kopia lustrzana https://gitlab.com/sane-project/backends
279 wiersze
7.1 KiB
C
279 wiersze
7.1 KiB
C
/* sane - Scanner Access Now Easy.
|
|
|
|
Copyright (C) 2002 Sergey Vlasov <vsu@altlinux.ru>
|
|
GT6801 support by Andreas Nowack <nowack.andreas@gmx.de>
|
|
Copyright (C) 2002-2007 Henning Geinitz <sane@geinitz.org>
|
|
|
|
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
|
|
* @brief Implementation of the GT6801 specific functions.
|
|
*/
|
|
|
|
#include "gt68xx_gt6801.h"
|
|
|
|
/* doesn't work with plustek scanner */
|
|
SANE_Status
|
|
gt6801_check_firmware (GT68xx_Device * dev, SANE_Bool * loaded)
|
|
{
|
|
SANE_Status status;
|
|
GT68xx_Packet req;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
req[0] = 0x50;
|
|
req[1] = 0x01;
|
|
req[2] = 0x80;
|
|
|
|
RIE (gt68xx_device_req (dev, req, req));
|
|
|
|
if (req[0] == 0x00 && req[1] == 0x50)
|
|
*loaded = SANE_TRUE;
|
|
else
|
|
*loaded = SANE_FALSE;
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* doesn't work with at least cytron scanner */
|
|
SANE_Status
|
|
gt6801_check_plustek_firmware (GT68xx_Device * dev, SANE_Bool * loaded)
|
|
{
|
|
SANE_Status status;
|
|
GT68xx_Packet req;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
|
|
req[0] = 0x73;
|
|
req[1] = 0x01;
|
|
|
|
status = gt68xx_device_small_req (dev, req, req);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
/* Assume that firmware is not loaded */
|
|
*loaded = SANE_FALSE;
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* check for correct answer */
|
|
if ((req[0] == 0) && (req[1] == 0x12) && (req[3] == 0x80))
|
|
/* req[3] is 0 if fw is not loaded, if loaded it's 0x80
|
|
* at least on my 1284u (gerhard@gjaeger.de)
|
|
*
|
|
* With the Genius scanners req[3] is 0x02/0x82. (hmg)
|
|
*/
|
|
*loaded = SANE_TRUE;
|
|
else
|
|
*loaded = SANE_FALSE;
|
|
|
|
/* Until I find out if testing for req[3] & 0x80 is save, load the firmware
|
|
everytime */
|
|
*loaded = SANE_FALSE;
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
#define MAX_DOWNLOAD_BLOCK_SIZE 64
|
|
|
|
SANE_Status
|
|
gt6801_download_firmware (GT68xx_Device * dev,
|
|
SANE_Byte * data, SANE_Word size)
|
|
{
|
|
SANE_Status status;
|
|
SANE_Byte download_buf[MAX_DOWNLOAD_BLOCK_SIZE];
|
|
SANE_Byte check_buf[MAX_DOWNLOAD_BLOCK_SIZE];
|
|
SANE_Byte *block;
|
|
SANE_Word addr, bytes_left;
|
|
GT68xx_Packet boot_req;
|
|
SANE_Word block_size = MAX_DOWNLOAD_BLOCK_SIZE;
|
|
|
|
CHECK_DEV_ACTIVE (dev, "gt6801_download_firmware");
|
|
|
|
for (addr = 0; addr < size; addr += block_size)
|
|
{
|
|
bytes_left = size - addr;
|
|
if (bytes_left > block_size)
|
|
block = data + addr;
|
|
else
|
|
{
|
|
memset (download_buf, 0, block_size);
|
|
memcpy (download_buf, data + addr, bytes_left);
|
|
block = download_buf;
|
|
}
|
|
RIE (gt68xx_device_memory_write (dev, addr, block_size, block));
|
|
RIE (gt68xx_device_memory_read (dev, 0x3f00, block_size, check_buf));
|
|
|
|
/*
|
|
* For GT6816 this was:
|
|
* if (memcmp (block, check_buf, block_size) != 0) ...
|
|
* Apparently the GT6801 does something different...
|
|
*
|
|
* hmg: For my BP 1200 CU the result is 00 09 so maybe only the 0 is
|
|
* relevant?
|
|
*/
|
|
if ((check_buf[0] != 0) && (check_buf[1] != 0x40))
|
|
{
|
|
DBG (3, "gt6801_download_firmware: mismatch at block 0x%0x\n",
|
|
addr);
|
|
return SANE_STATUS_IO_ERROR;
|
|
}
|
|
}
|
|
|
|
memset (boot_req, 0, sizeof (boot_req));
|
|
boot_req[0] = 0x69;
|
|
boot_req[1] = 0x01;
|
|
boot_req[2] = 0xc0;
|
|
boot_req[3] = 0x1c;
|
|
RIE (gt68xx_device_req (dev, boot_req, boot_req));
|
|
|
|
#if 0
|
|
/* hmg: the following isn't in my log: */
|
|
memset (boot_req, 0, sizeof (boot_req)); /* I don't know if this is needed */
|
|
boot_req[0] = 0x01;
|
|
boot_req[1] = 0x01;
|
|
RIE (gt68xx_device_small_req (dev, boot_req, boot_req));
|
|
#endif
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
gt6801_get_power_status (GT68xx_Device * dev, SANE_Bool * power_ok)
|
|
{
|
|
SANE_Status status;
|
|
GT68xx_Packet req;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
req[0] = 0x10;
|
|
req[1] = 0x01;
|
|
|
|
RIE (gt68xx_device_req (dev, req, req));
|
|
|
|
/* I don't know what power_ok = SANE_FALSE looks like... */
|
|
/* hmg: let's assume it's different from the usual 00 10 */
|
|
if (gt68xx_device_check_result (req, 0x10) == SANE_STATUS_GOOD)
|
|
*power_ok = SANE_TRUE;
|
|
else
|
|
*power_ok = SANE_FALSE;
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
SANE_Status
|
|
gt6801_lamp_control (GT68xx_Device * dev, SANE_Bool fb_lamp,
|
|
SANE_Bool ta_lamp)
|
|
{
|
|
if (!dev->model->is_cis)
|
|
{
|
|
GT68xx_Packet req;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
req[0] = 0x25;
|
|
req[1] = 0x01;
|
|
req[2] = 0;
|
|
if (fb_lamp)
|
|
req[2] |= 0x01;
|
|
if (ta_lamp)
|
|
req[2] |= 0x02;
|
|
return gt68xx_device_req (dev, req, req);
|
|
}
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
SANE_Status
|
|
gt6801_is_moving (GT68xx_Device * dev, SANE_Bool * moving)
|
|
{
|
|
/* this seems not to be supported by the scanner */
|
|
(void) dev;
|
|
|
|
*moving = SANE_FALSE;
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
|
|
SANE_Status
|
|
gt6801_carriage_home (GT68xx_Device * dev)
|
|
{
|
|
GT68xx_Packet req;
|
|
SANE_Status status;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
|
|
if (dev->model->flags & GT68XX_FLAG_MOTOR_HOME)
|
|
{
|
|
req[0] = 0x34;
|
|
req[1] = 0x01;
|
|
status = gt68xx_device_req (dev, req, req);
|
|
}
|
|
else
|
|
{
|
|
req[0] = 0x12;
|
|
req[1] = 0x01;
|
|
if ((status = gt68xx_device_req (dev, req, req)) == SANE_STATUS_GOOD)
|
|
{
|
|
RIE (gt68xx_device_check_result (req, 0x12));
|
|
memset (req, 0, sizeof (req));
|
|
req[0] = 0x24;
|
|
req[1] = 0x01;
|
|
status = gt68xx_device_req (dev, req, req);
|
|
RIE (gt68xx_device_check_result (req, 0x24));
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
SANE_Status
|
|
gt6801_stop_scan (GT68xx_Device * dev)
|
|
{
|
|
GT68xx_Packet req;
|
|
SANE_Status status;
|
|
|
|
memset (req, 0, sizeof (req));
|
|
req[0] = 0x42;
|
|
req[1] = 0x01;
|
|
|
|
RIE (gt68xx_device_req (dev, req, req));
|
|
RIE (gt68xx_device_check_result (req, 0x42));
|
|
return SANE_STATUS_GOOD;
|
|
}
|