drivers/net/wireless/mediatek/mt76/mt7921/main.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/mediatek/mt76/mt7921/main.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/mediatek/mt76/mt7921/main.c
Extension
.c
Size
44232 bytes
Lines
1619
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (i) {
		case NL80211_IFTYPE_STATION:
		case NL80211_IFTYPE_AP:
			break;
		default:
			continue;
		}

		data[idx].types_mask = BIT(i);
		he_cap->has_he = true;

		he_cap_elem->mac_cap_info[0] =
			IEEE80211_HE_MAC_CAP0_HTC_HE;
		he_cap_elem->mac_cap_info[3] =
			IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
		he_cap_elem->mac_cap_info[4] =
			IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;

		if (band == NL80211_BAND_2GHZ)
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
		else
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;

		he_cap_elem->phy_cap_info[1] =
			IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
		he_cap_elem->phy_cap_info[2] =
			IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
			IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
			IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
			IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
			IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;

		switch (i) {
		case NL80211_IFTYPE_AP:
			he_cap_elem->mac_cap_info[2] |=
				IEEE80211_HE_MAC_CAP2_BSR;
			he_cap_elem->mac_cap_info[4] |=
				IEEE80211_HE_MAC_CAP4_BQR;
			he_cap_elem->mac_cap_info[5] |=
				IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			he_cap_elem->phy_cap_info[9] |=
				IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
				IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;

			if (is_mt7922(phy->mt76->dev)) {
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
			}
			break;
		case NL80211_IFTYPE_STATION:
			he_cap_elem->mac_cap_info[1] |=
				IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;

			if (band == NL80211_BAND_2GHZ)
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
			else
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;

			he_cap_elem->phy_cap_info[1] |=
				IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
				IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[4] |=
				IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
				IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4;
			he_cap_elem->phy_cap_info[5] |=
				IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
				IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
				IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
				IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
				IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			he_cap_elem->phy_cap_info[7] |=
				IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
				IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;

Annotation

Implementation Notes