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