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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /sanei/sanei_pv8630.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'sanei/sanei_pv8630.c')
-rw-r--r--sanei/sanei_pv8630.c223
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;
+}