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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
303 lines
7.8 KiB
C
303 lines
7.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
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*
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* Adapted from coreboot src/arch/x86/smbios.c
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*/
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#include <common.h>
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#include <smbios.h>
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#include <tables_csum.h>
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#include <version.h>
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#ifdef CONFIG_CPU
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#include <cpu.h>
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#include <dm.h>
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#include <dm/uclass-internal.h>
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#endif
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/**
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* smbios_add_string() - add a string to the string area
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*
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* This adds a string to the string area which is appended directly after
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* the formatted portion of an SMBIOS structure.
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*
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* @start: string area start address
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* @str: string to add
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* @return: string number in the string area
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*/
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static int smbios_add_string(char *start, const char *str)
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{
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int i = 1;
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char *p = start;
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for (;;) {
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if (!*p) {
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strcpy(p, str);
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p += strlen(str);
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*p++ = '\0';
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*p++ = '\0';
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return i;
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}
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if (!strcmp(p, str))
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return i;
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p += strlen(p) + 1;
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i++;
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}
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}
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/**
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* smbios_string_table_len() - compute the string area size
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*
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* This computes the size of the string area including the string terminator.
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*
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* @start: string area start address
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* @return: string area size
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*/
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static int smbios_string_table_len(char *start)
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{
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char *p = start;
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int i, len = 0;
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while (*p) {
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i = strlen(p) + 1;
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p += i;
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len += i;
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}
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return len + 1;
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}
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static int smbios_write_type0(ulong *current, int handle)
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{
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struct smbios_type0 *t = (struct smbios_type0 *)*current;
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int len = sizeof(struct smbios_type0);
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memset(t, 0, sizeof(struct smbios_type0));
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fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
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t->vendor = smbios_add_string(t->eos, "U-Boot");
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t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION);
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t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE);
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#ifdef CONFIG_ROM_SIZE
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t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
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#endif
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t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED |
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BIOS_CHARACTERISTICS_SELECTABLE_BOOT |
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BIOS_CHARACTERISTICS_UPGRADEABLE;
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#ifdef CONFIG_GENERATE_ACPI_TABLE
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t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
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#endif
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#ifdef CONFIG_EFI_LOADER
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t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI;
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#endif
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t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;
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t->bios_major_release = 0xff;
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t->bios_minor_release = 0xff;
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t->ec_major_release = 0xff;
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t->ec_minor_release = 0xff;
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len = t->length + smbios_string_table_len(t->eos);
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*current += len;
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return len;
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}
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static int smbios_write_type1(ulong *current, int handle)
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{
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struct smbios_type1 *t = (struct smbios_type1 *)*current;
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int len = sizeof(struct smbios_type1);
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char *serial_str = env_get("serial#");
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memset(t, 0, sizeof(struct smbios_type1));
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fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
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t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
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if (serial_str) {
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strncpy((char*)t->uuid, serial_str, sizeof(t->uuid));
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t->serial_number = smbios_add_string(t->eos, serial_str);
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}
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len = t->length + smbios_string_table_len(t->eos);
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*current += len;
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return len;
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}
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static int smbios_write_type2(ulong *current, int handle)
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{
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struct smbios_type2 *t = (struct smbios_type2 *)*current;
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int len = sizeof(struct smbios_type2);
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memset(t, 0, sizeof(struct smbios_type2));
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fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
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t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
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t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
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t->board_type = SMBIOS_BOARD_MOTHERBOARD;
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len = t->length + smbios_string_table_len(t->eos);
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*current += len;
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return len;
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}
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static int smbios_write_type3(ulong *current, int handle)
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{
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struct smbios_type3 *t = (struct smbios_type3 *)*current;
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int len = sizeof(struct smbios_type3);
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memset(t, 0, sizeof(struct smbios_type3));
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fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
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t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
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t->bootup_state = SMBIOS_STATE_SAFE;
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t->power_supply_state = SMBIOS_STATE_SAFE;
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t->thermal_state = SMBIOS_STATE_SAFE;
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t->security_status = SMBIOS_SECURITY_NONE;
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len = t->length + smbios_string_table_len(t->eos);
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*current += len;
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return len;
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}
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static void smbios_write_type4_dm(struct smbios_type4 *t)
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{
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u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN;
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const char *vendor = "Unknown";
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const char *name = "Unknown";
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#ifdef CONFIG_CPU
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char processor_name[49];
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char vendor_name[49];
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struct udevice *dev = NULL;
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uclass_find_first_device(UCLASS_CPU, &dev);
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if (dev) {
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struct cpu_platdata *plat = dev_get_parent_platdata(dev);
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if (plat->family)
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processor_family = plat->family;
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t->processor_id[0] = plat->id[0];
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t->processor_id[1] = plat->id[1];
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if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name)))
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vendor = vendor_name;
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if (!cpu_get_desc(dev, processor_name, sizeof(processor_name)))
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name = processor_name;
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}
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#endif
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t->processor_family = processor_family;
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t->processor_manufacturer = smbios_add_string(t->eos, vendor);
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t->processor_version = smbios_add_string(t->eos, name);
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}
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static int smbios_write_type4(ulong *current, int handle)
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{
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struct smbios_type4 *t = (struct smbios_type4 *)*current;
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int len = sizeof(struct smbios_type4);
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memset(t, 0, sizeof(struct smbios_type4));
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fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
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t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
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smbios_write_type4_dm(t);
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t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
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t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
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t->l1_cache_handle = 0xffff;
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t->l2_cache_handle = 0xffff;
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t->l3_cache_handle = 0xffff;
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t->processor_family2 = t->processor_family;
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len = t->length + smbios_string_table_len(t->eos);
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*current += len;
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return len;
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}
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static int smbios_write_type32(ulong *current, int handle)
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{
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struct smbios_type32 *t = (struct smbios_type32 *)*current;
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int len = sizeof(struct smbios_type32);
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memset(t, 0, sizeof(struct smbios_type32));
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fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
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*current += len;
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return len;
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}
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static int smbios_write_type127(ulong *current, int handle)
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{
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struct smbios_type127 *t = (struct smbios_type127 *)*current;
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int len = sizeof(struct smbios_type127);
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memset(t, 0, sizeof(struct smbios_type127));
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fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);
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*current += len;
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return len;
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}
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static smbios_write_type smbios_write_funcs[] = {
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smbios_write_type0,
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smbios_write_type1,
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smbios_write_type2,
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smbios_write_type3,
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smbios_write_type4,
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smbios_write_type32,
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smbios_write_type127
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};
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ulong write_smbios_table(ulong addr)
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{
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struct smbios_entry *se;
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ulong tables;
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int len = 0;
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int max_struct_size = 0;
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int handle = 0;
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char *istart;
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int isize;
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int i;
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/* 16 byte align the table address */
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addr = ALIGN(addr, 16);
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se = (struct smbios_entry *)(uintptr_t)addr;
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memset(se, 0, sizeof(struct smbios_entry));
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addr += sizeof(struct smbios_entry);
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addr = ALIGN(addr, 16);
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tables = addr;
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/* populate minimum required tables */
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for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
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int tmp = smbios_write_funcs[i]((ulong *)&addr, handle++);
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max_struct_size = max(max_struct_size, tmp);
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len += tmp;
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}
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memcpy(se->anchor, "_SM_", 4);
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se->length = sizeof(struct smbios_entry);
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se->major_ver = SMBIOS_MAJOR_VER;
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se->minor_ver = SMBIOS_MINOR_VER;
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se->max_struct_size = max_struct_size;
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memcpy(se->intermediate_anchor, "_DMI_", 5);
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se->struct_table_length = len;
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se->struct_table_address = tables;
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se->struct_count = handle;
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/* calculate checksums */
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istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
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isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
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se->intermediate_checksum = table_compute_checksum(istart, isize);
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se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
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return addr;
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}
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