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[mirror_ubuntu-jammy-kernel.git] / sound / soc / soc-topology.c
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
68 /* vendor specific kcontrol operations */
69 const struct snd_soc_tplg_kcontrol_ops *io_ops;
70 int io_ops_count;
71
72 /* vendor specific bytes ext handlers, for TLV bytes controls */
73 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
74 int bytes_ext_ops_count;
75
76 /* optional fw loading callbacks to component drivers */
77 struct snd_soc_tplg_ops *ops;
78 };
79
80 static int soc_tplg_process_headers(struct soc_tplg *tplg);
81 static void soc_tplg_complete(struct soc_tplg *tplg);
82
83 /* check we dont overflow the data for this control chunk */
84 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
85 unsigned int count, size_t bytes, const char *elem_type)
86 {
87 const u8 *end = tplg->pos + elem_size * count;
88
89 if (end > tplg->fw->data + tplg->fw->size) {
90 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
91 elem_type);
92 return -EINVAL;
93 }
94
95 /* check there is enough room in chunk for control.
96 extra bytes at the end of control are for vendor data here */
97 if (elem_size * count > bytes) {
98 dev_err(tplg->dev,
99 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
100 elem_type, count, elem_size, bytes);
101 return -EINVAL;
102 }
103
104 return 0;
105 }
106
107 static inline int soc_tplg_is_eof(struct soc_tplg *tplg)
108 {
109 const u8 *end = tplg->hdr_pos;
110
111 if (end >= tplg->fw->data + tplg->fw->size)
112 return 1;
113 return 0;
114 }
115
116 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
117 {
118 return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
119 }
120
121 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
122 {
123 return (unsigned long)(tplg->pos - tplg->fw->data);
124 }
125
126 /* mapping of Kcontrol types and associated operations. */
127 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
128 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
129 snd_soc_put_volsw, snd_soc_info_volsw},
130 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
131 snd_soc_put_volsw_sx, NULL},
132 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
133 snd_soc_put_enum_double, snd_soc_info_enum_double},
134 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
135 snd_soc_put_enum_double, NULL},
136 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
137 snd_soc_bytes_put, snd_soc_bytes_info},
138 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
139 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
140 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
141 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
142 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
143 snd_soc_put_strobe, NULL},
144 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
145 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
146 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
147 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
148 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
149 snd_soc_dapm_put_enum_double, NULL},
150 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
151 snd_soc_dapm_put_enum_double, NULL},
152 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
153 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
154 };
155
156 struct soc_tplg_map {
157 int uid;
158 int kid;
159 };
160
161 /* mapping of widget types from UAPI IDs to kernel IDs */
162 static const struct soc_tplg_map dapm_map[] = {
163 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
164 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
165 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
166 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
167 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
168 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
169 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
170 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
171 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
172 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
173 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
174 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
175 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
176 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
177 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
178 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
179 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
180 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
181 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
182 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
183 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
184 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
185 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
186 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
187 };
188
189 static int tplc_chan_get_reg(struct soc_tplg *tplg,
190 struct snd_soc_tplg_channel *chan, int map)
191 {
192 int i;
193
194 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
195 if (le32_to_cpu(chan[i].id) == map)
196 return le32_to_cpu(chan[i].reg);
197 }
198
199 return -EINVAL;
200 }
201
202 static int tplc_chan_get_shift(struct soc_tplg *tplg,
203 struct snd_soc_tplg_channel *chan, int map)
204 {
205 int i;
206
207 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
208 if (le32_to_cpu(chan[i].id) == map)
209 return le32_to_cpu(chan[i].shift);
210 }
211
212 return -EINVAL;
213 }
214
215 static int get_widget_id(int tplg_type)
216 {
217 int i;
218
219 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
220 if (tplg_type == dapm_map[i].uid)
221 return dapm_map[i].kid;
222 }
223
224 return -EINVAL;
225 }
226
227 static inline void soc_bind_err(struct soc_tplg *tplg,
228 struct snd_soc_tplg_ctl_hdr *hdr, int index)
229 {
230 dev_err(tplg->dev,
231 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
232 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
233 soc_tplg_get_offset(tplg));
234 }
235
236 static inline void soc_control_err(struct soc_tplg *tplg,
237 struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
238 {
239 dev_err(tplg->dev,
240 "ASoC: no complete mixer IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
241 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
242 soc_tplg_get_offset(tplg));
243 }
244
245 /* pass vendor data to component driver for processing */
246 static int soc_tplg_vendor_load(struct soc_tplg *tplg,
247 struct snd_soc_tplg_hdr *hdr)
248 {
249 int ret = 0;
250
251 if (tplg->ops && tplg->ops->vendor_load)
252 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
253 else {
254 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
255 hdr->vendor_type);
256 return -EINVAL;
257 }
258
259 if (ret < 0)
260 dev_err(tplg->dev,
261 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
262 soc_tplg_get_hdr_offset(tplg),
263 soc_tplg_get_hdr_offset(tplg),
264 hdr->type, hdr->vendor_type);
265 return ret;
266 }
267
268 /* optionally pass new dynamic widget to component driver. This is mainly for
269 * external widgets where we can assign private data/ops */
270 static int soc_tplg_widget_load(struct soc_tplg *tplg,
271 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
272 {
273 if (tplg->ops && tplg->ops->widget_load)
274 return tplg->ops->widget_load(tplg->comp, tplg->index, w,
275 tplg_w);
276
277 return 0;
278 }
279
280 /* optionally pass new dynamic widget to component driver. This is mainly for
281 * external widgets where we can assign private data/ops */
282 static int soc_tplg_widget_ready(struct soc_tplg *tplg,
283 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
284 {
285 if (tplg->ops && tplg->ops->widget_ready)
286 return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
287 tplg_w);
288
289 return 0;
290 }
291
292 /* pass DAI configurations to component driver for extra initialization */
293 static int soc_tplg_dai_load(struct soc_tplg *tplg,
294 struct snd_soc_dai_driver *dai_drv,
295 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
296 {
297 if (tplg->ops && tplg->ops->dai_load)
298 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
299 pcm, dai);
300
301 return 0;
302 }
303
304 /* pass link configurations to component driver for extra initialization */
305 static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
306 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
307 {
308 if (tplg->ops && tplg->ops->link_load)
309 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
310
311 return 0;
312 }
313
314 /* tell the component driver that all firmware has been loaded in this request */
315 static void soc_tplg_complete(struct soc_tplg *tplg)
316 {
317 if (tplg->ops && tplg->ops->complete)
318 tplg->ops->complete(tplg->comp);
319 }
320
321 /* add a dynamic kcontrol */
322 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
323 const struct snd_kcontrol_new *control_new, const char *prefix,
324 void *data, struct snd_kcontrol **kcontrol)
325 {
326 int err;
327
328 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
329 if (*kcontrol == NULL) {
330 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
331 control_new->name);
332 return -ENOMEM;
333 }
334
335 err = snd_ctl_add(card, *kcontrol);
336 if (err < 0) {
337 dev_err(dev, "ASoC: Failed to add %s: %d\n",
338 control_new->name, err);
339 return err;
340 }
341
342 return 0;
343 }
344
345 /* add a dynamic kcontrol for component driver */
346 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
347 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
348 {
349 struct snd_soc_component *comp = tplg->comp;
350
351 return soc_tplg_add_dcontrol(comp->card->snd_card,
352 comp->dev, k, comp->name_prefix, comp, kcontrol);
353 }
354
355 /* remove a mixer kcontrol */
356 static void remove_mixer(struct snd_soc_component *comp,
357 struct snd_soc_dobj *dobj, int pass)
358 {
359 struct snd_card *card = comp->card->snd_card;
360
361 if (pass != SOC_TPLG_PASS_MIXER)
362 return;
363
364 if (dobj->ops && dobj->ops->control_unload)
365 dobj->ops->control_unload(comp, dobj);
366
367 snd_ctl_remove(card, dobj->control.kcontrol);
368 list_del(&dobj->list);
369 }
370
371 /* remove an enum kcontrol */
372 static void remove_enum(struct snd_soc_component *comp,
373 struct snd_soc_dobj *dobj, int pass)
374 {
375 struct snd_card *card = comp->card->snd_card;
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 snd_ctl_remove(card, dobj->control.kcontrol);
384 list_del(&dobj->list);
385 }
386
387 /* remove a byte kcontrol */
388 static void remove_bytes(struct snd_soc_component *comp,
389 struct snd_soc_dobj *dobj, int pass)
390 {
391 struct snd_card *card = comp->card->snd_card;
392
393 if (pass != SOC_TPLG_PASS_MIXER)
394 return;
395
396 if (dobj->ops && dobj->ops->control_unload)
397 dobj->ops->control_unload(comp, dobj);
398
399 snd_ctl_remove(card, dobj->control.kcontrol);
400 list_del(&dobj->list);
401 }
402
403 /* remove a route */
404 static void remove_route(struct snd_soc_component *comp,
405 struct snd_soc_dobj *dobj, int pass)
406 {
407 if (pass != SOC_TPLG_PASS_GRAPH)
408 return;
409
410 if (dobj->ops && dobj->ops->dapm_route_unload)
411 dobj->ops->dapm_route_unload(comp, dobj);
412
413 list_del(&dobj->list);
414 }
415
416 /* remove a widget and it's kcontrols - routes must be removed first */
417 static void remove_widget(struct snd_soc_component *comp,
418 struct snd_soc_dobj *dobj, int pass)
419 {
420 struct snd_card *card = comp->card->snd_card;
421 struct snd_soc_dapm_widget *w =
422 container_of(dobj, struct snd_soc_dapm_widget, dobj);
423 int i;
424
425 if (pass != SOC_TPLG_PASS_WIDGET)
426 return;
427
428 if (dobj->ops && dobj->ops->widget_unload)
429 dobj->ops->widget_unload(comp, dobj);
430
431 if (!w->kcontrols)
432 goto free_news;
433
434 for (i = 0; w->kcontrols && i < w->num_kcontrols; i++)
435 snd_ctl_remove(card, w->kcontrols[i]);
436
437 free_news:
438
439 list_del(&dobj->list);
440
441 /* widget w is freed by soc-dapm.c */
442 }
443
444 /* remove DAI configurations */
445 static void remove_dai(struct snd_soc_component *comp,
446 struct snd_soc_dobj *dobj, int pass)
447 {
448 struct snd_soc_dai_driver *dai_drv =
449 container_of(dobj, struct snd_soc_dai_driver, dobj);
450 struct snd_soc_dai *dai, *_dai;
451
452 if (pass != SOC_TPLG_PASS_PCM_DAI)
453 return;
454
455 if (dobj->ops && dobj->ops->dai_unload)
456 dobj->ops->dai_unload(comp, dobj);
457
458 for_each_component_dais_safe(comp, dai, _dai)
459 if (dai->driver == dai_drv)
460 snd_soc_unregister_dai(dai);
461
462 list_del(&dobj->list);
463 }
464
465 /* remove link configurations */
466 static void remove_link(struct snd_soc_component *comp,
467 struct snd_soc_dobj *dobj, int pass)
468 {
469 struct snd_soc_dai_link *link =
470 container_of(dobj, struct snd_soc_dai_link, dobj);
471
472 if (pass != SOC_TPLG_PASS_PCM_DAI)
473 return;
474
475 if (dobj->ops && dobj->ops->link_unload)
476 dobj->ops->link_unload(comp, dobj);
477
478 list_del(&dobj->list);
479 snd_soc_remove_pcm_runtime(comp->card,
480 snd_soc_get_pcm_runtime(comp->card, link));
481 }
482
483 /* unload dai link */
484 static void remove_backend_link(struct snd_soc_component *comp,
485 struct snd_soc_dobj *dobj, int pass)
486 {
487 if (pass != SOC_TPLG_PASS_LINK)
488 return;
489
490 if (dobj->ops && dobj->ops->link_unload)
491 dobj->ops->link_unload(comp, dobj);
492
493 /*
494 * We don't free the link here as what remove_link() do since BE
495 * links are not allocated by topology.
496 * We however need to reset the dobj type to its initial values
497 */
498 dobj->type = SND_SOC_DOBJ_NONE;
499 list_del(&dobj->list);
500 }
501
502 /* bind a kcontrol to it's IO handlers */
503 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
504 struct snd_kcontrol_new *k,
505 const struct soc_tplg *tplg)
506 {
507 const struct snd_soc_tplg_kcontrol_ops *ops;
508 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
509 int num_ops, i;
510
511 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
512 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
513 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
514 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
515 struct soc_bytes_ext *sbe;
516 struct snd_soc_tplg_bytes_control *be;
517
518 sbe = (struct soc_bytes_ext *)k->private_value;
519 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
520
521 /* TLV bytes controls need standard kcontrol info handler,
522 * TLV callback and extended put/get handlers.
523 */
524 k->info = snd_soc_bytes_info_ext;
525 k->tlv.c = snd_soc_bytes_tlv_callback;
526
527 /*
528 * When a topology-based implementation abuses the
529 * control interface and uses bytes_ext controls of
530 * more than 512 bytes, we need to disable the size
531 * checks, otherwise accesses to such controls will
532 * return an -EINVAL error and prevent the card from
533 * being configured.
534 */
535 if (IS_ENABLED(CONFIG_SND_CTL_VALIDATION) && sbe->max > 512)
536 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK;
537
538 ext_ops = tplg->bytes_ext_ops;
539 num_ops = tplg->bytes_ext_ops_count;
540 for (i = 0; i < num_ops; i++) {
541 if (!sbe->put &&
542 ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
543 sbe->put = ext_ops[i].put;
544 if (!sbe->get &&
545 ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
546 sbe->get = ext_ops[i].get;
547 }
548
549 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get)
550 return -EINVAL;
551 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put)
552 return -EINVAL;
553 return 0;
554 }
555
556 /* try and map vendor specific kcontrol handlers first */
557 ops = tplg->io_ops;
558 num_ops = tplg->io_ops_count;
559 for (i = 0; i < num_ops; i++) {
560
561 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
562 k->put = ops[i].put;
563 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
564 k->get = ops[i].get;
565 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
566 k->info = ops[i].info;
567 }
568
569 /* vendor specific handlers found ? */
570 if (k->put && k->get && k->info)
571 return 0;
572
573 /* none found so try standard kcontrol handlers */
574 ops = io_ops;
575 num_ops = ARRAY_SIZE(io_ops);
576 for (i = 0; i < num_ops; i++) {
577
578 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
579 k->put = ops[i].put;
580 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
581 k->get = ops[i].get;
582 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
583 k->info = ops[i].info;
584 }
585
586 /* standard handlers found ? */
587 if (k->put && k->get && k->info)
588 return 0;
589
590 /* nothing to bind */
591 return -EINVAL;
592 }
593
594 /* bind a widgets to it's evnt handlers */
595 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
596 const struct snd_soc_tplg_widget_events *events,
597 int num_events, u16 event_type)
598 {
599 int i;
600
601 w->event = NULL;
602
603 for (i = 0; i < num_events; i++) {
604 if (event_type == events[i].type) {
605
606 /* found - so assign event */
607 w->event = events[i].event_handler;
608 return 0;
609 }
610 }
611
612 /* not found */
613 return -EINVAL;
614 }
615 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
616
617 /* optionally pass new dynamic kcontrol to component driver. */
618 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
619 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
620 {
621 if (tplg->ops && tplg->ops->control_load)
622 return tplg->ops->control_load(tplg->comp, tplg->index, k,
623 hdr);
624
625 return 0;
626 }
627
628
629 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
630 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
631 {
632 unsigned int item_len = 2 * sizeof(unsigned int);
633 unsigned int *p;
634
635 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
636 if (!p)
637 return -ENOMEM;
638
639 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
640 p[1] = item_len;
641 p[2] = le32_to_cpu(scale->min);
642 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
643 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
644
645 kc->tlv.p = (void *)p;
646 return 0;
647 }
648
649 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
650 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
651 {
652 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
653 u32 access = le32_to_cpu(tc->access);
654
655 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
656 return 0;
657
658 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
659 tplg_tlv = &tc->tlv;
660 switch (le32_to_cpu(tplg_tlv->type)) {
661 case SNDRV_CTL_TLVT_DB_SCALE:
662 return soc_tplg_create_tlv_db_scale(tplg, kc,
663 &tplg_tlv->scale);
664
665 /* TODO: add support for other TLV types */
666 default:
667 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
668 tplg_tlv->type);
669 return -EINVAL;
670 }
671 }
672
673 return 0;
674 }
675
676 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
677 size_t size)
678 {
679 struct snd_soc_tplg_bytes_control *be;
680 struct soc_bytes_ext *sbe;
681 struct snd_kcontrol_new kc;
682 int i;
683 int err = 0;
684
685 if (soc_tplg_check_elem_count(tplg,
686 sizeof(struct snd_soc_tplg_bytes_control), count,
687 size, "mixer bytes")) {
688 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
689 count);
690 return -EINVAL;
691 }
692
693 for (i = 0; i < count; i++) {
694 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
695
696 /* validate kcontrol */
697 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
698 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
699 return -EINVAL;
700
701 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
702 if (sbe == NULL)
703 return -ENOMEM;
704
705 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
706 le32_to_cpu(be->priv.size));
707
708 dev_dbg(tplg->dev,
709 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
710 be->hdr.name, be->hdr.access);
711
712 memset(&kc, 0, sizeof(kc));
713 kc.name = be->hdr.name;
714 kc.private_value = (long)sbe;
715 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
716 kc.access = le32_to_cpu(be->hdr.access);
717
718 sbe->max = le32_to_cpu(be->max);
719 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
720 sbe->dobj.ops = tplg->ops;
721 INIT_LIST_HEAD(&sbe->dobj.list);
722
723 /* map io handlers */
724 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
725 if (err) {
726 soc_control_err(tplg, &be->hdr, be->hdr.name);
727 break;
728 }
729
730 /* pass control to driver for optional further init */
731 err = soc_tplg_init_kcontrol(tplg, &kc,
732 (struct snd_soc_tplg_ctl_hdr *)be);
733 if (err < 0) {
734 dev_err(tplg->dev, "ASoC: failed to init %s\n",
735 be->hdr.name);
736 break;
737 }
738
739 /* register control here */
740 err = soc_tplg_add_kcontrol(tplg, &kc,
741 &sbe->dobj.control.kcontrol);
742 if (err < 0) {
743 dev_err(tplg->dev, "ASoC: failed to add %s\n",
744 be->hdr.name);
745 break;
746 }
747
748 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
749 }
750 return err;
751
752 }
753
754 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
755 size_t size)
756 {
757 struct snd_soc_tplg_mixer_control *mc;
758 struct soc_mixer_control *sm;
759 struct snd_kcontrol_new kc;
760 int i;
761 int err = 0;
762
763 if (soc_tplg_check_elem_count(tplg,
764 sizeof(struct snd_soc_tplg_mixer_control),
765 count, size, "mixers")) {
766
767 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
768 count);
769 return -EINVAL;
770 }
771
772 for (i = 0; i < count; i++) {
773 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
774
775 /* validate kcontrol */
776 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
777 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
778 return -EINVAL;
779
780 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
781 if (sm == NULL)
782 return -ENOMEM;
783 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
784 le32_to_cpu(mc->priv.size));
785
786 dev_dbg(tplg->dev,
787 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
788 mc->hdr.name, mc->hdr.access);
789
790 memset(&kc, 0, sizeof(kc));
791 kc.name = mc->hdr.name;
792 kc.private_value = (long)sm;
793 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
794 kc.access = le32_to_cpu(mc->hdr.access);
795
796 /* we only support FL/FR channel mapping atm */
797 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
798 SNDRV_CHMAP_FL);
799 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
800 SNDRV_CHMAP_FR);
801 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
802 SNDRV_CHMAP_FL);
803 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
804 SNDRV_CHMAP_FR);
805
806 sm->max = le32_to_cpu(mc->max);
807 sm->min = le32_to_cpu(mc->min);
808 sm->invert = le32_to_cpu(mc->invert);
809 sm->platform_max = le32_to_cpu(mc->platform_max);
810 sm->dobj.index = tplg->index;
811 sm->dobj.ops = tplg->ops;
812 sm->dobj.type = SND_SOC_DOBJ_MIXER;
813 INIT_LIST_HEAD(&sm->dobj.list);
814
815 /* map io handlers */
816 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
817 if (err) {
818 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
819 break;
820 }
821
822 /* create any TLV data */
823 err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
824 if (err < 0) {
825 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
826 mc->hdr.name);
827 break;
828 }
829
830 /* pass control to driver for optional further init */
831 err = soc_tplg_init_kcontrol(tplg, &kc,
832 (struct snd_soc_tplg_ctl_hdr *) mc);
833 if (err < 0) {
834 dev_err(tplg->dev, "ASoC: failed to init %s\n",
835 mc->hdr.name);
836 break;
837 }
838
839 /* register control here */
840 err = soc_tplg_add_kcontrol(tplg, &kc,
841 &sm->dobj.control.kcontrol);
842 if (err < 0) {
843 dev_err(tplg->dev, "ASoC: failed to add %s\n",
844 mc->hdr.name);
845 break;
846 }
847
848 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
849 }
850
851 return err;
852 }
853
854 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se,
855 struct snd_soc_tplg_enum_control *ec)
856 {
857 int i, ret;
858
859 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts))
860 return -EINVAL;
861
862 se->dobj.control.dtexts =
863 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
864 if (se->dobj.control.dtexts == NULL)
865 return -ENOMEM;
866
867 for (i = 0; i < le32_to_cpu(ec->items); i++) {
868
869 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
870 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
871 ret = -EINVAL;
872 goto err;
873 }
874
875 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL);
876 if (!se->dobj.control.dtexts[i]) {
877 ret = -ENOMEM;
878 goto err;
879 }
880 }
881
882 se->items = le32_to_cpu(ec->items);
883 se->texts = (const char * const *)se->dobj.control.dtexts;
884 return 0;
885
886 err:
887 return ret;
888 }
889
890 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
891 struct snd_soc_tplg_enum_control *ec)
892 {
893 int i;
894
895 /*
896 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS
897 * values instead of using ARRAY_SIZE(ec->values) due to the fact that
898 * it is oversized for its purpose. Additionally it is done so because
899 * it is defined in UAPI header where it can't be easily changed.
900 */
901 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS)
902 return -EINVAL;
903
904 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items),
905 sizeof(*se->dobj.control.dvalues),
906 GFP_KERNEL);
907 if (!se->dobj.control.dvalues)
908 return -ENOMEM;
909
910 /* convert from little-endian */
911 for (i = 0; i < le32_to_cpu(ec->items); i++) {
912 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
913 }
914
915 return 0;
916 }
917
918 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
919 size_t size)
920 {
921 struct snd_soc_tplg_enum_control *ec;
922 struct soc_enum *se;
923 struct snd_kcontrol_new kc;
924 int i;
925 int err = 0;
926
927 if (soc_tplg_check_elem_count(tplg,
928 sizeof(struct snd_soc_tplg_enum_control),
929 count, size, "enums")) {
930
931 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
932 count);
933 return -EINVAL;
934 }
935
936 for (i = 0; i < count; i++) {
937 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
938
939 /* validate kcontrol */
940 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
941 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
942 return -EINVAL;
943
944 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL);
945 if (se == NULL)
946 return -ENOMEM;
947
948 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
949 le32_to_cpu(ec->priv.size));
950
951 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
952 ec->hdr.name, ec->items);
953
954 memset(&kc, 0, sizeof(kc));
955 kc.name = ec->hdr.name;
956 kc.private_value = (long)se;
957 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
958 kc.access = le32_to_cpu(ec->hdr.access);
959
960 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
961 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
962 SNDRV_CHMAP_FL);
963 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
964 SNDRV_CHMAP_FL);
965
966 se->mask = le32_to_cpu(ec->mask);
967 se->dobj.index = tplg->index;
968 se->dobj.type = SND_SOC_DOBJ_ENUM;
969 se->dobj.ops = tplg->ops;
970 INIT_LIST_HEAD(&se->dobj.list);
971
972 switch (le32_to_cpu(ec->hdr.ops.info)) {
973 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
974 case SND_SOC_TPLG_CTL_ENUM_VALUE:
975 err = soc_tplg_denum_create_values(tplg, se, ec);
976 if (err < 0) {
977 dev_err(tplg->dev,
978 "ASoC: could not create values for %s\n",
979 ec->hdr.name);
980 goto err_denum;
981 }
982 fallthrough;
983 case SND_SOC_TPLG_CTL_ENUM:
984 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
985 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
986 err = soc_tplg_denum_create_texts(tplg, se, ec);
987 if (err < 0) {
988 dev_err(tplg->dev,
989 "ASoC: could not create texts for %s\n",
990 ec->hdr.name);
991 goto err_denum;
992 }
993 break;
994 default:
995 err = -EINVAL;
996 dev_err(tplg->dev,
997 "ASoC: invalid enum control type %d for %s\n",
998 ec->hdr.ops.info, ec->hdr.name);
999 goto err_denum;
1000 }
1001
1002 /* map io handlers */
1003 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1004 if (err) {
1005 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1006 goto err_denum;
1007 }
1008
1009 /* pass control to driver for optional further init */
1010 err = soc_tplg_init_kcontrol(tplg, &kc,
1011 (struct snd_soc_tplg_ctl_hdr *) ec);
1012 if (err < 0) {
1013 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1014 ec->hdr.name);
1015 goto err_denum;
1016 }
1017
1018 /* register control here */
1019 err = soc_tplg_add_kcontrol(tplg,
1020 &kc, &se->dobj.control.kcontrol);
1021 if (err < 0) {
1022 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1023 ec->hdr.name);
1024 goto err_denum;
1025 }
1026
1027 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1028 }
1029 return 0;
1030
1031 err_denum:
1032 return err;
1033 }
1034
1035 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1036 struct snd_soc_tplg_hdr *hdr)
1037 {
1038 struct snd_soc_tplg_ctl_hdr *control_hdr;
1039 int ret;
1040 int i;
1041
1042 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1043 soc_tplg_get_offset(tplg));
1044
1045 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1046
1047 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1048
1049 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1050 dev_err(tplg->dev, "ASoC: invalid control size\n");
1051 return -EINVAL;
1052 }
1053
1054 switch (le32_to_cpu(control_hdr->ops.info)) {
1055 case SND_SOC_TPLG_CTL_VOLSW:
1056 case SND_SOC_TPLG_CTL_STROBE:
1057 case SND_SOC_TPLG_CTL_VOLSW_SX:
1058 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1059 case SND_SOC_TPLG_CTL_RANGE:
1060 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1061 case SND_SOC_TPLG_DAPM_CTL_PIN:
1062 ret = soc_tplg_dmixer_create(tplg, 1,
1063 le32_to_cpu(hdr->payload_size));
1064 break;
1065 case SND_SOC_TPLG_CTL_ENUM:
1066 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1067 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1068 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1069 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1070 ret = soc_tplg_denum_create(tplg, 1,
1071 le32_to_cpu(hdr->payload_size));
1072 break;
1073 case SND_SOC_TPLG_CTL_BYTES:
1074 ret = soc_tplg_dbytes_create(tplg, 1,
1075 le32_to_cpu(hdr->payload_size));
1076 break;
1077 default:
1078 soc_bind_err(tplg, control_hdr, i);
1079 return -EINVAL;
1080 }
1081 if (ret < 0) {
1082 dev_err(tplg->dev, "ASoC: invalid control\n");
1083 return ret;
1084 }
1085
1086 }
1087
1088 return 0;
1089 }
1090
1091 /* optionally pass new dynamic kcontrol to component driver. */
1092 static int soc_tplg_add_route(struct soc_tplg *tplg,
1093 struct snd_soc_dapm_route *route)
1094 {
1095 if (tplg->ops && tplg->ops->dapm_route_load)
1096 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1097 route);
1098
1099 return 0;
1100 }
1101
1102 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1103 struct snd_soc_tplg_hdr *hdr)
1104 {
1105 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1106 struct snd_soc_tplg_dapm_graph_elem *elem;
1107 struct snd_soc_dapm_route **routes;
1108 int count, i;
1109 int ret = 0;
1110
1111 count = le32_to_cpu(hdr->count);
1112
1113 if (soc_tplg_check_elem_count(tplg,
1114 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1115 count, le32_to_cpu(hdr->payload_size), "graph")) {
1116
1117 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1118 count);
1119 return -EINVAL;
1120 }
1121
1122 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1123 hdr->index);
1124
1125 /* allocate memory for pointer to array of dapm routes */
1126 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1127 GFP_KERNEL);
1128 if (!routes)
1129 return -ENOMEM;
1130
1131 /*
1132 * allocate memory for each dapm route in the array.
1133 * This needs to be done individually so that
1134 * each route can be freed when it is removed in remove_route().
1135 */
1136 for (i = 0; i < count; i++) {
1137 routes[i] = devm_kzalloc(tplg->dev, sizeof(*routes[i]), GFP_KERNEL);
1138 if (!routes[i])
1139 return -ENOMEM;
1140 }
1141
1142 for (i = 0; i < count; i++) {
1143 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1144 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1145
1146 /* validate routes */
1147 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1148 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1149 ret = -EINVAL;
1150 break;
1151 }
1152 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1153 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1154 ret = -EINVAL;
1155 break;
1156 }
1157 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1158 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1159 ret = -EINVAL;
1160 break;
1161 }
1162
1163 routes[i]->source = elem->source;
1164 routes[i]->sink = elem->sink;
1165
1166 /* set to NULL atm for tplg users */
1167 routes[i]->connected = NULL;
1168 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1169 routes[i]->control = NULL;
1170 else
1171 routes[i]->control = elem->control;
1172
1173 /* add route dobj to dobj_list */
1174 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1175 routes[i]->dobj.ops = tplg->ops;
1176 routes[i]->dobj.index = tplg->index;
1177 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1178
1179 ret = soc_tplg_add_route(tplg, routes[i]);
1180 if (ret < 0) {
1181 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
1182 /*
1183 * this route was added to the list, it will
1184 * be freed in remove_route() so increment the
1185 * counter to skip it in the error handling
1186 * below.
1187 */
1188 i++;
1189 break;
1190 }
1191
1192 /* add route, but keep going if some fail */
1193 snd_soc_dapm_add_routes(dapm, routes[i], 1);
1194 }
1195
1196 /*
1197 * free pointer to array of dapm routes as this is no longer needed.
1198 * The memory allocated for each dapm route will be freed
1199 * when it is removed in remove_route().
1200 */
1201 kfree(routes);
1202
1203 return ret;
1204 }
1205
1206 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1207 struct soc_tplg *tplg, int num_kcontrols)
1208 {
1209 struct snd_kcontrol_new *kc;
1210 struct soc_mixer_control *sm;
1211 struct snd_soc_tplg_mixer_control *mc;
1212 int i, err;
1213
1214 kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
1215 if (kc == NULL)
1216 return NULL;
1217
1218 for (i = 0; i < num_kcontrols; i++) {
1219 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1220
1221 /* validate kcontrol */
1222 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1223 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1224 goto err_sm;
1225
1226 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
1227 if (sm == NULL)
1228 goto err_sm;
1229
1230 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1231 le32_to_cpu(mc->priv.size));
1232
1233 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1234 mc->hdr.name, i);
1235
1236 kc[i].private_value = (long)sm;
1237 kc[i].name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
1238 if (kc[i].name == NULL)
1239 goto err_sm;
1240 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1241 kc[i].access = le32_to_cpu(mc->hdr.access);
1242
1243 /* we only support FL/FR channel mapping atm */
1244 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1245 SNDRV_CHMAP_FL);
1246 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1247 SNDRV_CHMAP_FR);
1248 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1249 SNDRV_CHMAP_FL);
1250 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1251 SNDRV_CHMAP_FR);
1252
1253 sm->max = le32_to_cpu(mc->max);
1254 sm->min = le32_to_cpu(mc->min);
1255 sm->invert = le32_to_cpu(mc->invert);
1256 sm->platform_max = le32_to_cpu(mc->platform_max);
1257 sm->dobj.index = tplg->index;
1258 INIT_LIST_HEAD(&sm->dobj.list);
1259
1260 /* map io handlers */
1261 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1262 if (err) {
1263 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1264 goto err_sm;
1265 }
1266
1267 /* create any TLV data */
1268 err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1269 if (err < 0) {
1270 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
1271 mc->hdr.name);
1272 goto err_sm;
1273 }
1274
1275 /* pass control to driver for optional further init */
1276 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1277 (struct snd_soc_tplg_ctl_hdr *)mc);
1278 if (err < 0) {
1279 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1280 mc->hdr.name);
1281 goto err_sm;
1282 }
1283 }
1284 return kc;
1285
1286 err_sm:
1287 return NULL;
1288 }
1289
1290 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1291 struct soc_tplg *tplg, int num_kcontrols)
1292 {
1293 struct snd_kcontrol_new *kc;
1294 struct snd_soc_tplg_enum_control *ec;
1295 struct soc_enum *se;
1296 int i, err;
1297
1298 kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
1299 if (kc == NULL)
1300 return NULL;
1301
1302 for (i = 0; i < num_kcontrols; i++) {
1303 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1304 /* validate kcontrol */
1305 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1306 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1307 goto err_se;
1308
1309 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
1310 if (se == NULL)
1311 goto err_se;
1312
1313 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1314 le32_to_cpu(ec->priv.size));
1315
1316 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1317 ec->hdr.name);
1318
1319 kc[i].private_value = (long)se;
1320 kc[i].name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
1321 if (kc[i].name == NULL)
1322 goto err_se;
1323 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1324 kc[i].access = le32_to_cpu(ec->hdr.access);
1325
1326 /* we only support FL/FR channel mapping atm */
1327 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1328 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1329 SNDRV_CHMAP_FL);
1330 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1331 SNDRV_CHMAP_FR);
1332
1333 se->items = le32_to_cpu(ec->items);
1334 se->mask = le32_to_cpu(ec->mask);
1335 se->dobj.index = tplg->index;
1336
1337 switch (le32_to_cpu(ec->hdr.ops.info)) {
1338 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1339 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1340 err = soc_tplg_denum_create_values(tplg, se, ec);
1341 if (err < 0) {
1342 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1343 ec->hdr.name);
1344 goto err_se;
1345 }
1346 fallthrough;
1347 case SND_SOC_TPLG_CTL_ENUM:
1348 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1349 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1350 err = soc_tplg_denum_create_texts(tplg, se, ec);
1351 if (err < 0) {
1352 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1353 ec->hdr.name);
1354 goto err_se;
1355 }
1356 break;
1357 default:
1358 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1359 ec->hdr.ops.info, ec->hdr.name);
1360 goto err_se;
1361 }
1362
1363 /* map io handlers */
1364 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1365 if (err) {
1366 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1367 goto err_se;
1368 }
1369
1370 /* pass control to driver for optional further init */
1371 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1372 (struct snd_soc_tplg_ctl_hdr *)ec);
1373 if (err < 0) {
1374 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1375 ec->hdr.name);
1376 goto err_se;
1377 }
1378 }
1379
1380 return kc;
1381
1382 err_se:
1383 return NULL;
1384 }
1385
1386 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1387 struct soc_tplg *tplg, int num_kcontrols)
1388 {
1389 struct snd_soc_tplg_bytes_control *be;
1390 struct soc_bytes_ext *sbe;
1391 struct snd_kcontrol_new *kc;
1392 int i, err;
1393
1394 kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
1395 if (!kc)
1396 return NULL;
1397
1398 for (i = 0; i < num_kcontrols; i++) {
1399 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1400
1401 /* validate kcontrol */
1402 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1403 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1404 goto err_sbe;
1405
1406 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
1407 if (sbe == NULL)
1408 goto err_sbe;
1409
1410 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1411 le32_to_cpu(be->priv.size));
1412
1413 dev_dbg(tplg->dev,
1414 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1415 be->hdr.name, be->hdr.access);
1416
1417 kc[i].private_value = (long)sbe;
1418 kc[i].name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
1419 if (kc[i].name == NULL)
1420 goto err_sbe;
1421 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1422 kc[i].access = le32_to_cpu(be->hdr.access);
1423
1424 sbe->max = le32_to_cpu(be->max);
1425 INIT_LIST_HEAD(&sbe->dobj.list);
1426
1427 /* map standard io handlers and check for external handlers */
1428 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1429 if (err) {
1430 soc_control_err(tplg, &be->hdr, be->hdr.name);
1431 goto err_sbe;
1432 }
1433
1434 /* pass control to driver for optional further init */
1435 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1436 (struct snd_soc_tplg_ctl_hdr *)be);
1437 if (err < 0) {
1438 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1439 be->hdr.name);
1440 goto err_sbe;
1441 }
1442 }
1443
1444 return kc;
1445
1446 err_sbe:
1447
1448 return NULL;
1449 }
1450
1451 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1452 struct snd_soc_tplg_dapm_widget *w)
1453 {
1454 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1455 struct snd_soc_dapm_widget template, *widget;
1456 struct snd_soc_tplg_ctl_hdr *control_hdr;
1457 struct snd_soc_card *card = tplg->comp->card;
1458 unsigned int kcontrol_type;
1459 int ret = 0;
1460
1461 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1462 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1463 return -EINVAL;
1464 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1465 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1466 return -EINVAL;
1467
1468 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1469 w->name, w->id);
1470
1471 memset(&template, 0, sizeof(template));
1472
1473 /* map user to kernel widget ID */
1474 template.id = get_widget_id(le32_to_cpu(w->id));
1475 if ((int)template.id < 0)
1476 return template.id;
1477
1478 /* strings are allocated here, but used and freed by the widget */
1479 template.name = kstrdup(w->name, GFP_KERNEL);
1480 if (!template.name)
1481 return -ENOMEM;
1482 template.sname = kstrdup(w->sname, GFP_KERNEL);
1483 if (!template.sname) {
1484 ret = -ENOMEM;
1485 goto err;
1486 }
1487 template.reg = le32_to_cpu(w->reg);
1488 template.shift = le32_to_cpu(w->shift);
1489 template.mask = le32_to_cpu(w->mask);
1490 template.subseq = le32_to_cpu(w->subseq);
1491 template.on_val = w->invert ? 0 : 1;
1492 template.off_val = w->invert ? 1 : 0;
1493 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1494 template.event_flags = le16_to_cpu(w->event_flags);
1495 template.dobj.index = tplg->index;
1496
1497 tplg->pos +=
1498 (sizeof(struct snd_soc_tplg_dapm_widget) +
1499 le32_to_cpu(w->priv.size));
1500
1501 if (w->num_kcontrols == 0) {
1502 kcontrol_type = 0;
1503 template.num_kcontrols = 0;
1504 goto widget;
1505 }
1506
1507 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1508 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1509 w->name, w->num_kcontrols, control_hdr->type);
1510
1511 switch (le32_to_cpu(control_hdr->ops.info)) {
1512 case SND_SOC_TPLG_CTL_VOLSW:
1513 case SND_SOC_TPLG_CTL_STROBE:
1514 case SND_SOC_TPLG_CTL_VOLSW_SX:
1515 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1516 case SND_SOC_TPLG_CTL_RANGE:
1517 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1518 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1519 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1520 template.kcontrol_news =
1521 soc_tplg_dapm_widget_dmixer_create(tplg,
1522 template.num_kcontrols);
1523 if (!template.kcontrol_news) {
1524 ret = -ENOMEM;
1525 goto hdr_err;
1526 }
1527 break;
1528 case SND_SOC_TPLG_CTL_ENUM:
1529 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1530 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1531 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1532 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1533 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1534 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1535 template.kcontrol_news =
1536 soc_tplg_dapm_widget_denum_create(tplg,
1537 template.num_kcontrols);
1538 if (!template.kcontrol_news) {
1539 ret = -ENOMEM;
1540 goto hdr_err;
1541 }
1542 break;
1543 case SND_SOC_TPLG_CTL_BYTES:
1544 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1545 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1546 template.kcontrol_news =
1547 soc_tplg_dapm_widget_dbytes_create(tplg,
1548 template.num_kcontrols);
1549 if (!template.kcontrol_news) {
1550 ret = -ENOMEM;
1551 goto hdr_err;
1552 }
1553 break;
1554 default:
1555 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1556 control_hdr->ops.get, control_hdr->ops.put,
1557 le32_to_cpu(control_hdr->ops.info));
1558 ret = -EINVAL;
1559 goto hdr_err;
1560 }
1561
1562 widget:
1563 ret = soc_tplg_widget_load(tplg, &template, w);
1564 if (ret < 0)
1565 goto hdr_err;
1566
1567 /* card dapm mutex is held by the core if we are loading topology
1568 * data during sound card init. */
1569 if (card->instantiated)
1570 widget = snd_soc_dapm_new_control(dapm, &template);
1571 else
1572 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1573 if (IS_ERR(widget)) {
1574 ret = PTR_ERR(widget);
1575 goto hdr_err;
1576 }
1577
1578 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1579 widget->dobj.widget.kcontrol_type = kcontrol_type;
1580 widget->dobj.ops = tplg->ops;
1581 widget->dobj.index = tplg->index;
1582 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1583
1584 ret = soc_tplg_widget_ready(tplg, widget, w);
1585 if (ret < 0)
1586 goto ready_err;
1587
1588 kfree(template.sname);
1589 kfree(template.name);
1590
1591 return 0;
1592
1593 ready_err:
1594 remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET);
1595 snd_soc_dapm_free_widget(widget);
1596 hdr_err:
1597 kfree(template.sname);
1598 err:
1599 kfree(template.name);
1600 return ret;
1601 }
1602
1603 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1604 struct snd_soc_tplg_hdr *hdr)
1605 {
1606 struct snd_soc_tplg_dapm_widget *widget;
1607 int ret, count, i;
1608
1609 count = le32_to_cpu(hdr->count);
1610
1611 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1612
1613 for (i = 0; i < count; i++) {
1614 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1615 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1616 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1617 return -EINVAL;
1618 }
1619
1620 ret = soc_tplg_dapm_widget_create(tplg, widget);
1621 if (ret < 0) {
1622 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1623 widget->name);
1624 return ret;
1625 }
1626 }
1627
1628 return 0;
1629 }
1630
1631 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1632 {
1633 struct snd_soc_card *card = tplg->comp->card;
1634 int ret;
1635
1636 /* Card might not have been registered at this point.
1637 * If so, just return success.
1638 */
1639 if (!card || !card->instantiated) {
1640 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1641 " widget card binding deferred\n");
1642 return 0;
1643 }
1644
1645 ret = snd_soc_dapm_new_widgets(card);
1646 if (ret < 0)
1647 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1648 ret);
1649
1650 return 0;
1651 }
1652
1653 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
1654 struct snd_soc_tplg_stream_caps *caps)
1655 {
1656 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
1657 if (!stream->stream_name)
1658 return -ENOMEM;
1659
1660 stream->channels_min = le32_to_cpu(caps->channels_min);
1661 stream->channels_max = le32_to_cpu(caps->channels_max);
1662 stream->rates = le32_to_cpu(caps->rates);
1663 stream->rate_min = le32_to_cpu(caps->rate_min);
1664 stream->rate_max = le32_to_cpu(caps->rate_max);
1665 stream->formats = le64_to_cpu(caps->formats);
1666 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1667
1668 return 0;
1669 }
1670
1671 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1672 unsigned int flag_mask, unsigned int flags)
1673 {
1674 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1675 dai_drv->symmetric_rate =
1676 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1677
1678 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1679 dai_drv->symmetric_channels =
1680 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1681 1 : 0;
1682
1683 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1684 dai_drv->symmetric_sample_bits =
1685 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1686 1 : 0;
1687 }
1688
1689 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1690 struct snd_soc_tplg_pcm *pcm)
1691 {
1692 struct snd_soc_dai_driver *dai_drv;
1693 struct snd_soc_pcm_stream *stream;
1694 struct snd_soc_tplg_stream_caps *caps;
1695 struct snd_soc_dai *dai;
1696 struct snd_soc_dapm_context *dapm =
1697 snd_soc_component_get_dapm(tplg->comp);
1698 int ret;
1699
1700 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1701 if (dai_drv == NULL)
1702 return -ENOMEM;
1703
1704 if (strlen(pcm->dai_name)) {
1705 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1706 if (!dai_drv->name) {
1707 ret = -ENOMEM;
1708 goto err;
1709 }
1710 }
1711 dai_drv->id = le32_to_cpu(pcm->dai_id);
1712
1713 if (pcm->playback) {
1714 stream = &dai_drv->playback;
1715 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1716 ret = set_stream_info(tplg, stream, caps);
1717 if (ret < 0)
1718 goto err;
1719 }
1720
1721 if (pcm->capture) {
1722 stream = &dai_drv->capture;
1723 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1724 ret = set_stream_info(tplg, stream, caps);
1725 if (ret < 0)
1726 goto err;
1727 }
1728
1729 if (pcm->compress)
1730 dai_drv->compress_new = snd_soc_new_compress;
1731
1732 /* pass control to component driver for optional further init */
1733 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1734 if (ret < 0) {
1735 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
1736 goto err;
1737 }
1738
1739 dai_drv->dobj.index = tplg->index;
1740 dai_drv->dobj.ops = tplg->ops;
1741 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1742 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1743
1744 /* register the DAI to the component */
1745 dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1746 if (!dai)
1747 return -ENOMEM;
1748
1749 /* Create the DAI widgets here */
1750 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1751 if (ret != 0) {
1752 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1753 snd_soc_unregister_dai(dai);
1754 return ret;
1755 }
1756
1757 return 0;
1758
1759 err:
1760 return ret;
1761 }
1762
1763 static void set_link_flags(struct snd_soc_dai_link *link,
1764 unsigned int flag_mask, unsigned int flags)
1765 {
1766 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1767 link->symmetric_rate =
1768 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1769
1770 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1771 link->symmetric_channels =
1772 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1773 1 : 0;
1774
1775 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1776 link->symmetric_sample_bits =
1777 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1778 1 : 0;
1779
1780 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1781 link->ignore_suspend =
1782 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1783 1 : 0;
1784 }
1785
1786 /* create the FE DAI link */
1787 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1788 struct snd_soc_tplg_pcm *pcm)
1789 {
1790 struct snd_soc_dai_link *link;
1791 struct snd_soc_dai_link_component *dlc;
1792 int ret;
1793
1794 /* link + cpu + codec + platform */
1795 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1796 if (link == NULL)
1797 return -ENOMEM;
1798
1799 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1800
1801 link->cpus = &dlc[0];
1802 link->codecs = &dlc[1];
1803 link->platforms = &dlc[2];
1804
1805 link->num_cpus = 1;
1806 link->num_codecs = 1;
1807 link->num_platforms = 1;
1808
1809 link->dobj.index = tplg->index;
1810 link->dobj.ops = tplg->ops;
1811 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1812
1813 if (strlen(pcm->pcm_name)) {
1814 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1815 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1816 if (!link->name || !link->stream_name) {
1817 ret = -ENOMEM;
1818 goto err;
1819 }
1820 }
1821 link->id = le32_to_cpu(pcm->pcm_id);
1822
1823 if (strlen(pcm->dai_name)) {
1824 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1825 if (!link->cpus->dai_name) {
1826 ret = -ENOMEM;
1827 goto err;
1828 }
1829 }
1830
1831 link->codecs->name = "snd-soc-dummy";
1832 link->codecs->dai_name = "snd-soc-dummy-dai";
1833
1834 link->platforms->name = "snd-soc-dummy";
1835
1836 /* enable DPCM */
1837 link->dynamic = 1;
1838 link->dpcm_playback = le32_to_cpu(pcm->playback);
1839 link->dpcm_capture = le32_to_cpu(pcm->capture);
1840 if (pcm->flag_mask)
1841 set_link_flags(link,
1842 le32_to_cpu(pcm->flag_mask),
1843 le32_to_cpu(pcm->flags));
1844
1845 /* pass control to component driver for optional further init */
1846 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1847 if (ret < 0) {
1848 dev_err(tplg->dev, "ASoC: FE link loading failed\n");
1849 goto err;
1850 }
1851
1852 ret = snd_soc_add_pcm_runtime(tplg->comp->card, link);
1853 if (ret < 0) {
1854 dev_err(tplg->dev, "ASoC: adding FE link failed\n");
1855 goto err;
1856 }
1857
1858 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1859
1860 return 0;
1861 err:
1862 return ret;
1863 }
1864
1865 /* create a FE DAI and DAI link from the PCM object */
1866 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1867 struct snd_soc_tplg_pcm *pcm)
1868 {
1869 int ret;
1870
1871 ret = soc_tplg_dai_create(tplg, pcm);
1872 if (ret < 0)
1873 return ret;
1874
1875 return soc_tplg_fe_link_create(tplg, pcm);
1876 }
1877
1878 /* copy stream caps from the old version 4 of source */
1879 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1880 struct snd_soc_tplg_stream_caps_v4 *src)
1881 {
1882 dest->size = cpu_to_le32(sizeof(*dest));
1883 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1884 dest->formats = src->formats;
1885 dest->rates = src->rates;
1886 dest->rate_min = src->rate_min;
1887 dest->rate_max = src->rate_max;
1888 dest->channels_min = src->channels_min;
1889 dest->channels_max = src->channels_max;
1890 dest->periods_min = src->periods_min;
1891 dest->periods_max = src->periods_max;
1892 dest->period_size_min = src->period_size_min;
1893 dest->period_size_max = src->period_size_max;
1894 dest->buffer_size_min = src->buffer_size_min;
1895 dest->buffer_size_max = src->buffer_size_max;
1896 }
1897
1898 /**
1899 * pcm_new_ver - Create the new version of PCM from the old version.
1900 * @tplg: topology context
1901 * @src: older version of pcm as a source
1902 * @pcm: latest version of pcm created from the source
1903 *
1904 * Support from vesion 4. User should free the returned pcm manually.
1905 */
1906 static int pcm_new_ver(struct soc_tplg *tplg,
1907 struct snd_soc_tplg_pcm *src,
1908 struct snd_soc_tplg_pcm **pcm)
1909 {
1910 struct snd_soc_tplg_pcm *dest;
1911 struct snd_soc_tplg_pcm_v4 *src_v4;
1912 int i;
1913
1914 *pcm = NULL;
1915
1916 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
1917 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1918 return -EINVAL;
1919 }
1920
1921 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1922 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1923 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1924 if (!dest)
1925 return -ENOMEM;
1926
1927 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
1928 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1929 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1930 dest->pcm_id = src_v4->pcm_id;
1931 dest->dai_id = src_v4->dai_id;
1932 dest->playback = src_v4->playback;
1933 dest->capture = src_v4->capture;
1934 dest->compress = src_v4->compress;
1935 dest->num_streams = src_v4->num_streams;
1936 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
1937 memcpy(&dest->stream[i], &src_v4->stream[i],
1938 sizeof(struct snd_soc_tplg_stream));
1939
1940 for (i = 0; i < 2; i++)
1941 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
1942
1943 *pcm = dest;
1944 return 0;
1945 }
1946
1947 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1948 struct snd_soc_tplg_hdr *hdr)
1949 {
1950 struct snd_soc_tplg_pcm *pcm, *_pcm;
1951 int count;
1952 int size;
1953 int i;
1954 bool abi_match;
1955 int ret;
1956
1957 count = le32_to_cpu(hdr->count);
1958
1959 /* check the element size and count */
1960 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1961 size = le32_to_cpu(pcm->size);
1962 if (size > sizeof(struct snd_soc_tplg_pcm)
1963 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
1964 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1965 size);
1966 return -EINVAL;
1967 }
1968
1969 if (soc_tplg_check_elem_count(tplg,
1970 size, count,
1971 le32_to_cpu(hdr->payload_size),
1972 "PCM DAI")) {
1973 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
1974 count);
1975 return -EINVAL;
1976 }
1977
1978 for (i = 0; i < count; i++) {
1979 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1980 size = le32_to_cpu(pcm->size);
1981
1982 /* check ABI version by size, create a new version of pcm
1983 * if abi not match.
1984 */
1985 if (size == sizeof(*pcm)) {
1986 abi_match = true;
1987 _pcm = pcm;
1988 } else {
1989 abi_match = false;
1990 ret = pcm_new_ver(tplg, pcm, &_pcm);
1991 if (ret < 0)
1992 return ret;
1993 }
1994
1995 /* create the FE DAIs and DAI links */
1996 ret = soc_tplg_pcm_create(tplg, _pcm);
1997 if (ret < 0) {
1998 if (!abi_match)
1999 kfree(_pcm);
2000 return ret;
2001 }
2002
2003 /* offset by version-specific struct size and
2004 * real priv data size
2005 */
2006 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2007
2008 if (!abi_match)
2009 kfree(_pcm); /* free the duplicated one */
2010 }
2011
2012 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2013
2014 return 0;
2015 }
2016
2017 /**
2018 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2019 * @link: &snd_soc_dai_link which should be updated
2020 * @cfg: physical link configs.
2021 *
2022 * Topology context contains a list of supported HW formats (configs) and
2023 * a default format ID for the physical link. This function will use this
2024 * default ID to choose the HW format to set the link's DAI format for init.
2025 */
2026 static void set_link_hw_format(struct snd_soc_dai_link *link,
2027 struct snd_soc_tplg_link_config *cfg)
2028 {
2029 struct snd_soc_tplg_hw_config *hw_config;
2030 unsigned char bclk_provider, fsync_provider;
2031 unsigned char invert_bclk, invert_fsync;
2032 int i;
2033
2034 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2035 hw_config = &cfg->hw_config[i];
2036 if (hw_config->id != cfg->default_hw_config_id)
2037 continue;
2038
2039 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2040 SND_SOC_DAIFMT_FORMAT_MASK;
2041
2042 /* clock gating */
2043 switch (hw_config->clock_gated) {
2044 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2045 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2046 break;
2047
2048 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2049 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2050 break;
2051
2052 default:
2053 /* ignore the value */
2054 break;
2055 }
2056
2057 /* clock signal polarity */
2058 invert_bclk = hw_config->invert_bclk;
2059 invert_fsync = hw_config->invert_fsync;
2060 if (!invert_bclk && !invert_fsync)
2061 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2062 else if (!invert_bclk && invert_fsync)
2063 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2064 else if (invert_bclk && !invert_fsync)
2065 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2066 else
2067 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2068
2069 /* clock masters */
2070 bclk_provider = (hw_config->bclk_provider ==
2071 SND_SOC_TPLG_BCLK_CP);
2072 fsync_provider = (hw_config->fsync_provider ==
2073 SND_SOC_TPLG_FSYNC_CP);
2074 if (bclk_provider && fsync_provider)
2075 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
2076 else if (!bclk_provider && fsync_provider)
2077 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP;
2078 else if (bclk_provider && !fsync_provider)
2079 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC;
2080 else
2081 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
2082 }
2083 }
2084
2085 /**
2086 * link_new_ver - Create a new physical link config from the old
2087 * version of source.
2088 * @tplg: topology context
2089 * @src: old version of phyical link config as a source
2090 * @link: latest version of physical link config created from the source
2091 *
2092 * Support from vesion 4. User need free the returned link config manually.
2093 */
2094 static int link_new_ver(struct soc_tplg *tplg,
2095 struct snd_soc_tplg_link_config *src,
2096 struct snd_soc_tplg_link_config **link)
2097 {
2098 struct snd_soc_tplg_link_config *dest;
2099 struct snd_soc_tplg_link_config_v4 *src_v4;
2100 int i;
2101
2102 *link = NULL;
2103
2104 if (le32_to_cpu(src->size) !=
2105 sizeof(struct snd_soc_tplg_link_config_v4)) {
2106 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2107 return -EINVAL;
2108 }
2109
2110 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2111
2112 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2113 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2114 if (!dest)
2115 return -ENOMEM;
2116
2117 dest->size = cpu_to_le32(sizeof(*dest));
2118 dest->id = src_v4->id;
2119 dest->num_streams = src_v4->num_streams;
2120 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2121 memcpy(&dest->stream[i], &src_v4->stream[i],
2122 sizeof(struct snd_soc_tplg_stream));
2123
2124 *link = dest;
2125 return 0;
2126 }
2127
2128 /**
2129 * snd_soc_find_dai_link - Find a DAI link
2130 *
2131 * @card: soc card
2132 * @id: DAI link ID to match
2133 * @name: DAI link name to match, optional
2134 * @stream_name: DAI link stream name to match, optional
2135 *
2136 * This function will search all existing DAI links of the soc card to
2137 * find the link of the same ID. Since DAI links may not have their
2138 * unique ID, so name and stream name should also match if being
2139 * specified.
2140 *
2141 * Return: pointer of DAI link, or NULL if not found.
2142 */
2143 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
2144 int id, const char *name,
2145 const char *stream_name)
2146 {
2147 struct snd_soc_pcm_runtime *rtd;
2148 struct snd_soc_dai_link *link;
2149
2150 for_each_card_rtds(card, rtd) {
2151 link = rtd->dai_link;
2152
2153 if (link->id != id)
2154 continue;
2155
2156 if (name && (!link->name || strcmp(name, link->name)))
2157 continue;
2158
2159 if (stream_name && (!link->stream_name
2160 || strcmp(stream_name, link->stream_name)))
2161 continue;
2162
2163 return link;
2164 }
2165
2166 return NULL;
2167 }
2168
2169 /* Find and configure an existing physical DAI link */
2170 static int soc_tplg_link_config(struct soc_tplg *tplg,
2171 struct snd_soc_tplg_link_config *cfg)
2172 {
2173 struct snd_soc_dai_link *link;
2174 const char *name, *stream_name;
2175 size_t len;
2176 int ret;
2177
2178 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2179 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2180 return -EINVAL;
2181 else if (len)
2182 name = cfg->name;
2183 else
2184 name = NULL;
2185
2186 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2187 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2188 return -EINVAL;
2189 else if (len)
2190 stream_name = cfg->stream_name;
2191 else
2192 stream_name = NULL;
2193
2194 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2195 name, stream_name);
2196 if (!link) {
2197 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2198 name, cfg->id);
2199 return -EINVAL;
2200 }
2201
2202 /* hw format */
2203 if (cfg->num_hw_configs)
2204 set_link_hw_format(link, cfg);
2205
2206 /* flags */
2207 if (cfg->flag_mask)
2208 set_link_flags(link,
2209 le32_to_cpu(cfg->flag_mask),
2210 le32_to_cpu(cfg->flags));
2211
2212 /* pass control to component driver for optional further init */
2213 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2214 if (ret < 0) {
2215 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2216 return ret;
2217 }
2218
2219 /* for unloading it in snd_soc_tplg_component_remove */
2220 link->dobj.index = tplg->index;
2221 link->dobj.ops = tplg->ops;
2222 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2223 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2224
2225 return 0;
2226 }
2227
2228
2229 /* Load physical link config elements from the topology context */
2230 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2231 struct snd_soc_tplg_hdr *hdr)
2232 {
2233 struct snd_soc_tplg_link_config *link, *_link;
2234 int count;
2235 int size;
2236 int i, ret;
2237 bool abi_match;
2238
2239 count = le32_to_cpu(hdr->count);
2240
2241 /* check the element size and count */
2242 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2243 size = le32_to_cpu(link->size);
2244 if (size > sizeof(struct snd_soc_tplg_link_config)
2245 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2246 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2247 size);
2248 return -EINVAL;
2249 }
2250
2251 if (soc_tplg_check_elem_count(tplg,
2252 size, count,
2253 le32_to_cpu(hdr->payload_size),
2254 "physical link config")) {
2255 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2256 count);
2257 return -EINVAL;
2258 }
2259
2260 /* config physical DAI links */
2261 for (i = 0; i < count; i++) {
2262 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2263 size = le32_to_cpu(link->size);
2264 if (size == sizeof(*link)) {
2265 abi_match = true;
2266 _link = link;
2267 } else {
2268 abi_match = false;
2269 ret = link_new_ver(tplg, link, &_link);
2270 if (ret < 0)
2271 return ret;
2272 }
2273
2274 ret = soc_tplg_link_config(tplg, _link);
2275 if (ret < 0) {
2276 if (!abi_match)
2277 kfree(_link);
2278 return ret;
2279 }
2280
2281 /* offset by version-specific struct size and
2282 * real priv data size
2283 */
2284 tplg->pos += size + le32_to_cpu(_link->priv.size);
2285
2286 if (!abi_match)
2287 kfree(_link); /* free the duplicated one */
2288 }
2289
2290 return 0;
2291 }
2292
2293 /**
2294 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2295 * @tplg: topology context
2296 * @d: physical DAI configs.
2297 *
2298 * The physical dai should already be registered by the platform driver.
2299 * The platform driver should specify the DAI name and ID for matching.
2300 */
2301 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2302 struct snd_soc_tplg_dai *d)
2303 {
2304 struct snd_soc_dai_link_component dai_component;
2305 struct snd_soc_dai *dai;
2306 struct snd_soc_dai_driver *dai_drv;
2307 struct snd_soc_pcm_stream *stream;
2308 struct snd_soc_tplg_stream_caps *caps;
2309 int ret;
2310
2311 memset(&dai_component, 0, sizeof(dai_component));
2312
2313 dai_component.dai_name = d->dai_name;
2314 dai = snd_soc_find_dai(&dai_component);
2315 if (!dai) {
2316 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2317 d->dai_name);
2318 return -EINVAL;
2319 }
2320
2321 if (le32_to_cpu(d->dai_id) != dai->id) {
2322 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2323 d->dai_name);
2324 return -EINVAL;
2325 }
2326
2327 dai_drv = dai->driver;
2328 if (!dai_drv)
2329 return -EINVAL;
2330
2331 if (d->playback) {
2332 stream = &dai_drv->playback;
2333 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2334 ret = set_stream_info(tplg, stream, caps);
2335 if (ret < 0)
2336 goto err;
2337 }
2338
2339 if (d->capture) {
2340 stream = &dai_drv->capture;
2341 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2342 ret = set_stream_info(tplg, stream, caps);
2343 if (ret < 0)
2344 goto err;
2345 }
2346
2347 if (d->flag_mask)
2348 set_dai_flags(dai_drv,
2349 le32_to_cpu(d->flag_mask),
2350 le32_to_cpu(d->flags));
2351
2352 /* pass control to component driver for optional further init */
2353 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2354 if (ret < 0) {
2355 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
2356 goto err;
2357 }
2358
2359 return 0;
2360
2361 err:
2362 return ret;
2363 }
2364
2365 /* load physical DAI elements */
2366 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2367 struct snd_soc_tplg_hdr *hdr)
2368 {
2369 struct snd_soc_tplg_dai *dai;
2370 int count;
2371 int i, ret;
2372
2373 count = le32_to_cpu(hdr->count);
2374
2375 /* config the existing BE DAIs */
2376 for (i = 0; i < count; i++) {
2377 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2378 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2379 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2380 return -EINVAL;
2381 }
2382
2383 ret = soc_tplg_dai_config(tplg, dai);
2384 if (ret < 0) {
2385 dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
2386 return ret;
2387 }
2388
2389 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2390 }
2391
2392 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2393 return 0;
2394 }
2395
2396 /**
2397 * manifest_new_ver - Create a new version of manifest from the old version
2398 * of source.
2399 * @tplg: topology context
2400 * @src: old version of manifest as a source
2401 * @manifest: latest version of manifest created from the source
2402 *
2403 * Support from vesion 4. Users need free the returned manifest manually.
2404 */
2405 static int manifest_new_ver(struct soc_tplg *tplg,
2406 struct snd_soc_tplg_manifest *src,
2407 struct snd_soc_tplg_manifest **manifest)
2408 {
2409 struct snd_soc_tplg_manifest *dest;
2410 struct snd_soc_tplg_manifest_v4 *src_v4;
2411 int size;
2412
2413 *manifest = NULL;
2414
2415 size = le32_to_cpu(src->size);
2416 if (size != sizeof(*src_v4)) {
2417 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2418 size);
2419 if (size)
2420 return -EINVAL;
2421 src->size = cpu_to_le32(sizeof(*src_v4));
2422 }
2423
2424 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2425
2426 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2427 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2428 GFP_KERNEL);
2429 if (!dest)
2430 return -ENOMEM;
2431
2432 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2433 dest->control_elems = src_v4->control_elems;
2434 dest->widget_elems = src_v4->widget_elems;
2435 dest->graph_elems = src_v4->graph_elems;
2436 dest->pcm_elems = src_v4->pcm_elems;
2437 dest->dai_link_elems = src_v4->dai_link_elems;
2438 dest->priv.size = src_v4->priv.size;
2439 if (dest->priv.size)
2440 memcpy(dest->priv.data, src_v4->priv.data,
2441 le32_to_cpu(src_v4->priv.size));
2442
2443 *manifest = dest;
2444 return 0;
2445 }
2446
2447 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2448 struct snd_soc_tplg_hdr *hdr)
2449 {
2450 struct snd_soc_tplg_manifest *manifest, *_manifest;
2451 bool abi_match;
2452 int ret = 0;
2453
2454 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2455
2456 /* check ABI version by size, create a new manifest if abi not match */
2457 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2458 abi_match = true;
2459 _manifest = manifest;
2460 } else {
2461 abi_match = false;
2462 ret = manifest_new_ver(tplg, manifest, &_manifest);
2463 if (ret < 0)
2464 return ret;
2465 }
2466
2467 /* pass control to component driver for optional further init */
2468 if (tplg->ops && tplg->ops->manifest)
2469 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2470
2471 if (!abi_match) /* free the duplicated one */
2472 kfree(_manifest);
2473
2474 return ret;
2475 }
2476
2477 /* validate header magic, size and type */
2478 static int soc_valid_header(struct soc_tplg *tplg,
2479 struct snd_soc_tplg_hdr *hdr)
2480 {
2481 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2482 return 0;
2483
2484 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2485 dev_err(tplg->dev,
2486 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2487 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2488 tplg->fw->size);
2489 return -EINVAL;
2490 }
2491
2492 /* big endian firmware objects not supported atm */
2493 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2494 dev_err(tplg->dev,
2495 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2496 tplg->pass, hdr->magic,
2497 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2498 return -EINVAL;
2499 }
2500
2501 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2502 dev_err(tplg->dev,
2503 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2504 tplg->pass, hdr->magic,
2505 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2506 return -EINVAL;
2507 }
2508
2509 /* Support ABI from version 4 */
2510 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2511 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2512 dev_err(tplg->dev,
2513 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2514 tplg->pass, hdr->abi,
2515 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2516 tplg->fw->size);
2517 return -EINVAL;
2518 }
2519
2520 if (hdr->payload_size == 0) {
2521 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2522 soc_tplg_get_hdr_offset(tplg));
2523 return -EINVAL;
2524 }
2525
2526 return 1;
2527 }
2528
2529 /* check header type and call appropriate handler */
2530 static int soc_tplg_load_header(struct soc_tplg *tplg,
2531 struct snd_soc_tplg_hdr *hdr)
2532 {
2533 int (*elem_load)(struct soc_tplg *tplg,
2534 struct snd_soc_tplg_hdr *hdr);
2535 unsigned int hdr_pass;
2536
2537 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2538
2539 tplg->index = le32_to_cpu(hdr->index);
2540
2541 switch (le32_to_cpu(hdr->type)) {
2542 case SND_SOC_TPLG_TYPE_MIXER:
2543 case SND_SOC_TPLG_TYPE_ENUM:
2544 case SND_SOC_TPLG_TYPE_BYTES:
2545 hdr_pass = SOC_TPLG_PASS_MIXER;
2546 elem_load = soc_tplg_kcontrol_elems_load;
2547 break;
2548 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2549 hdr_pass = SOC_TPLG_PASS_GRAPH;
2550 elem_load = soc_tplg_dapm_graph_elems_load;
2551 break;
2552 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2553 hdr_pass = SOC_TPLG_PASS_WIDGET;
2554 elem_load = soc_tplg_dapm_widget_elems_load;
2555 break;
2556 case SND_SOC_TPLG_TYPE_PCM:
2557 hdr_pass = SOC_TPLG_PASS_PCM_DAI;
2558 elem_load = soc_tplg_pcm_elems_load;
2559 break;
2560 case SND_SOC_TPLG_TYPE_DAI:
2561 hdr_pass = SOC_TPLG_PASS_BE_DAI;
2562 elem_load = soc_tplg_dai_elems_load;
2563 break;
2564 case SND_SOC_TPLG_TYPE_DAI_LINK:
2565 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2566 /* physical link configurations */
2567 hdr_pass = SOC_TPLG_PASS_LINK;
2568 elem_load = soc_tplg_link_elems_load;
2569 break;
2570 case SND_SOC_TPLG_TYPE_MANIFEST:
2571 hdr_pass = SOC_TPLG_PASS_MANIFEST;
2572 elem_load = soc_tplg_manifest_load;
2573 break;
2574 default:
2575 /* bespoke vendor data object */
2576 hdr_pass = SOC_TPLG_PASS_VENDOR;
2577 elem_load = soc_tplg_vendor_load;
2578 break;
2579 }
2580
2581 if (tplg->pass == hdr_pass) {
2582 dev_dbg(tplg->dev,
2583 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2584 hdr->payload_size, hdr->type, hdr->version,
2585 hdr->vendor_type, tplg->pass);
2586 return elem_load(tplg, hdr);
2587 }
2588
2589 return 0;
2590 }
2591
2592 /* process the topology file headers */
2593 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2594 {
2595 struct snd_soc_tplg_hdr *hdr;
2596 int ret;
2597
2598 tplg->pass = SOC_TPLG_PASS_START;
2599
2600 /* process the header types from start to end */
2601 while (tplg->pass <= SOC_TPLG_PASS_END) {
2602
2603 tplg->hdr_pos = tplg->fw->data;
2604 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2605
2606 while (!soc_tplg_is_eof(tplg)) {
2607
2608 /* make sure header is valid before loading */
2609 ret = soc_valid_header(tplg, hdr);
2610 if (ret < 0) {
2611 dev_err(tplg->dev,
2612 "ASoC: topology: invalid header: %d\n", ret);
2613 return ret;
2614 } else if (ret == 0) {
2615 break;
2616 }
2617
2618 /* load the header object */
2619 ret = soc_tplg_load_header(tplg, hdr);
2620 if (ret < 0) {
2621 dev_err(tplg->dev,
2622 "ASoC: topology: could not load header: %d\n", ret);
2623 return ret;
2624 }
2625
2626 /* goto next header */
2627 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2628 sizeof(struct snd_soc_tplg_hdr);
2629 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2630 }
2631
2632 /* next data type pass */
2633 tplg->pass++;
2634 }
2635
2636 /* signal DAPM we are complete */
2637 ret = soc_tplg_dapm_complete(tplg);
2638 if (ret < 0)
2639 dev_err(tplg->dev,
2640 "ASoC: failed to initialise DAPM from Firmware\n");
2641
2642 return ret;
2643 }
2644
2645 static int soc_tplg_load(struct soc_tplg *tplg)
2646 {
2647 int ret;
2648
2649 ret = soc_tplg_process_headers(tplg);
2650 if (ret == 0)
2651 soc_tplg_complete(tplg);
2652
2653 return ret;
2654 }
2655
2656 /* load audio component topology from "firmware" file */
2657 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2658 struct snd_soc_tplg_ops *ops, const struct firmware *fw)
2659 {
2660 struct soc_tplg tplg;
2661 int ret;
2662
2663 /*
2664 * check if we have sane parameters:
2665 * comp - needs to exist to keep and reference data while parsing
2666 * comp->dev - used for resource management and prints
2667 * comp->card - used for setting card related parameters
2668 * fw - we need it, as it is the very thing we parse
2669 */
2670 if (!comp || !comp->dev || !comp->card || !fw)
2671 return -EINVAL;
2672
2673 /* setup parsing context */
2674 memset(&tplg, 0, sizeof(tplg));
2675 tplg.fw = fw;
2676 tplg.dev = comp->dev;
2677 tplg.comp = comp;
2678 if (ops) {
2679 tplg.ops = ops;
2680 tplg.io_ops = ops->io_ops;
2681 tplg.io_ops_count = ops->io_ops_count;
2682 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2683 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2684 }
2685
2686 ret = soc_tplg_load(&tplg);
2687 /* free the created components if fail to load topology */
2688 if (ret)
2689 snd_soc_tplg_component_remove(comp);
2690
2691 return ret;
2692 }
2693 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2694
2695 /* remove dynamic controls from the component driver */
2696 int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
2697 {
2698 struct snd_soc_dobj *dobj, *next_dobj;
2699 int pass = SOC_TPLG_PASS_END;
2700
2701 /* process the header types from end to start */
2702 while (pass >= SOC_TPLG_PASS_START) {
2703
2704 /* remove mixer controls */
2705 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2706 list) {
2707
2708 switch (dobj->type) {
2709 case SND_SOC_DOBJ_MIXER:
2710 remove_mixer(comp, dobj, pass);
2711 break;
2712 case SND_SOC_DOBJ_ENUM:
2713 remove_enum(comp, dobj, pass);
2714 break;
2715 case SND_SOC_DOBJ_BYTES:
2716 remove_bytes(comp, dobj, pass);
2717 break;
2718 case SND_SOC_DOBJ_GRAPH:
2719 remove_route(comp, dobj, pass);
2720 break;
2721 case SND_SOC_DOBJ_WIDGET:
2722 remove_widget(comp, dobj, pass);
2723 break;
2724 case SND_SOC_DOBJ_PCM:
2725 remove_dai(comp, dobj, pass);
2726 break;
2727 case SND_SOC_DOBJ_DAI_LINK:
2728 remove_link(comp, dobj, pass);
2729 break;
2730 case SND_SOC_DOBJ_BACKEND_LINK:
2731 /*
2732 * call link_unload ops if extra
2733 * deinitialization is needed.
2734 */
2735 remove_backend_link(comp, dobj, pass);
2736 break;
2737 default:
2738 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2739 dobj->type);
2740 break;
2741 }
2742 }
2743 pass--;
2744 }
2745
2746 /* let caller know if FW can be freed when no objects are left */
2747 return !list_empty(&comp->dobj_list);
2748 }
2749 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
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