diff packages/hal/sparc/arch/current/src/hal_intr.c @ 208:e0c0827131d1 ecos

Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
parents
children d2c90368aeef
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+//==========================================================================
+//
+//      hal_intr.c
+//
+//      SPARC Architecture specific interrupt dispatch tables
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    hmt
+// Contributors: hmt
+// Date:         1999-02-20
+// Purpose:      Interrupt handler tables for SPARC.
+//              
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+
+#include <cyg/hal/hal_intr.h>
+#include <cyg/hal/hal_arch.h>
+
+#include <cyg/infra/cyg_ass.h> // for CYG_FAIL() below
+
+// ------------------------------------------------------------------------
+// First level C default interrupt handler.
+
+//static int count = 0;
+
+cyg_uint32 hal_default_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
+{
+    return 0; // 0x1def0000 + vector + (count += 0x0100);
+}
+
+// ------------------------------------------------------------------------
+// First level C exception handler.
+
+externC void __handle_exception (void);
+
+externC HAL_SavedRegisters *_hal_registers;
+
+void cyg_hal_exception_handler(CYG_ADDRWORD vector, CYG_ADDRWORD data,
+                               CYG_ADDRWORD stackpointer )
+{
+#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
+    // Set the pointer to the registers of the current exception
+    // context. At entry the GDB stub will expand the
+    // HAL_SavedRegisters structure into a (bigger) register array.
+    _hal_registers = (HAL_SavedRegisters *)stackpointer;
+
+    __handle_exception();
+
+#elif defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && \
+      defined(CYGPKG_HAL_EXCEPTIONS)
+    // We should decode the vector and pass a more appropriate
+    // value as the second argument. For now we simply pass a
+    // pointer to the saved registers. We should also divert
+    // breakpoint and other debug vectors into the debug stubs.
+
+    cyg_hal_deliver_exception( vector, stackpointer );
+
+#else
+    CYG_FAIL("Exception!!!");
+#endif    
+    return;
+}
+
+// ISR tables
+volatile
+CYG_ADDRESS    hal_interrupt_handlers[CYGNUM_HAL_VSR_COUNT] = {
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,
+    (CYG_ADDRESS)hal_default_isr,  /* 16 of these */
+
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+    (CYG_ADDRESS)cyg_hal_exception_handler,
+
+    (CYG_ADDRESS)cyg_hal_exception_handler, /* 11 of these */
+};
+
+volatile
+CYG_ADDRWORD   hal_interrupt_data[CYGNUM_HAL_VSR_COUNT] = {
+ 0x11da1a00, 0x11da1a01, 0x11da1a02, 0x11da1a03,
+ 0x11da1a04, 0x11da1a05, 0x11da1a06, 0x11da1a07,
+ 0x11da1a08, 0x11da1a09, 0x11da1a0a, 0x11da1a0b,
+ 0x11da1a0c, 0x11da1a0d, 0x11da1a0e, 0x11da1a0f,
+ 0xeeda1a00, 0xeeda1a01, 0xeeda1a02, 0xeeda1a03, 0xeeda1a04,
+ 0xeeda1a05, 0xeeda1a06, 0xeeda1a07, 0xeeda1a08, 0xeeda1a09,
+ 0xeeda1a0A
+};
+
+volatile
+CYG_ADDRESS    hal_interrupt_objects[CYGNUM_HAL_VSR_COUNT] = {
+    0,    0,    0,    0,
+    0,    0,    0,    0,
+    0,    0,    0,    0,
+    0,    0,    0,    0,
+
+    0,    0,    0,    0,    0,
+    0,    0,    0,    0,    0,
+    0,
+};
+
+// EOF hal_intr.c