d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix ACPI table override. Since ACPI CA 20090123, any ACPI table can be

Browse Source 
overriden, not just DSDT.  However, we do not support this feature yet.
This commit is contained in:
Jung-uk Kim 2009-06-04 20:53:26 +00:00
parent 92ebb4adfe
commit 451d1f8de6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/acpica_20090521/; revision=193454
1 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
sys/dev/acpica/Osd/OsdTable.c
View File

@ -67,17 +67,30 @@ ACPI_STATUS
AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
caddr_t acpi_dsdt, p;
char modname[] = "acpi_dsdt";
caddr_t acpi_table, p, s;
if (ExistingTable == NULL || NewTable == NULL)
return (AE_BAD_PARAMETER);
#ifdef notyet
for (int i = 0; i < ACPI_NAME_SIZE; i++)
modname[i + 5] = tolower(ExistingTable->Signature[i]);
#else
/* If we're not overriding the DSDT, just return. */
if ((acpi_dsdt = preload_search_by_type("acpi_dsdt")) == NULL ||
(p = preload_search_info(acpi_dsdt, MODINFO_ADDR)) == NULL) {
if (strncmp(ExistingTable->Signature, "DSDT", ACPI_NAME_SIZE) != 0) {
*NewTable = NULL;
} else
return (AE_OK);
}
#endif
if ((acpi_table = preload_search_by_type(modname)) != NULL &&
(p = preload_search_info(acpi_table, MODINFO_ADDR)) != NULL &&
(s = preload_search_info(acpi_table, MODINFO_SIZE)) != NULL &&
*(size_t *)s != 0)
*NewTable = *(ACPI_TABLE_HEADER **)p;
else
*NewTable = NULL;
return (AE_OK);
}