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grub/xhci: Add xHCI non-root-hub fixes from Nitrokey

Browse Source 
See:
https://github.com/Nitrokey/nethsm-grub/commits/nethsm-z790?since=2025-01-13&until=2025-01-13

And more generally, see branch:
https://github.com/Nitrokey/nethsm-grub/commits/nethsm-z790

This brings in a few minor fixes, and also a not-so-minor fix:
Add TT (transaction translation) handling for non-SuperSpeed
devices in xhci.c

More generally, this patchset will improve non-root hub support
in the xHCI code. There is also a patch to work around a quirk
on the MSI Z790-P mainboard, which I'm planning to add to Libreboot
at a later date.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2025-01-14 20:24:00 +00:00
parent 7bf0d4c2ed
commit 64d3c7b515
26 changed files with 255 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/grub/xhci/patches/0022-xhci-fix-port-indexing.patch
+43
View File
@@ -0,0 +1,43 @@
From c455091ce40ffd8218802aaadeacf2039fea5036 Mon Sep 17 00:00:00 2001
From: Sven Anderson <sven@anderson.de>
Date: Mon, 13 Jan 2025 19:51:41 +0100
Subject: [PATCH 22/26] xhci: fix port indexing
---
grub-core/bus/usb/xhci.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/grub-core/bus/usb/xhci.c b/grub-core/bus/usb/xhci.c
index f4591ffb5..dc89b9619 100644
--- a/grub-core/bus/usb/xhci.c
+++ b/grub-core/bus/usb/xhci.c
@@ -2250,7 +2250,7 @@ grub_xhci_detect_dev (grub_usb_controller_t dev, int port, int *changed)
*changed = 0;
grub_dprintf("xhci", "%s: dev=%p USB%d_%d port %d\n", __func__, dev,
- x->psids[port-1].major, x->psids[port-1].minor, port);
+ x->psids[port].major, x->psids[port].minor, port);
/* On shutdown advertise all ports as disconnected. This will trigger
* a gracefull detatch. */
@@ -2285,13 +2285,13 @@ grub_xhci_detect_dev (grub_usb_controller_t dev, int port, int *changed)
if (!(portsc & GRUB_XHCI_PORTSC_CCS))
return GRUB_USB_SPEED_NONE;
- for (grub_uint8_t i = 0; i < 16 && x->psids[port-1].psids[i].id > 0; i++)
+ for (grub_uint8_t i = 0; i < 16 && x->psids[port].psids[i].id > 0; i++)
{
- if (x->psids[port-1].psids[i].id == speed)
+ if (x->psids[port].psids[i].id == speed)
{
grub_dprintf("xhci", "%s: grub_usb_speed = %d\n", __func__,
- x->psids[port-1].psids[i].grub_usb_speed );
- return x->psids[port-1].psids[i].grub_usb_speed;
+ x->psids[port].psids[i].grub_usb_speed );
+ return x->psids[port].psids[i].grub_usb_speed;
}
}
--
2.39.5