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Define a QCA vendor command to configure SAR Power limits

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There is a regulatory requirement for Specific Absorption Rate (SAR)
whereby the device transmit power is reduced when it is determined that
the device is in close proximity to the body. Implement a vendor command
interface to allow a userspace entity to dynamically control the SAR
power limits.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jeff Johnson 2016-12-05 16:13:36 -08:00 committed by Jouni Malinen
parent 0f5eb69f85
commit c79238b6a4
1 changed files with 125 additions and 0 deletions
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125
src/common/qca-vendor.h
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@ -237,6 +237,12 @@ enum qca_radiotap_vendor_ids {
* started with QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN. This command * started with QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN. This command
* carries the scan cookie of the corresponding scan request. The scan * carries the scan cookie of the corresponding scan request. The scan
* cookie is represented by QCA_WLAN_VENDOR_ATTR_SCAN_COOKIE. * cookie is represented by QCA_WLAN_VENDOR_ATTR_SCAN_COOKIE.
*
* @QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS: Set the Specific
* Absorption Rate (SAR) power limits. A critical regulation for
* FCC compliance, OEMs require methods to set SAR limits on TX
* power of WLAN/WWAN. enum qca_vendor_attr_sar_limits
* attributes are used with this command.
*/ */
enum qca_nl80211_vendor_subcmds { enum qca_nl80211_vendor_subcmds {
QCA_NL80211_VENDOR_SUBCMD_UNSPEC = 0, QCA_NL80211_VENDOR_SUBCMD_UNSPEC = 0,
@ -345,6 +351,7 @@ enum qca_nl80211_vendor_subcmds {
QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS = 143, QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS = 143,
/* 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,
}; };
@ -2214,4 +2221,122 @@ enum qca_wlan_vendor_tdls_trigger_mode {
QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL = 1 << 2, QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL = 1 << 2,
}; };
/**
* enum qca_vendor_attr_sar_limits_selections - Source of SAR power limits
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_NONE: Do not select any
* source of SAR power limits, thereby disabling the SAR power
* limit feature.
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF0: Select SAR profile #0
* that is hard-coded in the Board Data File (BDF).
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF1: Select SAR profile #1
* that is hard-coded in the Board Data File (BDF).
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF2: Select SAR profile #2
* that is hard-coded in the Board Data File (BDF).
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF3: Select SAR profile #3
* that is hard-coded in the Board Data File (BDF).
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF4: Select SAR profile #4
* that is hard-coded in the Board Data File (BDF).
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_USER: Select the SAR power
* limits configured by %QCA_NL80211_VENDOR_SUBCMD_SET_SAR.
*
* This enumerates the valid set of values that may be supplied for
* attribute %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT in an instance of
* the %QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS vendor command.
*/
enum qca_vendor_attr_sar_limits_selections {
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_NONE = 0,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF1 = 1,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF2 = 2,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF3 = 3,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF4 = 4,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF5 = 5,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_USER = 6,
};
/**
* enum qca_vendor_attr_sar_limits_spec_modulations -
* SAR limits specification modulation
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_CCK -
* CCK modulation
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_OFDM -
* OFDM modulation
*
* This enumerates the valid set of values that may be supplied for
* attribute %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION in an
* instance of attribute %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC in an
* instance of the %QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS vendor
* command.
*/
enum qca_vendor_attr_sar_limits_spec_modulations {
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_CCK = 0,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_OFDM = 1,
};
/**
* enum qca_vendor_attr_sar_limits - Attributes for SAR power limits
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT: Optional (u32) value to
* select which SAR power limit table should be used. Valid
* values are enumerated in enum
* %qca_vendor_attr_sar_limits_selections. The existing SAR
* power limit selection is unchanged if this attribute is not
* present.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS: Optional (u32) value
* which specifies the number of SAR power limit specifications
* which will follow.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC: Nested array of SAR power
* limit specifications. The number of specifications is
* specified by @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS. Each
* specification contains a set of
* QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_* attributes. A
* specification is uniquely identified by the attributes
* %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_BAND,
* %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN, and
* %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION and always
* contains as a payload the attribute
* %QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_BAND: Optional (u32) value to
* indicate for which band this specification applies. Valid
* values are enumerated in enum %nl80211_band (although not all
* bands may be supported by a given device). If the attribute is
* not supplied then the specification will be applied to all
* supported bands.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN: Optional (u32) value
* to indicate for which antenna chain this specification
* applies, i.e. 1 for chain 1, 2 for chain 2, etc. If the
* attribute is not supplied then the specification will be
* applied to all chains.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION: Optional (u32)
* value to indicate for which modulation scheme this
* specification applies. Valid values are enumerated in enum
* %qca_vendor_attr_sar_limits_spec_modulations. If the attribute
* is not supplied then the specification will be applied to all
* modulation schemes.
*
* @QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT: Required (u32)
* value to specify the actual power limit value in units of 0.5
* dBm (i.e., a value of 11 represents 5.5 dBm).
*
* These attributes are used with %QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS.
*/
enum qca_vendor_attr_sar_limits {
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_INVALID = 0,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SAR_ENABLE = 1,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS = 2,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC = 3,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_BAND = 4,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN = 5,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION = 6,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT = 7,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_AFTER_LAST,
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX =
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_AFTER_LAST - 1
};
#endif /* QCA_VENDOR_H */ #endif /* QCA_VENDOR_H */