brlapi_protocol.h

NAME

brlapi_protocol.h - types and constants for BrlAPI’s protocol

SYNOPSIS

#include ’brlapi.h’
#include <inttypes.h>
#include <unistd.h>
#include <pthread.h>

Data Structures

struct brlapi_header_t
struct brlapi_versionPacket_t
struct brlapi_authClientPacket_t
struct brlapi_authServerPacket_t
struct brlapi_errorPacket_t
struct brlapi_getDriverSpecificModePacket_t
struct brlapi_writeArgumentsPacket_t
struct brlapi_paramValuePacket_t
struct brlapi_paramRequestPacket_t
union brlapi_packet_t

Macros

#define UINT32_MAX (4294967295U)
#define BRLAPI_PROTOCOL_VERSION ((uint32_t) 8) /** Communication protocol version */
#define BRLAPI_MAXPACKETSIZE 4096
#define BRLAPI_PACKET_VERSION ’v’
#define BRLAPI_PACKET_AUTH ’a’
#define BRLAPI_PACKET_GETDRIVERNAME ’n’
#define BRLAPI_PACKET_GETMODELID ’d’
#define BRLAPI_PACKET_GETDISPLAYSIZE ’s’
#define BRLAPI_PACKET_ENTERTTYMODE ’t’
#define BRLAPI_PACKET_SETFOCUS ’F’
#define BRLAPI_PACKET_LEAVETTYMODE ’L’
#define BRLAPI_PACKET_KEY ’k’
#define BRLAPI_PACKET_IGNOREKEYRANGES ’m’
#define BRLAPI_PACKET_ACCEPTKEYRANGES ’u’
#define BRLAPI_PACKET_WRITE ’w’
#define BRLAPI_PACKET_ENTERRAWMODE ’*’
#define BRLAPI_PACKET_LEAVERAWMODE ’#’
#define BRLAPI_PACKET_PACKET ’p’
#define BRLAPI_PACKET_ACK ’A’
#define BRLAPI_PACKET_ERROR ’e’
#define BRLAPI_PACKET_EXCEPTION ’E’
#define BRLAPI_PACKET_SUSPENDDRIVER ’S’
#define BRLAPI_PACKET_RESUMEDRIVER ’R’
#define BRLAPI_PACKET_SYNCHRONIZE ’Z’
#define BRLAPI_PACKET_PARAM_VALUE ((’P’<<8) + ’V’)
#define BRLAPI_PACKET_PARAM_REQUEST ((’P’<<8) + ’R’)
#define BRLAPI_PACKET_PARAM_UPDATE ((’P’<<8) + ’U’)
#define BRLAPI_DEVICE_MAGIC (0xdeadbeefL)
#define BRLAPI_HEADERSIZE sizeof(brlapi_header_t)
#define BRLAPI_AUTH_NONE ’N’
#define BRLAPI_AUTH_KEY ’K’
#define BRLAPI_AUTH_CRED ’C’
#define BRLAPI_WF_DISPLAYNUMBER 0X01
#define BRLAPI_WF_REGION 0X02
#define BRLAPI_WF_TEXT 0X04
#define BRLAPI_WF_ATTR_AND 0X08
#define BRLAPI_WF_ATTR_OR 0X10
#define BRLAPI_WF_CURSOR 0X20
#define BRLAPI_WF_CHARSET 0X40
#define BRLAPI_PVF_GLOBAL 0X01 /** Value is the global value */
#define BRLAPI_MAXPARAMSIZE (BRLAPI_MAXPACKETSIZE - (sizeof(uint32_t) + sizeof(brlapi_param_t) + 2*sizeof(uint32_t)))
#define BRLAPI_PARAMF_GET 0X100 /** Get current parameter value */
#define BRLAPI_PARAMF_SUBSCRIBE 0X200 /** Subscribe to parameter updates */
#define BRLAPI_PARAMF_UNSUBSCRIBE 0X400 /** Unsubscribe from parameter updates */

Functions

ssize_t brlapi_writePacket (brlapi_fileDescriptor fd, brlapi_packetType_t type, const void *buf, size_t size)
ssize_t brlapi_readPacketHeader (brlapi_fileDescriptor fd, brlapi_packetType_t *packetType)
ssize_t brlapi_readPacketContent (brlapi_fileDescriptor fd, size_t packetSize, void *buf, size_t bufSize)
ssize_t brlapi_readPacket (brlapi_fileDescriptor fd, brlapi_packetType_t *type, void *buf, size_t size)

Variables

pthread_mutex_t brlapi_fd_mutex

Macro Definition Documentation

#define UINT32_MAX (4294967295U)

Author

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