add support for Digium's High Performance Echo Canceller

rework the top-level Makefile so kernel 2.6 modules are built by a dedicated Makefile


git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.2@2076 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 20 insertions, 11 deletions

diff --git a/sec.h b/sec.h
index d4e98ce..738f6b5 100644
--- a/sec.h
+++ b/sec.h
@@ -70,7 +70,7 @@
 
 #define NONUPDATE_DWELL_TIME	600 	/* 600 samples, or 75ms */
 
-typedef struct
+struct echo_can_state
 {
     int tx_power;
     int rx_power;
@@ -98,11 +98,20 @@ typedef struct
     int32_t latest_correction;  /* Indication of the magnitude of the latest
     				   adaption, or a code to indicate why adaption
 				   was skipped, for test purposes */
-} echo_can_state_t;
+};
 
-static echo_can_state_t *echo_can_create(int len, int adaption_mode);
-static void echo_can_free(echo_can_state_t *ec);
-static int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx);
+static void echo_can_init(void)
+{
+	printk("Zaptel Echo Canceller: STEVE%s\n", ZAPTEL_ECHO_AGGRESSIVE);
+}
+
+static void echo_can_shutdown(void)
+{
+}
+
+static struct echo_can_state *echo_can_create(int len, int adaption_mode);
+static void echo_can_free(struct echo_can_state *ec);
+static int16_t echo_can_update(struct echo_can_state *ec, int16_t tx, int16_t rx);
 
 /* Original parameters : 
 #define MIN_TX_POWER_FOR_ADAPTION   256
@@ -117,12 +126,12 @@ static int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx);
 #define MIN_RX_POWER_FOR_ADAPTION   64
 */
 
-static inline echo_can_state_t *echo_can_create(int len, int adaption_mode)
+static inline struct echo_can_state *echo_can_create(int len, int adaption_mode)
 {
-    echo_can_state_t *ec;
+    struct echo_can_state *ec;
     void *ptr;
     
-    ptr = ec = (echo_can_state_t *) MALLOC(sizeof(*ec) + len * sizeof(int32_t) +
+    ptr = ec = (struct echo_can_state *) MALLOC(sizeof(*ec) + len * sizeof(int32_t) +
 						   len * 3 * sizeof(int16_t));
     if (ec == NULL)
     	return  NULL;
@@ -141,13 +150,13 @@ static inline echo_can_state_t *echo_can_create(int len, int adaption_mode)
 }
 /*- End of function --------------------------------------------------------*/
 
-static inline void echo_can_free(echo_can_state_t *ec)
+static inline void echo_can_free(struct echo_can_state *ec)
 {
     FREE(ec);
 }
 /*- End of function --------------------------------------------------------*/
 
-static inline int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t rx)
+static inline int16_t echo_can_update(struct echo_can_state *ec, int16_t tx, int16_t rx)
 {
     int32_t echo_value;
     int clean_rx;
@@ -268,7 +277,7 @@ static inline int16_t echo_can_update(echo_can_state_t *ec, int16_t tx, int16_t
 }
 /*- End of function --------------------------------------------------------*/
 
-static inline int echo_can_traintap(echo_can_state_t *ec, int pos, short val)
+static inline int echo_can_traintap(struct echo_can_state *ec, int pos, short val)
 {
 	/* Reset hang counter to avoid adjustments after
 	   initial forced training */