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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) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x043e, 0x310c, 0xff, 0xff, 0xff) },
{ },
};
static u32 mt7663u_rr(struct mt76_dev *dev, u32 addr)
{
u32 ret;
mutex_lock(&dev->usb.usb_ctrl_mtx);
ret = ___mt76u_rr(dev, MT_VEND_READ_EXT,
USB_DIR_IN | USB_TYPE_VENDOR, addr);
mutex_unlock(&dev->usb.usb_ctrl_mtx);
return ret;
}
static void mt7663u_wr(struct mt76_dev *dev, u32 addr, u32 val)
{
mutex_lock(&dev->usb.usb_ctrl_mtx);
___mt76u_wr(dev, MT_VEND_WRITE_EXT,
USB_DIR_OUT | USB_TYPE_VENDOR, addr, val);
mutex_unlock(&dev->usb.usb_ctrl_mtx);
}
static u32 mt7663u_rmw(struct mt76_dev *dev, u32 addr,
u32 mask, u32 val)
{
mutex_lock(&dev->usb.usb_ctrl_mtx);
val |= ___mt76u_rr(dev, MT_VEND_READ_EXT,
USB_DIR_IN | USB_TYPE_VENDOR, addr) & ~mask;
___mt76u_wr(dev, MT_VEND_WRITE_EXT,
USB_DIR_OUT | USB_TYPE_VENDOR, addr, val);
mutex_unlock(&dev->usb.usb_ctrl_mtx);
return val;
}
static void mt7663u_copy(struct mt76_dev *dev, u32 offset,
const void *data, int len)
{
struct mt76_usb *usb = &dev->usb;
int ret, i = 0, batch_len;
const u8 *val = data;
len = round_up(len, 4);
mutex_lock(&usb->usb_ctrl_mtx);
while (i < len) {
batch_len = min_t(int, usb->data_len, len - i);
memcpy(usb->data, val + i, batch_len);
ret = __mt76u_vendor_request(dev, MT_VEND_WRITE_EXT,
USB_DIR_OUT | USB_TYPE_VENDOR,
(offset + i) >> 16, offset + i,
usb->data, batch_len);
if (ret < 0)
break;
i += batch_len;
}
mutex_unlock(&usb->usb_ctrl_mtx);
}
static void mt7663u_stop(struct ieee80211_hw *hw, bool suspend)
{
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->mt76->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_init_work(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,
.rx_check = mt7615_rx_check,
.sta_add = mt7615_mac_sta_add,
.sta_remove = mt7615_mac_sta_remove,
.update_survey = mt7615_update_channel,
};
static struct mt76_bus_ops bus_ops = {
.rr = mt7663u_rr,
.wr = mt7663u_wr,
.rmw = mt7663u_rmw,
.read_copy = mt76u_read_copy,
.write_copy = mt7663u_copy,
.type = MT76_BUS_USB,
};
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, &bus_ops);
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)) {
ret = mt7663u_mcu_power_on(dev);
if (ret)
goto error;
} else {
set_bit(MT76_STATE_POWER_OFF, &dev->mphy.state);
}
ret = mt76u_alloc_mcu_queue(&dev->mt76);
if (ret)
goto error;
ret = mt76u_alloc_queues(&dev->mt76);
if (ret)
goto error;
ret = mt7663_usb_sdio_register_device(dev);
if (ret)
goto error;
return 0;
error:
mt76u_queues_deinit(&dev->mt76);
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 = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
if (err < 0)
return err;
}
mt76u_stop_rx(&dev->mt76);
mt76u_stop_tx(&dev->mt76);
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 = mt76_connac_mcu_set_hif_suspend(&dev->mt76, 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_DESCRIPTION("MediaTek MT7663U (USB) wireless driver");
MODULE_LICENSE("Dual BSD/GPL");
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