1// SPDX-License-Identifier: GPL-2.0-only
  2/* Copyright (C) 2021 Felix Fietkau <nbd@nbd.name> */
  3
  4#ifndef __MTK_WED_PRIV_H
  5#define __MTK_WED_PRIV_H
  6
  7#include <linux/soc/mediatek/mtk_wed.h>
  8#include <linux/debugfs.h>
  9#include <linux/regmap.h>
 10#include <linux/netdevice.h>
 11
 12#include "mtk_wed_regs.h"
 13
 14struct mtk_eth;
 15struct mtk_wed_wo;
 16
 17struct mtk_wed_soc_data {
 18	struct {
 19		u32 tx_bm_tkid;
 20		u32 wpdma_rx_ring0;
 21		u32 reset_idx_tx_mask;
 22		u32 reset_idx_rx_mask;
 23	} regmap;
 24	u32 tx_ring_desc_size;
 25	u32 wdma_desc_size;
 26};
 27
 28struct mtk_wed_amsdu {
 29	void *txd;
 30	dma_addr_t txd_phy;
 31};
 32
 33struct mtk_wed_hw {
 34	const struct mtk_wed_soc_data *soc;
 35	struct device_node *node;
 36	struct mtk_eth *eth;
 37	struct regmap *regs;
 38	struct regmap *hifsys;
 39	struct device *dev;
 40	void __iomem *wdma;
 41	phys_addr_t wdma_phy;
 42	struct regmap *mirror;
 43	struct dentry *debugfs_dir;
 44	struct mtk_wed_device *wed_dev;
 45	struct mtk_wed_wo *wed_wo;
 46	struct mtk_wed_amsdu *wed_amsdu;
 47	u32 pcie_base;
 48	u32 debugfs_reg;
 49	u32 num_flows;
 50	u8 version;
 51	char dirname[5];
 52	int irq;
 53	int index;
 54};
 55
 56struct mtk_wdma_info {
 57	u8 wdma_idx;
 58	u8 queue;
 59	u16 wcid;
 60	u8 bss;
 61	u8 amsdu;
 62};
 63
 64#ifdef CONFIG_NET_MEDIATEK_SOC_WED
 65static inline bool mtk_wed_is_v1(struct mtk_wed_hw *hw)
 66{
 67	return hw->version == 1;
 68}
 69
 70static inline bool mtk_wed_is_v2(struct mtk_wed_hw *hw)
 71{
 72	return hw->version == 2;
 73}
 74
 75static inline bool mtk_wed_is_v3(struct mtk_wed_hw *hw)
 76{
 77	return hw->version == 3;
 78}
 79
 80static inline bool mtk_wed_is_v3_or_greater(struct mtk_wed_hw *hw)
 81{
 82	return hw->version > 2;
 83}
 84
 85static inline void
 86wed_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
 87{
 88	regmap_write(dev->hw->regs, reg, val);
 89}
 90
 91static inline u32
 92wed_r32(struct mtk_wed_device *dev, u32 reg)
 93{
 94	unsigned int val;
 95
 96	regmap_read(dev->hw->regs, reg, &val);
 97
 98	return val;
 99}
100
101static inline void
102wdma_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
103{
104	writel(val, dev->hw->wdma + reg);
105}
106
107static inline u32
108wdma_r32(struct mtk_wed_device *dev, u32 reg)
109{
110	return readl(dev->hw->wdma + reg);
111}
112
113static inline u32
114wpdma_tx_r32(struct mtk_wed_device *dev, int ring, u32 reg)
115{
116	if (!dev->tx_ring[ring].wpdma)
117		return 0;
118
119	return readl(dev->tx_ring[ring].wpdma + reg);
120}
121
122static inline void
123wpdma_tx_w32(struct mtk_wed_device *dev, int ring, u32 reg, u32 val)
124{
125	if (!dev->tx_ring[ring].wpdma)
126		return;
127
128	writel(val, dev->tx_ring[ring].wpdma + reg);
129}
130
131static inline u32
132wpdma_rx_r32(struct mtk_wed_device *dev, int ring, u32 reg)
133{
134	if (!dev->rx_ring[ring].wpdma)
135		return 0;
136
137	return readl(dev->rx_ring[ring].wpdma + reg);
138}
139
140static inline void
141wpdma_rx_w32(struct mtk_wed_device *dev, int ring, u32 reg, u32 val)
142{
143	if (!dev->rx_ring[ring].wpdma)
144		return;
145
146	writel(val, dev->rx_ring[ring].wpdma + reg);
147}
148
149static inline u32
150wpdma_txfree_r32(struct mtk_wed_device *dev, u32 reg)
151{
152	if (!dev->txfree_ring.wpdma)
153		return 0;
154
155	return readl(dev->txfree_ring.wpdma + reg);
156}
157
158static inline void
159wpdma_txfree_w32(struct mtk_wed_device *dev, u32 reg, u32 val)
160{
161	if (!dev->txfree_ring.wpdma)
162		return;
163
164	writel(val, dev->txfree_ring.wpdma + reg);
165}
166
167static inline u32 mtk_wed_get_pcie_base(struct mtk_wed_device *dev)
168{
169	if (!mtk_wed_is_v3_or_greater(dev->hw))
170		return MTK_WED_PCIE_BASE;
171
172	switch (dev->hw->index) {
173	case 1:
174		return MTK_WED_PCIE_BASE1;
175	case 2:
176		return MTK_WED_PCIE_BASE2;
177	default:
178		return MTK_WED_PCIE_BASE0;
179	}
180}
181
182void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
183		    void __iomem *wdma, phys_addr_t wdma_phy,
184		    int index);
185void mtk_wed_exit(void);
186int mtk_wed_flow_add(int index);
187void mtk_wed_flow_remove(int index);
188void mtk_wed_fe_reset(void);
189void mtk_wed_fe_reset_complete(void);
190#else
191static inline void
192mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
193	       void __iomem *wdma, phys_addr_t wdma_phy,
194	       int index)
195{
196}
197static inline void
198mtk_wed_exit(void)
199{
200}
201static inline int mtk_wed_flow_add(int index)
202{
203	return -EINVAL;
204}
205static inline void mtk_wed_flow_remove(int index)
206{
207}
208
209static inline void mtk_wed_fe_reset(void)
210{
211}
212
213static inline void mtk_wed_fe_reset_complete(void)
214{
215}
216#endif
217
218#ifdef CONFIG_DEBUG_FS
219void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw);
220#else
221static inline void mtk_wed_hw_add_debugfs(struct mtk_wed_hw *hw)
222{
223}
224#endif
225
226#endif