1 files changed, 104 insertions, 0 deletions
diff --git a/include/uapi/linux/gpib.h b/include/uapi/linux/gpib.h
new file mode 100644
index 000000000000..2a7f5eeb9777
--- /dev/null
+++ b/include/uapi/linux/gpib.h
@@ -0,0 +1,104 @@
+/* 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 */
+