drivers/net/ethernet/hisilicon/hibmcge/hbg_hw.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Copyright (c) 2024 Hisilicon Limited. */
   3
   4 #ifndef __HBG_HW_H
   5 #define __HBG_HW_H
   6
   7 #include <linux/bitfield.h>
   8 #include <linux/io-64-nonatomic-lo-hi.h>
   9
  10 static inline u32 hbg_reg_read(struct hbg_priv *priv, u32 addr)
  11 {
  12         return readl(priv->io_base + addr);
  13 }
  14
  15 static inline void hbg_reg_write(struct hbg_priv *priv, u32 addr, u32 value)
  16 {
  17         writel(value, priv->io_base + addr);
  18 }
  19
  20 static inline u64 hbg_reg_read64(struct hbg_priv *priv, u32 addr)
  21 {
  22         return lo_hi_readq(priv->io_base + addr);
  23 }
  24
  25 static inline void hbg_reg_write64(struct hbg_priv *priv, u32 addr, u64 value)
  26 {
  27         lo_hi_writeq(value, priv->io_base + addr);
  28 }
  29
  30 #define hbg_reg_read_field(priv, addr, mask) \
  31                 FIELD_GET(mask, hbg_reg_read(priv, addr))
  32
  33 #define hbg_field_modify(reg_value, mask, value) ({     \
  34                 (reg_value) &= ~(mask);                 \
  35                 (reg_value) |= FIELD_PREP(mask, value); })
  36
  37 #define hbg_reg_write_field(priv, addr, mask, val) ({           \
  38                 typeof(priv) _priv = (priv);                    \
  39                 typeof(addr) _addr = (addr);                    \
  40                 u32 _value = hbg_reg_read(_priv, _addr);        \
  41                 hbg_field_modify(_value, mask, val);            \
  42                 hbg_reg_write(_priv, _addr, _value); })
  43
  44 int hbg_hw_event_notify(struct hbg_priv *priv,
  45                         enum hbg_hw_event_type event_type);
  46 int hbg_hw_init(struct hbg_priv *priv);
  47 void hbg_hw_adjust_link(struct hbg_priv *priv, u32 speed, u32 duplex);
  48 u32 hbg_hw_get_irq_status(struct hbg_priv *priv);
  49 void hbg_hw_irq_clear(struct hbg_priv *priv, u32 mask);
  50 bool hbg_hw_irq_is_enabled(struct hbg_priv *priv, u32 mask);
  51 void hbg_hw_irq_enable(struct hbg_priv *priv, u32 mask, bool enable);
  52 void hbg_hw_set_mtu(struct hbg_priv *priv, u16 mtu);
  53 void hbg_hw_mac_enable(struct hbg_priv *priv, u32 enable);
  54 void hbg_hw_set_uc_addr(struct hbg_priv *priv, u64 mac_addr);
  55 u32 hbg_hw_get_fifo_used_num(struct hbg_priv *priv, enum hbg_dir dir);
  56 void hbg_hw_set_tx_desc(struct hbg_priv *priv, struct hbg_tx_desc *tx_desc);
  57 void hbg_hw_fill_buffer(struct hbg_priv *priv, u32 buffer_dma_addr);
  58
  59 #endif