/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2021 MediaTek Inc. * Author: Yunfei Dong <[email protected]> */ #ifndef _VDEC_MSG_QUEUE_H_ #define _VDEC_MSG_QUEUE_H_ #include <linux/sched.h> #include <linux/semaphore.h> #include <linux/slab.h> #include <media/videobuf2-v4l2.h> #define NUM_BUFFER_COUNT … struct vdec_lat_buf; struct mtk_vcodec_dec_ctx; struct mtk_vcodec_dec_dev; core_decode_cb_t; /** * enum core_ctx_status - Context decode status for core hardwre. * @CONTEXT_LIST_EMPTY: No buffer queued on core hardware(must always be 0) * @CONTEXT_LIST_QUEUED: Buffer queued to core work list * @CONTEXT_LIST_DEC_DONE: context decode done */ enum core_ctx_status { … }; /** * struct vdec_msg_queue_ctx - represents a queue for buffers ready to be processed * @ready_to_use: ready used queue used to signalize when get a job queue * @ready_queue: list of ready lat buffer queues * @ready_lock: spin lock to protect the lat buffer usage * @ready_num: number of buffers ready to be processed * @hardware_index: hardware id that this queue is used for */ struct vdec_msg_queue_ctx { … }; /** * struct vdec_lat_buf - lat buffer message used to store lat info for core decode * @wdma_err_addr: wdma error address used for lat hardware * @slice_bc_addr: slice bc address used for lat hardware * @rd_mv_addr: mv addr for av1 lat hardware output, core hardware input * @tile_addr: tile buffer for av1 core input * @ts_info: need to set timestamp from output to capture * @src_buf_req: output buffer media request object * * @private_data: shared information used to lat and core hardware * @ctx: mtk vcodec context information * @core_decode: different codec use different decode callback function * @lat_list: add lat buffer to lat head list * @core_list: add lat buffer to core head list * * @is_last_frame: meaning this buffer is the last frame */ struct vdec_lat_buf { … }; /** * struct vdec_msg_queue - used to store lat buffer message * @lat_buf: lat buffer used to store lat buffer information * @wdma_addr: wdma address used for ube * @wdma_rptr_addr: ube read point * @wdma_wptr_addr: ube write point * @core_work: core hardware work * @lat_ctx: used to store lat buffer list * @core_ctx: used to store core buffer list * * @lat_list_cnt: used to record each instance lat list count * @core_list_cnt: used to record each instance core list count * @flush_done: core flush done status * @empty_lat_buf: the last lat buf used to flush decode * @core_dec_done: core work queue decode done event * @status: current context decode status for core hardware * @ctx: mtk vcodec context information */ struct vdec_msg_queue { … }; /** * vdec_msg_queue_init - init lat buffer information. * @msg_queue: used to store the lat buffer information * @ctx: v4l2 ctx * @core_decode: core decode callback for each codec * @private_size: the private data size used to share with core * * Return: returns 0 if init successfully, or fail. */ int vdec_msg_queue_init(struct vdec_msg_queue *msg_queue, struct mtk_vcodec_dec_ctx *ctx, core_decode_cb_t core_decode, int private_size); /** * vdec_msg_queue_init_ctx - used to init msg queue context information. * @ctx: message queue context * @hardware_index: hardware index */ void vdec_msg_queue_init_ctx(struct vdec_msg_queue_ctx *ctx, int hardware_index); /** * vdec_msg_queue_qbuf - enqueue lat buffer to queue list. * @ctx: message queue context * @buf: current lat buffer * * Return: returns 0 if qbuf successfully, or fail. */ int vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *ctx, struct vdec_lat_buf *buf); /** * vdec_msg_queue_dqbuf - dequeue lat buffer from queue list. * @ctx: message queue context * * Return: returns not null if dq successfully, or fail. */ struct vdec_lat_buf *vdec_msg_queue_dqbuf(struct vdec_msg_queue_ctx *ctx); /** * vdec_msg_queue_update_ube_rptr - used to update the ube read point. * @msg_queue: used to store the lat buffer information * @ube_rptr: current ube read point */ void vdec_msg_queue_update_ube_rptr(struct vdec_msg_queue *msg_queue, uint64_t ube_rptr); /** * vdec_msg_queue_update_ube_wptr - used to update the ube write point. * @msg_queue: used to store the lat buffer information * @ube_wptr: current ube write point */ void vdec_msg_queue_update_ube_wptr(struct vdec_msg_queue *msg_queue, uint64_t ube_wptr); /** * vdec_msg_queue_wait_lat_buf_full - used to check whether all lat buffer * in lat list. * @msg_queue: used to store the lat buffer information * * Return: returns true if successfully, or fail. */ bool vdec_msg_queue_wait_lat_buf_full(struct vdec_msg_queue *msg_queue); /** * vdec_msg_queue_deinit - deinit lat buffer information. * @msg_queue: used to store the lat buffer information * @ctx: v4l2 ctx */ void vdec_msg_queue_deinit(struct vdec_msg_queue *msg_queue, struct mtk_vcodec_dec_ctx *ctx); #endif
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