/*
* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
*
* This source code is subject to the terms and conditions defined in below
* which is part of this source code package.
*
* Description:
*/

// Copyright (C) 2019 Amlogic, Inc. All rights reserved.
//
// All information contained herein is Amlogic confidential.
//
// This software is provided to you pursuant to Software License
// Agreement (SLA) with Amlogic Inc ("Amlogic"). This software may be
// used only in accordance with the terms of this agreement.
//
// Redistribution and use in source and binary forms, with or without
// modification is strictly prohibited without prior written permission
// from Amlogic.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef __TEST_DMA_API_H__
#define __TEST_DMA_API_H__

#define WORD_SIZE 16
#define WORD_MASK (~(WORD_SIZE - 1))
#define AXI_WORD_ALIGN(size) ((size + WORD_SIZE - 1) & WORD_MASK)

enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

typedef unsigned int uint32_t;

/* for gdc dma buf define */
struct dmabuf_req_s {
	int index;
	unsigned int len;
	unsigned int dma_dir;
};

struct dmabuf_exp_s {
	int index;
	unsigned int flags;
	int fd;
};
/* end of gdc dma buffer define */

#define GDC_IOC_MAGIC 'G'

#define GDC_REQUEST_DMA_BUFF _IOW(GDC_IOC_MAGIC, 0x06, struct dmabuf_req_s)
#define GDC_EXP_DMA_BUFF _IOW(GDC_IOC_MAGIC, 0x07, struct dmabuf_exp_s)
#define GDC_FREE_DMA_BUFF _IOW(GDC_IOC_MAGIC, 0x08, int)
#define GDC_SYNC_DEVICE _IOW(GDC_IOC_MAGIC, 0x09, int)
#define GDC_SYNC_CPU _IOW(GDC_IOC_MAGIC, 0x0a, int)

enum {
	INPUT_BUFF_TYPE = 0x1000,
	OUTPUT_BUFF_TYPE,
	CONFIG_BUFF_TYPE,
	GDC_BUFF_TYPE_MAX
};
typedef unsigned long ulong;
struct usr_ctx_s {
	// currently do not support multi-context
	int gdc_client;
	int ion_client;
	char *i_buff[3];
	char *o_buff;
	char *c_buff;
	void *cmemParm[3];
	ulong i_len[3];
	ulong o_len;
	ulong c_len;
	int fd[3];
	int inbuf_num;
};

/**
 *   This function create a contex for gdc work.
 *
 *   @param  ctx - contains client of gdc and ion.
 *
 *   @return 0 - success
 *           -1 - fail
 */
int create_ctx(struct usr_ctx_s *ctx);

/**
 *   This function points gdc to its input resolution and yuv address and
 * offsets
 *
 *   @param  gdc_settings - overall gdc settings
 *   @param  in_buf_fd    - input buffer's fd
 *   @param  out_buf_fd   - output buffer's fd
 *
 *   @return 0 - success
 *           -1 - no interrupt from GDC.
 */
int destroy_ctx(struct usr_ctx_s *ctx);

/**
 *   This function points gdc to its input resolution and yuv address and
 * offsets
 *
 *   @param  ctx - contains client of gdc and ion.
 *   @param  share_fd - buffer's fd
 *   @param  len - buffer's size
 *
 *   @return 0 - success
 *           -1 - no interrupt from GDC.
 */
int alloc_dma_buffer(struct usr_ctx_s *ctx, uint32_t type, size_t len);

int sync_cpu(struct usr_ctx_s *ctx);
#endif