initial version 1.0

Makefile

+#Makefile at top of application tree
+TOP = .
+include $(TOP)/configure/CONFIG
+DIRS := configure src
+include $(TOP)/configure/RULES_TOP

configure/CONFIG

+#CONFIG
+include $(TOP)/configure/CONFIG_APP
+# Add any changes to make definitions here
+
+#CROSS_COMPILER_TARGET_ARCHS = 
+
+# Use this when your IOC and the host use different paths
+# to access the application. Typically this will be 
+# used with the Microsoft FTP server or with NFS mounts. Use
+# is indicated by failure of the cdCommands script on
+# vxWorks. You must rebuild in the iocBoot directory 
+# before this takes effect.
+#IOCS_APPL_TOP = <the top of the application as seen by the IOC>

configure/CONFIG_APP

+# CONFIG_APP
+
+include $(TOP)/configure/RELEASE
+-include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH)
+-include $(TOP)/configure/RELEASE.Common.$(T_A)
+-include $(TOP)/configure/RELEASE.$(EPICS_HOST_ARCH).$(T_A)
+
+CONFIG=$(EPICS_BASE)/configure
+include $(CONFIG)/CONFIG
+
+INSTALL_LOCATION = $(TOP)
+ifdef INSTALL_LOCATION_APP
+INSTALL_LOCATION = $(INSTALL_LOCATION_APP)
+endif
+
+ifdef T_A
+-include $(TOP)/configure/O.$(T_A)/CONFIG_APP_INCLUDE
+endif
+
+# dbst based database optimization (default: NO)
+DB_OPT = NO
+
+##############   Start BSP Specific Additions ##################
+
+# Debug FLAGS needed for bsp specific code
+USR_CFLAGS_vxWorks-68040 += -DHAVE_MVME162
+USR_CFLAGS_vxWorks-ppc603 += -DHAVE_MVME2100
+USR_CFLAGS_vxWorks-ppc604_long += -DHAVE_MVME2400
+
+# VxWorks include directory paths
+USR_INCLUDES_vxWorks += -I $(VX_DIR)/target/config/all
+USR_INCLUDES_vxWorks += -I $(VX_DIR)/target/config
+
+##############    End BSP Specific Additions  ##################

configure/Makefile

+# Makefile
+
+TOP=..
+
+include $(TOP)/configure/CONFIG
+
+# Set the following to NO to disable consistency checking of
+# the support applications defined in $(TOP)/configure/RELEASE
+CHECK_RELEASE = YES
+
+TARGETS = $(CONFIG_TARGETS)
+CONFIGS += $(subst ../,,$(wildcard $(CONFIG_INSTALLS)))
+
+include $(TOP)/configure/RULES
+

configure/RELEASE

+#RELEASE Location of external products
+# Run "gnumake clean uninstall install" in the application
+# top directory each time this file is changed.
+#
+# NOTE: The build does not check dependancies on files
+# external to this application. Thus you should run
+# "gnumake clean uninstall install" in the top directory
+# each time EPICS_BASE, SNCSEQ, or any other external
+# module defined in the RELEASE file is rebuilt.
+
+#TEMPLATE_TOP=$(EPICS_BASE)/templates/makeBaseApp/top
+
+# If you don't want to install into $(TOP) then
+# define INSTALL_LOCATION_APP here
+#INSTALL_LOCATION_APP=<fullpathname>
+
+#If using the sequencer, point SNCSEQ at its top directory:
+#SNCSEQ=$(EPICS_BASE)/../modules/soft/seq
+
+# EPICS_BASE usually appears last so other apps can override stuff:
+EPICS_BASE=/opt/Epics/R3.14.10/base/3-14-10-0-1
+
+#Capfast users may need the following definitions
+#CAPFAST_TEMPLATES=
+#SCH2EDIF_PATH=

configure/RULES

+#CONFIG
+include $(EPICS_BASE)/configure/RULES
+
+# Library should be rebuilt because LIBOBJS may have changed.
+$(LIBNAME): ../Makefile

configure/RULES.ioc

+#RULES.ioc
+include $(EPICS_BASE)/configure/RULES.ioc

configure/RULES_DIRS

+#RULES_DIRS
+include $(EPICS_BASE)/configure/RULES_DIRS

configure/RULES_TOP

+#RULES_TOP
+include $(EPICS_BASE)/configure/RULES_TOP
+

src/Makefile

+TOP = ..
+include $(TOP)/configure/CONFIG_APP
+#-----------------------------------------------
+#  ADD MACRO DEFINITIONS AFTER THIS LINE
+
+INC += VMEtas.h
+LIBRARY_IOC = VMEtas
+
+LIB_SRCS_DEFAULT = VMEtas_nop.c
+
+LIB_SRCS_vxWorks = VMEtas_vxWorks.c
+
+ifeq ($(T_A),RTEMS-mvme2100)
+LIB_SRCS_RTEMS = VMEtas_RTEMS-UniverseII.c
+endif
+
+ifeq ($(T_A),RTEMS-mvme5500)
+LIB_SRCS_RTEMS = VMEtas_RTEMS-UniverseII.c
+endif
+
+include $(TOP)/configure/RULES
+#-----------------------------------------------
+#  ADD RULES AFTER THIS LINE

src/VMEtas.h

+/*+*********************************************************************
+ *
+ * File:       VMEtas.h
+ *
+ * Descr.:     test and set a VME byte addr
+ *
+ * Author(s):  Dan Eichel
+ *
+ * Copyright (c) 2010 by Berliner Elektronenspeicherring-Gesellschaft
+ *                            fuer Synchrotronstrahlung m.b.H.,
+ *                                    Berlin, Germany
+ *
+ *********************************************************************-*/
+
+#ifndef INCVMEtash
+#define INCVMEtash
+
+extern int VMEtas(unsigned char *addr);
+
+#endif  /* ifndef INCVMEtash */

src/VMEtas_RTEMS-UniverseII.c

+/*+*********************************************************************
+ *
+ * File:       VMEtas_RTEMS-UniverseII.c
+ *
+ * Descr.:     test and set a VME byte addr
+ *
+ * Author(s):  Dan Eichel
+ *
+ * Copyright (c) 2010 by Berliner Elektronenspeicherring-Gesellschaft
+ *                            fuer Synchrotronstrahlung m.b.H.,
+ *                                    Berlin, Germany
+ *
+ *********************************************************************-*/
+
+    /*----------------------------------------------------*/
+    /*			    History                       */
+    /*----------------------------------------------------*/
+    
+/* 
+  Version 1.0:
+  testest only for MVME2100 boards. The BSP for the MVME5500 CPUs
+  seems to be buggy, so that no RTEMS Application can be executed
+  on such IOCs. Different RTEMS versions from 4.9.0 until 4.9.4 with 
+  several BSP patches were tried, but none worked, so the behavior on 
+  this kind of IOCs is untested! (Date 2010-11-11)
+*/
+  
+    /*----------------------------------------------------*/
+    /*		        General Comments                  */
+    /*----------------------------------------------------*/
+
+/* 
+  The ppc handles data as big endian but all pci memory mapped registers / IO 
+  space are handled as little endian. So we have to reverse the byte order for 
+  accessing such memory parts.
+
+
+
+  bosi_test_and_set - test and set a location across the VMEbus utilizing RMW
+
+  This routine performs a test-and-set (TAS) instruction on the specified
+  address, which must be on a different VME board. This function emulates the 
+  TAS function known from the mc68000 processors. For compatibility with the old 
+  motorola CPUs only the highest bit in the adressed byte will be affected.
+  Unfortunally in this special mode the Universe II can only access adresses 
+  they are four byte aligned, so we have to program the 32bit mask register 
+  to access the right byte. (cf. Universe II User Manual, Chapter 3.4.5.1
+  Read-Modify-Write, Page 79 for detailed description)
+
+  NOTE: bosi_test_and_set can only test-and-set locations across the VMEbus, 
+        local addresses may be tested but never set.
+
+  RETURNS: TRUE  if the value had not been set but is now
+		   FALSE if the value was already set.                                   */
+
+
+
+#include <rtems.h>            /* rtems_interrupt_disable        */
+#include <stdio.h>            /* FILE *                         */
+#include <bsp/vmeUniverse.h>  /* register offsets and constants */
+#include <bsp.h>              /* PCI_DRAM_OFFSET                */
+
+#include "VMEtas.h"
+
+int VMEtas(unsigned char *addr)
+{
+    int state;
+    rtems_interrupt_level level;
+    /* due to the four byte alignment, the position of the target byte may vary */
+	/* with respect to the ppc endianness the mask's byte order is reversed */
+    unsigned long mask = 0x80000000 >> ((unsigned long) addr & 0x3) * 8;
+    unsigned long register dummy;
+
+    /* Lock interrupts so that issuing RMW are atomic */
+    rtems_interrupt_disable(level);
+	
+    *(unsigned long *) ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_EN) = mask;
+	*(unsigned long *) ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_CMP) = 0x0;
+	*(unsigned long *) ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_SWP) = 0x80808080;
+    
+	/* Convert RMW address into the PCI address space and write it into 
+       the UniverseII's UNIV_REGOFF_SCYC_ADDR register with respect 
+       of the PPCs endianness */
+	__asm__ volatile ("stwbrx %1,0,%2" 
+	  : "=r" (dummy)
+	  : "r" ((unsigned long) addr + PCI_DRAM_OFFSET), 
+        "r" ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_ADDR)
+	  );
+
+    /* generate a RMW cycle, triggerd be the next read access on addr */
+    *(unsigned long *) ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_CTL) = 
+    	UNIV_SCYC_CTL_SCYC_RMW << 24;
+
+	/* perform RMW to try and set TAS location */
+    state = *addr;
+    __asm__ volatile ("sync");
+    
+	*(unsigned long *) ((unsigned long) vmeUniverse0BaseAddr + UNIV_REGOFF_SCYC_CTL) = 0; /* Disable RMW cycle */
+
+    rtems_interrupt_enable(level);
+	
+    /* return TAS test result */
+    return (state & 0x80) ? (0) : (1);
+}

src/VMEtas_nop.c

+/*+*********************************************************************
+ *
+ * File:       VMEtas_nop.c
+ *
+ * Descr.:     test and set a VME byte addr
+ *
+ * Author(s):  Dan Eichel
+ *
+ * Copyright (c) 2010 by Berliner Elektronenspeicherring-Gesellschaft
+ *                            fuer Synchrotronstrahlung m.b.H.,
+ *                                    Berlin, Germany
+ *
+ *********************************************************************-*/
+
+#include <stdio.h>
+#include "VMEtas.h"
+
+int VMEtas(unsigned char *addr)
+{
+    printf("WARNING: VMEtas() not implemented for this arch!\n");
+    return 1; /* always true */
+}

src/VMEtas_vxWorks.c

+/*+*********************************************************************
+ *
+ * File:       VMEtas_vxWorks.c
+ *
+ * Descr.:     test and set a VME byte addr
+ *
+ * Author(s):  Dan Eichel
+ *
+ * Copyright (c) 2010 by Berliner Elektronenspeicherring-Gesellschaft
+ *                            fuer Synchrotronstrahlung m.b.H.,
+ *                                    Berlin, Germany
+ *
+ *********************************************************************-*/
+
+#include <sysLib.h>
+
+#include "VMEtas.h"
+
+int VMEtas(unsigned char *addr)
+{
+    return (0 == sysBusTas((char *)addr));
+}