No up_en/disable_irq's

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3022 42af7a65-404d-4744-a932-0658087f49c3

arch/avr/src/at91uc3/at91uc3_irq.c

@@ -178,9 +178,6 @@ void up_irqinitialize(void)
 {
   int group;
 
-  /* Disable all interrupts */
-#warning "Missing logic"
-
   /* Initialize the table that provides the value of the IPR register to
    * use to assign a group to different interrupt priorities.
    */
@@ -218,45 +215,6 @@ void up_irqinitialize(void)
 #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
  *

arch/avr/src/at91uc3/at91uc3_lowinit.c

@@ -102,7 +102,6 @@ void up_lowinit(void)
   /* Perform board-level initialization */
 
   up_boardinitialize();
-
 }
 
 

arch/avr/src/at91uc3/at91uc3_serial.c

@@ -403,20 +403,10 @@ static void up_shutdown(struct uart_dev_s *dev)
 static int up_attach(struct uart_dev_s *dev)
 {
   struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  int ret;
 
-  /* Attach and enable the IRQ */
+  /* Attach the IRQ */
 
-  ret = irq_attach(priv->irq, up_interrupt);
+  return irq_attach(priv->irq, up_interrupt);
-  if (ret == OK)
-    {
-       /* Enable the interrupt (RX and TX interrupts are still disabled
-        * in the USART
-        */
-
-       up_enable_irq(priv->irq);
-    }
-  return ret;
 }
 
 /****************************************************************************
@@ -432,7 +422,7 @@ static int up_attach(struct uart_dev_s *dev)
 static void up_detach(struct uart_dev_s *dev)
 {
   struct up_dev_s *priv = (struct up_dev_s*)dev->priv;
-  up_disable_irq(priv->irq);
+  up_serialout(priv, AVR32_USART_IDR_OFFSET, 0xffffffff);
   irq_detach(priv->irq);
 }
 

arch/avr/src/avr32/up_doirq.c

@@ -89,10 +89,6 @@ uint32_t *up_doirq(int irq, uint32_t *regs)
   DEBUGASSERT(current_regs == NULL);
   current_regs = regs;
 
-  /* Mask and acknowledge the interrupt */
-
-  up_maskack_irq(irq);
-
   /* Deliver the IRQ */
 
   irq_dispatch(irq, regs);
@@ -108,10 +104,6 @@ uint32_t *up_doirq(int irq, uint32_t *regs)
   /* Indicate that we are no long in an interrupt handler */
 
   current_regs = NULL;
-
-  /* Unmask the last interrupt (global interrupts are still disabled) */
-
-  up_enable_irq(irq);
 #endif
   up_ledoff(LED_INIRQ);
   return regs;

arch/avr/src/avr32/up_nommuhead.S

@@ -134,12 +134,14 @@ __start:
 
 	/* Then jump to OS entry (will not return) */
 
-	rjmp		os_start
+	lddpc		pc, .Los_start
 
 .Lstackbase:
 	.word	_ebss+CONFIG_IDLETHREAD_STACKSIZE-4
 .Lvectortab:
     .word   vectortab
+.Los_start:
+    .word   os_start
 	.size	__start, .-__start
 
 	/* This global variable is unsigned long g_heapbase and is

arch/avr/src/common/up_internal.h

@@ -194,10 +194,6 @@ extern void lowconsole_init(void);
 
 extern void up_timerinit(void);
 
-/* Defined in chip/xxx_irq.c */
-
-extern void up_maskack_irq(int irq);
-
 /* Defined in configs/<board-name>/src/up_leds.c */
 
 #ifdef CONFIG_ARCH_LEDS

configs/avr32dev1/ostest/defconfig

@@ -52,6 +52,9 @@
 # CONFIG_DRAM_SIZE - Describes the installed DRAM.
 # CONFIG_DRAM_START - The start address of DRAM (physical)
 # CONFIG_DRAM_END - Last address+1 of installed RAM
+# CONFIG_ARCH_NOINTC - define if the architecture does not
+#   support an interrupt controller or otherwise cannot support
+#   APIs like up_enable_irq() and up_disable_irq().
 # CONFIG_ARCH_IRQPRIO - Define if MCU supports interrupt prioritization
 # CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
 #   stack. If defined, this symbol is the size of the interrupt
@@ -80,6 +83,7 @@ CONFIG_BOARD_LOOPSPERMSEC=7982
 CONFIG_DRAM_SIZE=(32*1024)
 CONFIG_DRAM_START=0x10000000
 CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
+CONFIG_ARCH_NOINTC=y
 CONFIG_ARCH_IRQPRIO=y
 CONFIG_ARCH_INTERRUPTSTACK=n
 CONFIG_ARCH_STACKDUMP=y

sched/irq_attach.c

@@ -1,7 +1,7 @@
 /****************************************************************************
  * sched/irq_attach.c
  *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2008, 2010 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without