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ARM: dts: omap5: Add bus_dma_limit for L3 bus
[linux/fpc-iii.git] / sound / soc / soc-topology.c
blob56a7142f15a008ea3b14a365668a6aa532bf6722
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_dai_link(comp->card, link);
553
554 kfree(link->name);
555 kfree(link->stream_name);
556 kfree(link->cpus->dai_name);
557 kfree(link);
558 }
559
560 /* unload dai link */
561 static void remove_backend_link(struct snd_soc_component *comp,
562 struct snd_soc_dobj *dobj, int pass)
563 {
564 if (pass != SOC_TPLG_PASS_LINK)
565 return;
566
567 if (dobj->ops && dobj->ops->link_unload)
568 dobj->ops->link_unload(comp, dobj);
569
570 /*
571 * We don't free the link here as what remove_link() do since BE
572 * links are not allocated by topology.
573 * We however need to reset the dobj type to its initial values
574 */
575 dobj->type = SND_SOC_DOBJ_NONE;
576 list_del(&dobj->list);
577 }
578
579 /* bind a kcontrol to it's IO handlers */
580 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
581 struct snd_kcontrol_new *k,
582 const struct soc_tplg *tplg)
583 {
584 const struct snd_soc_tplg_kcontrol_ops *ops;
585 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
586 int num_ops, i;
587
588 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
589 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
590 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE
591 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
592 struct soc_bytes_ext *sbe;
593 struct snd_soc_tplg_bytes_control *be;
594
595 sbe = (struct soc_bytes_ext *)k->private_value;
596 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
597
598 /* TLV bytes controls need standard kcontrol info handler,
599 * TLV callback and extended put/get handlers.
600 */
601 k->info = snd_soc_bytes_info_ext;
602 k->tlv.c = snd_soc_bytes_tlv_callback;
603
604 ext_ops = tplg->bytes_ext_ops;
605 num_ops = tplg->bytes_ext_ops_count;
606 for (i = 0; i < num_ops; i++) {
607 if (!sbe->put &&
608 ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
609 sbe->put = ext_ops[i].put;
610 if (!sbe->get &&
611 ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
612 sbe->get = ext_ops[i].get;
613 }
614
615 if (sbe->put && sbe->get)
616 return 0;
617 else
618 return -EINVAL;
619 }
620
621 /* try and map vendor specific kcontrol handlers first */
622 ops = tplg->io_ops;
623 num_ops = tplg->io_ops_count;
624 for (i = 0; i < num_ops; i++) {
625
626 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
627 k->put = ops[i].put;
628 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
629 k->get = ops[i].get;
630 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
631 k->info = ops[i].info;
632 }
633
634 /* vendor specific handlers found ? */
635 if (k->put && k->get && k->info)
636 return 0;
637
638 /* none found so try standard kcontrol handlers */
639 ops = io_ops;
640 num_ops = ARRAY_SIZE(io_ops);
641 for (i = 0; i < num_ops; i++) {
642
643 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
644 k->put = ops[i].put;
645 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
646 k->get = ops[i].get;
647 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
648 k->info = ops[i].info;
649 }
650
651 /* standard handlers found ? */
652 if (k->put && k->get && k->info)
653 return 0;
654
655 /* nothing to bind */
656 return -EINVAL;
657 }
658
659 /* bind a widgets to it's evnt handlers */
660 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
661 const struct snd_soc_tplg_widget_events *events,
662 int num_events, u16 event_type)
663 {
664 int i;
665
666 w->event = NULL;
667
668 for (i = 0; i < num_events; i++) {
669 if (event_type == events[i].type) {
670
671 /* found - so assign event */
672 w->event = events[i].event_handler;
673 return 0;
674 }
675 }
676
677 /* not found */
678 return -EINVAL;
679 }
680 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
681
682 /* optionally pass new dynamic kcontrol to component driver. */
683 static int soc_tplg_init_kcontrol(struct soc_tplg *tplg,
684 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
685 {
686 if (tplg->comp && tplg->ops && tplg->ops->control_load)
687 return tplg->ops->control_load(tplg->comp, tplg->index, k,
688 hdr);
689
690 return 0;
691 }
692
693
694 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
695 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
696 {
697 unsigned int item_len = 2 * sizeof(unsigned int);
698 unsigned int *p;
699
700 p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
701 if (!p)
702 return -ENOMEM;
703
704 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
705 p[1] = item_len;
706 p[2] = le32_to_cpu(scale->min);
707 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
708 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
709
710 kc->tlv.p = (void *)p;
711 return 0;
712 }
713
714 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
715 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
716 {
717 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
718 u32 access = le32_to_cpu(tc->access);
719
720 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
721 return 0;
722
723 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
724 tplg_tlv = &tc->tlv;
725 switch (le32_to_cpu(tplg_tlv->type)) {
726 case SNDRV_CTL_TLVT_DB_SCALE:
727 return soc_tplg_create_tlv_db_scale(tplg, kc,
728 &tplg_tlv->scale);
729
730 /* TODO: add support for other TLV types */
731 default:
732 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
733 tplg_tlv->type);
734 return -EINVAL;
735 }
736 }
737
738 return 0;
739 }
740
741 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
742 struct snd_kcontrol_new *kc)
743 {
744 kfree(kc->tlv.p);
745 }
746
747 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
748 size_t size)
749 {
750 struct snd_soc_tplg_bytes_control *be;
751 struct soc_bytes_ext *sbe;
752 struct snd_kcontrol_new kc;
753 int i, err;
754
755 if (soc_tplg_check_elem_count(tplg,
756 sizeof(struct snd_soc_tplg_bytes_control), count,
757 size, "mixer bytes")) {
758 dev_err(tplg->dev, "ASoC: Invalid count %d for byte control\n",
759 count);
760 return -EINVAL;
761 }
762
763 for (i = 0; i < count; i++) {
764 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
765
766 /* validate kcontrol */
767 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
768 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
769 return -EINVAL;
770
771 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
772 if (sbe == NULL)
773 return -ENOMEM;
774
775 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
776 le32_to_cpu(be->priv.size));
777
778 dev_dbg(tplg->dev,
779 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
780 be->hdr.name, be->hdr.access);
781
782 memset(&kc, 0, sizeof(kc));
783 kc.name = be->hdr.name;
784 kc.private_value = (long)sbe;
785 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
786 kc.access = le32_to_cpu(be->hdr.access);
787
788 sbe->max = le32_to_cpu(be->max);
789 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
790 sbe->dobj.ops = tplg->ops;
791 INIT_LIST_HEAD(&sbe->dobj.list);
792
793 /* map io handlers */
794 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
795 if (err) {
796 soc_control_err(tplg, &be->hdr, be->hdr.name);
797 kfree(sbe);
798 continue;
799 }
800
801 /* pass control to driver for optional further init */
802 err = soc_tplg_init_kcontrol(tplg, &kc,
803 (struct snd_soc_tplg_ctl_hdr *)be);
804 if (err < 0) {
805 dev_err(tplg->dev, "ASoC: failed to init %s\n",
806 be->hdr.name);
807 kfree(sbe);
808 continue;
809 }
810
811 /* register control here */
812 err = soc_tplg_add_kcontrol(tplg, &kc,
813 &sbe->dobj.control.kcontrol);
814 if (err < 0) {
815 dev_err(tplg->dev, "ASoC: failed to add %s\n",
816 be->hdr.name);
817 kfree(sbe);
818 continue;
819 }
820
821 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
822 }
823 return 0;
824
825 }
826
827 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
828 size_t size)
829 {
830 struct snd_soc_tplg_mixer_control *mc;
831 struct soc_mixer_control *sm;
832 struct snd_kcontrol_new kc;
833 int i, err;
834
835 if (soc_tplg_check_elem_count(tplg,
836 sizeof(struct snd_soc_tplg_mixer_control),
837 count, size, "mixers")) {
838
839 dev_err(tplg->dev, "ASoC: invalid count %d for controls\n",
840 count);
841 return -EINVAL;
842 }
843
844 for (i = 0; i < count; i++) {
845 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
846
847 /* validate kcontrol */
848 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
849 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
850 return -EINVAL;
851
852 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
853 if (sm == NULL)
854 return -ENOMEM;
855 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
856 le32_to_cpu(mc->priv.size));
857
858 dev_dbg(tplg->dev,
859 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
860 mc->hdr.name, mc->hdr.access);
861
862 memset(&kc, 0, sizeof(kc));
863 kc.name = mc->hdr.name;
864 kc.private_value = (long)sm;
865 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
866 kc.access = le32_to_cpu(mc->hdr.access);
867
868 /* we only support FL/FR channel mapping atm */
869 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
870 SNDRV_CHMAP_FL);
871 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
872 SNDRV_CHMAP_FR);
873 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
874 SNDRV_CHMAP_FL);
875 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
876 SNDRV_CHMAP_FR);
877
878 sm->max = le32_to_cpu(mc->max);
879 sm->min = le32_to_cpu(mc->min);
880 sm->invert = le32_to_cpu(mc->invert);
881 sm->platform_max = le32_to_cpu(mc->platform_max);
882 sm->dobj.index = tplg->index;
883 sm->dobj.ops = tplg->ops;
884 sm->dobj.type = SND_SOC_DOBJ_MIXER;
885 INIT_LIST_HEAD(&sm->dobj.list);
886
887 /* map io handlers */
888 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
889 if (err) {
890 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
891 kfree(sm);
892 continue;
893 }
894
895 /* create any TLV data */
896 soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
897
898 /* pass control to driver for optional further init */
899 err = soc_tplg_init_kcontrol(tplg, &kc,
900 (struct snd_soc_tplg_ctl_hdr *) mc);
901 if (err < 0) {
902 dev_err(tplg->dev, "ASoC: failed to init %s\n",
903 mc->hdr.name);
904 soc_tplg_free_tlv(tplg, &kc);
905 kfree(sm);
906 continue;
907 }
908
909 /* register control here */
910 err = soc_tplg_add_kcontrol(tplg, &kc,
911 &sm->dobj.control.kcontrol);
912 if (err < 0) {
913 dev_err(tplg->dev, "ASoC: failed to add %s\n",
914 mc->hdr.name);
915 soc_tplg_free_tlv(tplg, &kc);
916 kfree(sm);
917 continue;
918 }
919
920 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
921 }
922
923 return 0;
924 }
925
926 static int soc_tplg_denum_create_texts(struct soc_enum *se,
927 struct snd_soc_tplg_enum_control *ec)
928 {
929 int i, ret;
930
931 se->dobj.control.dtexts =
932 kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
933 if (se->dobj.control.dtexts == NULL)
934 return -ENOMEM;
935
936 for (i = 0; i < le32_to_cpu(ec->items); i++) {
937
938 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
939 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
940 ret = -EINVAL;
941 goto err;
942 }
943
944 se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
945 if (!se->dobj.control.dtexts[i]) {
946 ret = -ENOMEM;
947 goto err;
948 }
949 }
950
951 se->items = le32_to_cpu(ec->items);
952 se->texts = (const char * const *)se->dobj.control.dtexts;
953 return 0;
954
955 err:
956 se->items = i;
957 soc_tplg_denum_remove_texts(se);
958 return ret;
959 }
960
961 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
962 {
963 int i = se->items;
964
965 for (--i; i >= 0; i--)
966 kfree(se->dobj.control.dtexts[i]);
967 kfree(se->dobj.control.dtexts);
968 }
969
970 static int soc_tplg_denum_create_values(struct soc_enum *se,
971 struct snd_soc_tplg_enum_control *ec)
972 {
973 int i;
974
975 if (le32_to_cpu(ec->items) > sizeof(*ec->values))
976 return -EINVAL;
977
978 se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
979 sizeof(u32),
980 GFP_KERNEL);
981 if (!se->dobj.control.dvalues)
982 return -ENOMEM;
983
984 /* convert from little-endian */
985 for (i = 0; i < le32_to_cpu(ec->items); i++) {
986 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
987 }
988
989 return 0;
990 }
991
992 static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
993 {
994 kfree(se->dobj.control.dvalues);
995 }
996
997 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
998 size_t size)
999 {
1000 struct snd_soc_tplg_enum_control *ec;
1001 struct soc_enum *se;
1002 struct snd_kcontrol_new kc;
1003 int i, ret, err;
1004
1005 if (soc_tplg_check_elem_count(tplg,
1006 sizeof(struct snd_soc_tplg_enum_control),
1007 count, size, "enums")) {
1008
1009 dev_err(tplg->dev, "ASoC: invalid count %d for enum controls\n",
1010 count);
1011 return -EINVAL;
1012 }
1013
1014 for (i = 0; i < count; i++) {
1015 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1016
1017 /* validate kcontrol */
1018 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1019 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1020 return -EINVAL;
1021
1022 se = kzalloc((sizeof(*se)), GFP_KERNEL);
1023 if (se == NULL)
1024 return -ENOMEM;
1025
1026 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1027 le32_to_cpu(ec->priv.size));
1028
1029 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
1030 ec->hdr.name, ec->items);
1031
1032 memset(&kc, 0, sizeof(kc));
1033 kc.name = ec->hdr.name;
1034 kc.private_value = (long)se;
1035 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1036 kc.access = le32_to_cpu(ec->hdr.access);
1037
1038 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1039 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1040 SNDRV_CHMAP_FL);
1041 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1042 SNDRV_CHMAP_FL);
1043
1044 se->mask = le32_to_cpu(ec->mask);
1045 se->dobj.index = tplg->index;
1046 se->dobj.type = SND_SOC_DOBJ_ENUM;
1047 se->dobj.ops = tplg->ops;
1048 INIT_LIST_HEAD(&se->dobj.list);
1049
1050 switch (le32_to_cpu(ec->hdr.ops.info)) {
1051 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1052 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1053 err = soc_tplg_denum_create_values(se, ec);
1054 if (err < 0) {
1055 dev_err(tplg->dev,
1056 "ASoC: could not create values for %s\n",
1057 ec->hdr.name);
1058 kfree(se);
1059 continue;
1060 }
1061 /* fall through */
1062 case SND_SOC_TPLG_CTL_ENUM:
1063 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1064 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1065 err = soc_tplg_denum_create_texts(se, ec);
1066 if (err < 0) {
1067 dev_err(tplg->dev,
1068 "ASoC: could not create texts for %s\n",
1069 ec->hdr.name);
1070 kfree(se);
1071 continue;
1072 }
1073 break;
1074 default:
1075 dev_err(tplg->dev,
1076 "ASoC: invalid enum control type %d for %s\n",
1077 ec->hdr.ops.info, ec->hdr.name);
1078 kfree(se);
1079 continue;
1080 }
1081
1082 /* map io handlers */
1083 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
1084 if (err) {
1085 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1086 kfree(se);
1087 continue;
1088 }
1089
1090 /* pass control to driver for optional further init */
1091 err = soc_tplg_init_kcontrol(tplg, &kc,
1092 (struct snd_soc_tplg_ctl_hdr *) ec);
1093 if (err < 0) {
1094 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1095 ec->hdr.name);
1096 kfree(se);
1097 continue;
1098 }
1099
1100 /* register control here */
1101 ret = soc_tplg_add_kcontrol(tplg,
1102 &kc, &se->dobj.control.kcontrol);
1103 if (ret < 0) {
1104 dev_err(tplg->dev, "ASoC: could not add kcontrol %s\n",
1105 ec->hdr.name);
1106 kfree(se);
1107 continue;
1108 }
1109
1110 list_add(&se->dobj.list, &tplg->comp->dobj_list);
1111 }
1112
1113 return 0;
1114 }
1115
1116 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
1117 struct snd_soc_tplg_hdr *hdr)
1118 {
1119 struct snd_soc_tplg_ctl_hdr *control_hdr;
1120 int i;
1121
1122 if (tplg->pass != SOC_TPLG_PASS_MIXER) {
1123 tplg->pos += le32_to_cpu(hdr->size) +
1124 le32_to_cpu(hdr->payload_size);
1125 return 0;
1126 }
1127
1128 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
1129 soc_tplg_get_offset(tplg));
1130
1131 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
1132
1133 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1134
1135 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
1136 dev_err(tplg->dev, "ASoC: invalid control size\n");
1137 return -EINVAL;
1138 }
1139
1140 switch (le32_to_cpu(control_hdr->ops.info)) {
1141 case SND_SOC_TPLG_CTL_VOLSW:
1142 case SND_SOC_TPLG_CTL_STROBE:
1143 case SND_SOC_TPLG_CTL_VOLSW_SX:
1144 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1145 case SND_SOC_TPLG_CTL_RANGE:
1146 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1147 case SND_SOC_TPLG_DAPM_CTL_PIN:
1148 soc_tplg_dmixer_create(tplg, 1,
1149 le32_to_cpu(hdr->payload_size));
1150 break;
1151 case SND_SOC_TPLG_CTL_ENUM:
1152 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1153 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1154 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1155 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1156 soc_tplg_denum_create(tplg, 1,
1157 le32_to_cpu(hdr->payload_size));
1158 break;
1159 case SND_SOC_TPLG_CTL_BYTES:
1160 soc_tplg_dbytes_create(tplg, 1,
1161 le32_to_cpu(hdr->payload_size));
1162 break;
1163 default:
1164 soc_bind_err(tplg, control_hdr, i);
1165 return -EINVAL;
1166 }
1167 }
1168
1169 return 0;
1170 }
1171
1172 /* optionally pass new dynamic kcontrol to component driver. */
1173 static int soc_tplg_add_route(struct soc_tplg *tplg,
1174 struct snd_soc_dapm_route *route)
1175 {
1176 if (tplg->comp && tplg->ops && tplg->ops->dapm_route_load)
1177 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1178 route);
1179
1180 return 0;
1181 }
1182
1183 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1184 struct snd_soc_tplg_hdr *hdr)
1185 {
1186 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1187 struct snd_soc_tplg_dapm_graph_elem *elem;
1188 struct snd_soc_dapm_route **routes;
1189 int count, i, j;
1190 int ret = 0;
1191
1192 count = le32_to_cpu(hdr->count);
1193
1194 if (tplg->pass != SOC_TPLG_PASS_GRAPH) {
1195 tplg->pos +=
1196 le32_to_cpu(hdr->size) +
1197 le32_to_cpu(hdr->payload_size);
1198
1199 return 0;
1200 }
1201
1202 if (soc_tplg_check_elem_count(tplg,
1203 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1204 count, le32_to_cpu(hdr->payload_size), "graph")) {
1205
1206 dev_err(tplg->dev, "ASoC: invalid count %d for DAPM routes\n",
1207 count);
1208 return -EINVAL;
1209 }
1210
1211 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1212 hdr->index);
1213
1214 /* allocate memory for pointer to array of dapm routes */
1215 routes = kcalloc(count, sizeof(struct snd_soc_dapm_route *),
1216 GFP_KERNEL);
1217 if (!routes)
1218 return -ENOMEM;
1219
1220 /*
1221 * allocate memory for each dapm route in the array.
1222 * This needs to be done individually so that
1223 * each route can be freed when it is removed in remove_route().
1224 */
1225 for (i = 0; i < count; i++) {
1226 routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
1227 if (!routes[i]) {
1228 /* free previously allocated memory */
1229 for (j = 0; j < i; j++)
1230 kfree(routes[j]);
1231
1232 kfree(routes);
1233 return -ENOMEM;
1234 }
1235 }
1236
1237 for (i = 0; i < count; i++) {
1238 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1239 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1240
1241 /* validate routes */
1242 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1243 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1244 ret = -EINVAL;
1245 break;
1246 }
1247 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1248 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1249 ret = -EINVAL;
1250 break;
1251 }
1252 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1253 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1254 ret = -EINVAL;
1255 break;
1256 }
1257
1258 routes[i]->source = elem->source;
1259 routes[i]->sink = elem->sink;
1260
1261 /* set to NULL atm for tplg users */
1262 routes[i]->connected = NULL;
1263 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1264 routes[i]->control = NULL;
1265 else
1266 routes[i]->control = elem->control;
1267
1268 /* add route dobj to dobj_list */
1269 routes[i]->dobj.type = SND_SOC_DOBJ_GRAPH;
1270 routes[i]->dobj.ops = tplg->ops;
1271 routes[i]->dobj.index = tplg->index;
1272 list_add(&routes[i]->dobj.list, &tplg->comp->dobj_list);
1273
1274 soc_tplg_add_route(tplg, routes[i]);
1275
1276 /* add route, but keep going if some fail */
1277 snd_soc_dapm_add_routes(dapm, routes[i], 1);
1278 }
1279
1280 /* free memory allocated for all dapm routes in case of error */
1281 if (ret < 0)
1282 for (i = 0; i < count ; i++)
1283 kfree(routes[i]);
1284
1285 /*
1286 * free pointer to array of dapm routes as this is no longer needed.
1287 * The memory allocated for each dapm route will be freed
1288 * when it is removed in remove_route().
1289 */
1290 kfree(routes);
1291
1292 return ret;
1293 }
1294
1295 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
1296 struct soc_tplg *tplg, int num_kcontrols)
1297 {
1298 struct snd_kcontrol_new *kc;
1299 struct soc_mixer_control *sm;
1300 struct snd_soc_tplg_mixer_control *mc;
1301 int i, err;
1302
1303 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1304 if (kc == NULL)
1305 return NULL;
1306
1307 for (i = 0; i < num_kcontrols; i++) {
1308 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1309
1310 /* validate kcontrol */
1311 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1312 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1313 goto err_sm;
1314
1315 sm = kzalloc(sizeof(*sm), GFP_KERNEL);
1316 if (sm == NULL)
1317 goto err_sm;
1318
1319 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
1320 le32_to_cpu(mc->priv.size));
1321
1322 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
1323 mc->hdr.name, i);
1324
1325 kc[i].private_value = (long)sm;
1326 kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
1327 if (kc[i].name == NULL)
1328 goto err_sm;
1329 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1330 kc[i].access = le32_to_cpu(mc->hdr.access);
1331
1332 /* we only support FL/FR channel mapping atm */
1333 sm->reg = tplc_chan_get_reg(tplg, mc->channel,
1334 SNDRV_CHMAP_FL);
1335 sm->rreg = tplc_chan_get_reg(tplg, mc->channel,
1336 SNDRV_CHMAP_FR);
1337 sm->shift = tplc_chan_get_shift(tplg, mc->channel,
1338 SNDRV_CHMAP_FL);
1339 sm->rshift = tplc_chan_get_shift(tplg, mc->channel,
1340 SNDRV_CHMAP_FR);
1341
1342 sm->max = le32_to_cpu(mc->max);
1343 sm->min = le32_to_cpu(mc->min);
1344 sm->invert = le32_to_cpu(mc->invert);
1345 sm->platform_max = le32_to_cpu(mc->platform_max);
1346 sm->dobj.index = tplg->index;
1347 INIT_LIST_HEAD(&sm->dobj.list);
1348
1349 /* map io handlers */
1350 err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc[i], tplg);
1351 if (err) {
1352 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1353 goto err_sm;
1354 }
1355
1356 /* create any TLV data */
1357 soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
1358
1359 /* pass control to driver for optional further init */
1360 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1361 (struct snd_soc_tplg_ctl_hdr *)mc);
1362 if (err < 0) {
1363 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1364 mc->hdr.name);
1365 soc_tplg_free_tlv(tplg, &kc[i]);
1366 goto err_sm;
1367 }
1368 }
1369 return kc;
1370
1371 err_sm:
1372 for (; i >= 0; i--) {
1373 sm = (struct soc_mixer_control *)kc[i].private_value;
1374 kfree(sm);
1375 kfree(kc[i].name);
1376 }
1377 kfree(kc);
1378
1379 return NULL;
1380 }
1381
1382 static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
1383 struct soc_tplg *tplg, int num_kcontrols)
1384 {
1385 struct snd_kcontrol_new *kc;
1386 struct snd_soc_tplg_enum_control *ec;
1387 struct soc_enum *se;
1388 int i, err;
1389
1390 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1391 if (kc == NULL)
1392 return NULL;
1393
1394 for (i = 0; i < num_kcontrols; i++) {
1395 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1396 /* validate kcontrol */
1397 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1398 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1399 goto err_se;
1400
1401 se = kzalloc(sizeof(*se), GFP_KERNEL);
1402 if (se == NULL)
1403 goto err_se;
1404
1405 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1406 le32_to_cpu(ec->priv.size));
1407
1408 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1409 ec->hdr.name);
1410
1411 kc[i].private_value = (long)se;
1412 kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
1413 if (kc[i].name == NULL)
1414 goto err_se;
1415 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1416 kc[i].access = le32_to_cpu(ec->hdr.access);
1417
1418 /* we only support FL/FR channel mapping atm */
1419 se->reg = tplc_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1420 se->shift_l = tplc_chan_get_shift(tplg, ec->channel,
1421 SNDRV_CHMAP_FL);
1422 se->shift_r = tplc_chan_get_shift(tplg, ec->channel,
1423 SNDRV_CHMAP_FR);
1424
1425 se->items = le32_to_cpu(ec->items);
1426 se->mask = le32_to_cpu(ec->mask);
1427 se->dobj.index = tplg->index;
1428
1429 switch (le32_to_cpu(ec->hdr.ops.info)) {
1430 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1431 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1432 err = soc_tplg_denum_create_values(se, ec);
1433 if (err < 0) {
1434 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1435 ec->hdr.name);
1436 goto err_se;
1437 }
1438 /* fall through */
1439 case SND_SOC_TPLG_CTL_ENUM:
1440 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1441 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1442 err = soc_tplg_denum_create_texts(se, ec);
1443 if (err < 0) {
1444 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1445 ec->hdr.name);
1446 goto err_se;
1447 }
1448 break;
1449 default:
1450 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1451 ec->hdr.ops.info, ec->hdr.name);
1452 goto err_se;
1453 }
1454
1455 /* map io handlers */
1456 err = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc[i], tplg);
1457 if (err) {
1458 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1459 goto err_se;
1460 }
1461
1462 /* pass control to driver for optional further init */
1463 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1464 (struct snd_soc_tplg_ctl_hdr *)ec);
1465 if (err < 0) {
1466 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1467 ec->hdr.name);
1468 goto err_se;
1469 }
1470 }
1471
1472 return kc;
1473
1474 err_se:
1475 for (; i >= 0; i--) {
1476 /* free values and texts */
1477 se = (struct soc_enum *)kc[i].private_value;
1478
1479 if (se) {
1480 soc_tplg_denum_remove_values(se);
1481 soc_tplg_denum_remove_texts(se);
1482 }
1483
1484 kfree(se);
1485 kfree(kc[i].name);
1486 }
1487 kfree(kc);
1488
1489 return NULL;
1490 }
1491
1492 static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
1493 struct soc_tplg *tplg, int num_kcontrols)
1494 {
1495 struct snd_soc_tplg_bytes_control *be;
1496 struct soc_bytes_ext *sbe;
1497 struct snd_kcontrol_new *kc;
1498 int i, err;
1499
1500 kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
1501 if (!kc)
1502 return NULL;
1503
1504 for (i = 0; i < num_kcontrols; i++) {
1505 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1506
1507 /* validate kcontrol */
1508 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1509 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1510 goto err_sbe;
1511
1512 sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
1513 if (sbe == NULL)
1514 goto err_sbe;
1515
1516 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1517 le32_to_cpu(be->priv.size));
1518
1519 dev_dbg(tplg->dev,
1520 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1521 be->hdr.name, be->hdr.access);
1522
1523 kc[i].private_value = (long)sbe;
1524 kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
1525 if (kc[i].name == NULL)
1526 goto err_sbe;
1527 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1528 kc[i].access = le32_to_cpu(be->hdr.access);
1529
1530 sbe->max = le32_to_cpu(be->max);
1531 INIT_LIST_HEAD(&sbe->dobj.list);
1532
1533 /* map standard io handlers and check for external handlers */
1534 err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc[i], tplg);
1535 if (err) {
1536 soc_control_err(tplg, &be->hdr, be->hdr.name);
1537 goto err_sbe;
1538 }
1539
1540 /* pass control to driver for optional further init */
1541 err = soc_tplg_init_kcontrol(tplg, &kc[i],
1542 (struct snd_soc_tplg_ctl_hdr *)be);
1543 if (err < 0) {
1544 dev_err(tplg->dev, "ASoC: failed to init %s\n",
1545 be->hdr.name);
1546 goto err_sbe;
1547 }
1548 }
1549
1550 return kc;
1551
1552 err_sbe:
1553 for (; i >= 0; i--) {
1554 sbe = (struct soc_bytes_ext *)kc[i].private_value;
1555 kfree(sbe);
1556 kfree(kc[i].name);
1557 }
1558 kfree(kc);
1559
1560 return NULL;
1561 }
1562
1563 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1564 struct snd_soc_tplg_dapm_widget *w)
1565 {
1566 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1567 struct snd_soc_dapm_widget template, *widget;
1568 struct snd_soc_tplg_ctl_hdr *control_hdr;
1569 struct snd_soc_card *card = tplg->comp->card;
1570 unsigned int kcontrol_type;
1571 int ret = 0;
1572
1573 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1574 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1575 return -EINVAL;
1576 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1577 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1578 return -EINVAL;
1579
1580 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1581 w->name, w->id);
1582
1583 memset(&template, 0, sizeof(template));
1584
1585 /* map user to kernel widget ID */
1586 template.id = get_widget_id(le32_to_cpu(w->id));
1587 if ((int)template.id < 0)
1588 return template.id;
1589
1590 /* strings are allocated here, but used and freed by the widget */
1591 template.name = kstrdup(w->name, GFP_KERNEL);
1592 if (!template.name)
1593 return -ENOMEM;
1594 template.sname = kstrdup(w->sname, GFP_KERNEL);
1595 if (!template.sname) {
1596 ret = -ENOMEM;
1597 goto err;
1598 }
1599 template.reg = le32_to_cpu(w->reg);
1600 template.shift = le32_to_cpu(w->shift);
1601 template.mask = le32_to_cpu(w->mask);
1602 template.subseq = le32_to_cpu(w->subseq);
1603 template.on_val = w->invert ? 0 : 1;
1604 template.off_val = w->invert ? 1 : 0;
1605 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1606 template.event_flags = le16_to_cpu(w->event_flags);
1607 template.dobj.index = tplg->index;
1608
1609 tplg->pos +=
1610 (sizeof(struct snd_soc_tplg_dapm_widget) +
1611 le32_to_cpu(w->priv.size));
1612
1613 if (w->num_kcontrols == 0) {
1614 kcontrol_type = 0;
1615 template.num_kcontrols = 0;
1616 goto widget;
1617 }
1618
1619 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1620 dev_dbg(tplg->dev, "ASoC: template %s has %d controls of type %x\n",
1621 w->name, w->num_kcontrols, control_hdr->type);
1622
1623 switch (le32_to_cpu(control_hdr->ops.info)) {
1624 case SND_SOC_TPLG_CTL_VOLSW:
1625 case SND_SOC_TPLG_CTL_STROBE:
1626 case SND_SOC_TPLG_CTL_VOLSW_SX:
1627 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1628 case SND_SOC_TPLG_CTL_RANGE:
1629 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1630 kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */
1631 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1632 template.kcontrol_news =
1633 soc_tplg_dapm_widget_dmixer_create(tplg,
1634 template.num_kcontrols);
1635 if (!template.kcontrol_news) {
1636 ret = -ENOMEM;
1637 goto hdr_err;
1638 }
1639 break;
1640 case SND_SOC_TPLG_CTL_ENUM:
1641 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1642 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1643 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1644 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1645 kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */
1646 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1647 template.kcontrol_news =
1648 soc_tplg_dapm_widget_denum_create(tplg,
1649 template.num_kcontrols);
1650 if (!template.kcontrol_news) {
1651 ret = -ENOMEM;
1652 goto hdr_err;
1653 }
1654 break;
1655 case SND_SOC_TPLG_CTL_BYTES:
1656 kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */
1657 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1658 template.kcontrol_news =
1659 soc_tplg_dapm_widget_dbytes_create(tplg,
1660 template.num_kcontrols);
1661 if (!template.kcontrol_news) {
1662 ret = -ENOMEM;
1663 goto hdr_err;
1664 }
1665 break;
1666 default:
1667 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1668 control_hdr->ops.get, control_hdr->ops.put,
1669 le32_to_cpu(control_hdr->ops.info));
1670 ret = -EINVAL;
1671 goto hdr_err;
1672 }
1673
1674 widget:
1675 ret = soc_tplg_widget_load(tplg, &template, w);
1676 if (ret < 0)
1677 goto hdr_err;
1678
1679 /* card dapm mutex is held by the core if we are loading topology
1680 * data during sound card init. */
1681 if (card->instantiated)
1682 widget = snd_soc_dapm_new_control(dapm, &template);
1683 else
1684 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1685 if (IS_ERR(widget)) {
1686 ret = PTR_ERR(widget);
1687 goto hdr_err;
1688 }
1689
1690 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1691 widget->dobj.widget.kcontrol_type = kcontrol_type;
1692 widget->dobj.ops = tplg->ops;
1693 widget->dobj.index = tplg->index;
1694 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1695
1696 ret = soc_tplg_widget_ready(tplg, widget, w);
1697 if (ret < 0)
1698 goto ready_err;
1699
1700 kfree(template.sname);
1701 kfree(template.name);
1702
1703 return 0;
1704
1705 ready_err:
1706 snd_soc_tplg_widget_remove(widget);
1707 snd_soc_dapm_free_widget(widget);
1708 hdr_err:
1709 kfree(template.sname);
1710 err:
1711 kfree(template.name);
1712 return ret;
1713 }
1714
1715 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1716 struct snd_soc_tplg_hdr *hdr)
1717 {
1718 struct snd_soc_tplg_dapm_widget *widget;
1719 int ret, count, i;
1720
1721 count = le32_to_cpu(hdr->count);
1722
1723 if (tplg->pass != SOC_TPLG_PASS_WIDGET)
1724 return 0;
1725
1726 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1727
1728 for (i = 0; i < count; i++) {
1729 widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1730 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1731 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1732 return -EINVAL;
1733 }
1734
1735 ret = soc_tplg_dapm_widget_create(tplg, widget);
1736 if (ret < 0) {
1737 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1738 widget->name);
1739 return ret;
1740 }
1741 }
1742
1743 return 0;
1744 }
1745
1746 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1747 {
1748 struct snd_soc_card *card = tplg->comp->card;
1749 int ret;
1750
1751 /* Card might not have been registered at this point.
1752 * If so, just return success.
1753 */
1754 if (!card || !card->instantiated) {
1755 dev_warn(tplg->dev, "ASoC: Parent card not yet available,"
1756 " widget card binding deferred\n");
1757 return 0;
1758 }
1759
1760 ret = snd_soc_dapm_new_widgets(card);
1761 if (ret < 0)
1762 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n",
1763 ret);
1764
1765 return 0;
1766 }
1767
1768 static void set_stream_info(struct snd_soc_pcm_stream *stream,
1769 struct snd_soc_tplg_stream_caps *caps)
1770 {
1771 stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
1772 stream->channels_min = le32_to_cpu(caps->channels_min);
1773 stream->channels_max = le32_to_cpu(caps->channels_max);
1774 stream->rates = le32_to_cpu(caps->rates);
1775 stream->rate_min = le32_to_cpu(caps->rate_min);
1776 stream->rate_max = le32_to_cpu(caps->rate_max);
1777 stream->formats = le64_to_cpu(caps->formats);
1778 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1779 }
1780
1781 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1782 unsigned int flag_mask, unsigned int flags)
1783 {
1784 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1785 dai_drv->symmetric_rates =
1786 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1787
1788 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1789 dai_drv->symmetric_channels =
1790 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS ?
1791 1 : 0;
1792
1793 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1794 dai_drv->symmetric_samplebits =
1795 flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1796 1 : 0;
1797 }
1798
1799 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1800 struct snd_soc_tplg_pcm *pcm)
1801 {
1802 struct snd_soc_dai_driver *dai_drv;
1803 struct snd_soc_pcm_stream *stream;
1804 struct snd_soc_tplg_stream_caps *caps;
1805 struct snd_soc_dai *dai;
1806 struct snd_soc_dapm_context *dapm =
1807 snd_soc_component_get_dapm(tplg->comp);
1808 int ret;
1809
1810 dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1811 if (dai_drv == NULL)
1812 return -ENOMEM;
1813
1814 if (strlen(pcm->dai_name))
1815 dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
1816 dai_drv->id = le32_to_cpu(pcm->dai_id);
1817
1818 if (pcm->playback) {
1819 stream = &dai_drv->playback;
1820 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1821 set_stream_info(stream, caps);
1822 }
1823
1824 if (pcm->capture) {
1825 stream = &dai_drv->capture;
1826 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1827 set_stream_info(stream, caps);
1828 }
1829
1830 if (pcm->compress)
1831 dai_drv->compress_new = snd_soc_new_compress;
1832
1833 /* pass control to component driver for optional further init */
1834 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1835 if (ret < 0) {
1836 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
1837 kfree(dai_drv->playback.stream_name);
1838 kfree(dai_drv->capture.stream_name);
1839 kfree(dai_drv->name);
1840 kfree(dai_drv);
1841 return ret;
1842 }
1843
1844 dai_drv->dobj.index = tplg->index;
1845 dai_drv->dobj.ops = tplg->ops;
1846 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1847 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1848
1849 /* register the DAI to the component */
1850 dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1851 if (!dai)
1852 return -ENOMEM;
1853
1854 /* Create the DAI widgets here */
1855 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1856 if (ret != 0) {
1857 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1858 snd_soc_unregister_dai(dai);
1859 return ret;
1860 }
1861
1862 return ret;
1863 }
1864
1865 static void set_link_flags(struct snd_soc_dai_link *link,
1866 unsigned int flag_mask, unsigned int flags)
1867 {
1868 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1869 link->symmetric_rates =
1870 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES ? 1 : 0;
1871
1872 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1873 link->symmetric_channels =
1874 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS ?
1875 1 : 0;
1876
1877 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1878 link->symmetric_samplebits =
1879 flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS ?
1880 1 : 0;
1881
1882 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1883 link->ignore_suspend =
1884 flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP ?
1885 1 : 0;
1886 }
1887
1888 /* create the FE DAI link */
1889 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1890 struct snd_soc_tplg_pcm *pcm)
1891 {
1892 struct snd_soc_dai_link *link;
1893 struct snd_soc_dai_link_component *dlc;
1894 int ret;
1895
1896 /* link + cpu + codec + platform */
1897 link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1898 if (link == NULL)
1899 return -ENOMEM;
1900
1901 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1902
1903 link->cpus = &dlc[0];
1904 link->codecs = &dlc[1];
1905 link->platforms = &dlc[2];
1906
1907 link->num_cpus = 1;
1908 link->num_codecs = 1;
1909 link->num_platforms = 1;
1910
1911 link->dobj.index = tplg->index;
1912 link->dobj.ops = tplg->ops;
1913 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1914
1915 if (strlen(pcm->pcm_name)) {
1916 link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1917 link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
1918 }
1919 link->id = le32_to_cpu(pcm->pcm_id);
1920
1921 if (strlen(pcm->dai_name))
1922 link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
1923
1924 link->codecs->name = "snd-soc-dummy";
1925 link->codecs->dai_name = "snd-soc-dummy-dai";
1926
1927 link->platforms->name = "snd-soc-dummy";
1928
1929 /* enable DPCM */
1930 link->dynamic = 1;
1931 link->dpcm_playback = le32_to_cpu(pcm->playback);
1932 link->dpcm_capture = le32_to_cpu(pcm->capture);
1933 if (pcm->flag_mask)
1934 set_link_flags(link,
1935 le32_to_cpu(pcm->flag_mask),
1936 le32_to_cpu(pcm->flags));
1937
1938 /* pass control to component driver for optional further init */
1939 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1940 if (ret < 0) {
1941 dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
1942 goto err;
1943 }
1944
1945 ret = snd_soc_add_dai_link(tplg->comp->card, link);
1946 if (ret < 0) {
1947 dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n");
1948 goto err;
1949 }
1950
1951 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1952
1953 return 0;
1954 err:
1955 kfree(link->name);
1956 kfree(link->stream_name);
1957 kfree(link->cpus->dai_name);
1958 kfree(link);
1959 return ret;
1960 }
1961
1962 /* create a FE DAI and DAI link from the PCM object */
1963 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1964 struct snd_soc_tplg_pcm *pcm)
1965 {
1966 int ret;
1967
1968 ret = soc_tplg_dai_create(tplg, pcm);
1969 if (ret < 0)
1970 return ret;
1971
1972 return soc_tplg_fe_link_create(tplg, pcm);
1973 }
1974
1975 /* copy stream caps from the old version 4 of source */
1976 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1977 struct snd_soc_tplg_stream_caps_v4 *src)
1978 {
1979 dest->size = cpu_to_le32(sizeof(*dest));
1980 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1981 dest->formats = src->formats;
1982 dest->rates = src->rates;
1983 dest->rate_min = src->rate_min;
1984 dest->rate_max = src->rate_max;
1985 dest->channels_min = src->channels_min;
1986 dest->channels_max = src->channels_max;
1987 dest->periods_min = src->periods_min;
1988 dest->periods_max = src->periods_max;
1989 dest->period_size_min = src->period_size_min;
1990 dest->period_size_max = src->period_size_max;
1991 dest->buffer_size_min = src->buffer_size_min;
1992 dest->buffer_size_max = src->buffer_size_max;
1993 }
1994
1995 /**
1996 * pcm_new_ver - Create the new version of PCM from the old version.
1997 * @tplg: topology context
1998 * @src: older version of pcm as a source
1999 * @pcm: latest version of pcm created from the source
2000 *
2001 * Support from vesion 4. User should free the returned pcm manually.
2002 */
2003 static int pcm_new_ver(struct soc_tplg *tplg,
2004 struct snd_soc_tplg_pcm *src,
2005 struct snd_soc_tplg_pcm **pcm)
2006 {
2007 struct snd_soc_tplg_pcm *dest;
2008 struct snd_soc_tplg_pcm_v4 *src_v4;
2009 int i;
2010
2011 *pcm = NULL;
2012
2013 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
2014 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
2015 return -EINVAL;
2016 }
2017
2018 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
2019 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
2020 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2021 if (!dest)
2022 return -ENOMEM;
2023
2024 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2025 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2026 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2027 dest->pcm_id = src_v4->pcm_id;
2028 dest->dai_id = src_v4->dai_id;
2029 dest->playback = src_v4->playback;
2030 dest->capture = src_v4->capture;
2031 dest->compress = src_v4->compress;
2032 dest->num_streams = src_v4->num_streams;
2033 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2034 memcpy(&dest->stream[i], &src_v4->stream[i],
2035 sizeof(struct snd_soc_tplg_stream));
2036
2037 for (i = 0; i < 2; i++)
2038 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
2039
2040 *pcm = dest;
2041 return 0;
2042 }
2043
2044 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
2045 struct snd_soc_tplg_hdr *hdr)
2046 {
2047 struct snd_soc_tplg_pcm *pcm, *_pcm;
2048 int count;
2049 int size;
2050 int i;
2051 bool abi_match;
2052 int ret;
2053
2054 count = le32_to_cpu(hdr->count);
2055
2056 if (tplg->pass != SOC_TPLG_PASS_PCM_DAI)
2057 return 0;
2058
2059 /* check the element size and count */
2060 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2061 size = le32_to_cpu(pcm->size);
2062 if (size > sizeof(struct snd_soc_tplg_pcm)
2063 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
2064 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
2065 size);
2066 return -EINVAL;
2067 }
2068
2069 if (soc_tplg_check_elem_count(tplg,
2070 size, count,
2071 le32_to_cpu(hdr->payload_size),
2072 "PCM DAI")) {
2073 dev_err(tplg->dev, "ASoC: invalid count %d for PCM DAI elems\n",
2074 count);
2075 return -EINVAL;
2076 }
2077
2078 for (i = 0; i < count; i++) {
2079 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
2080 size = le32_to_cpu(pcm->size);
2081
2082 /* check ABI version by size, create a new version of pcm
2083 * if abi not match.
2084 */
2085 if (size == sizeof(*pcm)) {
2086 abi_match = true;
2087 _pcm = pcm;
2088 } else {
2089 abi_match = false;
2090 pcm_new_ver(tplg, pcm, &_pcm);
2091 }
2092
2093 /* create the FE DAIs and DAI links */
2094 ret = soc_tplg_pcm_create(tplg, _pcm);
2095 if (ret < 0) {
2096 if (!abi_match)
2097 kfree(_pcm);
2098 return ret;
2099 }
2100
2101 /* offset by version-specific struct size and
2102 * real priv data size
2103 */
2104 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
2105
2106 if (!abi_match)
2107 kfree(_pcm); /* free the duplicated one */
2108 }
2109
2110 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
2111
2112 return 0;
2113 }
2114
2115 /**
2116 * set_link_hw_format - Set the HW audio format of the physical DAI link.
2117 * @link: &snd_soc_dai_link which should be updated
2118 * @cfg: physical link configs.
2119 *
2120 * Topology context contains a list of supported HW formats (configs) and
2121 * a default format ID for the physical link. This function will use this
2122 * default ID to choose the HW format to set the link's DAI format for init.
2123 */
2124 static void set_link_hw_format(struct snd_soc_dai_link *link,
2125 struct snd_soc_tplg_link_config *cfg)
2126 {
2127 struct snd_soc_tplg_hw_config *hw_config;
2128 unsigned char bclk_master, fsync_master;
2129 unsigned char invert_bclk, invert_fsync;
2130 int i;
2131
2132 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
2133 hw_config = &cfg->hw_config[i];
2134 if (hw_config->id != cfg->default_hw_config_id)
2135 continue;
2136
2137 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
2138 SND_SOC_DAIFMT_FORMAT_MASK;
2139
2140 /* clock gating */
2141 switch (hw_config->clock_gated) {
2142 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
2143 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
2144 break;
2145
2146 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
2147 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
2148 break;
2149
2150 default:
2151 /* ignore the value */
2152 break;
2153 }
2154
2155 /* clock signal polarity */
2156 invert_bclk = hw_config->invert_bclk;
2157 invert_fsync = hw_config->invert_fsync;
2158 if (!invert_bclk && !invert_fsync)
2159 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
2160 else if (!invert_bclk && invert_fsync)
2161 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
2162 else if (invert_bclk && !invert_fsync)
2163 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
2164 else
2165 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
2166
2167 /* clock masters */
2168 bclk_master = (hw_config->bclk_master ==
2169 SND_SOC_TPLG_BCLK_CM);
2170 fsync_master = (hw_config->fsync_master ==
2171 SND_SOC_TPLG_FSYNC_CM);
2172 if (bclk_master && fsync_master)
2173 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
2174 else if (!bclk_master && fsync_master)
2175 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
2176 else if (bclk_master && !fsync_master)
2177 link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
2178 else
2179 link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
2180 }
2181 }
2182
2183 /**
2184 * link_new_ver - Create a new physical link config from the old
2185 * version of source.
2186 * @tplg: topology context
2187 * @src: old version of phyical link config as a source
2188 * @link: latest version of physical link config created from the source
2189 *
2190 * Support from vesion 4. User need free the returned link config manually.
2191 */
2192 static int link_new_ver(struct soc_tplg *tplg,
2193 struct snd_soc_tplg_link_config *src,
2194 struct snd_soc_tplg_link_config **link)
2195 {
2196 struct snd_soc_tplg_link_config *dest;
2197 struct snd_soc_tplg_link_config_v4 *src_v4;
2198 int i;
2199
2200 *link = NULL;
2201
2202 if (le32_to_cpu(src->size) !=
2203 sizeof(struct snd_soc_tplg_link_config_v4)) {
2204 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
2205 return -EINVAL;
2206 }
2207
2208 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
2209
2210 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
2211 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
2212 if (!dest)
2213 return -ENOMEM;
2214
2215 dest->size = cpu_to_le32(sizeof(*dest));
2216 dest->id = src_v4->id;
2217 dest->num_streams = src_v4->num_streams;
2218 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2219 memcpy(&dest->stream[i], &src_v4->stream[i],
2220 sizeof(struct snd_soc_tplg_stream));
2221
2222 *link = dest;
2223 return 0;
2224 }
2225
2226 /* Find and configure an existing physical DAI link */
2227 static int soc_tplg_link_config(struct soc_tplg *tplg,
2228 struct snd_soc_tplg_link_config *cfg)
2229 {
2230 struct snd_soc_dai_link *link;
2231 const char *name, *stream_name;
2232 size_t len;
2233 int ret;
2234
2235 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2236 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2237 return -EINVAL;
2238 else if (len)
2239 name = cfg->name;
2240 else
2241 name = NULL;
2242
2243 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2244 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2245 return -EINVAL;
2246 else if (len)
2247 stream_name = cfg->stream_name;
2248 else
2249 stream_name = NULL;
2250
2251 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2252 name, stream_name);
2253 if (!link) {
2254 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2255 name, cfg->id);
2256 return -EINVAL;
2257 }
2258
2259 /* hw format */
2260 if (cfg->num_hw_configs)
2261 set_link_hw_format(link, cfg);
2262
2263 /* flags */
2264 if (cfg->flag_mask)
2265 set_link_flags(link,
2266 le32_to_cpu(cfg->flag_mask),
2267 le32_to_cpu(cfg->flags));
2268
2269 /* pass control to component driver for optional further init */
2270 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2271 if (ret < 0) {
2272 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2273 return ret;
2274 }
2275
2276 /* for unloading it in snd_soc_tplg_component_remove */
2277 link->dobj.index = tplg->index;
2278 link->dobj.ops = tplg->ops;
2279 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2280 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2281
2282 return 0;
2283 }
2284
2285
2286 /* Load physical link config elements from the topology context */
2287 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2288 struct snd_soc_tplg_hdr *hdr)
2289 {
2290 struct snd_soc_tplg_link_config *link, *_link;
2291 int count;
2292 int size;
2293 int i, ret;
2294 bool abi_match;
2295
2296 count = le32_to_cpu(hdr->count);
2297
2298 if (tplg->pass != SOC_TPLG_PASS_LINK) {
2299 tplg->pos += le32_to_cpu(hdr->size) +
2300 le32_to_cpu(hdr->payload_size);
2301 return 0;
2302 };
2303
2304 /* check the element size and count */
2305 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2306 size = le32_to_cpu(link->size);
2307 if (size > sizeof(struct snd_soc_tplg_link_config)
2308 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2309 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2310 size);
2311 return -EINVAL;
2312 }
2313
2314 if (soc_tplg_check_elem_count(tplg,
2315 size, count,
2316 le32_to_cpu(hdr->payload_size),
2317 "physical link config")) {
2318 dev_err(tplg->dev, "ASoC: invalid count %d for physical link elems\n",
2319 count);
2320 return -EINVAL;
2321 }
2322
2323 /* config physical DAI links */
2324 for (i = 0; i < count; i++) {
2325 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2326 size = le32_to_cpu(link->size);
2327 if (size == sizeof(*link)) {
2328 abi_match = true;
2329 _link = link;
2330 } else {
2331 abi_match = false;
2332 ret = link_new_ver(tplg, link, &_link);
2333 if (ret < 0)
2334 return ret;
2335 }
2336
2337 ret = soc_tplg_link_config(tplg, _link);
2338 if (ret < 0) {
2339 if (!abi_match)
2340 kfree(_link);
2341 return ret;
2342 }
2343
2344 /* offset by version-specific struct size and
2345 * real priv data size
2346 */
2347 tplg->pos += size + le32_to_cpu(_link->priv.size);
2348
2349 if (!abi_match)
2350 kfree(_link); /* free the duplicated one */
2351 }
2352
2353 return 0;
2354 }
2355
2356 /**
2357 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2358 * @tplg: topology context
2359 * @d: physical DAI configs.
2360 *
2361 * The physical dai should already be registered by the platform driver.
2362 * The platform driver should specify the DAI name and ID for matching.
2363 */
2364 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2365 struct snd_soc_tplg_dai *d)
2366 {
2367 struct snd_soc_dai_link_component dai_component;
2368 struct snd_soc_dai *dai;
2369 struct snd_soc_dai_driver *dai_drv;
2370 struct snd_soc_pcm_stream *stream;
2371 struct snd_soc_tplg_stream_caps *caps;
2372 int ret;
2373
2374 memset(&dai_component, 0, sizeof(dai_component));
2375
2376 dai_component.dai_name = d->dai_name;
2377 dai = snd_soc_find_dai(&dai_component);
2378 if (!dai) {
2379 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2380 d->dai_name);
2381 return -EINVAL;
2382 }
2383
2384 if (le32_to_cpu(d->dai_id) != dai->id) {
2385 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2386 d->dai_name);
2387 return -EINVAL;
2388 }
2389
2390 dai_drv = dai->driver;
2391 if (!dai_drv)
2392 return -EINVAL;
2393
2394 if (d->playback) {
2395 stream = &dai_drv->playback;
2396 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2397 set_stream_info(stream, caps);
2398 }
2399
2400 if (d->capture) {
2401 stream = &dai_drv->capture;
2402 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2403 set_stream_info(stream, caps);
2404 }
2405
2406 if (d->flag_mask)
2407 set_dai_flags(dai_drv,
2408 le32_to_cpu(d->flag_mask),
2409 le32_to_cpu(d->flags));
2410
2411 /* pass control to component driver for optional further init */
2412 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2413 if (ret < 0) {
2414 dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
2415 return ret;
2416 }
2417
2418 return 0;
2419 }
2420
2421 /* load physical DAI elements */
2422 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2423 struct snd_soc_tplg_hdr *hdr)
2424 {
2425 struct snd_soc_tplg_dai *dai;
2426 int count;
2427 int i;
2428
2429 count = le32_to_cpu(hdr->count);
2430
2431 if (tplg->pass != SOC_TPLG_PASS_BE_DAI)
2432 return 0;
2433
2434 /* config the existing BE DAIs */
2435 for (i = 0; i < count; i++) {
2436 dai = (struct snd_soc_tplg_dai *)tplg->pos;
2437 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2438 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2439 return -EINVAL;
2440 }
2441
2442 soc_tplg_dai_config(tplg, dai);
2443 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2444 }
2445
2446 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2447 return 0;
2448 }
2449
2450 /**
2451 * manifest_new_ver - Create a new version of manifest from the old version
2452 * of source.
2453 * @tplg: topology context
2454 * @src: old version of manifest as a source
2455 * @manifest: latest version of manifest created from the source
2456 *
2457 * Support from vesion 4. Users need free the returned manifest manually.
2458 */
2459 static int manifest_new_ver(struct soc_tplg *tplg,
2460 struct snd_soc_tplg_manifest *src,
2461 struct snd_soc_tplg_manifest **manifest)
2462 {
2463 struct snd_soc_tplg_manifest *dest;
2464 struct snd_soc_tplg_manifest_v4 *src_v4;
2465 int size;
2466
2467 *manifest = NULL;
2468
2469 size = le32_to_cpu(src->size);
2470 if (size != sizeof(*src_v4)) {
2471 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2472 size);
2473 if (size)
2474 return -EINVAL;
2475 src->size = cpu_to_le32(sizeof(*src_v4));
2476 }
2477
2478 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2479
2480 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2481 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2482 GFP_KERNEL);
2483 if (!dest)
2484 return -ENOMEM;
2485
2486 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2487 dest->control_elems = src_v4->control_elems;
2488 dest->widget_elems = src_v4->widget_elems;
2489 dest->graph_elems = src_v4->graph_elems;
2490 dest->pcm_elems = src_v4->pcm_elems;
2491 dest->dai_link_elems = src_v4->dai_link_elems;
2492 dest->priv.size = src_v4->priv.size;
2493 if (dest->priv.size)
2494 memcpy(dest->priv.data, src_v4->priv.data,
2495 le32_to_cpu(src_v4->priv.size));
2496
2497 *manifest = dest;
2498 return 0;
2499 }
2500
2501 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2502 struct snd_soc_tplg_hdr *hdr)
2503 {
2504 struct snd_soc_tplg_manifest *manifest, *_manifest;
2505 bool abi_match;
2506 int ret = 0;
2507
2508 if (tplg->pass != SOC_TPLG_PASS_MANIFEST)
2509 return 0;
2510
2511 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2512
2513 /* check ABI version by size, create a new manifest if abi not match */
2514 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2515 abi_match = true;
2516 _manifest = manifest;
2517 } else {
2518 abi_match = false;
2519 ret = manifest_new_ver(tplg, manifest, &_manifest);
2520 if (ret < 0)
2521 return ret;
2522 }
2523
2524 /* pass control to component driver for optional further init */
2525 if (tplg->comp && tplg->ops && tplg->ops->manifest)
2526 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2527
2528 if (!abi_match) /* free the duplicated one */
2529 kfree(_manifest);
2530
2531 return ret;
2532 }
2533
2534 /* validate header magic, size and type */
2535 static int soc_valid_header(struct soc_tplg *tplg,
2536 struct snd_soc_tplg_hdr *hdr)
2537 {
2538 if (soc_tplg_get_hdr_offset(tplg) >= tplg->fw->size)
2539 return 0;
2540
2541 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2542 dev_err(tplg->dev,
2543 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2544 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2545 tplg->fw->size);
2546 return -EINVAL;
2547 }
2548
2549 /* big endian firmware objects not supported atm */
2550 if (hdr->magic == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2551 dev_err(tplg->dev,
2552 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2553 tplg->pass, hdr->magic,
2554 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2555 return -EINVAL;
2556 }
2557
2558 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2559 dev_err(tplg->dev,
2560 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2561 tplg->pass, hdr->magic,
2562 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2563 return -EINVAL;
2564 }
2565
2566 /* Support ABI from version 4 */
2567 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2568 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2569 dev_err(tplg->dev,
2570 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2571 tplg->pass, hdr->abi,
2572 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2573 tplg->fw->size);
2574 return -EINVAL;
2575 }
2576
2577 if (hdr->payload_size == 0) {
2578 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2579 soc_tplg_get_hdr_offset(tplg));
2580 return -EINVAL;
2581 }
2582
2583 if (tplg->pass == le32_to_cpu(hdr->type))
2584 dev_dbg(tplg->dev,
2585 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2586 hdr->payload_size, hdr->type, hdr->version,
2587 hdr->vendor_type, tplg->pass);
2588
2589 return 1;
2590 }
2591
2592 /* check header type and call appropriate handler */
2593 static int soc_tplg_load_header(struct soc_tplg *tplg,
2594 struct snd_soc_tplg_hdr *hdr)
2595 {
2596 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2597
2598 /* check for matching ID */
2599 if (le32_to_cpu(hdr->index) != tplg->req_index &&
2600 tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
2601 return 0;
2602
2603 tplg->index = le32_to_cpu(hdr->index);
2604
2605 switch (le32_to_cpu(hdr->type)) {
2606 case SND_SOC_TPLG_TYPE_MIXER:
2607 case SND_SOC_TPLG_TYPE_ENUM:
2608 case SND_SOC_TPLG_TYPE_BYTES:
2609 return soc_tplg_kcontrol_elems_load(tplg, hdr);
2610 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2611 return soc_tplg_dapm_graph_elems_load(tplg, hdr);
2612 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2613 return soc_tplg_dapm_widget_elems_load(tplg, hdr);
2614 case SND_SOC_TPLG_TYPE_PCM:
2615 return soc_tplg_pcm_elems_load(tplg, hdr);
2616 case SND_SOC_TPLG_TYPE_DAI:
2617 return soc_tplg_dai_elems_load(tplg, hdr);
2618 case SND_SOC_TPLG_TYPE_DAI_LINK:
2619 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2620 /* physical link configurations */
2621 return soc_tplg_link_elems_load(tplg, hdr);
2622 case SND_SOC_TPLG_TYPE_MANIFEST:
2623 return soc_tplg_manifest_load(tplg, hdr);
2624 default:
2625 /* bespoke vendor data object */
2626 return soc_tplg_vendor_load(tplg, hdr);
2627 }
2628
2629 return 0;
2630 }
2631
2632 /* process the topology file headers */
2633 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2634 {
2635 struct snd_soc_tplg_hdr *hdr;
2636 int ret;
2637
2638 tplg->pass = SOC_TPLG_PASS_START;
2639
2640 /* process the header types from start to end */
2641 while (tplg->pass <= SOC_TPLG_PASS_END) {
2642
2643 tplg->hdr_pos = tplg->fw->data;
2644 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2645
2646 while (!soc_tplg_is_eof(tplg)) {
2647
2648 /* make sure header is valid before loading */
2649 ret = soc_valid_header(tplg, hdr);
2650 if (ret < 0)
2651 return ret;
2652 else if (ret == 0)
2653 break;
2654
2655 /* load the header object */
2656 ret = soc_tplg_load_header(tplg, hdr);
2657 if (ret < 0)
2658 return ret;
2659
2660 /* goto next header */
2661 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2662 sizeof(struct snd_soc_tplg_hdr);
2663 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2664 }
2665
2666 /* next data type pass */
2667 tplg->pass++;
2668 }
2669
2670 /* signal DAPM we are complete */
2671 ret = soc_tplg_dapm_complete(tplg);
2672 if (ret < 0)
2673 dev_err(tplg->dev,
2674 "ASoC: failed to initialise DAPM from Firmware\n");
2675
2676 return ret;
2677 }
2678
2679 static int soc_tplg_load(struct soc_tplg *tplg)
2680 {
2681 int ret;
2682
2683 ret = soc_tplg_process_headers(tplg);
2684 if (ret == 0)
2685 soc_tplg_complete(tplg);
2686
2687 return ret;
2688 }
2689
2690 /* load audio component topology from "firmware" file */
2691 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2692 struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
2693 {
2694 struct soc_tplg tplg;
2695 int ret;
2696
2697 /* setup parsing context */
2698 memset(&tplg, 0, sizeof(tplg));
2699 tplg.fw = fw;
2700 tplg.dev = comp->dev;
2701 tplg.comp = comp;
2702 tplg.ops = ops;
2703 tplg.req_index = id;
2704 tplg.io_ops = ops->io_ops;
2705 tplg.io_ops_count = ops->io_ops_count;
2706 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2707 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2708
2709 ret = soc_tplg_load(&tplg);
2710 /* free the created components if fail to load topology */
2711 if (ret)
2712 snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
2713
2714 return ret;
2715 }
2716 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2717
2718 /* remove this dynamic widget */
2719 void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
2720 {
2721 /* make sure we are a widget */
2722 if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
2723 return;
2724
2725 remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
2726 }
2727 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
2728
2729 /* remove all dynamic widgets from this DAPM context */
2730 void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
2731 u32 index)
2732 {
2733 struct snd_soc_dapm_widget *w, *next_w;
2734
2735 list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) {
2736
2737 /* make sure we are a widget with correct context */
2738 if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
2739 continue;
2740
2741 /* match ID */
2742 if (w->dobj.index != index &&
2743 w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
2744 continue;
2745 /* check and free and dynamic widget kcontrols */
2746 snd_soc_tplg_widget_remove(w);
2747 snd_soc_dapm_free_widget(w);
2748 }
2749 snd_soc_dapm_reset_cache(dapm);
2750 }
2751 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
2752
2753 /* remove dynamic controls from the component driver */
2754 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
2755 {
2756 struct snd_soc_dobj *dobj, *next_dobj;
2757 int pass = SOC_TPLG_PASS_END;
2758
2759 /* process the header types from end to start */
2760 while (pass >= SOC_TPLG_PASS_START) {
2761
2762 /* remove mixer controls */
2763 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2764 list) {
2765
2766 /* match index */
2767 if (dobj->index != index &&
2768 index != SND_SOC_TPLG_INDEX_ALL)
2769 continue;
2770
2771 switch (dobj->type) {
2772 case SND_SOC_DOBJ_MIXER:
2773 remove_mixer(comp, dobj, pass);
2774 break;
2775 case SND_SOC_DOBJ_ENUM:
2776 remove_enum(comp, dobj, pass);
2777 break;
2778 case SND_SOC_DOBJ_BYTES:
2779 remove_bytes(comp, dobj, pass);
2780 break;
2781 case SND_SOC_DOBJ_GRAPH:
2782 remove_route(comp, dobj, pass);
2783 break;
2784 case SND_SOC_DOBJ_WIDGET:
2785 remove_widget(comp, dobj, pass);
2786 break;
2787 case SND_SOC_DOBJ_PCM:
2788 remove_dai(comp, dobj, pass);
2789 break;
2790 case SND_SOC_DOBJ_DAI_LINK:
2791 remove_link(comp, dobj, pass);
2792 break;
2793 case SND_SOC_DOBJ_BACKEND_LINK:
2794 /*
2795 * call link_unload ops if extra
2796 * deinitialization is needed.
2797 */
2798 remove_backend_link(comp, dobj, pass);
2799 break;
2800 default:
2801 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2802 dobj->type);
2803 break;
2804 }
2805 }
2806 pass--;
2807 }
2808
2809 /* let caller know if FW can be freed when no objects are left */
2810 return !list_empty(&comp->dobj_list);
2811 }
2812 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
Linux with added FPC-III support