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/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ /* * DSA driver for: * Hirschmann Hellcreek TSN switch. * * Copyright (C) 2019,2020 Hochschule Offenburg * Copyright (C) 2019,2020 Linutronix GmbH * Authors: Kurt Kanzenbach <kurt@linutronix.de> * Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de> */ #ifndef _HELLCREEK_HWTSTAMP_H_ #define _HELLCREEK_HWTSTAMP_H_ #include <net/dsa.h> #include "hellcreek.h" /* Timestamp Register */ #define PR_TS_RX_P1_STATUS_C (0x1d * 2) #define PR_TS_RX_P1_DATA_C (0x1e * 2) #define PR_TS_TX_P1_STATUS_C (0x1f * 2) #define PR_TS_TX_P1_DATA_C (0x20 * 2) #define PR_TS_RX_P2_STATUS_C (0x25 * 2) #define PR_TS_RX_P2_DATA_C (0x26 * 2) #define PR_TS_TX_P2_STATUS_C (0x27 * 2) #define PR_TS_TX_P2_DATA_C (0x28 * 2) #define PR_TS_STATUS_TS_AVAIL BIT(2) #define PR_TS_STATUS_TS_LOST BIT(3) #define SKB_PTP_TYPE(__skb) (*(unsigned int *)((__skb)->cb)) /* TX_TSTAMP_TIMEOUT: This limits the time spent polling for a TX * timestamp. When working properly, hardware will produce a timestamp * within 1ms. Software may enounter delays, so the timeout is set * accordingly. */ #define TX_TSTAMP_TIMEOUT msecs_to_jiffies(40) int hellcreek_port_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr); int hellcreek_port_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr); bool hellcreek_port_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *clone, unsigned int type); void hellcreek_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb); int hellcreek_get_ts_info(struct dsa_switch *ds, int port, struct ethtool_ts_info *info); long hellcreek_hwtstamp_work(struct ptp_clock_info *ptp); int hellcreek_hwtstamp_setup(struct hellcreek *chip); void hellcreek_hwtstamp_free(struct hellcreek *chip); #endif /* _HELLCREEK_HWTSTAMP_H_ */ |