[package]
name        = "jiggly"
version     = "0.3.0"
edition     = "2024"
authors     = ["Stephen Waits <steve@waits.net>"]
description = "USB mouse jiggler firmware for the Seeed Studio Xiao RP2040 — keeps your screen awake during the workday, then politely shuts up so you can go home."
license     = "MIT"
repository  = "https://github.com/swaits/jiggly"
readme      = "README.md"
keywords    = ["embedded", "rp2040", "usb-hid", "embassy", "no-std"]
categories  = ["embedded", "no-std"]
publish     = false  # firmware binary; not a crates.io library

[features]
default = ["embassy", "panic-reset"]
# `hsmc` emits `#[cfg(feature = "embassy")]` from inside `statechart!` and
# the cfg is evaluated in this crate's context, so we mirror the flag here
# and forward it to `hsmc/embassy`.
embassy = ["hsmc/embassy"]
# Default panic handler — silently resets the chip. Mutually exclusive with
# `defmt` (which uses panic-probe). Build a defmt firmware with
# `cargo build --no-default-features --features embassy,defmt`.
panic-reset = ["dep:panic-reset"]
# Same trick as `embassy` above: `hsmc` emits `#[cfg(feature = "trace-defmt")]`
# from inside `__chart_observe!` (re-exported via `statechart!`), and that
# cfg is evaluated in *this* crate's feature set, not hsmc's. So we mirror
# the flag here and forward it to `hsmc/trace-defmt`. Without this mirror,
# `--features defmt` would compile cleanly but emit zero state-transition
# logs, because every defmt arm in __chart_observe! would be cfg'd out.
trace-defmt = ["hsmc/trace-defmt"]
# Debug build over RTT. Pulls in defmt + defmt-rtt, swaps the panic handler
# for panic-probe (so panics get printed instead of silently resetting), and
# turns on hsmc's chart/state/transition tracing.
defmt = [
    "dep:defmt",
    "dep:defmt-rtt",
    "dep:panic-probe",
    "trace-defmt",
]

[dependencies]
embassy-executor = { version = "0.10.0", features = ["platform-cortex-m", "executor-thread"] }
embassy-time     = { version = "0.5.1" }
embassy-rp       = { version = "0.10.0", features = ["rp2040", "time-driver", "critical-section-impl", "unstable-pac"] }
embassy-sync     = "0.8"
embassy-futures  = "0.1"
embassy-usb      = "0.6.0"
hsmc             = { version = "0.6.0", default-features = false }
usbd-hid         = "0.10.0"
smart-leds       = "0.4"
libm             = "0.2"

cortex-m        = { version = "0.7.6", features = ["inline-asm"] }
cortex-m-rt     = "0.7.5"
panic-reset     = { version = "0.1", optional = true }
static_cell     = "2.1"
# Cortex-M0+ has no hardware CAS; static_cell + heapless need this shim.
portable-atomic = { version = "1.13", features = ["critical-section"] }

# Defmt stack — only linked when the `defmt` feature is enabled.
defmt       = { version = "0.3", optional = true }
defmt-rtt   = { version = "0.4", optional = true }
panic-probe = { version = "0.3", features = ["print-defmt"], optional = true }

[lints.rust]
unexpected_cfgs = { level = "allow", check-cfg = ['cfg(feature, values("tokio", "embassy"))'] }

[profile.release]
lto             = "fat"      # cross-crate inlining and dead-code elimination
opt-level       = "z"        # optimise for size over speed (vs "s")
codegen-units   = 1          # single unit so LTO sees everything
debug           = 2          # symbols stay in the ELF for `just bloat` /
#                              `just size`; `cargo objcopy -O binary` strips
#                              them when producing the flashable .bin / .uf2
overflow-checks = false
panic           = "abort"    # no unwinding tables; panic-reset just resets