target/rp/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.

load("@pigweed//pw_build:merge_flags.bzl", "flags_from_dict")
load("@rules_rust//rust:defs.bzl", "rust_library")

constraint_value(
    name = "rp235x",
    constraint_setting = "@pigweed//pw_build/constraints/chipset:chipset",
    visibility = ["//visibility:public"],
)

cc_library(
    name = "rp2350_linker_script",
    linkopts = ["-T$(location rp2350.ld)"],
    target_compatible_with = [":rp235x"],
    deps = [
        "rp2350.ld",
    ],
)

platform(
    name = "rp2350",
    constraint_values = [
        ":rp235x",
        "@pigweed//pw_build/constraints/arm:cortex-m33",
        "@platforms//cpu:armv8-m",
        "@platforms//os:none",
        "@rust_crates//:no_std",
    ],
    flags = flags_from_dict({
        "//arch:arch_backend": "//arch/arm_cortex_m:arm_cortex_m",
        "//target:target_backend": ":target_rp2350",
        "//lib/unittest:unittest_runner": "//lib/unittest:unittest_runner_cortex_m",
        "//kernel/sync:spinlock_backend": "//arch/arm_cortex_m:spinlock_backend_cortex_m",
        "//target:linker_script": "//target/rp:rp2350_linker_script",
        "//subsys/console:console_backend": ":console_backend",
    }),
)

rust_library(
    name = "console_backend",
    srcs = ["console_backend.rs"],
    target_compatible_with = select({
        ":rp235x": [],
        "//conditions:default": ["@platforms//:incompatible"],
    }),
    visibility = ["//visibility:public"],
    deps = [
        "//kernel/sync:spinlock",
        "//lib/pw_status",
        "@rust_crates//:embedded-io",
        "@rust_crates//:rp235x-hal",
    ],
)

rust_library(
    name = "target_rp2350",
    srcs = ["target_rp2350.rs"],
    crate_name = "target_backend",
    deps = [
        ":console_backend",
        "//target:target_interface",
        "@rust_crates//:cortex-m-rt",
        "@rust_crates//:panic-halt",
        "@rust_crates//:rp235x-hal",
    ],
)