Staging: echo: A separate oslec.h for external interface

Split out the external interface to a separate file called oslec.h .

Give the struct a name while we're at it.

Signed-off-by: Tzafrir Cohen <tzafrir@cohens.org.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 50 deletions

diff --git a/drivers/staging/echo/echo.h b/drivers/staging/echo/echo.h
index 7a91b4390f3b..5c8b5153b199 100644
--- a/drivers/staging/echo/echo.h
+++ b/drivers/staging/echo/echo.h
@@ -118,21 +118,13 @@ a minor burden.
 */
 
 #include "fir.h"
-
-/* Mask bits for the adaption mode */
-#define ECHO_CAN_USE_ADAPTION	0x01
-#define ECHO_CAN_USE_NLP	0x02
-#define ECHO_CAN_USE_CNG	0x04
-#define ECHO_CAN_USE_CLIP	0x08
-#define ECHO_CAN_USE_TX_HPF	0x10
-#define ECHO_CAN_USE_RX_HPF	0x20
-#define ECHO_CAN_DISABLE	0x40
+#include "oslec.h"
 
 /*!
     G.168 echo canceller descriptor. This defines the working state for a line
     echo canceller.
 */
-typedef struct
+struct echo_can_state
 {
 	int16_t tx,rx;
 	int16_t clean;
@@ -176,45 +168,6 @@ typedef struct
 
 	/* snapshot sample of coeffs used for development */
 	int16_t *snapshot;
-} echo_can_state_t;
-
-/*! Create a voice echo canceller context.
-    \param len The length of the canceller, in samples.
-    \return The new canceller context, or NULL if the canceller could not be created.
-*/
-echo_can_state_t *echo_can_create(int len, int adaption_mode);
-
-/*! Free a voice echo canceller context.
-    \param ec The echo canceller context.
-*/
-void echo_can_free(echo_can_state_t *ec);
-
-/*! Flush (reinitialise) a voice echo canceller context.
-    \param ec The echo canceller context.
-*/
-void echo_can_flush(echo_can_state_t *ec);
-
-/*! Set the adaption mode of a voice echo canceller context.
-    \param ec The echo canceller context.
-    \param adapt The mode.
-*/
-void echo_can_adaption_mode(echo_can_state_t *ec, int adaption_mode);
-
-void echo_can_snapshot(echo_can_state_t *ec);
-
-/*! Process a sample through a voice echo canceller.
-    \param ec The echo canceller context.
-    \param tx The transmitted audio sample.
-    \param rx The received audio sample.
-    \return The clean (echo cancelled) received sample.
-*/
-int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx);
-
-/*! Process to high pass filter the tx signal.
-    \param ec The echo canceller context.
-    \param tx The transmitted auio sample.
-    \return The HP filtered transmit sample, send this to your D/A.
-*/
-int16_t echo_can_hpf_tx(echo_can_state_t *ec, int16_t tx);
+};
 
 #endif	/* __ECHO_H */