1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 Keyspan USB to Serial Converter driver
4
5 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
6 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
7
8 See http://blemings.org/hugh/keyspan.html for more information.
9
10 Code in this driver inspired by and in a number of places taken
11 from Brian Warner's original Keyspan-PDA driver.
12
13 This driver has been put together with the support of Innosys, Inc.
14 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
15 Thanks Guys :)
16
17 Thanks to Paulus for miscellaneous tidy ups, some largish chunks
18 of much nicer and/or completely new code and (perhaps most uniquely)
19 having the patience to sit down and explain why and where he'd changed
20 stuff.
21
22 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
23 staff in their work on open source projects.
24 */
25
26
27 #include <linux/kernel.h>
28 #include <linux/jiffies.h>
29 #include <linux/errno.h>
30 #include <linux/slab.h>
31 #include <linux/tty.h>
32 #include <linux/tty_driver.h>
33 #include <linux/tty_flip.h>
34 #include <linux/module.h>
35 #include <linux/spinlock.h>
36 #include <linux/uaccess.h>
37 #include <linux/usb.h>
38 #include <linux/usb/serial.h>
39 #include <linux/usb/ezusb.h>
40
41 #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
42 #define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
43
44 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port);
45
46 static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
47 u32 baud_rate, u32 baudclk,
48 u8 *rate_hi, u8 *rate_low,
49 u8 *prescaler, int portnum);
50 static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
51 u32 baud_rate, u32 baudclk,
52 u8 *rate_hi, u8 *rate_low,
53 u8 *prescaler, int portnum);
54 static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
55 u32 baud_rate, u32 baudclk,
56 u8 *rate_hi, u8 *rate_low,
57 u8 *prescaler, int portnum);
58 static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
59 u32 baud_rate, u32 baudclk,
60 u8 *rate_hi, u8 *rate_low,
61 u8 *prescaler, int portnum);
62
63 static int keyspan_usa28_send_setup(struct usb_serial *serial,
64 struct usb_serial_port *port,
65 int reset_port);
66 static int keyspan_usa26_send_setup(struct usb_serial *serial,
67 struct usb_serial_port *port,
68 int reset_port);
69 static int keyspan_usa49_send_setup(struct usb_serial *serial,
70 struct usb_serial_port *port,
71 int reset_port);
72 static int keyspan_usa90_send_setup(struct usb_serial *serial,
73 struct usb_serial_port *port,
74 int reset_port);
75 static int keyspan_usa67_send_setup(struct usb_serial *serial,
76 struct usb_serial_port *port,
77 int reset_port);
78
79 /* Values used for baud rate calculation - device specific */
80 #define KEYSPAN_INVALID_BAUD_RATE (-1)
81 #define KEYSPAN_BAUD_RATE_OK (0)
82 #define KEYSPAN_USA18X_BAUDCLK (12000000L) /* a guess */
83 #define KEYSPAN_USA19_BAUDCLK (12000000L)
84 #define KEYSPAN_USA19W_BAUDCLK (24000000L)
85 #define KEYSPAN_USA19HS_BAUDCLK (14769231L)
86 #define KEYSPAN_USA28_BAUDCLK (1843200L)
87 #define KEYSPAN_USA28X_BAUDCLK (12000000L)
88 #define KEYSPAN_USA49W_BAUDCLK (48000000L)
89
90 /* Some constants used to characterise each device. */
91 #define KEYSPAN_MAX_NUM_PORTS (4)
92 #define KEYSPAN_MAX_FLIPS (2)
93
94 /*
95 * Device info for the Keyspan serial converter, used by the overall
96 * usb-serial probe function.
97 */
98 #define KEYSPAN_VENDOR_ID (0x06cd)
99
100 /* Product IDs for the products supported, pre-renumeration */
101 #define keyspan_usa18x_pre_product_id 0x0105
102 #define keyspan_usa19_pre_product_id 0x0103
103 #define keyspan_usa19qi_pre_product_id 0x010b
104 #define keyspan_mpr_pre_product_id 0x011b
105 #define keyspan_usa19qw_pre_product_id 0x0118
106 #define keyspan_usa19w_pre_product_id 0x0106
107 #define keyspan_usa28_pre_product_id 0x0101
108 #define keyspan_usa28x_pre_product_id 0x0102
109 #define keyspan_usa28xa_pre_product_id 0x0114
110 #define keyspan_usa28xb_pre_product_id 0x0113
111 #define keyspan_usa49w_pre_product_id 0x0109
112 #define keyspan_usa49wlc_pre_product_id 0x011a
113
114 /*
115 * Product IDs post-renumeration. Note that the 28x and 28xb have the same
116 * id's post-renumeration but behave identically so it's not an issue. As
117 * such, the 28xb is not listed in any of the device tables.
118 */
119 #define keyspan_usa18x_product_id 0x0112
120 #define keyspan_usa19_product_id 0x0107
121 #define keyspan_usa19qi_product_id 0x010c
122 #define keyspan_usa19hs_product_id 0x0121
123 #define keyspan_mpr_product_id 0x011c
124 #define keyspan_usa19qw_product_id 0x0119
125 #define keyspan_usa19w_product_id 0x0108
126 #define keyspan_usa28_product_id 0x010f
127 #define keyspan_usa28x_product_id 0x0110
128 #define keyspan_usa28xa_product_id 0x0115
129 #define keyspan_usa28xb_product_id 0x0110
130 #define keyspan_usa28xg_product_id 0x0135
131 #define keyspan_usa49w_product_id 0x010a
132 #define keyspan_usa49wlc_product_id 0x012a
133 #define keyspan_usa49wg_product_id 0x0131
134
135 struct keyspan_device_details {
136 /* product ID value */
137 int product_id;
138
139 enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format;
140
141 /* Number of physical ports */
142 int num_ports;
143
144 /* 1 if endpoint flipping used on input, 0 if not */
145 int indat_endp_flip;
146
147 /* 1 if endpoint flipping used on output, 0 if not */
148 int outdat_endp_flip;
149
150 /*
151 * Table mapping input data endpoint IDs to physical port
152 * number and flip if used
153 */
154 int indat_endpoints[KEYSPAN_MAX_NUM_PORTS];
155
156 /* Same for output endpoints */
157 int outdat_endpoints[KEYSPAN_MAX_NUM_PORTS];
158
159 /* Input acknowledge endpoints */
160 int inack_endpoints[KEYSPAN_MAX_NUM_PORTS];
161
162 /* Output control endpoints */
163 int outcont_endpoints[KEYSPAN_MAX_NUM_PORTS];
164
165 /* Endpoint used for input status */
166 int instat_endpoint;
167
168 /* Endpoint used for input data 49WG only */
169 int indat_endpoint;
170
171 /* Endpoint used for global control functions */
172 int glocont_endpoint;
173
174 int (*calculate_baud_rate)(struct usb_serial_port *port,
175 u32 baud_rate, u32 baudclk,
176 u8 *rate_hi, u8 *rate_low, u8 *prescaler,
177 int portnum);
178 u32 baudclk;
179 };
180
181 /*
182 * Now for each device type we setup the device detail structure with the
183 * appropriate information (provided in Keyspan's documentation)
184 */
185
186 static const struct keyspan_device_details usa18x_device_details = {
187 .product_id = keyspan_usa18x_product_id,
188 .msg_format = msg_usa26,
189 .num_ports = 1,
190 .indat_endp_flip = 0,
191 .outdat_endp_flip = 1,
192 .indat_endpoints = {0x81},
193 .outdat_endpoints = {0x01},
194 .inack_endpoints = {0x85},
195 .outcont_endpoints = {0x05},
196 .instat_endpoint = 0x87,
197 .indat_endpoint = -1,
198 .glocont_endpoint = 0x07,
199 .calculate_baud_rate = keyspan_usa19w_calc_baud,
200 .baudclk = KEYSPAN_USA18X_BAUDCLK,
201 };
202
203 static const struct keyspan_device_details usa19_device_details = {
204 .product_id = keyspan_usa19_product_id,
205 .msg_format = msg_usa28,
206 .num_ports = 1,
207 .indat_endp_flip = 1,
208 .outdat_endp_flip = 1,
209 .indat_endpoints = {0x81},
210 .outdat_endpoints = {0x01},
211 .inack_endpoints = {0x83},
212 .outcont_endpoints = {0x03},
213 .instat_endpoint = 0x84,
214 .indat_endpoint = -1,
215 .glocont_endpoint = -1,
216 .calculate_baud_rate = keyspan_usa19_calc_baud,
217 .baudclk = KEYSPAN_USA19_BAUDCLK,
218 };
219
220 static const struct keyspan_device_details usa19qi_device_details = {
221 .product_id = keyspan_usa19qi_product_id,
222 .msg_format = msg_usa28,
223 .num_ports = 1,
224 .indat_endp_flip = 1,
225 .outdat_endp_flip = 1,
226 .indat_endpoints = {0x81},
227 .outdat_endpoints = {0x01},
228 .inack_endpoints = {0x83},
229 .outcont_endpoints = {0x03},
230 .instat_endpoint = 0x84,
231 .indat_endpoint = -1,
232 .glocont_endpoint = -1,
233 .calculate_baud_rate = keyspan_usa28_calc_baud,
234 .baudclk = KEYSPAN_USA19_BAUDCLK,
235 };
236
237 static const struct keyspan_device_details mpr_device_details = {
238 .product_id = keyspan_mpr_product_id,
239 .msg_format = msg_usa28,
240 .num_ports = 1,
241 .indat_endp_flip = 1,
242 .outdat_endp_flip = 1,
243 .indat_endpoints = {0x81},
244 .outdat_endpoints = {0x01},
245 .inack_endpoints = {0x83},
246 .outcont_endpoints = {0x03},
247 .instat_endpoint = 0x84,
248 .indat_endpoint = -1,
249 .glocont_endpoint = -1,
250 .calculate_baud_rate = keyspan_usa28_calc_baud,
251 .baudclk = KEYSPAN_USA19_BAUDCLK,
252 };
253
254 static const struct keyspan_device_details usa19qw_device_details = {
255 .product_id = keyspan_usa19qw_product_id,
256 .msg_format = msg_usa26,
257 .num_ports = 1,
258 .indat_endp_flip = 0,
259 .outdat_endp_flip = 1,
260 .indat_endpoints = {0x81},
261 .outdat_endpoints = {0x01},
262 .inack_endpoints = {0x85},
263 .outcont_endpoints = {0x05},
264 .instat_endpoint = 0x87,
265 .indat_endpoint = -1,
266 .glocont_endpoint = 0x07,
267 .calculate_baud_rate = keyspan_usa19w_calc_baud,
268 .baudclk = KEYSPAN_USA19W_BAUDCLK,
269 };
270
271 static const struct keyspan_device_details usa19w_device_details = {
272 .product_id = keyspan_usa19w_product_id,
273 .msg_format = msg_usa26,
274 .num_ports = 1,
275 .indat_endp_flip = 0,
276 .outdat_endp_flip = 1,
277 .indat_endpoints = {0x81},
278 .outdat_endpoints = {0x01},
279 .inack_endpoints = {0x85},
280 .outcont_endpoints = {0x05},
281 .instat_endpoint = 0x87,
282 .indat_endpoint = -1,
283 .glocont_endpoint = 0x07,
284 .calculate_baud_rate = keyspan_usa19w_calc_baud,
285 .baudclk = KEYSPAN_USA19W_BAUDCLK,
286 };
287
288 static const struct keyspan_device_details usa19hs_device_details = {
289 .product_id = keyspan_usa19hs_product_id,
290 .msg_format = msg_usa90,
291 .num_ports = 1,
292 .indat_endp_flip = 0,
293 .outdat_endp_flip = 0,
294 .indat_endpoints = {0x81},
295 .outdat_endpoints = {0x01},
296 .inack_endpoints = {-1},
297 .outcont_endpoints = {0x02},
298 .instat_endpoint = 0x82,
299 .indat_endpoint = -1,
300 .glocont_endpoint = -1,
301 .calculate_baud_rate = keyspan_usa19hs_calc_baud,
302 .baudclk = KEYSPAN_USA19HS_BAUDCLK,
303 };
304
305 static const struct keyspan_device_details usa28_device_details = {
306 .product_id = keyspan_usa28_product_id,
307 .msg_format = msg_usa28,
308 .num_ports = 2,
309 .indat_endp_flip = 1,
310 .outdat_endp_flip = 1,
311 .indat_endpoints = {0x81, 0x83},
312 .outdat_endpoints = {0x01, 0x03},
313 .inack_endpoints = {0x85, 0x86},
314 .outcont_endpoints = {0x05, 0x06},
315 .instat_endpoint = 0x87,
316 .indat_endpoint = -1,
317 .glocont_endpoint = 0x07,
318 .calculate_baud_rate = keyspan_usa28_calc_baud,
319 .baudclk = KEYSPAN_USA28_BAUDCLK,
320 };
321
322 static const struct keyspan_device_details usa28x_device_details = {
323 .product_id = keyspan_usa28x_product_id,
324 .msg_format = msg_usa26,
325 .num_ports = 2,
326 .indat_endp_flip = 0,
327 .outdat_endp_flip = 1,
328 .indat_endpoints = {0x81, 0x83},
329 .outdat_endpoints = {0x01, 0x03},
330 .inack_endpoints = {0x85, 0x86},
331 .outcont_endpoints = {0x05, 0x06},
332 .instat_endpoint = 0x87,
333 .indat_endpoint = -1,
334 .glocont_endpoint = 0x07,
335 .calculate_baud_rate = keyspan_usa19w_calc_baud,
336 .baudclk = KEYSPAN_USA28X_BAUDCLK,
337 };
338
339 static const struct keyspan_device_details usa28xa_device_details = {
340 .product_id = keyspan_usa28xa_product_id,
341 .msg_format = msg_usa26,
342 .num_ports = 2,
343 .indat_endp_flip = 0,
344 .outdat_endp_flip = 1,
345 .indat_endpoints = {0x81, 0x83},
346 .outdat_endpoints = {0x01, 0x03},
347 .inack_endpoints = {0x85, 0x86},
348 .outcont_endpoints = {0x05, 0x06},
349 .instat_endpoint = 0x87,
350 .indat_endpoint = -1,
351 .glocont_endpoint = 0x07,
352 .calculate_baud_rate = keyspan_usa19w_calc_baud,
353 .baudclk = KEYSPAN_USA28X_BAUDCLK,
354 };
355
356 static const struct keyspan_device_details usa28xg_device_details = {
357 .product_id = keyspan_usa28xg_product_id,
358 .msg_format = msg_usa67,
359 .num_ports = 2,
360 .indat_endp_flip = 0,
361 .outdat_endp_flip = 0,
362 .indat_endpoints = {0x84, 0x88},
363 .outdat_endpoints = {0x02, 0x06},
364 .inack_endpoints = {-1, -1},
365 .outcont_endpoints = {-1, -1},
366 .instat_endpoint = 0x81,
367 .indat_endpoint = -1,
368 .glocont_endpoint = 0x01,
369 .calculate_baud_rate = keyspan_usa19w_calc_baud,
370 .baudclk = KEYSPAN_USA28X_BAUDCLK,
371 };
372 /*
373 * We don't need a separate entry for the usa28xb as it appears as a 28x
374 * anyway.
375 */
376
377 static const struct keyspan_device_details usa49w_device_details = {
378 .product_id = keyspan_usa49w_product_id,
379 .msg_format = msg_usa49,
380 .num_ports = 4,
381 .indat_endp_flip = 0,
382 .outdat_endp_flip = 0,
383 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
384 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
385 .inack_endpoints = {-1, -1, -1, -1},
386 .outcont_endpoints = {-1, -1, -1, -1},
387 .instat_endpoint = 0x87,
388 .indat_endpoint = -1,
389 .glocont_endpoint = 0x07,
390 .calculate_baud_rate = keyspan_usa19w_calc_baud,
391 .baudclk = KEYSPAN_USA49W_BAUDCLK,
392 };
393
394 static const struct keyspan_device_details usa49wlc_device_details = {
395 .product_id = keyspan_usa49wlc_product_id,
396 .msg_format = msg_usa49,
397 .num_ports = 4,
398 .indat_endp_flip = 0,
399 .outdat_endp_flip = 0,
400 .indat_endpoints = {0x81, 0x82, 0x83, 0x84},
401 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04},
402 .inack_endpoints = {-1, -1, -1, -1},
403 .outcont_endpoints = {-1, -1, -1, -1},
404 .instat_endpoint = 0x87,
405 .indat_endpoint = -1,
406 .glocont_endpoint = 0x07,
407 .calculate_baud_rate = keyspan_usa19w_calc_baud,
408 .baudclk = KEYSPAN_USA19W_BAUDCLK,
409 };
410
411 static const struct keyspan_device_details usa49wg_device_details = {
412 .product_id = keyspan_usa49wg_product_id,
413 .msg_format = msg_usa49,
414 .num_ports = 4,
415 .indat_endp_flip = 0,
416 .outdat_endp_flip = 0,
417 .indat_endpoints = {-1, -1, -1, -1}, /* single 'global' data in EP */
418 .outdat_endpoints = {0x01, 0x02, 0x04, 0x06},
419 .inack_endpoints = {-1, -1, -1, -1},
420 .outcont_endpoints = {-1, -1, -1, -1},
421 .instat_endpoint = 0x81,
422 .indat_endpoint = 0x88,
423 .glocont_endpoint = 0x00, /* uses control EP */
424 .calculate_baud_rate = keyspan_usa19w_calc_baud,
425 .baudclk = KEYSPAN_USA19W_BAUDCLK,
426 };
427
428 static const struct keyspan_device_details *keyspan_devices[] = {
429 &usa18x_device_details,
430 &usa19_device_details,
431 &usa19qi_device_details,
432 &mpr_device_details,
433 &usa19qw_device_details,
434 &usa19w_device_details,
435 &usa19hs_device_details,
436 &usa28_device_details,
437 &usa28x_device_details,
438 &usa28xa_device_details,
439 &usa28xg_device_details,
440 /* 28xb not required as it renumerates as a 28x */
441 &usa49w_device_details,
442 &usa49wlc_device_details,
443 &usa49wg_device_details,
444 NULL,
445 };
446
447 static const struct usb_device_id keyspan_ids_combined[] = {
448 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
449 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
450 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
451 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
452 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
453 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
454 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
455 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
456 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
457 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
458 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
459 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
460 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
461 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
462 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
463 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
464 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
465 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
466 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
467 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
468 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
469 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
470 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
471 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)},
472 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
473 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
474 { } /* Terminating entry */
475 };
476
477 MODULE_DEVICE_TABLE(usb, keyspan_ids_combined);
478
479 /* usb_device_id table for the pre-firmware download keyspan devices */
480 static const struct usb_device_id keyspan_pre_ids[] = {
481 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) },
482 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) },
483 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) },
484 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) },
485 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) },
486 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) },
487 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) },
488 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) },
489 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) },
490 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) },
491 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) },
492 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) },
493 { } /* Terminating entry */
494 };
495
496 static const struct usb_device_id keyspan_1port_ids[] = {
497 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) },
498 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) },
499 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) },
500 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) },
501 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) },
502 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) },
503 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) },
504 { } /* Terminating entry */
505 };
506
507 static const struct usb_device_id keyspan_2port_ids[] = {
508 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) },
509 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) },
510 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) },
511 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) },
512 { } /* Terminating entry */
513 };
514
515 static const struct usb_device_id keyspan_4port_ids[] = {
516 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) },
517 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)},
518 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)},
519 { } /* Terminating entry */
520 };
521
522 #define INSTAT_BUFLEN 32
523 #define GLOCONT_BUFLEN 64
524 #define INDAT49W_BUFLEN 512
525 #define IN_BUFLEN 64
526 #define OUT_BUFLEN 64
527 #define INACK_BUFLEN 1
528 #define OUTCONT_BUFLEN 64
529
530 /* Per device and per port private data */
531 struct keyspan_serial_private {
532 const struct keyspan_device_details *device_details;
533
534 struct urb *instat_urb;
535 char *instat_buf;
536
537 /* added to support 49wg, where data from all 4 ports comes in
538 on 1 EP and high-speed supported */
539 struct urb *indat_urb;
540 char *indat_buf;
541
542 /* XXX this one probably will need a lock */
543 struct urb *glocont_urb;
544 char *glocont_buf;
545 char *ctrl_buf; /* for EP0 control message */
546 };
547
548 struct keyspan_port_private {
549 /* Keep track of which input & output endpoints to use */
550 int in_flip;
551 int out_flip;
552
553 /* Keep duplicate of device details in each port
554 structure as well - simplifies some of the
555 callback functions etc. */
556 const struct keyspan_device_details *device_details;
557
558 /* Input endpoints and buffer for this port */
559 struct urb *in_urbs[2];
560 char *in_buffer[2];
561 /* Output endpoints and buffer for this port */
562 struct urb *out_urbs[2];
563 char *out_buffer[2];
564
565 /* Input ack endpoint */
566 struct urb *inack_urb;
567 char *inack_buffer;
568
569 /* Output control endpoint */
570 struct urb *outcont_urb;
571 char *outcont_buffer;
572
573 /* Settings for the port */
574 int baud;
575 int old_baud;
576 unsigned int cflag;
577 unsigned int old_cflag;
578 enum {flow_none, flow_cts, flow_xon} flow_control;
579 int rts_state; /* Handshaking pins (outputs) */
580 int dtr_state;
581 int cts_state; /* Handshaking pins (inputs) */
582 int dsr_state;
583 int dcd_state;
584 int ri_state;
585 int break_on;
586
587 unsigned long tx_start_time[2];
588 int resend_cont; /* need to resend control packet */
589 };
590
591 /* Include Keyspan message headers. All current Keyspan Adapters
592 make use of one of five message formats which are referred
593 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and
594 within this driver. */
595 #include "keyspan_usa26msg.h"
596 #include "keyspan_usa28msg.h"
597 #include "keyspan_usa49msg.h"
598 #include "keyspan_usa90msg.h"
599 #include "keyspan_usa67msg.h"
600
601
keyspan_break_ctl(struct tty_struct * tty,int break_state)602 static void keyspan_break_ctl(struct tty_struct *tty, int break_state)
603 {
604 struct usb_serial_port *port = tty->driver_data;
605 struct keyspan_port_private *p_priv;
606
607 p_priv = usb_get_serial_port_data(port);
608
609 if (break_state == -1)
610 p_priv->break_on = 1;
611 else
612 p_priv->break_on = 0;
613
614 keyspan_send_setup(port, 0);
615 }
616
617
keyspan_set_termios(struct tty_struct * tty,struct usb_serial_port * port,struct ktermios * old_termios)618 static void keyspan_set_termios(struct tty_struct *tty,
619 struct usb_serial_port *port, struct ktermios *old_termios)
620 {
621 int baud_rate, device_port;
622 struct keyspan_port_private *p_priv;
623 const struct keyspan_device_details *d_details;
624 unsigned int cflag;
625
626 p_priv = usb_get_serial_port_data(port);
627 d_details = p_priv->device_details;
628 cflag = tty->termios.c_cflag;
629 device_port = port->port_number;
630
631 /* Baud rate calculation takes baud rate as an integer
632 so other rates can be generated if desired. */
633 baud_rate = tty_get_baud_rate(tty);
634 /* If no match or invalid, don't change */
635 if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
636 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
637 /* FIXME - more to do here to ensure rate changes cleanly */
638 /* FIXME - calculate exact rate from divisor ? */
639 p_priv->baud = baud_rate;
640 } else
641 baud_rate = tty_termios_baud_rate(old_termios);
642
643 tty_encode_baud_rate(tty, baud_rate, baud_rate);
644 /* set CTS/RTS handshake etc. */
645 p_priv->cflag = cflag;
646 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
647
648 /* Mark/Space not supported */
649 tty->termios.c_cflag &= ~CMSPAR;
650
651 keyspan_send_setup(port, 0);
652 }
653
keyspan_tiocmget(struct tty_struct * tty)654 static int keyspan_tiocmget(struct tty_struct *tty)
655 {
656 struct usb_serial_port *port = tty->driver_data;
657 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
658 unsigned int value;
659
660 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
661 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
662 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
663 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
664 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
665 ((p_priv->ri_state) ? TIOCM_RNG : 0);
666
667 return value;
668 }
669
keyspan_tiocmset(struct tty_struct * tty,unsigned int set,unsigned int clear)670 static int keyspan_tiocmset(struct tty_struct *tty,
671 unsigned int set, unsigned int clear)
672 {
673 struct usb_serial_port *port = tty->driver_data;
674 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
675
676 if (set & TIOCM_RTS)
677 p_priv->rts_state = 1;
678 if (set & TIOCM_DTR)
679 p_priv->dtr_state = 1;
680 if (clear & TIOCM_RTS)
681 p_priv->rts_state = 0;
682 if (clear & TIOCM_DTR)
683 p_priv->dtr_state = 0;
684 keyspan_send_setup(port, 0);
685 return 0;
686 }
687
688 /* Write function is similar for the four protocols used
689 with only a minor change for usa90 (usa19hs) required */
keyspan_write(struct tty_struct * tty,struct usb_serial_port * port,const unsigned char * buf,int count)690 static int keyspan_write(struct tty_struct *tty,
691 struct usb_serial_port *port, const unsigned char *buf, int count)
692 {
693 struct keyspan_port_private *p_priv;
694 const struct keyspan_device_details *d_details;
695 int flip;
696 int left, todo;
697 struct urb *this_urb;
698 int err, maxDataLen, dataOffset;
699
700 p_priv = usb_get_serial_port_data(port);
701 d_details = p_priv->device_details;
702
703 if (d_details->msg_format == msg_usa90) {
704 maxDataLen = 64;
705 dataOffset = 0;
706 } else {
707 maxDataLen = 63;
708 dataOffset = 1;
709 }
710
711 dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count,
712 p_priv->out_flip);
713
714 for (left = count; left > 0; left -= todo) {
715 todo = left;
716 if (todo > maxDataLen)
717 todo = maxDataLen;
718
719 flip = p_priv->out_flip;
720
721 /* Check we have a valid urb/endpoint before we use it... */
722 this_urb = p_priv->out_urbs[flip];
723 if (this_urb == NULL) {
724 /* no bulk out, so return 0 bytes written */
725 dev_dbg(&port->dev, "%s - no output urb :(\n", __func__);
726 return count;
727 }
728
729 dev_dbg(&port->dev, "%s - endpoint %x flip %d\n",
730 __func__, usb_pipeendpoint(this_urb->pipe), flip);
731
732 if (this_urb->status == -EINPROGRESS) {
733 if (time_before(jiffies,
734 p_priv->tx_start_time[flip] + 10 * HZ))
735 break;
736 usb_unlink_urb(this_urb);
737 break;
738 }
739
740 /* First byte in buffer is "last flag" (except for usa19hx)
741 - unused so for now so set to zero */
742 ((char *)this_urb->transfer_buffer)[0] = 0;
743
744 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
745 buf += todo;
746
747 /* send the data out the bulk port */
748 this_urb->transfer_buffer_length = todo + dataOffset;
749
750 err = usb_submit_urb(this_urb, GFP_ATOMIC);
751 if (err != 0)
752 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err);
753 p_priv->tx_start_time[flip] = jiffies;
754
755 /* Flip for next time if usa26 or usa28 interface
756 (not used on usa49) */
757 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
758 }
759
760 return count - left;
761 }
762
usa26_indat_callback(struct urb * urb)763 static void usa26_indat_callback(struct urb *urb)
764 {
765 int i, err;
766 int endpoint;
767 struct usb_serial_port *port;
768 unsigned char *data = urb->transfer_buffer;
769 int status = urb->status;
770
771 endpoint = usb_pipeendpoint(urb->pipe);
772
773 if (status) {
774 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
775 __func__, status, endpoint);
776 return;
777 }
778
779 port = urb->context;
780 if (urb->actual_length) {
781 /* 0x80 bit is error flag */
782 if ((data[0] & 0x80) == 0) {
783 /* no errors on individual bytes, only
784 possible overrun err */
785 if (data[0] & RXERROR_OVERRUN) {
786 tty_insert_flip_char(&port->port, 0,
787 TTY_OVERRUN);
788 }
789 for (i = 1; i < urb->actual_length ; ++i)
790 tty_insert_flip_char(&port->port, data[i],
791 TTY_NORMAL);
792 } else {
793 /* some bytes had errors, every byte has status */
794 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
795 for (i = 0; i + 1 < urb->actual_length; i += 2) {
796 int stat = data[i];
797 int flag = TTY_NORMAL;
798
799 if (stat & RXERROR_OVERRUN) {
800 tty_insert_flip_char(&port->port, 0,
801 TTY_OVERRUN);
802 }
803 /* XXX should handle break (0x10) */
804 if (stat & RXERROR_PARITY)
805 flag = TTY_PARITY;
806 else if (stat & RXERROR_FRAMING)
807 flag = TTY_FRAME;
808
809 tty_insert_flip_char(&port->port, data[i+1],
810 flag);
811 }
812 }
813 tty_flip_buffer_push(&port->port);
814 }
815
816 /* Resubmit urb so we continue receiving */
817 err = usb_submit_urb(urb, GFP_ATOMIC);
818 if (err != 0)
819 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
820 }
821
822 /* Outdat handling is common for all devices */
usa2x_outdat_callback(struct urb * urb)823 static void usa2x_outdat_callback(struct urb *urb)
824 {
825 struct usb_serial_port *port;
826 struct keyspan_port_private *p_priv;
827
828 port = urb->context;
829 p_priv = usb_get_serial_port_data(port);
830 dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]);
831
832 usb_serial_port_softint(port);
833 }
834
usa26_inack_callback(struct urb * urb)835 static void usa26_inack_callback(struct urb *urb)
836 {
837 }
838
usa26_outcont_callback(struct urb * urb)839 static void usa26_outcont_callback(struct urb *urb)
840 {
841 struct usb_serial_port *port;
842 struct keyspan_port_private *p_priv;
843
844 port = urb->context;
845 p_priv = usb_get_serial_port_data(port);
846
847 if (p_priv->resend_cont) {
848 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
849 keyspan_usa26_send_setup(port->serial, port,
850 p_priv->resend_cont - 1);
851 }
852 }
853
usa26_instat_callback(struct urb * urb)854 static void usa26_instat_callback(struct urb *urb)
855 {
856 unsigned char *data = urb->transfer_buffer;
857 struct keyspan_usa26_portStatusMessage *msg;
858 struct usb_serial *serial;
859 struct usb_serial_port *port;
860 struct keyspan_port_private *p_priv;
861 int old_dcd_state, err;
862 int status = urb->status;
863
864 serial = urb->context;
865
866 if (status) {
867 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
868 __func__, status);
869 return;
870 }
871 if (urb->actual_length != 9) {
872 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
873 goto exit;
874 }
875
876 msg = (struct keyspan_usa26_portStatusMessage *)data;
877
878 /* Check port number from message and retrieve private data */
879 if (msg->port >= serial->num_ports) {
880 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
881 goto exit;
882 }
883 port = serial->port[msg->port];
884 p_priv = usb_get_serial_port_data(port);
885 if (!p_priv)
886 goto resubmit;
887
888 /* Update handshaking pin state information */
889 old_dcd_state = p_priv->dcd_state;
890 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
891 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
892 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
893 p_priv->ri_state = ((msg->ri) ? 1 : 0);
894
895 if (old_dcd_state != p_priv->dcd_state)
896 tty_port_tty_hangup(&port->port, true);
897 resubmit:
898 /* Resubmit urb so we continue receiving */
899 err = usb_submit_urb(urb, GFP_ATOMIC);
900 if (err != 0)
901 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
902 exit: ;
903 }
904
usa26_glocont_callback(struct urb * urb)905 static void usa26_glocont_callback(struct urb *urb)
906 {
907 }
908
909
usa28_indat_callback(struct urb * urb)910 static void usa28_indat_callback(struct urb *urb)
911 {
912 int err;
913 struct usb_serial_port *port;
914 unsigned char *data;
915 struct keyspan_port_private *p_priv;
916 int status = urb->status;
917
918 port = urb->context;
919 p_priv = usb_get_serial_port_data(port);
920 data = urb->transfer_buffer;
921
922 if (urb != p_priv->in_urbs[p_priv->in_flip])
923 return;
924
925 do {
926 if (status) {
927 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
928 __func__, status, usb_pipeendpoint(urb->pipe));
929 return;
930 }
931
932 port = urb->context;
933 p_priv = usb_get_serial_port_data(port);
934 data = urb->transfer_buffer;
935
936 if (urb->actual_length) {
937 tty_insert_flip_string(&port->port, data,
938 urb->actual_length);
939 tty_flip_buffer_push(&port->port);
940 }
941
942 /* Resubmit urb so we continue receiving */
943 err = usb_submit_urb(urb, GFP_ATOMIC);
944 if (err != 0)
945 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
946 __func__, err);
947 p_priv->in_flip ^= 1;
948
949 urb = p_priv->in_urbs[p_priv->in_flip];
950 } while (urb->status != -EINPROGRESS);
951 }
952
usa28_inack_callback(struct urb * urb)953 static void usa28_inack_callback(struct urb *urb)
954 {
955 }
956
usa28_outcont_callback(struct urb * urb)957 static void usa28_outcont_callback(struct urb *urb)
958 {
959 struct usb_serial_port *port;
960 struct keyspan_port_private *p_priv;
961
962 port = urb->context;
963 p_priv = usb_get_serial_port_data(port);
964
965 if (p_priv->resend_cont) {
966 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
967 keyspan_usa28_send_setup(port->serial, port,
968 p_priv->resend_cont - 1);
969 }
970 }
971
usa28_instat_callback(struct urb * urb)972 static void usa28_instat_callback(struct urb *urb)
973 {
974 int err;
975 unsigned char *data = urb->transfer_buffer;
976 struct keyspan_usa28_portStatusMessage *msg;
977 struct usb_serial *serial;
978 struct usb_serial_port *port;
979 struct keyspan_port_private *p_priv;
980 int old_dcd_state;
981 int status = urb->status;
982
983 serial = urb->context;
984
985 if (status) {
986 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
987 __func__, status);
988 return;
989 }
990
991 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
992 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
993 goto exit;
994 }
995
996 msg = (struct keyspan_usa28_portStatusMessage *)data;
997
998 /* Check port number from message and retrieve private data */
999 if (msg->port >= serial->num_ports) {
1000 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1001 goto exit;
1002 }
1003 port = serial->port[msg->port];
1004 p_priv = usb_get_serial_port_data(port);
1005 if (!p_priv)
1006 goto resubmit;
1007
1008 /* Update handshaking pin state information */
1009 old_dcd_state = p_priv->dcd_state;
1010 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1011 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1012 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1013 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1014
1015 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1016 tty_port_tty_hangup(&port->port, true);
1017 resubmit:
1018 /* Resubmit urb so we continue receiving */
1019 err = usb_submit_urb(urb, GFP_ATOMIC);
1020 if (err != 0)
1021 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1022 exit: ;
1023 }
1024
usa28_glocont_callback(struct urb * urb)1025 static void usa28_glocont_callback(struct urb *urb)
1026 {
1027 }
1028
1029
usa49_glocont_callback(struct urb * urb)1030 static void usa49_glocont_callback(struct urb *urb)
1031 {
1032 struct usb_serial *serial;
1033 struct usb_serial_port *port;
1034 struct keyspan_port_private *p_priv;
1035 int i;
1036
1037 serial = urb->context;
1038 for (i = 0; i < serial->num_ports; ++i) {
1039 port = serial->port[i];
1040 p_priv = usb_get_serial_port_data(port);
1041 if (!p_priv)
1042 continue;
1043
1044 if (p_priv->resend_cont) {
1045 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1046 keyspan_usa49_send_setup(serial, port,
1047 p_priv->resend_cont - 1);
1048 break;
1049 }
1050 }
1051 }
1052
1053 /* This is actually called glostat in the Keyspan
1054 doco */
usa49_instat_callback(struct urb * urb)1055 static void usa49_instat_callback(struct urb *urb)
1056 {
1057 int err;
1058 unsigned char *data = urb->transfer_buffer;
1059 struct keyspan_usa49_portStatusMessage *msg;
1060 struct usb_serial *serial;
1061 struct usb_serial_port *port;
1062 struct keyspan_port_private *p_priv;
1063 int old_dcd_state;
1064 int status = urb->status;
1065
1066 serial = urb->context;
1067
1068 if (status) {
1069 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1070 __func__, status);
1071 return;
1072 }
1073
1074 if (urb->actual_length !=
1075 sizeof(struct keyspan_usa49_portStatusMessage)) {
1076 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1077 goto exit;
1078 }
1079
1080 msg = (struct keyspan_usa49_portStatusMessage *)data;
1081
1082 /* Check port number from message and retrieve private data */
1083 if (msg->portNumber >= serial->num_ports) {
1084 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1085 __func__, msg->portNumber);
1086 goto exit;
1087 }
1088 port = serial->port[msg->portNumber];
1089 p_priv = usb_get_serial_port_data(port);
1090 if (!p_priv)
1091 goto resubmit;
1092
1093 /* Update handshaking pin state information */
1094 old_dcd_state = p_priv->dcd_state;
1095 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1096 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1097 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1098 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1099
1100 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1101 tty_port_tty_hangup(&port->port, true);
1102 resubmit:
1103 /* Resubmit urb so we continue receiving */
1104 err = usb_submit_urb(urb, GFP_ATOMIC);
1105 if (err != 0)
1106 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1107 exit: ;
1108 }
1109
usa49_inack_callback(struct urb * urb)1110 static void usa49_inack_callback(struct urb *urb)
1111 {
1112 }
1113
usa49_indat_callback(struct urb * urb)1114 static void usa49_indat_callback(struct urb *urb)
1115 {
1116 int i, err;
1117 int endpoint;
1118 struct usb_serial_port *port;
1119 unsigned char *data = urb->transfer_buffer;
1120 int status = urb->status;
1121
1122 endpoint = usb_pipeendpoint(urb->pipe);
1123
1124 if (status) {
1125 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1126 __func__, status, endpoint);
1127 return;
1128 }
1129
1130 port = urb->context;
1131 if (urb->actual_length) {
1132 /* 0x80 bit is error flag */
1133 if ((data[0] & 0x80) == 0) {
1134 /* no error on any byte */
1135 tty_insert_flip_string(&port->port, data + 1,
1136 urb->actual_length - 1);
1137 } else {
1138 /* some bytes had errors, every byte has status */
1139 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1140 int stat = data[i];
1141 int flag = TTY_NORMAL;
1142
1143 if (stat & RXERROR_OVERRUN) {
1144 tty_insert_flip_char(&port->port, 0,
1145 TTY_OVERRUN);
1146 }
1147 /* XXX should handle break (0x10) */
1148 if (stat & RXERROR_PARITY)
1149 flag = TTY_PARITY;
1150 else if (stat & RXERROR_FRAMING)
1151 flag = TTY_FRAME;
1152
1153 tty_insert_flip_char(&port->port, data[i+1],
1154 flag);
1155 }
1156 }
1157 tty_flip_buffer_push(&port->port);
1158 }
1159
1160 /* Resubmit urb so we continue receiving */
1161 err = usb_submit_urb(urb, GFP_ATOMIC);
1162 if (err != 0)
1163 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1164 }
1165
usa49wg_indat_callback(struct urb * urb)1166 static void usa49wg_indat_callback(struct urb *urb)
1167 {
1168 int i, len, x, err;
1169 struct usb_serial *serial;
1170 struct usb_serial_port *port;
1171 unsigned char *data = urb->transfer_buffer;
1172 int status = urb->status;
1173
1174 serial = urb->context;
1175
1176 if (status) {
1177 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1178 __func__, status);
1179 return;
1180 }
1181
1182 /* inbound data is in the form P#, len, status, data */
1183 i = 0;
1184 len = 0;
1185
1186 while (i < urb->actual_length) {
1187
1188 /* Check port number from message */
1189 if (data[i] >= serial->num_ports) {
1190 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1191 __func__, data[i]);
1192 return;
1193 }
1194 port = serial->port[data[i++]];
1195 len = data[i++];
1196
1197 /* 0x80 bit is error flag */
1198 if ((data[i] & 0x80) == 0) {
1199 /* no error on any byte */
1200 i++;
1201 for (x = 1; x < len && i < urb->actual_length; ++x)
1202 tty_insert_flip_char(&port->port,
1203 data[i++], 0);
1204 } else {
1205 /*
1206 * some bytes had errors, every byte has status
1207 */
1208 for (x = 0; x + 1 < len &&
1209 i + 1 < urb->actual_length; x += 2) {
1210 int stat = data[i];
1211 int flag = TTY_NORMAL;
1212
1213 if (stat & RXERROR_OVERRUN) {
1214 tty_insert_flip_char(&port->port, 0,
1215 TTY_OVERRUN);
1216 }
1217 /* XXX should handle break (0x10) */
1218 if (stat & RXERROR_PARITY)
1219 flag = TTY_PARITY;
1220 else if (stat & RXERROR_FRAMING)
1221 flag = TTY_FRAME;
1222
1223 tty_insert_flip_char(&port->port, data[i+1],
1224 flag);
1225 i += 2;
1226 }
1227 }
1228 tty_flip_buffer_push(&port->port);
1229 }
1230
1231 /* Resubmit urb so we continue receiving */
1232 err = usb_submit_urb(urb, GFP_ATOMIC);
1233 if (err != 0)
1234 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1235 }
1236
1237 /* not used, usa-49 doesn't have per-port control endpoints */
usa49_outcont_callback(struct urb * urb)1238 static void usa49_outcont_callback(struct urb *urb)
1239 {
1240 }
1241
usa90_indat_callback(struct urb * urb)1242 static void usa90_indat_callback(struct urb *urb)
1243 {
1244 int i, err;
1245 int endpoint;
1246 struct usb_serial_port *port;
1247 struct keyspan_port_private *p_priv;
1248 unsigned char *data = urb->transfer_buffer;
1249 int status = urb->status;
1250
1251 endpoint = usb_pipeendpoint(urb->pipe);
1252
1253 if (status) {
1254 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1255 __func__, status, endpoint);
1256 return;
1257 }
1258
1259 port = urb->context;
1260 p_priv = usb_get_serial_port_data(port);
1261
1262 if (urb->actual_length) {
1263 /* if current mode is DMA, looks like usa28 format
1264 otherwise looks like usa26 data format */
1265
1266 if (p_priv->baud > 57600)
1267 tty_insert_flip_string(&port->port, data,
1268 urb->actual_length);
1269 else {
1270 /* 0x80 bit is error flag */
1271 if ((data[0] & 0x80) == 0) {
1272 /* no errors on individual bytes, only
1273 possible overrun err*/
1274 if (data[0] & RXERROR_OVERRUN) {
1275 tty_insert_flip_char(&port->port, 0,
1276 TTY_OVERRUN);
1277 }
1278 for (i = 1; i < urb->actual_length ; ++i)
1279 tty_insert_flip_char(&port->port,
1280 data[i], TTY_NORMAL);
1281 } else {
1282 /* some bytes had errors, every byte has status */
1283 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1284 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1285 int stat = data[i];
1286 int flag = TTY_NORMAL;
1287
1288 if (stat & RXERROR_OVERRUN) {
1289 tty_insert_flip_char(
1290 &port->port, 0,
1291 TTY_OVERRUN);
1292 }
1293 /* XXX should handle break (0x10) */
1294 if (stat & RXERROR_PARITY)
1295 flag = TTY_PARITY;
1296 else if (stat & RXERROR_FRAMING)
1297 flag = TTY_FRAME;
1298
1299 tty_insert_flip_char(&port->port,
1300 data[i+1], flag);
1301 }
1302 }
1303 }
1304 tty_flip_buffer_push(&port->port);
1305 }
1306
1307 /* Resubmit urb so we continue receiving */
1308 err = usb_submit_urb(urb, GFP_ATOMIC);
1309 if (err != 0)
1310 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1311 }
1312
1313
usa90_instat_callback(struct urb * urb)1314 static void usa90_instat_callback(struct urb *urb)
1315 {
1316 unsigned char *data = urb->transfer_buffer;
1317 struct keyspan_usa90_portStatusMessage *msg;
1318 struct usb_serial *serial;
1319 struct usb_serial_port *port;
1320 struct keyspan_port_private *p_priv;
1321 int old_dcd_state, err;
1322 int status = urb->status;
1323
1324 serial = urb->context;
1325
1326 if (status) {
1327 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1328 __func__, status);
1329 return;
1330 }
1331 if (urb->actual_length < 14) {
1332 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1333 goto exit;
1334 }
1335
1336 msg = (struct keyspan_usa90_portStatusMessage *)data;
1337
1338 /* Now do something useful with the data */
1339
1340 port = serial->port[0];
1341 p_priv = usb_get_serial_port_data(port);
1342 if (!p_priv)
1343 goto resubmit;
1344
1345 /* Update handshaking pin state information */
1346 old_dcd_state = p_priv->dcd_state;
1347 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1348 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1349 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1350 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1351
1352 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1353 tty_port_tty_hangup(&port->port, true);
1354 resubmit:
1355 /* Resubmit urb so we continue receiving */
1356 err = usb_submit_urb(urb, GFP_ATOMIC);
1357 if (err != 0)
1358 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1359 exit:
1360 ;
1361 }
1362
usa90_outcont_callback(struct urb * urb)1363 static void usa90_outcont_callback(struct urb *urb)
1364 {
1365 struct usb_serial_port *port;
1366 struct keyspan_port_private *p_priv;
1367
1368 port = urb->context;
1369 p_priv = usb_get_serial_port_data(port);
1370
1371 if (p_priv->resend_cont) {
1372 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
1373 keyspan_usa90_send_setup(port->serial, port,
1374 p_priv->resend_cont - 1);
1375 }
1376 }
1377
1378 /* Status messages from the 28xg */
usa67_instat_callback(struct urb * urb)1379 static void usa67_instat_callback(struct urb *urb)
1380 {
1381 int err;
1382 unsigned char *data = urb->transfer_buffer;
1383 struct keyspan_usa67_portStatusMessage *msg;
1384 struct usb_serial *serial;
1385 struct usb_serial_port *port;
1386 struct keyspan_port_private *p_priv;
1387 int old_dcd_state;
1388 int status = urb->status;
1389
1390 serial = urb->context;
1391
1392 if (status) {
1393 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1394 __func__, status);
1395 return;
1396 }
1397
1398 if (urb->actual_length !=
1399 sizeof(struct keyspan_usa67_portStatusMessage)) {
1400 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1401 return;
1402 }
1403
1404
1405 /* Now do something useful with the data */
1406 msg = (struct keyspan_usa67_portStatusMessage *)data;
1407
1408 /* Check port number from message and retrieve private data */
1409 if (msg->port >= serial->num_ports) {
1410 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1411 return;
1412 }
1413
1414 port = serial->port[msg->port];
1415 p_priv = usb_get_serial_port_data(port);
1416 if (!p_priv)
1417 goto resubmit;
1418
1419 /* Update handshaking pin state information */
1420 old_dcd_state = p_priv->dcd_state;
1421 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1422 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1423
1424 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1425 tty_port_tty_hangup(&port->port, true);
1426 resubmit:
1427 /* Resubmit urb so we continue receiving */
1428 err = usb_submit_urb(urb, GFP_ATOMIC);
1429 if (err != 0)
1430 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1431 }
1432
usa67_glocont_callback(struct urb * urb)1433 static void usa67_glocont_callback(struct urb *urb)
1434 {
1435 struct usb_serial *serial;
1436 struct usb_serial_port *port;
1437 struct keyspan_port_private *p_priv;
1438 int i;
1439
1440 serial = urb->context;
1441 for (i = 0; i < serial->num_ports; ++i) {
1442 port = serial->port[i];
1443 p_priv = usb_get_serial_port_data(port);
1444 if (!p_priv)
1445 continue;
1446
1447 if (p_priv->resend_cont) {
1448 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1449 keyspan_usa67_send_setup(serial, port,
1450 p_priv->resend_cont - 1);
1451 break;
1452 }
1453 }
1454 }
1455
keyspan_write_room(struct tty_struct * tty)1456 static int keyspan_write_room(struct tty_struct *tty)
1457 {
1458 struct usb_serial_port *port = tty->driver_data;
1459 struct keyspan_port_private *p_priv;
1460 const struct keyspan_device_details *d_details;
1461 int flip;
1462 int data_len;
1463 struct urb *this_urb;
1464
1465 p_priv = usb_get_serial_port_data(port);
1466 d_details = p_priv->device_details;
1467
1468 /* FIXME: locking */
1469 if (d_details->msg_format == msg_usa90)
1470 data_len = 64;
1471 else
1472 data_len = 63;
1473
1474 flip = p_priv->out_flip;
1475
1476 /* Check both endpoints to see if any are available. */
1477 this_urb = p_priv->out_urbs[flip];
1478 if (this_urb != NULL) {
1479 if (this_urb->status != -EINPROGRESS)
1480 return data_len;
1481 flip = (flip + 1) & d_details->outdat_endp_flip;
1482 this_urb = p_priv->out_urbs[flip];
1483 if (this_urb != NULL) {
1484 if (this_urb->status != -EINPROGRESS)
1485 return data_len;
1486 }
1487 }
1488 return 0;
1489 }
1490
1491
keyspan_open(struct tty_struct * tty,struct usb_serial_port * port)1492 static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1493 {
1494 struct keyspan_port_private *p_priv;
1495 const struct keyspan_device_details *d_details;
1496 int i, err;
1497 int baud_rate, device_port;
1498 struct urb *urb;
1499 unsigned int cflag = 0;
1500
1501 p_priv = usb_get_serial_port_data(port);
1502 d_details = p_priv->device_details;
1503
1504 /* Set some sane defaults */
1505 p_priv->rts_state = 1;
1506 p_priv->dtr_state = 1;
1507 p_priv->baud = 9600;
1508
1509 /* force baud and lcr to be set on open */
1510 p_priv->old_baud = 0;
1511 p_priv->old_cflag = 0;
1512
1513 p_priv->out_flip = 0;
1514 p_priv->in_flip = 0;
1515
1516 /* Reset low level data toggle and start reading from endpoints */
1517 for (i = 0; i < 2; i++) {
1518 urb = p_priv->in_urbs[i];
1519 if (urb == NULL)
1520 continue;
1521
1522 /* make sure endpoint data toggle is synchronized
1523 with the device */
1524 usb_clear_halt(urb->dev, urb->pipe);
1525 err = usb_submit_urb(urb, GFP_KERNEL);
1526 if (err != 0)
1527 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
1528 }
1529
1530 /* Reset low level data toggle on out endpoints */
1531 for (i = 0; i < 2; i++) {
1532 urb = p_priv->out_urbs[i];
1533 if (urb == NULL)
1534 continue;
1535 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1536 usb_pipeout(urb->pipe), 0); */
1537 }
1538
1539 /* get the terminal config for the setup message now so we don't
1540 * need to send 2 of them */
1541
1542 device_port = port->port_number;
1543 if (tty) {
1544 cflag = tty->termios.c_cflag;
1545 /* Baud rate calculation takes baud rate as an integer
1546 so other rates can be generated if desired. */
1547 baud_rate = tty_get_baud_rate(tty);
1548 /* If no match or invalid, leave as default */
1549 if (baud_rate >= 0
1550 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
1551 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1552 p_priv->baud = baud_rate;
1553 }
1554 }
1555 /* set CTS/RTS handshake etc. */
1556 p_priv->cflag = cflag;
1557 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
1558
1559 keyspan_send_setup(port, 1);
1560 /* mdelay(100); */
1561 /* keyspan_set_termios(port, NULL); */
1562
1563 return 0;
1564 }
1565
keyspan_dtr_rts(struct usb_serial_port * port,int on)1566 static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1567 {
1568 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1569
1570 p_priv->rts_state = on;
1571 p_priv->dtr_state = on;
1572 keyspan_send_setup(port, 0);
1573 }
1574
keyspan_close(struct usb_serial_port * port)1575 static void keyspan_close(struct usb_serial_port *port)
1576 {
1577 int i;
1578 struct keyspan_port_private *p_priv;
1579
1580 p_priv = usb_get_serial_port_data(port);
1581
1582 p_priv->rts_state = 0;
1583 p_priv->dtr_state = 0;
1584
1585 keyspan_send_setup(port, 2);
1586 /* pilot-xfer seems to work best with this delay */
1587 mdelay(100);
1588
1589 p_priv->out_flip = 0;
1590 p_priv->in_flip = 0;
1591
1592 usb_kill_urb(p_priv->inack_urb);
1593 for (i = 0; i < 2; i++) {
1594 usb_kill_urb(p_priv->in_urbs[i]);
1595 usb_kill_urb(p_priv->out_urbs[i]);
1596 }
1597 }
1598
1599 /* download the firmware to a pre-renumeration device */
keyspan_fake_startup(struct usb_serial * serial)1600 static int keyspan_fake_startup(struct usb_serial *serial)
1601 {
1602 char *fw_name;
1603
1604 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
1605 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1606 le16_to_cpu(serial->dev->descriptor.idProduct));
1607
1608 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1609 != 0x8000) {
1610 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n");
1611 return 1;
1612 }
1613
1614 /* Select firmware image on the basis of idProduct */
1615 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1616 case keyspan_usa28_pre_product_id:
1617 fw_name = "keyspan/usa28.fw";
1618 break;
1619
1620 case keyspan_usa28x_pre_product_id:
1621 fw_name = "keyspan/usa28x.fw";
1622 break;
1623
1624 case keyspan_usa28xa_pre_product_id:
1625 fw_name = "keyspan/usa28xa.fw";
1626 break;
1627
1628 case keyspan_usa28xb_pre_product_id:
1629 fw_name = "keyspan/usa28xb.fw";
1630 break;
1631
1632 case keyspan_usa19_pre_product_id:
1633 fw_name = "keyspan/usa19.fw";
1634 break;
1635
1636 case keyspan_usa19qi_pre_product_id:
1637 fw_name = "keyspan/usa19qi.fw";
1638 break;
1639
1640 case keyspan_mpr_pre_product_id:
1641 fw_name = "keyspan/mpr.fw";
1642 break;
1643
1644 case keyspan_usa19qw_pre_product_id:
1645 fw_name = "keyspan/usa19qw.fw";
1646 break;
1647
1648 case keyspan_usa18x_pre_product_id:
1649 fw_name = "keyspan/usa18x.fw";
1650 break;
1651
1652 case keyspan_usa19w_pre_product_id:
1653 fw_name = "keyspan/usa19w.fw";
1654 break;
1655
1656 case keyspan_usa49w_pre_product_id:
1657 fw_name = "keyspan/usa49w.fw";
1658 break;
1659
1660 case keyspan_usa49wlc_pre_product_id:
1661 fw_name = "keyspan/usa49wlc.fw";
1662 break;
1663
1664 default:
1665 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1666 le16_to_cpu(serial->dev->descriptor.idProduct));
1667 return 1;
1668 }
1669
1670 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
1671
1672 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
1673 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
1674 fw_name);
1675 return -ENOENT;
1676 }
1677
1678 /* after downloading firmware Renumeration will occur in a
1679 moment and the new device will bind to the real driver */
1680
1681 /* we don't want this device to have a driver assigned to it. */
1682 return 1;
1683 }
1684
1685 /* Helper functions used by keyspan_setup_urbs */
find_ep(struct usb_serial const * serial,int endpoint)1686 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1687 int endpoint)
1688 {
1689 struct usb_host_interface *iface_desc;
1690 struct usb_endpoint_descriptor *ep;
1691 int i;
1692
1693 iface_desc = serial->interface->cur_altsetting;
1694 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1695 ep = &iface_desc->endpoint[i].desc;
1696 if (ep->bEndpointAddress == endpoint)
1697 return ep;
1698 }
1699 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n",
1700 endpoint);
1701 return NULL;
1702 }
1703
keyspan_setup_urb(struct usb_serial * serial,int endpoint,int dir,void * ctx,char * buf,int len,void (* callback)(struct urb *))1704 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1705 int dir, void *ctx, char *buf, int len,
1706 void (*callback)(struct urb *))
1707 {
1708 struct urb *urb;
1709 struct usb_endpoint_descriptor const *ep_desc;
1710 char const *ep_type_name;
1711
1712 if (endpoint == -1)
1713 return NULL; /* endpoint not needed */
1714
1715 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n",
1716 __func__, endpoint);
1717 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1718 if (!urb)
1719 return NULL;
1720
1721 if (endpoint == 0) {
1722 /* control EP filled in when used */
1723 return urb;
1724 }
1725
1726 ep_desc = find_ep(serial, endpoint);
1727 if (!ep_desc) {
1728 usb_free_urb(urb);
1729 return NULL;
1730 }
1731 if (usb_endpoint_xfer_int(ep_desc)) {
1732 ep_type_name = "INT";
1733 usb_fill_int_urb(urb, serial->dev,
1734 usb_sndintpipe(serial->dev, endpoint) | dir,
1735 buf, len, callback, ctx,
1736 ep_desc->bInterval);
1737 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1738 ep_type_name = "BULK";
1739 usb_fill_bulk_urb(urb, serial->dev,
1740 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1741 buf, len, callback, ctx);
1742 } else {
1743 dev_warn(&serial->interface->dev,
1744 "unsupported endpoint type %x\n",
1745 usb_endpoint_type(ep_desc));
1746 usb_free_urb(urb);
1747 return NULL;
1748 }
1749
1750 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
1751 __func__, urb, ep_type_name, endpoint);
1752 return urb;
1753 }
1754
1755 static struct callbacks {
1756 void (*instat_callback)(struct urb *);
1757 void (*glocont_callback)(struct urb *);
1758 void (*indat_callback)(struct urb *);
1759 void (*outdat_callback)(struct urb *);
1760 void (*inack_callback)(struct urb *);
1761 void (*outcont_callback)(struct urb *);
1762 } keyspan_callbacks[] = {
1763 {
1764 /* msg_usa26 callbacks */
1765 .instat_callback = usa26_instat_callback,
1766 .glocont_callback = usa26_glocont_callback,
1767 .indat_callback = usa26_indat_callback,
1768 .outdat_callback = usa2x_outdat_callback,
1769 .inack_callback = usa26_inack_callback,
1770 .outcont_callback = usa26_outcont_callback,
1771 }, {
1772 /* msg_usa28 callbacks */
1773 .instat_callback = usa28_instat_callback,
1774 .glocont_callback = usa28_glocont_callback,
1775 .indat_callback = usa28_indat_callback,
1776 .outdat_callback = usa2x_outdat_callback,
1777 .inack_callback = usa28_inack_callback,
1778 .outcont_callback = usa28_outcont_callback,
1779 }, {
1780 /* msg_usa49 callbacks */
1781 .instat_callback = usa49_instat_callback,
1782 .glocont_callback = usa49_glocont_callback,
1783 .indat_callback = usa49_indat_callback,
1784 .outdat_callback = usa2x_outdat_callback,
1785 .inack_callback = usa49_inack_callback,
1786 .outcont_callback = usa49_outcont_callback,
1787 }, {
1788 /* msg_usa90 callbacks */
1789 .instat_callback = usa90_instat_callback,
1790 .glocont_callback = usa28_glocont_callback,
1791 .indat_callback = usa90_indat_callback,
1792 .outdat_callback = usa2x_outdat_callback,
1793 .inack_callback = usa28_inack_callback,
1794 .outcont_callback = usa90_outcont_callback,
1795 }, {
1796 /* msg_usa67 callbacks */
1797 .instat_callback = usa67_instat_callback,
1798 .glocont_callback = usa67_glocont_callback,
1799 .indat_callback = usa26_indat_callback,
1800 .outdat_callback = usa2x_outdat_callback,
1801 .inack_callback = usa26_inack_callback,
1802 .outcont_callback = usa26_outcont_callback,
1803 }
1804 };
1805
1806 /* Generic setup urbs function that uses
1807 data in device_details */
keyspan_setup_urbs(struct usb_serial * serial)1808 static void keyspan_setup_urbs(struct usb_serial *serial)
1809 {
1810 struct keyspan_serial_private *s_priv;
1811 const struct keyspan_device_details *d_details;
1812 struct callbacks *cback;
1813
1814 s_priv = usb_get_serial_data(serial);
1815 d_details = s_priv->device_details;
1816
1817 /* Setup values for the various callback routines */
1818 cback = &keyspan_callbacks[d_details->msg_format];
1819
1820 /* Allocate and set up urbs for each one that is in use,
1821 starting with instat endpoints */
1822 s_priv->instat_urb = keyspan_setup_urb
1823 (serial, d_details->instat_endpoint, USB_DIR_IN,
1824 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1825 cback->instat_callback);
1826
1827 s_priv->indat_urb = keyspan_setup_urb
1828 (serial, d_details->indat_endpoint, USB_DIR_IN,
1829 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1830 usa49wg_indat_callback);
1831
1832 s_priv->glocont_urb = keyspan_setup_urb
1833 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1834 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1835 cback->glocont_callback);
1836 }
1837
1838 /* usa19 function doesn't require prescaler */
keyspan_usa19_calc_baud(struct usb_serial_port * port,u32 baud_rate,u32 baudclk,u8 * rate_hi,u8 * rate_low,u8 * prescaler,int portnum)1839 static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
1840 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1841 u8 *rate_low, u8 *prescaler, int portnum)
1842 {
1843 u32 b16, /* baud rate times 16 (actual rate used internally) */
1844 div, /* divisor */
1845 cnt; /* inverse of divisor (programmed into 8051) */
1846
1847 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1848
1849 /* prevent divide by zero... */
1850 b16 = baud_rate * 16L;
1851 if (b16 == 0)
1852 return KEYSPAN_INVALID_BAUD_RATE;
1853 /* Any "standard" rate over 57k6 is marginal on the USA-19
1854 as we run out of divisor resolution. */
1855 if (baud_rate > 57600)
1856 return KEYSPAN_INVALID_BAUD_RATE;
1857
1858 /* calculate the divisor and the counter (its inverse) */
1859 div = baudclk / b16;
1860 if (div == 0)
1861 return KEYSPAN_INVALID_BAUD_RATE;
1862 else
1863 cnt = 0 - div;
1864
1865 if (div > 0xffff)
1866 return KEYSPAN_INVALID_BAUD_RATE;
1867
1868 /* return the counter values if non-null */
1869 if (rate_low)
1870 *rate_low = (u8) (cnt & 0xff);
1871 if (rate_hi)
1872 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1873 if (rate_low && rate_hi)
1874 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1875 __func__, baud_rate, *rate_hi, *rate_low);
1876 return KEYSPAN_BAUD_RATE_OK;
1877 }
1878
1879 /* usa19hs function doesn't require prescaler */
keyspan_usa19hs_calc_baud(struct usb_serial_port * port,u32 baud_rate,u32 baudclk,u8 * rate_hi,u8 * rate_low,u8 * prescaler,int portnum)1880 static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
1881 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1882 u8 *rate_low, u8 *prescaler, int portnum)
1883 {
1884 u32 b16, /* baud rate times 16 (actual rate used internally) */
1885 div; /* divisor */
1886
1887 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1888
1889 /* prevent divide by zero... */
1890 b16 = baud_rate * 16L;
1891 if (b16 == 0)
1892 return KEYSPAN_INVALID_BAUD_RATE;
1893
1894 /* calculate the divisor */
1895 div = baudclk / b16;
1896 if (div == 0)
1897 return KEYSPAN_INVALID_BAUD_RATE;
1898
1899 if (div > 0xffff)
1900 return KEYSPAN_INVALID_BAUD_RATE;
1901
1902 /* return the counter values if non-null */
1903 if (rate_low)
1904 *rate_low = (u8) (div & 0xff);
1905
1906 if (rate_hi)
1907 *rate_hi = (u8) ((div >> 8) & 0xff);
1908
1909 if (rate_low && rate_hi)
1910 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1911 __func__, baud_rate, *rate_hi, *rate_low);
1912
1913 return KEYSPAN_BAUD_RATE_OK;
1914 }
1915
keyspan_usa19w_calc_baud(struct usb_serial_port * port,u32 baud_rate,u32 baudclk,u8 * rate_hi,u8 * rate_low,u8 * prescaler,int portnum)1916 static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
1917 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1918 u8 *rate_low, u8 *prescaler, int portnum)
1919 {
1920 u32 b16, /* baud rate times 16 (actual rate used internally) */
1921 clk, /* clock with 13/8 prescaler */
1922 div, /* divisor using 13/8 prescaler */
1923 res, /* resulting baud rate using 13/8 prescaler */
1924 diff, /* error using 13/8 prescaler */
1925 smallest_diff;
1926 u8 best_prescaler;
1927 int i;
1928
1929 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1930
1931 /* prevent divide by zero */
1932 b16 = baud_rate * 16L;
1933 if (b16 == 0)
1934 return KEYSPAN_INVALID_BAUD_RATE;
1935
1936 /* Calculate prescaler by trying them all and looking
1937 for best fit */
1938
1939 /* start with largest possible difference */
1940 smallest_diff = 0xffffffff;
1941
1942 /* 0 is an invalid prescaler, used as a flag */
1943 best_prescaler = 0;
1944
1945 for (i = 8; i <= 0xff; ++i) {
1946 clk = (baudclk * 8) / (u32) i;
1947
1948 div = clk / b16;
1949 if (div == 0)
1950 continue;
1951
1952 res = clk / div;
1953 diff = (res > b16) ? (res-b16) : (b16-res);
1954
1955 if (diff < smallest_diff) {
1956 best_prescaler = i;
1957 smallest_diff = diff;
1958 }
1959 }
1960
1961 if (best_prescaler == 0)
1962 return KEYSPAN_INVALID_BAUD_RATE;
1963
1964 clk = (baudclk * 8) / (u32) best_prescaler;
1965 div = clk / b16;
1966
1967 /* return the divisor and prescaler if non-null */
1968 if (rate_low)
1969 *rate_low = (u8) (div & 0xff);
1970 if (rate_hi)
1971 *rate_hi = (u8) ((div >> 8) & 0xff);
1972 if (prescaler) {
1973 *prescaler = best_prescaler;
1974 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
1975 }
1976 return KEYSPAN_BAUD_RATE_OK;
1977 }
1978
1979 /* USA-28 supports different maximum baud rates on each port */
keyspan_usa28_calc_baud(struct usb_serial_port * port,u32 baud_rate,u32 baudclk,u8 * rate_hi,u8 * rate_low,u8 * prescaler,int portnum)1980 static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
1981 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1982 u8 *rate_low, u8 *prescaler, int portnum)
1983 {
1984 u32 b16, /* baud rate times 16 (actual rate used internally) */
1985 div, /* divisor */
1986 cnt; /* inverse of divisor (programmed into 8051) */
1987
1988 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1989
1990 /* prevent divide by zero */
1991 b16 = baud_rate * 16L;
1992 if (b16 == 0)
1993 return KEYSPAN_INVALID_BAUD_RATE;
1994
1995 /* calculate the divisor and the counter (its inverse) */
1996 div = KEYSPAN_USA28_BAUDCLK / b16;
1997 if (div == 0)
1998 return KEYSPAN_INVALID_BAUD_RATE;
1999 else
2000 cnt = 0 - div;
2001
2002 /* check for out of range, based on portnum,
2003 and return result */
2004 if (portnum == 0) {
2005 if (div > 0xffff)
2006 return KEYSPAN_INVALID_BAUD_RATE;
2007 } else {
2008 if (portnum == 1) {
2009 if (div > 0xff)
2010 return KEYSPAN_INVALID_BAUD_RATE;
2011 } else
2012 return KEYSPAN_INVALID_BAUD_RATE;
2013 }
2014
2015 /* return the counter values if not NULL
2016 (port 1 will ignore retHi) */
2017 if (rate_low)
2018 *rate_low = (u8) (cnt & 0xff);
2019 if (rate_hi)
2020 *rate_hi = (u8) ((cnt >> 8) & 0xff);
2021 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
2022 return KEYSPAN_BAUD_RATE_OK;
2023 }
2024
keyspan_usa26_send_setup(struct usb_serial * serial,struct usb_serial_port * port,int reset_port)2025 static int keyspan_usa26_send_setup(struct usb_serial *serial,
2026 struct usb_serial_port *port,
2027 int reset_port)
2028 {
2029 struct keyspan_usa26_portControlMessage msg;
2030 struct keyspan_serial_private *s_priv;
2031 struct keyspan_port_private *p_priv;
2032 const struct keyspan_device_details *d_details;
2033 struct urb *this_urb;
2034 int device_port, err;
2035
2036 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
2037
2038 s_priv = usb_get_serial_data(serial);
2039 p_priv = usb_get_serial_port_data(port);
2040 d_details = s_priv->device_details;
2041 device_port = port->port_number;
2042
2043 this_urb = p_priv->outcont_urb;
2044
2045 /* Make sure we have an urb then send the message */
2046 if (this_urb == NULL) {
2047 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2048 return -1;
2049 }
2050
2051 dev_dbg(&port->dev, "%s - endpoint %x\n",
2052 __func__, usb_pipeendpoint(this_urb->pipe));
2053
2054 /* Save reset port val for resend.
2055 Don't overwrite resend for open/close condition. */
2056 if ((reset_port + 1) > p_priv->resend_cont)
2057 p_priv->resend_cont = reset_port + 1;
2058 if (this_urb->status == -EINPROGRESS) {
2059 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2060 mdelay(5);
2061 return -1;
2062 }
2063
2064 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
2065
2066 /* Only set baud rate if it's changed */
2067 if (p_priv->old_baud != p_priv->baud) {
2068 p_priv->old_baud = p_priv->baud;
2069 msg.setClocking = 0xff;
2070 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2071 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2072 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2073 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2074 __func__, p_priv->baud);
2075 msg.baudLo = 0;
2076 msg.baudHi = 125; /* Values for 9600 baud */
2077 msg.prescaler = 10;
2078 }
2079 msg.setPrescaler = 0xff;
2080 }
2081
2082 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2083 switch (p_priv->cflag & CSIZE) {
2084 case CS5:
2085 msg.lcr |= USA_DATABITS_5;
2086 break;
2087 case CS6:
2088 msg.lcr |= USA_DATABITS_6;
2089 break;
2090 case CS7:
2091 msg.lcr |= USA_DATABITS_7;
2092 break;
2093 case CS8:
2094 msg.lcr |= USA_DATABITS_8;
2095 break;
2096 }
2097 if (p_priv->cflag & PARENB) {
2098 /* note USA_PARITY_NONE == 0 */
2099 msg.lcr |= (p_priv->cflag & PARODD) ?
2100 USA_PARITY_ODD : USA_PARITY_EVEN;
2101 }
2102 msg.setLcr = 0xff;
2103
2104 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2105 msg.xonFlowControl = 0;
2106 msg.setFlowControl = 0xff;
2107 msg.forwardingLength = 16;
2108 msg.xonChar = 17;
2109 msg.xoffChar = 19;
2110
2111 /* Opening port */
2112 if (reset_port == 1) {
2113 msg._txOn = 1;
2114 msg._txOff = 0;
2115 msg.txFlush = 0;
2116 msg.txBreak = 0;
2117 msg.rxOn = 1;
2118 msg.rxOff = 0;
2119 msg.rxFlush = 1;
2120 msg.rxForward = 0;
2121 msg.returnStatus = 0;
2122 msg.resetDataToggle = 0xff;
2123 }
2124
2125 /* Closing port */
2126 else if (reset_port == 2) {
2127 msg._txOn = 0;
2128 msg._txOff = 1;
2129 msg.txFlush = 0;
2130 msg.txBreak = 0;
2131 msg.rxOn = 0;
2132 msg.rxOff = 1;
2133 msg.rxFlush = 1;
2134 msg.rxForward = 0;
2135 msg.returnStatus = 0;
2136 msg.resetDataToggle = 0;
2137 }
2138
2139 /* Sending intermediate configs */
2140 else {
2141 msg._txOn = (!p_priv->break_on);
2142 msg._txOff = 0;
2143 msg.txFlush = 0;
2144 msg.txBreak = (p_priv->break_on);
2145 msg.rxOn = 0;
2146 msg.rxOff = 0;
2147 msg.rxFlush = 0;
2148 msg.rxForward = 0;
2149 msg.returnStatus = 0;
2150 msg.resetDataToggle = 0x0;
2151 }
2152
2153 /* Do handshaking outputs */
2154 msg.setTxTriState_setRts = 0xff;
2155 msg.txTriState_rts = p_priv->rts_state;
2156
2157 msg.setHskoa_setDtr = 0xff;
2158 msg.hskoa_dtr = p_priv->dtr_state;
2159
2160 p_priv->resend_cont = 0;
2161 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2162
2163 /* send the data out the device on control endpoint */
2164 this_urb->transfer_buffer_length = sizeof(msg);
2165
2166 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2167 if (err != 0)
2168 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2169 return 0;
2170 }
2171
keyspan_usa28_send_setup(struct usb_serial * serial,struct usb_serial_port * port,int reset_port)2172 static int keyspan_usa28_send_setup(struct usb_serial *serial,
2173 struct usb_serial_port *port,
2174 int reset_port)
2175 {
2176 struct keyspan_usa28_portControlMessage msg;
2177 struct keyspan_serial_private *s_priv;
2178 struct keyspan_port_private *p_priv;
2179 const struct keyspan_device_details *d_details;
2180 struct urb *this_urb;
2181 int device_port, err;
2182
2183 s_priv = usb_get_serial_data(serial);
2184 p_priv = usb_get_serial_port_data(port);
2185 d_details = s_priv->device_details;
2186 device_port = port->port_number;
2187
2188 /* only do something if we have a bulk out endpoint */
2189 this_urb = p_priv->outcont_urb;
2190 if (this_urb == NULL) {
2191 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2192 return -1;
2193 }
2194
2195 /* Save reset port val for resend.
2196 Don't overwrite resend for open/close condition. */
2197 if ((reset_port + 1) > p_priv->resend_cont)
2198 p_priv->resend_cont = reset_port + 1;
2199 if (this_urb->status == -EINPROGRESS) {
2200 dev_dbg(&port->dev, "%s already writing\n", __func__);
2201 mdelay(5);
2202 return -1;
2203 }
2204
2205 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2206
2207 msg.setBaudRate = 1;
2208 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2209 &msg.baudHi, &msg.baudLo, NULL,
2210 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2211 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
2212 __func__, p_priv->baud);
2213 msg.baudLo = 0xff;
2214 msg.baudHi = 0xb2; /* Values for 9600 baud */
2215 }
2216
2217 /* If parity is enabled, we must calculate it ourselves. */
2218 msg.parity = 0; /* XXX for now */
2219
2220 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2221 msg.xonFlowControl = 0;
2222
2223 /* Do handshaking outputs, DTR is inverted relative to RTS */
2224 msg.rts = p_priv->rts_state;
2225 msg.dtr = p_priv->dtr_state;
2226
2227 msg.forwardingLength = 16;
2228 msg.forwardMs = 10;
2229 msg.breakThreshold = 45;
2230 msg.xonChar = 17;
2231 msg.xoffChar = 19;
2232
2233 /*msg.returnStatus = 1;
2234 msg.resetDataToggle = 0xff;*/
2235 /* Opening port */
2236 if (reset_port == 1) {
2237 msg._txOn = 1;
2238 msg._txOff = 0;
2239 msg.txFlush = 0;
2240 msg.txForceXoff = 0;
2241 msg.txBreak = 0;
2242 msg.rxOn = 1;
2243 msg.rxOff = 0;
2244 msg.rxFlush = 1;
2245 msg.rxForward = 0;
2246 msg.returnStatus = 0;
2247 msg.resetDataToggle = 0xff;
2248 }
2249 /* Closing port */
2250 else if (reset_port == 2) {
2251 msg._txOn = 0;
2252 msg._txOff = 1;
2253 msg.txFlush = 0;
2254 msg.txForceXoff = 0;
2255 msg.txBreak = 0;
2256 msg.rxOn = 0;
2257 msg.rxOff = 1;
2258 msg.rxFlush = 1;
2259 msg.rxForward = 0;
2260 msg.returnStatus = 0;
2261 msg.resetDataToggle = 0;
2262 }
2263 /* Sending intermediate configs */
2264 else {
2265 msg._txOn = (!p_priv->break_on);
2266 msg._txOff = 0;
2267 msg.txFlush = 0;
2268 msg.txForceXoff = 0;
2269 msg.txBreak = (p_priv->break_on);
2270 msg.rxOn = 0;
2271 msg.rxOff = 0;
2272 msg.rxFlush = 0;
2273 msg.rxForward = 0;
2274 msg.returnStatus = 0;
2275 msg.resetDataToggle = 0x0;
2276 }
2277
2278 p_priv->resend_cont = 0;
2279 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2280
2281 /* send the data out the device on control endpoint */
2282 this_urb->transfer_buffer_length = sizeof(msg);
2283
2284 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2285 if (err != 0)
2286 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
2287
2288 return 0;
2289 }
2290
keyspan_usa49_send_setup(struct usb_serial * serial,struct usb_serial_port * port,int reset_port)2291 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2292 struct usb_serial_port *port,
2293 int reset_port)
2294 {
2295 struct keyspan_usa49_portControlMessage msg;
2296 struct usb_ctrlrequest *dr = NULL;
2297 struct keyspan_serial_private *s_priv;
2298 struct keyspan_port_private *p_priv;
2299 const struct keyspan_device_details *d_details;
2300 struct urb *this_urb;
2301 int err, device_port;
2302
2303 s_priv = usb_get_serial_data(serial);
2304 p_priv = usb_get_serial_port_data(port);
2305 d_details = s_priv->device_details;
2306
2307 this_urb = s_priv->glocont_urb;
2308
2309 /* Work out which port within the device is being setup */
2310 device_port = port->port_number;
2311
2312 /* Make sure we have an urb then send the message */
2313 if (this_urb == NULL) {
2314 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2315 return -1;
2316 }
2317
2318 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n",
2319 __func__, usb_pipeendpoint(this_urb->pipe), device_port);
2320
2321 /* Save reset port val for resend.
2322 Don't overwrite resend for open/close condition. */
2323 if ((reset_port + 1) > p_priv->resend_cont)
2324 p_priv->resend_cont = reset_port + 1;
2325
2326 if (this_urb->status == -EINPROGRESS) {
2327 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2328 mdelay(5);
2329 return -1;
2330 }
2331
2332 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2333
2334 msg.portNumber = device_port;
2335
2336 /* Only set baud rate if it's changed */
2337 if (p_priv->old_baud != p_priv->baud) {
2338 p_priv->old_baud = p_priv->baud;
2339 msg.setClocking = 0xff;
2340 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2341 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2342 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2343 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2344 __func__, p_priv->baud);
2345 msg.baudLo = 0;
2346 msg.baudHi = 125; /* Values for 9600 baud */
2347 msg.prescaler = 10;
2348 }
2349 /* msg.setPrescaler = 0xff; */
2350 }
2351
2352 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2353 switch (p_priv->cflag & CSIZE) {
2354 case CS5:
2355 msg.lcr |= USA_DATABITS_5;
2356 break;
2357 case CS6:
2358 msg.lcr |= USA_DATABITS_6;
2359 break;
2360 case CS7:
2361 msg.lcr |= USA_DATABITS_7;
2362 break;
2363 case CS8:
2364 msg.lcr |= USA_DATABITS_8;
2365 break;
2366 }
2367 if (p_priv->cflag & PARENB) {
2368 /* note USA_PARITY_NONE == 0 */
2369 msg.lcr |= (p_priv->cflag & PARODD) ?
2370 USA_PARITY_ODD : USA_PARITY_EVEN;
2371 }
2372 msg.setLcr = 0xff;
2373
2374 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2375 msg.xonFlowControl = 0;
2376 msg.setFlowControl = 0xff;
2377
2378 msg.forwardingLength = 16;
2379 msg.xonChar = 17;
2380 msg.xoffChar = 19;
2381
2382 /* Opening port */
2383 if (reset_port == 1) {
2384 msg._txOn = 1;
2385 msg._txOff = 0;
2386 msg.txFlush = 0;
2387 msg.txBreak = 0;
2388 msg.rxOn = 1;
2389 msg.rxOff = 0;
2390 msg.rxFlush = 1;
2391 msg.rxForward = 0;
2392 msg.returnStatus = 0;
2393 msg.resetDataToggle = 0xff;
2394 msg.enablePort = 1;
2395 msg.disablePort = 0;
2396 }
2397 /* Closing port */
2398 else if (reset_port == 2) {
2399 msg._txOn = 0;
2400 msg._txOff = 1;
2401 msg.txFlush = 0;
2402 msg.txBreak = 0;
2403 msg.rxOn = 0;
2404 msg.rxOff = 1;
2405 msg.rxFlush = 1;
2406 msg.rxForward = 0;
2407 msg.returnStatus = 0;
2408 msg.resetDataToggle = 0;
2409 msg.enablePort = 0;
2410 msg.disablePort = 1;
2411 }
2412 /* Sending intermediate configs */
2413 else {
2414 msg._txOn = (!p_priv->break_on);
2415 msg._txOff = 0;
2416 msg.txFlush = 0;
2417 msg.txBreak = (p_priv->break_on);
2418 msg.rxOn = 0;
2419 msg.rxOff = 0;
2420 msg.rxFlush = 0;
2421 msg.rxForward = 0;
2422 msg.returnStatus = 0;
2423 msg.resetDataToggle = 0x0;
2424 msg.enablePort = 0;
2425 msg.disablePort = 0;
2426 }
2427
2428 /* Do handshaking outputs */
2429 msg.setRts = 0xff;
2430 msg.rts = p_priv->rts_state;
2431
2432 msg.setDtr = 0xff;
2433 msg.dtr = p_priv->dtr_state;
2434
2435 p_priv->resend_cont = 0;
2436
2437 /* if the device is a 49wg, we send control message on usb
2438 control EP 0 */
2439
2440 if (d_details->product_id == keyspan_usa49wg_product_id) {
2441 dr = (void *)(s_priv->ctrl_buf);
2442 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2443 dr->bRequest = 0xB0; /* 49wg control message */
2444 dr->wValue = 0;
2445 dr->wIndex = 0;
2446 dr->wLength = cpu_to_le16(sizeof(msg));
2447
2448 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2449
2450 usb_fill_control_urb(this_urb, serial->dev,
2451 usb_sndctrlpipe(serial->dev, 0),
2452 (unsigned char *)dr, s_priv->glocont_buf,
2453 sizeof(msg), usa49_glocont_callback, serial);
2454
2455 } else {
2456 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2457
2458 /* send the data out the device on control endpoint */
2459 this_urb->transfer_buffer_length = sizeof(msg);
2460 }
2461 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2462 if (err != 0)
2463 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2464
2465 return 0;
2466 }
2467
keyspan_usa90_send_setup(struct usb_serial * serial,struct usb_serial_port * port,int reset_port)2468 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2469 struct usb_serial_port *port,
2470 int reset_port)
2471 {
2472 struct keyspan_usa90_portControlMessage msg;
2473 struct keyspan_serial_private *s_priv;
2474 struct keyspan_port_private *p_priv;
2475 const struct keyspan_device_details *d_details;
2476 struct urb *this_urb;
2477 int err;
2478 u8 prescaler;
2479
2480 s_priv = usb_get_serial_data(serial);
2481 p_priv = usb_get_serial_port_data(port);
2482 d_details = s_priv->device_details;
2483
2484 /* only do something if we have a bulk out endpoint */
2485 this_urb = p_priv->outcont_urb;
2486 if (this_urb == NULL) {
2487 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2488 return -1;
2489 }
2490
2491 /* Save reset port val for resend.
2492 Don't overwrite resend for open/close condition. */
2493 if ((reset_port + 1) > p_priv->resend_cont)
2494 p_priv->resend_cont = reset_port + 1;
2495 if (this_urb->status == -EINPROGRESS) {
2496 dev_dbg(&port->dev, "%s already writing\n", __func__);
2497 mdelay(5);
2498 return -1;
2499 }
2500
2501 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2502
2503 /* Only set baud rate if it's changed */
2504 if (p_priv->old_baud != p_priv->baud) {
2505 p_priv->old_baud = p_priv->baud;
2506 msg.setClocking = 0x01;
2507 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2508 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2509 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2510 __func__, p_priv->baud);
2511 p_priv->baud = 9600;
2512 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2513 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2514 }
2515 msg.setRxMode = 1;
2516 msg.setTxMode = 1;
2517 }
2518
2519 /* modes must always be correctly specified */
2520 if (p_priv->baud > 57600) {
2521 msg.rxMode = RXMODE_DMA;
2522 msg.txMode = TXMODE_DMA;
2523 } else {
2524 msg.rxMode = RXMODE_BYHAND;
2525 msg.txMode = TXMODE_BYHAND;
2526 }
2527
2528 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2529 switch (p_priv->cflag & CSIZE) {
2530 case CS5:
2531 msg.lcr |= USA_DATABITS_5;
2532 break;
2533 case CS6:
2534 msg.lcr |= USA_DATABITS_6;
2535 break;
2536 case CS7:
2537 msg.lcr |= USA_DATABITS_7;
2538 break;
2539 case CS8:
2540 msg.lcr |= USA_DATABITS_8;
2541 break;
2542 }
2543 if (p_priv->cflag & PARENB) {
2544 /* note USA_PARITY_NONE == 0 */
2545 msg.lcr |= (p_priv->cflag & PARODD) ?
2546 USA_PARITY_ODD : USA_PARITY_EVEN;
2547 }
2548 if (p_priv->old_cflag != p_priv->cflag) {
2549 p_priv->old_cflag = p_priv->cflag;
2550 msg.setLcr = 0x01;
2551 }
2552
2553 if (p_priv->flow_control == flow_cts)
2554 msg.txFlowControl = TXFLOW_CTS;
2555 msg.setTxFlowControl = 0x01;
2556 msg.setRxFlowControl = 0x01;
2557
2558 msg.rxForwardingLength = 16;
2559 msg.rxForwardingTimeout = 16;
2560 msg.txAckSetting = 0;
2561 msg.xonChar = 17;
2562 msg.xoffChar = 19;
2563
2564 /* Opening port */
2565 if (reset_port == 1) {
2566 msg.portEnabled = 1;
2567 msg.rxFlush = 1;
2568 msg.txBreak = (p_priv->break_on);
2569 }
2570 /* Closing port */
2571 else if (reset_port == 2)
2572 msg.portEnabled = 0;
2573 /* Sending intermediate configs */
2574 else {
2575 msg.portEnabled = 1;
2576 msg.txBreak = (p_priv->break_on);
2577 }
2578
2579 /* Do handshaking outputs */
2580 msg.setRts = 0x01;
2581 msg.rts = p_priv->rts_state;
2582
2583 msg.setDtr = 0x01;
2584 msg.dtr = p_priv->dtr_state;
2585
2586 p_priv->resend_cont = 0;
2587 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2588
2589 /* send the data out the device on control endpoint */
2590 this_urb->transfer_buffer_length = sizeof(msg);
2591
2592 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2593 if (err != 0)
2594 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2595 return 0;
2596 }
2597
keyspan_usa67_send_setup(struct usb_serial * serial,struct usb_serial_port * port,int reset_port)2598 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2599 struct usb_serial_port *port,
2600 int reset_port)
2601 {
2602 struct keyspan_usa67_portControlMessage msg;
2603 struct keyspan_serial_private *s_priv;
2604 struct keyspan_port_private *p_priv;
2605 const struct keyspan_device_details *d_details;
2606 struct urb *this_urb;
2607 int err, device_port;
2608
2609 s_priv = usb_get_serial_data(serial);
2610 p_priv = usb_get_serial_port_data(port);
2611 d_details = s_priv->device_details;
2612
2613 this_urb = s_priv->glocont_urb;
2614
2615 /* Work out which port within the device is being setup */
2616 device_port = port->port_number;
2617
2618 /* Make sure we have an urb then send the message */
2619 if (this_urb == NULL) {
2620 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2621 return -1;
2622 }
2623
2624 /* Save reset port val for resend.
2625 Don't overwrite resend for open/close condition. */
2626 if ((reset_port + 1) > p_priv->resend_cont)
2627 p_priv->resend_cont = reset_port + 1;
2628 if (this_urb->status == -EINPROGRESS) {
2629 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2630 mdelay(5);
2631 return -1;
2632 }
2633
2634 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2635
2636 msg.port = device_port;
2637
2638 /* Only set baud rate if it's changed */
2639 if (p_priv->old_baud != p_priv->baud) {
2640 p_priv->old_baud = p_priv->baud;
2641 msg.setClocking = 0xff;
2642 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2643 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2644 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2645 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2646 __func__, p_priv->baud);
2647 msg.baudLo = 0;
2648 msg.baudHi = 125; /* Values for 9600 baud */
2649 msg.prescaler = 10;
2650 }
2651 msg.setPrescaler = 0xff;
2652 }
2653
2654 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2655 switch (p_priv->cflag & CSIZE) {
2656 case CS5:
2657 msg.lcr |= USA_DATABITS_5;
2658 break;
2659 case CS6:
2660 msg.lcr |= USA_DATABITS_6;
2661 break;
2662 case CS7:
2663 msg.lcr |= USA_DATABITS_7;
2664 break;
2665 case CS8:
2666 msg.lcr |= USA_DATABITS_8;
2667 break;
2668 }
2669 if (p_priv->cflag & PARENB) {
2670 /* note USA_PARITY_NONE == 0 */
2671 msg.lcr |= (p_priv->cflag & PARODD) ?
2672 USA_PARITY_ODD : USA_PARITY_EVEN;
2673 }
2674 msg.setLcr = 0xff;
2675
2676 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2677 msg.xonFlowControl = 0;
2678 msg.setFlowControl = 0xff;
2679 msg.forwardingLength = 16;
2680 msg.xonChar = 17;
2681 msg.xoffChar = 19;
2682
2683 if (reset_port == 1) {
2684 /* Opening port */
2685 msg._txOn = 1;
2686 msg._txOff = 0;
2687 msg.txFlush = 0;
2688 msg.txBreak = 0;
2689 msg.rxOn = 1;
2690 msg.rxOff = 0;
2691 msg.rxFlush = 1;
2692 msg.rxForward = 0;
2693 msg.returnStatus = 0;
2694 msg.resetDataToggle = 0xff;
2695 } else if (reset_port == 2) {
2696 /* Closing port */
2697 msg._txOn = 0;
2698 msg._txOff = 1;
2699 msg.txFlush = 0;
2700 msg.txBreak = 0;
2701 msg.rxOn = 0;
2702 msg.rxOff = 1;
2703 msg.rxFlush = 1;
2704 msg.rxForward = 0;
2705 msg.returnStatus = 0;
2706 msg.resetDataToggle = 0;
2707 } else {
2708 /* Sending intermediate configs */
2709 msg._txOn = (!p_priv->break_on);
2710 msg._txOff = 0;
2711 msg.txFlush = 0;
2712 msg.txBreak = (p_priv->break_on);
2713 msg.rxOn = 0;
2714 msg.rxOff = 0;
2715 msg.rxFlush = 0;
2716 msg.rxForward = 0;
2717 msg.returnStatus = 0;
2718 msg.resetDataToggle = 0x0;
2719 }
2720
2721 /* Do handshaking outputs */
2722 msg.setTxTriState_setRts = 0xff;
2723 msg.txTriState_rts = p_priv->rts_state;
2724
2725 msg.setHskoa_setDtr = 0xff;
2726 msg.hskoa_dtr = p_priv->dtr_state;
2727
2728 p_priv->resend_cont = 0;
2729
2730 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2731
2732 /* send the data out the device on control endpoint */
2733 this_urb->transfer_buffer_length = sizeof(msg);
2734
2735 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2736 if (err != 0)
2737 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2738 return 0;
2739 }
2740
keyspan_send_setup(struct usb_serial_port * port,int reset_port)2741 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2742 {
2743 struct usb_serial *serial = port->serial;
2744 struct keyspan_serial_private *s_priv;
2745 const struct keyspan_device_details *d_details;
2746
2747 s_priv = usb_get_serial_data(serial);
2748 d_details = s_priv->device_details;
2749
2750 switch (d_details->msg_format) {
2751 case msg_usa26:
2752 keyspan_usa26_send_setup(serial, port, reset_port);
2753 break;
2754 case msg_usa28:
2755 keyspan_usa28_send_setup(serial, port, reset_port);
2756 break;
2757 case msg_usa49:
2758 keyspan_usa49_send_setup(serial, port, reset_port);
2759 break;
2760 case msg_usa90:
2761 keyspan_usa90_send_setup(serial, port, reset_port);
2762 break;
2763 case msg_usa67:
2764 keyspan_usa67_send_setup(serial, port, reset_port);
2765 break;
2766 }
2767 }
2768
2769
2770 /* Gets called by the "real" driver (ie once firmware is loaded
2771 and renumeration has taken place. */
keyspan_startup(struct usb_serial * serial)2772 static int keyspan_startup(struct usb_serial *serial)
2773 {
2774 int i, err;
2775 struct keyspan_serial_private *s_priv;
2776 const struct keyspan_device_details *d_details;
2777
2778 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2779 if (d_details->product_id ==
2780 le16_to_cpu(serial->dev->descriptor.idProduct))
2781 break;
2782 if (d_details == NULL) {
2783 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2784 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2785 return -ENODEV;
2786 }
2787
2788 /* Setup private data for serial driver */
2789 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2790 if (!s_priv)
2791 return -ENOMEM;
2792
2793 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL);
2794 if (!s_priv->instat_buf)
2795 goto err_instat_buf;
2796
2797 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL);
2798 if (!s_priv->indat_buf)
2799 goto err_indat_buf;
2800
2801 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL);
2802 if (!s_priv->glocont_buf)
2803 goto err_glocont_buf;
2804
2805 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
2806 if (!s_priv->ctrl_buf)
2807 goto err_ctrl_buf;
2808
2809 s_priv->device_details = d_details;
2810 usb_set_serial_data(serial, s_priv);
2811
2812 keyspan_setup_urbs(serial);
2813
2814 if (s_priv->instat_urb != NULL) {
2815 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2816 if (err != 0)
2817 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
2818 }
2819 if (s_priv->indat_urb != NULL) {
2820 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2821 if (err != 0)
2822 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
2823 }
2824
2825 return 0;
2826
2827 err_ctrl_buf:
2828 kfree(s_priv->glocont_buf);
2829 err_glocont_buf:
2830 kfree(s_priv->indat_buf);
2831 err_indat_buf:
2832 kfree(s_priv->instat_buf);
2833 err_instat_buf:
2834 kfree(s_priv);
2835
2836 return -ENOMEM;
2837 }
2838
keyspan_disconnect(struct usb_serial * serial)2839 static void keyspan_disconnect(struct usb_serial *serial)
2840 {
2841 struct keyspan_serial_private *s_priv;
2842
2843 s_priv = usb_get_serial_data(serial);
2844
2845 usb_kill_urb(s_priv->instat_urb);
2846 usb_kill_urb(s_priv->glocont_urb);
2847 usb_kill_urb(s_priv->indat_urb);
2848 }
2849
keyspan_release(struct usb_serial * serial)2850 static void keyspan_release(struct usb_serial *serial)
2851 {
2852 struct keyspan_serial_private *s_priv;
2853
2854 s_priv = usb_get_serial_data(serial);
2855
2856 /* Make sure to unlink the URBs submitted in attach. */
2857 usb_kill_urb(s_priv->instat_urb);
2858 usb_kill_urb(s_priv->indat_urb);
2859
2860 usb_free_urb(s_priv->instat_urb);
2861 usb_free_urb(s_priv->indat_urb);
2862 usb_free_urb(s_priv->glocont_urb);
2863
2864 kfree(s_priv->ctrl_buf);
2865 kfree(s_priv->glocont_buf);
2866 kfree(s_priv->indat_buf);
2867 kfree(s_priv->instat_buf);
2868
2869 kfree(s_priv);
2870 }
2871
keyspan_port_probe(struct usb_serial_port * port)2872 static int keyspan_port_probe(struct usb_serial_port *port)
2873 {
2874 struct usb_serial *serial = port->serial;
2875 struct keyspan_serial_private *s_priv;
2876 struct keyspan_port_private *p_priv;
2877 const struct keyspan_device_details *d_details;
2878 struct callbacks *cback;
2879 int endp;
2880 int port_num;
2881 int i;
2882
2883 s_priv = usb_get_serial_data(serial);
2884 d_details = s_priv->device_details;
2885
2886 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL);
2887 if (!p_priv)
2888 return -ENOMEM;
2889
2890 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
2891 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
2892 if (!p_priv->in_buffer[i])
2893 goto err_in_buffer;
2894 }
2895
2896 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
2897 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
2898 if (!p_priv->out_buffer[i])
2899 goto err_out_buffer;
2900 }
2901
2902 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
2903 if (!p_priv->inack_buffer)
2904 goto err_inack_buffer;
2905
2906 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
2907 if (!p_priv->outcont_buffer)
2908 goto err_outcont_buffer;
2909
2910 p_priv->device_details = d_details;
2911
2912 /* Setup values for the various callback routines */
2913 cback = &keyspan_callbacks[d_details->msg_format];
2914
2915 port_num = port->port_number;
2916
2917 /* Do indat endpoints first, once for each flip */
2918 endp = d_details->indat_endpoints[port_num];
2919 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) {
2920 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp,
2921 USB_DIR_IN, port,
2922 p_priv->in_buffer[i],
2923 IN_BUFLEN,
2924 cback->indat_callback);
2925 }
2926 /* outdat endpoints also have flip */
2927 endp = d_details->outdat_endpoints[port_num];
2928 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) {
2929 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp,
2930 USB_DIR_OUT, port,
2931 p_priv->out_buffer[i],
2932 OUT_BUFLEN,
2933 cback->outdat_callback);
2934 }
2935 /* inack endpoint */
2936 p_priv->inack_urb = keyspan_setup_urb(serial,
2937 d_details->inack_endpoints[port_num],
2938 USB_DIR_IN, port,
2939 p_priv->inack_buffer,
2940 INACK_BUFLEN,
2941 cback->inack_callback);
2942 /* outcont endpoint */
2943 p_priv->outcont_urb = keyspan_setup_urb(serial,
2944 d_details->outcont_endpoints[port_num],
2945 USB_DIR_OUT, port,
2946 p_priv->outcont_buffer,
2947 OUTCONT_BUFLEN,
2948 cback->outcont_callback);
2949
2950 usb_set_serial_port_data(port, p_priv);
2951
2952 return 0;
2953
2954 err_outcont_buffer:
2955 kfree(p_priv->inack_buffer);
2956 err_inack_buffer:
2957 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2958 kfree(p_priv->out_buffer[i]);
2959 err_out_buffer:
2960 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2961 kfree(p_priv->in_buffer[i]);
2962 err_in_buffer:
2963 kfree(p_priv);
2964
2965 return -ENOMEM;
2966 }
2967
keyspan_port_remove(struct usb_serial_port * port)2968 static void keyspan_port_remove(struct usb_serial_port *port)
2969 {
2970 struct keyspan_port_private *p_priv;
2971 int i;
2972
2973 p_priv = usb_get_serial_port_data(port);
2974
2975 usb_kill_urb(p_priv->inack_urb);
2976 usb_kill_urb(p_priv->outcont_urb);
2977 for (i = 0; i < 2; i++) {
2978 usb_kill_urb(p_priv->in_urbs[i]);
2979 usb_kill_urb(p_priv->out_urbs[i]);
2980 }
2981
2982 usb_free_urb(p_priv->inack_urb);
2983 usb_free_urb(p_priv->outcont_urb);
2984 for (i = 0; i < 2; i++) {
2985 usb_free_urb(p_priv->in_urbs[i]);
2986 usb_free_urb(p_priv->out_urbs[i]);
2987 }
2988
2989 kfree(p_priv->outcont_buffer);
2990 kfree(p_priv->inack_buffer);
2991 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2992 kfree(p_priv->out_buffer[i]);
2993 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2994 kfree(p_priv->in_buffer[i]);
2995
2996 kfree(p_priv);
2997 }
2998
2999 /* Structs for the devices, pre and post renumeration. */
3000 static struct usb_serial_driver keyspan_pre_device = {
3001 .driver = {
3002 .owner = THIS_MODULE,
3003 .name = "keyspan_no_firm",
3004 },
3005 .description = "Keyspan - (without firmware)",
3006 .id_table = keyspan_pre_ids,
3007 .num_ports = 1,
3008 .attach = keyspan_fake_startup,
3009 };
3010
3011 static struct usb_serial_driver keyspan_1port_device = {
3012 .driver = {
3013 .owner = THIS_MODULE,
3014 .name = "keyspan_1",
3015 },
3016 .description = "Keyspan 1 port adapter",
3017 .id_table = keyspan_1port_ids,
3018 .num_ports = 1,
3019 .open = keyspan_open,
3020 .close = keyspan_close,
3021 .dtr_rts = keyspan_dtr_rts,
3022 .write = keyspan_write,
3023 .write_room = keyspan_write_room,
3024 .set_termios = keyspan_set_termios,
3025 .break_ctl = keyspan_break_ctl,
3026 .tiocmget = keyspan_tiocmget,
3027 .tiocmset = keyspan_tiocmset,
3028 .attach = keyspan_startup,
3029 .disconnect = keyspan_disconnect,
3030 .release = keyspan_release,
3031 .port_probe = keyspan_port_probe,
3032 .port_remove = keyspan_port_remove,
3033 };
3034
3035 static struct usb_serial_driver keyspan_2port_device = {
3036 .driver = {
3037 .owner = THIS_MODULE,
3038 .name = "keyspan_2",
3039 },
3040 .description = "Keyspan 2 port adapter",
3041 .id_table = keyspan_2port_ids,
3042 .num_ports = 2,
3043 .open = keyspan_open,
3044 .close = keyspan_close,
3045 .dtr_rts = keyspan_dtr_rts,
3046 .write = keyspan_write,
3047 .write_room = keyspan_write_room,
3048 .set_termios = keyspan_set_termios,
3049 .break_ctl = keyspan_break_ctl,
3050 .tiocmget = keyspan_tiocmget,
3051 .tiocmset = keyspan_tiocmset,
3052 .attach = keyspan_startup,
3053 .disconnect = keyspan_disconnect,
3054 .release = keyspan_release,
3055 .port_probe = keyspan_port_probe,
3056 .port_remove = keyspan_port_remove,
3057 };
3058
3059 static struct usb_serial_driver keyspan_4port_device = {
3060 .driver = {
3061 .owner = THIS_MODULE,
3062 .name = "keyspan_4",
3063 },
3064 .description = "Keyspan 4 port adapter",
3065 .id_table = keyspan_4port_ids,
3066 .num_ports = 4,
3067 .open = keyspan_open,
3068 .close = keyspan_close,
3069 .dtr_rts = keyspan_dtr_rts,
3070 .write = keyspan_write,
3071 .write_room = keyspan_write_room,
3072 .set_termios = keyspan_set_termios,
3073 .break_ctl = keyspan_break_ctl,
3074 .tiocmget = keyspan_tiocmget,
3075 .tiocmset = keyspan_tiocmset,
3076 .attach = keyspan_startup,
3077 .disconnect = keyspan_disconnect,
3078 .release = keyspan_release,
3079 .port_probe = keyspan_port_probe,
3080 .port_remove = keyspan_port_remove,
3081 };
3082
3083 static struct usb_serial_driver * const serial_drivers[] = {
3084 &keyspan_pre_device, &keyspan_1port_device,
3085 &keyspan_2port_device, &keyspan_4port_device, NULL
3086 };
3087
3088 module_usb_serial_driver(serial_drivers, keyspan_ids_combined);
3089
3090 MODULE_AUTHOR(DRIVER_AUTHOR);
3091 MODULE_DESCRIPTION(DRIVER_DESC);
3092 MODULE_LICENSE("GPL");
3093
3094 MODULE_FIRMWARE("keyspan/usa28.fw");
3095 MODULE_FIRMWARE("keyspan/usa28x.fw");
3096 MODULE_FIRMWARE("keyspan/usa28xa.fw");
3097 MODULE_FIRMWARE("keyspan/usa28xb.fw");
3098 MODULE_FIRMWARE("keyspan/usa19.fw");
3099 MODULE_FIRMWARE("keyspan/usa19qi.fw");
3100 MODULE_FIRMWARE("keyspan/mpr.fw");
3101 MODULE_FIRMWARE("keyspan/usa19qw.fw");
3102 MODULE_FIRMWARE("keyspan/usa18x.fw");
3103 MODULE_FIRMWARE("keyspan/usa19w.fw");
3104 MODULE_FIRMWARE("keyspan/usa49w.fw");
3105 MODULE_FIRMWARE("keyspan/usa49wlc.fw");
3106