freebsd-dev/sys/dev/gxemul/disk/gxemul_diskreg.h
Juli Mallett ffbec96825 Add a driver for the GXemul test machine's disk controller and disk devices.
Prefer it to using an md device in the GXEMUL kernel configuration.

Requested by:	rwatson, theraven
2012-05-06 08:28:08 +00:00

58 lines
2.3 KiB
C

/*-
* Copyright (c) 2008-2012 Juli Mallett <jmallett@FreeBSD.org>
* 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 _DEV_GXEMUL_DISK_GXEMUL_DISK_H_
#define _DEV_GXEMUL_DISK_GXEMUL_DISK_H_
#define GXEMUL_DISK_DEV_BASE (0x13000000)
#define GXEMUL_DISK_DEV_BLOCKSIZE (0x0200)
#define GXEMUL_DISK_DEV_ID_START (0x0000)
#define GXEMUL_DISK_DEV_ID_END (0x0100)
#define GXEMUL_DISK_DEV_OFFSET (0x0000)
#define GXEMUL_DISK_DEV_DISKID (0x0010)
#define GXEMUL_DISK_DEV_START (0x0020)
#define GXEMUL_DISK_DEV_STATUS (0x0030)
#define GXEMUL_DISK_DEV_BLOCK (0x4000)
#define GXEMUL_DISK_DEV_FUNCTION(f) \
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_DISK_DEV_BASE + (f))
#define GXEMUL_DISK_DEV_READ(f) \
(volatile uint64_t)*GXEMUL_DISK_DEV_FUNCTION(f)
#define GXEMUL_DISK_DEV_WRITE(f, v) \
*GXEMUL_DISK_DEV_FUNCTION(f) = (v)
#define GXEMUL_DISK_DEV_START_READ (0x00)
#define GXEMUL_DISK_DEV_START_WRITE (0x01)
#define GXEMUL_DISK_DEV_STATUS_FAILURE (0x00)
#endif /* !_DEV_GXEMUL_DISK_GXEMUL_DISK_H_ */