xref: /openbmc/linux/sound/soc/sof/topology.c (revision 74e6a79f)
1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license.  When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
7 //
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 //
10 
11 #include <linux/bits.h>
12 #include <linux/device.h>
13 #include <linux/errno.h>
14 #include <linux/firmware.h>
15 #include <linux/workqueue.h>
16 #include <sound/tlv.h>
17 #include <uapi/sound/sof/tokens.h>
18 #include "sof-priv.h"
19 #include "sof-audio.h"
20 #include "ops.h"
21 
22 #define COMP_ID_UNASSIGNED		0xffffffff
23 /*
24  * Constants used in the computation of linear volume gain
25  * from dB gain 20th root of 10 in Q1.16 fixed-point notation
26  */
27 #define VOL_TWENTIETH_ROOT_OF_TEN	73533
28 /* 40th root of 10 in Q1.16 fixed-point notation*/
29 #define VOL_FORTIETH_ROOT_OF_TEN	69419
30 
31 /* 0.5 dB step value in topology TLV */
32 #define VOL_HALF_DB_STEP	50
33 
34 /* TLV data items */
35 #define TLV_MIN		0
36 #define TLV_STEP	1
37 #define TLV_MUTE	2
38 
39 /**
40  * sof_update_ipc_object - Parse multiple sets of tokens within the token array associated with the
41  *			    token ID.
42  * @scomp: pointer to SOC component
43  * @object: target IPC struct to save the parsed values
44  * @token_id: token ID for the token array to be searched
45  * @tuples: pointer to the tuples array
46  * @num_tuples: number of tuples in the tuples array
47  * @object_size: size of the object
48  * @token_instance_num: number of times the same @token_id needs to be parsed i.e. the function
49  *			looks for @token_instance_num of each token in the token array associated
50  *			with the @token_id
51  */
52 int sof_update_ipc_object(struct snd_soc_component *scomp, void *object, enum sof_tokens token_id,
53 			  struct snd_sof_tuple *tuples, int num_tuples,
54 			  size_t object_size, int token_instance_num)
55 {
56 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
57 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
58 	const struct sof_token_info *token_list;
59 	const struct sof_topology_token *tokens;
60 	int i, j;
61 
62 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
63 	/* nothing to do if token_list is NULL */
64 	if (!token_list)
65 		return 0;
66 
67 	if (token_list[token_id].count < 0) {
68 		dev_err(scomp->dev, "Invalid token count for token ID: %d\n", token_id);
69 		return -EINVAL;
70 	}
71 
72 	/* No tokens to match */
73 	if (!token_list[token_id].count)
74 		return 0;
75 
76 	tokens = token_list[token_id].tokens;
77 	if (!tokens) {
78 		dev_err(scomp->dev, "Invalid tokens for token id: %d\n", token_id);
79 		return -EINVAL;
80 	}
81 
82 	for (i = 0; i < token_list[token_id].count; i++) {
83 		int offset = 0;
84 		int num_tokens_matched = 0;
85 
86 		for (j = 0; j < num_tuples; j++) {
87 			if (tokens[i].token == tuples[j].token) {
88 				switch (tokens[i].type) {
89 				case SND_SOC_TPLG_TUPLE_TYPE_WORD:
90 				{
91 					u32 *val = (u32 *)((u8 *)object + tokens[i].offset +
92 							   offset);
93 
94 					*val = tuples[j].value.v;
95 					break;
96 				}
97 				case SND_SOC_TPLG_TUPLE_TYPE_SHORT:
98 				case SND_SOC_TPLG_TUPLE_TYPE_BOOL:
99 				{
100 					u16 *val = (u16 *)((u8 *)object + tokens[i].offset +
101 							    offset);
102 
103 					*val = (u16)tuples[j].value.v;
104 					break;
105 				}
106 				case SND_SOC_TPLG_TUPLE_TYPE_STRING:
107 				{
108 					if (!tokens[i].get_token) {
109 						dev_err(scomp->dev,
110 							"get_token not defined for token %d in %s\n",
111 							tokens[i].token, token_list[token_id].name);
112 						return -EINVAL;
113 					}
114 
115 					tokens[i].get_token((void *)tuples[j].value.s, object,
116 							    tokens[i].offset + offset);
117 					break;
118 				}
119 				default:
120 					break;
121 				}
122 
123 				num_tokens_matched++;
124 
125 				/* found all required sets of current token. Move to the next one */
126 				if (!(num_tokens_matched % token_instance_num))
127 					break;
128 
129 				/* move to the next object */
130 				offset += object_size;
131 			}
132 		}
133 	}
134 
135 	return 0;
136 }
137 
138 static inline int get_tlv_data(const int *p, int tlv[SOF_TLV_ITEMS])
139 {
140 	/* we only support dB scale TLV type at the moment */
141 	if ((int)p[SNDRV_CTL_TLVO_TYPE] != SNDRV_CTL_TLVT_DB_SCALE)
142 		return -EINVAL;
143 
144 	/* min value in topology tlv data is multiplied by 100 */
145 	tlv[TLV_MIN] = (int)p[SNDRV_CTL_TLVO_DB_SCALE_MIN] / 100;
146 
147 	/* volume steps */
148 	tlv[TLV_STEP] = (int)(p[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] &
149 				TLV_DB_SCALE_MASK);
150 
151 	/* mute ON/OFF */
152 	if ((p[SNDRV_CTL_TLVO_DB_SCALE_MUTE_AND_STEP] &
153 		TLV_DB_SCALE_MUTE) == 0)
154 		tlv[TLV_MUTE] = 0;
155 	else
156 		tlv[TLV_MUTE] = 1;
157 
158 	return 0;
159 }
160 
161 /*
162  * Function to truncate an unsigned 64-bit number
163  * by x bits and return 32-bit unsigned number. This
164  * function also takes care of rounding while truncating
165  */
166 static inline u32 vol_shift_64(u64 i, u32 x)
167 {
168 	/* do not truncate more than 32 bits */
169 	if (x > 32)
170 		x = 32;
171 
172 	if (x == 0)
173 		return (u32)i;
174 
175 	return (u32)(((i >> (x - 1)) + 1) >> 1);
176 }
177 
178 /*
179  * Function to compute a ^ exp where,
180  * a is a fractional number represented by a fixed-point
181  * integer with a fractional world length of "fwl"
182  * exp is an integer
183  * fwl is the fractional word length
184  * Return value is a fractional number represented by a
185  * fixed-point integer with a fractional word length of "fwl"
186  */
187 static u32 vol_pow32(u32 a, int exp, u32 fwl)
188 {
189 	int i, iter;
190 	u32 power = 1 << fwl;
191 	u64 numerator;
192 
193 	/* if exponent is 0, return 1 */
194 	if (exp == 0)
195 		return power;
196 
197 	/* determine the number of iterations based on the exponent */
198 	if (exp < 0)
199 		iter = exp * -1;
200 	else
201 		iter = exp;
202 
203 	/* mutiply a "iter" times to compute power */
204 	for (i = 0; i < iter; i++) {
205 		/*
206 		 * Product of 2 Qx.fwl fixed-point numbers yields a Q2*x.2*fwl
207 		 * Truncate product back to fwl fractional bits with rounding
208 		 */
209 		power = vol_shift_64((u64)power * a, fwl);
210 	}
211 
212 	if (exp > 0) {
213 		/* if exp is positive, return the result */
214 		return power;
215 	}
216 
217 	/* if exp is negative, return the multiplicative inverse */
218 	numerator = (u64)1 << (fwl << 1);
219 	do_div(numerator, power);
220 
221 	return (u32)numerator;
222 }
223 
224 /*
225  * Function to calculate volume gain from TLV data.
226  * This function can only handle gain steps that are multiples of 0.5 dB
227  */
228 u32 vol_compute_gain(u32 value, int *tlv)
229 {
230 	int dB_gain;
231 	u32 linear_gain;
232 	int f_step;
233 
234 	/* mute volume */
235 	if (value == 0 && tlv[TLV_MUTE])
236 		return 0;
237 
238 	/*
239 	 * compute dB gain from tlv. tlv_step
240 	 * in topology is multiplied by 100
241 	 */
242 	dB_gain = tlv[TLV_MIN] + (value * tlv[TLV_STEP]) / 100;
243 
244 	/*
245 	 * compute linear gain represented by fixed-point
246 	 * int with VOLUME_FWL fractional bits
247 	 */
248 	linear_gain = vol_pow32(VOL_TWENTIETH_ROOT_OF_TEN, dB_gain, VOLUME_FWL);
249 
250 	/* extract the fractional part of volume step */
251 	f_step = tlv[TLV_STEP] - (tlv[TLV_STEP] / 100);
252 
253 	/* if volume step is an odd multiple of 0.5 dB */
254 	if (f_step == VOL_HALF_DB_STEP && (value & 1))
255 		linear_gain = vol_shift_64((u64)linear_gain *
256 						  VOL_FORTIETH_ROOT_OF_TEN,
257 						  VOLUME_FWL);
258 
259 	return linear_gain;
260 }
261 
262 /*
263  * Set up volume table for kcontrols from tlv data
264  * "size" specifies the number of entries in the table
265  */
266 static int set_up_volume_table(struct snd_sof_control *scontrol,
267 			       int tlv[SOF_TLV_ITEMS], int size)
268 {
269 	struct snd_soc_component *scomp = scontrol->scomp;
270 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
271 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
272 
273 	if (tplg_ops && tplg_ops->control && tplg_ops->control->set_up_volume_table)
274 		return tplg_ops->control->set_up_volume_table(scontrol, tlv, size);
275 
276 	dev_err(scomp->dev, "Mandatory op %s not set\n", __func__);
277 	return -EINVAL;
278 }
279 
280 struct sof_dai_types {
281 	const char *name;
282 	enum sof_ipc_dai_type type;
283 };
284 
285 static const struct sof_dai_types sof_dais[] = {
286 	{"SSP", SOF_DAI_INTEL_SSP},
287 	{"HDA", SOF_DAI_INTEL_HDA},
288 	{"DMIC", SOF_DAI_INTEL_DMIC},
289 	{"ALH", SOF_DAI_INTEL_ALH},
290 	{"SAI", SOF_DAI_IMX_SAI},
291 	{"ESAI", SOF_DAI_IMX_ESAI},
292 	{"ACP", SOF_DAI_AMD_BT},
293 	{"ACPSP", SOF_DAI_AMD_SP},
294 	{"ACPDMIC", SOF_DAI_AMD_DMIC},
295 	{"ACPHS", SOF_DAI_AMD_HS},
296 	{"AFE", SOF_DAI_MEDIATEK_AFE},
297 	{"ACPSP_VIRTUAL", SOF_DAI_AMD_SP_VIRTUAL},
298 	{"ACPHS_VIRTUAL", SOF_DAI_AMD_HS_VIRTUAL},
299 
300 };
301 
302 static enum sof_ipc_dai_type find_dai(const char *name)
303 {
304 	int i;
305 
306 	for (i = 0; i < ARRAY_SIZE(sof_dais); i++) {
307 		if (strcmp(name, sof_dais[i].name) == 0)
308 			return sof_dais[i].type;
309 	}
310 
311 	return SOF_DAI_INTEL_NONE;
312 }
313 
314 /*
315  * Supported Frame format types and lookup, add new ones to end of list.
316  */
317 
318 struct sof_frame_types {
319 	const char *name;
320 	enum sof_ipc_frame frame;
321 };
322 
323 static const struct sof_frame_types sof_frames[] = {
324 	{"s16le", SOF_IPC_FRAME_S16_LE},
325 	{"s24le", SOF_IPC_FRAME_S24_4LE},
326 	{"s32le", SOF_IPC_FRAME_S32_LE},
327 	{"float", SOF_IPC_FRAME_FLOAT},
328 };
329 
330 static enum sof_ipc_frame find_format(const char *name)
331 {
332 	int i;
333 
334 	for (i = 0; i < ARRAY_SIZE(sof_frames); i++) {
335 		if (strcmp(name, sof_frames[i].name) == 0)
336 			return sof_frames[i].frame;
337 	}
338 
339 	/* use s32le if nothing is specified */
340 	return SOF_IPC_FRAME_S32_LE;
341 }
342 
343 int get_token_u32(void *elem, void *object, u32 offset)
344 {
345 	struct snd_soc_tplg_vendor_value_elem *velem = elem;
346 	u32 *val = (u32 *)((u8 *)object + offset);
347 
348 	*val = le32_to_cpu(velem->value);
349 	return 0;
350 }
351 
352 int get_token_u16(void *elem, void *object, u32 offset)
353 {
354 	struct snd_soc_tplg_vendor_value_elem *velem = elem;
355 	u16 *val = (u16 *)((u8 *)object + offset);
356 
357 	*val = (u16)le32_to_cpu(velem->value);
358 	return 0;
359 }
360 
361 int get_token_uuid(void *elem, void *object, u32 offset)
362 {
363 	struct snd_soc_tplg_vendor_uuid_elem *velem = elem;
364 	u8 *dst = (u8 *)object + offset;
365 
366 	memcpy(dst, velem->uuid, UUID_SIZE);
367 
368 	return 0;
369 }
370 
371 /*
372  * The string gets from topology will be stored in heap, the owner only
373  * holds a char* member point to the heap.
374  */
375 int get_token_string(void *elem, void *object, u32 offset)
376 {
377 	/* "dst" here points to the char* member of the owner */
378 	char **dst = (char **)((u8 *)object + offset);
379 
380 	*dst = kstrdup(elem, GFP_KERNEL);
381 	if (!*dst)
382 		return -ENOMEM;
383 	return 0;
384 };
385 
386 int get_token_comp_format(void *elem, void *object, u32 offset)
387 {
388 	u32 *val = (u32 *)((u8 *)object + offset);
389 
390 	*val = find_format((const char *)elem);
391 	return 0;
392 }
393 
394 int get_token_dai_type(void *elem, void *object, u32 offset)
395 {
396 	u32 *val = (u32 *)((u8 *)object + offset);
397 
398 	*val = find_dai((const char *)elem);
399 	return 0;
400 }
401 
402 /* PCM */
403 static const struct sof_topology_token stream_tokens[] = {
404 	{SOF_TKN_STREAM_PLAYBACK_COMPATIBLE_D0I3, SND_SOC_TPLG_TUPLE_TYPE_BOOL, get_token_u16,
405 		offsetof(struct snd_sof_pcm, stream[0].d0i3_compatible)},
406 	{SOF_TKN_STREAM_CAPTURE_COMPATIBLE_D0I3, SND_SOC_TPLG_TUPLE_TYPE_BOOL, get_token_u16,
407 		offsetof(struct snd_sof_pcm, stream[1].d0i3_compatible)},
408 };
409 
410 /* Leds */
411 static const struct sof_topology_token led_tokens[] = {
412 	{SOF_TKN_MUTE_LED_USE, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
413 		offsetof(struct snd_sof_led_control, use_led)},
414 	{SOF_TKN_MUTE_LED_DIRECTION, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
415 		offsetof(struct snd_sof_led_control, direction)},
416 };
417 
418 static const struct sof_topology_token comp_pin_tokens[] = {
419 	{SOF_TKN_COMP_NUM_SINK_PINS, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
420 		offsetof(struct snd_sof_widget, num_sink_pins)},
421 	{SOF_TKN_COMP_NUM_SOURCE_PINS, SND_SOC_TPLG_TUPLE_TYPE_WORD, get_token_u32,
422 		offsetof(struct snd_sof_widget, num_source_pins)},
423 };
424 
425 static const struct sof_topology_token comp_sink_pin_binding_tokens[] = {
426 	{SOF_TKN_COMP_SINK_PIN_BINDING_WNAME, SND_SOC_TPLG_TUPLE_TYPE_STRING,
427 		get_token_string, 0},
428 };
429 
430 static const struct sof_topology_token comp_src_pin_binding_tokens[] = {
431 	{SOF_TKN_COMP_SRC_PIN_BINDING_WNAME, SND_SOC_TPLG_TUPLE_TYPE_STRING,
432 		get_token_string, 0},
433 };
434 
435 /**
436  * sof_parse_uuid_tokens - Parse multiple sets of UUID tokens
437  * @scomp: pointer to soc component
438  * @object: target ipc struct for parsed values
439  * @offset: offset within the object pointer
440  * @tokens: array of struct sof_topology_token containing the tokens to be matched
441  * @num_tokens: number of tokens in tokens array
442  * @array: source pointer to consecutive vendor arrays in topology
443  *
444  * This function parses multiple sets of string type tokens in vendor arrays
445  */
446 static int sof_parse_uuid_tokens(struct snd_soc_component *scomp,
447 				  void *object, size_t offset,
448 				  const struct sof_topology_token *tokens, int num_tokens,
449 				  struct snd_soc_tplg_vendor_array *array)
450 {
451 	struct snd_soc_tplg_vendor_uuid_elem *elem;
452 	int found = 0;
453 	int i, j;
454 
455 	/* parse element by element */
456 	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
457 		elem = &array->uuid[i];
458 
459 		/* search for token */
460 		for (j = 0; j < num_tokens; j++) {
461 			/* match token type */
462 			if (tokens[j].type != SND_SOC_TPLG_TUPLE_TYPE_UUID)
463 				continue;
464 
465 			/* match token id */
466 			if (tokens[j].token != le32_to_cpu(elem->token))
467 				continue;
468 
469 			/* matched - now load token */
470 			tokens[j].get_token(elem, object,
471 					    offset + tokens[j].offset);
472 
473 			found++;
474 		}
475 	}
476 
477 	return found;
478 }
479 
480 /**
481  * sof_copy_tuples - Parse tokens and copy them to the @tuples array
482  * @sdev: pointer to struct snd_sof_dev
483  * @array: source pointer to consecutive vendor arrays in topology
484  * @array_size: size of @array
485  * @token_id: Token ID associated with a token array
486  * @token_instance_num: number of times the same @token_id needs to be parsed i.e. the function
487  *			looks for @token_instance_num of each token in the token array associated
488  *			with the @token_id
489  * @tuples: tuples array to copy the matched tuples to
490  * @tuples_size: size of @tuples
491  * @num_copied_tuples: pointer to the number of copied tuples in the tuples array
492  *
493  */
494 static int sof_copy_tuples(struct snd_sof_dev *sdev, struct snd_soc_tplg_vendor_array *array,
495 			   int array_size, u32 token_id, int token_instance_num,
496 			   struct snd_sof_tuple *tuples, int tuples_size, int *num_copied_tuples)
497 {
498 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
499 	const struct sof_token_info *token_list;
500 	const struct sof_topology_token *tokens;
501 	int found = 0;
502 	int num_tokens, asize;
503 	int i, j;
504 
505 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
506 	/* nothing to do if token_list is NULL */
507 	if (!token_list)
508 		return 0;
509 
510 	if (!tuples || !num_copied_tuples) {
511 		dev_err(sdev->dev, "Invalid tuples array\n");
512 		return -EINVAL;
513 	}
514 
515 	tokens = token_list[token_id].tokens;
516 	num_tokens = token_list[token_id].count;
517 
518 	if (!tokens) {
519 		dev_err(sdev->dev, "No token array defined for token ID: %d\n", token_id);
520 		return -EINVAL;
521 	}
522 
523 	/* check if there's space in the tuples array for new tokens */
524 	if (*num_copied_tuples >= tuples_size) {
525 		dev_err(sdev->dev, "No space in tuples array for new tokens from %s",
526 			token_list[token_id].name);
527 		return -EINVAL;
528 	}
529 
530 	while (array_size > 0 && found < num_tokens * token_instance_num) {
531 		asize = le32_to_cpu(array->size);
532 
533 		/* validate asize */
534 		if (asize < 0) {
535 			dev_err(sdev->dev, "Invalid array size 0x%x\n", asize);
536 			return -EINVAL;
537 		}
538 
539 		/* make sure there is enough data before parsing */
540 		array_size -= asize;
541 		if (array_size < 0) {
542 			dev_err(sdev->dev, "Invalid array size 0x%x\n", asize);
543 			return -EINVAL;
544 		}
545 
546 		/* parse element by element */
547 		for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
548 			/* search for token */
549 			for (j = 0; j < num_tokens; j++) {
550 				/* match token type */
551 				if (!(tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_WORD ||
552 				      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_SHORT ||
553 				      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_BYTE ||
554 				      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_BOOL ||
555 				      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_STRING))
556 					continue;
557 
558 				if (tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_STRING) {
559 					struct snd_soc_tplg_vendor_string_elem *elem;
560 
561 					elem = &array->string[i];
562 
563 					/* match token id */
564 					if (tokens[j].token != le32_to_cpu(elem->token))
565 						continue;
566 
567 					tuples[*num_copied_tuples].token = tokens[j].token;
568 					tuples[*num_copied_tuples].value.s = elem->string;
569 				} else {
570 					struct snd_soc_tplg_vendor_value_elem *elem;
571 
572 					elem = &array->value[i];
573 
574 					/* match token id */
575 					if (tokens[j].token != le32_to_cpu(elem->token))
576 						continue;
577 
578 					tuples[*num_copied_tuples].token = tokens[j].token;
579 					tuples[*num_copied_tuples].value.v =
580 						le32_to_cpu(elem->value);
581 				}
582 				found++;
583 				(*num_copied_tuples)++;
584 
585 				/* stop if there's no space for any more new tuples */
586 				if (*num_copied_tuples == tuples_size)
587 					return 0;
588 			}
589 		}
590 
591 		/* next array */
592 		array = (struct snd_soc_tplg_vendor_array *)((u8 *)array + asize);
593 	}
594 
595 	return 0;
596 }
597 
598 /**
599  * sof_parse_string_tokens - Parse multiple sets of tokens
600  * @scomp: pointer to soc component
601  * @object: target ipc struct for parsed values
602  * @offset: offset within the object pointer
603  * @tokens: array of struct sof_topology_token containing the tokens to be matched
604  * @num_tokens: number of tokens in tokens array
605  * @array: source pointer to consecutive vendor arrays in topology
606  *
607  * This function parses multiple sets of string type tokens in vendor arrays
608  */
609 static int sof_parse_string_tokens(struct snd_soc_component *scomp,
610 				   void *object, int offset,
611 				   const struct sof_topology_token *tokens, int num_tokens,
612 				   struct snd_soc_tplg_vendor_array *array)
613 {
614 	struct snd_soc_tplg_vendor_string_elem *elem;
615 	int found = 0;
616 	int i, j, ret;
617 
618 	/* parse element by element */
619 	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
620 		elem = &array->string[i];
621 
622 		/* search for token */
623 		for (j = 0; j < num_tokens; j++) {
624 			/* match token type */
625 			if (tokens[j].type != SND_SOC_TPLG_TUPLE_TYPE_STRING)
626 				continue;
627 
628 			/* match token id */
629 			if (tokens[j].token != le32_to_cpu(elem->token))
630 				continue;
631 
632 			/* matched - now load token */
633 			ret = tokens[j].get_token(elem->string, object, offset + tokens[j].offset);
634 			if (ret < 0)
635 				return ret;
636 
637 			found++;
638 		}
639 	}
640 
641 	return found;
642 }
643 
644 /**
645  * sof_parse_word_tokens - Parse multiple sets of tokens
646  * @scomp: pointer to soc component
647  * @object: target ipc struct for parsed values
648  * @offset: offset within the object pointer
649  * @tokens: array of struct sof_topology_token containing the tokens to be matched
650  * @num_tokens: number of tokens in tokens array
651  * @array: source pointer to consecutive vendor arrays in topology
652  *
653  * This function parses multiple sets of word type tokens in vendor arrays
654  */
655 static int sof_parse_word_tokens(struct snd_soc_component *scomp,
656 				  void *object, int offset,
657 				  const struct sof_topology_token *tokens, int num_tokens,
658 				  struct snd_soc_tplg_vendor_array *array)
659 {
660 	struct snd_soc_tplg_vendor_value_elem *elem;
661 	int found = 0;
662 	int i, j;
663 
664 	/* parse element by element */
665 	for (i = 0; i < le32_to_cpu(array->num_elems); i++) {
666 		elem = &array->value[i];
667 
668 		/* search for token */
669 		for (j = 0; j < num_tokens; j++) {
670 			/* match token type */
671 			if (!(tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_WORD ||
672 			      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_SHORT ||
673 			      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_BYTE ||
674 			      tokens[j].type == SND_SOC_TPLG_TUPLE_TYPE_BOOL))
675 				continue;
676 
677 			/* match token id */
678 			if (tokens[j].token != le32_to_cpu(elem->token))
679 				continue;
680 
681 			/* load token */
682 			tokens[j].get_token(elem, object, offset + tokens[j].offset);
683 
684 			found++;
685 		}
686 	}
687 
688 	return found;
689 }
690 
691 /**
692  * sof_parse_token_sets - Parse multiple sets of tokens
693  * @scomp: pointer to soc component
694  * @object: target ipc struct for parsed values
695  * @tokens: token definition array describing what tokens to parse
696  * @count: number of tokens in definition array
697  * @array: source pointer to consecutive vendor arrays in topology
698  * @array_size: total size of @array
699  * @token_instance_num: number of times the same tokens needs to be parsed i.e. the function
700  *			looks for @token_instance_num of each token in the @tokens
701  * @object_size: offset to next target ipc struct with multiple sets
702  *
703  * This function parses multiple sets of tokens in vendor arrays into
704  * consecutive ipc structs.
705  */
706 static int sof_parse_token_sets(struct snd_soc_component *scomp,
707 				void *object, const struct sof_topology_token *tokens,
708 				int count, struct snd_soc_tplg_vendor_array *array,
709 				int array_size, int token_instance_num, size_t object_size)
710 {
711 	size_t offset = 0;
712 	int found = 0;
713 	int total = 0;
714 	int asize;
715 	int ret;
716 
717 	while (array_size > 0 && total < count * token_instance_num) {
718 		asize = le32_to_cpu(array->size);
719 
720 		/* validate asize */
721 		if (asize < 0) { /* FIXME: A zero-size array makes no sense */
722 			dev_err(scomp->dev, "error: invalid array size 0x%x\n",
723 				asize);
724 			return -EINVAL;
725 		}
726 
727 		/* make sure there is enough data before parsing */
728 		array_size -= asize;
729 		if (array_size < 0) {
730 			dev_err(scomp->dev, "error: invalid array size 0x%x\n",
731 				asize);
732 			return -EINVAL;
733 		}
734 
735 		/* call correct parser depending on type */
736 		switch (le32_to_cpu(array->type)) {
737 		case SND_SOC_TPLG_TUPLE_TYPE_UUID:
738 			found += sof_parse_uuid_tokens(scomp, object, offset, tokens, count,
739 						       array);
740 			break;
741 		case SND_SOC_TPLG_TUPLE_TYPE_STRING:
742 
743 			ret = sof_parse_string_tokens(scomp, object, offset, tokens, count,
744 						      array);
745 			if (ret < 0) {
746 				dev_err(scomp->dev, "error: no memory to copy string token\n");
747 				return ret;
748 			}
749 
750 			found += ret;
751 			break;
752 		case SND_SOC_TPLG_TUPLE_TYPE_BOOL:
753 		case SND_SOC_TPLG_TUPLE_TYPE_BYTE:
754 		case SND_SOC_TPLG_TUPLE_TYPE_WORD:
755 		case SND_SOC_TPLG_TUPLE_TYPE_SHORT:
756 			found += sof_parse_word_tokens(scomp, object, offset, tokens, count,
757 						       array);
758 			break;
759 		default:
760 			dev_err(scomp->dev, "error: unknown token type %d\n",
761 				array->type);
762 			return -EINVAL;
763 		}
764 
765 		/* next array */
766 		array = (struct snd_soc_tplg_vendor_array *)((u8 *)array
767 			+ asize);
768 
769 		/* move to next target struct */
770 		if (found >= count) {
771 			offset += object_size;
772 			total += found;
773 			found = 0;
774 		}
775 	}
776 
777 	return 0;
778 }
779 
780 /**
781  * sof_parse_tokens - Parse one set of tokens
782  * @scomp: pointer to soc component
783  * @object: target ipc struct for parsed values
784  * @tokens: token definition array describing what tokens to parse
785  * @num_tokens: number of tokens in definition array
786  * @array: source pointer to consecutive vendor arrays in topology
787  * @array_size: total size of @array
788  *
789  * This function parses a single set of tokens in vendor arrays into
790  * consecutive ipc structs.
791  */
792 static int sof_parse_tokens(struct snd_soc_component *scomp,  void *object,
793 			    const struct sof_topology_token *tokens, int num_tokens,
794 			    struct snd_soc_tplg_vendor_array *array,
795 			    int array_size)
796 
797 {
798 	/*
799 	 * sof_parse_tokens is used when topology contains only a single set of
800 	 * identical tuples arrays. So additional parameters to
801 	 * sof_parse_token_sets are sets = 1 (only 1 set) and
802 	 * object_size = 0 (irrelevant).
803 	 */
804 	return sof_parse_token_sets(scomp, object, tokens, num_tokens, array,
805 				    array_size, 1, 0);
806 }
807 
808 /*
809  * Standard Kcontrols.
810  */
811 
812 static int sof_control_load_volume(struct snd_soc_component *scomp,
813 				   struct snd_sof_control *scontrol,
814 				   struct snd_kcontrol_new *kc,
815 				   struct snd_soc_tplg_ctl_hdr *hdr)
816 {
817 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
818 	struct snd_soc_tplg_mixer_control *mc =
819 		container_of(hdr, struct snd_soc_tplg_mixer_control, hdr);
820 	int tlv[SOF_TLV_ITEMS];
821 	unsigned int mask;
822 	int ret;
823 
824 	/* validate topology data */
825 	if (le32_to_cpu(mc->num_channels) > SND_SOC_TPLG_MAX_CHAN)
826 		return -EINVAL;
827 
828 	/*
829 	 * If control has more than 2 channels we need to override the info. This is because even if
830 	 * ASoC layer has defined topology's max channel count to SND_SOC_TPLG_MAX_CHAN = 8, the
831 	 * pre-defined dapm control types (and related functions) creating the actual control
832 	 * restrict the channels only to mono or stereo.
833 	 */
834 	if (le32_to_cpu(mc->num_channels) > 2)
835 		kc->info = snd_sof_volume_info;
836 
837 	scontrol->comp_id = sdev->next_comp_id;
838 	scontrol->min_volume_step = le32_to_cpu(mc->min);
839 	scontrol->max_volume_step = le32_to_cpu(mc->max);
840 	scontrol->num_channels = le32_to_cpu(mc->num_channels);
841 
842 	scontrol->max = le32_to_cpu(mc->max);
843 	if (le32_to_cpu(mc->max) == 1)
844 		goto skip;
845 
846 	/* extract tlv data */
847 	if (!kc->tlv.p || get_tlv_data(kc->tlv.p, tlv) < 0) {
848 		dev_err(scomp->dev, "error: invalid TLV data\n");
849 		return -EINVAL;
850 	}
851 
852 	/* set up volume table */
853 	ret = set_up_volume_table(scontrol, tlv, le32_to_cpu(mc->max) + 1);
854 	if (ret < 0) {
855 		dev_err(scomp->dev, "error: setting up volume table\n");
856 		return ret;
857 	}
858 
859 skip:
860 	/* set up possible led control from mixer private data */
861 	ret = sof_parse_tokens(scomp, &scontrol->led_ctl, led_tokens,
862 			       ARRAY_SIZE(led_tokens), mc->priv.array,
863 			       le32_to_cpu(mc->priv.size));
864 	if (ret != 0) {
865 		dev_err(scomp->dev, "error: parse led tokens failed %d\n",
866 			le32_to_cpu(mc->priv.size));
867 		goto err;
868 	}
869 
870 	if (scontrol->led_ctl.use_led) {
871 		mask = scontrol->led_ctl.direction ? SNDRV_CTL_ELEM_ACCESS_MIC_LED :
872 							SNDRV_CTL_ELEM_ACCESS_SPK_LED;
873 		scontrol->access &= ~SNDRV_CTL_ELEM_ACCESS_LED_MASK;
874 		scontrol->access |= mask;
875 		kc->access &= ~SNDRV_CTL_ELEM_ACCESS_LED_MASK;
876 		kc->access |= mask;
877 		sdev->led_present = true;
878 	}
879 
880 	dev_dbg(scomp->dev, "tplg: load kcontrol index %d chans %d\n",
881 		scontrol->comp_id, scontrol->num_channels);
882 
883 	return 0;
884 
885 err:
886 	if (le32_to_cpu(mc->max) > 1)
887 		kfree(scontrol->volume_table);
888 
889 	return ret;
890 }
891 
892 static int sof_control_load_enum(struct snd_soc_component *scomp,
893 				 struct snd_sof_control *scontrol,
894 				 struct snd_kcontrol_new *kc,
895 				 struct snd_soc_tplg_ctl_hdr *hdr)
896 {
897 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
898 	struct snd_soc_tplg_enum_control *ec =
899 		container_of(hdr, struct snd_soc_tplg_enum_control, hdr);
900 
901 	/* validate topology data */
902 	if (le32_to_cpu(ec->num_channels) > SND_SOC_TPLG_MAX_CHAN)
903 		return -EINVAL;
904 
905 	scontrol->comp_id = sdev->next_comp_id;
906 	scontrol->num_channels = le32_to_cpu(ec->num_channels);
907 
908 	dev_dbg(scomp->dev, "tplg: load kcontrol index %d chans %d comp_id %d\n",
909 		scontrol->comp_id, scontrol->num_channels, scontrol->comp_id);
910 
911 	return 0;
912 }
913 
914 static int sof_control_load_bytes(struct snd_soc_component *scomp,
915 				  struct snd_sof_control *scontrol,
916 				  struct snd_kcontrol_new *kc,
917 				  struct snd_soc_tplg_ctl_hdr *hdr)
918 {
919 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
920 	struct snd_soc_tplg_bytes_control *control =
921 		container_of(hdr, struct snd_soc_tplg_bytes_control, hdr);
922 	struct soc_bytes_ext *sbe = (struct soc_bytes_ext *)kc->private_value;
923 	size_t priv_size = le32_to_cpu(control->priv.size);
924 
925 	scontrol->max_size = sbe->max;
926 	scontrol->comp_id = sdev->next_comp_id;
927 
928 	dev_dbg(scomp->dev, "tplg: load kcontrol index %d\n", scontrol->comp_id);
929 
930 	/* copy the private data */
931 	if (priv_size > 0) {
932 		scontrol->priv = kmemdup(control->priv.data, priv_size, GFP_KERNEL);
933 		if (!scontrol->priv)
934 			return -ENOMEM;
935 
936 		scontrol->priv_size = priv_size;
937 	}
938 
939 	return 0;
940 }
941 
942 /* external kcontrol init - used for any driver specific init */
943 static int sof_control_load(struct snd_soc_component *scomp, int index,
944 			    struct snd_kcontrol_new *kc,
945 			    struct snd_soc_tplg_ctl_hdr *hdr)
946 {
947 	struct soc_mixer_control *sm;
948 	struct soc_bytes_ext *sbe;
949 	struct soc_enum *se;
950 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
951 	struct snd_soc_dobj *dobj;
952 	struct snd_sof_control *scontrol;
953 	int ret;
954 
955 	dev_dbg(scomp->dev, "tplg: load control type %d name : %s\n",
956 		hdr->type, hdr->name);
957 
958 	scontrol = kzalloc(sizeof(*scontrol), GFP_KERNEL);
959 	if (!scontrol)
960 		return -ENOMEM;
961 
962 	scontrol->name = kstrdup(hdr->name, GFP_KERNEL);
963 	if (!scontrol->name) {
964 		kfree(scontrol);
965 		return -ENOMEM;
966 	}
967 
968 	scontrol->scomp = scomp;
969 	scontrol->access = kc->access;
970 	scontrol->info_type = le32_to_cpu(hdr->ops.info);
971 	scontrol->index = kc->index;
972 
973 	switch (le32_to_cpu(hdr->ops.info)) {
974 	case SND_SOC_TPLG_CTL_VOLSW:
975 	case SND_SOC_TPLG_CTL_VOLSW_SX:
976 	case SND_SOC_TPLG_CTL_VOLSW_XR_SX:
977 		sm = (struct soc_mixer_control *)kc->private_value;
978 		dobj = &sm->dobj;
979 		ret = sof_control_load_volume(scomp, scontrol, kc, hdr);
980 		break;
981 	case SND_SOC_TPLG_CTL_BYTES:
982 		sbe = (struct soc_bytes_ext *)kc->private_value;
983 		dobj = &sbe->dobj;
984 		ret = sof_control_load_bytes(scomp, scontrol, kc, hdr);
985 		break;
986 	case SND_SOC_TPLG_CTL_ENUM:
987 	case SND_SOC_TPLG_CTL_ENUM_VALUE:
988 		se = (struct soc_enum *)kc->private_value;
989 		dobj = &se->dobj;
990 		ret = sof_control_load_enum(scomp, scontrol, kc, hdr);
991 		break;
992 	case SND_SOC_TPLG_CTL_RANGE:
993 	case SND_SOC_TPLG_CTL_STROBE:
994 	case SND_SOC_TPLG_DAPM_CTL_VOLSW:
995 	case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
996 	case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
997 	case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
998 	case SND_SOC_TPLG_DAPM_CTL_PIN:
999 	default:
1000 		dev_warn(scomp->dev, "control type not supported %d:%d:%d\n",
1001 			 hdr->ops.get, hdr->ops.put, hdr->ops.info);
1002 		kfree(scontrol->name);
1003 		kfree(scontrol);
1004 		return 0;
1005 	}
1006 
1007 	if (ret < 0) {
1008 		kfree(scontrol->name);
1009 		kfree(scontrol);
1010 		return ret;
1011 	}
1012 
1013 	scontrol->led_ctl.led_value = -1;
1014 
1015 	dobj->private = scontrol;
1016 	list_add(&scontrol->list, &sdev->kcontrol_list);
1017 	return 0;
1018 }
1019 
1020 static int sof_control_unload(struct snd_soc_component *scomp,
1021 			      struct snd_soc_dobj *dobj)
1022 {
1023 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1024 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1025 	struct snd_sof_control *scontrol = dobj->private;
1026 	int ret = 0;
1027 
1028 	dev_dbg(scomp->dev, "tplg: unload control name : %s\n", scontrol->name);
1029 
1030 	if (tplg_ops && tplg_ops->control_free) {
1031 		ret = tplg_ops->control_free(sdev, scontrol);
1032 		if (ret < 0)
1033 			dev_err(scomp->dev, "failed to free control: %s\n", scontrol->name);
1034 	}
1035 
1036 	/* free all data before returning in case of error too */
1037 	kfree(scontrol->ipc_control_data);
1038 	kfree(scontrol->priv);
1039 	kfree(scontrol->name);
1040 	list_del(&scontrol->list);
1041 	kfree(scontrol);
1042 
1043 	return ret;
1044 }
1045 
1046 /*
1047  * DAI Topology
1048  */
1049 
1050 static int sof_connect_dai_widget(struct snd_soc_component *scomp,
1051 				  struct snd_soc_dapm_widget *w,
1052 				  struct snd_soc_tplg_dapm_widget *tw,
1053 				  struct snd_sof_dai *dai)
1054 {
1055 	struct snd_soc_card *card = scomp->card;
1056 	struct snd_soc_pcm_runtime *rtd;
1057 	struct snd_soc_dai *cpu_dai;
1058 	int stream;
1059 	int i;
1060 
1061 	if (!w->sname) {
1062 		dev_err(scomp->dev, "Widget %s does not have stream\n", w->name);
1063 		return -EINVAL;
1064 	}
1065 
1066 	if (w->id == snd_soc_dapm_dai_out)
1067 		stream = SNDRV_PCM_STREAM_CAPTURE;
1068 	else if (w->id == snd_soc_dapm_dai_in)
1069 		stream = SNDRV_PCM_STREAM_PLAYBACK;
1070 	else
1071 		goto end;
1072 
1073 	list_for_each_entry(rtd, &card->rtd_list, list) {
1074 		/* does stream match DAI link ? */
1075 		if (!rtd->dai_link->stream_name ||
1076 		    strcmp(w->sname, rtd->dai_link->stream_name))
1077 			continue;
1078 
1079 		for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
1080 			/*
1081 			 * Please create DAI widget in the right order
1082 			 * to ensure BE will connect to the right DAI
1083 			 * widget.
1084 			 */
1085 			if (!snd_soc_dai_get_widget(cpu_dai, stream)) {
1086 				snd_soc_dai_set_widget(cpu_dai, stream, w);
1087 				break;
1088 			}
1089 		}
1090 		if (i == rtd->dai_link->num_cpus) {
1091 			dev_err(scomp->dev, "error: can't find BE for DAI %s\n", w->name);
1092 
1093 			return -EINVAL;
1094 		}
1095 
1096 		dai->name = rtd->dai_link->name;
1097 		dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n",
1098 			w->name, rtd->dai_link->name);
1099 	}
1100 end:
1101 	/* check we have a connection */
1102 	if (!dai->name) {
1103 		dev_err(scomp->dev, "error: can't connect DAI %s stream %s\n",
1104 			w->name, w->sname);
1105 		return -EINVAL;
1106 	}
1107 
1108 	return 0;
1109 }
1110 
1111 static void sof_disconnect_dai_widget(struct snd_soc_component *scomp,
1112 				      struct snd_soc_dapm_widget *w)
1113 {
1114 	struct snd_soc_card *card = scomp->card;
1115 	struct snd_soc_pcm_runtime *rtd;
1116 	struct snd_soc_dai *cpu_dai;
1117 	int i, stream;
1118 
1119 	if (!w->sname)
1120 		return;
1121 
1122 	if (w->id == snd_soc_dapm_dai_out)
1123 		stream = SNDRV_PCM_STREAM_CAPTURE;
1124 	else if (w->id == snd_soc_dapm_dai_in)
1125 		stream = SNDRV_PCM_STREAM_PLAYBACK;
1126 	else
1127 		return;
1128 
1129 	list_for_each_entry(rtd, &card->rtd_list, list) {
1130 		/* does stream match DAI link ? */
1131 		if (!rtd->dai_link->stream_name ||
1132 		    strcmp(w->sname, rtd->dai_link->stream_name))
1133 			continue;
1134 
1135 		for_each_rtd_cpu_dais(rtd, i, cpu_dai)
1136 			if (snd_soc_dai_get_widget(cpu_dai, stream) == w) {
1137 				snd_soc_dai_set_widget(cpu_dai, stream, NULL);
1138 				break;
1139 			}
1140 	}
1141 }
1142 
1143 /* bind PCM ID to host component ID */
1144 static int spcm_bind(struct snd_soc_component *scomp, struct snd_sof_pcm *spcm,
1145 		     int dir)
1146 {
1147 	struct snd_sof_widget *host_widget;
1148 
1149 	host_widget = snd_sof_find_swidget_sname(scomp,
1150 						 spcm->pcm.caps[dir].name,
1151 						 dir);
1152 	if (!host_widget) {
1153 		dev_err(scomp->dev, "can't find host comp to bind pcm\n");
1154 		return -EINVAL;
1155 	}
1156 
1157 	spcm->stream[dir].comp_id = host_widget->comp_id;
1158 
1159 	return 0;
1160 }
1161 
1162 static int sof_get_token_value(u32 token_id, struct snd_sof_tuple *tuples, int num_tuples)
1163 {
1164 	int i;
1165 
1166 	if (!tuples)
1167 		return -EINVAL;
1168 
1169 	for (i = 0; i < num_tuples; i++) {
1170 		if (tuples[i].token == token_id)
1171 			return tuples[i].value.v;
1172 	}
1173 
1174 	return -EINVAL;
1175 }
1176 
1177 static int sof_widget_parse_tokens(struct snd_soc_component *scomp, struct snd_sof_widget *swidget,
1178 				   struct snd_soc_tplg_dapm_widget *tw,
1179 				   enum sof_tokens *object_token_list, int count)
1180 {
1181 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1182 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1183 	struct snd_soc_tplg_private *private = &tw->priv;
1184 	const struct sof_token_info *token_list;
1185 	int num_tuples = 0;
1186 	int ret, i;
1187 
1188 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
1189 	/* nothing to do if token_list is NULL */
1190 	if (!token_list)
1191 		return 0;
1192 
1193 	if (count > 0 && !object_token_list) {
1194 		dev_err(scomp->dev, "No token list for widget %s\n", swidget->widget->name);
1195 		return -EINVAL;
1196 	}
1197 
1198 	/* calculate max size of tuples array */
1199 	for (i = 0; i < count; i++)
1200 		num_tuples += token_list[object_token_list[i]].count;
1201 
1202 	/* allocate memory for tuples array */
1203 	swidget->tuples = kcalloc(num_tuples, sizeof(*swidget->tuples), GFP_KERNEL);
1204 	if (!swidget->tuples)
1205 		return -ENOMEM;
1206 
1207 	/* parse token list for widget */
1208 	for (i = 0; i < count; i++) {
1209 		int num_sets = 1;
1210 
1211 		if (object_token_list[i] >= SOF_TOKEN_COUNT) {
1212 			dev_err(scomp->dev, "Invalid token id %d for widget %s\n",
1213 				object_token_list[i], swidget->widget->name);
1214 			ret = -EINVAL;
1215 			goto err;
1216 		}
1217 
1218 		switch (object_token_list[i]) {
1219 		case SOF_COMP_EXT_TOKENS:
1220 			/* parse and save UUID in swidget */
1221 			ret = sof_parse_tokens(scomp, swidget,
1222 					       token_list[object_token_list[i]].tokens,
1223 					       token_list[object_token_list[i]].count,
1224 					       private->array, le32_to_cpu(private->size));
1225 			if (ret < 0) {
1226 				dev_err(scomp->dev, "Failed parsing %s for widget %s\n",
1227 					token_list[object_token_list[i]].name,
1228 					swidget->widget->name);
1229 				goto err;
1230 			}
1231 
1232 			continue;
1233 		case SOF_IN_AUDIO_FORMAT_TOKENS:
1234 		case SOF_OUT_AUDIO_FORMAT_TOKENS:
1235 		case SOF_COPIER_GATEWAY_CFG_TOKENS:
1236 		case SOF_AUDIO_FORMAT_BUFFER_SIZE_TOKENS:
1237 			num_sets = sof_get_token_value(SOF_TKN_COMP_NUM_AUDIO_FORMATS,
1238 						       swidget->tuples, swidget->num_tuples);
1239 
1240 			if (num_sets < 0) {
1241 				dev_err(sdev->dev, "Invalid audio format count for %s\n",
1242 					swidget->widget->name);
1243 				ret = num_sets;
1244 				goto err;
1245 			}
1246 
1247 			if (num_sets > 1) {
1248 				struct snd_sof_tuple *new_tuples;
1249 
1250 				num_tuples += token_list[object_token_list[i]].count * num_sets;
1251 				new_tuples = krealloc(swidget->tuples,
1252 						      sizeof(*new_tuples) * num_tuples, GFP_KERNEL);
1253 				if (!new_tuples) {
1254 					ret = -ENOMEM;
1255 					goto err;
1256 				}
1257 
1258 				swidget->tuples = new_tuples;
1259 			}
1260 			break;
1261 		default:
1262 			break;
1263 		}
1264 
1265 		/* copy one set of tuples per token ID into swidget->tuples */
1266 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1267 				      object_token_list[i], num_sets, swidget->tuples,
1268 				      num_tuples, &swidget->num_tuples);
1269 		if (ret < 0) {
1270 			dev_err(scomp->dev, "Failed parsing %s for widget %s err: %d\n",
1271 				token_list[object_token_list[i]].name, swidget->widget->name, ret);
1272 			goto err;
1273 		}
1274 	}
1275 
1276 	return 0;
1277 err:
1278 	kfree(swidget->tuples);
1279 	return ret;
1280 }
1281 
1282 static void sof_free_pin_binding(struct snd_sof_widget *swidget,
1283 				 bool pin_type)
1284 {
1285 	char **pin_binding;
1286 	u32 num_pins;
1287 	int i;
1288 
1289 	if (pin_type == SOF_PIN_TYPE_SINK) {
1290 		pin_binding = swidget->sink_pin_binding;
1291 		num_pins = swidget->num_sink_pins;
1292 	} else {
1293 		pin_binding = swidget->src_pin_binding;
1294 		num_pins = swidget->num_source_pins;
1295 	}
1296 
1297 	if (pin_binding) {
1298 		for (i = 0; i < num_pins; i++)
1299 			kfree(pin_binding[i]);
1300 	}
1301 
1302 	kfree(pin_binding);
1303 }
1304 
1305 static int sof_parse_pin_binding(struct snd_sof_widget *swidget,
1306 				 struct snd_soc_tplg_private *priv, bool pin_type)
1307 {
1308 	const struct sof_topology_token *pin_binding_token;
1309 	char *pin_binding[SOF_WIDGET_MAX_NUM_PINS];
1310 	int token_count;
1311 	u32 num_pins;
1312 	char **pb;
1313 	int ret;
1314 	int i;
1315 
1316 	if (pin_type == SOF_PIN_TYPE_SINK) {
1317 		num_pins = swidget->num_sink_pins;
1318 		pin_binding_token = comp_sink_pin_binding_tokens;
1319 		token_count = ARRAY_SIZE(comp_sink_pin_binding_tokens);
1320 	} else {
1321 		num_pins = swidget->num_source_pins;
1322 		pin_binding_token = comp_src_pin_binding_tokens;
1323 		token_count = ARRAY_SIZE(comp_src_pin_binding_tokens);
1324 	}
1325 
1326 	memset(pin_binding, 0, SOF_WIDGET_MAX_NUM_PINS * sizeof(char *));
1327 	ret = sof_parse_token_sets(swidget->scomp, pin_binding, pin_binding_token,
1328 				   token_count, priv->array, le32_to_cpu(priv->size),
1329 				   num_pins, sizeof(char *));
1330 	if (ret < 0)
1331 		goto err;
1332 
1333 	/* copy pin binding array to swidget only if it is defined in topology */
1334 	if (pin_binding[0]) {
1335 		pb = kmemdup(pin_binding, num_pins * sizeof(char *), GFP_KERNEL);
1336 		if (!pb) {
1337 			ret = -ENOMEM;
1338 			goto err;
1339 		}
1340 		if (pin_type == SOF_PIN_TYPE_SINK)
1341 			swidget->sink_pin_binding = pb;
1342 		else
1343 			swidget->src_pin_binding = pb;
1344 	}
1345 
1346 	return 0;
1347 
1348 err:
1349 	for (i = 0; i < num_pins; i++)
1350 		kfree(pin_binding[i]);
1351 
1352 	return ret;
1353 }
1354 
1355 /* external widget init - used for any driver specific init */
1356 static int sof_widget_ready(struct snd_soc_component *scomp, int index,
1357 			    struct snd_soc_dapm_widget *w,
1358 			    struct snd_soc_tplg_dapm_widget *tw)
1359 {
1360 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1361 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1362 	const struct sof_ipc_tplg_widget_ops *widget_ops;
1363 	struct snd_soc_tplg_private *priv = &tw->priv;
1364 	enum sof_tokens *token_list = NULL;
1365 	struct snd_sof_widget *swidget;
1366 	struct snd_sof_dai *dai;
1367 	int token_list_size = 0;
1368 	int ret = 0;
1369 
1370 	swidget = kzalloc(sizeof(*swidget), GFP_KERNEL);
1371 	if (!swidget)
1372 		return -ENOMEM;
1373 
1374 	swidget->scomp = scomp;
1375 	swidget->widget = w;
1376 	swidget->comp_id = sdev->next_comp_id++;
1377 	swidget->id = w->id;
1378 	swidget->pipeline_id = index;
1379 	swidget->private = NULL;
1380 	mutex_init(&swidget->setup_mutex);
1381 
1382 	ida_init(&swidget->src_queue_ida);
1383 	ida_init(&swidget->sink_queue_ida);
1384 
1385 	ret = sof_parse_tokens(scomp, swidget, comp_pin_tokens,
1386 			       ARRAY_SIZE(comp_pin_tokens), priv->array,
1387 			       le32_to_cpu(priv->size));
1388 	if (ret < 0) {
1389 		dev_err(scomp->dev, "failed to parse component pin tokens for %s\n",
1390 			w->name);
1391 		return ret;
1392 	}
1393 
1394 	if (swidget->num_sink_pins > SOF_WIDGET_MAX_NUM_PINS ||
1395 	    swidget->num_source_pins > SOF_WIDGET_MAX_NUM_PINS) {
1396 		dev_err(scomp->dev, "invalid pins for %s: [sink: %d, src: %d]\n",
1397 			swidget->widget->name, swidget->num_sink_pins, swidget->num_source_pins);
1398 		return -EINVAL;
1399 	}
1400 
1401 	if (swidget->num_sink_pins > 1) {
1402 		ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SINK);
1403 		/* on parsing error, pin binding is not allocated, nothing to free. */
1404 		if (ret < 0) {
1405 			dev_err(scomp->dev, "failed to parse sink pin binding for %s\n",
1406 				w->name);
1407 			return ret;
1408 		}
1409 	}
1410 
1411 	if (swidget->num_source_pins > 1) {
1412 		ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SOURCE);
1413 		/* on parsing error, pin binding is not allocated, nothing to free. */
1414 		if (ret < 0) {
1415 			dev_err(scomp->dev, "failed to parse source pin binding for %s\n",
1416 				w->name);
1417 			return ret;
1418 		}
1419 	}
1420 
1421 	dev_dbg(scomp->dev,
1422 		"tplg: widget %d (%s) is ready [type: %d, pipe: %d, pins: %d / %d, stream: %s]\n",
1423 		swidget->comp_id, w->name, swidget->id, index,
1424 		swidget->num_sink_pins, swidget->num_source_pins,
1425 		strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0 ? w->sname : "none");
1426 
1427 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
1428 	if (widget_ops) {
1429 		token_list = widget_ops[w->id].token_list;
1430 		token_list_size = widget_ops[w->id].token_list_size;
1431 	}
1432 
1433 	/* handle any special case widgets */
1434 	switch (w->id) {
1435 	case snd_soc_dapm_dai_in:
1436 	case snd_soc_dapm_dai_out:
1437 		dai = kzalloc(sizeof(*dai), GFP_KERNEL);
1438 		if (!dai) {
1439 			kfree(swidget);
1440 			return -ENOMEM;
1441 
1442 		}
1443 
1444 		ret = sof_widget_parse_tokens(scomp, swidget, tw, token_list, token_list_size);
1445 		if (!ret)
1446 			ret = sof_connect_dai_widget(scomp, w, tw, dai);
1447 		if (ret < 0) {
1448 			kfree(dai);
1449 			break;
1450 		}
1451 		list_add(&dai->list, &sdev->dai_list);
1452 		swidget->private = dai;
1453 		break;
1454 	case snd_soc_dapm_effect:
1455 		/* check we have some tokens - we need at least process type */
1456 		if (le32_to_cpu(tw->priv.size) == 0) {
1457 			dev_err(scomp->dev, "error: process tokens not found\n");
1458 			ret = -EINVAL;
1459 			break;
1460 		}
1461 		ret = sof_widget_parse_tokens(scomp, swidget, tw, token_list, token_list_size);
1462 		break;
1463 	case snd_soc_dapm_pga:
1464 		if (!le32_to_cpu(tw->num_kcontrols)) {
1465 			dev_err(scomp->dev, "invalid kcontrol count %d for volume\n",
1466 				tw->num_kcontrols);
1467 			ret = -EINVAL;
1468 			break;
1469 		}
1470 
1471 		fallthrough;
1472 	case snd_soc_dapm_mixer:
1473 	case snd_soc_dapm_buffer:
1474 	case snd_soc_dapm_scheduler:
1475 	case snd_soc_dapm_aif_out:
1476 	case snd_soc_dapm_aif_in:
1477 	case snd_soc_dapm_src:
1478 	case snd_soc_dapm_asrc:
1479 	case snd_soc_dapm_siggen:
1480 	case snd_soc_dapm_mux:
1481 	case snd_soc_dapm_demux:
1482 		ret = sof_widget_parse_tokens(scomp, swidget, tw,  token_list, token_list_size);
1483 		break;
1484 	case snd_soc_dapm_switch:
1485 	case snd_soc_dapm_dai_link:
1486 	case snd_soc_dapm_kcontrol:
1487 	default:
1488 		dev_dbg(scomp->dev, "widget type %d name %s not handled\n", swidget->id, tw->name);
1489 		break;
1490 	}
1491 
1492 	/* check token parsing reply */
1493 	if (ret < 0) {
1494 		dev_err(scomp->dev,
1495 			"error: failed to add widget id %d type %d name : %s stream %s\n",
1496 			tw->shift, swidget->id, tw->name,
1497 			strnlen(tw->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0
1498 				? tw->sname : "none");
1499 		kfree(swidget);
1500 		return ret;
1501 	}
1502 
1503 	if (sof_debug_check_flag(SOF_DBG_DISABLE_MULTICORE)) {
1504 		swidget->core = SOF_DSP_PRIMARY_CORE;
1505 	} else {
1506 		int core = sof_get_token_value(SOF_TKN_COMP_CORE_ID, swidget->tuples,
1507 					       swidget->num_tuples);
1508 
1509 		if (core >= 0)
1510 			swidget->core = core;
1511 	}
1512 
1513 	/* bind widget to external event */
1514 	if (tw->event_type) {
1515 		if (widget_ops && widget_ops[w->id].bind_event) {
1516 			ret = widget_ops[w->id].bind_event(scomp, swidget,
1517 							   le16_to_cpu(tw->event_type));
1518 			if (ret) {
1519 				dev_err(scomp->dev, "widget event binding failed for %s\n",
1520 					swidget->widget->name);
1521 				kfree(swidget->private);
1522 				kfree(swidget->tuples);
1523 				kfree(swidget);
1524 				return ret;
1525 			}
1526 		}
1527 	}
1528 
1529 	/* create and add pipeline for scheduler type widgets */
1530 	if (w->id == snd_soc_dapm_scheduler) {
1531 		struct snd_sof_pipeline *spipe;
1532 
1533 		spipe = kzalloc(sizeof(*spipe), GFP_KERNEL);
1534 		if (!spipe) {
1535 			kfree(swidget->private);
1536 			kfree(swidget->tuples);
1537 			kfree(swidget);
1538 			return -ENOMEM;
1539 		}
1540 
1541 		spipe->pipe_widget = swidget;
1542 		swidget->spipe = spipe;
1543 		list_add(&spipe->list, &sdev->pipeline_list);
1544 	}
1545 
1546 	w->dobj.private = swidget;
1547 	list_add(&swidget->list, &sdev->widget_list);
1548 	return ret;
1549 }
1550 
1551 static int sof_route_unload(struct snd_soc_component *scomp,
1552 			    struct snd_soc_dobj *dobj)
1553 {
1554 	struct snd_sof_route *sroute;
1555 
1556 	sroute = dobj->private;
1557 	if (!sroute)
1558 		return 0;
1559 
1560 	/* free sroute and its private data */
1561 	kfree(sroute->private);
1562 	list_del(&sroute->list);
1563 	kfree(sroute);
1564 
1565 	return 0;
1566 }
1567 
1568 static int sof_widget_unload(struct snd_soc_component *scomp,
1569 			     struct snd_soc_dobj *dobj)
1570 {
1571 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1572 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1573 	const struct sof_ipc_tplg_widget_ops *widget_ops;
1574 	const struct snd_kcontrol_new *kc;
1575 	struct snd_soc_dapm_widget *widget;
1576 	struct snd_sof_control *scontrol;
1577 	struct snd_sof_widget *swidget;
1578 	struct soc_mixer_control *sm;
1579 	struct soc_bytes_ext *sbe;
1580 	struct snd_sof_dai *dai;
1581 	struct soc_enum *se;
1582 	int i;
1583 
1584 	swidget = dobj->private;
1585 	if (!swidget)
1586 		return 0;
1587 
1588 	widget = swidget->widget;
1589 
1590 	switch (swidget->id) {
1591 	case snd_soc_dapm_dai_in:
1592 	case snd_soc_dapm_dai_out:
1593 		dai = swidget->private;
1594 
1595 		if (dai)
1596 			list_del(&dai->list);
1597 
1598 		sof_disconnect_dai_widget(scomp, widget);
1599 
1600 		break;
1601 	case snd_soc_dapm_scheduler:
1602 	{
1603 		struct snd_sof_pipeline *spipe = swidget->spipe;
1604 
1605 		list_del(&spipe->list);
1606 		kfree(spipe);
1607 		swidget->spipe = NULL;
1608 		break;
1609 	}
1610 	default:
1611 		break;
1612 	}
1613 	for (i = 0; i < widget->num_kcontrols; i++) {
1614 		kc = &widget->kcontrol_news[i];
1615 		switch (widget->dobj.widget.kcontrol_type[i]) {
1616 		case SND_SOC_TPLG_TYPE_MIXER:
1617 			sm = (struct soc_mixer_control *)kc->private_value;
1618 			scontrol = sm->dobj.private;
1619 			if (sm->max > 1)
1620 				kfree(scontrol->volume_table);
1621 			break;
1622 		case SND_SOC_TPLG_TYPE_ENUM:
1623 			se = (struct soc_enum *)kc->private_value;
1624 			scontrol = se->dobj.private;
1625 			break;
1626 		case SND_SOC_TPLG_TYPE_BYTES:
1627 			sbe = (struct soc_bytes_ext *)kc->private_value;
1628 			scontrol = sbe->dobj.private;
1629 			break;
1630 		default:
1631 			dev_warn(scomp->dev, "unsupported kcontrol_type\n");
1632 			goto out;
1633 		}
1634 		kfree(scontrol->ipc_control_data);
1635 		list_del(&scontrol->list);
1636 		kfree(scontrol->name);
1637 		kfree(scontrol);
1638 	}
1639 
1640 out:
1641 	/* free IPC related data */
1642 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
1643 	if (widget_ops && widget_ops[swidget->id].ipc_free)
1644 		widget_ops[swidget->id].ipc_free(swidget);
1645 
1646 	ida_destroy(&swidget->src_queue_ida);
1647 	ida_destroy(&swidget->sink_queue_ida);
1648 
1649 	sof_free_pin_binding(swidget, SOF_PIN_TYPE_SINK);
1650 	sof_free_pin_binding(swidget, SOF_PIN_TYPE_SOURCE);
1651 
1652 	kfree(swidget->tuples);
1653 
1654 	/* remove and free swidget object */
1655 	list_del(&swidget->list);
1656 	kfree(swidget);
1657 
1658 	return 0;
1659 }
1660 
1661 /*
1662  * DAI HW configuration.
1663  */
1664 
1665 /* FE DAI - used for any driver specific init */
1666 static int sof_dai_load(struct snd_soc_component *scomp, int index,
1667 			struct snd_soc_dai_driver *dai_drv,
1668 			struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
1669 {
1670 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1671 	const struct sof_ipc_pcm_ops *ipc_pcm_ops = sof_ipc_get_ops(sdev, pcm);
1672 	struct snd_soc_tplg_stream_caps *caps;
1673 	struct snd_soc_tplg_private *private = &pcm->priv;
1674 	struct snd_sof_pcm *spcm;
1675 	int stream;
1676 	int ret;
1677 
1678 	/* nothing to do for BEs atm */
1679 	if (!pcm)
1680 		return 0;
1681 
1682 	spcm = kzalloc(sizeof(*spcm), GFP_KERNEL);
1683 	if (!spcm)
1684 		return -ENOMEM;
1685 
1686 	spcm->scomp = scomp;
1687 
1688 	for_each_pcm_streams(stream) {
1689 		spcm->stream[stream].comp_id = COMP_ID_UNASSIGNED;
1690 		if (pcm->compress)
1691 			snd_sof_compr_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
1692 		else
1693 			snd_sof_pcm_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
1694 	}
1695 
1696 	spcm->pcm = *pcm;
1697 	dev_dbg(scomp->dev, "tplg: load pcm %s\n", pcm->dai_name);
1698 
1699 	/* perform pcm set op */
1700 	if (ipc_pcm_ops && ipc_pcm_ops->pcm_setup) {
1701 		ret = ipc_pcm_ops->pcm_setup(sdev, spcm);
1702 		if (ret < 0)
1703 			return ret;
1704 	}
1705 
1706 	dai_drv->dobj.private = spcm;
1707 	list_add(&spcm->list, &sdev->pcm_list);
1708 
1709 	ret = sof_parse_tokens(scomp, spcm, stream_tokens,
1710 			       ARRAY_SIZE(stream_tokens), private->array,
1711 			       le32_to_cpu(private->size));
1712 	if (ret) {
1713 		dev_err(scomp->dev, "error: parse stream tokens failed %d\n",
1714 			le32_to_cpu(private->size));
1715 		return ret;
1716 	}
1717 
1718 	/* do we need to allocate playback PCM DMA pages */
1719 	if (!spcm->pcm.playback)
1720 		goto capture;
1721 
1722 	stream = SNDRV_PCM_STREAM_PLAYBACK;
1723 
1724 	caps = &spcm->pcm.caps[stream];
1725 
1726 	/* allocate playback page table buffer */
1727 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
1728 				  PAGE_SIZE, &spcm->stream[stream].page_table);
1729 	if (ret < 0) {
1730 		dev_err(scomp->dev, "error: can't alloc page table for %s %d\n",
1731 			caps->name, ret);
1732 
1733 		return ret;
1734 	}
1735 
1736 	/* bind pcm to host comp */
1737 	ret = spcm_bind(scomp, spcm, stream);
1738 	if (ret) {
1739 		dev_err(scomp->dev,
1740 			"error: can't bind pcm to host\n");
1741 		goto free_playback_tables;
1742 	}
1743 
1744 capture:
1745 	stream = SNDRV_PCM_STREAM_CAPTURE;
1746 
1747 	/* do we need to allocate capture PCM DMA pages */
1748 	if (!spcm->pcm.capture)
1749 		return ret;
1750 
1751 	caps = &spcm->pcm.caps[stream];
1752 
1753 	/* allocate capture page table buffer */
1754 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
1755 				  PAGE_SIZE, &spcm->stream[stream].page_table);
1756 	if (ret < 0) {
1757 		dev_err(scomp->dev, "error: can't alloc page table for %s %d\n",
1758 			caps->name, ret);
1759 		goto free_playback_tables;
1760 	}
1761 
1762 	/* bind pcm to host comp */
1763 	ret = spcm_bind(scomp, spcm, stream);
1764 	if (ret) {
1765 		dev_err(scomp->dev,
1766 			"error: can't bind pcm to host\n");
1767 		snd_dma_free_pages(&spcm->stream[stream].page_table);
1768 		goto free_playback_tables;
1769 	}
1770 
1771 	return ret;
1772 
1773 free_playback_tables:
1774 	if (spcm->pcm.playback)
1775 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
1776 
1777 	return ret;
1778 }
1779 
1780 static int sof_dai_unload(struct snd_soc_component *scomp,
1781 			  struct snd_soc_dobj *dobj)
1782 {
1783 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1784 	const struct sof_ipc_pcm_ops *ipc_pcm_ops = sof_ipc_get_ops(sdev, pcm);
1785 	struct snd_sof_pcm *spcm = dobj->private;
1786 
1787 	/* free PCM DMA pages */
1788 	if (spcm->pcm.playback)
1789 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
1790 
1791 	if (spcm->pcm.capture)
1792 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_CAPTURE].page_table);
1793 
1794 	/* perform pcm free op */
1795 	if (ipc_pcm_ops && ipc_pcm_ops->pcm_free)
1796 		ipc_pcm_ops->pcm_free(sdev, spcm);
1797 
1798 	/* remove from list and free spcm */
1799 	list_del(&spcm->list);
1800 	kfree(spcm);
1801 
1802 	return 0;
1803 }
1804 
1805 static const struct sof_topology_token common_dai_link_tokens[] = {
1806 	{SOF_TKN_DAI_TYPE, SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_dai_type,
1807 		offsetof(struct snd_sof_dai_link, type)},
1808 };
1809 
1810 /* DAI link - used for any driver specific init */
1811 static int sof_link_load(struct snd_soc_component *scomp, int index, struct snd_soc_dai_link *link,
1812 			 struct snd_soc_tplg_link_config *cfg)
1813 {
1814 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1815 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1816 	struct snd_soc_tplg_private *private = &cfg->priv;
1817 	const struct sof_token_info *token_list;
1818 	struct snd_sof_dai_link *slink;
1819 	u32 token_id = 0;
1820 	int num_tuples = 0;
1821 	int ret, num_sets;
1822 
1823 	if (!link->platforms) {
1824 		dev_err(scomp->dev, "error: no platforms\n");
1825 		return -EINVAL;
1826 	}
1827 	link->platforms->name = dev_name(scomp->dev);
1828 
1829 	if (tplg_ops && tplg_ops->link_setup) {
1830 		ret = tplg_ops->link_setup(sdev, link);
1831 		if (ret < 0)
1832 			return ret;
1833 	}
1834 
1835 	/* Set nonatomic property for FE dai links as their trigger action involves IPC's */
1836 	if (!link->no_pcm) {
1837 		link->nonatomic = true;
1838 		return 0;
1839 	}
1840 
1841 	/* check we have some tokens - we need at least DAI type */
1842 	if (le32_to_cpu(private->size) == 0) {
1843 		dev_err(scomp->dev, "error: expected tokens for DAI, none found\n");
1844 		return -EINVAL;
1845 	}
1846 
1847 	slink = kzalloc(sizeof(*slink), GFP_KERNEL);
1848 	if (!slink)
1849 		return -ENOMEM;
1850 
1851 	slink->num_hw_configs = le32_to_cpu(cfg->num_hw_configs);
1852 	slink->hw_configs = kmemdup(cfg->hw_config,
1853 				    sizeof(*slink->hw_configs) * slink->num_hw_configs,
1854 				    GFP_KERNEL);
1855 	if (!slink->hw_configs) {
1856 		kfree(slink);
1857 		return -ENOMEM;
1858 	}
1859 
1860 	slink->default_hw_cfg_id = le32_to_cpu(cfg->default_hw_config_id);
1861 	slink->link = link;
1862 
1863 	dev_dbg(scomp->dev, "tplg: %d hw_configs found, default id: %d for dai link %s!\n",
1864 		slink->num_hw_configs, slink->default_hw_cfg_id, link->name);
1865 
1866 	ret = sof_parse_tokens(scomp, slink, common_dai_link_tokens,
1867 			       ARRAY_SIZE(common_dai_link_tokens),
1868 			       private->array, le32_to_cpu(private->size));
1869 	if (ret < 0) {
1870 		dev_err(scomp->dev, "Failed tp parse common DAI link tokens\n");
1871 		kfree(slink->hw_configs);
1872 		kfree(slink);
1873 		return ret;
1874 	}
1875 
1876 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
1877 	if (!token_list)
1878 		goto out;
1879 
1880 	/* calculate size of tuples array */
1881 	num_tuples += token_list[SOF_DAI_LINK_TOKENS].count;
1882 	num_sets = slink->num_hw_configs;
1883 	switch (slink->type) {
1884 	case SOF_DAI_INTEL_SSP:
1885 		token_id = SOF_SSP_TOKENS;
1886 		num_tuples += token_list[SOF_SSP_TOKENS].count * slink->num_hw_configs;
1887 		break;
1888 	case SOF_DAI_INTEL_DMIC:
1889 		token_id = SOF_DMIC_TOKENS;
1890 		num_tuples += token_list[SOF_DMIC_TOKENS].count;
1891 
1892 		/* Allocate memory for max PDM controllers */
1893 		num_tuples += token_list[SOF_DMIC_PDM_TOKENS].count * SOF_DAI_INTEL_DMIC_NUM_CTRL;
1894 		break;
1895 	case SOF_DAI_INTEL_HDA:
1896 		token_id = SOF_HDA_TOKENS;
1897 		num_tuples += token_list[SOF_HDA_TOKENS].count;
1898 		break;
1899 	case SOF_DAI_INTEL_ALH:
1900 		token_id = SOF_ALH_TOKENS;
1901 		num_tuples += token_list[SOF_ALH_TOKENS].count;
1902 		break;
1903 	case SOF_DAI_IMX_SAI:
1904 		token_id = SOF_SAI_TOKENS;
1905 		num_tuples += token_list[SOF_SAI_TOKENS].count;
1906 		break;
1907 	case SOF_DAI_IMX_ESAI:
1908 		token_id = SOF_ESAI_TOKENS;
1909 		num_tuples += token_list[SOF_ESAI_TOKENS].count;
1910 		break;
1911 	case SOF_DAI_MEDIATEK_AFE:
1912 		token_id = SOF_AFE_TOKENS;
1913 		num_tuples += token_list[SOF_AFE_TOKENS].count;
1914 		break;
1915 	case SOF_DAI_AMD_DMIC:
1916 		token_id = SOF_ACPDMIC_TOKENS;
1917 		num_tuples += token_list[SOF_ACPDMIC_TOKENS].count;
1918 		break;
1919 	case SOF_DAI_AMD_SP:
1920 	case SOF_DAI_AMD_HS:
1921 	case SOF_DAI_AMD_SP_VIRTUAL:
1922 	case SOF_DAI_AMD_HS_VIRTUAL:
1923 		token_id = SOF_ACPI2S_TOKENS;
1924 		num_tuples += token_list[SOF_ACPI2S_TOKENS].count;
1925 		break;
1926 	default:
1927 		break;
1928 	}
1929 
1930 	/* allocate memory for tuples array */
1931 	slink->tuples = kcalloc(num_tuples, sizeof(*slink->tuples), GFP_KERNEL);
1932 	if (!slink->tuples) {
1933 		kfree(slink->hw_configs);
1934 		kfree(slink);
1935 		return -ENOMEM;
1936 	}
1937 
1938 	if (token_list[SOF_DAI_LINK_TOKENS].tokens) {
1939 		/* parse one set of DAI link tokens */
1940 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1941 				      SOF_DAI_LINK_TOKENS, 1, slink->tuples,
1942 				      num_tuples, &slink->num_tuples);
1943 		if (ret < 0) {
1944 			dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1945 				token_list[SOF_DAI_LINK_TOKENS].name, link->name);
1946 			goto err;
1947 		}
1948 	}
1949 
1950 	/* nothing more to do if there are no DAI type-specific tokens defined */
1951 	if (!token_id || !token_list[token_id].tokens)
1952 		goto out;
1953 
1954 	/* parse "num_sets" sets of DAI-specific tokens */
1955 	ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1956 			      token_id, num_sets, slink->tuples, num_tuples, &slink->num_tuples);
1957 	if (ret < 0) {
1958 		dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1959 			token_list[token_id].name, link->name);
1960 		goto err;
1961 	}
1962 
1963 	/* for DMIC, also parse all sets of DMIC PDM tokens based on active PDM count */
1964 	if (token_id == SOF_DMIC_TOKENS) {
1965 		num_sets = sof_get_token_value(SOF_TKN_INTEL_DMIC_NUM_PDM_ACTIVE,
1966 					       slink->tuples, slink->num_tuples);
1967 
1968 		if (num_sets < 0) {
1969 			dev_err(sdev->dev, "Invalid active PDM count for %s\n", link->name);
1970 			ret = num_sets;
1971 			goto err;
1972 		}
1973 
1974 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1975 				      SOF_DMIC_PDM_TOKENS, num_sets, slink->tuples,
1976 				      num_tuples, &slink->num_tuples);
1977 		if (ret < 0) {
1978 			dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1979 				token_list[SOF_DMIC_PDM_TOKENS].name, link->name);
1980 			goto err;
1981 		}
1982 	}
1983 out:
1984 	link->dobj.private = slink;
1985 	list_add(&slink->list, &sdev->dai_link_list);
1986 
1987 	return 0;
1988 
1989 err:
1990 	kfree(slink->tuples);
1991 	kfree(slink->hw_configs);
1992 	kfree(slink);
1993 
1994 	return ret;
1995 }
1996 
1997 static int sof_link_unload(struct snd_soc_component *scomp, struct snd_soc_dobj *dobj)
1998 {
1999 	struct snd_sof_dai_link *slink = dobj->private;
2000 
2001 	if (!slink)
2002 		return 0;
2003 
2004 	kfree(slink->tuples);
2005 	list_del(&slink->list);
2006 	kfree(slink->hw_configs);
2007 	kfree(slink);
2008 	dobj->private = NULL;
2009 
2010 	return 0;
2011 }
2012 
2013 /* DAI link - used for any driver specific init */
2014 static int sof_route_load(struct snd_soc_component *scomp, int index,
2015 			  struct snd_soc_dapm_route *route)
2016 {
2017 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2018 	struct snd_sof_widget *source_swidget, *sink_swidget;
2019 	struct snd_soc_dobj *dobj = &route->dobj;
2020 	struct snd_sof_route *sroute;
2021 	int ret = 0;
2022 
2023 	/* allocate memory for sroute and connect */
2024 	sroute = kzalloc(sizeof(*sroute), GFP_KERNEL);
2025 	if (!sroute)
2026 		return -ENOMEM;
2027 
2028 	sroute->scomp = scomp;
2029 	dev_dbg(scomp->dev, "sink %s control %s source %s\n",
2030 		route->sink, route->control ? route->control : "none",
2031 		route->source);
2032 
2033 	/* source component */
2034 	source_swidget = snd_sof_find_swidget(scomp, (char *)route->source);
2035 	if (!source_swidget) {
2036 		dev_err(scomp->dev, "error: source %s not found\n",
2037 			route->source);
2038 		ret = -EINVAL;
2039 		goto err;
2040 	}
2041 
2042 	/*
2043 	 * Virtual widgets of type output/out_drv may be added in topology
2044 	 * for compatibility. These are not handled by the FW.
2045 	 * So, don't send routes whose source/sink widget is of such types
2046 	 * to the DSP.
2047 	 */
2048 	if (source_swidget->id == snd_soc_dapm_out_drv ||
2049 	    source_swidget->id == snd_soc_dapm_output)
2050 		goto err;
2051 
2052 	/* sink component */
2053 	sink_swidget = snd_sof_find_swidget(scomp, (char *)route->sink);
2054 	if (!sink_swidget) {
2055 		dev_err(scomp->dev, "error: sink %s not found\n",
2056 			route->sink);
2057 		ret = -EINVAL;
2058 		goto err;
2059 	}
2060 
2061 	/*
2062 	 * Don't send routes whose sink widget is of type
2063 	 * output or out_drv to the DSP
2064 	 */
2065 	if (sink_swidget->id == snd_soc_dapm_out_drv ||
2066 	    sink_swidget->id == snd_soc_dapm_output)
2067 		goto err;
2068 
2069 	sroute->route = route;
2070 	dobj->private = sroute;
2071 	sroute->src_widget = source_swidget;
2072 	sroute->sink_widget = sink_swidget;
2073 
2074 	/* add route to route list */
2075 	list_add(&sroute->list, &sdev->route_list);
2076 
2077 	return 0;
2078 err:
2079 	kfree(sroute);
2080 	return ret;
2081 }
2082 
2083 /**
2084  * sof_set_widget_pipeline - Set pipeline for a component
2085  * @sdev: pointer to struct snd_sof_dev
2086  * @spipe: pointer to struct snd_sof_pipeline
2087  * @swidget: pointer to struct snd_sof_widget that has the same pipeline ID as @pipe_widget
2088  *
2089  * Return: 0 if successful, -EINVAL on error.
2090  * The function checks if @swidget is associated with any volatile controls. If so, setting
2091  * the dynamic_pipeline_widget is disallowed.
2092  */
2093 static int sof_set_widget_pipeline(struct snd_sof_dev *sdev, struct snd_sof_pipeline *spipe,
2094 				   struct snd_sof_widget *swidget)
2095 {
2096 	struct snd_sof_widget *pipe_widget = spipe->pipe_widget;
2097 	struct snd_sof_control *scontrol;
2098 
2099 	if (pipe_widget->dynamic_pipeline_widget) {
2100 		/* dynamic widgets cannot have volatile kcontrols */
2101 		list_for_each_entry(scontrol, &sdev->kcontrol_list, list)
2102 			if (scontrol->comp_id == swidget->comp_id &&
2103 			    (scontrol->access & SNDRV_CTL_ELEM_ACCESS_VOLATILE)) {
2104 				dev_err(sdev->dev,
2105 					"error: volatile control found for dynamic widget %s\n",
2106 					swidget->widget->name);
2107 				return -EINVAL;
2108 			}
2109 	}
2110 
2111 	/* set the pipeline and apply the dynamic_pipeline_widget_flag */
2112 	swidget->spipe = spipe;
2113 	swidget->dynamic_pipeline_widget = pipe_widget->dynamic_pipeline_widget;
2114 
2115 	return 0;
2116 }
2117 
2118 /* completion - called at completion of firmware loading */
2119 static int sof_complete(struct snd_soc_component *scomp)
2120 {
2121 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2122 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
2123 	struct snd_sof_widget *swidget, *comp_swidget;
2124 	const struct sof_ipc_tplg_widget_ops *widget_ops;
2125 	struct snd_sof_control *scontrol;
2126 	struct snd_sof_pipeline *spipe;
2127 	int ret;
2128 
2129 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
2130 
2131 	/* first update all control IPC structures based on the IPC version */
2132 	if (tplg_ops && tplg_ops->control_setup)
2133 		list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
2134 			ret = tplg_ops->control_setup(sdev, scontrol);
2135 			if (ret < 0) {
2136 				dev_err(sdev->dev, "failed updating IPC struct for control %s\n",
2137 					scontrol->name);
2138 				return ret;
2139 			}
2140 		}
2141 
2142 	/*
2143 	 * then update all widget IPC structures. If any of the ipc_setup callbacks fail, the
2144 	 * topology will be removed and all widgets will be unloaded resulting in freeing all
2145 	 * associated memories.
2146 	 */
2147 	list_for_each_entry(swidget, &sdev->widget_list, list) {
2148 		if (widget_ops && widget_ops[swidget->id].ipc_setup) {
2149 			ret = widget_ops[swidget->id].ipc_setup(swidget);
2150 			if (ret < 0) {
2151 				dev_err(sdev->dev, "failed updating IPC struct for %s\n",
2152 					swidget->widget->name);
2153 				return ret;
2154 			}
2155 		}
2156 	}
2157 
2158 	/* set the pipe_widget and apply the dynamic_pipeline_widget_flag */
2159 	list_for_each_entry(spipe, &sdev->pipeline_list, list) {
2160 		struct snd_sof_widget *pipe_widget = spipe->pipe_widget;
2161 
2162 		/*
2163 		 * Apply the dynamic_pipeline_widget flag and set the pipe_widget field
2164 		 * for all widgets that have the same pipeline ID as the scheduler widget.
2165 		 * Skip the scheduler widgets as they have their pipeline set during widget_ready
2166 		 */
2167 		list_for_each_entry(comp_swidget, &sdev->widget_list, list)
2168 			if (comp_swidget->widget->id != snd_soc_dapm_scheduler &&
2169 			    comp_swidget->pipeline_id == pipe_widget->pipeline_id) {
2170 				ret = sof_set_widget_pipeline(sdev, spipe, comp_swidget);
2171 				if (ret < 0)
2172 					return ret;
2173 			}
2174 	}
2175 
2176 	/* verify topology components loading including dynamic pipelines */
2177 	if (sof_debug_check_flag(SOF_DBG_VERIFY_TPLG)) {
2178 		if (tplg_ops && tplg_ops->set_up_all_pipelines &&
2179 		    tplg_ops->tear_down_all_pipelines) {
2180 			ret = tplg_ops->set_up_all_pipelines(sdev, true);
2181 			if (ret < 0) {
2182 				dev_err(sdev->dev, "Failed to set up all topology pipelines: %d\n",
2183 					ret);
2184 				return ret;
2185 			}
2186 
2187 			ret = tplg_ops->tear_down_all_pipelines(sdev, true);
2188 			if (ret < 0) {
2189 				dev_err(sdev->dev, "Failed to tear down topology pipelines: %d\n",
2190 					ret);
2191 				return ret;
2192 			}
2193 		}
2194 	}
2195 
2196 	/* set up static pipelines */
2197 	if (tplg_ops && tplg_ops->set_up_all_pipelines)
2198 		return tplg_ops->set_up_all_pipelines(sdev, false);
2199 
2200 	return 0;
2201 }
2202 
2203 /* manifest - optional to inform component of manifest */
2204 static int sof_manifest(struct snd_soc_component *scomp, int index,
2205 			struct snd_soc_tplg_manifest *man)
2206 {
2207 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2208 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
2209 
2210 	if (tplg_ops && tplg_ops->parse_manifest)
2211 		return tplg_ops->parse_manifest(scomp, index, man);
2212 
2213 	return 0;
2214 }
2215 
2216 /* vendor specific kcontrol handlers available for binding */
2217 static const struct snd_soc_tplg_kcontrol_ops sof_io_ops[] = {
2218 	{SOF_TPLG_KCTL_VOL_ID, snd_sof_volume_get, snd_sof_volume_put},
2219 	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_get, snd_sof_bytes_put},
2220 	{SOF_TPLG_KCTL_ENUM_ID, snd_sof_enum_get, snd_sof_enum_put},
2221 	{SOF_TPLG_KCTL_SWITCH_ID, snd_sof_switch_get, snd_sof_switch_put},
2222 };
2223 
2224 /* vendor specific bytes ext handlers available for binding */
2225 static const struct snd_soc_tplg_bytes_ext_ops sof_bytes_ext_ops[] = {
2226 	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_ext_get, snd_sof_bytes_ext_put},
2227 	{SOF_TPLG_KCTL_BYTES_VOLATILE_RO, snd_sof_bytes_ext_volatile_get},
2228 };
2229 
2230 static struct snd_soc_tplg_ops sof_tplg_ops = {
2231 	/* external kcontrol init - used for any driver specific init */
2232 	.control_load	= sof_control_load,
2233 	.control_unload	= sof_control_unload,
2234 
2235 	/* external kcontrol init - used for any driver specific init */
2236 	.dapm_route_load	= sof_route_load,
2237 	.dapm_route_unload	= sof_route_unload,
2238 
2239 	/* external widget init - used for any driver specific init */
2240 	/* .widget_load is not currently used */
2241 	.widget_ready	= sof_widget_ready,
2242 	.widget_unload	= sof_widget_unload,
2243 
2244 	/* FE DAI - used for any driver specific init */
2245 	.dai_load	= sof_dai_load,
2246 	.dai_unload	= sof_dai_unload,
2247 
2248 	/* DAI link - used for any driver specific init */
2249 	.link_load	= sof_link_load,
2250 	.link_unload	= sof_link_unload,
2251 
2252 	/* completion - called at completion of firmware loading */
2253 	.complete	= sof_complete,
2254 
2255 	/* manifest - optional to inform component of manifest */
2256 	.manifest	= sof_manifest,
2257 
2258 	/* vendor specific kcontrol handlers available for binding */
2259 	.io_ops		= sof_io_ops,
2260 	.io_ops_count	= ARRAY_SIZE(sof_io_ops),
2261 
2262 	/* vendor specific bytes ext handlers available for binding */
2263 	.bytes_ext_ops	= sof_bytes_ext_ops,
2264 	.bytes_ext_ops_count	= ARRAY_SIZE(sof_bytes_ext_ops),
2265 };
2266 
2267 int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file)
2268 {
2269 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2270 	const struct firmware *fw;
2271 	int ret;
2272 
2273 	dev_dbg(scomp->dev, "loading topology:%s\n", file);
2274 
2275 	ret = request_firmware(&fw, file, scomp->dev);
2276 	if (ret < 0) {
2277 		dev_err(scomp->dev, "error: tplg request firmware %s failed err: %d\n",
2278 			file, ret);
2279 		dev_err(scomp->dev,
2280 			"you may need to download the firmware from https://github.com/thesofproject/sof-bin/\n");
2281 		return ret;
2282 	}
2283 
2284 	ret = snd_soc_tplg_component_load(scomp, &sof_tplg_ops, fw);
2285 	if (ret < 0) {
2286 		dev_err(scomp->dev, "error: tplg component load failed %d\n",
2287 			ret);
2288 		ret = -EINVAL;
2289 	}
2290 
2291 	release_firmware(fw);
2292 
2293 	if (ret >= 0 && sdev->led_present)
2294 		ret = snd_ctl_led_request();
2295 
2296 	return ret;
2297 }
2298 EXPORT_SYMBOL(snd_sof_load_topology);
2299