post_proc: Audiosphere SA+ concurrency implementation
Audiosphere effect cannot be used along with any other SA+
effects, and needs handling for such concurrent use cases.
Add audiosphere controls to post_proc module, here both
audiosphere and SA+ events are made available providing
easy detection and handling for concurrent use cases.
Change-Id: Ifc2ac493442dda1fbe564b066fab0710a14d1759
diff --git a/post_proc/asphere.c b/post_proc/asphere.c
new file mode 100644
index 0000000..bbf1056
--- /dev/null
+++ b/post_proc/asphere.c
@@ -0,0 +1,301 @@
+/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of The Linux Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+#define LOG_TAG "audio_pp_asphere"
+/*#define LOG_NDEBUG 0*/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <sys/stat.h>
+#include <cutils/log.h>
+#include <cutils/list.h>
+#include <cutils/str_parms.h>
+#include <cutils/properties.h>
+#include <hardware/audio_effect.h>
+#include "bundle.h"
+#include "equalizer.h"
+#include "bass_boost.h"
+#include "virtualizer.h"
+#include "reverb.h"
+#include "asphere.h"
+
+#define ASPHERE_MIXER_NAME "MSM ASphere Set Param"
+
+#define AUDIO_PARAMETER_KEY_ASPHERE_STATUS "asphere_status"
+#define AUDIO_PARAMETER_KEY_ASPHERE_ENABLE "asphere_enable"
+#define AUDIO_PARAMETER_KEY_ASPHERE_STRENGTH "asphere_strength"
+
+#define AUDIO_ASPHERE_EVENT_NODE "/data/misc/audio_pp/event_node"
+
+enum {
+ ASPHERE_ACTIVE = 0,
+ ASPHERE_SUSPENDED,
+ ASPHERE_ERROR
+};
+
+struct asphere_module {
+ bool enabled;
+ int status;
+ int strength;
+ pthread_mutex_t lock;
+ int init_status;
+};
+
+static struct asphere_module asphere;
+pthread_once_t asphere_once = PTHREAD_ONCE_INIT;
+
+static int asphere_create_app_notification_node(void)
+{
+ int fd;
+ if ((fd = open(AUDIO_ASPHERE_EVENT_NODE, O_CREAT|O_TRUNC|O_WRONLY,
+ S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0) {
+ ALOGE("creating notification node failed %d", errno);
+ return -EINVAL;
+ }
+ chmod(AUDIO_ASPHERE_EVENT_NODE, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH);
+ close(fd);
+ ALOGD("%s: successfully created notification node %s",
+ __func__, AUDIO_ASPHERE_EVENT_NODE);
+ return 0;
+}
+
+static int asphere_notify_app(void)
+{
+ int fd;
+ if ((fd = open(AUDIO_ASPHERE_EVENT_NODE, O_TRUNC|O_WRONLY)) < 0) {
+ ALOGE("opening notification node failed %d", errno);
+ return -EINVAL;
+ }
+ close(fd);
+ ALOGD("%s: successfully opened notification node", __func__);
+ return 0;
+}
+
+static int asphere_get_values_from_mixer(void)
+{
+ int ret = 0, val[2] = {-1, -1};
+ struct mixer_ctl *ctl = NULL;
+ struct mixer *mixer = mixer_open(MIXER_CARD);
+ if (mixer)
+ ctl = mixer_get_ctl_by_name(mixer, ASPHERE_MIXER_NAME);
+ if (!ctl) {
+ ALOGE("%s: could not get ctl for mixer cmd - %s",
+ __func__, ASPHERE_MIXER_NAME);
+ return -EINVAL;
+ }
+ ret = mixer_ctl_get_array(ctl, val, sizeof(val)/sizeof(val[0]));
+ if (!ret) {
+ asphere.enabled = (val[0] == 0) ? false : true;
+ asphere.strength = val[1];
+ }
+ ALOGD("%s: returned %d, enabled:%d, strength:%d",
+ __func__, ret, val[0], val[1]);
+
+ return ret;
+}
+
+static int asphere_set_values_to_mixer(void)
+{
+ int ret = 0, val[2] = {-1, -1};
+ struct mixer_ctl *ctl = NULL;
+ struct mixer *mixer = mixer_open(MIXER_CARD);
+ if (mixer)
+ ctl = mixer_get_ctl_by_name(mixer, ASPHERE_MIXER_NAME);
+ if (!ctl) {
+ ALOGE("%s: could not get ctl for mixer cmd - %s",
+ __func__, ASPHERE_MIXER_NAME);
+ return -EINVAL;
+ }
+ val[0] = ((asphere.status == ASPHERE_ACTIVE) && asphere.enabled) ? 1 : 0;
+ val[1] = asphere.strength;
+
+ ret = mixer_ctl_set_array(ctl, val, sizeof(val)/sizeof(val[0]));
+ ALOGD("%s: returned %d, enabled:%d, strength:%d",
+ __func__, ret, val[0], val[1]);
+
+ return ret;
+}
+
+static void asphere_init_once() {
+ ALOGD("%s", __func__);
+ pthread_mutex_init(&asphere.lock, NULL);
+ asphere.init_status = 1;
+ asphere_get_values_from_mixer();
+ asphere_create_app_notification_node();
+}
+
+static int asphere_init() {
+ pthread_once(&asphere_once, asphere_init_once);
+ return asphere.init_status;
+}
+
+void asphere_set_parameters(struct str_parms *parms)
+{
+ int ret = 0;
+ bool enable = false;
+ int strength = -1;
+ char value[32] = {0};
+ char propValue[PROPERTY_VALUE_MAX] = {0};
+ bool set_enable = false, set_strength = false;
+
+ if (!property_get("audio.pp.asphere.enabled", propValue, "false") ||
+ (strncmp("true", propValue, 4) != 0)) {
+ ALOGV("%s: property not set!!! not doing anything", __func__);
+ return;
+ }
+ if (asphere_init() != 1) {
+ ALOGW("%s: init check failed!!!", __func__);
+ return;
+ }
+
+ ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_ASPHERE_ENABLE,
+ value, sizeof(value));
+ if (ret > 0) {
+ enable = (atoi(value) == 1) ? true : false;
+ set_enable = true;
+ }
+
+ ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_ASPHERE_STRENGTH,
+ value, sizeof(value));
+ if (ret > 0) {
+ strength = atoi(value);
+ if (strength >= 0 && strength <= 1000)
+ set_strength = true;
+ }
+
+ if (set_enable || set_strength) {
+ pthread_mutex_lock(&asphere.lock);
+ asphere.enabled = set_enable ? enable : asphere.enabled;
+ asphere.strength = set_strength ? strength : asphere.strength;
+ ret = asphere_set_values_to_mixer();
+ pthread_mutex_unlock(&asphere.lock);
+ ALOGV("%s: exit ret %d", __func__, ret);
+ }
+}
+
+void asphere_get_parameters(struct str_parms *query,
+ struct str_parms *reply)
+{
+ char value[32] = {0};
+ char propValue[PROPERTY_VALUE_MAX] = {0};
+ int get_status, get_enable, get_strength, ret;
+
+ if (!property_get("audio.pp.asphere.enabled", propValue, "false") ||
+ (strncmp("true", propValue, 4) != 0)) {
+ ALOGV("%s: property not set!!! not doing anything", __func__);
+ return;
+ }
+ if (asphere_init() != 1) {
+ ALOGW("%s: init check failed!!!", __func__);
+ return;
+ }
+
+ ret = str_parms_get_str(query, AUDIO_PARAMETER_KEY_ASPHERE_STATUS,
+ value, sizeof(value));
+ if (ret >= 0) {
+ str_parms_add_int(reply, AUDIO_PARAMETER_KEY_ASPHERE_STATUS,
+ asphere.status);
+ }
+
+ ret = str_parms_get_str(query, AUDIO_PARAMETER_KEY_ASPHERE_ENABLE,
+ value, sizeof(value));
+ if (ret >= 0) {
+ str_parms_add_int(reply, AUDIO_PARAMETER_KEY_ASPHERE_ENABLE,
+ asphere.enabled ? 1 : 0);
+ }
+
+ ret = str_parms_get_str(query, AUDIO_PARAMETER_KEY_ASPHERE_STRENGTH,
+ value, sizeof(value));
+ if (ret >= 0) {
+ str_parms_add_int(reply, AUDIO_PARAMETER_KEY_ASPHERE_STRENGTH,
+ asphere.strength);
+ }
+}
+
+static bool effect_needs_asphere_concurrency_handling(effect_context_t *context)
+{
+ if (memcmp(&context->desc->type,
+ &equalizer_descriptor.type, sizeof(effect_uuid_t)) == 0 ||
+ memcmp(&context->desc->type,
+ &bassboost_descriptor.type, sizeof(effect_uuid_t)) == 0 ||
+ memcmp(&context->desc->type,
+ &virtualizer_descriptor.type, sizeof(effect_uuid_t)) == 0 ||
+ memcmp(&context->desc->type,
+ &ins_preset_reverb_descriptor.type, sizeof(effect_uuid_t)) == 0 ||
+ memcmp(&context->desc->type,
+ &ins_env_reverb_descriptor.type, sizeof(effect_uuid_t)) == 0)
+ return true;
+
+ return false;
+}
+
+void handle_asphere_on_effect_enabled(bool enable,
+ effect_context_t *context,
+ struct listnode *created_effects)
+{
+ struct listnode *node;
+ char propValue[PROPERTY_VALUE_MAX] = {0};
+
+ ALOGV("%s: effect %0x", __func__, context->desc->type.timeLow);
+ if (!property_get("audio.pp.asphere.enabled", propValue, "false") ||
+ (strncmp("true", propValue, 4) != 0)) {
+ ALOGV("%s: property not set!!! not doing anything", __func__);
+ return;
+ }
+ if (asphere_init() != 1) {
+ ALOGW("%s: init check failed!!!", __func__);
+ return;
+ }
+
+ if (!effect_needs_asphere_concurrency_handling(context)) {
+ ALOGV("%s: effect %0x, do not need concurrency handling",
+ __func__, context->desc->type.timeLow);
+ return;
+ }
+
+ list_for_each(node, created_effects) {
+ effect_context_t *fx_ctxt = node_to_item(node,
+ effect_context_t,
+ effects_list_node);
+ if (fx_ctxt != NULL &&
+ effect_needs_asphere_concurrency_handling(fx_ctxt) == true &&
+ fx_ctxt != context && effect_is_active(fx_ctxt) == true) {
+ ALOGV("%s: found another effect %0x, skip processing %0x", __func__,
+ fx_ctxt->desc->type.timeLow, context->desc->type.timeLow);
+ return;
+ }
+ }
+ pthread_mutex_lock(&asphere.lock);
+ asphere.status = enable ? ASPHERE_SUSPENDED : ASPHERE_ACTIVE;
+ asphere_set_values_to_mixer();
+ asphere_notify_app();
+ pthread_mutex_unlock(&asphere.lock);
+}