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1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_FIRMWARE_H
3 #define _LINUX_FIRMWARE_H
5 #include <linux/types.h>
6 #include <linux/compiler.h>
9 #define FW_ACTION_NOHOTPLUG 0
10 #define FW_ACTION_HOTPLUG 1
17 /* firmware loader private fields */
30 /* We have to play tricks here much like stringify() to get the
31 __COUNTER__ macro to be expanded as we want it */
32 #define __fw_concat1(x, y) x##y
33 #define __fw_concat(x, y) __fw_concat1(x, y)
35 #define DECLARE_BUILTIN_FIRMWARE(name, blob) \
36 DECLARE_BUILTIN_FIRMWARE_SIZE(name, &(blob), sizeof(blob))
38 #define DECLARE_BUILTIN_FIRMWARE_SIZE(name, blob, size) \
39 static const struct builtin_fw __fw_concat(__builtin_fw,__COUNTER__) \
40 __used __section(.builtin_fw) = { name, blob, size }
42 #if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE))
43 int request_firmware(const struct firmware
**fw
, const char *name
,
44 struct device
*device
);
45 int firmware_request_nowarn(const struct firmware
**fw
, const char *name
,
46 struct device
*device
);
47 int firmware_request_platform(const struct firmware
**fw
, const char *name
,
48 struct device
*device
);
49 int request_firmware_nowait(
50 struct module
*module
, bool uevent
,
51 const char *name
, struct device
*device
, gfp_t gfp
, void *context
,
52 void (*cont
)(const struct firmware
*fw
, void *context
));
53 int request_firmware_direct(const struct firmware
**fw
, const char *name
,
54 struct device
*device
);
55 int request_firmware_into_buf(const struct firmware
**firmware_p
,
56 const char *name
, struct device
*device
, void *buf
, size_t size
);
58 void release_firmware(const struct firmware
*fw
);
60 static inline int request_firmware(const struct firmware
**fw
,
62 struct device
*device
)
67 static inline int firmware_request_nowarn(const struct firmware
**fw
,
69 struct device
*device
)
74 static inline int firmware_request_platform(const struct firmware
**fw
,
76 struct device
*device
)
81 static inline int request_firmware_nowait(
82 struct module
*module
, bool uevent
,
83 const char *name
, struct device
*device
, gfp_t gfp
, void *context
,
84 void (*cont
)(const struct firmware
*fw
, void *context
))
89 static inline void release_firmware(const struct firmware
*fw
)
93 static inline int request_firmware_direct(const struct firmware
**fw
,
95 struct device
*device
)
100 static inline int request_firmware_into_buf(const struct firmware
**firmware_p
,
101 const char *name
, struct device
*device
, void *buf
, size_t size
)
108 int firmware_request_cache(struct device
*device
, const char *name
);