torvalds1da177e2005-04-16 15:20:36 -07002263 p_priv->resend_cont = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002264
Alan Coxdeb91682008-07-22 11:13:08 +01002265 /* if the device is a 49wg, we send control message on usb
2266 control EP 0 */
Lucy McCoy0ca12682007-05-18 12:10:41 -07002267
2268 if (d_details->product_id == keyspan_usa49wg_product_id) {
2269 dr = (void *)(s_priv->ctrl_buf);
2270 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2271 dr->bRequest = 0xB0; /* 49wg control message */;
2272 dr->wValue = 0;
2273 dr->wIndex = 0;
2274 dr->wLength = cpu_to_le16(sizeof(msg));
2275
Alan Coxdeb91682008-07-22 11:13:08 +01002276 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
Lucy McCoy0ca12682007-05-18 12:10:41 -07002277
Alan Coxdeb91682008-07-22 11:13:08 +01002278 usb_fill_control_urb(this_urb, serial->dev,
2279 usb_sndctrlpipe(serial->dev, 0),
2280 (unsigned char *)dr, s_priv->glocont_buf,
2281 sizeof(msg), usa49_glocont_callback, serial);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002282
2283 } else {
2284 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
Alan Coxdeb91682008-07-22 11:13:08 +01002285
Lucy McCoy0ca12682007-05-18 12:10:41 -07002286 /* send the data out the device on control endpoint */
2287 this_urb->transfer_buffer_length = sizeof(msg);
2288
2289 this_urb->dev = serial->dev;
2290 }
Alan Coxdeb91682008-07-22 11:13:08 +01002291 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2292 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002293 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002294#if 0
2295 else {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002296 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__,
Lucy McCoy0ca12682007-05-18 12:10:41 -07002297 outcont_urb, this_urb->transfer_buffer_length,
2298 usb_pipeendpoint(this_urb->pipe));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002299 }
2300#endif
2301
Alan Coxa5b6f602008-04-08 17:16:06 +01002302 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303}
2304
2305static int keyspan_usa90_send_setup(struct usb_serial *serial,
2306 struct usb_serial_port *port,
2307 int reset_port)
2308{
Alan Coxdeb91682008-07-22 11:13:08 +01002309 struct keyspan_usa90_portControlMessage msg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002310 struct keyspan_serial_private *s_priv;
2311 struct keyspan_port_private *p_priv;
2312 const struct keyspan_device_details *d_details;
2313 struct urb *this_urb;
2314 int err;
2315 u8 prescaler;
2316
Alan Coxdeb91682008-07-22 11:13:08 +01002317 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002318
2319 s_priv = usb_get_serial_data(serial);
2320 p_priv = usb_get_serial_port_data(port);
2321 d_details = s_priv->device_details;
2322
2323 /* only do something if we have a bulk out endpoint */
Alan Coxdeb91682008-07-22 11:13:08 +01002324 this_urb = p_priv->outcont_urb;
2325 if (this_urb == NULL) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002326 dbg("%s - oops no urb.", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327 return -1;
2328 }
2329
2330 /* Save reset port val for resend.
2331 Don't overwrite resend for open/close condition. */
2332 if ((reset_port + 1) > p_priv->resend_cont)
2333 p_priv->resend_cont = reset_port + 1;
2334 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +01002335 dbg("%s already writing", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002336 mdelay(5);
Alan Coxdeb91682008-07-22 11:13:08 +01002337 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002338 }
2339
Alan Coxdeb91682008-07-22 11:13:08 +01002340 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002341
Alan Coxdeb91682008-07-22 11:13:08 +01002342 /* Only set baud rate if it's changed */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002343 if (p_priv->old_baud != p_priv->baud) {
2344 p_priv->old_baud = p_priv->baud;
2345 msg.setClocking = 0x01;
2346 if (d_details->calculate_baud_rate
2347 (p_priv->baud, d_details->baudclk, &msg.baudHi,
Alan Coxdeb91682008-07-22 11:13:08 +01002348 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2349 dbg("%s - Invalid baud rate %d requested, using 9600.",
2350 __func__, p_priv->baud);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002351 p_priv->baud = 9600;
Alan Coxdeb91682008-07-22 11:13:08 +01002352 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002353 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2354 }
2355 msg.setRxMode = 1;
2356 msg.setTxMode = 1;
2357 }
2358
2359 /* modes must always be correctly specified */
Alan Coxdeb91682008-07-22 11:13:08 +01002360 if (p_priv->baud > 57600) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002361 msg.rxMode = RXMODE_DMA;
2362 msg.txMode = TXMODE_DMA;
Alan Coxdeb91682008-07-22 11:13:08 +01002363 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002364 msg.rxMode = RXMODE_BYHAND;
2365 msg.txMode = TXMODE_BYHAND;
2366 }
2367
2368 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
2369 switch (p_priv->cflag & CSIZE) {
2370 case CS5:
2371 msg.lcr |= USA_DATABITS_5;
2372 break;
2373 case CS6:
2374 msg.lcr |= USA_DATABITS_6;
2375 break;
2376 case CS7:
2377 msg.lcr |= USA_DATABITS_7;
2378 break;
2379 case CS8:
2380 msg.lcr |= USA_DATABITS_8;
2381 break;
2382 }
2383 if (p_priv->cflag & PARENB) {
2384 /* note USA_PARITY_NONE == 0 */
2385 msg.lcr |= (p_priv->cflag & PARODD)?
Alan Coxdeb91682008-07-22 11:13:08 +01002386 USA_PARITY_ODD : USA_PARITY_EVEN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002387 }
2388 if (p_priv->old_cflag != p_priv->cflag) {
2389 p_priv->old_cflag = p_priv->cflag;
2390 msg.setLcr = 0x01;
2391 }
2392
2393 if (p_priv->flow_control == flow_cts)
2394 msg.txFlowControl = TXFLOW_CTS;
2395 msg.setTxFlowControl = 0x01;
2396 msg.setRxFlowControl = 0x01;
Alan Coxdeb91682008-07-22 11:13:08 +01002397
Linus Torvalds1da177e2005-04-16 15:20:36 -07002398 msg.rxForwardingLength = 16;
Alan Coxdeb91682008-07-22 11:13:08 +01002399 msg.rxForwardingTimeout = 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002400 msg.txAckSetting = 0;
2401 msg.xonChar = 17;
2402 msg.xoffChar = 19;
2403
Alan Coxdeb91682008-07-22 11:13:08 +01002404 /* Opening port */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002405 if (reset_port == 1) {
2406 msg.portEnabled = 1;
2407 msg.rxFlush = 1;
2408 msg.txBreak = (p_priv->break_on);
2409 }
2410 /* Closing port */
Alan Coxdeb91682008-07-22 11:13:08 +01002411 else if (reset_port == 2)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002412 msg.portEnabled = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002413 /* Sending intermediate configs */
2414 else {
Alan Cox95da3102008-07-22 11:09:07 +01002415 if (port->port.count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002416 msg.portEnabled = 1;
2417 msg.txBreak = (p_priv->break_on);
2418 }
2419
Alan Coxdeb91682008-07-22 11:13:08 +01002420 /* Do handshaking outputs */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002421 msg.setRts = 0x01;
2422 msg.rts = p_priv->rts_state;
2423
2424 msg.setDtr = 0x01;
2425 msg.dtr = p_priv->dtr_state;
Alan Coxdeb91682008-07-22 11:13:08 +01002426
Linus Torvalds1da177e2005-04-16 15:20:36 -07002427 p_priv->resend_cont = 0;
Alan Coxdeb91682008-07-22 11:13:08 +01002428 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2429
Linus Torvalds1da177e2005-04-16 15:20:36 -07002430 /* send the data out the device on control endpoint */
2431 this_urb->transfer_buffer_length = sizeof(msg);
2432
2433 this_urb->dev = serial->dev;
Alan Coxdeb91682008-07-22 11:13:08 +01002434 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2435 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002436 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
Alan Coxa5b6f602008-04-08 17:16:06 +01002437 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002438}
2439
Lucy McCoy0ca12682007-05-18 12:10:41 -07002440static int keyspan_usa67_send_setup(struct usb_serial *serial,
2441 struct usb_serial_port *port,
2442 int reset_port)
2443{
2444 struct keyspan_usa67_portControlMessage msg;
2445 struct keyspan_serial_private *s_priv;
2446 struct keyspan_port_private *p_priv;
2447 const struct keyspan_device_details *d_details;
2448 struct urb *this_urb;
2449 int err, device_port;
2450
Alan Coxdeb91682008-07-22 11:13:08 +01002451 dbg("%s", __func__);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002452
2453 s_priv = usb_get_serial_data(serial);
2454 p_priv = usb_get_serial_port_data(port);
2455 d_details = s_priv->device_details;
2456
2457 this_urb = s_priv->glocont_urb;
2458
2459 /* Work out which port within the device is being setup */
2460 device_port = port->number - port->serial->minor;
2461
2462 /* Make sure we have an urb then send the message */
2463 if (this_urb == NULL) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002464 dbg("%s - oops no urb for port %d.", __func__,
Lucy McCoy0ca12682007-05-18 12:10:41 -07002465 port->number);
2466 return -1;
2467 }
2468
2469 /* Save reset port val for resend.
2470 Don't overwrite resend for open/close condition. */
2471 if ((reset_port + 1) > p_priv->resend_cont)
2472 p_priv->resend_cont = reset_port + 1;
2473 if (this_urb->status == -EINPROGRESS) {
Alan Coxdeb91682008-07-22 11:13:08 +01002474 /* dbg("%s - already writing", __func__); */
Lucy McCoy0ca12682007-05-18 12:10:41 -07002475 mdelay(5);
Alan Coxdeb91682008-07-22 11:13:08 +01002476 return -1;
Lucy McCoy0ca12682007-05-18 12:10:41 -07002477 }
2478
2479 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2480
2481 msg.port = device_port;
2482
2483 /* Only set baud rate if it's changed */
2484 if (p_priv->old_baud != p_priv->baud) {
2485 p_priv->old_baud = p_priv->baud;
2486 msg.setClocking = 0xff;
2487 if (d_details->calculate_baud_rate
2488 (p_priv->baud, d_details->baudclk, &msg.baudHi,
Alan Coxdeb91682008-07-22 11:13:08 +01002489 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2490 dbg("%s - Invalid baud rate %d requested, using 9600.",
2491 __func__, p_priv->baud);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002492 msg.baudLo = 0;
2493 msg.baudHi = 125; /* Values for 9600 baud */
2494 msg.prescaler = 10;
2495 }
2496 msg.setPrescaler = 0xff;
2497 }
2498
2499 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2500 switch (p_priv->cflag & CSIZE) {
2501 case CS5:
2502 msg.lcr |= USA_DATABITS_5;
2503 break;
2504 case CS6:
2505 msg.lcr |= USA_DATABITS_6;
2506 break;
2507 case CS7:
2508 msg.lcr |= USA_DATABITS_7;
2509 break;
2510 case CS8:
2511 msg.lcr |= USA_DATABITS_8;
2512 break;
2513 }
2514 if (p_priv->cflag & PARENB) {
2515 /* note USA_PARITY_NONE == 0 */
2516 msg.lcr |= (p_priv->cflag & PARODD)?
Alan Coxdeb91682008-07-22 11:13:08 +01002517 USA_PARITY_ODD : USA_PARITY_EVEN;
Lucy McCoy0ca12682007-05-18 12:10:41 -07002518 }
2519 msg.setLcr = 0xff;
2520
2521 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2522 msg.xonFlowControl = 0;
2523 msg.setFlowControl = 0xff;
2524 msg.forwardingLength = 16;
2525 msg.xonChar = 17;
2526 msg.xoffChar = 19;
2527
2528 if (reset_port == 1) {
2529 /* Opening port */
2530 msg._txOn = 1;
2531 msg._txOff = 0;
2532 msg.txFlush = 0;
2533 msg.txBreak = 0;
2534 msg.rxOn = 1;
2535 msg.rxOff = 0;
2536 msg.rxFlush = 1;
2537 msg.rxForward = 0;
2538 msg.returnStatus = 0;
2539 msg.resetDataToggle = 0xff;
2540 } else if (reset_port == 2) {
2541 /* Closing port */
2542 msg._txOn = 0;
2543 msg._txOff = 1;
2544 msg.txFlush = 0;
2545 msg.txBreak = 0;
2546 msg.rxOn = 0;
2547 msg.rxOff = 1;
2548 msg.rxFlush = 1;
2549 msg.rxForward = 0;
2550 msg.returnStatus = 0;
2551 msg.resetDataToggle = 0;
2552 } else {
2553 /* Sending intermediate configs */
Alan Coxdeb91682008-07-22 11:13:08 +01002554 msg._txOn = (!p_priv->break_on);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002555 msg._txOff = 0;
2556 msg.txFlush = 0;
2557 msg.txBreak = (p_priv->break_on);
2558 msg.rxOn = 0;
2559 msg.rxOff = 0;
2560 msg.rxFlush = 0;
2561 msg.rxForward = 0;
2562 msg.returnStatus = 0;
2563 msg.resetDataToggle = 0x0;
2564 }
2565
2566 /* Do handshaking outputs */
2567 msg.setTxTriState_setRts = 0xff;
2568 msg.txTriState_rts = p_priv->rts_state;
2569
2570 msg.setHskoa_setDtr = 0xff;
2571 msg.hskoa_dtr = p_priv->dtr_state;
2572
2573 p_priv->resend_cont = 0;
2574
2575 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2576
2577 /* send the data out the device on control endpoint */
2578 this_urb->transfer_buffer_length = sizeof(msg);
2579 this_urb->dev = serial->dev;
2580
2581 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2582 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002583 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__,
Lucy McCoy0ca12682007-05-18 12:10:41 -07002584 err);
Alan Coxa5b6f602008-04-08 17:16:06 +01002585 return 0;
Lucy McCoy0ca12682007-05-18 12:10:41 -07002586}
2587
Linus Torvalds1da177e2005-04-16 15:20:36 -07002588static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2589{
2590 struct usb_serial *serial = port->serial;
2591 struct keyspan_serial_private *s_priv;
2592 const struct keyspan_device_details *d_details;
2593
Alan Coxdeb91682008-07-22 11:13:08 +01002594 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002595
2596 s_priv = usb_get_serial_data(serial);
2597 d_details = s_priv->device_details;
2598
2599 switch (d_details->msg_format) {
2600 case msg_usa26:
2601 keyspan_usa26_send_setup(serial, port, reset_port);
2602 break;
2603 case msg_usa28:
2604 keyspan_usa28_send_setup(serial, port, reset_port);
2605 break;
2606 case msg_usa49:
2607 keyspan_usa49_send_setup(serial, port, reset_port);
2608 break;
2609 case msg_usa90:
2610 keyspan_usa90_send_setup(serial, port, reset_port);
2611 break;
Lucy McCoy0ca12682007-05-18 12:10:41 -07002612 case msg_usa67:
2613 keyspan_usa67_send_setup(serial, port, reset_port);
2614 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002615 }
2616}
2617
2618
2619/* Gets called by the "real" driver (ie once firmware is loaded
2620 and renumeration has taken place. */
Alan Coxdeb91682008-07-22 11:13:08 +01002621static int keyspan_startup(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002622{
2623 int i, err;
2624 struct usb_serial_port *port;
2625 struct keyspan_serial_private *s_priv;
2626 struct keyspan_port_private *p_priv;
2627 const struct keyspan_device_details *d_details;
2628
Harvey Harrison441b62c2008-03-03 16:08:34 -08002629 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002630
2631 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
Alan Coxdeb91682008-07-22 11:13:08 +01002632 if (d_details->product_id ==
2633 le16_to_cpu(serial->dev->descriptor.idProduct))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634 break;
2635 if (d_details == NULL) {
Alan Coxdeb91682008-07-22 11:13:08 +01002636 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2637 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002638 return 1;
2639 }
2640
2641 /* Setup private data for serial driver */
Eric Sesterhenn80b6ca42006-02-27 21:29:43 +01002642 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002643 if (!s_priv) {
Alan Coxdeb91682008-07-22 11:13:08 +01002644 dbg("%s - kmalloc for keyspan_serial_private failed.",
2645 __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002646 return -ENOMEM;
2647 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648
2649 s_priv->device_details = d_details;
2650 usb_set_serial_data(serial, s_priv);
2651
2652 /* Now setup per port private data */
2653 for (i = 0; i < serial->num_ports; i++) {
2654 port = serial->port[i];
Alan Coxdeb91682008-07-22 11:13:08 +01002655 p_priv = kzalloc(sizeof(struct keyspan_port_private),
2656 GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002657 if (!p_priv) {
Harvey Harrison441b62c2008-03-03 16:08:34 -08002658 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i);
Alan Coxdeb91682008-07-22 11:13:08 +01002659 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002660 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002661 p_priv->device_details = d_details;
2662 usb_set_serial_port_data(port, p_priv);
2663 }
2664
2665 keyspan_setup_urbs(serial);
2666
Lucy McCoy0ca12682007-05-18 12:10:41 -07002667 if (s_priv->instat_urb != NULL) {
2668 s_priv->instat_urb->dev = serial->dev;
2669 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2670 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002671 dbg("%s - submit instat urb failed %d", __func__,
Lucy McCoy0ca12682007-05-18 12:10:41 -07002672 err);
2673 }
2674 if (s_priv->indat_urb != NULL) {
2675 s_priv->indat_urb->dev = serial->dev;
2676 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2677 if (err != 0)
Harvey Harrison441b62c2008-03-03 16:08:34 -08002678 dbg("%s - submit indat urb failed %d", __func__,
Lucy McCoy0ca12682007-05-18 12:10:41 -07002679 err);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002680 }
Alan Coxdeb91682008-07-22 11:13:08 +01002681
Alan Coxa5b6f602008-04-08 17:16:06 +01002682 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683}
2684
Alan Coxdeb91682008-07-22 11:13:08 +01002685static void keyspan_shutdown(struct usb_serial *serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002686{
2687 int i, j;
2688 struct usb_serial_port *port;
2689 struct keyspan_serial_private *s_priv;
2690 struct keyspan_port_private *p_priv;
2691
Harvey Harrison441b62c2008-03-03 16:08:34 -08002692 dbg("%s", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002693
2694 s_priv = usb_get_serial_data(serial);
2695
2696 /* Stop reading/writing urbs */
2697 stop_urb(s_priv->instat_urb);
2698 stop_urb(s_priv->glocont_urb);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002699 stop_urb(s_priv->indat_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 for (i = 0; i < serial->num_ports; ++i) {
2701 port = serial->port[i];
2702 p_priv = usb_get_serial_port_data(port);
2703 stop_urb(p_priv->inack_urb);
2704 stop_urb(p_priv->outcont_urb);
2705 for (j = 0; j < 2; j++) {
2706 stop_urb(p_priv->in_urbs[j]);
2707 stop_urb(p_priv->out_urbs[j]);
2708 }
2709 }
2710
2711 /* Now free them */
Mariusz Kozlowski1cadc132006-11-08 15:36:34 +01002712 usb_free_urb(s_priv->instat_urb);
Lucy McCoy0ca12682007-05-18 12:10:41 -07002713 usb_free_urb(s_priv->indat_urb);
Mariusz Kozlowski1cadc132006-11-08 15:36:34 +01002714 usb_free_urb(s_priv->glocont_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002715 for (i = 0; i < serial->num_ports; ++i) {
2716 port = serial->port[i];
2717 p_priv = usb_get_serial_port_data(port);
Mariusz Kozlowski1cadc132006-11-08 15:36:34 +01002718 usb_free_urb(p_priv->inack_urb);
2719 usb_free_urb(p_priv->outcont_urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002720 for (j = 0; j < 2; j++) {
Mariusz Kozlowski1cadc132006-11-08 15:36:34 +01002721 usb_free_urb(p_priv->in_urbs[j]);
2722 usb_free_urb(p_priv->out_urbs[j]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002723 }
2724 }
2725
2726 /* dbg("Freeing serial->private."); */
2727 kfree(s_priv);
2728
2729 /* dbg("Freeing port->private."); */
2730 /* Now free per port private data */
2731 for (i = 0; i < serial->num_ports; i++) {
2732 port = serial->port[i];
2733 kfree(usb_get_serial_port_data(port));
2734 }
2735}
2736
Alan Coxdeb91682008-07-22 11:13:08 +01002737MODULE_AUTHOR(DRIVER_AUTHOR);
2738MODULE_DESCRIPTION(DRIVER_DESC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002739MODULE_LICENSE("GPL");
2740
David Woodhouse2971c572008-05-30 14:04:03 +03002741MODULE_FIRMWARE("keyspan/usa28.fw");
2742MODULE_FIRMWARE("keyspan/usa28x.fw");
2743MODULE_FIRMWARE("keyspan/usa28xa.fw");
2744MODULE_FIRMWARE("keyspan/usa28xb.fw");
2745MODULE_FIRMWARE("keyspan/usa19.fw");
2746MODULE_FIRMWARE("keyspan/usa19qi.fw");
2747MODULE_FIRMWARE("keyspan/mpr.fw");
2748MODULE_FIRMWARE("keyspan/usa19qw.fw");
2749MODULE_FIRMWARE("keyspan/usa18x.fw");
2750MODULE_FIRMWARE("keyspan/usa19w.fw");
2751MODULE_FIRMWARE("keyspan/usa49w.fw");
2752MODULE_FIRMWARE("keyspan/usa49wlc.fw");
2753
Linus Torvalds1da177e2005-04-16 15:20:36 -07002754module_param(debug, bool, S_IRUGO | S_IWUSR);
2755MODULE_PARM_DESC(debug, "Debug enabled or not");
2756