3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
16 #include <drm/drm_crtc_helper.h>
17 #include <drm/drm_atomic.h>
18 #include <drm/drm_atomic_helper.h>
20 #include "exynos_drm_crtc.h"
21 #include "exynos_drm_drv.h"
22 #include "exynos_drm_plane.h"
24 static void exynos_drm_crtc_enable(struct drm_crtc
*crtc
)
26 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
28 if (exynos_crtc
->ops
->enable
)
29 exynos_crtc
->ops
->enable(exynos_crtc
);
31 drm_crtc_vblank_on(crtc
);
34 static void exynos_drm_crtc_disable(struct drm_crtc
*crtc
)
36 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
38 drm_crtc_vblank_off(crtc
);
40 if (exynos_crtc
->ops
->disable
)
41 exynos_crtc
->ops
->disable(exynos_crtc
);
45 exynos_drm_crtc_mode_set_nofb(struct drm_crtc
*crtc
)
47 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
49 if (exynos_crtc
->ops
->commit
)
50 exynos_crtc
->ops
->commit(exynos_crtc
);
53 static int exynos_crtc_atomic_check(struct drm_crtc
*crtc
,
54 struct drm_crtc_state
*state
)
56 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
61 if (exynos_crtc
->ops
->atomic_check
)
62 return exynos_crtc
->ops
->atomic_check(exynos_crtc
, state
);
67 static void exynos_crtc_atomic_begin(struct drm_crtc
*crtc
,
68 struct drm_crtc_state
*old_crtc_state
)
70 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
72 exynos_crtc
->event
= crtc
->state
->event
;
74 if (exynos_crtc
->ops
->atomic_begin
)
75 exynos_crtc
->ops
->atomic_begin(exynos_crtc
);
78 static void exynos_crtc_atomic_flush(struct drm_crtc
*crtc
,
79 struct drm_crtc_state
*old_crtc_state
)
81 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
83 if (exynos_crtc
->ops
->atomic_flush
)
84 exynos_crtc
->ops
->atomic_flush(exynos_crtc
);
87 static const struct drm_crtc_helper_funcs exynos_crtc_helper_funcs
= {
88 .enable
= exynos_drm_crtc_enable
,
89 .disable
= exynos_drm_crtc_disable
,
90 .mode_set_nofb
= exynos_drm_crtc_mode_set_nofb
,
91 .atomic_check
= exynos_crtc_atomic_check
,
92 .atomic_begin
= exynos_crtc_atomic_begin
,
93 .atomic_flush
= exynos_crtc_atomic_flush
,
96 static void exynos_drm_crtc_destroy(struct drm_crtc
*crtc
)
98 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
99 struct exynos_drm_private
*private = crtc
->dev
->dev_private
;
101 private->crtc
[exynos_crtc
->pipe
] = NULL
;
103 drm_crtc_cleanup(crtc
);
107 static const struct drm_crtc_funcs exynos_crtc_funcs
= {
108 .set_config
= drm_atomic_helper_set_config
,
109 .page_flip
= drm_atomic_helper_page_flip
,
110 .destroy
= exynos_drm_crtc_destroy
,
111 .reset
= drm_atomic_helper_crtc_reset
,
112 .atomic_duplicate_state
= drm_atomic_helper_crtc_duplicate_state
,
113 .atomic_destroy_state
= drm_atomic_helper_crtc_destroy_state
,
116 struct exynos_drm_crtc
*exynos_drm_crtc_create(struct drm_device
*drm_dev
,
117 struct drm_plane
*plane
,
119 enum exynos_drm_output_type type
,
120 const struct exynos_drm_crtc_ops
*ops
,
123 struct exynos_drm_crtc
*exynos_crtc
;
124 struct exynos_drm_private
*private = drm_dev
->dev_private
;
125 struct drm_crtc
*crtc
;
128 exynos_crtc
= kzalloc(sizeof(*exynos_crtc
), GFP_KERNEL
);
130 return ERR_PTR(-ENOMEM
);
132 exynos_crtc
->pipe
= pipe
;
133 exynos_crtc
->type
= type
;
134 exynos_crtc
->ops
= ops
;
135 exynos_crtc
->ctx
= ctx
;
137 init_waitqueue_head(&exynos_crtc
->wait_update
);
139 crtc
= &exynos_crtc
->base
;
141 private->crtc
[pipe
] = crtc
;
143 ret
= drm_crtc_init_with_planes(drm_dev
, crtc
, plane
, NULL
,
144 &exynos_crtc_funcs
, NULL
);
148 drm_crtc_helper_add(crtc
, &exynos_crtc_helper_funcs
);
153 plane
->funcs
->destroy(plane
);
158 int exynos_drm_crtc_enable_vblank(struct drm_device
*dev
, unsigned int pipe
)
160 struct exynos_drm_private
*private = dev
->dev_private
;
161 struct exynos_drm_crtc
*exynos_crtc
=
162 to_exynos_crtc(private->crtc
[pipe
]);
164 if (exynos_crtc
->ops
->enable_vblank
)
165 return exynos_crtc
->ops
->enable_vblank(exynos_crtc
);
170 void exynos_drm_crtc_disable_vblank(struct drm_device
*dev
, unsigned int pipe
)
172 struct exynos_drm_private
*private = dev
->dev_private
;
173 struct exynos_drm_crtc
*exynos_crtc
=
174 to_exynos_crtc(private->crtc
[pipe
]);
176 if (exynos_crtc
->ops
->disable_vblank
)
177 exynos_crtc
->ops
->disable_vblank(exynos_crtc
);
180 void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc
*exynos_crtc
)
182 wait_event_timeout(exynos_crtc
->wait_update
,
183 (atomic_read(&exynos_crtc
->pending_update
) == 0),
184 msecs_to_jiffies(50));
187 void exynos_drm_crtc_finish_update(struct exynos_drm_crtc
*exynos_crtc
,
188 struct exynos_drm_plane
*exynos_plane
)
190 struct drm_crtc
*crtc
= &exynos_crtc
->base
;
193 exynos_plane
->pending_fb
= NULL
;
195 if (atomic_dec_and_test(&exynos_crtc
->pending_update
))
196 wake_up(&exynos_crtc
->wait_update
);
198 spin_lock_irqsave(&crtc
->dev
->event_lock
, flags
);
199 if (exynos_crtc
->event
)
200 drm_crtc_send_vblank_event(crtc
, exynos_crtc
->event
);
202 exynos_crtc
->event
= NULL
;
203 spin_unlock_irqrestore(&crtc
->dev
->event_lock
, flags
);
206 int exynos_drm_crtc_get_pipe_from_type(struct drm_device
*drm_dev
,
207 enum exynos_drm_output_type out_type
)
209 struct drm_crtc
*crtc
;
211 list_for_each_entry(crtc
, &drm_dev
->mode_config
.crtc_list
, head
) {
212 struct exynos_drm_crtc
*exynos_crtc
;
214 exynos_crtc
= to_exynos_crtc(crtc
);
215 if (exynos_crtc
->type
== out_type
)
216 return exynos_crtc
->pipe
;
222 void exynos_drm_crtc_te_handler(struct drm_crtc
*crtc
)
224 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
226 if (exynos_crtc
->ops
->te_handler
)
227 exynos_crtc
->ops
->te_handler(exynos_crtc
);
230 void exynos_drm_crtc_cancel_page_flip(struct drm_crtc
*crtc
,
231 struct drm_file
*file
)
233 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
234 struct drm_pending_vblank_event
*e
;
237 spin_lock_irqsave(&crtc
->dev
->event_lock
, flags
);
238 e
= exynos_crtc
->event
;
239 if (e
&& e
->base
.file_priv
== file
) {
240 exynos_crtc
->event
= NULL
;
242 * event will be destroyed by core part
243 * so below line should be removed later with core changes
245 e
->base
.destroy(&e
->base
);
247 * event_space will be increased by core part
248 * so below line should be removed later with core changes.
250 file
->event_space
+= sizeof(e
->event
);
251 atomic_dec(&exynos_crtc
->pending_update
);
253 spin_unlock_irqrestore(&crtc
->dev
->event_lock
, flags
);