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signal/ia64: Document a conflict with SI_USER with SIGFPE
[cris-mirror.git] / sound / soc / soc-topology.c
blobdd471d2c02665631535fb446dcd5fca40e522f8e
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; 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 }
527 kfree(w->kcontrol_news);
528 } else {
529 /* volume mixer or bytes controls */
530 for (i = 0; i < w->num_kcontrols; i++) {
531 struct snd_kcontrol *kcontrol = w->kcontrols[i];
532
533 if (dobj->widget.kcontrol_type
534 == SND_SOC_TPLG_TYPE_MIXER)
535 kfree(kcontrol->tlv.p);
536
537 /* Private value is used as struct soc_mixer_control
538 * for volume mixers or soc_bytes_ext for bytes
539 * controls.
540 */
541 kfree((void *)kcontrol->private_value);
542 snd_ctl_remove(card, kcontrol);
543 }
544 kfree(w->kcontrol_news);
545 }
546 /* widget w is freed by soc-dapm.c */
547 }
548
549 /* remove DAI configurations */
550 static void remove_dai(struct snd_soc_component *comp,
551 struct snd_soc_dobj *dobj, int pass)
552 {
553 struct snd_soc_dai_driver *dai_drv =
554 container_of(dobj, struct snd_soc_dai_driver, dobj);
555
556 if (pass != SOC_TPLG_PASS_PCM_DAI)
557 return;
558
559 if (dobj->ops && dobj->ops->dai_unload)
560 dobj->ops->dai_unload(comp, dobj);
561
562 kfree(dai_drv->name);
563 list_del(&dobj->list);
564 kfree(dai_drv);
565 }
566
567 /* remove link configurations */
568 static void remove_link(struct snd_soc_component *comp,
569 struct snd_soc_dobj *dobj, int pass)
570 {
571 struct snd_soc_dai_link *link =
572 container_of(dobj, struct snd_soc_dai_link, dobj);
573
574 if (pass != SOC_TPLG_PASS_PCM_DAI)
575 return;
576
577 if (dobj->ops && dobj->ops->link_unload)
578 dobj->ops->link_unload(comp, dobj);
579
580 kfree(link->name);
581 kfree(link->stream_name);
582 kfree(link->cpu_dai_name);
583
584 list_del(&dobj->list);
585 snd_soc_remove_dai_link(comp->card, link);
586 kfree(link);
587 }
588
589 /* bind a kcontrol to it's IO handlers */
590 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
591 struct snd_kcontrol_new *k,
592 const struct soc_tplg *tplg)
593 {
594 const struct snd_soc_tplg_kcontrol_ops *ops;
595 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
596 int num_ops, i;
597
598 if (hdr->ops.info == SND_SOC_TPLG_CTL_BYTES
599 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
600 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
601 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
602 struct soc_bytes_ext *sbe;
603 struct snd_soc_tplg_bytes_control *be;
604
605 sbe = (struct soc_bytes_ext *)k->private_value;
606 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
607
608 /* TLV bytes controls need standard kcontrol info handler,
609 * TLV callback and extended put/get handlers.
610 */
611 k->info = snd_soc_bytes_info_ext;
612 k->tlv.c = snd_soc_bytes_tlv_callback;
613
614 ext_ops = tplg->bytes_ext_ops;
615 num_ops = tplg->bytes_ext_ops_count;
616 for (i = 0; i < num_ops; i++) {
617 if (!sbe->put && ext_ops[i].id == be->ext_ops.put)
618 sbe->put = ext_ops[i].put;
619 if (!sbe->get && ext_ops[i].id == be->ext_ops.get)
620 sbe->get = ext_ops[i].get;
621 }
622
623 if (sbe->put && sbe->get)
624 return 0;
625 else
626 return -EINVAL;
627 }
628
629 /* try and map vendor specific kcontrol handlers first */
630 ops = tplg->io_ops;
631 num_ops = tplg->io_ops_count;
632 for (i = 0; i < num_ops; i++) {
633
634 if (k->put == NULL && ops[i].id == hdr->ops.put)
635 k->put = ops[i].put;
636 if (k->get == NULL && ops[i].id == hdr->ops.get)
637 k->get = ops[i].get;
638 if (k->info == NULL && ops[i].id == hdr->ops.info)
639 k->info = ops[i].info;
640 }
641
642 /* vendor specific handlers found ? */
643 if (k->put && k->get && k->info)
644 return 0;
645
646 /* none found so try standard kcontrol handlers */
647 ops = io_ops;
648 num_ops = ARRAY_SIZE(io_ops);
649 for (i = 0; i < num_ops; i++) {
650
651 if (k->put == NULL && ops[i].id == hdr->ops.put)
652 k->put = ops[i].put;
653 if (k->get == NULL && ops[i].id == hdr->ops.get)
654 k->get = ops[i].get;
655 if (k->info == NULL && ops[i].id == hdr->ops.info)
656 k->info = ops[i].info;
657 }
658
659 /* standard handlers found ? */
660 if (k->put && k->get && k->info)
661 return 0;
662
663 /* nothing to bind */
664 return -EINVAL;
665 }
666
667 /* bind a widgets to it's evnt handlers */
668 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
669 const struct snd_soc_tplg_widget_events *events,
670 int num_events, u16 event_type)
671 {
672 int i;
673
674 w->event = NULL;
675
676 for (i = 0; i < num_events; i++) {
677 if (event_type == events[i].type) {
678
679 /* found - so assign event */
680 w->event = events[i].event_handler;
681 return 0;
682 }
683 }
684
685 /* not found */
686 return -EINVAL;
687 }
688 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
689
690 /* optionally pass new dynamic kcontrol to component driver. */
691 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
692 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
693 {
694 if (tplg->comp && tplg->ops && tplg->ops->control_load)
695 return tplg->ops->control_load(tplg->comp, k, hdr);
696
697 return 0;
698 }
699
700
701 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
702 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
703 {
704 unsigned int item_len = 2 * sizeof(unsigned int);
705 unsigned int *p;
706
707 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
708 if (!p)
709 return -ENOMEM;
710
711 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
712 p[1] = item_len;
713 p[2] = scale->min;
714 p[3] = (scale->step & TLV_DB_SCALE_MASK)
715 | (scale->mute ? TLV_DB_SCALE_MUTE : 0);
716
717 kc->tlv.p = (void *)p;
718 return 0;
719 }
720
721 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
722 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
723 {
724 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
725
726 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
727 return 0;
728
729 if (!(tc->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
730 tplg_tlv = &tc->tlv;
731 switch (tplg_tlv->type) {
732 case SNDRV_CTL_TLVT_DB_SCALE:
733 return soc_tplg_create_tlv_db_scale(tplg, kc,
734 &tplg_tlv->scale);
735
736 /* TODO: add support for other TLV types */
737 default:
738 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
739 tplg_tlv->type);
740 return -EINVAL;
741 }
742 }
743
744 return 0;
745 }
746
747 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
748 struct snd_kcontrol_new *kc)
749 {
750 kfree(kc->tlv.p);
751 }
752
753 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
754 size_t size)
755 {
756 struct snd_soc_tplg_bytes_control *be;
757 struct soc_bytes_ext *sbe;
758 struct snd_kcontrol_new kc;
759 int i, err;
760
761 if (soc_tplg_check_elem_count(tplg,
762 sizeof(struct snd_soc_tplg_bytes_control), count,
763 size, "mixer bytes")) {
764 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
765 count);
766 return -EINVAL;
767 }
768
769 for (i = 0; i < count; i++) {
770 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
771
772 /* validate kcontrol */
773 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
774 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
775 return -EINVAL;
776
777 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
778 if (sbe == NULL)
779 return -ENOMEM;
780
781 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
782 be->priv.size);
783
784 dev_dbg(tplg->dev,
785 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
786 be->hdr.name, be->hdr.access);
787
788 memset(&kc, 0, sizeof(kc));
789 kc.name = be->hdr.name;
790 kc.private_value = (long)sbe;
791 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
792 kc.access = be->hdr.access;
793
794 sbe->max = be->max;
795 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
796 sbe->dobj.ops = tplg->ops;
797 INIT_LIST_HEAD(&sbe->dobj.list);
798
799 /* map io handlers */
800 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
801 if (err) {
802 soc_control_err(tplg, &be->hdr, be->hdr.name);
803 kfree(sbe);
804 continue;
805 }
806
807 /* pass control to driver for optional further init */
808 err = soc_tplg_init_kcontrol(tplg, &kc,
809 (struct snd_soc_tplg_ctl_hdr *)be);
810 if (err < 0) {
811 dev_err(tplg->dev, "ASoC: failed to init %s\n",
812 be->hdr.name);
813 kfree(sbe);
814 continue;
815 }
816
817 /* register control here */
818 err = soc_tplg_add_kcontrol(tplg, &kc,
819 &sbe->dobj.control.kcontrol);
820 if (err < 0) {
821 dev_err(tplg->dev, "ASoC: failed to add %s\n",
822 be->hdr.name);
823 kfree(sbe);
824 continue;
825 }
826
827 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
828 }
829 return 0;
830
831 }
832
833 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
834 size_t size)
835 {
836 struct snd_soc_tplg_mixer_control *mc;
837 struct soc_mixer_control *sm;
838 struct snd_kcontrol_new kc;
839 int i, err;
840
841 if (soc_tplg_check_elem_count(tplg,
842 sizeof(struct snd_soc_tplg_mixer_control),
843 count, size, "mixers")) {
844
845 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
846 count);
847 return -EINVAL;
848 }
849
850 for (i = 0; i < count; i++) {
851 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
852
853 /* validate kcontrol */
854 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
855 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
856 return -EINVAL;
857
858 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
859 if (sm == NULL)
860 return -ENOMEM;
861 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
862 mc->priv.size);
863
864 dev_dbg(tplg->dev,
865 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
866 mc->hdr.name, mc->hdr.access);
867
868 memset(&kc, 0, sizeof(kc));
869 kc.name = mc->hdr.name;
870 kc.private_value = (long)sm;
871 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
872 kc.access = mc->hdr.access;
873
874 /* we only support FL/FR channel mapping atm */
875 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
876 SNDRV_CHMAP_FL);
877 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
878 SNDRV_CHMAP_FR);
879 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
880 SNDRV_CHMAP_FL);
881 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
882 SNDRV_CHMAP_FR);
883
884 sm->max = mc->max;
885 sm->min = mc->min;
886 sm->invert = mc->invert;
887 sm->platform_max = mc->platform_max;
888 sm->dobj.index = tplg->index;
889 sm->dobj.ops = tplg->ops;
890 sm->dobj.type = SND_SOC_DOBJ_MIXER;
891 INIT_LIST_HEAD(&sm->dobj.list);
892
893 /* map io handlers */
894 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
895 if (err) {
896 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
897 kfree(sm);
898 continue;
899 }
900
901 /* pass control to driver for optional further init */
902 err = soc_tplg_init_kcontrol(tplg, &kc,
903 (struct snd_soc_tplg_ctl_hdr *) mc);
904 if (err < 0) {
905 dev_err(tplg->dev, "ASoC: failed to init %s\n",
906 mc->hdr.name);
907 kfree(sm);
908 continue;
909 }
910
911 /* create any TLV data */
912 soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
913
914 /* register control here */
915 err = soc_tplg_add_kcontrol(tplg, &kc,
916 &sm->dobj.control.kcontrol);
917 if (err < 0) {
918 dev_err(tplg->dev, "ASoC: failed to add %s\n",
919 mc->hdr.name);
920 soc_tplg_free_tlv(tplg, &kc);
921 kfree(sm);
922 continue;
923 }
924
925 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
926 }
927
928 return 0;
929 }
930
931 static int soc_tplg_denum_create_texts(struct soc_enum *se,
932 struct snd_soc_tplg_enum_control *ec)
933 {
934 int i, ret;
935
936 se->dobj.control.dtexts =
937 kzalloc(sizeof(char *) * ec->items, GFP_KERNEL);
938 if (se->dobj.control.dtexts == NULL)
939 return -ENOMEM;
940
941 for (i = 0; i < ec->items; i++) {
942
943 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
944 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
945 ret = -EINVAL;
946 goto err;
947 }
948
949 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
950 if (!se->dobj.control.dtexts[i]) {
951 ret = -ENOMEM;
952 goto err;
953 }
954 }
955
956 se->texts = (const char * const *)se->dobj.control.dtexts;
957 return 0;
958
959 err:
960 for (--i; i >= 0; i--)
961 kfree(se->dobj.control.dtexts[i]);
962 kfree(se->dobj.control.dtexts);
963 return ret;
964 }
965
966 static int soc_tplg_denum_create_values(struct soc_enum *se,
967 struct snd_soc_tplg_enum_control *ec)
968 {
969 if (ec->items > sizeof(*ec->values))
970 return -EINVAL;
971
972 se->dobj.control.dvalues = kmemdup(ec->values,
973 ec->items * sizeof(u32),
974 GFP_KERNEL);
975 if (!se->dobj.control.dvalues)
976 return -ENOMEM;
977
978 return 0;
979 }
980
981 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
982 size_t size)
983 {
984 struct snd_soc_tplg_enum_control *ec;
985 struct soc_enum *se;
986 struct snd_kcontrol_new kc;
987 int i, ret, err;
988
989 if (soc_tplg_check_elem_count(tplg,
990 sizeof(struct snd_soc_tplg_enum_control),
991 count, size, "enums")) {
992
993 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
994 count);
995 return -EINVAL;
996 }
997
998 for (i = 0; i < count; i++) {
999 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1000 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1001 ec->priv.size);
1002
1003 /* validate kcontrol */
1004 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1005 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1006 return -EINVAL;
1007
1008 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1009 if (se == NULL)
1010 return -ENOMEM;
1011
1012 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1013 ec->hdr.name, ec->items);
1014
1015 memset(&kc, 0, sizeof(kc));
1016 kc.name = ec->hdr.name;
1017 kc.private_value = (long)se;
1018 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1019 kc.access = ec->hdr.access;
1020
1021 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1022 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1023 SNDRV_CHMAP_FL);
1024 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1025 SNDRV_CHMAP_FL);
1026
1027 se->items = ec->items;
1028 se->mask = ec->mask;
1029 se->dobj.index = tplg->index;
1030 se->dobj.type = SND_SOC_DOBJ_ENUM;
1031 se->dobj.ops = tplg->ops;
1032 INIT_LIST_HEAD(&se->dobj.list);
1033
1034 switch (ec->hdr.ops.info) {
1035 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1036 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1037 err = soc_tplg_denum_create_values(se, ec);
1038 if (err < 0) {
1039 dev_err(tplg->dev,
1040 "ASoC: could not create values for %s\n",
1041 ec->hdr.name);
1042 kfree(se);
1043 continue;
1044 }
1045 /* fall through and create texts */
1046 case SND_SOC_TPLG_CTL_ENUM:
1047 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1048 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1049 err = soc_tplg_denum_create_texts(se, ec);
1050 if (err < 0) {
1051 dev_err(tplg->dev,
1052 "ASoC: could not create texts for %s\n",
1053 ec->hdr.name);
1054 kfree(se);
1055 continue;
1056 }
1057 break;
1058 default:
1059 dev_err(tplg->dev,
1060 "ASoC: invalid enum control type %d for %s\n",
1061 ec->hdr.ops.info, ec->hdr.name);
1062 kfree(se);
1063 continue;
1064 }
1065
1066 /* map io handlers */
1067 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1068 if (err) {
1069 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1070 kfree(se);
1071 continue;
1072 }
1073
1074 /* pass control to driver for optional further init */
1075 err = soc_tplg_init_kcontrol(tplg, &kc,
1076 (struct snd_soc_tplg_ctl_hdr *) ec);
1077 if (err < 0) {
1078 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1079 ec->hdr.name);
1080 kfree(se);
1081 continue;
1082 }
1083
1084 /* register control here */
1085 ret = soc_tplg_add_kcontrol(tplg,
1086 &kc, &se->dobj.control.kcontrol);
1087 if (ret < 0) {
1088 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1089 ec->hdr.name);
1090 kfree(se);
1091 continue;
1092 }
1093
1094 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1095 }
1096
1097 return 0;
1098 }
1099
1100 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1101 struct snd_soc_tplg_hdr *hdr)
1102 {
1103 struct snd_soc_tplg_ctl_hdr *control_hdr;
1104 int i;
1105
1106 if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1107 tplg->pos += hdr->size + hdr->payload_size;
1108 return 0;
1109 }
1110
1111 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1112 soc_tplg_get_offset(tplg));
1113
1114 for (i = 0; i < hdr->count; i++) {
1115
1116 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1117
1118 if (control_hdr->size != sizeof(*control_hdr)) {
1119 dev_err(tplg->dev, "ASoC: invalid control size\n");
1120 return -EINVAL;
1121 }
1122
1123 switch (control_hdr->ops.info) {
1124 case SND_SOC_TPLG_CTL_VOLSW:
1125 case SND_SOC_TPLG_CTL_STROBE:
1126 case SND_SOC_TPLG_CTL_VOLSW_SX:
1127 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1128 case SND_SOC_TPLG_CTL_RANGE:
1129 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1130 case SND_SOC_TPLG_DAPM_CTL_PIN:
1131 soc_tplg_dmixer_create(tplg, 1, hdr->payload_size);
1132 break;
1133 case SND_SOC_TPLG_CTL_ENUM:
1134 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1135 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1136 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1137 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1138 soc_tplg_denum_create(tplg, 1, hdr->payload_size);
1139 break;
1140 case SND_SOC_TPLG_CTL_BYTES:
1141 soc_tplg_dbytes_create(tplg, 1, hdr->payload_size);
1142 break;
1143 default:
1144 soc_bind_err(tplg, control_hdr, i);
1145 return -EINVAL;
1146 }
1147 }
1148
1149 return 0;
1150 }
1151
1152 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1153 struct snd_soc_tplg_hdr *hdr)
1154 {
1155 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1156 struct snd_soc_dapm_route route;
1157 struct snd_soc_tplg_dapm_graph_elem *elem;
1158 int count = hdr->count, i;
1159
1160 if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1161 tplg->pos += hdr->size + hdr->payload_size;
1162 return 0;
1163 }
1164
1165 if (soc_tplg_check_elem_count(tplg,
1166 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1167 count, hdr->payload_size, "graph")) {
1168
1169 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1170 count);
1171 return -EINVAL;
1172 }
1173
1174 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1175 hdr->index);
1176
1177 for (i = 0; i < count; i++) {
1178 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1179 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1180
1181 /* validate routes */
1182 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1183 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1184 return -EINVAL;
1185 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1186 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1187 return -EINVAL;
1188 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1189 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1190 return -EINVAL;
1191
1192 route.source = elem->source;
1193 route.sink = elem->sink;
1194 route.connected = NULL; /* set to NULL atm for tplg users */
1195 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1196 route.control = NULL;
1197 else
1198 route.control = elem->control;
1199
1200 /* add route, but keep going if some fail */
1201 snd_soc_dapm_add_routes(dapm, &route, 1);
1202 }
1203
1204 return 0;
1205 }
1206
1207 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1208 struct soc_tplg *tplg, int num_kcontrols)
1209 {
1210 struct snd_kcontrol_new *kc;
1211 struct soc_mixer_control *sm;
1212 struct snd_soc_tplg_mixer_control *mc;
1213 int i, err;
1214
1215 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1216 if (kc == NULL)
1217 return NULL;
1218
1219 for (i = 0; i < num_kcontrols; i++) {
1220 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1221 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1222 if (sm == NULL)
1223 goto err;
1224
1225 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1226 mc->priv.size);
1227
1228 /* validate kcontrol */
1229 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1230 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1231 goto err_str;
1232
1233 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1234 mc->hdr.name, i);
1235
1236 kc[i].name = mc->hdr.name;
1237 kc[i].private_value = (long)sm;
1238 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1239 kc[i].access = mc->hdr.access;
1240
1241 /* we only support FL/FR channel mapping atm */
1242 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1243 SNDRV_CHMAP_FL);
1244 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1245 SNDRV_CHMAP_FR);
1246 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1247 SNDRV_CHMAP_FL);
1248 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1249 SNDRV_CHMAP_FR);
1250
1251 sm->max = mc->max;
1252 sm->min = mc->min;
1253 sm->invert = mc->invert;
1254 sm->platform_max = mc->platform_max;
1255 sm->dobj.index = tplg->index;
1256 INIT_LIST_HEAD(&sm->dobj.list);
1257
1258 /* map io handlers */
1259 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1260 if (err) {
1261 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1262 kfree(sm);
1263 continue;
1264 }
1265
1266 /* pass control to driver for optional further init */
1267 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1268 (struct snd_soc_tplg_ctl_hdr *)mc);
1269 if (err < 0) {
1270 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1271 mc->hdr.name);
1272 kfree(sm);
1273 continue;
1274 }
1275 }
1276 return kc;
1277
1278 err_str:
1279 kfree(sm);
1280 err:
1281 for (--i; i >= 0; i--)
1282 kfree((void *)kc[i].private_value);
1283 kfree(kc);
1284 return NULL;
1285 }
1286
1287 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1288 struct soc_tplg *tplg, int num_kcontrols)
1289 {
1290 struct snd_kcontrol_new *kc;
1291 struct snd_soc_tplg_enum_control *ec;
1292 struct soc_enum *se;
1293 int i, j, err;
1294
1295 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1296 if (kc == NULL)
1297 return NULL;
1298
1299 for (i = 0; i < num_kcontrols; i++) {
1300 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1301 /* validate kcontrol */
1302 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1303 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1304 return NULL;
1305
1306 se = kzalloc(sizeof(*se), GFP_KERNEL);
1307 if (se == NULL)
1308 goto err;
1309
1310 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1311 ec->hdr.name);
1312
1313 kc[i].name = ec->hdr.name;
1314 kc[i].private_value = (long)se;
1315 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1316 kc[i].access = ec->hdr.access;
1317
1318 /* we only support FL/FR channel mapping atm */
1319 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1320 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1321 SNDRV_CHMAP_FL);
1322 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1323 SNDRV_CHMAP_FR);
1324
1325 se->items = ec->items;
1326 se->mask = ec->mask;
1327 se->dobj.index = tplg->index;
1328
1329 switch (ec->hdr.ops.info) {
1330 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1331 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1332 err = soc_tplg_denum_create_values(se, ec);
1333 if (err < 0) {
1334 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1335 ec->hdr.name);
1336 goto err_se;
1337 }
1338 /* fall through to create texts */
1339 case SND_SOC_TPLG_CTL_ENUM:
1340 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1341 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1342 err = soc_tplg_denum_create_texts(se, ec);
1343 if (err < 0) {
1344 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1345 ec->hdr.name);
1346 goto err_se;
1347 }
1348 break;
1349 default:
1350 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1351 ec->hdr.ops.info, ec->hdr.name);
1352 goto err_se;
1353 }
1354
1355 /* map io handlers */
1356 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1357 if (err) {
1358 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1359 goto err_se;
1360 }
1361
1362 /* pass control to driver for optional further init */
1363 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1364 (struct snd_soc_tplg_ctl_hdr *)ec);
1365 if (err < 0) {
1366 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1367 ec->hdr.name);
1368 goto err_se;
1369 }
1370
1371 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1372 ec->priv.size);
1373 }
1374
1375 return kc;
1376
1377 err_se:
1378 for (; i >= 0; i--) {
1379 /* free values and texts */
1380 se = (struct soc_enum *)kc[i].private_value;
1381 kfree(se->dobj.control.dvalues);
1382 for (j = 0; j < ec->items; j++)
1383 kfree(se->dobj.control.dtexts[j]);
1384
1385 kfree(se);
1386 }
1387 err:
1388 kfree(kc);
1389
1390 return NULL;
1391 }
1392
1393 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1394 struct soc_tplg *tplg, int count)
1395 {
1396 struct snd_soc_tplg_bytes_control *be;
1397 struct soc_bytes_ext *sbe;
1398 struct snd_kcontrol_new *kc;
1399 int i, err;
1400
1401 kc = kcalloc(count, sizeof(*kc), GFP_KERNEL);
1402 if (!kc)
1403 return NULL;
1404
1405 for (i = 0; i < count; i++) {
1406 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1407
1408 /* validate kcontrol */
1409 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1410 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1411 goto err;
1412
1413 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1414 if (sbe == NULL)
1415 goto err;
1416
1417 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1418 be->priv.size);
1419
1420 dev_dbg(tplg->dev,
1421 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1422 be->hdr.name, be->hdr.access);
1423
1424 kc[i].name = be->hdr.name;
1425 kc[i].private_value = (long)sbe;
1426 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1427 kc[i].access = be->hdr.access;
1428
1429 sbe->max = be->max;
1430 INIT_LIST_HEAD(&sbe->dobj.list);
1431
1432 /* map standard io handlers and check for external handlers */
1433 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1434 if (err) {
1435 soc_control_err(tplg, &be->hdr, be->hdr.name);
1436 kfree(sbe);
1437 continue;
1438 }
1439
1440 /* pass control to driver for optional further init */
1441 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1442 (struct snd_soc_tplg_ctl_hdr *)be);
1443 if (err < 0) {
1444 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1445 be->hdr.name);
1446 kfree(sbe);
1447 continue;
1448 }
1449 }
1450
1451 return kc;
1452
1453 err:
1454 for (--i; i >= 0; i--)
1455 kfree((void *)kc[i].private_value);
1456
1457 kfree(kc);
1458 return NULL;
1459 }
1460
1461 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1462 struct snd_soc_tplg_dapm_widget *w)
1463 {
1464 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1465 struct snd_soc_dapm_widget template, *widget;
1466 struct snd_soc_tplg_ctl_hdr *control_hdr;
1467 struct snd_soc_card *card = tplg->comp->card;
1468 unsigned int kcontrol_type;
1469 int ret = 0;
1470
1471 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1472 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1473 return -EINVAL;
1474 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1475 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1476 return -EINVAL;
1477
1478 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1479 w->name, w->id);
1480
1481 memset(&template, 0, sizeof(template));
1482
1483 /* map user to kernel widget ID */
1484 template.id = get_widget_id(w->id);
1485 if (template.id < 0)
1486 return template.id;
1487
1488 /* strings are allocated here, but used and freed by the widget */
1489 template.name = kstrdup(w->name, GFP_KERNEL);
1490 if (!template.name)
1491 return -ENOMEM;
1492 template.sname = kstrdup(w->sname, GFP_KERNEL);
1493 if (!template.sname) {
1494 ret = -ENOMEM;
1495 goto err;
1496 }
1497 template.reg = w->reg;
1498 template.shift = w->shift;
1499 template.mask = w->mask;
1500 template.subseq = w->subseq;
1501 template.on_val = w->invert ? 0 : 1;
1502 template.off_val = w->invert ? 1 : 0;
1503 template.ignore_suspend = w->ignore_suspend;
1504 template.event_flags = w->event_flags;
1505 template.dobj.index = tplg->index;
1506
1507 tplg->pos +=
1508 (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size);
1509 if (w->num_kcontrols == 0) {
1510 kcontrol_type = 0;
1511 template.num_kcontrols = 0;
1512 goto widget;
1513 }
1514
1515 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1516 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1517 w->name, w->num_kcontrols, control_hdr->type);
1518
1519 switch (control_hdr->ops.info) {
1520 case SND_SOC_TPLG_CTL_VOLSW:
1521 case SND_SOC_TPLG_CTL_STROBE:
1522 case SND_SOC_TPLG_CTL_VOLSW_SX:
1523 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1524 case SND_SOC_TPLG_CTL_RANGE:
1525 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1526 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1527 template.num_kcontrols = w->num_kcontrols;
1528 template.kcontrol_news =
1529 soc_tplg_dapm_widget_dmixer_create(tplg,
1530 template.num_kcontrols);
1531 if (!template.kcontrol_news) {
1532 ret = -ENOMEM;
1533 goto hdr_err;
1534 }
1535 break;
1536 case SND_SOC_TPLG_CTL_ENUM:
1537 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1538 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1539 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1540 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1541 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1542 template.num_kcontrols = w->num_kcontrols;
1543 template.kcontrol_news =
1544 soc_tplg_dapm_widget_denum_create(tplg,
1545 template.num_kcontrols);
1546 if (!template.kcontrol_news) {
1547 ret = -ENOMEM;
1548 goto hdr_err;
1549 }
1550 break;
1551 case SND_SOC_TPLG_CTL_BYTES:
1552 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1553 template.num_kcontrols = w->num_kcontrols;
1554 template.kcontrol_news =
1555 soc_tplg_dapm_widget_dbytes_create(tplg,
1556 template.num_kcontrols);
1557 if (!template.kcontrol_news) {
1558 ret = -ENOMEM;
1559 goto hdr_err;
1560 }
1561 break;
1562 default:
1563 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1564 control_hdr->ops.get, control_hdr->ops.put,
1565 control_hdr->ops.info);
1566 ret = -EINVAL;
1567 goto hdr_err;
1568 }
1569
1570 widget:
1571 ret = soc_tplg_widget_load(tplg, &template, w);
1572 if (ret < 0)
1573 goto hdr_err;
1574
1575 /* card dapm mutex is held by the core if we are loading topology
1576 * data during sound card init. */
1577 if (card->instantiated)
1578 widget = snd_soc_dapm_new_control(dapm, &template);
1579 else
1580 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1581 if (IS_ERR(widget)) {
1582 ret = PTR_ERR(widget);
1583 /* Do not nag about probe deferrals */
1584 if (ret != -EPROBE_DEFER)
1585 dev_err(tplg->dev,
1586 "ASoC: failed to create widget %s controls (%d)\n",
1587 w->name, ret);
1588 goto hdr_err;
1589 }
1590 if (widget == NULL) {
1591 dev_err(tplg->dev, "ASoC: failed to create widget %s controls\n",
1592 w->name);
1593 ret = -ENOMEM;
1594 goto hdr_err;
1595 }
1596
1597 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1598 widget->dobj.widget.kcontrol_type = kcontrol_type;
1599 widget->dobj.ops = tplg->ops;
1600 widget->dobj.index = tplg->index;
1601 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1602
1603 ret = soc_tplg_widget_ready(tplg, widget, w);
1604 if (ret < 0)
1605 goto ready_err;
1606
1607 return 0;
1608
1609 ready_err:
1610 snd_soc_tplg_widget_remove(widget);
1611 snd_soc_dapm_free_widget(widget);
1612 hdr_err:
1613 kfree(template.sname);
1614 err:
1615 kfree(template.name);
1616 return ret;
1617 }
1618
1619 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1620 struct snd_soc_tplg_hdr *hdr)
1621 {
1622 struct snd_soc_tplg_dapm_widget *widget;
1623 int ret, count = hdr->count, i;
1624
1625 if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1626 return 0;
1627
1628 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1629
1630 for (i = 0; i < count; i++) {
1631 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1632 if (widget->size != sizeof(*widget)) {
1633 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1634 return -EINVAL;
1635 }
1636
1637 ret = soc_tplg_dapm_widget_create(tplg, widget);
1638 if (ret < 0) {
1639 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1640 widget->name);
1641 return ret;
1642 }
1643 }
1644
1645 return 0;
1646 }
1647
1648 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1649 {
1650 struct snd_soc_card *card = tplg->comp->card;
1651 int ret;
1652
1653 /* Card might not have been registered at this point.
1654 * If so, just return success.
1655 */
1656 if (!card || !card->instantiated) {
1657 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1658 " widget card binding deferred\n");
1659 return 0;
1660 }
1661
1662 ret = snd_soc_dapm_new_widgets(card);
1663 if (ret < 0)
1664 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1665 ret);
1666
1667 return 0;
1668 }
1669
1670 static void set_stream_info(struct snd_soc_pcm_stream *stream,
1671 struct snd_soc_tplg_stream_caps *caps)
1672 {
1673 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1674 stream->channels_min = caps->channels_min;
1675 stream->channels_max = caps->channels_max;
1676 stream->rates = caps->rates;
1677 stream->rate_min = caps->rate_min;
1678 stream->rate_max = caps->rate_max;
1679 stream->formats = caps->formats;
1680 stream->sig_bits = caps->sig_bits;
1681 }
1682
1683 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1684 unsigned int flag_mask, unsigned int flags)
1685 {
1686 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1687 dai_drv->symmetric_rates =
1688 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1689
1690 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1691 dai_drv->symmetric_channels =
1692 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1693 1 : 0;
1694
1695 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1696 dai_drv->symmetric_samplebits =
1697 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1698 1 : 0;
1699 }
1700
1701 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1702 struct snd_soc_tplg_pcm *pcm)
1703 {
1704 struct snd_soc_dai_driver *dai_drv;
1705 struct snd_soc_pcm_stream *stream;
1706 struct snd_soc_tplg_stream_caps *caps;
1707 int ret;
1708
1709 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1710 if (dai_drv == NULL)
1711 return -ENOMEM;
1712
1713 if (strlen(pcm->dai_name))
1714 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1715 dai_drv->id = pcm->dai_id;
1716
1717 if (pcm->playback) {
1718 stream = &dai_drv->playback;
1719 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1720 set_stream_info(stream, caps);
1721 }
1722
1723 if (pcm->capture) {
1724 stream = &dai_drv->capture;
1725 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1726 set_stream_info(stream, caps);
1727 }
1728
1729 /* pass control to component driver for optional further init */
1730 ret = soc_tplg_dai_load(tplg, dai_drv);
1731 if (ret < 0) {
1732 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1733 kfree(dai_drv);
1734 return ret;
1735 }
1736
1737 dai_drv->dobj.index = tplg->index;
1738 dai_drv->dobj.ops = tplg->ops;
1739 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1740 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1741
1742 /* register the DAI to the component */
1743 return snd_soc_register_dai(tplg->comp, dai_drv);
1744 }
1745
1746 static void set_link_flags(struct snd_soc_dai_link *link,
1747 unsigned int flag_mask, unsigned int flags)
1748 {
1749 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1750 link->symmetric_rates =
1751 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1752
1753 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1754 link->symmetric_channels =
1755 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1756 1 : 0;
1757
1758 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1759 link->symmetric_samplebits =
1760 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1761 1 : 0;
1762
1763 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1764 link->ignore_suspend =
1765 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1766 1 : 0;
1767 }
1768
1769 /* create the FE DAI link */
1770 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1771 struct snd_soc_tplg_pcm *pcm)
1772 {
1773 struct snd_soc_dai_link *link;
1774 int ret;
1775
1776 link = kzalloc(sizeof(struct snd_soc_dai_link), GFP_KERNEL);
1777 if (link == NULL)
1778 return -ENOMEM;
1779
1780 if (strlen(pcm->pcm_name)) {
1781 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1782 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1783 }
1784 link->id = pcm->pcm_id;
1785
1786 if (strlen(pcm->dai_name))
1787 link->cpu_dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1788
1789 link->codec_name = "snd-soc-dummy";
1790 link->codec_dai_name = "snd-soc-dummy-dai";
1791
1792 /* enable DPCM */
1793 link->dynamic = 1;
1794 link->dpcm_playback = pcm->playback;
1795 link->dpcm_capture = pcm->capture;
1796 if (pcm->flag_mask)
1797 set_link_flags(link, pcm->flag_mask, pcm->flags);
1798
1799 /* pass control to component driver for optional further init */
1800 ret = soc_tplg_dai_link_load(tplg, link);
1801 if (ret < 0) {
1802 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1803 kfree(link);
1804 return ret;
1805 }
1806
1807 link->dobj.index = tplg->index;
1808 link->dobj.ops = tplg->ops;
1809 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1810 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1811
1812 snd_soc_add_dai_link(tplg->comp->card, link);
1813 return 0;
1814 }
1815
1816 /* create a FE DAI and DAI link from the PCM object */
1817 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1818 struct snd_soc_tplg_pcm *pcm)
1819 {
1820 int ret;
1821
1822 ret = soc_tplg_dai_create(tplg, pcm);
1823 if (ret < 0)
1824 return ret;
1825
1826 return soc_tplg_fe_link_create(tplg, pcm);
1827 }
1828
1829 /* copy stream caps from the old version 4 of source */
1830 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1831 struct snd_soc_tplg_stream_caps_v4 *src)
1832 {
1833 dest->size = sizeof(*dest);
1834 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1835 dest->formats = src->formats;
1836 dest->rates = src->rates;
1837 dest->rate_min = src->rate_min;
1838 dest->rate_max = src->rate_max;
1839 dest->channels_min = src->channels_min;
1840 dest->channels_max = src->channels_max;
1841 dest->periods_min = src->periods_min;
1842 dest->periods_max = src->periods_max;
1843 dest->period_size_min = src->period_size_min;
1844 dest->period_size_max = src->period_size_max;
1845 dest->buffer_size_min = src->buffer_size_min;
1846 dest->buffer_size_max = src->buffer_size_max;
1847 }
1848
1849 /**
1850 * pcm_new_ver - Create the new version of PCM from the old version.
1851 * @tplg: topology context
1852 * @src: older version of pcm as a source
1853 * @pcm: latest version of pcm created from the source
1854 *
1855 * Support from vesion 4. User should free the returned pcm manually.
1856 */
1857 static int pcm_new_ver(struct soc_tplg *tplg,
1858 struct snd_soc_tplg_pcm *src,
1859 struct snd_soc_tplg_pcm **pcm)
1860 {
1861 struct snd_soc_tplg_pcm *dest;
1862 struct snd_soc_tplg_pcm_v4 *src_v4;
1863 int i;
1864
1865 *pcm = NULL;
1866
1867 if (src->size != sizeof(*src_v4)) {
1868 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1869 return -EINVAL;
1870 }
1871
1872 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1873 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1874 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1875 if (!dest)
1876 return -ENOMEM;
1877
1878 dest->size = sizeof(*dest); /* size of latest abi version */
1879 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1880 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1881 dest->pcm_id = src_v4->pcm_id;
1882 dest->dai_id = src_v4->dai_id;
1883 dest->playback = src_v4->playback;
1884 dest->capture = src_v4->capture;
1885 dest->compress = src_v4->compress;
1886 dest->num_streams = src_v4->num_streams;
1887 for (i = 0; i < dest->num_streams; i++)
1888 memcpy(&dest->stream[i], &src_v4->stream[i],
1889 sizeof(struct snd_soc_tplg_stream));
1890
1891 for (i = 0; i < 2; i++)
1892 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
1893
1894 *pcm = dest;
1895 return 0;
1896 }
1897
1898 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1899 struct snd_soc_tplg_hdr *hdr)
1900 {
1901 struct snd_soc_tplg_pcm *pcm, *_pcm;
1902 int count = hdr->count;
1903 int i;
1904 bool abi_match;
1905
1906 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
1907 return 0;
1908
1909 /* check the element size and count */
1910 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1911 if (pcm->size > sizeof(struct snd_soc_tplg_pcm)
1912 || pcm->size < sizeof(struct snd_soc_tplg_pcm_v4)) {
1913 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1914 pcm->size);
1915 return -EINVAL;
1916 }
1917
1918 if (soc_tplg_check_elem_count(tplg,
1919 pcm->size, count,
1920 hdr->payload_size, "PCM DAI")) {
1921 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
1922 count);
1923 return -EINVAL;
1924 }
1925
1926 for (i = 0; i < count; i++) {
1927 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1928
1929 /* check ABI version by size, create a new version of pcm
1930 * if abi not match.
1931 */
1932 if (pcm->size == sizeof(*pcm)) {
1933 abi_match = true;
1934 _pcm = pcm;
1935 } else {
1936 abi_match = false;
1937 pcm_new_ver(tplg, pcm, &_pcm);
1938 }
1939
1940 /* create the FE DAIs and DAI links */
1941 soc_tplg_pcm_create(tplg, _pcm);
1942
1943 /* offset by version-specific struct size and
1944 * real priv data size
1945 */
1946 tplg->pos += pcm->size + _pcm->priv.size;
1947
1948 if (!abi_match)
1949 kfree(_pcm); /* free the duplicated one */
1950 }
1951
1952 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1953
1954 return 0;
1955 }
1956
1957 /**
1958 * set_link_hw_format - Set the HW audio format of the physical DAI link.
1959 * @link: &snd_soc_dai_link which should be updated
1960 * @cfg: physical link configs.
1961 *
1962 * Topology context contains a list of supported HW formats (configs) and
1963 * a default format ID for the physical link. This function will use this
1964 * default ID to choose the HW format to set the link's DAI format for init.
1965 */
1966 static void set_link_hw_format(struct snd_soc_dai_link *link,
1967 struct snd_soc_tplg_link_config *cfg)
1968 {
1969 struct snd_soc_tplg_hw_config *hw_config;
1970 unsigned char bclk_master, fsync_master;
1971 unsigned char invert_bclk, invert_fsync;
1972 int i;
1973
1974 for (i = 0; i < cfg->num_hw_configs; i++) {
1975 hw_config = &cfg->hw_config[i];
1976 if (hw_config->id != cfg->default_hw_config_id)
1977 continue;
1978
1979 link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
1980
1981 /* clock signal polarity */
1982 invert_bclk = hw_config->invert_bclk;
1983 invert_fsync = hw_config->invert_fsync;
1984 if (!invert_bclk && !invert_fsync)
1985 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
1986 else if (!invert_bclk && invert_fsync)
1987 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
1988 else if (invert_bclk && !invert_fsync)
1989 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
1990 else
1991 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
1992
1993 /* clock masters */
1994 bclk_master = hw_config->bclk_master;
1995 fsync_master = hw_config->fsync_master;
1996 if (!bclk_master && !fsync_master)
1997 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1998 else if (bclk_master && !fsync_master)
1999 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2000 else if (!bclk_master && fsync_master)
2001 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2002 else
2003 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2004 }
2005 }
2006
2007 /**
2008 * link_new_ver - Create a new physical link config from the old
2009 * version of source.
2010 * @tplg: topology context
2011 * @src: old version of phyical link config as a source
2012 * @link: latest version of physical link config created from the source
2013 *
2014 * Support from vesion 4. User need free the returned link config manually.
2015 */
2016 static int link_new_ver(struct soc_tplg *tplg,
2017 struct snd_soc_tplg_link_config *src,
2018 struct snd_soc_tplg_link_config **link)
2019 {
2020 struct snd_soc_tplg_link_config *dest;
2021 struct snd_soc_tplg_link_config_v4 *src_v4;
2022 int i;
2023
2024 *link = NULL;
2025
2026 if (src->size != sizeof(struct snd_soc_tplg_link_config_v4)) {
2027 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2028 return -EINVAL;
2029 }
2030
2031 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2032
2033 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2034 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2035 if (!dest)
2036 return -ENOMEM;
2037
2038 dest->size = sizeof(*dest);
2039 dest->id = src_v4->id;
2040 dest->num_streams = src_v4->num_streams;
2041 for (i = 0; i < dest->num_streams; i++)
2042 memcpy(&dest->stream[i], &src_v4->stream[i],
2043 sizeof(struct snd_soc_tplg_stream));
2044
2045 *link = dest;
2046 return 0;
2047 }
2048
2049 /* Find and configure an existing physical DAI link */
2050 static int soc_tplg_link_config(struct soc_tplg *tplg,
2051 struct snd_soc_tplg_link_config *cfg)
2052 {
2053 struct snd_soc_dai_link *link;
2054 const char *name, *stream_name;
2055 size_t len;
2056 int ret;
2057
2058 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2059 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2060 return -EINVAL;
2061 else if (len)
2062 name = cfg->name;
2063 else
2064 name = NULL;
2065
2066 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2067 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2068 return -EINVAL;
2069 else if (len)
2070 stream_name = cfg->stream_name;
2071 else
2072 stream_name = NULL;
2073
2074 link = snd_soc_find_dai_link(tplg->comp->card, cfg->id,
2075 name, stream_name);
2076 if (!link) {
2077 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2078 name, cfg->id);
2079 return -EINVAL;
2080 }
2081
2082 /* hw format */
2083 if (cfg->num_hw_configs)
2084 set_link_hw_format(link, cfg);
2085
2086 /* flags */
2087 if (cfg->flag_mask)
2088 set_link_flags(link, cfg->flag_mask, cfg->flags);
2089
2090 /* pass control to component driver for optional further init */
2091 ret = soc_tplg_dai_link_load(tplg, link);
2092 if (ret < 0) {
2093 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2094 return ret;
2095 }
2096
2097 return 0;
2098 }
2099
2100
2101 /* Load physical link config elements from the topology context */
2102 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2103 struct snd_soc_tplg_hdr *hdr)
2104 {
2105 struct snd_soc_tplg_link_config *link, *_link;
2106 int count = hdr->count;
2107 int i, ret;
2108 bool abi_match;
2109
2110 if (tplg->pass != SOC_TPLG_PASS_LINK) {
2111 tplg->pos += hdr->size + hdr->payload_size;
2112 return 0;
2113 };
2114
2115 /* check the element size and count */
2116 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2117 if (link->size > sizeof(struct snd_soc_tplg_link_config)
2118 || link->size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2119 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2120 link->size);
2121 return -EINVAL;
2122 }
2123
2124 if (soc_tplg_check_elem_count(tplg,
2125 link->size, count,
2126 hdr->payload_size, "physical link config")) {
2127 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2128 count);
2129 return -EINVAL;
2130 }
2131
2132 /* config physical DAI links */
2133 for (i = 0; i < count; i++) {
2134 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2135 if (link->size == sizeof(*link)) {
2136 abi_match = true;
2137 _link = link;
2138 } else {
2139 abi_match = false;
2140 ret = link_new_ver(tplg, link, &_link);
2141 if (ret < 0)
2142 return ret;
2143 }
2144
2145 ret = soc_tplg_link_config(tplg, _link);
2146 if (ret < 0)
2147 return ret;
2148
2149 /* offset by version-specific struct size and
2150 * real priv data size
2151 */
2152 tplg->pos += link->size + _link->priv.size;
2153
2154 if (!abi_match)
2155 kfree(_link); /* free the duplicated one */
2156 }
2157
2158 return 0;
2159 }
2160
2161 /**
2162 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2163 * @tplg: topology context
2164 * @d: physical DAI configs.
2165 *
2166 * The physical dai should already be registered by the platform driver.
2167 * The platform driver should specify the DAI name and ID for matching.
2168 */
2169 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2170 struct snd_soc_tplg_dai *d)
2171 {
2172 struct snd_soc_dai_link_component dai_component = {0};
2173 struct snd_soc_dai *dai;
2174 struct snd_soc_dai_driver *dai_drv;
2175 struct snd_soc_pcm_stream *stream;
2176 struct snd_soc_tplg_stream_caps *caps;
2177 int ret;
2178
2179 dai_component.dai_name = d->dai_name;
2180 dai = snd_soc_find_dai(&dai_component);
2181 if (!dai) {
2182 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2183 d->dai_name);
2184 return -EINVAL;
2185 }
2186
2187 if (d->dai_id != dai->id) {
2188 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2189 d->dai_name);
2190 return -EINVAL;
2191 }
2192
2193 dai_drv = dai->driver;
2194 if (!dai_drv)
2195 return -EINVAL;
2196
2197 if (d->playback) {
2198 stream = &dai_drv->playback;
2199 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2200 set_stream_info(stream, caps);
2201 }
2202
2203 if (d->capture) {
2204 stream = &dai_drv->capture;
2205 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2206 set_stream_info(stream, caps);
2207 }
2208
2209 if (d->flag_mask)
2210 set_dai_flags(dai_drv, d->flag_mask, d->flags);
2211
2212 /* pass control to component driver for optional further init */
2213 ret = soc_tplg_dai_load(tplg, dai_drv);
2214 if (ret < 0) {
2215 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2216 return ret;
2217 }
2218
2219 return 0;
2220 }
2221
2222 /* load physical DAI elements */
2223 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2224 struct snd_soc_tplg_hdr *hdr)
2225 {
2226 struct snd_soc_tplg_dai *dai;
2227 int count = hdr->count;
2228 int i;
2229
2230 if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2231 return 0;
2232
2233 /* config the existing BE DAIs */
2234 for (i = 0; i < count; i++) {
2235 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2236 if (dai->size != sizeof(*dai)) {
2237 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2238 return -EINVAL;
2239 }
2240
2241 soc_tplg_dai_config(tplg, dai);
2242 tplg->pos += (sizeof(*dai) + dai->priv.size);
2243 }
2244
2245 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2246 return 0;
2247 }
2248
2249 /**
2250 * manifest_new_ver - Create a new version of manifest from the old version
2251 * of source.
2252 * @tplg: topology context
2253 * @src: old version of manifest as a source
2254 * @manifest: latest version of manifest created from the source
2255 *
2256 * Support from vesion 4. Users need free the returned manifest manually.
2257 */
2258 static int manifest_new_ver(struct soc_tplg *tplg,
2259 struct snd_soc_tplg_manifest *src,
2260 struct snd_soc_tplg_manifest **manifest)
2261 {
2262 struct snd_soc_tplg_manifest *dest;
2263 struct snd_soc_tplg_manifest_v4 *src_v4;
2264
2265 *manifest = NULL;
2266
2267 if (src->size != sizeof(*src_v4)) {
2268 dev_err(tplg->dev, "ASoC: invalid manifest size\n");
2269 return -EINVAL;
2270 }
2271
2272 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2273
2274 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2275 dest = kzalloc(sizeof(*dest) + src_v4->priv.size, GFP_KERNEL);
2276 if (!dest)
2277 return -ENOMEM;
2278
2279 dest->size = sizeof(*dest); /* size of latest abi version */
2280 dest->control_elems = src_v4->control_elems;
2281 dest->widget_elems = src_v4->widget_elems;
2282 dest->graph_elems = src_v4->graph_elems;
2283 dest->pcm_elems = src_v4->pcm_elems;
2284 dest->dai_link_elems = src_v4->dai_link_elems;
2285 dest->priv.size = src_v4->priv.size;
2286 if (dest->priv.size)
2287 memcpy(dest->priv.data, src_v4->priv.data,
2288 src_v4->priv.size);
2289
2290 *manifest = dest;
2291 return 0;
2292 }
2293
2294 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2295 struct snd_soc_tplg_hdr *hdr)
2296 {
2297 struct snd_soc_tplg_manifest *manifest, *_manifest;
2298 bool abi_match;
2299 int err;
2300
2301 if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2302 return 0;
2303
2304 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2305
2306 /* check ABI version by size, create a new manifest if abi not match */
2307 if (manifest->size == sizeof(*manifest)) {
2308 abi_match = true;
2309 _manifest = manifest;
2310 } else {
2311 abi_match = false;
2312 err = manifest_new_ver(tplg, manifest, &_manifest);
2313 if (err < 0)
2314 return err;
2315 }
2316
2317 /* pass control to component driver for optional further init */
2318 if (tplg->comp && tplg->ops && tplg->ops->manifest)
2319 return tplg->ops->manifest(tplg->comp, _manifest);
2320
2321 if (!abi_match) /* free the duplicated one */
2322 kfree(_manifest);
2323
2324 return 0;
2325 }
2326
2327 /* validate header magic, size and type */
2328 static int soc_valid_header(struct soc_tplg *tplg,
2329 struct snd_soc_tplg_hdr *hdr)
2330 {
2331 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2332 return 0;
2333
2334 if (hdr->size != sizeof(*hdr)) {
2335 dev_err(tplg->dev,
2336 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2337 hdr->type, soc_tplg_get_hdr_offset(tplg),
2338 tplg->fw->size);
2339 return -EINVAL;
2340 }
2341
2342 /* big endian firmware objects not supported atm */
2343 if (hdr->magic == cpu_to_be32(SND_SOC_TPLG_MAGIC)) {
2344 dev_err(tplg->dev,
2345 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2346 tplg->pass, hdr->magic,
2347 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2348 return -EINVAL;
2349 }
2350
2351 if (hdr->magic != SND_SOC_TPLG_MAGIC) {
2352 dev_err(tplg->dev,
2353 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2354 tplg->pass, hdr->magic,
2355 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2356 return -EINVAL;
2357 }
2358
2359 /* Support ABI from version 4 */
2360 if (hdr->abi > SND_SOC_TPLG_ABI_VERSION
2361 || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) {
2362 dev_err(tplg->dev,
2363 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2364 tplg->pass, hdr->abi,
2365 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2366 tplg->fw->size);
2367 return -EINVAL;
2368 }
2369
2370 if (hdr->payload_size == 0) {
2371 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2372 soc_tplg_get_hdr_offset(tplg));
2373 return -EINVAL;
2374 }
2375
2376 if (tplg->pass == hdr->type)
2377 dev_dbg(tplg->dev,
2378 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2379 hdr->payload_size, hdr->type, hdr->version,
2380 hdr->vendor_type, tplg->pass);
2381
2382 return 1;
2383 }
2384
2385 /* check header type and call appropriate handler */
2386 static int soc_tplg_load_header(struct soc_tplg *tplg,
2387 struct snd_soc_tplg_hdr *hdr)
2388 {
2389 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2390
2391 /* check for matching ID */
2392 if (hdr->index != tplg->req_index &&
2393 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2394 return 0;
2395
2396 tplg->index = hdr->index;
2397
2398 switch (hdr->type) {
2399 case SND_SOC_TPLG_TYPE_MIXER:
2400 case SND_SOC_TPLG_TYPE_ENUM:
2401 case SND_SOC_TPLG_TYPE_BYTES:
2402 return soc_tplg_kcontrol_elems_load(tplg, hdr);
2403 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2404 return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2405 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2406 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2407 case SND_SOC_TPLG_TYPE_PCM:
2408 return soc_tplg_pcm_elems_load(tplg, hdr);
2409 case SND_SOC_TPLG_TYPE_DAI:
2410 return soc_tplg_dai_elems_load(tplg, hdr);
2411 case SND_SOC_TPLG_TYPE_DAI_LINK:
2412 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2413 /* physical link configurations */
2414 return soc_tplg_link_elems_load(tplg, hdr);
2415 case SND_SOC_TPLG_TYPE_MANIFEST:
2416 return soc_tplg_manifest_load(tplg, hdr);
2417 default:
2418 /* bespoke vendor data object */
2419 return soc_tplg_vendor_load(tplg, hdr);
2420 }
2421
2422 return 0;
2423 }
2424
2425 /* process the topology file headers */
2426 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2427 {
2428 struct snd_soc_tplg_hdr *hdr;
2429 int ret;
2430
2431 tplg->pass = SOC_TPLG_PASS_START;
2432
2433 /* process the header types from start to end */
2434 while (tplg->pass <= SOC_TPLG_PASS_END) {
2435
2436 tplg->hdr_pos = tplg->fw->data;
2437 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2438
2439 while (!soc_tplg_is_eof(tplg)) {
2440
2441 /* make sure header is valid before loading */
2442 ret = soc_valid_header(tplg, hdr);
2443 if (ret < 0)
2444 return ret;
2445 else if (ret == 0)
2446 break;
2447
2448 /* load the header object */
2449 ret = soc_tplg_load_header(tplg, hdr);
2450 if (ret < 0)
2451 return ret;
2452
2453 /* goto next header */
2454 tplg->hdr_pos += hdr->payload_size +
2455 sizeof(struct snd_soc_tplg_hdr);
2456 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2457 }
2458
2459 /* next data type pass */
2460 tplg->pass++;
2461 }
2462
2463 /* signal DAPM we are complete */
2464 ret = soc_tplg_dapm_complete(tplg);
2465 if (ret < 0)
2466 dev_err(tplg->dev,
2467 "ASoC: failed to initialise DAPM from Firmware\n");
2468
2469 return ret;
2470 }
2471
2472 static int soc_tplg_load(struct soc_tplg *tplg)
2473 {
2474 int ret;
2475
2476 ret = soc_tplg_process_headers(tplg);
2477 if (ret == 0)
2478 soc_tplg_complete(tplg);
2479
2480 return ret;
2481 }
2482
2483 /* load audio component topology from "firmware" file */
2484 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2485 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2486 {
2487 struct soc_tplg tplg;
2488
2489 /* setup parsing context */
2490 memset(&tplg, 0, sizeof(tplg));
2491 tplg.fw = fw;
2492 tplg.dev = comp->dev;
2493 tplg.comp = comp;
2494 tplg.ops = ops;
2495 tplg.req_index = id;
2496 tplg.io_ops = ops->io_ops;
2497 tplg.io_ops_count = ops->io_ops_count;
2498 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2499 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2500
2501 return soc_tplg_load(&tplg);
2502 }
2503 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2504
2505 /* remove this dynamic widget */
2506 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2507 {
2508 /* make sure we are a widget */
2509 if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2510 return;
2511
2512 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2513 }
2514 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2515
2516 /* remove all dynamic widgets from this DAPM context */
2517 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2518 u32 index)
2519 {
2520 struct snd_soc_dapm_widget *w, *next_w;
2521
2522 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2523
2524 /* make sure we are a widget with correct context */
2525 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2526 continue;
2527
2528 /* match ID */
2529 if (w->dobj.index != index &&
2530 w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2531 continue;
2532 /* check and free and dynamic widget kcontrols */
2533 snd_soc_tplg_widget_remove(w);
2534 snd_soc_dapm_free_widget(w);
2535 }
2536 snd_soc_dapm_reset_cache(dapm);
2537 }
2538 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2539
2540 /* remove dynamic controls from the component driver */
2541 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2542 {
2543 struct snd_soc_dobj *dobj, *next_dobj;
2544 int pass = SOC_TPLG_PASS_END;
2545
2546 /* process the header types from end to start */
2547 while (pass >= SOC_TPLG_PASS_START) {
2548
2549 /* remove mixer controls */
2550 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2551 list) {
2552
2553 /* match index */
2554 if (dobj->index != index &&
2555 dobj->index != SND_SOC_TPLG_INDEX_ALL)
2556 continue;
2557
2558 switch (dobj->type) {
2559 case SND_SOC_DOBJ_MIXER:
2560 remove_mixer(comp, dobj, pass);
2561 break;
2562 case SND_SOC_DOBJ_ENUM:
2563 remove_enum(comp, dobj, pass);
2564 break;
2565 case SND_SOC_DOBJ_BYTES:
2566 remove_bytes(comp, dobj, pass);
2567 break;
2568 case SND_SOC_DOBJ_WIDGET:
2569 remove_widget(comp, dobj, pass);
2570 break;
2571 case SND_SOC_DOBJ_PCM:
2572 remove_dai(comp, dobj, pass);
2573 break;
2574 case SND_SOC_DOBJ_DAI_LINK:
2575 remove_link(comp, dobj, pass);
2576 break;
2577 default:
2578 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2579 dobj->type);
2580 break;
2581 }
2582 }
2583 pass--;
2584 }
2585
2586 /* let caller know if FW can be freed when no objects are left */
2587 return !list_empty(&comp->dobj_list);
2588 }
2589 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
CRIS linux kernel tree