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 static 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 if (!e->w)
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 ? 0 : 1;
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_MODEM]		= SST_SWM_IN_MODEM,
538 	[SST_IP_CODEC0]		= SST_SWM_IN_CODEC0,
539 	[SST_IP_CODEC1]		= SST_SWM_IN_CODEC1,
540 	[SST_IP_LOOP0]		= SST_SWM_IN_SPROT_LOOP,
541 	[SST_IP_LOOP1]		= SST_SWM_IN_MEDIA_LOOP1,
542 	[SST_IP_LOOP2]		= SST_SWM_IN_MEDIA_LOOP2,
543 	[SST_IP_PCM0]		= SST_SWM_IN_PCM0,
544 	[SST_IP_PCM1]		= SST_SWM_IN_PCM1,
545 	[SST_IP_MEDIA0]		= SST_SWM_IN_MEDIA0,
546 	[SST_IP_MEDIA1]		= SST_SWM_IN_MEDIA1,
547 	[SST_IP_MEDIA2]		= SST_SWM_IN_MEDIA2,
548 	[SST_IP_MEDIA3]		= SST_SWM_IN_MEDIA3,
549 };
550 
551 /**
552  * fill_swm_input - fill in the SWM input ids given the register
553  *
554  * The register value is a bit-field inicated which mixer inputs are ON. Use the
555  * lookup table to get the input-id and fill it in the structure.
556  */
557 static int fill_swm_input(struct snd_soc_component *cmpnt,
558 		struct swm_input_ids *swm_input, unsigned int reg)
559 {
560 	uint i, is_set, nb_inputs = 0;
561 	u16 input_loc_id;
562 
563 	dev_dbg(cmpnt->dev, "reg: %#x\n", reg);
564 	for (i = 0; i < SST_SWM_INPUT_COUNT; i++) {
565 		is_set = reg & BIT(i);
566 		if (!is_set)
567 			continue;
568 
569 		input_loc_id = swm_mixer_input_ids[i];
570 		SST_FILL_DESTINATION(2, swm_input->input_id,
571 				     input_loc_id, SST_DEFAULT_MODULE_ID);
572 		nb_inputs++;
573 		swm_input++;
574 		dev_dbg(cmpnt->dev, "input id: %#x, nb_inputs: %d\n",
575 				input_loc_id, nb_inputs);
576 
577 		if (nb_inputs == SST_CMD_SWM_MAX_INPUTS) {
578 			dev_warn(cmpnt->dev, "SET_SWM cmd max inputs reached");
579 			break;
580 		}
581 	}
582 	return nb_inputs;
583 }
584 
585 
586 /**
587  * called with lock held
588  */
589 static int sst_set_pipe_gain(struct sst_ids *ids,
590 			struct sst_data *drv, int mute)
591 {
592 	int ret = 0;
593 	struct sst_gain_mixer_control *mc;
594 	struct sst_gain_value *gv;
595 	struct sst_module *gain = NULL;
596 
597 	list_for_each_entry(gain, &ids->gain_list, node) {
598 		struct snd_kcontrol *kctl = gain->kctl;
599 
600 		dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);
601 		mc = (void *)kctl->private_value;
602 		gv = mc->gain_val;
603 
604 		ret = sst_send_gain_cmd(drv, gv, mc->task_id,
605 			mc->pipe_id | mc->instance_id, mc->module_id, mute);
606 		if (ret)
607 			return ret;
608 	}
609 	return ret;
610 }
611 
612 static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
613 			struct snd_kcontrol *k, int event)
614 {
615 	struct sst_cmd_set_swm cmd;
616 	struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
617 	struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
618 	struct sst_ids *ids = w->priv;
619 	bool set_mixer = false;
620 	struct soc_mixer_control *mc;
621 	int val = 0;
622 	int i = 0;
623 
624 	dev_dbg(cmpnt->dev, "widget = %s\n", w->name);
625 	/*
626 	 * Identify which mixer input is on and send the bitmap of the
627 	 * inputs as an IPC to the DSP.
628 	 */
629 	for (i = 0; i < w->num_kcontrols; i++) {
630 		if (dapm_kcontrol_get_value(w->kcontrols[i])) {
631 			mc = (struct soc_mixer_control *)(w->kcontrols[i])->private_value;
632 			val |= 1 << mc->shift;
633 		}
634 	}
635 	dev_dbg(cmpnt->dev, "val = %#x\n", val);
636 
637 	switch (event) {
638 	case SND_SOC_DAPM_PRE_PMU:
639 	case SND_SOC_DAPM_POST_PMD:
640 		set_mixer = true;
641 		break;
642 	case SND_SOC_DAPM_POST_REG:
643 		if (w->power)
644 			set_mixer = true;
645 		break;
646 	default:
647 		set_mixer = false;
648 	}
649 
650 	if (!set_mixer)
651 		return 0;
652 
653 	if (SND_SOC_DAPM_EVENT_ON(event) ||
654 	    event == SND_SOC_DAPM_POST_REG)
655 		cmd.switch_state = SST_SWM_ON;
656 	else
657 		cmd.switch_state = SST_SWM_OFF;
658 
659 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
660 	/* MMX_SET_SWM == SBA_SET_SWM */
661 	cmd.header.command_id = SBA_SET_SWM;
662 
663 	SST_FILL_DESTINATION(2, cmd.output_id,
664 			     ids->location_id, SST_DEFAULT_MODULE_ID);
665 	cmd.nb_inputs =	fill_swm_input(cmpnt, &cmd.input[0], val);
666 	cmd.header.length = offsetof(struct sst_cmd_set_swm, input)
667 				- sizeof(struct sst_dsp_header)
668 				+ (cmd.nb_inputs * sizeof(cmd.input[0]));
669 
670 	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
671 			      ids->task_id, 0, &cmd,
672 			      sizeof(cmd.header) + cmd.header.length);
673 }
674 
675 /* SBA mixers - 16 inputs */
676 #define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)							\
677 	static const struct snd_kcontrol_new kctl_name[] = {					\
678 		SOC_DAPM_SINGLE("modem_in Switch", SND_SOC_NOPM, SST_IP_MODEM, 1, 0),		\
679 		SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),		\
680 		SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),		\
681 		SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),	\
682 		SOC_DAPM_SINGLE("media_loop1_in Switch", SND_SOC_NOPM, SST_IP_LOOP1, 1, 0),	\
683 		SOC_DAPM_SINGLE("media_loop2_in Switch", SND_SOC_NOPM, SST_IP_LOOP2, 1, 0),	\
684 		SOC_DAPM_SINGLE("pcm0_in Switch", SND_SOC_NOPM, SST_IP_PCM0, 1, 0),		\
685 		SOC_DAPM_SINGLE("pcm1_in Switch", SND_SOC_NOPM, SST_IP_PCM1, 1, 0),		\
686 	}
687 
688 #define SST_SBA_MIXER_GRAPH_MAP(mix_name)			\
689 	{ mix_name, "modem_in Switch",	"modem_in" },		\
690 	{ mix_name, "codec_in0 Switch",	"codec_in0" },		\
691 	{ mix_name, "codec_in1 Switch",	"codec_in1" },		\
692 	{ mix_name, "sprot_loop_in Switch",	"sprot_loop_in" },	\
693 	{ mix_name, "media_loop1_in Switch",	"media_loop1_in" },	\
694 	{ mix_name, "media_loop2_in Switch",	"media_loop2_in" },	\
695 	{ mix_name, "pcm0_in Switch",		"pcm0_in" },		\
696 	{ mix_name, "pcm1_in Switch",		"pcm1_in" }
697 
698 #define SST_MMX_DECLARE_MIX_CONTROLS(kctl_name)						\
699 	static const struct snd_kcontrol_new kctl_name[] = {				\
700 		SOC_DAPM_SINGLE("media0_in Switch", SND_SOC_NOPM, SST_IP_MEDIA0, 1, 0),	\
701 		SOC_DAPM_SINGLE("media1_in Switch", SND_SOC_NOPM, SST_IP_MEDIA1, 1, 0),	\
702 		SOC_DAPM_SINGLE("media2_in Switch", SND_SOC_NOPM, SST_IP_MEDIA2, 1, 0),	\
703 		SOC_DAPM_SINGLE("media3_in Switch", SND_SOC_NOPM, SST_IP_MEDIA3, 1, 0),	\
704 	}
705 
706 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media0_controls);
707 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media1_controls);
708 
709 /* 18 SBA mixers */
710 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm0_controls);
711 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm1_controls);
712 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm2_controls);
713 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_sprot_l0_controls);
714 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l1_controls);
715 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
716 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
717 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
718 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);
719 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_modem_controls);
720 
721 /*
722  * sst_handle_vb_timer - Start/Stop the DSP scheduler
723  *
724  * The DSP expects first cmd to be SBA_VB_START, so at first startup send
725  * that.
726  * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.
727  *
728  * Do refcount internally so that we send command only at first start
729  * and last end. Since SST driver does its own ref count, invoke sst's
730  * power ops always!
731  */
732 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)
733 {
734 	int ret = 0;
735 	struct sst_cmd_generic cmd;
736 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
737 	static int timer_usage;
738 
739 	if (enable)
740 		cmd.header.command_id = SBA_VB_START;
741 	else
742 		cmd.header.command_id = SBA_IDLE;
743 	dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);
744 
745 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
746 	cmd.header.length = 0;
747 
748 	if (enable) {
749 		ret = sst->ops->power(sst->dev, true);
750 		if (ret < 0)
751 			return ret;
752 	}
753 
754 	mutex_lock(&drv->lock);
755 	if (enable)
756 		timer_usage++;
757 	else
758 		timer_usage--;
759 
760 	/*
761 	 * Send the command only if this call is the first enable or last
762 	 * disable
763 	 */
764 	if ((enable && (timer_usage == 1)) ||
765 	    (!enable && (timer_usage == 0))) {
766 		ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,
767 				SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
768 				sizeof(cmd.header) + cmd.header.length);
769 		if (ret && enable) {
770 			timer_usage--;
771 			enable  = false;
772 		}
773 	}
774 	mutex_unlock(&drv->lock);
775 
776 	if (!enable)
777 		sst->ops->power(sst->dev, false);
778 	return ret;
779 }
780 
781 int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
782 		unsigned int rx_mask, int slots, int slot_width)
783 {
784 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
785 
786 	ctx->ssp_cmd.nb_slots = slots;
787 	ctx->ssp_cmd.active_tx_slot_map = tx_mask;
788 	ctx->ssp_cmd.active_rx_slot_map = rx_mask;
789 	ctx->ssp_cmd.nb_bits_per_slots = slot_width;
790 
791 	return 0;
792 }
793 
794 static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,
795 		unsigned int fmt)
796 {
797 	int format;
798 
799 	format = fmt & SND_SOC_DAIFMT_INV_MASK;
800 	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
801 
802 	switch (format) {
803 	case SND_SOC_DAIFMT_NB_NF:
804 	case SND_SOC_DAIFMT_IB_NF:
805 		return SSP_FS_ACTIVE_HIGH;
806 	case SND_SOC_DAIFMT_NB_IF:
807 	case SND_SOC_DAIFMT_IB_IF:
808 		return SSP_FS_ACTIVE_LOW;
809 	default:
810 		dev_err(dai->dev, "Invalid frame sync polarity %d\n", format);
811 	}
812 
813 	return -EINVAL;
814 }
815 
816 static int sst_get_ssp_mode(struct snd_soc_dai *dai, unsigned int fmt)
817 {
818 	int format;
819 
820 	format = (fmt & SND_SOC_DAIFMT_MASTER_MASK);
821 	dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
822 
823 	switch (format) {
824 	case SND_SOC_DAIFMT_CBS_CFS:
825 		return SSP_MODE_MASTER;
826 	case SND_SOC_DAIFMT_CBM_CFM:
827 		return SSP_MODE_SLAVE;
828 	default:
829 		dev_err(dai->dev, "Invalid ssp protocol: %d\n", format);
830 	}
831 
832 	return -EINVAL;
833 }
834 
835 
836 int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt)
837 {
838 	unsigned int mode;
839 	int fs_polarity;
840 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
841 
842 	mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
843 
844 	switch (mode) {
845 	case SND_SOC_DAIFMT_DSP_B:
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 = 0;
849 		ctx->ssp_cmd.data_polarity = 1;
850 		ctx->ssp_cmd.frame_sync_width = 1;
851 		break;
852 
853 	case SND_SOC_DAIFMT_DSP_A:
854 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
855 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
856 		ctx->ssp_cmd.start_delay = 1;
857 		ctx->ssp_cmd.data_polarity = 1;
858 		ctx->ssp_cmd.frame_sync_width = 1;
859 		break;
860 
861 	case SND_SOC_DAIFMT_I2S:
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 = 1;
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 	case SND_SOC_DAIFMT_LEFT_J:
870 		ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
871 		ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
872 		ctx->ssp_cmd.start_delay = 0;
873 		ctx->ssp_cmd.data_polarity = 0;
874 		ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
875 		break;
876 
877 	default:
878 		dev_dbg(dai->dev, "using default ssp configs\n");
879 	}
880 
881 	fs_polarity = sst_get_frame_sync_polarity(dai, fmt);
882 	if (fs_polarity < 0)
883 		return fs_polarity;
884 
885 	ctx->ssp_cmd.frame_sync_polarity = fs_polarity;
886 
887 	return 0;
888 }
889 
890 /**
891  * sst_ssp_config - contains SSP configuration for media UC
892  * this can be overwritten by set_dai_xxx APIs
893  */
894 static const struct sst_ssp_config sst_ssp_configs = {
895 	.ssp_id = SSP_CODEC,
896 	.bits_per_slot = 24,
897 	.slots = 4,
898 	.ssp_mode = SSP_MODE_MASTER,
899 	.pcm_mode = SSP_PCM_MODE_NETWORK,
900 	.duplex = SSP_DUPLEX,
901 	.ssp_protocol = SSP_MODE_PCM,
902 	.fs_width = 1,
903 	.fs_frequency = SSP_FS_48_KHZ,
904 	.active_slot_map = 0xF,
905 	.start_delay = 0,
906 	.frame_sync_polarity = SSP_FS_ACTIVE_HIGH,
907 	.data_polarity = 1,
908 };
909 
910 void sst_fill_ssp_defaults(struct snd_soc_dai *dai)
911 {
912 	const struct sst_ssp_config *config;
913 	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
914 
915 	config = &sst_ssp_configs;
916 
917 	ctx->ssp_cmd.selection = config->ssp_id;
918 	ctx->ssp_cmd.nb_bits_per_slots = config->bits_per_slot;
919 	ctx->ssp_cmd.nb_slots = config->slots;
920 	ctx->ssp_cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
921 	ctx->ssp_cmd.duplex = config->duplex;
922 	ctx->ssp_cmd.active_tx_slot_map = config->active_slot_map;
923 	ctx->ssp_cmd.active_rx_slot_map = config->active_slot_map;
924 	ctx->ssp_cmd.frame_sync_frequency = config->fs_frequency;
925 	ctx->ssp_cmd.frame_sync_polarity = config->frame_sync_polarity;
926 	ctx->ssp_cmd.data_polarity = config->data_polarity;
927 	ctx->ssp_cmd.frame_sync_width = config->fs_width;
928 	ctx->ssp_cmd.ssp_protocol = config->ssp_protocol;
929 	ctx->ssp_cmd.start_delay = config->start_delay;
930 	ctx->ssp_cmd.reserved1 = ctx->ssp_cmd.reserved2 = 0xFF;
931 }
932 
933 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
934 {
935 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
936 	int ssp_id;
937 
938 	dev_dbg(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);
939 
940 	if (strcmp(id, "ssp0-port") == 0)
941 		ssp_id = SSP_MODEM;
942 	else if (strcmp(id, "ssp2-port") == 0)
943 		ssp_id = SSP_CODEC;
944 	else {
945 		dev_dbg(dai->dev, "port %s is not supported\n", id);
946 		return -1;
947 	}
948 
949 	SST_FILL_DEFAULT_DESTINATION(drv->ssp_cmd.header.dst);
950 	drv->ssp_cmd.header.command_id = SBA_HW_SET_SSP;
951 	drv->ssp_cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
952 				- sizeof(struct sst_dsp_header);
953 
954 	drv->ssp_cmd.selection = ssp_id;
955 	dev_dbg(dai->dev, "ssp_id: %u\n", ssp_id);
956 
957 	if (enable)
958 		drv->ssp_cmd.switch_state = SST_SWITCH_ON;
959 	else
960 		drv->ssp_cmd.switch_state = SST_SWITCH_OFF;
961 
962 	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
963 				SST_TASK_SBA, 0, &drv->ssp_cmd,
964 				sizeof(drv->ssp_cmd.header) + drv->ssp_cmd.header.length);
965 }
966 
967 static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
968 			 struct snd_kcontrol *k, int event)
969 {
970 	int ret = 0;
971 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
972 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
973 
974 	dev_dbg(c->dev, "Enter: widget=%s\n", w->name);
975 
976 	if (SND_SOC_DAPM_EVENT_ON(event)) {
977 		ret = sst_send_slot_map(drv);
978 		if (ret)
979 			return ret;
980 		ret = sst_send_pipe_module_params(w, k);
981 	}
982 	return ret;
983 }
984 
985 static int sst_set_media_path(struct snd_soc_dapm_widget *w,
986 			      struct snd_kcontrol *k, int event)
987 {
988 	int ret = 0;
989 	struct sst_cmd_set_media_path cmd;
990 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
991 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
992 	struct sst_ids *ids = w->priv;
993 
994 	dev_dbg(c->dev, "widget=%s\n", w->name);
995 	dev_dbg(c->dev, "task=%u, location=%#x\n",
996 				ids->task_id, ids->location_id);
997 
998 	if (SND_SOC_DAPM_EVENT_ON(event))
999 		cmd.switch_state = SST_PATH_ON;
1000 	else
1001 		cmd.switch_state = SST_PATH_OFF;
1002 
1003 	SST_FILL_DESTINATION(2, cmd.header.dst,
1004 			     ids->location_id, SST_DEFAULT_MODULE_ID);
1005 
1006 	/* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
1007 	cmd.header.command_id = MMX_SET_MEDIA_PATH;
1008 	cmd.header.length = sizeof(struct sst_cmd_set_media_path)
1009 				- sizeof(struct sst_dsp_header);
1010 
1011 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1012 			      ids->task_id, 0, &cmd,
1013 			      sizeof(cmd.header) + cmd.header.length);
1014 	if (ret)
1015 		return ret;
1016 
1017 	if (SND_SOC_DAPM_EVENT_ON(event))
1018 		ret = sst_send_pipe_module_params(w, k);
1019 	return ret;
1020 }
1021 
1022 static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
1023 			struct snd_kcontrol *k, int event)
1024 {
1025 	int ret = 0;
1026 	struct sst_cmd_sba_set_media_loop_map cmd;
1027 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1028 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
1029 	struct sst_ids *ids = w->priv;
1030 
1031 	dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
1032 	if (SND_SOC_DAPM_EVENT_ON(event))
1033 		cmd.switch_state = SST_SWITCH_ON;
1034 	else
1035 		cmd.switch_state = SST_SWITCH_OFF;
1036 
1037 	SST_FILL_DESTINATION(2, cmd.header.dst,
1038 			     ids->location_id, SST_DEFAULT_MODULE_ID);
1039 
1040 	cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
1041 	cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
1042 				 - sizeof(struct sst_dsp_header);
1043 	cmd.param.part.cfg.rate = 2; /* 48khz */
1044 
1045 	cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
1046 	cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
1047 	cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */
1048 
1049 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1050 			      SST_TASK_SBA, 0, &cmd,
1051 			      sizeof(cmd.header) + cmd.header.length);
1052 	if (ret)
1053 		return ret;
1054 
1055 	if (SND_SOC_DAPM_EVENT_ON(event))
1056 		ret = sst_send_pipe_module_params(w, k);
1057 	return ret;
1058 }
1059 
1060 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
1061 	SST_AIF_IN("modem_in", sst_set_be_modules),
1062 	SST_AIF_IN("codec_in0", sst_set_be_modules),
1063 	SST_AIF_IN("codec_in1", sst_set_be_modules),
1064 	SST_AIF_OUT("modem_out", sst_set_be_modules),
1065 	SST_AIF_OUT("codec_out0", sst_set_be_modules),
1066 	SST_AIF_OUT("codec_out1", sst_set_be_modules),
1067 
1068 	/* Media Paths */
1069 	/* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
1070 	SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
1071 	SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
1072 	SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
1073 	SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
1074 	SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
1075 	SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),
1076 
1077 	/* SBA PCM Paths */
1078 	SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
1079 	SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
1080 	SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
1081 	SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
1082 	SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),
1083 
1084 	/* SBA Loops */
1085 	SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
1086 	SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
1087 	SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
1088 	SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_STEREO, sst_set_media_loop),
1089 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_STEREO, sst_set_media_loop),
1090 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),
1091 
1092 	/* Media Mixers */
1093 	SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
1094 		      sst_mix_media0_controls, sst_swm_mixer_event),
1095 	SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
1096 		      sst_mix_media1_controls, sst_swm_mixer_event),
1097 
1098 	/* SBA PCM mixers */
1099 	SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
1100 		      sst_mix_pcm0_controls, sst_swm_mixer_event),
1101 	SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
1102 		      sst_mix_pcm1_controls, sst_swm_mixer_event),
1103 	SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
1104 		      sst_mix_pcm2_controls, sst_swm_mixer_event),
1105 
1106 	/* SBA Loop mixers */
1107 	SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
1108 		      sst_mix_sprot_l0_controls, sst_swm_mixer_event),
1109 	SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
1110 		      sst_mix_media_l1_controls, sst_swm_mixer_event),
1111 	SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
1112 		      sst_mix_media_l2_controls, sst_swm_mixer_event),
1113 
1114 	/* SBA Backend mixers */
1115 	SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
1116 		      sst_mix_codec0_controls, sst_swm_mixer_event),
1117 	SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
1118 		      sst_mix_codec1_controls, sst_swm_mixer_event),
1119 	SST_SWM_MIXER("modem_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MODEM,
1120 		      sst_mix_modem_controls, sst_swm_mixer_event),
1121 
1122 };
1123 
1124 static const struct snd_soc_dapm_route intercon[] = {
1125 	{"media0_in", NULL, "Compress Playback"},
1126 	{"media1_in", NULL, "Headset Playback"},
1127 	{"media2_in", NULL, "pcm0_out"},
1128 	{"media3_in", NULL, "Deepbuffer Playback"},
1129 
1130 	{"media0_out mix 0", "media0_in Switch", "media0_in"},
1131 	{"media0_out mix 0", "media1_in Switch", "media1_in"},
1132 	{"media0_out mix 0", "media2_in Switch", "media2_in"},
1133 	{"media0_out mix 0", "media3_in Switch", "media3_in"},
1134 	{"media1_out mix 0", "media0_in Switch", "media0_in"},
1135 	{"media1_out mix 0", "media1_in Switch", "media1_in"},
1136 	{"media1_out mix 0", "media2_in Switch", "media2_in"},
1137 	{"media1_out mix 0", "media3_in Switch", "media3_in"},
1138 
1139 	{"media0_out", NULL, "media0_out mix 0"},
1140 	{"media1_out", NULL, "media1_out mix 0"},
1141 	{"pcm0_in", NULL, "media0_out"},
1142 	{"pcm1_in", NULL, "media1_out"},
1143 
1144 	{"Headset Capture", NULL, "pcm1_out"},
1145 	{"Headset Capture", NULL, "pcm2_out"},
1146 	{"pcm0_out", NULL, "pcm0_out mix 0"},
1147 	SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
1148 	{"pcm1_out", NULL, "pcm1_out mix 0"},
1149 	SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
1150 	{"pcm2_out", NULL, "pcm2_out mix 0"},
1151 	SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),
1152 
1153 	{"media_loop1_in", NULL, "media_loop1_out"},
1154 	{"media_loop1_out", NULL, "media_loop1_out mix 0"},
1155 	SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
1156 	{"media_loop2_in", NULL, "media_loop2_out"},
1157 	{"media_loop2_out", NULL, "media_loop2_out mix 0"},
1158 	SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
1159 	{"sprot_loop_in", NULL, "sprot_loop_out"},
1160 	{"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
1161 	SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),
1162 
1163 	{"codec_out0", NULL, "codec_out0 mix 0"},
1164 	SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
1165 	{"codec_out1", NULL, "codec_out1 mix 0"},
1166 	SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
1167 	{"modem_out", NULL, "modem_out mix 0"},
1168 	SST_SBA_MIXER_GRAPH_MAP("modem_out mix 0"),
1169 
1170 
1171 };
1172 static const char * const slot_names[] = {
1173 	"none",
1174 	"slot 0", "slot 1", "slot 2", "slot 3",
1175 	"slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
1176 };
1177 
1178 static const char * const channel_names[] = {
1179 	"none",
1180 	"codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
1181 	"codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
1182 };
1183 
1184 #define SST_INTERLEAVER(xpname, slot_name, slotno) \
1185 	SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
1186 			 channel_names, sst_slot_get, sst_slot_put)
1187 
1188 #define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
1189 	SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
1190 			 slot_names, sst_slot_get, sst_slot_put)
1191 
1192 static const struct snd_kcontrol_new sst_slot_controls[] = {
1193 	SST_INTERLEAVER("codec_out", "slot 0", 0),
1194 	SST_INTERLEAVER("codec_out", "slot 1", 1),
1195 	SST_INTERLEAVER("codec_out", "slot 2", 2),
1196 	SST_INTERLEAVER("codec_out", "slot 3", 3),
1197 	SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
1198 	SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
1199 	SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
1200 	SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
1201 };
1202 
1203 /* Gain helper with min/max set */
1204 #define SST_GAIN(name, path_id, task_id, instance, gain_var)				\
1205 	SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1206 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1207 		sst_gain_get, sst_gain_put,						\
1208 		SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,			\
1209 		sst_gain_tlv_common, gain_var)
1210 
1211 #define SST_VOLUME(name, path_id, task_id, instance, gain_var)				\
1212 	SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1213 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1214 		sst_gain_get, sst_gain_put,						\
1215 		SST_MODULE_ID_VOLUME, path_id, instance, task_id,			\
1216 		sst_gain_tlv_common, gain_var)
1217 
1218 static struct sst_gain_value sst_gains[];
1219 
1220 static const struct snd_kcontrol_new sst_gain_controls[] = {
1221 	SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
1222 	SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
1223 	SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
1224 	SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),
1225 
1226 	SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
1227 	SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
1228 	SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
1229 	SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),
1230 
1231 	SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
1232 	SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
1233 	SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
1234 	SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
1235 	SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
1236 	SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
1237 	SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
1238 	SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
1239 	SST_GAIN("modem_in", SST_PATH_INDEX_MODEM_IN, SST_TASK_SBA, 0, &sst_gains[16]),
1240 	SST_GAIN("modem_out", SST_PATH_INDEX_MODEM_OUT, SST_TASK_SBA, 0, &sst_gains[17]),
1241 
1242 };
1243 
1244 #define SST_GAIN_NUM_CONTROLS 3
1245 /* the SST_GAIN macro above will create three alsa controls for each
1246  * instance invoked, gain, mute and ramp duration, which use the same gain
1247  * cell sst_gain to keep track of data
1248  * To calculate number of gain cell instances we need to device by 3 in
1249  * below caulcation for gain cell memory.
1250  * This gets rid of static number and issues while adding new controls
1251  */
1252 static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];
1253 
1254 static const struct snd_kcontrol_new sst_algo_controls[] = {
1255 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
1256 		 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1257 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
1258 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1259 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1260 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1261 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
1262 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1263 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
1264 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1265 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1266 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1267 	SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
1268 		SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
1269 	SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1270 		SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1271 	SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1272 		SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1273 
1274 };
1275 
1276 static int sst_algo_control_init(struct device *dev)
1277 {
1278 	int i = 0;
1279 	struct sst_algo_control *bc;
1280 	/*allocate space to cache the algo parameters in the driver*/
1281 	for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
1282 		bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
1283 		bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
1284 		if (bc->params == NULL)
1285 			return -ENOMEM;
1286 	}
1287 	return 0;
1288 }
1289 
1290 static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
1291 {
1292 	switch (w->id) {
1293 	case snd_soc_dapm_pga:
1294 	case snd_soc_dapm_aif_in:
1295 	case snd_soc_dapm_aif_out:
1296 	case snd_soc_dapm_input:
1297 	case snd_soc_dapm_output:
1298 	case snd_soc_dapm_mixer:
1299 		return true;
1300 	default:
1301 		return false;
1302 	}
1303 }
1304 
1305 /**
1306  * sst_send_pipe_gains - send gains for the front-end DAIs
1307  *
1308  * The gains in the pipes connected to the front-ends are muted/unmuted
1309  * automatically via the digital_mute() DAPM callback. This function sends the
1310  * gains for the front-end pipes.
1311  */
1312 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
1313 {
1314 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
1315 	struct snd_soc_dapm_widget *w;
1316 	struct snd_soc_dapm_path *p = NULL;
1317 
1318 	dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);
1319 
1320 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1321 		dev_dbg(dai->dev, "Stream name=%s\n",
1322 				dai->playback_widget->name);
1323 		w = dai->playback_widget;
1324 		snd_soc_dapm_widget_for_each_sink_path(w, p) {
1325 			if (p->connected && !p->connected(w, p->sink))
1326 				continue;
1327 
1328 			if (p->connect && p->sink->power &&
1329 					is_sst_dapm_widget(p->sink)) {
1330 				struct sst_ids *ids = p->sink->priv;
1331 
1332 				dev_dbg(dai->dev, "send gains for widget=%s\n",
1333 						p->sink->name);
1334 				mutex_lock(&drv->lock);
1335 				sst_set_pipe_gain(ids, drv, mute);
1336 				mutex_unlock(&drv->lock);
1337 			}
1338 		}
1339 	} else {
1340 		dev_dbg(dai->dev, "Stream name=%s\n",
1341 				dai->capture_widget->name);
1342 		w = dai->capture_widget;
1343 		snd_soc_dapm_widget_for_each_source_path(w, p) {
1344 			if (p->connected && !p->connected(w, p->sink))
1345 				continue;
1346 
1347 			if (p->connect &&  p->source->power &&
1348 					is_sst_dapm_widget(p->source)) {
1349 				struct sst_ids *ids = p->source->priv;
1350 
1351 				dev_dbg(dai->dev, "send gain for widget=%s\n",
1352 						p->source->name);
1353 				mutex_lock(&drv->lock);
1354 				sst_set_pipe_gain(ids, drv, mute);
1355 				mutex_unlock(&drv->lock);
1356 			}
1357 		}
1358 	}
1359 	return 0;
1360 }
1361 
1362 /**
1363  * sst_fill_module_list - populate the list of modules/gains for a pipe
1364  *
1365  *
1366  * Fills the widget pointer in the kcontrol private data, and also fills the
1367  * kcontrol pointer in the widget private data.
1368  *
1369  * Widget pointer is used to send the algo/gain in the .put() handler if the
1370  * widget is powerd on.
1371  *
1372  * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
1373  * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
1374  */
1375 static int sst_fill_module_list(struct snd_kcontrol *kctl,
1376 	 struct snd_soc_dapm_widget *w, int type)
1377 {
1378 	struct sst_module *module = NULL;
1379 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1380 	struct sst_ids *ids = w->priv;
1381 	int ret = 0;
1382 
1383 	module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
1384 	if (!module)
1385 		return -ENOMEM;
1386 
1387 	if (type == SST_MODULE_GAIN) {
1388 		struct sst_gain_mixer_control *mc = (void *)kctl->private_value;
1389 
1390 		mc->w = w;
1391 		module->kctl = kctl;
1392 		list_add_tail(&module->node, &ids->gain_list);
1393 	} else if (type == SST_MODULE_ALGO) {
1394 		struct sst_algo_control *bc = (void *)kctl->private_value;
1395 
1396 		bc->w = w;
1397 		module->kctl = kctl;
1398 		list_add_tail(&module->node, &ids->algo_list);
1399 	} else {
1400 		dev_err(c->dev, "invoked for unknown type %d module %s",
1401 				type, kctl->id.name);
1402 		ret = -EINVAL;
1403 	}
1404 
1405 	return ret;
1406 }
1407 
1408 /**
1409  * sst_fill_widget_module_info - fill list of gains/algos for the pipe
1410  * @widget:	pipe modelled as a DAPM widget
1411  *
1412  * Fill the list of gains/algos for the widget by looking at all the card
1413  * controls and comparing the name of the widget with the first part of control
1414  * name. First part of control name contains the pipe name (widget name).
1415  */
1416 static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
1417 	struct snd_soc_component *component)
1418 {
1419 	struct snd_kcontrol *kctl;
1420 	int index, ret = 0;
1421 	struct snd_card *card = component->card->snd_card;
1422 	char *idx;
1423 
1424 	down_read(&card->controls_rwsem);
1425 
1426 	list_for_each_entry(kctl, &card->controls, list) {
1427 		idx = strchr(kctl->id.name, ' ');
1428 		if (idx == NULL)
1429 			continue;
1430 		index = idx - (char*)kctl->id.name;
1431 		if (strncmp(kctl->id.name, w->name, index))
1432 			continue;
1433 
1434 		if (strstr(kctl->id.name, "Volume"))
1435 			ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
1436 
1437 		else if (strstr(kctl->id.name, "params"))
1438 			ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
1439 
1440 		else if (strstr(kctl->id.name, "Switch") &&
1441 			 strstr(kctl->id.name, "Gain")) {
1442 			struct sst_gain_mixer_control *mc =
1443 						(void *)kctl->private_value;
1444 
1445 			mc->w = w;
1446 
1447 		} else if (strstr(kctl->id.name, "interleaver")) {
1448 			struct sst_enum *e = (void *)kctl->private_value;
1449 
1450 			e->w = w;
1451 
1452 		} else if (strstr(kctl->id.name, "deinterleaver")) {
1453 			struct sst_enum *e = (void *)kctl->private_value;
1454 
1455 			e->w = w;
1456 		}
1457 
1458 		if (ret < 0) {
1459 			up_read(&card->controls_rwsem);
1460 			return ret;
1461 		}
1462 	}
1463 
1464 	up_read(&card->controls_rwsem);
1465 	return 0;
1466 }
1467 
1468 /**
1469  * sst_fill_linked_widgets - fill the parent pointer for the linked widget
1470  */
1471 static void sst_fill_linked_widgets(struct snd_soc_component *component,
1472 						struct sst_ids *ids)
1473 {
1474 	struct snd_soc_dapm_widget *w;
1475 	unsigned int len = strlen(ids->parent_wname);
1476 
1477 	list_for_each_entry(w, &component->card->widgets, list) {
1478 		if (!strncmp(ids->parent_wname, w->name, len)) {
1479 			ids->parent_w = w;
1480 			break;
1481 		}
1482 	}
1483 }
1484 
1485 /**
1486  * sst_map_modules_to_pipe - fill algo/gains list for all pipes
1487  */
1488 static int sst_map_modules_to_pipe(struct snd_soc_component *component)
1489 {
1490 	struct snd_soc_dapm_widget *w;
1491 	int ret = 0;
1492 
1493 	list_for_each_entry(w, &component->card->widgets, list) {
1494 		if (is_sst_dapm_widget(w) && (w->priv)) {
1495 			struct sst_ids *ids = w->priv;
1496 
1497 			dev_dbg(component->dev, "widget type=%d name=%s\n",
1498 					w->id, w->name);
1499 			INIT_LIST_HEAD(&ids->algo_list);
1500 			INIT_LIST_HEAD(&ids->gain_list);
1501 			ret = sst_fill_widget_module_info(w, component);
1502 
1503 			if (ret < 0)
1504 				return ret;
1505 
1506 			/* fill linked widgets */
1507 			if (ids->parent_wname !=  NULL)
1508 				sst_fill_linked_widgets(component, ids);
1509 		}
1510 	}
1511 	return 0;
1512 }
1513 
1514 int sst_dsp_init_v2_dpcm(struct snd_soc_component *component)
1515 {
1516 	int i, ret = 0;
1517 	struct snd_soc_dapm_context *dapm =
1518 			snd_soc_component_get_dapm(component);
1519 	struct sst_data *drv = snd_soc_component_get_drvdata(component);
1520 	unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;
1521 
1522 	drv->byte_stream = devm_kzalloc(component->dev,
1523 					SST_MAX_BIN_BYTES, GFP_KERNEL);
1524 	if (!drv->byte_stream)
1525 		return -ENOMEM;
1526 
1527 	snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
1528 			ARRAY_SIZE(sst_dapm_widgets));
1529 	snd_soc_dapm_add_routes(dapm, intercon,
1530 			ARRAY_SIZE(intercon));
1531 	snd_soc_dapm_new_widgets(dapm->card);
1532 
1533 	for (i = 0; i < gains; i++) {
1534 		sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
1535 		sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
1536 		sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
1537 		sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
1538 	}
1539 
1540 	ret = snd_soc_add_component_controls(component, sst_gain_controls,
1541 			ARRAY_SIZE(sst_gain_controls));
1542 	if (ret)
1543 		return ret;
1544 
1545 	/* Initialize algo control params */
1546 	ret = sst_algo_control_init(component->dev);
1547 	if (ret)
1548 		return ret;
1549 	ret = snd_soc_add_component_controls(component, sst_algo_controls,
1550 			ARRAY_SIZE(sst_algo_controls));
1551 	if (ret)
1552 		return ret;
1553 
1554 	ret = snd_soc_add_component_controls(component, sst_slot_controls,
1555 			ARRAY_SIZE(sst_slot_controls));
1556 	if (ret)
1557 		return ret;
1558 
1559 	ret = sst_map_modules_to_pipe(component);
1560 
1561 	return ret;
1562 }
1563