mirror of https://gitee.com/openkylin/linux.git
97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 2016 MediaTek Inc.
|
|
* Author: PC Chen <pc.chen@mediatek.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License 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 _VDEC_VPU_IF_H_
|
|
#define _VDEC_VPU_IF_H_
|
|
|
|
#include "mtk_vpu.h"
|
|
|
|
/**
|
|
* struct vdec_vpu_inst - VPU instance for video codec
|
|
* @ipi_id : ipi id for each decoder
|
|
* @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
|
|
* @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
|
|
*/
|
|
struct vdec_vpu_inst {
|
|
enum ipi_id id;
|
|
void *vsi;
|
|
int32_t failure;
|
|
uint32_t inst_addr;
|
|
unsigned int signaled;
|
|
struct mtk_vcodec_ctx *ctx;
|
|
struct platform_device *dev;
|
|
wait_queue_head_t wq;
|
|
ipi_handler_t handler;
|
|
};
|
|
|
|
/**
|
|
* 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 continute to do referene 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_ipi_handler - Handler for VPU ipi message.
|
|
*
|
|
* @data: ipi message
|
|
* @len : length of ipi message
|
|
* @priv: callback private data which is passed by decoder when register.
|
|
*/
|
|
void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv);
|
|
|
|
#endif
|