From f850e64037cc6ba703a8a58b59e86378743b164e Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 19 Jun 2017 13:22:34 +0200
Subject: [PATCH] add volume down and volume up keys

---
 input/input_keymaps.c              | 5 +++++
 libretro-common/include/libretro.h | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/input/input_keymaps.c b/input/input_keymaps.c
index ddd900a45f..313a98a9a8 100644
--- a/input/input_keymaps.c
+++ b/input/input_keymaps.c
@@ -189,6 +189,8 @@ const struct input_key_map input_config_key_map[] = {
    { "subtract", RETROK_KP_MINUS },
    { "kp_plus", RETROK_KP_PLUS },
    { "kp_minus", RETROK_KP_MINUS },
+   { "volume-", RETROK_VOLUMEDOWN },
+   { "volume+", RETROK_VOLUMEUP },
    { "f1", RETROK_F1 },
    { "f2", RETROK_F2 },
    { "f3", RETROK_F3 },
@@ -1087,6 +1089,9 @@ const struct rarch_key_map rarch_key_map_linux[] = {
    { KEY_EURO, RETROK_EURO },
 #endif
    { KEY_UNDO, RETROK_UNDO },
+   { KEY_VOLUMEDOWN, RETROK_VOLUMEDOWN },
+   { KEY_VOLUMEUP, RETROK_VOLUMEUP },
+
    { 0, RETROK_UNKNOWN },
 };
 #endif
diff --git a/libretro-common/include/libretro.h b/libretro-common/include/libretro.h
index b100865c5a..d486ef2265 100644
--- a/libretro-common/include/libretro.h
+++ b/libretro-common/include/libretro.h
@@ -422,6 +422,9 @@ enum retro_key
    RETROK_EURO           = 321,
    RETROK_UNDO           = 322,
 
+   RETROK_VOLUMEDOWN     = 323,
+   RETROK_VOLUMEUP       = 324,
+
    RETROK_LAST,
 
    RETROK_DUMMY          = INT_MAX /* Ensure sizeof(enum) == sizeof(int) */