1 /* Copyright (c) 2012, The Linux Foundation. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer in the documentation and/or other materials provided 11 * with the distribution. 12 * * Neither the name of The Linux Foundation nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 /* This file is a slave copy from /vendor/qcom/propreitary/mm-cammera/common, 31 * Please do not modify it directly here. */ 32 33 #ifndef __CAMLIST_H 34 #define __CAMLIST_H 35 36 #include <stddef.h> 37 38 #define member_of(ptr, type, member) ({ \ 39 const typeof(((type *)0)->member) *__mptr = (ptr); \ 40 (type *)((char *)__mptr - offsetof(type,member));}) 41 42 struct cam_list { 43 struct cam_list *next, *prev; 44 }; 45 46 static inline void cam_list_init(struct cam_list *ptr) 47 { 48 ptr->next = ptr; 49 ptr->prev = ptr; 50 } 51 52 static inline void cam_list_add_tail_node(struct cam_list *item, 53 struct cam_list *head) 54 { 55 struct cam_list *prev = head->prev; 56 57 head->prev = item; 58 item->next = head; 59 item->prev = prev; 60 prev->next = item; 61 } 62 63 static inline void cam_list_insert_before_node(struct cam_list *item, 64 struct cam_list *node) 65 { 66 item->next = node; 67 item->prev = node->prev; 68 item->prev->next = item; 69 node->prev = item; 70 } 71 72 static inline void cam_list_del_node(struct cam_list *ptr) 73 { 74 struct cam_list *prev = ptr->prev; 75 struct cam_list *next = ptr->next; 76 77 next->prev = ptr->prev; 78 prev->next = ptr->next; 79 ptr->next = ptr; 80 ptr->prev = ptr; 81 } 82 83 #endif /* __CAMLIST_H */ 84
