?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / staging / tidspbridge / pmgr / dspapi.c
blob767ffe270ed62907013a1740060f2d320a4a750f
1 /*
2 * dspapi.c
3 *
4 * DSP-BIOS Bridge driver support functions for TI OMAP processors.
5 *
6 * Common DSP API functions, also includes the wrapper
7 * functions called directly by the DeviceIOControl interface.
8 *
9 * Copyright (C) 2005-2006 Texas Instruments, Inc.
10 *
11 * This package is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 *
15 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
18 */
19 #include <linux/types.h>
20
21 /* ----------------------------------- Host OS */
22 #include <dspbridge/host_os.h>
23
24 /* ----------------------------------- DSP/BIOS Bridge */
25 #include <dspbridge/dbdefs.h>
26
27 /* ----------------------------------- Trace & Debug */
28 #include <dspbridge/dbc.h>
29
30 /* ----------------------------------- OS Adaptation Layer */
31 #include <dspbridge/ntfy.h>
32
33 /* ----------------------------------- Platform Manager */
34 #include <dspbridge/chnl.h>
35 #include <dspbridge/dev.h>
36 #include <dspbridge/drv.h>
37
38 #include <dspbridge/proc.h>
39 #include <dspbridge/strm.h>
40
41 /* ----------------------------------- Resource Manager */
42 #include <dspbridge/disp.h>
43 #include <dspbridge/mgr.h>
44 #include <dspbridge/node.h>
45 #include <dspbridge/rmm.h>
46
47 /* ----------------------------------- Others */
48 #include <dspbridge/msg.h>
49 #include <dspbridge/cmm.h>
50 #include <dspbridge/io.h>
51
52 /* ----------------------------------- This */
53 #include <dspbridge/dspapi.h>
54 #include <dspbridge/dbdcd.h>
55
56 #include <dspbridge/resourcecleanup.h>
57
58 /* ----------------------------------- Defines, Data Structures, Typedefs */
59 #define MAX_TRACEBUFLEN 255
60 #define MAX_LOADARGS 16
61 #define MAX_NODES 64
62 #define MAX_STREAMS 16
63 #define MAX_BUFS 64
64
65 /* Used to get dspbridge ioctl table */
66 #define DB_GET_IOC_TABLE(cmd) (DB_GET_MODULE(cmd) >> DB_MODULE_SHIFT)
67
68 /* Device IOCtl function pointer */
69 struct api_cmd {
70 u32(*fxn) (union trapped_args *args, void *pr_ctxt);
71 u32 index;
72 };
73
74 /* ----------------------------------- Globals */
75 static u32 api_c_refs;
76
77 /*
78 * Function tables.
79 * The order of these functions MUST be the same as the order of the command
80 * numbers defined in dspapi-ioctl.h This is how an IOCTL number in user mode
81 * turns into a function call in kernel mode.
82 */
83
84 /* MGR wrapper functions */
85 static struct api_cmd mgr_cmd[] = {
86 {mgrwrap_enum_node_info}, /* MGR_ENUMNODE_INFO */
87 {mgrwrap_enum_proc_info}, /* MGR_ENUMPROC_INFO */
88 {mgrwrap_register_object}, /* MGR_REGISTEROBJECT */
89 {mgrwrap_unregister_object}, /* MGR_UNREGISTEROBJECT */
90 {mgrwrap_wait_for_bridge_events}, /* MGR_WAIT */
91 {mgrwrap_get_process_resources_info}, /* MGR_GET_PROC_RES */
92 };
93
94 /* PROC wrapper functions */
95 static struct api_cmd proc_cmd[] = {
96 {procwrap_attach}, /* PROC_ATTACH */
97 {procwrap_ctrl}, /* PROC_CTRL */
98 {procwrap_detach}, /* PROC_DETACH */
99 {procwrap_enum_node_info}, /* PROC_ENUMNODE */
100 {procwrap_enum_resources}, /* PROC_ENUMRESOURCES */
101 {procwrap_get_state}, /* PROC_GET_STATE */
102 {procwrap_get_trace}, /* PROC_GET_TRACE */
103 {procwrap_load}, /* PROC_LOAD */
104 {procwrap_register_notify}, /* PROC_REGISTERNOTIFY */
105 {procwrap_start}, /* PROC_START */
106 {procwrap_reserve_memory}, /* PROC_RSVMEM */
107 {procwrap_un_reserve_memory}, /* PROC_UNRSVMEM */
108 {procwrap_map}, /* PROC_MAPMEM */
109 {procwrap_un_map}, /* PROC_UNMAPMEM */
110 {procwrap_flush_memory}, /* PROC_FLUSHMEMORY */
111 {procwrap_stop}, /* PROC_STOP */
112 {procwrap_invalidate_memory}, /* PROC_INVALIDATEMEMORY */
113 {procwrap_begin_dma}, /* PROC_BEGINDMA */
114 {procwrap_end_dma}, /* PROC_ENDDMA */
115 };
116
117 /* NODE wrapper functions */
118 static struct api_cmd node_cmd[] = {
119 {nodewrap_allocate}, /* NODE_ALLOCATE */
120 {nodewrap_alloc_msg_buf}, /* NODE_ALLOCMSGBUF */
121 {nodewrap_change_priority}, /* NODE_CHANGEPRIORITY */
122 {nodewrap_connect}, /* NODE_CONNECT */
123 {nodewrap_create}, /* NODE_CREATE */
124 {nodewrap_delete}, /* NODE_DELETE */
125 {nodewrap_free_msg_buf}, /* NODE_FREEMSGBUF */
126 {nodewrap_get_attr}, /* NODE_GETATTR */
127 {nodewrap_get_message}, /* NODE_GETMESSAGE */
128 {nodewrap_pause}, /* NODE_PAUSE */
129 {nodewrap_put_message}, /* NODE_PUTMESSAGE */
130 {nodewrap_register_notify}, /* NODE_REGISTERNOTIFY */
131 {nodewrap_run}, /* NODE_RUN */
132 {nodewrap_terminate}, /* NODE_TERMINATE */
133 {nodewrap_get_uuid_props}, /* NODE_GETUUIDPROPS */
134 };
135
136 /* STRM wrapper functions */
137 static struct api_cmd strm_cmd[] = {
138 {strmwrap_allocate_buffer}, /* STRM_ALLOCATEBUFFER */
139 {strmwrap_close}, /* STRM_CLOSE */
140 {strmwrap_free_buffer}, /* STRM_FREEBUFFER */
141 {strmwrap_get_event_handle}, /* STRM_GETEVENTHANDLE */
142 {strmwrap_get_info}, /* STRM_GETINFO */
143 {strmwrap_idle}, /* STRM_IDLE */
144 {strmwrap_issue}, /* STRM_ISSUE */
145 {strmwrap_open}, /* STRM_OPEN */
146 {strmwrap_reclaim}, /* STRM_RECLAIM */
147 {strmwrap_register_notify}, /* STRM_REGISTERNOTIFY */
148 {strmwrap_select}, /* STRM_SELECT */
149 };
150
151 /* CMM wrapper functions */
152 static struct api_cmd cmm_cmd[] = {
153 {cmmwrap_calloc_buf}, /* CMM_ALLOCBUF */
154 {cmmwrap_free_buf}, /* CMM_FREEBUF */
155 {cmmwrap_get_handle}, /* CMM_GETHANDLE */
156 {cmmwrap_get_info}, /* CMM_GETINFO */
157 };
158
159 /* Array used to store ioctl table sizes. It can hold up to 8 entries */
160 static u8 size_cmd[] = {
161 ARRAY_SIZE(mgr_cmd),
162 ARRAY_SIZE(proc_cmd),
163 ARRAY_SIZE(node_cmd),
164 ARRAY_SIZE(strm_cmd),
165 ARRAY_SIZE(cmm_cmd),
166 };
167
168 static inline void _cp_fm_usr(void *to, const void __user * from,
169 int *err, unsigned long bytes)
170 {
171 if (*err)
172 return;
173
174 if (unlikely(!from)) {
175 *err = -EFAULT;
176 return;
177 }
178
179 if (unlikely(copy_from_user(to, from, bytes)))
180 *err = -EFAULT;
181 }
182
183 #define CP_FM_USR(to, from, err, n) \
184 _cp_fm_usr(to, from, &(err), (n) * sizeof(*(to)))
185
186 static inline void _cp_to_usr(void __user *to, const void *from,
187 int *err, unsigned long bytes)
188 {
189 if (*err)
190 return;
191
192 if (unlikely(!to)) {
193 *err = -EFAULT;
194 return;
195 }
196
197 if (unlikely(copy_to_user(to, from, bytes)))
198 *err = -EFAULT;
199 }
200
201 #define CP_TO_USR(to, from, err, n) \
202 _cp_to_usr(to, from, &(err), (n) * sizeof(*(from)))
203
204 /*
205 * ======== api_call_dev_ioctl ========
206 * Purpose:
207 * Call the (wrapper) function for the corresponding API IOCTL.
208 */
209 inline int api_call_dev_ioctl(u32 cmd, union trapped_args *args,
210 u32 *result, void *pr_ctxt)
211 {
212 u32(*ioctl_cmd) (union trapped_args *args, void *pr_ctxt) = NULL;
213 int i;
214
215 if (_IOC_TYPE(cmd) != DB) {
216 pr_err("%s: Incompatible dspbridge ioctl number\n", __func__);
217 goto err;
218 }
219
220 if (DB_GET_IOC_TABLE(cmd) > ARRAY_SIZE(size_cmd)) {
221 pr_err("%s: undefined ioctl module\n", __func__);
222 goto err;
223 }
224
225 /* Check the size of the required cmd table */
226 i = DB_GET_IOC(cmd);
227 if (i > size_cmd[DB_GET_IOC_TABLE(cmd)]) {
228 pr_err("%s: requested ioctl %d out of bounds for table %d\n",
229 __func__, i, DB_GET_IOC_TABLE(cmd));
230 goto err;
231 }
232
233 switch (DB_GET_MODULE(cmd)) {
234 case DB_MGR:
235 ioctl_cmd = mgr_cmd[i].fxn;
236 break;
237 case DB_PROC:
238 ioctl_cmd = proc_cmd[i].fxn;
239 break;
240 case DB_NODE:
241 ioctl_cmd = node_cmd[i].fxn;
242 break;
243 case DB_STRM:
244 ioctl_cmd = strm_cmd[i].fxn;
245 break;
246 case DB_CMM:
247 ioctl_cmd = cmm_cmd[i].fxn;
248 break;
249 }
250
251 if (!ioctl_cmd) {
252 pr_err("%s: requested ioctl not defined\n", __func__);
253 goto err;
254 } else {
255 *result = (*ioctl_cmd) (args, pr_ctxt);
256 }
257
258 return 0;
259
260 err:
261 return -EINVAL;
262 }
263
264 /*
265 * ======== api_exit ========
266 */
267 void api_exit(void)
268 {
269 DBC_REQUIRE(api_c_refs > 0);
270 api_c_refs--;
271
272 if (api_c_refs == 0) {
273 /* Release all modules initialized in api_init(). */
274 cod_exit();
275 dev_exit();
276 chnl_exit();
277 msg_exit();
278 io_exit();
279 strm_exit();
280 disp_exit();
281 node_exit();
282 proc_exit();
283 mgr_exit();
284 rmm_exit();
285 drv_exit();
286 }
287 DBC_ENSURE(api_c_refs >= 0);
288 }
289
290 /*
291 * ======== api_init ========
292 * Purpose:
293 * Module initialization used by Bridge API.
294 */
295 bool api_init(void)
296 {
297 bool ret = true;
298 bool fdrv, fdev, fcod, fchnl, fmsg, fio;
299 bool fmgr, fproc, fnode, fdisp, fstrm, frmm;
300
301 if (api_c_refs == 0) {
302 /* initialize driver and other modules */
303 fdrv = drv_init();
304 fmgr = mgr_init();
305 fproc = proc_init();
306 fnode = node_init();
307 fdisp = disp_init();
308 fstrm = strm_init();
309 frmm = rmm_init();
310 fchnl = chnl_init();
311 fmsg = msg_mod_init();
312 fio = io_init();
313 fdev = dev_init();
314 fcod = cod_init();
315 ret = fdrv && fdev && fchnl && fcod && fmsg && fio;
316 ret = ret && fmgr && fproc && frmm;
317 if (!ret) {
318 if (fdrv)
319 drv_exit();
320
321 if (fmgr)
322 mgr_exit();
323
324 if (fstrm)
325 strm_exit();
326
327 if (fproc)
328 proc_exit();
329
330 if (fnode)
331 node_exit();
332
333 if (fdisp)
334 disp_exit();
335
336 if (fchnl)
337 chnl_exit();
338
339 if (fmsg)
340 msg_exit();
341
342 if (fio)
343 io_exit();
344
345 if (fdev)
346 dev_exit();
347
348 if (fcod)
349 cod_exit();
350
351 if (frmm)
352 rmm_exit();
353
354 }
355 }
356 if (ret)
357 api_c_refs++;
358
359 return ret;
360 }
361
362 /*
363 * ======== api_init_complete2 ========
364 * Purpose:
365 * Perform any required bridge initialization which cannot
366 * be performed in api_init() or dev_start_device() due
367 * to the fact that some services are not yet
368 * completely initialized.
369 * Parameters:
370 * Returns:
371 * 0: Allow this device to load
372 * -EPERM: Failure.
373 * Requires:
374 * Bridge API initialized.
375 * Ensures:
376 */
377 int api_init_complete2(void)
378 {
379 int status = 0;
380 struct cfg_devnode *dev_node;
381 struct dev_object *hdev_obj;
382 struct drv_data *drv_datap;
383 u8 dev_type;
384
385 DBC_REQUIRE(api_c_refs > 0);
386
387 /* Walk the list of DevObjects, get each devnode, and attempting to
388 * autostart the board. Note that this requires COF loading, which
389 * requires KFILE. */
390 for (hdev_obj = dev_get_first(); hdev_obj != NULL;
391 hdev_obj = dev_get_next(hdev_obj)) {
392 if (dev_get_dev_node(hdev_obj, &dev_node))
393 continue;
394
395 if (dev_get_dev_type(hdev_obj, &dev_type))
396 continue;
397
398 if ((dev_type == DSP_UNIT) || (dev_type == IVA_UNIT)) {
399 drv_datap = dev_get_drvdata(bridge);
400
401 if (drv_datap && drv_datap->base_img)
402 proc_auto_start(dev_node, hdev_obj);
403 }
404 }
405
406 return status;
407 }
408
409 /* TODO: Remove deprecated and not implemented ioctl wrappers */
410
411 /*
412 * ======== mgrwrap_enum_node_info ========
413 */
414 u32 mgrwrap_enum_node_info(union trapped_args *args, void *pr_ctxt)
415 {
416 u8 *pndb_props;
417 u32 num_nodes;
418 int status = 0;
419 u32 size = args->args_mgr_enumnode_info.ndb_props_size;
420
421 if (size < sizeof(struct dsp_ndbprops))
422 return -EINVAL;
423
424 pndb_props = kmalloc(size, GFP_KERNEL);
425 if (pndb_props == NULL)
426 status = -ENOMEM;
427
428 if (!status) {
429 status =
430 mgr_enum_node_info(args->args_mgr_enumnode_info.node_id,
431 (struct dsp_ndbprops *)pndb_props, size,
432 &num_nodes);
433 }
434 CP_TO_USR(args->args_mgr_enumnode_info.ndb_props, pndb_props, status,
435 size);
436 CP_TO_USR(args->args_mgr_enumnode_info.num_nodes, &num_nodes, status,
437 1);
438 kfree(pndb_props);
439
440 return status;
441 }
442
443 /*
444 * ======== mgrwrap_enum_proc_info ========
445 */
446 u32 mgrwrap_enum_proc_info(union trapped_args *args, void *pr_ctxt)
447 {
448 u8 *processor_info;
449 u8 num_procs;
450 int status = 0;
451 u32 size = args->args_mgr_enumproc_info.processor_info_size;
452
453 if (size < sizeof(struct dsp_processorinfo))
454 return -EINVAL;
455
456 processor_info = kmalloc(size, GFP_KERNEL);
457 if (processor_info == NULL)
458 status = -ENOMEM;
459
460 if (!status) {
461 status =
462 mgr_enum_processor_info(args->args_mgr_enumproc_info.
463 processor_id,
464 (struct dsp_processorinfo *)
465 processor_info, size, &num_procs);
466 }
467 CP_TO_USR(args->args_mgr_enumproc_info.processor_info, processor_info,
468 status, size);
469 CP_TO_USR(args->args_mgr_enumproc_info.num_procs, &num_procs,
470 status, 1);
471 kfree(processor_info);
472
473 return status;
474 }
475
476 #define WRAP_MAP2CALLER(x) x
477 /*
478 * ======== mgrwrap_register_object ========
479 */
480 u32 mgrwrap_register_object(union trapped_args *args, void *pr_ctxt)
481 {
482 u32 ret;
483 struct dsp_uuid uuid_obj;
484 u32 path_size = 0;
485 char *psz_path_name = NULL;
486 int status = 0;
487
488 CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
489 if (status)
490 goto func_end;
491 /* path_size is increased by 1 to accommodate NULL */
492 path_size = strlen_user((char *)
493 args->args_mgr_registerobject.sz_path_name) +
494 1;
495 psz_path_name = kmalloc(path_size, GFP_KERNEL);
496 if (!psz_path_name) {
497 status = -ENOMEM;
498 goto func_end;
499 }
500 ret = strncpy_from_user(psz_path_name,
501 (char *)args->args_mgr_registerobject.
502 sz_path_name, path_size);
503 if (!ret) {
504 status = -EFAULT;
505 goto func_end;
506 }
507
508 if (args->args_mgr_registerobject.obj_type >= DSP_DCDMAXOBJTYPE) {
509 status = -EINVAL;
510 goto func_end;
511 }
512
513 status = dcd_register_object(&uuid_obj,
514 args->args_mgr_registerobject.obj_type,
515 (char *)psz_path_name);
516 func_end:
517 kfree(psz_path_name);
518 return status;
519 }
520
521 /*
522 * ======== mgrwrap_unregister_object ========
523 */
524 u32 mgrwrap_unregister_object(union trapped_args *args, void *pr_ctxt)
525 {
526 int status = 0;
527 struct dsp_uuid uuid_obj;
528
529 CP_FM_USR(&uuid_obj, args->args_mgr_registerobject.uuid_obj, status, 1);
530 if (status)
531 goto func_end;
532
533 status = dcd_unregister_object(&uuid_obj,
534 args->args_mgr_unregisterobject.
535 obj_type);
536 func_end:
537 return status;
538
539 }
540
541 /*
542 * ======== mgrwrap_wait_for_bridge_events ========
543 */
544 u32 mgrwrap_wait_for_bridge_events(union trapped_args *args, void *pr_ctxt)
545 {
546 int status = 0;
547 struct dsp_notification *anotifications[MAX_EVENTS];
548 struct dsp_notification notifications[MAX_EVENTS];
549 u32 index, i;
550 u32 count = args->args_mgr_wait.count;
551
552 if (count > MAX_EVENTS)
553 status = -EINVAL;
554
555 /* get the array of pointers to user structures */
556 CP_FM_USR(anotifications, args->args_mgr_wait.anotifications,
557 status, count);
558 /* get the events */
559 for (i = 0; i < count; i++) {
560 CP_FM_USR(&notifications[i], anotifications[i], status, 1);
561 if (status || !notifications[i].handle) {
562 status = -EINVAL;
563 break;
564 }
565 /* set the array of pointers to kernel structures */
566 anotifications[i] = &notifications[i];
567 }
568 if (!status) {
569 status = mgr_wait_for_bridge_events(anotifications, count,
570 &index,
571 args->args_mgr_wait.
572 timeout);
573 }
574 CP_TO_USR(args->args_mgr_wait.index, &index, status, 1);
575 return status;
576 }
577
578 /*
579 * ======== MGRWRAP_GetProcessResourceInfo ========
580 */
581 u32 __deprecated mgrwrap_get_process_resources_info(union trapped_args * args,
582 void *pr_ctxt)
583 {
584 pr_err("%s: deprecated dspbridge ioctl\n", __func__);
585 return 0;
586 }
587
588 /*
589 * ======== procwrap_attach ========
590 */
591 u32 procwrap_attach(union trapped_args *args, void *pr_ctxt)
592 {
593 void *processor;
594 int status = 0;
595 struct dsp_processorattrin proc_attr_in, *attr_in = NULL;
596
597 /* Optional argument */
598 if (args->args_proc_attach.attr_in) {
599 CP_FM_USR(&proc_attr_in, args->args_proc_attach.attr_in, status,
600 1);
601 if (!status)
602 attr_in = &proc_attr_in;
603 else
604 goto func_end;
605
606 }
607 status = proc_attach(args->args_proc_attach.processor_id, attr_in,
608 &processor, pr_ctxt);
609 CP_TO_USR(args->args_proc_attach.ph_processor, &processor, status, 1);
610 func_end:
611 return status;
612 }
613
614 /*
615 * ======== procwrap_ctrl ========
616 */
617 u32 procwrap_ctrl(union trapped_args *args, void *pr_ctxt)
618 {
619 u32 cb_data_size, __user * psize = (u32 __user *)
620 args->args_proc_ctrl.args;
621 u8 *pargs = NULL;
622 int status = 0;
623 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
624
625 if (psize) {
626 if (get_user(cb_data_size, psize)) {
627 status = -EPERM;
628 goto func_end;
629 }
630 cb_data_size += sizeof(u32);
631 pargs = kmalloc(cb_data_size, GFP_KERNEL);
632 if (pargs == NULL) {
633 status = -ENOMEM;
634 goto func_end;
635 }
636
637 CP_FM_USR(pargs, args->args_proc_ctrl.args, status,
638 cb_data_size);
639 }
640 if (!status) {
641 status = proc_ctrl(hprocessor,
642 args->args_proc_ctrl.cmd,
643 (struct dsp_cbdata *)pargs);
644 }
645
646 /* CP_TO_USR(args->args_proc_ctrl.args, pargs, status, 1); */
647 kfree(pargs);
648 func_end:
649 return status;
650 }
651
652 /*
653 * ======== procwrap_detach ========
654 */
655 u32 __deprecated procwrap_detach(union trapped_args * args, void *pr_ctxt)
656 {
657 /* proc_detach called at bridge_release only */
658 pr_err("%s: deprecated dspbridge ioctl\n", __func__);
659 return 0;
660 }
661
662 /*
663 * ======== procwrap_enum_node_info ========
664 */
665 u32 procwrap_enum_node_info(union trapped_args *args, void *pr_ctxt)
666 {
667 int status;
668 void *node_tab[MAX_NODES];
669 u32 num_nodes;
670 u32 alloc_cnt;
671 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
672
673 if (!args->args_proc_enumnode_info.node_tab_size)
674 return -EINVAL;
675
676 status = proc_enum_nodes(hprocessor,
677 node_tab,
678 args->args_proc_enumnode_info.node_tab_size,
679 &num_nodes, &alloc_cnt);
680 CP_TO_USR(args->args_proc_enumnode_info.node_tab, node_tab, status,
681 num_nodes);
682 CP_TO_USR(args->args_proc_enumnode_info.num_nodes, &num_nodes,
683 status, 1);
684 CP_TO_USR(args->args_proc_enumnode_info.allocated, &alloc_cnt,
685 status, 1);
686 return status;
687 }
688
689 u32 procwrap_end_dma(union trapped_args *args, void *pr_ctxt)
690 {
691 int status;
692
693 if (args->args_proc_dma.dir >= DMA_NONE)
694 return -EINVAL;
695
696 status = proc_end_dma(pr_ctxt,
697 args->args_proc_dma.mpu_addr,
698 args->args_proc_dma.size,
699 args->args_proc_dma.dir);
700 return status;
701 }
702
703 u32 procwrap_begin_dma(union trapped_args *args, void *pr_ctxt)
704 {
705 int status;
706
707 if (args->args_proc_dma.dir >= DMA_NONE)
708 return -EINVAL;
709
710 status = proc_begin_dma(pr_ctxt,
711 args->args_proc_dma.mpu_addr,
712 args->args_proc_dma.size,
713 args->args_proc_dma.dir);
714 return status;
715 }
716
717 /*
718 * ======== procwrap_flush_memory ========
719 */
720 u32 procwrap_flush_memory(union trapped_args *args, void *pr_ctxt)
721 {
722 int status;
723
724 if (args->args_proc_flushmemory.flags >
725 PROC_WRITEBACK_INVALIDATE_MEM)
726 return -EINVAL;
727
728 status = proc_flush_memory(pr_ctxt,
729 args->args_proc_flushmemory.mpu_addr,
730 args->args_proc_flushmemory.size,
731 args->args_proc_flushmemory.flags);
732 return status;
733 }
734
735 /*
736 * ======== procwrap_invalidate_memory ========
737 */
738 u32 procwrap_invalidate_memory(union trapped_args *args, void *pr_ctxt)
739 {
740 int status;
741
742 status =
743 proc_invalidate_memory(pr_ctxt,
744 args->args_proc_invalidatememory.mpu_addr,
745 args->args_proc_invalidatememory.size);
746 return status;
747 }
748
749 /*
750 * ======== procwrap_enum_resources ========
751 */
752 u32 procwrap_enum_resources(union trapped_args *args, void *pr_ctxt)
753 {
754 int status = 0;
755 struct dsp_resourceinfo resource_info;
756 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
757
758 if (args->args_proc_enumresources.resource_info_size <
759 sizeof(struct dsp_resourceinfo))
760 return -EINVAL;
761
762 status =
763 proc_get_resource_info(hprocessor,
764 args->args_proc_enumresources.resource_type,
765 &resource_info,
766 args->args_proc_enumresources.
767 resource_info_size);
768
769 CP_TO_USR(args->args_proc_enumresources.resource_info, &resource_info,
770 status, 1);
771
772 return status;
773
774 }
775
776 /*
777 * ======== procwrap_get_state ========
778 */
779 u32 procwrap_get_state(union trapped_args *args, void *pr_ctxt)
780 {
781 int status;
782 struct dsp_processorstate proc_state;
783 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
784
785 if (args->args_proc_getstate.state_info_size <
786 sizeof(struct dsp_processorstate))
787 return -EINVAL;
788
789 status = proc_get_state(hprocessor, &proc_state,
790 args->args_proc_getstate.state_info_size);
791 CP_TO_USR(args->args_proc_getstate.proc_state_obj, &proc_state, status,
792 1);
793 return status;
794
795 }
796
797 /*
798 * ======== procwrap_get_trace ========
799 */
800 u32 procwrap_get_trace(union trapped_args *args, void *pr_ctxt)
801 {
802 int status;
803 u8 *pbuf;
804 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
805
806 if (args->args_proc_gettrace.max_size > MAX_TRACEBUFLEN)
807 return -EINVAL;
808
809 pbuf = kzalloc(args->args_proc_gettrace.max_size, GFP_KERNEL);
810 if (pbuf != NULL) {
811 status = proc_get_trace(hprocessor, pbuf,
812 args->args_proc_gettrace.max_size);
813 } else {
814 status = -ENOMEM;
815 }
816 CP_TO_USR(args->args_proc_gettrace.buf, pbuf, status,
817 args->args_proc_gettrace.max_size);
818 kfree(pbuf);
819
820 return status;
821 }
822
823 /*
824 * ======== procwrap_load ========
825 */
826 u32 procwrap_load(union trapped_args *args, void *pr_ctxt)
827 {
828 s32 i, len;
829 int status = 0;
830 char *temp;
831 s32 count = args->args_proc_load.argc_index;
832 u8 **argv = NULL, **envp = NULL;
833 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
834
835 if (count <= 0 || count > MAX_LOADARGS) {
836 status = -EINVAL;
837 goto func_cont;
838 }
839
840 argv = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
841 if (!argv) {
842 status = -ENOMEM;
843 goto func_cont;
844 }
845
846 CP_FM_USR(argv, args->args_proc_load.user_args, status, count);
847 if (status) {
848 kfree(argv);
849 argv = NULL;
850 goto func_cont;
851 }
852
853 for (i = 0; i < count; i++) {
854 if (argv[i]) {
855 /* User space pointer to argument */
856 temp = (char *)argv[i];
857 /* len is increased by 1 to accommodate NULL */
858 len = strlen_user((char *)temp) + 1;
859 /* Kernel space pointer to argument */
860 argv[i] = kmalloc(len, GFP_KERNEL);
861 if (argv[i]) {
862 CP_FM_USR(argv[i], temp, status, len);
863 if (status) {
864 kfree(argv[i]);
865 argv[i] = NULL;
866 goto func_cont;
867 }
868 } else {
869 status = -ENOMEM;
870 goto func_cont;
871 }
872 }
873 }
874 /* TODO: validate this */
875 if (args->args_proc_load.user_envp) {
876 /* number of elements in the envp array including NULL */
877 count = 0;
878 do {
879 if (get_user(temp,
880 args->args_proc_load.user_envp + count)) {
881 status = -EFAULT;
882 goto func_cont;
883 }
884 count++;
885 } while (temp);
886 envp = kmalloc(count * sizeof(u8 *), GFP_KERNEL);
887 if (!envp) {
888 status = -ENOMEM;
889 goto func_cont;
890 }
891
892 CP_FM_USR(envp, args->args_proc_load.user_envp, status, count);
893 if (status) {
894 kfree(envp);
895 envp = NULL;
896 goto func_cont;
897 }
898 for (i = 0; envp[i]; i++) {
899 /* User space pointer to argument */
900 temp = (char *)envp[i];
901 /* len is increased by 1 to accommodate NULL */
902 len = strlen_user((char *)temp) + 1;
903 /* Kernel space pointer to argument */
904 envp[i] = kmalloc(len, GFP_KERNEL);
905 if (envp[i]) {
906 CP_FM_USR(envp[i], temp, status, len);
907 if (status) {
908 kfree(envp[i]);
909 envp[i] = NULL;
910 goto func_cont;
911 }
912 } else {
913 status = -ENOMEM;
914 goto func_cont;
915 }
916 }
917 }
918
919 if (!status) {
920 status = proc_load(hprocessor,
921 args->args_proc_load.argc_index,
922 (const char **)argv, (const char **)envp);
923 }
924 func_cont:
925 if (envp) {
926 i = 0;
927 while (envp[i])
928 kfree(envp[i++]);
929
930 kfree(envp);
931 }
932
933 if (argv) {
934 count = args->args_proc_load.argc_index;
935 for (i = 0; (i < count) && argv[i]; i++)
936 kfree(argv[i]);
937
938 kfree(argv);
939 }
940
941 return status;
942 }
943
944 /*
945 * ======== procwrap_map ========
946 */
947 u32 procwrap_map(union trapped_args *args, void *pr_ctxt)
948 {
949 int status;
950 void *map_addr;
951 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
952
953 if (!args->args_proc_mapmem.size)
954 return -EINVAL;
955
956 status = proc_map(args->args_proc_mapmem.processor,
957 args->args_proc_mapmem.mpu_addr,
958 args->args_proc_mapmem.size,
959 args->args_proc_mapmem.req_addr, &map_addr,
960 args->args_proc_mapmem.map_attr, pr_ctxt);
961 if (!status) {
962 if (put_user(map_addr, args->args_proc_mapmem.map_addr)) {
963 status = -EINVAL;
964 proc_un_map(hprocessor, map_addr, pr_ctxt);
965 }
966
967 }
968 return status;
969 }
970
971 /*
972 * ======== procwrap_register_notify ========
973 */
974 u32 procwrap_register_notify(union trapped_args *args, void *pr_ctxt)
975 {
976 int status;
977 struct dsp_notification notification;
978 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
979
980 /* Initialize the notification data structure */
981 notification.name = NULL;
982 notification.handle = NULL;
983
984 status = proc_register_notify(hprocessor,
985 args->args_proc_register_notify.event_mask,
986 args->args_proc_register_notify.notify_type,
987 &notification);
988 CP_TO_USR(args->args_proc_register_notify.notification, &notification,
989 status, 1);
990 return status;
991 }
992
993 /*
994 * ======== procwrap_reserve_memory ========
995 */
996 u32 procwrap_reserve_memory(union trapped_args *args, void *pr_ctxt)
997 {
998 int status;
999 void *prsv_addr;
1000 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
1001
1002 if ((args->args_proc_rsvmem.size <= 0) ||
1003 (args->args_proc_rsvmem.size & (PG_SIZE4K - 1)) != 0)
1004 return -EINVAL;
1005
1006 status = proc_reserve_memory(hprocessor,
1007 args->args_proc_rsvmem.size, &prsv_addr,
1008 pr_ctxt);
1009 if (!status) {
1010 if (put_user(prsv_addr, args->args_proc_rsvmem.rsv_addr)) {
1011 status = -EINVAL;
1012 proc_un_reserve_memory(args->args_proc_rsvmem.
1013 processor, prsv_addr, pr_ctxt);
1014 }
1015 }
1016 return status;
1017 }
1018
1019 /*
1020 * ======== procwrap_start ========
1021 */
1022 u32 procwrap_start(union trapped_args *args, void *pr_ctxt)
1023 {
1024 u32 ret;
1025
1026 ret = proc_start(((struct process_context *)pr_ctxt)->processor);
1027 return ret;
1028 }
1029
1030 /*
1031 * ======== procwrap_un_map ========
1032 */
1033 u32 procwrap_un_map(union trapped_args *args, void *pr_ctxt)
1034 {
1035 int status;
1036
1037 status = proc_un_map(((struct process_context *)pr_ctxt)->processor,
1038 args->args_proc_unmapmem.map_addr, pr_ctxt);
1039 return status;
1040 }
1041
1042 /*
1043 * ======== procwrap_un_reserve_memory ========
1044 */
1045 u32 procwrap_un_reserve_memory(union trapped_args *args, void *pr_ctxt)
1046 {
1047 int status;
1048 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
1049
1050 status = proc_un_reserve_memory(hprocessor,
1051 args->args_proc_unrsvmem.rsv_addr,
1052 pr_ctxt);
1053 return status;
1054 }
1055
1056 /*
1057 * ======== procwrap_stop ========
1058 */
1059 u32 procwrap_stop(union trapped_args *args, void *pr_ctxt)
1060 {
1061 u32 ret;
1062
1063 ret = proc_stop(((struct process_context *)pr_ctxt)->processor);
1064
1065 return ret;
1066 }
1067
1068 /*
1069 * ======== find_handle =========
1070 */
1071 inline void find_node_handle(struct node_res_object **noderes,
1072 void *pr_ctxt, void *hnode)
1073 {
1074 rcu_read_lock();
1075 *noderes = idr_find(((struct process_context *)pr_ctxt)->node_id,
1076 (int)hnode - 1);
1077 rcu_read_unlock();
1078 return;
1079 }
1080
1081
1082 /*
1083 * ======== nodewrap_allocate ========
1084 */
1085 u32 nodewrap_allocate(union trapped_args *args, void *pr_ctxt)
1086 {
1087 int status = 0;
1088 struct dsp_uuid node_uuid;
1089 u32 cb_data_size = 0;
1090 u32 __user *psize = (u32 __user *) args->args_node_allocate.args;
1091 u8 *pargs = NULL;
1092 struct dsp_nodeattrin proc_attr_in, *attr_in = NULL;
1093 struct node_res_object *node_res;
1094 int nodeid;
1095 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
1096
1097 /* Optional argument */
1098 if (psize) {
1099 if (get_user(cb_data_size, psize))
1100 status = -EPERM;
1101
1102 cb_data_size += sizeof(u32);
1103 if (!status) {
1104 pargs = kmalloc(cb_data_size, GFP_KERNEL);
1105 if (pargs == NULL)
1106 status = -ENOMEM;
1107
1108 }
1109 CP_FM_USR(pargs, args->args_node_allocate.args, status,
1110 cb_data_size);
1111 }
1112 CP_FM_USR(&node_uuid, args->args_node_allocate.node_id_ptr, status, 1);
1113 if (status)
1114 goto func_cont;
1115 /* Optional argument */
1116 if (args->args_node_allocate.attr_in) {
1117 CP_FM_USR(&proc_attr_in, args->args_node_allocate.attr_in,
1118 status, 1);
1119 if (!status)
1120 attr_in = &proc_attr_in;
1121 else
1122 status = -ENOMEM;
1123
1124 }
1125 if (!status) {
1126 status = node_allocate(hprocessor,
1127 &node_uuid, (struct dsp_cbdata *)pargs,
1128 attr_in, &node_res, pr_ctxt);
1129 }
1130 if (!status) {
1131 nodeid = node_res->id + 1;
1132 CP_TO_USR(args->args_node_allocate.node, &nodeid,
1133 status, 1);
1134 if (status) {
1135 status = -EFAULT;
1136 node_delete(node_res, pr_ctxt);
1137 }
1138 }
1139 func_cont:
1140 kfree(pargs);
1141
1142 return status;
1143 }
1144
1145 /*
1146 * ======== nodewrap_alloc_msg_buf ========
1147 */
1148 u32 nodewrap_alloc_msg_buf(union trapped_args *args, void *pr_ctxt)
1149 {
1150 int status = 0;
1151 struct dsp_bufferattr *pattr = NULL;
1152 struct dsp_bufferattr attr;
1153 u8 *pbuffer = NULL;
1154 struct node_res_object *node_res;
1155
1156 find_node_handle(&node_res, pr_ctxt,
1157 args->args_node_allocmsgbuf.node);
1158
1159 if (!node_res)
1160 return -EFAULT;
1161
1162 if (!args->args_node_allocmsgbuf.size)
1163 return -EINVAL;
1164
1165 if (args->args_node_allocmsgbuf.attr) { /* Optional argument */
1166 CP_FM_USR(&attr, args->args_node_allocmsgbuf.attr, status, 1);
1167 if (!status)
1168 pattr = &attr;
1169
1170 }
1171 /* argument */
1172 CP_FM_USR(&pbuffer, args->args_node_allocmsgbuf.buffer, status, 1);
1173 if (!status) {
1174 status = node_alloc_msg_buf(node_res->node,
1175 args->args_node_allocmsgbuf.size,
1176 pattr, &pbuffer);
1177 }
1178 CP_TO_USR(args->args_node_allocmsgbuf.buffer, &pbuffer, status, 1);
1179 return status;
1180 }
1181
1182 /*
1183 * ======== nodewrap_change_priority ========
1184 */
1185 u32 nodewrap_change_priority(union trapped_args *args, void *pr_ctxt)
1186 {
1187 u32 ret;
1188 struct node_res_object *node_res;
1189
1190 find_node_handle(&node_res, pr_ctxt,
1191 args->args_node_changepriority.node);
1192
1193 if (!node_res)
1194 return -EFAULT;
1195
1196 ret = node_change_priority(node_res->node,
1197 args->args_node_changepriority.prio);
1198
1199 return ret;
1200 }
1201
1202 /*
1203 * ======== nodewrap_connect ========
1204 */
1205 u32 nodewrap_connect(union trapped_args *args, void *pr_ctxt)
1206 {
1207 int status = 0;
1208 struct dsp_strmattr attrs;
1209 struct dsp_strmattr *pattrs = NULL;
1210 u32 cb_data_size;
1211 u32 __user *psize = (u32 __user *) args->args_node_connect.conn_param;
1212 u8 *pargs = NULL;
1213 struct node_res_object *node_res1, *node_res2;
1214 struct node_object *node1 = NULL, *node2 = NULL;
1215
1216 if ((int)args->args_node_connect.node != DSP_HGPPNODE) {
1217 find_node_handle(&node_res1, pr_ctxt,
1218 args->args_node_connect.node);
1219 if (node_res1)
1220 node1 = node_res1->node;
1221 } else {
1222 node1 = args->args_node_connect.node;
1223 }
1224
1225 if ((int)args->args_node_connect.other_node != DSP_HGPPNODE) {
1226 find_node_handle(&node_res2, pr_ctxt,
1227 args->args_node_connect.other_node);
1228 if (node_res2)
1229 node2 = node_res2->node;
1230 } else {
1231 node2 = args->args_node_connect.other_node;
1232 }
1233
1234 if (!node1 || !node2)
1235 return -EFAULT;
1236
1237 /* Optional argument */
1238 if (psize) {
1239 if (get_user(cb_data_size, psize))
1240 status = -EPERM;
1241
1242 cb_data_size += sizeof(u32);
1243 if (!status) {
1244 pargs = kmalloc(cb_data_size, GFP_KERNEL);
1245 if (pargs == NULL) {
1246 status = -ENOMEM;
1247 goto func_cont;
1248 }
1249
1250 }
1251 CP_FM_USR(pargs, args->args_node_connect.conn_param, status,
1252 cb_data_size);
1253 if (status)
1254 goto func_cont;
1255 }
1256 if (args->args_node_connect.attrs) { /* Optional argument */
1257 CP_FM_USR(&attrs, args->args_node_connect.attrs, status, 1);
1258 if (!status)
1259 pattrs = &attrs;
1260
1261 }
1262 if (!status) {
1263 status = node_connect(node1,
1264 args->args_node_connect.stream_id,
1265 node2,
1266 args->args_node_connect.other_stream,
1267 pattrs, (struct dsp_cbdata *)pargs);
1268 }
1269 func_cont:
1270 kfree(pargs);
1271
1272 return status;
1273 }
1274
1275 /*
1276 * ======== nodewrap_create ========
1277 */
1278 u32 nodewrap_create(union trapped_args *args, void *pr_ctxt)
1279 {
1280 u32 ret;
1281 struct node_res_object *node_res;
1282
1283 find_node_handle(&node_res, pr_ctxt, args->args_node_create.node);
1284
1285 if (!node_res)
1286 return -EFAULT;
1287
1288 ret = node_create(node_res->node);
1289
1290 return ret;
1291 }
1292
1293 /*
1294 * ======== nodewrap_delete ========
1295 */
1296 u32 nodewrap_delete(union trapped_args *args, void *pr_ctxt)
1297 {
1298 u32 ret;
1299 struct node_res_object *node_res;
1300
1301 find_node_handle(&node_res, pr_ctxt, args->args_node_delete.node);
1302
1303 if (!node_res)
1304 return -EFAULT;
1305
1306 ret = node_delete(node_res, pr_ctxt);
1307
1308 return ret;
1309 }
1310
1311 /*
1312 * ======== nodewrap_free_msg_buf ========
1313 */
1314 u32 nodewrap_free_msg_buf(union trapped_args *args, void *pr_ctxt)
1315 {
1316 int status = 0;
1317 struct dsp_bufferattr *pattr = NULL;
1318 struct dsp_bufferattr attr;
1319 struct node_res_object *node_res;
1320
1321 find_node_handle(&node_res, pr_ctxt, args->args_node_freemsgbuf.node);
1322
1323 if (!node_res)
1324 return -EFAULT;
1325
1326 if (args->args_node_freemsgbuf.attr) { /* Optional argument */
1327 CP_FM_USR(&attr, args->args_node_freemsgbuf.attr, status, 1);
1328 if (!status)
1329 pattr = &attr;
1330
1331 }
1332
1333 if (!args->args_node_freemsgbuf.buffer)
1334 return -EFAULT;
1335
1336 if (!status) {
1337 status = node_free_msg_buf(node_res->node,
1338 args->args_node_freemsgbuf.buffer,
1339 pattr);
1340 }
1341
1342 return status;
1343 }
1344
1345 /*
1346 * ======== nodewrap_get_attr ========
1347 */
1348 u32 nodewrap_get_attr(union trapped_args *args, void *pr_ctxt)
1349 {
1350 int status = 0;
1351 struct dsp_nodeattr attr;
1352 struct node_res_object *node_res;
1353
1354 find_node_handle(&node_res, pr_ctxt, args->args_node_getattr.node);
1355
1356 if (!node_res)
1357 return -EFAULT;
1358
1359 status = node_get_attr(node_res->node, &attr,
1360 args->args_node_getattr.attr_size);
1361 CP_TO_USR(args->args_node_getattr.attr, &attr, status, 1);
1362
1363 return status;
1364 }
1365
1366 /*
1367 * ======== nodewrap_get_message ========
1368 */
1369 u32 nodewrap_get_message(union trapped_args *args, void *pr_ctxt)
1370 {
1371 int status;
1372 struct dsp_msg msg;
1373 struct node_res_object *node_res;
1374
1375 find_node_handle(&node_res, pr_ctxt, args->args_node_getmessage.node);
1376
1377 if (!node_res)
1378 return -EFAULT;
1379
1380 status = node_get_message(node_res->node, &msg,
1381 args->args_node_getmessage.timeout);
1382
1383 CP_TO_USR(args->args_node_getmessage.message, &msg, status, 1);
1384
1385 return status;
1386 }
1387
1388 /*
1389 * ======== nodewrap_pause ========
1390 */
1391 u32 nodewrap_pause(union trapped_args *args, void *pr_ctxt)
1392 {
1393 u32 ret;
1394 struct node_res_object *node_res;
1395
1396 find_node_handle(&node_res, pr_ctxt, args->args_node_pause.node);
1397
1398 if (!node_res)
1399 return -EFAULT;
1400
1401 ret = node_pause(node_res->node);
1402
1403 return ret;
1404 }
1405
1406 /*
1407 * ======== nodewrap_put_message ========
1408 */
1409 u32 nodewrap_put_message(union trapped_args *args, void *pr_ctxt)
1410 {
1411 int status = 0;
1412 struct dsp_msg msg;
1413 struct node_res_object *node_res;
1414
1415 find_node_handle(&node_res, pr_ctxt, args->args_node_putmessage.node);
1416
1417 if (!node_res)
1418 return -EFAULT;
1419
1420 CP_FM_USR(&msg, args->args_node_putmessage.message, status, 1);
1421
1422 if (!status) {
1423 status =
1424 node_put_message(node_res->node, &msg,
1425 args->args_node_putmessage.timeout);
1426 }
1427
1428 return status;
1429 }
1430
1431 /*
1432 * ======== nodewrap_register_notify ========
1433 */
1434 u32 nodewrap_register_notify(union trapped_args *args, void *pr_ctxt)
1435 {
1436 int status = 0;
1437 struct dsp_notification notification;
1438 struct node_res_object *node_res;
1439
1440 find_node_handle(&node_res, pr_ctxt,
1441 args->args_node_registernotify.node);
1442
1443 if (!node_res)
1444 return -EFAULT;
1445
1446 /* Initialize the notification data structure */
1447 notification.name = NULL;
1448 notification.handle = NULL;
1449
1450 if (!args->args_proc_register_notify.event_mask)
1451 CP_FM_USR(&notification,
1452 args->args_proc_register_notify.notification,
1453 status, 1);
1454
1455 status = node_register_notify(node_res->node,
1456 args->args_node_registernotify.event_mask,
1457 args->args_node_registernotify.
1458 notify_type, &notification);
1459 CP_TO_USR(args->args_node_registernotify.notification, &notification,
1460 status, 1);
1461 return status;
1462 }
1463
1464 /*
1465 * ======== nodewrap_run ========
1466 */
1467 u32 nodewrap_run(union trapped_args *args, void *pr_ctxt)
1468 {
1469 u32 ret;
1470 struct node_res_object *node_res;
1471
1472 find_node_handle(&node_res, pr_ctxt, args->args_node_run.node);
1473
1474 if (!node_res)
1475 return -EFAULT;
1476
1477 ret = node_run(node_res->node);
1478
1479 return ret;
1480 }
1481
1482 /*
1483 * ======== nodewrap_terminate ========
1484 */
1485 u32 nodewrap_terminate(union trapped_args *args, void *pr_ctxt)
1486 {
1487 int status;
1488 int tempstatus;
1489 struct node_res_object *node_res;
1490
1491 find_node_handle(&node_res, pr_ctxt, args->args_node_terminate.node);
1492
1493 if (!node_res)
1494 return -EFAULT;
1495
1496 status = node_terminate(node_res->node, &tempstatus);
1497
1498 CP_TO_USR(args->args_node_terminate.status, &tempstatus, status, 1);
1499
1500 return status;
1501 }
1502
1503 /*
1504 * ======== nodewrap_get_uuid_props ========
1505 */
1506 u32 nodewrap_get_uuid_props(union trapped_args *args, void *pr_ctxt)
1507 {
1508 int status = 0;
1509 struct dsp_uuid node_uuid;
1510 struct dsp_ndbprops *pnode_props = NULL;
1511 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
1512
1513 CP_FM_USR(&node_uuid, args->args_node_getuuidprops.node_id_ptr, status,
1514 1);
1515 if (status)
1516 goto func_cont;
1517 pnode_props = kmalloc(sizeof(struct dsp_ndbprops), GFP_KERNEL);
1518 if (pnode_props != NULL) {
1519 status =
1520 node_get_uuid_props(hprocessor, &node_uuid, pnode_props);
1521 CP_TO_USR(args->args_node_getuuidprops.node_props, pnode_props,
1522 status, 1);
1523 } else
1524 status = -ENOMEM;
1525 func_cont:
1526 kfree(pnode_props);
1527 return status;
1528 }
1529
1530 /*
1531 * ======== find_strm_handle =========
1532 */
1533 inline void find_strm_handle(struct strm_res_object **strmres,
1534 void *pr_ctxt, void *hstream)
1535 {
1536 rcu_read_lock();
1537 *strmres = idr_find(((struct process_context *)pr_ctxt)->stream_id,
1538 (int)hstream - 1);
1539 rcu_read_unlock();
1540 return;
1541 }
1542
1543 /*
1544 * ======== strmwrap_allocate_buffer ========
1545 */
1546 u32 strmwrap_allocate_buffer(union trapped_args *args, void *pr_ctxt)
1547 {
1548 int status;
1549 u8 **ap_buffer = NULL;
1550 u32 num_bufs = args->args_strm_allocatebuffer.num_bufs;
1551 struct strm_res_object *strm_res;
1552
1553 find_strm_handle(&strm_res, pr_ctxt,
1554 args->args_strm_allocatebuffer.stream);
1555
1556 if (!strm_res)
1557 return -EFAULT;
1558
1559 if (num_bufs > MAX_BUFS)
1560 return -EINVAL;
1561
1562 ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
1563 if (ap_buffer == NULL)
1564 return -ENOMEM;
1565
1566 status = strm_allocate_buffer(strm_res,
1567 args->args_strm_allocatebuffer.size,
1568 ap_buffer, num_bufs, pr_ctxt);
1569 if (!status) {
1570 CP_TO_USR(args->args_strm_allocatebuffer.ap_buffer, ap_buffer,
1571 status, num_bufs);
1572 if (status) {
1573 status = -EFAULT;
1574 strm_free_buffer(strm_res,
1575 ap_buffer, num_bufs, pr_ctxt);
1576 }
1577 }
1578 kfree(ap_buffer);
1579
1580 return status;
1581 }
1582
1583 /*
1584 * ======== strmwrap_close ========
1585 */
1586 u32 strmwrap_close(union trapped_args *args, void *pr_ctxt)
1587 {
1588 struct strm_res_object *strm_res;
1589
1590 find_strm_handle(&strm_res, pr_ctxt, args->args_strm_close.stream);
1591
1592 if (!strm_res)
1593 return -EFAULT;
1594
1595 return strm_close(strm_res, pr_ctxt);
1596 }
1597
1598 /*
1599 * ======== strmwrap_free_buffer ========
1600 */
1601 u32 strmwrap_free_buffer(union trapped_args *args, void *pr_ctxt)
1602 {
1603 int status = 0;
1604 u8 **ap_buffer = NULL;
1605 u32 num_bufs = args->args_strm_freebuffer.num_bufs;
1606 struct strm_res_object *strm_res;
1607
1608 find_strm_handle(&strm_res, pr_ctxt,
1609 args->args_strm_freebuffer.stream);
1610
1611 if (!strm_res)
1612 return -EFAULT;
1613
1614 if (num_bufs > MAX_BUFS)
1615 return -EINVAL;
1616
1617 ap_buffer = kmalloc((num_bufs * sizeof(u8 *)), GFP_KERNEL);
1618 if (ap_buffer == NULL)
1619 return -ENOMEM;
1620
1621 CP_FM_USR(ap_buffer, args->args_strm_freebuffer.ap_buffer, status,
1622 num_bufs);
1623
1624 if (!status)
1625 status = strm_free_buffer(strm_res,
1626 ap_buffer, num_bufs, pr_ctxt);
1627
1628 CP_TO_USR(args->args_strm_freebuffer.ap_buffer, ap_buffer, status,
1629 num_bufs);
1630 kfree(ap_buffer);
1631
1632 return status;
1633 }
1634
1635 /*
1636 * ======== strmwrap_get_event_handle ========
1637 */
1638 u32 __deprecated strmwrap_get_event_handle(union trapped_args * args,
1639 void *pr_ctxt)
1640 {
1641 pr_err("%s: deprecated dspbridge ioctl\n", __func__);
1642 return -ENOSYS;
1643 }
1644
1645 /*
1646 * ======== strmwrap_get_info ========
1647 */
1648 u32 strmwrap_get_info(union trapped_args *args, void *pr_ctxt)
1649 {
1650 int status = 0;
1651 struct stream_info strm_info;
1652 struct dsp_streaminfo user;
1653 struct dsp_streaminfo *temp;
1654 struct strm_res_object *strm_res;
1655
1656 find_strm_handle(&strm_res, pr_ctxt,
1657 args->args_strm_getinfo.stream);
1658
1659 if (!strm_res)
1660 return -EFAULT;
1661
1662 CP_FM_USR(&strm_info, args->args_strm_getinfo.stream_info, status, 1);
1663 temp = strm_info.user_strm;
1664
1665 strm_info.user_strm = &user;
1666
1667 if (!status) {
1668 status = strm_get_info(strm_res->stream,
1669 &strm_info,
1670 args->args_strm_getinfo.
1671 stream_info_size);
1672 }
1673 CP_TO_USR(temp, strm_info.user_strm, status, 1);
1674 strm_info.user_strm = temp;
1675 CP_TO_USR(args->args_strm_getinfo.stream_info, &strm_info, status, 1);
1676 return status;
1677 }
1678
1679 /*
1680 * ======== strmwrap_idle ========
1681 */
1682 u32 strmwrap_idle(union trapped_args *args, void *pr_ctxt)
1683 {
1684 u32 ret;
1685 struct strm_res_object *strm_res;
1686
1687 find_strm_handle(&strm_res, pr_ctxt, args->args_strm_idle.stream);
1688
1689 if (!strm_res)
1690 return -EFAULT;
1691
1692 ret = strm_idle(strm_res->stream, args->args_strm_idle.flush_flag);
1693
1694 return ret;
1695 }
1696
1697 /*
1698 * ======== strmwrap_issue ========
1699 */
1700 u32 strmwrap_issue(union trapped_args *args, void *pr_ctxt)
1701 {
1702 int status = 0;
1703 struct strm_res_object *strm_res;
1704
1705 find_strm_handle(&strm_res, pr_ctxt, args->args_strm_issue.stream);
1706
1707 if (!strm_res)
1708 return -EFAULT;
1709
1710 if (!args->args_strm_issue.buffer)
1711 return -EFAULT;
1712
1713 /* No need of doing CP_FM_USR for the user buffer (pbuffer)
1714 as this is done in Bridge internal function bridge_chnl_add_io_req
1715 in chnl_sm.c */
1716 status = strm_issue(strm_res->stream,
1717 args->args_strm_issue.buffer,
1718 args->args_strm_issue.bytes,
1719 args->args_strm_issue.buf_size,
1720 args->args_strm_issue.arg);
1721
1722 return status;
1723 }
1724
1725 /*
1726 * ======== strmwrap_open ========
1727 */
1728 u32 strmwrap_open(union trapped_args *args, void *pr_ctxt)
1729 {
1730 int status = 0;
1731 struct strm_attr attr;
1732 struct strm_res_object *strm_res_obj;
1733 struct dsp_streamattrin strm_attr_in;
1734 struct node_res_object *node_res;
1735 int strmid;
1736
1737 find_node_handle(&node_res, pr_ctxt, args->args_strm_open.node);
1738
1739 if (!node_res)
1740 return -EFAULT;
1741
1742 CP_FM_USR(&attr, args->args_strm_open.attr_in, status, 1);
1743
1744 if (attr.stream_attr_in != NULL) { /* Optional argument */
1745 CP_FM_USR(&strm_attr_in, attr.stream_attr_in, status, 1);
1746 if (!status) {
1747 attr.stream_attr_in = &strm_attr_in;
1748 if (attr.stream_attr_in->strm_mode == STRMMODE_LDMA)
1749 return -ENOSYS;
1750 }
1751
1752 }
1753 status = strm_open(node_res->node,
1754 args->args_strm_open.direction,
1755 args->args_strm_open.index, &attr, &strm_res_obj,
1756 pr_ctxt);
1757 if (!status) {
1758 strmid = strm_res_obj->id + 1;
1759 CP_TO_USR(args->args_strm_open.stream, &strmid, status, 1);
1760 }
1761 return status;
1762 }
1763
1764 /*
1765 * ======== strmwrap_reclaim ========
1766 */
1767 u32 strmwrap_reclaim(union trapped_args *args, void *pr_ctxt)
1768 {
1769 int status = 0;
1770 u8 *buf_ptr;
1771 u32 ul_bytes;
1772 u32 dw_arg;
1773 u32 ul_buf_size;
1774 struct strm_res_object *strm_res;
1775
1776 find_strm_handle(&strm_res, pr_ctxt, args->args_strm_reclaim.stream);
1777
1778 if (!strm_res)
1779 return -EFAULT;
1780
1781 status = strm_reclaim(strm_res->stream, &buf_ptr,
1782 &ul_bytes, &ul_buf_size, &dw_arg);
1783 CP_TO_USR(args->args_strm_reclaim.buf_ptr, &buf_ptr, status, 1);
1784 CP_TO_USR(args->args_strm_reclaim.bytes, &ul_bytes, status, 1);
1785 CP_TO_USR(args->args_strm_reclaim.arg, &dw_arg, status, 1);
1786
1787 if (args->args_strm_reclaim.buf_size_ptr != NULL) {
1788 CP_TO_USR(args->args_strm_reclaim.buf_size_ptr, &ul_buf_size,
1789 status, 1);
1790 }
1791
1792 return status;
1793 }
1794
1795 /*
1796 * ======== strmwrap_register_notify ========
1797 */
1798 u32 strmwrap_register_notify(union trapped_args *args, void *pr_ctxt)
1799 {
1800 int status = 0;
1801 struct dsp_notification notification;
1802 struct strm_res_object *strm_res;
1803
1804 find_strm_handle(&strm_res, pr_ctxt,
1805 args->args_strm_registernotify.stream);
1806
1807 if (!strm_res)
1808 return -EFAULT;
1809
1810 /* Initialize the notification data structure */
1811 notification.name = NULL;
1812 notification.handle = NULL;
1813
1814 status = strm_register_notify(strm_res->stream,
1815 args->args_strm_registernotify.event_mask,
1816 args->args_strm_registernotify.
1817 notify_type, &notification);
1818 CP_TO_USR(args->args_strm_registernotify.notification, &notification,
1819 status, 1);
1820
1821 return status;
1822 }
1823
1824 /*
1825 * ======== strmwrap_select ========
1826 */
1827 u32 strmwrap_select(union trapped_args *args, void *pr_ctxt)
1828 {
1829 u32 mask;
1830 struct strm_object *strm_tab[MAX_STREAMS];
1831 int status = 0;
1832 struct strm_res_object *strm_res;
1833 int *ids[MAX_STREAMS];
1834 int i;
1835
1836 if (args->args_strm_select.strm_num > MAX_STREAMS)
1837 return -EINVAL;
1838
1839 CP_FM_USR(ids, args->args_strm_select.stream_tab, status,
1840 args->args_strm_select.strm_num);
1841
1842 if (status)
1843 return status;
1844
1845 for (i = 0; i < args->args_strm_select.strm_num; i++) {
1846 find_strm_handle(&strm_res, pr_ctxt, ids[i]);
1847
1848 if (!strm_res)
1849 return -EFAULT;
1850
1851 strm_tab[i] = strm_res->stream;
1852 }
1853
1854 if (!status) {
1855 status = strm_select(strm_tab, args->args_strm_select.strm_num,
1856 &mask, args->args_strm_select.timeout);
1857 }
1858 CP_TO_USR(args->args_strm_select.mask, &mask, status, 1);
1859 return status;
1860 }
1861
1862 /* CMM */
1863
1864 /*
1865 * ======== cmmwrap_calloc_buf ========
1866 */
1867 u32 __deprecated cmmwrap_calloc_buf(union trapped_args * args, void *pr_ctxt)
1868 {
1869 /* This operation is done in kernel */
1870 pr_err("%s: deprecated dspbridge ioctl\n", __func__);
1871 return -ENOSYS;
1872 }
1873
1874 /*
1875 * ======== cmmwrap_free_buf ========
1876 */
1877 u32 __deprecated cmmwrap_free_buf(union trapped_args * args, void *pr_ctxt)
1878 {
1879 /* This operation is done in kernel */
1880 pr_err("%s: deprecated dspbridge ioctl\n", __func__);
1881 return -ENOSYS;
1882 }
1883
1884 /*
1885 * ======== cmmwrap_get_handle ========
1886 */
1887 u32 cmmwrap_get_handle(union trapped_args *args, void *pr_ctxt)
1888 {
1889 int status = 0;
1890 struct cmm_object *hcmm_mgr;
1891 void *hprocessor = ((struct process_context *)pr_ctxt)->processor;
1892
1893 status = cmm_get_handle(hprocessor, &hcmm_mgr);
1894
1895 CP_TO_USR(args->args_cmm_gethandle.cmm_mgr, &hcmm_mgr, status, 1);
1896
1897 return status;
1898 }
1899
1900 /*
1901 * ======== cmmwrap_get_info ========
1902 */
1903 u32 cmmwrap_get_info(union trapped_args *args, void *pr_ctxt)
1904 {
1905 int status = 0;
1906 struct cmm_info cmm_info_obj;
1907
1908 status = cmm_get_info(args->args_cmm_getinfo.cmm_mgr, &cmm_info_obj);
1909
1910 CP_TO_USR(args->args_cmm_getinfo.cmm_info_obj, &cmm_info_obj, status,
1911 1);
1912
1913 return status;
1914 }