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| -rw-r--r-- | sys/include/sys/sio.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sys/include/sys/sio.h b/sys/include/sys/sio.h new file mode 100644 index 0000000..6f13a09 --- /dev/null +++ b/sys/include/sys/sio.h @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Hyra nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _SIO_H_ +#define _SIO_H_ + +#include <sys/types.h> + +#if defined(_KERNEL) +enum sio_type { + SIO_NONE, /* None specified */ + SIO_USER, /* Userspace related transaction */ + SIO_KERN, /* Kernel transaction */ +}; + +/* + * System I/O transaction + * + * This structure describes a system I/O transaction + * and contains common fields that are used + * with system I/O. + */ +struct sio_txn { + void *buf; /* Source/dest buffer */ + off_t offset; /* Transfer offset */ + size_t len; /* Length in bytes */ + enum sio_type type; /* Transaction type */ +}; + +#endif /* defined(_KERNEL) */ +#endif /* !_SIO_H_ */ |