prom_fio.c revision e7cbe64f7a72dae5cb44f100db60ca88f3313c65
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/promif.h>
#include <sys/promimpl.h>
int
prom_fopen(ihandle_t fsih, char *path)
{
cell_t ci[10];
size_t len;
#ifdef PROM_32BIT_ADDRS
char *opath = NULL;
if ((uintptr_t)path > (uint32_t)-1) {
opath = path;
len = prom_strlen(opath) + 1; /* include terminating NUL */
path = promplat_alloc(len);
if (path == NULL)
return (0);
(void) prom_strcpy(path, opath);
}
#endif
len = prom_strlen(path);
promif_preprom();
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)4; /* #argument cells */
ci[2] = (cell_t)3; /* #result cells */
ci[3] = p1275_ptr2cell("open-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_uint2cell(len); /* Arg3: Len */
ci[6] = p1275_ptr2cell(path); /* Arg4: Pathname */
(void) p1275_cif_handler(&ci);
promif_postprom();
#ifdef PROM_32BIT_ADDRS
if (opath != NULL)
promplat_free(path, len + 1);
#endif
if (ci[7] != 0) /* Catch result */
return (-1);
if (ci[8] == 0) /* Res1: failed */
return (-1);
return (p1275_cell2int(ci[9])); /* Res2: fd */
}
int
prom_volopen(ihandle_t fsih, char *path)
{
cell_t ci[10];
size_t len;
#ifdef PROM_32BIT_ADDRS
char *opath = NULL;
if ((uintptr_t)path > (uint32_t)-1) {
opath = path;
len = prom_strlen(opath) + 1; /* include terminating NUL */
path = promplat_alloc(len);
if (path == NULL)
return (0);
(void) prom_strcpy(path, opath);
}
#endif
len = prom_strlen(path);
promif_preprom();
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)4; /* #argument cells */
ci[2] = (cell_t)3; /* #result cells */
ci[3] = p1275_ptr2cell("open-volume"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_uint2cell(len); /* Arg3: Len */
ci[6] = p1275_ptr2cell(path); /* Arg4: Pathname */
(void) p1275_cif_handler(&ci);
promif_postprom();
#ifdef PROM_32BIT_ADDRS
if (opath != NULL)
promplat_free(path, len + 1);
#endif
if (ci[7] != 0) /* Catch result */
return (-1);
if (ci[8] == 0) /* Res1: failed */
return (-1);
return (p1275_cell2int(ci[9])); /* Res2: fd */
}
int
prom_fseek(ihandle_t fsih, int fd, unsigned long long offset)
{
cell_t ci[10];
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)4; /* #argument cells */
ci[2] = (cell_t)3; /* #result cells */
ci[3] = p1275_ptr2cell("seek-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_int2cell(fd); /* Arg3: file desc */
ci[6] = p1275_ull2cell_low(offset); /* Arg4: Offset */
promif_preprom();
(void) p1275_cif_handler(&ci);
promif_postprom();
if (ci[7] != 0) /* Catch result */
return (-1);
if (ci[8] == 0) /* Res1: failed */
return (-1);
return (p1275_cell2int(ci[9])); /* Res2: off */
}
int
prom_fread(ihandle_t fsih, int fd, caddr_t buf, size_t len)
{
cell_t ci[10];
#ifdef PROM_32BIT_ADDRS
caddr_t obuf = NULL;
if ((uintptr_t)buf > (uint32_t)-1) {
obuf = buf;
buf = promplat_alloc(len);
if (buf == NULL)
return (-1);
}
#endif
promif_preprom();
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)5; /* #argument cells */
ci[2] = (cell_t)2; /* #result cells */
ci[3] = p1275_ptr2cell("read-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_int2cell(fd); /* Arg3: file desc */
ci[6] = p1275_uint2cell(len); /* Arg4: buffer length */
ci[7] = p1275_ptr2cell(buf); /* Arg5: buffer address */
(void) p1275_cif_handler(&ci);
promif_postprom();
#ifdef PROM_32BIT_ADDRS
if (obuf != NULL) {
promplat_bcopy(buf, obuf, len);
promplat_free(buf, len);
}
#endif
if (ci[8] != 0) /* Catch result */
return (-1);
return (p1275_cell2int(ci[9])); /* Res2: actual length */
}
int
prom_fsize(ihandle_t fsih, int fd, size_t *size)
{
cell_t ci[8];
promif_preprom();
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)3; /* #argument cells */
ci[2] = (cell_t)2; /* #result cells */
ci[3] = p1275_ptr2cell("size-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_int2cell(fd); /* Arg3: file desc */
(void) p1275_cif_handler(&ci);
promif_postprom();
if (ci[6] != 0) /* Catch result */
return (-1);
*size = p1275_cell2uint(ci[7]); /* Res2: size */
return (0);
}
int
prom_compinfo(ihandle_t fsih, int fd, int *iscmp, size_t *fsize, size_t *bsize)
{
cell_t ci[10];
promif_preprom();
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)3; /* #argument cells */
ci[2] = (cell_t)4; /* #result cells */
ci[3] = p1275_ptr2cell("cinfo-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_int2cell(fd); /* Arg3: file desc */
(void) p1275_cif_handler(&ci);
promif_postprom();
if (ci[6] != 0) /* Catch result */
return (-1);
*iscmp = p1275_cell2int(ci[7]); /* Res2: iscmp */
*fsize = p1275_cell2uint(ci[8]); /* Res3: fsize */
*bsize = p1275_cell2uint(ci[9]); /* Res4: bsize */
return (0);
}
void
prom_fclose(ihandle_t fsih, int fd)
{
cell_t ci[7];
ci[0] = p1275_ptr2cell("call-method"); /* Service name */
ci[1] = (cell_t)3; /* #argument cells */
ci[2] = (cell_t)1; /* #result cells */
ci[3] = p1275_ptr2cell("close-file"); /* Arg1: Method name */
ci[4] = p1275_ihandle2cell(fsih); /* Arg2: fs ihandle */
ci[5] = p1275_int2cell(fd); /* Arg3: file desc */
promif_preprom();
(void) p1275_cif_handler(&ci);
promif_postprom();
}