xref: /titanic_44/usr/src/cmd/devfsadm/sparc/misc_link_sparc.c (revision 3c112a2b34403220c06c3e2fcac403358cfba168)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <regex.h>
27 #include <devfsadm.h>
28 #include <stdio.h>
29 #include <strings.h>
30 #include <stdlib.h>
31 #include <limits.h>
32 #include <sys/mkdev.h>
33 #include <bsm/devalloc.h>
34 
35 extern int system_labeled;
36 
37 
38 static int ddi_other(di_minor_t minor, di_node_t node);
39 static int diskette(di_minor_t minor, di_node_t node);
40 static int ecpp_create(di_minor_t minor, di_node_t node);
41 static int mc_node(di_minor_t minor, di_node_t node);
42 static int starcat_sbbc_node(di_minor_t minor, di_node_t node);
43 static int lom(di_minor_t minor, di_node_t node);
44 static int ntwdt_create(di_minor_t minor, di_node_t node);
45 static int bmc(di_minor_t minor, di_node_t node);
46 
47 static devfsadm_create_t misc_cbt[] = {
48 	{ "other", "ddi_other", NULL,
49 	    TYPE_EXACT, ILEVEL_0, ddi_other
50 	},
51 	{ "memory-controller", "ddi_mem_ctrl", NULL,
52 	    TYPE_EXACT, ILEVEL_0, mc_node
53 	},
54 	{ "pseudo", "ddi_pseudo", "sbbc",
55 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, starcat_sbbc_node
56 	},
57 	{ "disk",  "ddi_block:diskette", NULL,
58 	    TYPE_EXACT, ILEVEL_1, diskette
59 	},
60 	{ "printer",  "ddi_printer", NULL,
61 	    TYPE_EXACT, ILEVEL_1, ecpp_create
62 	},
63 	{ "pseudo", "ddi_pseudo", "lw8",
64 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, lom
65 	},
66 	{ "pseudo", "ddi_pseudo", "ntwdt",
67 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, ntwdt_create
68 	},
69 	{ "pseudo", "ddi_pseudo", "bmc",
70 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, bmc
71 	}
72 };
73 
74 DEVFSADM_CREATE_INIT_V0(misc_cbt);
75 
76 
77 /*
78  * Handles minor node type "ddi_other"
79  * type=ddi_other;name=SUNW,pmc    pmc
80  * type=ddi_other;name=SUNW,mic    mic\M0
81  */
82 static int
83 ddi_other(di_minor_t minor, di_node_t node)
84 {
85 	char path[PATH_MAX + 1];
86 	char *nn = di_node_name(node);
87 	char *mn = di_minor_name(minor);
88 
89 	if (strcmp(nn, "SUNW,pmc") == 0) {
90 		(void) devfsadm_mklink("pcm", node, minor, 0);
91 	} else if (strcmp(nn, "SUNW,mic") == 0) {
92 		(void) strcpy(path, "mic");
93 		(void) strcat(path, mn);
94 		(void) devfsadm_mklink(path, node, minor, 0);
95 	}
96 
97 	return (DEVFSADM_CONTINUE);
98 }
99 
100 /*
101  * This function is called for diskette nodes
102  */
103 static int
104 diskette(di_minor_t minor, di_node_t node)
105 {
106 	int	flags = 0;
107 	char	*mn = di_minor_name(minor);
108 
109 	if (system_labeled)
110 		flags = DA_ADD|DA_FLOPPY;
111 
112 	if (strcmp(mn, "c") == 0) {
113 		(void) devfsadm_mklink("diskette", node, minor, flags);
114 		(void) devfsadm_mklink("diskette0", node, minor, flags);
115 
116 	} else if (strcmp(mn, "c,raw") == 0) {
117 		(void) devfsadm_mklink("rdiskette", node, minor, flags);
118 		(void) devfsadm_mklink("rdiskette0", node, minor, flags);
119 
120 	}
121 	return (DEVFSADM_CONTINUE);
122 }
123 
124 /*
125  * Handles links of the form:
126  * type=ddi_printer;name=ecpp  ecpp\N0
127  */
128 static int
129 ecpp_create(di_minor_t minor, di_node_t node)
130 {
131 	char *buf;
132 	char path[PATH_MAX + 1];
133 	devfsadm_enumerate_t rules[1] = {"^ecpp([0-9]+)$", 1, MATCH_ALL};
134 
135 	if (strcmp(di_driver_name(node), "ecpp") != 0) {
136 		return (DEVFSADM_CONTINUE);
137 	}
138 
139 	if ((buf = di_devfs_path(node)) == NULL) {
140 		return (DEVFSADM_CONTINUE);
141 	}
142 
143 	(void) snprintf(path, sizeof (path), "%s:%s",
144 	    buf, di_minor_name(minor));
145 
146 	di_devfs_path_free(buf);
147 
148 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
149 		return (DEVFSADM_CONTINUE);
150 	}
151 
152 	(void) snprintf(path, sizeof (path), "ecpp%s", buf);
153 	free(buf);
154 
155 	(void) devfsadm_mklink(path, node, minor, 0);
156 	return (DEVFSADM_CONTINUE);
157 }
158 
159 /* Rules for memory controller */
160 static devfsadm_enumerate_t mc_rules[1] =
161 	{"^mc$/^mc([0-9]+)$", 1, MATCH_ALL};
162 
163 
164 static int
165 mc_node(di_minor_t minor, di_node_t node)
166 {
167 	char path[PATH_MAX], l_path[PATH_MAX], *buf, *devfspath;
168 	char *minor_nm;
169 
170 	minor_nm = di_minor_name(minor);
171 
172 	if (minor_nm == NULL) {
173 		return (DEVFSADM_CONTINUE);
174 	}
175 
176 	devfspath = di_devfs_path(node);
177 
178 	(void) strcpy(path, devfspath);
179 	(void) strcat(path, ":");
180 	(void) strcat(path, minor_nm);
181 	di_devfs_path_free(devfspath);
182 
183 	/* build the physical path from the components */
184 	if (devfsadm_enumerate_int(path, 0, &buf, mc_rules, 1)) {
185 		return (DEVFSADM_CONTINUE);
186 	}
187 
188 	(void) strcpy(l_path, "mc/mc");
189 	(void) strcat(l_path, buf);
190 
191 	free(buf);
192 
193 	(void) devfsadm_mklink(l_path, node, minor, 0);
194 	return (DEVFSADM_CONTINUE);
195 }
196 
197 
198 /*
199  * Starcat sbbc node.  We only really care about generating a /dev
200  * link for the lone sbbc on the SC (as opposed to the potentially
201  * numerous sbbcs on the domain), so only operate on instance 0.
202  */
203 static int
204 starcat_sbbc_node(di_minor_t minor, di_node_t node)
205 {
206 	char *mn;
207 
208 	if (di_instance(node) == 0) {
209 		mn = di_minor_name(minor);
210 		(void) devfsadm_mklink(mn, node, minor, 0);
211 	}
212 	return (DEVFSADM_CONTINUE);
213 
214 }
215 
216 /*
217  * Creates /dev/lom nodes for Platform Specific lom driver
218  */
219 static int
220 lom(di_minor_t minor, di_node_t node)
221 {
222 	(void) devfsadm_mklink("lom", node, minor, 0);
223 	return (DEVFSADM_CONTINUE);
224 }
225 
226 /*
227  * Creates /dev/ntwdt nodes for Platform Specific ntwdt driver
228  */
229 static int
230 ntwdt_create(di_minor_t minor, di_node_t node)
231 {
232 	(void) devfsadm_mklink("ntwdt", node, minor, 0);
233 	return (DEVFSADM_CONTINUE);
234 }
235 
236 /*
237  * Creates /dev/bmc node.
238  */
239 static int
240 bmc(di_minor_t minor, di_node_t node)
241 {
242 	(void) devfsadm_mklink("bmc", node, minor, 0);
243 	return (DEVFSADM_CONTINUE);
244 }
245