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_CONTROL 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_BE_DAI 6
48 #define SOC_TPLG_PASS_LINK 7
49
50 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST
51 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK
52
53 /* topology context */
54 struct soc_tplg {
55 const struct firmware *fw;
56
57 /* runtime FW parsing */
58 const u8 *pos; /* read position */
59 const u8 *hdr_pos; /* header position */
60 unsigned int pass; /* pass number */
61
62 /* component caller */
63 struct device *dev;
64 struct snd_soc_component *comp;
65 u32 index; /* current block index */
66
67 /* vendor specific kcontrol operations */
68 const struct snd_soc_tplg_kcontrol_ops *io_ops;
69 int io_ops_count;
70
71 /* vendor specific bytes ext handlers, for TLV bytes controls */
72 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
73 int bytes_ext_ops_count;
74
75 /* optional fw loading callbacks to component drivers */
76 struct snd_soc_tplg_ops *ops;
77 };
78
79 /* check we dont overflow the data for this control chunk */
soc_tplg_check_elem_count(struct soc_tplg * tplg,size_t elem_size,unsigned int count,size_t bytes,const char * elem_type)80 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
81 unsigned int count, size_t bytes, const char *elem_type)
82 {
83 const u8 *end = tplg->pos + elem_size * count;
84
85 if (end > tplg->fw->data + tplg->fw->size) {
86 dev_err(tplg->dev, "ASoC: %s overflow end of data\n",
87 elem_type);
88 return -EINVAL;
89 }
90
91 /* check there is enough room in chunk for control.
92 extra bytes at the end of control are for vendor data here */
93 if (elem_size * count > bytes) {
94 dev_err(tplg->dev,
95 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n",
96 elem_type, count, elem_size, bytes);
97 return -EINVAL;
98 }
99
100 return 0;
101 }
102
soc_tplg_is_eof(struct soc_tplg * tplg)103 static inline bool soc_tplg_is_eof(struct soc_tplg *tplg)
104 {
105 const u8 *end = tplg->hdr_pos;
106
107 if (end >= tplg->fw->data + tplg->fw->size)
108 return true;
109 return false;
110 }
111
soc_tplg_get_hdr_offset(struct soc_tplg * tplg)112 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg)
113 {
114 return (unsigned long)(tplg->hdr_pos - tplg->fw->data);
115 }
116
soc_tplg_get_offset(struct soc_tplg * tplg)117 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg)
118 {
119 return (unsigned long)(tplg->pos - tplg->fw->data);
120 }
121
122 /* mapping of Kcontrol types and associated operations. */
123 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = {
124 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw,
125 snd_soc_put_volsw, snd_soc_info_volsw},
126 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx,
127 snd_soc_put_volsw_sx, NULL},
128 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double,
129 snd_soc_put_enum_double, snd_soc_info_enum_double},
130 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double,
131 snd_soc_put_enum_double, NULL},
132 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get,
133 snd_soc_bytes_put, snd_soc_bytes_info},
134 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range,
135 snd_soc_put_volsw_range, snd_soc_info_volsw_range},
136 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx,
137 snd_soc_put_xr_sx, snd_soc_info_xr_sx},
138 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe,
139 snd_soc_put_strobe, NULL},
140 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw,
141 snd_soc_dapm_put_volsw, snd_soc_info_volsw},
142 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double,
143 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double},
144 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double,
145 snd_soc_dapm_put_enum_double, NULL},
146 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double,
147 snd_soc_dapm_put_enum_double, NULL},
148 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch,
149 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch},
150 };
151
152 struct soc_tplg_map {
153 int uid;
154 int kid;
155 };
156
157 /* mapping of widget types from UAPI IDs to kernel IDs */
158 static const struct soc_tplg_map dapm_map[] = {
159 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input},
160 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output},
161 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux},
162 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer},
163 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga},
164 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv},
165 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc},
166 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac},
167 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch},
168 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre},
169 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post},
170 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in},
171 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out},
172 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in},
173 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out},
174 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link},
175 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer},
176 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler},
177 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect},
178 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen},
179 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src},
180 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc},
181 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder},
182 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder},
183 };
184
tplg_chan_get_reg(struct soc_tplg * tplg,struct snd_soc_tplg_channel * chan,int map)185 static int tplg_chan_get_reg(struct soc_tplg *tplg,
186 struct snd_soc_tplg_channel *chan, int map)
187 {
188 int i;
189
190 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
191 if (le32_to_cpu(chan[i].id) == map)
192 return le32_to_cpu(chan[i].reg);
193 }
194
195 return -EINVAL;
196 }
197
tplg_chan_get_shift(struct soc_tplg * tplg,struct snd_soc_tplg_channel * chan,int map)198 static int tplg_chan_get_shift(struct soc_tplg *tplg,
199 struct snd_soc_tplg_channel *chan, int map)
200 {
201 int i;
202
203 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) {
204 if (le32_to_cpu(chan[i].id) == map)
205 return le32_to_cpu(chan[i].shift);
206 }
207
208 return -EINVAL;
209 }
210
get_widget_id(int tplg_type)211 static int get_widget_id(int tplg_type)
212 {
213 int i;
214
215 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) {
216 if (tplg_type == dapm_map[i].uid)
217 return dapm_map[i].kid;
218 }
219
220 return -EINVAL;
221 }
222
soc_bind_err(struct soc_tplg * tplg,struct snd_soc_tplg_ctl_hdr * hdr,int index)223 static inline void soc_bind_err(struct soc_tplg *tplg,
224 struct snd_soc_tplg_ctl_hdr *hdr, int index)
225 {
226 dev_err(tplg->dev,
227 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n",
228 hdr->ops.get, hdr->ops.put, hdr->ops.info, index,
229 soc_tplg_get_offset(tplg));
230 }
231
soc_control_err(struct soc_tplg * tplg,struct snd_soc_tplg_ctl_hdr * hdr,const char * name)232 static inline void soc_control_err(struct soc_tplg *tplg,
233 struct snd_soc_tplg_ctl_hdr *hdr, const char *name)
234 {
235 dev_err(tplg->dev,
236 "ASoC: no complete control IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n",
237 name, hdr->ops.get, hdr->ops.put, hdr->ops.info,
238 soc_tplg_get_offset(tplg));
239 }
240
241 /* pass vendor data to component driver for processing */
soc_tplg_vendor_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)242 static int soc_tplg_vendor_load(struct soc_tplg *tplg,
243 struct snd_soc_tplg_hdr *hdr)
244 {
245 int ret = 0;
246
247 if (tplg->ops && tplg->ops->vendor_load)
248 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr);
249 else {
250 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n",
251 hdr->vendor_type);
252 return -EINVAL;
253 }
254
255 if (ret < 0)
256 dev_err(tplg->dev,
257 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n",
258 soc_tplg_get_hdr_offset(tplg),
259 soc_tplg_get_hdr_offset(tplg),
260 hdr->type, hdr->vendor_type);
261 return ret;
262 }
263
264 /* optionally pass new dynamic widget to component driver. This is mainly for
265 * external widgets where we can assign private data/ops */
soc_tplg_widget_load(struct soc_tplg * tplg,struct snd_soc_dapm_widget * w,struct snd_soc_tplg_dapm_widget * tplg_w)266 static int soc_tplg_widget_load(struct soc_tplg *tplg,
267 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
268 {
269 if (tplg->ops && tplg->ops->widget_load)
270 return tplg->ops->widget_load(tplg->comp, tplg->index, w,
271 tplg_w);
272
273 return 0;
274 }
275
276 /* optionally pass new dynamic widget to component driver. This is mainly for
277 * external widgets where we can assign private data/ops */
soc_tplg_widget_ready(struct soc_tplg * tplg,struct snd_soc_dapm_widget * w,struct snd_soc_tplg_dapm_widget * tplg_w)278 static int soc_tplg_widget_ready(struct soc_tplg *tplg,
279 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
280 {
281 if (tplg->ops && tplg->ops->widget_ready)
282 return tplg->ops->widget_ready(tplg->comp, tplg->index, w,
283 tplg_w);
284
285 return 0;
286 }
287
288 /* pass DAI configurations to component driver for extra initialization */
soc_tplg_dai_load(struct soc_tplg * tplg,struct snd_soc_dai_driver * dai_drv,struct snd_soc_tplg_pcm * pcm,struct snd_soc_dai * dai)289 static int soc_tplg_dai_load(struct soc_tplg *tplg,
290 struct snd_soc_dai_driver *dai_drv,
291 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
292 {
293 if (tplg->ops && tplg->ops->dai_load)
294 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv,
295 pcm, dai);
296
297 return 0;
298 }
299
300 /* pass link configurations to component driver for extra initialization */
soc_tplg_dai_link_load(struct soc_tplg * tplg,struct snd_soc_dai_link * link,struct snd_soc_tplg_link_config * cfg)301 static int soc_tplg_dai_link_load(struct soc_tplg *tplg,
302 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg)
303 {
304 if (tplg->ops && tplg->ops->link_load)
305 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg);
306
307 return 0;
308 }
309
310 /* tell the component driver that all firmware has been loaded in this request */
soc_tplg_complete(struct soc_tplg * tplg)311 static int soc_tplg_complete(struct soc_tplg *tplg)
312 {
313 if (tplg->ops && tplg->ops->complete)
314 return tplg->ops->complete(tplg->comp);
315
316 return 0;
317 }
318
319 /* add a dynamic kcontrol */
soc_tplg_add_dcontrol(struct snd_card * card,struct device * dev,const struct snd_kcontrol_new * control_new,const char * prefix,void * data,struct snd_kcontrol ** kcontrol)320 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev,
321 const struct snd_kcontrol_new *control_new, const char *prefix,
322 void *data, struct snd_kcontrol **kcontrol)
323 {
324 int err;
325
326 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix);
327 if (*kcontrol == NULL) {
328 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n",
329 control_new->name);
330 return -ENOMEM;
331 }
332
333 err = snd_ctl_add(card, *kcontrol);
334 if (err < 0) {
335 dev_err(dev, "ASoC: Failed to add %s: %d\n",
336 control_new->name, err);
337 return err;
338 }
339
340 return 0;
341 }
342
343 /* add a dynamic kcontrol for component driver */
soc_tplg_add_kcontrol(struct soc_tplg * tplg,struct snd_kcontrol_new * k,struct snd_kcontrol ** kcontrol)344 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg,
345 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol)
346 {
347 struct snd_soc_component *comp = tplg->comp;
348
349 return soc_tplg_add_dcontrol(comp->card->snd_card,
350 tplg->dev, k, comp->name_prefix, comp, kcontrol);
351 }
352
353 /* remove kcontrol */
soc_tplg_remove_kcontrol(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)354 static void soc_tplg_remove_kcontrol(struct snd_soc_component *comp, struct snd_soc_dobj *dobj,
355 int pass)
356 {
357 struct snd_card *card = comp->card->snd_card;
358
359 if (pass != SOC_TPLG_PASS_CONTROL)
360 return;
361
362 if (dobj->unload)
363 dobj->unload(comp, dobj);
364
365 snd_ctl_remove(card, dobj->control.kcontrol);
366 list_del(&dobj->list);
367 }
368
369 /* remove a route */
soc_tplg_remove_route(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)370 static void soc_tplg_remove_route(struct snd_soc_component *comp,
371 struct snd_soc_dobj *dobj, int pass)
372 {
373 if (pass != SOC_TPLG_PASS_GRAPH)
374 return;
375
376 if (dobj->unload)
377 dobj->unload(comp, dobj);
378
379 list_del(&dobj->list);
380 }
381
382 /* remove a widget and it's kcontrols - routes must be removed first */
soc_tplg_remove_widget(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)383 static void soc_tplg_remove_widget(struct snd_soc_component *comp,
384 struct snd_soc_dobj *dobj, int pass)
385 {
386 struct snd_card *card = comp->card->snd_card;
387 struct snd_soc_dapm_widget *w =
388 container_of(dobj, struct snd_soc_dapm_widget, dobj);
389 int i;
390
391 if (pass != SOC_TPLG_PASS_WIDGET)
392 return;
393
394 if (dobj->unload)
395 dobj->unload(comp, dobj);
396
397 if (!w->kcontrols)
398 goto free_news;
399
400 for (i = 0; w->kcontrols && i < w->num_kcontrols; i++)
401 snd_ctl_remove(card, w->kcontrols[i]);
402
403 free_news:
404
405 list_del(&dobj->list);
406
407 /* widget w is freed by soc-dapm.c */
408 }
409
410 /* remove DAI configurations */
soc_tplg_remove_dai(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)411 static void soc_tplg_remove_dai(struct snd_soc_component *comp,
412 struct snd_soc_dobj *dobj, int pass)
413 {
414 struct snd_soc_dai_driver *dai_drv =
415 container_of(dobj, struct snd_soc_dai_driver, dobj);
416 struct snd_soc_dai *dai, *_dai;
417
418 if (pass != SOC_TPLG_PASS_PCM_DAI)
419 return;
420
421 if (dobj->unload)
422 dobj->unload(comp, dobj);
423
424 for_each_component_dais_safe(comp, dai, _dai)
425 if (dai->driver == dai_drv)
426 snd_soc_unregister_dai(dai);
427
428 list_del(&dobj->list);
429 }
430
431 /* remove link configurations */
soc_tplg_remove_link(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)432 static void soc_tplg_remove_link(struct snd_soc_component *comp,
433 struct snd_soc_dobj *dobj, int pass)
434 {
435 struct snd_soc_dai_link *link =
436 container_of(dobj, struct snd_soc_dai_link, dobj);
437
438 if (pass != SOC_TPLG_PASS_PCM_DAI)
439 return;
440
441 if (dobj->unload)
442 dobj->unload(comp, dobj);
443
444 list_del(&dobj->list);
445 snd_soc_remove_pcm_runtime(comp->card,
446 snd_soc_get_pcm_runtime(comp->card, link));
447 }
448
449 /* unload dai link */
remove_backend_link(struct snd_soc_component * comp,struct snd_soc_dobj * dobj,int pass)450 static void remove_backend_link(struct snd_soc_component *comp,
451 struct snd_soc_dobj *dobj, int pass)
452 {
453 if (pass != SOC_TPLG_PASS_LINK)
454 return;
455
456 if (dobj->unload)
457 dobj->unload(comp, dobj);
458
459 /*
460 * We don't free the link here as what soc_tplg_remove_link() do since BE
461 * links are not allocated by topology.
462 * We however need to reset the dobj type to its initial values
463 */
464 dobj->type = SND_SOC_DOBJ_NONE;
465 list_del(&dobj->list);
466 }
467
468 /* bind a kcontrol to it's IO handlers */
soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr * hdr,struct snd_kcontrol_new * k,const struct soc_tplg * tplg)469 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
470 struct snd_kcontrol_new *k,
471 const struct soc_tplg *tplg)
472 {
473 const struct snd_soc_tplg_kcontrol_ops *ops;
474 const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
475 int num_ops, i;
476
477 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
478 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
479 && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ
480 || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
481 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
482 struct soc_bytes_ext *sbe;
483 struct snd_soc_tplg_bytes_control *be;
484
485 sbe = (struct soc_bytes_ext *)k->private_value;
486 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
487
488 /* TLV bytes controls need standard kcontrol info handler,
489 * TLV callback and extended put/get handlers.
490 */
491 k->info = snd_soc_bytes_info_ext;
492 k->tlv.c = snd_soc_bytes_tlv_callback;
493
494 /*
495 * When a topology-based implementation abuses the
496 * control interface and uses bytes_ext controls of
497 * more than 512 bytes, we need to disable the size
498 * checks, otherwise accesses to such controls will
499 * return an -EINVAL error and prevent the card from
500 * being configured.
501 */
502 if (sbe->max > 512)
503 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK;
504
505 ext_ops = tplg->bytes_ext_ops;
506 num_ops = tplg->bytes_ext_ops_count;
507 for (i = 0; i < num_ops; i++) {
508 if (!sbe->put &&
509 ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
510 sbe->put = ext_ops[i].put;
511 if (!sbe->get &&
512 ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
513 sbe->get = ext_ops[i].get;
514 }
515
516 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get)
517 return -EINVAL;
518 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put)
519 return -EINVAL;
520 return 0;
521 }
522
523 /* try and map vendor specific kcontrol handlers first */
524 ops = tplg->io_ops;
525 num_ops = tplg->io_ops_count;
526 for (i = 0; i < num_ops; i++) {
527
528 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
529 k->put = ops[i].put;
530 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
531 k->get = ops[i].get;
532 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
533 k->info = ops[i].info;
534 }
535
536 /* vendor specific handlers found ? */
537 if (k->put && k->get && k->info)
538 return 0;
539
540 /* none found so try standard kcontrol handlers */
541 ops = io_ops;
542 num_ops = ARRAY_SIZE(io_ops);
543 for (i = 0; i < num_ops; i++) {
544
545 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
546 k->put = ops[i].put;
547 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
548 k->get = ops[i].get;
549 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
550 k->info = ops[i].info;
551 }
552
553 /* standard handlers found ? */
554 if (k->put && k->get && k->info)
555 return 0;
556
557 /* nothing to bind */
558 return -EINVAL;
559 }
560
561 /* bind a widgets to it's evnt handlers */
snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget * w,const struct snd_soc_tplg_widget_events * events,int num_events,u16 event_type)562 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
563 const struct snd_soc_tplg_widget_events *events,
564 int num_events, u16 event_type)
565 {
566 int i;
567
568 w->event = NULL;
569
570 for (i = 0; i < num_events; i++) {
571 if (event_type == events[i].type) {
572
573 /* found - so assign event */
574 w->event = events[i].event_handler;
575 return 0;
576 }
577 }
578
579 /* not found */
580 return -EINVAL;
581 }
582 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
583
584 /* optionally pass new dynamic kcontrol to component driver. */
soc_tplg_control_load(struct soc_tplg * tplg,struct snd_kcontrol_new * k,struct snd_soc_tplg_ctl_hdr * hdr)585 static int soc_tplg_control_load(struct soc_tplg *tplg,
586 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
587 {
588 int ret = 0;
589
590 if (tplg->ops && tplg->ops->control_load)
591 ret = tplg->ops->control_load(tplg->comp, tplg->index, k, hdr);
592
593 if (ret)
594 dev_err(tplg->dev, "ASoC: failed to init %s\n", hdr->name);
595
596 return ret;
597 }
598
599
soc_tplg_create_tlv_db_scale(struct soc_tplg * tplg,struct snd_kcontrol_new * kc,struct snd_soc_tplg_tlv_dbscale * scale)600 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
601 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
602 {
603 unsigned int item_len = 2 * sizeof(unsigned int);
604 unsigned int *p;
605
606 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
607 if (!p)
608 return -ENOMEM;
609
610 p[0] = SNDRV_CTL_TLVT_DB_SCALE;
611 p[1] = item_len;
612 p[2] = le32_to_cpu(scale->min);
613 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
614 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
615
616 kc->tlv.p = (void *)p;
617 return 0;
618 }
619
soc_tplg_create_tlv(struct soc_tplg * tplg,struct snd_kcontrol_new * kc,struct snd_soc_tplg_ctl_hdr * tc)620 static int soc_tplg_create_tlv(struct soc_tplg *tplg,
621 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
622 {
623 struct snd_soc_tplg_ctl_tlv *tplg_tlv;
624 u32 access = le32_to_cpu(tc->access);
625
626 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
627 return 0;
628
629 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
630 tplg_tlv = &tc->tlv;
631 switch (le32_to_cpu(tplg_tlv->type)) {
632 case SNDRV_CTL_TLVT_DB_SCALE:
633 return soc_tplg_create_tlv_db_scale(tplg, kc,
634 &tplg_tlv->scale);
635
636 /* TODO: add support for other TLV types */
637 default:
638 dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
639 tplg_tlv->type);
640 return -EINVAL;
641 }
642 }
643
644 return 0;
645 }
646
soc_tplg_dbytes_create(struct soc_tplg * tplg,size_t size)647 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size)
648 {
649 struct snd_soc_tplg_bytes_control *be;
650 struct soc_bytes_ext *sbe;
651 struct snd_kcontrol_new kc;
652 int ret = 0;
653
654 if (soc_tplg_check_elem_count(tplg,
655 sizeof(struct snd_soc_tplg_bytes_control),
656 1, size, "mixer bytes"))
657 return -EINVAL;
658
659 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
660
661 /* validate kcontrol */
662 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
663 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
664 return -EINVAL;
665
666 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
667 if (sbe == NULL)
668 return -ENOMEM;
669
670 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
671 le32_to_cpu(be->priv.size));
672
673 dev_dbg(tplg->dev,
674 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
675 be->hdr.name, be->hdr.access);
676
677 memset(&kc, 0, sizeof(kc));
678 kc.name = be->hdr.name;
679 kc.private_value = (long)sbe;
680 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
681 kc.access = le32_to_cpu(be->hdr.access);
682
683 sbe->max = le32_to_cpu(be->max);
684 sbe->dobj.type = SND_SOC_DOBJ_BYTES;
685 if (tplg->ops)
686 sbe->dobj.unload = tplg->ops->control_unload;
687 INIT_LIST_HEAD(&sbe->dobj.list);
688
689 /* map io handlers */
690 ret = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
691 if (ret) {
692 soc_control_err(tplg, &be->hdr, be->hdr.name);
693 goto err;
694 }
695
696 /* pass control to driver for optional further init */
697 ret = soc_tplg_control_load(tplg, &kc, &be->hdr);
698 if (ret < 0)
699 goto err;
700
701 /* register control here */
702 ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol);
703 if (ret < 0)
704 goto err;
705
706 list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
707
708 err:
709 return ret;
710 }
711
soc_tplg_dmixer_create(struct soc_tplg * tplg,size_t size)712 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, size_t size)
713 {
714 struct snd_soc_tplg_mixer_control *mc;
715 struct soc_mixer_control *sm;
716 struct snd_kcontrol_new kc;
717 int ret = 0;
718
719 if (soc_tplg_check_elem_count(tplg,
720 sizeof(struct snd_soc_tplg_mixer_control),
721 1, size, "mixers"))
722 return -EINVAL;
723
724 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
725
726 /* validate kcontrol */
727 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
728 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
729 return -EINVAL;
730
731 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
732 if (sm == NULL)
733 return -ENOMEM;
734 tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
735 le32_to_cpu(mc->priv.size));
736
737 dev_dbg(tplg->dev,
738 "ASoC: adding mixer kcontrol %s with access 0x%x\n",
739 mc->hdr.name, mc->hdr.access);
740
741 memset(&kc, 0, sizeof(kc));
742 kc.name = mc->hdr.name;
743 kc.private_value = (long)sm;
744 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
745 kc.access = le32_to_cpu(mc->hdr.access);
746
747 /* we only support FL/FR channel mapping atm */
748 sm->reg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FL);
749 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FR);
750 sm->shift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FL);
751 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FR);
752
753 sm->max = le32_to_cpu(mc->max);
754 sm->min = le32_to_cpu(mc->min);
755 sm->invert = le32_to_cpu(mc->invert);
756 sm->platform_max = le32_to_cpu(mc->platform_max);
757 sm->dobj.index = tplg->index;
758 sm->dobj.type = SND_SOC_DOBJ_MIXER;
759 if (tplg->ops)
760 sm->dobj.unload = tplg->ops->control_unload;
761 INIT_LIST_HEAD(&sm->dobj.list);
762
763 /* map io handlers */
764 ret = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
765 if (ret) {
766 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
767 goto err;
768 }
769
770 /* create any TLV data */
771 ret = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
772 if (ret < 0) {
773 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", mc->hdr.name);
774 goto err;
775 }
776
777 /* pass control to driver for optional further init */
778 ret = soc_tplg_control_load(tplg, &kc, &mc->hdr);
779 if (ret < 0)
780 goto err;
781
782 /* register control here */
783 ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol);
784 if (ret < 0)
785 goto err;
786
787 list_add(&sm->dobj.list, &tplg->comp->dobj_list);
788
789 err:
790 return ret;
791 }
792
soc_tplg_denum_create_texts(struct soc_tplg * tplg,struct soc_enum * se,struct snd_soc_tplg_enum_control * ec)793 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se,
794 struct snd_soc_tplg_enum_control *ec)
795 {
796 int i, ret;
797
798 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts))
799 return -EINVAL;
800
801 se->dobj.control.dtexts =
802 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
803 if (se->dobj.control.dtexts == NULL)
804 return -ENOMEM;
805
806 for (i = 0; i < le32_to_cpu(ec->items); i++) {
807
808 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
809 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
810 ret = -EINVAL;
811 goto err;
812 }
813
814 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL);
815 if (!se->dobj.control.dtexts[i]) {
816 ret = -ENOMEM;
817 goto err;
818 }
819 }
820
821 se->items = le32_to_cpu(ec->items);
822 se->texts = (const char * const *)se->dobj.control.dtexts;
823 return 0;
824
825 err:
826 return ret;
827 }
828
soc_tplg_denum_create_values(struct soc_tplg * tplg,struct soc_enum * se,struct snd_soc_tplg_enum_control * ec)829 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
830 struct snd_soc_tplg_enum_control *ec)
831 {
832 int i;
833
834 /*
835 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS
836 * values instead of using ARRAY_SIZE(ec->values) due to the fact that
837 * it is oversized for its purpose. Additionally it is done so because
838 * it is defined in UAPI header where it can't be easily changed.
839 */
840 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS)
841 return -EINVAL;
842
843 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items),
844 sizeof(*se->dobj.control.dvalues),
845 GFP_KERNEL);
846 if (!se->dobj.control.dvalues)
847 return -ENOMEM;
848
849 /* convert from little-endian */
850 for (i = 0; i < le32_to_cpu(ec->items); i++) {
851 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
852 }
853
854 se->items = le32_to_cpu(ec->items);
855 se->values = (const unsigned int *)se->dobj.control.dvalues;
856 return 0;
857 }
858
soc_tplg_denum_create(struct soc_tplg * tplg,size_t size)859 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size)
860 {
861 struct snd_soc_tplg_enum_control *ec;
862 struct soc_enum *se;
863 struct snd_kcontrol_new kc;
864 int ret = 0;
865
866 if (soc_tplg_check_elem_count(tplg,
867 sizeof(struct snd_soc_tplg_enum_control),
868 1, size, "enums"))
869 return -EINVAL;
870
871 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
872
873 /* validate kcontrol */
874 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
875 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
876 return -EINVAL;
877
878 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL);
879 if (se == NULL)
880 return -ENOMEM;
881
882 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
883 le32_to_cpu(ec->priv.size));
884
885 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
886 ec->hdr.name, ec->items);
887
888 memset(&kc, 0, sizeof(kc));
889 kc.name = ec->hdr.name;
890 kc.private_value = (long)se;
891 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
892 kc.access = le32_to_cpu(ec->hdr.access);
893
894 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
895 se->shift_l = tplg_chan_get_shift(tplg, ec->channel,
896 SNDRV_CHMAP_FL);
897 se->shift_r = tplg_chan_get_shift(tplg, ec->channel,
898 SNDRV_CHMAP_FL);
899
900 se->mask = le32_to_cpu(ec->mask);
901 se->dobj.index = tplg->index;
902 se->dobj.type = SND_SOC_DOBJ_ENUM;
903 if (tplg->ops)
904 se->dobj.unload = tplg->ops->control_unload;
905 INIT_LIST_HEAD(&se->dobj.list);
906
907 switch (le32_to_cpu(ec->hdr.ops.info)) {
908 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
909 case SND_SOC_TPLG_CTL_ENUM_VALUE:
910 ret = soc_tplg_denum_create_values(tplg, se, ec);
911 if (ret < 0) {
912 dev_err(tplg->dev,
913 "ASoC: could not create values for %s\n",
914 ec->hdr.name);
915 goto err;
916 }
917 fallthrough;
918 case SND_SOC_TPLG_CTL_ENUM:
919 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
920 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
921 ret = soc_tplg_denum_create_texts(tplg, se, ec);
922 if (ret < 0) {
923 dev_err(tplg->dev,
924 "ASoC: could not create texts for %s\n",
925 ec->hdr.name);
926 goto err;
927 }
928 break;
929 default:
930 ret = -EINVAL;
931 dev_err(tplg->dev,
932 "ASoC: invalid enum control type %d for %s\n",
933 ec->hdr.ops.info, ec->hdr.name);
934 goto err;
935 }
936
937 /* map io handlers */
938 ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
939 if (ret) {
940 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
941 goto err;
942 }
943
944 /* pass control to driver for optional further init */
945 ret = soc_tplg_control_load(tplg, &kc, &ec->hdr);
946 if (ret < 0)
947 goto err;
948
949 /* register control here */
950 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol);
951 if (ret < 0)
952 goto err;
953
954 list_add(&se->dobj.list, &tplg->comp->dobj_list);
955
956 err:
957 return ret;
958 }
959
soc_tplg_kcontrol_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)960 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
961 struct snd_soc_tplg_hdr *hdr)
962 {
963 int ret;
964 int i;
965
966 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
967 soc_tplg_get_offset(tplg));
968
969 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
970 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
971
972 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
973 dev_err(tplg->dev, "ASoC: invalid control size\n");
974 return -EINVAL;
975 }
976
977 switch (le32_to_cpu(control_hdr->ops.info)) {
978 case SND_SOC_TPLG_CTL_VOLSW:
979 case SND_SOC_TPLG_CTL_STROBE:
980 case SND_SOC_TPLG_CTL_VOLSW_SX:
981 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
982 case SND_SOC_TPLG_CTL_RANGE:
983 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
984 case SND_SOC_TPLG_DAPM_CTL_PIN:
985 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size));
986 break;
987 case SND_SOC_TPLG_CTL_ENUM:
988 case SND_SOC_TPLG_CTL_ENUM_VALUE:
989 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
990 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
991 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
992 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size));
993 break;
994 case SND_SOC_TPLG_CTL_BYTES:
995 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size));
996 break;
997 default:
998 soc_bind_err(tplg, control_hdr, i);
999 return -EINVAL;
1000 }
1001 if (ret < 0) {
1002 dev_err(tplg->dev, "ASoC: invalid control\n");
1003 return ret;
1004 }
1005
1006 }
1007
1008 return 0;
1009 }
1010
1011 /* optionally pass new dynamic kcontrol to component driver. */
soc_tplg_add_route(struct soc_tplg * tplg,struct snd_soc_dapm_route * route)1012 static int soc_tplg_add_route(struct soc_tplg *tplg,
1013 struct snd_soc_dapm_route *route)
1014 {
1015 if (tplg->ops && tplg->ops->dapm_route_load)
1016 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1017 route);
1018
1019 return 0;
1020 }
1021
soc_tplg_dapm_graph_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1022 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1023 struct snd_soc_tplg_hdr *hdr)
1024 {
1025 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1026 const size_t maxlen = SNDRV_CTL_ELEM_ID_NAME_MAXLEN;
1027 struct snd_soc_tplg_dapm_graph_elem *elem;
1028 struct snd_soc_dapm_route *route;
1029 int count, i;
1030 int ret = 0;
1031
1032 count = le32_to_cpu(hdr->count);
1033
1034 if (soc_tplg_check_elem_count(tplg,
1035 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1036 count, le32_to_cpu(hdr->payload_size), "graph"))
1037 return -EINVAL;
1038
1039 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1040 hdr->index);
1041
1042 for (i = 0; i < count; i++) {
1043 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL);
1044 if (!route)
1045 return -ENOMEM;
1046 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1047 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1048
1049 /* validate routes */
1050 if ((strnlen(elem->source, maxlen) == maxlen) ||
1051 (strnlen(elem->sink, maxlen) == maxlen) ||
1052 (strnlen(elem->control, maxlen) == maxlen)) {
1053 ret = -EINVAL;
1054 break;
1055 }
1056
1057 route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL);
1058 route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL);
1059 if (!route->source || !route->sink) {
1060 ret = -ENOMEM;
1061 break;
1062 }
1063
1064 if (strnlen(elem->control, maxlen) != 0) {
1065 route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL);
1066 if (!route->control) {
1067 ret = -ENOMEM;
1068 break;
1069 }
1070 }
1071
1072 /* add route dobj to dobj_list */
1073 route->dobj.type = SND_SOC_DOBJ_GRAPH;
1074 if (tplg->ops)
1075 route->dobj.unload = tplg->ops->dapm_route_unload;
1076 route->dobj.index = tplg->index;
1077 list_add(&route->dobj.list, &tplg->comp->dobj_list);
1078
1079 ret = soc_tplg_add_route(tplg, route);
1080 if (ret < 0) {
1081 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
1082 break;
1083 }
1084
1085 /* add route, but keep going if some fail */
1086 snd_soc_dapm_add_routes(dapm, route, 1);
1087 }
1088
1089 return ret;
1090 }
1091
soc_tplg_dapm_widget_dmixer_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1092 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1093 {
1094 struct soc_mixer_control *sm;
1095 struct snd_soc_tplg_mixer_control *mc;
1096 int err;
1097
1098 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1099
1100 /* validate kcontrol */
1101 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1102 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1103 return -EINVAL;
1104
1105 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
1106 if (!sm)
1107 return -ENOMEM;
1108
1109 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) +
1110 le32_to_cpu(mc->priv.size);
1111
1112 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n",
1113 mc->hdr.name);
1114
1115 kc->private_value = (long)sm;
1116 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
1117 if (!kc->name)
1118 return -ENOMEM;
1119 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1120 kc->access = le32_to_cpu(mc->hdr.access);
1121
1122 /* we only support FL/FR channel mapping atm */
1123 sm->reg = tplg_chan_get_reg(tplg, mc->channel,
1124 SNDRV_CHMAP_FL);
1125 sm->rreg = tplg_chan_get_reg(tplg, mc->channel,
1126 SNDRV_CHMAP_FR);
1127 sm->shift = tplg_chan_get_shift(tplg, mc->channel,
1128 SNDRV_CHMAP_FL);
1129 sm->rshift = tplg_chan_get_shift(tplg, mc->channel,
1130 SNDRV_CHMAP_FR);
1131
1132 sm->max = le32_to_cpu(mc->max);
1133 sm->min = le32_to_cpu(mc->min);
1134 sm->invert = le32_to_cpu(mc->invert);
1135 sm->platform_max = le32_to_cpu(mc->platform_max);
1136 sm->dobj.index = tplg->index;
1137 INIT_LIST_HEAD(&sm->dobj.list);
1138
1139 /* map io handlers */
1140 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg);
1141 if (err) {
1142 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1143 return err;
1144 }
1145
1146 /* create any TLV data */
1147 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr);
1148 if (err < 0) {
1149 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
1150 mc->hdr.name);
1151 return err;
1152 }
1153
1154 /* pass control to driver for optional further init */
1155 err = soc_tplg_control_load(tplg, kc, &mc->hdr);
1156 if (err < 0)
1157 return err;
1158
1159 return 0;
1160 }
1161
soc_tplg_dapm_widget_denum_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1162 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1163 {
1164 struct snd_soc_tplg_enum_control *ec;
1165 struct soc_enum *se;
1166 int err;
1167
1168 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1169 /* validate kcontrol */
1170 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1171 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1172 return -EINVAL;
1173
1174 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
1175 if (!se)
1176 return -ENOMEM;
1177
1178 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1179 le32_to_cpu(ec->priv.size));
1180
1181 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1182 ec->hdr.name);
1183
1184 kc->private_value = (long)se;
1185 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
1186 if (!kc->name)
1187 return -ENOMEM;
1188 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1189 kc->access = le32_to_cpu(ec->hdr.access);
1190
1191 /* we only support FL/FR channel mapping atm */
1192 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1193 se->shift_l = tplg_chan_get_shift(tplg, ec->channel,
1194 SNDRV_CHMAP_FL);
1195 se->shift_r = tplg_chan_get_shift(tplg, ec->channel,
1196 SNDRV_CHMAP_FR);
1197
1198 se->items = le32_to_cpu(ec->items);
1199 se->mask = le32_to_cpu(ec->mask);
1200 se->dobj.index = tplg->index;
1201
1202 switch (le32_to_cpu(ec->hdr.ops.info)) {
1203 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1204 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1205 err = soc_tplg_denum_create_values(tplg, se, ec);
1206 if (err < 0) {
1207 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1208 ec->hdr.name);
1209 return err;
1210 }
1211 fallthrough;
1212 case SND_SOC_TPLG_CTL_ENUM:
1213 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1214 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1215 err = soc_tplg_denum_create_texts(tplg, se, ec);
1216 if (err < 0) {
1217 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1218 ec->hdr.name);
1219 return err;
1220 }
1221 break;
1222 default:
1223 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1224 ec->hdr.ops.info, ec->hdr.name);
1225 return -EINVAL;
1226 }
1227
1228 /* map io handlers */
1229 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
1230 if (err) {
1231 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1232 return err;
1233 }
1234
1235 /* pass control to driver for optional further init */
1236 err = soc_tplg_control_load(tplg, kc, &ec->hdr);
1237 if (err < 0)
1238 return err;
1239
1240 return 0;
1241 }
1242
soc_tplg_dapm_widget_dbytes_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1243 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1244 {
1245 struct snd_soc_tplg_bytes_control *be;
1246 struct soc_bytes_ext *sbe;
1247 int err;
1248
1249 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1250
1251 /* validate kcontrol */
1252 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1253 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1254 return -EINVAL;
1255
1256 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
1257 if (!sbe)
1258 return -ENOMEM;
1259
1260 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1261 le32_to_cpu(be->priv.size));
1262
1263 dev_dbg(tplg->dev,
1264 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1265 be->hdr.name, be->hdr.access);
1266
1267 kc->private_value = (long)sbe;
1268 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
1269 if (!kc->name)
1270 return -ENOMEM;
1271 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1272 kc->access = le32_to_cpu(be->hdr.access);
1273
1274 sbe->max = le32_to_cpu(be->max);
1275 INIT_LIST_HEAD(&sbe->dobj.list);
1276
1277 /* map standard io handlers and check for external handlers */
1278 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg);
1279 if (err) {
1280 soc_control_err(tplg, &be->hdr, be->hdr.name);
1281 return err;
1282 }
1283
1284 /* pass control to driver for optional further init */
1285 err = soc_tplg_control_load(tplg, kc, &be->hdr);
1286 if (err < 0)
1287 return err;
1288
1289 return 0;
1290 }
1291
soc_tplg_dapm_widget_create(struct soc_tplg * tplg,struct snd_soc_tplg_dapm_widget * w)1292 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1293 struct snd_soc_tplg_dapm_widget *w)
1294 {
1295 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1296 struct snd_soc_dapm_widget template, *widget;
1297 struct snd_soc_tplg_ctl_hdr *control_hdr;
1298 struct snd_soc_card *card = tplg->comp->card;
1299 unsigned int *kcontrol_type = NULL;
1300 struct snd_kcontrol_new *kc;
1301 int mixer_count = 0;
1302 int bytes_count = 0;
1303 int enum_count = 0;
1304 int ret = 0;
1305 int i;
1306
1307 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1308 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1309 return -EINVAL;
1310 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1311 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1312 return -EINVAL;
1313
1314 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1315 w->name, w->id);
1316
1317 memset(&template, 0, sizeof(template));
1318
1319 /* map user to kernel widget ID */
1320 template.id = get_widget_id(le32_to_cpu(w->id));
1321 if ((int)template.id < 0)
1322 return template.id;
1323
1324 /* strings are allocated here, but used and freed by the widget */
1325 template.name = kstrdup(w->name, GFP_KERNEL);
1326 if (!template.name)
1327 return -ENOMEM;
1328 template.sname = kstrdup(w->sname, GFP_KERNEL);
1329 if (!template.sname) {
1330 ret = -ENOMEM;
1331 goto err;
1332 }
1333 template.reg = le32_to_cpu(w->reg);
1334 template.shift = le32_to_cpu(w->shift);
1335 template.mask = le32_to_cpu(w->mask);
1336 template.subseq = le32_to_cpu(w->subseq);
1337 template.on_val = w->invert ? 0 : 1;
1338 template.off_val = w->invert ? 1 : 0;
1339 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1340 template.event_flags = le16_to_cpu(w->event_flags);
1341 template.dobj.index = tplg->index;
1342
1343 tplg->pos +=
1344 (sizeof(struct snd_soc_tplg_dapm_widget) +
1345 le32_to_cpu(w->priv.size));
1346
1347 if (w->num_kcontrols == 0) {
1348 template.num_kcontrols = 0;
1349 goto widget;
1350 }
1351
1352 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1353 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL);
1354 if (!kc) {
1355 ret = -ENOMEM;
1356 goto hdr_err;
1357 }
1358
1359 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int),
1360 GFP_KERNEL);
1361 if (!kcontrol_type) {
1362 ret = -ENOMEM;
1363 goto hdr_err;
1364 }
1365
1366 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) {
1367 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1368 switch (le32_to_cpu(control_hdr->ops.info)) {
1369 case SND_SOC_TPLG_CTL_VOLSW:
1370 case SND_SOC_TPLG_CTL_STROBE:
1371 case SND_SOC_TPLG_CTL_VOLSW_SX:
1372 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1373 case SND_SOC_TPLG_CTL_RANGE:
1374 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1375 /* volume mixer */
1376 kc[i].index = mixer_count;
1377 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER;
1378 mixer_count++;
1379 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]);
1380 if (ret < 0)
1381 goto hdr_err;
1382 break;
1383 case SND_SOC_TPLG_CTL_ENUM:
1384 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1385 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1386 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1387 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1388 /* enumerated mixer */
1389 kc[i].index = enum_count;
1390 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM;
1391 enum_count++;
1392 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]);
1393 if (ret < 0)
1394 goto hdr_err;
1395 break;
1396 case SND_SOC_TPLG_CTL_BYTES:
1397 /* bytes control */
1398 kc[i].index = bytes_count;
1399 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES;
1400 bytes_count++;
1401 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]);
1402 if (ret < 0)
1403 goto hdr_err;
1404 break;
1405 default:
1406 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1407 control_hdr->ops.get, control_hdr->ops.put,
1408 le32_to_cpu(control_hdr->ops.info));
1409 ret = -EINVAL;
1410 goto hdr_err;
1411 }
1412 }
1413
1414 template.kcontrol_news = kc;
1415 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n",
1416 w->name, mixer_count, enum_count, bytes_count);
1417
1418 widget:
1419 ret = soc_tplg_widget_load(tplg, &template, w);
1420 if (ret < 0)
1421 goto hdr_err;
1422
1423 /* card dapm mutex is held by the core if we are loading topology
1424 * data during sound card init. */
1425 if (snd_soc_card_is_instantiated(card))
1426 widget = snd_soc_dapm_new_control(dapm, &template);
1427 else
1428 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1429 if (IS_ERR(widget)) {
1430 ret = PTR_ERR(widget);
1431 goto hdr_err;
1432 }
1433
1434 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1435 widget->dobj.widget.kcontrol_type = kcontrol_type;
1436 if (tplg->ops)
1437 widget->dobj.unload = tplg->ops->widget_unload;
1438 widget->dobj.index = tplg->index;
1439 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1440
1441 ret = soc_tplg_widget_ready(tplg, widget, w);
1442 if (ret < 0)
1443 goto ready_err;
1444
1445 kfree(template.sname);
1446 kfree(template.name);
1447
1448 return 0;
1449
1450 ready_err:
1451 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET);
1452 snd_soc_dapm_free_widget(widget);
1453 hdr_err:
1454 kfree(template.sname);
1455 err:
1456 kfree(template.name);
1457 return ret;
1458 }
1459
soc_tplg_dapm_widget_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1460 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1461 struct snd_soc_tplg_hdr *hdr)
1462 {
1463 int count, i;
1464
1465 count = le32_to_cpu(hdr->count);
1466
1467 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1468
1469 for (i = 0; i < count; i++) {
1470 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1471 int ret;
1472
1473 /*
1474 * check if widget itself fits within topology file
1475 * use sizeof instead of widget->size, as we can't be sure
1476 * it is set properly yet (file may end before it is present)
1477 */
1478 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) {
1479 dev_err(tplg->dev, "ASoC: invalid widget data size\n");
1480 return -EINVAL;
1481 }
1482
1483 /* check if widget has proper size */
1484 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1485 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1486 return -EINVAL;
1487 }
1488
1489 /* check if widget private data fits within topology file */
1490 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) {
1491 dev_err(tplg->dev, "ASoC: invalid widget private data size\n");
1492 return -EINVAL;
1493 }
1494
1495 ret = soc_tplg_dapm_widget_create(tplg, widget);
1496 if (ret < 0) {
1497 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1498 widget->name);
1499 return ret;
1500 }
1501 }
1502
1503 return 0;
1504 }
1505
soc_tplg_dapm_complete(struct soc_tplg * tplg)1506 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1507 {
1508 struct snd_soc_card *card = tplg->comp->card;
1509 int ret;
1510
1511 /* Card might not have been registered at this point.
1512 * If so, just return success.
1513 */
1514 if (!snd_soc_card_is_instantiated(card)) {
1515 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n");
1516 return 0;
1517 }
1518
1519 ret = snd_soc_dapm_new_widgets(card);
1520 if (ret < 0)
1521 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret);
1522
1523 return ret;
1524 }
1525
set_stream_info(struct soc_tplg * tplg,struct snd_soc_pcm_stream * stream,struct snd_soc_tplg_stream_caps * caps)1526 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
1527 struct snd_soc_tplg_stream_caps *caps)
1528 {
1529 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
1530 if (!stream->stream_name)
1531 return -ENOMEM;
1532
1533 stream->channels_min = le32_to_cpu(caps->channels_min);
1534 stream->channels_max = le32_to_cpu(caps->channels_max);
1535 stream->rates = le32_to_cpu(caps->rates);
1536 stream->rate_min = le32_to_cpu(caps->rate_min);
1537 stream->rate_max = le32_to_cpu(caps->rate_max);
1538 stream->formats = le64_to_cpu(caps->formats);
1539 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1540
1541 return 0;
1542 }
1543
set_dai_flags(struct snd_soc_dai_driver * dai_drv,unsigned int flag_mask,unsigned int flags)1544 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1545 unsigned int flag_mask, unsigned int flags)
1546 {
1547 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1548 dai_drv->symmetric_rate =
1549 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1550
1551 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1552 dai_drv->symmetric_channels =
1553 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ?
1554 1 : 0;
1555
1556 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1557 dai_drv->symmetric_sample_bits =
1558 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1559 1 : 0;
1560 }
1561
1562 static const struct snd_soc_dai_ops tplg_dai_ops = {
1563 .compress_new = snd_soc_new_compress,
1564 };
1565
soc_tplg_dai_create(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * pcm)1566 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1567 struct snd_soc_tplg_pcm *pcm)
1568 {
1569 struct snd_soc_dai_driver *dai_drv;
1570 struct snd_soc_pcm_stream *stream;
1571 struct snd_soc_tplg_stream_caps *caps;
1572 struct snd_soc_dai *dai;
1573 struct snd_soc_dapm_context *dapm =
1574 snd_soc_component_get_dapm(tplg->comp);
1575 int ret;
1576
1577 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1578 if (dai_drv == NULL)
1579 return -ENOMEM;
1580
1581 if (strlen(pcm->dai_name)) {
1582 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1583 if (!dai_drv->name) {
1584 ret = -ENOMEM;
1585 goto err;
1586 }
1587 }
1588 dai_drv->id = le32_to_cpu(pcm->dai_id);
1589
1590 if (pcm->playback) {
1591 stream = &dai_drv->playback;
1592 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1593 ret = set_stream_info(tplg, stream, caps);
1594 if (ret < 0)
1595 goto err;
1596 }
1597
1598 if (pcm->capture) {
1599 stream = &dai_drv->capture;
1600 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1601 ret = set_stream_info(tplg, stream, caps);
1602 if (ret < 0)
1603 goto err;
1604 }
1605
1606 if (pcm->compress)
1607 dai_drv->ops = &tplg_dai_ops;
1608
1609 /* pass control to component driver for optional further init */
1610 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1611 if (ret < 0) {
1612 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
1613 goto err;
1614 }
1615
1616 dai_drv->dobj.index = tplg->index;
1617 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1618 if (tplg->ops)
1619 dai_drv->dobj.unload = tplg->ops->dai_unload;
1620 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1621
1622 /* register the DAI to the component */
1623 dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1624 if (!dai)
1625 return -ENOMEM;
1626
1627 /* Create the DAI widgets here */
1628 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1629 if (ret != 0) {
1630 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1631 snd_soc_unregister_dai(dai);
1632 return ret;
1633 }
1634
1635 return 0;
1636
1637 err:
1638 return ret;
1639 }
1640
set_link_flags(struct snd_soc_dai_link * link,unsigned int flag_mask,unsigned int flags)1641 static void set_link_flags(struct snd_soc_dai_link *link,
1642 unsigned int flag_mask, unsigned int flags)
1643 {
1644 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1645 link->symmetric_rate =
1646 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1647
1648 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1649 link->symmetric_channels =
1650 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ?
1651 1 : 0;
1652
1653 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1654 link->symmetric_sample_bits =
1655 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1656 1 : 0;
1657
1658 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1659 link->ignore_suspend =
1660 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ?
1661 1 : 0;
1662 }
1663
1664 /* create the FE DAI link */
soc_tplg_fe_link_create(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * pcm)1665 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1666 struct snd_soc_tplg_pcm *pcm)
1667 {
1668 struct snd_soc_dai_link *link;
1669 struct snd_soc_dai_link_component *dlc;
1670 int ret;
1671
1672 /* link + cpu + codec + platform */
1673 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1674 if (link == NULL)
1675 return -ENOMEM;
1676
1677 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1678
1679 link->cpus = &dlc[0];
1680 link->num_cpus = 1;
1681
1682 link->dobj.index = tplg->index;
1683 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1684 if (tplg->ops)
1685 link->dobj.unload = tplg->ops->link_unload;
1686
1687 if (strlen(pcm->pcm_name)) {
1688 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1689 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1690 if (!link->name || !link->stream_name) {
1691 ret = -ENOMEM;
1692 goto err;
1693 }
1694 }
1695 link->id = le32_to_cpu(pcm->pcm_id);
1696
1697 if (strlen(pcm->dai_name)) {
1698 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1699 if (!link->cpus->dai_name) {
1700 ret = -ENOMEM;
1701 goto err;
1702 }
1703 }
1704
1705 /*
1706 * Many topology are assuming link has Codec / Platform, and
1707 * these might be overwritten at soc_tplg_dai_link_load().
1708 * Don't use &asoc_dummy_dlc here.
1709 */
1710 link->codecs = &dlc[1]; /* Don't use &asoc_dummy_dlc here */
1711 link->codecs->name = "snd-soc-dummy";
1712 link->codecs->dai_name = "snd-soc-dummy-dai";
1713 link->num_codecs = 1;
1714
1715 link->platforms = &dlc[2]; /* Don't use &asoc_dummy_dlc here */
1716 link->platforms->name = "snd-soc-dummy";
1717 link->num_platforms = 1;
1718
1719 /* enable DPCM */
1720 link->dynamic = 1;
1721 link->ignore_pmdown_time = 1;
1722 link->dpcm_playback = le32_to_cpu(pcm->playback);
1723 link->dpcm_capture = le32_to_cpu(pcm->capture);
1724 if (pcm->flag_mask)
1725 set_link_flags(link,
1726 le32_to_cpu(pcm->flag_mask),
1727 le32_to_cpu(pcm->flags));
1728
1729 /* pass control to component driver for optional further init */
1730 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1731 if (ret < 0) {
1732 dev_err(tplg->dev, "ASoC: FE link loading failed\n");
1733 goto err;
1734 }
1735
1736 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1);
1737 if (ret < 0) {
1738 if (ret != -EPROBE_DEFER)
1739 dev_err(tplg->dev, "ASoC: adding FE link failed\n");
1740 goto err;
1741 }
1742
1743 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1744
1745 return 0;
1746 err:
1747 return ret;
1748 }
1749
1750 /* create a FE DAI and DAI link from the PCM object */
soc_tplg_pcm_create(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * pcm)1751 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1752 struct snd_soc_tplg_pcm *pcm)
1753 {
1754 int ret;
1755
1756 ret = soc_tplg_dai_create(tplg, pcm);
1757 if (ret < 0)
1758 return ret;
1759
1760 return soc_tplg_fe_link_create(tplg, pcm);
1761 }
1762
1763 /* copy stream caps from the old version 4 of source */
stream_caps_new_ver(struct snd_soc_tplg_stream_caps * dest,struct snd_soc_tplg_stream_caps_v4 * src)1764 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1765 struct snd_soc_tplg_stream_caps_v4 *src)
1766 {
1767 dest->size = cpu_to_le32(sizeof(*dest));
1768 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1769 dest->formats = src->formats;
1770 dest->rates = src->rates;
1771 dest->rate_min = src->rate_min;
1772 dest->rate_max = src->rate_max;
1773 dest->channels_min = src->channels_min;
1774 dest->channels_max = src->channels_max;
1775 dest->periods_min = src->periods_min;
1776 dest->periods_max = src->periods_max;
1777 dest->period_size_min = src->period_size_min;
1778 dest->period_size_max = src->period_size_max;
1779 dest->buffer_size_min = src->buffer_size_min;
1780 dest->buffer_size_max = src->buffer_size_max;
1781 }
1782
1783 /**
1784 * pcm_new_ver - Create the new version of PCM from the old version.
1785 * @tplg: topology context
1786 * @src: older version of pcm as a source
1787 * @pcm: latest version of pcm created from the source
1788 *
1789 * Support from version 4. User should free the returned pcm manually.
1790 */
pcm_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * src,struct snd_soc_tplg_pcm ** pcm)1791 static int pcm_new_ver(struct soc_tplg *tplg,
1792 struct snd_soc_tplg_pcm *src,
1793 struct snd_soc_tplg_pcm **pcm)
1794 {
1795 struct snd_soc_tplg_pcm *dest;
1796 struct snd_soc_tplg_pcm_v4 *src_v4;
1797 int i;
1798
1799 *pcm = NULL;
1800
1801 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
1802 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1803 return -EINVAL;
1804 }
1805
1806 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1807 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1808 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1809 if (!dest)
1810 return -ENOMEM;
1811
1812 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
1813 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1814 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1815 dest->pcm_id = src_v4->pcm_id;
1816 dest->dai_id = src_v4->dai_id;
1817 dest->playback = src_v4->playback;
1818 dest->capture = src_v4->capture;
1819 dest->compress = src_v4->compress;
1820 dest->num_streams = src_v4->num_streams;
1821 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
1822 memcpy(&dest->stream[i], &src_v4->stream[i],
1823 sizeof(struct snd_soc_tplg_stream));
1824
1825 for (i = 0; i < 2; i++)
1826 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
1827
1828 *pcm = dest;
1829 return 0;
1830 }
1831
soc_tplg_pcm_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1832 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1833 struct snd_soc_tplg_hdr *hdr)
1834 {
1835 struct snd_soc_tplg_pcm *pcm, *_pcm;
1836 int count;
1837 int size;
1838 int i;
1839 bool abi_match;
1840 int ret;
1841
1842 count = le32_to_cpu(hdr->count);
1843
1844 /* check the element size and count */
1845 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1846 size = le32_to_cpu(pcm->size);
1847 if (size > sizeof(struct snd_soc_tplg_pcm)
1848 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
1849 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1850 size);
1851 return -EINVAL;
1852 }
1853
1854 if (soc_tplg_check_elem_count(tplg,
1855 size, count,
1856 le32_to_cpu(hdr->payload_size),
1857 "PCM DAI"))
1858 return -EINVAL;
1859
1860 for (i = 0; i < count; i++) {
1861 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1862 size = le32_to_cpu(pcm->size);
1863
1864 /* check ABI version by size, create a new version of pcm
1865 * if abi not match.
1866 */
1867 if (size == sizeof(*pcm)) {
1868 abi_match = true;
1869 _pcm = pcm;
1870 } else {
1871 abi_match = false;
1872 ret = pcm_new_ver(tplg, pcm, &_pcm);
1873 if (ret < 0)
1874 return ret;
1875 }
1876
1877 /* create the FE DAIs and DAI links */
1878 ret = soc_tplg_pcm_create(tplg, _pcm);
1879 if (ret < 0) {
1880 if (!abi_match)
1881 kfree(_pcm);
1882 return ret;
1883 }
1884
1885 /* offset by version-specific struct size and
1886 * real priv data size
1887 */
1888 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
1889
1890 if (!abi_match)
1891 kfree(_pcm); /* free the duplicated one */
1892 }
1893
1894 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1895
1896 return 0;
1897 }
1898
1899 /**
1900 * set_link_hw_format - Set the HW audio format of the physical DAI link.
1901 * @link: &snd_soc_dai_link which should be updated
1902 * @cfg: physical link configs.
1903 *
1904 * Topology context contains a list of supported HW formats (configs) and
1905 * a default format ID for the physical link. This function will use this
1906 * default ID to choose the HW format to set the link's DAI format for init.
1907 */
set_link_hw_format(struct snd_soc_dai_link * link,struct snd_soc_tplg_link_config * cfg)1908 static void set_link_hw_format(struct snd_soc_dai_link *link,
1909 struct snd_soc_tplg_link_config *cfg)
1910 {
1911 struct snd_soc_tplg_hw_config *hw_config;
1912 unsigned char bclk_provider, fsync_provider;
1913 unsigned char invert_bclk, invert_fsync;
1914 int i;
1915
1916 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
1917 hw_config = &cfg->hw_config[i];
1918 if (hw_config->id != cfg->default_hw_config_id)
1919 continue;
1920
1921 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
1922 SND_SOC_DAIFMT_FORMAT_MASK;
1923
1924 /* clock gating */
1925 switch (hw_config->clock_gated) {
1926 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
1927 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
1928 break;
1929
1930 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
1931 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
1932 break;
1933
1934 default:
1935 /* ignore the value */
1936 break;
1937 }
1938
1939 /* clock signal polarity */
1940 invert_bclk = hw_config->invert_bclk;
1941 invert_fsync = hw_config->invert_fsync;
1942 if (!invert_bclk && !invert_fsync)
1943 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
1944 else if (!invert_bclk && invert_fsync)
1945 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
1946 else if (invert_bclk && !invert_fsync)
1947 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
1948 else
1949 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
1950
1951 /* clock masters */
1952 bclk_provider = (hw_config->bclk_provider ==
1953 SND_SOC_TPLG_BCLK_CP);
1954 fsync_provider = (hw_config->fsync_provider ==
1955 SND_SOC_TPLG_FSYNC_CP);
1956 if (bclk_provider && fsync_provider)
1957 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
1958 else if (!bclk_provider && fsync_provider)
1959 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP;
1960 else if (bclk_provider && !fsync_provider)
1961 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC;
1962 else
1963 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
1964 }
1965 }
1966
1967 /**
1968 * link_new_ver - Create a new physical link config from the old
1969 * version of source.
1970 * @tplg: topology context
1971 * @src: old version of phyical link config as a source
1972 * @link: latest version of physical link config created from the source
1973 *
1974 * Support from version 4. User need free the returned link config manually.
1975 */
link_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_link_config * src,struct snd_soc_tplg_link_config ** link)1976 static int link_new_ver(struct soc_tplg *tplg,
1977 struct snd_soc_tplg_link_config *src,
1978 struct snd_soc_tplg_link_config **link)
1979 {
1980 struct snd_soc_tplg_link_config *dest;
1981 struct snd_soc_tplg_link_config_v4 *src_v4;
1982 int i;
1983
1984 *link = NULL;
1985
1986 if (le32_to_cpu(src->size) !=
1987 sizeof(struct snd_soc_tplg_link_config_v4)) {
1988 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
1989 return -EINVAL;
1990 }
1991
1992 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
1993
1994 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
1995 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1996 if (!dest)
1997 return -ENOMEM;
1998
1999 dest->size = cpu_to_le32(sizeof(*dest));
2000 dest->id = src_v4->id;
2001 dest->num_streams = src_v4->num_streams;
2002 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2003 memcpy(&dest->stream[i], &src_v4->stream[i],
2004 sizeof(struct snd_soc_tplg_stream));
2005
2006 *link = dest;
2007 return 0;
2008 }
2009
2010 /**
2011 * snd_soc_find_dai_link - Find a DAI link
2012 *
2013 * @card: soc card
2014 * @id: DAI link ID to match
2015 * @name: DAI link name to match, optional
2016 * @stream_name: DAI link stream name to match, optional
2017 *
2018 * This function will search all existing DAI links of the soc card to
2019 * find the link of the same ID. Since DAI links may not have their
2020 * unique ID, so name and stream name should also match if being
2021 * specified.
2022 *
2023 * Return: pointer of DAI link, or NULL if not found.
2024 */
snd_soc_find_dai_link(struct snd_soc_card * card,int id,const char * name,const char * stream_name)2025 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
2026 int id, const char *name,
2027 const char *stream_name)
2028 {
2029 struct snd_soc_pcm_runtime *rtd;
2030
2031 for_each_card_rtds(card, rtd) {
2032 struct snd_soc_dai_link *link = rtd->dai_link;
2033
2034 if (link->id != id)
2035 continue;
2036
2037 if (name && (!link->name || !strstr(link->name, name)))
2038 continue;
2039
2040 if (stream_name && (!link->stream_name ||
2041 !strstr(link->stream_name, stream_name)))
2042 continue;
2043
2044 return link;
2045 }
2046
2047 return NULL;
2048 }
2049
2050 /* Find and configure an existing physical DAI link */
soc_tplg_link_config(struct soc_tplg * tplg,struct snd_soc_tplg_link_config * cfg)2051 static int soc_tplg_link_config(struct soc_tplg *tplg,
2052 struct snd_soc_tplg_link_config *cfg)
2053 {
2054 struct snd_soc_dai_link *link;
2055 const char *name, *stream_name;
2056 size_t len;
2057 int ret;
2058
2059 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2060 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2061 return -EINVAL;
2062 else if (len)
2063 name = cfg->name;
2064 else
2065 name = NULL;
2066
2067 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2068 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2069 return -EINVAL;
2070 else if (len)
2071 stream_name = cfg->stream_name;
2072 else
2073 stream_name = NULL;
2074
2075 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2076 name, stream_name);
2077 if (!link) {
2078 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2079 name, cfg->id);
2080 return -EINVAL;
2081 }
2082
2083 /* hw format */
2084 if (cfg->num_hw_configs)
2085 set_link_hw_format(link, cfg);
2086
2087 /* flags */
2088 if (cfg->flag_mask)
2089 set_link_flags(link,
2090 le32_to_cpu(cfg->flag_mask),
2091 le32_to_cpu(cfg->flags));
2092
2093 /* pass control to component driver for optional further init */
2094 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2095 if (ret < 0) {
2096 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2097 return ret;
2098 }
2099
2100 /* for unloading it in snd_soc_tplg_component_remove */
2101 link->dobj.index = tplg->index;
2102 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2103 if (tplg->ops)
2104 link->dobj.unload = tplg->ops->link_unload;
2105 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2106
2107 return 0;
2108 }
2109
2110
2111 /* Load physical link config elements from the topology context */
soc_tplg_link_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2112 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2113 struct snd_soc_tplg_hdr *hdr)
2114 {
2115 struct snd_soc_tplg_link_config *link, *_link;
2116 int count;
2117 int size;
2118 int i, ret;
2119 bool abi_match;
2120
2121 count = le32_to_cpu(hdr->count);
2122
2123 /* check the element size and count */
2124 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2125 size = le32_to_cpu(link->size);
2126 if (size > sizeof(struct snd_soc_tplg_link_config)
2127 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2128 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2129 size);
2130 return -EINVAL;
2131 }
2132
2133 if (soc_tplg_check_elem_count(tplg, size, count,
2134 le32_to_cpu(hdr->payload_size),
2135 "physical link config"))
2136 return -EINVAL;
2137
2138 /* config physical DAI links */
2139 for (i = 0; i < count; i++) {
2140 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2141 size = le32_to_cpu(link->size);
2142 if (size == sizeof(*link)) {
2143 abi_match = true;
2144 _link = link;
2145 } else {
2146 abi_match = false;
2147 ret = link_new_ver(tplg, link, &_link);
2148 if (ret < 0)
2149 return ret;
2150 }
2151
2152 ret = soc_tplg_link_config(tplg, _link);
2153 if (ret < 0) {
2154 if (!abi_match)
2155 kfree(_link);
2156 return ret;
2157 }
2158
2159 /* offset by version-specific struct size and
2160 * real priv data size
2161 */
2162 tplg->pos += size + le32_to_cpu(_link->priv.size);
2163
2164 if (!abi_match)
2165 kfree(_link); /* free the duplicated one */
2166 }
2167
2168 return 0;
2169 }
2170
2171 /**
2172 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2173 * @tplg: topology context
2174 * @d: physical DAI configs.
2175 *
2176 * The physical dai should already be registered by the platform driver.
2177 * The platform driver should specify the DAI name and ID for matching.
2178 */
soc_tplg_dai_config(struct soc_tplg * tplg,struct snd_soc_tplg_dai * d)2179 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2180 struct snd_soc_tplg_dai *d)
2181 {
2182 struct snd_soc_dai_link_component dai_component;
2183 struct snd_soc_dai *dai;
2184 struct snd_soc_dai_driver *dai_drv;
2185 struct snd_soc_pcm_stream *stream;
2186 struct snd_soc_tplg_stream_caps *caps;
2187 int ret;
2188
2189 memset(&dai_component, 0, sizeof(dai_component));
2190
2191 dai_component.dai_name = d->dai_name;
2192 dai = snd_soc_find_dai(&dai_component);
2193 if (!dai) {
2194 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2195 d->dai_name);
2196 return -EINVAL;
2197 }
2198
2199 if (le32_to_cpu(d->dai_id) != dai->id) {
2200 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2201 d->dai_name);
2202 return -EINVAL;
2203 }
2204
2205 dai_drv = dai->driver;
2206 if (!dai_drv)
2207 return -EINVAL;
2208
2209 if (d->playback) {
2210 stream = &dai_drv->playback;
2211 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2212 ret = set_stream_info(tplg, stream, caps);
2213 if (ret < 0)
2214 goto err;
2215 }
2216
2217 if (d->capture) {
2218 stream = &dai_drv->capture;
2219 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2220 ret = set_stream_info(tplg, stream, caps);
2221 if (ret < 0)
2222 goto err;
2223 }
2224
2225 if (d->flag_mask)
2226 set_dai_flags(dai_drv,
2227 le32_to_cpu(d->flag_mask),
2228 le32_to_cpu(d->flags));
2229
2230 /* pass control to component driver for optional further init */
2231 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2232 if (ret < 0) {
2233 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
2234 goto err;
2235 }
2236
2237 return 0;
2238
2239 err:
2240 return ret;
2241 }
2242
2243 /* load physical DAI elements */
soc_tplg_dai_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2244 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2245 struct snd_soc_tplg_hdr *hdr)
2246 {
2247 int count;
2248 int i;
2249
2250 count = le32_to_cpu(hdr->count);
2251
2252 /* config the existing BE DAIs */
2253 for (i = 0; i < count; i++) {
2254 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos;
2255 int ret;
2256
2257 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2258 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2259 return -EINVAL;
2260 }
2261
2262 ret = soc_tplg_dai_config(tplg, dai);
2263 if (ret < 0) {
2264 dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
2265 return ret;
2266 }
2267
2268 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2269 }
2270
2271 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2272 return 0;
2273 }
2274
2275 /**
2276 * manifest_new_ver - Create a new version of manifest from the old version
2277 * of source.
2278 * @tplg: topology context
2279 * @src: old version of manifest as a source
2280 * @manifest: latest version of manifest created from the source
2281 *
2282 * Support from version 4. Users need free the returned manifest manually.
2283 */
manifest_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_manifest * src,struct snd_soc_tplg_manifest ** manifest)2284 static int manifest_new_ver(struct soc_tplg *tplg,
2285 struct snd_soc_tplg_manifest *src,
2286 struct snd_soc_tplg_manifest **manifest)
2287 {
2288 struct snd_soc_tplg_manifest *dest;
2289 struct snd_soc_tplg_manifest_v4 *src_v4;
2290 int size;
2291
2292 *manifest = NULL;
2293
2294 size = le32_to_cpu(src->size);
2295 if (size != sizeof(*src_v4)) {
2296 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2297 size);
2298 if (size)
2299 return -EINVAL;
2300 src->size = cpu_to_le32(sizeof(*src_v4));
2301 }
2302
2303 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2304
2305 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2306 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2307 GFP_KERNEL);
2308 if (!dest)
2309 return -ENOMEM;
2310
2311 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2312 dest->control_elems = src_v4->control_elems;
2313 dest->widget_elems = src_v4->widget_elems;
2314 dest->graph_elems = src_v4->graph_elems;
2315 dest->pcm_elems = src_v4->pcm_elems;
2316 dest->dai_link_elems = src_v4->dai_link_elems;
2317 dest->priv.size = src_v4->priv.size;
2318 if (dest->priv.size)
2319 memcpy(dest->priv.data, src_v4->priv.data,
2320 le32_to_cpu(src_v4->priv.size));
2321
2322 *manifest = dest;
2323 return 0;
2324 }
2325
soc_tplg_manifest_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2326 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2327 struct snd_soc_tplg_hdr *hdr)
2328 {
2329 struct snd_soc_tplg_manifest *manifest, *_manifest;
2330 bool abi_match;
2331 int ret = 0;
2332
2333 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2334
2335 /* check ABI version by size, create a new manifest if abi not match */
2336 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2337 abi_match = true;
2338 _manifest = manifest;
2339 } else {
2340 abi_match = false;
2341
2342 ret = manifest_new_ver(tplg, manifest, &_manifest);
2343 if (ret < 0)
2344 return ret;
2345 }
2346
2347 /* pass control to component driver for optional further init */
2348 if (tplg->ops && tplg->ops->manifest)
2349 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2350
2351 if (!abi_match) /* free the duplicated one */
2352 kfree(_manifest);
2353
2354 return ret;
2355 }
2356
2357 /* validate header magic, size and type */
soc_tplg_valid_header(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2358 static int soc_tplg_valid_header(struct soc_tplg *tplg,
2359 struct snd_soc_tplg_hdr *hdr)
2360 {
2361 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2362 dev_err(tplg->dev,
2363 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2364 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2365 tplg->fw->size);
2366 return -EINVAL;
2367 }
2368
2369 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) {
2370 dev_err(tplg->dev,
2371 "ASoC: invalid header of type %d at offset %ld payload_size %d\n",
2372 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2373 hdr->payload_size);
2374 return -EINVAL;
2375 }
2376
2377 /* big endian firmware objects not supported atm */
2378 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2379 dev_err(tplg->dev,
2380 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2381 tplg->pass, hdr->magic,
2382 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2383 return -EINVAL;
2384 }
2385
2386 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2387 dev_err(tplg->dev,
2388 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2389 tplg->pass, hdr->magic,
2390 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2391 return -EINVAL;
2392 }
2393
2394 /* Support ABI from version 4 */
2395 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2396 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2397 dev_err(tplg->dev,
2398 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2399 tplg->pass, hdr->abi,
2400 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2401 tplg->fw->size);
2402 return -EINVAL;
2403 }
2404
2405 if (hdr->payload_size == 0) {
2406 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2407 soc_tplg_get_hdr_offset(tplg));
2408 return -EINVAL;
2409 }
2410
2411 return 0;
2412 }
2413
2414 /* check header type and call appropriate handler */
soc_tplg_load_header(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2415 static int soc_tplg_load_header(struct soc_tplg *tplg,
2416 struct snd_soc_tplg_hdr *hdr)
2417 {
2418 int (*elem_load)(struct soc_tplg *tplg,
2419 struct snd_soc_tplg_hdr *hdr);
2420 unsigned int hdr_pass;
2421
2422 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2423
2424 tplg->index = le32_to_cpu(hdr->index);
2425
2426 switch (le32_to_cpu(hdr->type)) {
2427 case SND_SOC_TPLG_TYPE_MIXER:
2428 case SND_SOC_TPLG_TYPE_ENUM:
2429 case SND_SOC_TPLG_TYPE_BYTES:
2430 hdr_pass = SOC_TPLG_PASS_CONTROL;
2431 elem_load = soc_tplg_kcontrol_elems_load;
2432 break;
2433 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2434 hdr_pass = SOC_TPLG_PASS_GRAPH;
2435 elem_load = soc_tplg_dapm_graph_elems_load;
2436 break;
2437 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2438 hdr_pass = SOC_TPLG_PASS_WIDGET;
2439 elem_load = soc_tplg_dapm_widget_elems_load;
2440 break;
2441 case SND_SOC_TPLG_TYPE_PCM:
2442 hdr_pass = SOC_TPLG_PASS_PCM_DAI;
2443 elem_load = soc_tplg_pcm_elems_load;
2444 break;
2445 case SND_SOC_TPLG_TYPE_DAI:
2446 hdr_pass = SOC_TPLG_PASS_BE_DAI;
2447 elem_load = soc_tplg_dai_elems_load;
2448 break;
2449 case SND_SOC_TPLG_TYPE_DAI_LINK:
2450 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2451 /* physical link configurations */
2452 hdr_pass = SOC_TPLG_PASS_LINK;
2453 elem_load = soc_tplg_link_elems_load;
2454 break;
2455 case SND_SOC_TPLG_TYPE_MANIFEST:
2456 hdr_pass = SOC_TPLG_PASS_MANIFEST;
2457 elem_load = soc_tplg_manifest_load;
2458 break;
2459 default:
2460 /* bespoke vendor data object */
2461 hdr_pass = SOC_TPLG_PASS_VENDOR;
2462 elem_load = soc_tplg_vendor_load;
2463 break;
2464 }
2465
2466 if (tplg->pass == hdr_pass) {
2467 dev_dbg(tplg->dev,
2468 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2469 hdr->payload_size, hdr->type, hdr->version,
2470 hdr->vendor_type, tplg->pass);
2471 return elem_load(tplg, hdr);
2472 }
2473
2474 return 0;
2475 }
2476
2477 /* process the topology file headers */
soc_tplg_process_headers(struct soc_tplg * tplg)2478 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2479 {
2480 int ret;
2481
2482 /* process the header types from start to end */
2483 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) {
2484 struct snd_soc_tplg_hdr *hdr;
2485
2486 tplg->hdr_pos = tplg->fw->data;
2487 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2488
2489 while (!soc_tplg_is_eof(tplg)) {
2490
2491 /* make sure header is valid before loading */
2492 ret = soc_tplg_valid_header(tplg, hdr);
2493 if (ret < 0)
2494 return ret;
2495
2496 /* load the header object */
2497 ret = soc_tplg_load_header(tplg, hdr);
2498 if (ret < 0) {
2499 if (ret != -EPROBE_DEFER) {
2500 dev_err(tplg->dev,
2501 "ASoC: topology: could not load header: %d\n",
2502 ret);
2503 }
2504 return ret;
2505 }
2506
2507 /* goto next header */
2508 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2509 sizeof(struct snd_soc_tplg_hdr);
2510 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2511 }
2512
2513 }
2514
2515 /* signal DAPM we are complete */
2516 ret = soc_tplg_dapm_complete(tplg);
2517
2518 return ret;
2519 }
2520
soc_tplg_load(struct soc_tplg * tplg)2521 static int soc_tplg_load(struct soc_tplg *tplg)
2522 {
2523 int ret;
2524
2525 ret = soc_tplg_process_headers(tplg);
2526 if (ret == 0)
2527 return soc_tplg_complete(tplg);
2528
2529 return ret;
2530 }
2531
2532 /* load audio component topology from "firmware" file */
snd_soc_tplg_component_load(struct snd_soc_component * comp,struct snd_soc_tplg_ops * ops,const struct firmware * fw)2533 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2534 struct snd_soc_tplg_ops *ops, const struct firmware *fw)
2535 {
2536 struct soc_tplg tplg;
2537 int ret;
2538
2539 /*
2540 * check if we have sane parameters:
2541 * comp - needs to exist to keep and reference data while parsing
2542 * comp->card - used for setting card related parameters
2543 * comp->card->dev - used for resource management and prints
2544 * fw - we need it, as it is the very thing we parse
2545 */
2546 if (!comp || !comp->card || !comp->card->dev || !fw)
2547 return -EINVAL;
2548
2549 /* setup parsing context */
2550 memset(&tplg, 0, sizeof(tplg));
2551 tplg.fw = fw;
2552 tplg.dev = comp->card->dev;
2553 tplg.comp = comp;
2554 if (ops) {
2555 tplg.ops = ops;
2556 tplg.io_ops = ops->io_ops;
2557 tplg.io_ops_count = ops->io_ops_count;
2558 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2559 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2560 }
2561
2562 ret = soc_tplg_load(&tplg);
2563 /* free the created components if fail to load topology */
2564 if (ret)
2565 snd_soc_tplg_component_remove(comp);
2566
2567 return ret;
2568 }
2569 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2570
2571 /* remove dynamic controls from the component driver */
snd_soc_tplg_component_remove(struct snd_soc_component * comp)2572 int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
2573 {
2574 struct snd_soc_dobj *dobj, *next_dobj;
2575 int pass;
2576
2577 /* process the header types from end to start */
2578 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) {
2579
2580 /* remove mixer controls */
2581 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2582 list) {
2583
2584 switch (dobj->type) {
2585 case SND_SOC_DOBJ_BYTES:
2586 case SND_SOC_DOBJ_ENUM:
2587 case SND_SOC_DOBJ_MIXER:
2588 soc_tplg_remove_kcontrol(comp, dobj, pass);
2589 break;
2590 case SND_SOC_DOBJ_GRAPH:
2591 soc_tplg_remove_route(comp, dobj, pass);
2592 break;
2593 case SND_SOC_DOBJ_WIDGET:
2594 soc_tplg_remove_widget(comp, dobj, pass);
2595 break;
2596 case SND_SOC_DOBJ_PCM:
2597 soc_tplg_remove_dai(comp, dobj, pass);
2598 break;
2599 case SND_SOC_DOBJ_DAI_LINK:
2600 soc_tplg_remove_link(comp, dobj, pass);
2601 break;
2602 case SND_SOC_DOBJ_BACKEND_LINK:
2603 /*
2604 * call link_unload ops if extra
2605 * deinitialization is needed.
2606 */
2607 remove_backend_link(comp, dobj, pass);
2608 break;
2609 default:
2610 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2611 dobj->type);
2612 break;
2613 }
2614 }
2615 }
2616
2617 /* let caller know if FW can be freed when no objects are left */
2618 return !list_empty(&comp->dobj_list);
2619 }
2620 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
2621