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>
18 #include "exynos_drm_crtc.h"
19 #include "exynos_drm_drv.h"
20 #include "exynos_drm_encoder.h"
21 #include "exynos_drm_plane.h"
23 static void exynos_drm_crtc_dpms(struct drm_crtc
*crtc
, int mode
)
25 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
27 DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc
->base
.id
, mode
);
29 if (exynos_crtc
->dpms
== mode
) {
30 DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
34 if (mode
> DRM_MODE_DPMS_ON
) {
35 /* wait for the completion of page flip. */
36 if (!wait_event_timeout(exynos_crtc
->pending_flip_queue
,
37 (exynos_crtc
->event
== NULL
), HZ
/20))
38 exynos_crtc
->event
= NULL
;
39 drm_crtc_vblank_off(crtc
);
42 if (exynos_crtc
->ops
->dpms
)
43 exynos_crtc
->ops
->dpms(exynos_crtc
, mode
);
45 exynos_crtc
->dpms
= mode
;
47 if (mode
== DRM_MODE_DPMS_ON
)
48 drm_crtc_vblank_on(crtc
);
51 static void exynos_drm_crtc_prepare(struct drm_crtc
*crtc
)
53 /* drm framework doesn't check NULL. */
56 static void exynos_drm_crtc_commit(struct drm_crtc
*crtc
)
58 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
59 struct exynos_drm_plane
*exynos_plane
= to_exynos_plane(crtc
->primary
);
61 exynos_drm_crtc_dpms(crtc
, DRM_MODE_DPMS_ON
);
63 if (exynos_crtc
->ops
->win_commit
)
64 exynos_crtc
->ops
->win_commit(exynos_crtc
, exynos_plane
->zpos
);
66 if (exynos_crtc
->ops
->commit
)
67 exynos_crtc
->ops
->commit(exynos_crtc
);
71 exynos_drm_crtc_mode_fixup(struct drm_crtc
*crtc
,
72 const struct drm_display_mode
*mode
,
73 struct drm_display_mode
*adjusted_mode
)
75 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
77 if (exynos_crtc
->ops
->mode_fixup
)
78 return exynos_crtc
->ops
->mode_fixup(exynos_crtc
, mode
,
85 exynos_drm_crtc_mode_set(struct drm_crtc
*crtc
, struct drm_display_mode
*mode
,
86 struct drm_display_mode
*adjusted_mode
, int x
, int y
,
87 struct drm_framebuffer
*old_fb
)
89 struct drm_framebuffer
*fb
= crtc
->primary
->fb
;
95 * copy the mode data adjusted by mode_fixup() into crtc->mode
96 * so that hardware can be seet to proper mode.
98 memcpy(&crtc
->mode
, adjusted_mode
, sizeof(*adjusted_mode
));
100 ret
= exynos_check_plane(crtc
->primary
, fb
);
104 crtc_w
= fb
->width
- x
;
105 crtc_h
= fb
->height
- y
;
106 exynos_plane_mode_set(crtc
->primary
, crtc
, fb
, 0, 0,
107 crtc_w
, crtc_h
, x
, y
, crtc_w
, crtc_h
);
112 static int exynos_drm_crtc_mode_set_base(struct drm_crtc
*crtc
, int x
, int y
,
113 struct drm_framebuffer
*old_fb
)
115 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
116 struct drm_framebuffer
*fb
= crtc
->primary
->fb
;
120 /* when framebuffer changing is requested, crtc's dpms should be on */
121 if (exynos_crtc
->dpms
> DRM_MODE_DPMS_ON
) {
122 DRM_ERROR("failed framebuffer changing request.\n");
126 crtc_w
= fb
->width
- x
;
127 crtc_h
= fb
->height
- y
;
129 return exynos_update_plane(crtc
->primary
, crtc
, fb
, 0, 0,
130 crtc_w
, crtc_h
, x
, y
, crtc_w
, crtc_h
);
133 static void exynos_drm_crtc_disable(struct drm_crtc
*crtc
)
135 struct drm_plane
*plane
;
138 exynos_drm_crtc_dpms(crtc
, DRM_MODE_DPMS_OFF
);
140 drm_for_each_legacy_plane(plane
, &crtc
->dev
->mode_config
.plane_list
) {
141 if (plane
->crtc
!= crtc
)
144 ret
= plane
->funcs
->disable_plane(plane
);
146 DRM_ERROR("Failed to disable plane %d\n", ret
);
150 static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs
= {
151 .dpms
= exynos_drm_crtc_dpms
,
152 .prepare
= exynos_drm_crtc_prepare
,
153 .commit
= exynos_drm_crtc_commit
,
154 .mode_fixup
= exynos_drm_crtc_mode_fixup
,
155 .mode_set
= exynos_drm_crtc_mode_set
,
156 .mode_set_base
= exynos_drm_crtc_mode_set_base
,
157 .disable
= exynos_drm_crtc_disable
,
160 static int exynos_drm_crtc_page_flip(struct drm_crtc
*crtc
,
161 struct drm_framebuffer
*fb
,
162 struct drm_pending_vblank_event
*event
,
163 uint32_t page_flip_flags
)
165 struct drm_device
*dev
= crtc
->dev
;
166 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
167 struct drm_framebuffer
*old_fb
= crtc
->primary
->fb
;
168 unsigned int crtc_w
, crtc_h
;
171 /* when the page flip is requested, crtc's dpms should be on */
172 if (exynos_crtc
->dpms
> DRM_MODE_DPMS_ON
) {
173 DRM_ERROR("failed page flip request.\n");
180 spin_lock_irq(&dev
->event_lock
);
181 if (exynos_crtc
->event
) {
186 ret
= drm_vblank_get(dev
, exynos_crtc
->pipe
);
188 DRM_DEBUG("failed to acquire vblank counter\n");
192 exynos_crtc
->event
= event
;
193 spin_unlock_irq(&dev
->event_lock
);
196 * the pipe from user always is 0 so we can set pipe number
197 * of current owner to event.
199 event
->pipe
= exynos_crtc
->pipe
;
201 crtc
->primary
->fb
= fb
;
202 crtc_w
= fb
->width
- crtc
->x
;
203 crtc_h
= fb
->height
- crtc
->y
;
204 ret
= exynos_update_plane(crtc
->primary
, crtc
, fb
, 0, 0,
205 crtc_w
, crtc_h
, crtc
->x
, crtc
->y
,
208 crtc
->primary
->fb
= old_fb
;
209 spin_lock_irq(&dev
->event_lock
);
210 exynos_crtc
->event
= NULL
;
211 drm_vblank_put(dev
, exynos_crtc
->pipe
);
212 spin_unlock_irq(&dev
->event_lock
);
219 spin_unlock_irq(&dev
->event_lock
);
223 static void exynos_drm_crtc_destroy(struct drm_crtc
*crtc
)
225 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
226 struct exynos_drm_private
*private = crtc
->dev
->dev_private
;
228 private->crtc
[exynos_crtc
->pipe
] = NULL
;
230 drm_crtc_cleanup(crtc
);
234 static struct drm_crtc_funcs exynos_crtc_funcs
= {
235 .set_config
= drm_crtc_helper_set_config
,
236 .page_flip
= exynos_drm_crtc_page_flip
,
237 .destroy
= exynos_drm_crtc_destroy
,
240 struct exynos_drm_crtc
*exynos_drm_crtc_create(struct drm_device
*drm_dev
,
241 struct drm_plane
*plane
,
243 enum exynos_drm_output_type type
,
244 const struct exynos_drm_crtc_ops
*ops
,
247 struct exynos_drm_crtc
*exynos_crtc
;
248 struct exynos_drm_private
*private = drm_dev
->dev_private
;
249 struct drm_crtc
*crtc
;
252 exynos_crtc
= kzalloc(sizeof(*exynos_crtc
), GFP_KERNEL
);
254 return ERR_PTR(-ENOMEM
);
256 init_waitqueue_head(&exynos_crtc
->pending_flip_queue
);
258 exynos_crtc
->dpms
= DRM_MODE_DPMS_OFF
;
259 exynos_crtc
->pipe
= pipe
;
260 exynos_crtc
->type
= type
;
261 exynos_crtc
->ops
= ops
;
262 exynos_crtc
->ctx
= ctx
;
264 crtc
= &exynos_crtc
->base
;
266 private->crtc
[pipe
] = crtc
;
268 ret
= drm_crtc_init_with_planes(drm_dev
, crtc
, plane
, NULL
,
273 drm_crtc_helper_add(crtc
, &exynos_crtc_helper_funcs
);
278 plane
->funcs
->destroy(plane
);
283 int exynos_drm_crtc_enable_vblank(struct drm_device
*dev
, int pipe
)
285 struct exynos_drm_private
*private = dev
->dev_private
;
286 struct exynos_drm_crtc
*exynos_crtc
=
287 to_exynos_crtc(private->crtc
[pipe
]);
289 if (exynos_crtc
->dpms
!= DRM_MODE_DPMS_ON
)
292 if (exynos_crtc
->ops
->enable_vblank
)
293 exynos_crtc
->ops
->enable_vblank(exynos_crtc
);
298 void exynos_drm_crtc_disable_vblank(struct drm_device
*dev
, int pipe
)
300 struct exynos_drm_private
*private = dev
->dev_private
;
301 struct exynos_drm_crtc
*exynos_crtc
=
302 to_exynos_crtc(private->crtc
[pipe
]);
304 if (exynos_crtc
->dpms
!= DRM_MODE_DPMS_ON
)
307 if (exynos_crtc
->ops
->disable_vblank
)
308 exynos_crtc
->ops
->disable_vblank(exynos_crtc
);
311 void exynos_drm_crtc_finish_pageflip(struct drm_device
*dev
, int pipe
)
313 struct exynos_drm_private
*dev_priv
= dev
->dev_private
;
314 struct drm_crtc
*drm_crtc
= dev_priv
->crtc
[pipe
];
315 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(drm_crtc
);
318 spin_lock_irqsave(&dev
->event_lock
, flags
);
319 if (exynos_crtc
->event
) {
321 drm_send_vblank_event(dev
, -1, exynos_crtc
->event
);
322 drm_vblank_put(dev
, pipe
);
323 wake_up(&exynos_crtc
->pending_flip_queue
);
327 exynos_crtc
->event
= NULL
;
328 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
331 void exynos_drm_crtc_complete_scanout(struct drm_framebuffer
*fb
)
333 struct exynos_drm_crtc
*exynos_crtc
;
334 struct drm_device
*dev
= fb
->dev
;
335 struct drm_crtc
*crtc
;
338 * make sure that overlay data are updated to real hardware
341 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
342 exynos_crtc
= to_exynos_crtc(crtc
);
345 * wait for vblank interrupt
346 * - this makes sure that overlay data are updated to
349 if (exynos_crtc
->ops
->wait_for_vblank
)
350 exynos_crtc
->ops
->wait_for_vblank(exynos_crtc
);
354 int exynos_drm_crtc_get_pipe_from_type(struct drm_device
*drm_dev
,
355 unsigned int out_type
)
357 struct drm_crtc
*crtc
;
359 list_for_each_entry(crtc
, &drm_dev
->mode_config
.crtc_list
, head
) {
360 struct exynos_drm_crtc
*exynos_crtc
;
362 exynos_crtc
= to_exynos_crtc(crtc
);
363 if (exynos_crtc
->type
== out_type
)
364 return exynos_crtc
->pipe
;
370 void exynos_drm_crtc_te_handler(struct drm_crtc
*crtc
)
372 struct exynos_drm_crtc
*exynos_crtc
= to_exynos_crtc(crtc
);
374 if (exynos_crtc
->ops
->te_handler
)
375 exynos_crtc
->ops
->te_handler(exynos_crtc
);