1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2021 MediaTek Inc. */
3 
4 #include "mt7921.h"
5 #include "mcu.h"
6 
7 int mt7921e_driver_own(struct mt792x_dev *dev)
8 {
9 	u32 reg = mt7921_reg_map_l1(dev, MT_TOP_LPCR_HOST_BAND0);
10 
11 	mt76_wr(dev, reg, MT_TOP_LPCR_HOST_DRV_OWN);
12 	if (!mt76_poll_msec(dev, reg, MT_TOP_LPCR_HOST_FW_OWN,
13 			    0, 500)) {
14 		dev_err(dev->mt76.dev, "Timeout for driver own\n");
15 		return -EIO;
16 	}
17 
18 	return 0;
19 }
20 
21 static int
22 mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
23 			int cmd, int *seq)
24 {
25 	struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
26 	enum mt76_mcuq_id txq = MT_MCUQ_WM;
27 	int ret;
28 
29 	ret = mt76_connac2_mcu_fill_message(mdev, skb, cmd, seq);
30 	if (ret)
31 		return ret;
32 
33 	mdev->mcu.timeout = 3 * HZ;
34 
35 	if (cmd == MCU_CMD(FW_SCATTER))
36 		txq = MT_MCUQ_FWDL;
37 
38 	return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
39 }
40 
41 int mt7921e_mcu_init(struct mt792x_dev *dev)
42 {
43 	static const struct mt76_mcu_ops mt7921_mcu_ops = {
44 		.headroom = sizeof(struct mt76_connac2_mcu_txd),
45 		.mcu_skb_send_msg = mt7921_mcu_send_message,
46 		.mcu_parse_response = mt7921_mcu_parse_response,
47 	};
48 	int err;
49 
50 	dev->mt76.mcu_ops = &mt7921_mcu_ops;
51 
52 	err = mt7921e_driver_own(dev);
53 	if (err)
54 		return err;
55 
56 	mt76_rmw_field(dev, MT_PCIE_MAC_PM, MT_PCIE_MAC_PM_L0S_DIS, 1);
57 
58 	err = mt7921_run_firmware(dev);
59 
60 	mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
61 
62 	return err;
63 }
64