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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 if (!e->w)
199                 dev_err(&drv->pdev->dev, "Slot control: %s doesn't have DAPM widget!!!\n",
200                                 kcontrol->id.name);
201         return ret;
202 }
203 
204 /**
205  * sst_slot_put - set the status of interleaver/deinterleaver control
206  *
207  * (de)interleaver controls are defined in opposite sense to be user-friendly
208  *
209  * Instead of the enum value being the value written to the register, it is the
210  * register address; and the kcontrol number (register num) is the value written
211  * to the register. This is so that there can be only one value for each
212  * slot/channel since there is only one control for each slot/channel.
213  *
214  * This means that whenever an enum is set, we need to clear the bit
215  * for that kcontrol_no for all the interleaver OR deinterleaver registers
216  */
217 static int sst_slot_put(struct snd_kcontrol *kcontrol,
218                         struct snd_ctl_elem_value *ucontrol)
219 {
220         struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
221         struct sst_data *drv = snd_soc_component_get_drvdata(c);
222         struct sst_enum *e = (void *)kcontrol->private_value;
223         int i, ret = 0;
224         unsigned int ctl_no = e->reg;
225         unsigned int is_tx = e->tx;
226         unsigned int slot_channel_no;
227         unsigned int val, mux;
228         u8 *map;
229 
230         map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;
231 
232         val = 1 << ctl_no;
233         mux = ucontrol->value.enumerated.item[0];
234         if (mux > e->max - 1)
235                 return -EINVAL;
236 
237         mutex_lock(&drv->lock);
238         /* first clear all registers of this bit */
239         for (i = 0; i < e->max; i++)
240                 map[i] &= ~val;
241 
242         if (mux == 0) {
243                 /* kctl set to 'none' and we reset the bits so send IPC */
244                 ret = sst_check_and_send_slot_map(drv, kcontrol);
245 
246                 mutex_unlock(&drv->lock);
247                 return ret;
248         }
249 
250         /* offset by one to take "None" into account */
251         slot_channel_no = mux - 1;
252         map[slot_channel_no] |= val;
253 
254         dev_dbg(c->dev, "%s %s map = %#x\n",
255                         is_tx ? "tx channel" : "rx slot",
256                         e->texts[mux], map[slot_channel_no]);
257 
258         ret = sst_check_and_send_slot_map(drv, kcontrol);
259 
260         mutex_unlock(&drv->lock);
261         return ret;
262 }
263 
264 static int sst_send_algo_cmd(struct sst_data *drv,
265                               struct sst_algo_control *bc)
266 {
267         int len, ret = 0;
268         struct sst_cmd_set_params *cmd;
269 
270         /*bc->max includes sizeof algos + length field*/
271         len = sizeof(cmd->dst) + sizeof(cmd->command_id) + bc->max;
272 
273         cmd = kzalloc(len, GFP_KERNEL);
274         if (cmd == NULL)
275                 return -ENOMEM;
276 
277         SST_FILL_DESTINATION(2, cmd->dst, bc->pipe_id, bc->module_id);
278         cmd->command_id = bc->cmd_id;
279         memcpy(cmd->params, bc->params, bc->max);
280 
281         ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
282                                 SST_FLAG_BLOCKED, bc->task_id, 0, cmd, len);
283         kfree(cmd);
284         return ret;
285 }
286 
287 /**
288  * sst_find_and_send_pipe_algo - send all the algo parameters for a pipe
289  *
290  * The algos which are in each pipeline are sent to the firmware one by one
291  *
292  * Called with lock held
293  */
294 static int sst_find_and_send_pipe_algo(struct sst_data *drv,
295                                         const char *pipe, struct sst_ids *ids)
296 {
297         int ret = 0;
298         struct sst_algo_control *bc;
299         struct sst_module *algo = NULL;
300 
301         dev_dbg(&drv->pdev->dev, "Enter: widget=%s\n", pipe);
302 
303         list_for_each_entry(algo, &ids->algo_list, node) {
304                 bc = (void *)algo->kctl->private_value;
305 
306                 dev_dbg(&drv->pdev->dev, "Found algo control name=%s pipe=%s\n",
307                                 algo->kctl->id.name, pipe);
308                 ret = sst_send_algo_cmd(drv, bc);
309                 if (ret)
310                         return ret;
311         }
312         return ret;
313 }
314 
315 static int sst_algo_bytes_ctl_info(struct snd_kcontrol *kcontrol,
316                             struct snd_ctl_elem_info *uinfo)
317 {
318         struct sst_algo_control *bc = (void *)kcontrol->private_value;
319 
320         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
321         uinfo->count = bc->max;
322 
323         return 0;
324 }
325 
326 static int sst_algo_control_get(struct snd_kcontrol *kcontrol,
327                                 struct snd_ctl_elem_value *ucontrol)
328 {
329         struct sst_algo_control *bc = (void *)kcontrol->private_value;
330         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
331 
332         switch (bc->type) {
333         case SST_ALGO_PARAMS:
334                 memcpy(ucontrol->value.bytes.data, bc->params, bc->max);
335                 break;
336         default:
337                 dev_err(component->dev, "Invalid Input- algo type:%d\n",
338                                 bc->type);
339                 return -EINVAL;
340 
341         }
342         return 0;
343 }
344 
345 static int sst_algo_control_set(struct snd_kcontrol *kcontrol,
346                                 struct snd_ctl_elem_value *ucontrol)
347 {
348         int ret = 0;
349         struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
350         struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
351         struct sst_algo_control *bc = (void *)kcontrol->private_value;
352 
353         dev_dbg(cmpnt->dev, "control_name=%s\n", kcontrol->id.name);
354         mutex_lock(&drv->lock);
355         switch (bc->type) {
356         case SST_ALGO_PARAMS:
357                 memcpy(bc->params, ucontrol->value.bytes.data, bc->max);
358                 break;
359         default:
360                 mutex_unlock(&drv->lock);
361                 dev_err(cmpnt->dev, "Invalid Input- algo type:%d\n",
362                                 bc->type);
363                 return -EINVAL;
364         }
365         /*if pipe is enabled, need to send the algo params from here*/
366         if (bc->w && bc->w->power)
367                 ret = sst_send_algo_cmd(drv, bc);
368         mutex_unlock(&drv->lock);
369 
370         return ret;
371 }
372 
373 static int sst_gain_ctl_info(struct snd_kcontrol *kcontrol,
374         struct snd_ctl_elem_info *uinfo)
375 {
376         struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
377 
378         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
379         uinfo->count = mc->stereo ? 2 : 1;
380         uinfo->value.integer.min = mc->min;
381         uinfo->value.integer.max = mc->max;
382 
383         return 0;
384 }
385 
386 /**
387  * sst_send_gain_cmd - send the gain algorithm IPC to the FW
388  * @gv:         the stored value of gain (also contains rampduration)
389  * @mute:       flag that indicates whether this was called from the
390  *              digital_mute callback or directly. If called from the
391  *              digital_mute callback, module will be muted/unmuted based on this
392  *              flag. The flag is always 0 if called directly.
393  *
394  * Called with sst_data.lock held
395  *
396  * The user-set gain value is sent only if the user-controllable 'mute' control
397  * is OFF (indicated by gv->mute). Otherwise, the mute value (MIN value) is
398  * sent.
399  */
400 static int sst_send_gain_cmd(struct sst_data *drv, struct sst_gain_value *gv,
401                               u16 task_id, u16 loc_id, u16 module_id, int mute)
402 {
403         struct sst_cmd_set_gain_dual cmd;
404 
405         dev_dbg(&drv->pdev->dev, "Enter\n");
406 
407         cmd.header.command_id = MMX_SET_GAIN;
408         SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
409         cmd.gain_cell_num = 1;
410 
411         if (mute || gv->mute) {
412                 cmd.cell_gains[0].cell_gain_left = SST_GAIN_MIN_VALUE;
413                 cmd.cell_gains[0].cell_gain_right = SST_GAIN_MIN_VALUE;
414         } else {
415                 cmd.cell_gains[0].cell_gain_left = gv->l_gain;
416                 cmd.cell_gains[0].cell_gain_right = gv->r_gain;
417         }
418 
419         SST_FILL_DESTINATION(2, cmd.cell_gains[0].dest,
420                              loc_id, module_id);
421         cmd.cell_gains[0].gain_time_constant = gv->ramp_duration;
422 
423         cmd.header.length = sizeof(struct sst_cmd_set_gain_dual)
424                                 - sizeof(struct sst_dsp_header);
425 
426         /* we are with lock held, so call the unlocked api  to send */
427         return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,
428                                 SST_FLAG_BLOCKED, task_id, 0, &cmd,
429                               sizeof(cmd.header) + cmd.header.length);
430 }
431 
432 static int sst_gain_get(struct snd_kcontrol *kcontrol,
433                         struct snd_ctl_elem_value *ucontrol)
434 {
435         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
436         struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
437         struct sst_gain_value *gv = mc->gain_val;
438 
439         switch (mc->type) {
440         case SST_GAIN_TLV:
441                 ucontrol->value.integer.value[0] = gv->l_gain;
442                 ucontrol->value.integer.value[1] = gv->r_gain;
443                 break;
444 
445         case SST_GAIN_MUTE:
446                 ucontrol->value.integer.value[0] = gv->mute ? 0 : 1;
447                 break;
448 
449         case SST_GAIN_RAMP_DURATION:
450                 ucontrol->value.integer.value[0] = gv->ramp_duration;
451                 break;
452 
453         default:
454                 dev_err(component->dev, "Invalid Input- gain type:%d\n",
455                                 mc->type);
456                 return -EINVAL;
457         }
458 
459         return 0;
460 }
461 
462 static int sst_gain_put(struct snd_kcontrol *kcontrol,
463                         struct snd_ctl_elem_value *ucontrol)
464 {
465         int ret = 0;
466         struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
467         struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
468         struct sst_gain_mixer_control *mc = (void *)kcontrol->private_value;
469         struct sst_gain_value *gv = mc->gain_val;
470 
471         mutex_lock(&drv->lock);
472 
473         switch (mc->type) {
474         case SST_GAIN_TLV:
475                 gv->l_gain = ucontrol->value.integer.value[0];
476                 gv->r_gain = ucontrol->value.integer.value[1];
477                 dev_dbg(cmpnt->dev, "%s: Volume %d, %d\n",
478                                 mc->pname, gv->l_gain, gv->r_gain);
479                 break;
480 
481         case SST_GAIN_MUTE:
482                 gv->mute = !ucontrol->value.integer.value[0];
483                 dev_dbg(cmpnt->dev, "%s: Mute %d\n", mc->pname, gv->mute);
484                 break;
485 
486         case SST_GAIN_RAMP_DURATION:
487                 gv->ramp_duration = ucontrol->value.integer.value[0];
488                 dev_dbg(cmpnt->dev, "%s: Ramp Delay%d\n",
489                                         mc->pname, gv->ramp_duration);
490                 break;
491 
492         default:
493                 mutex_unlock(&drv->lock);
494                 dev_err(cmpnt->dev, "Invalid Input- gain type:%d\n",
495                                 mc->type);
496                 return -EINVAL;
497         }
498 
499         if (mc->w && mc->w->power)
500                 ret = sst_send_gain_cmd(drv, gv, mc->task_id,
501                         mc->pipe_id | mc->instance_id, mc->module_id, 0);
502         mutex_unlock(&drv->lock);
503 
504         return ret;
505 }
506 
507 static int sst_set_pipe_gain(struct sst_ids *ids,
508                                 struct sst_data *drv, int mute);
509 
510 static int sst_send_pipe_module_params(struct snd_soc_dapm_widget *w,
511                 struct snd_kcontrol *kcontrol)
512 {
513         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
514         struct sst_data *drv = snd_soc_component_get_drvdata(c);
515         struct sst_ids *ids = w->priv;
516 
517         mutex_lock(&drv->lock);
518         sst_find_and_send_pipe_algo(drv, w->name, ids);
519         sst_set_pipe_gain(ids, drv, 0);
520         mutex_unlock(&drv->lock);
521 
522         return 0;
523 }
524 
525 static int sst_generic_modules_event(struct snd_soc_dapm_widget *w,
526                                      struct snd_kcontrol *k, int event)
527 {
528         if (SND_SOC_DAPM_EVENT_ON(event))
529                 return sst_send_pipe_module_params(w, k);
530         return 0;
531 }
532 
533 static const DECLARE_TLV_DB_SCALE(sst_gain_tlv_common, SST_GAIN_MIN_VALUE * 10, 10, 0);
534 
535 /* Look up table to convert MIXER SW bit regs to SWM inputs */
536 static const uint swm_mixer_input_ids[SST_SWM_INPUT_COUNT] = {
537         [SST_IP_MODEM]          = SST_SWM_IN_MODEM,
538         [SST_IP_CODEC0]         = SST_SWM_IN_CODEC0,
539         [SST_IP_CODEC1]         = SST_SWM_IN_CODEC1,
540         [SST_IP_LOOP0]          = SST_SWM_IN_SPROT_LOOP,
541         [SST_IP_LOOP1]          = SST_SWM_IN_MEDIA_LOOP1,
542         [SST_IP_LOOP2]          = SST_SWM_IN_MEDIA_LOOP2,
543         [SST_IP_PCM0]           = SST_SWM_IN_PCM0,
544         [SST_IP_PCM1]           = SST_SWM_IN_PCM1,
545         [SST_IP_MEDIA0]         = SST_SWM_IN_MEDIA0,
546         [SST_IP_MEDIA1]         = SST_SWM_IN_MEDIA1,
547         [SST_IP_MEDIA2]         = SST_SWM_IN_MEDIA2,
548         [SST_IP_MEDIA3]         = SST_SWM_IN_MEDIA3,
549 };
550 
551 /**
552  * fill_swm_input - fill in the SWM input ids given the register
553  *
554  * The register value is a bit-field inicated which mixer inputs are ON. Use the
555  * lookup table to get the input-id and fill it in the structure.
556  */
557 static int fill_swm_input(struct snd_soc_component *cmpnt,
558                 struct swm_input_ids *swm_input, unsigned int reg)
559 {
560         uint i, is_set, nb_inputs = 0;
561         u16 input_loc_id;
562 
563         dev_dbg(cmpnt->dev, "reg: %#x\n", reg);
564         for (i = 0; i < SST_SWM_INPUT_COUNT; i++) {
565                 is_set = reg & BIT(i);
566                 if (!is_set)
567                         continue;
568 
569                 input_loc_id = swm_mixer_input_ids[i];
570                 SST_FILL_DESTINATION(2, swm_input->input_id,
571                                      input_loc_id, SST_DEFAULT_MODULE_ID);
572                 nb_inputs++;
573                 swm_input++;
574                 dev_dbg(cmpnt->dev, "input id: %#x, nb_inputs: %d\n",
575                                 input_loc_id, nb_inputs);
576 
577                 if (nb_inputs == SST_CMD_SWM_MAX_INPUTS) {
578                         dev_warn(cmpnt->dev, "SET_SWM cmd max inputs reached");
579                         break;
580                 }
581         }
582         return nb_inputs;
583 }
584 
585 
586 /**
587  * called with lock held
588  */
589 static int sst_set_pipe_gain(struct sst_ids *ids,
590                         struct sst_data *drv, int mute)
591 {
592         int ret = 0;
593         struct sst_gain_mixer_control *mc;
594         struct sst_gain_value *gv;
595         struct sst_module *gain = NULL;
596 
597         list_for_each_entry(gain, &ids->gain_list, node) {
598                 struct snd_kcontrol *kctl = gain->kctl;
599 
600                 dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);
601                 mc = (void *)kctl->private_value;
602                 gv = mc->gain_val;
603 
604                 ret = sst_send_gain_cmd(drv, gv, mc->task_id,
605                         mc->pipe_id | mc->instance_id, mc->module_id, mute);
606                 if (ret)
607                         return ret;
608         }
609         return ret;
610 }
611 
612 static int sst_swm_mixer_event(struct snd_soc_dapm_widget *w,
613                         struct snd_kcontrol *k, int event)
614 {
615         struct sst_cmd_set_swm cmd;
616         struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
617         struct sst_data *drv = snd_soc_component_get_drvdata(cmpnt);
618         struct sst_ids *ids = w->priv;
619         bool set_mixer = false;
620         struct soc_mixer_control *mc;
621         int val = 0;
622         int i = 0;
623 
624         dev_dbg(cmpnt->dev, "widget = %s\n", w->name);
625         /*
626          * Identify which mixer input is on and send the bitmap of the
627          * inputs as an IPC to the DSP.
628          */
629         for (i = 0; i < w->num_kcontrols; i++) {
630                 if (dapm_kcontrol_get_value(w->kcontrols[i])) {
631                         mc = (struct soc_mixer_control *)(w->kcontrols[i])->private_value;
632                         val |= 1 << mc->shift;
633                 }
634         }
635         dev_dbg(cmpnt->dev, "val = %#x\n", val);
636 
637         switch (event) {
638         case SND_SOC_DAPM_PRE_PMU:
639         case SND_SOC_DAPM_POST_PMD:
640                 set_mixer = true;
641                 break;
642         case SND_SOC_DAPM_POST_REG:
643                 if (w->power)
644                         set_mixer = true;
645                 break;
646         default:
647                 set_mixer = false;
648         }
649 
650         if (set_mixer == false)
651                 return 0;
652 
653         if (SND_SOC_DAPM_EVENT_ON(event) ||
654             event == SND_SOC_DAPM_POST_REG)
655                 cmd.switch_state = SST_SWM_ON;
656         else
657                 cmd.switch_state = SST_SWM_OFF;
658 
659         SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
660         /* MMX_SET_SWM == SBA_SET_SWM */
661         cmd.header.command_id = SBA_SET_SWM;
662 
663         SST_FILL_DESTINATION(2, cmd.output_id,
664                              ids->location_id, SST_DEFAULT_MODULE_ID);
665         cmd.nb_inputs = fill_swm_input(cmpnt, &cmd.input[0], val);
666         cmd.header.length = offsetof(struct sst_cmd_set_swm, input)
667                                 - sizeof(struct sst_dsp_header)
668                                 + (cmd.nb_inputs * sizeof(cmd.input[0]));
669 
670         return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
671                               ids->task_id, 0, &cmd,
672                               sizeof(cmd.header) + cmd.header.length);
673 }
674 
675 /* SBA mixers - 16 inputs */
676 #define SST_SBA_DECLARE_MIX_CONTROLS(kctl_name)                                                 \
677         static const struct snd_kcontrol_new kctl_name[] = {                                    \
678                 SOC_DAPM_SINGLE("modem_in Switch", SND_SOC_NOPM, SST_IP_MODEM, 1, 0),           \
679                 SOC_DAPM_SINGLE("codec_in0 Switch", SND_SOC_NOPM, SST_IP_CODEC0, 1, 0),         \
680                 SOC_DAPM_SINGLE("codec_in1 Switch", SND_SOC_NOPM, SST_IP_CODEC1, 1, 0),         \
681                 SOC_DAPM_SINGLE("sprot_loop_in Switch", SND_SOC_NOPM, SST_IP_LOOP0, 1, 0),      \
682                 SOC_DAPM_SINGLE("media_loop1_in Switch", SND_SOC_NOPM, SST_IP_LOOP1, 1, 0),     \
683                 SOC_DAPM_SINGLE("media_loop2_in Switch", SND_SOC_NOPM, SST_IP_LOOP2, 1, 0),     \
684                 SOC_DAPM_SINGLE("pcm0_in Switch", SND_SOC_NOPM, SST_IP_PCM0, 1, 0),             \
685                 SOC_DAPM_SINGLE("pcm1_in Switch", SND_SOC_NOPM, SST_IP_PCM1, 1, 0),             \
686         }
687 
688 #define SST_SBA_MIXER_GRAPH_MAP(mix_name)                       \
689         { mix_name, "modem_in Switch",  "modem_in" },           \
690         { mix_name, "codec_in0 Switch", "codec_in0" },          \
691         { mix_name, "codec_in1 Switch", "codec_in1" },          \
692         { mix_name, "sprot_loop_in Switch",     "sprot_loop_in" },      \
693         { mix_name, "media_loop1_in Switch",    "media_loop1_in" },     \
694         { mix_name, "media_loop2_in Switch",    "media_loop2_in" },     \
695         { mix_name, "pcm0_in Switch",           "pcm0_in" },            \
696         { mix_name, "pcm1_in Switch",           "pcm1_in" }
697 
698 #define SST_MMX_DECLARE_MIX_CONTROLS(kctl_name)                                         \
699         static const struct snd_kcontrol_new kctl_name[] = {                            \
700                 SOC_DAPM_SINGLE("media0_in Switch", SND_SOC_NOPM, SST_IP_MEDIA0, 1, 0), \
701                 SOC_DAPM_SINGLE("media1_in Switch", SND_SOC_NOPM, SST_IP_MEDIA1, 1, 0), \
702                 SOC_DAPM_SINGLE("media2_in Switch", SND_SOC_NOPM, SST_IP_MEDIA2, 1, 0), \
703                 SOC_DAPM_SINGLE("media3_in Switch", SND_SOC_NOPM, SST_IP_MEDIA3, 1, 0), \
704         }
705 
706 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media0_controls);
707 SST_MMX_DECLARE_MIX_CONTROLS(sst_mix_media1_controls);
708 
709 /* 18 SBA mixers */
710 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm0_controls);
711 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm1_controls);
712 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_pcm2_controls);
713 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_sprot_l0_controls);
714 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l1_controls);
715 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_media_l2_controls);
716 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_voip_controls);
717 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec0_controls);
718 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_codec1_controls);
719 SST_SBA_DECLARE_MIX_CONTROLS(sst_mix_modem_controls);
720 
721 /*
722  * sst_handle_vb_timer - Start/Stop the DSP scheduler
723  *
724  * The DSP expects first cmd to be SBA_VB_START, so at first startup send
725  * that.
726  * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.
727  *
728  * Do refcount internally so that we send command only at first start
729  * and last end. Since SST driver does its own ref count, invoke sst's
730  * power ops always!
731  */
732 int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)
733 {
734         int ret = 0;
735         struct sst_cmd_generic cmd;
736         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
737         static int timer_usage;
738 
739         if (enable)
740                 cmd.header.command_id = SBA_VB_START;
741         else
742                 cmd.header.command_id = SBA_IDLE;
743         dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);
744 
745         SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);
746         cmd.header.length = 0;
747 
748         if (enable) {
749                 ret = sst->ops->power(sst->dev, true);
750                 if (ret < 0)
751                         return ret;
752         }
753 
754         mutex_lock(&drv->lock);
755         if (enable)
756                 timer_usage++;
757         else
758                 timer_usage--;
759 
760         /*
761          * Send the command only if this call is the first enable or last
762          * disable
763          */
764         if ((enable && (timer_usage == 1)) ||
765             (!enable && (timer_usage == 0))) {
766                 ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,
767                                 SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,
768                                 sizeof(cmd.header) + cmd.header.length);
769                 if (ret && enable) {
770                         timer_usage--;
771                         enable  = false;
772                 }
773         }
774         mutex_unlock(&drv->lock);
775 
776         if (!enable)
777                 sst->ops->power(sst->dev, false);
778         return ret;
779 }
780 
781 int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
782                 unsigned int rx_mask, int slots, int slot_width)
783 {
784         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
785 
786         ctx->ssp_cmd.nb_slots = slots;
787         ctx->ssp_cmd.active_tx_slot_map = tx_mask;
788         ctx->ssp_cmd.active_rx_slot_map = rx_mask;
789         ctx->ssp_cmd.nb_bits_per_slots = slot_width;
790 
791         return 0;
792 }
793 
794 static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,
795                 unsigned int fmt)
796 {
797         int format;
798 
799         format = fmt & SND_SOC_DAIFMT_INV_MASK;
800         dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
801 
802         switch (format) {
803         case SND_SOC_DAIFMT_NB_NF:
804                 return SSP_FS_ACTIVE_LOW;
805         case SND_SOC_DAIFMT_NB_IF:
806                 return SSP_FS_ACTIVE_HIGH;
807         case SND_SOC_DAIFMT_IB_IF:
808                 return SSP_FS_ACTIVE_LOW;
809         case SND_SOC_DAIFMT_IB_NF:
810                 return SSP_FS_ACTIVE_HIGH;
811         default:
812                 dev_err(dai->dev, "Invalid frame sync polarity %d\n", format);
813         }
814 
815         return -EINVAL;
816 }
817 
818 static int sst_get_ssp_mode(struct snd_soc_dai *dai, unsigned int fmt)
819 {
820         int format;
821 
822         format = (fmt & SND_SOC_DAIFMT_MASTER_MASK);
823         dev_dbg(dai->dev, "Enter:%s, format=%x\n", __func__, format);
824 
825         switch (format) {
826         case SND_SOC_DAIFMT_CBS_CFS:
827                 return SSP_MODE_MASTER;
828         case SND_SOC_DAIFMT_CBM_CFM:
829                 return SSP_MODE_SLAVE;
830         default:
831                 dev_err(dai->dev, "Invalid ssp protocol: %d\n", format);
832         }
833 
834         return -EINVAL;
835 }
836 
837 
838 int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt)
839 {
840         unsigned int mode;
841         int fs_polarity;
842         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
843 
844         mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
845 
846         switch (mode) {
847         case SND_SOC_DAIFMT_DSP_B:
848                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
849                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
850                 ctx->ssp_cmd.start_delay = 0;
851                 ctx->ssp_cmd.data_polarity = 1;
852                 ctx->ssp_cmd.frame_sync_width = 1;
853                 break;
854 
855         case SND_SOC_DAIFMT_DSP_A:
856                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_PCM;
857                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NETWORK << 1);
858                 ctx->ssp_cmd.start_delay = 1;
859                 ctx->ssp_cmd.data_polarity = 1;
860                 ctx->ssp_cmd.frame_sync_width = 1;
861                 break;
862 
863         case SND_SOC_DAIFMT_I2S:
864                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
865                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
866                 ctx->ssp_cmd.start_delay = 1;
867                 ctx->ssp_cmd.data_polarity = 0;
868                 ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
869                 break;
870 
871         case SND_SOC_DAIFMT_LEFT_J:
872                 ctx->ssp_cmd.ssp_protocol = SSP_MODE_I2S;
873                 ctx->ssp_cmd.mode = sst_get_ssp_mode(dai, fmt) | (SSP_PCM_MODE_NORMAL << 1);
874                 ctx->ssp_cmd.start_delay = 0;
875                 ctx->ssp_cmd.data_polarity = 0;
876                 ctx->ssp_cmd.frame_sync_width = ctx->ssp_cmd.nb_bits_per_slots;
877                 break;
878 
879         default:
880                 dev_dbg(dai->dev, "using default ssp configs\n");
881         }
882 
883         fs_polarity = sst_get_frame_sync_polarity(dai, fmt);
884         if (fs_polarity < 0)
885                 return fs_polarity;
886 
887         ctx->ssp_cmd.frame_sync_polarity = fs_polarity;
888 
889         return 0;
890 }
891 
892 /**
893  * sst_ssp_config - contains SSP configuration for media UC
894  * this can be overwritten by set_dai_xxx APIs
895  */
896 static const struct sst_ssp_config sst_ssp_configs = {
897         .ssp_id = SSP_CODEC,
898         .bits_per_slot = 24,
899         .slots = 4,
900         .ssp_mode = SSP_MODE_MASTER,
901         .pcm_mode = SSP_PCM_MODE_NETWORK,
902         .duplex = SSP_DUPLEX,
903         .ssp_protocol = SSP_MODE_PCM,
904         .fs_width = 1,
905         .fs_frequency = SSP_FS_48_KHZ,
906         .active_slot_map = 0xF,
907         .start_delay = 0,
908         .frame_sync_polarity = SSP_FS_ACTIVE_HIGH,
909         .data_polarity = 1,
910 };
911 
912 void sst_fill_ssp_defaults(struct snd_soc_dai *dai)
913 {
914         const struct sst_ssp_config *config;
915         struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
916 
917         config = &sst_ssp_configs;
918 
919         ctx->ssp_cmd.selection = config->ssp_id;
920         ctx->ssp_cmd.nb_bits_per_slots = config->bits_per_slot;
921         ctx->ssp_cmd.nb_slots = config->slots;
922         ctx->ssp_cmd.mode = config->ssp_mode | (config->pcm_mode << 1);
923         ctx->ssp_cmd.duplex = config->duplex;
924         ctx->ssp_cmd.active_tx_slot_map = config->active_slot_map;
925         ctx->ssp_cmd.active_rx_slot_map = config->active_slot_map;
926         ctx->ssp_cmd.frame_sync_frequency = config->fs_frequency;
927         ctx->ssp_cmd.frame_sync_polarity = config->frame_sync_polarity;
928         ctx->ssp_cmd.data_polarity = config->data_polarity;
929         ctx->ssp_cmd.frame_sync_width = config->fs_width;
930         ctx->ssp_cmd.ssp_protocol = config->ssp_protocol;
931         ctx->ssp_cmd.start_delay = config->start_delay;
932         ctx->ssp_cmd.reserved1 = ctx->ssp_cmd.reserved2 = 0xFF;
933 }
934 
935 int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)
936 {
937         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
938         int ssp_id;
939 
940         dev_dbg(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);
941 
942         if (strcmp(id, "ssp0-port") == 0)
943                 ssp_id = SSP_MODEM;
944         else if (strcmp(id, "ssp2-port") == 0)
945                 ssp_id = SSP_CODEC;
946         else {
947                 dev_dbg(dai->dev, "port %s is not supported\n", id);
948                 return -1;
949         }
950 
951         SST_FILL_DEFAULT_DESTINATION(drv->ssp_cmd.header.dst);
952         drv->ssp_cmd.header.command_id = SBA_HW_SET_SSP;
953         drv->ssp_cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)
954                                 - sizeof(struct sst_dsp_header);
955 
956         drv->ssp_cmd.selection = ssp_id;
957         dev_dbg(dai->dev, "ssp_id: %u\n", ssp_id);
958 
959         if (enable)
960                 drv->ssp_cmd.switch_state = SST_SWITCH_ON;
961         else
962                 drv->ssp_cmd.switch_state = SST_SWITCH_OFF;
963 
964         return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
965                                 SST_TASK_SBA, 0, &drv->ssp_cmd,
966                                 sizeof(drv->ssp_cmd.header) + drv->ssp_cmd.header.length);
967 }
968 
969 static int sst_set_be_modules(struct snd_soc_dapm_widget *w,
970                          struct snd_kcontrol *k, int event)
971 {
972         int ret = 0;
973         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
974         struct sst_data *drv = snd_soc_component_get_drvdata(c);
975 
976         dev_dbg(c->dev, "Enter: widget=%s\n", w->name);
977 
978         if (SND_SOC_DAPM_EVENT_ON(event)) {
979                 ret = sst_send_slot_map(drv);
980                 if (ret)
981                         return ret;
982                 ret = sst_send_pipe_module_params(w, k);
983         }
984         return ret;
985 }
986 
987 static int sst_set_media_path(struct snd_soc_dapm_widget *w,
988                               struct snd_kcontrol *k, int event)
989 {
990         int ret = 0;
991         struct sst_cmd_set_media_path cmd;
992         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
993         struct sst_data *drv = snd_soc_component_get_drvdata(c);
994         struct sst_ids *ids = w->priv;
995 
996         dev_dbg(c->dev, "widget=%s\n", w->name);
997         dev_dbg(c->dev, "task=%u, location=%#x\n",
998                                 ids->task_id, ids->location_id);
999 
1000         if (SND_SOC_DAPM_EVENT_ON(event))
1001                 cmd.switch_state = SST_PATH_ON;
1002         else
1003                 cmd.switch_state = SST_PATH_OFF;
1004 
1005         SST_FILL_DESTINATION(2, cmd.header.dst,
1006                              ids->location_id, SST_DEFAULT_MODULE_ID);
1007 
1008         /* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */
1009         cmd.header.command_id = MMX_SET_MEDIA_PATH;
1010         cmd.header.length = sizeof(struct sst_cmd_set_media_path)
1011                                 - sizeof(struct sst_dsp_header);
1012 
1013         ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1014                               ids->task_id, 0, &cmd,
1015                               sizeof(cmd.header) + cmd.header.length);
1016         if (ret)
1017                 return ret;
1018 
1019         if (SND_SOC_DAPM_EVENT_ON(event))
1020                 ret = sst_send_pipe_module_params(w, k);
1021         return ret;
1022 }
1023 
1024 static int sst_set_media_loop(struct snd_soc_dapm_widget *w,
1025                         struct snd_kcontrol *k, int event)
1026 {
1027         int ret = 0;
1028         struct sst_cmd_sba_set_media_loop_map cmd;
1029         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1030         struct sst_data *drv = snd_soc_component_get_drvdata(c);
1031         struct sst_ids *ids = w->priv;
1032 
1033         dev_dbg(c->dev, "Enter:widget=%s\n", w->name);
1034         if (SND_SOC_DAPM_EVENT_ON(event))
1035                 cmd.switch_state = SST_SWITCH_ON;
1036         else
1037                 cmd.switch_state = SST_SWITCH_OFF;
1038 
1039         SST_FILL_DESTINATION(2, cmd.header.dst,
1040                              ids->location_id, SST_DEFAULT_MODULE_ID);
1041 
1042         cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;
1043         cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)
1044                                  - sizeof(struct sst_dsp_header);
1045         cmd.param.part.cfg.rate = 2; /* 48khz */
1046 
1047         cmd.param.part.cfg.format = ids->format; /* stereo/Mono */
1048         cmd.param.part.cfg.s_length = 1; /* 24bit left justified */
1049         cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */
1050 
1051         ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,
1052                               SST_TASK_SBA, 0, &cmd,
1053                               sizeof(cmd.header) + cmd.header.length);
1054         if (ret)
1055                 return ret;
1056 
1057         if (SND_SOC_DAPM_EVENT_ON(event))
1058                 ret = sst_send_pipe_module_params(w, k);
1059         return ret;
1060 }
1061 
1062 static const struct snd_soc_dapm_widget sst_dapm_widgets[] = {
1063         SST_AIF_IN("modem_in", sst_set_be_modules),
1064         SST_AIF_IN("codec_in0", sst_set_be_modules),
1065         SST_AIF_IN("codec_in1", sst_set_be_modules),
1066         SST_AIF_OUT("modem_out", sst_set_be_modules),
1067         SST_AIF_OUT("codec_out0", sst_set_be_modules),
1068         SST_AIF_OUT("codec_out1", sst_set_be_modules),
1069 
1070         /* Media Paths */
1071         /* MediaX IN paths are set via ALLOC, so no SET_MEDIA_PATH command */
1072         SST_PATH_INPUT("media0_in", SST_TASK_MMX, SST_SWM_IN_MEDIA0, sst_generic_modules_event),
1073         SST_PATH_INPUT("media1_in", SST_TASK_MMX, SST_SWM_IN_MEDIA1, NULL),
1074         SST_PATH_INPUT("media2_in", SST_TASK_MMX, SST_SWM_IN_MEDIA2, sst_set_media_path),
1075         SST_PATH_INPUT("media3_in", SST_TASK_MMX, SST_SWM_IN_MEDIA3, NULL),
1076         SST_PATH_OUTPUT("media0_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA0, sst_set_media_path),
1077         SST_PATH_OUTPUT("media1_out", SST_TASK_MMX, SST_SWM_OUT_MEDIA1, sst_set_media_path),
1078 
1079         /* SBA PCM Paths */
1080         SST_PATH_INPUT("pcm0_in", SST_TASK_SBA, SST_SWM_IN_PCM0, sst_set_media_path),
1081         SST_PATH_INPUT("pcm1_in", SST_TASK_SBA, SST_SWM_IN_PCM1, sst_set_media_path),
1082         SST_PATH_OUTPUT("pcm0_out", SST_TASK_SBA, SST_SWM_OUT_PCM0, sst_set_media_path),
1083         SST_PATH_OUTPUT("pcm1_out", SST_TASK_SBA, SST_SWM_OUT_PCM1, sst_set_media_path),
1084         SST_PATH_OUTPUT("pcm2_out", SST_TASK_SBA, SST_SWM_OUT_PCM2, sst_set_media_path),
1085 
1086         /* SBA Loops */
1087         SST_PATH_INPUT("sprot_loop_in", SST_TASK_SBA, SST_SWM_IN_SPROT_LOOP, NULL),
1088         SST_PATH_INPUT("media_loop1_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP1, NULL),
1089         SST_PATH_INPUT("media_loop2_in", SST_TASK_SBA, SST_SWM_IN_MEDIA_LOOP2, NULL),
1090         SST_PATH_MEDIA_LOOP_OUTPUT("sprot_loop_out", SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP, SST_FMT_MONO, sst_set_media_loop),
1091         SST_PATH_MEDIA_LOOP_OUTPUT("media_loop1_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1, SST_FMT_MONO, sst_set_media_loop),
1092         SST_PATH_MEDIA_LOOP_OUTPUT("media_loop2_out", SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2, SST_FMT_STEREO, sst_set_media_loop),
1093 
1094         /* Media Mixers */
1095         SST_SWM_MIXER("media0_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA0,
1096                       sst_mix_media0_controls, sst_swm_mixer_event),
1097         SST_SWM_MIXER("media1_out mix 0", SND_SOC_NOPM, SST_TASK_MMX, SST_SWM_OUT_MEDIA1,
1098                       sst_mix_media1_controls, sst_swm_mixer_event),
1099 
1100         /* SBA PCM mixers */
1101         SST_SWM_MIXER("pcm0_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM0,
1102                       sst_mix_pcm0_controls, sst_swm_mixer_event),
1103         SST_SWM_MIXER("pcm1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM1,
1104                       sst_mix_pcm1_controls, sst_swm_mixer_event),
1105         SST_SWM_MIXER("pcm2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_PCM2,
1106                       sst_mix_pcm2_controls, sst_swm_mixer_event),
1107 
1108         /* SBA Loop mixers */
1109         SST_SWM_MIXER("sprot_loop_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_SPROT_LOOP,
1110                       sst_mix_sprot_l0_controls, sst_swm_mixer_event),
1111         SST_SWM_MIXER("media_loop1_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP1,
1112                       sst_mix_media_l1_controls, sst_swm_mixer_event),
1113         SST_SWM_MIXER("media_loop2_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MEDIA_LOOP2,
1114                       sst_mix_media_l2_controls, sst_swm_mixer_event),
1115 
1116         /* SBA Backend mixers */
1117         SST_SWM_MIXER("codec_out0 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC0,
1118                       sst_mix_codec0_controls, sst_swm_mixer_event),
1119         SST_SWM_MIXER("codec_out1 mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_CODEC1,
1120                       sst_mix_codec1_controls, sst_swm_mixer_event),
1121         SST_SWM_MIXER("modem_out mix 0", SND_SOC_NOPM, SST_TASK_SBA, SST_SWM_OUT_MODEM,
1122                       sst_mix_modem_controls, sst_swm_mixer_event),
1123 
1124 };
1125 
1126 static const struct snd_soc_dapm_route intercon[] = {
1127         {"media0_in", NULL, "Compress Playback"},
1128         {"media1_in", NULL, "Headset Playback"},
1129         {"media2_in", NULL, "pcm0_out"},
1130         {"media3_in", NULL, "Deepbuffer Playback"},
1131 
1132         {"media0_out mix 0", "media0_in Switch", "media0_in"},
1133         {"media0_out mix 0", "media1_in Switch", "media1_in"},
1134         {"media0_out mix 0", "media2_in Switch", "media2_in"},
1135         {"media0_out mix 0", "media3_in Switch", "media3_in"},
1136         {"media1_out mix 0", "media0_in Switch", "media0_in"},
1137         {"media1_out mix 0", "media1_in Switch", "media1_in"},
1138         {"media1_out mix 0", "media2_in Switch", "media2_in"},
1139         {"media1_out mix 0", "media3_in Switch", "media3_in"},
1140 
1141         {"media0_out", NULL, "media0_out mix 0"},
1142         {"media1_out", NULL, "media1_out mix 0"},
1143         {"pcm0_in", NULL, "media0_out"},
1144         {"pcm1_in", NULL, "media1_out"},
1145 
1146         {"Headset Capture", NULL, "pcm1_out"},
1147         {"Headset Capture", NULL, "pcm2_out"},
1148         {"pcm0_out", NULL, "pcm0_out mix 0"},
1149         SST_SBA_MIXER_GRAPH_MAP("pcm0_out mix 0"),
1150         {"pcm1_out", NULL, "pcm1_out mix 0"},
1151         SST_SBA_MIXER_GRAPH_MAP("pcm1_out mix 0"),
1152         {"pcm2_out", NULL, "pcm2_out mix 0"},
1153         SST_SBA_MIXER_GRAPH_MAP("pcm2_out mix 0"),
1154 
1155         {"media_loop1_in", NULL, "media_loop1_out"},
1156         {"media_loop1_out", NULL, "media_loop1_out mix 0"},
1157         SST_SBA_MIXER_GRAPH_MAP("media_loop1_out mix 0"),
1158         {"media_loop2_in", NULL, "media_loop2_out"},
1159         {"media_loop2_out", NULL, "media_loop2_out mix 0"},
1160         SST_SBA_MIXER_GRAPH_MAP("media_loop2_out mix 0"),
1161         {"sprot_loop_in", NULL, "sprot_loop_out"},
1162         {"sprot_loop_out", NULL, "sprot_loop_out mix 0"},
1163         SST_SBA_MIXER_GRAPH_MAP("sprot_loop_out mix 0"),
1164 
1165         {"codec_out0", NULL, "codec_out0 mix 0"},
1166         SST_SBA_MIXER_GRAPH_MAP("codec_out0 mix 0"),
1167         {"codec_out1", NULL, "codec_out1 mix 0"},
1168         SST_SBA_MIXER_GRAPH_MAP("codec_out1 mix 0"),
1169         {"modem_out", NULL, "modem_out mix 0"},
1170         SST_SBA_MIXER_GRAPH_MAP("modem_out mix 0"),
1171 
1172 
1173 };
1174 static const char * const slot_names[] = {
1175         "none",
1176         "slot 0", "slot 1", "slot 2", "slot 3",
1177         "slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */
1178 };
1179 
1180 static const char * const channel_names[] = {
1181         "none",
1182         "codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",
1183         "codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */
1184 };
1185 
1186 #define SST_INTERLEAVER(xpname, slot_name, slotno) \
1187         SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \
1188                          channel_names, sst_slot_get, sst_slot_put)
1189 
1190 #define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \
1191         SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \
1192                          slot_names, sst_slot_get, sst_slot_put)
1193 
1194 static const struct snd_kcontrol_new sst_slot_controls[] = {
1195         SST_INTERLEAVER("codec_out", "slot 0", 0),
1196         SST_INTERLEAVER("codec_out", "slot 1", 1),
1197         SST_INTERLEAVER("codec_out", "slot 2", 2),
1198         SST_INTERLEAVER("codec_out", "slot 3", 3),
1199         SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),
1200         SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),
1201         SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),
1202         SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),
1203 };
1204 
1205 /* Gain helper with min/max set */
1206 #define SST_GAIN(name, path_id, task_id, instance, gain_var)                            \
1207         SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,        \
1208                 SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,                                       \
1209                 sst_gain_get, sst_gain_put,                                             \
1210                 SST_MODULE_ID_GAIN_CELL, path_id, instance, task_id,                    \
1211                 sst_gain_tlv_common, gain_var)
1212 
1213 #define SST_VOLUME(name, path_id, task_id, instance, gain_var)                          \
1214         SST_GAIN_KCONTROLS(name, "Volume", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,      \
1215                 SST_GAIN_TC_MIN, SST_GAIN_TC_MAX,                                       \
1216                 sst_gain_get, sst_gain_put,                                             \
1217                 SST_MODULE_ID_VOLUME, path_id, instance, task_id,                       \
1218                 sst_gain_tlv_common, gain_var)
1219 
1220 static struct sst_gain_value sst_gains[];
1221 
1222 static const struct snd_kcontrol_new sst_gain_controls[] = {
1223         SST_GAIN("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[0]),
1224         SST_GAIN("media1_in", SST_PATH_INDEX_MEDIA1_IN, SST_TASK_MMX, 0, &sst_gains[1]),
1225         SST_GAIN("media2_in", SST_PATH_INDEX_MEDIA2_IN, SST_TASK_MMX, 0, &sst_gains[2]),
1226         SST_GAIN("media3_in", SST_PATH_INDEX_MEDIA3_IN, SST_TASK_MMX, 0, &sst_gains[3]),
1227 
1228         SST_GAIN("pcm0_in", SST_PATH_INDEX_PCM0_IN, SST_TASK_SBA, 0, &sst_gains[4]),
1229         SST_GAIN("pcm1_in", SST_PATH_INDEX_PCM1_IN, SST_TASK_SBA, 0, &sst_gains[5]),
1230         SST_GAIN("pcm1_out", SST_PATH_INDEX_PCM1_OUT, SST_TASK_SBA, 0, &sst_gains[6]),
1231         SST_GAIN("pcm2_out", SST_PATH_INDEX_PCM2_OUT, SST_TASK_SBA, 0, &sst_gains[7]),
1232 
1233         SST_GAIN("codec_in0", SST_PATH_INDEX_CODEC_IN0, SST_TASK_SBA, 0, &sst_gains[8]),
1234         SST_GAIN("codec_in1", SST_PATH_INDEX_CODEC_IN1, SST_TASK_SBA, 0, &sst_gains[9]),
1235         SST_GAIN("codec_out0", SST_PATH_INDEX_CODEC_OUT0, SST_TASK_SBA, 0, &sst_gains[10]),
1236         SST_GAIN("codec_out1", SST_PATH_INDEX_CODEC_OUT1, SST_TASK_SBA, 0, &sst_gains[11]),
1237         SST_GAIN("media_loop1_out", SST_PATH_INDEX_MEDIA_LOOP1_OUT, SST_TASK_SBA, 0, &sst_gains[12]),
1238         SST_GAIN("media_loop2_out", SST_PATH_INDEX_MEDIA_LOOP2_OUT, SST_TASK_SBA, 0, &sst_gains[13]),
1239         SST_GAIN("sprot_loop_out", SST_PATH_INDEX_SPROT_LOOP_OUT, SST_TASK_SBA, 0, &sst_gains[14]),
1240         SST_VOLUME("media0_in", SST_PATH_INDEX_MEDIA0_IN, SST_TASK_MMX, 0, &sst_gains[15]),
1241         SST_GAIN("modem_in", SST_PATH_INDEX_MODEM_IN, SST_TASK_SBA, 0, &sst_gains[16]),
1242         SST_GAIN("modem_out", SST_PATH_INDEX_MODEM_OUT, SST_TASK_SBA, 0, &sst_gains[17]),
1243 
1244 };
1245 
1246 #define SST_GAIN_NUM_CONTROLS 3
1247 /* the SST_GAIN macro above will create three alsa controls for each
1248  * instance invoked, gain, mute and ramp duration, which use the same gain
1249  * cell sst_gain to keep track of data
1250  * To calculate number of gain cell instances we need to device by 3 in
1251  * below caulcation for gain cell memory.
1252  * This gets rid of static number and issues while adding new controls
1253  */
1254 static struct sst_gain_value sst_gains[ARRAY_SIZE(sst_gain_controls)/SST_GAIN_NUM_CONTROLS];
1255 
1256 static const struct snd_kcontrol_new sst_algo_controls[] = {
1257         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "fir", 272, SST_MODULE_ID_FIR_24,
1258                  SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1259         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "iir", 300, SST_MODULE_ID_IIR_24,
1260                 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1261         SST_ALGO_KCONTROL_BYTES("media_loop1_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1262                 SST_PATH_INDEX_MEDIA_LOOP1_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1263         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "fir", 272, SST_MODULE_ID_FIR_24,
1264                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_FIR),
1265         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "iir", 300, SST_MODULE_ID_IIR_24,
1266                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1267         SST_ALGO_KCONTROL_BYTES("media_loop2_out", "mdrp", 286, SST_MODULE_ID_MDRP,
1268                 SST_PATH_INDEX_MEDIA_LOOP2_OUT, 0, SST_TASK_SBA, SBA_SET_MDRP),
1269         SST_ALGO_KCONTROL_BYTES("sprot_loop_out", "lpro", 192, SST_MODULE_ID_SPROT,
1270                 SST_PATH_INDEX_SPROT_LOOP_OUT, 0, SST_TASK_SBA, SBA_VB_LPRO),
1271         SST_ALGO_KCONTROL_BYTES("codec_in0", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1272                 SST_PATH_INDEX_CODEC_IN0, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1273         SST_ALGO_KCONTROL_BYTES("codec_in1", "dcr", 52, SST_MODULE_ID_FILT_DCR,
1274                 SST_PATH_INDEX_CODEC_IN1, 0, SST_TASK_SBA, SBA_VB_SET_IIR),
1275 
1276 };
1277 
1278 static int sst_algo_control_init(struct device *dev)
1279 {
1280         int i = 0;
1281         struct sst_algo_control *bc;
1282         /*allocate space to cache the algo parameters in the driver*/
1283         for (i = 0; i < ARRAY_SIZE(sst_algo_controls); i++) {
1284                 bc = (struct sst_algo_control *)sst_algo_controls[i].private_value;
1285                 bc->params = devm_kzalloc(dev, bc->max, GFP_KERNEL);
1286                 if (bc->params == NULL)
1287                         return -ENOMEM;
1288         }
1289         return 0;
1290 }
1291 
1292 static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)
1293 {
1294         switch (w->id) {
1295         case snd_soc_dapm_pga:
1296         case snd_soc_dapm_aif_in:
1297         case snd_soc_dapm_aif_out:
1298         case snd_soc_dapm_input:
1299         case snd_soc_dapm_output:
1300         case snd_soc_dapm_mixer:
1301                 return true;
1302         default:
1303                 return false;
1304         }
1305 }
1306 
1307 /**
1308  * sst_send_pipe_gains - send gains for the front-end DAIs
1309  *
1310  * The gains in the pipes connected to the front-ends are muted/unmuted
1311  * automatically via the digital_mute() DAPM callback. This function sends the
1312  * gains for the front-end pipes.
1313  */
1314 int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)
1315 {
1316         struct sst_data *drv = snd_soc_dai_get_drvdata(dai);
1317         struct snd_soc_dapm_widget *w;
1318         struct snd_soc_dapm_path *p = NULL;
1319 
1320         dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);
1321 
1322         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1323                 dev_dbg(dai->dev, "Stream name=%s\n",
1324                                 dai->playback_widget->name);
1325                 w = dai->playback_widget;
1326                 snd_soc_dapm_widget_for_each_sink_path(w, p) {
1327                         if (p->connected && !p->connected(w, p->sink))
1328                                 continue;
1329 
1330                         if (p->connect && p->sink->power &&
1331                                         is_sst_dapm_widget(p->sink)) {
1332                                 struct sst_ids *ids = p->sink->priv;
1333 
1334                                 dev_dbg(dai->dev, "send gains for widget=%s\n",
1335                                                 p->sink->name);
1336                                 mutex_lock(&drv->lock);
1337                                 sst_set_pipe_gain(ids, drv, mute);
1338                                 mutex_unlock(&drv->lock);
1339                         }
1340                 }
1341         } else {
1342                 dev_dbg(dai->dev, "Stream name=%s\n",
1343                                 dai->capture_widget->name);
1344                 w = dai->capture_widget;
1345                 snd_soc_dapm_widget_for_each_source_path(w, p) {
1346                         if (p->connected && !p->connected(w, p->sink))
1347                                 continue;
1348 
1349                         if (p->connect &&  p->source->power &&
1350                                         is_sst_dapm_widget(p->source)) {
1351                                 struct sst_ids *ids = p->source->priv;
1352 
1353                                 dev_dbg(dai->dev, "send gain for widget=%s\n",
1354                                                 p->source->name);
1355                                 mutex_lock(&drv->lock);
1356                                 sst_set_pipe_gain(ids, drv, mute);
1357                                 mutex_unlock(&drv->lock);
1358                         }
1359                 }
1360         }
1361         return 0;
1362 }
1363 
1364 /**
1365  * sst_fill_module_list - populate the list of modules/gains for a pipe
1366  *
1367  *
1368  * Fills the widget pointer in the kcontrol private data, and also fills the
1369  * kcontrol pointer in the widget private data.
1370  *
1371  * Widget pointer is used to send the algo/gain in the .put() handler if the
1372  * widget is powerd on.
1373  *
1374  * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF
1375  * event handler. Each widget (pipe) has multiple algos stored in the algo_list.
1376  */
1377 static int sst_fill_module_list(struct snd_kcontrol *kctl,
1378          struct snd_soc_dapm_widget *w, int type)
1379 {
1380         struct sst_module *module = NULL;
1381         struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);
1382         struct sst_ids *ids = w->priv;
1383         int ret = 0;
1384 
1385         module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);
1386         if (!module)
1387                 return -ENOMEM;
1388 
1389         if (type == SST_MODULE_GAIN) {
1390                 struct sst_gain_mixer_control *mc = (void *)kctl->private_value;
1391 
1392                 mc->w = w;
1393                 module->kctl = kctl;
1394                 list_add_tail(&module->node, &ids->gain_list);
1395         } else if (type == SST_MODULE_ALGO) {
1396                 struct sst_algo_control *bc = (void *)kctl->private_value;
1397 
1398                 bc->w = w;
1399                 module->kctl = kctl;
1400                 list_add_tail(&module->node, &ids->algo_list);
1401         } else {
1402                 dev_err(c->dev, "invoked for unknown type %d module %s",
1403                                 type, kctl->id.name);
1404                 ret = -EINVAL;
1405         }
1406 
1407         return ret;
1408 }
1409 
1410 /**
1411  * sst_fill_widget_module_info - fill list of gains/algos for the pipe
1412  * @widget:     pipe modelled as a DAPM widget
1413  *
1414  * Fill the list of gains/algos for the widget by looking at all the card
1415  * controls and comparing the name of the widget with the first part of control
1416  * name. First part of control name contains the pipe name (widget name).
1417  */
1418 static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,
1419         struct snd_soc_platform *platform)
1420 {
1421         struct snd_kcontrol *kctl;
1422         int index, ret = 0;
1423         struct snd_card *card = platform->component.card->snd_card;
1424         char *idx;
1425 
1426         down_read(&card->controls_rwsem);
1427 
1428         list_for_each_entry(kctl, &card->controls, list) {
1429                 idx = strchr(kctl->id.name, ' ');
1430                 if (idx == NULL)
1431                         continue;
1432                 index = idx - (char*)kctl->id.name;
1433                 if (strncmp(kctl->id.name, w->name, index))
1434                         continue;
1435 
1436                 if (strstr(kctl->id.name, "Volume"))
1437                         ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);
1438 
1439                 else if (strstr(kctl->id.name, "params"))
1440                         ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);
1441 
1442                 else if (strstr(kctl->id.name, "Switch") &&
1443                          strstr(kctl->id.name, "Gain")) {
1444                         struct sst_gain_mixer_control *mc =
1445                                                 (void *)kctl->private_value;
1446 
1447                         mc->w = w;
1448 
1449                 } else if (strstr(kctl->id.name, "interleaver")) {
1450                         struct sst_enum *e = (void *)kctl->private_value;
1451 
1452                         e->w = w;
1453 
1454                 } else if (strstr(kctl->id.name, "deinterleaver")) {
1455                         struct sst_enum *e = (void *)kctl->private_value;
1456 
1457                         e->w = w;
1458                 }
1459 
1460                 if (ret < 0) {
1461                         up_read(&card->controls_rwsem);
1462                         return ret;
1463                 }
1464         }
1465 
1466         up_read(&card->controls_rwsem);
1467         return 0;
1468 }
1469 
1470 /**
1471  * sst_fill_linked_widgets - fill the parent pointer for the linked widget
1472  */
1473 static void sst_fill_linked_widgets(struct snd_soc_platform *platform,
1474                                                 struct sst_ids *ids)
1475 {
1476         struct snd_soc_dapm_widget *w;
1477         unsigned int len = strlen(ids->parent_wname);
1478 
1479         list_for_each_entry(w, &platform->component.card->widgets, list) {
1480                 if (!strncmp(ids->parent_wname, w->name, len)) {
1481                         ids->parent_w = w;
1482                         break;
1483                 }
1484         }
1485 }
1486 
1487 /**
1488  * sst_map_modules_to_pipe - fill algo/gains list for all pipes
1489  */
1490 static int sst_map_modules_to_pipe(struct snd_soc_platform *platform)
1491 {
1492         struct snd_soc_dapm_widget *w;
1493         int ret = 0;
1494 
1495         list_for_each_entry(w, &platform->component.card->widgets, list) {
1496                 if (is_sst_dapm_widget(w) && (w->priv)) {
1497                         struct sst_ids *ids = w->priv;
1498 
1499                         dev_dbg(platform->dev, "widget type=%d name=%s\n",
1500                                         w->id, w->name);
1501                         INIT_LIST_HEAD(&ids->algo_list);
1502                         INIT_LIST_HEAD(&ids->gain_list);
1503                         ret = sst_fill_widget_module_info(w, platform);
1504 
1505                         if (ret < 0)
1506                                 return ret;
1507 
1508                         /* fill linked widgets */
1509                         if (ids->parent_wname !=  NULL)
1510                                 sst_fill_linked_widgets(platform, ids);
1511                 }
1512         }
1513         return 0;
1514 }
1515 
1516 int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)
1517 {
1518         int i, ret = 0;
1519         struct snd_soc_dapm_context *dapm =
1520                         snd_soc_component_get_dapm(&platform->component);
1521         struct sst_data *drv = snd_soc_platform_get_drvdata(platform);
1522         unsigned int gains = ARRAY_SIZE(sst_gain_controls)/3;
1523 
1524         drv->byte_stream = devm_kzalloc(platform->dev,
1525                                         SST_MAX_BIN_BYTES, GFP_KERNEL);
1526         if (!drv->byte_stream)
1527                 return -ENOMEM;
1528 
1529         snd_soc_dapm_new_controls(dapm, sst_dapm_widgets,
1530                         ARRAY_SIZE(sst_dapm_widgets));
1531         snd_soc_dapm_add_routes(dapm, intercon,
1532                         ARRAY_SIZE(intercon));
1533         snd_soc_dapm_new_widgets(dapm->card);
1534 
1535         for (i = 0; i < gains; i++) {
1536                 sst_gains[i].mute = SST_GAIN_MUTE_DEFAULT;
1537                 sst_gains[i].l_gain = SST_GAIN_VOLUME_DEFAULT;
1538                 sst_gains[i].r_gain = SST_GAIN_VOLUME_DEFAULT;
1539                 sst_gains[i].ramp_duration = SST_GAIN_RAMP_DURATION_DEFAULT;
1540         }
1541 
1542         ret = snd_soc_add_platform_controls(platform, sst_gain_controls,
1543                         ARRAY_SIZE(sst_gain_controls));
1544         if (ret)
1545                 return ret;
1546 
1547         /* Initialize algo control params */
1548         ret = sst_algo_control_init(platform->dev);
1549         if (ret)
1550                 return ret;
1551         ret = snd_soc_add_platform_controls(platform, sst_algo_controls,
1552                         ARRAY_SIZE(sst_algo_controls));
1553         if (ret)
1554                 return ret;
1555 
1556         ret = snd_soc_add_platform_controls(platform, sst_slot_controls,
1557                         ARRAY_SIZE(sst_slot_controls));
1558         if (ret)
1559                 return ret;
1560 
1561         ret = sst_map_modules_to_pipe(platform);
1562 
1563         return ret;
1564 }
1565 

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