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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*/
#ifndef _VDEC_VPU_IF_H_
#define _VDEC_VPU_IF_H_
#include "mtk_vcodec_fw.h"
struct mtk_vcodec_ctx;
/**
* struct vdec_vpu_inst - VPU instance for video codec
* @id : ipi msg id for each decoder
* @core_id : core id used to separate different hardware
* @vsi : driver structure allocated by VPU side and shared to AP side
* for control and info share
* @failure : VPU execution result status, 0: success, others: fail
* @inst_addr : VPU decoder instance address
* @fw_abi_version : ABI version of the firmware.
* @inst_id : if fw_abi_version >= 2, contains the instance ID to be given
* in place of inst_addr in messages.
* @signaled : 1 - Host has received ack message from VPU, 0 - not received
* @ctx : context for v4l2 layer integration
* @dev : platform device of VPU
* @wq : wait queue to wait VPU message ack
* @handler : ipi handler for each decoder
* @codec_type : use codec type to separate different codecs
*/
struct vdec_vpu_inst {
int id;
int core_id;
void *vsi;
int32_t failure;
uint32_t inst_addr;
uint32_t fw_abi_version;
uint32_t inst_id;
unsigned int signaled;
struct mtk_vcodec_ctx *ctx;
wait_queue_head_t wq;
mtk_vcodec_ipi_handler handler;
unsigned int codec_type;
};
/**
* vpu_dec_init - init decoder instance and allocate required resource in VPU.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_init(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_start - start decoding, basically the function will be invoked once
* every frame.
*
* @vpu : instance for vdec_vpu_inst
* @data: meta data to pass bitstream info to VPU decoder
* @len : meta data length
*/
int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len);
/**
* vpu_dec_end - end decoding, basically the function will be invoked once
* when HW decoding done interrupt received successfully. The
* decoder in VPU will continue to do reference frame management
* and check if there is a new decoded frame available to display.
*
* @vpu : instance for vdec_vpu_inst
*/
int vpu_dec_end(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_deinit - deinit decoder instance and resource freed in VPU.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_deinit(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_reset - reset decoder, use for flush decoder when end of stream or
* seek. Remainig non displayed frame will be pushed to display.
*
* @vpu: instance for vdec_vpu_inst
*/
int vpu_dec_reset(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_core - core start decoding, basically the function will be invoked once
* every frame.
*
* @vpu : instance for vdec_vpu_inst
*/
int vpu_dec_core(struct vdec_vpu_inst *vpu);
/**
* vpu_dec_core_end - core end decoding, basically the function will be invoked once
* when core HW decoding done and receive interrupt successfully. The
* decoder in VPU will updata hardware information and deinit hardware
* and check if there is a new decoded frame available to display.
*
* @vpu : instance for vdec_vpu_inst
*/
int vpu_dec_core_end(struct vdec_vpu_inst *vpu);
#endif
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