[deliverable/linux.git] / include / linux / mdio-bitbang.h

#ifndef __LINUX_MDIO_BITBANG_H
#define __LINUX_MDIO_BITBANG_H

#include <linux/phy.h>

struct module;

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
Commit	Line	Data
e2ec4581 SW	1	#ifndef __LINUX_MDIO_BITBANG_H
	2	#define __LINUX_MDIO_BITBANG_H
	3
	4	#include <linux/phy.h>
de477254 PG	5
de477254 PG	6	struct module;
e2ec4581 SW	7
	8	struct mdiobb_ctrl;
	9
	10	struct mdiobb_ops {
	11	struct module *owner;
	12
	13	/* Set the Management Data Clock high if level is one,
	14	* low if level is zero.
	15	*/
	16	void (set_mdc)(struct mdiobb_ctrl ctrl, int level);
	17
	18	/* Configure the Management Data I/O pin as an input if
	19	* "output" is zero, or an output if "output" is one.
	20	*/
	21	void (set_mdio_dir)(struct mdiobb_ctrl ctrl, int output);
	22
	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.
	26	*/
	27	void (set_mdio_data)(struct mdiobb_ctrl ctrl, int value);
	28
	29	/* Retrieve the state Management Data I/O pin. */
	30	int (get_mdio_data)(struct mdiobb_ctrl ctrl);
	31	};
	32
	33	struct mdiobb_ctrl {
	34	const struct mdiobb_ops *ops;
	35	};
	36
	37	/* The returned bus is not yet registered with the phy layer. */
	38	struct mii_bus alloc_mdio_bitbang(struct mdiobb_ctrl ctrl);
	39
	40	/* The bus must already have been unregistered. */
	41	void free_mdio_bitbang(struct mii_bus *bus);
	42
	43	#endif