otg.h

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#ifndef __LINUX_USB_OTG_H__
#define __LINUX_USB_OTG_H__
 
#include <linux/usb/ch9.h>
 
#define OTG_VERSION_1_3 0x0130
#define OTG_VERSION_2_0 0x0200
 
enum usb_dr_mode {
    USB_DR_MODE_UNKNOWN,
    USB_DR_MODE_HOST,
    USB_DR_MODE_PERIPHERAL,
    USB_DR_MODE_OTG,
};
 
struct usb_otg_caps {
    u16 otg_rev;
    bool hnp_support;
    bool srp_support;
    bool adp_support;
};
 
enum usb_otg_state {
    OTG_STATE_UNDEFINED = 0,
    OTG_STATE_B_IDLE,
    OTG_STATE_B_SRP_INIT,
    OTG_STATE_B_PERIPHERAL,
    OTG_STATE_B_WAIT_ACON,
    OTG_STATE_B_HOST,
    OTG_STATE_A_IDLE,
    OTG_STATE_A_WAIT_VRISE,
    OTG_STATE_A_WAIT_BCON,
    OTG_STATE_A_HOST,
    OTG_STATE_A_SUSPEND,
    OTG_STATE_A_PERIPHERAL,
    OTG_STATE_A_WAIT_VFAIL,
    OTG_STATE_A_VBUS_ERR,
};
 
struct usb_otg {
    u8 default_a;
    struct usb_phy* phy;
    struct usb_bus* host;
    struct usb_gadget* gadget;
    enum usb_otg_state state;
 
    int (*set_host)(struct usb_otg* otg, struct usb_bus* host);
 
};
 
#endif