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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2023 Meta Platforms, Inc. and affiliates
* Copyright (c) 2023 Intel and affiliates
*/
#ifndef __DPLL_H__
#define __DPLL_H__
#include <uapi/linux/dpll.h>
#include <linux/device.h>
#include <linux/netlink.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
struct dpll_device;
struct dpll_pin;
struct dpll_device_ops {
int (*mode_get)(const struct dpll_device *dpll, void *dpll_priv,
enum dpll_mode *mode, struct netlink_ext_ack *extack);
int (*lock_status_get)(const struct dpll_device *dpll, void *dpll_priv,
enum dpll_lock_status *status,
struct netlink_ext_ack *extack);
int (*temp_get)(const struct dpll_device *dpll, void *dpll_priv,
s32 *temp, struct netlink_ext_ack *extack);
};
struct dpll_pin_ops {
int (*frequency_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
const u64 frequency,
struct netlink_ext_ack *extack);
int (*frequency_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u64 *frequency, struct netlink_ext_ack *extack);
int (*direction_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
const enum dpll_pin_direction direction,
struct netlink_ext_ack *extack);
int (*direction_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
enum dpll_pin_direction *direction,
struct netlink_ext_ack *extack);
int (*state_on_pin_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *parent_pin,
void *parent_pin_priv,
enum dpll_pin_state *state,
struct netlink_ext_ack *extack);
int (*state_on_dpll_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll,
void *dpll_priv, enum dpll_pin_state *state,
struct netlink_ext_ack *extack);
int (*state_on_pin_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_pin *parent_pin,
void *parent_pin_priv,
const enum dpll_pin_state state,
struct netlink_ext_ack *extack);
int (*state_on_dpll_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll,
void *dpll_priv,
const enum dpll_pin_state state,
struct netlink_ext_ack *extack);
int (*prio_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
u32 *prio, struct netlink_ext_ack *extack);
int (*prio_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
const u32 prio, struct netlink_ext_ack *extack);
int (*phase_offset_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s64 *phase_offset,
struct netlink_ext_ack *extack);
int (*phase_adjust_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s32 *phase_adjust,
struct netlink_ext_ack *extack);
int (*phase_adjust_set)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
const s32 phase_adjust,
struct netlink_ext_ack *extack);
int (*ffo_get)(const struct dpll_pin *pin, void *pin_priv,
const struct dpll_device *dpll, void *dpll_priv,
s64 *ffo, struct netlink_ext_ack *extack);
};
struct dpll_pin_frequency {
u64 min;
u64 max;
};
#define DPLL_PIN_FREQUENCY_RANGE(_min, _max) \
{ \
.min = _min, \
.max = _max, \
}
#define DPLL_PIN_FREQUENCY(_val) DPLL_PIN_FREQUENCY_RANGE(_val, _val)
#define DPLL_PIN_FREQUENCY_1PPS \
DPLL_PIN_FREQUENCY(DPLL_PIN_FREQUENCY_1_HZ)
#define DPLL_PIN_FREQUENCY_10MHZ \
DPLL_PIN_FREQUENCY(DPLL_PIN_FREQUENCY_10_MHZ)
#define DPLL_PIN_FREQUENCY_IRIG_B \
DPLL_PIN_FREQUENCY(DPLL_PIN_FREQUENCY_10_KHZ)
#define DPLL_PIN_FREQUENCY_DCF77 \
DPLL_PIN_FREQUENCY(DPLL_PIN_FREQUENCY_77_5_KHZ)
struct dpll_pin_phase_adjust_range {
s32 min;
s32 max;
};
struct dpll_pin_properties {
const char *board_label;
const char *panel_label;
const char *package_label;
enum dpll_pin_type type;
unsigned long capabilities;
u32 freq_supported_num;
struct dpll_pin_frequency *freq_supported;
struct dpll_pin_phase_adjust_range phase_range;
};
#if IS_ENABLED(CONFIG_DPLL)
void dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin);
void dpll_netdev_pin_clear(struct net_device *dev);
size_t dpll_netdev_pin_handle_size(const struct net_device *dev);
int dpll_netdev_add_pin_handle(struct sk_buff *msg,
const struct net_device *dev);
#else
static inline void
dpll_netdev_pin_set(struct net_device *dev, struct dpll_pin *dpll_pin) { }
static inline void dpll_netdev_pin_clear(struct net_device *dev) { }
static inline size_t dpll_netdev_pin_handle_size(const struct net_device *dev)
{
return 0;
}
static inline int
dpll_netdev_add_pin_handle(struct sk_buff *msg, const struct net_device *dev)
{
return 0;
}
#endif
struct dpll_device *
dpll_device_get(u64 clock_id, u32 dev_driver_id, struct module *module);
void dpll_device_put(struct dpll_device *dpll);
int dpll_device_register(struct dpll_device *dpll, enum dpll_type type,
const struct dpll_device_ops *ops, void *priv);
void dpll_device_unregister(struct dpll_device *dpll,
const struct dpll_device_ops *ops, void *priv);
struct dpll_pin *
dpll_pin_get(u64 clock_id, u32 dev_driver_id, struct module *module,
const struct dpll_pin_properties *prop);
int dpll_pin_register(struct dpll_device *dpll, struct dpll_pin *pin,
const struct dpll_pin_ops *ops, void *priv);
void dpll_pin_unregister(struct dpll_device *dpll, struct dpll_pin *pin,
const struct dpll_pin_ops *ops, void *priv);
void dpll_pin_put(struct dpll_pin *pin);
int dpll_pin_on_pin_register(struct dpll_pin *parent, struct dpll_pin *pin,
const struct dpll_pin_ops *ops, void *priv);
void dpll_pin_on_pin_unregister(struct dpll_pin *parent, struct dpll_pin *pin,
const struct dpll_pin_ops *ops, void *priv);
int dpll_device_change_ntf(struct dpll_device *dpll);
int dpll_pin_change_ntf(struct dpll_pin *pin);
#endif
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