From: hades <hades>
Date: Tue, 9 May 2000 12:21:33 +0000 (+0000)
Subject: Readout for Eriks DSP-Board (called Tof Image Processor)
X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=08dbe4a83b7c35dae62d47bcb3e55376b4570a7f;p=daqdata.git

Readout for Eriks DSP-Board (called Tof Image Processor)
---

diff --git a/hadaq/hwtip.c b/hadaq/hwtip.c
new file mode 100644
index 0000000..80fcbae
--- /dev/null
+++ b/hadaq/hwtip.c
@@ -0,0 +1,140 @@
+#include <assert.h>
+#include <string.h>
+
+#include <sys/time.h>
+#include <hadesstd.h>
+#include <lvme.h>
+
+#if 1
+#include "subevt.h"
+#endif
+#include "param.h"
+
+#include "tof_defs.h"
+#include "hwtip.h"
+
+
+static int bankRequested(HwTip *my) {
+	UInt2 val;
+
+	val = my->bankRequested;
+	return val;
+}
+
+#if 0
+static int bankConfirmed(HwTip *my) {
+	UInt2 val;
+
+	val = -1;
+	return val;
+}
+#endif
+
+static int endOfData(HwTip *my) {
+	return LVme_getL(my->lvme, my->fifo) + my->fifo;
+}
+
+int conHwTip(HwTip * my, const char *name, const Param *param)
+{
+  unsigned long cardBase;
+  int i;
+
+  assert(my != NULL);
+
+  strcpy(my->name, name);
+
+  cardBase = Param_getVal(param, my->name, "cardbase");
+  my->lvme = allocMem(sizeof(LVme));
+  if (0 > conLVme(my->lvme, cardBase, 0x10000000UL, 0x09UL, 0, 0)) {
+    msglog(LOG_ERR, "HwTip on %p not found\n", cardBase);
+    return -1;
+  }
+  my->currAddr = 0xffffffff; /* start at the end */
+  my->bankRequested = 1;     /* of the empty bank */
+  my->pipeFull = 1;
+  my->daqRq = 0;
+  my->daqGr = 2;
+  my->fifo = 0x01000000;
+
+  return 0;
+}
+
+void desHwTip(HwTip * my)
+{
+  desLVme(my->lvme);
+}
+
+void HwTip_requestBuffer(HwTip *my) {
+  LVme_clrBitL(my->lvme, EXT_DAQ, my->daqRq);
+  while (LVme_tstBitL(my->lvme, EXT_DAQ, my->daqGr)) {
+#if 1
+			struct timespec tS, *t = &tS;
+			t->tv_sec = 0;
+			t->tv_nsec = 020000000;
+			nanosleep(t, NULL);
+#endif
+  }
+  if (my->bankRequested == 0) {
+  	my->bankRequested = 1;
+	my->pipeFull = 2;
+	my->daqRq = 1;
+	my->daqGr = 3;
+	my->fifo = 0x01000800;
+  } else {
+  	my->bankRequested = 0;
+	my->pipeFull = 1;
+	my->daqRq = 0;
+	my->daqGr = 2;
+	my->fifo = 0x01000000;
+  }
+  msglog(LOG_DEBUG, "wait for data\n");
+  while (!LVme_tstBitL(my->lvme, EXT_STATUS, my->pipeFull)) {
+#if 1
+			struct timespec tS, *t = &tS;
+			t->tv_sec = 0;
+			t->tv_nsec = 020000000;
+			nanosleep(t, NULL);
+#endif
+  }
+  msglog(LOG_DEBUG, "data available\n");
+  LVme_setBitL(my->lvme, EXT_DAQ, my->daqRq);
+
+  my->currAddr = my->fifo + 0x4;
+}
+
+int HwTip_isBusy(HwTip *my) {
+  return !LVme_tstBitL(my->lvme, EXT_DAQ, my->daqGr);
+}
+
+int HwTip_isEmpty(HwTip *my) {
+  return my->currAddr >= endOfData(my);
+}
+
+int HwTip_readSubEvt(HwTip *my, void *subEvt) {
+  UInt4 *data = (UInt4 *)subEvt;
+  int firstAddr;
+  size_t size;
+  UInt1 trigTag;
+
+#if 0
+  size = LVme_getL(my->lvme, my->currAddr);
+
+  /* copy one sub evt from RC to memory */
+  for (firstAddr = my->currAddr; my->currAddr - firstAddr < size; my->currAddr += 4) {
+  	*data++ = LVme_getL(my->lvme, my->currAddr);
+  }
+
+  trigTag = SubEvt_trigNr(subEvt) & 0xff;
+#else
+  my->currAddr = 0xffffffff;
+  SubEvt_setDecoding(subEvt, 0x00020001);
+  SubEvt_setSize(subEvt, 16);
+  SubEvt_setId(subEvt, 1);
+#endif
+
+  /* normal extension of trigger tag */
+  SubEvt_setTrigNr(subEvt, my->trigNr << 8 | trigTag);
+  my->trigNr++;
+
+  return 0;
+}
diff --git a/hadaq/hwtip.h b/hadaq/hwtip.h
new file mode 100644
index 0000000..84930e1
--- /dev/null
+++ b/hadaq/hwtip.h
@@ -0,0 +1,29 @@
+#ifndef HWTIP_H
+#define HWTIP_H
+
+#include <lvme.h>
+
+#include "param.h"
+
+typedef struct HwTipS {
+  char name[16];
+  LVme *lvme;
+  unsigned long  currAddr;
+  unsigned trigNr;
+  unsigned long bankRequested;
+  unsigned long pipeFull;
+  unsigned long daqRq;
+  unsigned long daqGr;
+  unsigned long fifo;
+} HwTip;
+
+
+int conHwTip(HwTip *my, const char *name, const Param *param);
+void desHwTip(HwTip *my);
+
+void HwTip_requestBuffer(HwTip *my);
+int HwTip_isBusy(HwTip *my);
+int HwTip_isEmpty(HwTip *my);
+int HwTip_readSubEvt(HwTip *my, void *subEvt);
+
+#endif