> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Wu, Hao
> A
> Sent: Friday, January 22, 2021 9:17 AM
> To: devel@edk2.groups.io; patrick.rudo...@9elements.com
> Cc: Wang, Jian J <jian.j.w...@intel.com>; Ni, Ray <ray...@intel.com>
> Subject: Re: [edk2-devel] [PATCH 1/2] MdeModulePkg/Usb/Keyboard.c:
> remove Get/SetConfig calls
>
> Sorry, please grant me some time for this patch series. I will try to provide
> feedbacks before end of next week.
> Meanwhile, could you help to provide the information on what kind of tests
> have been performed for these 2 patches? Thanks in advance.
>
> Best Regards,
> Hao Wu
>
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Patrick
> > Rudolph
> > Sent: Wednesday, January 20, 2021 11:59 PM
> > To: devel@edk2.groups.io
> > Cc: Wang, Jian J <jian.j.w...@intel.com>; Wu, Hao A
> > <hao.a...@intel.com>; Ni, Ray <ray...@intel.com>
> > Subject: [edk2-devel] [PATCH 1/2] MdeModulePkg/Usb/Keyboard.c:
> > remove Get/SetConfig calls
> >
> > From: Matt DeVillier <matt.devill...@gmail.com>
> >
> > SetConfig is already called during device enumeration, no need to do
> > it again here.
I found that the InitUSBKeyboard() function, which includes this Get/SetConfig
calls, is triggered during the keyboard reset flow. Even though the
configuration for the keyboard will be set during enumeration, I think it would
be better to keep this reconfiguration in the reset flow.
Best Regards,
Hao Wu
> >
> > Signed-off-by: Matt DeVillier <matt.devill...@gmail.com>
> > ---
> > MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c | 37 --------------------
> > 1 file changed, 37 deletions(-)
> >
> > diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
> > b/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
> > index 5faf82ea57..77e20b203f 100644
> > --- a/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
> > +++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/KeyBoard.c
> > @@ -801,10 +801,8 @@ InitUSBKeyboard (
> > IN OUT USB_KB_DEV *UsbKeyboardDevice
> >
> > )
> >
> > {
> >
> > - UINT16 ConfigValue;
> >
> > UINT8 Protocol;
> >
> > EFI_STATUS Status;
> >
> > - UINT32 TransferResult;
> >
> >
> >
> > REPORT_STATUS_CODE_WITH_DEVICE_PATH (
> >
> > EFI_PROGRESS_CODE,
> >
> > @@ -816,41 +814,6 @@ InitUSBKeyboard (
> > InitQueue (&UsbKeyboardDevice->EfiKeyQueue, sizeof (EFI_KEY_DATA));
> >
> > InitQueue (&UsbKeyboardDevice->EfiKeyQueueForNotify, sizeof
> > (EFI_KEY_DATA));
> >
> >
> >
> > - //
> >
> > - // Use the config out of the descriptor
> >
> > - // Assumed the first config is the correct one and this is not
> > always the case
> >
> > - //
> >
> > - Status = UsbGetConfiguration (
> >
> > - UsbKeyboardDevice->UsbIo,
> >
> > - &ConfigValue,
> >
> > - &TransferResult
> >
> > - );
> >
> > - if (EFI_ERROR (Status)) {
> >
> > - ConfigValue = 0x01;
> >
> > - //
> >
> > - // Uses default configuration to configure the USB Keyboard device.
> >
> > - //
> >
> > - Status = UsbSetConfiguration (
> >
> > - UsbKeyboardDevice->UsbIo,
> >
> > - ConfigValue,
> >
> > - &TransferResult
> >
> > - );
> >
> > - if (EFI_ERROR (Status)) {
> >
> > - //
> >
> > - // If configuration could not be set here, it means
> >
> > - // the keyboard interface has some errors and could
> >
> > - // not be initialized
> >
> > - //
> >
> > - REPORT_STATUS_CODE_WITH_DEVICE_PATH (
> >
> > - EFI_ERROR_CODE | EFI_ERROR_MINOR,
> >
> > - (EFI_PERIPHERAL_KEYBOARD | EFI_P_EC_INTERFACE_ERROR),
> >
> > - UsbKeyboardDevice->DevicePath
> >
> > - );
> >
> > -
> >
> > - return EFI_DEVICE_ERROR;
> >
> > - }
> >
> > - }
> >
> > -
> >
> > UsbGetProtocolRequest (
> >
> > UsbKeyboardDevice->UsbIo,
> >
> > UsbKeyboardDevice->InterfaceDescriptor.InterfaceNumber,
> >
> > --
> > 2.26.2
> >
> >
> >
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