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st_session.c
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/* st_session.c
*
* This file contains the state machine for a single sound trigger
* user session. This state machine implements logic for handling all user
* interactions, detectinos, SSR and Audio Concurencies.
*
* Copyright (c) 2016-2021, 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 "sound_trigger_hw"
#define ATRACE_TAG (ATRACE_TAG_HAL)
/* #define LOG_NDEBUG 0 */
#define LOG_NDDEBUG 0
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <cutils/log.h>
#include <cutils/trace.h>
#include "st_session.h"
#include "st_hw_session.h"
#include "st_hw_session_lsm.h"
#include "st_hw_session_gcs.h"
#include "sound_trigger_hw.h"
#include "st_hw_session_pcm.h"
#include "st_hw_extn.h"
#include "st_hw_common.h"
#include "st_second_stage.h"
#ifdef LINUX_ENABLED
#define ST_SES_DEFERRED_STOP_DELAY_MS 0
#define ST_SES_DEFERRED_STOP_SS_DELAY_MS 0
#else
#define ST_SES_DEFERRED_STOP_DELAY_MS 1000
#define ST_SES_DEFERRED_STOP_SS_DELAY_MS 250
#endif
#define IS_SS_DETECTION_PENDING(det)\
(det & (KEYWORD_DETECTION_PENDING | USER_VERIFICATION_PENDING))
#define IS_SS_DETECTION_SUCCESS(det)\
!(det & (KEYWORD_DETECTION_REJECT | USER_VERIFICATION_REJECT))
#define IS_KEYWORD_DETECTION_MODEL(sm_id) (sm_id & ST_SM_ID_SVA_KWD)
#define IS_USER_VERIFICATION_MODEL(sm_id) (sm_id & ST_SM_ID_SVA_VOP)
#define IS_SECOND_STAGE_MODEL(sm_id)\
((sm_id & ST_SM_ID_SVA_KWD) || (sm_id & ST_SM_ID_SVA_VOP))
#define IS_MATCHING_SS_MODEL(usecase_sm_id, levels_sm_id)\
((usecase_sm_id & levels_sm_id) ||\
((usecase_sm_id & ST_SM_ID_SVA_RNN) && (levels_sm_id & ST_SM_ID_SVA_CNN)))
#define STATE_TRANSITION(st_session, new_state_fn)\
do {\
if (st_session->current_state != new_state_fn) {\
st_session->current_state = new_state_fn;\
ALOGD("session[%d]: %s ---> %s", st_session->sm_handle, __func__, \
#new_state_fn);\
}\
} while(0)
#define DISPATCH_EVENT(st_session, event, status)\
do {\
status = st_session->current_state(st_session, &event);\
} while (0)
#define REG_SM_RETRY_CNT 5
#define REG_SM_WAIT_TIME_MS 100
#define MAX_CONF_LEVEL_VALUE (100)
#define MAX_KW_USERS_NAME_LEN (2 * MAX_STRING_LEN)
/* below enum used in cleanup in error scenarios */
enum hw_session_err_mask {
HW_SES_ERR_MASK_DEVICE_SET = 0x1,
HW_SES_ERR_MASK_REG_SM = 0x2,
HW_SES_ERR_MASK_REG_SM_PARAM = 0x4,
HW_SES_ERR_MASK_STARTED = 0x8,
HW_SES_ERR_MASK_BUFFERING = 0x10,
};
typedef struct st_session_loadsm_payload {
struct sound_trigger_phrase_sound_model *phrase_sm;
} st_session_loadsm_payload_t;
typedef struct st_session_start_payload {
void *config;
size_t config_size;
recognition_callback_t callback;
void *cookie;
} st_session_start_payload_t;
typedef struct st_session_read_pcm_payload {
void *out_buff;
size_t out_buff_size;
size_t *actual_read_size;
} st_session_readpcm_payload_t;
typedef struct st_session_get_param_payload {
const char *param;
void *payload;
size_t payload_size;
size_t *param_data_size;
} st_session_getparam_payload_t;
struct st_session_ev {
st_session_event_id_t ev_id;
union {
st_session_loadsm_payload_t loadsm;
st_session_start_payload_t start;
st_hw_sess_detected_ev_t detected;
st_exec_mode_t exec_mode;
st_session_readpcm_payload_t readpcm;
enum ssr_event_status ssr;
char *chmix_coeff_str;
bool enable;
st_session_getparam_payload_t getparam;
char *module_version;
} payload;
st_session_t *stc_ses;
};
static int idle_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static int loaded_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static int active_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static int detected_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static int buffering_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static int ssr_state_fn(st_proxy_session_t *st_ses, st_session_ev_t *ev);
static inline int process_detection_event
(
st_proxy_session_t *st_ses, uint64_t timestamp, int detect_status,
void *payload, size_t payload_size,
struct sound_trigger_recognition_event **event
);
ST_DBG_DECLARE(static int file_cnt = 0);
void hw_sess_cb(st_hw_sess_event_t *hw_event, void *cookie)
{
st_proxy_session_t *st_ses = (st_proxy_session_t *)cookie;
int status = 0;
int lock_status = 0;
if (!hw_event || !cookie) {
ALOGE("%s: received NULL params", __func__);
return;
}
switch (hw_event->event_id) {
case ST_HW_SESS_EVENT_DETECTED:
{
st_session_ev_t ev;
ev.ev_id = ST_SES_EV_DETECTED;
ev.payload.detected = hw_event->payload.detected;
do {
lock_status = pthread_mutex_trylock(&st_ses->lock);
} while (lock_status && !st_ses->device_disabled &&
(st_ses->exec_mode != ST_EXEC_MODE_NONE) &&
(st_ses->current_state == active_state_fn));
if (st_ses->device_disabled) {
ALOGV("%s:[%d] device switch in progress, ignore event",
__func__, st_ses->sm_handle);
} else if (st_ses->exec_mode == ST_EXEC_MODE_NONE) {
ALOGV("%s:[%d] transition in progress, ignore event",
__func__, st_ses->sm_handle);
} else if (st_ses->current_state != active_state_fn) {
ALOGV("%s:[%d] Session not in active state, ignore event",
__func__, st_ses->sm_handle);
} else if (!lock_status) {
/*
* TODO: Add RECOGNITION_STATUS_GET_STATE_RESPONSE to
* the SoundTrigger API header.
*/
if (st_ses->detection_requested)
ev.payload.detected.detect_status = 3;
DISPATCH_EVENT(st_ses, ev, status);
}
if (!lock_status)
pthread_mutex_unlock(&st_ses->lock);
break;
}
case ST_HW_SESS_EVENT_BUFFERING_STOPPED:
{
st_session_ev_t ev;
ev.ev_id = ST_SES_EV_DEFERRED_STOP;
ev.stc_ses = st_ses->det_stc_ses;
/*
* If detection is sent to client while in buffering state,
* and if internal buffering is stopped due to errors, stop
* session internally as client is expected to restart the
* detection if required.
* Note: It is possible that detection event is not sent to
* client if second stage is not yet detected during internal
* buffering stop, in which case restart is posted from second
* stage thread for further detections. Only if the second
* stage detection hasn't be started due to internal buffering
* stop too early, restart session should be explictily issued.
*/
do {
lock_status = pthread_mutex_trylock(&st_ses->lock);
} while (lock_status && !st_ses->det_stc_ses->pending_stop &&
(st_ses->current_state == buffering_state_fn) &&
!st_ses->stdev->ssr_offline_received);
if (st_ses->det_stc_ses->pending_stop) {
ALOGV("%s:[%d] pending stop already queued, ignore event",
__func__, st_ses->sm_handle);
} else if (!lock_status && !st_ses->det_stc_ses->detection_sent &&
st_ses->current_state == buffering_state_fn) {
ev.ev_id = ST_SES_EV_RESTART;
DISPATCH_EVENT(st_ses, ev, status);
ALOGV("%s:[%d] client callback hasn't been called, restart detection evt_id(%d)",
__func__, st_ses->sm_handle, ev.ev_id);
} else if (st_ses->current_state != buffering_state_fn) {
ALOGV("%s:[%d] session already stopped buffering, ignore event",
__func__, st_ses->sm_handle);
} else if (st_ses->stdev->ssr_offline_received) {
ALOGV("%s:[%d] SSR handling in progress, ignore event",
__func__, st_ses->sm_handle);
} else if (!lock_status) {
DISPATCH_EVENT(st_ses, ev, status);
}
if (!lock_status)
pthread_mutex_unlock(&st_ses->lock);
break;
}
default:
ALOGD("%s:[%d] unhandled event", __func__, st_ses->sm_handle);
break;
};
}
static inline struct st_proxy_ses_sm_info_wrapper *get_sm_info_for_model_id
(
st_proxy_session_t *st_ses,
uint32_t model_id
)
{
struct listnode *node = NULL;
struct st_proxy_ses_sm_info_wrapper *p_info = NULL;
list_for_each(node, &st_ses->sm_info_list) {
p_info = node_to_item(node, struct st_proxy_ses_sm_info_wrapper,
sm_list_node);
if (p_info->sm_info.model_id == model_id)
return p_info;
}
return NULL;
}
static inline struct st_hw_ses_config *get_sthw_cfg_for_model_id
(
st_hw_session_t *hw_ses,
uint32_t model_id
)
{
struct listnode *node = NULL;
struct st_hw_ses_config *sthw_cfg = NULL;
list_for_each(node, &hw_ses->sthw_cfg_list) {
sthw_cfg = node_to_item(node, struct st_hw_ses_config,
sthw_cfg_list_node);
if (sthw_cfg->model_id == model_id)
return sthw_cfg;
}
return NULL;
}
static inline void free_array_ptrs(char **arr, unsigned int arr_len)
{
int i = 0;
if (!arr)
return;
for (i = 0; i < arr_len; i++) {
if (arr[i]) {
free(arr[i]);
arr[i] = NULL;
}
}
free(arr);
arr = NULL;
}
static inline void alloc_array_ptrs(char ***arr, unsigned int arr_len,
unsigned int elem_len)
{
char **str_arr = NULL;
int i = 0;
str_arr = (char **) calloc(arr_len, sizeof(char *));
if (!str_arr) {
*arr = NULL;
return;
}
for (i = 0; i < arr_len; i++) {
str_arr[i] = (char *) calloc(elem_len, sizeof(char));
if (str_arr[i] == NULL) {
free_array_ptrs(str_arr, i);
*arr = NULL;
return;
}
}
*arr = str_arr;
ALOGV("%s: string array %p", __func__, *arr);
for (i = 0; i < arr_len; i++)
ALOGV("%s: string array[%d] %p", __func__, i, (*arr)[i]);
}
static int merge_sound_models(struct sound_trigger_device *stdev,
unsigned int num_models, listen_model_type *in_models[],
listen_model_type *out_model)
{
listen_status_enum sm_ret = 0;
int status = 0;
ALOGV("%s: num_models to merge %d", __func__, num_models);
if (!stdev->smlib_handle) {
ALOGE("%s: NULL sound model lib handle", __func__);
return -ENOSYS;
}
sm_ret = stdev->smlib_getMergedModelSize(num_models, in_models,
&out_model->size);
if ((sm_ret != kSucess) || !out_model->size) {
ALOGE("%s: smlib_getMergedModelSize failed, err %d, size %d", __func__,
sm_ret, out_model->size);
return -EINVAL;
}
ALOGD("%s: merge sound model size %d", __func__, out_model->size);
out_model->data = calloc(1, out_model->size * sizeof(char));
if (!out_model->data) {
ALOGE("%s: Merged sound model allocation failed", __func__);
return -ENOMEM;
}
sm_ret = stdev->smlib_mergeModels(num_models, in_models, out_model);
if (sm_ret != kSucess) {
ALOGE("%s: smlib_mergeModels failed, err %d", __func__, sm_ret);
status = -EINVAL;
goto cleanup;
}
if (!out_model->data || !out_model->size) {
ALOGE("%s: MergeModels returned NULL data or size %d", __func__,
out_model->size);
status = -EINVAL;
goto cleanup;
}
if (stdev->enable_debug_dumps) {
ST_DBG_DECLARE(FILE *sm_fd = NULL; static int sm_cnt = 0);
ST_DBG_FILE_OPEN_WR(sm_fd, ST_DEBUG_DUMP_LOCATION,
"st_smlib_output_merged_sm", "bin", sm_cnt);
ST_DBG_FILE_WRITE(sm_fd, out_model->data, out_model->size);
ST_DBG_FILE_CLOSE(sm_fd);
ALOGD("%s: SM returned from SML merge stored in: st_smlib_output_merged_sm_%d.bin",
__func__, sm_cnt);
sm_cnt++;
}
ALOGV("%s: Exit", __func__);
return 0;
cleanup:
if (out_model->data) {
free(out_model->data);
out_model->data = NULL;
out_model->size = 0;
}
return status;
}
static int delete_from_merged_sound_model(struct sound_trigger_device *stdev,
char **keyphrases, unsigned int num_keyphrases,
listen_model_type *in_model, listen_model_type *out_model)
{
listen_model_type merge_model = {0};
listen_status_enum sm_ret = 0;
unsigned int out_model_sz = 0;
int status = 0, i = 0;
out_model->data = NULL;
out_model->size = 0;
merge_model.data = in_model->data;
merge_model.size = in_model->size;
for (i = 0; i < num_keyphrases; i++) {
sm_ret = stdev->smlib_getSizeAfterDeleting(&merge_model, keyphrases[i],
NULL, &out_model_sz);
if (sm_ret != kSucess) {
ALOGE("%s: smlib_getSizeAfterDeleting failed %d", __func__, sm_ret);
status = -EINVAL;
goto cleanup;
}
if (out_model_sz >= in_model->size) {
ALOGE("%s: unexpected, smlib_getSizeAfterDeleting returned size %d"
"not less than merged model size %d", __func__,
out_model_sz, in_model->size);
status = -EINVAL;
goto cleanup;
}
ALOGV("%s: Size after deleting kw[%d] = %d", __func__, i, out_model_sz);
if (!out_model->data) {
/* Valid if deleting multiple keyphrases one after other */
free (out_model->data);
out_model->size = 0;
}
out_model->data = calloc(1, out_model_sz * sizeof(char));
if (!out_model->data) {
ALOGE("%s: Merge sound model allocation failed, size %d ", __func__,
out_model_sz);
status = -ENOMEM;
goto cleanup;
}
out_model->size = out_model_sz;
sm_ret = stdev->smlib_deleteFromModel(&merge_model, keyphrases[i],
NULL, out_model);
if (sm_ret != kSucess) {
ALOGE("%s: smlib_getSizeAfterDeleting failed %d", __func__, sm_ret);
status = -EINVAL;
goto cleanup;
}
if (out_model->size != out_model_sz) {
ALOGE("%s: unexpected, out_model size %d != expected size %d",
__func__, out_model->size, out_model_sz);
status = -EINVAL;
goto cleanup;
}
/* Used if deleting multiple keyphrases one after other */
merge_model.data = out_model->data;
merge_model.size = out_model->size;
}
if (stdev->enable_debug_dumps && out_model->data && out_model->size) {
ST_DBG_DECLARE(FILE *sm_fd = NULL; static int sm_cnt = 0);
ST_DBG_FILE_OPEN_WR(sm_fd, ST_DEBUG_DUMP_LOCATION,
"st_smlib_output_deleted_sm", "bin", sm_cnt);
ST_DBG_FILE_WRITE(sm_fd, out_model->data, out_model->size);
ST_DBG_FILE_CLOSE(sm_fd);
ALOGD("%s: SM returned from SML delete stored in: st_smlib_output_deleted_sm_%d.bin",
__func__, sm_cnt);
sm_cnt++;
}
return 0;
cleanup:
if (out_model->data) {
free(out_model->data);
out_model->data = NULL;
}
return status;
}
static void release_sound_model_info(struct sound_model_info *sm_info)
{
ALOGV("%s", __func__);
if (sm_info->cf_levels) {
free(sm_info->cf_levels);
sm_info->cf_levels = NULL;
sm_info->det_cf_levels = NULL;
}
free_array_ptrs(sm_info->keyphrases, sm_info->num_keyphrases);
sm_info->keyphrases = NULL;
free_array_ptrs(sm_info->users, sm_info->num_users);
sm_info->users = NULL;
free_array_ptrs(sm_info->cf_levels_kw_users, sm_info->cf_levels_size);
sm_info->cf_levels_kw_users = NULL;
}
static inline void stdbg_print_sound_model_header(
listen_sound_model_header *smh)
{
int i = 0, j = 0;
ALOGV("%s", __func__);
ALOGV("numKeywords = %d", smh->numKeywords);
ALOGV("numUsers = %d", smh->numUsers);
ALOGV("numActiveUserKeywordPairs = %d", smh->numActiveUserKeywordPairs);
ALOGV("isStripped = %d", smh->isStripped);
ALOGV("model_indicator = %d", smh->model_indicator);
for (i = 0; i < smh->numKeywords; i++) {
ALOGV("kw-%d langPerKw = %d", i, smh->langPerKw[i]);
ALOGV("kw-%d numUsersSetPerKw = %d", i, smh->numUsersSetPerKw[i]);
ALOGV("kw-%d isUserDefinedKeyword = %d", i,
smh->isUserDefinedKeyword[i]);
}
if (smh->userKeywordPairFlags) {
for (i = 0; i < smh->numUsers; i++) {
for (j = 0; j < smh->numKeywords; j++)
ALOGV("userKeywordPairFlags[%d][%d] = %d", i, j,
smh->userKeywordPairFlags[i][j]);
}
}
}
static int query_sound_model(struct sound_trigger_device *stdev,
struct sound_model_info *sm_info, unsigned char *sm_data,
unsigned int sm_size)
{
listen_sound_model_header sm_header = {0};
listen_model_type model = {0};
listen_status_enum sm_ret = 0;
int status = 0, i = 0, j = 0, k = 0;
uint16_t tmp = 0;
ALOGV("%s: enter sm_size %d", __func__, sm_size);
if (!stdev->smlib_handle) {
ALOGE("%s: NULL sound model lib handle", __func__);
return -ENOSYS;
}
model.data = sm_data;
model.size = sm_size;
sm_ret = stdev->smlib_getSoundModelHeader(&model, &sm_header);
if (sm_ret != kSucess) {
ALOGE("%s: smlib_getSoundModelHeader failed, err %d ", __func__, sm_ret);
return -EINVAL;
}
if (sm_header.numKeywords == 0) {
ALOGE("%s: num keywords zero!!", __func__);
return -EINVAL;
}
if (sm_header.numActiveUserKeywordPairs < sm_header.numUsers) {
ALOGE("%s: smlib activeUserKwPairs(%d) < total users (%d)", __func__,
sm_header.numActiveUserKeywordPairs, sm_header.numUsers);
goto cleanup;
}
if (sm_header.numUsers && !sm_header.userKeywordPairFlags) {
ALOGE("%s: userKeywordPairFlags is NULL, numUsers (%d)", __func__,
sm_header.numUsers);
goto cleanup;
}
stdbg_print_sound_model_header(&sm_header);
/* MAX_STRING_LEN is part of listen sound model header file */
alloc_array_ptrs(&sm_info->keyphrases, sm_header.numKeywords,
MAX_STRING_LEN);
if (!sm_info->keyphrases) {
ALOGE("%s: keyphrases allocation failed", __func__);
status = -ENOMEM;
goto cleanup;
}
sm_info->num_keyphrases = sm_header.numKeywords;
sm_info->num_users = sm_header.numUsers;
tmp = sm_header.numKeywords;
ALOGV("%s: stdb: model.data %pK, model.size %d", __func__, model.data,
model.size);
sm_ret = stdev->smlib_getKeywordPhrases(&model, &tmp, sm_info->keyphrases);
if (sm_ret) {
ALOGE("%s: smlib_getKeywordPhrases failed, err %d ", __func__, sm_ret);
goto cleanup;
}
if (tmp != sm_header.numKeywords) {
ALOGE("%s: smlib_getkeywordPhrases(%d) != sml header (%d)", __func__,
tmp, sm_header.numKeywords);
goto cleanup;
}
for (i = 0; i < sm_header.numKeywords; i++)
ALOGV("%s: keyphrases names = %s", __func__, sm_info->keyphrases[i]);
if (sm_header.numUsers) {
alloc_array_ptrs(&sm_info->users, sm_header.numUsers, MAX_STRING_LEN);
if (!sm_info->users) {
ALOGE("%s: users allocation failed", __func__);
status = -ENOMEM;
goto cleanup;
}
tmp = sm_header.numUsers;
sm_ret = stdev->smlib_getUserNames(&model, &tmp, sm_info->users);
if (sm_ret) {
ALOGE("%s: smlib_getUserNames failed, err %d ", __func__, sm_ret);
goto cleanup;
}
if (tmp != sm_header.numUsers) {
ALOGE("%s: smlib_getUserNames(%d) != sml header (%d)", __func__,
tmp, sm_header.numUsers);
status = -EINVAL;
goto cleanup;
}
for (i = 0; i < sm_header.numUsers; i++)
ALOGV("%s: users names = %s", __func__, sm_info->users[i]);
}
sm_info->cf_levels_size = sm_header.numKeywords +
sm_header.numActiveUserKeywordPairs;
alloc_array_ptrs(&sm_info->cf_levels_kw_users, sm_info->cf_levels_size,
MAX_KW_USERS_NAME_LEN);
if (!sm_info->cf_levels_kw_users) {
ALOGE("%s: cf_levels_kw_users allocation failed", __func__);
status = -ENOMEM;
goto cleanup;
}
/* Used later for mapping client to/from merged DSP confidence levels */
sm_info->cf_levels = calloc(1, 2 * sm_info->cf_levels_size);
if (!sm_info->cf_levels) {
ALOGE("%s: cf_levels allocation failed", __func__);
status = -ENOMEM;
goto cleanup;
}
/*
* Used for updating detection confidence level values from DSP merged
* detection conf levels
*/
sm_info->det_cf_levels = sm_info->cf_levels + sm_info->cf_levels_size;
/*
* Used for conf level setting to DSP. Reset the conf value to max value,
* so that the keyword of a loaded and in-active model in a merged model
* doesn't detect.
*/
memset(sm_info->cf_levels, MAX_CONF_LEVEL_VALUE, sm_info->cf_levels_size);
/*
* Derive the confidence level payload for keyword and user pairs.
* Store the user-keyword pair names in an array that will be used for
* mapping the DSP detection and confidence levels to the client.
*/
char **kw_names = sm_info->cf_levels_kw_users;
char **ukw_names = &sm_info->cf_levels_kw_users[sm_header.numKeywords];
int ukw_idx = 0;
for (i = 0; i < sm_header.numKeywords; i++) {
strlcpy(kw_names[i], sm_info->keyphrases[i], MAX_KW_USERS_NAME_LEN);
if (!sm_header.numUsersSetPerKw)
continue;
for (j = 0, k = 0; j < sm_header.numUsers; j++) {
if (k >= sm_header.numUsersSetPerKw[i])
break;
if (sm_header.userKeywordPairFlags[j][i]) {
strlcpy(ukw_names[ukw_idx], sm_info->users[j],
MAX_KW_USERS_NAME_LEN);
strlcat(ukw_names[ukw_idx], sm_info->keyphrases[i],
MAX_KW_USERS_NAME_LEN);
ukw_idx++;
k++;
}
}
}
for (i = 0; i < sm_info->cf_levels_size; i++)
ALOGV("%s: cf_levels_kw_users = %s", __func__,
sm_info->cf_levels_kw_users[i]);
sm_ret = stdev->smlib_releaseSoundModelHeader(&sm_header);
if (sm_ret != kSucess) {
ALOGE("%s: smlib_releaseSoundModelHeader failed, err %d ", __func__,
sm_ret);
status = -EINVAL;
goto cleanup_1;
}
ALOGV("%s: exit", __func__);
return 0;
cleanup:
sm_ret = stdev->smlib_releaseSoundModelHeader(&sm_header);
if (sm_ret != kSucess)
ALOGE("%s: smlib_releaseSoundModelHeader failed, err %d ", __func__,
sm_ret);
cleanup_1:
release_sound_model_info(sm_info);
return status;
}
static int add_sound_model(st_session_t *stc_ses, unsigned char *sm_data,
unsigned int sm_size)
{
st_proxy_session_t *st_ses = stc_ses->hw_proxy_ses;
struct listnode *node = NULL;
st_session_t *c_ses = NULL;
listen_model_type **in_models = NULL;
listen_model_type out_model = {0};
struct sound_model_info sm_info = {0};
struct st_proxy_ses_sm_info_wrapper *p_info = NULL;
int status = 0, num_models = 0;
ALOGV("%s:[c%d]", __func__, stc_ses->sm_handle);
if (stc_ses->sm_info.sm_data) {
ALOGD("%s:[c%d] Already added", __func__, stc_ses->sm_handle);
return 0;
}
if (!st_ses->vendor_uuid_info->merge_fs_soundmodels ||
stc_ses->f_stage_version == ST_MODULE_TYPE_PDK5) {
stc_ses->sm_info.sm_data = sm_data;
stc_ses->sm_info.sm_size = sm_size;
stc_ses->sm_info.sm_type = stc_ses->sm_type;
stc_ses->sm_info.model_id =
(stc_ses->f_stage_version == ST_MODULE_TYPE_PDK5) ?
stc_ses->sm_handle : 0;
p_info = calloc(1, sizeof(struct st_proxy_ses_sm_info_wrapper));
if (!p_info) {
ALOGE("%s: failed to alloc struct st_proxy_ses_sm_info_wrapper",
__func__);
return -ENOMEM;
}
memcpy((uint8_t *)&p_info->sm_info, (uint8_t *)&stc_ses->sm_info,
sizeof(struct sound_model_info));
if (stc_ses->f_stage_version == ST_MODULE_TYPE_PDK5) {
st_ses->recognition_mode |= stc_ses->recognition_mode;
p_info->sm_info.cf_levels = calloc(1, 2 * MAX_MULTI_SM_CONF_LEVELS);
if (!p_info->sm_info.cf_levels) {
ALOGE("%s: failed to alloc cf_levels",
__func__);
free(p_info);
return -ENOMEM;
}
memset(p_info->sm_info.cf_levels, MAX_CONF_LEVEL_VALUE,
MAX_MULTI_SM_CONF_LEVELS);
p_info->sm_info.det_cf_levels = p_info->sm_info.cf_levels +
MAX_MULTI_SM_CONF_LEVELS;
memset(p_info->sm_info.det_cf_levels, 0,
MAX_MULTI_SM_CONF_LEVELS);
stc_ses->sm_info.cf_levels = p_info->sm_info.cf_levels;
stc_ses->sm_info.det_cf_levels = p_info->sm_info.det_cf_levels;
}
list_add_tail(&st_ses->sm_info_list, &p_info->sm_list_node);
if (stc_ses->f_stage_version == ST_MODULE_TYPE_GMM)
ALOGD("%s:[c%d] no merge", __func__, stc_ses->sm_handle);
return 0;
}
/* get sound model header information for client model */
status = query_sound_model(st_ses->stdev, &stc_ses->sm_info,
sm_data, sm_size);
if (status)
return status;
stc_ses->sm_info.sm_data = sm_data;
stc_ses->sm_info.sm_size = sm_size;
ALOGV("%s: stc_ses %pK - sm_data %pK, sm_size %d", __func__,
stc_ses, stc_ses->sm_info.sm_data,
stc_ses->sm_info.sm_size);
/* Check for remaining client sound models to merge */
list_for_each(node, &st_ses->clients_list) {
c_ses = node_to_item(node, st_session_t, hw_list_node);
if ((c_ses != stc_ses) && c_ses->sm_info.sm_data)
num_models++;
}
if (!num_models) {
p_info = calloc(1, sizeof(struct st_proxy_ses_sm_info_wrapper));
if (!p_info) {
ALOGE("%s: failed to alloc struct st_proxy_ses_sm_info_wrapper",
__func__);
return -ENOMEM;
}
st_ses->recognition_mode = stc_ses->recognition_mode;
stc_ses->sm_info.sm_type = stc_ses->sm_type;
stc_ses->sm_info.model_id = 0;
memcpy((uint8_t *)&p_info->sm_info, (uint8_t *)&stc_ses->sm_info,
sizeof(struct sound_model_info));
st_ses->sm_merged = false;
list_add_tail(&st_ses->sm_info_list, &p_info->sm_list_node);
ALOGD("%s: Copy from single client c%d model, size %d", __func__,
stc_ses->sm_handle, stc_ses->sm_info.sm_size);
return 0;
}
ALOGV("%s: num existing models %d", __func__, num_models);
/*
* Merge this client model with already existing merged model due to other
* clients models.
*/
p_info = get_sm_info_for_model_id(st_ses, 0);
if (!p_info) {
ALOGE("%s: Unexpected, no matching model_id in sm_info list,"
"num current models %d", __func__, num_models);
status = -EINVAL;
goto cleanup;
}
if (!p_info->sm_info.sm_data) {
if (num_models == 1) {
/*
* Its not a merged model yet, but proxy ses sm_data is valid
* and must be pointing to client sm_data
*/
ALOGE("%s: Unexpected, sm_data NULL, num current"
"models %d", __func__, num_models);
status = -EINVAL;
goto cleanup;
} else if (!st_ses->sm_merged) {
ALOGE("%s: Unexpected, no pre-existing merged model,"
"num current models %d", __func__, num_models);
status = -EINVAL;
goto cleanup;
}
}
/* Merge this client model with remaining clients models */
num_models = 2;/* re-use */
alloc_array_ptrs((char***)&in_models, num_models, sizeof(listen_model_type));
if (!in_models) {
ALOGE("%s: in_models allocation failed", __func__);
status = -ENOMEM;
goto cleanup;
}
/* Add existing model */
in_models[0]->data = p_info->sm_info.sm_data;
in_models[0]->size = p_info->sm_info.sm_size;
/* Add this client model */
in_models[1]->data = sm_data;
in_models[1]->size = sm_size;
status = merge_sound_models(st_ses->stdev, 2, in_models, &out_model);
if (status)
goto cleanup;
sm_info.sm_data = out_model.data;
sm_info.sm_size = out_model.size;
sm_info.model_id = 0;
status = query_sound_model(st_ses->stdev, &sm_info,
out_model.data, out_model.size);
if (status)
goto cleanup;
if (out_model.size < p_info->sm_info.sm_size) {
ALOGE("%s: Unexpected, merged model sz %d < current sz %d",
__func__, out_model.size, p_info->sm_info.sm_size);
release_sound_model_info(&sm_info);
status = -EINVAL;
goto cleanup;
}
free_array_ptrs((char **)in_models, num_models);
in_models = NULL;
/* Update the new merged model */
if (st_ses->sm_merged && p_info->sm_info.sm_data) {
release_sound_model_info(&p_info->sm_info);
free(p_info->sm_info.sm_data);
}
ALOGD("%s: Updated sound model: current size %d, new size %d", __func__,
p_info->sm_info.sm_size, out_model.size);
memcpy((uint8_t *)&p_info->sm_info, (uint8_t *)&sm_info,
sizeof(struct sound_model_info));
st_ses->sm_merged = true;
/*
* If any of the clients has user identificaiton enabled, underlying
* hw session has to operate with user identification enabled.
*/
if (stc_ses->recognition_mode & RECOGNITION_MODE_USER_IDENTIFICATION)
st_ses->recognition_mode |= stc_ses->recognition_mode;
return 0;
cleanup:
release_sound_model_info(&stc_ses->sm_info);
stc_ses->sm_info.sm_data = NULL;
if (out_model.data)
free(out_model.data);
if (in_models)
free_array_ptrs((char **)in_models, num_models);
return status;
}
static int delete_sound_model(st_session_t *stc_ses)
{
st_proxy_session_t *st_ses = stc_ses->hw_proxy_ses;
struct listnode *node = NULL;
st_session_t *c_ses = NULL, *c_ses_rem = NULL;
listen_model_type in_model = {0};
listen_model_type out_model = {0};
struct sound_model_info sm_info = {0};
struct st_proxy_ses_sm_info_wrapper *p_info = NULL;
struct st_hw_ses_config *sthw_cfg = NULL;
int status = 0, num_models = 0;
unsigned int rec_mode = RECOGNITION_MODE_VOICE_TRIGGER;
ALOGV("%s:[c%d]", __func__, stc_ses->sm_handle);
if (!stc_ses->sm_info.sm_data) {
ALOGD("%s:[c%d] Already deleted", __func__, stc_ses->sm_handle);
return 0;
}
p_info = get_sm_info_for_model_id(st_ses, stc_ses->sm_info.model_id);
if (!p_info) {
ALOGE("%s: Unexpected, no matching sm_info" , __func__);
return -EINVAL;
}
if (!st_ses->vendor_uuid_info->merge_fs_soundmodels ||
stc_ses->f_stage_version == ST_MODULE_TYPE_PDK5) {
list_remove(&p_info->sm_list_node);
/*
* As it directly points to client model, just set sm_data
* as NULL without freeing
*/
if (stc_ses->f_stage_version == ST_MODULE_TYPE_PDK5) {
/* Update overall recogniton mode from remaining clients */
list_for_each(node, &st_ses->clients_list) {
c_ses = node_to_item(node, st_session_t, hw_list_node);
if ((c_ses != stc_ses) && c_ses->sm_info.sm_data) {
if (c_ses->recognition_mode &
RECOGNITION_MODE_USER_IDENTIFICATION)
rec_mode |= RECOGNITION_MODE_USER_IDENTIFICATION;
}
}
st_ses->recognition_mode = rec_mode;
if (p_info->sm_info.cf_levels) {
free(p_info->sm_info.cf_levels);
p_info->sm_info.cf_levels = NULL;
}
}
p_info->sm_info.sm_data = NULL;
free(p_info);
stc_ses->sm_info.sm_data = NULL;
if (stc_ses->f_stage_version == ST_MODULE_TYPE_GMM)
ALOGD("%s:[c%d] no merge", __func__, stc_ses->sm_handle);
return 0;
}
ALOGV("%s: stc_ses %pK - sm_data %pK, sm_size %d", __func__,
stc_ses, stc_ses->sm_info.sm_data,
stc_ses->sm_info.sm_size);
/* Check for remaining clients sound models to merge */
list_for_each(node, &st_ses->clients_list) {
c_ses = node_to_item(node, st_session_t, hw_list_node);
if ((c_ses != stc_ses) && c_ses->sm_info.sm_data) {
c_ses_rem = c_ses;
num_models++;
}
}
if (num_models == 0) {
ALOGD("%s: No remaining models", __func__);
/* Delete current client model */
release_sound_model_info(&p_info->sm_info);
list_remove(&p_info->sm_list_node);
p_info->sm_info.sm_data = NULL;
free(p_info);
stc_ses->sm_info.sm_data = NULL;
return 0;
}
if (num_models == 1) {
ALOGD("%s: reuse only remaining client model, size %d", __func__,
c_ses_rem->sm_info.sm_size);
/* If only one remaining client model exists, re-use it */
if (st_ses->sm_merged) {
release_sound_model_info(&p_info->sm_info);