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-rw-r--r--include/linux/firmware.h23
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index 6c7eff2ebada..c8ecf5b2a207 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -1,18 +1,39 @@
1#ifndef _LINUX_FIRMWARE_H 1#ifndef _LINUX_FIRMWARE_H
2#define _LINUX_FIRMWARE_H 2#define _LINUX_FIRMWARE_H
3
3#include <linux/module.h> 4#include <linux/module.h>
4#include <linux/types.h> 5#include <linux/types.h>
6#include <linux/compiler.h>
7
5#define FIRMWARE_NAME_MAX 30 8#define FIRMWARE_NAME_MAX 30
6#define FW_ACTION_NOHOTPLUG 0 9#define FW_ACTION_NOHOTPLUG 0
7#define FW_ACTION_HOTPLUG 1 10#define FW_ACTION_HOTPLUG 1
8 11
9struct firmware { 12struct firmware {
10 size_t size; 13 size_t size;
11 u8 *data; 14 const u8 *data;
12}; 15};
13 16
14struct device; 17struct device;
15 18
19struct builtin_fw {
20 char *name;
21 void *data;
22 unsigned long size;
23};
24
25/* We have to play tricks here much like stringify() to get the
26 __COUNTER__ macro to be expanded as we want it */
27#define __fw_concat1(x, y) x##y
28#define __fw_concat(x, y) __fw_concat1(x, y)
29
30#define DECLARE_BUILTIN_FIRMWARE(name, blob) \
31 DECLARE_BUILTIN_FIRMWARE_SIZE(name, &(blob), sizeof(blob))
32
33#define DECLARE_BUILTIN_FIRMWARE_SIZE(name, blob, size) \
34 static const struct builtin_fw __fw_concat(__builtin_fw,__COUNTER__) \
35 __used __section(.builtin_fw) = { name, blob, size }
36
16#if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE)) 37#if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE))
17int request_firmware(const struct firmware **fw, const char *name, 38int request_firmware(const struct firmware **fw, const char *name,
18 struct device *device); 39 struct device *device);