erc32 bsp supercedes sis

1 files changed, 164 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/sparc/erc32/startup/spurious.c b/c/src/lib/libbsp/sparc/erc32/startup/spurious.c
new file mode 100644
index 0000000000..fa1a704079
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/erc32/startup/spurious.c
@@ -0,0 +1,164 @@
+/*
+ *  ERC32 Spurious Trap Handler
+ *
+ *  This is just enough of a trap handler to let us know what 
+ *  the likely source of the trap was.
+ *
+ *  Developed as part of the port of RTEMS to the ERC32 implementation 
+ *  of the SPARC by On-Line Applications Research Corporation (OAR) 
+ *  under contract to the European Space Agency (ESA).
+ *
+ *  COPYRIGHT (c) 1995. European Space Agency.
+ *
+ *  This terms of the RTEMS license apply to this file.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+
+#include <string.h>
+
+static const char digits[16] = "0123456789abcdef";
+
+/*
+ *  bsp_spurious_handler
+ *
+ *  Print a message on the debug console and then die
+ */
+
+rtems_isr bsp_spurious_handler(
+   rtems_vector_number trap
+)
+{
+  char line[ 80 ];
+  int length;
+  rtems_unsigned32 real_trap;
+
+  DEBUG_puts( "Spurious Trap" );
+
+  real_trap = SPARC_REAL_TRAP_NUMBER(trap);
+
+  switch (real_trap) {
+
+    /*
+     *  First the ones defined by the basic architecture
+     */
+
+    case 0x00: 
+      DEBUG_puts( "reset" );
+      break;
+    case 0x01: 
+      DEBUG_puts( "instruction access exception" );
+      break;
+    case 0x02: 
+      DEBUG_puts( "illegal instruction" );
+      break;
+    case 0x03: 
+      DEBUG_puts( "privileged instruction" );
+      break;
+    case 0x04: 
+      DEBUG_puts( "fp disabled" );
+      break;
+    case 0x07: 
+      DEBUG_puts( "memory address not aligned" );
+      break;
+    case 0x08: 
+      DEBUG_puts( "fp exception" );
+      break;
+    case 0x09: 
+      DEBUG_puts( "data access exception" );
+      break;
+    case 0x0A: 
+      DEBUG_puts( "tag overflow" );
+      break;
+
+    /*
+     *  Then the ones defined by the ERC32 in particular
+     */
+
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_MASKED_ERRORS ):
+      DEBUG_puts( "ERC32_INTERRUPT_MASKED_ERRORS" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_1 ):
+      DEBUG_puts( "ERC32_INTERRUPT_EXTERNAL_1" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_2 ):
+      DEBUG_puts( "ERC32_INTERRUPT_EXTERNAL_2" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_A_RX_TX ):
+      DEBUG_puts( "ERC32_INTERRUPT_UART_A_RX_TX" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_B_RX_TX ):
+      DEBUG_puts( "ERC32_INTERRUPT_UART_A_RX_TX" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR ):
+      DEBUG_puts( "ERC32_INTERRUPT_CORRECTABLE_MEMORY_ERROR" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_UART_ERROR ):
+      DEBUG_puts( "ERC32_INTERRUPT_UART_ERROR" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_ACCESS_ERROR ):
+      DEBUG_puts( "ERC32_INTERRUPT_DMA_ACCESS_ERROR" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_DMA_TIMEOUT ):
+      DEBUG_puts( "ERC32_INTERRUPT_DMA_TIMEOUT" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_3 ):
+      DEBUG_puts( "ERC32_INTERRUPT_EXTERNAL_3" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_4 ):
+      DEBUG_puts( "ERC32_INTERRUPT_EXTERNAL_4" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER ):
+      DEBUG_puts( "ERC32_INTERRUPT_GENERAL_PURPOSE_TIMER" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_REAL_TIME_CLOCK ):
+      DEBUG_puts( "ERC32_INTERRUPT_REAL_TIME_CLOCK" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_EXTERNAL_5 ):
+      DEBUG_puts( "ERC32_INTERRUPT_EXTERNAL_5" );
+      break;
+    case ERC32_TRAP_TYPE( ERC32_INTERRUPT_WATCHDOG_TIMEOUT ):
+      DEBUG_puts( "ERC32_INTERRUPT_WATCHDOG_TIMEOUT" );
+      break;
+
+    default:
+      strcpy( line, "Number 0x  " );
+      length = strlen ( line );
+      line[ length - 2 ] = digits[ real_trap >> 4 ];
+      line[ length - 1 ] = digits[ real_trap & 0xf ];
+      DEBUG_puts( line ); 
+      break;
+  }
+
+  /*
+   *  What else can we do but stop ...
+   */
+
+  asm volatile( "ta 0x0" );
+}
+
+/*
+ *  bsp_spurious_initialize
+ *
+ *  Install the spurious handler for most traps.
+ */
+
+void bsp_spurious_initialize()
+{
+  rtems_unsigned32 trap;
+
+  for ( trap=0 ; trap<256 ; trap++ ) {
+
+    /*
+     *  Skip window overflow, underflow, and flush as well as software
+     *  trap 0 which we will use as a shutdown.
+     */
+
+    if ( trap == 5 || trap == 6 || trap == 0x83 || trap == 0x80)
+      continue;
+
+    set_vector( bsp_spurious_handler, SPARC_SYNCHRONOUS_TRAP( trap ), 1 );
+  }
+}