diff options
Diffstat (limited to 'sys/arch/sparc64')
| -rw-r--r-- | sys/arch/sparc64/dev/upa.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/upa.c b/sys/arch/sparc64/dev/upa.c new file mode 100644 index 00000000000..cc1f7d2b4c3 --- /dev/null +++ b/sys/arch/sparc64/dev/upa.c @@ -0,0 +1,226 @@ +/* $OpenBSD: upa.c,v 1.1 2002/06/11 10:49:14 jason Exp $ */ + +/* + * Copyright (c) 2002 Jason L. Wright (jason@thought.net) + * 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 Jason L. Wright + * 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. + * + * Effort sponsored in part by the Defense Advanced Research Projects + * Agency (DARPA) and Air Force Research Laboratory, Air Force + * Materiel Command, USAF, under agreement number F30602-01-2-0537. + * + */ + +/* + * + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/conf.h> +#include <sys/timeout.h> +#include <sys/malloc.h> + +#define _SPARC_BUS_DMA_PRIVATE +#include <machine/bus.h> +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <sparc64/dev/ebusreg.h> +#include <sparc64/dev/ebusvar.h> + +#include "pckbd.h" +#if NPCKBD > 0 +#include <dev/ic/pckbcvar.h> +#include <dev/pckbc/pckbdvar.h> +#endif + +struct upa_range { + u_int64_t ur_space; + u_int64_t ur_addr; + u_int64_t ur_len; +}; + +struct upa_softc { + struct device sc_dev; + bus_space_tag_t sc_bt; + bus_space_handle_t sc_reg[3]; + struct upa_range *sc_range; + int sc_node; + int sc_nrange; + bus_space_tag_t sc_cbt; +}; + +int upa_match(struct device *, void *, void *); +void upa_attach(struct device *, struct device *, void *); + +struct cfattach upa_ca = { + sizeof(struct upa_softc), upa_match, upa_attach +}; + +struct cfdriver upa_cd = { + NULL, "upa", DV_DULL +}; + +int upa_print(void *, const char *); +bus_space_tag_t upa_alloc_bus_tag(struct upa_softc *); +int __upa_bus_map(bus_space_tag_t, bus_type_t, bus_addr_t, + bus_size_t, int, vaddr_t, bus_space_handle_t *); + +int +upa_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct mainbus_attach_args *ma = aux; + + if (strcmp(ma->ma_name, "upa") == 0) + return (1); + return (0); +} + +void +upa_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct upa_softc *sc = (void *)self; + struct mainbus_attach_args *ma = aux; + int i, node; + + sc->sc_bt = ma->ma_bustag; + sc->sc_node = ma->ma_node; + + for (i = 0; i < 3; i++) { + if (i >= ma->ma_nreg) { + printf(": no register %d\n", i); + return; + } + if (bus_space_map(sc->sc_bt, ma->ma_reg[i].ur_paddr, + ma->ma_reg[i].ur_len, 0, &sc->sc_reg[i])) { + printf(": failed to map reg%d\n", i); + return; + } + } + + if (getprop(sc->sc_node, "ranges", sizeof(struct upa_range), + &sc->sc_nrange, (void **)&sc->sc_range)) + panic("upa: can't get ranges"); + + printf("\n"); + + sc->sc_cbt = upa_alloc_bus_tag(sc); + + for (node = OF_child(sc->sc_node); node; node = OF_peer(node)) { + char buf[32]; + struct mainbus_attach_args map; + + bzero(&map, sizeof(map)); + if (OF_getprop(node, "device_type", buf, sizeof(buf)) <= 0) + continue; + if (getprop(node, "reg", sizeof(*map.ma_reg), + &map.ma_nreg, (void **)&map.ma_reg) != 0) + continue; + if (OF_getprop(node, "name", buf, sizeof(buf)) <= 0) + continue; + map.ma_node = node; + map.ma_name = buf; + map.ma_bustag = sc->sc_cbt; + map.ma_dmatag = ma->ma_dmatag; + config_found(&sc->sc_dev, &map, upa_print); + } +} + +int +upa_print(args, name) + void *args; + const char *name; +{ + struct mainbus_attach_args *ma = args; + + if (name) + printf("%s at %s", ma->ma_name, name); + return (UNCONF); +} + +bus_space_tag_t +upa_alloc_bus_tag(sc) + struct upa_softc *sc; +{ + bus_space_tag_t bt; + + bt = (bus_space_tag_t)malloc(sizeof(struct sparc_bus_space_tag), + M_DEVBUF, M_NOWAIT); + if (bt == NULL) + panic("upa: couldn't alloc bus tag"); + + bzero(bt, sizeof *bt); + bt->cookie = sc; + bt->parent = sc->sc_bt; + bt->type = sc->sc_bt->type; + bt->sparc_bus_map = __upa_bus_map; + /* XXX bt->sparc_bus_mmap = upa_bus_mmap; */ + /* XXX bt->sparc_intr_establish = upa_intr_establish; */ + return (bt); +} + +int +__upa_bus_map(t, btype, offset, size, flags, vaddr, hp) + bus_space_tag_t t; + bus_type_t btype; + bus_addr_t offset; + bus_size_t size; + int flags; + vaddr_t vaddr; + bus_space_handle_t *hp; +{ + struct upa_softc *sc = t->cookie; + int i; + + for (i = 0; i < sc->sc_nrange; i++) { + if (offset < sc->sc_range[i].ur_space) + continue; + if (offset >= (sc->sc_range[i].ur_space + + sc->sc_range[i].ur_space)) + continue; + break; + } + if (i == sc->sc_nrange) + return (EINVAL); + + offset -= sc->sc_range[i].ur_space; + offset += sc->sc_range[i].ur_addr; + + Debugger(); + return (bus_space_map2(sc->sc_bt, btype, offset, size, + flags, vaddr, hp)); +} |