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Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / usb / gadget / rndis.c
blob6d6eaad73968caa6af45521858b4b1287231041e
1 /*
2 * RNDIS MSG parser
3 *
4 * Version: $Id: rndis.c,v 1.19 2004/03/25 21:33:46 robert Exp $
5 *
6 * Authors: Benedikt Spranger, Pengutronix
7 * Robert Schwebel, Pengutronix
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2, as published by the Free Software Foundation.
12 *
13 * This software was originally developed in conformance with
14 * Microsoft's Remote NDIS Specification License Agreement.
15 *
16 * 03/12/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
17 * Fixed message length bug in init_response
18 *
19 * 03/25/2004 Kai-Uwe Bloem <linux-development@auerswald.de>
20 * Fixed rndis_rm_hdr length bug.
21 *
22 * Copyright (C) 2004 by David Brownell
23 * updates to merge with Linux 2.6, better match RNDIS spec
24 */
25
26 #include <linux/config.h>
27 #include <linux/module.h>
28 #include <linux/moduleparam.h>
29 #include <linux/kernel.h>
30 #include <linux/errno.h>
31 #include <linux/init.h>
32 #include <linux/list.h>
33 #include <linux/proc_fs.h>
34 #include <linux/netdevice.h>
35
36 #include <asm/io.h>
37 #include <asm/byteorder.h>
38 #include <asm/system.h>
39 #include <asm/unaligned.h>
40
41
42 #undef RNDIS_PM
43 #undef RNDIS_WAKEUP
44 #undef VERBOSE
45
46 #include "rndis.h"
47
48
49 /* The driver for your USB chip needs to support ep0 OUT to work with
50 * RNDIS, plus all three CDC Ethernet endpoints (interrupt not optional).
51 *
52 * Windows hosts need an INF file like Documentation/usb/linux.inf
53 * and will be happier if you provide the host_addr module parameter.
54 */
55
56 #if 0
57 #define DEBUG(str,args...) do { \
58 if (rndis_debug) \
59 printk(KERN_DEBUG str , ## args ); \
60 } while (0)
61 static int rndis_debug = 0;
62
63 module_param (rndis_debug, int, 0);
64 MODULE_PARM_DESC (rndis_debug, "enable debugging");
65
66 #else
67
68 #define rndis_debug 0
69 #define DEBUG(str,args...) do{}while(0)
70 #endif
71
72 #define RNDIS_MAX_CONFIGS 1
73
74
75 static rndis_params rndis_per_dev_params [RNDIS_MAX_CONFIGS];
76
77 /* Driver Version */
78 static const __le32 rndis_driver_version = __constant_cpu_to_le32 (1);
79
80 /* Function Prototypes */
81 static rndis_resp_t *rndis_add_response (int configNr, u32 length);
82
83
84 /* supported OIDs */
85 static const u32 oid_supported_list [] =
86 {
87 /* the general stuff */
88 OID_GEN_SUPPORTED_LIST,
89 OID_GEN_HARDWARE_STATUS,
90 OID_GEN_MEDIA_SUPPORTED,
91 OID_GEN_MEDIA_IN_USE,
92 OID_GEN_MAXIMUM_FRAME_SIZE,
93 OID_GEN_LINK_SPEED,
94 OID_GEN_TRANSMIT_BLOCK_SIZE,
95 OID_GEN_RECEIVE_BLOCK_SIZE,
96 OID_GEN_VENDOR_ID,
97 OID_GEN_VENDOR_DESCRIPTION,
98 OID_GEN_VENDOR_DRIVER_VERSION,
99 OID_GEN_CURRENT_PACKET_FILTER,
100 OID_GEN_MAXIMUM_TOTAL_SIZE,
101 OID_GEN_MEDIA_CONNECT_STATUS,
102 OID_GEN_PHYSICAL_MEDIUM,
103 #if 0
104 OID_GEN_RNDIS_CONFIG_PARAMETER,
105 #endif
106
107 /* the statistical stuff */
108 OID_GEN_XMIT_OK,
109 OID_GEN_RCV_OK,
110 OID_GEN_XMIT_ERROR,
111 OID_GEN_RCV_ERROR,
112 OID_GEN_RCV_NO_BUFFER,
113 #ifdef RNDIS_OPTIONAL_STATS
114 OID_GEN_DIRECTED_BYTES_XMIT,
115 OID_GEN_DIRECTED_FRAMES_XMIT,
116 OID_GEN_MULTICAST_BYTES_XMIT,
117 OID_GEN_MULTICAST_FRAMES_XMIT,
118 OID_GEN_BROADCAST_BYTES_XMIT,
119 OID_GEN_BROADCAST_FRAMES_XMIT,
120 OID_GEN_DIRECTED_BYTES_RCV,
121 OID_GEN_DIRECTED_FRAMES_RCV,
122 OID_GEN_MULTICAST_BYTES_RCV,
123 OID_GEN_MULTICAST_FRAMES_RCV,
124 OID_GEN_BROADCAST_BYTES_RCV,
125 OID_GEN_BROADCAST_FRAMES_RCV,
126 OID_GEN_RCV_CRC_ERROR,
127 OID_GEN_TRANSMIT_QUEUE_LENGTH,
128 #endif /* RNDIS_OPTIONAL_STATS */
129
130 /* mandatory 802.3 */
131 /* the general stuff */
132 OID_802_3_PERMANENT_ADDRESS,
133 OID_802_3_CURRENT_ADDRESS,
134 OID_802_3_MULTICAST_LIST,
135 OID_802_3_MAC_OPTIONS,
136 OID_802_3_MAXIMUM_LIST_SIZE,
137
138 /* the statistical stuff */
139 OID_802_3_RCV_ERROR_ALIGNMENT,
140 OID_802_3_XMIT_ONE_COLLISION,
141 OID_802_3_XMIT_MORE_COLLISIONS,
142 #ifdef RNDIS_OPTIONAL_STATS
143 OID_802_3_XMIT_DEFERRED,
144 OID_802_3_XMIT_MAX_COLLISIONS,
145 OID_802_3_RCV_OVERRUN,
146 OID_802_3_XMIT_UNDERRUN,
147 OID_802_3_XMIT_HEARTBEAT_FAILURE,
148 OID_802_3_XMIT_TIMES_CRS_LOST,
149 OID_802_3_XMIT_LATE_COLLISIONS,
150 #endif /* RNDIS_OPTIONAL_STATS */
151
152 #ifdef RNDIS_PM
153 /* PM and wakeup are mandatory for USB: */
154
155 /* power management */
156 OID_PNP_CAPABILITIES,
157 OID_PNP_QUERY_POWER,
158 OID_PNP_SET_POWER,
159
160 #ifdef RNDIS_WAKEUP
161 /* wake up host */
162 OID_PNP_ENABLE_WAKE_UP,
163 OID_PNP_ADD_WAKE_UP_PATTERN,
164 OID_PNP_REMOVE_WAKE_UP_PATTERN,
165 #endif /* RNDIS_WAKEUP */
166 #endif /* RNDIS_PM */
167 };
168
169
170 /* NDIS Functions */
171 static int
172 gen_ndis_query_resp (int configNr, u32 OID, u8 *buf, unsigned buf_len,
173 rndis_resp_t *r)
174 {
175 int retval = -ENOTSUPP;
176 u32 length = 4; /* usually */
177 __le32 *outbuf;
178 int i, count;
179 rndis_query_cmplt_type *resp;
180
181 if (!r) return -ENOMEM;
182 resp = (rndis_query_cmplt_type *) r->buf;
183
184 if (!resp) return -ENOMEM;
185
186 if (buf_len && rndis_debug > 1) {
187 DEBUG("query OID %08x value, len %d:\n", OID, buf_len);
188 for (i = 0; i < buf_len; i += 16) {
189 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
190 le32_to_cpup((__le32 *)&buf[i]),
191 le32_to_cpup((__le32 *)&buf[i + 4]),
192 le32_to_cpup((__le32 *)&buf[i + 8]),
193 le32_to_cpup((__le32 *)&buf[i + 12]));
194 }
195 }
196
197 /* response goes here, right after the header */
198 outbuf = (__le32 *) &resp[1];
199 resp->InformationBufferOffset = __constant_cpu_to_le32 (16);
200
201 switch (OID) {
202
203 /* general oids (table 4-1) */
204
205 /* mandatory */
206 case OID_GEN_SUPPORTED_LIST:
207 DEBUG ("%s: OID_GEN_SUPPORTED_LIST\n", __FUNCTION__);
208 length = sizeof (oid_supported_list);
209 count = length / sizeof (u32);
210 for (i = 0; i < count; i++)
211 outbuf[i] = cpu_to_le32 (oid_supported_list[i]);
212 retval = 0;
213 break;
214
215 /* mandatory */
216 case OID_GEN_HARDWARE_STATUS:
217 DEBUG("%s: OID_GEN_HARDWARE_STATUS\n", __FUNCTION__);
218 /* Bogus question!
219 * Hardware must be ready to receive high level protocols.
220 * BTW:
221 * reddite ergo quae sunt Caesaris Caesari
222 * et quae sunt Dei Deo!
223 */
224 *outbuf = __constant_cpu_to_le32 (0);
225 retval = 0;
226 break;
227
228 /* mandatory */
229 case OID_GEN_MEDIA_SUPPORTED:
230 DEBUG("%s: OID_GEN_MEDIA_SUPPORTED\n", __FUNCTION__);
231 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
232 retval = 0;
233 break;
234
235 /* mandatory */
236 case OID_GEN_MEDIA_IN_USE:
237 DEBUG("%s: OID_GEN_MEDIA_IN_USE\n", __FUNCTION__);
238 /* one medium, one transport... (maybe you do it better) */
239 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr].medium);
240 retval = 0;
241 break;
242
243 /* mandatory */
244 case OID_GEN_MAXIMUM_FRAME_SIZE:
245 DEBUG("%s: OID_GEN_MAXIMUM_FRAME_SIZE\n", __FUNCTION__);
246 if (rndis_per_dev_params [configNr].dev) {
247 *outbuf = cpu_to_le32 (
248 rndis_per_dev_params [configNr].dev->mtu);
249 retval = 0;
250 }
251 break;
252
253 /* mandatory */
254 case OID_GEN_LINK_SPEED:
255 if (rndis_debug > 1)
256 DEBUG("%s: OID_GEN_LINK_SPEED\n", __FUNCTION__);
257 if (rndis_per_dev_params [configNr].media_state
258 == NDIS_MEDIA_STATE_DISCONNECTED)
259 *outbuf = __constant_cpu_to_le32 (0);
260 else
261 *outbuf = cpu_to_le32 (
262 rndis_per_dev_params [configNr].speed);
263 retval = 0;
264 break;
265
266 /* mandatory */
267 case OID_GEN_TRANSMIT_BLOCK_SIZE:
268 DEBUG("%s: OID_GEN_TRANSMIT_BLOCK_SIZE\n", __FUNCTION__);
269 if (rndis_per_dev_params [configNr].dev) {
270 *outbuf = cpu_to_le32 (
271 rndis_per_dev_params [configNr].dev->mtu);
272 retval = 0;
273 }
274 break;
275
276 /* mandatory */
277 case OID_GEN_RECEIVE_BLOCK_SIZE:
278 DEBUG("%s: OID_GEN_RECEIVE_BLOCK_SIZE\n", __FUNCTION__);
279 if (rndis_per_dev_params [configNr].dev) {
280 *outbuf = cpu_to_le32 (
281 rndis_per_dev_params [configNr].dev->mtu);
282 retval = 0;
283 }
284 break;
285
286 /* mandatory */
287 case OID_GEN_VENDOR_ID:
288 DEBUG("%s: OID_GEN_VENDOR_ID\n", __FUNCTION__);
289 *outbuf = cpu_to_le32 (
290 rndis_per_dev_params [configNr].vendorID);
291 retval = 0;
292 break;
293
294 /* mandatory */
295 case OID_GEN_VENDOR_DESCRIPTION:
296 DEBUG("%s: OID_GEN_VENDOR_DESCRIPTION\n", __FUNCTION__);
297 length = strlen (rndis_per_dev_params [configNr].vendorDescr);
298 memcpy (outbuf,
299 rndis_per_dev_params [configNr].vendorDescr, length);
300 retval = 0;
301 break;
302
303 case OID_GEN_VENDOR_DRIVER_VERSION:
304 DEBUG("%s: OID_GEN_VENDOR_DRIVER_VERSION\n", __FUNCTION__);
305 /* Created as LE */
306 *outbuf = rndis_driver_version;
307 retval = 0;
308 break;
309
310 /* mandatory */
311 case OID_GEN_CURRENT_PACKET_FILTER:
312 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER\n", __FUNCTION__);
313 *outbuf = cpu_to_le32 (*rndis_per_dev_params[configNr].filter);
314 retval = 0;
315 break;
316
317 /* mandatory */
318 case OID_GEN_MAXIMUM_TOTAL_SIZE:
319 DEBUG("%s: OID_GEN_MAXIMUM_TOTAL_SIZE\n", __FUNCTION__);
320 *outbuf = __constant_cpu_to_le32(RNDIS_MAX_TOTAL_SIZE);
321 retval = 0;
322 break;
323
324 /* mandatory */
325 case OID_GEN_MEDIA_CONNECT_STATUS:
326 if (rndis_debug > 1)
327 DEBUG("%s: OID_GEN_MEDIA_CONNECT_STATUS\n", __FUNCTION__);
328 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
329 .media_state);
330 retval = 0;
331 break;
332
333 case OID_GEN_PHYSICAL_MEDIUM:
334 DEBUG("%s: OID_GEN_PHYSICAL_MEDIUM\n", __FUNCTION__);
335 *outbuf = __constant_cpu_to_le32 (0);
336 retval = 0;
337 break;
338
339 /* The RNDIS specification is incomplete/wrong. Some versions
340 * of MS-Windows expect OIDs that aren't specified there. Other
341 * versions emit undefined RNDIS messages. DOCUMENT ALL THESE!
342 */
343 case OID_GEN_MAC_OPTIONS: /* from WinME */
344 DEBUG("%s: OID_GEN_MAC_OPTIONS\n", __FUNCTION__);
345 *outbuf = __constant_cpu_to_le32(
346 NDIS_MAC_OPTION_RECEIVE_SERIALIZED
347 | NDIS_MAC_OPTION_FULL_DUPLEX);
348 retval = 0;
349 break;
350
351 /* statistics OIDs (table 4-2) */
352
353 /* mandatory */
354 case OID_GEN_XMIT_OK:
355 if (rndis_debug > 1)
356 DEBUG("%s: OID_GEN_XMIT_OK\n", __FUNCTION__);
357 if (rndis_per_dev_params [configNr].stats) {
358 *outbuf = cpu_to_le32 (
359 rndis_per_dev_params [configNr].stats->tx_packets -
360 rndis_per_dev_params [configNr].stats->tx_errors -
361 rndis_per_dev_params [configNr].stats->tx_dropped);
362 retval = 0;
363 }
364 break;
365
366 /* mandatory */
367 case OID_GEN_RCV_OK:
368 if (rndis_debug > 1)
369 DEBUG("%s: OID_GEN_RCV_OK\n", __FUNCTION__);
370 if (rndis_per_dev_params [configNr].stats) {
371 *outbuf = cpu_to_le32 (
372 rndis_per_dev_params [configNr].stats->rx_packets -
373 rndis_per_dev_params [configNr].stats->rx_errors -
374 rndis_per_dev_params [configNr].stats->rx_dropped);
375 retval = 0;
376 }
377 break;
378
379 /* mandatory */
380 case OID_GEN_XMIT_ERROR:
381 if (rndis_debug > 1)
382 DEBUG("%s: OID_GEN_XMIT_ERROR\n", __FUNCTION__);
383 if (rndis_per_dev_params [configNr].stats) {
384 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
385 .stats->tx_errors);
386 retval = 0;
387 }
388 break;
389
390 /* mandatory */
391 case OID_GEN_RCV_ERROR:
392 if (rndis_debug > 1)
393 DEBUG("%s: OID_GEN_RCV_ERROR\n", __FUNCTION__);
394 if (rndis_per_dev_params [configNr].stats) {
395 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
396 .stats->rx_errors);
397 retval = 0;
398 }
399 break;
400
401 /* mandatory */
402 case OID_GEN_RCV_NO_BUFFER:
403 DEBUG("%s: OID_GEN_RCV_NO_BUFFER\n", __FUNCTION__);
404 if (rndis_per_dev_params [configNr].stats) {
405 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
406 .stats->rx_dropped);
407 retval = 0;
408 }
409 break;
410
411 #ifdef RNDIS_OPTIONAL_STATS
412 case OID_GEN_DIRECTED_BYTES_XMIT:
413 DEBUG("%s: OID_GEN_DIRECTED_BYTES_XMIT\n", __FUNCTION__);
414 /*
415 * Aunt Tilly's size of shoes
416 * minus antarctica count of penguins
417 * divided by weight of Alpha Centauri
418 */
419 if (rndis_per_dev_params [configNr].stats) {
420 *outbuf = cpu_to_le32 (
421 (rndis_per_dev_params [configNr]
422 .stats->tx_packets -
423 rndis_per_dev_params [configNr]
424 .stats->tx_errors -
425 rndis_per_dev_params [configNr]
426 .stats->tx_dropped)
427 * 123);
428 retval = 0;
429 }
430 break;
431
432 case OID_GEN_DIRECTED_FRAMES_XMIT:
433 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_XMIT\n", __FUNCTION__);
434 /* dito */
435 if (rndis_per_dev_params [configNr].stats) {
436 *outbuf = cpu_to_le32 (
437 (rndis_per_dev_params [configNr]
438 .stats->tx_packets -
439 rndis_per_dev_params [configNr]
440 .stats->tx_errors -
441 rndis_per_dev_params [configNr]
442 .stats->tx_dropped)
443 / 123);
444 retval = 0;
445 }
446 break;
447
448 case OID_GEN_MULTICAST_BYTES_XMIT:
449 DEBUG("%s: OID_GEN_MULTICAST_BYTES_XMIT\n", __FUNCTION__);
450 if (rndis_per_dev_params [configNr].stats) {
451 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
452 .stats->multicast*1234);
453 retval = 0;
454 }
455 break;
456
457 case OID_GEN_MULTICAST_FRAMES_XMIT:
458 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_XMIT\n", __FUNCTION__);
459 if (rndis_per_dev_params [configNr].stats) {
460 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
461 .stats->multicast);
462 retval = 0;
463 }
464 break;
465
466 case OID_GEN_BROADCAST_BYTES_XMIT:
467 DEBUG("%s: OID_GEN_BROADCAST_BYTES_XMIT\n", __FUNCTION__);
468 if (rndis_per_dev_params [configNr].stats) {
469 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
470 .stats->tx_packets/42*255);
471 retval = 0;
472 }
473 break;
474
475 case OID_GEN_BROADCAST_FRAMES_XMIT:
476 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_XMIT\n", __FUNCTION__);
477 if (rndis_per_dev_params [configNr].stats) {
478 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
479 .stats->tx_packets/42);
480 retval = 0;
481 }
482 break;
483
484 case OID_GEN_DIRECTED_BYTES_RCV:
485 DEBUG("%s: OID_GEN_DIRECTED_BYTES_RCV\n", __FUNCTION__);
486 *outbuf = __constant_cpu_to_le32 (0);
487 retval = 0;
488 break;
489
490 case OID_GEN_DIRECTED_FRAMES_RCV:
491 DEBUG("%s: OID_GEN_DIRECTED_FRAMES_RCV\n", __FUNCTION__);
492 *outbuf = __constant_cpu_to_le32 (0);
493 retval = 0;
494 break;
495
496 case OID_GEN_MULTICAST_BYTES_RCV:
497 DEBUG("%s: OID_GEN_MULTICAST_BYTES_RCV\n", __FUNCTION__);
498 if (rndis_per_dev_params [configNr].stats) {
499 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
500 .stats->multicast * 1111);
501 retval = 0;
502 }
503 break;
504
505 case OID_GEN_MULTICAST_FRAMES_RCV:
506 DEBUG("%s: OID_GEN_MULTICAST_FRAMES_RCV\n", __FUNCTION__);
507 if (rndis_per_dev_params [configNr].stats) {
508 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
509 .stats->multicast);
510 retval = 0;
511 }
512 break;
513
514 case OID_GEN_BROADCAST_BYTES_RCV:
515 DEBUG("%s: OID_GEN_BROADCAST_BYTES_RCV\n", __FUNCTION__);
516 if (rndis_per_dev_params [configNr].stats) {
517 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
518 .stats->rx_packets/42*255);
519 retval = 0;
520 }
521 break;
522
523 case OID_GEN_BROADCAST_FRAMES_RCV:
524 DEBUG("%s: OID_GEN_BROADCAST_FRAMES_RCV\n", __FUNCTION__);
525 if (rndis_per_dev_params [configNr].stats) {
526 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
527 .stats->rx_packets/42);
528 retval = 0;
529 }
530 break;
531
532 case OID_GEN_RCV_CRC_ERROR:
533 DEBUG("%s: OID_GEN_RCV_CRC_ERROR\n", __FUNCTION__);
534 if (rndis_per_dev_params [configNr].stats) {
535 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
536 .stats->rx_crc_errors);
537 retval = 0;
538 }
539 break;
540
541 case OID_GEN_TRANSMIT_QUEUE_LENGTH:
542 DEBUG("%s: OID_GEN_TRANSMIT_QUEUE_LENGTH\n", __FUNCTION__);
543 *outbuf = __constant_cpu_to_le32 (0);
544 retval = 0;
545 break;
546 #endif /* RNDIS_OPTIONAL_STATS */
547
548 /* ieee802.3 OIDs (table 4-3) */
549
550 /* mandatory */
551 case OID_802_3_PERMANENT_ADDRESS:
552 DEBUG("%s: OID_802_3_PERMANENT_ADDRESS\n", __FUNCTION__);
553 if (rndis_per_dev_params [configNr].dev) {
554 length = ETH_ALEN;
555 memcpy (outbuf,
556 rndis_per_dev_params [configNr].host_mac,
557 length);
558 retval = 0;
559 }
560 break;
561
562 /* mandatory */
563 case OID_802_3_CURRENT_ADDRESS:
564 DEBUG("%s: OID_802_3_CURRENT_ADDRESS\n", __FUNCTION__);
565 if (rndis_per_dev_params [configNr].dev) {
566 length = ETH_ALEN;
567 memcpy (outbuf,
568 rndis_per_dev_params [configNr].host_mac,
569 length);
570 retval = 0;
571 }
572 break;
573
574 /* mandatory */
575 case OID_802_3_MULTICAST_LIST:
576 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
577 /* Multicast base address only */
578 *outbuf = __constant_cpu_to_le32 (0xE0000000);
579 retval = 0;
580 break;
581
582 /* mandatory */
583 case OID_802_3_MAXIMUM_LIST_SIZE:
584 DEBUG("%s: OID_802_3_MAXIMUM_LIST_SIZE\n", __FUNCTION__);
585 /* Multicast base address only */
586 *outbuf = __constant_cpu_to_le32 (1);
587 retval = 0;
588 break;
589
590 case OID_802_3_MAC_OPTIONS:
591 DEBUG("%s: OID_802_3_MAC_OPTIONS\n", __FUNCTION__);
592 break;
593
594 /* ieee802.3 statistics OIDs (table 4-4) */
595
596 /* mandatory */
597 case OID_802_3_RCV_ERROR_ALIGNMENT:
598 DEBUG("%s: OID_802_3_RCV_ERROR_ALIGNMENT\n", __FUNCTION__);
599 if (rndis_per_dev_params [configNr].stats) {
600 *outbuf = cpu_to_le32 (rndis_per_dev_params [configNr]
601 .stats->rx_frame_errors);
602 retval = 0;
603 }
604 break;
605
606 /* mandatory */
607 case OID_802_3_XMIT_ONE_COLLISION:
608 DEBUG("%s: OID_802_3_XMIT_ONE_COLLISION\n", __FUNCTION__);
609 *outbuf = __constant_cpu_to_le32 (0);
610 retval = 0;
611 break;
612
613 /* mandatory */
614 case OID_802_3_XMIT_MORE_COLLISIONS:
615 DEBUG("%s: OID_802_3_XMIT_MORE_COLLISIONS\n", __FUNCTION__);
616 *outbuf = __constant_cpu_to_le32 (0);
617 retval = 0;
618 break;
619
620 #ifdef RNDIS_OPTIONAL_STATS
621 case OID_802_3_XMIT_DEFERRED:
622 DEBUG("%s: OID_802_3_XMIT_DEFERRED\n", __FUNCTION__);
623 /* TODO */
624 break;
625
626 case OID_802_3_XMIT_MAX_COLLISIONS:
627 DEBUG("%s: OID_802_3_XMIT_MAX_COLLISIONS\n", __FUNCTION__);
628 /* TODO */
629 break;
630
631 case OID_802_3_RCV_OVERRUN:
632 DEBUG("%s: OID_802_3_RCV_OVERRUN\n", __FUNCTION__);
633 /* TODO */
634 break;
635
636 case OID_802_3_XMIT_UNDERRUN:
637 DEBUG("%s: OID_802_3_XMIT_UNDERRUN\n", __FUNCTION__);
638 /* TODO */
639 break;
640
641 case OID_802_3_XMIT_HEARTBEAT_FAILURE:
642 DEBUG("%s: OID_802_3_XMIT_HEARTBEAT_FAILURE\n", __FUNCTION__);
643 /* TODO */
644 break;
645
646 case OID_802_3_XMIT_TIMES_CRS_LOST:
647 DEBUG("%s: OID_802_3_XMIT_TIMES_CRS_LOST\n", __FUNCTION__);
648 /* TODO */
649 break;
650
651 case OID_802_3_XMIT_LATE_COLLISIONS:
652 DEBUG("%s: OID_802_3_XMIT_LATE_COLLISIONS\n", __FUNCTION__);
653 /* TODO */
654 break;
655 #endif /* RNDIS_OPTIONAL_STATS */
656
657 #ifdef RNDIS_PM
658 /* power management OIDs (table 4-5) */
659 case OID_PNP_CAPABILITIES:
660 DEBUG("%s: OID_PNP_CAPABILITIES\n", __FUNCTION__);
661
662 /* for now, no wakeup capabilities */
663 length = sizeof (struct NDIS_PNP_CAPABILITIES);
664 memset(outbuf, 0, length);
665 retval = 0;
666 break;
667 case OID_PNP_QUERY_POWER:
668 DEBUG("%s: OID_PNP_QUERY_POWER D%d\n", __FUNCTION__,
669 le32_to_cpup((__le32 *) buf) - 1);
670 /* only suspend is a real power state, and
671 * it can't be entered by OID_PNP_SET_POWER...
672 */
673 length = 0;
674 retval = 0;
675 break;
676 #endif
677
678 default:
679 printk (KERN_WARNING "%s: query unknown OID 0x%08X\n",
680 __FUNCTION__, OID);
681 }
682 if (retval < 0)
683 length = 0;
684
685 resp->InformationBufferLength = cpu_to_le32 (length);
686 r->length = length + sizeof *resp;
687 resp->MessageLength = cpu_to_le32 (r->length);
688 return retval;
689 }
690
691 static int gen_ndis_set_resp (u8 configNr, u32 OID, u8 *buf, u32 buf_len,
692 rndis_resp_t *r)
693 {
694 rndis_set_cmplt_type *resp;
695 int i, retval = -ENOTSUPP;
696 struct rndis_params *params;
697
698 if (!r)
699 return -ENOMEM;
700 resp = (rndis_set_cmplt_type *) r->buf;
701 if (!resp)
702 return -ENOMEM;
703
704 if (buf_len && rndis_debug > 1) {
705 DEBUG("set OID %08x value, len %d:\n", OID, buf_len);
706 for (i = 0; i < buf_len; i += 16) {
707 DEBUG ("%03d: %08x %08x %08x %08x\n", i,
708 le32_to_cpup((__le32 *)&buf[i]),
709 le32_to_cpup((__le32 *)&buf[i + 4]),
710 le32_to_cpup((__le32 *)&buf[i + 8]),
711 le32_to_cpup((__le32 *)&buf[i + 12]));
712 }
713 }
714
715 params = &rndis_per_dev_params [configNr];
716 switch (OID) {
717 case OID_GEN_CURRENT_PACKET_FILTER:
718
719 /* these NDIS_PACKET_TYPE_* bitflags are shared with
720 * cdc_filter; it's not RNDIS-specific
721 * NDIS_PACKET_TYPE_x == USB_CDC_PACKET_TYPE_x for x in:
722 * PROMISCUOUS, DIRECTED,
723 * MULTICAST, ALL_MULTICAST, BROADCAST
724 */
725 *params->filter = (u16) le32_to_cpup((__le32 *)buf);
726 DEBUG("%s: OID_GEN_CURRENT_PACKET_FILTER %08x\n",
727 __FUNCTION__, *params->filter);
728
729 /* this call has a significant side effect: it's
730 * what makes the packet flow start and stop, like
731 * activating the CDC Ethernet altsetting.
732 */
733 #ifdef RNDIS_PM
734 update_linkstate:
735 #endif
736 retval = 0;
737 if (*params->filter) {
738 params->state = RNDIS_DATA_INITIALIZED;
739 netif_carrier_on(params->dev);
740 if (netif_running(params->dev))
741 netif_wake_queue (params->dev);
742 } else {
743 params->state = RNDIS_INITIALIZED;
744 netif_carrier_off (params->dev);
745 netif_stop_queue (params->dev);
746 }
747 break;
748
749 case OID_802_3_MULTICAST_LIST:
750 /* I think we can ignore this */
751 DEBUG("%s: OID_802_3_MULTICAST_LIST\n", __FUNCTION__);
752 retval = 0;
753 break;
754 #if 0
755 case OID_GEN_RNDIS_CONFIG_PARAMETER:
756 {
757 struct rndis_config_parameter *param;
758 param = (struct rndis_config_parameter *) buf;
759 DEBUG("%s: OID_GEN_RNDIS_CONFIG_PARAMETER '%*s'\n",
760 __FUNCTION__,
761 min(cpu_to_le32(param->ParameterNameLength),80),
762 buf + param->ParameterNameOffset);
763 retval = 0;
764 }
765 break;
766 #endif
767
768 #ifdef RNDIS_PM
769 case OID_PNP_SET_POWER:
770 /* The only real power state is USB suspend, and RNDIS requests
771 * can't enter it; this one isn't really about power. After
772 * resuming, Windows forces a reset, and then SET_POWER D0.
773 * FIXME ... then things go batty; Windows wedges itself.
774 */
775 i = le32_to_cpup((__force __le32 *)buf);
776 DEBUG("%s: OID_PNP_SET_POWER D%d\n", __FUNCTION__, i - 1);
777 switch (i) {
778 case NdisDeviceStateD0:
779 *params->filter = params->saved_filter;
780 goto update_linkstate;
781 case NdisDeviceStateD3:
782 case NdisDeviceStateD2:
783 case NdisDeviceStateD1:
784 params->saved_filter = *params->filter;
785 retval = 0;
786 break;
787 }
788 break;
789
790 #ifdef RNDIS_WAKEUP
791 // no wakeup support advertised, so wakeup OIDs always fail:
792 // - OID_PNP_ENABLE_WAKE_UP
793 // - OID_PNP_{ADD,REMOVE}_WAKE_UP_PATTERN
794 #endif
795
796 #endif /* RNDIS_PM */
797
798 default:
799 printk (KERN_WARNING "%s: set unknown OID 0x%08X, size %d\n",
800 __FUNCTION__, OID, buf_len);
801 }
802
803 return retval;
804 }
805
806 /*
807 * Response Functions
808 */
809
810 static int rndis_init_response (int configNr, rndis_init_msg_type *buf)
811 {
812 rndis_init_cmplt_type *resp;
813 rndis_resp_t *r;
814
815 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
816
817 r = rndis_add_response (configNr, sizeof (rndis_init_cmplt_type));
818 if (!r)
819 return -ENOMEM;
820 resp = (rndis_init_cmplt_type *) r->buf;
821
822 resp->MessageType = __constant_cpu_to_le32 (
823 REMOTE_NDIS_INITIALIZE_CMPLT);
824 resp->MessageLength = __constant_cpu_to_le32 (52);
825 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
826 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
827 resp->MajorVersion = __constant_cpu_to_le32 (RNDIS_MAJOR_VERSION);
828 resp->MinorVersion = __constant_cpu_to_le32 (RNDIS_MINOR_VERSION);
829 resp->DeviceFlags = __constant_cpu_to_le32 (RNDIS_DF_CONNECTIONLESS);
830 resp->Medium = __constant_cpu_to_le32 (RNDIS_MEDIUM_802_3);
831 resp->MaxPacketsPerTransfer = __constant_cpu_to_le32 (1);
832 resp->MaxTransferSize = cpu_to_le32 (
833 rndis_per_dev_params [configNr].dev->mtu
834 + sizeof (struct ethhdr)
835 + sizeof (struct rndis_packet_msg_type)
836 + 22);
837 resp->PacketAlignmentFactor = __constant_cpu_to_le32 (0);
838 resp->AFListOffset = __constant_cpu_to_le32 (0);
839 resp->AFListSize = __constant_cpu_to_le32 (0);
840
841 if (rndis_per_dev_params [configNr].ack)
842 rndis_per_dev_params [configNr].ack (
843 rndis_per_dev_params [configNr].dev);
844
845 return 0;
846 }
847
848 static int rndis_query_response (int configNr, rndis_query_msg_type *buf)
849 {
850 rndis_query_cmplt_type *resp;
851 rndis_resp_t *r;
852
853 // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID));
854 if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP;
855
856 /*
857 * we need more memory:
858 * gen_ndis_query_resp expects enough space for
859 * rndis_query_cmplt_type followed by data.
860 * oid_supported_list is the largest data reply
861 */
862 r = rndis_add_response (configNr,
863 sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type));
864 if (!r)
865 return -ENOMEM;
866 resp = (rndis_query_cmplt_type *) r->buf;
867
868 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_QUERY_CMPLT);
869 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
870
871 if (gen_ndis_query_resp (configNr, le32_to_cpu (buf->OID),
872 le32_to_cpu(buf->InformationBufferOffset)
873 + 8 + (u8 *) buf,
874 le32_to_cpu(buf->InformationBufferLength),
875 r)) {
876 /* OID not supported */
877 resp->Status = __constant_cpu_to_le32 (
878 RNDIS_STATUS_NOT_SUPPORTED);
879 resp->MessageLength = __constant_cpu_to_le32 (sizeof *resp);
880 resp->InformationBufferLength = __constant_cpu_to_le32 (0);
881 resp->InformationBufferOffset = __constant_cpu_to_le32 (0);
882 } else
883 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
884
885 if (rndis_per_dev_params [configNr].ack)
886 rndis_per_dev_params [configNr].ack (
887 rndis_per_dev_params [configNr].dev);
888 return 0;
889 }
890
891 static int rndis_set_response (int configNr, rndis_set_msg_type *buf)
892 {
893 u32 BufLength, BufOffset;
894 rndis_set_cmplt_type *resp;
895 rndis_resp_t *r;
896
897 r = rndis_add_response (configNr, sizeof (rndis_set_cmplt_type));
898 if (!r)
899 return -ENOMEM;
900 resp = (rndis_set_cmplt_type *) r->buf;
901
902 BufLength = le32_to_cpu (buf->InformationBufferLength);
903 BufOffset = le32_to_cpu (buf->InformationBufferOffset);
904
905 #ifdef VERBOSE
906 DEBUG("%s: Length: %d\n", __FUNCTION__, BufLength);
907 DEBUG("%s: Offset: %d\n", __FUNCTION__, BufOffset);
908 DEBUG("%s: InfoBuffer: ", __FUNCTION__);
909
910 for (i = 0; i < BufLength; i++) {
911 DEBUG ("%02x ", *(((u8 *) buf) + i + 8 + BufOffset));
912 }
913
914 DEBUG ("\n");
915 #endif
916
917 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_SET_CMPLT);
918 resp->MessageLength = __constant_cpu_to_le32 (16);
919 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
920 if (gen_ndis_set_resp (configNr, le32_to_cpu (buf->OID),
921 ((u8 *) buf) + 8 + BufOffset, BufLength, r))
922 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_NOT_SUPPORTED);
923 else resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
924
925 if (rndis_per_dev_params [configNr].ack)
926 rndis_per_dev_params [configNr].ack (
927 rndis_per_dev_params [configNr].dev);
928
929 return 0;
930 }
931
932 static int rndis_reset_response (int configNr, rndis_reset_msg_type *buf)
933 {
934 rndis_reset_cmplt_type *resp;
935 rndis_resp_t *r;
936
937 r = rndis_add_response (configNr, sizeof (rndis_reset_cmplt_type));
938 if (!r)
939 return -ENOMEM;
940 resp = (rndis_reset_cmplt_type *) r->buf;
941
942 resp->MessageType = __constant_cpu_to_le32 (REMOTE_NDIS_RESET_CMPLT);
943 resp->MessageLength = __constant_cpu_to_le32 (16);
944 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
945 /* resent information */
946 resp->AddressingReset = __constant_cpu_to_le32 (1);
947
948 if (rndis_per_dev_params [configNr].ack)
949 rndis_per_dev_params [configNr].ack (
950 rndis_per_dev_params [configNr].dev);
951
952 return 0;
953 }
954
955 static int rndis_keepalive_response (int configNr,
956 rndis_keepalive_msg_type *buf)
957 {
958 rndis_keepalive_cmplt_type *resp;
959 rndis_resp_t *r;
960
961 /* host "should" check only in RNDIS_DATA_INITIALIZED state */
962
963 r = rndis_add_response (configNr, sizeof (rndis_keepalive_cmplt_type));
964 if (!r)
965 return -ENOMEM;
966 resp = (rndis_keepalive_cmplt_type *) r->buf;
967
968 resp->MessageType = __constant_cpu_to_le32 (
969 REMOTE_NDIS_KEEPALIVE_CMPLT);
970 resp->MessageLength = __constant_cpu_to_le32 (16);
971 resp->RequestID = buf->RequestID; /* Still LE in msg buffer */
972 resp->Status = __constant_cpu_to_le32 (RNDIS_STATUS_SUCCESS);
973
974 if (rndis_per_dev_params [configNr].ack)
975 rndis_per_dev_params [configNr].ack (
976 rndis_per_dev_params [configNr].dev);
977
978 return 0;
979 }
980
981
982 /*
983 * Device to Host Comunication
984 */
985 static int rndis_indicate_status_msg (int configNr, u32 status)
986 {
987 rndis_indicate_status_msg_type *resp;
988 rndis_resp_t *r;
989
990 if (rndis_per_dev_params [configNr].state == RNDIS_UNINITIALIZED)
991 return -ENOTSUPP;
992
993 r = rndis_add_response (configNr,
994 sizeof (rndis_indicate_status_msg_type));
995 if (!r)
996 return -ENOMEM;
997 resp = (rndis_indicate_status_msg_type *) r->buf;
998
999 resp->MessageType = __constant_cpu_to_le32 (
1000 REMOTE_NDIS_INDICATE_STATUS_MSG);
1001 resp->MessageLength = __constant_cpu_to_le32 (20);
1002 resp->Status = cpu_to_le32 (status);
1003 resp->StatusBufferLength = __constant_cpu_to_le32 (0);
1004 resp->StatusBufferOffset = __constant_cpu_to_le32 (0);
1005
1006 if (rndis_per_dev_params [configNr].ack)
1007 rndis_per_dev_params [configNr].ack (
1008 rndis_per_dev_params [configNr].dev);
1009 return 0;
1010 }
1011
1012 int rndis_signal_connect (int configNr)
1013 {
1014 rndis_per_dev_params [configNr].media_state
1015 = NDIS_MEDIA_STATE_CONNECTED;
1016 return rndis_indicate_status_msg (configNr,
1017 RNDIS_STATUS_MEDIA_CONNECT);
1018 }
1019
1020 int rndis_signal_disconnect (int configNr)
1021 {
1022 rndis_per_dev_params [configNr].media_state
1023 = NDIS_MEDIA_STATE_DISCONNECTED;
1024 return rndis_indicate_status_msg (configNr,
1025 RNDIS_STATUS_MEDIA_DISCONNECT);
1026 }
1027
1028 void rndis_uninit (int configNr)
1029 {
1030 u8 *buf;
1031 u32 length;
1032
1033 if (configNr >= RNDIS_MAX_CONFIGS)
1034 return;
1035 rndis_per_dev_params [configNr].used = 0;
1036 rndis_per_dev_params [configNr].state = RNDIS_UNINITIALIZED;
1037
1038 /* drain the response queue */
1039 while ((buf = rndis_get_next_response(configNr, &length)))
1040 rndis_free_response(configNr, buf);
1041 }
1042
1043 void rndis_set_host_mac (int configNr, const u8 *addr)
1044 {
1045 rndis_per_dev_params [configNr].host_mac = addr;
1046 }
1047
1048 /*
1049 * Message Parser
1050 */
1051 int rndis_msg_parser (u8 configNr, u8 *buf)
1052 {
1053 u32 MsgType, MsgLength;
1054 __le32 *tmp;
1055 struct rndis_params *params;
1056
1057 if (!buf)
1058 return -ENOMEM;
1059
1060 tmp = (__le32 *) buf;
1061 MsgType = le32_to_cpup(tmp++);
1062 MsgLength = le32_to_cpup(tmp++);
1063
1064 if (configNr >= RNDIS_MAX_CONFIGS)
1065 return -ENOTSUPP;
1066 params = &rndis_per_dev_params [configNr];
1067
1068 /* NOTE: RNDIS is *EXTREMELY* chatty ... Windows constantly polls for
1069 * rx/tx statistics and link status, in addition to KEEPALIVE traffic
1070 * and normal HC level polling to see if there's any IN traffic.
1071 */
1072
1073 /* For USB: responses may take up to 10 seconds */
1074 switch (MsgType) {
1075 case REMOTE_NDIS_INITIALIZE_MSG:
1076 DEBUG("%s: REMOTE_NDIS_INITIALIZE_MSG\n",
1077 __FUNCTION__ );
1078 params->state = RNDIS_INITIALIZED;
1079 return rndis_init_response (configNr,
1080 (rndis_init_msg_type *) buf);
1081
1082 case REMOTE_NDIS_HALT_MSG:
1083 DEBUG("%s: REMOTE_NDIS_HALT_MSG\n",
1084 __FUNCTION__ );
1085 params->state = RNDIS_UNINITIALIZED;
1086 if (params->dev) {
1087 netif_carrier_off (params->dev);
1088 netif_stop_queue (params->dev);
1089 }
1090 return 0;
1091
1092 case REMOTE_NDIS_QUERY_MSG:
1093 return rndis_query_response (configNr,
1094 (rndis_query_msg_type *) buf);
1095
1096 case REMOTE_NDIS_SET_MSG:
1097 return rndis_set_response (configNr,
1098 (rndis_set_msg_type *) buf);
1099
1100 case REMOTE_NDIS_RESET_MSG:
1101 DEBUG("%s: REMOTE_NDIS_RESET_MSG\n",
1102 __FUNCTION__ );
1103 return rndis_reset_response (configNr,
1104 (rndis_reset_msg_type *) buf);
1105
1106 case REMOTE_NDIS_KEEPALIVE_MSG:
1107 /* For USB: host does this every 5 seconds */
1108 if (rndis_debug > 1)
1109 DEBUG("%s: REMOTE_NDIS_KEEPALIVE_MSG\n",
1110 __FUNCTION__ );
1111 return rndis_keepalive_response (configNr,
1112 (rndis_keepalive_msg_type *)
1113 buf);
1114
1115 default:
1116 /* At least Windows XP emits some undefined RNDIS messages.
1117 * In one case those messages seemed to relate to the host
1118 * suspending itself.
1119 */
1120 printk (KERN_WARNING
1121 "%s: unknown RNDIS message 0x%08X len %d\n",
1122 __FUNCTION__ , MsgType, MsgLength);
1123 {
1124 unsigned i;
1125 for (i = 0; i < MsgLength; i += 16) {
1126 DEBUG ("%03d: "
1127 " %02x %02x %02x %02x"
1128 " %02x %02x %02x %02x"
1129 " %02x %02x %02x %02x"
1130 " %02x %02x %02x %02x"
1131 "\n",
1132 i,
1133 buf[i], buf [i+1],
1134 buf[i+2], buf[i+3],
1135 buf[i+4], buf [i+5],
1136 buf[i+6], buf[i+7],
1137 buf[i+8], buf [i+9],
1138 buf[i+10], buf[i+11],
1139 buf[i+12], buf [i+13],
1140 buf[i+14], buf[i+15]);
1141 }
1142 }
1143 break;
1144 }
1145
1146 return -ENOTSUPP;
1147 }
1148
1149 int rndis_register (int (* rndis_control_ack) (struct net_device *))
1150 {
1151 u8 i;
1152
1153 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1154 if (!rndis_per_dev_params [i].used) {
1155 rndis_per_dev_params [i].used = 1;
1156 rndis_per_dev_params [i].ack = rndis_control_ack;
1157 DEBUG("%s: configNr = %d\n", __FUNCTION__, i);
1158 return i;
1159 }
1160 }
1161 DEBUG("failed\n");
1162
1163 return -1;
1164 }
1165
1166 void rndis_deregister (int configNr)
1167 {
1168 DEBUG("%s: \n", __FUNCTION__ );
1169
1170 if (configNr >= RNDIS_MAX_CONFIGS) return;
1171 rndis_per_dev_params [configNr].used = 0;
1172
1173 return;
1174 }
1175
1176 int rndis_set_param_dev (u8 configNr, struct net_device *dev,
1177 struct net_device_stats *stats,
1178 u16 *cdc_filter)
1179 {
1180 DEBUG("%s:\n", __FUNCTION__ );
1181 if (!dev || !stats) return -1;
1182 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1183
1184 rndis_per_dev_params [configNr].dev = dev;
1185 rndis_per_dev_params [configNr].stats = stats;
1186 rndis_per_dev_params [configNr].filter = cdc_filter;
1187
1188 return 0;
1189 }
1190
1191 int rndis_set_param_vendor (u8 configNr, u32 vendorID, const char *vendorDescr)
1192 {
1193 DEBUG("%s:\n", __FUNCTION__ );
1194 if (!vendorDescr) return -1;
1195 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1196
1197 rndis_per_dev_params [configNr].vendorID = vendorID;
1198 rndis_per_dev_params [configNr].vendorDescr = vendorDescr;
1199
1200 return 0;
1201 }
1202
1203 int rndis_set_param_medium (u8 configNr, u32 medium, u32 speed)
1204 {
1205 DEBUG("%s: %u %u\n", __FUNCTION__, medium, speed);
1206 if (configNr >= RNDIS_MAX_CONFIGS) return -1;
1207
1208 rndis_per_dev_params [configNr].medium = medium;
1209 rndis_per_dev_params [configNr].speed = speed;
1210
1211 return 0;
1212 }
1213
1214 void rndis_add_hdr (struct sk_buff *skb)
1215 {
1216 struct rndis_packet_msg_type *header;
1217
1218 if (!skb)
1219 return;
1220 header = (void *) skb_push (skb, sizeof *header);
1221 memset (header, 0, sizeof *header);
1222 header->MessageType = __constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG);
1223 header->MessageLength = cpu_to_le32(skb->len);
1224 header->DataOffset = __constant_cpu_to_le32 (36);
1225 header->DataLength = cpu_to_le32(skb->len - sizeof *header);
1226 }
1227
1228 void rndis_free_response (int configNr, u8 *buf)
1229 {
1230 rndis_resp_t *r;
1231 struct list_head *act, *tmp;
1232
1233 list_for_each_safe (act, tmp,
1234 &(rndis_per_dev_params [configNr].resp_queue))
1235 {
1236 r = list_entry (act, rndis_resp_t, list);
1237 if (r && r->buf == buf) {
1238 list_del (&r->list);
1239 kfree (r);
1240 }
1241 }
1242 }
1243
1244 u8 *rndis_get_next_response (int configNr, u32 *length)
1245 {
1246 rndis_resp_t *r;
1247 struct list_head *act, *tmp;
1248
1249 if (!length) return NULL;
1250
1251 list_for_each_safe (act, tmp,
1252 &(rndis_per_dev_params [configNr].resp_queue))
1253 {
1254 r = list_entry (act, rndis_resp_t, list);
1255 if (!r->send) {
1256 r->send = 1;
1257 *length = r->length;
1258 return r->buf;
1259 }
1260 }
1261
1262 return NULL;
1263 }
1264
1265 static rndis_resp_t *rndis_add_response (int configNr, u32 length)
1266 {
1267 rndis_resp_t *r;
1268
1269 /* NOTE: this gets copied into ether.c USB_BUFSIZ bytes ... */
1270 r = kmalloc (sizeof (rndis_resp_t) + length, GFP_ATOMIC);
1271 if (!r) return NULL;
1272
1273 r->buf = (u8 *) (r + 1);
1274 r->length = length;
1275 r->send = 0;
1276
1277 list_add_tail (&r->list,
1278 &(rndis_per_dev_params [configNr].resp_queue));
1279 return r;
1280 }
1281
1282 int rndis_rm_hdr(struct sk_buff *skb)
1283 {
1284 /* tmp points to a struct rndis_packet_msg_type */
1285 __le32 *tmp = (void *) skb->data;
1286
1287 /* MessageType, MessageLength */
1288 if (__constant_cpu_to_le32(REMOTE_NDIS_PACKET_MSG)
1289 != get_unaligned(tmp++))
1290 return -EINVAL;
1291 tmp++;
1292
1293 /* DataOffset, DataLength */
1294 if (!skb_pull(skb, le32_to_cpu(get_unaligned(tmp++))
1295 + 8 /* offset of DataOffset */))
1296 return -EOVERFLOW;
1297 skb_trim(skb, le32_to_cpu(get_unaligned(tmp++)));
1298
1299 return 0;
1300 }
1301
1302 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1303
1304 static int rndis_proc_read (char *page, char **start, off_t off, int count, int *eof,
1305 void *data)
1306 {
1307 char *out = page;
1308 int len;
1309 rndis_params *param = (rndis_params *) data;
1310
1311 out += snprintf (out, count,
1312 "Config Nr. %d\n"
1313 "used : %s\n"
1314 "state : %s\n"
1315 "medium : 0x%08X\n"
1316 "speed : %d\n"
1317 "cable : %s\n"
1318 "vendor ID : 0x%08X\n"
1319 "vendor : %s\n",
1320 param->confignr, (param->used) ? "y" : "n",
1321 ({ char *s = "?";
1322 switch (param->state) {
1323 case RNDIS_UNINITIALIZED:
1324 s = "RNDIS_UNINITIALIZED"; break;
1325 case RNDIS_INITIALIZED:
1326 s = "RNDIS_INITIALIZED"; break;
1327 case RNDIS_DATA_INITIALIZED:
1328 s = "RNDIS_DATA_INITIALIZED"; break;
1329 }; s; }),
1330 param->medium,
1331 (param->media_state) ? 0 : param->speed*100,
1332 (param->media_state) ? "disconnected" : "connected",
1333 param->vendorID, param->vendorDescr);
1334
1335 len = out - page;
1336 len -= off;
1337
1338 if (len < count) {
1339 *eof = 1;
1340 if (len <= 0)
1341 return 0;
1342 } else
1343 len = count;
1344
1345 *start = page + off;
1346 return len;
1347 }
1348
1349 static int rndis_proc_write (struct file *file, const char __user *buffer,
1350 unsigned long count, void *data)
1351 {
1352 rndis_params *p = data;
1353 u32 speed = 0;
1354 int i, fl_speed = 0;
1355
1356 for (i = 0; i < count; i++) {
1357 char c;
1358 if (get_user(c, buffer))
1359 return -EFAULT;
1360 switch (c) {
1361 case '0':
1362 case '1':
1363 case '2':
1364 case '3':
1365 case '4':
1366 case '5':
1367 case '6':
1368 case '7':
1369 case '8':
1370 case '9':
1371 fl_speed = 1;
1372 speed = speed*10 + c - '0';
1373 break;
1374 case 'C':
1375 case 'c':
1376 rndis_signal_connect (p->confignr);
1377 break;
1378 case 'D':
1379 case 'd':
1380 rndis_signal_disconnect(p->confignr);
1381 break;
1382 default:
1383 if (fl_speed) p->speed = speed;
1384 else DEBUG ("%c is not valid\n", c);
1385 break;
1386 }
1387
1388 buffer++;
1389 }
1390
1391 return count;
1392 }
1393
1394 #define NAME_TEMPLATE "driver/rndis-%03d"
1395
1396 static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
1397
1398 #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
1399
1400
1401 int __init rndis_init (void)
1402 {
1403 u8 i;
1404
1405 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1406 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1407 char name [20];
1408
1409 sprintf (name, NAME_TEMPLATE, i);
1410 if (!(rndis_connect_state [i]
1411 = create_proc_entry (name, 0660, NULL)))
1412 {
1413 DEBUG ("%s :remove entries", __FUNCTION__);
1414 while (i) {
1415 sprintf (name, NAME_TEMPLATE, --i);
1416 remove_proc_entry (name, NULL);
1417 }
1418 DEBUG ("\n");
1419 return -EIO;
1420 }
1421
1422 rndis_connect_state [i]->nlink = 1;
1423 rndis_connect_state [i]->write_proc = rndis_proc_write;
1424 rndis_connect_state [i]->read_proc = rndis_proc_read;
1425 rndis_connect_state [i]->data = (void *)
1426 (rndis_per_dev_params + i);
1427 #endif
1428 rndis_per_dev_params [i].confignr = i;
1429 rndis_per_dev_params [i].used = 0;
1430 rndis_per_dev_params [i].state = RNDIS_UNINITIALIZED;
1431 rndis_per_dev_params [i].media_state
1432 = NDIS_MEDIA_STATE_DISCONNECTED;
1433 INIT_LIST_HEAD (&(rndis_per_dev_params [i].resp_queue));
1434 }
1435
1436 return 0;
1437 }
1438
1439 void rndis_exit (void)
1440 {
1441 #ifdef CONFIG_USB_GADGET_DEBUG_FILES
1442 u8 i;
1443 char name [20];
1444
1445 for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
1446 sprintf (name, NAME_TEMPLATE, i);
1447 remove_proc_entry (name, NULL);
1448 }
1449 #endif
1450 }
1451
Linux with added FPC-III support