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path: root/drivers/net/ethernet/microchip/lan743x_ptp.h
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Diffstat (limited to 'drivers/net/ethernet/microchip/lan743x_ptp.h')
-rw-r--r--drivers/net/ethernet/microchip/lan743x_ptp.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.h b/drivers/net/ethernet/microchip/lan743x_ptp.h
new file mode 100644
index 000000000000..5fc1b3cd5e33
--- /dev/null
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.h
@@ -0,0 +1,74 @@
+/* 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 */