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71733433ed
Report guest HID keyboard LED state from LGInput to LGIdd and publish it with the LGMP input endpoint status. Forward SPICE modifier updates through the same provider state so evdev can synchronize physical keyboard LEDs across transport changes and reconnects. Bump the versioned pipe and KVMFR input status contracts for the new feedback state. Accept earlier LGMP input status versions without LED feedback so the client retains input while the guest driver is being upgraded.
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_LG_CLIENT_INPUT_INTERFACE_
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#define _H_LG_CLIENT_INPUT_INTERFACE_
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#include <stdbool.h>
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#include <stdint.h>
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typedef enum LG_InputSupport
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{
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LG_INPUT_SUPPORT_MOUSE_ABSOLUTE,
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}
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LG_InputSupport;
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enum
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{
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LG_KEYBOARD_LED_NUM_LOCK = 0x1,
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LG_KEYBOARD_LED_CAPS_LOCK = 0x2,
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LG_KEYBOARD_LED_SCROLL_LOCK = 0x4,
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LG_KEYBOARD_LED_COMPOSE = 0x8,
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LG_KEYBOARD_LED_KANA = 0x10,
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};
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typedef struct LG_InputStatus
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{
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bool available;
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uint32_t generation;
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/* USB HID keyboard LED bits reported by the guest. */
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bool keyboardLEDsValid;
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uint8_t keyboardLEDs;
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}
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LG_InputStatus;
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typedef void (*LG_InputStatusFn)(void * opaque,
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const LG_InputStatus * status);
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typedef struct LG_InputOps
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{
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const char * name;
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/* Operations must fail safely if a remote endpoint disappears. */
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bool (*supports)(void * opaque, LG_InputSupport support);
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/* Registration must synchronously report the current status after releasing
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* any backend locks. Passing NULL unregisters the listener. */
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void (*setStatusListener)(void * opaque, LG_InputStatusFn callback,
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void * callbackOpaque);
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/* Keyboard codes use the Linux input-event KEY_* values. */
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bool (*keyDown)(void * opaque, int key);
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bool (*keyUp)(void * opaque, int key);
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bool (*keyboardLEDs)(void * opaque, bool numLock, bool capsLock,
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bool scrollLock);
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bool (*mouseMotion)(void * opaque, int32_t x, int32_t y);
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/* Position is in guest pixels and must be within the supplied dimensions. */
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bool (*mousePosition)(void * opaque, uint32_t x, uint32_t y,
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uint32_t width, uint32_t height);
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/* Button order: left, middle, right, wheel up/down, then HID buttons 4+. */
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bool (*mousePress)(void * opaque, unsigned int button);
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bool (*mouseRelease)(void * opaque, unsigned int button);
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/* Restore all devices owned by this implementation to a neutral state.
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* This must safely tolerate the remote input endpoint becoming unavailable. */
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void (*reset)(void * opaque);
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}
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LG_InputOps;
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#endif
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