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smbios: Add API to generate SMBIOS type 28 Temperature Probe 

Based on DMTF SMBIOS Specification 3.5.0

Signed-off-by: Erik van den Bogaert <ebogaert@eltan.com>
Change-Id: I710124ca88dac9edb68aab98cf5950aa16c695d3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67926
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Erik van den Bogaert 2022-09-28 12:35:51 +02:00 committed by Martin Roth
parent 61ed4ef5d5
commit 93781523a5
2 changed files with 81 additions and 0 deletions
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29
src/arch/x86/smbios.c
View File

@ -1052,6 +1052,35 @@ static int smbios_write_type20(unsigned long *current, int *handle,
return totallen;
}
int smbios_write_type28(unsigned long *current, int *handle,
const char *name,
const enum smbios_temp_location location,
const enum smbios_temp_status status,
u16 max_value, u16 min_value,
u16 resolution, u16 tolerance,
u16 accuracy,
u32 oem,
u16 nominal_value)
{
struct smbios_type28 *t = smbios_carve_table(*current, SMBIOS_TEMPERATURE_PROBE,
sizeof(*t), *handle);
t->description = smbios_add_string(t->eos, name ? name : "Temperature");
t->location_and_status = location | (status << 5);
t->maximum_value = max_value;
t->minimum_value = min_value;
t->resolution = resolution;
t->tolerance = tolerance;
t->accuracy = accuracy;
t->oem_defined = oem;
t->nominal_value = nominal_value;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
static int smbios_write_type32(unsigned long *current, int handle)
{
struct smbios_type32 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_BOOT_INFORMATION,

52
src/include/smbios.h
View File

@ -34,6 +34,17 @@ int smbios_write_type38(unsigned long *current, int *handle,
int smbios_write_type41(unsigned long *current, int *handle,
const char *name, u8 instance, u16 segment,
u8 bus, u8 device, u8 function, u8 device_type);
enum smbios_temp_location;
enum smbios_temp_status;
int smbios_write_type28(unsigned long *current, int *handle,
const char *name,
const enum smbios_temp_location location,
const enum smbios_temp_status status,
u16 max_value, u16 min_value,
u16 resolution, u16 tolerance,
u16 accuracy,
u32 oem,
u16 nominal_value);
int smbios_write_type43(unsigned long *current, int *handle, const u32 vendor_id,
const u8 major_spec_ver, const u8 minor_spec_ver,
@ -255,6 +266,7 @@ typedef enum {
SMBIOS_MEMORY_DEVICE = 17,
SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19,
SMBIOS_MEMORY_DEVICE_MAPPED_ADDRESS = 20,
SMBIOS_TEMPERATURE_PROBE = 28,
SMBIOS_SYSTEM_BOOT_INFORMATION = 32,
SMBIOS_IPMI_DEVICE_INFORMATION = 38,
SMBIOS_ONBOARD_DEVICES_EXTENDED_INFORMATION = 41,
@ -921,6 +933,46 @@ struct smbios_type20 {
u8 eos[2];
} __packed;
/* Bit[7..5] = Temp status */
enum smbios_temp_status {
SMBIOS_TEMP_STATUS_OTHER = 0x01,
SMBIOS_TEMP_STATUS_UNKNOWN,
SMBIOS_TEMP_STATUS_OK,
SMBIOS_TEMP_STATUS_NONCRITICAL,
SMBIOS_TEMP_STATUS_CRITICAL,
SMBIOS_TEMP_STATUS_NONREC, // Non-Recoverable.
};
/* Bit[4..0] = Temp location */
enum smbios_temp_location {
SMBIOS_TEMP_LOCATION_OTHER = 0x01,
SMBIOS_TEMP_LOCATION_UNKNOWN,
SMBIOS_TEMP_LOCATION_PROCESSOR,
SMBIOS_TEMP_LOCATION_DISK,
SMBIOS_TEMP_LOCATION_BAY, // Peripheral Bay.
SMBIOS_TEMP_LOCATION_SMM, // System Management Module.
SMBIOS_TEMP_LOCATION_BOARD, // Motherboard.
SMBIOS_TEMP_LOCATION_MM, // Memory.
SMBIOS_TEMP_LOCATION_PM, // Processor Module.
SMBIOS_TEMP_LOCATION_POW, // Power Unit.
SMBIOS_TEMP_LOCATION_ADDCARD,
};
struct smbios_type28 {
struct smbios_header header;
u8 description;
u8 location_and_status;
u16 maximum_value;
u16 minimum_value;
u16 resolution;
u16 tolerance;
u16 accuracy;
u32 oem_defined;
u16 nominal_value;
u8 eos[2];
} __packed;
struct smbios_type32 {
struct smbios_header header;
u8 reserved[6];