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/******************************************************************************
 *
 *              telephony.h
 *
 *              Basic Linux Telephony Interface
 *
 *              (c) Copyright 1999-2001 Quicknet Technologies, Inc.
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 *
 *    Authors:       Ed Okerson, <eokerson@quicknet.net>
 *                   Greg Herlein, <gherlein@quicknet.net>
 *
 *    Contributors:  Alan Cox, <alan@redhat.com>
 *                   David W. Erhart, <derhart@quicknet.net>
 *
 * IN NO EVENT SHALL QUICKNET TECHNOLOGIES, INC. BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF QUICKNET
 * TECHNOLOGIES, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * QUICKNET TECHNOLOGIES, INC. SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND QUICKNET TECHNOLOGIES, INC. HAS NO OBLIGATION
 * TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 *
 * Version:       $Revision: 1.1 $
 *
 * $Id: telephony.h,v 1.1 2004-01-28 15:26:48 giacomo Exp $
 *
 *****************************************************************************/


#ifndef TELEPHONY_H
#define TELEPHONY_H

#define TELEPHONY_VERSION 3013

#define PHONE_VENDOR_IXJ          1
#define PHONE_VENDOR_QUICKNET     PHONE_VENDOR_IXJ
#define PHONE_VENDOR_VOICETRONIX  2
#define PHONE_VENDOR_ACULAB       3
#define PHONE_VENDOR_DIGI         4
#define PHONE_VENDOR_FRANKLIN     5

/******************************************************************************
 *  Vendor Summary Information Area
 *
 *  Quicknet Technologies, Inc. - makes low density analog telephony cards
 *    with audio compression, POTS and PSTN interfaces (www.quicknet.net)
 *
 *  (other vendors following this API shuld add a short description of
 *  the telephony products they support under Linux)
 *
 *****************************************************************************/

#define QTI_PHONEJACK           100
#define QTI_LINEJACK            300
#define QTI_PHONEJACK_LITE      400
#define QTI_PHONEJACK_PCI       500
#define QTI_PHONECARD           600

/******************************************************************************
*
* The capabilities ioctls can inform you of the capabilities of each phone
* device installed in your system.  The PHONECTL_CAPABILITIES ioctl
* returns an integer value indicating the number of capabilities the  
* device has.  The PHONECTL_CAPABILITIES_LIST will fill an array of
* capability structs with all of its capabilities.  The
* PHONECTL_CAPABILITIES_CHECK takes a single capability struct and returns
* a TRUE if the device has that capability, otherwise it returns false.
*
******************************************************************************/

typedef enum {
        vendor = 0,
        device,
        port,
        codec,
        dsp
} phone_cap;

struct phone_capability {
        char desc[80];
        phone_cap captype;
        int cap;
        int handle;
};

typedef enum {
        pots = 0,
        pstn,
        handset,
        speaker
} phone_ports;

#define PHONE_CAPABILITIES              _IO  ('q', 0x80)
#define PHONE_CAPABILITIES_LIST         _IOR ('q', 0x81, struct phone_capability *)
#define PHONE_CAPABILITIES_CHECK        _IOW ('q', 0x82, struct phone_capability *)

typedef struct {
        char month[3];
        char day[3];
        char hour[3];
        char min[3];
        int numlen;
        char number[11];
        int namelen;
        char name[80];
} PHONE_CID;
 
#define PHONE_RING                      _IO  ('q', 0x83)
#define PHONE_HOOKSTATE                 _IO  ('q', 0x84)
#define PHONE_MAXRINGS                  _IOW ('q', 0x85, char)
#define PHONE_RING_CADENCE              _IOW ('q', 0x86, short)
#define OLD_PHONE_RING_START            _IO  ('q', 0x87)
#define PHONE_RING_START                _IOW ('q', 0x87, PHONE_CID *)
#define PHONE_RING_STOP                 _IO  ('q', 0x88)

#define USA_RING_CADENCE         0xC0C0

#define PHONE_REC_CODEC                 _IOW ('q', 0x89, int)
#define PHONE_REC_START                 _IO  ('q', 0x8A)
#define PHONE_REC_STOP                  _IO  ('q', 0x8B)
#define PHONE_REC_DEPTH                 _IOW ('q', 0x8C, int)
#define PHONE_FRAME                     _IOW ('q', 0x8D, int)
#define PHONE_REC_VOLUME                _IOW ('q', 0x8E, int)
#define PHONE_REC_VOLUME_LINEAR         _IOW ('q', 0xDB, int)
#define PHONE_REC_LEVEL                 _IO  ('q', 0x8F)

#define PHONE_PLAY_CODEC                _IOW ('q', 0x90, int)
#define PHONE_PLAY_START                _IO  ('q', 0x91)
#define PHONE_PLAY_STOP                 _IO  ('q', 0x92)
#define PHONE_PLAY_DEPTH                _IOW ('q', 0x93, int)
#define PHONE_PLAY_VOLUME               _IOW ('q', 0x94, int)
#define PHONE_PLAY_VOLUME_LINEAR        _IOW ('q', 0xDC, int)
#define PHONE_PLAY_LEVEL                _IO  ('q', 0x95)
#define PHONE_DTMF_READY                _IOR ('q', 0x96, int)
#define PHONE_GET_DTMF                  _IOR ('q', 0x97, int)
#define PHONE_GET_DTMF_ASCII            _IOR ('q', 0x98, int)
#define PHONE_DTMF_OOB                  _IOW ('q', 0x99, int)
#define PHONE_EXCEPTION                 _IOR ('q', 0x9A, int)
#define PHONE_PLAY_TONE                 _IOW ('q', 0x9B, char)
#define PHONE_SET_TONE_ON_TIME          _IOW ('q', 0x9C, int)
#define PHONE_SET_TONE_OFF_TIME         _IOW ('q', 0x9D, int)
#define PHONE_GET_TONE_ON_TIME          _IO  ('q', 0x9E)
#define PHONE_GET_TONE_OFF_TIME         _IO  ('q', 0x9F)
#define PHONE_GET_TONE_STATE            _IO  ('q', 0xA0)
#define PHONE_BUSY                      _IO  ('q', 0xA1)
#define PHONE_RINGBACK                  _IO  ('q', 0xA2)
#define PHONE_DIALTONE                  _IO  ('q', 0xA3)
#define PHONE_CPT_STOP                  _IO  ('q', 0xA4)

#define PHONE_PSTN_SET_STATE            _IOW ('q', 0xA4, int)
#define PHONE_PSTN_GET_STATE            _IO  ('q', 0xA5)

#define PSTN_ON_HOOK            0
#define PSTN_RINGING            1
#define PSTN_OFF_HOOK           2
#define PSTN_PULSE_DIAL         3

/******************************************************************************
*
* The wink duration is tunable with this ioctl.  The default wink duration  
* is 320ms.  You do not need to use this ioctl if you do not require a
* different wink duration.
*
******************************************************************************/

#define PHONE_WINK_DURATION             _IOW ('q', 0xA6, int)
#define PHONE_WINK                      _IOW ('q', 0xAA, int)

/******************************************************************************
*
*  Codec Definitions
*
******************************************************************************/

typedef enum {
        G723_63 = 1,
        G723_53 = 2,
        TS85 = 3,
        TS48 = 4,
        TS41 = 5,
        G728 = 6,
        G729 = 7,
        ULAW = 8,
        ALAW = 9,
        LINEAR16 = 10,
        LINEAR8 = 11,
        WSS = 12,
        G729B = 13
} phone_codec;

struct phone_codec_data
{
        phone_codec type;
        unsigned short buf_min, buf_opt, buf_max;
};

#define PHONE_QUERY_CODEC               _IOWR ('q', 0xA7, struct phone_codec_data *)
#define PHONE_PSTN_LINETEST             _IO ('q', 0xA8)

/******************************************************************************
*
* This controls the VAD/CNG functionality of G.723.1.  The driver will
* always pass full size frames, any unused bytes will be padded with zeros,
* and frames passed to the driver should also be padded with zeros.  The
* frame type is encoded in the least significant two bits of the first
* WORD of the frame as follows:
*
* bits 1-0      Frame Type      Data Rate               Significant Words
* 00            0               G.723.1 6.3             12
* 01            1               G.723.1 5.3             10
* 10            2               VAD/CNG                  2
* 11            3               Repeat last CNG          2 bits
*
******************************************************************************/

#define PHONE_VAD                       _IOW ('q', 0xA9, int)


/******************************************************************************
*
* The exception structure allows us to multiplex multiple events onto the
* select() exception set.  If any of these flags are set select() will
* return with a positive indication on the exception set.  The dtmf_ready
* bit indicates if there is data waiting in the DTMF buffer.  The
* hookstate bit is set if there is a change in hookstate status, it does not
* indicate the current state of the hookswitch.  The pstn_ring bit
* indicates that the DAA on a LineJACK card has detected ring voltage on
* the PSTN port.  The caller_id bit indicates that caller_id data has been
* received and is available.  The pstn_wink bit indicates that the DAA on
* the LineJACK has received a wink from the telco switch.  The f0, f1, f2
* and f3 bits indicate that the filter has been triggered by detecting the
* frequency programmed into that filter.
*
* The remaining bits should be set to zero. They will become defined over time
* for other interface cards and their needs.
*
******************************************************************************/

struct phone_except
{
        unsigned int dtmf_ready:1;
        unsigned int hookstate:1;
        unsigned int pstn_ring:1;
        unsigned int caller_id:1;
        unsigned int pstn_wink:1;
        unsigned int f0:1;
        unsigned int f1:1;
        unsigned int f2:1;
        unsigned int f3:1;
        unsigned int flash:1;
        unsigned int fc0:1;
        unsigned int fc1:1;
        unsigned int fc2:1;
        unsigned int fc3:1;
        unsigned int reserved:18;
};

union telephony_exception {
        struct phone_except bits;
        unsigned int bytes;
};


#endif          /* TELEPHONY_H */