mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-09-19 17:49:59 +02:00
538 lines
16 KiB
Text
538 lines
16 KiB
Text
%{
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/*
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* Advanced Linux Sound Architecture Control Program
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* Copyright (c) 1998 by Perex, APS, University of South Bohemia
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include "alsactl.h"
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#include <stdarg.h>
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/* insgus_lexer.c */
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int yylex( void );
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extern char cfgfile[];
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extern int linecount;
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extern FILE *yyin;
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/* local functions */
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static void yyerror( char *, ... );
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static void select_soundcard( char *name );
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static void select_mixer( char *name );
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static void select_pcm( char *name );
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static void select_rawmidi( char *name );
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static void select_mixer_channel( char *name );
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static void set_mixer_channel( int left, int right );
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static void set_mixer_channel_flags( unsigned int mask, unsigned int flags );
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static void set_mixer_channel_end( void );
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#define SWITCH_CONTROL 0
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#define SWITCH_MIXER 1
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#define SWITCH_PCM 2
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#define SWITCH_RAWMIDI 3
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static void select_control_switch( char *name );
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static void select_mixer_switch( char *name );
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static void select_pcm_playback_switch( char *name );
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static void select_pcm_record_switch( char *name );
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static void select_rawmidi_output_switch( char *name );
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static void select_rawmidi_input_switch( char *name );
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static void set_switch_boolean( int val );
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static void set_switch_integer( int val );
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static void set_switch_iec958ocs_begin( int end );
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static void set_switch_iec958ocs( int idx, unsigned short val, unsigned short mask );
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/* local variables */
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static struct soundcard *Xsoundcard = NULL;
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static struct mixer *Xmixer = NULL;
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static struct pcm *Xpcm = NULL;
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static struct rawmidi *Xrawmidi = NULL;
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static struct mixer_channel *Xmixerchannel = NULL;
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static unsigned int Xmixerchannelflags = 0;
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static int Xswitchtype = SWITCH_CONTROL;
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static int *Xswitchchange = NULL;
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static void *Xswitch = NULL;
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static unsigned int Xswitchiec958ocs = 0;
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static unsigned short Xswitchiec958ocs1[16];
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%}
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%start lines
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%union {
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int b_value;
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int i_value;
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char *s_value;
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unsigned char *a_value;
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};
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%token <b_value> L_TRUE L_FALSE
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%token <i_value> L_INTEGER
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%token <s_value> L_STRING
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%token <a_value> L_BYTEARRAY
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/* types */
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%token L_INTEGER L_STRING
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/* boolean */
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%token L_FALSE L_TRUE
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/* misc */
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%token L_DOUBLE1
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/* other keywords */
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%token L_SOUNDCARD L_MIXER L_CHANNEL L_STEREO L_MONO L_SWITCH L_RAWDATA
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%token L_CONTROL L_PCM L_RAWMIDI L_PLAYBACK L_RECORD L_OUTPUT L_INPUT
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%token L_IEC958OCS L_3D L_RESET L_USER L_VALID L_DATA L_PROTECT L_PRE2
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%token L_FSLOCK L_TYPE L_GSTATUS L_ENABLE L_DISABLE L_MUTE L_SWOUT L_SWIN
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%type <b_value> boolean
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%type <i_value> integer
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%type <s_value> string
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%type <a_value> bytearray
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%%
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lines : line
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| lines line
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;
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line : L_SOUNDCARD '(' string { select_soundcard( $3 ); } L_DOUBLE1 soundcards { select_soundcard( NULL ); } '}'
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| error { yyerror( "unknown keyword in top level" ); }
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;
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soundcards : soundcard
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| soundcards soundcard
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;
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soundcard : L_CONTROL '{' controls '}'
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| L_MIXER '(' string { select_mixer( $3 ); } L_DOUBLE1 mixers { select_mixer( NULL ); } '}'
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| L_PCM '(' string { select_pcm( $3 ); } L_DOUBLE1 pcms { select_pcm( NULL ); } '}'
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| L_RAWMIDI '(' string { select_rawmidi( $3 ); } L_DOUBLE1 rawmidis { select_rawmidi( NULL ); } '}'
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| error { yyerror( "unknown keyword in soundcard{} level" ); }
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;
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controls : control
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| controls control
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;
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control : L_SWITCH '(' string { select_control_switch( $3 ); } ',' switches ')' { select_control_switch( NULL ); }
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| error { yyerror( "unknown keyword in control{} level" ); }
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;
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mixers : mixer
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| mixers mixer
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;
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mixer : L_CHANNEL '(' string { select_mixer_channel( $3 ); } ',' mvalues ')' { set_mixer_channel_end(); select_mixer_channel( NULL ); }
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| L_SWITCH '(' string { select_mixer_switch( $3 ); } ',' switches ')' { select_mixer_switch( NULL ); }
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| error { yyerror( "unknown keyword in mixer{} level" ); }
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;
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mvalues : mvalue
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| mvalues mvalue
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;
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mvalue : L_STEREO '(' xmchls ',' xmchrs ')'
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| L_MONO '(' xmchs ')'
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| error { yyerror( "unknown keyword in mixer channel{} level" ); }
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;
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xmchls : xmchl
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| xmchls xmchl
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;
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xmchl : L_INTEGER { set_mixer_channel( $1, -1 ); }
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| L_MUTE { set_mixer_channel_flags( SND_MIXER_FLG_MUTE_LEFT, SND_MIXER_FLG_MUTE_LEFT ); }
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| L_RECORD { set_mixer_channel_flags( SND_MIXER_FLG_RECORD_LEFT, SND_MIXER_FLG_RECORD_LEFT ); }
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| L_SWOUT { set_mixer_channel_flags( SND_MIXER_FLG_LTOR_OUT, SND_MIXER_FLG_LTOR_OUT ); }
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| L_SWIN { set_mixer_channel_flags( SND_MIXER_FLG_LTOR_IN, SND_MIXER_FLG_LTOR_IN ); }
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| error { yyerror( "unknown keyword in left channel section..." ); }
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;
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xmchrs : xmchr
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| xmchrs xmchr
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;
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xmchr : L_INTEGER { set_mixer_channel( -1, $1 ); }
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| L_MUTE { set_mixer_channel_flags( SND_MIXER_FLG_MUTE_RIGHT, SND_MIXER_FLG_MUTE_RIGHT ); }
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| L_RECORD { set_mixer_channel_flags( SND_MIXER_FLG_RECORD_RIGHT, SND_MIXER_FLG_RECORD_RIGHT ); }
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| L_SWOUT { set_mixer_channel_flags( SND_MIXER_FLG_RTOL_OUT, SND_MIXER_FLG_RTOL_OUT ); }
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| L_SWIN { set_mixer_channel_flags( SND_MIXER_FLG_RTOL_IN, SND_MIXER_FLG_RTOL_IN ); }
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| error { yyerror( "unknown keyword in right channel section..." ); }
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;
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xmchs : xmch
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| xmchs xmch
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;
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xmch : L_INTEGER { set_mixer_channel( $1, $1 ); }
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| L_MUTE { set_mixer_channel_flags( SND_MIXER_FLG_MUTE, SND_MIXER_FLG_MUTE ); }
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| L_RECORD { set_mixer_channel_flags( SND_MIXER_FLG_RECORD, SND_MIXER_FLG_RECORD ); }
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| error { yyerror( "unknown keyword in mono channel section..." ); }
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;
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pcms : pcm
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| pcms pcm
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;
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pcm : L_PLAYBACK '{' playbacks '}'
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| L_RECORD '{' records '}'
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| error { yyerror( "unknown keyword in pcm{} section" ); }
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;
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playbacks : playback
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| playbacks playback
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;
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playback : L_SWITCH '(' string { select_pcm_playback_switch( $3 ); } ',' switches ')' { select_pcm_playback_switch( NULL ); }
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| error { yyerror( "unknown keyword in playback{} section" ); }
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;
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records : record
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| records record
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;
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record : L_SWITCH '(' string { select_pcm_record_switch( $3 ); } ',' switches ')' { select_pcm_record_switch( NULL ); }
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| error { yyerror( "unknown keyword in record{} section" ); }
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;
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rawmidis : rawmidi
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| rawmidis rawmidi
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;
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rawmidi : L_INPUT '{' inputs '}'
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| L_OUTPUT '{' outputs '}'
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;
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inputs : input
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| inputs input
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;
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input : L_SWITCH '(' string { select_rawmidi_input_switch( $3 ); } ',' switches ')' { select_rawmidi_input_switch( NULL ); }
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| error { yyerror( "unknown keyword in input{} section" ); }
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;
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outputs : output
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| outputs output
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;
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output : L_SWITCH '(' string { select_rawmidi_output_switch( $3 ); } ',' switches ')' { select_rawmidi_output_switch( NULL ); }
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| error { yyerror( "unknown keyword in output{} section" ); }
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;
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switches : switch
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| switches switch
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;
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switch : L_TRUE { set_switch_boolean( 1 ); }
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| L_FALSE { set_switch_boolean( 0 ); }
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| L_INTEGER { set_switch_integer( $1 ); }
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| L_IEC958OCS '(' { set_switch_iec958ocs_begin( 0 ); } iec958ocs { set_switch_iec958ocs_begin( 1 ); } ')'
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| error { yyerror( "unknown keyword in switch() data parameter" ); }
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;
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iec958ocs : iec958ocs1
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| iec958ocs iec958ocs1
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;
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iec958ocs1 : L_ENABLE { set_switch_iec958ocs( 0, 1, 0 ); }
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| L_DISABLE { set_switch_iec958ocs( 0, 0, 0 ); }
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| L_3D { set_switch_iec958ocs( 4, 0x2000, ~0x2000 ); }
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| L_RESET { set_switch_iec958ocs( 4, 0x0040, ~0x0040 ); }
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| L_USER { set_switch_iec958ocs( 4, 0x0020, ~0x0020 ); }
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| L_VALID { set_switch_iec958ocs( 4, 0x0010, ~0x0010 ); }
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| L_DATA { set_switch_iec958ocs( 5, 0x0002, ~0x0002 ); }
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| L_PROTECT { set_switch_iec958ocs( 5, 0x0004, ~0x0004 ); }
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| L_PRE2 { set_switch_iec958ocs( 5, 0x0008, ~0x0018 ); }
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| L_FSLOCK { set_switch_iec958ocs( 5, 0x0020, ~0x0020 ); }
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| L_TYPE '(' integer ')' { set_switch_iec958ocs( 5, ($3 & 0x7f) << 6, ~(0x7f<<6) ); }
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| L_GSTATUS { set_switch_iec958ocs( 5, 0x2000, ~0x2000 ); }
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| error { yyerror( "unknown keyword in iec958ocs1() arguments" ); }
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;
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boolean : L_TRUE { $$ = 1; }
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| L_FALSE { $$ = 0; }
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| error { yyerror( "unknown boolean value" ); }
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;
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integer : L_INTEGER { $$ = $1; }
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| error { yyerror( "unknown integer value" ); }
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;
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string : L_STRING { $$ = $1; }
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| error { yyerror( "unknown string value" ); }
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;
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bytearray : L_BYTEARRAY { $$ = $1; }
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| error { yyerror( "unknown byte array value" ); }
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;
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%%
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static void yyerror( char *string, ... )
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{
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char errstr[ 1024 ];
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va_list vars;
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va_start( vars, string );
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vsprintf( errstr, string, vars );
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va_end( vars );
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error( "Error in configuration file '%s' (line %i): %s", cfgfile, linecount + 1, errstr );
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exit( 1 );
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}
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static void select_soundcard( char *name )
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{
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struct soundcard *soundcard;
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if ( !name ) { Xsoundcard = NULL; return; }
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for ( soundcard = soundcards; soundcard; soundcard = soundcard -> next )
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if ( !strcmp( soundcard -> control.hwinfo.id, name ) ) {
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Xsoundcard = soundcard;
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free( name );
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return;
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}
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yyerror( "Cannot find soundcard '%s'...", name );
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free( name );
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}
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static void select_mixer( char *name )
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{
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struct mixer *mixer;
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if ( !name ) { Xmixer = NULL; return; }
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for ( mixer = Xsoundcard -> mixers; mixer; mixer = mixer -> next )
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if ( !strcmp( mixer -> info.name, name ) ) {
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Xmixer = mixer;
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free( name );
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return;
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}
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yyerror( "Cannot find mixer '%s' for soundcard '%s'...", name, Xsoundcard -> control.hwinfo.id );
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free( name );
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}
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static void select_pcm( char *name )
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{
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struct pcm *pcm;
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if ( !name ) { Xpcm = NULL; return; }
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for ( pcm = Xsoundcard -> pcms; pcm; pcm = pcm -> next )
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if ( !strcmp( pcm -> info.name, name ) ) {
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Xpcm = pcm;
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free( name );
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return;
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}
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yyerror( "Cannot find pcm device '%s' for soundcard '%s'...", name, Xsoundcard -> control.hwinfo.id );
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free( name );
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}
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static void select_rawmidi( char *name )
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{
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struct rawmidi *rawmidi;
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if ( !name ) { Xrawmidi = NULL; return; }
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for ( rawmidi = Xsoundcard -> rawmidis; rawmidi; rawmidi = rawmidi -> next )
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if ( !strcmp( rawmidi -> info.name, name ) ) {
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Xrawmidi = rawmidi;
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free( name );
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return;
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}
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yyerror( "Cannot find rawmidi device '%s' for soundcard '%s'...", name, Xsoundcard -> control.hwinfo.id );
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free( name );
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}
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static void select_mixer_channel( char *name )
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{
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struct mixer_channel *channel;
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if ( !name ) { Xmixerchannel = NULL; return; }
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for ( channel = Xmixer -> channels; channel; channel = channel -> next )
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if ( !strcmp( channel -> i.name, name ) ) {
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Xmixerchannel = channel;
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Xmixerchannelflags = Xmixerchannel -> c.flags &
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~(SND_MIXER_FLG_RECORD |
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SND_MIXER_FLG_MUTE |
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SND_MIXER_FLG_SWITCH_OUT |
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SND_MIXER_FLG_SWITCH_IN |
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SND_MIXER_FLG_DECIBEL |
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SND_MIXER_FLG_FORCE);
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free( name );
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return;
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}
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yyerror( "Cannot find mixer channel '%s'...", name );
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free( name );
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}
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static void set_mixer_channel( int left, int right )
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{
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if ( left >= 0 ) {
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if ( Xmixerchannel -> i.min > left || Xmixerchannel -> i.max < left )
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yyerror( "Value out of range (%i-%i)...", Xmixerchannel -> i.min, Xmixerchannel -> i.max );
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if ( Xmixerchannel -> c.left != left )
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Xmixerchannel -> change = 1;
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Xmixerchannel -> c.left = left;
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}
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if ( right >= 0 ) {
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if ( Xmixerchannel -> i.min > right || Xmixerchannel -> i.max < right )
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yyerror( "Value out of range (%i-%i)...", Xmixerchannel -> i.min, Xmixerchannel -> i.max );
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if ( Xmixerchannel -> c.right != right )
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Xmixerchannel -> change = 1;
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Xmixerchannel -> c.right = right;
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}
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}
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static void set_mixer_channel_flags( unsigned int mask, unsigned int flags )
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{
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Xmixerchannelflags &= ~mask;
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Xmixerchannelflags |= flags;
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}
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static void set_mixer_channel_end( void )
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{
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if ( Xmixerchannel -> c.flags != Xmixerchannelflags ) {
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Xmixerchannel -> change = 1;
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}
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Xmixerchannel -> c.flags = Xmixerchannelflags;
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}
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#define FIND_SWITCH( xtype, first, name, err ) \
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if ( !name ) { Xswitch = Xswitchchange = NULL; return; } \
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for ( sw = first; sw; sw = sw -> next ) { \
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if ( !strcmp( sw -> s.name, name ) ) { \
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Xswitchtype = xtype; \
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Xswitchchange = &sw -> change; \
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Xswitch = (void *)&sw -> s; \
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free( name ); \
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return; \
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} \
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} \
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yyerror( "Cannot find " err " switch '%s'...", name ); \
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free( name );
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static void select_control_switch( char *name )
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{
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struct ctl_switch *sw;
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FIND_SWITCH( SWITCH_CONTROL, Xsoundcard -> control.switches, name, "control" );
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}
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static void select_mixer_switch( char *name )
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{
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struct mixer_switch *sw;
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FIND_SWITCH( SWITCH_MIXER, Xmixer -> switches, name, "mixer" );
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}
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static void select_pcm_playback_switch( char *name )
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{
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struct pcm_switch *sw;
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FIND_SWITCH( SWITCH_PCM, Xpcm -> pswitches, name, "pcm playback" );
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}
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static void select_pcm_record_switch( char *name )
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{
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struct pcm_switch *sw;
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FIND_SWITCH( SWITCH_PCM, Xpcm -> rswitches, name, "pcm record" );
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}
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static void select_rawmidi_output_switch( char *name )
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{
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struct rawmidi_switch *sw;
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FIND_SWITCH( SWITCH_RAWMIDI, Xrawmidi -> oswitches, name, "rawmidi output" );
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}
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static void select_rawmidi_input_switch( char *name )
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{
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struct rawmidi_switch *sw;
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FIND_SWITCH( SWITCH_RAWMIDI, Xrawmidi -> iswitches, name, "rawmidi input" );
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}
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static void set_switch_boolean( int val )
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{
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/* ok.. this is a little bit wrong, but at these times are all switches same */
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snd_ctl_switch_t *sw = (snd_ctl_switch_t *)Xswitch;
|
|
unsigned int xx;
|
|
|
|
if ( sw -> type != SND_CTL_SW_TYPE_BOOLEAN )
|
|
yyerror( "Switch '%s' isn't boolean type...", sw -> name );
|
|
xx = val & 1;
|
|
if ( memcmp( &sw -> value, &xx, sizeof(xx) ) ) *Xswitchchange = 1;
|
|
memcpy( &sw -> value, &xx, sizeof(xx) );
|
|
}
|
|
|
|
static void set_switch_integer( int val )
|
|
{
|
|
/* ok.. this is a little bit wrong, but at these times are all switches same */
|
|
snd_ctl_switch_t *sw = (snd_ctl_switch_t *)Xswitch;
|
|
unsigned int xx;
|
|
|
|
if ( sw -> type != SND_CTL_SW_TYPE_BYTE &&
|
|
sw -> type != SND_CTL_SW_TYPE_WORD &&
|
|
sw -> type != SND_CTL_SW_TYPE_DWORD )
|
|
yyerror( "Switch '%s' isn't integer type...", sw -> name );
|
|
if ( val < sw -> low || val > sw -> high )
|
|
yyerror( "Value for switch '%s' out of range (%i-%i)...\n", sw -> name, sw -> low, sw -> high );
|
|
xx = val;
|
|
if ( memcmp( &sw -> value, &xx, sizeof(xx) ) ) *Xswitchchange = 1;
|
|
memcpy( &sw -> value, &xx, sizeof(xx) );
|
|
}
|
|
|
|
static void set_switch_iec958ocs_begin( int end )
|
|
{
|
|
/* ok.. this is a little bit wrong, but at these times are all switches same */
|
|
snd_ctl_switch_t *sw = (snd_ctl_switch_t *)Xswitch;
|
|
|
|
if ( !end ) {
|
|
if ( Xswitchiec958ocs != sw -> value.enable ) {
|
|
sw -> value.enable = Xswitchiec958ocs;
|
|
*Xswitchchange = 1;
|
|
}
|
|
if ( Xswitchiec958ocs1[4] != sw -> value.data16[4] ) {
|
|
sw -> value.data16[4] = Xswitchiec958ocs1[4];
|
|
*Xswitchchange = 1;
|
|
}
|
|
if ( Xswitchiec958ocs1[5] != sw -> value.data16[5] ) {
|
|
sw -> value.data16[5] = Xswitchiec958ocs1[5];
|
|
*Xswitchchange = 1;
|
|
}
|
|
return;
|
|
}
|
|
if ( Xswitchtype != SWITCH_MIXER || sw -> type != SND_MIXER_SW_TYPE_BOOLEAN ||
|
|
strcmp( sw -> name, SND_MIXER_SW_IEC958OUT ) )
|
|
yyerror( "Switch '%s' cannot store IEC958 information for Cirrus Logic chips...", sw -> name );
|
|
if ( sw -> value.data32[1] != (('C'<<8)|'S') )
|
|
yyerror( "Switch '%s' doesn't have Cirrus Logic signature!!!", sw -> name );
|
|
Xswitchiec958ocs = 0;
|
|
Xswitchiec958ocs1[4] = 0x0000;
|
|
Xswitchiec958ocs1[5] = 0x0000;
|
|
}
|
|
|
|
static void set_switch_iec958ocs( int idx, unsigned short val, unsigned short mask )
|
|
{
|
|
if ( idx == 0 ) {
|
|
Xswitchiec958ocs = val ? 1 : 0;
|
|
return;
|
|
}
|
|
Xswitchiec958ocs1[ idx ] &= ~mask;
|
|
Xswitchiec958ocs1[ idx ] |= val;
|
|
}
|