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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright (c) 1999-2000 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #include <sys/mdb_modapi.h>
28 #include <sys/dditypes.h>
29 #include <sys/sysinfo.h>
30 #include <sys/1394/s1394.h>
31
32 static int print_node_info(s1394_hal_t *hal);
33
34 /*
35 * speedmap()
36 * is used to print node information (speed map, node number, GUID, etc.)
37 * about the 1394 devices currently attached to the 1394 bus.
38 */
39 static int
speedmap(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)40 speedmap(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
41 {
42 s1394_hal_t hal;
43 int ret;
44
45 if (flags & DCMD_ADDRSPEC) {
46 if (mdb_vread(&hal, sizeof (s1394_hal_t), addr) == -1) {
47 mdb_warn("failed to read the HAL structure");
48 return (DCMD_ERR);
49 }
50
51 ret = print_node_info(&hal);
52 if (ret == DCMD_ERR)
53 return (DCMD_ERR);
54 } else {
55 (void) mdb_walk_dcmd("speedmap", "speedmap", argc, argv);
56 }
57
58 return (DCMD_OK);
59 }
60
61 static int
speedmap_walk_init(mdb_walk_state_t * wsp)62 speedmap_walk_init(mdb_walk_state_t *wsp)
63 {
64 s1394_state_t *statep;
65 s1394_state_t state;
66
67 if (wsp->walk_addr == 0) {
68 if (mdb_readvar(&statep, "s1394_statep") == -1) {
69 mdb_warn("failed to find the s1394_statep pointer");
70 return (WALK_ERR);
71 }
72 if (mdb_vread(&state, sizeof (s1394_state_t),
73 (uintptr_t)statep) == -1) {
74 mdb_warn("failed to read the s1394_statep structure");
75 return (WALK_ERR);
76 }
77 wsp->walk_addr = (uintptr_t)state.hal_head;
78 }
79
80 return (WALK_NEXT);
81 }
82
83 static int
speedmap_walk_step(mdb_walk_state_t * wsp)84 speedmap_walk_step(mdb_walk_state_t *wsp)
85 {
86 s1394_hal_t hal;
87 uintptr_t addr = wsp->walk_addr;
88
89 if (addr == 0)
90 return (WALK_DONE);
91
92 if (mdb_vread(&hal, sizeof (s1394_hal_t), addr) == -1) {
93 mdb_warn("failed to read the HAL structure");
94 return (WALK_ERR);
95 }
96
97 wsp->walk_addr = (uintptr_t)hal.hal_next;
98 return (wsp->walk_callback(addr, &hal, wsp->walk_cbdata));
99 }
100
101 /*ARGSUSED*/
102 static void
speedmap_walk_fini(mdb_walk_state_t * wsp)103 speedmap_walk_fini(mdb_walk_state_t *wsp)
104 {
105 /* Nothing to do here */
106 }
107
108 static const mdb_dcmd_t dcmds[] = {
109 { "speedmap", NULL, "print 1394 bus information", speedmap },
110 { NULL }
111 };
112
113 static const mdb_walker_t walkers[] = {
114 { "speedmap", "iterate over HAL structures", speedmap_walk_init,
115 speedmap_walk_step, speedmap_walk_fini },
116 { NULL }
117 };
118
119 static const mdb_modinfo_t modinfo = {
120 MDB_API_VERSION, dcmds, walkers
121 };
122
123 const mdb_modinfo_t *
_mdb_init(void)124 _mdb_init(void)
125 {
126 return (&modinfo);
127 }
128
129 /*
130 * print_node_info()
131 * is used to do the actual printing, given a HAL pointer.
132 */
133 static int
print_node_info(s1394_hal_t * hal)134 print_node_info(s1394_hal_t *hal)
135 {
136 s1394_node_t node[IEEE1394_MAX_NODES];
137 uint32_t cfgrom[IEEE1394_CONFIG_ROM_QUAD_SZ];
138 char str[512], tmp[512];
139 uint_t hal_node_num, num_nodes;
140 int i, j;
141
142 num_nodes = hal->number_of_nodes;
143 if (mdb_vread(node, (num_nodes * sizeof (s1394_node_t)),
144 (uintptr_t)hal->topology_tree) == -1) {
145 mdb_warn("failed to read the node structures");
146 return (DCMD_ERR);
147 }
148
149 hal_node_num = IEEE1394_NODE_NUM(hal->node_id);
150
151 mdb_printf("Speed Map:\n");
152
153 (void) strcpy(str, " |");
154 for (i = 0; i < num_nodes; i++) {
155 (void) mdb_snprintf(tmp, sizeof (tmp), " %2d ", i);
156 (void) strcat(str, tmp);
157 }
158 (void) strcat(str, " | GUID\n");
159 mdb_printf("%s", str);
160
161 (void) strcpy(str, "----|");
162 for (i = 0; i < hal->number_of_nodes; i++) {
163 (void) mdb_snprintf(tmp, sizeof (tmp), "----");
164 (void) strcat(str, tmp);
165 }
166 (void) strcat(str, "--|------------------\n");
167 mdb_printf("%s", str);
168
169 for (i = 0; i < num_nodes; i++) {
170 if (node[i].cfgrom != NULL) {
171 if (mdb_vread(&cfgrom, IEEE1394_CONFIG_ROM_SZ,
172 (uintptr_t)node[i].cfgrom) == -1) {
173 mdb_warn("failed to read Config ROM");
174 return (DCMD_ERR);
175 }
176 }
177
178 (void) mdb_snprintf(str, sizeof (str), " %2d |", i);
179
180 for (j = 0; j < num_nodes; j++) {
181 (void) mdb_snprintf(tmp, sizeof (tmp), " %3d",
182 hal->speed_map[i][j]);
183 (void) strcat(str, tmp);
184 }
185
186 if (i == hal_node_num) {
187 (void) strcat(str, " | Local OHCI Card\n");
188
189 } else if (node[i].link_active == 0) {
190 (void) strcat(str, " | Link off\n");
191
192 } else if (CFGROM_BIB_READ(&node[i])) {
193 (void) mdb_snprintf(tmp, sizeof (tmp),
194 " | %08x%08x\n", cfgrom[3], cfgrom[4]);
195 (void) strcat(str, tmp);
196
197 } else {
198 (void) strcat(str, " | ????????????????\n");
199 }
200 mdb_printf("%s", str);
201 }
202 mdb_printf("\n");
203 return (DCMD_OK);
204 }
205