@@ -1,4 +1,5 @@
-snd-soc-skl-objs := skl.o skl-pcm.o skl-nhlt.o skl-messages.o
+snd-soc-skl-objs := skl.o skl-pcm.o skl-nhlt.o skl-messages.o \
+skl-topology.o
obj-$(CONFIG_SND_SOC_INTEL_SKYLAKE) += snd-soc-skl.o
new file mode 100644
@@ -0,0 +1,220 @@
+/*
+ * 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"
+
+/*
+ * 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;
+ }
+}
+
+static int skl_tplg_bind_unbind_pipes(struct skl_module_cfg *src_module,
+ struct skl_module_cfg *sink_module, struct skl_sst *ctx, bool bind)
+{
+ int ret;
+
+ if (!bind) {
+ ret = skl_stop_pipe(ctx, src_module->pipe);
+ if (ret < 0)
+ return ret;
+
+ ret = skl_unbind_modules(ctx, src_module, sink_module);
+ } else {
+ ret = skl_bind_modules(ctx, src_module, sink_module);
+ }
+
+ return ret;
+}
+
+/*
+ * 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_is_pipe_mem_available(struct skl *skl,
+ struct skl_module_cfg *mconfig)
+{
+ struct skl_sst *ctx = skl->skl_sst;
+
+ dev_dbg(ctx->dev, "%s: module_id =%d instance=%d\n", __func__,
+ mconfig->id.module_id, mconfig->id.instance_id);
+
+ if (skl->resource.mem + mconfig->pipe->memory_pages > skl->resource.max_mem) {
+ 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_is_pipe_mcps_available(struct skl *skl,
+ struct skl_module_cfg *mconfig)
+{
+ struct skl_sst *ctx = skl->skl_sst;
+
+ dev_dbg(ctx->dev, "%s: module_id = %d instance=%d\n", __func__,
+ mconfig->id.module_id, mconfig->id.instance_id);
+
+ if (skl->resource.mcps + mconfig->mcps > skl->resource.max_mcps) {
+ 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;
+}
+
+/*
+ * A pipe can have multiple modules each of the 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_get_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);
+
+ list_for_each_entry(p, &w->sinks, list_source) {
+ 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) {
+ dev_dbg(dev, "found widget=%s\n", p->sink->name);
+ skl_tplg_get_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;
+
+ dev_dbg(ctx->dev, "%s: pipe=%d\n", __func__, pipe->ppl_id);
+ list_for_each_entry(w_module, &pipe->w_list, node) {
+ w = w_module->w;
+ dev_dbg(ctx->dev, "Pipe Module =%s\n", w->name);
+ mconfig = w->priv;
+
+ /* check resource available */
+ if (!skl_tplg_is_pipe_mcps_available(skl, mconfig))
+ return -ENOMEM;
+
+ ret = skl_init_module(ctx, mconfig, NULL);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * Once all the modules in a pipe are instantiated, they need to be
+ * connected.
+ * On removal, before deleting a pipeline the modules need to disconnected.
+ *
+ * This is achieved by binding/unbinding these modules
+ */
+static int skl_tplg_bind_unbind_pipe_modules(struct skl_sst *ctx,
+ struct skl_pipe *pipe, bool bind)
+{
+ struct skl_pipe_module *w_module;
+ struct skl_module_cfg *src_module = NULL;
+ struct skl_module_cfg *dst_module;
+ int ret = 0;
+
+ dev_dbg(ctx->dev, "%s: pipe=%d\n", __func__, pipe->ppl_id);
+ list_for_each_entry(w_module, &pipe->w_list, node) {
+ dst_module = w_module->w->priv;
+
+ if (src_module == NULL) {
+ src_module = dst_module;
+ continue;
+ }
+
+ if (bind)
+ ret = skl_bind_modules(ctx, src_module, dst_module);
+ else
+ ret = skl_unbind_modules(ctx, src_module, dst_module);
+ if (ret < 0)
+ return ret;
+
+ src_module = dst_module;
+ }
+ return 0;
+}
@@ -263,6 +263,16 @@ struct skl_module_cfg {
struct skl_specific_cfg formats_config;
};
+struct skl_pipeline {
+ struct skl_pipe *pipe;
+ struct list_head node;
+};
+
+struct skl_dapm_path_list {
+ struct snd_soc_dapm_path *dapm_path;
+ struct list_head node;
+};
+
int skl_create_pipeline(struct skl_sst *ctx, struct skl_pipe *pipe);
int skl_run_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);
@@ -48,6 +48,13 @@
#define AZX_REG_VS_SDXEFIFOS_XBASE 0x1094
#define AZX_REG_VS_SDXEFIFOS_XINTERVAL 0x20
+struct skl_dsp_resource {
+ u32 max_mcps;
+ u32 max_mem;
+ u32 mcps;
+ u32 mem;
+};
+
struct skl {
struct hdac_ext_bus ebus;
struct pci_dev *pci;
@@ -57,6 +64,10 @@ struct skl {
void __iomem *nhlt; /* nhlt ptr */
struct skl_sst *skl_sst; /* sst skl ctx */
+
+ struct skl_dsp_resource resource;
+ struct list_head ppl_list;
+ struct list_head dapm_path_list;
};
#define skl_to_ebus(s) (&(s)->ebus)