[J-u-boot.git] / lib / smbios.c

/*
 * Copyright (C) 2015, Bin Meng <[email protected]>
 *
 * Adapted from coreboot src/arch/x86/smbios.c
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <smbios.h>
#include <tables_csum.h>
#include <version.h>
#ifdef CONFIG_CPU
#include <cpu.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

/**
 * smbios_add_string() - add a string to the string area
 *
 * This adds a string to the string area which is appended directly after
 * the formatted portion of an SMBIOS structure.
 *
 * @start:	string area start address
 * @str:	string to add
 * @return:	string number in the string area
 */
static int smbios_add_string(char *start, const char *str)
{
	int i = 1;
	char *p = start;

	for (;;) {
		if (!*p) {
			strcpy(p, str);
			p += strlen(str);
			*p++ = '\0';
			*p++ = '\0';

			return i;
		}

		if (!strcmp(p, str))
			return i;

		p += strlen(p) + 1;
		i++;
	}
}

/**
 * smbios_string_table_len() - compute the string area size
 *
 * This computes the size of the string area including the string terminator.
 *
 * @start:	string area start address
 * @return:	string area size
 */
static int smbios_string_table_len(char *start)
{
	char *p = start;
	int i, len = 0;

	while (*p) {
		i = strlen(p) + 1;
		p += i;
		len += i;
	}

	return len + 1;
}

static int smbios_write_type0(uintptr_t *current, int handle)
{
	struct smbios_type0 *t = (struct smbios_type0 *)*current;
	int len = sizeof(struct smbios_type0);

	memset(t, 0, sizeof(struct smbios_type0));
	fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
	t->vendor = smbios_add_string(t->eos, "U-Boot");
	t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION);
	t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE);
#ifdef CONFIG_ROM_SIZE
	t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
#endif
	t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED |
				  BIOS_CHARACTERISTICS_SELECTABLE_BOOT |
				  BIOS_CHARACTERISTICS_UPGRADEABLE;
#ifdef CONFIG_GENERATE_ACPI_TABLE
	t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
#endif
#ifdef CONFIG_EFI_LOADER
	t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI;
#endif
	t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;

	t->bios_major_release = 0xff;
	t->bios_minor_release = 0xff;
	t->ec_major_release = 0xff;
	t->ec_minor_release = 0xff;

	len = t->length + smbios_string_table_len(t->eos);
	*current += len;

	return len;
}

static int smbios_write_type1(uintptr_t *current, int handle)
{
	struct smbios_type1 *t = (struct smbios_type1 *)*current;
	int len = sizeof(struct smbios_type1);

	memset(t, 0, sizeof(struct smbios_type1));
	fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
	t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);

	len = t->length + smbios_string_table_len(t->eos);
	*current += len;

	return len;
}

static int smbios_write_type2(uintptr_t *current, int handle)
{
	struct smbios_type2 *t = (struct smbios_type2 *)*current;
	int len = sizeof(struct smbios_type2);

	memset(t, 0, sizeof(struct smbios_type2));
	fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
	t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
	t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
	t->board_type = SMBIOS_BOARD_MOTHERBOARD;

	len = t->length + smbios_string_table_len(t->eos);
	*current += len;

	return len;
}

static int smbios_write_type3(uintptr_t *current, int handle)
{
	struct smbios_type3 *t = (struct smbios_type3 *)*current;
	int len = sizeof(struct smbios_type3);

	memset(t, 0, sizeof(struct smbios_type3));
	fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
	t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
	t->bootup_state = SMBIOS_STATE_SAFE;
	t->power_supply_state = SMBIOS_STATE_SAFE;
	t->thermal_state = SMBIOS_STATE_SAFE;
	t->security_status = SMBIOS_SECURITY_NONE;

	len = t->length + smbios_string_table_len(t->eos);
	*current += len;

	return len;
}

static void smbios_write_type4_dm(struct smbios_type4 *t)
{
	u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN;
	const char *vendor = "Unknown";
	const char *name = "Unknown";

#ifdef CONFIG_CPU
	char processor_name[49];
	char vendor_name[49];
	struct udevice *dev = NULL;

	uclass_find_first_device(UCLASS_CPU, &dev);
	if (dev) {
		struct cpu_platdata *plat = dev_get_parent_platdata(dev);

		if (plat->family)
			processor_family = plat->family;
		t->processor_id[0] = plat->id[0];
		t->processor_id[1] = plat->id[1];

		if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name)))
			vendor = vendor_name;
		if (!cpu_get_desc(dev, processor_name, sizeof(processor_name)))
			name = processor_name;
	}
#endif

	t->processor_family = processor_family;
	t->processor_manufacturer = smbios_add_string(t->eos, vendor);
	t->processor_version = smbios_add_string(t->eos, name);
}

static int smbios_write_type4(uintptr_t *current, int handle)
{
	struct smbios_type4 *t = (struct smbios_type4 *)*current;
	int len = sizeof(struct smbios_type4);

	memset(t, 0, sizeof(struct smbios_type4));
	fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
	t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
	smbios_write_type4_dm(t);
	t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
	t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
	t->l1_cache_handle = 0xffff;
	t->l2_cache_handle = 0xffff;
	t->l3_cache_handle = 0xffff;
	t->processor_family2 = t->processor_family;

	len = t->length + smbios_string_table_len(t->eos);
	*current += len;

	return len;
}

static int smbios_write_type32(uintptr_t *current, int handle)
{
	struct smbios_type32 *t = (struct smbios_type32 *)*current;
	int len = sizeof(struct smbios_type32);

	memset(t, 0, sizeof(struct smbios_type32));
	fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);

	*current += len;

	return len;
}

static int smbios_write_type127(uintptr_t *current, int handle)
{
	struct smbios_type127 *t = (struct smbios_type127 *)*current;
	int len = sizeof(struct smbios_type127);

	memset(t, 0, sizeof(struct smbios_type127));
	fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);

	*current += len;

	return len;
}

static smbios_write_type smbios_write_funcs[] = {
	smbios_write_type0,
	smbios_write_type1,
	smbios_write_type2,
	smbios_write_type3,
	smbios_write_type4,
	smbios_write_type32,
	smbios_write_type127
};

uintptr_t write_smbios_table(uintptr_t addr)
{
	struct smbios_entry *se;
	u32 tables;
	int len = 0;
	int max_struct_size = 0;
	int handle = 0;
	char *istart;
	int isize;
	int i;

	/* 16 byte align the table address */
	addr = ALIGN(addr, 16);

	se = (struct smbios_entry *)addr;
	memset(se, 0, sizeof(struct smbios_entry));

	addr += sizeof(struct smbios_entry);
	addr = ALIGN(addr, 16);
	tables = addr;

	/* populate minimum required tables */
	for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
		int tmp = smbios_write_funcs[i](&addr, handle++);
		max_struct_size = max(max_struct_size, tmp);
		len += tmp;
	}

	memcpy(se->anchor, "_SM_", 4);
	se->length = sizeof(struct smbios_entry);
	se->major_ver = SMBIOS_MAJOR_VER;
	se->minor_ver = SMBIOS_MINOR_VER;
	se->max_struct_size = max_struct_size;
	memcpy(se->intermediate_anchor, "_DMI_", 5);
	se->struct_table_length = len;
	se->struct_table_address = tables;
	se->struct_count = handle;

	/* calculate checksums */
	istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
	isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
	se->intermediate_checksum = table_compute_checksum(istart, isize);
	se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));

	return addr;
}
Commit	Line	Data
721e992a BM	1	/*
	2	* Copyright (C) 2015, Bin Meng <[email protected]>
	3	*
	4	* Adapted from coreboot src/arch/x86/smbios.c
	5	*
	6	* SPDX-License-Identifier: GPL-2.0+
	7	*/
	8
	9	#include <common.h>
4b6dddc2 AG	10	#include <smbios.h>
4b6dddc2 AG	11	#include <tables_csum.h>
721e992a	12	#include <version.h>
96476206 AG	13	#ifdef CONFIG_CPU
	14	#include <cpu.h>
	15	#include <dm.h>
	16	#include <dm/uclass-internal.h>
	17	#endif
721e992a BM	18
	19	DECLARE_GLOBAL_DATA_PTR;
	20
	21	/**
	22	* smbios_add_string() - add a string to the string area
	23	*
	24	* This adds a string to the string area which is appended directly after
	25	* the formatted portion of an SMBIOS structure.
	26	*
	27	* @start: string area start address
	28	* @str: string to add
	29	* @return: string number in the string area
	30	*/
	31	static int smbios_add_string(char start, const char str)
	32	{
	33	int i = 1;
	34	char *p = start;
	35
	36	for (;;) {
	37	if (!*p) {
	38	strcpy(p, str);
	39	p += strlen(str);
	40	*p++ = '\0';
	41	*p++ = '\0';
	42
	43	return i;
	44	}
	45
	46	if (!strcmp(p, str))
	47	return i;
	48
	49	p += strlen(p) + 1;
	50	i++;
	51	}
	52	}
	53
	54	/**
	55	* smbios_string_table_len() - compute the string area size
	56	*
	57	* This computes the size of the string area including the string terminator.
	58	*
	59	* @start: string area start address
	60	* @return: string area size
	61	*/
	62	static int smbios_string_table_len(char *start)
	63	{
	64	char *p = start;
	65	int i, len = 0;
	66
	67	while (*p) {
	68	i = strlen(p) + 1;
	69	p += i;
	70	len += i;
	71	}
	72
	73	return len + 1;
	74	}
	75
e824cf3f	76	static int smbios_write_type0(uintptr_t *current, int handle)
721e992a BM	77	{
	78	struct smbios_type0 t = (struct smbios_type0 )*current;
	79	int len = sizeof(struct smbios_type0);
	80
	81	memset(t, 0, sizeof(struct smbios_type0));
	82	fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
	83	t->vendor = smbios_add_string(t->eos, "U-Boot");
	84	t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION);
	85	t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE);
e663b350	86	#ifdef CONFIG_ROM_SIZE
721e992a	87	t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
e663b350	88	#endif
721e992a BM	89	t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED \|
	90	BIOS_CHARACTERISTICS_SELECTABLE_BOOT \|
	91	BIOS_CHARACTERISTICS_UPGRADEABLE;
	92	#ifdef CONFIG_GENERATE_ACPI_TABLE
	93	t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
e663b350 AG	94	#endif
	95	#ifdef CONFIG_EFI_LOADER
	96	t->bios_characteristics_ext1 \|= BIOS_CHARACTERISTICS_EXT1_UEFI;
721e992a BM	97	#endif
721e992a BM	98	t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;
e663b350	99
721e992a BM	100	t->bios_major_release = 0xff;
	101	t->bios_minor_release = 0xff;
	102	t->ec_major_release = 0xff;
	103	t->ec_minor_release = 0xff;
	104
	105	len = t->length + smbios_string_table_len(t->eos);
	106	*current += len;
	107
	108	return len;
	109	}
	110
e824cf3f	111	static int smbios_write_type1(uintptr_t *current, int handle)
721e992a BM	112	{
	113	struct smbios_type1 t = (struct smbios_type1 )*current;
	114	int len = sizeof(struct smbios_type1);
	115
	116	memset(t, 0, sizeof(struct smbios_type1));
	117	fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
4cdce9f5 BM	118	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
4cdce9f5 BM	119	t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
721e992a BM	120
	121	len = t->length + smbios_string_table_len(t->eos);
	122	*current += len;
	123
	124	return len;
	125	}
	126
e824cf3f	127	static int smbios_write_type2(uintptr_t *current, int handle)
721e992a BM	128	{
	129	struct smbios_type2 t = (struct smbios_type2 )*current;
	130	int len = sizeof(struct smbios_type2);
	131
	132	memset(t, 0, sizeof(struct smbios_type2));
	133	fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
4cdce9f5 BM	134	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
4cdce9f5 BM	135	t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
721e992a BM	136	t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
	137	t->board_type = SMBIOS_BOARD_MOTHERBOARD;
	138
	139	len = t->length + smbios_string_table_len(t->eos);
	140	*current += len;
	141
	142	return len;
	143	}
	144
e824cf3f	145	static int smbios_write_type3(uintptr_t *current, int handle)
721e992a BM	146	{
	147	struct smbios_type3 t = (struct smbios_type3 )*current;
	148	int len = sizeof(struct smbios_type3);
	149
	150	memset(t, 0, sizeof(struct smbios_type3));
	151	fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
4cdce9f5	152	t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
721e992a BM	153	t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
	154	t->bootup_state = SMBIOS_STATE_SAFE;
	155	t->power_supply_state = SMBIOS_STATE_SAFE;
	156	t->thermal_state = SMBIOS_STATE_SAFE;
	157	t->security_status = SMBIOS_SECURITY_NONE;
	158
	159	len = t->length + smbios_string_table_len(t->eos);
	160	*current += len;
	161
	162	return len;
	163	}
	164
96476206 AG	165	static void smbios_write_type4_dm(struct smbios_type4 *t)
	166	{
	167	u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN;
	168	const char *vendor = "Unknown";
	169	const char *name = "Unknown";
	170
	171	#ifdef CONFIG_CPU
	172	char processor_name[49];
	173	char vendor_name[49];
	174	struct udevice *dev = NULL;
	175
	176	uclass_find_first_device(UCLASS_CPU, &dev);
	177	if (dev) {
	178	struct cpu_platdata *plat = dev_get_parent_platdata(dev);
	179
	180	if (plat->family)
	181	processor_family = plat->family;
	182	t->processor_id[0] = plat->id[0];
	183	t->processor_id[1] = plat->id[1];
	184
	185	if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name)))
	186	vendor = vendor_name;
	187	if (!cpu_get_desc(dev, processor_name, sizeof(processor_name)))
	188	name = processor_name;
	189	}
	190	#endif
	191
	192	t->processor_family = processor_family;
	193	t->processor_manufacturer = smbios_add_string(t->eos, vendor);
	194	t->processor_version = smbios_add_string(t->eos, name);
	195	}
	196
e824cf3f	197	static int smbios_write_type4(uintptr_t *current, int handle)
721e992a BM	198	{
	199	struct smbios_type4 t = (struct smbios_type4 )*current;
	200	int len = sizeof(struct smbios_type4);
721e992a BM	201
	202	memset(t, 0, sizeof(struct smbios_type4));
	203	fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
	204	t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
96476206	205	smbios_write_type4_dm(t);
721e992a BM	206	t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
	207	t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
	208	t->l1_cache_handle = 0xffff;
	209	t->l2_cache_handle = 0xffff;
	210	t->l3_cache_handle = 0xffff;
	211	t->processor_family2 = t->processor_family;
	212
	213	len = t->length + smbios_string_table_len(t->eos);
	214	*current += len;
	215
	216	return len;
	217	}
	218
e824cf3f	219	static int smbios_write_type32(uintptr_t *current, int handle)
721e992a BM	220	{
	221	struct smbios_type32 t = (struct smbios_type32 )*current;
	222	int len = sizeof(struct smbios_type32);
	223
	224	memset(t, 0, sizeof(struct smbios_type32));
	225	fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
	226
	227	*current += len;
	228
	229	return len;
	230	}
	231
e824cf3f	232	static int smbios_write_type127(uintptr_t *current, int handle)
721e992a BM	233	{
	234	struct smbios_type127 t = (struct smbios_type127 )*current;
	235	int len = sizeof(struct smbios_type127);
	236
	237	memset(t, 0, sizeof(struct smbios_type127));
	238	fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);
	239
	240	*current += len;
	241
	242	return len;
	243	}
	244
	245	static smbios_write_type smbios_write_funcs[] = {
	246	smbios_write_type0,
	247	smbios_write_type1,
	248	smbios_write_type2,
	249	smbios_write_type3,
	250	smbios_write_type4,
	251	smbios_write_type32,
	252	smbios_write_type127
	253	};
	254
e824cf3f	255	uintptr_t write_smbios_table(uintptr_t addr)
721e992a BM	256	{
	257	struct smbios_entry *se;
	258	u32 tables;
	259	int len = 0;
	260	int max_struct_size = 0;
	261	int handle = 0;
	262	char *istart;
	263	int isize;
	264	int i;
	265
	266	/* 16 byte align the table address */
	267	addr = ALIGN(addr, 16);
	268
	269	se = (struct smbios_entry *)addr;
	270	memset(se, 0, sizeof(struct smbios_entry));
	271
	272	addr += sizeof(struct smbios_entry);
	273	addr = ALIGN(addr, 16);
	274	tables = addr;
	275
	276	/* populate minimum required tables */
	277	for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
	278	int tmp = smbios_write_funcs[i](&addr, handle++);
	279	max_struct_size = max(max_struct_size, tmp);
	280	len += tmp;
	281	}
	282
	283	memcpy(se->anchor, "_SM_", 4);
	284	se->length = sizeof(struct smbios_entry);
	285	se->major_ver = SMBIOS_MAJOR_VER;
	286	se->minor_ver = SMBIOS_MINOR_VER;
	287	se->max_struct_size = max_struct_size;
	288	memcpy(se->intermediate_anchor, "_DMI_", 5);
	289	se->struct_table_length = len;
	290	se->struct_table_address = tables;
	291	se->struct_count = handle;
	292
	293	/* calculate checksums */
	294	istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
	295	isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
	296	se->intermediate_checksum = table_compute_checksum(istart, isize);
	297	se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
	298
	299	return addr;
	300	}