drv_gfx_dct_control.h
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/*****************************************************************************
* 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) 2007
*
* 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).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* drv_gfx_dct_control.h
*
* Project:
* --------
* Maui
*
* Description:
* ------------
* DCT control interface
*
* Author:
* -------
* -------
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*------------------------------------------------------------------------------
* removed!
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*------------------------------------------------------------------------------
* Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*============================================================================
****************************************************************************/
#ifndef __DRV_GFX_DCT_CONTROL_H__
#define __DRV_GFX_DCT_CONTROL_H__
#include "kal_general_types.h"
typedef enum
{
DCT_USER_NONE = 0,
DCT_USER_MPEG4_CODEC,
DCT_USER_JPEG_DECODER,
DCT_USER_JPEG_ENCODER
} DCT_USER_ENUM;
/**
* @brief Get the control of DCT.
* @param dct_user the user who want to use DCT.
* @return If the function succeeds, return non-zero; otherwise return zero.
* @remarks The caller MUST handle the return value properly.
*/
kal_int32 drv_gfx_open_dct(DCT_USER_ENUM dct_user);
/**
* @brief Release the control of DCT.
* @param dct_user the user who owns the control of DCT.
* @return If the function succeeds, returns non-zero; otherwise returns zero.
* @remarks The caller MUST handle the return value properly.
*/
kal_int32 drv_gfx_close_dct(DCT_USER_ENUM dct_user);
/**
* @brief Preempt the control of DCT from current DCT user.
* @param dct_user the user who want to preempt the control of DCT.
* @return If the function succeeds, returns non-zero; otherwise returns zero.
* @remarks It is a blocking function. After the function returns, the control of DCT will owned by dct_user.
*/
kal_int32 drv_gfx_preempt_dct(DCT_USER_ENUM dct_user);
/**
* @brief Check the preemption status of DCT.
* @param dct_user the user who want to check the preemption status.
* @return If DCT is under preempting state, return 1; otherwise return 0.
* @remarks
*/
kal_int32 drv_gfx_check_dct_preemption(DCT_USER_ENUM dct_user);
#endif