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Robert Allan JamesandClaude Sonnet 5 2c34e45d05 Artemis Milestone 2f: EP0 control transfer, device descriptor request

Adds Setup/Data/Status stage TRB types and control bits (IDT, TRT, DIR)
to xhci.h, and xhci_ep0_enqueue_trb()/xhci_ep0_get_device_descriptor() to
xhci.c -- the first real control transfer this driver has issued.
Follows the same enqueue-then-doorbell-once pattern as the Command Ring,
operating on the EP0 Transfer Ring built during 2e's Address Device work.
Setup Stage uses Immediate Data (parameter IS the 8-byte setup packet);
Data Stage reads into a reused 18-byte device_descriptor buffer; Status
Stage alone carries IOC, so exactly one Transfer Event signals transfer
completion, correlated via a new pending_transfer_slot_id (same
single-outstanding-operation pattern as connect/Enable Slot/Address
Device).

Automatically triggered once Address Device succeeds. Verified live via
QMP hotplug, all three architectures, worked first try with identical
results everywhere: idVendor=0x46f4, idProduct=0x0001, bDeviceClass=0x00
-- the class=0 confirms Mass Storage class detection needs the
Configuration/Interface descriptor (2f's next item), not the device
descriptor.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HZ8kNoTuP63pbQtro4qvrm

2026-08-22 12:59:49 -04:00

artemis_stress

Add Artemis compudynamics implementation plan; add stress campaign fixture

2026-08-02 21:49:16 -04:00

bare_metal

Artemis Milestone 2f: EP0 control transfer, device descriptor request

2026-08-22 12:59:49 -04:00

README.md

Initial commit — LithosAnanke kernel

2026-08-01 07:49:56 -04:00

README.md

experiments/

Design of Experiments (DoE) campaign data and analysis for the LithosAnanke kernel.

bare_metal/ — the bare-metal DoE experiment: blind full-factorial 2⁴ runs measuring the L8 Jacquard mode selector's effect on the Steady-State Machine across amd64/aarch64/riscv64. See experiments/bare_metal/README.md for the full directory layout (runs/, latest/, analysis/{charts,tables,report}).

Hosted-VM DoE campaigns (factorial/heartbeat/ablation studies) live under docs/working/experiments/ instead — this top-level directory is specifically the kernel/bare-metal side.