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Add UHID gamepad support

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Similar to UHID keyboard and mouse, but for gamepads.

Can be enabled with --gamepad=uhid or -G.

It is not enabled by default because not all devices support UHID
(there is a permission error on old Android versions).
This commit is contained in:
Romain Vimont 2024-09-06 23:08:08 +02:00
parent b266fdb229
commit b32406681b
9 changed files with 188 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

18
app/src/cli.c
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@ -373,13 +373,19 @@ static const struct sc_option options[] = {
.longopt_id = OPT_FORWARD_ALL_CLICKS,
.longopt = "forward-all-clicks",
},
{
.shortopt = 'G',
.text = "Same as --gamepad=uhid.",
},
{
.longopt_id = OPT_GAMEPAD,
.longopt = "gamepad",
.argdesc = "mode",
.text = "Select how to send gamepad inputs to the device.\n"
"Possible values are \"disabled\" and \"aoa\".\n"
"Possible values are \"disabled\", \"uhid\" and \"aoa\".\n"
"\"disabled\" does not send gamepad inputs to the device.\n"
"\"uhid\" simulates a physical HID gamepad using the Linux "
"UHID kernel module on the device.\n"
"\"aoa\" simulates a physical gamepad using the AOAv2 "
"protocol. It may only work over USB.\n"
"Also see --keyboard and --mouse.",
@ -2077,6 +2083,11 @@ parse_gamepad(const char *optarg, enum sc_gamepad_input_mode *mode) {
return true;
}
if (!strcmp(optarg, "uhid")) {
*mode = SC_GAMEPAD_INPUT_MODE_UHID;
return true;
}
if (!strcmp(optarg, "aoa")) {
#ifdef HAVE_USB
*mode = SC_GAMEPAD_INPUT_MODE_AOA;
@ -2659,6 +2670,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
case OPT_AUDIO_DUP:
opts->audio_dup = true;
break;
case 'G':
opts->gamepad_input_mode = SC_GAMEPAD_INPUT_MODE_UHID;
break;
case OPT_GAMEPAD:
if (!parse_gamepad(optarg, &opts->gamepad_input_mode)) {
return false;
@ -2800,6 +2814,8 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
if (otg) {
opts->gamepad_input_mode = SC_GAMEPAD_INPUT_MODE_AOA;
} else {
// UHID does not work on all devices (with old Android
// versions), so it cannot be enabled by default
opts->gamepad_input_mode = SC_GAMEPAD_INPUT_MODE_DISABLED;
}
}