Add stubs for AVR32 IRQ controls

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2988 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 179 insertions, 8 deletions

diff --git a/nuttx/arch/avr/src/at91uc3/Make.defs b/nuttx/arch/avr/src/at91uc3/Make.defs
index 10b5cc8f8..8d30b4571 100755
--- a/nuttx/arch/avr/src/at91uc3/Make.defs
+++ b/nuttx/arch/avr/src/at91uc3/Make.defs
@@ -40,18 +40,19 @@ HEAD_ASRC	= up_nommuhead.S
 # Common AVR/AVR32 files
 
 CMN_ASRCS	= 
-CMN_CSRCS	= up_assert.c up_blocktask.c up_copystate.c up_createstack.c \
-		  up_mdelay.c up_udelay.c up_exit.c up_idle.c up_initialize.c \
-		  up_initialstate.c up_interruptcontext.c up_modifyreg8.c \
-		  up_modifyreg16.c up_modifyreg32.c up_releasepending.c \
-		  up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \
-		  up_sigdeliver.c up_unblocktask.c up_usestack.c up_doirq.c
+CMN_CSRCS	= up_assert.c up_allocateheap.c up_blocktask.c up_copystate.c \
+		  up_createstack.c up_mdelay.c up_udelay.c up_exit.c up_idle.c \
+		  up_initialize.c up_initialstate.c up_interruptcontext.c \
+		  up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c \
+		  up_releasepending.c up_releasestack.c up_reprioritizertr.c \
+		  up_schedulesigaction.c up_sigdeliver.c up_unblocktask.c \
+                  up_usestack.c up_doirq.c
 
 # Required AT91UC3 files
 
 CHIP_ASRCS	=
-CHIP_CSRCS	= at91uc3_clkinit.c at91uc3_lowconsole.c at91uc3_lowinit.c \
-		  at91uc3_serial.c
+CHIP_CSRCS	= at91uc3_clkinit.c at91uc3_irq.c at91uc3_lowconsole.c \
+		  at91uc3_lowinit.c at91uc3_serial.c
 
 # Configuration-dependent AT91UC3 files
 
diff --git a/nuttx/arch/avr/src/at91uc3/at91uc3_irq.c b/nuttx/arch/avr/src/at91uc3/at91uc3_irq.c
new file mode 100644
index 000000000..77e7b7828
--- /dev/null
+++ b/nuttx/arch/avr/src/at91uc3/at91uc3_irq.c
@@ -0,0 +1,170 @@
+/****************************************************************************
+ * arch/avr/src/at91uc3_/at91uc3_irq.c
+ * arch/avr/src/chip/at91uc3_irq.c
+ *
+ *   Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/irq.h>
+#include <nuttx/arch.h>
+#include <arch/irq.h>
+
+#include "up_arch.h"
+#include "os_internal.h"
+#include "up_internal.h"
+#include "at91uc3_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+uint32_t *current_regs;
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_irqinitialize
+ ****************************************************************************/
+
+void up_irqinitialize(void)
+{
+  /* Disable all interrupts */
+#warning "Missing logic"
+
+  /* The standard location for the vector table is at the beginning of FLASH
+   * at address 0x0800:0000.  If we are using the STMicro DFU bootloader, then
+   * the vector table will be offset to a different location in FLASH and we
+   * will need to set the EVBA vector location to this alternative location.
+   */
+#warning "Missing logic"
+
+  /* Set all interrupts (and exceptions) to the default priority */
+#warning "Missing logic"
+
+  /* currents_regs is non-NULL only while processing an interrupt */
+
+  current_regs = NULL;
+
+  /* Attach the exception handlers */
+
+#ifdef CONFIG_DEBUG
+#warning "Missing logic"
+#endif
+
+  /* And finally, enable interrupts */
+
+#ifndef CONFIG_SUPPRESS_INTERRUPTS
+  irqrestore(0);
+#endif
+}
+
+/****************************************************************************
+ * Name: up_disable_irq
+ *
+ * Description:
+ *   Disable the IRQ specified by 'irq'
+ *
+ ****************************************************************************/
+
+void up_disable_irq(int irq)
+{
+#warning "Missing logic"
+}
+
+/****************************************************************************
+ * Name: up_enable_irq
+ *
+ * Description:
+ *   Enable the IRQ specified by 'irq'
+ *
+ ****************************************************************************/
+
+void up_enable_irq(int irq)
+{
+#warning "Missing logic"
+}
+
+/****************************************************************************
+ * Name: up_maskack_irq
+ *
+ * Description:
+ *   Mask the IRQ and acknowledge it
+ *
+ ****************************************************************************/
+
+void up_maskack_irq(int irq)
+{
+  up_disable_irq(irq);
+}
+
+/****************************************************************************
+ * Name: up_prioritize_irq
+ *
+ * Description:
+ *   Set the priority of an IRQ.
+ *
+ *   Since this API is not supported on all architectures, it should be
+ *   avoided in common implementations where possible.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_IRQPRIO
+int up_prioritize_irq(int irq, int priority)
+{
+#warning "Missing logic"
+  return -ENOSYS;
+}
+#endif