1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * vsp1_dl.h -- R-Car VSP1 Display List 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2015 Renesas Corporation 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun #ifndef __VSP1_DL_H__ 10*4882a593Smuzhiyun #define __VSP1_DL_H__ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/types.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct vsp1_device; 15*4882a593Smuzhiyun struct vsp1_dl_body; 16*4882a593Smuzhiyun struct vsp1_dl_body_pool; 17*4882a593Smuzhiyun struct vsp1_dl_list; 18*4882a593Smuzhiyun struct vsp1_dl_manager; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* Keep these flags in sync with VSP1_DU_STATUS_* in include/media/vsp1.h. */ 21*4882a593Smuzhiyun #define VSP1_DL_FRAME_END_COMPLETED BIT(0) 22*4882a593Smuzhiyun #define VSP1_DL_FRAME_END_WRITEBACK BIT(1) 23*4882a593Smuzhiyun #define VSP1_DL_FRAME_END_INTERNAL BIT(2) 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /** 26*4882a593Smuzhiyun * struct vsp1_dl_ext_cmd - Extended Display command 27*4882a593Smuzhiyun * @pool: pool to which this command belongs 28*4882a593Smuzhiyun * @free: entry in the pool of free commands list 29*4882a593Smuzhiyun * @opcode: command type opcode 30*4882a593Smuzhiyun * @flags: flags used by the command 31*4882a593Smuzhiyun * @cmds: array of command bodies for this extended cmd 32*4882a593Smuzhiyun * @num_cmds: quantity of commands in @cmds array 33*4882a593Smuzhiyun * @cmd_dma: DMA address of the command body 34*4882a593Smuzhiyun * @data: memory allocation for command-specific data 35*4882a593Smuzhiyun * @data_dma: DMA address for command-specific data 36*4882a593Smuzhiyun */ 37*4882a593Smuzhiyun struct vsp1_dl_ext_cmd { 38*4882a593Smuzhiyun struct vsp1_dl_cmd_pool *pool; 39*4882a593Smuzhiyun struct list_head free; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun u8 opcode; 42*4882a593Smuzhiyun u32 flags; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct vsp1_pre_ext_dl_body *cmds; 45*4882a593Smuzhiyun unsigned int num_cmds; 46*4882a593Smuzhiyun dma_addr_t cmd_dma; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun void *data; 49*4882a593Smuzhiyun dma_addr_t data_dma; 50*4882a593Smuzhiyun }; 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun void vsp1_dlm_setup(struct vsp1_device *vsp1); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1, 55*4882a593Smuzhiyun unsigned int index, 56*4882a593Smuzhiyun unsigned int prealloc); 57*4882a593Smuzhiyun void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm); 58*4882a593Smuzhiyun void vsp1_dlm_reset(struct vsp1_dl_manager *dlm); 59*4882a593Smuzhiyun unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm); 60*4882a593Smuzhiyun struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm); 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm); 63*4882a593Smuzhiyun void vsp1_dl_list_put(struct vsp1_dl_list *dl); 64*4882a593Smuzhiyun struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl); 65*4882a593Smuzhiyun struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl); 66*4882a593Smuzhiyun void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags); 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun struct vsp1_dl_body_pool * 69*4882a593Smuzhiyun vsp1_dl_body_pool_create(struct vsp1_device *vsp1, unsigned int num_bodies, 70*4882a593Smuzhiyun unsigned int num_entries, size_t extra_size); 71*4882a593Smuzhiyun void vsp1_dl_body_pool_destroy(struct vsp1_dl_body_pool *pool); 72*4882a593Smuzhiyun struct vsp1_dl_body *vsp1_dl_body_get(struct vsp1_dl_body_pool *pool); 73*4882a593Smuzhiyun void vsp1_dl_body_put(struct vsp1_dl_body *dlb); 74*4882a593Smuzhiyun 75*4882a593Smuzhiyun void vsp1_dl_body_write(struct vsp1_dl_body *dlb, u32 reg, u32 data); 76*4882a593Smuzhiyun int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb); 77*4882a593Smuzhiyun int vsp1_dl_list_add_chain(struct vsp1_dl_list *head, struct vsp1_dl_list *dl); 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun #endif /* __VSP1_DL_H__ */ 80