evdev: Use helper for separating buttons from keys
[platform/upstream/libinput.git] / src / libinput.c
index 1e31be3..90b6a13 100644 (file)
@@ -33,6 +33,7 @@
 #include "libinput.h"
 #include "libinput-private.h"
 #include "evdev.h"
+#include "timer.h"
 
 struct libinput_source {
        libinput_source_dispatch_t dispatch;
@@ -54,18 +55,20 @@ struct libinput_event_keyboard {
        struct libinput_event base;
        uint32_t time;
        uint32_t key;
-       enum libinput_keyboard_key_state state;
+       uint32_t seat_key_count;
+       enum libinput_key_state state;
 };
 
 struct libinput_event_pointer {
        struct libinput_event base;
        uint32_t time;
-       li_fixed_t x;
-       li_fixed_t y;
+       double x;
+       double y;
        uint32_t button;
-       enum libinput_pointer_button_state state;
+       uint32_t seat_button_count;
+       enum libinput_button_state state;
        enum libinput_pointer_axis axis;
-       li_fixed_t value;
+       double value;
 };
 
 struct libinput_event_touch {
@@ -73,13 +76,13 @@ struct libinput_event_touch {
        uint32_t time;
        int32_t slot;
        int32_t seat_slot;
-       li_fixed_t x;
-       li_fixed_t y;
+       double x;
+       double y;
 };
 
 static void
-libinput_default_log_func(enum libinput_log_priority priority,
-                         void *data,
+libinput_default_log_func(struct libinput *libinput,
+                         enum libinput_log_priority priority,
                          const char *format, va_list args)
 {
        const char *prefix;
@@ -95,48 +98,47 @@ libinput_default_log_func(enum libinput_log_priority priority,
        vfprintf(stderr, format, args);
 }
 
-struct log_data {
-       enum libinput_log_priority priority;
-       libinput_log_handler handler;
-       void *user_data;
-};
-
-static struct log_data log_data = {
-       .priority = LIBINPUT_LOG_PRIORITY_ERROR,
-       .handler = libinput_default_log_func,
-       .user_data = NULL,
-};
+void
+log_msg_va(struct libinput *libinput,
+          enum libinput_log_priority priority,
+          const char *format,
+          va_list args)
+{
+       if (libinput->log_handler &&
+           libinput->log_priority <= priority)
+               libinput->log_handler(libinput, priority, format, args);
+}
 
 void
-log_msg(enum libinput_log_priority priority, const char *format, ...)
+log_msg(struct libinput *libinput,
+       enum libinput_log_priority priority,
+       const char *format, ...)
 {
        va_list args;
 
-       if (log_data.handler && log_data.priority <= priority) {
-               va_start(args, format);
-               log_data.handler(priority, log_data.user_data, format, args);
-               va_end(args);
-       }
+       va_start(args, format);
+       log_msg_va(libinput, priority, format, args);
+       va_end(args);
 }
 
 LIBINPUT_EXPORT void
-libinput_log_set_priority(enum libinput_log_priority priority)
+libinput_log_set_priority(struct libinput *libinput,
+                         enum libinput_log_priority priority)
 {
-       log_data.priority = priority;
+       libinput->log_priority = priority;
 }
 
 LIBINPUT_EXPORT enum libinput_log_priority
-libinput_log_get_priority(void)
+libinput_log_get_priority(const struct libinput *libinput)
 {
-       return log_data.priority;
+       return libinput->log_priority;
 }
 
 LIBINPUT_EXPORT void
-libinput_log_set_handler(libinput_log_handler log_handler,
-                        void *user_data)
+libinput_log_set_handler(struct libinput *libinput,
+                        libinput_log_handler log_handler)
 {
-       log_data.handler = log_handler;
-       log_data.user_data = user_data;
+       libinput->log_handler = log_handler;
 }
 
 static void
@@ -275,43 +277,56 @@ libinput_event_keyboard_get_key(struct libinput_event_keyboard *event)
        return event->key;
 }
 
-LIBINPUT_EXPORT enum libinput_keyboard_key_state
+LIBINPUT_EXPORT enum libinput_key_state
 libinput_event_keyboard_get_key_state(struct libinput_event_keyboard *event)
 {
        return event->state;
 }
 
 LIBINPUT_EXPORT uint32_t
+libinput_event_keyboard_get_seat_key_count(
+       struct libinput_event_keyboard *event)
+{
+       return event->seat_key_count;
+}
+
+LIBINPUT_EXPORT uint32_t
 libinput_event_pointer_get_time(struct libinput_event_pointer *event)
 {
        return event->time;
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_dx(struct libinput_event_pointer *event)
 {
        return event->x;
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_dy(struct libinput_event_pointer *event)
 {
        return event->y;
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_absolute_x(struct libinput_event_pointer *event)
 {
-       return event->x;
+       struct evdev_device *device =
+               (struct evdev_device *) event->base.device;
+
+       return evdev_convert_to_mm(device->abs.absinfo_x, event->x);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_absolute_y(struct libinput_event_pointer *event)
 {
-       return event->y;
+       struct evdev_device *device =
+               (struct evdev_device *) event->base.device;
+
+       return evdev_convert_to_mm(device->abs.absinfo_y, event->y);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_absolute_x_transformed(
        struct libinput_event_pointer *event,
        uint32_t width)
@@ -322,7 +337,7 @@ libinput_event_pointer_get_absolute_x_transformed(
        return evdev_device_transform_x(device, event->x, width);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_absolute_y_transformed(
        struct libinput_event_pointer *event,
        uint32_t height)
@@ -339,19 +354,26 @@ libinput_event_pointer_get_button(struct libinput_event_pointer *event)
        return event->button;
 }
 
-LIBINPUT_EXPORT enum libinput_pointer_button_state
+LIBINPUT_EXPORT enum libinput_button_state
 libinput_event_pointer_get_button_state(struct libinput_event_pointer *event)
 {
        return event->state;
 }
 
+LIBINPUT_EXPORT uint32_t
+libinput_event_pointer_get_seat_button_count(
+       struct libinput_event_pointer *event)
+{
+       return event->seat_button_count;
+}
+
 LIBINPUT_EXPORT enum libinput_pointer_axis
 libinput_event_pointer_get_axis(struct libinput_event_pointer *event)
 {
        return event->axis;
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_pointer_get_axis_value(struct libinput_event_pointer *event)
 {
        return event->value;
@@ -375,13 +397,16 @@ libinput_event_touch_get_seat_slot(struct libinput_event_touch *event)
        return event->seat_slot;
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_touch_get_x(struct libinput_event_touch *event)
 {
-       return event->x;
+       struct evdev_device *device =
+               (struct evdev_device *) event->base.device;
+
+       return evdev_convert_to_mm(device->abs.absinfo_x, event->x);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_touch_get_x_transformed(struct libinput_event_touch *event,
                                       uint32_t width)
 {
@@ -391,7 +416,7 @@ libinput_event_touch_get_x_transformed(struct libinput_event_touch *event,
        return evdev_device_transform_x(device, event->x, width);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_touch_get_y_transformed(struct libinput_event_touch *event,
                                       uint32_t height)
 {
@@ -401,10 +426,13 @@ libinput_event_touch_get_y_transformed(struct libinput_event_touch *event,
        return evdev_device_transform_y(device, event->y, height);
 }
 
-LIBINPUT_EXPORT li_fixed_t
+LIBINPUT_EXPORT double
 libinput_event_touch_get_y(struct libinput_event_touch *event)
 {
-       return event->y;
+       struct evdev_device *device =
+               (struct evdev_device *) event->base.device;
+
+       return evdev_convert_to_mm(device->abs.absinfo_y, event->y);
 }
 
 struct libinput_source *
@@ -463,12 +491,21 @@ libinput_init(struct libinput *libinput,
                return -1;
        }
 
+       libinput->log_handler = libinput_default_log_func;
+       libinput->log_priority = LIBINPUT_LOG_PRIORITY_ERROR;
        libinput->interface = interface;
        libinput->interface_backend = interface_backend;
        libinput->user_data = user_data;
+       libinput->refcount = 1;
        list_init(&libinput->source_destroy_list);
        list_init(&libinput->seat_list);
 
+       if (libinput_timer_subsys_init(libinput) != 0) {
+               free(libinput->events);
+               close(libinput->epoll_fd);
+               return -1;
+       }
+
        return 0;
 }
 
@@ -488,15 +525,27 @@ libinput_drop_destroyed_sources(struct libinput *libinput)
        list_init(&libinput->source_destroy_list);
 }
 
-LIBINPUT_EXPORT void
-libinput_destroy(struct libinput *libinput)
+LIBINPUT_EXPORT struct libinput *
+libinput_ref(struct libinput *libinput)
+{
+       libinput->refcount++;
+       return libinput;
+}
+
+LIBINPUT_EXPORT struct libinput *
+libinput_unref(struct libinput *libinput)
 {
        struct libinput_event *event;
        struct libinput_device *device, *next_device;
        struct libinput_seat *seat, *next_seat;
 
        if (libinput == NULL)
-               return;
+               return NULL;
+
+       assert(libinput->refcount > 0);
+       libinput->refcount--;
+       if (libinput->refcount > 0)
+               return libinput;
 
        libinput_suspend(libinput);
 
@@ -505,8 +554,6 @@ libinput_destroy(struct libinput *libinput)
        while ((event = libinput_get_event(libinput)))
               libinput_event_destroy(event);
 
-       libinput_drop_destroyed_sources(libinput);
-
        free(libinput->events);
 
        list_for_each_safe(seat, next_seat, &libinput->seat_list, link) {
@@ -518,8 +565,12 @@ libinput_destroy(struct libinput *libinput)
                libinput_seat_destroy(seat);
        }
 
+       libinput_timer_subsys_destroy(libinput);
+       libinput_drop_destroyed_sources(libinput);
        close(libinput->epoll_fd);
        free(libinput);
+
+       return NULL;
 }
 
 LIBINPUT_EXPORT void
@@ -565,10 +616,11 @@ libinput_seat_init(struct libinput_seat *seat,
        list_insert(&libinput->seat_list, &seat->link);
 }
 
-LIBINPUT_EXPORT void
+LIBINPUT_EXPORT struct libinput_seat *
 libinput_seat_ref(struct libinput_seat *seat)
 {
        seat->refcount++;
+       return seat;
 }
 
 static void
@@ -580,13 +632,17 @@ libinput_seat_destroy(struct libinput_seat *seat)
        seat->destroy(seat);
 }
 
-LIBINPUT_EXPORT void
+LIBINPUT_EXPORT struct libinput_seat *
 libinput_seat_unref(struct libinput_seat *seat)
 {
        assert(seat->refcount > 0);
        seat->refcount--;
-       if (seat->refcount == 0)
+       if (seat->refcount == 0) {
                libinput_seat_destroy(seat);
+               return NULL;
+       } else {
+               return seat;
+       }
 }
 
 LIBINPUT_EXPORT void
@@ -621,10 +677,11 @@ libinput_device_init(struct libinput_device *device,
        device->refcount = 1;
 }
 
-LIBINPUT_EXPORT void
+LIBINPUT_EXPORT struct libinput_device *
 libinput_device_ref(struct libinput_device *device)
 {
        device->refcount++;
+       return device;
 }
 
 static void
@@ -633,13 +690,17 @@ libinput_device_destroy(struct libinput_device *device)
        evdev_device_destroy((struct evdev_device *) device);
 }
 
-LIBINPUT_EXPORT void
+LIBINPUT_EXPORT struct libinput_device *
 libinput_device_unref(struct libinput_device *device)
 {
        assert(device->refcount > 0);
        device->refcount--;
-       if (device->refcount == 0)
+       if (device->refcount == 0) {
                libinput_device_destroy(device);
+               return NULL;
+       } else {
+               return device;
+       }
 }
 
 LIBINPUT_EXPORT int
@@ -672,6 +733,48 @@ libinput_dispatch(struct libinput *libinput)
        return 0;
 }
 
+static uint32_t
+update_seat_key_count(struct libinput_seat *seat,
+                     int32_t key,
+                     enum libinput_key_state state)
+{
+       assert(key >= 0 && key <= KEY_MAX);
+
+       switch (state) {
+       case LIBINPUT_KEY_STATE_PRESSED:
+               return ++seat->button_count[key];
+       case LIBINPUT_KEY_STATE_RELEASED:
+               /* We might not have received the first PRESSED event. */
+               if (seat->button_count[key] == 0)
+                       return 0;
+
+               return --seat->button_count[key];
+       }
+
+       return 0;
+}
+
+static uint32_t
+update_seat_button_count(struct libinput_seat *seat,
+                        int32_t button,
+                        enum libinput_button_state state)
+{
+       assert(button >= 0 && button <= KEY_MAX);
+
+       switch (state) {
+       case LIBINPUT_BUTTON_STATE_PRESSED:
+               return ++seat->button_count[button];
+       case LIBINPUT_BUTTON_STATE_RELEASED:
+               /* We might not have received the first PRESSED event. */
+               if (seat->button_count[button] == 0)
+                       return 0;
+
+               return --seat->button_count[button];
+       }
+
+       return 0;
+}
+
 static void
 init_event_base(struct libinput_event *event,
                struct libinput_device *device,
@@ -732,18 +835,22 @@ void
 keyboard_notify_key(struct libinput_device *device,
                    uint32_t time,
                    uint32_t key,
-                   enum libinput_keyboard_key_state state)
+                   enum libinput_key_state state)
 {
        struct libinput_event_keyboard *key_event;
+       uint32_t seat_key_count;
 
        key_event = zalloc(sizeof *key_event);
        if (!key_event)
                return;
 
+       seat_key_count = update_seat_key_count(device->seat, key, state);
+
        *key_event = (struct libinput_event_keyboard) {
                .time = time,
                .key = key,
                .state = state,
+               .seat_key_count = seat_key_count,
        };
 
        post_device_event(device,
@@ -754,8 +861,8 @@ keyboard_notify_key(struct libinput_device *device,
 void
 pointer_notify_motion(struct libinput_device *device,
                      uint32_t time,
-                     li_fixed_t dx,
-                     li_fixed_t dy)
+                     double dx,
+                     double dy)
 {
        struct libinput_event_pointer *motion_event;
 
@@ -777,8 +884,8 @@ pointer_notify_motion(struct libinput_device *device,
 void
 pointer_notify_motion_absolute(struct libinput_device *device,
                               uint32_t time,
-                              li_fixed_t x,
-                              li_fixed_t y)
+                              double x,
+                              double y)
 {
        struct libinput_event_pointer *motion_absolute_event;
 
@@ -801,18 +908,24 @@ void
 pointer_notify_button(struct libinput_device *device,
                      uint32_t time,
                      int32_t button,
-                     enum libinput_pointer_button_state state)
+                     enum libinput_button_state state)
 {
        struct libinput_event_pointer *button_event;
+       int32_t seat_button_count;
 
        button_event = zalloc(sizeof *button_event);
        if (!button_event)
                return;
 
+       seat_button_count = update_seat_button_count(device->seat,
+                                                    button,
+                                                    state);
+
        *button_event = (struct libinput_event_pointer) {
                .time = time,
                .button = button,
                .state = state,
+               .seat_button_count = seat_button_count,
        };
 
        post_device_event(device,
@@ -824,7 +937,7 @@ void
 pointer_notify_axis(struct libinput_device *device,
                    uint32_t time,
                    enum libinput_pointer_axis axis,
-                   li_fixed_t value)
+                   double value)
 {
        struct libinput_event_pointer *axis_event;
 
@@ -848,8 +961,8 @@ touch_notify_touch_down(struct libinput_device *device,
                        uint32_t time,
                        int32_t slot,
                        int32_t seat_slot,
-                       li_fixed_t x,
-                       li_fixed_t y)
+                       double x,
+                       double y)
 {
        struct libinput_event_touch *touch_event;
 
@@ -875,8 +988,8 @@ touch_notify_touch_motion(struct libinput_device *device,
                          uint32_t time,
                          int32_t slot,
                          int32_t seat_slot,
-                         li_fixed_t x,
-                         li_fixed_t y)
+                         double x,
+                         double y)
 {
        struct libinput_event_touch *touch_event;
 
@@ -939,7 +1052,6 @@ touch_notify_frame(struct libinput_device *device,
                          &touch_event->base);
 }
 
-
 static void
 libinput_post_event(struct libinput *libinput,
                    struct libinput_event *event)
@@ -1049,6 +1161,24 @@ libinput_device_get_sysname(struct libinput_device *device)
 }
 
 LIBINPUT_EXPORT const char *
+libinput_device_get_name(struct libinput_device *device)
+{
+       return evdev_device_get_name((struct evdev_device *) device);
+}
+
+LIBINPUT_EXPORT unsigned int
+libinput_device_get_id_product(struct libinput_device *device)
+{
+       return evdev_device_get_id_product((struct evdev_device *) device);
+}
+
+LIBINPUT_EXPORT unsigned int
+libinput_device_get_id_vendor(struct libinput_device *device)
+{
+       return evdev_device_get_id_vendor((struct evdev_device *) device);
+}
+
+LIBINPUT_EXPORT const char *
 libinput_device_get_output_name(struct libinput_device *device)
 {
        return evdev_device_get_output((struct evdev_device *) device);
@@ -1091,6 +1221,16 @@ libinput_device_has_capability(struct libinput_device *device,
                                           capability);
 }
 
+LIBINPUT_EXPORT int
+libinput_device_get_size(struct libinput_device *device,
+                        double *width,
+                        double *height)
+{
+       return evdev_device_get_size((struct evdev_device *)device,
+                                    width,
+                                    height);
+}
+
 LIBINPUT_EXPORT struct libinput_event *
 libinput_event_device_notify_get_base_event(struct libinput_event_device_notify *event)
 {
@@ -1114,3 +1254,62 @@ libinput_event_touch_get_base_event(struct libinput_event_touch *event)
 {
        return &event->base;
 }
+
+LIBINPUT_EXPORT const char *
+libinput_config_status_to_str(enum libinput_config_status status)
+{
+       const char *str = NULL;
+
+       switch(status) {
+       case LIBINPUT_CONFIG_STATUS_SUCCESS:
+               str = "Success";
+               break;
+       case LIBINPUT_CONFIG_STATUS_UNSUPPORTED:
+               str = "Unsupported configuration option";
+               break;
+       case LIBINPUT_CONFIG_STATUS_INVALID:
+               str = "Invalid argument range";
+               break;
+       }
+
+       return str;
+}
+
+LIBINPUT_EXPORT int
+libinput_device_config_tap_get_finger_count(struct libinput_device *device)
+{
+       return device->config.tap ? device->config.tap->count(device) : 0;
+}
+
+LIBINPUT_EXPORT enum libinput_config_status
+libinput_device_config_tap_set_enabled(struct libinput_device *device,
+                                      enum libinput_config_tap_state enable)
+{
+       if (enable != LIBINPUT_CONFIG_TAP_ENABLED &&
+           enable != LIBINPUT_CONFIG_TAP_DISABLED)
+               return LIBINPUT_CONFIG_STATUS_INVALID;
+
+       if (enable &&
+           libinput_device_config_tap_get_finger_count(device) == 0)
+               return LIBINPUT_CONFIG_STATUS_UNSUPPORTED;
+
+       return device->config.tap->set_enabled(device, enable);
+}
+
+LIBINPUT_EXPORT enum libinput_config_tap_state
+libinput_device_config_tap_get_enabled(struct libinput_device *device)
+{
+       if (libinput_device_config_tap_get_finger_count(device) == 0)
+               return LIBINPUT_CONFIG_TAP_DISABLED;
+
+       return device->config.tap->get_enabled(device);
+}
+
+LIBINPUT_EXPORT enum libinput_config_tap_state
+libinput_device_config_tap_get_default_enabled(struct libinput_device *device)
+{
+       if (libinput_device_config_tap_get_finger_count(device) == 0)
+               return LIBINPUT_CONFIG_TAP_DISABLED;
+
+       return device->config.tap->get_default(device);
+}