NetBSD Driver Template?

/*  $NetBSD: pcd.c,v 0.01 2014/06/23 05:20:28 wjones Exp $  */

/*
 * Copyright (c) 2014 William D. Jones.  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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by Charles M. Hannum.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Copyright 2014 by William D. Jones (data part)
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This software was developed by Holger Veit and Brian Moore
 *      for use with "386BSD" and similar operating systems.
 *    "Similar operating systems" includes mainly non-profit oriented
 *    systems for research and education, including but not restricted to
 *    "NetBSD", "FreeBSD", "Mach" (by CMU).
 * 4. Neither the name of the developer(s) nor the name "386BSD"
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``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 DEVELOPER(S) 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pcd.c,v 0.9 2014/06/23 05:20:28 wjones Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/uio.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
#include <sys/conf.h>

#include <sys/bus.h>


static int pcd_match(device_t parent, cfdata_t match, void *aux);
static void pcd_attach(device_t parent, device_t self, void *aux);
static int pcd_activate(device_t self, enum devact act);

struct pcd_softc {
             device_t sc_dev;                /* generic device info */
             /* device-specific state */
};

//CFATTACH_DECL does not work, per ftp://ftp.netbsd.org/pub/NetBSD/misc/ddwg/NetBSD-driver_writing-1.0.1e.pdf
CFATTACH_DECL_NEW(pcd, sizeof(struct pcd_softc), pcd_match, pcd_attach, NULL, pcd_activate);

dev_type_open(pcdopen);
dev_type_close(pcdclose);
dev_type_read(pcdread);
dev_type_write(pcdwrite);
dev_type_ioctl(pcdioctl);
dev_type_strategy(pcdstrategy);
dev_type_dump(pcddump);
dev_type_size(pcdsize);

//Need to include more than just the 3 header files that driver(9) specifies.
const struct bdevsw pcd_bdevsw = {
    .d_open = pcdopen,
    .d_close = pcdclose,
    .d_strategy = pcdstrategy,
    .d_ioctl = pcdioctl,
    .d_dump = pcddump,
    .d_psize = pcdsize,
    .d_flag = D_DISK
};

const struct cdevsw pcd_cdevsw = {
    .d_open = pcdopen,
    .d_close = pcdclose,
    .d_read = pcdread,
    .d_write = pcdwrite,
    .d_ioctl = pcdioctl,
    .d_stop = nostop,
    .d_tty = notty,
    .d_poll = nopoll,
    .d_mmap = nommap,
    .d_kqfilter = nokqfilter,
    .d_flag = D_DISK
};

/* driver(9) says return EOPNOTSUPP if activation is not supported. */
int
pcd_activate(device_t self, enum devact act)
{
    return EOPNOTSUPP;
}

int
pcd_match(device_t parent, cfdata_t match, void *aux)
{
    return 0;
}

void
pcd_attach(device_t parent, device_t self, void *aux)
{
    //struct isa_attach_args *ia = aux;
    return;
}


/* I can't find the man page which discusses the paramater variable naming
convention, so I'm just using what I see every other driver do! */
int
pcdopen(dev_t dev, int flags, int mode, struct lwp *l)
{
    return 0;
}

int
pcdclose(dev_t dev, int flags, int mode, struct lwp *l)
{
    return 0;
}

int
pcdread(dev_t dev, struct uio *uio, int flags)
{
    return 0;
}

int
pcdwrite(dev_t dev, struct uio *uio, int flags)
{
    return 0;
}

int
pcdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
{
    return 0;
}

void
pcdstrategy(struct buf *bp)
{
    return;
}

int
pcddump(dev_t dev, daddr_t blkno, void *va, size_t size)
{
    return 0;
}

int
pcdsize(dev_t dev)
{
    return 0;
}