1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2016 MediaTek Inc.
4 * Author: PC Chen <pc.chen@mediatek.com>
7 #ifndef _VDEC_VPU_IF_H_
8 #define _VDEC_VPU_IF_H_
10 #include "mtk_vcodec_fw.h"
12 struct mtk_vcodec_ctx;
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
34 struct vdec_vpu_inst {
40 uint32_t fw_abi_version;
42 unsigned int signaled;
43 struct mtk_vcodec_ctx *ctx;
45 mtk_vcodec_ipi_handler handler;
46 unsigned int codec_type;
47 unsigned int capture_type;
48 unsigned int fb_sz[2];
52 * vpu_dec_init - init decoder instance and allocate required resource in VPU.
54 * @vpu: instance for vdec_vpu_inst
56 int vpu_dec_init(struct vdec_vpu_inst *vpu);
59 * vpu_dec_start - start decoding, basically the function will be invoked once
62 * @vpu : instance for vdec_vpu_inst
63 * @data: meta data to pass bitstream info to VPU decoder
64 * @len : meta data length
66 int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len);
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.
74 * @vpu : instance for vdec_vpu_inst
76 int vpu_dec_end(struct vdec_vpu_inst *vpu);
79 * vpu_dec_deinit - deinit decoder instance and resource freed in VPU.
81 * @vpu: instance for vdec_vpu_inst
83 int vpu_dec_deinit(struct vdec_vpu_inst *vpu);
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.
89 * @vpu: instance for vdec_vpu_inst
91 int vpu_dec_reset(struct vdec_vpu_inst *vpu);
94 * vpu_dec_core - core start decoding, basically the function will be invoked once
97 * @vpu : instance for vdec_vpu_inst
99 int vpu_dec_core(struct vdec_vpu_inst *vpu);
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.
107 * @vpu : instance for vdec_vpu_inst
109 int vpu_dec_core_end(struct vdec_vpu_inst *vpu);
112 * vpu_dec_get_param - get param from scp
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
119 int vpu_dec_get_param(struct vdec_vpu_inst *vpu, uint32_t *data,
120 unsigned int len, unsigned int param_type);