mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 03:05:21 +07:00
4255c30fe8
The Dell SMBIOS WMI interface will fail for some more complex calls unless a WMI hotfix has been included. Most platforms have this fix available in a maintenance BIOS release. In the case the driver is loaded on a platform without this fix, disable the userspace interface. A hotfix indicator is present in the dell-wmi-descriptor that represents whether or not more complex calls will work properly. "Simple" calls such as those used by dell-laptop and dell-wmi will continue to work properly so dell-smbios-wmi should not be blocked from binding and being used as the dell-smbios dispatcher. Suggested-by: Girish Prakash <girish.prakash@dell.com> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com> Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
29 lines
780 B
C
29 lines
780 B
C
/*
|
|
* Dell WMI descriptor driver
|
|
*
|
|
* Copyright (c) 2017 Dell Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _DELL_WMI_DESCRIPTOR_H_
|
|
#define _DELL_WMI_DESCRIPTOR_H_
|
|
|
|
#include <linux/wmi.h>
|
|
|
|
/* possible return values:
|
|
* -ENODEV: Descriptor GUID missing from WMI bus
|
|
* -EPROBE_DEFER: probing for dell-wmi-descriptor not yet run
|
|
* 0: valid descriptor, successfully probed
|
|
* < 0: invalid descriptor, don't probe dependent devices
|
|
*/
|
|
int dell_wmi_get_descriptor_valid(void);
|
|
|
|
bool dell_wmi_get_interface_version(u32 *version);
|
|
bool dell_wmi_get_size(u32 *size);
|
|
bool dell_wmi_get_hotfix(u32 *hotfix);
|
|
|
|
#endif
|