Add some basic use of libevdev

1 files changed, 23 insertions, 9 deletions

diff --git a/rcm-server-evdev.c b/rcm-server-evdev.c
index 74cae10..afd89f7 100644
--- a/rcm-server-evdev.c
+++ b/rcm-server-evdev.c
@@ -9,6 +9,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <libevdev/libevdev.h>
 
 #include "utils.h"
 #include "shared.h"
@@ -150,6 +151,7 @@ evdev_read(sd_event_source *s, int fd, uint32_t revents, void *userdata)
 	static uint32_t scancode;
 	static bool scancode_recv = false;
 	unsigned i;
+	int r;
 
 	if (fd != device->evdev_fd)
 		fprintf(stderr, "evdev fd mismatch: %i != %i\n", device->evdev_fd, fd);
@@ -166,7 +168,16 @@ evdev_read(sd_event_source *s, int fd, uint32_t revents, void *userdata)
 		return 0;
 	}
 
-	while (read(fd, &ev, sizeof(ev)) == sizeof(ev)) {
+	do {
+		r = libevdev_next_event(device->evdev_dev, LIBEVDEV_READ_FLAG_NORMAL, &ev);
+		if (r != LIBEVDEV_READ_STATUS_SUCCESS)
+			continue;
+
+		printf("Event: %s %s %d\n",
+		       libevdev_event_type_get_name(ev.type),
+		       libevdev_event_code_get_name(ev.type, ev.code),
+		       ev.value);
+
 		switch (ev.type) {
 		case EV_KEY:
 			if (keycode)
@@ -242,13 +253,14 @@ evdev_read(sd_event_source *s, int fd, uint32_t revents, void *userdata)
 		default:
 			break;
 		}
-	}
+
+	} while (r == LIBEVDEV_READ_STATUS_SUCCESS || r == LIBEVDEV_READ_STATUS_SYNC);
 
 	return 0;
 }
 
 int
-evdev_setup(struct manager *mgr, struct device *device, const char *path)
+evdev_setup(struct device *device, const char *path)
 {
 	int r;
 	struct keymap *keymap;
@@ -262,13 +274,15 @@ evdev_setup(struct manager *mgr, struct device *device, const char *path)
 	}
 
 	device->evdev_fd = open(path, O_RDONLY | O_NONBLOCK);
-	if (device->evdev_fd < 0) {
-		printf("Failed to open evdev device %s: %s\n",
-		       path, strerror(errno));
-		return -errno;
+	r = libevdev_new_from_fd(device->evdev_fd, &device->evdev_dev);
+	if (r < 0) {
+		printf("Failed to open evdev device %s: %s\n", path, strerror(-r));
+		close(device->evdev_fd);
+		return r;
 	}
 
-	printf("Performing evdev setup for device %s\n", device->path);
+	printf("Performing evdev setup for device %s (%s)\n",
+	       device->path, libevdev_get_name(device->evdev_dev));
 	r = evdev_clear_keymap(device);
 	if (r < 0)
 		return r;
@@ -276,7 +290,7 @@ evdev_setup(struct manager *mgr, struct device *device, const char *path)
 	list_for_each_entry(keymap, &device->keymaps, list)
 		r = evdev_set_keymap(device, keymap);
 
-	if (sd_event_add_io(mgr->event, &device->evdev_ev,
+	if (sd_event_add_io(device->mgr->event, &device->evdev_ev,
 			    device->evdev_fd, EPOLLIN, evdev_read, device) < 0) {
 		printf("Failed to add event source for evdev device %s: %s\n",
 		       path, strerror(errno));