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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / sound / soc / soc-topology.c
blobd2ee6ad20e83478c030975f30fe155274917b48c
1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // soc-topology.c -- ALSA SoC Topology
4 //
5 // Copyright (C) 2012 Texas Instruments Inc.
6 // Copyright (C) 2015 Intel Corporation.
7 //
8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 // K, Mythri P <mythri.p.k@intel.com>
10 // Prusty, Subhransu S <subhransu.s.prusty@intel.com>
11 // B, Jayachandran <jayachandran.b@intel.com>
12 // Abdullah, Omair M <omair.m.abdullah@intel.com>
13 // Jin, Yao <yao.jin@intel.com>
14 // Lin, Mengdong <mengdong.lin@intel.com>
15 //
16 // Add support to read audio firmware topology alongside firmware text. The
17 // topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links,
18 // equalizers, firmware, coefficients etc.
19 //
20 // This file only manages the core ALSA and ASoC components, all other bespoke
21 // firmware topology data is passed to component drivers for bespoke handling.
22
23 #include <linux/kernel.h>
24 #include <linux/export.h>
25 #include <linux/list.h>
26 #include <linux/firmware.h>
27 #include <linux/slab.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
30 #include <sound/soc-topology.h>
31 #include <sound/tlv.h>
32
33 #define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */
34
35 /*
36 * We make several passes over the data (since it wont necessarily be ordered)
37 * and process objects in the following order. This guarantees the component
38 * drivers will be ready with any vendor data before the mixers and DAPM objects
39 * are loaded (that may make use of the vendor data).
40 */
41 #define SOC_TPLG_PASS_MANIFEST 0
42 #define SOC_TPLG_PASS_VENDOR 1
43 #define SOC_TPLG_PASS_MIXER 2
44 #define SOC_TPLG_PASS_WIDGET 3
45 #define SOC_TPLG_PASS_PCM_DAI 4
46 #define SOC_TPLG_PASS_GRAPH 5
47 #define SOC_TPLG_PASS_PINS 6
48 #define SOC_TPLG_PASS_BE_DAI 7
49 #define SOC_TPLG_PASS_LINK 8
50
51 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST
52 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK
53
54 /* topology context */
55 struct soc_tplg {
56 const struct firmware *fw;
57
58 /* runtime FW parsing */
59 const u8 *pos; /* read postion */
60 const u8 *hdr_pos; /* header position */
61 unsigned int pass; /* pass number */
62
63 /* component caller */
64 struct device *dev;
65 struct snd_soc_component *comp;
66 u32 index; /* current block index */
67 u32 req_index; /* required index, only loaded/free matching blocks */
68
69 /* vendor specific kcontrol operations */
70 const struct snd_soc_tplg_kcontrol_ops *io_ops;
71 int io_ops_count;
72
73 /* vendor specific bytes ext handlers, for TLV bytes controls */
74 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
75 int bytes_ext_ops_count;
76
77 /* optional fw loading callbacks to component drivers */
78 struct snd_soc_tplg_ops *ops;
79 };
80
81 static int soc_tplg_process_headers(struct soc_tplg *tplg);
82 static void soc_tplg_complete(struct soc_tplg *tplg);
83 static void soc_tplg_denum_remove_texts(struct soc_enum *se);
84 static void soc_tplg_denum_remove_values(struct soc_enum *se);
85
86 /* check we dont overflow the data for this control chunk */
87 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
88 unsigned int count, size_t bytes, const char *elem_type)
89 {
90 const u8 *end = tplg->pos + elem_size * count;
91
92 if (end > tplg->fw->data + tplg->fw->size) {
93 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
94 elem_type);
95 return -EINVAL;
96 }
97
98 /* check there is enough room in chunk for control.
99 extra bytes at the end of control are for vendor data here */
100 if (elem_size * count > bytes) {
101 dev_err(tplg->dev,
102 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
103 elem_type, count, elem_size, bytes);
104 return -EINVAL;
105 }
106
107 return 0;
108 }
109
110 static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
111 {
112 const u8 *end = tplg->hdr_pos;
113
114 if (end >= tplg->fw->data + tplg->fw->size)
115 return 1;
116 return 0;
117 }
118
119 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
120 {
121 return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
122 }
123
124 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
125 {
126 return (unsigned long)(tplg->pos - tplg->fw->data);
127 }
128
129 /* mapping of Kcontrol types and associated operations. */
130 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
131 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
132 snd_soc_put_volsw, snd_soc_info_volsw},
133 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
134 snd_soc_put_volsw_sx, NULL},
135 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
136 snd_soc_put_enum_double, snd_soc_info_enum_double},
137 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
138 snd_soc_put_enum_double, NULL},
139 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
140 snd_soc_bytes_put, snd_soc_bytes_info},
141 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
142 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
143 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
144 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
145 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
146 snd_soc_put_strobe, NULL},
147 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
148 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
149 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
150 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
151 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
152 snd_soc_dapm_put_enum_double, NULL},
153 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
154 snd_soc_dapm_put_enum_double, NULL},
155 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
156 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
157 };
158
159 struct soc_tplg_map {
160 int uid;
161 int kid;
162 };
163
164 /* mapping of widget types from UAPI IDs to kernel IDs */
165 static const struct soc_tplg_map dapm_map[] = {
166 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
167 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
168 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
169 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
170 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
171 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
172 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
173 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
174 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
175 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
176 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
177 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
178 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
179 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
180 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
181 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
182 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
183 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
184 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
185 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
186 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
187 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
188 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
189 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
190 };
191
192 static int tplc_chan_get_reg(struct soc_tplg *tplg,
193 struct snd_soc_tplg_channel *chan, int map)
194 {
195 int i;
196
197 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
198 if (le32_to_cpu(chan[i].id) == map)
199 return le32_to_cpu(chan[i].reg);
200 }
201
202 return -EINVAL;
203 }
204
205 static int tplc_chan_get_shift(struct soc_tplg *tplg,
206 struct snd_soc_tplg_channel *chan, int map)
207 {
208 int i;
209
210 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
211 if (le32_to_cpu(chan[i].id) == map)
212 return le32_to_cpu(chan[i].shift);
213 }
214
215 return -EINVAL;
216 }
217
218 static int get_widget_id(int tplg_type)
219 {
220 int i;
221
222 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
223 if (tplg_type == dapm_map[i].uid)
224 return dapm_map[i].kid;
225 }
226
227 return -EINVAL;
228 }
229
230 static inline void soc_bind_err(struct soc_tplg *tplg,
231 struct snd_soc_tplg_ctl_hdr *hdr, int index)
232 {
233 dev_err(tplg->dev,
234 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
235 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
236 soc_tplg_get_offset(tplg));
237 }
238
239 static inline void soc_control_err(struct soc_tplg *tplg,
240 struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
241 {
242 dev_err(tplg->dev,
243 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
244 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
245 soc_tplg_get_offset(tplg));
246 }
247
248 /* pass vendor data to component driver for processing */
249 static int soc_tplg_vendor_load_(struct soc_tplg *tplg,
250 struct snd_soc_tplg_hdr *hdr)
251 {
252 int ret = 0;
253
254 if (tplg->comp && tplg->ops && tplg->ops->vendor_load)
255 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
256 else {
257 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
258 hdr->vendor_type);
259 return -EINVAL;
260 }
261
262 if (ret < 0)
263 dev_err(tplg->dev,
264 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
265 soc_tplg_get_hdr_offset(tplg),
266 soc_tplg_get_hdr_offset(tplg),
267 hdr->type, hdr->vendor_type);
268 return ret;
269 }
270
271 /* pass vendor data to component driver for processing */
272 static int soc_tplg_vendor_load(struct soc_tplg *tplg,
273 struct snd_soc_tplg_hdr *hdr)
274 {
275 if (tplg->pass != SOC_TPLG_PASS_VENDOR)
276 return 0;
277
278 return soc_tplg_vendor_load_(tplg, hdr);
279 }
280
281 /* optionally pass new dynamic widget to component driver. This is mainly for
282 * external widgets where we can assign private data/ops */
283 static int soc_tplg_widget_load(struct soc_tplg *tplg,
284 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
285 {
286 if (tplg->comp && tplg->ops && tplg->ops->widget_load)
287 return tplg->ops->widget_load(tplg->comp, tplg->index, w,
288 tplg_w);
289
290 return 0;
291 }
292
293 /* optionally pass new dynamic widget to component driver. This is mainly for
294 * external widgets where we can assign private data/ops */
295 static int soc_tplg_widget_ready(struct soc_tplg *tplg,
296 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
297 {
298 if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
299 return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
300 tplg_w);
301
302 return 0;
303 }
304
305 /* pass DAI configurations to component driver for extra initialization */
306 static int soc_tplg_dai_load(struct soc_tplg *tplg,
307 struct snd_soc_dai_driver *dai_drv,
308 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
309 {
310 if (tplg->comp && tplg->ops && tplg->ops->dai_load)
311 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
312 pcm, dai);
313
314 return 0;
315 }
316
317 /* pass link configurations to component driver for extra initialization */
318 static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
319 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
320 {
321 if (tplg->comp && tplg->ops && tplg->ops->link_load)
322 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
323
324 return 0;
325 }
326
327 /* tell the component driver that all firmware has been loaded in this request */
328 static void soc_tplg_complete(struct soc_tplg *tplg)
329 {
330 if (tplg->comp && tplg->ops && tplg->ops->complete)
331 tplg->ops->complete(tplg->comp);
332 }
333
334 /* add a dynamic kcontrol */
335 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
336 const struct snd_kcontrol_new *control_new, const char *prefix,
337 void *data, struct snd_kcontrol **kcontrol)
338 {
339 int err;
340
341 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
342 if (*kcontrol == NULL) {
343 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
344 control_new->name);
345 return -ENOMEM;
346 }
347
348 err = snd_ctl_add(card, *kcontrol);
349 if (err < 0) {
350 dev_err(dev, "ASoC: Failed to add %s: %d\n",
351 control_new->name, err);
352 return err;
353 }
354
355 return 0;
356 }
357
358 /* add a dynamic kcontrol for component driver */
359 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
360 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
361 {
362 struct snd_soc_component *comp = tplg->comp;
363
364 return soc_tplg_add_dcontrol(comp->card->snd_card,
365 comp->dev, k, NULL, comp, kcontrol);
366 }
367
368 /* remove a mixer kcontrol */
369 static void remove_mixer(struct snd_soc_component *comp,
370 struct snd_soc_dobj *dobj, int pass)
371 {
372 struct snd_card *card = comp->card->snd_card;
373 struct soc_mixer_control *sm =
374 container_of(dobj, struct soc_mixer_control, dobj);
375 const unsigned int *p = NULL;
376
377 if (pass != SOC_TPLG_PASS_MIXER)
378 return;
379
380 if (dobj->ops && dobj->ops->control_unload)
381 dobj->ops->control_unload(comp, dobj);
382
383 if (dobj->control.kcontrol->tlv.p)
384 p = dobj->control.kcontrol->tlv.p;
385 snd_ctl_remove(card, dobj->control.kcontrol);
386 list_del(&dobj->list);
387 kfree(sm);
388 kfree(p);
389 }
390
391 /* remove an enum kcontrol */
392 static void remove_enum(struct snd_soc_component *comp,
393 struct snd_soc_dobj *dobj, int pass)
394 {
395 struct snd_card *card = comp->card->snd_card;
396 struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
397
398 if (pass != SOC_TPLG_PASS_MIXER)
399 return;
400
401 if (dobj->ops && dobj->ops->control_unload)
402 dobj->ops->control_unload(comp, dobj);
403
404 snd_ctl_remove(card, dobj->control.kcontrol);
405 list_del(&dobj->list);
406
407 soc_tplg_denum_remove_values(se);
408 soc_tplg_denum_remove_texts(se);
409 kfree(se);
410 }
411
412 /* remove a byte kcontrol */
413 static void remove_bytes(struct snd_soc_component *comp,
414 struct snd_soc_dobj *dobj, int pass)
415 {
416 struct snd_card *card = comp->card->snd_card;
417 struct soc_bytes_ext *sb =
418 container_of(dobj, struct soc_bytes_ext, dobj);
419
420 if (pass != SOC_TPLG_PASS_MIXER)
421 return;
422
423 if (dobj->ops && dobj->ops->control_unload)
424 dobj->ops->control_unload(comp, dobj);
425
426 snd_ctl_remove(card, dobj->control.kcontrol);
427 list_del(&dobj->list);
428 kfree(sb);
429 }
430
431 /* remove a route */
432 static void remove_route(struct snd_soc_component *comp,
433 struct snd_soc_dobj *dobj, int pass)
434 {
435 struct snd_soc_dapm_route *route =
436 container_of(dobj, struct snd_soc_dapm_route, dobj);
437
438 if (pass != SOC_TPLG_PASS_GRAPH)
439 return;
440
441 if (dobj->ops && dobj->ops->dapm_route_unload)
442 dobj->ops->dapm_route_unload(comp, dobj);
443
444 list_del(&dobj->list);
445 kfree(route);
446 }
447
448 /* remove a widget and it's kcontrols - routes must be removed first */
449 static void remove_widget(struct snd_soc_component *comp,
450 struct snd_soc_dobj *dobj, int pass)
451 {
452 struct snd_card *card = comp->card->snd_card;
453 struct snd_soc_dapm_widget *w =
454 container_of(dobj, struct snd_soc_dapm_widget, dobj);
455 int i;
456
457 if (pass != SOC_TPLG_PASS_WIDGET)
458 return;
459
460 if (dobj->ops && dobj->ops->widget_unload)
461 dobj->ops->widget_unload(comp, dobj);
462
463 if (!w->kcontrols)
464 goto free_news;
465
466 /*
467 * Dynamic Widgets either have 1..N enum kcontrols or mixers.
468 * The enum may either have an array of values or strings.
469 */
470 if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
471 /* enumerated widget mixer */
472 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
473 struct snd_kcontrol *kcontrol = w->kcontrols[i];
474 struct soc_enum *se =
475 (struct soc_enum *)kcontrol->private_value;
476
477 snd_ctl_remove(card, kcontrol);
478
479 /* free enum kcontrol's dvalues and dtexts */
480 soc_tplg_denum_remove_values(se);
481 soc_tplg_denum_remove_texts(se);
482
483 kfree(se);
484 kfree(w->kcontrol_news[i].name);
485 }
486 } else {
487 /* volume mixer or bytes controls */
488 for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
489 struct snd_kcontrol *kcontrol = w->kcontrols[i];
490
491 if (dobj->widget.kcontrol_type
492 == SND_SOC_TPLG_TYPE_MIXER)
493 kfree(kcontrol->tlv.p);
494
495 /* Private value is used as struct soc_mixer_control
496 * for volume mixers or soc_bytes_ext for bytes
497 * controls.
498 */
499 kfree((void *)kcontrol->private_value);
500 snd_ctl_remove(card, kcontrol);
501 kfree(w->kcontrol_news[i].name);
502 }
503 }
504
505 free_news:
506 kfree(w->kcontrol_news);
507
508 list_del(&dobj->list);
509
510 /* widget w is freed by soc-dapm.c */
511 }
512
513 /* remove DAI configurations */
514 static void remove_dai(struct snd_soc_component *comp,
515 struct snd_soc_dobj *dobj, int pass)
516 {
517 struct snd_soc_dai_driver *dai_drv =
518 container_of(dobj, struct snd_soc_dai_driver, dobj);
519 struct snd_soc_dai *dai;
520
521 if (pass != SOC_TPLG_PASS_PCM_DAI)
522 return;
523
524 if (dobj->ops && dobj->ops->dai_unload)
525 dobj->ops->dai_unload(comp, dobj);
526
527 for_each_component_dais(comp, dai)
528 if (dai->driver == dai_drv)
529 dai->driver = NULL;
530
531 kfree(dai_drv->playback.stream_name);
532 kfree(dai_drv->capture.stream_name);
533 kfree(dai_drv->name);
534 list_del(&dobj->list);
535 kfree(dai_drv);
536 }
537
538 /* remove link configurations */
539 static void remove_link(struct snd_soc_component *comp,
540 struct snd_soc_dobj *dobj, int pass)
541 {
542 struct snd_soc_dai_link *link =
543 container_of(dobj, struct snd_soc_dai_link, dobj);
544
545 if (pass != SOC_TPLG_PASS_PCM_DAI)
546 return;
547
548 if (dobj->ops && dobj->ops->link_unload)
549 dobj->ops->link_unload(comp, dobj);
550
551 list_del(&dobj->list);
552 snd_soc_remove_pcm_runtime(comp->card,
553 snd_soc_get_pcm_runtime(comp->card, link));
554
555 kfree(link->name);
556 kfree(link->stream_name);
557 kfree(link->cpus->dai_name);
558 kfree(link);
559 }
560
561 /* unload dai link */
562 static void remove_backend_link(struct snd_soc_component *comp,
563 struct snd_soc_dobj *dobj, int pass)
564 {
565 if (pass != SOC_TPLG_PASS_LINK)
566 return;
567
568 if (dobj->ops && dobj->ops->link_unload)
569 dobj->ops->link_unload(comp, dobj);
570
571 /*
572 * We don't free the link here as what remove_link() do since BE
573 * links are not allocated by topology.
574 * We however need to reset the dobj type to its initial values
575 */
576 dobj->type = SND_SOC_DOBJ_NONE;
577 list_del(&dobj->list);
578 }
579
580 /* bind a kcontrol to it's IO handlers */
581 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
582 struct snd_kcontrol_new *k,
583 const struct soc_tplg *tplg)
584 {
585 const struct snd_soc_tplg_kcontrol_ops *ops;
586 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
587 int num_ops, i;
588
589 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
590 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
591 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
592 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
593 struct soc_bytes_ext *sbe;
594 struct snd_soc_tplg_bytes_control *be;
595
596 sbe = (struct soc_bytes_ext *)k->private_value;
597 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
598
599 /* TLV bytes controls need standard kcontrol info handler,
600 * TLV callback and extended put/get handlers.
601 */
602 k->info = snd_soc_bytes_info_ext;
603 k->tlv.c = snd_soc_bytes_tlv_callback;
604
605 ext_ops = tplg->bytes_ext_ops;
606 num_ops = tplg->bytes_ext_ops_count;
607 for (i = 0; i < num_ops; i++) {
608 if (!sbe->put &&
609 ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
610 sbe->put = ext_ops[i].put;
611 if (!sbe->get &&
612 ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
613 sbe->get = ext_ops[i].get;
614 }
615
616 if (sbe->put && sbe->get)
617 return 0;
618 else
619 return -EINVAL;
620 }
621
622 /* try and map vendor specific kcontrol handlers first */
623 ops = tplg->io_ops;
624 num_ops = tplg->io_ops_count;
625 for (i = 0; i < num_ops; i++) {
626
627 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
628 k->put = ops[i].put;
629 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
630 k->get = ops[i].get;
631 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
632 k->info = ops[i].info;
633 }
634
635 /* vendor specific handlers found ? */
636 if (k->put && k->get && k->info)
637 return 0;
638
639 /* none found so try standard kcontrol handlers */
640 ops = io_ops;
641 num_ops = ARRAY_SIZE(io_ops);
642 for (i = 0; i < num_ops; i++) {
643
644 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
645 k->put = ops[i].put;
646 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
647 k->get = ops[i].get;
648 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
649 k->info = ops[i].info;
650 }
651
652 /* standard handlers found ? */
653 if (k->put && k->get && k->info)
654 return 0;
655
656 /* nothing to bind */
657 return -EINVAL;
658 }
659
660 /* bind a widgets to it's evnt handlers */
661 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
662 const struct snd_soc_tplg_widget_events *events,
663 int num_events, u16 event_type)
664 {
665 int i;
666
667 w->event = NULL;
668
669 for (i = 0; i < num_events; i++) {
670 if (event_type == events[i].type) {
671
672 /* found - so assign event */
673 w->event = events[i].event_handler;
674 return 0;
675 }
676 }
677
678 /* not found */
679 return -EINVAL;
680 }
681 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
682
683 /* optionally pass new dynamic kcontrol to component driver. */
684 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
685 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
686 {
687 if (tplg->comp && tplg->ops && tplg->ops->control_load)
688 return tplg->ops->control_load(tplg->comp, tplg->index, k,
689 hdr);
690
691 return 0;
692 }
693
694
695 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
696 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
697 {
698 unsigned int item_len = 2 * sizeof(unsigned int);
699 unsigned int *p;
700
701 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
702 if (!p)
703 return -ENOMEM;
704
705 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
706 p[1] = item_len;
707 p[2] = le32_to_cpu(scale->min);
708 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
709 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
710
711 kc->tlv.p = (void *)p;
712 return 0;
713 }
714
715 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
716 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
717 {
718 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
719 u32 access = le32_to_cpu(tc->access);
720
721 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
722 return 0;
723
724 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
725 tplg_tlv = &tc->tlv;
726 switch (le32_to_cpu(tplg_tlv->type)) {
727 case SNDRV_CTL_TLVT_DB_SCALE:
728 return soc_tplg_create_tlv_db_scale(tplg, kc,
729 &tplg_tlv->scale);
730
731 /* TODO: add support for other TLV types */
732 default:
733 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
734 tplg_tlv->type);
735 return -EINVAL;
736 }
737 }
738
739 return 0;
740 }
741
742 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
743 struct snd_kcontrol_new *kc)
744 {
745 kfree(kc->tlv.p);
746 }
747
748 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
749 size_t size)
750 {
751 struct snd_soc_tplg_bytes_control *be;
752 struct soc_bytes_ext *sbe;
753 struct snd_kcontrol_new kc;
754 int i, err;
755
756 if (soc_tplg_check_elem_count(tplg,
757 sizeof(struct snd_soc_tplg_bytes_control), count,
758 size, "mixer bytes")) {
759 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
760 count);
761 return -EINVAL;
762 }
763
764 for (i = 0; i < count; i++) {
765 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
766
767 /* validate kcontrol */
768 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
769 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
770 return -EINVAL;
771
772 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
773 if (sbe == NULL)
774 return -ENOMEM;
775
776 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
777 le32_to_cpu(be->priv.size));
778
779 dev_dbg(tplg->dev,
780 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
781 be->hdr.name, be->hdr.access);
782
783 memset(&kc, 0, sizeof(kc));
784 kc.name = be->hdr.name;
785 kc.private_value = (long)sbe;
786 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
787 kc.access = le32_to_cpu(be->hdr.access);
788
789 sbe->max = le32_to_cpu(be->max);
790 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
791 sbe->dobj.ops = tplg->ops;
792 INIT_LIST_HEAD(&sbe->dobj.list);
793
794 /* map io handlers */
795 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
796 if (err) {
797 soc_control_err(tplg, &be->hdr, be->hdr.name);
798 kfree(sbe);
799 continue;
800 }
801
802 /* pass control to driver for optional further init */
803 err = soc_tplg_init_kcontrol(tplg, &kc,
804 (struct snd_soc_tplg_ctl_hdr *)be);
805 if (err < 0) {
806 dev_err(tplg->dev, "ASoC: failed to init %s\n",
807 be->hdr.name);
808 kfree(sbe);
809 continue;
810 }
811
812 /* register control here */
813 err = soc_tplg_add_kcontrol(tplg, &kc,
814 &sbe->dobj.control.kcontrol);
815 if (err < 0) {
816 dev_err(tplg->dev, "ASoC: failed to add %s\n",
817 be->hdr.name);
818 kfree(sbe);
819 continue;
820 }
821
822 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
823 }
824 return 0;
825
826 }
827
828 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
829 size_t size)
830 {
831 struct snd_soc_tplg_mixer_control *mc;
832 struct soc_mixer_control *sm;
833 struct snd_kcontrol_new kc;
834 int i, err;
835
836 if (soc_tplg_check_elem_count(tplg,
837 sizeof(struct snd_soc_tplg_mixer_control),
838 count, size, "mixers")) {
839
840 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
841 count);
842 return -EINVAL;
843 }
844
845 for (i = 0; i < count; i++) {
846 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
847
848 /* validate kcontrol */
849 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
850 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
851 return -EINVAL;
852
853 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
854 if (sm == NULL)
855 return -ENOMEM;
856 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
857 le32_to_cpu(mc->priv.size));
858
859 dev_dbg(tplg->dev,
860 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
861 mc->hdr.name, mc->hdr.access);
862
863 memset(&kc, 0, sizeof(kc));
864 kc.name = mc->hdr.name;
865 kc.private_value = (long)sm;
866 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
867 kc.access = le32_to_cpu(mc->hdr.access);
868
869 /* we only support FL/FR channel mapping atm */
870 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
871 SNDRV_CHMAP_FL);
872 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
873 SNDRV_CHMAP_FR);
874 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
875 SNDRV_CHMAP_FL);
876 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
877 SNDRV_CHMAP_FR);
878
879 sm->max = le32_to_cpu(mc->max);
880 sm->min = le32_to_cpu(mc->min);
881 sm->invert = le32_to_cpu(mc->invert);
882 sm->platform_max = le32_to_cpu(mc->platform_max);
883 sm->dobj.index = tplg->index;
884 sm->dobj.ops = tplg->ops;
885 sm->dobj.type = SND_SOC_DOBJ_MIXER;
886 INIT_LIST_HEAD(&sm->dobj.list);
887
888 /* map io handlers */
889 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
890 if (err) {
891 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
892 kfree(sm);
893 continue;
894 }
895
896 /* create any TLV data */
897 soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
898
899 /* pass control to driver for optional further init */
900 err = soc_tplg_init_kcontrol(tplg, &kc,
901 (struct snd_soc_tplg_ctl_hdr *) mc);
902 if (err < 0) {
903 dev_err(tplg->dev, "ASoC: failed to init %s\n",
904 mc->hdr.name);
905 soc_tplg_free_tlv(tplg, &kc);
906 kfree(sm);
907 continue;
908 }
909
910 /* register control here */
911 err = soc_tplg_add_kcontrol(tplg, &kc,
912 &sm->dobj.control.kcontrol);
913 if (err < 0) {
914 dev_err(tplg->dev, "ASoC: failed to add %s\n",
915 mc->hdr.name);
916 soc_tplg_free_tlv(tplg, &kc);
917 kfree(sm);
918 continue;
919 }
920
921 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
922 }
923
924 return 0;
925 }
926
927 static int soc_tplg_denum_create_texts(struct soc_enum *se,
928 struct snd_soc_tplg_enum_control *ec)
929 {
930 int i, ret;
931
932 se->dobj.control.dtexts =
933 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
934 if (se->dobj.control.dtexts == NULL)
935 return -ENOMEM;
936
937 for (i = 0; i < le32_to_cpu(ec->items); i++) {
938
939 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
940 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
941 ret = -EINVAL;
942 goto err;
943 }
944
945 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
946 if (!se->dobj.control.dtexts[i]) {
947 ret = -ENOMEM;
948 goto err;
949 }
950 }
951
952 se->items = le32_to_cpu(ec->items);
953 se->texts = (const char * const *)se->dobj.control.dtexts;
954 return 0;
955
956 err:
957 se->items = i;
958 soc_tplg_denum_remove_texts(se);
959 return ret;
960 }
961
962 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
963 {
964 int i = se->items;
965
966 for (--i; i >= 0; i--)
967 kfree(se->dobj.control.dtexts[i]);
968 kfree(se->dobj.control.dtexts);
969 }
970
971 static int soc_tplg_denum_create_values(struct soc_enum *se,
972 struct snd_soc_tplg_enum_control *ec)
973 {
974 int i;
975
976 if (le32_to_cpu(ec->items) > sizeof(*ec->values))
977 return -EINVAL;
978
979 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
980 sizeof(u32),
981 GFP_KERNEL);
982 if (!se->dobj.control.dvalues)
983 return -ENOMEM;
984
985 /* convert from little-endian */
986 for (i = 0; i < le32_to_cpu(ec->items); i++) {
987 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
988 }
989
990 return 0;
991 }
992
993 static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
994 {
995 kfree(se->dobj.control.dvalues);
996 }
997
998 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
999 size_t size)
1000 {
1001 struct snd_soc_tplg_enum_control *ec;
1002 struct soc_enum *se;
1003 struct snd_kcontrol_new kc;
1004 int i, ret, err;
1005
1006 if (soc_tplg_check_elem_count(tplg,
1007 sizeof(struct snd_soc_tplg_enum_control),
1008 count, size, "enums")) {
1009
1010 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1011 count);
1012 return -EINVAL;
1013 }
1014
1015 for (i = 0; i < count; i++) {
1016 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1017
1018 /* validate kcontrol */
1019 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1020 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1021 return -EINVAL;
1022
1023 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1024 if (se == NULL)
1025 return -ENOMEM;
1026
1027 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1028 le32_to_cpu(ec->priv.size));
1029
1030 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1031 ec->hdr.name, ec->items);
1032
1033 memset(&kc, 0, sizeof(kc));
1034 kc.name = ec->hdr.name;
1035 kc.private_value = (long)se;
1036 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1037 kc.access = le32_to_cpu(ec->hdr.access);
1038
1039 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1040 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1041 SNDRV_CHMAP_FL);
1042 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1043 SNDRV_CHMAP_FL);
1044
1045 se->mask = le32_to_cpu(ec->mask);
1046 se->dobj.index = tplg->index;
1047 se->dobj.type = SND_SOC_DOBJ_ENUM;
1048 se->dobj.ops = tplg->ops;
1049 INIT_LIST_HEAD(&se->dobj.list);
1050
1051 switch (le32_to_cpu(ec->hdr.ops.info)) {
1052 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1053 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1054 err = soc_tplg_denum_create_values(se, ec);
1055 if (err < 0) {
1056 dev_err(tplg->dev,
1057 "ASoC: could not create values for %s\n",
1058 ec->hdr.name);
1059 kfree(se);
1060 continue;
1061 }
1062 /* fall through */
1063 case SND_SOC_TPLG_CTL_ENUM:
1064 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1065 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1066 err = soc_tplg_denum_create_texts(se, ec);
1067 if (err < 0) {
1068 dev_err(tplg->dev,
1069 "ASoC: could not create texts for %s\n",
1070 ec->hdr.name);
1071 kfree(se);
1072 continue;
1073 }
1074 break;
1075 default:
1076 dev_err(tplg->dev,
1077 "ASoC: invalid enum control type %d for %s\n",
1078 ec->hdr.ops.info, ec->hdr.name);
1079 kfree(se);
1080 continue;
1081 }
1082
1083 /* map io handlers */
1084 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1085 if (err) {
1086 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1087 kfree(se);
1088 continue;
1089 }
1090
1091 /* pass control to driver for optional further init */
1092 err = soc_tplg_init_kcontrol(tplg, &kc,
1093 (struct snd_soc_tplg_ctl_hdr *) ec);
1094 if (err < 0) {
1095 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1096 ec->hdr.name);
1097 kfree(se);
1098 continue;
1099 }
1100
1101 /* register control here */
1102 ret = soc_tplg_add_kcontrol(tplg,
1103 &kc, &se->dobj.control.kcontrol);
1104 if (ret < 0) {
1105 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1106 ec->hdr.name);
1107 kfree(se);
1108 continue;
1109 }
1110
1111 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1112 }
1113
1114 return 0;
1115 }
1116
1117 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1118 struct snd_soc_tplg_hdr *hdr)
1119 {
1120 struct snd_soc_tplg_ctl_hdr *control_hdr;
1121 int i;
1122
1123 if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1124 tplg->pos += le32_to_cpu(hdr->size) +
1125 le32_to_cpu(hdr->payload_size);
1126 return 0;
1127 }
1128
1129 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1130 soc_tplg_get_offset(tplg));
1131
1132 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1133
1134 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1135
1136 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1137 dev_err(tplg->dev, "ASoC: invalid control size\n");
1138 return -EINVAL;
1139 }
1140
1141 switch (le32_to_cpu(control_hdr->ops.info)) {
1142 case SND_SOC_TPLG_CTL_VOLSW:
1143 case SND_SOC_TPLG_CTL_STROBE:
1144 case SND_SOC_TPLG_CTL_VOLSW_SX:
1145 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1146 case SND_SOC_TPLG_CTL_RANGE:
1147 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1148 case SND_SOC_TPLG_DAPM_CTL_PIN:
1149 soc_tplg_dmixer_create(tplg, 1,
1150 le32_to_cpu(hdr->payload_size));
1151 break;
1152 case SND_SOC_TPLG_CTL_ENUM:
1153 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1154 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1155 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1156 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1157 soc_tplg_denum_create(tplg, 1,
1158 le32_to_cpu(hdr->payload_size));
1159 break;
1160 case SND_SOC_TPLG_CTL_BYTES:
1161 soc_tplg_dbytes_create(tplg, 1,
1162 le32_to_cpu(hdr->payload_size));
1163 break;
1164 default:
1165 soc_bind_err(tplg, control_hdr, i);
1166 return -EINVAL;
1167 }
1168 }
1169
1170 return 0;
1171 }
1172
1173 /* optionally pass new dynamic kcontrol to component driver. */
1174 static int soc_tplg_add_route(struct soc_tplg *tplg,
1175 struct snd_soc_dapm_route *route)
1176 {
1177 if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
1178 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1179 route);
1180
1181 return 0;
1182 }
1183
1184 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1185 struct snd_soc_tplg_hdr *hdr)
1186 {
1187 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1188 struct snd_soc_tplg_dapm_graph_elem *elem;
1189 struct snd_soc_dapm_route **routes;
1190 int count, i, j;
1191 int ret = 0;
1192
1193 count = le32_to_cpu(hdr->count);
1194
1195 if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1196 tplg->pos +=
1197 le32_to_cpu(hdr->size) +
1198 le32_to_cpu(hdr->payload_size);
1199
1200 return 0;
1201 }
1202
1203 if (soc_tplg_check_elem_count(tplg,
1204 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1205 count, le32_to_cpu(hdr->payload_size), "graph")) {
1206
1207 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1208 count);
1209 return -EINVAL;
1210 }
1211
1212 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1213 hdr->index);
1214
1215 /* allocate memory for pointer to array of dapm routes */
1216 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1217 GFP_KERNEL);
1218 if (!routes)
1219 return -ENOMEM;
1220
1221 /*
1222 * allocate memory for each dapm route in the array.
1223 * This needs to be done individually so that
1224 * each route can be freed when it is removed in remove_route().
1225 */
1226 for (i = 0; i < count; i++) {
1227 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1228 if (!routes[i]) {
1229 /* free previously allocated memory */
1230 for (j = 0; j < i; j++)
1231 kfree(routes[j]);
1232
1233 kfree(routes);
1234 return -ENOMEM;
1235 }
1236 }
1237
1238 for (i = 0; i < count; i++) {
1239 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1240 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1241
1242 /* validate routes */
1243 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1244 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1245 ret = -EINVAL;
1246 break;
1247 }
1248 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1249 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1250 ret = -EINVAL;
1251 break;
1252 }
1253 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1254 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1255 ret = -EINVAL;
1256 break;
1257 }
1258
1259 routes[i]->source = elem->source;
1260 routes[i]->sink = elem->sink;
1261
1262 /* set to NULL atm for tplg users */
1263 routes[i]->connected = NULL;
1264 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1265 routes[i]->control = NULL;
1266 else
1267 routes[i]->control = elem->control;
1268
1269 /* add route dobj to dobj_list */
1270 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1271 routes[i]->dobj.ops = tplg->ops;
1272 routes[i]->dobj.index = tplg->index;
1273 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1274
1275 soc_tplg_add_route(tplg, routes[i]);
1276
1277 /* add route, but keep going if some fail */
1278 snd_soc_dapm_add_routes(dapm, routes[i], 1);
1279 }
1280
1281 /* free memory allocated for all dapm routes in case of error */
1282 if (ret < 0)
1283 for (i = 0; i < count ; i++)
1284 kfree(routes[i]);
1285
1286 /*
1287 * free pointer to array of dapm routes as this is no longer needed.
1288 * The memory allocated for each dapm route will be freed
1289 * when it is removed in remove_route().
1290 */
1291 kfree(routes);
1292
1293 return ret;
1294 }
1295
1296 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1297 struct soc_tplg *tplg, int num_kcontrols)
1298 {
1299 struct snd_kcontrol_new *kc;
1300 struct soc_mixer_control *sm;
1301 struct snd_soc_tplg_mixer_control *mc;
1302 int i, 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 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1310
1311 /* validate kcontrol */
1312 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1313 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1314 goto err_sm;
1315
1316 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1317 if (sm == NULL)
1318 goto err_sm;
1319
1320 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1321 le32_to_cpu(mc->priv.size));
1322
1323 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1324 mc->hdr.name, i);
1325
1326 kc[i].private_value = (long)sm;
1327 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1328 if (kc[i].name == NULL)
1329 goto err_sm;
1330 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1331 kc[i].access = le32_to_cpu(mc->hdr.access);
1332
1333 /* we only support FL/FR channel mapping atm */
1334 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1335 SNDRV_CHMAP_FL);
1336 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1337 SNDRV_CHMAP_FR);
1338 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1339 SNDRV_CHMAP_FL);
1340 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1341 SNDRV_CHMAP_FR);
1342
1343 sm->max = le32_to_cpu(mc->max);
1344 sm->min = le32_to_cpu(mc->min);
1345 sm->invert = le32_to_cpu(mc->invert);
1346 sm->platform_max = le32_to_cpu(mc->platform_max);
1347 sm->dobj.index = tplg->index;
1348 INIT_LIST_HEAD(&sm->dobj.list);
1349
1350 /* map io handlers */
1351 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1352 if (err) {
1353 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1354 goto err_sm;
1355 }
1356
1357 /* create any TLV data */
1358 soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1359
1360 /* pass control to driver for optional further init */
1361 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1362 (struct snd_soc_tplg_ctl_hdr *)mc);
1363 if (err < 0) {
1364 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1365 mc->hdr.name);
1366 soc_tplg_free_tlv(tplg, &kc[i]);
1367 goto err_sm;
1368 }
1369 }
1370 return kc;
1371
1372 err_sm:
1373 for (; i >= 0; i--) {
1374 sm = (struct soc_mixer_control *)kc[i].private_value;
1375 kfree(sm);
1376 kfree(kc[i].name);
1377 }
1378 kfree(kc);
1379
1380 return NULL;
1381 }
1382
1383 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1384 struct soc_tplg *tplg, int num_kcontrols)
1385 {
1386 struct snd_kcontrol_new *kc;
1387 struct snd_soc_tplg_enum_control *ec;
1388 struct soc_enum *se;
1389 int i, err;
1390
1391 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1392 if (kc == NULL)
1393 return NULL;
1394
1395 for (i = 0; i < num_kcontrols; i++) {
1396 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1397 /* validate kcontrol */
1398 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1399 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1400 goto err_se;
1401
1402 se = kzalloc(sizeof(*se), GFP_KERNEL);
1403 if (se == NULL)
1404 goto err_se;
1405
1406 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1407 le32_to_cpu(ec->priv.size));
1408
1409 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1410 ec->hdr.name);
1411
1412 kc[i].private_value = (long)se;
1413 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1414 if (kc[i].name == NULL)
1415 goto err_se;
1416 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1417 kc[i].access = le32_to_cpu(ec->hdr.access);
1418
1419 /* we only support FL/FR channel mapping atm */
1420 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1421 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1422 SNDRV_CHMAP_FL);
1423 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1424 SNDRV_CHMAP_FR);
1425
1426 se->items = le32_to_cpu(ec->items);
1427 se->mask = le32_to_cpu(ec->mask);
1428 se->dobj.index = tplg->index;
1429
1430 switch (le32_to_cpu(ec->hdr.ops.info)) {
1431 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1432 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1433 err = soc_tplg_denum_create_values(se, ec);
1434 if (err < 0) {
1435 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1436 ec->hdr.name);
1437 goto err_se;
1438 }
1439 /* fall through */
1440 case SND_SOC_TPLG_CTL_ENUM:
1441 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1442 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1443 err = soc_tplg_denum_create_texts(se, ec);
1444 if (err < 0) {
1445 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1446 ec->hdr.name);
1447 goto err_se;
1448 }
1449 break;
1450 default:
1451 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1452 ec->hdr.ops.info, ec->hdr.name);
1453 goto err_se;
1454 }
1455
1456 /* map io handlers */
1457 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1458 if (err) {
1459 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1460 goto err_se;
1461 }
1462
1463 /* pass control to driver for optional further init */
1464 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1465 (struct snd_soc_tplg_ctl_hdr *)ec);
1466 if (err < 0) {
1467 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1468 ec->hdr.name);
1469 goto err_se;
1470 }
1471 }
1472
1473 return kc;
1474
1475 err_se:
1476 for (; i >= 0; i--) {
1477 /* free values and texts */
1478 se = (struct soc_enum *)kc[i].private_value;
1479
1480 if (se) {
1481 soc_tplg_denum_remove_values(se);
1482 soc_tplg_denum_remove_texts(se);
1483 }
1484
1485 kfree(se);
1486 kfree(kc[i].name);
1487 }
1488 kfree(kc);
1489
1490 return NULL;
1491 }
1492
1493 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1494 struct soc_tplg *tplg, int num_kcontrols)
1495 {
1496 struct snd_soc_tplg_bytes_control *be;
1497 struct soc_bytes_ext *sbe;
1498 struct snd_kcontrol_new *kc;
1499 int i, err;
1500
1501 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1502 if (!kc)
1503 return NULL;
1504
1505 for (i = 0; i < num_kcontrols; i++) {
1506 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1507
1508 /* validate kcontrol */
1509 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1510 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1511 goto err_sbe;
1512
1513 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1514 if (sbe == NULL)
1515 goto err_sbe;
1516
1517 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1518 le32_to_cpu(be->priv.size));
1519
1520 dev_dbg(tplg->dev,
1521 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1522 be->hdr.name, be->hdr.access);
1523
1524 kc[i].private_value = (long)sbe;
1525 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1526 if (kc[i].name == NULL)
1527 goto err_sbe;
1528 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1529 kc[i].access = le32_to_cpu(be->hdr.access);
1530
1531 sbe->max = le32_to_cpu(be->max);
1532 INIT_LIST_HEAD(&sbe->dobj.list);
1533
1534 /* map standard io handlers and check for external handlers */
1535 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1536 if (err) {
1537 soc_control_err(tplg, &be->hdr, be->hdr.name);
1538 goto err_sbe;
1539 }
1540
1541 /* pass control to driver for optional further init */
1542 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1543 (struct snd_soc_tplg_ctl_hdr *)be);
1544 if (err < 0) {
1545 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1546 be->hdr.name);
1547 goto err_sbe;
1548 }
1549 }
1550
1551 return kc;
1552
1553 err_sbe:
1554 for (; i >= 0; i--) {
1555 sbe = (struct soc_bytes_ext *)kc[i].private_value;
1556 kfree(sbe);
1557 kfree(kc[i].name);
1558 }
1559 kfree(kc);
1560
1561 return NULL;
1562 }
1563
1564 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1565 struct snd_soc_tplg_dapm_widget *w)
1566 {
1567 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1568 struct snd_soc_dapm_widget template, *widget;
1569 struct snd_soc_tplg_ctl_hdr *control_hdr;
1570 struct snd_soc_card *card = tplg->comp->card;
1571 unsigned int kcontrol_type;
1572 int ret = 0;
1573
1574 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1575 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1576 return -EINVAL;
1577 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1578 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1579 return -EINVAL;
1580
1581 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1582 w->name, w->id);
1583
1584 memset(&template, 0, sizeof(template));
1585
1586 /* map user to kernel widget ID */
1587 template.id = get_widget_id(le32_to_cpu(w->id));
1588 if ((int)template.id < 0)
1589 return template.id;
1590
1591 /* strings are allocated here, but used and freed by the widget */
1592 template.name = kstrdup(w->name, GFP_KERNEL);
1593 if (!template.name)
1594 return -ENOMEM;
1595 template.sname = kstrdup(w->sname, GFP_KERNEL);
1596 if (!template.sname) {
1597 ret = -ENOMEM;
1598 goto err;
1599 }
1600 template.reg = le32_to_cpu(w->reg);
1601 template.shift = le32_to_cpu(w->shift);
1602 template.mask = le32_to_cpu(w->mask);
1603 template.subseq = le32_to_cpu(w->subseq);
1604 template.on_val = w->invert ? 0 : 1;
1605 template.off_val = w->invert ? 1 : 0;
1606 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1607 template.event_flags = le16_to_cpu(w->event_flags);
1608 template.dobj.index = tplg->index;
1609
1610 tplg->pos +=
1611 (sizeof(struct snd_soc_tplg_dapm_widget) +
1612 le32_to_cpu(w->priv.size));
1613
1614 if (w->num_kcontrols == 0) {
1615 kcontrol_type = 0;
1616 template.num_kcontrols = 0;
1617 goto widget;
1618 }
1619
1620 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1621 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1622 w->name, w->num_kcontrols, control_hdr->type);
1623
1624 switch (le32_to_cpu(control_hdr->ops.info)) {
1625 case SND_SOC_TPLG_CTL_VOLSW:
1626 case SND_SOC_TPLG_CTL_STROBE:
1627 case SND_SOC_TPLG_CTL_VOLSW_SX:
1628 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1629 case SND_SOC_TPLG_CTL_RANGE:
1630 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1631 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1632 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1633 template.kcontrol_news =
1634 soc_tplg_dapm_widget_dmixer_create(tplg,
1635 template.num_kcontrols);
1636 if (!template.kcontrol_news) {
1637 ret = -ENOMEM;
1638 goto hdr_err;
1639 }
1640 break;
1641 case SND_SOC_TPLG_CTL_ENUM:
1642 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1643 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1644 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1645 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1646 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1647 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1648 template.kcontrol_news =
1649 soc_tplg_dapm_widget_denum_create(tplg,
1650 template.num_kcontrols);
1651 if (!template.kcontrol_news) {
1652 ret = -ENOMEM;
1653 goto hdr_err;
1654 }
1655 break;
1656 case SND_SOC_TPLG_CTL_BYTES:
1657 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1658 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1659 template.kcontrol_news =
1660 soc_tplg_dapm_widget_dbytes_create(tplg,
1661 template.num_kcontrols);
1662 if (!template.kcontrol_news) {
1663 ret = -ENOMEM;
1664 goto hdr_err;
1665 }
1666 break;
1667 default:
1668 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1669 control_hdr->ops.get, control_hdr->ops.put,
1670 le32_to_cpu(control_hdr->ops.info));
1671 ret = -EINVAL;
1672 goto hdr_err;
1673 }
1674
1675 widget:
1676 ret = soc_tplg_widget_load(tplg, &template, w);
1677 if (ret < 0)
1678 goto hdr_err;
1679
1680 /* card dapm mutex is held by the core if we are loading topology
1681 * data during sound card init. */
1682 if (card->instantiated)
1683 widget = snd_soc_dapm_new_control(dapm, &template);
1684 else
1685 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1686 if (IS_ERR(widget)) {
1687 ret = PTR_ERR(widget);
1688 goto hdr_err;
1689 }
1690
1691 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1692 widget->dobj.widget.kcontrol_type = kcontrol_type;
1693 widget->dobj.ops = tplg->ops;
1694 widget->dobj.index = tplg->index;
1695 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1696
1697 ret = soc_tplg_widget_ready(tplg, widget, w);
1698 if (ret < 0)
1699 goto ready_err;
1700
1701 kfree(template.sname);
1702 kfree(template.name);
1703
1704 return 0;
1705
1706 ready_err:
1707 snd_soc_tplg_widget_remove(widget);
1708 snd_soc_dapm_free_widget(widget);
1709 hdr_err:
1710 kfree(template.sname);
1711 err:
1712 kfree(template.name);
1713 return ret;
1714 }
1715
1716 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1717 struct snd_soc_tplg_hdr *hdr)
1718 {
1719 struct snd_soc_tplg_dapm_widget *widget;
1720 int ret, count, i;
1721
1722 count = le32_to_cpu(hdr->count);
1723
1724 if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1725 return 0;
1726
1727 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1728
1729 for (i = 0; i < count; i++) {
1730 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1731 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1732 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1733 return -EINVAL;
1734 }
1735
1736 ret = soc_tplg_dapm_widget_create(tplg, widget);
1737 if (ret < 0) {
1738 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1739 widget->name);
1740 return ret;
1741 }
1742 }
1743
1744 return 0;
1745 }
1746
1747 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1748 {
1749 struct snd_soc_card *card = tplg->comp->card;
1750 int ret;
1751
1752 /* Card might not have been registered at this point.
1753 * If so, just return success.
1754 */
1755 if (!card || !card->instantiated) {
1756 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1757 " widget card binding deferred\n");
1758 return 0;
1759 }
1760
1761 ret = snd_soc_dapm_new_widgets(card);
1762 if (ret < 0)
1763 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1764 ret);
1765
1766 return 0;
1767 }
1768
1769 static void set_stream_info(struct snd_soc_pcm_stream *stream,
1770 struct snd_soc_tplg_stream_caps *caps)
1771 {
1772 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1773 stream->channels_min = le32_to_cpu(caps->channels_min);
1774 stream->channels_max = le32_to_cpu(caps->channels_max);
1775 stream->rates = le32_to_cpu(caps->rates);
1776 stream->rate_min = le32_to_cpu(caps->rate_min);
1777 stream->rate_max = le32_to_cpu(caps->rate_max);
1778 stream->formats = le64_to_cpu(caps->formats);
1779 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1780 }
1781
1782 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1783 unsigned int flag_mask, unsigned int flags)
1784 {
1785 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1786 dai_drv->symmetric_rates =
1787 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1788
1789 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1790 dai_drv->symmetric_channels =
1791 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1792 1 : 0;
1793
1794 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1795 dai_drv->symmetric_samplebits =
1796 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1797 1 : 0;
1798 }
1799
1800 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1801 struct snd_soc_tplg_pcm *pcm)
1802 {
1803 struct snd_soc_dai_driver *dai_drv;
1804 struct snd_soc_pcm_stream *stream;
1805 struct snd_soc_tplg_stream_caps *caps;
1806 struct snd_soc_dai *dai;
1807 struct snd_soc_dapm_context *dapm =
1808 snd_soc_component_get_dapm(tplg->comp);
1809 int ret;
1810
1811 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1812 if (dai_drv == NULL)
1813 return -ENOMEM;
1814
1815 if (strlen(pcm->dai_name))
1816 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1817 dai_drv->id = le32_to_cpu(pcm->dai_id);
1818
1819 if (pcm->playback) {
1820 stream = &dai_drv->playback;
1821 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1822 set_stream_info(stream, caps);
1823 }
1824
1825 if (pcm->capture) {
1826 stream = &dai_drv->capture;
1827 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1828 set_stream_info(stream, caps);
1829 }
1830
1831 if (pcm->compress)
1832 dai_drv->compress_new = snd_soc_new_compress;
1833
1834 /* pass control to component driver for optional further init */
1835 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1836 if (ret < 0) {
1837 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1838 kfree(dai_drv->playback.stream_name);
1839 kfree(dai_drv->capture.stream_name);
1840 kfree(dai_drv->name);
1841 kfree(dai_drv);
1842 return ret;
1843 }
1844
1845 dai_drv->dobj.index = tplg->index;
1846 dai_drv->dobj.ops = tplg->ops;
1847 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1848 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1849
1850 /* register the DAI to the component */
1851 dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1852 if (!dai)
1853 return -ENOMEM;
1854
1855 /* Create the DAI widgets here */
1856 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1857 if (ret != 0) {
1858 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1859 snd_soc_unregister_dai(dai);
1860 return ret;
1861 }
1862
1863 return ret;
1864 }
1865
1866 static void set_link_flags(struct snd_soc_dai_link *link,
1867 unsigned int flag_mask, unsigned int flags)
1868 {
1869 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1870 link->symmetric_rates =
1871 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1872
1873 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1874 link->symmetric_channels =
1875 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1876 1 : 0;
1877
1878 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1879 link->symmetric_samplebits =
1880 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1881 1 : 0;
1882
1883 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1884 link->ignore_suspend =
1885 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1886 1 : 0;
1887 }
1888
1889 /* create the FE DAI link */
1890 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1891 struct snd_soc_tplg_pcm *pcm)
1892 {
1893 struct snd_soc_dai_link *link;
1894 struct snd_soc_dai_link_component *dlc;
1895 int ret;
1896
1897 /* link + cpu + codec + platform */
1898 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1899 if (link == NULL)
1900 return -ENOMEM;
1901
1902 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1903
1904 link->cpus = &dlc[0];
1905 link->codecs = &dlc[1];
1906 link->platforms = &dlc[2];
1907
1908 link->num_cpus = 1;
1909 link->num_codecs = 1;
1910 link->num_platforms = 1;
1911
1912 link->dobj.index = tplg->index;
1913 link->dobj.ops = tplg->ops;
1914 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1915
1916 if (strlen(pcm->pcm_name)) {
1917 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1918 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1919 }
1920 link->id = le32_to_cpu(pcm->pcm_id);
1921
1922 if (strlen(pcm->dai_name))
1923 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1924
1925 link->codecs->name = "snd-soc-dummy";
1926 link->codecs->dai_name = "snd-soc-dummy-dai";
1927
1928 link->platforms->name = "snd-soc-dummy";
1929
1930 /* enable DPCM */
1931 link->dynamic = 1;
1932 link->dpcm_playback = le32_to_cpu(pcm->playback);
1933 link->dpcm_capture = le32_to_cpu(pcm->capture);
1934 if (pcm->flag_mask)
1935 set_link_flags(link,
1936 le32_to_cpu(pcm->flag_mask),
1937 le32_to_cpu(pcm->flags));
1938
1939 /* pass control to component driver for optional further init */
1940 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1941 if (ret < 0) {
1942 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1943 goto err;
1944 }
1945
1946 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link);
1947 if (ret < 0) {
1948 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n");
1949 goto err;
1950 }
1951
1952 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1953
1954 return 0;
1955 err:
1956 kfree(link->name);
1957 kfree(link->stream_name);
1958 kfree(link->cpus->dai_name);
1959 kfree(link);
1960 return ret;
1961 }
1962
1963 /* create a FE DAI and DAI link from the PCM object */
1964 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1965 struct snd_soc_tplg_pcm *pcm)
1966 {
1967 int ret;
1968
1969 ret = soc_tplg_dai_create(tplg, pcm);
1970 if (ret < 0)
1971 return ret;
1972
1973 return soc_tplg_fe_link_create(tplg, pcm);
1974 }
1975
1976 /* copy stream caps from the old version 4 of source */
1977 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1978 struct snd_soc_tplg_stream_caps_v4 *src)
1979 {
1980 dest->size = cpu_to_le32(sizeof(*dest));
1981 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1982 dest->formats = src->formats;
1983 dest->rates = src->rates;
1984 dest->rate_min = src->rate_min;
1985 dest->rate_max = src->rate_max;
1986 dest->channels_min = src->channels_min;
1987 dest->channels_max = src->channels_max;
1988 dest->periods_min = src->periods_min;
1989 dest->periods_max = src->periods_max;
1990 dest->period_size_min = src->period_size_min;
1991 dest->period_size_max = src->period_size_max;
1992 dest->buffer_size_min = src->buffer_size_min;
1993 dest->buffer_size_max = src->buffer_size_max;
1994 }
1995
1996 /**
1997 * pcm_new_ver - Create the new version of PCM from the old version.
1998 * @tplg: topology context
1999 * @src: older version of pcm as a source
2000 * @pcm: latest version of pcm created from the source
2001 *
2002 * Support from vesion 4. User should free the returned pcm manually.
2003 */
2004 static int pcm_new_ver(struct soc_tplg *tplg,
2005 struct snd_soc_tplg_pcm *src,
2006 struct snd_soc_tplg_pcm **pcm)
2007 {
2008 struct snd_soc_tplg_pcm *dest;
2009 struct snd_soc_tplg_pcm_v4 *src_v4;
2010 int i;
2011
2012 *pcm = NULL;
2013
2014 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
2015 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
2016 return -EINVAL;
2017 }
2018
2019 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
2020 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
2021 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2022 if (!dest)
2023 return -ENOMEM;
2024
2025 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2026 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2027 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2028 dest->pcm_id = src_v4->pcm_id;
2029 dest->dai_id = src_v4->dai_id;
2030 dest->playback = src_v4->playback;
2031 dest->capture = src_v4->capture;
2032 dest->compress = src_v4->compress;
2033 dest->num_streams = src_v4->num_streams;
2034 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2035 memcpy(&dest->stream[i], &src_v4->stream[i],
2036 sizeof(struct snd_soc_tplg_stream));
2037
2038 for (i = 0; i < 2; i++)
2039 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2040
2041 *pcm = dest;
2042 return 0;
2043 }
2044
2045 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2046 struct snd_soc_tplg_hdr *hdr)
2047 {
2048 struct snd_soc_tplg_pcm *pcm, *_pcm;
2049 int count;
2050 int size;
2051 int i;
2052 bool abi_match;
2053 int ret;
2054
2055 count = le32_to_cpu(hdr->count);
2056
2057 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
2058 return 0;
2059
2060 /* check the element size and count */
2061 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2062 size = le32_to_cpu(pcm->size);
2063 if (size > sizeof(struct snd_soc_tplg_pcm)
2064 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2065 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2066 size);
2067 return -EINVAL;
2068 }
2069
2070 if (soc_tplg_check_elem_count(tplg,
2071 size, count,
2072 le32_to_cpu(hdr->payload_size),
2073 "PCM DAI")) {
2074 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2075 count);
2076 return -EINVAL;
2077 }
2078
2079 for (i = 0; i < count; i++) {
2080 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2081 size = le32_to_cpu(pcm->size);
2082
2083 /* check ABI version by size, create a new version of pcm
2084 * if abi not match.
2085 */
2086 if (size == sizeof(*pcm)) {
2087 abi_match = true;
2088 _pcm = pcm;
2089 } else {
2090 abi_match = false;
2091 pcm_new_ver(tplg, pcm, &_pcm);
2092 }
2093
2094 /* create the FE DAIs and DAI links */
2095 ret = soc_tplg_pcm_create(tplg, _pcm);
2096 if (ret < 0) {
2097 if (!abi_match)
2098 kfree(_pcm);
2099 return ret;
2100 }
2101
2102 /* offset by version-specific struct size and
2103 * real priv data size
2104 */
2105 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2106
2107 if (!abi_match)
2108 kfree(_pcm); /* free the duplicated one */
2109 }
2110
2111 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2112
2113 return 0;
2114 }
2115
2116 /**
2117 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2118 * @link: &snd_soc_dai_link which should be updated
2119 * @cfg: physical link configs.
2120 *
2121 * Topology context contains a list of supported HW formats (configs) and
2122 * a default format ID for the physical link. This function will use this
2123 * default ID to choose the HW format to set the link's DAI format for init.
2124 */
2125 static void set_link_hw_format(struct snd_soc_dai_link *link,
2126 struct snd_soc_tplg_link_config *cfg)
2127 {
2128 struct snd_soc_tplg_hw_config *hw_config;
2129 unsigned char bclk_master, fsync_master;
2130 unsigned char invert_bclk, invert_fsync;
2131 int i;
2132
2133 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2134 hw_config = &cfg->hw_config[i];
2135 if (hw_config->id != cfg->default_hw_config_id)
2136 continue;
2137
2138 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2139 SND_SOC_DAIFMT_FORMAT_MASK;
2140
2141 /* clock gating */
2142 switch (hw_config->clock_gated) {
2143 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2144 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2145 break;
2146
2147 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2148 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2149 break;
2150
2151 default:
2152 /* ignore the value */
2153 break;
2154 }
2155
2156 /* clock signal polarity */
2157 invert_bclk = hw_config->invert_bclk;
2158 invert_fsync = hw_config->invert_fsync;
2159 if (!invert_bclk && !invert_fsync)
2160 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2161 else if (!invert_bclk && invert_fsync)
2162 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2163 else if (invert_bclk && !invert_fsync)
2164 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2165 else
2166 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2167
2168 /* clock masters */
2169 bclk_master = (hw_config->bclk_master ==
2170 SND_SOC_TPLG_BCLK_CM);
2171 fsync_master = (hw_config->fsync_master ==
2172 SND_SOC_TPLG_FSYNC_CM);
2173 if (bclk_master && fsync_master)
2174 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2175 else if (!bclk_master && fsync_master)
2176 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2177 else if (bclk_master && !fsync_master)
2178 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2179 else
2180 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2181 }
2182 }
2183
2184 /**
2185 * link_new_ver - Create a new physical link config from the old
2186 * version of source.
2187 * @tplg: topology context
2188 * @src: old version of phyical link config as a source
2189 * @link: latest version of physical link config created from the source
2190 *
2191 * Support from vesion 4. User need free the returned link config manually.
2192 */
2193 static int link_new_ver(struct soc_tplg *tplg,
2194 struct snd_soc_tplg_link_config *src,
2195 struct snd_soc_tplg_link_config **link)
2196 {
2197 struct snd_soc_tplg_link_config *dest;
2198 struct snd_soc_tplg_link_config_v4 *src_v4;
2199 int i;
2200
2201 *link = NULL;
2202
2203 if (le32_to_cpu(src->size) !=
2204 sizeof(struct snd_soc_tplg_link_config_v4)) {
2205 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2206 return -EINVAL;
2207 }
2208
2209 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2210
2211 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2212 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2213 if (!dest)
2214 return -ENOMEM;
2215
2216 dest->size = cpu_to_le32(sizeof(*dest));
2217 dest->id = src_v4->id;
2218 dest->num_streams = src_v4->num_streams;
2219 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2220 memcpy(&dest->stream[i], &src_v4->stream[i],
2221 sizeof(struct snd_soc_tplg_stream));
2222
2223 *link = dest;
2224 return 0;
2225 }
2226
2227 /**
2228 * snd_soc_find_dai_link - Find a DAI link
2229 *
2230 * @card: soc card
2231 * @id: DAI link ID to match
2232 * @name: DAI link name to match, optional
2233 * @stream_name: DAI link stream name to match, optional
2234 *
2235 * This function will search all existing DAI links of the soc card to
2236 * find the link of the same ID. Since DAI links may not have their
2237 * unique ID, so name and stream name should also match if being
2238 * specified.
2239 *
2240 * Return: pointer of DAI link, or NULL if not found.
2241 */
2242 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
2243 int id, const char *name,
2244 const char *stream_name)
2245 {
2246 struct snd_soc_pcm_runtime *rtd;
2247 struct snd_soc_dai_link *link;
2248
2249 for_each_card_rtds(card, rtd) {
2250 link = rtd->dai_link;
2251
2252 if (link->id != id)
2253 continue;
2254
2255 if (name && (!link->name || strcmp(name, link->name)))
2256 continue;
2257
2258 if (stream_name && (!link->stream_name
2259 || strcmp(stream_name, link->stream_name)))
2260 continue;
2261
2262 return link;
2263 }
2264
2265 return NULL;
2266 }
2267
2268 /* Find and configure an existing physical DAI link */
2269 static int soc_tplg_link_config(struct soc_tplg *tplg,
2270 struct snd_soc_tplg_link_config *cfg)
2271 {
2272 struct snd_soc_dai_link *link;
2273 const char *name, *stream_name;
2274 size_t len;
2275 int ret;
2276
2277 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2278 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2279 return -EINVAL;
2280 else if (len)
2281 name = cfg->name;
2282 else
2283 name = NULL;
2284
2285 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2286 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2287 return -EINVAL;
2288 else if (len)
2289 stream_name = cfg->stream_name;
2290 else
2291 stream_name = NULL;
2292
2293 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2294 name, stream_name);
2295 if (!link) {
2296 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2297 name, cfg->id);
2298 return -EINVAL;
2299 }
2300
2301 /* hw format */
2302 if (cfg->num_hw_configs)
2303 set_link_hw_format(link, cfg);
2304
2305 /* flags */
2306 if (cfg->flag_mask)
2307 set_link_flags(link,
2308 le32_to_cpu(cfg->flag_mask),
2309 le32_to_cpu(cfg->flags));
2310
2311 /* pass control to component driver for optional further init */
2312 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2313 if (ret < 0) {
2314 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2315 return ret;
2316 }
2317
2318 /* for unloading it in snd_soc_tplg_component_remove */
2319 link->dobj.index = tplg->index;
2320 link->dobj.ops = tplg->ops;
2321 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2322 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2323
2324 return 0;
2325 }
2326
2327
2328 /* Load physical link config elements from the topology context */
2329 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2330 struct snd_soc_tplg_hdr *hdr)
2331 {
2332 struct snd_soc_tplg_link_config *link, *_link;
2333 int count;
2334 int size;
2335 int i, ret;
2336 bool abi_match;
2337
2338 count = le32_to_cpu(hdr->count);
2339
2340 if (tplg->pass != SOC_TPLG_PASS_LINK) {
2341 tplg->pos += le32_to_cpu(hdr->size) +
2342 le32_to_cpu(hdr->payload_size);
2343 return 0;
2344 };
2345
2346 /* check the element size and count */
2347 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2348 size = le32_to_cpu(link->size);
2349 if (size > sizeof(struct snd_soc_tplg_link_config)
2350 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2351 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2352 size);
2353 return -EINVAL;
2354 }
2355
2356 if (soc_tplg_check_elem_count(tplg,
2357 size, count,
2358 le32_to_cpu(hdr->payload_size),
2359 "physical link config")) {
2360 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2361 count);
2362 return -EINVAL;
2363 }
2364
2365 /* config physical DAI links */
2366 for (i = 0; i < count; i++) {
2367 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2368 size = le32_to_cpu(link->size);
2369 if (size == sizeof(*link)) {
2370 abi_match = true;
2371 _link = link;
2372 } else {
2373 abi_match = false;
2374 ret = link_new_ver(tplg, link, &_link);
2375 if (ret < 0)
2376 return ret;
2377 }
2378
2379 ret = soc_tplg_link_config(tplg, _link);
2380 if (ret < 0)
2381 return ret;
2382
2383 /* offset by version-specific struct size and
2384 * real priv data size
2385 */
2386 tplg->pos += size + le32_to_cpu(_link->priv.size);
2387
2388 if (!abi_match)
2389 kfree(_link); /* free the duplicated one */
2390 }
2391
2392 return 0;
2393 }
2394
2395 /**
2396 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2397 * @tplg: topology context
2398 * @d: physical DAI configs.
2399 *
2400 * The physical dai should already be registered by the platform driver.
2401 * The platform driver should specify the DAI name and ID for matching.
2402 */
2403 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2404 struct snd_soc_tplg_dai *d)
2405 {
2406 struct snd_soc_dai_link_component dai_component;
2407 struct snd_soc_dai *dai;
2408 struct snd_soc_dai_driver *dai_drv;
2409 struct snd_soc_pcm_stream *stream;
2410 struct snd_soc_tplg_stream_caps *caps;
2411 int ret;
2412
2413 memset(&dai_component, 0, sizeof(dai_component));
2414
2415 dai_component.dai_name = d->dai_name;
2416 dai = snd_soc_find_dai(&dai_component);
2417 if (!dai) {
2418 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2419 d->dai_name);
2420 return -EINVAL;
2421 }
2422
2423 if (le32_to_cpu(d->dai_id) != dai->id) {
2424 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2425 d->dai_name);
2426 return -EINVAL;
2427 }
2428
2429 dai_drv = dai->driver;
2430 if (!dai_drv)
2431 return -EINVAL;
2432
2433 if (d->playback) {
2434 stream = &dai_drv->playback;
2435 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2436 set_stream_info(stream, caps);
2437 }
2438
2439 if (d->capture) {
2440 stream = &dai_drv->capture;
2441 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2442 set_stream_info(stream, caps);
2443 }
2444
2445 if (d->flag_mask)
2446 set_dai_flags(dai_drv,
2447 le32_to_cpu(d->flag_mask),
2448 le32_to_cpu(d->flags));
2449
2450 /* pass control to component driver for optional further init */
2451 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2452 if (ret < 0) {
2453 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2454 return ret;
2455 }
2456
2457 return 0;
2458 }
2459
2460 /* load physical DAI elements */
2461 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2462 struct snd_soc_tplg_hdr *hdr)
2463 {
2464 struct snd_soc_tplg_dai *dai;
2465 int count;
2466 int i;
2467
2468 count = le32_to_cpu(hdr->count);
2469
2470 if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2471 return 0;
2472
2473 /* config the existing BE DAIs */
2474 for (i = 0; i < count; i++) {
2475 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2476 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2477 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2478 return -EINVAL;
2479 }
2480
2481 soc_tplg_dai_config(tplg, dai);
2482 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2483 }
2484
2485 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2486 return 0;
2487 }
2488
2489 /**
2490 * manifest_new_ver - Create a new version of manifest from the old version
2491 * of source.
2492 * @tplg: topology context
2493 * @src: old version of manifest as a source
2494 * @manifest: latest version of manifest created from the source
2495 *
2496 * Support from vesion 4. Users need free the returned manifest manually.
2497 */
2498 static int manifest_new_ver(struct soc_tplg *tplg,
2499 struct snd_soc_tplg_manifest *src,
2500 struct snd_soc_tplg_manifest **manifest)
2501 {
2502 struct snd_soc_tplg_manifest *dest;
2503 struct snd_soc_tplg_manifest_v4 *src_v4;
2504 int size;
2505
2506 *manifest = NULL;
2507
2508 size = le32_to_cpu(src->size);
2509 if (size != sizeof(*src_v4)) {
2510 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2511 size);
2512 if (size)
2513 return -EINVAL;
2514 src->size = cpu_to_le32(sizeof(*src_v4));
2515 }
2516
2517 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2518
2519 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2520 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2521 GFP_KERNEL);
2522 if (!dest)
2523 return -ENOMEM;
2524
2525 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2526 dest->control_elems = src_v4->control_elems;
2527 dest->widget_elems = src_v4->widget_elems;
2528 dest->graph_elems = src_v4->graph_elems;
2529 dest->pcm_elems = src_v4->pcm_elems;
2530 dest->dai_link_elems = src_v4->dai_link_elems;
2531 dest->priv.size = src_v4->priv.size;
2532 if (dest->priv.size)
2533 memcpy(dest->priv.data, src_v4->priv.data,
2534 le32_to_cpu(src_v4->priv.size));
2535
2536 *manifest = dest;
2537 return 0;
2538 }
2539
2540 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2541 struct snd_soc_tplg_hdr *hdr)
2542 {
2543 struct snd_soc_tplg_manifest *manifest, *_manifest;
2544 bool abi_match;
2545 int err;
2546
2547 if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2548 return 0;
2549
2550 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2551
2552 /* check ABI version by size, create a new manifest if abi not match */
2553 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2554 abi_match = true;
2555 _manifest = manifest;
2556 } else {
2557 abi_match = false;
2558 err = manifest_new_ver(tplg, manifest, &_manifest);
2559 if (err < 0)
2560 return err;
2561 }
2562
2563 /* pass control to component driver for optional further init */
2564 if (tplg->comp && tplg->ops && tplg->ops->manifest)
2565 return tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2566
2567 if (!abi_match) /* free the duplicated one */
2568 kfree(_manifest);
2569
2570 return 0;
2571 }
2572
2573 /* validate header magic, size and type */
2574 static int soc_valid_header(struct soc_tplg *tplg,
2575 struct snd_soc_tplg_hdr *hdr)
2576 {
2577 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2578 return 0;
2579
2580 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2581 dev_err(tplg->dev,
2582 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2583 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2584 tplg->fw->size);
2585 return -EINVAL;
2586 }
2587
2588 /* big endian firmware objects not supported atm */
2589 if (hdr->magic == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2590 dev_err(tplg->dev,
2591 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2592 tplg->pass, hdr->magic,
2593 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2594 return -EINVAL;
2595 }
2596
2597 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2598 dev_err(tplg->dev,
2599 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2600 tplg->pass, hdr->magic,
2601 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2602 return -EINVAL;
2603 }
2604
2605 /* Support ABI from version 4 */
2606 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2607 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2608 dev_err(tplg->dev,
2609 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2610 tplg->pass, hdr->abi,
2611 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2612 tplg->fw->size);
2613 return -EINVAL;
2614 }
2615
2616 if (hdr->payload_size == 0) {
2617 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2618 soc_tplg_get_hdr_offset(tplg));
2619 return -EINVAL;
2620 }
2621
2622 if (tplg->pass == le32_to_cpu(hdr->type))
2623 dev_dbg(tplg->dev,
2624 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2625 hdr->payload_size, hdr->type, hdr->version,
2626 hdr->vendor_type, tplg->pass);
2627
2628 return 1;
2629 }
2630
2631 /* check header type and call appropriate handler */
2632 static int soc_tplg_load_header(struct soc_tplg *tplg,
2633 struct snd_soc_tplg_hdr *hdr)
2634 {
2635 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2636
2637 /* check for matching ID */
2638 if (le32_to_cpu(hdr->index) != tplg->req_index &&
2639 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2640 return 0;
2641
2642 tplg->index = le32_to_cpu(hdr->index);
2643
2644 switch (le32_to_cpu(hdr->type)) {
2645 case SND_SOC_TPLG_TYPE_MIXER:
2646 case SND_SOC_TPLG_TYPE_ENUM:
2647 case SND_SOC_TPLG_TYPE_BYTES:
2648 return soc_tplg_kcontrol_elems_load(tplg, hdr);
2649 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2650 return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2651 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2652 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2653 case SND_SOC_TPLG_TYPE_PCM:
2654 return soc_tplg_pcm_elems_load(tplg, hdr);
2655 case SND_SOC_TPLG_TYPE_DAI:
2656 return soc_tplg_dai_elems_load(tplg, hdr);
2657 case SND_SOC_TPLG_TYPE_DAI_LINK:
2658 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2659 /* physical link configurations */
2660 return soc_tplg_link_elems_load(tplg, hdr);
2661 case SND_SOC_TPLG_TYPE_MANIFEST:
2662 return soc_tplg_manifest_load(tplg, hdr);
2663 default:
2664 /* bespoke vendor data object */
2665 return soc_tplg_vendor_load(tplg, hdr);
2666 }
2667
2668 return 0;
2669 }
2670
2671 /* process the topology file headers */
2672 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2673 {
2674 struct snd_soc_tplg_hdr *hdr;
2675 int ret;
2676
2677 tplg->pass = SOC_TPLG_PASS_START;
2678
2679 /* process the header types from start to end */
2680 while (tplg->pass <= SOC_TPLG_PASS_END) {
2681
2682 tplg->hdr_pos = tplg->fw->data;
2683 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2684
2685 while (!soc_tplg_is_eof(tplg)) {
2686
2687 /* make sure header is valid before loading */
2688 ret = soc_valid_header(tplg, hdr);
2689 if (ret < 0)
2690 return ret;
2691 else if (ret == 0)
2692 break;
2693
2694 /* load the header object */
2695 ret = soc_tplg_load_header(tplg, hdr);
2696 if (ret < 0)
2697 return ret;
2698
2699 /* goto next header */
2700 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2701 sizeof(struct snd_soc_tplg_hdr);
2702 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2703 }
2704
2705 /* next data type pass */
2706 tplg->pass++;
2707 }
2708
2709 /* signal DAPM we are complete */
2710 ret = soc_tplg_dapm_complete(tplg);
2711 if (ret < 0)
2712 dev_err(tplg->dev,
2713 "ASoC: failed to initialise DAPM from Firmware\n");
2714
2715 return ret;
2716 }
2717
2718 static int soc_tplg_load(struct soc_tplg *tplg)
2719 {
2720 int ret;
2721
2722 ret = soc_tplg_process_headers(tplg);
2723 if (ret == 0)
2724 soc_tplg_complete(tplg);
2725
2726 return ret;
2727 }
2728
2729 /* load audio component topology from "firmware" file */
2730 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2731 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2732 {
2733 struct soc_tplg tplg;
2734 int ret;
2735
2736 /* setup parsing context */
2737 memset(&tplg, 0, sizeof(tplg));
2738 tplg.fw = fw;
2739 tplg.dev = comp->dev;
2740 tplg.comp = comp;
2741 tplg.ops = ops;
2742 tplg.req_index = id;
2743 tplg.io_ops = ops->io_ops;
2744 tplg.io_ops_count = ops->io_ops_count;
2745 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2746 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2747
2748 ret = soc_tplg_load(&tplg);
2749 /* free the created components if fail to load topology */
2750 if (ret)
2751 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2752
2753 return ret;
2754 }
2755 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2756
2757 /* remove this dynamic widget */
2758 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2759 {
2760 /* make sure we are a widget */
2761 if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2762 return;
2763
2764 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2765 }
2766 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2767
2768 /* remove all dynamic widgets from this DAPM context */
2769 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2770 u32 index)
2771 {
2772 struct snd_soc_dapm_widget *w, *next_w;
2773
2774 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2775
2776 /* make sure we are a widget with correct context */
2777 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2778 continue;
2779
2780 /* match ID */
2781 if (w->dobj.index != index &&
2782 w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2783 continue;
2784 /* check and free and dynamic widget kcontrols */
2785 snd_soc_tplg_widget_remove(w);
2786 snd_soc_dapm_free_widget(w);
2787 }
2788 snd_soc_dapm_reset_cache(dapm);
2789 }
2790 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2791
2792 /* remove dynamic controls from the component driver */
2793 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2794 {
2795 struct snd_soc_dobj *dobj, *next_dobj;
2796 int pass = SOC_TPLG_PASS_END;
2797
2798 /* process the header types from end to start */
2799 while (pass >= SOC_TPLG_PASS_START) {
2800
2801 /* remove mixer controls */
2802 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2803 list) {
2804
2805 /* match index */
2806 if (dobj->index != index &&
2807 index != SND_SOC_TPLG_INDEX_ALL)
2808 continue;
2809
2810 switch (dobj->type) {
2811 case SND_SOC_DOBJ_MIXER:
2812 remove_mixer(comp, dobj, pass);
2813 break;
2814 case SND_SOC_DOBJ_ENUM:
2815 remove_enum(comp, dobj, pass);
2816 break;
2817 case SND_SOC_DOBJ_BYTES:
2818 remove_bytes(comp, dobj, pass);
2819 break;
2820 case SND_SOC_DOBJ_GRAPH:
2821 remove_route(comp, dobj, pass);
2822 break;
2823 case SND_SOC_DOBJ_WIDGET:
2824 remove_widget(comp, dobj, pass);
2825 break;
2826 case SND_SOC_DOBJ_PCM:
2827 remove_dai(comp, dobj, pass);
2828 break;
2829 case SND_SOC_DOBJ_DAI_LINK:
2830 remove_link(comp, dobj, pass);
2831 break;
2832 case SND_SOC_DOBJ_BACKEND_LINK:
2833 /*
2834 * call link_unload ops if extra
2835 * deinitialization is needed.
2836 */
2837 remove_backend_link(comp, dobj, pass);
2838 break;
2839 default:
2840 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2841 dobj->type);
2842 break;
2843 }
2844 }
2845 pass--;
2846 }
2847
2848 /* let caller know if FW can be freed when no objects are left */
2849 return !list_empty(&comp->dobj_list);
2850 }
2851 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
Linux with added FPC-III support