/* * Copyright (C) 2016 Felix Fietkau * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef __MT76_DMA_H #define __MT76_DMA_H #define MT_RING_SIZE 0x10 #define MT_DMA_CTL_SD_LEN1 GENMASK(13, 0) #define MT_DMA_CTL_LAST_SEC1 BIT(14) #define MT_DMA_CTL_BURST BIT(15) #define MT_DMA_CTL_SD_LEN0 GENMASK(29, 16) #define MT_DMA_CTL_LAST_SEC0 BIT(30) #define MT_DMA_CTL_DMA_DONE BIT(31) #define MT_TXD_INFO_LEN GENMASK(15, 0) #define MT_TXD_INFO_NEXT_VLD BIT(16) #define MT_TXD_INFO_TX_BURST BIT(17) #define MT_TXD_INFO_80211 BIT(19) #define MT_TXD_INFO_TSO BIT(20) #define MT_TXD_INFO_CSO BIT(21) #define MT_TXD_INFO_WIV BIT(24) #define MT_TXD_INFO_QSEL GENMASK(26, 25) #define MT_TXD_INFO_DPORT GENMASK(29, 27) #define MT_TXD_INFO_TYPE GENMASK(31, 30) #define MT_RX_FCE_INFO_LEN GENMASK(13, 0) #define MT_RX_FCE_INFO_SELF_GEN BIT(15) #define MT_RX_FCE_INFO_CMD_SEQ GENMASK(19, 16) #define MT_RX_FCE_INFO_EVT_TYPE GENMASK(23, 20) #define MT_RX_FCE_INFO_PCIE_INTR BIT(24) #define MT_RX_FCE_INFO_QSEL GENMASK(26, 25) #define MT_RX_FCE_INFO_D_PORT GENMASK(29, 27) #define MT_RX_FCE_INFO_TYPE GENMASK(31, 30) /* MCU request message header */ #define MT_MCU_MSG_LEN GENMASK(15, 0) #define MT_MCU_MSG_CMD_SEQ GENMASK(19, 16) #define MT_MCU_MSG_CMD_TYPE GENMASK(26, 20) #define MT_MCU_MSG_PORT GENMASK(29, 27) #define MT_MCU_MSG_TYPE GENMASK(31, 30) #define MT_MCU_MSG_TYPE_CMD BIT(30) #define MT_DMA_HDR_LEN 4 #define MT_RX_INFO_LEN 4 #define MT_FCE_INFO_LEN 4 #define MT_RX_RXWI_LEN 32 struct mt76_desc { __le32 buf0; __le32 ctrl; __le32 buf1; __le32 info; } __packed __aligned(4); enum dma_msg_port { WLAN_PORT, CPU_RX_PORT, CPU_TX_PORT, HOST_PORT, VIRTUAL_CPU_RX_PORT, VIRTUAL_CPU_TX_PORT, DISCARD, }; int mt76_dma_attach(struct mt76_dev *dev); void mt76_dma_cleanup(struct mt76_dev *dev); #endif