75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0+ */
|
||
|
|
/* Copyright (C) 2018 Microchip Technology Inc. */
|
||
|
|
|
||
|
|
#ifndef _LAN743X_PTP_H
|
||
|
|
#define _LAN743X_PTP_H
|
||
|
|
|
||
|
|
#include "linux/ptp_clock_kernel.h"
|
||
|
|
#include "linux/netdevice.h"
|
||
|
|
|
||
|
|
struct lan743x_adapter;
|
||
|
|
|
||
|
|
/* GPIO */
|
||
|
|
struct lan743x_gpio {
|
||
|
|
/* gpio_lock: used to prevent concurrent access to gpio settings */
|
||
|
|
spinlock_t gpio_lock;
|
||
|
|
|
||
|
|
int used_bits;
|
||
|
|
int output_bits;
|
||
|
|
int ptp_bits;
|
||
|
|
u32 gpio_cfg0;
|
||
|
|
u32 gpio_cfg1;
|
||
|
|
u32 gpio_cfg2;
|
||
|
|
u32 gpio_cfg3;
|
||
|
|
};
|
||
|
|
|
||
|
|
int lan743x_gpio_init(struct lan743x_adapter *adapter);
|
||
|
|
|
||
|
|
void lan743x_ptp_isr(void *context);
|
||
|
|
bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
|
||
|
|
void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
|
||
|
|
void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
|
||
|
|
struct sk_buff *skb, bool ignore_sync);
|
||
|
|
int lan743x_ptp_init(struct lan743x_adapter *adapter);
|
||
|
|
int lan743x_ptp_open(struct lan743x_adapter *adapter);
|
||
|
|
void lan743x_ptp_close(struct lan743x_adapter *adapter);
|
||
|
|
void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
|
||
|
|
u32 link_speed);
|
||
|
|
|
||
|
|
int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
|
||
|
|
|
||
|
|
#define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
|
||
|
|
|
||
|
|
#define PTP_FLAG_PTP_CLOCK_REGISTERED BIT(1)
|
||
|
|
#define PTP_FLAG_ISR_ENABLED BIT(2)
|
||
|
|
|
||
|
|
struct lan743x_ptp {
|
||
|
|
int flags;
|
||
|
|
|
||
|
|
/* command_lock: used to prevent concurrent ptp commands */
|
||
|
|
struct mutex command_lock;
|
||
|
|
|
||
|
|
struct ptp_clock *ptp_clock;
|
||
|
|
struct ptp_clock_info ptp_clock_info;
|
||
|
|
struct ptp_pin_desc pin_config[1];
|
||
|
|
|
||
|
|
#define LAN743X_PTP_NUMBER_OF_EVENT_CHANNELS (2)
|
||
|
|
unsigned long used_event_ch;
|
||
|
|
|
||
|
|
int perout_event_ch;
|
||
|
|
int perout_gpio_bit;
|
||
|
|
|
||
|
|
/* tx_ts_lock: used to prevent concurrent access to timestamp arrays */
|
||
|
|
spinlock_t tx_ts_lock;
|
||
|
|
int pending_tx_timestamps;
|
||
|
|
struct sk_buff *tx_ts_skb_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
|
||
|
|
unsigned int tx_ts_ignore_sync_queue;
|
||
|
|
int tx_ts_skb_queue_size;
|
||
|
|
u32 tx_ts_seconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
|
||
|
|
u32 tx_ts_nseconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
|
||
|
|
u32 tx_ts_header_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
|
||
|
|
int tx_ts_queue_size;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* _LAN743X_PTP_H */
|