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[spigen] add the userland ioctl API for spigen.

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adrian 2016-05-27 01:40:33 +00:00
parent fae9f40b00
commit 921832baca
1 changed files with 52 additions and 0 deletions
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sys/sys/spigenio.h Normal file
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/*-
* Copyright (c) 2000 Doug Rabson
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _SYS_SPIGENIO_H_
#define _SYS_SPIGENIO_H_
#include <sys/_iovec.h>
struct spigen_transfer {
struct iovec st_command; /* master to slave */
struct iovec st_data; /* slave to master and/or master to slave */
};
struct spigen_transfer_mmapped {
size_t stm_command_length; /* at offset 0 in mmap(2) area */
size_t stm_data_length; /* at offset stm_command_length */
};
#define SPIGENIOC_BASE 'S'
#define SPIGENIOC_TRANSFER _IOW(SPIGENIOC_BASE, 0, \
struct spigen_transfer)
#define SPIGENIOC_TRANSFER_MMAPPED _IOW(SPIGENIOC_BASE, 1, \
struct spigen_transfer_mmapped)
#define SPIGENIOC_GET_CLOCK_SPEED _IOR(SPIGENIOC_BASE, 2, uint32_t)
#define SPIGENIOC_SET_CLOCK_SPEED _IOW(SPIGENIOC_BASE, 3, uint32_t)
#endif /* !_SYS_SPIGENIO_H_ */