1// SPDX-License-Identifier: ISC
2/* Copyright (C) 2021 MediaTek Inc. */
3
4#include "mt7921.h"
5#include "../dma.h"
6#include "../mt76_connac2_mac.h"
7
8int mt7921e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
9			   enum mt76_txq_id qid, struct mt76_wcid *wcid,
10			   struct ieee80211_sta *sta,
11			   struct mt76_tx_info *tx_info)
12{
13	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
14	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
15	struct ieee80211_key_conf *key = info->control.hw_key;
16	struct mt76_connac_hw_txp *txp;
17	struct mt76_txwi_cache *t;
18	int id, pid;
19	u8 *txwi = (u8 *)txwi_ptr;
20
21	if (unlikely(tx_info->skb->len <= ETH_HLEN))
22		return -EINVAL;
23
24	if (!wcid)
25		wcid = &dev->mt76.global_wcid;
26
27	t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size);
28	t->skb = tx_info->skb;
29
30	id = mt76_token_consume(mdev, &t);
31	if (id < 0)
32		return id;
33
34	if (sta) {
35		struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
36
37		if (time_after(jiffies, msta->last_txs + HZ / 4)) {
38			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
39			msta->last_txs = jiffies;
40		}
41	}
42
43	pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
44	mt76_connac2_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, key,
45				    pid, qid, 0);
46
47	txp = (struct mt76_connac_hw_txp *)(txwi + MT_TXD_SIZE);
48	memset(txp, 0, sizeof(struct mt76_connac_hw_txp));
49	mt76_connac_write_hw_txp(mdev, tx_info, txp, id);
50
51	tx_info->skb = NULL;
52
53	return 0;
54}
55
56int mt7921e_mac_reset(struct mt792x_dev *dev)
57{
58	int i, err;
59
60	mt792xe_mcu_drv_pmctrl(dev);
61
62	mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
63
64	mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
65	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
66
67	set_bit(MT76_RESET, &dev->mphy.state);
68	set_bit(MT76_MCU_RESET, &dev->mphy.state);
69	wake_up(&dev->mt76.mcu.wait);
70	skb_queue_purge(&dev->mt76.mcu.res_q);
71
72	mt76_txq_schedule_all(&dev->mphy);
73
74	mt76_worker_disable(&dev->mt76.tx_worker);
75	napi_disable(&dev->mt76.napi[MT_RXQ_MAIN]);
76	napi_disable(&dev->mt76.napi[MT_RXQ_MCU]);
77	napi_disable(&dev->mt76.napi[MT_RXQ_MCU_WA]);
78	napi_disable(&dev->mt76.tx_napi);
79
80	mt76_connac2_tx_token_put(&dev->mt76);
81	idr_init(&dev->mt76.token);
82
83	mt792x_wpdma_reset(dev, true);
84
85	local_bh_disable();
86	mt76_for_each_q_rx(&dev->mt76, i) {
87		napi_enable(&dev->mt76.napi[i]);
88		napi_schedule(&dev->mt76.napi[i]);
89	}
90	local_bh_enable();
91
92	dev->fw_assert = false;
93	clear_bit(MT76_MCU_RESET, &dev->mphy.state);
94
95	mt76_wr(dev, dev->irq_map->host_irq_enable,
96		dev->irq_map->tx.all_complete_mask |
97		MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD);
98	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
99
100	err = mt7921e_driver_own(dev);
101	if (err)
102		goto out;
103
104	err = mt7921_run_firmware(dev);
105	if (err)
106		goto out;
107
108	err = mt7921_mcu_set_eeprom(dev);
109	if (err)
110		goto out;
111
112	err = mt7921_mac_init(dev);
113	if (err)
114		goto out;
115
116	err = __mt7921_start(&dev->phy);
117out:
118	clear_bit(MT76_RESET, &dev->mphy.state);
119
120	local_bh_disable();
121	napi_enable(&dev->mt76.tx_napi);
122	napi_schedule(&dev->mt76.tx_napi);
123	local_bh_enable();
124
125	mt76_worker_enable(&dev->mt76.tx_worker);
126
127	return err;
128}
129