targets/arduino/target_toolchains.gni

# Copyright 2022 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.

import("//build_overrides/pigweed.gni")

import("$dir_pigweed/targets/arduino/target_toolchains.gni")
import("$dir_pigweed_experimental/targets/common_backends.gni")
import("$dir_pw_protobuf_compiler/proto.gni")
import("$dir_pw_third_party/nanopb/nanopb.gni")

target_toolchain_arduino = {
  _excluded_members = [
    "defaults",
    "name",
  ]

  arduino_debug = {
    name = "arduino_debug"
    _toolchain_base = pw_target_toolchain_arduino.debug
    forward_variables_from(_toolchain_base, "*", _excluded_members)
    defaults = {
      forward_variables_from(_toolchain_base.defaults, "*")
      forward_variables_from(toolchain_overrides, "*")

      app_common_BACKEND = "//applications/app_common_impl:arduino"
      pw_lcd_width = "320"
      pw_lcd_height = "240"
      pw_lcd_cs_pin_num = "32"
      pw_lcd_dc_pin_num = "9"
      pw_lcd_rst_pin_num = "3"

      # pw_spi_arduino currently uses the Arduino SPI API which uses hard
      # coded (via the board config) SPI pin assignments. These are currently
      # ignored.
      pw_spi_miso_pin_num = "-1"  # Pin 12 on Teensy 4.1
      pw_spi_mosi_pin_num = "-1"  # Pin 11 on Teensy 4.1
      pw_spi_clock_pin_num = "-1"  # Pin 13 on Teensy 4.1

      # Configure backend for pw_board_led
      pw_board_led_BACKEND = "$dir_pw_board_led_arduino"

      # Configure backend for pw_spin_delay
      pw_spin_delay_BACKEND = "$dir_pw_spin_delay_arduino"

      # Configure backend for pw_touchscreen
      pw_touchscreen_BACKEND = "$dir_pw_touchscreen_null"

      # These backends are for Teensy core builds.
      # pw_touchscreen_BACKEND = "$dir_pw_touchscreen_teensy_xpt2046"
      # pw_touchscreen_BACKEND = "$dir_pw_touchscreen_teensy_stmpe610"
    }
  }

  # Toolchain for tests only.
  arduino_debug_tests = {
    name = "arduino_debug_tests"
    _toolchain_base = pw_target_toolchain_arduino.debug
    forward_variables_from(_toolchain_base, "*", _excluded_members)
    defaults = {
      forward_variables_from(_toolchain_base.defaults, "*")
      forward_variables_from(toolchain_overrides, "*")

      # Force tests to use basic log backend to avoid generating and loading its
      # own tokenized database.
      pw_log_BACKEND = dir_pw_log_basic
    }
  }
}

toolchains_list = [
  target_toolchain_arduino.arduino_debug,
  target_toolchain_arduino.arduino_debug_tests,
]