blob: 90c88707df6e438436eee1ecd49ea3ef621fadf2 (
plain)
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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
#ifndef WIFI_UTIL_H_
#define WIFI_UTIL_H_
#include <stdint.h>
#include <avr/eeprom.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
/* Some of these macros are derived from the Linux Kernel sources. */
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#define offsetof(type, member) ((size_t)&((type *)0)->member)
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/* Memory barrier.
* The CPU doesn't have runtime reordering, so we just
* need a compiler memory clobber. */
#define mb() __asm__ __volatile__("" : : : "memory")
/* Convert something indirectly to a string */
#define __stringify(x) #x
#define stringify(x) __stringify(x)
/* Assertions */
void panic(const prog_char *msg) __attribute__((noreturn));
#define BUILD_BUG_ON(x) ((void)sizeof(char[1 - 2 * !!(x)]))
#define BUG_ON(x) \
do { \
if (unlikely(x)) \
panic(PSTR(__FILE__ \
stringify(__LINE__))); \
} while (0)
void infinite_sleep(void) __attribute__((noreturn));
/* Delay */
void mdelay(uint16_t msecs);
void udelay(uint16_t usecs);
typedef _Bool bool;
/* EEPROM access */
typedef char eeprom_char;
typedef uint8_t eeprom_uint8_t;
typedef uint16_t eeprom_uint16_t;
uint8_t eeprom_read8(const eeprom_uint8_t *addr);
uint16_t eeprom_read16(const eeprom_uint16_t *addr);
void eeprom_write8(eeprom_uint8_t *addr, uint8_t value);
void eeprom_write16(eeprom_uint16_t *addr, uint16_t value);
/* Convert a number (0-F) to a hexadecimal ASCII digit */
uint8_t hexdigit_to_ascii(uint8_t digit);
#define NUM16_NR_DIGITS 5
/* Convert a number to ascii.
* buf must be at least (NUM16_NR_DIGITS + 1) long */
void num16_to_ascii(uint8_t *buf, uint16_t v);
/* IRQ handling.
* We use a macro for irq_disable_save(), because stupid gcc is not
* able to properly optimize an inline function that returns a value.
*/
#define irq_disable_save() ({ \
uint8_t sreg_flags = SREG; \
cli(); \
sreg_flags; \
})
static inline void irq_restore(uint8_t sreg_flags)
{
SREG = sreg_flags;
}
#endif /* WIFI_UTIL_H_ */
|
