| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| |
| /*************************************************************************** |
| * copyright : (C) 2002 by Frank Mori Hess |
| ***************************************************************************/ |
| |
| #ifndef _GPIB_H |
| #define _GPIB_H |
| |
| #define GPIB_MAX_NUM_BOARDS 16 |
| #define GPIB_MAX_NUM_DESCRIPTORS 0x1000 |
| |
| enum ibsta_bit_numbers { |
| DCAS_NUM = 0, |
| DTAS_NUM = 1, |
| LACS_NUM = 2, |
| TACS_NUM = 3, |
| ATN_NUM = 4, |
| CIC_NUM = 5, |
| REM_NUM = 6, |
| LOK_NUM = 7, |
| CMPL_NUM = 8, |
| EVENT_NUM = 9, |
| SPOLL_NUM = 10, |
| RQS_NUM = 11, |
| SRQI_NUM = 12, |
| END_NUM = 13, |
| TIMO_NUM = 14, |
| ERR_NUM = 15 |
| }; |
| |
| /* IBSTA status bits (returned by all functions) */ |
| enum ibsta_bits { |
| DCAS = (1 << DCAS_NUM), /* device clear state */ |
| DTAS = (1 << DTAS_NUM), /* device trigger state */ |
| LACS = (1 << LACS_NUM), /* GPIB interface is addressed as Listener */ |
| TACS = (1 << TACS_NUM), /* GPIB interface is addressed as Talker */ |
| ATN = (1 << ATN_NUM), /* Attention is asserted */ |
| CIC = (1 << CIC_NUM), /* GPIB interface is Controller-in-Charge */ |
| REM = (1 << REM_NUM), /* remote state */ |
| LOK = (1 << LOK_NUM), /* lockout state */ |
| CMPL = (1 << CMPL_NUM), /* I/O is complete */ |
| EVENT = (1 << EVENT_NUM), /* DCAS, DTAS, or IFC has occurred */ |
| SPOLL = (1 << SPOLL_NUM), /* board serial polled by busmaster */ |
| RQS = (1 << RQS_NUM), /* Device requesting service */ |
| SRQI = (1 << SRQI_NUM), /* SRQ is asserted */ |
| END = (1 << END_NUM), /* EOI or EOS encountered */ |
| TIMO = (1 << TIMO_NUM), /* Time limit on I/O or wait function exceeded */ |
| ERR = (1 << ERR_NUM), /* Function call terminated on error */ |
| |
| device_status_mask = ERR | TIMO | END | CMPL | RQS, |
| board_status_mask = ERR | TIMO | END | CMPL | SPOLL | |
| EVENT | LOK | REM | CIC | ATN | TACS | LACS | DTAS | DCAS | SRQI, |
| }; |
| |
| /* End-of-string (EOS) modes for use with ibeos */ |
| |
| enum eos_flags { |
| EOS_MASK = 0x1c00, |
| REOS = 0x0400, /* Terminate reads on EOS */ |
| XEOS = 0x800, /* assert EOI when EOS char is sent */ |
| BIN = 0x1000 /* Do 8-bit compare on EOS */ |
| }; |
| |
| /* GPIB Bus Control Lines bit vector */ |
| enum bus_control_line { |
| VALID_DAV = 0x01, |
| VALID_NDAC = 0x02, |
| VALID_NRFD = 0x04, |
| VALID_IFC = 0x08, |
| VALID_REN = 0x10, |
| VALID_SRQ = 0x20, |
| VALID_ATN = 0x40, |
| VALID_EOI = 0x80, |
| VALID_ALL = 0xff, |
| BUS_DAV = 0x0100, /* DAV line status bit */ |
| BUS_NDAC = 0x0200, /* NDAC line status bit */ |
| BUS_NRFD = 0x0400, /* NRFD line status bit */ |
| BUS_IFC = 0x0800, /* IFC line status bit */ |
| BUS_REN = 0x1000, /* REN line status bit */ |
| BUS_SRQ = 0x2000, /* SRQ line status bit */ |
| BUS_ATN = 0x4000, /* ATN line status bit */ |
| BUS_EOI = 0x8000 /* EOI line status bit */ |
| }; |
| |
| enum ppe_bits { |
| PPC_DISABLE = 0x10, |
| PPC_SENSE = 0x8, /* parallel poll sense bit */ |
| PPC_DIO_MASK = 0x7 |
| }; |
| |
| enum { |
| request_service_bit = 0x40, |
| }; |
| |
| enum gpib_events { |
| EVENT_NONE = 0, |
| EVENT_DEV_TRG = 1, |
| EVENT_DEV_CLR = 2, |
| EVENT_IFC = 3 |
| }; |
| |
| #endif /* _GPIB_H */ |
| |
