tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16#ifndef __MT76_DMA_H
17#define __MT76_DMA_H
18
19#define MT_RING_SIZE 0x10
20
21#define MT_DMA_CTL_SD_LEN1 GENMASK(13, 0)
22#define MT_DMA_CTL_LAST_SEC1 BIT(14)
23#define MT_DMA_CTL_BURST BIT(15)
24#define MT_DMA_CTL_SD_LEN0 GENMASK(29, 16)
25#define MT_DMA_CTL_LAST_SEC0 BIT(30)
26#define MT_DMA_CTL_DMA_DONE BIT(31)
27
28#define MT_DMA_HDR_LEN 4
29#define MT_RX_INFO_LEN 4
30#define MT_FCE_INFO_LEN 4
31#define MT_RX_RXWI_LEN 32
32
33struct mt76_desc {
34 __le32 buf0;
35 __le32 ctrl;
36 __le32 buf1;
37 __le32 info;
38} __packed __aligned(4);
39
40enum mt76_qsel {
41 MT_QSEL_MGMT,
42 MT_QSEL_HCCA,
43 MT_QSEL_EDCA,
44 MT_QSEL_EDCA_2,
45};
46
47enum mt76_mcu_evt_type {
48 EVT_CMD_DONE,
49 EVT_CMD_ERROR,
50 EVT_CMD_RETRY,
51 EVT_EVENT_PWR_RSP,
52 EVT_EVENT_WOW_RSP,
53 EVT_EVENT_CARRIER_DETECT_RSP,
54 EVT_EVENT_DFS_DETECT_RSP,
55};
56
57int mt76_dma_attach(struct mt76_dev *dev);
58void mt76_dma_cleanup(struct mt76_dev *dev);
59
60#endif