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/****************************************************************************
* (C) Copyright 2008 Samsung Electronics Co., Ltd., All rights reserved
*
* @file s3c-otg-hcdi-list.h
* @brief list functions for otg
* @version
* -# Jun 9,2008 v1.0 by SeungSoo Yang (ss1.yang@samsung.com)
* : Creating the initial version of this code
* -# Jul 15,2008 v1.2 by SeungSoo Yang (ss1.yang@samsung.com)
* : Optimizing for performance
* @see None
****************************************************************************/
/****************************************************************************
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
****************************************************************************/
#ifndef _S3C_OTG_HCDI_LIST_H_
#define _S3C_OTG_HCDI_LIST_H_
#include <linux/list.h>
typedef struct list_head otg_list_head;
#define otg_list_get_node(ptr, type, member) container_of(ptr, type, member)
#define otg_list_for_each_safe(pos, n, head) \
for (pos = (head)->next, n = pos->next; pos != (head); \
pos = n, n = pos->next)
/**
* void otg_list_push_next(otg_list_head *n, otg_list_head *list)
*
* @brief push a list node into the next of head
*
* @param [in] n : node to be pushed
* @param [in] otg_list_head : target list head
*
* @return void \n
*/
static inline
void otg_list_push_next(otg_list_head *n, otg_list_head *list)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_push_next\n");
list_add(n, list);
}
/**
* void otg_list_push_prev(otg_list_head *n, otg_list_head *list)
*
* @brief push a list node into the previous of head
*
* @param [in] n : node to be pushed
* @param [in] otg_list_head : target list head
*
* @return void \n
*/
static inline
void otg_list_push_prev(otg_list_head *n, otg_list_head *list)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_push_prev\n");
list_add_tail(n, list);
}
/**
* void otg_list_pop(otg_list_head *list_entity_p)
*
* @brief pop a list node
*
* @param [in] n : node to be poped
* @param [in] otg_list_head : target list head
*
* @return void \n
*/
static inline
void otg_list_pop(otg_list_head *list_entity_p)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_pop\n");
if (list_entity_p->prev && list_entity_p->next)
list_del(list_entity_p);
else
pr_info("usb: otg_list_pop error\n");
}
/**
* void otg_list_move_next(otg_list_head *node_p, otg_list_head *list)
*
* @brief move a list to next of head
*
* @param [in] n : node to be moved
* @param [in] otg_list_head : target list head
*
* @return void \n
*/
static inline
void otg_list_move_next(otg_list_head *node_p, otg_list_head *list)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_move_next\n");
list_move(node_p, list);
}
/**
* void otg_list_move_prev(otg_list_head *node_p, otg_list_head *list)
*
* @brief move a list to previous of head
*
* @param [in] n : node to be moved
* @param [in] otg_list_head : target list head
*
* @return void \n
*/
static inline
void otg_list_move_prev(otg_list_head *node_p, otg_list_head *list)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_move_prev\n");
list_move_tail(node_p, list);
}
/**
* bool otg_list_empty(otg_list_head *list)
*
* @brief check a list empty or not
*
* @param [in] list : node to check
*
* @return true : empty list \n
* false : not empty list
*/
static inline
bool otg_list_empty(otg_list_head *list)
{
/* otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_empty\n"); */
if (list_empty(list))
return true;
return false;
}
/**
* void otg_list_merge(otg_list_head *list_p, otg_list_head *head_p)
*
* @brief merge two list
*
* @param [in] list_p : a head
* @param [in] head_p : target list head
*
* @return void \n
*/
static inline
void otg_list_merge(otg_list_head *list_p, otg_list_head *head_p)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_merge\n");
list_splice(list_p, head_p);
}
/**
* void otg_list_init(otg_list_head *list_p)
*
* @brief initialize a list
*
* @param [in] list_p : node to be initialized
*
* @return void \n
*/
static inline
void otg_list_init(otg_list_head *list_p)
{
otg_dbg(OTG_DBG_OTGHCDI_LIST, "otg_list_init\n");
list_p->next = list_p;
list_p->prev = list_p;
}
#endif /* _S3C_OTG_HCDI_LIST_H_ */
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