1 #ifndef __LINUX_MDIO_BITBANG_H
2 #define __LINUX_MDIO_BITBANG_H
5 #include <linux/module.h>
12 /* Set the Management Data Clock high if level is one,
13 * low if level is zero.
15 void (*set_mdc)(struct mdiobb_ctrl *ctrl, int level);
17 /* Configure the Management Data I/O pin as an input if
18 * "output" is zero, or an output if "output" is one.
20 void (*set_mdio_dir)(struct mdiobb_ctrl *ctrl, int output);
22 /* Set the Management Data I/O pin high if value is one,
23 * low if "value" is zero. This may only be called
24 * when the MDIO pin is configured as an output.
26 void (*set_mdio_data)(struct mdiobb_ctrl *ctrl, int value);
28 /* Retrieve the state Management Data I/O pin. */
29 int (*get_mdio_data)(struct mdiobb_ctrl *ctrl);
33 const struct mdiobb_ops *ops;
36 /* The returned bus is not yet registered with the phy layer. */
37 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
39 /* The bus must already have been unregistered. */
40 void free_mdio_bitbang(struct mii_bus *bus);