Current Path : /sys/arm/at91/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/arm/at91/at91_twiio.h |
/*- * 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: release/9.1.0/sys/arm/at91/at91_twiio.h 185265 2008-11-25 00:13:26Z imp $ */ #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 */