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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* Freescale DCU drm device driver
*/
#include <linux/regmap.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
#include "fsl_dcu_drm_drv.h"
#include "fsl_dcu_drm_plane.h"
static int fsl_dcu_drm_plane_index(struct drm_plane *plane)
{
struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
unsigned int total_layer = fsl_dev->soc->total_layer;
unsigned int index;
index = drm_plane_index(plane);
if (index < total_layer)
return total_layer - index - 1;
dev_err(fsl_dev->dev, "No more layer left\n");
return -EINVAL;
}
static int fsl_dcu_drm_plane_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_framebuffer *fb = new_plane_state->fb;
if (!new_plane_state->fb || !new_plane_state->crtc)
return 0;
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_XRGB1555:
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_YUV422:
return 0;
default:
return -EINVAL;
}
}
static void fsl_dcu_drm_plane_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
unsigned int value;
int index;
index = fsl_dcu_drm_plane_index(plane);
if (index < 0)
return;
regmap_read(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4), &value);
value &= ~DCU_LAYER_EN;
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4), value);
}
static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct fsl_dcu_drm_device *fsl_dev = plane->dev->dev_private;
struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
plane);
struct drm_framebuffer *fb = plane->state->fb;
struct drm_gem_cma_object *gem;
unsigned int alpha = DCU_LAYER_AB_NONE, bpp;
int index;
if (!fb)
return;
index = fsl_dcu_drm_plane_index(plane);
if (index < 0)
return;
gem = drm_fb_cma_get_gem_obj(fb, 0);
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
bpp = FSL_DCU_RGB565;
break;
case DRM_FORMAT_RGB888:
bpp = FSL_DCU_RGB888;
break;
case DRM_FORMAT_ARGB8888:
alpha = DCU_LAYER_AB_WHOLE_FRAME;
fallthrough;
case DRM_FORMAT_XRGB8888:
bpp = FSL_DCU_ARGB8888;
break;
case DRM_FORMAT_ARGB4444:
alpha = DCU_LAYER_AB_WHOLE_FRAME;
fallthrough;
case DRM_FORMAT_XRGB4444:
bpp = FSL_DCU_ARGB4444;
break;
case DRM_FORMAT_ARGB1555:
alpha = DCU_LAYER_AB_WHOLE_FRAME;
fallthrough;
case DRM_FORMAT_XRGB1555:
bpp = FSL_DCU_ARGB1555;
break;
case DRM_FORMAT_YUV422:
bpp = FSL_DCU_YUV422;
break;
default:
return;
}
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 1),
DCU_LAYER_HEIGHT(new_state->crtc_h) |
DCU_LAYER_WIDTH(new_state->crtc_w));
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 2),
DCU_LAYER_POSY(new_state->crtc_y) |
DCU_LAYER_POSX(new_state->crtc_x));
regmap_write(fsl_dev->regmap,
DCU_CTRLDESCLN(index, 3), gem->paddr);
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 4),
DCU_LAYER_EN |
DCU_LAYER_TRANS(0xff) |
DCU_LAYER_BPP(bpp) |
alpha);
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 5),
DCU_LAYER_CKMAX_R(0xFF) |
DCU_LAYER_CKMAX_G(0xFF) |
DCU_LAYER_CKMAX_B(0xFF));
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 6),
DCU_LAYER_CKMIN_R(0) |
DCU_LAYER_CKMIN_G(0) |
DCU_LAYER_CKMIN_B(0));
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 7), 0);
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 8),
DCU_LAYER_FG_FCOLOR(0));
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 9),
DCU_LAYER_BG_BCOLOR(0));
if (!strcmp(fsl_dev->soc->name, "ls1021a")) {
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(index, 10),
DCU_LAYER_POST_SKIP(0) |
DCU_LAYER_PRE_SKIP(0));
}
return;
}
static const struct drm_plane_helper_funcs fsl_dcu_drm_plane_helper_funcs = {
.atomic_check = fsl_dcu_drm_plane_atomic_check,
.atomic_disable = fsl_dcu_drm_plane_atomic_disable,
.atomic_update = fsl_dcu_drm_plane_atomic_update,
};
static void fsl_dcu_drm_plane_destroy(struct drm_plane *plane)
{
drm_plane_cleanup(plane);
kfree(plane);
}
static const struct drm_plane_funcs fsl_dcu_drm_plane_funcs = {
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.destroy = fsl_dcu_drm_plane_destroy,
.disable_plane = drm_atomic_helper_disable_plane,
.reset = drm_atomic_helper_plane_reset,
.update_plane = drm_atomic_helper_update_plane,
};
static const u32 fsl_dcu_drm_plane_formats[] = {
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB4444,
DRM_FORMAT_ARGB4444,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_ARGB1555,
DRM_FORMAT_YUV422,
};
void fsl_dcu_drm_init_planes(struct drm_device *dev)
{
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
int i, j;
for (i = 0; i < fsl_dev->soc->total_layer; i++) {
for (j = 1; j <= fsl_dev->soc->layer_regs; j++)
regmap_write(fsl_dev->regmap, DCU_CTRLDESCLN(i, j), 0);
}
}
struct drm_plane *fsl_dcu_drm_primary_create_plane(struct drm_device *dev)
{
struct drm_plane *primary;
int ret;
primary = kzalloc(sizeof(*primary), GFP_KERNEL);
if (!primary) {
DRM_DEBUG_KMS("Failed to allocate primary plane\n");
return NULL;
}
/* possible_crtc's will be filled in later by crtc_init */
ret = drm_universal_plane_init(dev, primary, 0,
&fsl_dcu_drm_plane_funcs,
fsl_dcu_drm_plane_formats,
ARRAY_SIZE(fsl_dcu_drm_plane_formats),
NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
if (ret) {
kfree(primary);
primary = NULL;
}
drm_plane_helper_add(primary, &fsl_dcu_drm_plane_helper_funcs);
return primary;
}
|
