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1# Copyright 2022 The Pigweed Authors
2#
3# Licensed under the Apache License, Version 2.0 (the "License"); you may not
4# use this file except in compliance with the License. You may obtain a copy of
5# the License at
6#
7#     https://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12# License for the specific language governing permissions and limitations under
13# the License.
14
15import("//build_overrides/pi_pico.gni")
16import("//build_overrides/pigweed.gni")
17
18import("$dir_pw_build/target_types.gni")
19
20# TODO(amontanez): This can go away if the GN build can be upstreamed to the
21# Pi Pico repo.
22_CWD = "${PICO_SRC_DIR}/src/common/pico_stdlib"
23
24import("pico_stdio.gni")
25
26config("public_include_dirs") {
27  include_dirs = [ "${_CWD}/include" ]
28  defines = [ "${PICO_STDIO}=1" ]
29}
30
31pw_source_set("headers") {
32  public_configs = [
33    "${PICO_ROOT}/gn:disable_warnings",
34    ":public_include_dirs",
35  ]
36  public_deps = [
37    "${PICO_ROOT}/src/common/pico_base",
38    "${PICO_ROOT}/src/common/pico_time",
39    "${PICO_ROOT}/src/rp2_common/hardware_gpio",
40    "${PICO_ROOT}/src/rp2_common/hardware_uart",
41    "${PICO_ROOT}/src/rp2_common/pico_stdio",
42  ]
43
44  if (PICO_STDIO == ENUM_LIB_PICO_STDIO.UART) {
45    public_deps += [ "${PICO_ROOT}/src/rp2_common/pico_stdio_uart" ]
46  } else if (PICO_STDIO == ENUM_LIB_PICO_STDIO.USB) {
47    public_deps += [ "${PICO_ROOT}/src/rp2_common/pico_stdio_usb" ]
48
49    # Required to allow circular dependencies.
50    deps = [ "${PICO_ROOT}/src/rp2_common/tinyusb:bsp" ]
51    allow_circular_includes_from = [
52      "${PICO_ROOT}/src/rp2_common/pico_stdio_usb",
53      "${PICO_ROOT}/src/rp2_common/tinyusb:bsp",
54    ]
55  } else if (PICO_STDIO == ENUM_LIB_PICO_STDIO.SEMIHOSTING) {
56    public_deps += [ "${PICO_ROOT}/src/rp2_common/pico_stdio_semihosting" ]
57  }
58
59  public = [ "${_CWD}/include/pico/stdlib.h" ]
60}
61
62pw_source_set("pico_stdlib") {
63  public_configs = [ "${PICO_ROOT}/gn:disable_warnings" ]
64  public_deps = [ ":headers" ]
65  public = [ "${_CWD}/include/pico/stdlib.h" ]
66
67  # Ensure the pico stdlib implementation is linked in.
68  deps = [ "${PICO_ROOT}/src/rp2_common/pico_stdlib" ]
69}
70