DigiGoon/android_kernel_xiaomi_sm8350
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misc: Introduce simplified xiaomi hardware identification driver

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Change-Id: I6ae7a76dcc687fe8fa9edb5c119182d2c32462be
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Arian 2022-01-06 23:24:52 +00:00 • committed by Giovanni Ricca
parent d0ab7719af
commit a01318f976
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4 changed files with 115 additions and 0 deletions
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6
drivers/misc/Kconfig
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@ -524,6 +524,12 @@ config HISI_HIKEY_USB
help
If you say yes here you get support for usb functionality of HiSilicon Hikey Platform.
config MI_HARDWARE_ID
tristate "Xiaomi hardware identification module"
default n
help
This adds support for mi hwid.
source "drivers/misc/c2port/Kconfig"
source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"

1
drivers/misc/Makefile
View file

@ -65,3 +65,4 @@ qseecom-mod-$(CONFIG_COMPAT) += compat_qseecom.o
obj-$(CONFIG_PROFILER) += profiler.o
obj-$(CONFIG_WIGIG_SENSING_SPI) += wigig_sensing.o
obj-$(CONFIG_HISI_HIKEY_USB) += hisi_hikey_usb.o
obj-$(CONFIG_MI_HARDWARE_ID) += hwid.o

63
drivers/misc/hwid.c Normal file
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@ -0,0 +1,63 @@
/*
* Copyright (C) 2021 XiaoMi, Inc.
* 2022 The LineageOS Project
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <linux/hwid.h>
#include <linux/module.h>
#define HW_MAJOR_VERSION_SHIFT 16
#define HW_MINOR_VERSION_SHIFT 0
#define HW_COUNTRY_VERSION_SHIFT 20
#define HW_BUILD_VERSION_SHIFT 16
#define HW_MAJOR_VERSION_MASK 0xFFFF0000
#define HW_MINOR_VERSION_MASK 0x0000FFFF
#define HW_COUNTRY_VERSION_MASK 0xFFF00000
#define HW_BUILD_VERSION_MASK 0x000F0000
static uint project;
module_param(project, uint, 0444);
static uint hwid_value;
module_param(hwid_value, uint, 0444);
uint32_t get_hw_version_platform(void)
{
return project;
}
EXPORT_SYMBOL(get_hw_version_platform);
uint32_t get_hw_id_value(void)
{
return hwid_value;
}
EXPORT_SYMBOL(get_hw_id_value);
uint32_t get_hw_country_version(void)
{
return (hwid_value & HW_COUNTRY_VERSION_MASK) >> HW_COUNTRY_VERSION_SHIFT;
}
EXPORT_SYMBOL(get_hw_country_version);
uint32_t get_hw_version_major(void)
{
return (hwid_value & HW_MAJOR_VERSION_MASK) >> HW_MAJOR_VERSION_SHIFT;
}
EXPORT_SYMBOL(get_hw_version_major);
uint32_t get_hw_version_minor(void)
{
return (hwid_value & HW_MINOR_VERSION_MASK) >> HW_MINOR_VERSION_SHIFT;
}
EXPORT_SYMBOL(get_hw_version_minor);
uint32_t get_hw_version_build(void)
{
return (hwid_value & HW_BUILD_VERSION_MASK) >> HW_BUILD_VERSION_SHIFT;
}
EXPORT_SYMBOL(get_hw_version_build);
MODULE_AUTHOR("weixiaotian1@xiaomi.com");
MODULE_LICENSE("GPL v2");

45
include/linux/hwid.h Normal file
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@ -0,0 +1,45 @@
/*
* Copyright (C) 2021 XiaoMi, Inc.
* 2022 The LineageOS Project
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __HWID_H__
#define __HWID_H__
#include <linux/types.h>
#define HARDWARE_PROJECT_UNKNOWN 0
#define HARDWARE_PROJECT_J18 1
#define HARDWARE_PROJECT_K1 2
#define HARDWARE_PROJECT_K2 3
#define HARDWARE_PROJECT_K11 4
#define HARDWARE_PROJECT_K1A 5
#define HARDWARE_PROJECT_K9 6
#define HARDWARE_PROJECT_K8 7
#define HARDWARE_PROJECT_K3S 8
#define HARDWARE_PROJECT_J18S 9
#define HARDWARE_PROJECT_K9D 10
#define HARDWARE_PROJECT_K9B 11
#define HARDWARE_PROJECT_K9E 12
#define HARDWARE_PROJECT_L9 13
#define HARDWARE_PROJECT_M20 14
typedef enum {
CountryCN = 0x00,
CountryGlobal = 0x01,
CountryIndia = 0x02,
CountryJapan = 0x03,
INVALID = 0x04,
CountryIDMax = 0x7FFFFFFF
} CountryType;
uint32_t get_hw_version_platform(void);
uint32_t get_hw_id_value(void);
uint32_t get_hw_country_version(void);
uint32_t get_hw_version_major(void);
uint32_t get_hw_version_minor(void);
uint32_t get_hw_version_build(void);
#endif /* __HWID_H__ */