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Linux/sound/soc/intel/skylake/skl-messages.c

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  1 /*
  2  *  skl-message.c - HDA DSP interface for FW registration, Pipe and Module
  3  *  configurations
  4  *
  5  *  Copyright (C) 2015 Intel Corp
  6  *  Author:Rafal Redzimski <rafal.f.redzimski@intel.com>
  7  *         Jeeja KP <jeeja.kp@intel.com>
  8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License as version 2, as
 12  * published by the Free Software Foundation.
 13  *
 14  * This program is distributed in the hope that it will be useful, but
 15  * WITHOUT ANY WARRANTY; without even the implied warranty of
 16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 17  * General Public License for more details.
 18  */
 19 
 20 #include <linux/slab.h>
 21 #include <linux/pci.h>
 22 #include <sound/core.h>
 23 #include <sound/pcm.h>
 24 #include "skl-sst-dsp.h"
 25 #include "cnl-sst-dsp.h"
 26 #include "skl-sst-ipc.h"
 27 #include "skl.h"
 28 #include "../common/sst-dsp.h"
 29 #include "../common/sst-dsp-priv.h"
 30 #include "skl-topology.h"
 31 #include "skl-tplg-interface.h"
 32 
 33 static int skl_alloc_dma_buf(struct device *dev,
 34                 struct snd_dma_buffer *dmab, size_t size)
 35 {
 36         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
 37         struct hdac_bus *bus = ebus_to_hbus(ebus);
 38 
 39         if (!bus)
 40                 return -ENODEV;
 41 
 42         return  bus->io_ops->dma_alloc_pages(bus, SNDRV_DMA_TYPE_DEV, size, dmab);
 43 }
 44 
 45 static int skl_free_dma_buf(struct device *dev, struct snd_dma_buffer *dmab)
 46 {
 47         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
 48         struct hdac_bus *bus = ebus_to_hbus(ebus);
 49 
 50         if (!bus)
 51                 return -ENODEV;
 52 
 53         bus->io_ops->dma_free_pages(bus, dmab);
 54 
 55         return 0;
 56 }
 57 
 58 #define NOTIFICATION_PARAM_ID 3
 59 #define NOTIFICATION_MASK 0xf
 60 
 61 /* disable notfication for underruns/overruns from firmware module */
 62 void skl_dsp_enable_notification(struct skl_sst *ctx, bool enable)
 63 {
 64         struct notification_mask mask;
 65         struct skl_ipc_large_config_msg msg = {0};
 66 
 67         mask.notify = NOTIFICATION_MASK;
 68         mask.enable = enable;
 69 
 70         msg.large_param_id = NOTIFICATION_PARAM_ID;
 71         msg.param_data_size = sizeof(mask);
 72 
 73         skl_ipc_set_large_config(&ctx->ipc, &msg, (u32 *)&mask);
 74 }
 75 
 76 static int skl_dsp_setup_spib(struct device *dev, unsigned int size,
 77                                 int stream_tag, int enable)
 78 {
 79         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
 80         struct hdac_bus *bus = ebus_to_hbus(ebus);
 81         struct hdac_stream *stream = snd_hdac_get_stream(bus,
 82                         SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
 83         struct hdac_ext_stream *estream;
 84 
 85         if (!stream)
 86                 return -EINVAL;
 87 
 88         estream = stream_to_hdac_ext_stream(stream);
 89         /* enable/disable SPIB for this hdac stream */
 90         snd_hdac_ext_stream_spbcap_enable(ebus, enable, stream->index);
 91 
 92         /* set the spib value */
 93         snd_hdac_ext_stream_set_spib(ebus, estream, size);
 94 
 95         return 0;
 96 }
 97 
 98 static int skl_dsp_prepare(struct device *dev, unsigned int format,
 99                         unsigned int size, struct snd_dma_buffer *dmab)
100 {
101         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
102         struct hdac_bus *bus = ebus_to_hbus(ebus);
103         struct hdac_ext_stream *estream;
104         struct hdac_stream *stream;
105         struct snd_pcm_substream substream;
106         int ret;
107 
108         if (!bus)
109                 return -ENODEV;
110 
111         memset(&substream, 0, sizeof(substream));
112         substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
113 
114         estream = snd_hdac_ext_stream_assign(ebus, &substream,
115                                         HDAC_EXT_STREAM_TYPE_HOST);
116         if (!estream)
117                 return -ENODEV;
118 
119         stream = hdac_stream(estream);
120 
121         /* assign decouple host dma channel */
122         ret = snd_hdac_dsp_prepare(stream, format, size, dmab);
123         if (ret < 0)
124                 return ret;
125 
126         skl_dsp_setup_spib(dev, size, stream->stream_tag, true);
127 
128         return stream->stream_tag;
129 }
130 
131 static int skl_dsp_trigger(struct device *dev, bool start, int stream_tag)
132 {
133         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
134         struct hdac_stream *stream;
135         struct hdac_bus *bus = ebus_to_hbus(ebus);
136 
137         if (!bus)
138                 return -ENODEV;
139 
140         stream = snd_hdac_get_stream(bus,
141                 SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
142         if (!stream)
143                 return -EINVAL;
144 
145         snd_hdac_dsp_trigger(stream, start);
146 
147         return 0;
148 }
149 
150 static int skl_dsp_cleanup(struct device *dev,
151                 struct snd_dma_buffer *dmab, int stream_tag)
152 {
153         struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
154         struct hdac_stream *stream;
155         struct hdac_ext_stream *estream;
156         struct hdac_bus *bus = ebus_to_hbus(ebus);
157 
158         if (!bus)
159                 return -ENODEV;
160 
161         stream = snd_hdac_get_stream(bus,
162                 SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
163         if (!stream)
164                 return -EINVAL;
165 
166         estream = stream_to_hdac_ext_stream(stream);
167         skl_dsp_setup_spib(dev, 0, stream_tag, false);
168         snd_hdac_ext_stream_release(estream, HDAC_EXT_STREAM_TYPE_HOST);
169 
170         snd_hdac_dsp_cleanup(stream, dmab);
171 
172         return 0;
173 }
174 
175 static struct skl_dsp_loader_ops skl_get_loader_ops(void)
176 {
177         struct skl_dsp_loader_ops loader_ops;
178 
179         memset(&loader_ops, 0, sizeof(struct skl_dsp_loader_ops));
180 
181         loader_ops.alloc_dma_buf = skl_alloc_dma_buf;
182         loader_ops.free_dma_buf = skl_free_dma_buf;
183 
184         return loader_ops;
185 };
186 
187 static struct skl_dsp_loader_ops bxt_get_loader_ops(void)
188 {
189         struct skl_dsp_loader_ops loader_ops;
190 
191         memset(&loader_ops, 0, sizeof(loader_ops));
192 
193         loader_ops.alloc_dma_buf = skl_alloc_dma_buf;
194         loader_ops.free_dma_buf = skl_free_dma_buf;
195         loader_ops.prepare = skl_dsp_prepare;
196         loader_ops.trigger = skl_dsp_trigger;
197         loader_ops.cleanup = skl_dsp_cleanup;
198 
199         return loader_ops;
200 };
201 
202 static const struct skl_dsp_ops dsp_ops[] = {
203         {
204                 .id = 0x9d70,
205                 .num_cores = 2,
206                 .loader_ops = skl_get_loader_ops,
207                 .init = skl_sst_dsp_init,
208                 .init_fw = skl_sst_init_fw,
209                 .cleanup = skl_sst_dsp_cleanup
210         },
211         {
212                 .id = 0x9d71,
213                 .num_cores = 2,
214                 .loader_ops = skl_get_loader_ops,
215                 .init = kbl_sst_dsp_init,
216                 .init_fw = skl_sst_init_fw,
217                 .cleanup = skl_sst_dsp_cleanup
218         },
219         {
220                 .id = 0x5a98,
221                 .num_cores = 2,
222                 .loader_ops = bxt_get_loader_ops,
223                 .init = bxt_sst_dsp_init,
224                 .init_fw = bxt_sst_init_fw,
225                 .cleanup = bxt_sst_dsp_cleanup
226         },
227         {
228                 .id = 0x3198,
229                 .num_cores = 2,
230                 .loader_ops = bxt_get_loader_ops,
231                 .init = bxt_sst_dsp_init,
232                 .init_fw = bxt_sst_init_fw,
233                 .cleanup = bxt_sst_dsp_cleanup
234         },
235         {
236                 .id = 0x9dc8,
237                 .num_cores = 4,
238                 .loader_ops = bxt_get_loader_ops,
239                 .init = cnl_sst_dsp_init,
240                 .init_fw = cnl_sst_init_fw,
241                 .cleanup = cnl_sst_dsp_cleanup
242         },
243 };
244 
245 const struct skl_dsp_ops *skl_get_dsp_ops(int pci_id)
246 {
247         int i;
248 
249         for (i = 0; i < ARRAY_SIZE(dsp_ops); i++) {
250                 if (dsp_ops[i].id == pci_id)
251                         return &dsp_ops[i];
252         }
253 
254         return NULL;
255 }
256 
257 int skl_init_dsp(struct skl *skl)
258 {
259         void __iomem *mmio_base;
260         struct hdac_ext_bus *ebus = &skl->ebus;
261         struct hdac_bus *bus = ebus_to_hbus(ebus);
262         struct skl_dsp_loader_ops loader_ops;
263         int irq = bus->irq;
264         const struct skl_dsp_ops *ops;
265         struct skl_dsp_cores *cores;
266         int ret;
267 
268         /* enable ppcap interrupt */
269         snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
270         snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
271 
272         /* read the BAR of the ADSP MMIO */
273         mmio_base = pci_ioremap_bar(skl->pci, 4);
274         if (mmio_base == NULL) {
275                 dev_err(bus->dev, "ioremap error\n");
276                 return -ENXIO;
277         }
278 
279         ops = skl_get_dsp_ops(skl->pci->device);
280         if (!ops) {
281                 ret = -EIO;
282                 goto unmap_mmio;
283         }
284 
285         loader_ops = ops->loader_ops();
286         ret = ops->init(bus->dev, mmio_base, irq,
287                                 skl->fw_name, loader_ops,
288                                 &skl->skl_sst);
289 
290         if (ret < 0)
291                 goto unmap_mmio;
292 
293         skl->skl_sst->dsp_ops = ops;
294         cores = &skl->skl_sst->cores;
295         cores->count = ops->num_cores;
296 
297         cores->state = kcalloc(cores->count, sizeof(*cores->state), GFP_KERNEL);
298         if (!cores->state) {
299                 ret = -ENOMEM;
300                 goto unmap_mmio;
301         }
302 
303         cores->usage_count = kcalloc(cores->count, sizeof(*cores->usage_count),
304                                      GFP_KERNEL);
305         if (!cores->usage_count) {
306                 ret = -ENOMEM;
307                 goto free_core_state;
308         }
309 
310         dev_dbg(bus->dev, "dsp registration status=%d\n", ret);
311 
312         return 0;
313 
314 free_core_state:
315         kfree(cores->state);
316 
317 unmap_mmio:
318         iounmap(mmio_base);
319 
320         return ret;
321 }
322 
323 int skl_free_dsp(struct skl *skl)
324 {
325         struct hdac_ext_bus *ebus = &skl->ebus;
326         struct hdac_bus *bus = ebus_to_hbus(ebus);
327         struct skl_sst *ctx = skl->skl_sst;
328 
329         /* disable  ppcap interrupt */
330         snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
331 
332         ctx->dsp_ops->cleanup(bus->dev, ctx);
333 
334         kfree(ctx->cores.state);
335         kfree(ctx->cores.usage_count);
336 
337         if (ctx->dsp->addr.lpe)
338                 iounmap(ctx->dsp->addr.lpe);
339 
340         return 0;
341 }
342 
343 /*
344  * In the case of "suspend_active" i.e, the Audio IP being active
345  * during system suspend, immediately excecute any pending D0i3 work
346  * before suspending. This is needed for the IP to work in low power
347  * mode during system suspend. In the case of normal suspend, cancel
348  * any pending D0i3 work.
349  */
350 int skl_suspend_late_dsp(struct skl *skl)
351 {
352         struct skl_sst *ctx = skl->skl_sst;
353         struct delayed_work *dwork;
354 
355         if (!ctx)
356                 return 0;
357 
358         dwork = &ctx->d0i3.work;
359 
360         if (dwork->work.func) {
361                 if (skl->supend_active)
362                         flush_delayed_work(dwork);
363                 else
364                         cancel_delayed_work_sync(dwork);
365         }
366 
367         return 0;
368 }
369 
370 int skl_suspend_dsp(struct skl *skl)
371 {
372         struct skl_sst *ctx = skl->skl_sst;
373         int ret;
374 
375         /* if ppcap is not supported return 0 */
376         if (!skl->ebus.bus.ppcap)
377                 return 0;
378 
379         ret = skl_dsp_sleep(ctx->dsp);
380         if (ret < 0)
381                 return ret;
382 
383         /* disable ppcap interrupt */
384         snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, false);
385         snd_hdac_ext_bus_ppcap_enable(&skl->ebus, false);
386 
387         return 0;
388 }
389 
390 int skl_resume_dsp(struct skl *skl)
391 {
392         struct skl_sst *ctx = skl->skl_sst;
393         int ret;
394 
395         /* if ppcap is not supported return 0 */
396         if (!skl->ebus.bus.ppcap)
397                 return 0;
398 
399         /* enable ppcap interrupt */
400         snd_hdac_ext_bus_ppcap_enable(&skl->ebus, true);
401         snd_hdac_ext_bus_ppcap_int_enable(&skl->ebus, true);
402 
403         /* check if DSP 1st boot is done */
404         if (skl->skl_sst->is_first_boot == true)
405                 return 0;
406 
407         ret = skl_dsp_wake(ctx->dsp);
408         if (ret < 0)
409                 return ret;
410 
411         skl_dsp_enable_notification(skl->skl_sst, false);
412         return ret;
413 }
414 
415 enum skl_bitdepth skl_get_bit_depth(int params)
416 {
417         switch (params) {
418         case 8:
419                 return SKL_DEPTH_8BIT;
420 
421         case 16:
422                 return SKL_DEPTH_16BIT;
423 
424         case 24:
425                 return SKL_DEPTH_24BIT;
426 
427         case 32:
428                 return SKL_DEPTH_32BIT;
429 
430         default:
431                 return SKL_DEPTH_INVALID;
432 
433         }
434 }
435 
436 /*
437  * Each module in DSP expects a base module configuration, which consists of
438  * PCM format information, which we calculate in driver and resource values
439  * which are read from widget information passed through topology binary
440  * This is send when we create a module with INIT_INSTANCE IPC msg
441  */
442 static void skl_set_base_module_format(struct skl_sst *ctx,
443                         struct skl_module_cfg *mconfig,
444                         struct skl_base_cfg *base_cfg)
445 {
446         struct skl_module *module = mconfig->module;
447         struct skl_module_res *res = &module->resources[mconfig->res_idx];
448         struct skl_module_iface *fmt = &module->formats[mconfig->fmt_idx];
449         struct skl_module_fmt *format = &fmt->inputs[0].fmt;
450 
451         base_cfg->audio_fmt.number_of_channels = format->channels;
452 
453         base_cfg->audio_fmt.s_freq = format->s_freq;
454         base_cfg->audio_fmt.bit_depth = format->bit_depth;
455         base_cfg->audio_fmt.valid_bit_depth = format->valid_bit_depth;
456         base_cfg->audio_fmt.ch_cfg = format->ch_cfg;
457 
458         dev_dbg(ctx->dev, "bit_depth=%x valid_bd=%x ch_config=%x\n",
459                         format->bit_depth, format->valid_bit_depth,
460                         format->ch_cfg);
461 
462         base_cfg->audio_fmt.channel_map = format->ch_map;
463 
464         base_cfg->audio_fmt.interleaving = format->interleaving_style;
465 
466         base_cfg->cps = res->cps;
467         base_cfg->ibs = res->ibs;
468         base_cfg->obs = res->obs;
469         base_cfg->is_pages = res->is_pages;
470 }
471 
472 /*
473  * Copies copier capabilities into copier module and updates copier module
474  * config size.
475  */
476 static void skl_copy_copier_caps(struct skl_module_cfg *mconfig,
477                                 struct skl_cpr_cfg *cpr_mconfig)
478 {
479         if (mconfig->formats_config.caps_size == 0)
480                 return;
481 
482         memcpy(cpr_mconfig->gtw_cfg.config_data,
483                         mconfig->formats_config.caps,
484                         mconfig->formats_config.caps_size);
485 
486         cpr_mconfig->gtw_cfg.config_length =
487                         (mconfig->formats_config.caps_size) / 4;
488 }
489 
490 #define SKL_NON_GATEWAY_CPR_NODE_ID 0xFFFFFFFF
491 /*
492  * Calculate the gatewat settings required for copier module, type of
493  * gateway and index of gateway to use
494  */
495 static u32 skl_get_node_id(struct skl_sst *ctx,
496                         struct skl_module_cfg *mconfig)
497 {
498         union skl_connector_node_id node_id = {0};
499         union skl_ssp_dma_node ssp_node  = {0};
500         struct skl_pipe_params *params = mconfig->pipe->p_params;
501 
502         switch (mconfig->dev_type) {
503         case SKL_DEVICE_BT:
504                 node_id.node.dma_type =
505                         (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
506                         SKL_DMA_I2S_LINK_OUTPUT_CLASS :
507                         SKL_DMA_I2S_LINK_INPUT_CLASS;
508                 node_id.node.vindex = params->host_dma_id +
509                                         (mconfig->vbus_id << 3);
510                 break;
511 
512         case SKL_DEVICE_I2S:
513                 node_id.node.dma_type =
514                         (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
515                         SKL_DMA_I2S_LINK_OUTPUT_CLASS :
516                         SKL_DMA_I2S_LINK_INPUT_CLASS;
517                 ssp_node.dma_node.time_slot_index = mconfig->time_slot;
518                 ssp_node.dma_node.i2s_instance = mconfig->vbus_id;
519                 node_id.node.vindex = ssp_node.val;
520                 break;
521 
522         case SKL_DEVICE_DMIC:
523                 node_id.node.dma_type = SKL_DMA_DMIC_LINK_INPUT_CLASS;
524                 node_id.node.vindex = mconfig->vbus_id +
525                                          (mconfig->time_slot);
526                 break;
527 
528         case SKL_DEVICE_HDALINK:
529                 node_id.node.dma_type =
530                         (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
531                         SKL_DMA_HDA_LINK_OUTPUT_CLASS :
532                         SKL_DMA_HDA_LINK_INPUT_CLASS;
533                 node_id.node.vindex = params->link_dma_id;
534                 break;
535 
536         case SKL_DEVICE_HDAHOST:
537                 node_id.node.dma_type =
538                         (SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
539                         SKL_DMA_HDA_HOST_OUTPUT_CLASS :
540                         SKL_DMA_HDA_HOST_INPUT_CLASS;
541                 node_id.node.vindex = params->host_dma_id;
542                 break;
543 
544         default:
545                 node_id.val = 0xFFFFFFFF;
546                 break;
547         }
548 
549         return node_id.val;
550 }
551 
552 static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
553                         struct skl_module_cfg *mconfig,
554                         struct skl_cpr_cfg *cpr_mconfig)
555 {
556         u32 dma_io_buf;
557         struct skl_module_res *res;
558         int res_idx = mconfig->res_idx;
559         struct skl *skl = get_skl_ctx(ctx->dev);
560 
561         cpr_mconfig->gtw_cfg.node_id = skl_get_node_id(ctx, mconfig);
562 
563         if (cpr_mconfig->gtw_cfg.node_id == SKL_NON_GATEWAY_CPR_NODE_ID) {
564                 cpr_mconfig->cpr_feature_mask = 0;
565                 return;
566         }
567 
568         if (skl->nr_modules) {
569                 res = &mconfig->module->resources[mconfig->res_idx];
570                 cpr_mconfig->gtw_cfg.dma_buffer_size = res->dma_buffer_size;
571                 goto skip_buf_size_calc;
572         } else {
573                 res = &mconfig->module->resources[res_idx];
574         }
575 
576         switch (mconfig->hw_conn_type) {
577         case SKL_CONN_SOURCE:
578                 if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
579                         dma_io_buf =  res->ibs;
580                 else
581                         dma_io_buf =  res->obs;
582                 break;
583 
584         case SKL_CONN_SINK:
585                 if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
586                         dma_io_buf =  res->obs;
587                 else
588                         dma_io_buf =  res->ibs;
589                 break;
590 
591         default:
592                 dev_warn(ctx->dev, "wrong connection type: %d\n",
593                                 mconfig->hw_conn_type);
594                 return;
595         }
596 
597         cpr_mconfig->gtw_cfg.dma_buffer_size =
598                                 mconfig->dma_buffer_size * dma_io_buf;
599 
600         /* fallback to 2ms default value */
601         if (!cpr_mconfig->gtw_cfg.dma_buffer_size) {
602                 if (mconfig->hw_conn_type == SKL_CONN_SOURCE)
603                         cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->obs;
604                 else
605                         cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->ibs;
606         }
607 
608 skip_buf_size_calc:
609         cpr_mconfig->cpr_feature_mask = 0;
610         cpr_mconfig->gtw_cfg.config_length  = 0;
611 
612         skl_copy_copier_caps(mconfig, cpr_mconfig);
613 }
614 
615 #define DMA_CONTROL_ID 5
616 
617 int skl_dsp_set_dma_control(struct skl_sst *ctx, struct skl_module_cfg *mconfig)
618 {
619         struct skl_dma_control *dma_ctrl;
620         struct skl_ipc_large_config_msg msg = {0};
621         int err = 0;
622 
623 
624         /*
625          * if blob size zero, then return
626          */
627         if (mconfig->formats_config.caps_size == 0)
628                 return 0;
629 
630         msg.large_param_id = DMA_CONTROL_ID;
631         msg.param_data_size = sizeof(struct skl_dma_control) +
632                                 mconfig->formats_config.caps_size;
633 
634         dma_ctrl = kzalloc(msg.param_data_size, GFP_KERNEL);
635         if (dma_ctrl == NULL)
636                 return -ENOMEM;
637 
638         dma_ctrl->node_id = skl_get_node_id(ctx, mconfig);
639 
640         /* size in dwords */
641         dma_ctrl->config_length = mconfig->formats_config.caps_size / 4;
642 
643         memcpy(dma_ctrl->config_data, mconfig->formats_config.caps,
644                                 mconfig->formats_config.caps_size);
645 
646         err = skl_ipc_set_large_config(&ctx->ipc, &msg, (u32 *)dma_ctrl);
647 
648         kfree(dma_ctrl);
649         return err;
650 }
651 
652 static void skl_setup_out_format(struct skl_sst *ctx,
653                         struct skl_module_cfg *mconfig,
654                         struct skl_audio_data_format *out_fmt)
655 {
656         struct skl_module *module = mconfig->module;
657         struct skl_module_iface *fmt = &module->formats[mconfig->fmt_idx];
658         struct skl_module_fmt *format = &fmt->outputs[0].fmt;
659 
660         out_fmt->number_of_channels = (u8)format->channels;
661         out_fmt->s_freq = format->s_freq;
662         out_fmt->bit_depth = format->bit_depth;
663         out_fmt->valid_bit_depth = format->valid_bit_depth;
664         out_fmt->ch_cfg = format->ch_cfg;
665 
666         out_fmt->channel_map = format->ch_map;
667         out_fmt->interleaving = format->interleaving_style;
668         out_fmt->sample_type = format->sample_type;
669 
670         dev_dbg(ctx->dev, "copier out format chan=%d fre=%d bitdepth=%d\n",
671                 out_fmt->number_of_channels, format->s_freq, format->bit_depth);
672 }
673 
674 /*
675  * DSP needs SRC module for frequency conversion, SRC takes base module
676  * configuration and the target frequency as extra parameter passed as src
677  * config
678  */
679 static void skl_set_src_format(struct skl_sst *ctx,
680                         struct skl_module_cfg *mconfig,
681                         struct skl_src_module_cfg *src_mconfig)
682 {
683         struct skl_module *module = mconfig->module;
684         struct skl_module_iface *iface = &module->formats[mconfig->fmt_idx];
685         struct skl_module_fmt *fmt = &iface->outputs[0].fmt;
686 
687         skl_set_base_module_format(ctx, mconfig,
688                 (struct skl_base_cfg *)src_mconfig);
689 
690         src_mconfig->src_cfg = fmt->s_freq;
691 }
692 
693 /*
694  * DSP needs updown module to do channel conversion. updown module take base
695  * module configuration and channel configuration
696  * It also take coefficients and now we have defaults applied here
697  */
698 static void skl_set_updown_mixer_format(struct skl_sst *ctx,
699                         struct skl_module_cfg *mconfig,
700                         struct skl_up_down_mixer_cfg *mixer_mconfig)
701 {
702         struct skl_module *module = mconfig->module;
703         struct skl_module_iface *iface = &module->formats[mconfig->fmt_idx];
704         struct skl_module_fmt *fmt = &iface->outputs[0].fmt;
705         int i = 0;
706 
707         skl_set_base_module_format(ctx, mconfig,
708                 (struct skl_base_cfg *)mixer_mconfig);
709         mixer_mconfig->out_ch_cfg = fmt->ch_cfg;
710 
711         /* Select F/W default coefficient */
712         mixer_mconfig->coeff_sel = 0x0;
713 
714         /* User coeff, don't care since we are selecting F/W defaults */
715         for (i = 0; i < UP_DOWN_MIXER_MAX_COEFF; i++)
716                 mixer_mconfig->coeff[i] = 0xDEADBEEF;
717 }
718 
719 /*
720  * 'copier' is DSP internal module which copies data from Host DMA (HDA host
721  * dma) or link (hda link, SSP, PDM)
722  * Here we calculate the copier module parameters, like PCM format, output
723  * format, gateway settings
724  * copier_module_config is sent as input buffer with INIT_INSTANCE IPC msg
725  */
726 static void skl_set_copier_format(struct skl_sst *ctx,
727                         struct skl_module_cfg *mconfig,
728                         struct skl_cpr_cfg *cpr_mconfig)
729 {
730         struct skl_audio_data_format *out_fmt = &cpr_mconfig->out_fmt;
731         struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)cpr_mconfig;
732 
733         skl_set_base_module_format(ctx, mconfig, base_cfg);
734 
735         skl_setup_out_format(ctx, mconfig, out_fmt);
736         skl_setup_cpr_gateway_cfg(ctx, mconfig, cpr_mconfig);
737 }
738 
739 /*
740  * Algo module are DSP pre processing modules. Algo module take base module
741  * configuration and params
742  */
743 
744 static void skl_set_algo_format(struct skl_sst *ctx,
745                         struct skl_module_cfg *mconfig,
746                         struct skl_algo_cfg *algo_mcfg)
747 {
748         struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)algo_mcfg;
749 
750         skl_set_base_module_format(ctx, mconfig, base_cfg);
751 
752         if (mconfig->formats_config.caps_size == 0)
753                 return;
754 
755         memcpy(algo_mcfg->params,
756                         mconfig->formats_config.caps,
757                         mconfig->formats_config.caps_size);
758 
759 }
760 
761 /*
762  * Mic select module allows selecting one or many input channels, thus
763  * acting as a demux.
764  *
765  * Mic select module take base module configuration and out-format
766  * configuration
767  */
768 static void skl_set_base_outfmt_format(struct skl_sst *ctx,
769                         struct skl_module_cfg *mconfig,
770                         struct skl_base_outfmt_cfg *base_outfmt_mcfg)
771 {
772         struct skl_audio_data_format *out_fmt = &base_outfmt_mcfg->out_fmt;
773         struct skl_base_cfg *base_cfg =
774                                 (struct skl_base_cfg *)base_outfmt_mcfg;
775 
776         skl_set_base_module_format(ctx, mconfig, base_cfg);
777         skl_setup_out_format(ctx, mconfig, out_fmt);
778 }
779 
780 static u16 skl_get_module_param_size(struct skl_sst *ctx,
781                         struct skl_module_cfg *mconfig)
782 {
783         u16 param_size;
784 
785         switch (mconfig->m_type) {
786         case SKL_MODULE_TYPE_COPIER:
787                 param_size = sizeof(struct skl_cpr_cfg);
788                 param_size += mconfig->formats_config.caps_size;
789                 return param_size;
790 
791         case SKL_MODULE_TYPE_SRCINT:
792                 return sizeof(struct skl_src_module_cfg);
793 
794         case SKL_MODULE_TYPE_UPDWMIX:
795                 return sizeof(struct skl_up_down_mixer_cfg);
796 
797         case SKL_MODULE_TYPE_ALGO:
798                 param_size = sizeof(struct skl_base_cfg);
799                 param_size += mconfig->formats_config.caps_size;
800                 return param_size;
801 
802         case SKL_MODULE_TYPE_BASE_OUTFMT:
803         case SKL_MODULE_TYPE_MIC_SELECT:
804         case SKL_MODULE_TYPE_KPB:
805                 return sizeof(struct skl_base_outfmt_cfg);
806 
807         default:
808                 /*
809                  * return only base cfg when no specific module type is
810                  * specified
811                  */
812                 return sizeof(struct skl_base_cfg);
813         }
814 
815         return 0;
816 }
817 
818 /*
819  * DSP firmware supports various modules like copier, SRC, updown etc.
820  * These modules required various parameters to be calculated and sent for
821  * the module initialization to DSP. By default a generic module needs only
822  * base module format configuration
823  */
824 
825 static int skl_set_module_format(struct skl_sst *ctx,
826                         struct skl_module_cfg *module_config,
827                         u16 *module_config_size,
828                         void **param_data)
829 {
830         u16 param_size;
831 
832         param_size  = skl_get_module_param_size(ctx, module_config);
833 
834         *param_data = kzalloc(param_size, GFP_KERNEL);
835         if (NULL == *param_data)
836                 return -ENOMEM;
837 
838         *module_config_size = param_size;
839 
840         switch (module_config->m_type) {
841         case SKL_MODULE_TYPE_COPIER:
842                 skl_set_copier_format(ctx, module_config, *param_data);
843                 break;
844 
845         case SKL_MODULE_TYPE_SRCINT:
846                 skl_set_src_format(ctx, module_config, *param_data);
847                 break;
848 
849         case SKL_MODULE_TYPE_UPDWMIX:
850                 skl_set_updown_mixer_format(ctx, module_config, *param_data);
851                 break;
852 
853         case SKL_MODULE_TYPE_ALGO:
854                 skl_set_algo_format(ctx, module_config, *param_data);
855                 break;
856 
857         case SKL_MODULE_TYPE_BASE_OUTFMT:
858         case SKL_MODULE_TYPE_MIC_SELECT:
859         case SKL_MODULE_TYPE_KPB:
860                 skl_set_base_outfmt_format(ctx, module_config, *param_data);
861                 break;
862 
863         default:
864                 skl_set_base_module_format(ctx, module_config, *param_data);
865                 break;
866 
867         }
868 
869         dev_dbg(ctx->dev, "Module type=%d config size: %d bytes\n",
870                         module_config->id.module_id, param_size);
871         print_hex_dump_debug("Module params:", DUMP_PREFIX_OFFSET, 8, 4,
872                         *param_data, param_size, false);
873         return 0;
874 }
875 
876 static int skl_get_queue_index(struct skl_module_pin *mpin,
877                                 struct skl_module_inst_id id, int max)
878 {
879         int i;
880 
881         for (i = 0; i < max; i++)  {
882                 if (mpin[i].id.module_id == id.module_id &&
883                         mpin[i].id.instance_id == id.instance_id)
884                         return i;
885         }
886 
887         return -EINVAL;
888 }
889 
890 /*
891  * Allocates queue for each module.
892  * if dynamic, the pin_index is allocated 0 to max_pin.
893  * In static, the pin_index is fixed based on module_id and instance id
894  */
895 static int skl_alloc_queue(struct skl_module_pin *mpin,
896                         struct skl_module_cfg *tgt_cfg, int max)
897 {
898         int i;
899         struct skl_module_inst_id id = tgt_cfg->id;
900         /*
901          * if pin in dynamic, find first free pin
902          * otherwise find match module and instance id pin as topology will
903          * ensure a unique pin is assigned to this so no need to
904          * allocate/free
905          */
906         for (i = 0; i < max; i++)  {
907                 if (mpin[i].is_dynamic) {
908                         if (!mpin[i].in_use &&
909                                 mpin[i].pin_state == SKL_PIN_UNBIND) {
910 
911                                 mpin[i].in_use = true;
912                                 mpin[i].id.module_id = id.module_id;
913                                 mpin[i].id.instance_id = id.instance_id;
914                                 mpin[i].id.pvt_id = id.pvt_id;
915                                 mpin[i].tgt_mcfg = tgt_cfg;
916                                 return i;
917                         }
918                 } else {
919                         if (mpin[i].id.module_id == id.module_id &&
920                                 mpin[i].id.instance_id == id.instance_id &&
921                                 mpin[i].pin_state == SKL_PIN_UNBIND) {
922 
923                                 mpin[i].tgt_mcfg = tgt_cfg;
924                                 return i;
925                         }
926                 }
927         }
928 
929         return -EINVAL;
930 }
931 
932 static void skl_free_queue(struct skl_module_pin *mpin, int q_index)
933 {
934         if (mpin[q_index].is_dynamic) {
935                 mpin[q_index].in_use = false;
936                 mpin[q_index].id.module_id = 0;
937                 mpin[q_index].id.instance_id = 0;
938                 mpin[q_index].id.pvt_id = 0;
939         }
940         mpin[q_index].pin_state = SKL_PIN_UNBIND;
941         mpin[q_index].tgt_mcfg = NULL;
942 }
943 
944 /* Module state will be set to unint, if all the out pin state is UNBIND */
945 
946 static void skl_clear_module_state(struct skl_module_pin *mpin, int max,
947                                                 struct skl_module_cfg *mcfg)
948 {
949         int i;
950         bool found = false;
951 
952         for (i = 0; i < max; i++)  {
953                 if (mpin[i].pin_state == SKL_PIN_UNBIND)
954                         continue;
955                 found = true;
956                 break;
957         }
958 
959         if (!found)
960                 mcfg->m_state = SKL_MODULE_INIT_DONE;
961         return;
962 }
963 
964 /*
965  * A module needs to be instanataited in DSP. A mdoule is present in a
966  * collection of module referred as a PIPE.
967  * We first calculate the module format, based on module type and then
968  * invoke the DSP by sending IPC INIT_INSTANCE using ipc helper
969  */
970 int skl_init_module(struct skl_sst *ctx,
971                         struct skl_module_cfg *mconfig)
972 {
973         u16 module_config_size = 0;
974         void *param_data = NULL;
975         int ret;
976         struct skl_ipc_init_instance_msg msg;
977 
978         dev_dbg(ctx->dev, "%s: module_id = %d instance=%d\n", __func__,
979                  mconfig->id.module_id, mconfig->id.pvt_id);
980 
981         if (mconfig->pipe->state != SKL_PIPE_CREATED) {
982                 dev_err(ctx->dev, "Pipe not created state= %d pipe_id= %d\n",
983                                  mconfig->pipe->state, mconfig->pipe->ppl_id);
984                 return -EIO;
985         }
986 
987         ret = skl_set_module_format(ctx, mconfig,
988                         &module_config_size, &param_data);
989         if (ret < 0) {
990                 dev_err(ctx->dev, "Failed to set module format ret=%d\n", ret);
991                 return ret;
992         }
993 
994         msg.module_id = mconfig->id.module_id;
995         msg.instance_id = mconfig->id.pvt_id;
996         msg.ppl_instance_id = mconfig->pipe->ppl_id;
997         msg.param_data_size = module_config_size;
998         msg.core_id = mconfig->core_id;
999         msg.domain = mconfig->domain;
1000 
1001         ret = skl_ipc_init_instance(&ctx->ipc, &msg, param_data);
1002         if (ret < 0) {
1003                 dev_err(ctx->dev, "Failed to init instance ret=%d\n", ret);
1004                 kfree(param_data);
1005                 return ret;
1006         }
1007         mconfig->m_state = SKL_MODULE_INIT_DONE;
1008         kfree(param_data);
1009         return ret;
1010 }
1011 
1012 static void skl_dump_bind_info(struct skl_sst *ctx, struct skl_module_cfg
1013         *src_module, struct skl_module_cfg *dst_module)
1014 {
1015         dev_dbg(ctx->dev, "%s: src module_id = %d  src_instance=%d\n",
1016                 __func__, src_module->id.module_id, src_module->id.pvt_id);
1017         dev_dbg(ctx->dev, "%s: dst_module=%d dst_instance=%d\n", __func__,
1018                  dst_module->id.module_id, dst_module->id.pvt_id);
1019 
1020         dev_dbg(ctx->dev, "src_module state = %d dst module state = %d\n",
1021                 src_module->m_state, dst_module->m_state);
1022 }
1023 
1024 /*
1025  * On module freeup, we need to unbind the module with modules
1026  * it is already bind.
1027  * Find the pin allocated and unbind then using bind_unbind IPC
1028  */
1029 int skl_unbind_modules(struct skl_sst *ctx,
1030                         struct skl_module_cfg *src_mcfg,
1031                         struct skl_module_cfg *dst_mcfg)
1032 {
1033         int ret;
1034         struct skl_ipc_bind_unbind_msg msg;
1035         struct skl_module_inst_id src_id = src_mcfg->id;
1036         struct skl_module_inst_id dst_id = dst_mcfg->id;
1037         int in_max = dst_mcfg->module->max_input_pins;
1038         int out_max = src_mcfg->module->max_output_pins;
1039         int src_index, dst_index, src_pin_state, dst_pin_state;
1040 
1041         skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
1042 
1043         /* get src queue index */
1044         src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max);
1045         if (src_index < 0)
1046                 return 0;
1047 
1048         msg.src_queue = src_index;
1049 
1050         /* get dst queue index */
1051         dst_index  = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max);
1052         if (dst_index < 0)
1053                 return 0;
1054 
1055         msg.dst_queue = dst_index;
1056 
1057         src_pin_state = src_mcfg->m_out_pin[src_index].pin_state;
1058         dst_pin_state = dst_mcfg->m_in_pin[dst_index].pin_state;
1059 
1060         if (src_pin_state != SKL_PIN_BIND_DONE ||
1061                 dst_pin_state != SKL_PIN_BIND_DONE)
1062                 return 0;
1063 
1064         msg.module_id = src_mcfg->id.module_id;
1065         msg.instance_id = src_mcfg->id.pvt_id;
1066         msg.dst_module_id = dst_mcfg->id.module_id;
1067         msg.dst_instance_id = dst_mcfg->id.pvt_id;
1068         msg.bind = false;
1069 
1070         ret = skl_ipc_bind_unbind(&ctx->ipc, &msg);
1071         if (!ret) {
1072                 /* free queue only if unbind is success */
1073                 skl_free_queue(src_mcfg->m_out_pin, src_index);
1074                 skl_free_queue(dst_mcfg->m_in_pin, dst_index);
1075 
1076                 /*
1077                  * check only if src module bind state, bind is
1078                  * always from src -> sink
1079                  */
1080                 skl_clear_module_state(src_mcfg->m_out_pin, out_max, src_mcfg);
1081         }
1082 
1083         return ret;
1084 }
1085 
1086 static void fill_pin_params(struct skl_audio_data_format *pin_fmt,
1087                                 struct skl_module_fmt *format)
1088 {
1089         pin_fmt->number_of_channels = format->channels;
1090         pin_fmt->s_freq = format->s_freq;
1091         pin_fmt->bit_depth = format->bit_depth;
1092         pin_fmt->valid_bit_depth = format->valid_bit_depth;
1093         pin_fmt->ch_cfg = format->ch_cfg;
1094         pin_fmt->sample_type = format->sample_type;
1095         pin_fmt->channel_map = format->ch_map;
1096         pin_fmt->interleaving = format->interleaving_style;
1097 }
1098 
1099 #define CPR_SINK_FMT_PARAM_ID 2
1100 
1101 /*
1102  * Once a module is instantiated it need to be 'bind' with other modules in
1103  * the pipeline. For binding we need to find the module pins which are bind
1104  * together
1105  * This function finds the pins and then sends bund_unbind IPC message to
1106  * DSP using IPC helper
1107  */
1108 int skl_bind_modules(struct skl_sst *ctx,
1109                         struct skl_module_cfg *src_mcfg,
1110                         struct skl_module_cfg *dst_mcfg)
1111 {
1112         int ret = 0;
1113         struct skl_ipc_bind_unbind_msg msg;
1114         int in_max = dst_mcfg->module->max_input_pins;
1115         int out_max = src_mcfg->module->max_output_pins;
1116         int src_index, dst_index;
1117         struct skl_module_fmt *format;
1118         struct skl_cpr_pin_fmt pin_fmt;
1119         struct skl_module *module;
1120         struct skl_module_iface *fmt;
1121 
1122         skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
1123 
1124         if (src_mcfg->m_state < SKL_MODULE_INIT_DONE ||
1125                 dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
1126                 return 0;
1127 
1128         src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_mcfg, out_max);
1129         if (src_index < 0)
1130                 return -EINVAL;
1131 
1132         msg.src_queue = src_index;
1133         dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_mcfg, in_max);
1134         if (dst_index < 0) {
1135                 skl_free_queue(src_mcfg->m_out_pin, src_index);
1136                 return -EINVAL;
1137         }
1138 
1139         /*
1140          * Copier module requires the separate large_config_set_ipc to
1141          * configure the pins other than 0
1142          */
1143         if (src_mcfg->m_type == SKL_MODULE_TYPE_COPIER && src_index > 0) {
1144                 pin_fmt.sink_id = src_index;
1145                 module = src_mcfg->module;
1146                 fmt = &module->formats[src_mcfg->fmt_idx];
1147 
1148                 /* Input fmt is same as that of src module input cfg */
1149                 format = &fmt->inputs[0].fmt;
1150                 fill_pin_params(&(pin_fmt.src_fmt), format);
1151 
1152                 format = &fmt->outputs[src_index].fmt;
1153                 fill_pin_params(&(pin_fmt.dst_fmt), format);
1154                 ret = skl_set_module_params(ctx, (void *)&pin_fmt,
1155                                         sizeof(struct skl_cpr_pin_fmt),
1156                                         CPR_SINK_FMT_PARAM_ID, src_mcfg);
1157 
1158                 if (ret < 0)
1159                         goto out;
1160         }
1161 
1162         msg.dst_queue = dst_index;
1163 
1164         dev_dbg(ctx->dev, "src queue = %d dst queue =%d\n",
1165                          msg.src_queue, msg.dst_queue);
1166 
1167         msg.module_id = src_mcfg->id.module_id;
1168         msg.instance_id = src_mcfg->id.pvt_id;
1169         msg.dst_module_id = dst_mcfg->id.module_id;
1170         msg.dst_instance_id = dst_mcfg->id.pvt_id;
1171         msg.bind = true;
1172 
1173         ret = skl_ipc_bind_unbind(&ctx->ipc, &msg);
1174 
1175         if (!ret) {
1176                 src_mcfg->m_state = SKL_MODULE_BIND_DONE;
1177                 src_mcfg->m_out_pin[src_index].pin_state = SKL_PIN_BIND_DONE;
1178                 dst_mcfg->m_in_pin[dst_index].pin_state = SKL_PIN_BIND_DONE;
1179                 return ret;
1180         }
1181 out:
1182         /* error case , if IPC fails, clear the queue index */
1183         skl_free_queue(src_mcfg->m_out_pin, src_index);
1184         skl_free_queue(dst_mcfg->m_in_pin, dst_index);
1185 
1186         return ret;
1187 }
1188 
1189 static int skl_set_pipe_state(struct skl_sst *ctx, struct skl_pipe *pipe,
1190         enum skl_ipc_pipeline_state state)
1191 {
1192         dev_dbg(ctx->dev, "%s: pipe_satate = %d\n", __func__, state);
1193 
1194         return skl_ipc_set_pipeline_state(&ctx->ipc, pipe->ppl_id, state);
1195 }
1196 
1197 /*
1198  * A pipeline is a collection of modules. Before a module in instantiated a
1199  * pipeline needs to be created for it.
1200  * This function creates pipeline, by sending create pipeline IPC messages
1201  * to FW
1202  */
1203 int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe)
1204 {
1205         int ret;
1206 
1207         dev_dbg(ctx->dev, "%s: pipe_id = %d\n", __func__, pipe->ppl_id);
1208 
1209         ret = skl_ipc_create_pipeline(&ctx->ipc, pipe->memory_pages,
1210                                 pipe->pipe_priority, pipe->ppl_id,
1211                                 pipe->lp_mode);
1212         if (ret < 0) {
1213                 dev_err(ctx->dev, "Failed to create pipeline\n");
1214                 return ret;
1215         }
1216 
1217         pipe->state = SKL_PIPE_CREATED;
1218 
1219         return 0;
1220 }
1221 
1222 /*
1223  * A pipeline needs to be deleted on cleanup. If a pipeline is running, then
1224  * pause the pipeline first and then delete it
1225  * The pipe delete is done by sending delete pipeline IPC. DSP will stop the
1226  * DMA engines and releases resources
1227  */
1228 int skl_delete_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
1229 {
1230         int ret;
1231 
1232         dev_dbg(ctx->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
1233 
1234         /* If pipe is started, do stop the pipe in FW. */
1235         if (pipe->state >= SKL_PIPE_STARTED) {
1236                 ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
1237                 if (ret < 0) {
1238                         dev_err(ctx->dev, "Failed to stop pipeline\n");
1239                         return ret;
1240                 }
1241 
1242                 pipe->state = SKL_PIPE_PAUSED;
1243         }
1244 
1245         /* If pipe was not created in FW, do not try to delete it */
1246         if (pipe->state < SKL_PIPE_CREATED)
1247                 return 0;
1248 
1249         ret = skl_ipc_delete_pipeline(&ctx->ipc, pipe->ppl_id);
1250         if (ret < 0) {
1251                 dev_err(ctx->dev, "Failed to delete pipeline\n");
1252                 return ret;
1253         }
1254 
1255         pipe->state = SKL_PIPE_INVALID;
1256 
1257         return ret;
1258 }
1259 
1260 /*
1261  * A pipeline is also a scheduling entity in DSP which can be run, stopped
1262  * For processing data the pipe need to be run by sending IPC set pipe state
1263  * to DSP
1264  */
1265 int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
1266 {
1267         int ret;
1268 
1269         dev_dbg(ctx->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
1270 
1271         /* If pipe was not created in FW, do not try to pause or delete */
1272         if (pipe->state < SKL_PIPE_CREATED)
1273                 return 0;
1274 
1275         /* Pipe has to be paused before it is started */
1276         ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
1277         if (ret < 0) {
1278                 dev_err(ctx->dev, "Failed to pause pipe\n");
1279                 return ret;
1280         }
1281 
1282         pipe->state = SKL_PIPE_PAUSED;
1283 
1284         ret = skl_set_pipe_state(ctx, pipe, PPL_RUNNING);
1285         if (ret < 0) {
1286                 dev_err(ctx->dev, "Failed to start pipe\n");
1287                 return ret;
1288         }
1289 
1290         pipe->state = SKL_PIPE_STARTED;
1291 
1292         return 0;
1293 }
1294 
1295 /*
1296  * Stop the pipeline by sending set pipe state IPC
1297  * DSP doesnt implement stop so we always send pause message
1298  */
1299 int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
1300 {
1301         int ret;
1302 
1303         dev_dbg(ctx->dev, "In %s pipe=%d\n", __func__, pipe->ppl_id);
1304 
1305         /* If pipe was not created in FW, do not try to pause or delete */
1306         if (pipe->state < SKL_PIPE_PAUSED)
1307                 return 0;
1308 
1309         ret = skl_set_pipe_state(ctx, pipe, PPL_PAUSED);
1310         if (ret < 0) {
1311                 dev_dbg(ctx->dev, "Failed to stop pipe\n");
1312                 return ret;
1313         }
1314 
1315         pipe->state = SKL_PIPE_PAUSED;
1316 
1317         return 0;
1318 }
1319 
1320 /*
1321  * Reset the pipeline by sending set pipe state IPC this will reset the DMA
1322  * from the DSP side
1323  */
1324 int skl_reset_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
1325 {
1326         int ret;
1327 
1328         /* If pipe was not created in FW, do not try to pause or delete */
1329         if (pipe->state < SKL_PIPE_PAUSED)
1330                 return 0;
1331 
1332         ret = skl_set_pipe_state(ctx, pipe, PPL_RESET);
1333         if (ret < 0) {
1334                 dev_dbg(ctx->dev, "Failed to reset pipe ret=%d\n", ret);
1335                 return ret;
1336         }
1337 
1338         pipe->state = SKL_PIPE_RESET;
1339 
1340         return 0;
1341 }
1342 
1343 /* Algo parameter set helper function */
1344 int skl_set_module_params(struct skl_sst *ctx, u32 *params, int size,
1345                                 u32 param_id, struct skl_module_cfg *mcfg)
1346 {
1347         struct skl_ipc_large_config_msg msg;
1348 
1349         msg.module_id = mcfg->id.module_id;
1350         msg.instance_id = mcfg->id.pvt_id;
1351         msg.param_data_size = size;
1352         msg.large_param_id = param_id;
1353 
1354         return skl_ipc_set_large_config(&ctx->ipc, &msg, params);
1355 }
1356 
1357 int skl_get_module_params(struct skl_sst *ctx, u32 *params, int size,
1358                           u32 param_id, struct skl_module_cfg *mcfg)
1359 {
1360         struct skl_ipc_large_config_msg msg;
1361 
1362         msg.module_id = mcfg->id.module_id;
1363         msg.instance_id = mcfg->id.pvt_id;
1364         msg.param_data_size = size;
1365         msg.large_param_id = param_id;
1366 
1367         return skl_ipc_get_large_config(&ctx->ipc, &msg, params);
1368 }
1369 

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