// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2022 Meta Platforms Inc. * Copyright (C) 2022 Jonathan Lemon <[email protected]> */ #include <asm/unaligned.h> #include <linux/mii.h> #include <linux/phy.h> #include <linux/ptp_classify.h> #include <linux/ptp_clock_kernel.h> #include <linux/net_tstamp.h> #include <linux/netdevice.h> #include <linux/workqueue.h> #include "bcm-phy-lib.h" /* IEEE 1588 Expansion registers */ #define SLICE_CTRL … #define SLICE_TX_EN … #define SLICE_RX_EN … #define TX_EVENT_MODE … #define MODE_TX_UPDATE_CF … #define MODE_TX_REPLACE_TS_CF … #define MODE_TX_REPLACE_TS … #define RX_EVENT_MODE … #define MODE_RX_UPDATE_CF … #define MODE_RX_INSERT_TS_48 … #define MODE_RX_INSERT_TS_64 … #define MODE_EVT_SHIFT_SYNC … #define MODE_EVT_SHIFT_DELAY_REQ … #define MODE_EVT_SHIFT_PDELAY_REQ … #define MODE_EVT_SHIFT_PDELAY_RESP … #define MODE_SEL_SHIFT_PORT … #define MODE_SEL_SHIFT_CPU … #define RX_MODE_SEL(sel, evt, act) … #define TX_MODE_SEL(sel, evt, act) … /* needs global TS capture first */ #define TX_TS_CAPTURE … #define TX_TS_CAP_EN … #define RX_TS_CAPTURE … #define RX_TS_CAP_EN … #define TIME_CODE_0 … #define TIME_CODE_1 … #define TIME_CODE_2 … #define TIME_CODE_3 … #define TIME_CODE_4 … #define DPLL_SELECT … #define DPLL_HB_MODE2 … #define SHADOW_CTRL … #define SHADOW_LOAD … #define TIME_CODE_LOAD … #define SYNC_OUT_LOAD … #define NCO_TIME_LOAD … #define FREQ_LOAD … #define INTR_MASK … #define INTR_STATUS … #define INTC_FSYNC … #define INTC_SOP … #define NCO_FREQ_LSB … #define NCO_FREQ_MSB … #define NCO_TIME_0 … #define NCO_TIME_1 … #define NCO_TIME_2_CTRL … #define FREQ_MDIO_SEL … #define SYNC_OUT_0 … #define SYNC_OUT_1 … #define SYNC_OUT_2 … #define SYNC_IN_DIVIDER … #define SYNOUT_TS_0 … #define SYNOUT_TS_1 … #define SYNOUT_TS_2 … #define NSE_CTRL … #define NSE_GMODE_EN … #define NSE_CAPTURE_EN … #define NSE_INIT … #define NSE_CPU_FRAMESYNC … #define NSE_SYNC1_FRAMESYNC … #define NSE_FRAMESYNC_MASK … #define NSE_PEROUT_EN … #define NSE_ONESHOT_EN … #define NSE_SYNC_OUT_MASK … #define TS_READ_CTRL … #define TS_READ_START … #define TS_READ_END … #define HB_REG_0 … #define HB_REG_1 … #define HB_REG_2 … #define HB_REG_3 … #define HB_REG_4 … #define HB_STAT_CTRL … #define HB_READ_START … #define HB_READ_END … #define HB_READ_MASK … #define TS_REG_0 … #define TS_REG_1 … #define TS_REG_2 … #define TS_REG_3 … #define TS_INFO_0 … #define TS_INFO_1 … #define TIMECODE_CTRL … #define TX_TIMECODE_SEL … #define RX_TIMECODE_SEL … #define TIME_SYNC … #define TIME_SYNC_EN … struct bcm_ptp_private { … }; struct bcm_ptp_skb_cb { … }; struct bcm_ptp_capture { … }; #define BCM_SKB_CB(skb) … #define SKB_TS_TIMEOUT … #define BCM_MAX_PULSE_8NS … #define BCM_MAX_PERIOD_8NS … #define BRCM_PHY_MODEL(phydev) … static struct bcm_ptp_private *mii2priv(struct mii_timestamper *mii_ts) { … } static struct bcm_ptp_private *ptp2priv(struct ptp_clock_info *info) { … } static void bcm_ptp_get_framesync_ts(struct phy_device *phydev, struct timespec64 *ts) { … } static u16 bcm_ptp_framesync_disable(struct phy_device *phydev, u16 orig_ctrl) { … } static void bcm_ptp_framesync_restore(struct phy_device *phydev, u16 orig_ctrl) { … } static void bcm_ptp_framesync(struct phy_device *phydev, u16 ctrl) { … } static int bcm_ptp_framesync_ts(struct phy_device *phydev, struct ptp_system_timestamp *sts, struct timespec64 *ts, u16 orig_ctrl) { … } static int bcm_ptp_gettimex(struct ptp_clock_info *info, struct timespec64 *ts, struct ptp_system_timestamp *sts) { … } static int bcm_ptp_settime_locked(struct bcm_ptp_private *priv, const struct timespec64 *ts) { … } static int bcm_ptp_settime(struct ptp_clock_info *info, const struct timespec64 *ts) { … } static int bcm_ptp_adjtime_locked(struct bcm_ptp_private *priv, s64 delta_ns) { … } static int bcm_ptp_adjtime(struct ptp_clock_info *info, s64 delta_ns) { … } /* A 125Mhz clock should adjust 8ns per pulse. * The frequency adjustment base is 0x8000 0000, or 8*2^28. * * Frequency adjustment is * adj = scaled_ppm * 8*2^28 / (10^6 * 2^16) * which simplifies to: * adj = scaled_ppm * 2^9 / 5^6 */ static int bcm_ptp_adjfine(struct ptp_clock_info *info, long scaled_ppm) { … } static bool bcm_ptp_rxtstamp(struct mii_timestamper *mii_ts, struct sk_buff *skb, int type) { … } static bool bcm_ptp_get_tstamp(struct bcm_ptp_private *priv, struct bcm_ptp_capture *capts) { … } static void bcm_ptp_match_tstamp(struct bcm_ptp_private *priv, struct bcm_ptp_capture *capts) { … } static long bcm_ptp_do_aux_work(struct ptp_clock_info *info) { … } static int bcm_ptp_cancel_func(struct bcm_ptp_private *priv) { … } static void bcm_ptp_perout_work(struct work_struct *pin_work) { … } static int bcm_ptp_perout_locked(struct bcm_ptp_private *priv, struct ptp_perout_request *req, int on) { … } static void bcm_ptp_extts_work(struct work_struct *pin_work) { … } static int bcm_ptp_extts_locked(struct bcm_ptp_private *priv, int on) { … } static int bcm_ptp_enable(struct ptp_clock_info *info, struct ptp_clock_request *rq, int on) { … } static int bcm_ptp_verify(struct ptp_clock_info *info, unsigned int pin, enum ptp_pin_function func, unsigned int chan) { … } static const struct ptp_clock_info bcm_ptp_clock_info = …; static void bcm_ptp_txtstamp(struct mii_timestamper *mii_ts, struct sk_buff *skb, int type) { … } static int bcm_ptp_hwtstamp(struct mii_timestamper *mii_ts, struct kernel_hwtstamp_config *cfg, struct netlink_ext_ack *extack) { … } static int bcm_ptp_ts_info(struct mii_timestamper *mii_ts, struct kernel_ethtool_ts_info *ts_info) { … } void bcm_ptp_stop(struct bcm_ptp_private *priv) { … } EXPORT_SYMBOL_GPL(…); void bcm_ptp_config_init(struct phy_device *phydev) { … } EXPORT_SYMBOL_GPL(…); static void bcm_ptp_init(struct bcm_ptp_private *priv) { … } struct bcm_ptp_private *bcm_ptp_probe(struct phy_device *phydev) { … } EXPORT_SYMBOL_GPL(…); MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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