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658f24f452
Add USBTMC_IOCTL_CTRL_REQUEST to send arbitrary requests on the control pipe. Used by specific applications of IVI Foundation, Inc. to implement VISA API functions: viUsbControlIn/Out. The maximum length of control request is set to 4k. This ioctl does not support compatibility for 32 bit applications running on 64 bit systems. However all other convenient ioctls of the USBTMC driver can still be used in 32 bit applications as well. Note that 32 bit applications running on 32 bit target systems are not affected by this limitation. Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com> Reviewed-by: Steve Bayless <steve_bayless@keysight.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
96 lines
3.6 KiB
C
96 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2007 Stefan Kopp, Gechingen, Germany
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* Copyright (C) 2008 Novell, Inc.
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* Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
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* Copyright (C) 2015 Dave Penkler <dpenkler@gmail.com>
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* Copyright (C) 2018 IVI Foundation, Inc.
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*
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* This file holds USB constants defined by the USB Device Class
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* and USB488 Subclass Definitions for Test and Measurement devices
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* published by the USB-IF.
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*
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* It also has the ioctl and capability definitions for the
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* usbtmc kernel driver that userspace needs to know about.
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*/
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#ifndef __LINUX_USB_TMC_H
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#define __LINUX_USB_TMC_H
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#include <linux/types.h> /* __u8 etc */
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/* USB TMC status values */
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#define USBTMC_STATUS_SUCCESS 0x01
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#define USBTMC_STATUS_PENDING 0x02
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#define USBTMC_STATUS_FAILED 0x80
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#define USBTMC_STATUS_TRANSFER_NOT_IN_PROGRESS 0x81
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#define USBTMC_STATUS_SPLIT_NOT_IN_PROGRESS 0x82
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#define USBTMC_STATUS_SPLIT_IN_PROGRESS 0x83
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/* USB TMC requests values */
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#define USBTMC_REQUEST_INITIATE_ABORT_BULK_OUT 1
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#define USBTMC_REQUEST_CHECK_ABORT_BULK_OUT_STATUS 2
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#define USBTMC_REQUEST_INITIATE_ABORT_BULK_IN 3
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#define USBTMC_REQUEST_CHECK_ABORT_BULK_IN_STATUS 4
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#define USBTMC_REQUEST_INITIATE_CLEAR 5
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#define USBTMC_REQUEST_CHECK_CLEAR_STATUS 6
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#define USBTMC_REQUEST_GET_CAPABILITIES 7
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#define USBTMC_REQUEST_INDICATOR_PULSE 64
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#define USBTMC488_REQUEST_READ_STATUS_BYTE 128
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#define USBTMC488_REQUEST_REN_CONTROL 160
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#define USBTMC488_REQUEST_GOTO_LOCAL 161
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#define USBTMC488_REQUEST_LOCAL_LOCKOUT 162
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struct usbtmc_request {
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__u8 bRequestType;
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__u8 bRequest;
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__u16 wValue;
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__u16 wIndex;
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__u16 wLength;
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} __attribute__ ((packed));
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struct usbtmc_ctrlrequest {
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struct usbtmc_request req;
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void __user *data; /* pointer to user space */
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} __attribute__ ((packed));
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struct usbtmc_termchar {
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__u8 term_char;
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__u8 term_char_enabled;
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} __attribute__ ((packed));
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/* Request values for USBTMC driver's ioctl entry point */
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#define USBTMC_IOC_NR 91
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#define USBTMC_IOCTL_INDICATOR_PULSE _IO(USBTMC_IOC_NR, 1)
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#define USBTMC_IOCTL_CLEAR _IO(USBTMC_IOC_NR, 2)
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#define USBTMC_IOCTL_ABORT_BULK_OUT _IO(USBTMC_IOC_NR, 3)
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#define USBTMC_IOCTL_ABORT_BULK_IN _IO(USBTMC_IOC_NR, 4)
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#define USBTMC_IOCTL_CLEAR_OUT_HALT _IO(USBTMC_IOC_NR, 6)
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#define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7)
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#define USBTMC_IOCTL_CTRL_REQUEST _IOWR(USBTMC_IOC_NR, 8, struct usbtmc_ctrlrequest)
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#define USBTMC_IOCTL_GET_TIMEOUT _IOR(USBTMC_IOC_NR, 9, __u32)
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#define USBTMC_IOCTL_SET_TIMEOUT _IOW(USBTMC_IOC_NR, 10, __u32)
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#define USBTMC_IOCTL_EOM_ENABLE _IOW(USBTMC_IOC_NR, 11, __u8)
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#define USBTMC_IOCTL_CONFIG_TERMCHAR _IOW(USBTMC_IOC_NR, 12, struct usbtmc_termchar)
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#define USBTMC488_IOCTL_GET_CAPS _IOR(USBTMC_IOC_NR, 17, unsigned char)
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#define USBTMC488_IOCTL_READ_STB _IOR(USBTMC_IOC_NR, 18, unsigned char)
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#define USBTMC488_IOCTL_REN_CONTROL _IOW(USBTMC_IOC_NR, 19, unsigned char)
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#define USBTMC488_IOCTL_GOTO_LOCAL _IO(USBTMC_IOC_NR, 20)
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#define USBTMC488_IOCTL_LOCAL_LOCKOUT _IO(USBTMC_IOC_NR, 21)
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#define USBTMC488_IOCTL_TRIGGER _IO(USBTMC_IOC_NR, 22)
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/* Driver encoded usb488 capabilities */
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#define USBTMC488_CAPABILITY_TRIGGER 1
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#define USBTMC488_CAPABILITY_SIMPLE 2
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#define USBTMC488_CAPABILITY_REN_CONTROL 2
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#define USBTMC488_CAPABILITY_GOTO_LOCAL 2
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#define USBTMC488_CAPABILITY_LOCAL_LOCKOUT 2
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#define USBTMC488_CAPABILITY_488_DOT_2 4
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#define USBTMC488_CAPABILITY_DT1 16
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#define USBTMC488_CAPABILITY_RL1 32
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#define USBTMC488_CAPABILITY_SR1 64
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#define USBTMC488_CAPABILITY_FULL_SCPI 128
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#endif
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