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1// SPDX-License-Identifier: GPL-2.0+
2//
3// soc-topology.c -- ALSA SoC Topology
4//
5// Copyright (C) 2012 Texas Instruments Inc.
6// Copyright (C) 2015 Intel Corporation.
7//
8// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9// K, Mythri P <mythri.p.k@intel.com>
10// Prusty, Subhransu S <subhransu.s.prusty@intel.com>
11// B, Jayachandran <jayachandran.b@intel.com>
12// Abdullah, Omair M <omair.m.abdullah@intel.com>
13// Jin, Yao <yao.jin@intel.com>
14// Lin, Mengdong <mengdong.lin@intel.com>
15//
16// Add support to read audio firmware topology alongside firmware text. The
17// topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
18// equalizers, firmware, coefficients etc.
19//
20// This file only manages the core ALSA and ASoC components, all other bespoke
21// firmware topology data is passed to component drivers for bespoke handling.
22
23#include <linux/kernel.h>
24#include <linux/export.h>
25#include <linux/list.h>
26#include <linux/firmware.h>
27#include <linux/slab.h>
28#include <sound/soc.h>
29#include <sound/soc-dapm.h>
30#include <sound/soc-topology.h>
31#include <sound/tlv.h>
32
33#define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */
34
35/*
36 * We make several passes over the data (since it wont necessarily be ordered)
37 * and process objects in the following order. This guarantees the component
38 * drivers will be ready with any vendor data before the mixers and DAPM objects
39 * are loaded (that may make use of the vendor data).
40 */
41#define SOC_TPLG_PASS_MANIFEST 0
42#define SOC_TPLG_PASS_VENDOR 1
43#define SOC_TPLG_PASS_MIXER 2
44#define SOC_TPLG_PASS_WIDGET 3
45#define SOC_TPLG_PASS_PCM_DAI 4
46#define SOC_TPLG_PASS_GRAPH 5
47#define SOC_TPLG_PASS_PINS 6
48#define SOC_TPLG_PASS_BE_DAI 7
49#define SOC_TPLG_PASS_LINK 8
50
51#define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST
52#define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK
53
54/* topology context */
55struct soc_tplg {
56 const struct firmware *fw;
57
58 /* runtime FW parsing */
59 const u8 *pos; /* read postion */
60 const u8 *hdr_pos; /* header position */
61 unsigned int pass; /* pass number */
62
63 /* component caller */
64 struct device *dev;
65 struct snd_soc_component *comp;
66 u32 index; /* current block index */
67 u32 req_index; /* required index, only loaded/free matching blocks */
68
69 /* vendor specific kcontrol operations */
70 const struct snd_soc_tplg_kcontrol_ops *io_ops;
71 int io_ops_count;
72
73 /* vendor specific bytes ext handlers, for TLV bytes controls */
74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
75 int bytes_ext_ops_count;
76
77 /* optional fw loading callbacks to component drivers */
78 struct snd_soc_tplg_ops *ops;
79};
80
81static int soc_tplg_process_headers(struct soc_tplg *tplg);
82static void soc_tplg_complete(struct soc_tplg *tplg);
83static void soc_tplg_denum_remove_texts(struct soc_enum *se);
84static void soc_tplg_denum_remove_values(struct soc_enum *se);
85
86/* check we dont overflow the data for this control chunk */
87static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
88 unsigned int count, size_t bytes, const char *elem_type)
89{
90 const u8 *end = tplg->pos + elem_size * count;
91
92 if (end > tplg->fw->data + tplg->fw->size) {
93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
94 elem_type);
95 return -EINVAL;
96 }
97
98 /* check there is enough room in chunk for control.
99 extra bytes at the end of control are for vendor data here */
100 if (elem_size * count > bytes) {
101 dev_err(tplg->dev,
102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
103 elem_type, count, elem_size, bytes);
104 return -EINVAL;
105 }
106
107 return 0;
108}
109
110static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
111{
112 const u8 *end = tplg->hdr_pos;
113
114 if (end >= tplg->fw->data + tplg->fw->size)
115 return 1;
116 return 0;
117}
118
119static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
120{
121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
122}
123
124static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
125{
126 return (unsigned long)(tplg->pos - tplg->fw->data);
127}
128
129/* mapping of Kcontrol types and associated operations. */
130static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
132 snd_soc_put_volsw, snd_soc_info_volsw},
133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
134 snd_soc_put_volsw_sx, NULL},
135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
136 snd_soc_put_enum_double, snd_soc_info_enum_double},
137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
138 snd_soc_put_enum_double, NULL},
139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
140 snd_soc_bytes_put, snd_soc_bytes_info},
141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
142 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
144 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
146 snd_soc_put_strobe, NULL},
147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
148 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
152 snd_soc_dapm_put_enum_double, NULL},
153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
154 snd_soc_dapm_put_enum_double, NULL},
155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
157};
158
159struct soc_tplg_map {
160 int uid;
161 int kid;
162};
163
164/* mapping of widget types from UAPI IDs to kernel IDs */
165static const struct soc_tplg_map dapm_map[] = {
166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
190};
191
192static int tplc_chan_get_reg(struct soc_tplg *tplg,
193 struct snd_soc_tplg_channel *chan, int map)
194{
195 int i;
196
197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
198 if (le32_to_cpu(chan[i].id) == map)
199 return le32_to_cpu(chan[i].reg);
200 }
201
202 return -EINVAL;
203}
204
205static int tplc_chan_get_shift(struct soc_tplg *tplg,
206 struct snd_soc_tplg_channel *chan, int map)
207{
208 int i;
209
210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
211 if (le32_to_cpu(chan[i].id) == map)
212 return le32_to_cpu(chan[i].shift);
213 }
214
215 return -EINVAL;
216}
217
218static int get_widget_id(int tplg_type)
219{
220 int i;
221
222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
223 if (tplg_type == dapm_map[i].uid)
224 return dapm_map[i].kid;
225 }
226
227 return -EINVAL;
228}
229
230static inline void soc_bind_err(struct soc_tplg *tplg,
231 struct snd_soc_tplg_ctl_hdr *hdr, int index)
232{
233 dev_err(tplg->dev,
234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
236 soc_tplg_get_offset(tplg));
237}
238
239static inline void soc_control_err(struct soc_tplg *tplg,
240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
241{
242 dev_err(tplg->dev,
243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
245 soc_tplg_get_offset(tplg));
246}
247
248/* pass vendor data to component driver for processing */
249static int soc_tplg_vendor_load(struct soc_tplg *tplg,
250 struct snd_soc_tplg_hdr *hdr)
251{
252 int ret = 0;
253
254 if (tplg->ops && tplg->ops->vendor_load)
255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
256 else {
257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
258 hdr->vendor_type);
259 return -EINVAL;
260 }
261
262 if (ret < 0)
263 dev_err(tplg->dev,
264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
265 soc_tplg_get_hdr_offset(tplg),
266 soc_tplg_get_hdr_offset(tplg),
267 hdr->type, hdr->vendor_type);
268 return ret;
269}
270
271/* optionally pass new dynamic widget to component driver. This is mainly for
272 * external widgets where we can assign private data/ops */
273static int soc_tplg_widget_load(struct soc_tplg *tplg,
274 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
275{
276 if (tplg->ops && tplg->ops->widget_load)
277 return tplg->ops->widget_load(tplg->comp, tplg->index, w,
278 tplg_w);
279
280 return 0;
281}
282
283/* optionally pass new dynamic widget to component driver. This is mainly for
284 * external widgets where we can assign private data/ops */
285static int soc_tplg_widget_ready(struct soc_tplg *tplg,
286 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
287{
288 if (tplg->ops && tplg->ops->widget_ready)
289 return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
290 tplg_w);
291
292 return 0;
293}
294
295/* pass DAI configurations to component driver for extra initialization */
296static int soc_tplg_dai_load(struct soc_tplg *tplg,
297 struct snd_soc_dai_driver *dai_drv,
298 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
299{
300 if (tplg->ops && tplg->ops->dai_load)
301 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
302 pcm, dai);
303
304 return 0;
305}
306
307/* pass link configurations to component driver for extra initialization */
308static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
309 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
310{
311 if (tplg->ops && tplg->ops->link_load)
312 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
313
314 return 0;
315}
316
317/* tell the component driver that all firmware has been loaded in this request */
318static void soc_tplg_complete(struct soc_tplg *tplg)
319{
320 if (tplg->ops && tplg->ops->complete)
321 tplg->ops->complete(tplg->comp);
322}
323
324/* add a dynamic kcontrol */
325static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
326 const struct snd_kcontrol_new *control_new, const char *prefix,
327 void *data, struct snd_kcontrol **kcontrol)
328{
329 int err;
330
331 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
332 if (*kcontrol == NULL) {
333 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
334 control_new->name);
335 return -ENOMEM;
336 }
337
338 err = snd_ctl_add(card, *kcontrol);
339 if (err < 0) {
340 dev_err(dev, "ASoC: Failed to add %s: %d\n",
341 control_new->name, err);
342 return err;
343 }
344
345 return 0;
346}
347
348/* add a dynamic kcontrol for component driver */
349static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
350 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
351{
352 struct snd_soc_component *comp = tplg->comp;
353
354 return soc_tplg_add_dcontrol(comp->card->snd_card,
355 comp->dev, k, comp->name_prefix, comp, kcontrol);
356}
357
358/* remove a mixer kcontrol */
359static void remove_mixer(struct snd_soc_component *comp,
360 struct snd_soc_dobj *dobj, int pass)
361{
362 struct snd_card *card = comp->card->snd_card;
363 struct soc_mixer_control *sm =
364 container_of(dobj, struct soc_mixer_control, dobj);
365 const unsigned int *p = NULL;
366
367 if (pass != SOC_TPLG_PASS_MIXER)
368 return;
369
370 if (dobj->ops && dobj->ops->control_unload)
371 dobj->ops->control_unload(comp, dobj);
372
373 if (dobj->control.kcontrol->tlv.p)
374 p = dobj->control.kcontrol->tlv.p;
375 snd_ctl_remove(card, dobj->control.kcontrol);
376 list_del(&dobj->list);
377 kfree(sm);
378 kfree(p);
379}
380
381/* remove an enum kcontrol */
382static void remove_enum(struct snd_soc_component *comp,
383 struct snd_soc_dobj *dobj, int pass)
384{
385 struct snd_card *card = comp->card->snd_card;
386 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
387
388 if (pass != SOC_TPLG_PASS_MIXER)
389 return;
390
391 if (dobj->ops && dobj->ops->control_unload)
392 dobj->ops->control_unload(comp, dobj);
393
394 snd_ctl_remove(card, dobj->control.kcontrol);
395 list_del(&dobj->list);
396
397 soc_tplg_denum_remove_values(se);
398 soc_tplg_denum_remove_texts(se);
399 kfree(se);
400}
401
402/* remove a byte kcontrol */
403static void remove_bytes(struct snd_soc_component *comp,
404 struct snd_soc_dobj *dobj, int pass)
405{
406 struct snd_card *card = comp->card->snd_card;
407 struct soc_bytes_ext *sb =
408 container_of(dobj, struct soc_bytes_ext, dobj);
409
410 if (pass != SOC_TPLG_PASS_MIXER)
411 return;
412
413 if (dobj->ops && dobj->ops->control_unload)
414 dobj->ops->control_unload(comp, dobj);
415
416 snd_ctl_remove(card, dobj->control.kcontrol);
417 list_del(&dobj->list);
418 kfree(sb);
419}
420
421/* remove a route */
422static void remove_route(struct snd_soc_component *comp,
423 struct snd_soc_dobj *dobj, int pass)
424{
425 struct snd_soc_dapm_route *route =
426 container_of(dobj, struct snd_soc_dapm_route, dobj);
427
428 if (pass != SOC_TPLG_PASS_GRAPH)
429 return;
430
431 if (dobj->ops && dobj->ops->dapm_route_unload)
432 dobj->ops->dapm_route_unload(comp, dobj);
433
434 list_del(&dobj->list);
435 kfree(route);
436}
437
438/* remove a widget and it's kcontrols - routes must be removed first */
439static void remove_widget(struct snd_soc_component *comp,
440 struct snd_soc_dobj *dobj, int pass)
441{
442 struct snd_card *card = comp->card->snd_card;
443 struct snd_soc_dapm_widget *w =
444 container_of(dobj, struct snd_soc_dapm_widget, dobj);
445 int i;
446
447 if (pass != SOC_TPLG_PASS_WIDGET)
448 return;
449
450 if (dobj->ops && dobj->ops->widget_unload)
451 dobj->ops->widget_unload(comp, dobj);
452
453 if (!w->kcontrols)
454 goto free_news;
455
456 /*
457 * Dynamic Widgets either have 1..N enum kcontrols or mixers.
458 * The enum may either have an array of values or strings.
459 */
460 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
461 /* enumerated widget mixer */
462 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
463 struct snd_kcontrol *kcontrol = w->kcontrols[i];
464 struct soc_enum *se =
465 (struct soc_enum *)kcontrol->private_value;
466
467 snd_ctl_remove(card, kcontrol);
468
469 /* free enum kcontrol's dvalues and dtexts */
470 soc_tplg_denum_remove_values(se);
471 soc_tplg_denum_remove_texts(se);
472
473 kfree(se);
474 kfree(w->kcontrol_news[i].name);
475 }
476 } else {
477 /* volume mixer or bytes controls */
478 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
479 struct snd_kcontrol *kcontrol = w->kcontrols[i];
480
481 if (dobj->widget.kcontrol_type
482 == SND_SOC_TPLG_TYPE_MIXER)
483 kfree(kcontrol->tlv.p);
484
485 /* Private value is used as struct soc_mixer_control
486 * for volume mixers or soc_bytes_ext for bytes
487 * controls.
488 */
489 kfree((void *)kcontrol->private_value);
490 snd_ctl_remove(card, kcontrol);
491 kfree(w->kcontrol_news[i].name);
492 }
493 }
494
495free_news:
496 kfree(w->kcontrol_news);
497
498 list_del(&dobj->list);
499
500 /* widget w is freed by soc-dapm.c */
501}
502
503/* remove DAI configurations */
504static void remove_dai(struct snd_soc_component *comp,
505 struct snd_soc_dobj *dobj, int pass)
506{
507 struct snd_soc_dai_driver *dai_drv =
508 container_of(dobj, struct snd_soc_dai_driver, dobj);
509 struct snd_soc_dai *dai;
510
511 if (pass != SOC_TPLG_PASS_PCM_DAI)
512 return;
513
514 if (dobj->ops && dobj->ops->dai_unload)
515 dobj->ops->dai_unload(comp, dobj);
516
517 for_each_component_dais(comp, dai)
518 if (dai->driver == dai_drv)
519 dai->driver = NULL;
520
521 kfree(dai_drv->playback.stream_name);
522 kfree(dai_drv->capture.stream_name);
523 kfree(dai_drv->name);
524 list_del(&dobj->list);
525 kfree(dai_drv);
526}
527
528/* remove link configurations */
529static void remove_link(struct snd_soc_component *comp,
530 struct snd_soc_dobj *dobj, int pass)
531{
532 struct snd_soc_dai_link *link =
533 container_of(dobj, struct snd_soc_dai_link, dobj);
534
535 if (pass != SOC_TPLG_PASS_PCM_DAI)
536 return;
537
538 if (dobj->ops && dobj->ops->link_unload)
539 dobj->ops->link_unload(comp, dobj);
540
541 list_del(&dobj->list);
542 snd_soc_remove_pcm_runtime(comp->card,
543 snd_soc_get_pcm_runtime(comp->card, link));
544
545 kfree(link->name);
546 kfree(link->stream_name);
547 kfree(link->cpus->dai_name);
548 kfree(link);
549}
550
551/* unload dai link */
552static void remove_backend_link(struct snd_soc_component *comp,
553 struct snd_soc_dobj *dobj, int pass)
554{
555 if (pass != SOC_TPLG_PASS_LINK)
556 return;
557
558 if (dobj->ops && dobj->ops->link_unload)
559 dobj->ops->link_unload(comp, dobj);
560
561 /*
562 * We don't free the link here as what remove_link() do since BE
563 * links are not allocated by topology.
564 * We however need to reset the dobj type to its initial values
565 */
566 dobj->type = SND_SOC_DOBJ_NONE;
567 list_del(&dobj->list);
568}
569
570/* bind a kcontrol to it's IO handlers */
571static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
572 struct snd_kcontrol_new *k,
573 const struct soc_tplg *tplg)
574{
575 const struct snd_soc_tplg_kcontrol_ops *ops;
576 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
577 int num_ops, i;
578
579 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
580 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
581 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
582 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
583 struct soc_bytes_ext *sbe;
584 struct snd_soc_tplg_bytes_control *be;
585
586 sbe = (struct soc_bytes_ext *)k->private_value;
587 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
588
589 /* TLV bytes controls need standard kcontrol info handler,
590 * TLV callback and extended put/get handlers.
591 */
592 k->info = snd_soc_bytes_info_ext;
593 k->tlv.c = snd_soc_bytes_tlv_callback;
594
595 ext_ops = tplg->bytes_ext_ops;
596 num_ops = tplg->bytes_ext_ops_count;
597 for (i = 0; i < num_ops; i++) {
598 if (!sbe->put &&
599 ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
600 sbe->put = ext_ops[i].put;
601 if (!sbe->get &&
602 ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
603 sbe->get = ext_ops[i].get;
604 }
605
606 if (sbe->put && sbe->get)
607 return 0;
608 else
609 return -EINVAL;
610 }
611
612 /* try and map vendor specific kcontrol handlers first */
613 ops = tplg->io_ops;
614 num_ops = tplg->io_ops_count;
615 for (i = 0; i < num_ops; i++) {
616
617 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
618 k->put = ops[i].put;
619 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
620 k->get = ops[i].get;
621 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
622 k->info = ops[i].info;
623 }
624
625 /* vendor specific handlers found ? */
626 if (k->put && k->get && k->info)
627 return 0;
628
629 /* none found so try standard kcontrol handlers */
630 ops = io_ops;
631 num_ops = ARRAY_SIZE(io_ops);
632 for (i = 0; i < num_ops; i++) {
633
634 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
635 k->put = ops[i].put;
636 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
637 k->get = ops[i].get;
638 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
639 k->info = ops[i].info;
640 }
641
642 /* standard handlers found ? */
643 if (k->put && k->get && k->info)
644 return 0;
645
646 /* nothing to bind */
647 return -EINVAL;
648}
649
650/* bind a widgets to it's evnt handlers */
651int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
652 const struct snd_soc_tplg_widget_events *events,
653 int num_events, u16 event_type)
654{
655 int i;
656
657 w->event = NULL;
658
659 for (i = 0; i < num_events; i++) {
660 if (event_type == events[i].type) {
661
662 /* found - so assign event */
663 w->event = events[i].event_handler;
664 return 0;
665 }
666 }
667
668 /* not found */
669 return -EINVAL;
670}
671EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
672
673/* optionally pass new dynamic kcontrol to component driver. */
674static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
675 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
676{
677 if (tplg->ops && tplg->ops->control_load)
678 return tplg->ops->control_load(tplg->comp, tplg->index, k,
679 hdr);
680
681 return 0;
682}
683
684
685static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
686 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
687{
688 unsigned int item_len = 2 * sizeof(unsigned int);
689 unsigned int *p;
690
691 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
692 if (!p)
693 return -ENOMEM;
694
695 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
696 p[1] = item_len;
697 p[2] = le32_to_cpu(scale->min);
698 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
699 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
700
701 kc->tlv.p = (void *)p;
702 return 0;
703}
704
705static int soc_tplg_create_tlv(struct soc_tplg *tplg,
706 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
707{
708 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
709 u32 access = le32_to_cpu(tc->access);
710
711 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
712 return 0;
713
714 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
715 tplg_tlv = &tc->tlv;
716 switch (le32_to_cpu(tplg_tlv->type)) {
717 case SNDRV_CTL_TLVT_DB_SCALE:
718 return soc_tplg_create_tlv_db_scale(tplg, kc,
719 &tplg_tlv->scale);
720
721 /* TODO: add support for other TLV types */
722 default:
723 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
724 tplg_tlv->type);
725 return -EINVAL;
726 }
727 }
728
729 return 0;
730}
731
732static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
733 struct snd_kcontrol_new *kc)
734{
735 kfree(kc->tlv.p);
736}
737
738static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
739 size_t size)
740{
741 struct snd_soc_tplg_bytes_control *be;
742 struct soc_bytes_ext *sbe;
743 struct snd_kcontrol_new kc;
744 int i;
745 int err = 0;
746
747 if (soc_tplg_check_elem_count(tplg,
748 sizeof(struct snd_soc_tplg_bytes_control), count,
749 size, "mixer bytes")) {
750 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
751 count);
752 return -EINVAL;
753 }
754
755 for (i = 0; i < count; i++) {
756 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
757
758 /* validate kcontrol */
759 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
760 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
761 return -EINVAL;
762
763 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
764 if (sbe == NULL)
765 return -ENOMEM;
766
767 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
768 le32_to_cpu(be->priv.size));
769
770 dev_dbg(tplg->dev,
771 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
772 be->hdr.name, be->hdr.access);
773
774 memset(&kc, 0, sizeof(kc));
775 kc.name = be->hdr.name;
776 kc.private_value = (long)sbe;
777 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
778 kc.access = le32_to_cpu(be->hdr.access);
779
780 sbe->max = le32_to_cpu(be->max);
781 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
782 sbe->dobj.ops = tplg->ops;
783 INIT_LIST_HEAD(&sbe->dobj.list);
784
785 /* map io handlers */
786 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
787 if (err) {
788 soc_control_err(tplg, &be->hdr, be->hdr.name);
789 kfree(sbe);
790 break;
791 }
792
793 /* pass control to driver for optional further init */
794 err = soc_tplg_init_kcontrol(tplg, &kc,
795 (struct snd_soc_tplg_ctl_hdr *)be);
796 if (err < 0) {
797 dev_err(tplg->dev, "ASoC: failed to init %s\n",
798 be->hdr.name);
799 kfree(sbe);
800 break;
801 }
802
803 /* register control here */
804 err = soc_tplg_add_kcontrol(tplg, &kc,
805 &sbe->dobj.control.kcontrol);
806 if (err < 0) {
807 dev_err(tplg->dev, "ASoC: failed to add %s\n",
808 be->hdr.name);
809 kfree(sbe);
810 break;
811 }
812
813 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
814 }
815 return err;
816
817}
818
819static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
820 size_t size)
821{
822 struct snd_soc_tplg_mixer_control *mc;
823 struct soc_mixer_control *sm;
824 struct snd_kcontrol_new kc;
825 int i;
826 int err = 0;
827
828 if (soc_tplg_check_elem_count(tplg,
829 sizeof(struct snd_soc_tplg_mixer_control),
830 count, size, "mixers")) {
831
832 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
833 count);
834 return -EINVAL;
835 }
836
837 for (i = 0; i < count; i++) {
838 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
839
840 /* validate kcontrol */
841 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
842 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
843 return -EINVAL;
844
845 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
846 if (sm == NULL)
847 return -ENOMEM;
848 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
849 le32_to_cpu(mc->priv.size));
850
851 dev_dbg(tplg->dev,
852 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
853 mc->hdr.name, mc->hdr.access);
854
855 memset(&kc, 0, sizeof(kc));
856 kc.name = mc->hdr.name;
857 kc.private_value = (long)sm;
858 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
859 kc.access = le32_to_cpu(mc->hdr.access);
860
861 /* we only support FL/FR channel mapping atm */
862 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
863 SNDRV_CHMAP_FL);
864 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
865 SNDRV_CHMAP_FR);
866 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
867 SNDRV_CHMAP_FL);
868 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
869 SNDRV_CHMAP_FR);
870
871 sm->max = le32_to_cpu(mc->max);
872 sm->min = le32_to_cpu(mc->min);
873 sm->invert = le32_to_cpu(mc->invert);
874 sm->platform_max = le32_to_cpu(mc->platform_max);
875 sm->dobj.index = tplg->index;
876 sm->dobj.ops = tplg->ops;
877 sm->dobj.type = SND_SOC_DOBJ_MIXER;
878 INIT_LIST_HEAD(&sm->dobj.list);
879
880 /* map io handlers */
881 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
882 if (err) {
883 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
884 kfree(sm);
885 break;
886 }
887
888 /* create any TLV data */
889 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
890 if (err < 0) {
891 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
892 mc->hdr.name);
893 kfree(sm);
894 break;
895 }
896
897 /* pass control to driver for optional further init */
898 err = soc_tplg_init_kcontrol(tplg, &kc,
899 (struct snd_soc_tplg_ctl_hdr *) mc);
900 if (err < 0) {
901 dev_err(tplg->dev, "ASoC: failed to init %s\n",
902 mc->hdr.name);
903 soc_tplg_free_tlv(tplg, &kc);
904 kfree(sm);
905 break;
906 }
907
908 /* register control here */
909 err = soc_tplg_add_kcontrol(tplg, &kc,
910 &sm->dobj.control.kcontrol);
911 if (err < 0) {
912 dev_err(tplg->dev, "ASoC: failed to add %s\n",
913 mc->hdr.name);
914 soc_tplg_free_tlv(tplg, &kc);
915 kfree(sm);
916 break;
917 }
918
919 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
920 }
921
922 return err;
923}
924
925static int soc_tplg_denum_create_texts(struct soc_enum *se,
926 struct snd_soc_tplg_enum_control *ec)
927{
928 int i, ret;
929
930 se->dobj.control.dtexts =
931 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
932 if (se->dobj.control.dtexts == NULL)
933 return -ENOMEM;
934
935 for (i = 0; i < le32_to_cpu(ec->items); i++) {
936
937 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
938 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
939 ret = -EINVAL;
940 goto err;
941 }
942
943 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
944 if (!se->dobj.control.dtexts[i]) {
945 ret = -ENOMEM;
946 goto err;
947 }
948 }
949
950 se->items = le32_to_cpu(ec->items);
951 se->texts = (const char * const *)se->dobj.control.dtexts;
952 return 0;
953
954err:
955 se->items = i;
956 soc_tplg_denum_remove_texts(se);
957 return ret;
958}
959
960static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
961{
962 int i = se->items;
963
964 for (--i; i >= 0; i--)
965 kfree(se->dobj.control.dtexts[i]);
966 kfree(se->dobj.control.dtexts);
967}
968
969static int soc_tplg_denum_create_values(struct soc_enum *se,
970 struct snd_soc_tplg_enum_control *ec)
971{
972 int i;
973
974 if (le32_to_cpu(ec->items) > sizeof(*ec->values))
975 return -EINVAL;
976
977 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
978 sizeof(u32),
979 GFP_KERNEL);
980 if (!se->dobj.control.dvalues)
981 return -ENOMEM;
982
983 /* convert from little-endian */
984 for (i = 0; i < le32_to_cpu(ec->items); i++) {
985 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
986 }
987
988 return 0;
989}
990
991static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
992{
993 kfree(se->dobj.control.dvalues);
994}
995
996static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
997 size_t size)
998{
999 struct snd_soc_tplg_enum_control *ec;
1000 struct soc_enum *se;
1001 struct snd_kcontrol_new kc;
1002 int i;
1003 int err = 0;
1004
1005 if (soc_tplg_check_elem_count(tplg,
1006 sizeof(struct snd_soc_tplg_enum_control),
1007 count, size, "enums")) {
1008
1009 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1010 count);
1011 return -EINVAL;
1012 }
1013
1014 for (i = 0; i < count; i++) {
1015 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1016
1017 /* validate kcontrol */
1018 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1019 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1020 return -EINVAL;
1021
1022 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1023 if (se == NULL)
1024 return -ENOMEM;
1025
1026 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1027 le32_to_cpu(ec->priv.size));
1028
1029 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1030 ec->hdr.name, ec->items);
1031
1032 memset(&kc, 0, sizeof(kc));
1033 kc.name = ec->hdr.name;
1034 kc.private_value = (long)se;
1035 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1036 kc.access = le32_to_cpu(ec->hdr.access);
1037
1038 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1039 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1040 SNDRV_CHMAP_FL);
1041 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1042 SNDRV_CHMAP_FL);
1043
1044 se->mask = le32_to_cpu(ec->mask);
1045 se->dobj.index = tplg->index;
1046 se->dobj.type = SND_SOC_DOBJ_ENUM;
1047 se->dobj.ops = tplg->ops;
1048 INIT_LIST_HEAD(&se->dobj.list);
1049
1050 switch (le32_to_cpu(ec->hdr.ops.info)) {
1051 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1052 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1053 err = soc_tplg_denum_create_values(se, ec);
1054 if (err < 0) {
1055 dev_err(tplg->dev,
1056 "ASoC: could not create values for %s\n",
1057 ec->hdr.name);
1058 goto err_denum;
1059 }
1060 fallthrough;
1061 case SND_SOC_TPLG_CTL_ENUM:
1062 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1063 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1064 err = soc_tplg_denum_create_texts(se, ec);
1065 if (err < 0) {
1066 dev_err(tplg->dev,
1067 "ASoC: could not create texts for %s\n",
1068 ec->hdr.name);
1069 goto err_denum;
1070 }
1071 break;
1072 default:
1073 err = -EINVAL;
1074 dev_err(tplg->dev,
1075 "ASoC: invalid enum control type %d for %s\n",
1076 ec->hdr.ops.info, ec->hdr.name);
1077 goto err_denum;
1078 }
1079
1080 /* map io handlers */
1081 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1082 if (err) {
1083 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1084 goto err_denum;
1085 }
1086
1087 /* pass control to driver for optional further init */
1088 err = soc_tplg_init_kcontrol(tplg, &kc,
1089 (struct snd_soc_tplg_ctl_hdr *) ec);
1090 if (err < 0) {
1091 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1092 ec->hdr.name);
1093 goto err_denum;
1094 }
1095
1096 /* register control here */
1097 err = soc_tplg_add_kcontrol(tplg,
1098 &kc, &se->dobj.control.kcontrol);
1099 if (err < 0) {
1100 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1101 ec->hdr.name);
1102 goto err_denum;
1103 }
1104
1105 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1106 }
1107 return 0;
1108
1109err_denum:
1110 kfree(se);
1111 return err;
1112}
1113
1114static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1115 struct snd_soc_tplg_hdr *hdr)
1116{
1117 struct snd_soc_tplg_ctl_hdr *control_hdr;
1118 int ret;
1119 int i;
1120
1121 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1122 soc_tplg_get_offset(tplg));
1123
1124 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1125
1126 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1127
1128 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1129 dev_err(tplg->dev, "ASoC: invalid control size\n");
1130 return -EINVAL;
1131 }
1132
1133 switch (le32_to_cpu(control_hdr->ops.info)) {
1134 case SND_SOC_TPLG_CTL_VOLSW:
1135 case SND_SOC_TPLG_CTL_STROBE:
1136 case SND_SOC_TPLG_CTL_VOLSW_SX:
1137 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1138 case SND_SOC_TPLG_CTL_RANGE:
1139 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1140 case SND_SOC_TPLG_DAPM_CTL_PIN:
1141 ret = soc_tplg_dmixer_create(tplg, 1,
1142 le32_to_cpu(hdr->payload_size));
1143 break;
1144 case SND_SOC_TPLG_CTL_ENUM:
1145 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1146 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1147 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1148 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1149 ret = soc_tplg_denum_create(tplg, 1,
1150 le32_to_cpu(hdr->payload_size));
1151 break;
1152 case SND_SOC_TPLG_CTL_BYTES:
1153 ret = soc_tplg_dbytes_create(tplg, 1,
1154 le32_to_cpu(hdr->payload_size));
1155 break;
1156 default:
1157 soc_bind_err(tplg, control_hdr, i);
1158 return -EINVAL;
1159 }
1160 if (ret < 0) {
1161 dev_err(tplg->dev, "ASoC: invalid control\n");
1162 return ret;
1163 }
1164
1165 }
1166
1167 return 0;
1168}
1169
1170/* optionally pass new dynamic kcontrol to component driver. */
1171static int soc_tplg_add_route(struct soc_tplg *tplg,
1172 struct snd_soc_dapm_route *route)
1173{
1174 if (tplg->ops && tplg->ops->dapm_route_load)
1175 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1176 route);
1177
1178 return 0;
1179}
1180
1181static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1182 struct snd_soc_tplg_hdr *hdr)
1183{
1184 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1185 struct snd_soc_tplg_dapm_graph_elem *elem;
1186 struct snd_soc_dapm_route **routes;
1187 int count, i, j;
1188 int ret = 0;
1189
1190 count = le32_to_cpu(hdr->count);
1191
1192 if (soc_tplg_check_elem_count(tplg,
1193 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1194 count, le32_to_cpu(hdr->payload_size), "graph")) {
1195
1196 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1197 count);
1198 return -EINVAL;
1199 }
1200
1201 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1202 hdr->index);
1203
1204 /* allocate memory for pointer to array of dapm routes */
1205 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1206 GFP_KERNEL);
1207 if (!routes)
1208 return -ENOMEM;
1209
1210 /*
1211 * allocate memory for each dapm route in the array.
1212 * This needs to be done individually so that
1213 * each route can be freed when it is removed in remove_route().
1214 */
1215 for (i = 0; i < count; i++) {
1216 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1217 if (!routes[i]) {
1218 /* free previously allocated memory */
1219 for (j = 0; j < i; j++)
1220 kfree(routes[j]);
1221
1222 kfree(routes);
1223 return -ENOMEM;
1224 }
1225 }
1226
1227 for (i = 0; i < count; i++) {
1228 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1229 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1230
1231 /* validate routes */
1232 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1233 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1234 ret = -EINVAL;
1235 break;
1236 }
1237 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1238 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1239 ret = -EINVAL;
1240 break;
1241 }
1242 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1243 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1244 ret = -EINVAL;
1245 break;
1246 }
1247
1248 routes[i]->source = elem->source;
1249 routes[i]->sink = elem->sink;
1250
1251 /* set to NULL atm for tplg users */
1252 routes[i]->connected = NULL;
1253 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1254 routes[i]->control = NULL;
1255 else
1256 routes[i]->control = elem->control;
1257
1258 /* add route dobj to dobj_list */
1259 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1260 routes[i]->dobj.ops = tplg->ops;
1261 routes[i]->dobj.index = tplg->index;
1262 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1263
1264 ret = soc_tplg_add_route(tplg, routes[i]);
1265 if (ret < 0) {
1266 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
1267 /*
1268 * this route was added to the list, it will
1269 * be freed in remove_route() so increment the
1270 * counter to skip it in the error handling
1271 * below.
1272 */
1273 i++;
1274 break;
1275 }
1276
1277 /* add route, but keep going if some fail */
1278 snd_soc_dapm_add_routes(dapm, routes[i], 1);
1279 }
1280
1281 /*
1282 * free memory allocated for all dapm routes not added to the
1283 * list in case of error
1284 */
1285 if (ret < 0) {
1286 while (i < count)
1287 kfree(routes[i++]);
1288 }
1289
1290 /*
1291 * free pointer to array of dapm routes as this is no longer needed.
1292 * The memory allocated for each dapm route will be freed
1293 * when it is removed in remove_route().
1294 */
1295 kfree(routes);
1296
1297 return ret;
1298}
1299
1300static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1301 struct soc_tplg *tplg, int num_kcontrols)
1302{
1303 struct snd_kcontrol_new *kc;
1304 struct soc_mixer_control *sm;
1305 struct snd_soc_tplg_mixer_control *mc;
1306 int i, err;
1307
1308 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1309 if (kc == NULL)
1310 return NULL;
1311
1312 for (i = 0; i < num_kcontrols; i++) {
1313 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1314
1315 /* validate kcontrol */
1316 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1317 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1318 goto err_sm;
1319
1320 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1321 if (sm == NULL)
1322 goto err_sm;
1323
1324 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1325 le32_to_cpu(mc->priv.size));
1326
1327 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1328 mc->hdr.name, i);
1329
1330 kc[i].private_value = (long)sm;
1331 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1332 if (kc[i].name == NULL)
1333 goto err_sm;
1334 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1335 kc[i].access = le32_to_cpu(mc->hdr.access);
1336
1337 /* we only support FL/FR channel mapping atm */
1338 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1339 SNDRV_CHMAP_FL);
1340 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1341 SNDRV_CHMAP_FR);
1342 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1343 SNDRV_CHMAP_FL);
1344 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1345 SNDRV_CHMAP_FR);
1346
1347 sm->max = le32_to_cpu(mc->max);
1348 sm->min = le32_to_cpu(mc->min);
1349 sm->invert = le32_to_cpu(mc->invert);
1350 sm->platform_max = le32_to_cpu(mc->platform_max);
1351 sm->dobj.index = tplg->index;
1352 INIT_LIST_HEAD(&sm->dobj.list);
1353
1354 /* map io handlers */
1355 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1356 if (err) {
1357 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1358 goto err_sm;
1359 }
1360
1361 /* create any TLV data */
1362 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1363 if (err < 0) {
1364 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
1365 mc->hdr.name);
1366 goto err_sm;
1367 }
1368
1369 /* pass control to driver for optional further init */
1370 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1371 (struct snd_soc_tplg_ctl_hdr *)mc);
1372 if (err < 0) {
1373 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1374 mc->hdr.name);
1375 goto err_sm;
1376 }
1377 }
1378 return kc;
1379
1380err_sm:
1381 for (; i >= 0; i--) {
1382 soc_tplg_free_tlv(tplg, &kc[i]);
1383 sm = (struct soc_mixer_control *)kc[i].private_value;
1384 kfree(sm);
1385 kfree(kc[i].name);
1386 }
1387 kfree(kc);
1388
1389 return NULL;
1390}
1391
1392static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1393 struct soc_tplg *tplg, int num_kcontrols)
1394{
1395 struct snd_kcontrol_new *kc;
1396 struct snd_soc_tplg_enum_control *ec;
1397 struct soc_enum *se;
1398 int i, err;
1399
1400 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1401 if (kc == NULL)
1402 return NULL;
1403
1404 for (i = 0; i < num_kcontrols; i++) {
1405 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1406 /* validate kcontrol */
1407 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1408 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1409 goto err_se;
1410
1411 se = kzalloc(sizeof(*se), GFP_KERNEL);
1412 if (se == NULL)
1413 goto err_se;
1414
1415 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1416 le32_to_cpu(ec->priv.size));
1417
1418 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1419 ec->hdr.name);
1420
1421 kc[i].private_value = (long)se;
1422 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1423 if (kc[i].name == NULL)
1424 goto err_se;
1425 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1426 kc[i].access = le32_to_cpu(ec->hdr.access);
1427
1428 /* we only support FL/FR channel mapping atm */
1429 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1430 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1431 SNDRV_CHMAP_FL);
1432 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1433 SNDRV_CHMAP_FR);
1434
1435 se->items = le32_to_cpu(ec->items);
1436 se->mask = le32_to_cpu(ec->mask);
1437 se->dobj.index = tplg->index;
1438
1439 switch (le32_to_cpu(ec->hdr.ops.info)) {
1440 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1441 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1442 err = soc_tplg_denum_create_values(se, ec);
1443 if (err < 0) {
1444 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1445 ec->hdr.name);
1446 goto err_se;
1447 }
1448 fallthrough;
1449 case SND_SOC_TPLG_CTL_ENUM:
1450 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1451 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1452 err = soc_tplg_denum_create_texts(se, ec);
1453 if (err < 0) {
1454 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1455 ec->hdr.name);
1456 goto err_se;
1457 }
1458 break;
1459 default:
1460 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1461 ec->hdr.ops.info, ec->hdr.name);
1462 goto err_se;
1463 }
1464
1465 /* map io handlers */
1466 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1467 if (err) {
1468 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1469 goto err_se;
1470 }
1471
1472 /* pass control to driver for optional further init */
1473 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1474 (struct snd_soc_tplg_ctl_hdr *)ec);
1475 if (err < 0) {
1476 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1477 ec->hdr.name);
1478 goto err_se;
1479 }
1480 }
1481
1482 return kc;
1483
1484err_se:
1485 for (; i >= 0; i--) {
1486 /* free values and texts */
1487 se = (struct soc_enum *)kc[i].private_value;
1488
1489 if (se) {
1490 soc_tplg_denum_remove_values(se);
1491 soc_tplg_denum_remove_texts(se);
1492 }
1493
1494 kfree(se);
1495 kfree(kc[i].name);
1496 }
1497 kfree(kc);
1498
1499 return NULL;
1500}
1501
1502static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1503 struct soc_tplg *tplg, int num_kcontrols)
1504{
1505 struct snd_soc_tplg_bytes_control *be;
1506 struct soc_bytes_ext *sbe;
1507 struct snd_kcontrol_new *kc;
1508 int i, err;
1509
1510 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1511 if (!kc)
1512 return NULL;
1513
1514 for (i = 0; i < num_kcontrols; i++) {
1515 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1516
1517 /* validate kcontrol */
1518 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1519 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1520 goto err_sbe;
1521
1522 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1523 if (sbe == NULL)
1524 goto err_sbe;
1525
1526 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1527 le32_to_cpu(be->priv.size));
1528
1529 dev_dbg(tplg->dev,
1530 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1531 be->hdr.name, be->hdr.access);
1532
1533 kc[i].private_value = (long)sbe;
1534 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1535 if (kc[i].name == NULL)
1536 goto err_sbe;
1537 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1538 kc[i].access = le32_to_cpu(be->hdr.access);
1539
1540 sbe->max = le32_to_cpu(be->max);
1541 INIT_LIST_HEAD(&sbe->dobj.list);
1542
1543 /* map standard io handlers and check for external handlers */
1544 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1545 if (err) {
1546 soc_control_err(tplg, &be->hdr, be->hdr.name);
1547 goto err_sbe;
1548 }
1549
1550 /* pass control to driver for optional further init */
1551 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1552 (struct snd_soc_tplg_ctl_hdr *)be);
1553 if (err < 0) {
1554 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1555 be->hdr.name);
1556 goto err_sbe;
1557 }
1558 }
1559
1560 return kc;
1561
1562err_sbe:
1563 for (; i >= 0; i--) {
1564 sbe = (struct soc_bytes_ext *)kc[i].private_value;
1565 kfree(sbe);
1566 kfree(kc[i].name);
1567 }
1568 kfree(kc);
1569
1570 return NULL;
1571}
1572
1573static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1574 struct snd_soc_tplg_dapm_widget *w)
1575{
1576 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1577 struct snd_soc_dapm_widget template, *widget;
1578 struct snd_soc_tplg_ctl_hdr *control_hdr;
1579 struct snd_soc_card *card = tplg->comp->card;
1580 unsigned int kcontrol_type;
1581 int ret = 0;
1582
1583 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1584 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1585 return -EINVAL;
1586 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1587 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1588 return -EINVAL;
1589
1590 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1591 w->name, w->id);
1592
1593 memset(&template, 0, sizeof(template));
1594
1595 /* map user to kernel widget ID */
1596 template.id = get_widget_id(le32_to_cpu(w->id));
1597 if ((int)template.id < 0)
1598 return template.id;
1599
1600 /* strings are allocated here, but used and freed by the widget */
1601 template.name = kstrdup(w->name, GFP_KERNEL);
1602 if (!template.name)
1603 return -ENOMEM;
1604 template.sname = kstrdup(w->sname, GFP_KERNEL);
1605 if (!template.sname) {
1606 ret = -ENOMEM;
1607 goto err;
1608 }
1609 template.reg = le32_to_cpu(w->reg);
1610 template.shift = le32_to_cpu(w->shift);
1611 template.mask = le32_to_cpu(w->mask);
1612 template.subseq = le32_to_cpu(w->subseq);
1613 template.on_val = w->invert ? 0 : 1;
1614 template.off_val = w->invert ? 1 : 0;
1615 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1616 template.event_flags = le16_to_cpu(w->event_flags);
1617 template.dobj.index = tplg->index;
1618
1619 tplg->pos +=
1620 (sizeof(struct snd_soc_tplg_dapm_widget) +
1621 le32_to_cpu(w->priv.size));
1622
1623 if (w->num_kcontrols == 0) {
1624 kcontrol_type = 0;
1625 template.num_kcontrols = 0;
1626 goto widget;
1627 }
1628
1629 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1630 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1631 w->name, w->num_kcontrols, control_hdr->type);
1632
1633 switch (le32_to_cpu(control_hdr->ops.info)) {
1634 case SND_SOC_TPLG_CTL_VOLSW:
1635 case SND_SOC_TPLG_CTL_STROBE:
1636 case SND_SOC_TPLG_CTL_VOLSW_SX:
1637 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1638 case SND_SOC_TPLG_CTL_RANGE:
1639 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1640 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1641 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1642 template.kcontrol_news =
1643 soc_tplg_dapm_widget_dmixer_create(tplg,
1644 template.num_kcontrols);
1645 if (!template.kcontrol_news) {
1646 ret = -ENOMEM;
1647 goto hdr_err;
1648 }
1649 break;
1650 case SND_SOC_TPLG_CTL_ENUM:
1651 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1652 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1653 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1654 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1655 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1656 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1657 template.kcontrol_news =
1658 soc_tplg_dapm_widget_denum_create(tplg,
1659 template.num_kcontrols);
1660 if (!template.kcontrol_news) {
1661 ret = -ENOMEM;
1662 goto hdr_err;
1663 }
1664 break;
1665 case SND_SOC_TPLG_CTL_BYTES:
1666 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1667 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1668 template.kcontrol_news =
1669 soc_tplg_dapm_widget_dbytes_create(tplg,
1670 template.num_kcontrols);
1671 if (!template.kcontrol_news) {
1672 ret = -ENOMEM;
1673 goto hdr_err;
1674 }
1675 break;
1676 default:
1677 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1678 control_hdr->ops.get, control_hdr->ops.put,
1679 le32_to_cpu(control_hdr->ops.info));
1680 ret = -EINVAL;
1681 goto hdr_err;
1682 }
1683
1684widget:
1685 ret = soc_tplg_widget_load(tplg, &template, w);
1686 if (ret < 0)
1687 goto hdr_err;
1688
1689 /* card dapm mutex is held by the core if we are loading topology
1690 * data during sound card init. */
1691 if (card->instantiated)
1692 widget = snd_soc_dapm_new_control(dapm, &template);
1693 else
1694 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1695 if (IS_ERR(widget)) {
1696 ret = PTR_ERR(widget);
1697 goto hdr_err;
1698 }
1699
1700 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1701 widget->dobj.widget.kcontrol_type = kcontrol_type;
1702 widget->dobj.ops = tplg->ops;
1703 widget->dobj.index = tplg->index;
1704 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1705
1706 ret = soc_tplg_widget_ready(tplg, widget, w);
1707 if (ret < 0)
1708 goto ready_err;
1709
1710 kfree(template.sname);
1711 kfree(template.name);
1712
1713 return 0;
1714
1715ready_err:
1716 snd_soc_tplg_widget_remove(widget);
1717 snd_soc_dapm_free_widget(widget);
1718hdr_err:
1719 kfree(template.sname);
1720err:
1721 kfree(template.name);
1722 return ret;
1723}
1724
1725static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1726 struct snd_soc_tplg_hdr *hdr)
1727{
1728 struct snd_soc_tplg_dapm_widget *widget;
1729 int ret, count, i;
1730
1731 count = le32_to_cpu(hdr->count);
1732
1733 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1734
1735 for (i = 0; i < count; i++) {
1736 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1737 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1738 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1739 return -EINVAL;
1740 }
1741
1742 ret = soc_tplg_dapm_widget_create(tplg, widget);
1743 if (ret < 0) {
1744 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1745 widget->name);
1746 return ret;
1747 }
1748 }
1749
1750 return 0;
1751}
1752
1753static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1754{
1755 struct snd_soc_card *card = tplg->comp->card;
1756 int ret;
1757
1758 /* Card might not have been registered at this point.
1759 * If so, just return success.
1760 */
1761 if (!card || !card->instantiated) {
1762 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1763 " widget card binding deferred\n");
1764 return 0;
1765 }
1766
1767 ret = snd_soc_dapm_new_widgets(card);
1768 if (ret < 0)
1769 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1770 ret);
1771
1772 return 0;
1773}
1774
1775static int set_stream_info(struct snd_soc_pcm_stream *stream,
1776 struct snd_soc_tplg_stream_caps *caps)
1777{
1778 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1779 if (!stream->stream_name)
1780 return -ENOMEM;
1781
1782 stream->channels_min = le32_to_cpu(caps->channels_min);
1783 stream->channels_max = le32_to_cpu(caps->channels_max);
1784 stream->rates = le32_to_cpu(caps->rates);
1785 stream->rate_min = le32_to_cpu(caps->rate_min);
1786 stream->rate_max = le32_to_cpu(caps->rate_max);
1787 stream->formats = le64_to_cpu(caps->formats);
1788 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1789
1790 return 0;
1791}
1792
1793static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1794 unsigned int flag_mask, unsigned int flags)
1795{
1796 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1797 dai_drv->symmetric_rates =
1798 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1799
1800 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1801 dai_drv->symmetric_channels =
1802 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1803 1 : 0;
1804
1805 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1806 dai_drv->symmetric_samplebits =
1807 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1808 1 : 0;
1809}
1810
1811static int soc_tplg_dai_create(struct soc_tplg *tplg,
1812 struct snd_soc_tplg_pcm *pcm)
1813{
1814 struct snd_soc_dai_driver *dai_drv;
1815 struct snd_soc_pcm_stream *stream;
1816 struct snd_soc_tplg_stream_caps *caps;
1817 struct snd_soc_dai *dai;
1818 struct snd_soc_dapm_context *dapm =
1819 snd_soc_component_get_dapm(tplg->comp);
1820 int ret;
1821
1822 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1823 if (dai_drv == NULL)
1824 return -ENOMEM;
1825
1826 if (strlen(pcm->dai_name)) {
1827 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1828 if (!dai_drv->name) {
1829 ret = -ENOMEM;
1830 goto err;
1831 }
1832 }
1833 dai_drv->id = le32_to_cpu(pcm->dai_id);
1834
1835 if (pcm->playback) {
1836 stream = &dai_drv->playback;
1837 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1838 ret = set_stream_info(stream, caps);
1839 if (ret < 0)
1840 goto err;
1841 }
1842
1843 if (pcm->capture) {
1844 stream = &dai_drv->capture;
1845 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1846 ret = set_stream_info(stream, caps);
1847 if (ret < 0)
1848 goto err;
1849 }
1850
1851 if (pcm->compress)
1852 dai_drv->compress_new = snd_soc_new_compress;
1853
1854 /* pass control to component driver for optional further init */
1855 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1856 if (ret < 0) {
1857 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1858 goto err;
1859 }
1860
1861 dai_drv->dobj.index = tplg->index;
1862 dai_drv->dobj.ops = tplg->ops;
1863 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1864 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1865
1866 /* register the DAI to the component */
1867 dai = devm_snd_soc_register_dai(tplg->comp->dev, tplg->comp, dai_drv, false);
1868 if (!dai)
1869 return -ENOMEM;
1870
1871 /* Create the DAI widgets here */
1872 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1873 if (ret != 0) {
1874 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1875 return ret;
1876 }
1877
1878 return 0;
1879
1880err:
1881 kfree(dai_drv->playback.stream_name);
1882 kfree(dai_drv->capture.stream_name);
1883 kfree(dai_drv->name);
1884 kfree(dai_drv);
1885
1886 return ret;
1887}
1888
1889static void set_link_flags(struct snd_soc_dai_link *link,
1890 unsigned int flag_mask, unsigned int flags)
1891{
1892 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1893 link->symmetric_rates =
1894 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1895
1896 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1897 link->symmetric_channels =
1898 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1899 1 : 0;
1900
1901 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1902 link->symmetric_samplebits =
1903 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1904 1 : 0;
1905
1906 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1907 link->ignore_suspend =
1908 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1909 1 : 0;
1910}
1911
1912/* create the FE DAI link */
1913static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1914 struct snd_soc_tplg_pcm *pcm)
1915{
1916 struct snd_soc_dai_link *link;
1917 struct snd_soc_dai_link_component *dlc;
1918 int ret;
1919
1920 /* link + cpu + codec + platform */
1921 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1922 if (link == NULL)
1923 return -ENOMEM;
1924
1925 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1926
1927 link->cpus = &dlc[0];
1928 link->codecs = &dlc[1];
1929 link->platforms = &dlc[2];
1930
1931 link->num_cpus = 1;
1932 link->num_codecs = 1;
1933 link->num_platforms = 1;
1934
1935 link->dobj.index = tplg->index;
1936 link->dobj.ops = tplg->ops;
1937 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1938
1939 if (strlen(pcm->pcm_name)) {
1940 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1941 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1942 if (!link->name || !link->stream_name) {
1943 ret = -ENOMEM;
1944 goto err;
1945 }
1946 }
1947 link->id = le32_to_cpu(pcm->pcm_id);
1948
1949 if (strlen(pcm->dai_name)) {
1950 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1951 if (!link->cpus->dai_name) {
1952 ret = -ENOMEM;
1953 goto err;
1954 }
1955 }
1956
1957 link->codecs->name = "snd-soc-dummy";
1958 link->codecs->dai_name = "snd-soc-dummy-dai";
1959
1960 link->platforms->name = "snd-soc-dummy";
1961
1962 /* enable DPCM */
1963 link->dynamic = 1;
1964 link->dpcm_playback = le32_to_cpu(pcm->playback);
1965 link->dpcm_capture = le32_to_cpu(pcm->capture);
1966 if (pcm->flag_mask)
1967 set_link_flags(link,
1968 le32_to_cpu(pcm->flag_mask),
1969 le32_to_cpu(pcm->flags));
1970
1971 /* pass control to component driver for optional further init */
1972 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1973 if (ret < 0) {
1974 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1975 goto err;
1976 }
1977
1978 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link);
1979 if (ret < 0) {
1980 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n");
1981 goto err;
1982 }
1983
1984 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1985
1986 return 0;
1987err:
1988 kfree(link->name);
1989 kfree(link->stream_name);
1990 kfree(link->cpus->dai_name);
1991 kfree(link);
1992 return ret;
1993}
1994
1995/* create a FE DAI and DAI link from the PCM object */
1996static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1997 struct snd_soc_tplg_pcm *pcm)
1998{
1999 int ret;
2000
2001 ret = soc_tplg_dai_create(tplg, pcm);
2002 if (ret < 0)
2003 return ret;
2004
2005 return soc_tplg_fe_link_create(tplg, pcm);
2006}
2007
2008/* copy stream caps from the old version 4 of source */
2009static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
2010 struct snd_soc_tplg_stream_caps_v4 *src)
2011{
2012 dest->size = cpu_to_le32(sizeof(*dest));
2013 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2014 dest->formats = src->formats;
2015 dest->rates = src->rates;
2016 dest->rate_min = src->rate_min;
2017 dest->rate_max = src->rate_max;
2018 dest->channels_min = src->channels_min;
2019 dest->channels_max = src->channels_max;
2020 dest->periods_min = src->periods_min;
2021 dest->periods_max = src->periods_max;
2022 dest->period_size_min = src->period_size_min;
2023 dest->period_size_max = src->period_size_max;
2024 dest->buffer_size_min = src->buffer_size_min;
2025 dest->buffer_size_max = src->buffer_size_max;
2026}
2027
2028/**
2029 * pcm_new_ver - Create the new version of PCM from the old version.
2030 * @tplg: topology context
2031 * @src: older version of pcm as a source
2032 * @pcm: latest version of pcm created from the source
2033 *
2034 * Support from vesion 4. User should free the returned pcm manually.
2035 */
2036static int pcm_new_ver(struct soc_tplg *tplg,
2037 struct snd_soc_tplg_pcm *src,
2038 struct snd_soc_tplg_pcm **pcm)
2039{
2040 struct snd_soc_tplg_pcm *dest;
2041 struct snd_soc_tplg_pcm_v4 *src_v4;
2042 int i;
2043
2044 *pcm = NULL;
2045
2046 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
2047 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
2048 return -EINVAL;
2049 }
2050
2051 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
2052 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
2053 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2054 if (!dest)
2055 return -ENOMEM;
2056
2057 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2058 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2059 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2060 dest->pcm_id = src_v4->pcm_id;
2061 dest->dai_id = src_v4->dai_id;
2062 dest->playback = src_v4->playback;
2063 dest->capture = src_v4->capture;
2064 dest->compress = src_v4->compress;
2065 dest->num_streams = src_v4->num_streams;
2066 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2067 memcpy(&dest->stream[i], &src_v4->stream[i],
2068 sizeof(struct snd_soc_tplg_stream));
2069
2070 for (i = 0; i < 2; i++)
2071 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2072
2073 *pcm = dest;
2074 return 0;
2075}
2076
2077static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2078 struct snd_soc_tplg_hdr *hdr)
2079{
2080 struct snd_soc_tplg_pcm *pcm, *_pcm;
2081 int count;
2082 int size;
2083 int i;
2084 bool abi_match;
2085 int ret;
2086
2087 count = le32_to_cpu(hdr->count);
2088
2089 /* check the element size and count */
2090 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2091 size = le32_to_cpu(pcm->size);
2092 if (size > sizeof(struct snd_soc_tplg_pcm)
2093 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2094 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2095 size);
2096 return -EINVAL;
2097 }
2098
2099 if (soc_tplg_check_elem_count(tplg,
2100 size, count,
2101 le32_to_cpu(hdr->payload_size),
2102 "PCM DAI")) {
2103 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2104 count);
2105 return -EINVAL;
2106 }
2107
2108 for (i = 0; i < count; i++) {
2109 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2110 size = le32_to_cpu(pcm->size);
2111
2112 /* check ABI version by size, create a new version of pcm
2113 * if abi not match.
2114 */
2115 if (size == sizeof(*pcm)) {
2116 abi_match = true;
2117 _pcm = pcm;
2118 } else {
2119 abi_match = false;
2120 ret = pcm_new_ver(tplg, pcm, &_pcm);
2121 if (ret < 0)
2122 return ret;
2123 }
2124
2125 /* create the FE DAIs and DAI links */
2126 ret = soc_tplg_pcm_create(tplg, _pcm);
2127 if (ret < 0) {
2128 if (!abi_match)
2129 kfree(_pcm);
2130 return ret;
2131 }
2132
2133 /* offset by version-specific struct size and
2134 * real priv data size
2135 */
2136 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2137
2138 if (!abi_match)
2139 kfree(_pcm); /* free the duplicated one */
2140 }
2141
2142 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2143
2144 return 0;
2145}
2146
2147/**
2148 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2149 * @link: &snd_soc_dai_link which should be updated
2150 * @cfg: physical link configs.
2151 *
2152 * Topology context contains a list of supported HW formats (configs) and
2153 * a default format ID for the physical link. This function will use this
2154 * default ID to choose the HW format to set the link's DAI format for init.
2155 */
2156static void set_link_hw_format(struct snd_soc_dai_link *link,
2157 struct snd_soc_tplg_link_config *cfg)
2158{
2159 struct snd_soc_tplg_hw_config *hw_config;
2160 unsigned char bclk_master, fsync_master;
2161 unsigned char invert_bclk, invert_fsync;
2162 int i;
2163
2164 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2165 hw_config = &cfg->hw_config[i];
2166 if (hw_config->id != cfg->default_hw_config_id)
2167 continue;
2168
2169 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2170 SND_SOC_DAIFMT_FORMAT_MASK;
2171
2172 /* clock gating */
2173 switch (hw_config->clock_gated) {
2174 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2175 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2176 break;
2177
2178 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2179 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2180 break;
2181
2182 default:
2183 /* ignore the value */
2184 break;
2185 }
2186
2187 /* clock signal polarity */
2188 invert_bclk = hw_config->invert_bclk;
2189 invert_fsync = hw_config->invert_fsync;
2190 if (!invert_bclk && !invert_fsync)
2191 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2192 else if (!invert_bclk && invert_fsync)
2193 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2194 else if (invert_bclk && !invert_fsync)
2195 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2196 else
2197 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2198
2199 /* clock masters */
2200 bclk_master = (hw_config->bclk_master ==
2201 SND_SOC_TPLG_BCLK_CM);
2202 fsync_master = (hw_config->fsync_master ==
2203 SND_SOC_TPLG_FSYNC_CM);
2204 if (bclk_master && fsync_master)
2205 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2206 else if (!bclk_master && fsync_master)
2207 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2208 else if (bclk_master && !fsync_master)
2209 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2210 else
2211 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2212 }
2213}
2214
2215/**
2216 * link_new_ver - Create a new physical link config from the old
2217 * version of source.
2218 * @tplg: topology context
2219 * @src: old version of phyical link config as a source
2220 * @link: latest version of physical link config created from the source
2221 *
2222 * Support from vesion 4. User need free the returned link config manually.
2223 */
2224static int link_new_ver(struct soc_tplg *tplg,
2225 struct snd_soc_tplg_link_config *src,
2226 struct snd_soc_tplg_link_config **link)
2227{
2228 struct snd_soc_tplg_link_config *dest;
2229 struct snd_soc_tplg_link_config_v4 *src_v4;
2230 int i;
2231
2232 *link = NULL;
2233
2234 if (le32_to_cpu(src->size) !=
2235 sizeof(struct snd_soc_tplg_link_config_v4)) {
2236 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2237 return -EINVAL;
2238 }
2239
2240 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2241
2242 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2243 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2244 if (!dest)
2245 return -ENOMEM;
2246
2247 dest->size = cpu_to_le32(sizeof(*dest));
2248 dest->id = src_v4->id;
2249 dest->num_streams = src_v4->num_streams;
2250 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2251 memcpy(&dest->stream[i], &src_v4->stream[i],
2252 sizeof(struct snd_soc_tplg_stream));
2253
2254 *link = dest;
2255 return 0;
2256}
2257
2258/**
2259 * snd_soc_find_dai_link - Find a DAI link
2260 *
2261 * @card: soc card
2262 * @id: DAI link ID to match
2263 * @name: DAI link name to match, optional
2264 * @stream_name: DAI link stream name to match, optional
2265 *
2266 * This function will search all existing DAI links of the soc card to
2267 * find the link of the same ID. Since DAI links may not have their
2268 * unique ID, so name and stream name should also match if being
2269 * specified.
2270 *
2271 * Return: pointer of DAI link, or NULL if not found.
2272 */
2273static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
2274 int id, const char *name,
2275 const char *stream_name)
2276{
2277 struct snd_soc_pcm_runtime *rtd;
2278 struct snd_soc_dai_link *link;
2279
2280 for_each_card_rtds(card, rtd) {
2281 link = rtd->dai_link;
2282
2283 if (link->id != id)
2284 continue;
2285
2286 if (name && (!link->name || strcmp(name, link->name)))
2287 continue;
2288
2289 if (stream_name && (!link->stream_name
2290 || strcmp(stream_name, link->stream_name)))
2291 continue;
2292
2293 return link;
2294 }
2295
2296 return NULL;
2297}
2298
2299/* Find and configure an existing physical DAI link */
2300static int soc_tplg_link_config(struct soc_tplg *tplg,
2301 struct snd_soc_tplg_link_config *cfg)
2302{
2303 struct snd_soc_dai_link *link;
2304 const char *name, *stream_name;
2305 size_t len;
2306 int ret;
2307
2308 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2309 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2310 return -EINVAL;
2311 else if (len)
2312 name = cfg->name;
2313 else
2314 name = NULL;
2315
2316 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2317 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2318 return -EINVAL;
2319 else if (len)
2320 stream_name = cfg->stream_name;
2321 else
2322 stream_name = NULL;
2323
2324 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2325 name, stream_name);
2326 if (!link) {
2327 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2328 name, cfg->id);
2329 return -EINVAL;
2330 }
2331
2332 /* hw format */
2333 if (cfg->num_hw_configs)
2334 set_link_hw_format(link, cfg);
2335
2336 /* flags */
2337 if (cfg->flag_mask)
2338 set_link_flags(link,
2339 le32_to_cpu(cfg->flag_mask),
2340 le32_to_cpu(cfg->flags));
2341
2342 /* pass control to component driver for optional further init */
2343 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2344 if (ret < 0) {
2345 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2346 return ret;
2347 }
2348
2349 /* for unloading it in snd_soc_tplg_component_remove */
2350 link->dobj.index = tplg->index;
2351 link->dobj.ops = tplg->ops;
2352 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2353 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2354
2355 return 0;
2356}
2357
2358
2359/* Load physical link config elements from the topology context */
2360static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2361 struct snd_soc_tplg_hdr *hdr)
2362{
2363 struct snd_soc_tplg_link_config *link, *_link;
2364 int count;
2365 int size;
2366 int i, ret;
2367 bool abi_match;
2368
2369 count = le32_to_cpu(hdr->count);
2370
2371 /* check the element size and count */
2372 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2373 size = le32_to_cpu(link->size);
2374 if (size > sizeof(struct snd_soc_tplg_link_config)
2375 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2376 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2377 size);
2378 return -EINVAL;
2379 }
2380
2381 if (soc_tplg_check_elem_count(tplg,
2382 size, count,
2383 le32_to_cpu(hdr->payload_size),
2384 "physical link config")) {
2385 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2386 count);
2387 return -EINVAL;
2388 }
2389
2390 /* config physical DAI links */
2391 for (i = 0; i < count; i++) {
2392 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2393 size = le32_to_cpu(link->size);
2394 if (size == sizeof(*link)) {
2395 abi_match = true;
2396 _link = link;
2397 } else {
2398 abi_match = false;
2399 ret = link_new_ver(tplg, link, &_link);
2400 if (ret < 0)
2401 return ret;
2402 }
2403
2404 ret = soc_tplg_link_config(tplg, _link);
2405 if (ret < 0) {
2406 if (!abi_match)
2407 kfree(_link);
2408 return ret;
2409 }
2410
2411 /* offset by version-specific struct size and
2412 * real priv data size
2413 */
2414 tplg->pos += size + le32_to_cpu(_link->priv.size);
2415
2416 if (!abi_match)
2417 kfree(_link); /* free the duplicated one */
2418 }
2419
2420 return 0;
2421}
2422
2423/**
2424 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2425 * @tplg: topology context
2426 * @d: physical DAI configs.
2427 *
2428 * The physical dai should already be registered by the platform driver.
2429 * The platform driver should specify the DAI name and ID for matching.
2430 */
2431static int soc_tplg_dai_config(struct soc_tplg *tplg,
2432 struct snd_soc_tplg_dai *d)
2433{
2434 struct snd_soc_dai_link_component dai_component;
2435 struct snd_soc_dai *dai;
2436 struct snd_soc_dai_driver *dai_drv;
2437 struct snd_soc_pcm_stream *stream;
2438 struct snd_soc_tplg_stream_caps *caps;
2439 int ret;
2440
2441 memset(&dai_component, 0, sizeof(dai_component));
2442
2443 dai_component.dai_name = d->dai_name;
2444 dai = snd_soc_find_dai(&dai_component);
2445 if (!dai) {
2446 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2447 d->dai_name);
2448 return -EINVAL;
2449 }
2450
2451 if (le32_to_cpu(d->dai_id) != dai->id) {
2452 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2453 d->dai_name);
2454 return -EINVAL;
2455 }
2456
2457 dai_drv = dai->driver;
2458 if (!dai_drv)
2459 return -EINVAL;
2460
2461 if (d->playback) {
2462 stream = &dai_drv->playback;
2463 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2464 ret = set_stream_info(stream, caps);
2465 if (ret < 0)
2466 goto err;
2467 }
2468
2469 if (d->capture) {
2470 stream = &dai_drv->capture;
2471 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2472 ret = set_stream_info(stream, caps);
2473 if (ret < 0)
2474 goto err;
2475 }
2476
2477 if (d->flag_mask)
2478 set_dai_flags(dai_drv,
2479 le32_to_cpu(d->flag_mask),
2480 le32_to_cpu(d->flags));
2481
2482 /* pass control to component driver for optional further init */
2483 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2484 if (ret < 0) {
2485 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2486 goto err;
2487 }
2488
2489 return 0;
2490
2491err:
2492 kfree(dai_drv->playback.stream_name);
2493 kfree(dai_drv->capture.stream_name);
2494 return ret;
2495}
2496
2497/* load physical DAI elements */
2498static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2499 struct snd_soc_tplg_hdr *hdr)
2500{
2501 struct snd_soc_tplg_dai *dai;
2502 int count;
2503 int i, ret;
2504
2505 count = le32_to_cpu(hdr->count);
2506
2507 /* config the existing BE DAIs */
2508 for (i = 0; i < count; i++) {
2509 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2510 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2511 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2512 return -EINVAL;
2513 }
2514
2515 ret = soc_tplg_dai_config(tplg, dai);
2516 if (ret < 0) {
2517 dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
2518 return ret;
2519 }
2520
2521 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2522 }
2523
2524 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2525 return 0;
2526}
2527
2528/**
2529 * manifest_new_ver - Create a new version of manifest from the old version
2530 * of source.
2531 * @tplg: topology context
2532 * @src: old version of manifest as a source
2533 * @manifest: latest version of manifest created from the source
2534 *
2535 * Support from vesion 4. Users need free the returned manifest manually.
2536 */
2537static int manifest_new_ver(struct soc_tplg *tplg,
2538 struct snd_soc_tplg_manifest *src,
2539 struct snd_soc_tplg_manifest **manifest)
2540{
2541 struct snd_soc_tplg_manifest *dest;
2542 struct snd_soc_tplg_manifest_v4 *src_v4;
2543 int size;
2544
2545 *manifest = NULL;
2546
2547 size = le32_to_cpu(src->size);
2548 if (size != sizeof(*src_v4)) {
2549 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2550 size);
2551 if (size)
2552 return -EINVAL;
2553 src->size = cpu_to_le32(sizeof(*src_v4));
2554 }
2555
2556 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2557
2558 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2559 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2560 GFP_KERNEL);
2561 if (!dest)
2562 return -ENOMEM;
2563
2564 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2565 dest->control_elems = src_v4->control_elems;
2566 dest->widget_elems = src_v4->widget_elems;
2567 dest->graph_elems = src_v4->graph_elems;
2568 dest->pcm_elems = src_v4->pcm_elems;
2569 dest->dai_link_elems = src_v4->dai_link_elems;
2570 dest->priv.size = src_v4->priv.size;
2571 if (dest->priv.size)
2572 memcpy(dest->priv.data, src_v4->priv.data,
2573 le32_to_cpu(src_v4->priv.size));
2574
2575 *manifest = dest;
2576 return 0;
2577}
2578
2579static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2580 struct snd_soc_tplg_hdr *hdr)
2581{
2582 struct snd_soc_tplg_manifest *manifest, *_manifest;
2583 bool abi_match;
2584 int ret = 0;
2585
2586 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2587
2588 /* check ABI version by size, create a new manifest if abi not match */
2589 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2590 abi_match = true;
2591 _manifest = manifest;
2592 } else {
2593 abi_match = false;
2594 ret = manifest_new_ver(tplg, manifest, &_manifest);
2595 if (ret < 0)
2596 return ret;
2597 }
2598
2599 /* pass control to component driver for optional further init */
2600 if (tplg->ops && tplg->ops->manifest)
2601 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2602
2603 if (!abi_match) /* free the duplicated one */
2604 kfree(_manifest);
2605
2606 return ret;
2607}
2608
2609/* validate header magic, size and type */
2610static int soc_valid_header(struct soc_tplg *tplg,
2611 struct snd_soc_tplg_hdr *hdr)
2612{
2613 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2614 return 0;
2615
2616 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2617 dev_err(tplg->dev,
2618 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2619 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2620 tplg->fw->size);
2621 return -EINVAL;
2622 }
2623
2624 /* big endian firmware objects not supported atm */
2625 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2626 dev_err(tplg->dev,
2627 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2628 tplg->pass, hdr->magic,
2629 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2630 return -EINVAL;
2631 }
2632
2633 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2634 dev_err(tplg->dev,
2635 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2636 tplg->pass, hdr->magic,
2637 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2638 return -EINVAL;
2639 }
2640
2641 /* Support ABI from version 4 */
2642 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2643 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2644 dev_err(tplg->dev,
2645 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2646 tplg->pass, hdr->abi,
2647 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2648 tplg->fw->size);
2649 return -EINVAL;
2650 }
2651
2652 if (hdr->payload_size == 0) {
2653 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2654 soc_tplg_get_hdr_offset(tplg));
2655 return -EINVAL;
2656 }
2657
2658 return 1;
2659}
2660
2661/* check header type and call appropriate handler */
2662static int soc_tplg_load_header(struct soc_tplg *tplg,
2663 struct snd_soc_tplg_hdr *hdr)
2664{
2665 int (*elem_load)(struct soc_tplg *tplg,
2666 struct snd_soc_tplg_hdr *hdr);
2667 unsigned int hdr_pass;
2668
2669 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2670
2671 /* check for matching ID */
2672 if (le32_to_cpu(hdr->index) != tplg->req_index &&
2673 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2674 return 0;
2675
2676 tplg->index = le32_to_cpu(hdr->index);
2677
2678 switch (le32_to_cpu(hdr->type)) {
2679 case SND_SOC_TPLG_TYPE_MIXER:
2680 case SND_SOC_TPLG_TYPE_ENUM:
2681 case SND_SOC_TPLG_TYPE_BYTES:
2682 hdr_pass = SOC_TPLG_PASS_MIXER;
2683 elem_load = soc_tplg_kcontrol_elems_load;
2684 break;
2685 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2686 hdr_pass = SOC_TPLG_PASS_GRAPH;
2687 elem_load = soc_tplg_dapm_graph_elems_load;
2688 break;
2689 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2690 hdr_pass = SOC_TPLG_PASS_WIDGET;
2691 elem_load = soc_tplg_dapm_widget_elems_load;
2692 break;
2693 case SND_SOC_TPLG_TYPE_PCM:
2694 hdr_pass = SOC_TPLG_PASS_PCM_DAI;
2695 elem_load = soc_tplg_pcm_elems_load;
2696 break;
2697 case SND_SOC_TPLG_TYPE_DAI:
2698 hdr_pass = SOC_TPLG_PASS_BE_DAI;
2699 elem_load = soc_tplg_dai_elems_load;
2700 break;
2701 case SND_SOC_TPLG_TYPE_DAI_LINK:
2702 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2703 /* physical link configurations */
2704 hdr_pass = SOC_TPLG_PASS_LINK;
2705 elem_load = soc_tplg_link_elems_load;
2706 break;
2707 case SND_SOC_TPLG_TYPE_MANIFEST:
2708 hdr_pass = SOC_TPLG_PASS_MANIFEST;
2709 elem_load = soc_tplg_manifest_load;
2710 break;
2711 default:
2712 /* bespoke vendor data object */
2713 hdr_pass = SOC_TPLG_PASS_VENDOR;
2714 elem_load = soc_tplg_vendor_load;
2715 break;
2716 }
2717
2718 if (tplg->pass == hdr_pass) {
2719 dev_dbg(tplg->dev,
2720 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2721 hdr->payload_size, hdr->type, hdr->version,
2722 hdr->vendor_type, tplg->pass);
2723 return elem_load(tplg, hdr);
2724 }
2725
2726 return 0;
2727}
2728
2729/* process the topology file headers */
2730static int soc_tplg_process_headers(struct soc_tplg *tplg)
2731{
2732 struct snd_soc_tplg_hdr *hdr;
2733 int ret;
2734
2735 tplg->pass = SOC_TPLG_PASS_START;
2736
2737 /* process the header types from start to end */
2738 while (tplg->pass <= SOC_TPLG_PASS_END) {
2739
2740 tplg->hdr_pos = tplg->fw->data;
2741 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2742
2743 while (!soc_tplg_is_eof(tplg)) {
2744
2745 /* make sure header is valid before loading */
2746 ret = soc_valid_header(tplg, hdr);
2747 if (ret < 0) {
2748 dev_err(tplg->dev,
2749 "ASoC: topology: invalid header: %d\n", ret);
2750 return ret;
2751 } else if (ret == 0) {
2752 break;
2753 }
2754
2755 /* load the header object */
2756 ret = soc_tplg_load_header(tplg, hdr);
2757 if (ret < 0) {
2758 dev_err(tplg->dev,
2759 "ASoC: topology: could not load header: %d\n", ret);
2760 return ret;
2761 }
2762
2763 /* goto next header */
2764 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2765 sizeof(struct snd_soc_tplg_hdr);
2766 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2767 }
2768
2769 /* next data type pass */
2770 tplg->pass++;
2771 }
2772
2773 /* signal DAPM we are complete */
2774 ret = soc_tplg_dapm_complete(tplg);
2775 if (ret < 0)
2776 dev_err(tplg->dev,
2777 "ASoC: failed to initialise DAPM from Firmware\n");
2778
2779 return ret;
2780}
2781
2782static int soc_tplg_load(struct soc_tplg *tplg)
2783{
2784 int ret;
2785
2786 ret = soc_tplg_process_headers(tplg);
2787 if (ret == 0)
2788 soc_tplg_complete(tplg);
2789
2790 return ret;
2791}
2792
2793/* load audio component topology from "firmware" file */
2794int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2795 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2796{
2797 struct soc_tplg tplg;
2798 int ret;
2799
2800 /* component needs to exist to keep and reference data while parsing */
2801 if (!comp)
2802 return -EINVAL;
2803
2804 /* setup parsing context */
2805 memset(&tplg, 0, sizeof(tplg));
2806 tplg.fw = fw;
2807 tplg.dev = comp->dev;
2808 tplg.comp = comp;
2809 tplg.ops = ops;
2810 tplg.req_index = id;
2811 tplg.io_ops = ops->io_ops;
2812 tplg.io_ops_count = ops->io_ops_count;
2813 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2814 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2815
2816 ret = soc_tplg_load(&tplg);
2817 /* free the created components if fail to load topology */
2818 if (ret)
2819 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2820
2821 return ret;
2822}
2823EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2824
2825/* remove this dynamic widget */
2826void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2827{
2828 /* make sure we are a widget */
2829 if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2830 return;
2831
2832 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2833}
2834EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2835
2836/* remove all dynamic widgets from this DAPM context */
2837void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2838 u32 index)
2839{
2840 struct snd_soc_dapm_widget *w, *next_w;
2841
2842 for_each_card_widgets_safe(dapm->card, w, next_w) {
2843
2844 /* make sure we are a widget with correct context */
2845 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2846 continue;
2847
2848 /* match ID */
2849 if (w->dobj.index != index &&
2850 w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2851 continue;
2852 /* check and free and dynamic widget kcontrols */
2853 snd_soc_tplg_widget_remove(w);
2854 snd_soc_dapm_free_widget(w);
2855 }
2856 snd_soc_dapm_reset_cache(dapm);
2857}
2858EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2859
2860/* remove dynamic controls from the component driver */
2861int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2862{
2863 struct snd_soc_dobj *dobj, *next_dobj;
2864 int pass = SOC_TPLG_PASS_END;
2865
2866 /* process the header types from end to start */
2867 while (pass >= SOC_TPLG_PASS_START) {
2868
2869 /* remove mixer controls */
2870 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2871 list) {
2872
2873 /* match index */
2874 if (dobj->index != index &&
2875 index != SND_SOC_TPLG_INDEX_ALL)
2876 continue;
2877
2878 switch (dobj->type) {
2879 case SND_SOC_DOBJ_MIXER:
2880 remove_mixer(comp, dobj, pass);
2881 break;
2882 case SND_SOC_DOBJ_ENUM:
2883 remove_enum(comp, dobj, pass);
2884 break;
2885 case SND_SOC_DOBJ_BYTES:
2886 remove_bytes(comp, dobj, pass);
2887 break;
2888 case SND_SOC_DOBJ_GRAPH:
2889 remove_route(comp, dobj, pass);
2890 break;
2891 case SND_SOC_DOBJ_WIDGET:
2892 remove_widget(comp, dobj, pass);
2893 break;
2894 case SND_SOC_DOBJ_PCM:
2895 remove_dai(comp, dobj, pass);
2896 break;
2897 case SND_SOC_DOBJ_DAI_LINK:
2898 remove_link(comp, dobj, pass);
2899 break;
2900 case SND_SOC_DOBJ_BACKEND_LINK:
2901 /*
2902 * call link_unload ops if extra
2903 * deinitialization is needed.
2904 */
2905 remove_backend_link(comp, dobj, pass);
2906 break;
2907 default:
2908 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2909 dobj->type);
2910 break;
2911 }
2912 }
2913 pass--;
2914 }
2915
2916 /* let caller know if FW can be freed when no objects are left */
2917 return !list_empty(&comp->dobj_list);
2918}
2919EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
1/*
2 * soc-topology.c -- ALSA SoC Topology
3 *
4 * Copyright (C) 2012 Texas Instruments Inc.
5 * Copyright (C) 2015 Intel Corporation.
6 *
7 * Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
8 * K, Mythri P <mythri.p.k@intel.com>
9 * Prusty, Subhransu S <subhransu.s.prusty@intel.com>
10 * B, Jayachandran <jayachandran.b@intel.com>
11 * Abdullah, Omair M <omair.m.abdullah@intel.com>
12 * Jin, Yao <yao.jin@intel.com>
13 * Lin, Mengdong <mengdong.lin@intel.com>
14 *
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the
17 * Free Software Foundation; either version 2 of the License, or (at your
18 * option) any later version.
19 *
20 * Add support to read audio firmware topology alongside firmware text. The
21 * topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
22 * equalizers, firmware, coefficients etc.
23 *
24 * This file only manages the core ALSA and ASoC components, all other bespoke
25 * firmware topology data is passed to component drivers for bespoke handling.
26 */
27
28#include <linux/kernel.h>
29#include <linux/export.h>
30#include <linux/list.h>
31#include <linux/firmware.h>
32#include <linux/slab.h>
33#include <sound/soc.h>
34#include <sound/soc-dapm.h>
35#include <sound/soc-topology.h>
36#include <sound/tlv.h>
37
38/*
39 * We make several passes over the data (since it wont necessarily be ordered)
40 * and process objects in the following order. This guarantees the component
41 * drivers will be ready with any vendor data before the mixers and DAPM objects
42 * are loaded (that may make use of the vendor data).
43 */
44#define SOC_TPLG_PASS_MANIFEST 0
45#define SOC_TPLG_PASS_VENDOR 1
46#define SOC_TPLG_PASS_MIXER 2
47#define SOC_TPLG_PASS_WIDGET 3
48#define SOC_TPLG_PASS_PCM_DAI 4
49#define SOC_TPLG_PASS_GRAPH 5
50#define SOC_TPLG_PASS_PINS 6
51#define SOC_TPLG_PASS_BE_DAI 7
52#define SOC_TPLG_PASS_LINK 8
53
54#define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST
55#define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK
56
57/*
58 * Old version of ABI structs, supported for backward compatibility.
59 */
60
61/* Manifest v4 */
62struct snd_soc_tplg_manifest_v4 {
63 __le32 size; /* in bytes of this structure */
64 __le32 control_elems; /* number of control elements */
65 __le32 widget_elems; /* number of widget elements */
66 __le32 graph_elems; /* number of graph elements */
67 __le32 pcm_elems; /* number of PCM elements */
68 __le32 dai_link_elems; /* number of DAI link elements */
69 struct snd_soc_tplg_private priv;
70} __packed;
71
72/* Stream Capabilities v4 */
73struct snd_soc_tplg_stream_caps_v4 {
74 __le32 size; /* in bytes of this structure */
75 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
76 __le64 formats; /* supported formats SNDRV_PCM_FMTBIT_* */
77 __le32 rates; /* supported rates SNDRV_PCM_RATE_* */
78 __le32 rate_min; /* min rate */
79 __le32 rate_max; /* max rate */
80 __le32 channels_min; /* min channels */
81 __le32 channels_max; /* max channels */
82 __le32 periods_min; /* min number of periods */
83 __le32 periods_max; /* max number of periods */
84 __le32 period_size_min; /* min period size bytes */
85 __le32 period_size_max; /* max period size bytes */
86 __le32 buffer_size_min; /* min buffer size bytes */
87 __le32 buffer_size_max; /* max buffer size bytes */
88} __packed;
89
90/* PCM v4 */
91struct snd_soc_tplg_pcm_v4 {
92 __le32 size; /* in bytes of this structure */
93 char pcm_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
94 char dai_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
95 __le32 pcm_id; /* unique ID - used to match with DAI link */
96 __le32 dai_id; /* unique ID - used to match */
97 __le32 playback; /* supports playback mode */
98 __le32 capture; /* supports capture mode */
99 __le32 compress; /* 1 = compressed; 0 = PCM */
100 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* for DAI link */
101 __le32 num_streams; /* number of streams */
102 struct snd_soc_tplg_stream_caps_v4 caps[2]; /* playback and capture for DAI */
103} __packed;
104
105/* Physical link config v4 */
106struct snd_soc_tplg_link_config_v4 {
107 __le32 size; /* in bytes of this structure */
108 __le32 id; /* unique ID - used to match */
109 struct snd_soc_tplg_stream stream[SND_SOC_TPLG_STREAM_CONFIG_MAX]; /* supported configs playback and captrure */
110 __le32 num_streams; /* number of streams */
111} __packed;
112
113/* topology context */
114struct soc_tplg {
115 const struct firmware *fw;
116
117 /* runtime FW parsing */
118 const u8 *pos; /* read postion */
119 const u8 *hdr_pos; /* header position */
120 unsigned int pass; /* pass number */
121
122 /* component caller */
123 struct device *dev;
124 struct snd_soc_component *comp;
125 u32 index; /* current block index */
126 u32 req_index; /* required index, only loaded/free matching blocks */
127
128 /* vendor specific kcontrol operations */
129 const struct snd_soc_tplg_kcontrol_ops *io_ops;
130 int io_ops_count;
131
132 /* vendor specific bytes ext handlers, for TLV bytes controls */
133 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
134 int bytes_ext_ops_count;
135
136 /* optional fw loading callbacks to component drivers */
137 struct snd_soc_tplg_ops *ops;
138};
139
140static int soc_tplg_process_headers(struct soc_tplg *tplg);
141static void soc_tplg_complete(struct soc_tplg *tplg);
142struct snd_soc_dapm_widget *
143snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
144 const struct snd_soc_dapm_widget *widget);
145struct snd_soc_dapm_widget *
146snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
147 const struct snd_soc_dapm_widget *widget);
148
149/* check we dont overflow the data for this control chunk */
150static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
151 unsigned int count, size_t bytes, const char *elem_type)
152{
153 const u8 *end = tplg->pos + elem_size * count;
154
155 if (end > tplg->fw->data + tplg->fw->size) {
156 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
157 elem_type);
158 return -EINVAL;
159 }
160
161 /* check there is enough room in chunk for control.
162 extra bytes at the end of control are for vendor data here */
163 if (elem_size * count > bytes) {
164 dev_err(tplg->dev,
165 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
166 elem_type, count, elem_size, bytes);
167 return -EINVAL;
168 }
169
170 return 0;
171}
172
173static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
174{
175 const u8 *end = tplg->hdr_pos;
176
177 if (end >= tplg->fw->data + tplg->fw->size)
178 return 1;
179 return 0;
180}
181
182static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
183{
184 return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
185}
186
187static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
188{
189 return (unsigned long)(tplg->pos - tplg->fw->data);
190}
191
192/* mapping of Kcontrol types and associated operations. */
193static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
194 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
195 snd_soc_put_volsw, snd_soc_info_volsw},
196 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
197 snd_soc_put_volsw_sx, NULL},
198 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
199 snd_soc_put_enum_double, snd_soc_info_enum_double},
200 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
201 snd_soc_put_enum_double, NULL},
202 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
203 snd_soc_bytes_put, snd_soc_bytes_info},
204 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
205 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
206 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
207 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
208 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
209 snd_soc_put_strobe, NULL},
210 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
211 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
212 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
213 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
214 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
215 snd_soc_dapm_put_enum_double, NULL},
216 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
217 snd_soc_dapm_put_enum_double, NULL},
218 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
219 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
220};
221
222struct soc_tplg_map {
223 int uid;
224 int kid;
225};
226
227/* mapping of widget types from UAPI IDs to kernel IDs */
228static const struct soc_tplg_map dapm_map[] = {
229 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
230 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
231 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
232 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
233 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
234 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
235 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
236 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
237 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
238 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
239 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
240 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
241 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
242 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
243 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
244 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
245 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
246 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
247 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
248 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
249 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
250 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
251 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
252 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
253};
254
255static int tplc_chan_get_reg(struct soc_tplg *tplg,
256 struct snd_soc_tplg_channel *chan, int map)
257{
258 int i;
259
260 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
261 if (chan[i].id == map)
262 return chan[i].reg;
263 }
264
265 return -EINVAL;
266}
267
268static int tplc_chan_get_shift(struct soc_tplg *tplg,
269 struct snd_soc_tplg_channel *chan, int map)
270{
271 int i;
272
273 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
274 if (chan[i].id == map)
275 return chan[i].shift;
276 }
277
278 return -EINVAL;
279}
280
281static int get_widget_id(int tplg_type)
282{
283 int i;
284
285 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
286 if (tplg_type == dapm_map[i].uid)
287 return dapm_map[i].kid;
288 }
289
290 return -EINVAL;
291}
292
293static inline void soc_bind_err(struct soc_tplg *tplg,
294 struct snd_soc_tplg_ctl_hdr *hdr, int index)
295{
296 dev_err(tplg->dev,
297 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
298 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
299 soc_tplg_get_offset(tplg));
300}
301
302static inline void soc_control_err(struct soc_tplg *tplg,
303 struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
304{
305 dev_err(tplg->dev,
306 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
307 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
308 soc_tplg_get_offset(tplg));
309}
310
311/* pass vendor data to component driver for processing */
312static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
313 struct snd_soc_tplg_hdr *hdr)
314{
315 int ret = 0;
316
317 if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
318 ret = tplg->ops->vendor_load(tplg->comp, hdr);
319 else {
320 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
321 hdr->vendor_type);
322 return -EINVAL;
323 }
324
325 if (ret < 0)
326 dev_err(tplg->dev,
327 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
328 soc_tplg_get_hdr_offset(tplg),
329 soc_tplg_get_hdr_offset(tplg),
330 hdr->type, hdr->vendor_type);
331 return ret;
332}
333
334/* pass vendor data to component driver for processing */
335static int soc_tplg_vendor_load(struct soc_tplg *tplg,
336 struct snd_soc_tplg_hdr *hdr)
337{
338 if (tplg->pass != SOC_TPLG_PASS_VENDOR)
339 return 0;
340
341 return soc_tplg_vendor_load_(tplg, hdr);
342}
343
344/* optionally pass new dynamic widget to component driver. This is mainly for
345 * external widgets where we can assign private data/ops */
346static int soc_tplg_widget_load(struct soc_tplg *tplg,
347 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
348{
349 if (tplg->comp && tplg->ops && tplg->ops->widget_load)
350 return tplg->ops->widget_load(tplg->comp, w, tplg_w);
351
352 return 0;
353}
354
355/* optionally pass new dynamic widget to component driver. This is mainly for
356 * external widgets where we can assign private data/ops */
357static int soc_tplg_widget_ready(struct soc_tplg *tplg,
358 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
359{
360 if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
361 return tplg->ops->widget_ready(tplg->comp, w, tplg_w);
362
363 return 0;
364}
365
366/* pass DAI configurations to component driver for extra initialization */
367static int soc_tplg_dai_load(struct soc_tplg *tplg,
368 struct snd_soc_dai_driver *dai_drv)
369{
370 if (tplg->comp && tplg->ops && tplg->ops->dai_load)
371 return tplg->ops->dai_load(tplg->comp, dai_drv);
372
373 return 0;
374}
375
376/* pass link configurations to component driver for extra initialization */
377static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
378 struct snd_soc_dai_link *link)
379{
380 if (tplg->comp && tplg->ops && tplg->ops->link_load)
381 return tplg->ops->link_load(tplg->comp, link);
382
383 return 0;
384}
385
386/* tell the component driver that all firmware has been loaded in this request */
387static void soc_tplg_complete(struct soc_tplg *tplg)
388{
389 if (tplg->comp && tplg->ops && tplg->ops->complete)
390 tplg->ops->complete(tplg->comp);
391}
392
393/* add a dynamic kcontrol */
394static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
395 const struct snd_kcontrol_new *control_new, const char *prefix,
396 void *data, struct snd_kcontrol **kcontrol)
397{
398 int err;
399
400 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
401 if (*kcontrol == NULL) {
402 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
403 control_new->name);
404 return -ENOMEM;
405 }
406
407 err = snd_ctl_add(card, *kcontrol);
408 if (err < 0) {
409 dev_err(dev, "ASoC: Failed to add %s: %d\n",
410 control_new->name, err);
411 return err;
412 }
413
414 return 0;
415}
416
417/* add a dynamic kcontrol for component driver */
418static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
419 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
420{
421 struct snd_soc_component *comp = tplg->comp;
422
423 return soc_tplg_add_dcontrol(comp->card->snd_card,
424 comp->dev, k, NULL, comp, kcontrol);
425}
426
427/* remove a mixer kcontrol */
428static void remove_mixer(struct snd_soc_component *comp,
429 struct snd_soc_dobj *dobj, int pass)
430{
431 struct snd_card *card = comp->card->snd_card;
432 struct soc_mixer_control *sm =
433 container_of(dobj, struct soc_mixer_control, dobj);
434 const unsigned int *p = NULL;
435
436 if (pass != SOC_TPLG_PASS_MIXER)
437 return;
438
439 if (dobj->ops && dobj->ops->control_unload)
440 dobj->ops->control_unload(comp, dobj);
441
442 if (sm->dobj.control.kcontrol->tlv.p)
443 p = sm->dobj.control.kcontrol->tlv.p;
444 snd_ctl_remove(card, sm->dobj.control.kcontrol);
445 list_del(&sm->dobj.list);
446 kfree(sm);
447 kfree(p);
448}
449
450/* remove an enum kcontrol */
451static void remove_enum(struct snd_soc_component *comp,
452 struct snd_soc_dobj *dobj, int pass)
453{
454 struct snd_card *card = comp->card->snd_card;
455 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
456 int i;
457
458 if (pass != SOC_TPLG_PASS_MIXER)
459 return;
460
461 if (dobj->ops && dobj->ops->control_unload)
462 dobj->ops->control_unload(comp, dobj);
463
464 snd_ctl_remove(card, se->dobj.control.kcontrol);
465 list_del(&se->dobj.list);
466
467 kfree(se->dobj.control.dvalues);
468 for (i = 0; i < se->items; i++)
469 kfree(se->dobj.control.dtexts[i]);
470 kfree(se);
471}
472
473/* remove a byte kcontrol */
474static void remove_bytes(struct snd_soc_component *comp,
475 struct snd_soc_dobj *dobj, int pass)
476{
477 struct snd_card *card = comp->card->snd_card;
478 struct soc_bytes_ext *sb =
479 container_of(dobj, struct soc_bytes_ext, dobj);
480
481 if (pass != SOC_TPLG_PASS_MIXER)
482 return;
483
484 if (dobj->ops && dobj->ops->control_unload)
485 dobj->ops->control_unload(comp, dobj);
486
487 snd_ctl_remove(card, sb->dobj.control.kcontrol);
488 list_del(&sb->dobj.list);
489 kfree(sb);
490}
491
492/* remove a widget and it's kcontrols - routes must be removed first */
493static void remove_widget(struct snd_soc_component *comp,
494 struct snd_soc_dobj *dobj, int pass)
495{
496 struct snd_card *card = comp->card->snd_card;
497 struct snd_soc_dapm_widget *w =
498 container_of(dobj, struct snd_soc_dapm_widget, dobj);
499 int i;
500
501 if (pass != SOC_TPLG_PASS_WIDGET)
502 return;
503
504 if (dobj->ops && dobj->ops->widget_unload)
505 dobj->ops->widget_unload(comp, dobj);
506
507 if (!w->kcontrols)
508 goto free_news;
509
510 /*
511 * Dynamic Widgets either have 1..N enum kcontrols or mixers.
512 * The enum may either have an array of values or strings.
513 */
514 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
515 /* enumerated widget mixer */
516 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
517 struct snd_kcontrol *kcontrol = w->kcontrols[i];
518 struct soc_enum *se =
519 (struct soc_enum *)kcontrol->private_value;
520 int j;
521
522 snd_ctl_remove(card, kcontrol);
523
524 kfree(se->dobj.control.dvalues);
525 for (j = 0; j < se->items; j++)
526 kfree(se->dobj.control.dtexts[j]);
527
528 kfree(se);
529 kfree(w->kcontrol_news[i].name);
530 }
531 } else {
532 /* volume mixer or bytes controls */
533 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
534 struct snd_kcontrol *kcontrol = w->kcontrols[i];
535
536 if (dobj->widget.kcontrol_type
537 == SND_SOC_TPLG_TYPE_MIXER)
538 kfree(kcontrol->tlv.p);
539
540 /* Private value is used as struct soc_mixer_control
541 * for volume mixers or soc_bytes_ext for bytes
542 * controls.
543 */
544 kfree((void *)kcontrol->private_value);
545 snd_ctl_remove(card, kcontrol);
546 kfree(w->kcontrol_news[i].name);
547 }
548 }
549
550free_news:
551 kfree(w->kcontrol_news);
552
553 /* widget w is freed by soc-dapm.c */
554}
555
556/* remove DAI configurations */
557static void remove_dai(struct snd_soc_component *comp,
558 struct snd_soc_dobj *dobj, int pass)
559{
560 struct snd_soc_dai_driver *dai_drv =
561 container_of(dobj, struct snd_soc_dai_driver, dobj);
562
563 if (pass != SOC_TPLG_PASS_PCM_DAI)
564 return;
565
566 if (dobj->ops && dobj->ops->dai_unload)
567 dobj->ops->dai_unload(comp, dobj);
568
569 kfree(dai_drv->name);
570 list_del(&dobj->list);
571 kfree(dai_drv);
572}
573
574/* remove link configurations */
575static void remove_link(struct snd_soc_component *comp,
576 struct snd_soc_dobj *dobj, int pass)
577{
578 struct snd_soc_dai_link *link =
579 container_of(dobj, struct snd_soc_dai_link, dobj);
580
581 if (pass != SOC_TPLG_PASS_PCM_DAI)
582 return;
583
584 if (dobj->ops && dobj->ops->link_unload)
585 dobj->ops->link_unload(comp, dobj);
586
587 kfree(link->name);
588 kfree(link->stream_name);
589 kfree(link->cpu_dai_name);
590
591 list_del(&dobj->list);
592 snd_soc_remove_dai_link(comp->card, link);
593 kfree(link);
594}
595
596/* bind a kcontrol to it's IO handlers */
597static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
598 struct snd_kcontrol_new *k,
599 const struct soc_tplg *tplg)
600{
601 const struct snd_soc_tplg_kcontrol_ops *ops;
602 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
603 int num_ops, i;
604
605 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
606 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
607 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
608 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
609 struct soc_bytes_ext *sbe;
610 struct snd_soc_tplg_bytes_control *be;
611
612 sbe = (struct soc_bytes_ext *)k->private_value;
613 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
614
615 /* TLV bytes controls need standard kcontrol info handler,
616 * TLV callback and extended put/get handlers.
617 */
618 k->info = snd_soc_bytes_info_ext;
619 k->tlv.c = snd_soc_bytes_tlv_callback;
620
621 ext_ops = tplg->bytes_ext_ops;
622 num_ops = tplg->bytes_ext_ops_count;
623 for (i = 0; i < num_ops; i++) {
624 if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
625 sbe->put = ext_ops[i].put;
626 if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
627 sbe->get = ext_ops[i].get;
628 }
629
630 if (sbe->put && sbe->get)
631 return 0;
632 else
633 return -EINVAL;
634 }
635
636 /* try and map vendor specific kcontrol handlers first */
637 ops = tplg->io_ops;
638 num_ops = tplg->io_ops_count;
639 for (i = 0; i < num_ops; i++) {
640
641 if (k->put == NULL && ops[i].id == hdr->ops.put)
642 k->put = ops[i].put;
643 if (k->get == NULL && ops[i].id == hdr->ops.get)
644 k->get = ops[i].get;
645 if (k->info == NULL && ops[i].id == hdr->ops.info)
646 k->info = ops[i].info;
647 }
648
649 /* vendor specific handlers found ? */
650 if (k->put && k->get && k->info)
651 return 0;
652
653 /* none found so try standard kcontrol handlers */
654 ops = io_ops;
655 num_ops = ARRAY_SIZE(io_ops);
656 for (i = 0; i < num_ops; i++) {
657
658 if (k->put == NULL && ops[i].id == hdr->ops.put)
659 k->put = ops[i].put;
660 if (k->get == NULL && ops[i].id == hdr->ops.get)
661 k->get = ops[i].get;
662 if (k->info == NULL && ops[i].id == hdr->ops.info)
663 k->info = ops[i].info;
664 }
665
666 /* standard handlers found ? */
667 if (k->put && k->get && k->info)
668 return 0;
669
670 /* nothing to bind */
671 return -EINVAL;
672}
673
674/* bind a widgets to it's evnt handlers */
675int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
676 const struct snd_soc_tplg_widget_events *events,
677 int num_events, u16 event_type)
678{
679 int i;
680
681 w->event = NULL;
682
683 for (i = 0; i < num_events; i++) {
684 if (event_type == events[i].type) {
685
686 /* found - so assign event */
687 w->event = events[i].event_handler;
688 return 0;
689 }
690 }
691
692 /* not found */
693 return -EINVAL;
694}
695EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
696
697/* optionally pass new dynamic kcontrol to component driver. */
698static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
699 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
700{
701 if (tplg->comp && tplg->ops && tplg->ops->control_load)
702 return tplg->ops->control_load(tplg->comp, k, hdr);
703
704 return 0;
705}
706
707
708static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
709 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
710{
711 unsigned int item_len = 2 * sizeof(unsigned int);
712 unsigned int *p;
713
714 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
715 if (!p)
716 return -ENOMEM;
717
718 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
719 p[1] = item_len;
720 p[2] = scale->min;
721 p[3] = (scale->step & TLV_DB_SCALE_MASK)
722 | (scale->mute ? TLV_DB_SCALE_MUTE : 0);
723
724 kc->tlv.p = (void *)p;
725 return 0;
726}
727
728static int soc_tplg_create_tlv(struct soc_tplg *tplg,
729 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
730{
731 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
732
733 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
734 return 0;
735
736 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
737 tplg_tlv = &tc->tlv;
738 switch (tplg_tlv->type) {
739 case SNDRV_CTL_TLVT_DB_SCALE:
740 return soc_tplg_create_tlv_db_scale(tplg, kc,
741 &tplg_tlv->scale);
742
743 /* TODO: add support for other TLV types */
744 default:
745 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
746 tplg_tlv->type);
747 return -EINVAL;
748 }
749 }
750
751 return 0;
752}
753
754static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
755 struct snd_kcontrol_new *kc)
756{
757 kfree(kc->tlv.p);
758}
759
760static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
761 size_t size)
762{
763 struct snd_soc_tplg_bytes_control *be;
764 struct soc_bytes_ext *sbe;
765 struct snd_kcontrol_new kc;
766 int i, err;
767
768 if (soc_tplg_check_elem_count(tplg,
769 sizeof(struct snd_soc_tplg_bytes_control), count,
770 size, "mixer bytes")) {
771 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
772 count);
773 return -EINVAL;
774 }
775
776 for (i = 0; i < count; i++) {
777 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
778
779 /* validate kcontrol */
780 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
781 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
782 return -EINVAL;
783
784 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
785 if (sbe == NULL)
786 return -ENOMEM;
787
788 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
789 be->priv.size);
790
791 dev_dbg(tplg->dev,
792 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
793 be->hdr.name, be->hdr.access);
794
795 memset(&kc, 0, sizeof(kc));
796 kc.name = be->hdr.name;
797 kc.private_value = (long)sbe;
798 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
799 kc.access = be->hdr.access;
800
801 sbe->max = be->max;
802 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
803 sbe->dobj.ops = tplg->ops;
804 INIT_LIST_HEAD(&sbe->dobj.list);
805
806 /* map io handlers */
807 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
808 if (err) {
809 soc_control_err(tplg, &be->hdr, be->hdr.name);
810 kfree(sbe);
811 continue;
812 }
813
814 /* pass control to driver for optional further init */
815 err = soc_tplg_init_kcontrol(tplg, &kc,
816 (struct snd_soc_tplg_ctl_hdr *)be);
817 if (err < 0) {
818 dev_err(tplg->dev, "ASoC: failed to init %s\n",
819 be->hdr.name);
820 kfree(sbe);
821 continue;
822 }
823
824 /* register control here */
825 err = soc_tplg_add_kcontrol(tplg, &kc,
826 &sbe->dobj.control.kcontrol);
827 if (err < 0) {
828 dev_err(tplg->dev, "ASoC: failed to add %s\n",
829 be->hdr.name);
830 kfree(sbe);
831 continue;
832 }
833
834 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
835 }
836 return 0;
837
838}
839
840static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
841 size_t size)
842{
843 struct snd_soc_tplg_mixer_control *mc;
844 struct soc_mixer_control *sm;
845 struct snd_kcontrol_new kc;
846 int i, err;
847
848 if (soc_tplg_check_elem_count(tplg,
849 sizeof(struct snd_soc_tplg_mixer_control),
850 count, size, "mixers")) {
851
852 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
853 count);
854 return -EINVAL;
855 }
856
857 for (i = 0; i < count; i++) {
858 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
859
860 /* validate kcontrol */
861 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
862 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
863 return -EINVAL;
864
865 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
866 if (sm == NULL)
867 return -ENOMEM;
868 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
869 mc->priv.size);
870
871 dev_dbg(tplg->dev,
872 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
873 mc->hdr.name, mc->hdr.access);
874
875 memset(&kc, 0, sizeof(kc));
876 kc.name = mc->hdr.name;
877 kc.private_value = (long)sm;
878 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
879 kc.access = mc->hdr.access;
880
881 /* we only support FL/FR channel mapping atm */
882 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
883 SNDRV_CHMAP_FL);
884 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
885 SNDRV_CHMAP_FR);
886 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
887 SNDRV_CHMAP_FL);
888 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
889 SNDRV_CHMAP_FR);
890
891 sm->max = mc->max;
892 sm->min = mc->min;
893 sm->invert = mc->invert;
894 sm->platform_max = mc->platform_max;
895 sm->dobj.index = tplg->index;
896 sm->dobj.ops = tplg->ops;
897 sm->dobj.type = SND_SOC_DOBJ_MIXER;
898 INIT_LIST_HEAD(&sm->dobj.list);
899
900 /* map io handlers */
901 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
902 if (err) {
903 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
904 kfree(sm);
905 continue;
906 }
907
908 /* pass control to driver for optional further init */
909 err = soc_tplg_init_kcontrol(tplg, &kc,
910 (struct snd_soc_tplg_ctl_hdr *) mc);
911 if (err < 0) {
912 dev_err(tplg->dev, "ASoC: failed to init %s\n",
913 mc->hdr.name);
914 kfree(sm);
915 continue;
916 }
917
918 /* create any TLV data */
919 soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
920
921 /* register control here */
922 err = soc_tplg_add_kcontrol(tplg, &kc,
923 &sm->dobj.control.kcontrol);
924 if (err < 0) {
925 dev_err(tplg->dev, "ASoC: failed to add %s\n",
926 mc->hdr.name);
927 soc_tplg_free_tlv(tplg, &kc);
928 kfree(sm);
929 continue;
930 }
931
932 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
933 }
934
935 return 0;
936}
937
938static int soc_tplg_denum_create_texts(struct soc_enum *se,
939 struct snd_soc_tplg_enum_control *ec)
940{
941 int i, ret;
942
943 se->dobj.control.dtexts =
944 kzalloc(sizeof(char *) * ec->items, GFP_KERNEL);
945 if (se->dobj.control.dtexts == NULL)
946 return -ENOMEM;
947
948 for (i = 0; i < ec->items; i++) {
949
950 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
951 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
952 ret = -EINVAL;
953 goto err;
954 }
955
956 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
957 if (!se->dobj.control.dtexts[i]) {
958 ret = -ENOMEM;
959 goto err;
960 }
961 }
962
963 se->texts = (const char * const *)se->dobj.control.dtexts;
964 return 0;
965
966err:
967 for (--i; i >= 0; i--)
968 kfree(se->dobj.control.dtexts[i]);
969 kfree(se->dobj.control.dtexts);
970 return ret;
971}
972
973static int soc_tplg_denum_create_values(struct soc_enum *se,
974 struct snd_soc_tplg_enum_control *ec)
975{
976 if (ec->items > sizeof(*ec->values))
977 return -EINVAL;
978
979 se->dobj.control.dvalues = kmemdup(ec->values,
980 ec->items * sizeof(u32),
981 GFP_KERNEL);
982 if (!se->dobj.control.dvalues)
983 return -ENOMEM;
984
985 return 0;
986}
987
988static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
989 size_t size)
990{
991 struct snd_soc_tplg_enum_control *ec;
992 struct soc_enum *se;
993 struct snd_kcontrol_new kc;
994 int i, ret, err;
995
996 if (soc_tplg_check_elem_count(tplg,
997 sizeof(struct snd_soc_tplg_enum_control),
998 count, size, "enums")) {
999
1000 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1001 count);
1002 return -EINVAL;
1003 }
1004
1005 for (i = 0; i < count; i++) {
1006 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1007 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1008 ec->priv.size);
1009
1010 /* validate kcontrol */
1011 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1012 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1013 return -EINVAL;
1014
1015 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1016 if (se == NULL)
1017 return -ENOMEM;
1018
1019 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1020 ec->hdr.name, ec->items);
1021
1022 memset(&kc, 0, sizeof(kc));
1023 kc.name = ec->hdr.name;
1024 kc.private_value = (long)se;
1025 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1026 kc.access = ec->hdr.access;
1027
1028 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1029 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1030 SNDRV_CHMAP_FL);
1031 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1032 SNDRV_CHMAP_FL);
1033
1034 se->items = ec->items;
1035 se->mask = ec->mask;
1036 se->dobj.index = tplg->index;
1037 se->dobj.type = SND_SOC_DOBJ_ENUM;
1038 se->dobj.ops = tplg->ops;
1039 INIT_LIST_HEAD(&se->dobj.list);
1040
1041 switch (ec->hdr.ops.info) {
1042 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1043 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1044 err = soc_tplg_denum_create_values(se, ec);
1045 if (err < 0) {
1046 dev_err(tplg->dev,
1047 "ASoC: could not create values for %s\n",
1048 ec->hdr.name);
1049 kfree(se);
1050 continue;
1051 }
1052 /* fall through and create texts */
1053 case SND_SOC_TPLG_CTL_ENUM:
1054 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1055 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1056 err = soc_tplg_denum_create_texts(se, ec);
1057 if (err < 0) {
1058 dev_err(tplg->dev,
1059 "ASoC: could not create texts for %s\n",
1060 ec->hdr.name);
1061 kfree(se);
1062 continue;
1063 }
1064 break;
1065 default:
1066 dev_err(tplg->dev,
1067 "ASoC: invalid enum control type %d for %s\n",
1068 ec->hdr.ops.info, ec->hdr.name);
1069 kfree(se);
1070 continue;
1071 }
1072
1073 /* map io handlers */
1074 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1075 if (err) {
1076 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1077 kfree(se);
1078 continue;
1079 }
1080
1081 /* pass control to driver for optional further init */
1082 err = soc_tplg_init_kcontrol(tplg, &kc,
1083 (struct snd_soc_tplg_ctl_hdr *) ec);
1084 if (err < 0) {
1085 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1086 ec->hdr.name);
1087 kfree(se);
1088 continue;
1089 }
1090
1091 /* register control here */
1092 ret = soc_tplg_add_kcontrol(tplg,
1093 &kc, &se->dobj.control.kcontrol);
1094 if (ret < 0) {
1095 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1096 ec->hdr.name);
1097 kfree(se);
1098 continue;
1099 }
1100
1101 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1102 }
1103
1104 return 0;
1105}
1106
1107static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1108 struct snd_soc_tplg_hdr *hdr)
1109{
1110 struct snd_soc_tplg_ctl_hdr *control_hdr;
1111 int i;
1112
1113 if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1114 tplg->pos += hdr->size + hdr->payload_size;
1115 return 0;
1116 }
1117
1118 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1119 soc_tplg_get_offset(tplg));
1120
1121 for (i = 0; i < hdr->count; i++) {
1122
1123 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1124
1125 if (control_hdr->size != sizeof(*control_hdr)) {
1126 dev_err(tplg->dev, "ASoC: invalid control size\n");
1127 return -EINVAL;
1128 }
1129
1130 switch (control_hdr->ops.info) {
1131 case SND_SOC_TPLG_CTL_VOLSW:
1132 case SND_SOC_TPLG_CTL_STROBE:
1133 case SND_SOC_TPLG_CTL_VOLSW_SX:
1134 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1135 case SND_SOC_TPLG_CTL_RANGE:
1136 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1137 case SND_SOC_TPLG_DAPM_CTL_PIN:
1138 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size);
1139 break;
1140 case SND_SOC_TPLG_CTL_ENUM:
1141 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1142 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1143 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1144 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1145 soc_tplg_denum_create(tplg, 1, hdr->payload_size);
1146 break;
1147 case SND_SOC_TPLG_CTL_BYTES:
1148 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size);
1149 break;
1150 default:
1151 soc_bind_err(tplg, control_hdr, i);
1152 return -EINVAL;
1153 }
1154 }
1155
1156 return 0;
1157}
1158
1159static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1160 struct snd_soc_tplg_hdr *hdr)
1161{
1162 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1163 struct snd_soc_dapm_route route;
1164 struct snd_soc_tplg_dapm_graph_elem *elem;
1165 int count = hdr->count, i;
1166
1167 if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1168 tplg->pos += hdr->size + hdr->payload_size;
1169 return 0;
1170 }
1171
1172 if (soc_tplg_check_elem_count(tplg,
1173 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1174 count, hdr->payload_size, "graph")) {
1175
1176 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1177 count);
1178 return -EINVAL;
1179 }
1180
1181 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1182 hdr->index);
1183
1184 for (i = 0; i < count; i++) {
1185 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1186 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1187
1188 /* validate routes */
1189 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1190 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1191 return -EINVAL;
1192 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1193 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1194 return -EINVAL;
1195 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1196 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1197 return -EINVAL;
1198
1199 route.source = elem->source;
1200 route.sink = elem->sink;
1201 route.connected = NULL; /* set to NULL atm for tplg users */
1202 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1203 route.control = NULL;
1204 else
1205 route.control = elem->control;
1206
1207 /* add route, but keep going if some fail */
1208 snd_soc_dapm_add_routes(dapm, &route, 1);
1209 }
1210
1211 return 0;
1212}
1213
1214static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1215 struct soc_tplg *tplg, int num_kcontrols)
1216{
1217 struct snd_kcontrol_new *kc;
1218 struct soc_mixer_control *sm;
1219 struct snd_soc_tplg_mixer_control *mc;
1220 int i, err;
1221
1222 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1223 if (kc == NULL)
1224 return NULL;
1225
1226 for (i = 0; i < num_kcontrols; i++) {
1227 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1228 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1229 if (sm == NULL)
1230 goto err;
1231
1232 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1233 mc->priv.size);
1234
1235 /* validate kcontrol */
1236 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1237 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1238 goto err_str;
1239
1240 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1241 mc->hdr.name, i);
1242
1243 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1244 if (kc[i].name == NULL)
1245 goto err_str;
1246 kc[i].private_value = (long)sm;
1247 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1248 kc[i].access = mc->hdr.access;
1249
1250 /* we only support FL/FR channel mapping atm */
1251 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1252 SNDRV_CHMAP_FL);
1253 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1254 SNDRV_CHMAP_FR);
1255 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1256 SNDRV_CHMAP_FL);
1257 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1258 SNDRV_CHMAP_FR);
1259
1260 sm->max = mc->max;
1261 sm->min = mc->min;
1262 sm->invert = mc->invert;
1263 sm->platform_max = mc->platform_max;
1264 sm->dobj.index = tplg->index;
1265 INIT_LIST_HEAD(&sm->dobj.list);
1266
1267 /* map io handlers */
1268 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1269 if (err) {
1270 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1271 kfree(sm);
1272 continue;
1273 }
1274
1275 /* pass control to driver for optional further init */
1276 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1277 (struct snd_soc_tplg_ctl_hdr *)mc);
1278 if (err < 0) {
1279 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1280 mc->hdr.name);
1281 kfree(sm);
1282 continue;
1283 }
1284
1285 /* create any TLV data */
1286 soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1287 }
1288 return kc;
1289
1290err_str:
1291 kfree(sm);
1292err:
1293 for (--i; i >= 0; i--) {
1294 kfree((void *)kc[i].private_value);
1295 kfree(kc[i].name);
1296 }
1297 kfree(kc);
1298 return NULL;
1299}
1300
1301static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1302 struct soc_tplg *tplg, int num_kcontrols)
1303{
1304 struct snd_kcontrol_new *kc;
1305 struct snd_soc_tplg_enum_control *ec;
1306 struct soc_enum *se;
1307 int i, j, err;
1308
1309 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1310 if (kc == NULL)
1311 return NULL;
1312
1313 for (i = 0; i < num_kcontrols; i++) {
1314 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1315 /* validate kcontrol */
1316 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1317 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1318 goto err;
1319
1320 se = kzalloc(sizeof(*se), GFP_KERNEL);
1321 if (se == NULL)
1322 goto err;
1323
1324 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1325 ec->hdr.name);
1326
1327 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1328 if (kc[i].name == NULL) {
1329 kfree(se);
1330 goto err_se;
1331 }
1332 kc[i].private_value = (long)se;
1333 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1334 kc[i].access = ec->hdr.access;
1335
1336 /* we only support FL/FR channel mapping atm */
1337 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1338 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1339 SNDRV_CHMAP_FL);
1340 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1341 SNDRV_CHMAP_FR);
1342
1343 se->items = ec->items;
1344 se->mask = ec->mask;
1345 se->dobj.index = tplg->index;
1346
1347 switch (ec->hdr.ops.info) {
1348 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1349 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1350 err = soc_tplg_denum_create_values(se, ec);
1351 if (err < 0) {
1352 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1353 ec->hdr.name);
1354 goto err_se;
1355 }
1356 /* fall through to create texts */
1357 case SND_SOC_TPLG_CTL_ENUM:
1358 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1359 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1360 err = soc_tplg_denum_create_texts(se, ec);
1361 if (err < 0) {
1362 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1363 ec->hdr.name);
1364 goto err_se;
1365 }
1366 break;
1367 default:
1368 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1369 ec->hdr.ops.info, ec->hdr.name);
1370 goto err_se;
1371 }
1372
1373 /* map io handlers */
1374 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1375 if (err) {
1376 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1377 goto err_se;
1378 }
1379
1380 /* pass control to driver for optional further init */
1381 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1382 (struct snd_soc_tplg_ctl_hdr *)ec);
1383 if (err < 0) {
1384 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1385 ec->hdr.name);
1386 goto err_se;
1387 }
1388
1389 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1390 ec->priv.size);
1391 }
1392
1393 return kc;
1394
1395err_se:
1396 for (; i >= 0; i--) {
1397 /* free values and texts */
1398 se = (struct soc_enum *)kc[i].private_value;
1399 if (!se)
1400 continue;
1401
1402 kfree(se->dobj.control.dvalues);
1403 for (j = 0; j < ec->items; j++)
1404 kfree(se->dobj.control.dtexts[j]);
1405
1406 kfree(se);
1407 kfree(kc[i].name);
1408 }
1409err:
1410 kfree(kc);
1411
1412 return NULL;
1413}
1414
1415static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1416 struct soc_tplg *tplg, int count)
1417{
1418 struct snd_soc_tplg_bytes_control *be;
1419 struct soc_bytes_ext *sbe;
1420 struct snd_kcontrol_new *kc;
1421 int i, err;
1422
1423 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL);
1424 if (!kc)
1425 return NULL;
1426
1427 for (i = 0; i < count; i++) {
1428 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1429
1430 /* validate kcontrol */
1431 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1432 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1433 goto err;
1434
1435 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1436 if (sbe == NULL)
1437 goto err;
1438
1439 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1440 be->priv.size);
1441
1442 dev_dbg(tplg->dev,
1443 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1444 be->hdr.name, be->hdr.access);
1445
1446 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1447 if (kc[i].name == NULL) {
1448 kfree(sbe);
1449 goto err;
1450 }
1451 kc[i].private_value = (long)sbe;
1452 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1453 kc[i].access = be->hdr.access;
1454
1455 sbe->max = be->max;
1456 INIT_LIST_HEAD(&sbe->dobj.list);
1457
1458 /* map standard io handlers and check for external handlers */
1459 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1460 if (err) {
1461 soc_control_err(tplg, &be->hdr, be->hdr.name);
1462 kfree(sbe);
1463 continue;
1464 }
1465
1466 /* pass control to driver for optional further init */
1467 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1468 (struct snd_soc_tplg_ctl_hdr *)be);
1469 if (err < 0) {
1470 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1471 be->hdr.name);
1472 kfree(sbe);
1473 continue;
1474 }
1475 }
1476
1477 return kc;
1478
1479err:
1480 for (--i; i >= 0; i--) {
1481 kfree((void *)kc[i].private_value);
1482 kfree(kc[i].name);
1483 }
1484
1485 kfree(kc);
1486 return NULL;
1487}
1488
1489static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1490 struct snd_soc_tplg_dapm_widget *w)
1491{
1492 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1493 struct snd_soc_dapm_widget template, *widget;
1494 struct snd_soc_tplg_ctl_hdr *control_hdr;
1495 struct snd_soc_card *card = tplg->comp->card;
1496 unsigned int kcontrol_type;
1497 int ret = 0;
1498
1499 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1500 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1501 return -EINVAL;
1502 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1503 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1504 return -EINVAL;
1505
1506 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1507 w->name, w->id);
1508
1509 memset(&template, 0, sizeof(template));
1510
1511 /* map user to kernel widget ID */
1512 template.id = get_widget_id(w->id);
1513 if (template.id < 0)
1514 return template.id;
1515
1516 /* strings are allocated here, but used and freed by the widget */
1517 template.name = kstrdup(w->name, GFP_KERNEL);
1518 if (!template.name)
1519 return -ENOMEM;
1520 template.sname = kstrdup(w->sname, GFP_KERNEL);
1521 if (!template.sname) {
1522 ret = -ENOMEM;
1523 goto err;
1524 }
1525 template.reg = w->reg;
1526 template.shift = w->shift;
1527 template.mask = w->mask;
1528 template.subseq = w->subseq;
1529 template.on_val = w->invert ? 0 : 1;
1530 template.off_val = w->invert ? 1 : 0;
1531 template.ignore_suspend = w->ignore_suspend;
1532 template.event_flags = w->event_flags;
1533 template.dobj.index = tplg->index;
1534
1535 tplg->pos +=
1536 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size);
1537 if (w->num_kcontrols == 0) {
1538 kcontrol_type = 0;
1539 template.num_kcontrols = 0;
1540 goto widget;
1541 }
1542
1543 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1544 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1545 w->name, w->num_kcontrols, control_hdr->type);
1546
1547 switch (control_hdr->ops.info) {
1548 case SND_SOC_TPLG_CTL_VOLSW:
1549 case SND_SOC_TPLG_CTL_STROBE:
1550 case SND_SOC_TPLG_CTL_VOLSW_SX:
1551 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1552 case SND_SOC_TPLG_CTL_RANGE:
1553 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1554 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1555 template.num_kcontrols = w->num_kcontrols;
1556 template.kcontrol_news =
1557 soc_tplg_dapm_widget_dmixer_create(tplg,
1558 template.num_kcontrols);
1559 if (!template.kcontrol_news) {
1560 ret = -ENOMEM;
1561 goto hdr_err;
1562 }
1563 break;
1564 case SND_SOC_TPLG_CTL_ENUM:
1565 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1566 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1567 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1568 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1569 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1570 template.num_kcontrols = w->num_kcontrols;
1571 template.kcontrol_news =
1572 soc_tplg_dapm_widget_denum_create(tplg,
1573 template.num_kcontrols);
1574 if (!template.kcontrol_news) {
1575 ret = -ENOMEM;
1576 goto hdr_err;
1577 }
1578 break;
1579 case SND_SOC_TPLG_CTL_BYTES:
1580 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1581 template.num_kcontrols = w->num_kcontrols;
1582 template.kcontrol_news =
1583 soc_tplg_dapm_widget_dbytes_create(tplg,
1584 template.num_kcontrols);
1585 if (!template.kcontrol_news) {
1586 ret = -ENOMEM;
1587 goto hdr_err;
1588 }
1589 break;
1590 default:
1591 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1592 control_hdr->ops.get, control_hdr->ops.put,
1593 control_hdr->ops.info);
1594 ret = -EINVAL;
1595 goto hdr_err;
1596 }
1597
1598widget:
1599 ret = soc_tplg_widget_load(tplg, &template, w);
1600 if (ret < 0)
1601 goto hdr_err;
1602
1603 /* card dapm mutex is held by the core if we are loading topology
1604 * data during sound card init. */
1605 if (card->instantiated)
1606 widget = snd_soc_dapm_new_control(dapm, &template);
1607 else
1608 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1609 if (IS_ERR(widget)) {
1610 ret = PTR_ERR(widget);
1611 /* Do not nag about probe deferrals */
1612 if (ret != -EPROBE_DEFER)
1613 dev_err(tplg->dev,
1614 "ASoC: failed to create widget %s controls (%d)\n",
1615 w->name, ret);
1616 goto hdr_err;
1617 }
1618 if (widget == NULL) {
1619 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n",
1620 w->name);
1621 ret = -ENOMEM;
1622 goto hdr_err;
1623 }
1624
1625 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1626 widget->dobj.widget.kcontrol_type = kcontrol_type;
1627 widget->dobj.ops = tplg->ops;
1628 widget->dobj.index = tplg->index;
1629 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1630
1631 ret = soc_tplg_widget_ready(tplg, widget, w);
1632 if (ret < 0)
1633 goto ready_err;
1634
1635 return 0;
1636
1637ready_err:
1638 snd_soc_tplg_widget_remove(widget);
1639 snd_soc_dapm_free_widget(widget);
1640hdr_err:
1641 kfree(template.sname);
1642err:
1643 kfree(template.name);
1644 return ret;
1645}
1646
1647static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1648 struct snd_soc_tplg_hdr *hdr)
1649{
1650 struct snd_soc_tplg_dapm_widget *widget;
1651 int ret, count = hdr->count, i;
1652
1653 if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1654 return 0;
1655
1656 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1657
1658 for (i = 0; i < count; i++) {
1659 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1660 if (widget->size != sizeof(*widget)) {
1661 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1662 return -EINVAL;
1663 }
1664
1665 ret = soc_tplg_dapm_widget_create(tplg, widget);
1666 if (ret < 0) {
1667 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1668 widget->name);
1669 return ret;
1670 }
1671 }
1672
1673 return 0;
1674}
1675
1676static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1677{
1678 struct snd_soc_card *card = tplg->comp->card;
1679 int ret;
1680
1681 /* Card might not have been registered at this point.
1682 * If so, just return success.
1683 */
1684 if (!card || !card->instantiated) {
1685 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1686 " widget card binding deferred\n");
1687 return 0;
1688 }
1689
1690 ret = snd_soc_dapm_new_widgets(card);
1691 if (ret < 0)
1692 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1693 ret);
1694
1695 return 0;
1696}
1697
1698static void set_stream_info(struct snd_soc_pcm_stream *stream,
1699 struct snd_soc_tplg_stream_caps *caps)
1700{
1701 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1702 stream->channels_min = caps->channels_min;
1703 stream->channels_max = caps->channels_max;
1704 stream->rates = caps->rates;
1705 stream->rate_min = caps->rate_min;
1706 stream->rate_max = caps->rate_max;
1707 stream->formats = caps->formats;
1708 stream->sig_bits = caps->sig_bits;
1709}
1710
1711static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1712 unsigned int flag_mask, unsigned int flags)
1713{
1714 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1715 dai_drv->symmetric_rates =
1716 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1717
1718 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1719 dai_drv->symmetric_channels =
1720 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1721 1 : 0;
1722
1723 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1724 dai_drv->symmetric_samplebits =
1725 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1726 1 : 0;
1727}
1728
1729static int soc_tplg_dai_create(struct soc_tplg *tplg,
1730 struct snd_soc_tplg_pcm *pcm)
1731{
1732 struct snd_soc_dai_driver *dai_drv;
1733 struct snd_soc_pcm_stream *stream;
1734 struct snd_soc_tplg_stream_caps *caps;
1735 int ret;
1736
1737 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1738 if (dai_drv == NULL)
1739 return -ENOMEM;
1740
1741 if (strlen(pcm->dai_name))
1742 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1743 dai_drv->id = pcm->dai_id;
1744
1745 if (pcm->playback) {
1746 stream = &dai_drv->playback;
1747 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1748 set_stream_info(stream, caps);
1749 }
1750
1751 if (pcm->capture) {
1752 stream = &dai_drv->capture;
1753 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1754 set_stream_info(stream, caps);
1755 }
1756
1757 /* pass control to component driver for optional further init */
1758 ret = soc_tplg_dai_load(tplg, dai_drv);
1759 if (ret < 0) {
1760 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1761 kfree(dai_drv);
1762 return ret;
1763 }
1764
1765 dai_drv->dobj.index = tplg->index;
1766 dai_drv->dobj.ops = tplg->ops;
1767 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1768 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1769
1770 /* register the DAI to the component */
1771 return snd_soc_register_dai(tplg->comp, dai_drv);
1772}
1773
1774static void set_link_flags(struct snd_soc_dai_link *link,
1775 unsigned int flag_mask, unsigned int flags)
1776{
1777 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1778 link->symmetric_rates =
1779 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1780
1781 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1782 link->symmetric_channels =
1783 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1784 1 : 0;
1785
1786 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1787 link->symmetric_samplebits =
1788 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1789 1 : 0;
1790
1791 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1792 link->ignore_suspend =
1793 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1794 1 : 0;
1795}
1796
1797/* create the FE DAI link */
1798static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1799 struct snd_soc_tplg_pcm *pcm)
1800{
1801 struct snd_soc_dai_link *link;
1802 int ret;
1803
1804 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL);
1805 if (link == NULL)
1806 return -ENOMEM;
1807
1808 if (strlen(pcm->pcm_name)) {
1809 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1810 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1811 }
1812 link->id = pcm->pcm_id;
1813
1814 if (strlen(pcm->dai_name))
1815 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1816
1817 link->codec_name = "snd-soc-dummy";
1818 link->codec_dai_name = "snd-soc-dummy-dai";
1819
1820 /* enable DPCM */
1821 link->dynamic = 1;
1822 link->dpcm_playback = pcm->playback;
1823 link->dpcm_capture = pcm->capture;
1824 if (pcm->flag_mask)
1825 set_link_flags(link, pcm->flag_mask, pcm->flags);
1826
1827 /* pass control to component driver for optional further init */
1828 ret = soc_tplg_dai_link_load(tplg, link);
1829 if (ret < 0) {
1830 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1831 kfree(link);
1832 return ret;
1833 }
1834
1835 link->dobj.index = tplg->index;
1836 link->dobj.ops = tplg->ops;
1837 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1838 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1839
1840 snd_soc_add_dai_link(tplg->comp->card, link);
1841 return 0;
1842}
1843
1844/* create a FE DAI and DAI link from the PCM object */
1845static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1846 struct snd_soc_tplg_pcm *pcm)
1847{
1848 int ret;
1849
1850 ret = soc_tplg_dai_create(tplg, pcm);
1851 if (ret < 0)
1852 return ret;
1853
1854 return soc_tplg_fe_link_create(tplg, pcm);
1855}
1856
1857/* copy stream caps from the old version 4 of source */
1858static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1859 struct snd_soc_tplg_stream_caps_v4 *src)
1860{
1861 dest->size = sizeof(*dest);
1862 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1863 dest->formats = src->formats;
1864 dest->rates = src->rates;
1865 dest->rate_min = src->rate_min;
1866 dest->rate_max = src->rate_max;
1867 dest->channels_min = src->channels_min;
1868 dest->channels_max = src->channels_max;
1869 dest->periods_min = src->periods_min;
1870 dest->periods_max = src->periods_max;
1871 dest->period_size_min = src->period_size_min;
1872 dest->period_size_max = src->period_size_max;
1873 dest->buffer_size_min = src->buffer_size_min;
1874 dest->buffer_size_max = src->buffer_size_max;
1875}
1876
1877/**
1878 * pcm_new_ver - Create the new version of PCM from the old version.
1879 * @tplg: topology context
1880 * @src: older version of pcm as a source
1881 * @pcm: latest version of pcm created from the source
1882 *
1883 * Support from vesion 4. User should free the returned pcm manually.
1884 */
1885static int pcm_new_ver(struct soc_tplg *tplg,
1886 struct snd_soc_tplg_pcm *src,
1887 struct snd_soc_tplg_pcm **pcm)
1888{
1889 struct snd_soc_tplg_pcm *dest;
1890 struct snd_soc_tplg_pcm_v4 *src_v4;
1891 int i;
1892
1893 *pcm = NULL;
1894
1895 if (src->size != sizeof(*src_v4)) {
1896 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1897 return -EINVAL;
1898 }
1899
1900 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1901 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1902 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1903 if (!dest)
1904 return -ENOMEM;
1905
1906 dest->size = sizeof(*dest); /* size of latest abi version */
1907 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1908 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1909 dest->pcm_id = src_v4->pcm_id;
1910 dest->dai_id = src_v4->dai_id;
1911 dest->playback = src_v4->playback;
1912 dest->capture = src_v4->capture;
1913 dest->compress = src_v4->compress;
1914 dest->num_streams = src_v4->num_streams;
1915 for (i = 0; i < dest->num_streams; i++)
1916 memcpy(&dest->stream[i], &src_v4->stream[i],
1917 sizeof(struct snd_soc_tplg_stream));
1918
1919 for (i = 0; i < 2; i++)
1920 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
1921
1922 *pcm = dest;
1923 return 0;
1924}
1925
1926static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1927 struct snd_soc_tplg_hdr *hdr)
1928{
1929 struct snd_soc_tplg_pcm *pcm, *_pcm;
1930 int count = hdr->count;
1931 int i;
1932 bool abi_match;
1933
1934 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
1935 return 0;
1936
1937 /* check the element size and count */
1938 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1939 if (pcm->size > sizeof(struct snd_soc_tplg_pcm)
1940 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) {
1941 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1942 pcm->size);
1943 return -EINVAL;
1944 }
1945
1946 if (soc_tplg_check_elem_count(tplg,
1947 pcm->size, count,
1948 hdr->payload_size, "PCM DAI")) {
1949 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
1950 count);
1951 return -EINVAL;
1952 }
1953
1954 for (i = 0; i < count; i++) {
1955 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1956
1957 /* check ABI version by size, create a new version of pcm
1958 * if abi not match.
1959 */
1960 if (pcm->size == sizeof(*pcm)) {
1961 abi_match = true;
1962 _pcm = pcm;
1963 } else {
1964 abi_match = false;
1965 pcm_new_ver(tplg, pcm, &_pcm);
1966 }
1967
1968 /* create the FE DAIs and DAI links */
1969 soc_tplg_pcm_create(tplg, _pcm);
1970
1971 /* offset by version-specific struct size and
1972 * real priv data size
1973 */
1974 tplg->pos += pcm->size + _pcm->priv.size;
1975
1976 if (!abi_match)
1977 kfree(_pcm); /* free the duplicated one */
1978 }
1979
1980 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1981
1982 return 0;
1983}
1984
1985/**
1986 * set_link_hw_format - Set the HW audio format of the physical DAI link.
1987 * @link: &snd_soc_dai_link which should be updated
1988 * @cfg: physical link configs.
1989 *
1990 * Topology context contains a list of supported HW formats (configs) and
1991 * a default format ID for the physical link. This function will use this
1992 * default ID to choose the HW format to set the link's DAI format for init.
1993 */
1994static void set_link_hw_format(struct snd_soc_dai_link *link,
1995 struct snd_soc_tplg_link_config *cfg)
1996{
1997 struct snd_soc_tplg_hw_config *hw_config;
1998 unsigned char bclk_master, fsync_master;
1999 unsigned char invert_bclk, invert_fsync;
2000 int i;
2001
2002 for (i = 0; i < cfg->num_hw_configs; i++) {
2003 hw_config = &cfg->hw_config[i];
2004 if (hw_config->id != cfg->default_hw_config_id)
2005 continue;
2006
2007 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
2008
2009 /* clock signal polarity */
2010 invert_bclk = hw_config->invert_bclk;
2011 invert_fsync = hw_config->invert_fsync;
2012 if (!invert_bclk && !invert_fsync)
2013 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2014 else if (!invert_bclk && invert_fsync)
2015 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2016 else if (invert_bclk && !invert_fsync)
2017 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2018 else
2019 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2020
2021 /* clock masters */
2022 bclk_master = hw_config->bclk_master;
2023 fsync_master = hw_config->fsync_master;
2024 if (!bclk_master && !fsync_master)
2025 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2026 else if (bclk_master && !fsync_master)
2027 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2028 else if (!bclk_master && fsync_master)
2029 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2030 else
2031 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2032 }
2033}
2034
2035/**
2036 * link_new_ver - Create a new physical link config from the old
2037 * version of source.
2038 * @tplg: topology context
2039 * @src: old version of phyical link config as a source
2040 * @link: latest version of physical link config created from the source
2041 *
2042 * Support from vesion 4. User need free the returned link config manually.
2043 */
2044static int link_new_ver(struct soc_tplg *tplg,
2045 struct snd_soc_tplg_link_config *src,
2046 struct snd_soc_tplg_link_config **link)
2047{
2048 struct snd_soc_tplg_link_config *dest;
2049 struct snd_soc_tplg_link_config_v4 *src_v4;
2050 int i;
2051
2052 *link = NULL;
2053
2054 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) {
2055 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2056 return -EINVAL;
2057 }
2058
2059 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2060
2061 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2062 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2063 if (!dest)
2064 return -ENOMEM;
2065
2066 dest->size = sizeof(*dest);
2067 dest->id = src_v4->id;
2068 dest->num_streams = src_v4->num_streams;
2069 for (i = 0; i < dest->num_streams; i++)
2070 memcpy(&dest->stream[i], &src_v4->stream[i],
2071 sizeof(struct snd_soc_tplg_stream));
2072
2073 *link = dest;
2074 return 0;
2075}
2076
2077/* Find and configure an existing physical DAI link */
2078static int soc_tplg_link_config(struct soc_tplg *tplg,
2079 struct snd_soc_tplg_link_config *cfg)
2080{
2081 struct snd_soc_dai_link *link;
2082 const char *name, *stream_name;
2083 size_t len;
2084 int ret;
2085
2086 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2087 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2088 return -EINVAL;
2089 else if (len)
2090 name = cfg->name;
2091 else
2092 name = NULL;
2093
2094 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2095 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2096 return -EINVAL;
2097 else if (len)
2098 stream_name = cfg->stream_name;
2099 else
2100 stream_name = NULL;
2101
2102 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id,
2103 name, stream_name);
2104 if (!link) {
2105 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2106 name, cfg->id);
2107 return -EINVAL;
2108 }
2109
2110 /* hw format */
2111 if (cfg->num_hw_configs)
2112 set_link_hw_format(link, cfg);
2113
2114 /* flags */
2115 if (cfg->flag_mask)
2116 set_link_flags(link, cfg->flag_mask, cfg->flags);
2117
2118 /* pass control to component driver for optional further init */
2119 ret = soc_tplg_dai_link_load(tplg, link);
2120 if (ret < 0) {
2121 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2122 return ret;
2123 }
2124
2125 return 0;
2126}
2127
2128
2129/* Load physical link config elements from the topology context */
2130static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2131 struct snd_soc_tplg_hdr *hdr)
2132{
2133 struct snd_soc_tplg_link_config *link, *_link;
2134 int count = hdr->count;
2135 int i, ret;
2136 bool abi_match;
2137
2138 if (tplg->pass != SOC_TPLG_PASS_LINK) {
2139 tplg->pos += hdr->size + hdr->payload_size;
2140 return 0;
2141 };
2142
2143 /* check the element size and count */
2144 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2145 if (link->size > sizeof(struct snd_soc_tplg_link_config)
2146 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2147 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2148 link->size);
2149 return -EINVAL;
2150 }
2151
2152 if (soc_tplg_check_elem_count(tplg,
2153 link->size, count,
2154 hdr->payload_size, "physical link config")) {
2155 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2156 count);
2157 return -EINVAL;
2158 }
2159
2160 /* config physical DAI links */
2161 for (i = 0; i < count; i++) {
2162 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2163 if (link->size == sizeof(*link)) {
2164 abi_match = true;
2165 _link = link;
2166 } else {
2167 abi_match = false;
2168 ret = link_new_ver(tplg, link, &_link);
2169 if (ret < 0)
2170 return ret;
2171 }
2172
2173 ret = soc_tplg_link_config(tplg, _link);
2174 if (ret < 0)
2175 return ret;
2176
2177 /* offset by version-specific struct size and
2178 * real priv data size
2179 */
2180 tplg->pos += link->size + _link->priv.size;
2181
2182 if (!abi_match)
2183 kfree(_link); /* free the duplicated one */
2184 }
2185
2186 return 0;
2187}
2188
2189/**
2190 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2191 * @tplg: topology context
2192 * @d: physical DAI configs.
2193 *
2194 * The physical dai should already be registered by the platform driver.
2195 * The platform driver should specify the DAI name and ID for matching.
2196 */
2197static int soc_tplg_dai_config(struct soc_tplg *tplg,
2198 struct snd_soc_tplg_dai *d)
2199{
2200 struct snd_soc_dai_link_component dai_component = {0};
2201 struct snd_soc_dai *dai;
2202 struct snd_soc_dai_driver *dai_drv;
2203 struct snd_soc_pcm_stream *stream;
2204 struct snd_soc_tplg_stream_caps *caps;
2205 int ret;
2206
2207 dai_component.dai_name = d->dai_name;
2208 dai = snd_soc_find_dai(&dai_component);
2209 if (!dai) {
2210 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2211 d->dai_name);
2212 return -EINVAL;
2213 }
2214
2215 if (d->dai_id != dai->id) {
2216 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2217 d->dai_name);
2218 return -EINVAL;
2219 }
2220
2221 dai_drv = dai->driver;
2222 if (!dai_drv)
2223 return -EINVAL;
2224
2225 if (d->playback) {
2226 stream = &dai_drv->playback;
2227 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2228 set_stream_info(stream, caps);
2229 }
2230
2231 if (d->capture) {
2232 stream = &dai_drv->capture;
2233 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2234 set_stream_info(stream, caps);
2235 }
2236
2237 if (d->flag_mask)
2238 set_dai_flags(dai_drv, d->flag_mask, d->flags);
2239
2240 /* pass control to component driver for optional further init */
2241 ret = soc_tplg_dai_load(tplg, dai_drv);
2242 if (ret < 0) {
2243 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2244 return ret;
2245 }
2246
2247 return 0;
2248}
2249
2250/* load physical DAI elements */
2251static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2252 struct snd_soc_tplg_hdr *hdr)
2253{
2254 struct snd_soc_tplg_dai *dai;
2255 int count = hdr->count;
2256 int i;
2257
2258 if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2259 return 0;
2260
2261 /* config the existing BE DAIs */
2262 for (i = 0; i < count; i++) {
2263 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2264 if (dai->size != sizeof(*dai)) {
2265 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2266 return -EINVAL;
2267 }
2268
2269 soc_tplg_dai_config(tplg, dai);
2270 tplg->pos += (sizeof(*dai) + dai->priv.size);
2271 }
2272
2273 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2274 return 0;
2275}
2276
2277/**
2278 * manifest_new_ver - Create a new version of manifest from the old version
2279 * of source.
2280 * @tplg: topology context
2281 * @src: old version of manifest as a source
2282 * @manifest: latest version of manifest created from the source
2283 *
2284 * Support from vesion 4. Users need free the returned manifest manually.
2285 */
2286static int manifest_new_ver(struct soc_tplg *tplg,
2287 struct snd_soc_tplg_manifest *src,
2288 struct snd_soc_tplg_manifest **manifest)
2289{
2290 struct snd_soc_tplg_manifest *dest;
2291 struct snd_soc_tplg_manifest_v4 *src_v4;
2292
2293 *manifest = NULL;
2294
2295 if (src->size != sizeof(*src_v4)) {
2296 dev_err(tplg->dev, "ASoC: invalid manifest size\n");
2297 return -EINVAL;
2298 }
2299
2300 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2301
2302 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2303 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL);
2304 if (!dest)
2305 return -ENOMEM;
2306
2307 dest->size = sizeof(*dest); /* size of latest abi version */
2308 dest->control_elems = src_v4->control_elems;
2309 dest->widget_elems = src_v4->widget_elems;
2310 dest->graph_elems = src_v4->graph_elems;
2311 dest->pcm_elems = src_v4->pcm_elems;
2312 dest->dai_link_elems = src_v4->dai_link_elems;
2313 dest->priv.size = src_v4->priv.size;
2314 if (dest->priv.size)
2315 memcpy(dest->priv.data, src_v4->priv.data,
2316 src_v4->priv.size);
2317
2318 *manifest = dest;
2319 return 0;
2320}
2321
2322static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2323 struct snd_soc_tplg_hdr *hdr)
2324{
2325 struct snd_soc_tplg_manifest *manifest, *_manifest;
2326 bool abi_match;
2327 int err;
2328
2329 if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2330 return 0;
2331
2332 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2333
2334 /* check ABI version by size, create a new manifest if abi not match */
2335 if (manifest->size == sizeof(*manifest)) {
2336 abi_match = true;
2337 _manifest = manifest;
2338 } else {
2339 abi_match = false;
2340 err = manifest_new_ver(tplg, manifest, &_manifest);
2341 if (err < 0)
2342 return err;
2343 }
2344
2345 /* pass control to component driver for optional further init */
2346 if (tplg->comp && tplg->ops && tplg->ops->manifest)
2347 return tplg->ops->manifest(tplg->comp, _manifest);
2348
2349 if (!abi_match) /* free the duplicated one */
2350 kfree(_manifest);
2351
2352 return 0;
2353}
2354
2355/* validate header magic, size and type */
2356static int soc_valid_header(struct soc_tplg *tplg,
2357 struct snd_soc_tplg_hdr *hdr)
2358{
2359 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2360 return 0;
2361
2362 if (hdr->size != sizeof(*hdr)) {
2363 dev_err(tplg->dev,
2364 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2365 hdr->type, soc_tplg_get_hdr_offset(tplg),
2366 tplg->fw->size);
2367 return -EINVAL;
2368 }
2369
2370 /* big endian firmware objects not supported atm */
2371 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) {
2372 dev_err(tplg->dev,
2373 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2374 tplg->pass, hdr->magic,
2375 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2376 return -EINVAL;
2377 }
2378
2379 if (hdr->magic != SND_SOC_TPLG_MAGIC) {
2380 dev_err(tplg->dev,
2381 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2382 tplg->pass, hdr->magic,
2383 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2384 return -EINVAL;
2385 }
2386
2387 /* Support ABI from version 4 */
2388 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION
2389 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) {
2390 dev_err(tplg->dev,
2391 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2392 tplg->pass, hdr->abi,
2393 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2394 tplg->fw->size);
2395 return -EINVAL;
2396 }
2397
2398 if (hdr->payload_size == 0) {
2399 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2400 soc_tplg_get_hdr_offset(tplg));
2401 return -EINVAL;
2402 }
2403
2404 if (tplg->pass == hdr->type)
2405 dev_dbg(tplg->dev,
2406 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2407 hdr->payload_size, hdr->type, hdr->version,
2408 hdr->vendor_type, tplg->pass);
2409
2410 return 1;
2411}
2412
2413/* check header type and call appropriate handler */
2414static int soc_tplg_load_header(struct soc_tplg *tplg,
2415 struct snd_soc_tplg_hdr *hdr)
2416{
2417 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2418
2419 /* check for matching ID */
2420 if (hdr->index != tplg->req_index &&
2421 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2422 return 0;
2423
2424 tplg->index = hdr->index;
2425
2426 switch (hdr->type) {
2427 case SND_SOC_TPLG_TYPE_MIXER:
2428 case SND_SOC_TPLG_TYPE_ENUM:
2429 case SND_SOC_TPLG_TYPE_BYTES:
2430 return soc_tplg_kcontrol_elems_load(tplg, hdr);
2431 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2432 return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2433 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2434 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2435 case SND_SOC_TPLG_TYPE_PCM:
2436 return soc_tplg_pcm_elems_load(tplg, hdr);
2437 case SND_SOC_TPLG_TYPE_DAI:
2438 return soc_tplg_dai_elems_load(tplg, hdr);
2439 case SND_SOC_TPLG_TYPE_DAI_LINK:
2440 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2441 /* physical link configurations */
2442 return soc_tplg_link_elems_load(tplg, hdr);
2443 case SND_SOC_TPLG_TYPE_MANIFEST:
2444 return soc_tplg_manifest_load(tplg, hdr);
2445 default:
2446 /* bespoke vendor data object */
2447 return soc_tplg_vendor_load(tplg, hdr);
2448 }
2449
2450 return 0;
2451}
2452
2453/* process the topology file headers */
2454static int soc_tplg_process_headers(struct soc_tplg *tplg)
2455{
2456 struct snd_soc_tplg_hdr *hdr;
2457 int ret;
2458
2459 tplg->pass = SOC_TPLG_PASS_START;
2460
2461 /* process the header types from start to end */
2462 while (tplg->pass <= SOC_TPLG_PASS_END) {
2463
2464 tplg->hdr_pos = tplg->fw->data;
2465 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2466
2467 while (!soc_tplg_is_eof(tplg)) {
2468
2469 /* make sure header is valid before loading */
2470 ret = soc_valid_header(tplg, hdr);
2471 if (ret < 0)
2472 return ret;
2473 else if (ret == 0)
2474 break;
2475
2476 /* load the header object */
2477 ret = soc_tplg_load_header(tplg, hdr);
2478 if (ret < 0)
2479 return ret;
2480
2481 /* goto next header */
2482 tplg->hdr_pos += hdr->payload_size +
2483 sizeof(struct snd_soc_tplg_hdr);
2484 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2485 }
2486
2487 /* next data type pass */
2488 tplg->pass++;
2489 }
2490
2491 /* signal DAPM we are complete */
2492 ret = soc_tplg_dapm_complete(tplg);
2493 if (ret < 0)
2494 dev_err(tplg->dev,
2495 "ASoC: failed to initialise DAPM from Firmware\n");
2496
2497 return ret;
2498}
2499
2500static int soc_tplg_load(struct soc_tplg *tplg)
2501{
2502 int ret;
2503
2504 ret = soc_tplg_process_headers(tplg);
2505 if (ret == 0)
2506 soc_tplg_complete(tplg);
2507
2508 return ret;
2509}
2510
2511/* load audio component topology from "firmware" file */
2512int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2513 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2514{
2515 struct soc_tplg tplg;
2516
2517 /* setup parsing context */
2518 memset(&tplg, 0, sizeof(tplg));
2519 tplg.fw = fw;
2520 tplg.dev = comp->dev;
2521 tplg.comp = comp;
2522 tplg.ops = ops;
2523 tplg.req_index = id;
2524 tplg.io_ops = ops->io_ops;
2525 tplg.io_ops_count = ops->io_ops_count;
2526 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2527 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2528
2529 return soc_tplg_load(&tplg);
2530}
2531EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2532
2533/* remove this dynamic widget */
2534void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2535{
2536 /* make sure we are a widget */
2537 if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2538 return;
2539
2540 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2541}
2542EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2543
2544/* remove all dynamic widgets from this DAPM context */
2545void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2546 u32 index)
2547{
2548 struct snd_soc_dapm_widget *w, *next_w;
2549
2550 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2551
2552 /* make sure we are a widget with correct context */
2553 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2554 continue;
2555
2556 /* match ID */
2557 if (w->dobj.index != index &&
2558 w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2559 continue;
2560 /* check and free and dynamic widget kcontrols */
2561 snd_soc_tplg_widget_remove(w);
2562 snd_soc_dapm_free_widget(w);
2563 }
2564 snd_soc_dapm_reset_cache(dapm);
2565}
2566EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2567
2568/* remove dynamic controls from the component driver */
2569int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2570{
2571 struct snd_soc_dobj *dobj, *next_dobj;
2572 int pass = SOC_TPLG_PASS_END;
2573
2574 /* process the header types from end to start */
2575 while (pass >= SOC_TPLG_PASS_START) {
2576
2577 /* remove mixer controls */
2578 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2579 list) {
2580
2581 /* match index */
2582 if (dobj->index != index &&
2583 index != SND_SOC_TPLG_INDEX_ALL)
2584 continue;
2585
2586 switch (dobj->type) {
2587 case SND_SOC_DOBJ_MIXER:
2588 remove_mixer(comp, dobj, pass);
2589 break;
2590 case SND_SOC_DOBJ_ENUM:
2591 remove_enum(comp, dobj, pass);
2592 break;
2593 case SND_SOC_DOBJ_BYTES:
2594 remove_bytes(comp, dobj, pass);
2595 break;
2596 case SND_SOC_DOBJ_WIDGET:
2597 remove_widget(comp, dobj, pass);
2598 break;
2599 case SND_SOC_DOBJ_PCM:
2600 remove_dai(comp, dobj, pass);
2601 break;
2602 case SND_SOC_DOBJ_DAI_LINK:
2603 remove_link(comp, dobj, pass);
2604 break;
2605 default:
2606 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2607 dobj->type);
2608 break;
2609 }
2610 }
2611 pass--;
2612 }
2613
2614 /* let caller know if FW can be freed when no objects are left */
2615 return !list_empty(&comp->dobj_list);
2616}
2617EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);