include/linux/usb/phy_companion.h

   1 /*
   2  * phy-companion.h -- phy companion to indicate the comparator part of PHY
   3  *
   4  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Author: Kishon Vijay Abraham I <kishon@ti.com>
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #ifndef __DRIVERS_PHY_COMPANION_H
  20 #define __DRIVERS_PHY_COMPANION_H
  21
  22 #include <linux/usb/otg.h>
  23
  24 /* phy_companion to take care of VBUS, ID and srp capabilities */
  25 struct phy_companion {
  26
  27         /* effective for A-peripheral, ignored for B devices */
  28         int     (*set_vbus)(struct phy_companion *x, bool enabled);
  29
  30         /* for B devices only:  start session with A-Host */
  31         int     (*start_srp)(struct phy_companion *x);
  32 };
  33
  34 #endif /* __DRIVERS_PHY_COMPANION_H */