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replicant-device_samsung_ga.../tinyalsa_audio/mixer.c
Paul Kocialkowski 487c86bd61 Mixer: Set the next elements routes when one failed 
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

Conflicts:

	tinyalsa_audio/mixer.c
2013-05-25 17:47:37 +01:00

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/*
* 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 <fcntl.h>
#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);
}
} else if(strcmp(elem, "write") == 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_WRITE;
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], "value") == 0) {
i++;
mixer_data->value = strdup((char *) attr[i]);
} else {
ALOGE("Unknown write 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_write(struct tinyalsa_mixer *mixer,
struct tinyalsa_mixer_data *mixer_data)
{
char *buffer = NULL;
int fd;
if(mixer_data->type != MIXER_DATA_TYPE_WRITE)
return -1;
ALOGD("Writing %s to %s", mixer_data->value, mixer_data->name);
asprintf(&buffer, "%s\n", mixer_data->value);
if(buffer == NULL)
return -1;
fd = open(mixer_data->name, O_WRONLY);
if(fd < 0) {
free(buffer);
return -1;
}
write(fd, buffer, strlen(buffer) + 1);
free(buffer);
close(fd);
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;
ALOGE("Unable to set control!");
goto list_continue;
}
}
} else if(mixer_data->type == MIXER_DATA_TYPE_WRITE) {
rc = tinyalsa_mixer_set_route_write(mixer, mixer_data);
if(rc < 0) {
ALOGE("Unable to write!");
goto list_continue;
}
}
list_continue:
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);
}
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;
}
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