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srini-purelifiKalle Valo
srini-purelifi
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Kalle Valo
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wireless: add plfxlc driver for pureLiFi X, XL, XC devices
This is a driver for pureLiFi X, XL, XC devices which use light to transmit data, so they are not compatible with normal Wi-Fi devices. The driver uses separate NL80211_BAND_LC band to distinguish from Wi-Fi. The driver is based on 802.11 softMAC Architecture and uses native 802.11 for configuration and management. Station and Ad-Hoc modes are supported. The driver is compiled and tested in ARM, x86 architectures and compiled in powerpc architecture. This driver implementation has been based on the zd1211rw driver. Signed-off-by: Srinivasan Raju <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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‎MAINTAINERS‎

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@@ -15970,6 +15970,12 @@ T: git git://linuxtv.org/media_tree.git
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F: Documentation/admin-guide/media/pulse8-cec.rst
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F: drivers/media/cec/usb/pulse8/
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PURELIFI PLFXLC DRIVER
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M: Srinivasan Raju <[email protected]>
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L: [email protected]
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S: Supported
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F: drivers/net/wireless/purelifi/plfxlc/
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PVRUSB2 VIDEO4LINUX DRIVER
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M: Mike Isely <[email protected]>
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L: [email protected] (subscribers-only)

‎drivers/net/wireless/Kconfig‎

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@@ -28,6 +28,7 @@ source "drivers/net/wireless/intersil/Kconfig"
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source "drivers/net/wireless/marvell/Kconfig"
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source "drivers/net/wireless/mediatek/Kconfig"
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source "drivers/net/wireless/microchip/Kconfig"
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source "drivers/net/wireless/purelifi/Kconfig"
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source "drivers/net/wireless/ralink/Kconfig"
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source "drivers/net/wireless/realtek/Kconfig"
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source "drivers/net/wireless/rsi/Kconfig"

‎drivers/net/wireless/Makefile‎

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@@ -13,6 +13,7 @@ obj-$(CONFIG_WLAN_VENDOR_INTERSIL) += intersil/
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obj-$(CONFIG_WLAN_VENDOR_MARVELL) += marvell/
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obj-$(CONFIG_WLAN_VENDOR_MEDIATEK) += mediatek/
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obj-$(CONFIG_WLAN_VENDOR_MICROCHIP) += microchip/
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obj-$(CONFIG_WLAN_VENDOR_PURELIFI) += purelifi/
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obj-$(CONFIG_WLAN_VENDOR_RALINK) += ralink/
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obj-$(CONFIG_WLAN_VENDOR_REALTEK) += realtek/
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obj-$(CONFIG_WLAN_VENDOR_RSI) += rsi/

‎drivers/net/wireless/purelifi/Kconfig‎

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# SPDX-License-Identifier: GPL-2.0-only
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config WLAN_VENDOR_PURELIFI
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bool "pureLiFi devices"
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default y
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help
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If you have a pureLiFi device, say Y.
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Note that the answer to this question doesn't directly affect the
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kernel: saying N will just cause the configurator to skip all the
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questions about these cards. If you say Y, you will be asked for
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your specific card in the following questions.
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if WLAN_VENDOR_PURELIFI
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source "drivers/net/wireless/purelifi/plfxlc/Kconfig"
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endif # WLAN_VENDOR_PURELIFI

‎drivers/net/wireless/purelifi/Makefile‎

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# SPDX-License-Identifier: GPL-2.0-only
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obj-$(CONFIG_PLFXLC) := plfxlc/

‎drivers/net/wireless/purelifi/plfxlc/Kconfig‎

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# SPDX-License-Identifier: GPL-2.0-only
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config PLFXLC
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tristate "pureLiFi X, XL, XC device support"
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depends on CFG80211 && MAC80211 && USB
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help
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This option adds support for pureLiFi LiFi wireless USB
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adapters. The pureLiFi X, XL, XC USB devices are based on
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802.11 OFDM PHY but uses light as the transmission medium.
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The driver supports common 802.11 encryption/authentication
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methods including Open, WPA, WPA2-Personal and
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WPA2-Enterprise (802.1X).
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To compile this driver as a module, choose m here. The module will
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be called plfxlc.

‎drivers/net/wireless/purelifi/plfxlc/Makefile‎

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# SPDX-License-Identifier: GPL-2.0-only
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obj-$(CONFIG_PLFXLC) := plfxlc.o
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plfxlc-objs += chip.o firmware.o usb.o mac.o

‎drivers/net/wireless/purelifi/plfxlc/chip.c‎

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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2021 pureLiFi
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*/
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include "chip.h"
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#include "mac.h"
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#include "usb.h"
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void plfxlc_chip_init(struct plfxlc_chip *chip,
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struct ieee80211_hw *hw,
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struct usb_interface *intf)
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{
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memset(chip, 0, sizeof(*chip));
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mutex_init(&chip->mutex);
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plfxlc_usb_init(&chip->usb, hw, intf);
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}
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void plfxlc_chip_release(struct plfxlc_chip *chip)
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{
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plfxlc_usb_release(&chip->usb);
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mutex_destroy(&chip->mutex);
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}
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int plfxlc_set_beacon_interval(struct plfxlc_chip *chip, u16 interval,
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u8 dtim_period, int type)
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{
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if (!interval ||
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(chip->beacon_set &&
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le16_to_cpu(chip->beacon_interval) == interval))
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return 0;
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chip->beacon_interval = cpu_to_le16(interval);
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chip->beacon_set = true;
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return plfxlc_usb_wreq(chip->usb.ez_usb,
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&chip->beacon_interval,
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sizeof(chip->beacon_interval),
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USB_REQ_BEACON_INTERVAL_WR);
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}
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int plfxlc_chip_init_hw(struct plfxlc_chip *chip)
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{
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unsigned char *addr = plfxlc_mac_get_perm_addr(plfxlc_chip_to_mac(chip));
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struct usb_device *udev = interface_to_usbdev(chip->usb.intf);
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pr_info("plfxlc chip %04x:%04x v%02x %pM %s\n",
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le16_to_cpu(udev->descriptor.idVendor),
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le16_to_cpu(udev->descriptor.idProduct),
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le16_to_cpu(udev->descriptor.bcdDevice),
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addr,
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plfxlc_speed(udev->speed));
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return plfxlc_set_beacon_interval(chip, 100, 0, 0);
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}
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int plfxlc_chip_switch_radio(struct plfxlc_chip *chip, u16 value)
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{
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int r;
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__le16 radio_on = cpu_to_le16(value);
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r = plfxlc_usb_wreq(chip->usb.ez_usb, &radio_on,
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sizeof(value), USB_REQ_POWER_WR);
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if (r)
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dev_err(plfxlc_chip_dev(chip), "POWER_WR failed (%d)\n", r);
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return r;
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}
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int plfxlc_chip_enable_rxtx(struct plfxlc_chip *chip)
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{
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plfxlc_usb_enable_tx(&chip->usb);
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return plfxlc_usb_enable_rx(&chip->usb);
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}
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void plfxlc_chip_disable_rxtx(struct plfxlc_chip *chip)
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{
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u8 value = 0;
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plfxlc_usb_wreq(chip->usb.ez_usb,
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&value, sizeof(value), USB_REQ_RXTX_WR);
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plfxlc_usb_disable_rx(&chip->usb);
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plfxlc_usb_disable_tx(&chip->usb);
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}
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int plfxlc_chip_set_rate(struct plfxlc_chip *chip, u8 rate)
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{
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int r;
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if (!chip)
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return -EINVAL;
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r = plfxlc_usb_wreq(chip->usb.ez_usb,
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&rate, sizeof(rate), USB_REQ_RATE_WR);
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if (r)
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dev_err(plfxlc_chip_dev(chip), "RATE_WR failed (%d)\n", r);
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return r;
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}

‎drivers/net/wireless/purelifi/plfxlc/chip.h‎

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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2021 pureLiFi
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*/
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#ifndef PLFXLC_CHIP_H
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#define PLFXLC_CHIP_H
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#include <net/mac80211.h>
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#include "usb.h"
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enum unit_type {
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STA = 0,
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AP = 1,
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};
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enum {
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PLFXLC_RADIO_OFF = 0,
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PLFXLC_RADIO_ON = 1,
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};
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struct plfxlc_chip {
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struct plfxlc_usb usb;
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struct mutex mutex; /* lock to protect chip data */
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enum unit_type unit_type;
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u16 link_led;
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u8 beacon_set;
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u16 beacon_interval;
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};
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struct plfxlc_mc_hash {
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u32 low;
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u32 high;
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};
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#define plfxlc_chip_dev(chip) (&(chip)->usb.intf->dev)
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void plfxlc_chip_init(struct plfxlc_chip *chip,
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struct ieee80211_hw *hw,
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struct usb_interface *intf);
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void plfxlc_chip_release(struct plfxlc_chip *chip);
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void plfxlc_chip_disable_rxtx(struct plfxlc_chip *chip);
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int plfxlc_chip_init_hw(struct plfxlc_chip *chip);
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int plfxlc_chip_enable_rxtx(struct plfxlc_chip *chip);
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int plfxlc_chip_set_rate(struct plfxlc_chip *chip, u8 rate);
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int plfxlc_set_beacon_interval(struct plfxlc_chip *chip, u16 interval,
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u8 dtim_period, int type);
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int plfxlc_chip_switch_radio(struct plfxlc_chip *chip, u16 value);
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static inline struct plfxlc_chip *plfxlc_usb_to_chip(struct plfxlc_usb
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*usb)
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{
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return container_of(usb, struct plfxlc_chip, usb);
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}
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static inline void plfxlc_mc_add_all(struct plfxlc_mc_hash *hash)
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{
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hash->low = 0xffffffff;
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hash->high = 0xffffffff;
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}
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#endif /* PLFXLC_CHIP_H */

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