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Udev event device matching

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This commit is contained in:
Scott Anderson 2017-06-03 15:47:33 +12:00
parent 40b85d992a
commit de44994dfc
4 changed files with 22 additions and 18 deletions
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21
backend/drm/backend.c
View file

@ -5,6 +5,7 @@
#include <errno.h>
#include <assert.h>
#include <wayland-server.h>
#include <xf86drm.h>
#include <sys/stat.h>
#include <wlr/session.h>
#include <wlr/types.h>
@ -30,7 +31,6 @@ static void wlr_drm_backend_destroy(struct wlr_backend_state *state) {
}
wlr_drm_renderer_free(&state->renderer);
wlr_session_close_file(state->session, state->fd);
wlr_session_finish(state->session);
wl_event_source_remove(state->drm_event);
free(state);
}
@ -73,14 +73,31 @@ static void device_resumed(struct wl_listener *listener, void *data) {
}
}
static void drm_invalidated(struct wl_listener *listener, void *state) {
static void drm_invalidated(struct wl_listener *listener, void *data) {
struct wlr_backend_state *drm = wl_container_of(listener, drm, drm_invalidated);
dev_t *dev = data;
if (drm->dev == *dev) {
char *name = drmGetDeviceNameFromFd2(drm->fd);
wlr_log(L_DEBUG, "%s invalidated", name);
free(name);
wlr_drm_scan_connectors(drm);
}
}
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
struct wlr_session *session, struct wlr_udev *udev, int gpu_fd) {
assert(display && session && gpu_fd > 0);
char *name = drmGetDeviceNameFromFd2(gpu_fd);
drmVersion *version = drmGetVersion(gpu_fd);
wlr_log(L_INFO, "Initalizing DRM backend for %s (%s)", name, version->name);
free(name);
drmFreeVersion(version);
struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
if (!state) {
wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));

1
backend/drm/drm.c
View file

@ -276,7 +276,6 @@ static void wlr_drm_output_enable(struct wlr_output_state *output, bool enable)
static void wlr_drm_output_destroy(struct wlr_output_state *output) {
wlr_drm_output_cleanup(output, true);
wlr_drm_renderer_free(output->renderer);
free(output);
}

15
backend/udev.c
View file

@ -73,7 +73,6 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) {
struct udev_list_entry *entry;
int fd = -1;
char *drm_path = NULL;
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(en)) {
bool is_boot_vga = false;
@ -117,9 +116,6 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) {
continue;
}
free(drm_path);
drm_path = strdup(path);
udev_device_unref(dev);
// We've found the primary GPU
@ -130,7 +126,6 @@ int wlr_udev_find_gpu(struct wlr_udev *udev, struct wlr_session *session) {
udev_enumerate_unref(en);
udev->drm_path = drm_path;
return fd;
}
@ -143,21 +138,16 @@ static int udev_event(int fd, uint32_t mask, void *data) {
}
const char *action = udev_device_get_action(dev);
const char *path = udev_device_get_devnode(dev);
wlr_log(L_DEBUG, "udev event for %s (%s)",
udev_device_get_sysname(dev), action);
if (!path || strcmp(path, udev->drm_path) != 0) {
goto out;
}
if (!action || strcmp(action, "change") != 0) {
goto out;
}
// TODO: Specify the GPU that's being invalidated
wl_signal_emit(&udev->invalidate_drm, udev);
dev_t devnum = udev_device_get_devnum(dev);
wl_signal_emit(&udev->invalidate_drm, &devnum);
out:
udev_device_unref(dev);
@ -216,5 +206,4 @@ void wlr_udev_destroy(struct wlr_udev *udev) {
udev_monitor_unref(udev->mon);
udev_unref(udev->udev);
free(udev->drm_path);
}

1
include/backend/udev.h
View file

@ -9,7 +9,6 @@
struct wlr_udev {
struct udev *udev;
struct udev_monitor *mon;
char *drm_path;
struct wl_event_source *event;
struct wl_signal invalidate_drm;
};