support.c

MTK平台绝密核心代码之 外设管理（红外线）

/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
*  LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
*  OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
*  MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. 
*
*  THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
*  LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
*  RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
#include "kal_release.h"      /* Basic data type */

/*
********************************************************
* Description: swap the integer byte order for packet data that is in
               little endian format ( IrLAN )
* Arguments  : kal_uint16 value
* Returns    : kal_uint16: swapped value
* Notes      : used to convert LITTLE endian packet integer to network byte order 
********************************************************
*/
kal_uint16 Swap_int_order_li(kal_uint16 value)
{
#ifdef BIG
    return ((value&0xff) << 8) | ((kal_uint16)value >> 8);
#else
    return(value);
#endif
}


/*
********************************************************
* Description: swap the integer byte order
* Arguments  : kal_uint16 value
* Returns    : kal_uint16: swapped value
* Notes      : used to convert LITTLE endian (Intel processors ) to network byte order 
********************************************************
*/
kal_uint16 Swap_int_order(kal_uint16 value)
{
#ifdef BIG
    return(value);
#else
    return ((value&0xff) << 8) | ((kal_uint16)value >> 8);
#endif
}

/*
********************************************************
* Description: swap the long byte order
* Arguments  : kal_uint32 value
* Returns    : kal_uint32: swapped value
* Notes      : used to convert LITTLE endian (Intel processors) to network byte order 
********************************************************
*/
kal_uint32 Swap_long_order(kal_uint32 value)
{
#ifdef BIG
    return(value);
#else
    return ((kal_uint32)value<<24) | (((kal_uint32)value&0xff00)<<8) |
        ((kal_uint32)value>>8)&0xff00 | ((kal_uint32)value>>24);
#endif
}