Loading...
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
10struct lan743x_adapter;
11
12/* GPIO */
13struct lan743x_gpio {
14 /* gpio_lock: used to prevent concurrent access to gpio settings */
15 spinlock_t gpio_lock;
16
17 int used_bits;
18 int output_bits;
19 int ptp_bits;
20 u32 gpio_cfg0;
21 u32 gpio_cfg1;
22 u32 gpio_cfg2;
23 u32 gpio_cfg3;
24};
25
26int lan743x_gpio_init(struct lan743x_adapter *adapter);
27
28void lan743x_ptp_isr(void *context);
29bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
30void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
31void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
32 struct sk_buff *skb, bool ignore_sync);
33int lan743x_ptp_init(struct lan743x_adapter *adapter);
34int lan743x_ptp_open(struct lan743x_adapter *adapter);
35void lan743x_ptp_close(struct lan743x_adapter *adapter);
36void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
37 u32 link_speed);
38
39int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
40
41#define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
42
43#define PTP_FLAG_PTP_CLOCK_REGISTERED BIT(1)
44#define PTP_FLAG_ISR_ENABLED BIT(2)
45
46struct lan743x_ptp {
47 int flags;
48
49 /* command_lock: used to prevent concurrent ptp commands */
50 struct mutex command_lock;
51
52 struct ptp_clock *ptp_clock;
53 struct ptp_clock_info ptp_clock_info;
54 struct ptp_pin_desc pin_config[1];
55
56#define LAN743X_PTP_NUMBER_OF_EVENT_CHANNELS (2)
57 unsigned long used_event_ch;
58
59 int perout_event_ch;
60 int perout_gpio_bit;
61
62 /* tx_ts_lock: used to prevent concurrent access to timestamp arrays */
63 spinlock_t tx_ts_lock;
64 int pending_tx_timestamps;
65 struct sk_buff *tx_ts_skb_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
66 unsigned int tx_ts_ignore_sync_queue;
67 int tx_ts_skb_queue_size;
68 u32 tx_ts_seconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
69 u32 tx_ts_nseconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
70 u32 tx_ts_header_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
71 int tx_ts_queue_size;
72};
73
74#endif /* _LAN743X_PTP_H */