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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / usb / serial / keyspan.c
blob9129e0282c246e370d8cb87354b8c7d786f93335
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
602 static int 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 /* FIXME: return errors */
615 keyspan_send_setup(port, 0);
616
617 return 0;
618 }
619
620
621 static void keyspan_set_termios(struct tty_struct *tty,
622 struct usb_serial_port *port,
623 const struct ktermios *old_termios)
624 {
625 int baud_rate, device_port;
626 struct keyspan_port_private *p_priv;
627 const struct keyspan_device_details *d_details;
628 unsigned int cflag;
629
630 p_priv = usb_get_serial_port_data(port);
631 d_details = p_priv->device_details;
632 cflag = tty->termios.c_cflag;
633 device_port = port->port_number;
634
635 /* Baud rate calculation takes baud rate as an integer
636 so other rates can be generated if desired. */
637 baud_rate = tty_get_baud_rate(tty);
638 /* If no match or invalid, don't change */
639 if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
640 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
641 /* FIXME - more to do here to ensure rate changes cleanly */
642 /* FIXME - calculate exact rate from divisor ? */
643 p_priv->baud = baud_rate;
644 } else
645 baud_rate = tty_termios_baud_rate(old_termios);
646
647 tty_encode_baud_rate(tty, baud_rate, baud_rate);
648 /* set CTS/RTS handshake etc. */
649 p_priv->cflag = cflag;
650 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
651
652 /* Mark/Space not supported */
653 tty->termios.c_cflag &= ~CMSPAR;
654
655 keyspan_send_setup(port, 0);
656 }
657
658 static int keyspan_tiocmget(struct tty_struct *tty)
659 {
660 struct usb_serial_port *port = tty->driver_data;
661 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
662 unsigned int value;
663
664 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
665 ((p_priv->dtr_state) ? TIOCM_DTR : 0) |
666 ((p_priv->cts_state) ? TIOCM_CTS : 0) |
667 ((p_priv->dsr_state) ? TIOCM_DSR : 0) |
668 ((p_priv->dcd_state) ? TIOCM_CAR : 0) |
669 ((p_priv->ri_state) ? TIOCM_RNG : 0);
670
671 return value;
672 }
673
674 static int keyspan_tiocmset(struct tty_struct *tty,
675 unsigned int set, unsigned int clear)
676 {
677 struct usb_serial_port *port = tty->driver_data;
678 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
679
680 if (set & TIOCM_RTS)
681 p_priv->rts_state = 1;
682 if (set & TIOCM_DTR)
683 p_priv->dtr_state = 1;
684 if (clear & TIOCM_RTS)
685 p_priv->rts_state = 0;
686 if (clear & TIOCM_DTR)
687 p_priv->dtr_state = 0;
688 keyspan_send_setup(port, 0);
689 return 0;
690 }
691
692 /* Write function is similar for the four protocols used
693 with only a minor change for usa90 (usa19hs) required */
694 static int keyspan_write(struct tty_struct *tty,
695 struct usb_serial_port *port, const unsigned char *buf, int count)
696 {
697 struct keyspan_port_private *p_priv;
698 const struct keyspan_device_details *d_details;
699 int flip;
700 int left, todo;
701 struct urb *this_urb;
702 int err, maxDataLen, dataOffset;
703
704 p_priv = usb_get_serial_port_data(port);
705 d_details = p_priv->device_details;
706
707 if (d_details->msg_format == msg_usa90) {
708 maxDataLen = 64;
709 dataOffset = 0;
710 } else {
711 maxDataLen = 63;
712 dataOffset = 1;
713 }
714
715 dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count,
716 p_priv->out_flip);
717
718 for (left = count; left > 0; left -= todo) {
719 todo = left;
720 if (todo > maxDataLen)
721 todo = maxDataLen;
722
723 flip = p_priv->out_flip;
724
725 /* Check we have a valid urb/endpoint before we use it... */
726 this_urb = p_priv->out_urbs[flip];
727 if (this_urb == NULL) {
728 /* no bulk out, so return 0 bytes written */
729 dev_dbg(&port->dev, "%s - no output urb :(\n", __func__);
730 return count;
731 }
732
733 dev_dbg(&port->dev, "%s - endpoint %x flip %d\n",
734 __func__, usb_pipeendpoint(this_urb->pipe), flip);
735
736 if (this_urb->status == -EINPROGRESS) {
737 if (time_before(jiffies,
738 p_priv->tx_start_time[flip] + 10 * HZ))
739 break;
740 usb_unlink_urb(this_urb);
741 break;
742 }
743
744 /* First byte in buffer is "last flag" (except for usa19hx)
745 - unused so for now so set to zero */
746 ((char *)this_urb->transfer_buffer)[0] = 0;
747
748 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo);
749 buf += todo;
750
751 /* send the data out the bulk port */
752 this_urb->transfer_buffer_length = todo + dataOffset;
753
754 err = usb_submit_urb(this_urb, GFP_ATOMIC);
755 if (err != 0)
756 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err);
757 p_priv->tx_start_time[flip] = jiffies;
758
759 /* Flip for next time if usa26 or usa28 interface
760 (not used on usa49) */
761 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
762 }
763
764 return count - left;
765 }
766
767 static void usa26_indat_callback(struct urb *urb)
768 {
769 int i, err;
770 int endpoint;
771 struct usb_serial_port *port;
772 unsigned char *data = urb->transfer_buffer;
773 int status = urb->status;
774
775 endpoint = usb_pipeendpoint(urb->pipe);
776
777 if (status) {
778 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
779 __func__, status, endpoint);
780 return;
781 }
782
783 port = urb->context;
784 if (urb->actual_length) {
785 /* 0x80 bit is error flag */
786 if ((data[0] & 0x80) == 0) {
787 /* no errors on individual bytes, only
788 possible overrun err */
789 if (data[0] & RXERROR_OVERRUN) {
790 tty_insert_flip_char(&port->port, 0,
791 TTY_OVERRUN);
792 }
793 for (i = 1; i < urb->actual_length ; ++i)
794 tty_insert_flip_char(&port->port, data[i],
795 TTY_NORMAL);
796 } else {
797 /* some bytes had errors, every byte has status */
798 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
799 for (i = 0; i + 1 < urb->actual_length; i += 2) {
800 int stat = data[i];
801 int flag = TTY_NORMAL;
802
803 if (stat & RXERROR_OVERRUN) {
804 tty_insert_flip_char(&port->port, 0,
805 TTY_OVERRUN);
806 }
807 /* XXX should handle break (0x10) */
808 if (stat & RXERROR_PARITY)
809 flag = TTY_PARITY;
810 else if (stat & RXERROR_FRAMING)
811 flag = TTY_FRAME;
812
813 tty_insert_flip_char(&port->port, data[i+1],
814 flag);
815 }
816 }
817 tty_flip_buffer_push(&port->port);
818 }
819
820 /* Resubmit urb so we continue receiving */
821 err = usb_submit_urb(urb, GFP_ATOMIC);
822 if (err != 0)
823 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
824 }
825
826 /* Outdat handling is common for all devices */
827 static void usa2x_outdat_callback(struct urb *urb)
828 {
829 struct usb_serial_port *port;
830 struct keyspan_port_private *p_priv;
831
832 port = urb->context;
833 p_priv = usb_get_serial_port_data(port);
834 dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]);
835
836 usb_serial_port_softint(port);
837 }
838
839 static void usa26_inack_callback(struct urb *urb)
840 {
841 }
842
843 static void usa26_outcont_callback(struct urb *urb)
844 {
845 struct usb_serial_port *port;
846 struct keyspan_port_private *p_priv;
847
848 port = urb->context;
849 p_priv = usb_get_serial_port_data(port);
850
851 if (p_priv->resend_cont) {
852 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
853 keyspan_usa26_send_setup(port->serial, port,
854 p_priv->resend_cont - 1);
855 }
856 }
857
858 static void usa26_instat_callback(struct urb *urb)
859 {
860 unsigned char *data = urb->transfer_buffer;
861 struct keyspan_usa26_portStatusMessage *msg;
862 struct usb_serial *serial;
863 struct usb_serial_port *port;
864 struct keyspan_port_private *p_priv;
865 int old_dcd_state, err;
866 int status = urb->status;
867
868 serial = urb->context;
869
870 if (status) {
871 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
872 __func__, status);
873 return;
874 }
875 if (urb->actual_length != 9) {
876 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
877 goto exit;
878 }
879
880 msg = (struct keyspan_usa26_portStatusMessage *)data;
881
882 /* Check port number from message and retrieve private data */
883 if (msg->port >= serial->num_ports) {
884 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
885 goto exit;
886 }
887 port = serial->port[msg->port];
888 p_priv = usb_get_serial_port_data(port);
889 if (!p_priv)
890 goto resubmit;
891
892 /* Update handshaking pin state information */
893 old_dcd_state = p_priv->dcd_state;
894 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
895 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
896 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
897 p_priv->ri_state = ((msg->ri) ? 1 : 0);
898
899 if (old_dcd_state != p_priv->dcd_state)
900 tty_port_tty_hangup(&port->port, true);
901 resubmit:
902 /* Resubmit urb so we continue receiving */
903 err = usb_submit_urb(urb, GFP_ATOMIC);
904 if (err != 0)
905 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
906 exit: ;
907 }
908
909 static void usa26_glocont_callback(struct urb *urb)
910 {
911 }
912
913
914 static void usa28_indat_callback(struct urb *urb)
915 {
916 int err;
917 struct usb_serial_port *port;
918 unsigned char *data;
919 struct keyspan_port_private *p_priv;
920 int status = urb->status;
921
922 port = urb->context;
923 p_priv = usb_get_serial_port_data(port);
924
925 if (urb != p_priv->in_urbs[p_priv->in_flip])
926 return;
927
928 do {
929 if (status) {
930 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
931 __func__, status, usb_pipeendpoint(urb->pipe));
932 return;
933 }
934
935 port = urb->context;
936 p_priv = usb_get_serial_port_data(port);
937 data = urb->transfer_buffer;
938
939 if (urb->actual_length) {
940 tty_insert_flip_string(&port->port, data,
941 urb->actual_length);
942 tty_flip_buffer_push(&port->port);
943 }
944
945 /* Resubmit urb so we continue receiving */
946 err = usb_submit_urb(urb, GFP_ATOMIC);
947 if (err != 0)
948 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n",
949 __func__, err);
950 p_priv->in_flip ^= 1;
951
952 urb = p_priv->in_urbs[p_priv->in_flip];
953 } while (urb->status != -EINPROGRESS);
954 }
955
956 static void usa28_inack_callback(struct urb *urb)
957 {
958 }
959
960 static void usa28_outcont_callback(struct urb *urb)
961 {
962 struct usb_serial_port *port;
963 struct keyspan_port_private *p_priv;
964
965 port = urb->context;
966 p_priv = usb_get_serial_port_data(port);
967
968 if (p_priv->resend_cont) {
969 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
970 keyspan_usa28_send_setup(port->serial, port,
971 p_priv->resend_cont - 1);
972 }
973 }
974
975 static void usa28_instat_callback(struct urb *urb)
976 {
977 int err;
978 unsigned char *data = urb->transfer_buffer;
979 struct keyspan_usa28_portStatusMessage *msg;
980 struct usb_serial *serial;
981 struct usb_serial_port *port;
982 struct keyspan_port_private *p_priv;
983 int old_dcd_state;
984 int status = urb->status;
985
986 serial = urb->context;
987
988 if (status) {
989 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
990 __func__, status);
991 return;
992 }
993
994 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
995 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
996 goto exit;
997 }
998
999 msg = (struct keyspan_usa28_portStatusMessage *)data;
1000
1001 /* Check port number from message and retrieve private data */
1002 if (msg->port >= serial->num_ports) {
1003 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1004 goto exit;
1005 }
1006 port = serial->port[msg->port];
1007 p_priv = usb_get_serial_port_data(port);
1008 if (!p_priv)
1009 goto resubmit;
1010
1011 /* Update handshaking pin state information */
1012 old_dcd_state = p_priv->dcd_state;
1013 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1014 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1015 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1016 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1017
1018 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1019 tty_port_tty_hangup(&port->port, true);
1020 resubmit:
1021 /* Resubmit urb so we continue receiving */
1022 err = usb_submit_urb(urb, GFP_ATOMIC);
1023 if (err != 0)
1024 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1025 exit: ;
1026 }
1027
1028 static void usa28_glocont_callback(struct urb *urb)
1029 {
1030 }
1031
1032
1033 static void usa49_glocont_callback(struct urb *urb)
1034 {
1035 struct usb_serial *serial;
1036 struct usb_serial_port *port;
1037 struct keyspan_port_private *p_priv;
1038 int i;
1039
1040 serial = urb->context;
1041 for (i = 0; i < serial->num_ports; ++i) {
1042 port = serial->port[i];
1043 p_priv = usb_get_serial_port_data(port);
1044 if (!p_priv)
1045 continue;
1046
1047 if (p_priv->resend_cont) {
1048 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1049 keyspan_usa49_send_setup(serial, port,
1050 p_priv->resend_cont - 1);
1051 break;
1052 }
1053 }
1054 }
1055
1056 /* This is actually called glostat in the Keyspan
1057 doco */
1058 static void usa49_instat_callback(struct urb *urb)
1059 {
1060 int err;
1061 unsigned char *data = urb->transfer_buffer;
1062 struct keyspan_usa49_portStatusMessage *msg;
1063 struct usb_serial *serial;
1064 struct usb_serial_port *port;
1065 struct keyspan_port_private *p_priv;
1066 int old_dcd_state;
1067 int status = urb->status;
1068
1069 serial = urb->context;
1070
1071 if (status) {
1072 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1073 __func__, status);
1074 return;
1075 }
1076
1077 if (urb->actual_length !=
1078 sizeof(struct keyspan_usa49_portStatusMessage)) {
1079 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1080 goto exit;
1081 }
1082
1083 msg = (struct keyspan_usa49_portStatusMessage *)data;
1084
1085 /* Check port number from message and retrieve private data */
1086 if (msg->portNumber >= serial->num_ports) {
1087 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1088 __func__, msg->portNumber);
1089 goto exit;
1090 }
1091 port = serial->port[msg->portNumber];
1092 p_priv = usb_get_serial_port_data(port);
1093 if (!p_priv)
1094 goto resubmit;
1095
1096 /* Update handshaking pin state information */
1097 old_dcd_state = p_priv->dcd_state;
1098 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1099 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1100 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1101 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1102
1103 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1104 tty_port_tty_hangup(&port->port, true);
1105 resubmit:
1106 /* Resubmit urb so we continue receiving */
1107 err = usb_submit_urb(urb, GFP_ATOMIC);
1108 if (err != 0)
1109 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1110 exit: ;
1111 }
1112
1113 static void usa49_inack_callback(struct urb *urb)
1114 {
1115 }
1116
1117 static void usa49_indat_callback(struct urb *urb)
1118 {
1119 int i, err;
1120 int endpoint;
1121 struct usb_serial_port *port;
1122 unsigned char *data = urb->transfer_buffer;
1123 int status = urb->status;
1124
1125 endpoint = usb_pipeendpoint(urb->pipe);
1126
1127 if (status) {
1128 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1129 __func__, status, endpoint);
1130 return;
1131 }
1132
1133 port = urb->context;
1134 if (urb->actual_length) {
1135 /* 0x80 bit is error flag */
1136 if ((data[0] & 0x80) == 0) {
1137 /* no error on any byte */
1138 tty_insert_flip_string(&port->port, data + 1,
1139 urb->actual_length - 1);
1140 } else {
1141 /* some bytes had errors, every byte has status */
1142 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1143 int stat = data[i];
1144 int flag = TTY_NORMAL;
1145
1146 if (stat & RXERROR_OVERRUN) {
1147 tty_insert_flip_char(&port->port, 0,
1148 TTY_OVERRUN);
1149 }
1150 /* XXX should handle break (0x10) */
1151 if (stat & RXERROR_PARITY)
1152 flag = TTY_PARITY;
1153 else if (stat & RXERROR_FRAMING)
1154 flag = TTY_FRAME;
1155
1156 tty_insert_flip_char(&port->port, data[i+1],
1157 flag);
1158 }
1159 }
1160 tty_flip_buffer_push(&port->port);
1161 }
1162
1163 /* Resubmit urb so we continue receiving */
1164 err = usb_submit_urb(urb, GFP_ATOMIC);
1165 if (err != 0)
1166 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1167 }
1168
1169 static void usa49wg_indat_callback(struct urb *urb)
1170 {
1171 int i, len, x, err;
1172 struct usb_serial *serial;
1173 struct usb_serial_port *port;
1174 unsigned char *data = urb->transfer_buffer;
1175 int status = urb->status;
1176
1177 serial = urb->context;
1178
1179 if (status) {
1180 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1181 __func__, status);
1182 return;
1183 }
1184
1185 /* inbound data is in the form P#, len, status, data */
1186 i = 0;
1187 len = 0;
1188
1189 while (i < urb->actual_length) {
1190
1191 /* Check port number from message */
1192 if (data[i] >= serial->num_ports) {
1193 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n",
1194 __func__, data[i]);
1195 return;
1196 }
1197 port = serial->port[data[i++]];
1198 len = data[i++];
1199
1200 /* 0x80 bit is error flag */
1201 if ((data[i] & 0x80) == 0) {
1202 /* no error on any byte */
1203 i++;
1204 for (x = 1; x < len && i < urb->actual_length; ++x)
1205 tty_insert_flip_char(&port->port,
1206 data[i++], 0);
1207 } else {
1208 /*
1209 * some bytes had errors, every byte has status
1210 */
1211 for (x = 0; x + 1 < len &&
1212 i + 1 < urb->actual_length; x += 2) {
1213 int stat = data[i];
1214 int flag = TTY_NORMAL;
1215
1216 if (stat & RXERROR_OVERRUN) {
1217 tty_insert_flip_char(&port->port, 0,
1218 TTY_OVERRUN);
1219 }
1220 /* XXX should handle break (0x10) */
1221 if (stat & RXERROR_PARITY)
1222 flag = TTY_PARITY;
1223 else if (stat & RXERROR_FRAMING)
1224 flag = TTY_FRAME;
1225
1226 tty_insert_flip_char(&port->port, data[i+1],
1227 flag);
1228 i += 2;
1229 }
1230 }
1231 tty_flip_buffer_push(&port->port);
1232 }
1233
1234 /* Resubmit urb so we continue receiving */
1235 err = usb_submit_urb(urb, GFP_ATOMIC);
1236 if (err != 0)
1237 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1238 }
1239
1240 /* not used, usa-49 doesn't have per-port control endpoints */
1241 static void usa49_outcont_callback(struct urb *urb)
1242 {
1243 }
1244
1245 static void usa90_indat_callback(struct urb *urb)
1246 {
1247 int i, err;
1248 int endpoint;
1249 struct usb_serial_port *port;
1250 struct keyspan_port_private *p_priv;
1251 unsigned char *data = urb->transfer_buffer;
1252 int status = urb->status;
1253
1254 endpoint = usb_pipeendpoint(urb->pipe);
1255
1256 if (status) {
1257 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n",
1258 __func__, status, endpoint);
1259 return;
1260 }
1261
1262 port = urb->context;
1263 p_priv = usb_get_serial_port_data(port);
1264
1265 if (urb->actual_length) {
1266 /* if current mode is DMA, looks like usa28 format
1267 otherwise looks like usa26 data format */
1268
1269 if (p_priv->baud > 57600)
1270 tty_insert_flip_string(&port->port, data,
1271 urb->actual_length);
1272 else {
1273 /* 0x80 bit is error flag */
1274 if ((data[0] & 0x80) == 0) {
1275 /* no errors on individual bytes, only
1276 possible overrun err*/
1277 if (data[0] & RXERROR_OVERRUN) {
1278 tty_insert_flip_char(&port->port, 0,
1279 TTY_OVERRUN);
1280 }
1281 for (i = 1; i < urb->actual_length ; ++i)
1282 tty_insert_flip_char(&port->port,
1283 data[i], TTY_NORMAL);
1284 } else {
1285 /* some bytes had errors, every byte has status */
1286 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__);
1287 for (i = 0; i + 1 < urb->actual_length; i += 2) {
1288 int stat = data[i];
1289 int flag = TTY_NORMAL;
1290
1291 if (stat & RXERROR_OVERRUN) {
1292 tty_insert_flip_char(
1293 &port->port, 0,
1294 TTY_OVERRUN);
1295 }
1296 /* XXX should handle break (0x10) */
1297 if (stat & RXERROR_PARITY)
1298 flag = TTY_PARITY;
1299 else if (stat & RXERROR_FRAMING)
1300 flag = TTY_FRAME;
1301
1302 tty_insert_flip_char(&port->port,
1303 data[i+1], flag);
1304 }
1305 }
1306 }
1307 tty_flip_buffer_push(&port->port);
1308 }
1309
1310 /* Resubmit urb so we continue receiving */
1311 err = usb_submit_urb(urb, GFP_ATOMIC);
1312 if (err != 0)
1313 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1314 }
1315
1316
1317 static void usa90_instat_callback(struct urb *urb)
1318 {
1319 unsigned char *data = urb->transfer_buffer;
1320 struct keyspan_usa90_portStatusMessage *msg;
1321 struct usb_serial *serial;
1322 struct usb_serial_port *port;
1323 struct keyspan_port_private *p_priv;
1324 int old_dcd_state, err;
1325 int status = urb->status;
1326
1327 serial = urb->context;
1328
1329 if (status) {
1330 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1331 __func__, status);
1332 return;
1333 }
1334 if (urb->actual_length < 14) {
1335 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length);
1336 goto exit;
1337 }
1338
1339 msg = (struct keyspan_usa90_portStatusMessage *)data;
1340
1341 /* Now do something useful with the data */
1342
1343 port = serial->port[0];
1344 p_priv = usb_get_serial_port_data(port);
1345 if (!p_priv)
1346 goto resubmit;
1347
1348 /* Update handshaking pin state information */
1349 old_dcd_state = p_priv->dcd_state;
1350 p_priv->cts_state = ((msg->cts) ? 1 : 0);
1351 p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
1352 p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
1353 p_priv->ri_state = ((msg->ri) ? 1 : 0);
1354
1355 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1356 tty_port_tty_hangup(&port->port, true);
1357 resubmit:
1358 /* Resubmit urb so we continue receiving */
1359 err = usb_submit_urb(urb, GFP_ATOMIC);
1360 if (err != 0)
1361 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1362 exit:
1363 ;
1364 }
1365
1366 static void usa90_outcont_callback(struct urb *urb)
1367 {
1368 struct usb_serial_port *port;
1369 struct keyspan_port_private *p_priv;
1370
1371 port = urb->context;
1372 p_priv = usb_get_serial_port_data(port);
1373
1374 if (p_priv->resend_cont) {
1375 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__);
1376 keyspan_usa90_send_setup(port->serial, port,
1377 p_priv->resend_cont - 1);
1378 }
1379 }
1380
1381 /* Status messages from the 28xg */
1382 static void usa67_instat_callback(struct urb *urb)
1383 {
1384 int err;
1385 unsigned char *data = urb->transfer_buffer;
1386 struct keyspan_usa67_portStatusMessage *msg;
1387 struct usb_serial *serial;
1388 struct usb_serial_port *port;
1389 struct keyspan_port_private *p_priv;
1390 int old_dcd_state;
1391 int status = urb->status;
1392
1393 serial = urb->context;
1394
1395 if (status) {
1396 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n",
1397 __func__, status);
1398 return;
1399 }
1400
1401 if (urb->actual_length !=
1402 sizeof(struct keyspan_usa67_portStatusMessage)) {
1403 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length);
1404 return;
1405 }
1406
1407
1408 /* Now do something useful with the data */
1409 msg = (struct keyspan_usa67_portStatusMessage *)data;
1410
1411 /* Check port number from message and retrieve private data */
1412 if (msg->port >= serial->num_ports) {
1413 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port);
1414 return;
1415 }
1416
1417 port = serial->port[msg->port];
1418 p_priv = usb_get_serial_port_data(port);
1419 if (!p_priv)
1420 goto resubmit;
1421
1422 /* Update handshaking pin state information */
1423 old_dcd_state = p_priv->dcd_state;
1424 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
1425 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
1426
1427 if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
1428 tty_port_tty_hangup(&port->port, true);
1429 resubmit:
1430 /* Resubmit urb so we continue receiving */
1431 err = usb_submit_urb(urb, GFP_ATOMIC);
1432 if (err != 0)
1433 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err);
1434 }
1435
1436 static void usa67_glocont_callback(struct urb *urb)
1437 {
1438 struct usb_serial *serial;
1439 struct usb_serial_port *port;
1440 struct keyspan_port_private *p_priv;
1441 int i;
1442
1443 serial = urb->context;
1444 for (i = 0; i < serial->num_ports; ++i) {
1445 port = serial->port[i];
1446 p_priv = usb_get_serial_port_data(port);
1447 if (!p_priv)
1448 continue;
1449
1450 if (p_priv->resend_cont) {
1451 dev_dbg(&port->dev, "%s - sending setup\n", __func__);
1452 keyspan_usa67_send_setup(serial, port,
1453 p_priv->resend_cont - 1);
1454 break;
1455 }
1456 }
1457 }
1458
1459 static unsigned int keyspan_write_room(struct tty_struct *tty)
1460 {
1461 struct usb_serial_port *port = tty->driver_data;
1462 struct keyspan_port_private *p_priv;
1463 const struct keyspan_device_details *d_details;
1464 int flip;
1465 unsigned int data_len;
1466 struct urb *this_urb;
1467
1468 p_priv = usb_get_serial_port_data(port);
1469 d_details = p_priv->device_details;
1470
1471 /* FIXME: locking */
1472 if (d_details->msg_format == msg_usa90)
1473 data_len = 64;
1474 else
1475 data_len = 63;
1476
1477 flip = p_priv->out_flip;
1478
1479 /* Check both endpoints to see if any are available. */
1480 this_urb = p_priv->out_urbs[flip];
1481 if (this_urb != NULL) {
1482 if (this_urb->status != -EINPROGRESS)
1483 return data_len;
1484 flip = (flip + 1) & d_details->outdat_endp_flip;
1485 this_urb = p_priv->out_urbs[flip];
1486 if (this_urb != NULL) {
1487 if (this_urb->status != -EINPROGRESS)
1488 return data_len;
1489 }
1490 }
1491 return 0;
1492 }
1493
1494
1495 static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
1496 {
1497 struct keyspan_port_private *p_priv;
1498 const struct keyspan_device_details *d_details;
1499 int i, err;
1500 int baud_rate, device_port;
1501 struct urb *urb;
1502 unsigned int cflag = 0;
1503
1504 p_priv = usb_get_serial_port_data(port);
1505 d_details = p_priv->device_details;
1506
1507 /* Set some sane defaults */
1508 p_priv->rts_state = 1;
1509 p_priv->dtr_state = 1;
1510 p_priv->baud = 9600;
1511
1512 /* force baud and lcr to be set on open */
1513 p_priv->old_baud = 0;
1514 p_priv->old_cflag = 0;
1515
1516 p_priv->out_flip = 0;
1517 p_priv->in_flip = 0;
1518
1519 /* Reset low level data toggle and start reading from endpoints */
1520 for (i = 0; i < 2; i++) {
1521 urb = p_priv->in_urbs[i];
1522 if (urb == NULL)
1523 continue;
1524
1525 /* make sure endpoint data toggle is synchronized
1526 with the device */
1527 usb_clear_halt(urb->dev, urb->pipe);
1528 err = usb_submit_urb(urb, GFP_KERNEL);
1529 if (err != 0)
1530 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err);
1531 }
1532
1533 /* Reset low level data toggle on out endpoints */
1534 for (i = 0; i < 2; i++) {
1535 urb = p_priv->out_urbs[i];
1536 if (urb == NULL)
1537 continue;
1538 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
1539 usb_pipeout(urb->pipe), 0); */
1540 }
1541
1542 /* get the terminal config for the setup message now so we don't
1543 * need to send 2 of them */
1544
1545 device_port = port->port_number;
1546 if (tty) {
1547 cflag = tty->termios.c_cflag;
1548 /* Baud rate calculation takes baud rate as an integer
1549 so other rates can be generated if desired. */
1550 baud_rate = tty_get_baud_rate(tty);
1551 /* If no match or invalid, leave as default */
1552 if (baud_rate >= 0
1553 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk,
1554 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
1555 p_priv->baud = baud_rate;
1556 }
1557 }
1558 /* set CTS/RTS handshake etc. */
1559 p_priv->cflag = cflag;
1560 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none;
1561
1562 keyspan_send_setup(port, 1);
1563 /* mdelay(100); */
1564 /* keyspan_set_termios(port, NULL); */
1565
1566 return 0;
1567 }
1568
1569 static void keyspan_dtr_rts(struct usb_serial_port *port, int on)
1570 {
1571 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port);
1572
1573 p_priv->rts_state = on;
1574 p_priv->dtr_state = on;
1575 keyspan_send_setup(port, 0);
1576 }
1577
1578 static void keyspan_close(struct usb_serial_port *port)
1579 {
1580 int i;
1581 struct keyspan_port_private *p_priv;
1582
1583 p_priv = usb_get_serial_port_data(port);
1584
1585 p_priv->rts_state = 0;
1586 p_priv->dtr_state = 0;
1587
1588 keyspan_send_setup(port, 2);
1589 /* pilot-xfer seems to work best with this delay */
1590 mdelay(100);
1591
1592 p_priv->out_flip = 0;
1593 p_priv->in_flip = 0;
1594
1595 usb_kill_urb(p_priv->inack_urb);
1596 for (i = 0; i < 2; i++) {
1597 usb_kill_urb(p_priv->in_urbs[i]);
1598 usb_kill_urb(p_priv->out_urbs[i]);
1599 }
1600 }
1601
1602 /* download the firmware to a pre-renumeration device */
1603 static int keyspan_fake_startup(struct usb_serial *serial)
1604 {
1605 char *fw_name;
1606
1607 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n",
1608 le16_to_cpu(serial->dev->descriptor.bcdDevice),
1609 le16_to_cpu(serial->dev->descriptor.idProduct));
1610
1611 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000)
1612 != 0x8000) {
1613 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n");
1614 return 1;
1615 }
1616
1617 /* Select firmware image on the basis of idProduct */
1618 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
1619 case keyspan_usa28_pre_product_id:
1620 fw_name = "keyspan/usa28.fw";
1621 break;
1622
1623 case keyspan_usa28x_pre_product_id:
1624 fw_name = "keyspan/usa28x.fw";
1625 break;
1626
1627 case keyspan_usa28xa_pre_product_id:
1628 fw_name = "keyspan/usa28xa.fw";
1629 break;
1630
1631 case keyspan_usa28xb_pre_product_id:
1632 fw_name = "keyspan/usa28xb.fw";
1633 break;
1634
1635 case keyspan_usa19_pre_product_id:
1636 fw_name = "keyspan/usa19.fw";
1637 break;
1638
1639 case keyspan_usa19qi_pre_product_id:
1640 fw_name = "keyspan/usa19qi.fw";
1641 break;
1642
1643 case keyspan_mpr_pre_product_id:
1644 fw_name = "keyspan/mpr.fw";
1645 break;
1646
1647 case keyspan_usa19qw_pre_product_id:
1648 fw_name = "keyspan/usa19qw.fw";
1649 break;
1650
1651 case keyspan_usa18x_pre_product_id:
1652 fw_name = "keyspan/usa18x.fw";
1653 break;
1654
1655 case keyspan_usa19w_pre_product_id:
1656 fw_name = "keyspan/usa19w.fw";
1657 break;
1658
1659 case keyspan_usa49w_pre_product_id:
1660 fw_name = "keyspan/usa49w.fw";
1661 break;
1662
1663 case keyspan_usa49wlc_pre_product_id:
1664 fw_name = "keyspan/usa49wlc.fw";
1665 break;
1666
1667 default:
1668 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n",
1669 le16_to_cpu(serial->dev->descriptor.idProduct));
1670 return 1;
1671 }
1672
1673 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name);
1674
1675 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) {
1676 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n",
1677 fw_name);
1678 return -ENOENT;
1679 }
1680
1681 /* after downloading firmware Renumeration will occur in a
1682 moment and the new device will bind to the real driver */
1683
1684 /* we don't want this device to have a driver assigned to it. */
1685 return 1;
1686 }
1687
1688 /* Helper functions used by keyspan_setup_urbs */
1689 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial,
1690 int endpoint)
1691 {
1692 struct usb_host_interface *iface_desc;
1693 struct usb_endpoint_descriptor *ep;
1694 int i;
1695
1696 iface_desc = serial->interface->cur_altsetting;
1697 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
1698 ep = &iface_desc->endpoint[i].desc;
1699 if (ep->bEndpointAddress == endpoint)
1700 return ep;
1701 }
1702 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n",
1703 endpoint);
1704 return NULL;
1705 }
1706
1707 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint,
1708 int dir, void *ctx, char *buf, int len,
1709 void (*callback)(struct urb *))
1710 {
1711 struct urb *urb;
1712 struct usb_endpoint_descriptor const *ep_desc;
1713 char const *ep_type_name;
1714
1715 if (endpoint == -1)
1716 return NULL; /* endpoint not needed */
1717
1718 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n",
1719 __func__, endpoint);
1720 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
1721 if (!urb)
1722 return NULL;
1723
1724 if (endpoint == 0) {
1725 /* control EP filled in when used */
1726 return urb;
1727 }
1728
1729 ep_desc = find_ep(serial, endpoint);
1730 if (!ep_desc) {
1731 usb_free_urb(urb);
1732 return NULL;
1733 }
1734 if (usb_endpoint_xfer_int(ep_desc)) {
1735 ep_type_name = "INT";
1736 usb_fill_int_urb(urb, serial->dev,
1737 usb_sndintpipe(serial->dev, endpoint) | dir,
1738 buf, len, callback, ctx,
1739 ep_desc->bInterval);
1740 } else if (usb_endpoint_xfer_bulk(ep_desc)) {
1741 ep_type_name = "BULK";
1742 usb_fill_bulk_urb(urb, serial->dev,
1743 usb_sndbulkpipe(serial->dev, endpoint) | dir,
1744 buf, len, callback, ctx);
1745 } else {
1746 dev_warn(&serial->interface->dev,
1747 "unsupported endpoint type %x\n",
1748 usb_endpoint_type(ep_desc));
1749 usb_free_urb(urb);
1750 return NULL;
1751 }
1752
1753 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n",
1754 __func__, urb, ep_type_name, endpoint);
1755 return urb;
1756 }
1757
1758 static struct callbacks {
1759 void (*instat_callback)(struct urb *);
1760 void (*glocont_callback)(struct urb *);
1761 void (*indat_callback)(struct urb *);
1762 void (*outdat_callback)(struct urb *);
1763 void (*inack_callback)(struct urb *);
1764 void (*outcont_callback)(struct urb *);
1765 } keyspan_callbacks[] = {
1766 {
1767 /* msg_usa26 callbacks */
1768 .instat_callback = usa26_instat_callback,
1769 .glocont_callback = usa26_glocont_callback,
1770 .indat_callback = usa26_indat_callback,
1771 .outdat_callback = usa2x_outdat_callback,
1772 .inack_callback = usa26_inack_callback,
1773 .outcont_callback = usa26_outcont_callback,
1774 }, {
1775 /* msg_usa28 callbacks */
1776 .instat_callback = usa28_instat_callback,
1777 .glocont_callback = usa28_glocont_callback,
1778 .indat_callback = usa28_indat_callback,
1779 .outdat_callback = usa2x_outdat_callback,
1780 .inack_callback = usa28_inack_callback,
1781 .outcont_callback = usa28_outcont_callback,
1782 }, {
1783 /* msg_usa49 callbacks */
1784 .instat_callback = usa49_instat_callback,
1785 .glocont_callback = usa49_glocont_callback,
1786 .indat_callback = usa49_indat_callback,
1787 .outdat_callback = usa2x_outdat_callback,
1788 .inack_callback = usa49_inack_callback,
1789 .outcont_callback = usa49_outcont_callback,
1790 }, {
1791 /* msg_usa90 callbacks */
1792 .instat_callback = usa90_instat_callback,
1793 .glocont_callback = usa28_glocont_callback,
1794 .indat_callback = usa90_indat_callback,
1795 .outdat_callback = usa2x_outdat_callback,
1796 .inack_callback = usa28_inack_callback,
1797 .outcont_callback = usa90_outcont_callback,
1798 }, {
1799 /* msg_usa67 callbacks */
1800 .instat_callback = usa67_instat_callback,
1801 .glocont_callback = usa67_glocont_callback,
1802 .indat_callback = usa26_indat_callback,
1803 .outdat_callback = usa2x_outdat_callback,
1804 .inack_callback = usa26_inack_callback,
1805 .outcont_callback = usa26_outcont_callback,
1806 }
1807 };
1808
1809 /* Generic setup urbs function that uses
1810 data in device_details */
1811 static void keyspan_setup_urbs(struct usb_serial *serial)
1812 {
1813 struct keyspan_serial_private *s_priv;
1814 const struct keyspan_device_details *d_details;
1815 struct callbacks *cback;
1816
1817 s_priv = usb_get_serial_data(serial);
1818 d_details = s_priv->device_details;
1819
1820 /* Setup values for the various callback routines */
1821 cback = &keyspan_callbacks[d_details->msg_format];
1822
1823 /* Allocate and set up urbs for each one that is in use,
1824 starting with instat endpoints */
1825 s_priv->instat_urb = keyspan_setup_urb
1826 (serial, d_details->instat_endpoint, USB_DIR_IN,
1827 serial, s_priv->instat_buf, INSTAT_BUFLEN,
1828 cback->instat_callback);
1829
1830 s_priv->indat_urb = keyspan_setup_urb
1831 (serial, d_details->indat_endpoint, USB_DIR_IN,
1832 serial, s_priv->indat_buf, INDAT49W_BUFLEN,
1833 usa49wg_indat_callback);
1834
1835 s_priv->glocont_urb = keyspan_setup_urb
1836 (serial, d_details->glocont_endpoint, USB_DIR_OUT,
1837 serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
1838 cback->glocont_callback);
1839 }
1840
1841 /* usa19 function doesn't require prescaler */
1842 static int keyspan_usa19_calc_baud(struct usb_serial_port *port,
1843 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1844 u8 *rate_low, u8 *prescaler, int portnum)
1845 {
1846 u32 b16, /* baud rate times 16 (actual rate used internally) */
1847 div, /* divisor */
1848 cnt; /* inverse of divisor (programmed into 8051) */
1849
1850 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1851
1852 /* prevent divide by zero... */
1853 b16 = baud_rate * 16L;
1854 if (b16 == 0)
1855 return KEYSPAN_INVALID_BAUD_RATE;
1856 /* Any "standard" rate over 57k6 is marginal on the USA-19
1857 as we run out of divisor resolution. */
1858 if (baud_rate > 57600)
1859 return KEYSPAN_INVALID_BAUD_RATE;
1860
1861 /* calculate the divisor and the counter (its inverse) */
1862 div = baudclk / b16;
1863 if (div == 0)
1864 return KEYSPAN_INVALID_BAUD_RATE;
1865 else
1866 cnt = 0 - div;
1867
1868 if (div > 0xffff)
1869 return KEYSPAN_INVALID_BAUD_RATE;
1870
1871 /* return the counter values if non-null */
1872 if (rate_low)
1873 *rate_low = (u8) (cnt & 0xff);
1874 if (rate_hi)
1875 *rate_hi = (u8) ((cnt >> 8) & 0xff);
1876 if (rate_low && rate_hi)
1877 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1878 __func__, baud_rate, *rate_hi, *rate_low);
1879 return KEYSPAN_BAUD_RATE_OK;
1880 }
1881
1882 /* usa19hs function doesn't require prescaler */
1883 static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port,
1884 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1885 u8 *rate_low, u8 *prescaler, int portnum)
1886 {
1887 u32 b16, /* baud rate times 16 (actual rate used internally) */
1888 div; /* divisor */
1889
1890 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1891
1892 /* prevent divide by zero... */
1893 b16 = baud_rate * 16L;
1894 if (b16 == 0)
1895 return KEYSPAN_INVALID_BAUD_RATE;
1896
1897 /* calculate the divisor */
1898 div = baudclk / b16;
1899 if (div == 0)
1900 return KEYSPAN_INVALID_BAUD_RATE;
1901
1902 if (div > 0xffff)
1903 return KEYSPAN_INVALID_BAUD_RATE;
1904
1905 /* return the counter values if non-null */
1906 if (rate_low)
1907 *rate_low = (u8) (div & 0xff);
1908
1909 if (rate_hi)
1910 *rate_hi = (u8) ((div >> 8) & 0xff);
1911
1912 if (rate_low && rate_hi)
1913 dev_dbg(&port->dev, "%s - %d %02x %02x.\n",
1914 __func__, baud_rate, *rate_hi, *rate_low);
1915
1916 return KEYSPAN_BAUD_RATE_OK;
1917 }
1918
1919 static int keyspan_usa19w_calc_baud(struct usb_serial_port *port,
1920 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1921 u8 *rate_low, u8 *prescaler, int portnum)
1922 {
1923 u32 b16, /* baud rate times 16 (actual rate used internally) */
1924 clk, /* clock with 13/8 prescaler */
1925 div, /* divisor using 13/8 prescaler */
1926 res, /* resulting baud rate using 13/8 prescaler */
1927 diff, /* error using 13/8 prescaler */
1928 smallest_diff;
1929 u8 best_prescaler;
1930 int i;
1931
1932 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1933
1934 /* prevent divide by zero */
1935 b16 = baud_rate * 16L;
1936 if (b16 == 0)
1937 return KEYSPAN_INVALID_BAUD_RATE;
1938
1939 /* Calculate prescaler by trying them all and looking
1940 for best fit */
1941
1942 /* start with largest possible difference */
1943 smallest_diff = 0xffffffff;
1944
1945 /* 0 is an invalid prescaler, used as a flag */
1946 best_prescaler = 0;
1947
1948 for (i = 8; i <= 0xff; ++i) {
1949 clk = (baudclk * 8) / (u32) i;
1950
1951 div = clk / b16;
1952 if (div == 0)
1953 continue;
1954
1955 res = clk / div;
1956 diff = (res > b16) ? (res-b16) : (b16-res);
1957
1958 if (diff < smallest_diff) {
1959 best_prescaler = i;
1960 smallest_diff = diff;
1961 }
1962 }
1963
1964 if (best_prescaler == 0)
1965 return KEYSPAN_INVALID_BAUD_RATE;
1966
1967 clk = (baudclk * 8) / (u32) best_prescaler;
1968 div = clk / b16;
1969
1970 /* return the divisor and prescaler if non-null */
1971 if (rate_low)
1972 *rate_low = (u8) (div & 0xff);
1973 if (rate_hi)
1974 *rate_hi = (u8) ((div >> 8) & 0xff);
1975 if (prescaler) {
1976 *prescaler = best_prescaler;
1977 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */
1978 }
1979 return KEYSPAN_BAUD_RATE_OK;
1980 }
1981
1982 /* USA-28 supports different maximum baud rates on each port */
1983 static int keyspan_usa28_calc_baud(struct usb_serial_port *port,
1984 u32 baud_rate, u32 baudclk, u8 *rate_hi,
1985 u8 *rate_low, u8 *prescaler, int portnum)
1986 {
1987 u32 b16, /* baud rate times 16 (actual rate used internally) */
1988 div, /* divisor */
1989 cnt; /* inverse of divisor (programmed into 8051) */
1990
1991 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate);
1992
1993 /* prevent divide by zero */
1994 b16 = baud_rate * 16L;
1995 if (b16 == 0)
1996 return KEYSPAN_INVALID_BAUD_RATE;
1997
1998 /* calculate the divisor and the counter (its inverse) */
1999 div = KEYSPAN_USA28_BAUDCLK / b16;
2000 if (div == 0)
2001 return KEYSPAN_INVALID_BAUD_RATE;
2002 else
2003 cnt = 0 - div;
2004
2005 /* check for out of range, based on portnum,
2006 and return result */
2007 if (portnum == 0) {
2008 if (div > 0xffff)
2009 return KEYSPAN_INVALID_BAUD_RATE;
2010 } else {
2011 if (portnum == 1) {
2012 if (div > 0xff)
2013 return KEYSPAN_INVALID_BAUD_RATE;
2014 } else
2015 return KEYSPAN_INVALID_BAUD_RATE;
2016 }
2017
2018 /* return the counter values if not NULL
2019 (port 1 will ignore retHi) */
2020 if (rate_low)
2021 *rate_low = (u8) (cnt & 0xff);
2022 if (rate_hi)
2023 *rate_hi = (u8) ((cnt >> 8) & 0xff);
2024 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate);
2025 return KEYSPAN_BAUD_RATE_OK;
2026 }
2027
2028 static int keyspan_usa26_send_setup(struct usb_serial *serial,
2029 struct usb_serial_port *port,
2030 int reset_port)
2031 {
2032 struct keyspan_usa26_portControlMessage msg;
2033 struct keyspan_serial_private *s_priv;
2034 struct keyspan_port_private *p_priv;
2035 const struct keyspan_device_details *d_details;
2036 struct urb *this_urb;
2037 int device_port, err;
2038
2039 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port);
2040
2041 s_priv = usb_get_serial_data(serial);
2042 p_priv = usb_get_serial_port_data(port);
2043 d_details = s_priv->device_details;
2044 device_port = port->port_number;
2045
2046 this_urb = p_priv->outcont_urb;
2047
2048 /* Make sure we have an urb then send the message */
2049 if (this_urb == NULL) {
2050 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2051 return -1;
2052 }
2053
2054 dev_dbg(&port->dev, "%s - endpoint %x\n",
2055 __func__, usb_pipeendpoint(this_urb->pipe));
2056
2057 /* Save reset port val for resend.
2058 Don't overwrite resend for open/close condition. */
2059 if ((reset_port + 1) > p_priv->resend_cont)
2060 p_priv->resend_cont = reset_port + 1;
2061 if (this_urb->status == -EINPROGRESS) {
2062 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2063 mdelay(5);
2064 return -1;
2065 }
2066
2067 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage));
2068
2069 /* Only set baud rate if it's changed */
2070 if (p_priv->old_baud != p_priv->baud) {
2071 p_priv->old_baud = p_priv->baud;
2072 msg.setClocking = 0xff;
2073 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2074 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2075 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2076 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2077 __func__, p_priv->baud);
2078 msg.baudLo = 0;
2079 msg.baudHi = 125; /* Values for 9600 baud */
2080 msg.prescaler = 10;
2081 }
2082 msg.setPrescaler = 0xff;
2083 }
2084
2085 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2086 switch (p_priv->cflag & CSIZE) {
2087 case CS5:
2088 msg.lcr |= USA_DATABITS_5;
2089 break;
2090 case CS6:
2091 msg.lcr |= USA_DATABITS_6;
2092 break;
2093 case CS7:
2094 msg.lcr |= USA_DATABITS_7;
2095 break;
2096 case CS8:
2097 msg.lcr |= USA_DATABITS_8;
2098 break;
2099 }
2100 if (p_priv->cflag & PARENB) {
2101 /* note USA_PARITY_NONE == 0 */
2102 msg.lcr |= (p_priv->cflag & PARODD) ?
2103 USA_PARITY_ODD : USA_PARITY_EVEN;
2104 }
2105 msg.setLcr = 0xff;
2106
2107 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2108 msg.xonFlowControl = 0;
2109 msg.setFlowControl = 0xff;
2110 msg.forwardingLength = 16;
2111 msg.xonChar = 17;
2112 msg.xoffChar = 19;
2113
2114 /* Opening port */
2115 if (reset_port == 1) {
2116 msg._txOn = 1;
2117 msg._txOff = 0;
2118 msg.txFlush = 0;
2119 msg.txBreak = 0;
2120 msg.rxOn = 1;
2121 msg.rxOff = 0;
2122 msg.rxFlush = 1;
2123 msg.rxForward = 0;
2124 msg.returnStatus = 0;
2125 msg.resetDataToggle = 0xff;
2126 }
2127
2128 /* Closing port */
2129 else if (reset_port == 2) {
2130 msg._txOn = 0;
2131 msg._txOff = 1;
2132 msg.txFlush = 0;
2133 msg.txBreak = 0;
2134 msg.rxOn = 0;
2135 msg.rxOff = 1;
2136 msg.rxFlush = 1;
2137 msg.rxForward = 0;
2138 msg.returnStatus = 0;
2139 msg.resetDataToggle = 0;
2140 }
2141
2142 /* Sending intermediate configs */
2143 else {
2144 msg._txOn = (!p_priv->break_on);
2145 msg._txOff = 0;
2146 msg.txFlush = 0;
2147 msg.txBreak = (p_priv->break_on);
2148 msg.rxOn = 0;
2149 msg.rxOff = 0;
2150 msg.rxFlush = 0;
2151 msg.rxForward = 0;
2152 msg.returnStatus = 0;
2153 msg.resetDataToggle = 0x0;
2154 }
2155
2156 /* Do handshaking outputs */
2157 msg.setTxTriState_setRts = 0xff;
2158 msg.txTriState_rts = p_priv->rts_state;
2159
2160 msg.setHskoa_setDtr = 0xff;
2161 msg.hskoa_dtr = p_priv->dtr_state;
2162
2163 p_priv->resend_cont = 0;
2164 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2165
2166 /* send the data out the device on control endpoint */
2167 this_urb->transfer_buffer_length = sizeof(msg);
2168
2169 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2170 if (err != 0)
2171 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2172 return 0;
2173 }
2174
2175 static int keyspan_usa28_send_setup(struct usb_serial *serial,
2176 struct usb_serial_port *port,
2177 int reset_port)
2178 {
2179 struct keyspan_usa28_portControlMessage msg;
2180 struct keyspan_serial_private *s_priv;
2181 struct keyspan_port_private *p_priv;
2182 const struct keyspan_device_details *d_details;
2183 struct urb *this_urb;
2184 int device_port, err;
2185
2186 s_priv = usb_get_serial_data(serial);
2187 p_priv = usb_get_serial_port_data(port);
2188 d_details = s_priv->device_details;
2189 device_port = port->port_number;
2190
2191 /* only do something if we have a bulk out endpoint */
2192 this_urb = p_priv->outcont_urb;
2193 if (this_urb == NULL) {
2194 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2195 return -1;
2196 }
2197
2198 /* Save reset port val for resend.
2199 Don't overwrite resend for open/close condition. */
2200 if ((reset_port + 1) > p_priv->resend_cont)
2201 p_priv->resend_cont = reset_port + 1;
2202 if (this_urb->status == -EINPROGRESS) {
2203 dev_dbg(&port->dev, "%s already writing\n", __func__);
2204 mdelay(5);
2205 return -1;
2206 }
2207
2208 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage));
2209
2210 msg.setBaudRate = 1;
2211 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2212 &msg.baudHi, &msg.baudLo, NULL,
2213 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2214 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n",
2215 __func__, p_priv->baud);
2216 msg.baudLo = 0xff;
2217 msg.baudHi = 0xb2; /* Values for 9600 baud */
2218 }
2219
2220 /* If parity is enabled, we must calculate it ourselves. */
2221 msg.parity = 0; /* XXX for now */
2222
2223 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2224 msg.xonFlowControl = 0;
2225
2226 /* Do handshaking outputs, DTR is inverted relative to RTS */
2227 msg.rts = p_priv->rts_state;
2228 msg.dtr = p_priv->dtr_state;
2229
2230 msg.forwardingLength = 16;
2231 msg.forwardMs = 10;
2232 msg.breakThreshold = 45;
2233 msg.xonChar = 17;
2234 msg.xoffChar = 19;
2235
2236 /*msg.returnStatus = 1;
2237 msg.resetDataToggle = 0xff;*/
2238 /* Opening port */
2239 if (reset_port == 1) {
2240 msg._txOn = 1;
2241 msg._txOff = 0;
2242 msg.txFlush = 0;
2243 msg.txForceXoff = 0;
2244 msg.txBreak = 0;
2245 msg.rxOn = 1;
2246 msg.rxOff = 0;
2247 msg.rxFlush = 1;
2248 msg.rxForward = 0;
2249 msg.returnStatus = 0;
2250 msg.resetDataToggle = 0xff;
2251 }
2252 /* Closing port */
2253 else if (reset_port == 2) {
2254 msg._txOn = 0;
2255 msg._txOff = 1;
2256 msg.txFlush = 0;
2257 msg.txForceXoff = 0;
2258 msg.txBreak = 0;
2259 msg.rxOn = 0;
2260 msg.rxOff = 1;
2261 msg.rxFlush = 1;
2262 msg.rxForward = 0;
2263 msg.returnStatus = 0;
2264 msg.resetDataToggle = 0;
2265 }
2266 /* Sending intermediate configs */
2267 else {
2268 msg._txOn = (!p_priv->break_on);
2269 msg._txOff = 0;
2270 msg.txFlush = 0;
2271 msg.txForceXoff = 0;
2272 msg.txBreak = (p_priv->break_on);
2273 msg.rxOn = 0;
2274 msg.rxOff = 0;
2275 msg.rxFlush = 0;
2276 msg.rxForward = 0;
2277 msg.returnStatus = 0;
2278 msg.resetDataToggle = 0x0;
2279 }
2280
2281 p_priv->resend_cont = 0;
2282 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2283
2284 /* send the data out the device on control endpoint */
2285 this_urb->transfer_buffer_length = sizeof(msg);
2286
2287 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2288 if (err != 0)
2289 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__);
2290
2291 return 0;
2292 }
2293
2294 static int keyspan_usa49_send_setup(struct usb_serial *serial,
2295 struct usb_serial_port *port,
2296 int reset_port)
2297 {
2298 struct keyspan_usa49_portControlMessage msg;
2299 struct usb_ctrlrequest *dr = NULL;
2300 struct keyspan_serial_private *s_priv;
2301 struct keyspan_port_private *p_priv;
2302 const struct keyspan_device_details *d_details;
2303 struct urb *this_urb;
2304 int err, device_port;
2305
2306 s_priv = usb_get_serial_data(serial);
2307 p_priv = usb_get_serial_port_data(port);
2308 d_details = s_priv->device_details;
2309
2310 this_urb = s_priv->glocont_urb;
2311
2312 /* Work out which port within the device is being setup */
2313 device_port = port->port_number;
2314
2315 /* Make sure we have an urb then send the message */
2316 if (this_urb == NULL) {
2317 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2318 return -1;
2319 }
2320
2321 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n",
2322 __func__, usb_pipeendpoint(this_urb->pipe), device_port);
2323
2324 /* Save reset port val for resend.
2325 Don't overwrite resend for open/close condition. */
2326 if ((reset_port + 1) > p_priv->resend_cont)
2327 p_priv->resend_cont = reset_port + 1;
2328
2329 if (this_urb->status == -EINPROGRESS) {
2330 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2331 mdelay(5);
2332 return -1;
2333 }
2334
2335 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage));
2336
2337 msg.portNumber = device_port;
2338
2339 /* Only set baud rate if it's changed */
2340 if (p_priv->old_baud != p_priv->baud) {
2341 p_priv->old_baud = p_priv->baud;
2342 msg.setClocking = 0xff;
2343 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2344 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2345 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2346 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2347 __func__, p_priv->baud);
2348 msg.baudLo = 0;
2349 msg.baudHi = 125; /* Values for 9600 baud */
2350 msg.prescaler = 10;
2351 }
2352 /* msg.setPrescaler = 0xff; */
2353 }
2354
2355 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2356 switch (p_priv->cflag & CSIZE) {
2357 case CS5:
2358 msg.lcr |= USA_DATABITS_5;
2359 break;
2360 case CS6:
2361 msg.lcr |= USA_DATABITS_6;
2362 break;
2363 case CS7:
2364 msg.lcr |= USA_DATABITS_7;
2365 break;
2366 case CS8:
2367 msg.lcr |= USA_DATABITS_8;
2368 break;
2369 }
2370 if (p_priv->cflag & PARENB) {
2371 /* note USA_PARITY_NONE == 0 */
2372 msg.lcr |= (p_priv->cflag & PARODD) ?
2373 USA_PARITY_ODD : USA_PARITY_EVEN;
2374 }
2375 msg.setLcr = 0xff;
2376
2377 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2378 msg.xonFlowControl = 0;
2379 msg.setFlowControl = 0xff;
2380
2381 msg.forwardingLength = 16;
2382 msg.xonChar = 17;
2383 msg.xoffChar = 19;
2384
2385 /* Opening port */
2386 if (reset_port == 1) {
2387 msg._txOn = 1;
2388 msg._txOff = 0;
2389 msg.txFlush = 0;
2390 msg.txBreak = 0;
2391 msg.rxOn = 1;
2392 msg.rxOff = 0;
2393 msg.rxFlush = 1;
2394 msg.rxForward = 0;
2395 msg.returnStatus = 0;
2396 msg.resetDataToggle = 0xff;
2397 msg.enablePort = 1;
2398 msg.disablePort = 0;
2399 }
2400 /* Closing port */
2401 else if (reset_port == 2) {
2402 msg._txOn = 0;
2403 msg._txOff = 1;
2404 msg.txFlush = 0;
2405 msg.txBreak = 0;
2406 msg.rxOn = 0;
2407 msg.rxOff = 1;
2408 msg.rxFlush = 1;
2409 msg.rxForward = 0;
2410 msg.returnStatus = 0;
2411 msg.resetDataToggle = 0;
2412 msg.enablePort = 0;
2413 msg.disablePort = 1;
2414 }
2415 /* Sending intermediate configs */
2416 else {
2417 msg._txOn = (!p_priv->break_on);
2418 msg._txOff = 0;
2419 msg.txFlush = 0;
2420 msg.txBreak = (p_priv->break_on);
2421 msg.rxOn = 0;
2422 msg.rxOff = 0;
2423 msg.rxFlush = 0;
2424 msg.rxForward = 0;
2425 msg.returnStatus = 0;
2426 msg.resetDataToggle = 0x0;
2427 msg.enablePort = 0;
2428 msg.disablePort = 0;
2429 }
2430
2431 /* Do handshaking outputs */
2432 msg.setRts = 0xff;
2433 msg.rts = p_priv->rts_state;
2434
2435 msg.setDtr = 0xff;
2436 msg.dtr = p_priv->dtr_state;
2437
2438 p_priv->resend_cont = 0;
2439
2440 /* if the device is a 49wg, we send control message on usb
2441 control EP 0 */
2442
2443 if (d_details->product_id == keyspan_usa49wg_product_id) {
2444 dr = (void *)(s_priv->ctrl_buf);
2445 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT;
2446 dr->bRequest = 0xB0; /* 49wg control message */
2447 dr->wValue = 0;
2448 dr->wIndex = 0;
2449 dr->wLength = cpu_to_le16(sizeof(msg));
2450
2451 memcpy(s_priv->glocont_buf, &msg, sizeof(msg));
2452
2453 usb_fill_control_urb(this_urb, serial->dev,
2454 usb_sndctrlpipe(serial->dev, 0),
2455 (unsigned char *)dr, s_priv->glocont_buf,
2456 sizeof(msg), usa49_glocont_callback, serial);
2457
2458 } else {
2459 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2460
2461 /* send the data out the device on control endpoint */
2462 this_urb->transfer_buffer_length = sizeof(msg);
2463 }
2464 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2465 if (err != 0)
2466 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2467
2468 return 0;
2469 }
2470
2471 static int keyspan_usa90_send_setup(struct usb_serial *serial,
2472 struct usb_serial_port *port,
2473 int reset_port)
2474 {
2475 struct keyspan_usa90_portControlMessage msg;
2476 struct keyspan_serial_private *s_priv;
2477 struct keyspan_port_private *p_priv;
2478 const struct keyspan_device_details *d_details;
2479 struct urb *this_urb;
2480 int err;
2481 u8 prescaler;
2482
2483 s_priv = usb_get_serial_data(serial);
2484 p_priv = usb_get_serial_port_data(port);
2485 d_details = s_priv->device_details;
2486
2487 /* only do something if we have a bulk out endpoint */
2488 this_urb = p_priv->outcont_urb;
2489 if (this_urb == NULL) {
2490 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__);
2491 return -1;
2492 }
2493
2494 /* Save reset port val for resend.
2495 Don't overwrite resend for open/close condition. */
2496 if ((reset_port + 1) > p_priv->resend_cont)
2497 p_priv->resend_cont = reset_port + 1;
2498 if (this_urb->status == -EINPROGRESS) {
2499 dev_dbg(&port->dev, "%s already writing\n", __func__);
2500 mdelay(5);
2501 return -1;
2502 }
2503
2504 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage));
2505
2506 /* Only set baud rate if it's changed */
2507 if (p_priv->old_baud != p_priv->baud) {
2508 p_priv->old_baud = p_priv->baud;
2509 msg.setClocking = 0x01;
2510 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2511 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) {
2512 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2513 __func__, p_priv->baud);
2514 p_priv->baud = 9600;
2515 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2516 &msg.baudHi, &msg.baudLo, &prescaler, 0);
2517 }
2518 msg.setRxMode = 1;
2519 msg.setTxMode = 1;
2520 }
2521
2522 /* modes must always be correctly specified */
2523 if (p_priv->baud > 57600) {
2524 msg.rxMode = RXMODE_DMA;
2525 msg.txMode = TXMODE_DMA;
2526 } else {
2527 msg.rxMode = RXMODE_BYHAND;
2528 msg.txMode = TXMODE_BYHAND;
2529 }
2530
2531 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2532 switch (p_priv->cflag & CSIZE) {
2533 case CS5:
2534 msg.lcr |= USA_DATABITS_5;
2535 break;
2536 case CS6:
2537 msg.lcr |= USA_DATABITS_6;
2538 break;
2539 case CS7:
2540 msg.lcr |= USA_DATABITS_7;
2541 break;
2542 case CS8:
2543 msg.lcr |= USA_DATABITS_8;
2544 break;
2545 }
2546 if (p_priv->cflag & PARENB) {
2547 /* note USA_PARITY_NONE == 0 */
2548 msg.lcr |= (p_priv->cflag & PARODD) ?
2549 USA_PARITY_ODD : USA_PARITY_EVEN;
2550 }
2551 if (p_priv->old_cflag != p_priv->cflag) {
2552 p_priv->old_cflag = p_priv->cflag;
2553 msg.setLcr = 0x01;
2554 }
2555
2556 if (p_priv->flow_control == flow_cts)
2557 msg.txFlowControl = TXFLOW_CTS;
2558 msg.setTxFlowControl = 0x01;
2559 msg.setRxFlowControl = 0x01;
2560
2561 msg.rxForwardingLength = 16;
2562 msg.rxForwardingTimeout = 16;
2563 msg.txAckSetting = 0;
2564 msg.xonChar = 17;
2565 msg.xoffChar = 19;
2566
2567 /* Opening port */
2568 if (reset_port == 1) {
2569 msg.portEnabled = 1;
2570 msg.rxFlush = 1;
2571 msg.txBreak = (p_priv->break_on);
2572 }
2573 /* Closing port */
2574 else if (reset_port == 2)
2575 msg.portEnabled = 0;
2576 /* Sending intermediate configs */
2577 else {
2578 msg.portEnabled = 1;
2579 msg.txBreak = (p_priv->break_on);
2580 }
2581
2582 /* Do handshaking outputs */
2583 msg.setRts = 0x01;
2584 msg.rts = p_priv->rts_state;
2585
2586 msg.setDtr = 0x01;
2587 msg.dtr = p_priv->dtr_state;
2588
2589 p_priv->resend_cont = 0;
2590 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2591
2592 /* send the data out the device on control endpoint */
2593 this_urb->transfer_buffer_length = sizeof(msg);
2594
2595 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2596 if (err != 0)
2597 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2598 return 0;
2599 }
2600
2601 static int keyspan_usa67_send_setup(struct usb_serial *serial,
2602 struct usb_serial_port *port,
2603 int reset_port)
2604 {
2605 struct keyspan_usa67_portControlMessage msg;
2606 struct keyspan_serial_private *s_priv;
2607 struct keyspan_port_private *p_priv;
2608 const struct keyspan_device_details *d_details;
2609 struct urb *this_urb;
2610 int err, device_port;
2611
2612 s_priv = usb_get_serial_data(serial);
2613 p_priv = usb_get_serial_port_data(port);
2614 d_details = s_priv->device_details;
2615
2616 this_urb = s_priv->glocont_urb;
2617
2618 /* Work out which port within the device is being setup */
2619 device_port = port->port_number;
2620
2621 /* Make sure we have an urb then send the message */
2622 if (this_urb == NULL) {
2623 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__);
2624 return -1;
2625 }
2626
2627 /* Save reset port val for resend.
2628 Don't overwrite resend for open/close condition. */
2629 if ((reset_port + 1) > p_priv->resend_cont)
2630 p_priv->resend_cont = reset_port + 1;
2631 if (this_urb->status == -EINPROGRESS) {
2632 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */
2633 mdelay(5);
2634 return -1;
2635 }
2636
2637 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage));
2638
2639 msg.port = device_port;
2640
2641 /* Only set baud rate if it's changed */
2642 if (p_priv->old_baud != p_priv->baud) {
2643 p_priv->old_baud = p_priv->baud;
2644 msg.setClocking = 0xff;
2645 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk,
2646 &msg.baudHi, &msg.baudLo, &msg.prescaler,
2647 device_port) == KEYSPAN_INVALID_BAUD_RATE) {
2648 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n",
2649 __func__, p_priv->baud);
2650 msg.baudLo = 0;
2651 msg.baudHi = 125; /* Values for 9600 baud */
2652 msg.prescaler = 10;
2653 }
2654 msg.setPrescaler = 0xff;
2655 }
2656
2657 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1;
2658 switch (p_priv->cflag & CSIZE) {
2659 case CS5:
2660 msg.lcr |= USA_DATABITS_5;
2661 break;
2662 case CS6:
2663 msg.lcr |= USA_DATABITS_6;
2664 break;
2665 case CS7:
2666 msg.lcr |= USA_DATABITS_7;
2667 break;
2668 case CS8:
2669 msg.lcr |= USA_DATABITS_8;
2670 break;
2671 }
2672 if (p_priv->cflag & PARENB) {
2673 /* note USA_PARITY_NONE == 0 */
2674 msg.lcr |= (p_priv->cflag & PARODD) ?
2675 USA_PARITY_ODD : USA_PARITY_EVEN;
2676 }
2677 msg.setLcr = 0xff;
2678
2679 msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
2680 msg.xonFlowControl = 0;
2681 msg.setFlowControl = 0xff;
2682 msg.forwardingLength = 16;
2683 msg.xonChar = 17;
2684 msg.xoffChar = 19;
2685
2686 if (reset_port == 1) {
2687 /* Opening port */
2688 msg._txOn = 1;
2689 msg._txOff = 0;
2690 msg.txFlush = 0;
2691 msg.txBreak = 0;
2692 msg.rxOn = 1;
2693 msg.rxOff = 0;
2694 msg.rxFlush = 1;
2695 msg.rxForward = 0;
2696 msg.returnStatus = 0;
2697 msg.resetDataToggle = 0xff;
2698 } else if (reset_port == 2) {
2699 /* Closing port */
2700 msg._txOn = 0;
2701 msg._txOff = 1;
2702 msg.txFlush = 0;
2703 msg.txBreak = 0;
2704 msg.rxOn = 0;
2705 msg.rxOff = 1;
2706 msg.rxFlush = 1;
2707 msg.rxForward = 0;
2708 msg.returnStatus = 0;
2709 msg.resetDataToggle = 0;
2710 } else {
2711 /* Sending intermediate configs */
2712 msg._txOn = (!p_priv->break_on);
2713 msg._txOff = 0;
2714 msg.txFlush = 0;
2715 msg.txBreak = (p_priv->break_on);
2716 msg.rxOn = 0;
2717 msg.rxOff = 0;
2718 msg.rxFlush = 0;
2719 msg.rxForward = 0;
2720 msg.returnStatus = 0;
2721 msg.resetDataToggle = 0x0;
2722 }
2723
2724 /* Do handshaking outputs */
2725 msg.setTxTriState_setRts = 0xff;
2726 msg.txTriState_rts = p_priv->rts_state;
2727
2728 msg.setHskoa_setDtr = 0xff;
2729 msg.hskoa_dtr = p_priv->dtr_state;
2730
2731 p_priv->resend_cont = 0;
2732
2733 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg));
2734
2735 /* send the data out the device on control endpoint */
2736 this_urb->transfer_buffer_length = sizeof(msg);
2737
2738 err = usb_submit_urb(this_urb, GFP_ATOMIC);
2739 if (err != 0)
2740 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err);
2741 return 0;
2742 }
2743
2744 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
2745 {
2746 struct usb_serial *serial = port->serial;
2747 struct keyspan_serial_private *s_priv;
2748 const struct keyspan_device_details *d_details;
2749
2750 s_priv = usb_get_serial_data(serial);
2751 d_details = s_priv->device_details;
2752
2753 switch (d_details->msg_format) {
2754 case msg_usa26:
2755 keyspan_usa26_send_setup(serial, port, reset_port);
2756 break;
2757 case msg_usa28:
2758 keyspan_usa28_send_setup(serial, port, reset_port);
2759 break;
2760 case msg_usa49:
2761 keyspan_usa49_send_setup(serial, port, reset_port);
2762 break;
2763 case msg_usa90:
2764 keyspan_usa90_send_setup(serial, port, reset_port);
2765 break;
2766 case msg_usa67:
2767 keyspan_usa67_send_setup(serial, port, reset_port);
2768 break;
2769 }
2770 }
2771
2772
2773 /* Gets called by the "real" driver (ie once firmware is loaded
2774 and renumeration has taken place. */
2775 static int keyspan_startup(struct usb_serial *serial)
2776 {
2777 int i, err;
2778 struct keyspan_serial_private *s_priv;
2779 const struct keyspan_device_details *d_details;
2780
2781 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
2782 if (d_details->product_id ==
2783 le16_to_cpu(serial->dev->descriptor.idProduct))
2784 break;
2785 if (d_details == NULL) {
2786 dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
2787 __func__, le16_to_cpu(serial->dev->descriptor.idProduct));
2788 return -ENODEV;
2789 }
2790
2791 /* Setup private data for serial driver */
2792 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
2793 if (!s_priv)
2794 return -ENOMEM;
2795
2796 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL);
2797 if (!s_priv->instat_buf)
2798 goto err_instat_buf;
2799
2800 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL);
2801 if (!s_priv->indat_buf)
2802 goto err_indat_buf;
2803
2804 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL);
2805 if (!s_priv->glocont_buf)
2806 goto err_glocont_buf;
2807
2808 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
2809 if (!s_priv->ctrl_buf)
2810 goto err_ctrl_buf;
2811
2812 s_priv->device_details = d_details;
2813 usb_set_serial_data(serial, s_priv);
2814
2815 keyspan_setup_urbs(serial);
2816
2817 if (s_priv->instat_urb != NULL) {
2818 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
2819 if (err != 0)
2820 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err);
2821 }
2822 if (s_priv->indat_urb != NULL) {
2823 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
2824 if (err != 0)
2825 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err);
2826 }
2827
2828 return 0;
2829
2830 err_ctrl_buf:
2831 kfree(s_priv->glocont_buf);
2832 err_glocont_buf:
2833 kfree(s_priv->indat_buf);
2834 err_indat_buf:
2835 kfree(s_priv->instat_buf);
2836 err_instat_buf:
2837 kfree(s_priv);
2838
2839 return -ENOMEM;
2840 }
2841
2842 static void keyspan_disconnect(struct usb_serial *serial)
2843 {
2844 struct keyspan_serial_private *s_priv;
2845
2846 s_priv = usb_get_serial_data(serial);
2847
2848 usb_kill_urb(s_priv->instat_urb);
2849 usb_kill_urb(s_priv->glocont_urb);
2850 usb_kill_urb(s_priv->indat_urb);
2851 }
2852
2853 static void keyspan_release(struct usb_serial *serial)
2854 {
2855 struct keyspan_serial_private *s_priv;
2856
2857 s_priv = usb_get_serial_data(serial);
2858
2859 /* Make sure to unlink the URBs submitted in attach. */
2860 usb_kill_urb(s_priv->instat_urb);
2861 usb_kill_urb(s_priv->indat_urb);
2862
2863 usb_free_urb(s_priv->instat_urb);
2864 usb_free_urb(s_priv->indat_urb);
2865 usb_free_urb(s_priv->glocont_urb);
2866
2867 kfree(s_priv->ctrl_buf);
2868 kfree(s_priv->glocont_buf);
2869 kfree(s_priv->indat_buf);
2870 kfree(s_priv->instat_buf);
2871
2872 kfree(s_priv);
2873 }
2874
2875 static int keyspan_port_probe(struct usb_serial_port *port)
2876 {
2877 struct usb_serial *serial = port->serial;
2878 struct keyspan_serial_private *s_priv;
2879 struct keyspan_port_private *p_priv;
2880 const struct keyspan_device_details *d_details;
2881 struct callbacks *cback;
2882 int endp;
2883 int port_num;
2884 int i;
2885
2886 s_priv = usb_get_serial_data(serial);
2887 d_details = s_priv->device_details;
2888
2889 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL);
2890 if (!p_priv)
2891 return -ENOMEM;
2892
2893 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
2894 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
2895 if (!p_priv->in_buffer[i])
2896 goto err_free_in_buffer;
2897 }
2898
2899 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
2900 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
2901 if (!p_priv->out_buffer[i])
2902 goto err_free_out_buffer;
2903 }
2904
2905 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
2906 if (!p_priv->inack_buffer)
2907 goto err_free_out_buffer;
2908
2909 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
2910 if (!p_priv->outcont_buffer)
2911 goto err_free_inack_buffer;
2912
2913 p_priv->device_details = d_details;
2914
2915 /* Setup values for the various callback routines */
2916 cback = &keyspan_callbacks[d_details->msg_format];
2917
2918 port_num = port->port_number;
2919
2920 /* Do indat endpoints first, once for each flip */
2921 endp = d_details->indat_endpoints[port_num];
2922 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) {
2923 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp,
2924 USB_DIR_IN, port,
2925 p_priv->in_buffer[i],
2926 IN_BUFLEN,
2927 cback->indat_callback);
2928 }
2929 /* outdat endpoints also have flip */
2930 endp = d_details->outdat_endpoints[port_num];
2931 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) {
2932 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp,
2933 USB_DIR_OUT, port,
2934 p_priv->out_buffer[i],
2935 OUT_BUFLEN,
2936 cback->outdat_callback);
2937 }
2938 /* inack endpoint */
2939 p_priv->inack_urb = keyspan_setup_urb(serial,
2940 d_details->inack_endpoints[port_num],
2941 USB_DIR_IN, port,
2942 p_priv->inack_buffer,
2943 INACK_BUFLEN,
2944 cback->inack_callback);
2945 /* outcont endpoint */
2946 p_priv->outcont_urb = keyspan_setup_urb(serial,
2947 d_details->outcont_endpoints[port_num],
2948 USB_DIR_OUT, port,
2949 p_priv->outcont_buffer,
2950 OUTCONT_BUFLEN,
2951 cback->outcont_callback);
2952
2953 usb_set_serial_port_data(port, p_priv);
2954
2955 return 0;
2956
2957 err_free_inack_buffer:
2958 kfree(p_priv->inack_buffer);
2959 err_free_out_buffer:
2960 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2961 kfree(p_priv->out_buffer[i]);
2962 err_free_in_buffer:
2963 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2964 kfree(p_priv->in_buffer[i]);
2965 kfree(p_priv);
2966
2967 return -ENOMEM;
2968 }
2969
2970 static void keyspan_port_remove(struct usb_serial_port *port)
2971 {
2972 struct keyspan_port_private *p_priv;
2973 int i;
2974
2975 p_priv = usb_get_serial_port_data(port);
2976
2977 usb_kill_urb(p_priv->inack_urb);
2978 usb_kill_urb(p_priv->outcont_urb);
2979 for (i = 0; i < 2; i++) {
2980 usb_kill_urb(p_priv->in_urbs[i]);
2981 usb_kill_urb(p_priv->out_urbs[i]);
2982 }
2983
2984 usb_free_urb(p_priv->inack_urb);
2985 usb_free_urb(p_priv->outcont_urb);
2986 for (i = 0; i < 2; i++) {
2987 usb_free_urb(p_priv->in_urbs[i]);
2988 usb_free_urb(p_priv->out_urbs[i]);
2989 }
2990
2991 kfree(p_priv->outcont_buffer);
2992 kfree(p_priv->inack_buffer);
2993 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
2994 kfree(p_priv->out_buffer[i]);
2995 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
2996 kfree(p_priv->in_buffer[i]);
2997
2998 kfree(p_priv);
2999 }
3000
3001 /* Structs for the devices, pre and post renumeration. */
3002 static struct usb_serial_driver keyspan_pre_device = {
3003 .driver = {
3004 .name = "keyspan_no_firm",
3005 },
3006 .description = "Keyspan - (without firmware)",
3007 .id_table = keyspan_pre_ids,
3008 .num_ports = 1,
3009 .attach = keyspan_fake_startup,
3010 };
3011
3012 static struct usb_serial_driver keyspan_1port_device = {
3013 .driver = {
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 .name = "keyspan_2",
3038 },
3039 .description = "Keyspan 2 port adapter",
3040 .id_table = keyspan_2port_ids,
3041 .num_ports = 2,
3042 .open = keyspan_open,
3043 .close = keyspan_close,
3044 .dtr_rts = keyspan_dtr_rts,
3045 .write = keyspan_write,
3046 .write_room = keyspan_write_room,
3047 .set_termios = keyspan_set_termios,
3048 .break_ctl = keyspan_break_ctl,
3049 .tiocmget = keyspan_tiocmget,
3050 .tiocmset = keyspan_tiocmset,
3051 .attach = keyspan_startup,
3052 .disconnect = keyspan_disconnect,
3053 .release = keyspan_release,
3054 .port_probe = keyspan_port_probe,
3055 .port_remove = keyspan_port_remove,
3056 };
3057
3058 static struct usb_serial_driver keyspan_4port_device = {
3059 .driver = {
3060 .name = "keyspan_4",
3061 },
3062 .description = "Keyspan 4 port adapter",
3063 .id_table = keyspan_4port_ids,
3064 .num_ports = 4,
3065 .open = keyspan_open,
3066 .close = keyspan_close,
3067 .dtr_rts = keyspan_dtr_rts,
3068 .write = keyspan_write,
3069 .write_room = keyspan_write_room,
3070 .set_termios = keyspan_set_termios,
3071 .break_ctl = keyspan_break_ctl,
3072 .tiocmget = keyspan_tiocmget,
3073 .tiocmset = keyspan_tiocmset,
3074 .attach = keyspan_startup,
3075 .disconnect = keyspan_disconnect,
3076 .release = keyspan_release,
3077 .port_probe = keyspan_port_probe,
3078 .port_remove = keyspan_port_remove,
3079 };
3080
3081 static struct usb_serial_driver * const serial_drivers[] = {
3082 &keyspan_pre_device, &keyspan_1port_device,
3083 &keyspan_2port_device, &keyspan_4port_device, NULL
3084 };
3085
3086 module_usb_serial_driver(serial_drivers, keyspan_ids_combined);
3087
3088 MODULE_AUTHOR(DRIVER_AUTHOR);
3089 MODULE_DESCRIPTION(DRIVER_DESC);
3090 MODULE_LICENSE("GPL");
3091
3092 MODULE_FIRMWARE("keyspan/usa28.fw");
3093 MODULE_FIRMWARE("keyspan/usa28x.fw");
3094 MODULE_FIRMWARE("keyspan/usa28xa.fw");
3095 MODULE_FIRMWARE("keyspan/usa28xb.fw");
3096 MODULE_FIRMWARE("keyspan/usa19.fw");
3097 MODULE_FIRMWARE("keyspan/usa19qi.fw");
3098 MODULE_FIRMWARE("keyspan/mpr.fw");
3099 MODULE_FIRMWARE("keyspan/usa19qw.fw");
3100 MODULE_FIRMWARE("keyspan/usa18x.fw");
3101 MODULE_FIRMWARE("keyspan/usa19w.fw");
3102 MODULE_FIRMWARE("keyspan/usa49w.fw");
3103 MODULE_FIRMWARE("keyspan/usa49wlc.fw");
Kernel DRM miscellaneous fixes and cross-tree changes