From f507a70379d01dc591f238525f151a396bb16e99 Mon Sep 17 00:00:00 2001
From: jSTE0 <98854293+jSTE0@users.noreply.github.com>
Date: Fri, 18 Feb 2022 22:33:17 +0000
Subject: [PATCH] platform: Add miyoo support

Add support for the miyoo platform, another SDL-based platform with a
small cache CPU and its own input mappings.
---
 Makefile                       |  7 ++++++-
 README.md                      |  1 +
 configure                      | 11 +++++++++--
 platform/opendingux/inputmap.c | 18 +++++++++++++++++-
 4 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index ce1938e4..c6174aea 100644
--- a/Makefile
+++ b/Makefile
@@ -49,7 +49,7 @@ endif
 	LINKOUT ?= -o
 endif
 
-ifeq ("$(PLATFORM)",$(filter "$(PLATFORM)","gp2x" "opendingux" "rpi1"))
+ifeq ("$(PLATFORM)",$(filter "$(PLATFORM)","gp2x" "opendingux" "miyoo" "rpi1"))
 # very small caches, avoid optimization options making the binary much bigger
 CFLAGS += -finline-limit=42 -fno-unroll-loops -fno-ipa-cp -ffast-math
 # this gets you about 20% better execution speed on 32bit arm/mips
@@ -117,6 +117,11 @@ use_inputmap ?= 1
 # OpenDingux is a generic platform, really.
 PLATFORM := generic
 endif
+ifeq "$(PLATFORM)" "miyoo"
+OBJS += platform/opendingux/inputmap.o
+use_inputmap ?= 1
+PLATFORM := generic
+endif
 ifeq ("$(PLATFORM)",$(filter "$(PLATFORM)","rpi1" "rpi2"))
 CFLAGS += -DHAVE_GLES -DRASPBERRY
 CFLAGS += -I/opt/vc/include/ -I/opt/vc/include/interface/vcos/pthreads/ -I/opt/vc/include/interface/vmcs_host/linux/
diff --git a/README.md b/README.md
index 3a5b3fe0..154ff510 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ dingux|dingux with ubuntu mips gcc 5.4|CROSS_COMPILE=mipsel-linux-gnu- CFLAGS="-
 retrofw|retrofw|CROSS_COMPILE=mipsel-linux- CFLAGS="-I $TC/include -I $TC/include/SDL -Wno-unused-result" LDFLAGS="--sysroot $TC/mipsel-buildroot-linux-uclibc/sysroot" ./configure --platform=retrofw
 gcw0|gcw0|CROSS_COMPILE=mipsel-gcw0-linux-uclibc- CFLAGS="-I$TC/usr/mipsel-gcw0-linux-uclibc/sysroot/usr/include -I$TC/usr/mipsel-gcw0-linux-uclibc/sysroot/usr/include/SDL" LDFLAGS="--sysroot $TC/usr/mipsel-gcw0-linux-uclibc/sysroot" ./configure --platform=gcw0
 rg350|rg350|CROSS_COMPILE=mipsel-linux- CFLAGS="-I$TC/usr/include -I$TC/usr/include/SDL" LDFLAGS="--sysroot $TC -L$TC/lib" ./configure --platform=rg350
+miyoo|miyoo|CROSS_COMPILE=arm-miyoo-linux-uclibcgnueabi- CFLAGS="-I$TC/arm-miyoo-linux-uclibcgnueabi/sysroot/usr/include -I$TC/arm-miyoo-linux-uclibcgnueabi/sysroot/usr/include/SDL" LDFLAGS="--sysroot $TC/arm-miyoo-linux-uclibcgnueabi/sysroot" ./configure --platform=miyoo
 
 For gp2x, wiz, and caanoo you may need to compile libpng first.
 
diff --git a/configure b/configure
index 4019c2ed..c67b9a0c 100755
--- a/configure
+++ b/configure
@@ -39,7 +39,7 @@ check_define()
 # "" means "autodetect".
 
 # TODO this is annoyingly messy. should have platform and device
-platform_list="generic pandora gp2x wiz caanoo dingux retrofw gcw0 rg350 opendingux rpi1 rpi2 psp"
+platform_list="generic pandora gp2x wiz caanoo dingux retrofw gcw0 rg350 opendingux miyoo rpi1 rpi2 psp"
 platform="generic"
 sound_driver_list="oss alsa sdl"
 sound_drivers=""
@@ -106,6 +106,13 @@ set_platform()
     MFLAGS="-march=mips32r2"
     platform="opendingux"
     ;;
+  miyoo)
+    # Miyoo BittBoy, PocketGO 1, PowKiddy V90/Q90 with Allwinner F1C100s
+    sound_drivers="sdl"
+    CFLAGS="$CFLAGS -D__MIYOO__"
+    MFLAGS="-mcpu=arm926ej-s -marm"
+    platform="miyoo"
+    ;;
   pandora)
     sound_drivers="oss alsa"
     have_libavcodec="yes"
@@ -251,7 +258,7 @@ arm*)
 esac
 
 case "$platform" in
-rpi1 | rpi2 | generic | opendingux)
+rpi1 | rpi2 | generic | opendingux | miyoo)
   need_sdl="yes"
   ;;
 esac
diff --git a/platform/opendingux/inputmap.c b/platform/opendingux/inputmap.c
index 7c8c348f..b8851715 100644
--- a/platform/opendingux/inputmap.c
+++ b/platform/opendingux/inputmap.c
@@ -29,8 +29,13 @@ const struct menu_keymap in_sdl_key_map[] = {
 	{ SDLK_DOWN,	PBTN_DOWN },
 	{ SDLK_LEFT,	PBTN_LEFT },
 	{ SDLK_RIGHT,	PBTN_RIGHT },
+#if defined(__MIYOO__)
+	{ SDLK_LALT,	PBTN_MOK },
+	{ SDLK_LCTRL,	PBTN_MBACK },
+#else
 	{ SDLK_LCTRL,	PBTN_MOK },
 	{ SDLK_LALT,	PBTN_MBACK },
+#endif
 	{ SDLK_SPACE,	PBTN_MA2 },
 	{ SDLK_LSHIFT,	PBTN_MA3 },
 	{ SDLK_TAB,	PBTN_L },
@@ -56,9 +61,14 @@ const char * const _in_sdl_key_names[SDLK_LAST] = {
 	[SDLK_DOWN] = "DOWN",
 	[SDLK_LEFT] = "LEFT",
 	[SDLK_RIGHT] = "RIGHT",
+#if defined(__MIYOO__)
+	[SDLK_LALT] = "A",
+	[SDLK_LCTRL] = "B",
+#else
 	[SDLK_LCTRL] = "A",
 	[SDLK_LALT] = "B",
-#if defined(__GCW0__)
+#endif
+#if defined(__GCW0__) || defined(__MIYOO__)
 	[SDLK_LSHIFT] = "X",
 	[SDLK_SPACE] = "Y",
 #else
@@ -77,6 +87,12 @@ const char * const _in_sdl_key_names[SDLK_LAST] = {
 	[SDLK_PAGEDOWN] = "R2",
 	[SDLK_KP_DIVIDE] = "L3",
 	[SDLK_KP_PERIOD] = "R3",
+#elif defined(__MIYOO__)
+	[SDLK_TAB] = "L1",
+	[SDLK_BACKSPACE] = "R1",
+	[SDLK_RALT] = "L2",
+	[SDLK_RSHIFT] = "R2",
+	[SDLK_RCTRL] = "R",
 #else
 	[SDLK_TAB] = "L",
 	[SDLK_BACKSPACE] = "R",
-- 
2.39.2