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deviceusb.cc
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deviceusb.cc
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#include <exception>
#include <iostream>
#include <QDebug>
#include <QList>
#include <QByteArray>
#include <libusb.h>
#include "libusb_wrappers.h"
#include "keyboardcomm.h"
#include "deviceusb.h"
static const struct {
uint16_t vid;
uint16_t pid;
} valid_ids[] = {
{0x16c0, 0x27db}, // VUSB IDs used by Kinesis modification
{0x1d50, 0x6028}, // IDs used by Ergodox
{0x16c0, 0x27dc}, // VUSB IDs used by ugboard
};
bool DeviceUSB::isValidID(const uint16_t vid, const uint16_t pid) {
const int n_ids = sizeof(valid_ids) / sizeof(*valid_ids);
for(int i = 0; i < n_ids; ++i) {
if (vid == valid_ids[i].vid && pid == valid_ids[i].pid)
return true;
}
return false;
}
QString DeviceUSB::getDeviceName(USBDevice* dev) {
libusb_device_descriptor desc;
LIBUSBCheckResult(
libusb_get_device_descriptor(*dev, &desc));
USBDeviceHandle devHandle(*dev);
char productBuf[256] = {0};
LIBUSBCheckResult(
libusb_get_string_descriptor_ascii(devHandle, desc.iProduct,
(unsigned char*) productBuf,
sizeof(productBuf) - 1));
return QString(productBuf);
}
void DeviceUSB::enumerateTo(KeyboardComm::DeviceList* target, libusb_context* context) {
libusb_device **deviceList = NULL;
int cnt = LIBUSBCheckResult(
libusb_get_device_list(context, &deviceList));
for (int i = 0; i < cnt; i++) {
libusb_device *dev = deviceList[i];
try {
libusb_device_descriptor desc;
LIBUSBCheckResult(
libusb_get_device_descriptor(dev, &desc));
if (!isValidID(desc.idVendor, desc.idProduct))
continue;
const unsigned char requiredPrefix[] = "andreae.gen.nz:";
unsigned char buf[sizeof(requiredPrefix)] = {0};
int length = LIBUSBCheckResult(
libusb_get_string_descriptor_ascii(
USBDeviceHandle(dev), desc.iSerialNumber, buf, sizeof(buf) - 1));
if (strncmp(reinterpret_cast<const char*>(requiredPrefix),
reinterpret_cast<const char*>(buf),
length) != 0)
continue;
target->push_back(QSharedPointer<Device>{new DeviceUSB{dev}});
} catch (LIBUSBError& e) {
qWarning() << "LIBUSBError when enumerating: " << e.what();
}
}
libusb_free_device_list(deviceList, 1);
}
void DeviceSessionUSB::doVendorRequest(uint8_t request, Direction dir,
char *buf, int bufLen,
uint16_t wValue, uint16_t wIndex)
{
int returnSize = LIBUSBCheckResult(
libusb_control_transfer(
mDeviceHandle,
LIBUSB_REQUEST_TYPE_VENDOR
| LIBUSB_RECIPIENT_DEVICE
| (dir == Read ? LIBUSB_ENDPOINT_IN : LIBUSB_ENDPOINT_OUT),
request,
wValue,
wIndex,
(unsigned char*) buf, bufLen,
mTimeout));
if (returnSize != bufLen)
throw DeviceError(DeviceError::Underflow);
}
QByteArray DeviceSessionUSB::getMapping() {
QByteArray mapping(getMappingSize(), 0);
doVendorRequest(READ_MAPPING, Read, mapping);
return mapping;
}
void DeviceSessionUSB::setMapping(const QByteArray& mapping)
{
doVendorRequest(WRITE_MAPPING, Write, const_cast<QByteArray&>(mapping));
}
QByteArray DeviceSessionUSB::getDefaultMapping() {
QByteArray mapping(getMappingSize(), 0);
doVendorRequest(READ_DEFAULT_MAPPING, Read, mapping);
return mapping;
}
QByteArray DeviceSessionUSB::getPrograms() {
QByteArray programs(getProgramSpaceRaw(), 0);
doVendorRequest(READ_PROGRAMS, Read, programs);
return programs;
}
void DeviceSessionUSB::setPrograms(const QByteArray& programs) {
doVendorRequest(WRITE_PROGRAMS, Write, const_cast<QByteArray&>(programs));
}
QByteArray DeviceSessionUSB::getMacroIndex() {
QByteArray macroIndex(getMacroIndexSize(), 0);
doVendorRequest(READ_MACRO_INDEX, Read, macroIndex);
return macroIndex;
}
void DeviceSessionUSB::setMacroIndex(const QByteArray& macroIndex) {
doVendorRequest(WRITE_MACRO_INDEX, Write, const_cast<QByteArray&>(macroIndex));
}
QByteArray DeviceSessionUSB::getMacroStorage() {
QByteArray macroStorage(getMacroStorageSize(), 0);
doVendorRequest(READ_MACRO_STORAGE, Read, macroStorage);
return macroStorage;
}
void DeviceSessionUSB::setMacroStorage(const QByteArray& macroStorage) {
doVendorRequest(WRITE_MACRO_STORAGE, Write, const_cast<QByteArray&>(macroStorage));
}
void DeviceSessionUSB::reset() {
doVendorRequest(RESET_DEFAULTS, Write, nullptr, 0);
}
void DeviceSessionUSB::resetFully() {
doVendorRequest(RESET_FULLY, Write, nullptr, 0);
}