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/*
* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
*
* 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
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