vchiq_ioctl.h

  1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
  2/* Copyright (c) 2010-2012 Broadcom. All rights reserved. */
  3
  4#ifndef VCHIQ_IOCTLS_H
  5#define VCHIQ_IOCTLS_H
  6
  7#include <linux/ioctl.h>
  8#include <linux/raspberrypi/vchiq.h>
  9
 10#define VCHIQ_IOC_MAGIC 0xc4
 11#define VCHIQ_INVALID_HANDLE (~0)
 12
 13struct vchiq_service_params {
 14	int fourcc;
 15	int __user (*callback)(enum vchiq_reason reason,
 16			       struct vchiq_header *header,
 17			       unsigned int handle,
 18			       void *bulk_userdata);
 19	void __user *userdata;
 20	short version;       /* Increment for non-trivial changes */
 21	short version_min;   /* Update for incompatible changes */
 22};
 23
 24struct vchiq_create_service {
 25	struct vchiq_service_params params;
 26	int is_open;
 27	int is_vchi;
 28	unsigned int handle;       /* OUT */
 29};
 30
 31struct vchiq_queue_message {
 32	unsigned int handle;
 33	unsigned int count;
 34	const struct vchiq_element __user *elements;
 35};
 36
 37struct vchiq_queue_bulk_transfer {
 38	unsigned int handle;
 39	void __user *data;
 40	unsigned int size;
 41	void __user *userdata;
 42	enum vchiq_bulk_mode mode;
 43};
 44
 45struct vchiq_completion_data {
 46	enum vchiq_reason reason;
 47	struct vchiq_header __user *header;
 48	void __user *service_userdata;
 49	void __user *cb_userdata;
 50};
 51
 52struct vchiq_await_completion {
 53	unsigned int count;
 54	struct vchiq_completion_data __user *buf;
 55	unsigned int msgbufsize;
 56	unsigned int msgbufcount; /* IN/OUT */
 57	void * __user *msgbufs;
 58};
 59
 60struct vchiq_dequeue_message {
 61	unsigned int handle;
 62	int blocking;
 63	unsigned int bufsize;
 64	void __user *buf;
 65};
 66
 67struct vchiq_get_config {
 68	unsigned int config_size;
 69	struct vchiq_config __user *pconfig;
 70};
 71
 72struct vchiq_set_service_option {
 73	unsigned int handle;
 74	enum vchiq_service_option option;
 75	int value;
 76};
 77
 78struct vchiq_dump_mem {
 79	void     __user *virt_addr;
 80	size_t    num_bytes;
 81};
 82
 83#define VCHIQ_IOC_CONNECT              _IO(VCHIQ_IOC_MAGIC,   0)
 84#define VCHIQ_IOC_SHUTDOWN             _IO(VCHIQ_IOC_MAGIC,   1)
 85#define VCHIQ_IOC_CREATE_SERVICE \
 86	_IOWR(VCHIQ_IOC_MAGIC, 2, struct vchiq_create_service)
 87#define VCHIQ_IOC_REMOVE_SERVICE       _IO(VCHIQ_IOC_MAGIC,   3)
 88#define VCHIQ_IOC_QUEUE_MESSAGE \
 89	_IOW(VCHIQ_IOC_MAGIC,  4, struct vchiq_queue_message)
 90#define VCHIQ_IOC_QUEUE_BULK_TRANSMIT \
 91	_IOWR(VCHIQ_IOC_MAGIC, 5, struct vchiq_queue_bulk_transfer)
 92#define VCHIQ_IOC_QUEUE_BULK_RECEIVE \
 93	_IOWR(VCHIQ_IOC_MAGIC, 6, struct vchiq_queue_bulk_transfer)
 94#define VCHIQ_IOC_AWAIT_COMPLETION \
 95	_IOWR(VCHIQ_IOC_MAGIC, 7, struct vchiq_await_completion)
 96#define VCHIQ_IOC_DEQUEUE_MESSAGE \
 97	_IOWR(VCHIQ_IOC_MAGIC, 8, struct vchiq_dequeue_message)
 98#define VCHIQ_IOC_GET_CLIENT_ID        _IO(VCHIQ_IOC_MAGIC,   9)
 99#define VCHIQ_IOC_GET_CONFIG \
100	_IOWR(VCHIQ_IOC_MAGIC, 10, struct vchiq_get_config)
101#define VCHIQ_IOC_CLOSE_SERVICE        _IO(VCHIQ_IOC_MAGIC,   11)
102#define VCHIQ_IOC_USE_SERVICE          _IO(VCHIQ_IOC_MAGIC,   12)
103#define VCHIQ_IOC_RELEASE_SERVICE      _IO(VCHIQ_IOC_MAGIC,   13)
104#define VCHIQ_IOC_SET_SERVICE_OPTION \
105	_IOW(VCHIQ_IOC_MAGIC,  14, struct vchiq_set_service_option)
106#define VCHIQ_IOC_DUMP_PHYS_MEM \
107	_IOW(VCHIQ_IOC_MAGIC,  15, struct vchiq_dump_mem)
108#define VCHIQ_IOC_LIB_VERSION          _IO(VCHIQ_IOC_MAGIC,   16)
109#define VCHIQ_IOC_CLOSE_DELIVERED      _IO(VCHIQ_IOC_MAGIC,   17)
110#define VCHIQ_IOC_MAX                  17
111
112#endif