qapi: switch x-input-send-event from console to device+head

Use display device qdev id and head number instead of console index to
specify the QemuConsole.  This makes things consistent with input
devices (for input routing) and vnc server configuration, which both use
display and head too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>

qapi-schema.json

@@ -3829,24 +3829,24 @@
 #
 # Send input event(s) to guest.
 #
-# @console: #optional console to send event(s) to.
-#           This parameter can be used to send the input event to
-#           specific input devices in case (a) multiple input devices
-#           of the same kind are added to the virtual machine and (b)
-#           you have configured input routing (see docs/multiseat.txt)
-#           for those input devices.  If input routing is not
-#           configured this parameter has no effect.
-#           If @console is missing, only devices that aren't associated
-#           with a console are admissible.
-#           If @console is specified, it must exist, and both devices
-#           associated with that console and devices not associated with a
-#           console are admissible, but the former take precedence.
-
-#
+# @device: #optional display device to send event(s) to.
+# @head: #optional head to send event(s) to, in case the
+#        display device supports multiple scanouts.
 # @events: List of InputEvent union.
 #
 # Returns: Nothing on success.
 #
+# The @display and @head parameters can be used to send the input
+# event to specific input devices in case (a) multiple input devices
+# of the same kind are added to the virtual machine and (b) you have
+# configured input routing (see docs/multiseat.txt) for those input
+# devices.  The parameters work exactly like the device and head
+# properties of input devices.  If @device is missing, only devices
+# that have no input routing config are admissible.  If @device is
+# specified, both input devices with and without input routing config
+# are admissible, but devices with input routing config take
+# precedence.
+
 # Since: 2.2
 #
 # Note: this command is experimental, and not a stable API.  Things that
@@ -3856,7 +3856,9 @@
 #
 ##
 { 'command': 'x-input-send-event',
-  'data': { '*console':'int', 'events': [ 'InputEvent' ] } }
+  'data': { '*device': 'str',
+            '*head'  : 'int',
+            'events' : [ 'InputEvent' ] } }
 
 ##
 # @NumaOptions

qmp-commands.hx

@@ -4671,8 +4671,9 @@ Send input event to guest.
 
 Arguments:
 
-- "console": console index. (json-int, optional)
-- "events": list of input events.
+- "device": display device (json-string, optional)
+- "head": display head (json-int, optional)
+- "events": list of input events
 
 The consoles are visible in the qom tree, under
 /backend/console[$index]. They have a device link and head property, so
@@ -4685,15 +4686,15 @@ Example (1):
 Press left mouse button.
 
 -> { "execute": "x-input-send-event",
-    "arguments": { "console": 0,
+    "arguments": { "device": "video0",
                    "events": [ { "type": "btn",
-                    "data" : { "down": true, "button": "Left" } } ] } }
+                   "data" : { "down": true, "button": "Left" } } ] } }
 <- { "return": {} }
 
 -> { "execute": "x-input-send-event",
-    "arguments": { "console": 0,
+    "arguments": { "device": "video0",
                    "events": [ { "type": "btn",
-                    "data" : { "down": false, "button": "Left" } } ] } }
+                   "data" : { "down": false, "button": "Left" } } ] } }
 <- { "return": {} }
 
 Example (2):
@@ -4701,7 +4702,7 @@ Example (2):
 Press ctrl-alt-del.
 
 -> { "execute": "x-input-send-event",
-     "arguments": { "console": 0, "events": [
+     "arguments": { "events": [
         { "type": "key", "data" : { "down": true,
           "key": {"type": "qcode", "data": "ctrl" } } },
         { "type": "key", "data" : { "down": true,
@@ -4715,7 +4716,7 @@ Example (3):
 Move mouse pointer to absolute coordinates (20000, 400).
 
 -> { "execute": "x-input-send-event" ,
-  "arguments": { "console": 0, "events": [
+  "arguments": { "events": [
                { "type": "abs", "data" : { "axis": "X", "value" : 20000 } },
                { "type": "abs", "data" : { "axis": "Y", "value" : 400 } } ] } }
 <- { "return": {} }

ui/input.c

@@ -119,17 +119,22 @@ qemu_input_find_handler(uint32_t mask, QemuConsole *con)
     return NULL;
 }
 
-void qmp_x_input_send_event(bool has_console, int64_t console,
+void qmp_x_input_send_event(bool has_device, const char *device,
+                            bool has_head, int64_t head,
                             InputEventList *events, Error **errp)
 {
     InputEventList *e;
     QemuConsole *con;
+    Error *err = NULL;
 
     con = NULL;
-    if (has_console) {
-        con = qemu_console_lookup_by_index(console);
-        if (!con) {
-            error_setg(errp, "console %" PRId64 " not found", console);
+    if (has_device) {
+        if (!has_head) {
+            head = 0;
+        }
+        con = qemu_console_lookup_by_device_name(device, head, &err);
+        if (err) {
+            error_propagate(errp, err);
             return;
         }
     }