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Merge branch 'master' of github.com:signal11/hidapi

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This commit is contained in:
Alan Ott
2010-09-13 11:16:35 -04:00
parent 09cb41aada 5fa9bf37c4
commit 7650ac65b2
3 changed files with 78 additions and 23 deletions
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2
hidapi/hidapi.h
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@@ -24,7 +24,7 @@
#ifdef _WIN32
#define HID_API_EXPORT __declspec(dllexport)
#define HID_API_CALL _stdcall
#define HID_API_CALL
#else
#define HID_API_EXPORT
#define HID_API_CALL

BIN
testgui/testgui.exe
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Binary file not shown.

99
windows/hid.cpp
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@@ -22,6 +22,16 @@
#include <windows.h>
#ifdef __MINGW32__
#include <ntdef.h>
#include <winbase.h>
#endif
#ifdef __CYGWIN__
#include <ntdef.h>
#define _wcsdup wcsdup
#endif
//#define HIDAPI_USE_DDK
extern "C" {
@@ -43,8 +53,10 @@ extern "C" {
#include "hidapi.h"
// Thanks Microsoft, but I know how to use strncpy().
#pragma warning(disable:4996)
#ifdef _MSC_VER
// Thanks Microsoft, but I know how to use strncpy().
#pragma warning(disable:4996)
#endif
extern "C" {
@@ -59,6 +71,20 @@ extern "C" {
USHORT ProductID;
USHORT VersionNumber;
} HIDD_ATTRIBUTES, *PHIDD_ATTRIBUTES;
typedef USHORT USAGE;
typedef struct _HIDP_CAPS {
USAGE Usage;
USAGE UsagePage;
USHORT InputReportByteLength;
USHORT OutputReportByteLength;
USHORT FeatureReportByteLength;
USHORT Reserved[17];
USHORT fields_not_used_by_hidapi[10];
} HIDP_CAPS, *PHIDP_CAPS;
typedef char* HIDP_PREPARSED_DATA;
#define HIDP_STATUS_SUCCESS 0x0
typedef BOOLEAN (__stdcall *HidD_GetAttributes_)(HANDLE device, PHIDD_ATTRIBUTES attrib);
typedef BOOLEAN (__stdcall *HidD_GetSerialNumberString_)(HANDLE device, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_GetManufacturerString_)(HANDLE handle, PVOID buffer, ULONG buffer_len);
@@ -66,7 +92,10 @@ extern "C" {
typedef BOOLEAN (__stdcall *HidD_SetFeature_)(HANDLE handle, PVOID data, ULONG length);
typedef BOOLEAN (__stdcall *HidD_GetFeature_)(HANDLE handle, PVOID data, ULONG length);
typedef BOOLEAN (__stdcall *HidD_GetIndexedString_)(HANDLE handle, ULONG string_index, PVOID buffer, ULONG buffer_len);
typedef BOOLEAN (__stdcall *HidD_GetPreparsedData_)(HANDLE handle, HIDP_PREPARSED_DATA **preparsed_data);
typedef BOOLEAN (__stdcall *HidD_FreePreparsedData_)(HIDP_PREPARSED_DATA *preparsed_data);
typedef BOOLEAN (__stdcall *HidP_GetCaps_)(HIDP_PREPARSED_DATA *preparsed_data, HIDP_CAPS *caps);
static HidD_GetAttributes_ HidD_GetAttributes;
static HidD_GetSerialNumberString_ HidD_GetSerialNumberString;
static HidD_GetManufacturerString_ HidD_GetManufacturerString;
@@ -74,6 +103,9 @@ extern "C" {
static HidD_SetFeature_ HidD_SetFeature;
static HidD_GetFeature_ HidD_GetFeature;
static HidD_GetIndexedString_ HidD_GetIndexedString;
static HidD_GetPreparsedData_ HidD_GetPreparsedData;
static HidD_FreePreparsedData_ HidD_FreePreparsedData;
static HidP_GetCaps_ HidP_GetCaps;
static BOOLEAN initialized = FALSE;
#endif // HIDAPI_USE_DDK
@@ -81,6 +113,7 @@ extern "C" {
struct hid_device_ {
HANDLE device_handle;
BOOL blocking;
size_t input_report_length;
void *last_error_str;
DWORD last_error_num;
};
@@ -90,6 +123,7 @@ static hid_device *new_hid_device()
hid_device *dev = (hid_device*) calloc(1, sizeof(hid_device));
dev->device_handle = INVALID_HANDLE_VALUE;
dev->blocking = true;
dev->input_report_length = 0;
dev->last_error_str = NULL;
dev->last_error_num = 0;
@@ -99,15 +133,15 @@ static hid_device *new_hid_device()
static void register_error(hid_device *device, const char *op)
{
LPTSTR ptr;
LPTSTR msg=NULL;
WCHAR *ptr, *msg;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&msg, 0/*sz*/,
(LPWSTR)&msg, 0/*sz*/,
NULL);
// Get rid of the CR and LF that FormatMessage() sticks at the
@@ -140,6 +174,9 @@ static void lookup_functions()
RESOLVE(HidD_SetFeature);
RESOLVE(HidD_GetFeature);
RESOLVE(HidD_GetIndexedString);
RESOLVE(HidD_GetPreparsedData);
RESOLVE(HidD_FreePreparsedData);
RESOLVE(HidP_GetCaps);
//FreeLibrary(lib);
#undef RESOLVE
}
@@ -159,7 +196,7 @@ struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned shor
#endif
// Windows objects for interacting with the driver.
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, 0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30};
GUID InterfaceClassGuid = {0x4d1e55b2, 0xf16f, 0x11cf, {0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30} };
SP_DEVINFO_DATA devinfo_data;
SP_DEVICE_INTERFACE_DATA device_interface_data;
SP_DEVICE_INTERFACE_DETAIL_DATA_A *device_interface_detail_data = NULL;
@@ -176,7 +213,9 @@ struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned shor
// Iterate over each device in the HID class, looking for the right one.
int device_index = 0;
for (;;) {
HANDLE write_handle = INVALID_HANDLE_VALUE;
DWORD required_size = 0;
res = SetupDiEnumDeviceInterfaces(device_info_set,
NULL,
&InterfaceClassGuid,
@@ -222,7 +261,7 @@ struct hid_device_info HID_API_EXPORT * HID_API_CALL hid_enumerate(unsigned shor
//wprintf(L"HandleName: %s\n", device_interface_detail_data->DevicePath);
// Open a handle to the device
HANDLE write_handle = CreateFileA(device_interface_detail_data->DevicePath,
write_handle = CreateFileA(device_interface_detail_data->DevicePath,
GENERIC_WRITE |GENERIC_READ,
0x0, /*share mode*/
NULL,
@@ -375,6 +414,10 @@ HID_API_EXPORT hid_device * HID_API_CALL hid_open(unsigned short vendor_id, unsi
HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
{
hid_device *dev;
HIDP_CAPS caps;
HIDP_PREPARSED_DATA *pp_data = NULL;
BOOLEAN res;
NTSTATUS nt_res;
#ifndef HIDAPI_USE_DDK
if (!initialized)
@@ -396,12 +439,31 @@ HID_API_EXPORT hid_device * HID_API_CALL hid_open_path(const char *path)
if (dev->device_handle == INVALID_HANDLE_VALUE) {
// Unable to open the device.
register_error(dev, "CreateFile");
goto err;
}
// Get the Input Report length for the device.
res = HidD_GetPreparsedData(dev->device_handle, &pp_data);
if (!res) {
register_error(dev, "HidD_GetPreparsedData");
goto err;
}
nt_res = HidP_GetCaps(pp_data, &caps);
if (nt_res != HIDP_STATUS_SUCCESS) {
register_error(dev, "HidP_GetCaps");
goto err_pp_data;
}
dev->input_report_length = caps.InputReportByteLength;
HidD_FreePreparsedData(pp_data);
return dev;
err_pp_data:
HidD_FreePreparsedData(pp_data);
err:
CloseHandle(dev->device_handle);
free(dev);
return NULL;
}
return dev;
}
int HID_API_EXPORT HID_API_CALL hid_write(hid_device *dev, const unsigned char *data, size_t length)
@@ -411,10 +473,6 @@ int HID_API_EXPORT HID_API_CALL hid_write(hid_device *dev, const unsigned char *
OVERLAPPED ol;
memset(&ol, 0, sizeof(ol));
ol.Internal = 0x0;
ol.InternalHigh = 0x0;
ol.Pointer = 0x0;
ol.hEvent = 0x0;
res = WriteFile(dev->device_handle, data, length, NULL, &ol);
@@ -449,11 +507,12 @@ int HID_API_EXPORT HID_API_CALL hid_read(hid_device *dev, unsigned char *data, s
OVERLAPPED ol;
memset(&ol, 0, sizeof(ol));
ol.Internal = 0x0;
ol.InternalHigh = 0x0;
ol.Pointer = 0x0;
ol.hEvent = ev;
// Limit the data to be returned. This ensures we get
// only one report returned per call to hid_read().
length = (length < dev->input_report_length)? length: dev->input_report_length;
res = ReadFile(dev->device_handle, data, length, &bytes_read, &ol);
@@ -534,10 +593,6 @@ int HID_API_EXPORT HID_API_CALL hid_get_feature_report(hid_device *dev, unsigned
OVERLAPPED ol;
memset(&ol, 0, sizeof(ol));
ol.Internal = 0x0;
ol.InternalHigh = 0x0;
ol.Pointer = 0x0;
ol.hEvent = 0x0;
res = DeviceIoControl(dev->device_handle,
IOCTL_HID_GET_FEATURE,