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QCA vendor command to enable host driver offload ACS to user space

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This commit introduces the QCA vendor command and the attributes which
facilitate the host driver to use an external user space entity for
performing automatic channel selection.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Purushottam Kushwaha 2017-01-06 16:57:55 +05:30 committed by Jouni Malinen
parent 6363396325
commit 4c4070005a
1 changed files with 261 additions and 0 deletions
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261
src/common/qca-vendor.h
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@ -243,6 +243,18 @@ enum qca_radiotap_vendor_ids {
* FCC compliance, OEMs require methods to set SAR limits on TX * FCC compliance, OEMs require methods to set SAR limits on TX
* power of WLAN/WWAN. enum qca_vendor_attr_sar_limits * power of WLAN/WWAN. enum qca_vendor_attr_sar_limits
* attributes are used with this command. * attributes are used with this command.
*
* @QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS: This command/event is used by the
* host driver for offloading the implementation of Auto Channel Selection
* (ACS) to an external user space entity. This interface is used as the
* event from the host driver to the user space entity and also as the
* request from the user space entity to the host driver. The event from
* the host driver is used by the user space entity as an indication to
* start the ACS functionality. The attributes used by this event are
* represented by the enum qca_wlan_vendor_attr_external_acs_event.
* User space entity uses the same interface to inform the host driver with
* selected channels after the ACS operation using the attributes defined
* by enum qca_wlan_vendor_attr_external_acs_channels.
*/ */
enum qca_nl80211_vendor_subcmds { enum qca_nl80211_vendor_subcmds {
QCA_NL80211_VENDOR_SUBCMD_UNSPEC = 0, QCA_NL80211_VENDOR_SUBCMD_UNSPEC = 0,
@ -364,6 +376,7 @@ enum qca_nl80211_vendor_subcmds {
/* 144 - reserved for QCA */ /* 144 - reserved for QCA */
QCA_NL80211_VENDOR_SUBCMD_ABORT_SCAN = 145, QCA_NL80211_VENDOR_SUBCMD_ABORT_SCAN = 145,
QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS = 146, QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS = 146,
QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS = 147,
}; };
@ -2940,4 +2953,252 @@ enum qca_wlan_vendor_attr_pno_config_params {
QCA_WLAN_VENDOR_ATTR_PNO_AFTER_LAST - 1, QCA_WLAN_VENDOR_ATTR_PNO_AFTER_LAST - 1,
}; };
/**
* qca_wlan_vendor_acs_select_reason: This represents the different reasons why
* the ACS has to be triggered. These values are used by
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_REASON and
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_REASON
*/
enum qca_wlan_vendor_acs_select_reason {
/* Represents the reason that the ACS triggered during the AP start */
QCA_WLAN_VENDOR_ACS_SELECT_REASON_INIT,
/* Represents the reason that DFS found with the current channel */
QCA_WLAN_VENDOR_ACS_SELECT_REASON_DFS,
/* Represents the reason that LTE co-exist in the current band. */
QCA_WLAN_VENDOR_ACS_SELECT_REASON_LTE_COEX,
};
/**
* qca_wlan_vendor_channel_prop_flags: This represent the flags for a channel.
* This is used by QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAGS.
*/
enum qca_wlan_vendor_channel_prop_flags {
/* Bits 0, 1, 2, and 3 are reserved */
/* Turbo channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_TURBO = 1 << 4,
/* CCK channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_CCK = 1 << 5,
/* OFDM channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_OFDM = 1 << 6,
/* 2.4 GHz spectrum channel. */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_2GHZ = 1 << 7,
/* 5 GHz spectrum channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_5GHZ = 1 << 8,
/* Only passive scan allowed */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_PASSIVE = 1 << 9,
/* Dynamic CCK-OFDM channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_DYN = 1 << 10,
/* GFSK channel (FHSS PHY) */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_GFSK = 1 << 11,
/* Radar found on channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_RADAR = 1 << 12,
/* 11a static turbo channel only */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_STURBO = 1 << 13,
/* Half rate channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HALF = 1 << 14,
/* Quarter rate channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_QUARTER = 1 << 15,
/* HT 20 channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HT20 = 1 << 16,
/* HT 40 with extension channel above */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HT40PLUS = 1 << 17,
/* HT 40 with extension channel below */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HT40MINUS = 1 << 18,
/* HT 40 intolerant */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HT40INTOL = 1 << 19,
/* VHT 20 channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT20 = 1 << 20,
/* VHT 40 with extension channel above */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT40PLUS = 1 << 21,
/* VHT 40 with extension channel below */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT40MINUS = 1 << 22,
/* VHT 80 channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT80 = 1 << 23,
/* HT 40 intolerant mark bit for ACS use */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_HT40INTOLMARK = 1 << 24,
/* Channel temporarily blocked due to noise */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_BLOCKED = 1 << 25,
/* VHT 160 channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT160 = 1 << 26,
/* VHT 80+80 channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_VHT80_80 = 1 << 27,
};
/**
* qca_wlan_vendor_channel_prop_flags_ext: This represent the extended flags for
* each channel. This is used by
* QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAG_EXT.
*/
enum qca_wlan_vendor_channel_prop_flags_ext {
/* Radar found on channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_RADAR_FOUND = 1 << 0,
/* DFS required on channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_DFS = 1 << 1,
/* DFS required on channel for 2nd band of 80+80 */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_DFS_CFREQ2 = 1 << 2,
/* If channel has been checked for DFS */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_DFS_CLEAR = 1 << 3,
/* Excluded in 802.11d */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_11D_EXCLUDED = 1 << 4,
/* Channel Switch Announcement received on this channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_CSA_RECEIVED = 1 << 5,
/* Ad-hoc is not allowed */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_DISALLOW_ADHOC = 1 << 6,
/* Station only channel */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_DISALLOW_HOSTAP = 1 << 7,
/* DFS radar history for slave device (STA mode) */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_HISTORY_RADAR = 1 << 8,
/* DFS CAC valid for slave device (STA mode) */
QCA_WLAN_VENDOR_CHANNEL_PROP_FLAG_EXT_CAC_VALID = 1 << 9,
};
/**
* qca_wlan_vendor_external_acs_event_chan_info_attr: Represents per channel
* information. These attributes are sent as part of
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_INFO. Each set of the following
* attributes correspond to a single channel.
*/
enum qca_wlan_vendor_external_acs_event_chan_info_attr {
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_INVALID = 0,
/* A bitmask (u32) with flags specified in
* enum qca_wlan_vendor_channel_prop_flags.
*/
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAGS = 1,
/* A bitmask (u32) with flags specified in
* enum qca_wlan_vendor_channel_prop_flags_ext.
*/
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAG_EXT = 2,
/* frequency in MHz (u32) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FREQ = 3,
/* maximum regulatory transmission power (u32) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MAX_REG_POWER = 4,
/* maximum transmission power (u32) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MAX_POWER = 5,
/* minimum transmission power (u32) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MIN_POWER = 6,
/* regulatory class id (u8) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_REG_CLASS_ID = 7,
/* maximum antenna gain in (u8) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_ANTENNA_GAIN = 8,
/* VHT segment 0 (u8) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_VHT_SEG_0 = 9,
/* VHT segment 1 (u8) */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_VHT_SEG_1 = 10,
/* keep last */
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_LAST,
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MAX =
QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_LAST - 1,
};
/**
* qca_wlan_vendor_attr_pcl: Represents attributes for
* preferred channel list (PCL). These attributes are sent as part of
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_PCL.
*/
enum qca_wlan_vendor_attr_pcl {
QCA_WLAN_VENDOR_ATTR_PCL_INVALID = 0,
/* Channel number (u8) */
QCA_WLAN_VENDOR_ATTR_PCL_CHANNEL = 1,
/* Channel weightage (u8) */
QCA_WLAN_VENDOR_ATTR_PCL_WEIGHT = 2,
};
/**
* qca_wlan_vendor_attr_external_acs_event: Attribute to vendor sub-command
* QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS. This attribute will be sent by
* host driver.
*/
enum qca_wlan_vendor_attr_external_acs_event {
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_INVALID = 0,
/* This reason (u8) refers to enum qca_wlan_vendor_acs_select_reason.
* This helps ACS module to understand why ACS needs to be started.
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_REASON = 1,
/* Flag attribute to indicate if driver supports spectral scanning */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_IS_SPECTRAL_SUPPORTED = 2,
/* Flag attribute to indicate if 11ac is offloaded to firmware */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_IS_OFFLOAD_ENABLED = 3,
/* Flag attribute to indicate if driver provides additional channel
* capability as part of scan operation */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_ADD_CHAN_STATS_SUPPORT = 4,
/* Flag attribute to indicate interface status is UP */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_AP_UP = 5,
/* Operating mode (u8) of interface. Takes one of enum nl80211_iftype
* values. */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_SAP_MODE = 6,
/* Channel width (u8). It takes one of enum nl80211_chan_width values.
* This is the upper bound of channel width. ACS logic should try to get
* a channel with the specified width and if not found, look for lower
* values.
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_WIDTH = 7,
/* This (u8) will hold values of one of enum nl80211_bands */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_BAND = 8,
/* PHY/HW mode (u8). Takes one of enum qca_wlan_vendor_acs_hw_mode
* values */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_PHY_MODE = 9,
/* Array of (u32) supported frequency list among which ACS should choose
* best frequency.
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_FREQ_LIST = 10,
/* Preferred channel list by the driver which will have array of nested
* values as per enum qca_wlan_vendor_attr_pcl attribute.
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_PCL = 11,
/* Array of nested attribute for each channel. It takes attr as defined
* in enum qca_wlan_vendor_external_acs_event_chan_info_attr.
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_INFO = 12,
/* keep last */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_LAST,
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_MAX =
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_LAST - 1,
};
/**
* qca_wlan_vendor_attr_external_acs_channels: Attributes to vendor subcmd
* QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS. This carries a list of channels
* in priority order as decided after ACS operation in userspace.
*/
enum qca_wlan_vendor_attr_external_acs_channels {
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_INVALID = 0,
/* One of reason code (u8) from enum qca_wlan_vendor_acs_select_reason
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_REASON = 1,
/* Array of nested values for each channel with following attributes:
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_BAND,
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_PRIMARY,
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_SECONDARY,
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG0,
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG1,
* QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_WIDTH
*/
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_LIST = 2,
/* This (u8) will hold values of one of enum nl80211_bands */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_BAND = 3,
/* Primary channel (u8) */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_PRIMARY = 4,
/* Secondary channel (u8) used for HT 40 MHz channels */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_SECONDARY = 5,
/* VHT seg0 channel (u8) */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG0 = 6,
/* VHT seg1 channel (u8) */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG1 = 7,
/* Channel width (u8). Takes one of enum nl80211_chan_width values. */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_WIDTH = 8,
/* keep last */
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_LAST,
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_MAX =
QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_LAST - 1
};
#endif /* QCA_VENDOR_H */ #endif /* QCA_VENDOR_H */