diff options
Diffstat (limited to 'sys/arch/mvme88k/dev/vmes.c')
| -rw-r--r-- | sys/arch/mvme88k/dev/vmes.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/dev/vmes.c b/sys/arch/mvme88k/dev/vmes.c new file mode 100644 index 00000000000..9bfa8c6dc84 --- /dev/null +++ b/sys/arch/mvme88k/dev/vmes.c @@ -0,0 +1,177 @@ +/* $NetBSD$ */ + +/* + * Copyright (c) 1995 Theo de Raadt + * 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 Theo de Raadt + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/param.h> +#include <sys/conf.h> +#include <sys/proc.h> +#include <sys/user.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <machine/autoconf.h> +#include <machine/cpu.h> +#include <mvme88k/dev/vme.h> + +/* + * The VMES driver deals with D16 transfers on the VME bus. The number + * of address bits (A16, A24, A32) is irrelevant since the mapping + * functions will decide how many address bits are relevant. + */ + +void vmesattach __P((struct device *, struct device *, void *)); +int vmesmatch __P((struct device *, void *, void *)); + +struct vmessoftc { + struct device sc_dev; + struct vmesoftc *sc_vme; +}; + +struct cfattach vmes_ca = { + sizeof(struct vmessoftc), vmesmatch, vmesattach +}; + +struct cfdriver vmes_cd = { + NULL, "vmes", DV_DULL, 0 +}; + + +int +vmesmatch(parent, cf, args) + struct device *parent; + void *cf, *args; +{ + return (1); +} + +int +vmesscan(parent, child, args) + struct device *parent; + void *child, *args; +{ + return (vmescan(parent, child, args, BUS_VMES)); +} + +void +vmesattach(parent, self, args) + struct device *parent, *self; + void *args; +{ + struct vmessoftc *sc = (struct vmessoftc *)self; + + printf("\n"); + + sc->sc_vme = (struct vmesoftc *)parent; + + config_search(vmesscan, self, args); +} + +/*ARGSUSED*/ +int +vmesopen(dev, flag, mode) + dev_t dev; + int flag, mode; +{ + if (minor(dev) >= vmes_cd.cd_ndevs || + vmes_cd.cd_devs[minor(dev)] == NULL) + return (ENODEV); + return (0); +} + +/*ARGSUSED*/ +int +vmesclose(dev, flag, mode) + dev_t dev; + int flag, mode; +{ + + return (0); +} + +/*ARGSUSED*/ +int +vmesioctl(dev, cmd, data, flag, p) + dev_t dev; + caddr_t data; + int cmd, flag; + struct proc *p; +{ + int unit = minor(dev); + struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit]; + int error = 0; + + switch (cmd) { + default: + error = ENOTTY; + break; + } + return (error); +} + +int +vmesread(dev, uio, flags) + dev_t dev; + struct uio *uio; + int flags; +{ + int unit = minor(dev); + struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit]; + + return (vmerw(sc->sc_vme, uio, flags, BUS_VMES)); +} + +int +vmeswrite(dev, uio, flags) + dev_t dev; + struct uio *uio; + int flags; +{ + int unit = minor(dev); + struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit]; + + return (vmerw(sc->sc_vme, uio, flags, BUS_VMES)); +} + +int +vmesmmap(dev, off, prot) + dev_t dev; + int off, prot; +{ + int unit = minor(dev); + struct vmessoftc *sc = (struct vmessoftc *) vmes_cd.cd_devs[unit]; + caddr_t pa; + + pa = vmepmap(sc->sc_vme, (caddr_t)off, NBPG, BUS_VMES); + printf("vmes %x pa %x\n", off, pa); + if (pa == NULL) + return (-1); + return (m88k_btop(pa)); +} |