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Re: [PATCH 2/4] cfg80211: Add new NL80211_CMD_SET_BTCOEX_PRIORITY to support BTCOEX

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On Tue, 2016-11-08 at 18:45 +0530, c_traja@xxxxxxxxxxxxxxxx wrote:
> 
> + * struct cfg80211_btcoex_priority - BTCOEX support frame type
> + *
> + * This structure defines the driver supporting frame types for
> BTCOEX
> + *
> + * @wlan_be_preferred: best effort frames preferred over bt traffic
> + * @wlan_bk_preferred: background frames preferred over bt traffic
> + * @wlan_vi_preferred: video frames preferred over bt traffic
> + * @wlan_vo_preferred: voice frames preferred over bt traffic
> + * @wlan_beacon_preferred: beacon preferred over bt traffic
> + * @wlan_mgmt_preferred: management frames preferred ovet bt traffic

typo: over

>  
>  /**
> + * wiphy_btcoex_support_flags
> + *	This enum has the driver supported frame types for BTCOEX.
> + * @WIPHY_WLAN_BE_PREFERRED - Supports Best Effort frame for BTCOEX
> + * @WIPHY_WLAN_BK_PREFERRED - supports Background frame for BTCOEX
> + * @WIPHY_WLAN_VI_PREFERRED - supports Video frame for BTCOEX
> + * @WIPHY_WLAN_VO_PREFERRED - supports Voice frame for BTCOEX
> + * @WIPHY_WLAN_BEACON_PREFERRED - supports Beacon frame for BTCOEX
> + * @WIPHY_WLAN_MGMT_PREFERRED - supports Management frames for
> BTCOEX.
> + */

That's not making much sense to me?

> +/**
> + * enum wiphy_btcoex_priority - BTCOEX priority level
> + *	This enum defines priority level for BTCOEX
> + * WIPHY_WLAN_PREFERRED_LOW - low priority frames over BT traffic
> + * WIPHY_WLAN_PREFERRED_HIGH - high priority frames over BT traffic
> + */
> +
> +enum wiphy_btcoex_priority {
> +	WIPHY_WLAN_PREFERRED_LOW = false,
> +	WIPHY_WLAN_PREFERRED_HIGH = true,
> +};

That false/true seems just strange.

> + * @btcoex_support_flags: This will have the driver supported
> + *	frame types for BTCOEX. This value filled by using
> + *	%enum wiphy_btcoex_support_flags while driver
> + *	initialization.

The whole "will have" isn't really clear.

> + * @NL80211_ATTR_SET_BTCOEX_PRIORITY: nested attribute for driver
> supporting
> + *	the BTCOEX. When used with
> %NL80211_CMD_SET_BTCOEX_PRIORITY it contains
> + *	attributes according &enum nl80211_btcoex_priority to
> indicate
> + *	which frame has high priority over BT.

There should be no "SET" in there.

>  /**
> + * enum nl80211_btcoex_priority - BTCOEX parameter attributes
> + *	This strcuture has enum values for driver supported wlan
> + *	frame type for BTCOEX.
> + * @NL80211_WLAN_BE_PREFERRED - Best Effort frame
> + * @NL80211_WLAN_BK_PREFERRED - Background frame
> + * @NL80211_WLAN_VI_PREFERRED - Video frame
> + * @NL80211_WLAN_VO_PREFERRED - Voice frame
> + * @NL80211_WLAN_BEACON_PREFERRED - BEACON frame
> + * @NL80211_WLAN_MGMT_PREFERRED - MGMT frame
> + */
> +
> +enum nl80211_btcoex_priority {
> +	__NL80211_WLAN_PREFERRED_INVALID,
> +	NL80211_WLAN_BE_PREFERRED,
> +	NL80211_WLAN_BK_PREFERRED,
> +	NL80211_WLAN_VI_PREFERRED,
> +	NL80211_WLAN_VO_PREFERRED,
> +	NL80211_WLAN_BEACON_PREFERRED,
> +	NL80211_WLAN_MGMT_PREFERRED,
> +	__NL80211_WLAN_PREFERRED_LAST,
> +	NL80211_WLAN_PREFERRED_MAX =
> +			__NL80211_WLAN_PREFERRED_LAST - 1,
> +};

Wouldn't a bitmap be easier?

johannes



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