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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 <string.h>
#include <errno.h>
#include "syscfg/syscfg.h"
#include "os/os.h"
#include "host/ble_hs_id.h"
#include "ble_hs_priv.h"
#if MYNEWT_VAL(BLE_PERIODIC_ADV)
static SLIST_HEAD(, ble_hs_periodic_sync) g_ble_hs_periodic_sync_handles;
static struct os_mempool ble_hs_periodic_sync_pool;
static os_membuf_t ble_hs_psync_elem_mem[
OS_MEMPOOL_SIZE(MYNEWT_VAL(BLE_MAX_PERIODIC_SYNCS),
sizeof (struct ble_hs_periodic_sync))
];
struct ble_hs_periodic_sync *
ble_hs_periodic_sync_alloc(void)
{
struct ble_hs_periodic_sync *psync;
psync = os_memblock_get(&ble_hs_periodic_sync_pool);
if (psync) {
memset(psync, 0, sizeof(*psync));
}
return psync;
}
void
ble_hs_periodic_sync_free(struct ble_hs_periodic_sync *psync)
{
int rc;
if (psync == NULL) {
return;
}
#if MYNEWT_VAL(BLE_HS_DEBUG)
memset(psync, 0xff, sizeof *psync);
#endif
rc = os_memblock_put(&ble_hs_periodic_sync_pool, psync);
BLE_HS_DBG_ASSERT_EVAL(rc == 0);
}
void
ble_hs_periodic_sync_insert(struct ble_hs_periodic_sync *psync)
{
BLE_HS_DBG_ASSERT(ble_hs_locked_by_cur_task());
BLE_HS_DBG_ASSERT_EVAL(
ble_hs_periodic_sync_find_by_handle(psync->sync_handle) == NULL);
SLIST_INSERT_HEAD(&g_ble_hs_periodic_sync_handles, psync, next);
}
void
ble_hs_periodic_sync_remove(struct ble_hs_periodic_sync *psync)
{
BLE_HS_DBG_ASSERT(ble_hs_locked_by_cur_task());
SLIST_REMOVE(&g_ble_hs_periodic_sync_handles, psync, ble_hs_periodic_sync,
next);
}
struct ble_hs_periodic_sync *
ble_hs_periodic_sync_find_by_handle(uint16_t sync_handle)
{
struct ble_hs_periodic_sync *psync;
BLE_HS_DBG_ASSERT(ble_hs_locked_by_cur_task());
SLIST_FOREACH(psync, &g_ble_hs_periodic_sync_handles, next) {
if (psync->sync_handle == sync_handle) {
return psync;
}
}
return NULL;
}
struct ble_hs_periodic_sync *
ble_hs_periodic_sync_find(const ble_addr_t *addr, uint8_t sid)
{
struct ble_hs_periodic_sync *psync;
BLE_HS_DBG_ASSERT(ble_hs_locked_by_cur_task());
if (!addr) {
return NULL;
}
SLIST_FOREACH(psync, &g_ble_hs_periodic_sync_handles, next) {
if ((ble_addr_cmp(&psync->advertiser_addr, addr) == 0) &&
(psync->adv_sid == sid)) {
return psync;
}
}
return NULL;
}
/**
* Retrieves the first periodic discovery handle in the list.
*/
struct ble_hs_periodic_sync *
ble_hs_periodic_sync_first(void)
{
struct ble_hs_periodic_sync *psync;
ble_hs_lock();
psync = SLIST_FIRST(&g_ble_hs_periodic_sync_handles);
ble_hs_unlock();
return psync;
}
int
ble_hs_periodic_sync_init(void)
{
int rc;
rc = os_mempool_init(&ble_hs_periodic_sync_pool,
MYNEWT_VAL(BLE_MAX_PERIODIC_SYNCS),
sizeof (struct ble_hs_periodic_sync),
ble_hs_psync_elem_mem, "ble_hs_periodic_disc_pool");
if (rc != 0) {
return BLE_HS_EOS;
}
SLIST_INIT(&g_ble_hs_periodic_sync_handles);
return 0;
}
#endif
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