diff --git a/sys/dev/ofw/ofw_pci.h b/sys/dev/ofw/ofw_pci.h new file mode 100644 index 000000000000..f810be93e4aa --- /dev/null +++ b/sys/dev/ofw/ofw_pci.h @@ -0,0 +1,110 @@ +/*- + * Copyright (c) 1999 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * 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 the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``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 FOUNDATION OR CONTRIBUTORS + * 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. + * + * from: NetBSD: ofw_pci.h,v 1.3 2001/02/16 14:16:30 mrg Exp + * + * $FreeBSD$ + */ + +#ifndef _DEV_OFW_OFW_PCI_H_ +#define _DEV_OFW_OFW_PCI_H_ + +/* + * PCI Bus Binding to: + * + * IEEE Std 1275-1994 + * Standard for Boot (Initialization Configuration) Firmware + * + * Revision 2.1 + */ + +/* + * Section 2.2.1. Physical Address Formats + * + * A PCI physical address is represented by 3 address cells: + * + * phys.hi cell: npt000ss bbbbbbbb dddddfff rrrrrrrr + * phys.mid cell: hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh + * phys.lo cell: llllllll llllllll llllllll llllllll + * + * n nonrelocatable + * p prefectable + * t aliased below 1MB (memory) or 64k (i/o) + * ss space code + * b bus number + * d device number + * f function number + * r register number + * h high 32-bits of PCI address + * l low 32-bits of PCI address + */ + +#define OFW_PCI_PHYS_HI_NONRELOCATABLE 0x80000000 +#define OFW_PCI_PHYS_HI_PREFETCHABLE 0x40000000 +#define OFW_PCI_PHYS_HI_ALIASED 0x20000000 +#define OFW_PCI_PHYS_HI_SPACEMASK 0x03000000 +#define OFW_PCI_PHYS_HI_BUSMASK 0x00ff0000 +#define OFW_PCI_PHYS_HI_BUSSHIFT 16 +#define OFW_PCI_PHYS_HI_DEVICEMASK 0x0000f800 +#define OFW_PCI_PHYS_HI_DEVICESHIFT 11 +#define OFW_PCI_PHYS_HI_FUNCTIONMASK 0x00000700 +#define OFW_PCI_PHYS_HI_FUNCTIONSHIFT 8 +#define OFW_PCI_PHYS_HI_REGISTERMASK 0x000000ff + +#define OFW_PCI_PHYS_HI_SPACE_CONFIG 0x00000000 +#define OFW_PCI_PHYS_HI_SPACE_IO 0x01000000 +#define OFW_PCI_PHYS_HI_SPACE_MEM32 0x02000000 +#define OFW_PCI_PHYS_HI_SPACE_MEM64 0x03000000 + +#define OFW_PCI_PHYS_HI_BUS(hi) \ + (((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT) +#define OFW_PCI_PHYS_HI_DEVICE(hi) \ + (((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT) +#define OFW_PCI_PHYS_HI_FUNCTION(hi) \ + (((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT) + +/* + * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size. + */ +struct ofw_pci_register { + u_int32_t phys_hi; + u_int32_t phys_mid; + u_int32_t phys_lo; + u_int32_t size_hi; + u_int32_t size_lo; +}; + +#endif /* _DEV_OFW_OFW_PCI_H_ */ diff --git a/sys/dev/ofw/openfirm.c b/sys/dev/ofw/openfirm.c index 61b639119a87..7704109b44a3 100644 --- a/sys/dev/ofw/openfirm.c +++ b/sys/dev/ofw/openfirm.c @@ -58,12 +58,16 @@ */ #include +#include +#include #include #include #include +MALLOC_DEFINE(M_OFWPROP, "openfirm", "OpenFirmware properties"); + static ihandle_t stdin; static ihandle_t stdout; @@ -286,6 +290,30 @@ OF_getprop(phandle_t package, char *propname, void *buf, int buflen) return args.size; } +/* + * Store the value of a property of a package into newly allocated memory (using + * the M_OFWPROP malloc pool and M_WAITOK). elsz is the size of a single element, + * the number of elements is return in number. + */ +int +OF_getprop_alloc(phandle_t package, char *propname, int elsz, void **buf) +{ + int len; + + *buf = NULL; + if ((len = OF_getproplen(package, propname)) == -1 || + len % elsz != 0) + return (-1); + + *buf = malloc(len, M_OFWPROP, M_WAITOK); + if (OF_getprop(package, propname, *buf, len) == -1) { + free(*buf, M_OFWPROP); + *buf = NULL; + return (-1); + } + return (len / elsz); +} + /* Get the next property of a package. */ int OF_nextprop(phandle_t package, char *previous, char *buf) diff --git a/sys/dev/ofw/openfirm.h b/sys/dev/ofw/openfirm.h index d3760a97294b..f02a42c9982b 100644 --- a/sys/dev/ofw/openfirm.h +++ b/sys/dev/ofw/openfirm.h @@ -66,6 +66,9 @@ #include #include +#include + +MALLOC_DECLARE(M_OFWPROP); typedef unsigned long cell_t; @@ -96,6 +99,8 @@ phandle_t OF_parent(phandle_t); phandle_t OF_instance_to_package(ihandle_t); int OF_getproplen(phandle_t, char *); int OF_getprop(phandle_t, char *, void *, int); +int OF_getprop_alloc(phandle_t package, char *propname, int elsz, + void **buf); int OF_nextprop(phandle_t, char *, char *); int OF_setprop(phandle_t, char *, void *, int); int OF_canon(const char *, char *, int);