^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Common functions for kernel modules using Dell SMBIOS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) Red Hat <mjg@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2014 Pali Rohár <pali@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Based on documentation in the libsmbios package:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (C) 2005-2014 Dell Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifndef _DELL_SMBIOS_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define _DELL_SMBIOS_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <uapi/linux/wmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /* Classes and selects used only in kernel drivers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define CLASS_KBD_BACKLIGHT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define SELECT_KBD_BACKLIGHT 11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /* Tokens used in kernel drivers, any of these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * should be filtered from userspace access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define BRIGHTNESS_TOKEN 0x007d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define KBD_LED_AC_TOKEN 0x0451
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define KBD_LED_OFF_TOKEN 0x01E1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define KBD_LED_ON_TOKEN 0x01E2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define KBD_LED_AUTO_TOKEN 0x01E3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define KBD_LED_AUTO_25_TOKEN 0x02EA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define KBD_LED_AUTO_50_TOKEN 0x02EB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define KBD_LED_AUTO_75_TOKEN 0x02EC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define KBD_LED_AUTO_100_TOKEN 0x02F6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define GLOBAL_MIC_MUTE_ENABLE 0x0364
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define GLOBAL_MIC_MUTE_DISABLE 0x0365
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct notifier_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct calling_interface_token {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u16 tokenID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) u16 location;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) u16 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u16 stringlength;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) struct calling_interface_structure {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct dmi_header header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) u16 cmdIOAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) u8 cmdIOCode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) u32 supportedCmds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct calling_interface_token tokens[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int dell_smbios_register_device(struct device *d, void *call_fn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void dell_smbios_unregister_device(struct device *d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int dell_smbios_error(int value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) int dell_smbios_call_filter(struct device *d,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct calling_interface_buffer *buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) int dell_smbios_call(struct calling_interface_buffer *buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct calling_interface_token *dell_smbios_find_token(int tokenid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) enum dell_laptop_notifier_actions {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) DELL_LAPTOP_KBD_BACKLIGHT_BRIGHTNESS_CHANGED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int dell_laptop_register_notifier(struct notifier_block *nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int dell_laptop_unregister_notifier(struct notifier_block *nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) void dell_laptop_call_notifier(unsigned long action, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* for the supported backends */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #ifdef CONFIG_DELL_SMBIOS_WMI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) int init_dell_smbios_wmi(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) void exit_dell_smbios_wmi(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #else /* CONFIG_DELL_SMBIOS_WMI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static inline int init_dell_smbios_wmi(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) static inline void exit_dell_smbios_wmi(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) #endif /* CONFIG_DELL_SMBIOS_WMI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #ifdef CONFIG_DELL_SMBIOS_SMM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int init_dell_smbios_smm(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) void exit_dell_smbios_smm(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #else /* CONFIG_DELL_SMBIOS_SMM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static inline int init_dell_smbios_smm(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static inline void exit_dell_smbios_smm(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #endif /* CONFIG_DELL_SMBIOS_SMM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #endif /* _DELL_SMBIOS_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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