1 files changed, 168 insertions, 0 deletions

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
new file mode 100644
index 000000000000..865a141b118b
--- /dev/null
+++ b/include/sound/soc-topology.h
@@ -0,0 +1,168 @@
+/*
+ * linux/sound/soc-topology.h -- ALSA SoC Firmware Controls and DAPM
+ *
+ * Copyright (C) 2012 Texas Instruments Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
+ * algorithms, equalisers, DAIs, widgets, FE caps, BE caps, codec link caps etc.
+ */
+
+#ifndef __LINUX_SND_SOC_TPLG_H
+#define __LINUX_SND_SOC_TPLG_H
+
+#include <sound/asoc.h>
+#include <linux/list.h>
+
+struct firmware;
+struct snd_kcontrol;
+struct snd_soc_tplg_pcm_be;
+struct snd_ctl_elem_value;
+struct snd_ctl_elem_info;
+struct snd_soc_dapm_widget;
+struct snd_soc_component;
+struct snd_soc_tplg_pcm_fe;
+struct snd_soc_dapm_context;
+struct snd_soc_card;
+
+/* object scan be loaded and unloaded in groups with identfying indexes */
+#define SND_SOC_TPLG_INDEX_ALL	0	/* ID that matches all FW objects */
+
+/* dynamic object type */
+enum snd_soc_dobj_type {
+	SND_SOC_DOBJ_NONE		= 0,	/* object is not dynamic */
+	SND_SOC_DOBJ_MIXER,
+	SND_SOC_DOBJ_ENUM,
+	SND_SOC_DOBJ_BYTES,
+	SND_SOC_DOBJ_PCM,
+	SND_SOC_DOBJ_DAI_LINK,
+	SND_SOC_DOBJ_CODEC_LINK,
+	SND_SOC_DOBJ_WIDGET,
+};
+
+/* dynamic control object */
+struct snd_soc_dobj_control {
+	struct snd_kcontrol *kcontrol;
+	char **dtexts;
+	unsigned long *dvalues;
+};
+
+/* dynamic widget object */
+struct snd_soc_dobj_widget {
+	unsigned int kcontrol_enum:1;	/* this widget is an enum kcontrol */
+};
+
+/* dynamic PCM DAI object */
+struct snd_soc_dobj_pcm_dai {
+	struct snd_soc_tplg_pcm_dai *pd;
+	unsigned int count;
+};
+
+/* generic dynamic object - all dynamic objects belong to this struct */
+struct snd_soc_dobj {
+	enum snd_soc_dobj_type type;
+	unsigned int index;	/* objects can belong in different groups */
+	struct list_head list;
+	struct snd_soc_tplg_ops *ops;
+	union {
+		struct snd_soc_dobj_control control;
+		struct snd_soc_dobj_widget widget;
+		struct snd_soc_dobj_pcm_dai pcm_dai;
+	};
+	void *private; /* core does not touch this */
+};
+
+/*
+ * Kcontrol operations - used to map handlers onto firmware based controls.
+ */
+struct snd_soc_tplg_kcontrol_ops {
+	u32 id;
+	int (*get)(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol);
+	int (*put)(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol);
+	int (*info)(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo);
+};
+
+/*
+ * DAPM widget event handlers - used to map handlers onto widgets.
+ */
+struct snd_soc_tplg_widget_events {
+	u16 type;
+	int (*event_handler)(struct snd_soc_dapm_widget *w,
+			struct snd_kcontrol *k, int event);
+};
+
+/*
+ * Public API - Used by component drivers to load and unload dynamic objects
+ * and their resources.
+ */
+struct snd_soc_tplg_ops {
+
+	/* external kcontrol init - used for any driver specific init */
+	int (*control_load)(struct snd_soc_component *,
+		struct snd_kcontrol_new *, struct snd_soc_tplg_ctl_hdr *);
+	int (*control_unload)(struct snd_soc_component *,
+		struct snd_soc_dobj *);
+
+	/* external widget init - used for any driver specific init */
+	int (*widget_load)(struct snd_soc_component *,
+		struct snd_soc_dapm_widget *,
+		struct snd_soc_tplg_dapm_widget *);
+	int (*widget_unload)(struct snd_soc_component *,
+		struct snd_soc_dobj *);
+
+	/* FE - used for any driver specific init */
+	int (*pcm_dai_load)(struct snd_soc_component *,
+		struct snd_soc_tplg_pcm_dai *pcm_dai, int num_fe);
+	int (*pcm_dai_unload)(struct snd_soc_component *,
+		struct snd_soc_dobj *);
+
+	/* callback to handle vendor bespoke data */
+	int (*vendor_load)(struct snd_soc_component *,
+		struct snd_soc_tplg_hdr *);
+	int (*vendor_unload)(struct snd_soc_component *,
+		struct snd_soc_tplg_hdr *);
+
+	/* completion - called at completion of firmware loading */
+	void (*complete)(struct snd_soc_component *);
+
+	/* manifest - optional to inform component of manifest */
+	int (*manifest)(struct snd_soc_component *,
+		struct snd_soc_tplg_manifest *);
+
+	/* bespoke kcontrol handlers available for binding */
+	const struct snd_soc_tplg_kcontrol_ops *io_ops;
+	int io_ops_count;
+};
+
+/* gets a pointer to data from the firmware block header */
+static inline const void *snd_soc_tplg_get_data(struct snd_soc_tplg_hdr *hdr)
+{
+	const void *ptr = hdr;
+
+	return ptr + sizeof(*hdr);
+}
+
+/* Dynamic Object loading and removal for component drivers */
+int snd_soc_tplg_component_load(struct snd_soc_component *comp,
+	struct snd_soc_tplg_ops *ops, const struct firmware *fw,
+	u32 index);
+int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index);
+
+/* Widget removal - widgets also removed wth component API */
+void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w);
+void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
+	u32 index);
+
+/* Binds event handlers to dynamic widgets */
+int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
+	const struct snd_soc_tplg_widget_events *events, int num_events,
+	u16 event_type);
+
+#endif