> > So, the others are usb_state not usb_otg_state. Then, when we
> generalize
> > otg driver, what kinds of **states** do you plan to use to stand for
> otg
> > state machine? Besides, if we name something different with spec, does
> it
> > will confuse the users?
>
> We could have just a single enum usb_state defined something like:
>
> enum usb_otg_state {
> USB_STATE_UNDEFINED = 0,
>
> /* single-role peripheral, and dual-role default-b */
> USB_STATE_B_IDLE,
> USB_STATE_B_SRP_INIT,
> USB_STATE_B_PERIPHERAL,
>
> /* single-role host, and dual-role default-a */
> USB_STATE_A_IDLE,
> USB_STATE_A_WAIT_VRISE,
> USB_STATE_A_WAIT_BCON,
> USB_STATE_A_HOST,
> USB_STATE_A_SUSPEND,
> USB_STATE_A_WAIT_VFALL,
> USB_STATE_A_VBUS_ERR,
>
> #ifdef CONFIG_USB_OTG
> /* extra dual-role default-b states */
> USB_STATE_B_WAIT_ACON,
> USB_STATE_B_HOST,
> USB_STATE_A_PERIPHERAL,
> #endif /* CONFIG_USB_OTG
> };
>
> or something similar. Then we shouldn't allow anyone to access
> phy->state directly, so we would need:
>
> static inline void usb_phy_set_state(struct usb_phy *phy,
> enum usb_state state)
> {
> phy->state = state;
> }
>
> static inline enum usb_state usb_phy_get_state(struct usb_phy *phy)
> {
> return phy->state;
> }
>
Then, at later general OTG driver, we need to know struct usb_phy *phy,
but how can we get it at OTG driver?
I am a little confused by using phy->state to stand for usb_state that I think
there is no relationship between usb_state with USB PHY.
> --
> balbi
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