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