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- #ifndef __LINUX_MDIO_BITBANG_H
- #define __LINUX_MDIO_BITBANG_H
-
- #include <linux/phy.h>
- #include <linux/module.h>
-
- struct mdiobb_ctrl;
-
- struct mdiobb_ops {
- struct module *owner;
-
- /* Set the Management Data Clock high if level is one,
- * low if level is zero.
- */
- void (*set_mdc)(struct mdiobb_ctrl *ctrl, int level);
-
- /* Configure the Management Data I/O pin as an input if
- * "output" is zero, or an output if "output" is one.
- */
- void (*set_mdio_dir)(struct mdiobb_ctrl *ctrl, int output);
-
- /* Set the Management Data I/O pin high if value is one,
- * low if "value" is zero. This may only be called
- * when the MDIO pin is configured as an output.
- */
- void (*set_mdio_data)(struct mdiobb_ctrl *ctrl, int value);
-
- /* Retrieve the state Management Data I/O pin. */
- int (*get_mdio_data)(struct mdiobb_ctrl *ctrl);
- };
-
- struct mdiobb_ctrl {
- const struct mdiobb_ops *ops;
- };
-
- /* The returned bus is not yet registered with the phy layer. */
- struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
-
- /* The bus must already have been unregistered. */
- void free_mdio_bitbang(struct mii_bus *bus);
-
- #endif
-