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 return 0;
855 }
856
soc_tplg_denum_create(struct soc_tplg * tplg,size_t size)857 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size)
858 {
859 struct snd_soc_tplg_enum_control *ec;
860 struct soc_enum *se;
861 struct snd_kcontrol_new kc;
862 int ret = 0;
863
864 if (soc_tplg_check_elem_count(tplg,
865 sizeof(struct snd_soc_tplg_enum_control),
866 1, size, "enums"))
867 return -EINVAL;
868
869 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
870
871 /* validate kcontrol */
872 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
873 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
874 return -EINVAL;
875
876 se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL);
877 if (se == NULL)
878 return -ENOMEM;
879
880 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
881 le32_to_cpu(ec->priv.size));
882
883 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n",
884 ec->hdr.name, ec->items);
885
886 memset(&kc, 0, sizeof(kc));
887 kc.name = ec->hdr.name;
888 kc.private_value = (long)se;
889 kc.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
890 kc.access = le32_to_cpu(ec->hdr.access);
891
892 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
893 se->shift_l = tplg_chan_get_shift(tplg, ec->channel,
894 SNDRV_CHMAP_FL);
895 se->shift_r = tplg_chan_get_shift(tplg, ec->channel,
896 SNDRV_CHMAP_FL);
897
898 se->mask = le32_to_cpu(ec->mask);
899 se->dobj.index = tplg->index;
900 se->dobj.type = SND_SOC_DOBJ_ENUM;
901 if (tplg->ops)
902 se->dobj.unload = tplg->ops->control_unload;
903 INIT_LIST_HEAD(&se->dobj.list);
904
905 switch (le32_to_cpu(ec->hdr.ops.info)) {
906 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
907 case SND_SOC_TPLG_CTL_ENUM_VALUE:
908 ret = soc_tplg_denum_create_values(tplg, se, ec);
909 if (ret < 0) {
910 dev_err(tplg->dev,
911 "ASoC: could not create values for %s\n",
912 ec->hdr.name);
913 goto err;
914 }
915 fallthrough;
916 case SND_SOC_TPLG_CTL_ENUM:
917 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
918 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
919 ret = soc_tplg_denum_create_texts(tplg, se, ec);
920 if (ret < 0) {
921 dev_err(tplg->dev,
922 "ASoC: could not create texts for %s\n",
923 ec->hdr.name);
924 goto err;
925 }
926 break;
927 default:
928 ret = -EINVAL;
929 dev_err(tplg->dev,
930 "ASoC: invalid enum control type %d for %s\n",
931 ec->hdr.ops.info, ec->hdr.name);
932 goto err;
933 }
934
935 /* map io handlers */
936 ret = soc_tplg_kcontrol_bind_io(&ec->hdr, &kc, tplg);
937 if (ret) {
938 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
939 goto err;
940 }
941
942 /* pass control to driver for optional further init */
943 ret = soc_tplg_control_load(tplg, &kc, &ec->hdr);
944 if (ret < 0)
945 goto err;
946
947 /* register control here */
948 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol);
949 if (ret < 0)
950 goto err;
951
952 list_add(&se->dobj.list, &tplg->comp->dobj_list);
953
954 err:
955 return ret;
956 }
957
soc_tplg_kcontrol_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)958 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
959 struct snd_soc_tplg_hdr *hdr)
960 {
961 int ret;
962 int i;
963
964 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
965 soc_tplg_get_offset(tplg));
966
967 for (i = 0; i < le32_to_cpu(hdr->count); i++) {
968 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
969
970 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
971 dev_err(tplg->dev, "ASoC: invalid control size\n");
972 return -EINVAL;
973 }
974
975 switch (le32_to_cpu(control_hdr->ops.info)) {
976 case SND_SOC_TPLG_CTL_VOLSW:
977 case SND_SOC_TPLG_CTL_STROBE:
978 case SND_SOC_TPLG_CTL_VOLSW_SX:
979 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
980 case SND_SOC_TPLG_CTL_RANGE:
981 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
982 case SND_SOC_TPLG_DAPM_CTL_PIN:
983 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size));
984 break;
985 case SND_SOC_TPLG_CTL_ENUM:
986 case SND_SOC_TPLG_CTL_ENUM_VALUE:
987 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
988 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
989 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
990 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size));
991 break;
992 case SND_SOC_TPLG_CTL_BYTES:
993 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size));
994 break;
995 default:
996 soc_bind_err(tplg, control_hdr, i);
997 return -EINVAL;
998 }
999 if (ret < 0) {
1000 dev_err(tplg->dev, "ASoC: invalid control\n");
1001 return ret;
1002 }
1003
1004 }
1005
1006 return 0;
1007 }
1008
1009 /* optionally pass new dynamic kcontrol to component driver. */
soc_tplg_add_route(struct soc_tplg * tplg,struct snd_soc_dapm_route * route)1010 static int soc_tplg_add_route(struct soc_tplg *tplg,
1011 struct snd_soc_dapm_route *route)
1012 {
1013 if (tplg->ops && tplg->ops->dapm_route_load)
1014 return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1015 route);
1016
1017 return 0;
1018 }
1019
soc_tplg_dapm_graph_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1020 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1021 struct snd_soc_tplg_hdr *hdr)
1022 {
1023 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1024 struct snd_soc_tplg_dapm_graph_elem *elem;
1025 struct snd_soc_dapm_route *route;
1026 int count, i;
1027 int ret = 0;
1028
1029 count = le32_to_cpu(hdr->count);
1030
1031 if (soc_tplg_check_elem_count(tplg,
1032 sizeof(struct snd_soc_tplg_dapm_graph_elem),
1033 count, le32_to_cpu(hdr->payload_size), "graph"))
1034 return -EINVAL;
1035
1036 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1037 hdr->index);
1038
1039 for (i = 0; i < count; i++) {
1040 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL);
1041 if (!route)
1042 return -ENOMEM;
1043 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1044 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1045
1046 /* validate routes */
1047 if (strnlen(elem->source, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1048 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1049 ret = -EINVAL;
1050 break;
1051 }
1052 if (strnlen(elem->sink, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1053 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1054 ret = -EINVAL;
1055 break;
1056 }
1057 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1058 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
1059 ret = -EINVAL;
1060 break;
1061 }
1062
1063 route->source = elem->source;
1064 route->sink = elem->sink;
1065
1066 /* set to NULL atm for tplg users */
1067 route->connected = NULL;
1068 if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
1069 route->control = NULL;
1070 else
1071 route->control = elem->control;
1072
1073 /* add route dobj to dobj_list */
1074 route->dobj.type = SND_SOC_DOBJ_GRAPH;
1075 if (tplg->ops)
1076 route->dobj.unload = tplg->ops->dapm_route_unload;
1077 route->dobj.index = tplg->index;
1078 list_add(&route->dobj.list, &tplg->comp->dobj_list);
1079
1080 ret = soc_tplg_add_route(tplg, route);
1081 if (ret < 0) {
1082 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
1083 break;
1084 }
1085
1086 /* add route, but keep going if some fail */
1087 snd_soc_dapm_add_routes(dapm, route, 1);
1088 }
1089
1090 return ret;
1091 }
1092
soc_tplg_dapm_widget_dmixer_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1093 static int soc_tplg_dapm_widget_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1094 {
1095 struct soc_mixer_control *sm;
1096 struct snd_soc_tplg_mixer_control *mc;
1097 int err;
1098
1099 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
1100
1101 /* validate kcontrol */
1102 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1103 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1104 return -EINVAL;
1105
1106 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
1107 if (!sm)
1108 return -ENOMEM;
1109
1110 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) +
1111 le32_to_cpu(mc->priv.size);
1112
1113 dev_dbg(tplg->dev, " adding DAPM widget mixer control %s\n",
1114 mc->hdr.name);
1115
1116 kc->private_value = (long)sm;
1117 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
1118 if (!kc->name)
1119 return -ENOMEM;
1120 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1121 kc->access = le32_to_cpu(mc->hdr.access);
1122
1123 /* we only support FL/FR channel mapping atm */
1124 sm->reg = tplg_chan_get_reg(tplg, mc->channel,
1125 SNDRV_CHMAP_FL);
1126 sm->rreg = tplg_chan_get_reg(tplg, mc->channel,
1127 SNDRV_CHMAP_FR);
1128 sm->shift = tplg_chan_get_shift(tplg, mc->channel,
1129 SNDRV_CHMAP_FL);
1130 sm->rshift = tplg_chan_get_shift(tplg, mc->channel,
1131 SNDRV_CHMAP_FR);
1132
1133 sm->max = le32_to_cpu(mc->max);
1134 sm->min = le32_to_cpu(mc->min);
1135 sm->invert = le32_to_cpu(mc->invert);
1136 sm->platform_max = le32_to_cpu(mc->platform_max);
1137 sm->dobj.index = tplg->index;
1138 INIT_LIST_HEAD(&sm->dobj.list);
1139
1140 /* map io handlers */
1141 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg);
1142 if (err) {
1143 soc_control_err(tplg, &mc->hdr, mc->hdr.name);
1144 return err;
1145 }
1146
1147 /* create any TLV data */
1148 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr);
1149 if (err < 0) {
1150 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
1151 mc->hdr.name);
1152 return err;
1153 }
1154
1155 /* pass control to driver for optional further init */
1156 err = soc_tplg_control_load(tplg, kc, &mc->hdr);
1157 if (err < 0)
1158 return err;
1159
1160 return 0;
1161 }
1162
soc_tplg_dapm_widget_denum_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1163 static int soc_tplg_dapm_widget_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1164 {
1165 struct snd_soc_tplg_enum_control *ec;
1166 struct soc_enum *se;
1167 int err;
1168
1169 ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
1170 /* validate kcontrol */
1171 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1172 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1173 return -EINVAL;
1174
1175 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
1176 if (!se)
1177 return -ENOMEM;
1178
1179 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) +
1180 le32_to_cpu(ec->priv.size));
1181
1182 dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
1183 ec->hdr.name);
1184
1185 kc->private_value = (long)se;
1186 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
1187 if (!kc->name)
1188 return -ENOMEM;
1189 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1190 kc->access = le32_to_cpu(ec->hdr.access);
1191
1192 /* we only support FL/FR channel mapping atm */
1193 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
1194 se->shift_l = tplg_chan_get_shift(tplg, ec->channel,
1195 SNDRV_CHMAP_FL);
1196 se->shift_r = tplg_chan_get_shift(tplg, ec->channel,
1197 SNDRV_CHMAP_FR);
1198
1199 se->items = le32_to_cpu(ec->items);
1200 se->mask = le32_to_cpu(ec->mask);
1201 se->dobj.index = tplg->index;
1202
1203 switch (le32_to_cpu(ec->hdr.ops.info)) {
1204 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1205 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1206 err = soc_tplg_denum_create_values(tplg, se, ec);
1207 if (err < 0) {
1208 dev_err(tplg->dev, "ASoC: could not create values for %s\n",
1209 ec->hdr.name);
1210 return err;
1211 }
1212 fallthrough;
1213 case SND_SOC_TPLG_CTL_ENUM:
1214 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1215 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1216 err = soc_tplg_denum_create_texts(tplg, se, ec);
1217 if (err < 0) {
1218 dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
1219 ec->hdr.name);
1220 return err;
1221 }
1222 break;
1223 default:
1224 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
1225 ec->hdr.ops.info, ec->hdr.name);
1226 return -EINVAL;
1227 }
1228
1229 /* map io handlers */
1230 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
1231 if (err) {
1232 soc_control_err(tplg, &ec->hdr, ec->hdr.name);
1233 return err;
1234 }
1235
1236 /* pass control to driver for optional further init */
1237 err = soc_tplg_control_load(tplg, kc, &ec->hdr);
1238 if (err < 0)
1239 return err;
1240
1241 return 0;
1242 }
1243
soc_tplg_dapm_widget_dbytes_create(struct soc_tplg * tplg,struct snd_kcontrol_new * kc)1244 static int soc_tplg_dapm_widget_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
1245 {
1246 struct snd_soc_tplg_bytes_control *be;
1247 struct soc_bytes_ext *sbe;
1248 int err;
1249
1250 be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
1251
1252 /* validate kcontrol */
1253 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1254 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1255 return -EINVAL;
1256
1257 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
1258 if (!sbe)
1259 return -ENOMEM;
1260
1261 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) +
1262 le32_to_cpu(be->priv.size));
1263
1264 dev_dbg(tplg->dev,
1265 "ASoC: adding bytes kcontrol %s with access 0x%x\n",
1266 be->hdr.name, be->hdr.access);
1267
1268 kc->private_value = (long)sbe;
1269 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
1270 if (!kc->name)
1271 return -ENOMEM;
1272 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1273 kc->access = le32_to_cpu(be->hdr.access);
1274
1275 sbe->max = le32_to_cpu(be->max);
1276 INIT_LIST_HEAD(&sbe->dobj.list);
1277
1278 /* map standard io handlers and check for external handlers */
1279 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg);
1280 if (err) {
1281 soc_control_err(tplg, &be->hdr, be->hdr.name);
1282 return err;
1283 }
1284
1285 /* pass control to driver for optional further init */
1286 err = soc_tplg_control_load(tplg, kc, &be->hdr);
1287 if (err < 0)
1288 return err;
1289
1290 return 0;
1291 }
1292
soc_tplg_dapm_widget_create(struct soc_tplg * tplg,struct snd_soc_tplg_dapm_widget * w)1293 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1294 struct snd_soc_tplg_dapm_widget *w)
1295 {
1296 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1297 struct snd_soc_dapm_widget template, *widget;
1298 struct snd_soc_tplg_ctl_hdr *control_hdr;
1299 struct snd_soc_card *card = tplg->comp->card;
1300 unsigned int *kcontrol_type = NULL;
1301 struct snd_kcontrol_new *kc;
1302 int mixer_count = 0;
1303 int bytes_count = 0;
1304 int enum_count = 0;
1305 int ret = 0;
1306 int i;
1307
1308 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1309 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1310 return -EINVAL;
1311 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1312 SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1313 return -EINVAL;
1314
1315 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1316 w->name, w->id);
1317
1318 memset(&template, 0, sizeof(template));
1319
1320 /* map user to kernel widget ID */
1321 template.id = get_widget_id(le32_to_cpu(w->id));
1322 if ((int)template.id < 0)
1323 return template.id;
1324
1325 /* strings are allocated here, but used and freed by the widget */
1326 template.name = kstrdup(w->name, GFP_KERNEL);
1327 if (!template.name)
1328 return -ENOMEM;
1329 template.sname = kstrdup(w->sname, GFP_KERNEL);
1330 if (!template.sname) {
1331 ret = -ENOMEM;
1332 goto err;
1333 }
1334 template.reg = le32_to_cpu(w->reg);
1335 template.shift = le32_to_cpu(w->shift);
1336 template.mask = le32_to_cpu(w->mask);
1337 template.subseq = le32_to_cpu(w->subseq);
1338 template.on_val = w->invert ? 0 : 1;
1339 template.off_val = w->invert ? 1 : 0;
1340 template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1341 template.event_flags = le16_to_cpu(w->event_flags);
1342 template.dobj.index = tplg->index;
1343
1344 tplg->pos +=
1345 (sizeof(struct snd_soc_tplg_dapm_widget) +
1346 le32_to_cpu(w->priv.size));
1347
1348 if (w->num_kcontrols == 0) {
1349 template.num_kcontrols = 0;
1350 goto widget;
1351 }
1352
1353 template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1354 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL);
1355 if (!kc) {
1356 ret = -ENOMEM;
1357 goto hdr_err;
1358 }
1359
1360 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int),
1361 GFP_KERNEL);
1362 if (!kcontrol_type) {
1363 ret = -ENOMEM;
1364 goto hdr_err;
1365 }
1366
1367 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) {
1368 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1369 switch (le32_to_cpu(control_hdr->ops.info)) {
1370 case SND_SOC_TPLG_CTL_VOLSW:
1371 case SND_SOC_TPLG_CTL_STROBE:
1372 case SND_SOC_TPLG_CTL_VOLSW_SX:
1373 case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1374 case SND_SOC_TPLG_CTL_RANGE:
1375 case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1376 /* volume mixer */
1377 kc[i].index = mixer_count;
1378 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER;
1379 mixer_count++;
1380 ret = soc_tplg_dapm_widget_dmixer_create(tplg, &kc[i]);
1381 if (ret < 0)
1382 goto hdr_err;
1383 break;
1384 case SND_SOC_TPLG_CTL_ENUM:
1385 case SND_SOC_TPLG_CTL_ENUM_VALUE:
1386 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1387 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1388 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1389 /* enumerated mixer */
1390 kc[i].index = enum_count;
1391 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM;
1392 enum_count++;
1393 ret = soc_tplg_dapm_widget_denum_create(tplg, &kc[i]);
1394 if (ret < 0)
1395 goto hdr_err;
1396 break;
1397 case SND_SOC_TPLG_CTL_BYTES:
1398 /* bytes control */
1399 kc[i].index = bytes_count;
1400 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES;
1401 bytes_count++;
1402 ret = soc_tplg_dapm_widget_dbytes_create(tplg, &kc[i]);
1403 if (ret < 0)
1404 goto hdr_err;
1405 break;
1406 default:
1407 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1408 control_hdr->ops.get, control_hdr->ops.put,
1409 le32_to_cpu(control_hdr->ops.info));
1410 ret = -EINVAL;
1411 goto hdr_err;
1412 }
1413 }
1414
1415 template.kcontrol_news = kc;
1416 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n",
1417 w->name, mixer_count, enum_count, bytes_count);
1418
1419 widget:
1420 ret = soc_tplg_widget_load(tplg, &template, w);
1421 if (ret < 0)
1422 goto hdr_err;
1423
1424 /* card dapm mutex is held by the core if we are loading topology
1425 * data during sound card init. */
1426 if (snd_soc_card_is_instantiated(card))
1427 widget = snd_soc_dapm_new_control(dapm, &template);
1428 else
1429 widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1430 if (IS_ERR(widget)) {
1431 ret = PTR_ERR(widget);
1432 goto hdr_err;
1433 }
1434
1435 widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1436 widget->dobj.widget.kcontrol_type = kcontrol_type;
1437 if (tplg->ops)
1438 widget->dobj.unload = tplg->ops->widget_unload;
1439 widget->dobj.index = tplg->index;
1440 list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1441
1442 ret = soc_tplg_widget_ready(tplg, widget, w);
1443 if (ret < 0)
1444 goto ready_err;
1445
1446 kfree(template.sname);
1447 kfree(template.name);
1448
1449 return 0;
1450
1451 ready_err:
1452 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET);
1453 snd_soc_dapm_free_widget(widget);
1454 hdr_err:
1455 kfree(template.sname);
1456 err:
1457 kfree(template.name);
1458 return ret;
1459 }
1460
soc_tplg_dapm_widget_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1461 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1462 struct snd_soc_tplg_hdr *hdr)
1463 {
1464 int count, i;
1465
1466 count = le32_to_cpu(hdr->count);
1467
1468 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1469
1470 for (i = 0; i < count; i++) {
1471 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1472 int ret;
1473
1474 /*
1475 * check if widget itself fits within topology file
1476 * use sizeof instead of widget->size, as we can't be sure
1477 * it is set properly yet (file may end before it is present)
1478 */
1479 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) {
1480 dev_err(tplg->dev, "ASoC: invalid widget data size\n");
1481 return -EINVAL;
1482 }
1483
1484 /* check if widget has proper size */
1485 if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1486 dev_err(tplg->dev, "ASoC: invalid widget size\n");
1487 return -EINVAL;
1488 }
1489
1490 /* check if widget private data fits within topology file */
1491 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) {
1492 dev_err(tplg->dev, "ASoC: invalid widget private data size\n");
1493 return -EINVAL;
1494 }
1495
1496 ret = soc_tplg_dapm_widget_create(tplg, widget);
1497 if (ret < 0) {
1498 dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1499 widget->name);
1500 return ret;
1501 }
1502 }
1503
1504 return 0;
1505 }
1506
soc_tplg_dapm_complete(struct soc_tplg * tplg)1507 static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1508 {
1509 struct snd_soc_card *card = tplg->comp->card;
1510 int ret;
1511
1512 /* Card might not have been registered at this point.
1513 * If so, just return success.
1514 */
1515 if (!snd_soc_card_is_instantiated(card)) {
1516 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n");
1517 return 0;
1518 }
1519
1520 ret = snd_soc_dapm_new_widgets(card);
1521 if (ret < 0)
1522 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret);
1523
1524 return ret;
1525 }
1526
set_stream_info(struct soc_tplg * tplg,struct snd_soc_pcm_stream * stream,struct snd_soc_tplg_stream_caps * caps)1527 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
1528 struct snd_soc_tplg_stream_caps *caps)
1529 {
1530 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
1531 if (!stream->stream_name)
1532 return -ENOMEM;
1533
1534 stream->channels_min = le32_to_cpu(caps->channels_min);
1535 stream->channels_max = le32_to_cpu(caps->channels_max);
1536 stream->rates = le32_to_cpu(caps->rates);
1537 stream->rate_min = le32_to_cpu(caps->rate_min);
1538 stream->rate_max = le32_to_cpu(caps->rate_max);
1539 stream->formats = le64_to_cpu(caps->formats);
1540 stream->sig_bits = le32_to_cpu(caps->sig_bits);
1541
1542 return 0;
1543 }
1544
set_dai_flags(struct snd_soc_dai_driver * dai_drv,unsigned int flag_mask,unsigned int flags)1545 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1546 unsigned int flag_mask, unsigned int flags)
1547 {
1548 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1549 dai_drv->symmetric_rate =
1550 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1551
1552 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1553 dai_drv->symmetric_channels =
1554 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ?
1555 1 : 0;
1556
1557 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1558 dai_drv->symmetric_sample_bits =
1559 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1560 1 : 0;
1561 }
1562
1563 static const struct snd_soc_dai_ops tplg_dai_ops = {
1564 .compress_new = snd_soc_new_compress,
1565 };
1566
soc_tplg_dai_create(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * pcm)1567 static int soc_tplg_dai_create(struct soc_tplg *tplg,
1568 struct snd_soc_tplg_pcm *pcm)
1569 {
1570 struct snd_soc_dai_driver *dai_drv;
1571 struct snd_soc_pcm_stream *stream;
1572 struct snd_soc_tplg_stream_caps *caps;
1573 struct snd_soc_dai *dai;
1574 struct snd_soc_dapm_context *dapm =
1575 snd_soc_component_get_dapm(tplg->comp);
1576 int ret;
1577
1578 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1579 if (dai_drv == NULL)
1580 return -ENOMEM;
1581
1582 if (strlen(pcm->dai_name)) {
1583 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1584 if (!dai_drv->name) {
1585 ret = -ENOMEM;
1586 goto err;
1587 }
1588 }
1589 dai_drv->id = le32_to_cpu(pcm->dai_id);
1590
1591 if (pcm->playback) {
1592 stream = &dai_drv->playback;
1593 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1594 ret = set_stream_info(tplg, stream, caps);
1595 if (ret < 0)
1596 goto err;
1597 }
1598
1599 if (pcm->capture) {
1600 stream = &dai_drv->capture;
1601 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1602 ret = set_stream_info(tplg, stream, caps);
1603 if (ret < 0)
1604 goto err;
1605 }
1606
1607 if (pcm->compress)
1608 dai_drv->ops = &tplg_dai_ops;
1609
1610 /* pass control to component driver for optional further init */
1611 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1612 if (ret < 0) {
1613 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
1614 goto err;
1615 }
1616
1617 dai_drv->dobj.index = tplg->index;
1618 dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1619 if (tplg->ops)
1620 dai_drv->dobj.unload = tplg->ops->dai_unload;
1621 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1622
1623 /* register the DAI to the component */
1624 dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1625 if (!dai)
1626 return -ENOMEM;
1627
1628 /* Create the DAI widgets here */
1629 ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1630 if (ret != 0) {
1631 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1632 snd_soc_unregister_dai(dai);
1633 return ret;
1634 }
1635
1636 return 0;
1637
1638 err:
1639 return ret;
1640 }
1641
set_link_flags(struct snd_soc_dai_link * link,unsigned int flag_mask,unsigned int flags)1642 static void set_link_flags(struct snd_soc_dai_link *link,
1643 unsigned int flag_mask, unsigned int flags)
1644 {
1645 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1646 link->symmetric_rate =
1647 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1648
1649 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1650 link->symmetric_channels =
1651 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ?
1652 1 : 0;
1653
1654 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1655 link->symmetric_sample_bits =
1656 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1657 1 : 0;
1658
1659 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1660 link->ignore_suspend =
1661 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ?
1662 1 : 0;
1663 }
1664
1665 /* create the FE DAI link */
soc_tplg_fe_link_create(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * pcm)1666 static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1667 struct snd_soc_tplg_pcm *pcm)
1668 {
1669 struct snd_soc_dai_link *link;
1670 struct snd_soc_dai_link_component *dlc;
1671 int ret;
1672
1673 /* link + cpu + codec + platform */
1674 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1675 if (link == NULL)
1676 return -ENOMEM;
1677
1678 dlc = (struct snd_soc_dai_link_component *)(link + 1);
1679
1680 link->cpus = &dlc[0];
1681 link->num_cpus = 1;
1682
1683 link->dobj.index = tplg->index;
1684 link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1685 if (tplg->ops)
1686 link->dobj.unload = tplg->ops->link_unload;
1687
1688 if (strlen(pcm->pcm_name)) {
1689 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1690 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1691 if (!link->name || !link->stream_name) {
1692 ret = -ENOMEM;
1693 goto err;
1694 }
1695 }
1696 link->id = le32_to_cpu(pcm->pcm_id);
1697
1698 if (strlen(pcm->dai_name)) {
1699 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1700 if (!link->cpus->dai_name) {
1701 ret = -ENOMEM;
1702 goto err;
1703 }
1704 }
1705
1706 /*
1707 * Many topology are assuming link has Codec / Platform, and
1708 * these might be overwritten at soc_tplg_dai_link_load().
1709 * Don't use &asoc_dummy_dlc here.
1710 */
1711 link->codecs = &dlc[1]; /* Don't use &asoc_dummy_dlc here */
1712 link->codecs->name = "snd-soc-dummy";
1713 link->codecs->dai_name = "snd-soc-dummy-dai";
1714 link->num_codecs = 1;
1715
1716 link->platforms = &dlc[2]; /* Don't use &asoc_dummy_dlc here */
1717 link->platforms->name = "snd-soc-dummy";
1718 link->num_platforms = 1;
1719
1720 /* enable DPCM */
1721 link->dynamic = 1;
1722 link->ignore_pmdown_time = 1;
1723 link->dpcm_playback = le32_to_cpu(pcm->playback);
1724 link->dpcm_capture = le32_to_cpu(pcm->capture);
1725 if (pcm->flag_mask)
1726 set_link_flags(link,
1727 le32_to_cpu(pcm->flag_mask),
1728 le32_to_cpu(pcm->flags));
1729
1730 /* pass control to component driver for optional further init */
1731 ret = soc_tplg_dai_link_load(tplg, link, NULL);
1732 if (ret < 0) {
1733 dev_err(tplg->dev, "ASoC: FE link loading failed\n");
1734 goto err;
1735 }
1736
1737 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1);
1738 if (ret < 0) {
1739 if (ret != -EPROBE_DEFER)
1740 dev_err(tplg->dev, "ASoC: adding FE link failed\n");
1741 goto err;
1742 }
1743
1744 list_add(&link->dobj.list, &tplg->comp->dobj_list);
1745
1746 return 0;
1747 err:
1748 return ret;
1749 }
1750
1751 /* 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)1752 static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1753 struct snd_soc_tplg_pcm *pcm)
1754 {
1755 int ret;
1756
1757 ret = soc_tplg_dai_create(tplg, pcm);
1758 if (ret < 0)
1759 return ret;
1760
1761 return soc_tplg_fe_link_create(tplg, pcm);
1762 }
1763
1764 /* 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)1765 static void stream_caps_new_ver(struct snd_soc_tplg_stream_caps *dest,
1766 struct snd_soc_tplg_stream_caps_v4 *src)
1767 {
1768 dest->size = cpu_to_le32(sizeof(*dest));
1769 memcpy(dest->name, src->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1770 dest->formats = src->formats;
1771 dest->rates = src->rates;
1772 dest->rate_min = src->rate_min;
1773 dest->rate_max = src->rate_max;
1774 dest->channels_min = src->channels_min;
1775 dest->channels_max = src->channels_max;
1776 dest->periods_min = src->periods_min;
1777 dest->periods_max = src->periods_max;
1778 dest->period_size_min = src->period_size_min;
1779 dest->period_size_max = src->period_size_max;
1780 dest->buffer_size_min = src->buffer_size_min;
1781 dest->buffer_size_max = src->buffer_size_max;
1782 }
1783
1784 /**
1785 * pcm_new_ver - Create the new version of PCM from the old version.
1786 * @tplg: topology context
1787 * @src: older version of pcm as a source
1788 * @pcm: latest version of pcm created from the source
1789 *
1790 * Support from version 4. User should free the returned pcm manually.
1791 */
pcm_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_pcm * src,struct snd_soc_tplg_pcm ** pcm)1792 static int pcm_new_ver(struct soc_tplg *tplg,
1793 struct snd_soc_tplg_pcm *src,
1794 struct snd_soc_tplg_pcm **pcm)
1795 {
1796 struct snd_soc_tplg_pcm *dest;
1797 struct snd_soc_tplg_pcm_v4 *src_v4;
1798 int i;
1799
1800 *pcm = NULL;
1801
1802 if (le32_to_cpu(src->size) != sizeof(*src_v4)) {
1803 dev_err(tplg->dev, "ASoC: invalid PCM size\n");
1804 return -EINVAL;
1805 }
1806
1807 dev_warn(tplg->dev, "ASoC: old version of PCM\n");
1808 src_v4 = (struct snd_soc_tplg_pcm_v4 *)src;
1809 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1810 if (!dest)
1811 return -ENOMEM;
1812
1813 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
1814 memcpy(dest->pcm_name, src_v4->pcm_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1815 memcpy(dest->dai_name, src_v4->dai_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1816 dest->pcm_id = src_v4->pcm_id;
1817 dest->dai_id = src_v4->dai_id;
1818 dest->playback = src_v4->playback;
1819 dest->capture = src_v4->capture;
1820 dest->compress = src_v4->compress;
1821 dest->num_streams = src_v4->num_streams;
1822 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
1823 memcpy(&dest->stream[i], &src_v4->stream[i],
1824 sizeof(struct snd_soc_tplg_stream));
1825
1826 for (i = 0; i < 2; i++)
1827 stream_caps_new_ver(&dest->caps[i], &src_v4->caps[i]);
1828
1829 *pcm = dest;
1830 return 0;
1831 }
1832
soc_tplg_pcm_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)1833 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1834 struct snd_soc_tplg_hdr *hdr)
1835 {
1836 struct snd_soc_tplg_pcm *pcm, *_pcm;
1837 int count;
1838 int size;
1839 int i;
1840 bool abi_match;
1841 int ret;
1842
1843 count = le32_to_cpu(hdr->count);
1844
1845 /* check the element size and count */
1846 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1847 size = le32_to_cpu(pcm->size);
1848 if (size > sizeof(struct snd_soc_tplg_pcm)
1849 || size < sizeof(struct snd_soc_tplg_pcm_v4)) {
1850 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1851 size);
1852 return -EINVAL;
1853 }
1854
1855 if (soc_tplg_check_elem_count(tplg,
1856 size, count,
1857 le32_to_cpu(hdr->payload_size),
1858 "PCM DAI"))
1859 return -EINVAL;
1860
1861 for (i = 0; i < count; i++) {
1862 pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1863 size = le32_to_cpu(pcm->size);
1864
1865 /* check ABI version by size, create a new version of pcm
1866 * if abi not match.
1867 */
1868 if (size == sizeof(*pcm)) {
1869 abi_match = true;
1870 _pcm = pcm;
1871 } else {
1872 abi_match = false;
1873 ret = pcm_new_ver(tplg, pcm, &_pcm);
1874 if (ret < 0)
1875 return ret;
1876 }
1877
1878 /* create the FE DAIs and DAI links */
1879 ret = soc_tplg_pcm_create(tplg, _pcm);
1880 if (ret < 0) {
1881 if (!abi_match)
1882 kfree(_pcm);
1883 return ret;
1884 }
1885
1886 /* offset by version-specific struct size and
1887 * real priv data size
1888 */
1889 tplg->pos += size + le32_to_cpu(_pcm->priv.size);
1890
1891 if (!abi_match)
1892 kfree(_pcm); /* free the duplicated one */
1893 }
1894
1895 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1896
1897 return 0;
1898 }
1899
1900 /**
1901 * set_link_hw_format - Set the HW audio format of the physical DAI link.
1902 * @link: &snd_soc_dai_link which should be updated
1903 * @cfg: physical link configs.
1904 *
1905 * Topology context contains a list of supported HW formats (configs) and
1906 * a default format ID for the physical link. This function will use this
1907 * default ID to choose the HW format to set the link's DAI format for init.
1908 */
set_link_hw_format(struct snd_soc_dai_link * link,struct snd_soc_tplg_link_config * cfg)1909 static void set_link_hw_format(struct snd_soc_dai_link *link,
1910 struct snd_soc_tplg_link_config *cfg)
1911 {
1912 struct snd_soc_tplg_hw_config *hw_config;
1913 unsigned char bclk_provider, fsync_provider;
1914 unsigned char invert_bclk, invert_fsync;
1915 int i;
1916
1917 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
1918 hw_config = &cfg->hw_config[i];
1919 if (hw_config->id != cfg->default_hw_config_id)
1920 continue;
1921
1922 link->dai_fmt = le32_to_cpu(hw_config->fmt) &
1923 SND_SOC_DAIFMT_FORMAT_MASK;
1924
1925 /* clock gating */
1926 switch (hw_config->clock_gated) {
1927 case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
1928 link->dai_fmt |= SND_SOC_DAIFMT_GATED;
1929 break;
1930
1931 case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
1932 link->dai_fmt |= SND_SOC_DAIFMT_CONT;
1933 break;
1934
1935 default:
1936 /* ignore the value */
1937 break;
1938 }
1939
1940 /* clock signal polarity */
1941 invert_bclk = hw_config->invert_bclk;
1942 invert_fsync = hw_config->invert_fsync;
1943 if (!invert_bclk && !invert_fsync)
1944 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
1945 else if (!invert_bclk && invert_fsync)
1946 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
1947 else if (invert_bclk && !invert_fsync)
1948 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
1949 else
1950 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
1951
1952 /* clock masters */
1953 bclk_provider = (hw_config->bclk_provider ==
1954 SND_SOC_TPLG_BCLK_CP);
1955 fsync_provider = (hw_config->fsync_provider ==
1956 SND_SOC_TPLG_FSYNC_CP);
1957 if (bclk_provider && fsync_provider)
1958 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
1959 else if (!bclk_provider && fsync_provider)
1960 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP;
1961 else if (bclk_provider && !fsync_provider)
1962 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC;
1963 else
1964 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
1965 }
1966 }
1967
1968 /**
1969 * link_new_ver - Create a new physical link config from the old
1970 * version of source.
1971 * @tplg: topology context
1972 * @src: old version of phyical link config as a source
1973 * @link: latest version of physical link config created from the source
1974 *
1975 * Support from version 4. User need free the returned link config manually.
1976 */
link_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_link_config * src,struct snd_soc_tplg_link_config ** link)1977 static int link_new_ver(struct soc_tplg *tplg,
1978 struct snd_soc_tplg_link_config *src,
1979 struct snd_soc_tplg_link_config **link)
1980 {
1981 struct snd_soc_tplg_link_config *dest;
1982 struct snd_soc_tplg_link_config_v4 *src_v4;
1983 int i;
1984
1985 *link = NULL;
1986
1987 if (le32_to_cpu(src->size) !=
1988 sizeof(struct snd_soc_tplg_link_config_v4)) {
1989 dev_err(tplg->dev, "ASoC: invalid physical link config size\n");
1990 return -EINVAL;
1991 }
1992
1993 dev_warn(tplg->dev, "ASoC: old version of physical link config\n");
1994
1995 src_v4 = (struct snd_soc_tplg_link_config_v4 *)src;
1996 dest = kzalloc(sizeof(*dest), GFP_KERNEL);
1997 if (!dest)
1998 return -ENOMEM;
1999
2000 dest->size = cpu_to_le32(sizeof(*dest));
2001 dest->id = src_v4->id;
2002 dest->num_streams = src_v4->num_streams;
2003 for (i = 0; i < le32_to_cpu(dest->num_streams); i++)
2004 memcpy(&dest->stream[i], &src_v4->stream[i],
2005 sizeof(struct snd_soc_tplg_stream));
2006
2007 *link = dest;
2008 return 0;
2009 }
2010
2011 /**
2012 * snd_soc_find_dai_link - Find a DAI link
2013 *
2014 * @card: soc card
2015 * @id: DAI link ID to match
2016 * @name: DAI link name to match, optional
2017 * @stream_name: DAI link stream name to match, optional
2018 *
2019 * This function will search all existing DAI links of the soc card to
2020 * find the link of the same ID. Since DAI links may not have their
2021 * unique ID, so name and stream name should also match if being
2022 * specified.
2023 *
2024 * Return: pointer of DAI link, or NULL if not found.
2025 */
snd_soc_find_dai_link(struct snd_soc_card * card,int id,const char * name,const char * stream_name)2026 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
2027 int id, const char *name,
2028 const char *stream_name)
2029 {
2030 struct snd_soc_pcm_runtime *rtd;
2031
2032 for_each_card_rtds(card, rtd) {
2033 struct snd_soc_dai_link *link = rtd->dai_link;
2034
2035 if (link->id != id)
2036 continue;
2037
2038 if (name && (!link->name || !strstr(link->name, name)))
2039 continue;
2040
2041 if (stream_name && (!link->stream_name ||
2042 !strstr(link->stream_name, stream_name)))
2043 continue;
2044
2045 return link;
2046 }
2047
2048 return NULL;
2049 }
2050
2051 /* Find and configure an existing physical DAI link */
soc_tplg_link_config(struct soc_tplg * tplg,struct snd_soc_tplg_link_config * cfg)2052 static int soc_tplg_link_config(struct soc_tplg *tplg,
2053 struct snd_soc_tplg_link_config *cfg)
2054 {
2055 struct snd_soc_dai_link *link;
2056 const char *name, *stream_name;
2057 size_t len;
2058 int ret;
2059
2060 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2061 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2062 return -EINVAL;
2063 else if (len)
2064 name = cfg->name;
2065 else
2066 name = NULL;
2067
2068 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
2069 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
2070 return -EINVAL;
2071 else if (len)
2072 stream_name = cfg->stream_name;
2073 else
2074 stream_name = NULL;
2075
2076 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
2077 name, stream_name);
2078 if (!link) {
2079 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
2080 name, cfg->id);
2081 return -EINVAL;
2082 }
2083
2084 /* hw format */
2085 if (cfg->num_hw_configs)
2086 set_link_hw_format(link, cfg);
2087
2088 /* flags */
2089 if (cfg->flag_mask)
2090 set_link_flags(link,
2091 le32_to_cpu(cfg->flag_mask),
2092 le32_to_cpu(cfg->flags));
2093
2094 /* pass control to component driver for optional further init */
2095 ret = soc_tplg_dai_link_load(tplg, link, cfg);
2096 if (ret < 0) {
2097 dev_err(tplg->dev, "ASoC: physical link loading failed\n");
2098 return ret;
2099 }
2100
2101 /* for unloading it in snd_soc_tplg_component_remove */
2102 link->dobj.index = tplg->index;
2103 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
2104 if (tplg->ops)
2105 link->dobj.unload = tplg->ops->link_unload;
2106 list_add(&link->dobj.list, &tplg->comp->dobj_list);
2107
2108 return 0;
2109 }
2110
2111
2112 /* Load physical link config elements from the topology context */
soc_tplg_link_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2113 static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
2114 struct snd_soc_tplg_hdr *hdr)
2115 {
2116 struct snd_soc_tplg_link_config *link, *_link;
2117 int count;
2118 int size;
2119 int i, ret;
2120 bool abi_match;
2121
2122 count = le32_to_cpu(hdr->count);
2123
2124 /* check the element size and count */
2125 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2126 size = le32_to_cpu(link->size);
2127 if (size > sizeof(struct snd_soc_tplg_link_config)
2128 || size < sizeof(struct snd_soc_tplg_link_config_v4)) {
2129 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
2130 size);
2131 return -EINVAL;
2132 }
2133
2134 if (soc_tplg_check_elem_count(tplg, size, count,
2135 le32_to_cpu(hdr->payload_size),
2136 "physical link config"))
2137 return -EINVAL;
2138
2139 /* config physical DAI links */
2140 for (i = 0; i < count; i++) {
2141 link = (struct snd_soc_tplg_link_config *)tplg->pos;
2142 size = le32_to_cpu(link->size);
2143 if (size == sizeof(*link)) {
2144 abi_match = true;
2145 _link = link;
2146 } else {
2147 abi_match = false;
2148 ret = link_new_ver(tplg, link, &_link);
2149 if (ret < 0)
2150 return ret;
2151 }
2152
2153 ret = soc_tplg_link_config(tplg, _link);
2154 if (ret < 0) {
2155 if (!abi_match)
2156 kfree(_link);
2157 return ret;
2158 }
2159
2160 /* offset by version-specific struct size and
2161 * real priv data size
2162 */
2163 tplg->pos += size + le32_to_cpu(_link->priv.size);
2164
2165 if (!abi_match)
2166 kfree(_link); /* free the duplicated one */
2167 }
2168
2169 return 0;
2170 }
2171
2172 /**
2173 * soc_tplg_dai_config - Find and configure an existing physical DAI.
2174 * @tplg: topology context
2175 * @d: physical DAI configs.
2176 *
2177 * The physical dai should already be registered by the platform driver.
2178 * The platform driver should specify the DAI name and ID for matching.
2179 */
soc_tplg_dai_config(struct soc_tplg * tplg,struct snd_soc_tplg_dai * d)2180 static int soc_tplg_dai_config(struct soc_tplg *tplg,
2181 struct snd_soc_tplg_dai *d)
2182 {
2183 struct snd_soc_dai_link_component dai_component;
2184 struct snd_soc_dai *dai;
2185 struct snd_soc_dai_driver *dai_drv;
2186 struct snd_soc_pcm_stream *stream;
2187 struct snd_soc_tplg_stream_caps *caps;
2188 int ret;
2189
2190 memset(&dai_component, 0, sizeof(dai_component));
2191
2192 dai_component.dai_name = d->dai_name;
2193 dai = snd_soc_find_dai(&dai_component);
2194 if (!dai) {
2195 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
2196 d->dai_name);
2197 return -EINVAL;
2198 }
2199
2200 if (le32_to_cpu(d->dai_id) != dai->id) {
2201 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
2202 d->dai_name);
2203 return -EINVAL;
2204 }
2205
2206 dai_drv = dai->driver;
2207 if (!dai_drv)
2208 return -EINVAL;
2209
2210 if (d->playback) {
2211 stream = &dai_drv->playback;
2212 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
2213 ret = set_stream_info(tplg, stream, caps);
2214 if (ret < 0)
2215 goto err;
2216 }
2217
2218 if (d->capture) {
2219 stream = &dai_drv->capture;
2220 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
2221 ret = set_stream_info(tplg, stream, caps);
2222 if (ret < 0)
2223 goto err;
2224 }
2225
2226 if (d->flag_mask)
2227 set_dai_flags(dai_drv,
2228 le32_to_cpu(d->flag_mask),
2229 le32_to_cpu(d->flags));
2230
2231 /* pass control to component driver for optional further init */
2232 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
2233 if (ret < 0) {
2234 dev_err(tplg->dev, "ASoC: DAI loading failed\n");
2235 goto err;
2236 }
2237
2238 return 0;
2239
2240 err:
2241 return ret;
2242 }
2243
2244 /* load physical DAI elements */
soc_tplg_dai_elems_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2245 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
2246 struct snd_soc_tplg_hdr *hdr)
2247 {
2248 int count;
2249 int i;
2250
2251 count = le32_to_cpu(hdr->count);
2252
2253 /* config the existing BE DAIs */
2254 for (i = 0; i < count; i++) {
2255 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos;
2256 int ret;
2257
2258 if (le32_to_cpu(dai->size) != sizeof(*dai)) {
2259 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
2260 return -EINVAL;
2261 }
2262
2263 ret = soc_tplg_dai_config(tplg, dai);
2264 if (ret < 0) {
2265 dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
2266 return ret;
2267 }
2268
2269 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
2270 }
2271
2272 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
2273 return 0;
2274 }
2275
2276 /**
2277 * manifest_new_ver - Create a new version of manifest from the old version
2278 * of source.
2279 * @tplg: topology context
2280 * @src: old version of manifest as a source
2281 * @manifest: latest version of manifest created from the source
2282 *
2283 * Support from version 4. Users need free the returned manifest manually.
2284 */
manifest_new_ver(struct soc_tplg * tplg,struct snd_soc_tplg_manifest * src,struct snd_soc_tplg_manifest ** manifest)2285 static int manifest_new_ver(struct soc_tplg *tplg,
2286 struct snd_soc_tplg_manifest *src,
2287 struct snd_soc_tplg_manifest **manifest)
2288 {
2289 struct snd_soc_tplg_manifest *dest;
2290 struct snd_soc_tplg_manifest_v4 *src_v4;
2291 int size;
2292
2293 *manifest = NULL;
2294
2295 size = le32_to_cpu(src->size);
2296 if (size != sizeof(*src_v4)) {
2297 dev_warn(tplg->dev, "ASoC: invalid manifest size %d\n",
2298 size);
2299 if (size)
2300 return -EINVAL;
2301 src->size = cpu_to_le32(sizeof(*src_v4));
2302 }
2303
2304 dev_warn(tplg->dev, "ASoC: old version of manifest\n");
2305
2306 src_v4 = (struct snd_soc_tplg_manifest_v4 *)src;
2307 dest = kzalloc(sizeof(*dest) + le32_to_cpu(src_v4->priv.size),
2308 GFP_KERNEL);
2309 if (!dest)
2310 return -ENOMEM;
2311
2312 dest->size = cpu_to_le32(sizeof(*dest)); /* size of latest abi version */
2313 dest->control_elems = src_v4->control_elems;
2314 dest->widget_elems = src_v4->widget_elems;
2315 dest->graph_elems = src_v4->graph_elems;
2316 dest->pcm_elems = src_v4->pcm_elems;
2317 dest->dai_link_elems = src_v4->dai_link_elems;
2318 dest->priv.size = src_v4->priv.size;
2319 if (dest->priv.size)
2320 memcpy(dest->priv.data, src_v4->priv.data,
2321 le32_to_cpu(src_v4->priv.size));
2322
2323 *manifest = dest;
2324 return 0;
2325 }
2326
soc_tplg_manifest_load(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2327 static int soc_tplg_manifest_load(struct soc_tplg *tplg,
2328 struct snd_soc_tplg_hdr *hdr)
2329 {
2330 struct snd_soc_tplg_manifest *manifest, *_manifest;
2331 bool abi_match;
2332 int ret = 0;
2333
2334 manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
2335
2336 /* check ABI version by size, create a new manifest if abi not match */
2337 if (le32_to_cpu(manifest->size) == sizeof(*manifest)) {
2338 abi_match = true;
2339 _manifest = manifest;
2340 } else {
2341 abi_match = false;
2342
2343 ret = manifest_new_ver(tplg, manifest, &_manifest);
2344 if (ret < 0)
2345 return ret;
2346 }
2347
2348 /* pass control to component driver for optional further init */
2349 if (tplg->ops && tplg->ops->manifest)
2350 ret = tplg->ops->manifest(tplg->comp, tplg->index, _manifest);
2351
2352 if (!abi_match) /* free the duplicated one */
2353 kfree(_manifest);
2354
2355 return ret;
2356 }
2357
2358 /* validate header magic, size and type */
soc_tplg_valid_header(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2359 static int soc_tplg_valid_header(struct soc_tplg *tplg,
2360 struct snd_soc_tplg_hdr *hdr)
2361 {
2362 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
2363 dev_err(tplg->dev,
2364 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
2365 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2366 tplg->fw->size);
2367 return -EINVAL;
2368 }
2369
2370 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) {
2371 dev_err(tplg->dev,
2372 "ASoC: invalid header of type %d at offset %ld payload_size %d\n",
2373 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
2374 hdr->payload_size);
2375 return -EINVAL;
2376 }
2377
2378 /* big endian firmware objects not supported atm */
2379 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
2380 dev_err(tplg->dev,
2381 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
2382 tplg->pass, hdr->magic,
2383 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2384 return -EINVAL;
2385 }
2386
2387 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2388 dev_err(tplg->dev,
2389 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2390 tplg->pass, hdr->magic,
2391 soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2392 return -EINVAL;
2393 }
2394
2395 /* Support ABI from version 4 */
2396 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2397 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2398 dev_err(tplg->dev,
2399 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2400 tplg->pass, hdr->abi,
2401 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2402 tplg->fw->size);
2403 return -EINVAL;
2404 }
2405
2406 if (hdr->payload_size == 0) {
2407 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2408 soc_tplg_get_hdr_offset(tplg));
2409 return -EINVAL;
2410 }
2411
2412 return 0;
2413 }
2414
2415 /* check header type and call appropriate handler */
soc_tplg_load_header(struct soc_tplg * tplg,struct snd_soc_tplg_hdr * hdr)2416 static int soc_tplg_load_header(struct soc_tplg *tplg,
2417 struct snd_soc_tplg_hdr *hdr)
2418 {
2419 int (*elem_load)(struct soc_tplg *tplg,
2420 struct snd_soc_tplg_hdr *hdr);
2421 unsigned int hdr_pass;
2422
2423 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2424
2425 tplg->index = le32_to_cpu(hdr->index);
2426
2427 switch (le32_to_cpu(hdr->type)) {
2428 case SND_SOC_TPLG_TYPE_MIXER:
2429 case SND_SOC_TPLG_TYPE_ENUM:
2430 case SND_SOC_TPLG_TYPE_BYTES:
2431 hdr_pass = SOC_TPLG_PASS_CONTROL;
2432 elem_load = soc_tplg_kcontrol_elems_load;
2433 break;
2434 case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2435 hdr_pass = SOC_TPLG_PASS_GRAPH;
2436 elem_load = soc_tplg_dapm_graph_elems_load;
2437 break;
2438 case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2439 hdr_pass = SOC_TPLG_PASS_WIDGET;
2440 elem_load = soc_tplg_dapm_widget_elems_load;
2441 break;
2442 case SND_SOC_TPLG_TYPE_PCM:
2443 hdr_pass = SOC_TPLG_PASS_PCM_DAI;
2444 elem_load = soc_tplg_pcm_elems_load;
2445 break;
2446 case SND_SOC_TPLG_TYPE_DAI:
2447 hdr_pass = SOC_TPLG_PASS_BE_DAI;
2448 elem_load = soc_tplg_dai_elems_load;
2449 break;
2450 case SND_SOC_TPLG_TYPE_DAI_LINK:
2451 case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2452 /* physical link configurations */
2453 hdr_pass = SOC_TPLG_PASS_LINK;
2454 elem_load = soc_tplg_link_elems_load;
2455 break;
2456 case SND_SOC_TPLG_TYPE_MANIFEST:
2457 hdr_pass = SOC_TPLG_PASS_MANIFEST;
2458 elem_load = soc_tplg_manifest_load;
2459 break;
2460 default:
2461 /* bespoke vendor data object */
2462 hdr_pass = SOC_TPLG_PASS_VENDOR;
2463 elem_load = soc_tplg_vendor_load;
2464 break;
2465 }
2466
2467 if (tplg->pass == hdr_pass) {
2468 dev_dbg(tplg->dev,
2469 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2470 hdr->payload_size, hdr->type, hdr->version,
2471 hdr->vendor_type, tplg->pass);
2472 return elem_load(tplg, hdr);
2473 }
2474
2475 return 0;
2476 }
2477
2478 /* process the topology file headers */
soc_tplg_process_headers(struct soc_tplg * tplg)2479 static int soc_tplg_process_headers(struct soc_tplg *tplg)
2480 {
2481 int ret;
2482
2483 /* process the header types from start to end */
2484 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) {
2485 struct snd_soc_tplg_hdr *hdr;
2486
2487 tplg->hdr_pos = tplg->fw->data;
2488 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2489
2490 while (!soc_tplg_is_eof(tplg)) {
2491
2492 /* make sure header is valid before loading */
2493 ret = soc_tplg_valid_header(tplg, hdr);
2494 if (ret < 0)
2495 return ret;
2496
2497 /* load the header object */
2498 ret = soc_tplg_load_header(tplg, hdr);
2499 if (ret < 0) {
2500 if (ret != -EPROBE_DEFER) {
2501 dev_err(tplg->dev,
2502 "ASoC: topology: could not load header: %d\n",
2503 ret);
2504 }
2505 return ret;
2506 }
2507
2508 /* goto next header */
2509 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2510 sizeof(struct snd_soc_tplg_hdr);
2511 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2512 }
2513
2514 }
2515
2516 /* signal DAPM we are complete */
2517 ret = soc_tplg_dapm_complete(tplg);
2518
2519 return ret;
2520 }
2521
soc_tplg_load(struct soc_tplg * tplg)2522 static int soc_tplg_load(struct soc_tplg *tplg)
2523 {
2524 int ret;
2525
2526 ret = soc_tplg_process_headers(tplg);
2527 if (ret == 0)
2528 return soc_tplg_complete(tplg);
2529
2530 return ret;
2531 }
2532
2533 /* 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)2534 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2535 struct snd_soc_tplg_ops *ops, const struct firmware *fw)
2536 {
2537 struct soc_tplg tplg;
2538 int ret;
2539
2540 /*
2541 * check if we have sane parameters:
2542 * comp - needs to exist to keep and reference data while parsing
2543 * comp->card - used for setting card related parameters
2544 * comp->card->dev - used for resource management and prints
2545 * fw - we need it, as it is the very thing we parse
2546 */
2547 if (!comp || !comp->card || !comp->card->dev || !fw)
2548 return -EINVAL;
2549
2550 /* setup parsing context */
2551 memset(&tplg, 0, sizeof(tplg));
2552 tplg.fw = fw;
2553 tplg.dev = comp->card->dev;
2554 tplg.comp = comp;
2555 if (ops) {
2556 tplg.ops = ops;
2557 tplg.io_ops = ops->io_ops;
2558 tplg.io_ops_count = ops->io_ops_count;
2559 tplg.bytes_ext_ops = ops->bytes_ext_ops;
2560 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2561 }
2562
2563 ret = soc_tplg_load(&tplg);
2564 /* free the created components if fail to load topology */
2565 if (ret)
2566 snd_soc_tplg_component_remove(comp);
2567
2568 return ret;
2569 }
2570 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2571
2572 /* remove dynamic controls from the component driver */
snd_soc_tplg_component_remove(struct snd_soc_component * comp)2573 int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
2574 {
2575 struct snd_soc_dobj *dobj, *next_dobj;
2576 int pass;
2577
2578 /* process the header types from end to start */
2579 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) {
2580
2581 /* remove mixer controls */
2582 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2583 list) {
2584
2585 switch (dobj->type) {
2586 case SND_SOC_DOBJ_BYTES:
2587 case SND_SOC_DOBJ_ENUM:
2588 case SND_SOC_DOBJ_MIXER:
2589 soc_tplg_remove_kcontrol(comp, dobj, pass);
2590 break;
2591 case SND_SOC_DOBJ_GRAPH:
2592 soc_tplg_remove_route(comp, dobj, pass);
2593 break;
2594 case SND_SOC_DOBJ_WIDGET:
2595 soc_tplg_remove_widget(comp, dobj, pass);
2596 break;
2597 case SND_SOC_DOBJ_PCM:
2598 soc_tplg_remove_dai(comp, dobj, pass);
2599 break;
2600 case SND_SOC_DOBJ_DAI_LINK:
2601 soc_tplg_remove_link(comp, dobj, pass);
2602 break;
2603 case SND_SOC_DOBJ_BACKEND_LINK:
2604 /*
2605 * call link_unload ops if extra
2606 * deinitialization is needed.
2607 */
2608 remove_backend_link(comp, dobj, pass);
2609 break;
2610 default:
2611 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2612 dobj->type);
2613 break;
2614 }
2615 }
2616 }
2617
2618 /* let caller know if FW can be freed when no objects are left */
2619 return !list_empty(&comp->dobj_list);
2620 }
2621 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);
2622