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 /**
778  * sst_ssp_config - contains SSP configuration for media UC
779  */
780 static const struct sst_ssp_config sst_ssp_configs = {
781 	.ssp_id = SSP_CODEC,
782 	.bits_per_slot = 24,
783 	.slots = 4,
784 	.ssp_mode = SSP_MODE_MASTER,
785 	.pcm_mode = SSP_PCM_MODE_NETWORK,
786 	.duplex = SSP_DUPLEX,
787 	.ssp_protocol = SSP_MODE_PCM,
788 	.fs_width = 1,
789 	.fs_frequency = SSP_FS_48_KHZ,
790 	.active_slot_map = 0xF,
791 	.start_delay = 0,
792 };
793 
794 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
795 {
796 	struct sst_cmd_sba_hw_set_ssp cmd;
797 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
798 	const struct sst_ssp_config *config;
799 
800 	dev_info(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);
801 
802 	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
803 	cmd.header.command_id = SBA_HW_SET_SSP;
804 	cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
805 				- sizeof(struct sst_dsp_header);
806 
807 	config = &sst_ssp_configs;
808 	dev_dbg(dai->dev, "ssp_id: %u\n", config->ssp_id);
809 
810 	if (enable)
811 		cmd.switch_state = SST_SWITCH_ON;
812 	else
813 		cmd.switch_state = SST_SWITCH_OFF;
814 
815 	cmd.selection = config->ssp_id;
816 	cmd.nb_bits_per_slots = config->bits_per_slot;
817 	cmd.nb_slots = config->slots;
818 	cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
819 	cmd.duplex = config->duplex;
820 	cmd.active_tx_slot_map = config->active_slot_map;
821 	cmd.active_rx_slot_map = config->active_slot_map;
822 	cmd.frame_sync_frequency = config->fs_frequency;
823 	cmd.frame_sync_polarity = SSP_FS_ACTIVE_HIGH;
824 	cmd.data_polarity = 1;
825 	cmd.frame_sync_width = config->fs_width;
826 	cmd.ssp_protocol = config->ssp_protocol;
827 	cmd.start_delay = config->start_delay;
828 	cmd.reserved1 = cmd.reserved2 = 0xFF;
829 
830 	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
831 				SST_TASK_SBA, 0, &cmd,
832 				sizeof(cmd.header) + cmd.header.length);
833 }
834 
835 static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
836 			 struct snd_kcontrol *k, int event)
837 {
838 	int ret = 0;
839 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
840 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
841 
842 	dev_dbg(c->dev, "Enter: widget=%s\n", w->name);
843 
844 	if (SND_SOC_DAPM_EVENT_ON(event)) {
845 		ret = sst_send_slot_map(drv);
846 		if (ret)
847 			return ret;
848 		ret = sst_send_pipe_module_params(w, k);
849 	}
850 	return ret;
851 }
852 
853 static int sst_set_media_path(struct snd_soc_dapm_widget *w,
854 			      struct snd_kcontrol *k, int event)
855 {
856 	int ret = 0;
857 	struct sst_cmd_set_media_path cmd;
858 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
859 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
860 	struct sst_ids *ids = w->priv;
861 
862 	dev_dbg(c->dev, "widget=%s\n", w->name);
863 	dev_dbg(c->dev, "task=%u, location=%#x\n",
864 				ids->task_id, ids->location_id);
865 
866 	if (SND_SOC_DAPM_EVENT_ON(event))
867 		cmd.switch_state = SST_PATH_ON;
868 	else
869 		cmd.switch_state = SST_PATH_OFF;
870 
871 	SST_FILL_DESTINATION(2, cmd.header.dst,
872 			     ids->location_id, SST_DEFAULT_MODULE_ID);
873 
874 	/* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
875 	cmd.header.command_id = MMX_SET_MEDIA_PATH;
876 	cmd.header.length = sizeof(struct sst_cmd_set_media_path)
877 				- sizeof(struct sst_dsp_header);
878 
879 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
880 			      ids->task_id, 0, &cmd,
881 			      sizeof(cmd.header) + cmd.header.length);
882 	if (ret)
883 		return ret;
884 
885 	if (SND_SOC_DAPM_EVENT_ON(event))
886 		ret = sst_send_pipe_module_params(w, k);
887 	return ret;
888 }
889 
890 static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
891 			struct snd_kcontrol *k, int event)
892 {
893 	int ret = 0;
894 	struct sst_cmd_sba_set_media_loop_map cmd;
895 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
896 	struct sst_data *drv = snd_soc_component_get_drvdata(c);
897 	struct sst_ids *ids = w->priv;
898 
899 	dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
900 	if (SND_SOC_DAPM_EVENT_ON(event))
901 		cmd.switch_state = SST_SWITCH_ON;
902 	else
903 		cmd.switch_state = SST_SWITCH_OFF;
904 
905 	SST_FILL_DESTINATION(2, cmd.header.dst,
906 			     ids->location_id, SST_DEFAULT_MODULE_ID);
907 
908 	cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
909 	cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
910 				 - sizeof(struct sst_dsp_header);
911 	cmd.param.part.cfg.rate = 2; /* 48khz */
912 
913 	cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
914 	cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
915 	cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */
916 
917 	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
918 			      SST_TASK_SBA, 0, &cmd,
919 			      sizeof(cmd.header) + cmd.header.length);
920 	if (ret)
921 		return ret;
922 
923 	if (SND_SOC_DAPM_EVENT_ON(event))
924 		ret = sst_send_pipe_module_params(w, k);
925 	return ret;
926 }
927 
928 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
929 	SST_AIF_IN("codec_in0", sst_set_be_modules),
930 	SST_AIF_IN("codec_in1", sst_set_be_modules),
931 	SST_AIF_OUT("codec_out0", sst_set_be_modules),
932 	SST_AIF_OUT("codec_out1", sst_set_be_modules),
933 
934 	/* Media Paths */
935 	/* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
936 	SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
937 	SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
938 	SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
939 	SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
940 	SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
941 	SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),
942 
943 	/* SBA PCM Paths */
944 	SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
945 	SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
946 	SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
947 	SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
948 	SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),
949 
950 	/* SBA Loops */
951 	SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
952 	SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
953 	SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
954 	SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_MONO, sst_set_media_loop),
955 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_MONO, sst_set_media_loop),
956 	SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),
957 
958 	/* Media Mixers */
959 	SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
960 		      sst_mix_media0_controls, sst_swm_mixer_event),
961 	SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
962 		      sst_mix_media1_controls, sst_swm_mixer_event),
963 
964 	/* SBA PCM mixers */
965 	SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
966 		      sst_mix_pcm0_controls, sst_swm_mixer_event),
967 	SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
968 		      sst_mix_pcm1_controls, sst_swm_mixer_event),
969 	SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
970 		      sst_mix_pcm2_controls, sst_swm_mixer_event),
971 
972 	/* SBA Loop mixers */
973 	SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
974 		      sst_mix_sprot_l0_controls, sst_swm_mixer_event),
975 	SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
976 		      sst_mix_media_l1_controls, sst_swm_mixer_event),
977 	SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
978 		      sst_mix_media_l2_controls, sst_swm_mixer_event),
979 
980 	/* SBA Backend mixers */
981 	SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
982 		      sst_mix_codec0_controls, sst_swm_mixer_event),
983 	SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
984 		      sst_mix_codec1_controls, sst_swm_mixer_event),
985 };
986 
987 static const struct snd_soc_dapm_route intercon[] = {
988 	{"media0_in", NULL, "Compress Playback"},
989 	{"media1_in", NULL, "Headset Playback"},
990 	{"media2_in", NULL, "pcm0_out"},
991 
992 	{"media0_out mix 0", "media0_in Switch", "media0_in"},
993 	{"media0_out mix 0", "media1_in Switch", "media1_in"},
994 	{"media0_out mix 0", "media2_in Switch", "media2_in"},
995 	{"media0_out mix 0", "media3_in Switch", "media3_in"},
996 	{"media1_out mix 0", "media0_in Switch", "media0_in"},
997 	{"media1_out mix 0", "media1_in Switch", "media1_in"},
998 	{"media1_out mix 0", "media2_in Switch", "media2_in"},
999 	{"media1_out mix 0", "media3_in Switch", "media3_in"},
1000 
1001 	{"media0_out", NULL, "media0_out mix 0"},
1002 	{"media1_out", NULL, "media1_out mix 0"},
1003 	{"pcm0_in", NULL, "media0_out"},
1004 	{"pcm1_in", NULL, "media1_out"},
1005 
1006 	{"Headset Capture", NULL, "pcm1_out"},
1007 	{"Headset Capture", NULL, "pcm2_out"},
1008 	{"pcm0_out", NULL, "pcm0_out mix 0"},
1009 	SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
1010 	{"pcm1_out", NULL, "pcm1_out mix 0"},
1011 	SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
1012 	{"pcm2_out", NULL, "pcm2_out mix 0"},
1013 	SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),
1014 
1015 	{"media_loop1_in", NULL, "media_loop1_out"},
1016 	{"media_loop1_out", NULL, "media_loop1_out mix 0"},
1017 	SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
1018 	{"media_loop2_in", NULL, "media_loop2_out"},
1019 	{"media_loop2_out", NULL, "media_loop2_out mix 0"},
1020 	SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
1021 	{"sprot_loop_in", NULL, "sprot_loop_out"},
1022 	{"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
1023 	SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),
1024 
1025 	{"codec_out0", NULL, "codec_out0 mix 0"},
1026 	SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
1027 	{"codec_out1", NULL, "codec_out1 mix 0"},
1028 	SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
1029 
1030 };
1031 static const char * const slot_names[] = {
1032 	"none",
1033 	"slot 0", "slot 1", "slot 2", "slot 3",
1034 	"slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
1035 };
1036 
1037 static const char * const channel_names[] = {
1038 	"none",
1039 	"codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
1040 	"codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
1041 };
1042 
1043 #define SST_INTERLEAVER(xpname, slot_name, slotno) \
1044 	SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
1045 			 channel_names, sst_slot_get, sst_slot_put)
1046 
1047 #define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
1048 	SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
1049 			 slot_names, sst_slot_get, sst_slot_put)
1050 
1051 static const struct snd_kcontrol_new sst_slot_controls[] = {
1052 	SST_INTERLEAVER("codec_out", "slot 0", 0),
1053 	SST_INTERLEAVER("codec_out", "slot 1", 1),
1054 	SST_INTERLEAVER("codec_out", "slot 2", 2),
1055 	SST_INTERLEAVER("codec_out", "slot 3", 3),
1056 	SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
1057 	SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
1058 	SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
1059 	SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
1060 };
1061 
1062 /* Gain helper with min/max set */
1063 #define SST_GAIN(name, path_id, task_id, instance, gain_var)				\
1064 	SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1065 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1066 		sst_gain_get, sst_gain_put,						\
1067 		SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,			\
1068 		sst_gain_tlv_common, gain_var)
1069 
1070 #define SST_VOLUME(name, path_id, task_id, instance, gain_var)				\
1071 	SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
1072 		SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,					\
1073 		sst_gain_get, sst_gain_put,						\
1074 		SST_MODULE_ID_VOLUME, path_id, instance, task_id,			\
1075 		sst_gain_tlv_common, gain_var)
1076 
1077 static struct sst_gain_value sst_gains[];
1078 
1079 static const struct snd_kcontrol_new sst_gain_controls[] = {
1080 	SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
1081 	SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
1082 	SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
1083 	SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),
1084 
1085 	SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
1086 	SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
1087 	SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
1088 	SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),
1089 
1090 	SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
1091 	SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
1092 	SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
1093 	SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
1094 	SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
1095 	SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
1096 	SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
1097 	SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
1098 };
1099 
1100 #define SST_GAIN_NUM_CONTROLS 3
1101 /* the SST_GAIN macro above will create three alsa controls for each
1102  * instance invoked, gain, mute and ramp duration, which use the same gain
1103  * cell sst_gain to keep track of data
1104  * To calculate number of gain cell instances we need to device by 3 in
1105  * below caulcation for gain cell memory.
1106  * This gets rid of static number and issues while adding new controls
1107  */
1108 static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];
1109 
1110 static const struct snd_kcontrol_new sst_algo_controls[] = {
1111 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
1112 		 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1113 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
1114 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1115 	SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1116 		SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1117 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
1118 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1119 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
1120 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1121 	SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1122 		SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1123 	SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
1124 		SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
1125 	SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1126 		SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1127 	SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1128 		SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1129 
1130 };
1131 
1132 static int sst_algo_control_init(struct device *dev)
1133 {
1134 	int i = 0;
1135 	struct sst_algo_control *bc;
1136 	/*allocate space to cache the algo parameters in the driver*/
1137 	for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
1138 		bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
1139 		bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
1140 		if (bc->params == NULL)
1141 			return -ENOMEM;
1142 	}
1143 	return 0;
1144 }
1145 
1146 static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
1147 {
1148 	switch (w->id) {
1149 	case snd_soc_dapm_pga:
1150 	case snd_soc_dapm_aif_in:
1151 	case snd_soc_dapm_aif_out:
1152 	case snd_soc_dapm_input:
1153 	case snd_soc_dapm_output:
1154 	case snd_soc_dapm_mixer:
1155 		return true;
1156 	default:
1157 		return false;
1158 	}
1159 }
1160 
1161 /**
1162  * sst_send_pipe_gains - send gains for the front-end DAIs
1163  *
1164  * The gains in the pipes connected to the front-ends are muted/unmuted
1165  * automatically via the digital_mute() DAPM callback. This function sends the
1166  * gains for the front-end pipes.
1167  */
1168 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
1169 {
1170 	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
1171 	struct snd_soc_dapm_widget *w;
1172 	struct snd_soc_dapm_path *p = NULL;
1173 
1174 	dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);
1175 
1176 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1177 		dev_dbg(dai->dev, "Stream name=%s\n",
1178 				dai->playback_widget->name);
1179 		w = dai->playback_widget;
1180 		list_for_each_entry(p, &w->sinks, list_source) {
1181 			if (p->connected && !p->connected(w, p->sink))
1182 				continue;
1183 
1184 			if (p->connect && p->sink->power &&
1185 					is_sst_dapm_widget(p->sink)) {
1186 				struct sst_ids *ids = p->sink->priv;
1187 
1188 				dev_dbg(dai->dev, "send gains for widget=%s\n",
1189 						p->sink->name);
1190 				mutex_lock(&drv->lock);
1191 				sst_set_pipe_gain(ids, drv, mute);
1192 				mutex_unlock(&drv->lock);
1193 			}
1194 		}
1195 	} else {
1196 		dev_dbg(dai->dev, "Stream name=%s\n",
1197 				dai->capture_widget->name);
1198 		w = dai->capture_widget;
1199 		list_for_each_entry(p, &w->sources, list_sink) {
1200 			if (p->connected && !p->connected(w, p->sink))
1201 				continue;
1202 
1203 			if (p->connect &&  p->source->power &&
1204 					is_sst_dapm_widget(p->source)) {
1205 				struct sst_ids *ids = p->source->priv;
1206 
1207 				dev_dbg(dai->dev, "send gain for widget=%s\n",
1208 						p->source->name);
1209 				mutex_lock(&drv->lock);
1210 				sst_set_pipe_gain(ids, drv, mute);
1211 				mutex_unlock(&drv->lock);
1212 			}
1213 		}
1214 	}
1215 	return 0;
1216 }
1217 
1218 /**
1219  * sst_fill_module_list - populate the list of modules/gains for a pipe
1220  *
1221  *
1222  * Fills the widget pointer in the kcontrol private data, and also fills the
1223  * kcontrol pointer in the widget private data.
1224  *
1225  * Widget pointer is used to send the algo/gain in the .put() handler if the
1226  * widget is powerd on.
1227  *
1228  * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
1229  * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
1230  */
1231 static int sst_fill_module_list(struct snd_kcontrol *kctl,
1232 	 struct snd_soc_dapm_widget *w, int type)
1233 {
1234 	struct sst_module *module = NULL;
1235 	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1236 	struct sst_ids *ids = w->priv;
1237 	int ret = 0;
1238 
1239 	module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
1240 	if (!module)
1241 		return -ENOMEM;
1242 
1243 	if (type == SST_MODULE_GAIN) {
1244 		struct sst_gain_mixer_control *mc = (void *)kctl->private_value;
1245 
1246 		mc->w = w;
1247 		module->kctl = kctl;
1248 		list_add_tail(&module->node, &ids->gain_list);
1249 	} else if (type == SST_MODULE_ALGO) {
1250 		struct sst_algo_control *bc = (void *)kctl->private_value;
1251 
1252 		bc->w = w;
1253 		module->kctl = kctl;
1254 		list_add_tail(&module->node, &ids->algo_list);
1255 	} else {
1256 		dev_err(c->dev, "invoked for unknown type %d module %s",
1257 				type, kctl->id.name);
1258 		ret = -EINVAL;
1259 	}
1260 
1261 	return ret;
1262 }
1263 
1264 /**
1265  * sst_fill_widget_module_info - fill list of gains/algos for the pipe
1266  * @widget:	pipe modelled as a DAPM widget
1267  *
1268  * Fill the list of gains/algos for the widget by looking at all the card
1269  * controls and comparing the name of the widget with the first part of control
1270  * name. First part of control name contains the pipe name (widget name).
1271  */
1272 static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
1273 	struct snd_soc_platform *platform)
1274 {
1275 	struct snd_kcontrol *kctl;
1276 	int index, ret = 0;
1277 	struct snd_card *card = platform->component.card->snd_card;
1278 	char *idx;
1279 
1280 	down_read(&card->controls_rwsem);
1281 
1282 	list_for_each_entry(kctl, &card->controls, list) {
1283 		idx = strstr(kctl->id.name, " ");
1284 		if (idx == NULL)
1285 			continue;
1286 		index  = strlen(kctl->id.name) - strlen(idx);
1287 
1288 		if (strstr(kctl->id.name, "Volume") &&
1289 		    !strncmp(kctl->id.name, w->name, index))
1290 			ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
1291 
1292 		else if (strstr(kctl->id.name, "params") &&
1293 			 !strncmp(kctl->id.name, w->name, index))
1294 			ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
1295 
1296 		else if (strstr(kctl->id.name, "Switch") &&
1297 			 !strncmp(kctl->id.name, w->name, index) &&
1298 			 strstr(kctl->id.name, "Gain")) {
1299 			struct sst_gain_mixer_control *mc =
1300 						(void *)kctl->private_value;
1301 
1302 			mc->w = w;
1303 
1304 		} else if (strstr(kctl->id.name, "interleaver") &&
1305 			 !strncmp(kctl->id.name, w->name, index)) {
1306 			struct sst_enum *e = (void *)kctl->private_value;
1307 
1308 			e->w = w;
1309 
1310 		} else if (strstr(kctl->id.name, "deinterleaver") &&
1311 			 !strncmp(kctl->id.name, w->name, index)) {
1312 
1313 			struct sst_enum *e = (void *)kctl->private_value;
1314 
1315 			e->w = w;
1316 		}
1317 
1318 		if (ret < 0) {
1319 			up_read(&card->controls_rwsem);
1320 			return ret;
1321 		}
1322 	}
1323 
1324 	up_read(&card->controls_rwsem);
1325 	return 0;
1326 }
1327 
1328 /**
1329  * sst_fill_linked_widgets - fill the parent pointer for the linked widget
1330  */
1331 static void sst_fill_linked_widgets(struct snd_soc_platform *platform,
1332 						struct sst_ids *ids)
1333 {
1334 	struct snd_soc_dapm_widget *w;
1335 	unsigned int len = strlen(ids->parent_wname);
1336 
1337 	list_for_each_entry(w, &platform->component.card->widgets, list) {
1338 		if (!strncmp(ids->parent_wname, w->name, len)) {
1339 			ids->parent_w = w;
1340 			break;
1341 		}
1342 	}
1343 }
1344 
1345 /**
1346  * sst_map_modules_to_pipe - fill algo/gains list for all pipes
1347  */
1348 static int sst_map_modules_to_pipe(struct snd_soc_platform *platform)
1349 {
1350 	struct snd_soc_dapm_widget *w;
1351 	int ret = 0;
1352 
1353 	list_for_each_entry(w, &platform->component.card->widgets, list) {
1354 		if (is_sst_dapm_widget(w) && (w->priv)) {
1355 			struct sst_ids *ids = w->priv;
1356 
1357 			dev_dbg(platform->dev, "widget type=%d name=%s\n",
1358 					w->id, w->name);
1359 			INIT_LIST_HEAD(&ids->algo_list);
1360 			INIT_LIST_HEAD(&ids->gain_list);
1361 			ret = sst_fill_widget_module_info(w, platform);
1362 
1363 			if (ret < 0)
1364 				return ret;
1365 
1366 			/* fill linked widgets */
1367 			if (ids->parent_wname !=  NULL)
1368 				sst_fill_linked_widgets(platform, ids);
1369 		}
1370 	}
1371 	return 0;
1372 }
1373 
1374 int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)
1375 {
1376 	int i, ret = 0;
1377 	struct snd_soc_dapm_context *dapm =
1378 			snd_soc_component_get_dapm(&platform->component);
1379 	struct sst_data *drv = snd_soc_platform_get_drvdata(platform);
1380 	unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;
1381 
1382 	drv->byte_stream = devm_kzalloc(platform->dev,
1383 					SST_MAX_BIN_BYTES, GFP_KERNEL);
1384 	if (!drv->byte_stream)
1385 		return -ENOMEM;
1386 
1387 	snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
1388 			ARRAY_SIZE(sst_dapm_widgets));
1389 	snd_soc_dapm_add_routes(dapm, intercon,
1390 			ARRAY_SIZE(intercon));
1391 	snd_soc_dapm_new_widgets(dapm->card);
1392 
1393 	for (i = 0; i < gains; i++) {
1394 		sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
1395 		sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
1396 		sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
1397 		sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
1398 	}
1399 
1400 	ret = snd_soc_add_platform_controls(platform, sst_gain_controls,
1401 			ARRAY_SIZE(sst_gain_controls));
1402 	if (ret)
1403 		return ret;
1404 
1405 	/* Initialize algo control params */
1406 	ret = sst_algo_control_init(platform->dev);
1407 	if (ret)
1408 		return ret;
1409 	ret = snd_soc_add_platform_controls(platform, sst_algo_controls,
1410 			ARRAY_SIZE(sst_algo_controls));
1411 	if (ret)
1412 		return ret;
1413 
1414 	ret = snd_soc_add_platform_controls(platform, sst_slot_controls,
1415 			ARRAY_SIZE(sst_slot_controls));
1416 	if (ret)
1417 		return ret;
1418 
1419 	ret = sst_map_modules_to_pipe(platform);
1420 
1421 	return ret;
1422 }
1423