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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 __devinit 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 chip->rsrc[i].end -
885 chip->rsrc[i].start + 1);
886 }
887 }
888
889 if (chip->pdev)
890 pci_dev_put(chip->pdev);
891 of_node_put(chip->node);
892 kfree(chip);
893 return 0;
894}
895
896
897
898
899
900static int snd_pmac_dev_free(struct snd_device *device)
901{
902 struct snd_pmac *chip = device->device_data;
903 return snd_pmac_free(chip);
904}
905
906
907
908
909
910
911static void __devinit detect_byte_swap(struct snd_pmac *chip)
912{
913 struct device_node *mio;
914
915
916 for (mio = chip->node->parent; mio; mio = mio->parent) {
917 if (strcmp(mio->name, "mac-io") == 0) {
918 if (of_device_is_compatible(mio, "Keylargo"))
919 chip->can_byte_swap = 0;
920 break;
921 }
922 }
923
924
925 if (machine_is_compatible("PowerBook3,1") ||
926 machine_is_compatible("PowerBook2,1"))
927 chip->can_byte_swap = 0 ;
928
929 if (machine_is_compatible("PowerBook2,1"))
930 chip->can_duplex = 0;
931}
932
933
934
935
936
937static int __devinit snd_pmac_detect(struct snd_pmac *chip)
938{
939 struct device_node *sound;
940 struct device_node *dn;
941 const unsigned int *prop;
942 unsigned int l;
943 struct macio_chip* macio;
944
945 if (!machine_is(powermac))
946 return -ENODEV;
947
948 chip->subframe = 0;
949 chip->revision = 0;
950 chip->freqs_ok = 0xff;
951 chip->model = PMAC_AWACS;
952 chip->can_byte_swap = 1;
953 chip->can_duplex = 1;
954 chip->can_capture = 1;
955 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
956 chip->freq_table = awacs_freqs;
957 chip->pdev = NULL;
958
959 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11;
960
961
962 if (machine_is_compatible("AAPL,3400/2400")
963 || machine_is_compatible("AAPL,3500"))
964 chip->is_pbook_3400 = 1;
965 else if (machine_is_compatible("PowerBook1,1")
966 || machine_is_compatible("AAPL,PowerBook1998"))
967 chip->is_pbook_G3 = 1;
968 chip->node = of_find_node_by_name(NULL, "awacs");
969 sound = of_node_get(chip->node);
970
971
972
973
974
975 if (!chip->node)
976 chip->node = of_find_node_by_name(NULL, "davbus");
977
978
979
980
981 if (! chip->node) {
982 chip->node = of_find_node_by_name(NULL, "i2s-a");
983 if (chip->node && chip->node->parent &&
984 chip->node->parent->parent) {
985 if (of_device_is_compatible(chip->node->parent->parent,
986 "K2-Keylargo"))
987 chip->is_k2 = 1;
988 }
989 }
990 if (! chip->node)
991 return -ENODEV;
992
993 if (!sound) {
994 sound = of_find_node_by_name(NULL, "sound");
995 while (sound && sound->parent != chip->node)
996 sound = of_find_node_by_name(sound, "sound");
997 }
998 if (! sound) {
999 of_node_put(chip->node);
1000 chip->node = NULL;
1001 return -ENODEV;
1002 }
1003 prop = of_get_property(sound, "sub-frame", NULL);
1004 if (prop && *prop < 16)
1005 chip->subframe = *prop;
1006 prop = of_get_property(sound, "layout-id", NULL);
1007 if (prop) {
1008
1009
1010 printk(KERN_INFO "snd-powermac no longer handles any "
1011 "machines with a layout-id property "
1012 "in the device-tree, use snd-aoa.\n");
1013 of_node_put(sound);
1014 of_node_put(chip->node);
1015 chip->node = NULL;
1016 return -ENODEV;
1017 }
1018
1019 if (of_device_is_compatible(sound, "screamer")) {
1020 chip->model = PMAC_SCREAMER;
1021
1022 }
1023 if (of_device_is_compatible(sound, "burgundy")) {
1024 chip->model = PMAC_BURGUNDY;
1025 chip->control_mask = MASK_IEPC | 0x11;
1026 }
1027 if (of_device_is_compatible(sound, "daca")) {
1028 chip->model = PMAC_DACA;
1029 chip->can_capture = 0;
1030 chip->can_duplex = 0;
1031
1032 chip->control_mask = MASK_IEPC | 0x11;
1033 }
1034 if (of_device_is_compatible(sound, "tumbler")) {
1035 chip->model = PMAC_TUMBLER;
1036 chip->can_capture = machine_is_compatible("PowerMac4,2")
1037 || machine_is_compatible("PowerBook4,1");
1038 chip->can_duplex = 0;
1039
1040 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1041 chip->freq_table = tumbler_freqs;
1042 chip->control_mask = MASK_IEPC | 0x11;
1043 }
1044 if (of_device_is_compatible(sound, "snapper")) {
1045 chip->model = PMAC_SNAPPER;
1046
1047 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1048 chip->freq_table = tumbler_freqs;
1049 chip->control_mask = MASK_IEPC | 0x11;
1050 }
1051 prop = of_get_property(sound, "device-id", NULL);
1052 if (prop)
1053 chip->device_id = *prop;
1054 dn = of_find_node_by_name(NULL, "perch");
1055 chip->has_iic = (dn != NULL);
1056 of_node_put(dn);
1057
1058
1059
1060
1061 macio = macio_find(chip->node, macio_unknown);
1062 if (macio == NULL)
1063 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1064 else {
1065 struct pci_dev *pdev = NULL;
1066
1067 for_each_pci_dev(pdev) {
1068 struct device_node *np = pci_device_to_OF_node(pdev);
1069 if (np && np == macio->of_node) {
1070 chip->pdev = pdev;
1071 break;
1072 }
1073 }
1074 }
1075 if (chip->pdev == NULL)
1076 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1077 " device !\n");
1078
1079 detect_byte_swap(chip);
1080
1081
1082
1083 prop = of_get_property(sound, "sample-rates", &l);
1084 if (! prop)
1085 prop = of_get_property(sound, "output-frame-rates", &l);
1086 if (prop) {
1087 int i;
1088 chip->freqs_ok = 0;
1089 for (l /= sizeof(int); l > 0; --l) {
1090 unsigned int r = *prop++;
1091
1092 if (r >= 0x10000)
1093 r >>= 16;
1094 for (i = 0; i < chip->num_freqs; ++i) {
1095 if (r == chip->freq_table[i]) {
1096 chip->freqs_ok |= (1 << i);
1097 break;
1098 }
1099 }
1100 }
1101 } else {
1102
1103 chip->freqs_ok = 1;
1104 }
1105
1106 of_node_put(sound);
1107 return 0;
1108}
1109
1110#ifdef PMAC_SUPPORT_AUTOMUTE
1111
1112
1113
1114static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1115 struct snd_ctl_elem_value *ucontrol)
1116{
1117 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1118 ucontrol->value.integer.value[0] = chip->auto_mute;
1119 return 0;
1120}
1121
1122static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1123 struct snd_ctl_elem_value *ucontrol)
1124{
1125 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1126 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1127 chip->auto_mute = !!ucontrol->value.integer.value[0];
1128 if (chip->update_automute)
1129 chip->update_automute(chip, 1);
1130 return 1;
1131 }
1132 return 0;
1133}
1134
1135static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1136 struct snd_ctl_elem_value *ucontrol)
1137{
1138 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1139 if (chip->detect_headphone)
1140 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1141 else
1142 ucontrol->value.integer.value[0] = 0;
1143 return 0;
1144}
1145
1146static struct snd_kcontrol_new auto_mute_controls[] __devinitdata = {
1147 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1148 .name = "Auto Mute Switch",
1149 .info = snd_pmac_boolean_mono_info,
1150 .get = pmac_auto_mute_get,
1151 .put = pmac_auto_mute_put,
1152 },
1153 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1154 .name = "Headphone Detection",
1155 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1156 .info = snd_pmac_boolean_mono_info,
1157 .get = pmac_hp_detect_get,
1158 },
1159};
1160
1161int __devinit snd_pmac_add_automute(struct snd_pmac *chip)
1162{
1163 int err;
1164 chip->auto_mute = 1;
1165 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
1166 if (err < 0) {
1167 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
1168 return err;
1169 }
1170 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1171 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1172}
1173#endif
1174
1175
1176
1177
1178int __devinit snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
1179{
1180 struct snd_pmac *chip;
1181 struct device_node *np;
1182 int i, err;
1183 unsigned int irq;
1184 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
1185 static struct snd_device_ops ops = {
1186 .dev_free = snd_pmac_dev_free,
1187 };
1188
1189 *chip_return = NULL;
1190
1191 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1192 if (chip == NULL)
1193 return -ENOMEM;
1194 chip->card = card;
1195
1196 spin_lock_init(&chip->reg_lock);
1197 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1198
1199 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1200 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1201
1202 if ((err = snd_pmac_detect(chip)) < 0)
1203 goto __error;
1204
1205 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1206 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1207 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1208 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
1209 err = -ENOMEM;
1210 goto __error;
1211 }
1212
1213 np = chip->node;
1214 chip->requested = 0;
1215 if (chip->is_k2) {
1216 static char *rnames[] = {
1217 "Sound Control", "Sound DMA" };
1218 for (i = 0; i < 2; i ++) {
1219 if (of_address_to_resource(np->parent, i,
1220 &chip->rsrc[i])) {
1221 printk(KERN_ERR "snd: can't translate rsrc "
1222 " %d (%s)\n", i, rnames[i]);
1223 err = -ENODEV;
1224 goto __error;
1225 }
1226 if (request_mem_region(chip->rsrc[i].start,
1227 chip->rsrc[i].end -
1228 chip->rsrc[i].start + 1,
1229 rnames[i]) == NULL) {
1230 printk(KERN_ERR "snd: can't request rsrc "
1231 " %d (%s: 0x%016llx:%016llx)\n",
1232 i, rnames[i],
1233 (unsigned long long)chip->rsrc[i].start,
1234 (unsigned long long)chip->rsrc[i].end);
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 chip->rsrc[i].end -
1256 chip->rsrc[i].start + 1,
1257 rnames[i]) == NULL) {
1258 printk(KERN_ERR "snd: can't request rsrc "
1259 " %d (%s: 0x%016llx:%016llx)\n",
1260 i, rnames[i],
1261 (unsigned long long)chip->rsrc[i].start,
1262 (unsigned long long)chip->rsrc[i].end);
1263 err = -ENODEV;
1264 goto __error;
1265 }
1266 chip->requested |= (1 << i);
1267 }
1268 ctrl_addr = chip->rsrc[0].start;
1269 txdma_addr = chip->rsrc[1].start;
1270 rxdma_addr = chip->rsrc[2].start;
1271 }
1272
1273 chip->awacs = ioremap(ctrl_addr, 0x1000);
1274 chip->playback.dma = ioremap(txdma_addr, 0x100);
1275 chip->capture.dma = ioremap(rxdma_addr, 0x100);
1276 if (chip->model <= PMAC_BURGUNDY) {
1277 irq = irq_of_parse_and_map(np, 0);
1278 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
1279 "PMac", (void*)chip)) {
1280 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1281 irq);
1282 err = -EBUSY;
1283 goto __error;
1284 }
1285 chip->irq = irq;
1286 }
1287 irq = irq_of_parse_and_map(np, 1);
1288 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1289 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1290 err = -EBUSY;
1291 goto __error;
1292 }
1293 chip->tx_irq = irq;
1294 irq = irq_of_parse_and_map(np, 2);
1295 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1296 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1297 err = -EBUSY;
1298 goto __error;
1299 }
1300 chip->rx_irq = irq;
1301
1302 snd_pmac_sound_feature(chip, 1);
1303
1304
1305 if (chip->model <= PMAC_BURGUNDY)
1306 out_le32(&chip->awacs->control, chip->control_mask);
1307
1308
1309
1310
1311 if (chip->is_pbook_3400) {
1312
1313
1314
1315
1316
1317
1318
1319 chip->latch_base = ioremap (0xf301a000, 0x1000);
1320 in_8(chip->latch_base + 0x190);
1321 } else if (chip->is_pbook_G3) {
1322 struct device_node* mio;
1323 for (mio = chip->node->parent; mio; mio = mio->parent) {
1324 if (strcmp(mio->name, "mac-io") == 0) {
1325 struct resource r;
1326 if (of_address_to_resource(mio, 0, &r) == 0)
1327 chip->macio_base =
1328 ioremap(r.start, 0x40);
1329 break;
1330 }
1331 }
1332
1333
1334
1335
1336
1337
1338
1339
1340 if (chip->macio_base)
1341 out_8(chip->macio_base + 0x37, 3);
1342 }
1343
1344
1345 snd_pmac_dbdma_reset(chip);
1346
1347 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1348 goto __error;
1349
1350 *chip_return = chip;
1351 return 0;
1352
1353 __error:
1354 snd_pmac_free(chip);
1355 return err;
1356}
1357
1358
1359
1360
1361
1362
1363#ifdef CONFIG_PM
1364
1365
1366
1367
1368
1369void snd_pmac_suspend(struct snd_pmac *chip)
1370{
1371 unsigned long flags;
1372
1373 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1374 if (chip->suspend)
1375 chip->suspend(chip);
1376 snd_pcm_suspend_all(chip->pcm);
1377 spin_lock_irqsave(&chip->reg_lock, flags);
1378 snd_pmac_beep_stop(chip);
1379 spin_unlock_irqrestore(&chip->reg_lock, flags);
1380 if (chip->irq >= 0)
1381 disable_irq(chip->irq);
1382 if (chip->tx_irq >= 0)
1383 disable_irq(chip->tx_irq);
1384 if (chip->rx_irq >= 0)
1385 disable_irq(chip->rx_irq);
1386 snd_pmac_sound_feature(chip, 0);
1387}
1388
1389void snd_pmac_resume(struct snd_pmac *chip)
1390{
1391 snd_pmac_sound_feature(chip, 1);
1392 if (chip->resume)
1393 chip->resume(chip);
1394
1395 if (chip->macio_base && chip->is_pbook_G3)
1396 out_8(chip->macio_base + 0x37, 3);
1397 else if (chip->is_pbook_3400)
1398 in_8(chip->latch_base + 0x190);
1399
1400 snd_pmac_pcm_set_format(chip);
1401
1402 if (chip->irq >= 0)
1403 enable_irq(chip->irq);
1404 if (chip->tx_irq >= 0)
1405 enable_irq(chip->tx_irq);
1406 if (chip->rx_irq >= 0)
1407 enable_irq(chip->rx_irq);
1408
1409 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1410}
1411
1412#endif
1413
1414