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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * IEEE 1394 for Linux | |
3 | * | |
4 | * Raw interface to the bus | |
5 | * | |
6 | * Copyright (C) 1999, 2000 Andreas E. Bombe | |
7 | * 2001, 2002 Manfred Weihs <weihs@ict.tuwien.ac.at> | |
8 | * 2002 Christian Toegel <christian.toegel@gmx.at> | |
9 | * | |
10 | * This code is licensed under the GPL. See the file COPYING in the root | |
11 | * directory of the kernel sources for details. | |
12 | * | |
13 | * | |
14 | * Contributions: | |
15 | * | |
16 | * Manfred Weihs <weihs@ict.tuwien.ac.at> | |
17 | * configuration ROM manipulation | |
18 | * address range mapping | |
19 | * adaptation for new (transparent) loopback mechanism | |
20 | * sending of arbitrary async packets | |
21 | * Christian Toegel <christian.toegel@gmx.at> | |
22 | * address range mapping | |
23 | * lock64 request | |
24 | * transmit physical packet | |
25 | * busreset notification control (switch on/off) | |
26 | * busreset with selection of type (short/long) | |
27 | * request_reply | |
28 | */ | |
29 | ||
30 | #include <linux/kernel.h> | |
31 | #include <linux/list.h> | |
d43c36dc | 32 | #include <linux/sched.h> |
1da177e4 LT |
33 | #include <linux/string.h> |
34 | #include <linux/slab.h> | |
35 | #include <linux/fs.h> | |
36 | #include <linux/poll.h> | |
37 | #include <linux/module.h> | |
10963ea1 | 38 | #include <linux/mutex.h> |
1da177e4 | 39 | #include <linux/init.h> |
1da177e4 LT |
40 | #include <linux/interrupt.h> |
41 | #include <linux/vmalloc.h> | |
42 | #include <linux/cdev.h> | |
43 | #include <asm/uaccess.h> | |
44 | #include <asm/atomic.h> | |
4bc32c4d | 45 | #include <linux/compat.h> |
1da177e4 LT |
46 | |
47 | #include "csr1212.h" | |
de4394f1 SR |
48 | #include "highlevel.h" |
49 | #include "hosts.h" | |
1da177e4 | 50 | #include "ieee1394.h" |
1da177e4 | 51 | #include "ieee1394_core.h" |
de4394f1 | 52 | #include "ieee1394_hotplug.h" |
1da177e4 | 53 | #include "ieee1394_transactions.h" |
de4394f1 SR |
54 | #include "ieee1394_types.h" |
55 | #include "iso.h" | |
56 | #include "nodemgr.h" | |
1da177e4 LT |
57 | #include "raw1394.h" |
58 | #include "raw1394-private.h" | |
59 | ||
60 | #define int2ptr(x) ((void __user *)(unsigned long)x) | |
61 | #define ptr2int(x) ((u64)(unsigned long)(void __user *)x) | |
62 | ||
63 | #ifdef CONFIG_IEEE1394_VERBOSEDEBUG | |
64 | #define RAW1394_DEBUG | |
65 | #endif | |
66 | ||
67 | #ifdef RAW1394_DEBUG | |
68 | #define DBGMSG(fmt, args...) \ | |
69 | printk(KERN_INFO "raw1394:" fmt "\n" , ## args) | |
70 | #else | |
611aa19f | 71 | #define DBGMSG(fmt, args...) do {} while (0) |
1da177e4 LT |
72 | #endif |
73 | ||
74 | static LIST_HEAD(host_info_list); | |
75 | static int host_count; | |
76 | static DEFINE_SPINLOCK(host_info_lock); | |
77 | static atomic_t internal_generation = ATOMIC_INIT(0); | |
78 | ||
79 | static atomic_t iso_buffer_size; | |
80 | static const int iso_buffer_max = 4 * 1024 * 1024; /* 4 MB */ | |
81 | ||
82 | static struct hpsb_highlevel raw1394_highlevel; | |
83 | ||
84 | static int arm_read(struct hpsb_host *host, int nodeid, quadlet_t * buffer, | |
85 | u64 addr, size_t length, u16 flags); | |
86 | static int arm_write(struct hpsb_host *host, int nodeid, int destid, | |
87 | quadlet_t * data, u64 addr, size_t length, u16 flags); | |
88 | static int arm_lock(struct hpsb_host *host, int nodeid, quadlet_t * store, | |
89 | u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, | |
90 | u16 flags); | |
91 | static int arm_lock64(struct hpsb_host *host, int nodeid, octlet_t * store, | |
92 | u64 addr, octlet_t data, octlet_t arg, int ext_tcode, | |
93 | u16 flags); | |
1c4fb577 | 94 | static const struct hpsb_address_ops arm_ops = { |
1da177e4 LT |
95 | .read = arm_read, |
96 | .write = arm_write, | |
97 | .lock = arm_lock, | |
98 | .lock64 = arm_lock64, | |
99 | }; | |
100 | ||
101 | static void queue_complete_cb(struct pending_request *req); | |
102 | ||
dd0fc66f | 103 | static struct pending_request *__alloc_pending_request(gfp_t flags) |
1da177e4 LT |
104 | { |
105 | struct pending_request *req; | |
106 | ||
8551158a SR |
107 | req = kzalloc(sizeof(*req), flags); |
108 | if (req) | |
1da177e4 | 109 | INIT_LIST_HEAD(&req->list); |
1da177e4 LT |
110 | |
111 | return req; | |
112 | } | |
113 | ||
114 | static inline struct pending_request *alloc_pending_request(void) | |
115 | { | |
e94b1766 | 116 | return __alloc_pending_request(GFP_KERNEL); |
1da177e4 LT |
117 | } |
118 | ||
119 | static void free_pending_request(struct pending_request *req) | |
120 | { | |
121 | if (req->ibs) { | |
122 | if (atomic_dec_and_test(&req->ibs->refcount)) { | |
123 | atomic_sub(req->ibs->data_size, &iso_buffer_size); | |
124 | kfree(req->ibs); | |
125 | } | |
126 | } else if (req->free_data) { | |
127 | kfree(req->data); | |
128 | } | |
129 | hpsb_free_packet(req->packet); | |
130 | kfree(req); | |
131 | } | |
132 | ||
133 | /* fi->reqlists_lock must be taken */ | |
134 | static void __queue_complete_req(struct pending_request *req) | |
135 | { | |
136 | struct file_info *fi = req->file_info; | |
1da177e4 | 137 | |
45289bf6 SR |
138 | list_move_tail(&req->list, &fi->req_complete); |
139 | wake_up(&fi->wait_complete); | |
1da177e4 LT |
140 | } |
141 | ||
142 | static void queue_complete_req(struct pending_request *req) | |
143 | { | |
144 | unsigned long flags; | |
145 | struct file_info *fi = req->file_info; | |
146 | ||
147 | spin_lock_irqsave(&fi->reqlists_lock, flags); | |
148 | __queue_complete_req(req); | |
149 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); | |
150 | } | |
151 | ||
152 | static void queue_complete_cb(struct pending_request *req) | |
153 | { | |
154 | struct hpsb_packet *packet = req->packet; | |
155 | int rcode = (packet->header[1] >> 12) & 0xf; | |
156 | ||
157 | switch (packet->ack_code) { | |
158 | case ACKX_NONE: | |
159 | case ACKX_SEND_ERROR: | |
160 | req->req.error = RAW1394_ERROR_SEND_ERROR; | |
161 | break; | |
162 | case ACKX_ABORTED: | |
163 | req->req.error = RAW1394_ERROR_ABORTED; | |
164 | break; | |
165 | case ACKX_TIMEOUT: | |
166 | req->req.error = RAW1394_ERROR_TIMEOUT; | |
167 | break; | |
168 | default: | |
169 | req->req.error = (packet->ack_code << 16) | rcode; | |
170 | break; | |
171 | } | |
172 | ||
173 | if (!((packet->ack_code == ACK_PENDING) && (rcode == RCODE_COMPLETE))) { | |
174 | req->req.length = 0; | |
175 | } | |
176 | ||
177 | if ((req->req.type == RAW1394_REQ_ASYNC_READ) || | |
178 | (req->req.type == RAW1394_REQ_ASYNC_WRITE) || | |
179 | (req->req.type == RAW1394_REQ_ASYNC_STREAM) || | |
180 | (req->req.type == RAW1394_REQ_LOCK) || | |
181 | (req->req.type == RAW1394_REQ_LOCK64)) | |
182 | hpsb_free_tlabel(packet); | |
183 | ||
184 | queue_complete_req(req); | |
185 | } | |
186 | ||
187 | static void add_host(struct hpsb_host *host) | |
188 | { | |
189 | struct host_info *hi; | |
190 | unsigned long flags; | |
191 | ||
8551158a | 192 | hi = kmalloc(sizeof(*hi), GFP_KERNEL); |
1da177e4 | 193 | |
8551158a | 194 | if (hi) { |
1da177e4 LT |
195 | INIT_LIST_HEAD(&hi->list); |
196 | hi->host = host; | |
197 | INIT_LIST_HEAD(&hi->file_info_list); | |
198 | ||
199 | spin_lock_irqsave(&host_info_lock, flags); | |
200 | list_add_tail(&hi->list, &host_info_list); | |
201 | host_count++; | |
202 | spin_unlock_irqrestore(&host_info_lock, flags); | |
203 | } | |
204 | ||
205 | atomic_inc(&internal_generation); | |
206 | } | |
207 | ||
208 | static struct host_info *find_host_info(struct hpsb_host *host) | |
209 | { | |
210 | struct host_info *hi; | |
211 | ||
212 | list_for_each_entry(hi, &host_info_list, list) | |
213 | if (hi->host == host) | |
214 | return hi; | |
215 | ||
216 | return NULL; | |
217 | } | |
218 | ||
219 | static void remove_host(struct hpsb_host *host) | |
220 | { | |
221 | struct host_info *hi; | |
222 | unsigned long flags; | |
223 | ||
224 | spin_lock_irqsave(&host_info_lock, flags); | |
225 | hi = find_host_info(host); | |
226 | ||
227 | if (hi != NULL) { | |
228 | list_del(&hi->list); | |
229 | host_count--; | |
230 | /* | |
231 | FIXME: address ranges should be removed | |
232 | and fileinfo states should be initialized | |
233 | (including setting generation to | |
234 | internal-generation ...) | |
235 | */ | |
236 | } | |
237 | spin_unlock_irqrestore(&host_info_lock, flags); | |
238 | ||
239 | if (hi == NULL) { | |
240 | printk(KERN_ERR "raw1394: attempt to remove unknown host " | |
241 | "0x%p\n", host); | |
242 | return; | |
243 | } | |
244 | ||
245 | kfree(hi); | |
246 | ||
247 | atomic_inc(&internal_generation); | |
248 | } | |
249 | ||
250 | static void host_reset(struct hpsb_host *host) | |
251 | { | |
252 | unsigned long flags; | |
253 | struct host_info *hi; | |
254 | struct file_info *fi; | |
255 | struct pending_request *req; | |
256 | ||
257 | spin_lock_irqsave(&host_info_lock, flags); | |
258 | hi = find_host_info(host); | |
259 | ||
260 | if (hi != NULL) { | |
261 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
262 | if (fi->notification == RAW1394_NOTIFY_ON) { | |
54e6ecb2 | 263 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
264 | |
265 | if (req != NULL) { | |
266 | req->file_info = fi; | |
267 | req->req.type = RAW1394_REQ_BUS_RESET; | |
268 | req->req.generation = | |
269 | get_hpsb_generation(host); | |
270 | req->req.misc = (host->node_id << 16) | |
271 | | host->node_count; | |
272 | if (fi->protocol_version > 3) { | |
273 | req->req.misc |= | |
274 | (NODEID_TO_NODE | |
275 | (host->irm_id) | |
276 | << 8); | |
277 | } | |
278 | ||
279 | queue_complete_req(req); | |
280 | } | |
281 | } | |
282 | } | |
283 | } | |
284 | spin_unlock_irqrestore(&host_info_lock, flags); | |
285 | } | |
286 | ||
1da177e4 LT |
287 | static void fcp_request(struct hpsb_host *host, int nodeid, int direction, |
288 | int cts, u8 * data, size_t length) | |
289 | { | |
290 | unsigned long flags; | |
291 | struct host_info *hi; | |
292 | struct file_info *fi; | |
293 | struct pending_request *req, *req_next; | |
294 | struct iso_block_store *ibs = NULL; | |
295 | LIST_HEAD(reqs); | |
296 | ||
297 | if ((atomic_read(&iso_buffer_size) + length) > iso_buffer_max) { | |
298 | HPSB_INFO("dropped fcp request"); | |
299 | return; | |
300 | } | |
301 | ||
302 | spin_lock_irqsave(&host_info_lock, flags); | |
303 | hi = find_host_info(host); | |
304 | ||
305 | if (hi != NULL) { | |
306 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
307 | if (!fi->fcp_buffer) | |
308 | continue; | |
309 | ||
54e6ecb2 | 310 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
311 | if (!req) |
312 | break; | |
313 | ||
314 | if (!ibs) { | |
8551158a | 315 | ibs = kmalloc(sizeof(*ibs) + length, |
54e6ecb2 | 316 | GFP_ATOMIC); |
1da177e4 LT |
317 | if (!ibs) { |
318 | kfree(req); | |
319 | break; | |
320 | } | |
321 | ||
322 | atomic_add(length, &iso_buffer_size); | |
323 | atomic_set(&ibs->refcount, 0); | |
324 | ibs->data_size = length; | |
325 | memcpy(ibs->data, data, length); | |
326 | } | |
327 | ||
328 | atomic_inc(&ibs->refcount); | |
329 | ||
330 | req->file_info = fi; | |
331 | req->ibs = ibs; | |
332 | req->data = ibs->data; | |
333 | req->req.type = RAW1394_REQ_FCP_REQUEST; | |
334 | req->req.generation = get_hpsb_generation(host); | |
335 | req->req.misc = nodeid | (direction << 16); | |
336 | req->req.recvb = ptr2int(fi->fcp_buffer); | |
337 | req->req.length = length; | |
338 | ||
339 | list_add_tail(&req->list, &reqs); | |
340 | } | |
341 | } | |
342 | spin_unlock_irqrestore(&host_info_lock, flags); | |
343 | ||
344 | list_for_each_entry_safe(req, req_next, &reqs, list) | |
345 | queue_complete_req(req); | |
346 | } | |
347 | ||
4bc32c4d AK |
348 | #ifdef CONFIG_COMPAT |
349 | struct compat_raw1394_req { | |
7597028a BC |
350 | __u32 type; |
351 | __s32 error; | |
352 | __u32 misc; | |
4bc32c4d | 353 | |
7597028a BC |
354 | __u32 generation; |
355 | __u32 length; | |
4bc32c4d | 356 | |
7597028a | 357 | __u64 address; |
4bc32c4d | 358 | |
7597028a | 359 | __u64 tag; |
4bc32c4d | 360 | |
7597028a BC |
361 | __u64 sendb; |
362 | __u64 recvb; | |
59337087 SR |
363 | } |
364 | #if defined(CONFIG_X86_64) || defined(CONFIG_IA64) | |
365 | __attribute__((packed)) | |
366 | #endif | |
367 | ; | |
4bc32c4d AK |
368 | |
369 | static const char __user *raw1394_compat_write(const char __user *buf) | |
370 | { | |
7597028a | 371 | struct compat_raw1394_req __user *cr = (typeof(cr)) buf; |
4bc32c4d | 372 | struct raw1394_request __user *r; |
42169688 | 373 | |
4bc32c4d AK |
374 | r = compat_alloc_user_space(sizeof(struct raw1394_request)); |
375 | ||
376 | #define C(x) __copy_in_user(&r->x, &cr->x, sizeof(r->x)) | |
377 | ||
378 | if (copy_in_user(r, cr, sizeof(struct compat_raw1394_req)) || | |
7597028a BC |
379 | C(address) || |
380 | C(tag) || | |
381 | C(sendb) || | |
382 | C(recvb)) | |
42169688 SR |
383 | return (__force const char __user *)ERR_PTR(-EFAULT); |
384 | ||
4bc32c4d AK |
385 | return (const char __user *)r; |
386 | } | |
387 | #undef C | |
388 | ||
389 | #define P(x) __put_user(r->x, &cr->x) | |
390 | ||
7597028a | 391 | static int |
4bc32c4d AK |
392 | raw1394_compat_read(const char __user *buf, struct raw1394_request *r) |
393 | { | |
ee9be425 | 394 | struct compat_raw1394_req __user *cr = (typeof(cr)) buf; |
42169688 | 395 | |
7597028a | 396 | if (!access_ok(VERIFY_WRITE, cr, sizeof(struct compat_raw1394_req)) || |
4bc32c4d AK |
397 | P(type) || |
398 | P(error) || | |
399 | P(misc) || | |
400 | P(generation) || | |
401 | P(length) || | |
402 | P(address) || | |
403 | P(tag) || | |
404 | P(sendb) || | |
405 | P(recvb)) | |
406 | return -EFAULT; | |
42169688 | 407 | |
4bc32c4d AK |
408 | return sizeof(struct compat_raw1394_req); |
409 | } | |
410 | #undef P | |
411 | ||
412 | #endif | |
413 | ||
45289bf6 SR |
414 | /* get next completed request (caller must hold fi->reqlists_lock) */ |
415 | static inline struct pending_request *__next_complete_req(struct file_info *fi) | |
416 | { | |
417 | struct list_head *lh; | |
418 | struct pending_request *req = NULL; | |
419 | ||
420 | if (!list_empty(&fi->req_complete)) { | |
421 | lh = fi->req_complete.next; | |
422 | list_del(lh); | |
423 | req = list_entry(lh, struct pending_request, list); | |
424 | } | |
425 | return req; | |
426 | } | |
427 | ||
428 | /* atomically get next completed request */ | |
429 | static struct pending_request *next_complete_req(struct file_info *fi) | |
430 | { | |
431 | unsigned long flags; | |
432 | struct pending_request *req; | |
433 | ||
434 | spin_lock_irqsave(&fi->reqlists_lock, flags); | |
435 | req = __next_complete_req(fi); | |
436 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); | |
437 | return req; | |
438 | } | |
4bc32c4d | 439 | |
1da177e4 LT |
440 | static ssize_t raw1394_read(struct file *file, char __user * buffer, |
441 | size_t count, loff_t * offset_is_ignored) | |
442 | { | |
443 | struct file_info *fi = (struct file_info *)file->private_data; | |
1da177e4 LT |
444 | struct pending_request *req; |
445 | ssize_t ret; | |
446 | ||
4bc32c4d AK |
447 | #ifdef CONFIG_COMPAT |
448 | if (count == sizeof(struct compat_raw1394_req)) { | |
449 | /* ok */ | |
450 | } else | |
451 | #endif | |
1da177e4 LT |
452 | if (count != sizeof(struct raw1394_request)) { |
453 | return -EINVAL; | |
454 | } | |
455 | ||
456 | if (!access_ok(VERIFY_WRITE, buffer, count)) { | |
457 | return -EFAULT; | |
458 | } | |
459 | ||
460 | if (file->f_flags & O_NONBLOCK) { | |
45289bf6 | 461 | if (!(req = next_complete_req(fi))) |
1da177e4 | 462 | return -EAGAIN; |
1da177e4 | 463 | } else { |
45289bf6 SR |
464 | /* |
465 | * NB: We call the macro wait_event_interruptible() with a | |
466 | * condition argument with side effect. This is only possible | |
467 | * because the side effect does not occur until the condition | |
468 | * became true, and wait_event_interruptible() won't evaluate | |
469 | * the condition again after that. | |
470 | */ | |
471 | if (wait_event_interruptible(fi->wait_complete, | |
472 | (req = next_complete_req(fi)))) | |
1da177e4 | 473 | return -ERESTARTSYS; |
1da177e4 LT |
474 | } |
475 | ||
1da177e4 LT |
476 | if (req->req.length) { |
477 | if (copy_to_user(int2ptr(req->req.recvb), req->data, | |
478 | req->req.length)) { | |
479 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
480 | } | |
481 | } | |
1da177e4 | 482 | |
4bc32c4d | 483 | #ifdef CONFIG_COMPAT |
7597028a BC |
484 | if (count == sizeof(struct compat_raw1394_req) && |
485 | sizeof(struct compat_raw1394_req) != | |
486 | sizeof(struct raw1394_request)) { | |
4bc32c4d | 487 | ret = raw1394_compat_read(buffer, &req->req); |
7597028a | 488 | } else |
4bc32c4d AK |
489 | #endif |
490 | { | |
491 | if (copy_to_user(buffer, &req->req, sizeof(req->req))) { | |
492 | ret = -EFAULT; | |
493 | goto out; | |
7597028a | 494 | } |
4bc32c4d AK |
495 | ret = (ssize_t) sizeof(struct raw1394_request); |
496 | } | |
1da177e4 LT |
497 | out: |
498 | free_pending_request(req); | |
499 | return ret; | |
500 | } | |
501 | ||
502 | static int state_opened(struct file_info *fi, struct pending_request *req) | |
503 | { | |
504 | if (req->req.type == RAW1394_REQ_INITIALIZE) { | |
505 | switch (req->req.misc) { | |
506 | case RAW1394_KERNELAPI_VERSION: | |
507 | case 3: | |
508 | fi->state = initialized; | |
509 | fi->protocol_version = req->req.misc; | |
510 | req->req.error = RAW1394_ERROR_NONE; | |
511 | req->req.generation = atomic_read(&internal_generation); | |
512 | break; | |
513 | ||
514 | default: | |
515 | req->req.error = RAW1394_ERROR_COMPAT; | |
516 | req->req.misc = RAW1394_KERNELAPI_VERSION; | |
517 | } | |
518 | } else { | |
519 | req->req.error = RAW1394_ERROR_STATE_ORDER; | |
520 | } | |
521 | ||
522 | req->req.length = 0; | |
523 | queue_complete_req(req); | |
883b97ea | 524 | return 0; |
1da177e4 LT |
525 | } |
526 | ||
527 | static int state_initialized(struct file_info *fi, struct pending_request *req) | |
528 | { | |
4a9949d7 | 529 | unsigned long flags; |
1da177e4 LT |
530 | struct host_info *hi; |
531 | struct raw1394_khost_list *khl; | |
532 | ||
533 | if (req->req.generation != atomic_read(&internal_generation)) { | |
534 | req->req.error = RAW1394_ERROR_GENERATION; | |
535 | req->req.generation = atomic_read(&internal_generation); | |
536 | req->req.length = 0; | |
537 | queue_complete_req(req); | |
883b97ea | 538 | return 0; |
1da177e4 LT |
539 | } |
540 | ||
541 | switch (req->req.type) { | |
542 | case RAW1394_REQ_LIST_CARDS: | |
4a9949d7 | 543 | spin_lock_irqsave(&host_info_lock, flags); |
54e6ecb2 | 544 | khl = kmalloc(sizeof(*khl) * host_count, GFP_ATOMIC); |
1da177e4 | 545 | |
8551158a | 546 | if (khl) { |
1da177e4 LT |
547 | req->req.misc = host_count; |
548 | req->data = (quadlet_t *) khl; | |
549 | ||
550 | list_for_each_entry(hi, &host_info_list, list) { | |
551 | khl->nodes = hi->host->node_count; | |
552 | strcpy(khl->name, hi->host->driver->name); | |
553 | khl++; | |
554 | } | |
555 | } | |
4a9949d7 | 556 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 | 557 | |
8551158a | 558 | if (khl) { |
1da177e4 LT |
559 | req->req.error = RAW1394_ERROR_NONE; |
560 | req->req.length = min(req->req.length, | |
561 | (u32) (sizeof | |
562 | (struct raw1394_khost_list) | |
563 | * req->req.misc)); | |
564 | req->free_data = 1; | |
565 | } else { | |
566 | return -ENOMEM; | |
567 | } | |
568 | break; | |
569 | ||
570 | case RAW1394_REQ_SET_CARD: | |
4a9949d7 | 571 | spin_lock_irqsave(&host_info_lock, flags); |
0fe4c6fc | 572 | if (req->req.misc >= host_count) { |
1da177e4 | 573 | req->req.error = RAW1394_ERROR_INVALID_ARG; |
0fe4c6fc | 574 | goto out_set_card; |
1da177e4 | 575 | } |
0fe4c6fc SR |
576 | list_for_each_entry(hi, &host_info_list, list) |
577 | if (!req->req.misc--) | |
578 | break; | |
579 | get_device(&hi->host->device); /* FIXME handle failure case */ | |
580 | list_add_tail(&fi->list, &hi->file_info_list); | |
581 | ||
582 | /* prevent unloading of the host's low-level driver */ | |
583 | if (!try_module_get(hi->host->driver->owner)) { | |
584 | req->req.error = RAW1394_ERROR_ABORTED; | |
585 | goto out_set_card; | |
586 | } | |
587 | WARN_ON(fi->host); | |
588 | fi->host = hi->host; | |
589 | fi->state = connected; | |
590 | ||
591 | req->req.error = RAW1394_ERROR_NONE; | |
592 | req->req.generation = get_hpsb_generation(fi->host); | |
593 | req->req.misc = (fi->host->node_id << 16) | |
594 | | fi->host->node_count; | |
595 | if (fi->protocol_version > 3) | |
596 | req->req.misc |= NODEID_TO_NODE(fi->host->irm_id) << 8; | |
597 | out_set_card: | |
4a9949d7 | 598 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
599 | |
600 | req->req.length = 0; | |
601 | break; | |
602 | ||
603 | default: | |
604 | req->req.error = RAW1394_ERROR_STATE_ORDER; | |
605 | req->req.length = 0; | |
606 | break; | |
607 | } | |
608 | ||
609 | queue_complete_req(req); | |
883b97ea | 610 | return 0; |
1da177e4 LT |
611 | } |
612 | ||
1da177e4 LT |
613 | static void handle_fcp_listen(struct file_info *fi, struct pending_request *req) |
614 | { | |
615 | if (req->req.misc) { | |
616 | if (fi->fcp_buffer) { | |
617 | req->req.error = RAW1394_ERROR_ALREADY; | |
618 | } else { | |
619 | fi->fcp_buffer = int2ptr(req->req.recvb); | |
620 | } | |
621 | } else { | |
622 | if (!fi->fcp_buffer) { | |
623 | req->req.error = RAW1394_ERROR_ALREADY; | |
624 | } else { | |
625 | fi->fcp_buffer = NULL; | |
626 | } | |
627 | } | |
628 | ||
629 | req->req.length = 0; | |
630 | queue_complete_req(req); | |
631 | } | |
632 | ||
633 | static int handle_async_request(struct file_info *fi, | |
634 | struct pending_request *req, int node) | |
635 | { | |
4a9949d7 | 636 | unsigned long flags; |
1da177e4 LT |
637 | struct hpsb_packet *packet = NULL; |
638 | u64 addr = req->req.address & 0xffffffffffffULL; | |
639 | ||
640 | switch (req->req.type) { | |
641 | case RAW1394_REQ_ASYNC_READ: | |
642 | DBGMSG("read_request called"); | |
643 | packet = | |
644 | hpsb_make_readpacket(fi->host, node, addr, req->req.length); | |
645 | ||
646 | if (!packet) | |
647 | return -ENOMEM; | |
648 | ||
649 | if (req->req.length == 4) | |
650 | req->data = &packet->header[3]; | |
651 | else | |
652 | req->data = packet->data; | |
653 | ||
654 | break; | |
655 | ||
656 | case RAW1394_REQ_ASYNC_WRITE: | |
657 | DBGMSG("write_request called"); | |
658 | ||
659 | packet = hpsb_make_writepacket(fi->host, node, addr, NULL, | |
660 | req->req.length); | |
661 | if (!packet) | |
662 | return -ENOMEM; | |
663 | ||
664 | if (req->req.length == 4) { | |
665 | if (copy_from_user | |
666 | (&packet->header[3], int2ptr(req->req.sendb), | |
667 | req->req.length)) | |
668 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
669 | } else { | |
670 | if (copy_from_user | |
671 | (packet->data, int2ptr(req->req.sendb), | |
672 | req->req.length)) | |
673 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
674 | } | |
675 | ||
676 | req->req.length = 0; | |
677 | break; | |
678 | ||
679 | case RAW1394_REQ_ASYNC_STREAM: | |
680 | DBGMSG("stream_request called"); | |
681 | ||
682 | packet = | |
683 | hpsb_make_streampacket(fi->host, NULL, req->req.length, | |
684 | node & 0x3f /*channel */ , | |
685 | (req->req.misc >> 16) & 0x3, | |
686 | req->req.misc & 0xf); | |
687 | if (!packet) | |
688 | return -ENOMEM; | |
689 | ||
690 | if (copy_from_user(packet->data, int2ptr(req->req.sendb), | |
691 | req->req.length)) | |
692 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
693 | ||
694 | req->req.length = 0; | |
695 | break; | |
696 | ||
697 | case RAW1394_REQ_LOCK: | |
698 | DBGMSG("lock_request called"); | |
699 | if ((req->req.misc == EXTCODE_FETCH_ADD) | |
700 | || (req->req.misc == EXTCODE_LITTLE_ADD)) { | |
701 | if (req->req.length != 4) { | |
702 | req->req.error = RAW1394_ERROR_INVALID_ARG; | |
703 | break; | |
704 | } | |
705 | } else { | |
706 | if (req->req.length != 8) { | |
707 | req->req.error = RAW1394_ERROR_INVALID_ARG; | |
708 | break; | |
709 | } | |
710 | } | |
711 | ||
712 | packet = hpsb_make_lockpacket(fi->host, node, addr, | |
713 | req->req.misc, NULL, 0); | |
714 | if (!packet) | |
715 | return -ENOMEM; | |
716 | ||
717 | if (copy_from_user(packet->data, int2ptr(req->req.sendb), | |
718 | req->req.length)) { | |
719 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
720 | break; | |
721 | } | |
722 | ||
723 | req->data = packet->data; | |
724 | req->req.length = 4; | |
725 | break; | |
726 | ||
727 | case RAW1394_REQ_LOCK64: | |
728 | DBGMSG("lock64_request called"); | |
729 | if ((req->req.misc == EXTCODE_FETCH_ADD) | |
730 | || (req->req.misc == EXTCODE_LITTLE_ADD)) { | |
731 | if (req->req.length != 8) { | |
732 | req->req.error = RAW1394_ERROR_INVALID_ARG; | |
733 | break; | |
734 | } | |
735 | } else { | |
736 | if (req->req.length != 16) { | |
737 | req->req.error = RAW1394_ERROR_INVALID_ARG; | |
738 | break; | |
739 | } | |
740 | } | |
741 | packet = hpsb_make_lock64packet(fi->host, node, addr, | |
742 | req->req.misc, NULL, 0); | |
743 | if (!packet) | |
744 | return -ENOMEM; | |
745 | ||
746 | if (copy_from_user(packet->data, int2ptr(req->req.sendb), | |
747 | req->req.length)) { | |
748 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
749 | break; | |
750 | } | |
751 | ||
752 | req->data = packet->data; | |
753 | req->req.length = 8; | |
754 | break; | |
755 | ||
756 | default: | |
757 | req->req.error = RAW1394_ERROR_STATE_ORDER; | |
758 | } | |
759 | ||
760 | req->packet = packet; | |
761 | ||
762 | if (req->req.error) { | |
763 | req->req.length = 0; | |
764 | queue_complete_req(req); | |
883b97ea | 765 | return 0; |
1da177e4 LT |
766 | } |
767 | ||
768 | hpsb_set_packet_complete_task(packet, | |
769 | (void (*)(void *))queue_complete_cb, req); | |
770 | ||
4a9949d7 | 771 | spin_lock_irqsave(&fi->reqlists_lock, flags); |
1da177e4 | 772 | list_add_tail(&req->list, &fi->req_pending); |
4a9949d7 | 773 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); |
1da177e4 LT |
774 | |
775 | packet->generation = req->req.generation; | |
776 | ||
777 | if (hpsb_send_packet(packet) < 0) { | |
778 | req->req.error = RAW1394_ERROR_SEND_ERROR; | |
779 | req->req.length = 0; | |
780 | hpsb_free_tlabel(packet); | |
781 | queue_complete_req(req); | |
782 | } | |
883b97ea | 783 | return 0; |
1da177e4 LT |
784 | } |
785 | ||
1da177e4 LT |
786 | static int handle_async_send(struct file_info *fi, struct pending_request *req) |
787 | { | |
4a9949d7 | 788 | unsigned long flags; |
1da177e4 LT |
789 | struct hpsb_packet *packet; |
790 | int header_length = req->req.misc & 0xffff; | |
791 | int expect_response = req->req.misc >> 16; | |
976da96a | 792 | size_t data_size; |
1da177e4 | 793 | |
7542e0e6 SR |
794 | if (header_length > req->req.length || header_length < 12 || |
795 | header_length > FIELD_SIZEOF(struct hpsb_packet, header)) { | |
1da177e4 LT |
796 | req->req.error = RAW1394_ERROR_INVALID_ARG; |
797 | req->req.length = 0; | |
798 | queue_complete_req(req); | |
883b97ea | 799 | return 0; |
1da177e4 LT |
800 | } |
801 | ||
976da96a PV |
802 | data_size = req->req.length - header_length; |
803 | packet = hpsb_alloc_packet(data_size); | |
1da177e4 LT |
804 | req->packet = packet; |
805 | if (!packet) | |
806 | return -ENOMEM; | |
807 | ||
808 | if (copy_from_user(packet->header, int2ptr(req->req.sendb), | |
809 | header_length)) { | |
810 | req->req.error = RAW1394_ERROR_MEMFAULT; | |
811 | req->req.length = 0; | |
812 | queue_complete_req(req); | |
883b97ea | 813 | return 0; |
1da177e4 LT |
814 | } |
815 | ||
816 | if (copy_from_user | |
817 | (packet->data, int2ptr(req->req.sendb) + header_length, | |
976da96a | 818 | data_size)) { |
1da177e4 LT |
819 | req->req.error = RAW1394_ERROR_MEMFAULT; |
820 | req->req.length = 0; | |
821 | queue_complete_req(req); | |
883b97ea | 822 | return 0; |
1da177e4 LT |
823 | } |
824 | ||
825 | packet->type = hpsb_async; | |
826 | packet->node_id = packet->header[0] >> 16; | |
827 | packet->tcode = (packet->header[0] >> 4) & 0xf; | |
828 | packet->tlabel = (packet->header[0] >> 10) & 0x3f; | |
829 | packet->host = fi->host; | |
830 | packet->expect_response = expect_response; | |
831 | packet->header_size = header_length; | |
976da96a | 832 | packet->data_size = data_size; |
1da177e4 LT |
833 | |
834 | req->req.length = 0; | |
835 | hpsb_set_packet_complete_task(packet, | |
836 | (void (*)(void *))queue_complete_cb, req); | |
837 | ||
4a9949d7 | 838 | spin_lock_irqsave(&fi->reqlists_lock, flags); |
1da177e4 | 839 | list_add_tail(&req->list, &fi->req_pending); |
4a9949d7 | 840 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); |
1da177e4 LT |
841 | |
842 | /* Update the generation of the packet just before sending. */ | |
843 | packet->generation = req->req.generation; | |
844 | ||
845 | if (hpsb_send_packet(packet) < 0) { | |
846 | req->req.error = RAW1394_ERROR_SEND_ERROR; | |
847 | queue_complete_req(req); | |
848 | } | |
849 | ||
883b97ea | 850 | return 0; |
1da177e4 LT |
851 | } |
852 | ||
853 | static int arm_read(struct hpsb_host *host, int nodeid, quadlet_t * buffer, | |
854 | u64 addr, size_t length, u16 flags) | |
855 | { | |
4a9949d7 | 856 | unsigned long irqflags; |
1da177e4 LT |
857 | struct pending_request *req; |
858 | struct host_info *hi; | |
859 | struct file_info *fi = NULL; | |
860 | struct list_head *entry; | |
861 | struct arm_addr *arm_addr = NULL; | |
862 | struct arm_request *arm_req = NULL; | |
863 | struct arm_response *arm_resp = NULL; | |
864 | int found = 0, size = 0, rcode = -1; | |
865 | struct arm_request_response *arm_req_resp = NULL; | |
866 | ||
a5c52df8 | 867 | DBGMSG("arm_read called by node: %X " |
1da177e4 LT |
868 | "addr: %4.4x %8.8x length: %Zu", nodeid, |
869 | (u16) ((addr >> 32) & 0xFFFF), (u32) (addr & 0xFFFFFFFF), | |
870 | length); | |
4a9949d7 | 871 | spin_lock_irqsave(&host_info_lock, irqflags); |
1da177e4 LT |
872 | hi = find_host_info(host); /* search address-entry */ |
873 | if (hi != NULL) { | |
874 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
875 | entry = fi->addr_list.next; | |
876 | while (entry != &(fi->addr_list)) { | |
877 | arm_addr = | |
878 | list_entry(entry, struct arm_addr, | |
879 | addr_list); | |
880 | if (((arm_addr->start) <= (addr)) | |
881 | && ((arm_addr->end) >= (addr + length))) { | |
882 | found = 1; | |
883 | break; | |
884 | } | |
885 | entry = entry->next; | |
886 | } | |
887 | if (found) { | |
888 | break; | |
889 | } | |
890 | } | |
891 | } | |
892 | rcode = -1; | |
893 | if (!found) { | |
894 | printk(KERN_ERR "raw1394: arm_read FAILED addr_entry not found" | |
895 | " -> rcode_address_error\n"); | |
4a9949d7 | 896 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
897 | return (RCODE_ADDRESS_ERROR); |
898 | } else { | |
899 | DBGMSG("arm_read addr_entry FOUND"); | |
900 | } | |
901 | if (arm_addr->rec_length < length) { | |
902 | DBGMSG("arm_read blocklength too big -> rcode_data_error"); | |
903 | rcode = RCODE_DATA_ERROR; /* hardware error, data is unavailable */ | |
904 | } | |
905 | if (rcode == -1) { | |
906 | if (arm_addr->access_rights & ARM_READ) { | |
907 | if (!(arm_addr->client_transactions & ARM_READ)) { | |
908 | memcpy(buffer, | |
909 | (arm_addr->addr_space_buffer) + (addr - | |
910 | (arm_addr-> | |
911 | start)), | |
912 | length); | |
913 | DBGMSG("arm_read -> (rcode_complete)"); | |
914 | rcode = RCODE_COMPLETE; | |
915 | } | |
916 | } else { | |
917 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
918 | DBGMSG("arm_read -> rcode_type_error (access denied)"); | |
919 | } | |
920 | } | |
921 | if (arm_addr->notification_options & ARM_READ) { | |
922 | DBGMSG("arm_read -> entering notification-section"); | |
54e6ecb2 | 923 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
924 | if (!req) { |
925 | DBGMSG("arm_read -> rcode_conflict_error"); | |
4a9949d7 | 926 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
927 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
928 | The request may be retried */ | |
929 | } | |
930 | if (rcode == RCODE_COMPLETE) { | |
931 | size = | |
932 | sizeof(struct arm_request) + | |
933 | sizeof(struct arm_response) + | |
934 | length * sizeof(byte_t) + | |
935 | sizeof(struct arm_request_response); | |
936 | } else { | |
937 | size = | |
938 | sizeof(struct arm_request) + | |
939 | sizeof(struct arm_response) + | |
940 | sizeof(struct arm_request_response); | |
941 | } | |
54e6ecb2 | 942 | req->data = kmalloc(size, GFP_ATOMIC); |
1da177e4 LT |
943 | if (!(req->data)) { |
944 | free_pending_request(req); | |
945 | DBGMSG("arm_read -> rcode_conflict_error"); | |
4a9949d7 | 946 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
947 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
948 | The request may be retried */ | |
949 | } | |
950 | req->free_data = 1; | |
951 | req->file_info = fi; | |
952 | req->req.type = RAW1394_REQ_ARM; | |
953 | req->req.generation = get_hpsb_generation(host); | |
954 | req->req.misc = | |
955 | (((length << 16) & (0xFFFF0000)) | (ARM_READ & 0xFF)); | |
956 | req->req.tag = arm_addr->arm_tag; | |
957 | req->req.recvb = arm_addr->recvb; | |
958 | req->req.length = size; | |
959 | arm_req_resp = (struct arm_request_response *)(req->data); | |
960 | arm_req = (struct arm_request *)((byte_t *) (req->data) + | |
961 | (sizeof | |
962 | (struct | |
963 | arm_request_response))); | |
964 | arm_resp = | |
965 | (struct arm_response *)((byte_t *) (arm_req) + | |
966 | (sizeof(struct arm_request))); | |
967 | arm_req->buffer = NULL; | |
968 | arm_resp->buffer = NULL; | |
969 | if (rcode == RCODE_COMPLETE) { | |
970 | byte_t *buf = | |
971 | (byte_t *) arm_resp + sizeof(struct arm_response); | |
972 | memcpy(buf, | |
973 | (arm_addr->addr_space_buffer) + (addr - | |
974 | (arm_addr-> | |
975 | start)), | |
976 | length); | |
977 | arm_resp->buffer = | |
978 | int2ptr((arm_addr->recvb) + | |
979 | sizeof(struct arm_request_response) + | |
980 | sizeof(struct arm_request) + | |
981 | sizeof(struct arm_response)); | |
982 | } | |
983 | arm_resp->buffer_length = | |
984 | (rcode == RCODE_COMPLETE) ? length : 0; | |
985 | arm_resp->response_code = rcode; | |
986 | arm_req->buffer_length = 0; | |
987 | arm_req->generation = req->req.generation; | |
988 | arm_req->extended_transaction_code = 0; | |
989 | arm_req->destination_offset = addr; | |
990 | arm_req->source_nodeid = nodeid; | |
991 | arm_req->destination_nodeid = host->node_id; | |
992 | arm_req->tlabel = (flags >> 10) & 0x3f; | |
993 | arm_req->tcode = (flags >> 4) & 0x0f; | |
994 | arm_req_resp->request = int2ptr((arm_addr->recvb) + | |
995 | sizeof(struct | |
996 | arm_request_response)); | |
997 | arm_req_resp->response = | |
998 | int2ptr((arm_addr->recvb) + | |
999 | sizeof(struct arm_request_response) + | |
1000 | sizeof(struct arm_request)); | |
1001 | queue_complete_req(req); | |
1002 | } | |
4a9949d7 | 1003 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1004 | return (rcode); |
1005 | } | |
1006 | ||
1007 | static int arm_write(struct hpsb_host *host, int nodeid, int destid, | |
1008 | quadlet_t * data, u64 addr, size_t length, u16 flags) | |
1009 | { | |
4a9949d7 | 1010 | unsigned long irqflags; |
1da177e4 LT |
1011 | struct pending_request *req; |
1012 | struct host_info *hi; | |
1013 | struct file_info *fi = NULL; | |
1014 | struct list_head *entry; | |
1015 | struct arm_addr *arm_addr = NULL; | |
1016 | struct arm_request *arm_req = NULL; | |
1017 | struct arm_response *arm_resp = NULL; | |
1018 | int found = 0, size = 0, rcode = -1, length_conflict = 0; | |
1019 | struct arm_request_response *arm_req_resp = NULL; | |
1020 | ||
a5c52df8 | 1021 | DBGMSG("arm_write called by node: %X " |
1da177e4 LT |
1022 | "addr: %4.4x %8.8x length: %Zu", nodeid, |
1023 | (u16) ((addr >> 32) & 0xFFFF), (u32) (addr & 0xFFFFFFFF), | |
1024 | length); | |
4a9949d7 | 1025 | spin_lock_irqsave(&host_info_lock, irqflags); |
1da177e4 LT |
1026 | hi = find_host_info(host); /* search address-entry */ |
1027 | if (hi != NULL) { | |
1028 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
1029 | entry = fi->addr_list.next; | |
1030 | while (entry != &(fi->addr_list)) { | |
1031 | arm_addr = | |
1032 | list_entry(entry, struct arm_addr, | |
1033 | addr_list); | |
1034 | if (((arm_addr->start) <= (addr)) | |
1035 | && ((arm_addr->end) >= (addr + length))) { | |
1036 | found = 1; | |
1037 | break; | |
1038 | } | |
1039 | entry = entry->next; | |
1040 | } | |
1041 | if (found) { | |
1042 | break; | |
1043 | } | |
1044 | } | |
1045 | } | |
1046 | rcode = -1; | |
1047 | if (!found) { | |
1048 | printk(KERN_ERR "raw1394: arm_write FAILED addr_entry not found" | |
1049 | " -> rcode_address_error\n"); | |
4a9949d7 | 1050 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1051 | return (RCODE_ADDRESS_ERROR); |
1052 | } else { | |
1053 | DBGMSG("arm_write addr_entry FOUND"); | |
1054 | } | |
1055 | if (arm_addr->rec_length < length) { | |
1056 | DBGMSG("arm_write blocklength too big -> rcode_data_error"); | |
1057 | length_conflict = 1; | |
1058 | rcode = RCODE_DATA_ERROR; /* hardware error, data is unavailable */ | |
1059 | } | |
1060 | if (rcode == -1) { | |
1061 | if (arm_addr->access_rights & ARM_WRITE) { | |
1062 | if (!(arm_addr->client_transactions & ARM_WRITE)) { | |
1063 | memcpy((arm_addr->addr_space_buffer) + | |
1064 | (addr - (arm_addr->start)), data, | |
1065 | length); | |
1066 | DBGMSG("arm_write -> (rcode_complete)"); | |
1067 | rcode = RCODE_COMPLETE; | |
1068 | } | |
1069 | } else { | |
1070 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
1071 | DBGMSG("arm_write -> rcode_type_error (access denied)"); | |
1072 | } | |
1073 | } | |
1074 | if (arm_addr->notification_options & ARM_WRITE) { | |
1075 | DBGMSG("arm_write -> entering notification-section"); | |
54e6ecb2 | 1076 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
1077 | if (!req) { |
1078 | DBGMSG("arm_write -> rcode_conflict_error"); | |
4a9949d7 | 1079 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1080 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
1081 | The request my be retried */ | |
1082 | } | |
1083 | size = | |
1084 | sizeof(struct arm_request) + sizeof(struct arm_response) + | |
1085 | (length) * sizeof(byte_t) + | |
1086 | sizeof(struct arm_request_response); | |
54e6ecb2 | 1087 | req->data = kmalloc(size, GFP_ATOMIC); |
1da177e4 LT |
1088 | if (!(req->data)) { |
1089 | free_pending_request(req); | |
1090 | DBGMSG("arm_write -> rcode_conflict_error"); | |
4a9949d7 | 1091 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1092 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
1093 | The request may be retried */ | |
1094 | } | |
1095 | req->free_data = 1; | |
1096 | req->file_info = fi; | |
1097 | req->req.type = RAW1394_REQ_ARM; | |
1098 | req->req.generation = get_hpsb_generation(host); | |
1099 | req->req.misc = | |
1100 | (((length << 16) & (0xFFFF0000)) | (ARM_WRITE & 0xFF)); | |
1101 | req->req.tag = arm_addr->arm_tag; | |
1102 | req->req.recvb = arm_addr->recvb; | |
1103 | req->req.length = size; | |
1104 | arm_req_resp = (struct arm_request_response *)(req->data); | |
1105 | arm_req = (struct arm_request *)((byte_t *) (req->data) + | |
1106 | (sizeof | |
1107 | (struct | |
1108 | arm_request_response))); | |
1109 | arm_resp = | |
1110 | (struct arm_response *)((byte_t *) (arm_req) + | |
1111 | (sizeof(struct arm_request))); | |
1112 | arm_resp->buffer = NULL; | |
1113 | memcpy((byte_t *) arm_resp + sizeof(struct arm_response), | |
1114 | data, length); | |
1115 | arm_req->buffer = int2ptr((arm_addr->recvb) + | |
1116 | sizeof(struct arm_request_response) + | |
1117 | sizeof(struct arm_request) + | |
1118 | sizeof(struct arm_response)); | |
1119 | arm_req->buffer_length = length; | |
1120 | arm_req->generation = req->req.generation; | |
1121 | arm_req->extended_transaction_code = 0; | |
1122 | arm_req->destination_offset = addr; | |
1123 | arm_req->source_nodeid = nodeid; | |
1124 | arm_req->destination_nodeid = destid; | |
1125 | arm_req->tlabel = (flags >> 10) & 0x3f; | |
1126 | arm_req->tcode = (flags >> 4) & 0x0f; | |
1127 | arm_resp->buffer_length = 0; | |
1128 | arm_resp->response_code = rcode; | |
1129 | arm_req_resp->request = int2ptr((arm_addr->recvb) + | |
1130 | sizeof(struct | |
1131 | arm_request_response)); | |
1132 | arm_req_resp->response = | |
1133 | int2ptr((arm_addr->recvb) + | |
1134 | sizeof(struct arm_request_response) + | |
1135 | sizeof(struct arm_request)); | |
1136 | queue_complete_req(req); | |
1137 | } | |
4a9949d7 | 1138 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1139 | return (rcode); |
1140 | } | |
1141 | ||
1142 | static int arm_lock(struct hpsb_host *host, int nodeid, quadlet_t * store, | |
1143 | u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, | |
1144 | u16 flags) | |
1145 | { | |
4a9949d7 | 1146 | unsigned long irqflags; |
1da177e4 LT |
1147 | struct pending_request *req; |
1148 | struct host_info *hi; | |
1149 | struct file_info *fi = NULL; | |
1150 | struct list_head *entry; | |
1151 | struct arm_addr *arm_addr = NULL; | |
1152 | struct arm_request *arm_req = NULL; | |
1153 | struct arm_response *arm_resp = NULL; | |
1154 | int found = 0, size = 0, rcode = -1; | |
1155 | quadlet_t old, new; | |
1156 | struct arm_request_response *arm_req_resp = NULL; | |
1157 | ||
1158 | if (((ext_tcode & 0xFF) == EXTCODE_FETCH_ADD) || | |
1159 | ((ext_tcode & 0xFF) == EXTCODE_LITTLE_ADD)) { | |
1160 | DBGMSG("arm_lock called by node: %X " | |
1161 | "addr: %4.4x %8.8x extcode: %2.2X data: %8.8X", | |
1162 | nodeid, (u16) ((addr >> 32) & 0xFFFF), | |
1163 | (u32) (addr & 0xFFFFFFFF), ext_tcode & 0xFF, | |
1164 | be32_to_cpu(data)); | |
1165 | } else { | |
1166 | DBGMSG("arm_lock called by node: %X " | |
1167 | "addr: %4.4x %8.8x extcode: %2.2X data: %8.8X arg: %8.8X", | |
1168 | nodeid, (u16) ((addr >> 32) & 0xFFFF), | |
1169 | (u32) (addr & 0xFFFFFFFF), ext_tcode & 0xFF, | |
1170 | be32_to_cpu(data), be32_to_cpu(arg)); | |
1171 | } | |
4a9949d7 | 1172 | spin_lock_irqsave(&host_info_lock, irqflags); |
1da177e4 LT |
1173 | hi = find_host_info(host); /* search address-entry */ |
1174 | if (hi != NULL) { | |
1175 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
1176 | entry = fi->addr_list.next; | |
1177 | while (entry != &(fi->addr_list)) { | |
1178 | arm_addr = | |
1179 | list_entry(entry, struct arm_addr, | |
1180 | addr_list); | |
1181 | if (((arm_addr->start) <= (addr)) | |
1182 | && ((arm_addr->end) >= | |
1183 | (addr + sizeof(*store)))) { | |
1184 | found = 1; | |
1185 | break; | |
1186 | } | |
1187 | entry = entry->next; | |
1188 | } | |
1189 | if (found) { | |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | rcode = -1; | |
1195 | if (!found) { | |
1196 | printk(KERN_ERR "raw1394: arm_lock FAILED addr_entry not found" | |
1197 | " -> rcode_address_error\n"); | |
4a9949d7 | 1198 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1199 | return (RCODE_ADDRESS_ERROR); |
1200 | } else { | |
1201 | DBGMSG("arm_lock addr_entry FOUND"); | |
1202 | } | |
1203 | if (rcode == -1) { | |
1204 | if (arm_addr->access_rights & ARM_LOCK) { | |
1205 | if (!(arm_addr->client_transactions & ARM_LOCK)) { | |
1206 | memcpy(&old, | |
1207 | (arm_addr->addr_space_buffer) + (addr - | |
1208 | (arm_addr-> | |
1209 | start)), | |
1210 | sizeof(old)); | |
1211 | switch (ext_tcode) { | |
1212 | case (EXTCODE_MASK_SWAP): | |
1213 | new = data | (old & ~arg); | |
1214 | break; | |
1215 | case (EXTCODE_COMPARE_SWAP): | |
1216 | if (old == arg) { | |
1217 | new = data; | |
1218 | } else { | |
1219 | new = old; | |
1220 | } | |
1221 | break; | |
1222 | case (EXTCODE_FETCH_ADD): | |
1223 | new = | |
1224 | cpu_to_be32(be32_to_cpu(data) + | |
1225 | be32_to_cpu(old)); | |
1226 | break; | |
1227 | case (EXTCODE_LITTLE_ADD): | |
1228 | new = | |
1229 | cpu_to_le32(le32_to_cpu(data) + | |
1230 | le32_to_cpu(old)); | |
1231 | break; | |
1232 | case (EXTCODE_BOUNDED_ADD): | |
1233 | if (old != arg) { | |
1234 | new = | |
1235 | cpu_to_be32(be32_to_cpu | |
1236 | (data) + | |
1237 | be32_to_cpu | |
1238 | (old)); | |
1239 | } else { | |
1240 | new = old; | |
1241 | } | |
1242 | break; | |
1243 | case (EXTCODE_WRAP_ADD): | |
1244 | if (old != arg) { | |
1245 | new = | |
1246 | cpu_to_be32(be32_to_cpu | |
1247 | (data) + | |
1248 | be32_to_cpu | |
1249 | (old)); | |
1250 | } else { | |
1251 | new = data; | |
1252 | } | |
1253 | break; | |
1254 | default: | |
1255 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
1256 | printk(KERN_ERR | |
1257 | "raw1394: arm_lock FAILED " | |
1258 | "ext_tcode not allowed -> rcode_type_error\n"); | |
1259 | break; | |
1260 | } /*switch */ | |
1261 | if (rcode == -1) { | |
1262 | DBGMSG("arm_lock -> (rcode_complete)"); | |
1263 | rcode = RCODE_COMPLETE; | |
1264 | memcpy(store, &old, sizeof(*store)); | |
1265 | memcpy((arm_addr->addr_space_buffer) + | |
1266 | (addr - (arm_addr->start)), | |
1267 | &new, sizeof(*store)); | |
1268 | } | |
1269 | } | |
1270 | } else { | |
1271 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
1272 | DBGMSG("arm_lock -> rcode_type_error (access denied)"); | |
1273 | } | |
1274 | } | |
1275 | if (arm_addr->notification_options & ARM_LOCK) { | |
1276 | byte_t *buf1, *buf2; | |
1277 | DBGMSG("arm_lock -> entering notification-section"); | |
54e6ecb2 | 1278 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
1279 | if (!req) { |
1280 | DBGMSG("arm_lock -> rcode_conflict_error"); | |
4a9949d7 | 1281 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1282 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
1283 | The request may be retried */ | |
1284 | } | |
1285 | size = sizeof(struct arm_request) + sizeof(struct arm_response) + 3 * sizeof(*store) + sizeof(struct arm_request_response); /* maximum */ | |
54e6ecb2 | 1286 | req->data = kmalloc(size, GFP_ATOMIC); |
1da177e4 LT |
1287 | if (!(req->data)) { |
1288 | free_pending_request(req); | |
1289 | DBGMSG("arm_lock -> rcode_conflict_error"); | |
4a9949d7 | 1290 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1291 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. |
1292 | The request may be retried */ | |
1293 | } | |
1294 | req->free_data = 1; | |
1295 | arm_req_resp = (struct arm_request_response *)(req->data); | |
1296 | arm_req = (struct arm_request *)((byte_t *) (req->data) + | |
1297 | (sizeof | |
1298 | (struct | |
1299 | arm_request_response))); | |
1300 | arm_resp = | |
1301 | (struct arm_response *)((byte_t *) (arm_req) + | |
1302 | (sizeof(struct arm_request))); | |
1303 | buf1 = (byte_t *) arm_resp + sizeof(struct arm_response); | |
1304 | buf2 = buf1 + 2 * sizeof(*store); | |
1305 | if ((ext_tcode == EXTCODE_FETCH_ADD) || | |
1306 | (ext_tcode == EXTCODE_LITTLE_ADD)) { | |
1307 | arm_req->buffer_length = sizeof(*store); | |
1308 | memcpy(buf1, &data, sizeof(*store)); | |
1309 | ||
1310 | } else { | |
1311 | arm_req->buffer_length = 2 * sizeof(*store); | |
1312 | memcpy(buf1, &arg, sizeof(*store)); | |
1313 | memcpy(buf1 + sizeof(*store), &data, sizeof(*store)); | |
1314 | } | |
1315 | if (rcode == RCODE_COMPLETE) { | |
1316 | arm_resp->buffer_length = sizeof(*store); | |
1317 | memcpy(buf2, &old, sizeof(*store)); | |
1318 | } else { | |
1319 | arm_resp->buffer_length = 0; | |
1320 | } | |
1321 | req->file_info = fi; | |
1322 | req->req.type = RAW1394_REQ_ARM; | |
1323 | req->req.generation = get_hpsb_generation(host); | |
1324 | req->req.misc = ((((sizeof(*store)) << 16) & (0xFFFF0000)) | | |
1325 | (ARM_LOCK & 0xFF)); | |
1326 | req->req.tag = arm_addr->arm_tag; | |
1327 | req->req.recvb = arm_addr->recvb; | |
1328 | req->req.length = size; | |
1329 | arm_req->generation = req->req.generation; | |
1330 | arm_req->extended_transaction_code = ext_tcode; | |
1331 | arm_req->destination_offset = addr; | |
1332 | arm_req->source_nodeid = nodeid; | |
1333 | arm_req->destination_nodeid = host->node_id; | |
1334 | arm_req->tlabel = (flags >> 10) & 0x3f; | |
1335 | arm_req->tcode = (flags >> 4) & 0x0f; | |
1336 | arm_resp->response_code = rcode; | |
1337 | arm_req_resp->request = int2ptr((arm_addr->recvb) + | |
1338 | sizeof(struct | |
1339 | arm_request_response)); | |
1340 | arm_req_resp->response = | |
1341 | int2ptr((arm_addr->recvb) + | |
1342 | sizeof(struct arm_request_response) + | |
1343 | sizeof(struct arm_request)); | |
1344 | arm_req->buffer = | |
1345 | int2ptr((arm_addr->recvb) + | |
1346 | sizeof(struct arm_request_response) + | |
1347 | sizeof(struct arm_request) + | |
1348 | sizeof(struct arm_response)); | |
1349 | arm_resp->buffer = | |
1350 | int2ptr((arm_addr->recvb) + | |
1351 | sizeof(struct arm_request_response) + | |
1352 | sizeof(struct arm_request) + | |
1353 | sizeof(struct arm_response) + 2 * sizeof(*store)); | |
1354 | queue_complete_req(req); | |
1355 | } | |
4a9949d7 | 1356 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1357 | return (rcode); |
1358 | } | |
1359 | ||
1360 | static int arm_lock64(struct hpsb_host *host, int nodeid, octlet_t * store, | |
1361 | u64 addr, octlet_t data, octlet_t arg, int ext_tcode, | |
1362 | u16 flags) | |
1363 | { | |
4a9949d7 | 1364 | unsigned long irqflags; |
1da177e4 LT |
1365 | struct pending_request *req; |
1366 | struct host_info *hi; | |
1367 | struct file_info *fi = NULL; | |
1368 | struct list_head *entry; | |
1369 | struct arm_addr *arm_addr = NULL; | |
1370 | struct arm_request *arm_req = NULL; | |
1371 | struct arm_response *arm_resp = NULL; | |
1372 | int found = 0, size = 0, rcode = -1; | |
1373 | octlet_t old, new; | |
1374 | struct arm_request_response *arm_req_resp = NULL; | |
1375 | ||
1376 | if (((ext_tcode & 0xFF) == EXTCODE_FETCH_ADD) || | |
1377 | ((ext_tcode & 0xFF) == EXTCODE_LITTLE_ADD)) { | |
1378 | DBGMSG("arm_lock64 called by node: %X " | |
1379 | "addr: %4.4x %8.8x extcode: %2.2X data: %8.8X %8.8X ", | |
1380 | nodeid, (u16) ((addr >> 32) & 0xFFFF), | |
1381 | (u32) (addr & 0xFFFFFFFF), | |
1382 | ext_tcode & 0xFF, | |
1383 | (u32) ((be64_to_cpu(data) >> 32) & 0xFFFFFFFF), | |
1384 | (u32) (be64_to_cpu(data) & 0xFFFFFFFF)); | |
1385 | } else { | |
1386 | DBGMSG("arm_lock64 called by node: %X " | |
1387 | "addr: %4.4x %8.8x extcode: %2.2X data: %8.8X %8.8X arg: " | |
1388 | "%8.8X %8.8X ", | |
1389 | nodeid, (u16) ((addr >> 32) & 0xFFFF), | |
1390 | (u32) (addr & 0xFFFFFFFF), | |
1391 | ext_tcode & 0xFF, | |
1392 | (u32) ((be64_to_cpu(data) >> 32) & 0xFFFFFFFF), | |
1393 | (u32) (be64_to_cpu(data) & 0xFFFFFFFF), | |
1394 | (u32) ((be64_to_cpu(arg) >> 32) & 0xFFFFFFFF), | |
1395 | (u32) (be64_to_cpu(arg) & 0xFFFFFFFF)); | |
1396 | } | |
4a9949d7 | 1397 | spin_lock_irqsave(&host_info_lock, irqflags); |
1da177e4 LT |
1398 | hi = find_host_info(host); /* search addressentry in file_info's for host */ |
1399 | if (hi != NULL) { | |
1400 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
1401 | entry = fi->addr_list.next; | |
1402 | while (entry != &(fi->addr_list)) { | |
1403 | arm_addr = | |
1404 | list_entry(entry, struct arm_addr, | |
1405 | addr_list); | |
1406 | if (((arm_addr->start) <= (addr)) | |
1407 | && ((arm_addr->end) >= | |
1408 | (addr + sizeof(*store)))) { | |
1409 | found = 1; | |
1410 | break; | |
1411 | } | |
1412 | entry = entry->next; | |
1413 | } | |
1414 | if (found) { | |
1415 | break; | |
1416 | } | |
1417 | } | |
1418 | } | |
1419 | rcode = -1; | |
1420 | if (!found) { | |
1421 | printk(KERN_ERR | |
1422 | "raw1394: arm_lock64 FAILED addr_entry not found" | |
1423 | " -> rcode_address_error\n"); | |
4a9949d7 | 1424 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1425 | return (RCODE_ADDRESS_ERROR); |
1426 | } else { | |
1427 | DBGMSG("arm_lock64 addr_entry FOUND"); | |
1428 | } | |
1429 | if (rcode == -1) { | |
1430 | if (arm_addr->access_rights & ARM_LOCK) { | |
1431 | if (!(arm_addr->client_transactions & ARM_LOCK)) { | |
1432 | memcpy(&old, | |
1433 | (arm_addr->addr_space_buffer) + (addr - | |
1434 | (arm_addr-> | |
1435 | start)), | |
1436 | sizeof(old)); | |
1437 | switch (ext_tcode) { | |
1438 | case (EXTCODE_MASK_SWAP): | |
1439 | new = data | (old & ~arg); | |
1440 | break; | |
1441 | case (EXTCODE_COMPARE_SWAP): | |
1442 | if (old == arg) { | |
1443 | new = data; | |
1444 | } else { | |
1445 | new = old; | |
1446 | } | |
1447 | break; | |
1448 | case (EXTCODE_FETCH_ADD): | |
1449 | new = | |
1450 | cpu_to_be64(be64_to_cpu(data) + | |
1451 | be64_to_cpu(old)); | |
1452 | break; | |
1453 | case (EXTCODE_LITTLE_ADD): | |
1454 | new = | |
1455 | cpu_to_le64(le64_to_cpu(data) + | |
1456 | le64_to_cpu(old)); | |
1457 | break; | |
1458 | case (EXTCODE_BOUNDED_ADD): | |
1459 | if (old != arg) { | |
1460 | new = | |
1461 | cpu_to_be64(be64_to_cpu | |
1462 | (data) + | |
1463 | be64_to_cpu | |
1464 | (old)); | |
1465 | } else { | |
1466 | new = old; | |
1467 | } | |
1468 | break; | |
1469 | case (EXTCODE_WRAP_ADD): | |
1470 | if (old != arg) { | |
1471 | new = | |
1472 | cpu_to_be64(be64_to_cpu | |
1473 | (data) + | |
1474 | be64_to_cpu | |
1475 | (old)); | |
1476 | } else { | |
1477 | new = data; | |
1478 | } | |
1479 | break; | |
1480 | default: | |
1481 | printk(KERN_ERR | |
1482 | "raw1394: arm_lock64 FAILED " | |
1483 | "ext_tcode not allowed -> rcode_type_error\n"); | |
1484 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
1485 | break; | |
1486 | } /*switch */ | |
1487 | if (rcode == -1) { | |
1488 | DBGMSG | |
1489 | ("arm_lock64 -> (rcode_complete)"); | |
1490 | rcode = RCODE_COMPLETE; | |
1491 | memcpy(store, &old, sizeof(*store)); | |
1492 | memcpy((arm_addr->addr_space_buffer) + | |
1493 | (addr - (arm_addr->start)), | |
1494 | &new, sizeof(*store)); | |
1495 | } | |
1496 | } | |
1497 | } else { | |
1498 | rcode = RCODE_TYPE_ERROR; /* function not allowed */ | |
1499 | DBGMSG | |
1500 | ("arm_lock64 -> rcode_type_error (access denied)"); | |
1501 | } | |
1502 | } | |
1503 | if (arm_addr->notification_options & ARM_LOCK) { | |
1504 | byte_t *buf1, *buf2; | |
1505 | DBGMSG("arm_lock64 -> entering notification-section"); | |
54e6ecb2 | 1506 | req = __alloc_pending_request(GFP_ATOMIC); |
1da177e4 | 1507 | if (!req) { |
4a9949d7 | 1508 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1509 | DBGMSG("arm_lock64 -> rcode_conflict_error"); |
1510 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. | |
1511 | The request may be retried */ | |
1512 | } | |
1513 | size = sizeof(struct arm_request) + sizeof(struct arm_response) + 3 * sizeof(*store) + sizeof(struct arm_request_response); /* maximum */ | |
54e6ecb2 | 1514 | req->data = kmalloc(size, GFP_ATOMIC); |
1da177e4 LT |
1515 | if (!(req->data)) { |
1516 | free_pending_request(req); | |
4a9949d7 | 1517 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1518 | DBGMSG("arm_lock64 -> rcode_conflict_error"); |
1519 | return (RCODE_CONFLICT_ERROR); /* A resource conflict was detected. | |
1520 | The request may be retried */ | |
1521 | } | |
1522 | req->free_data = 1; | |
1523 | arm_req_resp = (struct arm_request_response *)(req->data); | |
1524 | arm_req = (struct arm_request *)((byte_t *) (req->data) + | |
1525 | (sizeof | |
1526 | (struct | |
1527 | arm_request_response))); | |
1528 | arm_resp = | |
1529 | (struct arm_response *)((byte_t *) (arm_req) + | |
1530 | (sizeof(struct arm_request))); | |
1531 | buf1 = (byte_t *) arm_resp + sizeof(struct arm_response); | |
1532 | buf2 = buf1 + 2 * sizeof(*store); | |
1533 | if ((ext_tcode == EXTCODE_FETCH_ADD) || | |
1534 | (ext_tcode == EXTCODE_LITTLE_ADD)) { | |
1535 | arm_req->buffer_length = sizeof(*store); | |
1536 | memcpy(buf1, &data, sizeof(*store)); | |
1537 | ||
1538 | } else { | |
1539 | arm_req->buffer_length = 2 * sizeof(*store); | |
1540 | memcpy(buf1, &arg, sizeof(*store)); | |
1541 | memcpy(buf1 + sizeof(*store), &data, sizeof(*store)); | |
1542 | } | |
1543 | if (rcode == RCODE_COMPLETE) { | |
1544 | arm_resp->buffer_length = sizeof(*store); | |
1545 | memcpy(buf2, &old, sizeof(*store)); | |
1546 | } else { | |
1547 | arm_resp->buffer_length = 0; | |
1548 | } | |
1549 | req->file_info = fi; | |
1550 | req->req.type = RAW1394_REQ_ARM; | |
1551 | req->req.generation = get_hpsb_generation(host); | |
1552 | req->req.misc = ((((sizeof(*store)) << 16) & (0xFFFF0000)) | | |
1553 | (ARM_LOCK & 0xFF)); | |
1554 | req->req.tag = arm_addr->arm_tag; | |
1555 | req->req.recvb = arm_addr->recvb; | |
1556 | req->req.length = size; | |
1557 | arm_req->generation = req->req.generation; | |
1558 | arm_req->extended_transaction_code = ext_tcode; | |
1559 | arm_req->destination_offset = addr; | |
1560 | arm_req->source_nodeid = nodeid; | |
1561 | arm_req->destination_nodeid = host->node_id; | |
1562 | arm_req->tlabel = (flags >> 10) & 0x3f; | |
1563 | arm_req->tcode = (flags >> 4) & 0x0f; | |
1564 | arm_resp->response_code = rcode; | |
1565 | arm_req_resp->request = int2ptr((arm_addr->recvb) + | |
1566 | sizeof(struct | |
1567 | arm_request_response)); | |
1568 | arm_req_resp->response = | |
1569 | int2ptr((arm_addr->recvb) + | |
1570 | sizeof(struct arm_request_response) + | |
1571 | sizeof(struct arm_request)); | |
1572 | arm_req->buffer = | |
1573 | int2ptr((arm_addr->recvb) + | |
1574 | sizeof(struct arm_request_response) + | |
1575 | sizeof(struct arm_request) + | |
1576 | sizeof(struct arm_response)); | |
1577 | arm_resp->buffer = | |
1578 | int2ptr((arm_addr->recvb) + | |
1579 | sizeof(struct arm_request_response) + | |
1580 | sizeof(struct arm_request) + | |
1581 | sizeof(struct arm_response) + 2 * sizeof(*store)); | |
1582 | queue_complete_req(req); | |
1583 | } | |
4a9949d7 | 1584 | spin_unlock_irqrestore(&host_info_lock, irqflags); |
1da177e4 LT |
1585 | return (rcode); |
1586 | } | |
1587 | ||
1588 | static int arm_register(struct file_info *fi, struct pending_request *req) | |
1589 | { | |
1590 | int retval; | |
1591 | struct arm_addr *addr; | |
1592 | struct host_info *hi; | |
1593 | struct file_info *fi_hlp = NULL; | |
1594 | struct list_head *entry; | |
1595 | struct arm_addr *arm_addr = NULL; | |
1596 | int same_host, another_host; | |
1597 | unsigned long flags; | |
1598 | ||
1599 | DBGMSG("arm_register called " | |
1600 | "addr(Offset): %8.8x %8.8x length: %u " | |
1601 | "rights: %2.2X notify: %2.2X " | |
1602 | "max_blk_len: %4.4X", | |
1603 | (u32) ((req->req.address >> 32) & 0xFFFF), | |
1604 | (u32) (req->req.address & 0xFFFFFFFF), | |
1605 | req->req.length, ((req->req.misc >> 8) & 0xFF), | |
1606 | (req->req.misc & 0xFF), ((req->req.misc >> 16) & 0xFFFF)); | |
1607 | /* check addressrange */ | |
1608 | if ((((req->req.address) & ~(0xFFFFFFFFFFFFULL)) != 0) || | |
1609 | (((req->req.address + req->req.length) & ~(0xFFFFFFFFFFFFULL)) != | |
1610 | 0)) { | |
1611 | req->req.length = 0; | |
1612 | return (-EINVAL); | |
1613 | } | |
1614 | /* addr-list-entry for fileinfo */ | |
e94b1766 | 1615 | addr = kmalloc(sizeof(*addr), GFP_KERNEL); |
1da177e4 LT |
1616 | if (!addr) { |
1617 | req->req.length = 0; | |
1618 | return (-ENOMEM); | |
1619 | } | |
1620 | /* allocation of addr_space_buffer */ | |
8551158a | 1621 | addr->addr_space_buffer = vmalloc(req->req.length); |
1da177e4 LT |
1622 | if (!(addr->addr_space_buffer)) { |
1623 | kfree(addr); | |
1624 | req->req.length = 0; | |
1625 | return (-ENOMEM); | |
1626 | } | |
1627 | /* initialization of addr_space_buffer */ | |
1628 | if ((req->req.sendb) == (unsigned long)NULL) { | |
1629 | /* init: set 0 */ | |
1630 | memset(addr->addr_space_buffer, 0, req->req.length); | |
1631 | } else { | |
1632 | /* init: user -> kernel */ | |
1633 | if (copy_from_user | |
1634 | (addr->addr_space_buffer, int2ptr(req->req.sendb), | |
1635 | req->req.length)) { | |
1636 | vfree(addr->addr_space_buffer); | |
1637 | kfree(addr); | |
1638 | return (-EFAULT); | |
1639 | } | |
1640 | } | |
1641 | INIT_LIST_HEAD(&addr->addr_list); | |
1642 | addr->arm_tag = req->req.tag; | |
1643 | addr->start = req->req.address; | |
1644 | addr->end = req->req.address + req->req.length; | |
1645 | addr->access_rights = (u8) (req->req.misc & 0x0F); | |
1646 | addr->notification_options = (u8) ((req->req.misc >> 4) & 0x0F); | |
1647 | addr->client_transactions = (u8) ((req->req.misc >> 8) & 0x0F); | |
1648 | addr->access_rights |= addr->client_transactions; | |
1649 | addr->notification_options |= addr->client_transactions; | |
1650 | addr->recvb = req->req.recvb; | |
1651 | addr->rec_length = (u16) ((req->req.misc >> 16) & 0xFFFF); | |
3253b669 | 1652 | |
1da177e4 LT |
1653 | spin_lock_irqsave(&host_info_lock, flags); |
1654 | hi = find_host_info(fi->host); | |
1655 | same_host = 0; | |
1656 | another_host = 0; | |
1657 | /* same host with address-entry containing same addressrange ? */ | |
1658 | list_for_each_entry(fi_hlp, &hi->file_info_list, list) { | |
1659 | entry = fi_hlp->addr_list.next; | |
1660 | while (entry != &(fi_hlp->addr_list)) { | |
1661 | arm_addr = | |
1662 | list_entry(entry, struct arm_addr, addr_list); | |
1663 | if ((arm_addr->start == addr->start) | |
1664 | && (arm_addr->end == addr->end)) { | |
1665 | DBGMSG("same host ownes same " | |
1666 | "addressrange -> EALREADY"); | |
1667 | same_host = 1; | |
1668 | break; | |
1669 | } | |
1670 | entry = entry->next; | |
1671 | } | |
1672 | if (same_host) { | |
1673 | break; | |
1674 | } | |
1675 | } | |
1676 | if (same_host) { | |
1677 | /* addressrange occupied by same host */ | |
3253b669 | 1678 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
1679 | vfree(addr->addr_space_buffer); |
1680 | kfree(addr); | |
1da177e4 LT |
1681 | return (-EALREADY); |
1682 | } | |
1683 | /* another host with valid address-entry containing same addressrange */ | |
1684 | list_for_each_entry(hi, &host_info_list, list) { | |
1685 | if (hi->host != fi->host) { | |
1686 | list_for_each_entry(fi_hlp, &hi->file_info_list, list) { | |
1687 | entry = fi_hlp->addr_list.next; | |
1688 | while (entry != &(fi_hlp->addr_list)) { | |
1689 | arm_addr = | |
1690 | list_entry(entry, struct arm_addr, | |
1691 | addr_list); | |
1692 | if ((arm_addr->start == addr->start) | |
1693 | && (arm_addr->end == addr->end)) { | |
1694 | DBGMSG | |
1695 | ("another host ownes same " | |
1696 | "addressrange"); | |
1697 | another_host = 1; | |
1698 | break; | |
1699 | } | |
1700 | entry = entry->next; | |
1701 | } | |
1702 | if (another_host) { | |
1703 | break; | |
1704 | } | |
1705 | } | |
1706 | } | |
1707 | } | |
3253b669 SR |
1708 | spin_unlock_irqrestore(&host_info_lock, flags); |
1709 | ||
1da177e4 LT |
1710 | if (another_host) { |
1711 | DBGMSG("another hosts entry is valid -> SUCCESS"); | |
1712 | if (copy_to_user(int2ptr(req->req.recvb), | |
1713 | &addr->start, sizeof(u64))) { | |
1714 | printk(KERN_ERR "raw1394: arm_register failed " | |
1715 | " address-range-entry is invalid -> EFAULT !!!\n"); | |
1716 | vfree(addr->addr_space_buffer); | |
1717 | kfree(addr); | |
1da177e4 LT |
1718 | return (-EFAULT); |
1719 | } | |
1720 | free_pending_request(req); /* immediate success or fail */ | |
1721 | /* INSERT ENTRY */ | |
3253b669 | 1722 | spin_lock_irqsave(&host_info_lock, flags); |
1da177e4 LT |
1723 | list_add_tail(&addr->addr_list, &fi->addr_list); |
1724 | spin_unlock_irqrestore(&host_info_lock, flags); | |
883b97ea | 1725 | return 0; |
1da177e4 LT |
1726 | } |
1727 | retval = | |
1728 | hpsb_register_addrspace(&raw1394_highlevel, fi->host, &arm_ops, | |
1729 | req->req.address, | |
1730 | req->req.address + req->req.length); | |
1731 | if (retval) { | |
1732 | /* INSERT ENTRY */ | |
3253b669 | 1733 | spin_lock_irqsave(&host_info_lock, flags); |
1da177e4 | 1734 | list_add_tail(&addr->addr_list, &fi->addr_list); |
3253b669 | 1735 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
1736 | } else { |
1737 | DBGMSG("arm_register failed errno: %d \n", retval); | |
1738 | vfree(addr->addr_space_buffer); | |
1739 | kfree(addr); | |
1da177e4 LT |
1740 | return (-EALREADY); |
1741 | } | |
1da177e4 | 1742 | free_pending_request(req); /* immediate success or fail */ |
883b97ea | 1743 | return 0; |
1da177e4 LT |
1744 | } |
1745 | ||
1746 | static int arm_unregister(struct file_info *fi, struct pending_request *req) | |
1747 | { | |
1748 | int found = 0; | |
1749 | int retval = 0; | |
1750 | struct list_head *entry; | |
1751 | struct arm_addr *addr = NULL; | |
1752 | struct host_info *hi; | |
1753 | struct file_info *fi_hlp = NULL; | |
1754 | struct arm_addr *arm_addr = NULL; | |
1755 | int another_host; | |
1756 | unsigned long flags; | |
1757 | ||
1758 | DBGMSG("arm_Unregister called addr(Offset): " | |
1759 | "%8.8x %8.8x", | |
1760 | (u32) ((req->req.address >> 32) & 0xFFFF), | |
1761 | (u32) (req->req.address & 0xFFFFFFFF)); | |
1762 | spin_lock_irqsave(&host_info_lock, flags); | |
1763 | /* get addr */ | |
1764 | entry = fi->addr_list.next; | |
1765 | while (entry != &(fi->addr_list)) { | |
1766 | addr = list_entry(entry, struct arm_addr, addr_list); | |
1767 | if (addr->start == req->req.address) { | |
1768 | found = 1; | |
1769 | break; | |
1770 | } | |
1771 | entry = entry->next; | |
1772 | } | |
1773 | if (!found) { | |
1774 | DBGMSG("arm_Unregister addr not found"); | |
1775 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1776 | return (-EINVAL); | |
1777 | } | |
1778 | DBGMSG("arm_Unregister addr found"); | |
1779 | another_host = 0; | |
1780 | /* another host with valid address-entry containing | |
1781 | same addressrange */ | |
1782 | list_for_each_entry(hi, &host_info_list, list) { | |
1783 | if (hi->host != fi->host) { | |
1784 | list_for_each_entry(fi_hlp, &hi->file_info_list, list) { | |
1785 | entry = fi_hlp->addr_list.next; | |
1786 | while (entry != &(fi_hlp->addr_list)) { | |
1787 | arm_addr = list_entry(entry, | |
1788 | struct arm_addr, | |
1789 | addr_list); | |
1790 | if (arm_addr->start == addr->start) { | |
1791 | DBGMSG("another host ownes " | |
1792 | "same addressrange"); | |
1793 | another_host = 1; | |
1794 | break; | |
1795 | } | |
1796 | entry = entry->next; | |
1797 | } | |
1798 | if (another_host) { | |
1799 | break; | |
1800 | } | |
1801 | } | |
1802 | } | |
1803 | } | |
1804 | if (another_host) { | |
1805 | DBGMSG("delete entry from list -> success"); | |
1806 | list_del(&addr->addr_list); | |
3253b669 | 1807 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
1808 | vfree(addr->addr_space_buffer); |
1809 | kfree(addr); | |
1810 | free_pending_request(req); /* immediate success or fail */ | |
883b97ea | 1811 | return 0; |
1da177e4 LT |
1812 | } |
1813 | retval = | |
1814 | hpsb_unregister_addrspace(&raw1394_highlevel, fi->host, | |
1815 | addr->start); | |
1816 | if (!retval) { | |
1817 | printk(KERN_ERR "raw1394: arm_Unregister failed -> EINVAL\n"); | |
1818 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1819 | return (-EINVAL); | |
1820 | } | |
1821 | DBGMSG("delete entry from list -> success"); | |
1822 | list_del(&addr->addr_list); | |
1823 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1824 | vfree(addr->addr_space_buffer); | |
1825 | kfree(addr); | |
1826 | free_pending_request(req); /* immediate success or fail */ | |
883b97ea | 1827 | return 0; |
1da177e4 LT |
1828 | } |
1829 | ||
1830 | /* Copy data from ARM buffer(s) to user buffer. */ | |
1831 | static int arm_get_buf(struct file_info *fi, struct pending_request *req) | |
1832 | { | |
1833 | struct arm_addr *arm_addr = NULL; | |
1834 | unsigned long flags; | |
1835 | unsigned long offset; | |
1836 | ||
1837 | struct list_head *entry; | |
1838 | ||
1839 | DBGMSG("arm_get_buf " | |
1840 | "addr(Offset): %04X %08X length: %u", | |
1841 | (u32) ((req->req.address >> 32) & 0xFFFF), | |
1842 | (u32) (req->req.address & 0xFFFFFFFF), (u32) req->req.length); | |
1843 | ||
1844 | spin_lock_irqsave(&host_info_lock, flags); | |
1845 | entry = fi->addr_list.next; | |
1846 | while (entry != &(fi->addr_list)) { | |
1847 | arm_addr = list_entry(entry, struct arm_addr, addr_list); | |
1848 | if ((arm_addr->start <= req->req.address) && | |
1849 | (arm_addr->end > req->req.address)) { | |
1850 | if (req->req.address + req->req.length <= arm_addr->end) { | |
1851 | offset = req->req.address - arm_addr->start; | |
3253b669 | 1852 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
1853 | |
1854 | DBGMSG | |
1855 | ("arm_get_buf copy_to_user( %08X, %p, %u )", | |
1856 | (u32) req->req.recvb, | |
1857 | arm_addr->addr_space_buffer + offset, | |
1858 | (u32) req->req.length); | |
1da177e4 LT |
1859 | if (copy_to_user |
1860 | (int2ptr(req->req.recvb), | |
1861 | arm_addr->addr_space_buffer + offset, | |
3253b669 | 1862 | req->req.length)) |
1da177e4 | 1863 | return (-EFAULT); |
1da177e4 | 1864 | |
1da177e4 LT |
1865 | /* We have to free the request, because we |
1866 | * queue no response, and therefore nobody | |
1867 | * will free it. */ | |
1868 | free_pending_request(req); | |
883b97ea | 1869 | return 0; |
1da177e4 LT |
1870 | } else { |
1871 | DBGMSG("arm_get_buf request exceeded mapping"); | |
1872 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1873 | return (-EINVAL); | |
1874 | } | |
1875 | } | |
1876 | entry = entry->next; | |
1877 | } | |
1878 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1879 | return (-EINVAL); | |
1880 | } | |
1881 | ||
1882 | /* Copy data from user buffer to ARM buffer(s). */ | |
1883 | static int arm_set_buf(struct file_info *fi, struct pending_request *req) | |
1884 | { | |
1885 | struct arm_addr *arm_addr = NULL; | |
1886 | unsigned long flags; | |
1887 | unsigned long offset; | |
1888 | ||
1889 | struct list_head *entry; | |
1890 | ||
1891 | DBGMSG("arm_set_buf " | |
1892 | "addr(Offset): %04X %08X length: %u", | |
1893 | (u32) ((req->req.address >> 32) & 0xFFFF), | |
1894 | (u32) (req->req.address & 0xFFFFFFFF), (u32) req->req.length); | |
1895 | ||
1896 | spin_lock_irqsave(&host_info_lock, flags); | |
1897 | entry = fi->addr_list.next; | |
1898 | while (entry != &(fi->addr_list)) { | |
1899 | arm_addr = list_entry(entry, struct arm_addr, addr_list); | |
1900 | if ((arm_addr->start <= req->req.address) && | |
1901 | (arm_addr->end > req->req.address)) { | |
1902 | if (req->req.address + req->req.length <= arm_addr->end) { | |
1903 | offset = req->req.address - arm_addr->start; | |
3253b669 | 1904 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
1905 | |
1906 | DBGMSG | |
1907 | ("arm_set_buf copy_from_user( %p, %08X, %u )", | |
1908 | arm_addr->addr_space_buffer + offset, | |
1909 | (u32) req->req.sendb, | |
1910 | (u32) req->req.length); | |
1da177e4 LT |
1911 | if (copy_from_user |
1912 | (arm_addr->addr_space_buffer + offset, | |
1913 | int2ptr(req->req.sendb), | |
3253b669 | 1914 | req->req.length)) |
1da177e4 | 1915 | return (-EFAULT); |
1da177e4 | 1916 | |
3253b669 SR |
1917 | /* We have to free the request, because we |
1918 | * queue no response, and therefore nobody | |
1919 | * will free it. */ | |
1920 | free_pending_request(req); | |
883b97ea | 1921 | return 0; |
1da177e4 LT |
1922 | } else { |
1923 | DBGMSG("arm_set_buf request exceeded mapping"); | |
1924 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1925 | return (-EINVAL); | |
1926 | } | |
1927 | } | |
1928 | entry = entry->next; | |
1929 | } | |
1930 | spin_unlock_irqrestore(&host_info_lock, flags); | |
1931 | return (-EINVAL); | |
1932 | } | |
1933 | ||
1934 | static int reset_notification(struct file_info *fi, struct pending_request *req) | |
1935 | { | |
1936 | DBGMSG("reset_notification called - switch %s ", | |
1937 | (req->req.misc == RAW1394_NOTIFY_OFF) ? "OFF" : "ON"); | |
1938 | if ((req->req.misc == RAW1394_NOTIFY_OFF) || | |
1939 | (req->req.misc == RAW1394_NOTIFY_ON)) { | |
1940 | fi->notification = (u8) req->req.misc; | |
1941 | free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ | |
883b97ea | 1942 | return 0; |
1da177e4 LT |
1943 | } |
1944 | /* error EINVAL (22) invalid argument */ | |
1945 | return (-EINVAL); | |
1946 | } | |
1947 | ||
1948 | static int write_phypacket(struct file_info *fi, struct pending_request *req) | |
1949 | { | |
1950 | struct hpsb_packet *packet = NULL; | |
1951 | int retval = 0; | |
1952 | quadlet_t data; | |
4a9949d7 | 1953 | unsigned long flags; |
1da177e4 LT |
1954 | |
1955 | data = be32_to_cpu((u32) req->req.sendb); | |
1956 | DBGMSG("write_phypacket called - quadlet 0x%8.8x ", data); | |
1957 | packet = hpsb_make_phypacket(fi->host, data); | |
1958 | if (!packet) | |
1959 | return -ENOMEM; | |
1960 | req->req.length = 0; | |
1961 | req->packet = packet; | |
1962 | hpsb_set_packet_complete_task(packet, | |
1963 | (void (*)(void *))queue_complete_cb, req); | |
4a9949d7 | 1964 | spin_lock_irqsave(&fi->reqlists_lock, flags); |
1da177e4 | 1965 | list_add_tail(&req->list, &fi->req_pending); |
4a9949d7 | 1966 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); |
1da177e4 LT |
1967 | packet->generation = req->req.generation; |
1968 | retval = hpsb_send_packet(packet); | |
1969 | DBGMSG("write_phypacket send_packet called => retval: %d ", retval); | |
1970 | if (retval < 0) { | |
1971 | req->req.error = RAW1394_ERROR_SEND_ERROR; | |
1972 | req->req.length = 0; | |
1973 | queue_complete_req(req); | |
1974 | } | |
883b97ea | 1975 | return 0; |
1da177e4 LT |
1976 | } |
1977 | ||
1978 | static int get_config_rom(struct file_info *fi, struct pending_request *req) | |
1979 | { | |
883b97ea | 1980 | int ret = 0; |
e94b1766 | 1981 | quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL); |
1da177e4 LT |
1982 | int status; |
1983 | ||
1984 | if (!data) | |
1985 | return -ENOMEM; | |
1986 | ||
1987 | status = | |
1988 | csr1212_read(fi->host->csr.rom, CSR1212_CONFIG_ROM_SPACE_OFFSET, | |
1989 | data, req->req.length); | |
1990 | if (copy_to_user(int2ptr(req->req.recvb), data, req->req.length)) | |
1991 | ret = -EFAULT; | |
1992 | if (copy_to_user | |
1993 | (int2ptr(req->req.tag), &fi->host->csr.rom->cache_head->len, | |
1994 | sizeof(fi->host->csr.rom->cache_head->len))) | |
1995 | ret = -EFAULT; | |
1996 | if (copy_to_user(int2ptr(req->req.address), &fi->host->csr.generation, | |
1997 | sizeof(fi->host->csr.generation))) | |
1998 | ret = -EFAULT; | |
1999 | if (copy_to_user(int2ptr(req->req.sendb), &status, sizeof(status))) | |
2000 | ret = -EFAULT; | |
2001 | kfree(data); | |
2002 | if (ret >= 0) { | |
2003 | free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ | |
2004 | } | |
2005 | return ret; | |
2006 | } | |
2007 | ||
2008 | static int update_config_rom(struct file_info *fi, struct pending_request *req) | |
2009 | { | |
883b97ea | 2010 | int ret = 0; |
e94b1766 | 2011 | quadlet_t *data = kmalloc(req->req.length, GFP_KERNEL); |
1da177e4 LT |
2012 | if (!data) |
2013 | return -ENOMEM; | |
2014 | if (copy_from_user(data, int2ptr(req->req.sendb), req->req.length)) { | |
2015 | ret = -EFAULT; | |
2016 | } else { | |
2017 | int status = hpsb_update_config_rom(fi->host, | |
2018 | data, req->req.length, | |
2019 | (unsigned char)req->req. | |
2020 | misc); | |
2021 | if (copy_to_user | |
2022 | (int2ptr(req->req.recvb), &status, sizeof(status))) | |
2023 | ret = -ENOMEM; | |
2024 | } | |
2025 | kfree(data); | |
2026 | if (ret >= 0) { | |
2027 | free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ | |
2028 | fi->cfgrom_upd = 1; | |
2029 | } | |
2030 | return ret; | |
2031 | } | |
2032 | ||
2033 | static int modify_config_rom(struct file_info *fi, struct pending_request *req) | |
2034 | { | |
2035 | struct csr1212_keyval *kv; | |
2036 | struct csr1212_csr_rom_cache *cache; | |
2037 | struct csr1212_dentry *dentry; | |
2038 | u32 dr; | |
2039 | int ret = 0; | |
2040 | ||
2041 | if (req->req.misc == ~0) { | |
2042 | if (req->req.length == 0) | |
2043 | return -EINVAL; | |
2044 | ||
2045 | /* Find an unused slot */ | |
2046 | for (dr = 0; | |
2047 | dr < RAW1394_MAX_USER_CSR_DIRS && fi->csr1212_dirs[dr]; | |
2048 | dr++) ; | |
2049 | ||
2050 | if (dr == RAW1394_MAX_USER_CSR_DIRS) | |
2051 | return -ENOMEM; | |
2052 | ||
2053 | fi->csr1212_dirs[dr] = | |
2054 | csr1212_new_directory(CSR1212_KV_ID_VENDOR); | |
2055 | if (!fi->csr1212_dirs[dr]) | |
2056 | return -ENOMEM; | |
2057 | } else { | |
2058 | dr = req->req.misc; | |
2059 | if (!fi->csr1212_dirs[dr]) | |
2060 | return -EINVAL; | |
2061 | ||
2062 | /* Delete old stuff */ | |
2063 | for (dentry = | |
2064 | fi->csr1212_dirs[dr]->value.directory.dentries_head; | |
2065 | dentry; dentry = dentry->next) { | |
2066 | csr1212_detach_keyval_from_directory(fi->host->csr.rom-> | |
2067 | root_kv, | |
2068 | dentry->kv); | |
2069 | } | |
2070 | ||
2071 | if (req->req.length == 0) { | |
2072 | csr1212_release_keyval(fi->csr1212_dirs[dr]); | |
2073 | fi->csr1212_dirs[dr] = NULL; | |
2074 | ||
2075 | hpsb_update_config_rom_image(fi->host); | |
2076 | free_pending_request(req); | |
883b97ea | 2077 | return 0; |
1da177e4 LT |
2078 | } |
2079 | } | |
2080 | ||
2081 | cache = csr1212_rom_cache_malloc(0, req->req.length); | |
2082 | if (!cache) { | |
2083 | csr1212_release_keyval(fi->csr1212_dirs[dr]); | |
2084 | fi->csr1212_dirs[dr] = NULL; | |
2085 | return -ENOMEM; | |
2086 | } | |
2087 | ||
8551158a | 2088 | cache->filled_head = kmalloc(sizeof(*cache->filled_head), GFP_KERNEL); |
1da177e4 LT |
2089 | if (!cache->filled_head) { |
2090 | csr1212_release_keyval(fi->csr1212_dirs[dr]); | |
2091 | fi->csr1212_dirs[dr] = NULL; | |
2092 | CSR1212_FREE(cache); | |
2093 | return -ENOMEM; | |
2094 | } | |
2095 | cache->filled_tail = cache->filled_head; | |
2096 | ||
2097 | if (copy_from_user(cache->data, int2ptr(req->req.sendb), | |
2098 | req->req.length)) { | |
2099 | csr1212_release_keyval(fi->csr1212_dirs[dr]); | |
2100 | fi->csr1212_dirs[dr] = NULL; | |
1da177e4 LT |
2101 | ret = -EFAULT; |
2102 | } else { | |
2103 | cache->len = req->req.length; | |
2104 | cache->filled_head->offset_start = 0; | |
2105 | cache->filled_head->offset_end = cache->size - 1; | |
2106 | ||
2107 | cache->layout_head = cache->layout_tail = fi->csr1212_dirs[dr]; | |
2108 | ||
2109 | ret = CSR1212_SUCCESS; | |
2110 | /* parse all the items */ | |
2111 | for (kv = cache->layout_head; ret == CSR1212_SUCCESS && kv; | |
2112 | kv = kv->next) { | |
2113 | ret = csr1212_parse_keyval(kv, cache); | |
2114 | } | |
2115 | ||
2116 | /* attach top level items to the root directory */ | |
2117 | for (dentry = | |
2118 | fi->csr1212_dirs[dr]->value.directory.dentries_head; | |
2119 | ret == CSR1212_SUCCESS && dentry; dentry = dentry->next) { | |
2120 | ret = | |
2121 | csr1212_attach_keyval_to_directory(fi->host->csr. | |
2122 | rom->root_kv, | |
2123 | dentry->kv); | |
2124 | } | |
2125 | ||
2126 | if (ret == CSR1212_SUCCESS) { | |
2127 | ret = hpsb_update_config_rom_image(fi->host); | |
2128 | ||
2129 | if (ret >= 0 && copy_to_user(int2ptr(req->req.recvb), | |
2130 | &dr, sizeof(dr))) { | |
2131 | ret = -ENOMEM; | |
2132 | } | |
2133 | } | |
2134 | } | |
2135 | kfree(cache->filled_head); | |
b12479dd | 2136 | CSR1212_FREE(cache); |
1da177e4 LT |
2137 | |
2138 | if (ret >= 0) { | |
2139 | /* we have to free the request, because we queue no response, | |
2140 | * and therefore nobody will free it */ | |
2141 | free_pending_request(req); | |
883b97ea | 2142 | return 0; |
1da177e4 LT |
2143 | } else { |
2144 | for (dentry = | |
2145 | fi->csr1212_dirs[dr]->value.directory.dentries_head; | |
2146 | dentry; dentry = dentry->next) { | |
2147 | csr1212_detach_keyval_from_directory(fi->host->csr.rom-> | |
2148 | root_kv, | |
2149 | dentry->kv); | |
2150 | } | |
2151 | csr1212_release_keyval(fi->csr1212_dirs[dr]); | |
2152 | fi->csr1212_dirs[dr] = NULL; | |
2153 | return ret; | |
2154 | } | |
2155 | } | |
2156 | ||
2157 | static int state_connected(struct file_info *fi, struct pending_request *req) | |
2158 | { | |
2159 | int node = req->req.address >> 48; | |
2160 | ||
2161 | req->req.error = RAW1394_ERROR_NONE; | |
2162 | ||
2163 | switch (req->req.type) { | |
2164 | ||
2165 | case RAW1394_REQ_ECHO: | |
2166 | queue_complete_req(req); | |
883b97ea | 2167 | return 0; |
1da177e4 | 2168 | |
1da177e4 LT |
2169 | case RAW1394_REQ_ARM_REGISTER: |
2170 | return arm_register(fi, req); | |
2171 | ||
2172 | case RAW1394_REQ_ARM_UNREGISTER: | |
2173 | return arm_unregister(fi, req); | |
2174 | ||
2175 | case RAW1394_REQ_ARM_SET_BUF: | |
2176 | return arm_set_buf(fi, req); | |
2177 | ||
2178 | case RAW1394_REQ_ARM_GET_BUF: | |
2179 | return arm_get_buf(fi, req); | |
2180 | ||
2181 | case RAW1394_REQ_RESET_NOTIFY: | |
2182 | return reset_notification(fi, req); | |
2183 | ||
53c96b41 | 2184 | case RAW1394_REQ_ISO_SEND: |
1da177e4 | 2185 | case RAW1394_REQ_ISO_LISTEN: |
53c96b41 SR |
2186 | printk(KERN_DEBUG "raw1394: old iso ABI has been removed\n"); |
2187 | req->req.error = RAW1394_ERROR_COMPAT; | |
2188 | req->req.misc = RAW1394_KERNELAPI_VERSION; | |
2189 | queue_complete_req(req); | |
883b97ea | 2190 | return 0; |
1da177e4 LT |
2191 | |
2192 | case RAW1394_REQ_FCP_LISTEN: | |
2193 | handle_fcp_listen(fi, req); | |
883b97ea | 2194 | return 0; |
1da177e4 LT |
2195 | |
2196 | case RAW1394_REQ_RESET_BUS: | |
2197 | if (req->req.misc == RAW1394_LONG_RESET) { | |
2198 | DBGMSG("busreset called (type: LONG)"); | |
2199 | hpsb_reset_bus(fi->host, LONG_RESET); | |
2200 | free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ | |
883b97ea | 2201 | return 0; |
1da177e4 LT |
2202 | } |
2203 | if (req->req.misc == RAW1394_SHORT_RESET) { | |
2204 | DBGMSG("busreset called (type: SHORT)"); | |
2205 | hpsb_reset_bus(fi->host, SHORT_RESET); | |
2206 | free_pending_request(req); /* we have to free the request, because we queue no response, and therefore nobody will free it */ | |
883b97ea | 2207 | return 0; |
1da177e4 LT |
2208 | } |
2209 | /* error EINVAL (22) invalid argument */ | |
2210 | return (-EINVAL); | |
2211 | case RAW1394_REQ_GET_ROM: | |
2212 | return get_config_rom(fi, req); | |
2213 | ||
2214 | case RAW1394_REQ_UPDATE_ROM: | |
2215 | return update_config_rom(fi, req); | |
2216 | ||
2217 | case RAW1394_REQ_MODIFY_ROM: | |
2218 | return modify_config_rom(fi, req); | |
2219 | } | |
2220 | ||
2221 | if (req->req.generation != get_hpsb_generation(fi->host)) { | |
2222 | req->req.error = RAW1394_ERROR_GENERATION; | |
2223 | req->req.generation = get_hpsb_generation(fi->host); | |
2224 | req->req.length = 0; | |
2225 | queue_complete_req(req); | |
883b97ea | 2226 | return 0; |
1da177e4 LT |
2227 | } |
2228 | ||
2229 | switch (req->req.type) { | |
2230 | case RAW1394_REQ_PHYPACKET: | |
2231 | return write_phypacket(fi, req); | |
2232 | case RAW1394_REQ_ASYNC_SEND: | |
2233 | return handle_async_send(fi, req); | |
2234 | } | |
2235 | ||
2236 | if (req->req.length == 0) { | |
2237 | req->req.error = RAW1394_ERROR_INVALID_ARG; | |
2238 | queue_complete_req(req); | |
883b97ea | 2239 | return 0; |
1da177e4 LT |
2240 | } |
2241 | ||
2242 | return handle_async_request(fi, req, node); | |
2243 | } | |
2244 | ||
2245 | static ssize_t raw1394_write(struct file *file, const char __user * buffer, | |
2246 | size_t count, loff_t * offset_is_ignored) | |
2247 | { | |
2248 | struct file_info *fi = (struct file_info *)file->private_data; | |
2249 | struct pending_request *req; | |
883b97ea | 2250 | ssize_t retval = -EBADFD; |
1da177e4 | 2251 | |
4bc32c4d | 2252 | #ifdef CONFIG_COMPAT |
7597028a BC |
2253 | if (count == sizeof(struct compat_raw1394_req) && |
2254 | sizeof(struct compat_raw1394_req) != | |
2255 | sizeof(struct raw1394_request)) { | |
4bc32c4d | 2256 | buffer = raw1394_compat_write(buffer); |
42169688 SR |
2257 | if (IS_ERR((__force void *)buffer)) |
2258 | return PTR_ERR((__force void *)buffer); | |
4bc32c4d AK |
2259 | } else |
2260 | #endif | |
1da177e4 LT |
2261 | if (count != sizeof(struct raw1394_request)) { |
2262 | return -EINVAL; | |
2263 | } | |
2264 | ||
2265 | req = alloc_pending_request(); | |
2266 | if (req == NULL) { | |
2267 | return -ENOMEM; | |
2268 | } | |
2269 | req->file_info = fi; | |
2270 | ||
2271 | if (copy_from_user(&req->req, buffer, sizeof(struct raw1394_request))) { | |
2272 | free_pending_request(req); | |
2273 | return -EFAULT; | |
2274 | } | |
2275 | ||
64549e93 MB |
2276 | if (!mutex_trylock(&fi->state_mutex)) { |
2277 | free_pending_request(req); | |
638570b5 | 2278 | return -EAGAIN; |
64549e93 | 2279 | } |
f22e52b8 | 2280 | |
1da177e4 LT |
2281 | switch (fi->state) { |
2282 | case opened: | |
2283 | retval = state_opened(fi, req); | |
2284 | break; | |
2285 | ||
2286 | case initialized: | |
2287 | retval = state_initialized(fi, req); | |
2288 | break; | |
2289 | ||
2290 | case connected: | |
2291 | retval = state_connected(fi, req); | |
2292 | break; | |
2293 | } | |
2294 | ||
f22e52b8 SR |
2295 | mutex_unlock(&fi->state_mutex); |
2296 | ||
1da177e4 LT |
2297 | if (retval < 0) { |
2298 | free_pending_request(req); | |
883b97ea PV |
2299 | } else { |
2300 | BUG_ON(retval); | |
2301 | retval = count; | |
1da177e4 LT |
2302 | } |
2303 | ||
2304 | return retval; | |
2305 | } | |
2306 | ||
2307 | /* rawiso operations */ | |
2308 | ||
2309 | /* check if any RAW1394_REQ_RAWISO_ACTIVITY event is already in the | |
2310 | * completion queue (reqlists_lock must be taken) */ | |
2311 | static inline int __rawiso_event_in_queue(struct file_info *fi) | |
2312 | { | |
2313 | struct pending_request *req; | |
2314 | ||
2315 | list_for_each_entry(req, &fi->req_complete, list) | |
2316 | if (req->req.type == RAW1394_REQ_RAWISO_ACTIVITY) | |
2317 | return 1; | |
2318 | ||
2319 | return 0; | |
2320 | } | |
2321 | ||
2322 | /* put a RAWISO_ACTIVITY event in the queue, if one isn't there already */ | |
2323 | static void queue_rawiso_event(struct file_info *fi) | |
2324 | { | |
2325 | unsigned long flags; | |
2326 | ||
2327 | spin_lock_irqsave(&fi->reqlists_lock, flags); | |
2328 | ||
2329 | /* only one ISO activity event may be in the queue */ | |
2330 | if (!__rawiso_event_in_queue(fi)) { | |
2331 | struct pending_request *req = | |
54e6ecb2 | 2332 | __alloc_pending_request(GFP_ATOMIC); |
1da177e4 LT |
2333 | |
2334 | if (req) { | |
2335 | req->file_info = fi; | |
2336 | req->req.type = RAW1394_REQ_RAWISO_ACTIVITY; | |
2337 | req->req.generation = get_hpsb_generation(fi->host); | |
2338 | __queue_complete_req(req); | |
2339 | } else { | |
2340 | /* on allocation failure, signal an overflow */ | |
2341 | if (fi->iso_handle) { | |
2342 | atomic_inc(&fi->iso_handle->overflows); | |
2343 | } | |
2344 | } | |
2345 | } | |
2346 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); | |
2347 | } | |
2348 | ||
2349 | static void rawiso_activity_cb(struct hpsb_iso *iso) | |
2350 | { | |
2351 | unsigned long flags; | |
2352 | struct host_info *hi; | |
2353 | struct file_info *fi; | |
2354 | ||
2355 | spin_lock_irqsave(&host_info_lock, flags); | |
2356 | hi = find_host_info(iso->host); | |
2357 | ||
2358 | if (hi != NULL) { | |
2359 | list_for_each_entry(fi, &hi->file_info_list, list) { | |
2360 | if (fi->iso_handle == iso) | |
2361 | queue_rawiso_event(fi); | |
2362 | } | |
2363 | } | |
2364 | ||
2365 | spin_unlock_irqrestore(&host_info_lock, flags); | |
2366 | } | |
2367 | ||
2368 | /* helper function - gather all the kernel iso status bits for returning to user-space */ | |
2369 | static void raw1394_iso_fill_status(struct hpsb_iso *iso, | |
2370 | struct raw1394_iso_status *stat) | |
2371 | { | |
cc9429bc PP |
2372 | int overflows = atomic_read(&iso->overflows); |
2373 | int skips = atomic_read(&iso->skips); | |
2374 | ||
1da177e4 LT |
2375 | stat->config.data_buf_size = iso->buf_size; |
2376 | stat->config.buf_packets = iso->buf_packets; | |
2377 | stat->config.channel = iso->channel; | |
2378 | stat->config.speed = iso->speed; | |
2379 | stat->config.irq_interval = iso->irq_interval; | |
2380 | stat->n_packets = hpsb_iso_n_ready(iso); | |
cc9429bc | 2381 | stat->overflows = ((skips & 0xFFFF) << 16) | ((overflows & 0xFFFF)); |
1da177e4 LT |
2382 | stat->xmit_cycle = iso->xmit_cycle; |
2383 | } | |
2384 | ||
2385 | static int raw1394_iso_xmit_init(struct file_info *fi, void __user * uaddr) | |
2386 | { | |
2387 | struct raw1394_iso_status stat; | |
2388 | ||
2389 | if (!fi->host) | |
2390 | return -EINVAL; | |
2391 | ||
2392 | if (copy_from_user(&stat, uaddr, sizeof(stat))) | |
2393 | return -EFAULT; | |
2394 | ||
2395 | fi->iso_handle = hpsb_iso_xmit_init(fi->host, | |
2396 | stat.config.data_buf_size, | |
2397 | stat.config.buf_packets, | |
2398 | stat.config.channel, | |
2399 | stat.config.speed, | |
2400 | stat.config.irq_interval, | |
2401 | rawiso_activity_cb); | |
2402 | if (!fi->iso_handle) | |
2403 | return -ENOMEM; | |
2404 | ||
2405 | fi->iso_state = RAW1394_ISO_XMIT; | |
2406 | ||
2407 | raw1394_iso_fill_status(fi->iso_handle, &stat); | |
2408 | if (copy_to_user(uaddr, &stat, sizeof(stat))) | |
2409 | return -EFAULT; | |
2410 | ||
2411 | /* queue an event to get things started */ | |
2412 | rawiso_activity_cb(fi->iso_handle); | |
2413 | ||
2414 | return 0; | |
2415 | } | |
2416 | ||
2417 | static int raw1394_iso_recv_init(struct file_info *fi, void __user * uaddr) | |
2418 | { | |
2419 | struct raw1394_iso_status stat; | |
2420 | ||
2421 | if (!fi->host) | |
2422 | return -EINVAL; | |
2423 | ||
2424 | if (copy_from_user(&stat, uaddr, sizeof(stat))) | |
2425 | return -EFAULT; | |
2426 | ||
2427 | fi->iso_handle = hpsb_iso_recv_init(fi->host, | |
2428 | stat.config.data_buf_size, | |
2429 | stat.config.buf_packets, | |
2430 | stat.config.channel, | |
2431 | stat.config.dma_mode, | |
2432 | stat.config.irq_interval, | |
2433 | rawiso_activity_cb); | |
2434 | if (!fi->iso_handle) | |
2435 | return -ENOMEM; | |
2436 | ||
2437 | fi->iso_state = RAW1394_ISO_RECV; | |
2438 | ||
2439 | raw1394_iso_fill_status(fi->iso_handle, &stat); | |
2440 | if (copy_to_user(uaddr, &stat, sizeof(stat))) | |
2441 | return -EFAULT; | |
2442 | return 0; | |
2443 | } | |
2444 | ||
2445 | static int raw1394_iso_get_status(struct file_info *fi, void __user * uaddr) | |
2446 | { | |
2447 | struct raw1394_iso_status stat; | |
2448 | struct hpsb_iso *iso = fi->iso_handle; | |
2449 | ||
2450 | raw1394_iso_fill_status(fi->iso_handle, &stat); | |
2451 | if (copy_to_user(uaddr, &stat, sizeof(stat))) | |
2452 | return -EFAULT; | |
2453 | ||
2454 | /* reset overflow counter */ | |
2455 | atomic_set(&iso->overflows, 0); | |
cc9429bc PP |
2456 | /* reset skip counter */ |
2457 | atomic_set(&iso->skips, 0); | |
1da177e4 LT |
2458 | |
2459 | return 0; | |
2460 | } | |
2461 | ||
2462 | /* copy N packet_infos out of the ringbuffer into user-supplied array */ | |
2463 | static int raw1394_iso_recv_packets(struct file_info *fi, void __user * uaddr) | |
2464 | { | |
2465 | struct raw1394_iso_packets upackets; | |
2466 | unsigned int packet = fi->iso_handle->first_packet; | |
2467 | int i; | |
2468 | ||
2469 | if (copy_from_user(&upackets, uaddr, sizeof(upackets))) | |
2470 | return -EFAULT; | |
2471 | ||
2472 | if (upackets.n_packets > hpsb_iso_n_ready(fi->iso_handle)) | |
2473 | return -EINVAL; | |
2474 | ||
2475 | /* ensure user-supplied buffer is accessible and big enough */ | |
2476 | if (!access_ok(VERIFY_WRITE, upackets.infos, | |
c64d472a JMH |
2477 | upackets.n_packets * |
2478 | sizeof(struct raw1394_iso_packet_info))) | |
1da177e4 LT |
2479 | return -EFAULT; |
2480 | ||
2481 | /* copy the packet_infos out */ | |
2482 | for (i = 0; i < upackets.n_packets; i++) { | |
2483 | if (__copy_to_user(&upackets.infos[i], | |
2484 | &fi->iso_handle->infos[packet], | |
2485 | sizeof(struct raw1394_iso_packet_info))) | |
2486 | return -EFAULT; | |
2487 | ||
2488 | packet = (packet + 1) % fi->iso_handle->buf_packets; | |
2489 | } | |
2490 | ||
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | /* copy N packet_infos from user to ringbuffer, and queue them for transmission */ | |
2495 | static int raw1394_iso_send_packets(struct file_info *fi, void __user * uaddr) | |
2496 | { | |
2497 | struct raw1394_iso_packets upackets; | |
2498 | int i, rv; | |
2499 | ||
2500 | if (copy_from_user(&upackets, uaddr, sizeof(upackets))) | |
2501 | return -EFAULT; | |
2502 | ||
1934b8b6 | 2503 | if (upackets.n_packets >= fi->iso_handle->buf_packets) |
1da177e4 LT |
2504 | return -EINVAL; |
2505 | ||
1934b8b6 BC |
2506 | if (upackets.n_packets >= hpsb_iso_n_ready(fi->iso_handle)) |
2507 | return -EAGAIN; | |
2508 | ||
1da177e4 LT |
2509 | /* ensure user-supplied buffer is accessible and big enough */ |
2510 | if (!access_ok(VERIFY_READ, upackets.infos, | |
c64d472a JMH |
2511 | upackets.n_packets * |
2512 | sizeof(struct raw1394_iso_packet_info))) | |
1da177e4 LT |
2513 | return -EFAULT; |
2514 | ||
2515 | /* copy the infos structs in and queue the packets */ | |
2516 | for (i = 0; i < upackets.n_packets; i++) { | |
2517 | struct raw1394_iso_packet_info info; | |
2518 | ||
2519 | if (__copy_from_user(&info, &upackets.infos[i], | |
2520 | sizeof(struct raw1394_iso_packet_info))) | |
2521 | return -EFAULT; | |
2522 | ||
2523 | rv = hpsb_iso_xmit_queue_packet(fi->iso_handle, info.offset, | |
2524 | info.len, info.tag, info.sy); | |
2525 | if (rv) | |
2526 | return rv; | |
2527 | } | |
2528 | ||
2529 | return 0; | |
2530 | } | |
2531 | ||
2532 | static void raw1394_iso_shutdown(struct file_info *fi) | |
2533 | { | |
2534 | if (fi->iso_handle) | |
2535 | hpsb_iso_shutdown(fi->iso_handle); | |
2536 | ||
2537 | fi->iso_handle = NULL; | |
2538 | fi->iso_state = RAW1394_ISO_INACTIVE; | |
2539 | } | |
2540 | ||
3dc5ea9b PP |
2541 | static int raw1394_read_cycle_timer(struct file_info *fi, void __user * uaddr) |
2542 | { | |
2543 | struct raw1394_cycle_timer ct; | |
2544 | int err; | |
2545 | ||
2546 | err = hpsb_read_cycle_timer(fi->host, &ct.cycle_timer, &ct.local_time); | |
2547 | if (!err) | |
2548 | if (copy_to_user(uaddr, &ct, sizeof(ct))) | |
2549 | err = -EFAULT; | |
2550 | return err; | |
2551 | } | |
2552 | ||
1da177e4 LT |
2553 | /* mmap the rawiso xmit/recv buffer */ |
2554 | static int raw1394_mmap(struct file *file, struct vm_area_struct *vma) | |
2555 | { | |
2556 | struct file_info *fi = file->private_data; | |
10963ea1 SR |
2557 | int ret; |
2558 | ||
638570b5 SR |
2559 | if (!mutex_trylock(&fi->state_mutex)) |
2560 | return -EAGAIN; | |
1da177e4 LT |
2561 | |
2562 | if (fi->iso_state == RAW1394_ISO_INACTIVE) | |
10963ea1 SR |
2563 | ret = -EINVAL; |
2564 | else | |
2565 | ret = dma_region_mmap(&fi->iso_handle->data_buf, file, vma); | |
2566 | ||
2567 | mutex_unlock(&fi->state_mutex); | |
1da177e4 | 2568 | |
10963ea1 | 2569 | return ret; |
1da177e4 LT |
2570 | } |
2571 | ||
ddfb908d SR |
2572 | static long raw1394_ioctl_inactive(struct file_info *fi, unsigned int cmd, |
2573 | void __user *argp) | |
2574 | { | |
2575 | switch (cmd) { | |
2576 | case RAW1394_IOC_ISO_XMIT_INIT: | |
2577 | return raw1394_iso_xmit_init(fi, argp); | |
2578 | case RAW1394_IOC_ISO_RECV_INIT: | |
2579 | return raw1394_iso_recv_init(fi, argp); | |
2580 | default: | |
2581 | return -EINVAL; | |
2582 | } | |
2583 | } | |
2584 | ||
2585 | static long raw1394_ioctl_recv(struct file_info *fi, unsigned int cmd, | |
2586 | unsigned long arg) | |
1da177e4 | 2587 | { |
1da177e4 LT |
2588 | void __user *argp = (void __user *)arg; |
2589 | ||
ddfb908d SR |
2590 | switch (cmd) { |
2591 | case RAW1394_IOC_ISO_RECV_START:{ | |
2592 | int args[3]; | |
2593 | ||
2594 | if (copy_from_user(&args[0], argp, sizeof(args))) | |
2595 | return -EFAULT; | |
2596 | return hpsb_iso_recv_start(fi->iso_handle, | |
2597 | args[0], args[1], args[2]); | |
1da177e4 | 2598 | } |
ddfb908d SR |
2599 | case RAW1394_IOC_ISO_XMIT_RECV_STOP: |
2600 | hpsb_iso_stop(fi->iso_handle); | |
2601 | return 0; | |
2602 | case RAW1394_IOC_ISO_RECV_LISTEN_CHANNEL: | |
2603 | return hpsb_iso_recv_listen_channel(fi->iso_handle, arg); | |
2604 | case RAW1394_IOC_ISO_RECV_UNLISTEN_CHANNEL: | |
2605 | return hpsb_iso_recv_unlisten_channel(fi->iso_handle, arg); | |
2606 | case RAW1394_IOC_ISO_RECV_SET_CHANNEL_MASK:{ | |
2607 | u64 mask; | |
2608 | ||
2609 | if (copy_from_user(&mask, argp, sizeof(mask))) | |
2610 | return -EFAULT; | |
2611 | return hpsb_iso_recv_set_channel_mask(fi->iso_handle, | |
2612 | mask); | |
1da177e4 | 2613 | } |
ddfb908d SR |
2614 | case RAW1394_IOC_ISO_GET_STATUS: |
2615 | return raw1394_iso_get_status(fi, argp); | |
2616 | case RAW1394_IOC_ISO_RECV_PACKETS: | |
2617 | return raw1394_iso_recv_packets(fi, argp); | |
2618 | case RAW1394_IOC_ISO_RECV_RELEASE_PACKETS: | |
2619 | return hpsb_iso_recv_release_packets(fi->iso_handle, arg); | |
2620 | case RAW1394_IOC_ISO_RECV_FLUSH: | |
2621 | return hpsb_iso_recv_flush(fi->iso_handle); | |
2622 | case RAW1394_IOC_ISO_SHUTDOWN: | |
2623 | raw1394_iso_shutdown(fi); | |
2624 | return 0; | |
2625 | case RAW1394_IOC_ISO_QUEUE_ACTIVITY: | |
2626 | queue_rawiso_event(fi); | |
2627 | return 0; | |
2628 | default: | |
2629 | return -EINVAL; | |
2630 | } | |
2631 | } | |
2632 | ||
2633 | static long raw1394_ioctl_xmit(struct file_info *fi, unsigned int cmd, | |
2634 | void __user *argp) | |
2635 | { | |
2636 | switch (cmd) { | |
2637 | case RAW1394_IOC_ISO_XMIT_START:{ | |
2638 | int args[2]; | |
2639 | ||
2640 | if (copy_from_user(&args[0], argp, sizeof(args))) | |
2641 | return -EFAULT; | |
2642 | return hpsb_iso_xmit_start(fi->iso_handle, | |
2643 | args[0], args[1]); | |
1da177e4 | 2644 | } |
ddfb908d SR |
2645 | case RAW1394_IOC_ISO_XMIT_SYNC: |
2646 | return hpsb_iso_xmit_sync(fi->iso_handle); | |
2647 | case RAW1394_IOC_ISO_XMIT_RECV_STOP: | |
2648 | hpsb_iso_stop(fi->iso_handle); | |
2649 | return 0; | |
2650 | case RAW1394_IOC_ISO_GET_STATUS: | |
2651 | return raw1394_iso_get_status(fi, argp); | |
2652 | case RAW1394_IOC_ISO_XMIT_PACKETS: | |
2653 | return raw1394_iso_send_packets(fi, argp); | |
2654 | case RAW1394_IOC_ISO_SHUTDOWN: | |
2655 | raw1394_iso_shutdown(fi); | |
2656 | return 0; | |
2657 | case RAW1394_IOC_ISO_QUEUE_ACTIVITY: | |
2658 | queue_rawiso_event(fi); | |
2659 | return 0; | |
1da177e4 | 2660 | default: |
ddfb908d | 2661 | return -EINVAL; |
1da177e4 | 2662 | } |
ddfb908d SR |
2663 | } |
2664 | ||
2665 | /* ioctl is only used for rawiso operations */ | |
2666 | static long raw1394_ioctl(struct file *file, unsigned int cmd, | |
2667 | unsigned long arg) | |
2668 | { | |
2669 | struct file_info *fi = file->private_data; | |
2670 | void __user *argp = (void __user *)arg; | |
2671 | long ret; | |
1da177e4 | 2672 | |
3dc5ea9b PP |
2673 | /* state-independent commands */ |
2674 | switch(cmd) { | |
2675 | case RAW1394_IOC_GET_CYCLE_TIMER: | |
2676 | return raw1394_read_cycle_timer(fi, argp); | |
2677 | default: | |
2678 | break; | |
2679 | } | |
2680 | ||
638570b5 SR |
2681 | if (!mutex_trylock(&fi->state_mutex)) |
2682 | return -EAGAIN; | |
1da177e4 | 2683 | |
ddfb908d SR |
2684 | switch (fi->iso_state) { |
2685 | case RAW1394_ISO_INACTIVE: | |
2686 | ret = raw1394_ioctl_inactive(fi, cmd, argp); | |
2687 | break; | |
2688 | case RAW1394_ISO_RECV: | |
2689 | ret = raw1394_ioctl_recv(fi, cmd, arg); | |
2690 | break; | |
2691 | case RAW1394_ISO_XMIT: | |
2692 | ret = raw1394_ioctl_xmit(fi, cmd, argp); | |
2693 | break; | |
2694 | default: | |
2695 | ret = -EINVAL; | |
2696 | break; | |
2697 | } | |
10963ea1 | 2698 | |
10963ea1 | 2699 | mutex_unlock(&fi->state_mutex); |
1da177e4 | 2700 | |
3aea50a3 AC |
2701 | return ret; |
2702 | } | |
2703 | ||
650c12c5 PV |
2704 | #ifdef CONFIG_COMPAT |
2705 | struct raw1394_iso_packets32 { | |
2706 | __u32 n_packets; | |
2707 | compat_uptr_t infos; | |
2708 | } __attribute__((packed)); | |
2709 | ||
2710 | struct raw1394_cycle_timer32 { | |
2711 | __u32 cycle_timer; | |
2712 | __u64 local_time; | |
19f00e66 SR |
2713 | } |
2714 | #if defined(CONFIG_X86_64) || defined(CONFIG_IA64) | |
2715 | __attribute__((packed)) | |
2716 | #endif | |
2717 | ; | |
650c12c5 PV |
2718 | |
2719 | #define RAW1394_IOC_ISO_RECV_PACKETS32 \ | |
2720 | _IOW ('#', 0x25, struct raw1394_iso_packets32) | |
2721 | #define RAW1394_IOC_ISO_XMIT_PACKETS32 \ | |
2722 | _IOW ('#', 0x27, struct raw1394_iso_packets32) | |
2723 | #define RAW1394_IOC_GET_CYCLE_TIMER32 \ | |
2724 | _IOR ('#', 0x30, struct raw1394_cycle_timer32) | |
2725 | ||
2726 | static long raw1394_iso_xmit_recv_packets32(struct file *file, unsigned int cmd, | |
2727 | struct raw1394_iso_packets32 __user *arg) | |
2728 | { | |
2729 | compat_uptr_t infos32; | |
5b26e64e | 2730 | void __user *infos; |
650c12c5 PV |
2731 | long err = -EFAULT; |
2732 | struct raw1394_iso_packets __user *dst = compat_alloc_user_space(sizeof(struct raw1394_iso_packets)); | |
2733 | ||
2734 | if (!copy_in_user(&dst->n_packets, &arg->n_packets, sizeof arg->n_packets) && | |
2735 | !copy_from_user(&infos32, &arg->infos, sizeof infos32)) { | |
2736 | infos = compat_ptr(infos32); | |
2737 | if (!copy_to_user(&dst->infos, &infos, sizeof infos)) | |
ddfb908d | 2738 | err = raw1394_ioctl(file, cmd, (unsigned long)dst); |
650c12c5 PV |
2739 | } |
2740 | return err; | |
2741 | } | |
2742 | ||
2743 | static long raw1394_read_cycle_timer32(struct file_info *fi, void __user * uaddr) | |
2744 | { | |
2745 | struct raw1394_cycle_timer32 ct; | |
2746 | int err; | |
2747 | ||
2748 | err = hpsb_read_cycle_timer(fi->host, &ct.cycle_timer, &ct.local_time); | |
2749 | if (!err) | |
2750 | if (copy_to_user(uaddr, &ct, sizeof(ct))) | |
2751 | err = -EFAULT; | |
2752 | return err; | |
2753 | } | |
2754 | ||
2755 | static long raw1394_compat_ioctl(struct file *file, | |
2756 | unsigned int cmd, unsigned long arg) | |
2757 | { | |
2758 | struct file_info *fi = file->private_data; | |
2759 | void __user *argp = (void __user *)arg; | |
2760 | long err; | |
2761 | ||
650c12c5 PV |
2762 | switch (cmd) { |
2763 | /* These requests have same format as long as 'int' has same size. */ | |
2764 | case RAW1394_IOC_ISO_RECV_INIT: | |
2765 | case RAW1394_IOC_ISO_RECV_START: | |
2766 | case RAW1394_IOC_ISO_RECV_LISTEN_CHANNEL: | |
2767 | case RAW1394_IOC_ISO_RECV_UNLISTEN_CHANNEL: | |
2768 | case RAW1394_IOC_ISO_RECV_SET_CHANNEL_MASK: | |
2769 | case RAW1394_IOC_ISO_RECV_RELEASE_PACKETS: | |
2770 | case RAW1394_IOC_ISO_RECV_FLUSH: | |
2771 | case RAW1394_IOC_ISO_XMIT_RECV_STOP: | |
2772 | case RAW1394_IOC_ISO_XMIT_INIT: | |
2773 | case RAW1394_IOC_ISO_XMIT_START: | |
2774 | case RAW1394_IOC_ISO_XMIT_SYNC: | |
2775 | case RAW1394_IOC_ISO_GET_STATUS: | |
2776 | case RAW1394_IOC_ISO_SHUTDOWN: | |
2777 | case RAW1394_IOC_ISO_QUEUE_ACTIVITY: | |
ddfb908d | 2778 | err = raw1394_ioctl(file, cmd, arg); |
650c12c5 PV |
2779 | break; |
2780 | /* These request have different format. */ | |
2781 | case RAW1394_IOC_ISO_RECV_PACKETS32: | |
2782 | err = raw1394_iso_xmit_recv_packets32(file, RAW1394_IOC_ISO_RECV_PACKETS, argp); | |
2783 | break; | |
2784 | case RAW1394_IOC_ISO_XMIT_PACKETS32: | |
2785 | err = raw1394_iso_xmit_recv_packets32(file, RAW1394_IOC_ISO_XMIT_PACKETS, argp); | |
2786 | break; | |
2787 | case RAW1394_IOC_GET_CYCLE_TIMER32: | |
2788 | err = raw1394_read_cycle_timer32(fi, argp); | |
2789 | break; | |
2790 | default: | |
2791 | err = -EINVAL; | |
2792 | break; | |
2793 | } | |
650c12c5 PV |
2794 | |
2795 | return err; | |
2796 | } | |
2797 | #endif | |
2798 | ||
1da177e4 LT |
2799 | static unsigned int raw1394_poll(struct file *file, poll_table * pt) |
2800 | { | |
2801 | struct file_info *fi = file->private_data; | |
2802 | unsigned int mask = POLLOUT | POLLWRNORM; | |
4a9949d7 | 2803 | unsigned long flags; |
1da177e4 | 2804 | |
45289bf6 | 2805 | poll_wait(file, &fi->wait_complete, pt); |
1da177e4 | 2806 | |
4a9949d7 | 2807 | spin_lock_irqsave(&fi->reqlists_lock, flags); |
1da177e4 LT |
2808 | if (!list_empty(&fi->req_complete)) { |
2809 | mask |= POLLIN | POLLRDNORM; | |
2810 | } | |
4a9949d7 | 2811 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); |
1da177e4 LT |
2812 | |
2813 | return mask; | |
2814 | } | |
2815 | ||
2816 | static int raw1394_open(struct inode *inode, struct file *file) | |
2817 | { | |
2818 | struct file_info *fi; | |
2819 | ||
e94b1766 | 2820 | fi = kzalloc(sizeof(*fi), GFP_KERNEL); |
8551158a | 2821 | if (!fi) |
1da177e4 LT |
2822 | return -ENOMEM; |
2823 | ||
1da177e4 LT |
2824 | fi->notification = (u8) RAW1394_NOTIFY_ON; /* busreset notification */ |
2825 | ||
2826 | INIT_LIST_HEAD(&fi->list); | |
10963ea1 | 2827 | mutex_init(&fi->state_mutex); |
1da177e4 LT |
2828 | fi->state = opened; |
2829 | INIT_LIST_HEAD(&fi->req_pending); | |
2830 | INIT_LIST_HEAD(&fi->req_complete); | |
1da177e4 | 2831 | spin_lock_init(&fi->reqlists_lock); |
45289bf6 | 2832 | init_waitqueue_head(&fi->wait_complete); |
1da177e4 LT |
2833 | INIT_LIST_HEAD(&fi->addr_list); |
2834 | ||
2835 | file->private_data = fi; | |
2836 | ||
7cfe21aa | 2837 | return nonseekable_open(inode, file); |
1da177e4 LT |
2838 | } |
2839 | ||
2840 | static int raw1394_release(struct inode *inode, struct file *file) | |
2841 | { | |
2842 | struct file_info *fi = file->private_data; | |
2843 | struct list_head *lh; | |
2844 | struct pending_request *req; | |
45289bf6 | 2845 | int i, fail; |
1da177e4 LT |
2846 | int retval = 0; |
2847 | struct list_head *entry; | |
2848 | struct arm_addr *addr = NULL; | |
2849 | struct host_info *hi; | |
2850 | struct file_info *fi_hlp = NULL; | |
2851 | struct arm_addr *arm_addr = NULL; | |
2852 | int another_host; | |
2853 | int csr_mod = 0; | |
4a9949d7 | 2854 | unsigned long flags; |
1da177e4 LT |
2855 | |
2856 | if (fi->iso_state != RAW1394_ISO_INACTIVE) | |
2857 | raw1394_iso_shutdown(fi); | |
2858 | ||
4a9949d7 | 2859 | spin_lock_irqsave(&host_info_lock, flags); |
1da177e4 LT |
2860 | |
2861 | fail = 0; | |
2862 | /* set address-entries invalid */ | |
1da177e4 LT |
2863 | |
2864 | while (!list_empty(&fi->addr_list)) { | |
2865 | another_host = 0; | |
2866 | lh = fi->addr_list.next; | |
2867 | addr = list_entry(lh, struct arm_addr, addr_list); | |
2868 | /* another host with valid address-entry containing | |
2869 | same addressrange? */ | |
2870 | list_for_each_entry(hi, &host_info_list, list) { | |
2871 | if (hi->host != fi->host) { | |
2872 | list_for_each_entry(fi_hlp, &hi->file_info_list, | |
2873 | list) { | |
2874 | entry = fi_hlp->addr_list.next; | |
2875 | while (entry != &(fi_hlp->addr_list)) { | |
c64d472a | 2876 | arm_addr = list_entry(entry, struct |
1da177e4 LT |
2877 | arm_addr, |
2878 | addr_list); | |
2879 | if (arm_addr->start == | |
2880 | addr->start) { | |
2881 | DBGMSG | |
2882 | ("raw1394_release: " | |
2883 | "another host ownes " | |
2884 | "same addressrange"); | |
2885 | another_host = 1; | |
2886 | break; | |
2887 | } | |
2888 | entry = entry->next; | |
2889 | } | |
2890 | if (another_host) { | |
2891 | break; | |
2892 | } | |
2893 | } | |
2894 | } | |
2895 | } | |
2896 | if (!another_host) { | |
2897 | DBGMSG("raw1394_release: call hpsb_arm_unregister"); | |
2898 | retval = | |
2899 | hpsb_unregister_addrspace(&raw1394_highlevel, | |
2900 | fi->host, addr->start); | |
2901 | if (!retval) { | |
2902 | ++fail; | |
2903 | printk(KERN_ERR | |
2904 | "raw1394_release arm_Unregister failed\n"); | |
2905 | } | |
2906 | } | |
2907 | DBGMSG("raw1394_release: delete addr_entry from list"); | |
2908 | list_del(&addr->addr_list); | |
2909 | vfree(addr->addr_space_buffer); | |
2910 | kfree(addr); | |
2911 | } /* while */ | |
4a9949d7 | 2912 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
2913 | if (fail > 0) { |
2914 | printk(KERN_ERR "raw1394: during addr_list-release " | |
2915 | "error(s) occurred \n"); | |
2916 | } | |
2917 | ||
45289bf6 SR |
2918 | for (;;) { |
2919 | /* This locked section guarantees that neither | |
2920 | * complete nor pending requests exist once i!=0 */ | |
4a9949d7 | 2921 | spin_lock_irqsave(&fi->reqlists_lock, flags); |
45289bf6 | 2922 | while ((req = __next_complete_req(fi))) |
1da177e4 | 2923 | free_pending_request(req); |
1da177e4 | 2924 | |
45289bf6 | 2925 | i = list_empty(&fi->req_pending); |
4a9949d7 | 2926 | spin_unlock_irqrestore(&fi->reqlists_lock, flags); |
1da177e4 | 2927 | |
45289bf6 SR |
2928 | if (i) |
2929 | break; | |
2930 | /* | |
2931 | * Sleep until more requests can be freed. | |
2932 | * | |
2933 | * NB: We call the macro wait_event() with a condition argument | |
2934 | * with side effect. This is only possible because the side | |
2935 | * effect does not occur until the condition became true, and | |
2936 | * wait_event() won't evaluate the condition again after that. | |
2937 | */ | |
2938 | wait_event(fi->wait_complete, (req = next_complete_req(fi))); | |
2939 | free_pending_request(req); | |
1da177e4 LT |
2940 | } |
2941 | ||
2942 | /* Remove any sub-trees left by user space programs */ | |
2943 | for (i = 0; i < RAW1394_MAX_USER_CSR_DIRS; i++) { | |
2944 | struct csr1212_dentry *dentry; | |
2945 | if (!fi->csr1212_dirs[i]) | |
2946 | continue; | |
2947 | for (dentry = | |
2948 | fi->csr1212_dirs[i]->value.directory.dentries_head; dentry; | |
2949 | dentry = dentry->next) { | |
2950 | csr1212_detach_keyval_from_directory(fi->host->csr.rom-> | |
2951 | root_kv, | |
2952 | dentry->kv); | |
2953 | } | |
2954 | csr1212_release_keyval(fi->csr1212_dirs[i]); | |
2955 | fi->csr1212_dirs[i] = NULL; | |
2956 | csr_mod = 1; | |
2957 | } | |
2958 | ||
2959 | if ((csr_mod || fi->cfgrom_upd) | |
2960 | && hpsb_update_config_rom_image(fi->host) < 0) | |
2961 | HPSB_ERR | |
2962 | ("Failed to generate Configuration ROM image for host %d", | |
2963 | fi->host->id); | |
2964 | ||
2965 | if (fi->state == connected) { | |
4a9949d7 | 2966 | spin_lock_irqsave(&host_info_lock, flags); |
1da177e4 | 2967 | list_del(&fi->list); |
4a9949d7 | 2968 | spin_unlock_irqrestore(&host_info_lock, flags); |
1da177e4 LT |
2969 | |
2970 | put_device(&fi->host->device); | |
2971 | } | |
2972 | ||
0fe4c6fc SR |
2973 | spin_lock_irqsave(&host_info_lock, flags); |
2974 | if (fi->host) | |
2975 | module_put(fi->host->driver->owner); | |
2976 | spin_unlock_irqrestore(&host_info_lock, flags); | |
2977 | ||
1da177e4 LT |
2978 | kfree(fi); |
2979 | ||
2980 | return 0; | |
2981 | } | |
2982 | ||
2983 | /*** HOTPLUG STUFF **********************************************************/ | |
2984 | /* | |
2985 | * Export information about protocols/devices supported by this driver. | |
2986 | */ | |
e3864970 | 2987 | #ifdef MODULE |
c6409468 | 2988 | static const struct ieee1394_device_id raw1394_id_table[] = { |
1da177e4 LT |
2989 | { |
2990 | .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, | |
2991 | .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff, | |
2992 | .version = AVC_SW_VERSION_ENTRY & 0xffffff}, | |
2993 | { | |
2994 | .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, | |
2995 | .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, | |
2996 | .version = CAMERA_SW_VERSION_ENTRY & 0xffffff}, | |
2997 | { | |
2998 | .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, | |
2999 | .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, | |
3000 | .version = (CAMERA_SW_VERSION_ENTRY + 1) & 0xffffff}, | |
3001 | { | |
3002 | .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, | |
3003 | .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, | |
3004 | .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff}, | |
3005 | {} | |
3006 | }; | |
3007 | ||
3008 | MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table); | |
e3864970 | 3009 | #endif /* MODULE */ |
1da177e4 LT |
3010 | |
3011 | static struct hpsb_protocol_driver raw1394_driver = { | |
ed30c26e | 3012 | .name = "raw1394", |
1da177e4 LT |
3013 | }; |
3014 | ||
3015 | /******************************************************************************/ | |
3016 | ||
3017 | static struct hpsb_highlevel raw1394_highlevel = { | |
3018 | .name = RAW1394_DEVICE_NAME, | |
3019 | .add_host = add_host, | |
3020 | .remove_host = remove_host, | |
3021 | .host_reset = host_reset, | |
1da177e4 LT |
3022 | .fcp_request = fcp_request, |
3023 | }; | |
3024 | ||
3025 | static struct cdev raw1394_cdev; | |
2b8693c0 | 3026 | static const struct file_operations raw1394_fops = { |
1da177e4 LT |
3027 | .owner = THIS_MODULE, |
3028 | .read = raw1394_read, | |
3029 | .write = raw1394_write, | |
3030 | .mmap = raw1394_mmap, | |
3aea50a3 | 3031 | .unlocked_ioctl = raw1394_ioctl, |
650c12c5 PV |
3032 | #ifdef CONFIG_COMPAT |
3033 | .compat_ioctl = raw1394_compat_ioctl, | |
3034 | #endif | |
1da177e4 LT |
3035 | .poll = raw1394_poll, |
3036 | .open = raw1394_open, | |
3037 | .release = raw1394_release, | |
7cfe21aa | 3038 | .llseek = no_llseek, |
1da177e4 LT |
3039 | }; |
3040 | ||
3041 | static int __init init_raw1394(void) | |
3042 | { | |
3043 | int ret = 0; | |
3044 | ||
3045 | hpsb_register_highlevel(&raw1394_highlevel); | |
3046 | ||
c64d472a | 3047 | if (IS_ERR |
6229df31 GKH |
3048 | (device_create(hpsb_protocol_class, NULL, |
3049 | MKDEV(IEEE1394_MAJOR, | |
3050 | IEEE1394_MINOR_BLOCK_RAW1394 * 16), | |
3051 | NULL, RAW1394_DEVICE_NAME))) { | |
1da177e4 LT |
3052 | ret = -EFAULT; |
3053 | goto out_unreg; | |
3054 | } | |
c64d472a | 3055 | |
1da177e4 LT |
3056 | cdev_init(&raw1394_cdev, &raw1394_fops); |
3057 | raw1394_cdev.owner = THIS_MODULE; | |
1da177e4 LT |
3058 | ret = cdev_add(&raw1394_cdev, IEEE1394_RAW1394_DEV, 1); |
3059 | if (ret) { | |
3060 | HPSB_ERR("raw1394 failed to register minor device block"); | |
3061 | goto out_dev; | |
3062 | } | |
3063 | ||
3064 | HPSB_INFO("raw1394: /dev/%s device initialized", RAW1394_DEVICE_NAME); | |
3065 | ||
3066 | ret = hpsb_register_protocol(&raw1394_driver); | |
3067 | if (ret) { | |
3068 | HPSB_ERR("raw1394: failed to register protocol"); | |
3069 | cdev_del(&raw1394_cdev); | |
3070 | goto out_dev; | |
3071 | } | |
3072 | ||
3073 | goto out; | |
3074 | ||
c64d472a | 3075 | out_dev: |
dd7f2928 KS |
3076 | device_destroy(hpsb_protocol_class, |
3077 | MKDEV(IEEE1394_MAJOR, | |
3078 | IEEE1394_MINOR_BLOCK_RAW1394 * 16)); | |
c64d472a | 3079 | out_unreg: |
1da177e4 | 3080 | hpsb_unregister_highlevel(&raw1394_highlevel); |
c64d472a | 3081 | out: |
1da177e4 LT |
3082 | return ret; |
3083 | } | |
3084 | ||
3085 | static void __exit cleanup_raw1394(void) | |
3086 | { | |
dd7f2928 KS |
3087 | device_destroy(hpsb_protocol_class, |
3088 | MKDEV(IEEE1394_MAJOR, | |
3089 | IEEE1394_MINOR_BLOCK_RAW1394 * 16)); | |
1da177e4 | 3090 | cdev_del(&raw1394_cdev); |
1da177e4 LT |
3091 | hpsb_unregister_highlevel(&raw1394_highlevel); |
3092 | hpsb_unregister_protocol(&raw1394_driver); | |
3093 | } | |
3094 | ||
3095 | module_init(init_raw1394); | |
3096 | module_exit(cleanup_raw1394); | |
3097 | MODULE_LICENSE("GPL"); |