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590577a4e5
Add v4l2 layer decoder driver for MT8173 [mchehab@s-opensource.com: make checkpatch.pl happy] Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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_vpu.h"
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/**
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* struct vdec_vpu_inst - VPU instance for video codec
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* @ipi_id : ipi 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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enum ipi_id 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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struct platform_device *dev;
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wait_queue_head_t wq;
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ipi_handler_t 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 continute to do referene 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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/**
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* vpu_dec_ipi_handler - Handler for VPU ipi message.
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*
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* @data: ipi message
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* @len : length of ipi message
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* @priv: callback private data which is passed by decoder when register.
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*/
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void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv);
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#endif
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