diff options
author | Tzafrir Cohen <tzafrir@cohens.org.il> | 2008-10-12 06:03:14 +0200 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-10-22 09:56:33 -0700 |
commit | 17f8c114944de27e2fd9402fa2a75bccdac18502 (patch) | |
tree | b5751d04df5ebdaf9ffe585dc70644f862ff714f /drivers/staging/echo/echo.h | |
parent | e88bd231e4f00f050c4cf385f7cb2fde12f2a101 (diff) |
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>
Diffstat (limited to 'drivers/staging/echo/echo.h')
-rw-r--r-- | drivers/staging/echo/echo.h | 53 |
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 */ |