1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Authors: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include "drmP.h"
#include "exynos_drm.h"
#include "exynos_drm_crtc.h"
#include "exynos_drm_drv.h"
#include "exynos_drm_encoder.h"
struct exynos_plane {
struct drm_plane base;
struct exynos_drm_overlay overlay;
bool enabled;
};
static const uint32_t formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_NV12,
DRM_FORMAT_NV12M,
DRM_FORMAT_NV12MT,
};
static int
exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct exynos_plane *exynos_plane =
container_of(plane, struct exynos_plane, base);
struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
struct exynos_drm_crtc_pos pos;
int ret;
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
memset(&pos, 0, sizeof(struct exynos_drm_crtc_pos));
pos.crtc_x = crtc_x;
pos.crtc_y = crtc_y;
pos.crtc_w = crtc_w;
pos.crtc_h = crtc_h;
/* considering 16.16 fixed point of source values */
pos.fb_x = src_x >> 16;
pos.fb_y = src_y >> 16;
pos.src_w = src_w >> 16;
pos.src_h = src_h >> 16;
ret = exynos_drm_overlay_update(overlay, fb, &crtc->mode, &pos);
if (ret < 0)
return ret;
exynos_drm_fn_encoder(crtc, overlay,
exynos_drm_encoder_crtc_mode_set);
exynos_drm_fn_encoder(crtc, &overlay->zpos,
exynos_drm_encoder_crtc_plane_commit);
exynos_plane->enabled = true;
return 0;
}
static int exynos_disable_plane(struct drm_plane *plane)
{
struct exynos_plane *exynos_plane =
container_of(plane, struct exynos_plane, base);
struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
if (!exynos_plane->enabled)
return 0;
exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
exynos_drm_encoder_crtc_disable);
exynos_plane->enabled = false;
exynos_plane->overlay.zpos = DEFAULT_ZPOS;
return 0;
}
static void exynos_plane_destroy(struct drm_plane *plane)
{
struct exynos_plane *exynos_plane =
container_of(plane, struct exynos_plane, base);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
exynos_disable_plane(plane);
drm_plane_cleanup(plane);
kfree(exynos_plane);
}
static struct drm_plane_funcs exynos_plane_funcs = {
.update_plane = exynos_update_plane,
.disable_plane = exynos_disable_plane,
.destroy = exynos_plane_destroy,
};
int exynos_plane_init(struct drm_device *dev, unsigned int nr)
{
struct exynos_plane *exynos_plane;
uint32_t possible_crtcs;
exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
if (!exynos_plane)
return -ENOMEM;
/* all CRTCs are available */
possible_crtcs = (1 << MAX_CRTC) - 1;
exynos_plane->overlay.zpos = DEFAULT_ZPOS;
return drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
&exynos_plane_funcs, formats, ARRAY_SIZE(formats),
false);
}
int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_exynos_plane_set_zpos *zpos_req = data;
struct drm_mode_object *obj;
struct drm_plane *plane;
struct exynos_plane *exynos_plane;
int ret = 0;
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (zpos_req->zpos < 0 || zpos_req->zpos >= MAX_PLANE) {
if (zpos_req->zpos != DEFAULT_ZPOS) {
DRM_ERROR("zpos not within limits\n");
return -EINVAL;
}
}
mutex_lock(&dev->mode_config.mutex);
obj = drm_mode_object_find(dev, zpos_req->plane_id,
DRM_MODE_OBJECT_PLANE);
if (!obj) {
DRM_DEBUG_KMS("Unknown plane ID %d\n",
zpos_req->plane_id);
ret = -EINVAL;
goto out;
}
plane = obj_to_plane(obj);
exynos_plane = container_of(plane, struct exynos_plane, base);
exynos_plane->overlay.zpos = zpos_req->zpos;
out:
mutex_unlock(&dev->mode_config.mutex);
return ret;
}
|
