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 */
  54struct 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	const struct snd_soc_tplg_ops *ops;
  77};
  78
 
 
 
 
 
 
 
 
 
  79/* check we dont overflow the data for this control chunk */
  80static 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
 103static 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
 112static 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
 117static 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. */
 123static 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
 152struct soc_tplg_map {
 153	int uid;
 154	int kid;
 155};
 156
 157/* mapping of widget types from UAPI IDs to kernel IDs */
 158static 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
 185static 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
 198static 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
 211static 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
 223static 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
 232static 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 */
 242static 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 */
 266static 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 */
 278static 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 */
 289static 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 */
 301static 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 */
 311static 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 */
 320static 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 */
 344static 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 */
 354static 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 */
 370static 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 */
 383static 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		for (i = 0; i < w->num_kcontrols; i++)
 399			snd_ctl_remove(card, w->kcontrols[i]);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 400
 401	list_del(&dobj->list);
 402
 
 
 
 
 
 403	/* widget w is freed by soc-dapm.c */
 404}
 405
 406/* remove DAI configurations */
 407static void soc_tplg_remove_dai(struct snd_soc_component *comp,
 408	struct snd_soc_dobj *dobj, int pass)
 409{
 410	struct snd_soc_dai_driver *dai_drv =
 411		container_of(dobj, struct snd_soc_dai_driver, dobj);
 412	struct snd_soc_dai *dai, *_dai;
 413
 414	if (pass != SOC_TPLG_PASS_PCM_DAI)
 415		return;
 416
 417	if (dobj->unload)
 418		dobj->unload(comp, dobj);
 419
 420	for_each_component_dais_safe(comp, dai, _dai)
 421		if (dai->driver == dai_drv)
 422			snd_soc_unregister_dai(dai);
 423
 424	list_del(&dobj->list);
 
 425}
 426
 427/* remove link configurations */
 428static void soc_tplg_remove_link(struct snd_soc_component *comp,
 429	struct snd_soc_dobj *dobj, int pass)
 430{
 431	struct snd_soc_dai_link *link =
 432		container_of(dobj, struct snd_soc_dai_link, dobj);
 433
 434	if (pass != SOC_TPLG_PASS_PCM_DAI)
 435		return;
 436
 437	if (dobj->unload)
 438		dobj->unload(comp, dobj);
 439
 440	list_del(&dobj->list);
 441	snd_soc_remove_pcm_runtime(comp->card,
 442			snd_soc_get_pcm_runtime(comp->card, link));
 443}
 444
 445/* unload dai link */
 446static void remove_backend_link(struct snd_soc_component *comp,
 447	struct snd_soc_dobj *dobj, int pass)
 448{
 449	if (pass != SOC_TPLG_PASS_LINK)
 450		return;
 451
 452	if (dobj->unload)
 453		dobj->unload(comp, dobj);
 454
 455	/*
 456	 * We don't free the link here as what soc_tplg_remove_link() do since BE
 457	 * links are not allocated by topology.
 458	 * We however need to reset the dobj type to its initial values
 459	 */
 460	dobj->type = SND_SOC_DOBJ_NONE;
 461	list_del(&dobj->list);
 
 
 462}
 463
 464/* bind a kcontrol to it's IO handlers */
 465static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr,
 466	struct snd_kcontrol_new *k,
 467	const struct soc_tplg *tplg)
 468{
 469	const struct snd_soc_tplg_kcontrol_ops *ops;
 470	const struct snd_soc_tplg_bytes_ext_ops *ext_ops;
 471	int num_ops, i;
 472
 473	if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES
 474		&& k->iface & SNDRV_CTL_ELEM_IFACE_MIXER
 475		&& (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ
 476		    || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
 477		&& k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
 478		struct soc_bytes_ext *sbe;
 479		struct snd_soc_tplg_bytes_control *be;
 480
 481		sbe = (struct soc_bytes_ext *)k->private_value;
 482		be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
 483
 484		/* TLV bytes controls need standard kcontrol info handler,
 485		 * TLV callback and extended put/get handlers.
 486		 */
 487		k->info = snd_soc_bytes_info_ext;
 488		k->tlv.c = snd_soc_bytes_tlv_callback;
 489
 490		/*
 491		 * When a topology-based implementation abuses the
 492		 * control interface and uses bytes_ext controls of
 493		 * more than 512 bytes, we need to disable the size
 494		 * checks, otherwise accesses to such controls will
 495		 * return an -EINVAL error and prevent the card from
 496		 * being configured.
 497		 */
 498		if (sbe->max > 512)
 499			k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK;
 500
 501		ext_ops = tplg->bytes_ext_ops;
 502		num_ops = tplg->bytes_ext_ops_count;
 503		for (i = 0; i < num_ops; i++) {
 504			if (!sbe->put &&
 505			    ext_ops[i].id == le32_to_cpu(be->ext_ops.put))
 506				sbe->put = ext_ops[i].put;
 507			if (!sbe->get &&
 508			    ext_ops[i].id == le32_to_cpu(be->ext_ops.get))
 509				sbe->get = ext_ops[i].get;
 510		}
 511
 512		if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get)
 513			return -EINVAL;
 514		if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put)
 515			return -EINVAL;
 516		return 0;
 517	}
 518
 519	/* try and map vendor specific kcontrol handlers first */
 520	ops = tplg->io_ops;
 521	num_ops = tplg->io_ops_count;
 522	for (i = 0; i < num_ops; i++) {
 523
 524		if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
 525			k->put = ops[i].put;
 526		if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
 527			k->get = ops[i].get;
 528		if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
 529			k->info = ops[i].info;
 530	}
 531
 532	/* vendor specific handlers found ? */
 533	if (k->put && k->get && k->info)
 534		return 0;
 535
 536	/* none found so try standard kcontrol handlers */
 537	ops = io_ops;
 538	num_ops = ARRAY_SIZE(io_ops);
 539	for (i = 0; i < num_ops; i++) {
 540
 541		if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put))
 542			k->put = ops[i].put;
 543		if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get))
 544			k->get = ops[i].get;
 545		if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info))
 546			k->info = ops[i].info;
 547	}
 548
 549	/* standard handlers found ? */
 550	if (k->put && k->get && k->info)
 551		return 0;
 552
 553	/* nothing to bind */
 554	return -EINVAL;
 555}
 556
 557/* bind a widgets to it's evnt handlers */
 558int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
 559		const struct snd_soc_tplg_widget_events *events,
 560		int num_events, u16 event_type)
 561{
 562	int i;
 563
 564	w->event = NULL;
 565
 566	for (i = 0; i < num_events; i++) {
 567		if (event_type == events[i].type) {
 568
 569			/* found - so assign event */
 570			w->event = events[i].event_handler;
 571			return 0;
 572		}
 573	}
 574
 575	/* not found */
 576	return -EINVAL;
 577}
 578EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event);
 579
 580/* optionally pass new dynamic kcontrol to component driver. */
 581static int soc_tplg_control_load(struct soc_tplg *tplg,
 582	struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr)
 583{
 584	int ret = 0;
 
 585
 586	if (tplg->ops && tplg->ops->control_load)
 587		ret = tplg->ops->control_load(tplg->comp, tplg->index, k, hdr);
 588
 589	if (ret)
 590		dev_err(tplg->dev, "ASoC: failed to init %s\n", hdr->name);
 591
 592	return ret;
 593}
 594
 595
 596static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
 597	struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale)
 598{
 599	unsigned int item_len = 2 * sizeof(unsigned int);
 600	unsigned int *p;
 601
 602	p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
 603	if (!p)
 604		return -ENOMEM;
 605
 606	p[0] = SNDRV_CTL_TLVT_DB_SCALE;
 607	p[1] = item_len;
 608	p[2] = le32_to_cpu(scale->min);
 609	p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK)
 610		| (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0);
 611
 612	kc->tlv.p = (void *)p;
 613	return 0;
 614}
 615
 616static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 617	struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc)
 618{
 619	struct snd_soc_tplg_ctl_tlv *tplg_tlv;
 620	u32 access = le32_to_cpu(tc->access);
 621
 622	if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE))
 623		return 0;
 624
 625	if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) {
 626		tplg_tlv = &tc->tlv;
 627		switch (le32_to_cpu(tplg_tlv->type)) {
 628		case SNDRV_CTL_TLVT_DB_SCALE:
 629			return soc_tplg_create_tlv_db_scale(tplg, kc,
 630					&tplg_tlv->scale);
 631
 632		/* TODO: add support for other TLV types */
 633		default:
 634			dev_dbg(tplg->dev, "Unsupported TLV type %d\n",
 635					tplg_tlv->type);
 636			return -EINVAL;
 637		}
 638	}
 639
 640	return 0;
 641}
 642
 643static int soc_tplg_control_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 644{
 645	struct snd_soc_tplg_mixer_control *mc;
 646	struct soc_mixer_control *sm;
 647	int err;
 
 648
 649	mc = (struct snd_soc_tplg_mixer_control *)tplg->pos;
 
 
 650
 651	/* validate kcontrol */
 652	if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 653		return -EINVAL;
 
 654
 655	sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
 656	if (!sm)
 657		return -ENOMEM;
 658
 659	tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + le32_to_cpu(mc->priv.size);
 
 
 
 660
 661	dev_dbg(tplg->dev, "ASoC: adding mixer kcontrol %s with access 0x%x\n",
 662		mc->hdr.name, mc->hdr.access);
 
 
 
 663
 664	kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
 665	if (!kc->name)
 666		return -ENOMEM;
 667	kc->private_value = (long)sm;
 668	kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 669	kc->access = le32_to_cpu(mc->hdr.access);
 670
 671	/* we only support FL/FR channel mapping atm */
 672	sm->reg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FL);
 673	sm->rreg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FR);
 674	sm->shift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FL);
 675	sm->rshift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FR);
 676
 677	sm->max = le32_to_cpu(mc->max);
 678	sm->min = le32_to_cpu(mc->min);
 679	sm->invert = le32_to_cpu(mc->invert);
 680	sm->platform_max = le32_to_cpu(mc->platform_max);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 681
 682	/* map io handlers */
 683	err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg);
 684	if (err) {
 685		soc_control_err(tplg, &mc->hdr, mc->hdr.name);
 686		return err;
 687	}
 
 
 
 688
 689	/* create any TLV data */
 690	err = soc_tplg_create_tlv(tplg, kc, &mc->hdr);
 691	if (err < 0) {
 692		dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", mc->hdr.name);
 693		return err;
 
 
 
 
 
 
 
 
 
 
 694	}
 695
 696	/* pass control to driver for optional further init */
 697	return soc_tplg_control_load(tplg, kc, &mc->hdr);
 698}
 699
 700static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se,
 701				       struct snd_soc_tplg_enum_control *ec)
 702{
 703	int i, ret;
 704
 705	if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts))
 706		return -EINVAL;
 707
 708	se->dobj.control.dtexts =
 709		devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 710	if (se->dobj.control.dtexts == NULL)
 711		return -ENOMEM;
 712
 713	for (i = 0; i < le32_to_cpu(ec->items); i++) {
 714
 715		if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 716			SNDRV_CTL_ELEM_ID_NAME_MAXLEN) {
 717			ret = -EINVAL;
 718			goto err;
 719		}
 720
 721		se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL);
 722		if (!se->dobj.control.dtexts[i]) {
 723			ret = -ENOMEM;
 724			goto err;
 725		}
 726	}
 727
 728	se->items = le32_to_cpu(ec->items);
 729	se->texts = (const char * const *)se->dobj.control.dtexts;
 730	return 0;
 731
 732err:
 
 
 
 733	return ret;
 734}
 735
 736static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
 737					struct snd_soc_tplg_enum_control *ec)
 738{
 739	int i;
 740
 741	/*
 742	 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS
 743	 * values instead of using ARRAY_SIZE(ec->values) due to the fact that
 744	 * it is oversized for its purpose. Additionally it is done so because
 745	 * it is defined in UAPI header where it can't be easily changed.
 746	 */
 747	if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS)
 748		return -EINVAL;
 749
 750	se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items),
 751					   sizeof(*se->dobj.control.dvalues),
 752					   GFP_KERNEL);
 753	if (!se->dobj.control.dvalues)
 754		return -ENOMEM;
 755
 756	/* convert from little-endian */
 757	for (i = 0; i < le32_to_cpu(ec->items); i++) {
 758		se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
 759	}
 760
 761	se->items = le32_to_cpu(ec->items);
 762	se->values = (const unsigned int *)se->dobj.control.dvalues;
 763	return 0;
 764}
 765
 766static int soc_tplg_control_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
 
 767{
 768	struct snd_soc_tplg_enum_control *ec;
 769	struct soc_enum *se;
 770	int err;
 
 771
 772	ec = (struct snd_soc_tplg_enum_control *)tplg->pos;
 
 
 773
 774	/* validate kcontrol */
 775	if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 776		return -EINVAL;
 
 777
 778	se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
 779	if (!se)
 780		return -ENOMEM;
 
 
 
 
 
 
 781
 782	tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + le32_to_cpu(ec->priv.size));
 
 
 783
 784	dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", ec->hdr.name, ec->items);
 
 785
 786	kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
 787	if (!kc->name)
 788		return -ENOMEM;
 789	kc->private_value = (long)se;
 790	kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 791	kc->access = le32_to_cpu(ec->hdr.access);
 
 
 
 
 
 
 
 
 
 
 
 
 792
 793	/* we only support FL/FR channel mapping atm */
 794	se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL);
 795	se->shift_l = tplg_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FL);
 796	se->shift_r = tplg_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FR);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 797
 798	se->mask = le32_to_cpu(ec->mask);
 
 
 
 
 
 
 799
 800	switch (le32_to_cpu(ec->hdr.ops.info)) {
 801	case SND_SOC_TPLG_CTL_ENUM_VALUE:
 802	case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
 803		err = soc_tplg_denum_create_values(tplg, se, ec);
 804		if (err < 0) {
 805			dev_err(tplg->dev, "ASoC: could not create values for %s\n", ec->hdr.name);
 806			return err;
 
 
 807		}
 808		fallthrough;
 809	case SND_SOC_TPLG_CTL_ENUM:
 810	case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
 811	case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
 812		err = soc_tplg_denum_create_texts(tplg, se, ec);
 813		if (err < 0) {
 814			dev_err(tplg->dev, "ASoC: could not create texts for %s\n", ec->hdr.name);
 815			return err;
 
 816		}
 817		break;
 818	default:
 819		dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n",
 820			ec->hdr.ops.info, ec->hdr.name);
 821		return -EINVAL;
 822	}
 823
 824	/* map io handlers */
 825	err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg);
 826	if (err) {
 827		soc_control_err(tplg, &ec->hdr, ec->hdr.name);
 828		return err;
 829	}
 830
 831	/* pass control to driver for optional further init */
 832	return soc_tplg_control_load(tplg, kc, &ec->hdr);
 833}
 834
 835static int soc_tplg_control_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc)
 
 836{
 837	struct snd_soc_tplg_bytes_control *be;
 838	struct soc_bytes_ext *sbe;
 839	int err;
 840
 841	be = (struct snd_soc_tplg_bytes_control *)tplg->pos;
 842
 843	/* validate kcontrol */
 844	if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 845		return -EINVAL;
 846
 847	sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
 848	if (!sbe)
 849		return -ENOMEM;
 850
 851	tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + le32_to_cpu(be->priv.size));
 
 
 
 852
 853	dev_dbg(tplg->dev, "ASoC: adding bytes kcontrol %s with access 0x%x\n",
 854		be->hdr.name, be->hdr.access);
 855
 856	kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
 857	if (!kc->name)
 858		return -ENOMEM;
 859	kc->private_value = (long)sbe;
 860	kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 861	kc->access = le32_to_cpu(be->hdr.access);
 862
 863	sbe->max = le32_to_cpu(be->max);
 864
 865	/* map standard io handlers and check for external handlers */
 866	err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg);
 867	if (err) {
 868		soc_control_err(tplg, &be->hdr, be->hdr.name);
 869		return err;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 870	}
 871
 872	/* pass control to driver for optional further init */
 873	return soc_tplg_control_load(tplg, kc, &be->hdr);
 874}
 875
 876static int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size)
 
 877{
 878	struct snd_kcontrol_new kc = {0};
 879	struct soc_bytes_ext *sbe;
 880	int ret;
 
 
 
 
 
 
 881
 882	if (soc_tplg_check_elem_count(tplg,
 883				      sizeof(struct snd_soc_tplg_bytes_control),
 884				      1, size, "mixer bytes"))
 
 
 
 885		return -EINVAL;
 
 886
 887	ret = soc_tplg_control_dbytes_create(tplg, &kc);
 888	if (ret)
 889		return ret;
 890
 891	/* register dynamic object */
 892	sbe = (struct soc_bytes_ext *)kc.private_value;
 
 893
 894	INIT_LIST_HEAD(&sbe->dobj.list);
 895	sbe->dobj.type = SND_SOC_DOBJ_BYTES;
 896	sbe->dobj.index = tplg->index;
 897	if (tplg->ops)
 898		sbe->dobj.unload = tplg->ops->control_unload;
 
 
 
 
 
 899
 900	/* create control directly */
 901	ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol);
 902	if (ret < 0)
 903		return ret;
 
 
 
 904
 905	list_add(&sbe->dobj.list, &tplg->comp->dobj_list);
 
 
 906
 907	return ret;
 908}
 909
 910static int soc_tplg_dmixer_create(struct soc_tplg *tplg, size_t size)
 
 911{
 912	struct snd_kcontrol_new kc = {0};
 913	struct soc_mixer_control *sm;
 914	int ret;
 915
 916	if (soc_tplg_check_elem_count(tplg,
 917				      sizeof(struct snd_soc_tplg_mixer_control),
 918				      1, size, "mixers"))
 919		return -EINVAL;
 920
 921	ret = soc_tplg_control_dmixer_create(tplg, &kc);
 922	if (ret)
 923		return ret;
 924
 925	/* register dynamic object */
 926	sm = (struct soc_mixer_control *)kc.private_value;
 
 
 
 
 
 
 
 927
 928	INIT_LIST_HEAD(&sm->dobj.list);
 929	sm->dobj.type = SND_SOC_DOBJ_MIXER;
 930	sm->dobj.index = tplg->index;
 931	if (tplg->ops)
 932		sm->dobj.unload = tplg->ops->control_unload;
 933
 934	/* create control directly */
 935	ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol);
 936	if (ret < 0)
 937		return ret;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 938
 939	list_add(&sm->dobj.list, &tplg->comp->dobj_list);
 
 
 
 
 
 
 
 
 
 
 940
 941	return ret;
 
 
 
 
 
 
 942}
 943
 944static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size)
 
 945{
 946	struct snd_kcontrol_new kc = {0};
 
 947	struct soc_enum *se;
 948	int ret;
 949
 950	if (soc_tplg_check_elem_count(tplg,
 951				      sizeof(struct snd_soc_tplg_enum_control),
 952				      1, size, "enums"))
 953		return -EINVAL;
 954
 955	ret = soc_tplg_control_denum_create(tplg, &kc);
 956	if (ret)
 957		return ret;
 958
 959	/* register dynamic object */
 960	se = (struct soc_enum *)kc.private_value;
 961
 962	INIT_LIST_HEAD(&se->dobj.list);
 963	se->dobj.type = SND_SOC_DOBJ_ENUM;
 964	se->dobj.index = tplg->index;
 965	if (tplg->ops)
 966		se->dobj.unload = tplg->ops->control_unload;
 967
 968	/* create control directly */
 969	ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol);
 970	if (ret < 0)
 971		return ret;
 972
 973	list_add(&se->dobj.list, &tplg->comp->dobj_list);
 
 
 974
 975	return ret;
 976}
 
 977
 978static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg,
 979	struct snd_soc_tplg_hdr *hdr)
 980{
 981	int ret;
 982	int i;
 983
 984	dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count,
 985		soc_tplg_get_offset(tplg));
 
 
 986
 987	for (i = 0; i < le32_to_cpu(hdr->count); i++) {
 988		struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
 
 
 989
 990		if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) {
 991			dev_err(tplg->dev, "ASoC: invalid control size\n");
 992			return -EINVAL;
 993		}
 994
 995		switch (le32_to_cpu(control_hdr->ops.info)) {
 996		case SND_SOC_TPLG_CTL_VOLSW:
 997		case SND_SOC_TPLG_CTL_STROBE:
 998		case SND_SOC_TPLG_CTL_VOLSW_SX:
 999		case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1000		case SND_SOC_TPLG_CTL_RANGE:
1001		case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1002		case SND_SOC_TPLG_DAPM_CTL_PIN:
1003			ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size));
1004			break;
1005		case SND_SOC_TPLG_CTL_ENUM:
1006		case SND_SOC_TPLG_CTL_ENUM_VALUE:
1007		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1008		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1009		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1010			ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size));
1011			break;
1012		case SND_SOC_TPLG_CTL_BYTES:
1013			ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size));
1014			break;
1015		default:
1016			soc_bind_err(tplg, control_hdr, i);
1017			return -EINVAL;
1018		}
1019		if (ret < 0) {
1020			dev_err(tplg->dev, "ASoC: invalid control\n");
1021			return ret;
 
 
 
 
 
 
1022		}
 
 
 
 
 
 
1023
 
 
 
 
 
1024	}
1025
1026	return 0;
1027}
 
 
 
 
 
 
1028
1029/* optionally pass new dynamic kcontrol to component driver. */
1030static int soc_tplg_add_route(struct soc_tplg *tplg,
1031	struct snd_soc_dapm_route *route)
1032{
1033	if (tplg->ops && tplg->ops->dapm_route_load)
1034		return tplg->ops->dapm_route_load(tplg->comp, tplg->index,
1035			route);
1036
1037	return 0;
1038}
 
 
 
1039
1040static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
1041	struct snd_soc_tplg_hdr *hdr)
1042{
1043	struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1044	const size_t maxlen = SNDRV_CTL_ELEM_ID_NAME_MAXLEN;
1045	struct snd_soc_tplg_dapm_graph_elem *elem;
1046	struct snd_soc_dapm_route *route;
1047	int count, i;
1048	int ret = 0;
1049
1050	count = le32_to_cpu(hdr->count);
 
1051
1052	if (soc_tplg_check_elem_count(tplg,
1053				      sizeof(struct snd_soc_tplg_dapm_graph_elem),
1054				      count, le32_to_cpu(hdr->payload_size), "graph"))
1055		return -EINVAL;
 
 
 
1056
1057	dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count,
1058		hdr->index);
 
1059
1060	for (i = 0; i < count; i++) {
1061		route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL);
1062		if (!route)
1063			return -ENOMEM;
1064		elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos;
1065		tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem);
1066
1067		/* validate routes */
1068		if ((strnlen(elem->source, maxlen) == maxlen) ||
1069		    (strnlen(elem->sink, maxlen) == maxlen) ||
1070		    (strnlen(elem->control, maxlen) == maxlen)) {
1071			ret = -EINVAL;
1072			break;
1073		}
1074
1075		route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL);
1076		route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL);
1077		if (!route->source || !route->sink) {
1078			ret = -ENOMEM;
1079			break;
1080		}
1081
1082		if (strnlen(elem->control, maxlen) != 0) {
1083			route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL);
1084			if (!route->control) {
1085				ret = -ENOMEM;
1086				break;
1087			}
1088		}
1089
1090		/* add route dobj to dobj_list */
1091		route->dobj.type = SND_SOC_DOBJ_GRAPH;
1092		if (tplg->ops)
1093			route->dobj.unload = tplg->ops->dapm_route_unload;
1094		route->dobj.index = tplg->index;
1095		list_add(&route->dobj.list, &tplg->comp->dobj_list);
1096
1097		ret = soc_tplg_add_route(tplg, route);
1098		if (ret < 0) {
1099			dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret);
1100			break;
 
 
 
 
 
 
 
 
 
 
1101		}
1102
1103		ret = snd_soc_dapm_add_routes(dapm, route, 1);
1104		if (ret) {
1105			if (!dapm->card->disable_route_checks) {
1106				dev_err(tplg->dev, "ASoC: dapm_add_routes failed: %d\n", ret);
1107				break;
1108			}
1109			dev_info(tplg->dev,
1110				 "ASoC: disable_route_checks set, ignoring dapm_add_routes errors\n");
1111		}
1112	}
1113
1114	return ret;
 
 
 
 
 
 
 
1115}
1116
1117static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
1118	struct snd_soc_tplg_dapm_widget *w)
1119{
1120	struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
1121	struct snd_soc_dapm_widget template, *widget;
1122	struct snd_soc_tplg_ctl_hdr *control_hdr;
1123	struct snd_soc_card *card = tplg->comp->card;
1124	unsigned int *kcontrol_type = NULL;
1125	struct snd_kcontrol_new *kc;
1126	int mixer_count = 0;
1127	int bytes_count = 0;
1128	int enum_count = 0;
1129	int ret = 0;
1130	int i;
1131
1132	if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1133		SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1134		return -EINVAL;
1135	if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
1136		SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1137		return -EINVAL;
1138
1139	dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n",
1140		w->name, w->id);
1141
1142	memset(&template, 0, sizeof(template));
1143
1144	/* map user to kernel widget ID */
1145	template.id = get_widget_id(le32_to_cpu(w->id));
1146	if ((int)template.id < 0)
1147		return template.id;
1148
1149	/* strings are allocated here, but used and freed by the widget */
1150	template.name = kstrdup(w->name, GFP_KERNEL);
1151	if (!template.name)
1152		return -ENOMEM;
1153	template.sname = kstrdup(w->sname, GFP_KERNEL);
1154	if (!template.sname) {
1155		ret = -ENOMEM;
1156		goto err;
1157	}
1158	template.reg = le32_to_cpu(w->reg);
1159	template.shift = le32_to_cpu(w->shift);
1160	template.mask = le32_to_cpu(w->mask);
1161	template.subseq = le32_to_cpu(w->subseq);
1162	template.on_val = w->invert ? 0 : 1;
1163	template.off_val = w->invert ? 1 : 0;
1164	template.ignore_suspend = le32_to_cpu(w->ignore_suspend);
1165	template.event_flags = le16_to_cpu(w->event_flags);
1166	template.dobj.index = tplg->index;
1167
1168	tplg->pos +=
1169		(sizeof(struct snd_soc_tplg_dapm_widget) +
1170		 le32_to_cpu(w->priv.size));
1171
1172	if (w->num_kcontrols == 0) {
1173		template.num_kcontrols = 0;
1174		goto widget;
1175	}
1176
1177	template.num_kcontrols = le32_to_cpu(w->num_kcontrols);
1178	kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL);
1179	if (!kc) {
1180		ret = -ENOMEM;
1181		goto hdr_err;
1182	}
1183
1184	kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int),
1185				     GFP_KERNEL);
1186	if (!kcontrol_type) {
1187		ret = -ENOMEM;
1188		goto hdr_err;
1189	}
1190
1191	for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) {
1192		control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos;
1193		switch (le32_to_cpu(control_hdr->ops.info)) {
1194		case SND_SOC_TPLG_CTL_VOLSW:
1195		case SND_SOC_TPLG_CTL_STROBE:
1196		case SND_SOC_TPLG_CTL_VOLSW_SX:
1197		case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
1198		case SND_SOC_TPLG_CTL_RANGE:
1199		case SND_SOC_TPLG_DAPM_CTL_VOLSW:
1200			/* volume mixer */
1201			kc[i].index = mixer_count;
1202			kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER;
1203			mixer_count++;
1204			ret = soc_tplg_control_dmixer_create(tplg, &kc[i]);
1205			if (ret < 0)
1206				goto hdr_err;
1207			break;
1208		case SND_SOC_TPLG_CTL_ENUM:
1209		case SND_SOC_TPLG_CTL_ENUM_VALUE:
1210		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
1211		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
1212		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
1213			/* enumerated mixer */
1214			kc[i].index = enum_count;
1215			kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM;
1216			enum_count++;
1217			ret = soc_tplg_control_denum_create(tplg, &kc[i]);
1218			if (ret < 0)
1219				goto hdr_err;
1220			break;
1221		case SND_SOC_TPLG_CTL_BYTES:
1222			/* bytes control */
1223			kc[i].index = bytes_count;
1224			kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES;
1225			bytes_count++;
1226			ret = soc_tplg_control_dbytes_create(tplg, &kc[i]);
1227			if (ret < 0)
1228				goto hdr_err;
1229			break;
1230		default:
1231			dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n",
1232				control_hdr->ops.get, control_hdr->ops.put,
1233				le32_to_cpu(control_hdr->ops.info));
1234			ret = -EINVAL;
1235			goto hdr_err;
1236		}
 
 
 
 
 
 
 
1237	}
1238
1239	template.kcontrol_news = kc;
1240	dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n",
1241		w->name, mixer_count, enum_count, bytes_count);
1242
1243widget:
1244	ret = soc_tplg_widget_load(tplg, &template, w);
1245	if (ret < 0)
1246		goto hdr_err;
1247
1248	/* card dapm mutex is held by the core if we are loading topology
1249	 * data during sound card init. */
1250	if (snd_soc_card_is_instantiated(card))
1251		widget = snd_soc_dapm_new_control(dapm, &template);
1252	else
1253		widget = snd_soc_dapm_new_control_unlocked(dapm, &template);
1254	if (IS_ERR(widget)) {
1255		ret = PTR_ERR(widget);
 
1256		goto hdr_err;
1257	}
1258
1259	widget->dobj.type = SND_SOC_DOBJ_WIDGET;
1260	widget->dobj.widget.kcontrol_type = kcontrol_type;
1261	if (tplg->ops)
1262		widget->dobj.unload = tplg->ops->widget_unload;
1263	widget->dobj.index = tplg->index;
1264	list_add(&widget->dobj.list, &tplg->comp->dobj_list);
1265
1266	ret = soc_tplg_widget_ready(tplg, widget, w);
1267	if (ret < 0)
1268		goto ready_err;
1269
1270	kfree(template.sname);
1271	kfree(template.name);
1272
1273	return 0;
1274
1275ready_err:
1276	soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET);
1277	snd_soc_dapm_free_widget(widget);
1278hdr_err:
1279	kfree(template.sname);
1280err:
1281	kfree(template.name);
1282	return ret;
1283}
1284
1285static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg,
1286	struct snd_soc_tplg_hdr *hdr)
1287{
1288	int count, i;
 
1289
1290	count = le32_to_cpu(hdr->count);
 
1291
1292	dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count);
1293
1294	for (i = 0; i < count; i++) {
1295		struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos;
1296		int ret;
1297
1298		/*
1299		 * check if widget itself fits within topology file
1300		 * use sizeof instead of widget->size, as we can't be sure
1301		 * it is set properly yet (file may end before it is present)
1302		 */
1303		if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) {
1304			dev_err(tplg->dev, "ASoC: invalid widget data size\n");
1305			return -EINVAL;
1306		}
1307
1308		/* check if widget has proper size */
1309		if (le32_to_cpu(widget->size) != sizeof(*widget)) {
1310			dev_err(tplg->dev, "ASoC: invalid widget size\n");
1311			return -EINVAL;
1312		}
1313
1314		/* check if widget private data fits within topology file */
1315		if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) {
1316			dev_err(tplg->dev, "ASoC: invalid widget private data size\n");
1317			return -EINVAL;
1318		}
1319
1320		ret = soc_tplg_dapm_widget_create(tplg, widget);
1321		if (ret < 0) {
1322			dev_err(tplg->dev, "ASoC: failed to load widget %s\n",
1323				widget->name);
1324			return ret;
1325		}
1326	}
1327
1328	return 0;
1329}
1330
1331static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
1332{
1333	struct snd_soc_card *card = tplg->comp->card;
1334	int ret;
1335
1336	/* Card might not have been registered at this point.
1337	 * If so, just return success.
1338	*/
1339	if (!snd_soc_card_is_instantiated(card)) {
1340		dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n");
 
1341		return 0;
1342	}
1343
1344	ret = snd_soc_dapm_new_widgets(card);
1345	if (ret < 0)
1346		dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret);
1347
1348	return ret;
1349}
1350
1351static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
1352			   struct snd_soc_tplg_stream_caps *caps)
1353{
1354	stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
1355	if (!stream->stream_name)
1356		return -ENOMEM;
1357
1358	stream->channels_min = le32_to_cpu(caps->channels_min);
1359	stream->channels_max = le32_to_cpu(caps->channels_max);
1360	stream->rates = le32_to_cpu(caps->rates);
1361	stream->rate_min = le32_to_cpu(caps->rate_min);
1362	stream->rate_max = le32_to_cpu(caps->rate_max);
1363	stream->formats = le64_to_cpu(caps->formats);
1364	stream->sig_bits = le32_to_cpu(caps->sig_bits);
1365
1366	return 0;
1367}
1368
1369static void set_dai_flags(struct snd_soc_dai_driver *dai_drv,
1370			  unsigned int flag_mask, unsigned int flags)
1371{
1372	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES)
1373		dai_drv->symmetric_rate =
1374			(flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1375
1376	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS)
1377		dai_drv->symmetric_channels =
1378			(flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ?
1379			1 : 0;
1380
1381	if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS)
1382		dai_drv->symmetric_sample_bits =
1383			(flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1384			1 : 0;
1385}
1386
1387static const struct snd_soc_dai_ops tplg_dai_ops = {
1388	.compress_new	= snd_soc_new_compress,
1389};
1390
1391static int soc_tplg_dai_create(struct soc_tplg *tplg,
1392	struct snd_soc_tplg_pcm *pcm)
1393{
1394	struct snd_soc_dai_driver *dai_drv;
1395	struct snd_soc_pcm_stream *stream;
1396	struct snd_soc_tplg_stream_caps *caps;
1397	struct snd_soc_dai *dai;
1398	struct snd_soc_dapm_context *dapm =
1399		snd_soc_component_get_dapm(tplg->comp);
1400	int ret;
1401
1402	dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
1403	if (dai_drv == NULL)
1404		return -ENOMEM;
1405
1406	if (strlen(pcm->dai_name)) {
1407		dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1408		if (!dai_drv->name) {
1409			ret = -ENOMEM;
1410			goto err;
1411		}
1412	}
1413	dai_drv->id = le32_to_cpu(pcm->dai_id);
1414
1415	if (pcm->playback) {
1416		stream = &dai_drv->playback;
1417		caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1418		ret = set_stream_info(tplg, stream, caps);
1419		if (ret < 0)
1420			goto err;
1421	}
1422
1423	if (pcm->capture) {
1424		stream = &dai_drv->capture;
1425		caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1426		ret = set_stream_info(tplg, stream, caps);
1427		if (ret < 0)
1428			goto err;
1429	}
1430
1431	if (pcm->compress)
1432		dai_drv->ops = &tplg_dai_ops;
1433
1434	/* pass control to component driver for optional further init */
1435	ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
1436	if (ret < 0) {
1437		dev_err(tplg->dev, "ASoC: DAI loading failed\n");
1438		goto err;
 
1439	}
1440
1441	dai_drv->dobj.index = tplg->index;
 
1442	dai_drv->dobj.type = SND_SOC_DOBJ_PCM;
1443	if (tplg->ops)
1444		dai_drv->dobj.unload = tplg->ops->dai_unload;
1445	list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
1446
1447	/* register the DAI to the component */
1448	dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
1449	if (!dai)
1450		return -ENOMEM;
1451
1452	/* Create the DAI widgets here */
1453	ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
1454	if (ret != 0) {
1455		dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
1456		snd_soc_unregister_dai(dai);
1457		return ret;
1458	}
1459
1460	return 0;
1461
1462err:
1463	return ret;
1464}
1465
1466static void set_link_flags(struct snd_soc_dai_link *link,
1467		unsigned int flag_mask, unsigned int flags)
1468{
1469	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES)
1470		link->symmetric_rate =
1471			(flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0;
1472
1473	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS)
1474		link->symmetric_channels =
1475			(flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ?
1476			1 : 0;
1477
1478	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS)
1479		link->symmetric_sample_bits =
1480			(flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ?
1481			1 : 0;
1482
1483	if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP)
1484		link->ignore_suspend =
1485			(flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ?
1486			1 : 0;
1487}
1488
1489/* create the FE DAI link */
1490static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
1491	struct snd_soc_tplg_pcm *pcm)
1492{
1493	struct snd_soc_dai_link *link;
1494	struct snd_soc_dai_link_component *dlc;
1495	int ret;
1496
1497	/* link + cpu + codec + platform */
1498	link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
1499	if (link == NULL)
1500		return -ENOMEM;
1501
1502	dlc = (struct snd_soc_dai_link_component *)(link + 1);
1503
1504	link->cpus	= &dlc[0];
1505	link->num_cpus	 = 1;
1506
1507	link->dobj.index = tplg->index;
1508	link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
1509	if (tplg->ops)
1510		link->dobj.unload = tplg->ops->link_unload;
1511
1512	if (strlen(pcm->pcm_name)) {
1513		link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1514		link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
1515		if (!link->name || !link->stream_name) {
1516			ret = -ENOMEM;
1517			goto err;
1518		}
1519	}
1520	link->id = le32_to_cpu(pcm->pcm_id);
1521
1522	if (strlen(pcm->dai_name)) {
1523		link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
1524		if (!link->cpus->dai_name) {
1525			ret = -ENOMEM;
1526			goto err;
1527		}
1528	}
1529
1530	/*
1531	 * Many topology are assuming link has Codec / Platform, and
1532	 * these might be overwritten at soc_tplg_dai_link_load().
1533	 * Don't use &snd_soc_dummy_dlc here.
1534	 */
1535	link->codecs		= &dlc[1];	/* Don't use &snd_soc_dummy_dlc here */
1536	link->codecs->name	= "snd-soc-dummy";
1537	link->codecs->dai_name	= "snd-soc-dummy-dai";
1538	link->num_codecs	= 1;
1539
1540	link->platforms		= &dlc[2];	/* Don't use &snd_soc_dummy_dlc here */
1541	link->platforms->name	= "snd-soc-dummy";
1542	link->num_platforms	= 1;
1543
1544	/* enable DPCM */
1545	link->dynamic = 1;
1546	link->ignore_pmdown_time = 1;
1547	link->playback_only =  le32_to_cpu(pcm->playback) && !le32_to_cpu(pcm->capture);
1548	link->capture_only  = !le32_to_cpu(pcm->playback) &&  le32_to_cpu(pcm->capture);
1549	if (pcm->flag_mask)
1550		set_link_flags(link,
1551			       le32_to_cpu(pcm->flag_mask),
1552			       le32_to_cpu(pcm->flags));
1553
1554	/* pass control to component driver for optional further init */
1555	ret = soc_tplg_dai_link_load(tplg, link, NULL);
1556	if (ret < 0) {
1557		dev_err(tplg->dev, "ASoC: FE link loading failed\n");
1558		goto err;
1559	}
1560
1561	ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1);
1562	if (ret < 0) {
1563		if (ret != -EPROBE_DEFER)
1564			dev_err(tplg->dev, "ASoC: adding FE link failed\n");
1565		goto err;
1566	}
1567
 
 
 
1568	list_add(&link->dobj.list, &tplg->comp->dobj_list);
1569
 
1570	return 0;
1571err:
1572	return ret;
1573}
1574
1575/* create a FE DAI and DAI link from the PCM object */
1576static int soc_tplg_pcm_create(struct soc_tplg *tplg,
1577	struct snd_soc_tplg_pcm *pcm)
1578{
1579	int ret;
1580
1581	ret = soc_tplg_dai_create(tplg, pcm);
1582	if (ret < 0)
1583		return ret;
1584
1585	return  soc_tplg_fe_link_create(tplg, pcm);
1586}
1587
1588static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg,
1589	struct snd_soc_tplg_hdr *hdr)
1590{
1591	struct snd_soc_tplg_pcm *pcm;
1592	int count;
1593	int size;
1594	int i;
1595	int ret;
1596
1597	count = le32_to_cpu(hdr->count);
 
1598
1599	/* check the element size and count */
1600	pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1601	size = le32_to_cpu(pcm->size);
1602	if (size > sizeof(struct snd_soc_tplg_pcm)) {
1603		dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n",
1604			size);
1605		return -EINVAL;
1606	}
1607
1608	if (soc_tplg_check_elem_count(tplg,
1609				      size, count,
1610				      le32_to_cpu(hdr->payload_size),
1611				      "PCM DAI"))
 
1612		return -EINVAL;
1613
1614	for (i = 0; i < count; i++) {
1615		pcm = (struct snd_soc_tplg_pcm *)tplg->pos;
1616		size = le32_to_cpu(pcm->size);
1617
1618		/* check ABI version by size, create a new version of pcm
1619		 * if abi not match.
1620		 */
1621		if (size != sizeof(*pcm))
1622			return -EINVAL;
1623
1624		/* create the FE DAIs and DAI links */
1625		ret = soc_tplg_pcm_create(tplg, pcm);
1626		if (ret < 0)
1627			return ret;
1628
1629		/* offset by version-specific struct size and
1630		 * real priv data size
1631		 */
1632		tplg->pos += size + le32_to_cpu(pcm->priv.size);
1633	}
1634
1635	dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count);
1636
1637	return 0;
1638}
1639
1640/**
1641 * set_link_hw_format - Set the HW audio format of the physical DAI link.
1642 * @link: &snd_soc_dai_link which should be updated
1643 * @cfg: physical link configs.
1644 *
1645 * Topology context contains a list of supported HW formats (configs) and
1646 * a default format ID for the physical link. This function will use this
1647 * default ID to choose the HW format to set the link's DAI format for init.
1648 */
1649static void set_link_hw_format(struct snd_soc_dai_link *link,
1650			struct snd_soc_tplg_link_config *cfg)
1651{
1652	struct snd_soc_tplg_hw_config *hw_config;
1653	unsigned char bclk_provider, fsync_provider;
1654	unsigned char invert_bclk, invert_fsync;
1655	int i;
1656
1657	for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) {
1658		hw_config = &cfg->hw_config[i];
1659		if (hw_config->id != cfg->default_hw_config_id)
1660			continue;
1661
1662		link->dai_fmt = le32_to_cpu(hw_config->fmt) &
1663			SND_SOC_DAIFMT_FORMAT_MASK;
1664
1665		/* clock gating */
1666		switch (hw_config->clock_gated) {
1667		case SND_SOC_TPLG_DAI_CLK_GATE_GATED:
1668			link->dai_fmt |= SND_SOC_DAIFMT_GATED;
1669			break;
1670
1671		case SND_SOC_TPLG_DAI_CLK_GATE_CONT:
1672			link->dai_fmt |= SND_SOC_DAIFMT_CONT;
1673			break;
1674
1675		default:
1676			/* ignore the value */
1677			break;
1678		}
1679
1680		/* clock signal polarity */
1681		invert_bclk = hw_config->invert_bclk;
1682		invert_fsync = hw_config->invert_fsync;
1683		if (!invert_bclk && !invert_fsync)
1684			link->dai_fmt |= SND_SOC_DAIFMT_NB_NF;
1685		else if (!invert_bclk && invert_fsync)
1686			link->dai_fmt |= SND_SOC_DAIFMT_NB_IF;
1687		else if (invert_bclk && !invert_fsync)
1688			link->dai_fmt |= SND_SOC_DAIFMT_IB_NF;
1689		else
1690			link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
1691
1692		/* clock masters */
1693		bclk_provider = (hw_config->bclk_provider ==
1694			       SND_SOC_TPLG_BCLK_CP);
1695		fsync_provider = (hw_config->fsync_provider ==
1696				SND_SOC_TPLG_FSYNC_CP);
1697		if (bclk_provider && fsync_provider)
1698			link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
1699		else if (!bclk_provider && fsync_provider)
1700			link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP;
1701		else if (bclk_provider && !fsync_provider)
1702			link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC;
1703		else
1704			link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
1705	}
1706}
1707
1708/**
1709 * snd_soc_find_dai_link - Find a DAI link
1710 *
1711 * @card: soc card
1712 * @id: DAI link ID to match
1713 * @name: DAI link name to match, optional
1714 * @stream_name: DAI link stream name to match, optional
1715 *
1716 * This function will search all existing DAI links of the soc card to
1717 * find the link of the same ID. Since DAI links may not have their
1718 * unique ID, so name and stream name should also match if being
1719 * specified.
1720 *
1721 * Return: pointer of DAI link, or NULL if not found.
1722 */
1723static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
1724						      int id, const char *name,
1725						      const char *stream_name)
1726{
1727	struct snd_soc_pcm_runtime *rtd;
1728
1729	for_each_card_rtds(card, rtd) {
1730		struct snd_soc_dai_link *link = rtd->dai_link;
1731
1732		if (link->id != id)
1733			continue;
1734
1735		if (name && (!link->name || !strstr(link->name, name)))
1736			continue;
1737
1738		if (stream_name && (!link->stream_name ||
1739				    !strstr(link->stream_name, stream_name)))
1740			continue;
1741
1742		return link;
1743	}
1744
1745	return NULL;
1746}
1747
1748/* Find and configure an existing physical DAI link */
1749static int soc_tplg_link_config(struct soc_tplg *tplg,
1750	struct snd_soc_tplg_link_config *cfg)
1751{
1752	struct snd_soc_dai_link *link;
1753	const char *name, *stream_name;
1754	size_t len;
1755	int ret;
1756
1757	len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1758	if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1759		return -EINVAL;
1760	else if (len)
1761		name = cfg->name;
1762	else
1763		name = NULL;
1764
1765	len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN);
1766	if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
1767		return -EINVAL;
1768	else if (len)
1769		stream_name = cfg->stream_name;
1770	else
1771		stream_name = NULL;
1772
1773	link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id),
1774				     name, stream_name);
1775	if (!link) {
1776		dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n",
1777			name, cfg->id);
1778		return -EINVAL;
1779	}
1780
1781	/* hw format */
1782	if (cfg->num_hw_configs)
1783		set_link_hw_format(link, cfg);
1784
1785	/* flags */
1786	if (cfg->flag_mask)
1787		set_link_flags(link,
1788			       le32_to_cpu(cfg->flag_mask),
1789			       le32_to_cpu(cfg->flags));
1790
1791	/* pass control to component driver for optional further init */
1792	ret = soc_tplg_dai_link_load(tplg, link, cfg);
1793	if (ret < 0) {
1794		dev_err(tplg->dev, "ASoC: physical link loading failed\n");
1795		return ret;
1796	}
1797
1798	/* for unloading it in snd_soc_tplg_component_remove */
1799	link->dobj.index = tplg->index;
1800	link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK;
1801	if (tplg->ops)
1802		link->dobj.unload = tplg->ops->link_unload;
1803	list_add(&link->dobj.list, &tplg->comp->dobj_list);
1804
1805	return 0;
1806}
1807
1808
1809/* Load physical link config elements from the topology context */
1810static int soc_tplg_link_elems_load(struct soc_tplg *tplg,
1811	struct snd_soc_tplg_hdr *hdr)
1812{
1813	struct snd_soc_tplg_link_config *link;
1814	int count;
1815	int size;
1816	int i, ret;
1817
1818	count = le32_to_cpu(hdr->count);
1819
1820	/* check the element size and count */
1821	link = (struct snd_soc_tplg_link_config *)tplg->pos;
1822	size = le32_to_cpu(link->size);
1823	if (size > sizeof(struct snd_soc_tplg_link_config)) {
1824		dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n",
1825			size);
1826		return -EINVAL;
1827	}
1828
1829	if (soc_tplg_check_elem_count(tplg, size, count,
1830				      le32_to_cpu(hdr->payload_size),
1831				      "physical link config"))
1832		return -EINVAL;
1833
1834	/* config physical DAI links */
1835	for (i = 0; i < count; i++) {
1836		link = (struct snd_soc_tplg_link_config *)tplg->pos;
1837		size = le32_to_cpu(link->size);
1838		if (size != sizeof(*link))
1839			return -EINVAL;
1840
1841		ret = soc_tplg_link_config(tplg, link);
1842		if (ret < 0)
1843			return ret;
1844
1845		/* offset by version-specific struct size and
1846		 * real priv data size
1847		 */
1848		tplg->pos += size + le32_to_cpu(link->priv.size);
1849	}
1850
1851	return 0;
1852}
1853
1854/**
1855 * soc_tplg_dai_config - Find and configure an existing physical DAI.
1856 * @tplg: topology context
1857 * @d: physical DAI configs.
1858 *
1859 * The physical dai should already be registered by the platform driver.
1860 * The platform driver should specify the DAI name and ID for matching.
1861 */
1862static int soc_tplg_dai_config(struct soc_tplg *tplg,
1863			       struct snd_soc_tplg_dai *d)
1864{
1865	struct snd_soc_dai_link_component dai_component;
1866	struct snd_soc_dai *dai;
1867	struct snd_soc_dai_driver *dai_drv;
1868	struct snd_soc_pcm_stream *stream;
1869	struct snd_soc_tplg_stream_caps *caps;
1870	int ret;
1871
1872	memset(&dai_component, 0, sizeof(dai_component));
1873
1874	dai_component.dai_name = d->dai_name;
1875	dai = snd_soc_find_dai(&dai_component);
1876	if (!dai) {
1877		dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n",
1878			d->dai_name);
1879		return -EINVAL;
1880	}
1881
1882	if (le32_to_cpu(d->dai_id) != dai->id) {
1883		dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n",
1884			d->dai_name);
1885		return -EINVAL;
1886	}
1887
1888	dai_drv = dai->driver;
1889	if (!dai_drv)
1890		return -EINVAL;
1891
1892	if (d->playback) {
1893		stream = &dai_drv->playback;
1894		caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
1895		ret = set_stream_info(tplg, stream, caps);
1896		if (ret < 0)
1897			return ret;
1898	}
1899
1900	if (d->capture) {
1901		stream = &dai_drv->capture;
1902		caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
1903		ret = set_stream_info(tplg, stream, caps);
1904		if (ret < 0)
1905			return ret;
1906	}
1907
1908	if (d->flag_mask)
1909		set_dai_flags(dai_drv,
1910			      le32_to_cpu(d->flag_mask),
1911			      le32_to_cpu(d->flags));
1912
1913	/* pass control to component driver for optional further init */
1914	ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
1915	if (ret < 0) {
1916		dev_err(tplg->dev, "ASoC: DAI loading failed\n");
1917		return ret;
1918	}
1919
1920	return 0;
1921}
1922
1923/* load physical DAI elements */
1924static int soc_tplg_dai_elems_load(struct soc_tplg *tplg,
1925				   struct snd_soc_tplg_hdr *hdr)
1926{
1927	int count;
1928	int i;
1929
1930	count = le32_to_cpu(hdr->count);
1931
1932	/* config the existing BE DAIs */
1933	for (i = 0; i < count; i++) {
1934		struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos;
1935		int ret;
1936
1937		if (le32_to_cpu(dai->size) != sizeof(*dai)) {
1938			dev_err(tplg->dev, "ASoC: invalid physical DAI size\n");
1939			return -EINVAL;
1940		}
1941
1942		ret = soc_tplg_dai_config(tplg, dai);
1943		if (ret < 0) {
1944			dev_err(tplg->dev, "ASoC: failed to configure DAI\n");
1945			return ret;
1946		}
1947
1948		tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size));
1949	}
1950
1951	dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count);
1952	return 0;
1953}
1954
1955static int soc_tplg_manifest_load(struct soc_tplg *tplg,
1956				  struct snd_soc_tplg_hdr *hdr)
1957{
1958	struct snd_soc_tplg_manifest *manifest;
1959	int ret = 0;
 
 
1960
1961	manifest = (struct snd_soc_tplg_manifest *)tplg->pos;
 
1962
1963	/* check ABI version by size, create a new manifest if abi not match */
1964	if (le32_to_cpu(manifest->size) != sizeof(*manifest))
1965		return -EINVAL;
1966
1967	/* pass control to component driver for optional further init */
1968	if (tplg->ops && tplg->ops->manifest)
1969		ret = tplg->ops->manifest(tplg->comp, tplg->index, manifest);
1970
1971	return ret;
1972}
1973
1974/* validate header magic, size and type */
1975static int soc_tplg_valid_header(struct soc_tplg *tplg,
1976	struct snd_soc_tplg_hdr *hdr)
1977{
1978	if (le32_to_cpu(hdr->size) != sizeof(*hdr)) {
1979		dev_err(tplg->dev,
1980			"ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n",
1981			le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
1982			tplg->fw->size);
1983		return -EINVAL;
1984	}
1985
1986	if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) {
1987		dev_err(tplg->dev,
1988			"ASoC: invalid header of type %d at offset %ld payload_size %d\n",
1989			le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg),
1990			hdr->payload_size);
1991		return -EINVAL;
1992	}
1993
1994	/* big endian firmware objects not supported atm */
1995	if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) {
1996		dev_err(tplg->dev,
1997			"ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n",
1998			tplg->pass, hdr->magic,
1999			soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2000		return -EINVAL;
2001	}
2002
2003	if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) {
2004		dev_err(tplg->dev,
2005			"ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n",
2006			tplg->pass, hdr->magic,
2007			soc_tplg_get_hdr_offset(tplg), tplg->fw->size);
2008		return -EINVAL;
2009	}
2010
2011	/* Support ABI from version 4 */
2012	if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION ||
2013	    le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) {
2014		dev_err(tplg->dev,
2015			"ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n",
2016			tplg->pass, hdr->abi,
2017			SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg),
2018			tplg->fw->size);
2019		return -EINVAL;
2020	}
2021
2022	if (hdr->payload_size == 0) {
2023		dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n",
2024			soc_tplg_get_hdr_offset(tplg));
2025		return -EINVAL;
2026	}
2027
2028	return 0;
 
 
 
 
 
 
2029}
2030
2031/* check header type and call appropriate handler */
2032static int soc_tplg_load_header(struct soc_tplg *tplg,
2033	struct snd_soc_tplg_hdr *hdr)
2034{
2035	int (*elem_load)(struct soc_tplg *tplg,
2036			 struct snd_soc_tplg_hdr *hdr);
2037	unsigned int hdr_pass;
2038
2039	tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
2040
2041	tplg->index = le32_to_cpu(hdr->index);
 
 
 
 
 
2042
2043	switch (le32_to_cpu(hdr->type)) {
2044	case SND_SOC_TPLG_TYPE_MIXER:
2045	case SND_SOC_TPLG_TYPE_ENUM:
2046	case SND_SOC_TPLG_TYPE_BYTES:
2047		hdr_pass = SOC_TPLG_PASS_CONTROL;
2048		elem_load = soc_tplg_kcontrol_elems_load;
2049		break;
2050	case SND_SOC_TPLG_TYPE_DAPM_GRAPH:
2051		hdr_pass = SOC_TPLG_PASS_GRAPH;
2052		elem_load = soc_tplg_dapm_graph_elems_load;
2053		break;
2054	case SND_SOC_TPLG_TYPE_DAPM_WIDGET:
2055		hdr_pass = SOC_TPLG_PASS_WIDGET;
2056		elem_load = soc_tplg_dapm_widget_elems_load;
2057		break;
2058	case SND_SOC_TPLG_TYPE_PCM:
2059		hdr_pass = SOC_TPLG_PASS_PCM_DAI;
2060		elem_load = soc_tplg_pcm_elems_load;
2061		break;
2062	case SND_SOC_TPLG_TYPE_DAI:
2063		hdr_pass = SOC_TPLG_PASS_BE_DAI;
2064		elem_load = soc_tplg_dai_elems_load;
2065		break;
2066	case SND_SOC_TPLG_TYPE_DAI_LINK:
2067	case SND_SOC_TPLG_TYPE_BACKEND_LINK:
2068		/* physical link configurations */
2069		hdr_pass = SOC_TPLG_PASS_LINK;
2070		elem_load = soc_tplg_link_elems_load;
2071		break;
2072	case SND_SOC_TPLG_TYPE_MANIFEST:
2073		hdr_pass = SOC_TPLG_PASS_MANIFEST;
2074		elem_load = soc_tplg_manifest_load;
2075		break;
2076	default:
2077		/* bespoke vendor data object */
2078		hdr_pass = SOC_TPLG_PASS_VENDOR;
2079		elem_load = soc_tplg_vendor_load;
2080		break;
2081	}
2082
2083	if (tplg->pass == hdr_pass) {
2084		dev_dbg(tplg->dev,
2085			"ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n",
2086			hdr->payload_size, hdr->type, hdr->version,
2087			hdr->vendor_type, tplg->pass);
2088		return elem_load(tplg, hdr);
2089	}
2090
2091	return 0;
2092}
2093
2094/* process the topology file headers */
2095static int soc_tplg_process_headers(struct soc_tplg *tplg)
2096{
 
2097	int ret;
2098
 
 
2099	/* process the header types from start to end */
2100	for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) {
2101		struct snd_soc_tplg_hdr *hdr;
2102
2103		tplg->hdr_pos = tplg->fw->data;
2104		hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2105
2106		while (!soc_tplg_is_eof(tplg)) {
2107
2108			/* make sure header is valid before loading */
2109			ret = soc_tplg_valid_header(tplg, hdr);
2110			if (ret < 0)
2111				return ret;
 
 
2112
2113			/* load the header object */
2114			ret = soc_tplg_load_header(tplg, hdr);
2115			if (ret < 0) {
2116				if (ret != -EPROBE_DEFER) {
2117					dev_err(tplg->dev,
2118						"ASoC: topology: could not load header: %d\n",
2119						ret);
2120				}
2121				return ret;
2122			}
2123
2124			/* goto next header */
2125			tplg->hdr_pos += le32_to_cpu(hdr->payload_size) +
2126				sizeof(struct snd_soc_tplg_hdr);
2127			hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos;
2128		}
2129
 
 
2130	}
2131
2132	/* signal DAPM we are complete */
2133	ret = soc_tplg_dapm_complete(tplg);
 
 
 
2134
2135	return ret;
2136}
2137
2138static int soc_tplg_load(struct soc_tplg *tplg)
2139{
2140	int ret;
2141
2142	ret = soc_tplg_process_headers(tplg);
2143	if (ret == 0)
2144		return soc_tplg_complete(tplg);
2145
2146	return ret;
2147}
2148
2149/* load audio component topology from "firmware" file */
2150int snd_soc_tplg_component_load(struct snd_soc_component *comp,
2151	const struct snd_soc_tplg_ops *ops, const struct firmware *fw)
2152{
2153	struct soc_tplg tplg;
2154	int ret;
2155
2156	/*
2157	 * check if we have sane parameters:
2158	 * comp - needs to exist to keep and reference data while parsing
2159	 * comp->card - used for setting card related parameters
2160	 * comp->card->dev - used for resource management and prints
2161	 * fw - we need it, as it is the very thing we parse
2162	 */
2163	if (!comp || !comp->card || !comp->card->dev || !fw)
2164		return -EINVAL;
2165
2166	/* setup parsing context */
2167	memset(&tplg, 0, sizeof(tplg));
2168	tplg.fw = fw;
2169	tplg.dev = comp->card->dev;
2170	tplg.comp = comp;
2171	if (ops) {
2172		tplg.ops = ops;
2173		tplg.io_ops = ops->io_ops;
2174		tplg.io_ops_count = ops->io_ops_count;
2175		tplg.bytes_ext_ops = ops->bytes_ext_ops;
2176		tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count;
2177	}
2178
2179	ret = soc_tplg_load(&tplg);
2180	/* free the created components if fail to load topology */
2181	if (ret)
2182		snd_soc_tplg_component_remove(comp);
2183
2184	return ret;
2185}
2186EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
2187
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2188/* remove dynamic controls from the component driver */
2189int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
2190{
2191	struct snd_soc_dobj *dobj, *next_dobj;
2192	int pass;
2193
2194	/* process the header types from end to start */
2195	for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) {
2196
2197		/* remove mixer controls */
2198		list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
2199			list) {
2200
 
 
 
 
 
2201			switch (dobj->type) {
2202			case SND_SOC_DOBJ_BYTES:
2203			case SND_SOC_DOBJ_ENUM:
2204			case SND_SOC_DOBJ_MIXER:
2205				soc_tplg_remove_kcontrol(comp, dobj, pass);
2206				break;
2207			case SND_SOC_DOBJ_GRAPH:
2208				soc_tplg_remove_route(comp, dobj, pass);
 
 
 
2209				break;
2210			case SND_SOC_DOBJ_WIDGET:
2211				soc_tplg_remove_widget(comp, dobj, pass);
2212				break;
2213			case SND_SOC_DOBJ_PCM:
2214				soc_tplg_remove_dai(comp, dobj, pass);
2215				break;
2216			case SND_SOC_DOBJ_DAI_LINK:
2217				soc_tplg_remove_link(comp, dobj, pass);
2218				break;
2219			case SND_SOC_DOBJ_BACKEND_LINK:
2220				/*
2221				 * call link_unload ops if extra
2222				 * deinitialization is needed.
2223				 */
2224				remove_backend_link(comp, dobj, pass);
2225				break;
2226			default:
2227				dev_err(comp->dev, "ASoC: invalid component type %d for removal\n",
2228					dobj->type);
2229				break;
2230			}
2231		}
 
2232	}
2233
2234	/* let caller know if FW can be freed when no objects are left */
2235	return !list_empty(&comp->dobj_list);
2236}
2237EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove);