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path: root/sound/soc/intel/skylake/skl-topology.c
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/*
 *  skl-topology.c - Implements Platform component ALSA controls/widget
 *  handlers.
 *
 *  Copyright (C) 2014-2015 Intel Corp
 *  Author: Jeeja KP <jeeja.kp@intel.com>
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include <linux/slab.h>
#include <linux/types.h>
#include <linux/firmware.h>
#include <sound/soc.h>
#include <sound/soc-topology.h>
#include "skl-sst-dsp.h"
#include "skl-sst-ipc.h"
#include "skl-topology.h"
#include "skl.h"
#include "skl-tplg-interface.h"
#include "../common/sst-dsp.h"
#include "../common/sst-dsp-priv.h"

#define SKL_CH_FIXUP_MASK		(1 << 0)
#define SKL_RATE_FIXUP_MASK		(1 << 1)
#define SKL_FMT_FIXUP_MASK		(1 << 2)

/*
 * SKL DSP driver modelling uses only few DAPM widgets so for rest we will
 * ignore. This helpers checks if the SKL driver handles this widget type
 */
static int is_skl_dsp_widget_type(struct snd_soc_dapm_widget *w)
{
	switch (w->id) {
	case snd_soc_dapm_dai_link:
	case snd_soc_dapm_dai_in:
	case snd_soc_dapm_aif_in:
	case snd_soc_dapm_aif_out:
	case snd_soc_dapm_dai_out:
	case snd_soc_dapm_switch:
		return false;
	default:
		return true;
	}
}

/*
 * Each pipelines needs memory to be allocated. Check if we have free memory
 * from available pool.
 */
static bool skl_is_pipe_mem_avail(struct skl *skl,
				struct skl_module_cfg *mconfig)
{
	struct skl_sst *ctx = skl->skl_sst;

	if (skl->resource.mem + mconfig->pipe->memory_pages >
				skl->resource.max_mem) {
		dev_err(ctx->dev,
				"%s: module_id %d instance %d\n", __func__,
				mconfig->id.module_id,
				mconfig->id.instance_id);
		dev_err(ctx->dev,
				"exceeds ppl memory available %d mem %d\n",
				skl->resource.max_mem, skl->resource.mem);
		return false;
	} else {
		return true;
	}
}

/*
 * Add the mem to the mem pool. This is freed when pipe is deleted.
 * Note: DSP does actual memory management we only keep track for complete
 * pool
 */
static void skl_tplg_alloc_pipe_mem(struct skl *skl,
				struct skl_module_cfg *mconfig)
{
	skl->resource.mem += mconfig->pipe->memory_pages;
}

/*
 * Pipeline needs needs DSP CPU resources for computation, this is
 * quantified in MCPS (Million Clocks Per Second) required for module/pipe
 *
 * Each pipelines needs mcps to be allocated. Check if we have mcps for this
 * pipe.
 */

static bool skl_is_pipe_mcps_avail(struct skl *skl,
				struct skl_module_cfg *mconfig)
{
	struct skl_sst *ctx = skl->skl_sst;

	if (skl->resource.mcps + mconfig->mcps > skl->resource.max_mcps) {
		dev_err(ctx->dev,
			"%s: module_id %d instance %d\n", __func__,
			mconfig->id.module_id, mconfig->id.instance_id);
		dev_err(ctx->dev,
			"exceeds ppl mcps available %d > mem %d\n",
			skl->resource.max_mcps, skl->resource.mcps);
		return false;
	} else {
		return true;
	}
}

static void skl_tplg_alloc_pipe_mcps(struct skl *skl,
				struct skl_module_cfg *mconfig)
{
	skl->resource.mcps += mconfig->mcps;
}

/*
 * Free the mcps when tearing down
 */
static void
skl_tplg_free_pipe_mcps(struct skl *skl, struct skl_module_cfg *mconfig)
{
	skl->resource.mcps -= mconfig->mcps;
}

/*
 * Free the memory when tearing down
 */
static void
skl_tplg_free_pipe_mem(struct skl *skl, struct skl_module_cfg *mconfig)
{
	skl->resource.mem -= mconfig->pipe->memory_pages;
}


static void skl_dump_mconfig(struct skl_sst *ctx,
					struct skl_module_cfg *mcfg)
{
	dev_dbg(ctx->dev, "Dumping config\n");
	dev_dbg(ctx->dev, "Input Format:\n");
	dev_dbg(ctx->dev, "channels = %d\n", mcfg->in_fmt[0].channels);
	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt[0].s_freq);
	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt[0].ch_cfg);
	dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->in_fmt[0].valid_bit_depth);
	dev_dbg(ctx->dev, "Output Format:\n");
	dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt[0].channels);
	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt[0].s_freq);
	dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->out_fmt[0].valid_bit_depth);
	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt[0].ch_cfg);
}

static void skl_tplg_update_chmap(struct skl_module_fmt *fmt, int chs)
{
	int slot_map = 0xFFFFFFFF;
	int start_slot = 0;
	int i;

	for (i = 0; i < chs; i++) {
		/*
		 * For 2 channels with starting slot as 0, slot map will
		 * look like 0xFFFFFF10.
		 */
		slot_map &= (~(0xF << (4 * i)) | (start_slot << (4 * i)));
		start_slot++;
	}
	fmt->ch_map = slot_map;
}

static void skl_tplg_update_params(struct skl_module_fmt *fmt,
			struct skl_pipe_params *params, int fixup)
{
	if (fixup & SKL_RATE_FIXUP_MASK)
		fmt->s_freq = params->s_freq;
	if (fixup & SKL_CH_FIXUP_MASK) {
		fmt->channels = params->ch;
		skl_tplg_update_chmap(fmt, fmt->channels);
	}
	if (fixup & SKL_FMT_FIXUP_MASK) {
		fmt->valid_bit_depth = skl_get_bit_depth(params->s_fmt);

		/*
		 * 16 bit is 16 bit container whereas 24 bit is in 32 bit
		 * container so update bit depth accordingly
		 */
		switch (fmt->valid_bit_depth) {
		case SKL_DEPTH_16BIT:
			fmt->bit_depth = fmt->valid_bit_depth;
			break;

		default:
			fmt->bit_depth = SKL_DEPTH_32BIT;
			break;
		}
	}

}

/*
 * A pipeline may have modules which impact the pcm parameters, like SRC,
 * channel converter, format converter.
 * We need to calculate the output params by applying the 'fixup'
 * Topology will tell driver which type of fixup is to be applied by
 * supplying the fixup mask, so based on that we calculate the output
 *
 * Now In FE the pcm hw_params is source/target format. Same is applicable
 * for BE with its hw_params invoked.
 * here based on FE, BE pipeline and direction we calculate the input and
 * outfix and then apply that for a module
 */
static void skl_tplg_update_params_fixup(struct skl_module_cfg *m_cfg,
		struct skl_pipe_params *params, bool is_fe)
{
	int in_fixup, out_fixup;
	struct skl_module_fmt *in_fmt, *out_fmt;

	/* Fixups will be applied to pin 0 only */
	in_fmt = &m_cfg->in_fmt[0];
	out_fmt = &m_cfg->out_fmt[0];

	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		if (is_fe) {
			in_fixup = m_cfg->params_fixup;
			out_fixup = (~m_cfg->converter) &
					m_cfg->params_fixup;
		} else {
			out_fixup = m_cfg->params_fixup;
			in_fixup = (~m_cfg->converter) &
					m_cfg->params_fixup;
		}
	} else {
		if (is_fe) {
			out_fixup = m_cfg->params_fixup;
			in_fixup = (~m_cfg->converter) &
					m_cfg->params_fixup;
		} else {
			in_fixup = m_cfg->params_fixup;
			out_fixup = (~m_cfg->converter) &
					m_cfg->params_fixup;
		}
	}

	skl_tplg_update_params(in_fmt, params, in_fixup);
	skl_tplg_update_params(out_fmt, params, out_fixup);
}

/*
 * A module needs input and output buffers, which are dependent upon pcm
 * params, so once we have calculate params, we need buffer calculation as
 * well.
 */
static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
				struct skl_module_cfg *mcfg)
{
	int multiplier = 1;
	struct skl_module_fmt *in_fmt, *out_fmt;
	int in_rate, out_rate;


	/* Since fixups is applied to pin 0 only, ibs, obs needs
	 * change for pin 0 only
	 */
	in_fmt = &mcfg->in_fmt[0];
	out_fmt = &mcfg->out_fmt[0];

	if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
		multiplier = 5;

	if (in_fmt->s_freq % 1000)
		in_rate = (in_fmt->s_freq / 1000) + 1;
	else
		in_rate = (in_fmt->s_freq / 1000);

	mcfg->ibs = in_rate * (mcfg->in_fmt->channels) *
			(mcfg->in_fmt->bit_depth >> 3) *
			multiplier;

	if (mcfg->out_fmt->s_freq % 1000)
		out_rate = (mcfg->out_fmt->s_freq / 1000) + 1;
	else
		out_rate = (mcfg->out_fmt->s_freq / 1000);

	mcfg->obs = out_rate * (mcfg->out_fmt->channels) *
			(mcfg->out_fmt->bit_depth >> 3) *
			multiplier;
}

static int skl_tplg_update_be_blob(struct snd_soc_dapm_widget *w,
						struct skl_sst *ctx)
{
	struct skl_module_cfg *m_cfg = w->priv;
	int link_type, dir;
	u32 ch, s_freq, s_fmt;
	struct nhlt_specific_cfg *cfg;
	struct skl *skl = get_skl_ctx(ctx->dev);

	/* check if we already have blob */
	if (m_cfg->formats_config.caps_size > 0)
		return 0;

	dev_dbg(ctx->dev, "Applying default cfg blob\n");
	switch (m_cfg->dev_type) {
	case SKL_DEVICE_DMIC:
		link_type = NHLT_LINK_DMIC;
		dir = SNDRV_PCM_STREAM_CAPTURE;
		s_freq = m_cfg->in_fmt[0].s_freq;
		s_fmt = m_cfg->in_fmt[0].bit_depth;
		ch = m_cfg->in_fmt[0].channels;
		break;

	case SKL_DEVICE_I2S:
		link_type = NHLT_LINK_SSP;
		if (m_cfg->hw_conn_type == SKL_CONN_SOURCE) {
			dir = SNDRV_PCM_STREAM_PLAYBACK;
			s_freq = m_cfg->out_fmt[0].s_freq;
			s_fmt = m_cfg->out_fmt[0].bit_depth;
			ch = m_cfg->out_fmt[0].channels;
		} else {
			dir = SNDRV_PCM_STREAM_CAPTURE;
			s_freq = m_cfg->in_fmt[0].s_freq;
			s_fmt = m_cfg->in_fmt[0].bit_depth;
			ch = m_cfg->in_fmt[0].channels;
		}
		break;

	default:
		return -EINVAL;
	}

	/* update the blob based on virtual bus_id and default params */
	cfg = skl_get_ep_blob(skl, m_cfg->vbus_id, link_type,
					s_fmt, ch, s_freq, dir);
	if (cfg) {
		m_cfg->formats_config.caps_size = cfg->size;
		m_cfg->formats_config.caps = (u32 *) &cfg->caps;
	} else {
		dev_err(ctx->dev, "Blob NULL for id %x type %d dirn %d\n",
					m_cfg->vbus_id, link_type, dir);
		dev_err(ctx->dev, "PCM: ch %d, freq %d, fmt %d\n",
					ch, s_freq, s_fmt);
		return -EIO;
	}

	return 0;
}

static void skl_tplg_update_module_params(struct snd_soc_dapm_widget *w,
							struct skl_sst *ctx)
{
	struct skl_module_cfg *m_cfg = w->priv;
	struct skl_pipe_params *params = m_cfg->pipe->p_params;
	int p_conn_type = m_cfg->pipe->conn_type;
	bool is_fe;

	if (!m_cfg->params_fixup)
		return;

	dev_dbg(ctx->dev, "Mconfig for widget=%s BEFORE updation\n",
				w->name);

	skl_dump_mconfig(ctx, m_cfg);

	if (p_conn_type == SKL_PIPE_CONN_TYPE_FE)
		is_fe = true;
	else
		is_fe = false;

	skl_tplg_update_params_fixup(m_cfg, params, is_fe);
	skl_tplg_update_buffer_size(ctx, m_cfg);

	dev_dbg(ctx->dev, "Mconfig for widget=%s AFTER updation\n",
				w->name);

	skl_dump_mconfig(ctx, m_cfg);
}

/*
 * some modules can have multiple params set from user control and
 * need to be set after module is initialized. If set_param flag is
 * set module params will be done after module is initialised.
 */
static int skl_tplg_set_module_params(struct snd_soc_dapm_widget *w,
						struct skl_sst *ctx)
{
	int i, ret;
	struct skl_module_cfg *mconfig = w->priv;
	const struct snd_kcontrol_new *k;
	struct soc_bytes_ext *sb;
	struct skl_algo_data *bc;
	struct skl_specific_cfg *sp_cfg;

	if (mconfig->formats_config.caps_size > 0 &&
		mconfig->formats_config.set_params == SKL_PARAM_SET) {
		sp_cfg = &mconfig->formats_config;
		ret = skl_set_module_params(ctx, sp_cfg->caps,
					sp_cfg->caps_size,
					sp_cfg->param_id, mconfig);
		if (ret < 0)
			return ret;
	}

	for (i = 0; i < w->num_kcontrols; i++) {
		k = &w->kcontrol_news[i];
		if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
			sb = (void *) k->private_value;
			bc = (struct skl_algo_data *)sb->dobj.private;

			if (bc->set_params == SKL_PARAM_SET) {
				ret = skl_set_module_params(ctx,
						(u32 *)bc->params, bc->size,
						bc->param_id, mconfig);
				if (ret < 0)
					return ret;
			}
		}
	}

	return 0;
}

/*
 * some module param can set from user control and this is required as
 * when module is initailzed. if module param is required in init it is
 * identifed by set_param flag. if set_param flag is not set, then this
 * parameter needs to set as part of module init.
 */
static int skl_tplg_set_module_init_data(struct snd_soc_dapm_widget *w)
{
	const struct snd_kcontrol_new *k;
	struct soc_bytes_ext *sb;
	struct skl_algo_data *bc;
	struct skl_module_cfg *mconfig = w->priv;
	int i;

	for (i = 0; i < w->num_kcontrols; i++) {
		k = &w->kcontrol_news[i];
		if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
			sb = (struct soc_bytes_ext *)k->private_value;
			bc = (struct skl_algo_data *)sb->dobj.private;

			if (bc->set_params != SKL_PARAM_INIT)
				continue;

			mconfig->formats_config.caps = (u32 *)&bc->params;
			mconfig->formats_config.caps_size = bc->size;

			break;
		}
	}

	return 0;
}

/*
 * Inside a pipe instance, we can have various modules. These modules need
 * to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by
 * skl_init_module() routine, so invoke that for all modules in a pipeline
 */
static int
skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
{
	struct skl_pipe_module *w_module;
	struct snd_soc_dapm_widget *w;
	struct skl_module_cfg *mconfig;
	struct skl_sst *ctx = skl->skl_sst;
	int ret = 0;

	list_for_each_entry(w_module, &pipe->w_list, node) {
		w = w_module->w;
		mconfig = w->priv;

		/* check resource available */
		if (!skl_is_pipe_mcps_avail(skl, mconfig))
			return -ENOMEM;

		if (mconfig->is_loadable && ctx->dsp->fw_ops.load_mod) {
			ret = ctx->dsp->fw_ops.load_mod(ctx->dsp,
				mconfig->id.module_id, mconfig->guid);
			if (ret < 0)
				return ret;

			mconfig->m_state = SKL_MODULE_LOADED;
		}

		/* update blob if blob is null for be with default value */
		skl_tplg_update_be_blob(w, ctx);

		/*
		 * apply fix/conversion to module params based on
		 * FE/BE params
		 */
		skl_tplg_update_module_params(w, ctx);

		skl_tplg_set_module_init_data(w);
		ret = skl_init_module(ctx, mconfig);
		if (ret < 0)
			return ret;

		skl_tplg_alloc_pipe_mcps(skl, mconfig);
		ret = skl_tplg_set_module_params(w, ctx);
		if (ret < 0)
			return ret;
	}

	return 0;
}

static int skl_tplg_unload_pipe_modules(struct skl_sst *ctx,
	 struct skl_pipe *pipe)
{
	struct skl_pipe_module *w_module = NULL;
	struct skl_module_cfg *mconfig = NULL;

	list_for_each_entry(w_module, &pipe->w_list, node) {
		mconfig  = w_module->w->priv;

		if (mconfig->is_loadable && ctx->dsp->fw_ops.unload_mod &&
			mconfig->m_state > SKL_MODULE_UNINIT)
			return ctx->dsp->fw_ops.unload_mod(ctx->dsp,
						mconfig->id.module_id);
	}

	/* no modules to unload in this path, so return */
	return 0;
}

/*
 * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we
 * need create the pipeline. So we do following:
 *   - check the resources
 *   - Create the pipeline
 *   - Initialize the modules in pipeline
 *   - finally bind all modules together
 */
static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
							struct skl *skl)
{
	int ret;
	struct skl_module_cfg *mconfig = w->priv;
	struct skl_pipe_module *w_module;
	struct skl_pipe *s_pipe = mconfig->pipe;
	struct skl_module_cfg *src_module = NULL, *dst_module;
	struct skl_sst *ctx = skl->skl_sst;

	/* check resource available */
	if (!skl_is_pipe_mcps_avail(skl, mconfig))
		return -EBUSY;

	if (!skl_is_pipe_mem_avail(skl, mconfig))
		return -ENOMEM;

	/*
	 * Create a list of modules for pipe.
	 * This list contains modules from source to sink
	 */
	ret = skl_create_pipeline(ctx, mconfig->pipe);
	if (ret < 0)
		return ret;

	skl_tplg_alloc_pipe_mem(skl, mconfig);
	skl_tplg_alloc_pipe_mcps(skl, mconfig);

	/* Init all pipe modules from source to sink */
	ret = skl_tplg_init_pipe_modules(skl, s_pipe);
	if (ret < 0)
		return ret;

	/* Bind modules from source to sink */
	list_for_each_entry(w_module, &s_pipe->w_list, node) {
		dst_module = w_module->w->priv;

		if (src_module == NULL) {
			src_module = dst_module;
			continue;
		}

		ret = skl_bind_modules(ctx, src_module, dst_module);
		if (ret < 0)
			return ret;

		src_module = dst_module;
	}

	return 0;
}

/*
 * Some modules require params to be set after the module is bound to
 * all pins connected.
 *
 * The module provider initializes set_param flag for such modules and we
 * send params after binding
 */
static int skl_tplg_set_module_bind_params(struct snd_soc_dapm_widget *w,
			struct skl_module_cfg *mcfg, struct skl_sst *ctx)
{
	int i, ret;
	struct skl_module_cfg *mconfig = w->priv;
	const struct snd_kcontrol_new *k;
	struct soc_bytes_ext *sb;
	struct skl_algo_data *bc;
	struct skl_specific_cfg *sp_cfg;

	/*
	 * check all out/in pins are in bind state.
	 * if so set the module param
	 */
	for (i = 0; i < mcfg->max_out_queue; i++) {
		if (mcfg->m_out_pin[i].pin_state != SKL_PIN_BIND_DONE)
			return 0;
	}

	for (i = 0; i < mcfg->max_in_queue; i++) {
		if (mcfg->m_in_pin[i].pin_state != SKL_PIN_BIND_DONE)
			return 0;
	}

	if (mconfig->formats_config.caps_size > 0 &&
		mconfig->formats_config.set_params == SKL_PARAM_BIND) {
		sp_cfg = &mconfig->formats_config;
		ret = skl_set_module_params(ctx, sp_cfg->caps,
					sp_cfg->caps_size,
					sp_cfg->param_id, mconfig);
		if (ret < 0)
			return ret;
	}

	for (i = 0; i < w->num_kcontrols; i++) {
		k = &w->kcontrol_news[i];
		if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
			sb = (void *) k->private_value;
			bc = (struct skl_algo_data *)sb->dobj.private;

			if (bc->set_params == SKL_PARAM_BIND) {
				ret = skl_set_module_params(ctx,
						(u32 *)bc->params, bc->max,
						bc->param_id, mconfig);
				if (ret < 0)
					return ret;
			}
		}
	}

	return 0;
}

static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
				struct skl *skl,
				struct snd_soc_dapm_widget *src_w,
				struct skl_module_cfg *src_mconfig)
{
	struct snd_soc_dapm_path *p;
	struct snd_soc_dapm_widget *sink = NULL, *next_sink = NULL;
	struct skl_module_cfg *sink_mconfig;
	struct skl_sst *ctx = skl->skl_sst;
	int ret;

	snd_soc_dapm_widget_for_each_sink_path(w, p) {
		if (!p->connect)
			continue;

		dev_dbg(ctx->dev, "%s: src widget=%s\n", __func__, w->name);
		dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name);

		next_sink = p->sink;

		if (!is_skl_dsp_widget_type(p->sink))
			return skl_tplg_bind_sinks(p->sink, skl, src_w, src_mconfig);

		/*
		 * here we will check widgets in sink pipelines, so that
		 * can be any widgets type and we are only interested if
		 * they are ones used for SKL so check that first
		 */
		if ((p->sink->priv != NULL) &&
					is_skl_dsp_widget_type(p->sink)) {

			sink = p->sink;
			sink_mconfig = sink->priv;

			if (src_mconfig->m_state == SKL_MODULE_UNINIT ||
				sink_mconfig->m_state == SKL_MODULE_UNINIT)
				continue;

			/* Bind source to sink, mixin is always source */
			ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
			if (ret)
				return ret;

			/* set module params after bind */
			skl_tplg_set_module_bind_params(src_w, src_mconfig, ctx);
			skl_tplg_set_module_bind_params(sink, sink_mconfig, ctx);

			/* Start sinks pipe first */
			if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) {
				if (sink_mconfig->pipe->conn_type !=
							SKL_PIPE_CONN_TYPE_FE)
					ret = skl_run_pipe(ctx,
							sink_mconfig->pipe);
				if (ret)
					return ret;
			}
		}
	}

	if (!sink)
		return skl_tplg_bind_sinks(next_sink, skl, src_w, src_mconfig);

	return 0;
}

/*
 * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA
 * we need to do following:
 *   - Bind to sink pipeline
 *      Since the sink pipes can be running and we don't get mixer event on
 *      connect for already running mixer, we need to find the sink pipes
 *      here and bind to them. This way dynamic connect works.
 *   - Start sink pipeline, if not running
 *   - Then run current pipe
 */
static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
								struct skl *skl)
{
	struct skl_module_cfg *src_mconfig;
	struct skl_sst *ctx = skl->skl_sst;
	int ret = 0;

	src_mconfig = w->priv;

	/*
	 * find which sink it is connected to, bind with the sink,
	 * if sink is not started, start sink pipe first, then start
	 * this pipe
	 */
	ret = skl_tplg_bind_sinks(w, skl, w, src_mconfig);
	if (ret)
		return ret;

	/* Start source pipe last after starting all sinks */
	if (src_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
		return skl_run_pipe(ctx, src_mconfig->pipe);

	return 0;
}

static struct snd_soc_dapm_widget *skl_get_src_dsp_widget(
		struct snd_soc_dapm_widget *w, struct skl *skl)
{
	struct snd_soc_dapm_path *p;
	struct snd_soc_dapm_widget *src_w = NULL;
	struct skl_sst *ctx = skl->skl_sst;

	snd_soc_dapm_widget_for_each_source_path(w, p) {
		src_w = p->source;
		if (!p->connect)
			continue;

		dev_dbg(ctx->dev, "sink widget=%s\n", w->name);
		dev_dbg(ctx->dev, "src widget=%s\n", p->source->name);

		/*
		 * here we will check widgets in sink pipelines, so that can
		 * be any widgets type and we are only interested if they are
		 * ones used for SKL so check that first
		 */
		if ((p->source->priv != NULL) &&
					is_skl_dsp_widget_type(p->source)) {
			return p->source;
		}
	}

	if (src_w != NULL)
		return skl_get_src_dsp_widget(src_w, skl);

	return NULL;
}

/*
 * in the Post-PMU event of mixer we need to do following:
 *   - Check if this pipe is running
 *   - if not, then
 *	- bind this pipeline to its source pipeline
 *	  if source pipe is already running, this means it is a dynamic
 *	  connection and we need to bind only to that pipe
 *	- start this pipeline
 */
static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
							struct skl *skl)
{
	int ret = 0;
	struct snd_soc_dapm_widget *source, *sink;
	struct skl_module_cfg *src_mconfig, *sink_mconfig;
	struct skl_sst *ctx = skl->skl_sst;
	int src_pipe_started = 0;

	sink = w;
	sink_mconfig = sink->priv;

	/*
	 * If source pipe is already started, that means source is driving
	 * one more sink before this sink got connected, Since source is
	 * started, bind this sink to source and start this pipe.
	 */
	source = skl_get_src_dsp_widget(w, skl);
	if (source != NULL) {
		src_mconfig = source->priv;
		sink_mconfig = sink->priv;
		src_pipe_started = 1;

		/*
		 * check pipe state, then no need to bind or start the
		 * pipe
		 */
		if (src_mconfig->pipe->state != SKL_PIPE_STARTED)
			src_pipe_started = 0;
	}

	if (src_pipe_started) {
		ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
		if (ret)
			return ret;

		/* set module params after bind */
		skl_tplg_set_module_bind_params(source, src_mconfig, ctx);
		skl_tplg_set_module_bind_params(sink, sink_mconfig, ctx);

		if (sink_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
			ret = skl_run_pipe(ctx, sink_mconfig->pipe);
	}

	return ret;
}

/*
 * in the Pre-PMD event of mixer we need to do following:
 *   - Stop the pipe
 *   - find the source connections and remove that from dapm_path_list
 *   - unbind with source pipelines if still connected
 */
static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w,
							struct skl *skl)
{
	struct skl_module_cfg *src_mconfig, *sink_mconfig;
	int ret = 0, i;
	struct skl_sst *ctx = skl->skl_sst;

	sink_mconfig = w->priv;

	/* Stop the pipe */
	ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
	if (ret)
		return ret;

	for (i = 0; i < sink_mconfig->max_in_queue; i++) {
		if (sink_mconfig->m_in_pin[i].pin_state == SKL_PIN_BIND_DONE) {
			src_mconfig = sink_mconfig->m_in_pin[i].tgt_mcfg;
			if (!src_mconfig)
				continue;
			/*
			 * If path_found == 1, that means pmd for source
			 * pipe has not occurred, source is connected to
			 * some other sink. so its responsibility of sink
			 * to unbind itself from source.
			 */
			ret = skl_stop_pipe(ctx, src_mconfig->pipe);
			if (ret < 0)
				return ret;

			ret = skl_unbind_modules(ctx,
						src_mconfig, sink_mconfig);
		}
	}

	return ret;
}

/*
 * in the Post-PMD event of mixer we need to do following:
 *   - Free the mcps used
 *   - Free the mem used
 *   - Unbind the modules within the pipeline
 *   - Delete the pipeline (modules are not required to be explicitly
 *     deleted, pipeline delete is enough here
 */
static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
							struct skl *skl)
{
	struct skl_module_cfg *mconfig = w->priv;
	struct skl_pipe_module *w_module;
	struct skl_module_cfg *src_module = NULL, *dst_module;
	struct skl_sst *ctx = skl->skl_sst;
	struct skl_pipe *s_pipe = mconfig->pipe;
	int ret = 0;

	if (s_pipe->state == SKL_PIPE_INVALID)
		return -EINVAL;

	skl_tplg_free_pipe_mcps(skl, mconfig);
	skl_tplg_free_pipe_mem(skl, mconfig);

	list_for_each_entry(w_module, &s_pipe->w_list, node) {
		dst_module = w_module->w->priv;

		if (mconfig->m_state >= SKL_MODULE_INIT_DONE)
			skl_tplg_free_pipe_mcps(skl, dst_module);
		if (src_module == NULL) {
			src_module = dst_module;
			continue;
		}

		skl_unbind_modules(ctx, src_module, dst_module);
		src_module = dst_module;
	}

	ret = skl_delete_pipe(ctx, mconfig->pipe);

	return skl_tplg_unload_pipe_modules(ctx, s_pipe);
}

/*
 * in the Post-PMD event of PGA we need to do following:
 *   - Free the mcps used
 *   - Stop the pipeline
 *   - In source pipe is connected, unbind with source pipelines
 */
static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
								struct skl *skl)
{
	struct skl_module_cfg *src_mconfig, *sink_mconfig;
	int ret = 0, i;
	struct skl_sst *ctx = skl->skl_sst;

	src_mconfig = w->priv;

	/* Stop the pipe since this is a mixin module */
	ret = skl_stop_pipe(ctx, src_mconfig->pipe);
	if (ret)
		return ret;

	for (i = 0; i < src_mconfig->max_out_queue; i++) {
		if (src_mconfig->m_out_pin[i].pin_state == SKL_PIN_BIND_DONE) {
			sink_mconfig = src_mconfig->m_out_pin[i].tgt_mcfg;
			if (!sink_mconfig)
				continue;
			/*
			 * This is a connecter and if path is found that means
			 * unbind between source and sink has not happened yet
			 */
			ret = skl_unbind_modules(ctx, src_mconfig,
							sink_mconfig);
		}
	}

	return ret;
}

/*
 * In modelling, we assume there will be ONLY one mixer in a pipeline.  If
 * mixer is not required then it is treated as static mixer aka vmixer with
 * a hard path to source module
 * So we don't need to check if source is started or not as hard path puts
 * dependency on each other
 */
static int skl_tplg_vmixer_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k, int event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct skl *skl = get_skl_ctx(dapm->dev);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);

	case SND_SOC_DAPM_POST_PMU:
		return skl_tplg_mixer_dapm_post_pmu_event(w, skl);

	case SND_SOC_DAPM_PRE_PMD:
		return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);

	case SND_SOC_DAPM_POST_PMD:
		return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
	}

	return 0;
}

/*
 * In modelling, we assume there will be ONLY one mixer in a pipeline. If a
 * second one is required that is created as another pipe entity.
 * The mixer is responsible for pipe management and represent a pipeline
 * instance
 */
static int skl_tplg_mixer_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k, int event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct skl *skl = get_skl_ctx(dapm->dev);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		return skl_tplg_mixer_dapm_pre_pmu_event(w, skl);

	case SND_SOC_DAPM_POST_PMU:
		return skl_tplg_mixer_dapm_post_pmu_event(w, skl);

	case SND_SOC_DAPM_PRE_PMD:
		return skl_tplg_mixer_dapm_pre_pmd_event(w, skl);

	case SND_SOC_DAPM_POST_PMD:
		return skl_tplg_mixer_dapm_post_pmd_event(w, skl);
	}

	return 0;
}

/*
 * In modelling, we assumed rest of the modules in pipeline are PGA. But we
 * are interested in last PGA (leaf PGA) in a pipeline to disconnect with
 * the sink when it is running (two FE to one BE or one FE to two BE)
 * scenarios
 */
static int skl_tplg_pga_event(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)

{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct skl *skl = get_skl_ctx(dapm->dev);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		return skl_tplg_pga_dapm_pre_pmu_event(w, skl);

	case SND_SOC_DAPM_POST_PMD:
		return skl_tplg_pga_dapm_post_pmd_event(w, skl);
	}

	return 0;
}

static int skl_tplg_tlv_control_get(struct snd_kcontrol *kcontrol,
			unsigned int __user *data, unsigned int size)
{
	struct soc_bytes_ext *sb =
			(struct soc_bytes_ext *)kcontrol->private_value;
	struct skl_algo_data *bc = (struct skl_algo_data *)sb->dobj.private;
	struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
	struct skl_module_cfg *mconfig = w->priv;
	struct skl *skl = get_skl_ctx(w->dapm->dev);

	if (w->power)
		skl_get_module_params(skl->skl_sst, (u32 *)bc->params,
				      bc->size, bc->param_id, mconfig);

	/* decrement size for TLV header */
	size -= 2 * sizeof(u32);

	/* check size as we don't want to send kernel data */
	if (size > bc->max)
		size = bc->max;

	if (bc->params) {
		if (copy_to_user(data, &bc->param_id, sizeof(u32)))
			return -EFAULT;
		if (copy_to_user(data + 1, &size, sizeof(u32)))
			return -EFAULT;
		if (copy_to_user(data + 2, bc->params, size))
			return -EFAULT;
	}

	return 0;
}

#define SKL_PARAM_VENDOR_ID 0xff

static int skl_tplg_tlv_control_set(struct snd_kcontrol *kcontrol,
			const unsigned int __user *data, unsigned int size)
{
	struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
	struct skl_module_cfg *mconfig = w->priv;
	struct soc_bytes_ext *sb =
			(struct soc_bytes_ext *)kcontrol->private_value;
	struct skl_algo_data *ac = (struct skl_algo_data *)sb->dobj.private;
	struct skl *skl = get_skl_ctx(w->dapm->dev);

	if (ac->params) {
		if (size > ac->max)
			return -EINVAL;

		ac->size = size;
		/*
		 * if the param_is is of type Vendor, firmware expects actual
		 * parameter id and size from the control.
		 */
		if (ac->param_id == SKL_PARAM_VENDOR_ID) {
			if (copy_from_user(ac->params, data, size))
				return -EFAULT;
		} else {
			if (copy_from_user(ac->params,
					   data + 2, size))
				return -EFAULT;
		}

		if (w->power)
			return skl_set_module_params(skl->skl_sst,
						(u32 *)ac->params, ac->size,
						ac->param_id, mconfig);
	}

	return 0;
}

/*
 * Fill the dma id for host and link. In case of passthrough
 * pipeline, this will both host and link in the same
 * pipeline, so need to copy the link and host based on dev_type
 */
static void skl_tplg_fill_dma_id(struct skl_module_cfg *mcfg,
				struct skl_pipe_params *params)
{
	struct skl_pipe *pipe = mcfg->pipe;

	if (pipe->passthru) {
		switch (mcfg->dev_type) {
		case SKL_DEVICE_HDALINK:
			pipe->p_params->link_dma_id = params->link_dma_id;
			break;

		case SKL_DEVICE_HDAHOST:
			pipe->p_params->host_dma_id = params->host_dma_id;
			break;

		default:
			break;
		}
		pipe->p_params->s_fmt = params->s_fmt;
		pipe->p_params->ch = params->ch;
		pipe->p_params->s_freq = params->s_freq;
		pipe->p_params->stream = params->stream;

	} else {
		memcpy(pipe->p_params, params, sizeof(*params));
	}
}

/*
 * The FE params are passed by hw_params of the DAI.
 * On hw_params, the params are stored in Gateway module of the FE and we
 * need to calculate the format in DSP module configuration, that
 * conversion is done here
 */
int skl_tplg_update_pipe_params(struct device *dev,
			struct skl_module_cfg *mconfig,
			struct skl_pipe_params *params)
{
	struct skl_module_fmt *format = NULL;

	skl_tplg_fill_dma_id(mconfig, params);

	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK)
		format = &mconfig->in_fmt[0];
	else
		format = &mconfig->out_fmt[0];

	/* set the hw_params */
	format->s_freq = params->s_freq;
	format->channels = params->ch;
	format->valid_bit_depth = skl_get_bit_depth(params->s_fmt);

	/*
	 * 16 bit is 16 bit container whereas 24 bit is in 32 bit
	 * container so update bit depth accordingly
	 */
	switch (format->valid_bit_depth) {
	case SKL_DEPTH_16BIT:
		format->bit_depth = format->valid_bit_depth;
		break;

	case SKL_DEPTH_24BIT:
	case SKL_DEPTH_32BIT:
		format->bit_depth = SKL_DEPTH_32BIT;
		break;

	default:
		dev_err(dev, "Invalid bit depth %x for pipe\n",
				format->valid_bit_depth);
		return -EINVAL;
	}

	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		mconfig->ibs = (format->s_freq / 1000) *
				(format->channels) *
				(format->bit_depth >> 3);
	} else {
		mconfig->obs = (format->s_freq / 1000) *
				(format->channels) *
				(format->bit_depth >> 3);
	}

	return 0;
}

/*
 * Query the module config for the FE DAI
 * This is used to find the hw_params set for that DAI and apply to FE
 * pipeline
 */
struct skl_module_cfg *
skl_tplg_fe_get_cpr_module(struct snd_soc_dai *dai, int stream)
{
	struct snd_soc_dapm_widget *w;
	struct snd_soc_dapm_path *p = NULL;

	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
		w = dai->playback_widget;
		snd_soc_dapm_widget_for_each_sink_path(w, p) {
			if (p->connect && p->sink->power &&
					!is_skl_dsp_widget_type(p->sink))
				continue;

			if (p->sink->priv) {
				dev_dbg(dai->dev, "set params for %s\n",
						p->sink->name);
				return p->sink->priv;
			}
		}
	} else {
		w = dai->capture_widget;
		snd_soc_dapm_widget_for_each_source_path(w, p) {
			if (p->connect && p->source->power &&
					!is_skl_dsp_widget_type(p->source))
				continue;

			if (p->source->priv) {
				dev_dbg(dai->dev, "set params for %s\n",
						p->source->name);
				return p->source->priv;
			}
		}
	}

	return NULL;
}

static struct skl_module_cfg *skl_get_mconfig_pb_cpr(
		struct snd_soc_dai *dai, struct snd_soc_dapm_widget *w)
{
	struct snd_soc_dapm_path *p;
	struct skl_module_cfg *mconfig = NULL;

	snd_soc_dapm_widget_for_each_source_path(w, p) {
		if (w->endpoints[SND_SOC_DAPM_DIR_OUT] > 0) {
			if (p->connect &&
				    (p->sink->id == snd_soc_dapm_aif_out) &&
				    p->source->priv) {
				mconfig = p->source->priv;
				return mconfig;
			}
			mconfig = skl_get_mconfig_pb_cpr(dai, p->source);
			if (mconfig)
				return mconfig;
		}
	}
	return mconfig;
}

static struct skl_module_cfg *skl_get_mconfig_cap_cpr(
		struct snd_soc_dai *dai, struct snd_soc_dapm_widget *w)
{
	struct snd_soc_dapm_path *p;
	struct skl_module_cfg *mconfig = NULL;

	snd_soc_dapm_widget_for_each_sink_path(w, p) {
		if (w->endpoints[SND_SOC_DAPM_DIR_IN] > 0) {
			if (p->connect &&
				    (p->source->id == snd_soc_dapm_aif_in) &&
				    p->sink->priv) {
				mconfig = p->sink->priv;
				return mconfig;
			}
			mconfig = skl_get_mconfig_cap_cpr(dai, p->sink);
			if (mconfig)
				return mconfig;
		}
	}
	return mconfig;
}

struct skl_module_cfg *
skl_tplg_be_get_cpr_module(struct snd_soc_dai *dai, int stream)
{
	struct snd_soc_dapm_widget *w;
	struct skl_module_cfg *mconfig;

	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
		w = dai->playback_widget;
		mconfig = skl_get_mconfig_pb_cpr(dai, w);
	} else {
		w = dai->capture_widget;
		mconfig = skl_get_mconfig_cap_cpr(dai, w);
	}
	return mconfig;
}

static u8 skl_tplg_be_link_type(int dev_type)
{
	int ret;

	switch (dev_type) {
	case SKL_DEVICE_BT:
		ret = NHLT_LINK_SSP;
		break;

	case SKL_DEVICE_DMIC:
		ret = NHLT_LINK_DMIC;
		break;

	case SKL_DEVICE_I2S:
		ret = NHLT_LINK_SSP;
		break;

	case SKL_DEVICE_HDALINK:
		ret = NHLT_LINK_HDA;
		break;

	default:
		ret = NHLT_LINK_INVALID;
		break;
	}

	return ret;
}

/*
 * Fill the BE gateway parameters
 * The BE gateway expects a blob of parameters which are kept in the ACPI
 * NHLT blob, so query the blob for interface type (i2s/pdm) and instance.
 * The port can have multiple settings so pick based on the PCM
 * parameters
 */
static int skl_tplg_be_fill_pipe_params(struct snd_soc_dai *dai,
				struct skl_module_cfg *mconfig,
				struct skl_pipe_params *params)
{
	struct nhlt_specific_cfg *cfg;
	struct skl *skl = get_skl_ctx(dai->dev);
	int link_type = skl_tplg_be_link_type(mconfig->dev_type);

	skl_tplg_fill_dma_id(mconfig, params);

	if (link_type == NHLT_LINK_HDA)
		return 0;

	/* update the blob based on virtual bus_id*/
	cfg = skl_get_ep_blob(skl, mconfig->vbus_id, link_type,
					params->s_fmt, params->ch,
					params->s_freq, params->stream);
	if (cfg) {
		mconfig->formats_config.caps_size = cfg->size;
		mconfig->formats_config.caps = (u32 *) &cfg->caps;
	} else {
		dev_err(dai->dev, "Blob NULL for id %x type %d dirn %d\n",
					mconfig->vbus_id, link_type,
					params->stream);
		dev_err(dai->dev, "PCM: ch %d, freq %d, fmt %d\n",
				 params->ch, params->s_freq, params->s_fmt);
		return -EINVAL;
	}

	return 0;
}

static int skl_tplg_be_set_src_pipe_params(struct snd_soc_dai *dai,
				struct snd_soc_dapm_widget *w,
				struct skl_pipe_params *params)
{
	struct snd_soc_dapm_path *p;
	int ret = -EIO;

	snd_soc_dapm_widget_for_each_source_path(w, p) {
		if (p->connect && is_skl_dsp_widget_type(p->source) &&
						p->source->priv) {

			ret = skl_tplg_be_fill_pipe_params(dai,
						p->source->priv, params);
			if (ret < 0)
				return ret;
		} else {
			ret = skl_tplg_be_set_src_pipe_params(dai,
						p->source, params);
			if (ret < 0)
				return ret;
		}
	}

	return ret;
}

static int skl_tplg_be_set_sink_pipe_params(struct snd_soc_dai *dai,
	struct snd_soc_dapm_widget *w, struct skl_pipe_params *params)
{
	struct snd_soc_dapm_path *p = NULL;
	int ret = -EIO;

	snd_soc_dapm_widget_for_each_sink_path(w, p) {
		if (p->connect && is_skl_dsp_widget_type(p->sink) &&
						p->sink->priv) {

			ret = skl_tplg_be_fill_pipe_params(dai,
						p->sink->priv, params);
			if (ret < 0)
				return ret;
		} else {
			ret = skl_tplg_be_set_sink_pipe_params(
						dai, p->sink, params);
			if (ret < 0)
				return ret;
		}
	}

	return ret;
}

/*
 * BE hw_params can be a source parameters (capture) or sink parameters
 * (playback). Based on sink and source we need to either find the source
 * list or the sink list and set the pipeline parameters
 */
int skl_tplg_be_update_params(struct snd_soc_dai *dai,
				struct skl_pipe_params *params)
{
	struct snd_soc_dapm_widget *w;

	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		w = dai->playback_widget;

		return skl_tplg_be_set_src_pipe_params(dai, w, params);

	} else {
		w = dai->capture_widget;

		return skl_tplg_be_set_sink_pipe_params(dai, w, params);
	}

	return 0;
}

static const struct snd_soc_tplg_widget_events skl_tplg_widget_ops[] = {
	{SKL_MIXER_EVENT, skl_tplg_mixer_event},
	{SKL_VMIXER_EVENT, skl_tplg_vmixer_event},
	{SKL_PGA_EVENT, skl_tplg_pga_event},
};

static const struct snd_soc_tplg_bytes_ext_ops skl_tlv_ops[] = {
	{SKL_CONTROL_TYPE_BYTE_TLV, skl_tplg_tlv_control_get,
					skl_tplg_tlv_control_set},
};

/*
 * The topology binary passes the pin info for a module so initialize the pin
 * info passed into module instance
 */
static void skl_fill_module_pin_info(struct skl_dfw_module_pin *dfw_pin,
						struct skl_module_pin *m_pin,
						bool is_dynamic, int max_pin)
{
	int i;

	for (i = 0; i < max_pin; i++) {
		m_pin[i].id.module_id = dfw_pin[i].module_id;
		m_pin[i].id.instance_id = dfw_pin[i].instance_id;
		m_pin[i].in_use = false;
		m_pin[i].is_dynamic = is_dynamic;
		m_pin[i].pin_state = SKL_PIN_UNBIND;
	}
}

/*
 * Add pipeline from topology binary into driver pipeline list
 *
 * If already added we return that instance
 * Otherwise we create a new instance and add into driver list
 */
static struct skl_pipe *skl_tplg_add_pipe(struct device *dev,
			struct skl *skl, struct skl_dfw_pipe *dfw_pipe)
{
	struct skl_pipeline *ppl;
	struct skl_pipe *pipe;
	struct skl_pipe_params *params;

	list_for_each_entry(ppl, &skl->ppl_list, node) {
		if (ppl->pipe->ppl_id == dfw_pipe->pipe_id)
			return ppl->pipe;
	}

	ppl = devm_kzalloc(dev, sizeof(*ppl), GFP_KERNEL);
	if (!ppl)
		return NULL;

	pipe = devm_kzalloc(dev, sizeof(*pipe), GFP_KERNEL);
	if (!pipe)
		return NULL;

	params = devm_kzalloc(dev, sizeof(*params), GFP_KERNEL);
	if (!params)
		return NULL;

	pipe->ppl_id = dfw_pipe->pipe_id;
	pipe->memory_pages = dfw_pipe->memory_pages;
	pipe->pipe_priority = dfw_pipe->pipe_priority;
	pipe->conn_type = dfw_pipe->conn_type;
	pipe->state = SKL_PIPE_INVALID;
	pipe->p_params = params;
	INIT_LIST_HEAD(&pipe->w_list);

	ppl->pipe = pipe;
	list_add(&ppl->node, &skl->ppl_list);

	return ppl->pipe;
}

static void skl_tplg_fill_fmt(struct skl_module_fmt *dst_fmt,
				struct skl_dfw_module_fmt *src_fmt,
				int pins)
{
	int i;

	for (i = 0; i < pins; i++) {
		dst_fmt[i].channels  = src_fmt[i].channels;
		dst_fmt[i].s_freq = src_fmt[i].freq;
		dst_fmt[i].bit_depth = src_fmt[i].bit_depth;
		dst_fmt[i].valid_bit_depth = src_fmt[i].valid_bit_depth;
		dst_fmt[i].ch_cfg = src_fmt[i].ch_cfg;
		dst_fmt[i].ch_map = src_fmt[i].ch_map;
		dst_fmt[i].interleaving_style = src_fmt[i].interleaving_style;
		dst_fmt[i].sample_type = src_fmt[i].sample_type;
	}
}

static void skl_clear_pin_config(struct snd_soc_platform *platform,
				struct snd_soc_dapm_widget *w)
{
	int i;
	struct skl_module_cfg *mconfig;
	struct skl_pipe *pipe;

	if (!strncmp(w->dapm->component->name, platform->component.name,
					strlen(platform->component.name))) {
		mconfig = w->priv;
		pipe = mconfig->pipe;
		for (i = 0; i < mconfig->max_in_queue; i++) {
			mconfig->m_in_pin[i].in_use = false;
			mconfig->m_in_pin[i].pin_state = SKL_PIN_UNBIND;
		}
		for (i = 0; i < mconfig->max_out_queue; i++) {
			mconfig->m_out_pin[i].in_use = false;
			mconfig->m_out_pin[i].pin_state = SKL_PIN_UNBIND;
		}
		pipe->state = SKL_PIPE_INVALID;
		mconfig->m_state = SKL_MODULE_UNINIT;
	}
}

void skl_cleanup_resources(struct skl *skl)
{
	struct skl_sst *ctx = skl->skl_sst;
	struct snd_soc_platform *soc_platform = skl->platform;
	struct snd_soc_dapm_widget *w;
	struct snd_soc_card *card;

	if (soc_platform == NULL)
		return;

	card = soc_platform->component.card;
	if (!card || !card->instantiated)
		return;

	skl->resource.mem = 0;
	skl->resource.mcps = 0;

	list_for_each_entry(w, &card->widgets, list) {
		if (is_skl_dsp_widget_type(w) && (w->priv != NULL))
			skl_clear_pin_config(soc_platform, w);
	}

	skl_clear_module_cnt(ctx->dsp);
}

/*
 * Topology core widget load callback
 *
 * This is used to save the private data for each widget which gives
 * information to the driver about module and pipeline parameters which DSP
 * FW expects like ids, resource values, formats etc
 */
static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
				struct snd_soc_dapm_widget *w,
				struct snd_soc_tplg_dapm_widget *tplg_w)
{
	int ret;
	struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
	struct skl *skl = ebus_to_skl(ebus);
	struct hdac_bus *bus = ebus_to_hbus(ebus);
	struct skl_module_cfg *mconfig;
	struct skl_pipe *pipe;
	struct skl_dfw_module *dfw_config =
				(struct skl_dfw_module *)tplg_w->priv.data;

	if (!tplg_w->priv.size)
		goto bind_event;

	mconfig = devm_kzalloc(bus->dev, sizeof(*mconfig), GFP_KERNEL);

	if (!mconfig)
		return -ENOMEM;

	w->priv = mconfig;
	memcpy(&mconfig->guid, &dfw_config->uuid, 16);

	ret = snd_skl_get_module_info(skl->skl_sst, mconfig->guid, dfw_config);
	if (ret < 0)
		return ret;

	mconfig->id.module_id = dfw_config->module_id;
	mconfig->id.instance_id = dfw_config->instance_id;
	mconfig->mcps = dfw_config->max_mcps;
	mconfig->ibs = dfw_config->ibs;
	mconfig->obs = dfw_config->obs;
	mconfig->core_id = dfw_config->core_id;
	mconfig->max_in_queue = dfw_config->max_in_queue;
	mconfig->max_out_queue = dfw_config->max_out_queue;
	mconfig->is_loadable = dfw_config->is_loadable;
	skl_tplg_fill_fmt(mconfig->in_fmt, dfw_config->in_fmt,
						MODULE_MAX_IN_PINS);
	skl_tplg_fill_fmt(mconfig->out_fmt, dfw_config->out_fmt,
						MODULE_MAX_OUT_PINS);

	mconfig->params_fixup = dfw_config->params_fixup;
	mconfig->converter = dfw_config->converter;
	mconfig->m_type = dfw_config->module_type;
	mconfig->vbus_id = dfw_config->vbus_id;
	mconfig->mem_pages = dfw_config->mem_pages;

	pipe = skl_tplg_add_pipe(bus->dev, skl, &dfw_config->pipe);
	if (pipe)
		mconfig->pipe = pipe;

	mconfig->dev_type = dfw_config->dev_type;
	mconfig->hw_conn_type = dfw_config->hw_conn_type;
	mconfig->time_slot = dfw_config->time_slot;
	mconfig->formats_config.caps_size = dfw_config->caps.caps_size;

	mconfig->m_in_pin = devm_kzalloc(bus->dev, (mconfig->max_in_queue) *
						sizeof(*mconfig->m_in_pin),
						GFP_KERNEL);
	if (!mconfig->m_in_pin)
		return -ENOMEM;

	mconfig->m_out_pin = devm_kzalloc(bus->dev, (mconfig->max_out_queue) *
						sizeof(*mconfig->m_out_pin),
						GFP_KERNEL);
	if (!mconfig->m_out_pin)
		return -ENOMEM;

	skl_fill_module_pin_info(dfw_config->in_pin, mconfig->m_in_pin,
						dfw_config->is_dynamic_in_pin,
						mconfig->max_in_queue);

	skl_fill_module_pin_info(dfw_config->out_pin, mconfig->m_out_pin,
						 dfw_config->is_dynamic_out_pin,
							mconfig->max_out_queue);


	if (mconfig->formats_config.caps_size == 0)
		goto bind_event;

	mconfig->formats_config.caps = (u32 *)devm_kzalloc(bus->dev,
			mconfig->formats_config.caps_size, GFP_KERNEL);

	if (mconfig->formats_config.caps == NULL)
		return -ENOMEM;

	memcpy(mconfig->formats_config.caps, dfw_config->caps.caps,
						 dfw_config->caps.caps_size);
	mconfig->formats_config.param_id = dfw_config->caps.param_id;
	mconfig->formats_config.set_params = dfw_config->caps.set_params;

bind_event:
	if (tplg_w->event_type == 0) {
		dev_dbg(bus->dev, "ASoC: No event handler required\n");
		return 0;
	}

	ret = snd_soc_tplg_widget_bind_event(w, skl_tplg_widget_ops,
					ARRAY_SIZE(skl_tplg_widget_ops),
					tplg_w->event_type);

	if (ret) {
		dev_err(bus->dev, "%s: No matching event handlers found for %d\n",
					__func__, tplg_w->event_type);
		return -EINVAL;
	}

	return 0;
}

static int skl_init_algo_data(struct device *dev, struct soc_bytes_ext *be,
					struct snd_soc_tplg_bytes_control *bc)
{
	struct skl_algo_data *ac;
	struct skl_dfw_algo_data *dfw_ac =
				(struct skl_dfw_algo_data *)bc->priv.data;

	ac = devm_kzalloc(dev, sizeof(*ac), GFP_KERNEL);
	if (!ac)
		return -ENOMEM;

	/* Fill private data */
	ac->max = dfw_ac->max;
	ac->param_id = dfw_ac->param_id;
	ac->set_params = dfw_ac->set_params;
	ac->size = dfw_ac->max;

	if (ac->max) {
		ac->params = (char *) devm_kzalloc(dev, ac->max, GFP_KERNEL);
		if (!ac->params)
			return -ENOMEM;

		memcpy(ac->params, dfw_ac->params, ac->max);
	}

	be->dobj.private  = ac;
	return 0;
}

static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
				struct snd_kcontrol_new *kctl,
				struct snd_soc_tplg_ctl_hdr *hdr)
{
	struct soc_bytes_ext *sb;
	struct snd_soc_tplg_bytes_control *tplg_bc;
	struct hdac_ext_bus *ebus  = snd_soc_component_get_drvdata(cmpnt);
	struct hdac_bus *bus = ebus_to_hbus(ebus);

	switch (hdr->ops.info) {
	case SND_SOC_TPLG_CTL_BYTES:
		tplg_bc = container_of(hdr,
				struct snd_soc_tplg_bytes_control, hdr);
		if (kctl->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
			sb = (struct soc_bytes_ext *)kctl->private_value;
			if (tplg_bc->priv.size)
				return skl_init_algo_data(
						bus->dev, sb, tplg_bc);
		}
		break;

	default:
		dev_warn(bus->dev, "Control load not supported %d:%d:%d\n",
			hdr->ops.get, hdr->ops.put, hdr->ops.info);
		break;
	}

	return 0;
}

static struct snd_soc_tplg_ops skl_tplg_ops  = {
	.widget_load = skl_tplg_widget_load,
	.control_load = skl_tplg_control_load,
	.bytes_ext_ops = skl_tlv_ops,
	.bytes_ext_ops_count = ARRAY_SIZE(skl_tlv_ops),
};

/*
 * A pipe can have multiple modules, each of them will be a DAPM widget as
 * well. While managing a pipeline we need to get the list of all the
 * widgets in a pipelines, so this helper - skl_tplg_create_pipe_widget_list()
 * helps to get the SKL type widgets in that pipeline
 */
static int skl_tplg_create_pipe_widget_list(struct snd_soc_platform *platform)
{
	struct snd_soc_dapm_widget *w;
	struct skl_module_cfg *mcfg = NULL;
	struct skl_pipe_module *p_module = NULL;
	struct skl_pipe *pipe;

	list_for_each_entry(w, &platform->component.card->widgets, list) {
		if (is_skl_dsp_widget_type(w) && w->priv != NULL) {
			mcfg = w->priv;
			pipe = mcfg->pipe;

			p_module = devm_kzalloc(platform->dev,
						sizeof(*p_module), GFP_KERNEL);
			if (!p_module)
				return -ENOMEM;

			p_module->w = w;
			list_add_tail(&p_module->node, &pipe->w_list);
		}
	}

	return 0;
}

static void skl_tplg_set_pipe_type(struct skl *skl, struct skl_pipe *pipe)
{
	struct skl_pipe_module *w_module;
	struct snd_soc_dapm_widget *w;
	struct skl_module_cfg *mconfig;
	bool host_found = false, link_found = false;

	list_for_each_entry(w_module, &pipe->w_list, node) {
		w = w_module->w;
		mconfig = w->priv;

		if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
			host_found = true;
		else if (mconfig->dev_type != SKL_DEVICE_NONE)
			link_found = true;
	}

	if (host_found && link_found)
		pipe->passthru = true;
	else
		pipe->passthru = false;
}

/* This will be read from topology manifest, currently defined here */
#define SKL_MAX_MCPS 30000000
#define SKL_FW_MAX_MEM 1000000

/*
 * SKL topology init routine
 */
int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus)
{
	int ret;
	const struct firmware *fw;
	struct hdac_bus *bus = ebus_to_hbus(ebus);
	struct skl *skl = ebus_to_skl(ebus);
	struct skl_pipeline *ppl;

	ret = request_firmware(&fw, skl->tplg_name, bus->dev);
	if (ret < 0) {
		dev_err(bus->dev, "tplg fw %s load failed with %d\n",
				skl->tplg_name, ret);
		ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
		if (ret < 0) {
			dev_err(bus->dev, "Fallback tplg fw %s load failed with %d\n",
					"dfw_sst.bin", ret);
			return ret;
		}
	}

	/*
	 * The complete tplg for SKL is loaded as index 0, we don't use
	 * any other index
	 */
	ret = snd_soc_tplg_component_load(&platform->component,
					&skl_tplg_ops, fw, 0);
	if (ret < 0) {
		dev_err(bus->dev, "tplg component load failed%d\n", ret);
		release_firmware(fw);
		return -EINVAL;
	}

	skl->resource.max_mcps = SKL_MAX_MCPS;
	skl->resource.max_mem = SKL_FW_MAX_MEM;

	skl->tplg = fw;
	ret = skl_tplg_create_pipe_widget_list(platform);
	if (ret < 0)
		return ret;

	list_for_each_entry(ppl, &skl->ppl_list, node)
		skl_tplg_set_pipe_type(skl, ppl->pipe);

	return 0;
}