/*
* Copyright (c) 2008-2016 Allwinner Technology Co. Ltd.
* All rights reserved.
*
* File : ionAlloc.c
* Description :
* History :
*   Author  : weihai <liweihai@allwinnertech.com>
*   Date    : 2017/07/21
*   Comment :
*
*
*/

#ifndef _ION_ALLOCATOR_
#define _ION_ALLOCATOR_

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <time.h>
#include <sys/mman.h>
#include <pthread.h>
#include <asm-generic/ioctl.h>

#ifdef CONF_KERNEL_VERSION_3_10
typedef int aw_ion_user_handle_t;
#else
typedef void* aw_ion_user_handle_t;
#endif


typedef struct aw_ion_allocation_info
{
    size_t aw_len;
    size_t aw_align;
    unsigned int aw_heap_id_mask;
    unsigned int flags;
    aw_ion_user_handle_t handle;
} aw_ion_allocation_info_t;

typedef struct ion_handle_data
{
    aw_ion_user_handle_t handle;
} ion_handle_data_t ;

typedef struct aw_ion_fd_data
{
    aw_ion_user_handle_t handle;
    int aw_fd;
} ion_fd_data_t;

typedef struct aw_ion_custom_info
{
    unsigned int aw_cmd;
    unsigned long aw_arg;
} ion_custom_data_t;

typedef struct SUNXI_PHYS_DATA
{
    aw_ion_user_handle_t handle;
    unsigned int  phys_addr;
    unsigned int  size;
} sunxi_phys_data;


typedef struct
{
    long    start;
    long    end;
} sunxi_cache_range;

#define SZ_64M        0x04000000
#define SZ_4M        0x00400000
#define SZ_1M        0x00100000
#define SZ_64K        0x00010000
#define SZ_4k       0x00001000
#define SZ_1k       0x00000400

enum ion_heap_type
{
    AW_ION_SYSTEM_HEAP_TYPE,
    AW_ION_SYSTEM_CONTIG_HEAP_TYPE,
    AW_ION_CARVEOUT_HEAP_TYPE,
    AW_ION_TYPE_HEAP_CHUNK,
    AW_ION_TYPE_HEAP_DMA,
    AW_ION_TYPE_HEAP_CUSTOM,

    AW_ION_TYPE_HEAP_SECURE,

    AW_ION_NUM_HEAPS = 16,/* must be last so device specific heaps always
                              are at the end of this enum */
};

#define AW_MEM_ION_IOC_MAGIC        'I'
#define AW_MEM_ION_IOC_ALLOC        _IOWR(AW_MEM_ION_IOC_MAGIC, 0, struct aw_ion_allocation_info)
#define AW_MEM_ION_IOC_FREE        _IOWR(AW_MEM_ION_IOC_MAGIC, 1, struct ion_handle_data)
#define AW_MEM_ION_IOC_MAP            _IOWR(AW_MEM_ION_IOC_MAGIC, 2, struct aw_ion_fd_data)
#define AW_MEMION_IOC_SHARE        _IOWR(AW_MEM_ION_IOC_MAGIC, 4, struct aw_ion_fd_data)
#define AW_MEMION_IOC_IMPORT        _IOWR(AW_MEM_ION_IOC_MAGIC, 5, struct ion_fd_data)
#define AW_MEMION_IOC_SYNC        _IOWR(AW_MEM_ION_IOC_MAGIC, 7, struct ion_fd_data)
#define AW_MEM_ION_IOC_CUSTOM        _IOWR(AW_MEM_ION_IOC_MAGIC, 6, struct aw_ion_custom_info)

#define AW_ION_CACHED_FLAG 1
/* mappings of this buffer should be cached,
ion will do cache maintenance when the buffer is mapped for dma */
#define AW_ION_CACHED_NEEDS_SYNC_FLAG 2
/* mappings of this buffer will created at mmap time,
if this is set caches must be managed manually */

#define ION_IOC_SUNXI_FLUSH_RANGE           5
#define ION_IOC_SUNXI_FLUSH_ALL             6
#define ION_IOC_SUNXI_PHYS_ADDR             7
#define ION_IOC_SUNXI_DMA_COPY              8

#define ION_IOC_SUNXI_TEE_ADDR              17
#define AW_ION_SYSTEM_HEAP_MASK        (1 << ION_HEAP_TYPE_SYSTEM)
#define AW_ION_SYSTEM_CONTIG_HEAP_MASK    (1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
#define AW_ION_CARVEOUT_HEAP_MASK        (1 << AW_ION_CARVEOUT_HEAP_TYPE)
#define AW_ION_DMA_HEAP_MASK        (1 << AW_ION_TYPE_HEAP_DMA)
#define AW_ION_SECURE_HEAP_MASK      (1 << AW_ION_TYPE_HEAP_SECURE)

int CdxIonOpen();

void CdxIonClose();

// return virtual address: 0 failed
void* CdxIonPalloc(int size);

void CdxIonPfree(void * pbuf);

void* CdxIonVir2Phy(void * pbuf);

int CdxIonPhy2ShareFd(void * pbuf);

void* CdxIonPhy2Vir(void * pbuf);

void CdxIonFlushCache(void* startAddr, int size);

void CdxIonFlushAll();

void* CdxIonDrm(int size);

//return total meminfo with MB
int CdxIonGetTotalSize();

#endif//  _ION_ALLOCATOR_