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 60