kopia lustrzana https://gitlab.com/sane-project/backends
147 wiersze
3.4 KiB
C++
147 wiersze
3.4 KiB
C++
/* sane - Scanner Access Now Easy.
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Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#define DEBUG_DECLARE_ONLY
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#include "usb_device.h"
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namespace genesys {
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IUsbDevice::~IUsbDevice() = default;
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UsbDevice::~UsbDevice()
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{
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if (is_open()) {
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DBG(DBG_error, "UsbDevice not closed; closing automatically");
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close();
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}
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}
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void UsbDevice::open(const char* dev_name)
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{
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DBG_HELPER(dbg);
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if (is_open()) {
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throw SaneException("device already open");
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}
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int device_num = 0;
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dbg.status("open device");
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TIE(sanei_usb_open(dev_name, &device_num));
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name_ = dev_name;
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device_num_ = device_num;
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is_open_ = true;
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}
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void UsbDevice::clear_halt()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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TIE(sanei_usb_clear_halt(device_num_));
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}
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void UsbDevice::reset()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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TIE(sanei_usb_reset(device_num_));
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}
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void UsbDevice::close()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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// we can't do much if closing fails, so we close the device on our side regardless of the
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// function succeeds
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int device_num = device_num_;
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set_not_open();
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sanei_usb_close(device_num);
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}
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std::uint16_t UsbDevice::get_vendor_id()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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int vendor = 0;
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int product = 0;
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TIE(sanei_usb_get_vendor_product(device_num_, &vendor, &product));
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return static_cast<std::uint16_t>(vendor);
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}
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std::uint16_t UsbDevice::get_product_id()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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int vendor = 0;
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int product = 0;
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TIE(sanei_usb_get_vendor_product(device_num_, &vendor, &product));
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return static_cast<std::uint16_t>(product);
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}
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std::uint16_t UsbDevice::get_bcd_device()
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{
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DBG_HELPER(dbg);
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assert_is_open();
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sanei_usb_dev_descriptor desc;
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TIE(sanei_usb_get_descriptor(device_num_, &desc));
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return desc.bcd_dev;
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}
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void UsbDevice::control_msg(int rtype, int reg, int value, int index, int length,
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std::uint8_t* data)
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{
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DBG_HELPER(dbg);
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assert_is_open();
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TIE(sanei_usb_control_msg(device_num_, rtype, reg, value, index, length, data));
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}
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void UsbDevice::bulk_read(std::uint8_t* buffer, std::size_t* size)
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{
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DBG_HELPER(dbg);
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assert_is_open();
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TIE(sanei_usb_read_bulk(device_num_, buffer, size));
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}
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void UsbDevice::bulk_write(const std::uint8_t* buffer, std::size_t* size)
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{
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DBG_HELPER(dbg);
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assert_is_open();
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TIE(sanei_usb_write_bulk(device_num_, buffer, size));
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}
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void UsbDevice::assert_is_open() const
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{
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if (!is_open()) {
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throw SaneException("device not open");
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}
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}
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void UsbDevice::set_not_open()
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{
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device_num_ = 0;
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is_open_ = false;
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name_ = "";
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}
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} // namespace genesys
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