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