1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /* Copyright (C) 2018 Microchip Technology Inc. */
7 #include "linux/ptp_clock_kernel.h"
8 #include "linux/netdevice.h"
10 #define LAN7430_N_LED 4
11 #define LAN7430_N_GPIO 4 /* multiplexed with PHY LEDs */
12 #define LAN7431_N_GPIO 12
14 #define LAN743X_PTP_N_GPIO LAN7431_N_GPIO
16 /* the number of periodic outputs is limited by number of
17 * PTP clock event channels
19 #define LAN743X_PTP_N_EVENT_CHAN 2
20 #define LAN743X_PTP_N_PEROUT LAN743X_PTP_N_EVENT_CHAN
21 #define LAN743X_PTP_N_EXTTS 4
22 #define LAN743X_PTP_N_PPS 0
23 #define PCI11X1X_PTP_IO_MAX_CHANNELS 8
25 struct lan743x_adapter;
29 /* gpio_lock: used to prevent concurrent access to gpio settings */
41 int lan743x_gpio_init(struct lan743x_adapter *adapter);
43 void lan743x_ptp_isr(void *context);
44 bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
45 void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
46 void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
47 struct sk_buff *skb, bool ignore_sync);
48 int lan743x_ptp_init(struct lan743x_adapter *adapter);
49 int lan743x_ptp_open(struct lan743x_adapter *adapter);
50 void lan743x_ptp_close(struct lan743x_adapter *adapter);
51 void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
54 int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
56 #define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
58 #define PTP_FLAG_PTP_CLOCK_REGISTERED BIT(1)
59 #define PTP_FLAG_ISR_ENABLED BIT(2)
61 struct lan743x_ptp_perout {
62 int event_ch; /* PTP event channel (0=channel A, 1=channel B) */
63 int gpio_pin; /* GPIO pin where output appears */
66 struct lan743x_extts {
74 /* command_lock: used to prevent concurrent ptp commands */
75 struct mutex command_lock;
77 struct ptp_clock *ptp_clock;
78 struct ptp_clock_info ptp_clock_info;
79 struct ptp_pin_desc pin_config[LAN743X_PTP_N_GPIO];
81 unsigned long used_event_ch;
82 struct lan743x_ptp_perout perout[LAN743X_PTP_N_PEROUT];
83 int ptp_io_perout[LAN743X_PTP_N_PEROUT]; /* PTP event channel (0=channel A, 1=channel B) */
84 struct lan743x_extts extts[LAN743X_PTP_N_EXTTS];
86 bool leds_multiplexed;
87 bool led_enabled[LAN7430_N_LED];
89 /* tx_ts_lock: used to prevent concurrent access to timestamp arrays */
90 spinlock_t tx_ts_lock;
91 int pending_tx_timestamps;
92 struct sk_buff *tx_ts_skb_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
93 unsigned int tx_ts_ignore_sync_queue;
94 int tx_ts_skb_queue_size;
95 u32 tx_ts_seconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
96 u32 tx_ts_nseconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
97 u32 tx_ts_header_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
101 #endif /* _LAN743X_PTP_H */