// SPDX-License-Identifier: GPL-2.0-only

#ifndef _LINUX_PSE_CONTROLLER_H
#define _LINUX_PSE_CONTROLLER_H

#include <linux/ethtool.h>
#include <linux/list.h>
#include <uapi/linux/ethtool.h>

struct phy_device;
struct pse_controller_dev;


struct pse_control_config {
	enum ethtool_podl_pse_admin_state admin_cotrol;
};


struct pse_control_status {
	enum ethtool_podl_pse_admin_state podl_admin_state;
	enum ethtool_podl_pse_pw_d_status podl_pw_status;
};


struct pse_controller_ops {
	int (*ethtool_get_status)(struct pse_controller_dev *pcdev,
		unsigned long id, struct netlink_ext_ack *extack,
		struct pse_control_status *status);
	int (*ethtool_set_config)(struct pse_controller_dev *pcdev,
		unsigned long id, struct netlink_ext_ack *extack,
		const struct pse_control_config *config);
};

struct module;
struct device_node;
struct of_phandle_args;
struct pse_control;


struct pse_controller_dev {
	const struct pse_controller_ops *ops;
	struct module *owner;
	struct list_head list;
	struct list_head pse_control_head;
	struct device *dev;
	int of_pse_n_cells;
	int (*of_xlate)(struct pse_controller_dev *pcdev,
			const struct of_phandle_args *pse_spec);
	unsigned int nr_lines;
	struct mutex lock;
};

#if IS_ENABLED(CONFIG_PSE_CONTROLLER)
int pse_controller_register(struct pse_controller_dev *pcdev);
void pse_controller_unregister(struct pse_controller_dev *pcdev);
struct device;
int devm_pse_controller_register(struct device *dev,
				 struct pse_controller_dev *pcdev);

struct pse_control *of_pse_control_get(struct device_node *node);
void pse_control_put(struct pse_control *psec);

int pse_ethtool_get_status(struct pse_control *psec,
			   struct netlink_ext_ack *extack,
			   struct pse_control_status *status);
int pse_ethtool_set_config(struct pse_control *psec,
			   struct netlink_ext_ack *extack,
			   const struct pse_control_config *config);

#else

static inline struct pse_control *of_pse_control_get(struct device_node *node)
{
	return ERR_PTR(-ENOENT);
}

static inline void pse_control_put(struct pse_control *psec)
{
}

static inline int pse_ethtool_get_status(struct pse_control *psec,
					 struct netlink_ext_ack *extack,
					 struct pse_control_status *status)
{
	return -EOPNOTSUPP;
}

static inline int pse_ethtool_set_config(struct pse_control *psec,
					 struct netlink_ext_ack *extack,
					 const struct pse_control_config *config)
{
	return -EOPNOTSUPP;
}

#endif

#endif
