646 lines
18 KiB
C++
646 lines
18 KiB
C++
#include "pihidevice.h"
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#include "piliterals_string.h"
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#include "piliterals_time.h"
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#ifndef WINDOWS
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# include "pidir.h"
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# include "pifile.h"
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# include "piiostream.h"
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# include <fcntl.h>
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# include <linux/input-event-codes.h>
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# include <linux/input.h>
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# include <sys/ioctl.h>
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# include <sys/time.h>
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# include <unistd.h>
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#else
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// clang-format off
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# undef _WIN32_WINNT
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# define _WIN32_WINNT 0x0600
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# include <windows.h>
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# include <setupapi.h>
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extern "C" {
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# include <hidsdi.h>
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}
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// clang-format on
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#endif
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bool PIHIDeviceInfo::match(const PIString & str) const {
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if (product.toLowerCase().contains(str.toLowerCase())) return true;
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if (path.toLowerCase().contains(str.toLowerCase())) return true;
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return false;
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}
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int PIHIDeviceInfo::axesAbsoluteCount() const {
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int ret = 0;
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for (const auto & a: axes)
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if (!a.is_relative) ++ret;
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return ret;
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}
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int PIHIDeviceInfo::axesRelativeCount() const {
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int ret = 0;
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for (const auto & a: axes)
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if (a.is_relative) ++ret;
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return ret;
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}
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void PIHIDeviceInfo::prepare() {
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axis_by_dataindex.clear();
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button_by_dataindex.clear();
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for (const auto & i: axes)
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axis_by_dataindex[i.data_index] = i;
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for (const auto & i: buttons)
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button_by_dataindex[i.data_index] = i;
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}
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PICout operator<<(PICout s, const PIHIDeviceInfo & v) {
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s.saveAndSetControls(0);
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s << "PIHIDeviceInfo(" << v.product << " (" << v.manufacturer << "), " << v.VID << ":" << v.PID
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<< ", " //<< "path \"" << v.path << "\", "
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<< v.axesAbsoluteCount() << " abs axes, " << v.axesRelativeCount() << " rel axes, " << v.buttonsCount() << " buttons)";
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s.restoreControls();
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return s;
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}
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PRIVATE_DEFINITION_START(PIHIDevice)
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#ifndef WINDOWS
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PIFile file;
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bool is_js = false;
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#else
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PIByteArray buffer;
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HANDLE deviceHandle = nullptr;
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PHIDP_PREPARSED_DATA preparsed = nullptr;
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#endif
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PRIVATE_DEFINITION_END(PIHIDevice)
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PIHIDevice::~PIHIDevice() {
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close();
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}
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bool PIHIDevice::isOpened() const {
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#ifndef WINDOWS
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return PRIVATE->file.isOpened();
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#else
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return PRIVATE->deviceHandle;
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#endif
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}
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bool PIHIDevice::open(const PIHIDeviceInfo & device) {
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close();
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cur_axes.clear();
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cur_buttons.clear();
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di = device;
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di.prepare();
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if (device.isNull()) return false;
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#ifndef WINDOWS
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if (!PRIVATE->file.open(di.path, PIIODevice::ReadOnly)) {
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piCout << "PIHIDevice::open" << di.path << "error:" << errorString();
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return false;
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}
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PRIVATE->is_js = PIFile::FileInfo(di.path).name().startsWith("js"_a);
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return true;
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#else
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PRIVATE->deviceHandle = CreateFileA(di.path.dataAscii(),
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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nullptr,
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OPEN_EXISTING,
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0,
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nullptr);
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if (PRIVATE->deviceHandle == INVALID_HANDLE_VALUE) {
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piCoutObj << "PIHIDevice::open" << di.path << "error:" << errorString();
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PRIVATE->deviceHandle = nullptr;
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return false;
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}
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HidD_GetPreparsedData(PRIVATE->deviceHandle, &PRIVATE->preparsed);
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return true;
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#endif
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}
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bool PIHIDevice::open() {
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return open(di);
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}
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void PIHIDevice::close() {
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stop();
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#ifndef WINDOWS
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PRIVATE->file.close();
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#else
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if (PRIVATE->deviceHandle) {
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CloseHandle(PRIVATE->deviceHandle);
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PRIVATE->deviceHandle = nullptr;
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}
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if (PRIVATE->preparsed) {
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HidD_FreePreparsedData(PRIVATE->preparsed);
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PRIVATE->preparsed = nullptr;
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}
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#endif
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}
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void PIHIDevice::start() {
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if (!isOpened()) return;
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PIThread::start(200_Hz);
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#ifndef WINDOWS
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#else
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#endif
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}
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void PIHIDevice::stop() {
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PIThread::stop();
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#ifdef WINDOWS
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if (PRIVATE->deviceHandle) {
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CancelIoEx(PRIVATE->deviceHandle, nullptr);
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}
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#endif
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if (!waitForFinish(1000_ms)) terminate();
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}
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void PIHIDevice::run() {
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Event e;
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#ifndef WINDOWS
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# pragma pack(push, 1)
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struct input_event {
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struct timeval time;
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ushort type;
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ushort code;
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uint value;
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};
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struct js_event {
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uint time; /* event timestamp in milliseconds */
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short value; /* value */
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uchar type; /* event type */
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uchar number; /* axis/button number */
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};
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# pragma pack(pop)
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if (PRIVATE->is_js) {
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js_event ie;
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while (PRIVATE->file.read(&ie, sizeof(ie)) == sizeof(ie)) {
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if (ie.type == 0) continue;
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bool ok = false;
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switch (ie.type) {
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case 2: {
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// piCout << ie.value;
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cur_axes[ie.number] = procDeadZone(ie.value / 32767. / 2. + 0.5);
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ok = true;
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} break;
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case 1:
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// piCout << ie.code;
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cur_buttons[ie.number] = ie.value;
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ok = true;
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break;
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default: break;
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}
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// piCout << ok << ie.type << ie.code << ie.value;
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if (!ok) continue;
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}
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} else {
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input_event ie;
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while (PRIVATE->file.read(&ie, sizeof(ie)) == sizeof(ie)) {
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if (ie.type == 0) continue;
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bool ok = false;
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switch (ie.type) {
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case 2: { // rel axis
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auto vi = di.axis_by_dataindex.value(ie.code);
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if (vi.isValid()) {
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e.type = Event::tAxisMove;
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e.axis = vi;
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e.value = static_cast<int>(ie.value);
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event(e);
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}
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ok = true;
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} break;
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case 3: { // abs axis
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auto vi = di.axis_by_dataindex.value(ie.code);
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float fv = (ie.value - vi.min) / piMaxf(1.f, (float)(vi.max - vi.min));
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cur_axes[ie.code] = procDeadZone(fv);
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ok = true;
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} break;
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case 1: // button
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// piCout << ie.code;
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cur_buttons[ie.code] = ie.value;
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ok = true;
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break;
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default: break;
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}
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// piCout << ok << ie.type << ie.code << ie.value;
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if (!ok) continue;
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}
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}
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#else
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PRIVATE->buffer.resize(di.input_report_size).fill(0);
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DWORD readed = 0;
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// piCout << "read" << PRIVATE->deviceHandle << PRIVATE->buffer.size();
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HIDP_DATA gdd[256];
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ULONG gdd_len = 256;
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if (ReadFile(PRIVATE->deviceHandle, PRIVATE->buffer.data(), PRIVATE->buffer.size_s(), &readed, nullptr) != TRUE) return;
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// piCout << readed << PRIVATE->buffer.size();
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if (readed != PRIVATE->buffer.size()) return;
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auto gd = HidP_GetData(HidP_Input, gdd, &gdd_len, PRIVATE->preparsed, (PCHAR)PRIVATE->buffer.data(), PRIVATE->buffer.size_s());
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NO_UNUSED(gd);
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// piCout << "readed" << PRIVATE->buffer << gdd_len;
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auto cbit = cur_buttons.makeIterator();
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while (cbit.next())
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cbit.value() = 0;
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for (ULONG i = 0; i < gdd_len; ++i) {
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const auto & cd(gdd[i]);
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// piCout << cd.DataIndex << cd.RawValue;
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auto vi = di.axis_by_dataindex.value(cd.DataIndex);
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if (vi.isValid()) {
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if (vi.is_relative) {
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e.type = Event::tAxisMove;
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e.axis = vi;
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e.value = static_cast<LONG>(cd.RawValue);
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event(e);
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} else {
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// auto & axis(cur_axes[cd.DataIndex]);
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float fv = (cd.RawValue - vi.min) / piMaxf(1.f, (float)(vi.max - vi.min));
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cur_axes[vi.data_index] = procDeadZone(fv);
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}
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// piCout << "axis" << vi.data_index << "->" << cur_axes[vi.data_index];
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continue;
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}
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auto bi = di.button_by_dataindex.value(cd.DataIndex);
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if (bi.isValid()) {
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cur_buttons[bi.data_index] = 1;
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// piCout << "button" << bi.data_index << "-> 1";
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continue;
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}
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}
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#endif
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auto ait = cur_axes.makeIterator();
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e.type = Event::tAxisMove;
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while (ait.next()) {
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if (ait.value() != prev_axes.value(ait.key())) {
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e.axis = di.axis_by_dataindex.value(ait.key());
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e.value = ait.value();
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event(e);
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}
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}
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prev_axes = cur_axes;
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auto bit = cur_buttons.makeIterator();
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e.type = Event::tButton;
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while (bit.next()) {
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if (bit.value() != prev_buttons.value(bit.key())) {
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e.button = di.button_by_dataindex.value(bit.key());
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e.value = bit.value();
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event(e);
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}
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}
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prev_buttons = cur_buttons;
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}
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double PIHIDevice::procDeadZone(double in) {
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double cv = (in - 0.5) * 2.;
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if (piAbsd(cv) < dead_zone) return 0.;
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if (cv < 0)
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return (cv + dead_zone) / (1. - dead_zone);
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else
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return (cv - dead_zone) / (1. - dead_zone);
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return cv;
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}
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PIVector<PIHIDeviceInfo> PIHIDevice::allDevices(bool try_open) {
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PIVector<PIHIDeviceInfo> ret;
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#ifndef WINDOWS
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auto readFile = [](const PIString & path) {
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auto ba = PIFile::readAll(path);
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PIString ret;
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for (const auto & b: ba) {
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if (!PIChar(b).isAscii()) break;
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ret += PIChar(b);
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}
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return ret.trim();
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};
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auto isDir = [](const PIFile::FileInfo & fi) {
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return fi.isDir() && !fi.flags[PIFile::FileInfo::Dot] && !fi.flags[PIFile::FileInfo::DotDot];
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};
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auto checkBit = [](const ullong & flags, ullong bit, const PIString & name) { return (flags & (1ULL << bit)) > 0; };
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PIDir hid_dir("/sys/bus/hid/devices"_a);
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auto hid_devs = hid_dir.entries();
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for (auto hd: hid_devs) {
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// piCout << d.path;
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if (!isDir(hd)) continue;
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PIDir dir_input(hd.path + "/input"_a);
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auto hid_inputs = dir_input.entries();
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for (auto hd_i: hid_inputs) {
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if (!isDir(hd_i)) continue;
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// now in /sys/bus/hid/devices/<dev>/input/input<N>
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// piCout << hd_i.path;
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PIHIDeviceInfo dev;
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dev.product = readFile(hd_i.path + "/name"_a);
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// piCout << readFile(hd_i.path + "/name"_a);
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dev.VID = readFile(hd_i.path + "/id/vendor"_a);
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dev.PID = readFile(hd_i.path + "/id/product"_a);
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dev.version = readFile(hd_i.path + "/id/version"_a);
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dev.manufacturer = readFile(hd_i.path + "/id/manufacturer"_a);
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// piCout << dev.product;
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dev.input_report_size = 24;
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PIDir dir_e(hd_i.path);
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PIStringList devs;
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auto dl_e = dir_e.entries();
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for (auto d_e: dl_e) {
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if (!d_e.isDir() || d_e.flags[PIFile::FileInfo::Dot] || d_e.flags[PIFile::FileInfo::DotDot]) continue;
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devs << d_e.name();
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}
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/*bool dev_found = false;
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for (const auto & d: devs) {
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if (d.startsWith("js"_a)) {
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dev.path = "/dev/input/"_a + d;
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dev_found = true;
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break;
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}
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}
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if (!dev_found) {*/
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// search for event<N> dir
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for (const auto & d: devs) {
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if (d.startsWith("event"_a)) {
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dev.path = "/dev/input/"_a + d;
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break;
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}
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}
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if (dev.path.isEmpty()) continue;
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if (try_open) {
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PIFile test_f(dev.path, PIIODevice::ReadOnly);
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if (test_f.isClosed()) continue;
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}
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ullong ev = readFile(hd_i.path + "/capabilities/ev"_a).toULLong(16);
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auto readAxes = [readFile, checkBit, &hd_i, &dev](const PIString & file, bool is_relative) {
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PIVector<PIHIDeviceInfo::AxisInfo> ret;
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ullong bits = readFile(hd_i.path + file).toULLong(16);
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// piCout<< PICoutManipulators::Bin << abs;
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if (bits > 0) {
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int fd = ::open(dev.path.dataAscii(), O_RDONLY);
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if (fd < 0) {
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// piCout << "Warning: can`t open" << dev.path << errorString();
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}
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PIHIDeviceInfo::AxisInfo ai;
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ai.is_relative = is_relative;
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for (int bit = 0; bit < 64; ++bit) {
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if (checkBit(bits, bit, PIString::fromNumber(bit))) {
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ai.data_index = bit;
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if (fd >= 0) {
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struct input_absinfo abs_info;
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if (ioctl(fd, EVIOCGABS(bit), &abs_info) != -1) {
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ai.min = abs_info.minimum;
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ai.max = abs_info.maximum;
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// piCout << "axis" << bit << abs_info.minimum << abs_info.maximum << abs_info.flat << abs_info.fuzz;
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} else {
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ai.min = 0;
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ai.max = 1024;
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}
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}
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ret << ai;
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}
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}
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if (fd >= 0) ::close(fd);
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}
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return ret;
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};
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dev.axes << readAxes("/capabilities/abs"_a, false) << readAxes("/capabilities/rel"_a, true);
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for (int i = 0; i < dev.axes.size_s(); ++i)
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dev.axes[i].index = i;
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PIString key_str = readFile(hd_i.path + "/capabilities/key"_a);
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PIVector<ulong> key_words;
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while (key_str.isNotEmpty()) {
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PIString w = key_str.takeWord().trimmed();
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if (w.isEmpty()) break;
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key_words.prepend(w.toULong(16));
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}
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PIBitArray key_bits((const uchar *)key_words.data(), key_words.size_s() * sizeof(ulong));
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PIHIDeviceInfo::ButtonInfo bi;
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for (uint b = 0; b < key_bits.bitSize(); ++b) {
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if (!key_bits[b]) continue;
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bi.index = dev.buttons.size_s();
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bi.code = b;
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bi.data_index = b;
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dev.buttons << bi;
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}
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if (dev.manufacturer.isEmpty()) {
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for (const auto * hwp: {"/usr/share/hwdata/usb.ids", "/var/lib/usbutils/usb.ids"}) {
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PIFile hwf(hwp, PIIODevice::ReadOnly);
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if (hwf.isClosed()) continue;
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// piCout << "search" << dev.VID << "in" << hwp;
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PIString line;
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PIIOTextStream ts(&hwf);
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while (!hwf.isEnd()) {
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line = ts.readLine();
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if (line.startsWith(dev.VID)) {
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line.takeWord();
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line.trim();
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dev.manufacturer = line;
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break;
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}
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}
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break;
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}
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}
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if (dev.isNotNull() && (dev.buttonsCount() > 0 || dev.axesCount() > 0)) ret << dev;
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}
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}
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#else
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GUID guid;
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HidD_GetHidGuid(&guid);
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HDEVINFO deviceInfoSet = SetupDiGetClassDevs(&guid, nullptr, nullptr, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
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if (deviceInfoSet == INVALID_HANDLE_VALUE) {
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piCout << "SetupDiGetClassDevs error:" << errorString();
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return ret;
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}
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SP_DEVICE_INTERFACE_DATA deviceInterfaceData;
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deviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
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for (DWORD i = 0; SetupDiEnumDeviceInterfaces(deviceInfoSet, nullptr, &guid, i, &deviceInterfaceData); ++i) {
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PIHIDeviceInfo dev;
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DWORD requiredSize = 0;
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SetupDiGetDeviceInterfaceDetail(deviceInfoSet, &deviceInterfaceData, nullptr, 0, &requiredSize, nullptr);
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PSP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData =
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reinterpret_cast<PSP_DEVICE_INTERFACE_DETAIL_DATA>(new BYTE[requiredSize]);
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PIScopeExitCall exit_call([&deviceInterfaceDetailData]() { delete[] reinterpret_cast<BYTE *>(deviceInterfaceDetailData); });
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deviceInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
|
|
if (!SetupDiGetDeviceInterfaceDetail(deviceInfoSet,
|
|
&deviceInterfaceData,
|
|
deviceInterfaceDetailData,
|
|
requiredSize,
|
|
nullptr,
|
|
nullptr)) {
|
|
piCout << "SetupDiGetDeviceInterfaceDetail error:" << errorString();
|
|
continue;
|
|
}
|
|
|
|
if (try_open) {
|
|
auto test_f = CreateFileA(deviceInterfaceDetailData->DevicePath,
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
nullptr,
|
|
OPEN_EXISTING,
|
|
0,
|
|
nullptr);
|
|
if (test_f == INVALID_HANDLE_VALUE) continue;
|
|
CloseHandle(test_f);
|
|
}
|
|
|
|
HANDLE deviceHandle =
|
|
CreateFileA(deviceInterfaceDetailData->DevicePath, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, nullptr, OPEN_EXISTING, 0, nullptr);
|
|
if (deviceHandle == INVALID_HANDLE_VALUE) {
|
|
piCout << "CreateFileA error:" << errorString();
|
|
continue;
|
|
}
|
|
|
|
// piCout << i << deviceHandle;
|
|
|
|
PHIDP_PREPARSED_DATA preparsed = nullptr;
|
|
if (HidD_GetPreparsedData(deviceHandle, &preparsed) == FALSE) {
|
|
piCout << "HidD_GetPreparsedData error:" << errorString();
|
|
continue;
|
|
}
|
|
// auto pp = PIByteArray(preparsed, 64);
|
|
// piCout << piChangedEndian(pp.dataAs<ushort>(7)) << piChangedEndian(pp.dataAs<ushort>(8)) <<
|
|
// piChangedEndian(pp.dataAs<ushort>(9));
|
|
// piCout << pp;
|
|
|
|
dev.path = deviceInterfaceDetailData->DevicePath;
|
|
|
|
HIDD_ATTRIBUTES attr;
|
|
PIByteArray str_buff(1024);
|
|
HidD_GetAttributes(deviceHandle, &attr);
|
|
dev.VID.setNumber(attr.VendorID, 16).expandLeftTo(4, '0').toLowerCase();
|
|
dev.PID.setNumber(attr.ProductID, 16).expandLeftTo(4, '0').toLowerCase();
|
|
dev.version.setNumber(attr.VersionNumber);
|
|
|
|
HIDP_CAPS caps;
|
|
HidP_GetCaps(preparsed, &caps);
|
|
dev.input_report_size = caps.InputReportByteLength;
|
|
|
|
str_buff.fill(0);
|
|
HidD_GetManufacturerString(deviceHandle, str_buff.data(), str_buff.size_s());
|
|
dev.manufacturer = PIString(reinterpret_cast<wchar_t *>(str_buff.data()));
|
|
|
|
str_buff.fill(0);
|
|
HidD_GetProductString(deviceHandle, str_buff.data(), str_buff.size_s());
|
|
dev.product = PIString(reinterpret_cast<wchar_t *>(str_buff.data()));
|
|
|
|
str_buff.fill(0);
|
|
HidD_GetSerialNumberString(deviceHandle, str_buff.data(), str_buff.size_s());
|
|
dev.serial = PIString(reinterpret_cast<wchar_t *>(str_buff.data()));
|
|
|
|
PIVector<PIHIDeviceInfo::AxisInfo> axes_abs, axes_rel;
|
|
HIDP_VALUE_CAPS value_caps[1024];
|
|
USHORT _cnt = caps.NumberInputValueCaps;
|
|
memset(value_caps, 0, sizeof(value_caps[0]) * 1024);
|
|
HidP_GetValueCaps(HidP_Input, value_caps, &_cnt, preparsed);
|
|
for (int i = 0; i < caps.NumberInputValueCaps; ++i) {
|
|
const auto & vc(value_caps[i]);
|
|
PIHIDeviceInfo::AxisInfo vi;
|
|
vi.bits = vc.BitSize;
|
|
vi.min = vc.LogicalMin;
|
|
vi.max = vc.LogicalMax;
|
|
vi.is_relative = vc.IsAbsolute == 0;
|
|
if (vi.max == vi.min) ++vi.max;
|
|
if (vc.IsRange == 1) {
|
|
int count = vc.Range.UsageMax - vc.Range.UsageMin + 1;
|
|
int cur_index = vc.Range.DataIndexMin;
|
|
for (int v = 0; v < count; ++v) {
|
|
vi.data_index = cur_index;
|
|
if (vi.is_relative)
|
|
axes_rel << vi;
|
|
else
|
|
axes_abs << vi;
|
|
++cur_index;
|
|
}
|
|
} else {
|
|
vi.data_index = vc.NotRange.DataIndex;
|
|
if (vi.is_relative)
|
|
axes_rel << vi;
|
|
else
|
|
axes_abs << vi;
|
|
}
|
|
// piCout << vc.LinkCollection << vc.LinkUsage << vc.LinkUsagePage;
|
|
}
|
|
dev.axes << axes_abs << axes_rel;
|
|
for (int i = 0; i < dev.axes.size_s(); ++i)
|
|
dev.axes[i].index = i;
|
|
|
|
HIDP_BUTTON_CAPS button_caps[1024];
|
|
_cnt = caps.NumberInputButtonCaps;
|
|
memset(button_caps, 0, sizeof(button_caps[0]) * 1024);
|
|
HidP_GetButtonCaps(HidP_Input, button_caps, &_cnt, preparsed);
|
|
for (int i = 0; i < _cnt; ++i) {
|
|
const auto & bc(button_caps[i]);
|
|
PIHIDeviceInfo::ButtonInfo bi;
|
|
// dev.values.append(PIHIDeviceInfo::ValueInfo{value_caps[i].BitSize, value_caps[i].LogicalMin, value_caps[i].LogicalMax});
|
|
if (bc.IsRange == 1) {
|
|
int count = bc.Range.UsageMax - bc.Range.UsageMin + 1;
|
|
int cur_index = bc.Range.DataIndexMin;
|
|
for (int b = 0; b < count; ++b) {
|
|
bi.index = dev.buttons.size_s();
|
|
bi.data_index = cur_index;
|
|
dev.buttons << bi;
|
|
++cur_index;
|
|
// piCout << b << (start_bit / 8) << (start_bit % 8);
|
|
}
|
|
} else {
|
|
bi.index = dev.buttons.size_s();
|
|
bi.data_index = bc.NotRange.DataIndex;
|
|
dev.buttons << bi;
|
|
// piCout << (bi.bit / 8) << (bi.bit % 8);
|
|
}
|
|
// piCout << bc.IsRange << bc.Range.UsageMin << bc.Range.UsageMax
|
|
// << bc.Range.DataIndexMin << bc.Range.DataIndexMax;
|
|
}
|
|
|
|
HidD_FreePreparsedData(preparsed);
|
|
CloseHandle(deviceHandle);
|
|
|
|
if (dev.buttonsCount() > 0 || dev.axesCount() > 0) ret << dev;
|
|
}
|
|
|
|
SetupDiDestroyDeviceInfoList(deviceInfoSet);
|
|
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
PIHIDeviceInfo PIHIDevice::findDevice(const PIString & name) {
|
|
if (name.isEmpty()) return PIHIDeviceInfo();
|
|
auto devices = PIHIDevice::allDevices();
|
|
for (auto d: devices) {
|
|
if (d.match(name)) return d;
|
|
}
|
|
return PIHIDeviceInfo();
|
|
}
|