1 #ifndef __LINUX_MDIO_BITBANG_H
2 #define __LINUX_MDIO_BITBANG_H
13 /* Set the Management Data Clock high if level is one,
14 * low if level is zero.
16 void (*set_mdc)(struct mdiobb_ctrl *ctrl, int level);
18 /* Configure the Management Data I/O pin as an input if
19 * "output" is zero, or an output if "output" is one.
21 void (*set_mdio_dir)(struct mdiobb_ctrl *ctrl, int output);
23 /* Set the Management Data I/O pin high if value is one,
24 * low if "value" is zero. This may only be called
25 * when the MDIO pin is configured as an output.
27 void (*set_mdio_data)(struct mdiobb_ctrl *ctrl, int value);
29 /* Retrieve the state Management Data I/O pin. */
30 int (*get_mdio_data)(struct mdiobb_ctrl *ctrl);
34 const struct mdiobb_ops *ops;
37 /* The returned bus is not yet registered with the phy layer. */
38 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
40 /* The bus must already have been unregistered. */
41 void free_mdio_bitbang(struct mii_bus *bus);