Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | Keyspan USB to Serial Converter driver | |
3 | ||
4 | (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org> | |
5 | (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | See http://misc.nu/hugh/keyspan.html for more information. | |
13 | ||
14 | Code in this driver inspired by and in a number of places taken | |
15 | from Brian Warner's original Keyspan-PDA driver. | |
16 | ||
17 | This driver has been put together with the support of Innosys, Inc. | |
18 | and Keyspan, Inc the manufacturers of the Keyspan USB-serial products. | |
19 | Thanks Guys :) | |
20 | ||
21 | Thanks to Paulus for miscellaneous tidy ups, some largish chunks | |
22 | of much nicer and/or completely new code and (perhaps most uniquely) | |
23 | having the patience to sit down and explain why and where he'd changed | |
24 | stuff. | |
25 | ||
26 | Tip 'o the hat to IBM (and previously Linuxcare :) for supporting | |
27 | staff in their work on open source projects. | |
28 | ||
29 | Change History | |
30 | ||
31 | 2003sep04 LPM (Keyspan) add support for new single port product USA19HS. | |
32 | Improve setup message handling for all devices. | |
33 | ||
34 | Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>) | |
35 | Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4) | |
36 | Linux source tree. The Linux tree lacked support for the 49WLC and | |
37 | others. The Keyspan patches didn't work with the current kernel. | |
38 | ||
39 | 2003jan30 LPM add support for the 49WLC and MPR | |
40 | ||
41 | Wed Apr 25 12:00:00 PST 2002 (Keyspan) | |
42 | Started with Hugh Blemings' code dated Jan 17, 2002. All adapters | |
43 | now supported (including QI and QW). Modified port open, port | |
44 | close, and send setup() logic to fix various data and endpoint | |
45 | synchronization bugs and device LED status bugs. Changed keyspan_ | |
46 | write_room() to accurately return transmit buffer availability. | |
47 | Changed forwardingLength from 1 to 16 for all adapters. | |
48 | ||
49 | Fri Oct 12 16:45:00 EST 2001 | |
50 | Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) | |
51 | ||
52 | Wed Apr 25 12:00:00 PST 2002 (Keyspan) | |
53 | Started with Hugh Blemings' code dated Jan 17, 2002. All adapters | |
54 | now supported (including QI and QW). Modified port open, port | |
55 | close, and send setup() logic to fix various data and endpoint | |
56 | synchronization bugs and device LED status bugs. Changed keyspan_ | |
57 | write_room() to accurately return transmit buffer availability. | |
58 | Changed forwardingLength from 1 to 16 for all adapters. | |
59 | ||
60 | Fri Oct 12 16:45:00 EST 2001 | |
61 | Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) | |
62 | ||
63 | Mon Oct 8 14:29:00 EST 2001 hugh | |
64 | Fixed bug that prevented mulitport devices operating correctly | |
65 | if they weren't the first unit attached. | |
66 | ||
67 | Sat Oct 6 12:31:21 EST 2001 hugh | |
68 | Added support for USA-28XA and -28XB, misc cleanups, break support | |
69 | for usa26 based models thanks to David Gibson. | |
70 | ||
71 | Thu May 31 11:56:42 PDT 2001 gkh | |
72 | switched from using spinlock to a semaphore | |
73 | ||
74 | (04/08/2001) gb | |
75 | Identify version on module load. | |
76 | ||
77 | (11/01/2000) Adam J. Richter | |
78 | usb_device_id table support. | |
79 | ||
80 | Tue Oct 10 23:15:33 EST 2000 Hugh | |
81 | Merged Paul's changes with my USA-49W mods. Work in progress | |
82 | still... | |
83 | ||
84 | Wed Jul 19 14:00:42 EST 2000 gkh | |
85 | Added module_init and module_exit functions to handle the fact that | |
86 | this driver is a loadable module now. | |
87 | ||
88 | Tue Jul 18 16:14:52 EST 2000 Hugh | |
89 | Basic character input/output for USA-19 now mostly works, | |
90 | fixed at 9600 baud for the moment. | |
91 | ||
92 | Sat Jul 8 11:11:48 EST 2000 Hugh | |
93 | First public release - nothing works except the firmware upload. | |
94 | Tested on PPC and x86 architectures, seems to behave... | |
95 | */ | |
96 | ||
97 | ||
98 | #include <linux/config.h> | |
99 | #include <linux/kernel.h> | |
100 | #include <linux/jiffies.h> | |
101 | #include <linux/errno.h> | |
102 | #include <linux/init.h> | |
103 | #include <linux/slab.h> | |
104 | #include <linux/tty.h> | |
105 | #include <linux/tty_driver.h> | |
106 | #include <linux/tty_flip.h> | |
107 | #include <linux/module.h> | |
108 | #include <linux/spinlock.h> | |
109 | #include <asm/uaccess.h> | |
110 | #include <linux/usb.h> | |
111 | #include "usb-serial.h" | |
112 | #include "keyspan.h" | |
113 | ||
114 | static int debug; | |
115 | ||
116 | /* | |
117 | * Version Information | |
118 | */ | |
119 | #define DRIVER_VERSION "v1.1.4" | |
120 | #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu" | |
121 | #define DRIVER_DESC "Keyspan USB to Serial Converter Driver" | |
122 | ||
123 | #define INSTAT_BUFLEN 32 | |
124 | #define GLOCONT_BUFLEN 64 | |
125 | ||
126 | /* Per device and per port private data */ | |
127 | struct keyspan_serial_private { | |
128 | const struct keyspan_device_details *device_details; | |
129 | ||
130 | struct urb *instat_urb; | |
131 | char instat_buf[INSTAT_BUFLEN]; | |
132 | ||
133 | /* XXX this one probably will need a lock */ | |
134 | struct urb *glocont_urb; | |
135 | char glocont_buf[GLOCONT_BUFLEN]; | |
136 | }; | |
137 | ||
138 | struct keyspan_port_private { | |
139 | /* Keep track of which input & output endpoints to use */ | |
140 | int in_flip; | |
141 | int out_flip; | |
142 | ||
143 | /* Keep duplicate of device details in each port | |
144 | structure as well - simplifies some of the | |
145 | callback functions etc. */ | |
146 | const struct keyspan_device_details *device_details; | |
147 | ||
148 | /* Input endpoints and buffer for this port */ | |
149 | struct urb *in_urbs[2]; | |
150 | char in_buffer[2][64]; | |
151 | /* Output endpoints and buffer for this port */ | |
152 | struct urb *out_urbs[2]; | |
153 | char out_buffer[2][64]; | |
154 | ||
155 | /* Input ack endpoint */ | |
156 | struct urb *inack_urb; | |
157 | char inack_buffer[1]; | |
158 | ||
159 | /* Output control endpoint */ | |
160 | struct urb *outcont_urb; | |
161 | char outcont_buffer[64]; | |
162 | ||
163 | /* Settings for the port */ | |
164 | int baud; | |
165 | int old_baud; | |
166 | unsigned int cflag; | |
167 | unsigned int old_cflag; | |
168 | enum {flow_none, flow_cts, flow_xon} flow_control; | |
169 | int rts_state; /* Handshaking pins (outputs) */ | |
170 | int dtr_state; | |
171 | int cts_state; /* Handshaking pins (inputs) */ | |
172 | int dsr_state; | |
173 | int dcd_state; | |
174 | int ri_state; | |
175 | int break_on; | |
176 | ||
177 | unsigned long tx_start_time[2]; | |
178 | int resend_cont; /* need to resend control packet */ | |
179 | }; | |
180 | ||
181 | ||
182 | /* Include Keyspan message headers. All current Keyspan Adapters | |
183 | make use of one of four message formats which are referred | |
184 | to as USA-26, USA-28 and USA-49, USA-90 by Keyspan and within this driver. */ | |
185 | #include "keyspan_usa26msg.h" | |
186 | #include "keyspan_usa28msg.h" | |
187 | #include "keyspan_usa49msg.h" | |
188 | #include "keyspan_usa90msg.h" | |
189 | ||
190 | ||
191 | /* Functions used by new usb-serial code. */ | |
192 | static int __init keyspan_init (void) | |
193 | { | |
194 | int retval; | |
195 | retval = usb_serial_register(&keyspan_pre_device); | |
196 | if (retval) | |
197 | goto failed_pre_device_register; | |
198 | retval = usb_serial_register(&keyspan_1port_device); | |
199 | if (retval) | |
200 | goto failed_1port_device_register; | |
201 | retval = usb_serial_register(&keyspan_2port_device); | |
202 | if (retval) | |
203 | goto failed_2port_device_register; | |
204 | retval = usb_serial_register(&keyspan_4port_device); | |
205 | if (retval) | |
206 | goto failed_4port_device_register; | |
207 | retval = usb_register(&keyspan_driver); | |
208 | if (retval) | |
209 | goto failed_usb_register; | |
210 | ||
211 | info(DRIVER_VERSION ":" DRIVER_DESC); | |
212 | ||
213 | return 0; | |
214 | failed_usb_register: | |
215 | usb_serial_deregister(&keyspan_4port_device); | |
216 | failed_4port_device_register: | |
217 | usb_serial_deregister(&keyspan_2port_device); | |
218 | failed_2port_device_register: | |
219 | usb_serial_deregister(&keyspan_1port_device); | |
220 | failed_1port_device_register: | |
221 | usb_serial_deregister(&keyspan_pre_device); | |
222 | failed_pre_device_register: | |
223 | return retval; | |
224 | } | |
225 | ||
226 | static void __exit keyspan_exit (void) | |
227 | { | |
228 | usb_deregister (&keyspan_driver); | |
229 | usb_serial_deregister (&keyspan_pre_device); | |
230 | usb_serial_deregister (&keyspan_1port_device); | |
231 | usb_serial_deregister (&keyspan_2port_device); | |
232 | usb_serial_deregister (&keyspan_4port_device); | |
233 | } | |
234 | ||
235 | module_init(keyspan_init); | |
236 | module_exit(keyspan_exit); | |
237 | ||
238 | static void keyspan_rx_throttle (struct usb_serial_port *port) | |
239 | { | |
240 | dbg("%s - port %d", __FUNCTION__, port->number); | |
241 | } | |
242 | ||
243 | ||
244 | static void keyspan_rx_unthrottle (struct usb_serial_port *port) | |
245 | { | |
246 | dbg("%s - port %d", __FUNCTION__, port->number); | |
247 | } | |
248 | ||
249 | ||
250 | static void keyspan_break_ctl (struct usb_serial_port *port, int break_state) | |
251 | { | |
252 | struct keyspan_port_private *p_priv; | |
253 | ||
254 | dbg("%s", __FUNCTION__); | |
255 | ||
256 | p_priv = usb_get_serial_port_data(port); | |
257 | ||
258 | if (break_state == -1) | |
259 | p_priv->break_on = 1; | |
260 | else | |
261 | p_priv->break_on = 0; | |
262 | ||
263 | keyspan_send_setup(port, 0); | |
264 | } | |
265 | ||
266 | ||
267 | static void keyspan_set_termios (struct usb_serial_port *port, | |
268 | struct termios *old_termios) | |
269 | { | |
270 | int baud_rate, device_port; | |
271 | struct keyspan_port_private *p_priv; | |
272 | const struct keyspan_device_details *d_details; | |
273 | unsigned int cflag; | |
274 | ||
275 | dbg("%s", __FUNCTION__); | |
276 | ||
277 | p_priv = usb_get_serial_port_data(port); | |
278 | d_details = p_priv->device_details; | |
279 | cflag = port->tty->termios->c_cflag; | |
280 | device_port = port->number - port->serial->minor; | |
281 | ||
282 | /* Baud rate calculation takes baud rate as an integer | |
283 | so other rates can be generated if desired. */ | |
284 | baud_rate = tty_get_baud_rate(port->tty); | |
285 | /* If no match or invalid, don't change */ | |
286 | if (baud_rate >= 0 | |
287 | && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, | |
288 | NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { | |
289 | /* FIXME - more to do here to ensure rate changes cleanly */ | |
290 | p_priv->baud = baud_rate; | |
291 | } | |
292 | ||
293 | /* set CTS/RTS handshake etc. */ | |
294 | p_priv->cflag = cflag; | |
295 | p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; | |
296 | ||
297 | keyspan_send_setup(port, 0); | |
298 | } | |
299 | ||
300 | static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file) | |
301 | { | |
302 | unsigned int value; | |
303 | struct keyspan_port_private *p_priv; | |
304 | ||
305 | p_priv = usb_get_serial_port_data(port); | |
306 | ||
307 | value = ((p_priv->rts_state) ? TIOCM_RTS : 0) | | |
308 | ((p_priv->dtr_state) ? TIOCM_DTR : 0) | | |
309 | ((p_priv->cts_state) ? TIOCM_CTS : 0) | | |
310 | ((p_priv->dsr_state) ? TIOCM_DSR : 0) | | |
311 | ((p_priv->dcd_state) ? TIOCM_CAR : 0) | | |
312 | ((p_priv->ri_state) ? TIOCM_RNG : 0); | |
313 | ||
314 | return value; | |
315 | } | |
316 | ||
317 | static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file, | |
318 | unsigned int set, unsigned int clear) | |
319 | { | |
320 | struct keyspan_port_private *p_priv; | |
321 | ||
322 | p_priv = usb_get_serial_port_data(port); | |
323 | ||
324 | if (set & TIOCM_RTS) | |
325 | p_priv->rts_state = 1; | |
326 | if (set & TIOCM_DTR) | |
327 | p_priv->dtr_state = 1; | |
328 | ||
329 | if (clear & TIOCM_RTS) | |
330 | p_priv->rts_state = 0; | |
331 | if (clear & TIOCM_DTR) | |
332 | p_priv->dtr_state = 0; | |
333 | keyspan_send_setup(port, 0); | |
334 | return 0; | |
335 | } | |
336 | ||
337 | static int keyspan_ioctl(struct usb_serial_port *port, struct file *file, | |
338 | unsigned int cmd, unsigned long arg) | |
339 | { | |
340 | return -ENOIOCTLCMD; | |
341 | } | |
342 | ||
343 | /* Write function is similar for the four protocols used | |
344 | with only a minor change for usa90 (usa19hs) required */ | |
345 | static int keyspan_write(struct usb_serial_port *port, | |
346 | const unsigned char *buf, int count) | |
347 | { | |
348 | struct keyspan_port_private *p_priv; | |
349 | const struct keyspan_device_details *d_details; | |
350 | int flip; | |
351 | int left, todo; | |
352 | struct urb *this_urb; | |
353 | int err, maxDataLen, dataOffset; | |
354 | ||
355 | p_priv = usb_get_serial_port_data(port); | |
356 | d_details = p_priv->device_details; | |
357 | ||
358 | if (d_details->msg_format == msg_usa90) { | |
359 | maxDataLen = 64; | |
360 | dataOffset = 0; | |
361 | } else { | |
362 | maxDataLen = 63; | |
363 | dataOffset = 1; | |
364 | } | |
365 | ||
366 | dbg("%s - for port %d (%d chars), flip=%d", | |
367 | __FUNCTION__, port->number, count, p_priv->out_flip); | |
368 | ||
369 | for (left = count; left > 0; left -= todo) { | |
370 | todo = left; | |
371 | if (todo > maxDataLen) | |
372 | todo = maxDataLen; | |
373 | ||
374 | flip = p_priv->out_flip; | |
375 | ||
376 | /* Check we have a valid urb/endpoint before we use it... */ | |
377 | if ((this_urb = p_priv->out_urbs[flip]) == NULL) { | |
378 | /* no bulk out, so return 0 bytes written */ | |
379 | dbg("%s - no output urb :(", __FUNCTION__); | |
380 | return count; | |
381 | } | |
382 | ||
383 | dbg("%s - endpoint %d flip %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), flip); | |
384 | ||
385 | if (this_urb->status == -EINPROGRESS) { | |
386 | if (this_urb->transfer_flags & URB_ASYNC_UNLINK) | |
387 | break; | |
388 | if (time_before(jiffies, p_priv->tx_start_time[flip] + 10 * HZ)) | |
389 | break; | |
390 | this_urb->transfer_flags |= URB_ASYNC_UNLINK; | |
391 | usb_unlink_urb(this_urb); | |
392 | break; | |
393 | } | |
394 | ||
395 | /* First byte in buffer is "last flag" (except for usa19hx) - unused so | |
396 | for now so set to zero */ | |
397 | ((char *)this_urb->transfer_buffer)[0] = 0; | |
398 | ||
399 | memcpy (this_urb->transfer_buffer + dataOffset, buf, todo); | |
400 | buf += todo; | |
401 | ||
402 | /* send the data out the bulk port */ | |
403 | this_urb->transfer_buffer_length = todo + dataOffset; | |
404 | ||
405 | this_urb->transfer_flags &= ~URB_ASYNC_UNLINK; | |
406 | this_urb->dev = port->serial->dev; | |
407 | if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { | |
408 | dbg("usb_submit_urb(write bulk) failed (%d)", err); | |
409 | } | |
410 | p_priv->tx_start_time[flip] = jiffies; | |
411 | ||
412 | /* Flip for next time if usa26 or usa28 interface | |
413 | (not used on usa49) */ | |
414 | p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip; | |
415 | } | |
416 | ||
417 | return count - left; | |
418 | } | |
419 | ||
420 | static void usa26_indat_callback(struct urb *urb, struct pt_regs *regs) | |
421 | { | |
422 | int i, err; | |
423 | int endpoint; | |
424 | struct usb_serial_port *port; | |
425 | struct tty_struct *tty; | |
426 | unsigned char *data = urb->transfer_buffer; | |
427 | ||
428 | dbg ("%s", __FUNCTION__); | |
429 | ||
430 | endpoint = usb_pipeendpoint(urb->pipe); | |
431 | ||
432 | if (urb->status) { | |
433 | dbg("%s - nonzero status: %x on endpoint %d.", | |
434 | __FUNCTION__, urb->status, endpoint); | |
435 | return; | |
436 | } | |
437 | ||
438 | port = (struct usb_serial_port *) urb->context; | |
439 | tty = port->tty; | |
440 | if (urb->actual_length) { | |
441 | /* 0x80 bit is error flag */ | |
442 | if ((data[0] & 0x80) == 0) { | |
443 | /* no errors on individual bytes, only possible overrun err*/ | |
444 | if (data[0] & RXERROR_OVERRUN) | |
445 | err = TTY_OVERRUN; | |
446 | else err = 0; | |
447 | for (i = 1; i < urb->actual_length ; ++i) { | |
448 | tty_insert_flip_char(tty, data[i], err); | |
449 | } | |
450 | } else { | |
451 | /* some bytes had errors, every byte has status */ | |
452 | dbg("%s - RX error!!!!", __FUNCTION__); | |
453 | for (i = 0; i + 1 < urb->actual_length; i += 2) { | |
454 | int stat = data[i], flag = 0; | |
455 | if (stat & RXERROR_OVERRUN) | |
456 | flag |= TTY_OVERRUN; | |
457 | if (stat & RXERROR_FRAMING) | |
458 | flag |= TTY_FRAME; | |
459 | if (stat & RXERROR_PARITY) | |
460 | flag |= TTY_PARITY; | |
461 | /* XXX should handle break (0x10) */ | |
462 | tty_insert_flip_char(tty, data[i+1], flag); | |
463 | } | |
464 | } | |
465 | tty_flip_buffer_push(tty); | |
466 | } | |
467 | ||
468 | /* Resubmit urb so we continue receiving */ | |
469 | urb->dev = port->serial->dev; | |
470 | if (port->open_count) | |
471 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
472 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
473 | } | |
474 | return; | |
475 | } | |
476 | ||
477 | /* Outdat handling is common for all devices */ | |
478 | static void usa2x_outdat_callback(struct urb *urb, struct pt_regs *regs) | |
479 | { | |
480 | struct usb_serial_port *port; | |
481 | struct keyspan_port_private *p_priv; | |
482 | ||
483 | port = (struct usb_serial_port *) urb->context; | |
484 | p_priv = usb_get_serial_port_data(port); | |
485 | dbg ("%s - urb %d", __FUNCTION__, urb == p_priv->out_urbs[1]); | |
486 | ||
487 | if (port->open_count) | |
488 | schedule_work(&port->work); | |
489 | } | |
490 | ||
491 | static void usa26_inack_callback(struct urb *urb, struct pt_regs *regs) | |
492 | { | |
493 | dbg ("%s", __FUNCTION__); | |
494 | ||
495 | } | |
496 | ||
497 | static void usa26_outcont_callback(struct urb *urb, struct pt_regs *regs) | |
498 | { | |
499 | struct usb_serial_port *port; | |
500 | struct keyspan_port_private *p_priv; | |
501 | ||
502 | port = (struct usb_serial_port *) urb->context; | |
503 | p_priv = usb_get_serial_port_data(port); | |
504 | ||
505 | if (p_priv->resend_cont) { | |
506 | dbg ("%s - sending setup", __FUNCTION__); | |
507 | keyspan_usa26_send_setup(port->serial, port, p_priv->resend_cont - 1); | |
508 | } | |
509 | } | |
510 | ||
511 | static void usa26_instat_callback(struct urb *urb, struct pt_regs *regs) | |
512 | { | |
513 | unsigned char *data = urb->transfer_buffer; | |
514 | struct keyspan_usa26_portStatusMessage *msg; | |
515 | struct usb_serial *serial; | |
516 | struct usb_serial_port *port; | |
517 | struct keyspan_port_private *p_priv; | |
518 | int old_dcd_state, err; | |
519 | ||
520 | serial = (struct usb_serial *) urb->context; | |
521 | ||
522 | if (urb->status) { | |
523 | dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); | |
524 | return; | |
525 | } | |
526 | if (urb->actual_length != 9) { | |
527 | dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length); | |
528 | goto exit; | |
529 | } | |
530 | ||
531 | msg = (struct keyspan_usa26_portStatusMessage *)data; | |
532 | ||
533 | #if 0 | |
534 | dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d", | |
535 | __FUNCTION__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff, | |
536 | msg->_txXoff, msg->rxEnabled, msg->controlResponse); | |
537 | #endif | |
538 | ||
539 | /* Now do something useful with the data */ | |
540 | ||
541 | ||
542 | /* Check port number from message and retrieve private data */ | |
543 | if (msg->port >= serial->num_ports) { | |
544 | dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port); | |
545 | goto exit; | |
546 | } | |
547 | port = serial->port[msg->port]; | |
548 | p_priv = usb_get_serial_port_data(port); | |
549 | ||
550 | /* Update handshaking pin state information */ | |
551 | old_dcd_state = p_priv->dcd_state; | |
552 | p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); | |
553 | p_priv->dsr_state = ((msg->dsr) ? 1 : 0); | |
554 | p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); | |
555 | p_priv->ri_state = ((msg->ri) ? 1 : 0); | |
556 | ||
557 | if (port->tty && !C_CLOCAL(port->tty) | |
558 | && old_dcd_state != p_priv->dcd_state) { | |
559 | if (old_dcd_state) | |
560 | tty_hangup(port->tty); | |
561 | /* else */ | |
562 | /* wake_up_interruptible(&p_priv->open_wait); */ | |
563 | } | |
564 | ||
565 | /* Resubmit urb so we continue receiving */ | |
566 | urb->dev = serial->dev; | |
567 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
568 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
569 | } | |
570 | exit: ; | |
571 | } | |
572 | ||
573 | static void usa26_glocont_callback(struct urb *urb, struct pt_regs *regs) | |
574 | { | |
575 | dbg ("%s", __FUNCTION__); | |
576 | ||
577 | } | |
578 | ||
579 | ||
580 | static void usa28_indat_callback(struct urb *urb, struct pt_regs *regs) | |
581 | { | |
582 | int i, err; | |
583 | struct usb_serial_port *port; | |
584 | struct tty_struct *tty; | |
585 | unsigned char *data; | |
586 | struct keyspan_port_private *p_priv; | |
587 | ||
588 | dbg ("%s", __FUNCTION__); | |
589 | ||
590 | port = (struct usb_serial_port *) urb->context; | |
591 | p_priv = usb_get_serial_port_data(port); | |
592 | data = urb->transfer_buffer; | |
593 | ||
594 | if (urb != p_priv->in_urbs[p_priv->in_flip]) | |
595 | return; | |
596 | ||
597 | do { | |
598 | if (urb->status) { | |
599 | dbg("%s - nonzero status: %x on endpoint %d.", | |
600 | __FUNCTION__, urb->status, usb_pipeendpoint(urb->pipe)); | |
601 | return; | |
602 | } | |
603 | ||
604 | port = (struct usb_serial_port *) urb->context; | |
605 | p_priv = usb_get_serial_port_data(port); | |
606 | data = urb->transfer_buffer; | |
607 | ||
608 | tty = port->tty; | |
609 | if (urb->actual_length) { | |
610 | for (i = 0; i < urb->actual_length ; ++i) { | |
611 | tty_insert_flip_char(tty, data[i], 0); | |
612 | } | |
613 | tty_flip_buffer_push(tty); | |
614 | } | |
615 | ||
616 | /* Resubmit urb so we continue receiving */ | |
617 | urb->dev = port->serial->dev; | |
618 | if (port->open_count) | |
619 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
620 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
621 | } | |
622 | p_priv->in_flip ^= 1; | |
623 | ||
624 | urb = p_priv->in_urbs[p_priv->in_flip]; | |
625 | } while (urb->status != -EINPROGRESS); | |
626 | } | |
627 | ||
628 | static void usa28_inack_callback(struct urb *urb, struct pt_regs *regs) | |
629 | { | |
630 | dbg ("%s", __FUNCTION__); | |
631 | } | |
632 | ||
633 | static void usa28_outcont_callback(struct urb *urb, struct pt_regs *regs) | |
634 | { | |
635 | struct usb_serial_port *port; | |
636 | struct keyspan_port_private *p_priv; | |
637 | ||
638 | port = (struct usb_serial_port *) urb->context; | |
639 | p_priv = usb_get_serial_port_data(port); | |
640 | ||
641 | if (p_priv->resend_cont) { | |
642 | dbg ("%s - sending setup", __FUNCTION__); | |
643 | keyspan_usa28_send_setup(port->serial, port, p_priv->resend_cont - 1); | |
644 | } | |
645 | } | |
646 | ||
647 | static void usa28_instat_callback(struct urb *urb, struct pt_regs *regs) | |
648 | { | |
649 | int err; | |
650 | unsigned char *data = urb->transfer_buffer; | |
651 | struct keyspan_usa28_portStatusMessage *msg; | |
652 | struct usb_serial *serial; | |
653 | struct usb_serial_port *port; | |
654 | struct keyspan_port_private *p_priv; | |
655 | int old_dcd_state; | |
656 | ||
657 | serial = (struct usb_serial *) urb->context; | |
658 | ||
659 | if (urb->status) { | |
660 | dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); | |
661 | return; | |
662 | } | |
663 | ||
664 | if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) { | |
665 | dbg("%s - bad length %d", __FUNCTION__, urb->actual_length); | |
666 | goto exit; | |
667 | } | |
668 | ||
669 | /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__ | |
670 | data[0], data[1], data[2], data[3], data[4], data[5], | |
671 | data[6], data[7], data[8], data[9], data[10], data[11]);*/ | |
672 | ||
673 | /* Now do something useful with the data */ | |
674 | msg = (struct keyspan_usa28_portStatusMessage *)data; | |
675 | ||
676 | ||
677 | /* Check port number from message and retrieve private data */ | |
678 | if (msg->port >= serial->num_ports) { | |
679 | dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port); | |
680 | goto exit; | |
681 | } | |
682 | port = serial->port[msg->port]; | |
683 | p_priv = usb_get_serial_port_data(port); | |
684 | ||
685 | /* Update handshaking pin state information */ | |
686 | old_dcd_state = p_priv->dcd_state; | |
687 | p_priv->cts_state = ((msg->cts) ? 1 : 0); | |
688 | p_priv->dsr_state = ((msg->dsr) ? 1 : 0); | |
689 | p_priv->dcd_state = ((msg->dcd) ? 1 : 0); | |
690 | p_priv->ri_state = ((msg->ri) ? 1 : 0); | |
691 | ||
692 | if (port->tty && !C_CLOCAL(port->tty) | |
693 | && old_dcd_state != p_priv->dcd_state) { | |
694 | if (old_dcd_state) | |
695 | tty_hangup(port->tty); | |
696 | /* else */ | |
697 | /* wake_up_interruptible(&p_priv->open_wait); */ | |
698 | } | |
699 | ||
700 | /* Resubmit urb so we continue receiving */ | |
701 | urb->dev = serial->dev; | |
702 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
703 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
704 | } | |
705 | exit: ; | |
706 | } | |
707 | ||
708 | static void usa28_glocont_callback(struct urb *urb, struct pt_regs *regs) | |
709 | { | |
710 | dbg ("%s", __FUNCTION__); | |
711 | } | |
712 | ||
713 | ||
714 | static void usa49_glocont_callback(struct urb *urb, struct pt_regs *regs) | |
715 | { | |
716 | struct usb_serial *serial; | |
717 | struct usb_serial_port *port; | |
718 | struct keyspan_port_private *p_priv; | |
719 | int i; | |
720 | ||
721 | dbg ("%s", __FUNCTION__); | |
722 | ||
723 | serial = (struct usb_serial *) urb->context; | |
724 | for (i = 0; i < serial->num_ports; ++i) { | |
725 | port = serial->port[i]; | |
726 | p_priv = usb_get_serial_port_data(port); | |
727 | ||
728 | if (p_priv->resend_cont) { | |
729 | dbg ("%s - sending setup", __FUNCTION__); | |
730 | keyspan_usa49_send_setup(serial, port, p_priv->resend_cont - 1); | |
731 | break; | |
732 | } | |
733 | } | |
734 | } | |
735 | ||
736 | /* This is actually called glostat in the Keyspan | |
737 | doco */ | |
738 | static void usa49_instat_callback(struct urb *urb, struct pt_regs *regs) | |
739 | { | |
740 | int err; | |
741 | unsigned char *data = urb->transfer_buffer; | |
742 | struct keyspan_usa49_portStatusMessage *msg; | |
743 | struct usb_serial *serial; | |
744 | struct usb_serial_port *port; | |
745 | struct keyspan_port_private *p_priv; | |
746 | int old_dcd_state; | |
747 | ||
748 | dbg ("%s", __FUNCTION__); | |
749 | ||
750 | serial = (struct usb_serial *) urb->context; | |
751 | ||
752 | if (urb->status) { | |
753 | dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); | |
754 | return; | |
755 | } | |
756 | ||
757 | if (urb->actual_length != sizeof(struct keyspan_usa49_portStatusMessage)) { | |
758 | dbg("%s - bad length %d", __FUNCTION__, urb->actual_length); | |
759 | goto exit; | |
760 | } | |
761 | ||
762 | /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__, | |
763 | data[0], data[1], data[2], data[3], data[4], data[5], | |
764 | data[6], data[7], data[8], data[9], data[10]);*/ | |
765 | ||
766 | /* Now do something useful with the data */ | |
767 | msg = (struct keyspan_usa49_portStatusMessage *)data; | |
768 | ||
769 | /* Check port number from message and retrieve private data */ | |
770 | if (msg->portNumber >= serial->num_ports) { | |
771 | dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->portNumber); | |
772 | goto exit; | |
773 | } | |
774 | port = serial->port[msg->portNumber]; | |
775 | p_priv = usb_get_serial_port_data(port); | |
776 | ||
777 | /* Update handshaking pin state information */ | |
778 | old_dcd_state = p_priv->dcd_state; | |
779 | p_priv->cts_state = ((msg->cts) ? 1 : 0); | |
780 | p_priv->dsr_state = ((msg->dsr) ? 1 : 0); | |
781 | p_priv->dcd_state = ((msg->dcd) ? 1 : 0); | |
782 | p_priv->ri_state = ((msg->ri) ? 1 : 0); | |
783 | ||
784 | if (port->tty && !C_CLOCAL(port->tty) | |
785 | && old_dcd_state != p_priv->dcd_state) { | |
786 | if (old_dcd_state) | |
787 | tty_hangup(port->tty); | |
788 | /* else */ | |
789 | /* wake_up_interruptible(&p_priv->open_wait); */ | |
790 | } | |
791 | ||
792 | /* Resubmit urb so we continue receiving */ | |
793 | urb->dev = serial->dev; | |
794 | ||
795 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
796 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
797 | } | |
798 | exit: ; | |
799 | } | |
800 | ||
801 | static void usa49_inack_callback(struct urb *urb, struct pt_regs *regs) | |
802 | { | |
803 | dbg ("%s", __FUNCTION__); | |
804 | } | |
805 | ||
806 | static void usa49_indat_callback(struct urb *urb, struct pt_regs *regs) | |
807 | { | |
808 | int i, err; | |
809 | int endpoint; | |
810 | struct usb_serial_port *port; | |
811 | struct tty_struct *tty; | |
812 | unsigned char *data = urb->transfer_buffer; | |
813 | ||
814 | dbg ("%s", __FUNCTION__); | |
815 | ||
816 | endpoint = usb_pipeendpoint(urb->pipe); | |
817 | ||
818 | if (urb->status) { | |
819 | dbg("%s - nonzero status: %x on endpoint %d.", __FUNCTION__, | |
820 | urb->status, endpoint); | |
821 | return; | |
822 | } | |
823 | ||
824 | port = (struct usb_serial_port *) urb->context; | |
825 | tty = port->tty; | |
826 | if (urb->actual_length) { | |
827 | /* 0x80 bit is error flag */ | |
828 | if ((data[0] & 0x80) == 0) { | |
829 | /* no error on any byte */ | |
830 | for (i = 1; i < urb->actual_length ; ++i) { | |
831 | tty_insert_flip_char(tty, data[i], 0); | |
832 | } | |
833 | } else { | |
834 | /* some bytes had errors, every byte has status */ | |
835 | for (i = 0; i + 1 < urb->actual_length; i += 2) { | |
836 | int stat = data[i], flag = 0; | |
837 | if (stat & RXERROR_OVERRUN) | |
838 | flag |= TTY_OVERRUN; | |
839 | if (stat & RXERROR_FRAMING) | |
840 | flag |= TTY_FRAME; | |
841 | if (stat & RXERROR_PARITY) | |
842 | flag |= TTY_PARITY; | |
843 | /* XXX should handle break (0x10) */ | |
844 | tty_insert_flip_char(tty, data[i+1], flag); | |
845 | } | |
846 | } | |
847 | tty_flip_buffer_push(tty); | |
848 | } | |
849 | ||
850 | /* Resubmit urb so we continue receiving */ | |
851 | urb->dev = port->serial->dev; | |
852 | if (port->open_count) | |
853 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
854 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
855 | } | |
856 | } | |
857 | ||
858 | /* not used, usa-49 doesn't have per-port control endpoints */ | |
859 | static void usa49_outcont_callback(struct urb *urb, struct pt_regs *regs) | |
860 | { | |
861 | dbg ("%s", __FUNCTION__); | |
862 | } | |
863 | ||
864 | static void usa90_indat_callback(struct urb *urb, struct pt_regs *regs) | |
865 | { | |
866 | int i, err; | |
867 | int endpoint; | |
868 | struct usb_serial_port *port; | |
869 | struct keyspan_port_private *p_priv; | |
870 | struct tty_struct *tty; | |
871 | unsigned char *data = urb->transfer_buffer; | |
872 | ||
873 | dbg ("%s", __FUNCTION__); | |
874 | ||
875 | endpoint = usb_pipeendpoint(urb->pipe); | |
876 | ||
877 | ||
878 | if (urb->status) { | |
879 | dbg("%s - nonzero status: %x on endpoint %d.", | |
880 | __FUNCTION__, urb->status, endpoint); | |
881 | return; | |
882 | } | |
883 | ||
884 | port = (struct usb_serial_port *) urb->context; | |
885 | p_priv = usb_get_serial_port_data(port); | |
886 | ||
887 | tty = port->tty; | |
888 | if (urb->actual_length) { | |
889 | ||
890 | /* if current mode is DMA, looks like usa28 format | |
891 | otherwise looks like usa26 data format */ | |
892 | ||
893 | if (p_priv->baud > 57600) { | |
894 | for (i = 0; i < urb->actual_length ; ++i) | |
895 | tty_insert_flip_char(tty, data[i], 0); | |
896 | } | |
897 | else { | |
898 | ||
899 | /* 0x80 bit is error flag */ | |
900 | if ((data[0] & 0x80) == 0) { | |
901 | /* no errors on individual bytes, only possible overrun err*/ | |
902 | if (data[0] & RXERROR_OVERRUN) | |
903 | err = TTY_OVERRUN; | |
904 | else err = 0; | |
905 | for (i = 1; i < urb->actual_length ; ++i) | |
906 | tty_insert_flip_char(tty, data[i], err); | |
907 | ||
908 | } | |
909 | else { | |
910 | /* some bytes had errors, every byte has status */ | |
911 | dbg("%s - RX error!!!!", __FUNCTION__); | |
912 | for (i = 0; i + 1 < urb->actual_length; i += 2) { | |
913 | int stat = data[i], flag = 0; | |
914 | if (stat & RXERROR_OVERRUN) | |
915 | flag |= TTY_OVERRUN; | |
916 | if (stat & RXERROR_FRAMING) | |
917 | flag |= TTY_FRAME; | |
918 | if (stat & RXERROR_PARITY) | |
919 | flag |= TTY_PARITY; | |
920 | /* XXX should handle break (0x10) */ | |
921 | tty_insert_flip_char(tty, data[i+1], flag); | |
922 | } | |
923 | } | |
924 | } | |
925 | tty_flip_buffer_push(tty); | |
926 | } | |
927 | ||
928 | /* Resubmit urb so we continue receiving */ | |
929 | urb->dev = port->serial->dev; | |
930 | if (port->open_count) | |
931 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
932 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
933 | } | |
934 | return; | |
935 | } | |
936 | ||
937 | ||
938 | static void usa90_instat_callback(struct urb *urb, struct pt_regs *regs) | |
939 | { | |
940 | unsigned char *data = urb->transfer_buffer; | |
941 | struct keyspan_usa90_portStatusMessage *msg; | |
942 | struct usb_serial *serial; | |
943 | struct usb_serial_port *port; | |
944 | struct keyspan_port_private *p_priv; | |
945 | int old_dcd_state, err; | |
946 | ||
947 | serial = (struct usb_serial *) urb->context; | |
948 | ||
949 | if (urb->status) { | |
950 | dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); | |
951 | return; | |
952 | } | |
953 | if (urb->actual_length < 14) { | |
954 | dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length); | |
955 | goto exit; | |
956 | } | |
957 | ||
958 | msg = (struct keyspan_usa90_portStatusMessage *)data; | |
959 | ||
960 | /* Now do something useful with the data */ | |
961 | ||
962 | port = serial->port[0]; | |
963 | p_priv = usb_get_serial_port_data(port); | |
964 | ||
965 | /* Update handshaking pin state information */ | |
966 | old_dcd_state = p_priv->dcd_state; | |
967 | p_priv->cts_state = ((msg->cts) ? 1 : 0); | |
968 | p_priv->dsr_state = ((msg->dsr) ? 1 : 0); | |
969 | p_priv->dcd_state = ((msg->dcd) ? 1 : 0); | |
970 | p_priv->ri_state = ((msg->ri) ? 1 : 0); | |
971 | ||
972 | if (port->tty && !C_CLOCAL(port->tty) | |
973 | && old_dcd_state != p_priv->dcd_state) { | |
974 | if (old_dcd_state) | |
975 | tty_hangup(port->tty); | |
976 | /* else */ | |
977 | /* wake_up_interruptible(&p_priv->open_wait); */ | |
978 | } | |
979 | ||
980 | /* Resubmit urb so we continue receiving */ | |
981 | urb->dev = serial->dev; | |
982 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) { | |
983 | dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); | |
984 | } | |
985 | exit: | |
986 | ; | |
987 | } | |
988 | ||
989 | static void usa90_outcont_callback(struct urb *urb, struct pt_regs *regs) | |
990 | { | |
991 | struct usb_serial_port *port; | |
992 | struct keyspan_port_private *p_priv; | |
993 | ||
994 | port = (struct usb_serial_port *) urb->context; | |
995 | p_priv = usb_get_serial_port_data(port); | |
996 | ||
997 | if (p_priv->resend_cont) { | |
998 | dbg ("%s - sending setup", __FUNCTION__); | |
999 | keyspan_usa90_send_setup(port->serial, port, p_priv->resend_cont - 1); | |
1000 | } | |
1001 | } | |
1002 | ||
1003 | static int keyspan_write_room (struct usb_serial_port *port) | |
1004 | { | |
1005 | struct keyspan_port_private *p_priv; | |
1006 | const struct keyspan_device_details *d_details; | |
1007 | int flip; | |
1008 | int data_len; | |
1009 | struct urb *this_urb; | |
1010 | ||
1011 | dbg("%s", __FUNCTION__); | |
1012 | p_priv = usb_get_serial_port_data(port); | |
1013 | d_details = p_priv->device_details; | |
1014 | ||
1015 | if (d_details->msg_format == msg_usa90) | |
1016 | data_len = 64; | |
1017 | else | |
1018 | data_len = 63; | |
1019 | ||
1020 | flip = p_priv->out_flip; | |
1021 | ||
1022 | /* Check both endpoints to see if any are available. */ | |
1023 | if ((this_urb = p_priv->out_urbs[flip]) != NULL) { | |
1024 | if (this_urb->status != -EINPROGRESS) | |
1025 | return (data_len); | |
1026 | flip = (flip + 1) & d_details->outdat_endp_flip; | |
1027 | if ((this_urb = p_priv->out_urbs[flip]) != NULL) | |
1028 | if (this_urb->status != -EINPROGRESS) | |
1029 | return (data_len); | |
1030 | } | |
1031 | return (0); | |
1032 | } | |
1033 | ||
1034 | ||
1035 | static int keyspan_chars_in_buffer (struct usb_serial_port *port) | |
1036 | { | |
1037 | return (0); | |
1038 | } | |
1039 | ||
1040 | ||
1041 | static int keyspan_open (struct usb_serial_port *port, struct file *filp) | |
1042 | { | |
1043 | struct keyspan_port_private *p_priv; | |
1044 | struct keyspan_serial_private *s_priv; | |
1045 | struct usb_serial *serial = port->serial; | |
1046 | const struct keyspan_device_details *d_details; | |
1047 | int i, err; | |
1048 | int baud_rate, device_port; | |
1049 | struct urb *urb; | |
1050 | unsigned int cflag; | |
1051 | ||
1052 | s_priv = usb_get_serial_data(serial); | |
1053 | p_priv = usb_get_serial_port_data(port); | |
1054 | d_details = p_priv->device_details; | |
1055 | ||
1056 | dbg("%s - port%d.", __FUNCTION__, port->number); | |
1057 | ||
1058 | /* Set some sane defaults */ | |
1059 | p_priv->rts_state = 1; | |
1060 | p_priv->dtr_state = 1; | |
1061 | p_priv->baud = 9600; | |
1062 | ||
1063 | /* force baud and lcr to be set on open */ | |
1064 | p_priv->old_baud = 0; | |
1065 | p_priv->old_cflag = 0; | |
1066 | ||
1067 | p_priv->out_flip = 0; | |
1068 | p_priv->in_flip = 0; | |
1069 | ||
1070 | /* Reset low level data toggle and start reading from endpoints */ | |
1071 | for (i = 0; i < 2; i++) { | |
1072 | if ((urb = p_priv->in_urbs[i]) == NULL) | |
1073 | continue; | |
1074 | urb->dev = serial->dev; | |
1075 | ||
1076 | /* make sure endpoint data toggle is synchronized with the device */ | |
1077 | ||
1078 | usb_clear_halt(urb->dev, urb->pipe); | |
1079 | ||
1080 | if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) { | |
1081 | dbg("%s - submit urb %d failed (%d)", __FUNCTION__, i, err); | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | /* Reset low level data toggle on out endpoints */ | |
1086 | for (i = 0; i < 2; i++) { | |
1087 | if ((urb = p_priv->out_urbs[i]) == NULL) | |
1088 | continue; | |
1089 | urb->dev = serial->dev; | |
1090 | /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */ | |
1091 | } | |
1092 | ||
1093 | /* get the terminal config for the setup message now so we don't | |
1094 | * need to send 2 of them */ | |
1095 | ||
1096 | cflag = port->tty->termios->c_cflag; | |
1097 | device_port = port->number - port->serial->minor; | |
1098 | ||
1099 | /* Baud rate calculation takes baud rate as an integer | |
1100 | so other rates can be generated if desired. */ | |
1101 | baud_rate = tty_get_baud_rate(port->tty); | |
1102 | /* If no match or invalid, leave as default */ | |
1103 | if (baud_rate >= 0 | |
1104 | && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, | |
1105 | NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { | |
1106 | p_priv->baud = baud_rate; | |
1107 | } | |
1108 | ||
1109 | /* set CTS/RTS handshake etc. */ | |
1110 | p_priv->cflag = cflag; | |
1111 | p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; | |
1112 | ||
1113 | keyspan_send_setup(port, 1); | |
1114 | //mdelay(100); | |
1115 | //keyspan_set_termios(port, NULL); | |
1116 | ||
1117 | return (0); | |
1118 | } | |
1119 | ||
1120 | static inline void stop_urb(struct urb *urb) | |
1121 | { | |
1122 | if (urb && urb->status == -EINPROGRESS) { | |
1123 | urb->transfer_flags &= ~URB_ASYNC_UNLINK; | |
1124 | usb_kill_urb(urb); | |
1125 | } | |
1126 | } | |
1127 | ||
1128 | static void keyspan_close(struct usb_serial_port *port, struct file *filp) | |
1129 | { | |
1130 | int i; | |
1131 | struct usb_serial *serial = port->serial; | |
1132 | struct keyspan_serial_private *s_priv; | |
1133 | struct keyspan_port_private *p_priv; | |
1134 | ||
1135 | dbg("%s", __FUNCTION__); | |
1136 | s_priv = usb_get_serial_data(serial); | |
1137 | p_priv = usb_get_serial_port_data(port); | |
1138 | ||
1139 | p_priv->rts_state = 0; | |
1140 | p_priv->dtr_state = 0; | |
1141 | ||
1142 | if (serial->dev) { | |
1143 | keyspan_send_setup(port, 2); | |
1144 | /* pilot-xfer seems to work best with this delay */ | |
1145 | mdelay(100); | |
1146 | // keyspan_set_termios(port, NULL); | |
1147 | } | |
1148 | ||
1149 | /*while (p_priv->outcont_urb->status == -EINPROGRESS) { | |
1150 | dbg("%s - urb in progress", __FUNCTION__); | |
1151 | }*/ | |
1152 | ||
1153 | p_priv->out_flip = 0; | |
1154 | p_priv->in_flip = 0; | |
1155 | ||
1156 | if (serial->dev) { | |
1157 | /* Stop reading/writing urbs */ | |
1158 | stop_urb(p_priv->inack_urb); | |
1159 | /* stop_urb(p_priv->outcont_urb); */ | |
1160 | for (i = 0; i < 2; i++) { | |
1161 | stop_urb(p_priv->in_urbs[i]); | |
1162 | stop_urb(p_priv->out_urbs[i]); | |
1163 | } | |
1164 | } | |
1165 | port->tty = NULL; | |
1166 | } | |
1167 | ||
1168 | ||
1169 | /* download the firmware to a pre-renumeration device */ | |
1170 | static int keyspan_fake_startup (struct usb_serial *serial) | |
1171 | { | |
1172 | int response; | |
1173 | const struct ezusb_hex_record *record; | |
1174 | char *fw_name; | |
1175 | ||
1176 | dbg("Keyspan startup version %04x product %04x", | |
1177 | le16_to_cpu(serial->dev->descriptor.bcdDevice), | |
1178 | le16_to_cpu(serial->dev->descriptor.idProduct)); | |
1179 | ||
1180 | if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) != 0x8000) { | |
1181 | dbg("Firmware already loaded. Quitting."); | |
1182 | return(1); | |
1183 | } | |
1184 | ||
1185 | /* Select firmware image on the basis of idProduct */ | |
1186 | switch (le16_to_cpu(serial->dev->descriptor.idProduct)) { | |
1187 | case keyspan_usa28_pre_product_id: | |
1188 | record = &keyspan_usa28_firmware[0]; | |
1189 | fw_name = "USA28"; | |
1190 | break; | |
1191 | ||
1192 | case keyspan_usa28x_pre_product_id: | |
1193 | record = &keyspan_usa28x_firmware[0]; | |
1194 | fw_name = "USA28X"; | |
1195 | break; | |
1196 | ||
1197 | case keyspan_usa28xa_pre_product_id: | |
1198 | record = &keyspan_usa28xa_firmware[0]; | |
1199 | fw_name = "USA28XA"; | |
1200 | break; | |
1201 | ||
1202 | case keyspan_usa28xb_pre_product_id: | |
1203 | record = &keyspan_usa28xb_firmware[0]; | |
1204 | fw_name = "USA28XB"; | |
1205 | break; | |
1206 | ||
1207 | case keyspan_usa19_pre_product_id: | |
1208 | record = &keyspan_usa19_firmware[0]; | |
1209 | fw_name = "USA19"; | |
1210 | break; | |
1211 | ||
1212 | case keyspan_usa19qi_pre_product_id: | |
1213 | record = &keyspan_usa19qi_firmware[0]; | |
1214 | fw_name = "USA19QI"; | |
1215 | break; | |
1216 | ||
1217 | case keyspan_mpr_pre_product_id: | |
1218 | record = &keyspan_mpr_firmware[0]; | |
1219 | fw_name = "MPR"; | |
1220 | break; | |
1221 | ||
1222 | case keyspan_usa19qw_pre_product_id: | |
1223 | record = &keyspan_usa19qw_firmware[0]; | |
1224 | fw_name = "USA19QI"; | |
1225 | break; | |
1226 | ||
1227 | case keyspan_usa18x_pre_product_id: | |
1228 | record = &keyspan_usa18x_firmware[0]; | |
1229 | fw_name = "USA18X"; | |
1230 | break; | |
1231 | ||
1232 | case keyspan_usa19w_pre_product_id: | |
1233 | record = &keyspan_usa19w_firmware[0]; | |
1234 | fw_name = "USA19W"; | |
1235 | break; | |
1236 | ||
1237 | case keyspan_usa49w_pre_product_id: | |
1238 | record = &keyspan_usa49w_firmware[0]; | |
1239 | fw_name = "USA49W"; | |
1240 | break; | |
1241 | ||
1242 | case keyspan_usa49wlc_pre_product_id: | |
1243 | record = &keyspan_usa49wlc_firmware[0]; | |
1244 | fw_name = "USA49WLC"; | |
1245 | break; | |
1246 | ||
1247 | default: | |
1248 | record = NULL; | |
1249 | fw_name = "Unknown"; | |
1250 | break; | |
1251 | } | |
1252 | ||
1253 | if (record == NULL) { | |
1254 | dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name); | |
1255 | return(1); | |
1256 | } | |
1257 | ||
1258 | dbg("Uploading Keyspan %s firmware.", fw_name); | |
1259 | ||
1260 | /* download the firmware image */ | |
1261 | response = ezusb_set_reset(serial, 1); | |
1262 | ||
1263 | while(record->address != 0xffff) { | |
1264 | response = ezusb_writememory(serial, record->address, | |
1265 | (unsigned char *)record->data, | |
1266 | record->data_size, 0xa0); | |
1267 | if (response < 0) { | |
1268 | dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan" | |
1269 | "firmware (%d %04X %p %d)\n", | |
1270 | response, | |
1271 | record->address, record->data, record->data_size); | |
1272 | break; | |
1273 | } | |
1274 | record++; | |
1275 | } | |
1276 | /* bring device out of reset. Renumeration will occur in a | |
1277 | moment and the new device will bind to the real driver */ | |
1278 | response = ezusb_set_reset(serial, 0); | |
1279 | ||
1280 | /* we don't want this device to have a driver assigned to it. */ | |
1281 | return (1); | |
1282 | } | |
1283 | ||
1284 | /* Helper functions used by keyspan_setup_urbs */ | |
1285 | static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint, | |
1286 | int dir, void *ctx, char *buf, int len, | |
1287 | void (*callback)(struct urb *, struct pt_regs *regs)) | |
1288 | { | |
1289 | struct urb *urb; | |
1290 | ||
1291 | if (endpoint == -1) | |
1292 | return NULL; /* endpoint not needed */ | |
1293 | ||
1294 | dbg ("%s - alloc for endpoint %d.", __FUNCTION__, endpoint); | |
1295 | urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ | |
1296 | if (urb == NULL) { | |
1297 | dbg ("%s - alloc for endpoint %d failed.", __FUNCTION__, endpoint); | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | /* Fill URB using supplied data. */ | |
1302 | usb_fill_bulk_urb(urb, serial->dev, | |
1303 | usb_sndbulkpipe(serial->dev, endpoint) | dir, | |
1304 | buf, len, callback, ctx); | |
1305 | ||
1306 | return urb; | |
1307 | } | |
1308 | ||
1309 | static struct callbacks { | |
1310 | void (*instat_callback)(struct urb *, struct pt_regs *regs); | |
1311 | void (*glocont_callback)(struct urb *, struct pt_regs *regs); | |
1312 | void (*indat_callback)(struct urb *, struct pt_regs *regs); | |
1313 | void (*outdat_callback)(struct urb *, struct pt_regs *regs); | |
1314 | void (*inack_callback)(struct urb *, struct pt_regs *regs); | |
1315 | void (*outcont_callback)(struct urb *, struct pt_regs *regs); | |
1316 | } keyspan_callbacks[] = { | |
1317 | { | |
1318 | /* msg_usa26 callbacks */ | |
1319 | .instat_callback = usa26_instat_callback, | |
1320 | .glocont_callback = usa26_glocont_callback, | |
1321 | .indat_callback = usa26_indat_callback, | |
1322 | .outdat_callback = usa2x_outdat_callback, | |
1323 | .inack_callback = usa26_inack_callback, | |
1324 | .outcont_callback = usa26_outcont_callback, | |
1325 | }, { | |
1326 | /* msg_usa28 callbacks */ | |
1327 | .instat_callback = usa28_instat_callback, | |
1328 | .glocont_callback = usa28_glocont_callback, | |
1329 | .indat_callback = usa28_indat_callback, | |
1330 | .outdat_callback = usa2x_outdat_callback, | |
1331 | .inack_callback = usa28_inack_callback, | |
1332 | .outcont_callback = usa28_outcont_callback, | |
1333 | }, { | |
1334 | /* msg_usa49 callbacks */ | |
1335 | .instat_callback = usa49_instat_callback, | |
1336 | .glocont_callback = usa49_glocont_callback, | |
1337 | .indat_callback = usa49_indat_callback, | |
1338 | .outdat_callback = usa2x_outdat_callback, | |
1339 | .inack_callback = usa49_inack_callback, | |
1340 | .outcont_callback = usa49_outcont_callback, | |
1341 | }, { | |
1342 | /* msg_usa90 callbacks */ | |
1343 | .instat_callback = usa90_instat_callback, | |
1344 | .glocont_callback = usa28_glocont_callback, | |
1345 | .indat_callback = usa90_indat_callback, | |
1346 | .outdat_callback = usa2x_outdat_callback, | |
1347 | .inack_callback = usa28_inack_callback, | |
1348 | .outcont_callback = usa90_outcont_callback, | |
1349 | } | |
1350 | }; | |
1351 | ||
1352 | /* Generic setup urbs function that uses | |
1353 | data in device_details */ | |
1354 | static void keyspan_setup_urbs(struct usb_serial *serial) | |
1355 | { | |
1356 | int i, j; | |
1357 | struct keyspan_serial_private *s_priv; | |
1358 | const struct keyspan_device_details *d_details; | |
1359 | struct usb_serial_port *port; | |
1360 | struct keyspan_port_private *p_priv; | |
1361 | struct callbacks *cback; | |
1362 | int endp; | |
1363 | ||
1364 | dbg ("%s", __FUNCTION__); | |
1365 | ||
1366 | s_priv = usb_get_serial_data(serial); | |
1367 | d_details = s_priv->device_details; | |
1368 | ||
1369 | /* Setup values for the various callback routines */ | |
1370 | cback = &keyspan_callbacks[d_details->msg_format]; | |
1371 | ||
1372 | /* Allocate and set up urbs for each one that is in use, | |
1373 | starting with instat endpoints */ | |
1374 | s_priv->instat_urb = keyspan_setup_urb | |
1375 | (serial, d_details->instat_endpoint, USB_DIR_IN, | |
1376 | serial, s_priv->instat_buf, INSTAT_BUFLEN, | |
1377 | cback->instat_callback); | |
1378 | ||
1379 | s_priv->glocont_urb = keyspan_setup_urb | |
1380 | (serial, d_details->glocont_endpoint, USB_DIR_OUT, | |
1381 | serial, s_priv->glocont_buf, GLOCONT_BUFLEN, | |
1382 | cback->glocont_callback); | |
1383 | ||
1384 | /* Setup endpoints for each port specific thing */ | |
1385 | for (i = 0; i < d_details->num_ports; i ++) { | |
1386 | port = serial->port[i]; | |
1387 | p_priv = usb_get_serial_port_data(port); | |
1388 | ||
1389 | /* Do indat endpoints first, once for each flip */ | |
1390 | endp = d_details->indat_endpoints[i]; | |
1391 | for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) { | |
1392 | p_priv->in_urbs[j] = keyspan_setup_urb | |
1393 | (serial, endp, USB_DIR_IN, port, | |
1394 | p_priv->in_buffer[j], 64, | |
1395 | cback->indat_callback); | |
1396 | } | |
1397 | for (; j < 2; ++j) | |
1398 | p_priv->in_urbs[j] = NULL; | |
1399 | ||
1400 | /* outdat endpoints also have flip */ | |
1401 | endp = d_details->outdat_endpoints[i]; | |
1402 | for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) { | |
1403 | p_priv->out_urbs[j] = keyspan_setup_urb | |
1404 | (serial, endp, USB_DIR_OUT, port, | |
1405 | p_priv->out_buffer[j], 64, | |
1406 | cback->outdat_callback); | |
1407 | } | |
1408 | for (; j < 2; ++j) | |
1409 | p_priv->out_urbs[j] = NULL; | |
1410 | ||
1411 | /* inack endpoint */ | |
1412 | p_priv->inack_urb = keyspan_setup_urb | |
1413 | (serial, d_details->inack_endpoints[i], USB_DIR_IN, | |
1414 | port, p_priv->inack_buffer, 1, cback->inack_callback); | |
1415 | ||
1416 | /* outcont endpoint */ | |
1417 | p_priv->outcont_urb = keyspan_setup_urb | |
1418 | (serial, d_details->outcont_endpoints[i], USB_DIR_OUT, | |
1419 | port, p_priv->outcont_buffer, 64, | |
1420 | cback->outcont_callback); | |
1421 | } | |
1422 | ||
1423 | } | |
1424 | ||
1425 | /* usa19 function doesn't require prescaler */ | |
1426 | static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, | |
1427 | u8 *rate_low, u8 *prescaler, int portnum) | |
1428 | { | |
1429 | u32 b16, /* baud rate times 16 (actual rate used internally) */ | |
1430 | div, /* divisor */ | |
1431 | cnt; /* inverse of divisor (programmed into 8051) */ | |
1432 | ||
1433 | dbg ("%s - %d.", __FUNCTION__, baud_rate); | |
1434 | ||
1435 | /* prevent divide by zero... */ | |
1436 | if( (b16 = (baud_rate * 16L)) == 0) { | |
1437 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1438 | } | |
1439 | ||
1440 | /* Any "standard" rate over 57k6 is marginal on the USA-19 | |
1441 | as we run out of divisor resolution. */ | |
1442 | if (baud_rate > 57600) { | |
1443 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1444 | } | |
1445 | ||
1446 | /* calculate the divisor and the counter (its inverse) */ | |
1447 | if( (div = (baudclk / b16)) == 0) { | |
1448 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1449 | } | |
1450 | else { | |
1451 | cnt = 0 - div; | |
1452 | } | |
1453 | ||
1454 | if(div > 0xffff) { | |
1455 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1456 | } | |
1457 | ||
1458 | /* return the counter values if non-null */ | |
1459 | if (rate_low) { | |
1460 | *rate_low = (u8) (cnt & 0xff); | |
1461 | } | |
1462 | if (rate_hi) { | |
1463 | *rate_hi = (u8) ((cnt >> 8) & 0xff); | |
1464 | } | |
1465 | if (rate_low && rate_hi) { | |
1466 | dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low); | |
1467 | } | |
1468 | ||
1469 | return (KEYSPAN_BAUD_RATE_OK); | |
1470 | } | |
1471 | ||
1472 | /* usa19hs function doesn't require prescaler */ | |
1473 | static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, | |
1474 | u8 *rate_low, u8 *prescaler, int portnum) | |
1475 | { | |
1476 | u32 b16, /* baud rate times 16 (actual rate used internally) */ | |
1477 | div; /* divisor */ | |
1478 | ||
1479 | dbg ("%s - %d.", __FUNCTION__, baud_rate); | |
1480 | ||
1481 | /* prevent divide by zero... */ | |
1482 | if( (b16 = (baud_rate * 16L)) == 0) | |
1483 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1484 | ||
1485 | ||
1486 | ||
1487 | /* calculate the divisor */ | |
1488 | if( (div = (baudclk / b16)) == 0) | |
1489 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1490 | ||
1491 | if(div > 0xffff) | |
1492 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1493 | ||
1494 | /* return the counter values if non-null */ | |
1495 | if (rate_low) | |
1496 | *rate_low = (u8) (div & 0xff); | |
1497 | ||
1498 | if (rate_hi) | |
1499 | *rate_hi = (u8) ((div >> 8) & 0xff); | |
1500 | ||
1501 | if (rate_low && rate_hi) | |
1502 | dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low); | |
1503 | ||
1504 | return (KEYSPAN_BAUD_RATE_OK); | |
1505 | } | |
1506 | ||
1507 | static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, | |
1508 | u8 *rate_low, u8 *prescaler, int portnum) | |
1509 | { | |
1510 | u32 b16, /* baud rate times 16 (actual rate used internally) */ | |
1511 | clk, /* clock with 13/8 prescaler */ | |
1512 | div, /* divisor using 13/8 prescaler */ | |
1513 | res, /* resulting baud rate using 13/8 prescaler */ | |
1514 | diff, /* error using 13/8 prescaler */ | |
1515 | smallest_diff; | |
1516 | u8 best_prescaler; | |
1517 | int i; | |
1518 | ||
1519 | dbg ("%s - %d.", __FUNCTION__, baud_rate); | |
1520 | ||
1521 | /* prevent divide by zero */ | |
1522 | if( (b16 = baud_rate * 16L) == 0) { | |
1523 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1524 | } | |
1525 | ||
1526 | /* Calculate prescaler by trying them all and looking | |
1527 | for best fit */ | |
1528 | ||
1529 | /* start with largest possible difference */ | |
1530 | smallest_diff = 0xffffffff; | |
1531 | ||
1532 | /* 0 is an invalid prescaler, used as a flag */ | |
1533 | best_prescaler = 0; | |
1534 | ||
1535 | for(i = 8; i <= 0xff; ++i) { | |
1536 | clk = (baudclk * 8) / (u32) i; | |
1537 | ||
1538 | if( (div = clk / b16) == 0) { | |
1539 | continue; | |
1540 | } | |
1541 | ||
1542 | res = clk / div; | |
1543 | diff= (res > b16) ? (res-b16) : (b16-res); | |
1544 | ||
1545 | if(diff < smallest_diff) { | |
1546 | best_prescaler = i; | |
1547 | smallest_diff = diff; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | if(best_prescaler == 0) { | |
1552 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1553 | } | |
1554 | ||
1555 | clk = (baudclk * 8) / (u32) best_prescaler; | |
1556 | div = clk / b16; | |
1557 | ||
1558 | /* return the divisor and prescaler if non-null */ | |
1559 | if (rate_low) { | |
1560 | *rate_low = (u8) (div & 0xff); | |
1561 | } | |
1562 | if (rate_hi) { | |
1563 | *rate_hi = (u8) ((div >> 8) & 0xff); | |
1564 | } | |
1565 | if (prescaler) { | |
1566 | *prescaler = best_prescaler; | |
1567 | /* dbg("%s - %d %d", __FUNCTION__, *prescaler, div); */ | |
1568 | } | |
1569 | return (KEYSPAN_BAUD_RATE_OK); | |
1570 | } | |
1571 | ||
1572 | /* USA-28 supports different maximum baud rates on each port */ | |
1573 | static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, | |
1574 | u8 *rate_low, u8 *prescaler, int portnum) | |
1575 | { | |
1576 | u32 b16, /* baud rate times 16 (actual rate used internally) */ | |
1577 | div, /* divisor */ | |
1578 | cnt; /* inverse of divisor (programmed into 8051) */ | |
1579 | ||
1580 | dbg ("%s - %d.", __FUNCTION__, baud_rate); | |
1581 | ||
1582 | /* prevent divide by zero */ | |
1583 | if ((b16 = baud_rate * 16L) == 0) | |
1584 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1585 | ||
1586 | /* calculate the divisor and the counter (its inverse) */ | |
1587 | if ((div = (KEYSPAN_USA28_BAUDCLK / b16)) == 0) { | |
1588 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1589 | } | |
1590 | else { | |
1591 | cnt = 0 - div; | |
1592 | } | |
1593 | ||
1594 | /* check for out of range, based on portnum, | |
1595 | and return result */ | |
1596 | if(portnum == 0) { | |
1597 | if(div > 0xffff) | |
1598 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1599 | } | |
1600 | else { | |
1601 | if(portnum == 1) { | |
1602 | if(div > 0xff) { | |
1603 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1604 | } | |
1605 | } | |
1606 | else { | |
1607 | return (KEYSPAN_INVALID_BAUD_RATE); | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | /* return the counter values if not NULL | |
1612 | (port 1 will ignore retHi) */ | |
1613 | if (rate_low) { | |
1614 | *rate_low = (u8) (cnt & 0xff); | |
1615 | } | |
1616 | if (rate_hi) { | |
1617 | *rate_hi = (u8) ((cnt >> 8) & 0xff); | |
1618 | } | |
1619 | dbg ("%s - %d OK.", __FUNCTION__, baud_rate); | |
1620 | return (KEYSPAN_BAUD_RATE_OK); | |
1621 | } | |
1622 | ||
1623 | static int keyspan_usa26_send_setup(struct usb_serial *serial, | |
1624 | struct usb_serial_port *port, | |
1625 | int reset_port) | |
1626 | { | |
1627 | struct keyspan_usa26_portControlMessage msg; | |
1628 | struct keyspan_serial_private *s_priv; | |
1629 | struct keyspan_port_private *p_priv; | |
1630 | const struct keyspan_device_details *d_details; | |
1631 | int outcont_urb; | |
1632 | struct urb *this_urb; | |
1633 | int device_port, err; | |
1634 | ||
1635 | dbg ("%s reset=%d", __FUNCTION__, reset_port); | |
1636 | ||
1637 | s_priv = usb_get_serial_data(serial); | |
1638 | p_priv = usb_get_serial_port_data(port); | |
1639 | d_details = s_priv->device_details; | |
1640 | device_port = port->number - port->serial->minor; | |
1641 | ||
1642 | outcont_urb = d_details->outcont_endpoints[port->number]; | |
1643 | this_urb = p_priv->outcont_urb; | |
1644 | ||
1645 | dbg("%s - endpoint %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe)); | |
1646 | ||
1647 | /* Make sure we have an urb then send the message */ | |
1648 | if (this_urb == NULL) { | |
1649 | dbg("%s - oops no urb.", __FUNCTION__); | |
1650 | return -1; | |
1651 | } | |
1652 | ||
1653 | /* Save reset port val for resend. | |
1654 | Don't overwrite resend for close condition. */ | |
1655 | if (p_priv->resend_cont != 3) | |
1656 | p_priv->resend_cont = reset_port + 1; | |
1657 | if (this_urb->status == -EINPROGRESS) { | |
1658 | /* dbg ("%s - already writing", __FUNCTION__); */ | |
1659 | mdelay(5); | |
1660 | return(-1); | |
1661 | } | |
1662 | ||
1663 | memset(&msg, 0, sizeof (struct keyspan_usa26_portControlMessage)); | |
1664 | ||
1665 | /* Only set baud rate if it's changed */ | |
1666 | if (p_priv->old_baud != p_priv->baud) { | |
1667 | p_priv->old_baud = p_priv->baud; | |
1668 | msg.setClocking = 0xff; | |
1669 | if (d_details->calculate_baud_rate | |
1670 | (p_priv->baud, d_details->baudclk, &msg.baudHi, | |
1671 | &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) { | |
1672 | dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__, | |
1673 | p_priv->baud); | |
1674 | msg.baudLo = 0; | |
1675 | msg.baudHi = 125; /* Values for 9600 baud */ | |
1676 | msg.prescaler = 10; | |
1677 | } | |
1678 | msg.setPrescaler = 0xff; | |
1679 | } | |
1680 | ||
1681 | msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; | |
1682 | switch (p_priv->cflag & CSIZE) { | |
1683 | case CS5: | |
1684 | msg.lcr |= USA_DATABITS_5; | |
1685 | break; | |
1686 | case CS6: | |
1687 | msg.lcr |= USA_DATABITS_6; | |
1688 | break; | |
1689 | case CS7: | |
1690 | msg.lcr |= USA_DATABITS_7; | |
1691 | break; | |
1692 | case CS8: | |
1693 | msg.lcr |= USA_DATABITS_8; | |
1694 | break; | |
1695 | } | |
1696 | if (p_priv->cflag & PARENB) { | |
1697 | /* note USA_PARITY_NONE == 0 */ | |
1698 | msg.lcr |= (p_priv->cflag & PARODD)? | |
1699 | USA_PARITY_ODD: USA_PARITY_EVEN; | |
1700 | } | |
1701 | msg.setLcr = 0xff; | |
1702 | ||
1703 | msg.ctsFlowControl = (p_priv->flow_control == flow_cts); | |
1704 | msg.xonFlowControl = 0; | |
1705 | msg.setFlowControl = 0xff; | |
1706 | msg.forwardingLength = 16; | |
1707 | msg.xonChar = 17; | |
1708 | msg.xoffChar = 19; | |
1709 | ||
1710 | /* Opening port */ | |
1711 | if (reset_port == 1) { | |
1712 | msg._txOn = 1; | |
1713 | msg._txOff = 0; | |
1714 | msg.txFlush = 0; | |
1715 | msg.txBreak = 0; | |
1716 | msg.rxOn = 1; | |
1717 | msg.rxOff = 0; | |
1718 | msg.rxFlush = 1; | |
1719 | msg.rxForward = 0; | |
1720 | msg.returnStatus = 0; | |
1721 | msg.resetDataToggle = 0xff; | |
1722 | } | |
1723 | ||
1724 | /* Closing port */ | |
1725 | else if (reset_port == 2) { | |
1726 | msg._txOn = 0; | |
1727 | msg._txOff = 1; | |
1728 | msg.txFlush = 0; | |
1729 | msg.txBreak = 0; | |
1730 | msg.rxOn = 0; | |
1731 | msg.rxOff = 1; | |
1732 | msg.rxFlush = 1; | |
1733 | msg.rxForward = 0; | |
1734 | msg.returnStatus = 0; | |
1735 | msg.resetDataToggle = 0; | |
1736 | } | |
1737 | ||
1738 | /* Sending intermediate configs */ | |
1739 | else { | |
1740 | msg._txOn = (! p_priv->break_on); | |
1741 | msg._txOff = 0; | |
1742 | msg.txFlush = 0; | |
1743 | msg.txBreak = (p_priv->break_on); | |
1744 | msg.rxOn = 0; | |
1745 | msg.rxOff = 0; | |
1746 | msg.rxFlush = 0; | |
1747 | msg.rxForward = 0; | |
1748 | msg.returnStatus = 0; | |
1749 | msg.resetDataToggle = 0x0; | |
1750 | } | |
1751 | ||
1752 | /* Do handshaking outputs */ | |
1753 | msg.setTxTriState_setRts = 0xff; | |
1754 | msg.txTriState_rts = p_priv->rts_state; | |
1755 | ||
1756 | msg.setHskoa_setDtr = 0xff; | |
1757 | msg.hskoa_dtr = p_priv->dtr_state; | |
1758 | ||
1759 | p_priv->resend_cont = 0; | |
1760 | memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); | |
1761 | ||
1762 | /* send the data out the device on control endpoint */ | |
1763 | this_urb->transfer_buffer_length = sizeof(msg); | |
1764 | ||
1765 | this_urb->dev = serial->dev; | |
1766 | if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { | |
1767 | dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err); | |
1768 | } | |
1769 | #if 0 | |
1770 | else { | |
1771 | dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__ | |
1772 | outcont_urb, this_urb->transfer_buffer_length, | |
1773 | usb_pipeendpoint(this_urb->pipe)); | |
1774 | } | |
1775 | #endif | |
1776 | ||
1777 | return (0); | |
1778 | } | |
1779 | ||
1780 | static int keyspan_usa28_send_setup(struct usb_serial *serial, | |
1781 | struct usb_serial_port *port, | |
1782 | int reset_port) | |
1783 | { | |
1784 | struct keyspan_usa28_portControlMessage msg; | |
1785 | struct keyspan_serial_private *s_priv; | |
1786 | struct keyspan_port_private *p_priv; | |
1787 | const struct keyspan_device_details *d_details; | |
1788 | struct urb *this_urb; | |
1789 | int device_port, err; | |
1790 | ||
1791 | dbg ("%s", __FUNCTION__); | |
1792 | ||
1793 | s_priv = usb_get_serial_data(serial); | |
1794 | p_priv = usb_get_serial_port_data(port); | |
1795 | d_details = s_priv->device_details; | |
1796 | device_port = port->number - port->serial->minor; | |
1797 | ||
1798 | /* only do something if we have a bulk out endpoint */ | |
1799 | if ((this_urb = p_priv->outcont_urb) == NULL) { | |
1800 | dbg("%s - oops no urb.", __FUNCTION__); | |
1801 | return -1; | |
1802 | } | |
1803 | ||
1804 | /* Save reset port val for resend. | |
1805 | Don't overwrite resend for close condition. */ | |
1806 | if (p_priv->resend_cont != 3) | |
1807 | p_priv->resend_cont = reset_port + 1; | |
1808 | if (this_urb->status == -EINPROGRESS) { | |
1809 | dbg ("%s already writing", __FUNCTION__); | |
1810 | mdelay(5); | |
1811 | return(-1); | |
1812 | } | |
1813 | ||
1814 | memset(&msg, 0, sizeof (struct keyspan_usa28_portControlMessage)); | |
1815 | ||
1816 | msg.setBaudRate = 1; | |
1817 | if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk, | |
1818 | &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE ) { | |
1819 | dbg("%s - Invalid baud rate requested %d.", __FUNCTION__, p_priv->baud); | |
1820 | msg.baudLo = 0xff; | |
1821 | msg.baudHi = 0xb2; /* Values for 9600 baud */ | |
1822 | } | |
1823 | ||
1824 | /* If parity is enabled, we must calculate it ourselves. */ | |
1825 | msg.parity = 0; /* XXX for now */ | |
1826 | ||
1827 | msg.ctsFlowControl = (p_priv->flow_control == flow_cts); | |
1828 | msg.xonFlowControl = 0; | |
1829 | ||
1830 | /* Do handshaking outputs, DTR is inverted relative to RTS */ | |
1831 | msg.rts = p_priv->rts_state; | |
1832 | msg.dtr = p_priv->dtr_state; | |
1833 | ||
1834 | msg.forwardingLength = 16; | |
1835 | msg.forwardMs = 10; | |
1836 | msg.breakThreshold = 45; | |
1837 | msg.xonChar = 17; | |
1838 | msg.xoffChar = 19; | |
1839 | ||
1840 | /*msg.returnStatus = 1; | |
1841 | msg.resetDataToggle = 0xff;*/ | |
1842 | /* Opening port */ | |
1843 | if (reset_port == 1) { | |
1844 | msg._txOn = 1; | |
1845 | msg._txOff = 0; | |
1846 | msg.txFlush = 0; | |
1847 | msg.txForceXoff = 0; | |
1848 | msg.txBreak = 0; | |
1849 | msg.rxOn = 1; | |
1850 | msg.rxOff = 0; | |
1851 | msg.rxFlush = 1; | |
1852 | msg.rxForward = 0; | |
1853 | msg.returnStatus = 0; | |
1854 | msg.resetDataToggle = 0xff; | |
1855 | } | |
1856 | /* Closing port */ | |
1857 | else if (reset_port == 2) { | |
1858 | msg._txOn = 0; | |
1859 | msg._txOff = 1; | |
1860 | msg.txFlush = 0; | |
1861 | msg.txForceXoff = 0; | |
1862 | msg.txBreak = 0; | |
1863 | msg.rxOn = 0; | |
1864 | msg.rxOff = 1; | |
1865 | msg.rxFlush = 1; | |
1866 | msg.rxForward = 0; | |
1867 | msg.returnStatus = 0; | |
1868 | msg.resetDataToggle = 0; | |
1869 | } | |
1870 | /* Sending intermediate configs */ | |
1871 | else { | |
1872 | msg._txOn = (! p_priv->break_on); | |
1873 | msg._txOff = 0; | |
1874 | msg.txFlush = 0; | |
1875 | msg.txForceXoff = 0; | |
1876 | msg.txBreak = (p_priv->break_on); | |
1877 | msg.rxOn = 0; | |
1878 | msg.rxOff = 0; | |
1879 | msg.rxFlush = 0; | |
1880 | msg.rxForward = 0; | |
1881 | msg.returnStatus = 0; | |
1882 | msg.resetDataToggle = 0x0; | |
1883 | } | |
1884 | ||
1885 | p_priv->resend_cont = 0; | |
1886 | memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); | |
1887 | ||
1888 | /* send the data out the device on control endpoint */ | |
1889 | this_urb->transfer_buffer_length = sizeof(msg); | |
1890 | ||
1891 | this_urb->dev = serial->dev; | |
1892 | if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { | |
1893 | dbg("%s - usb_submit_urb(setup) failed", __FUNCTION__); | |
1894 | } | |
1895 | #if 0 | |
1896 | else { | |
1897 | dbg("%s - usb_submit_urb(setup) OK %d bytes", __FUNCTION__, | |
1898 | this_urb->transfer_buffer_length); | |
1899 | } | |
1900 | #endif | |
1901 | ||
1902 | return (0); | |
1903 | } | |
1904 | ||
1905 | static int keyspan_usa49_send_setup(struct usb_serial *serial, | |
1906 | struct usb_serial_port *port, | |
1907 | int reset_port) | |
1908 | { | |
1909 | struct keyspan_usa49_portControlMessage msg; | |
1910 | struct keyspan_serial_private *s_priv; | |
1911 | struct keyspan_port_private *p_priv; | |
1912 | const struct keyspan_device_details *d_details; | |
1913 | int glocont_urb; | |
1914 | struct urb *this_urb; | |
1915 | int err, device_port; | |
1916 | ||
1917 | dbg ("%s", __FUNCTION__); | |
1918 | ||
1919 | s_priv = usb_get_serial_data(serial); | |
1920 | p_priv = usb_get_serial_port_data(port); | |
1921 | d_details = s_priv->device_details; | |
1922 | ||
1923 | glocont_urb = d_details->glocont_endpoint; | |
1924 | this_urb = s_priv->glocont_urb; | |
1925 | ||
1926 | /* Work out which port within the device is being setup */ | |
1927 | device_port = port->number - port->serial->minor; | |
1928 | ||
1929 | dbg("%s - endpoint %d port %d (%d)",__FUNCTION__, usb_pipeendpoint(this_urb->pipe), port->number, device_port); | |
1930 | ||
1931 | /* Make sure we have an urb then send the message */ | |
1932 | if (this_urb == NULL) { | |
1933 | dbg("%s - oops no urb for port %d.", __FUNCTION__, port->number); | |
1934 | return -1; | |
1935 | } | |
1936 | ||
1937 | /* Save reset port val for resend. | |
1938 | Don't overwrite resend for close condition. */ | |
1939 | if (p_priv->resend_cont != 3) | |
1940 | p_priv->resend_cont = reset_port + 1; | |
1941 | if (this_urb->status == -EINPROGRESS) { | |
1942 | /* dbg ("%s - already writing", __FUNCTION__); */ | |
1943 | mdelay(5); | |
1944 | return(-1); | |
1945 | } | |
1946 | ||
1947 | memset(&msg, 0, sizeof (struct keyspan_usa49_portControlMessage)); | |
1948 | ||
1949 | /*msg.portNumber = port->number;*/ | |
1950 | msg.portNumber = device_port; | |
1951 | ||
1952 | /* Only set baud rate if it's changed */ | |
1953 | if (p_priv->old_baud != p_priv->baud) { | |
1954 | p_priv->old_baud = p_priv->baud; | |
1955 | msg.setClocking = 0xff; | |
1956 | if (d_details->calculate_baud_rate | |
1957 | (p_priv->baud, d_details->baudclk, &msg.baudHi, | |
1958 | &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) { | |
1959 | dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__, | |
1960 | p_priv->baud); | |
1961 | msg.baudLo = 0; | |
1962 | msg.baudHi = 125; /* Values for 9600 baud */ | |
1963 | msg.prescaler = 10; | |
1964 | } | |
1965 | //msg.setPrescaler = 0xff; | |
1966 | } | |
1967 | ||
1968 | msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; | |
1969 | switch (p_priv->cflag & CSIZE) { | |
1970 | case CS5: | |
1971 | msg.lcr |= USA_DATABITS_5; | |
1972 | break; | |
1973 | case CS6: | |
1974 | msg.lcr |= USA_DATABITS_6; | |
1975 | break; | |
1976 | case CS7: | |
1977 | msg.lcr |= USA_DATABITS_7; | |
1978 | break; | |
1979 | case CS8: | |
1980 | msg.lcr |= USA_DATABITS_8; | |
1981 | break; | |
1982 | } | |
1983 | if (p_priv->cflag & PARENB) { | |
1984 | /* note USA_PARITY_NONE == 0 */ | |
1985 | msg.lcr |= (p_priv->cflag & PARODD)? | |
1986 | USA_PARITY_ODD: USA_PARITY_EVEN; | |
1987 | } | |
1988 | msg.setLcr = 0xff; | |
1989 | ||
1990 | msg.ctsFlowControl = (p_priv->flow_control == flow_cts); | |
1991 | msg.xonFlowControl = 0; | |
1992 | msg.setFlowControl = 0xff; | |
1993 | ||
1994 | msg.forwardingLength = 16; | |
1995 | msg.xonChar = 17; | |
1996 | msg.xoffChar = 19; | |
1997 | ||
1998 | /* Opening port */ | |
1999 | if (reset_port == 1) { | |
2000 | msg._txOn = 1; | |
2001 | msg._txOff = 0; | |
2002 | msg.txFlush = 0; | |
2003 | msg.txBreak = 0; | |
2004 | msg.rxOn = 1; | |
2005 | msg.rxOff = 0; | |
2006 | msg.rxFlush = 1; | |
2007 | msg.rxForward = 0; | |
2008 | msg.returnStatus = 0; | |
2009 | msg.resetDataToggle = 0xff; | |
2010 | msg.enablePort = 1; | |
2011 | msg.disablePort = 0; | |
2012 | } | |
2013 | /* Closing port */ | |
2014 | else if (reset_port == 2) { | |
2015 | msg._txOn = 0; | |
2016 | msg._txOff = 1; | |
2017 | msg.txFlush = 0; | |
2018 | msg.txBreak = 0; | |
2019 | msg.rxOn = 0; | |
2020 | msg.rxOff = 1; | |
2021 | msg.rxFlush = 1; | |
2022 | msg.rxForward = 0; | |
2023 | msg.returnStatus = 0; | |
2024 | msg.resetDataToggle = 0; | |
2025 | msg.enablePort = 0; | |
2026 | msg.disablePort = 1; | |
2027 | } | |
2028 | /* Sending intermediate configs */ | |
2029 | else { | |
2030 | msg._txOn = (! p_priv->break_on); | |
2031 | msg._txOff = 0; | |
2032 | msg.txFlush = 0; | |
2033 | msg.txBreak = (p_priv->break_on); | |
2034 | msg.rxOn = 0; | |
2035 | msg.rxOff = 0; | |
2036 | msg.rxFlush = 0; | |
2037 | msg.rxForward = 0; | |
2038 | msg.returnStatus = 0; | |
2039 | msg.resetDataToggle = 0x0; | |
2040 | msg.enablePort = 0; | |
2041 | msg.disablePort = 0; | |
2042 | } | |
2043 | ||
2044 | /* Do handshaking outputs */ | |
2045 | msg.setRts = 0xff; | |
2046 | msg.rts = p_priv->rts_state; | |
2047 | ||
2048 | msg.setDtr = 0xff; | |
2049 | msg.dtr = p_priv->dtr_state; | |
2050 | ||
2051 | p_priv->resend_cont = 0; | |
2052 | memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); | |
2053 | ||
2054 | /* send the data out the device on control endpoint */ | |
2055 | this_urb->transfer_buffer_length = sizeof(msg); | |
2056 | ||
2057 | this_urb->dev = serial->dev; | |
2058 | if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { | |
2059 | dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err); | |
2060 | } | |
2061 | #if 0 | |
2062 | else { | |
2063 | dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__, | |
2064 | outcont_urb, this_urb->transfer_buffer_length, | |
2065 | usb_pipeendpoint(this_urb->pipe)); | |
2066 | } | |
2067 | #endif | |
2068 | ||
2069 | return (0); | |
2070 | } | |
2071 | ||
2072 | static int keyspan_usa90_send_setup(struct usb_serial *serial, | |
2073 | struct usb_serial_port *port, | |
2074 | int reset_port) | |
2075 | { | |
2076 | struct keyspan_usa90_portControlMessage msg; | |
2077 | struct keyspan_serial_private *s_priv; | |
2078 | struct keyspan_port_private *p_priv; | |
2079 | const struct keyspan_device_details *d_details; | |
2080 | struct urb *this_urb; | |
2081 | int err; | |
2082 | u8 prescaler; | |
2083 | ||
2084 | dbg ("%s", __FUNCTION__); | |
2085 | ||
2086 | s_priv = usb_get_serial_data(serial); | |
2087 | p_priv = usb_get_serial_port_data(port); | |
2088 | d_details = s_priv->device_details; | |
2089 | ||
2090 | /* only do something if we have a bulk out endpoint */ | |
2091 | if ((this_urb = p_priv->outcont_urb) == NULL) { | |
2092 | dbg("%s - oops no urb.", __FUNCTION__); | |
2093 | return -1; | |
2094 | } | |
2095 | ||
2096 | /* Save reset port val for resend. | |
2097 | Don't overwrite resend for open/close condition. */ | |
2098 | if ((reset_port + 1) > p_priv->resend_cont) | |
2099 | p_priv->resend_cont = reset_port + 1; | |
2100 | if (this_urb->status == -EINPROGRESS) { | |
2101 | dbg ("%s already writing", __FUNCTION__); | |
2102 | mdelay(5); | |
2103 | return(-1); | |
2104 | } | |
2105 | ||
2106 | memset(&msg, 0, sizeof (struct keyspan_usa90_portControlMessage)); | |
2107 | ||
2108 | /* Only set baud rate if it's changed */ | |
2109 | if (p_priv->old_baud != p_priv->baud) { | |
2110 | p_priv->old_baud = p_priv->baud; | |
2111 | msg.setClocking = 0x01; | |
2112 | if (d_details->calculate_baud_rate | |
2113 | (p_priv->baud, d_details->baudclk, &msg.baudHi, | |
2114 | &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE ) { | |
2115 | dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__, | |
2116 | p_priv->baud); | |
2117 | p_priv->baud = 9600; | |
2118 | d_details->calculate_baud_rate (p_priv->baud, d_details->baudclk, | |
2119 | &msg.baudHi, &msg.baudLo, &prescaler, 0); | |
2120 | } | |
2121 | msg.setRxMode = 1; | |
2122 | msg.setTxMode = 1; | |
2123 | } | |
2124 | ||
2125 | /* modes must always be correctly specified */ | |
2126 | if (p_priv->baud > 57600) | |
2127 | { | |
2128 | msg.rxMode = RXMODE_DMA; | |
2129 | msg.txMode = TXMODE_DMA; | |
2130 | } | |
2131 | else | |
2132 | { | |
2133 | msg.rxMode = RXMODE_BYHAND; | |
2134 | msg.txMode = TXMODE_BYHAND; | |
2135 | } | |
2136 | ||
2137 | msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; | |
2138 | switch (p_priv->cflag & CSIZE) { | |
2139 | case CS5: | |
2140 | msg.lcr |= USA_DATABITS_5; | |
2141 | break; | |
2142 | case CS6: | |
2143 | msg.lcr |= USA_DATABITS_6; | |
2144 | break; | |
2145 | case CS7: | |
2146 | msg.lcr |= USA_DATABITS_7; | |
2147 | break; | |
2148 | case CS8: | |
2149 | msg.lcr |= USA_DATABITS_8; | |
2150 | break; | |
2151 | } | |
2152 | if (p_priv->cflag & PARENB) { | |
2153 | /* note USA_PARITY_NONE == 0 */ | |
2154 | msg.lcr |= (p_priv->cflag & PARODD)? | |
2155 | USA_PARITY_ODD: USA_PARITY_EVEN; | |
2156 | } | |
2157 | if (p_priv->old_cflag != p_priv->cflag) { | |
2158 | p_priv->old_cflag = p_priv->cflag; | |
2159 | msg.setLcr = 0x01; | |
2160 | } | |
2161 | ||
2162 | if (p_priv->flow_control == flow_cts) | |
2163 | msg.txFlowControl = TXFLOW_CTS; | |
2164 | msg.setTxFlowControl = 0x01; | |
2165 | msg.setRxFlowControl = 0x01; | |
2166 | ||
2167 | msg.rxForwardingLength = 16; | |
2168 | msg.rxForwardingTimeout = 16; | |
2169 | msg.txAckSetting = 0; | |
2170 | msg.xonChar = 17; | |
2171 | msg.xoffChar = 19; | |
2172 | ||
2173 | /* Opening port */ | |
2174 | if (reset_port == 1) { | |
2175 | msg.portEnabled = 1; | |
2176 | msg.rxFlush = 1; | |
2177 | msg.txBreak = (p_priv->break_on); | |
2178 | } | |
2179 | /* Closing port */ | |
2180 | else if (reset_port == 2) { | |
2181 | msg.portEnabled = 0; | |
2182 | } | |
2183 | /* Sending intermediate configs */ | |
2184 | else { | |
2185 | if (port->open_count) | |
2186 | msg.portEnabled = 1; | |
2187 | msg.txBreak = (p_priv->break_on); | |
2188 | } | |
2189 | ||
2190 | /* Do handshaking outputs */ | |
2191 | msg.setRts = 0x01; | |
2192 | msg.rts = p_priv->rts_state; | |
2193 | ||
2194 | msg.setDtr = 0x01; | |
2195 | msg.dtr = p_priv->dtr_state; | |
2196 | ||
2197 | p_priv->resend_cont = 0; | |
2198 | memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); | |
2199 | ||
2200 | /* send the data out the device on control endpoint */ | |
2201 | this_urb->transfer_buffer_length = sizeof(msg); | |
2202 | ||
2203 | this_urb->dev = serial->dev; | |
2204 | if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) { | |
2205 | dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err); | |
2206 | } | |
2207 | return (0); | |
2208 | } | |
2209 | ||
2210 | static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) | |
2211 | { | |
2212 | struct usb_serial *serial = port->serial; | |
2213 | struct keyspan_serial_private *s_priv; | |
2214 | const struct keyspan_device_details *d_details; | |
2215 | ||
2216 | dbg ("%s", __FUNCTION__); | |
2217 | ||
2218 | s_priv = usb_get_serial_data(serial); | |
2219 | d_details = s_priv->device_details; | |
2220 | ||
2221 | switch (d_details->msg_format) { | |
2222 | case msg_usa26: | |
2223 | keyspan_usa26_send_setup(serial, port, reset_port); | |
2224 | break; | |
2225 | case msg_usa28: | |
2226 | keyspan_usa28_send_setup(serial, port, reset_port); | |
2227 | break; | |
2228 | case msg_usa49: | |
2229 | keyspan_usa49_send_setup(serial, port, reset_port); | |
2230 | break; | |
2231 | case msg_usa90: | |
2232 | keyspan_usa90_send_setup(serial, port, reset_port); | |
2233 | break; | |
2234 | } | |
2235 | } | |
2236 | ||
2237 | ||
2238 | /* Gets called by the "real" driver (ie once firmware is loaded | |
2239 | and renumeration has taken place. */ | |
2240 | static int keyspan_startup (struct usb_serial *serial) | |
2241 | { | |
2242 | int i, err; | |
2243 | struct usb_serial_port *port; | |
2244 | struct keyspan_serial_private *s_priv; | |
2245 | struct keyspan_port_private *p_priv; | |
2246 | const struct keyspan_device_details *d_details; | |
2247 | ||
2248 | dbg("%s", __FUNCTION__); | |
2249 | ||
2250 | for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i) | |
2251 | if (d_details->product_id == le16_to_cpu(serial->dev->descriptor.idProduct)) | |
2252 | break; | |
2253 | if (d_details == NULL) { | |
2254 | dev_err(&serial->dev->dev, "%s - unknown product id %x\n", __FUNCTION__, le16_to_cpu(serial->dev->descriptor.idProduct)); | |
2255 | return 1; | |
2256 | } | |
2257 | ||
2258 | /* Setup private data for serial driver */ | |
2259 | s_priv = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); | |
2260 | if (!s_priv) { | |
2261 | dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__); | |
2262 | return -ENOMEM; | |
2263 | } | |
2264 | memset(s_priv, 0, sizeof(struct keyspan_serial_private)); | |
2265 | ||
2266 | s_priv->device_details = d_details; | |
2267 | usb_set_serial_data(serial, s_priv); | |
2268 | ||
2269 | /* Now setup per port private data */ | |
2270 | for (i = 0; i < serial->num_ports; i++) { | |
2271 | port = serial->port[i]; | |
2272 | p_priv = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL); | |
2273 | if (!p_priv) { | |
2274 | dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i); | |
2275 | return (1); | |
2276 | } | |
2277 | memset(p_priv, 0, sizeof(struct keyspan_port_private)); | |
2278 | p_priv->device_details = d_details; | |
2279 | usb_set_serial_port_data(port, p_priv); | |
2280 | } | |
2281 | ||
2282 | keyspan_setup_urbs(serial); | |
2283 | ||
2284 | s_priv->instat_urb->dev = serial->dev; | |
2285 | if ((err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL)) != 0) { | |
2286 | dbg("%s - submit instat urb failed %d", __FUNCTION__, err); | |
2287 | } | |
2288 | ||
2289 | return (0); | |
2290 | } | |
2291 | ||
2292 | static void keyspan_shutdown (struct usb_serial *serial) | |
2293 | { | |
2294 | int i, j; | |
2295 | struct usb_serial_port *port; | |
2296 | struct keyspan_serial_private *s_priv; | |
2297 | struct keyspan_port_private *p_priv; | |
2298 | ||
2299 | dbg("%s", __FUNCTION__); | |
2300 | ||
2301 | s_priv = usb_get_serial_data(serial); | |
2302 | ||
2303 | /* Stop reading/writing urbs */ | |
2304 | stop_urb(s_priv->instat_urb); | |
2305 | stop_urb(s_priv->glocont_urb); | |
2306 | for (i = 0; i < serial->num_ports; ++i) { | |
2307 | port = serial->port[i]; | |
2308 | p_priv = usb_get_serial_port_data(port); | |
2309 | stop_urb(p_priv->inack_urb); | |
2310 | stop_urb(p_priv->outcont_urb); | |
2311 | for (j = 0; j < 2; j++) { | |
2312 | stop_urb(p_priv->in_urbs[j]); | |
2313 | stop_urb(p_priv->out_urbs[j]); | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | /* Now free them */ | |
2318 | if (s_priv->instat_urb) | |
2319 | usb_free_urb(s_priv->instat_urb); | |
2320 | if (s_priv->glocont_urb) | |
2321 | usb_free_urb(s_priv->glocont_urb); | |
2322 | for (i = 0; i < serial->num_ports; ++i) { | |
2323 | port = serial->port[i]; | |
2324 | p_priv = usb_get_serial_port_data(port); | |
2325 | if (p_priv->inack_urb) | |
2326 | usb_free_urb(p_priv->inack_urb); | |
2327 | if (p_priv->outcont_urb) | |
2328 | usb_free_urb(p_priv->outcont_urb); | |
2329 | for (j = 0; j < 2; j++) { | |
2330 | if (p_priv->in_urbs[j]) | |
2331 | usb_free_urb(p_priv->in_urbs[j]); | |
2332 | if (p_priv->out_urbs[j]) | |
2333 | usb_free_urb(p_priv->out_urbs[j]); | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | /* dbg("Freeing serial->private."); */ | |
2338 | kfree(s_priv); | |
2339 | ||
2340 | /* dbg("Freeing port->private."); */ | |
2341 | /* Now free per port private data */ | |
2342 | for (i = 0; i < serial->num_ports; i++) { | |
2343 | port = serial->port[i]; | |
2344 | kfree(usb_get_serial_port_data(port)); | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | MODULE_AUTHOR( DRIVER_AUTHOR ); | |
2349 | MODULE_DESCRIPTION( DRIVER_DESC ); | |
2350 | MODULE_LICENSE("GPL"); | |
2351 | ||
2352 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
2353 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
2354 |