From 095e4e680c931f45462429490f33ba0d319c8ee9 Mon Sep 17 00:00:00 2001
From: Danil Zagoskin <z@gosk.in>
Date: Sun, 24 Nov 2024 13:21:15 +0000
Subject: [PATCH] add retrorun for rockchip

---
 .../emulators/libretro/retrorun/package.mk    | 20 ++++++
 .../patches/001-fix-joystick-discovery.patch  | 62 +++++++++++++++++++
 packages/virtual/emulators/package.mk         |  4 ++
 3 files changed, 86 insertions(+)
 create mode 100644 packages/emulators/libretro/retrorun/package.mk
 create mode 100644 packages/emulators/libretro/retrorun/patches/001-fix-joystick-discovery.patch

diff --git a/packages/emulators/libretro/retrorun/package.mk b/packages/emulators/libretro/retrorun/package.mk
new file mode 100644
index 000000000..143b0f84d
--- /dev/null
+++ b/packages/emulators/libretro/retrorun/package.mk
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2021-2024 Shanti Gilbert (https://github.com/shantigilbert)
+# Copyright (C) 2024 ROCKNIX (https://github.com/ROCKNIX)
+
+PKG_NAME="retrorun"
+PKG_VERSION="95ac0bf3a921beefee8b3bbf2faf89eef18f9b3a"
+PKG_LICENSE="GPLv2"
+PKG_SITE="https://github.com/navy1978/retrorun"
+PKG_URL="${PKG_SITE}/archive/${PKG_VERSION}.zip"
+PKG_DEPENDS_TARGET="toolchain librga libdrm"
+PKG_TOOLCHAIN="make"
+
+pre_configure_target() {
+	PKG_MAKE_OPTS_TARGET=" config=release ARCH="
+}
+
+makeinstall_target() {
+	mkdir -p $INSTALL/usr/bin
+	cp retrorun $INSTALL/usr/bin
+}
diff --git a/packages/emulators/libretro/retrorun/patches/001-fix-joystick-discovery.patch b/packages/emulators/libretro/retrorun/patches/001-fix-joystick-discovery.patch
new file mode 100644
index 000000000..fa150dadb
--- /dev/null
+++ b/packages/emulators/libretro/retrorun/patches/001-fix-joystick-discovery.patch
@@ -0,0 +1,62 @@
+--- retrorun-95ac0bf3a921beefee8b3bbf2faf89eef18f9b3a/src/go2/input.cpp.orig	2024-04-11 22:22:16.000000000 +0000
++++ retrorun-95ac0bf3a921beefee8b3bbf2faf89eef18f9b3a/src/go2/input.cpp	2024-11-25 20:43:30.141283197 +0000
+@@ -34,16 +34,15 @@
+ #include <dirent.h>
+ #include <stdbool.h>
+ #include <pthread.h>
++#include <glob.h>
+ 
+-#include <libevdev-1.0/libevdev/libevdev.h>
++#include <libevdev/libevdev.h>
+ #include <linux/limits.h>
+ 
+ #define BATTERY_BUFFER_SIZE (128)
+ #define BRIGHTNESS_BUFFER_SIZE (128)
+ // joypad
+-static const char *EVDEV_NAME = "/dev/input/by-path/platform-odroidgo2-joypad-event-joystick";
+-static const char *EVDEV_NAME_2 = "/dev/input/by-path/platform-odroidgo3-joypad-event-joystick";
+-static const char* EVDEV_NAME_3 = "/dev/input/by-path/platform-singleadc-joypad-event-joystick";
++static const char *EVDEV_WILDCARD = "/dev/input/by-path/platform-*-joypad-event-joystick";
+ // battery
+ static const char *BATTERY_STATUS_NAME = "/sys/class/power_supply/battery/status";
+ static const char *BATTERY_CAPACITY_NAME = "/sys/class/power_supply/battery/capacity";
+@@ -431,6 +430,7 @@
+ {
+ 
+     int rc = 1;
++    glob_t globbuf;
+ 
+     go2_input_t *result = (go2_input_t *)malloc(sizeof(*result));
+     if (!result)
+@@ -443,18 +443,12 @@
+ 
+     result->device = device;
+ 
+-    result->fd = open(EVDEV_NAME, O_RDONLY);
+-    if (result->fd < 0)
+-    {
+-        if (isRG503()){
+-            result->fd = open(EVDEV_NAME_3, O_RDONLY);
+-        }else{
+-            result->fd = open(EVDEV_NAME_2, O_RDONLY);
+-        }
+-        if (result->fd < 0)
+-        {
+-            printf("Joystick: No gamepad found.\n");
+-        }
++    rc = glob(EVDEV_WILDCARD, 0, NULL, &globbuf);
++    if (rc != 0) {
++        printf("Joystick: Failed to find device %s %d\n", EVDEV_WILDCARD, rc);
++        result->fd = -1;
++    } else {
++        result->fd = open(*globbuf.gl_pathv, O_RDONLY);
+     }
+ 
+     if (result->fd > -1)
+@@ -663,4 +657,4 @@
+ go2_thumb_t go2_input_state_thumbstick_get(go2_input_state_t *state, go2_input_thumbstick_t thumbstick)
+ {
+     return state->thumbs[thumbstick];
+-}
+\ No newline at end of file
++}
diff --git a/packages/virtual/emulators/package.mk b/packages/virtual/emulators/package.mk
index 9a87a2262..b2ddd37e8 100644
--- a/packages/virtual/emulators/package.mk
+++ b/packages/virtual/emulators/package.mk
@@ -81,6 +81,10 @@ case "${DEVICE}" in
   ;;
 esac
 
+if [ "${PROJECT}" = "Rockchip" ]; then
+  PKG_DEPENDS_TARGET+=" retrorun"
+fi
+
 PKG_DEPENDS_TARGET+=" ${PKG_EMUS} ${EMUS_32BIT} ${PKG_RETROARCH} ${LIBRETRO_CORES}"
 
 install_script() {