diff options
Diffstat (limited to 'drivers/net/can/rockchip/rockchip_canfd.h')
| -rw-r--r-- | drivers/net/can/rockchip/rockchip_canfd.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/can/rockchip/rockchip_canfd.h b/drivers/net/can/rockchip/rockchip_canfd.h index c775e75a2740..a4688411e586 100644 --- a/drivers/net/can/rockchip/rockchip_canfd.h +++ b/drivers/net/can/rockchip/rockchip_canfd.h @@ -471,10 +471,36 @@ rkcanfd_get_timestamp(const struct rkcanfd_priv *priv) return rkcanfd_read(priv, RKCANFD_REG_TIMESTAMP); } +static inline unsigned int +rkcanfd_get_tx_head(const struct rkcanfd_priv *priv) +{ + return READ_ONCE(priv->tx_head) & (RKCANFD_TXFIFO_DEPTH - 1); +} + +static inline unsigned int +rkcanfd_get_tx_tail(const struct rkcanfd_priv *priv) +{ + return READ_ONCE(priv->tx_tail) & (RKCANFD_TXFIFO_DEPTH - 1); +} + +static inline unsigned int +rkcanfd_get_tx_pending(const struct rkcanfd_priv *priv) +{ + return READ_ONCE(priv->tx_head) - READ_ONCE(priv->tx_tail); +} + +static inline unsigned int +rkcanfd_get_tx_free(const struct rkcanfd_priv *priv) +{ + return RKCANFD_TXFIFO_DEPTH - rkcanfd_get_tx_pending(priv); +} + int rkcanfd_handle_rx_int(struct rkcanfd_priv *priv); void rkcanfd_timestamp_init(struct rkcanfd_priv *priv); int rkcanfd_start_xmit(struct sk_buff *skb, struct net_device *ndev); +void rkcanfd_handle_tx_done_one(struct rkcanfd_priv *priv, const u32 ts, + unsigned int *frame_len_p); #endif |