e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
|
|
/* r3964 linediscipline for linux
|
|
*
|
|
* -----------------------------------------------------------
|
|
* Copyright by
|
|
* Philips Automation Projects
|
|
* Kassel (Germany)
|
|
* -----------------------------------------------------------
|
|
* This software may be used and distributed according to the terms of
|
|
* the GNU General Public License, incorporated herein by reference.
|
|
*
|
|
* Author:
|
|
* L. Haag
|
|
*
|
|
* $Log: r3964.h,v $
|
|
* Revision 1.4 2005/12/21 19:54:24 Kurt Huwig <kurt huwig de>
|
|
* Fixed HZ usage on 2.6 kernels
|
|
* Removed unnecessary include
|
|
*
|
|
* Revision 1.3 2001/03/18 13:02:24 dwmw2
|
|
* Fix timer usage, use spinlocks properly.
|
|
*
|
|
* Revision 1.2 2001/03/18 12:53:15 dwmw2
|
|
* Merge changes in 2.4.2
|
|
*
|
|
* Revision 1.1.1.1 1998/10/13 16:43:14 dwmw2
|
|
* This'll screw the version control
|
|
*
|
|
* Revision 1.6 1998/09/30 00:40:38 dwmw2
|
|
* Updated to use kernel's N_R3964 if available
|
|
*
|
|
* Revision 1.4 1998/04/02 20:29:44 lhaag
|
|
* select, blocking, ...
|
|
*
|
|
* Revision 1.3 1998/02/12 18:58:43 root
|
|
* fixed some memory leaks
|
|
* calculation of checksum characters
|
|
*
|
|
* Revision 1.2 1998/02/07 13:03:17 root
|
|
* ioctl read_telegram
|
|
*
|
|
* Revision 1.1 1998/02/06 19:19:43 root
|
|
* Initial revision
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef _UAPI__LINUX_N_R3964_H__
|
|
#define _UAPI__LINUX_N_R3964_H__
|
|
|
|
/* line disciplines for r3964 protocol */
|
|
|
|
|
|
/*
|
|
* Ioctl-commands
|
|
*/
|
|
|
|
#define R3964_ENABLE_SIGNALS 0x5301
|
|
#define R3964_SETPRIORITY 0x5302
|
|
#define R3964_USE_BCC 0x5303
|
|
#define R3964_READ_TELEGRAM 0x5304
|
|
|
|
/* Options for R3964_SETPRIORITY */
|
|
#define R3964_MASTER 0
|
|
#define R3964_SLAVE 1
|
|
|
|
/* Options for R3964_ENABLE_SIGNALS */
|
|
#define R3964_SIG_ACK 0x0001
|
|
#define R3964_SIG_DATA 0x0002
|
|
#define R3964_SIG_ALL 0x000f
|
|
#define R3964_SIG_NONE 0x0000
|
|
#define R3964_USE_SIGIO 0x1000
|
|
|
|
/*
|
|
* r3964 operation states:
|
|
*/
|
|
|
|
/* types for msg_id: */
|
|
enum {R3964_MSG_ACK=1, R3964_MSG_DATA };
|
|
|
|
#define R3964_MAX_MSG_COUNT 32
|
|
|
|
/* error codes for client messages */
|
|
#define R3964_OK 0 /* no error. */
|
|
#define R3964_TX_FAIL -1 /* transmission error, block NOT sent */
|
|
#define R3964_OVERFLOW -2 /* msg queue overflow */
|
|
|
|
/* the client gets this struct when calling read(fd,...): */
|
|
struct r3964_client_message {
|
|
int msg_id;
|
|
int arg;
|
|
int error_code;
|
|
};
|
|
|
|
#define R3964_MTU 256
|
|
|
|
|
|
|
|
#endif /* _UAPI__LINUX_N_R3964_H__ */
|