On Mon, 9 May 2011, Jan Andersson wrote:
> This patch adds support for universal host controllers that use
> big endian descriptors. Support for BE descriptors requires a non-PCI
> host controller. For kernels with PCI-only UHCI there should be no
> change in behaviour.
>
> This patch tries to replicate the technique used to support BE descriptors
> in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from
> ehci.h. ehci-hcd.h needed to be rearranged due to added dependencies on
> uhci_hcd struct.
...
> diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
> index 04e241f..50aa4a8 100644
> --- a/drivers/usb/host/uhci-hcd.h
> +++ b/drivers/usb/host/uhci-hcd.h
...
> +/*
> + * The UHCI controller and root hub
> + */
> +
> +/*
> + * States for the root hub:
> + *
> + * To prevent "bouncing" in the presence of electrical noise,
> + * when there are no devices attached we delay for 1 second in the
> + * RUNNING_NODEVS state before switching to the AUTO_STOPPED state.
> + *
> + * (Note that the AUTO_STOPPED state won't be necessary once the hub
> + * driver learns to autosuspend.)
> + */
> +enum uhci_rh_state {
...
> @@ -336,138 +542,6 @@ static inline u32 td_status(struct uhci_td *td) {
> #define SKEL_FSBR SKEL_FS_CONTROL
> #define SKEL_BULK 22
>
> -/*
> - * The UHCI controller and root hub
> - */
> -
> -/*
> - * States for the root hub:
> - *
> - * To prevent "bouncing" in the presence of electrical noise,
> - * when there are no devices attached we delay for 1 second in the
> - * RUNNING_NODEVS state before switching to the AUTO_STOPPED state.
> - *
> - * (Note that the AUTO_STOPPED state won't be necessary once the hub
> - * driver learns to autosuspend.)
> - */
> -enum uhci_rh_state {
Why did all this stuff get moved up in the header file?
Alan Stern
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