Merge branch 'master' into wayland-backend

backend/CMakeLists.txt

@@ -19,6 +19,7 @@ add_library(wlr-backend
     libinput/pointer.c
     libinput/touch.c
     libinput/tablet_tool.c
+    libinput/tablet_pad.c
 
     multi/backend.c
     backend.c

backend/drm/drm.c

@@ -296,6 +296,10 @@ static void wlr_drm_cursor_bo_update(struct wlr_output_state *output,
 			wlr_log(L_ERROR, "Failed to create cursor bo");
 			return;
 		}
+		if (!get_fb_for_bo(state->fd, output->cursor_bo[i])) {
+			wlr_log(L_ERROR, "Failed to create cursor fb");
+			return;
+		}
 	}
 }
 

backend/libinput/events.c

@@ -91,7 +91,10 @@ static void handle_device_added(struct wlr_backend_state *state,
 		wl_signal_emit(&state->backend->events.input_add, wlr_device);
 	}
 	if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TABLET_PAD)) {
-		// TODO
+		struct wlr_input_device *wlr_device = allocate_device(state,
+				device, devices, WLR_INPUT_DEVICE_TABLET_PAD);
+		wlr_device->tablet_pad = wlr_libinput_tablet_pad_create(device);
+		wl_signal_emit(&state->backend->events.input_add, wlr_device);
 	}
 	if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_GESTURE)) {
 		// TODO
@@ -169,6 +172,15 @@ void wlr_libinput_event(struct wlr_backend_state *state,
 	case LIBINPUT_EVENT_TABLET_TOOL_BUTTON:
 		handle_tablet_tool_button(event, device);
 		break;
+	case LIBINPUT_EVENT_TABLET_PAD_BUTTON:
+		handle_tablet_pad_button(event, device);
+		break;
+	case LIBINPUT_EVENT_TABLET_PAD_RING:
+		handle_tablet_pad_ring(event, device);
+		break;
+	case LIBINPUT_EVENT_TABLET_PAD_STRIP:
+		handle_tablet_pad_strip(event, device);
+		break;
 	default:
 		wlr_log(L_DEBUG, "Unknown libinput event %d", event_type);
 		break;

backend/libinput/keyboard.c

@@ -8,11 +8,32 @@
 #include "common/log.h"
 #include "types.h"
 
+struct wlr_keyboard_state {
+	struct libinput_device *device;
+};
+
+static void wlr_libinput_keyboard_set_leds(struct wlr_keyboard_state *kbstate, uint32_t leds) {
+	libinput_device_led_update(kbstate->device, leds);
+}
+
+static void wlr_libinput_keyboard_destroy(struct wlr_keyboard_state *kbstate) {
+	libinput_device_unref(kbstate->device);
+	free(kbstate);
+}
+
+struct wlr_keyboard_impl impl = {
+	.destroy = wlr_libinput_keyboard_destroy,
+	.led_update = wlr_libinput_keyboard_set_leds
+};
+
 struct wlr_keyboard *wlr_libinput_keyboard_create(
 		struct libinput_device *device) {
 	assert(device);
+	struct wlr_keyboard_state *kbstate = calloc(1, sizeof(struct wlr_keyboard_state));
+	kbstate->device = device;
+	libinput_device_ref(device);
 	libinput_device_led_update(device, 0);
-	return wlr_keyboard_create(NULL, NULL);
+	return wlr_keyboard_create(&impl, kbstate);
 }
 
 void handle_keyboard_key(struct libinput_event *event,

backend/libinput/tablet_pad.c

@@ -0,0 +1,95 @@
+#include <stdlib.h>
+#include <assert.h>
+#include <libinput.h>
+#include <wlr/session.h>
+#include <wlr/types.h>
+#include <wlr/common/list.h>
+#include "backend/libinput.h"
+#include "common/log.h"
+#include "types.h"
+
+struct wlr_tablet_pad *wlr_libinput_tablet_pad_create(
+		struct libinput_device *device) {
+	assert(device);
+	return wlr_tablet_pad_create(NULL, NULL);
+}
+
+void handle_tablet_pad_button(struct libinput_event *event,
+		struct libinput_device *device) {
+	struct wlr_input_device *dev =
+		get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
+	if (!dev) {
+		wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
+		return;
+	}
+	struct libinput_event_tablet_pad *pevent =
+		libinput_event_get_tablet_pad_event(event);
+	struct wlr_tablet_pad_button *wlr_event =
+		calloc(1, sizeof(struct wlr_tablet_pad_button));
+	wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
+	wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
+	wlr_event->button = libinput_event_tablet_pad_get_button_number(pevent);
+	switch (libinput_event_tablet_pad_get_button_state(pevent)) {
+	case LIBINPUT_BUTTON_STATE_PRESSED:
+		wlr_event->state = WLR_BUTTON_PRESSED;
+		break;
+	case LIBINPUT_BUTTON_STATE_RELEASED:
+		wlr_event->state = WLR_BUTTON_RELEASED;
+		break;
+	}
+	wl_signal_emit(&dev->tablet_pad->events.button, wlr_event);
+}
+
+void handle_tablet_pad_ring(struct libinput_event *event,
+		struct libinput_device *device) {
+	struct wlr_input_device *dev =
+		get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
+	if (!dev) {
+		wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
+		return;
+	}
+	struct libinput_event_tablet_pad *pevent =
+		libinput_event_get_tablet_pad_event(event);
+	struct wlr_tablet_pad_ring *wlr_event =
+		calloc(1, sizeof(struct wlr_tablet_pad_ring));
+	wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
+	wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
+	wlr_event->ring = libinput_event_tablet_pad_get_ring_number(pevent);
+	wlr_event->position = libinput_event_tablet_pad_get_ring_position(pevent);
+	switch (libinput_event_tablet_pad_get_ring_source(pevent)) {
+	case LIBINPUT_TABLET_PAD_RING_SOURCE_UNKNOWN:
+		wlr_event->source = WLR_TABLET_PAD_RING_SOURCE_UNKNOWN;
+		break;
+	case LIBINPUT_TABLET_PAD_RING_SOURCE_FINGER:
+		wlr_event->source = WLR_TABLET_PAD_RING_SOURCE_FINGER;
+		break;
+	}
+	wl_signal_emit(&dev->tablet_pad->events.ring, wlr_event);
+}
+
+void handle_tablet_pad_strip(struct libinput_event *event,
+		struct libinput_device *device) {
+	struct wlr_input_device *dev =
+		get_appropriate_device(WLR_INPUT_DEVICE_TABLET_PAD, device);
+	if (!dev) {
+		wlr_log(L_DEBUG, "Got a tablet pad event for a device with no tablet pad?");
+		return;
+	}
+	struct libinput_event_tablet_pad *pevent =
+		libinput_event_get_tablet_pad_event(event);
+	struct wlr_tablet_pad_strip *wlr_event =
+		calloc(1, sizeof(struct wlr_tablet_pad_strip));
+	wlr_event->time_sec = libinput_event_tablet_pad_get_time(pevent);
+	wlr_event->time_usec = libinput_event_tablet_pad_get_time_usec(pevent);
+	wlr_event->strip = libinput_event_tablet_pad_get_strip_number(pevent);
+	wlr_event->position = libinput_event_tablet_pad_get_strip_position(pevent);
+	switch (libinput_event_tablet_pad_get_strip_source(pevent)) {
+	case LIBINPUT_TABLET_PAD_STRIP_SOURCE_UNKNOWN:
+		wlr_event->source = WLR_TABLET_PAD_STRIP_SOURCE_UNKNOWN;
+		break;
+	case LIBINPUT_TABLET_PAD_STRIP_SOURCE_FINGER:
+		wlr_event->source = WLR_TABLET_PAD_STRIP_SOURCE_FINGER;
+		break;
+	}
+	wl_signal_emit(&dev->tablet_pad->events.strip, wlr_event);
+}

common/log.c

@@ -58,3 +58,20 @@ void _wlr_log(log_importance_t verbosity, const char *fmt, ...) {
 	log_callback(verbosity, fmt, args);
 	va_end(args);
 }
+
+// strips the path prefix from filepath
+// will try to strip WLR_SRC_DIR as well as a relative src dir
+// e.g. '/src/build/wlroots/backend/wayland/backend.c' and
+// '../backend/wayland/backend.c' will both be stripped to
+// 'backend/wayland/backend.c'
+const char *_strip_path(const char *filepath) {
+	static int srclen = strlen(WLR_SRC_DIR) + 1;
+	if(*filepath == '.') {
+		while(*filepath == '.' || *filepath == '/') {
+			++filepath;
+		}
+	} else {
+		filepath += srclen;
+	}
+	return filepath;
+}

example/pointer.c

@@ -94,8 +94,9 @@ static void handle_pointer_axis(struct pointer_state *pstate,
 
 static void handle_output_add(struct output_state *ostate) {
 	struct wlr_output *wlr_output = ostate->output;
+	int width = 16, height = 16;
 	if (!wlr_output_set_cursor(wlr_output, cat_tex.pixel_data,
-			cat_tex.width * 4, cat_tex.width, cat_tex.height)) {
+			width * 4, width, height)) {
 		fprintf(stderr, "Failed to set cursor\n");
 		return;
 	}

example/shared.c

@@ -12,6 +12,16 @@
 #include <wlr/types.h>
 #include "shared.h"
 
+static void keyboard_led_update(struct keyboard_state *kbstate) {
+	uint32_t leds = 0;
+	for (uint32_t i = 0; i < WLR_LED_LAST; ++i) {
+		if (xkb_state_led_index_is_active(kbstate->xkb_state, kbstate->leds[i])) {
+			leds |= (1 << i);
+		}
+	}
+	wlr_keyboard_led_update(kbstate->device->keyboard, leds);
+}
+
 static void keyboard_key_notify(struct wl_listener *listener, void *data) {
 	struct wlr_keyboard_key *event = data;
 	struct keyboard_state *kbstate = wl_container_of(listener, kbstate, key);
@@ -33,6 +43,7 @@ static void keyboard_key_notify(struct wl_listener *listener, void *data) {
 	}
 	xkb_state_update_key(kbstate->xkb_state, keycode,
 		event->state == WLR_KEY_PRESSED ?  XKB_KEY_DOWN : XKB_KEY_UP);
+	keyboard_led_update(kbstate);
 }
 
 static void keyboard_add(struct wlr_input_device *device, struct compositor_state *state) {
@@ -68,6 +79,14 @@ static void keyboard_add(struct wlr_input_device *device, struct compositor_stat
 		fprintf(stderr, "Failed to create XKB state\n");
 		exit(1);
 	}
+	const char *led_names[3] = {
+		XKB_LED_NAME_NUM,
+		XKB_LED_NAME_CAPS,
+		XKB_LED_NAME_SCROLL
+	};
+	for (uint32_t i = 0; i < 3; ++i) {
+		kbstate->leds[i] = xkb_map_led_get_index(kbstate->keymap, led_names[i]);
+	}
 }
 
 static void pointer_motion_notify(struct wl_listener *listener, void *data) {
@@ -211,6 +230,25 @@ static void tablet_tool_add(struct wlr_input_device *device,
 	wl_list_insert(&state->tablet_tools, &tstate->link);
 }
 
+static void tablet_pad_button_notify(struct wl_listener *listener, void *data) {
+	struct wlr_tablet_pad_button *event = data;
+	struct tablet_pad_state *pstate = wl_container_of(listener, pstate, button);
+	if (pstate->compositor->pad_button_cb) {
+		pstate->compositor->pad_button_cb(pstate, event->button, event->state);
+	}
+}
+
+static void tablet_pad_add(struct wlr_input_device *device,
+		struct compositor_state *state) {
+	struct tablet_pad_state *pstate = calloc(sizeof(struct tablet_pad_state), 1);
+	pstate->device = device;
+	pstate->compositor = state;
+	wl_list_init(&pstate->button.link);
+	pstate->button.notify = tablet_pad_button_notify;
+	wl_signal_add(&device->tablet_pad->events.button, &pstate->button);
+	wl_list_insert(&state->tablet_pads, &pstate->link);
+}
+
 static void input_add_notify(struct wl_listener *listener, void *data) {
 	struct wlr_input_device *device = data;
 	struct compositor_state *state = wl_container_of(listener, state, input_add);
@@ -226,6 +264,10 @@ static void input_add_notify(struct wl_listener *listener, void *data) {
 		break;
 	case WLR_INPUT_DEVICE_TABLET_TOOL:
 		tablet_tool_add(device, state);
+		break;
+	case WLR_INPUT_DEVICE_TABLET_PAD:
+		tablet_pad_add(device, state);
+		break;
 	default:
 		break;
 	}
@@ -391,6 +433,7 @@ void compositor_init(struct compositor_state *state) {
 	wl_list_init(&state->pointers);
 	wl_list_init(&state->touch);
 	wl_list_init(&state->tablet_tools);
+	wl_list_init(&state->tablet_pads);
 	wl_list_init(&state->input_add.link);
 	state->input_add.notify = input_add_notify;
 	wl_list_init(&state->input_remove.link);

example/shared.h

@@ -25,6 +25,7 @@ struct keyboard_state {
 	struct wl_list link;
 	struct xkb_keymap *keymap;
 	struct xkb_state *xkb_state;
+	xkb_led_index_t leds[WLR_LED_LAST];
 	void *data;
 };
 
@@ -61,6 +62,14 @@ struct tablet_tool_state {
 	void *data;
 };
 
+struct tablet_pad_state {
+	struct compositor_state *compositor;
+	struct wlr_input_device *device;
+	struct wl_listener button;
+	struct wl_list link;
+	void *data;
+};
+
 struct compositor_state {
 	void (*output_add_cb)(struct output_state *s);
 	void (*keyboard_add_cb)(struct keyboard_state *s);
@@ -91,6 +100,8 @@ struct compositor_state {
 			enum wlr_tablet_tool_tip_state state);
 	void (*tool_button_cb)(struct tablet_tool_state *s,
 			uint32_t button, enum wlr_button_state state);
+	void (*pad_button_cb)(struct tablet_pad_state *s,
+			uint32_t button, enum wlr_button_state state);
 
 	struct wl_display *display;
 	struct wl_event_loop *event_loop;
@@ -101,6 +112,7 @@ struct compositor_state {
 	struct wl_list pointers;
 	struct wl_list touch;
 	struct wl_list tablet_tools;
+	struct wl_list tablet_pads;
 	struct wl_listener input_add;
 	struct wl_listener input_remove;
 

example/tablet.c

@@ -21,13 +21,14 @@
 
 struct sample_state {
 	struct wlr_renderer *renderer;
-	bool proximity, tap;
+	bool proximity, tap, button;
 	double distance;
 	double pressure;
 	double x_mm, y_mm;
 	double width_mm, height_mm;
 	struct wl_list link;
 	float tool_color[4];
+	float pad_color[4];
 };
 
 static void handle_output_frame(struct output_state *output, struct timespec *ts) {
@@ -41,11 +42,10 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
 	wlr_renderer_begin(sample->renderer, wlr_output);
 
 	float matrix[16], view[16];
-	float pad_color[4] = { 0.75, 0.75, 0.75, 1.0 };
 	float distance = 0.8f * (1 - sample->distance);
 	float tool_color[4] = { distance, distance, distance, 1 };
-	for (size_t i = 0; i < 4; ++i) {
+	for (size_t i = 0; sample->button && i < 4; ++i) {
-		tool_color[i] *= sample->tool_color[i];
+		tool_color[i] = sample->tool_color[i];
 	}
 	float scale = 4;
 
@@ -57,7 +57,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
 	wlr_matrix_scale(&view, pad_width, pad_height, 1);
 	wlr_matrix_mul(&matrix, &view, &view);
 	wlr_matrix_mul(&wlr_output->transform_matrix, &view, &matrix);
-	wlr_render_colored_quad(sample->renderer, &pad_color, &matrix);
+	wlr_render_colored_quad(sample->renderer, &sample->pad_color, &matrix);
 
 	if (sample->proximity) {
 		wlr_matrix_translate(&matrix,
@@ -110,12 +110,31 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
 		uint32_t button, enum wlr_button_state state) {
 	struct sample_state *sample = tstate->compositor->data;
 	if (state == WLR_BUTTON_RELEASED) {
-		float default_color[4] = { 1, 1, 1, 1 };
+		sample->button = false;
-		memcpy(sample->tool_color, default_color, 4);
 	} else {
+		sample->button = true;
 		for (size_t i = 0; i < 3; ++i) {
-			if (button % 3 != i) {
+			if (button % 3 == i) {
-				sample->tool_color[button % 3] = 0;
+				sample->tool_color[i] = 0;
+			} else {
+				sample->tool_color[i] = 1;
+			}
+		}
+	}
+}
+
+static void handle_pad_button(struct tablet_pad_state *pstate,
+		uint32_t button, enum wlr_button_state state) {
+	struct sample_state *sample = pstate->compositor->data;
+	float default_color[4] = { 0.75, 0.75, 0.75, 1.0 };
+	if (state == WLR_BUTTON_RELEASED) {
+		memcpy(sample->pad_color, default_color, sizeof(default_color));
+	} else {
+		for (size_t i = 0; i < 3; ++i) {
+			if (button % 3 == i) {
+				sample->pad_color[i] = 0;
+			} else {
+				sample->pad_color[i] = 1;
 			}
 		}
 	}
@@ -123,7 +142,8 @@ static void handle_tool_button(struct tablet_tool_state *tstate,
 
 int main(int argc, char *argv[]) {
 	struct sample_state state = {
-		.tool_color = { 1, 1, 1, 1 }
+		.tool_color = { 1, 1, 1, 1 },
+		.pad_color = { 0.75, 0.75, 0.75, 1.0 }
 	};
 	struct compositor_state compositor;
 
@@ -133,6 +153,7 @@ int main(int argc, char *argv[]) {
 	compositor.tool_axis_cb = handle_tool_axis;
 	compositor.tool_proximity_cb = handle_tool_proximity;
 	compositor.tool_button_cb = handle_tool_button;
+	compositor.pad_button_cb = handle_pad_button;
 
 	state.renderer = wlr_gles3_renderer_init();
 

include/backend/libinput.h

@@ -68,4 +68,13 @@ void handle_tablet_tool_tip(struct libinput_event *event,
 void handle_tablet_tool_button(struct libinput_event *event,
 		struct libinput_device *device);
 
+struct wlr_tablet_pad *wlr_libinput_tablet_pad_create(
+		struct libinput_device *device);
+void handle_tablet_pad_button(struct libinput_event *event,
+		struct libinput_device *device);
+void handle_tablet_pad_ring(struct libinput_event *event,
+		struct libinput_device *device);
+void handle_tablet_pad_strip(struct libinput_event *event,
+		struct libinput_device *device);
+
 #endif

include/common/log.h

@@ -13,12 +13,13 @@
 
 void _wlr_log(log_importance_t verbosity, const char *format, ...) ATTRIB_PRINTF(2, 3);
 void _wlr_vlog(log_importance_t verbosity, const char *format, va_list args) ATTRIB_PRINTF(2, 0);
+const char *_strip_path(const char *filepath);
 
 #define wlr_log(verb, fmt, ...) \
-	_wlr_log(verb, "[%s:%d] " fmt, __FILE__ + strlen(WLR_SRC_DIR) + 1, __LINE__, ##__VA_ARGS__)
+	_wlr_log(verb, "[%s:%d] " fmt, _strip_path(__FILE__), __LINE__, ##__VA_ARGS__)
 
 #define wlr_vlog(verb, fmt, args) \
-	_wlr_vlog(verb, "[%s:%d] " fmt, __FILE__ + strlen(WLR_SRC_DIR) + 1, __LINE__, args)
+	_wlr_vlog(verb, "[%s:%d] " fmt, _strip_path(__FILE__), __LINE__, args)
 
 #define wlr_log_errno(verb, fmt, ...) \
 	wlr_log(verb, fmt ": %s", ##__VA_ARGS__, strerror(errno))

include/types.h

@@ -23,6 +23,7 @@ void wlr_output_free(struct wlr_output *output);
 
 struct wlr_keyboard_impl {
 	void (*destroy)(struct wlr_keyboard_state *state);
+	void (*led_update)(struct wlr_keyboard_state *state, uint32_t leds);
 };
 
 struct wlr_keyboard *wlr_keyboard_create(struct wlr_keyboard_impl *impl,
@@ -53,6 +54,14 @@ struct wlr_tablet_tool *wlr_tablet_tool_create(struct wlr_tablet_tool_impl *impl
 		struct wlr_tablet_tool_state *state);
 void wlr_tablet_tool_destroy(struct wlr_tablet_tool *tool);
 
+struct wlr_tablet_pad_impl {
+	void (*destroy)(struct wlr_tablet_pad_state *pad);
+};
+
+struct wlr_tablet_pad *wlr_tablet_pad_create(struct wlr_tablet_pad_impl *impl,
+		struct wlr_tablet_pad_state *state);
+void wlr_tablet_pad_destroy(struct wlr_tablet_pad *pad);
+
 struct wlr_input_device_impl {
 	void (*destroy)(struct wlr_input_device_state *state);
 };

include/wlr/types.h

@@ -53,18 +53,28 @@ void wlr_output_destroy(struct wlr_output *output);
 void wlr_output_effective_resolution(struct wlr_output *output,
 		int *width, int *height);
 
+enum WLR_KEYBOARD_LED {
+	WLR_LED_NUM_LOCK = 1,
+	WLR_LED_CAPS_LOCK = 2,
+	WLR_LED_SCROLL_LOCK = 4,
+	WLR_LED_LAST
+};
+
 struct wlr_keyboard_state;
 struct wlr_keyboard_impl;
 
 struct wlr_keyboard {
 	struct wlr_keyboard_state *state;
 	struct wlr_keyboard_impl *impl;
+	uint32_t leds;
 
 	struct {
 		struct wl_signal key;
 	} events;
 };
 
+void wlr_keyboard_led_update(struct wlr_keyboard *keyboard, uint32_t leds);
+
 enum wlr_key_state {
 	WLR_KEY_RELEASED,
 	WLR_KEY_PRESSED,
@@ -254,8 +264,55 @@ struct wlr_tablet_tool_button {
 	enum wlr_button_state state;
 };
 
-// TODO: tablet pad
+// NOTE: the wlr tablet pad implementation does not currently support tablets
-// TODO: switch
+// with more than one mode. I don't own any such hardware so I cannot test it
+// and it is too complicated to make a meaningful implementation of blindly.
+struct wlr_tablet_pad_impl;
+struct wlr_tablet_pad_state;
+
+struct wlr_tablet_pad {
+	struct wlr_tablet_pad_impl *impl;
+	struct wlr_tablet_pad_state *state;
+
+	struct {
+		struct wl_signal button;
+		struct wl_signal ring;
+		struct wl_signal strip;
+	} events;
+};
+
+struct wlr_tablet_pad_button {
+	uint32_t time_sec;
+	uint64_t time_usec;
+	uint32_t button;
+	enum wlr_button_state state;
+};
+
+enum wlr_tablet_pad_ring_source {
+	WLR_TABLET_PAD_RING_SOURCE_UNKNOWN,
+	WLR_TABLET_PAD_RING_SOURCE_FINGER,
+};
+
+struct wlr_tablet_pad_ring {
+	uint32_t time_sec;
+	uint64_t time_usec;
+	enum wlr_tablet_pad_ring_source source;
+	uint32_t ring;
+	double position;
+};
+
+enum wlr_tablet_pad_strip_source {
+	WLR_TABLET_PAD_STRIP_SOURCE_UNKNOWN,
+	WLR_TABLET_PAD_STRIP_SOURCE_FINGER,
+};
+
+struct wlr_tablet_pad_strip {
+	uint32_t time_sec;
+	uint64_t time_usec;
+	enum wlr_tablet_pad_strip_source source;
+	uint32_t strip;
+	double position;
+};
 
 enum wlr_input_device_type {
 	WLR_INPUT_DEVICE_KEYBOARD,
@@ -284,6 +341,7 @@ struct wlr_input_device {
 		struct wlr_pointer *pointer;
 		struct wlr_touch *touch;
 		struct wlr_tablet_tool *tablet_tool;
+		struct wlr_tablet_pad *tablet_pad;
 	};
 };
 

types/CMakeLists.txt

@@ -10,6 +10,7 @@ add_library(wlr-types
     wlr_pointer.c
     wlr_touch.c
     wlr_tablet_tool.c
+    wlr_tablet_pad.c
 )
 
 target_link_libraries(wlr-types

types/wlr_keyboard.c

@@ -21,3 +21,9 @@ void wlr_keyboard_destroy(struct wlr_keyboard *kb) {
 	}
 	free(kb);
 }
+
+void wlr_keyboard_led_update(struct wlr_keyboard *kb, uint32_t leds) {
+	if (kb->impl) {
+		kb->impl->led_update(kb->state, leds);
+	}
+}

types/wlr_tablet_pad.c

@@ -0,0 +1,25 @@
+#include <stdlib.h>
+#include <string.h>
+#include <wayland-server.h>
+#include <wlr/types.h>
+#include <wlr/common/list.h>
+#include "types.h"
+
+struct wlr_tablet_pad *wlr_tablet_pad_create(struct wlr_tablet_pad_impl *impl,
+		struct wlr_tablet_pad_state *state) {
+	struct wlr_tablet_pad *pad = calloc(1, sizeof(struct wlr_tablet_pad));
+	pad->impl = impl;
+	pad->state = state;
+	wl_signal_init(&pad->events.button);
+	wl_signal_init(&pad->events.ring);
+	wl_signal_init(&pad->events.strip);
+	return pad;
+}
+
+void wlr_tablet_pad_destroy(struct wlr_tablet_pad *pad) {
+	if (!pad) return;
+	if (pad->impl) {
+		pad->impl->destroy(pad->state);
+	}
+	free(pad);
+}