autobuild_mac80211_release/mt7986_besra_mac80211/package/kernel/mt76/src/mt7921/usb.c - openwrt/feeds/mtk-openwrt-feeds - Gitiles

 // SPDX-License-Identifier: ISC
 /* Copyright (C) 2022 MediaTek Inc.
  *
  * Author: Lorenzo Bianconi <lorenzo@kernel.org>
  */

 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/usb.h>

 #include "mt7921.h"
 #include "mcu.h"
 #include "mac.h"

 static const struct usb_device_id mt7921u_device_table[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff) },
 	{ },
 };

 static u32 mt7921u_rr(struct mt76_dev *dev, u32 addr)
 {
 	u32 ret;

 	mutex_lock(&dev->usb.usb_ctrl_mtx);
 	ret = ___mt76u_rr(dev, MT_VEND_READ_EXT,
 			  USB_DIR_IN | MT_USB_TYPE_VENDOR, addr);
 	mutex_unlock(&dev->usb.usb_ctrl_mtx);

 	return ret;
 }

 static void mt7921u_wr(struct mt76_dev *dev, u32 addr, u32 val)
 {
 	mutex_lock(&dev->usb.usb_ctrl_mtx);
 	___mt76u_wr(dev, MT_VEND_WRITE_EXT,
 		    USB_DIR_OUT | MT_USB_TYPE_VENDOR, addr, val);
 	mutex_unlock(&dev->usb.usb_ctrl_mtx);
 }

 static u32 mt7921u_rmw(struct mt76_dev *dev, u32 addr,
 		       u32 mask, u32 val)
 {
 	mutex_lock(&dev->usb.usb_ctrl_mtx);
 	val |= ___mt76u_rr(dev, MT_VEND_READ_EXT,
 			   USB_DIR_IN | MT_USB_TYPE_VENDOR, addr) & ~mask;
 	___mt76u_wr(dev, MT_VEND_WRITE_EXT,
 		    USB_DIR_OUT | MT_USB_TYPE_VENDOR, addr, val);
 	mutex_unlock(&dev->usb.usb_ctrl_mtx);

 	return val;
 }

 static void mt7921u_copy(struct mt76_dev *dev, u32 offset,
 			 const void *data, int len)
 {
 	struct mt76_usb *usb = &dev->usb;
 	int ret, i = 0, batch_len;
 	const u8 *val = data;

 	len = round_up(len, 4);

 	mutex_lock(&usb->usb_ctrl_mtx);
 	while (i < len) {
 		batch_len = min_t(int, usb->data_len, len - i);
 		memcpy(usb->data, val + i, batch_len);
 		ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT,
 					     USB_DIR_OUT | MT_USB_TYPE_VENDOR,
 					     (offset + i) >> 16, offset + i,
 					     usb->data, batch_len);
 		if (ret < 0)
 			break;

 		i += batch_len;
 	}
 	mutex_unlock(&usb->usb_ctrl_mtx);
 }

 int mt7921u_mcu_power_on(struct mt7921_dev *dev)
 {
 	int ret;

 	ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
 				   USB_DIR_OUT | MT_USB_TYPE_VENDOR,
 				   0x0, 0x1, NULL, 0);
 	if (ret)
 		return ret;

 	if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
 			    MT_TOP_MISC2_FW_PWR_ON, 500)) {
 		dev_err(dev->mt76.dev, "Timeout for power on\n");
 		ret = -EIO;
 	}

 	return ret;
 }

 static int
 mt7921u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 			 int cmd, int *seq)
 {
 	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
 	u32 pad, ep;
 	int ret;

 	ret = mt7921_mcu_fill_message(mdev, skb, cmd, seq);
 	if (ret)
 		return ret;

 	if (cmd != MCU_CMD(FW_SCATTER))
 		ep = MT_EP_OUT_INBAND_CMD;
 	else
 		ep = MT_EP_OUT_AC_BE;

 	mt7921_skb_add_usb_sdio_hdr(dev, skb, 0);
 	pad = round_up(skb->len, 4) + 4 - skb->len;
 	__skb_put_zero(skb, pad);

 	ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL,
 			     1000, ep);
 	dev_kfree_skb(skb);

 	return ret;
 }

 static int mt7921u_mcu_init(struct mt7921_dev *dev)
 {
 	static const struct mt76_mcu_ops mcu_ops = {
 		.headroom = MT_SDIO_HDR_SIZE + sizeof(struct mt7921_mcu_txd),
 		.tailroom = MT_USB_TAIL_SIZE,
 		.mcu_skb_send_msg = mt7921u_mcu_send_message,
 		.mcu_parse_response = mt7921_mcu_parse_response,
 		.mcu_restart = mt76_connac_mcu_restart,
 	};
 	int ret;

 	dev->mt76.mcu_ops = &mcu_ops;

 	mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
 	ret = mt7921_run_firmware(dev);
 	if (ret)
 		return ret;

 	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
 	mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);

 	return 0;
 }

 static void mt7921u_stop(struct ieee80211_hw *hw)
 {
 	struct mt7921_dev *dev = mt7921_hw_dev(hw);

 	mt76u_stop_tx(&dev->mt76);
 	mt7921_stop(hw);
 }

 static void mt7921u_cleanup(struct mt7921_dev *dev)
 {
 	clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
 	mt7921u_wfsys_reset(dev);
 	mt7921_mcu_exit(dev);
 	mt76u_queues_deinit(&dev->mt76);
 }

 static int mt7921u_probe(struct usb_interface *usb_intf,
 			 const struct usb_device_id *id)
 {
 	static const struct mt76_driver_ops drv_ops = {
 		.txwi_size = MT_SDIO_TXD_SIZE,
 		.drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ,
 		.survey_flags = SURVEY_INFO_TIME_TX |
 				SURVEY_INFO_TIME_RX |
 				SURVEY_INFO_TIME_BSS_RX,
 		.tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb,
 		.tx_complete_skb = mt7921_usb_sdio_tx_complete_skb,
 		.tx_status_data = mt7921_usb_sdio_tx_status_data,
 		.rx_skb = mt7921_queue_rx_skb,
 		.sta_ps = mt7921_sta_ps,
 		.sta_add = mt7921_mac_sta_add,
 		.sta_assoc = mt7921_mac_sta_assoc,
 		.sta_remove = mt7921_mac_sta_remove,
 		.update_survey = mt7921_update_channel,
 	};
 	static const struct mt7921_hif_ops hif_ops = {
 		.mcu_init = mt7921u_mcu_init,
 		.init_reset = mt7921u_init_reset,
 		.reset = mt7921u_mac_reset,
 	};
 	static struct mt76_bus_ops bus_ops = {
 		.rr = mt7921u_rr,
 		.wr = mt7921u_wr,
 		.rmw = mt7921u_rmw,
 		.read_copy = mt76u_read_copy,
 		.write_copy = mt7921u_copy,
 		.type = MT76_BUS_USB,
 	};
 	struct usb_device *udev = interface_to_usbdev(usb_intf);
 	struct ieee80211_ops *ops;
 	struct ieee80211_hw *hw;
 	struct mt7921_dev *dev;
 	struct mt76_dev *mdev;
 	int ret;

 	ops = devm_kmemdup(&usb_intf->dev, &mt7921_ops, sizeof(mt7921_ops),
 			   GFP_KERNEL);
 	if (!ops)
 		return -ENOMEM;

 	ops->stop = mt7921u_stop;

 	mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
 	if (!mdev)
 		return -ENOMEM;

 	dev = container_of(mdev, struct mt7921_dev, mt76);
 	dev->hif_ops = &hif_ops;

 	udev = usb_get_dev(udev);
 	usb_reset_device(udev);

 	usb_set_intfdata(usb_intf, dev);

 	ret = __mt76u_init(mdev, usb_intf, &bus_ops);
 	if (ret < 0)
 		goto error;

 	mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
 		    (mt76_rr(dev, MT_HW_REV) & 0xff);
 	dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);

 	if (mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY)) {
 		ret = mt7921u_wfsys_reset(dev);
 		if (ret)
 			goto error;
 	}

 	ret = mt7921u_mcu_power_on(dev);
 	if (ret)
 		goto error;

 	ret = mt76u_alloc_mcu_queue(&dev->mt76);
 	if (ret)
 		goto error;

 	ret = mt76u_alloc_queues(&dev->mt76);
 	if (ret)
 		goto error;

 	ret = mt7921u_dma_init(dev, false);
 	if (ret)
 		return ret;

 	hw = mt76_hw(dev);
 	/* check hw sg support in order to enable AMSDU */
 	hw->max_tx_fragments = mdev->usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;

 	ret = mt7921_register_device(dev);
 	if (ret)
 		goto error;

 	return 0;

 error:
 	mt76u_queues_deinit(&dev->mt76);

 	usb_set_intfdata(usb_intf, NULL);
 	usb_put_dev(interface_to_usbdev(usb_intf));

 	mt76_free_device(&dev->mt76);

 	return ret;
 }

 static void mt7921u_disconnect(struct usb_interface *usb_intf)
 {
 	struct mt7921_dev *dev = usb_get_intfdata(usb_intf);

 	cancel_work_sync(&dev->init_work);
 	if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
 		return;

 	mt76_unregister_device(&dev->mt76);
 	mt7921u_cleanup(dev);

 	usb_set_intfdata(usb_intf, NULL);
 	usb_put_dev(interface_to_usbdev(usb_intf));

 	mt76_free_device(&dev->mt76);
 }

 #ifdef CONFIG_PM
 static int mt7921u_suspend(struct usb_interface *intf, pm_message_t state)
 {
 	struct mt7921_dev *dev = usb_get_intfdata(intf);
 	int err;

 	err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
 	if (err)
 		return err;

 	mt76u_stop_rx(&dev->mt76);
 	mt76u_stop_tx(&dev->mt76);

 	set_bit(MT76_STATE_SUSPEND, &dev->mphy.state);

 	return 0;
 }

 static int mt7921u_resume(struct usb_interface *intf)
 {
 	struct mt7921_dev *dev = usb_get_intfdata(intf);
 	bool reinit = true;
 	int err, i;

 	for (i = 0; i < 10; i++) {
 		u32 val = mt76_rr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT);

 		if (!(val & MT_WF_SW_SER_TRIGGER_SUSPEND)) {
 			reinit = false;
 			break;
 		}
 		if (val & MT_WF_SW_SER_DONE_SUSPEND) {
 			mt76_wr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT, 0);
 			break;
 		}

 		msleep(20);
 	}

 	if (reinit || mt7921_dma_need_reinit(dev)) {
 		err = mt7921u_dma_init(dev, true);
 		if (err)
 			return err;
 	}

 	clear_bit(MT76_STATE_SUSPEND, &dev->mphy.state);

 	err = mt76u_resume_rx(&dev->mt76);
 	if (err < 0)
 		return err;

 	return mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
 }
 #endif /* CONFIG_PM */

 MODULE_DEVICE_TABLE(usb, mt7921u_device_table);
 MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
 MODULE_FIRMWARE(MT7921_ROM_PATCH);

 static struct usb_driver mt7921u_driver = {
 	.name		= KBUILD_MODNAME,
 	.id_table	= mt7921u_device_table,
 	.probe		= mt7921u_probe,
 	.disconnect	= mt7921u_disconnect,
 #ifdef CONFIG_PM
 	.suspend	= mt7921u_suspend,
 	.resume		= mt7921u_resume,
 	.reset_resume	= mt7921u_resume,
 #endif /* CONFIG_PM */
 	.soft_unbind	= 1,
 	.disable_hub_initiated_lpm = 1,
 };
 module_usb_driver(mt7921u_driver);

 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
 MODULE_LICENSE("Dual BSD/GPL");
	// SPDX-License-Identifier: ISC
	/* Copyright (C) 2022 MediaTek Inc.
	*
	* Author: Lorenzo Bianconi <lorenzo@kernel.org>
	*/

	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/usb.h>

	#include "mt7921.h"
	#include "mcu.h"
	#include "mac.h"

	static const struct usb_device_id mt7921u_device_table[] = {
	{ USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff) },
	{ },
	};

	static u32 mt7921u_rr(struct mt76_dev *dev, u32 addr)
	{
	u32 ret;

	mutex_lock(&dev->usb.usb_ctrl_mtx);
	ret = ___mt76u_rr(dev, MT_VEND_READ_EXT,
	USB_DIR_IN \| MT_USB_TYPE_VENDOR, addr);
	mutex_unlock(&dev->usb.usb_ctrl_mtx);

	return ret;
	}

	static void mt7921u_wr(struct mt76_dev *dev, u32 addr, u32 val)
	{
	mutex_lock(&dev->usb.usb_ctrl_mtx);
	___mt76u_wr(dev, MT_VEND_WRITE_EXT,
	USB_DIR_OUT \| MT_USB_TYPE_VENDOR, addr, val);
	mutex_unlock(&dev->usb.usb_ctrl_mtx);
	}

	static u32 mt7921u_rmw(struct mt76_dev *dev, u32 addr,
	u32 mask, u32 val)
	{
	mutex_lock(&dev->usb.usb_ctrl_mtx);
	val \|= ___mt76u_rr(dev, MT_VEND_READ_EXT,
	USB_DIR_IN \| MT_USB_TYPE_VENDOR, addr) & ~mask;
	___mt76u_wr(dev, MT_VEND_WRITE_EXT,
	USB_DIR_OUT \| MT_USB_TYPE_VENDOR, addr, val);
	mutex_unlock(&dev->usb.usb_ctrl_mtx);

	return val;
	}

	static void mt7921u_copy(struct mt76_dev *dev, u32 offset,
	const void *data, int len)
	{
	struct mt76_usb *usb = &dev->usb;
	int ret, i = 0, batch_len;
	const u8 *val = data;

	len = round_up(len, 4);

	mutex_lock(&usb->usb_ctrl_mtx);
	while (i < len) {
	batch_len = min_t(int, usb->data_len, len - i);
	memcpy(usb->data, val + i, batch_len);
	ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT,
	USB_DIR_OUT \| MT_USB_TYPE_VENDOR,
	(offset + i) >> 16, offset + i,
	usb->data, batch_len);
	if (ret < 0)
	break;

	i += batch_len;
	}
	mutex_unlock(&usb->usb_ctrl_mtx);
	}

	int mt7921u_mcu_power_on(struct mt7921_dev *dev)
	{
	int ret;

	ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
	USB_DIR_OUT \| MT_USB_TYPE_VENDOR,
	0x0, 0x1, NULL, 0);
	if (ret)
	return ret;

	if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
	MT_TOP_MISC2_FW_PWR_ON, 500)) {
	dev_err(dev->mt76.dev, "Timeout for power on\n");
	ret = -EIO;
	}

	return ret;
	}

	static int
	mt7921u_mcu_send_message(struct mt76_dev mdev, struct sk_buff skb,
	int cmd, int *seq)
	{
	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
	u32 pad, ep;
	int ret;

	ret = mt7921_mcu_fill_message(mdev, skb, cmd, seq);
	if (ret)
	return ret;

	if (cmd != MCU_CMD(FW_SCATTER))
	ep = MT_EP_OUT_INBAND_CMD;
	else
	ep = MT_EP_OUT_AC_BE;

	mt7921_skb_add_usb_sdio_hdr(dev, skb, 0);
	pad = round_up(skb->len, 4) + 4 - skb->len;
	__skb_put_zero(skb, pad);

	ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL,
	1000, ep);
	dev_kfree_skb(skb);

	return ret;
	}

	static int mt7921u_mcu_init(struct mt7921_dev *dev)
	{
	static const struct mt76_mcu_ops mcu_ops = {
	.headroom = MT_SDIO_HDR_SIZE + sizeof(struct mt7921_mcu_txd),
	.tailroom = MT_USB_TAIL_SIZE,
	.mcu_skb_send_msg = mt7921u_mcu_send_message,
	.mcu_parse_response = mt7921_mcu_parse_response,
	.mcu_restart = mt76_connac_mcu_restart,
	};
	int ret;

	dev->mt76.mcu_ops = &mcu_ops;

	mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
	ret = mt7921_run_firmware(dev);
	if (ret)
	return ret;

	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
	mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);

	return 0;
	}

	static void mt7921u_stop(struct ieee80211_hw *hw)
	{
	struct mt7921_dev *dev = mt7921_hw_dev(hw);

	mt76u_stop_tx(&dev->mt76);
	mt7921_stop(hw);
	}

	static void mt7921u_cleanup(struct mt7921_dev *dev)
	{
	clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
	mt7921u_wfsys_reset(dev);
	mt7921_mcu_exit(dev);
	mt76u_queues_deinit(&dev->mt76);
	}

	static int mt7921u_probe(struct usb_interface *usb_intf,
	const struct usb_device_id *id)
	{
	static const struct mt76_driver_ops drv_ops = {
	.txwi_size = MT_SDIO_TXD_SIZE,
	.drv_flags = MT_DRV_RX_DMA_HDR \| MT_DRV_HW_MGMT_TXQ,
	.survey_flags = SURVEY_INFO_TIME_TX \|
	SURVEY_INFO_TIME_RX \|
	SURVEY_INFO_TIME_BSS_RX,
	.tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb,
	.tx_complete_skb = mt7921_usb_sdio_tx_complete_skb,
	.tx_status_data = mt7921_usb_sdio_tx_status_data,
	.rx_skb = mt7921_queue_rx_skb,
	.sta_ps = mt7921_sta_ps,
	.sta_add = mt7921_mac_sta_add,
	.sta_assoc = mt7921_mac_sta_assoc,
	.sta_remove = mt7921_mac_sta_remove,
	.update_survey = mt7921_update_channel,
	};
	static const struct mt7921_hif_ops hif_ops = {
	.mcu_init = mt7921u_mcu_init,
	.init_reset = mt7921u_init_reset,
	.reset = mt7921u_mac_reset,
	};
	static struct mt76_bus_ops bus_ops = {
	.rr = mt7921u_rr,
	.wr = mt7921u_wr,
	.rmw = mt7921u_rmw,
	.read_copy = mt76u_read_copy,
	.write_copy = mt7921u_copy,
	.type = MT76_BUS_USB,
	};
	struct usb_device *udev = interface_to_usbdev(usb_intf);
	struct ieee80211_ops *ops;
	struct ieee80211_hw *hw;
	struct mt7921_dev *dev;
	struct mt76_dev *mdev;
	int ret;

	ops = devm_kmemdup(&usb_intf->dev, &mt7921_ops, sizeof(mt7921_ops),
	GFP_KERNEL);
	if (!ops)
	return -ENOMEM;

	ops->stop = mt7921u_stop;

	mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
	if (!mdev)
	return -ENOMEM;

	dev = container_of(mdev, struct mt7921_dev, mt76);
	dev->hif_ops = &hif_ops;

	udev = usb_get_dev(udev);
	usb_reset_device(udev);

	usb_set_intfdata(usb_intf, dev);

	ret = __mt76u_init(mdev, usb_intf, &bus_ops);
	if (ret < 0)
	goto error;

	mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) \|
	(mt76_rr(dev, MT_HW_REV) & 0xff);
	dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);

	if (mt76_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY)) {
	ret = mt7921u_wfsys_reset(dev);
	if (ret)
	goto error;
	}

	ret = mt7921u_mcu_power_on(dev);
	if (ret)
	goto error;

	ret = mt76u_alloc_mcu_queue(&dev->mt76);
	if (ret)
	goto error;

	ret = mt76u_alloc_queues(&dev->mt76);
	if (ret)
	goto error;

	ret = mt7921u_dma_init(dev, false);
	if (ret)
	return ret;

	hw = mt76_hw(dev);
	/* check hw sg support in order to enable AMSDU */
	hw->max_tx_fragments = mdev->usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;

	ret = mt7921_register_device(dev);
	if (ret)
	goto error;

	return 0;

	error:
	mt76u_queues_deinit(&dev->mt76);

	usb_set_intfdata(usb_intf, NULL);
	usb_put_dev(interface_to_usbdev(usb_intf));

	mt76_free_device(&dev->mt76);

	return ret;
	}

	static void mt7921u_disconnect(struct usb_interface *usb_intf)
	{
	struct mt7921_dev *dev = usb_get_intfdata(usb_intf);

	cancel_work_sync(&dev->init_work);
	if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
	return;

	mt76_unregister_device(&dev->mt76);
	mt7921u_cleanup(dev);

	usb_set_intfdata(usb_intf, NULL);
	usb_put_dev(interface_to_usbdev(usb_intf));

	mt76_free_device(&dev->mt76);
	}

	#ifdef CONFIG_PM
	static int mt7921u_suspend(struct usb_interface *intf, pm_message_t state)
	{
	struct mt7921_dev *dev = usb_get_intfdata(intf);
	int err;

	err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
	if (err)
	return err;

	mt76u_stop_rx(&dev->mt76);
	mt76u_stop_tx(&dev->mt76);

	set_bit(MT76_STATE_SUSPEND, &dev->mphy.state);

	return 0;
	}

	static int mt7921u_resume(struct usb_interface *intf)
	{
	struct mt7921_dev *dev = usb_get_intfdata(intf);
	bool reinit = true;
	int err, i;

	for (i = 0; i < 10; i++) {
	u32 val = mt76_rr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT);

	if (!(val & MT_WF_SW_SER_TRIGGER_SUSPEND)) {
	reinit = false;
	break;
	}
	if (val & MT_WF_SW_SER_DONE_SUSPEND) {
	mt76_wr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT, 0);
	break;
	}

	msleep(20);
	}

	if (reinit \|\| mt7921_dma_need_reinit(dev)) {
	err = mt7921u_dma_init(dev, true);
	if (err)
	return err;
	}

	clear_bit(MT76_STATE_SUSPEND, &dev->mphy.state);

	err = mt76u_resume_rx(&dev->mt76);
	if (err < 0)
	return err;

	return mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
	}
	#endif /* CONFIG_PM */

	MODULE_DEVICE_TABLE(usb, mt7921u_device_table);
	MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
	MODULE_FIRMWARE(MT7921_ROM_PATCH);

	static struct usb_driver mt7921u_driver = {
	.name = KBUILD_MODNAME,
	.id_table = mt7921u_device_table,
	.probe = mt7921u_probe,
	.disconnect = mt7921u_disconnect,
	#ifdef CONFIG_PM
	.suspend = mt7921u_suspend,
	.resume = mt7921u_resume,
	.reset_resume = mt7921u_resume,
	#endif /* CONFIG_PM */
	.soft_unbind = 1,
	.disable_hub_initiated_lpm = 1,
	};
	module_usb_driver(mt7921u_driver);

	MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
	MODULE_LICENSE("Dual BSD/GPL");