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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "devfsadm.h"
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#define DCAM_RE_STRING_LEN 64
#define DCAM_STR_LINK_RE "^dcam([0-9]+)$"
#define DCAM_CTL_LINK_RE "^dcamctl([0-9]+)$"
static int dcam1394_process(di_minor_t minor, di_node_t node);
static devfsadm_create_t dcam1394_cbt[] = {
{
"firewire",
NULL,
"dcam",
DRV_RE,
ILEVEL_0,
dcam1394_process
}
};
static char *debug_mid = "dcam1394_mid";
DEVFSADM_CREATE_INIT_V0(dcam1394_cbt);
static devfsadm_remove_t dcam1394_remove_cbt[] = {
{
"firewire",
DCAM_STR_LINK_RE,
RM_PRE | RM_HOT | RM_ALWAYS,
ILEVEL_0,
devfsadm_rm_all
},
{
"firewire",
DCAM_CTL_LINK_RE,
RM_PRE | RM_HOT | RM_ALWAYS,
ILEVEL_0,
devfsadm_rm_all
}
};
DEVFSADM_REMOVE_INIT_V0(dcam1394_remove_cbt);
int
minor_init(void)
{
devfsadm_print(debug_mid, "dcam1394_link: minor_init\n");
return (DEVFSADM_SUCCESS);
}
int
minor_fini(void)
{
devfsadm_print(debug_mid, "dcam1394_link: minor_fini\n");
return (DEVFSADM_SUCCESS);
}
/*
* This function is called for every dcam1394 minor node.
* Calls enumerate to assign a logical dcam1394 id, and then
* devfsadm_mklink to make the link.
*/
static int
dcam1394_process(di_minor_t minor, di_node_t node)
{
char m_name[PATH_MAX], restring0[DCAM_RE_STRING_LEN];
char l_path[PATH_MAX], p_path[PATH_MAX], *buf, *devfspath;
devfsadm_enumerate_t re[1];
(void) strcpy(m_name, di_minor_name(minor));
if (strcmp(di_driver_name(node), "dcam1394") != 0) {
return (DEVFSADM_CONTINUE);
}
if (strncmp(m_name, "dcamctl", 7) == 0) {
(void) snprintf(restring0, DCAM_RE_STRING_LEN,
DCAM_CTL_LINK_RE);
} else if (strncmp(m_name, "dcam", 4) == 0) {
(void) snprintf(restring0, DCAM_RE_STRING_LEN,
DCAM_STR_LINK_RE);
} else {
return (DEVFSADM_CONTINUE);
}
re[0].re = restring0;
re[0].subexp = 1;
re[0].flags = MATCH_ALL;
devfsadm_print(debug_mid,
"dcam1394_process: path %s\n", di_devfs_path(node));
(void) strcpy(p_path, devfspath = di_devfs_path(node));
(void) strcat(p_path, ":");
(void) strcat(p_path, di_minor_name(minor));
di_devfs_path_free(devfspath);
/*
* Build the physical path from the components, omitting
* minor name field. Find the logical dcam1394 id, and
* stuff it in buf.
*/
if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
devfsadm_print(debug_mid,
"dcam1394_process: exit/continue\n");
return (DEVFSADM_CONTINUE);
}
devfsadm_print(debug_mid, "dcam1394_process: p_path=%s buf=%s\n",
p_path, buf);
if (strncmp(di_minor_name(minor), "dcamctl", 7) == 0)
(void) snprintf(l_path, PATH_MAX, "dcamctl%s", buf);
else
(void) snprintf(l_path, PATH_MAX, "dcam%s", buf);
(void) devfsadm_mklink(l_path, node, minor, 0);
free(buf);
return (DEVFSADM_CONTINUE);
}
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