# HG changeset patch
# Parent c5c98e265bb4cf5c3a9d775e56d6599ca73a4c73
rathaxes: initialize the pci bus in an elegant implicit way

diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.blt
--- a/rathaxes/samples/lkm/lkm.blt	Sat Jan 07 22:45:07 2012 +0100
+++ b/rathaxes/samples/lkm/lkm.blt	Sat Jan 07 23:09:24 2012 +0100
@@ -33,6 +33,7 @@
             static int __attribute__((__section__(".init.text")))  rtx_module_init(void)
             {
                 ${pointcut ::IMPLEMENTATION};
+                ${pointcut LKM::init_bus_hook};
 
                 return 0;
             }
@@ -48,6 +49,7 @@
             static void __attribute__((__section__(".exit.text")))   rtx_module_exit(void)
             {
                 ${pointcut ::IMPLEMENTATION};
+                ${pointcut LKM::deinit_bus_hook};
             }
 
             module_exit(rtx_module_exit);
diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.rti
--- a/rathaxes/samples/lkm/lkm.rti	Sat Jan 07 22:45:07 2012 +0100
+++ b/rathaxes/samples/lkm/lkm.rti	Sat Jan 07 23:09:24 2012 +0100
@@ -12,12 +12,14 @@
 
     required sequence   LKM::init()
     {
-        provided chunk  LKM::includes;
-        provided chunk  LKM::code;
+        provided chunk      LKM::includes;
+        provided chunk      LKM::code;
+        provided pointcut   LKM::init_bus_hook;
     }
 
     required sequence   LKM::exit()
     {
-        provided chunk  LKM::code;
+        provided chunk      LKM::code;
+        provided pointcut   LKM::deinit_bus_hook;
     }
 }
diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.rtx
--- a/rathaxes/samples/lkm/lkm.rtx	Sat Jan 07 22:45:07 2012 +0100
+++ b/rathaxes/samples/lkm/lkm.rtx	Sat Jan 07 23:09:24 2012 +0100
@@ -37,13 +37,13 @@
     LKM::init()
     {
         Log::info("Hello this is LKM");
-        PCI::register();
+        // PCI::register();
     }
 
     LKM::exit()
     {
         Log::info("Good bye this was LKM");
-        PCI::unregister();
+        // PCI::unregister();
     }
 }
 
diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/pci.blt
--- a/rathaxes/samples/lkm/pci.blt	Sat Jan 07 22:45:07 2012 +0100
+++ b/rathaxes/samples/lkm/pci.blt	Sat Jan 07 23:09:24 2012 +0100
@@ -102,7 +102,7 @@
             };
         }
 
-        chunk ::CALL
+        chunk LKM::init_bus_hook()
         {
             /*
              * So how do we use the return value in the parent context?
@@ -116,13 +116,22 @@
                  return error;
             }
         }
+
+        chunk ::CALL()
+        {
+            // no implementation, we just need to instrument the lkm::bus_hook
+        }
     }
 
     template sequence   PCI::unregister()
     {
-        chunk ::CALL
+        chunk   LKM::deinit_bus_hook()
         {
             pci_unregister_driver(&rtx_pci_driver);
         }
+
+        chunk ::CALL
+        {
+        }
     }
 }
diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/pci.rti
--- a/rathaxes/samples/lkm/pci.rti	Sat Jan 07 22:45:07 2012 +0100
+++ b/rathaxes/samples/lkm/pci.rti	Sat Jan 07 23:09:24 2012 +0100
@@ -7,13 +7,20 @@
 
     provided sequence   PCI::register()
     {
+        // it is impossible to provide a "dummy" sequence
+        // which just hook itself. The PCI:register juste
+        // inject its code in the module_init function
+        // in order to load the pci driver.
+        // Everything is done with the configuration.
         provided chunk  ::CALL;
         provided chunk  LKM::data;
+        provided chunk  LKM::init_bus_hook;
     }
 
     provided sequence   PCI::unregister()
     {
         provided chunk  ::CALL;
+        provided chunk  LKM::deinit_bus_hook;
     }
 
     required sequence   PCI::probe(PCI::Device)