/*****************************************************************************
*  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
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*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
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*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 *   visual_comm.c
 *
 * Project:
 * --------
 *		MT6218B and MT6219
 *
 * Description:
 * ------------
 *   common memory management code for MT6218B and MT6219
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *============================================================================
 ****************************************************************************/

#include "kal_general_types.h"
#include "drvpdn.h"
#include "kal_public_api.h"
#include "visual_comm.h"
#include "drv_features_mdp.h"
#include "idp_core.h"

#if !defined(L1_NOT_PRESENT)
#if defined(MTK_SLEEP_ENABLE)
#include "l1sm_public.h"
#endif
#endif

VISUAL_MEM_STRUCT visual_mem;
static kal_uint8 slp_handle;
#if defined(__MTK_TARGET__) && defined(__DCM_WITH_COMPRESSION_MAUI_INIT__)
#pragma push
#pragma arm section code="DYNAMIC_COMP_MAUIINIT_SECTION"
#endif 

void Visual_Init(void)
{
    visual_hisr_init();
#ifdef DRV_IDP_SUPPORT
    idp_init();
#endif

#ifdef MTK_SLEEP_ENABLE
   slp_handle = L1SM_GetHandle();
#endif   /*MTK_SLEEP_ENABLE*/
}
#if defined(__MTK_TARGET__) && defined(__DCM_WITH_COMPRESSION_MAUI_INIT__)
#pragma arm section code
#pragma pop
#endif

void extmem_init(void *start_ptr,kal_uint32 length)
{
    ASSERT( (((kal_uint32)start_ptr&0x03)==0)&&(visual_mem.ext_ram_init==KAL_FALSE) );
    visual_mem.ext_ram_start_ptr = (kal_uint32 *)start_ptr;
    visual_mem.ext_ram_total_length = length;
    visual_mem.ext_ram_index = 0;
    visual_mem.ext_ram_init = KAL_TRUE;
}

void *extmem_get_buffer(kal_uint32 size)
{
    void *ptr;
    ptr = (void *)&visual_mem.ext_ram_start_ptr[visual_mem.ext_ram_index];
    visual_mem.ext_ram_index += ((size+3)>>2);
    if ((visual_mem.ext_ram_index*4) > visual_mem.ext_ram_total_length)
        ASSERT(0);
    return ptr;
}
/*  
 *  This function will check if exterm buffer is full when you want to allocate the size.
 *   
 *  @param  size    the size that you want to allocate
 *  @return KAL_FLASE : extmem is full
 *          KAL_TRUE: extmem is enough to work done.
 * 
 */
kal_bool extmem_is_buffer_available(kal_uint32 size)
{
	if (((visual_mem.ext_ram_index+((size+3)>>2))*4) > visual_mem.ext_ram_total_length)
		return KAL_FALSE;
	else
		return KAL_TRUE;
}

void extmem_deinit(void)
{
	visual_mem.ext_ram_total_length = 0;
	visual_mem.ext_ram_init = KAL_FALSE;
}

void intmem_init(void *start_ptr,kal_uint32 length)
{
	ASSERT( (((kal_uint32)start_ptr&0x03)==0)&&(visual_mem.int_ram_init==KAL_FALSE) );
	visual_mem.int_ram_start_ptr = (kal_uint32 *)start_ptr;
	visual_mem.int_ram_total_length = length;
	visual_mem.int_ram_index = 0;
	visual_mem.int_ram_init = KAL_TRUE;
}

void *intmem_get_buffer(kal_uint32 size)
{
    void *ptr;
    ptr = (void *)&visual_mem.int_ram_start_ptr[visual_mem.int_ram_index];
    visual_mem.int_ram_index += (((size+3)>>2));
    if ((visual_mem.int_ram_index*4) > visual_mem.int_ram_total_length)
    {
		    ASSERT(0);
	}
	
    return ptr;
}

void intmem_deinit(void)
{
   visual_mem.int_ram_total_length = 0;
   visual_mem.int_ram_init = KAL_FALSE;
}

void visual_disable_sleep(void)
{
#ifdef __MTK_TARGET__
   #ifdef MTK_SLEEP_ENABLE
      L1SM_SleepDisable(slp_handle);
   #endif /*MTK_SLEEP_ENABLE*/
#endif /*__MTK_TARGET__*/
}

void visual_enable_sleep(void)
{
#ifdef __MTK_TARGET__
   #ifdef MTK_SLEEP_ENABLE
      L1SM_SleepEnable(slp_handle);
   #endif /*MTK_SLEEP_ENABLE*/
#endif /*__MTK_TARGET__*/
}