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105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/* 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_VCU_IF_H_
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#define _VDEC_VCU_IF_H_
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#include <linux/dma-buf.h>
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#include "mtk_vcu.h"
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#include "vdec_ipi_msg.h"
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/**
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* struct vdec_vcu_inst - VCU instance for video codec
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* @wq : wait queue to wait VCU message ack
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* @ipi_id : ipi id for decoder or encoder
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* @vsi : driver structure allocated by VCU side and shared to AP side
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* for control and info share
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* @failure : VCU execution result status, 0: success, others: fail
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* @inst_addr : VCU decoder instance address
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* @signaled : 1 - Host has received ack message from VCU, 0 - not received
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* @ctx : context for v4l2 layer integration
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* @dev : platform device of VCU
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* @handler : ipi handler for each decoder
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* @abort : abort when vpud crashed stop this instance ipi_msg
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*/
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struct vdec_vcu_inst {
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wait_queue_head_t wq;
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wait_queue_head_t wq_res;
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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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unsigned int signaled_res;
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struct mtk_vcodec_ctx *ctx;
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struct platform_device *dev;
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ipi_handler_t handler;
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bool abort;
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int daemon_pid;
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struct mutex *ctx_ipi_lock;
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struct list_head bufs;
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};
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/**
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* vcu_dec_init - init decoder instance and allocate required resource in VCU.
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*
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* @vcu: instance for vdec_vcu_inst
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*/
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int vcu_dec_init(struct vdec_vcu_inst *vcu);
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/**
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* vcu_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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* @vcu : instance for vdec_vcu_inst
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* @data: meta data to pass bitstream info to VCU decoder
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* @len : meta data length
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*/
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int vcu_dec_start(struct vdec_vcu_inst *vcu,
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uint32_t *data, unsigned int len,
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struct mtk_vcodec_mem *bs, struct vdec_fb *fb);
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/**
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* vcu_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 VCU 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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* @vcu : instance for vdec_vcu_inst
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*/
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int vcu_dec_end(struct vdec_vcu_inst *vcu);
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/**
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* vcu_dec_deinit - deinit decoder instance and resource freed in VCU.
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*
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* @vcu: instance for vdec_vcu_inst
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*/
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int vcu_dec_deinit(struct vdec_vcu_inst *vcu);
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/**
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* vcu_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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* @vcu: instance for vdec_vcu_inst
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* @drain_type: flush (0), drain (1), drain with EOS (2)
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*/
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int vcu_dec_reset(struct vdec_vcu_inst *vcu, enum vdec_reset_type drain_type);
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/**
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* vcu_dec_ipi_handler - Handler for VCU 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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int vcu_dec_ipi_handler(void *data, unsigned int len, void *priv);
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int vcu_dec_query_cap(struct vdec_vcu_inst *vcu, unsigned int id, void *out);
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int vcu_dec_set_param(struct vdec_vcu_inst *vcu, unsigned int id,
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void *param, unsigned int size);
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int vcu_dec_set_frame_buffer(struct vdec_vcu_inst *vcu, void *fb);
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#endif
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