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7#include <linux/clk.h>
8#include <linux/gpio.h>
9#include <linux/gpio/consumer.h>
10#include <linux/module.h>
11#include <linux/of.h>
12#include <linux/of_gpio.h>
13#include <linux/of_graph.h>
14#include <sound/jack.h>
15#include <sound/pcm_params.h>
16#include <sound/simple_card_utils.h>
17
18void asoc_simple_convert_fixup(struct asoc_simple_data *data,
19 struct snd_pcm_hw_params *params)
20{
21 struct snd_interval *rate = hw_param_interval(params,
22 SNDRV_PCM_HW_PARAM_RATE);
23 struct snd_interval *channels = hw_param_interval(params,
24 SNDRV_PCM_HW_PARAM_CHANNELS);
25
26 if (data->convert_rate)
27 rate->min =
28 rate->max = data->convert_rate;
29
30 if (data->convert_channels)
31 channels->min =
32 channels->max = data->convert_channels;
33}
34EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
35
36void asoc_simple_parse_convert(struct device_node *np,
37 char *prefix,
38 struct asoc_simple_data *data)
39{
40 char prop[128];
41
42 if (!prefix)
43 prefix = "";
44
45
46 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
47 of_property_read_u32(np, prop, &data->convert_rate);
48
49
50 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
51 of_property_read_u32(np, prop, &data->convert_channels);
52}
53EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
54
55int asoc_simple_parse_daifmt(struct device *dev,
56 struct device_node *node,
57 struct device_node *codec,
58 char *prefix,
59 unsigned int *retfmt)
60{
61 struct device_node *bitclkmaster = NULL;
62 struct device_node *framemaster = NULL;
63 unsigned int daifmt;
64
65 daifmt = snd_soc_daifmt_parse_format(node, prefix);
66
67 snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
68 if (!bitclkmaster && !framemaster) {
69
70
71
72
73
74 dev_dbg(dev, "Revert to legacy daifmt parsing\n");
75
76 daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL);
77 } else {
78 daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
79 ((codec == bitclkmaster) << 4) | (codec == framemaster));
80 }
81
82 of_node_put(bitclkmaster);
83 of_node_put(framemaster);
84
85 *retfmt = daifmt;
86
87 return 0;
88}
89EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
90
91int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
92 struct asoc_simple_dai *dai)
93{
94 u32 *array_values, *p;
95 int n, i, ret;
96
97 if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
98 return 0;
99
100 n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
101 if (n % 3) {
102 dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
103 return -EINVAL;
104 }
105
106 dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
107 if (!dai->tdm_width_map)
108 return -ENOMEM;
109
110 array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
111 if (!array_values)
112 return -ENOMEM;
113
114 ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
115 if (ret < 0) {
116 dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
117 goto out;
118 }
119
120 p = array_values;
121 for (i = 0; i < n / 3; ++i) {
122 dai->tdm_width_map[i].sample_bits = *p++;
123 dai->tdm_width_map[i].slot_width = *p++;
124 dai->tdm_width_map[i].slot_count = *p++;
125 }
126
127 dai->n_tdm_widths = i;
128 ret = 0;
129out:
130 kfree(array_values);
131
132 return ret;
133}
134EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map);
135
136int asoc_simple_set_dailink_name(struct device *dev,
137 struct snd_soc_dai_link *dai_link,
138 const char *fmt, ...)
139{
140 va_list ap;
141 char *name = NULL;
142 int ret = -ENOMEM;
143
144 va_start(ap, fmt);
145 name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
146 va_end(ap);
147
148 if (name) {
149 ret = 0;
150
151 dai_link->name = name;
152 dai_link->stream_name = name;
153 }
154
155 return ret;
156}
157EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
158
159int asoc_simple_parse_card_name(struct snd_soc_card *card,
160 char *prefix)
161{
162 int ret;
163
164 if (!prefix)
165 prefix = "";
166
167
168 ret = snd_soc_of_parse_card_name(card, "label");
169 if (ret < 0 || !card->name) {
170 char prop[128];
171
172 snprintf(prop, sizeof(prop), "%sname", prefix);
173 ret = snd_soc_of_parse_card_name(card, prop);
174 if (ret < 0)
175 return ret;
176 }
177
178 if (!card->name && card->dai_link)
179 card->name = card->dai_link->name;
180
181 return 0;
182}
183EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
184
185static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
186{
187 if (dai)
188 return clk_prepare_enable(dai->clk);
189
190 return 0;
191}
192
193static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
194{
195 if (dai)
196 clk_disable_unprepare(dai->clk);
197}
198
199int asoc_simple_parse_clk(struct device *dev,
200 struct device_node *node,
201 struct asoc_simple_dai *simple_dai,
202 struct snd_soc_dai_link_component *dlc)
203{
204 struct clk *clk;
205 u32 val;
206
207
208
209
210
211
212
213 clk = devm_get_clk_from_child(dev, node, NULL);
214 simple_dai->clk_fixed = of_property_read_bool(
215 node, "system-clock-fixed");
216 if (!IS_ERR(clk)) {
217 simple_dai->sysclk = clk_get_rate(clk);
218
219 simple_dai->clk = clk;
220 } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
221 simple_dai->sysclk = val;
222 simple_dai->clk_fixed = true;
223 } else {
224 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
225 if (!IS_ERR(clk))
226 simple_dai->sysclk = clk_get_rate(clk);
227 }
228
229 if (of_property_read_bool(node, "system-clock-direction-out"))
230 simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
231
232 return 0;
233}
234EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
235
236static int asoc_simple_check_fixed_sysclk(struct device *dev,
237 struct asoc_simple_dai *dai,
238 unsigned int *fixed_sysclk)
239{
240 if (dai->clk_fixed) {
241 if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
242 dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
243 *fixed_sysclk, dai->sysclk);
244 return -EINVAL;
245 }
246 *fixed_sysclk = dai->sysclk;
247 }
248
249 return 0;
250}
251
252int asoc_simple_startup(struct snd_pcm_substream *substream)
253{
254 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
255 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
256 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
257 struct asoc_simple_dai *dai;
258 unsigned int fixed_sysclk = 0;
259 int i1, i2, i;
260 int ret;
261
262 for_each_prop_dai_cpu(props, i1, dai) {
263 ret = asoc_simple_clk_enable(dai);
264 if (ret)
265 goto cpu_err;
266 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
267 if (ret)
268 goto cpu_err;
269 }
270
271 for_each_prop_dai_codec(props, i2, dai) {
272 ret = asoc_simple_clk_enable(dai);
273 if (ret)
274 goto codec_err;
275 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
276 if (ret)
277 goto codec_err;
278 }
279
280 if (fixed_sysclk && props->mclk_fs) {
281 unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
282
283 if (fixed_sysclk % props->mclk_fs) {
284 dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
285 fixed_sysclk, props->mclk_fs);
286 return -EINVAL;
287 }
288 ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
289 fixed_rate, fixed_rate);
290 if (ret)
291 goto codec_err;
292 }
293
294 return 0;
295
296codec_err:
297 for_each_prop_dai_codec(props, i, dai) {
298 if (i >= i2)
299 break;
300 asoc_simple_clk_disable(dai);
301 }
302cpu_err:
303 for_each_prop_dai_cpu(props, i, dai) {
304 if (i >= i1)
305 break;
306 asoc_simple_clk_disable(dai);
307 }
308 return ret;
309}
310EXPORT_SYMBOL_GPL(asoc_simple_startup);
311
312void asoc_simple_shutdown(struct snd_pcm_substream *substream)
313{
314 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
315 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
316 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
317 struct asoc_simple_dai *dai;
318 int i;
319
320 for_each_prop_dai_cpu(props, i, dai) {
321 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i);
322
323 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
324 snd_soc_dai_set_sysclk(cpu_dai,
325 0, 0, SND_SOC_CLOCK_OUT);
326
327 asoc_simple_clk_disable(dai);
328 }
329 for_each_prop_dai_codec(props, i, dai) {
330 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i);
331
332 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
333 snd_soc_dai_set_sysclk(codec_dai,
334 0, 0, SND_SOC_CLOCK_IN);
335
336 asoc_simple_clk_disable(dai);
337 }
338}
339EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
340
341static int asoc_simple_set_clk_rate(struct device *dev,
342 struct asoc_simple_dai *simple_dai,
343 unsigned long rate)
344{
345 if (!simple_dai)
346 return 0;
347
348 if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
349 dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
350 return -EINVAL;
351 }
352
353 if (!simple_dai->clk)
354 return 0;
355
356 if (clk_get_rate(simple_dai->clk) == rate)
357 return 0;
358
359 return clk_set_rate(simple_dai->clk, rate);
360}
361
362static int asoc_simple_set_tdm(struct snd_soc_dai *dai,
363 struct asoc_simple_dai *simple_dai,
364 struct snd_pcm_hw_params *params)
365{
366 int sample_bits = params_width(params);
367 int slot_width, slot_count;
368 int i, ret;
369
370 if (!simple_dai || !simple_dai->tdm_width_map)
371 return 0;
372
373 slot_width = simple_dai->slot_width;
374 slot_count = simple_dai->slots;
375
376 if (slot_width == 0)
377 slot_width = sample_bits;
378
379 for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
380 if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
381 slot_width = simple_dai->tdm_width_map[i].slot_width;
382 slot_count = simple_dai->tdm_width_map[i].slot_count;
383 break;
384 }
385 }
386
387 ret = snd_soc_dai_set_tdm_slot(dai,
388 simple_dai->tx_slot_mask,
389 simple_dai->rx_slot_mask,
390 slot_count,
391 slot_width);
392 if (ret && ret != -ENOTSUPP) {
393 dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
394 return ret;
395 }
396
397 return 0;
398}
399
400int asoc_simple_hw_params(struct snd_pcm_substream *substream,
401 struct snd_pcm_hw_params *params)
402{
403 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
404 struct asoc_simple_dai *pdai;
405 struct snd_soc_dai *sdai;
406 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
407 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
408 unsigned int mclk, mclk_fs = 0;
409 int i, ret;
410
411 if (props->mclk_fs)
412 mclk_fs = props->mclk_fs;
413
414 if (mclk_fs) {
415 struct snd_soc_component *component;
416 mclk = params_rate(params) * mclk_fs;
417
418 for_each_prop_dai_codec(props, i, pdai) {
419 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
420 if (ret < 0)
421 return ret;
422 }
423
424 for_each_prop_dai_cpu(props, i, pdai) {
425 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
426 if (ret < 0)
427 return ret;
428 }
429
430
431
432
433
434 for_each_rtd_components(rtd, i, component) {
435 ret = snd_soc_component_set_sysclk(component, 0, 0,
436 mclk, SND_SOC_CLOCK_IN);
437 if (ret && ret != -ENOTSUPP)
438 return ret;
439 }
440
441 for_each_rtd_codec_dais(rtd, i, sdai) {
442 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
443 if (ret && ret != -ENOTSUPP)
444 return ret;
445 }
446
447 for_each_rtd_cpu_dais(rtd, i, sdai) {
448 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
449 if (ret && ret != -ENOTSUPP)
450 return ret;
451 }
452 }
453
454 for_each_prop_dai_codec(props, i, pdai) {
455 sdai = asoc_rtd_to_codec(rtd, i);
456 ret = asoc_simple_set_tdm(sdai, pdai, params);
457 if (ret < 0)
458 return ret;
459 }
460
461 for_each_prop_dai_cpu(props, i, pdai) {
462 sdai = asoc_rtd_to_cpu(rtd, i);
463 ret = asoc_simple_set_tdm(sdai, pdai, params);
464 if (ret < 0)
465 return ret;
466 }
467
468 return 0;
469}
470EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
471
472int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
473 struct snd_pcm_hw_params *params)
474{
475 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
476 struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
477
478 asoc_simple_convert_fixup(&dai_props->adata, params);
479
480 return 0;
481}
482EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
483
484static int asoc_simple_init_dai(struct snd_soc_dai *dai,
485 struct asoc_simple_dai *simple_dai)
486{
487 int ret;
488
489 if (!simple_dai)
490 return 0;
491
492 if (simple_dai->sysclk) {
493 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
494 simple_dai->clk_direction);
495 if (ret && ret != -ENOTSUPP) {
496 dev_err(dai->dev, "simple-card: set_sysclk error\n");
497 return ret;
498 }
499 }
500
501 if (simple_dai->slots) {
502 ret = snd_soc_dai_set_tdm_slot(dai,
503 simple_dai->tx_slot_mask,
504 simple_dai->rx_slot_mask,
505 simple_dai->slots,
506 simple_dai->slot_width);
507 if (ret && ret != -ENOTSUPP) {
508 dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
509 return ret;
510 }
511 }
512
513 return 0;
514}
515
516static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
517 struct simple_dai_props *dai_props)
518{
519 struct snd_soc_dai_link *dai_link = rtd->dai_link;
520 struct snd_soc_component *component;
521 struct snd_soc_pcm_stream *params;
522 struct snd_pcm_hardware hw;
523 int i, ret, stream;
524
525
526 for_each_rtd_components(rtd, i, component) {
527 if (!snd_soc_component_is_codec(component))
528 return 0;
529 }
530
531
532 for_each_pcm_streams(stream) {
533 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
534 if (ret == 0)
535 break;
536 }
537
538 if (ret < 0) {
539 dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
540 return ret;
541 }
542
543 params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL);
544 if (!params)
545 return -ENOMEM;
546
547 params->formats = hw.formats;
548 params->rates = hw.rates;
549 params->rate_min = hw.rate_min;
550 params->rate_max = hw.rate_max;
551 params->channels_min = hw.channels_min;
552 params->channels_max = hw.channels_max;
553
554 dai_link->params = params;
555 dai_link->num_params = 1;
556
557 return 0;
558}
559
560int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
561{
562 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
563 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
564 struct asoc_simple_dai *dai;
565 int i, ret;
566
567 for_each_prop_dai_codec(props, i, dai) {
568 ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
569 if (ret < 0)
570 return ret;
571 }
572 for_each_prop_dai_cpu(props, i, dai) {
573 ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
574 if (ret < 0)
575 return ret;
576 }
577
578 ret = asoc_simple_init_dai_link_params(rtd, props);
579 if (ret < 0)
580 return ret;
581
582 return 0;
583}
584EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
585
586void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
587 struct snd_soc_dai_link_component *cpus)
588{
589
590 if (!platforms->of_node)
591 platforms->of_node = cpus->of_node;
592}
593EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
594
595void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
596 int is_single_links)
597{
598
599
600
601
602
603
604
605
606
607 if (is_single_links)
608 cpus->dai_name = NULL;
609}
610EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
611
612int asoc_simple_clean_reference(struct snd_soc_card *card)
613{
614 struct snd_soc_dai_link *dai_link;
615 struct snd_soc_dai_link_component *cpu;
616 struct snd_soc_dai_link_component *codec;
617 int i, j;
618
619 for_each_card_prelinks(card, i, dai_link) {
620 for_each_link_cpus(dai_link, j, cpu)
621 of_node_put(cpu->of_node);
622 for_each_link_codecs(dai_link, j, codec)
623 of_node_put(codec->of_node);
624 }
625 return 0;
626}
627EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
628
629int asoc_simple_parse_routing(struct snd_soc_card *card,
630 char *prefix)
631{
632 struct device_node *node = card->dev->of_node;
633 char prop[128];
634
635 if (!prefix)
636 prefix = "";
637
638 snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
639
640 if (!of_property_read_bool(node, prop))
641 return 0;
642
643 return snd_soc_of_parse_audio_routing(card, prop);
644}
645EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
646
647int asoc_simple_parse_widgets(struct snd_soc_card *card,
648 char *prefix)
649{
650 struct device_node *node = card->dev->of_node;
651 char prop[128];
652
653 if (!prefix)
654 prefix = "";
655
656 snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
657
658 if (of_property_read_bool(node, prop))
659 return snd_soc_of_parse_audio_simple_widgets(card, prop);
660
661
662 return 0;
663}
664EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
665
666int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
667 char *prefix)
668{
669 char prop[128];
670
671 if (!prefix)
672 prefix = "";
673
674 snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
675
676 return snd_soc_of_parse_pin_switches(card, prop);
677}
678EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
679
680int asoc_simple_init_jack(struct snd_soc_card *card,
681 struct asoc_simple_jack *sjack,
682 int is_hp, char *prefix,
683 char *pin)
684{
685 struct device *dev = card->dev;
686 enum of_gpio_flags flags;
687 char prop[128];
688 char *pin_name;
689 char *gpio_name;
690 int mask;
691 int det;
692
693 if (!prefix)
694 prefix = "";
695
696 sjack->gpio.gpio = -ENOENT;
697
698 if (is_hp) {
699 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
700 pin_name = pin ? pin : "Headphones";
701 gpio_name = "Headphone detection";
702 mask = SND_JACK_HEADPHONE;
703 } else {
704 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
705 pin_name = pin ? pin : "Mic Jack";
706 gpio_name = "Mic detection";
707 mask = SND_JACK_MICROPHONE;
708 }
709
710 det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
711 if (det == -EPROBE_DEFER)
712 return -EPROBE_DEFER;
713
714 if (gpio_is_valid(det)) {
715 sjack->pin.pin = pin_name;
716 sjack->pin.mask = mask;
717
718 sjack->gpio.name = gpio_name;
719 sjack->gpio.report = mask;
720 sjack->gpio.gpio = det;
721 sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW);
722 sjack->gpio.debounce_time = 150;
723
724 snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack,
725 &sjack->pin, 1);
726
727 snd_soc_jack_add_gpios(&sjack->jack, 1,
728 &sjack->gpio);
729 }
730
731 return 0;
732}
733EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
734
735int asoc_simple_init_priv(struct asoc_simple_priv *priv,
736 struct link_info *li)
737{
738 struct snd_soc_card *card = simple_priv_to_card(priv);
739 struct device *dev = simple_priv_to_dev(priv);
740 struct snd_soc_dai_link *dai_link;
741 struct simple_dai_props *dai_props;
742 struct asoc_simple_dai *dais;
743 struct snd_soc_dai_link_component *dlcs;
744 struct snd_soc_codec_conf *cconf = NULL;
745 struct snd_soc_pcm_stream *c2c_conf = NULL;
746 int i, dai_num = 0, dlc_num = 0, cnf_num = 0, c2c_num = 0;
747
748 dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
749 dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL);
750 if (!dai_props || !dai_link)
751 return -ENOMEM;
752
753
754
755
756
757 for (i = 0; i < li->link; i++) {
758 int cc = li->num[i].cpus + li->num[i].codecs;
759
760 dai_num += cc;
761 dlc_num += cc + li->num[i].platforms;
762
763 if (!li->num[i].cpus)
764 cnf_num += li->num[i].codecs;
765
766 c2c_num += li->num[i].c2c;
767 }
768
769 dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
770 dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
771 if (!dais || !dlcs)
772 return -ENOMEM;
773
774 if (cnf_num) {
775 cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
776 if (!cconf)
777 return -ENOMEM;
778 }
779
780 if (c2c_num) {
781 c2c_conf = devm_kcalloc(dev, c2c_num, sizeof(*c2c_conf), GFP_KERNEL);
782 if (!c2c_conf)
783 return -ENOMEM;
784 }
785
786 dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
787 li->link, dai_num, cnf_num);
788
789
790 priv->dummy.of_node = NULL;
791 priv->dummy.dai_name = "snd-soc-dummy-dai";
792 priv->dummy.name = "snd-soc-dummy";
793
794 priv->dai_props = dai_props;
795 priv->dai_link = dai_link;
796 priv->dais = dais;
797 priv->dlcs = dlcs;
798 priv->codec_conf = cconf;
799 priv->c2c_conf = c2c_conf;
800
801 card->dai_link = priv->dai_link;
802 card->num_links = li->link;
803 card->codec_conf = cconf;
804 card->num_configs = cnf_num;
805
806 for (i = 0; i < li->link; i++) {
807 if (li->num[i].cpus) {
808
809 dai_props[i].cpus =
810 dai_link[i].cpus = dlcs;
811 dai_props[i].num.cpus =
812 dai_link[i].num_cpus = li->num[i].cpus;
813 dai_props[i].cpu_dai = dais;
814
815 dlcs += li->num[i].cpus;
816 dais += li->num[i].cpus;
817
818 if (li->num[i].c2c) {
819
820 dai_props[i].c2c_conf = c2c_conf;
821 c2c_conf += li->num[i].c2c;
822 }
823 } else {
824
825 dai_props[i].cpus =
826 dai_link[i].cpus = &priv->dummy;
827 dai_props[i].num.cpus =
828 dai_link[i].num_cpus = 1;
829 }
830
831 if (li->num[i].codecs) {
832
833 dai_props[i].codecs =
834 dai_link[i].codecs = dlcs;
835 dai_props[i].num.codecs =
836 dai_link[i].num_codecs = li->num[i].codecs;
837 dai_props[i].codec_dai = dais;
838
839 dlcs += li->num[i].codecs;
840 dais += li->num[i].codecs;
841
842 if (!li->num[i].cpus) {
843
844 dai_props[i].codec_conf = cconf;
845 cconf += li->num[i].codecs;
846 }
847 } else {
848
849 dai_props[i].codecs =
850 dai_link[i].codecs = &priv->dummy;
851 dai_props[i].num.codecs =
852 dai_link[i].num_codecs = 1;
853 }
854
855 if (li->num[i].platforms) {
856
857 dai_props[i].platforms =
858 dai_link[i].platforms = dlcs;
859 dai_props[i].num.platforms =
860 dai_link[i].num_platforms = li->num[i].platforms;
861
862 dlcs += li->num[i].platforms;
863 } else {
864
865 dai_props[i].platforms =
866 dai_link[i].platforms = NULL;
867 dai_props[i].num.platforms =
868 dai_link[i].num_platforms = 0;
869 }
870 }
871
872 return 0;
873}
874EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
875
876int asoc_simple_remove(struct platform_device *pdev)
877{
878 struct snd_soc_card *card = platform_get_drvdata(pdev);
879
880 return asoc_simple_clean_reference(card);
881}
882EXPORT_SYMBOL_GPL(asoc_simple_remove);
883
884int asoc_graph_card_probe(struct snd_soc_card *card)
885{
886 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
887 int ret;
888
889 ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
890 if (ret < 0)
891 return ret;
892
893 ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
894 if (ret < 0)
895 return ret;
896
897 return 0;
898}
899EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
900
901int asoc_graph_is_ports0(struct device_node *np)
902{
903 struct device_node *port, *ports, *ports0, *top;
904 int ret;
905
906
907 if (of_node_name_eq(np, "endpoint")) {
908 port = of_get_parent(np);
909 } else {
910 port = np;
911 of_node_get(port);
912 }
913
914 ports = of_get_parent(port);
915 top = of_get_parent(ports);
916 ports0 = of_get_child_by_name(top, "ports");
917
918 ret = ports0 == ports;
919
920 of_node_put(port);
921 of_node_put(ports);
922 of_node_put(ports0);
923 of_node_put(top);
924
925 return ret;
926}
927EXPORT_SYMBOL_GPL(asoc_graph_is_ports0);
928
929
930MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
931MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
932MODULE_LICENSE("GPL v2");
933
