drivers/net/wireless/intel/iwlwifi/mvm/ops.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/intel/iwlwifi/mvm/ops.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/intel/iwlwifi/mvm/ops.c
Extension
.c
Size
63045 bytes
Lines
2150
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

module_init(iwl_mvm_init);

static void __exit iwl_mvm_exit(void)
{
	iwl_opmode_deregister("iwlmvm");
	iwl_mvm_rate_control_unregister();
}
module_exit(iwl_mvm_exit);

static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
{
	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
	u32 reg_val;
	u32 phy_config = iwl_mvm_get_phy_config(mvm);

	radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
			 FW_PHY_CFG_RADIO_TYPE_POS;
	radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
			 FW_PHY_CFG_RADIO_STEP_POS;
	radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
			 FW_PHY_CFG_RADIO_DASH_POS;

	IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
		       radio_cfg_step, radio_cfg_dash);

	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
		return;

	/* SKU control */
	reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->info.hw_rev);

	/* radio configuration */
	reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
	reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
	reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;

	WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
		 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);

	/*
	 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
	 * sampling, and shouldn't be set to any non-zero value.
	 * The same is supposed to be true of the other HW, but unsetting
	 * them (such as the 7260) causes automatic tests to fail on seemingly
	 * unrelated errors. Need to further investigate this, but for now
	 * we'll separate cases.
	 */
	if (mvm->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_8000)
		reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;

	if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
		reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;

	iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
				CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
				CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
				CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
				CSR_HW_IF_CONFIG_REG_BIT_MAC_SI   |
				CSR_HW_IF_CONFIG_REG_D3_DEBUG,
				reg_val);

	/*
	 * W/A : NIC is stuck in a reset state after Early PCIe power off
	 * (PCIe power is lost before PERST# is asserted), causing ME FW
	 * to lose ownership and not being able to obtain it back.
	 */
	if (!mvm->trans->mac_cfg->base->apmg_not_supported)
		iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
				       APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
				       ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
}

static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
				     struct iwl_rx_cmd_buffer *rxb)
{
	struct iwl_rx_packet *pkt = rxb_addr(rxb);
	struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
	struct ieee80211_supported_band *sband;
	const struct ieee80211_sta_he_cap *he_cap;
	struct ieee80211_vif *vif;

	if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
		return;

	/* FIXME: should fetch the link and not the vif */
	vif = iwl_mvm_get_vif_by_macid(mvm, notif->link_id);
	if (!vif || vif->type != NL80211_IFTYPE_STATION)

Annotation

Implementation Notes