[PATCH] wifi: mt76: mt7921e: add LED control support

[Quan Zhou (周全)]

On Wed, 2024-04-10 at 12:33 +0200, Lorenzo Bianconi wrote:
> [...]
> 
> > +static void mt7921_stop(struct ieee80211_hw *hw)
> > +{
> > +	struct mt792x_dev *dev = mt792x_hw_dev(hw);
> > +	int err = 0;
> > +
> > +	mt792x_mutex_acquire(dev);
> > +	if (mt76_is_mmio(&dev->mt76))
> > +		err = mt7921_mcu_radio_led_ctrl(dev,
> > EXT_CMD_RADIO_OFF_LED);
> > +	mt792x_mutex_release(dev);
> 
> you can avoid waking the device up here if it is not a pci one,
> right?
> 
> Regards,
> Lorenzo
> 
Hi Lorenzo:

Yes, no need wake device if it not pcie one,
I will fix & resend.

B.R
> > +	if (err)
> > +		return;
> > +
> > +	mt792x_stop(hw);
> > +}
> > +
> >  static int
> >  mt7921_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif
> > *vif)
> >  {
> > @@ -1372,7 +1396,7 @@ static void mt7921_mgd_complete_tx(struct
> > ieee80211_hw *hw,
> >  const struct ieee80211_ops mt7921_ops = {
> >  	.tx = mt792x_tx,
> >  	.start = mt7921_start,
> > -	.stop = mt792x_stop,
> > +	.stop = mt7921_stop,
> >  	.add_interface = mt7921_add_interface,
> >  	.remove_interface = mt792x_remove_interface,
> >  	.config = mt7921_config,
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > index 8b4ce32a2cd1..2ebf0ffe78d5 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
> > @@ -606,6 +606,20 @@ int mt7921_run_firmware(struct mt792x_dev
> > *dev)
> >  }
> >  EXPORT_SYMBOL_GPL(mt7921_run_firmware);
> >  
> > +int mt7921_mcu_radio_led_ctrl(struct mt792x_dev *dev, u8 value)
> > +{
> > +	struct {
> > +		u8 ctrlid;
> > +		u8 rsv[3];
> > +	} __packed req = {
> > +		.ctrlid = value,
> > +	};
> > +
> > +	return mt76_mcu_send_msg(&dev->mt76,
> > MCU_EXT_CMD(ID_RADIO_ON_OFF_CTRL),
> > +				&req, sizeof(req), false);
> > +}
> > +EXPORT_SYMBOL_GPL(mt7921_mcu_radio_led_ctrl);
> > +
> >  int mt7921_mcu_set_tx(struct mt792x_dev *dev, struct ieee80211_vif
> > *vif)
> >  {
> >  	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> > b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> > index 3016636d18c6..07023eb9e5b5 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
> > @@ -27,6 +27,10 @@
> >  #define MCU_UNI_EVENT_ROC  0x27
> >  #define MCU_UNI_EVENT_CLC  0x80
> >  
> > +#define EXT_CMD_RADIO_LED_CTRL_ENABLE   0x1
> > +#define EXT_CMD_RADIO_ON_LED            0x2
> > +#define EXT_CMD_RADIO_OFF_LED           0x3
> > +
> >  enum {
> >  	UNI_ROC_ACQUIRE,
> >  	UNI_ROC_ABORT,
> > @@ -196,6 +200,7 @@ int mt7921_mcu_fw_log_2_host(struct mt792x_dev
> > *dev, u8 ctrl);
> >  void mt7921_mcu_rx_event(struct mt792x_dev *dev, struct sk_buff
> > *skb);
> >  int mt7921_mcu_set_rxfilter(struct mt792x_dev *dev, u32 fif,
> >  			    u8 bit_op, u32 bit_map);
> > +int mt7921_mcu_radio_led_ctrl(struct mt792x_dev *dev, u8 value);
> >  
> >  static inline u32
> >  mt7921_reg_map_l1(struct mt792x_dev *dev, u32 addr)
> > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> > b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> > index 0b69b225bc16..f768e9389ac6 100644
> > --- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
> > @@ -427,6 +427,10 @@ static int mt7921_pci_suspend(struct device
> > *device)
> >  	wait_event_timeout(dev->wait,
> >  			   !dev->regd_in_progress, 5 * HZ);
> >  
> > +	err = mt7921_mcu_radio_led_ctrl(dev, EXT_CMD_RADIO_OFF_LED);
> > +	if (err < 0)
> > +		goto restore_suspend;
> > +
> >  	err = mt76_connac_mcu_set_hif_suspend(mdev, true);
> >  	if (err)
> >  		goto restore_suspend;
> > @@ -525,9 +529,11 @@ static int mt7921_pci_resume(struct device
> > *device)
> >  		mt76_connac_mcu_set_deep_sleep(&dev->mt76, false);
> >  
> >  	err = mt76_connac_mcu_set_hif_suspend(mdev, false);
> > +	if (err < 0)
> > +		goto failed;
> >  
> >  	mt7921_regd_update(dev);
> > -
> > +	err = mt7921_mcu_radio_led_ctrl(dev, EXT_CMD_RADIO_ON_LED);
> >  failed:
> >  	pm->suspended = false;
> >  
> > -- 
> > 2.18.0
> >