1 // SPDX-License-Identifier: GPL-2.0-only
2  /*
3  *  sst-atom-controls.c - Intel MID Platform driver DPCM ALSA controls for Mrfld
4  *
5  *  Copyright (C) 2013-14 Intel Corp
6  *  Author: Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
7  *	Vinod Koul <vinod.koul@intel.com>
8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9  *
10  *  In the dpcm driver modelling when a particular FE/BE/Mixer/Pipe is active
11  *  we forward the settings and parameters, rest we keep the values  in
12  *  driver and forward when DAPM enables them
13  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
14  */
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16 
17 #include <linux/slab.h>
18 #include <sound/soc.h>
19 #include <sound/tlv.h>
20 #include "sst-mfld-platform.h"
21 #include "sst-atom-controls.h"
22 
23 static int sst_fill_byte_control(struct sst_data *drv,
24 					 u8 ipc_msg, u8 block,
25 					 u8 task_id, u8 pipe_id,
26 					 u16 len, void *cmd_data)
27 {
28 	struct snd_sst_bytes_v2 *byte_data = drv->byte_stream;
29 
30 	byte_data->type = SST_CMD_BYTES_SET;
31 	byte_data->ipc_msg = ipc_msg;
32 	byte_data->block = block;
33 	byte_data->task_id = task_id;
34 	byte_data->pipe_id = pipe_id;
35 
36 	if (len > SST_MAX_BIN_BYTES - sizeof(*byte_data)) {
37 		dev_err(&drv->pdev->dev, "command length too big (%u)", len);
38 		return -EINVAL;
39 	}
40 	byte_data->len = len;
41 	memcpy(byte_data->bytes, cmd_data, len);
42 	print_hex_dump_bytes("writing to lpe: ", DUMP_PREFIX_OFFSET,
43 			     byte_data, len + sizeof(*byte_data));
44 	return 0;
45 }
46 
47 static int sst_fill_and_send_cmd_unlocked(struct sst_data *drv,
48 				 u8 ipc_msg, u8 block, u8 task_id, u8 pipe_id,
49 				 void *cmd_data, u16 len)
50 {
51 	int ret = 0;
52 
53 	ret = sst_fill_byte_control(drv, ipc_msg,
54 				block, task_id, pipe_id, len, cmd_data);
55 	if (ret < 0)
56 		return ret;
57 	return sst->ops->send_byte_stream(sst->dev, drv->byte_stream);
58 }
59 
60 /**
61  * sst_fill_and_send_cmd - generate the IPC message and send it to the FW
62  * @ipc_msg:	type of IPC (CMD, SET_PARAMS, GET_PARAMS)
63  * @cmd_data:	the IPC payload
64  */
65 static int sst_fill_and_send_cmd(struct sst_data *drv,
66 				 u8 ipc_msg, u8 block, u8 task_id, u8 pipe_id,
67 				 void *cmd_data, u16 len)
68 {
69 	int ret;
70 
71 	mutex_lock(&drv->lock);
72 	ret = sst_fill_and_send_cmd_unlocked(drv, ipc_msg, block,
73 					task_id, pipe_id, cmd_data, len);
74 	mutex_unlock(&drv->lock);
75 
76 	return ret;
77 }
78 
79 /**
80  * tx map value is a bitfield where each bit represents a FW channel
81  *
82  *			3 2 1 0		# 0 = codec0, 1 = codec1
83  *			RLRLRLRL	# 3, 4 = reserved
84  *
85  * e.g. slot 0 rx map =	00001100b -> data from slot 0 goes into codec_in1 L,R
86  */
87 static u8 sst_ssp_tx_map[SST_MAX_TDM_SLOTS] = {
88 	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default rx map */
89 };
90 
91 /**
92  * rx map value is a bitfield where each bit represents a slot
93  *
94  *			  76543210	# 0 = slot 0, 1 = slot 1
95  *
96  * e.g. codec1_0 tx map = 00000101b -> data from codec_out1_0 goes into slot 0, 2
97  */
98 static u8 sst_ssp_rx_map[SST_MAX_TDM_SLOTS] = {
99 	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default tx map */
100 };
101 
102 /**
103  * NOTE: this is invoked with lock held
104  */
105 static int sst_send_slot_map(struct sst_data *drv)
106 {
107 	struct sst_param_sba_ssp_slot_map cmd;
108 
109 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
110 	cmd.header.command_id = SBA_SET_SSP_SLOT_MAP;
111 	cmd.header.length = sizeof(struct sst_param_sba_ssp_slot_map)
112 				- sizeof(struct sst_dsp_header);
113 
114 	cmd.param_id = SBA_SET_SSP_SLOT_MAP;
115 	cmd.param_len = sizeof(cmd.rx_slot_map) + sizeof(cmd.tx_slot_map)
116 					+ sizeof(cmd.ssp_index);
117 	cmd.ssp_index = SSP_CODEC;
118 
119 	memcpy(cmd.rx_slot_map, &sst_ssp_tx_map[0], sizeof(cmd.rx_slot_map));
120 	memcpy(cmd.tx_slot_map, &sst_ssp_rx_map[0], sizeof(cmd.tx_slot_map));
121 
122 	return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
123 			SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
124 			      sizeof(cmd.header) + cmd.header.length);
125 }
126 
127 static int sst_slot_enum_info(struct snd_kcontrol *kcontrol,
128 		       struct snd_ctl_elem_info *uinfo)
129 {
130 	struct sst_enum *e = (struct sst_enum *)kcontrol->private_value;
131 
132 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
133 	uinfo->count = 1;
134 	uinfo->value.enumerated.items = e->max;
135 
136 	if (uinfo->value.enumerated.item > e->max - 1)
137 		uinfo->value.enumerated.item = e->max - 1;
138 	strcpy(uinfo->value.enumerated.name,
139 		e->texts[uinfo->value.enumerated.item]);
140 
141 	return 0;
142 }
143 
144 /**
145  * sst_slot_get - get the status of the interleaver/deinterleaver control
146  *
147  * Searches the map where the control status is stored, and gets the
148  * channel/slot which is currently set for this enumerated control. Since it is
149  * an enumerated control, there is only one possible value.
150  */
151 static int sst_slot_get(struct snd_kcontrol *kcontrol,
152 			struct snd_ctl_elem_value *ucontrol)
153 {
154 	struct sst_enum *e = (void *)kcontrol->private_value;
155 	struct snd_soc_component *c = snd_kcontrol_chip(kcontrol);
156 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
157 	unsigned int ctl_no = e->reg;
158 	unsigned int is_tx = e->tx;
159 	unsigned int val, mux;
160 	u8 *map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;
161 
162 	mutex_lock(&drv->lock);
163 	val = 1 << ctl_no;
164 	/* search which slot/channel has this bit set - there should be only one */
165 	for (mux = e->max; mux > 0;  mux--)
166 		if (map[mux - 1] & val)
167 			break;
168 
169 	ucontrol->value.enumerated.item[0] = mux;
170 	mutex_unlock(&drv->lock);
171 
172 	dev_dbg(c->dev, "%s - %s map = %#x\n",
173 			is_tx ? "tx channel" : "rx slot",
174 			 e->texts[mux], mux ? map[mux - 1] : -1);
175 	return 0;
176 }
177 
178 /* sst_check_and_send_slot_map - helper for checking power state and sending
179  * slot map cmd
180  *
181  * called with lock held
182  */
183 static int sst_check_and_send_slot_map(struct sst_data *drv, struct snd_kcontrol *kcontrol)
184 {
185 	struct sst_enum *e = (void *)kcontrol->private_value;
186 	int ret = 0;
187 
188 	if (e->w && e->w->power)
189 		ret = sst_send_slot_map(drv);
190 	else if (!e->w)
191 		dev_err(&drv->pdev->dev, "Slot control: %s doesn't have DAPM widget!!!\n",
192 				kcontrol->id.name);
193 	return ret;
194 }
195 
196 /**
197  * sst_slot_put - set the status of interleaver/deinterleaver control
198  *
199  * (de)interleaver controls are defined in opposite sense to be user-friendly
200  *
201  * Instead of the enum value being the value written to the register, it is the
202  * register address; and the kcontrol number (register num) is the value written
203  * to the register. This is so that there can be only one value for each
204  * slot/channel since there is only one control for each slot/channel.
205  *
206  * This means that whenever an enum is set, we need to clear the bit
207  * for that kcontrol_no for all the interleaver OR deinterleaver registers
208  */
209 static int sst_slot_put(struct snd_kcontrol *kcontrol,
210 			struct snd_ctl_elem_value *ucontrol)
211 {
212 	struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
213 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
214 	struct sst_enum *e = (void *)kcontrol->private_value;
215 	int i, ret = 0;
216 	unsigned int ctl_no = e->reg;
217 	unsigned int is_tx = e->tx;
218 	unsigned int slot_channel_no;
219 	unsigned int val, mux;
220 	u8 *map;
221 
222 	map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;
223 
224 	val = 1 << ctl_no;
225 	mux = ucontrol->value.enumerated.item[0];
226 	if (mux > e->max - 1)
227 		return -EINVAL;
228 
229 	mutex_lock(&drv->lock);
230 	/* first clear all registers of this bit */
231 	for (i = 0; i < e->max; i++)
232 		map[i] &= ~val;
233 
234 	if (mux == 0) {
235 		/* kctl set to 'none' and we reset the bits so send IPC */
236 		ret = sst_check_and_send_slot_map(drv, kcontrol);
237 
238 		mutex_unlock(&drv->lock);
239 		return ret;
240 	}
241 
242 	/* offset by one to take "None" into account */
243 	slot_channel_no = mux - 1;
244 	map[slot_channel_no] |= val;
245 
246 	dev_dbg(c->dev, "%s %s map = %#x\n",
247 			is_tx ? "tx channel" : "rx slot",
248 			e->texts[mux], map[slot_channel_no]);
249 
250 	ret = sst_check_and_send_slot_map(drv, kcontrol);
251 
252 	mutex_unlock(&drv->lock);
253 	return ret;
254 }
255 
256 static int sst_send_algo_cmd(struct sst_data *drv,
257 			      struct sst_algo_control *bc)
258 {
259 	int len, ret = 0;
260 	struct sst_cmd_set_params *cmd;
261 
262 	/*bc->max includes sizeof algos + length field*/
263 	len = sizeof(cmd->dst) + sizeof(cmd->command_id) + bc->max;
264 
265 	cmd = kzalloc(len, GFP_KERNEL);
266 	if (cmd == NULL)
267 		return -ENOMEM;
268 
269 	SST_FILL_DESTINATION(2, cmd->dst, bc->pipe_id, bc->module_id);
270 	cmd->command_id = bc->cmd_id;
271 	memcpy(cmd->params, bc->params, bc->max);
272 
273 	ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
274 				SST_FLAG_BLOCKED, bc->task_id, 0, cmd, len);
275 	kfree(cmd);
276 	return ret;
277 }
278 
279 /**
280  * sst_find_and_send_pipe_algo - send all the algo parameters for a pipe
281  *
282  * The algos which are in each pipeline are sent to the firmware one by one
283  *
284  * Called with lock held
285  */
286 static int sst_find_and_send_pipe_algo(struct sst_data *drv,
287 					const char *pipe, struct sst_ids *ids)
288 {
289 	int ret = 0;
290 	struct sst_algo_control *bc;
291 	struct sst_module *algo = NULL;
292 
293 	dev_dbg(&drv->pdev->dev, "Enter: widget=%s\n", pipe);
294 
295 	list_for_each_entry(algo, &ids->algo_list, node) {
296 		bc = (void *)algo->kctl->private_value;
297 
298 		dev_dbg(&drv->pdev->dev, "Found algo control name=%s pipe=%s\n",
299 				algo->kctl->id.name, pipe);
300 		ret = sst_send_algo_cmd(drv, bc);
301 		if (ret)
302 			return ret;
303 	}
304 	return ret;
305 }
306 
307 static int sst_algo_bytes_ctl_info(struct snd_kcontrol *kcontrol,
308 			    struct snd_ctl_elem_info *uinfo)
309 {
310 	struct sst_algo_control *bc = (void *)kcontrol->private_value;
311 
312 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
313 	uinfo->count = bc->max;
314 
315 	return 0;
316 }
317 
318 static int sst_algo_control_get(struct snd_kcontrol *kcontrol,
319 				struct snd_ctl_elem_value *ucontrol)
320 {
321 	struct sst_algo_control *bc = (void *)kcontrol->private_value;
322 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
323 
324 	switch (bc->type) {
325 	case SST_ALGO_PARAMS:
326 		memcpy(ucontrol->value.bytes.data, bc->params, bc->max);
327 		break;
328 	default:
329 		dev_err(component->dev, "Invalid Input- algo type:%d\n",
330 				bc->type);
331 		return -EINVAL;
332 
333 	}
334 	return 0;
335 }
336 
337 static int sst_algo_control_set(struct snd_kcontrol *kcontrol,
338 				struct snd_ctl_elem_value *ucontrol)
339 {
340 	int ret = 0;
341 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
342 	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
343 	struct sst_algo_control *bc = (void *)kcontrol->private_value;
344 
345 	dev_dbg(cmpnt->dev, "control_name=%s\n", kcontrol->id.name);
346 	mutex_lock(&drv->lock);
347 	switch (bc->type) {
348 	case SST_ALGO_PARAMS:
349 		memcpy(bc->params, ucontrol->value.bytes.data, bc->max);
350 		break;
351 	default:
352 		mutex_unlock(&drv->lock);
353 		dev_err(cmpnt->dev, "Invalid Input- algo type:%d\n",
354 				bc->type);
355 		return -EINVAL;
356 	}
357 	/*if pipe is enabled, need to send the algo params from here*/
358 	if (bc->w && bc->w->power)
359 		ret = sst_send_algo_cmd(drv, bc);
360 	mutex_unlock(&drv->lock);
361 
362 	return ret;
363 }
364 
365 static int sst_gain_ctl_info(struct snd_kcontrol *kcontrol,
366 	struct snd_ctl_elem_info *uinfo)
367 {
368 	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
369 
370 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
371 	uinfo->count = mc->stereo ? 2 : 1;
372 	uinfo->value.integer.min = mc->min;
373 	uinfo->value.integer.max = mc->max;
374 
375 	return 0;
376 }
377 
378 /**
379  * sst_send_gain_cmd - send the gain algorithm IPC to the FW
380  * @gv:		the stored value of gain (also contains rampduration)
381  * @mute:	flag that indicates whether this was called from the
382  *		digital_mute callback or directly. If called from the
383  *		digital_mute callback, module will be muted/unmuted based on this
384  *		flag. The flag is always 0 if called directly.
385  *
386  * Called with sst_data.lock held
387  *
388  * The user-set gain value is sent only if the user-controllable 'mute' control
389  * is OFF (indicated by gv->mute). Otherwise, the mute value (MIN value) is
390  * sent.
391  */
392 static int sst_send_gain_cmd(struct sst_data *drv, struct sst_gain_value *gv,
393 			      u16 task_id, u16 loc_id, u16 module_id, int mute)
394 {
395 	struct sst_cmd_set_gain_dual cmd;
396 
397 	dev_dbg(&drv->pdev->dev, "Enter\n");
398 
399 	cmd.header.command_id = MMX_SET_GAIN;
400 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
401 	cmd.gain_cell_num = 1;
402 
403 	if (mute || gv->mute) {
404 		cmd.cell_gains[0].cell_gain_left = SST_GAIN_MIN_VALUE;
405 		cmd.cell_gains[0].cell_gain_right = SST_GAIN_MIN_VALUE;
406 	} else {
407 		cmd.cell_gains[0].cell_gain_left = gv->l_gain;
408 		cmd.cell_gains[0].cell_gain_right = gv->r_gain;
409 	}
410 
411 	SST_FILL_DESTINATION(2, cmd.cell_gains[0].dest,
412 			     loc_id, module_id);
413 	cmd.cell_gains[0].gain_time_constant = gv->ramp_duration;
414 
415 	cmd.header.length = sizeof(struct sst_cmd_set_gain_dual)
416 				- sizeof(struct sst_dsp_header);
417 
418 	/* we are with lock held, so call the unlocked api  to send */
419 	return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
420 				SST_FLAG_BLOCKED, task_id, 0, &cmd,
421 			      sizeof(cmd.header) + cmd.header.length);
422 }
423 
424 static int sst_gain_get(struct snd_kcontrol *kcontrol,
425 			struct snd_ctl_elem_value *ucontrol)
426 {
427 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
428 	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
429 	struct sst_gain_value *gv = mc->gain_val;
430 
431 	switch (mc->type) {
432 	case SST_GAIN_TLV:
433 		ucontrol->value.integer.value[0] = gv->l_gain;
434 		ucontrol->value.integer.value[1] = gv->r_gain;
435 		break;
436 
437 	case SST_GAIN_MUTE:
438 		ucontrol->value.integer.value[0] = gv->mute ? 0 : 1;
439 		break;
440 
441 	case SST_GAIN_RAMP_DURATION:
442 		ucontrol->value.integer.value[0] = gv->ramp_duration;
443 		break;
444 
445 	default:
446 		dev_err(component->dev, "Invalid Input- gain type:%d\n",
447 				mc->type);
448 		return -EINVAL;
449 	}
450 
451 	return 0;
452 }
453 
454 static int sst_gain_put(struct snd_kcontrol *kcontrol,
455 			struct snd_ctl_elem_value *ucontrol)
456 {
457 	int ret = 0;
458 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
459 	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
460 	struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
461 	struct sst_gain_value *gv = mc->gain_val;
462 
463 	mutex_lock(&drv->lock);
464 
465 	switch (mc->type) {
466 	case SST_GAIN_TLV:
467 		gv->l_gain = ucontrol->value.integer.value[0];
468 		gv->r_gain = ucontrol->value.integer.value[1];
469 		dev_dbg(cmpnt->dev, "%s: Volume %d, %d\n",
470 				mc->pname, gv->l_gain, gv->r_gain);
471 		break;
472 
473 	case SST_GAIN_MUTE:
474 		gv->mute = !ucontrol->value.integer.value[0];
475 		dev_dbg(cmpnt->dev, "%s: Mute %d\n", mc->pname, gv->mute);
476 		break;
477 
478 	case SST_GAIN_RAMP_DURATION:
479 		gv->ramp_duration = ucontrol->value.integer.value[0];
480 		dev_dbg(cmpnt->dev, "%s: Ramp Delay%d\n",
481 					mc->pname, gv->ramp_duration);
482 		break;
483 
484 	default:
485 		mutex_unlock(&drv->lock);
486 		dev_err(cmpnt->dev, "Invalid Input- gain type:%d\n",
487 				mc->type);
488 		return -EINVAL;
489 	}
490 
491 	if (mc->w && mc->w->power)
492 		ret = sst_send_gain_cmd(drv, gv, mc->task_id,
493 			mc->pipe_id | mc->instance_id, mc->module_id, 0);
494 	mutex_unlock(&drv->lock);
495 
496 	return ret;
497 }
498 
499 static int sst_set_pipe_gain(struct sst_ids *ids,
500 				struct sst_data *drv, int mute);
501 
502 static int sst_send_pipe_module_params(struct snd_soc_dapm_widget *w,
503 		struct snd_kcontrol *kcontrol)
504 {
505 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
506 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
507 	struct sst_ids *ids = w->priv;
508 
509 	mutex_lock(&drv->lock);
510 	sst_find_and_send_pipe_algo(drv, w->name, ids);
511 	sst_set_pipe_gain(ids, drv, 0);
512 	mutex_unlock(&drv->lock);
513 
514 	return 0;
515 }
516 
517 static int sst_generic_modules_event(struct snd_soc_dapm_widget *w,
518 				     struct snd_kcontrol *k, int event)
519 {
520 	if (SND_SOC_DAPM_EVENT_ON(event))
521 		return sst_send_pipe_module_params(w, k);
522 	return 0;
523 }
524 
525 static const DECLARE_TLV_DB_SCALE(sst_gain_tlv_common, SST_GAIN_MIN_VALUE * 10, 10, 0);
526 
527 /* Look up table to convert MIXER SW bit regs to SWM inputs */
528 static const uint swm_mixer_input_ids[SST_SWM_INPUT_COUNT] = {
529 	[SST_IP_MODEM]		= SST_SWM_IN_MODEM,
530 	[SST_IP_CODEC0]		= SST_SWM_IN_CODEC0,
531 	[SST_IP_CODEC1]		= SST_SWM_IN_CODEC1,
532 	[SST_IP_LOOP0]		= SST_SWM_IN_SPROT_LOOP,
533 	[SST_IP_LOOP1]		= SST_SWM_IN_MEDIA_LOOP1,
534 	[SST_IP_LOOP2]		= SST_SWM_IN_MEDIA_LOOP2,
535 	[SST_IP_PCM0]		= SST_SWM_IN_PCM0,
536 	[SST_IP_PCM1]		= SST_SWM_IN_PCM1,
537 	[SST_IP_MEDIA0]		= SST_SWM_IN_MEDIA0,
538 	[SST_IP_MEDIA1]		= SST_SWM_IN_MEDIA1,
539 	[SST_IP_MEDIA2]		= SST_SWM_IN_MEDIA2,
540 	[SST_IP_MEDIA3]		= SST_SWM_IN_MEDIA3,
541 };
542 
543 /**
544  * fill_swm_input - fill in the SWM input ids given the register
545  *
546  * The register value is a bit-field inicated which mixer inputs are ON. Use the
547  * lookup table to get the input-id and fill it in the structure.
548  */
549 static int fill_swm_input(struct snd_soc_component *cmpnt,
550 		struct swm_input_ids *swm_input, unsigned int reg)
551 {
552 	uint i, is_set, nb_inputs = 0;
553 	u16 input_loc_id;
554 
555 	dev_dbg(cmpnt->dev, "reg: %#x\n", reg);
556 	for (i = 0; i < SST_SWM_INPUT_COUNT; i++) {
557 		is_set = reg & BIT(i);
558 		if (!is_set)
559 			continue;
560 
561 		input_loc_id = swm_mixer_input_ids[i];
562 		SST_FILL_DESTINATION(2, swm_input->input_id,
563 				     input_loc_id, SST_DEFAULT_MODULE_ID);
564 		nb_inputs++;
565 		swm_input++;
566 		dev_dbg(cmpnt->dev, "input id: %#x, nb_inputs: %d\n",
567 				input_loc_id, nb_inputs);
568 
569 		if (nb_inputs == SST_CMD_SWM_MAX_INPUTS) {
570 			dev_warn(cmpnt->dev, "SET_SWM cmd max inputs reached");
571 			break;
572 		}
573 	}
574 	return nb_inputs;
575 }
576 
577 
578 /**
579  * called with lock held
580  */
581 static int sst_set_pipe_gain(struct sst_ids *ids,
582 			struct sst_data *drv, int mute)
583 {
584 	int ret = 0;
585 	struct sst_gain_mixer_control *mc;
586 	struct sst_gain_value *gv;
587 	struct sst_module *gain = NULL;
588 
589 	list_for_each_entry(gain, &ids->gain_list, node) {
590 		struct snd_kcontrol *kctl = gain->kctl;
591 
592 		dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);
593 		mc = (void *)kctl->private_value;
594 		gv = mc->gain_val;
595 
596 		ret = sst_send_gain_cmd(drv, gv, mc->task_id,
597 			mc->pipe_id | mc->instance_id, mc->module_id, mute);
598 		if (ret)
599 			return ret;
600 	}
601 	return ret;
602 }
603 
604 static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
605 			struct snd_kcontrol *k, int event)
606 {
607 	struct sst_cmd_set_swm cmd;
608 	struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
609 	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
610 	struct sst_ids *ids = w->priv;
611 	bool set_mixer = false;
612 	struct soc_mixer_control *mc;
613 	int val = 0;
614 	int i = 0;
615 
616 	dev_dbg(cmpnt->dev, "widget = %s\n", w->name);
617 	/*
618 	 * Identify which mixer input is on and send the bitmap of the
619 	 * inputs as an IPC to the DSP.
620 	 */
621 	for (i = 0; i < w->num_kcontrols; i++) {
622 		if (dapm_kcontrol_get_value(w->kcontrols[i])) {
623 			mc = (struct soc_mixer_control *)(w->kcontrols[i])->private_value;
624 			val |= 1 << mc->shift;
625 		}
626 	}
627 	dev_dbg(cmpnt->dev, "val = %#x\n", val);
628 
629 	switch (event) {
630 	case SND_SOC_DAPM_PRE_PMU:
631 	case SND_SOC_DAPM_POST_PMD:
632 		set_mixer = true;
633 		break;
634 	case SND_SOC_DAPM_POST_REG:
635 		if (w->power)
636 			set_mixer = true;
637 		break;
638 	default:
639 		set_mixer = false;
640 	}
641 
642 	if (!set_mixer)
643 		return 0;
644 
645 	if (SND_SOC_DAPM_EVENT_ON(event) ||
646 	    event == SND_SOC_DAPM_POST_REG)
647 		cmd.switch_state = SST_SWM_ON;
648 	else
649 		cmd.switch_state = SST_SWM_OFF;
650 
651 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
652 	/* MMX_SET_SWM == SBA_SET_SWM */
653 	cmd.header.command_id = SBA_SET_SWM;
654 
655 	SST_FILL_DESTINATION(2, cmd.output_id,
656 			     ids->location_id, SST_DEFAULT_MODULE_ID);
657 	cmd.nb_inputs =	fill_swm_input(cmpnt, &cmd.input[0], val);
658 	cmd.header.length = offsetof(struct sst_cmd_set_swm, input)
659 				- sizeof(struct sst_dsp_header)
660 				+ (cmd.nb_inputs * sizeof(cmd.input[0]));
661 
662 	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
663 			      ids->task_id, 0, &cmd,
664 			      sizeof(cmd.header) + cmd.header.length);
665 }
666 
667 /* SBA mixers - 16 inputs */
668 #define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)							\
669 	static const struct snd_kcontrol_new kctl_name[] = {					\
670 		SOC_DAPM_SINGLE("modem_in Switch", SND_SOC_NOPM, SST_IP_MODEM, 1, 0),		\
671 		SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),		\
672 		SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),		\
673 		SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),	\
674 		SOC_DAPM_SINGLE("media_loop1_in Switch", SND_SOC_NOPM, SST_IP_LOOP1, 1, 0),	\
675 		SOC_DAPM_SINGLE("media_loop2_in Switch", SND_SOC_NOPM, SST_IP_LOOP2, 1, 0),	\
676 		SOC_DAPM_SINGLE("pcm0_in Switch", SND_SOC_NOPM, SST_IP_PCM0, 1, 0),		\
677 		SOC_DAPM_SINGLE("pcm1_in Switch", SND_SOC_NOPM, SST_IP_PCM1, 1, 0),		\
678 	}
679 
680 #define SST_SBA_MIXER_GRAPH_MAP(mix_name)			\
681 	{ mix_name, "modem_in Switch",	"modem_in" },		\
682 	{ mix_name, "codec_in0 Switch",	"codec_in0" },		\
683 	{ mix_name, "codec_in1 Switch",	"codec_in1" },		\
684 	{ mix_name, "sprot_loop_in Switch",	"sprot_loop_in" },	\
685 	{ mix_name, "media_loop1_in Switch",	"media_loop1_in" },	\
686 	{ mix_name, "media_loop2_in Switch",	"media_loop2_in" },	\
687 	{ mix_name, "pcm0_in Switch",		"pcm0_in" },		\
688 	{ mix_name, "pcm1_in Switch",		"pcm1_in" }
689 
690 #define SST_MMX_DECLARE_MIX_CONTROLS(kctl_name)						\
691 	static const struct snd_kcontrol_new kctl_name[] = {				\
692 		SOC_DAPM_SINGLE("media0_in Switch", SND_SOC_NOPM, SST_IP_MEDIA0, 1, 0),	\
693 		SOC_DAPM_SINGLE("media1_in Switch", SND_SOC_NOPM, SST_IP_MEDIA1, 1, 0),	\
694 		SOC_DAPM_SINGLE("media2_in Switch", SND_SOC_NOPM, SST_IP_MEDIA2, 1, 0),	\
695 		SOC_DAPM_SINGLE("media3_in Switch", SND_SOC_NOPM, SST_IP_MEDIA3, 1, 0),	\
696 	}
697 
698 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media0_controls);
699 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media1_controls);
700 
701 /* 18 SBA mixers */
702 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm0_controls);
703 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm1_controls);
704 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm2_controls);
705 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_sprot_l0_controls);
706 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l1_controls);
707 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
708 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
709 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
710 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);
711 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_modem_controls);
712 
713 /*
714  * sst_handle_vb_timer - Start/Stop the DSP scheduler
715  *
716  * The DSP expects first cmd to be SBA_VB_START, so at first startup send
717  * that.
718  * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.
719  *
720  * Do refcount internally so that we send command only at first start
721  * and last end. Since SST driver does its own ref count, invoke sst's
722  * power ops always!
723  */
724 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)
725 {
726 	int ret = 0;
727 	struct sst_cmd_generic cmd;
728 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
729 	static int timer_usage;
730 
731 	if (enable)
732 		cmd.header.command_id = SBA_VB_START;
733 	else
734 		cmd.header.command_id = SBA_IDLE;
735 	dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);
736 
737 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
738 	cmd.header.length = 0;
739 
740 	if (enable) {
741 		ret = sst->ops->power(sst->dev, true);
742 		if (ret < 0)
743 			return ret;
744 	}
745 
746 	mutex_lock(&drv->lock);
747 	if (enable)
748 		timer_usage++;
749 	else
750 		timer_usage--;
751 
752 	/*
753 	 * Send the command only if this call is the first enable or last
754 	 * disable
755 	 */
756 	if ((enable && (timer_usage == 1)) ||
757 	    (!enable && (timer_usage == 0))) {
758 		ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,
759 				SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
760 				sizeof(cmd.header) + cmd.header.length);
761 		if (ret && enable) {
762 			timer_usage--;
763 			enable  = false;
764 		}
765 	}
766 	mutex_unlock(&drv->lock);
767 
768 	if (!enable)
769 		sst->ops->power(sst->dev, false);
770 	return ret;
771 }
772 
773 int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
774 		unsigned int rx_mask, int slots, int slot_width)
775 {
776 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
777 
778 	ctx->ssp_cmd.nb_slots = slots;
779 	ctx->ssp_cmd.active_tx_slot_map = tx_mask;
780 	ctx->ssp_cmd.active_rx_slot_map = rx_mask;
781 	ctx->ssp_cmd.nb_bits_per_slots = slot_width;
782 
783 	return 0;
784 }
785 
786 static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,
787 		unsigned int fmt)
788 {
789 	int format;
790 
791 	format = fmt & SND_SOC_DAIFMT_INV_MASK;
792 	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
793 
794 	switch (format) {
795 	case SND_SOC_DAIFMT_NB_NF:
796 	case SND_SOC_DAIFMT_IB_NF:
797 		return SSP_FS_ACTIVE_HIGH;
798 	case SND_SOC_DAIFMT_NB_IF:
799 	case SND_SOC_DAIFMT_IB_IF:
800 		return SSP_FS_ACTIVE_LOW;
801 	default:
802 		dev_err(dai->dev, "Invalid frame sync polarity %d\n", format);
803 	}
804 
805 	return -EINVAL;
806 }
807 
808 static int sst_get_ssp_mode(struct snd_soc_dai *dai, unsigned int fmt)
809 {
810 	int format;
811 
812 	format = (fmt & SND_SOC_DAIFMT_MASTER_MASK);
813 	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
814 
815 	switch (format) {
816 	case SND_SOC_DAIFMT_CBS_CFS:
817 		return SSP_MODE_MASTER;
818 	case SND_SOC_DAIFMT_CBM_CFM:
819 		return SSP_MODE_SLAVE;
820 	default:
821 		dev_err(dai->dev, "Invalid ssp protocol: %d\n", format);
822 	}
823 
824 	return -EINVAL;
825 }
826 
827 
828 int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt)
829 {
830 	unsigned int mode;
831 	int fs_polarity;
832 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
833 
834 	mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
835 
836 	switch (mode) {
837 	case SND_SOC_DAIFMT_DSP_B:
838 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
839 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
840 		ctx->ssp_cmd.start_delay = 0;
841 		ctx->ssp_cmd.data_polarity = 1;
842 		ctx->ssp_cmd.frame_sync_width = 1;
843 		break;
844 
845 	case SND_SOC_DAIFMT_DSP_A:
846 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
847 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
848 		ctx->ssp_cmd.start_delay = 1;
849 		ctx->ssp_cmd.data_polarity = 1;
850 		ctx->ssp_cmd.frame_sync_width = 1;
851 		break;
852 
853 	case SND_SOC_DAIFMT_I2S:
854 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
855 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
856 		ctx->ssp_cmd.start_delay = 1;
857 		ctx->ssp_cmd.data_polarity = 0;
858 		ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
859 		break;
860 
861 	case SND_SOC_DAIFMT_LEFT_J:
862 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
863 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
864 		ctx->ssp_cmd.start_delay = 0;
865 		ctx->ssp_cmd.data_polarity = 0;
866 		ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
867 		break;
868 
869 	default:
870 		dev_dbg(dai->dev, "using default ssp configs\n");
871 	}
872 
873 	fs_polarity = sst_get_frame_sync_polarity(dai, fmt);
874 	if (fs_polarity < 0)
875 		return fs_polarity;
876 
877 	ctx->ssp_cmd.frame_sync_polarity = fs_polarity;
878 
879 	return 0;
880 }
881 
882 /**
883  * sst_ssp_config - contains SSP configuration for media UC
884  * this can be overwritten by set_dai_xxx APIs
885  */
886 static const struct sst_ssp_config sst_ssp_configs = {
887 	.ssp_id = SSP_CODEC,
888 	.bits_per_slot = 24,
889 	.slots = 4,
890 	.ssp_mode = SSP_MODE_MASTER,
891 	.pcm_mode = SSP_PCM_MODE_NETWORK,
892 	.duplex = SSP_DUPLEX,
893 	.ssp_protocol = SSP_MODE_PCM,
894 	.fs_width = 1,
895 	.fs_frequency = SSP_FS_48_KHZ,
896 	.active_slot_map = 0xF,
897 	.start_delay = 0,
898 	.frame_sync_polarity = SSP_FS_ACTIVE_HIGH,
899 	.data_polarity = 1,
900 };
901 
902 void sst_fill_ssp_defaults(struct snd_soc_dai *dai)
903 {
904 	const struct sst_ssp_config *config;
905 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
906 
907 	config = &sst_ssp_configs;
908 
909 	ctx->ssp_cmd.selection = config->ssp_id;
910 	ctx->ssp_cmd.nb_bits_per_slots = config->bits_per_slot;
911 	ctx->ssp_cmd.nb_slots = config->slots;
912 	ctx->ssp_cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
913 	ctx->ssp_cmd.duplex = config->duplex;
914 	ctx->ssp_cmd.active_tx_slot_map = config->active_slot_map;
915 	ctx->ssp_cmd.active_rx_slot_map = config->active_slot_map;
916 	ctx->ssp_cmd.frame_sync_frequency = config->fs_frequency;
917 	ctx->ssp_cmd.frame_sync_polarity = config->frame_sync_polarity;
918 	ctx->ssp_cmd.data_polarity = config->data_polarity;
919 	ctx->ssp_cmd.frame_sync_width = config->fs_width;
920 	ctx->ssp_cmd.ssp_protocol = config->ssp_protocol;
921 	ctx->ssp_cmd.start_delay = config->start_delay;
922 	ctx->ssp_cmd.reserved1 = ctx->ssp_cmd.reserved2 = 0xFF;
923 }
924 
925 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
926 {
927 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
928 	int ssp_id;
929 
930 	dev_dbg(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);
931 
932 	if (strcmp(id, "ssp0-port") == 0)
933 		ssp_id = SSP_MODEM;
934 	else if (strcmp(id, "ssp2-port") == 0)
935 		ssp_id = SSP_CODEC;
936 	else {
937 		dev_dbg(dai->dev, "port %s is not supported\n", id);
938 		return -1;
939 	}
940 
941 	SST_FILL_DEFAULT_DESTINATION(drv->ssp_cmd.header.dst);
942 	drv->ssp_cmd.header.command_id = SBA_HW_SET_SSP;
943 	drv->ssp_cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
944 				- sizeof(struct sst_dsp_header);
945 
946 	drv->ssp_cmd.selection = ssp_id;
947 	dev_dbg(dai->dev, "ssp_id: %u\n", ssp_id);
948 
949 	if (enable)
950 		drv->ssp_cmd.switch_state = SST_SWITCH_ON;
951 	else
952 		drv->ssp_cmd.switch_state = SST_SWITCH_OFF;
953 
954 	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
955 				SST_TASK_SBA, 0, &drv->ssp_cmd,
956 				sizeof(drv->ssp_cmd.header) + drv->ssp_cmd.header.length);
957 }
958 
959 static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
960 			 struct snd_kcontrol *k, int event)
961 {
962 	int ret = 0;
963 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
964 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
965 
966 	dev_dbg(c->dev, "Enter: widget=%s\n", w->name);
967 
968 	if (SND_SOC_DAPM_EVENT_ON(event)) {
969 		ret = sst_send_slot_map(drv);
970 		if (ret)
971 			return ret;
972 		ret = sst_send_pipe_module_params(w, k);
973 	}
974 	return ret;
975 }
976 
977 static int sst_set_media_path(struct snd_soc_dapm_widget *w,
978 			      struct snd_kcontrol *k, int event)
979 {
980 	int ret = 0;
981 	struct sst_cmd_set_media_path cmd;
982 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
983 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
984 	struct sst_ids *ids = w->priv;
985 
986 	dev_dbg(c->dev, "widget=%s\n", w->name);
987 	dev_dbg(c->dev, "task=%u, location=%#x\n",
988 				ids->task_id, ids->location_id);
989 
990 	if (SND_SOC_DAPM_EVENT_ON(event))
991 		cmd.switch_state = SST_PATH_ON;
992 	else
993 		cmd.switch_state = SST_PATH_OFF;
994 
995 	SST_FILL_DESTINATION(2, cmd.header.dst,
996 			     ids->location_id, SST_DEFAULT_MODULE_ID);
997 
998 	/* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
999 	cmd.header.command_id = MMX_SET_MEDIA_PATH;
1000 	cmd.header.length = sizeof(struct sst_cmd_set_media_path)
1001 				- sizeof(struct sst_dsp_header);
1002 
1003 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1004 			      ids->task_id, 0, &cmd,
1005 			      sizeof(cmd.header) + cmd.header.length);
1006 	if (ret)
1007 		return ret;
1008 
1009 	if (SND_SOC_DAPM_EVENT_ON(event))
1010 		ret = sst_send_pipe_module_params(w, k);
1011 	return ret;
1012 }
1013 
1014 static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
1015 			struct snd_kcontrol *k, int event)
1016 {
1017 	int ret = 0;
1018 	struct sst_cmd_sba_set_media_loop_map cmd;
1019 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1020 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
1021 	struct sst_ids *ids = w->priv;
1022 
1023 	dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
1024 	if (SND_SOC_DAPM_EVENT_ON(event))
1025 		cmd.switch_state = SST_SWITCH_ON;
1026 	else
1027 		cmd.switch_state = SST_SWITCH_OFF;
1028 
1029 	SST_FILL_DESTINATION(2, cmd.header.dst,
1030 			     ids->location_id, SST_DEFAULT_MODULE_ID);
1031 
1032 	cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
1033 	cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
1034 				 - sizeof(struct sst_dsp_header);
1035 	cmd.param.part.cfg.rate = 2; /* 48khz */
1036 
1037 	cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
1038 	cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
1039 	cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */
1040 
1041 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1042 			      SST_TASK_SBA, 0, &cmd,
1043 			      sizeof(cmd.header) + cmd.header.length);
1044 	if (ret)
1045 		return ret;
1046 
1047 	if (SND_SOC_DAPM_EVENT_ON(event))
1048 		ret = sst_send_pipe_module_params(w, k);
1049 	return ret;
1050 }
1051 
1052 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
1053 	SST_AIF_IN("modem_in", sst_set_be_modules),
1054 	SST_AIF_IN("codec_in0", sst_set_be_modules),
1055 	SST_AIF_IN("codec_in1", sst_set_be_modules),
1056 	SST_AIF_OUT("modem_out", sst_set_be_modules),
1057 	SST_AIF_OUT("codec_out0", sst_set_be_modules),
1058 	SST_AIF_OUT("codec_out1", sst_set_be_modules),
1059 
1060 	/* Media Paths */
1061 	/* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
1062 	SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
1063 	SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
1064 	SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
1065 	SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
1066 	SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
1067 	SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),
1068 
1069 	/* SBA PCM Paths */
1070 	SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
1071 	SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
1072 	SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
1073 	SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
1074 	SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),
1075 
1076 	/* SBA Loops */
1077 	SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
1078 	SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
1079 	SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
1080 	SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_STEREO, sst_set_media_loop),
1081 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_STEREO, sst_set_media_loop),
1082 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),
1083 
1084 	/* Media Mixers */
1085 	SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
1086 		      sst_mix_media0_controls, sst_swm_mixer_event),
1087 	SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
1088 		      sst_mix_media1_controls, sst_swm_mixer_event),
1089 
1090 	/* SBA PCM mixers */
1091 	SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
1092 		      sst_mix_pcm0_controls, sst_swm_mixer_event),
1093 	SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
1094 		      sst_mix_pcm1_controls, sst_swm_mixer_event),
1095 	SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
1096 		      sst_mix_pcm2_controls, sst_swm_mixer_event),
1097 
1098 	/* SBA Loop mixers */
1099 	SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
1100 		      sst_mix_sprot_l0_controls, sst_swm_mixer_event),
1101 	SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
1102 		      sst_mix_media_l1_controls, sst_swm_mixer_event),
1103 	SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
1104 		      sst_mix_media_l2_controls, sst_swm_mixer_event),
1105 
1106 	/* SBA Backend mixers */
1107 	SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
1108 		      sst_mix_codec0_controls, sst_swm_mixer_event),
1109 	SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
1110 		      sst_mix_codec1_controls, sst_swm_mixer_event),
1111 	SST_SWM_MIXER("modem_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MODEM,
1112 		      sst_mix_modem_controls, sst_swm_mixer_event),
1113 
1114 };
1115 
1116 static const struct snd_soc_dapm_route intercon[] = {
1117 	{"media0_in", NULL, "Compress Playback"},
1118 	{"media1_in", NULL, "Headset Playback"},
1119 	{"media2_in", NULL, "pcm0_out"},
1120 	{"media3_in", NULL, "Deepbuffer Playback"},
1121 
1122 	{"media0_out mix 0", "media0_in Switch", "media0_in"},
1123 	{"media0_out mix 0", "media1_in Switch", "media1_in"},
1124 	{"media0_out mix 0", "media2_in Switch", "media2_in"},
1125 	{"media0_out mix 0", "media3_in Switch", "media3_in"},
1126 	{"media1_out mix 0", "media0_in Switch", "media0_in"},
1127 	{"media1_out mix 0", "media1_in Switch", "media1_in"},
1128 	{"media1_out mix 0", "media2_in Switch", "media2_in"},
1129 	{"media1_out mix 0", "media3_in Switch", "media3_in"},
1130 
1131 	{"media0_out", NULL, "media0_out mix 0"},
1132 	{"media1_out", NULL, "media1_out mix 0"},
1133 	{"pcm0_in", NULL, "media0_out"},
1134 	{"pcm1_in", NULL, "media1_out"},
1135 
1136 	{"Headset Capture", NULL, "pcm1_out"},
1137 	{"Headset Capture", NULL, "pcm2_out"},
1138 	{"pcm0_out", NULL, "pcm0_out mix 0"},
1139 	SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
1140 	{"pcm1_out", NULL, "pcm1_out mix 0"},
1141 	SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
1142 	{"pcm2_out", NULL, "pcm2_out mix 0"},
1143 	SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),
1144 
1145 	{"media_loop1_in", NULL, "media_loop1_out"},
1146 	{"media_loop1_out", NULL, "media_loop1_out mix 0"},
1147 	SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
1148 	{"media_loop2_in", NULL, "media_loop2_out"},
1149 	{"media_loop2_out", NULL, "media_loop2_out mix 0"},
1150 	SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
1151 	{"sprot_loop_in", NULL, "sprot_loop_out"},
1152 	{"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
1153 	SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),
1154 
1155 	{"codec_out0", NULL, "codec_out0 mix 0"},
1156 	SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
1157 	{"codec_out1", NULL, "codec_out1 mix 0"},
1158 	SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
1159 	{"modem_out", NULL, "modem_out mix 0"},
1160 	SST_SBA_MIXER_GRAPH_MAP("modem_out mix 0"),
1161 
1162 
1163 };
1164 static const char * const slot_names[] = {
1165 	"none",
1166 	"slot 0", "slot 1", "slot 2", "slot 3",
1167 	"slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
1168 };
1169 
1170 static const char * const channel_names[] = {
1171 	"none",
1172 	"codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
1173 	"codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
1174 };
1175 
1176 #define SST_INTERLEAVER(xpname, slot_name, slotno) \
1177 	SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
1178 			 channel_names, sst_slot_get, sst_slot_put)
1179 
1180 #define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
1181 	SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
1182 			 slot_names, sst_slot_get, sst_slot_put)
1183 
1184 static const struct snd_kcontrol_new sst_slot_controls[] = {
1185 	SST_INTERLEAVER("codec_out", "slot 0", 0),
1186 	SST_INTERLEAVER("codec_out", "slot 1", 1),
1187 	SST_INTERLEAVER("codec_out", "slot 2", 2),
1188 	SST_INTERLEAVER("codec_out", "slot 3", 3),
1189 	SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
1190 	SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
1191 	SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
1192 	SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
1193 };
1194 
1195 /* Gain helper with min/max set */
1196 #define SST_GAIN(name, path_id, task_id, instance, gain_var)				\
1197 	SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1198 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1199 		sst_gain_get, sst_gain_put,						\
1200 		SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,			\
1201 		sst_gain_tlv_common, gain_var)
1202 
1203 #define SST_VOLUME(name, path_id, task_id, instance, gain_var)				\
1204 	SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1205 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1206 		sst_gain_get, sst_gain_put,						\
1207 		SST_MODULE_ID_VOLUME, path_id, instance, task_id,			\
1208 		sst_gain_tlv_common, gain_var)
1209 
1210 static struct sst_gain_value sst_gains[];
1211 
1212 static const struct snd_kcontrol_new sst_gain_controls[] = {
1213 	SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
1214 	SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
1215 	SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
1216 	SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),
1217 
1218 	SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
1219 	SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
1220 	SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
1221 	SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),
1222 
1223 	SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
1224 	SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
1225 	SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
1226 	SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
1227 	SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
1228 	SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
1229 	SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
1230 	SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
1231 	SST_GAIN("modem_in", SST_PATH_INDEX_MODEM_IN, SST_TASK_SBA, 0, &sst_gains[16]),
1232 	SST_GAIN("modem_out", SST_PATH_INDEX_MODEM_OUT, SST_TASK_SBA, 0, &sst_gains[17]),
1233 
1234 };
1235 
1236 #define SST_GAIN_NUM_CONTROLS 3
1237 /* the SST_GAIN macro above will create three alsa controls for each
1238  * instance invoked, gain, mute and ramp duration, which use the same gain
1239  * cell sst_gain to keep track of data
1240  * To calculate number of gain cell instances we need to device by 3 in
1241  * below caulcation for gain cell memory.
1242  * This gets rid of static number and issues while adding new controls
1243  */
1244 static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];
1245 
1246 static const struct snd_kcontrol_new sst_algo_controls[] = {
1247 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
1248 		 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1249 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
1250 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1251 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1252 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1253 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
1254 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1255 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
1256 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1257 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1258 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1259 	SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
1260 		SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
1261 	SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1262 		SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1263 	SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1264 		SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1265 
1266 };
1267 
1268 static int sst_algo_control_init(struct device *dev)
1269 {
1270 	int i = 0;
1271 	struct sst_algo_control *bc;
1272 	/*allocate space to cache the algo parameters in the driver*/
1273 	for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
1274 		bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
1275 		bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
1276 		if (bc->params == NULL)
1277 			return -ENOMEM;
1278 	}
1279 	return 0;
1280 }
1281 
1282 static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
1283 {
1284 	switch (w->id) {
1285 	case snd_soc_dapm_pga:
1286 	case snd_soc_dapm_aif_in:
1287 	case snd_soc_dapm_aif_out:
1288 	case snd_soc_dapm_input:
1289 	case snd_soc_dapm_output:
1290 	case snd_soc_dapm_mixer:
1291 		return true;
1292 	default:
1293 		return false;
1294 	}
1295 }
1296 
1297 /**
1298  * sst_send_pipe_gains - send gains for the front-end DAIs
1299  *
1300  * The gains in the pipes connected to the front-ends are muted/unmuted
1301  * automatically via the digital_mute() DAPM callback. This function sends the
1302  * gains for the front-end pipes.
1303  */
1304 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
1305 {
1306 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
1307 	struct snd_soc_dapm_widget *w;
1308 	struct snd_soc_dapm_path *p = NULL;
1309 
1310 	dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);
1311 
1312 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1313 		dev_dbg(dai->dev, "Stream name=%s\n",
1314 				dai->playback_widget->name);
1315 		w = dai->playback_widget;
1316 		snd_soc_dapm_widget_for_each_sink_path(w, p) {
1317 			if (p->connected && !p->connected(w, p->sink))
1318 				continue;
1319 
1320 			if (p->connect && p->sink->power &&
1321 					is_sst_dapm_widget(p->sink)) {
1322 				struct sst_ids *ids = p->sink->priv;
1323 
1324 				dev_dbg(dai->dev, "send gains for widget=%s\n",
1325 						p->sink->name);
1326 				mutex_lock(&drv->lock);
1327 				sst_set_pipe_gain(ids, drv, mute);
1328 				mutex_unlock(&drv->lock);
1329 			}
1330 		}
1331 	} else {
1332 		dev_dbg(dai->dev, "Stream name=%s\n",
1333 				dai->capture_widget->name);
1334 		w = dai->capture_widget;
1335 		snd_soc_dapm_widget_for_each_source_path(w, p) {
1336 			if (p->connected && !p->connected(w, p->sink))
1337 				continue;
1338 
1339 			if (p->connect &&  p->source->power &&
1340 					is_sst_dapm_widget(p->source)) {
1341 				struct sst_ids *ids = p->source->priv;
1342 
1343 				dev_dbg(dai->dev, "send gain for widget=%s\n",
1344 						p->source->name);
1345 				mutex_lock(&drv->lock);
1346 				sst_set_pipe_gain(ids, drv, mute);
1347 				mutex_unlock(&drv->lock);
1348 			}
1349 		}
1350 	}
1351 	return 0;
1352 }
1353 
1354 /**
1355  * sst_fill_module_list - populate the list of modules/gains for a pipe
1356  *
1357  *
1358  * Fills the widget pointer in the kcontrol private data, and also fills the
1359  * kcontrol pointer in the widget private data.
1360  *
1361  * Widget pointer is used to send the algo/gain in the .put() handler if the
1362  * widget is powerd on.
1363  *
1364  * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
1365  * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
1366  */
1367 static int sst_fill_module_list(struct snd_kcontrol *kctl,
1368 	 struct snd_soc_dapm_widget *w, int type)
1369 {
1370 	struct sst_module *module = NULL;
1371 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1372 	struct sst_ids *ids = w->priv;
1373 	int ret = 0;
1374 
1375 	module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
1376 	if (!module)
1377 		return -ENOMEM;
1378 
1379 	if (type == SST_MODULE_GAIN) {
1380 		struct sst_gain_mixer_control *mc = (void *)kctl->private_value;
1381 
1382 		mc->w = w;
1383 		module->kctl = kctl;
1384 		list_add_tail(&module->node, &ids->gain_list);
1385 	} else if (type == SST_MODULE_ALGO) {
1386 		struct sst_algo_control *bc = (void *)kctl->private_value;
1387 
1388 		bc->w = w;
1389 		module->kctl = kctl;
1390 		list_add_tail(&module->node, &ids->algo_list);
1391 	} else {
1392 		dev_err(c->dev, "invoked for unknown type %d module %s",
1393 				type, kctl->id.name);
1394 		ret = -EINVAL;
1395 	}
1396 
1397 	return ret;
1398 }
1399 
1400 /**
1401  * sst_fill_widget_module_info - fill list of gains/algos for the pipe
1402  * @widget:	pipe modelled as a DAPM widget
1403  *
1404  * Fill the list of gains/algos for the widget by looking at all the card
1405  * controls and comparing the name of the widget with the first part of control
1406  * name. First part of control name contains the pipe name (widget name).
1407  */
1408 static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
1409 	struct snd_soc_component *component)
1410 {
1411 	struct snd_kcontrol *kctl;
1412 	int index, ret = 0;
1413 	struct snd_card *card = component->card->snd_card;
1414 	char *idx;
1415 
1416 	down_read(&card->controls_rwsem);
1417 
1418 	list_for_each_entry(kctl, &card->controls, list) {
1419 		idx = strchr(kctl->id.name, ' ');
1420 		if (idx == NULL)
1421 			continue;
1422 		index = idx - (char*)kctl->id.name;
1423 		if (strncmp(kctl->id.name, w->name, index))
1424 			continue;
1425 
1426 		if (strstr(kctl->id.name, "Volume"))
1427 			ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
1428 
1429 		else if (strstr(kctl->id.name, "params"))
1430 			ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
1431 
1432 		else if (strstr(kctl->id.name, "Switch") &&
1433 			 strstr(kctl->id.name, "Gain")) {
1434 			struct sst_gain_mixer_control *mc =
1435 						(void *)kctl->private_value;
1436 
1437 			mc->w = w;
1438 
1439 		} else if (strstr(kctl->id.name, "interleaver")) {
1440 			struct sst_enum *e = (void *)kctl->private_value;
1441 
1442 			e->w = w;
1443 
1444 		} else if (strstr(kctl->id.name, "deinterleaver")) {
1445 			struct sst_enum *e = (void *)kctl->private_value;
1446 
1447 			e->w = w;
1448 		}
1449 
1450 		if (ret < 0) {
1451 			up_read(&card->controls_rwsem);
1452 			return ret;
1453 		}
1454 	}
1455 
1456 	up_read(&card->controls_rwsem);
1457 	return 0;
1458 }
1459 
1460 /**
1461  * sst_fill_linked_widgets - fill the parent pointer for the linked widget
1462  */
1463 static void sst_fill_linked_widgets(struct snd_soc_component *component,
1464 						struct sst_ids *ids)
1465 {
1466 	struct snd_soc_dapm_widget *w;
1467 	unsigned int len = strlen(ids->parent_wname);
1468 
1469 	list_for_each_entry(w, &component->card->widgets, list) {
1470 		if (!strncmp(ids->parent_wname, w->name, len)) {
1471 			ids->parent_w = w;
1472 			break;
1473 		}
1474 	}
1475 }
1476 
1477 /**
1478  * sst_map_modules_to_pipe - fill algo/gains list for all pipes
1479  */
1480 static int sst_map_modules_to_pipe(struct snd_soc_component *component)
1481 {
1482 	struct snd_soc_dapm_widget *w;
1483 	int ret = 0;
1484 
1485 	list_for_each_entry(w, &component->card->widgets, list) {
1486 		if (is_sst_dapm_widget(w) && (w->priv)) {
1487 			struct sst_ids *ids = w->priv;
1488 
1489 			dev_dbg(component->dev, "widget type=%d name=%s\n",
1490 					w->id, w->name);
1491 			INIT_LIST_HEAD(&ids->algo_list);
1492 			INIT_LIST_HEAD(&ids->gain_list);
1493 			ret = sst_fill_widget_module_info(w, component);
1494 
1495 			if (ret < 0)
1496 				return ret;
1497 
1498 			/* fill linked widgets */
1499 			if (ids->parent_wname !=  NULL)
1500 				sst_fill_linked_widgets(component, ids);
1501 		}
1502 	}
1503 	return 0;
1504 }
1505 
1506 int sst_dsp_init_v2_dpcm(struct snd_soc_component *component)
1507 {
1508 	int i, ret = 0;
1509 	struct snd_soc_dapm_context *dapm =
1510 			snd_soc_component_get_dapm(component);
1511 	struct sst_data *drv = snd_soc_component_get_drvdata(component);
1512 	unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;
1513 
1514 	drv->byte_stream = devm_kzalloc(component->dev,
1515 					SST_MAX_BIN_BYTES, GFP_KERNEL);
1516 	if (!drv->byte_stream)
1517 		return -ENOMEM;
1518 
1519 	snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
1520 			ARRAY_SIZE(sst_dapm_widgets));
1521 	snd_soc_dapm_add_routes(dapm, intercon,
1522 			ARRAY_SIZE(intercon));
1523 	snd_soc_dapm_new_widgets(dapm->card);
1524 
1525 	for (i = 0; i < gains; i++) {
1526 		sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
1527 		sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
1528 		sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
1529 		sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
1530 	}
1531 
1532 	ret = snd_soc_add_component_controls(component, sst_gain_controls,
1533 			ARRAY_SIZE(sst_gain_controls));
1534 	if (ret)
1535 		return ret;
1536 
1537 	/* Initialize algo control params */
1538 	ret = sst_algo_control_init(component->dev);
1539 	if (ret)
1540 		return ret;
1541 	ret = snd_soc_add_component_controls(component, sst_algo_controls,
1542 			ARRAY_SIZE(sst_algo_controls));
1543 	if (ret)
1544 		return ret;
1545 
1546 	ret = snd_soc_add_component_controls(component, sst_slot_controls,
1547 			ARRAY_SIZE(sst_slot_controls));
1548 	if (ret)
1549 		return ret;
1550 
1551 	ret = sst_map_modules_to_pipe(component);
1552 
1553 	return ret;
1554 }
1555