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TOMOYO Linux Cross Reference
Linux/sound/soc/intel/atom/sst-atom-controls.c

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  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
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_CODEC0]         = SST_SWM_IN_CODEC0,
538         [SST_IP_CODEC1]         = SST_SWM_IN_CODEC1,
539         [SST_IP_LOOP0]          = SST_SWM_IN_SPROT_LOOP,
540         [SST_IP_LOOP1]          = SST_SWM_IN_MEDIA_LOOP1,
541         [SST_IP_LOOP2]          = SST_SWM_IN_MEDIA_LOOP2,
542         [SST_IP_PCM0]           = SST_SWM_IN_PCM0,
543         [SST_IP_PCM1]           = SST_SWM_IN_PCM1,
544         [SST_IP_MEDIA0]         = SST_SWM_IN_MEDIA0,
545         [SST_IP_MEDIA1]         = SST_SWM_IN_MEDIA1,
546         [SST_IP_MEDIA2]         = SST_SWM_IN_MEDIA2,
547         [SST_IP_MEDIA3]         = SST_SWM_IN_MEDIA3,
548 };
549 
550 /**
551  * fill_swm_input - fill in the SWM input ids given the register
552  *
553  * The register value is a bit-field inicated which mixer inputs are ON. Use the
554  * lookup table to get the input-id and fill it in the structure.
555  */
556 static int fill_swm_input(struct snd_soc_component *cmpnt,
557                 struct swm_input_ids *swm_input, unsigned int reg)
558 {
559         uint i, is_set, nb_inputs = 0;
560         u16 input_loc_id;
561 
562         dev_dbg(cmpnt->dev, "reg: %#x\n", reg);
563         for (i = 0; i < SST_SWM_INPUT_COUNT; i++) {
564                 is_set = reg & BIT(i);
565                 if (!is_set)
566                         continue;
567 
568                 input_loc_id = swm_mixer_input_ids[i];
569                 SST_FILL_DESTINATION(2, swm_input->input_id,
570                                      input_loc_id, SST_DEFAULT_MODULE_ID);
571                 nb_inputs++;
572                 swm_input++;
573                 dev_dbg(cmpnt->dev, "input id: %#x, nb_inputs: %d\n",
574                                 input_loc_id, nb_inputs);
575 
576                 if (nb_inputs == SST_CMD_SWM_MAX_INPUTS) {
577                         dev_warn(cmpnt->dev, "SET_SWM cmd max inputs reached");
578                         break;
579                 }
580         }
581         return nb_inputs;
582 }
583 
584 
585 /**
586  * called with lock held
587  */
588 static int sst_set_pipe_gain(struct sst_ids *ids,
589                         struct sst_data *drv, int mute)
590 {
591         int ret = 0;
592         struct sst_gain_mixer_control *mc;
593         struct sst_gain_value *gv;
594         struct sst_module *gain = NULL;
595 
596         list_for_each_entry(gain, &ids->gain_list, node) {
597                 struct snd_kcontrol *kctl = gain->kctl;
598 
599                 dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);
600                 mc = (void *)kctl->private_value;
601                 gv = mc->gain_val;
602 
603                 ret = sst_send_gain_cmd(drv, gv, mc->task_id,
604                         mc->pipe_id | mc->instance_id, mc->module_id, mute);
605                 if (ret)
606                         return ret;
607         }
608         return ret;
609 }
610 
611 static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
612                         struct snd_kcontrol *k, int event)
613 {
614         struct sst_cmd_set_swm cmd;
615         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
616         struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
617         struct sst_ids *ids = w->priv;
618         bool set_mixer = false;
619         struct soc_mixer_control *mc;
620         int val = 0;
621         int i = 0;
622 
623         dev_dbg(cmpnt->dev, "widget = %s\n", w->name);
624         /*
625          * Identify which mixer input is on and send the bitmap of the
626          * inputs as an IPC to the DSP.
627          */
628         for (i = 0; i < w->num_kcontrols; i++) {
629                 if (dapm_kcontrol_get_value(w->kcontrols[i])) {
630                         mc = (struct soc_mixer_control *)(w->kcontrols[i])->private_value;
631                         val |= 1 << mc->shift;
632                 }
633         }
634         dev_dbg(cmpnt->dev, "val = %#x\n", val);
635 
636         switch (event) {
637         case SND_SOC_DAPM_PRE_PMU:
638         case SND_SOC_DAPM_POST_PMD:
639                 set_mixer = true;
640                 break;
641         case SND_SOC_DAPM_POST_REG:
642                 if (w->power)
643                         set_mixer = true;
644                 break;
645         default:
646                 set_mixer = false;
647         }
648 
649         if (set_mixer == false)
650                 return 0;
651 
652         if (SND_SOC_DAPM_EVENT_ON(event) ||
653             event == SND_SOC_DAPM_POST_REG)
654                 cmd.switch_state = SST_SWM_ON;
655         else
656                 cmd.switch_state = SST_SWM_OFF;
657 
658         SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
659         /* MMX_SET_SWM == SBA_SET_SWM */
660         cmd.header.command_id = SBA_SET_SWM;
661 
662         SST_FILL_DESTINATION(2, cmd.output_id,
663                              ids->location_id, SST_DEFAULT_MODULE_ID);
664         cmd.nb_inputs = fill_swm_input(cmpnt, &cmd.input[0], val);
665         cmd.header.length = offsetof(struct sst_cmd_set_swm, input)
666                                 - sizeof(struct sst_dsp_header)
667                                 + (cmd.nb_inputs * sizeof(cmd.input[0]));
668 
669         return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
670                               ids->task_id, 0, &cmd,
671                               sizeof(cmd.header) + cmd.header.length);
672 }
673 
674 /* SBA mixers - 16 inputs */
675 #define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)                                                 \
676         static const struct snd_kcontrol_new kctl_name[] = {                                    \
677                 SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),         \
678                 SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),         \
679                 SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),      \
680                 SOC_DAPM_SINGLE("media_loop1_in Switch", SND_SOC_NOPM, SST_IP_LOOP1, 1, 0),     \
681                 SOC_DAPM_SINGLE("media_loop2_in Switch", SND_SOC_NOPM, SST_IP_LOOP2, 1, 0),     \
682                 SOC_DAPM_SINGLE("pcm0_in Switch", SND_SOC_NOPM, SST_IP_PCM0, 1, 0),             \
683                 SOC_DAPM_SINGLE("pcm1_in Switch", SND_SOC_NOPM, SST_IP_PCM1, 1, 0),             \
684         }
685 
686 #define SST_SBA_MIXER_GRAPH_MAP(mix_name)                       \
687         { mix_name, "codec_in0 Switch", "codec_in0" },          \
688         { mix_name, "codec_in1 Switch", "codec_in1" },          \
689         { mix_name, "sprot_loop_in Switch",     "sprot_loop_in" },      \
690         { mix_name, "media_loop1_in Switch",    "media_loop1_in" },     \
691         { mix_name, "media_loop2_in Switch",    "media_loop2_in" },     \
692         { mix_name, "pcm0_in Switch",           "pcm0_in" },            \
693         { mix_name, "pcm1_in Switch",           "pcm1_in" }
694 
695 #define SST_MMX_DECLARE_MIX_CONTROLS(kctl_name)                                         \
696         static const struct snd_kcontrol_new kctl_name[] = {                            \
697                 SOC_DAPM_SINGLE("media0_in Switch", SND_SOC_NOPM, SST_IP_MEDIA0, 1, 0), \
698                 SOC_DAPM_SINGLE("media1_in Switch", SND_SOC_NOPM, SST_IP_MEDIA1, 1, 0), \
699                 SOC_DAPM_SINGLE("media2_in Switch", SND_SOC_NOPM, SST_IP_MEDIA2, 1, 0), \
700                 SOC_DAPM_SINGLE("media3_in Switch", SND_SOC_NOPM, SST_IP_MEDIA3, 1, 0), \
701         }
702 
703 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media0_controls);
704 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media1_controls);
705 
706 /* 18 SBA mixers */
707 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm0_controls);
708 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm1_controls);
709 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm2_controls);
710 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_sprot_l0_controls);
711 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l1_controls);
712 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
713 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
714 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
715 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);
716 
717 /*
718  * sst_handle_vb_timer - Start/Stop the DSP scheduler
719  *
720  * The DSP expects first cmd to be SBA_VB_START, so at first startup send
721  * that.
722  * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.
723  *
724  * Do refcount internally so that we send command only at first start
725  * and last end. Since SST driver does its own ref count, invoke sst's
726  * power ops always!
727  */
728 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)
729 {
730         int ret = 0;
731         struct sst_cmd_generic cmd;
732         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
733         static int timer_usage;
734 
735         if (enable)
736                 cmd.header.command_id = SBA_VB_START;
737         else
738                 cmd.header.command_id = SBA_IDLE;
739         dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);
740 
741         SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
742         cmd.header.length = 0;
743 
744         if (enable) {
745                 ret = sst->ops->power(sst->dev, true);
746                 if (ret < 0)
747                         return ret;
748         }
749 
750         mutex_lock(&drv->lock);
751         if (enable)
752                 timer_usage++;
753         else
754                 timer_usage--;
755 
756         /*
757          * Send the command only if this call is the first enable or last
758          * disable
759          */
760         if ((enable && (timer_usage == 1)) ||
761             (!enable && (timer_usage == 0))) {
762                 ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,
763                                 SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
764                                 sizeof(cmd.header) + cmd.header.length);
765                 if (ret && enable) {
766                         timer_usage--;
767                         enable  = false;
768                 }
769         }
770         mutex_unlock(&drv->lock);
771 
772         if (!enable)
773                 sst->ops->power(sst->dev, false);
774         return ret;
775 }
776 
777 int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
778                 unsigned int rx_mask, int slots, int slot_width)
779 {
780         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
781 
782         ctx->ssp_cmd.nb_slots = slots;
783         ctx->ssp_cmd.active_tx_slot_map = tx_mask;
784         ctx->ssp_cmd.active_rx_slot_map = rx_mask;
785         ctx->ssp_cmd.nb_bits_per_slots = slot_width;
786 
787         return 0;
788 }
789 
790 static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,
791                 unsigned int fmt)
792 {
793         int format;
794 
795         format = fmt & SND_SOC_DAIFMT_INV_MASK;
796         dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
797 
798         switch (format) {
799         case SND_SOC_DAIFMT_NB_NF:
800                 return SSP_FS_ACTIVE_LOW;
801         case SND_SOC_DAIFMT_NB_IF:
802                 return SSP_FS_ACTIVE_HIGH;
803         case SND_SOC_DAIFMT_IB_IF:
804                 return SSP_FS_ACTIVE_LOW;
805         case SND_SOC_DAIFMT_IB_NF:
806                 return SSP_FS_ACTIVE_HIGH;
807         default:
808                 dev_err(dai->dev, "Invalid frame sync polarity %d\n", format);
809         }
810 
811         return -EINVAL;
812 }
813 
814 static int sst_get_ssp_mode(struct snd_soc_dai *dai, unsigned int fmt)
815 {
816         int format;
817 
818         format = (fmt & SND_SOC_DAIFMT_MASTER_MASK);
819         dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
820 
821         switch (format) {
822         case SND_SOC_DAIFMT_CBS_CFS:
823                 return SSP_MODE_MASTER;
824         case SND_SOC_DAIFMT_CBM_CFM:
825                 return SSP_MODE_SLAVE;
826         default:
827                 dev_err(dai->dev, "Invalid ssp protocol: %d\n", format);
828         }
829 
830         return -EINVAL;
831 }
832 
833 
834 int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt)
835 {
836         unsigned int mode;
837         int fs_polarity;
838         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
839 
840         mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
841 
842         switch (mode) {
843         case SND_SOC_DAIFMT_DSP_B:
844                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
845                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
846                 ctx->ssp_cmd.start_delay = 0;
847                 ctx->ssp_cmd.data_polarity = 1;
848                 ctx->ssp_cmd.frame_sync_width = 1;
849                 break;
850 
851         case SND_SOC_DAIFMT_DSP_A:
852                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
853                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
854                 ctx->ssp_cmd.start_delay = 1;
855                 ctx->ssp_cmd.data_polarity = 1;
856                 ctx->ssp_cmd.frame_sync_width = 1;
857                 break;
858 
859         case SND_SOC_DAIFMT_I2S:
860                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
861                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
862                 ctx->ssp_cmd.start_delay = 1;
863                 ctx->ssp_cmd.data_polarity = 0;
864                 ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
865                 break;
866 
867         case SND_SOC_DAIFMT_LEFT_J:
868                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
869                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
870                 ctx->ssp_cmd.start_delay = 0;
871                 ctx->ssp_cmd.data_polarity = 0;
872                 ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
873                 break;
874 
875         default:
876                 dev_dbg(dai->dev, "using default ssp configs\n");
877         }
878 
879         fs_polarity = sst_get_frame_sync_polarity(dai, fmt);
880         if (fs_polarity < 0)
881                 return fs_polarity;
882 
883         ctx->ssp_cmd.frame_sync_polarity = fs_polarity;
884 
885         return 0;
886 }
887 
888 /**
889  * sst_ssp_config - contains SSP configuration for media UC
890  * this can be overwritten by set_dai_xxx APIs
891  */
892 static const struct sst_ssp_config sst_ssp_configs = {
893         .ssp_id = SSP_CODEC,
894         .bits_per_slot = 24,
895         .slots = 4,
896         .ssp_mode = SSP_MODE_MASTER,
897         .pcm_mode = SSP_PCM_MODE_NETWORK,
898         .duplex = SSP_DUPLEX,
899         .ssp_protocol = SSP_MODE_PCM,
900         .fs_width = 1,
901         .fs_frequency = SSP_FS_48_KHZ,
902         .active_slot_map = 0xF,
903         .start_delay = 0,
904         .frame_sync_polarity = SSP_FS_ACTIVE_HIGH,
905         .data_polarity = 1,
906 };
907 
908 void sst_fill_ssp_defaults(struct snd_soc_dai *dai)
909 {
910         const struct sst_ssp_config *config;
911         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
912 
913         config = &sst_ssp_configs;
914 
915         ctx->ssp_cmd.selection = config->ssp_id;
916         ctx->ssp_cmd.nb_bits_per_slots = config->bits_per_slot;
917         ctx->ssp_cmd.nb_slots = config->slots;
918         ctx->ssp_cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
919         ctx->ssp_cmd.duplex = config->duplex;
920         ctx->ssp_cmd.active_tx_slot_map = config->active_slot_map;
921         ctx->ssp_cmd.active_rx_slot_map = config->active_slot_map;
922         ctx->ssp_cmd.frame_sync_frequency = config->fs_frequency;
923         ctx->ssp_cmd.frame_sync_polarity = config->frame_sync_polarity;
924         ctx->ssp_cmd.data_polarity = config->data_polarity;
925         ctx->ssp_cmd.frame_sync_width = config->fs_width;
926         ctx->ssp_cmd.ssp_protocol = config->ssp_protocol;
927         ctx->ssp_cmd.start_delay = config->start_delay;
928         ctx->ssp_cmd.reserved1 = ctx->ssp_cmd.reserved2 = 0xFF;
929 }
930 
931 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
932 {
933         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
934         const struct sst_ssp_config *config;
935 
936         dev_info(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);
937 
938         SST_FILL_DEFAULT_DESTINATION(drv->ssp_cmd.header.dst);
939         drv->ssp_cmd.header.command_id = SBA_HW_SET_SSP;
940         drv->ssp_cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
941                                 - sizeof(struct sst_dsp_header);
942 
943         config = &sst_ssp_configs;
944         dev_dbg(dai->dev, "ssp_id: %u\n", config->ssp_id);
945 
946         if (enable)
947                 drv->ssp_cmd.switch_state = SST_SWITCH_ON;
948         else
949                 drv->ssp_cmd.switch_state = SST_SWITCH_OFF;
950 
951         return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
952                                 SST_TASK_SBA, 0, &drv->ssp_cmd,
953                                 sizeof(drv->ssp_cmd.header) + drv->ssp_cmd.header.length);
954 }
955 
956 static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
957                          struct snd_kcontrol *k, int event)
958 {
959         int ret = 0;
960         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
961         struct sst_data *drv = snd_soc_component_get_drvdata(c);
962 
963         dev_dbg(c->dev, "Enter: widget=%s\n", w->name);
964 
965         if (SND_SOC_DAPM_EVENT_ON(event)) {
966                 ret = sst_send_slot_map(drv);
967                 if (ret)
968                         return ret;
969                 ret = sst_send_pipe_module_params(w, k);
970         }
971         return ret;
972 }
973 
974 static int sst_set_media_path(struct snd_soc_dapm_widget *w,
975                               struct snd_kcontrol *k, int event)
976 {
977         int ret = 0;
978         struct sst_cmd_set_media_path cmd;
979         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
980         struct sst_data *drv = snd_soc_component_get_drvdata(c);
981         struct sst_ids *ids = w->priv;
982 
983         dev_dbg(c->dev, "widget=%s\n", w->name);
984         dev_dbg(c->dev, "task=%u, location=%#x\n",
985                                 ids->task_id, ids->location_id);
986 
987         if (SND_SOC_DAPM_EVENT_ON(event))
988                 cmd.switch_state = SST_PATH_ON;
989         else
990                 cmd.switch_state = SST_PATH_OFF;
991 
992         SST_FILL_DESTINATION(2, cmd.header.dst,
993                              ids->location_id, SST_DEFAULT_MODULE_ID);
994 
995         /* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
996         cmd.header.command_id = MMX_SET_MEDIA_PATH;
997         cmd.header.length = sizeof(struct sst_cmd_set_media_path)
998                                 - sizeof(struct sst_dsp_header);
999 
1000         ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1001                               ids->task_id, 0, &cmd,
1002                               sizeof(cmd.header) + cmd.header.length);
1003         if (ret)
1004                 return ret;
1005 
1006         if (SND_SOC_DAPM_EVENT_ON(event))
1007                 ret = sst_send_pipe_module_params(w, k);
1008         return ret;
1009 }
1010 
1011 static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
1012                         struct snd_kcontrol *k, int event)
1013 {
1014         int ret = 0;
1015         struct sst_cmd_sba_set_media_loop_map cmd;
1016         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1017         struct sst_data *drv = snd_soc_component_get_drvdata(c);
1018         struct sst_ids *ids = w->priv;
1019 
1020         dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
1021         if (SND_SOC_DAPM_EVENT_ON(event))
1022                 cmd.switch_state = SST_SWITCH_ON;
1023         else
1024                 cmd.switch_state = SST_SWITCH_OFF;
1025 
1026         SST_FILL_DESTINATION(2, cmd.header.dst,
1027                              ids->location_id, SST_DEFAULT_MODULE_ID);
1028 
1029         cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
1030         cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
1031                                  - sizeof(struct sst_dsp_header);
1032         cmd.param.part.cfg.rate = 2; /* 48khz */
1033 
1034         cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
1035         cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
1036         cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */
1037 
1038         ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1039                               SST_TASK_SBA, 0, &cmd,
1040                               sizeof(cmd.header) + cmd.header.length);
1041         if (ret)
1042                 return ret;
1043 
1044         if (SND_SOC_DAPM_EVENT_ON(event))
1045                 ret = sst_send_pipe_module_params(w, k);
1046         return ret;
1047 }
1048 
1049 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
1050         SST_AIF_IN("codec_in0", sst_set_be_modules),
1051         SST_AIF_IN("codec_in1", sst_set_be_modules),
1052         SST_AIF_OUT("codec_out0", sst_set_be_modules),
1053         SST_AIF_OUT("codec_out1", sst_set_be_modules),
1054 
1055         /* Media Paths */
1056         /* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
1057         SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
1058         SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
1059         SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
1060         SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
1061         SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
1062         SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),
1063 
1064         /* SBA PCM Paths */
1065         SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
1066         SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
1067         SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
1068         SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
1069         SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),
1070 
1071         /* SBA Loops */
1072         SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
1073         SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
1074         SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
1075         SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_MONO, sst_set_media_loop),
1076         SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_MONO, sst_set_media_loop),
1077         SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),
1078 
1079         /* Media Mixers */
1080         SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
1081                       sst_mix_media0_controls, sst_swm_mixer_event),
1082         SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
1083                       sst_mix_media1_controls, sst_swm_mixer_event),
1084 
1085         /* SBA PCM mixers */
1086         SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
1087                       sst_mix_pcm0_controls, sst_swm_mixer_event),
1088         SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
1089                       sst_mix_pcm1_controls, sst_swm_mixer_event),
1090         SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
1091                       sst_mix_pcm2_controls, sst_swm_mixer_event),
1092 
1093         /* SBA Loop mixers */
1094         SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
1095                       sst_mix_sprot_l0_controls, sst_swm_mixer_event),
1096         SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
1097                       sst_mix_media_l1_controls, sst_swm_mixer_event),
1098         SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
1099                       sst_mix_media_l2_controls, sst_swm_mixer_event),
1100 
1101         /* SBA Backend mixers */
1102         SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
1103                       sst_mix_codec0_controls, sst_swm_mixer_event),
1104         SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
1105                       sst_mix_codec1_controls, sst_swm_mixer_event),
1106 };
1107 
1108 static const struct snd_soc_dapm_route intercon[] = {
1109         {"media0_in", NULL, "Compress Playback"},
1110         {"media1_in", NULL, "Headset Playback"},
1111         {"media2_in", NULL, "pcm0_out"},
1112         {"media3_in", NULL, "Deepbuffer Playback"},
1113 
1114         {"media0_out mix 0", "media0_in Switch", "media0_in"},
1115         {"media0_out mix 0", "media1_in Switch", "media1_in"},
1116         {"media0_out mix 0", "media2_in Switch", "media2_in"},
1117         {"media0_out mix 0", "media3_in Switch", "media3_in"},
1118         {"media1_out mix 0", "media0_in Switch", "media0_in"},
1119         {"media1_out mix 0", "media1_in Switch", "media1_in"},
1120         {"media1_out mix 0", "media2_in Switch", "media2_in"},
1121         {"media1_out mix 0", "media3_in Switch", "media3_in"},
1122 
1123         {"media0_out", NULL, "media0_out mix 0"},
1124         {"media1_out", NULL, "media1_out mix 0"},
1125         {"pcm0_in", NULL, "media0_out"},
1126         {"pcm1_in", NULL, "media1_out"},
1127 
1128         {"Headset Capture", NULL, "pcm1_out"},
1129         {"Headset Capture", NULL, "pcm2_out"},
1130         {"pcm0_out", NULL, "pcm0_out mix 0"},
1131         SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
1132         {"pcm1_out", NULL, "pcm1_out mix 0"},
1133         SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
1134         {"pcm2_out", NULL, "pcm2_out mix 0"},
1135         SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),
1136 
1137         {"media_loop1_in", NULL, "media_loop1_out"},
1138         {"media_loop1_out", NULL, "media_loop1_out mix 0"},
1139         SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
1140         {"media_loop2_in", NULL, "media_loop2_out"},
1141         {"media_loop2_out", NULL, "media_loop2_out mix 0"},
1142         SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
1143         {"sprot_loop_in", NULL, "sprot_loop_out"},
1144         {"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
1145         SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),
1146 
1147         {"codec_out0", NULL, "codec_out0 mix 0"},
1148         SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
1149         {"codec_out1", NULL, "codec_out1 mix 0"},
1150         SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
1151 
1152 };
1153 static const char * const slot_names[] = {
1154         "none",
1155         "slot 0", "slot 1", "slot 2", "slot 3",
1156         "slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
1157 };
1158 
1159 static const char * const channel_names[] = {
1160         "none",
1161         "codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
1162         "codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
1163 };
1164 
1165 #define SST_INTERLEAVER(xpname, slot_name, slotno) \
1166         SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
1167                          channel_names, sst_slot_get, sst_slot_put)
1168 
1169 #define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
1170         SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
1171                          slot_names, sst_slot_get, sst_slot_put)
1172 
1173 static const struct snd_kcontrol_new sst_slot_controls[] = {
1174         SST_INTERLEAVER("codec_out", "slot 0", 0),
1175         SST_INTERLEAVER("codec_out", "slot 1", 1),
1176         SST_INTERLEAVER("codec_out", "slot 2", 2),
1177         SST_INTERLEAVER("codec_out", "slot 3", 3),
1178         SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
1179         SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
1180         SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
1181         SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
1182 };
1183 
1184 /* Gain helper with min/max set */
1185 #define SST_GAIN(name, path_id, task_id, instance, gain_var)                            \
1186         SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,        \
1187                 SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,                                       \
1188                 sst_gain_get, sst_gain_put,                                             \
1189                 SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,                    \
1190                 sst_gain_tlv_common, gain_var)
1191 
1192 #define SST_VOLUME(name, path_id, task_id, instance, gain_var)                          \
1193         SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,      \
1194                 SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,                                       \
1195                 sst_gain_get, sst_gain_put,                                             \
1196                 SST_MODULE_ID_VOLUME, path_id, instance, task_id,                       \
1197                 sst_gain_tlv_common, gain_var)
1198 
1199 static struct sst_gain_value sst_gains[];
1200 
1201 static const struct snd_kcontrol_new sst_gain_controls[] = {
1202         SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
1203         SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
1204         SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
1205         SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),
1206 
1207         SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
1208         SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
1209         SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
1210         SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),
1211 
1212         SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
1213         SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
1214         SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
1215         SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
1216         SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
1217         SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
1218         SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
1219         SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
1220 };
1221 
1222 #define SST_GAIN_NUM_CONTROLS 3
1223 /* the SST_GAIN macro above will create three alsa controls for each
1224  * instance invoked, gain, mute and ramp duration, which use the same gain
1225  * cell sst_gain to keep track of data
1226  * To calculate number of gain cell instances we need to device by 3 in
1227  * below caulcation for gain cell memory.
1228  * This gets rid of static number and issues while adding new controls
1229  */
1230 static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];
1231 
1232 static const struct snd_kcontrol_new sst_algo_controls[] = {
1233         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
1234                  SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1235         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
1236                 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1237         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1238                 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1239         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
1240                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1241         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
1242                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1243         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1244                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1245         SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
1246                 SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
1247         SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1248                 SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1249         SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1250                 SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1251 
1252 };
1253 
1254 static int sst_algo_control_init(struct device *dev)
1255 {
1256         int i = 0;
1257         struct sst_algo_control *bc;
1258         /*allocate space to cache the algo parameters in the driver*/
1259         for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
1260                 bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
1261                 bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
1262                 if (bc->params == NULL)
1263                         return -ENOMEM;
1264         }
1265         return 0;
1266 }
1267 
1268 static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
1269 {
1270         switch (w->id) {
1271         case snd_soc_dapm_pga:
1272         case snd_soc_dapm_aif_in:
1273         case snd_soc_dapm_aif_out:
1274         case snd_soc_dapm_input:
1275         case snd_soc_dapm_output:
1276         case snd_soc_dapm_mixer:
1277                 return true;
1278         default:
1279                 return false;
1280         }
1281 }
1282 
1283 /**
1284  * sst_send_pipe_gains - send gains for the front-end DAIs
1285  *
1286  * The gains in the pipes connected to the front-ends are muted/unmuted
1287  * automatically via the digital_mute() DAPM callback. This function sends the
1288  * gains for the front-end pipes.
1289  */
1290 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
1291 {
1292         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
1293         struct snd_soc_dapm_widget *w;
1294         struct snd_soc_dapm_path *p = NULL;
1295 
1296         dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);
1297 
1298         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1299                 dev_dbg(dai->dev, "Stream name=%s\n",
1300                                 dai->playback_widget->name);
1301                 w = dai->playback_widget;
1302                 snd_soc_dapm_widget_for_each_sink_path(w, p) {
1303                         if (p->connected && !p->connected(w, p->sink))
1304                                 continue;
1305 
1306                         if (p->connect && p->sink->power &&
1307                                         is_sst_dapm_widget(p->sink)) {
1308                                 struct sst_ids *ids = p->sink->priv;
1309 
1310                                 dev_dbg(dai->dev, "send gains for widget=%s\n",
1311                                                 p->sink->name);
1312                                 mutex_lock(&drv->lock);
1313                                 sst_set_pipe_gain(ids, drv, mute);
1314                                 mutex_unlock(&drv->lock);
1315                         }
1316                 }
1317         } else {
1318                 dev_dbg(dai->dev, "Stream name=%s\n",
1319                                 dai->capture_widget->name);
1320                 w = dai->capture_widget;
1321                 snd_soc_dapm_widget_for_each_source_path(w, p) {
1322                         if (p->connected && !p->connected(w, p->sink))
1323                                 continue;
1324 
1325                         if (p->connect &&  p->source->power &&
1326                                         is_sst_dapm_widget(p->source)) {
1327                                 struct sst_ids *ids = p->source->priv;
1328 
1329                                 dev_dbg(dai->dev, "send gain for widget=%s\n",
1330                                                 p->source->name);
1331                                 mutex_lock(&drv->lock);
1332                                 sst_set_pipe_gain(ids, drv, mute);
1333                                 mutex_unlock(&drv->lock);
1334                         }
1335                 }
1336         }
1337         return 0;
1338 }
1339 
1340 /**
1341  * sst_fill_module_list - populate the list of modules/gains for a pipe
1342  *
1343  *
1344  * Fills the widget pointer in the kcontrol private data, and also fills the
1345  * kcontrol pointer in the widget private data.
1346  *
1347  * Widget pointer is used to send the algo/gain in the .put() handler if the
1348  * widget is powerd on.
1349  *
1350  * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
1351  * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
1352  */
1353 static int sst_fill_module_list(struct snd_kcontrol *kctl,
1354          struct snd_soc_dapm_widget *w, int type)
1355 {
1356         struct sst_module *module = NULL;
1357         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1358         struct sst_ids *ids = w->priv;
1359         int ret = 0;
1360 
1361         module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
1362         if (!module)
1363                 return -ENOMEM;
1364 
1365         if (type == SST_MODULE_GAIN) {
1366                 struct sst_gain_mixer_control *mc = (void *)kctl->private_value;
1367 
1368                 mc->w = w;
1369                 module->kctl = kctl;
1370                 list_add_tail(&module->node, &ids->gain_list);
1371         } else if (type == SST_MODULE_ALGO) {
1372                 struct sst_algo_control *bc = (void *)kctl->private_value;
1373 
1374                 bc->w = w;
1375                 module->kctl = kctl;
1376                 list_add_tail(&module->node, &ids->algo_list);
1377         } else {
1378                 dev_err(c->dev, "invoked for unknown type %d module %s",
1379                                 type, kctl->id.name);
1380                 ret = -EINVAL;
1381         }
1382 
1383         return ret;
1384 }
1385 
1386 /**
1387  * sst_fill_widget_module_info - fill list of gains/algos for the pipe
1388  * @widget:     pipe modelled as a DAPM widget
1389  *
1390  * Fill the list of gains/algos for the widget by looking at all the card
1391  * controls and comparing the name of the widget with the first part of control
1392  * name. First part of control name contains the pipe name (widget name).
1393  */
1394 static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
1395         struct snd_soc_platform *platform)
1396 {
1397         struct snd_kcontrol *kctl;
1398         int index, ret = 0;
1399         struct snd_card *card = platform->component.card->snd_card;
1400         char *idx;
1401 
1402         down_read(&card->controls_rwsem);
1403 
1404         list_for_each_entry(kctl, &card->controls, list) {
1405                 idx = strchr(kctl->id.name, ' ');
1406                 if (idx == NULL)
1407                         continue;
1408                 index = idx - (char*)kctl->id.name;
1409                 if (strncmp(kctl->id.name, w->name, index))
1410                         continue;
1411 
1412                 if (strstr(kctl->id.name, "Volume"))
1413                         ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
1414 
1415                 else if (strstr(kctl->id.name, "params"))
1416                         ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
1417 
1418                 else if (strstr(kctl->id.name, "Switch") &&
1419                          strstr(kctl->id.name, "Gain")) {
1420                         struct sst_gain_mixer_control *mc =
1421                                                 (void *)kctl->private_value;
1422 
1423                         mc->w = w;
1424 
1425                 } else if (strstr(kctl->id.name, "interleaver")) {
1426                         struct sst_enum *e = (void *)kctl->private_value;
1427 
1428                         e->w = w;
1429 
1430                 } else if (strstr(kctl->id.name, "deinterleaver")) {
1431                         struct sst_enum *e = (void *)kctl->private_value;
1432 
1433                         e->w = w;
1434                 }
1435 
1436                 if (ret < 0) {
1437                         up_read(&card->controls_rwsem);
1438                         return ret;
1439                 }
1440         }
1441 
1442         up_read(&card->controls_rwsem);
1443         return 0;
1444 }
1445 
1446 /**
1447  * sst_fill_linked_widgets - fill the parent pointer for the linked widget
1448  */
1449 static void sst_fill_linked_widgets(struct snd_soc_platform *platform,
1450                                                 struct sst_ids *ids)
1451 {
1452         struct snd_soc_dapm_widget *w;
1453         unsigned int len = strlen(ids->parent_wname);
1454 
1455         list_for_each_entry(w, &platform->component.card->widgets, list) {
1456                 if (!strncmp(ids->parent_wname, w->name, len)) {
1457                         ids->parent_w = w;
1458                         break;
1459                 }
1460         }
1461 }
1462 
1463 /**
1464  * sst_map_modules_to_pipe - fill algo/gains list for all pipes
1465  */
1466 static int sst_map_modules_to_pipe(struct snd_soc_platform *platform)
1467 {
1468         struct snd_soc_dapm_widget *w;
1469         int ret = 0;
1470 
1471         list_for_each_entry(w, &platform->component.card->widgets, list) {
1472                 if (is_sst_dapm_widget(w) && (w->priv)) {
1473                         struct sst_ids *ids = w->priv;
1474 
1475                         dev_dbg(platform->dev, "widget type=%d name=%s\n",
1476                                         w->id, w->name);
1477                         INIT_LIST_HEAD(&ids->algo_list);
1478                         INIT_LIST_HEAD(&ids->gain_list);
1479                         ret = sst_fill_widget_module_info(w, platform);
1480 
1481                         if (ret < 0)
1482                                 return ret;
1483 
1484                         /* fill linked widgets */
1485                         if (ids->parent_wname !=  NULL)
1486                                 sst_fill_linked_widgets(platform, ids);
1487                 }
1488         }
1489         return 0;
1490 }
1491 
1492 int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)
1493 {
1494         int i, ret = 0;
1495         struct snd_soc_dapm_context *dapm =
1496                         snd_soc_component_get_dapm(&platform->component);
1497         struct sst_data *drv = snd_soc_platform_get_drvdata(platform);
1498         unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;
1499 
1500         drv->byte_stream = devm_kzalloc(platform->dev,
1501                                         SST_MAX_BIN_BYTES, GFP_KERNEL);
1502         if (!drv->byte_stream)
1503                 return -ENOMEM;
1504 
1505         snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
1506                         ARRAY_SIZE(sst_dapm_widgets));
1507         snd_soc_dapm_add_routes(dapm, intercon,
1508                         ARRAY_SIZE(intercon));
1509         snd_soc_dapm_new_widgets(dapm->card);
1510 
1511         for (i = 0; i < gains; i++) {
1512                 sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
1513                 sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
1514                 sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
1515                 sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
1516         }
1517 
1518         ret = snd_soc_add_platform_controls(platform, sst_gain_controls,
1519                         ARRAY_SIZE(sst_gain_controls));
1520         if (ret)
1521                 return ret;
1522 
1523         /* Initialize algo control params */
1524         ret = sst_algo_control_init(platform->dev);
1525         if (ret)
1526                 return ret;
1527         ret = snd_soc_add_platform_controls(platform, sst_algo_controls,
1528                         ARRAY_SIZE(sst_algo_controls));
1529         if (ret)
1530                 return ret;
1531 
1532         ret = snd_soc_add_platform_controls(platform, sst_slot_controls,
1533                         ARRAY_SIZE(sst_slot_controls));
1534         if (ret)
1535                 return ret;
1536 
1537         ret = sst_map_modules_to_pipe(platform);
1538 
1539         return ret;
1540 }
1541 

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