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