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acpi-i2c-hid: implement wave 1 boot-path diagnostics and service wiring

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Vasilito
2026-04-22 21:31:19 +01:00
parent 0323d7b8a7
commit 78e5d99fb8
13 changed files with 725 additions and 33 deletions
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local/docs/LINUX-BORROWING-RUST-IMPLEMENTATION-PLAN.md
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@@ -195,19 +195,26 @@ Grounded in:
- `recipes/core/base/source/drivers/hwd/src/backend/acpi.rs`
- `recipes/core/base/source/drivers/hwd/src/main.rs`
- `recipes/core/base/source/drivers/acpid/src/acpi.rs`
- `recipes/core/base/source/init.initfs.d/40_pcid.service`
- `recipes/core/base/source/init.initfs.d/41_acpid.service`
- `recipes/core/base/source/init.initfs.d/40_hwd.service`
- `recipes/core/base/source/init.initfs.d/40_pcid-spawner-initfs.service`
Strict order:
1. kernel bootstrap / memory / early ACPI / IRQ / serio baseline
2. userspace bootstrap
3. `hwd` starts
4. `hwd` ACPI backend spawns `acpid`
5. `hwd` main spawns `pcid`
6. `acpid` waits for PCI registration before AML-symbol readiness
3. `pcid` starts in initfs (`40_pcid.service`)
4. `acpid` starts in initfs (`41_acpid.service`)
5. `hwd` starts (`40_hwd.service`) and probes only after `pcid` + `acpid`
6. `pcid-spawner` runs (`40_pcid-spawner-initfs.service`)
7. `acpid` waits for PCI registration before AML-symbol readiness
### Shared initfs target membership (not strict serialization)
Grounded in:
- `recipes/core/base/source/init.initfs.d/40_pcid.service`
- `recipes/core/base/source/init.initfs.d/40_hwd.service`
- `recipes/core/base/source/init.initfs.d/41_acpid.service`
- `recipes/core/base/source/init.initfs.d/40_pcid-spawner-initfs.service`
- `recipes/core/base/source/init.initfs.d/40_ps2d.service`
- `recipes/core/base/source/init.initfs.d/40_drivers.target`
@@ -216,7 +223,7 @@ Grounded in:
- `recipes/core/base/source/init.initfs.d/20_graphics.target`
Important nuance:
- `ps2d`, `hwd`, and `pcid-spawner-initfs` all participate in early initfs driver bring-up.
- `ps2d`, `pcid`, `acpid`, `hwd`, and `pcid-spawner-initfs` all participate in early initfs driver bring-up.
- They are grouped by `40_drivers.target`, but they are **not** one single strict serial chain.
## 3. What Linux material Red Bear should borrow into Rust