staging: gpib: Add user api include files

User api include files used by drivers and userland code.
The files are also distributed with the userland package.
Since these include files have been used by many applications we
had to keep the camelCase enums, typedefs and uint8_t declarations.

Signed-off-by: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20240918121908.19366-5-dpenkler@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gpib/uapi/gpib_ioctl.h

@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/***************************************************************************
+ *    copyright            : (C) 2002 by Frank Mori Hess
+ ***************************************************************************/
+
+#ifndef _GPIB_IOCTL_H
+#define _GPIB_IOCTL_H
+
+#include <asm/ioctl.h>
+#include <linux/types.h>
+
+#define GPIB_CODE 160
+
+typedef struct {
+	char name[100];
+} board_type_ioctl_t;
+
+/* argument for read/write/command ioctls */
+typedef struct {
+	uint64_t buffer_ptr;
+	unsigned int requested_transfer_count;
+	unsigned int completed_transfer_count;
+	int end; /* end flag return for reads, end io suppression request for cmd*/
+	int handle;
+} read_write_ioctl_t;
+
+typedef struct {
+	unsigned int handle;
+	unsigned int pad;
+	int sad;
+	unsigned is_board : 1;
+} open_dev_ioctl_t;
+
+typedef struct {
+	unsigned int handle;
+} close_dev_ioctl_t;
+
+typedef struct {
+	unsigned int pad;
+	int sad;
+	uint8_t status_byte;
+} serial_poll_ioctl_t;
+
+typedef struct {
+	int eos;
+	int eos_flags;
+} eos_ioctl_t;
+
+typedef struct {
+	int handle;
+	int wait_mask;
+	int clear_mask;
+	int set_mask;
+	int ibsta;
+	int pad;
+	int sad;
+	unsigned int usec_timeout;
+} wait_ioctl_t;
+
+typedef struct {
+	uint64_t init_data_ptr;
+	int init_data_length;
+	int online;
+} online_ioctl_t;
+
+typedef struct {
+	unsigned int num_bytes;
+	unsigned int pad;
+	int sad;
+} spoll_bytes_ioctl_t;
+
+typedef struct {
+	unsigned int pad;
+	int sad;
+	int parallel_poll_configuration;
+	int autopolling;
+	int is_system_controller;
+	unsigned int t1_delay;
+	unsigned ist : 1;
+	unsigned no_7_bit_eos : 1;
+} board_info_ioctl_t;
+
+typedef struct {
+	int pci_bus;
+	int pci_slot;
+} select_pci_ioctl_t;
+
+typedef struct {
+	uint8_t config;
+	unsigned set_ist : 1;
+	unsigned clear_ist : 1;
+}	ppoll_config_ioctl_t;
+
+typedef struct {
+	unsigned int handle;
+	unsigned int pad;
+} pad_ioctl_t;
+
+typedef struct {
+	unsigned int handle;
+	int sad;
+} sad_ioctl_t;
+
+// select a piece of hardware to attach by its sysfs device path
+typedef struct {
+	char device_path[0x1000];
+} select_device_path_ioctl_t;
+
+typedef short event_ioctl_t;
+typedef int rsc_ioctl_t;
+typedef unsigned int t1_delay_ioctl_t;
+typedef short autospoll_ioctl_t;
+typedef short local_ppoll_mode_ioctl_t;
+
+// update status byte and request service
+typedef struct {
+	uint8_t status_byte;
+	int new_reason_for_service;
+} request_service2_t;
+
+/* Standard functions. */
+enum gpib_ioctl {
+	IBRD = _IOWR(GPIB_CODE, 100, read_write_ioctl_t),
+	IBWRT = _IOWR(GPIB_CODE, 101, read_write_ioctl_t),
+	IBCMD = _IOWR(GPIB_CODE, 102, read_write_ioctl_t),
+	IBOPENDEV = _IOWR(GPIB_CODE, 3, open_dev_ioctl_t),
+	IBCLOSEDEV = _IOW(GPIB_CODE, 4, close_dev_ioctl_t),
+	IBWAIT = _IOWR(GPIB_CODE, 5, wait_ioctl_t),
+	IBRPP = _IOWR(GPIB_CODE, 6, uint8_t),
+
+	IBSIC = _IOW(GPIB_CODE, 9, unsigned int),
+	IBSRE = _IOW(GPIB_CODE, 10, int),
+	IBGTS = _IO(GPIB_CODE, 11),
+	IBCAC = _IOW(GPIB_CODE, 12, int),
+	IBLINES = _IOR(GPIB_CODE, 14, short),
+	IBPAD = _IOW(GPIB_CODE, 15, pad_ioctl_t),
+	IBSAD = _IOW(GPIB_CODE, 16, sad_ioctl_t),
+	IBTMO = _IOW(GPIB_CODE, 17, unsigned int),
+	IBRSP = _IOWR(GPIB_CODE, 18, serial_poll_ioctl_t),
+	IBEOS = _IOW(GPIB_CODE, 19, eos_ioctl_t),
+	IBRSV = _IOW(GPIB_CODE, 20, uint8_t),
+	CFCBASE = _IOW(GPIB_CODE, 21, uint64_t),
+	CFCIRQ = _IOW(GPIB_CODE, 22, unsigned int),
+	CFCDMA = _IOW(GPIB_CODE, 23, unsigned int),
+	CFCBOARDTYPE = _IOW(GPIB_CODE, 24, board_type_ioctl_t),
+
+	IBMUTEX = _IOW(GPIB_CODE, 26, int),
+	IBSPOLL_BYTES = _IOWR(GPIB_CODE, 27, spoll_bytes_ioctl_t),
+	IBPPC = _IOW(GPIB_CODE, 28, ppoll_config_ioctl_t),
+	IBBOARD_INFO = _IOR(GPIB_CODE, 29, board_info_ioctl_t),
+
+	IBQUERY_BOARD_RSV = _IOR(GPIB_CODE, 31, int),
+	IBSELECT_PCI = _IOWR(GPIB_CODE, 32, select_pci_ioctl_t),
+	IBEVENT = _IOR(GPIB_CODE, 33, event_ioctl_t),
+	IBRSC = _IOW(GPIB_CODE, 34, rsc_ioctl_t),
+	IB_T1_DELAY = _IOW(GPIB_CODE, 35, t1_delay_ioctl_t),
+	IBLOC = _IO(GPIB_CODE, 36),
+
+	IBAUTOSPOLL = _IOW(GPIB_CODE, 38, autospoll_ioctl_t),
+	IBONL = _IOW(GPIB_CODE, 39, online_ioctl_t),
+	IBPP2_SET = _IOW(GPIB_CODE, 40, local_ppoll_mode_ioctl_t),
+	IBPP2_GET = _IOR(GPIB_CODE, 41, local_ppoll_mode_ioctl_t),
+	IBSELECT_DEVICE_PATH = _IOW(GPIB_CODE, 43, select_device_path_ioctl_t),
+	// 44 was IBSELECT_SERIAL_NUMBER
+	IBRSV2 = _IOW(GPIB_CODE, 45, request_service2_t)
+};
+
+#endif	/* _GPIB_IOCTL_H */