From 7425d684d92200a34fd41becece0d18de866ade8 Mon Sep 17 00:00:00 2001
From: RichardBarry <RichardBarry@1d2547de-c912-0410-9cb9-b8ca96c0e9e2>
Date: Mon, 26 Jan 2009 17:30:18 +0000
Subject: [PATCH] More work in progress on NEC port and demo.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@626 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
---
 Demo/NEC_V850ES_Fx3_IAR/FreeRTOSConfig.h      |   4 +-
 Demo/NEC_V850ES_Fx3_IAR/main.c                |  17 +-
 Demo/NEC_V850ES_Fx3_IAR/rtosdemo.ewp          |   4 +
 Demo/NEC_V850ES_Fx3_IAR/serial/serial.c       | 256 ++++++++++++++++++
 Demo/NEC_V850ES_Fx3_IAR/serial/serialISR.s85  |  47 ++++
 .../settings/rtosdemo.dbgdt                   |  18 +-
 Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dni |   3 +-
 .../NEC_V850ES_Fx3_IAR/settings/rtosdemo.wsdt |   4 +-
 8 files changed, 332 insertions(+), 21 deletions(-)
 create mode 100644 Demo/NEC_V850ES_Fx3_IAR/serial/serial.c
 create mode 100644 Demo/NEC_V850ES_Fx3_IAR/serial/serialISR.s85

diff --git a/Demo/NEC_V850ES_Fx3_IAR/FreeRTOSConfig.h b/Demo/NEC_V850ES_Fx3_IAR/FreeRTOSConfig.h
index dc8338112..14bc86b30 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/FreeRTOSConfig.h
+++ b/Demo/NEC_V850ES_Fx3_IAR/FreeRTOSConfig.h
@@ -86,8 +86,8 @@
 #define configCPU_CLOCK_HZ				( ( unsigned portLONG ) 48000000 )  /* using the external clock source */
 #define configTICK_RATE_HZ				( ( portTickType ) 1000 )
 #define configMAX_PRIORITIES			( ( unsigned portBASE_TYPE ) 4 )
-#define configMINIMAL_STACK_SIZE		( ( unsigned portSHORT ) 64 )
-#define configTOTAL_HEAP_SIZE			( (size_t ) ( 20000 ) )
+#define configMINIMAL_STACK_SIZE		( ( unsigned portSHORT ) 85 )
+#define configTOTAL_HEAP_SIZE			( (size_t ) ( 60000 ) )
 #define configMAX_TASK_NAME_LEN			( 10 )
 #define configUSE_TRACE_FACILITY		0
 #define configUSE_16_BIT_TICKS			0
diff --git a/Demo/NEC_V850ES_Fx3_IAR/main.c b/Demo/NEC_V850ES_Fx3_IAR/main.c
index c6d5d2568..38a0864f3 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/main.c
+++ b/Demo/NEC_V850ES_Fx3_IAR/main.c
@@ -81,6 +81,8 @@
 #define mainGEN_QUEUE_TASK_PRIORITY			( tskIDLE_PRIORITY )
 #define mainCOMTEST_PRIORITY				( tskIDLE_PRIORITY + 1 )
 
+#define mainCHECK_PARAMETER					( ( void * ) 0x12345678 )
+
 /* The period between executions of the check task. */
 #define mainNO_ERROR_DELAY		( ( portTickType ) 3000 / portTICK_RATE_MS  )
 #define mainERROR_DELAY			( ( portTickType ) 500 / portTICK_RATE_MS )
@@ -129,10 +131,10 @@ void main( void )
 	vAltStartComTestTasks( mainCOMTEST_PRIORITY, mainBAUD_RATE, mainCOMTEST_LED );
 
 	/* Create the tasks defined within this file. */
-	xTaskCreate( prvCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
+	xTaskCreate( prvCheckTask, "Check", configMINIMAL_STACK_SIZE, mainCHECK_PARAMETER, mainCHECK_TASK_PRIORITY, NULL );
 
-	xTaskCreate( vRegTest1, "Check", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
-	xTaskCreate( vRegTest2, "Check", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
+	xTaskCreate( vRegTest1, "Reg1", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
+	xTaskCreate( vRegTest2, "Reg2", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY, NULL );
 
 	/* The suicide tasks must be created last as they need to know how many
 	tasks were running prior to their creation in order to ascertain whether
@@ -152,8 +154,11 @@ static void prvCheckTask( void *pvParameters )
 {
 portTickType xDelayPeriod = mainNO_ERROR_DELAY, xLastWakeTime;
 
-	/* Just to remove the compiler warning. */
-	( void ) pvParameters;
+	/* Ensure parameter is passed in correctly. */
+	if( pvParameters != mainCHECK_PARAMETER )
+	{
+		xDelayPeriod = mainERROR_DELAY;
+	}
 
 	xLastWakeTime = xTaskGetTickCount();
 	
@@ -293,5 +298,3 @@ void vApplicationStackOverflowHook( void )
 	for( ;; );
 }
 
-
-
diff --git a/Demo/NEC_V850ES_Fx3_IAR/rtosdemo.ewp b/Demo/NEC_V850ES_Fx3_IAR/rtosdemo.ewp
index 42db43982..4b1c1ff7e 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/rtosdemo.ewp
+++ b/Demo/NEC_V850ES_Fx3_IAR/rtosdemo.ewp
@@ -481,6 +481,7 @@
         <option>
           <name>OAIncludePath2</name>
           <state>$PROJ_DIR$</state>
+          <state>$PROJ_DIR$\..\..\Source\portable\IAR\V850ES_Fx3</state>
         </option>
         <option>
           <name>OAStdIncCheck</name>
@@ -1687,6 +1688,9 @@
     <file>
       <name>$PROJ_DIR$\serial\serial.c</name>
     </file>
+    <file>
+      <name>$PROJ_DIR$\serial\serialISR.s85</name>
+    </file>
   </group>
   <group>
     <name>kernel source</name>
diff --git a/Demo/NEC_V850ES_Fx3_IAR/serial/serial.c b/Demo/NEC_V850ES_Fx3_IAR/serial/serial.c
new file mode 100644
index 000000000..a55708a55
--- /dev/null
+++ b/Demo/NEC_V850ES_Fx3_IAR/serial/serial.c
@@ -0,0 +1,256 @@
+/*
+	FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 Richard Barry.
+
+	This file is part of the FreeRTOS.org distribution.
+
+	FreeRTOS.org 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 of the License, or
+	(at your option) any later version.
+
+	FreeRTOS.org 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 FreeRTOS.org; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+	A special exception to the GPL can be applied should you wish to distribute
+	a combined work that includes FreeRTOS.org, without being obliged to provide
+	the source code for any proprietary components.  See the licensing section
+	of http://www.FreeRTOS.org for full details of how and when the exception
+	can be applied.
+
+    ***************************************************************************
+    ***************************************************************************
+    *                                                                         *
+    * SAVE TIME AND MONEY!  We can port FreeRTOS.org to your own hardware,    *
+    * and even write all or part of your application on your behalf.          *
+    * See http://www.OpenRTOS.com for details of the services we provide to   *
+    * expedite your project.                                                  *
+    *                                                                         *
+    ***************************************************************************
+    ***************************************************************************
+
+	Please ensure to read the configuration and relevant port sections of the
+	online documentation.
+
+	http://www.FreeRTOS.org - Documentation, latest information, license and
+	contact details.
+
+	http://www.SafeRTOS.com - A version that is certified for use in safety
+	critical systems.
+
+	http://www.OpenRTOS.com - Commercial support, development, porting,
+	licensing and training services.
+*/
+
+/*
+	BASIC INTERRUPT DRIVEN SERIAL PORT DRIVER FOR UART0.
+*/
+
+/* Standard includes. */
+#include <stdlib.h>
+
+/* Scheduler includes. */
+#include "FreeRTOS.h"
+#include "queue.h"
+
+/* Demo application includes. */
+#include "serial.h"
+
+
+
+#define serRX_DATA_PIN		( 0x01 )
+#define serTX_DATA_PIN		( 0x02 )
+
+#define serCLOCK_Fxx_DIV_8		0x03
+#define serUPWR		( 0x80 )
+#define serUTXE		( 0x40 )
+#define serURXE		( 0x20 )
+#define serUCL		( 0x02 )
+#define serLSB		( 0x10 )
+
+/* Misc. */
+#define serINVALID_QUEUE				( ( xQueueHandle ) 0 )
+#define serHANDLE						( ( xComPortHandle ) 1 )
+#define serNO_BLOCK						( ( portTickType ) 0 )
+
+/*-----------------------------------------------------------*/
+
+/* Queues used to hold received characters, and characters waiting to be
+transmitted. */
+static xQueueHandle xRxedChars;
+static xQueueHandle xCharsForTx;
+
+/*-----------------------------------------------------------*/
+
+/* Interrupt entry point written in the assembler file serialISR.s79. */
+extern void vSerialISREntry( void );
+
+/* The interrupt service routine - called from the assembly entry point. */
+void vSerialISR( void );
+
+static volatile unsigned long ulTxInProgress = pdFALSE;
+
+/*-----------------------------------------------------------*/
+
+/*
+ * See the serial2.h header file.
+ */
+xComPortHandle xSerialPortInitMinimal( unsigned portLONG ulWantedBaud, unsigned portBASE_TYPE uxQueueLength )
+{
+xComPortHandle xReturn = serHANDLE;
+extern void ( vUART_ISR )( void );
+const unsigned portLONG ulFuclk = ( configCPU_CLOCK_HZ / 2 ) / 8UL;
+
+	/* Create the queues used to hold Rx and Tx characters. */
+	xRxedChars = xQueueCreate( uxQueueLength, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
+	xCharsForTx = xQueueCreate( uxQueueLength + 1, ( unsigned portBASE_TYPE ) sizeof( signed portCHAR ) );
+
+	/* If the queues were created correctly then setup the serial port
+	hardware. */
+	if( ( xRxedChars != serINVALID_QUEUE ) && ( xCharsForTx != serINVALID_QUEUE ) )
+	{
+		portENTER_CRITICAL();
+		{
+			/* Set the UART0 Rx and Tx pins to their alternative function. */
+			PMC3 |= ( serRX_DATA_PIN | serTX_DATA_PIN );
+			PM3 &= ~( serTX_DATA_PIN );
+
+			/* Setup clock for required baud. */			
+			UD0CTL1 = serCLOCK_Fxx_DIV_8;
+			UD0CTL2 = ulFuclk / ( 2 * ulWantedBaud );
+
+			/* Enable, n81. */			
+			UD0CTL0 = ( serUPWR | serUTXE | serURXE | serUCL | serLSB );
+			
+			UD0TIC  = 0x07;							/* UARTA0 transmit enable interrupt request signal clear, mask release, priority level 7 set */
+			UD0RIC  = 0x07;							/* UARTA0 receive end interrupt request signal clear, mask release, priority level 7 set */			
+			
+			ulTxInProgress = pdFALSE;
+		}
+		portEXIT_CRITICAL();
+	}
+	else
+	{
+		xReturn = ( xComPortHandle ) 0;
+	}
+
+	/* This demo file only supports a single port but we have to return
+	something to comply with the standard demo header file. */
+	return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+signed portBASE_TYPE xSerialGetChar( xComPortHandle pxPort, signed portCHAR *pcRxedChar, portTickType xBlockTime )
+{
+	/* The port handle is not required as this driver only supports one port. */
+	( void ) pxPort;
+
+	/* Get the next character from the buffer.  Return false if no characters
+	are available, or arrive before xBlockTime expires. */
+	if( xQueueReceive( xRxedChars, pcRxedChar, xBlockTime ) )
+	{
+		return pdTRUE;
+	}
+	else
+	{
+		return pdFALSE;
+	}
+}
+/*-----------------------------------------------------------*/
+
+void vSerialPutString( xComPortHandle pxPort, const signed portCHAR * const pcString, unsigned portSHORT usStringLength )
+{
+signed portCHAR *pxNext;
+
+	/* A couple of parameters that this port does not use. */
+	( void ) usStringLength;
+	( void ) pxPort;
+
+	/* NOTE: This implementation does not handle the queue being full as no
+	block time is used! */
+
+	/* The port handle is not required as this driver only supports UART0. */
+	( void ) pxPort;
+
+	/* Send each character in the string, one at a time. */
+	pxNext = ( signed portCHAR * ) pcString;
+	while( *pxNext )
+	{
+		xSerialPutChar( pxPort, *pxNext, serNO_BLOCK );
+		pxNext++;
+	}
+}
+/*-----------------------------------------------------------*/
+
+signed portBASE_TYPE xSerialPutChar( xComPortHandle pxPort, signed portCHAR cOutChar, portTickType xBlockTime )
+{
+portBASE_TYPE xReturn = pdPASS;
+
+	portENTER_CRITICAL();
+	{
+		if( ulTxInProgress == pdFALSE )
+		{
+			UD0TX = cOutChar;
+			ulTxInProgress = pdTRUE;
+		}
+		else
+		{
+			if( xQueueSend( xCharsForTx, &cOutChar, xBlockTime ) != pdPASS )
+			{
+				xReturn = pdFAIL;
+			}
+		}
+	}
+	portEXIT_CRITICAL();
+	
+	return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+void vSerialClose( xComPortHandle xPort )
+{
+	/* Not supported as not required by the demo application. */
+}
+/*-----------------------------------------------------------*/
+
+//#pragma vector=INTUD0T_vector
+//extern __interrupt void vUARTTxISRWrapper( void );
+//#pragma required=vUARTTxISRWrapper
+
+void vUARTTxISRHandler( void )
+{
+char cChar;
+portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
+
+	if( xQueueReceiveFromISR( xCharsForTx, &cChar, &xHigherPriorityTaskWoken ) == pdTRUE )
+	{
+		UD0TX = cChar;
+	}
+	else
+	{
+		ulTxInProgress = pdFALSE;
+	}
+}
+
+//#pragma vector=INTUD0R_vector
+//extern __interrupt void vUARTRxISRWrapper( void );
+//#pragma required=vUARTRxISRWrapper
+
+void vUARTRxISRHandler( void )
+{
+portCHAR cChar;
+portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
+
+	cChar = UD0RX;
+	xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
+}
+
+
+
+
+	
diff --git a/Demo/NEC_V850ES_Fx3_IAR/serial/serialISR.s85 b/Demo/NEC_V850ES_Fx3_IAR/serial/serialISR.s85
new file mode 100644
index 000000000..01e81ff7f
--- /dev/null
+++ b/Demo/NEC_V850ES_Fx3_IAR/serial/serialISR.s85
@@ -0,0 +1,47 @@
+		RSEG ICODE:CODE
+
+		EXTERN vUARTRxISRHandler
+		EXTERN vUARTTxISRHandler		
+		
+		PUBLIC vUARTRxISRWrapper
+		PUBLIC vUARTTxISRWrapper		
+
+; Wrappers for the serial port interrupt service routines.  These can cause a
+; context switch so requires an assembly wrapper.
+
+; Defines the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
+#include "ISR_Support.h"
+
+vUARTRxISRWrapper:
+
+	portSAVE_CONTEXT				; Save the context of the current task.
+
+	jarl	vUARTRxISRHandler, lp	; Call the ISR routine.
+
+	portRESTORE_CONTEXT				; Restore the context of the current task -
+									; which may be different to the task that
+									; was interrupted.
+
+vUARTTxISRWrapper:
+
+	portSAVE_CONTEXT				; Save the context of the current task.
+
+	jarl	vUARTTxISRHandler, lp	; Call the ISR routine.
+
+	portRESTORE_CONTEXT				; Restore the context of the current task -
+									; which may be different to the task that
+									; was interrupted.
+
+
+      COMMON INTVEC:CODE:ROOT(2)
+      ORG 2c0H
+`??vUARTRxISRWrapper??INTVEC 2c0`:
+        JR vUARTRxISRWrapper
+
+      COMMON INTVEC:CODE:ROOT(2)
+      ORG 2d0H
+`??vUARTTxISRWrapper??INTVEC 2d0`:
+        JR vUARTTxISRWrapper
+
+	END
+
diff --git a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dbgdt b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dbgdt
index a06761584..f97508dbf 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dbgdt
+++ b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dbgdt
@@ -16,18 +16,18 @@
           
           
           
-        <Column0>416</Column0><Column1>27</Column1><Column2>27</Column2><Column3>27</Column3></ColumnWidths>
+        <Column0>93</Column0><Column1>27</Column1><Column2>27</Column2><Column3>27</Column3></ColumnWidths>
       </Workspace>
       <Disassembly>
         
         
       <PreferedWindows><Position>2</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows><MixedMode>1</MixedMode><CodeCovShow>0</CodeCovShow></Disassembly>
-    <Register><PreferedWindows><Position>2</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows></Register></Static>
+    <Register><PreferedWindows><Position>2</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows></Register><Watch><Format><struct_types/><watch_formats/></Format><PreferedWindows><Position>2</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows><Column0>156</Column0><Column1>100</Column1><Column2>100</Column2><Column3>100</Column3></Watch><Memory><PreferedWindows><Position>3</Position><ScreenPosX>0</ScreenPosX><ScreenPosY>0</ScreenPosY><Windows/></PreferedWindows><FindDirection>1</FindDirection><FindAsHex>0</FindAsHex></Memory><Find-in-Files><ColumnWidth0>580</ColumnWidth0><ColumnWidth1>82</ColumnWidth1><ColumnWidth2>994</ColumnWidth2></Find-in-Files></Static>
     <Windows>
       
       
       
-    <Wnd2>
+    <Wnd0>
         <Tabs>
           <Tab>
             <Identity>TabID-757-1323</Identity>
@@ -41,9 +41,9 @@
             <Factory>Build</Factory>
             <Session/>
           </Tab>
-        </Tabs>
+        <Tab><Identity>TabID-20969-27878</Identity><TabName>Find in Files</TabName><Factory>Find-in-Files</Factory><Session/></Tab><Tab><Identity>TabID-27119-4411</Identity><TabName>Breakpoints</TabName><Factory>Breakpoints</Factory></Tab></Tabs>
         
-      <SelectedTab>0</SelectedTab></Wnd2><Wnd3>
+      <SelectedTab>0</SelectedTab></Wnd0><Wnd1>
         <Tabs>
           <Tab>
             <Identity>TabID-11505-1326</Identity>
@@ -51,24 +51,24 @@
             <Factory>Workspace</Factory>
             <Session>
               
-            <NodeDict><ExpandedNode>rtosdemo</ExpandedNode><ExpandedNode>rtosdemo/demo source</ExpandedNode><ExpandedNode>rtosdemo/kernel source</ExpandedNode></NodeDict></Session>
+            <NodeDict><ExpandedNode>rtosdemo</ExpandedNode><ExpandedNode>rtosdemo/demo source</ExpandedNode><ExpandedNode>rtosdemo/demo source/Standard Demo Tasks</ExpandedNode><ExpandedNode>rtosdemo/kernel source</ExpandedNode><ExpandedNode>rtosdemo/kernel source/port.c</ExpandedNode></NodeDict></Session>
           </Tab>
         </Tabs>
         
-      <SelectedTab>0</SelectedTab></Wnd3></Windows>
+      <SelectedTab>0</SelectedTab></Wnd1><Wnd2><Tabs><Tab><Identity>TabID-27476-15253</Identity><TabName>Register</TabName><Factory>Register</Factory><Session><REG1>0</REG1><REG2>0</REG2><Group>0</Group><States>2</States><State0>EIPSW</State0><State1>PSW</State1></Session></Tab></Tabs><SelectedTab>0</SelectedTab></Wnd2></Windows>
     <Editor>
       
       
       
       
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diff --git a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dni b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dni
index 3ac16814f..385b3b7b7 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dni
+++ b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.dni
@@ -236,7 +236,8 @@ Category=_ 0
 LoggingEnabled=_ 0
 LogFile=_ ""
 [Breakpoints]
-Count=0
+Bp0=_ "STD_CODE" "{C:\E\Dev\FreeRTOS\WorkingCopy3\Source\queue.c}.998.8@1" 1 0 0 0 "" 0 ""
+Count=1
 [TraceHelper]
 Enabled=1
 ShowSource=1
diff --git a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.wsdt b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.wsdt
index e88bb238b..496deec93 100644
--- a/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.wsdt
+++ b/Demo/NEC_V850ES_Fx3_IAR/settings/rtosdemo.wsdt
@@ -35,14 +35,14 @@
       
       
       
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   </Desktop>
 </Workspace>
 
-- 
2.39.2