Commit d0846f08 authored by Sean Wang's avatar Sean Wang Committed by Felix Fietkau
Browse files

mt76: mt7663u: introduce suspend/resume to mt7663u 



Tested on Chromebok by "echo mem to /sys/power/state" to suspend and
then waked up by keyboard keystrokes to resume system.

Signed-off-by: default avatarSean Wang <sean.wang@mediatek.com>
Co-developed-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent c6bf2010

drivers/net/wireless/mediatek/mt76/mt76.h

+1 −0
Original line number Diff line number Diff line
@@ -381,6 +381,7 @@ enum mt_vendor_req { 
	MT_VEND_READ_CFG =	0x47,

	MT_VEND_READ_EXT =	0x63,

	MT_VEND_WRITE_EXT =	0x66,

	MT_VEND_FEATURE_SET =	0x91,

};



enum mt76u_in_ep {

drivers/net/wireless/mediatek/mt76/mt7615/usb.c

+38 −6
Original line number Diff line number Diff line
@@ -372,18 +372,50 @@ static void mt7663u_disconnect(struct usb_interface *usb_intf) 
	ieee80211_free_hw(dev->mt76.hw);

}



static int __maybe_unused

mt7663u_suspend(struct usb_interface *intf,

		pm_message_t state)

#ifdef CONFIG_PM

static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state)

{

	struct mt7615_dev *dev = usb_get_intfdata(intf);



	if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&

	    mt7615_firmware_offload(dev)) {

		int err;



		err = mt7615_mcu_set_hif_suspend(dev, true);

		if (err < 0)

			return err;

	}



	mt76u_stop_rx(&dev->mt76);



	mt76u_stop_tx(&dev->mt76);

	tasklet_kill(&dev->mt76.tx_tasklet);



	return 0;

}



static int __maybe_unused

mt7663u_resume(struct usb_interface *intf)

static int mt7663u_resume(struct usb_interface *intf)

{

	return 0;

	struct mt7615_dev *dev = usb_get_intfdata(intf);

	int err;



	err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET,

				   USB_DIR_OUT | USB_TYPE_VENDOR,

				   0x5, 0x0, NULL, 0);

	if (err)

		return err;



	err = mt76u_resume_rx(&dev->mt76);

	if (err < 0)

		return err;



	if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&

	    mt7615_firmware_offload(dev))

		err = mt7615_mcu_set_hif_suspend(dev, false);



	return err;

}

#endif /* CONFIG_PM */



MODULE_DEVICE_TABLE(usb, mt7615_device_table);

MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);

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