include/linux/mdio-mux.h

   1 /*
   2  * MDIO bus multiplexer framwork.
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 2011, 2012 Cavium, Inc.
   9  */
  10 #ifndef __LINUX_MDIO_MUX_H
  11 #define __LINUX_MDIO_MUX_H
  12 #include <linux/device.h>
  13 #include <linux/phy.h>
  14
  15 /* mdio_mux_init() - Initialize a MDIO mux
  16  * @dev         The device owning the MDIO mux
  17  * @mux_node    The device node of the MDIO mux
  18  * @switch_fn   The function called for switching target MDIO child
  19  * mux_handle   A pointer to a (void *) used internaly by mdio-mux
  20  * @data        Private data used by switch_fn()
  21  * @mux_bus     An optional parent bus (Other case are to use parent_bus property)
  22  */
  23 int mdio_mux_init(struct device *dev,
  24                   struct device_node *mux_node,
  25                   int (*switch_fn) (int cur, int desired, void *data),
  26                   void **mux_handle,
  27                   void *data,
  28                   struct mii_bus *mux_bus);
  29
  30 void mdio_mux_uninit(void *mux_handle);
  31
  32 #endif /* __LINUX_MDIO_MUX_H */