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 "\thdr_crc %#08x\n", 48 be32_to_cpu(ec_hdr->hdr_crc)); 49 printk(KERN_DEBUG "erase counter header hexdump:\n"); 50 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, 51 ec_hdr, UBI_EC_HDR_SIZE, 1); 52 } 53 54 /** 55 * ubi_dbg_dump_vid_hdr - dump a volume identifier header. 56 * @vid_hdr: the volume identifier header to dump 57 */ 58 void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr) 59 { 60 printk(KERN_DEBUG "Volume identifier header dump:\n"); 61 printk(KERN_DEBUG "\tmagic %08x\n", be32_to_cpu(vid_hdr->magic)); 62 printk(KERN_DEBUG "\tversion %d\n", (int)vid_hdr->version); 63 printk(KERN_DEBUG "\tvol_type %d\n", (int)vid_hdr->vol_type); 64 printk(KERN_DEBUG "\tcopy_flag %d\n", (int)vid_hdr->copy_flag); 65 printk(KERN_DEBUG "\tcompat %d\n", (int)vid_hdr->compat); 66 printk(KERN_DEBUG "\tvol_id %d\n", be32_to_cpu(vid_hdr->vol_id)); 67 printk(KERN_DEBUG "\tlnum %d\n", be32_to_cpu(vid_hdr->lnum)); 68 printk(KERN_DEBUG "\tdata_size %d\n", be32_to_cpu(vid_hdr->data_size)); 69 printk(KERN_DEBUG "\tused_ebs %d\n", be32_to_cpu(vid_hdr->used_ebs)); 70 printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(vid_hdr->data_pad)); 71 printk(KERN_DEBUG "\tsqnum %llu\n", 72 (unsigned long long)be64_to_cpu(vid_hdr->sqnum)); 73 printk(KERN_DEBUG "\thdr_crc %08x\n", be32_to_cpu(vid_hdr->hdr_crc)); 74 printk(KERN_DEBUG "Volume identifier header hexdump:\n"); 75 print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, 76 vid_hdr, UBI_VID_HDR_SIZE, 1); 77 } 78 79 /** 80 * ubi_dbg_dump_vol_info- dump volume information. 81 * @vol: UBI volume description object 82 */ 83 void ubi_dbg_dump_vol_info(const struct ubi_volume *vol) 84 { 85 printk(KERN_DEBUG "Volume information dump:\n"); 86 printk(KERN_DEBUG "\tvol_id %d\n", vol->vol_id); 87 printk(KERN_DEBUG "\treserved_pebs %d\n", vol->reserved_pebs); 88 printk(KERN_DEBUG "\talignment %d\n", vol->alignment); 89 printk(KERN_DEBUG "\tdata_pad %d\n", vol->data_pad); 90 printk(KERN_DEBUG "\tvol_type %d\n", vol->vol_type); 91 printk(KERN_DEBUG "\tname_len %d\n", vol->name_len); 92 printk(KERN_DEBUG "\tusable_leb_size %d\n", vol->usable_leb_size); 93 printk(KERN_DEBUG "\tused_ebs %d\n", vol->used_ebs); 94 printk(KERN_DEBUG "\tused_bytes %lld\n", vol->used_bytes); 95 printk(KERN_DEBUG "\tlast_eb_bytes %d\n", vol->last_eb_bytes); 96 printk(KERN_DEBUG "\tcorrupted %d\n", vol->corrupted); 97 printk(KERN_DEBUG "\tupd_marker %d\n", vol->upd_marker); 98 99 if (vol->name_len <= UBI_VOL_NAME_MAX && 100 strnlen(vol->name, vol->name_len + 1) == vol->name_len) { 101 printk(KERN_DEBUG "\tname %s\n", vol->name); 102 } else { 103 printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n", 104 vol->name[0], vol->name[1], vol->name[2], 105 vol->name[3], vol->name[4]); 106 } 107 } 108 109 /** 110 * ubi_dbg_dump_vtbl_record - dump a &struct ubi_vtbl_record object. 111 * @r: the object to dump 112 * @idx: volume table index 113 */ 114 void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx) 115 { 116 int name_len = be16_to_cpu(r->name_len); 117 118 printk(KERN_DEBUG "Volume table record %d dump:\n", idx); 119 printk(KERN_DEBUG "\treserved_pebs %d\n", 120 be32_to_cpu(r->reserved_pebs)); 121 printk(KERN_DEBUG "\talignment %d\n", be32_to_cpu(r->alignment)); 122 printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(r->data_pad)); 123 printk(KERN_DEBUG "\tvol_type %d\n", (int)r->vol_type); 124 printk(KERN_DEBUG "\tupd_marker %d\n", (int)r->upd_marker); 125 printk(KERN_DEBUG "\tname_len %d\n", name_len); 126 127 if (r->name[0] == '\0') { 128 printk(KERN_DEBUG "\tname NULL\n"); 129 return; 130 } 131 132 if (name_len <= UBI_VOL_NAME_MAX && 133 strnlen(&r->name[0], name_len + 1) == name_len) { 134 printk(KERN_DEBUG "\tname %s\n", &r->name[0]); 135 } else { 136 printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n", 137 r->name[0], r->name[1], r->name[2], r->name[3], 138 r->name[4]); 139 } 140 printk(KERN_DEBUG "\tcrc %#08x\n", be32_to_cpu(r->crc)); 141 } 142 143 /** 144 * ubi_dbg_dump_sv - dump a &struct ubi_scan_volume object. 145 * @sv: the object to dump 146 */ 147 void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv) 148 { 149 printk(KERN_DEBUG "Volume scanning information dump:\n"); 150 printk(KERN_DEBUG "\tvol_id %d\n", sv->vol_id); 151 printk(KERN_DEBUG "\thighest_lnum %d\n", sv->highest_lnum); 152 printk(KERN_DEBUG "\tleb_count %d\n", sv->leb_count); 153 printk(KERN_DEBUG "\tcompat %d\n", sv->compat); 154 printk(KERN_DEBUG "\tvol_type %d\n", sv->vol_type); 155 printk(KERN_DEBUG "\tused_ebs %d\n", sv->used_ebs); 156 printk(KERN_DEBUG "\tlast_data_size %d\n", sv->last_data_size); 157 printk(KERN_DEBUG "\tdata_pad %d\n", sv->data_pad); 158 } 159 160 /** 161 * ubi_dbg_dump_seb - dump a &struct ubi_scan_leb object. 162 * @seb: the object to dump 163 * @type: object type: 0 - not corrupted, 1 - corrupted 164 */ 165 void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type) 166 { 167 printk(KERN_DEBUG "eraseblock scanning information dump:\n"); 168 printk(KERN_DEBUG "\tec %d\n", seb->ec); 169 printk(KERN_DEBUG "\tpnum %d\n", seb->pnum); 170 if (type == 0) { 171 printk(KERN_DEBUG "\tlnum %d\n", seb->lnum); 172 printk(KERN_DEBUG "\tscrub %d\n", seb->scrub); 173 printk(KERN_DEBUG "\tsqnum %llu\n", seb->sqnum); 174 } 175 } 176 177 /** 178 * ubi_dbg_dump_mkvol_req - dump a &struct ubi_mkvol_req object. 179 * @req: the object to dump 180 */ 181 void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req) 182 { 183 char nm[17]; 184 185 printk(KERN_DEBUG "Volume creation request dump:\n"); 186 printk(KERN_DEBUG "\tvol_id %d\n", req->vol_id); 187 printk(KERN_DEBUG "\talignment %d\n", req->alignment); 188 printk(KERN_DEBUG "\tbytes %lld\n", (long long)req->bytes); 189 printk(KERN_DEBUG "\tvol_type %d\n", req->vol_type); 190 printk(KERN_DEBUG "\tname_len %d\n", req->name_len); 191 192 memcpy(nm, req->name, 16); 193 nm[16] = 0; 194 printk(KERN_DEBUG "\t1st 16 characters of name: %s\n", nm); 195 } 196 197 #endif /* CONFIG_MTD_UBI_DEBUG */ 198