add a save/restore procedure of BSC/CPG parameters at start

include/gint/clock.h

@@ -65,6 +65,8 @@ void cpg_compute_freq(void);
    gint. These are always the settings from Ftune/Ptune, which are the most
    widely tested and gint treats as the standard. */
 enum {
+	/* Something went wrong during the overclocking process*/
+	CLOCK_ERROR = 99,
 	/* Combinations of hardware settings that are none of Ftune's levels */
 	CLOCK_SPEED_UNKNOWN = 0,
 
@@ -111,6 +113,10 @@ enum {
    correspond to any of Ftune's settings, CLOCK_SPEED_UNKNOWN is returned. */
 int clock_get_speed(void);
 
+void clock_save_state(void);
+
+void clock_restore_state(void);
+
 /* clock_set_speed(): Set the current clock speed
 
    This function sets the clock speed to the desired level. This is "the

include/gint/mpu/scif.h

@@ -99,7 +99,7 @@ typedef volatile struct
 
 } GPACKED(4) sh7305_scif_t;
 
-#define SH7305_SCIF (*((sh7305_scif_t *)0x0xa4410000))
+#define SH7305_SCIF (*((sh7305_scif_t *)0xa4410000))
 
 
 typedef volatile struct
@@ -200,7 +200,7 @@ typedef volatile struct
     uint8_t SCFRDR; // Serial Receive Data FIFO (64 Bytes-long)
 } GPACKED(4) sh7705_scif_t;
 
-#define SH7705_SCIF (*((sh7705_scif_t *)0x0xa4410000))
+#define SH7705_SCIF (*((sh7705_scif_t *)0xa4410000))
 
 
 #ifdef __cplusplus

src/cpg/.vscode/c_cpp_properties.json

@@ -0,0 +1,18 @@
+{
+  "configurations": [
+    {
+      "name": "linux-gcc-x64",
+      "includePath": [
+        "${workspaceFolder}/**"
+      ],
+      "compilerPath": "/usr/bin/gcc",
+      "cStandard": "${default}",
+      "cppStandard": "${default}",
+      "intelliSenseMode": "linux-gcc-x64",
+      "compilerArgs": [
+        ""
+      ]
+    }
+  ],
+  "version": 4
+}

src/cpg/.vscode/launch.json

@@ -0,0 +1,24 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "C/C++ Runner: Debug Session",
+      "type": "cppdbg",
+      "request": "launch",
+      "args": [],
+      "stopAtEntry": false,
+      "externalConsole": false,
+      "cwd": "/home/sylvain/.local/share/giteapc/Slyvtt/gint/src/cpg",
+      "program": "/home/sylvain/.local/share/giteapc/Slyvtt/gint/src/cpg/build/Debug/outDebug",
+      "MIMode": "gdb",
+      "miDebuggerPath": "gdb",
+      "setupCommands": [
+        {
+          "description": "Enable pretty-printing for gdb",
+          "text": "-enable-pretty-printing",
+          "ignoreFailures": true
+        }
+      ]
+    }
+  ]
+}

src/cpg/.vscode/settings.json

@@ -0,0 +1,36 @@
+{
+  "C_Cpp_Runner.cCompilerPath": "gcc",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
+  "C_Cpp_Runner.debuggerPath": "gdb",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "",
+  "C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/VR_NR/Community/VC/Auxiliary/Build/vcvarsall.bat",
+  "C_Cpp_Runner.useMsvc": false,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wconversion",
+    "-Wnull-dereference",
+    "-Wsign-conversion"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": [
+    "*",
+    "**/*"
+  ],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ]
+}

src/cpg/overclock.c

@@ -59,6 +59,11 @@
 #define SH3_DIV_4 3 //0b0011	// 1/4
 
 
+
+static struct cpg_overclock_setting save_parameters_at_start = {0};
+static bool is_initial_state_saved = false;
+
+
 void cpg_get_overclock_setting(struct cpg_overclock_setting *s)
 {
     if(isSH3())
@@ -139,6 +144,19 @@ void cpg_set_overclock_setting(struct cpg_overclock_setting const *s)
     return;
 }
 
+void clock_save_state(void)
+{
+  cpg_get_overclock_setting( &save_parameters_at_start );
+  is_initial_state_saved = true;
+}
+
+void clock_restore_state(void)
+{
+  if(is_initial_state_saved==true)
+    cpg_set_overclock_setting( &save_parameters_at_start );
+}
+
+
 /*settings for the fxcg50 / G90+E*/
 static struct cpg_overclock_setting settings_fxcg50[5] = {
     /* CLOCK_SPEED_F1 */
@@ -453,7 +471,7 @@ int clock_get_speed(void)
 {
   struct cpg_overclock_setting *settings = get_settings();
   if(!settings)
-    return CLOCK_SPEED_UNKNOWN;
+    return CLOCK_ERROR;
 
   if(isSH3())
   {
@@ -492,6 +510,7 @@ int clock_get_speed(void)
     }
   }
 
+  clock_save_state();
   return CLOCK_SPEED_UNKNOWN;
 }