Konstantin Sharlaimov c1a4ed1489 machine/stm32: add OTG FS USB driver for F4/F7 ...

STM32F4 and F7 share the same OTG FS IP but have no USB driver in
TinyGo. This adds a full device-mode driver covering CDC, HID, and
MSC with working examples.

- OTG FS has 4 physical EPs (0–3); virtual indices 4–7 fold onto
  them via physEP() so the existing machine/usb API is unchanged
- F4 bypasses VBUS sensing via GCCFG.NOVBUSSENS; F7 uses the USB
  voltage regulator + GOTGCTL B-valid override instead
- STM32F7 PLL_Q changed 2→9 to produce the 48 MHz clock required
  by USB/RNG/SDMMC; CK48MSEL cleared to select main PLL as source
- HID and MSC descriptors remapped at init() to physical endpoint
  addresses (EP2/EP1 for HID, EP2/EP3 for MSC)
- usb-storage example replaced machine.Flash with a FAT12 RAM disk
  so the host mounts without reformatting
- MSC sendCSW sets queuedBytes before state transition to fix a
  missed byte-count on the status phase

2026-07-12 10:45:49 +02:00

..

ar.go

darwin: support Boehm GC (and use by default)

2025-03-25 12:33:13 +01:00

bdwgc.go

all: shrink bdwgc library

2025-10-03 15:46:25 +02:00

build.go

UEFI Target Groundwork: Add LinkerFlavor compile option (#5465)

2026-07-08 10:33:59 +02:00

builder_test.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

buildid.go

builder: generalize build ID fallback to darwin

2023-10-15 17:51:13 +02:00

builtins.go

wasm: add Boehm GC support

2025-06-13 14:42:23 +02:00

cc1as.cpp

all: add full LLVM 20 support

2025-09-17 05:28:06 -04:00

cc1as.h

make spellfix (+ manual tweak)

2026-04-17 10:33:07 +02:00

cc_test.go

builder: cache C and assembly file outputs

2021-04-05 20:52:04 +02:00

cc.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

clang.cpp

all: add full LLVM 20 support

2025-09-17 05:28:06 -04:00

commands.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

config.go

all: update golang.org/x/tools

2026-05-28 19:32:08 +02:00

darwin-libsystem.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

elfpatch.go

rp2040: patch elf to checksum 2nd stage boot

2021-06-17 12:10:04 +02:00

error.go

builder: interpret linker error messages

2024-08-11 01:48:11 -07:00

esp.go

machine,targets: add minimal esp32c6 implementation

2026-06-25 19:30:24 +02:00

jobs.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

library.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

lld.cpp

all: statically link to LLVM 17 instead of LLVM 16

2024-01-05 21:13:30 +01:00

mingw-w64.go

wasm: add Boehm GC support

2025-06-13 14:42:23 +02:00

musl.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

nrfutil.go

builder: implement Nordic DFU file writer in Go

2023-05-13 09:52:42 +02:00

objcopy.go

all: remove calls to deprecated ioutil package

2022-08-07 10:32:23 +02:00

picolibc.go

wasm: add Boehm GC support

2025-06-13 14:42:23 +02:00

robustio_other.go

builder: retry cached archive renames on Windows (#5462)

2026-06-12 16:33:13 -07:00

robustio_windows.go

builder: retry cached archive renames on Windows (#5462)

2026-06-12 16:33:13 -07:00

size-report.go

builder: write HTML size report

2024-12-19 15:08:37 +01:00

size-report.html

builder: show files in size report table

2024-12-19 15:08:37 +01:00

sizes_test.go

machine/stm32: add OTG FS USB driver for F4/F7

2026-07-12 10:45:49 +02:00

sizes.go

builder: don't count non-writable SHT_NOBITS sections as RAM/bss

2026-06-30 19:52:47 +02:00

tools-builtin.go

builder, cgo, syscall: replace fixed-size array casts with unsafe.Slice

2026-05-11 09:35:04 +02:00

tools-external.go

build: drop deprecated build tags

2022-12-19 23:20:11 +01:00

tools.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

uf2.go

all: modernize (#5498)

2026-07-06 21:58:48 +02:00

wasilibc.go

wasm: add Boehm GC support

2025-06-13 14:42:23 +02:00

wasmbuiltins.go

wasm: add Boehm GC support

2025-06-13 14:42:23 +02:00