// open - open 1 or more devices
//
// Inputs:
// max = maximum number of devices to open
// vid = Vendor ID, or -1 if any
// pid = Product ID, or -1 if any
// usage_page = top level usage page, or -1 if any
// usage = top level usage number, or -1 if any
// Output:
// actual number of devices opened
//
int pjrc_rawhid::open(int max, int vid, int pid, int usage_page, int usage)
{
static IOHIDManagerRef hid_manager=NULL;
CFMutableDictionaryRef dict;
CFNumberRef num;
IOReturn ret;
hid_t *p;
int count=0;
if (first_hid) free_all_hid();
//printf("pjrc_rawhid_open, max=%d\n", max);
if (max < 1) return 0;
// Start the HID Manager
// http://developer.apple.com/technotes/tn2007/tn2187.html
if (!hid_manager) {
hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
if (hid_manager == NULL || CFGetTypeID(hid_manager) != IOHIDManagerGetTypeID()) {
if (hid_manager) CFRelease(hid_manager);
return 0;
}
}
if (vid > 0 || pid > 0 || usage_page > 0 || usage > 0) {
// Tell the HID Manager what type of devices we want
dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
if (!dict) return 0;
if (vid > 0) {
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &vid);
CFDictionarySetValue(dict, CFSTR(kIOHIDVendorIDKey), num);
CFRelease(num);
}
if (pid > 0) {
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &pid);
CFDictionarySetValue(dict, CFSTR(kIOHIDProductIDKey), num);
CFRelease(num);
}
if (usage_page > 0) {
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage_page);
CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsagePageKey), num);
CFRelease(num);
}
if (usage > 0) {
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage);
CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsageKey), num);
CFRelease(num);
}
IOHIDManagerSetDeviceMatching(hid_manager, dict);
CFRelease(dict);
} else {
IOHIDManagerSetDeviceMatching(hid_manager, NULL);
}
// set up a callbacks for device attach & detach
IOHIDManagerScheduleWithRunLoop(hid_manager, CFRunLoopGetCurrent(),
kCFRunLoopDefaultMode);
IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, attach_callback, NULL);
IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
if (ret != kIOReturnSuccess) {
printf("Could not start IOHIDManager");
IOHIDManagerUnscheduleFromRunLoop(hid_manager,
CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
CFRelease(hid_manager);
return 0;
}
printf("run loop\n");
// let it do the callback for all devices
while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
// count up how many were added by the callback
for (p = first_hid; p; p = p->next) count++;
return count;
}
// rawhid_open - open 1 or more devices
//
// Inputs:
// max = maximum number of devices to open
// vid = Vendor ID, or -1 if any
// pid = Product ID, or -1 if any
// usage_page = top level usage page, or -1 if any
// usage = top level usage number, or -1 if any
// Output:
// actual number of devices opened
//
int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
{
struct usb_bus *bus;
struct usb_device *dev;
struct usb_interface *iface;
struct usb_interface_descriptor *desc;
struct usb_endpoint_descriptor *ep;
usb_dev_handle *u;
uint8_t buf[1024], *p;
int i, n, len, tag, ep_in, ep_out, count=0, claimed;
uint32_t val=0, parsed_usage, parsed_usage_page;
hid_t *hid;
if (first_hid) free_all_hid();
printf("rawhid_open, max=%d\n", max);
if (max < 1) return 0;
usb_init();
usb_find_busses();
usb_find_devices();
for (bus = usb_get_busses(); bus; bus = bus->next) {
for (dev = bus->devices; dev; dev = dev->next) {
if (vid > 0 && dev->descriptor.idVendor != vid) continue;
if (pid > 0 && dev->descriptor.idProduct != pid) continue;
if (!dev->config) continue;
if (dev->config->bNumInterfaces < 1) continue;
printf("device: vid=%04X, pic=%04X, with %d iface\n",
dev->descriptor.idVendor,
dev->descriptor.idProduct,
dev->config->bNumInterfaces);
iface = dev->config->interface;
u = NULL;
claimed = 0;
for (i=0; i<dev->config->bNumInterfaces && iface; i++, iface++) {
desc = iface->altsetting;
if (!desc) continue;
printf(" type %d, %d, %d\n", desc->bInterfaceClass,
desc->bInterfaceSubClass, desc->bInterfaceProtocol);
if (desc->bInterfaceClass != 3) continue;
if (desc->bInterfaceSubClass != 0) continue;
if (desc->bInterfaceProtocol != 0) continue;
ep = desc->endpoint;
ep_in = ep_out = 0;
for (n = 0; n < desc->bNumEndpoints; n++, ep++) {
if (ep->bEndpointAddress & 0x80) {
if (!ep_in) ep_in = ep->bEndpointAddress & 0x7F;
printf(" IN endpoint %d\n", ep_in);
} else {
if (!ep_out) ep_out = ep->bEndpointAddress;
printf(" OUT endpoint %d\n", ep_out);
}
}
if (!ep_in) continue;
if (!u) {
u = usb_open(dev);
if (!u) {
printf(" unable to open device\n");
break;
}
}
printf(" hid interface (generic)\n");
if (usb_get_driver_np(u, i, (char *)buf, sizeof(buf)) >= 0) {
printf(" in use by driver \"%s\"\n", buf);
if (usb_detach_kernel_driver_np(u, i) < 0) {
printf(" unable to detach from kernel\n");
continue;
}
}
if (usb_claim_interface(u, i) < 0) {
printf(" unable claim interface %d\n", i);
continue;
}
len = usb_control_msg(u, 0x81, 6, 0x2200, i, (char *)buf, sizeof(buf), 250);
printf(" descriptor, len=%d\n", len);
if (len < 2) {
usb_release_interface(u, i);
continue;
}
p = buf;
parsed_usage_page = parsed_usage = 0;
while ((tag = hid_parse_item(&val, &p, buf + len)) >= 0) {
printf(" tag: %X, val %X\n", tag, val);
if (tag == 4) parsed_usage_page = val;
if (tag == 8) parsed_usage = val;
if (parsed_usage_page && parsed_usage) break;
}
if ((!parsed_usage_page) || (!parsed_usage) ||
(usage_page > 0 && parsed_usage_page != usage_page) ||
(usage > 0 && parsed_usage != usage)) {
usb_release_interface(u, i);
continue;
}
hid = (struct hid_struct *)malloc(sizeof(struct hid_struct));
if (!hid) {
usb_release_interface(u, i);
continue;
}
hid->usb = u;
hid->iface = i;
hid->ep_in = ep_in;
hid->ep_out = ep_out;
hid->open = 1;
add_hid(hid);
claimed++;
count++;
if (count >= max) return count;
}
if (u && !claimed) usb_close(u);
}
}
return count;
}
// open - open 1 or more devices
//
// Inputs:
// max = maximum number of devices to open
// vid = Vendor ID, or -1 if any
// pid = Product ID, or -1 if any
// usage_page = top level usage page, or -1 if any
// usage = top level usage number, or -1 if any
// Output:
// actual number of devices opened
//
int pjrc_rawhid::open(int max, int vid, int pid, int usage_page, int usage)
{
GUID guid;
HDEVINFO info;
DWORD index=0, reqd_size;
SP_DEVICE_INTERFACE_DATA iface;
SP_DEVICE_INTERFACE_DETAIL_DATA *details;
HIDD_ATTRIBUTES attrib;
PHIDP_PREPARSED_DATA hid_data;
HIDP_CAPS capabilities;
HANDLE h;
BOOL ret;
hid_t *hid;
int count=0;
if (first_hid) free_all_hid();
if (max < 1) return 0;
if (!rx_event)
{
rx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
tx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
InitializeCriticalSection(&rx_mutex);
InitializeCriticalSection(&tx_mutex);
}
HidD_GetHidGuid(&guid);
info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if (info == INVALID_HANDLE_VALUE) return 0;
for (index=0; 1 ;index++)
{
iface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
ret = SetupDiEnumDeviceInterfaces(info, NULL, &guid, index, &iface);
if (!ret) return count;
SetupDiGetInterfaceDeviceDetail(info, &iface, NULL, 0, &reqd_size, NULL);
details = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(reqd_size);
if (details == NULL) continue;
memset(details, 0, reqd_size);
details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
ret = SetupDiGetDeviceInterfaceDetail(info, &iface, details, reqd_size, NULL, NULL);
if (!ret)
{
free(details);
continue;
}
h = CreateFile(details->DevicePath, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
if (h == INVALID_HANDLE_VALUE)
{
DWORD err = GetLastError();
// I get ERROR_ACCESS_DENIED with most/all my input devices (mice/trackballs/tablet).
// Let's not log it :)
if (err == ERROR_ACCESS_DENIED)
{
free(details);
continue;
}
// qDebug wipes the GetLastError() it seems, so do that after print_win32_err().
print_win32_err(err);
qDebug() << "Problem opening handle, path: " << QString().fromWCharArray(details->DevicePath);
free(details);
continue;
}
free(details);
attrib.Size = sizeof(HIDD_ATTRIBUTES);
ret = HidD_GetAttributes(h, &attrib);
//printf("vid: %4x\n", attrib.VendorID);
if (!ret || (vid > 0 && attrib.VendorID != vid) ||
(pid > 0 && attrib.ProductID != pid) ||
!HidD_GetPreparsedData(h, &hid_data))
{
CloseHandle(h);
continue;
}
if (!HidP_GetCaps(hid_data, &capabilities) ||
(usage_page > 0 && capabilities.UsagePage != usage_page) ||
(usage > 0 && capabilities.Usage != usage))
{
HidD_FreePreparsedData(hid_data);
CloseHandle(h);
continue;
}
HidD_FreePreparsedData(hid_data);
hid = (struct hid_struct *)malloc(sizeof(struct hid_struct));
if (!hid)
{
CloseHandle(h);
continue;
}
// COMMTIMEOUTS CommTimeouts;
// CommTimeouts.ReadIntervalTimeout = 100; // 100ms
// CommTimeouts.ReadTotalTimeoutConstant = 5; // ms
// CommTimeouts.ReadTotalTimeoutMultiplier = 1; //
// CommTimeouts.WriteTotalTimeoutConstant = 5; // ms
// CommTimeouts.WriteTotalTimeoutMultiplier = 1; //
// if (!SetCommTimeouts(h, &CommTimeouts))
// {
//// DWORD err = GetLastError();
//
// }
qDebug("Open: Handle address: %li for num: %i", (long int) h, count);
hid->handle = h;
add_hid(hid);
count++;
if (count >= max) return count;
}
return count;
}
// rawhid_open - open 1 or more devices
//
// Inputs:
// max = maximum number of devices to open
// vid = Vendor ID, or -1 if any
// pid = Product ID, or -1 if any
// usage_page = top level usage page, or -1 if any
// usage = top level usage number, or -1 if any
// Output:
// actual number of devices opened
//
int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
{
//***
kern_return_t result;
mach_port_t masterPort;
CFMutableDictionaryRef matchingDict;
CFRunLoopSourceRef runLoopSource;
//Create a master port for communication with the I/O Kit
result = IOMasterPort(MACH_PORT_NULL, &masterPort);
if (result || !masterPort)
{
return -1;
}
//To set up asynchronous notifications, create a notification port and
//add its run loop event source to the programs run loop
gNotifyPort = IONotificationPortCreate(masterPort);
runLoopSource = IONotificationPortGetRunLoopSource(gNotifyPort);
CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource,
kCFRunLoopDefaultMode);
// ***
/*
IOServiceAddMatchingNotification(
gNotifyPort,
kIOFirstMatchNotification,
matchingDict,
attach_callback,
NULL,
&gAddedIter);
*/
// ***
static IOHIDManagerRef hid_manager=NULL;
CFMutableDictionaryRef dict;
CFNumberRef num;
IOReturn ret;
hid_t *p;
int count=0;
//fprintf(stderr,"fprintf rawhid_open\n");
if (first_hid) free_all_hid();
//printf("rawhid_open, max=%d\n", max);
//fflush (stdout);
if (max < 1) return 0;
// Start the HID Manager
// http://developer.apple.com/technotes/tn2007/tn2187.html
if (!hid_manager) {
hid_manager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
if (hid_manager == NULL || CFGetTypeID(hid_manager) != IOHIDManagerGetTypeID()) {
if (hid_manager) CFRelease(hid_manager);
return 0;
}
}
if (vid > 0 || pid > 0 || usage_page > 0 || usage > 0) {
// Tell the HID Manager what type of devices we want
dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
&kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
if (!dict) return 0;
if (vid > 0)
{
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &vid);
CFDictionarySetValue(dict, CFSTR(kIOHIDVendorIDKey), num);
CFRelease(num);
}
if (pid > 0)
{
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &pid);
CFDictionarySetValue(dict, CFSTR(kIOHIDProductIDKey), num);
CFRelease(num);
}
if (usage_page > 0)
{
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage_page);
CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsagePageKey), num);
CFRelease(num);
}
if (usage > 0)
{
num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &usage);
CFDictionarySetValue(dict, CFSTR(kIOHIDPrimaryUsageKey), num);
CFRelease(num);
}
IOHIDManagerSetDeviceMatching(hid_manager, dict);
CFRelease(dict);
}
else
{
IOHIDManagerSetDeviceMatching(hid_manager, NULL);
}
// set up a callbacks for device attach & detach
IOHIDManagerScheduleWithRunLoop(hid_manager, CFRunLoopGetCurrent(),
kCFRunLoopDefaultMode);
IOHIDManagerRegisterDeviceMatchingCallback(hid_manager, attach_callback, NULL);
IOHIDManagerRegisterDeviceRemovalCallback(hid_manager, detach_callback, NULL);
ret = IOHIDManagerOpen(hid_manager, kIOHIDOptionsTypeNone);
if (ret != kIOReturnSuccess)
{
IOHIDManagerUnscheduleFromRunLoop(hid_manager,
CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
CFRelease(hid_manager);
return 0;
}
printf("run loop\n");
// let it do the callback for all devices
while (CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, true) == kCFRunLoopRunHandledSource) ;
// count up how many were added by the callback
for (p = first_hid; p; p = p->next) count++;
usbstatus=count;
return count;
}
// rawhid_open - open 1 or more devices
//
// Inputs:
// max = maximum number of devices to open
// vid = Vendor ID, or -1 if any
// pid = Product ID, or -1 if any
// usage_page = top level usage page, or -1 if any
// usage = top level usage number, or -1 if any
// Output:
// actual number of devices opened
//
int rawhid_open(int max, int vid, int pid, int usage_page, int usage)
{
GUID guid;
HDEVINFO info;
DWORD index=0, reqd_size;
SP_DEVICE_INTERFACE_DATA iface;
SP_DEVICE_INTERFACE_DETAIL_DATA *details;
HIDD_ATTRIBUTES attrib;
PHIDP_PREPARSED_DATA hid_data;
HIDP_CAPS capabilities;
HANDLE h;
BOOL ret;
hid_t *hid;
int count=0;
if (first_hid) free_all_hid();
if (max < 1) return 0;
if (!rx_event) {
rx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
tx_event = CreateEvent(NULL, TRUE, TRUE, NULL);
InitializeCriticalSection(&rx_mutex);
InitializeCriticalSection(&tx_mutex);
}
HidD_GetHidGuid(&guid);
info = SetupDiGetClassDevs(&guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if (info == INVALID_HANDLE_VALUE) return 0;
for (index=0; 1 ;index++) {
iface.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
ret = SetupDiEnumDeviceInterfaces(info, NULL, &guid, index, &iface);
if (!ret) return count;
SetupDiGetInterfaceDeviceDetail(info, &iface, NULL, 0, &reqd_size, NULL);
details = (SP_DEVICE_INTERFACE_DETAIL_DATA *)malloc(reqd_size);
if (details == NULL) continue;
memset(details, 0, reqd_size);
details->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
ret = SetupDiGetDeviceInterfaceDetail(info, &iface, details,
reqd_size, NULL, NULL);
if (!ret) {
free(details);
continue;
}
h = CreateFile(details->DevicePath, GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
free(details);
if (h == INVALID_HANDLE_VALUE) continue;
attrib.Size = sizeof(HIDD_ATTRIBUTES);
ret = HidD_GetAttributes(h, &attrib);
//printf("vid: %4x\n", attrib.VendorID);
if (!ret || (vid > 0 && attrib.VendorID != vid) ||
(pid > 0 && attrib.ProductID != pid) ||
!HidD_GetPreparsedData(h, &hid_data)) {
CloseHandle(h);
continue;
}
if (!HidP_GetCaps(hid_data, &capabilities) ||
(usage_page > 0 && capabilities.UsagePage != usage_page) ||
(usage > 0 && capabilities.Usage != usage)) {
HidD_FreePreparsedData(hid_data);
CloseHandle(h);
continue;
}
HidD_FreePreparsedData(hid_data);
hid = (struct hid_struct *)malloc(sizeof(struct hid_struct));
if (!hid) {
CloseHandle(h);
continue;
}
hid->handle = h;
hid->open = 1;
add_hid(hid);
count++;
if (count >= max) return count;
}
return count;
}
