Initial import of sane-backends version 1.0.24-1.2

1 files changed, 330 insertions, 0 deletions

diff --git a/backend/niash_xfer.c b/backend/niash_xfer.c
new file mode 100644
index 0000000..a3d0ea2
--- /dev/null
+++ b/backend/niash_xfer.c
@@ -0,0 +1,330 @@
+/*
+  Copyright (C) 2001 Bertrik Sikken (bertrik@zonnet.nl)
+
+  This program 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.
+
+  This program 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 this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+  $Id$
+*/
+
+/*
+        Provides a simple interface to read and write data from the scanner,
+        without any knowledge whether it's a parallel or USB scanner
+*/
+
+#include <stdio.h>              /* printf */
+#include <errno.h>              /* better error reports */
+#include <string.h>             /* better error reports */
+
+#include "niash_xfer.h"
+
+#include "../include/sane/sanei_usb.h"
+
+/* list of supported models */
+STATIC TScannerModel ScannerModels[] = {
+  {"Hewlett-Packard", "ScanJet 3300C", 0x3F0, 0x205, eHp3300c}
+  ,
+  {"Hewlett-Packard", "ScanJet 3400C", 0x3F0, 0x405, eHp3400c}
+  ,
+  {"Hewlett-Packard", "ScanJet 4300C", 0x3F0, 0x305, eHp4300c}
+  ,
+  {"Silitek Corp.", "HP ScanJet 4300c", 0x47b, 0x1002, eHp3400c}
+  ,
+  {"Agfa", "Snapscan Touch", 0x6BD, 0x100, eAgfaTouch}
+  ,
+  {"Trust", "Office Scanner USB 19200", 0x47b, 0x1000, eAgfaTouch}
+  ,
+/* last entry all zeros */
+  {0, 0, 0, 0, 0}
+};
+
+static TFnReportDevice *_pfnReportDevice;
+static TScannerModel *_pModel;
+
+/*
+  MatchUsbDevice
+  ==============
+        Matches a given USB vendor and product id against a list of
+        supported scanners.
+
+  IN  iVendor   USB vendor ID
+          iProduct  USB product ID
+  OUT *ppModel  Pointer to TScannerModel structure
+
+  Returns TRUE if a matching USB scanner was found
+*/
+STATIC SANE_Bool
+MatchUsbDevice (int iVendor, int iProduct, TScannerModel ** ppModel)
+{
+  TScannerModel *pModels = ScannerModels;
+
+  DBG (DBG_MSG, "Matching USB device 0x%04X-0x%04X ... ", iVendor, iProduct);
+  while (pModels->pszName != NULL)
+    {
+      if ((pModels->iVendor == iVendor) && (pModels->iProduct == iProduct))
+        {
+          DBG (DBG_MSG, "found %s %s\n", pModels->pszVendor,
+               pModels->pszName);
+          *ppModel = pModels;
+          return SANE_TRUE;
+        }
+      /* next model to match */
+      pModels++;
+    }
+  DBG (DBG_MSG, "nothing found\n");
+  return SANE_FALSE;
+}
+
+/************************************************************************
+  Public functions for the SANE compilation
+************************************************************************/
+
+
+/* callback for sanei_usb_attach_matching_devices */
+static SANE_Status
+_AttachUsb (SANE_String_Const devname)
+{
+  DBG (DBG_MSG, "_AttachUsb: found %s\n", devname);
+
+  _pfnReportDevice (_pModel, (const char *) devname);
+
+  return SANE_STATUS_GOOD;
+}
+
+
+/*
+  NiashXferInit
+  ===============
+        Initialises all registered data transfer modules, which causes
+        them to report any devices found through the pfnReport callback.
+
+  IN  pfnReport Function to call to report a transfer device
+*/
+static void
+NiashXferInit (TFnReportDevice * pfnReport)
+{
+  TScannerModel *pModels = ScannerModels;
+
+  sanei_usb_init ();
+  _pfnReportDevice = pfnReport;
+
+  /* loop over all scanner models */
+  while (pModels->pszName != NULL)
+    {
+      DBG (DBG_MSG, "Looking for %s...\n", pModels->pszName);
+      _pModel = pModels;
+      if (sanei_usb_find_devices ((SANE_Int) pModels->iVendor,
+                                  (SANE_Int) pModels->iProduct,
+                                  _AttachUsb) != SANE_STATUS_GOOD)
+        {
+
+          DBG (DBG_ERR, "Error invoking sanei_usb_find_devices");
+          break;
+        }
+      pModels++;
+    }
+}
+
+
+static int
+NiashXferOpen (const char *pszName, EScannerModel * peModel)
+{
+  SANE_Status status;
+  SANE_Word vendor, product;
+  int fd;
+  TScannerModel *pModel = 0;
+
+  DBG (DBG_MSG, "Trying to open %s...\n", pszName);
+
+  status = sanei_usb_open (pszName, &fd);
+  if (status != SANE_STATUS_GOOD)
+    {
+      return -1;
+    }
+
+  status = sanei_usb_get_vendor_product (fd, &vendor, &product);
+  if (status == SANE_STATUS_GOOD)
+    {
+      MatchUsbDevice (vendor, product, &pModel);
+      *peModel = pModel->eModel;
+    }
+
+  DBG (DBG_MSG, "handle = %d\n", (int) fd);
+  return fd;
+}
+
+
+static void
+NiashXferClose (int iHandle)
+{
+  /* close usb device */
+  if (iHandle != -1)
+    {
+      sanei_usb_close (iHandle);
+    }
+}
+
+
+static void
+parusb_write_reg (int fd, unsigned char bReg, unsigned char bValue)
+{
+  sanei_usb_control_msg (fd,
+                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+                         0x0C, bReg, 0, 1, &bValue);
+}
+
+
+static void
+parusb_read_reg (int fd, unsigned char bReg, unsigned char *pbValue)
+{
+  sanei_usb_control_msg (fd,
+                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+                         0x0C, bReg, 0, 1, pbValue);
+}
+
+
+static void
+NiashWriteReg (int iHandle, unsigned char bReg, unsigned char bData)
+{
+  if (iHandle < 0)
+    {
+      DBG (DBG_MSG, "Invalid handle %d\n", iHandle);
+      return;
+    }
+
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, EPP_ADDR, bReg);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, EPP_DATA_WRITE, bData);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+}
+
+
+static void
+NiashReadReg (int iHandle, unsigned char bReg, unsigned char *pbData)
+{
+  if (iHandle < 0)
+    {
+      return;
+    }
+
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, EPP_ADDR, bReg);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x34);
+  parusb_read_reg (iHandle, EPP_DATA_READ, pbData);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+}
+
+
+static void
+NiashWriteBulk (int iHandle, unsigned char *pabBuf, int iSize)
+{
+  /*  byte  abSetup[8] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+     HP3400 probably needs 0x01, 0x01 */
+  SANE_Byte abSetup[8] = { 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  size_t size;
+
+  if (iHandle < 0)
+    {
+      return;
+    }
+
+  /* select scanner register 0x24 */
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, EPP_ADDR, 0x24);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+
+  /* tell scanner that a bulk transfer follows */
+  abSetup[4] = (iSize) & 0xFF;
+  abSetup[5] = (iSize >> 8) & 0xFF;
+  sanei_usb_control_msg (iHandle,
+                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+                         0x04, USB_SETUP, 0, 8, abSetup);
+
+  /* do the bulk write */
+  size = iSize;
+  if (sanei_usb_write_bulk (iHandle, pabBuf, &size) != SANE_STATUS_GOOD)
+    {
+      DBG (DBG_ERR, "ERROR: Bulk write failed\n");
+    }
+}
+
+
+static void
+NiashReadBulk (int iHandle, unsigned char *pabBuf, int iSize)
+{
+  SANE_Byte abSetup[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  size_t size;
+
+  if (iHandle < 0)
+    {
+      return;
+    }
+
+  /* select scanner register 0x24 */
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, EPP_ADDR, 0x24);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+
+  /* tell scanner that a bulk transfer follows */
+  abSetup[4] = (iSize) & 0xFF;
+  abSetup[5] = (iSize >> 8) & 0xFF;
+  sanei_usb_control_msg (iHandle,
+                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+                         0x04, USB_SETUP, 0, 8, abSetup);
+
+  /* do the bulk read */
+  size = iSize;
+  if (sanei_usb_read_bulk (iHandle, pabBuf, &size) != SANE_STATUS_GOOD)
+    {
+      DBG (DBG_ERR, "ERROR: Bulk read failed\n");
+    }
+}
+
+
+static void
+NiashWakeup (int iHandle)
+{
+  unsigned char abMagic[] = { 0xA0, 0xA8, 0x50, 0x58, 0x90, 0x98, 0xC0, 0xC8,
+    0x90, 0x98, 0xE0, 0xE8
+  };
+  int i;
+
+  if (iHandle < 0)
+    {
+      return;
+    }
+
+  /* write magic startup sequence */
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  for (i = 0; i < (int) sizeof (abMagic); i++)
+    {
+      parusb_write_reg (iHandle, SPP_DATA, abMagic[i]);
+    }
+
+  /* write 0x04 to scanner register 0x00 the hard way */
+  parusb_write_reg (iHandle, SPP_DATA, 0x00);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x15);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x1D);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x15);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+
+  parusb_write_reg (iHandle, SPP_DATA, 0x04);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x15);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x17);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x15);
+  parusb_write_reg (iHandle, SPP_CONTROL, 0x14);
+}