ACPI_STATUS
AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable,
ACPI_TABLE_HEADER **NewTable)
{
char modname[] = "acpi_dsdt";
caddr_t acpi_table;
ACPI_TABLE_HEADER *hdr;
size_t sz;
if (ExistingTable == NULL || NewTable == NULL)
return (AE_BAD_PARAMETER);
*NewTable = NULL;
if (!ACPI_COMPARE_NAME(ExistingTable->Signature, ACPI_SIG_DSDT))
#ifdef notyet
for (int i = 0; i < ACPI_NAME_SIZE; i++)
modname[i + 5] = tolower(ExistingTable->Signature[i]);
#else
return (AE_SUPPORT);
#endif
acpi_table = preload_search_by_type(modname);
if (acpi_table == NULL)
return (AE_NOT_FOUND);
hdr = preload_fetch_addr(acpi_table);
sz = preload_fetch_size(acpi_table);
if (hdr == NULL || sz == 0)
return (AE_ERROR);
#ifndef notyet
/* Assume SSDT is installed with DSDT. */
AcpiGbl_DisableSsdtTableInstall = TRUE;
#endif
*NewTable = hdr;
return (AE_OK);
}
static int
splash_find_data(splash_decoder_t *decoder)
{
caddr_t image_module;
void *ptr;
size_t sz;
if (decoder->data_type == NULL)
return (0);
image_module = preload_search_by_type(decoder->data_type);
if (image_module == NULL)
return (ENOENT);
ptr = preload_fetch_addr(image_module);
sz = preload_fetch_size(image_module);
if (ptr == NULL || sz == 0)
return (ENOENT);
if (bootverbose)
printf("splash: image@%p, size:%zu\n", ptr, sz);
decoder->data = ptr;
decoder->data_size = sz;
return (0);
}
int
kobj_read_file_loader(struct _buf *file, char *buf, unsigned size, unsigned off)
{
char *ptr;
ptr = preload_fetch_addr(file->ptr);
if (ptr == NULL)
return (ENOENT);
bcopy(ptr + off, buf, size);
return (0);
}