static int acpi_find_bmc(unsigned long *physaddr, int *port)
{
acpi_status status;
struct SPMITable *spmi;
status = acpi_get_firmware_table("SPMI", 1,
ACPI_LOGICAL_ADDRESSING,
(struct acpi_table_header **) &spmi);
if (status != AE_OK)
goto not_found;
if (spmi->InterfaceType[0] != 1)
/* Not IPMI. */
goto not_found;
if (spmi->InterfaceType[1] != 1)
/* Not KCS. */
goto not_found;
if (spmi->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
*physaddr = spmi->addr.address;
printk(KERN_DEBUG "ipmi_kcs_intf: Found ACPI-specified state machine"
" at memory address 0x%lx\n",
(unsigned long) spmi->addr.address);
} else if (spmi->addr.address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
*port = spmi->addr.address;
printk(KERN_DEBUG "ipmi_kcs_intf: Found ACPI-specified state machine"
" at I/O address 0x%x\n",
(int) spmi->addr.address);
} else
goto not_found; /* Not an address type we recognise. */
return 0;
not_found:
return -ENODEV;
}
acpi_status
acpi_tb_find_table(char *signature,
char *oem_id,
char *oem_table_id, struct acpi_table_header ** table_ptr)
{
acpi_status status;
struct acpi_table_header *table;
ACPI_FUNCTION_TRACE("tb_find_table");
/* Validate string lengths */
if ((ACPI_STRLEN(signature) > ACPI_NAME_SIZE) ||
(ACPI_STRLEN(oem_id) > sizeof(table->oem_id)) ||
(ACPI_STRLEN(oem_table_id) > sizeof(table->oem_table_id))) {
return_ACPI_STATUS(AE_AML_STRING_LIMIT);
}
if (!ACPI_STRNCMP(signature, DSDT_SIG, ACPI_NAME_SIZE)) {
/*
* The DSDT pointer is contained in the FADT, not the RSDT.
* This code should suffice, because the only code that would perform
* a "find" on the DSDT is the data_table_region() AML opcode -- in
* which case, the DSDT is guaranteed to be already loaded.
* If this becomes insufficient, the FADT will have to be found first.
*/
if (!acpi_gbl_DSDT) {
return_ACPI_STATUS(AE_NO_ACPI_TABLES);
}
table = acpi_gbl_DSDT;
} else {
/* Find the table */
status = acpi_get_firmware_table(signature, 1,
ACPI_LOGICAL_ADDRESSING,
&table);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/* Check oem_id and oem_table_id */
if ((oem_id[0] && ACPI_STRNCMP(oem_id, table->oem_id,
sizeof(table->oem_id))) ||
(oem_table_id[0] && ACPI_STRNCMP(oem_table_id, table->oem_table_id,
sizeof(table->oem_table_id)))) {
return_ACPI_STATUS(AE_AML_NAME_NOT_FOUND);
}
ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Found table [%4.4s]\n",
table->signature));
*table_ptr = table;
return_ACPI_STATUS(AE_OK);
}
__init u32 hrt_get_acpi_pm_ptr(void)
{
struct fadt_descriptor_rev2 *fadt = &acpi_fadt;
struct fadt_descriptor_rev2 local_fadt;
if (!fadt || !fadt->header.signature[0]) {
fadt = &local_fadt;
fadt->header.signature[0] = '\0';
acpi_get_firmware_table("FACP", 1, ACPI_PHYSICAL_POINTER,
(struct acpi_table_header **) & fadt);
}
if (!fadt || !fadt->header.signature[0]) {
printk("ACPI: Could not find the ACPI pm timer.");
}
if (fadt->header.revision == 2) {
return (u32) fadt->xpm_tmr_blk.address;
} else {
return (u32) fadt->V1_pm_tmr_blk;
}
}
acpi_status
acpi_tb_find_table (
char *signature,
char *oem_id,
char *oem_table_id,
struct acpi_table_header **table_ptr)
{
acpi_status status;
struct acpi_table_header *table;
ACPI_FUNCTION_TRACE ("tb_find_table");
/* Validate string lengths */
if ((ACPI_STRLEN (signature) > ACPI_NAME_SIZE) ||
(ACPI_STRLEN (oem_id) > sizeof (table->oem_id)) ||
(ACPI_STRLEN (oem_table_id) > sizeof (table->oem_table_id))) {
return_ACPI_STATUS (AE_AML_STRING_LIMIT);
}
/* Find the table */
status = acpi_get_firmware_table (signature, 1,
ACPI_LOGICAL_ADDRESSING, &table);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Check oem_id and oem_table_id */
if ((oem_id[0] && ACPI_STRCMP (oem_id, table->oem_id)) ||
(oem_table_id[0] && ACPI_STRCMP (oem_table_id, table->oem_table_id))) {
return_ACPI_STATUS (AE_AML_NAME_NOT_FOUND);
}
*table_ptr = table;
return_ACPI_STATUS (AE_OK);
}
