diff options
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/sparc64/dev/com_ebus.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/com_ebus.c b/sys/arch/sparc64/dev/com_ebus.c new file mode 100644 index 00000000000..1344f13c3a5 --- /dev/null +++ b/sys/arch/sparc64/dev/com_ebus.c @@ -0,0 +1,171 @@ +/* $OpenBSD: com_ebus.c,v 1.1 2001/09/29 03:13:49 art Exp $ */ +/* $NetBSD: com_ebus.c,v 1.6 2001/07/24 19:27:10 eeh Exp $ */ + +/* + * Copyright (c) 1999, 2000 Matthew R. Green + * 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. 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. + */ + +/* + * NS Super I/O PC87332VLJ "com" to ebus attachment + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/device.h> +#include <sys/tty.h> +#include <sys/conf.h> + +#include <machine/bus.h> +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <sparc64/dev/ebusreg.h> +#include <sparc64/dev/ebusvar.h> + +#include <dev/cons.h> +#include <dev/ic/comvar.h> +#include <dev/sun/kbd_ms_ttyvar.h> + +#include "kbd.h" +#include "ms.h" + +cdev_decl(com); /* XXX this belongs elsewhere */ + +int com_ebus_match __P((struct device *, void *, void *)); +void com_ebus_attach __P((struct device *, struct device *, void *)); +int com_ebus_isconsole __P((int node)); + +struct cfattach com_ebus_ca = { + sizeof(struct com_softc), com_ebus_match, com_ebus_attach +}; + +static char *com_names[] = { + "su", + "su_pnp", + NULL +}; + +int +com_ebus_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct ebus_attach_args *ea = aux; + int i; + + for (i=0; com_names[i]; i++) + if (strcmp(ea->ea_name, com_names[i]) == 0) + return (1); + + if (strcmp(ea->ea_name, "serial") == 0) { + char compat[80]; + + /* Could be anything. */ + if ((i = OF_getproplen(ea->ea_node, "compatible")) && + OF_getprop(ea->ea_node, "compatible", compat, + sizeof(compat)) == i) { + if (strcmp(compat, "su16550") == 0 || + strcmp(compat, "su") == 0) { + return (1); + } + } + } + return (0); +} + +int +com_ebus_isconsole(node) + int node; +{ + if (node == OF_instance_to_package(OF_stdin())) { + return (1); + } + + if (node == OF_instance_to_package(OF_stdout())) { + return (1); + } + return (0); +} + +/* XXXART - was 1846200 */ +#define BAUD_BASE (1843200) + +void +com_ebus_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct com_softc *sc = (void *)self; + struct ebus_attach_args *ea = aux; + int i; + + sc->sc_iot = ea->ea_bustag; + sc->sc_iobase = EBUS_PADDR_FROM_REG(&ea->ea_regs[0]); + /* + * Addresses that shoud be supplied by the prom: + * - normal com registers + * - ns873xx configuration registers + * - DMA space + * The `com' driver does not use DMA accesses, so we can + * ignore that for now. We should enable the com port in + * the ns873xx registers here. XXX + * + * Use the prom address if there. + */ + if (ea->ea_nvaddrs) + sc->sc_ioh = (bus_space_handle_t)ea->ea_vaddrs[0]; + else if (ebus_bus_map(sc->sc_iot, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), + ea->ea_regs[0].size, + BUS_SPACE_MAP_LINEAR, + 0, &sc->sc_ioh) != 0) { + printf(": can't map register space\n"); + return; + } + sc->sc_hwflags = 0; + sc->sc_swflags = 0; + sc->sc_frequency = BAUD_BASE; + + for (i = 0; i < ea->ea_nintrs; i++) + bus_intr_establish(ea->ea_bustag, ea->ea_intrs[i], + IPL_TTY, 0, comintr, sc); + + if (com_ebus_isconsole(ea->ea_node)) { + comconsioh = sc->sc_ioh; + /* Attach com as the console. */ + if (comcnattach(sc->sc_iot, sc->sc_iobase, 9600, + sc->sc_frequency, + ((TTYDEF_CFLAG & ~(CSIZE | PARENB))|CREAD | CS8 | HUPCL))) { + printf("Error: comcnattach failed\n"); + } + } + /* Now attach the driver */ + com_attach_subr(sc); +} + |