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alsa-utils/amixer/amixer.c
Jaroslav Kysela b4524d72c0 Fixed a small MUX1 bug..
1999-07-31 17:24:59 +00:00

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/*
* ALSA command line mixer utility
* Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <stdarg.h>
#include <ctype.h>
#include <math.h>
#include <sys/asoundlib.h>
#include "amixer.h"
#define HELPID_HELP 1000
#define HELPID_CARD 1001
#define HELPID_DEVICE 1002
#define HELPID_QUIET 1003
#define HELPID_DEBUG 1004
#define HELPID_VERSION 1005
int quiet = 0;
int debugflag = 0;
int card;
int device;
int group_contents_is_on = 0;
struct mixer_types {
int type;
char *name;
};
struct mixer_types mixer_types[] = {
{ SND_MIXER_ETYPE_INPUT, "Input" },
{ SND_MIXER_ETYPE_OUTPUT, "Output" },
{ SND_MIXER_ETYPE_CAPTURE, "Capture" },
{ SND_MIXER_ETYPE_PLAYBACK, "Playback" },
{ SND_MIXER_ETYPE_ADC, "ADC" },
{ SND_MIXER_ETYPE_DAC, "DAC" },
{ SND_MIXER_ETYPE_SWITCH1, "Switch1" },
{ SND_MIXER_ETYPE_SWITCH2, "Switch2" },
{ SND_MIXER_ETYPE_SWITCH3, "Switch3" },
{ SND_MIXER_ETYPE_VOLUME1, "Volume1" },
{ SND_MIXER_ETYPE_VOLUME2, "Volume2" },
{ SND_MIXER_ETYPE_ACCU1, "Accumulator1" },
{ SND_MIXER_ETYPE_ACCU2, "Accumulator2" },
{ SND_MIXER_ETYPE_ACCU3, "Accumulator3" },
{ SND_MIXER_ETYPE_MUX1, "Mux1" },
{ SND_MIXER_ETYPE_MUX2, "Mux2" },
{ SND_MIXER_ETYPE_TONE_CONTROL1, "ToneControl1" },
{ SND_MIXER_ETYPE_EQUALIZER1, "Equalizer1" },
{ SND_MIXER_ETYPE_3D_EFFECT1, "3D-Effect1" },
{ SND_MIXER_ETYPE_PRE_EFFECT1, "PredefinedEffect1" },
{ -1, NULL }
};
void error(const char *fmt,...)
{
va_list va;
va_start(va, fmt);
fprintf(stderr, "amixer: ");
vfprintf(stderr, fmt, va);
fprintf(stderr, "\n");
va_end(va);
}
static void help(void)
{
printf("Usage: amixer <options> command\n");
printf("\nAvailable options:\n");
printf(" -h,--help this help\n");
printf(" -c,--card # use a card number (0-%i) or the card name, default %i\n", snd_cards() - 1, card);
printf(" -d,--device # use a device number, default %i\n", device);
printf(" -D,--debug debug mode\n");
printf(" -v,--version print version of this program\n");
printf("\nAvailable commands:\n");
printf(" info show useful information for the selected mixer\n");
printf(" groups show all mixer groups\n");
printf(" gcontents show contents of all mixer groups (default command)\n");
printf(" set G P set group contents for one mixer group\n");
printf(" get G P get group contents for one mixer group\n");
printf(" elements show all mixer elements\n");
printf(" contents show contents of all mixer elements\n");
printf(" eset E P set extended contents for one mixer element\n");
printf(" eget E P get extended contents for one mixer element\n");
}
int info(void)
{
int err;
snd_mixer_t *handle;
snd_mixer_info_t info;
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s", card, device, snd_strerror(err));
return -1;
}
if ((err = snd_mixer_info(handle, &info)) < 0) {
error("Mixer %i/%i info error: %s", card, device, snd_strerror(err));
return -1;
}
printf("Mixer '%s/%s':\n", info.id, info.name);
printf(" Elements : %i\n", info.elements);
printf(" Groups : %i\n", info.groups);
printf(" Switches : %i\n", info.switches);
printf(" Attribute : 0x%x\n", info.attrib);
snd_mixer_close(handle);
return 0;
}
static const char *element_name(const char *name)
{
static char res[25];
strncpy(res, name, 24);
res[24] = '\0';
return res;
}
static const char *element_type(int type)
{
int idx;
static char str[32];
for (idx = 0; mixer_types[idx].type >= 0; idx++)
if (type == mixer_types[idx].type)
return mixer_types[idx].name;
sprintf(str, "Type%i", type);
return str;
}
static int check_range(int val, int min, int max)
{
if (val < min)
return min;
if (val > max)
return max;
return val;
}
static int convert_range(int val, int omin, int omax, int nmin, int nmax)
{
int orange = omax - omin, nrange = nmax - nmin;
if (orange == 0)
return 0;
return rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / ((double)orange + (double)nmin));
}
static int convert_db_range(int val, int omin, int omax, int nmin, int nmax)
{
int orange = omax - omin, nrange = nmax - nmin;
int tmp;
if (orange == 0)
return 0;
tmp = rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / (double)orange + (double)nmin);
return tmp;
}
/* Fuction to convert from volume to percentage. val = volume */
static int convert_prange(int val, int min, int max)
{
int range = max - min;
int tmp;
if (range == 0)
return 0;
val -= min;
tmp = rint((double)val/(double)range * 100);
return tmp;
}
/* Function to convert from percentage to volume. val = percentage */
static int convert_prange1(int val, int min, int max)
{
int range = max - min;
int tmp;
if (range == 0)
return 0;
tmp = rint((double)range * ((double)val*.01));
tmp += min;
#if 0
printf("%i %i %i %i", val, max, min, tmp);
#endif
return tmp;
}
static const char *get_percent(int val, int min, int max)
{
static char str[32];
int p;
p = convert_prange(val, min, max);
sprintf(str, "%i [%i%%]", val, p);
return str;
}
static const char *get_percent1(int val, int min, int max, int min_dB, int max_dB)
{
static char str[32];
int p, db;
p = convert_prange(val, min, max);
db = convert_db_range(val, min, max, min_dB, max_dB);
sprintf(str, "%i [%i%%] [%i.%02idB]", val, p, db / 100, abs(db % 100));
return str;
}
static int get_volume(char **ptr, int min, int max, int min_dB, int max_dB)
{
int tmp, tmp1, tmp2;
if (**ptr == ':')
(*ptr)++;
if (**ptr == '\0' || (!isdigit(**ptr) && **ptr != '-'))
return min;
tmp = atoi(*ptr);
if (**ptr == '-')
(*ptr)++;
while (isdigit(**ptr))
(*ptr)++;
tmp1 = tmp;
tmp2 = 0;
if (**ptr == '.') {
(*ptr)++;
tmp2 = atoi(*ptr);
while (isdigit(**ptr))
(*ptr)++;
}
if (**ptr == '%') {
tmp1 = convert_prange1(tmp, min, max);
(*ptr)++;
} else if (**ptr == 'd') {
tmp1 *= 100; tmp1 += tmp2 % 100;
tmp1 = convert_range(tmp1, min_dB, max_dB, min, max);
(*ptr)++;
}
tmp1 = check_range(tmp1, min, max);
if (**ptr == ',')
(*ptr)++;
return tmp1;
}
static int get_volume_simple(char **ptr, int min, int max)
{
int tmp, tmp1, tmp2;
if (**ptr == ':')
(*ptr)++;
if (**ptr == '\0' || (!isdigit(**ptr) && **ptr != '-'))
return min;
tmp = atoi(*ptr);
if (**ptr == '-')
(*ptr)++;
while (isdigit(**ptr))
(*ptr)++;
tmp1 = tmp;
tmp2 = 0;
if (**ptr == '.') {
(*ptr)++;
tmp2 = atoi(*ptr);
while (isdigit(**ptr))
(*ptr)++;
}
if (**ptr == '%') {
tmp1 = convert_prange1(tmp, min, max);
(*ptr)++;
}
tmp1 = check_range(tmp1, min, max);
if (**ptr == ',')
(*ptr)++;
return tmp1;
}
int show_element(void *handle, snd_mixer_eid_t *eid, const char *space)
{
int err, idx;
snd_mixer_routes_t routes;
snd_mixer_eid_t *element;
bzero(&routes, sizeof(routes));
routes.eid = *eid;
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i route error: %s", card, device, snd_strerror(err));
return -1;
}
if (!routes.routes_over)
return 0;
routes.proutes = (snd_mixer_eid_t *)malloc(routes.routes_over * sizeof(snd_mixer_eid_t));
if (!routes.proutes) {
error("Not enough memory...");
return -1;
}
routes.routes_size = routes.routes_over;
routes.routes = routes.routes_over = 0;
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i group (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < routes.routes; idx++) {
element = &routes.proutes[idx];
printf("%sRoute to element '%s',%i,%s\n", space, element_name(element->name), element->index, element_type(element->type));
}
free(routes.proutes);
return 0;
}
static const char *speaker_position(int position)
{
static char str[32];
switch (position) {
case SND_MIXER_VOICE_UNUSED:
return "Unused";
case SND_MIXER_VOICE_MONO:
return "Mono";
case SND_MIXER_VOICE_LEFT:
return "Left";
case SND_MIXER_VOICE_RIGHT:
return "Right";
case SND_MIXER_VOICE_CENTER:
return "Center";
case SND_MIXER_VOICE_REAR_LEFT:
return "Rear-Left";
case SND_MIXER_VOICE_REAR_RIGHT:
return "Rear-Right";
default:
sprintf(str, "Speaker%i", position);
return str;
}
}
int show_mux1_info(void *handle, snd_mixer_element_info_t *info, const char *space)
{
int idx, idx1, err;
snd_mixer_elements_t elements;
snd_mixer_routes_t routes;
snd_mixer_eid_t *element;
printf("%sMux supports none input: %s\n", space, (info->data.mux1.attrib & SND_MIXER_MUX1_NONE) ? "YES" : "NO");
bzero(&elements, sizeof(elements));
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements error: %s", card, device, snd_strerror(err));
return -1;
}
elements.pelements = (snd_mixer_eid_t *)malloc(elements.elements_over * sizeof(snd_mixer_eid_t));
if (!elements.pelements) {
error("Not enough memory");
return -1;
}
elements.elements_size = elements.elements_over;
elements.elements_over = elements.elements = 0;
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < elements.elements; idx++) {
bzero(&routes, sizeof(routes));
routes.eid = elements.pelements[idx];
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i route error: %s", card, device, snd_strerror(err));
free(elements.pelements);
return -1;
}
if (!routes.routes_over)
continue;
routes.proutes = (snd_mixer_eid_t *)malloc(routes.routes_over * sizeof(snd_mixer_eid_t));
if (!routes.proutes) {
error("Not enough memory...");
free(elements.pelements);
return -1;
}
routes.routes_size = routes.routes_over;
routes.routes = routes.routes_over = 0;
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i group (2) error: %s", card, device, snd_strerror(err));
free(elements.pelements);
return -1;
}
for (idx1 = 0; idx1 < routes.routes; idx1++) {
element = &routes.proutes[idx1];
if (!strncmp(element->name, info->eid.name, sizeof(element->name)) &&
element->index == info->eid.index &&
element->type == info->eid.type)
printf("%sInput element '%s',%i,%s\n", space, element_name(routes.eid.name), routes.eid.index, element_type(routes.eid.type));
}
free(routes.proutes);
}
free(elements.pelements);
return 0;
}
int show_mux2_info(void *handle, snd_mixer_element_info_t *info, const char *space)
{
int idx, idx1, err;
snd_mixer_elements_t elements;
snd_mixer_routes_t routes;
snd_mixer_eid_t *element;
printf("%sMux supports none input: %s\n", space, (info->data.mux2.attrib & SND_MIXER_MUX2_NONE) ? "YES" : "NO");
bzero(&elements, sizeof(elements));
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements error: %s", card, device, snd_strerror(err));
return -1;
}
elements.pelements = (snd_mixer_eid_t *)malloc(elements.elements_over * sizeof(snd_mixer_eid_t));
if (!elements.pelements) {
error("Not enough memory");
return -1;
}
elements.elements_size = elements.elements_over;
elements.elements_over = elements.elements = 0;
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < elements.elements; idx++) {
bzero(&routes, sizeof(routes));
routes.eid = elements.pelements[idx];
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i route error: %s", card, device, snd_strerror(err));
free(elements.pelements);
return -1;
}
if (!routes.routes_over)
continue;
routes.proutes = (snd_mixer_eid_t *)malloc(routes.routes_over * sizeof(snd_mixer_eid_t));
if (!routes.proutes) {
error("Not enough memory...");
free(elements.pelements);
return -1;
}
routes.routes_size = routes.routes_over;
routes.routes = routes.routes_over = 0;
if ((err = snd_mixer_routes(handle, &routes)) < 0) {
error("Mixer %i/%i group (2) error: %s", card, device, snd_strerror(err));
free(elements.pelements);
return -1;
}
for (idx1 = 0; idx1 < routes.routes; idx1++) {
element = &routes.proutes[idx1];
if (!strncmp(element->name, info->eid.name, sizeof(element->name)) &&
element->index == info->eid.index &&
element->type == info->eid.type)
printf("%sInput element '%s',%i,%s\n", space, element_name(routes.eid.name), routes.eid.index, element_type(routes.eid.type));
}
free(routes.proutes);
}
free(elements.pelements);
return 0;
}
int show_element_info(void *handle, snd_mixer_eid_t *eid, const char *space)
{
int err, idx;
snd_mixer_element_info_t info;
if (snd_mixer_element_has_info(eid) != 1)
return 0;
bzero(&info, sizeof(info));
info.eid = *eid;
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer %i/%i info error: %s", card, device, snd_strerror(err));
return -1;
}
switch (info.eid.type) {
case SND_MIXER_ETYPE_INPUT:
case SND_MIXER_ETYPE_OUTPUT:
if (info.data.io.attrib) {
printf("%sAttributes%s\n", space,
info.data.io.attrib & SND_MIXER_EIO_DIGITAL ? " digital" : "");
}
for (idx = 0; idx < info.data.io.voices; idx++) {
if (!info.data.io.pvoices[idx].vindex) {
printf("%sVoice %i: %s\n",
space,
idx,
speaker_position(info.data.io.pvoices[idx].voice));
} else {
printf("%sVoice %i: %i\n",
space,
idx,
info.data.io.pvoices[idx].voice);
}
}
break;
case SND_MIXER_ETYPE_CAPTURE:
case SND_MIXER_ETYPE_PLAYBACK:
for (idx = 0; idx < info.data.pcm.devices; idx++) {
printf("%sPCM device %i %i\n",
space,
idx,
info.data.pcm.pdevices[idx]);
}
break;
case SND_MIXER_ETYPE_ADC:
case SND_MIXER_ETYPE_DAC:
printf("%sResolution %i-bits\n", space, info.data.converter.resolution);
break;
case SND_MIXER_ETYPE_SWITCH3:
printf("%sSwitch type is ", space);
switch (info.data.switch3.type) {
case SND_MIXER_SWITCH3_FULL_FEATURED:
printf("full featured\n");
break;
case SND_MIXER_SWITCH3_ALWAYS_DESTINATION:
printf("always destination\n");
break;
case SND_MIXER_SWITCH3_ONE_DESTINATION:
printf("one destination\n");
break;
case SND_MIXER_SWITCH3_ALWAYS_ONE_DESTINATION:
printf("always one destination\n");
break;
default:
printf("unknown %i\n", info.data.switch3.type);
}
for (idx = 0; idx < info.data.switch3.voices; idx++) {
snd_mixer_voice_t voice = info.data.switch3.pvoices[idx];
if (voice.vindex) {
printf("%sVoice %i: %i\n", space, idx, voice.voice);
} else {
printf("%sSpeaker %i: %s\n", space, idx, speaker_position(voice.voice));
}
}
break;
case SND_MIXER_ETYPE_VOLUME1:
for (idx = 0; idx < info.data.volume1.range; idx++) {
struct snd_mixer_element_volume1_range *range = &info.data.volume1.prange[idx];
printf("%sVoice %i: Min %i (%i.%02idB), Max %i (%i.%02idB)\n",
space,
idx,
range->min, range->min_dB / 100, abs(range->min_dB % 100),
range->max, range->max_dB / 100, abs(range->max_dB % 100));
}
break;
case SND_MIXER_ETYPE_ACCU1:
printf("%sAttenuation %i.%02idB\n", space,
info.data.accu1.attenuation / 100,
abs(info.data.accu1.attenuation % 100));
break;
case SND_MIXER_ETYPE_ACCU2:
printf("%sAttenuation %i.%02idB\n", space,
info.data.accu2.attenuation / 100,
abs(info.data.accu1.attenuation % 100));
break;
case SND_MIXER_ETYPE_ACCU3:
for (idx = 0; idx < info.data.accu3.range; idx++) {
struct snd_mixer_element_accu3_range *range = &info.data.accu3.prange[idx];
printf("%sVoice %i: Min %i (%i.%02idB), Max %i (%i.%02idB)\n",
space,
idx,
range->min, range->min_dB / 100, abs(range->min_dB % 100),
range->max, range->max_dB / 100, abs(range->max_dB % 100));
}
break;
case SND_MIXER_ETYPE_MUX1:
show_mux1_info(handle, &info, space);
break;
case SND_MIXER_ETYPE_MUX2:
show_mux2_info(handle, &info, space);
break;
case SND_MIXER_ETYPE_TONE_CONTROL1:
if (info.data.tc1.tc & SND_MIXER_TC1_SW)
printf("%sOn/Off switch\n", space);
if (info.data.tc1.tc & SND_MIXER_TC1_BASS)
printf("%sBass control: Min %i (%i.%02idB), Max %i (%i.%02idB)\n",
space,
info.data.tc1.min_bass,
info.data.tc1.min_bass_dB / 100,
abs(info.data.tc1.min_bass_dB % 100),
info.data.tc1.max_bass,
info.data.tc1.max_bass_dB / 100,
abs(info.data.tc1.max_bass_dB % 100));
if (info.data.tc1.tc & SND_MIXER_TC1_TREBLE)
printf("%sTreble control: Min %i (%i.%02idB), Max %i (%i.%02idB)\n",
space,
info.data.tc1.min_treble,
info.data.tc1.min_treble_dB / 100,
abs(info.data.tc1.min_treble_dB % 100),
info.data.tc1.max_treble,
info.data.tc1.max_treble_dB / 100,
abs(info.data.tc1.max_treble_dB % 100));
break;
case SND_MIXER_ETYPE_3D_EFFECT1:
if (info.data.teffect1.effect & SND_MIXER_EFF1_SW)
printf("%sOn/Off switch\n", space);
if (info.data.teffect1.effect & SND_MIXER_EFF1_MONO_SW)
printf("%sMono processing switch\n", space);
if (info.data.teffect1.effect & SND_MIXER_EFF1_WIDE)
printf("%sWide: Min %i, Max %i\n", space,
info.data.teffect1.min_wide,
info.data.teffect1.max_wide);
if (info.data.teffect1.effect & SND_MIXER_EFF1_VOLUME)
printf("%sVolume: Min %i, Max %i\n", space,
info.data.teffect1.min_volume,
info.data.teffect1.max_volume);
if (info.data.teffect1.effect & SND_MIXER_EFF1_CENTER)
printf("%sCenter: Min %i, Max %i\n", space,
info.data.teffect1.min_center,
info.data.teffect1.max_center);
if (info.data.teffect1.effect & SND_MIXER_EFF1_SPACE)
printf("%sSpace: Min %i, Max %i\n", space,
info.data.teffect1.min_space,
info.data.teffect1.max_space);
if (info.data.teffect1.effect & SND_MIXER_EFF1_DEPTH)
printf("%sDepth: Min %i, Max %i\n", space,
info.data.teffect1.min_depth,
info.data.teffect1.max_depth);
if (info.data.teffect1.effect & SND_MIXER_EFF1_DELAY)
printf("%sDelay: Min %i, Max %i\n", space,
info.data.teffect1.min_delay,
info.data.teffect1.max_delay);
if (info.data.teffect1.effect & SND_MIXER_EFF1_FEEDBACK)
printf("%sFeedback: Min %i, Max %i\n", space,
info.data.teffect1.min_feedback,
info.data.teffect1.max_feedback);
break;
default:
printf("%sInfo handler for type %i is not available\n", space, info.eid.type);
}
snd_mixer_element_info_free(&info);
return 0;
}
int show_element_contents(void *handle, snd_mixer_eid_t *eid, const char *space)
{
int err, idx;
snd_mixer_element_t element;
snd_mixer_element_info_t info;
if (snd_mixer_element_has_control(eid) != 1)
return 0;
bzero(&element, sizeof(element));
bzero(&info, sizeof(info));
element.eid = info.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer %i/%i element error: %s", card, device, snd_strerror(err));
return -1;
}
if (snd_mixer_element_has_info(eid) == 1) {
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer %i/%i element error: %s", card, device, snd_strerror(err));
return -1;
}
}
switch (element.eid.type) {
case SND_MIXER_ETYPE_SWITCH1:
for (idx = 0; idx < element.data.switch1.sw; idx++) {
int val = snd_mixer_get_bit(element.data.switch1.psw, idx);
printf("%sVoice %i: Switch is %s\n", space, idx, val ? "ON" : "OFF");
}
break;
case SND_MIXER_ETYPE_SWITCH2:
printf("%sSwitch is %s\n", space, element.data.switch2.sw ? "ON" : "OFF");
break;
case SND_MIXER_ETYPE_SWITCH3:
if (element.data.switch3.rsw != info.data.switch3.voices * info.data.switch3.voices) {
error("Switch3 !!!\n");
goto __end;
}
for (idx = 0; idx < element.data.switch3.rsw; idx++) {
snd_mixer_voice_t input, output;
int val = snd_mixer_get_bit(element.data.switch3.prsw, idx);
printf("%sInput <", space);
input = info.data.switch3.pvoices[idx / info.data.switch3.voices];
output = info.data.switch3.pvoices[idx % info.data.switch3.voices];
if (input.vindex) {
printf("voice %i", input.voice);
} else {
printf(speaker_position(input.voice));
}
printf("> Output <");
if (output.vindex) {
printf("voice %i", output.voice);
} else {
printf(speaker_position(output.voice));
}
printf(">: Switch is %s\n", val ? "ON" : "OFF");
}
break;
case SND_MIXER_ETYPE_VOLUME1:
for (idx = 0; idx < element.data.volume1.voices; idx++) {
int val = element.data.volume1.pvoices[idx];
printf("%sVoice %i: Value %s\n", space, idx,
get_percent1(val, info.data.volume1.prange[idx].min,
info.data.volume1.prange[idx].max,
info.data.volume1.prange[idx].min_dB,
info.data.volume1.prange[idx].max_dB));
}
break;
case SND_MIXER_ETYPE_ACCU3:
for (idx = 0; idx < element.data.accu3.voices; idx++) {
int val = element.data.accu3.pvoices[idx];
printf("%sVoice %i: Value %s\n", space, idx,
get_percent1(val, info.data.accu3.prange[idx].min,
info.data.accu3.prange[idx].max,
info.data.accu3.prange[idx].min_dB,
info.data.accu3.prange[idx].max_dB));
}
break;
case SND_MIXER_ETYPE_MUX1:
for (idx = 0; idx < element.data.mux1.output; idx++) {
snd_mixer_eid_t *eid = &element.data.mux1.poutput[idx];
printf("%sVoice %i: Element ", space, idx);
if (eid->name[0] == '\0') {
printf("NONE\n");
} else {
printf("'%s',%i,%i\n", idx,
element_name(eid->name),
eid->index, eid->type);
}
}
break;
case SND_MIXER_ETYPE_MUX2:
{
printf("%sAll voices: Element ", space);
if (element.data.mux2.output.name[0] == '\0') {
printf("NONE\n");
} else {
printf("'%s',%i,%i\n",
element_name(element.data.mux2.output.name),
element.data.mux2.output.index,
element.data.mux2.output.type);
}
}
break;
case SND_MIXER_ETYPE_TONE_CONTROL1:
if (element.data.tc1.tc & SND_MIXER_TC1_SW)
printf("%sOn/Off switch is %s\n", space, element.data.tc1.sw ? "ON" : "OFF");
if (element.data.tc1.tc & SND_MIXER_TC1_BASS)
printf("%sBass: %s\n", space, get_percent1(element.data.tc1.bass, info.data.tc1.min_bass, info.data.tc1.max_bass, info.data.tc1.min_bass_dB, info.data.tc1.max_bass_dB));
if (element.data.tc1.tc & SND_MIXER_TC1_TREBLE)
printf("%sTreble: %s\n", space, get_percent1(element.data.tc1.treble, info.data.tc1.min_treble, info.data.tc1.max_treble, info.data.tc1.min_treble_dB, info.data.tc1.max_treble_dB));
break;
case SND_MIXER_ETYPE_3D_EFFECT1:
if (element.data.teffect1.effect & SND_MIXER_EFF1_SW)
printf("%sOn/Off switch is %s\n", space, element.data.teffect1.sw ? "ON" : "OFF");
if (element.data.teffect1.effect & SND_MIXER_EFF1_MONO_SW)
printf("%sMono processing switch is %s\n", space, element.data.teffect1.mono_sw ? "ON" : "OFF");
if (element.data.teffect1.effect & SND_MIXER_EFF1_WIDE)
printf("%sWide: %s\n", space, get_percent(element.data.teffect1.wide, info.data.teffect1.min_wide, info.data.teffect1.max_wide));
if (element.data.teffect1.effect & SND_MIXER_EFF1_VOLUME)
printf("%sVolume: %s\n", space, get_percent(element.data.teffect1.volume, info.data.teffect1.min_volume, info.data.teffect1.max_volume));
if (element.data.teffect1.effect & SND_MIXER_EFF1_CENTER)
printf("%sCenter: %s\n", space, get_percent(element.data.teffect1.center, info.data.teffect1.min_center, info.data.teffect1.max_center));
if (element.data.teffect1.effect & SND_MIXER_EFF1_SPACE)
printf("%sSpace: %s\n", space, get_percent(element.data.teffect1.space, info.data.teffect1.min_space, info.data.teffect1.max_space));
if (element.data.teffect1.effect & SND_MIXER_EFF1_DEPTH)
printf("%sDepth: %s\n", space, get_percent(element.data.teffect1.depth, info.data.teffect1.min_depth, info.data.teffect1.max_depth));
if (element.data.teffect1.effect & SND_MIXER_EFF1_DELAY)
printf("%sDelay: %s\n", space, get_percent(element.data.teffect1.delay, info.data.teffect1.min_delay, info.data.teffect1.max_delay));
if (element.data.teffect1.effect & SND_MIXER_EFF1_FEEDBACK)
printf("%sFeedback: %s\n", space, get_percent(element.data.teffect1.feedback, info.data.teffect1.min_feedback, info.data.teffect1.max_feedback));
break;
default:
printf("%sRead handler for type %i is not available\n", space, element.eid.type);
}
__end:
snd_mixer_element_free(&element);
if (snd_mixer_element_has_info(eid))
snd_mixer_element_info_free(&info);
return 0;
}
int elements(void)
{
int err, idx;
snd_mixer_t *handle;
snd_mixer_elements_t elements;
snd_mixer_eid_t *element;
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s", card, device, snd_strerror(err));
return -1;
}
bzero(&elements, sizeof(elements));
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements error: %s", card, device, snd_strerror(err));
return -1;
}
elements.pelements = (snd_mixer_eid_t *)malloc(elements.elements_over * sizeof(snd_mixer_eid_t));
if (!elements.pelements) {
error("Not enough memory");
return -1;
}
elements.elements_size = elements.elements_over;
elements.elements_over = elements.elements = 0;
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < elements.elements; idx++) {
element = &elements.pelements[idx];
printf("Element '%s',%i,%s\n", element_name(element->name), element->index, element_type(element->type));
show_element(handle, element, " ");
show_element_info(handle, element, " ");
}
free(elements.pelements);
snd_mixer_close(handle);
return 0;
}
int elements_contents(void)
{
int err, idx;
snd_mixer_t *handle;
snd_mixer_elements_t elements;
snd_mixer_eid_t *element;
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s", card, device, snd_strerror(err));
return -1;
}
bzero(&elements, sizeof(elements));
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements error: %s", card, device, snd_strerror(err));
return -1;
}
elements.pelements = (snd_mixer_eid_t *)malloc(elements.elements_over * sizeof(snd_mixer_eid_t));
if (!elements.pelements) {
error("Not enough memory");
return -1;
}
elements.elements_size = elements.elements_over;
elements.elements_over = elements.elements = 0;
if ((err = snd_mixer_elements(handle, &elements)) < 0) {
error("Mixer %i/%i elements (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < elements.elements; idx++) {
element = &elements.pelements[idx];
printf("Element '%s',%i,%s\n", element_name(element->name), element->index, element_type(element->type));
show_element_info(handle, element, " ");
show_element_contents(handle, element, " ");
}
free(elements.pelements);
snd_mixer_close(handle);
return 0;
}
static const char *group_name(const char *name)
{
static char res[25];
strncpy(res, name, 24);
res[24] = '\0';
return res;
}
int show_group(void *handle, snd_mixer_gid_t *gid, const char *space)
{
int err, idx, chn;
snd_mixer_group_t group;
snd_mixer_eid_t *element;
bzero(&group, sizeof(group));
group.gid = *gid;
if ((err = snd_mixer_group_read(handle, &group)) < 0) {
error("Mixer %i/%i group error: %s", card, device, snd_strerror(err));
return -1;
}
if (group_contents_is_on && group.channels) {
printf("%sCapabilities:", space);
if (group.caps & SND_MIXER_GRPCAP_VOLUME)
printf(" volume");
if (group.caps & SND_MIXER_GRPCAP_MUTE)
printf(" mute");
if (group.caps & SND_MIXER_GRPCAP_JOINTLY_MUTE)
printf(" jointly-mute");
if (group.caps & SND_MIXER_GRPCAP_CAPTURE) {
printf(" capture");
} else {
group.capture = 0;
}
if (group.caps & SND_MIXER_GRPCAP_JOINTLY_CAPTURE)
printf(" jointly-capture");
if (group.caps & SND_MIXER_GRPCAP_EXCL_CAPTURE)
printf(" exclusive-capture");
printf("\n");
if ((group.caps & SND_MIXER_GRPCAP_CAPTURE) &&
(group.caps & SND_MIXER_GRPCAP_EXCL_CAPTURE))
printf("%sCapture exclusive group: %i\n", space, group.capture_group);
printf("%sChannels: ", space);
if (group.channels == SND_MIXER_CHN_MASK_MONO) {
printf("Mono");
} else {
for (chn = 0; chn <= SND_MIXER_CHN_LAST; chn++) {
if (!(group.channels & (1<<chn)))
continue;
printf("%s ", snd_mixer_channel_name(chn));
}
}
printf("\n");
printf("%sLimits: min = %i, max = %i\n", space, group.min, group.max);
if (group.channels == SND_MIXER_CHN_MASK_MONO) {
printf("%sMono: %s [%s]\n", space, get_percent(group.volume.names.front_left, group.min, group.max), group.mute & SND_MIXER_CHN_MASK_MONO ? "mute" : "on");
} else {
for (chn = 0; chn <= SND_MIXER_CHN_LAST; chn++) {
if (!(group.channels & (1<<chn)))
continue;
printf("%s%s: %s [%s] [%s]\n",
space,
snd_mixer_channel_name(chn),
get_percent(group.volume.values[chn], group.min, group.max),
group.mute & (1<<chn) ? "mute" : "on",
group.capture & (1<<chn) ? "capture" : "---");
}
}
}
if (group_contents_is_on)
return 0;
group.pelements = (snd_mixer_eid_t *)malloc(group.elements_over * sizeof(snd_mixer_eid_t));
if (!group.pelements) {
error("Not enough memory...");
return -1;
}
group.elements_size = group.elements_over;
group.elements = group.elements_over = 0;
if ((err = snd_mixer_group_read(handle, &group)) < 0) {
error("Mixer %i/%i group (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < group.elements; idx++) {
element = &group.pelements[idx];
printf("%sElement '%s',%i,%s\n", space, element_name(element->name), element->index, element_type(element->type));
}
free(group.pelements);
return 0;
}
int groups(void)
{
int err, idx;
snd_mixer_t *handle;
snd_mixer_groups_t groups;
snd_mixer_gid_t *group;
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s", card, device, snd_strerror(err));
return -1;
}
bzero(&groups, sizeof(groups));
if ((err = snd_mixer_groups(handle, &groups)) < 0) {
error("Mixer %i/%i groups error: %s", card, device, snd_strerror(err));
return -1;
}
groups.pgroups = (snd_mixer_gid_t *)malloc(groups.groups_over * sizeof(snd_mixer_eid_t));
if (!groups.pgroups) {
error("Not enough memory");
return -1;
}
groups.groups_size = groups.groups_over;
groups.groups_over = groups.groups = 0;
if ((err = snd_mixer_groups(handle, &groups)) < 0) {
error("Mixer %i/%i groups (2) error: %s", card, device, snd_strerror(err));
return -1;
}
for (idx = 0; idx < groups.groups; idx++) {
group = &groups.pgroups[idx];
printf("Group '%s',%i\n", group_name(group->name), group->index);
show_group(handle, group, " ");
}
free(groups.pgroups);
snd_mixer_close(handle);
return 0;
}
int groups_contents(void)
{
int err;
group_contents_is_on = 1;
err = groups();
group_contents_is_on = 0;
return err;
}
static int parse_eid(const char *str, snd_mixer_eid_t *eid)
{
int c, size, idx;
char *ptr;
while (*str == ' ' || *str == '\t')
str++;
if (!(*str))
return 1;
bzero(eid, sizeof(*eid));
if (!strncmp(str, "none", 4) || !strncmp(str, "NONE", 4))
return 0;
ptr = eid->name;
size = 0;
if (*str != '"' && *str != '\'') {
while (*str && *str != ',') {
if (size < sizeof(eid->name)) {
*ptr++ = *str;
size++;
}
str++;
}
} else {
c = *str++;
while (*str && *str != c) {
if (size < sizeof(eid->name)) {
*ptr++ = *str;
size++;
}
str++;
}
if (*str == c)
str++;
}
if (*str != ',')
return 1;
str++;
if (!isdigit(*str))
return 1;
eid->index = atoi(str);
while (isdigit(*str))
str++;
if (*str != ',')
return 1;
str++;
if (isdigit(*str)) {
eid->type = atoi(str);
return 0;
} else {
for (idx = 0; mixer_types[idx].type >= 0; idx++)
if (!strncmp(mixer_types[idx].name, str, strlen(mixer_types[idx].name))) {
eid->type = mixer_types[idx].type;
return 0;
}
}
return 1;
}
static int parse_gid(const char *str, snd_mixer_gid_t *gid)
{
int c, size;
char *ptr;
while (*str == ' ' || *str == '\t')
str++;
if (!(*str))
return 1;
bzero(gid, sizeof(*gid));
ptr = gid->name;
size = 0;
if (*str != '"' && *str != '\'') {
while (*str && *str != ',') {
if (size < sizeof(gid->name)) {
*ptr++ = *str;
size++;
}
str++;
}
} else {
c = *str++;
while (*str && *str != c) {
if (size < sizeof(gid->name)) {
*ptr++ = *str;
size++;
}
str++;
}
if (*str == c)
str++;
}
if (*str == '\0')
return 0;
if (*str != ',')
return 1;
str++;
if (!isdigit(*str))
return 1;
gid->index = atoi(str);
return 0;
}
int eset_switch1(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err, tmp, idx = 0;
snd_mixer_element_t element;
char *ptr;
if (argc != 1) {
fprintf(stderr, "The set Switch1 command requires an argument:\n");
fprintf(stderr, " on/off[,on/off] ...\n");
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element build error: %s", snd_strerror(err));
return 1;
}
if (!strcmp(argv[0], "on") || !strcmp(argv[0], "off")) {
tmp = !strcmp(argv[0], "on");
for (idx = 0; idx < element.data.switch1.sw; idx++)
snd_mixer_set_bit(element.data.switch1.psw, idx, tmp);
} else {
ptr = argv[idx];
for (idx = 0; idx < element.data.switch1.sw; idx++) {
tmp = !strncmp(ptr, "on", 2);
snd_mixer_set_bit(element.data.switch1.psw, idx, tmp);
while (*ptr && *ptr != ',')
ptr++;
if (*ptr == ',')
ptr++;
}
}
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
return 1;
}
snd_mixer_element_free(&element);
return 0;
}
int eset_switch2(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err;
snd_mixer_element_t element;
if (argc != 1) {
fprintf(stderr, "The set Switch2 command requires an argument:\n");
fprintf(stderr, " on/off\n");
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element build error: %s", snd_strerror(err));
return 1;
}
element.data.switch2.sw = !strcmp(argv[0], "on") ? 1 : 0;
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
return 1;
}
snd_mixer_element_free(&element);
return 0;
}
int eset_volume1(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err, tmp, idx = 0;
snd_mixer_element_t element;
snd_mixer_element_info_t info;
char *ptr;
if (argc != 1 || (!isdigit(*argv[0]) && *argv[0] != ':')) {
fprintf(stderr, "The set Volume1 command requires an argument:\n");
fprintf(stderr, " vol[,vol] ...\n");
return 1;
}
bzero(&info, sizeof(info));
info.eid = *eid;
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
snd_mixer_element_info_free(&info);
return 1;
}
if (!strchr(argv[0], ',')) {
for (idx = 0; idx < element.data.volume1.voices; idx++) {
ptr = argv[0];
tmp = get_volume(&ptr,
info.data.volume1.prange[idx].min,
info.data.volume1.prange[idx].max,
info.data.volume1.prange[idx].min_dB,
info.data.volume1.prange[idx].max_dB);
element.data.volume1.pvoices[idx] = tmp;
}
} else {
ptr = argv[idx];
for (idx = 0; idx < element.data.volume1.voices; idx++) {
tmp = get_volume(&ptr,
info.data.volume1.prange[idx].min,
info.data.volume1.prange[idx].max,
info.data.volume1.prange[idx].min_dB,
info.data.volume1.prange[idx].max_dB);
element.data.volume1.pvoices[idx] = tmp;
}
}
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 0;
}
int eset_accu3(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err, tmp, idx = 0;
snd_mixer_element_t element;
snd_mixer_element_info_t info;
char *ptr;
if (argc != 1 || (!isdigit(*argv[0]) && *argv[0] != ':')) {
fprintf(stderr, "The set Accu3 command requires an argument:\n");
fprintf(stderr, " vol[,vol] ...\n");
return 1;
}
bzero(&info, sizeof(info));
info.eid = *eid;
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
snd_mixer_element_info_free(&info);
return 1;
}
if (!strchr(argv[0], ',')) {
for (idx = 0; idx < element.data.accu3.voices; idx++) {
ptr = argv[0];
tmp = get_volume(&ptr,
info.data.accu3.prange[idx].min,
info.data.accu3.prange[idx].max,
info.data.accu3.prange[idx].min_dB,
info.data.accu3.prange[idx].max_dB);
element.data.accu3.pvoices[idx] = tmp;
}
} else {
ptr = argv[idx];
for (idx = 0; idx < element.data.volume1.voices; idx++) {
tmp = get_volume(&ptr,
info.data.accu3.prange[idx].min,
info.data.accu3.prange[idx].max,
info.data.accu3.prange[idx].min_dB,
info.data.accu3.prange[idx].max_dB);
element.data.accu3.pvoices[idx] = tmp;
}
}
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 0;
}
int eset_mux1(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err, idx = 0;
snd_mixer_element_t element;
snd_mixer_element_info_t info;
snd_mixer_eid_t xeid;
if (argc < 1) {
fprintf(stderr, "The set Mux1 command requires an argument:\n");
fprintf(stderr, " element[ element] ...\n");
return 1;
}
bzero(&info, sizeof(info));
info.eid = *eid;
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
snd_mixer_element_info_free(&info);
return 1;
}
if (argc == 1) {
if (parse_eid(argv[0], &xeid)) {
fprintf(stderr, "Wrong element identifier: %s\n", argv[0]);
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
for (idx = 0; idx < element.data.mux1.output; idx++)
element.data.mux1.poutput[idx] = xeid;
} else {
for (idx = 0; idx < element.data.volume1.voices; idx++) {
if (parse_eid(argv[idx >= argc ? argc - 1 : idx], &xeid)) {
fprintf(stderr, "Wrong element identifier: %s\n", argv[0]);
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
element.data.mux1.poutput[idx] = xeid;
}
}
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 0;
}
int eset_mux2(int argc, char *argv[], void *handle, snd_mixer_eid_t *eid)
{
int err, idx = 0;
snd_mixer_element_t element;
snd_mixer_element_info_t info;
snd_mixer_eid_t xeid;
if (argc != 1) {
fprintf(stderr, "The set Mux2 command requires an argument:\n");
fprintf(stderr, " element\n");
return 1;
}
bzero(&info, sizeof(info));
info.eid = *eid;
if ((err = snd_mixer_element_info_build(handle, &info)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
return 1;
}
bzero(&element, sizeof(element));
element.eid = *eid;
if ((err = snd_mixer_element_build(handle, &element)) < 0) {
error("Mixer element read error: %s", snd_strerror(err));
snd_mixer_element_info_free(&info);
return 1;
}
if (parse_eid(argv[0], &xeid)) {
fprintf(stderr, "Wrong element identifier: %s\n", argv[0]);
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
element.data.mux2.output = xeid;
if ((err = snd_mixer_element_write(handle, &element)) < 0) {
error("Mixer element write error: %s\n", snd_strerror(err));
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 1;
}
snd_mixer_element_free(&element);
snd_mixer_element_info_free(&info);
return 0;
}
int eset(int argc, char *argv[])
{
int err;
snd_mixer_t *handle;
snd_mixer_eid_t eid;
if (argc < 1) {
fprintf(stderr, "Specify a full element identifier: 'name',index,type\n");
return 1;
}
if (parse_eid(argv[0], &eid)) {
fprintf(stderr, "Wrong element identifier: %s\n", argv[0]);
return 1;
}
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s\n", card, device, snd_strerror(err));
return -1;
}
if (!quiet) {
printf("Element '%s',%i,%s\n", element_name(eid.name), eid.index, element_type(eid.type));
}
switch (eid.type) {
case SND_MIXER_ETYPE_SWITCH1:
if (eset_switch1(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
case SND_MIXER_ETYPE_SWITCH2:
if (eset_switch2(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
case SND_MIXER_ETYPE_VOLUME1:
if (eset_volume1(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
case SND_MIXER_ETYPE_ACCU3:
if (eset_accu3(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
case SND_MIXER_ETYPE_MUX1:
if (eset_mux1(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
case SND_MIXER_ETYPE_MUX2:
if (eset_mux2(argc - 1, argv + 1, handle, &eid))
goto __end;
break;
}
if (!quiet) {
if (snd_mixer_element_has_info(&eid)) {
show_element_info(handle, &eid, " ");
}
if (snd_mixer_element_has_control(&eid)) {
show_element_contents(handle, &eid, " ");
}
}
__end:
snd_mixer_close(handle);
return 0;
}
int eget(int argc, char *argv[])
{
int err;
snd_mixer_t *handle;
snd_mixer_eid_t eid;
if (argc < 1) {
fprintf(stderr, "Specify a full element identifier: 'name',index,type\n");
return 1;
}
if (parse_eid(argv[0], &eid)) {
fprintf(stderr, "Wrong element identifier: %s\n", argv[0]);
return 1;
}
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s\n", card, device, snd_strerror(err));
return -1;
}
printf("Element '%s',%i,%s\n", element_name(eid.name), eid.index, element_type(eid.type));
if (show_element(handle, &eid, " ") >= 0) {
if (snd_mixer_element_has_info(&eid)) {
show_element_info(handle, &eid, " ");
}
if (snd_mixer_element_has_control(&eid)) {
show_element_contents(handle, &eid, " ");
}
}
snd_mixer_close(handle);
return 0;
}
int gset(int argc, char *argv[])
{
int err, idx, chn;
snd_mixer_t *handle;
snd_mixer_gid_t gid;
snd_mixer_group_t group;
if (argc < 1) {
fprintf(stderr, "Specify a group identifier: 'name',index\n");
return 1;
}
if (parse_gid(argv[0], &gid)) {
fprintf(stderr, "Wrong group identifier: %s\n", argv[0]);
return 1;
}
if (argc < 2) {
fprintf(stderr, "Specify what you want to set...\n");
return 1;
}
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s\n", card, device, snd_strerror(err));
return -1;
}
bzero(&group, sizeof(group));
group.gid = gid;
if (snd_mixer_group_read(handle, &group)<0) {
error("Unable to read group '%s',%i: %s\n", group_name(gid.name), gid.index, snd_strerror(err));
snd_mixer_close(handle);
return -1;
}
for (idx = 1; idx < argc; idx++) {
if (!strncmp(argv[idx], "mute", 4) ||
!strncmp(argv[idx], "off", 3)) {
group.mute = group.channels;
} else if (!strncmp(argv[idx], "unmute", 6) ||
!strncmp(argv[idx], "on", 2)) {
group.mute = 0;
} else if (!strncmp(argv[idx], "capture", 7) ||
!strncmp(argv[idx], "rec", 3)) {
group.capture = group.channels;
} else if (!strncmp(argv[idx], "nocapture", 9) ||
!strncmp(argv[idx], "norec", 5)) {
group.capture = 0;
} else if (isdigit(argv[idx][0])) {
char *ptr;
int vol;
ptr = argv[idx];
vol = get_volume_simple(&ptr, group.min, group.max);
for (chn = 0; chn <= SND_MIXER_CHN_LAST; chn++) {
if (!(group.channels & (1<<chn)))
continue;
group.volume.values[chn] = vol;
}
} else {
error("Unknown setup '%s'..\n", argv[idx]);
snd_mixer_close(handle);
return -1;
}
}
if (snd_mixer_group_write(handle, &group)<0) {
error("Unable to write group '%s',%i: %s\n", group_name(gid.name), gid.index, snd_strerror(err));
snd_mixer_close(handle);
return -1;
}
if (!quiet) {
printf("Group '%s',%i\n", group_name(gid.name), gid.index);
group_contents_is_on = 1;
show_group(handle, &gid, " ");
group_contents_is_on = 0;
}
snd_mixer_close(handle);
return 0;
}
int gget(int argc, char *argv[])
{
int err;
snd_mixer_t *handle;
snd_mixer_gid_t gid;
if (argc < 1) {
fprintf(stderr, "Specify a group identifier: 'name',index\n");
return 1;
}
if (parse_gid(argv[0], &gid)) {
fprintf(stderr, "Wrong group identifier: %s\n", argv[0]);
return 1;
}
if ((err = snd_mixer_open(&handle, card, device)) < 0) {
error("Mixer %i/%i open error: %s\n", card, device, snd_strerror(err));
return -1;
}
if (!quiet) {
printf("Group '%s',%i\n", group_name(gid.name), gid.index);
group_contents_is_on = 1;
show_group(handle, &gid, " ");
group_contents_is_on = 0;
}
snd_mixer_close(handle);
return 0;
}
int main(int argc, char *argv[])
{
int morehelp;
struct option long_option[] =
{
{"help", 0, NULL, HELPID_HELP},
{"card", 1, NULL, HELPID_CARD},
{"device", 1, NULL, HELPID_DEVICE},
{"quiet", 0, NULL, HELPID_QUIET},
{"debug", 0, NULL, HELPID_DEBUG},
{"version", 0, NULL, HELPID_VERSION},
{NULL, 0, NULL, 0},
};
morehelp = 0;
card = snd_defaults_mixer_card();
device = snd_defaults_mixer_device();
if (card < 0 || device < 0) {
fprintf(stderr, "The ALSA sound driver was not detected in this system.\n");
return 1;
}
while (1) {
int c;
if ((c = getopt_long(argc, argv, "hc:d:qDv", long_option, NULL)) < 0)
break;
switch (c) {
case 'h':
case HELPID_HELP:
morehelp++;
break;
case 'c':
case HELPID_CARD:
card = snd_card_name(optarg);
break;
case 'd':
case HELPID_DEVICE:
device = atoi(optarg);
if (device < 0 || device > 32) {
fprintf(stderr, "Error: device %i is invalid\n", device);
return 1;
}
break;
case 'q':
case HELPID_QUIET:
quiet = 1;
break;
case 'D':
case HELPID_DEBUG:
debugflag = 1;
break;
case 'v':
case HELPID_VERSION:
printf("amixer version " SND_UTIL_VERSION_STR "\n");
return 1;
default:
fprintf(stderr, "\07Invalid switch or option needs an argument.\n");
morehelp++;
}
}
if (morehelp) {
help();
return 1;
}
if (argc - optind <= 0) {
return groups_contents() ? 1 : 0;
}
if (!strcmp(argv[optind], "info")) {
return info() ? 1 : 0;
} else if (!strcmp(argv[optind], "elements")) {
return elements() ? 1 : 0;
} else if (!strcmp(argv[optind], "contents")) {
return elements_contents() ? 1 : 0;
} else if (!strcmp(argv[optind], "groups")) {
return groups() ? 1 : 0;
} else if (!strcmp(argv[optind], "gcontents")) {
return groups_contents() ? 1 : 0;
} else if (!strcmp(argv[optind], "set")) {
return gset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL) ? 1 : 0;
} else if (!strcmp(argv[optind], "get")) {
return gget(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL) ? 1 : 0;
} else if (!strcmp(argv[optind], "eset")) {
return eset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL) ? 1 : 0;
} else if (!strcmp(argv[optind], "eget")) {
return eget(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL) ? 1 : 0;
} else {
fprintf(stderr, "amixer: Unknown command '%s'...\n", argv[optind]);
}
return 0;
}
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