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remoteproc_cdev.h (1101B) - Raw

      1 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
      2 /*
      3  * IOCTLs for Remoteproc's character device interface.
      4  *
      5  * Copyright (c) 2020, The Linux Foundation. All rights reserved.
      6  */
      7 
      8 #ifndef _REMOTEPROC_CDEV_H_
      9 #define _REMOTEPROC_CDEV_H_
     10 
     11 #include <linux/ioctl.h>
     12 #include <linux/types.h>
     13 
     14 #define RPROC_MAGIC	0xB7
     15 
     16 /*
     17  * The RPROC_SET_SHUTDOWN_ON_RELEASE ioctl allows to enable/disable the shutdown of a remote
     18  * processor automatically when the controlling userpsace closes the char device interface.
     19  *
     20  * input parameter: integer
     21  *   0		: disable automatic shutdown
     22  *   other	: enable automatic shutdown
     23  */
     24 #define RPROC_SET_SHUTDOWN_ON_RELEASE _IOW(RPROC_MAGIC, 1, __s32)
     25 
     26 /*
     27  * The RPROC_GET_SHUTDOWN_ON_RELEASE ioctl gets information about whether the automatic shutdown of
     28  * a remote processor is enabled or disabled when the controlling userspace closes the char device
     29  * interface.
     30  *
     31  * output parameter: integer
     32  *   0		: automatic shutdown disable
     33  *   other	: automatic shutdown enable
     34  */
     35 #define RPROC_GET_SHUTDOWN_ON_RELEASE _IOR(RPROC_MAGIC, 2, __s32)
     36 
     37 #endif