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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_GIO_INTERNAL
#define BRLTTY_INCLUDED_GIO_INTERNAL
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct GioHandleStruct GioHandle;
typedef int GioDisconnectResourceMethod (GioHandle *handle);
typedef GioEndpoint *GioGetChainedEndpointMethod (GioHandle *handle);
typedef const char *MakeResourceIdentifierMethod (GioHandle *handle, char *buffer, size_t size);
typedef char *GioGetResourceNameMethod (GioHandle *handle, int timeout);
typedef void *GioGetResourceObjectMethod (GioHandle *handle);
typedef ssize_t GioWriteDataMethod (GioHandle *handle, const void *data, size_t size, int timeout);
typedef int GioAwaitInputMethod (GioHandle *handle, int timeout);
typedef ssize_t GioReadDataMethod (
GioHandle *handle, void *buffer, size_t size,
int initialTimeout, int subsequentTimeout
);
typedef int GioMonitorInputMethod (GioHandle *handle, AsyncMonitorCallback *callback, void *data);
typedef int GioReconfigureResourceMethod (GioHandle *handle, const SerialParameters *parameters);
typedef ssize_t GioTellResourceMethod (
GioHandle *handle, uint8_t recipient, uint8_t type,
uint8_t request, uint16_t value, uint16_t index,
const void *data, uint16_t size, int timeout
);
typedef ssize_t GioAskResourceMethod (
GioHandle *handle, uint8_t recipient, uint8_t type,
uint8_t request, uint16_t value, uint16_t index,
void *buffer, uint16_t size, int timeout
);
typedef int GioGetHidReportSizeMethod (
GioHandle *handle, HidReportIdentifier identifier,
HidReportSize *size, int timeout
);
typedef ssize_t GioGetHidReportMethod (
GioHandle *handle, HidReportIdentifier identifier,
unsigned char *buffer, size_t size, int timeout
);
typedef ssize_t GioSetHidReportMethod (
GioHandle *handle, HidReportIdentifier identifier,
const unsigned char *data, size_t size, int timeout
);
typedef ssize_t GioGetHidFeatureMethod (
GioHandle *handle, HidReportIdentifier identifier,
unsigned char *buffer, size_t size, int timeout
);
typedef ssize_t GioSetHidFeatureMethod (
GioHandle *handle, HidReportIdentifier identifier,
const unsigned char *data, size_t size, int timeout
);
typedef struct {
GioDisconnectResourceMethod *disconnectResource;
GioGetChainedEndpointMethod *getChainedEndpoint;
MakeResourceIdentifierMethod *makeResourceIdentifier;
GioGetResourceNameMethod *getResourceName;
GioGetResourceObjectMethod *getResourceObject;
GioWriteDataMethod *writeData;
GioAwaitInputMethod *awaitInput;
GioReadDataMethod *readData;
GioMonitorInputMethod *monitorInput;
GioReconfigureResourceMethod *reconfigureResource;
GioTellResourceMethod *tellResource;
GioAskResourceMethod *askResource;
GioGetHidReportSizeMethod *getHidReportSize;
GioGetHidReportMethod *getHidReport;
GioSetHidReportMethod *setHidReport;
GioGetHidFeatureMethod *getHidFeature;
GioSetHidFeatureMethod *setHidFeature;
} GioHandleMethods;
struct GioEndpointStruct {
GioHandle *handle;
const GioHandleMethods *handleMethods;
GioOptions options;
GioTypeIdentifier resourceType;
unsigned int bytesPerSecond;
unsigned char referenceCount;
struct {
int error;
unsigned int from;
unsigned int to;
unsigned char buffer[0X40];
} input;
};
typedef int GioIsSupportedMethod (const GioDescriptor *descriptor);
typedef const GioOptions *GioGetOptionsMethod (const GioDescriptor *descriptor);
typedef const GioHandleMethods *GioGetHandleMethodsMethod (void);
typedef GioHandle *GioConnectResourceMethod (
const char *identifier,
const GioDescriptor *descriptor
);
typedef int GioPrepareEndpointMethod (GioEndpoint *endpoint);
typedef struct {
GioIsSupportedMethod *isSupported;
GioGetOptionsMethod *getOptions;
GioGetHandleMethodsMethod *getHandleMethods;
GioConnectResourceMethod *connectResource;
GioPrepareEndpointMethod *prepareEndpoint;
} GioPrivateProperties;
typedef struct {
const GioPublicProperties *public;
const GioPrivateProperties *private;
} GioProperties;
extern const GioProperties *const gioProperties[];
extern const GioProperties gioProperties_serial;
extern const GioProperties gioProperties_usb;
extern const GioProperties gioProperties_bluetooth;
extern const GioProperties gioProperties_hid;
extern const GioProperties gioProperties_null;
extern void gioSetBytesPerSecond (GioEndpoint *endpoint, const SerialParameters *parameters);
extern void gioSetApplicationData (GioEndpoint *endpoint, const void *data);
static inline int
gioIsHidSupported (const GioDescriptor *descriptor) {
return gioProperties_hid.private->isSupported(descriptor);
}
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_GIO_INTERNAL */
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