linux/drivers/net/ethernet/microchip/sparx5/sparx5_ptp.c

// SPDX-License-Identifier: GPL-2.0+
/* Microchip Sparx5 Switch driver
 *
 * Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries.
 *
 * The Sparx5 Chip Register Model can be browsed at this location:
 * https://github.com/microchip-ung/sparx-5_reginfo
 */
#include <linux/ptp_classify.h>

#include "sparx5_main_regs.h"
#include "sparx5_main.h"

#define SPARX5_MAX_PTP_ID …

#define TOD_ACC_PIN …

enum { … };

static u64 sparx5_ptp_get_1ppm(struct sparx5 *sparx5)
{ … }

static u64 sparx5_ptp_get_nominal_value(struct sparx5 *sparx5)
{ … }

int sparx5_ptp_hwtstamp_set(struct sparx5_port *port,
			    struct kernel_hwtstamp_config *cfg,
			    struct netlink_ext_ack *extack)
{ … }

void sparx5_ptp_hwtstamp_get(struct sparx5_port *port,
			     struct kernel_hwtstamp_config *cfg)
{ … }

static void sparx5_ptp_classify(struct sparx5_port *port, struct sk_buff *skb,
				u8 *rew_op, u8 *pdu_type, u8 *pdu_w16_offset)
{ … }

static void sparx5_ptp_txtstamp_old_release(struct sparx5_port *port)
{ … }

int sparx5_ptp_txtstamp_request(struct sparx5_port *port,
				struct sk_buff *skb)
{ … }

void sparx5_ptp_txtstamp_release(struct sparx5_port *port,
				 struct sk_buff *skb)
{ … }

static void sparx5_get_hwtimestamp(struct sparx5 *sparx5,
				   struct timespec64 *ts,
				   u32 nsec)
{ … }

irqreturn_t sparx5_ptp_irq_handler(int irq, void *args)
{ … }

static int sparx5_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
{ … }

static int sparx5_ptp_settime64(struct ptp_clock_info *ptp,
				const struct timespec64 *ts)
{ … }

int sparx5_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts)
{ … }

static int sparx5_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
{ … }

static struct ptp_clock_info sparx5_ptp_clock_info = …;

static int sparx5_ptp_phc_init(struct sparx5 *sparx5,
			       int index,
			       struct ptp_clock_info *clock_info)
{ … }

int sparx5_ptp_init(struct sparx5 *sparx5)
{ … }

void sparx5_ptp_deinit(struct sparx5 *sparx5)
{ … }

void sparx5_ptp_rxtstamp(struct sparx5 *sparx5, struct sk_buff *skb,
			 u64 timestamp)
{ … }