[package]
name = "esp-p4-eth"
version = "0.1.0"
edition = "2021"
license = "MIT OR Apache-2.0"
description = "no_std async Ethernet MAC driver for ESP32-P4 RMII designs (embassy-net compatible)"
repository = "https://github.com/babasha/esp-p4-eth"
homepage = "https://github.com/babasha/esp-p4-eth"
documentation = "https://docs.rs/esp-p4-eth"
readme = "README.md"
keywords = ["esp32", "esp32p4", "ethernet", "embassy", "no-std"]
categories = ["embedded", "network-programming", "no-std", "hardware-support"]
build = "build.rs"


[lib]
path = "src/lib.rs"

[features]
default = ["mock-time", "embassy-net-tcp", "embassy-net-icmp"]
fuzzing = []
ip101 = []
hal-integration = ["dep:esp-hal"]
hal-smoke = ["hal-integration", "esp-hal/esp32c6", "esp-hal/unstable"]
p4-example = []
# Optional embassy-net features. Off by default in the slim P4 build path so
# binaries fit below the L2 cache region (0x4FF80000) on the Waveshare P4-ETH
# board. Enable explicitly when an example needs the corresponding capability.
embassy-net-tcp = ["embassy-net/tcp"]
embassy-net-udp = ["embassy-net/udp"]
embassy-net-icmp = ["embassy-net/auto-icmp-echo-reply"]
# Use embassy-time's bundled mock driver. Required for host tests and for the
# legacy P4 examples that still spawn `mock_time_task`. Mutually exclusive with
# `p4-time-driver`.
mock-time = ["embassy-time/mock-driver"]
# SYSTIMER-backed embassy-time driver (polling). Use with --no-default-features
# to keep `mock-time` off (otherwise embassy-time gets two drivers and the
# linker fails with duplicate _embassy_time_now).
p4-time-driver = [
    "embassy-time/tick-hz-1_000_000",
    "dep:embassy-time-driver",
    "dep:embassy-time-queue-utils",
]
# IRQ-driven SYSTIMER+CLIC embassy-time driver. Mutually exclusive with
# `p4-time-driver` (only one `time_driver_impl!` per crate). Use this for
# real workloads — the executor drops to `wfi` when idle instead of burning
# a core in a polling task.
p4-time-driver-irq = [
    "embassy-time/tick-hz-1_000_000",
    "dep:embassy-time-driver",
    "dep:embassy-time-queue-utils",
]
# Diagnostic feature for cold-boot hang investigation. When enabled,
# `phy::Ip101::init` writes step-by-step progress markers to UART0 (raw
# MMIO writes — no UART driver needed). Off by default; zero overhead.
phy-init-debug = []
# Gate for the bring-up / scratch examples under `examples/dev/`. The
# canonical OSS examples (embassy_static_ping, embassy_dhcp,
# embassy_tcp_echo_irq) build without this. Internal-use only.
dev-examples = []

[dependencies]
embassy-net-driver-channel = "0.3"
embassy-executor = { version = "0.10", default-features = false }
embassy-futures = "0.1"
embassy-net = { version = "0.9", default-features = false, features = ["medium-ethernet", "proto-ipv4", "dhcpv4"] }
embassy-sync = "0.7"
embassy-time = { version = "0.5", default-features = false }
embassy-time-driver = { version = "0.2", default-features = false, optional = true }
embassy-time-queue-utils = { version = "0.3", default-features = false, optional = true }
# `critical-section` is required by the L1+L2 cache ROM helper wrap in
# `dma::sync_cache_region` and is part of the cold-boot reliability fix —
# it is unconditional, not gated behind a time-driver feature.
critical-section = { version = "1.2", default-features = false }
heapless = { version = "0.9", default-features = false }
static_cell = "2"
vcell = "0.1"
esp-hal = { version = "~1.0", default-features = false, features = ["requires-unstable"], optional = true }

[target.riscv32imafc-unknown-none-elf.dev-dependencies]
esp32p4 = { version = "0.2.0", features = ["rt"] }
panic-halt = "1.0"
riscv = { version = "0.15.0", features = ["critical-section-single-hart"] }
riscv-rt = { version = "0.16.0", features = ["memory", "device"] }

[target.x86_64-pc-windows-msvc.dev-dependencies]
critical-section = { version = "1.2", features = ["std"] }

[target.x86_64-unknown-linux-gnu.dev-dependencies]
critical-section = { version = "1.2", features = ["std"] }

# --- Canonical examples (public, build by default with required features) ---

[[example]]
name = "embassy_dhcp"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver"]

[[example]]
name = "embassy_static_ping"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver", "embassy-net-icmp"]

[[example]]
name = "embassy_tcp_echo_irq"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver-irq", "embassy-net-tcp"]

[[example]]
name = "embassy_tcp_soak"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver-irq", "embassy-net-tcp"]

# --- Dev / bring-up examples (gated behind `dev-examples`, live in examples/dev/) ---

[[example]]
name = "emac_hello"
path = "examples/dev/emac_hello.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "emac_loopback"
path = "examples/dev/emac_loopback.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "emac_raw"
path = "examples/dev/emac_raw.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "emac_dhcp"
path = "examples/dev/emac_dhcp.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "dhcp_echo"
path = "examples/dev/dhcp_echo.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "static_ip"
path = "examples/dev/static_ip.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "emac_init"
path = "examples/dev/emac_init.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "phy_probe"
path = "examples/dev/phy_probe.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "clk_dump"
path = "examples/dev/clk_dump.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "mdio_test"
path = "examples/dev/mdio_test.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "embassy_smoke"
path = "examples/dev/embassy_smoke.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "systimer_probe"
path = "examples/dev/systimer_probe.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "embassy_time_smoke"
path = "examples/dev/embassy_time_smoke.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver", "dev-examples"]

[[example]]
name = "embassy_tcp_echo"
path = "examples/dev/embassy_tcp_echo.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver", "embassy-net-tcp", "dev-examples"]

[[example]]
name = "embassy_udp_echo"
path = "examples/dev/embassy_udp_echo.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver", "embassy-net-udp", "dev-examples"]

[[example]]
name = "clic_irq_smoke"
path = "examples/dev/clic_irq_smoke.rs"
test = false
bench = false
required-features = ["p4-example", "dev-examples"]

[[example]]
name = "embassy_irq_smoke"
path = "examples/dev/embassy_irq_smoke.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver-irq", "dev-examples"]

[[example]]
name = "embassy_tcp_stress_irq"
path = "examples/dev/embassy_tcp_stress_irq.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver-irq", "embassy-net-tcp", "dev-examples"]

[[example]]
name = "phy_init_diag"
path = "examples/dev/phy_init_diag.rs"
test = false
bench = false
required-features = ["p4-example", "p4-time-driver-irq", "phy-init-debug", "dev-examples"]