diff options
Diffstat (limited to 'drivers/mtd/ubi/debug.h')
-rw-r--r-- | drivers/mtd/ubi/debug.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h new file mode 100644 index 000000000000..f816ad9a36c0 --- /dev/null +++ b/drivers/mtd/ubi/debug.h | |||
@@ -0,0 +1,161 @@ | |||
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 | #ifndef __UBI_DEBUG_H__ | ||
22 | #define __UBI_DEBUG_H__ | ||
23 | |||
24 | #ifdef CONFIG_MTD_UBI_DEBUG | ||
25 | #include <linux/random.h> | ||
26 | |||
27 | #define ubi_assert(expr) BUG_ON(!(expr)) | ||
28 | #define dbg_err(fmt, ...) ubi_err(fmt, ##__VA_ARGS__) | ||
29 | #else | ||
30 | #define ubi_assert(expr) ({}) | ||
31 | #define dbg_err(fmt, ...) ({}) | ||
32 | #endif | ||
33 | |||
34 | #ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT | ||
35 | #define DBG_DISABLE_BGT 1 | ||
36 | #else | ||
37 | #define DBG_DISABLE_BGT 0 | ||
38 | #endif | ||
39 | |||
40 | #ifdef CONFIG_MTD_UBI_DEBUG_MSG | ||
41 | /* Generic debugging message */ | ||
42 | #define dbg_msg(fmt, ...) \ | ||
43 | printk(KERN_DEBUG "UBI DBG: %s: " fmt "\n", __FUNCTION__, ##__VA_ARGS__) | ||
44 | |||
45 | #define ubi_dbg_dump_stack() dump_stack() | ||
46 | |||
47 | struct ubi_ec_hdr; | ||
48 | struct ubi_vid_hdr; | ||
49 | struct ubi_volume; | ||
50 | struct ubi_vtbl_record; | ||
51 | struct ubi_scan_volume; | ||
52 | struct ubi_scan_leb; | ||
53 | struct ubi_mkvol_req; | ||
54 | |||
55 | void ubi_dbg_print(int type, const char *func, const char *fmt, ...); | ||
56 | void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr); | ||
57 | void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr); | ||
58 | void ubi_dbg_dump_vol_info(const struct ubi_volume *vol); | ||
59 | void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx); | ||
60 | void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv); | ||
61 | void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type); | ||
62 | void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); | ||
63 | void ubi_dbg_hexdump(const void *buf, int size); | ||
64 | |||
65 | #else | ||
66 | |||
67 | #define dbg_msg(fmt, ...) ({}) | ||
68 | #define ubi_dbg_dump_stack() ({}) | ||
69 | #define ubi_dbg_print(func, fmt, ...) ({}) | ||
70 | #define ubi_dbg_dump_ec_hdr(ec_hdr) ({}) | ||
71 | #define ubi_dbg_dump_vid_hdr(vid_hdr) ({}) | ||
72 | #define ubi_dbg_dump_vol_info(vol) ({}) | ||
73 | #define ubi_dbg_dump_vtbl_record(r, idx) ({}) | ||
74 | #define ubi_dbg_dump_sv(sv) ({}) | ||
75 | #define ubi_dbg_dump_seb(seb, type) ({}) | ||
76 | #define ubi_dbg_dump_mkvol_req(req) ({}) | ||
77 | #define ubi_dbg_hexdump(buf, size) ({}) | ||
78 | |||
79 | #endif /* CONFIG_MTD_UBI_DEBUG_MSG */ | ||
80 | |||
81 | #ifdef CONFIG_MTD_UBI_DEBUG_MSG_EBA | ||
82 | /* Messages from the eraseblock association unit */ | ||
83 | #define dbg_eba(fmt, ...) \ | ||
84 | printk(KERN_DEBUG "UBI DBG eba: %s: " fmt "\n", __FUNCTION__, \ | ||
85 | ##__VA_ARGS__) | ||
86 | #else | ||
87 | #define dbg_eba(fmt, ...) ({}) | ||
88 | #endif | ||
89 | |||
90 | #ifdef CONFIG_MTD_UBI_DEBUG_MSG_WL | ||
91 | /* Messages from the wear-leveling unit */ | ||
92 | #define dbg_wl(fmt, ...) \ | ||
93 | printk(KERN_DEBUG "UBI DBG wl: %s: " fmt "\n", __FUNCTION__, \ | ||
94 | ##__VA_ARGS__) | ||
95 | #else | ||
96 | #define dbg_wl(fmt, ...) ({}) | ||
97 | #endif | ||
98 | |||
99 | #ifdef CONFIG_MTD_UBI_DEBUG_MSG_IO | ||
100 | /* Messages from the input/output unit */ | ||
101 | #define dbg_io(fmt, ...) \ | ||
102 | printk(KERN_DEBUG "UBI DBG io: %s: " fmt "\n", __FUNCTION__, \ | ||
103 | ##__VA_ARGS__) | ||
104 | #else | ||
105 | #define dbg_io(fmt, ...) ({}) | ||
106 | #endif | ||
107 | |||
108 | #ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD | ||
109 | /* Initialization and build messages */ | ||
110 | #define dbg_bld(fmt, ...) \ | ||
111 | printk(KERN_DEBUG "UBI DBG bld: %s: " fmt "\n", __FUNCTION__, \ | ||
112 | ##__VA_ARGS__) | ||
113 | #else | ||
114 | #define dbg_bld(fmt, ...) ({}) | ||
115 | #endif | ||
116 | |||
117 | #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS | ||
118 | /** | ||
119 | * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip. | ||
120 | * | ||
121 | * Returns non-zero if a bit-flip should be emulated, otherwise returns zero. | ||
122 | */ | ||
123 | static inline int ubi_dbg_is_bitflip(void) | ||
124 | { | ||
125 | return !(random32() % 200); | ||
126 | } | ||
127 | #else | ||
128 | #define ubi_dbg_is_bitflip() 0 | ||
129 | #endif | ||
130 | |||
131 | #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES | ||
132 | /** | ||
133 | * ubi_dbg_is_write_failure - if it is time to emulate a write failure. | ||
134 | * | ||
135 | * Returns non-zero if a write failure should be emulated, otherwise returns | ||
136 | * zero. | ||
137 | */ | ||
138 | static inline int ubi_dbg_is_write_failure(void) | ||
139 | { | ||
140 | return !(random32() % 500); | ||
141 | } | ||
142 | #else | ||
143 | #define ubi_dbg_is_write_failure() 0 | ||
144 | #endif | ||
145 | |||
146 | #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES | ||
147 | /** | ||
148 | * ubi_dbg_is_erase_failure - if its time to emulate an erase failure. | ||
149 | * | ||
150 | * Returns non-zero if an erase failure should be emulated, otherwise returns | ||
151 | * zero. | ||
152 | */ | ||
153 | static inline int ubi_dbg_is_erase_failure(void) | ||
154 | { | ||
155 | return !(random32() % 400); | ||
156 | } | ||
157 | #else | ||
158 | #define ubi_dbg_is_erase_failure() 0 | ||
159 | #endif | ||
160 | |||
161 | #endif /* !__UBI_DEBUG_H__ */ | ||