vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity
grub/kern/ieee1275/ieee1275.c
hollisb e2b8278c9e 2006-10-27 Hollis Blanchard <hollis@penguinppc.org> 
* disk/ieee1275/ofdisk.c (grub_ofdisk_read): Return error if `status'
	is negative.
	* kern/ieee1275/ieee1275.c (IEEE1275_IHANDLE_INVALID): Change to 0.
2006-10-27 17:57:05 +00:00

588 lines
13 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* of.c - Access the Open Firmware client interface. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <grub/ieee1275/ieee1275.h>
#define IEEE1275_PHANDLE_INVALID ((grub_ieee1275_phandle_t) -1)
#define IEEE1275_IHANDLE_INVALID ((grub_ieee1275_ihandle_t) 0)
#define IEEE1275_CELL_INVALID ((grub_ieee1275_cell_t) -1)
/* FIXME is this function needed? */
grub_uint32_t
grub_ieee1275_decode_int_4 (unsigned char *p)
{
grub_uint32_t val = (*p++ << 8);
val = (val + *p++) << 8;
val = (val + *p++) << 8;
return (val + *p);
}
int
grub_ieee1275_finddevice (char *name, grub_ieee1275_phandle_t *phandlep)
{
struct find_device_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t device;
grub_ieee1275_phandle_t phandle;
}
args;
INIT_IEEE1275_COMMON (&args.common, "finddevice", 1, 1);
args.device = (grub_ieee1275_cell_t) name;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*phandlep = args.phandle;
if (args.phandle == IEEE1275_PHANDLE_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_get_property (grub_ieee1275_phandle_t phandle,
const char *property, void *buf,
grub_size_t size, grub_ssize_t *actual)
{
struct get_property_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t phandle;
grub_ieee1275_cell_t prop;
grub_ieee1275_cell_t buf;
grub_ieee1275_cell_t buflen;
grub_ieee1275_cell_t size;
}
args;
INIT_IEEE1275_COMMON (&args.common, "getprop", 4, 1);
args.phandle = phandle;
args.prop = (grub_ieee1275_cell_t) property;
args.buf = (grub_ieee1275_cell_t) buf;
args.buflen = (grub_ieee1275_cell_t) size;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (actual)
*actual = (grub_ssize_t) args.size;
if (args.size == IEEE1275_CELL_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_next_property (grub_ieee1275_phandle_t phandle, char *prev_prop,
char *prop)
{
struct get_property_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t phandle;
grub_ieee1275_cell_t prev_prop;
grub_ieee1275_cell_t next_prop;
grub_ieee1275_cell_t flags;
}
args;
INIT_IEEE1275_COMMON (&args.common, "nextprop", 3, 1);
args.phandle = phandle;
args.prev_prop = (grub_ieee1275_cell_t) prev_prop;
args.next_prop = (grub_ieee1275_cell_t) prop;
args.flags = (grub_ieee1275_cell_t) -1;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return (int) args.flags;
}
int
grub_ieee1275_get_property_length (grub_ieee1275_phandle_t phandle,
const char *prop, grub_ssize_t *length)
{
struct get_property_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t phandle;
grub_ieee1275_cell_t prop;
grub_ieee1275_cell_t length;
}
args;
INIT_IEEE1275_COMMON (&args.common, "getproplen", 2, 1);
args.phandle = phandle;
args.prop = (grub_ieee1275_cell_t) prop;
args.length = (grub_ieee1275_cell_t) -1;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*length = args.length;
if (args.length == IEEE1275_CELL_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_instance_to_package (grub_ieee1275_ihandle_t ihandle,
grub_ieee1275_phandle_t *phandlep)
{
struct instance_to_package_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
grub_ieee1275_phandle_t phandle;
}
args;
INIT_IEEE1275_COMMON (&args.common, "instance-to-package", 1, 1);
args.ihandle = ihandle;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*phandlep = args.phandle;
if (args.phandle == IEEE1275_PHANDLE_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_package_to_path (grub_ieee1275_phandle_t phandle,
char *path, grub_size_t len,
grub_ssize_t *actual)
{
struct instance_to_package_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t phandle;
grub_ieee1275_cell_t buf;
grub_ieee1275_cell_t buflen;
grub_ieee1275_cell_t actual;
}
args;
INIT_IEEE1275_COMMON (&args.common, "package-to-path", 3, 1);
args.phandle = phandle;
args.buf = (grub_ieee1275_cell_t) path;
args.buflen = (grub_ieee1275_cell_t) len;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (actual)
*actual = args.actual;
if (args.actual == IEEE1275_CELL_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_instance_to_path (grub_ieee1275_ihandle_t ihandle,
char *path, grub_size_t len,
grub_ssize_t *actual)
{
struct instance_to_path_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
grub_ieee1275_cell_t buf;
grub_ieee1275_cell_t buflen;
grub_ieee1275_cell_t actual;
}
args;
INIT_IEEE1275_COMMON (&args.common, "instance-to-path", 3, 1);
args.ihandle = ihandle;
args.buf = (grub_ieee1275_cell_t) path;
args.buflen = (grub_ieee1275_cell_t) len;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (actual)
*actual = args.actual;
if (args.actual == IEEE1275_CELL_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_write (grub_ieee1275_ihandle_t ihandle, void *buffer,
grub_size_t len, grub_ssize_t *actualp)
{
struct write_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
grub_ieee1275_cell_t buf;
grub_ieee1275_cell_t len;
grub_ieee1275_cell_t actual;
}
args;
INIT_IEEE1275_COMMON (&args.common, "write", 3, 1);
args.ihandle = ihandle;
args.buf = (grub_ieee1275_cell_t) buffer;
args.len = (grub_ieee1275_cell_t) len;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (actualp)
*actualp = args.actual;
return 0;
}
int
grub_ieee1275_read (grub_ieee1275_ihandle_t ihandle, void *buffer,
grub_size_t len, grub_ssize_t *actualp)
{
struct write_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
grub_ieee1275_cell_t buf;
grub_ieee1275_cell_t len;
grub_ieee1275_cell_t actual;
}
args;
INIT_IEEE1275_COMMON (&args.common, "read", 3, 1);
args.ihandle = ihandle;
args.buf = (grub_ieee1275_cell_t) buffer;
args.len = (grub_ieee1275_cell_t) len;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (actualp)
*actualp = args.actual;
return 0;
}
int
grub_ieee1275_seek (grub_ieee1275_ihandle_t ihandle, int pos_hi,
int pos_lo, grub_ssize_t *result)
{
struct write_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
grub_ieee1275_cell_t pos_hi;
grub_ieee1275_cell_t pos_lo;
grub_ieee1275_cell_t result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "seek", 3, 1);
args.ihandle = ihandle;
args.pos_hi = (grub_ieee1275_cell_t) pos_hi;
args.pos_lo = (grub_ieee1275_cell_t) pos_lo;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (result)
*result = args.result;
return 0;
}
int
grub_ieee1275_peer (grub_ieee1275_phandle_t node,
grub_ieee1275_phandle_t *result)
{
struct peer_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t node;
grub_ieee1275_phandle_t result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "peer", 1, 1);
args.node = node;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*result = args.result;
if (args.result == 0)
return -1;
return 0;
}
int
grub_ieee1275_child (grub_ieee1275_phandle_t node,
grub_ieee1275_phandle_t *result)
{
struct child_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t node;
grub_ieee1275_phandle_t result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "child", 1, 1);
args.node = node;
args.result = IEEE1275_PHANDLE_INVALID;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*result = args.result;
if (args.result == 0)
return -1;
return 0;
}
int
grub_ieee1275_parent (grub_ieee1275_phandle_t node,
grub_ieee1275_phandle_t *result)
{
struct parent_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t node;
grub_ieee1275_phandle_t result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "parent", 1, 1);
args.node = node;
args.result = IEEE1275_PHANDLE_INVALID;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*result = args.result;
return 0;
}
int
grub_ieee1275_interpret (const char *command, grub_ieee1275_cell_t *catch)
{
struct enter_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t command;
grub_ieee1275_cell_t catch;
}
args;
INIT_IEEE1275_COMMON (&args.common, "interpret", 1, 1);
args.command = (grub_ieee1275_cell_t) command;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (catch)
*catch = args.catch;
return 0;
}
int
grub_ieee1275_enter (void)
{
struct enter_args
{
struct grub_ieee1275_common_hdr common;
}
args;
INIT_IEEE1275_COMMON (&args.common, "enter", 0, 0);
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return 0;
}
void
grub_ieee1275_exit (void)
{
struct exit_args
{
struct grub_ieee1275_common_hdr common;
}
args;
INIT_IEEE1275_COMMON (&args.common, "exit", 0, 0);
IEEE1275_CALL_ENTRY_FN (&args);
for (;;) ;
}
int
grub_ieee1275_open (const char *path, grub_ieee1275_ihandle_t *result)
{
struct open_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t path;
grub_ieee1275_ihandle_t result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "open", 1, 1);
args.path = (grub_ieee1275_cell_t) path;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*result = args.result;
if (args.result == IEEE1275_IHANDLE_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_close (grub_ieee1275_ihandle_t ihandle)
{
struct close_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_ihandle_t ihandle;
}
args;
INIT_IEEE1275_COMMON (&args.common, "close", 1, 0);
args.ihandle = ihandle;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return 0;
}
int
grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
grub_addr_t *result)
{
struct claim_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t addr;
grub_ieee1275_cell_t size;
grub_ieee1275_cell_t align;
grub_ieee1275_cell_t base;
}
args;
INIT_IEEE1275_COMMON (&args.common, "claim", 3, 1);
args.addr = (grub_ieee1275_cell_t) addr;
args.size = (grub_ieee1275_cell_t) size;
args.align = (grub_ieee1275_cell_t) align;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
if (result)
*result = args.base;
if (args.base == IEEE1275_CELL_INVALID)
return -1;
return 0;
}
int
grub_ieee1275_release (grub_addr_t addr, grub_size_t size)
{
struct release_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t addr;
grub_ieee1275_cell_t size;
}
args;
INIT_IEEE1275_COMMON (&args.common, "release", 2, 0);
args.addr = addr;
args.size = size;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return 0;
}
int
grub_ieee1275_set_property (grub_ieee1275_phandle_t phandle,
const char *propname, void *buf,
grub_size_t size, grub_ssize_t *actual)
{
struct set_property_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_phandle_t phandle;
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;
if ((args.actual == IEEE1275_CELL_INVALID) || (args.actual != args.size))
return -1;
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;
}
Reference in a new issue View git blame Copy permalink