mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-28 11:57:28 +00:00
82645a84eb
better or worse. Ok'd by folks that have additional copyrights to the files in cases where there's joint authorship.
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*-
|
|
* Copyright (c) 2006 M. Warner Losh. 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 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 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 _ARM_AT91_AT91_TWIIO_H
|
|
#define _ARM_AT91_AT91_TWIIO_H
|
|
|
|
#include <sys/ioccom.h>
|
|
|
|
struct at91_twi_io
|
|
{
|
|
int dadr; /* Device address */
|
|
int type; /* read/write */
|
|
#define TWI_IO_READ_MASTER 1
|
|
#define TWI_IO_WRITE_MASTER 2
|
|
int iadrsz; /* Internal addr size */
|
|
uint32_t iadr; /* Interbak addr */
|
|
size_t xfer_len; /* Size to transfer */
|
|
caddr_t xfer_buf; /* buffer for xfer */
|
|
};
|
|
|
|
struct at91_twi_clock
|
|
{
|
|
int ckdiv; /* Clock divider */
|
|
int high_rate; /* rate of clock high period */
|
|
int low_rate; /* rate of clock low period */
|
|
};
|
|
|
|
/** TWIIOCXFER: Do a two-wire transfer
|
|
*/
|
|
#define TWIIOCXFER _IOW('x', 1, struct at91_twi_io)
|
|
|
|
/** TWIIOCSETCLOCK: Sets the clocking parameters for this operation.
|
|
*/
|
|
#define TWIIOCSETCLOCK _IOW('x', 2, struct at91_twi_clock)
|
|
|
|
#endif /* !_ARM_AT91_AT91_TWIIO_H */
|
|
|
|
|