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