New upstream version 1.0.31upstream/1.0.31

1 files changed, 439 insertions, 104 deletions

diff --git a/backend/hp5400_sane.c b/backend/hp5400_sane.c
index e5fdf43..b6fa6da 100644
--- a/backend/hp5400_sane.c
+++ b/backend/hp5400_sane.c
@@ -1,4 +1,5 @@
 /* sane - Scanner Access Now Easy.
+   Copyright (C) 2020 Ralph Little <skelband@gmail.com>
    Copyright (C) 2003 Martijn van Oosterhout <kleptog@svana.org>
    Copyright (C) 2003 Thomas Soumarmon <thomas.soumarmon@cogitae.net>
 
@@ -71,28 +72,6 @@
 
 #include "hp5400.h"
 
-/* includes for data transfer methods */
-#include "hp5400.h"
-
-#ifdef STANDALONE
-#include "hp5400_scanner.h"
-#endif
-
-#if defined(LINUX_USB_SUPPORT)
-  #include "hp5400_linux.c"
-#endif
-#if defined(USCANNER_SUPPORT)
-  #include "hp5400_uscanner.c"
-#endif
-#if defined(LIBUSB_SUPPORT)
-  #include "hp5400_libusb.c"
-#endif
-#if defined(LIBIEEE1284_SUPPORT)
-  #include "hp5400_ieee1284.c"
-#endif
-
-
-
 /* other definitions */
 #ifndef min
 #define min(A,B) (((A)<(B)) ? (A) : (B))
@@ -115,30 +94,91 @@ typedef enum
 {
   optCount = 0,
 
+  optDPI,
+
   optGroupGeometry,
   optTLX, optTLY, optBRX, optBRY,
-  optDPI,
 
-  optGroupImage,
+  optGroupEnhancement,
 
   optGammaTableRed,		/* Gamma Tables */
   optGammaTableGreen,
   optGammaTableBlue,
 
-  optLast,			/* Disable the offset code */
+  optGroupSensors,
 
-  optGroupMisc,
-  optOffsetX, optOffsetY
+  optSensorScanTo,
+  optSensorWeb,
+  optSensorReprint,
+  optSensorEmail,
+  optSensorCopy,
+  optSensorMoreOptions,
+  optSensorCancel,
+  optSensorPowerSave,
+  optSensorCopiesUp,
+  optSensorCopiesDown,
+  optSensorColourBW,
 
+  optSensorColourBWState,
+  optSensorCopyCount,
 
-/* put temporarily disabled options here after optLast */
-/*
-  optLamp,
-*/
+  // Unsupported as yet.
+  //optGroupMisc,
+  //optLamp,
+  //optCalibrate,
 
+  optLast,			/* Disable the offset code */
 }
 EOptionIndex;
 
+/*
+ * Array mapping (optSensor* - optGroupSensors - 1) to the bit mask of the
+ * corresponding sensor bit that we get from the scanner.
+ * All sensor bits are reported as a complete 16-bit word with individual bits set
+ * to indicate that the sensor has been activated.
+ * They seem to be latched so that they are picked up on next query and a number
+ * of bits can be set in any one query.
+ *
+ */
+
+#define SENSOR_BIT_SCAN           0x0400
+#define SENSOR_BIT_WEB            0x0200
+#define SENSOR_BIT_REPRINT        0x0002
+#define SENSOR_BIT_EMAIL          0x0080
+#define SENSOR_BIT_COPY           0x0040
+#define SENSOR_BIT_MOREOPTIONS    0x0004
+#define SENSOR_BIT_CANCEL         0x0100
+#define SENSOR_BIT_POWERSAVE      0x2000
+#define SENSOR_BIT_COPIESUP       0x0008
+#define SENSOR_BIT_COPIESDOWN     0x0020
+#define SENSOR_BIT_COLOURBW       0x0010
+
+
+uint16_t sensorMaskMap[] =
+{
+    SENSOR_BIT_SCAN,
+    SENSOR_BIT_WEB,
+    SENSOR_BIT_REPRINT,
+    SENSOR_BIT_EMAIL,
+    SENSOR_BIT_COPY,
+    SENSOR_BIT_MOREOPTIONS,
+    SENSOR_BIT_CANCEL,
+
+    // Special buttons.
+    // These affect local machine settings, but we can still detect them being pressed.
+    SENSOR_BIT_POWERSAVE,
+    SENSOR_BIT_COPIESUP,
+    SENSOR_BIT_COPIESDOWN,
+    SENSOR_BIT_COLOURBW,
+
+    // Extra entries to make the array up to the 16 possible bits.
+    0x0000,     // Unused
+    0x0000,     // Unused
+    0x0000,     // Unused
+    0x0000,     // Unused
+    0x0000      // Unused
+};
+
 typedef union
 {
   SANE_Word w;
@@ -165,6 +205,8 @@ typedef struct
 
   int fScanning;		/* TRUE if actively scanning */
   int fCanceled;
+
+  uint16_t sensorMap;           /* Contains the current unreported sensor bits. */
 }
 TScanner;
 
@@ -191,18 +233,19 @@ static const SANE_Device **_pSaneDevList = 0;
 
 /* option constraints */
 static const SANE_Range rangeGammaTable = {0, 65535, 1};
+static const SANE_Range rangeCopyCountTable = {0, 99, 1};
+static SANE_String_Const modeSwitchList[] = {
+    SANE_VALUE_SCAN_MODE_COLOR,
+    SANE_VALUE_SCAN_MODE_GRAY,
+    NULL
+};
 #ifdef SUPPORT_2400_DPI
 static const SANE_Int   setResolutions[] = {6, 75, 150, 300, 600, 1200, 2400};
 #else
 static const SANE_Int   setResolutions[] = {5, 75, 150, 300, 600, 1200};
 #endif
-static const SANE_Range rangeXmm = {0, 220, 1};
-static const SANE_Range rangeYmm = {0, 300, 1};
-static const SANE_Range rangeXoffset = {0, 20, 1};
-static const SANE_Range rangeYoffset = {0, 70, 1};
-static const SANE_Int offsetX = 5;
-static const SANE_Int offsetY = 52;
-
+static const SANE_Range rangeXmm = {0, 216, 1};
+static const SANE_Range rangeYmm = {0, 297, 1};
 
 static void _InitOptions(TScanner *s)
 {
@@ -248,8 +291,22 @@ static void _InitOptions(TScanner *s)
       pVal->w       = (SANE_Word)optLast;
       break;
 
+    case optDPI:
+      pDesc->name   = SANE_NAME_SCAN_RESOLUTION;
+      pDesc->title  = SANE_TITLE_SCAN_RESOLUTION;
+      pDesc->desc   = SANE_DESC_SCAN_RESOLUTION;
+      pDesc->unit   = SANE_UNIT_DPI;
+      pDesc->constraint_type  = SANE_CONSTRAINT_WORD_LIST;
+      pDesc->constraint.word_list = setResolutions;
+      pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
+      pVal->w       = setResolutions[1];
+      break;
+
+      //---------------------------------
     case optGroupGeometry:
-      pDesc->title  = "Geometry";
+      pDesc->name  = SANE_NAME_GEOMETRY;
+      pDesc->title  = SANE_TITLE_GEOMETRY;
+      pDesc->desc  = SANE_DESC_GEOMETRY;
       pDesc->type   = SANE_TYPE_GROUP;
       pDesc->size   = 0;
       break;
@@ -262,7 +319,7 @@ static void _InitOptions(TScanner *s)
       pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
       pDesc->constraint.range = &rangeXmm;
       pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-      pVal->w       = rangeXmm.min + offsetX;
+      pVal->w       = rangeXmm.min;
       break;
 
     case optTLY:
@@ -273,7 +330,7 @@ static void _InitOptions(TScanner *s)
       pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
       pDesc->constraint.range = &rangeYmm;
       pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-      pVal->w       = rangeYmm.min + offsetY;
+      pVal->w       = rangeYmm.min;
       break;
 
     case optBRX:
@@ -284,7 +341,7 @@ static void _InitOptions(TScanner *s)
       pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
       pDesc->constraint.range = &rangeXmm;
       pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-      pVal->w       = rangeXmm.max + offsetX;
+      pVal->w       = rangeXmm.max;
       break;
 
     case optBRY:
@@ -295,22 +352,14 @@ static void _InitOptions(TScanner *s)
       pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
       pDesc->constraint.range = &rangeYmm;
       pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-      pVal->w       = rangeYmm.max + offsetY;
-      break;
-
-    case optDPI:
-      pDesc->name   = SANE_NAME_SCAN_RESOLUTION;
-      pDesc->title  = SANE_TITLE_SCAN_RESOLUTION;
-      pDesc->desc   = SANE_DESC_SCAN_RESOLUTION;
-      pDesc->unit   = SANE_UNIT_DPI;
-      pDesc->constraint_type  = SANE_CONSTRAINT_WORD_LIST;
-      pDesc->constraint.word_list = setResolutions;
-      pDesc->cap    = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
-      pVal->w       = setResolutions[1];
+      pVal->w       = rangeYmm.max;
       break;
 
-    case optGroupImage:
-      pDesc->title  = SANE_I18N("Image");
+      //---------------------------------
+    case optGroupEnhancement:
+      pDesc->name  = SANE_NAME_ENHANCEMENT;
+      pDesc->title  = SANE_TITLE_ENHANCEMENT;
+      pDesc->desc  = SANE_DESC_ENHANCEMENT;
       pDesc->type   = SANE_TYPE_GROUP;
       pDesc->size   = 0;
       break;
@@ -348,34 +397,130 @@ static void _InitOptions(TScanner *s)
       pVal->wa      = s->aGammaTableB;
       break;
 
-    case optGroupMisc:
-      pDesc->title  = SANE_I18N("Miscellaneous");
+      //---------------------------------
+    case optGroupSensors:
+      pDesc->name  = SANE_NAME_SENSORS;
+      pDesc->title  = SANE_TITLE_SENSORS;
       pDesc->type   = SANE_TYPE_GROUP;
+      pDesc->desc   = SANE_DESC_SENSORS;
       pDesc->size   = 0;
       break;
 
-    case optOffsetX:
-      pDesc->title  = SANE_I18N("offset X");
-      pDesc->desc   = SANE_I18N("Hardware internal X position of the scanning area.");
-      pDesc->unit   = SANE_UNIT_MM;
-      pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
-      pDesc->constraint.range = &rangeXoffset;
-      pDesc->cap    = SANE_CAP_SOFT_SELECT;
-      pVal->w       = offsetX;
+    case optSensorScanTo:
+      pDesc->name   = SANE_NAME_SCAN;
+      pDesc->title  = SANE_TITLE_SCAN;
+      pDesc->desc   = SANE_DESC_SCAN;
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
       break;
 
-    case optOffsetY:
-      pDesc->title  = SANE_I18N("offset Y");
-      pDesc->desc   = SANE_I18N("Hardware internal Y position of the scanning area.");
-      pDesc->unit   = SANE_UNIT_MM;
-      pDesc->constraint_type  = SANE_CONSTRAINT_RANGE;
-      pDesc->constraint.range = &rangeYoffset;
-      pDesc->cap    = SANE_CAP_SOFT_SELECT;
-      pVal->w       = offsetY;
+    case optSensorWeb:
+      pDesc->name   = SANE_I18N("web");
+      pDesc->title  = SANE_I18N("Share-To-Web button");
+      pDesc->desc   = SANE_I18N("Scan an image and send it on the web");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorReprint:
+      pDesc->name   = SANE_I18N("reprint");
+      pDesc->title  = SANE_I18N("Reprint Photos button");
+      pDesc->desc   = SANE_I18N("Button for reprinting photos");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorEmail:
+      pDesc->name   = SANE_NAME_EMAIL;
+      pDesc->title  = SANE_TITLE_EMAIL;
+      pDesc->desc   = SANE_DESC_EMAIL;
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorCopy:
+      pDesc->name   = SANE_NAME_COPY;
+      pDesc->title  = SANE_TITLE_COPY;
+      pDesc->desc   = SANE_DESC_COPY;
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorMoreOptions:
+      pDesc->name   = SANE_I18N("more-options");
+      pDesc->title  = SANE_I18N("More Options button");
+      pDesc->desc   = SANE_I18N("Button for additional options/configuration");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorCancel:
+      pDesc->name   = SANE_NAME_CANCEL;
+      pDesc->title  = SANE_TITLE_CANCEL;
+      pDesc->desc   = SANE_DESC_CANCEL;
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorPowerSave:
+      pDesc->name   = SANE_I18N("power-save");
+      pDesc->title  = SANE_I18N("Power Save button");
+      pDesc->desc   = SANE_I18N("Puts the scanner in an energy-conservation mode");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorCopiesUp:
+      pDesc->name   = SANE_I18N("copies-up");
+      pDesc->title  = SANE_I18N("Increase Copies button");
+      pDesc->desc   = SANE_I18N("Increase the number of copies");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorCopiesDown:
+      pDesc->name   = SANE_I18N("copies-down");
+      pDesc->title  = SANE_I18N("Decrease Copies button");
+      pDesc->desc   = SANE_I18N("Decrease the number of copies");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
       break;
 
+    case optSensorColourBW:
+      pDesc->name   = SANE_I18N("color-bw");
+      pDesc->title  = SANE_I18N("Select color/BW button");
+      pDesc->desc   = SANE_I18N("Alternates between color and black/white scanning");
+      pDesc->type   = SANE_TYPE_BOOL;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_HARD_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorColourBWState:
+      pDesc->name   = SANE_I18N("color-bw-state");
+      pDesc->title  = SANE_I18N("Read color/BW button state");
+      pDesc->desc   = SANE_I18N("Reads state of BW/colour panel setting");
+      pDesc->type   = SANE_TYPE_STRING;
+      pDesc->constraint_type  = SANE_CONSTRAINT_STRING_LIST;
+      pDesc->constraint.string_list = modeSwitchList;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT | SANE_CAP_ADVANCED;
+      break;
+
+    case optSensorCopyCount:
+      pDesc->name   = SANE_I18N("copies-count");
+      pDesc->title  = SANE_I18N("Read copy count value");
+      pDesc->desc   = SANE_I18N("Reads state of copy count panel setting");
+      pDesc->type   = SANE_TYPE_INT;
+      pDesc->constraint_type = SANE_CONSTRAINT_RANGE;
+      pDesc->constraint.range = &rangeCopyCountTable;
+      pDesc->cap    = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT | SANE_CAP_ADVANCED;
+      break;
 
 #if 0
+    case optGroupMisc:
+      pDesc->title  = SANE_I18N("Miscellaneous");
+      pDesc->type   = SANE_TYPE_GROUP;
+      pDesc->size   = 0;
+      break;
+
     case optLamp:
       pDesc->name   = "lamp";
       pDesc->title  = SANE_I18N("Lamp status");
@@ -385,8 +530,7 @@ static void _InitOptions(TScanner *s)
       /* switch the lamp on when starting for first the time */
       pVal->w       = SANE_TRUE;
       break;
-#endif
-#if 0
+
     case optCalibrate:
       pDesc->name   = "calibrate";
       pDesc->title  = SANE_I18N("Calibrate");
@@ -467,7 +611,7 @@ sane_init (SANE_Int * piVersion, SANE_Auth_Callback pfnAuth)
   SANE_String_Const proper_str;
   int nline = 0;
 
-  /* prevent compiler from complaing about unused parameters */
+  /* prevent compiler from complaining about unused parameters */
   pfnAuth = pfnAuth;
 
   strcpy(usb_devfile, "/dev/usb/scanner0");
@@ -531,7 +675,6 @@ sane_init (SANE_Int * piVersion, SANE_Auth_Callback pfnAuth)
       *piVersion = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, BUILD);
     }
 
-
   return SANE_STATUS_GOOD;
 }
 
@@ -694,7 +837,7 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 	  /* Get options of type SANE_Word */
 	case optBRX:
 	case optTLX:
-	  *(SANE_Word *) pVal = s->aValues[n].w;	/* Not needed anymore  - s->aValues[optOffsetX].w; */
+	  *(SANE_Word *) pVal = s->aValues[n].w;
 	  HP5400_DBG (DBG_MSG,
 	       "sane_control_option: SANE_ACTION_GET_VALUE %d = %d\n", n,
 	       *(SANE_Word *) pVal);
@@ -702,14 +845,12 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 
 	case optBRY:
 	case optTLY:
-	  *(SANE_Word *) pVal = s->aValues[n].w;	/* Not needed anymore - - s->aValues[optOffsetY].w; */
+	  *(SANE_Word *) pVal = s->aValues[n].w;
 	  HP5400_DBG (DBG_MSG,
 	       "sane_control_option: SANE_ACTION_GET_VALUE %d = %d\n", n,
 	       *(SANE_Word *) pVal);
 	  break;
 
-	case optOffsetX:
-	case optOffsetY:
 	case optCount:
 	case optDPI:
 	  HP5400_DBG (DBG_MSG,
@@ -726,14 +867,94 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 	  memcpy (pVal, s->aValues[n].wa, s->aOptions[n].size);
 	  break;
 
+	case optSensorScanTo:
+	case optSensorWeb:
+	case optSensorReprint:
+	case optSensorEmail:
+	case optSensorCopy:
+	case optSensorMoreOptions:
+	case optSensorCancel:
+	case optSensorPowerSave:
+	case optSensorCopiesUp:
+	case optSensorCopiesDown:
+        case optSensorColourBW:
+          {
+            HP5400_DBG (DBG_MSG, "Reading sensor state\n");
+
+            uint16_t sensorMap;
+            if (GetSensors(&s->HWParams, &sensorMap) != 0)
+              {
+                HP5400_DBG (DBG_ERR,
+                     "sane_control_option: SANE_ACTION_SET_VALUE could not retrieve sensors\n");
+                return SANE_STATUS_IO_ERROR;
+
+              }
+
+            HP5400_DBG (DBG_MSG, "Sensor state=%x\n", sensorMap);
+
+            // Add read flags to what we already have so that we can report them when requested.
+            s->sensorMap |= sensorMap;
+
+            // Look up the mask based on the option number.
+            uint16_t mask = sensorMaskMap[n - optGroupSensors - 1];
+            *(SANE_Word *) pVal = (s->sensorMap & mask)? 1:0;
+            s->sensorMap &= ~mask;
+            break;
+          }
+
+        case optSensorCopyCount:
+            {
+              HP5400_DBG (DBG_MSG, "Reading copy count\n");
+
+              TPanelInfo panelInfo;
+              if (GetPanelInfo(&s->HWParams, &panelInfo) != 0)
+                {
+                  HP5400_DBG (DBG_ERR,
+                       "sane_control_option: SANE_ACTION_SET_VALUE could not retrieve panel info\n");
+                  return SANE_STATUS_IO_ERROR;
+
+                }
+
+              HP5400_DBG (DBG_MSG, "Copy count setting=%u\n", panelInfo.copycount);
+              *(SANE_Word *) pVal = panelInfo.copycount;
+              break;
+            }
+
+        case optSensorColourBWState:
+            {
+              HP5400_DBG (DBG_MSG, "Reading BW/Colour setting\n");
+
+              TPanelInfo panelInfo;
+              if (GetPanelInfo(&s->HWParams, &panelInfo) != 0)
+                {
+                  HP5400_DBG (DBG_ERR,
+                       "sane_control_option: SANE_ACTION_SET_VALUE could not retrieve panel info\n");
+                  return SANE_STATUS_IO_ERROR;
+
+                }
+
+              HP5400_DBG (DBG_MSG, "BW/Colour setting=%u\n", panelInfo.bwcolour);
+
+              // Just for safety:
+              if (panelInfo.bwcolour < 1)
+                {
+                  panelInfo.bwcolour = 1;
+                }
+              else if (panelInfo.bwcolour > 2)
+                {
+                  panelInfo.bwcolour = 2;
+                }
+              (void)strcpy((SANE_String)pVal, modeSwitchList[panelInfo.bwcolour - 1]);
+              break;
+            }
+
 #if 0
 	  /* Get options of type SANE_Bool */
 	case optLamp:
 	  GetLamp (&s->HWParams, &fLampIsOn);
 	  *(SANE_Bool *) pVal = fLampIsOn;
 	  break;
-#endif
-#if 0
+
 	case optCalibrate:
 	  /*  although this option has nothing to read,
 	     it's added here to avoid a warning when running scanimage --help */
@@ -761,26 +982,70 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 
 	case optBRX:
 	case optTLX:
-	  info |= SANE_INFO_RELOAD_PARAMS;
-	  s->ScanParams.iLines = 0;	/* Forget actual image settings */
-	  s->aValues[n].w = *(SANE_Word *) pVal;	/* Not needed anymore - + s->aValues[optOffsetX].w; */
-	  break;
-
-	case optBRY:
-	case optTLY:
-	  info |= SANE_INFO_RELOAD_PARAMS;
-	  s->ScanParams.iLines = 0;	/* Forget actual image settings */
-	  s->aValues[n].w = *(SANE_Word *) pVal;	/* Not needed anymore - + s->aValues[optOffsetY].w; */
-	  break;
-	case optDPI:
-	  info |= SANE_INFO_RELOAD_PARAMS;
-	  s->ScanParams.iLines = 0;	/* Forget actual image settings */
-#ifdef SUPPORT_2400_DPI
-	  (s->aValues[n].w) = *(SANE_Word *) pVal;
-#else
-	  (s->aValues[n].w) = min (1200, *(SANE_Word *) pVal);
-#endif
-	  break;
+	  {
+            // Check against legal values.
+	    SANE_Word value = *(SANE_Word *) pVal;
+	    if ((value < s->aOptions[n].constraint.range->min) ||
+	        (value > s->aOptions[n].constraint.range->max))
+              {
+	        HP5400_DBG (DBG_ERR,
+	                   "sane_control_option: SANE_ACTION_SET_VALUE out of range X value\n");
+                return SANE_STATUS_INVAL;
+              }
+
+            info |= SANE_INFO_RELOAD_PARAMS;
+            s->ScanParams.iLines = 0;	/* Forget actual image settings */
+            s->aValues[n].w = value;
+            break;
+	  }
+
+        case optBRY:
+        case optTLY:
+          {
+            // Check against legal values.
+            SANE_Word value = *(SANE_Word *) pVal;
+            if ((value < s->aOptions[n].constraint.range->min) ||
+                (value > s->aOptions[n].constraint.range->max))
+              {
+                HP5400_DBG (DBG_ERR,
+                           "sane_control_option: SANE_ACTION_SET_VALUE out of range Y value\n");
+                return SANE_STATUS_INVAL;
+              }
+
+            info |= SANE_INFO_RELOAD_PARAMS;
+            s->ScanParams.iLines = 0;	/* Forget actual image settings */
+            s->aValues[n].w = value;
+            break;
+          }
+
+        case optDPI:
+          {
+            // Check against legal values.
+            SANE_Word dpiValue = *(SANE_Word *) pVal;
+
+            // First check too large.
+            SANE_Word maxRes = setResolutions[setResolutions[0]];
+            if (dpiValue > maxRes)
+              {
+                dpiValue = maxRes;
+              }
+            else // Check smaller values: if not exact match, pick next higher available.
+              {
+                for (SANE_Int resIdx = 1; resIdx <= setResolutions[0]; resIdx++)
+                  {
+                    if (dpiValue <= setResolutions[resIdx])
+                      {
+                        dpiValue = setResolutions[resIdx];
+                        break;
+                      }
+                  }
+              }
+
+            info |= SANE_INFO_RELOAD_PARAMS;
+            s->ScanParams.iLines = 0;	/* Forget actual image settings */
+            (s->aValues[n].w) = dpiValue;
+            break;
+          }
 
 	case optGammaTableRed:
 	case optGammaTableGreen:
@@ -788,6 +1053,70 @@ sane_control_option (SANE_Handle h, SANE_Int n, SANE_Action Action,
 	  HP5400_DBG (DBG_MSG, "Writing gamma table\n");
 	  memcpy (s->aValues[n].wa, pVal, s->aOptions[n].size);
 	  break;
+
+        case optSensorColourBWState:
+            {
+              SANE_String bwColour = (SANE_String)pVal;
+              SANE_Word bwColourValue;
+
+              if (strcmp(bwColour, SANE_VALUE_SCAN_MODE_COLOR) == 0)
+                {
+                  bwColourValue = 1;
+                }
+              else if (strcmp(bwColour, SANE_VALUE_SCAN_MODE_GRAY) == 0)
+                {
+                  bwColourValue = 2;
+                }
+              else
+                {
+                  HP5400_DBG (DBG_ERR,
+                       "sane_control_option: SANE_ACTION_SET_VALUE invalid colour/bw mode\n");
+                  return SANE_STATUS_INVAL;
+                }
+
+              HP5400_DBG (DBG_MSG, "Setting BW/Colour state=%d\n", bwColourValue);
+
+              /*
+               * Now write it with the other panel settings back to the scanner.
+               *
+               */
+              if (SetColourBW(&s->HWParams, bwColourValue) != 0)
+                {
+                  HP5400_DBG (DBG_ERR,
+                       "sane_control_option: SANE_ACTION_SET_VALUE could not set colour/BW mode\n");
+                  return SANE_STATUS_IO_ERROR;
+                }
+              break;
+            }
+
+        case optSensorCopyCount:
+            {
+              SANE_Word copyCount = *(SANE_Word *) pVal;
+              if (copyCount < 0)
+                {
+                  copyCount = 0;
+                }
+              else if (copyCount > 99)
+                {
+                  copyCount = 99;
+                }
+
+              HP5400_DBG (DBG_MSG, "Setting Copy Count=%d\n", copyCount);
+
+              /*
+               * Now write it with the other panel settings back to the scanner.
+               *
+               */
+              if (SetCopyCount(&s->HWParams, copyCount) != 0)
+                {
+                  HP5400_DBG (DBG_ERR,
+                       "sane_control_option: SANE_ACTION_SET_VALUE could not set copy count\n");
+                  return SANE_STATUS_IO_ERROR;
+
+                }
+              break;
+            }
+
 /*
     case optLamp:
       fVal = *(SANE_Bool *)pVal;
@@ -924,6 +1253,7 @@ sane_start (SANE_Handle h)
   s->ScanParams.iLinesRead = 0;
 
   s->fScanning = TRUE;
+  s->fCanceled = FALSE;
   return SANE_STATUS_GOOD;
 }
 
@@ -944,6 +1274,11 @@ sane_read (SANE_Handle h, SANE_Byte * buf, SANE_Int maxlen, SANE_Int * len)
 
   /* nothing has been read for the moment */
   *len = 0;
+  if (!s->fScanning || s->fCanceled)
+    {
+      HP5400_DBG (DBG_MSG, "sane_read: we're not scanning.\n");
+      return SANE_STATUS_EOF;
+    }
 
 
   /* if we read all the lines return EOF */