26d39cd107
Move controller code from drivers/controller to subsys/bluetooth/controller. Change-Id: I73f675188485aa3267507bad7647796e593a3da0 Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
97 lines
2.0 KiB
C
97 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2016 Nordic Semiconductor ASA
|
|
* Copyright (c) 2016 Vinayak Kariappa Chettimada
|
|
*
|
|
* 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 <stdint.h>
|
|
|
|
void *memq_init(void *link, void **head, void **tail)
|
|
{
|
|
/* head and tail pointer to the initial link node */
|
|
*head = *tail = link;
|
|
|
|
return link;
|
|
}
|
|
|
|
void *memq_enqueue(void *mem, void *link, void **tail)
|
|
{
|
|
/* make the current tail link node point to new link node */
|
|
*((void **)*tail) = link;
|
|
|
|
/* assign mem to current tail link node */
|
|
*((void **)*tail + 1) = mem;
|
|
|
|
/* increment the tail! */
|
|
*tail = link;
|
|
|
|
return link;
|
|
}
|
|
|
|
void *memq_dequeue(void *tail, void **head, void **mem)
|
|
{
|
|
void *link;
|
|
|
|
/* if head and tail are equal, then queue empty */
|
|
if (*head == tail) {
|
|
return 0;
|
|
}
|
|
|
|
/* pick the head link node */
|
|
link = *head;
|
|
|
|
/* extract the element node */
|
|
if (mem) {
|
|
*mem = *((void **)link + 1);
|
|
}
|
|
|
|
/* increment the head to next link node */
|
|
*head = *((void **)link);
|
|
|
|
return link;
|
|
}
|
|
|
|
uint32_t memq_ut(void)
|
|
{
|
|
void *head;
|
|
void *tail;
|
|
void *link;
|
|
void *link_0[2];
|
|
void *link_1[2];
|
|
|
|
link = memq_init(&link_0[0], &head, &tail);
|
|
if ((link != &link_0[0]) || (head != &link_0[0])
|
|
|| (tail != &link_0[0])) {
|
|
return 1;
|
|
}
|
|
|
|
link = memq_dequeue(tail, &head, 0);
|
|
if ((link) || (head != &link_0[0])) {
|
|
return 2;
|
|
}
|
|
|
|
link = memq_enqueue(0, &link_1[0], &tail);
|
|
if ((link != &link_1[0]) || (tail != &link_1[0])) {
|
|
return 3;
|
|
}
|
|
|
|
link = memq_dequeue(tail, &head, 0);
|
|
if ((link != &link_0[0]) || (tail != &link_1[0])
|
|
|| (head != &link_1[0])) {
|
|
return 4;
|
|
}
|
|
|
|
return 0;
|
|
}
|