os161/kern/dev/lamebus/emu_att.c
2015-12-23 00:50:04 +00:00

67 lines
2.3 KiB
C

/*
* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
* The President and Fellows of Harvard College.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY 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 UNIVERSITY 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.
*/
/*
* Code for probe/attach of the emu device to lamebus.
*/
#include <types.h>
#include <lib.h>
#include <lamebus/lamebus.h>
#include <lamebus/emu.h>
#include "autoconf.h"
/* Lowest revision we support */
#define LOW_VERSION 1
struct emu_softc *
attach_emu_to_lamebus(int emuno, struct lamebus_softc *sc)
{
struct emu_softc *es;
int slot = lamebus_probe(sc, LB_VENDOR_CS161, LBCS161_EMUFS,
LOW_VERSION, NULL);
if (slot < 0) {
return NULL;
}
es = kmalloc(sizeof(struct emu_softc));
if (es==NULL) {
return NULL;
}
es->e_busdata = sc;
es->e_buspos = slot;
es->e_unit = emuno;
lamebus_mark(sc, slot);
lamebus_attach_interrupt(sc, slot, es, emu_irq);
return es;
}