From 0217b1d14c13c982687348fb489e6bc5889b763e Mon Sep 17 00:00:00 2001
From: zolliker <zolliker>
Date: Fri, 7 Jun 2013 06:43:10 +0000
Subject: [PATCH] - added external mode (for wiggle script)

---
 ipsdriv.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 49 insertions(+), 3 deletions(-)

diff --git a/ipsdriv.c b/ipsdriv.c
index 6182eca..933b753 100644
--- a/ipsdriv.c
+++ b/ipsdriv.c
@@ -58,6 +58,10 @@ typedef struct {
   int perswait;        /* wait time for persistent mode workaround (sec) */
   int heaterFault;
   int trainMode;       /* 0/1 read back for train mode, 2/3 command for trainMode */
+  int external;        /* 0: normal,
+                          1: go to external (script controlled) mode
+                          2: external mode
+                          3: go back to internal mode */
   DoThis dothis; 
   char *fmt;           /* fmt for field */
   int force;           /* force = 2: put heater switch even when stored field does not match */
@@ -264,6 +268,12 @@ void IpsParDef(void *object)
   ParList(0);
   ParInt(&drv->trainMode, PAR_NAN);
 
+  ParName("external");
+  ParAccess(usUser);
+  ParEnum(onOff);
+  ParList(0);
+  ParInt(&drv->external, 0);
+
   ParName("startScript");
   ParAccess(usUser);
   ParList("");
@@ -407,6 +417,19 @@ static long IpsRead(long pc, void *object)
       eab->state = EASE_idle;
     }
     EasePchk(drv);
+    if (drv->external == 2) return 0; /* external mode */
+    if (drv->external == 3) { /* switch back to internal */
+      drv->external = 0;
+      goto localLocked;
+    }
+    if (drv->external != 1) goto getstatus;
+    EaseWrite(eab, "C3");
+    return __LINE__;
+  case __LINE__:                 /**********************************/
+    drv->external = 2;
+    return 0;
+
+  getstatus:
     EaseWrite(eab, "X");
     return __LINE__;
   case __LINE__:                 /**********************************/
@@ -733,7 +756,7 @@ static long IpsChangeField(long pc, void *object)
     if (drv->lastfield == PAR_NAN) {
       drv->lastfield = drv->persfield;
     }
-    if (fabs(drv->d.targetValue - drv->lastfield) < 1e-5) {
+    if (fabs(drv->d.targetValue - drv->lastfield) < 0.5e-5) {
       ParPrintf(drv, -1, "IPS: we are already at field %f",
                 drv->lastfield);
       if (drv->persmode == 1) {
@@ -745,9 +768,26 @@ static long IpsChangeField(long pc, void *object)
           goto finish;
       }
     }
-    if (fabs(drv->current - drv->lastfield) < 1e-5) {
-      goto switch_on;
+    if (fabs(drv->current - drv->lastfield) >= 1.0e-5) {
+      goto ramp2setp;
     }
+
+    if (drv->perswitch)
+      goto wait_open;
+    if (drv->force == 2) {
+      EaseWrite(eab, "H2");
+    } else {
+      EaseWrite(eab, "H1");
+    }
+    drv->force = 0;
+    return __LINE__;
+  case __LINE__:                 /**********************************/
+    if (strcmp(drv->d.b.ans, "H") == 0) {
+      goto switched_on;
+    }
+    ParPrintf(drv, -1, "IPS: switching heater on failed, try again");
+
+  ramp2setp:
     OxiSet(eab, "J", drv->lastfield, 3);        /* set point */
     return __LINE__;
   case __LINE__:                 /**********************************/
@@ -794,6 +834,12 @@ static long IpsChangeField(long pc, void *object)
     drv->force = 0;
     return __LINE__;
   case __LINE__:                 /**********************************/
+    if (strcmp(drv->d.b.ans, "?H1") == 0) {
+      ParPrintf(drv, eError, "IPS: switching heater on failed");
+      eab->errCode = EASE_FAULT;
+      goto off_finish;
+    }
+  switched_on:
     drv->perswitch = 1;
     drv->dothis = NOTHING;
     drv->swtim = time(NULL);