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path: root/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
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Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x0/usb.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x0/usb.c352
1 files changed, 352 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
new file mode 100644
index 0000000..1ae54a8
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
@@ -0,0 +1,352 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "mt76x0.h"
+#include "mcu.h"
+#include "../mt76x02_usb.h"
+
+static struct usb_device_id mt76x0_device_table[] = {
+ { USB_DEVICE(0x148F, 0x7610) }, /* MT7610U */
+ { USB_DEVICE(0x13B1, 0x003E) }, /* Linksys AE6000 */
+ { USB_DEVICE(0x0E8D, 0x7610) }, /* Sabrent NTWLAC */
+ { USB_DEVICE(0x7392, 0xa711) }, /* Edimax 7711mac */
+ { USB_DEVICE(0x7392, 0xb711) }, /* Edimax / Elecom */
+ { USB_DEVICE(0x148f, 0x761a) }, /* TP-Link TL-WDN5200 */
+ { USB_DEVICE(0x148f, 0x760a) }, /* TP-Link unknown */
+ { USB_DEVICE(0x0b05, 0x17d1) }, /* Asus USB-AC51 */
+ { USB_DEVICE(0x0b05, 0x17db) }, /* Asus USB-AC50 */
+ { USB_DEVICE(0x0df6, 0x0075) }, /* Sitecom WLA-3100 */
+ { USB_DEVICE(0x2019, 0xab31) }, /* Planex GW-450D */
+ { USB_DEVICE(0x2001, 0x3d02) }, /* D-LINK DWA-171 rev B1 */
+ { USB_DEVICE(0x0586, 0x3425) }, /* Zyxel NWD6505 */
+ { USB_DEVICE(0x07b8, 0x7610) }, /* AboCom AU7212 */
+ { USB_DEVICE(0x04bb, 0x0951) }, /* I-O DATA WN-AC433UK */
+ { USB_DEVICE(0x057c, 0x8502) }, /* AVM FRITZ!WLAN USB Stick AC 430 */
+ { USB_DEVICE(0x293c, 0x5702) }, /* Comcast Xfinity KXW02AAA */
+ { USB_DEVICE(0x20f4, 0x806b) }, /* TRENDnet TEW-806UBH */
+ { USB_DEVICE(0x7392, 0xc711) }, /* Devolo Wifi ac Stick */
+ { USB_DEVICE(0x0df6, 0x0079) }, /* Sitecom Europe B.V. ac Stick */
+ { USB_DEVICE(0x2357, 0x0123) }, /* TP-LINK T2UHP */
+ /* TP-LINK Archer T1U */
+ { USB_DEVICE(0x2357, 0x0105), .driver_info = 1, },
+ /* MT7630U */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7630, 0xff, 0x2, 0xff)},
+ /* MT7650U */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0E8D, 0x7650, 0xff, 0x2, 0xff)},
+ { 0, }
+};
+
+static void mt76x0_init_usb_dma(struct mt76x02_dev *dev)
+{
+ u32 val;
+
+ val = mt76_rr(dev, MT_USB_DMA_CFG);
+
+ val |= MT_USB_DMA_CFG_RX_BULK_EN |
+ MT_USB_DMA_CFG_TX_BULK_EN;
+
+ /* disable AGGR_BULK_RX in order to receive one
+ * frame in each rx urb and avoid copies
+ */
+ val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;
+ mt76_wr(dev, MT_USB_DMA_CFG, val);
+
+ val = mt76_rr(dev, MT_COM_REG0);
+ if (val & 1)
+ dev_dbg(dev->mt76.dev, "MCU not ready\n");
+
+ val = mt76_rr(dev, MT_USB_DMA_CFG);
+
+ val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD;
+ mt76_wr(dev, MT_USB_DMA_CFG, val);
+ val &= ~MT_USB_DMA_CFG_RX_DROP_OR_PAD;
+ mt76_wr(dev, MT_USB_DMA_CFG, val);
+}
+
+static void mt76x0u_cleanup(struct mt76x02_dev *dev)
+{
+ clear_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
+ mt76x0_chip_onoff(dev, false, false);
+ mt76u_queues_deinit(&dev->mt76);
+}
+
+static void mt76x0u_stop(struct ieee80211_hw *hw)
+{
+ struct mt76x02_dev *dev = hw->priv;
+
+ clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+ cancel_delayed_work_sync(&dev->cal_work);
+ cancel_delayed_work_sync(&dev->mt76.mac_work);
+ mt76u_stop_tx(&dev->mt76);
+ mt76x02u_exit_beacon_config(dev);
+
+ if (test_bit(MT76_REMOVED, &dev->mt76.state))
+ return;
+
+ if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_TX_BUSY, 0, 1000))
+ dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
+
+ mt76x0_mac_stop(dev);
+
+ if (!mt76_poll(dev, MT_USB_DMA_CFG, MT_USB_DMA_CFG_RX_BUSY, 0, 1000))
+ dev_warn(dev->mt76.dev, "RX DMA did not stop\n");
+}
+
+static int mt76x0u_start(struct ieee80211_hw *hw)
+{
+ struct mt76x02_dev *dev = hw->priv;
+ int ret;
+
+ ret = mt76x0_mac_start(dev);
+ if (ret)
+ return ret;
+
+ mt76x0_phy_calibrate(dev, true);
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mt76.mac_work,
+ MT_MAC_WORK_INTERVAL);
+ ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
+ MT_CALIBRATE_INTERVAL);
+ set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
+ return 0;
+}
+
+static const struct ieee80211_ops mt76x0u_ops = {
+ .tx = mt76x02_tx,
+ .start = mt76x0u_start,
+ .stop = mt76x0u_stop,
+ .add_interface = mt76x02_add_interface,
+ .remove_interface = mt76x02_remove_interface,
+ .config = mt76x0_config,
+ .configure_filter = mt76x02_configure_filter,
+ .bss_info_changed = mt76x02_bss_info_changed,
+ .sta_state = mt76_sta_state,
+ .set_key = mt76x02_set_key,
+ .conf_tx = mt76x02_conf_tx,
+ .sw_scan_start = mt76_sw_scan,
+ .sw_scan_complete = mt76x02_sw_scan_complete,
+ .ampdu_action = mt76x02_ampdu_action,
+ .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
+ .set_rts_threshold = mt76x02_set_rts_threshold,
+ .wake_tx_queue = mt76_wake_tx_queue,
+ .get_txpower = mt76_get_txpower,
+ .get_survey = mt76_get_survey,
+ .set_tim = mt76_set_tim,
+ .release_buffered_frames = mt76_release_buffered_frames,
+};
+
+static int mt76x0u_init_hardware(struct mt76x02_dev *dev, bool reset)
+{
+ int err;
+
+ mt76x0_chip_onoff(dev, true, reset);
+
+ if (!mt76x02_wait_for_mac(&dev->mt76))
+ return -ETIMEDOUT;
+
+ err = mt76x0u_mcu_init(dev);
+ if (err < 0)
+ return err;
+
+ mt76x0_init_usb_dma(dev);
+ err = mt76x0_init_hardware(dev);
+ if (err < 0)
+ return err;
+
+ mt76x02u_init_beacon_config(dev);
+
+ mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e);
+ mt76_wr(dev, MT_TXOP_CTRL_CFG,
+ FIELD_PREP(MT_TXOP_TRUN_EN, 0x3f) |
+ FIELD_PREP(MT_TXOP_EXT_CCA_DLY, 0x58));
+
+ mt76_wr(dev, MT_CH_TIME_CFG,
+ MT_CH_TIME_CFG_TIMER_EN |
+ MT_CH_TIME_CFG_TX_AS_BUSY |
+ MT_CH_TIME_CFG_RX_AS_BUSY |
+ MT_CH_TIME_CFG_NAV_AS_BUSY |
+ MT_CH_TIME_CFG_EIFS_AS_BUSY);
+
+ return 0;
+}
+
+static int mt76x0u_register_device(struct mt76x02_dev *dev)
+{
+ struct ieee80211_hw *hw = dev->mt76.hw;
+ int err;
+
+ err = mt76u_alloc_queues(&dev->mt76);
+ if (err < 0)
+ goto out_err;
+
+ err = mt76x0u_init_hardware(dev, true);
+ if (err < 0)
+ goto out_err;
+
+ err = mt76x0_register_device(dev);
+ if (err < 0)
+ goto out_err;
+
+ /* check hw sg support in order to enable AMSDU */
+ if (dev->mt76.usb.sg_en)
+ hw->max_tx_fragments = MT_TX_SG_MAX_SIZE;
+ else
+ hw->max_tx_fragments = 1;
+
+ set_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
+
+ return 0;
+
+out_err:
+ mt76x0u_cleanup(dev);
+ return err;
+}
+
+static int mt76x0u_probe(struct usb_interface *usb_intf,
+ const struct usb_device_id *id)
+{
+ static const struct mt76_driver_ops drv_ops = {
+ .update_survey = mt76x02_update_channel,
+ .tx_prepare_skb = mt76x02u_tx_prepare_skb,
+ .tx_complete_skb = mt76x02u_tx_complete_skb,
+ .tx_status_data = mt76x02_tx_status_data,
+ .rx_skb = mt76x02_queue_rx_skb,
+ .sta_ps = mt76x02_sta_ps,
+ .sta_add = mt76x02_sta_add,
+ .sta_remove = mt76x02_sta_remove,
+ };
+ struct usb_device *usb_dev = interface_to_usbdev(usb_intf);
+ struct mt76x02_dev *dev;
+ struct mt76_dev *mdev;
+ u32 mac_rev;
+ int ret;
+
+ mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), &mt76x0u_ops,
+ &drv_ops);
+ if (!mdev)
+ return -ENOMEM;
+
+ dev = container_of(mdev, struct mt76x02_dev, mt76);
+ mutex_init(&dev->phy_mutex);
+
+ /* Quirk for Archer T1U */
+ if (id->driver_info)
+ dev->no_2ghz = true;
+
+ usb_dev = usb_get_dev(usb_dev);
+ usb_reset_device(usb_dev);
+
+ usb_set_intfdata(usb_intf, dev);
+
+ mt76x02u_init_mcu(mdev);
+ ret = mt76u_init(mdev, usb_intf);
+ if (ret)
+ goto err;
+
+ /* Disable the HW, otherwise MCU fail to initialize on hot reboot */
+ mt76x0_chip_onoff(dev, false, false);
+
+ if (!mt76x02_wait_for_mac(mdev)) {
+ ret = -ETIMEDOUT;
+ goto err;
+ }
+
+ mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
+ mac_rev = mt76_rr(dev, MT_MAC_CSR0);
+ dev_info(mdev->dev, "ASIC revision: %08x MAC revision: %08x\n",
+ mdev->rev, mac_rev);
+ if (!is_mt76x0(dev)) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ /* Note: vendor driver skips this check for MT76X0U */
+ if (!(mt76_rr(dev, MT_EFUSE_CTRL) & MT_EFUSE_CTRL_SEL))
+ dev_warn(mdev->dev, "Warning: eFUSE not present\n");
+
+ ret = mt76x0u_register_device(dev);
+ if (ret < 0)
+ goto err;
+
+ return 0;
+
+err:
+ usb_set_intfdata(usb_intf, NULL);
+ usb_put_dev(interface_to_usbdev(usb_intf));
+
+ ieee80211_free_hw(mdev->hw);
+ return ret;
+}
+
+static void mt76x0_disconnect(struct usb_interface *usb_intf)
+{
+ struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
+ bool initialized = test_bit(MT76_STATE_INITIALIZED, &dev->mt76.state);
+
+ if (!initialized)
+ return;
+
+ ieee80211_unregister_hw(dev->mt76.hw);
+ mt76x0u_cleanup(dev);
+
+ usb_set_intfdata(usb_intf, NULL);
+ usb_put_dev(interface_to_usbdev(usb_intf));
+
+ ieee80211_free_hw(dev->mt76.hw);
+}
+
+static int __maybe_unused mt76x0_suspend(struct usb_interface *usb_intf,
+ pm_message_t state)
+{
+ struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
+
+ mt76u_stop_rx(&dev->mt76);
+ clear_bit(MT76_STATE_MCU_RUNNING, &dev->mt76.state);
+ mt76x0_chip_onoff(dev, false, false);
+
+ return 0;
+}
+
+static int __maybe_unused mt76x0_resume(struct usb_interface *usb_intf)
+{
+ struct mt76x02_dev *dev = usb_get_intfdata(usb_intf);
+ int ret;
+
+ ret = mt76u_resume_rx(&dev->mt76);
+ if (ret < 0)
+ goto err;
+
+ ret = mt76x0u_init_hardware(dev, false);
+ if (ret)
+ goto err;
+
+ return 0;
+err:
+ mt76x0u_cleanup(dev);
+ return ret;
+}
+
+MODULE_DEVICE_TABLE(usb, mt76x0_device_table);
+MODULE_FIRMWARE(MT7610E_FIRMWARE);
+MODULE_FIRMWARE(MT7610U_FIRMWARE);
+MODULE_LICENSE("GPL");
+
+static struct usb_driver mt76x0_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = mt76x0_device_table,
+ .probe = mt76x0u_probe,
+ .disconnect = mt76x0_disconnect,
+ .suspend = mt76x0_suspend,
+ .resume = mt76x0_resume,
+ .reset_resume = mt76x0_resume,
+ .soft_unbind = 1,
+#if LINUX_VERSION_IS_GEQ(3,5,0)
+ .disable_hub_initiated_lpm = 1,
+#endif
+};
+module_usb_driver(mt76x0_driver);