sthal: athletico: porting knowels sthal v1

Test: local test
Bug: 113311012
Change-Id: Ib88fcda56701c893d61e38fac454daf1a593fff4
note: The release from knowles, which contain multiple sound models
      support and detection simulate. By default it would enable simulation.

1 files changed, 75 insertions, 0 deletions

diff --git a/tunnel.h b/tunnel.h
new file mode 100644
index 0000000..c71c704
--- /dev/null
+++ b/tunnel.h
@@ -0,0 +1,75 @@
+#ifndef _TUNNEL_H_
+#define _TUNNEL_H_
+
+#if __cplusplus
+extern "C"
+{
+#endif
+
+struct ia_tunneling_hal;
+
+/**
+ * Opens up the tunnel port and sets it up to start the tunneling of data
+ *
+ * Input  - buffering size
+ *          If buffering size is non-zero, then set Non Buffering Flag
+ * Output - Handle to Tunneling HAL
+ *        - NULL on failure, non null on success
+ */
+struct ia_tunneling_hal* ia_start_tunneling(int buffering_size);
+
+/**
+ * Enable the tunneling of the data for a particular tunnel id and a source id
+ *
+ * Input  - tun_hdl - Handle to the Tunneling HAL.
+ *          src_id - Source system ID for this tunnel
+ *          tunl_mode - tunnel out in sync or async mode.
+ *          tunl_encode -tunnel encoding format.
+ *
+ * Output - Zero on success, errno on failure.
+ */
+int ia_enable_tunneling_source(struct ia_tunneling_hal *tun_hdl,
+                               unsigned int src_id,
+                               unsigned int tunl_mode,
+                               unsigned int tunl_encode);
+
+/**
+ * Disable the tunneling of the data for a particular tunnel id and a source id
+ *
+ * Input  - tun_hdl - Handle to the Tunneling HAL.
+ *          src_id - Source system ID for this tunnel
+ *          tunl_mode - tunnel out in sync or async mode.
+ *          tunl_encode -tunnel encoding format.
+ *
+ * Output - Zero on success, errno on failure.
+ */
+int ia_disable_tunneling_source(struct ia_tunneling_hal *tun_hdl,
+                               unsigned int src_id,
+                               unsigned int tunl_mode,
+                               unsigned int tunl_encode);
+
+
+/**
+ * Get the tunneled data. This data is an interleaved data from all the tunnels that were
+ * enabled.
+ *
+ * Input  - tun_hdl - Handle to the Tunneling HAL.
+ *          buf - buffer in which the data will be filled.
+ *          buf_size - Size of the buffer buf
+ * Output - Number of bytes filled into the buffer
+ */
+int ia_read_tunnel_data(struct ia_tunneling_hal *tun_hdl, void *buf, int buf_size);
+
+/**
+ * Closes tunneling port
+ *
+ * Input  - tun_hdl - Handle to the Tunneling HAL.
+ * Output - Zero on success, errno on failure.
+ */
+int ia_stop_tunneling(struct ia_tunneling_hal *tun_hdl);
+
+#if __cplusplus
+} // extern "C"
+#endif
+
+#endif