acpi_status
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld)
{
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *output;
status = acpi_evaluate_object(handle, "_PLD", NULL, &buffer);
if (ACPI_FAILURE(status))
return status;
output = buffer.pointer;
if (!output || output->type != ACPI_TYPE_PACKAGE
|| !output->package.count
|| output->package.elements[0].type != ACPI_TYPE_BUFFER
|| output->package.elements[0].buffer.length < ACPI_PLD_REV1_BUFFER_SIZE) {
status = AE_TYPE;
goto out;
}
status = acpi_decode_pld_buffer(
output->package.elements[0].buffer.pointer,
output->package.elements[0].buffer.length,
pld);
out:
kfree(buffer.pointer);
return status;
}
void acpi_db_dump_pld_buffer(union acpi_object *obj_desc)
{
union acpi_object *buffer_desc;
struct acpi_pld_info *pld_info;
u8 *new_buffer;
acpi_status status;
/* Object must be of type Package with at least one Buffer element */
if (obj_desc->type != ACPI_TYPE_PACKAGE) {
return;
}
buffer_desc = &obj_desc->package.elements[0];
if (buffer_desc->type != ACPI_TYPE_BUFFER) {
return;
}
/* Convert _PLD buffer to local _PLD struct */
status = acpi_decode_pld_buffer(buffer_desc->buffer.pointer,
buffer_desc->buffer.length, &pld_info);
if (ACPI_FAILURE(status)) {
return;
}
/* Encode local _PLD struct back to a _PLD buffer */
new_buffer = acpi_db_encode_pld_buffer(pld_info);
if (!new_buffer) {
goto exit;
}
/* The two bit-packed buffers should match */
if (memcmp(new_buffer, buffer_desc->buffer.pointer,
buffer_desc->buffer.length)) {
acpi_os_printf
("Converted _PLD buffer does not compare. New:\n");
acpi_ut_dump_buffer(new_buffer,
buffer_desc->buffer.length, DB_BYTE_DISPLAY,
0);
}
/* First 32-bit dword */
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Revision", pld_info->revision);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_IgnoreColor",
pld_info->ignore_color);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Red", pld_info->red);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Green", pld_info->green);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Blue", pld_info->blue);
/* Second 32-bit dword */
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Width", pld_info->width);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Height", pld_info->height);
/* Third 32-bit dword */
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_UserVisible",
pld_info->user_visible);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Dock", pld_info->dock);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Lid", pld_info->lid);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Panel", pld_info->panel);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalPosition",
pld_info->vertical_position);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalPosition",
pld_info->horizontal_position);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Shape", pld_info->shape);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupOrientation",
pld_info->group_orientation);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupToken",
pld_info->group_token);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupPosition",
pld_info->group_position);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Bay", pld_info->bay);
/* Fourth 32-bit dword */
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Ejectable", pld_info->ejectable);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_EjectRequired",
pld_info->ospm_eject_required);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CabinetNumber",
pld_info->cabinet_number);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CardCageNumber",
pld_info->card_cage_number);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Reference", pld_info->reference);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Rotation", pld_info->rotation);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Order", pld_info->order);
/* Fifth 32-bit dword */
if (buffer_desc->buffer.length > 16) {
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalOffset",
pld_info->vertical_offset);
acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalOffset",
pld_info->horizontal_offset);
}
ACPI_FREE(new_buffer);
exit:
ACPI_FREE(pld_info);
}
