From 63bdbdbb191d236c6c45917cd61dcaac74e649be Mon Sep 17 00:00:00 2001
From: David Rosca <nowrep@gmail.com>
Date: Thu, 28 Sep 2017 21:19:40 +0200
Subject: [PATCH] Read keymap number from ux0:ps4linkcontrols.txt file

---
 README.md |  4 ++++
 main.c    | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/README.md b/README.md
index 07baa3f..4433552 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 taiHEN plugin that allows to force preferred Remote Play button configuration
 
+### Configuration
+
+By default it sets **keymap 0** - everything on back touchpad. Changing the keymap can be done
+by creating `ux0:ps4linkcontrols.txt` file and writing the keymap number (0-7) there.
 
 ### Installation
 
diff --git a/main.c b/main.c
index c75bd28..49dbf68 100644
--- a/main.c
+++ b/main.c
@@ -24,6 +24,7 @@
 
 #include <psp2/kernel/modulemgr.h>
 #include <psp2/kernel/clib.h>
+#include <psp2/io/fcntl.h>
 #include <taihen.h>
 
 static SceUID g_hooks[3];
@@ -58,6 +59,19 @@ static int rpjob_constructor_patched(struct RPJob *a1, int a2, int a3)
     return out;
 }
 
+static void load_config()
+{
+    SceUID fd = sceIoOpen("ux0:ps4linkcontrols.txt", SCE_O_RDONLY, 0);
+    if (fd >= 0) {
+        char value = 0;
+        sceIoRead(fd, &value, sizeof(value));
+        if (value >= '0' && value <= '7') {
+            keymap_number = value - '0';
+        }
+        sceIoClose(fd);
+    }
+}
+
 void _start() __attribute__ ((weak, alias ("module_start")));
 int module_start(SceSize argc, const void *args)
 {
@@ -92,6 +106,10 @@ int module_start(SceSize argc, const void *args)
                                        1,       // thumb
                                        rpjob_constructor_patched);
 
+    load_config();
+
+    LOG("Using keymap %d", keymap_number);
+
     return SCE_KERNEL_START_SUCCESS;
 }