include/linux/bcm47xx_nvram.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  */
0004
0005 #ifndef __BCM47XX_NVRAM_H
0006 #define __BCM47XX_NVRAM_H
0007
0008 #include <linux/errno.h>
0009 #include <linux/types.h>
0010 #include <linux/kernel.h>
0011 #include <linux/vmalloc.h>
0012
0013 #ifdef CONFIG_BCM47XX_NVRAM
0014 int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
0015 int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
0016 int bcm47xx_nvram_gpio_pin(const char *name);
0017 char *bcm47xx_nvram_get_contents(size_t *val_len);
0018 static inline void bcm47xx_nvram_release_contents(char *nvram)
0019 {
0020     vfree(nvram);
0021 };
0022 #else
0023 static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
0024 {
0025     return -ENOTSUPP;
0026 };
0027 static inline int bcm47xx_nvram_getenv(const char *name, char *val,
0028                        size_t val_len)
0029 {
0030     return -ENOTSUPP;
0031 };
0032 static inline int bcm47xx_nvram_gpio_pin(const char *name)
0033 {
0034     return -ENOTSUPP;
0035 };
0036
0037 static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
0038 {
0039     return NULL;
0040 };
0041
0042 static inline void bcm47xx_nvram_release_contents(char *nvram)
0043 {
0044 };
0045 #endif
0046
0047 #endif /* __BCM47XX_NVRAM_H */