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/* sane - Scanner Access Now Easy.
Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
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, see <https://www.gnu.org/licenses/>.
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.
*/
#define DEBUG_DECLARE_ONLY
#include "usb_device.h"
namespace genesys {
IUsbDevice::~IUsbDevice() = default;
UsbDevice::~UsbDevice()
{
if (is_open()) {
DBG(DBG_error, "UsbDevice not closed; closing automatically");
close();
}
}
void UsbDevice::open(const char* dev_name)
{
DBG_HELPER(dbg);
if (is_open()) {
throw SaneException("device already open");
}
int device_num = 0;
dbg.status("open device");
TIE(sanei_usb_open(dev_name, &device_num));
name_ = dev_name;
device_num_ = device_num;
is_open_ = true;
}
void UsbDevice::clear_halt()
{
DBG_HELPER(dbg);
assert_is_open();
TIE(sanei_usb_clear_halt(device_num_));
}
void UsbDevice::reset()
{
DBG_HELPER(dbg);
assert_is_open();
TIE(sanei_usb_reset(device_num_));
}
void UsbDevice::close()
{
DBG_HELPER(dbg);
assert_is_open();
// we can't do much if closing fails, so we close the device on our side regardless of the
// function succeeds
int device_num = device_num_;
set_not_open();
sanei_usb_close(device_num);
}
std::uint16_t UsbDevice::get_vendor_id()
{
DBG_HELPER(dbg);
assert_is_open();
int vendor = 0;
int product = 0;
TIE(sanei_usb_get_vendor_product(device_num_, &vendor, &product));
return static_cast<std::uint16_t>(vendor);
}
std::uint16_t UsbDevice::get_product_id()
{
DBG_HELPER(dbg);
assert_is_open();
int vendor = 0;
int product = 0;
TIE(sanei_usb_get_vendor_product(device_num_, &vendor, &product));
return static_cast<std::uint16_t>(product);
}
std::uint16_t UsbDevice::get_bcd_device()
{
DBG_HELPER(dbg);
assert_is_open();
sanei_usb_dev_descriptor desc;
TIE(sanei_usb_get_descriptor(device_num_, &desc));
return desc.bcd_dev;
}
void UsbDevice::control_msg(int rtype, int reg, int value, int index, int length,
std::uint8_t* data)
{
DBG_HELPER(dbg);
assert_is_open();
TIE(sanei_usb_control_msg(device_num_, rtype, reg, value, index, length, data));
}
void UsbDevice::bulk_read(std::uint8_t* buffer, std::size_t* size)
{
DBG_HELPER(dbg);
assert_is_open();
TIE(sanei_usb_read_bulk(device_num_, buffer, size));
}
void UsbDevice::bulk_write(const std::uint8_t* buffer, std::size_t* size)
{
DBG_HELPER(dbg);
assert_is_open();
TIE(sanei_usb_write_bulk(device_num_, buffer, size));
}
void UsbDevice::assert_is_open() const
{
if (!is_open()) {
throw SaneException("device not open");
}
}
void UsbDevice::set_not_open()
{
device_num_ = 0;
is_open_ = false;
name_ = "";
}
} // namespace genesys
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