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10#include <linux/io.h>
11#include <asm/irq.h>
12#include <linux/init.h>
13#include <linux/delay.h>
14#include <linux/slab.h>
15#include <linux/interrupt.h>
16#include <linux/pci.h>
17#include <linux/dma-mapping.h>
18#include <linux/of_address.h>
19#include <linux/of_irq.h>
20#include <sound/core.h>
21#include "pmac.h"
22#include <sound/pcm_params.h>
23#include <asm/pmac_feature.h>
24
25
26
27static const int awacs_freqs[8] = {
28 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
29};
30
31static const int tumbler_freqs[1] = {
32 44100
33};
34
35
36
37
38
39
40
41
42
43static struct pmac_dbdma emergency_dbdma;
44static int emergency_in_use;
45
46
47
48
49
50static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
51{
52 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
53
54 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
55 &rec->dma_base, GFP_KERNEL);
56 if (rec->space == NULL)
57 return -ENOMEM;
58 rec->size = size;
59 memset(rec->space, 0, rsize);
60 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
61 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
62
63 return 0;
64}
65
66static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
67{
68 if (rec->space) {
69 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
70
71 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
72 }
73}
74
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81
82
83
84unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
85{
86 int i, ok, found;
87
88 ok = rec->cur_freqs;
89 if (rate > chip->freq_table[0])
90 return 0;
91 found = 0;
92 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
93 if (! (ok & 1)) continue;
94 found = i;
95 if (rate >= chip->freq_table[i])
96 break;
97 }
98 return found;
99}
100
101
102
103
104static inline int another_stream(int stream)
105{
106 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
107 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
108}
109
110
111
112
113static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
114{
115 switch (stream) {
116 case SNDRV_PCM_STREAM_PLAYBACK:
117 return &chip->playback;
118 case SNDRV_PCM_STREAM_CAPTURE:
119 return &chip->capture;
120 default:
121 snd_BUG();
122 return NULL;
123 }
124}
125
126
127
128
129static inline void
130snd_pmac_wait_ack(struct pmac_stream *rec)
131{
132 int timeout = 50000;
133 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
134 udelay(1);
135}
136
137
138
139
140
141static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
142{
143
144 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
145 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
146 if (chip->set_format)
147 chip->set_format(chip);
148}
149
150
151
152
153static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
154{
155 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
156 snd_pmac_wait_ack(rec);
157}
158
159
160
161
162static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
163{
164 out_le32(&rec->dma->cmdptr, cmd->addr);
165}
166
167
168
169
170static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
171{
172 out_le32(&rec->dma->control, status | (status << 16));
173}
174
175
176
177
178
179static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
180{
181 int i;
182 volatile struct dbdma_cmd __iomem *cp;
183 struct snd_pcm_runtime *runtime = subs->runtime;
184 int rate_index;
185 long offset;
186 struct pmac_stream *astr;
187
188 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
189 rec->period_size = snd_pcm_lib_period_bytes(subs);
190 rec->nperiods = rec->dma_size / rec->period_size;
191 rec->cur_period = 0;
192 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
193
194
195 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
196 if (! astr)
197 return -EINVAL;
198 astr->cur_freqs = 1 << rate_index;
199 astr->cur_formats = 1 << runtime->format;
200 chip->rate_index = rate_index;
201 chip->format = runtime->format;
202
203
204
205
206
207
208
209 spin_lock_irq(&chip->reg_lock);
210 snd_pmac_dma_stop(rec);
211 chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
212 snd_pmac_dma_set_command(rec, &chip->extra_dma);
213 snd_pmac_dma_run(rec, RUN);
214 spin_unlock_irq(&chip->reg_lock);
215 mdelay(5);
216 spin_lock_irq(&chip->reg_lock);
217
218
219
220 offset = runtime->dma_addr;
221 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
222 cp->phy_addr = cpu_to_le32(offset);
223 cp->req_count = cpu_to_le16(rec->period_size);
224
225 cp->xfer_status = cpu_to_le16(0);
226 offset += rec->period_size;
227 }
228
229 cp->command = cpu_to_le16(DBDMA_NOP | BR_ALWAYS);
230 cp->cmd_dep = cpu_to_le32(rec->cmd.addr);
231
232 snd_pmac_dma_stop(rec);
233 snd_pmac_dma_set_command(rec, &rec->cmd);
234 spin_unlock_irq(&chip->reg_lock);
235
236 return 0;
237}
238
239
240
241
242
243static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
244 struct snd_pcm_substream *subs, int cmd)
245{
246 volatile struct dbdma_cmd __iomem *cp;
247 int i, command;
248
249 switch (cmd) {
250 case SNDRV_PCM_TRIGGER_START:
251 case SNDRV_PCM_TRIGGER_RESUME:
252 if (rec->running)
253 return -EBUSY;
254 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
255 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
256 spin_lock(&chip->reg_lock);
257 snd_pmac_beep_stop(chip);
258 snd_pmac_pcm_set_format(chip);
259 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
260 out_le16(&cp->command, command);
261 snd_pmac_dma_set_command(rec, &rec->cmd);
262 (void)in_le32(&rec->dma->status);
263 snd_pmac_dma_run(rec, RUN|WAKE);
264 rec->running = 1;
265 spin_unlock(&chip->reg_lock);
266 break;
267
268 case SNDRV_PCM_TRIGGER_STOP:
269 case SNDRV_PCM_TRIGGER_SUSPEND:
270 spin_lock(&chip->reg_lock);
271 rec->running = 0;
272
273 snd_pmac_dma_stop(rec);
274 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
275 out_le16(&cp->command, DBDMA_STOP);
276 spin_unlock(&chip->reg_lock);
277 break;
278
279 default:
280 return -EINVAL;
281 }
282
283 return 0;
284}
285
286
287
288
289inline
290static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
291 struct pmac_stream *rec,
292 struct snd_pcm_substream *subs)
293{
294 int count = 0;
295
296#if 1
297 int stat;
298 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
299 stat = le16_to_cpu(cp->xfer_status);
300 if (stat & (ACTIVE|DEAD)) {
301 count = in_le16(&cp->res_count);
302 if (count)
303 count = rec->period_size - count;
304 }
305#endif
306 count += rec->cur_period * rec->period_size;
307
308 return bytes_to_frames(subs->runtime, count);
309}
310
311
312
313
314
315static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
316{
317 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
318 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
319}
320
321static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
322 int cmd)
323{
324 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
325 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
326}
327
328static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
329{
330 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
331 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
332}
333
334
335
336
337
338
339static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
340{
341 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
342 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
343}
344
345static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
346 int cmd)
347{
348 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
349 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
350}
351
352static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
353{
354 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
355 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
356}
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380
381static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
382 volatile struct dbdma_cmd __iomem *cp)
383{
384 unsigned short req, res ;
385 unsigned int phy ;
386
387
388
389
390
391 (void)in_le32(&rec->dma->status);
392 out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
393
394 if (!emergency_in_use) {
395 memcpy((void *)emergency_dbdma.cmds, (void *)cp,
396 sizeof(struct dbdma_cmd));
397 emergency_in_use = 1;
398 cp->xfer_status = cpu_to_le16(0);
399 cp->req_count = cpu_to_le16(rec->period_size);
400 cp = emergency_dbdma.cmds;
401 }
402
403
404
405 req = le16_to_cpu(cp->req_count);
406 res = le16_to_cpu(cp->res_count);
407 phy = le32_to_cpu(cp->phy_addr);
408 phy += (req - res);
409 cp->req_count = cpu_to_le16(res);
410 cp->res_count = cpu_to_le16(0);
411 cp->xfer_status = cpu_to_le16(0);
412 cp->phy_addr = cpu_to_le32(phy);
413
414 cp->cmd_dep = cpu_to_le32(rec->cmd.addr
415 + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
416
417 cp->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
418
419
420 out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
421
422
423 (void)in_le32(&rec->dma->status);
424
425 out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
426}
427
428
429
430
431static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
432{
433 volatile struct dbdma_cmd __iomem *cp;
434 int c;
435 int stat;
436
437 spin_lock(&chip->reg_lock);
438 if (rec->running) {
439 for (c = 0; c < rec->nperiods; c++) {
440
441 if (emergency_in_use)
442 cp = emergency_dbdma.cmds;
443 else
444 cp = &rec->cmd.cmds[rec->cur_period];
445
446 stat = le16_to_cpu(cp->xfer_status);
447
448 if (stat & DEAD) {
449 snd_pmac_pcm_dead_xfer(rec, cp);
450 break;
451 }
452
453 if (emergency_in_use)
454 emergency_in_use = 0 ;
455
456 if (! (stat & ACTIVE))
457 break;
458
459
460 cp->xfer_status = cpu_to_le16(0);
461 cp->req_count = cpu_to_le16(rec->period_size);
462
463 rec->cur_period++;
464 if (rec->cur_period >= rec->nperiods) {
465 rec->cur_period = 0;
466 }
467
468 spin_unlock(&chip->reg_lock);
469 snd_pcm_period_elapsed(rec->substream);
470 spin_lock(&chip->reg_lock);
471 }
472 }
473 spin_unlock(&chip->reg_lock);
474}
475
476
477
478
479
480
481static const struct snd_pcm_hardware snd_pmac_playback =
482{
483 .info = (SNDRV_PCM_INFO_INTERLEAVED |
484 SNDRV_PCM_INFO_MMAP |
485 SNDRV_PCM_INFO_MMAP_VALID |
486 SNDRV_PCM_INFO_RESUME),
487 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
488 .rates = SNDRV_PCM_RATE_8000_44100,
489 .rate_min = 7350,
490 .rate_max = 44100,
491 .channels_min = 2,
492 .channels_max = 2,
493 .buffer_bytes_max = 131072,
494 .period_bytes_min = 256,
495 .period_bytes_max = 16384,
496 .periods_min = 3,
497 .periods_max = PMAC_MAX_FRAGS,
498};
499
500static const struct snd_pcm_hardware snd_pmac_capture =
501{
502 .info = (SNDRV_PCM_INFO_INTERLEAVED |
503 SNDRV_PCM_INFO_MMAP |
504 SNDRV_PCM_INFO_MMAP_VALID |
505 SNDRV_PCM_INFO_RESUME),
506 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
507 .rates = SNDRV_PCM_RATE_8000_44100,
508 .rate_min = 7350,
509 .rate_max = 44100,
510 .channels_min = 2,
511 .channels_max = 2,
512 .buffer_bytes_max = 131072,
513 .period_bytes_min = 256,
514 .period_bytes_max = 16384,
515 .periods_min = 3,
516 .periods_max = PMAC_MAX_FRAGS,
517};
518
519
520#if 0
521static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
522 struct snd_pcm_hw_rule *rule)
523{
524 struct snd_pmac *chip = rule->private;
525 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
526 int i, freq_table[8], num_freqs;
527
528 if (! rec)
529 return -EINVAL;
530 num_freqs = 0;
531 for (i = chip->num_freqs - 1; i >= 0; i--) {
532 if (rec->cur_freqs & (1 << i))
533 freq_table[num_freqs++] = chip->freq_table[i];
534 }
535
536 return snd_interval_list(hw_param_interval(params, rule->var),
537 num_freqs, freq_table, 0);
538}
539
540static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
541 struct snd_pcm_hw_rule *rule)
542{
543 struct snd_pmac *chip = rule->private;
544 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
545
546 if (! rec)
547 return -EINVAL;
548 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
549 rec->cur_formats);
550}
551#endif
552
553static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
554 struct snd_pcm_substream *subs)
555{
556 struct snd_pcm_runtime *runtime = subs->runtime;
557 int i;
558
559
560 runtime->hw.rates = 0;
561 for (i = 0; i < chip->num_freqs; i++)
562 if (chip->freqs_ok & (1 << i))
563 runtime->hw.rates |=
564 snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
565
566
567 for (i = 0; i < chip->num_freqs; i++) {
568 if (chip->freqs_ok & (1 << i)) {
569 runtime->hw.rate_max = chip->freq_table[i];
570 break;
571 }
572 }
573 for (i = chip->num_freqs - 1; i >= 0; i--) {
574 if (chip->freqs_ok & (1 << i)) {
575 runtime->hw.rate_min = chip->freq_table[i];
576 break;
577 }
578 }
579 runtime->hw.formats = chip->formats_ok;
580 if (chip->can_capture) {
581 if (! chip->can_duplex)
582 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
583 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
584 }
585 runtime->private_data = rec;
586 rec->substream = subs;
587
588#if 0
589 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
590 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
591 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
592 snd_pmac_hw_rule_format, chip, rec->stream, -1);
593#endif
594
595 runtime->hw.periods_max = rec->cmd.size - 1;
596
597
598 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
599 return 0;
600}
601
602static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
603 struct snd_pcm_substream *subs)
604{
605 struct pmac_stream *astr;
606
607 snd_pmac_dma_stop(rec);
608
609 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
610 if (! astr)
611 return -EINVAL;
612
613
614 astr->cur_freqs = chip->freqs_ok;
615 astr->cur_formats = chip->formats_ok;
616
617 return 0;
618}
619
620static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
621{
622 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
623
624 subs->runtime->hw = snd_pmac_playback;
625 return snd_pmac_pcm_open(chip, &chip->playback, subs);
626}
627
628static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
629{
630 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
631
632 subs->runtime->hw = snd_pmac_capture;
633 return snd_pmac_pcm_open(chip, &chip->capture, subs);
634}
635
636static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
637{
638 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
639
640 return snd_pmac_pcm_close(chip, &chip->playback, subs);
641}
642
643static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
644{
645 struct snd_pmac *chip = snd_pcm_substream_chip(subs);
646
647 return snd_pmac_pcm_close(chip, &chip->capture, subs);
648}
649
650
651
652
653static const struct snd_pcm_ops snd_pmac_playback_ops = {
654 .open = snd_pmac_playback_open,
655 .close = snd_pmac_playback_close,
656 .prepare = snd_pmac_playback_prepare,
657 .trigger = snd_pmac_playback_trigger,
658 .pointer = snd_pmac_playback_pointer,
659};
660
661static const struct snd_pcm_ops snd_pmac_capture_ops = {
662 .open = snd_pmac_capture_open,
663 .close = snd_pmac_capture_close,
664 .prepare = snd_pmac_capture_prepare,
665 .trigger = snd_pmac_capture_trigger,
666 .pointer = snd_pmac_capture_pointer,
667};
668
669int snd_pmac_pcm_new(struct snd_pmac *chip)
670{
671 struct snd_pcm *pcm;
672 int err;
673 int num_captures = 1;
674
675 if (! chip->can_capture)
676 num_captures = 0;
677 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
678 if (err < 0)
679 return err;
680
681 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
682 if (chip->can_capture)
683 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
684
685 pcm->private_data = chip;
686 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
687 strcpy(pcm->name, chip->card->shortname);
688 chip->pcm = pcm;
689
690 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
691 if (chip->can_byte_swap)
692 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
693
694 chip->playback.cur_formats = chip->formats_ok;
695 chip->capture.cur_formats = chip->formats_ok;
696 chip->playback.cur_freqs = chip->freqs_ok;
697 chip->capture.cur_freqs = chip->freqs_ok;
698
699
700 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
701 &chip->pdev->dev,
702 64 * 1024, 64 * 1024);
703
704 return 0;
705}
706
707
708static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
709{
710 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
711 snd_pmac_wait_ack(&chip->playback);
712 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
713 snd_pmac_wait_ack(&chip->capture);
714}
715
716
717
718
719
720void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
721{
722 struct pmac_stream *rec = &chip->playback;
723
724 snd_pmac_dma_stop(rec);
725 chip->extra_dma.cmds->req_count = cpu_to_le16(bytes);
726 chip->extra_dma.cmds->xfer_status = cpu_to_le16(0);
727 chip->extra_dma.cmds->cmd_dep = cpu_to_le32(chip->extra_dma.addr);
728 chip->extra_dma.cmds->phy_addr = cpu_to_le32(addr);
729 chip->extra_dma.cmds->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS);
730 out_le32(&chip->awacs->control,
731 (in_le32(&chip->awacs->control) & ~0x1f00)
732 | (speed << 8));
733 out_le32(&chip->awacs->byteswap, 0);
734 snd_pmac_dma_set_command(rec, &chip->extra_dma);
735 snd_pmac_dma_run(rec, RUN);
736}
737
738void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
739{
740 snd_pmac_dma_stop(&chip->playback);
741 chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
742 snd_pmac_pcm_set_format(chip);
743}
744
745
746
747
748
749static irqreturn_t
750snd_pmac_tx_intr(int irq, void *devid)
751{
752 struct snd_pmac *chip = devid;
753 snd_pmac_pcm_update(chip, &chip->playback);
754 return IRQ_HANDLED;
755}
756
757
758static irqreturn_t
759snd_pmac_rx_intr(int irq, void *devid)
760{
761 struct snd_pmac *chip = devid;
762 snd_pmac_pcm_update(chip, &chip->capture);
763 return IRQ_HANDLED;
764}
765
766
767static irqreturn_t
768snd_pmac_ctrl_intr(int irq, void *devid)
769{
770 struct snd_pmac *chip = devid;
771 int ctrl = in_le32(&chip->awacs->control);
772
773
774 if (ctrl & MASK_PORTCHG) {
775
776 if (chip->update_automute)
777 chip->update_automute(chip, 1);
778 }
779 if (ctrl & MASK_CNTLERR) {
780 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
781 if (err && chip->model <= PMAC_SCREAMER)
782 snd_printk(KERN_DEBUG "error %x\n", err);
783 }
784
785 out_le32(&chip->awacs->control, ctrl);
786 return IRQ_HANDLED;
787}
788
789
790
791
792
793static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
794{
795 if (ppc_md.feature_call)
796 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
797}
798
799
800
801
802
803static int snd_pmac_free(struct snd_pmac *chip)
804{
805
806 if (chip->initialized) {
807 snd_pmac_dbdma_reset(chip);
808
809 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
810 }
811
812 if (chip->node)
813 snd_pmac_sound_feature(chip, 0);
814
815
816 if (chip->mixer_free)
817 chip->mixer_free(chip);
818
819 snd_pmac_detach_beep(chip);
820
821
822 if (chip->irq >= 0)
823 free_irq(chip->irq, (void*)chip);
824 if (chip->tx_irq >= 0)
825 free_irq(chip->tx_irq, (void*)chip);
826 if (chip->rx_irq >= 0)
827 free_irq(chip->rx_irq, (void*)chip);
828 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
829 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
830 snd_pmac_dbdma_free(chip, &chip->extra_dma);
831 snd_pmac_dbdma_free(chip, &emergency_dbdma);
832 iounmap(chip->macio_base);
833 iounmap(chip->latch_base);
834 iounmap(chip->awacs);
835 iounmap(chip->playback.dma);
836 iounmap(chip->capture.dma);
837
838 if (chip->node) {
839 int i;
840 for (i = 0; i < 3; i++) {
841 if (chip->requested & (1 << i))
842 release_mem_region(chip->rsrc[i].start,
843 resource_size(&chip->rsrc[i]));
844 }
845 }
846
847 pci_dev_put(chip->pdev);
848 of_node_put(chip->node);
849 kfree(chip);
850 return 0;
851}
852
853
854
855
856
857static int snd_pmac_dev_free(struct snd_device *device)
858{
859 struct snd_pmac *chip = device->device_data;
860 return snd_pmac_free(chip);
861}
862
863
864
865
866
867
868static void detect_byte_swap(struct snd_pmac *chip)
869{
870 struct device_node *mio;
871
872
873 for (mio = chip->node->parent; mio; mio = mio->parent) {
874 if (of_node_name_eq(mio, "mac-io")) {
875 if (of_device_is_compatible(mio, "Keylargo"))
876 chip->can_byte_swap = 0;
877 break;
878 }
879 }
880
881
882 if (of_machine_is_compatible("PowerBook3,1") ||
883 of_machine_is_compatible("PowerBook2,1"))
884 chip->can_byte_swap = 0 ;
885
886 if (of_machine_is_compatible("PowerBook2,1"))
887 chip->can_duplex = 0;
888}
889
890
891
892
893
894static int snd_pmac_detect(struct snd_pmac *chip)
895{
896 struct device_node *sound;
897 struct device_node *dn;
898 const unsigned int *prop;
899 unsigned int l;
900 struct macio_chip* macio;
901
902 if (!machine_is(powermac))
903 return -ENODEV;
904
905 chip->subframe = 0;
906 chip->revision = 0;
907 chip->freqs_ok = 0xff;
908 chip->model = PMAC_AWACS;
909 chip->can_byte_swap = 1;
910 chip->can_duplex = 1;
911 chip->can_capture = 1;
912 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
913 chip->freq_table = awacs_freqs;
914 chip->pdev = NULL;
915
916 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11;
917
918
919 if (of_machine_is_compatible("AAPL,3400/2400")
920 || of_machine_is_compatible("AAPL,3500"))
921 chip->is_pbook_3400 = 1;
922 else if (of_machine_is_compatible("PowerBook1,1")
923 || of_machine_is_compatible("AAPL,PowerBook1998"))
924 chip->is_pbook_G3 = 1;
925 chip->node = of_find_node_by_name(NULL, "awacs");
926 sound = of_node_get(chip->node);
927
928
929
930
931
932 if (!chip->node)
933 chip->node = of_find_node_by_name(NULL, "davbus");
934
935
936
937
938 if (! chip->node) {
939 chip->node = of_find_node_by_name(NULL, "i2s-a");
940 if (chip->node && chip->node->parent &&
941 chip->node->parent->parent) {
942 if (of_device_is_compatible(chip->node->parent->parent,
943 "K2-Keylargo"))
944 chip->is_k2 = 1;
945 }
946 }
947 if (! chip->node)
948 return -ENODEV;
949
950 if (!sound) {
951 for_each_node_by_name(sound, "sound")
952 if (sound->parent == chip->node)
953 break;
954 }
955 if (! sound) {
956 of_node_put(chip->node);
957 chip->node = NULL;
958 return -ENODEV;
959 }
960 prop = of_get_property(sound, "sub-frame", NULL);
961 if (prop && *prop < 16)
962 chip->subframe = *prop;
963 prop = of_get_property(sound, "layout-id", NULL);
964 if (prop) {
965
966
967 printk(KERN_INFO "snd-powermac no longer handles any "
968 "machines with a layout-id property "
969 "in the device-tree, use snd-aoa.\n");
970 of_node_put(sound);
971 of_node_put(chip->node);
972 chip->node = NULL;
973 return -ENODEV;
974 }
975
976 if (of_device_is_compatible(sound, "screamer")) {
977 chip->model = PMAC_SCREAMER;
978
979 }
980 if (of_device_is_compatible(sound, "burgundy")) {
981 chip->model = PMAC_BURGUNDY;
982 chip->control_mask = MASK_IEPC | 0x11;
983 }
984 if (of_device_is_compatible(sound, "daca")) {
985 chip->model = PMAC_DACA;
986 chip->can_capture = 0;
987 chip->can_duplex = 0;
988
989 chip->control_mask = MASK_IEPC | 0x11;
990 }
991 if (of_device_is_compatible(sound, "tumbler")) {
992 chip->model = PMAC_TUMBLER;
993 chip->can_capture = of_machine_is_compatible("PowerMac4,2")
994 || of_machine_is_compatible("PowerBook3,2")
995 || of_machine_is_compatible("PowerBook3,3")
996 || of_machine_is_compatible("PowerBook4,1")
997 || of_machine_is_compatible("PowerBook4,2")
998 || of_machine_is_compatible("PowerBook4,3");
999 chip->can_duplex = 0;
1000
1001 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1002 chip->freq_table = tumbler_freqs;
1003 chip->control_mask = MASK_IEPC | 0x11;
1004 }
1005 if (of_device_is_compatible(sound, "snapper")) {
1006 chip->model = PMAC_SNAPPER;
1007
1008 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
1009 chip->freq_table = tumbler_freqs;
1010 chip->control_mask = MASK_IEPC | 0x11;
1011 }
1012 prop = of_get_property(sound, "device-id", NULL);
1013 if (prop)
1014 chip->device_id = *prop;
1015 dn = of_find_node_by_name(NULL, "perch");
1016 chip->has_iic = (dn != NULL);
1017 of_node_put(dn);
1018
1019
1020
1021
1022 macio = macio_find(chip->node, macio_unknown);
1023 if (macio == NULL)
1024 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1025 else {
1026 struct pci_dev *pdev = NULL;
1027
1028 for_each_pci_dev(pdev) {
1029 struct device_node *np = pci_device_to_OF_node(pdev);
1030 if (np && np == macio->of_node) {
1031 chip->pdev = pdev;
1032 break;
1033 }
1034 }
1035 }
1036 if (chip->pdev == NULL)
1037 printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
1038 " device !\n");
1039
1040 detect_byte_swap(chip);
1041
1042
1043
1044 prop = of_get_property(sound, "sample-rates", &l);
1045 if (! prop)
1046 prop = of_get_property(sound, "output-frame-rates", &l);
1047 if (prop) {
1048 int i;
1049 chip->freqs_ok = 0;
1050 for (l /= sizeof(int); l > 0; --l) {
1051 unsigned int r = *prop++;
1052
1053 if (r >= 0x10000)
1054 r >>= 16;
1055 for (i = 0; i < chip->num_freqs; ++i) {
1056 if (r == chip->freq_table[i]) {
1057 chip->freqs_ok |= (1 << i);
1058 break;
1059 }
1060 }
1061 }
1062 } else {
1063
1064 chip->freqs_ok = 1;
1065 }
1066
1067 of_node_put(sound);
1068 return 0;
1069}
1070
1071#ifdef PMAC_SUPPORT_AUTOMUTE
1072
1073
1074
1075static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
1076 struct snd_ctl_elem_value *ucontrol)
1077{
1078 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1079 ucontrol->value.integer.value[0] = chip->auto_mute;
1080 return 0;
1081}
1082
1083static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
1084 struct snd_ctl_elem_value *ucontrol)
1085{
1086 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1087 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1088 chip->auto_mute = !!ucontrol->value.integer.value[0];
1089 if (chip->update_automute)
1090 chip->update_automute(chip, 1);
1091 return 1;
1092 }
1093 return 0;
1094}
1095
1096static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
1097 struct snd_ctl_elem_value *ucontrol)
1098{
1099 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
1100 if (chip->detect_headphone)
1101 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1102 else
1103 ucontrol->value.integer.value[0] = 0;
1104 return 0;
1105}
1106
1107static const struct snd_kcontrol_new auto_mute_controls[] = {
1108 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1109 .name = "Auto Mute Switch",
1110 .info = snd_pmac_boolean_mono_info,
1111 .get = pmac_auto_mute_get,
1112 .put = pmac_auto_mute_put,
1113 },
1114 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1115 .name = "Headphone Detection",
1116 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1117 .info = snd_pmac_boolean_mono_info,
1118 .get = pmac_hp_detect_get,
1119 },
1120};
1121
1122int snd_pmac_add_automute(struct snd_pmac *chip)
1123{
1124 int err;
1125 chip->auto_mute = 1;
1126 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
1127 if (err < 0) {
1128 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
1129 return err;
1130 }
1131 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1132 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1133}
1134#endif
1135
1136
1137
1138
1139int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
1140{
1141 struct snd_pmac *chip;
1142 struct device_node *np;
1143 int i, err;
1144 unsigned int irq;
1145 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
1146 static const struct snd_device_ops ops = {
1147 .dev_free = snd_pmac_dev_free,
1148 };
1149
1150 *chip_return = NULL;
1151
1152 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1153 if (chip == NULL)
1154 return -ENOMEM;
1155 chip->card = card;
1156
1157 spin_lock_init(&chip->reg_lock);
1158 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1159
1160 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1161 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1162
1163 err = snd_pmac_detect(chip);
1164 if (err < 0)
1165 goto __error;
1166
1167 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1168 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1169 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1170 snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
1171 err = -ENOMEM;
1172 goto __error;
1173 }
1174
1175 np = chip->node;
1176 chip->requested = 0;
1177 if (chip->is_k2) {
1178 static const char * const rnames[] = {
1179 "Sound Control", "Sound DMA" };
1180 for (i = 0; i < 2; i ++) {
1181 if (of_address_to_resource(np->parent, i,
1182 &chip->rsrc[i])) {
1183 printk(KERN_ERR "snd: can't translate rsrc "
1184 " %d (%s)\n", i, rnames[i]);
1185 err = -ENODEV;
1186 goto __error;
1187 }
1188 if (request_mem_region(chip->rsrc[i].start,
1189 resource_size(&chip->rsrc[i]),
1190 rnames[i]) == NULL) {
1191 printk(KERN_ERR "snd: can't request rsrc "
1192 " %d (%s: %pR)\n",
1193 i, rnames[i], &chip->rsrc[i]);
1194 err = -ENODEV;
1195 goto __error;
1196 }
1197 chip->requested |= (1 << i);
1198 }
1199 ctrl_addr = chip->rsrc[0].start;
1200 txdma_addr = chip->rsrc[1].start;
1201 rxdma_addr = txdma_addr + 0x100;
1202 } else {
1203 static const char * const rnames[] = {
1204 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
1205 for (i = 0; i < 3; i ++) {
1206 if (of_address_to_resource(np, i,
1207 &chip->rsrc[i])) {
1208 printk(KERN_ERR "snd: can't translate rsrc "
1209 " %d (%s)\n", i, rnames[i]);
1210 err = -ENODEV;
1211 goto __error;
1212 }
1213 if (request_mem_region(chip->rsrc[i].start,
1214 resource_size(&chip->rsrc[i]),
1215 rnames[i]) == NULL) {
1216 printk(KERN_ERR "snd: can't request rsrc "
1217 " %d (%s: %pR)\n",
1218 i, rnames[i], &chip->rsrc[i]);
1219 err = -ENODEV;
1220 goto __error;
1221 }
1222 chip->requested |= (1 << i);
1223 }
1224 ctrl_addr = chip->rsrc[0].start;
1225 txdma_addr = chip->rsrc[1].start;
1226 rxdma_addr = chip->rsrc[2].start;
1227 }
1228
1229 chip->awacs = ioremap(ctrl_addr, 0x1000);
1230 chip->playback.dma = ioremap(txdma_addr, 0x100);
1231 chip->capture.dma = ioremap(rxdma_addr, 0x100);
1232 if (chip->model <= PMAC_BURGUNDY) {
1233 irq = irq_of_parse_and_map(np, 0);
1234 if (request_irq(irq, snd_pmac_ctrl_intr, 0,
1235 "PMac", (void*)chip)) {
1236 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
1237 irq);
1238 err = -EBUSY;
1239 goto __error;
1240 }
1241 chip->irq = irq;
1242 }
1243 irq = irq_of_parse_and_map(np, 1);
1244 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
1245 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1246 err = -EBUSY;
1247 goto __error;
1248 }
1249 chip->tx_irq = irq;
1250 irq = irq_of_parse_and_map(np, 2);
1251 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
1252 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
1253 err = -EBUSY;
1254 goto __error;
1255 }
1256 chip->rx_irq = irq;
1257
1258 snd_pmac_sound_feature(chip, 1);
1259
1260
1261 if (chip->model <= PMAC_BURGUNDY)
1262 out_le32(&chip->awacs->control, chip->control_mask);
1263
1264
1265
1266
1267 if (chip->is_pbook_3400) {
1268
1269
1270
1271
1272
1273
1274
1275 chip->latch_base = ioremap (0xf301a000, 0x1000);
1276 in_8(chip->latch_base + 0x190);
1277 } else if (chip->is_pbook_G3) {
1278 struct device_node* mio;
1279 for (mio = chip->node->parent; mio; mio = mio->parent) {
1280 if (of_node_name_eq(mio, "mac-io")) {
1281 struct resource r;
1282 if (of_address_to_resource(mio, 0, &r) == 0)
1283 chip->macio_base =
1284 ioremap(r.start, 0x40);
1285 break;
1286 }
1287 }
1288
1289
1290
1291
1292
1293
1294
1295
1296 if (chip->macio_base)
1297 out_8(chip->macio_base + 0x37, 3);
1298 }
1299
1300
1301 snd_pmac_dbdma_reset(chip);
1302
1303 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1304 if (err < 0)
1305 goto __error;
1306
1307 *chip_return = chip;
1308 return 0;
1309
1310 __error:
1311 snd_pmac_free(chip);
1312 return err;
1313}
1314
1315
1316
1317
1318
1319
1320#ifdef CONFIG_PM
1321
1322
1323
1324
1325
1326void snd_pmac_suspend(struct snd_pmac *chip)
1327{
1328 unsigned long flags;
1329
1330 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
1331 if (chip->suspend)
1332 chip->suspend(chip);
1333 spin_lock_irqsave(&chip->reg_lock, flags);
1334 snd_pmac_beep_stop(chip);
1335 spin_unlock_irqrestore(&chip->reg_lock, flags);
1336 if (chip->irq >= 0)
1337 disable_irq(chip->irq);
1338 if (chip->tx_irq >= 0)
1339 disable_irq(chip->tx_irq);
1340 if (chip->rx_irq >= 0)
1341 disable_irq(chip->rx_irq);
1342 snd_pmac_sound_feature(chip, 0);
1343}
1344
1345void snd_pmac_resume(struct snd_pmac *chip)
1346{
1347 snd_pmac_sound_feature(chip, 1);
1348 if (chip->resume)
1349 chip->resume(chip);
1350
1351 if (chip->macio_base && chip->is_pbook_G3)
1352 out_8(chip->macio_base + 0x37, 3);
1353 else if (chip->is_pbook_3400)
1354 in_8(chip->latch_base + 0x190);
1355
1356 snd_pmac_pcm_set_format(chip);
1357
1358 if (chip->irq >= 0)
1359 enable_irq(chip->irq);
1360 if (chip->tx_irq >= 0)
1361 enable_irq(chip->tx_irq);
1362 if (chip->rx_irq >= 0)
1363 enable_irq(chip->rx_irq);
1364
1365 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
1366}
1367
1368#endif
1369
1370