From f04ea3143569dbadcdd5ed96e8feed0601464156 Mon Sep 17 00:00:00 2001
From: matteo <matteo@5390a7c7-147a-4af0-8ec9-7488f05a26cb>
Date: Mon, 17 Mar 2003 18:11:45 +0000
Subject: lun mar 17 19:11:15 CET 2003

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@155 5390a7c7-147a-4af0-8ec9-7488f05a26cb
---
 zaptel.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 57 insertions(+), 2 deletions(-)

(limited to 'zaptel.h')

diff --git a/zaptel.h b/zaptel.h
index 9a2f9a3..b053cbe 100755
--- a/zaptel.h
+++ b/zaptel.h
@@ -66,7 +66,6 @@
 #define	ZT_CONFIG_CCS	 (1 << 8)	/* CCS (ISDN) instead of CAS (Robbed Bit) */
 #define	ZT_CONFIG_HDB3	 (1 << 9)	/* HDB3 instead of AMI (line coding) */
 #define	ZT_CONFIG_CRC4   (1 << 10)	/* CRC4 framing */
-
 #define ZT_CONFIG_NOTOPEN (1 << 16)
 
 /* Signalling types */
@@ -91,8 +90,13 @@
 #define ZT_SIG_HDLCFCS	((1 << 9)  | ZT_SIG_HDLCRAW)	/* HDLC with FCS calculation */
 #define ZT_SIG_HDLCNET	((1 << 10) | ZT_SIG_HDLCFCS)	/* HDLC Network */
 #define ZT_SIG_SLAVE	 (1 << 11) 					/* Slave to another channel */
+#define	ZT_SIG_SF	 (1 << 14)			/* Single Freq. tone only, no sig bits */
 #define ZT_SIG_CAS	 (1 << 15)			/* Just get bits */
 
+/* tone flag values */
+#define	ZT_REVERSE_RXTONE 1  /* reverse polarity rx tone logic */
+#define	ZT_REVERSE_TXTONE 2  /* reverse polarity tx tone logic */
+
 #define ZT_ABIT			8
 #define ZT_BBIT			4
 #define	ZT_CBIT			2
@@ -211,13 +215,26 @@ int	sync;		/* what level of sync source we are */
 typedef struct zt_chanconfig
 {
 int	chan;		/* Channel we're applying this to (0 to use name) */
-char name[40];	/* Name of channel to use */
+char name[40];		/* Name of channel to use */
 int	sigtype;	/* Signal type */
 int	deflaw;		/* Default law (ZT_LAW_DEFAULT, ZT_LAW_MULAW, or ZT_LAW_ALAW */
 int	master;		/* Master channel if sigtype is ZT_SLAVE */
 int	idlebits;	/* Idle bits (if this is a CAS channel) */
 } ZT_CHANCONFIG;
 
+typedef struct zt_sfconfig
+{
+int	chan;		/* Channel we're applying this to (0 to use name) */
+char name[40];		/* Name of channel to use */
+long	rxp1;		/* receive tone det. p1 */
+long	rxp2;		/* receive tone det. p2 */
+long	rxp3;		/* receive tone det. p3 */
+int	txtone;		/* Tx tone factor */
+int	tx_v2;		/* initial v2 value */
+int	tx_v3;		/* initial v3 value */
+int	toneflag;	/* Tone flags */
+} ZT_SFCONFIG;
+
 typedef struct zt_bufferinfo
 {
 int txbufpolicy;	/* Policy for handling receive buffers */
@@ -501,6 +518,11 @@ char dialstr[ZT_MAX_DTMF_BUF];
  */
 #define ZT_GETRXBITS _IOR (ZT_CODE, 45, int)
 
+/*
+ * Set Channel's SF Tone Configuration
+ */
+#define	ZT_SFCONFIG		_IOW (ZT_CODE, 46, struct zt_sfconfig)
+
 /*
  *  60-80 are reserved for private drivers
  *  80-85 are reserved for dynamic span stuff
@@ -796,6 +818,18 @@ struct confq {
 	int outbuf;
 };
 
+typedef struct
+{
+	long	x1;
+	long	x2;
+	long	y1;
+	long	y2;
+	long	e1;
+	long	e2;
+	int	samps;
+	int	lastdetect;
+} sf_detect_state_t;
+
 struct zt_chan {
 #ifdef CONFIG_ZAPATA_NET
 	/* Must be first */
@@ -814,6 +848,17 @@ struct zt_chan {
 	int channo;			/* Zaptel Channel number */
 	int chanpos;
 	int flags;
+	long rxp1;
+	long rxp2;
+	long rxp3;
+	int txtone;
+	int tx_v2;
+	int tx_v3;
+	int v1_1;
+	int v2_1;
+	int v3_1;
+	int toneflags;
+	sf_detect_state_t rd;
 
 	struct zt_chan *master;	/* Our Master channel (could be us) */
 	/* Next slave (if appropriate) */
@@ -1221,6 +1266,16 @@ static inline short zt_tone_nextsample(struct zt_tone_state *ts, struct zt_tone
 	return ts->v3_1 + ts->v3_2;
 }
 
+static inline short zt_txtone_nextsample(struct zt_chan *ss)
+{
+	/* follow the curves, return the sum */
+
+	ss->v1_1 = ss->v2_1;
+	ss->v2_1 = ss->v3_1;
+	ss->v3_1 = (ss->txtone * ss->v2_1 >> 15) - ss->v1_1;
+	return ss->v3_1;
+}
+
 /* These are the right functions to use.  */
 
 #define ZT_MULAW(a) (__zt_mulaw[(a)])
-- 
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