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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/* exynos_drm_crtc.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 <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include "exynos_drm_crtc.h"
#include "exynos_drm_drv.h"
#include "exynos_drm_plane.h"
static void exynos_drm_crtc_enable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
if (exynos_crtc->ops->enable)
exynos_crtc->ops->enable(exynos_crtc);
drm_crtc_vblank_on(crtc);
}
static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
drm_crtc_vblank_off(crtc);
if (exynos_crtc->ops->disable)
exynos_crtc->ops->disable(exynos_crtc);
}
static bool
exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
if (exynos_crtc->ops->mode_fixup)
return exynos_crtc->ops->mode_fixup(exynos_crtc, mode,
adjusted_mode);
return true;
}
static void
exynos_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
if (exynos_crtc->ops->commit)
exynos_crtc->ops->commit(exynos_crtc);
}
static void exynos_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
struct drm_plane *plane;
exynos_crtc->event = crtc->state->event;
drm_atomic_crtc_for_each_plane(plane, crtc) {
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
if (exynos_crtc->ops->atomic_begin)
exynos_crtc->ops->atomic_begin(exynos_crtc,
exynos_plane);
}
}
static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
struct drm_plane *plane;
drm_atomic_crtc_for_each_plane(plane, crtc) {
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
if (exynos_crtc->ops->atomic_flush)
exynos_crtc->ops->atomic_flush(exynos_crtc,
exynos_plane);
}
}
static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
.enable = exynos_drm_crtc_enable,
.disable = exynos_drm_crtc_disable,
.mode_fixup = exynos_drm_crtc_mode_fixup,
.mode_set_nofb = exynos_drm_crtc_mode_set_nofb,
.atomic_begin = exynos_crtc_atomic_begin,
.atomic_flush = exynos_crtc_atomic_flush,
};
static void exynos_drm_crtc_destroy(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
struct exynos_drm_private *private = crtc->dev->dev_private;
private->crtc[exynos_crtc->pipe] = NULL;
drm_crtc_cleanup(crtc);
kfree(exynos_crtc);
}
static struct drm_crtc_funcs exynos_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.page_flip = drm_atomic_helper_page_flip,
.destroy = exynos_drm_crtc_destroy,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
};
struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
struct drm_plane *plane,
int pipe,
enum exynos_drm_output_type type,
const struct exynos_drm_crtc_ops *ops,
void *ctx)
{
struct exynos_drm_crtc *exynos_crtc;
struct exynos_drm_private *private = drm_dev->dev_private;
struct drm_crtc *crtc;
int ret;
exynos_crtc = kzalloc(sizeof(*exynos_crtc), GFP_KERNEL);
if (!exynos_crtc)
return ERR_PTR(-ENOMEM);
exynos_crtc->pipe = pipe;
exynos_crtc->type = type;
exynos_crtc->ops = ops;
exynos_crtc->ctx = ctx;
init_waitqueue_head(&exynos_crtc->wait_update);
crtc = &exynos_crtc->base;
private->crtc[pipe] = crtc;
ret = drm_crtc_init_with_planes(drm_dev, crtc, plane, NULL,
&exynos_crtc_funcs);
if (ret < 0)
goto err_crtc;
drm_crtc_helper_add(crtc, &exynos_crtc_helper_funcs);
return exynos_crtc;
err_crtc:
plane->funcs->destroy(plane);
kfree(exynos_crtc);
return ERR_PTR(ret);
}
int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
{
struct exynos_drm_private *private = dev->dev_private;
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);
if (exynos_crtc->ops->enable_vblank)
return exynos_crtc->ops->enable_vblank(exynos_crtc);
return 0;
}
void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
{
struct exynos_drm_private *private = dev->dev_private;
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);
if (exynos_crtc->ops->disable_vblank)
exynos_crtc->ops->disable_vblank(exynos_crtc);
}
void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc *exynos_crtc)
{
wait_event_timeout(exynos_crtc->wait_update,
(atomic_read(&exynos_crtc->pending_update) == 0),
msecs_to_jiffies(50));
}
void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
struct exynos_drm_plane *exynos_plane)
{
struct drm_crtc *crtc = &exynos_crtc->base;
unsigned long flags;
exynos_plane->pending_fb = NULL;
if (atomic_dec_and_test(&exynos_crtc->pending_update))
wake_up(&exynos_crtc->wait_update);
spin_lock_irqsave(&crtc->dev->event_lock, flags);
if (exynos_crtc->event)
drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
exynos_crtc->event = NULL;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
}
void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb)
{
struct exynos_drm_crtc *exynos_crtc;
struct drm_device *dev = fb->dev;
struct drm_crtc *crtc;
/*
* make sure that overlay data are updated to real hardware
* for all encoders.
*/
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
exynos_crtc = to_exynos_crtc(crtc);
/*
* wait for vblank interrupt
* - this makes sure that overlay data are updated to
* real hardware.
*/
if (exynos_crtc->ops->wait_for_vblank)
exynos_crtc->ops->wait_for_vblank(exynos_crtc);
}
}
int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
enum exynos_drm_output_type out_type)
{
struct drm_crtc *crtc;
list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
struct exynos_drm_crtc *exynos_crtc;
exynos_crtc = to_exynos_crtc(crtc);
if (exynos_crtc->type == out_type)
return exynos_crtc->pipe;
}
return -EPERM;
}
void exynos_drm_crtc_te_handler(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
if (exynos_crtc->ops->te_handler)
exynos_crtc->ops->te_handler(exynos_crtc);
}
|
