286 lines
6.9 KiB
C
286 lines
6.9 KiB
C
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// SPDX-License-Identifier: ISC
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/* Copyright (C) 2019 MediaTek Inc.
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*
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* Author: Felix Fietkau <nbd@nbd.name>
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* Lorenzo Bianconi <lorenzo@kernel.org>
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* Sean Wang <sean.wang@mediatek.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include "mt7615.h"
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#include "mac.h"
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#include "mcu.h"
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#include "regs.h"
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static const struct usb_device_id mt7615_device_table[] = {
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{ USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7663, 0xff, 0xff, 0xff) },
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{ USB_DEVICE_AND_INTERFACE_INFO(0x043e, 0x310c, 0xff, 0xff, 0xff) },
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{ },
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};
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static u32 mt7663u_rr(struct mt76_dev *dev, u32 addr)
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{
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u32 ret;
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mutex_lock(&dev->usb.usb_ctrl_mtx);
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ret = ___mt76u_rr(dev, MT_VEND_READ_EXT,
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USB_DIR_IN | USB_TYPE_VENDOR, addr);
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mutex_unlock(&dev->usb.usb_ctrl_mtx);
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return ret;
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}
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static void mt7663u_wr(struct mt76_dev *dev, u32 addr, u32 val)
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{
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mutex_lock(&dev->usb.usb_ctrl_mtx);
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___mt76u_wr(dev, MT_VEND_WRITE_EXT,
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USB_DIR_OUT | USB_TYPE_VENDOR, addr, val);
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mutex_unlock(&dev->usb.usb_ctrl_mtx);
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}
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static u32 mt7663u_rmw(struct mt76_dev *dev, u32 addr,
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u32 mask, u32 val)
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{
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mutex_lock(&dev->usb.usb_ctrl_mtx);
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val |= ___mt76u_rr(dev, MT_VEND_READ_EXT,
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USB_DIR_IN | USB_TYPE_VENDOR, addr) & ~mask;
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___mt76u_wr(dev, MT_VEND_WRITE_EXT,
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USB_DIR_OUT | USB_TYPE_VENDOR, addr, val);
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mutex_unlock(&dev->usb.usb_ctrl_mtx);
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return val;
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}
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static void mt7663u_copy(struct mt76_dev *dev, u32 offset,
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const void *data, int len)
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{
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struct mt76_usb *usb = &dev->usb;
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int ret, i = 0, batch_len;
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const u8 *val = data;
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len = round_up(len, 4);
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mutex_lock(&usb->usb_ctrl_mtx);
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while (i < len) {
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batch_len = min_t(int, usb->data_len, len - i);
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memcpy(usb->data, val + i, batch_len);
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ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT,
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USB_DIR_OUT | USB_TYPE_VENDOR,
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(offset + i) >> 16, offset + i,
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usb->data, batch_len);
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if (ret < 0)
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break;
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i += batch_len;
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}
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mutex_unlock(&usb->usb_ctrl_mtx);
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}
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static void mt7663u_stop(struct ieee80211_hw *hw)
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{
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struct mt7615_phy *phy = mt7615_hw_phy(hw);
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struct mt7615_dev *dev = hw->priv;
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clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
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del_timer_sync(&phy->roc_timer);
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cancel_work_sync(&phy->roc_work);
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cancel_delayed_work_sync(&phy->scan_work);
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cancel_delayed_work_sync(&phy->mt76->mac_work);
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mt76u_stop_tx(&dev->mt76);
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}
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static void mt7663u_cleanup(struct mt7615_dev *dev)
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{
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clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
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mt76u_queues_deinit(&dev->mt76);
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}
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static void mt7663u_init_work(struct work_struct *work)
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{
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struct mt7615_dev *dev;
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dev = container_of(work, struct mt7615_dev, mcu_work);
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if (mt7663u_mcu_init(dev))
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return;
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mt7615_init_work(dev);
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}
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static int mt7663u_probe(struct usb_interface *usb_intf,
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const struct usb_device_id *id)
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{
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static const struct mt76_driver_ops drv_ops = {
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.txwi_size = MT_USB_TXD_SIZE,
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.drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ,
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.tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb,
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.tx_complete_skb = mt7663_usb_sdio_tx_complete_skb,
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.tx_status_data = mt7663_usb_sdio_tx_status_data,
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.rx_skb = mt7615_queue_rx_skb,
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.rx_check = mt7615_rx_check,
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.sta_ps = mt7615_sta_ps,
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.sta_add = mt7615_mac_sta_add,
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.sta_remove = mt7615_mac_sta_remove,
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.update_survey = mt7615_update_channel,
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};
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static struct mt76_bus_ops bus_ops = {
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.rr = mt7663u_rr,
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.wr = mt7663u_wr,
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.rmw = mt7663u_rmw,
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.read_copy = mt76u_read_copy,
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.write_copy = mt7663u_copy,
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.type = MT76_BUS_USB,
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};
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struct usb_device *udev = interface_to_usbdev(usb_intf);
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struct ieee80211_ops *ops;
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struct mt7615_dev *dev;
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struct mt76_dev *mdev;
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int ret;
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ops = devm_kmemdup(&usb_intf->dev, &mt7615_ops, sizeof(mt7615_ops),
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GFP_KERNEL);
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if (!ops)
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return -ENOMEM;
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ops->stop = mt7663u_stop;
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mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
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if (!mdev)
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return -ENOMEM;
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dev = container_of(mdev, struct mt7615_dev, mt76);
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udev = usb_get_dev(udev);
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usb_reset_device(udev);
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usb_set_intfdata(usb_intf, dev);
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INIT_WORK(&dev->mcu_work, mt7663u_init_work);
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dev->reg_map = mt7663_usb_sdio_reg_map;
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dev->ops = ops;
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ret = __mt76u_init(mdev, usb_intf, &bus_ops);
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if (ret < 0)
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goto error;
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mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
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(mt76_rr(dev, MT_HW_REV) & 0xff);
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dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
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if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
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FW_STATE_PWR_ON << 1, 500)) {
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ret = mt7663u_mcu_power_on(dev);
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if (ret)
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goto error;
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} else {
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set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state);
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}
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ret = mt76u_alloc_mcu_queue(&dev->mt76);
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if (ret)
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goto error;
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ret = mt76u_alloc_queues(&dev->mt76);
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if (ret)
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goto error;
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ret = mt7663_usb_sdio_register_device(dev);
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if (ret)
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goto error;
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return 0;
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error:
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mt76u_queues_deinit(&dev->mt76);
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usb_set_intfdata(usb_intf, NULL);
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usb_put_dev(interface_to_usbdev(usb_intf));
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mt76_free_device(&dev->mt76);
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return ret;
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}
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static void mt7663u_disconnect(struct usb_interface *usb_intf)
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{
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struct mt7615_dev *dev = usb_get_intfdata(usb_intf);
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if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
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return;
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ieee80211_unregister_hw(dev->mt76.hw);
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mt7663u_cleanup(dev);
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usb_set_intfdata(usb_intf, NULL);
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usb_put_dev(interface_to_usbdev(usb_intf));
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mt76_free_device(&dev->mt76);
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}
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#ifdef CONFIG_PM
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static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state)
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{
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struct mt7615_dev *dev = usb_get_intfdata(intf);
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if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
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mt7615_firmware_offload(dev)) {
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int err;
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err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
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if (err < 0)
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return err;
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}
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mt76u_stop_rx(&dev->mt76);
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mt76u_stop_tx(&dev->mt76);
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return 0;
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}
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static int mt7663u_resume(struct usb_interface *intf)
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{
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struct mt7615_dev *dev = usb_get_intfdata(intf);
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int err;
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err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET,
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USB_DIR_OUT | USB_TYPE_VENDOR,
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0x5, 0x0, NULL, 0);
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if (err)
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return err;
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err = mt76u_resume_rx(&dev->mt76);
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if (err < 0)
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return err;
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if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
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mt7615_firmware_offload(dev))
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err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
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return err;
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}
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#endif /* CONFIG_PM */
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MODULE_DEVICE_TABLE(usb, mt7615_device_table);
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MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);
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MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);
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MODULE_FIRMWARE(MT7663_FIRMWARE_N9);
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MODULE_FIRMWARE(MT7663_ROM_PATCH);
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static struct usb_driver mt7663u_driver = {
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.name = KBUILD_MODNAME,
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.id_table = mt7615_device_table,
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.probe = mt7663u_probe,
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.disconnect = mt7663u_disconnect,
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#ifdef CONFIG_PM
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.suspend = mt7663u_suspend,
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.resume = mt7663u_resume,
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.reset_resume = mt7663u_resume,
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#endif /* CONFIG_PM */
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.soft_unbind = 1,
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.disable_hub_initiated_lpm = 1,
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};
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module_usb_driver(mt7663u_driver);
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MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
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MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
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MODULE_LICENSE("Dual BSD/GPL");
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