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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright (C) 2007 Stefan Kopp, Gechingen, Germany
* Copyright (C) 2008 Novell, Inc.
* Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (C) 2015 Dave Penkler <dpenkler@gmail.com>
* Copyright (C) 2018 IVI Foundation, Inc.
*
* This file holds USB constants defined by the USB Device Class
* and USB488 Subclass Definitions for Test and Measurement devices
* published by the USB-IF.
*
* It also has the ioctl and capability definitions for the
* usbtmc kernel driver that userspace needs to know about.
*/
#ifndef __LINUX_USB_TMC_H
#define __LINUX_USB_TMC_H
#include <linux/types.h> /* __u8 etc */
/* USB TMC status values */
#define USBTMC_STATUS_SUCCESS 0x01
#define USBTMC_STATUS_PENDING 0x02
#define USBTMC_STATUS_FAILED 0x80
#define USBTMC_STATUS_TRANSFER_NOT_IN_PROGRESS 0x81
#define USBTMC_STATUS_SPLIT_NOT_IN_PROGRESS 0x82
#define USBTMC_STATUS_SPLIT_IN_PROGRESS 0x83
/* USB TMC requests values */
#define USBTMC_REQUEST_INITIATE_ABORT_BULK_OUT 1
#define USBTMC_REQUEST_CHECK_ABORT_BULK_OUT_STATUS 2
#define USBTMC_REQUEST_INITIATE_ABORT_BULK_IN 3
#define USBTMC_REQUEST_CHECK_ABORT_BULK_IN_STATUS 4
#define USBTMC_REQUEST_INITIATE_CLEAR 5
#define USBTMC_REQUEST_CHECK_CLEAR_STATUS 6
#define USBTMC_REQUEST_GET_CAPABILITIES 7
#define USBTMC_REQUEST_INDICATOR_PULSE 64
#define USBTMC488_REQUEST_READ_STATUS_BYTE 128
#define USBTMC488_REQUEST_REN_CONTROL 160
#define USBTMC488_REQUEST_GOTO_LOCAL 161
#define USBTMC488_REQUEST_LOCAL_LOCKOUT 162
struct usbtmc_request {
__u8 bRequestType;
__u8 bRequest;
__u16 wValue;
__u16 wIndex;
__u16 wLength;
} __attribute__ ((packed));
struct usbtmc_ctrlrequest {
struct usbtmc_request req;
void __user *data; /* pointer to user space */
} __attribute__ ((packed));
struct usbtmc_termchar {
__u8 term_char;
__u8 term_char_enabled;
} __attribute__ ((packed));
/*
* usbtmc_message->flags:
*/
#define USBTMC_FLAG_ASYNC 0x0001
#define USBTMC_FLAG_APPEND 0x0002
struct usbtmc_message {
__u32 transfer_size; /* size of bytes to transfer */
__u32 transferred; /* size of received/written bytes */
__u32 flags; /* bit 0: 0 = synchronous; 1 = asynchronous */
void __user *message; /* pointer to header and data in user space */
} __attribute__ ((packed));
/* Request values for USBTMC driver's ioctl entry point */
#define USBTMC_IOC_NR 91
#define USBTMC_IOCTL_INDICATOR_PULSE _IO(USBTMC_IOC_NR, 1)
#define USBTMC_IOCTL_CLEAR _IO(USBTMC_IOC_NR, 2)
#define USBTMC_IOCTL_ABORT_BULK_OUT _IO(USBTMC_IOC_NR, 3)
#define USBTMC_IOCTL_ABORT_BULK_IN _IO(USBTMC_IOC_NR, 4)
#define USBTMC_IOCTL_CLEAR_OUT_HALT _IO(USBTMC_IOC_NR, 6)
#define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7)
#define USBTMC_IOCTL_CTRL_REQUEST _IOWR(USBTMC_IOC_NR, 8, struct usbtmc_ctrlrequest)
#define USBTMC_IOCTL_GET_TIMEOUT _IOR(USBTMC_IOC_NR, 9, __u32)
#define USBTMC_IOCTL_SET_TIMEOUT _IOW(USBTMC_IOC_NR, 10, __u32)
#define USBTMC_IOCTL_EOM_ENABLE _IOW(USBTMC_IOC_NR, 11, __u8)
#define USBTMC_IOCTL_CONFIG_TERMCHAR _IOW(USBTMC_IOC_NR, 12, struct usbtmc_termchar)
#define USBTMC_IOCTL_WRITE _IOWR(USBTMC_IOC_NR, 13, struct usbtmc_message)
#define USBTMC_IOCTL_WRITE_RESULT _IOWR(USBTMC_IOC_NR, 15, __u32)
#define USBTMC488_IOCTL_GET_CAPS _IOR(USBTMC_IOC_NR, 17, unsigned char)
#define USBTMC488_IOCTL_READ_STB _IOR(USBTMC_IOC_NR, 18, unsigned char)
#define USBTMC488_IOCTL_REN_CONTROL _IOW(USBTMC_IOC_NR, 19, unsigned char)
#define USBTMC488_IOCTL_GOTO_LOCAL _IO(USBTMC_IOC_NR, 20)
#define USBTMC488_IOCTL_LOCAL_LOCKOUT _IO(USBTMC_IOC_NR, 21)
#define USBTMC488_IOCTL_TRIGGER _IO(USBTMC_IOC_NR, 22)
/* Driver encoded usb488 capabilities */
#define USBTMC488_CAPABILITY_TRIGGER 1
#define USBTMC488_CAPABILITY_SIMPLE 2
#define USBTMC488_CAPABILITY_REN_CONTROL 2
#define USBTMC488_CAPABILITY_GOTO_LOCAL 2
#define USBTMC488_CAPABILITY_LOCAL_LOCKOUT 2
#define USBTMC488_CAPABILITY_488_DOT_2 4
#define USBTMC488_CAPABILITY_DT1 16
#define USBTMC488_CAPABILITY_RL1 32
#define USBTMC488_CAPABILITY_SR1 64
#define USBTMC488_CAPABILITY_FULL_SCPI 128
#endif
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