drivers: misc: therm_est: Add of_match_table
[linux-2.6.git] / drivers / misc / cb710 / debug.c
1 /*
2  *  cb710/debug.c
3  *
4  *  Copyright by Michał Mirosław, 2008-2009
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 #include <linux/cb710.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13
14 #define CB710_REG_COUNT         0x80
15
16 static const u16 allow[CB710_REG_COUNT/16] = {
17         0xFFF0, 0xFFFF, 0xFFFF, 0xFFFF,
18         0xFFF0, 0xFFFF, 0xFFFF, 0xFFFF,
19 };
20 static const char *const prefix[ARRAY_SIZE(allow)] = {
21         "MMC", "MMC", "MMC", "MMC",
22         "MS?", "MS?", "SM?", "SM?"
23 };
24
25 static inline int allow_reg_read(unsigned block, unsigned offset, unsigned bits)
26 {
27         unsigned mask = (1 << bits/8) - 1;
28         offset *= bits/8;
29         return ((allow[block] >> offset) & mask) == mask;
30 }
31
32 #define CB710_READ_REGS_TEMPLATE(t)                                     \
33 static void cb710_read_regs_##t(void __iomem *iobase,                   \
34         u##t *reg, unsigned select)                                     \
35 {                                                                       \
36         unsigned i, j;                                                  \
37                                                                         \
38         for (i = 0; i < ARRAY_SIZE(allow); ++i, reg += 16/(t/8)) {      \
39                 if (!(select & (1 << i)))                                       \
40                         continue;                                       \
41                                                                         \
42                 for (j = 0; j < 0x10/(t/8); ++j) {                      \
43                         if (!allow_reg_read(i, j, t))                   \
44                                 continue;                               \
45                         reg[j] = ioread##t(iobase                       \
46                                 + (i << 4) + (j * (t/8)));              \
47                 }                                                       \
48         }                                                               \
49 }
50
51 static const char cb710_regf_8[] = "%02X";
52 static const char cb710_regf_16[] = "%04X";
53 static const char cb710_regf_32[] = "%08X";
54 static const char cb710_xes[] = "xxxxxxxx";
55
56 #define CB710_DUMP_REGS_TEMPLATE(t)                                     \
57 static void cb710_dump_regs_##t(struct device *dev,                     \
58         const u##t *reg, unsigned select)                               \
59 {                                                                       \
60         const char *const xp = &cb710_xes[8 - t/4];                     \
61         const char *const format = cb710_regf_##t;                      \
62                                                                         \
63         char msg[100], *p;                                              \
64         unsigned i, j;                                                  \
65                                                                         \
66         for (i = 0; i < ARRAY_SIZE(allow); ++i, reg += 16/(t/8)) {      \
67                 if (!(select & (1 << i)))                               \
68                         continue;                                       \
69                 p = msg;                                                \
70                 for (j = 0; j < 0x10/(t/8); ++j) {                      \
71                         *p++ = ' ';                                     \
72                         if (j == 8/(t/8))                               \
73                                 *p++ = ' ';                             \
74                         if (allow_reg_read(i, j, t))                    \
75                                 p += sprintf(p, format, reg[j]);        \
76                         else                                            \
77                                 p += sprintf(p, "%s", xp);              \
78                 }                                                       \
79                 dev_dbg(dev, "%s 0x%02X %s\n", prefix[i], i << 4, msg); \
80         }                                                               \
81 }
82
83 #define CB710_READ_AND_DUMP_REGS_TEMPLATE(t)                            \
84 static void cb710_read_and_dump_regs_##t(struct cb710_chip *chip,       \
85         unsigned select)                                                \
86 {                                                                       \
87         u##t regs[CB710_REG_COUNT/sizeof(u##t)];                        \
88                                                                         \
89         memset(&regs, 0, sizeof(regs));                                 \
90         cb710_read_regs_##t(chip->iobase, regs, select);                \
91         cb710_dump_regs_##t(cb710_chip_dev(chip), regs, select);        \
92 }
93
94 #define CB710_REG_ACCESS_TEMPLATES(t)           \
95   CB710_READ_REGS_TEMPLATE(t)                   \
96   CB710_DUMP_REGS_TEMPLATE(t)                   \
97   CB710_READ_AND_DUMP_REGS_TEMPLATE(t)
98
99 CB710_REG_ACCESS_TEMPLATES(8)
100 CB710_REG_ACCESS_TEMPLATES(16)
101 CB710_REG_ACCESS_TEMPLATES(32)
102
103 void cb710_dump_regs(struct cb710_chip *chip, unsigned select)
104 {
105         if (!(select & CB710_DUMP_REGS_MASK))
106                 select = CB710_DUMP_REGS_ALL;
107         if (!(select & CB710_DUMP_ACCESS_MASK))
108                 select |= CB710_DUMP_ACCESS_8;
109
110         if (select & CB710_DUMP_ACCESS_32)
111                 cb710_read_and_dump_regs_32(chip, select);
112         if (select & CB710_DUMP_ACCESS_16)
113                 cb710_read_and_dump_regs_16(chip, select);
114         if (select & CB710_DUMP_ACCESS_8)
115                 cb710_read_and_dump_regs_8(chip, select);
116 }
117 EXPORT_SYMBOL_GPL(cb710_dump_regs);
118