freebsd-dev/sys/dev/gxemul/ether/gxreg.h
Juli Mallett bd6c6f4249 Add a trivial driver for the GXemul Ethernet device. Probably quite buggy and
certainly non-optimal, but enough for basic networking use.

Requested by:	rwatson
2012-05-07 04:15:46 +00:00

57 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_ETHER_GXREG_H_
#define _DEV_GXEMUL_ETHER_GXREG_H_
#define GXEMUL_ETHER_DEV_BASE (0x14000000)
#define GXEMUL_ETHER_DEV_IRQ (3)
#define GXEMUL_ETHER_DEV_MTU (0x4000)
#define GXEMUL_ETHER_DEV_BUFFER (0x0000)
#define GXEMUL_ETHER_DEV_STATUS (0x4000)
#define GXEMUL_ETHER_DEV_LENGTH (0x4010)
#define GXEMUL_ETHER_DEV_COMMAND (0x4020)
#define GXEMUL_ETHER_DEV_MAC (0x4040)
#define GXEMUL_ETHER_DEV_FUNCTION(f) \
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_ETHER_DEV_BASE + (f))
#define GXEMUL_ETHER_DEV_READ(f) \
(volatile uint64_t)*GXEMUL_ETHER_DEV_FUNCTION(f)
#define GXEMUL_ETHER_DEV_WRITE(f, v) \
*GXEMUL_ETHER_DEV_FUNCTION(f) = (v)
#define GXEMUL_ETHER_DEV_STATUS_RX_OK (0x01)
#define GXEMUL_ETHER_DEV_STATUS_RX_MORE (0x02)
#define GXEMUL_ETHER_DEV_COMMAND_RX (0x00)
#define GXEMUL_ETHER_DEV_COMMAND_TX (0x01)
#endif /* !_DEV_GXEMUL_ETHER_GXREG_H_ */