From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/net/ethernet/microchip/lan743x_ptp.h | 101 +++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 drivers/net/ethernet/microchip/lan743x_ptp.h (limited to 'drivers/net/ethernet/microchip/lan743x_ptp.h') diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.h b/drivers/net/ethernet/microchip/lan743x_ptp.h new file mode 100644 index 000000000..e26d4eff7 --- /dev/null +++ b/drivers/net/ethernet/microchip/lan743x_ptp.h @@ -0,0 +1,101 @@ +/* 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" + +#define LAN7430_N_LED 4 +#define LAN7430_N_GPIO 4 /* multiplexed with PHY LEDs */ +#define LAN7431_N_GPIO 12 + +#define LAN743X_PTP_N_GPIO LAN7431_N_GPIO + +/* the number of periodic outputs is limited by number of + * PTP clock event channels + */ +#define LAN743X_PTP_N_EVENT_CHAN 2 +#define LAN743X_PTP_N_PEROUT LAN743X_PTP_N_EVENT_CHAN +#define LAN743X_PTP_N_EXTTS 4 +#define LAN743X_PTP_N_PPS 0 +#define PCI11X1X_PTP_IO_MAX_CHANNELS 8 + +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_perout { + int event_ch; /* PTP event channel (0=channel A, 1=channel B) */ + int gpio_pin; /* GPIO pin where output appears */ +}; + +struct lan743x_extts { + int flags; + struct timespec64 ts; +}; + +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[LAN743X_PTP_N_GPIO]; + + unsigned long used_event_ch; + struct lan743x_ptp_perout perout[LAN743X_PTP_N_PEROUT]; + int ptp_io_perout[LAN743X_PTP_N_PEROUT]; /* PTP event channel (0=channel A, 1=channel B) */ + struct lan743x_extts extts[LAN743X_PTP_N_EXTTS]; + + bool leds_multiplexed; + bool led_enabled[LAN7430_N_LED]; + + /* 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 */ -- cgit v1.2.3