80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* vsp1_dl.h -- R-Car VSP1 Display List
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*
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* Copyright (C) 2015 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*/
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#ifndef __VSP1_DL_H__
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#define __VSP1_DL_H__
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#include <linux/types.h>
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struct vsp1_device;
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struct vsp1_dl_body;
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struct vsp1_dl_body_pool;
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struct vsp1_dl_list;
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struct vsp1_dl_manager;
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/* Keep these flags in sync with VSP1_DU_STATUS_* in include/media/vsp1.h. */
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#define VSP1_DL_FRAME_END_COMPLETED BIT(0)
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#define VSP1_DL_FRAME_END_WRITEBACK BIT(1)
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#define VSP1_DL_FRAME_END_INTERNAL BIT(2)
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/**
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* struct vsp1_dl_ext_cmd - Extended Display command
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* @pool: pool to which this command belongs
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* @free: entry in the pool of free commands list
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* @opcode: command type opcode
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* @flags: flags used by the command
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* @cmds: array of command bodies for this extended cmd
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* @num_cmds: quantity of commands in @cmds array
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* @cmd_dma: DMA address of the command body
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* @data: memory allocation for command-specific data
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* @data_dma: DMA address for command-specific data
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*/
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struct vsp1_dl_ext_cmd {
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struct vsp1_dl_cmd_pool *pool;
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struct list_head free;
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u8 opcode;
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u32 flags;
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struct vsp1_pre_ext_dl_body *cmds;
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unsigned int num_cmds;
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dma_addr_t cmd_dma;
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void *data;
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dma_addr_t data_dma;
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};
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void vsp1_dlm_setup(struct vsp1_device *vsp1);
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struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
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unsigned int index,
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unsigned int prealloc);
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void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm);
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void vsp1_dlm_reset(struct vsp1_dl_manager *dlm);
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unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);
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struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm);
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struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm);
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void vsp1_dl_list_put(struct vsp1_dl_list *dl);
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struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl);
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struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl);
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void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags);
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struct vsp1_dl_body_pool *
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vsp1_dl_body_pool_create(struct vsp1_device *vsp1, unsigned int num_bodies,
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unsigned int num_entries, size_t extra_size);
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void vsp1_dl_body_pool_destroy(struct vsp1_dl_body_pool *pool);
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struct vsp1_dl_body *vsp1_dl_body_get(struct vsp1_dl_body_pool *pool);
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void vsp1_dl_body_put(struct vsp1_dl_body *dlb);
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void vsp1_dl_body_write(struct vsp1_dl_body *dlb, u32 reg, u32 data);
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int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb);
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int vsp1_dl_list_add_chain(struct vsp1_dl_list *head, struct vsp1_dl_list *dl);
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#endif /* __VSP1_DL_H__ */
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