1 /*
2 * Copyright © 2014 NVIDIA Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include <errno.h>
25 #include <string.h>
26
27 #include "libkms-test.h"
28
kms_screen_probe(struct kms_screen * screen)29 static void kms_screen_probe(struct kms_screen *screen)
30 {
31 struct kms_device *device = screen->device;
32 drmModeConnector *con;
33
34 con = drmModeGetConnector(device->fd, screen->id);
35 if (!con)
36 return;
37
38 screen->type = con->connector_type;
39
40 if (con->connection == DRM_MODE_CONNECTED)
41 screen->connected = true;
42 else
43 screen->connected = false;
44
45 if (con->modes)
46 memcpy(&screen->mode, &con->modes[0], sizeof(drmModeModeInfo));
47
48 screen->width = screen->mode.hdisplay;
49 screen->height = screen->mode.vdisplay;
50
51 drmModeFreeConnector(con);
52 }
53
kms_screen_create(struct kms_device * device,uint32_t id)54 struct kms_screen *kms_screen_create(struct kms_device *device, uint32_t id)
55 {
56 struct kms_screen *screen;
57
58 screen = calloc(1, sizeof(*screen));
59 if (!screen)
60 return NULL;
61
62 screen->device = device;
63 screen->id = id;
64
65 kms_screen_probe(screen);
66
67 return screen;
68 }
69
kms_screen_free(struct kms_screen * screen)70 void kms_screen_free(struct kms_screen *screen)
71 {
72 if (screen)
73 free(screen->name);
74
75 free(screen);
76 }
77
kms_screen_set(struct kms_screen * screen,struct kms_crtc * crtc,struct kms_framebuffer * fb)78 int kms_screen_set(struct kms_screen *screen, struct kms_crtc *crtc,
79 struct kms_framebuffer *fb)
80 {
81 struct kms_device *device = screen->device;
82 int err;
83
84 err = drmModeSetCrtc(device->fd, crtc->id, fb->id, 0, 0, &screen->id,
85 1, &screen->mode);
86 if (err < 0)
87 return -errno;
88
89 return 0;
90 }
91