2 * uterm - Linux User-Space Terminal
4 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@googlemail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files
8 * (the "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
21 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * DRM shared functions
35 #include <xf86drmMode.h>
37 #include "uterm_drm_shared_internal.h"
38 #include "uterm_video.h"
39 #include "uterm_video_internal.h"
41 #define LOG_SUBSYSTEM "drm_shared"
43 int uterm_drm_mode_init(struct uterm_mode *mode)
45 struct uterm_drm_mode *m;
47 m = malloc(sizeof(*m));
50 memset(m, 0, sizeof(*m));
56 void uterm_drm_mode_destroy(struct uterm_mode *mode)
61 const char *uterm_drm_mode_get_name(const struct uterm_mode *mode)
63 struct uterm_drm_mode *m = mode->data;
68 unsigned int uterm_drm_mode_get_width(const struct uterm_mode *mode)
70 struct uterm_drm_mode *m = mode->data;
72 return m->info.hdisplay;
75 unsigned int uterm_drm_mode_get_height(const struct uterm_mode *mode)
77 struct uterm_drm_mode *m = mode->data;
79 return m->info.vdisplay;
82 void uterm_drm_mode_set(struct uterm_mode *mode, drmModeModeInfo *info)
84 struct uterm_drm_mode *m = mode->data;
89 const struct mode_ops uterm_drm_mode_ops = {
90 .init = uterm_drm_mode_init,
91 .destroy = uterm_drm_mode_destroy,
92 .get_name = uterm_drm_mode_get_name,
93 .get_width = uterm_drm_mode_get_width,
94 .get_height = uterm_drm_mode_get_height,
97 int uterm_drm_set_dpms(int fd, uint32_t conn_id, int state)
100 drmModeConnector *conn;
101 drmModePropertyRes *prop;
105 set = DRM_MODE_DPMS_ON;
107 case UTERM_DPMS_STANDBY:
108 set = DRM_MODE_DPMS_STANDBY;
110 case UTERM_DPMS_SUSPEND:
111 set = DRM_MODE_DPMS_SUSPEND;
114 set = DRM_MODE_DPMS_OFF;
120 conn = drmModeGetConnector(fd, conn_id);
122 log_err("cannot get display connector");
127 for (i = 0; i < conn->count_props; ++i) {
128 prop = drmModeGetProperty(fd, conn->props[i]);
130 log_error("cannot get DRM property (%d): %m", errno);
134 if (!strcmp(prop->name, "DPMS")) {
135 ret = drmModeConnectorSetProperty(fd, conn_id,
138 log_info("cannot set DPMS");
141 drmModeFreeProperty(prop);
144 drmModeFreeProperty(prop);
147 if (i == conn->count_props) {
148 log_warn("display does not support DPMS");
149 ret = UTERM_DPMS_UNKNOWN;
152 drmModeFreeConnector(conn);
156 int uterm_drm_get_dpms(int fd, drmModeConnector *conn)
159 drmModePropertyRes *prop;
161 for (i = 0; i < conn->count_props; ++i) {
162 prop = drmModeGetProperty(fd, conn->props[i]);
164 log_error("cannot get DRM property (%d): %m", errno);
168 if (!strcmp(prop->name, "DPMS")) {
169 switch (conn->prop_values[i]) {
170 case DRM_MODE_DPMS_ON:
173 case DRM_MODE_DPMS_STANDBY:
174 ret = UTERM_DPMS_STANDBY;
176 case DRM_MODE_DPMS_SUSPEND:
177 ret = UTERM_DPMS_SUSPEND;
179 case DRM_MODE_DPMS_OFF:
181 ret = UTERM_DPMS_OFF;
184 drmModeFreeProperty(prop);
187 drmModeFreeProperty(prop);
190 if (i == conn->count_props)
191 log_warn("display does not support DPMS");
192 return UTERM_DPMS_UNKNOWN;
195 int uterm_drm_display_init(struct uterm_display *disp, void *data)
197 struct uterm_drm_display *d;
199 d = malloc(sizeof(*d));
202 memset(d, 0, sizeof(*d));
209 void uterm_drm_display_destroy(struct uterm_display *disp)
214 int uterm_drm_display_activate(struct uterm_display *disp, int fd)
216 struct uterm_video *video = disp->video;
217 struct uterm_drm_display *ddrm = disp->data;
219 drmModeConnector *conn;
223 res = drmModeGetResources(fd);
225 log_err("cannot get resources for display %p", disp);
228 conn = drmModeGetConnector(fd, ddrm->conn_id);
230 log_err("cannot get connector for display %p", disp);
231 drmModeFreeResources(res);
236 for (i = 0; i < conn->count_encoders; ++i) {
237 enc = drmModeGetEncoder(fd, conn->encoders[i]);
240 crtc = uterm_drm_video_find_crtc(video, res, enc);
241 drmModeFreeEncoder(enc);
246 drmModeFreeConnector(conn);
247 drmModeFreeResources(res);
250 log_warn("cannot find crtc for new display");
254 ddrm->crtc_id = crtc;
255 if (ddrm->saved_crtc)
256 drmModeFreeCrtc(ddrm->saved_crtc);
257 ddrm->saved_crtc = drmModeGetCrtc(fd, ddrm->crtc_id);
262 void uterm_drm_display_deactivate(struct uterm_display *disp, int fd)
264 struct uterm_drm_display *ddrm = disp->data;
266 if (ddrm->saved_crtc) {
267 if (disp->video->flags & VIDEO_AWAKE) {
268 drmModeSetCrtc(fd, ddrm->saved_crtc->crtc_id,
269 ddrm->saved_crtc->buffer_id,
273 &ddrm->saved_crtc->mode);
275 drmModeFreeCrtc(ddrm->saved_crtc);
276 ddrm->saved_crtc = NULL;
282 int uterm_drm_display_bind(struct uterm_video *video,
283 struct uterm_display *disp, drmModeRes *res,
284 drmModeConnector *conn, int fd)
286 struct uterm_mode *mode;
288 struct uterm_drm_display *ddrm = disp->data;
290 for (i = 0; i < conn->count_modes; ++i) {
291 ret = mode_new(&mode, &uterm_drm_mode_ops);
294 uterm_drm_mode_set(mode, &conn->modes[i]);
295 mode->next = disp->modes;
298 /* TODO: more sophisticated default-mode selection */
299 if (!disp->default_mode)
300 disp->default_mode = mode;
304 log_warn("no valid mode for display found");
308 ddrm->conn_id = conn->connector_id;
309 disp->flags |= DISPLAY_AVAILABLE;
310 disp->next = video->displays;
311 video->displays = disp;
312 disp->dpms = uterm_drm_get_dpms(fd, conn);
314 log_info("display %p DPMS is %s", disp,
315 uterm_dpms_to_name(disp->dpms));
317 VIDEO_CB(video, disp, UTERM_NEW);
321 void uterm_drm_display_unbind(struct uterm_display *disp)
323 VIDEO_CB(disp->video, disp, UTERM_GONE);
324 uterm_display_deactivate(disp);
326 disp->flags &= ~DISPLAY_AVAILABLE;
329 int uterm_drm_video_find_crtc(struct uterm_video *video, drmModeRes *res,
333 struct uterm_display *iter;
334 struct uterm_drm_display *ddrm;
336 for (i = 0; i < res->count_crtcs; ++i) {
337 if (enc->possible_crtcs & (1 << i)) {
338 crtc = res->crtcs[i];
339 for (iter = video->displays; iter; iter = iter->next) {
341 if (ddrm->crtc_id == crtc)