[PATCH libinput 3/5] Add evdev_dispatch interface for lid switch
Peter Hutterer
peter.hutterer at who-t.net
Thu Jan 5 09:27:46 UTC 2017
On Thu, Jan 05, 2017 at 05:11:27PM +1100, James Ye wrote:
> Create a lid_switch_interface to handle lid switch events, so touchpad
typo: so *the* touchpad ...
> can be disabled when lid is closed.
> ---
> src/evdev.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
> src/evdev.h | 8 ++++++
> 2 files changed, 98 insertions(+), 2 deletions(-)
>
> diff --git a/src/evdev.c b/src/evdev.c
> index c06daa6..94b1a2e 100644
> --- a/src/evdev.c
> +++ b/src/evdev.c
> @@ -68,6 +68,7 @@ enum evdev_device_udev_tags {
> EVDEV_UDEV_TAG_TABLET_PAD = (1 << 8),
> EVDEV_UDEV_TAG_POINTINGSTICK = (1 << 9),
> EVDEV_UDEV_TAG_TRACKBALL = (1 << 10),
> + EVDEV_UDEV_TAG_SWITCH = (1 << 11),
> };
>
> struct evdev_udev_tag_match {
> @@ -88,6 +89,7 @@ static const struct evdev_udev_tag_match evdev_udev_tag_matches[] = {
> {"ID_INPUT_ACCELEROMETER", EVDEV_UDEV_TAG_ACCELEROMETER},
> {"ID_INPUT_POINTINGSTICK", EVDEV_UDEV_TAG_POINTINGSTICK},
> {"ID_INPUT_TRACKBALL", EVDEV_UDEV_TAG_TRACKBALL},
> + {"ID_INPUT_SWITCH", EVDEV_UDEV_TAG_SWITCH},
>
> /* sentinel value */
> { 0 },
> @@ -1072,6 +1074,13 @@ evdev_tag_keyboard(struct evdev_device *device,
> }
>
> static void
> +evdev_tag_lid_switch(struct evdev_device *device,
> + struct udev_device *udev_device)
> +{
> + device->tags |= EVDEV_TAG_LID_SWITCH;
> +}
> +
> +static void
> fallback_process(struct evdev_dispatch *evdev_dispatch,
> struct evdev_device *device,
> struct input_event *event,
> @@ -1113,6 +1122,31 @@ fallback_process(struct evdev_dispatch *evdev_dispatch,
> }
>
> static void
> +lid_switch_process(struct evdev_dispatch *evdev_dispatch,
> + struct evdev_device *device,
> + struct input_event *event,
> + uint64_t time)
> +{
> + struct lid_switch_dispatch *dispatch = (struct lid_switch_dispatch*)evdev_dispatch;
all these need to be split over two lines to fit within the limits
> +
> + switch (event->type) {
> + case EV_SW:
> + dispatch->lid_is_closed = event->value;
use !!event->value here to make sure/obvious it's a boolean.
> +
> + switch_notify_toggle(&device->base,
> + time,
> + LIBINPUT_SWITCH_LID,
> + dispatch->lid_is_closed);
> + break;
> + case EV_SYN:
> + break;
> + default:
> + assert(0 && "Unknown event type");
> + break;
> + }
> +}
> +
> +static void
> release_touches(struct fallback_dispatch *dispatch,
> struct evdev_device *device,
> uint64_t time)
> @@ -1237,6 +1271,14 @@ fallback_destroy(struct evdev_dispatch *evdev_dispatch)
> free(dispatch);
> }
>
> +static void
> +lid_switch_destroy(struct evdev_dispatch *evdev_dispatch)
> +{
> + struct lid_switch_dispatch *dispatch = (struct lid_switch_dispatch*)evdev_dispatch;
> +
> + free(dispatch);
> +}
> +
> static int
> evdev_calibration_has_matrix(struct libinput_device *libinput_device)
> {
> @@ -1291,6 +1333,19 @@ struct evdev_dispatch_interface fallback_interface = {
> fallback_toggle_touch, /* toggle_touch */
> };
>
> +struct evdev_dispatch_interface lid_switch_interface = {
> + lid_switch_process,
> + NULL, /* suspend */
> + NULL, /* remove */
> + lid_switch_destroy,
> + NULL, /* device_added */
> + NULL, /* device_removed */
> + NULL, /* device_suspended */
> + NULL, /* device_resumed */
> + NULL, /* post_added */
> + NULL, /* toggle_touch */
> +};
> +
> static uint32_t
> evdev_sendevents_get_modes(struct libinput_device *device)
> {
> @@ -1800,6 +1855,25 @@ fallback_dispatch_create(struct libinput_device *device)
> return &dispatch->base;
> }
>
> +static struct evdev_dispatch *
> +lid_switch_dispatch_create(struct libinput_device *device)
> +{
> + struct lid_switch_dispatch *dispatch = zalloc(sizeof *dispatch);
> + struct evdev_device *lid_device = (struct evdev_device *)device;
> +
> + if (dispatch == NULL)
> + return NULL;
> +
> + dispatch->base.interface = &lid_switch_interface;
> +
> + evdev_init_sendevents(lid_device, &dispatch->base);
> +
> + dispatch->lid_is_closed = 0;
'false' instead of 0 for booleans
> +
> + return &dispatch->base;
> +}
> +
> +
> static inline void
> evdev_process_event(struct evdev_device *device, struct input_event *e)
> {
> @@ -2508,7 +2582,7 @@ evdev_configure_device(struct evdev_device *device)
> }
>
> log_info(libinput,
> - "input device '%s', %s is tagged by udev as:%s%s%s%s%s%s%s%s%s%s\n",
> + "input device '%s', %s is tagged by udev as:%s%s%s%s%s%s%s%s%s%s%s\n",
> device->devname, devnode,
> udev_tags & EVDEV_UDEV_TAG_KEYBOARD ? " Keyboard" : "",
> udev_tags & EVDEV_UDEV_TAG_MOUSE ? " Mouse" : "",
> @@ -2519,7 +2593,8 @@ evdev_configure_device(struct evdev_device *device)
> udev_tags & EVDEV_UDEV_TAG_JOYSTICK ? " Joystick" : "",
> udev_tags & EVDEV_UDEV_TAG_ACCELEROMETER ? " Accelerometer" : "",
> udev_tags & EVDEV_UDEV_TAG_TABLET_PAD ? " TabletPad" : "",
> - udev_tags & EVDEV_UDEV_TAG_TRACKBALL ? " Trackball" : "");
> + udev_tags & EVDEV_UDEV_TAG_TRACKBALL ? " Trackball" : "",
> + udev_tags & EVDEV_UDEV_TAG_SWITCH ? " Switch" : "");
>
> if (udev_tags & EVDEV_UDEV_TAG_ACCELEROMETER) {
> log_info(libinput,
> @@ -2631,6 +2706,17 @@ evdev_configure_device(struct evdev_device *device)
> device->devname, devnode);
> }
>
> + if (udev_tags & EVDEV_UDEV_TAG_SWITCH &&
> + libevdev_has_event_code(evdev, EV_SW, SW_LID)) {
> + dispatch = lid_switch_dispatch_create(&device->base);
> + device->seat_caps |= EVDEV_DEVICE_SWITCH;
> + evdev_tag_lid_switch(device, device->udev_device);
> + log_info(libinput,
> + "input device '%s', %s is a lid switch device\n",
let's just use "is a switch device" here.
These are just nipicks,
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net> otherwise, thanks
Cheers,
Peter
> + device->devname, devnode);
> + return dispatch;
> + }
> +
> if (device->seat_caps & EVDEV_DEVICE_POINTER &&
> libevdev_has_event_code(evdev, EV_REL, REL_X) &&
> libevdev_has_event_code(evdev, EV_REL, REL_Y) &&
> @@ -3062,6 +3148,8 @@ evdev_device_has_capability(struct evdev_device *device,
> return !!(device->seat_caps & EVDEV_DEVICE_TABLET);
> case LIBINPUT_DEVICE_CAP_TABLET_PAD:
> return !!(device->seat_caps & EVDEV_DEVICE_TABLET_PAD);
> + case LIBINPUT_DEVICE_CAP_SWITCH:
> + return !!(device->seat_caps & EVDEV_DEVICE_SWITCH);
> default:
> return false;
> }
> diff --git a/src/evdev.h b/src/evdev.h
> index c07b09f..d65510c 100644
> --- a/src/evdev.h
> +++ b/src/evdev.h
> @@ -63,6 +63,7 @@ enum evdev_device_seat_capability {
> EVDEV_DEVICE_TABLET = (1 << 3),
> EVDEV_DEVICE_TABLET_PAD = (1 << 4),
> EVDEV_DEVICE_GESTURE = (1 << 5),
> + EVDEV_DEVICE_SWITCH = (1 << 6),
> };
>
> enum evdev_device_tags {
> @@ -71,6 +72,7 @@ enum evdev_device_tags {
> EVDEV_TAG_EXTERNAL_TOUCHPAD = (1 << 2),
> EVDEV_TAG_TRACKPOINT = (1 << 3),
> EVDEV_TAG_KEYBOARD = (1 << 4),
> + EVDEV_TAG_LID_SWITCH = (1 << 5),
> };
>
> enum evdev_middlebutton_state {
> @@ -332,6 +334,12 @@ struct fallback_dispatch {
> bool ignore_events;
> };
>
> +struct lid_switch_dispatch {
> + struct evdev_dispatch base;
> +
> + bool lid_is_closed;
> +};
> +
> struct evdev_device *
> evdev_device_create(struct libinput_seat *seat,
> struct udev_device *device);
> --
> 2.9.3
>
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