Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* 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
|