New port of RTEMS to TI C3x and C4x.

4 files changed, 220 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/c4x/shared/Makefile.am b/c/src/lib/libbsp/c4x/shared/Makefile.am
new file mode 100644
index 0000000000..6593a82031
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/shared/Makefile.am
@@ -0,0 +1,11 @@
+## 
+## $Id$
+## 
+
+AUTOMAKE_OPTIONS = foreign 1.4
+
+C_FILES = bspspuriousinit.c c3xspurious.c c4xspurious.c
+
+EXTRA_DIST = bspspuriousinit.c c3xspurious.c c4xspurious.c
+
+include $(top_srcdir)/../../../../../automake/local.am
diff --git a/c/src/lib/libbsp/c4x/shared/bspspuriousinit.c b/c/src/lib/libbsp/c4x/shared/bspspuriousinit.c
new file mode 100644
index 0000000000..9573b6bfcc
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/shared/bspspuriousinit.c
@@ -0,0 +1,45 @@
+/*
+ *  CXX Spurious Trap Handler Install Routine
+ *
+ *  This is just enough of a trap handler to let us know what 
+ *  the likely source of the trap was.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <bspIo.h>
+#include <simio.h>
+
+/*
+ *  bsp_spurious_initialize
+ *
+ *  Install the spurious handler for most vectors. 
+ */
+
+rtems_isr bsp_spurious_handler(
+   rtems_vector_number  vector,
+   CPU_Interrupt_frame *isf
+);
+
+void bsp_spurious_initialize()
+{
+  rtems_unsigned32 vector;
+
+  for ( vector=0 ; vector<64 ; vector++ ) {
+
+    /*
+     *  Skip any vectors that might be generally used for traps.
+     */
+
+    set_vector( bsp_spurious_handler, vector, 1 );
+  }
+
+}
diff --git a/c/src/lib/libbsp/c4x/shared/c3xspurious.c b/c/src/lib/libbsp/c4x/shared/c3xspurious.c
new file mode 100644
index 0000000000..fb14a76d4e
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/shared/c3xspurious.c
@@ -0,0 +1,85 @@
+/*
+ *  C3X Spurious Trap Handler
+ *
+ *  This is just enough of a trap handler to let us know what 
+ *  the likely source of the trap was.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <bspIo.h>
+
+/*
+ *  bsp_spurious_handler
+ *
+ *  Print a message on the debug console and then die
+ */
+
+void bsp_spurious_handler_assistant(
+  rtems_vector_number,
+  CPU_Interrupt_frame *
+);
+
+#if defined(_C3x)
+rtems_isr bsp_spurious_handler(
+   rtems_vector_number  vector,
+   CPU_Interrupt_frame *isf
+)
+{
+  char *s;
+
+  printk( "Unexpected interrupt (0x%x)\n", vector );
+  printk( "It looks like we got the interrupt at 0x%x\n", isf->interrupted );
+
+  /*
+   *  Can we print a name?
+   */
+
+  s = 0;
+  if ( vector <= 0x1f ) {
+    switch ( vector ) {
+#if defined(_C30) || defined(_C31)
+      case 0:     s = "RESET";    break;
+#endif
+      case 1:     s = "INT0";     break;
+      case 2:     s = "INT1";     break;
+      case 3:     s = "INT2";     break;
+      case 4:     s = "INT3";     break;
+      case 5:     s = "XINT0";    break;
+      case 6:     s = "RINT0";    break;
+#if defined(_C30) || defined(_C31)
+      case 7:     s = "XINT1";    break;
+      case 8:     s = "RINT1";    break;
+#endif
+      case 9:     s = "TINT0";    break;
+      case 0x0a:  s = "TINT1";    break;
+      case 0x0b:  s = "DINT0";    break;
+#if defined(_C32)
+      case 0x0c:  s = "DINT1";    break;
+#endif
+      default:    s = "Reserved"; break;
+    }
+    printk( "Looks like it was an %s\n", s );
+  } else {
+    printk( "Looks like it was a TRAP%d\n", vector - 0x20 );
+#if defined(_C30) || defined(_C31)
+    if ( vector > 0x3B )
+      printk( "But TRAP27 - TRAP31 are reserved\n" );
+#endif
+  }
+
+  /*
+   *  Now call the BSP specific routine
+   */
+
+  bsp_spurious_handler_assistant( vector, isf );
+}
+#endif
diff --git a/c/src/lib/libbsp/c4x/shared/c4xspurious.c b/c/src/lib/libbsp/c4x/shared/c4xspurious.c
new file mode 100644
index 0000000000..02320af7ea
--- /dev/null
+++ b/c/src/lib/libbsp/c4x/shared/c4xspurious.c
@@ -0,0 +1,79 @@
+/*
+ *  C4X Spurious Trap Handler
+ *
+ *  This is just enough of a trap handler to let us know what 
+ *  the likely source of the trap was.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <bspIo.h>
+
+/*
+ *  bsp_spurious_handler
+ *
+ *  Print a message on the debug console and then die
+ */
+
+void bsp_spurious_handler_assistant(
+  rtems_vector_number,
+  CPU_Interrupt_frame *
+);
+
+#if defined(_C4x)
+rtems_isr bsp_spurious_handler(
+   rtems_vector_number  vector,
+   CPU_Interrupt_frame *isf
+)
+{
+  char *s;
+
+  printk( "Unexpected interrupt (0x%x)\n", vector );
+  printk( "It looks like we got the interrupt at 0x%x\n", isf->interrupted );
+
+  /*
+   *  Can we print a name?
+   */
+
+  printk( "Looks like it was a " );
+  if ( vector >= 0x0d && vector <= 0x24 ) {
+    switch ( vector & 0x3 ) {
+      case 1: s = "ICFULL"; break;
+      case 2: s = "ICRDY"; break;
+      case 3: s = "OCRDY"; break;
+      case 0: s = "OCEMPTY"; break;
+    }
+    printk( "%s%d\n", s, (vector - 0x0d) / 4 );
+  } else if ( vector >= 0x25 && vector <= 0x2a ) {
+    printk( "DMA INT%d\n", (vector - 0x25) );
+  } else /* if ( vector <= 0x0c || vector >= 0x2b ) */ {
+    switch ( vector ) {
+      case 0:     s = "RESET";     break;
+      case 1:     s = "NMI";       break;
+      case 2:     s = "TINT0";     break;
+      case 3:     s = "IIOF0";     break;
+      case 4:     s = "IIOF1";     break;
+      case 5:     s = "IIOF2";     break;
+      case 6:     s = "IIOF3";     break;
+      case 0x2b:  s = "TINT1";     break;
+      case 0x3f:  s = "Reserved";  break;
+      default:    s = "Unused";    break;
+    }
+    printk( "%s\n", s );
+  }
+
+  /*
+   *  Now call the BSP specific routine
+   */
+
+  bsp_spurious_handler_assistant( vector, isf );
+}
+#endif