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23#include <asm/io.h>
24#include <asm/irq.h>
25#include <linux/init.h>
26#include <linux/delay.h>
27#include <linux/slab.h>
28#include <linux/interrupt.h>
29#include <linux/pci.h>
30#include <linux/dma-mapping.h>
31#include <sound/core.h>
32#include "pmac.h"
33#include <sound/pcm_params.h>
34#include <asm/pmac_feature.h>
35#include <asm/pci-bridge.h>
36
37
38
39static int awacs_freqs[8] = {
40 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
41};
42
43static int tumbler_freqs[1] = {
44 44100
45};
46
47
48
49
50
51
52
53
54
55static struct pmac_dbdma emergency_dbdma;
56static int emergency_in_use;
57
58
59
60
61
62static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
63{
64 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
65
66 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
67 &rec->dma_base, GFP_KERNEL);
68 if (rec->space == NULL)
69 return -ENOMEM;
70 rec->size = size;
71 memset(rec->space, 0, rsize);
72 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
73 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
74
75 return 0;
76}
77
78static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
79{
80 if (rec->space) {
81 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
82
83 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
84 }
85}
86
87
88
89
90
91
92
93
94
95
96unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
97{
98 int i, ok, found;
99
100 ok = rec->cur_freqs;
101 if (rate > chip->freq_table[0])
102 return 0;
103 found = 0;
104 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
105 if (! (ok & 1)) continue;
106 found = i;
107 if (rate >= chip->freq_table[i])
108 break;
109 }
110 return found;
111}
112
113
114
115
116static inline int another_stream(int stream)
117{
118 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
119 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
120}
121
122
123
124
125static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
126 struct snd_pcm_hw_params *hw_params)
127{
128 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
129}
130
131
132
133
134static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
135{
136 snd_pcm_lib_free_pages(subs);
137 return 0;
138}
139
140
141
142
143static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
144{
145 switch (stream) {
146 case SNDRV_PCM_STREAM_PLAYBACK:
147 return &chip->playback;
148 case SNDRV_PCM_STREAM_CAPTURE:
149 return &chip->capture;
150 default:
151 snd_BUG();
152 return NULL;
153 }
154}
155
156
157
158
159static inline void
160snd_pmac_wait_ack(struct pmac_stream *rec)
161{
162 int timeout = 50000;
163 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
164 udelay(1);
165}
166
167
168
169
170
171static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
172{
173
174 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
175 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
176 if (chip->set_format)
177 chip->set_format(chip);
178}
179
180
181
182
183static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
184{
185 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
186 snd_pmac_wait_ack(rec);
187}
188
189
190
191
192static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
193{
194 out_le32(&rec->dma->cmdptr, cmd->addr);
195}
196
197
198
199
200static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
201{
202 out_le32(&rec->dma->control, status | (status << 16));
203}
204
205
206
207
208
209static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
210{
211 int i;
212 volatile struct dbdma_cmd __iomem *cp;
213 struct snd_pcm_runtime *runtime = subs->runtime;
214 int rate_index;
215 long offset;
216 struct pmac_stream *astr;
217
218 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
219 rec->period_size = snd_pcm_lib_period_bytes(subs);
220 rec->nperiods = rec->dma_size / rec->period_size;
221 rec->cur_period = 0;
222 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
223
224
225 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
226 if (! astr)
227 return -EINVAL;
228 astr->cur_freqs = 1 << rate_index;
229 astr->cur_formats = 1 << runtime->format;
230 chip->rate_index = rate_index;
231 chip->format = runtime->format;
232
233
234
235
236
237
238
239 spin_lock_irq(&chip->reg_lock);
240 snd_pmac_dma_stop(rec);
241 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
242 snd_pmac_dma_set_command(rec, &chip->extra_dma);
243 snd_pmac_dma_run(rec, RUN);
244 spin_unlock_irq(&chip->reg_lock);
245 mdelay(5);
246 spin_lock_irq(&chip->reg_lock);
247
248
249
250 offset = runtime->dma_addr;
251 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
252 st_le32(&cp->phy_addr, offset);
253 st_le16(&cp->req_count, rec->period_size);
254
255 st_le16(&cp->xfer_status, 0);
256 offset += rec->period_size;
257 }
258
259 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
260 st_le32(&cp->cmd_dep, rec->cmd.addr);
261
262 snd_pmac_dma_stop(rec);
263 snd_pmac_dma_set_command(rec, &rec->cmd);
264 spin_unlock_irq(&chip->reg_lock);
265
266 return 0;
267}
268
269
270
271
272
273static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
274 struct snd_pcm_substream *subs, int cmd)
275{
276 volatile struct dbdma_cmd __iomem *cp;
277 int i, command;
278
279 switch (cmd) {
280 case SNDRV_PCM_TRIGGER_START:
281 case SNDRV_PCM_TRIGGER_RESUME:
282 if (rec->running)
283 return -EBUSY;
284 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
285 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
286 spin_lock(&chip->reg_lock);
287 snd_pmac_beep_stop(chip);
288 snd_pmac_pcm_set_format(chip);
289 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
290 out_le16(&cp->command, command);
291 snd_pmac_dma_set_command(rec, &rec->cmd);
292 (void)in_le32(&rec->dma->status);
293 snd_pmac_dma_run(rec, RUN|WAKE);
294 rec->running = 1;
295 spin_unlock(&chip->reg_lock);
296 break;
297
298 case SNDRV_PCM_TRIGGER_STOP:
299 case SNDRV_PCM_TRIGGER_SUSPEND:
300 spin_lock(&chip->reg_lock);
301 rec->running = 0;
302
303 snd_pmac_dma_stop(rec);
304 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
305 out_le16(&cp->command, DBDMA_STOP);
306 spin_unlock(&chip->reg_lock);
307 break;
308
309 default:
310 return -EINVAL;
311 }
312
313 return 0;
314}
315
316
317
318
319inline
320static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
321 struct pmac_stream *rec,
322 struct snd_pcm_substream *subs)
323{
324 int count = 0;
325
326#if 1
327 int stat;
328 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
329 stat = ld_le16(&cp->xfer_status);
330 if (stat & (ACTIVE|DEAD)) {
331 count = in_le16(&cp->res_count);
332 if (count)
333 count = rec->period_size - count;
334 }
335#endif
336 count += rec->cur_period * rec->period_size;
337
338 return bytes_to_frames(subs->runtime, count);
339}
340
341
342
343
344
345static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
346{
347 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
348 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
349}
350
351static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
352 int cmd)
353{
354 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
355 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
356}
357
358static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
359{
360 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
361 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
362}
363
364
365
366
367
368
369static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
370{
371 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
372 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
373}
374
375static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
376 int cmd)
377{
378 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
379 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
380}
381
382static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
383{
384 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
385 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
386}
387
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409
410
411static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
412 volatile struct dbdma_cmd __iomem *cp)
413{
414 unsigned short req, res ;
415 unsigned int phy ;
416
417
418
419
420
421 (void)in_le32(&rec->dma->status);
422 out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
423
424 if (!emergency_in_use) {
425 memcpy((void *)emergency_dbdma.cmds, (void *)cp,
426 sizeof(struct dbdma_cmd));
427 emergency_in_use = 1;
428 st_le16(&cp->xfer_status, 0);
429 st_le16(&cp->req_count, rec->period_size);
430 cp = emergency_dbdma.cmds;
431 }
432
433
434
435 req = ld_le16(&cp->req_count);
436 res = ld_le16(&cp->res_count);
437 phy = ld_le32(&cp->phy_addr);
438 phy += (req - res);
439 st_le16(&cp->req_count, res);
440 st_le16(&cp->res_count, 0);
441 st_le16(&cp->xfer_status, 0);
442 st_le32(&cp->phy_addr, phy);
443
444 st_le32(&cp->cmd_dep, rec->cmd.addr
445 + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
446
447 st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
448
449
450 out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
451
452
453 (void)in_le32(&rec->dma->status);
454
455 out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
456}
457
458
459
460
461static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
462{
463 volatile struct dbdma_cmd __iomem *cp;
464 int c;
465 int stat;
466
467 spin_lock(&chip->reg_lock);
468 if (rec->running) {
469 for (c = 0; c < rec->nperiods; c++) {
470
471 if (emergency_in_use)
472 cp = emergency_dbdma.cmds;
473 else
474 cp = &rec->cmd.cmds[rec->cur_period];
475
476 stat = ld_le16(&cp->xfer_status);
477
478 if (stat & DEAD) {
479 snd_pmac_pcm_dead_xfer(rec, cp);
480 break;
481 }
482
483 if (emergency_in_use)
484 emergency_in_use = 0 ;
485
486 if (! (stat & ACTIVE))
487 break;
488
489
490 st_le16(&cp->xfer_status, 0);
491 st_le16(&cp->req_count, rec->period_size);
492
493 rec->cur_period++;
494 if (rec->cur_period >= rec->nperiods) {
495 rec->cur_period = 0;
496 }
497
498 spin_unlock(&chip->reg_lock);
499 snd_pcm_period_elapsed(rec->substream);
500 spin_lock(&chip->reg_lock);
501 }
502 }
503 spin_unlock(&chip->reg_lock);
504}
505
506
507
508
509
510
511static struct snd_pcm_hardware snd_pmac_playback =
512{
513 .info = (SNDRV_PCM_INFO_INTERLEAVED |
514 SNDRV_PCM_INFO_MMAP |
515 SNDRV_PCM_INFO_MMAP_VALID |
516 SNDRV_PCM_INFO_RESUME),
517 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
518 .rates = SNDRV_PCM_RATE_8000_44100,
519 .rate_min = 7350,
520 .rate_max = 44100,
521 .channels_min = 2,
522 .channels_max = 2,
523 .buffer_bytes_max = 131072,
524 .period_bytes_min = 256,
525 .period_bytes_max = 16384,
526 .periods_min = 3,
527 .periods_max = PMAC_MAX_FRAGS,
528};
529
530static struct snd_pcm_hardware snd_pmac_capture =
531{
532 .info = (SNDRV_PCM_INFO_INTERLEAVED |
533 SNDRV_PCM_INFO_MMAP |
534 SNDRV_PCM_INFO_MMAP_VALID |
535 SNDRV_PCM_INFO_RESUME),
536 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
537 .rates = SNDRV_PCM_RATE_8000_44100,
538 .rate_min = 7350,
539 .rate_max = 44100,
540 .channels_min = 2,
541 .channels_max = 2,
542 .buffer_bytes_max = 131072,
543 .period_bytes_min = 256,
544 .period_bytes_max = 16384,
545 .periods_min = 3,
546 .periods_max = PMAC_MAX_FRAGS,
547};
548
549
550#if 0
551static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
552 struct snd_pcm_hw_rule *rule)
553{
554 struct snd_pmac *chip = rule->private;
555 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
556 int i, freq_table[8], num_freqs;
557
558 if (! rec)
559 return -EINVAL;
560 num_freqs = 0;
561 for (i = chip->num_freqs - 1; i >= 0; i--) {
562 if (rec->cur_freqs & (1 << i))
563 freq_table[num_freqs++] = chip->freq_table[i];
564 }
565
566 return snd_interval_list(hw_param_interval(params, rule->var),
567 num_freqs, freq_table, 0);
568}
569
570static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
571 struct snd_pcm_hw_rule *rule)
572{
573 struct snd_pmac *chip = rule->private;
574 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
575
576 if (! rec)
577 return -EINVAL;
578 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
579 rec->cur_formats);
580}
581#endif
582
583static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
584 struct snd_pcm_substream *subs)
585{
586 struct snd_pcm_runtime *runtime = subs->runtime;
587 int i;
588
589
590 runtime->hw.rates = 0;
591 for (i = 0; i < chip->num_freqs; i++)
592 if (chip->freqs_ok & (1 << i))
593 runtime->hw.rates |=
594 snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
595
596
597 for (i = 0; i < chip->num_freqs; i++) {
598 if (chip->freqs_ok & (1 << i)) {
599 runtime->hw.rate_max = chip->freq_table[i];
600 break;
601 }
602 }
603 for (i = chip->num_freqs - 1; i >= 0; i--) {
604 if (chip->freqs_ok & (1 << i)) {
605 runtime->hw.rate_min = chip->freq_table[i];
606 break;
607 }
608 }
609 runtime->hw.formats = chip->formats_ok;
610 if (chip->can_capture) {
611 if (! chip->can_duplex)
612 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
613 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
614 }
615 runtime->private_data = rec;
616 rec->substream = subs;
617
618#if 0
619 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
620 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
621 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
622 snd_pmac_hw_rule_format, chip, rec->stream, -1);
623#endif
624
625 runtime->hw.periods_max = rec->cmd.size - 1;
626
627
628 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
629 return 0;
630}
631
632static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
633 struct snd_pcm_substream *subs)
634{
635 struct pmac_stream *astr;
636
637 snd_pmac_dma_stop(rec);
638
639 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
640 if (! astr)
641 return -EINVAL;
642
643
644 astr->cur_freqs = chip->freqs_ok;
645 astr->cur_formats = chip->formats_ok;
646
647 return 0;
648}
649
650static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
651{
652 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
653
654 subs->runtime->hw = snd_pmac_playback;
655 return snd_pmac_pcm_open(chip, &chip->playback, subs);
656}
657
658static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
659{
660 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
661
662 subs->runtime->hw = snd_pmac_capture;
663 return snd_pmac_pcm_open(chip, &chip->capture, subs);
664}
665
666static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
667{
668 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
669
670 return snd_pmac_pcm_close(chip, &chip->playback, subs);
671}
672
673static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
674{
675 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
676
677 return snd_pmac_pcm_close(chip, &chip->capture, subs);
678}
679
680
681
682
683static struct snd_pcm_ops snd_pmac_playback_ops = {
684 .open = snd_pmac_playback_open,
685 .close = snd_pmac_playback_close,
686 .ioctl = snd_pcm_lib_ioctl,
687 .hw_params = snd_pmac_pcm_hw_params,
688 .hw_free = snd_pmac_pcm_hw_free,
689 .prepare = snd_pmac_playback_prepare,
690 .trigger = snd_pmac_playback_trigger,
691 .pointer = snd_pmac_playback_pointer,
692};
693
694static struct snd_pcm_ops snd_pmac_capture_ops = {
695 .open = snd_pmac_capture_open,
696 .close = snd_pmac_capture_close,
697 .ioctl = snd_pcm_lib_ioctl,
698 .hw_params = snd_pmac_pcm_hw_params,
699 .hw_free = snd_pmac_pcm_hw_free,
700 .prepare = snd_pmac_capture_prepare,
701 .trigger = snd_pmac_capture_trigger,
702 .pointer = snd_pmac_capture_pointer,
703};
704
705int snd_pmac_pcm_new(struct snd_pmac *chip)
706{
707 struct snd_pcm *pcm;
708 int err;
709 int num_captures = 1;
710
711 if (! chip->can_capture)
712 num_captures = 0;
713 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
714 if (err < 0)
715 return err;
716
717 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
718 if (chip->can_capture)
719 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
720
721 pcm->private_data = chip;
722 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
723 strcpy(pcm->name, chip->card->shortname);
724 chip->pcm = pcm;
725
726 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
727 if (chip->can_byte_swap)
728 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
729
730 chip->playback.cur_formats = chip->formats_ok;
731 chip->capture.cur_formats = chip->formats_ok;
732 chip->playback.cur_freqs = chip->freqs_ok;
733 chip->capture.cur_freqs = chip->freqs_ok;
734
735
736 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
737 &chip->pdev->dev,
738 64 * 1024, 64 * 1024);
739
740 return 0;
741}
742
743
744static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
745{
746 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
747 snd_pmac_wait_ack(&chip->playback);
748 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
749 snd_pmac_wait_ack(&chip->capture);
750}
751
752
753
754
755
756void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
757{
758 struct pmac_stream *rec = &chip->playback;
759
760 snd_pmac_dma_stop(rec);
761 st_le16(&chip->extra_dma.cmds->req_count, bytes);
762 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
763 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
764 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
765 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
766 out_le32(&chip->awacs->control,
767 (in_le32(&chip->awacs->control) & ~0x1f00)
768 | (speed << 8));
769 out_le32(&chip->awacs->byteswap, 0);
770 snd_pmac_dma_set_command(rec, &chip->extra_dma);
771 snd_pmac_dma_run(rec, RUN);
772}
773
774void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
775{
776 snd_pmac_dma_stop(&chip->playback);
777 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
778 snd_pmac_pcm_set_format(chip);
779}
780
781
782
783
784
785static irqreturn_t
786snd_pmac_tx_intr(int irq, void *devid)
787{
788 struct snd_pmac *chip = devid;
789 snd_pmac_pcm_update(chip, &chip->playback);
790 return IRQ_HANDLED;
791}
792
793
794static irqreturn_t
795snd_pmac_rx_intr(int irq, void *devid)
796{
797 struct snd_pmac *chip = devid;
798 snd_pmac_pcm_update(chip, &chip->capture);
799 return IRQ_HANDLED;
800}
801
802
803static irqreturn_t
804snd_pmac_ctrl_intr(int irq, void *devid)
805{
806 struct snd_pmac *chip = devid;
807 int ctrl = in_le32(&chip->awacs->control);
808
809
810 if (ctrl & MASK_PORTCHG) {
811
812 if (chip->update_automute)
813 chip->update_automute(chip, 1);
814 }
815 if (ctrl & MASK_CNTLERR) {
816 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
817 if (err && chip->model <= PMAC_SCREAMER)
818 snd_printk(KERN_DEBUG "error %x\n", err);
819 }
820
821 out_le32(&chip->awacs->control, ctrl);
822 return IRQ_HANDLED;
823}
824
825
826
827
828
829static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
830{
831 if (ppc_md.feature_call)
832 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
833}
834
835
836
837
838
839static int snd_pmac_free(struct snd_pmac *chip)
840{
841
842 if (chip->initialized) {
843 snd_pmac_dbdma_reset(chip);
844
845 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
846 }
847
848 if (chip->node)
849 snd_pmac_sound_feature(chip, 0);
850
851
852 if (chip->mixer_free)
853 chip->mixer_free(chip);
854
855 snd_pmac_detach_beep(chip);
856
857
858 if (chip->irq >= 0)
859 free_irq(chip->irq, (void*)chip);
860 if (chip->tx_irq >= 0)
861 free_irq(chip->tx_irq, (void*)chip);
862 if (chip->rx_irq >= 0)
863 free_irq(chip->rx_irq, (void*)chip);
864 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
865 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
866 snd_pmac_dbdma_free(chip, &chip->extra_dma);
867 snd_pmac_dbdma_free(chip, &emergency_dbdma);
868 if (chip->macio_base)
869 iounmap(chip->macio_base);
870 if (chip->latch_base)
871 iounmap(chip->latch_base);
872 if (chip->awacs)
873 iounmap(chip->awacs);
874 if (chip->playback.dma)
875 iounmap(chip->playback.dma);
876 if (chip->capture.dma)
877 iounmap(chip->capture.dma);
878
879 if (chip->node) {
880 int i;
881 for (i = 0; i < 3; i++) {
882 if (chip->requested & (1 << i))
883 release_mem_region(chip->rsrc[i].start,
884 resource_size(&chip->rsrc[i]));
885 }
886 }
887
888 if (chip->pdev)
889 pci_dev_put(chip->pdev);
890 of_node_put(chip->node);
891 kfree(chip);
892 return 0;
893}
894
895
896
897
898
899static int snd_pmac_dev_free(struct snd_device *device)
900{
901 struct snd_pmac *chip = device->device_data;
902 return snd_pmac_free(chip);
903}
904
905
906
907
908
909
910static void detect_byte_swap(struct snd_pmac *chip)
911{
912 struct device_node *mio;
913
914
915 for (mio = chip->node->parent; mio; mio = mio->parent) {
916 if (strcmp(mio->name, "mac-io") == 0) {
917 if (of_device_is_compatible(mio, "Keylargo"))
918 chip->can_byte_swap = 0;
919 break;
920 }
921 }
922
923
924 if (of_machine_is_compatible("PowerBook3,1") ||
925 of_machine_is_compatible("PowerBook2,1"))
926 chip->can_byte_swap = 0 ;
927
928 if (of_machine_is_compatible("PowerBook2,1"))
929 chip->can_duplex = 0;
930}
931
932
933
934
935
936static int snd_pmac_detect(struct snd_pmac *chip)
937{
938 struct device_node *sound;
939 struct device_node *dn;
940 const unsigned int *prop;
941 unsigned int l;
942 struct macio_chip* macio;
943
944 if (!machine_is(powermac))
945 return -ENODEV;
946
947 chip->subframe = 0;
948 chip->revision = 0;
949 chip->freqs_ok = 0xff;
950 chip->model = PMAC_AWACS;
951 chip->can_byte_swap = 1;
952 chip->can_duplex = 1;
953 chip->can_capture = 1;
954 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
955 chip->freq_table = awacs_freqs;
956 chip->pdev = NULL;
957
958 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11;
959
960
961 if (of_machine_is_compatible("AAPL,3400/2400")
962 || of_machine_is_compatible("AAPL,3500"))
963 chip->is_pbook_3400 = 1;
964 else if (of_machine_is_compatible("PowerBook1,1")
965 || of_machine_is_compatible("AAPL,PowerBook1998"))
966 chip->is_pbook_G3 = 1;
967 chip->node = of_find_node_by_name(NULL, "awacs");
968 sound = of_node_get(chip->node);
969
970
971
972
973
974 if (!chip->node)
975 chip->node = of_find_node_by_name(NULL, "davbus");
976
977
978
979
980 if (! chip->node) {
981 chip->node = of_find_node_by_name(NULL, "i2s-a");
982 if (chip->node && chip->node->parent &&
983 chip->node->parent->parent) {
984 if (of_device_is_compatible(chip->node->parent->parent,
985 "K2-Keylargo"))
986 chip->is_k2 = 1;
987 }
988 }
989 if (! chip->node)
990 return -ENODEV;
991
992 if (!sound) {
993 sound = of_find_node_by_name(NULL, "sound");
994 while (sound && sound->parent != chip->node)
995 sound = of_find_node_by_name(sound, "sound");
996 }
997 if (! sound) {
998 of_node_put(chip->node);
999 chip->node = NULL;
1000 return -ENODEV;
1001 }
1002 prop = of_get_property(sound, "sub-frame", NULL);
1003 if (prop && *prop < 16)
1004 chip->subframe = *prop;
1005 prop = of_get_property(sound, "layout-id", NULL);
1006 if (prop) {
1007
1008
1009 printk(KERN_INFO "snd-powermac no longer handles any "
1010 "machines with a layout-id property "
1011 "in the device-tree, use snd-aoa.\n");
1012 of_node_put(sound);
1013 of_node_put(chip->node);
1014 chip->node = NULL;
1015 return -ENODEV;
1016 }
1017
1018 if (of_device_is_compatible(sound, "screamer")) {
1019 chip->model = PMAC_SCREAMER;
1020
1021 }
1022 if (of_device_is_compatible(sound, "burgundy")) {
1023 chip->model = PMAC_BURGUNDY;
1024 chip->control_mask = MASK_IEPC | 0x11;
1025 }
1026 if (of_device_is_compatible(sound, "daca")) {
1027 chip->model = PMAC_DACA;
1028 chip->can_capture = 0;
1029 chip->can_duplex = 0;
1030
1031 chip->control_mask = MASK_IEPC | 0x11;
1032 }
1033 if (of_device_is_compatible(sound, "tumbler")) {
1034 chip->model = PMAC_TUMBLER;
1035 chip->can_capture = of_machine_is_compatible("PowerMac4,2")
1036 || of_machine_is_compatible("PowerBook3,2")
1037 || of_machine_is_compatible("PowerBook3,3")
1038 || of_machine_is_compatible("PowerBook4,1")
1039 || of_machine_is_compatible("PowerBook4,2")
1040 || of_machine_is_compatible("PowerBook4,3");
1041 chip->can_duplex = 0;
1042
1043 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1044 chip->freq_table = tumbler_freqs;
1045 chip->control_mask = MASK_IEPC | 0x11;
1046 }
1047 if (of_device_is_compatible(sound, "snapper")) {
1048 chip->model = PMAC_SNAPPER;
1049
1050 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1051 chip->freq_table = tumbler_freqs;
1052 chip->control_mask = MASK_IEPC | 0x11;
1053 }
1054 prop = of_get_property(sound, "device-id", NULL);
1055 if (prop)
1056 chip->device_id = *prop;
1057 dn = of_find_node_by_name(NULL, "perch");
1058 chip->has_iic = (dn != NULL);
1059 of_node_put(dn);
1060
1061
1062
1063
1064 macio = macio_find(chip->node, macio_unknown);
1065 if (macio == NULL)
1066 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1067 else {
1068 struct pci_dev *pdev = NULL;
1069
1070 for_each_pci_dev(pdev) {
1071 struct device_node *np = pci_device_to_OF_node(pdev);
1072 if (np && np == macio->of_node) {
1073 chip->pdev = pdev;
1074 break;
1075 }
1076 }
1077 }
1078 if (chip->pdev == NULL)
1079 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1080 " device !\n");
1081
1082 detect_byte_swap(chip);
1083
1084
1085
1086 prop = of_get_property(sound, "sample-rates", &l);
1087 if (! prop)
1088 prop = of_get_property(sound, "output-frame-rates", &l);
1089 if (prop) {
1090 int i;
1091 chip->freqs_ok = 0;
1092 for (l /= sizeof(int); l > 0; --l) {
1093 unsigned int r = *prop++;
1094
1095 if (r >= 0x10000)
1096 r >>= 16;
1097 for (i = 0; i < chip->num_freqs; ++i) {
1098 if (r == chip->freq_table[i]) {
1099 chip->freqs_ok |= (1 << i);
1100 break;
1101 }
1102 }
1103 }
1104 } else {
1105
1106 chip->freqs_ok = 1;
1107 }
1108
1109 of_node_put(sound);
1110 return 0;
1111}
1112
1113#ifdef PMAC_SUPPORT_AUTOMUTE
1114
1115
1116
1117static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1118 struct snd_ctl_elem_value *ucontrol)
1119{
1120 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1121 ucontrol->value.integer.value[0] = chip->auto_mute;
1122 return 0;
1123}
1124
1125static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1126 struct snd_ctl_elem_value *ucontrol)
1127{
1128 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1129 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1130 chip->auto_mute = !!ucontrol->value.integer.value[0];
1131 if (chip->update_automute)
1132 chip->update_automute(chip, 1);
1133 return 1;
1134 }
1135 return 0;
1136}
1137
1138static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1139 struct snd_ctl_elem_value *ucontrol)
1140{
1141 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1142 if (chip->detect_headphone)
1143 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1144 else
1145 ucontrol->value.integer.value[0] = 0;
1146 return 0;
1147}
1148
1149static struct snd_kcontrol_new auto_mute_controls[] = {
1150 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1151 .name = "Auto Mute Switch",
1152 .info = snd_pmac_boolean_mono_info,
1153 .get = pmac_auto_mute_get,
1154 .put = pmac_auto_mute_put,
1155 },
1156 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1157 .name = "Headphone Detection",
1158 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1159 .info = snd_pmac_boolean_mono_info,
1160 .get = pmac_hp_detect_get,
1161 },
1162};
1163
1164int snd_pmac_add_automute(struct snd_pmac *chip)
1165{
1166 int err;
1167 chip->auto_mute = 1;
1168 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
1169 if (err < 0) {
1170 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
1171 return err;
1172 }
1173 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1174 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1175}
1176#endif
1177
1178
1179
1180
1181int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
1182{
1183 struct snd_pmac *chip;
1184 struct device_node *np;
1185 int i, err;
1186 unsigned int irq;
1187 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
1188 static struct snd_device_ops ops = {
1189 .dev_free = snd_pmac_dev_free,
1190 };
1191
1192 *chip_return = NULL;
1193
1194 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1195 if (chip == NULL)
1196 return -ENOMEM;
1197 chip->card = card;
1198
1199 spin_lock_init(&chip->reg_lock);
1200 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1201
1202 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1203 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1204
1205 if ((err = snd_pmac_detect(chip)) < 0)
1206 goto __error;
1207
1208 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1209 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1210 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1211 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
1212 err = -ENOMEM;
1213 goto __error;
1214 }
1215
1216 np = chip->node;
1217 chip->requested = 0;
1218 if (chip->is_k2) {
1219 static char *rnames[] = {
1220 "Sound Control", "Sound DMA" };
1221 for (i = 0; i < 2; i ++) {
1222 if (of_address_to_resource(np->parent, i,
1223 &chip->rsrc[i])) {
1224 printk(KERN_ERR "snd: can't translate rsrc "
1225 " %d (%s)\n", i, rnames[i]);
1226 err = -ENODEV;
1227 goto __error;
1228 }
1229 if (request_mem_region(chip->rsrc[i].start,
1230 resource_size(&chip->rsrc[i]),
1231 rnames[i]) == NULL) {
1232 printk(KERN_ERR "snd: can't request rsrc "
1233 " %d (%s: %pR)\n",
1234 i, rnames[i], &chip->rsrc[i]);
1235 err = -ENODEV;
1236 goto __error;
1237 }
1238 chip->requested |= (1 << i);
1239 }
1240 ctrl_addr = chip->rsrc[0].start;
1241 txdma_addr = chip->rsrc[1].start;
1242 rxdma_addr = txdma_addr + 0x100;
1243 } else {
1244 static char *rnames[] = {
1245 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
1246 for (i = 0; i < 3; i ++) {
1247 if (of_address_to_resource(np, i,
1248 &chip->rsrc[i])) {
1249 printk(KERN_ERR "snd: can't translate rsrc "
1250 " %d (%s)\n", i, rnames[i]);
1251 err = -ENODEV;
1252 goto __error;
1253 }
1254 if (request_mem_region(chip->rsrc[i].start,
1255 resource_size(&chip->rsrc[i]),
1256 rnames[i]) == NULL) {
1257 printk(KERN_ERR "snd: can't request rsrc "
1258 " %d (%s: %pR)\n",
1259 i, rnames[i], &chip->rsrc[i]);
1260 err = -ENODEV;
1261 goto __error;
1262 }
1263 chip->requested |= (1 << i);
1264 }
1265 ctrl_addr = chip->rsrc[0].start;
1266 txdma_addr = chip->rsrc[1].start;
1267 rxdma_addr = chip->rsrc[2].start;
1268 }
1269
1270 chip->awacs = ioremap(ctrl_addr, 0x1000);
1271 chip->playback.dma = ioremap(txdma_addr, 0x100);
1272 chip->capture.dma = ioremap(rxdma_addr, 0x100);
1273 if (chip->model <= PMAC_BURGUNDY) {
1274 irq = irq_of_parse_and_map(np, 0);
1275 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
1276 "PMac", (void*)chip)) {
1277 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1278 irq);
1279 err = -EBUSY;
1280 goto __error;
1281 }
1282 chip->irq = irq;
1283 }
1284 irq = irq_of_parse_and_map(np, 1);
1285 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1286 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1287 err = -EBUSY;
1288 goto __error;
1289 }
1290 chip->tx_irq = irq;
1291 irq = irq_of_parse_and_map(np, 2);
1292 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1293 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1294 err = -EBUSY;
1295 goto __error;
1296 }
1297 chip->rx_irq = irq;
1298
1299 snd_pmac_sound_feature(chip, 1);
1300
1301
1302 if (chip->model <= PMAC_BURGUNDY)
1303 out_le32(&chip->awacs->control, chip->control_mask);
1304
1305
1306
1307
1308 if (chip->is_pbook_3400) {
1309
1310
1311
1312
1313
1314
1315
1316 chip->latch_base = ioremap (0xf301a000, 0x1000);
1317 in_8(chip->latch_base + 0x190);
1318 } else if (chip->is_pbook_G3) {
1319 struct device_node* mio;
1320 for (mio = chip->node->parent; mio; mio = mio->parent) {
1321 if (strcmp(mio->name, "mac-io") == 0) {
1322 struct resource r;
1323 if (of_address_to_resource(mio, 0, &r) == 0)
1324 chip->macio_base =
1325 ioremap(r.start, 0x40);
1326 break;
1327 }
1328 }
1329
1330
1331
1332
1333
1334
1335
1336
1337 if (chip->macio_base)
1338 out_8(chip->macio_base + 0x37, 3);
1339 }
1340
1341
1342 snd_pmac_dbdma_reset(chip);
1343
1344 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1345 goto __error;
1346
1347 *chip_return = chip;
1348 return 0;
1349
1350 __error:
1351 snd_pmac_free(chip);
1352 return err;
1353}
1354
1355
1356
1357
1358
1359
1360#ifdef CONFIG_PM
1361
1362
1363
1364
1365
1366void snd_pmac_suspend(struct snd_pmac *chip)
1367{
1368 unsigned long flags;
1369
1370 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1371 if (chip->suspend)
1372 chip->suspend(chip);
1373 snd_pcm_suspend_all(chip->pcm);
1374 spin_lock_irqsave(&chip->reg_lock, flags);
1375 snd_pmac_beep_stop(chip);
1376 spin_unlock_irqrestore(&chip->reg_lock, flags);
1377 if (chip->irq >= 0)
1378 disable_irq(chip->irq);
1379 if (chip->tx_irq >= 0)
1380 disable_irq(chip->tx_irq);
1381 if (chip->rx_irq >= 0)
1382 disable_irq(chip->rx_irq);
1383 snd_pmac_sound_feature(chip, 0);
1384}
1385
1386void snd_pmac_resume(struct snd_pmac *chip)
1387{
1388 snd_pmac_sound_feature(chip, 1);
1389 if (chip->resume)
1390 chip->resume(chip);
1391
1392 if (chip->macio_base && chip->is_pbook_G3)
1393 out_8(chip->macio_base + 0x37, 3);
1394 else if (chip->is_pbook_3400)
1395 in_8(chip->latch_base + 0x190);
1396
1397 snd_pmac_pcm_set_format(chip);
1398
1399 if (chip->irq >= 0)
1400 enable_irq(chip->irq);
1401 if (chip->tx_irq >= 0)
1402 enable_irq(chip->tx_irq);
1403 if (chip->rx_irq >= 0)
1404 enable_irq(chip->rx_irq);
1405
1406 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1407}
1408
1409#endif
1410
1411