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