mt76: add driver code for MT76x2u based devices (ee676cd5) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/net/wireless/mediatek/mt76/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -17,3 +17,13 @@ config MT76x2E
		depends on PCI
		---help---
		This adds support for MT7612/MT7602/MT7662-based wireless PCIe devices.

		config MT76x2U
		tristate "MediaTek MT76x2U (USB) support"
		select MT76_CORE
		select MT76_USB
		select MT76x2_COMMON
		depends on MAC80211
		depends on USB
		help
		This adds support for MT7612U-based wireless USB dongles.

drivers/net/wireless/mediatek/mt76/Makefile

+5 −0

Original line number	Diff line number	Diff line
		@@ -2,6 +2,7 @@ obj-$(CONFIG_MT76_CORE) += mt76.o
		obj-$(CONFIG_MT76_USB) += mt76-usb.o
		obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
		obj-$(CONFIG_MT76x2E) += mt76x2e.o
		obj-$(CONFIG_MT76x2U) += mt76x2u.o

		mt76-y := \
		mmio.o util.o trace.o dma.o mac80211.o debugfs.o eeprom.o tx.o agg-rx.o
		@@ -22,4 +23,8 @@ mt76x2e-y := \
		mt76x2_core.o mt76x2_mac.o mt76x2_mcu.o mt76x2_phy.o \
		mt76x2_dfs.o mt76x2_trace.o

		mt76x2u-y := \
		mt76x2_usb.o mt76x2u_init.o mt76x2u_main.o mt76x2u_mac.o \
		mt76x2u_mcu.o mt76x2u_phy.o mt76x2u_core.o

		CFLAGS_mt76x2_trace.o := -I$(src)

drivers/net/wireless/mediatek/mt76/mt76x2.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,9 @@
		#define MT7662_ROM_PATCH "mt7662_rom_patch.bin"
		#define MT7662_EEPROM_SIZE 512

		#define MT7662U_FIRMWARE "mediatek/mt7662u.bin"
		#define MT7662U_ROM_PATCH "mediatek/mt7662u_rom_patch.bin"

		#define MT76x2_RX_RING_SIZE 256
		#define MT_RX_HEADROOM 32

		@@ -55,6 +58,7 @@ struct mt76x2_mcu {

		wait_queue_head_t wait;
		struct sk_buff_head res_q;
		struct mt76u_buf res_u;

		u32 msg_seq;
		};

drivers/net/wireless/mediatek/mt76/mt76x2_regs.h

+30 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,21 @@

		#define MT_XO_CTRL7 0x011c

		#define MT_USB_U3DMA_CFG 0x9018
		#define MT_USB_DMA_CFG_RX_BULK_AGG_TOUT GENMASK(7, 0)
		#define MT_USB_DMA_CFG_RX_BULK_AGG_LMT GENMASK(15, 8)
		#define MT_USB_DMA_CFG_UDMA_TX_WL_DROP BIT(16)
		#define MT_USB_DMA_CFG_WAKE_UP_EN BIT(17)
		#define MT_USB_DMA_CFG_RX_DROP_OR_PAD BIT(18)
		#define MT_USB_DMA_CFG_TX_CLR BIT(19)
		#define MT_USB_DMA_CFG_TXOP_HALT BIT(20)
		#define MT_USB_DMA_CFG_RX_BULK_AGG_EN BIT(21)
		#define MT_USB_DMA_CFG_RX_BULK_EN BIT(22)
		#define MT_USB_DMA_CFG_TX_BULK_EN BIT(23)
		#define MT_USB_DMA_CFG_EP_OUT_VALID GENMASK(29, 24)
		#define MT_USB_DMA_CFG_RX_BUSY BIT(30)
		#define MT_USB_DMA_CFG_TX_BUSY BIT(31)

		#define MT_WLAN_MTC_CTRL 0x10148
		#define MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP BIT(0)
		#define MT_WLAN_MTC_CTRL_PWR_ACK BIT(12)
		@@ -150,6 +165,9 @@
		#define MT_TX_HW_QUEUE_MCU 8
		#define MT_TX_HW_QUEUE_MGMT 9

		#define MT_US_CYC_CFG 0x02a4
		#define MT_US_CYC_CNT GENMASK(7, 0)

		#define MT_PBF_SYS_CTRL 0x0400
		#define MT_PBF_SYS_CTRL_MCU_RESET BIT(0)
		#define MT_PBF_SYS_CTRL_DMA_RESET BIT(1)
		@@ -202,6 +220,11 @@

		#define MT_FCE_WLAN_FLOW_CONTROL1 0x0824

		#define MT_TX_CPU_FROM_FCE_BASE_PTR 0x09a0
		#define MT_TX_CPU_FROM_FCE_MAX_COUNT 0x09a4
		#define MT_FCE_PDMA_GLOBAL_CONF 0x09c4
		#define MT_FCE_SKIP_FS 0x0a6c

		#define MT_PAUSE_ENABLE_CONTROL1 0x0a38

		#define MT_MAC_CSR0 0x1000
		@@ -214,6 +237,7 @@

		#define MT_MAC_ADDR_DW0 0x1008
		#define MT_MAC_ADDR_DW1 0x100c
		#define MT_MAC_ADDR_DW1_U2ME_MASK GENMASK(23, 16)

		#define MT_MAC_BSSID_DW0 0x1010
		#define MT_MAC_BSSID_DW1 0x1014
		@@ -351,6 +375,7 @@
		#define MT_TX_TIMEOUT_CFG_ACKTO GENMASK(15, 8)

		#define MT_TX_RETRY_CFG 0x134c
		#define MT_TX_LINK_CFG 0x1350
		#define MT_VHT_HT_FBK_CFG1 0x1358

		#define MT_PROT_CFG_RATE GENMASK(15, 0)
		@@ -425,6 +450,7 @@
		#define MT_RX_FILTR_CFG_BAR BIT(15)
		#define MT_RX_FILTR_CFG_CTRL_RSV BIT(16)

		#define MT_AUTO_RSP_CFG 0x1404
		#define MT_LEGACY_BASIC_RATE 0x1408
		#define MT_HT_BASIC_RATE 0x140c

		@@ -460,6 +486,10 @@
		#define MT_RX_STAT_2_DUP_ERRORS GENMASK(15, 0)
		#define MT_RX_STAT_2_OVERFLOW_ERRORS GENMASK(31, 16)

		#define MT_TX_STA_0 0x170c
		#define MT_TX_STA_1 0x1710
		#define MT_TX_STA_2 0x1714

		#define MT_TX_STAT_FIFO 0x1718
		#define MT_TX_STAT_FIFO_VALID BIT(0)
		#define MT_TX_STAT_FIFO_SUCCESS BIT(5)

drivers/net/wireless/mediatek/mt76/mt76x2_usb.c

0 → 100644

+142 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
		*
		* Permission to use, copy, modify, and/or distribute this software for any
		* purpose with or without fee is hereby granted, provided that the above
		* copyright notice and this permission notice appear in all copies.
		*
		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
		* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
		* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
		* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
		*/

		#include <linux/kernel.h>
		#include <linux/module.h>

		#include "mt76x2u.h"

		static const struct usb_device_id mt76x2u_device_table[] = {
		{ USB_DEVICE(0x0b05, 0x1833) }, /* Asus USB-AC54 */
		{ USB_DEVICE(0x0b05, 0x17eb) }, /* Asus USB-AC55 */
		{ USB_DEVICE(0x0b05, 0x180b) }, /* Asus USB-N53 B1 */
		{ USB_DEVICE(0x0e8d, 0x7612) }, /* Aukey USB-AC1200 */
		{ USB_DEVICE(0x057c, 0x8503) }, /* Avm FRITZ!WLAN AC860 */
		{ USB_DEVICE(0x7392, 0xb711) }, /* Edimax EW 7722 UAC */
		{ USB_DEVICE(0x0846, 0x9053) }, /* Netgear A6210 */
		{ USB_DEVICE(0x045e, 0x02e6) }, /* XBox One Wireless Adapter */
		{ },
		};

		static int mt76x2u_probe(struct usb_interface *intf,
		const struct usb_device_id *id)
		{
		struct usb_device *udev = interface_to_usbdev(intf);
		struct mt76x2_dev *dev;
		int err;

		dev = mt76x2u_alloc_device(&intf->dev);
		if (!dev)
		return -ENOMEM;

		udev = usb_get_dev(udev);
		usb_reset_device(udev);

		err = mt76u_init(&dev->mt76, intf);
		if (err < 0)
		goto err;

		dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
		dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);

		err = mt76x2u_register_device(dev);
		if (err < 0)
		goto err;

		return 0;

		err:
		ieee80211_free_hw(mt76_hw(dev));
		usb_set_intfdata(intf, NULL);
		usb_put_dev(udev);

		return err;
		}

		static void mt76x2u_disconnect(struct usb_interface *intf)
		{
		struct usb_device *udev = interface_to_usbdev(intf);
		struct mt76x2_dev *dev = usb_get_intfdata(intf);
		struct ieee80211_hw *hw = mt76_hw(dev);

		set_bit(MT76_REMOVED, &dev->mt76.state);
		ieee80211_unregister_hw(hw);
		mt76x2u_cleanup(dev);

		ieee80211_free_hw(hw);
		usb_set_intfdata(intf, NULL);
		usb_put_dev(udev);
		}

		static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
		pm_message_t state)
		{
		struct mt76x2_dev *dev = usb_get_intfdata(intf);
		struct mt76_usb *usb = &dev->mt76.usb;

		mt76u_stop_queues(&dev->mt76);
		mt76x2u_stop_hw(dev);
		usb_kill_urb(usb->mcu.res.urb);

		return 0;
		}

		static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
		{
		struct mt76x2_dev *dev = usb_get_intfdata(intf);
		struct mt76_usb *usb = &dev->mt76.usb;
		int err;

		reinit_completion(&usb->mcu.cmpl);
		err = mt76u_submit_buf(&dev->mt76, USB_DIR_IN,
		MT_EP_IN_CMD_RESP,
		&usb->mcu.res, GFP_KERNEL,
		mt76u_mcu_complete_urb,
		&usb->mcu.cmpl);
		if (err < 0)
		return err;

		err = mt76u_submit_rx_buffers(&dev->mt76);
		if (err < 0)
		return err;

		tasklet_enable(&usb->rx_tasklet);
		tasklet_enable(&usb->tx_tasklet);

		return mt76x2u_init_hardware(dev);
		}

		MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
		MODULE_FIRMWARE(MT7662U_FIRMWARE);
		MODULE_FIRMWARE(MT7662U_ROM_PATCH);

		static struct usb_driver mt76x2u_driver = {
		.name = KBUILD_MODNAME,
		.id_table = mt76x2u_device_table,
		.probe = mt76x2u_probe,
		.disconnect = mt76x2u_disconnect,
		#ifdef CONFIG_PM
		.suspend = mt76x2u_suspend,
		.resume = mt76x2u_resume,
		.reset_resume = mt76x2u_resume,
		#endif /* CONFIG_PM */
		.soft_unbind = 1,
		.disable_hub_initiated_lpm = 1,
		};
		module_usb_driver(mt76x2u_driver);

		MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
		MODULE_LICENSE("Dual BSD/GPL");