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1/* SPDX-License-Identifier: GPL-2.0 */2/* Microchip KSZ PTP Implementation3 *4 * Copyright (C) 2020 ARRI Lighting5 * Copyright (C) 2022 Microchip Technology Inc.6 */7 8#ifndef _NET_DSA_DRIVERS_KSZ_PTP_H9#define _NET_DSA_DRIVERS_KSZ_PTP_H10 11#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_PTP)12 13#include <linux/ptp_clock_kernel.h>14 15#define KSZ_PTP_N_GPIO 216 17enum ksz_ptp_tou_mode {18 KSZ_PTP_TOU_IDLE,19 KSZ_PTP_TOU_PEROUT,20};21 22struct ksz_ptp_data {23 struct ptp_clock_info caps;24 struct ptp_clock *clock;25 struct ptp_pin_desc pin_config[KSZ_PTP_N_GPIO];26 /* Serializes all operations on the PTP hardware clock */27 struct mutex lock;28 /* lock for accessing the clock_time */29 spinlock_t clock_lock;30 struct timespec64 clock_time;31 enum ksz_ptp_tou_mode tou_mode;32 struct timespec64 perout_target_time_first; /* start of first pulse */33 struct timespec64 perout_period;34};35 36int ksz_ptp_clock_register(struct dsa_switch *ds);37 38void ksz_ptp_clock_unregister(struct dsa_switch *ds);39 40int ksz_get_ts_info(struct dsa_switch *ds, int port,41 struct kernel_ethtool_ts_info *ts);42int ksz_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);43int ksz_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);44void ksz_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);45void ksz_port_deferred_xmit(struct kthread_work *work);46bool ksz_port_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb,47 unsigned int type);48int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p);49void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p);50 51#else52 53struct ksz_ptp_data {54 /* Serializes all operations on the PTP hardware clock */55 struct mutex lock;56};57 58static inline int ksz_ptp_clock_register(struct dsa_switch *ds)59{60 return 0;61}62 63static inline void ksz_ptp_clock_unregister(struct dsa_switch *ds) { }64 65static inline int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p)66{67 return 0;68}69 70static inline void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p) {}71 72#define ksz_get_ts_info NULL73 74#define ksz_hwtstamp_get NULL75 76#define ksz_hwtstamp_set NULL77 78#define ksz_port_rxtstamp NULL79 80#define ksz_port_txtstamp NULL81 82#define ksz_port_deferred_xmit NULL83 84#endif /* End of CONFIG_NET_DSA_MICROCHIP_KSZ_PTP */85 86#endif87