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Added device matching

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This commit is contained in:
Scott Anderson 2017-05-14 13:07:34 +12:00
parent 7efdd3c9fc
commit f9d363fece
4 changed files with 39 additions and 8 deletions
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24
backend/drm/backend.c
View file

@ -4,6 +4,7 @@
#include <string.h>
#include <errno.h>
#include <wayland-server.h>
#include <sys/stat.h>
#include <wlr/session.h>
#include <wlr/common/list.h>
@ -38,23 +39,32 @@ static struct wlr_backend_impl backend_impl = {
};
static void device_paused(struct wl_listener *listener, void *data) {
struct wlr_backend_state *backend = wl_container_of(listener, backend, device_paused);
struct wlr_backend_state *drm = wl_container_of(listener, drm, device_paused);
struct device_arg *arg = data;
// TODO: Actually pause the renderer or something.
// We currently just expect it to fail its next pageflip.
(void)backend;
if (arg->dev == drm->dev) {
wlr_log(L_INFO, "DRM fd paused");
}
}
static void device_resumed(struct wl_listener *listener, void *data) {
struct wlr_backend_state *drm = wl_container_of(listener, drm, device_resumed);
int *new_fd = data;
struct device_arg *arg = data;
if (dup2(*new_fd, drm->fd) < 0) {
if (arg->dev != drm->dev) {
return;
}
if (dup2(arg->fd, drm->fd) < 0) {
wlr_log(L_ERROR, "dup2 failed: %s", strerror(errno));
return;
}
wlr_log(L_INFO, "DRM fd resumed");
for (size_t i = 0; i < drm->outputs->length; ++i) {
struct wlr_output_state *output = drm->outputs->items[i];
wlr_drm_output_start_renderer(output);
@ -94,6 +104,12 @@ struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
goto error_udev;
}
struct stat st;
if (fstat(state->fd, &st) < 0) {
wlr_log(L_ERROR, "Stat failed: %s", strerror(errno));
}
state->dev = st.st_rdev;
struct wl_event_loop *event_loop = wl_display_get_event_loop(display);
state->drm_event = wl_event_loop_add_fd(event_loop, state->fd,

1
include/backend/drm/backend.h
View file

@ -19,6 +19,7 @@
struct wlr_backend_state {
int fd;
dev_t dev;
struct wlr_backend *backend;
struct wl_event_source *drm_event;

7
include/wlr/session.h
View file

@ -2,9 +2,16 @@
#define WLR_SESSION_H
#include <wayland-server.h>
#include <sys/types.h>
struct session_interface;
// Passed to the listeners of device_paused/resumed
struct device_arg {
dev_t dev;
int fd; // Only for device_resumed
};
struct wlr_session {
const struct session_interface *iface;

15
session/logind.c
View file

@ -198,8 +198,12 @@ static int pause_device(sd_bus_message *msg, void *userdata, sd_bus_error *ret_e
goto error;
}
dev_t dev = makedev(major, minor);
wl_signal_emit(&session->base.device_paused, &dev);
struct device_arg arg = {
.dev = makedev(major, minor),
.fd = -1,
};
wl_signal_emit(&session->base.device_paused, &arg);
ret = sd_bus_call_method(session->bus, "org.freedesktop.login1",
session->path, "org.freedesktop.login1.Session", "PauseDeviceComplete",
@ -226,9 +230,12 @@ static int resume_device(sd_bus_message *msg, void *userdata, sd_bus_error *ret_
goto error;
}
// TODO: Use major/minor to make sure the right devices are getting signals
struct device_arg arg = {
.dev = makedev(major, minor),
.fd = fd,
};
wl_signal_emit(&session->base.device_resumed, &fd);
wl_signal_emit(&session->base.device_resumed, &arg);
error:
return 0;