Robert Allan JamesandClaude Sonnet 5
92ce1f85dd
Adds the xHCI Configure Endpoint command for the two bulk endpoints identified by the previous increment, and fixes control-transfer sequencing to match the spec: xHCI 1.2 section 4.3.5 requires Configure Endpoint before SET_CONFIGURATION is sent to the device, the reverse of the order this driver used through 2f (which happened to work against QEMU's lenient qemu-xhci emulation but wasn't spec-correct). New XHCI_TRB_TYPE_CONFIGURE_ENDPOINT_CMD, EP Context type constants for Bulk IN/OUT, and an XHCI_EP_ADDR_TO_DCI() macro (DCI = 2*EndpointNumber + Direction) in xhci.h. xhci_cmd_configure_endpoint() builds the Input Context (Slot + one EP Context per DCI up to the highest bulk endpoint in use) and submits the command via the existing next_action deferral mechanism, correlated on completion via a new XHCI_CONN_AWAIT_CONFIGURE_ENDPOINT connect_state, then chains into the existing SET_CONFIGURATION path. Two allocations had to grow beyond what Address Device sized them for: the Input Context (previously room for one EP Context only) and, less obviously, the Device Context that DCBAA[slot_id] itself points at -- the controller only touches DCIs named in a command's own Add/Drop flags, so growing that buffer required copying its existing Slot+EP0 content forward rather than zeroing it, to avoid handing the controller a blank EP0 out from under an endpoint this command isn't touching. Bulk Transfer Rings (bulk_in_ring/bulk_out_ring) are allocated and wired into the new EP Contexts but not yet exercised by an actual transfer -- CBW/CSW submission is next. Verified live via QMP hotplug, all three architectures, byte-identical: bulk endpoint identification -> configure endpoint command submitted -> configure endpoint succeeded -> the existing set configuration -> device configured chain, then a clean disconnect/disable-slot teardown afterward with the larger Device Context installed. FABRIC-2.md Section X Milestone 2g's endpoint identify+configure checklist item marked fully done. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01R4VMX6VSKCten8nGgaMkq4
include/starkernel/
Headers for LithosAnanke, the bare-metal UEFI kernel (src/starkernel/).
Built only via Makefile.starkernel; gated by __STARKERNEL__ when shared
with hosted code.
uefi.h— UEFI protocol/type definitions consumed by the loader.elf64.h,elf_loader.h— ELF64 parsing and kernel-image loading.boot_info_offsets.h— struct-offset constants shared between the assembly bootstrap and the C boot path.arch.h,apic.h,timer.h— architecture init, APIC interrupt controller, timer (TSC/HPET/APIC, 100 Hz heartbeat).console.h,framebuffer.h,vt100.h— UART 16550 console, framebuffer driver, and VT100 terminal emulation over the framebuffer.pmm.h,vmm.h,kmalloc.h— physical memory manager (bitmap allocator), 4-level x86_64 paging, kernel heap allocator.pci.h,virtio_blk.h— PCI enumeration and the VirtIO block device driver (disk backend for the kernel block subsystem).capsule.h,capsule_birth.h,capsule_loader.h,capsule_run.h,capsule_vm_physics.h,capsule_generated.h— capsule system types, birth protocol, physics-runtime capsule bindings, and the build-time- generated capsule directory (seetools/mkcapsule.c).kernel_args.h,cmdline.h— boot-time kernel argument parsing (starforth.cfg/ command line).repl.h— kernel REPL.log.h,doe_log.h— kernel logging and DoE metrics logging.q48_16.h— kernel-build copy of Q48.16 fixed-point arithmetic.xxhash64.h— content-addressing hash used for capsule IDs.hal_memory.h— hardware-abstraction-layer memory interface.
Subdirectories:
hal/— top-level hardware-abstraction-layer interface.vm/— kernel VM subsystem headers (capsule arena, parity logging, bootstrap wiring).freestanding/— minimal libc-shim headers (assert.h,ctype.h,errno.h,inttypes.h,math.h,sched.h,signal.h,stdio.h,stdlib.h,string.h,time.h,sys/time.h,sys/types.h) for building shared VM code in the freestanding kernel environment, where no real libc is available.