vdec_vpu_if.h (3892B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright (c) 2016 MediaTek Inc. 4 * Author: PC Chen <pc.chen@mediatek.com> 5 */ 6 7#ifndef _VDEC_VPU_IF_H_ 8#define _VDEC_VPU_IF_H_ 9 10#include "mtk_vcodec_fw.h" 11 12struct mtk_vcodec_ctx; 13 14/** 15 * struct vdec_vpu_inst - VPU instance for video codec 16 * @id : ipi msg id for each decoder 17 * @core_id : core id used to separate different hardware 18 * @vsi : driver structure allocated by VPU side and shared to AP side 19 * for control and info share 20 * @failure : VPU execution result status, 0: success, others: fail 21 * @inst_addr : VPU decoder instance address 22 * @fw_abi_version : ABI version of the firmware. 23 * @inst_id : if fw_abi_version >= 2, contains the instance ID to be given 24 * in place of inst_addr in messages. 25 * @signaled : 1 - Host has received ack message from VPU, 0 - not received 26 * @ctx : context for v4l2 layer integration 27 * @dev : platform device of VPU 28 * @wq : wait queue to wait VPU message ack 29 * @handler : ipi handler for each decoder 30 * @codec_type : use codec type to separate different codecs 31 * @capture_type: used capture type to separate different capture format 32 * @fb_sz : frame buffer size of each plane 33 */ 34struct vdec_vpu_inst { 35 int id; 36 int core_id; 37 void *vsi; 38 int32_t failure; 39 uint32_t inst_addr; 40 uint32_t fw_abi_version; 41 uint32_t inst_id; 42 unsigned int signaled; 43 struct mtk_vcodec_ctx *ctx; 44 wait_queue_head_t wq; 45 mtk_vcodec_ipi_handler handler; 46 unsigned int codec_type; 47 unsigned int capture_type; 48 unsigned int fb_sz[2]; 49}; 50 51/** 52 * vpu_dec_init - init decoder instance and allocate required resource in VPU. 53 * 54 * @vpu: instance for vdec_vpu_inst 55 */ 56int vpu_dec_init(struct vdec_vpu_inst *vpu); 57 58/** 59 * vpu_dec_start - start decoding, basically the function will be invoked once 60 * every frame. 61 * 62 * @vpu : instance for vdec_vpu_inst 63 * @data: meta data to pass bitstream info to VPU decoder 64 * @len : meta data length 65 */ 66int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len); 67 68/** 69 * vpu_dec_end - end decoding, basically the function will be invoked once 70 * when HW decoding done interrupt received successfully. The 71 * decoder in VPU will continue to do reference frame management 72 * and check if there is a new decoded frame available to display. 73 * 74 * @vpu : instance for vdec_vpu_inst 75 */ 76int vpu_dec_end(struct vdec_vpu_inst *vpu); 77 78/** 79 * vpu_dec_deinit - deinit decoder instance and resource freed in VPU. 80 * 81 * @vpu: instance for vdec_vpu_inst 82 */ 83int vpu_dec_deinit(struct vdec_vpu_inst *vpu); 84 85/** 86 * vpu_dec_reset - reset decoder, use for flush decoder when end of stream or 87 * seek. Remainig non displayed frame will be pushed to display. 88 * 89 * @vpu: instance for vdec_vpu_inst 90 */ 91int vpu_dec_reset(struct vdec_vpu_inst *vpu); 92 93/** 94 * vpu_dec_core - core start decoding, basically the function will be invoked once 95 * every frame. 96 * 97 * @vpu : instance for vdec_vpu_inst 98 */ 99int vpu_dec_core(struct vdec_vpu_inst *vpu); 100 101/** 102 * vpu_dec_core_end - core end decoding, basically the function will be invoked once 103 * when core HW decoding done and receive interrupt successfully. The 104 * decoder in VPU will updata hardware information and deinit hardware 105 * and check if there is a new decoded frame available to display. 106 * 107 * @vpu : instance for vdec_vpu_inst 108 */ 109int vpu_dec_core_end(struct vdec_vpu_inst *vpu); 110 111/** 112 * vpu_dec_get_param - get param from scp 113 * 114 * @vpu : instance for vdec_vpu_inst 115 * @data: meta data to pass bitstream info to VPU decoder 116 * @len : meta data length 117 * @param_type : get param type 118 */ 119int vpu_dec_get_param(struct vdec_vpu_inst *vpu, uint32_t *data, 120 unsigned int len, unsigned int param_type); 121 122#endif