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/* Copyright 2005 Red Hat, Inc.
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 *
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 * Portions extraced from various ALSA code:
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 *  Copyright (c) by Abramo Bagnara <abramo@alsa-project.org>
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 *                   Jaroslav Kysela <perex@suse.cz>
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 *                   Takashi Iwai <tiwai@suse.de>
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 *                   Bernd Kaindl <bk@suse.de>
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 *                   Jan ONDREJ (SAL) <ondrejj@salstar.sk>
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 *
Martin Stransky 2351ac
 * This software may be freely redistributed under the terms of the GNU
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 * public license.
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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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 *
Martin Stransky 2351ac
 */
Martin Stransky 2351ac
Martin Stransky 8e69a6
/*
Martin Stransky 8e69a6
    TODO 
Martin Stransky 8e69a6
    -> external unmute table
Martin Stransky 8e69a6
*/
Martin Stransky 8e69a6
Martin Stransky 8e69a6
#define  VERSION  "0.3"
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Martin Stransky 2351ac
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <alsa/asoundlib.h>
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Martin Stransky 2351ac
#define TRUE  (1==1)
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#define FALSE (1!=1)
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Martin Stransky 2351ac
int verbose = 0;
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int help = 0;
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typedef struct _CHANNEL {
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  char name[100];
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  int play_volume;
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  int play_switch;
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  int rec_volume;
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  int rec_switch;
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  char driver[100];
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} CHANNEL;
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CHANNEL channels[] = {
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Martin Stransky 2351ac
//   channel          pl vol  pl swt  rec vol  rec swt     driver
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Martin Stransky 2351ac
  {"Master", 		75, 	1, 	0, 	0, 	""},
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  {"Front", 		75, 	1, 	0, 	0, 	""},
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  {"PCM", 		75, 	1, 	0, 	0, 	""},
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  {"PCM-2", 		75, 	1, 	0, 	0, 	""},
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  {"Synth", 		75, 	1, 	0, 	0, 	""},
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  {"CD", 		75, 	1, 	90, 	1, 	""},
Martin Stransky 6c0d91
  {"Mono", 		75,	1,	0, 	0, 	""},
Martin Stransky cac352
  {"Master Mono", 	75,	1,	0, 	0, 	""},  
Martin Stransky e5abab
  {"Speaker",	 	75,	1,	0, 	0, 	""},
Martin Stransky e5abab
  
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  // mute mic
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  {"Mic", 		0, 	0, 	0, 	0, 	""},
Martin Stransky 2351ac
Martin Stransky 2351ac
  // Trident/YMFPCI/emu10k1
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  {"Wave", 		100, 	1, 	0, 	0, 	""},
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  {"Music", 		100, 	1, 	0, 	0, 	""},
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  {"AC97", 		100, 	1, 	0, 	0, 	""},
Martin Stransky 2351ac
Martin Stransky 2351ac
  // CS4237B chipset
Martin Stransky 2351ac
  {"Master Digital", 	75, 	1, 	0, 	0, 	""},
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Martin Stransky 2351ac
  // Envy24 chips with analog outs
Martin Stransky 2351ac
  {"DAC", 		75, 	1, 	0, 	0, 	""},
Martin Stransky 2351ac
Martin Stransky 2351ac
  // Powermacs
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  {"DRC Range", 	75, 	1, 	0, 	0, 	""},
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Martin Stransky 2351ac
  // some notebooks use headphone instead of master
Martin Stransky 2351ac
  {"Headphone", 	75, 	1, 	0, 	0, 	""},
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  {"Playback", 		100, 	1, 	0, 	0, 	""},
Martin Stransky 2351ac
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  // turn off digital switches
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  {"SB Live Analog/Digital Output Jack", 0, 0, 0, 0, 	""},
Martin Stransky 923a7e
  // removed - should by set by driver
Martin Stransky 923a7e
  // {"Audigy Analog/Digital Output Jack", 0, 0, 0, 0, 	""},
Martin Stransky 2351ac
Martin Stransky 2351ac
  // Specific config for ca0106
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  {"Analog Front",	75, 	1, 	0, 	0, 	"snd-ca0106"},
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  {"Analog Rear",	75, 	1, 	0, 	0, 	"snd-ca0106"},
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  {"SPDIF Out",		 0, 	0, 	0, 	0, 	"snd-ca0106"},
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  // Specific config for snd-emu10k1
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  // Removed (#187807)
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  // {"Audigy Analog/Digital Output Jack",	0,1,0, 	0, 	"snd-emu10k1"},
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  {"IEC958 Optical Raw", 0,	0,	0, 	0, 	"snd-emu10k1"},
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  {"Tone", 		 0,	0,	0, 	0, 	"snd-emu10k1"},
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Martin Stransky cac352
  // Specific config for AC97/HDA
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  {"External Amplifier", 1,	1,	0, 	0, 	"snd-intel8x0"},
Martin Stransky cac352
  {"iSpeaker",         	75,     1,      0,      0,      "snd-hda-intel"},
Martin Stransky cac352
  {"Internal Speaker", 	75,     1,      0,      0,      "snd-hda-intel"},
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Martin Stransky fbbfc1
  // Specific config for snd-ens1371
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  {"IEC958", 		0,	0,	0, 	0, 	"snd-ens1371"} 
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};
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char * strlwr(char *a)     
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{
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  char *ret = a;
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  while (*a != '\0') {
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    if (isupper (*a))
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      *a = tolower (*a);
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    a++;
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  }
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  return ret;
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}
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CHANNEL * channel_find(const char *p_name, const char *p_driver) {
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  int i;
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  for (i = 0; i < sizeof(channels) / sizeof(channels[0]); i++)
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    if (!strcmp(channels[i].driver, p_driver) && !strcmp(channels[i].name, p_name))
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      return (channels + i);
Martin Stransky 2351ac
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  return (NULL);
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}
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int calc_volume(long min, long max, int percent)
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{
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  return ((int)(min + ((max - min) / 100.0f) * percent));
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}
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int unmute_card(int index, const char *p_driver)
Martin Stransky 2351ac
{
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  CHANNEL *p_chan;
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  long pmin, pmax;
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  long rmin, rmax;
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  int rc = 0;
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  char card[32];
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  char channel_name[500];
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  int c,vol;
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  snd_mixer_t *handle;
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  snd_mixer_selem_id_t *sid;
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  snd_mixer_elem_t *elem;
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  snd_mixer_selem_id_alloca(&sid;;
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  if(verbose) {
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    fprintf(stderr,"Unmuting %s...\n",p_driver ? p_driver : "");
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  }
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  sprintf(card, "hw:%d", index);
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  if ((rc = snd_mixer_open(&handle, 0)) < 0) {
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    if(verbose) {
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      fprintf(stderr,"%s: error file %s, line %d...\n",__FUNCTION__,__FILE__,__LINE__);
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    }
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    return rc;
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  }
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  if ((rc = snd_mixer_attach(handle, card)) < 0) {
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    if(verbose) {
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      fprintf(stderr,"%s: error file %s, line %d...\n",__FUNCTION__,__FILE__,__LINE__);
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    }
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    goto out;
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  }
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  if ((rc = snd_mixer_selem_register(handle, NULL, NULL)) < 0) {
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    if(verbose) {
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      fprintf(stderr,"%s: error file %s, line %d...\n",__FUNCTION__,__FILE__,__LINE__);
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    }
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    goto out;
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  }
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  rc = snd_mixer_load(handle);
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  if (rc < 0) {
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    if(verbose) {
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      fprintf(stderr,"%s: error file %s, line %d...\n",__FUNCTION__,__FILE__,__LINE__);
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    }
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    goto out;
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  }
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  for (elem = snd_mixer_first_elem(handle); elem;
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       elem = snd_mixer_elem_next(elem)) {
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    snd_mixer_selem_get_id(elem, sid);
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    strncpy(channel_name,snd_mixer_selem_id_get_name(sid),500);    
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    channel_name[499] = '\0';
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    p_chan = channel_find(strlwr(channel_name),p_driver);
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    if (!p_chan)
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      continue;
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    for (c = 0; c < SND_MIXER_SCHN_LAST; c++) {
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      if (snd_mixer_selem_has_capture_channel(elem, c)) {
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        if (snd_mixer_selem_has_capture_switch(elem)) {
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          snd_mixer_selem_set_capture_switch(elem, c, p_chan->rec_switch);
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	  if(verbose) {
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             fprintf(stderr,"Cap. Switch %s(%d) to %d\n",p_chan->name,c,p_chan->rec_switch);
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          }
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	}
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        if (snd_mixer_selem_has_capture_volume(elem)) {
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          snd_mixer_selem_get_capture_volume_range(elem, &rmin, &rmax);
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	  vol = calc_volume(rmin, rmax,p_chan->rec_volume);
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          snd_mixer_selem_set_capture_volume(elem, c, vol);
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	  if(verbose) {
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             fprintf(stderr,"Cap. Volume %s(%d) to %d\n",p_chan->name,c,vol);
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          }	
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        }
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      }
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      if (snd_mixer_selem_has_playback_channel(elem, c)) {
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        if (snd_mixer_selem_has_playback_switch(elem)) {
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          snd_mixer_selem_set_playback_switch(elem, c, p_chan->play_switch);
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	  if(verbose) {
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             fprintf(stderr,"Play. Switch %s(%d) to %d\n",p_chan->name,c,p_chan->play_switch);
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          }
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	}
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        if (snd_mixer_selem_has_playback_volume(elem)) {
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          snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
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	  vol = calc_volume(pmin, pmax,p_chan->play_volume);
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          snd_mixer_selem_set_playback_volume(elem, c, vol);
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	  if(verbose) {
Martin Stransky 2351ac
             fprintf(stderr,"Play. Volume %s(%d) to %d\n",p_chan->name,c,vol);
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          }	             
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        }
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      }
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    }
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  }
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  return(TRUE);
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out:
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  snd_mixer_close(handle);
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  return rc;
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}
Martin Stransky 2351ac
Martin Stransky 2351ac
char * check_driver_name(char *p_name)
Martin Stransky 2351ac
{
Martin Stransky 2351ac
  char *p_tmp = strchr(p_name,'-');
Martin Stransky 2351ac
  if(p_tmp) {
Martin Stransky 2351ac
    *p_tmp = '_';
Martin Stransky 2351ac
  }    
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  return(p_name);
Martin Stransky 2351ac
}
Martin Stransky 2351ac
Martin Stransky 2351ac
#define PROC_MODULES "/proc/asound/modules"
Martin Stransky 2351ac
Martin Stransky 2351ac
static char  driver_name[100];
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Martin Stransky 2351ac
const char * get_card_driver(int index)
Martin Stransky 2351ac
{
Martin Stransky 2351ac
  FILE *f = fopen(PROC_MODULES,"r");
Martin Stransky 2351ac
  char  tmp[100];
Martin Stransky 2351ac
  int   id;
Martin Stransky 2351ac
Martin Stransky 2351ac
  if(!f)
Martin Stransky 2351ac
    return(NULL);
Martin Stransky 2351ac
Martin Stransky 2351ac
  while(fgets(tmp,100,f)) {
Martin Stransky 2351ac
    sscanf(tmp," %d %s",&id,driver_name);
Martin Stransky 2351ac
    if(id == index) {
Martin Stransky 2351ac
      return(check_driver_name(driver_name));
Martin Stransky 2351ac
    }
Martin Stransky 2351ac
  }
Martin Stransky 2351ac
 
Martin Stransky 2351ac
  return(NULL);
Martin Stransky 2351ac
}
Martin Stransky 2351ac
Martin Stransky 55ae1d
void set_volume(int volume)
Martin Stransky 55ae1d
{
Martin Stransky 55ae1d
  int i;
Martin Stransky 55ae1d
Martin Stransky 55ae1d
  for (i = 0; i < sizeof(channels) / sizeof(channels[0]); i++) {
Martin Stransky 55ae1d
    if (channels[i].play_volume > 1)
Martin Stransky 55ae1d
        channels[i].play_volume = volume;
Martin Stransky 55ae1d
  }
Martin Stransky 55ae1d
}
Martin Stransky 55ae1d
Martin Stransky 2351ac
void check_data(void)
Martin Stransky 2351ac
{
Martin Stransky 2351ac
  int i;
Martin Stransky 2351ac
Martin Stransky 2351ac
  for (i = 0; i < sizeof(channels) / sizeof(channels[0]); i++) {
Martin Stransky 2351ac
    strlwr(channels[i].name);
Martin Stransky 2351ac
    check_driver_name(channels[i].driver);
Martin Stransky 2351ac
  }
Martin Stransky 2351ac
}
Martin Stransky 2351ac
Martin Stransky 8e69a6
int get_card_device(const char *p_device)
Martin Stransky 8e69a6
{
Martin Stransky 8e69a6
  int err;
Martin Stransky 8e69a6
  snd_ctl_t *handle;
Martin Stransky 8e69a6
  snd_ctl_card_info_t *info;
Martin Stransky 8e69a6
  int card = 0;
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  snd_ctl_card_info_alloca(&info;;
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  if ((err = snd_ctl_open(&handle, "default", 0)) < 0) {
Martin Stransky 8e69a6
    fprintf(stderr,"Open error: %s\n", snd_strerror(err));
Martin Stransky 8e69a6
    return(0);
Martin Stransky 8e69a6
  }
Martin Stransky 8e69a6
  if ((err = snd_ctl_card_info(handle, info)) < 0) {
Martin Stransky 8e69a6
    fprintf(stderr,"HW info error: %s\n", snd_strerror(err));
Martin Stransky 8e69a6
    return(0);
Martin Stransky 8e69a6
  }
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  card = snd_ctl_card_info_get_card(info);
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  snd_ctl_close(handle);
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  return(card);
Martin Stransky 8e69a6
}
Martin Stransky 8e69a6
Martin Stransky 8e69a6
void usage(void)
Martin Stransky 2351ac
{
Martin Stransky 55ae1d
  printf("Alsa Unmute utility, Version %s, Copyright 2005 Red Hat, Inc.\n",VERSION);
Martin Stransky 2351ac
  printf("This software may be freely redistributed under the terms of the GNU\n");
Martin Stransky 2351ac
  printf("public license.\n\n");
Martin Stransky 2351ac
Martin Stransky 8e69a6
  printf("Usage: alsaunmute [options]\n\n");
Martin Stransky 8e69a6
  printf("  [card_number]     - sound card number. If this parameter is not given,\n");
Martin Stransky 8e69a6
  printf("                      the \"default\" sound device is unmuted.\n");
Martin Stransky 8e69a6
  printf("  [-D device]       - unmute specified alsa device (like \"default\")\n");
Martin Stransky 55ae1d
  printf("  [-v]              - verbose mode\n");
Martin Stransky ce3a06
  printf("  [-s volume]       - set this volume level instead of the default (75%%)\n");
Martin Stransky 8e69a6
  printf("                      the volume is number from 0 to 100\n");
Martin Stransky 8e69a6
  printf("  [-h]              - this help\n\n");
Martin Stransky 2351ac
  exit(0);
Martin Stransky 2351ac
}
Martin Stransky 2351ac
Martin Stransky 2351ac
/* 
Martin Stransky 2351ac
   Unmute specified card  
Martin Stransky 2351ac
   alsaunmute 0 
Martin Stransky 2351ac
*/
Martin Stransky 2351ac
int main(int argc, char **argv)
Martin Stransky 2351ac
{
Martin Stransky 2351ac
  const char *p_driver;
Martin Stransky 8e69a6
  char *p_device = "default";
Martin Stransky 8e69a6
  int index = -1;
Martin Stransky 55ae1d
  int volume = 75;
Martin Stransky 55ae1d
  int param;
Martin Stransky 55ae1d
  
Martin Stransky 8e69a6
  for(param = 1; param < argc; param++) {  
Martin Stransky 8e69a6
    if (argv[param][0] >= '0' && argv[param][0] <= '9') {
Martin Stransky 8e69a6
      index = atoi(argv[param]);
Martin Stransky 8e69a6
      continue;
Martin Stransky 8e69a6
    }
Martin Stransky 8e69a6
    if (!strcmp(argv[param],"-v")) {
Martin Stransky 55ae1d
      verbose = TRUE;
Martin Stransky 55ae1d
      continue;
Martin Stransky 55ae1d
    }
Martin Stransky 8e69a6
    if (!strcmp(argv[param],"-h") || !strcmp(argv[param],"--help")) {
Martin Stransky 8e69a6
      help = TRUE;
Martin Stransky 8e69a6
      continue;
Martin Stransky 8e69a6
    }
Martin Stransky 8e69a6
    if (param+1 < argc && !strcmp(argv[param],"-s")) {
Martin Stransky 55ae1d
      param++;
Martin Stransky 55ae1d
      volume = atoi(argv[param]);
Martin Stransky 8e69a6
      continue;
Martin Stransky 8e69a6
    }
Martin Stransky 8e69a6
    if (param+1 < argc && !strcmp(argv[param],"-D")) {
Martin Stransky 8e69a6
      param++;
Martin Stransky 8e69a6
      p_device = argv[param];
Martin Stransky 8e69a6
      continue;
Martin Stransky 55ae1d
    }
Martin Stransky 2351ac
  }
Martin Stransky 55ae1d
Martin Stransky 8e69a6
  if(help) {
Martin Stransky 8e69a6
    usage();
Martin Stransky 8e69a6
  }
Martin Stransky 8e69a6
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  if(index == -1) {
Martin Stransky 8e69a6
    if(verbose) {
Martin Stransky 8e69a6
       fprintf(stderr,"Unmuting ALSA device '%s'...\n",p_device);
Martin Stransky 8e69a6
    }
Martin Stransky 8e69a6
    index = get_card_device(p_device);
Martin Stransky 8e69a6
  }
Martin Stransky 8e69a6
  else {
Martin Stransky 8e69a6
    if(verbose) {
Martin Stransky 8e69a6
       fprintf(stderr,"Unmuting ALSA card %d...\n",index);
Martin Stransky 8e69a6
    }  
Martin Stransky 8e69a6
  }
Martin Stransky 8e69a6
Martin Stransky 8e69a6
  p_driver = get_card_driver(index);  
Martin Stransky 2351ac
  if(!p_driver) {
Martin Stransky 2351ac
    fprintf(stderr,"Wrong card index %d...\n",index);
Martin Stransky 2351ac
    return(1);  
Martin Stransky 2351ac
  } 
Martin Stransky 2351ac
Martin Stransky 2351ac
  if(verbose) {
Martin Stransky 55ae1d
    fprintf(stderr,"Card %d Driver %s Volume %d%%...\n",index,p_driver,volume);
Martin Stransky 2351ac
  }
Martin Stransky 2351ac
Martin Stransky 2351ac
  check_data();
Martin Stransky 2351ac
Martin Stransky 55ae1d
  // setting volume
Martin Stransky 55ae1d
  set_volume(volume);
Martin Stransky 55ae1d
Martin Stransky 2351ac
  // default settings for all cards
Martin Stransky 2351ac
  unmute_card(index,"");
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  // specific setting for selected card_number  
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  unmute_card(index,p_driver);
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  return (0);
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}