343d3bd87a
There are two programmable pins available for Trigger output unit to generate periodic pulses. This patch add verify_pin for the available 2 pins and configure it with respect to GPIO index for the TOU unit. Tested using testptp ./testptp -i 0 -L 0,2 ./testptp -i 0 -d /dev/ptp0 -p 1000000000 ./testptp -i 1 -L 1,2 ./testptp -i 1 -d /dev/ptp0 -p 100000000 Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Microchip KSZ PTP Implementation
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*
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* Copyright (C) 2020 ARRI Lighting
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* Copyright (C) 2022 Microchip Technology Inc.
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*/
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#ifndef _NET_DSA_DRIVERS_KSZ_PTP_H
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#define _NET_DSA_DRIVERS_KSZ_PTP_H
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#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_PTP)
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#include <linux/ptp_clock_kernel.h>
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#define KSZ_PTP_N_GPIO 2
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enum ksz_ptp_tou_mode {
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KSZ_PTP_TOU_IDLE,
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KSZ_PTP_TOU_PEROUT,
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};
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struct ksz_ptp_data {
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struct ptp_clock_info caps;
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struct ptp_clock *clock;
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struct ptp_pin_desc pin_config[KSZ_PTP_N_GPIO];
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/* Serializes all operations on the PTP hardware clock */
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struct mutex lock;
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/* lock for accessing the clock_time */
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spinlock_t clock_lock;
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struct timespec64 clock_time;
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enum ksz_ptp_tou_mode tou_mode;
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struct timespec64 perout_target_time_first; /* start of first pulse */
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struct timespec64 perout_period;
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};
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int ksz_ptp_clock_register(struct dsa_switch *ds);
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void ksz_ptp_clock_unregister(struct dsa_switch *ds);
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int ksz_get_ts_info(struct dsa_switch *ds, int port,
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struct ethtool_ts_info *ts);
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int ksz_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);
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int ksz_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);
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void ksz_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
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void ksz_port_deferred_xmit(struct kthread_work *work);
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bool ksz_port_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb,
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unsigned int type);
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int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p);
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void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p);
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#else
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struct ksz_ptp_data {
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/* Serializes all operations on the PTP hardware clock */
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struct mutex lock;
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};
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static inline int ksz_ptp_clock_register(struct dsa_switch *ds)
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{
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return 0;
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}
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static inline void ksz_ptp_clock_unregister(struct dsa_switch *ds) { }
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static inline int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p)
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{
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return 0;
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}
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static inline void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p) {}
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#define ksz_get_ts_info NULL
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#define ksz_hwtstamp_get NULL
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#define ksz_hwtstamp_set NULL
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#define ksz_port_rxtstamp NULL
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#define ksz_port_txtstamp NULL
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#define ksz_port_deferred_xmit NULL
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#endif /* End of CONFIG_NET_DSA_MICROCHIP_KSZ_PTP */
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#endif
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