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1355 lines
41 KiB
1355 lines
41 KiB
/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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pnp.c
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Abstract:
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This module contains the code
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for finding, adding, removing, and identifying hid devices.
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Environment:
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Kernel & user mode
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Revision History:
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Nov-96 : Created by Kenneth D. Ray
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--*/
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#include <basetyps.h>
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#include <stdlib.h>
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#include <wtypes.h>
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#include <setupapi.h>
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#include "hidsdi.h"
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#include "hid.h"
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#include "mylog.h"
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#include "mymem.h"
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PHID_DEVICE gpHidDevices = NULL;
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LONG
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OpenHidDevice (
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IN HDEVINFO HardwareDeviceInfo,
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IN PSP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
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IN OUT PHID_DEVICE HidDevice
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);
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VOID
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CloseHidDevice (
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IN OUT PHID_DEVICE HidDevice
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);
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VOID
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AddHidDevice (
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IN PHID_DEVICE HidDevice
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);
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VOID
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RemoveHidDevice (
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IN PHID_DEVICE HidDevice
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);
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PHID_DEVICE
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FindHidDeviceByDevInst (
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IN DWORD DevInst
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);
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LONG
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FindKnownHidDevices (
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OUT PHID_DEVICE *pHidDevices,
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OUT PULONG pNumberHidDevices
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)
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/*++
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Routine Description:
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Do the required PnP things in order to find all the HID devices in
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the system at this time.
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--*/
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{
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HDEVINFO hardwareDeviceInfo;
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SP_DEVICE_INTERFACE_DATA hidDeviceInterfaceData;
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SP_DEVINFO_DATA hidDeviceInfoData;
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ULONG i;
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PHID_DEVICE hidDevice;
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GUID hidGuid;
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LONG lResult;
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LOG((PHONESP_TRACE, "FindKnownHidDevices - enter"));
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HidD_GetHidGuid (&hidGuid);
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*pHidDevices = NULL;
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*pNumberHidDevices = 0;
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//
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// Open a handle to the dev info list
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//
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hardwareDeviceInfo = SetupDiGetClassDevs (
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&hidGuid,
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NULL, // Define no enumerator (global)
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NULL, // Define no
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(DIGCF_PRESENT | // Only Devices present
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DIGCF_INTERFACEDEVICE)); // Function class devices.
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if(hardwareDeviceInfo == INVALID_HANDLE_VALUE)
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{
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return GetLastError();
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}
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//
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// Mark all existing hid devices as removed. Any of these that are still present
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// will have this mark removed during enumeration below.
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//
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hidDevice = gpHidDevices;
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while (hidDevice != NULL)
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{
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//
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// Include existing devices in out count of hid devices
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//
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(*pNumberHidDevices)++;
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hidDevice->bRemoved = TRUE;
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hidDevice = hidDevice->Next;
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}
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i = 0;
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hidDeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
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while (SetupDiEnumDeviceInterfaces (hardwareDeviceInfo,
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0, // No care about specific PDOs
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&hidGuid,
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i++,
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&hidDeviceInterfaceData))
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{
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//
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// We enumerated a hid device, first lets get the device instance
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//
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hidDeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
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if (SetupDiGetDeviceInterfaceDetail(hardwareDeviceInfo,
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&hidDeviceInterfaceData,
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NULL,
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0,
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NULL,
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&hidDeviceInfoData)
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// ERROR_INSUFFICIENT_BUFFER is alright because we passed in NULL
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// for the device interface detail data structure.
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|| (GetLastError() == ERROR_INSUFFICIENT_BUFFER) )
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - device instance %08x", hidDeviceInfoData.DevInst ));
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//
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// Check that the hid device is not already in our list
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//
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if ((hidDevice = FindHidDeviceByDevInst(hidDeviceInfoData.DevInst)) == NULL)
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{
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//
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// This is a new hid device
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//
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// Allocate a HID_DEVICE structure
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//
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hidDevice = (PHID_DEVICE) MemAlloc(sizeof(HID_DEVICE));
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if(hidDevice == NULL)
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - unable to allocate hid device"));
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SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
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return ERROR_OUTOFMEMORY;
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}
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ZeroMemory(hidDevice, sizeof(HID_DEVICE));
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//
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// Mark this as new, so we can create a new phone for it later
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//
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hidDevice->bNew = TRUE;
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hidDevice->dwDevInst = hidDeviceInfoData.DevInst;
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//
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// Open the hid device
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//
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lResult = OpenHidDevice (hardwareDeviceInfo, &hidDeviceInterfaceData, hidDevice);
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if(lResult == ERROR_SUCCESS)
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{
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//
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// This is a good hid device
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//
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(*pNumberHidDevices)++;
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//
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// So add it to our hid list
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//
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AddHidDevice(hidDevice);
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LOG((PHONESP_TRACE, "FindKnownHidDevices - new hid devive added"));
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}
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else
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - OpenHidDevice failed %08x", lResult ));
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MemFree(hidDevice);
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}
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}
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else
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - hid device already enumerated"));
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//
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// Clear the removed mark on this device, so we don't remove its phone later
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//
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hidDevice->bRemoved = FALSE;
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}
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}
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else
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - SetupDiGetDeviceInterfaceDetail failed %08x", GetLastError() ));
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}
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}
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lResult = GetLastError();
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if (ERROR_NO_MORE_ITEMS != lResult)
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{
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LOG((PHONESP_TRACE, "FindKnownHidDevices - SetupDiEnumDeviceInterfaces failed %08x", lResult ));
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SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
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return lResult;
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}
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LOG((PHONESP_TRACE, "FindKnownHidDevices - exit"));
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*pHidDevices = gpHidDevices;
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SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
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return ERROR_SUCCESS;
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}
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LONG
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OpenHidDevice (
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IN HDEVINFO HardwareDeviceInfo,
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IN PSP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
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IN OUT PHID_DEVICE HidDevice
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)
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/*++
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RoutineDescription:
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Given the HardwareDeviceInfo, representing a handle to the plug and
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play information, and deviceInfoData, representing a specific hid device,
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open that device and fill in all the relivant information in the given
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HID_DEVICE structure.
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return if the open and initialization was successfull or not.
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--*/
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{
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ULONG predictedLength = 0;
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ULONG requiredLength = 0;
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LONG lResult;
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//
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// allocate a function class device data structure to receive the
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// goods about this particular device.
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//
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LOG((PHONESP_TRACE,"OpenHidDevice - enter"));
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SetupDiGetDeviceInterfaceDetail(
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HardwareDeviceInfo,
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DeviceInterfaceData,
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NULL, // probing so no output buffer yet
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0, // probing so output buffer length of zero
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&requiredLength,
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NULL // not interested in the specific dev-node
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);
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predictedLength = requiredLength;
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HidDevice->functionClassDeviceData = MemAlloc (predictedLength);
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if (HidDevice->functionClassDeviceData == NULL)
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{
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LOG((PHONESP_TRACE,"OpenHidDevice - out of memory"));
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return ERROR_OUTOFMEMORY;
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}
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HidDevice->functionClassDeviceData->cbSize = sizeof (SP_DEVICE_INTERFACE_DETAIL_DATA);
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//
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// Retrieve the information from Plug and Play.
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//
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if (! SetupDiGetDeviceInterfaceDetail (
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HardwareDeviceInfo,
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DeviceInterfaceData,
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HidDevice->functionClassDeviceData,
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predictedLength,
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&requiredLength,
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NULL))
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{
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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LOG((PHONESP_TRACE,"OpenHidDevice - SetupDiGetDeviceInterfaceDetail 2"
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" Failed: %d", GetLastError()));
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return GetLastError();
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}
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HidDevice->HidDevice = CreateFile (
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HidDevice->functionClassDeviceData->DevicePath,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, // no SECURITY_ATTRIBUTES structure
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OPEN_EXISTING, // No special create flags
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FILE_FLAG_OVERLAPPED, // No special attributes
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NULL); // No template file
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if (INVALID_HANDLE_VALUE == HidDevice->HidDevice)
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{
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LOG((PHONESP_TRACE,"OpenHidDevice - CreateFile Failed: %d", GetLastError()));
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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return GetLastError();
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}
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if (!HidD_GetPreparsedData (HidDevice->HidDevice, &HidDevice->Ppd))
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{
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LOG((PHONESP_ERROR, "OpenHidDevice - HidD_GetPreparsedData failed"));
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CloseHandle(HidDevice->HidDevice);
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HidDevice->HidDevice = NULL;
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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return ERROR_INVALID_DATA;
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}
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if (!HidD_GetAttributes (HidDevice->HidDevice, &HidDevice->Attributes))
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{
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LOG((PHONESP_ERROR, "OpenHidDevice - HidD_GetAttributes failed"));
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CloseHandle(HidDevice->HidDevice);
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HidDevice->HidDevice = NULL;
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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HidD_FreePreparsedData (HidDevice->Ppd);
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return ERROR_INVALID_DATA;
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}
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if ((!HidP_GetCaps (HidDevice->Ppd, &HidDevice->Caps)) ||
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(HidDevice->Caps.UsagePage != HID_USAGE_PAGE_TELEPHONY) ||
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(HidDevice->Caps.Usage != HID_USAGE_TELEPHONY_PHONE) )
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{
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LOG((PHONESP_TRACE, " HID USAGE PAGE NOT TELEPHONY " ));
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CloseHandle(HidDevice->HidDevice);
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HidDevice->HidDevice = NULL;
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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HidD_FreePreparsedData (HidDevice->Ppd);
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return ERROR_INVALID_DATA;
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}
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else
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{
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LOG((PHONESP_TRACE, " HID USAGE PAGE TELEPHONY " ));
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}
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//
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// At this point the client has a choice. It may chose to look at the
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// Usage and Page of the top level collection found in the HIDP_CAPS
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// structure. In this way it could just use the usages it knows about.
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// If either HidP_GetUsages or HidP_GetUsageValue return an error then
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// that particular usage does not exist in the report.
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// This is most likely the preferred method as the application can only
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// use usages of which it already knows.
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// In this case the app need not even call GetButtonCaps or GetValueCaps.
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//
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// In this example, however, we will call FillDeviceInfo to look for all
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// of the usages in the device.
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//
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lResult = FillDeviceInfo(HidDevice);
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if(lResult != ERROR_SUCCESS)
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{
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LOG((PHONESP_ERROR, "OpenHidDevice - FillDeviceInfo failed"));
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CloseHandle(HidDevice->HidDevice);
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HidDevice->HidDevice = NULL;
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MemFree(HidDevice->functionClassDeviceData);
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HidDevice->functionClassDeviceData = NULL;
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HidD_FreePreparsedData (HidDevice->Ppd);
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return lResult;
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}
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LOG((PHONESP_TRACE,"OpenHidDevice - exit"));
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return ERROR_SUCCESS;
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}
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LONG
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FillDeviceInfo(
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IN PHID_DEVICE HidDevice
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)
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{
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USHORT numValues;
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USHORT numCaps;
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PHIDP_BUTTON_CAPS buttonCaps;
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PHIDP_VALUE_CAPS valueCaps;
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PHID_DATA data;
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ULONG i;
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USAGE usage;
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//
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// setup Input Data buffers.
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//
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//
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// Allocate memory to hold on input report
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//
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LOG((PHONESP_TRACE,"FillDeviceInfo - enter"));
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if ( ! ( HidDevice->InputReportBuffer = (PCHAR)
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MemAlloc (HidDevice->Caps.InputReportByteLength * sizeof (CHAR)) ) )
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{
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return ERROR_OUTOFMEMORY;
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}
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LOG((PHONESP_TRACE,"FillDeviceInfo - NumberInputButtonCaps %d", HidDevice->Caps.NumberInputButtonCaps));
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//
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// Allocate memory to hold the button and value capabilities.
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// NumberXXCaps is in terms of array elements.
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//
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HidDevice->InputButtonCaps =
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buttonCaps = (PHIDP_BUTTON_CAPS)
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MemAlloc (HidDevice->Caps.NumberInputButtonCaps
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* sizeof (HIDP_BUTTON_CAPS));
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if ( ! buttonCaps)
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{
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MemFree(HidDevice->InputReportBuffer);
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return ERROR_OUTOFMEMORY;
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}
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LOG((PHONESP_TRACE,"FillDeviceInfo - NumberInputValueCaps %d", HidDevice->Caps.NumberInputValueCaps));
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HidDevice->InputValueCaps =
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valueCaps = (PHIDP_VALUE_CAPS)
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MemAlloc (HidDevice->Caps.NumberInputValueCaps *
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sizeof (HIDP_VALUE_CAPS));
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if ( ! valueCaps)
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{
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MemFree(HidDevice->InputReportBuffer);
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MemFree(HidDevice->InputButtonCaps);
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return ERROR_OUTOFMEMORY;
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}
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//
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// Have the HidP_X functions fill in the capability structure arrays.
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//
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numCaps = HidDevice->Caps.NumberInputButtonCaps;
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HidP_GetButtonCaps (HidP_Input,
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buttonCaps,
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&numCaps,
|
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HidDevice->Ppd);
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numCaps = HidDevice->Caps.NumberInputValueCaps;
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HidP_GetValueCaps (HidP_Input,
|
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valueCaps,
|
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&numCaps,
|
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HidDevice->Ppd);
|
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|
|
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//
|
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// Depending on the device, some value caps structures may represent more
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// than one value. (A range). In the interest of being verbose, over
|
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// efficient, we will expand these so that we have one and only one
|
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// struct _HID_DATA for each value.
|
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//
|
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// To do this we need to count up the total number of values are listed
|
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// in the value caps structure. For each element in the array we test
|
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// for range if it is a range then UsageMax and UsageMin describe the
|
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// usages for this range INCLUSIVE.
|
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//
|
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numValues = 0;
|
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for (i = 0; i < HidDevice->Caps.NumberInputValueCaps; i++, valueCaps++)
|
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{
|
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if (valueCaps->IsRange)
|
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{
|
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numValues += valueCaps->Range.UsageMax -
|
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valueCaps->Range.UsageMin + 1;
|
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}
|
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else
|
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{
|
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numValues++;
|
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}
|
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}
|
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valueCaps = HidDevice->InputValueCaps;
|
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|
|
|
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//
|
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// Allocate a buffer to hold the struct _HID_DATA structures.
|
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// One element for each set of buttons, and one element for each value
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// found.
|
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//
|
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HidDevice->InputDataLength = HidDevice->Caps.NumberInputButtonCaps +
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numValues;
|
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|
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HidDevice->InputData =
|
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data = (PHID_DATA) MemAlloc (HidDevice->InputDataLength *
|
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sizeof (HID_DATA));
|
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|
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if( ! data )
|
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{
|
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MemFree(HidDevice->InputReportBuffer);
|
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MemFree(HidDevice->InputButtonCaps);
|
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MemFree(HidDevice->InputValueCaps);
|
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return ERROR_OUTOFMEMORY;
|
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}
|
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|
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//
|
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// Fill in the button data
|
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//
|
|
for (i = 0; i < HidDevice->Caps.NumberInputButtonCaps;
|
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i++, data++, buttonCaps++)
|
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{
|
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data->IsButtonData = TRUE;
|
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data->Status = HIDP_STATUS_SUCCESS;
|
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data->UsagePage = buttonCaps->UsagePage;
|
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|
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if (buttonCaps->IsRange)
|
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{
|
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data->ButtonData.UsageMin = buttonCaps -> Range.UsageMin;
|
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data->ButtonData.UsageMax = buttonCaps -> Range.UsageMax;
|
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}
|
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else
|
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{
|
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data->ButtonData.UsageMin =
|
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data->ButtonData.UsageMax = buttonCaps -> NotRange.Usage;
|
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}
|
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|
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data->ButtonData.MaxUsageLength = HidP_MaxUsageListLength (
|
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HidP_Input,
|
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buttonCaps->UsagePage,
|
|
HidDevice->Ppd);
|
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|
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data->ButtonData.Usages = (PUSAGE)
|
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MemAlloc (data->ButtonData.MaxUsageLength *
|
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sizeof (USAGE));
|
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|
|
// if MemAlloc fails release all previous allocated memory and return
|
|
// error
|
|
if ( data->ButtonData.Usages == NULL)
|
|
{
|
|
DWORD dwCnt;
|
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|
|
for(dwCnt = 0; dwCnt < i; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
data->ReportID = buttonCaps->ReportID;
|
|
}
|
|
|
|
//
|
|
// Fill in the value data
|
|
//
|
|
for (i = 0; i < numValues; i++, valueCaps++)
|
|
{
|
|
if (valueCaps->IsRange)
|
|
{
|
|
for (usage = valueCaps->Range.UsageMin;
|
|
usage <= valueCaps->Range.UsageMax;
|
|
usage++)
|
|
{
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = usage;
|
|
data->ReportID = valueCaps->ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = valueCaps->NotRange.Usage;
|
|
data->ReportID = valueCaps->ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
|
|
//
|
|
// setup Output Data buffers.
|
|
//
|
|
if ( ! ( HidDevice->OutputReportBuffer = (PCHAR)
|
|
MemAlloc (HidDevice->Caps.OutputReportByteLength *
|
|
sizeof (CHAR)) ) )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
LOG((PHONESP_TRACE,"FillDeviceInfo - NumberOutputButtonCaps %d", HidDevice->Caps.NumberOutputButtonCaps));
|
|
|
|
HidDevice->OutputButtonCaps =
|
|
buttonCaps = (PHIDP_BUTTON_CAPS)
|
|
MemAlloc(HidDevice->Caps.NumberOutputButtonCaps *
|
|
sizeof (HIDP_BUTTON_CAPS));
|
|
if ( ! buttonCaps )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
LOG((PHONESP_TRACE,"FillDeviceInfo - NumberOutputValueCaps %d", HidDevice->Caps.NumberOutputValueCaps));
|
|
|
|
HidDevice->OutputValueCaps =
|
|
valueCaps = (PHIDP_VALUE_CAPS)
|
|
MemAlloc (HidDevice->Caps.NumberOutputValueCaps *
|
|
sizeof (HIDP_VALUE_CAPS));
|
|
if ( ! valueCaps )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
|
|
numCaps = HidDevice->Caps.NumberOutputButtonCaps;
|
|
|
|
HidP_GetButtonCaps (HidP_Output,
|
|
buttonCaps,
|
|
&numCaps,
|
|
HidDevice->Ppd);
|
|
|
|
|
|
numCaps = HidDevice->Caps.NumberOutputValueCaps;
|
|
|
|
HidP_GetValueCaps (HidP_Output,
|
|
valueCaps,
|
|
&numCaps,
|
|
HidDevice->Ppd);
|
|
|
|
|
|
numValues = 0;
|
|
for (i = 0; i < HidDevice->Caps.NumberOutputValueCaps; i++, valueCaps++)
|
|
{
|
|
if (valueCaps->IsRange)
|
|
{
|
|
numValues += valueCaps->Range.UsageMax -
|
|
valueCaps->Range.UsageMin + 1;
|
|
}
|
|
else
|
|
{
|
|
numValues++;
|
|
}
|
|
}
|
|
valueCaps = HidDevice->OutputValueCaps;
|
|
|
|
HidDevice->OutputDataLength = HidDevice->Caps.NumberOutputButtonCaps
|
|
+ numValues;
|
|
|
|
HidDevice->OutputData =
|
|
data = (PHID_DATA) MemAlloc (HidDevice->OutputDataLength *
|
|
sizeof (HID_DATA));
|
|
|
|
if ( ! data )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
for (i = 0; i < HidDevice->Caps.NumberOutputButtonCaps;
|
|
i++, data++, buttonCaps++)
|
|
{
|
|
|
|
data->IsButtonData = TRUE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = buttonCaps->UsagePage;
|
|
|
|
if (buttonCaps->IsRange)
|
|
{
|
|
data->ButtonData.UsageMin = buttonCaps -> Range.UsageMin;
|
|
data->ButtonData.UsageMax = buttonCaps -> Range.UsageMax;
|
|
}
|
|
else
|
|
{
|
|
data->ButtonData.UsageMin =
|
|
data->ButtonData.UsageMax = buttonCaps->NotRange.Usage;
|
|
}
|
|
|
|
data->ButtonData.MaxUsageLength = HidP_MaxUsageListLength (
|
|
HidP_Output,
|
|
buttonCaps->UsagePage,
|
|
HidDevice->Ppd);
|
|
data->ButtonData.Usages = (PUSAGE)
|
|
MemAlloc (data->ButtonData.MaxUsageLength *
|
|
sizeof (USAGE));
|
|
|
|
if( ! data)
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < i; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
data->ReportID = buttonCaps->ReportID;
|
|
}
|
|
|
|
|
|
for (i = 0; i < numValues; i++, valueCaps++)
|
|
{
|
|
if (valueCaps->IsRange)
|
|
{
|
|
for (usage = valueCaps->Range.UsageMin;
|
|
usage <= valueCaps->Range.UsageMax; usage++)
|
|
{
|
|
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = usage;
|
|
data->ReportID = valueCaps -> ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = valueCaps->NotRange.Usage;
|
|
data->ReportID = valueCaps -> ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
|
|
//
|
|
// setup Feature Data buffers.
|
|
//
|
|
|
|
if ( ! ( HidDevice->FeatureReportBuffer = (PCHAR)
|
|
MemAlloc (HidDevice->Caps.FeatureReportByteLength *
|
|
sizeof (CHAR)) ) )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
LOG((PHONESP_TRACE,"FillDeviceInfo - NumberFeatureButtonCaps %d", HidDevice->Caps.NumberFeatureButtonCaps));
|
|
|
|
if ( ! ( HidDevice->FeatureButtonCaps = buttonCaps = (PHIDP_BUTTON_CAPS)
|
|
MemAlloc (HidDevice->Caps.NumberFeatureButtonCaps *
|
|
sizeof (HIDP_BUTTON_CAPS)) ) )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
MemFree(HidDevice->FeatureReportBuffer);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
LOG((PHONESP_TRACE,"FillDeviceInfo - NumberFeatureValueCaps %d", HidDevice->Caps.NumberFeatureValueCaps));
|
|
|
|
HidDevice->FeatureValueCaps =
|
|
valueCaps = (PHIDP_VALUE_CAPS)
|
|
MemAlloc (HidDevice->Caps.NumberFeatureValueCaps *
|
|
sizeof (HIDP_VALUE_CAPS));
|
|
|
|
if ( ! valueCaps)
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
MemFree(HidDevice->FeatureReportBuffer);
|
|
MemFree(HidDevice->FeatureButtonCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
|
|
|
|
numCaps = HidDevice->Caps.NumberFeatureButtonCaps;
|
|
HidP_GetButtonCaps (HidP_Feature,
|
|
buttonCaps,
|
|
&numCaps,
|
|
HidDevice->Ppd);
|
|
|
|
numCaps = HidDevice->Caps.NumberFeatureValueCaps;
|
|
HidP_GetValueCaps (HidP_Feature,
|
|
valueCaps,
|
|
&numCaps,
|
|
HidDevice->Ppd);
|
|
|
|
|
|
numValues = 0;
|
|
for (i = 0; i < HidDevice->Caps.NumberFeatureValueCaps; i++, valueCaps++)
|
|
{
|
|
if (valueCaps->IsRange)
|
|
{
|
|
numValues += valueCaps->Range.UsageMax
|
|
- valueCaps->Range.UsageMin + 1;
|
|
}
|
|
else
|
|
{
|
|
numValues++;
|
|
}
|
|
}
|
|
valueCaps = HidDevice->FeatureValueCaps;
|
|
|
|
HidDevice->FeatureDataLength = HidDevice->Caps.NumberFeatureButtonCaps
|
|
+ numValues;
|
|
|
|
HidDevice->FeatureData =
|
|
data = (PHID_DATA)
|
|
MemAlloc (HidDevice->FeatureDataLength * sizeof (HID_DATA));
|
|
|
|
if ( ! data )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
MemFree(HidDevice->FeatureReportBuffer);
|
|
MemFree(HidDevice->FeatureButtonCaps);
|
|
MemFree(HidDevice->FeatureValueCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
|
|
for ( i = 0; i < HidDevice->Caps.NumberFeatureButtonCaps;
|
|
i++, data++, buttonCaps++)
|
|
{
|
|
data->IsButtonData = TRUE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = buttonCaps->UsagePage;
|
|
|
|
if (buttonCaps->IsRange)
|
|
{
|
|
data->ButtonData.UsageMin = buttonCaps->Range.UsageMin;
|
|
data->ButtonData.UsageMax = buttonCaps->Range.UsageMax;
|
|
}
|
|
else
|
|
{
|
|
data->ButtonData.UsageMin =
|
|
data->ButtonData.UsageMax = buttonCaps->NotRange.Usage;
|
|
}
|
|
|
|
data->ButtonData.MaxUsageLength = HidP_MaxUsageListLength (
|
|
HidP_Feature,
|
|
buttonCaps->UsagePage,
|
|
HidDevice->Ppd);
|
|
data->ButtonData.Usages = (PUSAGE)
|
|
MemAlloc (data->ButtonData.MaxUsageLength *
|
|
sizeof (USAGE));
|
|
|
|
if ( ! data->ButtonData.Usages )
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->InputData);
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
MemFree(HidDevice->InputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->OutputData);
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberFeatureButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->FeatureData[dwCnt].ButtonData.Usages);
|
|
}
|
|
MemFree(HidDevice->FeatureData);
|
|
MemFree(HidDevice->FeatureReportBuffer);
|
|
MemFree(HidDevice->FeatureButtonCaps);
|
|
MemFree(HidDevice->FeatureValueCaps);
|
|
|
|
return ERROR_OUTOFMEMORY;
|
|
}
|
|
|
|
data->ReportID = buttonCaps->ReportID;
|
|
}
|
|
|
|
for (i = 0; i < numValues; i++, valueCaps++)
|
|
{
|
|
if (valueCaps->IsRange)
|
|
{
|
|
for (usage = valueCaps->Range.UsageMin;
|
|
usage <= valueCaps->Range.UsageMax;
|
|
usage++)
|
|
{
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = usage;
|
|
data->ReportID = valueCaps->ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data->IsButtonData = FALSE;
|
|
data->Status = HIDP_STATUS_SUCCESS;
|
|
data->UsagePage = valueCaps->UsagePage;
|
|
data->ValueData.Usage = valueCaps->NotRange.Usage;
|
|
data->ReportID = valueCaps -> ReportID;
|
|
data++;
|
|
}
|
|
}
|
|
|
|
LOG((PHONESP_TRACE,"FillDeviceInfo - exit"));
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
VOID
|
|
CloseHidDevices()
|
|
{
|
|
LOG((PHONESP_TRACE, "CloseHidDevices - enter"));
|
|
|
|
while (gpHidDevices != NULL)
|
|
{
|
|
CloseHidDevice(gpHidDevices);
|
|
}
|
|
|
|
LOG((PHONESP_TRACE, "CloseHidDevices - exit"));
|
|
|
|
return;
|
|
}
|
|
|
|
BOOL
|
|
OpenHidFile (
|
|
IN PHID_DEVICE HidDevice
|
|
)
|
|
{
|
|
LOG((PHONESP_TRACE, "OpenHidFile - enter"));
|
|
|
|
if (HidDevice != NULL)
|
|
{
|
|
if (HidDevice->functionClassDeviceData != NULL)
|
|
{
|
|
HidDevice->HidDevice = CreateFile (
|
|
HidDevice->functionClassDeviceData->DevicePath,
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
NULL, // no SECURITY_ATTRIBUTES structure
|
|
OPEN_EXISTING, // No special create flags
|
|
FILE_FLAG_OVERLAPPED, // No special attributes
|
|
NULL); // No template file
|
|
|
|
if (INVALID_HANDLE_VALUE == HidDevice->HidDevice)
|
|
{
|
|
LOG((PHONESP_ERROR,"OpenHidFile - CreateFile failed: %d", GetLastError()));
|
|
return FALSE;
|
|
}
|
|
|
|
LOG((PHONESP_TRACE, "OpenHidFile - exit"));
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
LOG((PHONESP_WARN, "OpenHidFile - no device"));
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL
|
|
CloseHidFile (
|
|
IN PHID_DEVICE HidDevice
|
|
)
|
|
{
|
|
LOG((PHONESP_TRACE, "CloseHidFile - enter"));
|
|
|
|
if (HidDevice != NULL)
|
|
{
|
|
if ((NULL != HidDevice->HidDevice) &&
|
|
(INVALID_HANDLE_VALUE != HidDevice->HidDevice))
|
|
{
|
|
CloseHandle(HidDevice->HidDevice);
|
|
HidDevice->HidDevice = NULL;
|
|
|
|
LOG((PHONESP_TRACE, "CloseHidFile - exit"));
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
LOG((PHONESP_WARN, "CloseHidFile - no device"));
|
|
return FALSE;
|
|
}
|
|
|
|
VOID
|
|
CloseHidDevice (
|
|
IN PHID_DEVICE HidDevice
|
|
)
|
|
{
|
|
LOG((PHONESP_TRACE, "CloseHidDevice - enter"));
|
|
|
|
if (HidDevice != NULL)
|
|
{
|
|
if (NULL != HidDevice->functionClassDeviceData)
|
|
{
|
|
MemFree(HidDevice->functionClassDeviceData);
|
|
}
|
|
|
|
if ((NULL != HidDevice -> HidDevice) &&
|
|
(INVALID_HANDLE_VALUE != HidDevice -> HidDevice))
|
|
{
|
|
CloseHandle(HidDevice->HidDevice);
|
|
HidDevice->HidDevice = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->Ppd)
|
|
{
|
|
HidD_FreePreparsedData(HidDevice->Ppd);
|
|
HidDevice->Ppd = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->InputReportBuffer)
|
|
{
|
|
MemFree(HidDevice->InputReportBuffer);
|
|
HidDevice->InputReportBuffer = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->InputData)
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberInputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->InputData[dwCnt].ButtonData.Usages);
|
|
HidDevice->InputData[dwCnt].ButtonData.Usages = NULL;
|
|
}
|
|
|
|
MemFree(HidDevice->InputData);
|
|
HidDevice->InputData = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->InputButtonCaps)
|
|
{
|
|
MemFree(HidDevice->InputButtonCaps);
|
|
HidDevice->InputButtonCaps = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->InputValueCaps)
|
|
{
|
|
MemFree(HidDevice->InputValueCaps);
|
|
HidDevice->InputValueCaps = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->OutputReportBuffer)
|
|
{
|
|
MemFree(HidDevice->OutputReportBuffer);
|
|
HidDevice->OutputReportBuffer = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->OutputData)
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberOutputButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->OutputData[dwCnt].ButtonData.Usages);
|
|
HidDevice->OutputData[dwCnt].ButtonData.Usages = NULL;
|
|
}
|
|
|
|
MemFree(HidDevice->OutputData);
|
|
HidDevice->OutputData = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->OutputButtonCaps)
|
|
{
|
|
MemFree(HidDevice->OutputButtonCaps);
|
|
HidDevice->OutputButtonCaps = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->OutputValueCaps)
|
|
{
|
|
MemFree(HidDevice->OutputValueCaps);
|
|
HidDevice->OutputValueCaps = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->FeatureReportBuffer)
|
|
{
|
|
MemFree(HidDevice->FeatureReportBuffer);
|
|
HidDevice->FeatureReportBuffer = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->FeatureData)
|
|
{
|
|
DWORD dwCnt;
|
|
|
|
for(dwCnt = 0; dwCnt < HidDevice->Caps.NumberFeatureButtonCaps; dwCnt++)
|
|
{
|
|
MemFree(HidDevice->FeatureData[dwCnt].ButtonData.Usages);
|
|
HidDevice->FeatureData[dwCnt].ButtonData.Usages = NULL;
|
|
}
|
|
|
|
MemFree(HidDevice->FeatureData);
|
|
HidDevice->FeatureData = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->FeatureButtonCaps)
|
|
{
|
|
MemFree(HidDevice->FeatureButtonCaps);
|
|
HidDevice->FeatureButtonCaps = NULL;
|
|
}
|
|
|
|
if (NULL != HidDevice->FeatureValueCaps)
|
|
{
|
|
MemFree(HidDevice->FeatureValueCaps);
|
|
HidDevice->FeatureValueCaps = NULL;
|
|
}
|
|
|
|
RemoveHidDevice(HidDevice);
|
|
MemFree(HidDevice);
|
|
}
|
|
|
|
LOG((PHONESP_TRACE, "CloseHidDevice - exit"));
|
|
return;
|
|
}
|
|
|
|
VOID
|
|
AddHidDevice (
|
|
IN PHID_DEVICE HidDevice
|
|
)
|
|
{
|
|
LOG((PHONESP_TRACE, "AddHidDevice - enter"));
|
|
|
|
HidDevice->Next = gpHidDevices;
|
|
HidDevice->Prev = NULL;
|
|
|
|
if (gpHidDevices)
|
|
{
|
|
gpHidDevices->Prev = HidDevice;
|
|
}
|
|
|
|
gpHidDevices = HidDevice;
|
|
|
|
LOG((PHONESP_TRACE, "AddHidDevice - exit"));
|
|
}
|
|
|
|
VOID
|
|
RemoveHidDevice (
|
|
IN PHID_DEVICE HidDevice
|
|
)
|
|
{
|
|
LOG((PHONESP_TRACE, "RemoveHidDevice - enter"));
|
|
|
|
if (HidDevice->Prev)
|
|
{
|
|
HidDevice->Prev->Next = HidDevice->Next;
|
|
}
|
|
else
|
|
{
|
|
// first in list
|
|
gpHidDevices = HidDevice->Next;
|
|
}
|
|
|
|
if (HidDevice->Next)
|
|
{
|
|
HidDevice->Next->Prev = HidDevice->Prev;
|
|
}
|
|
|
|
HidDevice->Next = NULL;
|
|
HidDevice->Prev = NULL;
|
|
|
|
LOG((PHONESP_TRACE, "RemoveHidDevice - exit"));
|
|
}
|
|
|
|
PHID_DEVICE
|
|
FindHidDeviceByDevInst (
|
|
IN DWORD DevInst
|
|
)
|
|
{
|
|
PHID_DEVICE HidDevice = gpHidDevices;
|
|
|
|
LOG((PHONESP_TRACE, "FindHidDeviceByDevInst - enter"));
|
|
|
|
while (HidDevice != NULL)
|
|
{
|
|
if (HidDevice->dwDevInst == DevInst)
|
|
{
|
|
LOG((PHONESP_TRACE, "FindHidDeviceByDevInst - exit"));
|
|
return HidDevice;
|
|
}
|
|
|
|
HidDevice = HidDevice->Next;
|
|
}
|
|
|
|
LOG((PHONESP_WARN, "FindHidDeviceByDevInst - not found"));
|
|
return NULL;
|
|
}
|