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Merge tag 'phy-for-4.11-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon...
[mirror_ubuntu-artful-kernel.git] / drivers / usb / serial / keyspan.c
CommitLineData
1da177e4
LT		 1/*
2 Keyspan USB to Serial Converter driver
deb91685 3
1da177e4
LT		 4 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
deb91685 6
1da177e4
LT		 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
631dd1a8 12 See http://blemings.org/hugh/keyspan.html for more information.
deb91685 13
1da177e4
LT		 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 :)
deb91685 20
1da177e4
LT		 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
deb91685
AC		 24 stuff.
25
26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
1da177e4 27 staff in their work on open source projects.
1da177e4
LT		 28*/
29
30
1da177e4
LT		 31#include <linux/kernel.h>
32#include <linux/jiffies.h>
33#include <linux/errno.h>
1da177e4
LT		 34#include <linux/slab.h>
35#include <linux/tty.h>
36#include <linux/tty_driver.h>
37#include <linux/tty_flip.h>
38#include <linux/module.h>
39#include <linux/spinlock.h>
deb91685 40#include <linux/uaccess.h>
1da177e4 41#include <linux/usb.h>
a969888c 42#include <linux/usb/serial.h>
cc183e2a 43#include <linux/usb/ezusb.h>
1da177e4 44
1da177e4
LT		 45#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
46#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
47
beabdc3c
JH		 48/* Function prototypes for Keyspan serial converter */
49static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port);
50static void keyspan_close(struct usb_serial_port *port);
51static void keyspan_dtr_rts(struct usb_serial_port *port, int on);
52static int keyspan_startup(struct usb_serial *serial);
53static void keyspan_disconnect(struct usb_serial *serial);
54static void keyspan_release(struct usb_serial *serial);
55static int keyspan_port_probe(struct usb_serial_port *port);
56static int keyspan_port_remove(struct usb_serial_port *port);
57static int keyspan_write_room(struct tty_struct *tty);
58static int keyspan_write(struct tty_struct *tty, struct usb_serial_port *port,
59 const unsigned char *buf, int count);
60static void keyspan_send_setup(struct usb_serial_port *port, int reset_port);
61static void keyspan_set_termios(struct tty_struct *tty,
62 struct usb_serial_port *port,
63 struct ktermios *old);
64static void keyspan_break_ctl(struct tty_struct *tty, int break_state);
65static int keyspan_tiocmget(struct tty_struct *tty);
66static int keyspan_tiocmset(struct tty_struct *tty, unsigned int set,
67 unsigned int clear);
68static int keyspan_fake_startup(struct usb_serial *serial);
69
70static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
71 u32 baud_rate, u32 baudclk,
72 u8 *rate_hi, u8 *rate_low,
73 u8 *prescaler, int portnum);
74static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
75 u32 baud_rate, u32 baudclk,
76 u8 *rate_hi, u8 *rate_low,
77 u8 *prescaler, int portnum);
78static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
79 u32 baud_rate, u32 baudclk,
80 u8 *rate_hi, u8 *rate_low,
81 u8 *prescaler, int portnum);
82static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
83 u32 baud_rate, u32 baudclk,
84 u8 *rate_hi, u8 *rate_low,
85 u8 *prescaler, int portnum);
86
87static int keyspan_usa28_send_setup(struct usb_serial *serial,
88 struct usb_serial_port *port,
89 int reset_port);
90static int keyspan_usa26_send_setup(struct usb_serial *serial,
91 struct usb_serial_port *port,
92 int reset_port);
93static int keyspan_usa49_send_setup(struct usb_serial *serial,
94 struct usb_serial_port *port,
95 int reset_port);
96static int keyspan_usa90_send_setup(struct usb_serial *serial,
97 struct usb_serial_port *port,
98 int reset_port);
99static int keyspan_usa67_send_setup(struct usb_serial *serial,
100 struct usb_serial_port *port,
101 int reset_port);
102
103/* Values used for baud rate calculation - device specific */
104#define KEYSPAN_INVALID_BAUD_RATE (-1)
105#define KEYSPAN_BAUD_RATE_OK (0)
106#define KEYSPAN_USA18X_BAUDCLK (12000000L) /* a guess */
107#define KEYSPAN_USA19_BAUDCLK (12000000L)
108#define KEYSPAN_USA19W_BAUDCLK (24000000L)
109#define KEYSPAN_USA19HS_BAUDCLK (14769231L)
110#define KEYSPAN_USA28_BAUDCLK (1843200L)
111#define KEYSPAN_USA28X_BAUDCLK (12000000L)
112#define KEYSPAN_USA49W_BAUDCLK (48000000L)
113
114/* Some constants used to characterise each device. */
115#define KEYSPAN_MAX_NUM_PORTS (4)
116#define KEYSPAN_MAX_FLIPS (2)
117
118/*
119 * Device info for the Keyspan serial converter, used by the overall
120 * usb-serial probe function.
121 */
122#define KEYSPAN_VENDOR_ID (0x06cd)
123
124/* Product IDs for the products supported, pre-renumeration */
125#define keyspan_usa18x_pre_product_id 0x0105
126#define keyspan_usa19_pre_product_id 0x0103
127#define keyspan_usa19qi_pre_product_id 0x010b
128#define keyspan_mpr_pre_product_id 0x011b
129#define keyspan_usa19qw_pre_product_id 0x0118
130#define keyspan_usa19w_pre_product_id 0x0106
131#define keyspan_usa28_pre_product_id 0x0101
132#define keyspan_usa28x_pre_product_id 0x0102
133#define keyspan_usa28xa_pre_product_id 0x0114
134#define keyspan_usa28xb_pre_product_id 0x0113
135#define keyspan_usa49w_pre_product_id 0x0109
136#define keyspan_usa49wlc_pre_product_id 0x011a
137
138/*
139 * Product IDs post-renumeration. Note that the 28x and 28xb have the same
140 * id's post-renumeration but behave identically so it's not an issue. As
141 * such, the 28xb is not listed in any of the device tables.
142 */
143#define keyspan_usa18x_product_id 0x0112
144#define keyspan_usa19_product_id 0x0107
145#define keyspan_usa19qi_product_id 0x010c
146#define keyspan_usa19hs_product_id 0x0121
147#define keyspan_mpr_product_id 0x011c
148#define keyspan_usa19qw_product_id 0x0119
149#define keyspan_usa19w_product_id 0x0108
150#define keyspan_usa28_product_id 0x010f
151#define keyspan_usa28x_product_id 0x0110
152#define keyspan_usa28xa_product_id 0x0115
153#define keyspan_usa28xb_product_id 0x0110
154#define keyspan_usa28xg_product_id 0x0135
155#define keyspan_usa49w_product_id 0x010a
156#define keyspan_usa49wlc_product_id 0x012a
157#define keyspan_usa49wg_product_id 0x0131
158
159struct keyspan_device_details {
160 /* product ID value */
161 int product_id;
162
163 enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format;
164
165 /* Number of physical ports */
166 int num_ports;
167
168 /* 1 if endpoint flipping used on input, 0 if not */
169 int indat_endp_flip;
170
171 /* 1 if endpoint flipping used on output, 0 if not */
172 int outdat_endp_flip;
173
174 /*
175 * Table mapping input data endpoint IDs to physical port
176 * number and flip if used
177 */
178 int indat_endpoints[KEYSPAN_MAX_NUM_PORTS];
179
180 /* Same for output endpoints */
181 int outdat_endpoints[KEYSPAN_MAX_NUM_PORTS];
182
183 /* Input acknowledge endpoints */
184 int inack_endpoints[KEYSPAN_MAX_NUM_PORTS];
185
186 /* Output control endpoints */
187 int outcont_endpoints[KEYSPAN_MAX_NUM_PORTS];
188
189 /* Endpoint used for input status */
190 int instat_endpoint;
191
192 /* Endpoint used for input data 49WG only */
193 int indat_endpoint;
194
195 /* Endpoint used for global control functions */
196 int glocont_endpoint;
197
198 int (*calculate_baud_rate)(struct usb_serial_port *port,
199 u32 baud_rate, u32 baudclk,
200 u8 *rate_hi, u8 *rate_low, u8 *prescaler,
201 int portnum);
202 u32 baudclk;
203};
204
205/*
206 * Now for each device type we setup the device detail structure with the
207 * appropriate information (provided in Keyspan's documentation)
208 */
209
210static const struct keyspan_device_details usa18x_device_details = {
211 .product_id = keyspan_usa18x_product_id,
212 .msg_format = msg_usa26,
213 .num_ports = 1,
214 .indat_endp_flip = 0,
215 .outdat_endp_flip = 1,
216 .indat_endpoints = {0x81},
217 .outdat_endpoints = {0x01},
218 .inack_endpoints = {0x85},
219 .outcont_endpoints = {0x05},
220 .instat_endpoint = 0x87,
221 .indat_endpoint = -1,
222 .glocont_endpoint = 0x07,
223 .calculate_baud_rate = keyspan_usa19w_calc_baud,
224 .baudclk = KEYSPAN_USA18X_BAUDCLK,
225};
226
227static const struct keyspan_device_details usa19_device_details = {
228 .product_id = keyspan_usa19_product_id,
229 .msg_format = msg_usa28,
230 .num_ports = 1,
231 .indat_endp_flip = 1,
232 .outdat_endp_flip = 1,
233 .indat_endpoints = {0x81},
234 .outdat_endpoints = {0x01},
235 .inack_endpoints = {0x83},
236 .outcont_endpoints = {0x03},
237 .instat_endpoint = 0x84,
238 .indat_endpoint = -1,
239 .glocont_endpoint = -1,
240 .calculate_baud_rate = keyspan_usa19_calc_baud,
241 .baudclk = KEYSPAN_USA19_BAUDCLK,
242};
243
244static const struct keyspan_device_details usa19qi_device_details = {
245 .product_id = keyspan_usa19qi_product_id,
246 .msg_format = msg_usa28,
247 .num_ports = 1,
248 .indat_endp_flip = 1,
249 .outdat_endp_flip = 1,
250 .indat_endpoints = {0x81},
251 .outdat_endpoints = {0x01},
252 .inack_endpoints = {0x83},
253 .outcont_endpoints = {0x03},
254 .instat_endpoint = 0x84,
255 .indat_endpoint = -1,
256 .glocont_endpoint = -1,
257 .calculate_baud_rate = keyspan_usa28_calc_baud,
258 .baudclk = KEYSPAN_USA19_BAUDCLK,
259};
260
261static const struct keyspan_device_details mpr_device_details = {
262 .product_id = keyspan_mpr_product_id,
263 .msg_format = msg_usa28,
264 .num_ports = 1,
265 .indat_endp_flip = 1,
266 .outdat_endp_flip = 1,
267 .indat_endpoints = {0x81},
268 .outdat_endpoints = {0x01},
269 .inack_endpoints = {0x83},
270 .outcont_endpoints = {0x03},
271 .instat_endpoint = 0x84,
272 .indat_endpoint = -1,
273 .glocont_endpoint = -1,
274 .calculate_baud_rate = keyspan_usa28_calc_baud,
275 .baudclk = KEYSPAN_USA19_BAUDCLK,
276};
277
278static const struct keyspan_device_details usa19qw_device_details = {
279 .product_id = keyspan_usa19qw_product_id,
280 .msg_format = msg_usa26,
281 .num_ports = 1,
282 .indat_endp_flip = 0,
283 .outdat_endp_flip = 1,
284 .indat_endpoints = {0x81},
285 .outdat_endpoints = {0x01},
286 .inack_endpoints = {0x85},
287 .outcont_endpoints = {0x05},
288 .instat_endpoint = 0x87,
289 .indat_endpoint = -1,
290 .glocont_endpoint = 0x07,
291 .calculate_baud_rate = keyspan_usa19w_calc_baud,
292 .baudclk = KEYSPAN_USA19W_BAUDCLK,
293};
294
295static const struct keyspan_device_details usa19w_device_details = {
296 .product_id = keyspan_usa19w_product_id,
297 .msg_format = msg_usa26,
298 .num_ports = 1,
299 .indat_endp_flip = 0,
300 .outdat_endp_flip = 1,
301 .indat_endpoints = {0x81},
302 .outdat_endpoints = {0x01},
303 .inack_endpoints = {0x85},
304 .outcont_endpoints = {0x05},
305 .instat_endpoint = 0x87,
306 .indat_endpoint = -1,
307 .glocont_endpoint = 0x07,
308 .calculate_baud_rate = keyspan_usa19w_calc_baud,
309 .baudclk = KEYSPAN_USA19W_BAUDCLK,
310};
311
312static const struct keyspan_device_details usa19hs_device_details = {
313 .product_id = keyspan_usa19hs_product_id,
314 .msg_format = msg_usa90,
315 .num_ports = 1,
316 .indat_endp_flip = 0,
317 .outdat_endp_flip = 0,
318 .indat_endpoints = {0x81},
319 .outdat_endpoints = {0x01},
320 .inack_endpoints = {-1},
321 .outcont_endpoints = {0x02},
322 .instat_endpoint = 0x82,
323 .indat_endpoint = -1,
324 .glocont_endpoint = -1,
325 .calculate_baud_rate = keyspan_usa19hs_calc_baud,
326 .baudclk = KEYSPAN_USA19HS_BAUDCLK,
327};
328
329static const struct keyspan_device_details usa28_device_details = {
330 .product_id = keyspan_usa28_product_id,
331 .msg_format = msg_usa28,
332 .num_ports = 2,
333 .indat_endp_flip = 1,
334 .outdat_endp_flip = 1,
335 .indat_endpoints = {0x81, 0x83},
336 .outdat_endpoints = {0x01, 0x03},
337 .inack_endpoints = {0x85, 0x86},
338 .outcont_endpoints = {0x05, 0x06},
339 .instat_endpoint = 0x87,
340 .indat_endpoint = -1,
341 .glocont_endpoint = 0x07,
342 .calculate_baud_rate = keyspan_usa28_calc_baud,
343 .baudclk = KEYSPAN_USA28_BAUDCLK,
344};
345
346static const struct keyspan_device_details usa28x_device_details = {
347 .product_id = keyspan_usa28x_product_id,
348 .msg_format = msg_usa26,
349 .num_ports = 2,
350 .indat_endp_flip = 0,
351 .outdat_endp_flip = 1,
352 .indat_endpoints = {0x81, 0x83},
353 .outdat_endpoints = {0x01, 0x03},
354 .inack_endpoints = {0x85, 0x86},
355 .outcont_endpoints = {0x05, 0x06},
356 .instat_endpoint = 0x87,
357 .indat_endpoint = -1,
358 .glocont_endpoint = 0x07,
359 .calculate_baud_rate = keyspan_usa19w_calc_baud,
360 .baudclk = KEYSPAN_USA28X_BAUDCLK,
361};
362
363static const struct keyspan_device_details usa28xa_device_details = {
364 .product_id = keyspan_usa28xa_product_id,
365 .msg_format = msg_usa26,
366 .num_ports = 2,
367 .indat_endp_flip = 0,
368 .outdat_endp_flip = 1,
369 .indat_endpoints = {0x81, 0x83},
370 .outdat_endpoints = {0x01, 0x03},
371 .inack_endpoints = {0x85, 0x86},
372 .outcont_endpoints = {0x05, 0x06},
373 .instat_endpoint = 0x87,
374 .indat_endpoint = -1,
375 .glocont_endpoint = 0x07,
376 .calculate_baud_rate = keyspan_usa19w_calc_baud,
377 .baudclk = KEYSPAN_USA28X_BAUDCLK,
378};
379
380static const struct keyspan_device_details usa28xg_device_details = {
381 .product_id = keyspan_usa28xg_product_id,
382 .msg_format = msg_usa67,
383 .num_ports = 2,
384 .indat_endp_flip = 0,
385 .outdat_endp_flip = 0,
386 .indat_endpoints = {0x84, 0x88},
387 .outdat_endpoints = {0x02, 0x06},
388 .inack_endpoints = {-1, -1},
389 .outcont_endpoints = {-1, -1},
390 .instat_endpoint = 0x81,
391 .indat_endpoint = -1,
392 .glocont_endpoint = 0x01,
393 .calculate_baud_rate = keyspan_usa19w_calc_baud,
394 .baudclk = KEYSPAN_USA28X_BAUDCLK,
395};
396/*
397 * We don't need a separate entry for the usa28xb as it appears as a 28x
398 * anyway.
399 */
400
401static const struct keyspan_device_details usa49w_device_details = {
402 .product_id = keyspan_usa49w_product_id,
403 .msg_format = msg_usa49,
404 .num_ports = 4,
405 .indat_endp_flip = 0,
406 .outdat_endp_flip = 0,
407 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
408 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
409 .inack_endpoints = {-1, -1, -1, -1},
410 .outcont_endpoints = {-1, -1, -1, -1},
411 .instat_endpoint = 0x87,
412 .indat_endpoint = -1,
413 .glocont_endpoint = 0x07,
414 .calculate_baud_rate = keyspan_usa19w_calc_baud,
415 .baudclk = KEYSPAN_USA49W_BAUDCLK,
416};
417
418static const struct keyspan_device_details usa49wlc_device_details = {
419 .product_id = keyspan_usa49wlc_product_id,
420 .msg_format = msg_usa49,
421 .num_ports = 4,
422 .indat_endp_flip = 0,
423 .outdat_endp_flip = 0,
424 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
425 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
426 .inack_endpoints = {-1, -1, -1, -1},
427 .outcont_endpoints = {-1, -1, -1, -1},
428 .instat_endpoint = 0x87,
429 .indat_endpoint = -1,
430 .glocont_endpoint = 0x07,
431 .calculate_baud_rate = keyspan_usa19w_calc_baud,
432 .baudclk = KEYSPAN_USA19W_BAUDCLK,
433};
434
435static const struct keyspan_device_details usa49wg_device_details = {
436 .product_id = keyspan_usa49wg_product_id,
437 .msg_format = msg_usa49,
438 .num_ports = 4,
439 .indat_endp_flip = 0,
440 .outdat_endp_flip = 0,
441 .indat_endpoints = {-1, -1, -1, -1}, /* single 'global' data in EP */
442 .outdat_endpoints = {0x01, 0x02, 0x04, 0x06},
443 .inack_endpoints = {-1, -1, -1, -1},
444 .outcont_endpoints = {-1, -1, -1, -1},
445 .instat_endpoint = 0x81,
446 .indat_endpoint = 0x88,
447 .glocont_endpoint = 0x00, /* uses control EP */
448 .calculate_baud_rate = keyspan_usa19w_calc_baud,
449 .baudclk = KEYSPAN_USA19W_BAUDCLK,
450};
451
452static const struct keyspan_device_details *keyspan_devices[] = {
453 &usa18x_device_details,
454 &usa19_device_details,
455 &usa19qi_device_details,
456 &mpr_device_details,
457 &usa19qw_device_details,
458 &usa19w_device_details,
459 &usa19hs_device_details,
460 &usa28_device_details,
461 &usa28x_device_details,
462 &usa28xa_device_details,
463 &usa28xg_device_details,
464 /* 28xb not required as it renumerates as a 28x */
465 &usa49w_device_details,
466 &usa49wlc_device_details,
467 &usa49wg_device_details,
468 NULL,
469};
470
471static const struct usb_device_id keyspan_ids_combined[] = {
472 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
473 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
474 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
475 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
476 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
477 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
478 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
479 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
480 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
481 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
482 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
483 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
484 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
485 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
486 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
487 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
488 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
489 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
490 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
491 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
492 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
493 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
494 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
495 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)},
496 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
497 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
498 { } /* Terminating entry */
499};
500
501MODULE_DEVICE_TABLE(usb, keyspan_ids_combined);
502
503/* usb_device_id table for the pre-firmware download keyspan devices */
504static const struct usb_device_id keyspan_pre_ids[] = {
505 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
506 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
507 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
508 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
509 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
510 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
511 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
512 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
513 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
514 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
515 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
516 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
517 { } /* Terminating entry */
518};
519
520static const struct usb_device_id keyspan_1port_ids[] = {
521 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
522 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
523 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
524 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
525 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
526 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
527 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
528 { } /* Terminating entry */
529};
530
531static const struct usb_device_id keyspan_2port_ids[] = {
532 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
533 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
534 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
535 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
536 { } /* Terminating entry */
537};
538
539static const struct usb_device_id keyspan_4port_ids[] = {
540 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) },
541 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
542 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
543 { } /* Terminating entry */
544};
545
1da177e4
LT		 546#define INSTAT_BUFLEN 32
547#define GLOCONT_BUFLEN 64
0ca1268e 548#define INDAT49W_BUFLEN 512
bad41a5b
JH		 549#define IN_BUFLEN 64
550#define OUT_BUFLEN 64
551#define INACK_BUFLEN 1
552#define OUTCONT_BUFLEN 64
1da177e4
LT		 553
554 /* Per device and per port private data */
555struct keyspan_serial_private {
556 const struct keyspan_device_details *device_details;
557
558 struct urb *instat_urb;
2fcd1c9b 559 char *instat_buf;
1da177e4 560
deb91685
AC		 561 /* added to support 49wg, where data from all 4 ports comes in
562 on 1 EP and high-speed supported */
0ca1268e 563 struct urb *indat_urb;
2fcd1c9b 564 char *indat_buf;
0ca1268e 565
1da177e4
LT		 566 /* XXX this one probably will need a lock */
567 struct urb *glocont_urb;
2fcd1c9b
JH		 568 char *glocont_buf;
569 char *ctrl_buf; /* for EP0 control message */
1da177e4
LT		 570};
571
572struct keyspan_port_private {
573 /* Keep track of which input & output endpoints to use */
574 int in_flip;
575 int out_flip;
576
577 /* Keep duplicate of device details in each port
578 structure as well - simplifies some of the
579 callback functions etc. */
580 const struct keyspan_device_details *device_details;
581
582 /* Input endpoints and buffer for this port */
583 struct urb *in_urbs[2];
bad41a5b 584 char *in_buffer[2];
1da177e4
LT		 585 /* Output endpoints and buffer for this port */
586 struct urb *out_urbs[2];
bad41a5b 587 char *out_buffer[2];
1da177e4
LT		 588
589 /* Input ack endpoint */
590 struct urb *inack_urb;
bad41a5b 591 char *inack_buffer;
1da177e4
LT		 592
593 /* Output control endpoint */
594 struct urb *outcont_urb;
bad41a5b 595 char *outcont_buffer;
1da177e4
LT		 596
597 /* Settings for the port */
598 int baud;
599 int old_baud;
600 unsigned int cflag;
601 unsigned int old_cflag;
602 enum {flow_none, flow_cts, flow_xon} flow_control;
603 int rts_state; /* Handshaking pins (outputs) */
604 int dtr_state;
605 int cts_state; /* Handshaking pins (inputs) */
606 int dsr_state;
607 int dcd_state;
608 int ri_state;
609 int break_on;
610
611 unsigned long tx_start_time[2];
612 int resend_cont; /* need to resend control packet */
613};
614
1da177e4 615/* Include Keyspan message headers. All current Keyspan Adapters
0ca1268e 616 make use of one of five message formats which are referred
deb91685
AC		 617 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and
618 within this driver. */
1da177e4
LT		 619#include "keyspan_usa26msg.h"
620#include "keyspan_usa28msg.h"
621#include "keyspan_usa49msg.h"
622#include "keyspan_usa90msg.h"
0ca1268e 623#include "keyspan_usa67msg.h"
deb91685 624
1da177e4 625
95da310e 626static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
1da177e4 627{
95da310e 628 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 629 struct keyspan_port_private *p_priv;
630
1da177e4
LT		 631 p_priv = usb_get_serial_port_data(port);
632
633 if (break_state == -1)
634 p_priv->break_on = 1;
635 else
636 p_priv->break_on = 0;
637
638 keyspan_send_setup(port, 0);
639}
640
641
deb91685 642static void keyspan_set_termios(struct tty_struct *tty,
95da310e 643 struct usb_serial_port *port, struct ktermios *old_termios)
1da177e4
LT		 644{
645 int baud_rate, device_port;
646 struct keyspan_port_private *p_priv;
647 const struct keyspan_device_details *d_details;
648 unsigned int cflag;
649
1da177e4
LT		 650 p_priv = usb_get_serial_port_data(port);
651 d_details = p_priv->device_details;
adc8d746 652 cflag = tty->termios.c_cflag;
1143832e 653 device_port = port->port_number;
1da177e4
LT		 654
655 /* Baud rate calculation takes baud rate as an integer
656 so other rates can be generated if desired. */
74240b07 657 baud_rate = tty_get_baud_rate(tty);
deb91685 658 /* If no match or invalid, don't change */
049c6b4e 659 if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
1da177e4
LT		 660 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
661 /* FIXME - more to do here to ensure rate changes cleanly */
cd8c5053 662 /* FIXME - calculate exact rate from divisor ? */
1da177e4 663 p_priv->baud = baud_rate;
74240b07
AC		 664 } else
665 baud_rate = tty_termios_baud_rate(old_termios);
1da177e4 666
74240b07 667 tty_encode_baud_rate(tty, baud_rate, baud_rate);
1da177e4
LT		 668 /* set CTS/RTS handshake etc. */
669 p_priv->cflag = cflag;
2b982ab1 670 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
1da177e4 671
74240b07 672 /* Mark/Space not supported */
adc8d746 673 tty->termios.c_cflag &= ~CMSPAR;
74240b07 674
1da177e4
LT		 675 keyspan_send_setup(port, 0);
676}
677
60b33c13 678static int keyspan_tiocmget(struct tty_struct *tty)
1da177e4 679{
95da310e
AC		 680 struct usb_serial_port *port = tty->driver_data;
681 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1da177e4 682 unsigned int value;
deb91685 683
1da177e4
LT		 684 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
685 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
686 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
687 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
688 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
deb91685 689 ((p_priv->ri_state) ? TIOCM_RNG : 0);
1da177e4
LT		 690
691 return value;
692}
693
20b9d177 694static int keyspan_tiocmset(struct tty_struct *tty,
1da177e4
LT		 695 unsigned int set, unsigned int clear)
696{
95da310e
AC		 697 struct usb_serial_port *port = tty->driver_data;
698 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
deb91685 699
1da177e4
LT		 700 if (set & TIOCM_RTS)
701 p_priv->rts_state = 1;
702 if (set & TIOCM_DTR)
703 p_priv->dtr_state = 1;
1da177e4
LT		 704 if (clear & TIOCM_RTS)
705 p_priv->rts_state = 0;
706 if (clear & TIOCM_DTR)
707 p_priv->dtr_state = 0;
708 keyspan_send_setup(port, 0);
709 return 0;
710}
711
95da310e
AC		 712/* Write function is similar for the four protocols used
713 with only a minor change for usa90 (usa19hs) required */
714static int keyspan_write(struct tty_struct *tty,
715 struct usb_serial_port *port, const unsigned char *buf, int count)
1da177e4
LT		 716{
717 struct keyspan_port_private *p_priv;
718 const struct keyspan_device_details *d_details;
719 int flip;
720 int left, todo;
721 struct urb *this_urb;
deb91685 722 int err, maxDataLen, dataOffset;
1da177e4
LT		 723
724 p_priv = usb_get_serial_port_data(port);
725 d_details = p_priv->device_details;
726
727 if (d_details->msg_format == msg_usa90) {
deb91685 728 maxDataLen = 64;
1da177e4
LT		 729 dataOffset = 0;
730 } else {
731 maxDataLen = 63;
732 dataOffset = 1;
733 }
deb91685 734
1143832e
GKH		 735 dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count,
736 p_priv->out_flip);
1da177e4
LT		 737
738 for (left = count; left > 0; left -= todo) {
739 todo = left;
740 if (todo > maxDataLen)
741 todo = maxDataLen;
742
743 flip = p_priv->out_flip;
deb91685 744
1da177e4 745 /* Check we have a valid urb/endpoint before we use it... */
deb91685
AC		 746 this_urb = p_priv->out_urbs[flip];
747 if (this_urb == NULL) {
1da177e4 748 /* no bulk out, so return 0 bytes written */
049c6b4e 749 dev_dbg(&port->dev, "%s - no output urb :(\n", __func__);
1da177e4
LT		 750 return count;
751 }
752
0cd782b0 753 dev_dbg(&port->dev, "%s - endpoint %x flip %d\n",
deb91685 754 __func__, usb_pipeendpoint(this_urb->pipe), flip);
1da177e4
LT		 755
756 if (this_urb->status == -EINPROGRESS) {
deb91685
AC		 757 if (time_before(jiffies,
758 p_priv->tx_start_time[flip] + 10 * HZ))
1da177e4 759 break;
1da177e4
LT		 760 usb_unlink_urb(this_urb);
761 break;
762 }
763
deb91685
AC		 764 /* First byte in buffer is "last flag" (except for usa19hx)
765 - unused so for now so set to zero */
1da177e4
LT		 766 ((char *)this_urb->transfer_buffer)[0] = 0;
767
deb91685 768 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
1da177e4
LT		 769 buf += todo;
770
771 /* send the data out the bulk port */
772 this_urb->transfer_buffer_length = todo + dataOffset;
773
deb91685
AC		 774 err = usb_submit_urb(this_urb, GFP_ATOMIC);
775 if (err != 0)
049c6b4e 776 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err);
1da177e4
LT		 777 p_priv->tx_start_time[flip] = jiffies;
778
779 /* Flip for next time if usa26 or usa28 interface
780 (not used on usa49) */
781 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
782 }
783
784 return count - left;
785}
786
7d12e780 787static void usa26_indat_callback(struct urb *urb)
1da177e4
LT		 788{
789 int i, err;
790 int endpoint;
791 struct usb_serial_port *port;
1da177e4 792 unsigned char *data = urb->transfer_buffer;
95b93454 793 int status = urb->status;
1da177e4 794
1da177e4
LT		 795 endpoint = usb_pipeendpoint(urb->pipe);
796
95b93454 797 if (status) {
0cd782b0 798 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
049c6b4e 799 __func__, status, endpoint);
1da177e4
LT		 800 return;
801 }
802
cdc97792 803 port = urb->context;
2e124b4a 804 if (urb->actual_length) {
1da177e4
LT		 805 /* 0x80 bit is error flag */
806 if ((data[0] & 0x80) == 0) {
deb91685
AC		 807 /* no errors on individual bytes, only
808 possible overrun err */
855515a6
JH		 809 if (data[0] & RXERROR_OVERRUN) {
810 tty_insert_flip_char(&port->port, 0,
811 TTY_OVERRUN);
812 }
deb91685 813 for (i = 1; i < urb->actual_length ; ++i)
855515a6
JH		 814 tty_insert_flip_char(&port->port, data[i],
815 TTY_NORMAL);
1da177e4
LT		 816 } else {
817 /* some bytes had errors, every byte has status */
049c6b4e 818 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1da177e4 819 for (i = 0; i + 1 < urb->actual_length; i += 2) {
5d1678a3
JH		 820 int stat = data[i];
821 int flag = TTY_NORMAL;
822
823 if (stat & RXERROR_OVERRUN) {
824 tty_insert_flip_char(&port->port, 0,
825 TTY_OVERRUN);
826 }
1da177e4 827 /* XXX should handle break (0x10) */
5d1678a3
JH		 828 if (stat & RXERROR_PARITY)
829 flag = TTY_PARITY;
830 else if (stat & RXERROR_FRAMING)
831 flag = TTY_FRAME;
832
92a19f9c
JS		 833 tty_insert_flip_char(&port->port, data[i+1],
834 flag);
1da177e4
LT		 835 }
836 }
2e124b4a 837 tty_flip_buffer_push(&port->port);
1da177e4 838 }
deb91685
AC		 839
840 /* Resubmit urb so we continue receiving */
1f87158e
AS		 841 err = usb_submit_urb(urb, GFP_ATOMIC);
842 if (err != 0)
049c6b4e 843 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 844}
845
deb91685 846/* Outdat handling is common for all devices */
7d12e780 847static void usa2x_outdat_callback(struct urb *urb)
1da177e4
LT		 848{
849 struct usb_serial_port *port;
850 struct keyspan_port_private *p_priv;
851
cdc97792 852 port = urb->context;
1da177e4 853 p_priv = usb_get_serial_port_data(port);
049c6b4e 854 dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]);
1da177e4 855
1f87158e 856 usb_serial_port_softint(port);
1da177e4
LT		 857}
858
7d12e780 859static void usa26_inack_callback(struct urb *urb)
1da177e4 860{
1da177e4
LT		 861}
862
7d12e780 863static void usa26_outcont_callback(struct urb *urb)
1da177e4
LT		 864{
865 struct usb_serial_port *port;
866 struct keyspan_port_private *p_priv;
867
cdc97792 868 port = urb->context;
1da177e4
LT		 869 p_priv = usb_get_serial_port_data(port);
870
871 if (p_priv->resend_cont) {
049c6b4e 872 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
deb91685
AC		 873 keyspan_usa26_send_setup(port->serial, port,
874 p_priv->resend_cont - 1);
1da177e4
LT		 875 }
876}
877
7d12e780 878static void usa26_instat_callback(struct urb *urb)
1da177e4
LT		 879{
880 unsigned char *data = urb->transfer_buffer;
881 struct keyspan_usa26_portStatusMessage *msg;
882 struct usb_serial *serial;
883 struct usb_serial_port *port;
884 struct keyspan_port_private *p_priv;
885 int old_dcd_state, err;
95b93454 886 int status = urb->status;
1da177e4 887
cdc97792 888 serial = urb->context;
1da177e4 889
95b93454 890 if (status) {
0cd782b0
JH		 891 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
892 __func__, status);
1da177e4
LT		 893 return;
894 }
895 if (urb->actual_length != 9) {
049c6b4e 896 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1da177e4
LT		 897 goto exit;
898 }
899
900 msg = (struct keyspan_usa26_portStatusMessage *)data;
901
deb91685 902 /* Check port number from message and retrieve private data */
1da177e4 903 if (msg->port >= serial->num_ports) {
049c6b4e 904 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1da177e4
LT		 905 goto exit;
906 }
907 port = serial->port[msg->port];
908 p_priv = usb_get_serial_port_data(port);
b5122236
JH		 909 if (!p_priv)
910 goto resubmit;
deb91685 911
1da177e4
LT		 912 /* Update handshaking pin state information */
913 old_dcd_state = p_priv->dcd_state;
914 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
915 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
916 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
917 p_priv->ri_state = ((msg->ri) ? 1 : 0);
918
aa27a094
JS		 919 if (old_dcd_state != p_priv->dcd_state)
920 tty_port_tty_hangup(&port->port, true);
b5122236 921resubmit:
1da177e4 922 /* Resubmit urb so we continue receiving */
deb91685
AC		 923 err = usb_submit_urb(urb, GFP_ATOMIC);
924 if (err != 0)
049c6b4e 925 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 926exit: ;
927}
928
7d12e780 929static void usa26_glocont_callback(struct urb *urb)
1da177e4 930{
1da177e4
LT		 931}
932
933
7d12e780 934static void usa28_indat_callback(struct urb *urb)
1da177e4 935{
f035a8ad 936 int err;
1da177e4 937 struct usb_serial_port *port;
1da177e4
LT		 938 unsigned char *data;
939 struct keyspan_port_private *p_priv;
95b93454 940 int status = urb->status;
1da177e4 941
cdc97792 942 port = urb->context;
1da177e4
LT		 943 p_priv = usb_get_serial_port_data(port);
944 data = urb->transfer_buffer;
945
946 if (urb != p_priv->in_urbs[p_priv->in_flip])
947 return;
948
949 do {
95b93454 950 if (status) {
0cd782b0 951 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
049c6b4e 952 __func__, status, usb_pipeendpoint(urb->pipe));
1da177e4
LT		 953 return;
954 }
955
cdc97792 956 port = urb->context;
1da177e4
LT		 957 p_priv = usb_get_serial_port_data(port);
958 data = urb->transfer_buffer;
959
2e124b4a 960 if (urb->actual_length) {
05c7cd39
JS		 961 tty_insert_flip_string(&port->port, data,
962 urb->actual_length);
2e124b4a 963 tty_flip_buffer_push(&port->port);
1da177e4
LT		 964 }
965
966 /* Resubmit urb so we continue receiving */
1f87158e
AS		 967 err = usb_submit_urb(urb, GFP_ATOMIC);
968 if (err != 0)
049c6b4e 969 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
1f87158e 970 __func__, err);
1da177e4
LT		 971 p_priv->in_flip ^= 1;
972
973 urb = p_priv->in_urbs[p_priv->in_flip];
974 } while (urb->status != -EINPROGRESS);
975}
976
7d12e780 977static void usa28_inack_callback(struct urb *urb)
1da177e4 978{
1da177e4
LT		 979}
980
7d12e780 981static void usa28_outcont_callback(struct urb *urb)
1da177e4
LT		 982{
983 struct usb_serial_port *port;
984 struct keyspan_port_private *p_priv;
985
cdc97792 986 port = urb->context;
1da177e4
LT		 987 p_priv = usb_get_serial_port_data(port);
988
989 if (p_priv->resend_cont) {
049c6b4e 990 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
deb91685
AC		 991 keyspan_usa28_send_setup(port->serial, port,
992 p_priv->resend_cont - 1);
1da177e4
LT		 993 }
994}
995
7d12e780 996static void usa28_instat_callback(struct urb *urb)
1da177e4
LT		 997{
998 int err;
999 unsigned char *data = urb->transfer_buffer;
1000 struct keyspan_usa28_portStatusMessage *msg;
1001 struct usb_serial *serial;
1002 struct usb_serial_port *port;
1003 struct keyspan_port_private *p_priv;
1004 int old_dcd_state;
95b93454 1005 int status = urb->status;
1da177e4 1006
cdc97792 1007 serial = urb->context;
1da177e4 1008
95b93454 1009 if (status) {
0cd782b0
JH		 1010 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1011 __func__, status);
1da177e4
LT		 1012 return;
1013 }
1014
1015 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
049c6b4e 1016 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1da177e4
LT		 1017 goto exit;
1018 }
1019
deb91685 1020 msg = (struct keyspan_usa28_portStatusMessage *)data;
1da177e4 1021
deb91685 1022 /* Check port number from message and retrieve private data */
1da177e4 1023 if (msg->port >= serial->num_ports) {
049c6b4e 1024 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1da177e4
LT		 1025 goto exit;
1026 }
1027 port = serial->port[msg->port];
1028 p_priv = usb_get_serial_port_data(port);
b5122236
JH		 1029 if (!p_priv)
1030 goto resubmit;
deb91685 1031
1da177e4
LT		 1032 /* Update handshaking pin state information */
1033 old_dcd_state = p_priv->dcd_state;
1034 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1035 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1036 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1037 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1038
aa27a094
JS		 1039 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1040 tty_port_tty_hangup(&port->port, true);
b5122236 1041resubmit:
1da177e4 1042 /* Resubmit urb so we continue receiving */
deb91685
AC		 1043 err = usb_submit_urb(urb, GFP_ATOMIC);
1044 if (err != 0)
049c6b4e 1045 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 1046exit: ;
1047}
1048
7d12e780 1049static void usa28_glocont_callback(struct urb *urb)
1da177e4 1050{
1da177e4
LT		 1051}
1052
1053
7d12e780 1054static void usa49_glocont_callback(struct urb *urb)
1da177e4
LT		 1055{
1056 struct usb_serial *serial;
1057 struct usb_serial_port *port;
1058 struct keyspan_port_private *p_priv;
1059 int i;
1060
cdc97792 1061 serial = urb->context;
1da177e4
LT		 1062 for (i = 0; i < serial->num_ports; ++i) {
1063 port = serial->port[i];
1064 p_priv = usb_get_serial_port_data(port);
1065
1066 if (p_priv->resend_cont) {
049c6b4e 1067 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
deb91685
AC		 1068 keyspan_usa49_send_setup(serial, port,
1069 p_priv->resend_cont - 1);
1da177e4
LT		 1070 break;
1071 }
1072 }
1073}
1074
1075 /* This is actually called glostat in the Keyspan
1076 doco */
7d12e780 1077static void usa49_instat_callback(struct urb *urb)
1da177e4
LT		 1078{
1079 int err;
1080 unsigned char *data = urb->transfer_buffer;
1081 struct keyspan_usa49_portStatusMessage *msg;
1082 struct usb_serial *serial;
1083 struct usb_serial_port *port;
1084 struct keyspan_port_private *p_priv;
1085 int old_dcd_state;
95b93454 1086 int status = urb->status;
1da177e4 1087
cdc97792 1088 serial = urb->context;
1da177e4 1089
95b93454 1090 if (status) {
0cd782b0
JH		 1091 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1092 __func__, status);
1da177e4
LT		 1093 return;
1094 }
1095
deb91685
AC		 1096 if (urb->actual_length !=
1097 sizeof(struct keyspan_usa49_portStatusMessage)) {
049c6b4e 1098 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1da177e4
LT		 1099 goto exit;
1100 }
1101
1da177e4
LT		 1102 msg = (struct keyspan_usa49_portStatusMessage *)data;
1103
deb91685 1104 /* Check port number from message and retrieve private data */
1da177e4 1105 if (msg->portNumber >= serial->num_ports) {
049c6b4e
GKH		 1106 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1107 __func__, msg->portNumber);
1da177e4
LT		 1108 goto exit;
1109 }
1110 port = serial->port[msg->portNumber];
1111 p_priv = usb_get_serial_port_data(port);
b5122236
JH		 1112 if (!p_priv)
1113 goto resubmit;
deb91685 1114
1da177e4
LT		 1115 /* Update handshaking pin state information */
1116 old_dcd_state = p_priv->dcd_state;
1117 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1118 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1119 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1120 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1121
aa27a094
JS		 1122 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1123 tty_port_tty_hangup(&port->port, true);
b5122236 1124resubmit:
deb91685 1125 /* Resubmit urb so we continue receiving */
deb91685
AC		 1126 err = usb_submit_urb(urb, GFP_ATOMIC);
1127 if (err != 0)
049c6b4e 1128 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 1129exit: ;
1130}
1131
7d12e780 1132static void usa49_inack_callback(struct urb *urb)
1da177e4 1133{
1da177e4
LT		 1134}
1135
7d12e780 1136static void usa49_indat_callback(struct urb *urb)
1da177e4
LT		 1137{
1138 int i, err;
1139 int endpoint;
1140 struct usb_serial_port *port;
1da177e4 1141 unsigned char *data = urb->transfer_buffer;
95b93454 1142 int status = urb->status;
1da177e4 1143
1da177e4
LT		 1144 endpoint = usb_pipeendpoint(urb->pipe);
1145
95b93454 1146 if (status) {
0cd782b0 1147 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
049c6b4e 1148 __func__, status, endpoint);
1da177e4
LT		 1149 return;
1150 }
1151
cdc97792 1152 port = urb->context;
2e124b4a 1153 if (urb->actual_length) {
1da177e4
LT		 1154 /* 0x80 bit is error flag */
1155 if ((data[0] & 0x80) == 0) {
1156 /* no error on any byte */
05c7cd39 1157 tty_insert_flip_string(&port->port, data + 1,
f035a8ad 1158 urb->actual_length - 1);
1da177e4
LT		 1159 } else {
1160 /* some bytes had errors, every byte has status */
1161 for (i = 0; i + 1 < urb->actual_length; i += 2) {
5d1678a3
JH		 1162 int stat = data[i];
1163 int flag = TTY_NORMAL;
1164
1165 if (stat & RXERROR_OVERRUN) {
1166 tty_insert_flip_char(&port->port, 0,
1167 TTY_OVERRUN);
1168 }
1da177e4 1169 /* XXX should handle break (0x10) */
5d1678a3
JH		 1170 if (stat & RXERROR_PARITY)
1171 flag = TTY_PARITY;
1172 else if (stat & RXERROR_FRAMING)
1173 flag = TTY_FRAME;
1174
92a19f9c
JS		 1175 tty_insert_flip_char(&port->port, data[i+1],
1176 flag);
1da177e4
LT		 1177 }
1178 }
2e124b4a 1179 tty_flip_buffer_push(&port->port);
1da177e4 1180 }
deb91685
AC		 1181
1182 /* Resubmit urb so we continue receiving */
1f87158e
AS		 1183 err = usb_submit_urb(urb, GFP_ATOMIC);
1184 if (err != 0)
049c6b4e 1185 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 1186}
1187
0ca1268e
LM		 1188static void usa49wg_indat_callback(struct urb *urb)
1189{
1190 int i, len, x, err;
1191 struct usb_serial *serial;
1192 struct usb_serial_port *port;
0ca1268e 1193 unsigned char *data = urb->transfer_buffer;
95b93454 1194 int status = urb->status;
0ca1268e 1195
0ca1268e
LM		 1196 serial = urb->context;
1197
95b93454 1198 if (status) {
0cd782b0
JH		 1199 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1200 __func__, status);
0ca1268e
LM		 1201 return;
1202 }
1203
1204 /* inbound data is in the form P#, len, status, data */
1205 i = 0;
1206 len = 0;
1207
6a3ae841 1208 while (i < urb->actual_length) {
0ca1268e 1209
6a3ae841
DC		 1210 /* Check port number from message */
1211 if (data[i] >= serial->num_ports) {
1212 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1213 __func__, data[i]);
1214 return;
1215 }
1216 port = serial->port[data[i++]];
1217 len = data[i++];
0ca1268e 1218
6a3ae841
DC		 1219 /* 0x80 bit is error flag */
1220 if ((data[i] & 0x80) == 0) {
1221 /* no error on any byte */
1222 i++;
01a60e76 1223 for (x = 1; x < len && i < urb->actual_length; ++x)
6a3ae841
DC		 1224 tty_insert_flip_char(&port->port,
1225 data[i++], 0);
1226 } else {
1227 /*
1228 * some bytes had errors, every byte has status
1229 */
01a60e76
DC		 1230 for (x = 0; x + 1 < len &&
1231 i + 1 < urb->actual_length; x += 2) {
5d1678a3
JH		 1232 int stat = data[i];
1233 int flag = TTY_NORMAL;
6a3ae841 1234
5d1678a3
JH		 1235 if (stat & RXERROR_OVERRUN) {
1236 tty_insert_flip_char(&port->port, 0,
1237 TTY_OVERRUN);
1238 }
6a3ae841 1239 /* XXX should handle break (0x10) */
5d1678a3
JH		 1240 if (stat & RXERROR_PARITY)
1241 flag = TTY_PARITY;
1242 else if (stat & RXERROR_FRAMING)
1243 flag = TTY_FRAME;
1244
6a3ae841
DC		 1245 tty_insert_flip_char(&port->port, data[i+1],
1246 flag);
1247 i += 2;
0ca1268e 1248 }
0ca1268e 1249 }
6a3ae841 1250 tty_flip_buffer_push(&port->port);
0ca1268e
LM		 1251 }
1252
1253 /* Resubmit urb so we continue receiving */
0ca1268e
LM		 1254 err = usb_submit_urb(urb, GFP_ATOMIC);
1255 if (err != 0)
049c6b4e 1256 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
0ca1268e
LM		 1257}
1258
1da177e4 1259/* not used, usa-49 doesn't have per-port control endpoints */
0ca1268e 1260static void usa49_outcont_callback(struct urb *urb)
1da177e4 1261{
1da177e4
LT		 1262}
1263
0ca1268e 1264static void usa90_indat_callback(struct urb *urb)
1da177e4
LT		 1265{
1266 int i, err;
1267 int endpoint;
1268 struct usb_serial_port *port;
1269 struct keyspan_port_private *p_priv;
1da177e4 1270 unsigned char *data = urb->transfer_buffer;
95b93454 1271 int status = urb->status;
1da177e4 1272
1da177e4
LT		 1273 endpoint = usb_pipeendpoint(urb->pipe);
1274
95b93454 1275 if (status) {
0cd782b0
JH		 1276 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1277 __func__, status, endpoint);
1da177e4
LT		 1278 return;
1279 }
1280
cdc97792 1281 port = urb->context;
1da177e4
LT		 1282 p_priv = usb_get_serial_port_data(port);
1283
1da177e4 1284 if (urb->actual_length) {
1da177e4 1285 /* if current mode is DMA, looks like usa28 format
deb91685 1286 otherwise looks like usa26 data format */
1da177e4 1287
f035a8ad 1288 if (p_priv->baud > 57600)
05c7cd39
JS		 1289 tty_insert_flip_string(&port->port, data,
1290 urb->actual_length);
f035a8ad 1291 else {
1da177e4
LT		 1292 /* 0x80 bit is error flag */
1293 if ((data[0] & 0x80) == 0) {
deb91685
AC		 1294 /* no errors on individual bytes, only
1295 possible overrun err*/
855515a6
JH		 1296 if (data[0] & RXERROR_OVERRUN) {
1297 tty_insert_flip_char(&port->port, 0,
1298 TTY_OVERRUN);
1299 }
deb91685 1300 for (i = 1; i < urb->actual_length ; ++i)
92a19f9c 1301 tty_insert_flip_char(&port->port,
855515a6 1302 data[i], TTY_NORMAL);
deb91685 1303 } else {
1da177e4 1304 /* some bytes had errors, every byte has status */
049c6b4e 1305 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1da177e4 1306 for (i = 0; i + 1 < urb->actual_length; i += 2) {
5d1678a3
JH		 1307 int stat = data[i];
1308 int flag = TTY_NORMAL;
1309
1310 if (stat & RXERROR_OVERRUN) {
1311 tty_insert_flip_char(
1312 &port->port, 0,
1313 TTY_OVERRUN);
1314 }
1da177e4 1315 /* XXX should handle break (0x10) */
5d1678a3
JH		 1316 if (stat & RXERROR_PARITY)
1317 flag = TTY_PARITY;
1318 else if (stat & RXERROR_FRAMING)
1319 flag = TTY_FRAME;
1320
92a19f9c
JS		 1321 tty_insert_flip_char(&port->port,
1322 data[i+1], flag);
1da177e4
LT		 1323 }
1324 }
1325 }
2e124b4a 1326 tty_flip_buffer_push(&port->port);
1da177e4 1327 }
deb91685 1328
1da177e4 1329 /* Resubmit urb so we continue receiving */
1f87158e
AS		 1330 err = usb_submit_urb(urb, GFP_ATOMIC);
1331 if (err != 0)
049c6b4e 1332 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 1333}
1334
1335
7d12e780 1336static void usa90_instat_callback(struct urb *urb)
1da177e4
LT		 1337{
1338 unsigned char *data = urb->transfer_buffer;
1339 struct keyspan_usa90_portStatusMessage *msg;
1340 struct usb_serial *serial;
1341 struct usb_serial_port *port;
1342 struct keyspan_port_private *p_priv;
1343 int old_dcd_state, err;
95b93454 1344 int status = urb->status;
1da177e4 1345
cdc97792 1346 serial = urb->context;
1da177e4 1347
95b93454 1348 if (status) {
0cd782b0
JH		 1349 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1350 __func__, status);
1da177e4
LT		 1351 return;
1352 }
1353 if (urb->actual_length < 14) {
049c6b4e 1354 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1da177e4
LT		 1355 goto exit;
1356 }
1357
1358 msg = (struct keyspan_usa90_portStatusMessage *)data;
1359
1360 /* Now do something useful with the data */
1361
1362 port = serial->port[0];
1363 p_priv = usb_get_serial_port_data(port);
b5122236
JH		 1364 if (!p_priv)
1365 goto resubmit;
deb91685 1366
1da177e4
LT		 1367 /* Update handshaking pin state information */
1368 old_dcd_state = p_priv->dcd_state;
1369 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1370 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1371 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1372 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1373
aa27a094
JS		 1374 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1375 tty_port_tty_hangup(&port->port, true);
b5122236 1376resubmit:
1da177e4 1377 /* Resubmit urb so we continue receiving */
deb91685
AC		 1378 err = usb_submit_urb(urb, GFP_ATOMIC);
1379 if (err != 0)
049c6b4e 1380 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1da177e4
LT		 1381exit:
1382 ;
1383}
1384
7d12e780 1385static void usa90_outcont_callback(struct urb *urb)
1da177e4
LT		 1386{
1387 struct usb_serial_port *port;
1388 struct keyspan_port_private *p_priv;
1389
cdc97792 1390 port = urb->context;
1da177e4
LT		 1391 p_priv = usb_get_serial_port_data(port);
1392
1393 if (p_priv->resend_cont) {
049c6b4e 1394 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
deb91685
AC		 1395 keyspan_usa90_send_setup(port->serial, port,
1396 p_priv->resend_cont - 1);
1da177e4
LT		 1397 }
1398}
1399
0ca1268e
LM		 1400/* Status messages from the 28xg */
1401static void usa67_instat_callback(struct urb *urb)
1402{
1403 int err;
1404 unsigned char *data = urb->transfer_buffer;
1405 struct keyspan_usa67_portStatusMessage *msg;
1406 struct usb_serial *serial;
1407 struct usb_serial_port *port;
1408 struct keyspan_port_private *p_priv;
1409 int old_dcd_state;
95b93454 1410 int status = urb->status;
0ca1268e 1411
0ca1268e
LM		 1412 serial = urb->context;
1413
95b93454 1414 if (status) {
0cd782b0
JH		 1415 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1416 __func__, status);
0ca1268e
LM		 1417 return;
1418 }
1419
deb91685
AC		 1420 if (urb->actual_length !=
1421 sizeof(struct keyspan_usa67_portStatusMessage)) {
049c6b4e 1422 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
0ca1268e
LM		 1423 return;
1424 }
1425
1426
1427 /* Now do something useful with the data */
1428 msg = (struct keyspan_usa67_portStatusMessage *)data;
1429
1430 /* Check port number from message and retrieve private data */
1431 if (msg->port >= serial->num_ports) {
049c6b4e 1432 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
0ca1268e
LM		 1433 return;
1434 }
1435
1436 port = serial->port[msg->port];
1437 p_priv = usb_get_serial_port_data(port);
b5122236
JH		 1438 if (!p_priv)
1439 goto resubmit;
0ca1268e
LM		 1440
1441 /* Update handshaking pin state information */
1442 old_dcd_state = p_priv->dcd_state;
1443 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1444 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1445
aa27a094
JS		 1446 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1447 tty_port_tty_hangup(&port->port, true);
b5122236 1448resubmit:
0ca1268e 1449 /* Resubmit urb so we continue receiving */
0ca1268e
LM		 1450 err = usb_submit_urb(urb, GFP_ATOMIC);
1451 if (err != 0)
049c6b4e 1452 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
0ca1268e
LM		 1453}
1454
1455static void usa67_glocont_callback(struct urb *urb)
1456{
1457 struct usb_serial *serial;
1458 struct usb_serial_port *port;
1459 struct keyspan_port_private *p_priv;
1460 int i;
1461
0ca1268e
LM		 1462 serial = urb->context;
1463 for (i = 0; i < serial->num_ports; ++i) {
1464 port = serial->port[i];
1465 p_priv = usb_get_serial_port_data(port);
1466
1467 if (p_priv->resend_cont) {
049c6b4e 1468 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
0ca1268e
LM		 1469 keyspan_usa67_send_setup(serial, port,
1470 p_priv->resend_cont - 1);
1471 break;
1472 }
1473 }
1474}
1475
95da310e 1476static int keyspan_write_room(struct tty_struct *tty)
1da177e4 1477{
95da310e 1478 struct usb_serial_port *port = tty->driver_data;
1da177e4
LT		 1479 struct keyspan_port_private *p_priv;
1480 const struct keyspan_device_details *d_details;
1481 int flip;
1482 int data_len;
1483 struct urb *this_urb;
1484
1da177e4
LT		 1485 p_priv = usb_get_serial_port_data(port);
1486 d_details = p_priv->device_details;
1487
a5b6f60c 1488 /* FIXME: locking */
1da177e4 1489 if (d_details->msg_format == msg_usa90)
deb91685 1490 data_len = 64;
1da177e4
LT		 1491 else
1492 data_len = 63;
1493
1494 flip = p_priv->out_flip;
1495
1496 /* Check both endpoints to see if any are available. */
deb91685
AC		 1497 this_urb = p_priv->out_urbs[flip];
1498 if (this_urb != NULL) {
1da177e4 1499 if (this_urb->status != -EINPROGRESS)
deb91685
AC		 1500 return data_len;
1501 flip = (flip + 1) & d_details->outdat_endp_flip;
1502 this_urb = p_priv->out_urbs[flip];
1503 if (this_urb != NULL) {
1da177e4 1504 if (this_urb->status != -EINPROGRESS)
deb91685
AC		 1505 return data_len;
1506 }
1da177e4 1507 }
a5b6f60c 1508 return 0;
1da177e4
LT		 1509}
1510
1511
a509a7e4 1512static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1da177e4 1513{
f78ba157 1514 struct keyspan_port_private *p_priv;
1da177e4
LT		 1515 const struct keyspan_device_details *d_details;
1516 int i, err;
f78ba157 1517 int baud_rate, device_port;
1da177e4 1518 struct urb *urb;
95da310e 1519 unsigned int cflag = 0;
1da177e4 1520
1da177e4
LT		 1521 p_priv = usb_get_serial_port_data(port);
1522 d_details = p_priv->device_details;
7eea4364 1523
1da177e4
LT		 1524 /* Set some sane defaults */
1525 p_priv->rts_state = 1;
1526 p_priv->dtr_state = 1;
1527 p_priv->baud = 9600;
1528
1529 /* force baud and lcr to be set on open */
1530 p_priv->old_baud = 0;
1531 p_priv->old_cflag = 0;
1532
1533 p_priv->out_flip = 0;
1534 p_priv->in_flip = 0;
1535
1536 /* Reset low level data toggle and start reading from endpoints */
1537 for (i = 0; i < 2; i++) {
deb91685
AC		 1538 urb = p_priv->in_urbs[i];
1539 if (urb == NULL)
1da177e4 1540 continue;
1da177e4 1541
deb91685
AC		 1542 /* make sure endpoint data toggle is synchronized
1543 with the device */
1da177e4 1544 usb_clear_halt(urb->dev, urb->pipe);
deb91685
AC		 1545 err = usb_submit_urb(urb, GFP_KERNEL);
1546 if (err != 0)
049c6b4e 1547 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
1da177e4
LT		 1548 }
1549
1550 /* Reset low level data toggle on out endpoints */
1551 for (i = 0; i < 2; i++) {
deb91685
AC		 1552 urb = p_priv->out_urbs[i];
1553 if (urb == NULL)
1da177e4 1554 continue;
deb91685
AC		 1555 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1556 usb_pipeout(urb->pipe), 0); */
1da177e4
LT		 1557 }
1558
f78ba157
AM		 1559 /* get the terminal config for the setup message now so we don't
1560 * need to send 2 of them */
1561
1143832e 1562 device_port = port->port_number;
95da310e 1563 if (tty) {
adc8d746 1564 cflag = tty->termios.c_cflag;
95da310e
AC		 1565 /* Baud rate calculation takes baud rate as an integer
1566 so other rates can be generated if desired. */
1567 baud_rate = tty_get_baud_rate(tty);
1568 /* If no match or invalid, leave as default */
1569 if (baud_rate >= 0
049c6b4e 1570 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
95da310e
AC		 1571 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1572 p_priv->baud = baud_rate;
1573 }
f78ba157 1574 }
f78ba157
AM		 1575 /* set CTS/RTS handshake etc. */
1576 p_priv->cflag = cflag;
2b982ab1 1577 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
f78ba157
AM		 1578
1579 keyspan_send_setup(port, 1);
deb91685
AC		 1580 /* mdelay(100); */
1581 /* keyspan_set_termios(port, NULL); */
f78ba157 1582
a5b6f60c 1583 return 0;
1da177e4
LT		 1584}
1585
335f8514
AC		 1586static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1587{
1588 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1589
1590 p_priv->rts_state = on;
1591 p_priv->dtr_state = on;
1592 keyspan_send_setup(port, 0);
1593}
1594
1595static void keyspan_close(struct usb_serial_port *port)
1da177e4
LT		 1596{
1597 int i;
1da177e4
LT		 1598 struct keyspan_port_private *p_priv;
1599
1da177e4 1600 p_priv = usb_get_serial_port_data(port);
deb91685 1601
1da177e4
LT		 1602 p_priv->rts_state = 0;
1603 p_priv->dtr_state = 0;
deb91685 1604
80dfe0ce
JH		 1605 keyspan_send_setup(port, 2);
1606 /* pilot-xfer seems to work best with this delay */
1607 mdelay(100);
1da177e4
LT		 1608
1609 p_priv->out_flip = 0;
1610 p_priv->in_flip = 0;
1611
61924505 1612 usb_kill_urb(p_priv->inack_urb);
80dfe0ce 1613 for (i = 0; i < 2; i++) {
61924505
JH		 1614 usb_kill_urb(p_priv->in_urbs[i]);
1615 usb_kill_urb(p_priv->out_urbs[i]);
1da177e4 1616 }
1da177e4
LT		 1617}
1618
deb91685
AC		 1619/* download the firmware to a pre-renumeration device */
1620static int keyspan_fake_startup(struct usb_serial *serial)
1da177e4 1621{
8d733e26 1622 char *fw_name;
1da177e4 1623
049c6b4e
GKH		 1624 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
1625 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1626 le16_to_cpu(serial->dev->descriptor.idProduct));
deb91685
AC		 1627
1628 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1629 != 0x8000) {
049c6b4e 1630 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n");
deb91685 1631 return 1;
1da177e4
LT		 1632 }
1633
1634 /* Select firmware image on the basis of idProduct */
1635 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1636 case keyspan_usa28_pre_product_id:
2971c579 1637 fw_name = "keyspan/usa28.fw";
1da177e4
LT		 1638 break;
1639
1640 case keyspan_usa28x_pre_product_id:
2971c579 1641 fw_name = "keyspan/usa28x.fw";
1da177e4
LT		 1642 break;
1643
1644 case keyspan_usa28xa_pre_product_id:
2971c579 1645 fw_name = "keyspan/usa28xa.fw";
1da177e4
LT		 1646 break;
1647
1648 case keyspan_usa28xb_pre_product_id:
2971c579 1649 fw_name = "keyspan/usa28xb.fw";
1da177e4
LT		 1650 break;
1651
1652 case keyspan_usa19_pre_product_id:
2971c579 1653 fw_name = "keyspan/usa19.fw";
1da177e4 1654 break;
deb91685 1655
1da177e4 1656 case keyspan_usa19qi_pre_product_id:
2971c579 1657 fw_name = "keyspan/usa19qi.fw";
1da177e4 1658 break;
deb91685 1659
1da177e4 1660 case keyspan_mpr_pre_product_id:
2971c579 1661 fw_name = "keyspan/mpr.fw";
1da177e4
LT		 1662 break;
1663
1664 case keyspan_usa19qw_pre_product_id:
2971c579 1665 fw_name = "keyspan/usa19qw.fw";
1da177e4 1666 break;
deb91685 1667
1da177e4 1668 case keyspan_usa18x_pre_product_id:
2971c579 1669 fw_name = "keyspan/usa18x.fw";
1da177e4 1670 break;
deb91685 1671
1da177e4 1672 case keyspan_usa19w_pre_product_id:
2971c579 1673 fw_name = "keyspan/usa19w.fw";
1da177e4 1674 break;
deb91685 1675
1da177e4 1676 case keyspan_usa49w_pre_product_id:
2971c579 1677 fw_name = "keyspan/usa49w.fw";
1da177e4
LT		 1678 break;
1679
1680 case keyspan_usa49wlc_pre_product_id:
2971c579 1681 fw_name = "keyspan/usa49wlc.fw";
1da177e4
LT		 1682 break;
1683
1684 default:
2971c579
DW		 1685 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1686 le16_to_cpu(serial->dev->descriptor.idProduct));
1687 return 1;
1da177e4
LT		 1688 }
1689
049c6b4e 1690 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
1da177e4 1691
8d733e26
RB		 1692 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
1693 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
1694 fw_name);
1695 return -ENOENT;
1da177e4 1696 }
8d733e26
RB		 1697
1698 /* after downloading firmware Renumeration will occur in a
1699 moment and the new device will bind to the real driver */
1da177e4
LT		 1700
1701 /* we don't want this device to have a driver assigned to it. */
deb91685 1702 return 1;
1da177e4
LT		 1703}
1704
1705/* Helper functions used by keyspan_setup_urbs */
fdcba53e
RW		 1706static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1707 int endpoint)
1708{
1709 struct usb_host_interface *iface_desc;
1710 struct usb_endpoint_descriptor *ep;
1711 int i;
1712
1713 iface_desc = serial->interface->cur_altsetting;
1714 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1715 ep = &iface_desc->endpoint[i].desc;
1716 if (ep->bEndpointAddress == endpoint)
1717 return ep;
1718 }
0cd782b0
JH		 1719 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n",
1720 endpoint);
fdcba53e
RW		 1721 return NULL;
1722}
1723
deb91685 1724static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1da177e4 1725 int dir, void *ctx, char *buf, int len,
7d12e780 1726 void (*callback)(struct urb *))
1da177e4
LT		 1727{
1728 struct urb *urb;
fdcba53e
RW		 1729 struct usb_endpoint_descriptor const *ep_desc;
1730 char const *ep_type_name;
1da177e4
LT		 1731
1732 if (endpoint == -1)
1733 return NULL; /* endpoint not needed */
1734
0cd782b0
JH		 1735 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n",
1736 __func__, endpoint);
1da177e4 1737 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
10c642d0 1738 if (!urb)
1da177e4 1739 return NULL;
1da177e4 1740
0ca1268e
LM		 1741 if (endpoint == 0) {
1742 /* control EP filled in when used */
1743 return urb;
1744 }
1745
fdcba53e
RW		 1746 ep_desc = find_ep(serial, endpoint);
1747 if (!ep_desc) {
1748 /* leak the urb, something's wrong and the callers don't care */
1749 return urb;
1750 }
1751 if (usb_endpoint_xfer_int(ep_desc)) {
1752 ep_type_name = "INT";
1753 usb_fill_int_urb(urb, serial->dev,
1754 usb_sndintpipe(serial->dev, endpoint) | dir,
1755 buf, len, callback, ctx,
1756 ep_desc->bInterval);
1757 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1758 ep_type_name = "BULK";
1759 usb_fill_bulk_urb(urb, serial->dev,
1760 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1761 buf, len, callback, ctx);
1762 } else {
1763 dev_warn(&serial->interface->dev,
1764 "unsupported endpoint type %x\n",
2e0fe709 1765 usb_endpoint_type(ep_desc));
fdcba53e
RW		 1766 usb_free_urb(urb);
1767 return NULL;
1768 }
1da177e4 1769
049c6b4e 1770 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
fdcba53e 1771 __func__, urb, ep_type_name, endpoint);
1da177e4
LT		 1772 return urb;
1773}
1774
1775static struct callbacks {
7d12e780
DH		 1776 void (*instat_callback)(struct urb *);
1777 void (*glocont_callback)(struct urb *);
1778 void (*indat_callback)(struct urb *);
1779 void (*outdat_callback)(struct urb *);
1780 void (*inack_callback)(struct urb *);
1781 void (*outcont_callback)(struct urb *);
1da177e4
LT		 1782} keyspan_callbacks[] = {
1783 {
1784 /* msg_usa26 callbacks */
1785 .instat_callback = usa26_instat_callback,
1786 .glocont_callback = usa26_glocont_callback,
1787 .indat_callback = usa26_indat_callback,
1788 .outdat_callback = usa2x_outdat_callback,
1789 .inack_callback = usa26_inack_callback,
1790 .outcont_callback = usa26_outcont_callback,
1791 }, {
1792 /* msg_usa28 callbacks */
1793 .instat_callback = usa28_instat_callback,
1794 .glocont_callback = usa28_glocont_callback,
1795 .indat_callback = usa28_indat_callback,
1796 .outdat_callback = usa2x_outdat_callback,
1797 .inack_callback = usa28_inack_callback,
1798 .outcont_callback = usa28_outcont_callback,
1799 }, {
1800 /* msg_usa49 callbacks */
1801 .instat_callback = usa49_instat_callback,
1802 .glocont_callback = usa49_glocont_callback,
1803 .indat_callback = usa49_indat_callback,
1804 .outdat_callback = usa2x_outdat_callback,
1805 .inack_callback = usa49_inack_callback,
1806 .outcont_callback = usa49_outcont_callback,
1807 }, {
1808 /* msg_usa90 callbacks */
1809 .instat_callback = usa90_instat_callback,
deb91685 1810 .glocont_callback = usa28_glocont_callback,
1da177e4
LT		 1811 .indat_callback = usa90_indat_callback,
1812 .outdat_callback = usa2x_outdat_callback,
1813 .inack_callback = usa28_inack_callback,
1814 .outcont_callback = usa90_outcont_callback,
0ca1268e
LM		 1815 }, {
1816 /* msg_usa67 callbacks */
1817 .instat_callback = usa67_instat_callback,
1818 .glocont_callback = usa67_glocont_callback,
1819 .indat_callback = usa26_indat_callback,
1820 .outdat_callback = usa2x_outdat_callback,
1821 .inack_callback = usa26_inack_callback,
1822 .outcont_callback = usa26_outcont_callback,
1da177e4
LT		 1823 }
1824};
1825
1826 /* Generic setup urbs function that uses
1827 data in device_details */
1828static void keyspan_setup_urbs(struct usb_serial *serial)
1829{
1da177e4
LT		 1830 struct keyspan_serial_private *s_priv;
1831 const struct keyspan_device_details *d_details;
1da177e4 1832 struct callbacks *cback;
1da177e4 1833
1da177e4
LT		 1834 s_priv = usb_get_serial_data(serial);
1835 d_details = s_priv->device_details;
1836
deb91685 1837 /* Setup values for the various callback routines */
1da177e4
LT		 1838 cback = &keyspan_callbacks[d_details->msg_format];
1839
deb91685
AC		 1840 /* Allocate and set up urbs for each one that is in use,
1841 starting with instat endpoints */
1da177e4
LT		 1842 s_priv->instat_urb = keyspan_setup_urb
1843 (serial, d_details->instat_endpoint, USB_DIR_IN,
1844 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1845 cback->instat_callback);
1846
0ca1268e
LM		 1847 s_priv->indat_urb = keyspan_setup_urb
1848 (serial, d_details->indat_endpoint, USB_DIR_IN,
1849 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1850 usa49wg_indat_callback);
1851
1da177e4
LT		 1852 s_priv->glocont_urb = keyspan_setup_urb
1853 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1854 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1855 cback->glocont_callback);
1da177e4
LT		 1856}
1857
1858/* usa19 function doesn't require prescaler */
049c6b4e
GKH		 1859static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
1860 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1da177e4
LT		 1861 u8 *rate_low, u8 *prescaler, int portnum)
1862{
1863 u32 b16, /* baud rate times 16 (actual rate used internally) */
deb91685 1864 div, /* divisor */
1da177e4 1865 cnt; /* inverse of divisor (programmed into 8051) */
1da177e4 1866
049c6b4e 1867 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
deb91685
AC		 1868
1869 /* prevent divide by zero... */
1870 b16 = baud_rate * 16L;
1871 if (b16 == 0)
1872 return KEYSPAN_INVALID_BAUD_RATE;
1873 /* Any "standard" rate over 57k6 is marginal on the USA-19
1874 as we run out of divisor resolution. */
1875 if (baud_rate > 57600)
1876 return KEYSPAN_INVALID_BAUD_RATE;
1877
1878 /* calculate the divisor and the counter (its inverse) */
1879 div = baudclk / b16;
1880 if (div == 0)
1881 return KEYSPAN_INVALID_BAUD_RATE;
1882 else
1da177e4 1883 cnt = 0 - div;
1da177e4 1884
deb91685
AC		 1885 if (div > 0xffff)
1886 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4 1887
deb91685
AC		 1888 /* return the counter values if non-null */
1889 if (rate_low)
1da177e4 1890 *rate_low = (u8) (cnt & 0xff);
deb91685 1891 if (rate_hi)
1da177e4 1892 *rate_hi = (u8) ((cnt >> 8) & 0xff);
deb91685 1893 if (rate_low && rate_hi)
049c6b4e 1894 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
deb91685
AC		 1895 __func__, baud_rate, *rate_hi, *rate_low);
1896 return KEYSPAN_BAUD_RATE_OK;
1da177e4
LT		 1897}
1898
1899/* usa19hs function doesn't require prescaler */
049c6b4e
GKH		 1900static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
1901 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1902 u8 *rate_low, u8 *prescaler, int portnum)
1da177e4
LT		 1903{
1904 u32 b16, /* baud rate times 16 (actual rate used internally) */
deb91685 1905 div; /* divisor */
1da177e4 1906
049c6b4e 1907 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1da177e4 1908
deb91685
AC		 1909 /* prevent divide by zero... */
1910 b16 = baud_rate * 16L;
1911 if (b16 == 0)
1912 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4 1913
deb91685
AC		 1914 /* calculate the divisor */
1915 div = baudclk / b16;
1916 if (div == 0)
1917 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4 1918
deb91685
AC		 1919 if (div > 0xffff)
1920 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4 1921
deb91685
AC		 1922 /* return the counter values if non-null */
1923 if (rate_low)
1da177e4 1924 *rate_low = (u8) (div & 0xff);
deb91685
AC		 1925
1926 if (rate_hi)
1da177e4 1927 *rate_hi = (u8) ((div >> 8) & 0xff);
deb91685
AC		 1928
1929 if (rate_low && rate_hi)
049c6b4e 1930 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
deb91685
AC		 1931 __func__, baud_rate, *rate_hi, *rate_low);
1932
1933 return KEYSPAN_BAUD_RATE_OK;
1da177e4
LT		 1934}
1935
049c6b4e
GKH		 1936static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
1937 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1da177e4
LT		 1938 u8 *rate_low, u8 *prescaler, int portnum)
1939{
1940 u32 b16, /* baud rate times 16 (actual rate used internally) */
1941 clk, /* clock with 13/8 prescaler */
deb91685 1942 div, /* divisor using 13/8 prescaler */
1da177e4
LT		 1943 res, /* resulting baud rate using 13/8 prescaler */
1944 diff, /* error using 13/8 prescaler */
1945 smallest_diff;
1946 u8 best_prescaler;
1947 int i;
1948
049c6b4e 1949 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1da177e4 1950
deb91685
AC		 1951 /* prevent divide by zero */
1952 b16 = baud_rate * 16L;
1953 if (b16 == 0)
1954 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4 1955
deb91685
AC		 1956 /* Calculate prescaler by trying them all and looking
1957 for best fit */
1958
1959 /* start with largest possible difference */
1da177e4
LT		 1960 smallest_diff = 0xffffffff;
1961
1962 /* 0 is an invalid prescaler, used as a flag */
1963 best_prescaler = 0;
1964
deb91685 1965 for (i = 8; i <= 0xff; ++i) {
1da177e4 1966 clk = (baudclk * 8) / (u32) i;
deb91685
AC		 1967
1968 div = clk / b16;
1969 if (div == 0)
1da177e4 1970 continue;
1da177e4
LT		 1971
1972 res = clk / div;
deb91685 1973 diff = (res > b16) ? (res-b16) : (b16-res);
1da177e4 1974
deb91685 1975 if (diff < smallest_diff) {
1da177e4
LT		 1976 best_prescaler = i;
1977 smallest_diff = diff;
1978 }
1979 }
1980
deb91685
AC		 1981 if (best_prescaler == 0)
1982 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4
LT		 1983
1984 clk = (baudclk * 8) / (u32) best_prescaler;
1985 div = clk / b16;
1986
deb91685
AC		 1987 /* return the divisor and prescaler if non-null */
1988 if (rate_low)
1da177e4 1989 *rate_low = (u8) (div & 0xff);
deb91685 1990 if (rate_hi)
1da177e4 1991 *rate_hi = (u8) ((div >> 8) & 0xff);
1da177e4
LT		 1992 if (prescaler) {
1993 *prescaler = best_prescaler;
049c6b4e 1994 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
1da177e4 1995 }
deb91685 1996 return KEYSPAN_BAUD_RATE_OK;
1da177e4
LT		 1997}
1998
1999 /* USA-28 supports different maximum baud rates on each port */
049c6b4e
GKH		 2000static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
2001 u32 baud_rate, u32 baudclk, u8 *rate_hi,
2002 u8 *rate_low, u8 *prescaler, int portnum)
1da177e4
LT		 2003{
2004 u32 b16, /* baud rate times 16 (actual rate used internally) */
deb91685 2005 div, /* divisor */
1da177e4
LT		 2006 cnt; /* inverse of divisor (programmed into 8051) */
2007
049c6b4e 2008 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1da177e4
LT		 2009
2010 /* prevent divide by zero */
deb91685
AC		 2011 b16 = baud_rate * 16L;
2012 if (b16 == 0)
2013 return KEYSPAN_INVALID_BAUD_RATE;
2014
2015 /* calculate the divisor and the counter (its inverse) */
2016 div = KEYSPAN_USA28_BAUDCLK / b16;
2017 if (div == 0)
2018 return KEYSPAN_INVALID_BAUD_RATE;
2019 else
1da177e4 2020 cnt = 0 - div;
1da177e4 2021
deb91685
AC		 2022 /* check for out of range, based on portnum,
2023 and return result */
2024 if (portnum == 0) {
2025 if (div > 0xffff)
2026 return KEYSPAN_INVALID_BAUD_RATE;
2027 } else {
2028 if (portnum == 1) {
2029 if (div > 0xff)
2030 return KEYSPAN_INVALID_BAUD_RATE;
2031 } else
2032 return KEYSPAN_INVALID_BAUD_RATE;
1da177e4
LT		 2033 }
2034
2035 /* return the counter values if not NULL
2036 (port 1 will ignore retHi) */
deb91685 2037 if (rate_low)
1da177e4 2038 *rate_low = (u8) (cnt & 0xff);
deb91685 2039 if (rate_hi)
1da177e4 2040 *rate_hi = (u8) ((cnt >> 8) & 0xff);
049c6b4e 2041 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
deb91685 2042 return KEYSPAN_BAUD_RATE_OK;
1da177e4
LT		 2043}
2044
2045static int keyspan_usa26_send_setup(struct usb_serial *serial,
2046 struct usb_serial_port *port,
2047 int reset_port)
2048{
deb91685 2049 struct keyspan_usa26_portControlMessage msg;
1da177e4
LT		 2050 struct keyspan_serial_private *s_priv;
2051 struct keyspan_port_private *p_priv;
2052 const struct keyspan_device_details *d_details;
1da177e4
LT		 2053 struct urb *this_urb;
2054 int device_port, err;
2055
049c6b4e 2056 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
1da177e4
LT		 2057
2058 s_priv = usb_get_serial_data(serial);
2059 p_priv = usb_get_serial_port_data(port);
2060 d_details = s_priv->device_details;
1143832e 2061 device_port = port->port_number;
1da177e4 2062
1da177e4
LT		 2063 this_urb = p_priv->outcont_urb;
2064
1da177e4
LT		 2065 /* Make sure we have an urb then send the message */
2066 if (this_urb == NULL) {
049c6b4e 2067 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
1da177e4
LT		 2068 return -1;
2069 }
2070
0cd782b0
JH		 2071 dev_dbg(&port->dev, "%s - endpoint %x\n",
2072 __func__, usb_pipeendpoint(this_urb->pipe));
d5afce82 2073
1da177e4 2074 /* Save reset port val for resend.
0ca1268e
LM		 2075 Don't overwrite resend for open/close condition. */
2076 if ((reset_port + 1) > p_priv->resend_cont)
1da177e4
LT		 2077 p_priv->resend_cont = reset_port + 1;
2078 if (this_urb->status == -EINPROGRESS) {
049c6b4e 2079 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
1da177e4 2080 mdelay(5);
deb91685 2081 return -1;
1da177e4
LT		 2082 }
2083
deb91685
AC		 2084 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
2085
2086 /* Only set baud rate if it's changed */
1da177e4
LT		 2087 if (p_priv->old_baud != p_priv->baud) {
2088 p_priv->old_baud = p_priv->baud;
2089 msg.setClocking = 0xff;
049c6b4e
GKH		 2090 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2091 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2092 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2093 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2094 __func__, p_priv->baud);
1da177e4
LT		 2095 msg.baudLo = 0;
2096 msg.baudHi = 125; /* Values for 9600 baud */
2097 msg.prescaler = 10;
2098 }
2099 msg.setPrescaler = 0xff;
2100 }
2101
2b982ab1 2102 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
1da177e4
LT		 2103 switch (p_priv->cflag & CSIZE) {
2104 case CS5:
2105 msg.lcr |= USA_DATABITS_5;
2106 break;
2107 case CS6:
2108 msg.lcr |= USA_DATABITS_6;
2109 break;
2110 case CS7:
2111 msg.lcr |= USA_DATABITS_7;
2112 break;
2113 case CS8:
2114 msg.lcr |= USA_DATABITS_8;
2115 break;
2116 }
2117 if (p_priv->cflag & PARENB) {
2118 /* note USA_PARITY_NONE == 0 */
2b982ab1 2119 msg.lcr |= (p_priv->cflag & PARODD) ?
deb91685 2120 USA_PARITY_ODD : USA_PARITY_EVEN;
1da177e4
LT		 2121 }
2122 msg.setLcr = 0xff;
2123
2124 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2125 msg.xonFlowControl = 0;
2126 msg.setFlowControl = 0xff;
2127 msg.forwardingLength = 16;
2128 msg.xonChar = 17;
2129 msg.xoffChar = 19;
2130
2131 /* Opening port */
2132 if (reset_port == 1) {
2133 msg._txOn = 1;
2134 msg._txOff = 0;
2135 msg.txFlush = 0;
2136 msg.txBreak = 0;
2137 msg.rxOn = 1;
2138 msg.rxOff = 0;
2139 msg.rxFlush = 1;
2140 msg.rxForward = 0;
2141 msg.returnStatus = 0;
2142 msg.resetDataToggle = 0xff;
2143 }
2144
2145 /* Closing port */
2146 else if (reset_port == 2) {
2147 msg._txOn = 0;
2148 msg._txOff = 1;
2149 msg.txFlush = 0;
2150 msg.txBreak = 0;
2151 msg.rxOn = 0;
2152 msg.rxOff = 1;
2153 msg.rxFlush = 1;
2154 msg.rxForward = 0;
2155 msg.returnStatus = 0;
2156 msg.resetDataToggle = 0;
2157 }
2158
2159 /* Sending intermediate configs */
2160 else {
deb91685 2161 msg._txOn = (!p_priv->break_on);
1da177e4
LT		 2162 msg._txOff = 0;
2163 msg.txFlush = 0;
2164 msg.txBreak = (p_priv->break_on);
2165 msg.rxOn = 0;
2166 msg.rxOff = 0;
2167 msg.rxFlush = 0;
2168 msg.rxForward = 0;
2169 msg.returnStatus = 0;
2170 msg.resetDataToggle = 0x0;
2171 }
2172
deb91685 2173 /* Do handshaking outputs */
1da177e4
LT		 2174 msg.setTxTriState_setRts = 0xff;
2175 msg.txTriState_rts = p_priv->rts_state;
2176
2177 msg.setHskoa_setDtr = 0xff;
2178 msg.hskoa_dtr = p_priv->dtr_state;
deb91685 2179
1da177e4 2180 p_priv->resend_cont = 0;
deb91685
AC		 2181 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2182
1da177e4
LT		 2183 /* send the data out the device on control endpoint */
2184 this_urb->transfer_buffer_length = sizeof(msg);
2185
deb91685
AC		 2186 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2187 if (err != 0)
049c6b4e 2188 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
a5b6f60c 2189 return 0;
1da177e4
LT		 2190}
2191
2192static int keyspan_usa28_send_setup(struct usb_serial *serial,
2193 struct usb_serial_port *port,
2194 int reset_port)
2195{
deb91685 2196 struct keyspan_usa28_portControlMessage msg;
1da177e4
LT		 2197 struct keyspan_serial_private *s_priv;
2198 struct keyspan_port_private *p_priv;
2199 const struct keyspan_device_details *d_details;
2200 struct urb *this_urb;
2201 int device_port, err;
2202
1da177e4
LT		 2203 s_priv = usb_get_serial_data(serial);
2204 p_priv = usb_get_serial_port_data(port);
2205 d_details = s_priv->device_details;
1143832e 2206 device_port = port->port_number;
1da177e4
LT		 2207
2208 /* only do something if we have a bulk out endpoint */
deb91685
AC		 2209 this_urb = p_priv->outcont_urb;
2210 if (this_urb == NULL) {
049c6b4e 2211 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
1da177e4
LT		 2212 return -1;
2213 }
2214
2215 /* Save reset port val for resend.
0ca1268e
LM		 2216 Don't overwrite resend for open/close condition. */
2217 if ((reset_port + 1) > p_priv->resend_cont)
1da177e4
LT		 2218 p_priv->resend_cont = reset_port + 1;
2219 if (this_urb->status == -EINPROGRESS) {
049c6b4e 2220 dev_dbg(&port->dev, "%s already writing\n", __func__);
1da177e4 2221 mdelay(5);
deb91685 2222 return -1;
1da177e4
LT		 2223 }
2224
deb91685 2225 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
1da177e4
LT		 2226
2227 msg.setBaudRate = 1;
049c6b4e
GKH		 2228 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2229 &msg.baudHi, &msg.baudLo, NULL,
2230 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2231 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
deb91685 2232 __func__, p_priv->baud);
1da177e4
LT		 2233 msg.baudLo = 0xff;
2234 msg.baudHi = 0xb2; /* Values for 9600 baud */
2235 }
2236
2237 /* If parity is enabled, we must calculate it ourselves. */
2238 msg.parity = 0; /* XXX for now */
2239
2240 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2241 msg.xonFlowControl = 0;
2242
deb91685 2243 /* Do handshaking outputs, DTR is inverted relative to RTS */
1da177e4
LT		 2244 msg.rts = p_priv->rts_state;
2245 msg.dtr = p_priv->dtr_state;
2246
2247 msg.forwardingLength = 16;
2248 msg.forwardMs = 10;
2249 msg.breakThreshold = 45;
2250 msg.xonChar = 17;
2251 msg.xoffChar = 19;
2252
2253 /*msg.returnStatus = 1;
2254 msg.resetDataToggle = 0xff;*/
2255 /* Opening port */
2256 if (reset_port == 1) {
2257 msg._txOn = 1;
2258 msg._txOff = 0;
2259 msg.txFlush = 0;
2260 msg.txForceXoff = 0;
2261 msg.txBreak = 0;
2262 msg.rxOn = 1;
2263 msg.rxOff = 0;
2264 msg.rxFlush = 1;
2265 msg.rxForward = 0;
2266 msg.returnStatus = 0;
2267 msg.resetDataToggle = 0xff;
2268 }
2269 /* Closing port */
2270 else if (reset_port == 2) {
2271 msg._txOn = 0;
2272 msg._txOff = 1;
2273 msg.txFlush = 0;
2274 msg.txForceXoff = 0;
2275 msg.txBreak = 0;
2276 msg.rxOn = 0;
2277 msg.rxOff = 1;
2278 msg.rxFlush = 1;
2279 msg.rxForward = 0;
2280 msg.returnStatus = 0;
2281 msg.resetDataToggle = 0;
2282 }
2283 /* Sending intermediate configs */
2284 else {
deb91685 2285 msg._txOn = (!p_priv->break_on);
1da177e4
LT		 2286 msg._txOff = 0;
2287 msg.txFlush = 0;
2288 msg.txForceXoff = 0;
2289 msg.txBreak = (p_priv->break_on);
2290 msg.rxOn = 0;
2291 msg.rxOff = 0;
2292 msg.rxFlush = 0;
2293 msg.rxForward = 0;
2294 msg.returnStatus = 0;
2295 msg.resetDataToggle = 0x0;
2296 }
2297
2298 p_priv->resend_cont = 0;
deb91685 2299 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
1da177e4
LT		 2300
2301 /* send the data out the device on control endpoint */
2302 this_urb->transfer_buffer_length = sizeof(msg);
2303
deb91685
AC		 2304 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2305 if (err != 0)
049c6b4e 2306 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
1da177e4 2307
a5b6f60c 2308 return 0;
1da177e4
LT		 2309}
2310
2311static int keyspan_usa49_send_setup(struct usb_serial *serial,
2312 struct usb_serial_port *port,
2313 int reset_port)
2314{
0ca1268e
LM		 2315 struct keyspan_usa49_portControlMessage msg;
2316 struct usb_ctrlrequest *dr = NULL;
1da177e4
LT		 2317 struct keyspan_serial_private *s_priv;
2318 struct keyspan_port_private *p_priv;
2319 const struct keyspan_device_details *d_details;
1da177e4
LT		 2320 struct urb *this_urb;
2321 int err, device_port;
2322
1da177e4
LT		 2323 s_priv = usb_get_serial_data(serial);
2324 p_priv = usb_get_serial_port_data(port);
2325 d_details = s_priv->device_details;
2326
1da177e4
LT		 2327 this_urb = s_priv->glocont_urb;
2328
0ca1268e 2329 /* Work out which port within the device is being setup */
1143832e 2330 device_port = port->port_number;
1da177e4 2331
d866150a 2332 /* Make sure we have an urb then send the message */
1da177e4 2333 if (this_urb == NULL) {
1143832e 2334 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
1da177e4
LT		 2335 return -1;
2336 }
2337
0cd782b0 2338 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n",
1143832e 2339 __func__, usb_pipeendpoint(this_urb->pipe), device_port);
d866150a 2340
1da177e4 2341 /* Save reset port val for resend.
0ca1268e
LM		 2342 Don't overwrite resend for open/close condition. */
2343 if ((reset_port + 1) > p_priv->resend_cont)
1da177e4 2344 p_priv->resend_cont = reset_port + 1;
0ca1268e 2345
1da177e4 2346 if (this_urb->status == -EINPROGRESS) {
049c6b4e 2347 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
1da177e4 2348 mdelay(5);
deb91685 2349 return -1;
1da177e4
LT		 2350 }
2351
deb91685 2352 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
1da177e4 2353
1da177e4 2354 msg.portNumber = device_port;
deb91685
AC		 2355
2356 /* Only set baud rate if it's changed */
1da177e4
LT		 2357 if (p_priv->old_baud != p_priv->baud) {
2358 p_priv->old_baud = p_priv->baud;
2359 msg.setClocking = 0xff;
049c6b4e
GKH		 2360 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2361 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2362 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2363 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2364 __func__, p_priv->baud);
1da177e4
LT		 2365 msg.baudLo = 0;
2366 msg.baudHi = 125; /* Values for 9600 baud */
2367 msg.prescaler = 10;
2368 }
deb91685 2369 /* msg.setPrescaler = 0xff; */
1da177e4
LT		 2370 }
2371
2b982ab1 2372 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
1da177e4
LT		 2373 switch (p_priv->cflag & CSIZE) {
2374 case CS5:
2375 msg.lcr |= USA_DATABITS_5;
2376 break;
2377 case CS6:
2378 msg.lcr |= USA_DATABITS_6;
2379 break;
2380 case CS7:
2381 msg.lcr |= USA_DATABITS_7;
2382 break;
2383 case CS8:
2384 msg.lcr |= USA_DATABITS_8;
2385 break;
2386 }
2387 if (p_priv->cflag & PARENB) {
2388 /* note USA_PARITY_NONE == 0 */
2b982ab1 2389 msg.lcr |= (p_priv->cflag & PARODD) ?
deb91685 2390 USA_PARITY_ODD : USA_PARITY_EVEN;
1da177e4
LT		 2391 }
2392 msg.setLcr = 0xff;
2393
2394 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2395 msg.xonFlowControl = 0;
2396 msg.setFlowControl = 0xff;
deb91685 2397
1da177e4
LT		 2398 msg.forwardingLength = 16;
2399 msg.xonChar = 17;
2400 msg.xoffChar = 19;
2401
deb91685 2402 /* Opening port */
1da177e4
LT		 2403 if (reset_port == 1) {
2404 msg._txOn = 1;
2405 msg._txOff = 0;
2406 msg.txFlush = 0;
2407 msg.txBreak = 0;
2408 msg.rxOn = 1;
2409 msg.rxOff = 0;
2410 msg.rxFlush = 1;
2411 msg.rxForward = 0;
2412 msg.returnStatus = 0;
2413 msg.resetDataToggle = 0xff;
2414 msg.enablePort = 1;
2415 msg.disablePort = 0;
2416 }
2417 /* Closing port */
2418 else if (reset_port == 2) {
2419 msg._txOn = 0;
2420 msg._txOff = 1;
2421 msg.txFlush = 0;
2422 msg.txBreak = 0;
2423 msg.rxOn = 0;
2424 msg.rxOff = 1;
2425 msg.rxFlush = 1;
2426 msg.rxForward = 0;
2427 msg.returnStatus = 0;
2428 msg.resetDataToggle = 0;
2429 msg.enablePort = 0;
2430 msg.disablePort = 1;
2431 }
2432 /* Sending intermediate configs */
2433 else {
deb91685 2434 msg._txOn = (!p_priv->break_on);
1da177e4
LT		 2435 msg._txOff = 0;
2436 msg.txFlush = 0;
2437 msg.txBreak = (p_priv->break_on);
2438 msg.rxOn = 0;
2439 msg.rxOff = 0;
2440 msg.rxFlush = 0;
2441 msg.rxForward = 0;
2442 msg.returnStatus = 0;
2443 msg.resetDataToggle = 0x0;
2444 msg.enablePort = 0;
2445 msg.disablePort = 0;
2446 }
2447
deb91685 2448 /* Do handshaking outputs */
1da177e4
LT		 2449 msg.setRts = 0xff;
2450 msg.rts = p_priv->rts_state;
2451
2452 msg.setDtr = 0xff;
2453 msg.dtr = p_priv->dtr_state;
deb91685 2454
1da177e4 2455 p_priv->resend_cont = 0;
0ca1268e 2456
deb91685
AC		 2457 /* if the device is a 49wg, we send control message on usb
2458 control EP 0 */
0ca1268e
LM		 2459
2460 if (d_details->product_id == keyspan_usa49wg_product_id) {
2461 dr = (void *)(s_priv->ctrl_buf);
2462 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
6424839c 2463 dr->bRequest = 0xB0; /* 49wg control message */
0ca1268e
LM		 2464 dr->wValue = 0;
2465 dr->wIndex = 0;
2466 dr->wLength = cpu_to_le16(sizeof(msg));
2467
deb91685 2468 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
0ca1268e 2469
deb91685
AC		 2470 usb_fill_control_urb(this_urb, serial->dev,
2471 usb_sndctrlpipe(serial->dev, 0),
2472 (unsigned char *)dr, s_priv->glocont_buf,
2473 sizeof(msg), usa49_glocont_callback, serial);
0ca1268e
LM		 2474
2475 } else {
2476 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
deb91685 2477
0ca1268e
LM		 2478 /* send the data out the device on control endpoint */
2479 this_urb->transfer_buffer_length = sizeof(msg);
0ca1268e 2480 }
deb91685
AC		 2481 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2482 if (err != 0)
049c6b4e 2483 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
1da177e4 2484
a5b6f60c 2485 return 0;
1da177e4
LT		 2486}
2487
2488static int keyspan_usa90_send_setup(struct usb_serial *serial,
2489 struct usb_serial_port *port,
2490 int reset_port)
2491{
deb91685 2492 struct keyspan_usa90_portControlMessage msg;
1da177e4
LT		 2493 struct keyspan_serial_private *s_priv;
2494 struct keyspan_port_private *p_priv;
2495 const struct keyspan_device_details *d_details;
2496 struct urb *this_urb;
2497 int err;
2498 u8 prescaler;
2499
1da177e4
LT		 2500 s_priv = usb_get_serial_data(serial);
2501 p_priv = usb_get_serial_port_data(port);
2502 d_details = s_priv->device_details;
2503
2504 /* only do something if we have a bulk out endpoint */
deb91685
AC		 2505 this_urb = p_priv->outcont_urb;
2506 if (this_urb == NULL) {
049c6b4e 2507 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
1da177e4
LT		 2508 return -1;
2509 }
2510
2511 /* Save reset port val for resend.
2512 Don't overwrite resend for open/close condition. */
2513 if ((reset_port + 1) > p_priv->resend_cont)
2514 p_priv->resend_cont = reset_port + 1;
2515 if (this_urb->status == -EINPROGRESS) {
049c6b4e 2516 dev_dbg(&port->dev, "%s already writing\n", __func__);
1da177e4 2517 mdelay(5);
deb91685 2518 return -1;
1da177e4
LT		 2519 }
2520
deb91685 2521 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
1da177e4 2522
deb91685 2523 /* Only set baud rate if it's changed */
1da177e4
LT		 2524 if (p_priv->old_baud != p_priv->baud) {
2525 p_priv->old_baud = p_priv->baud;
2526 msg.setClocking = 0x01;
049c6b4e
GKH		 2527 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2528 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2529 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2530 __func__, p_priv->baud);
1da177e4 2531 p_priv->baud = 9600;
049c6b4e 2532 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
1da177e4
LT		 2533 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2534 }
2535 msg.setRxMode = 1;
2536 msg.setTxMode = 1;
2537 }
2538
2539 /* modes must always be correctly specified */
deb91685 2540 if (p_priv->baud > 57600) {
1da177e4
LT		 2541 msg.rxMode = RXMODE_DMA;
2542 msg.txMode = TXMODE_DMA;
deb91685 2543 } else {
1da177e4
LT		 2544 msg.rxMode = RXMODE_BYHAND;
2545 msg.txMode = TXMODE_BYHAND;
2546 }
2547
2b982ab1 2548 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
1da177e4
LT		 2549 switch (p_priv->cflag & CSIZE) {
2550 case CS5:
2551 msg.lcr |= USA_DATABITS_5;
2552 break;
2553 case CS6:
2554 msg.lcr |= USA_DATABITS_6;
2555 break;
2556 case CS7:
2557 msg.lcr |= USA_DATABITS_7;
2558 break;
2559 case CS8:
2560 msg.lcr |= USA_DATABITS_8;
2561 break;
2562 }
2563 if (p_priv->cflag & PARENB) {
2564 /* note USA_PARITY_NONE == 0 */
2b982ab1 2565 msg.lcr |= (p_priv->cflag & PARODD) ?
deb91685 2566 USA_PARITY_ODD : USA_PARITY_EVEN;
1da177e4
LT		 2567 }
2568 if (p_priv->old_cflag != p_priv->cflag) {
2569 p_priv->old_cflag = p_priv->cflag;
2570 msg.setLcr = 0x01;
2571 }
2572
2573 if (p_priv->flow_control == flow_cts)
2574 msg.txFlowControl = TXFLOW_CTS;
2575 msg.setTxFlowControl = 0x01;
2576 msg.setRxFlowControl = 0x01;
deb91685 2577
1da177e4 2578 msg.rxForwardingLength = 16;
deb91685 2579 msg.rxForwardingTimeout = 16;
1da177e4
LT		 2580 msg.txAckSetting = 0;
2581 msg.xonChar = 17;
2582 msg.xoffChar = 19;
2583
deb91685 2584 /* Opening port */
1da177e4
LT		 2585 if (reset_port == 1) {
2586 msg.portEnabled = 1;
2587 msg.rxFlush = 1;
2588 msg.txBreak = (p_priv->break_on);
2589 }
2590 /* Closing port */
deb91685 2591 else if (reset_port == 2)
1da177e4 2592 msg.portEnabled = 0;
1da177e4
LT		 2593 /* Sending intermediate configs */
2594 else {
1f87158e 2595 msg.portEnabled = 1;
1da177e4
LT		 2596 msg.txBreak = (p_priv->break_on);
2597 }
2598
deb91685 2599 /* Do handshaking outputs */
1da177e4
LT		 2600 msg.setRts = 0x01;
2601 msg.rts = p_priv->rts_state;
2602
2603 msg.setDtr = 0x01;
2604 msg.dtr = p_priv->dtr_state;
deb91685 2605
1da177e4 2606 p_priv->resend_cont = 0;
deb91685
AC		 2607 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2608
1da177e4
LT		 2609 /* send the data out the device on control endpoint */
2610 this_urb->transfer_buffer_length = sizeof(msg);
2611
deb91685
AC		 2612 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2613 if (err != 0)
049c6b4e 2614 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
a5b6f60c 2615 return 0;
1da177e4
LT		 2616}
2617
0ca1268e
LM		 2618static int keyspan_usa67_send_setup(struct usb_serial *serial,
2619 struct usb_serial_port *port,
2620 int reset_port)
2621{
2622 struct keyspan_usa67_portControlMessage msg;
2623 struct keyspan_serial_private *s_priv;
2624 struct keyspan_port_private *p_priv;
2625 const struct keyspan_device_details *d_details;
2626 struct urb *this_urb;
2627 int err, device_port;
2628
0ca1268e
LM		 2629 s_priv = usb_get_serial_data(serial);
2630 p_priv = usb_get_serial_port_data(port);
2631 d_details = s_priv->device_details;
2632
2633 this_urb = s_priv->glocont_urb;
2634
2635 /* Work out which port within the device is being setup */
1143832e 2636 device_port = port->port_number;
0ca1268e
LM		 2637
2638 /* Make sure we have an urb then send the message */
2639 if (this_urb == NULL) {
1143832e 2640 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
0ca1268e
LM		 2641 return -1;
2642 }
2643
2644 /* Save reset port val for resend.
2645 Don't overwrite resend for open/close condition. */
2646 if ((reset_port + 1) > p_priv->resend_cont)
2647 p_priv->resend_cont = reset_port + 1;
2648 if (this_urb->status == -EINPROGRESS) {
049c6b4e 2649 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
0ca1268e 2650 mdelay(5);
deb91685 2651 return -1;
0ca1268e
LM		 2652 }
2653
2654 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2655
2656 msg.port = device_port;
2657
2658 /* Only set baud rate if it's changed */
2659 if (p_priv->old_baud != p_priv->baud) {
2660 p_priv->old_baud = p_priv->baud;
2661 msg.setClocking = 0xff;
049c6b4e
GKH		 2662 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2663 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2664 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2665 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2666 __func__, p_priv->baud);
0ca1268e
LM		 2667 msg.baudLo = 0;
2668 msg.baudHi = 125; /* Values for 9600 baud */
2669 msg.prescaler = 10;
2670 }
2671 msg.setPrescaler = 0xff;
2672 }
2673
2674 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2675 switch (p_priv->cflag & CSIZE) {
2676 case CS5:
2677 msg.lcr |= USA_DATABITS_5;
2678 break;
2679 case CS6:
2680 msg.lcr |= USA_DATABITS_6;
2681 break;
2682 case CS7:
2683 msg.lcr |= USA_DATABITS_7;
2684 break;
2685 case CS8:
2686 msg.lcr |= USA_DATABITS_8;
2687 break;
2688 }
2689 if (p_priv->cflag & PARENB) {
2690 /* note USA_PARITY_NONE == 0 */
2b982ab1 2691 msg.lcr |= (p_priv->cflag & PARODD) ?
deb91685 2692 USA_PARITY_ODD : USA_PARITY_EVEN;
0ca1268e
LM		 2693 }
2694 msg.setLcr = 0xff;
2695
2696 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2697 msg.xonFlowControl = 0;
2698 msg.setFlowControl = 0xff;
2699 msg.forwardingLength = 16;
2700 msg.xonChar = 17;
2701 msg.xoffChar = 19;
2702
2703 if (reset_port == 1) {
2704 /* Opening port */
2705 msg._txOn = 1;
2706 msg._txOff = 0;
2707 msg.txFlush = 0;
2708 msg.txBreak = 0;
2709 msg.rxOn = 1;
2710 msg.rxOff = 0;
2711 msg.rxFlush = 1;
2712 msg.rxForward = 0;
2713 msg.returnStatus = 0;
2714 msg.resetDataToggle = 0xff;
2715 } else if (reset_port == 2) {
2716 /* Closing port */
2717 msg._txOn = 0;
2718 msg._txOff = 1;
2719 msg.txFlush = 0;
2720 msg.txBreak = 0;
2721 msg.rxOn = 0;
2722 msg.rxOff = 1;
2723 msg.rxFlush = 1;
2724 msg.rxForward = 0;
2725 msg.returnStatus = 0;
2726 msg.resetDataToggle = 0;
2727 } else {
2728 /* Sending intermediate configs */
deb91685 2729 msg._txOn = (!p_priv->break_on);
0ca1268e
LM		 2730 msg._txOff = 0;
2731 msg.txFlush = 0;
2732 msg.txBreak = (p_priv->break_on);
2733 msg.rxOn = 0;
2734 msg.rxOff = 0;
2735 msg.rxFlush = 0;
2736 msg.rxForward = 0;
2737 msg.returnStatus = 0;
2738 msg.resetDataToggle = 0x0;
2739 }
2740
2741 /* Do handshaking outputs */
2742 msg.setTxTriState_setRts = 0xff;
2743 msg.txTriState_rts = p_priv->rts_state;
2744
2745 msg.setHskoa_setDtr = 0xff;
2746 msg.hskoa_dtr = p_priv->dtr_state;
2747
2748 p_priv->resend_cont = 0;
2749
2750 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2751
2752 /* send the data out the device on control endpoint */
2753 this_urb->transfer_buffer_length = sizeof(msg);
0ca1268e
LM		 2754
2755 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2756 if (err != 0)
049c6b4e 2757 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
a5b6f60c 2758 return 0;
0ca1268e
LM		 2759}
2760
1da177e4
LT		 2761static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2762{
2763 struct usb_serial *serial = port->serial;
2764 struct keyspan_serial_private *s_priv;
2765 const struct keyspan_device_details *d_details;
2766
1da177e4
LT		 2767 s_priv = usb_get_serial_data(serial);
2768 d_details = s_priv->device_details;
2769
2770 switch (d_details->msg_format) {
2771 case msg_usa26:
2772 keyspan_usa26_send_setup(serial, port, reset_port);
2773 break;
2774 case msg_usa28:
2775 keyspan_usa28_send_setup(serial, port, reset_port);
2776 break;
2777 case msg_usa49:
2778 keyspan_usa49_send_setup(serial, port, reset_port);
2779 break;
2780 case msg_usa90:
2781 keyspan_usa90_send_setup(serial, port, reset_port);
2782 break;
0ca1268e
LM		 2783 case msg_usa67:
2784 keyspan_usa67_send_setup(serial, port, reset_port);
2785 break;
1da177e4
LT		 2786 }
2787}
2788
2789
2790/* Gets called by the "real" driver (ie once firmware is loaded
2791 and renumeration has taken place. */
deb91685 2792static int keyspan_startup(struct usb_serial *serial)
1da177e4
LT		 2793{
2794 int i, err;
1da177e4 2795 struct keyspan_serial_private *s_priv;
1da177e4
LT		 2796 const struct keyspan_device_details *d_details;
2797
1da177e4 2798 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
deb91685
AC		 2799 if (d_details->product_id ==
2800 le16_to_cpu(serial->dev->descriptor.idProduct))
1da177e4
LT		 2801 break;
2802 if (d_details == NULL) {
deb91685
AC		 2803 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2804 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
ff8a43c1 2805 return -ENODEV;
1da177e4
LT		 2806 }
2807
2808 /* Setup private data for serial driver */
80b6ca48 2809 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
10c642d0 2810 if (!s_priv)
1da177e4 2811 return -ENOMEM;
1da177e4 2812
2fcd1c9b
JH		 2813 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL);
2814 if (!s_priv->instat_buf)
2815 goto err_instat_buf;
2816
2817 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL);
2818 if (!s_priv->indat_buf)
2819 goto err_indat_buf;
2820
2821 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL);
2822 if (!s_priv->glocont_buf)
2823 goto err_glocont_buf;
2824
2825 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
2826 if (!s_priv->ctrl_buf)
2827 goto err_ctrl_buf;
2828
1da177e4
LT		 2829 s_priv->device_details = d_details;
2830 usb_set_serial_data(serial, s_priv);
2831
1da177e4
LT		 2832 keyspan_setup_urbs(serial);
2833
0ca1268e 2834 if (s_priv->instat_urb != NULL) {
0ca1268e
LM		 2835 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2836 if (err != 0)
7ebcb334 2837 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
0ca1268e
LM		 2838 }
2839 if (s_priv->indat_urb != NULL) {
0ca1268e
LM		 2840 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2841 if (err != 0)
7ebcb334 2842 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
1da177e4 2843 }
deb91685 2844
a5b6f60c 2845 return 0;
2fcd1c9b
JH		 2846
2847err_ctrl_buf:
2848 kfree(s_priv->glocont_buf);
2849err_glocont_buf:
2850 kfree(s_priv->indat_buf);
2851err_indat_buf:
2852 kfree(s_priv->instat_buf);
2853err_instat_buf:
2854 kfree(s_priv);
2855
2856 return -ENOMEM;
1da177e4
LT		 2857}
2858
f9c99bb8 2859static void keyspan_disconnect(struct usb_serial *serial)
1da177e4 2860{
f79b2d0f 2861 struct keyspan_serial_private *s_priv;
1da177e4 2862
1da177e4
LT		 2863 s_priv = usb_get_serial_data(serial);
2864
61924505
JH		 2865 usb_kill_urb(s_priv->instat_urb);
2866 usb_kill_urb(s_priv->glocont_urb);
2867 usb_kill_urb(s_priv->indat_urb);
f79b2d0f
JH		 2868}
2869
2870static void keyspan_release(struct usb_serial *serial)
2871{
2872 struct keyspan_serial_private *s_priv;
2873
2874 s_priv = usb_get_serial_data(serial);
1da177e4 2875
35be1a71
JH		 2876 /* Make sure to unlink the URBs submitted in attach. */
2877 usb_kill_urb(s_priv->instat_urb);
2878 usb_kill_urb(s_priv->indat_urb);
2879
1cadc137 2880 usb_free_urb(s_priv->instat_urb);
0ca1268e 2881 usb_free_urb(s_priv->indat_urb);
1cadc137 2882 usb_free_urb(s_priv->glocont_urb);
f79b2d0f 2883
2fcd1c9b
JH		 2884 kfree(s_priv->ctrl_buf);
2885 kfree(s_priv->glocont_buf);
2886 kfree(s_priv->indat_buf);
2887 kfree(s_priv->instat_buf);
2888
f79b2d0f 2889 kfree(s_priv);
f9c99bb8
AS		 2890}
2891
f79b2d0f 2892static int keyspan_port_probe(struct usb_serial_port *port)
f9c99bb8 2893{
f79b2d0f 2894 struct usb_serial *serial = port->serial;
f0e3e35c 2895 struct keyspan_serial_private *s_priv;
f79b2d0f
JH		 2896 struct keyspan_port_private *p_priv;
2897 const struct keyspan_device_details *d_details;
2898 struct callbacks *cback;
2899 int endp;
2900 int port_num;
2901 int i;
f9c99bb8 2902
f9c99bb8 2903 s_priv = usb_get_serial_data(serial);
f79b2d0f 2904 d_details = s_priv->device_details;
1da177e4 2905
f79b2d0f
JH		 2906 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL);
2907 if (!p_priv)
2908 return -ENOMEM;
1da177e4 2909
bad41a5b
JH		 2910 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
2911 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
2912 if (!p_priv->in_buffer[i])
2913 goto err_in_buffer;
2914 }
2915
2916 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
2917 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
2918 if (!p_priv->out_buffer[i])
2919 goto err_out_buffer;
2920 }
2921
2922 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
2923 if (!p_priv->inack_buffer)
2924 goto err_inack_buffer;
2925
2926 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
2927 if (!p_priv->outcont_buffer)
2928 goto err_outcont_buffer;
2929
f79b2d0f
JH		 2930 p_priv->device_details = d_details;
2931
2932 /* Setup values for the various callback routines */
2933 cback = &keyspan_callbacks[d_details->msg_format];
2934
1143832e 2935 port_num = port->port_number;
f79b2d0f
JH		 2936
2937 /* Do indat endpoints first, once for each flip */
2938 endp = d_details->indat_endpoints[port_num];
2939 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) {
2940 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp,
2941 USB_DIR_IN, port,
bad41a5b
JH		 2942 p_priv->in_buffer[i],
2943 IN_BUFLEN,
f79b2d0f
JH		 2944 cback->indat_callback);
2945 }
2946 /* outdat endpoints also have flip */
2947 endp = d_details->outdat_endpoints[port_num];
2948 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) {
2949 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp,
2950 USB_DIR_OUT, port,
bad41a5b
JH		 2951 p_priv->out_buffer[i],
2952 OUT_BUFLEN,
f79b2d0f
JH		 2953 cback->outdat_callback);
2954 }
2955 /* inack endpoint */
2956 p_priv->inack_urb = keyspan_setup_urb(serial,
2957 d_details->inack_endpoints[port_num],
2958 USB_DIR_IN, port,
bad41a5b
JH		 2959 p_priv->inack_buffer,
2960 INACK_BUFLEN,
f79b2d0f
JH		 2961 cback->inack_callback);
2962 /* outcont endpoint */
2963 p_priv->outcont_urb = keyspan_setup_urb(serial,
2964 d_details->outcont_endpoints[port_num],
2965 USB_DIR_OUT, port,
bad41a5b
JH		 2966 p_priv->outcont_buffer,
2967 OUTCONT_BUFLEN,
f79b2d0f
JH		 2968 cback->outcont_callback);
2969
2970 usb_set_serial_port_data(port, p_priv);
2971
2972 return 0;
bad41a5b
JH		 2973
2974err_outcont_buffer:
2975 kfree(p_priv->inack_buffer);
2976err_inack_buffer:
2977 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2978 kfree(p_priv->out_buffer[i]);
2979err_out_buffer:
2980 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2981 kfree(p_priv->in_buffer[i]);
2982err_in_buffer:
2983 kfree(p_priv);
2984
2985 return -ENOMEM;
f79b2d0f
JH		 2986}
2987
2988static int keyspan_port_remove(struct usb_serial_port *port)
2989{
2990 struct keyspan_port_private *p_priv;
2991 int i;
2992
2993 p_priv = usb_get_serial_port_data(port);
2994
61924505
JH		 2995 usb_kill_urb(p_priv->inack_urb);
2996 usb_kill_urb(p_priv->outcont_urb);
f79b2d0f 2997 for (i = 0; i < 2; i++) {
61924505
JH		 2998 usb_kill_urb(p_priv->in_urbs[i]);
2999 usb_kill_urb(p_priv->out_urbs[i]);
f79b2d0f
JH		 3000 }
3001
3002 usb_free_urb(p_priv->inack_urb);
3003 usb_free_urb(p_priv->outcont_urb);
3004 for (i = 0; i < 2; i++) {
3005 usb_free_urb(p_priv->in_urbs[i]);
3006 usb_free_urb(p_priv->out_urbs[i]);
1da177e4 3007 }
f79b2d0f 3008
bad41a5b
JH		 3009 kfree(p_priv->outcont_buffer);
3010 kfree(p_priv->inack_buffer);
3011 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
3012 kfree(p_priv->out_buffer[i]);
3013 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
3014 kfree(p_priv->in_buffer[i]);
3015
f79b2d0f
JH		 3016 kfree(p_priv);
3017
3018 return 0;
1da177e4
LT		 3019}
3020
beabdc3c
JH		 3021/* Structs for the devices, pre and post renumeration. */
3022static struct usb_serial_driver keyspan_pre_device = {
3023 .driver = {
3024 .owner = THIS_MODULE,
3025 .name = "keyspan_no_firm",
3026 },
3027 .description = "Keyspan - (without firmware)",
3028 .id_table = keyspan_pre_ids,
3029 .num_ports = 1,
3030 .attach = keyspan_fake_startup,
3031};
3032
3033static struct usb_serial_driver keyspan_1port_device = {
3034 .driver = {
3035 .owner = THIS_MODULE,
3036 .name = "keyspan_1",
3037 },
3038 .description = "Keyspan 1 port adapter",
3039 .id_table = keyspan_1port_ids,
3040 .num_ports = 1,
3041 .open = keyspan_open,
3042 .close = keyspan_close,
3043 .dtr_rts = keyspan_dtr_rts,
3044 .write = keyspan_write,
3045 .write_room = keyspan_write_room,
3046 .set_termios = keyspan_set_termios,
3047 .break_ctl = keyspan_break_ctl,
3048 .tiocmget = keyspan_tiocmget,
3049 .tiocmset = keyspan_tiocmset,
3050 .attach = keyspan_startup,
3051 .disconnect = keyspan_disconnect,
3052 .release = keyspan_release,
3053 .port_probe = keyspan_port_probe,
3054 .port_remove = keyspan_port_remove,
3055};
3056
3057static struct usb_serial_driver keyspan_2port_device = {
3058 .driver = {
3059 .owner = THIS_MODULE,
3060 .name = "keyspan_2",
3061 },
3062 .description = "Keyspan 2 port adapter",
3063 .id_table = keyspan_2port_ids,
3064 .num_ports = 2,
3065 .open = keyspan_open,
3066 .close = keyspan_close,
3067 .dtr_rts = keyspan_dtr_rts,
3068 .write = keyspan_write,
3069 .write_room = keyspan_write_room,
3070 .set_termios = keyspan_set_termios,
3071 .break_ctl = keyspan_break_ctl,
3072 .tiocmget = keyspan_tiocmget,
3073 .tiocmset = keyspan_tiocmset,
3074 .attach = keyspan_startup,
3075 .disconnect = keyspan_disconnect,
3076 .release = keyspan_release,
3077 .port_probe = keyspan_port_probe,
3078 .port_remove = keyspan_port_remove,
3079};
3080
3081static struct usb_serial_driver keyspan_4port_device = {
3082 .driver = {
3083 .owner = THIS_MODULE,
3084 .name = "keyspan_4",
3085 },
3086 .description = "Keyspan 4 port adapter",
3087 .id_table = keyspan_4port_ids,
3088 .num_ports = 4,
3089 .open = keyspan_open,
3090 .close = keyspan_close,
3091 .dtr_rts = keyspan_dtr_rts,
3092 .write = keyspan_write,
3093 .write_room = keyspan_write_room,
3094 .set_termios = keyspan_set_termios,
3095 .break_ctl = keyspan_break_ctl,
3096 .tiocmget = keyspan_tiocmget,
3097 .tiocmset = keyspan_tiocmset,
3098 .attach = keyspan_startup,
3099 .disconnect = keyspan_disconnect,
3100 .release = keyspan_release,
3101 .port_probe = keyspan_port_probe,
3102 .port_remove = keyspan_port_remove,
3103};
3104
3105static struct usb_serial_driver * const serial_drivers[] = {
3106 &keyspan_pre_device, &keyspan_1port_device,
3107 &keyspan_2port_device, &keyspan_4port_device, NULL
3108};
3109
3110module_usb_serial_driver(serial_drivers, keyspan_ids_combined);
3111
deb91685
AC		 3112MODULE_AUTHOR(DRIVER_AUTHOR);
3113MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4
LT		 3114MODULE_LICENSE("GPL");
3115
2971c579
DW		 3116MODULE_FIRMWARE("keyspan/usa28.fw");
3117MODULE_FIRMWARE("keyspan/usa28x.fw");
3118MODULE_FIRMWARE("keyspan/usa28xa.fw");
3119MODULE_FIRMWARE("keyspan/usa28xb.fw");
3120MODULE_FIRMWARE("keyspan/usa19.fw");
3121MODULE_FIRMWARE("keyspan/usa19qi.fw");
3122MODULE_FIRMWARE("keyspan/mpr.fw");
3123MODULE_FIRMWARE("keyspan/usa19qw.fw");
3124MODULE_FIRMWARE("keyspan/usa18x.fw");
3125MODULE_FIRMWARE("keyspan/usa19w.fw");
3126MODULE_FIRMWARE("keyspan/usa49w.fw");
3127MODULE_FIRMWARE("keyspan/usa49wlc.fw");
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