include/linux/bcm47xx_nvram.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  */
   4
   5 #ifndef __BCM47XX_NVRAM_H
   6 #define __BCM47XX_NVRAM_H
   7
   8 #include <linux/errno.h>
   9 #include <linux/types.h>
  10 #include <linux/kernel.h>
  11 #include <linux/vmalloc.h>
  12
  13 #ifdef CONFIG_BCM47XX_NVRAM
  14 int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
  15 int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
  16 int bcm47xx_nvram_gpio_pin(const char *name);
  17 char *bcm47xx_nvram_get_contents(size_t *val_len);
  18 static inline void bcm47xx_nvram_release_contents(char *nvram)
  19 {
  20         vfree(nvram);
  21 };
  22 #else
  23 static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
  24 {
  25         return -ENOTSUPP;
  26 };
  27 static inline int bcm47xx_nvram_getenv(const char *name, char *val,
  28                                        size_t val_len)
  29 {
  30         return -ENOTSUPP;
  31 };
  32 static inline int bcm47xx_nvram_gpio_pin(const char *name)
  33 {
  34         return -ENOTSUPP;
  35 };
  36
  37 static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
  38 {
  39         return NULL;
  40 };
  41
  42 static inline void bcm47xx_nvram_release_contents(char *nvram)
  43 {
  44 };
  45 #endif
  46
  47 #endif /* __BCM47XX_NVRAM_H */