void audio_set_default_levels() { int err; snd_ctl_t *ctl; snd_ctl_elem_value_t *val; snd_ctl_elem_value_alloca(&val); if (snd_ctl_open(&ctl, ALSA_DEVICE, 0)) { fprintf(stderr, "can't open audio device"); return; } /* unmute microphone */ snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, "Mic Capture Switch"); snd_ctl_elem_value_set_integer(val, 0, 1); err = snd_ctl_elem_write(ctl, val); if (err) fprintf(stderr, "can't unmute microphone: %s\n", snd_strerror(err)); /* unmute speaker */ snd_ctl_elem_value_clear(val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, "Speaker Playback Switch"); snd_ctl_elem_value_set_integer(val, 0, 1); err = snd_ctl_elem_write(ctl, val); if (err) fprintf(stderr, "can't unmute speaker: %s\n", snd_strerror(err)); /* set mic volume */ snd_ctl_elem_value_clear(val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, "Mic Capture Volume"); snd_ctl_elem_value_set_integer(val, 0, DEFAULT_MIC_VOL); err = snd_ctl_elem_write(ctl, val); if (err) fprintf(stderr, "can't set microphone volume: %s\n", snd_strerror(err)); /* set speaker volume */ snd_ctl_elem_value_clear(val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, "Speaker Playback Volume"); snd_ctl_elem_value_set_integer(val, 0, DEFAULT_SPKR_VOL); snd_ctl_elem_value_set_integer(val, 1, DEFAULT_SPKR_VOL); err = snd_ctl_elem_write(ctl, val); if (err) fprintf(stderr, "can't set speaker volume: %s\n", snd_strerror(err)); /* set capture source */ snd_ctl_elem_value_clear(val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, "PCM Capture Source"); snd_ctl_elem_value_set_integer(val, 0, 0); err = snd_ctl_elem_write(ctl, val); if (err) fprintf(stderr, "can't set capture source: %s\n", snd_strerror(err)); snd_ctl_close(ctl); }
void level_meters_init(void) { int err; snd_ctl_elem_value_malloc(&peaks); snd_ctl_elem_value_set_interface(peaks, SND_CTL_ELEM_IFACE_PCM); snd_ctl_elem_value_set_name(peaks, "Multi Track Peak"); if ((err = snd_ctl_elem_read(ctl, peaks)) < 0) /* older ALSA driver, using MIXER type */ snd_ctl_elem_value_set_interface(peaks, SND_CTL_ELEM_IFACE_MIXER); }
static void set_routes(int stream, int idx) { int err; unsigned int out; snd_ctl_elem_value_t *val; stream--; if (stream < 0 || stream > 9) { g_print("set_routes (1)\n"); return; } if (! stream_active[stream]) return; out = 0; if (idx == 1) out = MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1; else if (idx == 2 || idx == 3) /* S/PDIF left & right */ out = idx + 7; /* 9-10 */ else if (idx >= 4) /* analog */ out = idx - 3; /* 1-8 */ snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); if (stream >= MAX_OUTPUT_CHANNELS) { snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME); snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS); } else { snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME); snd_ctl_elem_value_set_index(val, stream); } snd_ctl_elem_value_set_enumerated(val, 0, out); if ((err = snd_ctl_elem_write(ctl, val)) < 0) g_print("Multi track route write error: %s\n", snd_strerror(err)); }
static int get_toggle_index(int stream) { int err, out; snd_ctl_elem_value_t *val; stream--; if (stream < 0 || stream > 9) { g_print("get_toggle_index (1)\n"); return 0; } snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); if (stream >= MAX_OUTPUT_CHANNELS) { snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME); snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS); } else { snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME); snd_ctl_elem_value_set_index(val, stream); } if ((err = snd_ctl_elem_read(ctl, val)) < 0) return 0; out = snd_ctl_elem_value_get_enumerated(val, 0); if (out >= MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1) { if (stream >= MAX_PCM_OUTPUT_CHANNELS || stream < MAX_SPDIF_CHANNELS) return 1; /* digital mixer */ } else if (out >= MAX_INPUT_CHANNELS + 1) return out - (MAX_INPUT_CHANNELS + 1) + 2; /* spdif left (=2) / right (=3) */ else if (out >= 1) return out + spdif_channels + 1; /* analog (4-) */ return 0; /* pcm */ }
void patchbay_init(void) { int i; int nb_active_channels; snd_ctl_elem_value_t *val; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME); memset (stream_active, 0, (MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS) * sizeof(int)); nb_active_channels = 0; for (i = 0; i < output_channels; i++) { snd_ctl_elem_value_set_numid(val, 0); snd_ctl_elem_value_set_index(val, i); if (snd_ctl_elem_read(ctl, val) < 0) continue; stream_active[i] = 1; nb_active_channels++; } output_channels = nb_active_channels; snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME); nb_active_channels = 0; for (i = 0; i < spdif_channels; i++) { snd_ctl_elem_value_set_numid(val, 0); snd_ctl_elem_value_set_index(val, i); if (snd_ctl_elem_read(ctl, val) < 0) continue; stream_active[i + MAX_OUTPUT_CHANNELS] = 1; nb_active_channels++; } spdif_channels = nb_active_channels; }
void ipga_volume_update(int idx) { snd_ctl_elem_value_t *val; int err, ipga_vol; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, IPGA_VOLUME_NAME); snd_ctl_elem_value_set_index(val, idx); if ((err = snd_ctl_elem_read(ctl, val)) < 0) { g_print("Unable to read ipga volume: %s\n", snd_strerror(err)); return; } gtk_adjustment_set_value(GTK_ADJUSTMENT(av_ipga_volume_adj[idx]), -(ipga_vol = snd_ctl_elem_value_get_integer(val, 0))); snd_ctl_elem_value_set_name(val, ADC_VOLUME_NAME); snd_ctl_elem_value_set_index(val, idx); if ((err = snd_ctl_elem_read(ctl, val)) < 0) { g_print("Unable to read adc volume: %s\n", snd_strerror(err)); return; } // set ADC volume to max if IPGA volume greater 0 if (ipga_vol) gtk_adjustment_set_value(GTK_ADJUSTMENT(av_adc_volume_adj[idx]), -adc_max); }
void adc_sense_toggled(GtkWidget *togglebutton, gpointer data) { int idx = (long)data >> 8; int state = (long)data & 0xff; snd_ctl_elem_value_t *val; int err; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, ADC_SENSE_NAME); snd_ctl_elem_value_set_index(val, idx); snd_ctl_elem_value_set_enumerated(val, 0, state); if ((err = snd_ctl_elem_write(ctl, val)) < 0) g_print("Unable to write adc sense: %s\n", snd_strerror(err)); }
void dac_volume_update(int idx) { snd_ctl_elem_value_t *val; int err; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, DAC_VOLUME_NAME); snd_ctl_elem_value_set_index(val, idx); if ((err = snd_ctl_elem_read(ctl, val)) < 0) { g_print("Unable to read dac volume: %s\n", snd_strerror(err)); return; } gtk_adjustment_set_value(GTK_ADJUSTMENT(av_dac_volume_adj[idx]), -snd_ctl_elem_value_get_integer(val, 0)); }
void adc_sense_update(int idx) { snd_ctl_elem_value_t *val; int err; int state; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, ADC_SENSE_NAME); snd_ctl_elem_value_set_index(val, idx); if ((err = snd_ctl_elem_read(ctl, val)) < 0) { g_print("Unable to read adc sense: %s\n", snd_strerror(err)); return; } state = snd_ctl_elem_value_get_enumerated(val, 0); toggle_set(av_adc_sense_radio[idx][state], TRUE); }
int configure_T2_DAC2_AnalogR_Playback_Volume(snd_ctl_t *ctl,char on_off_status) { snd_ctl_elem_value_t *value; snd_ctl_elem_value_alloca(&value); snd_ctl_elem_value_set_interface(value, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(value, control_elements_of_interest[6]); if (on_off_status) { g_t2_default_dac2_analogr = snd_ctl_elem_value_get_enumerated(value,0); snd_ctl_elem_value_set_enumerated(value,0, on_off_status); } else { snd_ctl_elem_value_set_enumerated(value,0, g_t2_default_dac2_analogr); } return(snd_ctl_elem_write(ctl, value)); }
void ipga_volume_adjust(GtkAdjustment *adj, gpointer data) { int idx = (int)(long)data; snd_ctl_elem_value_t *val; int err, ival = -(int)adj->value; char text[16]; snd_ctl_elem_value_alloca(&val); snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER); snd_ctl_elem_value_set_name(val, IPGA_VOLUME_NAME); snd_ctl_elem_value_set_index(val, idx); snd_ctl_elem_value_set_integer(val, 0, ival); sprintf(text, "%03i", ival); gtk_label_set_text(av_ipga_volume_label[idx], text); if ((err = snd_ctl_elem_write(ctl, val)) < 0) g_print("Unable to write ipga volume: %s\n", snd_strerror(err)); }