linuxkpi: Add dmi_* function
dmi function are used to get smbios values. The DRM subsystem and drivers use it to enabled (or not) quirks. Reviewed by: hselasky Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D26046
This commit is contained in:
Emmanuel Vadot
parent
2b68c97337
commit
a91b408a36
46
sys/compat/linuxkpi/common/include/linux/dmi.h
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46
sys/compat/linuxkpi/common/include/linux/dmi.h
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@ -0,0 +1,46 @@
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/*-
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* Copyright (c) 2020 The FreeBSD Foundation
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*
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* This software was developed by Emmanuel Vadot under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __LINUX_DMI_H__
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#define __LINUX_DMI_H__
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#include <linux/mod_devicetable.h>
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int linux_dmi_check_system(const struct dmi_system_id *);
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bool linux_dmi_match(enum dmi_field, const char *);
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const struct dmi_system_id *linux_dmi_first_match(const struct dmi_system_id *);
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const char *linux_dmi_get_system_info(int);
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#define dmi_check_system(sysid) linux_dmi_check_system(sysid)
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#define dmi_match(f, str) linux_dmi_match(f, str)
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#define dmi_first_match(sysid) linux_dmi_first_match(sysid)
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#define dmi_get_system_info(sysid) linux_dmi_get_system_info(sysid)
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#endif /* __LINUX_DMI_H__ */
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@ -180,7 +180,7 @@ struct file_operations {
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#define FMODE_READ FREAD
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#define FMODE_WRITE FWRITE
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#define FMODE_EXEC FEXEC
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#define FMODE_UNSIGNED_OFFSET 0x2000
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int __register_chrdev(unsigned int major, unsigned int baseminor,
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unsigned int count, const char *name,
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const struct file_operations *fops);
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72
sys/compat/linuxkpi/common/include/linux/mod_devicetable.h
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72
sys/compat/linuxkpi/common/include/linux/mod_devicetable.h
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@ -0,0 +1,72 @@
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/*-
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* Copyright (c) 2020 The FreeBSD Foundation
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*
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* This software was developed by Emmanuel Vadot under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __LINUX_MOD_DEVICETABLE_H__
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#define __LINUX_MOD_DEVICETABLE_H__
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enum dmi_field {
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DMI_NONE,
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DMI_BIOS_VENDOR,
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DMI_BIOS_VERSION,
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DMI_BIOS_DATE,
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DMI_SYS_VENDOR,
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DMI_PRODUCT_NAME,
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DMI_PRODUCT_VERSION,
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DMI_PRODUCT_SERIAL,
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DMI_PRODUCT_UUID,
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DMI_BOARD_VENDOR,
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DMI_BOARD_NAME,
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DMI_BOARD_VERSION,
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DMI_BOARD_SERIAL,
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DMI_BOARD_ASSET_TAG,
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DMI_CHASSIS_VENDOR,
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DMI_CHASSIS_TYPE,
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DMI_CHASSIS_VERSION,
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DMI_CHASSIS_SERIAL,
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DMI_CHASSIS_ASSET_TAG,
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DMI_STRING_MAX,
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};
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struct dmi_strmatch {
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unsigned char slot;
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char substr[79];
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};
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struct dmi_system_id {
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int (*callback)(const struct dmi_system_id *);
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const char *ident;
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struct dmi_strmatch matches[4];
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void *driver_data;
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};
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#define DMI_MATCH(a, b) { .slot = a, .substr = b }
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#define DMI_EXACT_MATCH(a, b) { .slot = a, .substr = b, }
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#endif /* __LINUX_MOD_DEVICETABLE_H__ */
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140
sys/compat/linuxkpi/common/src/linux_dmi.c
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140
sys/compat/linuxkpi/common/src/linux_dmi.c
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@ -0,0 +1,140 @@
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/*-
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* Copyright (c) 2020 The FreeBSD Foundation
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*
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* This software was developed by Emmanuel Vadot under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <linux/dmi.h>
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static char *dmi_data[DMI_STRING_MAX];
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static void
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linux_dmi_preload(void *arg)
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{
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dmi_data[DMI_BIOS_VENDOR] = kern_getenv("smbios.bios.vendor");
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dmi_data[DMI_BIOS_VERSION] = kern_getenv("smbios.bios.version");
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dmi_data[DMI_BIOS_DATE] = kern_getenv("smbios.bios.reldate");
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dmi_data[DMI_SYS_VENDOR] = kern_getenv("smbios.system.maker");
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dmi_data[DMI_PRODUCT_NAME] = kern_getenv("smbios.system.product");
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dmi_data[DMI_PRODUCT_VERSION] = kern_getenv("smbios.system.version");
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dmi_data[DMI_PRODUCT_SERIAL] = kern_getenv("smbios.system.serial");
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dmi_data[DMI_PRODUCT_UUID] = kern_getenv("smbios.system.uuid");
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dmi_data[DMI_BOARD_VENDOR] = kern_getenv("smbios.planar.maker");
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dmi_data[DMI_BOARD_NAME] = kern_getenv("smbios.planar.product");
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dmi_data[DMI_BOARD_VERSION] = kern_getenv("smbios.planar.version");
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dmi_data[DMI_BOARD_SERIAL] = kern_getenv("smbios.planar.serial");
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dmi_data[DMI_BOARD_ASSET_TAG] = kern_getenv("smbios.planar.tag");
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dmi_data[DMI_CHASSIS_VENDOR] = kern_getenv("smbios.chassis.maker");
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dmi_data[DMI_CHASSIS_TYPE] = kern_getenv("smbios.chassis.type");
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dmi_data[DMI_CHASSIS_VERSION] = kern_getenv("smbios.chassis.version");
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dmi_data[DMI_CHASSIS_SERIAL] = kern_getenv("smbios.chassis.serial");
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dmi_data[DMI_CHASSIS_ASSET_TAG] = kern_getenv("smbios.chassis.tag");
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}
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SYSINIT(linux_dmi_preload, SI_SUB_DRIVERS, SI_ORDER_ANY, linux_dmi_preload, NULL);
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/* Match a system against a field */
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bool
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linux_dmi_match(enum dmi_field f, const char *str)
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{
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if (f < DMI_STRING_MAX &&
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dmi_data[f] != NULL &&
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strcmp(dmi_data[f], str) == 0)
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return(true);
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return (false);
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}
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/* Match a system against the struct, all matches must be ok */
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static bool
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linux_dmi_matches(const struct dmi_system_id *dsi)
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{
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int i;
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for (i = 0; i < nitems(dsi->matches); i++) {
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if (dsi->matches[i].slot == DMI_NONE)
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break;
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if (dmi_match(dsi->matches[i].slot,
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dsi->matches[i].substr) == false)
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return (false);
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}
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return (true);
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}
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/* Return the string matching the field */
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const char *
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linux_dmi_get_system_info(int field)
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{
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if (field < DMI_STRING_MAX)
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return (dmi_data[field]);
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return (NULL);
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}
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/*
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* Match a system against the structs list
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* If a match is found return the corresponding structure.
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*/
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const struct dmi_system_id *
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linux_dmi_first_match(const struct dmi_system_id *list)
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{
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const struct dmi_system_id *dsi;
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for (dsi = list; dsi->matches[0].slot != 0; dsi++) {
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if (linux_dmi_matches(dsi))
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return (dsi);
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}
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return (NULL);
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}
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/*
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* Match a system against the structs list
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* For each match call the callback with the corresponding data
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* Return the number of matches.
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*/
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int
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linux_dmi_check_system(const struct dmi_system_id *sysid)
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{
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const struct dmi_system_id *dsi;
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int matches = 0;
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for (dsi = sysid; dsi->matches[0].slot != 0; dsi++) {
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if (linux_dmi_matches(dsi)) {
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matches++;
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if (dsi->callback && dsi->callback(dsi))
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break;
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}
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}
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return (matches);
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}
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@ -4510,6 +4510,8 @@ compat/linuxkpi/common/src/linux_compat.c optional compat_linuxkpi \
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compile-with "${LINUXKPI_C}"
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compat/linuxkpi/common/src/linux_current.c optional compat_linuxkpi \
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compile-with "${LINUXKPI_C}"
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compat/linuxkpi/common/src/linux_dmi.c optional compat_linuxkpi \
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compile-with "${LINUXKPI_C}"
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compat/linuxkpi/common/src/linux_hrtimer.c optional compat_linuxkpi \
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compile-with "${LINUXKPI_C}"
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compat/linuxkpi/common/src/linux_kthread.c optional compat_linuxkpi \
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@ -4,6 +4,7 @@
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KMOD= linuxkpi
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SRCS= linux_compat.c \
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linux_current.c \
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linux_dmi.c \
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linux_hrtimer.c \
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linux_idr.c \
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linux_kmod.c \
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