include/linux/firmware.h

   1 #ifndef _LINUX_FIRMWARE_H
   2 #define _LINUX_FIRMWARE_H
   3 #include <linux/module.h>
   4 #include <linux/types.h>
   5 #define FIRMWARE_NAME_MAX 30
   6 #define FW_ACTION_NOHOTPLUG 0
   7 #define FW_ACTION_HOTPLUG 1
   8
   9 struct firmware {
  10         size_t size;
  11         u8 *data;
  12 };
  13
  14 struct device;
  15
  16 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
  17 int request_firmware(const struct firmware **fw, const char *name,
  18                      struct device *device);
  19 int request_firmware_nowait(
  20         struct module *module, int uevent,
  21         const char *name, struct device *device, void *context,
  22         void (*cont)(const struct firmware *fw, void *context));
  23
  24 void release_firmware(const struct firmware *fw);
  25 #else
  26 static inline int request_firmware(const struct firmware **fw,
  27                                    const char *name,
  28                                    struct device *device)
  29 {
  30         return -EINVAL;
  31 }
  32 static inline int request_firmware_nowait(
  33         struct module *module, int uevent,
  34         const char *name, struct device *device, void *context,
  35         void (*cont)(const struct firmware *fw, void *context))
  36 {
  37         return -EINVAL;
  38 }
  39
  40 static inline void release_firmware(const struct firmware *fw)
  41 {
  42 }
  43 #endif
  44
  45 #endif