Initial import of sane-backends version 1.0.24-1.2

1 files changed, 223 insertions, 0 deletions

diff --git a/sanei/sanei_pv8630.c b/sanei/sanei_pv8630.c
new file mode 100644
index 0000000..848558e
--- /dev/null
+++ b/sanei/sanei_pv8630.c
@@ -0,0 +1,223 @@
+/* sane - Scanner Access Now Easy.
+
+   Copyright (C) 2000 Adrian Perez Jorge
+   Copyright (C) 2001 Frank Zago
+   Copyright (C) 2001 Marcio Teixeira
+
+   This file is part of the SANE package.
+ 
+   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.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice.
+
+   Interface files for the PowerVision 8630 chip, a USB to
+   parallel converter used in many scanners.
+
+ */
+
+#include "../include/sane/config.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#define BACKEND_NAME	sanei_pv8630
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei_debug.h"
+#include "../include/sane/sanei_usb.h"
+#include "../include/sane/sanei_pv8630.h"
+
+#define DBG_error   1
+#define DBG_info    5
+
+void
+sanei_pv8630_init (void)
+{
+  DBG_INIT();
+}
+
+/* Write one control byte */
+SANE_Status
+sanei_pv8630_write_byte (int fd, SANEI_PV_Index index, SANE_Byte byte)
+{
+  SANE_Status status;
+
+  DBG(DBG_info, "sanei_pv8630_write_byte - index=%d, byte=%d\n", index, byte);
+  status =
+    sanei_usb_control_msg (fd, 0x40, PV8630_REQ_WRITEBYTE, byte, index, 0,
+			   NULL);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_write_byte error\n");
+  return status;
+}
+
+/* Read one control byte */
+SANE_Status
+sanei_pv8630_read_byte (int fd, SANEI_PV_Index index, SANE_Byte * byte)
+{
+  SANE_Status status;
+
+  DBG(DBG_info, "sanei_pv8630_read_byte - index=%d, byte=%p\n", index, byte);
+
+  status =
+    sanei_usb_control_msg (fd, 0xc0, PV8630_REQ_READBYTE, 0, index, 1, byte);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_read_byte error\n");
+  return status;
+}
+
+/* Prepare a bulk read. len is the size of the data going to be
+ * read by pv8630_bulkread(). */
+SANE_Status
+sanei_pv8630_prep_bulkread (int fd, int len)
+{
+  SANE_Status status;
+
+  status =
+    sanei_usb_control_msg (fd, 0x40, PV8630_REQ_EPPBULKREAD, len & 0xffff,
+			   len >> 16, 0, NULL);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_prep_bulkread error\n");
+  return status;
+}
+
+/* Prepare a bulk write. len is the size of the data going to be
+ * written by pv8630_bulkwrite(). */
+SANE_Status
+sanei_pv8630_prep_bulkwrite (int fd, int len)
+{
+  SANE_Status status;
+
+  status =
+    sanei_usb_control_msg (fd, 0x40, PV8630_REQ_EPPBULKWRITE, len & 0xffff,
+			   len >> 16, 0, NULL);
+
+  if (status != SANE_STATUS_GOOD)
+      DBG (DBG_error, "sanei_pv8630_prep_bulkwrite error\n");
+  return status;
+}
+
+/* Flush the buffer. */
+SANE_Status
+sanei_pv8630_flush_buffer (int fd)
+{
+  SANE_Status status;
+
+  status =
+    sanei_usb_control_msg (fd, 0x40, PV8630_REQ_FLUSHBUFFER, 0, 0, 0, NULL);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_flush_buffer error\n");
+  return status;
+}
+
+/* Do a bulk write. The length must have previously been sent via
+ * pv8630_prep_bulkwrite(). */
+SANE_Status
+sanei_pv8630_bulkwrite (int fd, const void *data, size_t * len)
+{
+  SANE_Status status;
+
+  status = sanei_usb_write_bulk (fd, (const SANE_Byte *) data, len);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_bulkwrite error\n");
+  return status;
+}
+
+/* Do a bulk read. The length must have previously been sent via
+ * pv8630_prep_bulkread(). */
+SANE_Status
+sanei_pv8630_bulkread (int fd, void *data, size_t * len)
+{
+  SANE_Status status;
+
+  status = sanei_usb_read_bulk (fd, data, len);
+
+  if (status != SANE_STATUS_GOOD)
+    DBG (DBG_error, "sanei_pv8630_bulkread error\n");
+  return status;
+}
+
+/* Expects a specific byte in a register */
+SANE_Status
+sanei_pv8630_xpect_byte (int fd, SANEI_PV_Index index, SANE_Byte value,
+			 SANE_Byte mask)
+{
+  SANE_Status status;
+  SANE_Byte s;
+
+  status = sanei_pv8630_read_byte (fd, index, &s);
+  if (status != SANE_STATUS_GOOD)
+      return status;
+
+  if ((s & mask) != value)
+    {
+      DBG (DBG_error, "sanei_pv8630_xpect_byte: expected %x, got %x\n", value,
+	   s);
+      return SANE_STATUS_IO_ERROR;
+    }
+  return SANE_STATUS_GOOD;
+}
+
+/* Wait for the status register to present a given status. A timeout value
+   is given in tenths of a second. */
+SANE_Status
+sanei_pv8630_wait_byte (int fd, SANEI_PV_Index index, SANE_Byte value,
+			SANE_Byte mask, int timeout)
+{
+  SANE_Status status;
+  SANE_Byte s;
+  int n;
+
+  for (n = 0; n < timeout; n++)
+    {
+
+      status = sanei_pv8630_read_byte (fd, index, &s);
+      if (status != SANE_STATUS_GOOD)
+	return status;
+
+      if ((s & mask) == value)
+	return SANE_STATUS_GOOD;
+
+      usleep (100000);
+    }
+
+  DBG (DBG_error, "sanei_pv8630_wait_byte: timeout waiting for %x (got %x)\n",
+       value, s);
+  return SANE_STATUS_IO_ERROR;
+}