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// SPDX-License-Identifier: ISC
/* Copyright (C) 2019 MediaTek Inc.
*
* Author: Felix Fietkau <nbd@nbd.name>
* Lorenzo Bianconi <lorenzo@kernel.org>
* Sean Wang <sean.wang@mediatek.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "mt7615.h"
#include "mac.h"
#include "mcu.h"
#include "regs.h"
static const struct usb_device_id mt7615_device_table[] = {
{ USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7663, 0xff, 0xff, 0xff) },
{ },
};
static void mt7663u_stop(struct ieee80211_hw *hw)
{
struct mt7615_phy *phy = mt7615_hw_phy(hw);
struct mt7615_dev *dev = hw->priv;
clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
del_timer_sync(&phy->roc_timer);
cancel_work_sync(&phy->roc_work);
cancel_delayed_work_sync(&phy->scan_work);
cancel_delayed_work_sync(&phy->mac_work);
mt76u_stop_tx(&dev->mt76);
}
static void mt7663u_cleanup(struct mt7615_dev *dev)
{
clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
mt76u_queues_deinit(&dev->mt76);
}
static void mt7663u_init_work(struct work_struct *work)
{
struct mt7615_dev *dev;
dev = container_of(work, struct mt7615_dev, mcu_work);
if (mt7663u_mcu_init(dev))
return;
mt7615_mcu_set_eeprom(dev);
mt7615_mac_init(dev);
mt7615_phy_init(dev);
mt7615_mcu_del_wtbl_all(dev);
mt7615_check_offload_capability(dev);
}
static int mt7663u_probe(struct usb_interface *usb_intf,
const struct usb_device_id *id)
{
static const struct mt76_driver_ops drv_ops = {
.txwi_size = MT_USB_TXD_SIZE,
.drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ,
.tx_prepare_skb = mt7663_usb_sdio_tx_prepare_skb,
.tx_complete_skb = mt7663_usb_sdio_tx_complete_skb,
.tx_status_data = mt7663_usb_sdio_tx_status_data,
.rx_skb = mt7615_queue_rx_skb,
.sta_ps = mt7615_sta_ps,
.sta_add = mt7615_mac_sta_add,
.sta_remove = mt7615_mac_sta_remove,
.update_survey = mt7615_update_channel,
};
struct usb_device *udev = interface_to_usbdev(usb_intf);
struct ieee80211_ops *ops;
struct mt7615_dev *dev;
struct mt76_dev *mdev;
int ret;
ops = devm_kmemdup(&usb_intf->dev, &mt7615_ops, sizeof(mt7615_ops),
GFP_KERNEL);
if (!ops)
return -ENOMEM;
ops->stop = mt7663u_stop;
mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
if (!mdev)
return -ENOMEM;
dev = container_of(mdev, struct mt7615_dev, mt76);
udev = usb_get_dev(udev);
usb_reset_device(udev);
usb_set_intfdata(usb_intf, dev);
INIT_WORK(&dev->mcu_work, mt7663u_init_work);
dev->reg_map = mt7663_usb_sdio_reg_map;
dev->ops = ops;
ret = mt76u_init(mdev, usb_intf, true);
if (ret < 0)
goto error;
mdev->rev = (mt76_rr(dev, MT_HW_CHIPID) << 16) |
(mt76_rr(dev, MT_HW_REV) & 0xff);
dev_dbg(mdev->dev, "ASIC revision: %04x\n", mdev->rev);
if (mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
FW_STATE_PWR_ON << 1, 500)) {
dev_dbg(dev->mt76.dev, "Usb device already powered on\n");
set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state);
goto alloc_queues;
}
ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
USB_DIR_OUT | USB_TYPE_VENDOR,
0x0, 0x1, NULL, 0);
if (ret)
goto error;
if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
FW_STATE_PWR_ON << 1, 500)) {
dev_err(dev->mt76.dev, "Timeout for power on\n");
ret = -EIO;
goto error;
}
alloc_queues:
ret = mt76u_alloc_mcu_queue(&dev->mt76);
if (ret)
goto error_free_q;
ret = mt76u_alloc_queues(&dev->mt76);
if (ret)
goto error_free_q;
ret = mt7663_usb_sdio_register_device(dev);
if (ret)
goto error_free_q;
return 0;
error_free_q:
mt76u_queues_deinit(&dev->mt76);
error:
usb_set_intfdata(usb_intf, NULL);
usb_put_dev(interface_to_usbdev(usb_intf));
mt76_free_device(&dev->mt76);
return ret;
}
static void mt7663u_disconnect(struct usb_interface *usb_intf)
{
struct mt7615_dev *dev = usb_get_intfdata(usb_intf);
if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
return;
ieee80211_unregister_hw(dev->mt76.hw);
mt7663u_cleanup(dev);
usb_set_intfdata(usb_intf, NULL);
usb_put_dev(interface_to_usbdev(usb_intf));
mt76_free_device(&dev->mt76);
}
#ifdef CONFIG_PM
static int mt7663u_suspend(struct usb_interface *intf, pm_message_t state)
{
struct mt7615_dev *dev = usb_get_intfdata(intf);
if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
mt7615_firmware_offload(dev)) {
int err;
err = mt7615_mcu_set_hif_suspend(dev, true);
if (err < 0)
return err;
}
mt76u_stop_rx(&dev->mt76);
mt76u_stop_tx(&dev->mt76);
tasklet_kill(&dev->mt76.tx_tasklet);
return 0;
}
static int mt7663u_resume(struct usb_interface *intf)
{
struct mt7615_dev *dev = usb_get_intfdata(intf);
int err;
err = mt76u_vendor_request(&dev->mt76, MT_VEND_FEATURE_SET,
USB_DIR_OUT | USB_TYPE_VENDOR,
0x5, 0x0, NULL, 0);
if (err)
return err;
err = mt76u_resume_rx(&dev->mt76);
if (err < 0)
return err;
if (!test_bit(MT76_STATE_SUSPEND, &dev->mphy.state) &&
mt7615_firmware_offload(dev))
err = mt7615_mcu_set_hif_suspend(dev, false);
return err;
}
#endif /* CONFIG_PM */
MODULE_DEVICE_TABLE(usb, mt7615_device_table);
MODULE_FIRMWARE(MT7663_OFFLOAD_FIRMWARE_N9);
MODULE_FIRMWARE(MT7663_OFFLOAD_ROM_PATCH);
MODULE_FIRMWARE(MT7663_FIRMWARE_N9);
MODULE_FIRMWARE(MT7663_ROM_PATCH);
static struct usb_driver mt7663u_driver = {
.name = KBUILD_MODNAME,
.id_table = mt7615_device_table,
.probe = mt7663u_probe,
.disconnect = mt7663u_disconnect,
#ifdef CONFIG_PM
.suspend = mt7663u_suspend,
.resume = mt7663u_resume,
.reset_resume = mt7663u_resume,
#endif /* CONFIG_PM */
.soft_unbind = 1,
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(mt7663u_driver);
MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
MODULE_LICENSE("Dual BSD/GPL");
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