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/* SPDX-License-Identifier: GPL-2.0 */
/* Microchip KSZ PTP Implementation
*
* Copyright (C) 2020 ARRI Lighting
* Copyright (C) 2022 Microchip Technology Inc.
*/
#ifndef _NET_DSA_DRIVERS_KSZ_PTP_H
#define _NET_DSA_DRIVERS_KSZ_PTP_H
#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_PTP)
#include <linux/ptp_clock_kernel.h>
#define KSZ_PTP_N_GPIO 2
enum ksz_ptp_tou_mode {
KSZ_PTP_TOU_IDLE,
KSZ_PTP_TOU_PEROUT,
};
struct ksz_ptp_data {
struct ptp_clock_info caps;
struct ptp_clock *clock;
struct ptp_pin_desc pin_config[KSZ_PTP_N_GPIO];
/* Serializes all operations on the PTP hardware clock */
struct mutex lock;
/* lock for accessing the clock_time */
spinlock_t clock_lock;
struct timespec64 clock_time;
enum ksz_ptp_tou_mode tou_mode;
struct timespec64 perout_target_time_first; /* start of first pulse */
struct timespec64 perout_period;
};
int ksz_ptp_clock_register(struct dsa_switch *ds);
void ksz_ptp_clock_unregister(struct dsa_switch *ds);
int ksz_get_ts_info(struct dsa_switch *ds, int port,
struct kernel_ethtool_ts_info *ts);
int ksz_hwtstamp_get(struct dsa_switch *ds, int port,
struct kernel_hwtstamp_config *config);
int ksz_hwtstamp_set(struct dsa_switch *ds, int port,
struct kernel_hwtstamp_config *config,
struct netlink_ext_ack *extack);
void ksz_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
void ksz_port_deferred_xmit(struct kthread_work *work);
bool ksz_port_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb,
unsigned int type);
int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p);
void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p);
#else
struct ksz_ptp_data {
/* Serializes all operations on the PTP hardware clock */
struct mutex lock;
};
static inline int ksz_ptp_clock_register(struct dsa_switch *ds)
{
return 0;
}
static inline void ksz_ptp_clock_unregister(struct dsa_switch *ds) { }
static inline int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p)
{
return 0;
}
static inline void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p) {}
#define ksz_get_ts_info NULL
#define ksz_hwtstamp_get NULL
#define ksz_hwtstamp_set NULL
#define ksz_port_rxtstamp NULL
#define ksz_port_txtstamp NULL
#define ksz_port_deferred_xmit NULL
#endif /* End of CONFIG_NET_DSA_MICROCHIP_KSZ_PTP */
#endif
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