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1/* SPDX-License-Identifier: GPL-2.0+ */
2/* Copyright (C) 2018 Microchip Technology Inc. */
3
4#ifndef _LAN743X_PTP_H
5#define _LAN743X_PTP_H
6
7#include "linux/ptp_clock_kernel.h"
8#include "linux/netdevice.h"
9
10#define LAN7430_N_LED 4
11#define LAN7430_N_GPIO 4 /* multiplexed with PHY LEDs */
12#define LAN7431_N_GPIO 12
13
14#define LAN743X_PTP_N_GPIO LAN7431_N_GPIO
15
16/* the number of periodic outputs is limited by number of
17 * PTP clock event channels
18 */
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
24
25struct lan743x_adapter;
26
27/* GPIO */
28struct lan743x_gpio {
29 /* gpio_lock: used to prevent concurrent access to gpio settings */
30 spinlock_t gpio_lock;
31
32 int used_bits;
33 int output_bits;
34 int ptp_bits;
35 u32 gpio_cfg0;
36 u32 gpio_cfg1;
37 u32 gpio_cfg2;
38 u32 gpio_cfg3;
39};
40
41int lan743x_gpio_init(struct lan743x_adapter *adapter);
42
43void lan743x_ptp_isr(void *context);
44bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
45void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
46void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
47 struct sk_buff *skb, bool ignore_sync);
48int lan743x_ptp_init(struct lan743x_adapter *adapter);
49int lan743x_ptp_open(struct lan743x_adapter *adapter);
50void lan743x_ptp_close(struct lan743x_adapter *adapter);
51void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
52 u32 link_speed);
53
54int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
55
56#define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
57
58#define PTP_FLAG_PTP_CLOCK_REGISTERED BIT(1)
59#define PTP_FLAG_ISR_ENABLED BIT(2)
60
61struct 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 */
64};
65
66struct lan743x_extts {
67 int flags;
68 struct timespec64 ts;
69};
70
71struct lan743x_ptp {
72 int flags;
73
74 /* command_lock: used to prevent concurrent ptp commands */
75 struct mutex command_lock;
76
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];
80
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];
85
86 bool leds_multiplexed;
87 bool led_enabled[LAN7430_N_LED];
88
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];
98 int tx_ts_queue_size;
99};
100
101#endif /* _LAN743X_PTP_H */
1/* SPDX-License-Identifier: GPL-2.0+ */
2/* Copyright (C) 2018 Microchip Technology Inc. */
3
4#ifndef _LAN743X_PTP_H
5#define _LAN743X_PTP_H
6
7#include "linux/ptp_clock_kernel.h"
8#include "linux/netdevice.h"
9
10#define LAN7430_N_LED 4
11#define LAN7430_N_GPIO 4 /* multiplexed with PHY LEDs */
12#define LAN7431_N_GPIO 12
13
14#define LAN743X_PTP_N_GPIO LAN7431_N_GPIO
15
16/* the number of periodic outputs is limited by number of
17 * PTP clock event channels
18 */
19#define LAN743X_PTP_N_EVENT_CHAN 2
20#define LAN743X_PTP_N_PEROUT LAN743X_PTP_N_EVENT_CHAN
21
22struct lan743x_adapter;
23
24/* GPIO */
25struct lan743x_gpio {
26 /* gpio_lock: used to prevent concurrent access to gpio settings */
27 spinlock_t gpio_lock;
28
29 int used_bits;
30 int output_bits;
31 int ptp_bits;
32 u32 gpio_cfg0;
33 u32 gpio_cfg1;
34 u32 gpio_cfg2;
35 u32 gpio_cfg3;
36};
37
38int lan743x_gpio_init(struct lan743x_adapter *adapter);
39
40void lan743x_ptp_isr(void *context);
41bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
42void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
43void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
44 struct sk_buff *skb, bool ignore_sync);
45int lan743x_ptp_init(struct lan743x_adapter *adapter);
46int lan743x_ptp_open(struct lan743x_adapter *adapter);
47void lan743x_ptp_close(struct lan743x_adapter *adapter);
48void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
49 u32 link_speed);
50
51int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
52
53#define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
54
55#define PTP_FLAG_PTP_CLOCK_REGISTERED BIT(1)
56#define PTP_FLAG_ISR_ENABLED BIT(2)
57
58struct lan743x_ptp_perout {
59 int event_ch; /* PTP event channel (0=channel A, 1=channel B) */
60 int gpio_pin; /* GPIO pin where output appears */
61};
62
63struct lan743x_ptp {
64 int flags;
65
66 /* command_lock: used to prevent concurrent ptp commands */
67 struct mutex command_lock;
68
69 struct ptp_clock *ptp_clock;
70 struct ptp_clock_info ptp_clock_info;
71 struct ptp_pin_desc pin_config[LAN743X_PTP_N_GPIO];
72
73 unsigned long used_event_ch;
74 struct lan743x_ptp_perout perout[LAN743X_PTP_N_PEROUT];
75
76 bool leds_multiplexed;
77 bool led_enabled[LAN7430_N_LED];
78
79 /* tx_ts_lock: used to prevent concurrent access to timestamp arrays */
80 spinlock_t tx_ts_lock;
81 int pending_tx_timestamps;
82 struct sk_buff *tx_ts_skb_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
83 unsigned int tx_ts_ignore_sync_queue;
84 int tx_ts_skb_queue_size;
85 u32 tx_ts_seconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
86 u32 tx_ts_nseconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
87 u32 tx_ts_header_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
88 int tx_ts_queue_size;
89};
90
91#endif /* _LAN743X_PTP_H */