1 files changed, 150 insertions, 0 deletions
diff --git a/include/sane/sanei_lm983x.h b/include/sane/sanei_lm983x.h
new file mode 100644
index 0000000..6b9d8c8
--- /dev/null
+++ b/include/sane/sanei_lm983x.h
@@ -0,0 +1,150 @@
+/* sane - Scanner Access Now Easy.
+
+   based on sources acquired from Plustek Inc.
+   Copyright (C) 2002-2003 Gerhard Jaeger <gerhard@gjaeger.de>
+
+   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.
+
+*/
+
+/** @file sanei_lm983x.h
+ *  Interface files for the NS LM9831/2/3 USB chip.
+ *
+ *  The National Semiconductor LM9831, LM9832, and LM9833 chips are used in
+ *  many USB scanners. Examples include Plustek and Mustek devices.
+ *
+ * @sa sanei_usb.h
+ */
+
+#ifndef sanei_lm983x_h
+#define sanei_lm983x_h
+
+#include "../include/sane/config.h"
+#include "../include/sane/sane.h"
+
+/**
+ * Read one data byte from a specific LM983x register.
+ *
+ * @param fd    - device file descriptor (SANE_Int)
+ * @param reg   - number of register (SANE_Byte)
+ * @param value - byte value to be written (SANE_Byte *)
+ *
+ * @return The SANE status code for the operation (SANE_Status):
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_IO_ERROR - system write function failed
+ * - SANE_STATUS_INVAL    - register out of range
+ */
+#define sanei_lm983x_read_byte(fd, reg, value) \
+          sanei_lm983x_read (fd, reg, value, 1, 0)
+
+/**
+ * Initialize sanei_lm983x.
+ *
+ * Currently, this function only enables the debugging functionality.
+ */
+extern void sanei_lm983x_init( void );
+
+/**
+ * Write one data byte to a specific LM983x register.
+ *
+ * @param fd    - device file descriptor
+ * @param reg   - number of register
+ * @param value - byte value to be written
+ *
+ * @return
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_IO_ERROR - system write function failed
+ * - SANE_STATUS_INVAL    - register out of range
+ */
+extern SANE_Status sanei_lm983x_write_byte( SANE_Int fd,
+                                            SANE_Byte reg, SANE_Byte value );
+
+/**
+ * Write one or more data bytes to one or more specific LM983x
+ * registers.
+ *
+ * @param fd        - device file descriptor
+ * @param reg       - number of start-register
+ * @param buffer    - buffer to be written
+ * @param len       - number of bytes to be written
+ * @param increment - SANE_TRUE enables the autoincrement of the register
+ *                    value during the write cycle, SANE_FALSE disables this
+ *
+ * @return
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_IO_ERROR - system read function failed
+ * - SANE_STATUS_INVAL    - register out of range or len field was 0
+ */
+extern SANE_Status sanei_lm983x_write( SANE_Int fd, SANE_Byte reg,
+                                       SANE_Byte *buffer, SANE_Word len,
+                                                         SANE_Bool increment );
+
+/**
+ * Read one or more data bytes from one ore more specific LM983x
+ * registers.
+ *
+ * @param fd        - device file descriptor
+ * @param reg       - number of start-register
+ * @param buffer    - buffer to receive the data
+ * @param len       - number of bytes to receive
+ * @param increment - SANE_TRUE enables the autoincrement of the register
+ *                    value during the read cylce, SANE_FALSE disables this
+ *
+ * @return
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_IO_ERROR - system read function failed
+ * - SANE_STATUS_INVAL    - register out of range
+ * - SANE_STATUS_EOF      - if nothing can't be read
+ */
+extern SANE_Status sanei_lm983x_read( SANE_Int fd, SANE_Byte reg,
+                                      SANE_Byte *buffer, SANE_Word len,
+                                                         SANE_Bool increment );
+
+/**
+ * Reset the LM983x chip.
+ *
+ * @param fd    - device file descriptor
+ * @return 
+ * - SANE_TRUE  - reset successfuly done
+ * - SANE_FALSE - reset failed
+ */
+extern SANE_Bool sanei_lm983x_reset( SANE_Int fd );
+
+#endif /* sanei_lm983x_h */
+