1 /*
2 * Copyright (c) International Business Machines Corp., 2006
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
12 * the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * Author: Artem Bityutskiy (Битюцкий Артём)
19 */
20
21 /*
22 * Here we keep all the UBI debugging stuff which should normally be disabled
23 * and compiled-out, but it is extremely helpful when hunting bugs or doing big
24 * changes.
25 */
26
27 #ifdef CONFIG_MTD_UBI_DEBUG
28
29 #include "ubi.h"
30
31 /**
32 * ubi_dbg_dump_ec_hdr - dump an erase counter header.
33 * @ec_hdr: the erase counter header to dump
34 */
35 void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
36 {
37 printk(KERN_DEBUG "Erase counter header dump:\n");
38 printk(KERN_DEBUG "\tmagic %#08x\n",
39 be32_to_cpu(ec_hdr->magic));
40 printk(KERN_DEBUG "\tversion %d\n", (int)ec_hdr->version);
41 printk(KERN_DEBUG "\tec %llu\n",
42 (long long)be64_to_cpu(ec_hdr->ec));
43 printk(KERN_DEBUG "\tvid_hdr_offset %d\n",
44 be32_to_cpu(ec_hdr->vid_hdr_offset));
45 printk(KERN_DEBUG "\tdata_offset %d\n",
46 be32_to_cpu(ec_hdr->data_offset));
47 printk(KERN_DEBUG "\timage_seq %d\n",
48 be32_to_cpu(ec_hdr->image_seq));
49 printk(KERN_DEBUG "\thdr_crc %#08x\n",
50 be32_to_cpu(ec_hdr->hdr_crc));
51 printk(KERN_DEBUG "erase counter header hexdump:\n");
52 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
53 ec_hdr, UBI_EC_HDR_SIZE, 1);
54 }
55
56 /**
57 * ubi_dbg_dump_vid_hdr - dump a volume identifier header.
58 * @vid_hdr: the volume identifier header to dump
59 */
60 void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
61 {
62 printk(KERN_DEBUG "Volume identifier header dump:\n");
63 printk(KERN_DEBUG "\tmagic %08x\n", be32_to_cpu(vid_hdr->magic));
64 printk(KERN_DEBUG "\tversion %d\n", (int)vid_hdr->version);
65 printk(KERN_DEBUG "\tvol_type %d\n", (int)vid_hdr->vol_type);
66 printk(KERN_DEBUG "\tcopy_flag %d\n", (int)vid_hdr->copy_flag);
67 printk(KERN_DEBUG "\tcompat %d\n", (int)vid_hdr->compat);
68 printk(KERN_DEBUG "\tvol_id %d\n", be32_to_cpu(vid_hdr->vol_id));
69 printk(KERN_DEBUG "\tlnum %d\n", be32_to_cpu(vid_hdr->lnum));
70 printk(KERN_DEBUG "\tdata_size %d\n", be32_to_cpu(vid_hdr->data_size));
71 printk(KERN_DEBUG "\tused_ebs %d\n", be32_to_cpu(vid_hdr->used_ebs));
72 printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(vid_hdr->data_pad));
73 printk(KERN_DEBUG "\tsqnum %llu\n",
74 (unsigned long long)be64_to_cpu(vid_hdr->sqnum));
75 printk(KERN_DEBUG "\thdr_crc %08x\n", be32_to_cpu(vid_hdr->hdr_crc));
76 printk(KERN_DEBUG "Volume identifier header hexdump:\n");
77 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
78 vid_hdr, UBI_VID_HDR_SIZE, 1);
79 }
80
81 /**
82 * ubi_dbg_dump_vol_info- dump volume information.
83 * @vol: UBI volume description object
84 */
85 void ubi_dbg_dump_vol_info(const struct ubi_volume *vol)
86 {
87 printk(KERN_DEBUG "Volume information dump:\n");
88 printk(KERN_DEBUG "\tvol_id %d\n", vol->vol_id);
89 printk(KERN_DEBUG "\treserved_pebs %d\n", vol->reserved_pebs);
90 printk(KERN_DEBUG "\talignment %d\n", vol->alignment);
91 printk(KERN_DEBUG "\tdata_pad %d\n", vol->data_pad);
92 printk(KERN_DEBUG "\tvol_type %d\n", vol->vol_type);
93 printk(KERN_DEBUG "\tname_len %d\n", vol->name_len);
94 printk(KERN_DEBUG "\tusable_leb_size %d\n", vol->usable_leb_size);
95 printk(KERN_DEBUG "\tused_ebs %d\n", vol->used_ebs);
96 printk(KERN_DEBUG "\tused_bytes %lld\n", vol->used_bytes);
97 printk(KERN_DEBUG "\tlast_eb_bytes %d\n", vol->last_eb_bytes);
98 printk(KERN_DEBUG "\tcorrupted %d\n", vol->corrupted);
99 printk(KERN_DEBUG "\tupd_marker %d\n", vol->upd_marker);
100
101 if (vol->name_len <= UBI_VOL_NAME_MAX &&
102 strnlen(vol->name, vol->name_len + 1) == vol->name_len) {
103 printk(KERN_DEBUG "\tname %s\n", vol->name);
104 } else {
105 printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n",
106 vol->name[0], vol->name[1], vol->name[2],
107 vol->name[3], vol->name[4]);
108 }
109 }
110
111 /**
112 * ubi_dbg_dump_vtbl_record - dump a &struct ubi_vtbl_record object.
113 * @r: the object to dump
114 * @idx: volume table index
115 */
116 void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
117 {
118 int name_len = be16_to_cpu(r->name_len);
119
120 printk(KERN_DEBUG "Volume table record %d dump:\n", idx);
121 printk(KERN_DEBUG "\treserved_pebs %d\n",
122 be32_to_cpu(r->reserved_pebs));
123 printk(KERN_DEBUG "\talignment %d\n", be32_to_cpu(r->alignment));
124 printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(r->data_pad));
125 printk(KERN_DEBUG "\tvol_type %d\n", (int)r->vol_type);
126 printk(KERN_DEBUG "\tupd_marker %d\n", (int)r->upd_marker);
127 printk(KERN_DEBUG "\tname_len %d\n", name_len);
128
129 if (r->name[0] == '\0') {
130 printk(KERN_DEBUG "\tname NULL\n");
131 return;
132 }
133
134 if (name_len <= UBI_VOL_NAME_MAX &&
135 strnlen(&r->name[0], name_len + 1) == name_len) {
136 printk(KERN_DEBUG "\tname %s\n", &r->name[0]);
137 } else {
138 printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n",
139 r->name[0], r->name[1], r->name[2], r->name[3],
140 r->name[4]);
141 }
142 printk(KERN_DEBUG "\tcrc %#08x\n", be32_to_cpu(r->crc));
143 }
144
145 /**
146 * ubi_dbg_dump_sv - dump a &struct ubi_scan_volume object.
147 * @sv: the object to dump
148 */
149 void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv)
150 {
151 printk(KERN_DEBUG "Volume scanning information dump:\n");
152 printk(KERN_DEBUG "\tvol_id %d\n", sv->vol_id);
153 printk(KERN_DEBUG "\thighest_lnum %d\n", sv->highest_lnum);
154 printk(KERN_DEBUG "\tleb_count %d\n", sv->leb_count);
155 printk(KERN_DEBUG "\tcompat %d\n", sv->compat);
156 printk(KERN_DEBUG "\tvol_type %d\n", sv->vol_type);
157 printk(KERN_DEBUG "\tused_ebs %d\n", sv->used_ebs);
158 printk(KERN_DEBUG "\tlast_data_size %d\n", sv->last_data_size);
159 printk(KERN_DEBUG "\tdata_pad %d\n", sv->data_pad);
160 }
161
162 /**
163 * ubi_dbg_dump_seb - dump a &struct ubi_scan_leb object.
164 * @seb: the object to dump
165 * @type: object type: 0 - not corrupted, 1 - corrupted
166 */
167 void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type)
168 {
169 printk(KERN_DEBUG "eraseblock scanning information dump:\n");
170 printk(KERN_DEBUG "\tec %d\n", seb->ec);
171 printk(KERN_DEBUG "\tpnum %d\n", seb->pnum);
172 if (type == 0) {
173 printk(KERN_DEBUG "\tlnum %d\n", seb->lnum);
174 printk(KERN_DEBUG "\tscrub %d\n", seb->scrub);
175 printk(KERN_DEBUG "\tsqnum %llu\n", seb->sqnum);
176 }
177 }
178
179 /**
180 * ubi_dbg_dump_mkvol_req - dump a &struct ubi_mkvol_req object.
181 * @req: the object to dump
182 */
183 void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req)
184 {
185 char nm[17];
186
187 printk(KERN_DEBUG "Volume creation request dump:\n");
188 printk(KERN_DEBUG "\tvol_id %d\n", req->vol_id);
189 printk(KERN_DEBUG "\talignment %d\n", req->alignment);
190 printk(KERN_DEBUG "\tbytes %lld\n", (long long)req->bytes);
191 printk(KERN_DEBUG "\tvol_type %d\n", req->vol_type);
192 printk(KERN_DEBUG "\tname_len %d\n", req->name_len);
193
194 memcpy(nm, req->name, 16);
195 nm[16] = 0;
196 printk(KERN_DEBUG "\t1st 16 characters of name: %s\n", nm);
197 }
198
199 #endif /* CONFIG_MTD_UBI_DEBUG */
200
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