diff options
Diffstat (limited to 'config/grub/xhci/patches/0020-grub-core-bus-usb-usbhub-Add-xHCI-non-root-hub-suppo.patch')
| -rw-r--r-- | config/grub/xhci/patches/0020-grub-core-bus-usb-usbhub-Add-xHCI-non-root-hub-suppo.patch | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/config/grub/xhci/patches/0020-grub-core-bus-usb-usbhub-Add-xHCI-non-root-hub-suppo.patch b/config/grub/xhci/patches/0020-grub-core-bus-usb-usbhub-Add-xHCI-non-root-hub-suppo.patch new file mode 100644 index 00000000..735ef22d --- /dev/null +++ b/config/grub/xhci/patches/0020-grub-core-bus-usb-usbhub-Add-xHCI-non-root-hub-suppo.patch @@ -0,0 +1,127 @@ +From 127961742cf7992f6989c6e89a18ab6d8f0b297f Mon Sep 17 00:00:00 2001 +From: Patrick Rudolph <patrick.rudolph@9elements.com> +Date: Thu, 3 Dec 2020 13:44:55 +0100 +Subject: [PATCH 20/22] grub-core/bus/usb/usbhub: Add xHCI non root hub support + +Tested on Intel PCH C246, the USB3 hub can be configured by grub. + +Issues: +* USB3 devices connected behind that hub are sometimes not detected. + +Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> +--- + grub-core/bus/usb/usbhub.c | 38 +++++++++++++++++++++++++++++++++----- + include/grub/usbdesc.h | 1 + + include/grub/usbtrans.h | 4 ++++ + 3 files changed, 38 insertions(+), 5 deletions(-) + +diff --git a/grub-core/bus/usb/usbhub.c b/grub-core/bus/usb/usbhub.c +index b4b3a1a61..e96505aa9 100644 +--- a/grub-core/bus/usb/usbhub.c ++++ b/grub-core/bus/usb/usbhub.c +@@ -148,19 +148,32 @@ grub_usb_hub_add_dev (grub_usb_controller_t controller, + return dev; + } + +- ++static grub_usb_err_t ++grub_usb_set_hub_depth(grub_usb_device_t dev, grub_uint8_t depth) ++{ ++ return grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_OUT ++ | GRUB_USB_REQTYPE_CLASS ++ | GRUB_USB_REQTYPE_TARGET_DEV), ++ GRUB_USB_HUB_REQ_SET_HUB_DEPTH, depth, ++ 0, 0, NULL); ++} ++ + static grub_usb_err_t + grub_usb_add_hub (grub_usb_device_t dev) + { + struct grub_usb_usb_hubdesc hubdesc; + grub_usb_err_t err; ++ grub_uint16_t req; + int i; + ++ req = (dev->speed == GRUB_USB_SPEED_SUPER) ? GRUB_USB_DESCRIPTOR_SS_HUB : ++ GRUB_USB_DESCRIPTOR_HUB; ++ + err = grub_usb_control_msg (dev, (GRUB_USB_REQTYPE_IN + | GRUB_USB_REQTYPE_CLASS + | GRUB_USB_REQTYPE_TARGET_DEV), +- GRUB_USB_REQ_GET_DESCRIPTOR, +- (GRUB_USB_DESCRIPTOR_HUB << 8) | 0, ++ GRUB_USB_REQ_GET_DESCRIPTOR, ++ (req << 8) | 0, + 0, sizeof (hubdesc), (char *) &hubdesc); + if (err) + return err; +@@ -183,6 +196,19 @@ grub_usb_add_hub (grub_usb_device_t dev) + return GRUB_USB_ERR_INTERNAL; + } + ++ if (dev->speed == GRUB_USB_SPEED_SUPER) ++ { ++ grub_uint8_t depth; ++ grub_uint32_t route; ++ /* Depth maximum value is 5, but root hubs doesn't count */ ++ for (depth = 0, route = dev->route; (route & 0xf) > 0; route >>= 4) ++ depth++; ++ ++ err = grub_usb_set_hub_depth(dev, depth); ++ if (err) ++ return err; ++ } ++ + /* Power on all Hub ports. */ + for (i = 1; i <= hubdesc.portcnt; i++) + { +@@ -637,7 +663,9 @@ poll_nonroot_hub (grub_usb_device_t dev) + int split_hubaddr = 0; + + /* Determine the device speed. */ +- if (status & GRUB_USB_HUB_STATUS_PORT_LOWSPEED) ++ if (dev->speed == GRUB_USB_SPEED_SUPER) ++ speed = GRUB_USB_SPEED_SUPER; ++ else if (status & GRUB_USB_HUB_STATUS_PORT_LOWSPEED) + speed = GRUB_USB_SPEED_LOW; + else + { +@@ -651,7 +679,7 @@ poll_nonroot_hub (grub_usb_device_t dev) + grub_millisleep (10); + + /* Find correct values for SPLIT hubport and hubaddr */ +- if (speed == GRUB_USB_SPEED_HIGH) ++ if (speed == GRUB_USB_SPEED_HIGH || speed == GRUB_USB_SPEED_SUPER) + { + /* HIGH speed device needs not transaction translation */ + split_hubport = 0; +diff --git a/include/grub/usbdesc.h b/include/grub/usbdesc.h +index bb2ab2e27..1697aa465 100644 +--- a/include/grub/usbdesc.h ++++ b/include/grub/usbdesc.h +@@ -30,6 +30,7 @@ typedef enum { + GRUB_USB_DESCRIPTOR_ENDPOINT, + GRUB_USB_DESCRIPTOR_DEBUG = 10, + GRUB_USB_DESCRIPTOR_HUB = 0x29, ++ GRUB_USB_DESCRIPTOR_SS_HUB = 0x2a, + GRUB_USB_DESCRIPTOR_SS_ENDPOINT_COMPANION = 0x30 + } grub_usb_descriptor_t; + +diff --git a/include/grub/usbtrans.h b/include/grub/usbtrans.h +index 039ebed65..d6c3f71dc 100644 +--- a/include/grub/usbtrans.h ++++ b/include/grub/usbtrans.h +@@ -110,6 +110,10 @@ enum + GRUB_USB_REQ_SET_INTERFACE = 0x0B, + GRUB_USB_REQ_SYNC_FRAME = 0x0C + }; ++enum ++ { ++ GRUB_USB_HUB_REQ_SET_HUB_DEPTH = 0x0C, ++ }; + + #define GRUB_USB_FEATURE_ENDP_HALT 0x00 + #define GRUB_USB_FEATURE_DEV_REMOTE_WU 0x01 +-- +2.39.2 + |