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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253/* SPDX-License-Identifier: GPL-2.0 */#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; unsigned int override_op_c22; u8 op_c22_read; u8 op_c22_write;};
int mdiobb_read_c22(struct mii_bus *bus, int phy, int reg);int mdiobb_write_c22(struct mii_bus *bus, int phy, int reg, u16 val);int mdiobb_read_c45(struct mii_bus *bus, int devad, int phy, int reg);int mdiobb_write_c45(struct mii_bus *bus, int devad, int phy, int reg, u16 val);
/* 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