1 /* SPDX-License-Identifier: ISC */
2 /*
3  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
4  */
5 #ifndef __MT76_DMA_H
6 #define __MT76_DMA_H
7 
8 #define DMA_DUMMY_DATA			((void *)~0)
9 
10 #define MT_RING_SIZE			0x10
11 
12 #define MT_DMA_CTL_SD_LEN1		GENMASK(13, 0)
13 #define MT_DMA_CTL_LAST_SEC1		BIT(14)
14 #define MT_DMA_CTL_BURST		BIT(15)
15 #define MT_DMA_CTL_SD_LEN0		GENMASK(29, 16)
16 #define MT_DMA_CTL_LAST_SEC0		BIT(30)
17 #define MT_DMA_CTL_DMA_DONE		BIT(31)
18 
19 #define MT_DMA_HDR_LEN			4
20 #define MT_RX_INFO_LEN			4
21 #define MT_FCE_INFO_LEN			4
22 #define MT_RX_RXWI_LEN			32
23 
24 struct mt76_desc {
25 	__le32 buf0;
26 	__le32 ctrl;
27 	__le32 buf1;
28 	__le32 info;
29 } __packed __aligned(4);
30 
31 enum mt76_qsel {
32 	MT_QSEL_MGMT,
33 	MT_QSEL_HCCA,
34 	MT_QSEL_EDCA,
35 	MT_QSEL_EDCA_2,
36 };
37 
38 enum mt76_mcu_evt_type {
39 	EVT_CMD_DONE,
40 	EVT_CMD_ERROR,
41 	EVT_CMD_RETRY,
42 	EVT_EVENT_PWR_RSP,
43 	EVT_EVENT_WOW_RSP,
44 	EVT_EVENT_CARRIER_DETECT_RSP,
45 	EVT_EVENT_DFS_DETECT_RSP,
46 };
47 
48 int mt76_dma_rx_poll(struct napi_struct *napi, int budget);
49 void mt76_dma_attach(struct mt76_dev *dev);
50 void mt76_dma_cleanup(struct mt76_dev *dev);
51 
52 #endif
53