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
|
/* exynos_drm_encoder.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Authors:
* Inki Dae <inki.dae@samsung.com>
* Joonyoung Shim <jy0922.shim@samsung.com>
* Seung-Woo Kim <sw0312.kim@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 <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_encoder.h"
#define to_exynos_encoder(x) container_of(x, struct exynos_drm_encoder,\
drm_encoder)
/*
* exynos specific encoder structure.
*
* @drm_encoder: encoder object.
* @display: the display structure that maps to this encoder
*/
struct exynos_drm_encoder {
struct drm_encoder drm_encoder;
struct exynos_drm_display *display;
};
static bool
exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
struct drm_connector *connector;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (connector->encoder != encoder)
continue;
if (display->ops->mode_fixup)
display->ops->mode_fixup(display, connector, mode,
adjusted_mode);
}
return true;
}
static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
if (display->ops->mode_set)
display->ops->mode_set(display, adjusted_mode);
}
static void exynos_drm_encoder_enable(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
if (display->ops->dpms)
display->ops->dpms(display, DRM_MODE_DPMS_ON);
if (display->ops->commit)
display->ops->commit(display);
}
static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
if (display->ops->dpms)
display->ops->dpms(display, DRM_MODE_DPMS_OFF);
}
static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = {
.mode_fixup = exynos_drm_encoder_mode_fixup,
.mode_set = exynos_drm_encoder_mode_set,
.enable = exynos_drm_encoder_enable,
.disable = exynos_drm_encoder_disable,
};
static void exynos_drm_encoder_destroy(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
drm_encoder_cleanup(encoder);
kfree(exynos_encoder);
}
static struct drm_encoder_funcs exynos_encoder_funcs = {
.destroy = exynos_drm_encoder_destroy,
};
static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
{
struct drm_encoder *clone;
struct drm_device *dev = encoder->dev;
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct exynos_drm_display *display = exynos_encoder->display;
unsigned int clone_mask = 0;
int cnt = 0;
list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
switch (display->type) {
case EXYNOS_DISPLAY_TYPE_LCD:
case EXYNOS_DISPLAY_TYPE_HDMI:
case EXYNOS_DISPLAY_TYPE_VIDI:
clone_mask |= (1 << (cnt++));
break;
default:
continue;
}
}
return clone_mask;
}
void exynos_drm_encoder_setup(struct drm_device *dev)
{
struct drm_encoder *encoder;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
encoder->possible_clones = exynos_drm_encoder_clones(encoder);
}
struct drm_encoder *
exynos_drm_encoder_create(struct drm_device *dev,
struct exynos_drm_display *display,
unsigned long possible_crtcs)
{
struct drm_encoder *encoder;
struct exynos_drm_encoder *exynos_encoder;
if (!possible_crtcs)
return NULL;
exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL);
if (!exynos_encoder)
return NULL;
exynos_encoder->display = display;
encoder = &exynos_encoder->drm_encoder;
encoder->possible_crtcs = possible_crtcs;
DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
drm_encoder_init(dev, encoder, &exynos_encoder_funcs,
DRM_MODE_ENCODER_TMDS);
drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs);
DRM_DEBUG_KMS("encoder has been created\n");
return encoder;
}
struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder)
{
return to_exynos_encoder(encoder)->display;
}
|
