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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 <linux/of_address.h>
32#include <linux/of_irq.h>
33#include <sound/core.h>
34#include "pmac.h"
35#include <sound/pcm_params.h>
36#include <asm/pmac_feature.h>
37#include <asm/pci-bridge.h>
38
39
40
41static int awacs_freqs[8] = {
42 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
43};
44
45static int tumbler_freqs[1] = {
46 44100
47};
48
49
50
51
52
53
54
55
56
57static struct pmac_dbdma emergency_dbdma;
58static int emergency_in_use;
59
60
61
62
63
64static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
65{
66 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
67
68 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
69 &rec->dma_base, GFP_KERNEL);
70 if (rec->space == NULL)
71 return -ENOMEM;
72 rec->size = size;
73 memset(rec->space, 0, rsize);
74 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
75 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
76
77 return 0;
78}
79
80static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
81{
82 if (rec->space) {
83 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
84
85 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
86 }
87}
88
89
90
91
92
93
94
95
96
97
98unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
99{
100 int i, ok, found;
101
102 ok = rec->cur_freqs;
103 if (rate > chip->freq_table[0])
104 return 0;
105 found = 0;
106 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
107 if (! (ok & 1)) continue;
108 found = i;
109 if (rate >= chip->freq_table[i])
110 break;
111 }
112 return found;
113}
114
115
116
117
118static inline int another_stream(int stream)
119{
120 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
121 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
122}
123
124
125
126
127static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
128 struct snd_pcm_hw_params *hw_params)
129{
130 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
131}
132
133
134
135
136static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
137{
138 snd_pcm_lib_free_pages(subs);
139 return 0;
140}
141
142
143
144
145static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
146{
147 switch (stream) {
148 case SNDRV_PCM_STREAM_PLAYBACK:
149 return &chip->playback;
150 case SNDRV_PCM_STREAM_CAPTURE:
151 return &chip->capture;
152 default:
153 snd_BUG();
154 return NULL;
155 }
156}
157
158
159
160
161static inline void
162snd_pmac_wait_ack(struct pmac_stream *rec)
163{
164 int timeout = 50000;
165 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
166 udelay(1);
167}
168
169
170
171
172
173static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
174{
175
176 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
177 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
178 if (chip->set_format)
179 chip->set_format(chip);
180}
181
182
183
184
185static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
186{
187 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
188 snd_pmac_wait_ack(rec);
189}
190
191
192
193
194static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
195{
196 out_le32(&rec->dma->cmdptr, cmd->addr);
197}
198
199
200
201
202static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
203{
204 out_le32(&rec->dma->control, status | (status << 16));
205}
206
207
208
209
210
211static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
212{
213 int i;
214 volatile struct dbdma_cmd __iomem *cp;
215 struct snd_pcm_runtime *runtime = subs->runtime;
216 int rate_index;
217 long offset;
218 struct pmac_stream *astr;
219
220 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
221 rec->period_size = snd_pcm_lib_period_bytes(subs);
222 rec->nperiods = rec->dma_size / rec->period_size;
223 rec->cur_period = 0;
224 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
225
226
227 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
228 if (! astr)
229 return -EINVAL;
230 astr->cur_freqs = 1 << rate_index;
231 astr->cur_formats = 1 << runtime->format;
232 chip->rate_index = rate_index;
233 chip->format = runtime->format;
234
235
236
237
238
239
240
241 spin_lock_irq(&chip->reg_lock);
242 snd_pmac_dma_stop(rec);
243 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
244 snd_pmac_dma_set_command(rec, &chip->extra_dma);
245 snd_pmac_dma_run(rec, RUN);
246 spin_unlock_irq(&chip->reg_lock);
247 mdelay(5);
248 spin_lock_irq(&chip->reg_lock);
249
250
251
252 offset = runtime->dma_addr;
253 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
254 st_le32(&cp->phy_addr, offset);
255 st_le16(&cp->req_count, rec->period_size);
256
257 st_le16(&cp->xfer_status, 0);
258 offset += rec->period_size;
259 }
260
261 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
262 st_le32(&cp->cmd_dep, rec->cmd.addr);
263
264 snd_pmac_dma_stop(rec);
265 snd_pmac_dma_set_command(rec, &rec->cmd);
266 spin_unlock_irq(&chip->reg_lock);
267
268 return 0;
269}
270
271
272
273
274
275static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
276 struct snd_pcm_substream *subs, int cmd)
277{
278 volatile struct dbdma_cmd __iomem *cp;
279 int i, command;
280
281 switch (cmd) {
282 case SNDRV_PCM_TRIGGER_START:
283 case SNDRV_PCM_TRIGGER_RESUME:
284 if (rec->running)
285 return -EBUSY;
286 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
287 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
288 spin_lock(&chip->reg_lock);
289 snd_pmac_beep_stop(chip);
290 snd_pmac_pcm_set_format(chip);
291 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
292 out_le16(&cp->command, command);
293 snd_pmac_dma_set_command(rec, &rec->cmd);
294 (void)in_le32(&rec->dma->status);
295 snd_pmac_dma_run(rec, RUN|WAKE);
296 rec->running = 1;
297 spin_unlock(&chip->reg_lock);
298 break;
299
300 case SNDRV_PCM_TRIGGER_STOP:
301 case SNDRV_PCM_TRIGGER_SUSPEND:
302 spin_lock(&chip->reg_lock);
303 rec->running = 0;
304
305 snd_pmac_dma_stop(rec);
306 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
307 out_le16(&cp->command, DBDMA_STOP);
308 spin_unlock(&chip->reg_lock);
309 break;
310
311 default:
312 return -EINVAL;
313 }
314
315 return 0;
316}
317
318
319
320
321inline
322static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
323 struct pmac_stream *rec,
324 struct snd_pcm_substream *subs)
325{
326 int count = 0;
327
328#if 1
329 int stat;
330 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
331 stat = ld_le16(&cp->xfer_status);
332 if (stat & (ACTIVE|DEAD)) {
333 count = in_le16(&cp->res_count);
334 if (count)
335 count = rec->period_size - count;
336 }
337#endif
338 count += rec->cur_period * rec->period_size;
339
340 return bytes_to_frames(subs->runtime, count);
341}
342
343
344
345
346
347static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
348{
349 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
350 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
351}
352
353static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
354 int cmd)
355{
356 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
357 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
358}
359
360static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
361{
362 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
363 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
364}
365
366
367
368
369
370
371static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
372{
373 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
374 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
375}
376
377static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
378 int cmd)
379{
380 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
381 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
382}
383
384static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
385{
386 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
387 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
388}
389
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411
412
413static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
414 volatile struct dbdma_cmd __iomem *cp)
415{
416 unsigned short req, res ;
417 unsigned int phy ;
418
419
420
421
422
423 (void)in_le32(&rec->dma->status);
424 out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
425
426 if (!emergency_in_use) {
427 memcpy((void *)emergency_dbdma.cmds, (void *)cp,
428 sizeof(struct dbdma_cmd));
429 emergency_in_use = 1;
430 st_le16(&cp->xfer_status, 0);
431 st_le16(&cp->req_count, rec->period_size);
432 cp = emergency_dbdma.cmds;
433 }
434
435
436
437 req = ld_le16(&cp->req_count);
438 res = ld_le16(&cp->res_count);
439 phy = ld_le32(&cp->phy_addr);
440 phy += (req - res);
441 st_le16(&cp->req_count, res);
442 st_le16(&cp->res_count, 0);
443 st_le16(&cp->xfer_status, 0);
444 st_le32(&cp->phy_addr, phy);
445
446 st_le32(&cp->cmd_dep, rec->cmd.addr
447 + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
448
449 st_le16(&cp->command, OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
450
451
452 out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
453
454
455 (void)in_le32(&rec->dma->status);
456
457 out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
458}
459
460
461
462
463static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
464{
465 volatile struct dbdma_cmd __iomem *cp;
466 int c;
467 int stat;
468
469 spin_lock(&chip->reg_lock);
470 if (rec->running) {
471 for (c = 0; c < rec->nperiods; c++) {
472
473 if (emergency_in_use)
474 cp = emergency_dbdma.cmds;
475 else
476 cp = &rec->cmd.cmds[rec->cur_period];
477
478 stat = ld_le16(&cp->xfer_status);
479
480 if (stat & DEAD) {
481 snd_pmac_pcm_dead_xfer(rec, cp);
482 break;
483 }
484
485 if (emergency_in_use)
486 emergency_in_use = 0 ;
487
488 if (! (stat & ACTIVE))
489 break;
490
491
492 st_le16(&cp->xfer_status, 0);
493 st_le16(&cp->req_count, rec->period_size);
494
495 rec->cur_period++;
496 if (rec->cur_period >= rec->nperiods) {
497 rec->cur_period = 0;
498 }
499
500 spin_unlock(&chip->reg_lock);
501 snd_pcm_period_elapsed(rec->substream);
502 spin_lock(&chip->reg_lock);
503 }
504 }
505 spin_unlock(&chip->reg_lock);
506}
507
508
509
510
511
512
513static struct snd_pcm_hardware snd_pmac_playback =
514{
515 .info = (SNDRV_PCM_INFO_INTERLEAVED |
516 SNDRV_PCM_INFO_MMAP |
517 SNDRV_PCM_INFO_MMAP_VALID |
518 SNDRV_PCM_INFO_RESUME),
519 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
520 .rates = SNDRV_PCM_RATE_8000_44100,
521 .rate_min = 7350,
522 .rate_max = 44100,
523 .channels_min = 2,
524 .channels_max = 2,
525 .buffer_bytes_max = 131072,
526 .period_bytes_min = 256,
527 .period_bytes_max = 16384,
528 .periods_min = 3,
529 .periods_max = PMAC_MAX_FRAGS,
530};
531
532static struct snd_pcm_hardware snd_pmac_capture =
533{
534 .info = (SNDRV_PCM_INFO_INTERLEAVED |
535 SNDRV_PCM_INFO_MMAP |
536 SNDRV_PCM_INFO_MMAP_VALID |
537 SNDRV_PCM_INFO_RESUME),
538 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
539 .rates = SNDRV_PCM_RATE_8000_44100,
540 .rate_min = 7350,
541 .rate_max = 44100,
542 .channels_min = 2,
543 .channels_max = 2,
544 .buffer_bytes_max = 131072,
545 .period_bytes_min = 256,
546 .period_bytes_max = 16384,
547 .periods_min = 3,
548 .periods_max = PMAC_MAX_FRAGS,
549};
550
551
552#if 0
553static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
554 struct snd_pcm_hw_rule *rule)
555{
556 struct snd_pmac *chip = rule->private;
557 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
558 int i, freq_table[8], num_freqs;
559
560 if (! rec)
561 return -EINVAL;
562 num_freqs = 0;
563 for (i = chip->num_freqs - 1; i >= 0; i--) {
564 if (rec->cur_freqs & (1 << i))
565 freq_table[num_freqs++] = chip->freq_table[i];
566 }
567
568 return snd_interval_list(hw_param_interval(params, rule->var),
569 num_freqs, freq_table, 0);
570}
571
572static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
573 struct snd_pcm_hw_rule *rule)
574{
575 struct snd_pmac *chip = rule->private;
576 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
577
578 if (! rec)
579 return -EINVAL;
580 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
581 rec->cur_formats);
582}
583#endif
584
585static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
586 struct snd_pcm_substream *subs)
587{
588 struct snd_pcm_runtime *runtime = subs->runtime;
589 int i;
590
591
592 runtime->hw.rates = 0;
593 for (i = 0; i < chip->num_freqs; i++)
594 if (chip->freqs_ok & (1 << i))
595 runtime->hw.rates |=
596 snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
597
598
599 for (i = 0; i < chip->num_freqs; i++) {
600 if (chip->freqs_ok & (1 << i)) {
601 runtime->hw.rate_max = chip->freq_table[i];
602 break;
603 }
604 }
605 for (i = chip->num_freqs - 1; i >= 0; i--) {
606 if (chip->freqs_ok & (1 << i)) {
607 runtime->hw.rate_min = chip->freq_table[i];
608 break;
609 }
610 }
611 runtime->hw.formats = chip->formats_ok;
612 if (chip->can_capture) {
613 if (! chip->can_duplex)
614 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
615 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
616 }
617 runtime->private_data = rec;
618 rec->substream = subs;
619
620#if 0
621 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
622 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
623 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
624 snd_pmac_hw_rule_format, chip, rec->stream, -1);
625#endif
626
627 runtime->hw.periods_max = rec->cmd.size - 1;
628
629
630 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
631 return 0;
632}
633
634static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
635 struct snd_pcm_substream *subs)
636{
637 struct pmac_stream *astr;
638
639 snd_pmac_dma_stop(rec);
640
641 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
642 if (! astr)
643 return -EINVAL;
644
645
646 astr->cur_freqs = chip->freqs_ok;
647 astr->cur_formats = chip->formats_ok;
648
649 return 0;
650}
651
652static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
653{
654 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
655
656 subs->runtime->hw = snd_pmac_playback;
657 return snd_pmac_pcm_open(chip, &chip->playback, subs);
658}
659
660static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
661{
662 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
663
664 subs->runtime->hw = snd_pmac_capture;
665 return snd_pmac_pcm_open(chip, &chip->capture, subs);
666}
667
668static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
669{
670 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
671
672 return snd_pmac_pcm_close(chip, &chip->playback, subs);
673}
674
675static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
676{
677 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
678
679 return snd_pmac_pcm_close(chip, &chip->capture, subs);
680}
681
682
683
684
685static struct snd_pcm_ops snd_pmac_playback_ops = {
686 .open = snd_pmac_playback_open,
687 .close = snd_pmac_playback_close,
688 .ioctl = snd_pcm_lib_ioctl,
689 .hw_params = snd_pmac_pcm_hw_params,
690 .hw_free = snd_pmac_pcm_hw_free,
691 .prepare = snd_pmac_playback_prepare,
692 .trigger = snd_pmac_playback_trigger,
693 .pointer = snd_pmac_playback_pointer,
694};
695
696static struct snd_pcm_ops snd_pmac_capture_ops = {
697 .open = snd_pmac_capture_open,
698 .close = snd_pmac_capture_close,
699 .ioctl = snd_pcm_lib_ioctl,
700 .hw_params = snd_pmac_pcm_hw_params,
701 .hw_free = snd_pmac_pcm_hw_free,
702 .prepare = snd_pmac_capture_prepare,
703 .trigger = snd_pmac_capture_trigger,
704 .pointer = snd_pmac_capture_pointer,
705};
706
707int snd_pmac_pcm_new(struct snd_pmac *chip)
708{
709 struct snd_pcm *pcm;
710 int err;
711 int num_captures = 1;
712
713 if (! chip->can_capture)
714 num_captures = 0;
715 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
716 if (err < 0)
717 return err;
718
719 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
720 if (chip->can_capture)
721 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
722
723 pcm->private_data = chip;
724 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
725 strcpy(pcm->name, chip->card->shortname);
726 chip->pcm = pcm;
727
728 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
729 if (chip->can_byte_swap)
730 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
731
732 chip->playback.cur_formats = chip->formats_ok;
733 chip->capture.cur_formats = chip->formats_ok;
734 chip->playback.cur_freqs = chip->freqs_ok;
735 chip->capture.cur_freqs = chip->freqs_ok;
736
737
738 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
739 &chip->pdev->dev,
740 64 * 1024, 64 * 1024);
741
742 return 0;
743}
744
745
746static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
747{
748 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
749 snd_pmac_wait_ack(&chip->playback);
750 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
751 snd_pmac_wait_ack(&chip->capture);
752}
753
754
755
756
757
758void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
759{
760 struct pmac_stream *rec = &chip->playback;
761
762 snd_pmac_dma_stop(rec);
763 st_le16(&chip->extra_dma.cmds->req_count, bytes);
764 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
765 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
766 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
767 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
768 out_le32(&chip->awacs->control,
769 (in_le32(&chip->awacs->control) & ~0x1f00)
770 | (speed << 8));
771 out_le32(&chip->awacs->byteswap, 0);
772 snd_pmac_dma_set_command(rec, &chip->extra_dma);
773 snd_pmac_dma_run(rec, RUN);
774}
775
776void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
777{
778 snd_pmac_dma_stop(&chip->playback);
779 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
780 snd_pmac_pcm_set_format(chip);
781}
782
783
784
785
786
787static irqreturn_t
788snd_pmac_tx_intr(int irq, void *devid)
789{
790 struct snd_pmac *chip = devid;
791 snd_pmac_pcm_update(chip, &chip->playback);
792 return IRQ_HANDLED;
793}
794
795
796static irqreturn_t
797snd_pmac_rx_intr(int irq, void *devid)
798{
799 struct snd_pmac *chip = devid;
800 snd_pmac_pcm_update(chip, &chip->capture);
801 return IRQ_HANDLED;
802}
803
804
805static irqreturn_t
806snd_pmac_ctrl_intr(int irq, void *devid)
807{
808 struct snd_pmac *chip = devid;
809 int ctrl = in_le32(&chip->awacs->control);
810
811
812 if (ctrl & MASK_PORTCHG) {
813
814 if (chip->update_automute)
815 chip->update_automute(chip, 1);
816 }
817 if (ctrl & MASK_CNTLERR) {
818 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
819 if (err && chip->model <= PMAC_SCREAMER)
820 snd_printk(KERN_DEBUG "error %x\n", err);
821 }
822
823 out_le32(&chip->awacs->control, ctrl);
824 return IRQ_HANDLED;
825}
826
827
828
829
830
831static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
832{
833 if (ppc_md.feature_call)
834 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
835}
836
837
838
839
840
841static int snd_pmac_free(struct snd_pmac *chip)
842{
843
844 if (chip->initialized) {
845 snd_pmac_dbdma_reset(chip);
846
847 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
848 }
849
850 if (chip->node)
851 snd_pmac_sound_feature(chip, 0);
852
853
854 if (chip->mixer_free)
855 chip->mixer_free(chip);
856
857 snd_pmac_detach_beep(chip);
858
859
860 if (chip->irq >= 0)
861 free_irq(chip->irq, (void*)chip);
862 if (chip->tx_irq >= 0)
863 free_irq(chip->tx_irq, (void*)chip);
864 if (chip->rx_irq >= 0)
865 free_irq(chip->rx_irq, (void*)chip);
866 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
867 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
868 snd_pmac_dbdma_free(chip, &chip->extra_dma);
869 snd_pmac_dbdma_free(chip, &emergency_dbdma);
870 if (chip->macio_base)
871 iounmap(chip->macio_base);
872 if (chip->latch_base)
873 iounmap(chip->latch_base);
874 if (chip->awacs)
875 iounmap(chip->awacs);
876 if (chip->playback.dma)
877 iounmap(chip->playback.dma);
878 if (chip->capture.dma)
879 iounmap(chip->capture.dma);
880
881 if (chip->node) {
882 int i;
883 for (i = 0; i < 3; i++) {
884 if (chip->requested & (1 << i))
885 release_mem_region(chip->rsrc[i].start,
886 resource_size(&chip->rsrc[i]));
887 }
888 }
889
890 if (chip->pdev)
891 pci_dev_put(chip->pdev);
892 of_node_put(chip->node);
893 kfree(chip);
894 return 0;
895}
896
897
898
899
900
901static int snd_pmac_dev_free(struct snd_device *device)
902{
903 struct snd_pmac *chip = device->device_data;
904 return snd_pmac_free(chip);
905}
906
907
908
909
910
911
912static void detect_byte_swap(struct snd_pmac *chip)
913{
914 struct device_node *mio;
915
916
917 for (mio = chip->node->parent; mio; mio = mio->parent) {
918 if (strcmp(mio->name, "mac-io") == 0) {
919 if (of_device_is_compatible(mio, "Keylargo"))
920 chip->can_byte_swap = 0;
921 break;
922 }
923 }
924
925
926 if (of_machine_is_compatible("PowerBook3,1") ||
927 of_machine_is_compatible("PowerBook2,1"))
928 chip->can_byte_swap = 0 ;
929
930 if (of_machine_is_compatible("PowerBook2,1"))
931 chip->can_duplex = 0;
932}
933
934
935
936
937
938static int snd_pmac_detect(struct snd_pmac *chip)
939{
940 struct device_node *sound;
941 struct device_node *dn;
942 const unsigned int *prop;
943 unsigned int l;
944 struct macio_chip* macio;
945
946 if (!machine_is(powermac))
947 return -ENODEV;
948
949 chip->subframe = 0;
950 chip->revision = 0;
951 chip->freqs_ok = 0xff;
952 chip->model = PMAC_AWACS;
953 chip->can_byte_swap = 1;
954 chip->can_duplex = 1;
955 chip->can_capture = 1;
956 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
957 chip->freq_table = awacs_freqs;
958 chip->pdev = NULL;
959
960 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11;
961
962
963 if (of_machine_is_compatible("AAPL,3400/2400")
964 || of_machine_is_compatible("AAPL,3500"))
965 chip->is_pbook_3400 = 1;
966 else if (of_machine_is_compatible("PowerBook1,1")
967 || of_machine_is_compatible("AAPL,PowerBook1998"))
968 chip->is_pbook_G3 = 1;
969 chip->node = of_find_node_by_name(NULL, "awacs");
970 sound = of_node_get(chip->node);
971
972
973
974
975
976 if (!chip->node)
977 chip->node = of_find_node_by_name(NULL, "davbus");
978
979
980
981
982 if (! chip->node) {
983 chip->node = of_find_node_by_name(NULL, "i2s-a");
984 if (chip->node && chip->node->parent &&
985 chip->node->parent->parent) {
986 if (of_device_is_compatible(chip->node->parent->parent,
987 "K2-Keylargo"))
988 chip->is_k2 = 1;
989 }
990 }
991 if (! chip->node)
992 return -ENODEV;
993
994 if (!sound) {
995 sound = of_find_node_by_name(NULL, "sound");
996 while (sound && sound->parent != chip->node)
997 sound = of_find_node_by_name(sound, "sound");
998 }
999 if (! sound) {
1000 of_node_put(chip->node);
1001 chip->node = NULL;
1002 return -ENODEV;
1003 }
1004 prop = of_get_property(sound, "sub-frame", NULL);
1005 if (prop && *prop < 16)
1006 chip->subframe = *prop;
1007 prop = of_get_property(sound, "layout-id", NULL);
1008 if (prop) {
1009
1010
1011 printk(KERN_INFO "snd-powermac no longer handles any "
1012 "machines with a layout-id property "
1013 "in the device-tree, use snd-aoa.\n");
1014 of_node_put(sound);
1015 of_node_put(chip->node);
1016 chip->node = NULL;
1017 return -ENODEV;
1018 }
1019
1020 if (of_device_is_compatible(sound, "screamer")) {
1021 chip->model = PMAC_SCREAMER;
1022
1023 }
1024 if (of_device_is_compatible(sound, "burgundy")) {
1025 chip->model = PMAC_BURGUNDY;
1026 chip->control_mask = MASK_IEPC | 0x11;
1027 }
1028 if (of_device_is_compatible(sound, "daca")) {
1029 chip->model = PMAC_DACA;
1030 chip->can_capture = 0;
1031 chip->can_duplex = 0;
1032
1033 chip->control_mask = MASK_IEPC | 0x11;
1034 }
1035 if (of_device_is_compatible(sound, "tumbler")) {
1036 chip->model = PMAC_TUMBLER;
1037 chip->can_capture = of_machine_is_compatible("PowerMac4,2")
1038 || of_machine_is_compatible("PowerBook3,2")
1039 || of_machine_is_compatible("PowerBook3,3")
1040 || of_machine_is_compatible("PowerBook4,1")
1041 || of_machine_is_compatible("PowerBook4,2")
1042 || of_machine_is_compatible("PowerBook4,3");
1043 chip->can_duplex = 0;
1044
1045 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1046 chip->freq_table = tumbler_freqs;
1047 chip->control_mask = MASK_IEPC | 0x11;
1048 }
1049 if (of_device_is_compatible(sound, "snapper")) {
1050 chip->model = PMAC_SNAPPER;
1051
1052 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1053 chip->freq_table = tumbler_freqs;
1054 chip->control_mask = MASK_IEPC | 0x11;
1055 }
1056 prop = of_get_property(sound, "device-id", NULL);
1057 if (prop)
1058 chip->device_id = *prop;
1059 dn = of_find_node_by_name(NULL, "perch");
1060 chip->has_iic = (dn != NULL);
1061 of_node_put(dn);
1062
1063
1064
1065
1066 macio = macio_find(chip->node, macio_unknown);
1067 if (macio == NULL)
1068 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1069 else {
1070 struct pci_dev *pdev = NULL;
1071
1072 for_each_pci_dev(pdev) {
1073 struct device_node *np = pci_device_to_OF_node(pdev);
1074 if (np && np == macio->of_node) {
1075 chip->pdev = pdev;
1076 break;
1077 }
1078 }
1079 }
1080 if (chip->pdev == NULL)
1081 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1082 " device !\n");
1083
1084 detect_byte_swap(chip);
1085
1086
1087
1088 prop = of_get_property(sound, "sample-rates", &l);
1089 if (! prop)
1090 prop = of_get_property(sound, "output-frame-rates", &l);
1091 if (prop) {
1092 int i;
1093 chip->freqs_ok = 0;
1094 for (l /= sizeof(int); l > 0; --l) {
1095 unsigned int r = *prop++;
1096
1097 if (r >= 0x10000)
1098 r >>= 16;
1099 for (i = 0; i < chip->num_freqs; ++i) {
1100 if (r == chip->freq_table[i]) {
1101 chip->freqs_ok |= (1 << i);
1102 break;
1103 }
1104 }
1105 }
1106 } else {
1107
1108 chip->freqs_ok = 1;
1109 }
1110
1111 of_node_put(sound);
1112 return 0;
1113}
1114
1115#ifdef PMAC_SUPPORT_AUTOMUTE
1116
1117
1118
1119static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1120 struct snd_ctl_elem_value *ucontrol)
1121{
1122 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1123 ucontrol->value.integer.value[0] = chip->auto_mute;
1124 return 0;
1125}
1126
1127static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1128 struct snd_ctl_elem_value *ucontrol)
1129{
1130 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1131 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1132 chip->auto_mute = !!ucontrol->value.integer.value[0];
1133 if (chip->update_automute)
1134 chip->update_automute(chip, 1);
1135 return 1;
1136 }
1137 return 0;
1138}
1139
1140static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1141 struct snd_ctl_elem_value *ucontrol)
1142{
1143 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1144 if (chip->detect_headphone)
1145 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1146 else
1147 ucontrol->value.integer.value[0] = 0;
1148 return 0;
1149}
1150
1151static struct snd_kcontrol_new auto_mute_controls[] = {
1152 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1153 .name = "Auto Mute Switch",
1154 .info = snd_pmac_boolean_mono_info,
1155 .get = pmac_auto_mute_get,
1156 .put = pmac_auto_mute_put,
1157 },
1158 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1159 .name = "Headphone Detection",
1160 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1161 .info = snd_pmac_boolean_mono_info,
1162 .get = pmac_hp_detect_get,
1163 },
1164};
1165
1166int snd_pmac_add_automute(struct snd_pmac *chip)
1167{
1168 int err;
1169 chip->auto_mute = 1;
1170 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
1171 if (err < 0) {
1172 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
1173 return err;
1174 }
1175 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1176 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1177}
1178#endif
1179
1180
1181
1182
1183int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
1184{
1185 struct snd_pmac *chip;
1186 struct device_node *np;
1187 int i, err;
1188 unsigned int irq;
1189 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
1190 static struct snd_device_ops ops = {
1191 .dev_free = snd_pmac_dev_free,
1192 };
1193
1194 *chip_return = NULL;
1195
1196 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1197 if (chip == NULL)
1198 return -ENOMEM;
1199 chip->card = card;
1200
1201 spin_lock_init(&chip->reg_lock);
1202 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1203
1204 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1205 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1206
1207 if ((err = snd_pmac_detect(chip)) < 0)
1208 goto __error;
1209
1210 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1211 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1212 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1213 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
1214 err = -ENOMEM;
1215 goto __error;
1216 }
1217
1218 np = chip->node;
1219 chip->requested = 0;
1220 if (chip->is_k2) {
1221 static char *rnames[] = {
1222 "Sound Control", "Sound DMA" };
1223 for (i = 0; i < 2; i ++) {
1224 if (of_address_to_resource(np->parent, i,
1225 &chip->rsrc[i])) {
1226 printk(KERN_ERR "snd: can't translate rsrc "
1227 " %d (%s)\n", i, rnames[i]);
1228 err = -ENODEV;
1229 goto __error;
1230 }
1231 if (request_mem_region(chip->rsrc[i].start,
1232 resource_size(&chip->rsrc[i]),
1233 rnames[i]) == NULL) {
1234 printk(KERN_ERR "snd: can't request rsrc "
1235 " %d (%s: %pR)\n",
1236 i, rnames[i], &chip->rsrc[i]);
1237 err = -ENODEV;
1238 goto __error;
1239 }
1240 chip->requested |= (1 << i);
1241 }
1242 ctrl_addr = chip->rsrc[0].start;
1243 txdma_addr = chip->rsrc[1].start;
1244 rxdma_addr = txdma_addr + 0x100;
1245 } else {
1246 static char *rnames[] = {
1247 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
1248 for (i = 0; i < 3; i ++) {
1249 if (of_address_to_resource(np, i,
1250 &chip->rsrc[i])) {
1251 printk(KERN_ERR "snd: can't translate rsrc "
1252 " %d (%s)\n", i, rnames[i]);
1253 err = -ENODEV;
1254 goto __error;
1255 }
1256 if (request_mem_region(chip->rsrc[i].start,
1257 resource_size(&chip->rsrc[i]),
1258 rnames[i]) == NULL) {
1259 printk(KERN_ERR "snd: can't request rsrc "
1260 " %d (%s: %pR)\n",
1261 i, rnames[i], &chip->rsrc[i]);
1262 err = -ENODEV;
1263 goto __error;
1264 }
1265 chip->requested |= (1 << i);
1266 }
1267 ctrl_addr = chip->rsrc[0].start;
1268 txdma_addr = chip->rsrc[1].start;
1269 rxdma_addr = chip->rsrc[2].start;
1270 }
1271
1272 chip->awacs = ioremap(ctrl_addr, 0x1000);
1273 chip->playback.dma = ioremap(txdma_addr, 0x100);
1274 chip->capture.dma = ioremap(rxdma_addr, 0x100);
1275 if (chip->model <= PMAC_BURGUNDY) {
1276 irq = irq_of_parse_and_map(np, 0);
1277 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
1278 "PMac", (void*)chip)) {
1279 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1280 irq);
1281 err = -EBUSY;
1282 goto __error;
1283 }
1284 chip->irq = irq;
1285 }
1286 irq = irq_of_parse_and_map(np, 1);
1287 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1288 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1289 err = -EBUSY;
1290 goto __error;
1291 }
1292 chip->tx_irq = irq;
1293 irq = irq_of_parse_and_map(np, 2);
1294 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1295 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1296 err = -EBUSY;
1297 goto __error;
1298 }
1299 chip->rx_irq = irq;
1300
1301 snd_pmac_sound_feature(chip, 1);
1302
1303
1304 if (chip->model <= PMAC_BURGUNDY)
1305 out_le32(&chip->awacs->control, chip->control_mask);
1306
1307
1308
1309
1310 if (chip->is_pbook_3400) {
1311
1312
1313
1314
1315
1316
1317
1318 chip->latch_base = ioremap (0xf301a000, 0x1000);
1319 in_8(chip->latch_base + 0x190);
1320 } else if (chip->is_pbook_G3) {
1321 struct device_node* mio;
1322 for (mio = chip->node->parent; mio; mio = mio->parent) {
1323 if (strcmp(mio->name, "mac-io") == 0) {
1324 struct resource r;
1325 if (of_address_to_resource(mio, 0, &r) == 0)
1326 chip->macio_base =
1327 ioremap(r.start, 0x40);
1328 break;
1329 }
1330 }
1331
1332
1333
1334
1335
1336
1337
1338
1339 if (chip->macio_base)
1340 out_8(chip->macio_base + 0x37, 3);
1341 }
1342
1343
1344 snd_pmac_dbdma_reset(chip);
1345
1346 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1347 goto __error;
1348
1349 *chip_return = chip;
1350 return 0;
1351
1352 __error:
1353 snd_pmac_free(chip);
1354 return err;
1355}
1356
1357
1358
1359
1360
1361
1362#ifdef CONFIG_PM
1363
1364
1365
1366
1367
1368void snd_pmac_suspend(struct snd_pmac *chip)
1369{
1370 unsigned long flags;
1371
1372 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1373 if (chip->suspend)
1374 chip->suspend(chip);
1375 snd_pcm_suspend_all(chip->pcm);
1376 spin_lock_irqsave(&chip->reg_lock, flags);
1377 snd_pmac_beep_stop(chip);
1378 spin_unlock_irqrestore(&chip->reg_lock, flags);
1379 if (chip->irq >= 0)
1380 disable_irq(chip->irq);
1381 if (chip->tx_irq >= 0)
1382 disable_irq(chip->tx_irq);
1383 if (chip->rx_irq >= 0)
1384 disable_irq(chip->rx_irq);
1385 snd_pmac_sound_feature(chip, 0);
1386}
1387
1388void snd_pmac_resume(struct snd_pmac *chip)
1389{
1390 snd_pmac_sound_feature(chip, 1);
1391 if (chip->resume)
1392 chip->resume(chip);
1393
1394 if (chip->macio_base && chip->is_pbook_G3)
1395 out_8(chip->macio_base + 0x37, 3);
1396 else if (chip->is_pbook_3400)
1397 in_8(chip->latch_base + 0x190);
1398
1399 snd_pmac_pcm_set_format(chip);
1400
1401 if (chip->irq >= 0)
1402 enable_irq(chip->irq);
1403 if (chip->tx_irq >= 0)
1404 enable_irq(chip->tx_irq);
1405 if (chip->rx_irq >= 0)
1406 enable_irq(chip->rx_irq);
1407
1408 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1409}
1410
1411#endif
1412
1413