freebsd-src/sys/pci/ide_pcireg.h
1999-08-28 01:08:13 +00:00

64 lines
2.4 KiB
C

/*
* Copyright 1996 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*
* From: wd82371reg.h,v 1.3 1997/02/22 09:44:15 peter Exp $
* $FreeBSD$
*/
#ifndef _PCI_IDEPCIREG_H_
#define _PCI_IDEPCIREG_H_ 1
/* Ports are for controller 0. Add SFF8038_CTLR_1 for controller 1. */
#define SFF8038_CTLR_1 8
/* Contents of BMICOM register */
#define BMICOM_PORT 0
#define BMICOM_READ_WRITE 0x0008 /* false = read, true = write */
#define BMICOM_STOP_START 0x0001 /* false = stop, true = start */
/* Contents of BMISTA register */
#define BMISTA_PORT 2
#define BMISTA_SIMPLEX 0x0080 /* 1 = controller cannot DMA on both
channels simultaneously */
#define BMISTA_DMA1CAP 0x0040 /* true = drive 1 can DMA */
#define BMISTA_DMA0CAP 0x0020 /* true = drive 0 can DMA */
#define BMISTA_INTERRUPT 0x0004
#define BMISTA_DMA_ERROR 0x0002
#define BMISTA_DMA_ACTIVE 0x0001
#define BMIDTP_PORT 4 /* use outl */
struct ide_pci_prd {
u_int32_t prd_base;
u_int32_t prd_count;
};
#define PRD_EOT_BIT 0x80000000
#endif /* _PCI_IDEPCIREG_H_ */