Commit | Line | Data |
---|---|---|
fb7d879f OW |
1 | /* |
2 | * | |
3 | * Intel Management Engine Interface (Intel MEI) Linux driver | |
733ba91c | 4 | * Copyright (c) 2003-2012, Intel Corporation. |
fb7d879f OW |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms and conditions of the GNU General Public License, | |
8 | * version 2, as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope it will be useful, but WITHOUT | |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
14 | * | |
15 | */ | |
16 | ||
17 | ||
40e0b67b | 18 | #include <linux/export.h> |
fb7d879f OW |
19 | #include <linux/kthread.h> |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/fs.h> | |
22 | #include <linux/jiffies.h> | |
1f180359 | 23 | #include <linux/slab.h> |
34af1913 | 24 | #include <linux/pm_runtime.h> |
fb7d879f | 25 | |
4f3afe1d | 26 | #include <linux/mei.h> |
47a73801 TW |
27 | |
28 | #include "mei_dev.h" | |
0edb23fc | 29 | #include "hbm.h" |
90e0b5f1 | 30 | #include "client.h" |
fb7d879f OW |
31 | |
32 | ||
4c6e22b8 | 33 | /** |
83ce0741 | 34 | * mei_irq_compl_handler - dispatch complete handlers |
4c6e22b8 TW |
35 | * for the completed callbacks |
36 | * | |
a8605ea2 AU |
37 | * @dev: mei device |
38 | * @compl_list: list of completed cbs | |
4c6e22b8 TW |
39 | */ |
40 | void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list) | |
41 | { | |
42 | struct mei_cl_cb *cb, *next; | |
43 | struct mei_cl *cl; | |
44 | ||
45 | list_for_each_entry_safe(cb, next, &compl_list->list, list) { | |
46 | cl = cb->cl; | |
c54bf3ab | 47 | list_del_init(&cb->list); |
4c6e22b8 | 48 | |
2bf94cab | 49 | dev_dbg(dev->dev, "completing call back.\n"); |
4c6e22b8 | 50 | if (cl == &dev->iamthif_cl) |
9abd8b31 | 51 | mei_amthif_complete(cl, cb); |
4c6e22b8 | 52 | else |
db086fa9 | 53 | mei_cl_complete(cl, cb); |
4c6e22b8 TW |
54 | } |
55 | } | |
40e0b67b | 56 | EXPORT_SYMBOL_GPL(mei_irq_compl_handler); |
6e0f180f | 57 | |
fb7d879f | 58 | /** |
6e0f180f | 59 | * mei_cl_hbm_equal - check if hbm is addressed to the client |
fb7d879f | 60 | * |
6e0f180f | 61 | * @cl: host client |
fb7d879f OW |
62 | * @mei_hdr: header of mei client message |
63 | * | |
a8605ea2 | 64 | * Return: true if matches, false otherwise |
fb7d879f | 65 | */ |
6e0f180f TW |
66 | static inline int mei_cl_hbm_equal(struct mei_cl *cl, |
67 | struct mei_msg_hdr *mei_hdr) | |
fb7d879f | 68 | { |
1df629ef | 69 | return mei_cl_host_addr(cl) == mei_hdr->host_addr && |
d49ed64a | 70 | mei_cl_me_id(cl) == mei_hdr->me_addr; |
6e0f180f | 71 | } |
fb7d879f | 72 | |
331e4187 TW |
73 | /** |
74 | * mei_irq_discard_msg - discard received message | |
75 | * | |
76 | * @dev: mei device | |
77 | * @hdr: message header | |
78 | */ | |
331e4187 TW |
79 | void mei_irq_discard_msg(struct mei_device *dev, struct mei_msg_hdr *hdr) |
80 | { | |
81 | /* | |
82 | * no need to check for size as it is guarantied | |
83 | * that length fits into rd_msg_buf | |
84 | */ | |
85 | mei_read_slots(dev, dev->rd_msg_buf, hdr->length); | |
86 | dev_dbg(dev->dev, "discarding message " MEI_HDR_FMT "\n", | |
87 | MEI_HDR_PRM(hdr)); | |
88 | } | |
89 | ||
fb7d879f | 90 | /** |
ce23139c | 91 | * mei_cl_irq_read_msg - process client message |
fb7d879f | 92 | * |
3d33ff24 | 93 | * @cl: reading client |
fb7d879f | 94 | * @mei_hdr: header of mei client message |
3d33ff24 | 95 | * @complete_list: completion list |
fb7d879f | 96 | * |
3d33ff24 | 97 | * Return: always 0 |
fb7d879f | 98 | */ |
331e4187 TW |
99 | int mei_cl_irq_read_msg(struct mei_cl *cl, |
100 | struct mei_msg_hdr *mei_hdr, | |
101 | struct mei_cl_cb *complete_list) | |
fb7d879f | 102 | { |
3d33ff24 TW |
103 | struct mei_device *dev = cl->dev; |
104 | struct mei_cl_cb *cb; | |
479bc59d | 105 | unsigned char *buffer = NULL; |
f862b6b2 | 106 | size_t buf_sz; |
fb7d879f | 107 | |
a9bed610 TW |
108 | cb = list_first_entry_or_null(&cl->rd_pending, struct mei_cl_cb, list); |
109 | if (!cb) { | |
110 | cl_err(dev, cl, "pending read cb not found\n"); | |
3d33ff24 TW |
111 | goto out; |
112 | } | |
6e0f180f | 113 | |
f3de9b63 | 114 | if (!mei_cl_is_connected(cl)) { |
a9bed610 TW |
115 | cl_dbg(dev, cl, "not connected\n"); |
116 | cb->status = -ENODEV; | |
3d33ff24 TW |
117 | goto out; |
118 | } | |
6e0f180f | 119 | |
5db7514d | 120 | if (cb->buf.size == 0 || cb->buf.data == NULL) { |
3d33ff24 TW |
121 | cl_err(dev, cl, "response buffer is not allocated.\n"); |
122 | list_move_tail(&cb->list, &complete_list->list); | |
123 | cb->status = -ENOMEM; | |
124 | goto out; | |
125 | } | |
6e0f180f | 126 | |
f862b6b2 TW |
127 | buf_sz = mei_hdr->length + cb->buf_idx; |
128 | /* catch for integer overflow */ | |
129 | if (buf_sz < cb->buf_idx) { | |
35bf7692 | 130 | cl_err(dev, cl, "message is too big len %d idx %zu\n", |
f862b6b2 TW |
131 | mei_hdr->length, cb->buf_idx); |
132 | ||
133 | list_move_tail(&cb->list, &complete_list->list); | |
134 | cb->status = -EMSGSIZE; | |
135 | goto out; | |
136 | } | |
137 | ||
138 | if (cb->buf.size < buf_sz) { | |
35bf7692 | 139 | cl_dbg(dev, cl, "message overflow. size %zu len %d idx %zu\n", |
5db7514d | 140 | cb->buf.size, mei_hdr->length, cb->buf_idx); |
f862b6b2 | 141 | buffer = krealloc(cb->buf.data, buf_sz, GFP_KERNEL); |
3d33ff24 TW |
142 | |
143 | if (!buffer) { | |
144 | cb->status = -ENOMEM; | |
145 | list_move_tail(&cb->list, &complete_list->list); | |
146 | goto out; | |
6e0f180f | 147 | } |
5db7514d | 148 | cb->buf.data = buffer; |
f862b6b2 | 149 | cb->buf.size = buf_sz; |
fb7d879f OW |
150 | } |
151 | ||
5db7514d | 152 | buffer = cb->buf.data + cb->buf_idx; |
3d33ff24 TW |
153 | mei_read_slots(dev, buffer, mei_hdr->length); |
154 | ||
155 | cb->buf_idx += mei_hdr->length; | |
331e4187 | 156 | |
3d33ff24 | 157 | if (mei_hdr->msg_complete) { |
35bf7692 | 158 | cl_dbg(dev, cl, "completed read length = %zu\n", cb->buf_idx); |
3d33ff24 | 159 | list_move_tail(&cb->list, &complete_list->list); |
34af1913 AU |
160 | } else { |
161 | pm_runtime_mark_last_busy(dev->dev); | |
162 | pm_request_autosuspend(dev->dev); | |
3d33ff24 TW |
163 | } |
164 | ||
165 | out: | |
331e4187 TW |
166 | if (!buffer) |
167 | mei_irq_discard_msg(dev, mei_hdr); | |
fb7d879f OW |
168 | |
169 | return 0; | |
170 | } | |
171 | ||
6bb948c9 TW |
172 | /** |
173 | * mei_cl_irq_disconnect_rsp - send disconnection response message | |
174 | * | |
175 | * @cl: client | |
176 | * @cb: callback block. | |
6bb948c9 TW |
177 | * @cmpl_list: complete list. |
178 | * | |
a8605ea2 | 179 | * Return: 0, OK; otherwise, error. |
6bb948c9 TW |
180 | */ |
181 | static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb, | |
9d098192 | 182 | struct mei_cl_cb *cmpl_list) |
6bb948c9 TW |
183 | { |
184 | struct mei_device *dev = cl->dev; | |
9d098192 TW |
185 | u32 msg_slots; |
186 | int slots; | |
6bb948c9 TW |
187 | int ret; |
188 | ||
9d098192 TW |
189 | slots = mei_hbuf_empty_slots(dev); |
190 | msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_response)); | |
6bb948c9 | 191 | |
9d098192 | 192 | if (slots < msg_slots) |
6bb948c9 TW |
193 | return -EMSGSIZE; |
194 | ||
6bb948c9 | 195 | ret = mei_hbm_cl_disconnect_rsp(dev, cl); |
6a8d648c | 196 | list_move_tail(&cb->list, &cmpl_list->list); |
6bb948c9 TW |
197 | |
198 | return ret; | |
199 | } | |
200 | ||
fb7d879f | 201 | /** |
ce23139c | 202 | * mei_cl_irq_read - processes client read related operation from the |
6220d6a0 | 203 | * interrupt thread context - request for flow control credits |
fb7d879f | 204 | * |
6220d6a0 TW |
205 | * @cl: client |
206 | * @cb: callback block. | |
fb7d879f OW |
207 | * @cmpl_list: complete list. |
208 | * | |
a8605ea2 | 209 | * Return: 0, OK; otherwise, error. |
fb7d879f | 210 | */ |
6220d6a0 | 211 | static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb, |
9d098192 | 212 | struct mei_cl_cb *cmpl_list) |
fb7d879f | 213 | { |
6220d6a0 | 214 | struct mei_device *dev = cl->dev; |
9d098192 TW |
215 | u32 msg_slots; |
216 | int slots; | |
2ebf8c94 TW |
217 | int ret; |
218 | ||
9d098192 TW |
219 | msg_slots = mei_data2slots(sizeof(struct hbm_flow_control)); |
220 | slots = mei_hbuf_empty_slots(dev); | |
2ebf8c94 | 221 | |
9d098192 | 222 | if (slots < msg_slots) |
c8c8d080 | 223 | return -EMSGSIZE; |
7bdf72d3 | 224 | |
2ebf8c94 TW |
225 | ret = mei_hbm_cl_flow_control_req(dev, cl); |
226 | if (ret) { | |
227 | cl->status = ret; | |
6220d6a0 TW |
228 | cb->buf_idx = 0; |
229 | list_move_tail(&cb->list, &cmpl_list->list); | |
2ebf8c94 | 230 | return ret; |
1ccb7b62 | 231 | } |
2ebf8c94 | 232 | |
a9bed610 | 233 | list_move_tail(&cb->list, &cl->rd_pending); |
1ccb7b62 | 234 | |
fb7d879f OW |
235 | return 0; |
236 | } | |
237 | ||
603c53e4 AU |
238 | static inline bool hdr_is_hbm(struct mei_msg_hdr *mei_hdr) |
239 | { | |
240 | return mei_hdr->host_addr == 0 && mei_hdr->me_addr == 0; | |
241 | } | |
242 | ||
243 | static inline bool hdr_is_fixed(struct mei_msg_hdr *mei_hdr) | |
244 | { | |
245 | return mei_hdr->host_addr == 0 && mei_hdr->me_addr != 0; | |
246 | } | |
247 | ||
fb7d879f | 248 | /** |
393b148f | 249 | * mei_irq_read_handler - bottom half read routine after ISR to |
fb7d879f OW |
250 | * handle the read processing. |
251 | * | |
fb7d879f | 252 | * @dev: the device structure |
06ecd645 | 253 | * @cmpl_list: An instance of our list structure |
fb7d879f OW |
254 | * @slots: slots to read. |
255 | * | |
a8605ea2 | 256 | * Return: 0 on success, <0 on failure. |
fb7d879f | 257 | */ |
06ecd645 TW |
258 | int mei_irq_read_handler(struct mei_device *dev, |
259 | struct mei_cl_cb *cmpl_list, s32 *slots) | |
fb7d879f OW |
260 | { |
261 | struct mei_msg_hdr *mei_hdr; | |
10ee9074 TW |
262 | struct mei_cl *cl; |
263 | int ret; | |
fb7d879f OW |
264 | |
265 | if (!dev->rd_msg_hdr) { | |
827eef51 | 266 | dev->rd_msg_hdr = mei_read_hdr(dev); |
fb7d879f | 267 | (*slots)--; |
2bf94cab | 268 | dev_dbg(dev->dev, "slots =%08x.\n", *slots); |
fb7d879f OW |
269 | } |
270 | mei_hdr = (struct mei_msg_hdr *) &dev->rd_msg_hdr; | |
2bf94cab | 271 | dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr)); |
fb7d879f OW |
272 | |
273 | if (mei_hdr->reserved || !dev->rd_msg_hdr) { | |
2bf94cab | 274 | dev_err(dev->dev, "corrupted message header 0x%08X\n", |
10ee9074 | 275 | dev->rd_msg_hdr); |
fb7d879f OW |
276 | ret = -EBADMSG; |
277 | goto end; | |
278 | } | |
279 | ||
10ee9074 | 280 | if (mei_slots2data(*slots) < mei_hdr->length) { |
2bf94cab | 281 | dev_err(dev->dev, "less data available than length=%08x.\n", |
fb7d879f OW |
282 | *slots); |
283 | /* we can't read the message */ | |
b1b94b5d | 284 | ret = -ENODATA; |
fb7d879f OW |
285 | goto end; |
286 | } | |
287 | ||
10ee9074 | 288 | /* HBM message */ |
603c53e4 | 289 | if (hdr_is_hbm(mei_hdr)) { |
544f9460 TW |
290 | ret = mei_hbm_dispatch(dev, mei_hdr); |
291 | if (ret) { | |
2bf94cab | 292 | dev_dbg(dev->dev, "mei_hbm_dispatch failed ret = %d\n", |
544f9460 TW |
293 | ret); |
294 | goto end; | |
295 | } | |
10ee9074 TW |
296 | goto reset_slots; |
297 | } | |
15d4acc5 | 298 | |
83ce0741 | 299 | /* find recipient cl */ |
10ee9074 TW |
300 | list_for_each_entry(cl, &dev->file_list, link) { |
301 | if (mei_cl_hbm_equal(cl, mei_hdr)) { | |
302 | cl_dbg(dev, cl, "got a message\n"); | |
303 | break; | |
304 | } | |
305 | } | |
306 | ||
83ce0741 | 307 | /* if no recipient cl was found we assume corrupted header */ |
10ee9074 | 308 | if (&cl->link == &dev->file_list) { |
603c53e4 AU |
309 | /* A message for not connected fixed address clients |
310 | * should be silently discarded | |
311 | */ | |
312 | if (hdr_is_fixed(mei_hdr)) { | |
313 | mei_irq_discard_msg(dev, mei_hdr); | |
314 | ret = 0; | |
315 | goto reset_slots; | |
316 | } | |
2bf94cab | 317 | dev_err(dev->dev, "no destination client found 0x%08X\n", |
10ee9074 TW |
318 | dev->rd_msg_hdr); |
319 | ret = -EBADMSG; | |
320 | goto end; | |
321 | } | |
322 | ||
db4756fd TW |
323 | if (cl == &dev->iamthif_cl) { |
324 | ret = mei_amthif_irq_read_msg(cl, mei_hdr, cmpl_list); | |
fb7d879f | 325 | } else { |
3d33ff24 | 326 | ret = mei_cl_irq_read_msg(cl, mei_hdr, cmpl_list); |
fb7d879f OW |
327 | } |
328 | ||
3d33ff24 | 329 | |
10ee9074 | 330 | reset_slots: |
fb7d879f OW |
331 | /* reset the number of slots and header */ |
332 | *slots = mei_count_full_read_slots(dev); | |
333 | dev->rd_msg_hdr = 0; | |
334 | ||
335 | if (*slots == -EOVERFLOW) { | |
336 | /* overflow - reset */ | |
2bf94cab | 337 | dev_err(dev->dev, "resetting due to slots overflow.\n"); |
fb7d879f OW |
338 | /* set the event since message has been read */ |
339 | ret = -ERANGE; | |
340 | goto end; | |
341 | } | |
342 | end: | |
343 | return ret; | |
344 | } | |
40e0b67b | 345 | EXPORT_SYMBOL_GPL(mei_irq_read_handler); |
fb7d879f OW |
346 | |
347 | ||
348 | /** | |
06ecd645 TW |
349 | * mei_irq_write_handler - dispatch write requests |
350 | * after irq received | |
fb7d879f | 351 | * |
fb7d879f | 352 | * @dev: the device structure |
9a84d616 | 353 | * @cmpl_list: An instance of our list structure |
fb7d879f | 354 | * |
a8605ea2 | 355 | * Return: 0 on success, <0 on failure. |
fb7d879f | 356 | */ |
c8c8d080 | 357 | int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) |
fb7d879f OW |
358 | { |
359 | ||
360 | struct mei_cl *cl; | |
6220d6a0 | 361 | struct mei_cl_cb *cb, *next; |
fb601adb | 362 | struct mei_cl_cb *list; |
9a84d616 | 363 | s32 slots; |
fb7d879f OW |
364 | int ret; |
365 | ||
6aae48ff TW |
366 | |
367 | if (!mei_hbuf_acquire(dev)) | |
fb7d879f | 368 | return 0; |
6aae48ff | 369 | |
9a84d616 TW |
370 | slots = mei_hbuf_empty_slots(dev); |
371 | if (slots <= 0) | |
7d5e0e59 TW |
372 | return -EMSGSIZE; |
373 | ||
fb7d879f | 374 | /* complete all waiting for write CB */ |
2bf94cab | 375 | dev_dbg(dev->dev, "complete all waiting for write cb.\n"); |
fb7d879f OW |
376 | |
377 | list = &dev->write_waiting_list; | |
6220d6a0 TW |
378 | list_for_each_entry_safe(cb, next, &list->list, list) { |
379 | cl = cb->cl; | |
b7cd2d9f TW |
380 | |
381 | cl->status = 0; | |
c54bf3ab TW |
382 | cl_dbg(dev, cl, "MEI WRITE COMPLETE\n"); |
383 | cl->writing_state = MEI_WRITE_COMPLETE; | |
384 | list_move_tail(&cb->list, &cmpl_list->list); | |
fb7d879f OW |
385 | } |
386 | ||
fb7d879f | 387 | /* complete control write list CB */ |
2bf94cab | 388 | dev_dbg(dev->dev, "complete control write list cb.\n"); |
6220d6a0 TW |
389 | list_for_each_entry_safe(cb, next, &dev->ctrl_wr_list.list, list) { |
390 | cl = cb->cl; | |
6220d6a0 | 391 | switch (cb->fop_type) { |
5a8373fb | 392 | case MEI_FOP_DISCONNECT: |
c8372094 | 393 | /* send disconnect message */ |
5a8373fb | 394 | ret = mei_cl_irq_disconnect(cl, cb, cmpl_list); |
c8372094 TW |
395 | if (ret) |
396 | return ret; | |
fb7d879f | 397 | |
c8372094 | 398 | break; |
4b8960b4 | 399 | case MEI_FOP_READ: |
c8372094 | 400 | /* send flow control message */ |
9d098192 | 401 | ret = mei_cl_irq_read(cl, cb, cmpl_list); |
c8372094 TW |
402 | if (ret) |
403 | return ret; | |
fb7d879f | 404 | |
c8372094 | 405 | break; |
02a7eecc | 406 | case MEI_FOP_CONNECT: |
c8372094 | 407 | /* connect message */ |
9d098192 | 408 | ret = mei_cl_irq_connect(cl, cb, cmpl_list); |
c8372094 TW |
409 | if (ret) |
410 | return ret; | |
fb7d879f | 411 | |
c8372094 | 412 | break; |
6bb948c9 TW |
413 | case MEI_FOP_DISCONNECT_RSP: |
414 | /* send disconnect resp */ | |
9d098192 | 415 | ret = mei_cl_irq_disconnect_rsp(cl, cb, cmpl_list); |
6bb948c9 TW |
416 | if (ret) |
417 | return ret; | |
31a5ef24 | 418 | break; |
51678ccb TW |
419 | |
420 | case MEI_FOP_NOTIFY_START: | |
421 | case MEI_FOP_NOTIFY_STOP: | |
422 | ret = mei_cl_irq_notify(cl, cb, cmpl_list); | |
423 | if (ret) | |
424 | return ret; | |
425 | break; | |
c8372094 TW |
426 | default: |
427 | BUG(); | |
fb7d879f | 428 | } |
c8372094 | 429 | |
fb7d879f OW |
430 | } |
431 | /* complete write list CB */ | |
2bf94cab | 432 | dev_dbg(dev->dev, "complete write list cb.\n"); |
6220d6a0 TW |
433 | list_for_each_entry_safe(cb, next, &dev->write_list.list, list) { |
434 | cl = cb->cl; | |
be9d87a7 | 435 | if (cl == &dev->iamthif_cl) |
9d098192 | 436 | ret = mei_amthif_irq_write(cl, cb, cmpl_list); |
be9d87a7 | 437 | else |
9d098192 | 438 | ret = mei_cl_irq_write(cl, cb, cmpl_list); |
be9d87a7 TW |
439 | if (ret) |
440 | return ret; | |
fb7d879f OW |
441 | } |
442 | return 0; | |
443 | } | |
40e0b67b | 444 | EXPORT_SYMBOL_GPL(mei_irq_write_handler); |
fb7d879f OW |
445 | |
446 | ||
18901357 AU |
447 | /** |
448 | * mei_connect_timeout - connect/disconnect timeouts | |
449 | * | |
450 | * @cl: host client | |
451 | */ | |
452 | static void mei_connect_timeout(struct mei_cl *cl) | |
453 | { | |
454 | struct mei_device *dev = cl->dev; | |
455 | ||
456 | if (cl->state == MEI_FILE_CONNECTING) { | |
457 | if (dev->hbm_f_dot_supported) { | |
458 | cl->state = MEI_FILE_DISCONNECT_REQUIRED; | |
459 | wake_up(&cl->wait); | |
460 | return; | |
461 | } | |
462 | } | |
463 | mei_reset(dev); | |
464 | } | |
fb7d879f OW |
465 | |
466 | /** | |
467 | * mei_timer - timer function. | |
468 | * | |
469 | * @work: pointer to the work_struct structure | |
470 | * | |
fb7d879f | 471 | */ |
a61c6530 | 472 | void mei_timer(struct work_struct *work) |
fb7d879f | 473 | { |
31f88f57 | 474 | struct mei_cl *cl; |
fb7d879f OW |
475 | |
476 | struct mei_device *dev = container_of(work, | |
a61c6530 | 477 | struct mei_device, timer_work.work); |
fb7d879f OW |
478 | |
479 | ||
480 | mutex_lock(&dev->device_lock); | |
66ae460b TW |
481 | |
482 | /* Catch interrupt stalls during HBM init handshake */ | |
483 | if (dev->dev_state == MEI_DEV_INIT_CLIENTS && | |
484 | dev->hbm_state != MEI_HBM_IDLE) { | |
485 | ||
486 | if (dev->init_clients_timer) { | |
487 | if (--dev->init_clients_timer == 0) { | |
2bf94cab | 488 | dev_err(dev->dev, "timer: init clients timeout hbm_state = %d.\n", |
66ae460b | 489 | dev->hbm_state); |
33ec0826 | 490 | mei_reset(dev); |
66ae460b | 491 | goto out; |
fb7d879f OW |
492 | } |
493 | } | |
fb7d879f | 494 | } |
66ae460b TW |
495 | |
496 | if (dev->dev_state != MEI_DEV_ENABLED) | |
497 | goto out; | |
498 | ||
fb7d879f | 499 | /*** connect/disconnect timeouts ***/ |
31f88f57 TW |
500 | list_for_each_entry(cl, &dev->file_list, link) { |
501 | if (cl->timer_count) { | |
502 | if (--cl->timer_count == 0) { | |
2bf94cab | 503 | dev_err(dev->dev, "timer: connect/disconnect timeout.\n"); |
18901357 | 504 | mei_connect_timeout(cl); |
fb7d879f OW |
505 | goto out; |
506 | } | |
507 | } | |
508 | } | |
509 | ||
64092858 TW |
510 | if (!mei_cl_is_connected(&dev->iamthif_cl)) |
511 | goto out; | |
512 | ||
fb7d879f OW |
513 | if (dev->iamthif_stall_timer) { |
514 | if (--dev->iamthif_stall_timer == 0) { | |
2bf94cab | 515 | dev_err(dev->dev, "timer: amthif hanged.\n"); |
33ec0826 | 516 | mei_reset(dev); |
eb9af0ac | 517 | dev->iamthif_canceled = false; |
fb7d879f | 518 | dev->iamthif_state = MEI_IAMTHIF_IDLE; |
fb7d879f | 519 | |
601a1efa TW |
520 | mei_io_cb_free(dev->iamthif_current_cb); |
521 | dev->iamthif_current_cb = NULL; | |
fb7d879f | 522 | |
62e8e6ad | 523 | dev->iamthif_fp = NULL; |
19838fb8 | 524 | mei_amthif_run_next_cmd(dev); |
fb7d879f OW |
525 | } |
526 | } | |
527 | ||
fb7d879f | 528 | out: |
33ec0826 TW |
529 | if (dev->dev_state != MEI_DEV_DISABLED) |
530 | schedule_delayed_work(&dev->timer_work, 2 * HZ); | |
441ab50f | 531 | mutex_unlock(&dev->device_lock); |
fb7d879f | 532 | } |