diff options
Diffstat (limited to 'sys/arch/sgi/dev')
| -rw-r--r-- | sys/arch/sgi/dev/com_iof.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sys/arch/sgi/dev/com_iof.c b/sys/arch/sgi/dev/com_iof.c new file mode 100644 index 00000000000..66e61bfc47a --- /dev/null +++ b/sys/arch/sgi/dev/com_iof.c @@ -0,0 +1,123 @@ +/* $OpenBSD: com_iof.c,v 1.1 2009/08/18 19:34:15 miod Exp $ */ + +/* + * Copyright (c) 2001-2004 Opsycon AB (www.opsycon.se / www.opsycon.com) + * + * 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 ``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/systm.h> +#include <sys/device.h> +#include <sys/tty.h> + +#include <machine/autoconf.h> +#include <machine/bus.h> + +#include <dev/ic/comreg.h> +#include <dev/ic/comvar.h> +#include <dev/ic/ns16550reg.h> + +#include <sgi/pci/iofvar.h> + +int com_iof_probe(struct device *, void *, void *); +void com_iof_attach(struct device *, struct device *, void *); + +struct cfattach com_iof_ca = { + sizeof(struct com_softc), com_iof_probe, com_iof_attach +}; + +extern struct cfdriver com_cd; + +int +com_iof_probe(struct device *parent, void *match, void *aux) +{ + struct iof_attach_args *iaa = aux; + bus_space_tag_t iot = iaa->iaa_memt; + bus_space_handle_t ioh; + int rv = 0, console; + + if (strcmp(iaa->iaa_name, com_cd.cd_name) != 0) + return 0; + + console = iaa->iaa_memh + iaa->iaa_base == + comconsiot->bus_base + comconsaddr; + + /* if it's in use as console, it's there. */ + if (!(console && !comconsattached)) { + if (bus_space_subregion(iot, iaa->iaa_memh, + iaa->iaa_base, COM_NPORTS, &ioh) == 0) + rv = comprobe1(iot, ioh); + } else + rv = 1; + + return rv; +} + +void +com_iof_attach(struct device *parent, struct device *self, void *aux) +{ + struct com_softc *sc = (void *)self; + struct iof_attach_args *iaa = aux; + bus_space_handle_t ioh; + int console; + + console = iaa->iaa_memh + iaa->iaa_base == + comconsiot->bus_base + comconsaddr; + + sc->sc_hwflags = 0; + sc->sc_swflags = 0; + sc->sc_frequency = 22000000 / 3; + + /* if it's in use as console, it's there. */ + if (!(console && !comconsattached)) { + sc->sc_iot = iaa->iaa_memt; + sc->sc_iobase = iaa->iaa_base; + + if (bus_space_subregion(iaa->iaa_memt, iaa->iaa_memh, + iaa->iaa_base, COM_NPORTS, &ioh) != 0) { + printf(": can't map registers\n"); + return; + } + } else { + /* + * If we are the console, reuse the existing bus_space + * information, so that comcnattach() invokes bus_space_map() + * with correct parameters. + */ + sc->sc_iot = comconsiot; + sc->sc_iobase = comconsaddr; + + if (comcnattach(sc->sc_iot, sc->sc_iobase, TTYDEF_SPEED, + sc->sc_frequency, (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8)) + panic("can't setup serial console"); + ioh = comconsioh; + } + + sc->sc_ioh = ioh; + + com_attach_subr(sc); + + iof_intr_establish(parent, iaa->iaa_dev, IPL_TTY, comintr, + (void *)sc, sc->sc_dev.dv_xname); +} |