src/devices/serial/drivers/uart16550/BUILD.gn

# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/fuchsia/rules.gni")
import("//build/test.gni")
import("//build/test/test_package.gni")

group("tests") {
  testonly = true
  deps = [ ":uart16550-test-package" ]
}

# We need to build both a "normal" and a "testonly" version of the library,
# because its headers (and implementation) want to include testonly headers
# like hwreg/mock.h for the benefit of uart16550-test below.
#
# The config below is used to define a macro that is used by uart16550.h to
# conditionally include hwreg/mock.h, and define certain mocking-related
# types and methods.
config("testing.config") {
  defines = [ "UART16550_TESTING=1" ]
}

# A template to define a source_set() target for the library. The `testonly`
# parameter is required.
template("define_common_lib") {
  source_set(target_name) {
    visibility = [ ":*" ]
    configs += [
      "//build/config:all_source",
      "//build/unification/config:zircon-migrated",
      "//build/config/fuchsia:enable_zircon_asserts",
    ]
    sources = [ "uart16550.cc" ]
    deps = [ "//sdk/fidl/fuchsia.hardware.serial:fuchsia.hardware.serial_c" ]
    public_deps = [
      "//sdk/banjo/ddk.protocol.acpi",
      "//sdk/banjo/ddk.protocol.serial",
      "//sdk/banjo/ddk.protocol.serialimpl",
      "//src/lib/ddk",

      # TODO(fxb/38132): Migrate to the new bind rules and delete the below
      "//src/lib/ddk:ddk-deprecated-binding-headers",
      "//src/lib/ddktl",
      "//zircon/public/lib/fbl",
      "//zircon/public/lib/hwreg",
      "//zircon/public/lib/zx",
      "//zircon/system/ulib/uart",
    ]
    if (invoker.testonly) {
      testonly = true
      public_deps += [ "//zircon/public/lib/hwreg-mock" ]
      public_configs = [ ":testing.config" ]
    }
  }
}

# This version of the library doesn't have any mocking support, but can
# be used by all other targets.
define_common_lib("uart16550_lib") {
  testonly = false
}

# This version of the library has mocking support, but requires testonly = true.
define_common_lib("uart16550_lib_for_testing") {
  testonly = true
}

driver_module("uart16550") {
  configs += [ "//build/unification/config:zircon-migrated" ]
  deps = [
    ":uart16550_lib",
    "//src/devices/lib/driver",
  ]
}

test("uart16550-test") {
  configs += [ "//build/unification/config:zircon-migrated" ]
  output_name = "uart16550-test"
  sources = [ "uart16550-test.cc" ]
  deps = [
    ":uart16550_lib_for_testing",
    "//src/devices/testing/fake_ddk",
    "//zircon/public/lib/hwreg-mock",
    "//zircon/public/lib/zx",
    "//zircon/public/lib/zxtest",
  ]
}

unittest_package("uart16550-test-package") {
  package_name = "uart16550-test"
  deps = [ ":uart16550-test" ]
  tests = [
    {
      name = "uart16550-test"
    },
  ]
}