Linux 4.6-rc6
[cris-mirror.git] / include / linux / mdio-bitbang.h
blob76f52bbbb2f430b822524b4e60ef90fa05a4f476
1 #ifndef __LINUX_MDIO_BITBANG_H
2 #define __LINUX_MDIO_BITBANG_H
4 #include <linux/phy.h>
6 struct module;
8 struct mdiobb_ctrl;
10 struct mdiobb_ops {
11 struct module *owner;
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);
33 struct mdiobb_ctrl {
34 const struct mdiobb_ops *ops;
35 /* reset callback */
36 int (*reset)(struct mii_bus *bus);
39 /* The returned bus is not yet registered with the phy layer. */
40 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);
42 /* The bus must already have been unregistered. */
43 void free_mdio_bitbang(struct mii_bus *bus);
45 #endif