Reassign -K and -M to UHID keyboard and mouse

The options were deprecated, but for convenience, reassign them to
aliases for --keyboard=uhid and --mouse=uhid respectively.

Their long version (--hid-keyboard and --hid-mouse) remain deprecated.

app/data/bash-completion/scrcpy

@@ -27,6 +27,7 @@ _scrcpy() {
         --force-adb-forward
         --forward-all-clicks
         -h --help
+        -K
         --keyboard
         --kill-adb-on-close
         --legacy-paste
@@ -37,6 +38,7 @@ _scrcpy() {
         --lock-video-orientation
         --lock-video-orientation=
         -m --max-size=
+        -M
         --max-fps=
         --mouse=
         -n --no-control

app/data/zsh-completion/_scrcpy

@@ -34,6 +34,7 @@ arguments=(
     '--force-adb-forward[Do not attempt to use \"adb reverse\" to connect to the device]'
     '--forward-all-clicks[Forward clicks to device]'
     {-h,--help}'[Print the help]'
+    '-K[Use UHID keyboard (same as --keyboard=uhid)]'
     '--keyboard[Set the keyboard input mode]:mode:(disabled sdk aoa uhid)'
     '--kill-adb-on-close[Kill adb when scrcpy terminates]'
     '--legacy-paste[Inject computer clipboard text as a sequence of key events on Ctrl+v]'
@@ -43,6 +44,7 @@ arguments=(
     '--list-encoders[List video and audio encoders available on the device]'
     '--lock-video-orientation=[Lock video orientation]:orientation:(unlocked initial 0 90 180 270)'
     {-m,--max-size=}'[Limit both the width and height of the video to value]'
+    '-M[Use UHID mouse (same as --mouse=uhid)]'
     '--max-fps=[Limit the frame rate of screen capture]'
     '--mouse[Set the mouse input mode]:mode:(disabled sdk aoa uhid)'
     {-n,--no-control}'[Disable device control \(mirror the device in read only\)]'

app/scrcpy.1

@@ -171,6 +171,10 @@ By default, right-click triggers BACK (or POWER on) and middle-click triggers HO
 .B \-h, \-\-help
 Print this help.
 
+.TP
+.B \-K
+Same as \fB\-\-keyboard=uhid\fR.
+
 .TP
 .BI "\-\-keyboard " mode
 Select how to send keyboard inputs to the device.
@@ -234,6 +238,10 @@ Limit both the width and height of the video to \fIvalue\fR. The other dimension
 
 Default is 0 (unlimited).
 
+.TP
+.B \-M
+Same as \fB\-\-mouse=uhid\fR.
+
 .TP
 .BI "\-\-max\-fps " value
 Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).

app/src/cli.c

@@ -95,6 +95,8 @@ enum {
     OPT_ORIENTATION,
     OPT_KEYBOARD,
     OPT_MOUSE,
+    OPT_HID_KEYBOARD_DEPRECATED,
+    OPT_HID_MOUSE_DEPRECATED,
 };
 
 struct sc_option {
@@ -360,6 +362,10 @@ static const struct sc_option options[] = {
         .longopt = "help",
         .text = "Print this help.",
     },
+    {
+        .shortopt = 'K',
+        .text = "Same as --keyboard=uhid.",
+    },
     {
         .longopt_id = OPT_KEYBOARD,
         .longopt = "keyboard",
@@ -391,7 +397,8 @@ static const struct sc_option options[] = {
     },
     {
         // deprecated
-        .shortopt = 'K',
+        //.shortopt = 'K', // old, reassigned
+        .longopt_id = OPT_HID_KEYBOARD_DEPRECATED,
         .longopt = "hid-keyboard",
     },
     {
@@ -447,9 +454,14 @@ static const struct sc_option options[] = {
     },
     {
         // deprecated
-        .shortopt = 'M',
+        //.shortopt = 'M', // old, reassigned
+        .longopt_id = OPT_HID_MOUSE_DEPRECATED,
         .longopt = "hid-mouse",
     },
+    {
+        .shortopt = 'M',
+        .text = "Same as --mouse=uhid.",
+    },
     {
         .longopt_id = OPT_MAX_FPS,
         .longopt = "max-fps",
@@ -2088,20 +2100,17 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 args->help = true;
                 break;
             case 'K':
-#ifdef HAVE_USB
+                opts->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_UHID;
-                LOGW("-K/--hid-keyboard is deprecated, use --keyboard=aoa "
-                     "instead.");
-                opts->keyboard_input_mode = SC_KEYBOARD_INPUT_MODE_AOA;
                 break;
-#else
-                LOGE("HID over AOA (-K/--hid-keyboard) is disabled.");
-                return false;
-#endif
             case OPT_KEYBOARD:
                 if (!parse_keyboard(optarg, &opts->keyboard_input_mode)) {
                     return false;
                 }
                 break;
+            case OPT_HID_KEYBOARD_DEPRECATED:
+                LOGE("--hid-keyboard has been removed, use --keyboard=aoa or "
+                     "--keyboard=uhid instead.");
+                return false;
             case OPT_MAX_FPS:
                 if (!parse_max_fps(optarg, &opts->max_fps)) {
                     return false;
@@ -2113,19 +2122,17 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                 }
                 break;
             case 'M':
-#ifdef HAVE_USB
+                opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_UHID;
-                LOGW("-M/--hid-mouse is deprecated, use --mouse=aoa instead.");
-                opts->mouse_input_mode = SC_MOUSE_INPUT_MODE_AOA;
                 break;
-#else
-                LOGE("HID over AOA (-M/--hid-mouse) is disabled.");
-                return false;
-#endif
             case OPT_MOUSE:
                 if (!parse_mouse(optarg, &opts->mouse_input_mode)) {
                     return false;
                 }
                 break;
+            case OPT_HID_MOUSE_DEPRECATED:
+                LOGE("--hid-mouse has been removed, use --mouse=aoa or "
+                     "--mouse=uhid instead.");
+                return false;
             case OPT_LOCK_VIDEO_ORIENTATION:
                 if (!parse_lock_video_orientation(optarg,
                         &opts->lock_video_orientation)) {