1 files changed, 132 insertions, 0 deletions
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
new file mode 100644
index 000000000000..0f89df1511dc
--- /dev/null
+++ b/include/sound/hdaudio_ext.h
@@ -0,0 +1,132 @@
+#ifndef __SOUND_HDAUDIO_EXT_H
+#define __SOUND_HDAUDIO_EXT_H
+
+#include <sound/hdaudio.h>
+
+/**
+ * hdac_ext_bus: HDAC extended bus for extended HDA caps
+ *
+ * @bus: hdac bus
+ * @num_streams: streams supported
+ * @ppcap: pp capabilities pointer
+ * @spbcap: SPIB capabilities pointer
+ * @mlcap: MultiLink capabilities pointer
+ * @gtscap: gts capabilities pointer
+ * @hlink_list: link list of HDA links
+ */
+struct hdac_ext_bus {
+	struct hdac_bus bus;
+	int num_streams;
+	int idx;
+
+	void __iomem *ppcap;
+	void __iomem *spbcap;
+	void __iomem *mlcap;
+	void __iomem *gtscap;
+
+	struct list_head hlink_list;
+};
+
+int snd_hdac_ext_bus_init(struct hdac_ext_bus *sbus, struct device *dev,
+		      const struct hdac_bus_ops *ops,
+		      const struct hdac_io_ops *io_ops);
+
+void snd_hdac_ext_bus_exit(struct hdac_ext_bus *sbus);
+int snd_hdac_ext_bus_device_init(struct hdac_ext_bus *sbus, int addr);
+void snd_hdac_ext_bus_device_exit(struct hdac_device *hdev);
+
+#define ebus_to_hbus(ebus)	(&(ebus)->bus)
+#define hbus_to_ebus(_bus) \
+	container_of(_bus, struct hdac_ext_bus, bus)
+
+int snd_hdac_ext_bus_parse_capabilities(struct hdac_ext_bus *sbus);
+void snd_hdac_ext_bus_ppcap_enable(struct hdac_ext_bus *chip, bool enable);
+void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_ext_bus *chip, bool enable);
+
+void snd_hdac_ext_stream_spbcap_enable(struct hdac_ext_bus *chip,
+				 bool enable, int index);
+
+int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_ext_bus *bus);
+struct hdac_ext_link *snd_hdac_ext_bus_get_link(struct hdac_ext_bus *bus,
+						const char *codec_name);
+
+enum hdac_ext_stream_type {
+	HDAC_EXT_STREAM_TYPE_COUPLED = 0,
+	HDAC_EXT_STREAM_TYPE_HOST,
+	HDAC_EXT_STREAM_TYPE_LINK
+};
+
+/**
+ * hdac_ext_stream: HDAC extended stream for extended HDA caps
+ *
+ * @hstream: hdac_stream
+ * @pphc_addr: processing pipe host stream pointer
+ * @pplc_addr: processing pipe link stream pointer
+ * @decoupled: stream host and link is decoupled
+ * @link_locked: link is locked
+ * @link_prepared: link is prepared
+ * link_substream: link substream
+ */
+struct hdac_ext_stream {
+	struct hdac_stream hstream;
+
+	void __iomem *pphc_addr;
+	void __iomem *pplc_addr;
+
+	bool decoupled:1;
+	bool link_locked:1;
+	bool link_prepared;
+
+	struct snd_pcm_substream *link_substream;
+};
+
+#define hdac_stream(s)		(&(s)->hstream)
+#define stream_to_hdac_ext_stream(s) \
+	container_of(s, struct hdac_ext_stream, hstream)
+
+void snd_hdac_ext_stream_init(struct hdac_ext_bus *bus,
+				struct hdac_ext_stream *stream, int idx,
+				int direction, int tag);
+int snd_hdac_ext_stream_init_all(struct hdac_ext_bus *ebus, int start_idx,
+		int num_stream, int dir);
+void snd_hdac_stream_free_all(struct hdac_ext_bus *ebus);
+void snd_hdac_link_free_all(struct hdac_ext_bus *ebus);
+struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_ext_bus *bus,
+					   struct snd_pcm_substream *substream,
+					   int type);
+void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
+void snd_hdac_ext_stream_decouple(struct hdac_ext_bus *bus,
+				struct hdac_ext_stream *azx_dev, bool decouple);
+void snd_hdac_ext_stop_streams(struct hdac_ext_bus *sbus);
+
+void snd_hdac_ext_link_stream_start(struct hdac_ext_stream *hstream);
+void snd_hdac_ext_link_stream_clear(struct hdac_ext_stream *hstream);
+void snd_hdac_ext_link_stream_reset(struct hdac_ext_stream *hstream);
+int snd_hdac_ext_link_stream_setup(struct hdac_ext_stream *stream, int fmt);
+
+struct hdac_ext_link {
+	struct hdac_bus *bus;
+	int index;
+	void __iomem *ml_addr; /* link output stream reg pointer */
+	u32 lcaps;   /* link capablities */
+	u16 lsdiid;  /* link sdi identifier */
+	struct list_head list;
+};
+
+int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link);
+int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *link);
+void snd_hdac_ext_link_set_stream_id(struct hdac_ext_link *link,
+				 int stream);
+void snd_hdac_ext_link_clear_stream_id(struct hdac_ext_link *link,
+				 int stream);
+
+/* update register macro */
+#define snd_hdac_updatel(addr, reg, mask, val)		\
+	writel(((readl(addr + reg) & ~(mask)) | (val)), \
+		addr + reg)
+
+#define snd_hdac_updatew(addr, reg, mask, val)		\
+	writew(((readw(addr + reg) & ~(mask)) | (val)), \
+		addr + reg)
+
+#endif /* __SOUND_HDAUDIO_EXT_H */