net: cnss2: Add snapshot of CNSS2 driver (97f795f8) · Commits · e / devices / android_kernel_oneplus_sm8150

Documentation/devicetree/bindings/cnss/cnss-wlan.txt

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		* Qualcomm Technologies, Inc. ConNectivity SubSystem Platform Driver

		This platform driver adds support for the CNSS subsystem used for PCIe
		based Wi-Fi devices. It also adds support to integrate PCIe WLAN module
		to subsystem restart framework. Apart from that, it also manages the
		3.3V voltage regulator, WLAN Enable GPIO signal and PCIe link dynamically
		with support for suspend and resume by retaining the PCI config space
		states when PCIe link is shutdown. The main purpose of this device tree
		entry below is to invoke the CNSS platform driver and provide handle to
		the WLAN enable GPIO, 3.3V fixed voltage regulator resources. It also
		provides the reserved RAM dump memory location and size.

		Required properties:
		- compatible: "qcom,cnss" for QCA6174 device
		"qcom,cnss-qca6290" for QCA6290 device
		"qcom,cnss-qca6390" for QCA6390 device
		- wlan-en-gpio: WLAN_EN GPIO signal specified by the chip specifications
		- vdd-wlan-supply: phandle to the regulator device tree node
		- pinctrl-names: Names corresponding to the numbered pinctrl states
		- pinctrl-<n>: Pinctrl states as described in
		bindings/pinctrl/pinctrl-bindings.txt
		- qcom,wlan-rc-num: PCIe root complex number which WLAN chip is attached to

		Optional properties:
		- qcom,notify-modem-status: Boolean property to decide whether modem
		notification should be enabled or not in this
		platform
		- wlan-soc-swreg-supply: phandle to the external 1.15V regulator for QCA6174
		- wlan-ant-switch-supply: phandle to the 2.7V regulator for the antenna
		switch of QCA6174
		- qcom,wlan-uart-access: Boolean property to decide whether QCA6174
		has exclusive access to UART.
		- vdd-wlan-io-supply: phandle to the 1.8V IO regulator for QCA6174
		- vdd-wlan-xtal-supply: phandle to the 1.8V XTAL regulator for QCA6174
		- vdd-wlan-xtal-aon-supply: phandle to the LDO-4 regulator. This is needed
		on platforms where XTAL regulator depends on
		always on regulator in VDDmin.
		- vdd-wlan-core-supply: phandle to the 1.3V CORE regulator for QCA6174
		- vdd-wlan-sp2t-supply: phandle to the 2.7V SP2T regulator for QCA6174
		- qcom,smmu-s1-enable: Boolean property to decide whether to enable SMMU
		S1 stage or not
		- qcom,wlan-smmu-iova-address: I/O virtual address range as <start length>
		format to be used for allocations associated
		between WLAN/PCIe and SMMU
		- qcom,wlan-ramdump-dynamic: To enable CNSS RAMDUMP collection
		by providing the size of CNSS DUMP
		- reg: Memory regions defined as starting address and size
		- reg-names: Names of the memory regions defined in reg entry
		- wlan-bootstrap-gpio: WLAN_BOOTSTRAP GPIO signal specified by QCA6174
		which should be drived depending on platforms
		- qcom,is-dual-wifi-enabled: Boolean property to control wlan enable(wlan-en)
		gpio on dual-wifi platforms.
		- vdd-wlan-en-supply: WLAN_EN fixed regulator specified by QCA6174
		specifications.
		- qcom,wlan-en-vreg-support: Boolean property to decide the whether the
		WLAN_EN pin is a gpio or fixed regulator.
		- qcom,mhi: phandle to indicate the device which needs MHI support.
		- qcom,cap-tsf-gpio: WLAN_TSF_CAPTURED GPIO signal specified by the chip
		specifications, should be drived depending on products

		Example:

		qcom,cnss@0d400000 {
		compatible = "qcom,cnss";
		reg = <0x0d400000 0x200000>;
		reg-names = "ramdump";
		qcom,wlan-ramdump-dynamic = <0x200000>;
		wlan-en-gpio = <&msmgpio 82 0>;
		vdd-wlan-supply = <&wlan_vreg>;
		qcom,notify-modem-status;
		wlan-soc-swreg-supply = <&pma8084_l27>;
		pinctrl-names = "default";
		pinctrl-0 = <&cnss_default>;
		qcom,wlan-rc-num = <0>;
		qcom,wlan-smmu-iova-address = <0 0x10000000>;
		qcom,mhi = <&mhi_wlan>;
		qcom,cap-tsf-gpio = <&tlmm 126 1>;
		};

drivers/net/wireless/Kconfig

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		@@ -135,6 +135,7 @@ config CLD_LL_CORE
		Select Y to compile the driver in order to have WLAN functionality
		support.

		source "drivers/net/wireless/cnss2/Kconfig"
		source "drivers/net/wireless/cnss_utils/Kconfig"
		source "drivers/net/wireless/cnss_genl/Kconfig"

drivers/net/wireless/Makefile

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		@@ -28,6 +28,8 @@ obj-$(CONFIG_USB_NET_RNDIS_WLAN) += rndis_wlan.o

		obj-$(CONFIG_MAC80211_HWSIM) += mac80211_hwsim.o

		obj-$(CONFIG_CNSS2) += cnss2/

		obj-$(CONFIG_WCNSS_MEM_PRE_ALLOC) += cnss_prealloc/
		obj-$(CONFIG_CNSS_UTILS) += cnss_utils/
		obj-$(CONFIG_CNSS_GENL) += cnss_genl/

drivers/net/wireless/cnss2/Kconfig

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		config CNSS2
		tristate "CNSS2 Platform Driver for Wi-Fi Module"
		depends on !CNSS && PCI_MSM
		---help---
		This module adds the support for Connectivity Subsystem (CNSS) used
		for PCIe based Wi-Fi devices with QCA6174/QCA6290 chipsets.
		This driver also adds support to integrate WLAN module to subsystem
		restart framework.

		config CNSS2_DEBUG
		bool "CNSS2 Platform Driver Debug Support"
		depends on CNSS2
		---help---
		This option is to enable CNSS2 platform driver debug support which
		primarily includes providing additional verbose logs for certain
		features, enabling kernel panic for certain cases to aid the
		debugging, and enabling any other debug mechanisms.

		config CNSS2_QMI
		bool "CNSS2 Platform Driver QMI support"
		depends on CNSS2
		---help---
		CNSS2 platform driver uses QMI framework to communicate with WLAN
		firmware. It sends and receives boot handshake messages to WLAN
		firmware, which includes hardware and software capabilities and
		configurations. It also sends WLAN on/off control message to
		firmware over QMI channel.

		config CNSS_ASYNC
		bool "Enable/disable CNSS platform driver asynchronous probe"
		depends on CNSS2
		---help---
		If enabled, CNSS platform driver would do asynchronous probe.
		Using asynchronous probe will allow CNSS platform driver to
		probe in parallel with other device drivers and will help to
		reduce kernel boot time.

		config BUS_AUTO_SUSPEND
		bool "Enable/Disable Runtime PM support for PCIe based WLAN Drivers"
		depends on CNSS2
		depends on PCI
		---help---
		Runtime Power Management is supported for PCIe based WLAN Drivers.
		The features enable cld wlan driver to suspend pcie bus when APPS
		is awake based on the driver inactivity with the Firmware.
		The Feature uses runtime power management framework from kernel to
		track bus access clients and to synchronize the driver activity
		during system pm.
		This config flag controls the feature per target based. The feature
		requires CNSS driver support.

		config CNSS_QCA6290
		bool "Enable CNSS QCA6290 chipset specific changes"
		---help---
		This enables the changes from WLAN host driver that are specific to
		CNSS QCA6290 chipset.
		These changes are needed to support the new hardware architecture
		for CNSS QCA6290 chipset.

		config CNSS_QCA6390
		bool "Enable CNSS QCA6390 chipset specific changes"
		---help---
		This enables the changes from WLAN host driver that are specific to
		CNSS QCA6390 chipset.
		These changes are needed to support the new hardware architecture
		for CNSS QCA6390 chipset.

		config CNSS_EMULATION
		bool "Enable specific changes for emulation hardware"
		---help---
		This enables the changes from WLAN drivers that are specific to
		emulation hardware.
		These changes are needed for WLAN drivers to support and meet the
		requirement of emulation hardware.

drivers/net/wireless/cnss2/Makefile

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		obj-$(CONFIG_CNSS2) += cnss2.o

		cnss2-y := main.o
		cnss2-y += bus.o
		cnss2-y += debug.o
		cnss2-y += pci.o
		cnss2-y += power.o
		cnss2-$(CONFIG_CNSS2_QMI) += qmi.o wlan_firmware_service_v01.o