| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (c) 2016 MediaTek Inc. |
| * Author: PC Chen <pc.chen@mediatek.com> |
| */ |
| |
| #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 continue to do reference 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); |
| |
| #endif |
