xref: /openbmc/linux/sound/soc/sof/topology.c (revision 7201a3d4)
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 i;
1059 
1060 	if (!w->sname) {
1061 		dev_err(scomp->dev, "Widget %s does not have stream\n", w->name);
1062 		return -EINVAL;
1063 	}
1064 
1065 	list_for_each_entry(rtd, &card->rtd_list, list) {
1066 		/* does stream match DAI link ? */
1067 		if (!rtd->dai_link->stream_name ||
1068 		    strcmp(w->sname, rtd->dai_link->stream_name))
1069 			continue;
1070 
1071 		switch (w->id) {
1072 		case snd_soc_dapm_dai_out:
1073 			for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
1074 				/*
1075 				 * Please create DAI widget in the right order
1076 				 * to ensure BE will connect to the right DAI
1077 				 * widget.
1078 				 */
1079 				if (!cpu_dai->capture_widget) {
1080 					cpu_dai->capture_widget = w;
1081 					break;
1082 				}
1083 			}
1084 			if (i == rtd->dai_link->num_cpus) {
1085 				dev_err(scomp->dev, "error: can't find BE for DAI %s\n",
1086 					w->name);
1087 
1088 				return -EINVAL;
1089 			}
1090 			dai->name = rtd->dai_link->name;
1091 			dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n",
1092 				w->name, rtd->dai_link->name);
1093 			break;
1094 		case snd_soc_dapm_dai_in:
1095 			for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
1096 				/*
1097 				 * Please create DAI widget in the right order
1098 				 * to ensure BE will connect to the right DAI
1099 				 * widget.
1100 				 */
1101 				if (!cpu_dai->playback_widget) {
1102 					cpu_dai->playback_widget = w;
1103 					break;
1104 				}
1105 			}
1106 			if (i == rtd->dai_link->num_cpus) {
1107 				dev_err(scomp->dev, "error: can't find BE for DAI %s\n",
1108 					w->name);
1109 
1110 				return -EINVAL;
1111 			}
1112 			dai->name = rtd->dai_link->name;
1113 			dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n",
1114 				w->name, rtd->dai_link->name);
1115 			break;
1116 		default:
1117 			break;
1118 		}
1119 	}
1120 
1121 	/* check we have a connection */
1122 	if (!dai->name) {
1123 		dev_err(scomp->dev, "error: can't connect DAI %s stream %s\n",
1124 			w->name, w->sname);
1125 		return -EINVAL;
1126 	}
1127 
1128 	return 0;
1129 }
1130 
1131 static void sof_disconnect_dai_widget(struct snd_soc_component *scomp,
1132 				      struct snd_soc_dapm_widget *w)
1133 {
1134 	struct snd_soc_card *card = scomp->card;
1135 	struct snd_soc_pcm_runtime *rtd;
1136 	struct snd_soc_dai *cpu_dai;
1137 	int i;
1138 
1139 	if (!w->sname)
1140 		return;
1141 
1142 	list_for_each_entry(rtd, &card->rtd_list, list) {
1143 		/* does stream match DAI link ? */
1144 		if (!rtd->dai_link->stream_name ||
1145 		    strcmp(w->sname, rtd->dai_link->stream_name))
1146 			continue;
1147 
1148 		switch (w->id) {
1149 		case snd_soc_dapm_dai_out:
1150 			for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
1151 				if (cpu_dai->capture_widget == w) {
1152 					cpu_dai->capture_widget = NULL;
1153 					break;
1154 				}
1155 			}
1156 			break;
1157 		case snd_soc_dapm_dai_in:
1158 			for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
1159 				if (cpu_dai->playback_widget == w) {
1160 					cpu_dai->playback_widget = NULL;
1161 					break;
1162 				}
1163 			}
1164 			break;
1165 		default:
1166 			break;
1167 		}
1168 	}
1169 }
1170 
1171 /* bind PCM ID to host component ID */
1172 static int spcm_bind(struct snd_soc_component *scomp, struct snd_sof_pcm *spcm,
1173 		     int dir)
1174 {
1175 	struct snd_sof_widget *host_widget;
1176 
1177 	host_widget = snd_sof_find_swidget_sname(scomp,
1178 						 spcm->pcm.caps[dir].name,
1179 						 dir);
1180 	if (!host_widget) {
1181 		dev_err(scomp->dev, "can't find host comp to bind pcm\n");
1182 		return -EINVAL;
1183 	}
1184 
1185 	spcm->stream[dir].comp_id = host_widget->comp_id;
1186 
1187 	return 0;
1188 }
1189 
1190 static int sof_get_token_value(u32 token_id, struct snd_sof_tuple *tuples, int num_tuples)
1191 {
1192 	int i;
1193 
1194 	if (!tuples)
1195 		return -EINVAL;
1196 
1197 	for (i = 0; i < num_tuples; i++) {
1198 		if (tuples[i].token == token_id)
1199 			return tuples[i].value.v;
1200 	}
1201 
1202 	return -EINVAL;
1203 }
1204 
1205 static int sof_widget_parse_tokens(struct snd_soc_component *scomp, struct snd_sof_widget *swidget,
1206 				   struct snd_soc_tplg_dapm_widget *tw,
1207 				   enum sof_tokens *object_token_list, int count)
1208 {
1209 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1210 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1211 	struct snd_soc_tplg_private *private = &tw->priv;
1212 	const struct sof_token_info *token_list;
1213 	int num_tuples = 0;
1214 	int ret, i;
1215 
1216 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
1217 	/* nothing to do if token_list is NULL */
1218 	if (!token_list)
1219 		return 0;
1220 
1221 	if (count > 0 && !object_token_list) {
1222 		dev_err(scomp->dev, "No token list for widget %s\n", swidget->widget->name);
1223 		return -EINVAL;
1224 	}
1225 
1226 	/* calculate max size of tuples array */
1227 	for (i = 0; i < count; i++)
1228 		num_tuples += token_list[object_token_list[i]].count;
1229 
1230 	/* allocate memory for tuples array */
1231 	swidget->tuples = kcalloc(num_tuples, sizeof(*swidget->tuples), GFP_KERNEL);
1232 	if (!swidget->tuples)
1233 		return -ENOMEM;
1234 
1235 	/* parse token list for widget */
1236 	for (i = 0; i < count; i++) {
1237 		int num_sets = 1;
1238 
1239 		if (object_token_list[i] >= SOF_TOKEN_COUNT) {
1240 			dev_err(scomp->dev, "Invalid token id %d for widget %s\n",
1241 				object_token_list[i], swidget->widget->name);
1242 			ret = -EINVAL;
1243 			goto err;
1244 		}
1245 
1246 		switch (object_token_list[i]) {
1247 		case SOF_COMP_EXT_TOKENS:
1248 			/* parse and save UUID in swidget */
1249 			ret = sof_parse_tokens(scomp, swidget,
1250 					       token_list[object_token_list[i]].tokens,
1251 					       token_list[object_token_list[i]].count,
1252 					       private->array, le32_to_cpu(private->size));
1253 			if (ret < 0) {
1254 				dev_err(scomp->dev, "Failed parsing %s for widget %s\n",
1255 					token_list[object_token_list[i]].name,
1256 					swidget->widget->name);
1257 				goto err;
1258 			}
1259 
1260 			continue;
1261 		case SOF_IN_AUDIO_FORMAT_TOKENS:
1262 		case SOF_OUT_AUDIO_FORMAT_TOKENS:
1263 		case SOF_COPIER_GATEWAY_CFG_TOKENS:
1264 		case SOF_AUDIO_FORMAT_BUFFER_SIZE_TOKENS:
1265 			num_sets = sof_get_token_value(SOF_TKN_COMP_NUM_AUDIO_FORMATS,
1266 						       swidget->tuples, swidget->num_tuples);
1267 
1268 			if (num_sets < 0) {
1269 				dev_err(sdev->dev, "Invalid audio format count for %s\n",
1270 					swidget->widget->name);
1271 				ret = num_sets;
1272 				goto err;
1273 			}
1274 
1275 			if (num_sets > 1) {
1276 				struct snd_sof_tuple *new_tuples;
1277 
1278 				num_tuples += token_list[object_token_list[i]].count * num_sets;
1279 				new_tuples = krealloc(swidget->tuples,
1280 						      sizeof(*new_tuples) * num_tuples, GFP_KERNEL);
1281 				if (!new_tuples) {
1282 					ret = -ENOMEM;
1283 					goto err;
1284 				}
1285 
1286 				swidget->tuples = new_tuples;
1287 			}
1288 			break;
1289 		default:
1290 			break;
1291 		}
1292 
1293 		/* copy one set of tuples per token ID into swidget->tuples */
1294 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1295 				      object_token_list[i], num_sets, swidget->tuples,
1296 				      num_tuples, &swidget->num_tuples);
1297 		if (ret < 0) {
1298 			dev_err(scomp->dev, "Failed parsing %s for widget %s err: %d\n",
1299 				token_list[object_token_list[i]].name, swidget->widget->name, ret);
1300 			goto err;
1301 		}
1302 	}
1303 
1304 	return 0;
1305 err:
1306 	kfree(swidget->tuples);
1307 	return ret;
1308 }
1309 
1310 static void sof_free_pin_binding(struct snd_sof_widget *swidget,
1311 				 bool pin_type)
1312 {
1313 	char **pin_binding;
1314 	u32 num_pins;
1315 	int i;
1316 
1317 	if (pin_type == SOF_PIN_TYPE_SINK) {
1318 		pin_binding = swidget->sink_pin_binding;
1319 		num_pins = swidget->num_sink_pins;
1320 	} else {
1321 		pin_binding = swidget->src_pin_binding;
1322 		num_pins = swidget->num_source_pins;
1323 	}
1324 
1325 	if (pin_binding) {
1326 		for (i = 0; i < num_pins; i++)
1327 			kfree(pin_binding[i]);
1328 	}
1329 
1330 	kfree(pin_binding);
1331 }
1332 
1333 static int sof_parse_pin_binding(struct snd_sof_widget *swidget,
1334 				 struct snd_soc_tplg_private *priv, bool pin_type)
1335 {
1336 	const struct sof_topology_token *pin_binding_token;
1337 	char *pin_binding[SOF_WIDGET_MAX_NUM_PINS];
1338 	int token_count;
1339 	u32 num_pins;
1340 	char **pb;
1341 	int ret;
1342 	int i;
1343 
1344 	if (pin_type == SOF_PIN_TYPE_SINK) {
1345 		num_pins = swidget->num_sink_pins;
1346 		pin_binding_token = comp_sink_pin_binding_tokens;
1347 		token_count = ARRAY_SIZE(comp_sink_pin_binding_tokens);
1348 	} else {
1349 		num_pins = swidget->num_source_pins;
1350 		pin_binding_token = comp_src_pin_binding_tokens;
1351 		token_count = ARRAY_SIZE(comp_src_pin_binding_tokens);
1352 	}
1353 
1354 	memset(pin_binding, 0, SOF_WIDGET_MAX_NUM_PINS * sizeof(char *));
1355 	ret = sof_parse_token_sets(swidget->scomp, pin_binding, pin_binding_token,
1356 				   token_count, priv->array, le32_to_cpu(priv->size),
1357 				   num_pins, sizeof(char *));
1358 	if (ret < 0)
1359 		goto err;
1360 
1361 	/* copy pin binding array to swidget only if it is defined in topology */
1362 	if (pin_binding[0]) {
1363 		pb = kmemdup(pin_binding, num_pins * sizeof(char *), GFP_KERNEL);
1364 		if (!pb) {
1365 			ret = -ENOMEM;
1366 			goto err;
1367 		}
1368 		if (pin_type == SOF_PIN_TYPE_SINK)
1369 			swidget->sink_pin_binding = pb;
1370 		else
1371 			swidget->src_pin_binding = pb;
1372 	}
1373 
1374 	return 0;
1375 
1376 err:
1377 	for (i = 0; i < num_pins; i++)
1378 		kfree(pin_binding[i]);
1379 
1380 	return ret;
1381 }
1382 
1383 /* external widget init - used for any driver specific init */
1384 static int sof_widget_ready(struct snd_soc_component *scomp, int index,
1385 			    struct snd_soc_dapm_widget *w,
1386 			    struct snd_soc_tplg_dapm_widget *tw)
1387 {
1388 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1389 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1390 	const struct sof_ipc_tplg_widget_ops *widget_ops;
1391 	struct snd_soc_tplg_private *priv = &tw->priv;
1392 	enum sof_tokens *token_list = NULL;
1393 	struct snd_sof_widget *swidget;
1394 	struct snd_sof_dai *dai;
1395 	int token_list_size = 0;
1396 	int ret = 0;
1397 
1398 	swidget = kzalloc(sizeof(*swidget), GFP_KERNEL);
1399 	if (!swidget)
1400 		return -ENOMEM;
1401 
1402 	swidget->scomp = scomp;
1403 	swidget->widget = w;
1404 	swidget->comp_id = sdev->next_comp_id++;
1405 	swidget->complete = 0;
1406 	swidget->id = w->id;
1407 	swidget->pipeline_id = index;
1408 	swidget->private = NULL;
1409 	ida_init(&swidget->src_queue_ida);
1410 	ida_init(&swidget->sink_queue_ida);
1411 
1412 	ret = sof_parse_tokens(scomp, swidget, comp_pin_tokens,
1413 			       ARRAY_SIZE(comp_pin_tokens), priv->array,
1414 			       le32_to_cpu(priv->size));
1415 	if (ret < 0) {
1416 		dev_err(scomp->dev, "failed to parse component pin tokens for %s\n",
1417 			w->name);
1418 		return ret;
1419 	}
1420 
1421 	if (swidget->num_sink_pins > SOF_WIDGET_MAX_NUM_PINS ||
1422 	    swidget->num_source_pins > SOF_WIDGET_MAX_NUM_PINS) {
1423 		dev_err(scomp->dev, "invalid pins for %s: [sink: %d, src: %d]\n",
1424 			swidget->widget->name, swidget->num_sink_pins, swidget->num_source_pins);
1425 		return -EINVAL;
1426 	}
1427 
1428 	if (swidget->num_sink_pins > 1) {
1429 		ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SINK);
1430 		/* on parsing error, pin binding is not allocated, nothing to free. */
1431 		if (ret < 0) {
1432 			dev_err(scomp->dev, "failed to parse sink pin binding for %s\n",
1433 				w->name);
1434 			return ret;
1435 		}
1436 	}
1437 
1438 	if (swidget->num_source_pins > 1) {
1439 		ret = sof_parse_pin_binding(swidget, priv, SOF_PIN_TYPE_SOURCE);
1440 		/* on parsing error, pin binding is not allocated, nothing to free. */
1441 		if (ret < 0) {
1442 			dev_err(scomp->dev, "failed to parse source pin binding for %s\n",
1443 				w->name);
1444 			return ret;
1445 		}
1446 	}
1447 
1448 	dev_dbg(scomp->dev,
1449 		"tplg: widget %d (%s) is ready [type: %d, pipe: %d, pins: %d / %d, stream: %s]\n",
1450 		swidget->comp_id, w->name, swidget->id, index,
1451 		swidget->num_sink_pins, swidget->num_source_pins,
1452 		strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0 ? w->sname : "none");
1453 
1454 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
1455 	if (widget_ops) {
1456 		token_list = widget_ops[w->id].token_list;
1457 		token_list_size = widget_ops[w->id].token_list_size;
1458 	}
1459 
1460 	/* handle any special case widgets */
1461 	switch (w->id) {
1462 	case snd_soc_dapm_dai_in:
1463 	case snd_soc_dapm_dai_out:
1464 		dai = kzalloc(sizeof(*dai), GFP_KERNEL);
1465 		if (!dai) {
1466 			kfree(swidget);
1467 			return -ENOMEM;
1468 
1469 		}
1470 
1471 		ret = sof_widget_parse_tokens(scomp, swidget, tw, token_list, token_list_size);
1472 		if (!ret)
1473 			ret = sof_connect_dai_widget(scomp, w, tw, dai);
1474 		if (ret < 0) {
1475 			kfree(dai);
1476 			break;
1477 		}
1478 		list_add(&dai->list, &sdev->dai_list);
1479 		swidget->private = dai;
1480 		break;
1481 	case snd_soc_dapm_effect:
1482 		/* check we have some tokens - we need at least process type */
1483 		if (le32_to_cpu(tw->priv.size) == 0) {
1484 			dev_err(scomp->dev, "error: process tokens not found\n");
1485 			ret = -EINVAL;
1486 			break;
1487 		}
1488 		ret = sof_widget_parse_tokens(scomp, swidget, tw, token_list, token_list_size);
1489 		break;
1490 	case snd_soc_dapm_pga:
1491 		if (!le32_to_cpu(tw->num_kcontrols)) {
1492 			dev_err(scomp->dev, "invalid kcontrol count %d for volume\n",
1493 				tw->num_kcontrols);
1494 			ret = -EINVAL;
1495 			break;
1496 		}
1497 
1498 		fallthrough;
1499 	case snd_soc_dapm_mixer:
1500 	case snd_soc_dapm_buffer:
1501 	case snd_soc_dapm_scheduler:
1502 	case snd_soc_dapm_aif_out:
1503 	case snd_soc_dapm_aif_in:
1504 	case snd_soc_dapm_src:
1505 	case snd_soc_dapm_asrc:
1506 	case snd_soc_dapm_siggen:
1507 	case snd_soc_dapm_mux:
1508 	case snd_soc_dapm_demux:
1509 		ret = sof_widget_parse_tokens(scomp, swidget, tw,  token_list, token_list_size);
1510 		break;
1511 	case snd_soc_dapm_switch:
1512 	case snd_soc_dapm_dai_link:
1513 	case snd_soc_dapm_kcontrol:
1514 	default:
1515 		dev_dbg(scomp->dev, "widget type %d name %s not handled\n", swidget->id, tw->name);
1516 		break;
1517 	}
1518 
1519 	/* check token parsing reply */
1520 	if (ret < 0) {
1521 		dev_err(scomp->dev,
1522 			"error: failed to add widget id %d type %d name : %s stream %s\n",
1523 			tw->shift, swidget->id, tw->name,
1524 			strnlen(tw->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) > 0
1525 				? tw->sname : "none");
1526 		kfree(swidget);
1527 		return ret;
1528 	}
1529 
1530 	if (sof_debug_check_flag(SOF_DBG_DISABLE_MULTICORE)) {
1531 		swidget->core = SOF_DSP_PRIMARY_CORE;
1532 	} else {
1533 		int core = sof_get_token_value(SOF_TKN_COMP_CORE_ID, swidget->tuples,
1534 					       swidget->num_tuples);
1535 
1536 		if (core >= 0)
1537 			swidget->core = core;
1538 	}
1539 
1540 	/* bind widget to external event */
1541 	if (tw->event_type) {
1542 		if (widget_ops && widget_ops[w->id].bind_event) {
1543 			ret = widget_ops[w->id].bind_event(scomp, swidget,
1544 							   le16_to_cpu(tw->event_type));
1545 			if (ret) {
1546 				dev_err(scomp->dev, "widget event binding failed for %s\n",
1547 					swidget->widget->name);
1548 				kfree(swidget->private);
1549 				kfree(swidget->tuples);
1550 				kfree(swidget);
1551 				return ret;
1552 			}
1553 		}
1554 	}
1555 
1556 	w->dobj.private = swidget;
1557 	list_add(&swidget->list, &sdev->widget_list);
1558 	return ret;
1559 }
1560 
1561 static int sof_route_unload(struct snd_soc_component *scomp,
1562 			    struct snd_soc_dobj *dobj)
1563 {
1564 	struct snd_sof_route *sroute;
1565 
1566 	sroute = dobj->private;
1567 	if (!sroute)
1568 		return 0;
1569 
1570 	/* free sroute and its private data */
1571 	kfree(sroute->private);
1572 	list_del(&sroute->list);
1573 	kfree(sroute);
1574 
1575 	return 0;
1576 }
1577 
1578 static int sof_widget_unload(struct snd_soc_component *scomp,
1579 			     struct snd_soc_dobj *dobj)
1580 {
1581 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1582 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1583 	const struct sof_ipc_tplg_widget_ops *widget_ops;
1584 	const struct snd_kcontrol_new *kc;
1585 	struct snd_soc_dapm_widget *widget;
1586 	struct snd_sof_control *scontrol;
1587 	struct snd_sof_widget *swidget;
1588 	struct soc_mixer_control *sm;
1589 	struct soc_bytes_ext *sbe;
1590 	struct snd_sof_dai *dai;
1591 	struct soc_enum *se;
1592 	int i;
1593 
1594 	swidget = dobj->private;
1595 	if (!swidget)
1596 		return 0;
1597 
1598 	widget = swidget->widget;
1599 
1600 	switch (swidget->id) {
1601 	case snd_soc_dapm_dai_in:
1602 	case snd_soc_dapm_dai_out:
1603 		dai = swidget->private;
1604 
1605 		if (dai)
1606 			list_del(&dai->list);
1607 
1608 		sof_disconnect_dai_widget(scomp, widget);
1609 
1610 		break;
1611 	default:
1612 		break;
1613 	}
1614 	for (i = 0; i < widget->num_kcontrols; i++) {
1615 		kc = &widget->kcontrol_news[i];
1616 		switch (widget->dobj.widget.kcontrol_type[i]) {
1617 		case SND_SOC_TPLG_TYPE_MIXER:
1618 			sm = (struct soc_mixer_control *)kc->private_value;
1619 			scontrol = sm->dobj.private;
1620 			if (sm->max > 1)
1621 				kfree(scontrol->volume_table);
1622 			break;
1623 		case SND_SOC_TPLG_TYPE_ENUM:
1624 			se = (struct soc_enum *)kc->private_value;
1625 			scontrol = se->dobj.private;
1626 			break;
1627 		case SND_SOC_TPLG_TYPE_BYTES:
1628 			sbe = (struct soc_bytes_ext *)kc->private_value;
1629 			scontrol = sbe->dobj.private;
1630 			break;
1631 		default:
1632 			dev_warn(scomp->dev, "unsupported kcontrol_type\n");
1633 			goto out;
1634 		}
1635 		kfree(scontrol->ipc_control_data);
1636 		list_del(&scontrol->list);
1637 		kfree(scontrol->name);
1638 		kfree(scontrol);
1639 	}
1640 
1641 out:
1642 	/* free IPC related data */
1643 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
1644 	if (widget_ops && widget_ops[swidget->id].ipc_free)
1645 		widget_ops[swidget->id].ipc_free(swidget);
1646 
1647 	ida_destroy(&swidget->src_queue_ida);
1648 	ida_destroy(&swidget->sink_queue_ida);
1649 
1650 	sof_free_pin_binding(swidget, SOF_PIN_TYPE_SINK);
1651 	sof_free_pin_binding(swidget, SOF_PIN_TYPE_SOURCE);
1652 
1653 	kfree(swidget->tuples);
1654 
1655 	/* remove and free swidget object */
1656 	list_del(&swidget->list);
1657 	kfree(swidget);
1658 
1659 	return 0;
1660 }
1661 
1662 /*
1663  * DAI HW configuration.
1664  */
1665 
1666 /* FE DAI - used for any driver specific init */
1667 static int sof_dai_load(struct snd_soc_component *scomp, int index,
1668 			struct snd_soc_dai_driver *dai_drv,
1669 			struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai)
1670 {
1671 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1672 	const struct sof_ipc_pcm_ops *ipc_pcm_ops = sof_ipc_get_ops(sdev, pcm);
1673 	struct snd_soc_tplg_stream_caps *caps;
1674 	struct snd_soc_tplg_private *private = &pcm->priv;
1675 	struct snd_sof_pcm *spcm;
1676 	int stream;
1677 	int ret;
1678 
1679 	/* nothing to do for BEs atm */
1680 	if (!pcm)
1681 		return 0;
1682 
1683 	spcm = kzalloc(sizeof(*spcm), GFP_KERNEL);
1684 	if (!spcm)
1685 		return -ENOMEM;
1686 
1687 	spcm->scomp = scomp;
1688 
1689 	for_each_pcm_streams(stream) {
1690 		spcm->stream[stream].comp_id = COMP_ID_UNASSIGNED;
1691 		if (pcm->compress)
1692 			snd_sof_compr_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
1693 		else
1694 			snd_sof_pcm_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
1695 	}
1696 
1697 	spcm->pcm = *pcm;
1698 	dev_dbg(scomp->dev, "tplg: load pcm %s\n", pcm->dai_name);
1699 
1700 	/* perform pcm set op */
1701 	if (ipc_pcm_ops && ipc_pcm_ops->pcm_setup) {
1702 		ret = ipc_pcm_ops->pcm_setup(sdev, spcm);
1703 		if (ret < 0)
1704 			return ret;
1705 	}
1706 
1707 	dai_drv->dobj.private = spcm;
1708 	list_add(&spcm->list, &sdev->pcm_list);
1709 
1710 	ret = sof_parse_tokens(scomp, spcm, stream_tokens,
1711 			       ARRAY_SIZE(stream_tokens), private->array,
1712 			       le32_to_cpu(private->size));
1713 	if (ret) {
1714 		dev_err(scomp->dev, "error: parse stream tokens failed %d\n",
1715 			le32_to_cpu(private->size));
1716 		return ret;
1717 	}
1718 
1719 	/* do we need to allocate playback PCM DMA pages */
1720 	if (!spcm->pcm.playback)
1721 		goto capture;
1722 
1723 	stream = SNDRV_PCM_STREAM_PLAYBACK;
1724 
1725 	caps = &spcm->pcm.caps[stream];
1726 
1727 	/* allocate playback page table buffer */
1728 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
1729 				  PAGE_SIZE, &spcm->stream[stream].page_table);
1730 	if (ret < 0) {
1731 		dev_err(scomp->dev, "error: can't alloc page table for %s %d\n",
1732 			caps->name, ret);
1733 
1734 		return ret;
1735 	}
1736 
1737 	/* bind pcm to host comp */
1738 	ret = spcm_bind(scomp, spcm, stream);
1739 	if (ret) {
1740 		dev_err(scomp->dev,
1741 			"error: can't bind pcm to host\n");
1742 		goto free_playback_tables;
1743 	}
1744 
1745 capture:
1746 	stream = SNDRV_PCM_STREAM_CAPTURE;
1747 
1748 	/* do we need to allocate capture PCM DMA pages */
1749 	if (!spcm->pcm.capture)
1750 		return ret;
1751 
1752 	caps = &spcm->pcm.caps[stream];
1753 
1754 	/* allocate capture page table buffer */
1755 	ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev,
1756 				  PAGE_SIZE, &spcm->stream[stream].page_table);
1757 	if (ret < 0) {
1758 		dev_err(scomp->dev, "error: can't alloc page table for %s %d\n",
1759 			caps->name, ret);
1760 		goto free_playback_tables;
1761 	}
1762 
1763 	/* bind pcm to host comp */
1764 	ret = spcm_bind(scomp, spcm, stream);
1765 	if (ret) {
1766 		dev_err(scomp->dev,
1767 			"error: can't bind pcm to host\n");
1768 		snd_dma_free_pages(&spcm->stream[stream].page_table);
1769 		goto free_playback_tables;
1770 	}
1771 
1772 	return ret;
1773 
1774 free_playback_tables:
1775 	if (spcm->pcm.playback)
1776 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
1777 
1778 	return ret;
1779 }
1780 
1781 static int sof_dai_unload(struct snd_soc_component *scomp,
1782 			  struct snd_soc_dobj *dobj)
1783 {
1784 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1785 	const struct sof_ipc_pcm_ops *ipc_pcm_ops = sof_ipc_get_ops(sdev, pcm);
1786 	struct snd_sof_pcm *spcm = dobj->private;
1787 
1788 	/* free PCM DMA pages */
1789 	if (spcm->pcm.playback)
1790 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].page_table);
1791 
1792 	if (spcm->pcm.capture)
1793 		snd_dma_free_pages(&spcm->stream[SNDRV_PCM_STREAM_CAPTURE].page_table);
1794 
1795 	/* perform pcm free op */
1796 	if (ipc_pcm_ops && ipc_pcm_ops->pcm_free)
1797 		ipc_pcm_ops->pcm_free(sdev, spcm);
1798 
1799 	/* remove from list and free spcm */
1800 	list_del(&spcm->list);
1801 	kfree(spcm);
1802 
1803 	return 0;
1804 }
1805 
1806 static const struct sof_topology_token common_dai_link_tokens[] = {
1807 	{SOF_TKN_DAI_TYPE, SND_SOC_TPLG_TUPLE_TYPE_STRING, get_token_dai_type,
1808 		offsetof(struct snd_sof_dai_link, type)},
1809 };
1810 
1811 /* DAI link - used for any driver specific init */
1812 static int sof_link_load(struct snd_soc_component *scomp, int index, struct snd_soc_dai_link *link,
1813 			 struct snd_soc_tplg_link_config *cfg)
1814 {
1815 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
1816 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
1817 	struct snd_soc_tplg_private *private = &cfg->priv;
1818 	const struct sof_token_info *token_list;
1819 	struct snd_sof_dai_link *slink;
1820 	u32 token_id = 0;
1821 	int num_tuples = 0;
1822 	int ret, num_sets;
1823 
1824 	if (!link->platforms) {
1825 		dev_err(scomp->dev, "error: no platforms\n");
1826 		return -EINVAL;
1827 	}
1828 	link->platforms->name = dev_name(scomp->dev);
1829 
1830 	if (tplg_ops && tplg_ops->link_setup) {
1831 		ret = tplg_ops->link_setup(sdev, link);
1832 		if (ret < 0)
1833 			return ret;
1834 	}
1835 
1836 	/* Set nonatomic property for FE dai links as their trigger action involves IPC's */
1837 	if (!link->no_pcm) {
1838 		link->nonatomic = true;
1839 		return 0;
1840 	}
1841 
1842 	/* check we have some tokens - we need at least DAI type */
1843 	if (le32_to_cpu(private->size) == 0) {
1844 		dev_err(scomp->dev, "error: expected tokens for DAI, none found\n");
1845 		return -EINVAL;
1846 	}
1847 
1848 	slink = kzalloc(sizeof(*slink), GFP_KERNEL);
1849 	if (!slink)
1850 		return -ENOMEM;
1851 
1852 	slink->num_hw_configs = le32_to_cpu(cfg->num_hw_configs);
1853 	slink->hw_configs = kmemdup(cfg->hw_config,
1854 				    sizeof(*slink->hw_configs) * slink->num_hw_configs,
1855 				    GFP_KERNEL);
1856 	if (!slink->hw_configs) {
1857 		kfree(slink);
1858 		return -ENOMEM;
1859 	}
1860 
1861 	slink->default_hw_cfg_id = le32_to_cpu(cfg->default_hw_config_id);
1862 	slink->link = link;
1863 
1864 	dev_dbg(scomp->dev, "tplg: %d hw_configs found, default id: %d for dai link %s!\n",
1865 		slink->num_hw_configs, slink->default_hw_cfg_id, link->name);
1866 
1867 	ret = sof_parse_tokens(scomp, slink, common_dai_link_tokens,
1868 			       ARRAY_SIZE(common_dai_link_tokens),
1869 			       private->array, le32_to_cpu(private->size));
1870 	if (ret < 0) {
1871 		dev_err(scomp->dev, "Failed tp parse common DAI link tokens\n");
1872 		kfree(slink->hw_configs);
1873 		kfree(slink);
1874 		return ret;
1875 	}
1876 
1877 	token_list = tplg_ops ? tplg_ops->token_list : NULL;
1878 	if (!token_list)
1879 		goto out;
1880 
1881 	/* calculate size of tuples array */
1882 	num_tuples += token_list[SOF_DAI_LINK_TOKENS].count;
1883 	num_sets = slink->num_hw_configs;
1884 	switch (slink->type) {
1885 	case SOF_DAI_INTEL_SSP:
1886 		token_id = SOF_SSP_TOKENS;
1887 		num_tuples += token_list[SOF_SSP_TOKENS].count * slink->num_hw_configs;
1888 		break;
1889 	case SOF_DAI_INTEL_DMIC:
1890 		token_id = SOF_DMIC_TOKENS;
1891 		num_tuples += token_list[SOF_DMIC_TOKENS].count;
1892 
1893 		/* Allocate memory for max PDM controllers */
1894 		num_tuples += token_list[SOF_DMIC_PDM_TOKENS].count * SOF_DAI_INTEL_DMIC_NUM_CTRL;
1895 		break;
1896 	case SOF_DAI_INTEL_HDA:
1897 		token_id = SOF_HDA_TOKENS;
1898 		num_tuples += token_list[SOF_HDA_TOKENS].count;
1899 		break;
1900 	case SOF_DAI_INTEL_ALH:
1901 		token_id = SOF_ALH_TOKENS;
1902 		num_tuples += token_list[SOF_ALH_TOKENS].count;
1903 		break;
1904 	case SOF_DAI_IMX_SAI:
1905 		token_id = SOF_SAI_TOKENS;
1906 		num_tuples += token_list[SOF_SAI_TOKENS].count;
1907 		break;
1908 	case SOF_DAI_IMX_ESAI:
1909 		token_id = SOF_ESAI_TOKENS;
1910 		num_tuples += token_list[SOF_ESAI_TOKENS].count;
1911 		break;
1912 	case SOF_DAI_MEDIATEK_AFE:
1913 		token_id = SOF_AFE_TOKENS;
1914 		num_tuples += token_list[SOF_AFE_TOKENS].count;
1915 		break;
1916 	case SOF_DAI_AMD_DMIC:
1917 		token_id = SOF_ACPDMIC_TOKENS;
1918 		num_tuples += token_list[SOF_ACPDMIC_TOKENS].count;
1919 		break;
1920 	case SOF_DAI_AMD_SP:
1921 	case SOF_DAI_AMD_HS:
1922 	case SOF_DAI_AMD_SP_VIRTUAL:
1923 	case SOF_DAI_AMD_HS_VIRTUAL:
1924 		token_id = SOF_ACPI2S_TOKENS;
1925 		num_tuples += token_list[SOF_ACPI2S_TOKENS].count;
1926 		break;
1927 	default:
1928 		break;
1929 	}
1930 
1931 	/* allocate memory for tuples array */
1932 	slink->tuples = kcalloc(num_tuples, sizeof(*slink->tuples), GFP_KERNEL);
1933 	if (!slink->tuples) {
1934 		kfree(slink->hw_configs);
1935 		kfree(slink);
1936 		return -ENOMEM;
1937 	}
1938 
1939 	if (token_list[SOF_DAI_LINK_TOKENS].tokens) {
1940 		/* parse one set of DAI link tokens */
1941 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1942 				      SOF_DAI_LINK_TOKENS, 1, slink->tuples,
1943 				      num_tuples, &slink->num_tuples);
1944 		if (ret < 0) {
1945 			dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1946 				token_list[SOF_DAI_LINK_TOKENS].name, link->name);
1947 			goto err;
1948 		}
1949 	}
1950 
1951 	/* nothing more to do if there are no DAI type-specific tokens defined */
1952 	if (!token_id || !token_list[token_id].tokens)
1953 		goto out;
1954 
1955 	/* parse "num_sets" sets of DAI-specific tokens */
1956 	ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1957 			      token_id, num_sets, slink->tuples, num_tuples, &slink->num_tuples);
1958 	if (ret < 0) {
1959 		dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1960 			token_list[token_id].name, link->name);
1961 		goto err;
1962 	}
1963 
1964 	/* for DMIC, also parse all sets of DMIC PDM tokens based on active PDM count */
1965 	if (token_id == SOF_DMIC_TOKENS) {
1966 		num_sets = sof_get_token_value(SOF_TKN_INTEL_DMIC_NUM_PDM_ACTIVE,
1967 					       slink->tuples, slink->num_tuples);
1968 
1969 		if (num_sets < 0) {
1970 			dev_err(sdev->dev, "Invalid active PDM count for %s\n", link->name);
1971 			ret = num_sets;
1972 			goto err;
1973 		}
1974 
1975 		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
1976 				      SOF_DMIC_PDM_TOKENS, num_sets, slink->tuples,
1977 				      num_tuples, &slink->num_tuples);
1978 		if (ret < 0) {
1979 			dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
1980 				token_list[SOF_DMIC_PDM_TOKENS].name, link->name);
1981 			goto err;
1982 		}
1983 	}
1984 out:
1985 	link->dobj.private = slink;
1986 	list_add(&slink->list, &sdev->dai_link_list);
1987 
1988 	return 0;
1989 
1990 err:
1991 	kfree(slink->tuples);
1992 	kfree(slink->hw_configs);
1993 	kfree(slink);
1994 
1995 	return ret;
1996 }
1997 
1998 static int sof_link_unload(struct snd_soc_component *scomp, struct snd_soc_dobj *dobj)
1999 {
2000 	struct snd_sof_dai_link *slink = dobj->private;
2001 
2002 	if (!slink)
2003 		return 0;
2004 
2005 	kfree(slink->tuples);
2006 	list_del(&slink->list);
2007 	kfree(slink->hw_configs);
2008 	kfree(slink);
2009 	dobj->private = NULL;
2010 
2011 	return 0;
2012 }
2013 
2014 /* DAI link - used for any driver specific init */
2015 static int sof_route_load(struct snd_soc_component *scomp, int index,
2016 			  struct snd_soc_dapm_route *route)
2017 {
2018 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2019 	struct snd_sof_widget *source_swidget, *sink_swidget;
2020 	struct snd_soc_dobj *dobj = &route->dobj;
2021 	struct snd_sof_route *sroute;
2022 	int ret = 0;
2023 
2024 	/* allocate memory for sroute and connect */
2025 	sroute = kzalloc(sizeof(*sroute), GFP_KERNEL);
2026 	if (!sroute)
2027 		return -ENOMEM;
2028 
2029 	sroute->scomp = scomp;
2030 	dev_dbg(scomp->dev, "sink %s control %s source %s\n",
2031 		route->sink, route->control ? route->control : "none",
2032 		route->source);
2033 
2034 	/* source component */
2035 	source_swidget = snd_sof_find_swidget(scomp, (char *)route->source);
2036 	if (!source_swidget) {
2037 		dev_err(scomp->dev, "error: source %s not found\n",
2038 			route->source);
2039 		ret = -EINVAL;
2040 		goto err;
2041 	}
2042 
2043 	/*
2044 	 * Virtual widgets of type output/out_drv may be added in topology
2045 	 * for compatibility. These are not handled by the FW.
2046 	 * So, don't send routes whose source/sink widget is of such types
2047 	 * to the DSP.
2048 	 */
2049 	if (source_swidget->id == snd_soc_dapm_out_drv ||
2050 	    source_swidget->id == snd_soc_dapm_output)
2051 		goto err;
2052 
2053 	/* sink component */
2054 	sink_swidget = snd_sof_find_swidget(scomp, (char *)route->sink);
2055 	if (!sink_swidget) {
2056 		dev_err(scomp->dev, "error: sink %s not found\n",
2057 			route->sink);
2058 		ret = -EINVAL;
2059 		goto err;
2060 	}
2061 
2062 	/*
2063 	 * Don't send routes whose sink widget is of type
2064 	 * output or out_drv to the DSP
2065 	 */
2066 	if (sink_swidget->id == snd_soc_dapm_out_drv ||
2067 	    sink_swidget->id == snd_soc_dapm_output)
2068 		goto err;
2069 
2070 	sroute->route = route;
2071 	dobj->private = sroute;
2072 	sroute->src_widget = source_swidget;
2073 	sroute->sink_widget = sink_swidget;
2074 
2075 	/* add route to route list */
2076 	list_add(&sroute->list, &sdev->route_list);
2077 
2078 	return 0;
2079 err:
2080 	kfree(sroute);
2081 	return ret;
2082 }
2083 
2084 /**
2085  * sof_set_pipe_widget - Set pipe_widget for a component
2086  * @sdev: pointer to struct snd_sof_dev
2087  * @pipe_widget: pointer to struct snd_sof_widget of type snd_soc_dapm_scheduler
2088  * @swidget: pointer to struct snd_sof_widget that has the same pipeline ID as @pipe_widget
2089  *
2090  * Return: 0 if successful, -EINVAL on error.
2091  * The function checks if @swidget is associated with any volatile controls. If so, setting
2092  * the dynamic_pipeline_widget is disallowed.
2093  */
2094 static int sof_set_pipe_widget(struct snd_sof_dev *sdev, struct snd_sof_widget *pipe_widget,
2095 			       struct snd_sof_widget *swidget)
2096 {
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 pipe_widget and apply the dynamic_pipeline_widget_flag */
2112 	swidget->pipe_widget = pipe_widget;
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 	int ret;
2127 
2128 	widget_ops = tplg_ops ? tplg_ops->widget : NULL;
2129 
2130 	/* first update all control IPC structures based on the IPC version */
2131 	if (tplg_ops && tplg_ops->control_setup)
2132 		list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
2133 			ret = tplg_ops->control_setup(sdev, scontrol);
2134 			if (ret < 0) {
2135 				dev_err(sdev->dev, "failed updating IPC struct for control %s\n",
2136 					scontrol->name);
2137 				return ret;
2138 			}
2139 		}
2140 
2141 	/*
2142 	 * then update all widget IPC structures. If any of the ipc_setup callbacks fail, the
2143 	 * topology will be removed and all widgets will be unloaded resulting in freeing all
2144 	 * associated memories.
2145 	 */
2146 	list_for_each_entry(swidget, &sdev->widget_list, list) {
2147 		if (widget_ops && widget_ops[swidget->id].ipc_setup) {
2148 			ret = widget_ops[swidget->id].ipc_setup(swidget);
2149 			if (ret < 0) {
2150 				dev_err(sdev->dev, "failed updating IPC struct for %s\n",
2151 					swidget->widget->name);
2152 				return ret;
2153 			}
2154 		}
2155 	}
2156 
2157 	/* set the pipe_widget and apply the dynamic_pipeline_widget_flag */
2158 	list_for_each_entry(swidget, &sdev->widget_list, list) {
2159 		switch (swidget->id) {
2160 		case snd_soc_dapm_scheduler:
2161 			/*
2162 			 * Apply the dynamic_pipeline_widget flag and set the pipe_widget field
2163 			 * for all widgets that have the same pipeline ID as the scheduler widget
2164 			 */
2165 			list_for_each_entry(comp_swidget, &sdev->widget_list, list)
2166 				if (comp_swidget->pipeline_id == swidget->pipeline_id) {
2167 					ret = sof_set_pipe_widget(sdev, swidget, comp_swidget);
2168 					if (ret < 0)
2169 						return ret;
2170 				}
2171 			break;
2172 		default:
2173 			break;
2174 		}
2175 	}
2176 
2177 	/* verify topology components loading including dynamic pipelines */
2178 	if (sof_debug_check_flag(SOF_DBG_VERIFY_TPLG)) {
2179 		if (tplg_ops && tplg_ops->set_up_all_pipelines &&
2180 		    tplg_ops->tear_down_all_pipelines) {
2181 			ret = tplg_ops->set_up_all_pipelines(sdev, true);
2182 			if (ret < 0) {
2183 				dev_err(sdev->dev, "Failed to set up all topology pipelines: %d\n",
2184 					ret);
2185 				return ret;
2186 			}
2187 
2188 			ret = tplg_ops->tear_down_all_pipelines(sdev, true);
2189 			if (ret < 0) {
2190 				dev_err(sdev->dev, "Failed to tear down topology pipelines: %d\n",
2191 					ret);
2192 				return ret;
2193 			}
2194 		}
2195 	}
2196 
2197 	/* set up static pipelines */
2198 	if (tplg_ops && tplg_ops->set_up_all_pipelines)
2199 		return tplg_ops->set_up_all_pipelines(sdev, false);
2200 
2201 	return 0;
2202 }
2203 
2204 /* manifest - optional to inform component of manifest */
2205 static int sof_manifest(struct snd_soc_component *scomp, int index,
2206 			struct snd_soc_tplg_manifest *man)
2207 {
2208 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2209 	const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg);
2210 
2211 	if (tplg_ops && tplg_ops->parse_manifest)
2212 		return tplg_ops->parse_manifest(scomp, index, man);
2213 
2214 	return 0;
2215 }
2216 
2217 /* vendor specific kcontrol handlers available for binding */
2218 static const struct snd_soc_tplg_kcontrol_ops sof_io_ops[] = {
2219 	{SOF_TPLG_KCTL_VOL_ID, snd_sof_volume_get, snd_sof_volume_put},
2220 	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_get, snd_sof_bytes_put},
2221 	{SOF_TPLG_KCTL_ENUM_ID, snd_sof_enum_get, snd_sof_enum_put},
2222 	{SOF_TPLG_KCTL_SWITCH_ID, snd_sof_switch_get, snd_sof_switch_put},
2223 };
2224 
2225 /* vendor specific bytes ext handlers available for binding */
2226 static const struct snd_soc_tplg_bytes_ext_ops sof_bytes_ext_ops[] = {
2227 	{SOF_TPLG_KCTL_BYTES_ID, snd_sof_bytes_ext_get, snd_sof_bytes_ext_put},
2228 	{SOF_TPLG_KCTL_BYTES_VOLATILE_RO, snd_sof_bytes_ext_volatile_get},
2229 };
2230 
2231 static struct snd_soc_tplg_ops sof_tplg_ops = {
2232 	/* external kcontrol init - used for any driver specific init */
2233 	.control_load	= sof_control_load,
2234 	.control_unload	= sof_control_unload,
2235 
2236 	/* external kcontrol init - used for any driver specific init */
2237 	.dapm_route_load	= sof_route_load,
2238 	.dapm_route_unload	= sof_route_unload,
2239 
2240 	/* external widget init - used for any driver specific init */
2241 	/* .widget_load is not currently used */
2242 	.widget_ready	= sof_widget_ready,
2243 	.widget_unload	= sof_widget_unload,
2244 
2245 	/* FE DAI - used for any driver specific init */
2246 	.dai_load	= sof_dai_load,
2247 	.dai_unload	= sof_dai_unload,
2248 
2249 	/* DAI link - used for any driver specific init */
2250 	.link_load	= sof_link_load,
2251 	.link_unload	= sof_link_unload,
2252 
2253 	/* completion - called at completion of firmware loading */
2254 	.complete	= sof_complete,
2255 
2256 	/* manifest - optional to inform component of manifest */
2257 	.manifest	= sof_manifest,
2258 
2259 	/* vendor specific kcontrol handlers available for binding */
2260 	.io_ops		= sof_io_ops,
2261 	.io_ops_count	= ARRAY_SIZE(sof_io_ops),
2262 
2263 	/* vendor specific bytes ext handlers available for binding */
2264 	.bytes_ext_ops	= sof_bytes_ext_ops,
2265 	.bytes_ext_ops_count	= ARRAY_SIZE(sof_bytes_ext_ops),
2266 };
2267 
2268 int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file)
2269 {
2270 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
2271 	const struct firmware *fw;
2272 	int ret;
2273 
2274 	dev_dbg(scomp->dev, "loading topology:%s\n", file);
2275 
2276 	ret = request_firmware(&fw, file, scomp->dev);
2277 	if (ret < 0) {
2278 		dev_err(scomp->dev, "error: tplg request firmware %s failed err: %d\n",
2279 			file, ret);
2280 		dev_err(scomp->dev,
2281 			"you may need to download the firmware from https://github.com/thesofproject/sof-bin/\n");
2282 		return ret;
2283 	}
2284 
2285 	ret = snd_soc_tplg_component_load(scomp, &sof_tplg_ops, fw);
2286 	if (ret < 0) {
2287 		dev_err(scomp->dev, "error: tplg component load failed %d\n",
2288 			ret);
2289 		ret = -EINVAL;
2290 	}
2291 
2292 	release_firmware(fw);
2293 
2294 	if (ret >= 0 && sdev->led_present)
2295 		ret = snd_ctl_led_request();
2296 
2297 	return ret;
2298 }
2299 EXPORT_SYMBOL(snd_sof_load_topology);
2300