[][MAC80211][misc][preliminary version of Filogic 680 on Filogic 880]
[Description]
Add preliminary version of Filogic 680 on Filogic 880.
Based on mt76 revision: 269df4b01f27 ("wifi: mt76: fix rx checksum offload on mt7615/mt7915/mt7921")
This series adds mt7996, a new mac80211 driver for MediaTek Wi-Fi 7
(802.11be) devices, which currently supports AP, station, mesh, and
monitor modes.
mt7996 first supports Filogic 680, which is a Wi-Fi 7 chipset supporting
concurrent tri-band operation at 6 GHz, 5 GHz, and 2.4 GHz with 4x4
antennas on each band. There are several variants that will be added in
upcoming patches. For more details, please refer to [1].
mt7996 supports only Wi-Fi 6E at the moment, whereas Wi-Fi 7 and its
specific features are work in progress. They will be introduced in
further patches.
[1] https://corp.mediatek.com/news-events/press-releases/mediatek-announces-worlds-first-complete-wi-fi-7-platforms-for-access-points-and-clients
[Release-log]
N/A
Change-Id: I7d3dea2626556751c9b0462e587743fad5287be0
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6709775
diff --git a/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7921/usb.c b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7921/usb.c
new file mode 100644
index 0000000..89249f0
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/src/mt7921/usb.c
@@ -0,0 +1,387 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2022 MediaTek Inc.
+ *
+ * Author: Lorenzo Bianconi <lorenzo@kernel.org>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "mt7921.h"
+#include "mcu.h"
+#include "mac.h"
+
+static const struct usb_device_id mt7921u_device_table[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(0x0e8d, 0x7961, 0xff, 0xff, 0xff) },
+ { },
+};
+
+static u32 mt7921u_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 | MT_USB_TYPE_VENDOR, addr);
+ mutex_unlock(&dev->usb.usb_ctrl_mtx);
+
+ return ret;
+}
+
+static void mt7921u_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 | MT_USB_TYPE_VENDOR, addr, val);
+ mutex_unlock(&dev->usb.usb_ctrl_mtx);
+}
+
+static u32 mt7921u_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 | MT_USB_TYPE_VENDOR, addr) & ~mask;
+ ___mt76u_wr(dev, MT_VEND_WRITE_EXT,
+ USB_DIR_OUT | MT_USB_TYPE_VENDOR, addr, val);
+ mutex_unlock(&dev->usb.usb_ctrl_mtx);
+
+ return val;
+}
+
+static void mt7921u_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 | MT_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);
+}
+
+int mt7921u_mcu_power_on(struct mt7921_dev *dev)
+{
+ int ret;
+
+ ret = mt76u_vendor_request(&dev->mt76, MT_VEND_POWER_ON,
+ USB_DIR_OUT | MT_USB_TYPE_VENDOR,
+ 0x0, 0x1, NULL, 0);
+ if (ret)
+ return ret;
+
+ if (!mt76_poll_msec(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_PWR_ON,
+ MT_TOP_MISC2_FW_PWR_ON, 500)) {
+ dev_err(dev->mt76.dev, "Timeout for power on\n");
+ ret = -EIO;
+ }
+
+ return ret;
+}
+
+static int
+mt7921u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+ int cmd, int *seq)
+{
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ u32 pad, ep;
+ int ret;
+
+ ret = mt76_connac2_mcu_fill_message(mdev, skb, cmd, seq);
+ if (ret)
+ return ret;
+
+ mdev->mcu.timeout = 3 * HZ;
+
+ if (cmd != MCU_CMD(FW_SCATTER))
+ ep = MT_EP_OUT_INBAND_CMD;
+ else
+ ep = MT_EP_OUT_AC_BE;
+
+ mt7921_skb_add_usb_sdio_hdr(dev, skb, 0);
+ pad = round_up(skb->len, 4) + 4 - skb->len;
+ __skb_put_zero(skb, pad);
+
+ ret = mt76u_bulk_msg(&dev->mt76, skb->data, skb->len, NULL,
+ 1000, ep);
+ dev_kfree_skb(skb);
+
+ return ret;
+}
+
+static int mt7921u_mcu_init(struct mt7921_dev *dev)
+{
+ static const struct mt76_mcu_ops mcu_ops = {
+ .headroom = MT_SDIO_HDR_SIZE +
+ sizeof(struct mt76_connac2_mcu_txd),
+ .tailroom = MT_USB_TAIL_SIZE,
+ .mcu_skb_send_msg = mt7921u_mcu_send_message,
+ .mcu_parse_response = mt7921_mcu_parse_response,
+ .mcu_restart = mt76_connac_mcu_restart,
+ };
+ int ret;
+
+ dev->mt76.mcu_ops = &mcu_ops;
+
+ mt76_set(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
+ ret = mt7921_run_firmware(dev);
+ if (ret)
+ return ret;
+
+ set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
+ mt76_clear(dev, MT_UDMA_TX_QSEL, MT_FW_DL_EN);
+
+ return 0;
+}
+
+static void mt7921u_stop(struct ieee80211_hw *hw)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+ mt76u_stop_tx(&dev->mt76);
+ mt7921_stop(hw);
+}
+
+static void mt7921u_cleanup(struct mt7921_dev *dev)
+{
+ clear_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+ mt7921u_wfsys_reset(dev);
+ skb_queue_purge(&dev->mt76.mcu.res_q);
+ mt76u_queues_deinit(&dev->mt76);
+}
+
+static int mt7921u_probe(struct usb_interface *usb_intf,
+ const struct usb_device_id *id)
+{
+ static const struct mt76_driver_ops drv_ops = {
+ .txwi_size = MT_SDIO_TXD_SIZE,
+ .drv_flags = MT_DRV_RX_DMA_HDR | MT_DRV_HW_MGMT_TXQ |
+ MT_DRV_AMSDU_OFFLOAD,
+ .survey_flags = SURVEY_INFO_TIME_TX |
+ SURVEY_INFO_TIME_RX |
+ SURVEY_INFO_TIME_BSS_RX,
+ .tx_prepare_skb = mt7921_usb_sdio_tx_prepare_skb,
+ .tx_complete_skb = mt7921_usb_sdio_tx_complete_skb,
+ .tx_status_data = mt7921_usb_sdio_tx_status_data,
+ .rx_skb = mt7921_queue_rx_skb,
+ .rx_check = mt7921_rx_check,
+ .sta_ps = mt7921_sta_ps,
+ .sta_add = mt7921_mac_sta_add,
+ .sta_assoc = mt7921_mac_sta_assoc,
+ .sta_remove = mt7921_mac_sta_remove,
+ .update_survey = mt7921_update_channel,
+ };
+ static const struct mt7921_hif_ops hif_ops = {
+ .mcu_init = mt7921u_mcu_init,
+ .init_reset = mt7921u_init_reset,
+ .reset = mt7921u_mac_reset,
+ };
+ static struct mt76_bus_ops bus_ops = {
+ .rr = mt7921u_rr,
+ .wr = mt7921u_wr,
+ .rmw = mt7921u_rmw,
+ .read_copy = mt76u_read_copy,
+ .write_copy = mt7921u_copy,
+ .type = MT76_BUS_USB,
+ };
+ struct usb_device *udev = interface_to_usbdev(usb_intf);
+ struct ieee80211_ops *ops;
+ struct ieee80211_hw *hw;
+ struct mt7921_dev *dev;
+ struct mt76_dev *mdev;
+ int ret;
+
+ ops = devm_kmemdup(&usb_intf->dev, &mt7921_ops, sizeof(mt7921_ops),
+ GFP_KERNEL);
+ if (!ops)
+ return -ENOMEM;
+
+ ops->stop = mt7921u_stop;
+
+ mdev = mt76_alloc_device(&usb_intf->dev, sizeof(*dev), ops, &drv_ops);
+ if (!mdev)
+ return -ENOMEM;
+
+ dev = container_of(mdev, struct mt7921_dev, mt76);
+ dev->hif_ops = &hif_ops;
+
+ udev = usb_get_dev(udev);
+ usb_reset_device(udev);
+
+ usb_set_intfdata(usb_intf, dev);
+
+ 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_get_field(dev, MT_CONN_ON_MISC, MT_TOP_MISC2_FW_N9_RDY)) {
+ ret = mt7921u_wfsys_reset(dev);
+ if (ret)
+ goto error;
+ }
+
+ ret = mt7921u_mcu_power_on(dev);
+ if (ret)
+ goto error;
+
+ ret = mt76u_alloc_mcu_queue(&dev->mt76);
+ if (ret)
+ goto error;
+
+ ret = mt76u_alloc_queues(&dev->mt76);
+ if (ret)
+ goto error;
+
+ ret = mt7921u_dma_init(dev, false);
+ if (ret)
+ return ret;
+
+ hw = mt76_hw(dev);
+ /* check hw sg support in order to enable AMSDU */
+ hw->max_tx_fragments = mdev->usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;
+
+ ret = mt7921_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 mt7921u_disconnect(struct usb_interface *usb_intf)
+{
+ struct mt7921_dev *dev = usb_get_intfdata(usb_intf);
+
+ cancel_work_sync(&dev->init_work);
+ if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state))
+ return;
+
+ mt76_unregister_device(&dev->mt76);
+ mt7921u_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 mt7921u_suspend(struct usb_interface *intf, pm_message_t state)
+{
+ struct mt7921_dev *dev = usb_get_intfdata(intf);
+ struct mt76_connac_pm *pm = &dev->pm;
+ int err;
+
+ pm->suspended = true;
+ flush_work(&dev->reset_work);
+
+ err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true);
+ if (err)
+ goto failed;
+
+ mt76u_stop_rx(&dev->mt76);
+ mt76u_stop_tx(&dev->mt76);
+
+ return 0;
+
+failed:
+ pm->suspended = false;
+
+ if (err < 0)
+ mt7921_reset(&dev->mt76);
+
+ return err;
+}
+
+static int mt7921u_resume(struct usb_interface *intf)
+{
+ struct mt7921_dev *dev = usb_get_intfdata(intf);
+ struct mt76_connac_pm *pm = &dev->pm;
+ bool reinit = true;
+ int err, i;
+
+ for (i = 0; i < 10; i++) {
+ u32 val = mt76_rr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT);
+
+ if (!(val & MT_WF_SW_SER_TRIGGER_SUSPEND)) {
+ reinit = false;
+ break;
+ }
+ if (val & MT_WF_SW_SER_DONE_SUSPEND) {
+ mt76_wr(dev, MT_WF_SW_DEF_CR_USB_MCU_EVENT, 0);
+ break;
+ }
+
+ msleep(20);
+ }
+
+ if (reinit || mt7921_dma_need_reinit(dev)) {
+ err = mt7921u_dma_init(dev, true);
+ if (err)
+ goto failed;
+ }
+
+ err = mt76u_resume_rx(&dev->mt76);
+ if (err < 0)
+ goto failed;
+
+ err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false);
+failed:
+ pm->suspended = false;
+
+ if (err < 0)
+ mt7921_reset(&dev->mt76);
+
+ return err;
+}
+#endif /* CONFIG_PM */
+
+MODULE_DEVICE_TABLE(usb, mt7921u_device_table);
+MODULE_FIRMWARE(MT7921_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7921_ROM_PATCH);
+
+static struct usb_driver mt7921u_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = mt7921u_device_table,
+ .probe = mt7921u_probe,
+ .disconnect = mt7921u_disconnect,
+#ifdef CONFIG_PM
+ .suspend = mt7921u_suspend,
+ .resume = mt7921u_resume,
+ .reset_resume = mt7921u_resume,
+#endif /* CONFIG_PM */
+ .soft_unbind = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(mt7921u_driver);
+
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
+MODULE_LICENSE("Dual BSD/GPL");