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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * vsp1_dl.h -- R-Car VSP1 Display List4 *5 * Copyright (C) 2015 Renesas Corporation6 *7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)8 */9#ifndef __VSP1_DL_H__10#define __VSP1_DL_H__11 12#include <linux/types.h>13 14struct vsp1_device;15struct vsp1_dl_body;16struct vsp1_dl_body_pool;17struct vsp1_dl_list;18struct vsp1_dl_manager;19 20/* Keep these flags in sync with VSP1_DU_STATUS_* in include/media/vsp1.h. */21#define VSP1_DL_FRAME_END_COMPLETED BIT(0)22#define VSP1_DL_FRAME_END_WRITEBACK BIT(1)23#define VSP1_DL_FRAME_END_INTERNAL BIT(2)24 25/**26 * struct vsp1_dl_ext_cmd - Extended Display command27 * @pool: pool to which this command belongs28 * @free: entry in the pool of free commands list29 * @opcode: command type opcode30 * @flags: flags used by the command31 * @cmds: array of command bodies for this extended cmd32 * @num_cmds: quantity of commands in @cmds array33 * @cmd_dma: DMA address of the command body34 * @data: memory allocation for command-specific data35 * @data_dma: DMA address for command-specific data36 */37struct vsp1_dl_ext_cmd {38 struct vsp1_dl_cmd_pool *pool;39 struct list_head free;40 41 u8 opcode;42 u32 flags;43 44 struct vsp1_pre_ext_dl_body *cmds;45 unsigned int num_cmds;46 dma_addr_t cmd_dma;47 48 void *data;49 dma_addr_t data_dma;50};51 52void vsp1_dlm_setup(struct vsp1_device *vsp1);53 54struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,55 unsigned int index,56 unsigned int prealloc);57void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm);58void vsp1_dlm_reset(struct vsp1_dl_manager *dlm);59unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);60struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm);61 62struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm);63void vsp1_dl_list_put(struct vsp1_dl_list *dl);64struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl);65struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl);66void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags);67 68struct vsp1_dl_body_pool *69vsp1_dl_body_pool_create(struct vsp1_device *vsp1, unsigned int num_bodies,70 unsigned int num_entries, size_t extra_size);71void vsp1_dl_body_pool_destroy(struct vsp1_dl_body_pool *pool);72struct vsp1_dl_body *vsp1_dl_body_get(struct vsp1_dl_body_pool *pool);73void vsp1_dl_body_put(struct vsp1_dl_body *dlb);74 75void vsp1_dl_body_write(struct vsp1_dl_body *dlb, u32 reg, u32 data);76int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb);77int vsp1_dl_list_add_chain(struct vsp1_dl_list *head, struct vsp1_dl_list *dl);78 79#endif /* __VSP1_DL_H__ */80