mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-30 12:43:34 +08:00
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*
|
|
* Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
|
|
*
|
|
* This software may be freely used, copied, modified, and distributed
|
|
* provided that the above copyright notice is preserved in all copies of the
|
|
* software.
|
|
*/
|
|
|
|
/* -*-C-*-
|
|
*
|
|
* $Revision$
|
|
* $Date$
|
|
*
|
|
*
|
|
* Project: ANGEL
|
|
*
|
|
* Title: Devices header file
|
|
*/
|
|
|
|
#ifndef angel_devices_h
|
|
#define angel_devices_h
|
|
|
|
/*
|
|
* Provides common types for using devices, and provides access to the
|
|
* device table.
|
|
*/
|
|
|
|
#include "angel.h"
|
|
#include "buffers.h"
|
|
|
|
/* General purpose constants, macros, enums, typedefs */
|
|
|
|
/* a non-enum holder for device IDs */
|
|
typedef unsigned int DeviceID;
|
|
|
|
/* device error codes */
|
|
typedef enum DevError {
|
|
DE_OKAY, /* no error */
|
|
DE_NO_DEV, /* no such device */
|
|
DE_BAD_DEV, /* device does not support angel */
|
|
DE_BAD_CHAN, /* no such device channel */
|
|
DE_BAD_OP, /* operation not supported by this device */
|
|
DE_BUSY, /* device already busy */
|
|
DE_INVAL, /* length invalid */
|
|
DE_FAILED /* something else went wrong */
|
|
} DevError;
|
|
|
|
/* return codes from asynchronous calls - primarily for channels' benefit */
|
|
typedef enum DevStatus {
|
|
DS_DONE, /* operation succeeded */
|
|
DS_OVERFLOW, /* not enough buffer space */
|
|
DS_BAD_PACKET, /* packet failed */
|
|
DS_DEV_ERROR, /* device error */
|
|
DS_INT_ERROR /* internal error */
|
|
} DevStatus;
|
|
|
|
/* Callback for async. writes */
|
|
typedef void (*DevWrite_CB_Fn)(
|
|
void *buff, /* pointer to data -- cast to p_Buffer */
|
|
void *length, /* how much done -- cast to unsigned */
|
|
void *status, /* success code -- cast to DevStatus */
|
|
void *cb_data /* as supplied */
|
|
);
|
|
|
|
/* Callback for async. reads */
|
|
typedef void (*DevRead_CB_Fn)(
|
|
void *buff, /* pointer to data -- cast to p_Buffer */
|
|
void *length, /* how much read -- cast to unsigned */
|
|
void *status, /* success code -- cast to DevStatus */
|
|
void *cb_data /* as supplied */
|
|
);
|
|
|
|
/* control operations */
|
|
typedef enum DeviceControl {
|
|
DC_INIT, /* initialise device */
|
|
DC_RESET, /* reset device */
|
|
DC_RECEIVE_MODE, /* control reception */
|
|
DC_SET_PARAMS, /* set parameters of device */
|
|
#ifndef TARGET
|
|
DC_GET_USER_PARAMS, /* params set by user at open */
|
|
DC_GET_DEFAULT_PARAMS, /* device default parameters */
|
|
DC_RESYNC, /* resynchronise with new agent */
|
|
#endif
|
|
DC_PRIVATE /* start of private device codes */
|
|
} DeviceControl;
|
|
|
|
typedef enum DevRecvMode {
|
|
DR_DISABLE,
|
|
DR_ENABLE
|
|
} DevRecvMode;
|
|
|
|
/*
|
|
* callback to allow a device driver to request a buffer, to be filled
|
|
* with an incoming packet
|
|
*/
|
|
typedef p_Buffer (*DevGetBuff_Fn)(unsigned req_size, void *cb_data);
|
|
|
|
|
|
/* Publically-accessible globals */
|
|
/* none */
|
|
|
|
#endif /* ndef angel_devices_h */
|
|
|
|
/* EOF devices.h */
|