1 /*
2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License as published by the
4 * Free Software Foundation; either version 2 of the License, or (at your
5 * option) any later version.
6 */
7
8 #ifndef __BCM47XX_NVRAM_H
9 #define __BCM47XX_NVRAM_H
10
11 #include <linux/errno.h>
12 #include <linux/types.h>
13 #include <linux/kernel.h>
14 #include <linux/vmalloc.h>
15
16 #ifdef CONFIG_BCM47XX_NVRAM
17 int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
18 int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
19 int bcm47xx_nvram_gpio_pin(const char *name);
20 char *bcm47xx_nvram_get_contents(size_t *val_len);
bcm47xx_nvram_release_contents(char * nvram)21 static inline void bcm47xx_nvram_release_contents(char *nvram)
22 {
23 vfree(nvram);
24 };
25 #else
bcm47xx_nvram_init_from_mem(u32 base,u32 lim)26 static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
27 {
28 return -ENOTSUPP;
29 };
bcm47xx_nvram_getenv(const char * name,char * val,size_t val_len)30 static inline int bcm47xx_nvram_getenv(const char *name, char *val,
31 size_t val_len)
32 {
33 return -ENOTSUPP;
34 };
bcm47xx_nvram_gpio_pin(const char * name)35 static inline int bcm47xx_nvram_gpio_pin(const char *name)
36 {
37 return -ENOTSUPP;
38 };
39
bcm47xx_nvram_get_contents(size_t * val_len)40 static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
41 {
42 return NULL;
43 };
44
bcm47xx_nvram_release_contents(char * nvram)45 static inline void bcm47xx_nvram_release_contents(char *nvram)
46 {
47 };
48 #endif
49
50 #endif /* __BCM47XX_NVRAM_H */
51