577 lines
13 KiB
C
577 lines
13 KiB
C
/* of.c - Access the Open Firmware client interface. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/ieee1275/ieee1275.h>
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#define IEEE1275_PHANDLE_ROOT ((grub_ieee1275_phandle_t) 0)
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#define IEEE1275_PHANDLE_INVALID ((grub_ieee1275_phandle_t) -1)
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/* FIXME is this function needed? */
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grub_uint32_t
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grub_ieee1275_decode_int_4 (unsigned char *p)
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{
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grub_uint32_t val = (*p++ << 8);
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val = (val + *p++) << 8;
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val = (val + *p++) << 8;
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return (val + *p);
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}
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int
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grub_ieee1275_finddevice (char *name, grub_ieee1275_phandle_t *phandlep)
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{
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struct find_device_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_cell_t device;
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grub_ieee1275_phandle_t phandle;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "finddevice", 1, 1);
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args.device = (grub_ieee1275_cell_t) name;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*phandlep = args.phandle;
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return 0;
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}
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int
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grub_ieee1275_get_property (grub_ieee1275_phandle_t phandle,
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const char *property, void *buf,
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grub_size_t size, grub_ssize_t *actual)
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{
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struct get_property_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t phandle;
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grub_ieee1275_cell_t prop;
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grub_ieee1275_cell_t buf;
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grub_ieee1275_cell_t buflen;
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grub_ieee1275_cell_t size;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "getprop", 4, 1);
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args.phandle = phandle;
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args.prop = (grub_ieee1275_cell_t) property;
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args.buf = (grub_ieee1275_cell_t) buf;
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args.buflen = (grub_ieee1275_cell_t) size;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (actual)
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*actual = (grub_ssize_t) args.size;
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if (args.size == (grub_ieee1275_cell_t) -1)
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return -1;
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return 0;
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}
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int
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grub_ieee1275_next_property (grub_ieee1275_phandle_t phandle, char *prev_prop,
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char *prop, grub_ieee1275_cell_t *flags)
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{
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struct get_property_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t phandle;
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grub_ieee1275_cell_t prev_prop;
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grub_ieee1275_cell_t next_prop;
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grub_ieee1275_cell_t flags;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "nextprop", 3, 1);
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args.phandle = phandle;
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args.prev_prop = (grub_ieee1275_cell_t) prev_prop;
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args.next_prop = (grub_ieee1275_cell_t) prop;
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args.flags = (grub_ieee1275_cell_t) -1;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (flags)
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*flags = args.flags;
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return 0;
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}
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int
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grub_ieee1275_get_property_length (grub_ieee1275_phandle_t phandle,
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const char *prop, grub_ssize_t *length)
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{
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struct get_property_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t phandle;
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grub_ieee1275_cell_t prop;
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grub_ieee1275_cell_t length;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "getproplen", 2, 1);
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args.phandle = phandle;
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args.prop = (grub_ieee1275_cell_t) prop;
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args.length = (grub_ieee1275_cell_t) -1;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*length = args.length;
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return 0;
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}
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int
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grub_ieee1275_instance_to_package (grub_ieee1275_ihandle_t ihandle,
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grub_ieee1275_phandle_t *phandlep)
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{
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struct instance_to_package_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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grub_ieee1275_phandle_t phandle;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "instance-to-package", 1, 1);
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args.ihandle = ihandle;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*phandlep = args.phandle;
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return 0;
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}
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int
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grub_ieee1275_package_to_path (grub_ieee1275_phandle_t phandle,
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char *path, grub_size_t len,
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grub_ssize_t *actual)
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{
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struct instance_to_package_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t phandle;
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grub_ieee1275_cell_t buf;
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grub_ieee1275_cell_t buflen;
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grub_ieee1275_cell_t actual;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "package-to-path", 3, 1);
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args.phandle = phandle;
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args.buf = (grub_ieee1275_cell_t) path;
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args.buflen = (grub_ieee1275_cell_t) len;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (actual)
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*actual = args.actual;
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return 0;
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}
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int
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grub_ieee1275_instance_to_path (grub_ieee1275_ihandle_t ihandle,
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char *path, grub_size_t len,
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grub_ssize_t *actual)
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{
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struct instance_to_package_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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grub_ieee1275_cell_t buf;
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grub_ieee1275_cell_t buflen;
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grub_ieee1275_cell_t actual;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "instance-to-path", 3, 1);
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args.ihandle = ihandle;
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args.buf = (grub_ieee1275_cell_t) path;
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args.buflen = (grub_ieee1275_cell_t) len;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (actual)
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*actual = args.actual;
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return 0;
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}
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int
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grub_ieee1275_write (grub_ieee1275_ihandle_t ihandle, void *buffer,
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grub_size_t len, grub_ssize_t *actualp)
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{
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struct write_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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grub_ieee1275_cell_t buf;
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grub_ieee1275_cell_t len;
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grub_ieee1275_cell_t actual;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "write", 3, 1);
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args.ihandle = ihandle;
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args.buf = (grub_ieee1275_cell_t) buffer;
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args.len = (grub_ieee1275_cell_t) len;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (actualp)
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*actualp = args.actual;
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return 0;
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}
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int
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grub_ieee1275_read (grub_ieee1275_ihandle_t ihandle, void *buffer,
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grub_size_t len, grub_ssize_t *actualp)
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{
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struct write_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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grub_ieee1275_cell_t buf;
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grub_ieee1275_cell_t len;
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grub_ieee1275_cell_t actual;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "read", 3, 1);
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args.ihandle = ihandle;
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args.buf = (grub_ieee1275_cell_t) buffer;
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args.len = (grub_ieee1275_cell_t) len;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (actualp)
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*actualp = args.actual;
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return 0;
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}
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int
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grub_ieee1275_seek (grub_ieee1275_ihandle_t ihandle, int pos_hi,
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int pos_lo, grub_ssize_t *result)
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{
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struct write_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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grub_ieee1275_cell_t pos_hi;
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grub_ieee1275_cell_t pos_lo;
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grub_ieee1275_cell_t result;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "seek", 3, 1);
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args.ihandle = ihandle;
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args.pos_hi = (grub_ieee1275_cell_t) pos_hi;
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args.pos_lo = (grub_ieee1275_cell_t) pos_lo;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (result)
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*result = args.result;
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return 0;
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}
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int
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grub_ieee1275_peer (grub_ieee1275_phandle_t node,
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grub_ieee1275_phandle_t *result)
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{
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struct peer_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t node;
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grub_ieee1275_phandle_t result;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "peer", 1, 1);
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args.node = node;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*result = args.result;
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return 0;
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}
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int
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grub_ieee1275_child (grub_ieee1275_phandle_t node,
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grub_ieee1275_phandle_t *result)
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{
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struct child_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t node;
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grub_ieee1275_phandle_t result;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "child", 1, 1);
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args.node = node;
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args.result = IEEE1275_PHANDLE_INVALID;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*result = args.result;
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return 0;
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}
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int
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grub_ieee1275_parent (grub_ieee1275_phandle_t node,
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grub_ieee1275_phandle_t *result)
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{
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struct parent_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t node;
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grub_ieee1275_phandle_t result;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "parent", 1, 1);
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args.node = node;
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args.result = IEEE1275_PHANDLE_INVALID;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*result = args.result;
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return 0;
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}
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int
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grub_ieee1275_interpret (const char *command, grub_ieee1275_cell_t *catch)
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{
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struct enter_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_cell_t command;
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grub_ieee1275_cell_t catch;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "interpret", 1, 1);
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args.command = (grub_ieee1275_cell_t) command;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (catch)
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*catch = args.catch;
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return 0;
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}
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int
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grub_ieee1275_enter (void)
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{
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struct enter_args
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{
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struct grub_ieee1275_common_hdr common;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "enter", 0, 0);
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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return 0;
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}
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void
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grub_ieee1275_exit (void)
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{
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struct exit_args
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{
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struct grub_ieee1275_common_hdr common;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "exit", 0, 0);
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IEEE1275_CALL_ENTRY_FN (&args);
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for (;;) ;
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}
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int
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grub_ieee1275_open (const char *path, grub_ieee1275_ihandle_t *result)
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{
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struct open_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_cell_t path;
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grub_ieee1275_ihandle_t result;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "open", 1, 1);
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args.path = (grub_ieee1275_cell_t) path;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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*result = args.result;
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return 0;
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}
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int
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grub_ieee1275_close (grub_ieee1275_ihandle_t ihandle)
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{
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struct close_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_ihandle_t ihandle;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "close", 1, 0);
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args.ihandle = ihandle;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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return 0;
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}
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int
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grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
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grub_addr_t *result)
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{
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struct claim_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_cell_t addr;
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grub_ieee1275_cell_t size;
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grub_ieee1275_cell_t align;
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grub_ieee1275_cell_t base;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "claim", 3, 1);
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args.addr = (grub_ieee1275_cell_t) addr;
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args.size = (grub_ieee1275_cell_t) size;
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args.align = (grub_ieee1275_cell_t) align;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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if (result)
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*result = args.base;
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if (args.base == (grub_ieee1275_cell_t)-1)
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return -1;
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return 0;
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}
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int
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grub_ieee1275_release (grub_addr_t addr, grub_size_t size)
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{
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struct release_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_cell_t addr;
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grub_ieee1275_cell_t size;
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}
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args;
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INIT_IEEE1275_COMMON (&args.common, "release", 2, 0);
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args.addr = addr;
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args.size = size;
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if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
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return -1;
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return 0;
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}
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int
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grub_ieee1275_set_property (grub_ieee1275_phandle_t phandle,
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const char *propname, void *buf,
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grub_size_t size, grub_ssize_t *actual)
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{
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struct set_property_args
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{
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struct grub_ieee1275_common_hdr common;
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grub_ieee1275_phandle_t phandle;
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grub_ieee1275_cell_t propname;
|
||
grub_ieee1275_cell_t buf;
|
||
grub_ieee1275_cell_t size;
|
||
grub_ieee1275_cell_t actual;
|
||
}
|
||
args;
|
||
|
||
INIT_IEEE1275_COMMON (&args.common, "setprop", 4, 1);
|
||
args.size = (grub_ieee1275_cell_t) size;
|
||
args.buf = (grub_ieee1275_cell_t) buf;
|
||
args.propname = (grub_ieee1275_cell_t) propname;
|
||
args.phandle = (grub_ieee1275_cell_t) phandle;
|
||
|
||
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
|
||
return -1;
|
||
*actual = args.actual;
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
grub_ieee1275_set_color (grub_ieee1275_ihandle_t ihandle,
|
||
int index, int r, int g, int b)
|
||
{
|
||
struct set_color_args
|
||
{
|
||
struct grub_ieee1275_common_hdr common;
|
||
char *method;
|
||
grub_ieee1275_ihandle_t ihandle;
|
||
grub_ieee1275_cell_t index;
|
||
grub_ieee1275_cell_t b;
|
||
grub_ieee1275_cell_t g;
|
||
grub_ieee1275_cell_t r;
|
||
}
|
||
args;
|
||
|
||
INIT_IEEE1275_COMMON (&args.common, "call-method", 6, 0);
|
||
args.method = "color!";
|
||
args.ihandle = ihandle;
|
||
args.index = index;
|
||
args.r = r;
|
||
args.g = g;
|
||
args.b = b;
|
||
|
||
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
|
||
return -1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
grub_ieee1275_milliseconds (grub_uint32_t *msecs)
|
||
{
|
||
struct milliseconds_args
|
||
{
|
||
struct grub_ieee1275_common_hdr common;
|
||
grub_ieee1275_cell_t msecs;
|
||
}
|
||
args;
|
||
|
||
INIT_IEEE1275_COMMON (&args.common, "milliseconds", 0, 1);
|
||
|
||
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
|
||
return -1;
|
||
*msecs = args.msecs;
|
||
return 0;
|
||
}
|