xref: /openbmc/qemu/ui/dbus-display1.xml (revision b14df228)
1<?xml version="1.0" encoding="utf-8"?>
2<node>
3  <!--
4      org.qemu.Display1.VM:
5
6      This interface is implemented on ``/org/qemu/Display1/VM``.
7  -->
8  <interface name="org.qemu.Display1.VM">
9    <!--
10        Name:
11
12        The name of the VM.
13    -->
14    <property name="Name" type="s" access="read"/>
15
16    <!--
17        UUID:
18
19        The UUID of the VM.
20    -->
21    <property name="UUID" type="s" access="read"/>
22
23    <!--
24        ConsoleIDs:
25
26        The list of consoles available on ``/org/qemu/Display1/Console_$id``.
27    -->
28    <property name="ConsoleIDs" type="au" access="read"/>
29  </interface>
30
31  <!--
32      org.qemu.Display1.Console:
33
34      This interface is implemented on ``/org/qemu/Display1/Console_$id``. You
35      may discover available consoles through introspection or with the
36      :dbus:prop:`org.qemu.Display1.VM.ConsoleIDs` property.
37
38      A console is attached to a video device head. It may be "Graphic" or
39      "Text" (see :dbus:prop:`Type` and other properties).
40
41      Interactions with a console may be done with
42      :dbus:iface:`org.qemu.Display1.Keyboard` and
43      :dbus:iface:`org.qemu.Display1.Mouse` interfaces when available.
44  -->
45  <interface name="org.qemu.Display1.Console">
46    <!--
47        RegisterListener:
48        @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
49
50        Register a console listener, which will receive display updates, until
51        it is disconnected.
52
53        Multiple listeners may be registered simultaneously.
54
55        The listener is expected to implement the
56        :dbus:iface:`org.qemu.Display1.Listener` interface.
57    -->
58    <method name="RegisterListener">
59      <arg type="h" name="listener" direction="in"/>
60    </method>
61
62    <!--
63        SetUIInfo:
64        @width_mm: the physical display width in millimeters.
65        @height_mm: the physical display height in millimeters.
66        @xoff: horizontal offset, in pixels.
67        @yoff: vertical offset, in pixels.
68        @width: console width, in pixels.
69        @height: console height, in pixels.
70
71        Modify the dimensions and display settings.
72    -->
73    <method name="SetUIInfo">
74      <arg name="width_mm" type="q" direction="in"/>
75      <arg name="height_mm" type="q" direction="in"/>
76      <arg name="xoff" type="i" direction="in"/>
77      <arg name="yoff" type="i" direction="in"/>
78      <arg name="width" type="u" direction="in"/>
79      <arg name="height" type="u" direction="in"/>
80    </method>
81
82    <!--
83        Label:
84
85        A user-friendly name for the console (for ex: "VGA").
86    -->
87    <property name="Label" type="s" access="read"/>
88
89    <!--
90        Head:
91
92        Graphical device head number.
93    -->
94    <property name="Head" type="u" access="read"/>
95
96    <!--
97        Type:
98
99        Console type ("Graphic" or "Text").
100    -->
101    <property name="Type" type="s" access="read"/>
102
103    <!--
104        Width:
105
106        Console width, in pixels.
107    -->
108    <property name="Width" type="u" access="read"/>
109
110    <!--
111        Height:
112
113        Console height, in pixels.
114    -->
115    <property name="Height" type="u" access="read"/>
116
117    <!--
118        DeviceAddress:
119
120        The device address (ex: "pci/0000/02.0").
121    -->
122    <property name="DeviceAddress" type="s" access="read"/>
123  </interface>
124
125  <!--
126      org.qemu.Display1.Keyboard:
127
128      This interface in implemented on ``/org/qemu/Display1/Console_$id`` (see
129      :dbus:iface:`~org.qemu.Display1.Console`).
130  -->
131  <interface name="org.qemu.Display1.Keyboard">
132    <!--
133        Press:
134        @keycode: QEMU key number (xtkbd + special re-encoding of high bit)
135
136        Send a key press event.
137    -->
138    <method name="Press">
139      <arg type="u" name="keycode" direction="in"/>
140    </method>
141
142    <!--
143        Release:
144        @keycode: QEMU key number (xtkbd + special re-encoding of high bit)
145
146        Send a key release event.
147    -->
148    <method name="Release">
149      <arg type="u" name="keycode" direction="in"/>
150    </method>
151
152    <!--
153        Modifiers:
154
155        The active keyboard modifiers::
156
157          Scroll = 1 << 0
158          Num    = 1 << 1
159          Caps   = 1 << 2
160    -->
161    <property name="Modifiers" type="u" access="read"/>
162  </interface>
163
164  <!--
165      org.qemu.Display1.Mouse:
166
167      This interface in implemented on ``/org/qemu/Display1/Console_$id`` (see
168      :dbus:iface:`~org.qemu.Display1.Console` documentation).
169
170      .. _dbus-button-values:
171
172      **Button values**::
173
174        Left       = 0
175        Middle     = 1
176        Right      = 2
177        Wheel-up   = 3
178        Wheel-down = 4
179        Side       = 5
180        Extra      = 6
181  -->
182  <interface name="org.qemu.Display1.Mouse">
183    <!--
184        Press:
185        @button: :ref:`button value<dbus-button-values>`.
186
187        Send a mouse button press event.
188    -->
189    <method name="Press">
190      <arg type="u" name="button" direction="in"/>
191    </method>
192
193    <!--
194        Release:
195        @button: :ref:`button value<dbus-button-values>`.
196
197        Send a mouse button release event.
198    -->
199    <method name="Release">
200      <arg type="u" name="button" direction="in"/>
201    </method>
202
203    <!--
204        SetAbsPosition:
205        @x: X position, in pixels.
206        @y: Y position, in pixels.
207
208        Set the mouse pointer position.
209
210        Returns an error if not :dbus:prop:`IsAbsolute`.
211    -->
212    <method name="SetAbsPosition">
213      <arg type="u" name="x" direction="in"/>
214      <arg type="u" name="y" direction="in"/>
215    </method>
216
217    <!--
218        RelMotion:
219        @dx: X-delta, in pixels.
220        @dy: Y-delta, in pixels.
221
222        Move the mouse pointer position, relative to the current position.
223
224        Returns an error if :dbus:prop:`IsAbsolute`.
225    -->
226    <method name="RelMotion">
227      <arg type="i" name="dx" direction="in"/>
228      <arg type="i" name="dy" direction="in"/>
229    </method>
230
231    <!--
232        IsAbsolute:
233
234        Whether the mouse is using absolute movements.
235    -->
236    <property name="IsAbsolute" type="b" access="read"/>
237  </interface>
238
239  <!--
240      org.qemu.Display1.Listener:
241
242      This client-side interface must be available on
243      ``/org/qemu/Display1/Listener`` when registering the peer-to-peer
244      connection with :dbus:meth:`~org.qemu.Display1.Console.Register`.
245  -->
246  <interface name="org.qemu.Display1.Listener">
247    <!--
248        Scanout:
249        @width: display width, in pixels.
250        @height: display height, in pixels.
251        @stride: data stride, in bytes.
252        @pixman_format: image format (ex: ``PIXMAN_X8R8G8B8``).
253        @data: image data.
254
255        Resize and update the display content.
256
257        The data to transfer for the display update may be large. The preferred
258        scanout method is :dbus:meth:`ScanoutDMABUF`, used whenever possible.
259    -->
260    <method name="Scanout">
261      <arg type="u" name="width" direction="in"/>
262      <arg type="u" name="height" direction="in"/>
263      <arg type="u" name="stride" direction="in"/>
264      <arg type="u" name="pixman_format" direction="in"/>
265      <arg type="ay" name="data" direction="in">
266        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
267      </arg>
268    </method>
269
270    <!--
271        Update:
272        @x: X update position, in pixels.
273        @y: Y update position, in pixels.
274        @width: update width, in pixels.
275        @height: update height, in pixels.
276        @stride: data stride, in bytes.
277        @pixman_format: image format (ex: ``PIXMAN_X8R8G8B8``).
278        @data: display image data.
279
280        Update the display content.
281
282        This method is only called after a :dbus:meth:`Scanout` call.
283    -->
284    <method name="Update">
285      <arg type="i" name="x" direction="in"/>
286      <arg type="i" name="y" direction="in"/>
287      <arg type="i" name="width" direction="in"/>
288      <arg type="i" name="height" direction="in"/>
289      <arg type="u" name="stride" direction="in"/>
290      <arg type="u" name="pixman_format" direction="in"/>
291      <arg type="ay" name="data" direction="in">
292        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
293      </arg>
294    </method>
295
296    <!--
297        ScanoutDMABUF:
298        @dmabuf: the DMABUF file descriptor.
299        @width: display width, in pixels.
300        @height: display height, in pixels.
301        @stride: stride, in bytes.
302        @fourcc: DMABUF fourcc.
303        @modifier: DMABUF modifier.
304        @y0_top: whether Y position 0 is the top or not.
305
306        Resize and update the display content with a DMABUF.
307    -->
308    <method name="ScanoutDMABUF">
309      <arg type="h" name="dmabuf" direction="in"/>
310      <arg type="u" name="width" direction="in"/>
311      <arg type="u" name="height" direction="in"/>
312      <arg type="u" name="stride" direction="in"/>
313      <arg type="u" name="fourcc" direction="in"/>
314      <!-- xywh? -->
315      <arg type="t" name="modifier" direction="in"/>
316      <arg type="b" name="y0_top" direction="in"/>
317    </method>
318
319    <!--
320        UpdateDMABUF:
321        @x: the X update position, in pixels.
322        @y: the Y update position, in pixels.
323        @width: the update width, in pixels.
324        @height: the update height, in pixels.
325
326        Update the display content with the current DMABUF and the given region.
327    -->
328    <method name="UpdateDMABUF">
329      <arg type="i" name="x" direction="in"/>
330      <arg type="i" name="y" direction="in"/>
331      <arg type="i" name="width" direction="in"/>
332      <arg type="i" name="height" direction="in"/>
333    </method>
334
335    <!--
336        Disable:
337
338        Disable the display (turn it off).
339    -->
340    <method name="Disable">
341    </method>
342
343    <!--
344        MouseSet:
345        @x: X mouse position, in pixels.
346        @y: Y mouse position, in pixels.
347        @on: whether the mouse is visible or not.
348
349        Set the mouse position and visibility.
350    -->
351    <method name="MouseSet">
352      <arg type="i" name="x" direction="in"/>
353      <arg type="i" name="y" direction="in"/>
354      <arg type="i" name="on" direction="in"/>
355    </method>
356
357    <!--
358        CursorDefine:
359        @width: cursor width, in pixels.
360        @height: cursor height, in pixels.
361        @hot_x: hot-spot X position, in pixels.
362        @hot_y: hot-spot Y position, in pixels.
363        @data: the cursor data.
364
365        Set the mouse cursor shape and hot-spot. The "data" must be ARGB, 32-bit
366        per pixel.
367    -->
368    <method name="CursorDefine">
369      <arg type="i" name="width" direction="in"/>
370      <arg type="i" name="height" direction="in"/>
371      <arg type="i" name="hot_x" direction="in"/>
372      <arg type="i" name="hot_y" direction="in"/>
373      <arg type="ay" name="data" direction="in">
374        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
375      </arg>
376    </method>
377  </interface>
378
379  <!--
380      org.qemu.Display1.Clipboard:
381
382      This interface must be implemented by both the client and the server on
383      ``/org/qemu/Display1/Clipboard`` to support clipboard sharing between
384      the client and the guest.
385
386      Once :dbus:meth:`Register`'ed, method calls may be sent and received in both
387      directions. Unregistered callers will get error replies.
388
389      .. _dbus-clipboard-selection:
390
391      **Selection values**::
392
393        Clipboard   = 0
394        Primary     = 1
395        Secondary   = 2
396
397      .. _dbus-clipboard-serial:
398
399      **Serial counter**
400
401      To solve potential clipboard races, clipboard grabs have an associated
402      serial counter. It is set to 0 on registration, and incremented by 1 for
403      each grab. The peer with the highest serial is the clipboard grab owner.
404
405      When a grab with a lower serial is received, it should be discarded.
406
407      When a grab is attempted with the same serial number as the current grab,
408      the one coming from the client should have higher priority, and the client
409      should gain clipboard grab ownership.
410  -->
411  <interface name="org.qemu.Display1.Clipboard">
412    <!--
413        Register:
414
415        Register a clipboard session and reinitialize the serial counter.
416
417        The client must register itself, and is granted an exclusive
418        access for handling the clipboard.
419
420        The server can reinitialize the session as well (to reset the counter).
421    -->
422    <method name="Register"/>
423
424    <!--
425        Unregister:
426
427        Unregister the clipboard session.
428    -->
429    <method name="Unregister"/>
430    <!--
431        Grab:
432        @selection: a :ref:`selection value<dbus-clipboard-selection>`.
433        @serial: the current grab :ref:`serial<dbus-clipboard-serial>`.
434        @mimes: the list of available content MIME types.
435
436        Grab the clipboard, claiming current clipboard content.
437    -->
438    <method name="Grab">
439      <arg type="u" name="selection"/>
440      <arg type="u" name="serial"/>
441      <arg type="as" name="mimes"/>
442    </method>
443
444    <!--
445        Release:
446        @selection: a :ref:`selection value<dbus-clipboard-selection>`.
447
448        Release the clipboard (does nothing if not the current owner).
449    -->
450    <method name="Release">
451      <arg type="u" name="selection"/>
452    </method>
453
454    <!--
455        Request:
456        @selection: a :ref:`selection value<dbus-clipboard-selection>`
457        @mimes: requested MIME types (by order of preference).
458        @reply_mime: the returned data MIME type.
459        @data: the clipboard data.
460
461        Request the clipboard content.
462
463        Return an error if the clipboard is empty, or the requested MIME types
464        are unavailable.
465    -->
466    <method name="Request">
467      <arg type="u" name="selection"/>
468      <arg type="as" name="mimes"/>
469      <arg type="s" name="reply_mime" direction="out"/>
470      <arg type="ay" name="data" direction="out">
471        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
472      </arg>
473    </method>
474  </interface>
475
476  <!--
477      org.qemu.Display1.Audio:
478
479      Audio backend may be available on ``/org/qemu/Display1/Audio``.
480  -->
481  <interface name="org.qemu.Display1.Audio">
482    <!--
483        RegisterOutListener:
484        @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
485
486        Register an audio backend playback handler.
487
488        Multiple listeners may be registered simultaneously.
489
490        The listener is expected to implement the
491        :dbus:iface:`org.qemu.Display1.AudioOutListener` interface.
492    -->
493    <method name="RegisterOutListener">
494      <arg type="h" name="listener" direction="in"/>
495    </method>
496
497    <!--
498        RegisterInListener:
499        @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
500
501        Register an audio backend record handler.
502
503        Multiple listeners may be registered simultaneously.
504
505        The listener is expected to implement the
506        :dbus:iface:`org.qemu.Display1.AudioInListener` interface.
507    -->
508    <method name="RegisterInListener">
509      <arg type="h" name="listener" direction="in"/>
510    </method>
511  </interface>
512
513  <!--
514      org.qemu.Display1.AudioOutListener:
515
516      This client-side interface must be available on
517      ``/org/qemu/Display1/AudioOutListener`` when registering the peer-to-peer
518      connection with :dbus:meth:`~org.qemu.Display1.Audio.RegisterOutListener`.
519  -->
520  <interface name="org.qemu.Display1.AudioOutListener">
521    <!--
522        Init:
523        @id: the stream ID.
524        @bits: PCM bits per sample.
525        @is_signed: whether the PCM data is signed.
526        @is_float: PCM floating point format.
527        @freq: the PCM frequency in Hz.
528        @nchannels: the number of channels.
529        @bytes_per_frame: the bytes per frame.
530        @bytes_per_second: the bytes per second.
531        @be: whether using big-endian format.
532
533        Initializes a PCM playback stream.
534    -->
535    <method name="Init">
536      <arg name="id" type="t" direction="in"/>
537      <arg name="bits" type="y" direction="in"/>
538      <arg name="is_signed" type="b" direction="in"/>
539      <arg name="is_float" type="b" direction="in"/>
540      <arg name="freq" type="u" direction="in"/>
541      <arg name="nchannels" type="y" direction="in"/>
542      <arg name="bytes_per_frame" type="u" direction="in"/>
543      <arg name="bytes_per_second" type="u" direction="in"/>
544      <arg name="be" type="b" direction="in"/>
545    </method>
546
547    <!--
548        Fini:
549        @id: the stream ID.
550
551        Finish & close a playback stream.
552    -->
553    <method name="Fini">
554      <arg name="id" type="t" direction="in"/>
555    </method>
556
557    <!--
558        SetEnabled:
559        @id: the stream ID.
560
561        Resume or suspend the playback stream.
562    -->
563    <method name="SetEnabled">
564      <arg name="id" type="t" direction="in"/>
565      <arg name="enabled" type="b" direction="in"/>
566    </method>
567
568    <!--
569        SetVolume:
570        @id: the stream ID.
571        @mute: whether the stream is muted.
572        @volume: the volume per-channel.
573
574        Set the stream volume and mute state (volume without unit, 0-255).
575    -->
576    <method name="SetVolume">
577      <arg name="id" type="t" direction="in"/>
578      <arg name="mute" type="b" direction="in"/>
579      <arg name="volume" type="ay" direction="in">
580        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
581      </arg>
582    </method>
583
584    <!--
585        Write:
586        @id: the stream ID.
587        @data: the PCM data.
588
589        PCM stream to play.
590    -->
591    <method name="Write">
592      <arg name="id" type="t" direction="in"/>
593      <arg type="ay" name="data" direction="in">
594        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
595      </arg>
596    </method>
597  </interface>
598
599  <!--
600      org.qemu.Display1.AudioInListener:
601
602      This client-side interface must be available on
603      ``/org/qemu/Display1/AudioInListener`` when registering the peer-to-peer
604      connection with :dbus:meth:`~org.qemu.Display1.Audio.RegisterInListener`.
605  -->
606  <interface name="org.qemu.Display1.AudioInListener">
607    <!--
608        Init:
609        @id: the stream ID.
610        @bits: PCM bits per sample.
611        @is_signed: whether the PCM data is signed.
612        @is_float: PCM floating point format.
613        @freq: the PCM frequency in Hz.
614        @nchannels: the number of channels.
615        @bytes_per_frame: the bytes per frame.
616        @bytes_per_second: the bytes per second.
617        @be: whether using big-endian format.
618
619        Initializes a PCM record stream.
620    -->
621    <method name="Init">
622      <arg name="id" type="t" direction="in"/>
623      <arg name="bits" type="y" direction="in"/>
624      <arg name="is_signed" type="b" direction="in"/>
625      <arg name="is_float" type="b" direction="in"/>
626      <arg name="freq" type="u" direction="in"/>
627      <arg name="nchannels" type="y" direction="in"/>
628      <arg name="bytes_per_frame" type="u" direction="in"/>
629      <arg name="bytes_per_second" type="u" direction="in"/>
630      <arg name="be" type="b" direction="in"/>
631    </method>
632
633    <!--
634        Fini:
635        @id: the stream ID.
636
637        Finish & close a record stream.
638    -->
639    <method name="Fini">
640      <arg name="id" type="t" direction="in"/>
641    </method>
642
643    <!--
644        SetEnabled:
645        @id: the stream ID.
646
647        Resume or suspend the record stream.
648    -->
649    <method name="SetEnabled">
650      <arg name="id" type="t" direction="in"/>
651      <arg name="enabled" type="b" direction="in"/>
652    </method>
653
654    <!--
655        SetVolume:
656        @id: the stream ID.
657        @mute: whether the stream is muted.
658        @volume: the volume per-channel.
659
660        Set the stream volume and mute state (volume without unit, 0-255).
661    -->
662    <method name="SetVolume">
663      <arg name="id" type="t" direction="in"/>
664      <arg name="mute" type="b" direction="in"/>
665      <arg name="volume" type="ay" direction="in">
666        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
667      </arg>
668    </method>
669
670    <!--
671        Read:
672        @id: the stream ID.
673        @size: the amount to read, in bytes.
674        @data: the recorded data (which may be less than requested).
675
676        Read "size" bytes from the record stream.
677    -->
678    <method name="Read">
679      <arg name="id" type="t" direction="in"/>
680      <arg name="size" type="t" direction="in"/>
681      <arg type="ay" name="data" direction="out">
682        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
683      </arg>
684    </method>
685  </interface>
686
687  <!--
688      org.qemu.Display1.Chardev:
689
690      Character devices may be available on ``/org/qemu/Display1/Chardev_$id``.
691
692      They may be used for different kind of streams, which are identified via
693      their FQDN :dbus:prop:`Name`.
694
695      .. _dbus-chardev-fqdn:
696
697      Here are some known reserved kind names (the ``org.qemu`` prefix is
698      reserved by QEMU):
699
700      org.qemu.console.serial.0
701        A serial console stream.
702
703      org.qemu.monitor.hmp.0
704        A QEMU HMP human monitor.
705
706      org.qemu.monitor.qmp.0
707        A QEMU QMP monitor.
708
709      org.qemu.usbredir
710        A usbredir stream.
711  -->
712  <interface name="org.qemu.Display1.Chardev">
713    <!--
714        Register:
715        @stream: a Unix FD to redirect the stream to.
716
717        Register a file-descriptor for the stream handling.
718
719        The current handler, if any, will be replaced.
720    -->
721    <method name="Register">
722      <arg type="h" name="stream" direction="in"/>
723    </method>
724
725    <!--
726        SendBreak:
727
728        Send a break event to the character device.
729    -->
730    <method name="SendBreak"/>
731
732    <!--
733        Name:
734
735        The FQDN name to identify the kind of stream. See :ref:`reserved
736        names<dbus-chardev-fqdn>`.
737    -->
738    <property name="Name" type="s" access="read"/>
739
740    <!--
741        FEOpened:
742
743        Whether the front-end side is opened.
744    -->
745    <property name="FEOpened" type="b" access="read"/>
746
747    <!--
748        Echo:
749
750        Whether the input should be echo'ed (for serial streams).
751    -->
752    <property name="Echo" type="b" access="read"/>
753
754    <!--
755        Owner:
756
757        The D-Bus unique name of the registered handler.
758    -->
759    <property name="Owner" type="s" access="read"/>
760  </interface>
761</node>
762