1#- 2# Copyright (c) 2023 Juniper Networks, Inc. 3# All Rights Reserved 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# 27 28#include <sys/bus.h> 29#include <dev/tpm/tpm20.h> 30 31INTERFACE tpm; 32 33# 34# Transfer data to the TPM data buffer 35# 36METHOD int transmit { 37 device_t dev; 38 size_t length; 39}; 40 41 42METHOD uint64_t read_8 { 43 device_t dev; 44 bus_size_t addr; 45} 46 47# 48# Read 4 bytes (host endian) from a TPM register 49# 50METHOD uint32_t read_4 { 51 device_t dev; 52 bus_size_t addr; 53}; 54 55METHOD uint8_t read_1 { 56 device_t dev; 57 bus_size_t addr; 58}; 59 60METHOD void write_4 { 61 device_t dev; 62 bus_size_t addr; 63 uint32_t value; 64}; 65 66METHOD void write_1 { 67 device_t dev; 68 bus_size_t addr; 69 uint8_t value; 70}; 71 72METHOD void write_barrier { 73 device_t dev; 74 bus_size_t off; 75 bus_size_t length; 76} 77