include/linux/bcm47xx_nvram.h

   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/types.h>
  12 #include <linux/kernel.h>
  13 #include <linux/vmalloc.h>
  14
  15 #ifdef CONFIG_BCM47XX_NVRAM
  16 int bcm47xx_nvram_init_from_mem(u32 base, u32 lim);
  17 int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len);
  18 int bcm47xx_nvram_gpio_pin(const char *name);
  19 char *bcm47xx_nvram_get_contents(size_t *val_len);
  20 static inline void bcm47xx_nvram_release_contents(char *nvram)
  21 {
  22         vfree(nvram);
  23 };
  24 #else
  25 static inline int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
  26 {
  27         return -ENOTSUPP;
  28 };
  29 static inline int bcm47xx_nvram_getenv(const char *name, char *val,
  30                                        size_t val_len)
  31 {
  32         return -ENOTSUPP;
  33 };
  34 static inline int bcm47xx_nvram_gpio_pin(const char *name)
  35 {
  36         return -ENOTSUPP;
  37 };
  38
  39 static inline char *bcm47xx_nvram_get_contents(size_t *val_len)
  40 {
  41         return NULL;
  42 };
  43
  44 static inline void bcm47xx_nvram_release_contents(char *nvram)
  45 {
  46 };
  47 #endif
  48
  49 #endif /* __BCM47XX_NVRAM_H */