1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
#ifndef _REG_FIELD_H
#define _REG_FIELD_H
#include <stdint.h>
#include <stdarg.h>
enum cmd_op {
CMD_OP_GET = (1 << 0),
CMD_OP_SET = (1 << 1),
CMD_OP_EXEC = (1 << 2),
};
enum pstate {
ST_IN_CMD,
ST_IN_ARG,
};
struct strbuf {
uint8_t idx;
char buf[32];
};
struct cmd_state {
struct strbuf cmd;
struct strbuf arg;
enum pstate state;
void (*out)(const char *format, va_list ap);
};
struct cmd {
const char *cmd;
uint32_t ops;
int (*cb)(struct cmd_state *cs, enum cmd_op op, const char *cmd,
int argc, char **argv);
const char *help;
};
/* structure describing a field in a register */
struct reg_field {
uint8_t reg;
uint8_t shift;
uint8_t width;
};
struct reg_field_ops {
const struct reg_field *fields;
const char **field_names;
uint32_t num_fields;
void *data;
int (*write_cb)(void *data, uint32_t reg, uint32_t val);
uint32_t (*read_cb)(void *data, uint32_t reg);
};
uint32_t reg_field_read(struct reg_field_ops *ops, struct reg_field *field);
int reg_field_write(struct reg_field_ops *ops, struct reg_field *field, uint32_t val);
int reg_field_cmd(struct cmd_state *cs, enum cmd_op op,
const char *cmd, int argc, char **argv,
struct reg_field_ops *ops);
#endif
|
