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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/>.
*/
#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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