diff options
Diffstat (limited to 'drivers/net/can/usb/kvaser_usb/kvaser_usb.h')
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb/kvaser_usb.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb.h b/drivers/net/can/usb/kvaser_usb/kvaser_usb.h index ff10b3790d84..f6c77eca9f43 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb.h +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb.h @@ -22,6 +22,8 @@ */ #include <linux/completion.h> +#include <linux/ktime.h> +#include <linux/math64.h> #include <linux/spinlock.h> #include <linux/types.h> #include <linux/usb.h> @@ -39,7 +41,6 @@ #define KVASER_USB_QUIRK_HAS_SILENT_MODE BIT(0) #define KVASER_USB_QUIRK_HAS_TXRX_ERRORS BIT(1) #define KVASER_USB_QUIRK_IGNORE_CLK_FREQ BIT(2) -#define KVASER_USB_QUIRK_HAS_HARDWARE_TIMESTAMP BIT(3) /* Device capabilities */ #define KVASER_USB_CAP_BERR_CAP 0x01 @@ -68,6 +69,7 @@ struct kvaser_usb_dev_card_data { u32 ctrlmode_supported; u32 capabilities; struct kvaser_usb_dev_card_data_hydra hydra; + u32 usbcan_timestamp_msb; }; /* Context for an outstanding, not yet ACKed, transmission */ @@ -135,7 +137,7 @@ struct kvaser_usb_net_priv { * @dev_set_mode: used for can.do_set_mode * @dev_set_bittiming: used for can.do_set_bittiming * @dev_get_busparams: readback arbitration busparams - * @dev_set_data_bittiming: used for can.do_set_data_bittiming + * @dev_set_data_bittiming: used for can.fd.do_set_data_bittiming * @dev_get_data_busparams: readback data busparams * @dev_get_berr_counter: used for can.do_get_berr_counter * @@ -216,4 +218,26 @@ int kvaser_usb_can_rx_over_error(struct net_device *netdev); extern const struct can_bittiming_const kvaser_usb_flexc_bittiming_const; +static inline ktime_t kvaser_usb_ticks_to_ktime(const struct kvaser_usb_dev_cfg *cfg, + u64 ticks) +{ + return ns_to_ktime(div_u64(ticks * 1000, cfg->timestamp_freq)); +} + +static inline ktime_t kvaser_usb_timestamp48_to_ktime(const struct kvaser_usb_dev_cfg *cfg, + const __le16 *timestamp) +{ + u64 ticks = le16_to_cpu(timestamp[0]) | + (u64)(le16_to_cpu(timestamp[1])) << 16 | + (u64)(le16_to_cpu(timestamp[2])) << 32; + + return kvaser_usb_ticks_to_ktime(cfg, ticks); +} + +static inline ktime_t kvaser_usb_timestamp64_to_ktime(const struct kvaser_usb_dev_cfg *cfg, + __le64 timestamp) +{ + return kvaser_usb_ticks_to_ktime(cfg, le64_to_cpu(timestamp)); +} + #endif /* KVASER_USB_H */ |