#ifndef _LINUX_FIRMWARE_H #define _LINUX_FIRMWARE_H #include <linux/types.h> #include <linux/compiler.h> #include <linux/gfp.h> #define FW_ACTION_NOHOTPLUG 0 #define FW_ACTION_HOTPLUG 1 struct firmware { size_t size; const u8 *data; struct page **pages; /* firmware loader private fields */ void *priv; }; struct module; struct device; struct builtin_fw { char *name; void *data; unsigned long size; }; /* We have to play tricks here much like stringify() to get the __COUNTER__ macro to be expanded as we want it */ #define __fw_concat1(x, y) x##y #define __fw_concat(x, y) __fw_concat1(x, y) #define DECLARE_BUILTIN_FIRMWARE(name, blob) \ DECLARE_BUILTIN_FIRMWARE_SIZE(name, &(blob), sizeof(blob)) #define DECLARE_BUILTIN_FIRMWARE_SIZE(name, blob, size) \ static const struct builtin_fw __fw_concat(__builtin_fw,__COUNTER__) \ __used __section(.builtin_fw) = { name, blob, size } #if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE)) int request_firmware(const struct firmware **fw, const char *name, struct device *device); int request_firmware_nowait( struct module *module, bool uevent, const char *name, struct device *device, gfp_t gfp, void *context, void (*cont)(const struct firmware *fw, void *context)); void release_firmware(const struct firmware *fw); int cache_firmware(const char *name); int uncache_firmware(const char *name); #else static inline int request_firmware(const struct firmware **fw, const char *name, struct device *device) { return -EINVAL; } static inline int request_firmware_nowait( struct module *module, bool uevent, const char *name, struct device *device, gfp_t gfp, void *context, void (*cont)(const struct firmware *fw, void *context)) { return -EINVAL; } static inline void release_firmware(const struct firmware *fw) { } static inline int cache_firmware(const char *name) { return -ENOENT; } static inline int uncache_firmware(const char *name) { return -EINVAL; } #endif #endif