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