esp-idf/components/bt/common/osi/alarm.c
“YangZhao” 12ec4866b8 Fix the high-impact issues from the code analysis report from customer.
For the CID10564,10384,10280,10098,10038,The memory was released in other place.
For the CID10365,it release the memory in the function when sent successfully.
For the CID10268,10011, we need not change the code.
2021-11-22 17:38:02 +08:00

332 lines
8.7 KiB
C

/******************************************************************************
*
* Copyright (C) 2014 Google, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "osi/alarm.h"
#include "osi/allocator.h"
#include "osi/list.h"
#include "esp_timer.h"
#include "btc/btc_task.h"
#include "btc/btc_alarm.h"
#include "osi/mutex.h"
#include "bt_common.h"
typedef struct alarm_t {
/* timer id point to here */
esp_timer_handle_t alarm_hdl;
osi_alarm_callback_t cb;
void *cb_data;
int64_t deadline_us;
} osi_alarm_t;
enum {
ALARM_STATE_IDLE,
ALARM_STATE_OPEN,
};
static osi_mutex_t alarm_mutex;
static int alarm_state;
#if (BT_BLE_DYNAMIC_ENV_MEMORY == FALSE)
static struct alarm_t alarm_cbs[ALARM_CBS_NUM];
#else
static struct alarm_t *alarm_cbs;
#endif
static osi_alarm_err_t alarm_free(osi_alarm_t *alarm);
static osi_alarm_err_t alarm_set(osi_alarm_t *alarm, period_ms_t timeout, bool is_periodic);
int osi_alarm_create_mux(void)
{
if (alarm_state != ALARM_STATE_IDLE) {
OSI_TRACE_WARNING("%s, invalid state %d\n", __func__, alarm_state);
return -1;
}
osi_mutex_new(&alarm_mutex);
return 0;
}
int osi_alarm_delete_mux(void)
{
if (alarm_state != ALARM_STATE_IDLE) {
OSI_TRACE_WARNING("%s, invalid state %d\n", __func__, alarm_state);
return -1;
}
osi_mutex_free(&alarm_mutex);
return 0;
}
void osi_alarm_init(void)
{
assert(alarm_mutex != NULL);
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_IDLE) {
OSI_TRACE_WARNING("%s, invalid state %d\n", __func__, alarm_state);
goto end;
}
#if (BT_BLE_DYNAMIC_ENV_MEMORY == TRUE)
if ((alarm_cbs = (osi_alarm_t *)osi_malloc(sizeof(osi_alarm_t) * ALARM_CBS_NUM)) == NULL) {
OSI_TRACE_ERROR("%s, malloc failed\n", __func__);
goto end;
}
#endif
memset(alarm_cbs, 0x00, sizeof(osi_alarm_t) * ALARM_CBS_NUM);
alarm_state = ALARM_STATE_OPEN;
end:
osi_mutex_unlock(&alarm_mutex);
}
void osi_alarm_deinit(void)
{
assert(alarm_mutex != NULL);
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_WARNING("%s, invalid state %d\n", __func__, alarm_state);
goto end;
}
for (int i = 0; i < ALARM_CBS_NUM; i++) {
if (alarm_cbs[i].alarm_hdl != NULL) {
alarm_free(&alarm_cbs[i]);
}
}
#if (BT_BLE_DYNAMIC_ENV_MEMORY == TRUE)
osi_free(alarm_cbs);
alarm_cbs = NULL;
#endif
alarm_state = ALARM_STATE_IDLE;
end:
osi_mutex_unlock(&alarm_mutex);
}
static struct alarm_t *alarm_cbs_lookfor_available(void)
{
int i;
for (i = 0; i < ALARM_CBS_NUM; i++) {
if (alarm_cbs[i].alarm_hdl == NULL) { //available
OSI_TRACE_DEBUG("%s %d %p\n", __func__, i, &alarm_cbs[i]);
return &alarm_cbs[i];
}
}
return NULL;
}
static void alarm_cb_handler(struct alarm_t *alarm)
{
OSI_TRACE_DEBUG("TimerID %p\n", alarm);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_WARNING("%s, invalid state %d\n", __func__, alarm_state);
return;
}
btc_msg_t msg = {0};
btc_alarm_args_t arg;
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_ALARM;
arg.cb = alarm->cb;
arg.cb_data = alarm->cb_data;
btc_transfer_context(&msg, &arg, sizeof(btc_alarm_args_t), NULL);
}
osi_alarm_t *osi_alarm_new(const char *alarm_name, osi_alarm_callback_t callback, void *data, period_ms_t timer_expire)
{
assert(alarm_mutex != NULL);
struct alarm_t *timer_id = NULL;
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_ERROR("%s, invalid state %d\n", __func__, alarm_state);
timer_id = NULL;
goto end;
}
timer_id = alarm_cbs_lookfor_available();
if (!timer_id) {
OSI_TRACE_ERROR("%s alarm_cbs exhausted\n", __func__);
timer_id = NULL;
goto end;
}
esp_timer_create_args_t tca = {0};
tca.callback = (esp_timer_cb_t)alarm_cb_handler;
tca.arg = timer_id;
tca.dispatch_method = ESP_TIMER_TASK;
tca.name = alarm_name;
timer_id->cb = callback;
timer_id->cb_data = data;
timer_id->deadline_us = 0;
esp_err_t stat = esp_timer_create(&tca, &timer_id->alarm_hdl);
if (stat != ESP_OK) {
OSI_TRACE_ERROR("%s failed to create timer, err 0x%x\n", __func__, stat);
timer_id = NULL;
goto end;
}
end:
osi_mutex_unlock(&alarm_mutex);
return timer_id;
}
static osi_alarm_err_t alarm_free(osi_alarm_t *alarm)
{
if (!alarm || alarm->alarm_hdl == NULL) {
OSI_TRACE_ERROR("%s null\n", __func__);
return OSI_ALARM_ERR_INVALID_ARG;
}
esp_timer_stop(alarm->alarm_hdl);
esp_err_t stat = esp_timer_delete(alarm->alarm_hdl);
if (stat != ESP_OK) {
OSI_TRACE_ERROR("%s failed to delete timer, err 0x%x\n", __func__, stat);
return OSI_ALARM_ERR_FAIL;
}
memset(alarm, 0, sizeof(osi_alarm_t));
return OSI_ALARM_ERR_PASS;
}
void osi_alarm_free(osi_alarm_t *alarm)
{
assert(alarm_mutex != NULL);
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_ERROR("%s, invalid state %d\n", __func__, alarm_state);
goto end;
}
alarm_free(alarm);
end:
osi_mutex_unlock(&alarm_mutex);
return;
}
static osi_alarm_err_t alarm_set(osi_alarm_t *alarm, period_ms_t timeout, bool is_periodic)
{
assert(alarm_mutex != NULL);
osi_alarm_err_t ret = OSI_ALARM_ERR_PASS;
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_ERROR("%s, invalid state %d\n", __func__, alarm_state);
ret = OSI_ALARM_ERR_INVALID_STATE;
goto end;
}
if (!alarm || alarm->alarm_hdl == NULL) {
OSI_TRACE_ERROR("%s null\n", __func__);
ret = OSI_ALARM_ERR_INVALID_ARG;
goto end;
}
int64_t timeout_us = 1000 * (int64_t)timeout;
esp_err_t stat;
if (is_periodic) {
stat = esp_timer_start_periodic(alarm->alarm_hdl, (uint64_t)timeout_us);
} else {
stat = esp_timer_start_once(alarm->alarm_hdl, (uint64_t)timeout_us);
}
if (stat != ESP_OK) {
OSI_TRACE_ERROR("%s failed to start timer, err 0x%x\n", __func__, stat);
ret = OSI_ALARM_ERR_FAIL;
goto end;
}
alarm->deadline_us = is_periodic ? 0 : (timeout_us + esp_timer_get_time());
end:
osi_mutex_unlock(&alarm_mutex);
return ret;
}
osi_alarm_err_t osi_alarm_set(osi_alarm_t *alarm, period_ms_t timeout)
{
return alarm_set(alarm, timeout, FALSE);
}
osi_alarm_err_t osi_alarm_set_periodic(osi_alarm_t *alarm, period_ms_t period)
{
return alarm_set(alarm, period, TRUE);
}
osi_alarm_err_t osi_alarm_cancel(osi_alarm_t *alarm)
{
int ret = OSI_ALARM_ERR_PASS;
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (alarm_state != ALARM_STATE_OPEN) {
OSI_TRACE_ERROR("%s, invalid state %d\n", __func__, alarm_state);
ret = OSI_ALARM_ERR_INVALID_STATE;
goto end;
}
if (!alarm || alarm->alarm_hdl == NULL) {
OSI_TRACE_ERROR("%s null\n", __func__);
ret = OSI_ALARM_ERR_INVALID_ARG;
goto end;
}
esp_err_t stat = esp_timer_stop(alarm->alarm_hdl);
if (stat != ESP_OK) {
OSI_TRACE_DEBUG("%s failed to stop timer, err 0x%x\n", __func__, stat);
ret = OSI_ALARM_ERR_FAIL;
goto end;
}
end:
osi_mutex_unlock(&alarm_mutex);
return ret;
}
period_ms_t osi_alarm_get_remaining_ms(const osi_alarm_t *alarm)
{
assert(alarm_mutex != NULL);
int64_t dt_us = 0;
osi_mutex_lock(&alarm_mutex, OSI_MUTEX_MAX_TIMEOUT);
dt_us = alarm->deadline_us - esp_timer_get_time();
osi_mutex_unlock(&alarm_mutex);
return (dt_us > 0) ? (period_ms_t)(dt_us / 1000) : 0;
}
uint32_t osi_time_get_os_boottime_ms(void)
{
return (uint32_t)(esp_timer_get_time() / 1000);
}
bool osi_alarm_is_active(osi_alarm_t *alarm)
{
assert(alarm != NULL);
if (alarm->alarm_hdl != NULL) {
return esp_timer_is_active(alarm->alarm_hdl);
}
return false;
}