/* 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 <[email protected]> * Kamil Alkhouri <[email protected]> */ #ifndef _HELLCREEK_PTP_H_ #define _HELLCREEK_PTP_H_ #include <linux/bitops.h> #include <linux/ptp_clock_kernel.h> #include "hellcreek.h" /* Every jump in time is 7 ns */ #define MAX_NS_PER_STEP … /* Correct offset at every clock cycle */ #define MIN_CLK_CYCLES_BETWEEN_STEPS … /* Maximum available slow offset resources */ #define MAX_SLOW_OFFSET_ADJ … /* four times a second overflow check */ #define HELLCREEK_OVERFLOW_PERIOD … /* PTP Register */ #define PR_SETTINGS_C … #define PR_SETTINGS_C_RES3TS … #define PR_SETTINGS_C_TS_SRC_TK_SHIFT … #define PR_SETTINGS_C_TS_SRC_TK_MASK … #define PR_COMMAND_C … #define PR_COMMAND_C_SS … #define PR_CLOCK_STATUS_C … #define PR_CLOCK_STATUS_C_ENA_DRIFT … #define PR_CLOCK_STATUS_C_OFS_ACT … #define PR_CLOCK_STATUS_C_ENA_OFS … #define PR_CLOCK_READ_C … #define PR_CLOCK_WRITE_C … #define PR_CLOCK_OFFSET_C … #define PR_CLOCK_DRIFT_C … #define PR_SS_FREE_DATA_C … #define PR_SS_SYNT_DATA_C … #define PR_SS_SYNC_DATA_C … #define PR_SS_DRAC_DATA_C … #define STATUS_OUT … #define STATUS_OUT_SYNC_GOOD … #define STATUS_OUT_IS_GM … int hellcreek_ptp_setup(struct hellcreek *hellcreek); void hellcreek_ptp_free(struct hellcreek *hellcreek); u16 hellcreek_ptp_read(struct hellcreek *hellcreek, unsigned int offset); void hellcreek_ptp_write(struct hellcreek *hellcreek, u16 data, unsigned int offset); u64 hellcreek_ptp_gettime_seconds(struct hellcreek *hellcreek, u64 ns); #define ptp_to_hellcreek(ptp) … #define dw_overflow_to_hellcreek(dw) … #define led_to_hellcreek(ldev, led) … #endif /* _HELLCREEK_PTP_H_ */
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