/* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#ifndef _MSM_VIDC_H_
#define _MSM_VIDC_H_

#include <linux/poll.h>
#include <linux/videodev2.h>
#include <linux/types.h>
#include <linux/msm_ion.h>
#include <uapi/media/msm_vidc.h>

#define HAL_BUFFER_MAX 0xb

enum smem_type {
	SMEM_ION,
};

enum smem_prop {
	SMEM_CACHED,
	SMEM_SECURE,
};

/* NOTE: if you change this enum you MUST update the
 * "buffer-type-tz-usage-table" for any affected target
 * in arch/arm/boot/dts/<arch>.dtsi
 */
enum hal_buffer {
	HAL_BUFFER_NONE = 0x0,
	HAL_BUFFER_INPUT = 0x1,
	HAL_BUFFER_OUTPUT = 0x2,
	HAL_BUFFER_OUTPUT2 = 0x4,
	HAL_BUFFER_EXTRADATA_INPUT = 0x8,
	HAL_BUFFER_EXTRADATA_OUTPUT = 0x10,
	HAL_BUFFER_EXTRADATA_OUTPUT2 = 0x20,
	HAL_BUFFER_INTERNAL_SCRATCH = 0x40,
	HAL_BUFFER_INTERNAL_SCRATCH_1 = 0x80,
	HAL_BUFFER_INTERNAL_SCRATCH_2 = 0x100,
	HAL_BUFFER_INTERNAL_PERSIST = 0x200,
	HAL_BUFFER_INTERNAL_PERSIST_1 = 0x400,
	HAL_BUFFER_INTERNAL_CMD_QUEUE = 0x800,
};

struct dma_mapping_info {
	struct device *dev;
	struct dma_iommu_mapping *mapping;
	struct sg_table *table;
	struct dma_buf_attachment *attach;
	struct dma_buf *buf;
};

struct msm_smem {
	int mem_type;
	size_t size;
	void *kvaddr;
	ion_phys_addr_t device_addr;
	unsigned long flags;
	void *smem_priv;
	enum hal_buffer buffer_type;
	struct dma_mapping_info mapping_info;
};

enum smem_cache_ops {
	SMEM_CACHE_CLEAN,
	SMEM_CACHE_INVALIDATE,
	SMEM_CACHE_CLEAN_INVALIDATE,
};

enum core_id {
	MSM_VIDC_CORE_VENUS = 0,
	MSM_VIDC_CORE_Q6,
	MSM_VIDC_CORES_MAX,
};
enum session_type {
	MSM_VIDC_ENCODER = 0,
	MSM_VIDC_DECODER,
	MSM_VIDC_UNKNOWN,
	MSM_VIDC_MAX_DEVICES = MSM_VIDC_UNKNOWN,
};

union msm_v4l2_cmd {
	struct v4l2_decoder_cmd dec;
	struct v4l2_encoder_cmd enc;
};

void *msm_vidc_open(int core_id, int session_type);
int msm_vidc_close(void *instance);
int msm_vidc_suspend(int core_id);
int msm_vidc_querycap(void *instance, struct v4l2_capability *cap);
int msm_vidc_enum_fmt(void *instance, struct v4l2_fmtdesc *f);
int msm_vidc_s_fmt(void *instance, struct v4l2_format *f);
int msm_vidc_g_fmt(void *instance, struct v4l2_format *f);
int msm_vidc_s_ctrl(void *instance, struct v4l2_control *a);
int msm_vidc_s_ext_ctrl(void *instance, struct v4l2_ext_controls *a);
int msm_vidc_g_ctrl(void *instance, struct v4l2_control *a);
int msm_vidc_reqbufs(void *instance, struct v4l2_requestbuffers *b);
int msm_vidc_prepare_buf(void *instance, struct v4l2_buffer *b);
int msm_vidc_release_buffers(void *instance, int buffer_type);
int msm_vidc_qbuf(void *instance, struct v4l2_buffer *b);
int msm_vidc_dqbuf(void *instance, struct v4l2_buffer *b);
int msm_vidc_streamon(void *instance, enum v4l2_buf_type i);
int msm_vidc_streamoff(void *instance, enum v4l2_buf_type i);
int msm_vidc_comm_cmd(void *instance, union msm_v4l2_cmd *cmd);
int msm_vidc_poll(void *instance, struct file *filp,
		struct poll_table_struct *pt);
int msm_vidc_subscribe_event(void *instance,
		const struct v4l2_event_subscription *sub);
int msm_vidc_unsubscribe_event(void *instance,
		const struct v4l2_event_subscription *sub);
int msm_vidc_dqevent(void *instance, struct v4l2_event *event);
int msm_vidc_enum_framesizes(void *instance, struct v4l2_frmsizeenum *fsize);
#endif