Add basic support for xHCI USB controllers and non root xHCI hubs. The motivation is to use this code on platforms that do not provide user input by runtime services (like BIOS or UEFI platform) do. This is the case when GRUB is used as coreboot payload for example.
The code is based on seabios implementation, but has been heavily modified to match grubs internals. Changes done in version 2: * Code cleanup * Code style fixes * Don't leak memory buffers * Compile without warnings * Add more defines * Add more helper functions * Don't assume a 1:1 virtual to physical mapping * Flush cachelines after writing buffers * Don't use hardcoded page size * Proper scratchpad register setup * xHCI bios ownership handoff Changes done in version 3: * Several bug fixes for real hardware * Fixed a race condition detecting events, which doesn't appear on qemu based xHCI controllers * Don't accidently disable USB3.0 devices after first command * Support arbitrary protocol speed IDs * Coding style cleanup * Support for non root SuperSpeed hubs Changes Tested: * Qemu system x86_64 * virtual USB HID keyboard (usb-kbd) * virtual USB HID mass storage (usb-storage) * Intel C246 integrated xHCI (Supermicro X11SSH-F) * iKVM HID keyboard * USB3 HID mass storage (controller root port) * External USB HID keyboard TODO: * Test on more hardware * Test on USB3 hubs * Support for USB 3.1 and USB 3.2 controllers Patrick Rudolph (7): grub-core/bus/usb: Parse SuperSpeed companion descriptors usb: Add enum for xHCI usbtrans: Set default maximum packet size grub-core/bus/usb: Add function pointer for attach/detach events grub-core/bus/usb/usbhub: Add new private fields for xHCI controller grub-core/bus/usb: Add xhci support grub-core/bus/usb/usbhub: Add xHCI non root hub support Makefile.am | 2 +- grub-core/Makefile.core.def | 7 + grub-core/bus/usb/ehci.c | 2 + grub-core/bus/usb/ohci.c | 2 + grub-core/bus/usb/serial/common.c | 2 +- grub-core/bus/usb/uhci.c | 2 + grub-core/bus/usb/usb.c | 44 +- grub-core/bus/usb/usbhub.c | 95 +- grub-core/bus/usb/usbtrans.c | 6 +- grub-core/bus/usb/xhci-pci.c | 195 +++ grub-core/bus/usb/xhci.c | 2496 +++++++++++++++++++++++++++++ grub-core/commands/usbtest.c | 2 +- grub-core/disk/usbms.c | 2 +- grub-core/term/usb_keyboard.c | 2 +- include/grub/usb.h | 18 +- include/grub/usbdesc.h | 12 +- include/grub/usbtrans.h | 4 + 17 files changed, 2852 insertions(+), 41 deletions(-) create mode 100644 grub-core/bus/usb/xhci-pci.c create mode 100644 grub-core/bus/usb/xhci.c -- 2.26.2 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
