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-rw-r--r--sound/soc/intel/skylake/skl-topology.c1252
1 files changed, 1252 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
new file mode 100644
index 000000000000..a7854c8fc523
--- /dev/null
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -0,0 +1,1252 @@
+/*
+ * 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"
+
+#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. Then only add this to pool
+ * This is freed when pipe is deleted
+ * Note: DSP does actual memory management we only keep track for complete
+ * pool
+ */
+static bool skl_tplg_alloc_pipe_mem(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;
+ }
+
+ skl->resource.mem += mconfig->pipe->memory_pages;
+ return true;
+}
+
+/*
+ * 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. This adds the mcps to driver counter
+ * This is removed on pipeline delete
+ */
+static bool skl_tplg_alloc_pipe_mcps(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 memory available %d > mem %d\n",
+ skl->resource.max_mcps, skl->resource.mcps);
+ return false;
+ }
+
+ skl->resource.mcps += mconfig->mcps;
+ return true;
+}
+
+/*
+ * 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.channels);
+ dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt.s_freq);
+ dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt.ch_cfg);
+ dev_dbg(ctx->dev, "valid bit depth = %d\n",
+ mcfg->in_fmt.valid_bit_depth);
+ dev_dbg(ctx->dev, "Output Format:\n");
+ dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt.channels);
+ dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt.s_freq);
+ dev_dbg(ctx->dev, "valid bit depth = %d\n",
+ mcfg->out_fmt.valid_bit_depth);
+ dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt.ch_cfg);
+}
+
+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;
+ if (fixup & SKL_FMT_FIXUP_MASK)
+ fmt->valid_bit_depth = params->s_fmt;
+}
+
+/*
+ * 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;
+
+ in_fmt = &m_cfg->in_fmt;
+ out_fmt = &m_cfg->out_fmt;
+
+ 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;
+
+ if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
+ multiplier = 5;
+
+ mcfg->ibs = (mcfg->in_fmt.s_freq / 1000) *
+ (mcfg->in_fmt.channels) *
+ (mcfg->in_fmt.bit_depth >> 3) *
+ multiplier;
+
+ mcfg->obs = (mcfg->out_fmt.s_freq / 1000) *
+ (mcfg->out_fmt.channels) *
+ (mcfg->out_fmt.bit_depth >> 3) *
+ multiplier;
+}
+
+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);
+}
+
+/*
+ * 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_get_pipe_widget() helps
+ * to get the SKL type widgets in that pipeline
+ */
+static int skl_tplg_alloc_pipe_widget(struct device *dev,
+ struct snd_soc_dapm_widget *w, struct skl_pipe *pipe)
+{
+ struct skl_module_cfg *src_module = NULL;
+ struct snd_soc_dapm_path *p = NULL;
+ struct skl_pipe_module *p_module = NULL;
+
+ p_module = devm_kzalloc(dev, sizeof(*p_module), GFP_KERNEL);
+ if (!p_module)
+ return -ENOMEM;
+
+ p_module->w = w;
+ list_add_tail(&p_module->node, &pipe->w_list);
+
+ snd_soc_dapm_widget_for_each_sink_path(w, p) {
+ if ((p->sink->priv == NULL)
+ && (!is_skl_dsp_widget_type(w)))
+ continue;
+
+ if ((p->sink->priv != NULL) && p->connect
+ && is_skl_dsp_widget_type(p->sink)) {
+
+ src_module = p->sink->priv;
+ if (pipe->ppl_id == src_module->pipe->ppl_id)
+ skl_tplg_alloc_pipe_widget(dev,
+ p->sink, pipe);
+ }
+ }
+ 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_tplg_alloc_pipe_mcps(skl, mconfig))
+ return -ENOMEM;
+
+ /*
+ * apply fix/conversion to module params based on
+ * FE/BE params
+ */
+ skl_tplg_update_module_params(w, ctx);
+ ret = skl_init_module(ctx, mconfig, NULL);
+ if (ret < 0)
+ return ret;
+ }
+
+ 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_tplg_alloc_pipe_mcps(skl, mconfig))
+ return -EBUSY;
+
+ if (!skl_tplg_alloc_pipe_mem(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;
+
+ /*
+ * we create a w_list of all widgets in that pipe. This list is not
+ * freed on PMD event as widgets within a pipe are static. This
+ * saves us cycles to get widgets in pipe every time.
+ *
+ * So if we have already initialized all the widgets of a pipeline
+ * we skip, so check for list_empty and create the list if empty
+ */
+ if (list_empty(&s_pipe->w_list)) {
+ ret = skl_tplg_alloc_pipe_widget(ctx->dev, w, s_pipe);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* 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;
+}
+
+/*
+ * 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 snd_soc_dapm_path *p;
+ struct skl_dapm_path_list *path_list;
+ struct snd_soc_dapm_widget *source, *sink;
+ struct skl_module_cfg *src_mconfig, *sink_mconfig;
+ struct skl_sst *ctx = skl->skl_sst;
+ int ret = 0;
+
+ source = w;
+ src_mconfig = source->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
+ */
+ snd_soc_dapm_widget_for_each_source_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);
+
+ /*
+ * 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;
+ src_mconfig = source->priv;
+ sink_mconfig = sink->priv;
+
+ /* Bind source to sink, mixin is always source */
+ ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
+ if (ret)
+ return ret;
+
+ /* Start sinks pipe first */
+ if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) {
+ ret = skl_run_pipe(ctx, sink_mconfig->pipe);
+ if (ret)
+ return ret;
+ }
+
+ path_list = kzalloc(
+ sizeof(struct skl_dapm_path_list),
+ GFP_KERNEL);
+ if (path_list == NULL)
+ return -ENOMEM;
+
+ /* Add connected path to one global list */
+ path_list->dapm_path = p;
+ list_add_tail(&path_list->node, &skl->dapm_path_list);
+ break;
+ }
+ }
+
+ /* Start source pipe last after starting all sinks */
+ ret = skl_run_pipe(ctx, src_mconfig->pipe);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+/*
+ * 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_path *p;
+ 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.
+ */
+ snd_soc_dapm_widget_for_each_sink_path(w, p) {
+ 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)) {
+ source = p->source;
+ 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;
+
+ 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 snd_soc_dapm_widget *source, *sink;
+ struct skl_module_cfg *src_mconfig, *sink_mconfig;
+ int ret = 0, path_found = 0;
+ struct skl_dapm_path_list *path_list, *tmp_list;
+ struct skl_sst *ctx = skl->skl_sst;
+
+ sink = w;
+ sink_mconfig = sink->priv;
+
+ /* Stop the pipe */
+ ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
+ if (ret)
+ return ret;
+
+ /*
+ * This list, dapm_path_list handling here does not need any locks
+ * as we are under dapm lock while handling widget events.
+ * List can be manipulated safely only under dapm widgets handler
+ * routines
+ */
+ list_for_each_entry_safe(path_list, tmp_list,
+ &skl->dapm_path_list, node) {
+ if (path_list->dapm_path->sink == sink) {
+ dev_dbg(ctx->dev, "Path found = %s\n",
+ path_list->dapm_path->name);
+ source = path_list->dapm_path->source;
+ src_mconfig = source->priv;
+ path_found = 1;
+
+ list_del(&path_list->node);
+ kfree(path_list);
+ break;
+ }
+ }
+
+ /*
+ * 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.
+ */
+ if (path_found) {
+ 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;
+
+ skl_tplg_free_pipe_mcps(skl, mconfig);
+
+ 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_unbind_modules(ctx, src_module, dst_module);
+ if (ret < 0)
+ return ret;
+
+ src_module = dst_module;
+ }
+
+ ret = skl_delete_pipe(ctx, mconfig->pipe);
+ skl_tplg_free_pipe_mem(skl, mconfig);
+
+ return ret;
+}
+
+/*
+ * 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 snd_soc_dapm_widget *source, *sink;
+ struct skl_module_cfg *src_mconfig, *sink_mconfig;
+ int ret = 0, path_found = 0;
+ struct skl_dapm_path_list *path_list, *tmp_path_list;
+ struct skl_sst *ctx = skl->skl_sst;
+
+ source = w;
+ src_mconfig = source->priv;
+
+ skl_tplg_free_pipe_mcps(skl, src_mconfig);
+ /* Stop the pipe since this is a mixin module */
+ ret = skl_stop_pipe(ctx, src_mconfig->pipe);
+ if (ret)
+ return ret;
+
+ list_for_each_entry_safe(path_list, tmp_path_list, &skl->dapm_path_list, node) {
+ if (path_list->dapm_path->source == source) {
+ dev_dbg(ctx->dev, "Path found = %s\n",
+ path_list->dapm_path->name);
+ sink = path_list->dapm_path->sink;
+ sink_mconfig = sink->priv;
+ path_found = 1;
+
+ list_del(&path_list->node);
+ kfree(path_list);
+ break;
+ }
+ }
+
+ /*
+ * This is a connector and if path is found that means
+ * unbind between source and sink has not happened yet
+ */
+ if (path_found) {
+ 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 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_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;
+}
+
+/*
+ * 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_pipe *pipe = mconfig->pipe;
+ struct skl_module_fmt *format = NULL;
+
+ memcpy(pipe->p_params, params, sizeof(*params));
+
+ if (params->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ format = &mconfig->in_fmt;
+ else
+ format = &mconfig->out_fmt;
+
+ /* 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:
+ 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 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 skl_pipe *pipe = mconfig->pipe;
+ struct nhlt_specific_cfg *cfg;
+ struct skl *skl = get_skl_ctx(dai->dev);
+ int link_type = skl_tplg_be_link_type(mconfig->dev_type);
+
+ memcpy(pipe->p_params, params, sizeof(*params));
+
+ /* 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) {
+
+ if (!p->source->power) {
+ ret = skl_tplg_be_fill_pipe_params(
+ dai, p->source->priv,
+ params);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EBUSY;
+ }
+ } 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) {
+
+ if (!p->sink->power) {
+ ret = skl_tplg_be_fill_pipe_params(
+ dai, p->sink->priv, params);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EBUSY;
+ }
+
+ } 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},
+};
+
+/*
+ * 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;
+ }
+}
+
+/*
+ * 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;
+}
+
+/*
+ * 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;
+ 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;
+ mconfig->in_fmt.channels = dfw_config->in_fmt.channels;
+ mconfig->in_fmt.s_freq = dfw_config->in_fmt.freq;
+ mconfig->in_fmt.bit_depth = dfw_config->in_fmt.bit_depth;
+ mconfig->in_fmt.valid_bit_depth =
+ dfw_config->in_fmt.valid_bit_depth;
+ mconfig->in_fmt.ch_cfg = dfw_config->in_fmt.ch_cfg;
+ mconfig->out_fmt.channels = dfw_config->out_fmt.channels;
+ mconfig->out_fmt.s_freq = dfw_config->out_fmt.freq;
+ mconfig->out_fmt.bit_depth = dfw_config->out_fmt.bit_depth;
+ mconfig->out_fmt.valid_bit_depth =
+ dfw_config->out_fmt.valid_bit_depth;
+ mconfig->out_fmt.ch_cfg = dfw_config->out_fmt.ch_cfg;
+ 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;
+
+ 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);
+
+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 struct snd_soc_tplg_ops skl_tplg_ops = {
+ .widget_load = skl_tplg_widget_load,
+};
+
+/* 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);
+
+ ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
+ if (ret < 0) {
+ dev_err(bus->dev, "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);
+ return -EINVAL;
+ }
+
+ skl->resource.max_mcps = SKL_MAX_MCPS;
+ skl->resource.max_mem = SKL_FW_MAX_MEM;
+
+ return 0;
+}