From 99006247ae0e797b1e699b6d8fe407ef4a61bab5 Mon Sep 17 00:00:00 2001
From: richardbarry <richardbarry@1d2547de-c912-0410-9cb9-b8ca96c0e9e2>
Date: Wed, 18 Aug 2010 13:29:12 +0000
Subject: [PATCH] Continue work on RX600 port - work in progress.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@1047 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
---
 Source/portable/Renesas/RX600/port.c      | 42 ++++++++++++++++-------
 Source/portable/Renesas/RX600/portmacro.h |  9 +++--
 2 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/Source/portable/Renesas/RX600/port.c b/Source/portable/Renesas/RX600/port.c
index 8e3cc871d..2998d30cd 100644
--- a/Source/portable/Renesas/RX600/port.c
+++ b/Source/portable/Renesas/RX600/port.c
@@ -62,6 +62,9 @@
 /* Library includes. */
 #include "string.h"
 
+/* Hardware specifics. */
+#include "iodefine.h"
+
 /*-----------------------------------------------------------*/
 
 /* Tasks should start with interrupts enabled, therefore PSW is set with U,I,PM 
@@ -72,8 +75,8 @@ flags set and IPL clear. */
  PM = 0 Supervisor mode.
  IPL = 0 All interrupt priorities enabled.
 */
-#define portINITIAL_PSW      ( ( portSTACK_TYPE ) 0x00030000 )
-#define portINITIAL_FPSW     ( ( portSTACK_TYPE ) 0x00000100 )
+#define portINITIAL_PSW     ( ( portSTACK_TYPE ) 0x00030000 )
+#define portINITIAL_FPSW    ( ( portSTACK_TYPE ) 0x00000100 )
 
 
 /*-----------------------------------------------------------*/
@@ -163,6 +166,15 @@ extern void vApplicationSetupTimerInterrupt( void );
 		use.  A demo application is provided to show a suitable example. */
 		vApplicationSetupTimerInterrupt();
 
+		/* Enable the software interrupt. */		
+		_IEN( _ICU_SWINT ) = 1;
+		
+		/* Ensure the software interrupt is clear. */
+		_IR( _ICU_SWINT ) = 0;
+		
+		/* Ensure the software interrupt is set to the kernel priority. */
+		_IPR( _ICU_SWINT ) = configKERNEL_INTERRUPT_PRIORITY;
+	
 		/* Start the first task. */
 		prvStartFirstTask();
 	}
@@ -178,26 +190,30 @@ void vPortEndScheduler( void )
 }
 /*-----------------------------------------------------------*/
 
-void vPortYield( void )
-{
-}
-/*-----------------------------------------------------------*/
-
-#pragma interrupt (vTickISR(vect=configTICK_VECTOR,enable))
+#pragma interrupt ( vTickISR( vect = _VECT( configTICK_VECTOR ), enable ) )
 void vTickISR( void )
 {
-	/* Restore previous IPL on exit. */
-	//set_ipl( configMAX_SYSCALL_INTERRUPT_PRIORITY );
+static volatile unsigned long ul = 0;
+
+	ul++;
 	
 	/* Clear the interrupt. */
-	vTaskIncrementTick();
+//	vTaskIncrementTick();
 	
 	#if( configUSE_PREEMPTION == 1 )
-		taskYIELD();
+//		taskYIELD();
 	#endif
 }
 /*-----------------------------------------------------------*/
 
+#pragma interrupt ( vSoftwareInterruptISR( vect = _VECT( _ICU_SWINT ), enable ) )
+void vSoftwareInterruptISR( void )
+{
+static volatile unsigned long ul = 0;
+
+	ul++;
+}
+
 #pragma inline_asm prvStartFirstTask
 static void prvStartFirstTask( void )
 {
@@ -225,3 +241,5 @@ static void prvStartFirstTask( void )
     NOP
     NOP
 }
+
+
diff --git a/Source/portable/Renesas/RX600/portmacro.h b/Source/portable/Renesas/RX600/portmacro.h
index 612219ac2..8bc1667e3 100644
--- a/Source/portable/Renesas/RX600/portmacro.h
+++ b/Source/portable/Renesas/RX600/portmacro.h
@@ -99,8 +99,10 @@ portSTACK_TYPE and portBASE_TYPE. */
 #define portSTART_SCHEDULER_TRAP_NO		( 32 )
 #define portKERNEL_INTERRUPT_PRIORITY	( 1 )
 
-void vPortYield( void );
-#define portYIELD()						vPortYield()
+/* The location of the software interrupt register.  Software interrupts use
+vector 27. */
+#define portITU_SWINTR			( ( unsigned char * ) 0x000872E0 )
+#define portYIELD()				*portITU_SWINTR = 0x01; nop(); nop(); nop(); nop(); nop()
 
 extern void vTaskSwitchContext( void );
 #define portYIELD_FROM_ISR( x )			if( x != pdFALSE ) vTaskSwitchContext()
@@ -110,7 +112,7 @@ extern void vTaskSwitchContext( void );
  * and taskEXIT_CRITICAL() macros.
  */
 #define portENABLE_INTERRUPTS() 	set_ipl( 0 )
-#define portDISABLE_INTERRUPTS() 	set_ipl( configKERNEL_INTERRUPT_PRIORITY )
+#define portDISABLE_INTERRUPTS() 	set_ipl( configMAX_SYSCALL_INTERRUPT_PRIORITY )
 
 #define portSET_INTERRUPT_MASK_FROM_ISR() get_ipl(); set_ipl( configMAX_SYSCALL_INTERRUPT_PRIORITY )
 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( uxSavedInterruptStatus ) set_ipl( uxSavedInterruptStatus )
@@ -124,6 +126,7 @@ extern void vTaskExitCritical( void );
 #define portENTER_CRITICAL()	vTaskEnterCritical();
 #define portEXIT_CRITICAL()		vTaskExitCritical();
 
+
 /*-----------------------------------------------------------*/
 
 /* Task function macros as described on the FreeRTOS.org WEB site. */
-- 
2.39.2