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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *  skl-message.c - HDA DSP interface for FW registration, Pipe and Module
   4 *  configurations
   5 *
   6 *  Copyright (C) 2015 Intel Corp
   7 *  Author:Rafal Redzimski <rafal.f.redzimski@intel.com>
   8 *	   Jeeja KP <jeeja.kp@intel.com>
   9 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10 */
  11
  12#include <linux/slab.h>
  13#include <linux/pci.h>
  14#include <sound/core.h>
  15#include <sound/pcm.h>
  16#include <uapi/sound/skl-tplg-interface.h>
  17#include "skl-sst-dsp.h"
  18#include "cnl-sst-dsp.h"
  19#include "skl-sst-ipc.h"
  20#include "skl.h"
  21#include "../common/sst-dsp.h"
  22#include "../common/sst-dsp-priv.h"
  23#include "skl-topology.h"
  24
  25static int skl_alloc_dma_buf(struct device *dev,
  26		struct snd_dma_buffer *dmab, size_t size)
  27{
  28	return snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size, dmab);
  29}
  30
  31static int skl_free_dma_buf(struct device *dev, struct snd_dma_buffer *dmab)
  32{
  33	snd_dma_free_pages(dmab);
  34	return 0;
  35}
  36
  37#define SKL_ASTATE_PARAM_ID	4
  38
  39void skl_dsp_set_astate_cfg(struct skl_dev *skl, u32 cnt, void *data)
  40{
  41	struct skl_ipc_large_config_msg	msg = {0};
  42
  43	msg.large_param_id = SKL_ASTATE_PARAM_ID;
  44	msg.param_data_size = (cnt * sizeof(struct skl_astate_param) +
  45				sizeof(cnt));
  46
  47	skl_ipc_set_large_config(&skl->ipc, &msg, data);
  48}
  49
  50static int skl_dsp_setup_spib(struct device *dev, unsigned int size,
  51				int stream_tag, int enable)
  52{
  53	struct hdac_bus *bus = dev_get_drvdata(dev);
  54	struct hdac_stream *stream = snd_hdac_get_stream(bus,
  55			SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
  56	struct hdac_ext_stream *estream;
  57
  58	if (!stream)
  59		return -EINVAL;
  60
  61	estream = stream_to_hdac_ext_stream(stream);
  62	/* enable/disable SPIB for this hdac stream */
  63	snd_hdac_ext_stream_spbcap_enable(bus, enable, stream->index);
  64
  65	/* set the spib value */
  66	snd_hdac_ext_stream_set_spib(bus, estream, size);
  67
  68	return 0;
  69}
  70
  71static int skl_dsp_prepare(struct device *dev, unsigned int format,
  72			unsigned int size, struct snd_dma_buffer *dmab)
  73{
  74	struct hdac_bus *bus = dev_get_drvdata(dev);
  75	struct hdac_ext_stream *estream;
  76	struct hdac_stream *stream;
  77	struct snd_pcm_substream substream;
  78	int ret;
  79
  80	if (!bus)
  81		return -ENODEV;
  82
  83	memset(&substream, 0, sizeof(substream));
  84	substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
  85
  86	estream = snd_hdac_ext_stream_assign(bus, &substream,
  87					HDAC_EXT_STREAM_TYPE_HOST);
  88	if (!estream)
  89		return -ENODEV;
  90
  91	stream = hdac_stream(estream);
  92
  93	/* assign decouple host dma channel */
  94	ret = snd_hdac_dsp_prepare(stream, format, size, dmab);
  95	if (ret < 0)
  96		return ret;
  97
  98	skl_dsp_setup_spib(dev, size, stream->stream_tag, true);
  99
 100	return stream->stream_tag;
 101}
 102
 103static int skl_dsp_trigger(struct device *dev, bool start, int stream_tag)
 104{
 105	struct hdac_bus *bus = dev_get_drvdata(dev);
 106	struct hdac_stream *stream;
 107
 108	if (!bus)
 109		return -ENODEV;
 110
 111	stream = snd_hdac_get_stream(bus,
 112		SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
 113	if (!stream)
 114		return -EINVAL;
 115
 116	snd_hdac_dsp_trigger(stream, start);
 117
 118	return 0;
 119}
 120
 121static int skl_dsp_cleanup(struct device *dev,
 122		struct snd_dma_buffer *dmab, int stream_tag)
 123{
 124	struct hdac_bus *bus = dev_get_drvdata(dev);
 125	struct hdac_stream *stream;
 126	struct hdac_ext_stream *estream;
 127
 128	if (!bus)
 129		return -ENODEV;
 130
 131	stream = snd_hdac_get_stream(bus,
 132		SNDRV_PCM_STREAM_PLAYBACK, stream_tag);
 133	if (!stream)
 134		return -EINVAL;
 135
 136	estream = stream_to_hdac_ext_stream(stream);
 137	skl_dsp_setup_spib(dev, 0, stream_tag, false);
 138	snd_hdac_ext_stream_release(estream, HDAC_EXT_STREAM_TYPE_HOST);
 139
 140	snd_hdac_dsp_cleanup(stream, dmab);
 141
 142	return 0;
 143}
 144
 145static struct skl_dsp_loader_ops skl_get_loader_ops(void)
 146{
 147	struct skl_dsp_loader_ops loader_ops;
 148
 149	memset(&loader_ops, 0, sizeof(struct skl_dsp_loader_ops));
 150
 151	loader_ops.alloc_dma_buf = skl_alloc_dma_buf;
 152	loader_ops.free_dma_buf = skl_free_dma_buf;
 153
 154	return loader_ops;
 155};
 156
 157static struct skl_dsp_loader_ops bxt_get_loader_ops(void)
 158{
 159	struct skl_dsp_loader_ops loader_ops;
 160
 161	memset(&loader_ops, 0, sizeof(loader_ops));
 162
 163	loader_ops.alloc_dma_buf = skl_alloc_dma_buf;
 164	loader_ops.free_dma_buf = skl_free_dma_buf;
 165	loader_ops.prepare = skl_dsp_prepare;
 166	loader_ops.trigger = skl_dsp_trigger;
 167	loader_ops.cleanup = skl_dsp_cleanup;
 168
 169	return loader_ops;
 170};
 171
 172static const struct skl_dsp_ops dsp_ops[] = {
 173	{
 174		.id = 0x9d70,
 175		.num_cores = 2,
 176		.loader_ops = skl_get_loader_ops,
 177		.init = skl_sst_dsp_init,
 178		.init_fw = skl_sst_init_fw,
 179		.cleanup = skl_sst_dsp_cleanup
 180	},
 181	{
 182		.id = 0x9d71,
 183		.num_cores = 2,
 184		.loader_ops = skl_get_loader_ops,
 185		.init = skl_sst_dsp_init,
 186		.init_fw = skl_sst_init_fw,
 187		.cleanup = skl_sst_dsp_cleanup
 188	},
 189	{
 190		.id = 0x5a98,
 191		.num_cores = 2,
 192		.loader_ops = bxt_get_loader_ops,
 193		.init = bxt_sst_dsp_init,
 194		.init_fw = bxt_sst_init_fw,
 195		.cleanup = bxt_sst_dsp_cleanup
 196	},
 197	{
 198		.id = 0x3198,
 199		.num_cores = 2,
 200		.loader_ops = bxt_get_loader_ops,
 201		.init = bxt_sst_dsp_init,
 202		.init_fw = bxt_sst_init_fw,
 203		.cleanup = bxt_sst_dsp_cleanup
 204	},
 205	{
 206		.id = 0x9dc8,
 207		.num_cores = 4,
 208		.loader_ops = bxt_get_loader_ops,
 209		.init = cnl_sst_dsp_init,
 210		.init_fw = cnl_sst_init_fw,
 211		.cleanup = cnl_sst_dsp_cleanup
 212	},
 213	{
 214		.id = 0xa348,
 215		.num_cores = 4,
 216		.loader_ops = bxt_get_loader_ops,
 217		.init = cnl_sst_dsp_init,
 218		.init_fw = cnl_sst_init_fw,
 219		.cleanup = cnl_sst_dsp_cleanup
 220	},
 221	{
 222		.id = 0x02c8,
 223		.num_cores = 4,
 224		.loader_ops = bxt_get_loader_ops,
 225		.init = cnl_sst_dsp_init,
 226		.init_fw = cnl_sst_init_fw,
 227		.cleanup = cnl_sst_dsp_cleanup
 228	},
 229	{
 230		.id = 0x06c8,
 231		.num_cores = 4,
 232		.loader_ops = bxt_get_loader_ops,
 233		.init = cnl_sst_dsp_init,
 234		.init_fw = cnl_sst_init_fw,
 235		.cleanup = cnl_sst_dsp_cleanup
 236	},
 237};
 238
 239const struct skl_dsp_ops *skl_get_dsp_ops(int pci_id)
 240{
 241	int i;
 242
 243	for (i = 0; i < ARRAY_SIZE(dsp_ops); i++) {
 244		if (dsp_ops[i].id == pci_id)
 245			return &dsp_ops[i];
 246	}
 247
 248	return NULL;
 249}
 250
 251int skl_init_dsp(struct skl_dev *skl)
 252{
 253	void __iomem *mmio_base;
 254	struct hdac_bus *bus = skl_to_bus(skl);
 255	struct skl_dsp_loader_ops loader_ops;
 256	int irq = bus->irq;
 257	const struct skl_dsp_ops *ops;
 258	struct skl_dsp_cores *cores;
 259	int ret;
 260
 261	/* enable ppcap interrupt */
 262	snd_hdac_ext_bus_ppcap_enable(bus, true);
 263	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
 264
 265	/* read the BAR of the ADSP MMIO */
 266	mmio_base = pci_ioremap_bar(skl->pci, 4);
 267	if (mmio_base == NULL) {
 268		dev_err(bus->dev, "ioremap error\n");
 269		return -ENXIO;
 270	}
 271
 272	ops = skl_get_dsp_ops(skl->pci->device);
 273	if (!ops) {
 274		ret = -EIO;
 275		goto unmap_mmio;
 276	}
 277
 278	loader_ops = ops->loader_ops();
 279	ret = ops->init(bus->dev, mmio_base, irq,
 280				skl->fw_name, loader_ops,
 281				&skl);
 282
 283	if (ret < 0)
 284		goto unmap_mmio;
 285
 286	skl->dsp_ops = ops;
 287	cores = &skl->cores;
 288	cores->count = ops->num_cores;
 289
 290	cores->state = kcalloc(cores->count, sizeof(*cores->state), GFP_KERNEL);
 291	if (!cores->state) {
 292		ret = -ENOMEM;
 293		goto unmap_mmio;
 294	}
 295
 296	cores->usage_count = kcalloc(cores->count, sizeof(*cores->usage_count),
 297				     GFP_KERNEL);
 298	if (!cores->usage_count) {
 299		ret = -ENOMEM;
 300		goto free_core_state;
 301	}
 302
 303	dev_dbg(bus->dev, "dsp registration status=%d\n", ret);
 304
 305	return 0;
 306
 307free_core_state:
 308	kfree(cores->state);
 309
 310unmap_mmio:
 311	iounmap(mmio_base);
 312
 313	return ret;
 314}
 315
 316int skl_free_dsp(struct skl_dev *skl)
 317{
 318	struct hdac_bus *bus = skl_to_bus(skl);
 319
 320	/* disable  ppcap interrupt */
 321	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
 322
 323	skl->dsp_ops->cleanup(bus->dev, skl);
 324
 325	kfree(skl->cores.state);
 326	kfree(skl->cores.usage_count);
 327
 328	if (skl->dsp->addr.lpe)
 329		iounmap(skl->dsp->addr.lpe);
 330
 331	return 0;
 332}
 333
 334/*
 335 * In the case of "suspend_active" i.e, the Audio IP being active
 336 * during system suspend, immediately excecute any pending D0i3 work
 337 * before suspending. This is needed for the IP to work in low power
 338 * mode during system suspend. In the case of normal suspend, cancel
 339 * any pending D0i3 work.
 340 */
 341int skl_suspend_late_dsp(struct skl_dev *skl)
 342{
 343	struct delayed_work *dwork;
 344
 345	if (!skl)
 346		return 0;
 347
 348	dwork = &skl->d0i3.work;
 349
 350	if (dwork->work.func) {
 351		if (skl->supend_active)
 352			flush_delayed_work(dwork);
 353		else
 354			cancel_delayed_work_sync(dwork);
 355	}
 356
 357	return 0;
 358}
 359
 360int skl_suspend_dsp(struct skl_dev *skl)
 361{
 362	struct hdac_bus *bus = skl_to_bus(skl);
 363	int ret;
 364
 365	/* if ppcap is not supported return 0 */
 366	if (!bus->ppcap)
 367		return 0;
 368
 369	ret = skl_dsp_sleep(skl->dsp);
 370	if (ret < 0)
 371		return ret;
 372
 373	/* disable ppcap interrupt */
 374	snd_hdac_ext_bus_ppcap_int_enable(bus, false);
 375	snd_hdac_ext_bus_ppcap_enable(bus, false);
 376
 377	return 0;
 378}
 379
 380int skl_resume_dsp(struct skl_dev *skl)
 381{
 382	struct hdac_bus *bus = skl_to_bus(skl);
 383	int ret;
 384
 385	/* if ppcap is not supported return 0 */
 386	if (!bus->ppcap)
 387		return 0;
 388
 389	/* enable ppcap interrupt */
 390	snd_hdac_ext_bus_ppcap_enable(bus, true);
 391	snd_hdac_ext_bus_ppcap_int_enable(bus, true);
 392
 393	/* check if DSP 1st boot is done */
 394	if (skl->is_first_boot)
 395		return 0;
 396
 397	/*
 398	 * Disable dynamic clock and power gating during firmware
 399	 * and library download
 400	 */
 401	skl->enable_miscbdcge(skl->dev, false);
 402	skl->clock_power_gating(skl->dev, false);
 403
 404	ret = skl_dsp_wake(skl->dsp);
 405	skl->enable_miscbdcge(skl->dev, true);
 406	skl->clock_power_gating(skl->dev, true);
 407	if (ret < 0)
 408		return ret;
 409
 410	if (skl->cfg.astate_cfg != NULL) {
 411		skl_dsp_set_astate_cfg(skl, skl->cfg.astate_cfg->count,
 412					skl->cfg.astate_cfg);
 413	}
 414	return ret;
 415}
 416
 417enum skl_bitdepth skl_get_bit_depth(int params)
 418{
 419	switch (params) {
 420	case 8:
 421		return SKL_DEPTH_8BIT;
 422
 423	case 16:
 424		return SKL_DEPTH_16BIT;
 425
 426	case 24:
 427		return SKL_DEPTH_24BIT;
 428
 429	case 32:
 430		return SKL_DEPTH_32BIT;
 431
 432	default:
 433		return SKL_DEPTH_INVALID;
 434
 435	}
 436}
 437
 438/*
 439 * Each module in DSP expects a base module configuration, which consists of
 440 * PCM format information, which we calculate in driver and resource values
 441 * which are read from widget information passed through topology binary
 442 * This is send when we create a module with INIT_INSTANCE IPC msg
 443 */
 444static void skl_set_base_module_format(struct skl_dev *skl,
 445			struct skl_module_cfg *mconfig,
 446			struct skl_base_cfg *base_cfg)
 447{
 448	struct skl_module *module = mconfig->module;
 449	struct skl_module_res *res = &module->resources[mconfig->res_idx];
 450	struct skl_module_iface *fmt = &module->formats[mconfig->fmt_idx];
 451	struct skl_module_fmt *format = &fmt->inputs[0].fmt;
 452
 453	base_cfg->audio_fmt.number_of_channels = format->channels;
 454
 455	base_cfg->audio_fmt.s_freq = format->s_freq;
 456	base_cfg->audio_fmt.bit_depth = format->bit_depth;
 457	base_cfg->audio_fmt.valid_bit_depth = format->valid_bit_depth;
 458	base_cfg->audio_fmt.ch_cfg = format->ch_cfg;
 459	base_cfg->audio_fmt.sample_type = format->sample_type;
 460
 461	dev_dbg(skl->dev, "bit_depth=%x valid_bd=%x ch_config=%x\n",
 462			format->bit_depth, format->valid_bit_depth,
 463			format->ch_cfg);
 464
 465	base_cfg->audio_fmt.channel_map = format->ch_map;
 466
 467	base_cfg->audio_fmt.interleaving = format->interleaving_style;
 468
 469	base_cfg->cpc = res->cpc;
 470	base_cfg->ibs = res->ibs;
 471	base_cfg->obs = res->obs;
 472	base_cfg->is_pages = res->is_pages;
 473}
 474
 475/*
 476 * Copies copier capabilities into copier module and updates copier module
 477 * config size.
 478 */
 479static void skl_copy_copier_caps(struct skl_module_cfg *mconfig,
 480				struct skl_cpr_cfg *cpr_mconfig)
 481{
 482	if (mconfig->formats_config.caps_size == 0)
 483		return;
 484
 485	memcpy(cpr_mconfig->gtw_cfg.config_data,
 486			mconfig->formats_config.caps,
 487			mconfig->formats_config.caps_size);
 488
 489	cpr_mconfig->gtw_cfg.config_length =
 490			(mconfig->formats_config.caps_size) / 4;
 491}
 492
 493#define SKL_NON_GATEWAY_CPR_NODE_ID 0xFFFFFFFF
 494/*
 495 * Calculate the gatewat settings required for copier module, type of
 496 * gateway and index of gateway to use
 497 */
 498static u32 skl_get_node_id(struct skl_dev *skl,
 499			struct skl_module_cfg *mconfig)
 500{
 501	union skl_connector_node_id node_id = {0};
 502	union skl_ssp_dma_node ssp_node  = {0};
 503	struct skl_pipe_params *params = mconfig->pipe->p_params;
 504
 505	switch (mconfig->dev_type) {
 506	case SKL_DEVICE_BT:
 507		node_id.node.dma_type =
 508			(SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
 509			SKL_DMA_I2S_LINK_OUTPUT_CLASS :
 510			SKL_DMA_I2S_LINK_INPUT_CLASS;
 511		node_id.node.vindex = params->host_dma_id +
 512					(mconfig->vbus_id << 3);
 513		break;
 514
 515	case SKL_DEVICE_I2S:
 516		node_id.node.dma_type =
 517			(SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
 518			SKL_DMA_I2S_LINK_OUTPUT_CLASS :
 519			SKL_DMA_I2S_LINK_INPUT_CLASS;
 520		ssp_node.dma_node.time_slot_index = mconfig->time_slot;
 521		ssp_node.dma_node.i2s_instance = mconfig->vbus_id;
 522		node_id.node.vindex = ssp_node.val;
 523		break;
 524
 525	case SKL_DEVICE_DMIC:
 526		node_id.node.dma_type = SKL_DMA_DMIC_LINK_INPUT_CLASS;
 527		node_id.node.vindex = mconfig->vbus_id +
 528					 (mconfig->time_slot);
 529		break;
 530
 531	case SKL_DEVICE_HDALINK:
 532		node_id.node.dma_type =
 533			(SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
 534			SKL_DMA_HDA_LINK_OUTPUT_CLASS :
 535			SKL_DMA_HDA_LINK_INPUT_CLASS;
 536		node_id.node.vindex = params->link_dma_id;
 537		break;
 538
 539	case SKL_DEVICE_HDAHOST:
 540		node_id.node.dma_type =
 541			(SKL_CONN_SOURCE == mconfig->hw_conn_type) ?
 542			SKL_DMA_HDA_HOST_OUTPUT_CLASS :
 543			SKL_DMA_HDA_HOST_INPUT_CLASS;
 544		node_id.node.vindex = params->host_dma_id;
 545		break;
 546
 547	default:
 548		node_id.val = 0xFFFFFFFF;
 549		break;
 550	}
 551
 552	return node_id.val;
 553}
 554
 555static void skl_setup_cpr_gateway_cfg(struct skl_dev *skl,
 556			struct skl_module_cfg *mconfig,
 557			struct skl_cpr_cfg *cpr_mconfig)
 558{
 559	u32 dma_io_buf;
 560	struct skl_module_res *res;
 561	int res_idx = mconfig->res_idx;
 562
 563	cpr_mconfig->gtw_cfg.node_id = skl_get_node_id(skl, mconfig);
 564
 565	if (cpr_mconfig->gtw_cfg.node_id == SKL_NON_GATEWAY_CPR_NODE_ID) {
 566		cpr_mconfig->cpr_feature_mask = 0;
 567		return;
 568	}
 569
 570	if (skl->nr_modules) {
 571		res = &mconfig->module->resources[mconfig->res_idx];
 572		cpr_mconfig->gtw_cfg.dma_buffer_size = res->dma_buffer_size;
 573		goto skip_buf_size_calc;
 574	} else {
 575		res = &mconfig->module->resources[res_idx];
 576	}
 577
 578	switch (mconfig->hw_conn_type) {
 579	case SKL_CONN_SOURCE:
 580		if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
 581			dma_io_buf =  res->ibs;
 582		else
 583			dma_io_buf =  res->obs;
 584		break;
 585
 586	case SKL_CONN_SINK:
 587		if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
 588			dma_io_buf =  res->obs;
 589		else
 590			dma_io_buf =  res->ibs;
 591		break;
 592
 593	default:
 594		dev_warn(skl->dev, "wrong connection type: %d\n",
 595				mconfig->hw_conn_type);
 596		return;
 597	}
 598
 599	cpr_mconfig->gtw_cfg.dma_buffer_size =
 600				mconfig->dma_buffer_size * dma_io_buf;
 601
 602	/* fallback to 2ms default value */
 603	if (!cpr_mconfig->gtw_cfg.dma_buffer_size) {
 604		if (mconfig->hw_conn_type == SKL_CONN_SOURCE)
 605			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->obs;
 606		else
 607			cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->ibs;
 608	}
 609
 610skip_buf_size_calc:
 611	cpr_mconfig->cpr_feature_mask = 0;
 612	cpr_mconfig->gtw_cfg.config_length  = 0;
 613
 614	skl_copy_copier_caps(mconfig, cpr_mconfig);
 615}
 616
 617#define DMA_CONTROL_ID 5
 618#define DMA_I2S_BLOB_SIZE 21
 619
 620int skl_dsp_set_dma_control(struct skl_dev *skl, u32 *caps,
 621				u32 caps_size, u32 node_id)
 622{
 623	struct skl_dma_control *dma_ctrl;
 624	struct skl_ipc_large_config_msg msg = {0};
 625	int err = 0;
 626
 627
 628	/*
 629	 * if blob size zero, then return
 630	 */
 631	if (caps_size == 0)
 632		return 0;
 633
 634	msg.large_param_id = DMA_CONTROL_ID;
 635	msg.param_data_size = sizeof(struct skl_dma_control) + caps_size;
 636
 637	dma_ctrl = kzalloc(msg.param_data_size, GFP_KERNEL);
 638	if (dma_ctrl == NULL)
 639		return -ENOMEM;
 640
 641	dma_ctrl->node_id = node_id;
 642
 643	/*
 644	 * NHLT blob may contain additional configs along with i2s blob.
 645	 * firmware expects only the i2s blob size as the config_length.
 646	 * So fix to i2s blob size.
 647	 * size in dwords.
 648	 */
 649	dma_ctrl->config_length = DMA_I2S_BLOB_SIZE;
 650
 651	memcpy(dma_ctrl->config_data, caps, caps_size);
 652
 653	err = skl_ipc_set_large_config(&skl->ipc, &msg, (u32 *)dma_ctrl);
 654
 655	kfree(dma_ctrl);
 656	return err;
 657}
 658EXPORT_SYMBOL_GPL(skl_dsp_set_dma_control);
 659
 660static void skl_setup_out_format(struct skl_dev *skl,
 661			struct skl_module_cfg *mconfig,
 662			struct skl_audio_data_format *out_fmt)
 663{
 664	struct skl_module *module = mconfig->module;
 665	struct skl_module_iface *fmt = &module->formats[mconfig->fmt_idx];
 666	struct skl_module_fmt *format = &fmt->outputs[0].fmt;
 667
 668	out_fmt->number_of_channels = (u8)format->channels;
 669	out_fmt->s_freq = format->s_freq;
 670	out_fmt->bit_depth = format->bit_depth;
 671	out_fmt->valid_bit_depth = format->valid_bit_depth;
 672	out_fmt->ch_cfg = format->ch_cfg;
 673
 674	out_fmt->channel_map = format->ch_map;
 675	out_fmt->interleaving = format->interleaving_style;
 676	out_fmt->sample_type = format->sample_type;
 677
 678	dev_dbg(skl->dev, "copier out format chan=%d fre=%d bitdepth=%d\n",
 679		out_fmt->number_of_channels, format->s_freq, format->bit_depth);
 680}
 681
 682/*
 683 * DSP needs SRC module for frequency conversion, SRC takes base module
 684 * configuration and the target frequency as extra parameter passed as src
 685 * config
 686 */
 687static void skl_set_src_format(struct skl_dev *skl,
 688			struct skl_module_cfg *mconfig,
 689			struct skl_src_module_cfg *src_mconfig)
 690{
 691	struct skl_module *module = mconfig->module;
 692	struct skl_module_iface *iface = &module->formats[mconfig->fmt_idx];
 693	struct skl_module_fmt *fmt = &iface->outputs[0].fmt;
 694
 695	skl_set_base_module_format(skl, mconfig,
 696		(struct skl_base_cfg *)src_mconfig);
 697
 698	src_mconfig->src_cfg = fmt->s_freq;
 699}
 700
 701/*
 702 * DSP needs updown module to do channel conversion. updown module take base
 703 * module configuration and channel configuration
 704 * It also take coefficients and now we have defaults applied here
 705 */
 706static void skl_set_updown_mixer_format(struct skl_dev *skl,
 707			struct skl_module_cfg *mconfig,
 708			struct skl_up_down_mixer_cfg *mixer_mconfig)
 709{
 710	struct skl_module *module = mconfig->module;
 711	struct skl_module_iface *iface = &module->formats[mconfig->fmt_idx];
 712	struct skl_module_fmt *fmt = &iface->outputs[0].fmt;
 713
 714	skl_set_base_module_format(skl,	mconfig,
 715		(struct skl_base_cfg *)mixer_mconfig);
 716	mixer_mconfig->out_ch_cfg = fmt->ch_cfg;
 717	mixer_mconfig->ch_map = fmt->ch_map;
 718}
 719
 720/*
 721 * 'copier' is DSP internal module which copies data from Host DMA (HDA host
 722 * dma) or link (hda link, SSP, PDM)
 723 * Here we calculate the copier module parameters, like PCM format, output
 724 * format, gateway settings
 725 * copier_module_config is sent as input buffer with INIT_INSTANCE IPC msg
 726 */
 727static void skl_set_copier_format(struct skl_dev *skl,
 728			struct skl_module_cfg *mconfig,
 729			struct skl_cpr_cfg *cpr_mconfig)
 730{
 731	struct skl_audio_data_format *out_fmt = &cpr_mconfig->out_fmt;
 732	struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)cpr_mconfig;
 733
 734	skl_set_base_module_format(skl, mconfig, base_cfg);
 735
 736	skl_setup_out_format(skl, mconfig, out_fmt);
 737	skl_setup_cpr_gateway_cfg(skl, mconfig, cpr_mconfig);
 738}
 739
 740/*
 741 * Algo module are DSP pre processing modules. Algo module take base module
 742 * configuration and params
 743 */
 744
 745static void skl_set_algo_format(struct skl_dev *skl,
 746			struct skl_module_cfg *mconfig,
 747			struct skl_algo_cfg *algo_mcfg)
 748{
 749	struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)algo_mcfg;
 750
 751	skl_set_base_module_format(skl, mconfig, base_cfg);
 752
 753	if (mconfig->formats_config.caps_size == 0)
 754		return;
 755
 756	memcpy(algo_mcfg->params,
 757			mconfig->formats_config.caps,
 758			mconfig->formats_config.caps_size);
 759
 760}
 761
 762/*
 763 * Mic select module allows selecting one or many input channels, thus
 764 * acting as a demux.
 765 *
 766 * Mic select module take base module configuration and out-format
 767 * configuration
 768 */
 769static void skl_set_base_outfmt_format(struct skl_dev *skl,
 770			struct skl_module_cfg *mconfig,
 771			struct skl_base_outfmt_cfg *base_outfmt_mcfg)
 772{
 773	struct skl_audio_data_format *out_fmt = &base_outfmt_mcfg->out_fmt;
 774	struct skl_base_cfg *base_cfg =
 775				(struct skl_base_cfg *)base_outfmt_mcfg;
 776
 777	skl_set_base_module_format(skl, mconfig, base_cfg);
 778	skl_setup_out_format(skl, mconfig, out_fmt);
 779}
 780
 781static u16 skl_get_module_param_size(struct skl_dev *skl,
 782			struct skl_module_cfg *mconfig)
 783{
 784	u16 param_size;
 785
 786	switch (mconfig->m_type) {
 787	case SKL_MODULE_TYPE_COPIER:
 788		param_size = sizeof(struct skl_cpr_cfg);
 789		param_size += mconfig->formats_config.caps_size;
 790		return param_size;
 791
 792	case SKL_MODULE_TYPE_SRCINT:
 793		return sizeof(struct skl_src_module_cfg);
 794
 795	case SKL_MODULE_TYPE_UPDWMIX:
 796		return sizeof(struct skl_up_down_mixer_cfg);
 797
 798	case SKL_MODULE_TYPE_ALGO:
 799		param_size = sizeof(struct skl_base_cfg);
 800		param_size += mconfig->formats_config.caps_size;
 801		return param_size;
 802
 803	case SKL_MODULE_TYPE_BASE_OUTFMT:
 804	case SKL_MODULE_TYPE_MIC_SELECT:
 805	case SKL_MODULE_TYPE_KPB:
 806		return sizeof(struct skl_base_outfmt_cfg);
 807
 808	default:
 809		/*
 810		 * return only base cfg when no specific module type is
 811		 * specified
 812		 */
 813		return sizeof(struct skl_base_cfg);
 814	}
 815
 816	return 0;
 817}
 818
 819/*
 820 * DSP firmware supports various modules like copier, SRC, updown etc.
 821 * These modules required various parameters to be calculated and sent for
 822 * the module initialization to DSP. By default a generic module needs only
 823 * base module format configuration
 824 */
 825
 826static int skl_set_module_format(struct skl_dev *skl,
 827			struct skl_module_cfg *module_config,
 828			u16 *module_config_size,
 829			void **param_data)
 830{
 831	u16 param_size;
 832
 833	param_size  = skl_get_module_param_size(skl, module_config);
 834
 835	*param_data = kzalloc(param_size, GFP_KERNEL);
 836	if (NULL == *param_data)
 837		return -ENOMEM;
 838
 839	*module_config_size = param_size;
 840
 841	switch (module_config->m_type) {
 842	case SKL_MODULE_TYPE_COPIER:
 843		skl_set_copier_format(skl, module_config, *param_data);
 844		break;
 845
 846	case SKL_MODULE_TYPE_SRCINT:
 847		skl_set_src_format(skl, module_config, *param_data);
 848		break;
 849
 850	case SKL_MODULE_TYPE_UPDWMIX:
 851		skl_set_updown_mixer_format(skl, module_config, *param_data);
 852		break;
 853
 854	case SKL_MODULE_TYPE_ALGO:
 855		skl_set_algo_format(skl, module_config, *param_data);
 856		break;
 857
 858	case SKL_MODULE_TYPE_BASE_OUTFMT:
 859	case SKL_MODULE_TYPE_MIC_SELECT:
 860	case SKL_MODULE_TYPE_KPB:
 861		skl_set_base_outfmt_format(skl, module_config, *param_data);
 862		break;
 863
 864	default:
 865		skl_set_base_module_format(skl, module_config, *param_data);
 866		break;
 867
 868	}
 869
 870	dev_dbg(skl->dev, "Module type=%d id=%d config size: %d bytes\n",
 871			module_config->m_type, module_config->id.module_id,
 872			param_size);
 873	print_hex_dump_debug("Module params:", DUMP_PREFIX_OFFSET, 8, 4,
 874			*param_data, param_size, false);
 875	return 0;
 876}
 877
 878static int skl_get_queue_index(struct skl_module_pin *mpin,
 879				struct skl_module_inst_id id, int max)
 880{
 881	int i;
 882
 883	for (i = 0; i < max; i++)  {
 884		if (mpin[i].id.module_id == id.module_id &&
 885			mpin[i].id.instance_id == id.instance_id)
 886			return i;
 887	}
 888
 889	return -EINVAL;
 890}
 891
 892/*
 893 * Allocates queue for each module.
 894 * if dynamic, the pin_index is allocated 0 to max_pin.
 895 * In static, the pin_index is fixed based on module_id and instance id
 896 */
 897static int skl_alloc_queue(struct skl_module_pin *mpin,
 898			struct skl_module_cfg *tgt_cfg, int max)
 899{
 900	int i;
 901	struct skl_module_inst_id id = tgt_cfg->id;
 902	/*
 903	 * if pin in dynamic, find first free pin
 904	 * otherwise find match module and instance id pin as topology will
 905	 * ensure a unique pin is assigned to this so no need to
 906	 * allocate/free
 907	 */
 908	for (i = 0; i < max; i++)  {
 909		if (mpin[i].is_dynamic) {
 910			if (!mpin[i].in_use &&
 911				mpin[i].pin_state == SKL_PIN_UNBIND) {
 912
 913				mpin[i].in_use = true;
 914				mpin[i].id.module_id = id.module_id;
 915				mpin[i].id.instance_id = id.instance_id;
 916				mpin[i].id.pvt_id = id.pvt_id;
 917				mpin[i].tgt_mcfg = tgt_cfg;
 918				return i;
 919			}
 920		} else {
 921			if (mpin[i].id.module_id == id.module_id &&
 922				mpin[i].id.instance_id == id.instance_id &&
 923				mpin[i].pin_state == SKL_PIN_UNBIND) {
 924
 925				mpin[i].tgt_mcfg = tgt_cfg;
 926				return i;
 927			}
 928		}
 929	}
 930
 931	return -EINVAL;
 932}
 933
 934static void skl_free_queue(struct skl_module_pin *mpin, int q_index)
 935{
 936	if (mpin[q_index].is_dynamic) {
 937		mpin[q_index].in_use = false;
 938		mpin[q_index].id.module_id = 0;
 939		mpin[q_index].id.instance_id = 0;
 940		mpin[q_index].id.pvt_id = 0;
 941	}
 942	mpin[q_index].pin_state = SKL_PIN_UNBIND;
 943	mpin[q_index].tgt_mcfg = NULL;
 944}
 945
 946/* Module state will be set to unint, if all the out pin state is UNBIND */
 947
 948static void skl_clear_module_state(struct skl_module_pin *mpin, int max,
 949						struct skl_module_cfg *mcfg)
 950{
 951	int i;
 952	bool found = false;
 953
 954	for (i = 0; i < max; i++)  {
 955		if (mpin[i].pin_state == SKL_PIN_UNBIND)
 956			continue;
 957		found = true;
 958		break;
 959	}
 960
 961	if (!found)
 962		mcfg->m_state = SKL_MODULE_INIT_DONE;
 963	return;
 964}
 965
 966/*
 967 * A module needs to be instanataited in DSP. A mdoule is present in a
 968 * collection of module referred as a PIPE.
 969 * We first calculate the module format, based on module type and then
 970 * invoke the DSP by sending IPC INIT_INSTANCE using ipc helper
 971 */
 972int skl_init_module(struct skl_dev *skl,
 973			struct skl_module_cfg *mconfig)
 974{
 975	u16 module_config_size = 0;
 976	void *param_data = NULL;
 977	int ret;
 978	struct skl_ipc_init_instance_msg msg;
 979
 980	dev_dbg(skl->dev, "%s: module_id = %d instance=%d\n", __func__,
 981		 mconfig->id.module_id, mconfig->id.pvt_id);
 982
 983	if (mconfig->pipe->state != SKL_PIPE_CREATED) {
 984		dev_err(skl->dev, "Pipe not created state= %d pipe_id= %d\n",
 985				 mconfig->pipe->state, mconfig->pipe->ppl_id);
 986		return -EIO;
 987	}
 988
 989	ret = skl_set_module_format(skl, mconfig,
 990			&module_config_size, &param_data);
 991	if (ret < 0) {
 992		dev_err(skl->dev, "Failed to set module format ret=%d\n", ret);
 993		return ret;
 994	}
 995
 996	msg.module_id = mconfig->id.module_id;
 997	msg.instance_id = mconfig->id.pvt_id;
 998	msg.ppl_instance_id = mconfig->pipe->ppl_id;
 999	msg.param_data_size = module_config_size;
1000	msg.core_id = mconfig->core_id;
1001	msg.domain = mconfig->domain;
1002
1003	ret = skl_ipc_init_instance(&skl->ipc, &msg, param_data);
1004	if (ret < 0) {
1005		dev_err(skl->dev, "Failed to init instance ret=%d\n", ret);
1006		kfree(param_data);
1007		return ret;
1008	}
1009	mconfig->m_state = SKL_MODULE_INIT_DONE;
1010	kfree(param_data);
1011	return ret;
1012}
1013
1014static void skl_dump_bind_info(struct skl_dev *skl, struct skl_module_cfg
1015	*src_module, struct skl_module_cfg *dst_module)
1016{
1017	dev_dbg(skl->dev, "%s: src module_id = %d  src_instance=%d\n",
1018		__func__, src_module->id.module_id, src_module->id.pvt_id);
1019	dev_dbg(skl->dev, "%s: dst_module=%d dst_instance=%d\n", __func__,
1020		 dst_module->id.module_id, dst_module->id.pvt_id);
1021
1022	dev_dbg(skl->dev, "src_module state = %d dst module state = %d\n",
1023		src_module->m_state, dst_module->m_state);
1024}
1025
1026/*
1027 * On module freeup, we need to unbind the module with modules
1028 * it is already bind.
1029 * Find the pin allocated and unbind then using bind_unbind IPC
1030 */
1031int skl_unbind_modules(struct skl_dev *skl,
1032			struct skl_module_cfg *src_mcfg,
1033			struct skl_module_cfg *dst_mcfg)
1034{
1035	int ret;
1036	struct skl_ipc_bind_unbind_msg msg;
1037	struct skl_module_inst_id src_id = src_mcfg->id;
1038	struct skl_module_inst_id dst_id = dst_mcfg->id;
1039	int in_max = dst_mcfg->module->max_input_pins;
1040	int out_max = src_mcfg->module->max_output_pins;
1041	int src_index, dst_index, src_pin_state, dst_pin_state;
1042
1043	skl_dump_bind_info(skl, src_mcfg, dst_mcfg);
1044
1045	/* get src queue index */
1046	src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max);
1047	if (src_index < 0)
1048		return 0;
1049
1050	msg.src_queue = src_index;
1051
1052	/* get dst queue index */
1053	dst_index  = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max);
1054	if (dst_index < 0)
1055		return 0;
1056
1057	msg.dst_queue = dst_index;
1058
1059	src_pin_state = src_mcfg->m_out_pin[src_index].pin_state;
1060	dst_pin_state = dst_mcfg->m_in_pin[dst_index].pin_state;
1061
1062	if (src_pin_state != SKL_PIN_BIND_DONE ||
1063		dst_pin_state != SKL_PIN_BIND_DONE)
1064		return 0;
1065
1066	msg.module_id = src_mcfg->id.module_id;
1067	msg.instance_id = src_mcfg->id.pvt_id;
1068	msg.dst_module_id = dst_mcfg->id.module_id;
1069	msg.dst_instance_id = dst_mcfg->id.pvt_id;
1070	msg.bind = false;
1071
1072	ret = skl_ipc_bind_unbind(&skl->ipc, &msg);
1073	if (!ret) {
1074		/* free queue only if unbind is success */
1075		skl_free_queue(src_mcfg->m_out_pin, src_index);
1076		skl_free_queue(dst_mcfg->m_in_pin, dst_index);
1077
1078		/*
1079		 * check only if src module bind state, bind is
1080		 * always from src -> sink
1081		 */
1082		skl_clear_module_state(src_mcfg->m_out_pin, out_max, src_mcfg);
1083	}
1084
1085	return ret;
1086}
1087
1088static void fill_pin_params(struct skl_audio_data_format *pin_fmt,
1089				struct skl_module_fmt *format)
1090{
1091	pin_fmt->number_of_channels = format->channels;
1092	pin_fmt->s_freq = format->s_freq;
1093	pin_fmt->bit_depth = format->bit_depth;
1094	pin_fmt->valid_bit_depth = format->valid_bit_depth;
1095	pin_fmt->ch_cfg = format->ch_cfg;
1096	pin_fmt->sample_type = format->sample_type;
1097	pin_fmt->channel_map = format->ch_map;
1098	pin_fmt->interleaving = format->interleaving_style;
1099}
1100
1101#define CPR_SINK_FMT_PARAM_ID 2
1102
1103/*
1104 * Once a module is instantiated it need to be 'bind' with other modules in
1105 * the pipeline. For binding we need to find the module pins which are bind
1106 * together
1107 * This function finds the pins and then sends bund_unbind IPC message to
1108 * DSP using IPC helper
1109 */
1110int skl_bind_modules(struct skl_dev *skl,
1111			struct skl_module_cfg *src_mcfg,
1112			struct skl_module_cfg *dst_mcfg)
1113{
1114	int ret = 0;
1115	struct skl_ipc_bind_unbind_msg msg;
1116	int in_max = dst_mcfg->module->max_input_pins;
1117	int out_max = src_mcfg->module->max_output_pins;
1118	int src_index, dst_index;
1119	struct skl_module_fmt *format;
1120	struct skl_cpr_pin_fmt pin_fmt;
1121	struct skl_module *module;
1122	struct skl_module_iface *fmt;
1123
1124	skl_dump_bind_info(skl, src_mcfg, dst_mcfg);
1125
1126	if (src_mcfg->m_state < SKL_MODULE_INIT_DONE ||
1127		dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
1128		return 0;
1129
1130	src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_mcfg, out_max);
1131	if (src_index < 0)
1132		return -EINVAL;
1133
1134	msg.src_queue = src_index;
1135	dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_mcfg, in_max);
1136	if (dst_index < 0) {
1137		skl_free_queue(src_mcfg->m_out_pin, src_index);
1138		return -EINVAL;
1139	}
1140
1141	/*
1142	 * Copier module requires the separate large_config_set_ipc to
1143	 * configure the pins other than 0
1144	 */
1145	if (src_mcfg->m_type == SKL_MODULE_TYPE_COPIER && src_index > 0) {
1146		pin_fmt.sink_id = src_index;
1147		module = src_mcfg->module;
1148		fmt = &module->formats[src_mcfg->fmt_idx];
1149
1150		/* Input fmt is same as that of src module input cfg */
1151		format = &fmt->inputs[0].fmt;
1152		fill_pin_params(&(pin_fmt.src_fmt), format);
1153
1154		format = &fmt->outputs[src_index].fmt;
1155		fill_pin_params(&(pin_fmt.dst_fmt), format);
1156		ret = skl_set_module_params(skl, (void *)&pin_fmt,
1157					sizeof(struct skl_cpr_pin_fmt),
1158					CPR_SINK_FMT_PARAM_ID, src_mcfg);
1159
1160		if (ret < 0)
1161			goto out;
1162	}
1163
1164	msg.dst_queue = dst_index;
1165
1166	dev_dbg(skl->dev, "src queue = %d dst queue =%d\n",
1167			 msg.src_queue, msg.dst_queue);
1168
1169	msg.module_id = src_mcfg->id.module_id;
1170	msg.instance_id = src_mcfg->id.pvt_id;
1171	msg.dst_module_id = dst_mcfg->id.module_id;
1172	msg.dst_instance_id = dst_mcfg->id.pvt_id;
1173	msg.bind = true;
1174
1175	ret = skl_ipc_bind_unbind(&skl->ipc, &msg);
1176
1177	if (!ret) {
1178		src_mcfg->m_state = SKL_MODULE_BIND_DONE;
1179		src_mcfg->m_out_pin[src_index].pin_state = SKL_PIN_BIND_DONE;
1180		dst_mcfg->m_in_pin[dst_index].pin_state = SKL_PIN_BIND_DONE;
1181		return ret;
1182	}
1183out:
1184	/* error case , if IPC fails, clear the queue index */
1185	skl_free_queue(src_mcfg->m_out_pin, src_index);
1186	skl_free_queue(dst_mcfg->m_in_pin, dst_index);
1187
1188	return ret;
1189}
1190
1191static int skl_set_pipe_state(struct skl_dev *skl, struct skl_pipe *pipe,
1192	enum skl_ipc_pipeline_state state)
1193{
1194	dev_dbg(skl->dev, "%s: pipe_state = %d\n", __func__, state);
1195
1196	return skl_ipc_set_pipeline_state(&skl->ipc, pipe->ppl_id, state);
1197}
1198
1199/*
1200 * A pipeline is a collection of modules. Before a module in instantiated a
1201 * pipeline needs to be created for it.
1202 * This function creates pipeline, by sending create pipeline IPC messages
1203 * to FW
1204 */
1205int skl_create_pipeline(struct skl_dev *skl, struct skl_pipe *pipe)
1206{
1207	int ret;
1208
1209	dev_dbg(skl->dev, "%s: pipe_id = %d\n", __func__, pipe->ppl_id);
1210
1211	ret = skl_ipc_create_pipeline(&skl->ipc, pipe->memory_pages,
1212				pipe->pipe_priority, pipe->ppl_id,
1213				pipe->lp_mode);
1214	if (ret < 0) {
1215		dev_err(skl->dev, "Failed to create pipeline\n");
1216		return ret;
1217	}
1218
1219	pipe->state = SKL_PIPE_CREATED;
1220
1221	return 0;
1222}
1223
1224/*
1225 * A pipeline needs to be deleted on cleanup. If a pipeline is running,
1226 * then pause it first. Before actual deletion, pipeline should enter
1227 * reset state. Finish the procedure by sending delete pipeline IPC.
1228 * DSP will stop the DMA engines and release resources
1229 */
1230int skl_delete_pipe(struct skl_dev *skl, struct skl_pipe *pipe)
1231{
1232	int ret;
1233
1234	dev_dbg(skl->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
1235
1236	/* If pipe was not created in FW, do not try to delete it */
1237	if (pipe->state < SKL_PIPE_CREATED)
1238		return 0;
1239
1240	/* If pipe is started, do stop the pipe in FW. */
1241	if (pipe->state >= SKL_PIPE_STARTED) {
1242		ret = skl_set_pipe_state(skl, pipe, PPL_PAUSED);
1243		if (ret < 0) {
1244			dev_err(skl->dev, "Failed to stop pipeline\n");
1245			return ret;
1246		}
1247
1248		pipe->state = SKL_PIPE_PAUSED;
1249	}
1250
1251	/* reset pipe state before deletion */
1252	ret = skl_set_pipe_state(skl, pipe, PPL_RESET);
1253	if (ret < 0) {
1254		dev_err(skl->dev, "Failed to reset pipe ret=%d\n", ret);
1255		return ret;
1256	}
1257
1258	pipe->state = SKL_PIPE_RESET;
1259
1260	ret = skl_ipc_delete_pipeline(&skl->ipc, pipe->ppl_id);
1261	if (ret < 0) {
1262		dev_err(skl->dev, "Failed to delete pipeline\n");
1263		return ret;
1264	}
1265
1266	pipe->state = SKL_PIPE_INVALID;
1267
1268	return ret;
1269}
1270
1271/*
1272 * A pipeline is also a scheduling entity in DSP which can be run, stopped
1273 * For processing data the pipe need to be run by sending IPC set pipe state
1274 * to DSP
1275 */
1276int skl_run_pipe(struct skl_dev *skl, struct skl_pipe *pipe)
1277{
1278	int ret;
1279
1280	dev_dbg(skl->dev, "%s: pipe = %d\n", __func__, pipe->ppl_id);
1281
1282	/* If pipe was not created in FW, do not try to pause or delete */
1283	if (pipe->state < SKL_PIPE_CREATED)
1284		return 0;
1285
1286	/* Pipe has to be paused before it is started */
1287	ret = skl_set_pipe_state(skl, pipe, PPL_PAUSED);
1288	if (ret < 0) {
1289		dev_err(skl->dev, "Failed to pause pipe\n");
1290		return ret;
1291	}
1292
1293	pipe->state = SKL_PIPE_PAUSED;
1294
1295	ret = skl_set_pipe_state(skl, pipe, PPL_RUNNING);
1296	if (ret < 0) {
1297		dev_err(skl->dev, "Failed to start pipe\n");
1298		return ret;
1299	}
1300
1301	pipe->state = SKL_PIPE_STARTED;
1302
1303	return 0;
1304}
1305
1306/*
1307 * Stop the pipeline by sending set pipe state IPC
1308 * DSP doesnt implement stop so we always send pause message
1309 */
1310int skl_stop_pipe(struct skl_dev *skl, struct skl_pipe *pipe)
1311{
1312	int ret;
1313
1314	dev_dbg(skl->dev, "In %s pipe=%d\n", __func__, pipe->ppl_id);
1315
1316	/* If pipe was not created in FW, do not try to pause or delete */
1317	if (pipe->state < SKL_PIPE_PAUSED)
1318		return 0;
1319
1320	ret = skl_set_pipe_state(skl, pipe, PPL_PAUSED);
1321	if (ret < 0) {
1322		dev_dbg(skl->dev, "Failed to stop pipe\n");
1323		return ret;
1324	}
1325
1326	pipe->state = SKL_PIPE_PAUSED;
1327
1328	return 0;
1329}
1330
1331/*
1332 * Reset the pipeline by sending set pipe state IPC this will reset the DMA
1333 * from the DSP side
1334 */
1335int skl_reset_pipe(struct skl_dev *skl, struct skl_pipe *pipe)
1336{
1337	int ret;
1338
1339	/* If pipe was not created in FW, do not try to pause or delete */
1340	if (pipe->state < SKL_PIPE_PAUSED)
1341		return 0;
1342
1343	ret = skl_set_pipe_state(skl, pipe, PPL_RESET);
1344	if (ret < 0) {
1345		dev_dbg(skl->dev, "Failed to reset pipe ret=%d\n", ret);
1346		return ret;
1347	}
1348
1349	pipe->state = SKL_PIPE_RESET;
1350
1351	return 0;
1352}
1353
1354/* Algo parameter set helper function */
1355int skl_set_module_params(struct skl_dev *skl, u32 *params, int size,
1356				u32 param_id, struct skl_module_cfg *mcfg)
1357{
1358	struct skl_ipc_large_config_msg msg;
1359
1360	msg.module_id = mcfg->id.module_id;
1361	msg.instance_id = mcfg->id.pvt_id;
1362	msg.param_data_size = size;
1363	msg.large_param_id = param_id;
1364
1365	return skl_ipc_set_large_config(&skl->ipc, &msg, params);
1366}
1367
1368int skl_get_module_params(struct skl_dev *skl, u32 *params, int size,
1369			  u32 param_id, struct skl_module_cfg *mcfg)
1370{
1371	struct skl_ipc_large_config_msg msg;
1372	size_t bytes = size;
1373
1374	msg.module_id = mcfg->id.module_id;
1375	msg.instance_id = mcfg->id.pvt_id;
1376	msg.param_data_size = size;
1377	msg.large_param_id = param_id;
1378
1379	return skl_ipc_get_large_config(&skl->ipc, &msg, &params, &bytes);
1380}