1 /* $NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2020 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: drm_writeback.c,v 1.1 2021/12/19 10:46:02 riastradh Exp $");
31
32 #include <drm/drm_writeback.h>
33
34 struct drm_writeback_connector *
drm_connector_to_writeback(struct drm_connector * connector)35 drm_connector_to_writeback(struct drm_connector *connector)
36 {
37
38 return container_of(connector, struct drm_writeback_connector, base);
39 }
40
41 struct dma_fence *
drm_writeback_get_out_fence(struct drm_writeback_connector * wbconn)42 drm_writeback_get_out_fence(struct drm_writeback_connector *wbconn)
43 {
44 panic("writeback connectors not implemented");
45 return NULL;
46 }
47
48 int
drm_writeback_prepare_job(struct drm_writeback_job * wbj)49 drm_writeback_prepare_job(struct drm_writeback_job *wbj)
50 {
51 panic("writeback connectors not implemented");
52 return -ENXIO;
53 }
54
55 void
drm_writeback_cleanup_job(struct drm_writeback_job * job)56 drm_writeback_cleanup_job(struct drm_writeback_job *job)
57 {
58 panic("writeback connectors not implemented");
59 }
60
61 int
drm_writeback_set_fb(struct drm_connector_state * state,struct drm_framebuffer * fb)62 drm_writeback_set_fb(struct drm_connector_state *state,
63 struct drm_framebuffer *fb)
64 {
65 panic("writeback connectors not implemented");
66 return -ENXIO;
67 }
68