diff options
| author | Jordan Hargrave <jordan@cvs.openbsd.org> | 2007-02-23 00:04:41 +0000 |
|---|---|---|
| committer | Jordan Hargrave <jordan@cvs.openbsd.org> | 2007-02-23 00:04:41 +0000 |
| commit | 586b3ab31e79a1839b5860ce0cd676d818af61c5 (patch) | |
| tree | 7b8fd8671cd4870b8c1ffafd952ff7426cc0c246 /sys | |
| parent | 99bd56c9952c8411740748da44739c8674fcd504 (diff) | |
Added support for getting host-bridge _BBN from _CRS resources
suggestions by kettenis
ok marco@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/acpi/acpiprt.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/sys/dev/acpi/acpiprt.c b/sys/dev/acpi/acpiprt.c index 2000be74fab..882a0812fae 100644 --- a/sys/dev/acpi/acpiprt.c +++ b/sys/dev/acpi/acpiprt.c @@ -1,4 +1,4 @@ -/* $OpenBSD: acpiprt.c,v 1.15 2007/02/21 19:17:23 kettenis Exp $ */ +/* $OpenBSD: acpiprt.c,v 1.16 2007/02/23 00:04:40 jordan Exp $ */ /* * Copyright (c) 2006 Mark Kettenis <kettenis@openbsd.org> * @@ -43,6 +43,8 @@ int acpiprt_match(struct device *, void *, void *); void acpiprt_attach(struct device *, struct device *, void *); int acpiprt_getirq(union acpi_resource *crs, void *arg); +int acpiprt_getminbus(union acpi_resource *, void *); + struct acpiprt_softc { struct device sc_dev; @@ -258,6 +260,18 @@ acpiprt_prt_add(struct acpiprt_softc *sc, struct aml_value *v) } int +acpiprt_getminbus(union acpi_resource *crs, void *arg) +{ + int *bbn = arg; + int typ = AML_CRSTYPE(crs); + + /* Check for embedded bus number */ + if (typ == LR_WORD && crs->lr_word.type == 2) + *bbn = crs->lr_word._min; + return 0; +} + +int acpiprt_getpcibus(struct acpiprt_softc *sc, struct aml_node *node) { struct aml_node *parent = node->parent; @@ -292,6 +306,15 @@ acpiprt_getpcibus(struct acpiprt_softc *sc, struct aml_node *node) } } + if (aml_evalname(sc->sc_acpi, parent, "_CRS", 0, NULL, &res) == 0) { + rv = -1; + if (res.type == AML_OBJTYPE_BUFFER) + aml_parse_resource(res.length, res.v_buffer, + acpiprt_getminbus, &rv); + aml_freevalue(&res); + if (rv != -1) + return rv; + } if (aml_evalname(sc->sc_acpi, parent, "_BBN", 0, NULL, &res) == 0) { rv = aml_val2int(&res); aml_freevalue(&res); |