forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathmixart.c
1401 lines (1131 loc) · 38.7 KB
/
mixart.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Driver for Digigram miXart soundcards
*
* main file with alsa callbacks
*
* Copyright (c) 2003 by Digigram <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "mixart.h"
#include "mixart_hwdep.h"
#include "mixart_core.h"
#include "mixart_mixer.h"
#define CARD_NAME "miXart"
MODULE_AUTHOR("Digigram <[email protected]>");
MODULE_DESCRIPTION("Digigram " CARD_NAME);
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Digigram," CARD_NAME "}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Digigram " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Digigram " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Digigram " CARD_NAME " soundcard.");
/*
*/
static DEFINE_PCI_DEVICE_TABLE(snd_mixart_ids) = {
{ PCI_VDEVICE(MOTOROLA, 0x0003), 0, }, /* MC8240 */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_mixart_ids);
static int mixart_set_pipe_state(struct mixart_mgr *mgr,
struct mixart_pipe *pipe, int start)
{
struct mixart_group_state_req group_state;
struct mixart_group_state_resp group_state_resp;
struct mixart_msg request;
int err;
u32 system_msg_uid;
switch(pipe->status) {
case PIPE_RUNNING:
case PIPE_CLOCK_SET:
if(start) return 0; /* already started */
break;
case PIPE_STOPPED:
if(!start) return 0; /* already stopped */
break;
default:
snd_printk(KERN_ERR "error mixart_set_pipe_state called with wrong pipe->status!\n");
return -EINVAL; /* function called with wrong pipe status */
}
system_msg_uid = 0x12345678; /* the event ! (take care: the MSB and two LSB's have to be 0) */
/* wait on the last MSG_SYSTEM_SEND_SYNCHRO_CMD command to be really finished */
request.message_id = MSG_SYSTEM_WAIT_SYNCHRO_CMD;
request.uid = (struct mixart_uid){0,0};
request.data = &system_msg_uid;
request.size = sizeof(system_msg_uid);
err = snd_mixart_send_msg_wait_notif(mgr, &request, system_msg_uid);
if(err) {
snd_printk(KERN_ERR "error : MSG_SYSTEM_WAIT_SYNCHRO_CMD was not notified !\n");
return err;
}
/* start or stop the pipe (1 pipe) */
memset(&group_state, 0, sizeof(group_state));
group_state.pipe_count = 1;
group_state.pipe_uid[0] = pipe->group_uid;
if(start)
request.message_id = MSG_STREAM_START_STREAM_GRP_PACKET;
else
request.message_id = MSG_STREAM_STOP_STREAM_GRP_PACKET;
request.uid = pipe->group_uid; /*(struct mixart_uid){0,0};*/
request.data = &group_state;
request.size = sizeof(group_state);
err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
if (err < 0 || group_state_resp.txx_status != 0) {
snd_printk(KERN_ERR "error MSG_STREAM_ST***_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
return -EINVAL;
}
if(start) {
u32 stat;
group_state.pipe_count = 0; /* in case of start same command once again with pipe_count=0 */
err = snd_mixart_send_msg(mgr, &request, sizeof(group_state_resp), &group_state_resp);
if (err < 0 || group_state_resp.txx_status != 0) {
snd_printk(KERN_ERR "error MSG_STREAM_START_STREAM_GRP_PACKET err=%x stat=%x !\n", err, group_state_resp.txx_status);
return -EINVAL;
}
/* in case of start send a synchro top */
request.message_id = MSG_SYSTEM_SEND_SYNCHRO_CMD;
request.uid = (struct mixart_uid){0,0};
request.data = NULL;
request.size = 0;
err = snd_mixart_send_msg(mgr, &request, sizeof(stat), &stat);
if (err < 0 || stat != 0) {
snd_printk(KERN_ERR "error MSG_SYSTEM_SEND_SYNCHRO_CMD err=%x stat=%x !\n", err, stat);
return -EINVAL;
}
pipe->status = PIPE_RUNNING;
}
else /* !start */
pipe->status = PIPE_STOPPED;
return 0;
}
static int mixart_set_clock(struct mixart_mgr *mgr,
struct mixart_pipe *pipe, unsigned int rate)
{
struct mixart_msg request;
struct mixart_clock_properties clock_properties;
struct mixart_clock_properties_resp clock_prop_resp;
int err;
switch(pipe->status) {
case PIPE_CLOCK_SET:
break;
case PIPE_RUNNING:
if(rate != 0)
break;
default:
if(rate == 0)
return 0; /* nothing to do */
else {
snd_printk(KERN_ERR "error mixart_set_clock(%d) called with wrong pipe->status !\n", rate);
return -EINVAL;
}
}
memset(&clock_properties, 0, sizeof(clock_properties));
clock_properties.clock_generic_type = (rate != 0) ? CGT_INTERNAL_CLOCK : CGT_NO_CLOCK;
clock_properties.clock_mode = CM_STANDALONE;
clock_properties.frequency = rate;
clock_properties.nb_callers = 1; /* only one entry in uid_caller ! */
clock_properties.uid_caller[0] = pipe->group_uid;
snd_printdd("mixart_set_clock to %d kHz\n", rate);
request.message_id = MSG_CLOCK_SET_PROPERTIES;
request.uid = mgr->uid_console_manager;
request.data = &clock_properties;
request.size = sizeof(clock_properties);
err = snd_mixart_send_msg(mgr, &request, sizeof(clock_prop_resp), &clock_prop_resp);
if (err < 0 || clock_prop_resp.status != 0 || clock_prop_resp.clock_mode != CM_STANDALONE) {
snd_printk(KERN_ERR "error MSG_CLOCK_SET_PROPERTIES err=%x stat=%x mod=%x !\n", err, clock_prop_resp.status, clock_prop_resp.clock_mode);
return -EINVAL;
}
if(rate) pipe->status = PIPE_CLOCK_SET;
else pipe->status = PIPE_RUNNING;
return 0;
}
/*
* Allocate or reference output pipe for analog IOs (pcmp0/1)
*/
struct mixart_pipe *
snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture,
int monitoring)
{
int stream_count;
struct mixart_pipe *pipe;
struct mixart_msg request;
if(capture) {
if (pcm_number == MIXART_PCM_ANALOG) {
pipe = &(chip->pipe_in_ana); /* analog inputs */
} else {
pipe = &(chip->pipe_in_dig); /* digital inputs */
}
request.message_id = MSG_STREAM_ADD_OUTPUT_GROUP;
stream_count = MIXART_CAPTURE_STREAMS;
} else {
if (pcm_number == MIXART_PCM_ANALOG) {
pipe = &(chip->pipe_out_ana); /* analog outputs */
} else {
pipe = &(chip->pipe_out_dig); /* digital outputs */
}
request.message_id = MSG_STREAM_ADD_INPUT_GROUP;
stream_count = MIXART_PLAYBACK_STREAMS;
}
/* a new stream is opened and there are already all streams in use */
if( (monitoring == 0) && (pipe->references >= stream_count) ) {
return NULL;
}
/* pipe is not yet defined */
if( pipe->status == PIPE_UNDEFINED ) {
int err, i;
struct {
struct mixart_streaming_group_req sgroup_req;
struct mixart_streaming_group sgroup_resp;
} *buf;
snd_printdd("add_ref_pipe audio chip(%d) pcm(%d)\n", chip->chip_idx, pcm_number);
buf = kmalloc(sizeof(*buf), GFP_KERNEL);
if (!buf)
return NULL;
request.uid = (struct mixart_uid){0,0}; /* should be StreamManagerUID, but zero is OK if there is only one ! */
request.data = &buf->sgroup_req;
request.size = sizeof(buf->sgroup_req);
memset(&buf->sgroup_req, 0, sizeof(buf->sgroup_req));
buf->sgroup_req.stream_count = stream_count;
buf->sgroup_req.channel_count = 2;
buf->sgroup_req.latency = 256;
buf->sgroup_req.connector = pipe->uid_left_connector; /* the left connector */
for (i=0; i<stream_count; i++) {
int j;
struct mixart_flowinfo *flowinfo;
struct mixart_bufferinfo *bufferinfo;
/* we don't yet know the format, so config 16 bit pcm audio for instance */
buf->sgroup_req.stream_info[i].size_max_byte_frame = 1024;
buf->sgroup_req.stream_info[i].size_max_sample_frame = 256;
buf->sgroup_req.stream_info[i].nb_bytes_max_per_sample = MIXART_FLOAT_P__4_0_TO_HEX; /* is 4.0f */
/* find the right bufferinfo_array */
j = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (pcm_number * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS)) + i;
if(capture) j += MIXART_PLAYBACK_STREAMS; /* in the array capture is behind playback */
buf->sgroup_req.flow_entry[i] = j;
flowinfo = (struct mixart_flowinfo *)chip->mgr->flowinfo.area;
flowinfo[j].bufferinfo_array_phy_address = (u32)chip->mgr->bufferinfo.addr + (j * sizeof(struct mixart_bufferinfo));
flowinfo[j].bufferinfo_count = 1; /* 1 will set the miXart to ring-buffer mode ! */
bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
bufferinfo[j].buffer_address = 0; /* buffer is not yet allocated */
bufferinfo[j].available_length = 0; /* buffer is not yet allocated */
/* construct the identifier of the stream buffer received in the interrupts ! */
bufferinfo[j].buffer_id = (chip->chip_idx << MIXART_NOTIFY_CARD_OFFSET) + (pcm_number << MIXART_NOTIFY_PCM_OFFSET ) + i;
if(capture) {
bufferinfo[j].buffer_id |= MIXART_NOTIFY_CAPT_MASK;
}
}
err = snd_mixart_send_msg(chip->mgr, &request, sizeof(buf->sgroup_resp), &buf->sgroup_resp);
if((err < 0) || (buf->sgroup_resp.status != 0)) {
snd_printk(KERN_ERR "error MSG_STREAM_ADD_**PUT_GROUP err=%x stat=%x !\n", err, buf->sgroup_resp.status);
kfree(buf);
return NULL;
}
pipe->group_uid = buf->sgroup_resp.group; /* id of the pipe, as returned by embedded */
pipe->stream_count = buf->sgroup_resp.stream_count;
/* pipe->stream_uid[i] = buf->sgroup_resp.stream[i].stream_uid; */
pipe->status = PIPE_STOPPED;
kfree(buf);
}
if(monitoring) pipe->monitoring = 1;
else pipe->references++;
return pipe;
}
int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr,
struct mixart_pipe *pipe, int monitoring)
{
int err = 0;
if(pipe->status == PIPE_UNDEFINED)
return 0;
if(monitoring)
pipe->monitoring = 0;
else
pipe->references--;
if((pipe->references <= 0) && (pipe->monitoring == 0)) {
struct mixart_msg request;
struct mixart_delete_group_resp delete_resp;
/* release the clock */
err = mixart_set_clock( mgr, pipe, 0);
if( err < 0 ) {
snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n");
}
/* stop the pipe */
err = mixart_set_pipe_state(mgr, pipe, 0);
if( err < 0 ) {
snd_printk(KERN_ERR "error stopping pipe!\n");
}
request.message_id = MSG_STREAM_DELETE_GROUP;
request.uid = (struct mixart_uid){0,0};
request.data = &pipe->group_uid; /* the streaming group ! */
request.size = sizeof(pipe->group_uid);
/* delete the pipe */
err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp);
if ((err < 0) || (delete_resp.status != 0)) {
snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status);
}
pipe->group_uid = (struct mixart_uid){0,0};
pipe->stream_count = 0;
pipe->status = PIPE_UNDEFINED;
}
return err;
}
static int mixart_set_stream_state(struct mixart_stream *stream, int start)
{
struct snd_mixart *chip;
struct mixart_stream_state_req stream_state_req;
struct mixart_msg request;
if(!stream->substream)
return -EINVAL;
memset(&stream_state_req, 0, sizeof(stream_state_req));
stream_state_req.stream_count = 1;
stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid;
stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number;
if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET;
else
request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET;
request.uid = (struct mixart_uid){0,0};
request.data = &stream_state_req;
request.size = sizeof(stream_state_req);
stream->abs_period_elapsed = 0; /* reset stream pos */
stream->buf_periods = 0;
stream->buf_period_frag = 0;
chip = snd_pcm_substream_chip(stream->substream);
return snd_mixart_send_msg_nonblock(chip->mgr, &request);
}
/*
* Trigger callback
*/
static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd)
{
struct mixart_stream *stream = subs->runtime->private_data;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_printdd("SNDRV_PCM_TRIGGER_START\n");
/* START_STREAM */
if( mixart_set_stream_state(stream, 1) )
return -EINVAL;
stream->status = MIXART_STREAM_STATUS_RUNNING;
break;
case SNDRV_PCM_TRIGGER_STOP:
/* STOP_STREAM */
if( mixart_set_stream_state(stream, 0) )
return -EINVAL;
stream->status = MIXART_STREAM_STATUS_OPEN;
snd_printdd("SNDRV_PCM_TRIGGER_STOP\n");
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
/* TODO */
stream->status = MIXART_STREAM_STATUS_PAUSE;
snd_printdd("SNDRV_PCM_PAUSE_PUSH\n");
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
/* TODO */
stream->status = MIXART_STREAM_STATUS_RUNNING;
snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n");
break;
default:
return -EINVAL;
}
return 0;
}
static int mixart_sync_nonblock_events(struct mixart_mgr *mgr)
{
unsigned long timeout = jiffies + HZ;
while (atomic_read(&mgr->msg_processed) > 0) {
if (time_after(jiffies, timeout)) {
snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n");
return -EBUSY;
}
schedule_timeout_uninterruptible(1);
}
return 0;
}
/*
* prepare callback for all pcms
*/
static int snd_mixart_prepare(struct snd_pcm_substream *subs)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
struct mixart_stream *stream = subs->runtime->private_data;
/* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */
snd_printdd("snd_mixart_prepare\n");
mixart_sync_nonblock_events(chip->mgr);
/* only the first stream can choose the sample rate */
/* the further opened streams will be limited to its frequency (see open) */
if(chip->mgr->ref_count_rate == 1)
chip->mgr->sample_rate = subs->runtime->rate;
/* set the clock only once (first stream) on the same pipe */
if(stream->pipe->references == 1) {
if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) )
return -EINVAL;
}
return 0;
}
static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format)
{
int err;
struct snd_mixart *chip;
struct mixart_msg request;
struct mixart_stream_param_desc stream_param;
struct mixart_return_uid resp;
chip = snd_pcm_substream_chip(stream->substream);
memset(&stream_param, 0, sizeof(stream_param));
stream_param.coding_type = CT_LINEAR;
stream_param.number_of_channel = stream->channels;
stream_param.sampling_freq = chip->mgr->sample_rate;
if(stream_param.sampling_freq == 0)
stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */
switch(format){
case SNDRV_PCM_FORMAT_U8:
stream_param.sample_type = ST_INTEGER_8;
stream_param.sample_size = 8;
break;
case SNDRV_PCM_FORMAT_S16_LE:
stream_param.sample_type = ST_INTEGER_16LE;
stream_param.sample_size = 16;
break;
case SNDRV_PCM_FORMAT_S16_BE:
stream_param.sample_type = ST_INTEGER_16BE;
stream_param.sample_size = 16;
break;
case SNDRV_PCM_FORMAT_S24_3LE:
stream_param.sample_type = ST_INTEGER_24LE;
stream_param.sample_size = 24;
break;
case SNDRV_PCM_FORMAT_S24_3BE:
stream_param.sample_type = ST_INTEGER_24BE;
stream_param.sample_size = 24;
break;
case SNDRV_PCM_FORMAT_FLOAT_LE:
stream_param.sample_type = ST_FLOATING_POINT_32LE;
stream_param.sample_size = 32;
break;
case SNDRV_PCM_FORMAT_FLOAT_BE:
stream_param.sample_type = ST_FLOATING_POINT_32BE;
stream_param.sample_size = 32;
break;
default:
snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n");
return -EINVAL;
}
snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n",
stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels);
/* TODO: what else to configure ? */
/* stream_param.samples_per_frame = 2; */
/* stream_param.bytes_per_frame = 4; */
/* stream_param.bytes_per_sample = 2; */
stream_param.pipe_count = 1; /* set to 1 */
stream_param.stream_count = 1; /* set to 1 */
stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid;
stream_param.stream_desc[0].stream_idx = stream->substream->number;
request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM;
request.uid = (struct mixart_uid){0,0};
request.data = &stream_param;
request.size = sizeof(stream_param);
err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
if((err < 0) || resp.error_code) {
snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code);
return -EINVAL;
}
return 0;
}
/*
* HW_PARAMS callback for all pcms
*/
static int snd_mixart_hw_params(struct snd_pcm_substream *subs,
struct snd_pcm_hw_params *hw)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
struct mixart_mgr *mgr = chip->mgr;
struct mixart_stream *stream = subs->runtime->private_data;
snd_pcm_format_t format;
int err;
int channels;
/* set up channels */
channels = params_channels(hw);
/* set up format for the stream */
format = params_format(hw);
mutex_lock(&mgr->setup_mutex);
/* update the stream levels */
if( stream->pcm_number <= MIXART_PCM_DIGITAL ) {
int is_aes = stream->pcm_number > MIXART_PCM_ANALOG;
if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK )
mixart_update_playback_stream_level(chip, is_aes, subs->number);
else
mixart_update_capture_stream_level( chip, is_aes);
}
stream->channels = channels;
/* set the format to the board */
err = mixart_set_format(stream, format);
if(err < 0) {
mutex_unlock(&mgr->setup_mutex);
return err;
}
/* allocate buffer */
err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw));
if (err > 0) {
struct mixart_bufferinfo *bufferinfo;
int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number;
if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) {
i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */
}
bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area;
bufferinfo[i].buffer_address = subs->runtime->dma_addr;
bufferinfo[i].available_length = subs->runtime->dma_bytes;
/* bufferinfo[i].buffer_id is already defined */
snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i,
bufferinfo[i].buffer_address,
bufferinfo[i].available_length,
subs->number);
}
mutex_unlock(&mgr->setup_mutex);
return err;
}
static int snd_mixart_hw_free(struct snd_pcm_substream *subs)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
snd_pcm_lib_free_pages(subs);
mixart_sync_nonblock_events(chip->mgr);
return 0;
}
/*
* TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
*/
static struct snd_pcm_hardware snd_mixart_analog_caps =
{
.info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE),
.formats = ( SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (32*1024),
.period_bytes_min = 256, /* 256 frames U8 mono*/
.period_bytes_max = (16*1024),
.periods_min = 2,
.periods_max = (32*1024/256),
};
static struct snd_pcm_hardware snd_mixart_digital_caps =
{
.info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE),
.formats = ( SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |
SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ),
.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.rate_min = 32000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (32*1024),
.period_bytes_min = 256, /* 256 frames U8 mono*/
.period_bytes_max = (16*1024),
.periods_min = 2,
.periods_max = (32*1024/256),
};
static int snd_mixart_playback_open(struct snd_pcm_substream *subs)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
struct mixart_mgr *mgr = chip->mgr;
struct snd_pcm_runtime *runtime = subs->runtime;
struct snd_pcm *pcm = subs->pcm;
struct mixart_stream *stream;
struct mixart_pipe *pipe;
int err = 0;
int pcm_number;
mutex_lock(&mgr->setup_mutex);
if ( pcm == chip->pcm ) {
pcm_number = MIXART_PCM_ANALOG;
runtime->hw = snd_mixart_analog_caps;
} else {
snd_BUG_ON(pcm != chip->pcm_dig);
pcm_number = MIXART_PCM_DIGITAL;
runtime->hw = snd_mixart_digital_caps;
}
snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
/* get stream info */
stream = &(chip->playback_stream[pcm_number][subs->number]);
if (stream->status != MIXART_STREAM_STATUS_FREE){
/* streams in use */
snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
err = -EBUSY;
goto _exit_open;
}
/* get pipe pointer (out pipe) */
pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0);
if (pipe == NULL) {
err = -EINVAL;
goto _exit_open;
}
/* start the pipe if necessary */
err = mixart_set_pipe_state(chip->mgr, pipe, 1);
if( err < 0 ) {
snd_printk(KERN_ERR "error starting pipe!\n");
snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
err = -EINVAL;
goto _exit_open;
}
stream->pipe = pipe;
stream->pcm_number = pcm_number;
stream->status = MIXART_STREAM_STATUS_OPEN;
stream->substream = subs;
stream->channels = 0; /* not configured yet */
runtime->private_data = stream;
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
/* if a sample rate is already used, another stream cannot change */
if(mgr->ref_count_rate++) {
if(mgr->sample_rate) {
runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
}
}
_exit_open:
mutex_unlock(&mgr->setup_mutex);
return err;
}
static int snd_mixart_capture_open(struct snd_pcm_substream *subs)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
struct mixart_mgr *mgr = chip->mgr;
struct snd_pcm_runtime *runtime = subs->runtime;
struct snd_pcm *pcm = subs->pcm;
struct mixart_stream *stream;
struct mixart_pipe *pipe;
int err = 0;
int pcm_number;
mutex_lock(&mgr->setup_mutex);
if ( pcm == chip->pcm ) {
pcm_number = MIXART_PCM_ANALOG;
runtime->hw = snd_mixart_analog_caps;
} else {
snd_BUG_ON(pcm != chip->pcm_dig);
pcm_number = MIXART_PCM_DIGITAL;
runtime->hw = snd_mixart_digital_caps;
}
runtime->hw.channels_min = 2; /* for instance, no mono */
snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number);
/* get stream info */
stream = &(chip->capture_stream[pcm_number]);
if (stream->status != MIXART_STREAM_STATUS_FREE){
/* streams in use */
snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number);
err = -EBUSY;
goto _exit_open;
}
/* get pipe pointer (in pipe) */
pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0);
if (pipe == NULL) {
err = -EINVAL;
goto _exit_open;
}
/* start the pipe if necessary */
err = mixart_set_pipe_state(chip->mgr, pipe, 1);
if( err < 0 ) {
snd_printk(KERN_ERR "error starting pipe!\n");
snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0);
err = -EINVAL;
goto _exit_open;
}
stream->pipe = pipe;
stream->pcm_number = pcm_number;
stream->status = MIXART_STREAM_STATUS_OPEN;
stream->substream = subs;
stream->channels = 0; /* not configured yet */
runtime->private_data = stream;
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64);
/* if a sample rate is already used, another stream cannot change */
if(mgr->ref_count_rate++) {
if(mgr->sample_rate) {
runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
}
}
_exit_open:
mutex_unlock(&mgr->setup_mutex);
return err;
}
static int snd_mixart_close(struct snd_pcm_substream *subs)
{
struct snd_mixart *chip = snd_pcm_substream_chip(subs);
struct mixart_mgr *mgr = chip->mgr;
struct mixart_stream *stream = subs->runtime->private_data;
mutex_lock(&mgr->setup_mutex);
snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number);
/* sample rate released */
if(--mgr->ref_count_rate == 0) {
mgr->sample_rate = 0;
}
/* delete pipe */
if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) {
snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number);
}
stream->pipe = NULL;
stream->status = MIXART_STREAM_STATUS_FREE;
stream->substream = NULL;
mutex_unlock(&mgr->setup_mutex);
return 0;
}
static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs)
{
struct snd_pcm_runtime *runtime = subs->runtime;
struct mixart_stream *stream = runtime->private_data;
return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag);
}
static struct snd_pcm_ops snd_mixart_playback_ops = {
.open = snd_mixart_playback_open,
.close = snd_mixart_close,
.ioctl = snd_pcm_lib_ioctl,
.prepare = snd_mixart_prepare,
.hw_params = snd_mixart_hw_params,
.hw_free = snd_mixart_hw_free,
.trigger = snd_mixart_trigger,
.pointer = snd_mixart_stream_pointer,
};
static struct snd_pcm_ops snd_mixart_capture_ops = {
.open = snd_mixart_capture_open,
.close = snd_mixart_close,
.ioctl = snd_pcm_lib_ioctl,
.prepare = snd_mixart_prepare,
.hw_params = snd_mixart_hw_params,
.hw_free = snd_mixart_hw_free,
.trigger = snd_mixart_trigger,
.pointer = snd_mixart_stream_pointer,
};
static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm)
{
#if 0
struct snd_pcm_substream *subs;
int stream;
for (stream = 0; stream < 2; stream++) {
int idx = 0;
for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++)
/* set up the unique device id with the chip index */
subs->dma_device.id = subs->pcm->device << 16 |
subs->stream << 8 | (subs->number + 1) |
(chip->chip_idx + 1) << 24;
}
#endif
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024);
}
/*
*/
static int snd_mixart_pcm_analog(struct snd_mixart *chip)
{
int err;
struct snd_pcm *pcm;
char name[32];
sprintf(name, "miXart analog %d", chip->chip_idx);
if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG,
MIXART_PLAYBACK_STREAMS,
MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx);
return err;
}
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
pcm->info_flags = 0;
strcpy(pcm->name, name);
preallocate_buffers(chip, pcm);
chip->pcm = pcm;
return 0;
}
/*
*/
static int snd_mixart_pcm_digital(struct snd_mixart *chip)
{
int err;
struct snd_pcm *pcm;
char name[32];
sprintf(name, "miXart AES/EBU %d", chip->chip_idx);
if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL,
MIXART_PLAYBACK_STREAMS,
MIXART_CAPTURE_STREAMS, &pcm)) < 0) {
snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx);
return err;
}
pcm->private_data = chip;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops);
pcm->info_flags = 0;
strcpy(pcm->name, name);
preallocate_buffers(chip, pcm);
chip->pcm_dig = pcm;
return 0;
}
static int snd_mixart_chip_free(struct snd_mixart *chip)
{
kfree(chip);
return 0;
}
static int snd_mixart_chip_dev_free(struct snd_device *device)
{
struct snd_mixart *chip = device->device_data;