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
227