forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathsnd_ps3.c
1163 lines (997 loc) · 28.7 KB
/
snd_ps3.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
/*
* Audio support for PS3
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* All rights reserved.
* Copyright 2006, 2007 Sony Corporation
*
* 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; version 2 of the Licence.
*
* 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/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <sound/asound.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/memalloc.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <asm/dma.h>
#include <asm/firmware.h>
#include <asm/lv1call.h>
#include <asm/ps3.h>
#include <asm/ps3av.h>
#include "snd_ps3.h"
#include "snd_ps3_reg.h"
/*
* global
*/
static struct snd_ps3_card_info the_card;
static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY;
module_param_named(start_delay, snd_ps3_start_delay, uint, 0644);
MODULE_PARM_DESC(start_delay, "time to insert silent data in ms");
static int index = SNDRV_DEFAULT_IDX1;
static char *id = SNDRV_DEFAULT_STR1;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for PS3 soundchip.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for PS3 soundchip.");
/*
* PS3 audio register access
*/
static inline u32 read_reg(unsigned int reg)
{
return in_be32(the_card.mapped_mmio_vaddr + reg);
}
static inline void write_reg(unsigned int reg, u32 val)
{
out_be32(the_card.mapped_mmio_vaddr + reg, val);
}
static inline void update_reg(unsigned int reg, u32 or_val)
{
u32 newval = read_reg(reg) | or_val;
write_reg(reg, newval);
}
static inline void update_mask_reg(unsigned int reg, u32 mask, u32 or_val)
{
u32 newval = (read_reg(reg) & mask) | or_val;
write_reg(reg, newval);
}
/*
* ALSA defs
*/
static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_NONINTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = (SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_S24_BE),
.rates = (SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000),
.rate_min = 44100,
.rate_max = 96000,
.channels_min = 2, /* stereo only */
.channels_max = 2,
.buffer_bytes_max = PS3_AUDIO_FIFO_SIZE * 64,
/* interrupt by four stages */
.period_bytes_min = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
.period_bytes_max = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
.periods_min = 16,
.periods_max = 32, /* buffer_size_max/ period_bytes_max */
.fifo_size = PS3_AUDIO_FIFO_SIZE
};
static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
int count, int force_stop)
{
int dma_ch, done, retries, stop_forced = 0;
uint32_t status;
for (dma_ch = 0; dma_ch < 8; dma_ch++) {
retries = count;
do {
status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
PS3_AUDIO_KICK_STATUS_MASK;
switch (status) {
case PS3_AUDIO_KICK_STATUS_DONE:
case PS3_AUDIO_KICK_STATUS_NOTIFY:
case PS3_AUDIO_KICK_STATUS_CLEAR:
case PS3_AUDIO_KICK_STATUS_ERROR:
done = 1;
break;
default:
done = 0;
udelay(10);
}
} while (!done && --retries);
if (!retries && force_stop) {
pr_info("%s: DMA ch %d is not stopped.",
__func__, dma_ch);
/* last resort. force to stop dma.
* NOTE: this cause DMA done interrupts
*/
update_reg(PS3_AUDIO_CONFIG, PS3_AUDIO_CONFIG_CLEAR);
stop_forced = 1;
}
}
return stop_forced;
}
/*
* wait for all dma is done.
* NOTE: caller should reset card->running before call.
* If not, the interrupt handler will re-start DMA,
* then DMA is never stopped.
*/
static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card)
{
int stop_forced;
/*
* wait for the last dma is done
*/
/*
* expected maximum DMA done time is 5.7ms + something (DMA itself).
* 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next
* DMA kick event would occur.
*/
stop_forced = snd_ps3_verify_dma_stop(card, 700, 1);
/*
* clear outstanding interrupts.
*/
update_reg(PS3_AUDIO_INTR_0, 0);
update_reg(PS3_AUDIO_AX_IS, 0);
/*
*revert CLEAR bit since it will not reset automatically after DMA stop
*/
if (stop_forced)
update_mask_reg(PS3_AUDIO_CONFIG, ~PS3_AUDIO_CONFIG_CLEAR, 0);
/* ensure the hardware sees changes */
wmb();
}
static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
{
update_reg(PS3_AUDIO_KICK(0), PS3_AUDIO_KICK_REQUEST);
/* ensure the hardware sees the change */
wmb();
}
/*
* convert virtual addr to ioif bus addr.
*/
static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
{
return card->dma_start_bus_addr[ch] +
(paddr - card->dma_start_vaddr[ch]);
};
/*
* increment ring buffer pointer.
* NOTE: caller must hold write spinlock
*/
static void snd_ps3_bump_buffer(struct snd_ps3_card_info *card,
enum snd_ps3_ch ch, size_t byte_count,
int stage)
{
if (!stage)
card->dma_last_transfer_vaddr[ch] =
card->dma_next_transfer_vaddr[ch];
card->dma_next_transfer_vaddr[ch] += byte_count;
if ((card->dma_start_vaddr[ch] + (card->dma_buffer_size / 2)) <=
card->dma_next_transfer_vaddr[ch]) {
card->dma_next_transfer_vaddr[ch] = card->dma_start_vaddr[ch];
}
}
/*
* setup dmac to send data to audio and attenuate samples on the ring buffer
*/
static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
enum snd_ps3_dma_filltype filltype)
{
/* this dmac does not support over 4G */
uint32_t dma_addr;
int fill_stages, dma_ch, stage;
enum snd_ps3_ch ch;
uint32_t ch0_kick_event = 0; /* initialize to mute gcc */
void *start_vaddr;
unsigned long irqsave;
int silent = 0;
switch (filltype) {
case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
silent = 1;
/* intentionally fall thru */
case SND_PS3_DMA_FILLTYPE_FIRSTFILL:
ch0_kick_event = PS3_AUDIO_KICK_EVENT_ALWAYS;
break;
case SND_PS3_DMA_FILLTYPE_SILENT_RUNNING:
silent = 1;
/* intentionally fall thru */
case SND_PS3_DMA_FILLTYPE_RUNNING:
ch0_kick_event = PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY;
break;
}
snd_ps3_verify_dma_stop(card, 700, 0);
fill_stages = 4;
spin_lock_irqsave(&card->dma_lock, irqsave);
for (ch = 0; ch < 2; ch++) {
start_vaddr = card->dma_next_transfer_vaddr[0];
for (stage = 0; stage < fill_stages; stage++) {
dma_ch = stage * 2 + ch;
if (silent)
dma_addr = card->null_buffer_start_dma_addr;
else
dma_addr =
v_to_bus(card,
card->dma_next_transfer_vaddr[ch],
ch);
write_reg(PS3_AUDIO_SOURCE(dma_ch),
(PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY |
dma_addr));
/* dst: fixed to 3wire#0 */
if (ch == 0)
write_reg(PS3_AUDIO_DEST(dma_ch),
(PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
PS3_AUDIO_AO_3W_LDATA(0)));
else
write_reg(PS3_AUDIO_DEST(dma_ch),
(PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
PS3_AUDIO_AO_3W_RDATA(0)));
/* count always 1 DMA block (1/2 stage = 128 bytes) */
write_reg(PS3_AUDIO_DMASIZE(dma_ch), 0);
/* bump pointer if needed */
if (!silent)
snd_ps3_bump_buffer(card, ch,
PS3_AUDIO_DMAC_BLOCK_SIZE,
stage);
/* kick event */
if (dma_ch == 0)
write_reg(PS3_AUDIO_KICK(dma_ch),
ch0_kick_event);
else
write_reg(PS3_AUDIO_KICK(dma_ch),
PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch
- 1) |
PS3_AUDIO_KICK_REQUEST);
}
}
/* ensure the hardware sees the change */
wmb();
spin_unlock_irqrestore(&card->dma_lock, irqsave);
return 0;
}
/*
* Interrupt handler
*/
static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
{
uint32_t port_intr;
int underflow_occured = 0;
struct snd_ps3_card_info *card = dev_id;
if (!card->running) {
update_reg(PS3_AUDIO_AX_IS, 0);
update_reg(PS3_AUDIO_INTR_0, 0);
return IRQ_HANDLED;
}
port_intr = read_reg(PS3_AUDIO_AX_IS);
/*
*serial buffer empty detected (every 4 times),
*program next dma and kick it
*/
if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, port_intr);
underflow_occured = 1;
}
if (card->silent) {
/* we are still in silent time */
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
snd_ps3_kick_dma(card);
card->silent--;
} else {
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_RUNNING);
snd_ps3_kick_dma(card);
snd_pcm_period_elapsed(card->substream);
}
} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
/*
* serial out underflow, but buffer empty not detected.
* in this case, fill fifo with 0 to recover. After
* filling dummy data, serial automatically start to
* consume them and then will generate normal buffer
* empty interrupts.
* If both buffer underflow and buffer empty are occurred,
* it is better to do nomal data transfer than empty one
*/
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
}
/* clear interrupt cause */
return IRQ_HANDLED;
};
/*
* audio mute on/off
* mute_on : 0 output enabled
* 1 mute
*/
static int snd_ps3_mute(int mute_on)
{
return ps3av_audio_mute(mute_on);
}
/*
* av setting
* NOTE: calling this function may generate audio interrupt.
*/
static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
{
int ret, retries, i;
pr_debug("%s: start\n", __func__);
ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
card->avs.avs_audio_rate,
card->avs.avs_audio_width,
card->avs.avs_audio_format,
card->avs.avs_audio_source);
/*
* Reset the following unwanted settings:
*/
/* disable all 3wire buffers */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
0);
wmb(); /* ensure the hardware sees the change */
/* wait for actually stopped */
retries = 1000;
while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
(PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
--retries) {
udelay(1);
}
/* reset buffer pointer */
for (i = 0; i < 4; i++) {
update_reg(PS3_AUDIO_AO_3WCTRL(i),
PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
udelay(10);
}
wmb(); /* ensure the hardware actually start resetting */
/* enable 3wire#0 buffer */
update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
/* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
~PS3_AUDIO_AO_3WCTRL_ASODF,
PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
~PS3_AUDIO_AO_SPDCTRL_SPODF,
PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
/* ensure all the setting above is written back to register */
wmb();
/* avsetting driver altered AX_IE, caller must reset it if you want */
pr_debug("%s: end\n", __func__);
return ret;
}
/*
* set sampling rate according to the substream
*/
static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
{
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
struct snd_ps3_avsetting_info avs;
int ret;
avs = card->avs;
pr_debug("%s: called freq=%d width=%d\n", __func__,
substream->runtime->rate,
snd_pcm_format_width(substream->runtime->format));
pr_debug("%s: before freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
/* sample rate */
switch (substream->runtime->rate) {
case 44100:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
break;
case 48000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
break;
case 88200:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
break;
case 96000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
break;
default:
pr_info("%s: invalid rate %d\n", __func__,
substream->runtime->rate);
return 1;
}
/* width */
switch (snd_pcm_format_width(substream->runtime->format)) {
case 16:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
break;
case 24:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
break;
default:
pr_info("%s: invalid width %d\n", __func__,
snd_pcm_format_width(substream->runtime->format));
return 1;
}
memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
if (memcmp(&card->avs, &avs, sizeof(avs))) {
pr_debug("%s: after freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
card->avs = avs;
snd_ps3_change_avsetting(card);
ret = 0;
} else
ret = 1;
/* check CS non-audio bit and mute accordingly */
if (avs.avs_cs_info[0] & 0x02)
ps3av_audio_mute_analog(1); /* mute if non-audio */
else
ps3av_audio_mute_analog(0);
return ret;
}
/*
* PCM operators
*/
static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
int pcm_index;
pcm_index = substream->pcm->device;
/* to retrieve substream/runtime in interrupt handler */
card->substream = substream;
runtime->hw = snd_ps3_pcm_hw;
card->start_delay = snd_ps3_start_delay;
/* mute off */
snd_ps3_mute(0); /* this function sleep */
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
return 0;
};
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
{
/* mute on */
snd_ps3_mute(1);
return 0;
};
static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
size_t size;
/* alloc transport buffer */
size = params_buffer_bytes(hw_params);
snd_pcm_lib_malloc_pages(substream, size);
return 0;
};
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
{
int ret;
ret = snd_pcm_lib_free_pages(substream);
return ret;
};
static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
unsigned int delay_ms)
{
int ret;
int rate ;
rate = substream->runtime->rate;
ret = snd_pcm_format_size(substream->runtime->format,
rate * delay_ms / 1000)
* substream->runtime->channels;
pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
__func__,
delay_ms,
rate,
snd_pcm_format_size(substream->runtime->format, rate),
rate * delay_ms / 1000,
ret);
return ret;
};
static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
unsigned long irqsave;
if (!snd_ps3_set_avsetting(substream)) {
/* some parameter changed */
write_reg(PS3_AUDIO_AX_IE,
PS3_AUDIO_AX_IE_ASOBEIE(0) |
PS3_AUDIO_AX_IE_ASOBUIE(0));
/*
* let SPDIF device re-lock with SPDIF signal,
* start with some silence
*/
card->silent = snd_ps3_delay_to_bytes(substream,
card->start_delay) /
(PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
}
/* restart ring buffer pointer */
spin_lock_irqsave(&card->dma_lock, irqsave);
{
card->dma_buffer_size = runtime->dma_bytes;
card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
card->dma_start_vaddr[SND_PS3_CH_L] =
runtime->dma_area;
card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
card->dma_start_vaddr[SND_PS3_CH_R] =
runtime->dma_area + (runtime->dma_bytes / 2);
card->dma_start_bus_addr[SND_PS3_CH_R] =
runtime->dma_addr + (runtime->dma_bytes / 2);
pr_debug("%s: vaddr=%p bus=%#llx\n", __func__,
card->dma_start_vaddr[SND_PS3_CH_L],
card->dma_start_bus_addr[SND_PS3_CH_L]);
}
spin_unlock_irqrestore(&card->dma_lock, irqsave);
/* ensure the hardware sees the change */
mb();
return 0;
};
static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
/* clear outstanding interrupts */
update_reg(PS3_AUDIO_AX_IS, 0);
spin_lock(&card->dma_lock);
{
card->running = 1;
}
spin_unlock(&card->dma_lock);
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
while (read_reg(PS3_AUDIO_KICK(7)) &
PS3_AUDIO_KICK_STATUS_MASK) {
udelay(1);
}
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
snd_ps3_kick_dma(card);
break;
case SNDRV_PCM_TRIGGER_STOP:
spin_lock(&card->dma_lock);
{
card->running = 0;
}
spin_unlock(&card->dma_lock);
snd_ps3_wait_for_dma_stop(card);
break;
default:
break;
}
return ret;
};
/*
* report current pointer
*/
static snd_pcm_uframes_t snd_ps3_pcm_pointer(
struct snd_pcm_substream *substream)
{
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
size_t bytes;
snd_pcm_uframes_t ret;
spin_lock(&card->dma_lock);
{
bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
card->dma_start_vaddr[SND_PS3_CH_L]);
}
spin_unlock(&card->dma_lock);
ret = bytes_to_frames(substream->runtime, bytes * 2);
return ret;
};
/*
* SPDIF status bits controls
*/
static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
memset(ucontrol->value.iec958.status, 0xff, 8);
return 0;
}
static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
return 0;
}
static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
return 0;
}
static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
return 1;
}
return 0;
}
static struct snd_kcontrol_new spdif_ctls[] = {
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_cmask_get,
},
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_pmask_get,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_default_get,
.put = snd_ps3_spdif_default_put,
},
};
static struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
.open = snd_ps3_pcm_open,
.close = snd_ps3_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ps3_pcm_hw_params,
.hw_free = snd_ps3_pcm_hw_free,
.prepare = snd_ps3_pcm_prepare,
.trigger = snd_ps3_pcm_trigger,
.pointer = snd_ps3_pcm_pointer,
};
static int snd_ps3_map_mmio(void)
{
the_card.mapped_mmio_vaddr =
ioremap(the_card.ps3_dev->m_region->bus_addr,
the_card.ps3_dev->m_region->len);
if (!the_card.mapped_mmio_vaddr) {
pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
__func__, the_card.ps3_dev->m_region->lpar_addr,
the_card.ps3_dev->m_region->len);
return -ENXIO;
}
return 0;
};
static void snd_ps3_unmap_mmio(void)
{
iounmap(the_card.mapped_mmio_vaddr);
the_card.mapped_mmio_vaddr = NULL;
}
static int snd_ps3_allocate_irq(void)
{
int ret;
u64 lpar_addr, lpar_size;
u64 __iomem *mapped;
/* FIXME: move this to device_init (H/W probe) */
/* get irq outlet */
ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
if (ret) {
pr_info("%s: device map 1 failed %d\n", __func__,
ret);
return -ENXIO;
}
mapped = ioremap(lpar_addr, lpar_size);
if (!mapped) {
pr_info("%s: ioremap 1 failed \n", __func__);
return -ENXIO;
}
the_card.audio_irq_outlet = in_be64(mapped);
iounmap(mapped);
ret = lv1_gpu_device_unmap(1);
if (ret)
pr_info("%s: unmap 1 failed\n", __func__);
/* irq */
ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
the_card.audio_irq_outlet,
&the_card.irq_no);
if (ret) {
pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
return ret;
}
ret = request_irq(the_card.irq_no, snd_ps3_interrupt, 0,
SND_PS3_DRIVER_NAME, &the_card);
if (ret) {
pr_info("%s: request_irq failed (%d)\n", __func__, ret);
goto cleanup_irq;
}
return 0;
cleanup_irq:
ps3_irq_plug_destroy(the_card.irq_no);
return ret;
};
static void snd_ps3_free_irq(void)
{
free_irq(the_card.irq_no, &the_card);
ps3_irq_plug_destroy(the_card.irq_no);
}
static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
{
uint64_t val;
int ret;
val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
(0x03UL << 24) |
(0x0fUL << 12) |
(PS3_AUDIO_IOID);
ret = lv1_gpu_attribute(0x100, 0x007, val);
if (ret)
pr_info("%s: gpu_attribute failed %d\n", __func__,
ret);
}
static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
{
/*
* avsetting driver seems to never change the followings
* so, init them here once
*/
/* no dma interrupt needed */
write_reg(PS3_AUDIO_INTR_EN_0, 0);
/* use every 4 buffer empty interrupt */
update_mask_reg(PS3_AUDIO_AX_IC,
PS3_AUDIO_AX_IC_AASOIMD_MASK,
PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
/* enable 3wire clocks */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
0);
update_reg(PS3_AUDIO_AO_3WMCTRL,
PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
}
static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
{
int ret;
pr_debug("%s: start\n", __func__);
card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
ret = snd_ps3_change_avsetting(card);
snd_ps3_audio_fixup(card);
/* to start to generate SPDIF signal, fill data */
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
pr_debug("%s: end\n", __func__);
return ret;
}
static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
{
int i, ret;
u64 lpar_addr, lpar_size;
if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
return -ENODEV;
if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
return -ENODEV;
the_card.ps3_dev = dev;
ret = ps3_open_hv_device(dev);
if (ret)
return -ENXIO;
/* setup MMIO */
ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
if (ret) {
pr_info("%s: device map 2 failed %d\n", __func__, ret);
goto clean_open;
}
ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
PAGE_SHIFT);
ret = snd_ps3_map_mmio();
if (ret)
goto clean_dev_map;
/* setup DMA area */
ps3_dma_region_init(dev, dev->d_region,
PAGE_SHIFT, /* use system page size */
0, /* dma type; not used */
NULL,
_ALIGN_UP(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
dev->d_region->ioid = PS3_AUDIO_IOID;
ret = ps3_dma_region_create(dev->d_region);
if (ret) {
pr_info("%s: region_create\n", __func__);
goto clean_mmio;
}
snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
/* CONFIG_SND_PS3_DEFAULT_START_DELAY */
the_card.start_delay = snd_ps3_start_delay;
/* irq */
if (snd_ps3_allocate_irq()) {
ret = -ENXIO;
goto clean_dma_region;
}
/* create card instance */
ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
0, &the_card.card);
if (ret < 0)
goto clean_irq;
strcpy(the_card.card->driver, "PS3");
strcpy(the_card.card->shortname, "PS3");
strcpy(the_card.card->longname, "PS3 sound");
/* create control elements */
for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
ret = snd_ctl_add(the_card.card,
snd_ctl_new1(&spdif_ctls[i], &the_card));
if (ret < 0)