xref: /linux/drivers/net/wireless/mediatek/mt76/mt76x02_dma.h (revision cbecf716ca618fd44feda6bd9a64a8179d031fc5)
1 /* SPDX-License-Identifier: ISC */
2 /*
3  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
4  */
5 
6 #ifndef __MT76x02_DMA_H
7 #define __MT76x02_DMA_H
8 
9 #include "mt76x02.h"
10 #include "dma.h"
11 
12 #define MT_TXD_INFO_LEN			GENMASK(15, 0)
13 #define MT_TXD_INFO_NEXT_VLD		BIT(16)
14 #define MT_TXD_INFO_TX_BURST		BIT(17)
15 #define MT_TXD_INFO_80211		BIT(19)
16 #define MT_TXD_INFO_TSO			BIT(20)
17 #define MT_TXD_INFO_CSO			BIT(21)
18 #define MT_TXD_INFO_WIV			BIT(24)
19 #define MT_TXD_INFO_QSEL		GENMASK(26, 25)
20 #define MT_TXD_INFO_DPORT		GENMASK(29, 27)
21 #define MT_TXD_INFO_TYPE		GENMASK(31, 30)
22 
23 #define MT_RX_FCE_INFO_LEN		GENMASK(13, 0)
24 #define MT_RX_FCE_INFO_SELF_GEN		BIT(15)
25 #define MT_RX_FCE_INFO_CMD_SEQ		GENMASK(19, 16)
26 #define MT_RX_FCE_INFO_EVT_TYPE		GENMASK(23, 20)
27 #define MT_RX_FCE_INFO_PCIE_INTR	BIT(24)
28 #define MT_RX_FCE_INFO_QSEL		GENMASK(26, 25)
29 #define MT_RX_FCE_INFO_D_PORT		GENMASK(29, 27)
30 #define MT_RX_FCE_INFO_TYPE		GENMASK(31, 30)
31 
32 /* MCU request message header  */
33 #define MT_MCU_MSG_LEN			GENMASK(15, 0)
34 #define MT_MCU_MSG_CMD_SEQ		GENMASK(19, 16)
35 #define MT_MCU_MSG_CMD_TYPE		GENMASK(26, 20)
36 #define MT_MCU_MSG_PORT			GENMASK(29, 27)
37 #define MT_MCU_MSG_TYPE			GENMASK(31, 30)
38 #define MT_MCU_MSG_TYPE_CMD		BIT(30)
39 
40 #define MT_RX_HEADROOM			32
41 #define MT76X02_RX_RING_SIZE		256
42 
43 enum dma_msg_port {
44 	WLAN_PORT,
45 	CPU_RX_PORT,
46 	CPU_TX_PORT,
47 	HOST_PORT,
48 	VIRTUAL_CPU_RX_PORT,
49 	VIRTUAL_CPU_TX_PORT,
50 	DISCARD,
51 };
52 
53 static inline bool
mt76x02_wait_for_wpdma(struct mt76_dev * dev,int timeout)54 mt76x02_wait_for_wpdma(struct mt76_dev *dev, int timeout)
55 {
56 	return __mt76_poll(dev, MT_WPDMA_GLO_CFG,
57 			   MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
58 			   MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
59 			   0, timeout);
60 }
61 
62 int mt76x02_dma_init(struct mt76x02_dev *dev);
63 void mt76x02_dma_disable(struct mt76x02_dev *dev);
64 
65 #endif /* __MT76x02_DMA_H */
66