1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
2 | /* |
3 | * R-Car Display Unit Planes and CRTCs Group |
4 | * |
5 | * Copyright (C) 2013-2014 Renesas Electronics Corporation |
6 | * |
7 | * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
8 | */ |
9 | |
10 | #ifndef __RCAR_DU_GROUP_H__ |
11 | #define __RCAR_DU_GROUP_H__ |
12 | |
13 | #include <linux/mutex.h> |
14 | |
15 | #include "rcar_du_plane.h" |
16 | |
17 | struct rcar_du_device; |
18 | |
19 | /* |
20 | * struct rcar_du_group - CRTCs and planes group |
21 | * @dev: the DU device |
22 | * @mmio_offset: registers offset in the device memory map |
23 | * @index: group index |
24 | * @channels_mask: bitmask of populated DU channels in this group |
25 | * @cmms_mask: bitmask of available CMMs in this group |
26 | * @num_crtcs: number of CRTCs in this group (1 or 2) |
27 | * @use_count: number of users of the group (rcar_du_group_(get|put)) |
28 | * @used_crtcs: number of CRTCs currently in use |
29 | * @lock: protects the dptsr_planes field and the DPTSR register |
30 | * @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1 |
31 | * @num_planes: number of planes in the group |
32 | * @planes: planes handled by the group |
33 | * @need_restart: the group needs to be restarted due to a configuration change |
34 | */ |
35 | struct rcar_du_group { |
36 | struct rcar_du_device *dev; |
37 | unsigned int mmio_offset; |
38 | unsigned int index; |
39 | |
40 | unsigned int channels_mask; |
41 | unsigned int cmms_mask; |
42 | unsigned int num_crtcs; |
43 | unsigned int use_count; |
44 | unsigned int used_crtcs; |
45 | |
46 | struct mutex lock; |
47 | unsigned int dptsr_planes; |
48 | |
49 | unsigned int num_planes; |
50 | struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES]; |
51 | bool need_restart; |
52 | }; |
53 | |
54 | u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); |
55 | void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); |
56 | |
57 | int rcar_du_group_get(struct rcar_du_group *rgrp); |
58 | void rcar_du_group_put(struct rcar_du_group *rgrp); |
59 | void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); |
60 | void rcar_du_group_restart(struct rcar_du_group *rgrp); |
61 | int rcar_du_group_set_routing(struct rcar_du_group *rgrp); |
62 | |
63 | int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu); |
64 | |
65 | #endif /* __RCAR_DU_GROUP_H__ */ |
66 | |