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-rw-r--r--tinyalsa_audio/mixer.c1318
1 files changed, 1318 insertions, 0 deletions
diff --git a/tinyalsa_audio/mixer.c b/tinyalsa_audio/mixer.c
new file mode 100644
index 0000000..151ce12
--- /dev/null
+++ b/tinyalsa_audio/mixer.c
@@ -0,0 +1,1318 @@
+/*
+ * Copyright (C) 2012 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * This is based on Galaxy Nexus audio.primary.tuna implementation:
+ * Copyright 2011, The Android Open-Source Project
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#define LOG_TAG "TinyALSA-Audio Mixer"
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <sys/time.h>
+
+#include <cutils/log.h>
+
+#include <expat.h>
+
+#define EFFECT_UUID_NULL EFFECT_UUID_NULL_MIXER
+#define EFFECT_UUID_NULL_STR EFFECT_UUID_NULL_STR_MIXER
+#include "audio_hw.h"
+#include "mixer.h"
+
+/*
+ * List
+ */
+
+struct list_head *list_head_alloc(void)
+{
+ struct list_head *list = (struct list_head *)
+ calloc(1, sizeof(struct list_head));
+
+ return list;
+}
+
+void list_head_free(struct list_head *list)
+{
+ struct list_head *list_prev;
+
+ while(list != NULL) {
+ list_prev = list;
+ list = list->next;
+
+ free(list_prev);
+ }
+}
+
+/*
+ * Mixer data
+ */
+
+struct tinyalsa_mixer_data *tinyalsa_mixer_data_alloc(void)
+{
+ struct tinyalsa_mixer_data *mixer_data = (struct tinyalsa_mixer_data *)
+ calloc(1, sizeof(struct tinyalsa_mixer_data));
+
+ return mixer_data;
+}
+
+void tinyalsa_mixer_data_free(struct tinyalsa_mixer_data *mixer_data)
+{
+ if(mixer_data == NULL)
+ return;
+
+ if(mixer_data->name != NULL) {
+ free(mixer_data->name);
+ mixer_data->name = NULL;
+ }
+
+ if(mixer_data->value != NULL) {
+ free(mixer_data->value);
+ mixer_data->value = NULL;
+ }
+
+ if(mixer_data->attr != NULL) {
+ free(mixer_data->attr);
+ mixer_data->attr = NULL;
+ }
+
+ free(mixer_data);
+}
+
+struct tinyalsa_mixer_data *tinyalsa_mixer_get_data_with_attr(
+ struct list_head *list_data, char *attr)
+{
+ struct tinyalsa_mixer_data *mixer_data = NULL;
+
+ while(list_data != NULL) {
+ mixer_data = (struct tinyalsa_mixer_data *) list_data->data;
+
+ if(mixer_data->type == MIXER_DATA_TYPE_CTRL) {
+ if(mixer_data->attr != NULL &&
+ strcmp(mixer_data->attr, attr) == 0) {
+ break;
+ } else {
+ mixer_data = NULL;
+ }
+
+ }
+
+ if(list_data->next != NULL)
+ list_data = list_data->next;
+ else
+ break;
+ }
+
+ return mixer_data;
+}
+
+/*
+ * Mixer device
+ */
+
+struct tinyalsa_mixer_device *tinyalsa_mixer_device_alloc(void)
+{
+ struct tinyalsa_mixer_device *mixer_device = (struct tinyalsa_mixer_device *)
+ calloc(1, sizeof(struct tinyalsa_mixer_device));
+
+ return mixer_device;
+}
+
+void tinyalsa_mixer_device_free(struct tinyalsa_mixer_device *mixer_device)
+{
+ struct tinyalsa_mixer_data *mixer_data;
+ struct list_head *list_data;
+ struct list_head *list_prev;
+
+ if(mixer_device == NULL)
+ return;
+
+ list_data = mixer_device->enable;
+
+ while(list_data != NULL) {
+ mixer_data = (struct tinyalsa_mixer_data *) list_data->data;
+
+ tinyalsa_mixer_data_free(mixer_data);
+ list_data->data = NULL;
+
+ list_prev = list_data;
+ list_data = list_data->next;
+
+ list_head_free(list_prev);
+ }
+
+ list_data = mixer_device->disable;
+
+ while(list_data != NULL) {
+ mixer_data = (struct tinyalsa_mixer_data *) list_data->data;
+
+ tinyalsa_mixer_data_free(mixer_data);
+ list_data->data = NULL;
+
+ list_prev = list_data;
+ list_data = list_data->next;
+
+ list_head_free(list_prev);
+ }
+
+ mixer_device->enable = NULL;
+ mixer_device->disable = NULL;
+
+ free(mixer_device);
+}
+
+struct tinyalsa_mixer_device *tinyalsa_mixer_get_device(struct tinyalsa_mixer_io *mixer_io,
+ audio_devices_t device)
+{
+ struct tinyalsa_mixer_device *mixer_device = NULL;
+ struct list_head *list = NULL;
+
+ if(mixer_io == NULL)
+ return NULL;
+
+ list = mixer_io->devices;
+
+ while(list != NULL) {
+ mixer_device = (struct tinyalsa_mixer_device *) list->data;
+ if(mixer_device != NULL && mixer_device->props.type == device) {
+ break;
+ } else {
+ mixer_device = NULL;
+ }
+
+ list = list->next;
+ }
+
+ return mixer_device;
+}
+
+/*
+ * Mixer I/O
+ */
+
+void tinyalsa_mixer_io_free_devices(struct tinyalsa_mixer_io *mixer_io)
+{
+ struct tinyalsa_mixer_device *mixer_device;
+ struct list_head *list_device;
+ struct list_head *list_prev;
+
+ if(mixer_io == NULL)
+ return;
+
+ list_device = mixer_io->devices;
+
+ while(list_device != NULL) {
+ mixer_device = (struct tinyalsa_mixer_device *) list_device->data;
+
+ tinyalsa_mixer_device_free(mixer_device);
+ list_device->data = NULL;
+
+ list_prev = list_device;
+ list_device = list_device->next;
+
+ list_head_free(list_prev);
+ }
+}
+
+/*
+ * Mixer config
+ */
+
+void tinyalsa_mixer_config_start(void *data, const XML_Char *elem,
+ const XML_Char **attr)
+{
+ struct tinyalsa_mixer_config_data *config_data;
+ struct tinyalsa_mixer_data *mixer_data;
+ struct list_head *list;
+ int i;
+
+ if(data == NULL || elem == NULL || attr == NULL)
+ return;
+
+ config_data = (struct tinyalsa_mixer_config_data *) data;
+
+ if(strcmp(elem, "tinyalsa-audio") == 0) {
+ for(i=0 ; attr[i] != NULL && attr[i+1] != NULL ; i++) {
+ if(strcmp(attr[i], "device") == 0) {
+ i++;
+ ALOGD("Parsing config for device: %s", attr[i]);
+ }
+ }
+ } else if(strcmp(elem, "output") == 0) {
+ config_data->direction = TINYALSA_MIXER_DIRECTION_OUTPUT;
+
+ for(i=0 ; attr[i] != NULL && attr[i+1] ; i++) {
+ if(strcmp(attr[i], "card") == 0) {
+ i++;
+ config_data->io_props.card = atoi(attr[i]);
+ } else if(strcmp(attr[i], "device") == 0) {
+ i++;
+ config_data->io_props.device = atoi(attr[i]);
+ } else if(strcmp(attr[i], "rate") == 0) {
+ i++;
+ config_data->io_props.rate = atoi(attr[i]);
+ } else if(strcmp(attr[i], "channels") == 0) {
+ i++;
+ switch(atoi(attr[i])) {
+ case 1:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_OUT_MONO;
+ break;
+ case 2:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+ break;
+ case 4:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_OUT_SURROUND;
+ break;
+ case 6:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_OUT_5POINT1;
+ break;
+ case 8:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_OUT_7POINT1;
+ break;
+ default:
+ ALOGE("Unknown channel attr: %s", attr[i]);
+ break;
+ }
+ } else if(strcmp(attr[i], "format") == 0) {
+ i++;
+ if(strcmp(attr[i], "PCM_8") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_8_BIT;
+ } else if(strcmp(attr[i], "PCM_16") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_16_BIT;
+ } else if(strcmp(attr[i], "PCM_32") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_32_BIT;
+ } else if(strcmp(attr[i], "PCM_8_24") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_8_24_BIT;
+ } else {
+ ALOGE("Unknown format attr: %s", attr[i]);
+ }
+ } else if(strcmp(attr[i], "period_size") == 0) {
+ i++;
+ config_data->io_props.period_size = atoi(attr[i]);
+ } else if(strcmp(attr[i], "period_count") == 0) {
+ i++;
+ config_data->io_props.period_count = atoi(attr[i]);
+ } else {
+ ALOGE("Unknown output attr: %s", attr[i]);
+ }
+ }
+ } else if(strcmp(elem, "input") == 0) {
+ config_data->direction = TINYALSA_MIXER_DIRECTION_INPUT;
+
+ for(i=0 ; attr[i] != NULL && attr[i+1] ; i++) {
+ if(strcmp(attr[i], "card") == 0) {
+ i++;
+ config_data->io_props.card = atoi(attr[i]);
+ } else if(strcmp(attr[i], "device") == 0) {
+ i++;
+ config_data->io_props.device = atoi(attr[i]);
+ } else if(strcmp(attr[i], "rate") == 0) {
+ i++;
+ config_data->io_props.rate = atoi(attr[i]);
+ } else if(strcmp(attr[i], "channels") == 0) {
+ i++;
+ switch(atoi(attr[i])) {
+ case 1:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_IN_MONO;
+ break;
+ case 2:
+ config_data->io_props.channel_mask = AUDIO_CHANNEL_IN_STEREO;
+ break;
+ default:
+ ALOGE("Unknown channel attr: %s", attr[i]);
+ break;
+ }
+ } else if(strcmp(attr[i], "format") == 0) {
+ i++;
+ if(strcmp(attr[i], "PCM_8") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_8_BIT;
+ } else if(strcmp(attr[i], "PCM_16") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_16_BIT;
+ } else if(strcmp(attr[i], "PCM_32") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_32_BIT;
+ } else if(strcmp(attr[i], "PCM_8_24") == 0) {
+ config_data->io_props.format = AUDIO_FORMAT_PCM_8_24_BIT;
+ } else {
+ ALOGE("Unknown format attr: %s", attr[i]);
+ }
+ } else if(strcmp(attr[i], "period_size") == 0) {
+ i++;
+ config_data->io_props.period_size = atoi(attr[i]);
+ } else if(strcmp(attr[i], "period_count") == 0) {
+ i++;
+ config_data->io_props.period_count = atoi(attr[i]);
+ } else {
+ ALOGE("Unknown input attr: %s", attr[i]);
+ }
+ }
+ } else if(strcmp(elem, "modem") == 0) {
+ config_data->direction = TINYALSA_MIXER_DIRECTION_MODEM;
+
+ for(i=0 ; attr[i] != NULL && attr[i+1] ; i++) {
+ if(strcmp(attr[i], "card") == 0) {
+ i++;
+ config_data->io_props.card = atoi(attr[i]);
+ } else if(strcmp(attr[i], "device") == 0) {
+ i++;
+ config_data->io_props.device = atoi(attr[i]);
+ } else {
+ ALOGE("Unknown modem attr: %s", attr[i]);
+ }
+ }
+ } else if(strcmp(elem, "device") == 0) {
+ for(i=0 ; attr[i] != NULL && attr[i+1] != NULL ; i++) {
+ if(strcmp(attr[i], "type") == 0) {
+ i++;
+ if(config_data->direction == TINYALSA_MIXER_DIRECTION_OUTPUT ||
+ config_data->direction == TINYALSA_MIXER_DIRECTION_MODEM) {
+ if(strcmp(attr[i], "default") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_DEFAULT;
+ } else if(strcmp(attr[i], "earpiece") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_EARPIECE;
+ } else if(strcmp(attr[i], "speaker") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_SPEAKER;
+ } else if(strcmp(attr[i], "wired-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_WIRED_HEADSET;
+ } else if(strcmp(attr[i], "wired-headphone") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_WIRED_HEADPHONE;
+ } else if(strcmp(attr[i], "bt-sco") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_SCO;
+ } else if(strcmp(attr[i], "bt-sco-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+ } else if(strcmp(attr[i], "bt-sco-carkit") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+ } else if(strcmp(attr[i], "bt-a2dp") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_A2DP;
+ } else if(strcmp(attr[i], "bt-a2dp-headphones") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES;
+ } else if(strcmp(attr[i], "bt-a2dp-speaker") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER;
+ } else if(strcmp(attr[i], "aux-digital") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_AUX_DIGITAL;
+ } else if(strcmp(attr[i], "analog-dock-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET;
+ } else if(strcmp(attr[i], "digital-dock-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET;
+/*
+ * There is now FM support for Qcom devices. Now that Qcom FM is working,
+ * it may be possible to get Samsung FM working... SAMSUNG_FM_ENABLED
+ * is a temp placeholder for the ifdef. See QCOM_FM_ENABLED for an example
+ * in system/core/include/system/audio.h
+ */
+#ifdef SAMSUNG_FM_ENABLED
+ } else if(strcmp(attr[i], "fm") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_OUT_FM;
+#endif
+ } else {
+ ALOGE("Unknown device attr: %s", attr[i]);
+ }
+ } else if(config_data->direction == TINYALSA_MIXER_DIRECTION_INPUT) {
+ if(strcmp(attr[i], "default") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_DEFAULT;
+ } else if(strcmp(attr[i], "communication") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_COMMUNICATION;
+ } else if(strcmp(attr[i], "ambient") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_AMBIENT;
+ } else if(strcmp(attr[i], "builtin-mic") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_BUILTIN_MIC;
+ } else if(strcmp(attr[i], "bt-sco-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
+ } else if(strcmp(attr[i], "wired-headset") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_WIRED_HEADSET;
+ } else if(strcmp(attr[i], "aux-digital") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_AUX_DIGITAL;
+ } else if(strcmp(attr[i], "voice-call") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_VOICE_CALL;
+ } else if(strcmp(attr[i], "back-mic") == 0) {
+ config_data->device_props.type = AUDIO_DEVICE_IN_BACK_MIC;
+ } else {
+ ALOGE("Unknown device attr: %s", attr[i]);
+ }
+ }
+ } else {
+ ALOGE("Unknown device attr: %s", attr[i]);
+ }
+
+ if(config_data->device_props.type != 0) {
+ config_data->device = tinyalsa_mixer_device_alloc();
+ memcpy(&config_data->device->props, &config_data->device_props, sizeof(config_data->device_props));
+ } else {
+ ALOGE("Missing attrs for elem: %s", elem);
+ }
+ }
+ } else if(strcmp(elem, "path") == 0) {
+ for(i=0 ; attr[i] != NULL && attr[i+1] != NULL ; i++) {
+ if(strcmp(attr[i], "type") == 0) {
+ i++;
+ if(strcmp(attr[i], "enable") == 0) {
+ config_data->list_start = &config_data->device->enable;
+ } else if(strcmp(attr[i], "disable") == 0) {
+ config_data->list_start = &config_data->device->disable;
+ } else {
+ ALOGE("Unknown path attr: %s", attr[i]);
+ }
+ } else {
+ ALOGE("Unknown path attr: %s", attr[i]);
+ }
+ }
+ } else if(strcmp(elem, "ctrl") == 0) {
+ if(config_data->device != NULL && config_data->list_start != NULL) {
+ list = list_head_alloc();
+ mixer_data = tinyalsa_mixer_data_alloc();
+
+ mixer_data->type = MIXER_DATA_TYPE_CTRL;
+ list->data = (void *) mixer_data;
+ } else {
+ ALOGE("Missing device/path for elem: %s", elem);
+ return;
+ }
+
+ for(i=0 ; attr[i] != NULL && attr[i+1] != NULL ; i++) {
+ if(strcmp(attr[i], "name") == 0) {
+ i++;
+ mixer_data->name = strdup((char *) attr[i]);
+ } else if(strcmp(attr[i], "attr") == 0) {
+ i++;
+ mixer_data->attr = strdup((char *) attr[i]);
+ } else if(strcmp(attr[i], "value") == 0) {
+ i++;
+ mixer_data->value = strdup((char *) attr[i]);
+ } else {
+ ALOGE("Unknown ctrl attr: %s", attr[i]);
+ }
+ }
+
+ if(mixer_data->name != NULL && mixer_data->value != NULL) {
+ if(*config_data->list_start == NULL) {
+ *config_data->list_start = list;
+ } else {
+ config_data->list->next = list;
+ list->prev = config_data->list;
+ }
+
+ config_data->list = list;
+ } else {
+ tinyalsa_mixer_data_free(mixer_data);
+ list_head_free(list);
+ }
+ }
+}
+
+void tinyalsa_mixer_config_end(void *data, const XML_Char *elem)
+{
+ struct tinyalsa_mixer_config_data *config_data;
+ struct list_head *list_prev;
+ struct list_head *list;
+
+ if(data == NULL || elem == NULL)
+ return;
+
+ config_data = (struct tinyalsa_mixer_config_data *) data;
+
+ if(strcmp(elem, "output") == 0) {
+ memcpy(&config_data->mixer->output.props, &config_data->io_props, sizeof(config_data->io_props));
+ memset(&config_data->io_props, 0, sizeof(config_data->io_props));
+ config_data->direction = 0;
+ } else if(strcmp(elem, "input") == 0) {
+ memcpy(&config_data->mixer->input.props, &config_data->io_props, sizeof(config_data->io_props));
+ memset(&config_data->io_props, 0, sizeof(config_data->io_props));
+ config_data->direction = 0;
+ } else if(strcmp(elem, "modem") == 0) {
+ memcpy(&config_data->mixer->modem.props, &config_data->io_props, sizeof(config_data->io_props));
+ memset(&config_data->io_props, 0, sizeof(config_data->io_props));
+ config_data->direction = 0;
+ } else if(strcmp(elem, "device") == 0) {
+ // direction == 0 will fallback to out
+ if(config_data->direction == TINYALSA_MIXER_DIRECTION_OUTPUT) {
+ list = list_head_alloc();
+ list->data = (void *) config_data->device;
+
+ if(config_data->mixer->output.devices == NULL) {
+ config_data->mixer->output.devices = list;
+ } else {
+ list_prev = config_data->mixer->output.devices;
+
+ while(list_prev->next != NULL)
+ list_prev = list_prev->next;
+
+ list_prev->next = list;
+ list->prev = list_prev;
+ }
+ } else if(config_data->direction == TINYALSA_MIXER_DIRECTION_INPUT) {
+ list = list_head_alloc();
+ list->data = (void *) config_data->device;
+
+ if(config_data->mixer->input.devices == NULL) {
+ config_data->mixer->input.devices = list;
+ } else {
+ list_prev = config_data->mixer->input.devices;
+
+ while(list_prev->next != NULL)
+ list_prev = list_prev->next;
+
+ list_prev->next = list;
+ list->prev = list_prev;
+ }
+ } else if(config_data->direction == TINYALSA_MIXER_DIRECTION_MODEM) {
+ list = list_head_alloc();
+ list->data = (void *) config_data->device;
+
+ if(config_data->mixer->modem.devices == NULL) {
+ config_data->mixer->modem.devices = list;
+ } else {
+ list_prev = config_data->mixer->modem.devices;
+
+ while(list_prev->next != NULL)
+ list_prev = list_prev->next;
+
+ list_prev->next = list;
+ list->prev = list_prev;
+ }
+ }
+
+ config_data->device = NULL;
+ config_data->list = NULL;
+ } else if(strcmp(elem, "path") == 0) {
+ config_data->list_start = 0;
+ config_data->list = 0;
+ }
+}
+
+int tinyalsa_mixer_config_parse(struct tinyalsa_mixer *mixer, char *config_file)
+{
+ struct tinyalsa_mixer_config_data config_data;
+ char buf[80];
+ XML_Parser p;
+ FILE *f;
+
+ int eof = 0;
+ int len = 0;
+
+ if(mixer == NULL || config_file == NULL)
+ return -1;
+
+ f = fopen(config_file, "r");
+ if(!f) {
+ ALOGE("Failed to open tinyalsa-audio config file!");
+ return -1;
+ }
+
+ p = XML_ParserCreate(NULL);
+ if(!p) {
+ ALOGE("Failed to create XML parser!");
+ goto error_file;
+ }
+
+ memset(&config_data, 0, sizeof(config_data));
+ config_data.mixer = mixer;
+
+ XML_SetUserData(p, &config_data);
+ XML_SetElementHandler(p, tinyalsa_mixer_config_start, tinyalsa_mixer_config_end);
+
+ while(!eof) {
+ len = fread(buf, 1, sizeof(buf), f);
+ if(ferror(f)) {
+ ALOGE("Failed to read config file!");
+ goto error_xml_parser;
+ }
+
+ eof = feof(f);
+
+ if(XML_Parse(p, buf, len, eof) == XML_STATUS_ERROR) {
+ ALOGE("Failed to parse line %d: %s",
+ (int) XML_GetCurrentLineNumber(p),
+ (char *) XML_ErrorString(XML_GetErrorCode(p)));
+ goto error_xml_parser;
+ }
+ }
+
+ XML_ParserFree(p);
+ fclose(f);
+
+ return 0;
+
+error_xml_parser:
+ XML_ParserFree(p);
+
+error_file:
+ fclose(f);
+
+ return -1;
+}
+
+/*
+ * Route/Directions
+ */
+
+int tinyalsa_mixer_set_route_ctrl(struct tinyalsa_mixer *mixer,
+ struct tinyalsa_mixer_data *mixer_data)
+{
+ struct mixer_ctl *ctl;
+ int value = 0;
+ int type;
+ int rc;
+ int i;
+
+ if(mixer_data->type != MIXER_DATA_TYPE_CTRL)
+ return -1;
+
+ ctl = mixer_get_ctl_by_name(mixer->mixer, mixer_data->name);
+ type = mixer_ctl_get_type(ctl);
+
+ ALOGD("Setting %s to %s", mixer_data->name, mixer_data->value);
+
+ switch(type) {
+ case MIXER_CTL_TYPE_BOOL:
+ value = strcmp(mixer_data->value, "on") == 0 ?
+ 1 : 0;
+ break;
+ case MIXER_CTL_TYPE_INT:
+ value = atoi(mixer_data->value);
+ break;
+ case MIXER_CTL_TYPE_BYTE:
+ value = atoi(mixer_data->value) & 0xff;
+ break;
+ }
+
+ if(type == MIXER_CTL_TYPE_BOOL || type == MIXER_CTL_TYPE_INT ||
+ type == MIXER_CTL_TYPE_BYTE) {
+ for(i=0 ; i < mixer_ctl_get_num_values(ctl) ; i++) {
+ rc = mixer_ctl_set_value(ctl, i, value);
+ if(rc < 0)
+ return -1;
+ }
+ } else if(type == MIXER_CTL_TYPE_ENUM || type == MIXER_CTL_TYPE_UNKNOWN) {
+ rc = mixer_ctl_set_enum_by_string(ctl, mixer_data->value);
+ if(rc < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+int tinyalsa_mixer_set_route_list(struct tinyalsa_mixer *mixer, struct list_head *list)
+{
+ struct tinyalsa_mixer_data *mixer_data = NULL;
+ int rc;
+
+ if(mixer == NULL || mixer->mixer == NULL)
+ return -1;
+
+ while(list != NULL) {
+ mixer_data = (struct tinyalsa_mixer_data *) list->data;
+
+ if(mixer_data->type == MIXER_DATA_TYPE_CTRL) {
+ if(mixer_data->attr != NULL &&
+ strcmp(mixer_data->attr, "voice-volume") == 0) {
+ ALOGD("Skipping voice volume control");
+ } else {
+ rc = tinyalsa_mixer_set_route_ctrl(mixer, mixer_data);
+ if(rc < 0) {
+ ALOGE("Unable to set control!");
+ return -1;
+ }
+ }
+ }
+
+ if(list->next != NULL)
+ list = list->next;
+ else
+ break;
+ }
+
+ return 0;
+}
+
+int tinyalsa_mixer_set_route(struct tinyalsa_mixer *mixer,
+ struct tinyalsa_mixer_io *mixer_io, audio_devices_t device)
+{
+ struct tinyalsa_mixer_device *mixer_device = NULL;
+ struct list_head *list = NULL;
+ int rc;
+
+ if(mixer == NULL || mixer_io == NULL)
+ return -1;
+
+ ALOGD("%s(card=%d,device=%d)++",__func__,mixer_io->props.card,device);
+
+ mixer->mixer = mixer_open(mixer_io->props.card);
+ if(mixer->mixer == NULL) {
+ ALOGE("Unable to open mixer for card: %d", mixer_io->props.card);
+ return -1;
+ }
+
+
+ mixer_device = tinyalsa_mixer_get_device(mixer_io, device);
+ if(mixer_device == NULL) {
+ ALOGE("Unable to find a matching device: 0x%x", device);
+ goto error_mixer;
+ }
+
+ // No need to disable and enable the same route
+ if(mixer_device == mixer_io->device_current)
+ goto exit_mixer;
+
+ if(mixer_io->device_current != NULL) {
+ rc = tinyalsa_mixer_set_route_list(mixer, mixer_io->device_current->disable);
+ if(rc < 0) {
+ ALOGE("Unable to disable current device controls");
+ goto error_mixer;
+ }
+ }
+
+ rc = tinyalsa_mixer_set_route_list(mixer, mixer_device->enable);
+ if(rc < 0) {
+ ALOGE("Unable to enable device controls");
+ goto error_mixer;
+ }
+
+ mixer_io->device_current = mixer_device;
+
+exit_mixer:
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(card=%d,device=%d)--",__func__,mixer_io->props.card,device);
+
+ return 0;
+
+error_mixer:
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(card=%d,device=%d)-- (MIXER ERROR)",__func__,mixer_io->props.card,device);
+
+ return -1;
+}
+
+int tinyalsa_mixer_set_device_volume_with_attr(struct tinyalsa_mixer *mixer,
+ enum tinyalsa_mixer_direction direction, audio_devices_t device,
+ char *attr, float volume)
+{
+ struct tinyalsa_mixer_io *mixer_io = NULL;
+ struct tinyalsa_mixer_device *mixer_device = NULL;
+ struct tinyalsa_mixer_data *mixer_data = NULL;
+ struct list_head *list = NULL;
+ int value, value_min, value_max, values_count;
+ char *value_string = NULL;
+ int rc;
+
+ if(mixer == NULL || attr == NULL)
+ return -1;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, volume=%f)++",__func__,direction,device,attr,volume);
+
+ switch(direction) {
+ case TINYALSA_MIXER_DIRECTION_OUTPUT:
+ mixer_io = &mixer->output;
+ break;
+ case TINYALSA_MIXER_DIRECTION_INPUT:
+ mixer_io = &mixer->input;
+ break;
+ case TINYALSA_MIXER_DIRECTION_MODEM:
+ mixer_io = &mixer->modem;
+ break;
+ default:
+ ALOGE("Invalid diretion: 0x%x", direction);
+ return -1;
+ }
+
+ if(!mixer_io->state) {
+ ALOGE("Unable to set device for the asked direction: state is %d", mixer_io->state);
+ return -1;
+ }
+
+ mixer->mixer = mixer_open(mixer_io->props.card);
+ if(mixer->mixer == NULL) {
+ ALOGE("Unable to open mixer for card: %d", mixer_io->props.card);
+ return -1;
+ }
+
+ mixer_device = tinyalsa_mixer_get_device(mixer_io, device);
+ if(mixer_device == NULL) {
+ ALOGE("Unable to find a matching device: 0x%x", device);
+ goto error_mixer;
+ }
+
+ list = mixer_device->enable;
+
+ mixer_data = tinyalsa_mixer_get_data_with_attr(list, attr);
+ if(mixer_data == NULL) {
+ ALOGE("Unable to find a matching ctrl with attr: %s", attr);
+ goto error_mixer;
+ }
+
+ if(mixer_data->value == NULL) {
+ ALOGE("Missing mixer data value!");
+ goto error_mixer;
+ }
+
+ values_count = sscanf(mixer_data->value, "%d-%d", &value_min, &value_max);
+ if(values_count != 2) {
+ ALOGE("Failed to get mixer data value!");
+ goto error_mixer;
+ }
+
+ value = (value_max - value_min) * volume + value_min;
+
+ // Ugly workaround because a string value is needed
+ value_string = mixer_data->value;
+ asprintf(&mixer_data->value, "%d", value);
+
+ rc = tinyalsa_mixer_set_route_ctrl(mixer, mixer_data);
+ if(rc < 0) {
+ ALOGE("Unable to set ctrl!");
+ goto error_data;
+ }
+
+ free(mixer_data->value);
+ mixer_data->value = value_string;
+
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, volume=%f)--",__func__,direction,device,attr,volume);
+
+ return 0;
+
+error_data:
+ free(mixer_data->value);
+ mixer_data->value = value_string;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, volume=%f)-- (DATA ERROR)",__func__,direction,device,attr,volume);
+
+error_mixer:
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, volume=%f)-- (MIXER ERROR)",__func__,direction,device,attr,volume);
+
+ return -1;
+}
+
+int tinyalsa_mixer_set_device_state_with_attr(struct tinyalsa_mixer *mixer,
+ enum tinyalsa_mixer_direction direction, audio_devices_t device,
+ char *attr, int state)
+{
+ struct tinyalsa_mixer_io *mixer_io = NULL;
+ struct tinyalsa_mixer_device *mixer_device = NULL;
+ struct tinyalsa_mixer_data *mixer_data = NULL;
+ struct list_head *list = NULL;
+ int rc;
+
+ if(mixer == NULL || attr == NULL)
+ return -1;
+
+ state = state >= 1 ? 1 : 0;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, state=%d)++",__func__,direction,device,attr,state);
+
+ switch(direction) {
+ case TINYALSA_MIXER_DIRECTION_OUTPUT:
+ mixer_io = &mixer->output;
+ break;
+ case TINYALSA_MIXER_DIRECTION_INPUT:
+ mixer_io = &mixer->input;
+ break;
+ case TINYALSA_MIXER_DIRECTION_MODEM:
+ mixer_io = &mixer->modem;
+ break;
+ default:
+ ALOGE("Invalid diretion: 0x%x", direction);
+ return -1;
+ }
+
+ if(!mixer_io->state) {
+ ALOGE("Unable to set device for the asked direction: state is %d", mixer_io->state);
+ return -1;
+ }
+
+ mixer->mixer = mixer_open(mixer_io->props.card);
+ if(mixer->mixer == NULL) {
+ ALOGE("Unable to open mixer for card: %d", mixer_io->props.card);
+ return -1;
+ }
+
+ mixer_device = tinyalsa_mixer_get_device(mixer_io, device);
+ if(mixer_device == NULL) {
+ ALOGE("Unable to find a matching device: 0x%x", device);
+ goto error_mixer;
+ }
+
+ if(state)
+ list = mixer_device->enable;
+ else
+ list = mixer_device->disable;
+
+ mixer_data = tinyalsa_mixer_get_data_with_attr(list, attr);
+ if(mixer_data == NULL) {
+ ALOGE("Unable to find a matching ctrl with attr: %s", attr);
+ goto error_mixer;
+ }
+
+ rc = tinyalsa_mixer_set_route_ctrl(mixer, mixer_data);
+ if(rc < 0) {
+ ALOGE("Unable to set ctrl!");
+ goto error_mixer;
+ }
+
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, state=%d)--",__func__,direction,device,attr,state);
+
+ return 0;
+
+error_mixer:
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, device=%d, attr=%s, state=%d)-- (MIXER ERROR)",__func__,direction,device,attr,state);
+
+ return -1;
+}
+
+int tinyalsa_mixer_set_state(struct tinyalsa_mixer *mixer,
+ enum tinyalsa_mixer_direction direction, int state)
+{
+ struct tinyalsa_mixer_io *mixer_io = NULL;
+ struct tinyalsa_mixer_device *mixer_device = NULL;
+ struct list_head *list;
+ audio_devices_t default_device;
+ int rc;
+
+ if(mixer == NULL)
+ return -1;
+
+ state = state >= 1 ? 1 : 0;
+
+ ALOGD("%s(direction=%d, state=%d)++",__func__,direction,state);
+
+ switch(direction) {
+ case TINYALSA_MIXER_DIRECTION_OUTPUT:
+ mixer_io = &mixer->output;
+ default_device = AUDIO_DEVICE_OUT_DEFAULT;
+ break;
+ case TINYALSA_MIXER_DIRECTION_INPUT:
+ mixer_io = &mixer->input;
+ default_device = AUDIO_DEVICE_IN_DEFAULT;
+ break;
+ case TINYALSA_MIXER_DIRECTION_MODEM:
+ mixer_io = &mixer->modem;
+ default_device = AUDIO_DEVICE_OUT_DEFAULT;
+ break;
+ default:
+ ALOGE("Invalid diretion: 0x%x", direction);
+ return -1;
+ }
+
+ if(mixer_io->state == state) {
+ ALOGD("Current state is already: %d", state);
+ return 0;
+ }
+
+ mixer->mixer = mixer_open(mixer_io->props.card);
+ if(mixer->mixer == NULL) {
+ ALOGE("Unable to open mixer for card: %d", mixer_io->props.card);
+ return -1;
+ }
+
+ if(!state && mixer_io->device_current != NULL &&
+ mixer_io->device_current->disable != NULL) {
+ rc = tinyalsa_mixer_set_route_list(mixer, mixer_io->device_current->disable);
+ if(rc < 0) {
+ ALOGE("Unable to disable current device controls");
+ goto error_mixer;
+ }
+ }
+
+ mixer_device = tinyalsa_mixer_get_device(mixer_io, default_device);
+ if(mixer_device == NULL) {
+ ALOGD("Unable to find default device");
+ // This is not really an issue
+ }
+
+ if(state && mixer_device != NULL && mixer_device->enable != NULL) {
+ rc = tinyalsa_mixer_set_route_list(mixer, mixer_device->enable);
+ if(rc < 0) {
+ ALOGE("Unable to enable default device controls");
+ goto error_mixer;
+ }
+ } else if(!state && mixer_device != NULL) {
+ rc = tinyalsa_mixer_set_route_list(mixer, mixer_device->disable);
+ if(rc < 0) {
+ ALOGE("Unable to disable default device controls");
+ goto error_mixer;
+ }
+ }
+
+ mixer_io->device_current = NULL;
+ mixer_io->state = state;
+
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, state=%d)--",__func__,direction,state);
+
+ return 0;
+
+error_mixer:
+ mixer_close(mixer->mixer);
+ mixer->mixer = NULL;
+
+ ALOGD("%s(direction=%d, state=%d)-- (MIXER ERROR)",__func__,direction,state);
+
+ return -1;
+}
+
+/*
+ * Interface
+ */
+
+int tinyalsa_mixer_set_output_state(struct tinyalsa_mixer *mixer, int state)
+{
+ ALOGD("%s(%d)", __func__, state);
+
+ return tinyalsa_mixer_set_state(mixer, TINYALSA_MIXER_DIRECTION_OUTPUT, state);
+}
+
+int tinyalsa_mixer_set_input_state(struct tinyalsa_mixer *mixer, int state)
+{
+ ALOGD("%s(%d)", __func__, state);
+
+ return tinyalsa_mixer_set_state(mixer, TINYALSA_MIXER_DIRECTION_INPUT, state);
+}
+
+int tinyalsa_mixer_set_modem_state(struct tinyalsa_mixer *mixer, int state)
+{
+ ALOGD("%s(%d)", __func__, state);
+
+ return tinyalsa_mixer_set_state(mixer, TINYALSA_MIXER_DIRECTION_MODEM, state);
+}
+
+int tinyalsa_mixer_set_device(struct tinyalsa_mixer *mixer, audio_devices_t device)
+{
+ int rc;
+
+ ALOGD("%s(%x)", __func__, device);
+
+ if(mixer == NULL)
+ return -1;
+
+ if(!audio_is_output_device(device) && !audio_is_input_device(device)) {
+ ALOGE("Invalid device: 0x%x", device);
+ return -1;
+ }
+
+
+ if(audio_is_output_device(device) && mixer->output.state) {
+ rc = tinyalsa_mixer_set_route(mixer, &mixer->output, device);
+ if(rc < 0) {
+ ALOGE("Unable to set route for output device: 0x%x", device);
+ return -1;
+ }
+ }
+
+ if(audio_is_input_device(device) && mixer->input.state) {
+ rc = tinyalsa_mixer_set_route(mixer, &mixer->input, device);
+ if(rc < 0) {
+ ALOGE("Unable to set route for input device: 0x%x", device);
+ return -1;
+ }
+ }
+
+ if(audio_is_output_device(device) && mixer->modem.state) {
+ rc = tinyalsa_mixer_set_route(mixer, &mixer->modem, device);
+ if(rc < 0) {
+ ALOGE("Unable to set route for modem device: 0x%x", device);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int tinyalsa_mixer_set_output_volume(struct tinyalsa_mixer *mixer,
+ audio_devices_t device, float volume)
+{
+ ALOGD("%s(%p, %x, %f)", __func__, mixer, device, volume);
+
+ return tinyalsa_mixer_set_device_volume_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_OUTPUT, device,
+ "output-volume", volume);
+}
+
+int tinyalsa_mixer_set_master_volume(struct tinyalsa_mixer *mixer, float volume)
+{
+ ALOGD("%s(%p, %f)", __func__, mixer, volume);
+
+ return tinyalsa_mixer_set_device_volume_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_OUTPUT, AUDIO_DEVICE_OUT_DEFAULT,
+ "master-volume", volume);
+}
+
+int tinyalsa_mixer_set_mic_mute(struct tinyalsa_mixer *mixer,
+ audio_devices_t device, int mute)
+{
+ ALOGD("%s(%p, %x, %d)", __func__, mixer, device, mute);
+
+ // Mic mute can be set for both input and modem directions
+ if(audio_is_input_device(device)) {
+ return tinyalsa_mixer_set_device_state_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_INPUT, device,
+ "mic-mute", mute);
+ } else if(audio_is_output_device(device)) {
+ return tinyalsa_mixer_set_device_state_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_MODEM, device,
+ "mic-mute", mute);
+ } else {
+ return -1;
+ }
+}
+
+int tinyalsa_mixer_set_input_gain(struct tinyalsa_mixer *mixer,
+ audio_devices_t device, float gain)
+{
+ ALOGD("%s(%p, %x, %f)", __func__, mixer, device, gain);
+
+ return tinyalsa_mixer_set_device_volume_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_INPUT, device,
+ "input-gain", gain);
+}
+
+int tinyalsa_mixer_set_voice_volume(struct tinyalsa_mixer *mixer,
+ audio_devices_t device, float volume)
+{
+ ALOGD("%s(%p, %x, %f)", __func__, mixer, device, volume);
+
+ return tinyalsa_mixer_set_device_volume_with_attr(mixer,
+ TINYALSA_MIXER_DIRECTION_MODEM, device,
+ "voice-volume", volume);
+}
+
+audio_devices_t tinyalsa_mixer_get_supported_devices(struct tinyalsa_mixer *mixer)
+{
+ struct tinyalsa_mixer_device *mixer_device;
+ audio_devices_t devices = 0x00;
+ struct list_head *list;
+
+ ALOGD("%s(%p)", __func__, mixer);
+
+ if(mixer == NULL)
+ return -1;
+
+ list = mixer->output.devices;
+ while(list != NULL) {
+ if(list->data != NULL) {
+ mixer_device = (struct tinyalsa_mixer_device *) list->data;
+ devices |= mixer_device->props.type;
+ }
+
+ list = list->next;
+ }
+
+ list = mixer->input.devices;
+ while(list != NULL) {
+ if(list->data != NULL) {
+ mixer_device = (struct tinyalsa_mixer_device *) list->data;
+ devices |= mixer_device->props.type;
+ }
+
+ list = list->next;
+ }
+
+ list = mixer->modem.devices;
+ while(list != NULL) {
+ if(list->data != NULL) {
+ mixer_device = (struct tinyalsa_mixer_device *) list->data;
+ devices |= mixer_device->props.type;
+ }
+
+ list = list->next;
+ }
+
+ return devices;
+}
+
+struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_output_props(struct tinyalsa_mixer *mixer)
+{
+ ALOGD("%s(%p)", __func__, mixer);
+
+ return &(mixer->output.props);
+}
+
+struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_input_props(struct tinyalsa_mixer *mixer)
+{
+ ALOGD("%s(%p)", __func__, mixer);
+
+ return &(mixer->input.props);
+}
+
+struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_modem_props(struct tinyalsa_mixer *mixer)
+{
+ ALOGD("%s(%p)", __func__, mixer);
+
+ return &(mixer->modem.props);
+}
+
+void tinyalsa_mixer_close(struct tinyalsa_mixer *mixer)
+{
+ ALOGD("%s(%p)", __func__, mixer);
+
+ if(mixer == NULL)
+ return;
+
+ tinyalsa_mixer_set_output_state(mixer, 0);
+ tinyalsa_mixer_set_input_state(mixer, 0);
+ tinyalsa_mixer_set_modem_state(mixer, 0);
+
+ tinyalsa_mixer_io_free_devices(&mixer->output);
+ tinyalsa_mixer_io_free_devices(&mixer->input);
+ tinyalsa_mixer_io_free_devices(&mixer->modem);
+
+ free(mixer);
+}
+
+int tinyalsa_mixer_open(struct tinyalsa_mixer **mixer_p, char *config_file)
+{
+ struct tinyalsa_mixer *mixer = NULL;
+ int rc;
+
+ ALOGD("%s(%p, %s)", __func__, mixer_p, config_file);
+
+ if(mixer_p == NULL || config_file == NULL)
+ return -1;
+
+ mixer = calloc(1, sizeof(struct tinyalsa_mixer));
+
+ rc = tinyalsa_mixer_config_parse(mixer, config_file);
+ if(rc < 0) {
+ ALOGE("Unable to parse mixer config!");
+ goto error_mixer;
+ }
+
+ *mixer_p = mixer;
+
+ return 0;
+
+error_mixer:
+ *mixer_p = NULL;
+
+ free(mixer);
+
+ return -1;
+}
generated by cgit v1.1 at 2024-05-29 03:16:21 +0000