From: Abner Chang <abner.chang@amd.com>
Initialize XHCI DCI slot's context entries value.
Signed-off-by: Kuei-Hung Lin <Kuei-Hung.Lin@amd.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Garrett Kirkendall <garrett.kirkendall@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
---
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 6 ++++++
MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c | 6 ++++++
2 files changed, 12 insertions(+)
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index 13b0400e83d..fecc19c50dc 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -2807,6 +2807,9 @@ XhcInitializeEndpointContext (
MaxDci = 0;
NumEp = IfDesc->NumEndpoints;
+ if (NumEp == 0) {
+ MaxDci = 1;
+ }
EpDesc = (USB_ENDPOINT_DESCRIPTOR *)(IfDesc + 1);
for (EpIndex = 0; EpIndex < NumEp; EpIndex++) {
@@ -3006,6 +3009,9 @@ XhcInitializeEndpointContext64 (
MaxDci = 0;
NumEp = IfDesc->NumEndpoints;
+ if (NumEp == 0) {
+ MaxDci = 1;
+ }
EpDesc = (USB_ENDPOINT_DESCRIPTOR *)(IfDesc + 1);
for (EpIndex = 0; EpIndex < NumEp; EpIndex++) {
diff --git a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
index cc597a43717..f2eaf0a4b73 100644
--- a/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciPei/XhciSched.c
@@ -1752,6 +1752,9 @@ XhcPeiSetConfigCmd (
}
NumEp = IfDesc->NumEndpoints;
+ if ((NumEp == 0) && (MaxDci == 0)) {
+ MaxDci = 1;
+ }
EpDesc = (USB_ENDPOINT_DESCRIPTOR *)(IfDesc + 1);
for (EpIndex = 0; EpIndex < NumEp; EpIndex++) {
@@ -1974,6 +1977,9 @@ XhcPeiSetConfigCmd64 (
}
NumEp = IfDesc->NumEndpoints;
+ if ((NumEp == 0) && (MaxDci == 0)) {
+ MaxDci = 1;
+ }
EpDesc = (USB_ENDPOINT_DESCRIPTOR *)(IfDesc + 1);
for (EpIndex = 0; EpIndex < NumEp; EpIndex++) {
--
2.37.1.windows.1
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