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); }