diff options
Diffstat (limited to 'drivers/net/dsa/microchip/ksz_ptp.h')
-rw-r--r-- | drivers/net/dsa/microchip/ksz_ptp.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz_ptp.h b/drivers/net/dsa/microchip/ksz_ptp.h new file mode 100644 index 0000000000..0ca8ca4f80 --- /dev/null +++ b/drivers/net/dsa/microchip/ksz_ptp.h @@ -0,0 +1,86 @@ +/* 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 ethtool_ts_info *ts); +int ksz_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr); +int ksz_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr); +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 |