blob: 3af7205b302fe351a0eb43883da16ff0a9865ac6 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __FIRMWARE_FALLBACK_H
#define __FIRMWARE_FALLBACK_H
#include <linux/firmware.h>
#include <linux/device.h>
#include "firmware.h"
/**
* struct firmware_fallback_config - firmware fallback configuration settings
*
* Helps describe and fine tune the fallback mechanism.
*
* @force_sysfs_fallback: force the sysfs fallback mechanism to be used
* as if one had enabled CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y.
* Useful to help debug a CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
* functionality on a kernel where that config entry has been disabled.
* @ignore_sysfs_fallback: force to disable the sysfs fallback mechanism.
* This emulates the behaviour as if we had set the kernel
* config CONFIG_FW_LOADER_USER_HELPER=n.
* @old_timeout: for internal use
* @loading_timeout: the timeout to wait for the fallback mechanism before
* giving up, in seconds.
*/
struct firmware_fallback_config {
unsigned int force_sysfs_fallback;
unsigned int ignore_sysfs_fallback;
int old_timeout;
int loading_timeout;
};
#ifdef CONFIG_FW_LOADER_USER_HELPER
int firmware_fallback_sysfs(struct firmware *fw, const char *name,
struct device *device,
u32 opt_flags,
int ret);
void kill_pending_fw_fallback_reqs(bool only_kill_custom);
void fw_fallback_set_cache_timeout(void);
void fw_fallback_set_default_timeout(void);
int register_sysfs_loader(void);
void unregister_sysfs_loader(void);
#else /* CONFIG_FW_LOADER_USER_HELPER */
static inline int firmware_fallback_sysfs(struct firmware *fw, const char *name,
struct device *device,
u32 opt_flags,
int ret)
{
/* Keep carrying over the same error */
return ret;
}
static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }
static inline void fw_fallback_set_cache_timeout(void) { }
static inline void fw_fallback_set_default_timeout(void) { }
static inline int register_sysfs_loader(void)
{
return 0;
}
static inline void unregister_sysfs_loader(void)
{
}
#endif /* CONFIG_FW_LOADER_USER_HELPER */
#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
int firmware_fallback_platform(struct fw_priv *fw_priv);
#else
static inline int firmware_fallback_platform(struct fw_priv *fw_priv)
{
return -ENOENT;
}
#endif
#endif /* __FIRMWARE_FALLBACK_H */
|
