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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2024 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_HID_INTERNAL
#define BRLTTY_INCLUDED_HID_INTERNAL
#include "hid_types.h"
#include "async_types_io.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct HidHandleStruct HidHandle;
typedef void HidDestroyHandleMethod (HidHandle *handle);
typedef const HidItemsDescriptor *HidGetItemsMethod (HidHandle *handle);
typedef int HidGetReportSizeMethod (
HidHandle *handle,
HidReportIdentifier identifier,
HidReportSize *size
);
typedef ssize_t HidGetReportMethod (HidHandle *handle, unsigned char *buffer, size_t size);
typedef ssize_t HidSetReportMethod (HidHandle *handle, const unsigned char *report, size_t size);
typedef ssize_t HidGetFeatureMethod (HidHandle *handle, unsigned char *buffer, size_t size);
typedef ssize_t HidSetFeatureMethod (HidHandle *handle, const unsigned char *feature, size_t size);
typedef int HidWriteDataMethod (HidHandle *handle, const unsigned char *data, size_t size);
typedef int HidMonitorInputMethod (HidHandle *handle, AsyncMonitorCallback *callback, void *data);
typedef int HidAwaitInputMethod (HidHandle *handle, int timeout);
typedef ssize_t HidReadDataMethod (
HidHandle *handle, unsigned char *buffer, size_t size,
int initialTimeout, int subsequentTimeout
);
typedef int HidGetDeviceIdentifiersMethod (HidHandle *handle, uint16_t *vendor, uint16_t *product);
typedef const char *HidGetDeviceAddressMethod (HidHandle *handle);
typedef const char *HidGetDeviceNameMethod (HidHandle *handle);
typedef const char *HidGetHostPathMethod (HidHandle *handle);
typedef const char *HidGetHostDeviceMethod (HidHandle *handle);
typedef struct {
HidDestroyHandleMethod *destroyHandle;
HidGetItemsMethod *getItems;
HidGetReportSizeMethod *getReportSize;
HidGetReportMethod *getReport;
HidSetReportMethod *setReport;
HidGetFeatureMethod *getFeature;
HidSetFeatureMethod *setFeature;
HidWriteDataMethod *writeData;
HidMonitorInputMethod *monitorInput;
HidAwaitInputMethod *awaitInput;
HidReadDataMethod *readData;
HidGetDeviceIdentifiersMethod *getDeviceIdentifiers;
HidGetDeviceAddressMethod *getDeviceAddress;
HidGetDeviceNameMethod *getDeviceName;
HidGetHostPathMethod *getHostPath;
HidGetHostDeviceMethod *getHostDevice;
} HidHandleMethods;
typedef HidHandle *HidNewUSBHandleMethod (const HidUSBFilter *filter);
typedef HidHandle *HidNewBluetoothHandleMethod (const HidBluetoothFilter *filter);
typedef struct {
const char *packageName;
const HidHandleMethods *handleMethods;
HidNewUSBHandleMethod *newUSBHandle;
HidNewBluetoothHandleMethod *newBluetoothHandle;
} HidPackageDescriptor;
extern const HidPackageDescriptor hidPackageDescriptor;
extern int hidParseDeviceIdentifier (HidDeviceIdentifier *identifier, const char *string);
extern int hidMatchString (const char *actualString, const char *testString);
typedef int HidGetStringMethod (
HidHandle *handle, char *buffer, size_t size, void *data
);
extern const char *hidCacheString (
HidHandle *handle, char **cachedValue,
char *buffer, size_t size,
HidGetStringMethod *getString, void *data
);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_HID_INTERNAL */
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