third_party/tinyusb/tinyusb.BUILD.bazel

# Copyright 2025 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

# This is a BUILD.bazel file template for TinyUSB.
#
# TODO(b/422199556): Contribute this to upstream TinyUSB.

# buildifier: disable=module-docstring
package(default_visibility = ["//visibility:public"])

# Label flag that points to the cc_library target providing tusb_config.h
label_flag(
    name = "tinyusb_config",
    build_setting_default = ":default_tinyusb_config",
)

# Label flag that points to the cc_library target providing descriptors
label_flag(
    name = "tinyusb_descriptors",
    build_setting_default = "@rules_cc//:empty_lib",
)

# Label flag that points to the cc_library target providing port-layer sources
label_flag(
    name = "tinyusb_third_party_port",
    build_setting_default = "@rules_cc//:empty_lib",
)

# Label flag that points to the cc_library target providing port-layer headers
label_flag(
    name = "tinyusb_third_party_port_headers",
    build_setting_default = "@rules_cc//:empty_lib",
)

cc_library(
    name = "default_tinyusb_config",
    target_compatible_with = ["@platforms//:incompatible"],
)

constraint_setting(
    name = "port",
)

constraint_value(
    name = "port_synopsys_stm32",
    constraint_setting = ":port",
)

constraint_value(
    name = "port_third_party",
    constraint_setting = ":port",
)

# Main TinyUSB library
cc_library(
    name = "tinyusb",
    srcs = [
        "src/common/tusb_fifo.c",
        "src/tusb.c",
    ],
    hdrs = [
        "src/tusb.h",
    ],
    strip_include_prefix = "src",
    deps = [
        ":device_class_headers",
        ":device_headers",
        ":osal",
        ":tinyusb_config",
        ":tinyusb_headers",
        ":tinyusb_port",
        ":tinyusb_port_headers",
    ],
)

cc_library(
    name = "tinyusb_headers",
    hdrs = [
        "src/common/tusb_common.h",
        "src/common/tusb_compiler.h",
        "src/common/tusb_debug.h",
        "src/common/tusb_fifo.h",
        "src/common/tusb_mcu.h",
        "src/common/tusb_private.h",
        "src/common/tusb_types.h",
        "src/common/tusb_verify.h",
        "src/tusb.h",
        "src/tusb_option.h",
    ],
    strip_include_prefix = "src",
    deps = [
        ":device_class_headers",
        ":device_headers",
        ":tinyusb_port_headers",
    ],
)

# Port implementations
cc_library(
    name = "tinyusb_port",
    deps = select({
        ":port_synopsys_stm32": [":synopsys_stm32_port"],
        ":port_third_party": [":tinyusb_third_party_port"],
        "//conditions:default": [],
    }),
)

cc_library(
    name = "synopsys_stm32_port",
    srcs = [
        "src/portable/synopsys/dwc2/dcd_dwc2.c",
        "src/portable/synopsys/dwc2/dwc2_common.c",
        "src/portable/synopsys/dwc2/hcd_dwc2.c",
    ],
    hdrs = [
        "src/portable/synopsys/dwc2/dwc2_common.h",
        "src/portable/synopsys/dwc2/dwc2_stm32.h",
        "src/portable/synopsys/dwc2/dwc2_type.h",
    ],
    strip_include_prefix = "src",
    visibility = ["//visibility:private"],
    deps = [
        ":device_headers",
        ":tinyusb_config",
        ":tinyusb_headers",
        "@pigweed//third_party/stm32cube",
    ],
)

# Port headers
cc_library(
    name = "tinyusb_port_headers",
    deps = select({
        ":port_synopsys_stm32": [":synopsys_stm32_port_headers"],
        ":port_third_party": [":tinyusb_third_party_port_headers"],
        "//conditions:default": [],
    }),
)

cc_library(
    name = "synopsys_stm32_port_headers",
    hdrs = [
        "src/portable/synopsys/dwc2/dwc2_type.h",
    ],
    strip_include_prefix = "src",
    visibility = ["//visibility:private"],
)

# OSAL implementation
cc_library(
    name = "osal",
    hdrs = [
        "src/osal/osal.h",
    ] + select({
        "@pigweed//pw_build/constraints/rtos:freertos": [
            "src/osal/osal_freertos.h",
        ],
        "//conditions:default": [
            "src/osal/osal_none.h",
        ],
    }),
    strip_include_prefix = "src",
    visibility = ["//visibility:private"],
    deps = select({
        "@pigweed//pw_build/constraints/rtos:freertos": [
            "@freertos",
        ],
        "//conditions:default": [],
    }),
)

# Device libraries
cc_library(
    name = "device",
    srcs = [
        "src/device/usbd.c",
        "src/device/usbd_control.c",
    ],
    hdrs = [
        "src/device/dcd.h",
        "src/device/usbd.h",
        "src/device/usbd_pvt.h",
    ],
    strip_include_prefix = "src",
    visibility = ["//visibility:public"],
    deps = [
        ":osal",
        ":tinyusb_config",
        ":tinyusb_descriptors",
        ":tinyusb_headers",
        ":tinyusb_port",
    ],
)

cc_library(
    name = "device_headers",
    hdrs = [
        "src/device/dcd.h",
        "src/device/usbd.h",
        "src/device/usbd_pvt.h",
    ],
    strip_include_prefix = "src",
    visibility = ["//visibility:private"],
    deps = [
        ":osal",
    ],
)

cc_library(
    name = "device_class_headers",
    hdrs = [
        "src/class/audio/audio.h",
        "src/class/audio/audio_device.h",
        "src/class/cdc/cdc.h",
        "src/class/cdc/cdc_device.h",
        "src/class/dfu/dfu.h",
        "src/class/dfu/dfu_device.h",
        "src/class/hid/hid.h",
        "src/class/hid/hid_device.h",
        "src/class/midi/midi.h",
        "src/class/midi/midi_device.h",
        "src/class/msc/msc.h",
        "src/class/msc/msc_device.h",
        "src/class/usbtmc/usbtmc.h",
        "src/class/usbtmc/usbtmc_device.h",
        "src/class/vendor/vendor_device.h",
        "src/class/video/video.h",
        "src/class/video/video_device.h",
        "src/common/tusb_common.h",
        "src/common/tusb_compiler.h",
        "src/common/tusb_debug.h",
        "src/common/tusb_fifo.h",
        "src/common/tusb_mcu.h",
        "src/common/tusb_private.h",
        "src/common/tusb_types.h",
        "src/common/tusb_verify.h",
        "src/tusb.h",
        "src/tusb_option.h",
    ],
    strip_include_prefix = "src",
    visibility = ["//visibility:private"],
    deps = [":tinyusb_config"],
)

cc_library(
    name = "device_audio",
    srcs = ["src/class/audio/audio_device.c"],
    hdrs = [
        "src/class/audio/audio.h",
        "src/class/audio/audio_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_cdc",
    srcs = ["src/class/cdc/cdc_device.c"],
    hdrs = [
        "src/class/cdc/cdc.h",
        "src/class/cdc/cdc_device.h",
        "src/class/cdc/cdc_rndis.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_dfu",
    srcs = [
        "src/class/dfu/dfu_device.c",
        "src/class/dfu/dfu_rt_device.c",
    ],
    hdrs = [
        "src/class/dfu/dfu.h",
        "src/class/dfu/dfu_device.h",
        "src/class/dfu/dfu_rt_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_hid",
    srcs = ["src/class/hid/hid_device.c"],
    hdrs = [
        "src/class/hid/hid.h",
        "src/class/hid/hid_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_midi",
    srcs = ["src/class/midi/midi_device.c"],
    hdrs = [
        "src/class/midi/midi.h",
        "src/class/midi/midi_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_msc",
    srcs = ["src/class/msc/msc_device.c"],
    hdrs = [
        "src/class/msc/msc.h",
        "src/class/msc/msc_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_usbtmc",
    srcs = ["src/class/usbtmc/usbtmc_device.c"],
    hdrs = [
        "src/class/usbtmc/usbtmc.h",
        "src/class/usbtmc/usbtmc_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_vendor",
    srcs = ["src/class/vendor/vendor_device.c"],
    hdrs = ["src/class/vendor/vendor_device.h"],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

cc_library(
    name = "device_video",
    srcs = ["src/class/video/video_device.c"],
    hdrs = [
        "src/class/video/video.h",
        "src/class/video/video_device.h",
    ],
    strip_include_prefix = "src",
    deps = [":device"],
    alwayslink = 1,
)

# Host libraries
cc_library(
    name = "host",
    srcs = [
        "src/host/hub.c",
        "src/host/usbh.c",
        "src/host/usbh_control.c",
    ],
    hdrs = [
        "src/host/hcd.h",
        "src/host/hcd_attr.h",
        "src/host/hub.h",
        "src/host/usbh.h",
        "src/host/usbh_classdriver.h",
    ],
    strip_include_prefix = "src",
    deps = [":tinyusb"],
)

cc_library(
    name = "host_cdc",
    srcs = [
        "src/class/cdc/cdc_host.c",
        "src/class/cdc/cdc_rndis_host.c",
    ],
    hdrs = [
        "src/class/cdc/cdc.h",
        "src/class/cdc/cdc_host.h",
        "src/class/cdc/cdc_rndis.h",
        "src/class/cdc/cdc_rndis_host.h",
    ],
    strip_include_prefix = "src",
    deps = [":host"],
    alwayslink = 1,
)

cc_library(
    name = "host_hid",
    srcs = ["src/class/hid/hid_host.c"],
    hdrs = [
        "src/class/hid/hid.h",
        "src/class/hid/hid_host.h",
    ],
    strip_include_prefix = "src",
    deps = [":host"],
    alwayslink = 1,
)

cc_library(
    name = "host_msc",
    srcs = ["src/class/msc/msc_host.c"],
    hdrs = [
        "src/class/msc/msc.h",
        "src/class/msc/msc_host.h",
    ],
    strip_include_prefix = "src",
    deps = [":host"],
    alwayslink = 1,
)

cc_library(
    name = "host_vendor",
    srcs = ["src/class/vendor/vendor_host.c"],
    hdrs = ["src/class/vendor/vendor_host.h"],
    strip_include_prefix = "src",
    deps = [":host"],
    alwayslink = 1,
)